diff options
Diffstat (limited to 'sound/soc/tegra')
25 files changed, 3955 insertions, 1968 deletions
diff --git a/sound/soc/tegra/Kconfig b/sound/soc/tegra/Kconfig index ce1b773c351f..5331c61faf01 100644 --- a/sound/soc/tegra/Kconfig +++ b/sound/soc/tegra/Kconfig @@ -1,26 +1,53 @@ config SND_SOC_TEGRA tristate "SoC Audio for the Tegra System-on-Chip" depends on ARCH_TEGRA && TEGRA_SYSTEM_DMA + select REGMAP_MMIO help Say Y or M here if you want support for SoC audio on Tegra. -config SND_SOC_TEGRA_I2S +config SND_SOC_TEGRA20_DAS tristate - depends on SND_SOC_TEGRA + depends on SND_SOC_TEGRA && ARCH_TEGRA_2x_SOC + help + Say Y or M if you want to add support for the Tegra20 DAS module. + You will also need to select the individual machine drivers to + support below. + +config SND_SOC_TEGRA20_I2S + tristate + depends on SND_SOC_TEGRA && ARCH_TEGRA_2x_SOC + select SND_SOC_TEGRA20_DAS help Say Y or M if you want to add support for codecs attached to the - Tegra I2S interface. You will also need to select the individual + Tegra20 I2S interface. You will also need to select the individual machine drivers to support below. -config SND_SOC_TEGRA_SPDIF +config SND_SOC_TEGRA20_SPDIF tristate - depends on SND_SOC_TEGRA + depends on SND_SOC_TEGRA && ARCH_TEGRA_2x_SOC default m help - Say Y or M if you want to add support for the SPDIF interface. + Say Y or M if you want to add support for the Tegra20 SPDIF interface. You will also need to select the individual machine drivers to support below. +config SND_SOC_TEGRA30_AHUB + tristate + depends on SND_SOC_TEGRA && ARCH_TEGRA_3x_SOC + help + Say Y or M if you want to add support for the Tegra20 AHUB module. + You will also need to select the individual machine drivers to + support below. + +config SND_SOC_TEGRA30_I2S + tristate + depends on SND_SOC_TEGRA && ARCH_TEGRA_3x_SOC + select SND_SOC_TEGRA30_AHUB + help + Say Y or M if you want to add support for codecs attached to the + Tegra30 I2S interface. You will also need to select the individual + machine drivers to support below. + config MACH_HAS_SND_SOC_TEGRA_WM8903 bool help @@ -32,7 +59,8 @@ config SND_SOC_TEGRA_WM8903 tristate "SoC Audio support for Tegra boards using a WM8903 codec" depends on SND_SOC_TEGRA && I2C depends on MACH_HAS_SND_SOC_TEGRA_WM8903 - select SND_SOC_TEGRA_I2S + select SND_SOC_TEGRA20_I2S if ARCH_TEGRA_2x_SOC + select SND_SOC_TEGRA30_I2S if ARCH_TEGRA_3x_SOC select SND_SOC_WM8903 help Say Y or M here if you want to add support for SoC audio on Tegra @@ -42,17 +70,17 @@ config SND_SOC_TEGRA_WM8903 config SND_SOC_TEGRA_TRIMSLICE tristate "SoC Audio support for TrimSlice board" depends on SND_SOC_TEGRA && MACH_TRIMSLICE && I2C - select SND_SOC_TEGRA_I2S + select SND_SOC_TEGRA20_I2S if ARCH_TEGRA_2x_SOC select SND_SOC_TLV320AIC23 help Say Y or M here if you want to add support for SoC audio on the TrimSlice platform. config SND_SOC_TEGRA_ALC5632 - tristate "SoC Audio support for Tegra boards using an ALC5632 codec" - depends on SND_SOC_TEGRA && I2C - select SND_SOC_TEGRA_I2S - select SND_SOC_ALC5632 - help - Say Y or M here if you want to add support for SoC audio on the - Toshiba AC100 netbook. + tristate "SoC Audio support for Tegra boards using an ALC5632 codec" + depends on SND_SOC_TEGRA && I2C + select SND_SOC_TEGRA20_I2S if ARCH_TEGRA_2x_SOC + select SND_SOC_ALC5632 + help + Say Y or M here if you want to add support for SoC audio on the + Toshiba AC100 netbook. diff --git a/sound/soc/tegra/Makefile b/sound/soc/tegra/Makefile index 8e584b8fcfba..98704b48b62a 100644 --- a/sound/soc/tegra/Makefile +++ b/sound/soc/tegra/Makefile @@ -1,15 +1,19 @@ # Tegra platform Support -snd-soc-tegra-das-objs := tegra_das.o snd-soc-tegra-pcm-objs := tegra_pcm.o -snd-soc-tegra-i2s-objs := tegra_i2s.o -snd-soc-tegra-spdif-objs := tegra_spdif.o snd-soc-tegra-utils-objs += tegra_asoc_utils.o +snd-soc-tegra20-das-objs := tegra20_das.o +snd-soc-tegra20-i2s-objs := tegra20_i2s.o +snd-soc-tegra20-spdif-objs := tegra20_spdif.o +snd-soc-tegra30-ahub-objs := tegra30_ahub.o +snd-soc-tegra30-i2s-objs := tegra30_i2s.o -obj-$(CONFIG_SND_SOC_TEGRA) += snd-soc-tegra-utils.o -obj-$(CONFIG_SND_SOC_TEGRA) += snd-soc-tegra-das.o obj-$(CONFIG_SND_SOC_TEGRA) += snd-soc-tegra-pcm.o -obj-$(CONFIG_SND_SOC_TEGRA_I2S) += snd-soc-tegra-i2s.o -obj-$(CONFIG_SND_SOC_TEGRA_SPDIF) += snd-soc-tegra-spdif.o +obj-$(CONFIG_SND_SOC_TEGRA) += snd-soc-tegra-utils.o +obj-$(CONFIG_SND_SOC_TEGRA20_DAS) += snd-soc-tegra20-das.o +obj-$(CONFIG_SND_SOC_TEGRA20_I2S) += snd-soc-tegra20-i2s.o +obj-$(CONFIG_SND_SOC_TEGRA20_SPDIF) += snd-soc-tegra20-spdif.o +obj-$(CONFIG_SND_SOC_TEGRA30_AHUB) += snd-soc-tegra30-ahub.o +obj-$(CONFIG_SND_SOC_TEGRA30_I2S) += snd-soc-tegra30-i2s.o # Tegra machine Support snd-soc-tegra-wm8903-objs := tegra_wm8903.o diff --git a/sound/soc/tegra/tegra20_das.c b/sound/soc/tegra/tegra20_das.c new file mode 100644 index 000000000000..bf99296bce95 --- /dev/null +++ b/sound/soc/tegra/tegra20_das.c @@ -0,0 +1,233 @@ +/* + * tegra20_das.c - Tegra20 DAS driver + * + * Author: Stephen Warren <swarren@nvidia.com> + * Copyright (C) 2010 - NVIDIA, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include <linux/device.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> +#include <linux/slab.h> +#include <sound/soc.h> +#include "tegra20_das.h" + +#define DRV_NAME "tegra20-das" + +static struct tegra20_das *das; + +static inline void tegra20_das_write(u32 reg, u32 val) +{ + regmap_write(das->regmap, reg, val); +} + +static inline u32 tegra20_das_read(u32 reg) +{ + u32 val; + regmap_read(das->regmap, reg, &val); + return val; +} + +int tegra20_das_connect_dap_to_dac(int dap, int dac) +{ + u32 addr; + u32 reg; + + if (!das) + return -ENODEV; + + addr = TEGRA20_DAS_DAP_CTRL_SEL + + (dap * TEGRA20_DAS_DAP_CTRL_SEL_STRIDE); + reg = dac << TEGRA20_DAS_DAP_CTRL_SEL_DAP_CTRL_SEL_P; + + tegra20_das_write(addr, reg); + + return 0; +} +EXPORT_SYMBOL_GPL(tegra20_das_connect_dap_to_dac); + +int tegra20_das_connect_dap_to_dap(int dap, int otherdap, int master, + int sdata1rx, int sdata2rx) +{ + u32 addr; + u32 reg; + + if (!das) + return -ENODEV; + + addr = TEGRA20_DAS_DAP_CTRL_SEL + + (dap * TEGRA20_DAS_DAP_CTRL_SEL_STRIDE); + reg = otherdap << TEGRA20_DAS_DAP_CTRL_SEL_DAP_CTRL_SEL_P | + !!sdata2rx << TEGRA20_DAS_DAP_CTRL_SEL_DAP_SDATA2_TX_RX_P | + !!sdata1rx << TEGRA20_DAS_DAP_CTRL_SEL_DAP_SDATA1_TX_RX_P | + !!master << TEGRA20_DAS_DAP_CTRL_SEL_DAP_MS_SEL_P; + + tegra20_das_write(addr, reg); + + return 0; +} +EXPORT_SYMBOL_GPL(tegra20_das_connect_dap_to_dap); + +int tegra20_das_connect_dac_to_dap(int dac, int dap) +{ + u32 addr; + u32 reg; + + if (!das) + return -ENODEV; + + addr = TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL + + (dac * TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_STRIDE); + reg = dap << TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_CLK_SEL_P | + dap << TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA1_SEL_P | + dap << TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA2_SEL_P; + + tegra20_das_write(addr, reg); + + return 0; +} +EXPORT_SYMBOL_GPL(tegra20_das_connect_dac_to_dap); + +#define LAST_REG(name) \ + (TEGRA20_DAS_##name + \ + (TEGRA20_DAS_##name##_STRIDE * (TEGRA20_DAS_##name##_COUNT - 1))) + +static bool tegra20_das_wr_rd_reg(struct device *dev, unsigned int reg) +{ + if ((reg >= TEGRA20_DAS_DAP_CTRL_SEL) && + (reg <= LAST_REG(DAP_CTRL_SEL))) + return true; + if ((reg >= TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL) && + (reg <= LAST_REG(DAC_INPUT_DATA_CLK_SEL))) + return true; + + return false; +} + +static const struct regmap_config tegra20_das_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .max_register = LAST_REG(DAC_INPUT_DATA_CLK_SEL), + .writeable_reg = tegra20_das_wr_rd_reg, + .readable_reg = tegra20_das_wr_rd_reg, + .cache_type = REGCACHE_RBTREE, +}; + +static int __devinit tegra20_das_probe(struct platform_device *pdev) +{ + struct resource *res, *region; + void __iomem *regs; + int ret = 0; + + if (das) + return -ENODEV; + + das = devm_kzalloc(&pdev->dev, sizeof(struct tegra20_das), GFP_KERNEL); + if (!das) { + dev_err(&pdev->dev, "Can't allocate tegra20_das\n"); + ret = -ENOMEM; + goto err; + } + das->dev = &pdev->dev; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&pdev->dev, "No memory resource\n"); + ret = -ENODEV; + goto err; + } + + region = devm_request_mem_region(&pdev->dev, res->start, + resource_size(res), pdev->name); + if (!region) { + dev_err(&pdev->dev, "Memory region already claimed\n"); + ret = -EBUSY; + goto err; + } + + regs = devm_ioremap(&pdev->dev, res->start, resource_size(res)); + if (!regs) { + dev_err(&pdev->dev, "ioremap failed\n"); + ret = -ENOMEM; + goto err; + } + + das->regmap = devm_regmap_init_mmio(&pdev->dev, regs, + &tegra20_das_regmap_config); + if (IS_ERR(das->regmap)) { + dev_err(&pdev->dev, "regmap init failed\n"); + ret = PTR_ERR(das->regmap); + goto err; + } + + ret = tegra20_das_connect_dap_to_dac(TEGRA20_DAS_DAP_ID_1, + TEGRA20_DAS_DAP_SEL_DAC1); + if (ret) { + dev_err(&pdev->dev, "Can't set up DAS DAP connection\n"); + goto err; + } + ret = tegra20_das_connect_dac_to_dap(TEGRA20_DAS_DAC_ID_1, + TEGRA20_DAS_DAC_SEL_DAP1); + if (ret) { + dev_err(&pdev->dev, "Can't set up DAS DAC connection\n"); + goto err; + } + + platform_set_drvdata(pdev, das); + + return 0; + +err: + das = NULL; + return ret; +} + +static int __devexit tegra20_das_remove(struct platform_device *pdev) +{ + if (!das) + return -ENODEV; + + das = NULL; + + return 0; +} + +static const struct of_device_id tegra20_das_of_match[] __devinitconst = { + { .compatible = "nvidia,tegra20-das", }, + {}, +}; + +static struct platform_driver tegra20_das_driver = { + .probe = tegra20_das_probe, + .remove = __devexit_p(tegra20_das_remove), + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + .of_match_table = tegra20_das_of_match, + }, +}; +module_platform_driver(tegra20_das_driver); + +MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>"); +MODULE_DESCRIPTION("Tegra20 DAS driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:" DRV_NAME); +MODULE_DEVICE_TABLE(of, tegra20_das_of_match); diff --git a/sound/soc/tegra/tegra20_das.h b/sound/soc/tegra/tegra20_das.h new file mode 100644 index 000000000000..be217f3d3a75 --- /dev/null +++ b/sound/soc/tegra/tegra20_das.h @@ -0,0 +1,134 @@ +/* + * tegra20_das.h - Definitions for Tegra20 DAS driver + * + * Author: Stephen Warren <swarren@nvidia.com> + * Copyright (C) 2010,2012 - NVIDIA, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#ifndef __TEGRA20_DAS_H__ +#define __TEGRA20_DAS_H__ + +/* Register TEGRA20_DAS_DAP_CTRL_SEL */ +#define TEGRA20_DAS_DAP_CTRL_SEL 0x00 +#define TEGRA20_DAS_DAP_CTRL_SEL_COUNT 5 +#define TEGRA20_DAS_DAP_CTRL_SEL_STRIDE 4 +#define TEGRA20_DAS_DAP_CTRL_SEL_DAP_MS_SEL_P 31 +#define TEGRA20_DAS_DAP_CTRL_SEL_DAP_MS_SEL_S 1 +#define TEGRA20_DAS_DAP_CTRL_SEL_DAP_SDATA1_TX_RX_P 30 +#define TEGRA20_DAS_DAP_CTRL_SEL_DAP_SDATA1_TX_RX_S 1 +#define TEGRA20_DAS_DAP_CTRL_SEL_DAP_SDATA2_TX_RX_P 29 +#define TEGRA20_DAS_DAP_CTRL_SEL_DAP_SDATA2_TX_RX_S 1 +#define TEGRA20_DAS_DAP_CTRL_SEL_DAP_CTRL_SEL_P 0 +#define TEGRA20_DAS_DAP_CTRL_SEL_DAP_CTRL_SEL_S 5 + +/* Values for field TEGRA20_DAS_DAP_CTRL_SEL_DAP_CTRL_SEL */ +#define TEGRA20_DAS_DAP_SEL_DAC1 0 +#define TEGRA20_DAS_DAP_SEL_DAC2 1 +#define TEGRA20_DAS_DAP_SEL_DAC3 2 +#define TEGRA20_DAS_DAP_SEL_DAP1 16 +#define TEGRA20_DAS_DAP_SEL_DAP2 17 +#define TEGRA20_DAS_DAP_SEL_DAP3 18 +#define TEGRA20_DAS_DAP_SEL_DAP4 19 +#define TEGRA20_DAS_DAP_SEL_DAP5 20 + +/* Register TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL */ +#define TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL 0x40 +#define TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_COUNT 3 +#define TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_STRIDE 4 +#define TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA2_SEL_P 28 +#define TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA2_SEL_S 4 +#define TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA1_SEL_P 24 +#define TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA1_SEL_S 4 +#define TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_CLK_SEL_P 0 +#define TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_CLK_SEL_S 4 + +/* + * Values for: + * TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA2_SEL + * TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA1_SEL + * TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_CLK_SEL + */ +#define TEGRA20_DAS_DAC_SEL_DAP1 0 +#define TEGRA20_DAS_DAC_SEL_DAP2 1 +#define TEGRA20_DAS_DAC_SEL_DAP3 2 +#define TEGRA20_DAS_DAC_SEL_DAP4 3 +#define TEGRA20_DAS_DAC_SEL_DAP5 4 + +/* + * Names/IDs of the DACs/DAPs. + */ + +#define TEGRA20_DAS_DAP_ID_1 0 +#define TEGRA20_DAS_DAP_ID_2 1 +#define TEGRA20_DAS_DAP_ID_3 2 +#define TEGRA20_DAS_DAP_ID_4 3 +#define TEGRA20_DAS_DAP_ID_5 4 + +#define TEGRA20_DAS_DAC_ID_1 0 +#define TEGRA20_DAS_DAC_ID_2 1 +#define TEGRA20_DAS_DAC_ID_3 2 + +struct tegra20_das { + struct device *dev; + struct regmap *regmap; +}; + +/* + * Terminology: + * DAS: Digital audio switch (HW module controlled by this driver) + * DAP: Digital audio port (port/pins on Tegra device) + * DAC: Digital audio controller (e.g. I2S or AC97 controller elsewhere) + * + * The Tegra DAS is a mux/cross-bar which can connect each DAP to a specific + * DAC, or another DAP. When DAPs are connected, one must be the master and + * one the slave. Each DAC allows selection of a specific DAP for input, to + * cater for the case where N DAPs are connected to 1 DAC for broadcast + * output. + * + * This driver is dumb; no attempt is made to ensure that a valid routing + * configuration is programmed. + */ + +/* + * Connect a DAP to to a DAC + * dap_id: DAP to connect: TEGRA20_DAS_DAP_ID_* + * dac_sel: DAC to connect to: TEGRA20_DAS_DAP_SEL_DAC* + */ +extern int tegra20_das_connect_dap_to_dac(int dap_id, int dac_sel); + +/* + * Connect a DAP to to another DAP + * dap_id: DAP to connect: TEGRA20_DAS_DAP_ID_* + * other_dap_sel: DAP to connect to: TEGRA20_DAS_DAP_SEL_DAP* + * master: Is this DAP the master (1) or slave (0) + * sdata1rx: Is this DAP's SDATA1 pin RX (1) or TX (0) + * sdata2rx: Is this DAP's SDATA2 pin RX (1) or TX (0) + */ +extern int tegra20_das_connect_dap_to_dap(int dap_id, int other_dap_sel, + int master, int sdata1rx, + int sdata2rx); + +/* + * Connect a DAC's input to a DAP + * (DAC outputs are selected by the DAP) + * dac_id: DAC ID to connect: TEGRA20_DAS_DAC_ID_* + * dap_sel: DAP to receive input from: TEGRA20_DAS_DAC_SEL_DAP* + */ +extern int tegra20_das_connect_dac_to_dap(int dac_id, int dap_sel); + +#endif diff --git a/sound/soc/tegra/tegra20_i2s.c b/sound/soc/tegra/tegra20_i2s.c new file mode 100644 index 000000000000..0c7af63d444b --- /dev/null +++ b/sound/soc/tegra/tegra20_i2s.c @@ -0,0 +1,494 @@ +/* + * tegra20_i2s.c - Tegra20 I2S driver + * + * Author: Stephen Warren <swarren@nvidia.com> + * Copyright (C) 2010,2012 - NVIDIA, Inc. + * + * Based on code copyright/by: + * + * Copyright (c) 2009-2010, NVIDIA Corporation. + * Scott Peterson <speterson@nvidia.com> + * + * Copyright (C) 2010 Google, Inc. + * Iliyan Malchev <malchev@google.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include <linux/clk.h> +#include <linux/device.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> +#include <linux/regmap.h> +#include <linux/slab.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> + +#include "tegra20_i2s.h" + +#define DRV_NAME "tegra20-i2s" + +static inline void tegra20_i2s_write(struct tegra20_i2s *i2s, u32 reg, u32 val) +{ + regmap_write(i2s->regmap, reg, val); +} + +static inline u32 tegra20_i2s_read(struct tegra20_i2s *i2s, u32 reg) +{ + u32 val; + regmap_read(i2s->regmap, reg, &val); + return val; +} + +static int tegra20_i2s_runtime_suspend(struct device *dev) +{ + struct tegra20_i2s *i2s = dev_get_drvdata(dev); + + clk_disable(i2s->clk_i2s); + + return 0; +} + +static int tegra20_i2s_runtime_resume(struct device *dev) +{ + struct tegra20_i2s *i2s = dev_get_drvdata(dev); + int ret; + + ret = clk_enable(i2s->clk_i2s); + if (ret) { + dev_err(dev, "clk_enable failed: %d\n", ret); + return ret; + } + + return 0; +} + +static int tegra20_i2s_set_fmt(struct snd_soc_dai *dai, + unsigned int fmt) +{ + struct tegra20_i2s *i2s = snd_soc_dai_get_drvdata(dai); + + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + default: + return -EINVAL; + } + + i2s->reg_ctrl &= ~TEGRA20_I2S_CTRL_MASTER_ENABLE; + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBS_CFS: + i2s->reg_ctrl |= TEGRA20_I2S_CTRL_MASTER_ENABLE; + break; + case SND_SOC_DAIFMT_CBM_CFM: + break; + default: + return -EINVAL; + } + + i2s->reg_ctrl &= ~(TEGRA20_I2S_CTRL_BIT_FORMAT_MASK | + TEGRA20_I2S_CTRL_LRCK_MASK); + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_DSP_A: + i2s->reg_ctrl |= TEGRA20_I2S_CTRL_BIT_FORMAT_DSP; + i2s->reg_ctrl |= TEGRA20_I2S_CTRL_LRCK_L_LOW; + break; + case SND_SOC_DAIFMT_DSP_B: + i2s->reg_ctrl |= TEGRA20_I2S_CTRL_BIT_FORMAT_DSP; + i2s->reg_ctrl |= TEGRA20_I2S_CTRL_LRCK_R_LOW; + break; + case SND_SOC_DAIFMT_I2S: + i2s->reg_ctrl |= TEGRA20_I2S_CTRL_BIT_FORMAT_I2S; + i2s->reg_ctrl |= TEGRA20_I2S_CTRL_LRCK_L_LOW; + break; + case SND_SOC_DAIFMT_RIGHT_J: + i2s->reg_ctrl |= TEGRA20_I2S_CTRL_BIT_FORMAT_RJM; + i2s->reg_ctrl |= TEGRA20_I2S_CTRL_LRCK_L_LOW; + break; + case SND_SOC_DAIFMT_LEFT_J: + i2s->reg_ctrl |= TEGRA20_I2S_CTRL_BIT_FORMAT_LJM; + i2s->reg_ctrl |= TEGRA20_I2S_CTRL_LRCK_L_LOW; + break; + default: + return -EINVAL; + } + + return 0; +} + +static int tegra20_i2s_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct device *dev = substream->pcm->card->dev; + struct tegra20_i2s *i2s = snd_soc_dai_get_drvdata(dai); + u32 reg; + int ret, sample_size, srate, i2sclock, bitcnt; + + i2s->reg_ctrl &= ~TEGRA20_I2S_CTRL_BIT_SIZE_MASK; + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + i2s->reg_ctrl |= TEGRA20_I2S_CTRL_BIT_SIZE_16; + sample_size = 16; + break; + case SNDRV_PCM_FORMAT_S24_LE: + i2s->reg_ctrl |= TEGRA20_I2S_CTRL_BIT_SIZE_24; + sample_size = 24; + break; + case SNDRV_PCM_FORMAT_S32_LE: + i2s->reg_ctrl |= TEGRA20_I2S_CTRL_BIT_SIZE_32; + sample_size = 32; + break; + default: + return -EINVAL; + } + + srate = params_rate(params); + + /* Final "* 2" required by Tegra hardware */ + i2sclock = srate * params_channels(params) * sample_size * 2; + + ret = clk_set_rate(i2s->clk_i2s, i2sclock); + if (ret) { + dev_err(dev, "Can't set I2S clock rate: %d\n", ret); + return ret; + } + + bitcnt = (i2sclock / (2 * srate)) - 1; + if (bitcnt < 0 || bitcnt > TEGRA20_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US) + return -EINVAL; + reg = bitcnt << TEGRA20_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT; + + if (i2sclock % (2 * srate)) + reg |= TEGRA20_I2S_TIMING_NON_SYM_ENABLE; + + tegra20_i2s_write(i2s, TEGRA20_I2S_TIMING, reg); + + tegra20_i2s_write(i2s, TEGRA20_I2S_FIFO_SCR, + TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_FOUR_SLOTS | + TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_FOUR_SLOTS); + + return 0; +} + +static void tegra20_i2s_start_playback(struct tegra20_i2s *i2s) +{ + i2s->reg_ctrl |= TEGRA20_I2S_CTRL_FIFO1_ENABLE; + tegra20_i2s_write(i2s, TEGRA20_I2S_CTRL, i2s->reg_ctrl); +} + +static void tegra20_i2s_stop_playback(struct tegra20_i2s *i2s) +{ + i2s->reg_ctrl &= ~TEGRA20_I2S_CTRL_FIFO1_ENABLE; + tegra20_i2s_write(i2s, TEGRA20_I2S_CTRL, i2s->reg_ctrl); +} + +static void tegra20_i2s_start_capture(struct tegra20_i2s *i2s) +{ + i2s->reg_ctrl |= TEGRA20_I2S_CTRL_FIFO2_ENABLE; + tegra20_i2s_write(i2s, TEGRA20_I2S_CTRL, i2s->reg_ctrl); +} + +static void tegra20_i2s_stop_capture(struct tegra20_i2s *i2s) +{ + i2s->reg_ctrl &= ~TEGRA20_I2S_CTRL_FIFO2_ENABLE; + tegra20_i2s_write(i2s, TEGRA20_I2S_CTRL, i2s->reg_ctrl); +} + +static int tegra20_i2s_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai) +{ + struct tegra20_i2s *i2s = snd_soc_dai_get_drvdata(dai); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + case SNDRV_PCM_TRIGGER_RESUME: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + tegra20_i2s_start_playback(i2s); + else + tegra20_i2s_start_capture(i2s); + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + case SNDRV_PCM_TRIGGER_SUSPEND: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + tegra20_i2s_stop_playback(i2s); + else + tegra20_i2s_stop_capture(i2s); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int tegra20_i2s_probe(struct snd_soc_dai *dai) +{ + struct tegra20_i2s *i2s = snd_soc_dai_get_drvdata(dai); + + dai->capture_dma_data = &i2s->capture_dma_data; + dai->playback_dma_data = &i2s->playback_dma_data; + + return 0; +} + +static const struct snd_soc_dai_ops tegra20_i2s_dai_ops = { + .set_fmt = tegra20_i2s_set_fmt, + .hw_params = tegra20_i2s_hw_params, + .trigger = tegra20_i2s_trigger, +}; + +static const struct snd_soc_dai_driver tegra20_i2s_dai_template = { + .probe = tegra20_i2s_probe, + .playback = { + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_96000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + .capture = { + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_96000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + .ops = &tegra20_i2s_dai_ops, + .symmetric_rates = 1, +}; + +static bool tegra20_i2s_wr_rd_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TEGRA20_I2S_CTRL: + case TEGRA20_I2S_STATUS: + case TEGRA20_I2S_TIMING: + case TEGRA20_I2S_FIFO_SCR: + case TEGRA20_I2S_PCM_CTRL: + case TEGRA20_I2S_NW_CTRL: + case TEGRA20_I2S_TDM_CTRL: + case TEGRA20_I2S_TDM_TX_RX_CTRL: + case TEGRA20_I2S_FIFO1: + case TEGRA20_I2S_FIFO2: + return true; + default: + return false; + }; +} + +static bool tegra20_i2s_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TEGRA20_I2S_STATUS: + case TEGRA20_I2S_FIFO_SCR: + case TEGRA20_I2S_FIFO1: + case TEGRA20_I2S_FIFO2: + return true; + default: + return false; + }; +} + +static bool tegra20_i2s_precious_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TEGRA20_I2S_FIFO1: + case TEGRA20_I2S_FIFO2: + return true; + default: + return false; + }; +} + +static const struct regmap_config tegra20_i2s_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .max_register = TEGRA20_I2S_FIFO2, + .writeable_reg = tegra20_i2s_wr_rd_reg, + .readable_reg = tegra20_i2s_wr_rd_reg, + .volatile_reg = tegra20_i2s_volatile_reg, + .precious_reg = tegra20_i2s_precious_reg, + .cache_type = REGCACHE_RBTREE, +}; + +static __devinit int tegra20_i2s_platform_probe(struct platform_device *pdev) +{ + struct tegra20_i2s *i2s; + struct resource *mem, *memregion, *dmareq; + u32 of_dma[2]; + u32 dma_ch; + void __iomem *regs; + int ret; + + i2s = devm_kzalloc(&pdev->dev, sizeof(struct tegra20_i2s), GFP_KERNEL); + if (!i2s) { + dev_err(&pdev->dev, "Can't allocate tegra20_i2s\n"); + ret = -ENOMEM; + goto err; + } + dev_set_drvdata(&pdev->dev, i2s); + + i2s->dai = tegra20_i2s_dai_template; + i2s->dai.name = dev_name(&pdev->dev); + + i2s->clk_i2s = clk_get(&pdev->dev, NULL); + if (IS_ERR(i2s->clk_i2s)) { + dev_err(&pdev->dev, "Can't retrieve i2s clock\n"); + ret = PTR_ERR(i2s->clk_i2s); + goto err; + } + + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!mem) { + dev_err(&pdev->dev, "No memory resource\n"); + ret = -ENODEV; + goto err_clk_put; + } + + dmareq = platform_get_resource(pdev, IORESOURCE_DMA, 0); + if (!dmareq) { + if (of_property_read_u32_array(pdev->dev.of_node, + "nvidia,dma-request-selector", + of_dma, 2) < 0) { + dev_err(&pdev->dev, "No DMA resource\n"); + ret = -ENODEV; + goto err_clk_put; + } + dma_ch = of_dma[1]; + } else { + dma_ch = dmareq->start; + } + + memregion = devm_request_mem_region(&pdev->dev, mem->start, + resource_size(mem), DRV_NAME); + if (!memregion) { + dev_err(&pdev->dev, "Memory region already claimed\n"); + ret = -EBUSY; + goto err_clk_put; + } + + regs = devm_ioremap(&pdev->dev, mem->start, resource_size(mem)); + if (!regs) { + dev_err(&pdev->dev, "ioremap failed\n"); + ret = -ENOMEM; + goto err_clk_put; + } + + i2s->regmap = devm_regmap_init_mmio(&pdev->dev, regs, + &tegra20_i2s_regmap_config); + if (IS_ERR(i2s->regmap)) { + dev_err(&pdev->dev, "regmap init failed\n"); + ret = PTR_ERR(i2s->regmap); + goto err_clk_put; + } + + i2s->capture_dma_data.addr = mem->start + TEGRA20_I2S_FIFO2; + i2s->capture_dma_data.wrap = 4; + i2s->capture_dma_data.width = 32; + i2s->capture_dma_data.req_sel = dma_ch; + + i2s->playback_dma_data.addr = mem->start + TEGRA20_I2S_FIFO1; + i2s->playback_dma_data.wrap = 4; + i2s->playback_dma_data.width = 32; + i2s->playback_dma_data.req_sel = dma_ch; + + i2s->reg_ctrl = TEGRA20_I2S_CTRL_FIFO_FORMAT_PACKED; + + pm_runtime_enable(&pdev->dev); + if (!pm_runtime_enabled(&pdev->dev)) { + ret = tegra20_i2s_runtime_resume(&pdev->dev); + if (ret) + goto err_pm_disable; + } + + ret = snd_soc_register_dai(&pdev->dev, &i2s->dai); + if (ret) { + dev_err(&pdev->dev, "Could not register DAI: %d\n", ret); + ret = -ENOMEM; + goto err_suspend; + } + + ret = tegra_pcm_platform_register(&pdev->dev); + if (ret) { + dev_err(&pdev->dev, "Could not register PCM: %d\n", ret); + goto err_unregister_dai; + } + + return 0; + +err_unregister_dai: + snd_soc_unregister_dai(&pdev->dev); +err_suspend: + if (!pm_runtime_status_suspended(&pdev->dev)) + tegra20_i2s_runtime_suspend(&pdev->dev); +err_pm_disable: + pm_runtime_disable(&pdev->dev); +err_clk_put: + clk_put(i2s->clk_i2s); +err: + return ret; +} + +static int __devexit tegra20_i2s_platform_remove(struct platform_device *pdev) +{ + struct tegra20_i2s *i2s = dev_get_drvdata(&pdev->dev); + + pm_runtime_disable(&pdev->dev); + if (!pm_runtime_status_suspended(&pdev->dev)) + tegra20_i2s_runtime_suspend(&pdev->dev); + + tegra_pcm_platform_unregister(&pdev->dev); + snd_soc_unregister_dai(&pdev->dev); + + clk_put(i2s->clk_i2s); + + return 0; +} + +static const struct of_device_id tegra20_i2s_of_match[] __devinitconst = { + { .compatible = "nvidia,tegra20-i2s", }, + {}, +}; + +static const struct dev_pm_ops tegra20_i2s_pm_ops __devinitconst = { + SET_RUNTIME_PM_OPS(tegra20_i2s_runtime_suspend, + tegra20_i2s_runtime_resume, NULL) +}; + +static struct platform_driver tegra20_i2s_driver = { + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + .of_match_table = tegra20_i2s_of_match, + .pm = &tegra20_i2s_pm_ops, + }, + .probe = tegra20_i2s_platform_probe, + .remove = __devexit_p(tegra20_i2s_platform_remove), +}; +module_platform_driver(tegra20_i2s_driver); + +MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>"); +MODULE_DESCRIPTION("Tegra20 I2S ASoC driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:" DRV_NAME); +MODULE_DEVICE_TABLE(of, tegra20_i2s_of_match); diff --git a/sound/soc/tegra/tegra20_i2s.h b/sound/soc/tegra/tegra20_i2s.h new file mode 100644 index 000000000000..a57efc6a597e --- /dev/null +++ b/sound/soc/tegra/tegra20_i2s.h @@ -0,0 +1,164 @@ +/* + * tegra20_i2s.h - Definitions for Tegra20 I2S driver + * + * Author: Stephen Warren <swarren@nvidia.com> + * Copyright (C) 2010,2012 - NVIDIA, Inc. + * + * Based on code copyright/by: + * + * Copyright (c) 2009-2010, NVIDIA Corporation. + * Scott Peterson <speterson@nvidia.com> + * + * Copyright (C) 2010 Google, Inc. + * Iliyan Malchev <malchev@google.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#ifndef __TEGRA20_I2S_H__ +#define __TEGRA20_I2S_H__ + +#include "tegra_pcm.h" + +/* Register offsets from TEGRA20_I2S1_BASE and TEGRA20_I2S2_BASE */ + +#define TEGRA20_I2S_CTRL 0x00 +#define TEGRA20_I2S_STATUS 0x04 +#define TEGRA20_I2S_TIMING 0x08 +#define TEGRA20_I2S_FIFO_SCR 0x0c +#define TEGRA20_I2S_PCM_CTRL 0x10 +#define TEGRA20_I2S_NW_CTRL 0x14 +#define TEGRA20_I2S_TDM_CTRL 0x20 +#define TEGRA20_I2S_TDM_TX_RX_CTRL 0x24 +#define TEGRA20_I2S_FIFO1 0x40 +#define TEGRA20_I2S_FIFO2 0x80 + +/* Fields in TEGRA20_I2S_CTRL */ + +#define TEGRA20_I2S_CTRL_FIFO2_TX_ENABLE (1 << 30) +#define TEGRA20_I2S_CTRL_FIFO1_ENABLE (1 << 29) +#define TEGRA20_I2S_CTRL_FIFO2_ENABLE (1 << 28) +#define TEGRA20_I2S_CTRL_FIFO1_RX_ENABLE (1 << 27) +#define TEGRA20_I2S_CTRL_FIFO_LPBK_ENABLE (1 << 26) +#define TEGRA20_I2S_CTRL_MASTER_ENABLE (1 << 25) + +#define TEGRA20_I2S_LRCK_LEFT_LOW 0 +#define TEGRA20_I2S_LRCK_RIGHT_LOW 1 + +#define TEGRA20_I2S_CTRL_LRCK_SHIFT 24 +#define TEGRA20_I2S_CTRL_LRCK_MASK (1 << TEGRA20_I2S_CTRL_LRCK_SHIFT) +#define TEGRA20_I2S_CTRL_LRCK_L_LOW (TEGRA20_I2S_LRCK_LEFT_LOW << TEGRA20_I2S_CTRL_LRCK_SHIFT) +#define TEGRA20_I2S_CTRL_LRCK_R_LOW (TEGRA20_I2S_LRCK_RIGHT_LOW << TEGRA20_I2S_CTRL_LRCK_SHIFT) + +#define TEGRA20_I2S_BIT_FORMAT_I2S 0 +#define TEGRA20_I2S_BIT_FORMAT_RJM 1 +#define TEGRA20_I2S_BIT_FORMAT_LJM 2 +#define TEGRA20_I2S_BIT_FORMAT_DSP 3 + +#define TEGRA20_I2S_CTRL_BIT_FORMAT_SHIFT 10 +#define TEGRA20_I2S_CTRL_BIT_FORMAT_MASK (3 << TEGRA20_I2S_CTRL_BIT_FORMAT_SHIFT) +#define TEGRA20_I2S_CTRL_BIT_FORMAT_I2S (TEGRA20_I2S_BIT_FORMAT_I2S << TEGRA20_I2S_CTRL_BIT_FORMAT_SHIFT) +#define TEGRA20_I2S_CTRL_BIT_FORMAT_RJM (TEGRA20_I2S_BIT_FORMAT_RJM << TEGRA20_I2S_CTRL_BIT_FORMAT_SHIFT) +#define TEGRA20_I2S_CTRL_BIT_FORMAT_LJM (TEGRA20_I2S_BIT_FORMAT_LJM << TEGRA20_I2S_CTRL_BIT_FORMAT_SHIFT) +#define TEGRA20_I2S_CTRL_BIT_FORMAT_DSP (TEGRA20_I2S_BIT_FORMAT_DSP << TEGRA20_I2S_CTRL_BIT_FORMAT_SHIFT) + +#define TEGRA20_I2S_BIT_SIZE_16 0 +#define TEGRA20_I2S_BIT_SIZE_20 1 +#define TEGRA20_I2S_BIT_SIZE_24 2 +#define TEGRA20_I2S_BIT_SIZE_32 3 + +#define TEGRA20_I2S_CTRL_BIT_SIZE_SHIFT 8 +#define TEGRA20_I2S_CTRL_BIT_SIZE_MASK (3 << TEGRA20_I2S_CTRL_BIT_SIZE_SHIFT) +#define TEGRA20_I2S_CTRL_BIT_SIZE_16 (TEGRA20_I2S_BIT_SIZE_16 << TEGRA20_I2S_CTRL_BIT_SIZE_SHIFT) +#define TEGRA20_I2S_CTRL_BIT_SIZE_20 (TEGRA20_I2S_BIT_SIZE_20 << TEGRA20_I2S_CTRL_BIT_SIZE_SHIFT) +#define TEGRA20_I2S_CTRL_BIT_SIZE_24 (TEGRA20_I2S_BIT_SIZE_24 << TEGRA20_I2S_CTRL_BIT_SIZE_SHIFT) +#define TEGRA20_I2S_CTRL_BIT_SIZE_32 (TEGRA20_I2S_BIT_SIZE_32 << TEGRA20_I2S_CTRL_BIT_SIZE_SHIFT) + +#define TEGRA20_I2S_FIFO_16_LSB 0 +#define TEGRA20_I2S_FIFO_20_LSB 1 +#define TEGRA20_I2S_FIFO_24_LSB 2 +#define TEGRA20_I2S_FIFO_32 3 +#define TEGRA20_I2S_FIFO_PACKED 7 + +#define TEGRA20_I2S_CTRL_FIFO_FORMAT_SHIFT 4 +#define TEGRA20_I2S_CTRL_FIFO_FORMAT_MASK (7 << TEGRA20_I2S_CTRL_FIFO_FORMAT_SHIFT) +#define TEGRA20_I2S_CTRL_FIFO_FORMAT_16_LSB (TEGRA20_I2S_FIFO_16_LSB << TEGRA20_I2S_CTRL_FIFO_FORMAT_SHIFT) +#define TEGRA20_I2S_CTRL_FIFO_FORMAT_20_LSB (TEGRA20_I2S_FIFO_20_LSB << TEGRA20_I2S_CTRL_FIFO_FORMAT_SHIFT) +#define TEGRA20_I2S_CTRL_FIFO_FORMAT_24_LSB (TEGRA20_I2S_FIFO_24_LSB << TEGRA20_I2S_CTRL_FIFO_FORMAT_SHIFT) +#define TEGRA20_I2S_CTRL_FIFO_FORMAT_32 (TEGRA20_I2S_FIFO_32 << TEGRA20_I2S_CTRL_FIFO_FORMAT_SHIFT) +#define TEGRA20_I2S_CTRL_FIFO_FORMAT_PACKED (TEGRA20_I2S_FIFO_PACKED << TEGRA20_I2S_CTRL_FIFO_FORMAT_SHIFT) + +#define TEGRA20_I2S_CTRL_IE_FIFO1_ERR (1 << 3) +#define TEGRA20_I2S_CTRL_IE_FIFO2_ERR (1 << 2) +#define TEGRA20_I2S_CTRL_QE_FIFO1 (1 << 1) +#define TEGRA20_I2S_CTRL_QE_FIFO2 (1 << 0) + +/* Fields in TEGRA20_I2S_STATUS */ + +#define TEGRA20_I2S_STATUS_FIFO1_RDY (1 << 31) +#define TEGRA20_I2S_STATUS_FIFO2_RDY (1 << 30) +#define TEGRA20_I2S_STATUS_FIFO1_BSY (1 << 29) +#define TEGRA20_I2S_STATUS_FIFO2_BSY (1 << 28) +#define TEGRA20_I2S_STATUS_FIFO1_ERR (1 << 3) +#define TEGRA20_I2S_STATUS_FIFO2_ERR (1 << 2) +#define TEGRA20_I2S_STATUS_QS_FIFO1 (1 << 1) +#define TEGRA20_I2S_STATUS_QS_FIFO2 (1 << 0) + +/* Fields in TEGRA20_I2S_TIMING */ + +#define TEGRA20_I2S_TIMING_NON_SYM_ENABLE (1 << 12) +#define TEGRA20_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT 0 +#define TEGRA20_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US 0x7fff +#define TEGRA20_I2S_TIMING_CHANNEL_BIT_COUNT_MASK (TEGRA20_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US << TEGRA20_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT) + +/* Fields in TEGRA20_I2S_FIFO_SCR */ + +#define TEGRA20_I2S_FIFO_SCR_FIFO2_FULL_EMPTY_COUNT_SHIFT 24 +#define TEGRA20_I2S_FIFO_SCR_FIFO1_FULL_EMPTY_COUNT_SHIFT 16 +#define TEGRA20_I2S_FIFO_SCR_FIFO_FULL_EMPTY_COUNT_MASK 0x3f + +#define TEGRA20_I2S_FIFO_SCR_FIFO2_CLR (1 << 12) +#define TEGRA20_I2S_FIFO_SCR_FIFO1_CLR (1 << 8) + +#define TEGRA20_I2S_FIFO_ATN_LVL_ONE_SLOT 0 +#define TEGRA20_I2S_FIFO_ATN_LVL_FOUR_SLOTS 1 +#define TEGRA20_I2S_FIFO_ATN_LVL_EIGHT_SLOTS 2 +#define TEGRA20_I2S_FIFO_ATN_LVL_TWELVE_SLOTS 3 + +#define TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT 4 +#define TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_MASK (3 << TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT) +#define TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_ONE_SLOT (TEGRA20_I2S_FIFO_ATN_LVL_ONE_SLOT << TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT) +#define TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_FOUR_SLOTS (TEGRA20_I2S_FIFO_ATN_LVL_FOUR_SLOTS << TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT) +#define TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_EIGHT_SLOTS (TEGRA20_I2S_FIFO_ATN_LVL_EIGHT_SLOTS << TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT) +#define TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_TWELVE_SLOTS (TEGRA20_I2S_FIFO_ATN_LVL_TWELVE_SLOTS << TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT) + +#define TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT 0 +#define TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_MASK (3 << TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT) +#define TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_ONE_SLOT (TEGRA20_I2S_FIFO_ATN_LVL_ONE_SLOT << TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT) +#define TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_FOUR_SLOTS (TEGRA20_I2S_FIFO_ATN_LVL_FOUR_SLOTS << TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT) +#define TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_EIGHT_SLOTS (TEGRA20_I2S_FIFO_ATN_LVL_EIGHT_SLOTS << TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT) +#define TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_TWELVE_SLOTS (TEGRA20_I2S_FIFO_ATN_LVL_TWELVE_SLOTS << TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT) + +struct tegra20_i2s { + struct snd_soc_dai_driver dai; + struct clk *clk_i2s; + struct tegra_pcm_dma_params capture_dma_data; + struct tegra_pcm_dma_params playback_dma_data; + struct regmap *regmap; + u32 reg_ctrl; +}; + +#endif diff --git a/sound/soc/tegra/tegra20_spdif.c b/sound/soc/tegra/tegra20_spdif.c new file mode 100644 index 000000000000..f9b57418bd08 --- /dev/null +++ b/sound/soc/tegra/tegra20_spdif.c @@ -0,0 +1,404 @@ +/* + * tegra20_spdif.c - Tegra20 SPDIF driver + * + * Author: Stephen Warren <swarren@nvidia.com> + * Copyright (C) 2011-2012 - NVIDIA, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include <linux/clk.h> +#include <linux/device.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> +#include <linux/regmap.h> +#include <linux/slab.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> + +#include "tegra20_spdif.h" + +#define DRV_NAME "tegra20-spdif" + +static inline void tegra20_spdif_write(struct tegra20_spdif *spdif, u32 reg, + u32 val) +{ + regmap_write(spdif->regmap, reg, val); +} + +static inline u32 tegra20_spdif_read(struct tegra20_spdif *spdif, u32 reg) +{ + u32 val; + regmap_read(spdif->regmap, reg, &val); + return val; +} + +static int tegra20_spdif_runtime_suspend(struct device *dev) +{ + struct tegra20_spdif *spdif = dev_get_drvdata(dev); + + clk_disable(spdif->clk_spdif_out); + + return 0; +} + +static int tegra20_spdif_runtime_resume(struct device *dev) +{ + struct tegra20_spdif *spdif = dev_get_drvdata(dev); + int ret; + + ret = clk_enable(spdif->clk_spdif_out); + if (ret) { + dev_err(dev, "clk_enable failed: %d\n", ret); + return ret; + } + + return 0; +} + +static int tegra20_spdif_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct device *dev = substream->pcm->card->dev; + struct tegra20_spdif *spdif = snd_soc_dai_get_drvdata(dai); + int ret, spdifclock; + + spdif->reg_ctrl &= ~TEGRA20_SPDIF_CTRL_PACK; + spdif->reg_ctrl &= ~TEGRA20_SPDIF_CTRL_BIT_MODE_MASK; + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + spdif->reg_ctrl |= TEGRA20_SPDIF_CTRL_PACK; + spdif->reg_ctrl |= TEGRA20_SPDIF_CTRL_BIT_MODE_16BIT; + break; + default: + return -EINVAL; + } + + switch (params_rate(params)) { + case 32000: + spdifclock = 4096000; + break; + case 44100: + spdifclock = 5644800; + break; + case 48000: + spdifclock = 6144000; + break; + case 88200: + spdifclock = 11289600; + break; + case 96000: + spdifclock = 12288000; + break; + case 176400: + spdifclock = 22579200; + break; + case 192000: + spdifclock = 24576000; + break; + default: + return -EINVAL; + } + + ret = clk_set_rate(spdif->clk_spdif_out, spdifclock); + if (ret) { + dev_err(dev, "Can't set SPDIF clock rate: %d\n", ret); + return ret; + } + + return 0; +} + +static void tegra20_spdif_start_playback(struct tegra20_spdif *spdif) +{ + spdif->reg_ctrl |= TEGRA20_SPDIF_CTRL_TX_EN; + tegra20_spdif_write(spdif, TEGRA20_SPDIF_CTRL, spdif->reg_ctrl); +} + +static void tegra20_spdif_stop_playback(struct tegra20_spdif *spdif) +{ + spdif->reg_ctrl &= ~TEGRA20_SPDIF_CTRL_TX_EN; + tegra20_spdif_write(spdif, TEGRA20_SPDIF_CTRL, spdif->reg_ctrl); +} + +static int tegra20_spdif_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai) +{ + struct tegra20_spdif *spdif = snd_soc_dai_get_drvdata(dai); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + case SNDRV_PCM_TRIGGER_RESUME: + tegra20_spdif_start_playback(spdif); + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + case SNDRV_PCM_TRIGGER_SUSPEND: + tegra20_spdif_stop_playback(spdif); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int tegra20_spdif_probe(struct snd_soc_dai *dai) +{ + struct tegra20_spdif *spdif = snd_soc_dai_get_drvdata(dai); + + dai->capture_dma_data = NULL; + dai->playback_dma_data = &spdif->playback_dma_data; + + return 0; +} + +static const struct snd_soc_dai_ops tegra20_spdif_dai_ops = { + .hw_params = tegra20_spdif_hw_params, + .trigger = tegra20_spdif_trigger, +}; + +static struct snd_soc_dai_driver tegra20_spdif_dai = { + .name = DRV_NAME, + .probe = tegra20_spdif_probe, + .playback = { + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + .ops = &tegra20_spdif_dai_ops, +}; + +static bool tegra20_spdif_wr_rd_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TEGRA20_SPDIF_CTRL: + case TEGRA20_SPDIF_STATUS: + case TEGRA20_SPDIF_STROBE_CTRL: + case TEGRA20_SPDIF_DATA_FIFO_CSR: + case TEGRA20_SPDIF_DATA_OUT: + case TEGRA20_SPDIF_DATA_IN: + case TEGRA20_SPDIF_CH_STA_RX_A: + case TEGRA20_SPDIF_CH_STA_RX_B: + case TEGRA20_SPDIF_CH_STA_RX_C: + case TEGRA20_SPDIF_CH_STA_RX_D: + case TEGRA20_SPDIF_CH_STA_RX_E: + case TEGRA20_SPDIF_CH_STA_RX_F: + case TEGRA20_SPDIF_CH_STA_TX_A: + case TEGRA20_SPDIF_CH_STA_TX_B: + case TEGRA20_SPDIF_CH_STA_TX_C: + case TEGRA20_SPDIF_CH_STA_TX_D: + case TEGRA20_SPDIF_CH_STA_TX_E: + case TEGRA20_SPDIF_CH_STA_TX_F: + case TEGRA20_SPDIF_USR_STA_RX_A: + case TEGRA20_SPDIF_USR_DAT_TX_A: + return true; + default: + return false; + }; +} + +static bool tegra20_spdif_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TEGRA20_SPDIF_STATUS: + case TEGRA20_SPDIF_DATA_FIFO_CSR: + case TEGRA20_SPDIF_DATA_OUT: + case TEGRA20_SPDIF_DATA_IN: + case TEGRA20_SPDIF_CH_STA_RX_A: + case TEGRA20_SPDIF_CH_STA_RX_B: + case TEGRA20_SPDIF_CH_STA_RX_C: + case TEGRA20_SPDIF_CH_STA_RX_D: + case TEGRA20_SPDIF_CH_STA_RX_E: + case TEGRA20_SPDIF_CH_STA_RX_F: + case TEGRA20_SPDIF_USR_STA_RX_A: + case TEGRA20_SPDIF_USR_DAT_TX_A: + return true; + default: + return false; + }; +} + +static bool tegra20_spdif_precious_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TEGRA20_SPDIF_DATA_OUT: + case TEGRA20_SPDIF_DATA_IN: + case TEGRA20_SPDIF_USR_STA_RX_A: + case TEGRA20_SPDIF_USR_DAT_TX_A: + return true; + default: + return false; + }; +} + +static const struct regmap_config tegra20_spdif_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .max_register = TEGRA20_SPDIF_USR_DAT_TX_A, + .writeable_reg = tegra20_spdif_wr_rd_reg, + .readable_reg = tegra20_spdif_wr_rd_reg, + .volatile_reg = tegra20_spdif_volatile_reg, + .precious_reg = tegra20_spdif_precious_reg, + .cache_type = REGCACHE_RBTREE, +}; + +static __devinit int tegra20_spdif_platform_probe(struct platform_device *pdev) +{ + struct tegra20_spdif *spdif; + struct resource *mem, *memregion, *dmareq; + void __iomem *regs; + int ret; + + spdif = devm_kzalloc(&pdev->dev, sizeof(struct tegra20_spdif), + GFP_KERNEL); + if (!spdif) { + dev_err(&pdev->dev, "Can't allocate tegra20_spdif\n"); + ret = -ENOMEM; + goto err; + } + dev_set_drvdata(&pdev->dev, spdif); + + spdif->clk_spdif_out = clk_get(&pdev->dev, "spdif_out"); + if (IS_ERR(spdif->clk_spdif_out)) { + pr_err("Can't retrieve spdif clock\n"); + ret = PTR_ERR(spdif->clk_spdif_out); + goto err; + } + + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!mem) { + dev_err(&pdev->dev, "No memory resource\n"); + ret = -ENODEV; + goto err_clk_put; + } + + dmareq = platform_get_resource(pdev, IORESOURCE_DMA, 0); + if (!dmareq) { + dev_err(&pdev->dev, "No DMA resource\n"); + ret = -ENODEV; + goto err_clk_put; + } + + memregion = devm_request_mem_region(&pdev->dev, mem->start, + resource_size(mem), DRV_NAME); + if (!memregion) { + dev_err(&pdev->dev, "Memory region already claimed\n"); + ret = -EBUSY; + goto err_clk_put; + } + + regs = devm_ioremap(&pdev->dev, mem->start, resource_size(mem)); + if (!regs) { + dev_err(&pdev->dev, "ioremap failed\n"); + ret = -ENOMEM; + goto err_clk_put; + } + + spdif->regmap = devm_regmap_init_mmio(&pdev->dev, regs, + &tegra20_spdif_regmap_config); + if (IS_ERR(spdif->regmap)) { + dev_err(&pdev->dev, "regmap init failed\n"); + ret = PTR_ERR(spdif->regmap); + goto err_clk_put; + } + + spdif->playback_dma_data.addr = mem->start + TEGRA20_SPDIF_DATA_OUT; + spdif->playback_dma_data.wrap = 4; + spdif->playback_dma_data.width = 32; + spdif->playback_dma_data.req_sel = dmareq->start; + + pm_runtime_enable(&pdev->dev); + if (!pm_runtime_enabled(&pdev->dev)) { + ret = tegra20_spdif_runtime_resume(&pdev->dev); + if (ret) + goto err_pm_disable; + } + + ret = snd_soc_register_dai(&pdev->dev, &tegra20_spdif_dai); + if (ret) { + dev_err(&pdev->dev, "Could not register DAI: %d\n", ret); + ret = -ENOMEM; + goto err_suspend; + } + + ret = tegra_pcm_platform_register(&pdev->dev); + if (ret) { + dev_err(&pdev->dev, "Could not register PCM: %d\n", ret); + goto err_unregister_dai; + } + + return 0; + +err_unregister_dai: + snd_soc_unregister_dai(&pdev->dev); +err_suspend: + if (!pm_runtime_status_suspended(&pdev->dev)) + tegra20_spdif_runtime_suspend(&pdev->dev); +err_pm_disable: + pm_runtime_disable(&pdev->dev); +err_clk_put: + clk_put(spdif->clk_spdif_out); +err: + return ret; +} + +static int __devexit tegra20_spdif_platform_remove(struct platform_device *pdev) +{ + struct tegra20_spdif *spdif = dev_get_drvdata(&pdev->dev); + + pm_runtime_disable(&pdev->dev); + if (!pm_runtime_status_suspended(&pdev->dev)) + tegra20_spdif_runtime_suspend(&pdev->dev); + + tegra_pcm_platform_unregister(&pdev->dev); + snd_soc_unregister_dai(&pdev->dev); + + clk_put(spdif->clk_spdif_out); + + return 0; +} + +static const struct dev_pm_ops tegra20_spdif_pm_ops __devinitconst = { + SET_RUNTIME_PM_OPS(tegra20_spdif_runtime_suspend, + tegra20_spdif_runtime_resume, NULL) +}; + +static struct platform_driver tegra20_spdif_driver = { + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + .pm = &tegra20_spdif_pm_ops, + }, + .probe = tegra20_spdif_platform_probe, + .remove = __devexit_p(tegra20_spdif_platform_remove), +}; + +module_platform_driver(tegra20_spdif_driver); + +MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>"); +MODULE_DESCRIPTION("Tegra20 SPDIF ASoC driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:" DRV_NAME); diff --git a/sound/soc/tegra/tegra20_spdif.h b/sound/soc/tegra/tegra20_spdif.h new file mode 100644 index 000000000000..ed756527efea --- /dev/null +++ b/sound/soc/tegra/tegra20_spdif.h @@ -0,0 +1,471 @@ +/* + * tegra20_spdif.h - Definitions for Tegra20 SPDIF driver + * + * Author: Stephen Warren <swarren@nvidia.com> + * Copyright (C) 2011 - NVIDIA, Inc. + * + * Based on code copyright/by: + * Copyright (c) 2008-2009, NVIDIA Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#ifndef __TEGRA20_SPDIF_H__ +#define __TEGRA20_SPDIF_H__ + +#include "tegra_pcm.h" + +/* Offsets from TEGRA20_SPDIF_BASE */ + +#define TEGRA20_SPDIF_CTRL 0x0 +#define TEGRA20_SPDIF_STATUS 0x4 +#define TEGRA20_SPDIF_STROBE_CTRL 0x8 +#define TEGRA20_SPDIF_DATA_FIFO_CSR 0x0C +#define TEGRA20_SPDIF_DATA_OUT 0x40 +#define TEGRA20_SPDIF_DATA_IN 0x80 +#define TEGRA20_SPDIF_CH_STA_RX_A 0x100 +#define TEGRA20_SPDIF_CH_STA_RX_B 0x104 +#define TEGRA20_SPDIF_CH_STA_RX_C 0x108 +#define TEGRA20_SPDIF_CH_STA_RX_D 0x10C +#define TEGRA20_SPDIF_CH_STA_RX_E 0x110 +#define TEGRA20_SPDIF_CH_STA_RX_F 0x114 +#define TEGRA20_SPDIF_CH_STA_TX_A 0x140 +#define TEGRA20_SPDIF_CH_STA_TX_B 0x144 +#define TEGRA20_SPDIF_CH_STA_TX_C 0x148 +#define TEGRA20_SPDIF_CH_STA_TX_D 0x14C +#define TEGRA20_SPDIF_CH_STA_TX_E 0x150 +#define TEGRA20_SPDIF_CH_STA_TX_F 0x154 +#define TEGRA20_SPDIF_USR_STA_RX_A 0x180 +#define TEGRA20_SPDIF_USR_DAT_TX_A 0x1C0 + +/* Fields in TEGRA20_SPDIF_CTRL */ + +/* Start capturing from 0=right, 1=left channel */ +#define TEGRA20_SPDIF_CTRL_CAP_LC (1 << 30) + +/* SPDIF receiver(RX) enable */ +#define TEGRA20_SPDIF_CTRL_RX_EN (1 << 29) + +/* SPDIF Transmitter(TX) enable */ +#define TEGRA20_SPDIF_CTRL_TX_EN (1 << 28) + +/* Transmit Channel status */ +#define TEGRA20_SPDIF_CTRL_TC_EN (1 << 27) + +/* Transmit user Data */ +#define TEGRA20_SPDIF_CTRL_TU_EN (1 << 26) + +/* Interrupt on transmit error */ +#define TEGRA20_SPDIF_CTRL_IE_TXE (1 << 25) + +/* Interrupt on receive error */ +#define TEGRA20_SPDIF_CTRL_IE_RXE (1 << 24) + +/* Interrupt on invalid preamble */ +#define TEGRA20_SPDIF_CTRL_IE_P (1 << 23) + +/* Interrupt on "B" preamble */ +#define TEGRA20_SPDIF_CTRL_IE_B (1 << 22) + +/* Interrupt when block of channel status received */ +#define TEGRA20_SPDIF_CTRL_IE_C (1 << 21) + +/* Interrupt when a valid information unit (IU) is received */ +#define TEGRA20_SPDIF_CTRL_IE_U (1 << 20) + +/* Interrupt when RX user FIFO attention level is reached */ +#define TEGRA20_SPDIF_CTRL_QE_RU (1 << 19) + +/* Interrupt when TX user FIFO attention level is reached */ +#define TEGRA20_SPDIF_CTRL_QE_TU (1 << 18) + +/* Interrupt when RX data FIFO attention level is reached */ +#define TEGRA20_SPDIF_CTRL_QE_RX (1 << 17) + +/* Interrupt when TX data FIFO attention level is reached */ +#define TEGRA20_SPDIF_CTRL_QE_TX (1 << 16) + +/* Loopback test mode enable */ +#define TEGRA20_SPDIF_CTRL_LBK_EN (1 << 15) + +/* + * Pack data mode: + * 0 = Single data (16 bit needs to be padded to match the + * interface data bit size). + * 1 = Packeted left/right channel data into a single word. + */ +#define TEGRA20_SPDIF_CTRL_PACK (1 << 14) + +/* + * 00 = 16bit data + * 01 = 20bit data + * 10 = 24bit data + * 11 = raw data + */ +#define TEGRA20_SPDIF_BIT_MODE_16BIT 0 +#define TEGRA20_SPDIF_BIT_MODE_20BIT 1 +#define TEGRA20_SPDIF_BIT_MODE_24BIT 2 +#define TEGRA20_SPDIF_BIT_MODE_RAW 3 + +#define TEGRA20_SPDIF_CTRL_BIT_MODE_SHIFT 12 +#define TEGRA20_SPDIF_CTRL_BIT_MODE_MASK (3 << TEGRA20_SPDIF_CTRL_BIT_MODE_SHIFT) +#define TEGRA20_SPDIF_CTRL_BIT_MODE_16BIT (TEGRA20_SPDIF_BIT_MODE_16BIT << TEGRA20_SPDIF_CTRL_BIT_MODE_SHIFT) +#define TEGRA20_SPDIF_CTRL_BIT_MODE_20BIT (TEGRA20_SPDIF_BIT_MODE_20BIT << TEGRA20_SPDIF_CTRL_BIT_MODE_SHIFT) +#define TEGRA20_SPDIF_CTRL_BIT_MODE_24BIT (TEGRA20_SPDIF_BIT_MODE_24BIT << TEGRA20_SPDIF_CTRL_BIT_MODE_SHIFT) +#define TEGRA20_SPDIF_CTRL_BIT_MODE_RAW (TEGRA20_SPDIF_BIT_MODE_RAW << TEGRA20_SPDIF_CTRL_BIT_MODE_SHIFT) + +/* Fields in TEGRA20_SPDIF_STATUS */ + +/* + * Note: IS_P, IS_B, IS_C, and IS_U are sticky bits. Software must + * write a 1 to the corresponding bit location to clear the status. + */ + +/* + * Receiver(RX) shifter is busy receiving data. + * This bit is asserted when the receiver first locked onto the + * preamble of the data stream after RX_EN is asserted. This bit is + * deasserted when either, + * (a) the end of a frame is reached after RX_EN is deeasserted, or + * (b) the SPDIF data stream becomes inactive. + */ +#define TEGRA20_SPDIF_STATUS_RX_BSY (1 << 29) + +/* + * Transmitter(TX) shifter is busy transmitting data. + * This bit is asserted when TX_EN is asserted. + * This bit is deasserted when the end of a frame is reached after + * TX_EN is deasserted. + */ +#define TEGRA20_SPDIF_STATUS_TX_BSY (1 << 28) + +/* + * TX is busy shifting out channel status. + * This bit is asserted when both TX_EN and TC_EN are asserted and + * data from CH_STA_TX_A register is loaded into the internal shifter. + * This bit is deasserted when either, + * (a) the end of a frame is reached after TX_EN is deasserted, or + * (b) CH_STA_TX_F register is loaded into the internal shifter. + */ +#define TEGRA20_SPDIF_STATUS_TC_BSY (1 << 27) + +/* + * TX User data FIFO busy. + * This bit is asserted when TX_EN and TXU_EN are asserted and + * there's data in the TX user FIFO. This bit is deassert when either, + * (a) the end of a frame is reached after TX_EN is deasserted, or + * (b) there's no data left in the TX user FIFO. + */ +#define TEGRA20_SPDIF_STATUS_TU_BSY (1 << 26) + +/* TX FIFO Underrun error status */ +#define TEGRA20_SPDIF_STATUS_TX_ERR (1 << 25) + +/* RX FIFO Overrun error status */ +#define TEGRA20_SPDIF_STATUS_RX_ERR (1 << 24) + +/* Preamble status: 0=Preamble OK, 1=bad/missing preamble */ +#define TEGRA20_SPDIF_STATUS_IS_P (1 << 23) + +/* B-preamble detection status: 0=not detected, 1=B-preamble detected */ +#define TEGRA20_SPDIF_STATUS_IS_B (1 << 22) + +/* + * RX channel block data receive status: + * 0=entire block not recieved yet. + * 1=received entire block of channel status, + */ +#define TEGRA20_SPDIF_STATUS_IS_C (1 << 21) + +/* RX User Data Valid flag: 1=valid IU detected, 0 = no IU detected. */ +#define TEGRA20_SPDIF_STATUS_IS_U (1 << 20) + +/* + * RX User FIFO Status: + * 1=attention level reached, 0=attention level not reached. + */ +#define TEGRA20_SPDIF_STATUS_QS_RU (1 << 19) + +/* + * TX User FIFO Status: + * 1=attention level reached, 0=attention level not reached. + */ +#define TEGRA20_SPDIF_STATUS_QS_TU (1 << 18) + +/* + * RX Data FIFO Status: + * 1=attention level reached, 0=attention level not reached. + */ +#define TEGRA20_SPDIF_STATUS_QS_RX (1 << 17) + +/* + * TX Data FIFO Status: + * 1=attention level reached, 0=attention level not reached. + */ +#define TEGRA20_SPDIF_STATUS_QS_TX (1 << 16) + +/* Fields in TEGRA20_SPDIF_STROBE_CTRL */ + +/* + * Indicates the approximate number of detected SPDIFIN clocks within a + * bi-phase period. + */ +#define TEGRA20_SPDIF_STROBE_CTRL_PERIOD_SHIFT 16 +#define TEGRA20_SPDIF_STROBE_CTRL_PERIOD_MASK (0xff << TEGRA20_SPDIF_STROBE_CTRL_PERIOD_SHIFT) + +/* Data strobe mode: 0=Auto-locked 1=Manual locked */ +#define TEGRA20_SPDIF_STROBE_CTRL_STROBE (1 << 15) + +/* + * Manual data strobe time within the bi-phase clock period (in terms of + * the number of over-sampling clocks). + */ +#define TEGRA20_SPDIF_STROBE_CTRL_DATA_STROBES_SHIFT 8 +#define TEGRA20_SPDIF_STROBE_CTRL_DATA_STROBES_MASK (0x1f << TEGRA20_SPDIF_STROBE_CTRL_DATA_STROBES_SHIFT) + +/* + * Manual SPDIFIN bi-phase clock period (in terms of the number of + * over-sampling clocks). + */ +#define TEGRA20_SPDIF_STROBE_CTRL_CLOCK_PERIOD_SHIFT 0 +#define TEGRA20_SPDIF_STROBE_CTRL_CLOCK_PERIOD_MASK (0x3f << TEGRA20_SPDIF_STROBE_CTRL_CLOCK_PERIOD_SHIFT) + +/* Fields in SPDIF_DATA_FIFO_CSR */ + +/* Clear Receiver User FIFO (RX USR.FIFO) */ +#define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_CLR (1 << 31) + +#define TEGRA20_SPDIF_FIFO_ATN_LVL_U_ONE_SLOT 0 +#define TEGRA20_SPDIF_FIFO_ATN_LVL_U_TWO_SLOTS 1 +#define TEGRA20_SPDIF_FIFO_ATN_LVL_U_THREE_SLOTS 2 +#define TEGRA20_SPDIF_FIFO_ATN_LVL_U_FOUR_SLOTS 3 + +/* RU FIFO attention level */ +#define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT 29 +#define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_MASK \ + (0x3 << TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT) +#define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU1_WORD_FULL \ + (TEGRA20_SPDIF_FIFO_ATN_LVL_U_ONE_SLOT << TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT) +#define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU2_WORD_FULL \ + (TEGRA20_SPDIF_FIFO_ATN_LVL_U_TWO_SLOTS << TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT) +#define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU3_WORD_FULL \ + (TEGRA20_SPDIF_FIFO_ATN_LVL_U_THREE_SLOTS << TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT) +#define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU4_WORD_FULL \ + (TEGRA20_SPDIF_FIFO_ATN_LVL_U_FOUR_SLOTS << TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT) + +/* Number of RX USR.FIFO levels with valid data. */ +#define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_FULL_COUNT_SHIFT 24 +#define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_FULL_COUNT_MASK (0x1f << TEGRA20_SPDIF_DATA_FIFO_CSR_RU_FULL_COUNT_SHIFT) + +/* Clear Transmitter User FIFO (TX USR.FIFO) */ +#define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_CLR (1 << 23) + +/* TU FIFO attention level */ +#define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT 21 +#define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_MASK \ + (0x3 << TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT) +#define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU1_WORD_FULL \ + (TEGRA20_SPDIF_FIFO_ATN_LVL_U_ONE_SLOT << TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT) +#define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU2_WORD_FULL \ + (TEGRA20_SPDIF_FIFO_ATN_LVL_U_TWO_SLOTS << TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT) +#define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU3_WORD_FULL \ + (TEGRA20_SPDIF_FIFO_ATN_LVL_U_THREE_SLOTS << TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT) +#define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU4_WORD_FULL \ + (TEGRA20_SPDIF_FIFO_ATN_LVL_U_FOUR_SLOTS << TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT) + +/* Number of TX USR.FIFO levels that could be filled. */ +#define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_EMPTY_COUNT_SHIFT 16 +#define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_EMPTY_COUNT_MASK (0x1f << SPDIF_DATA_FIFO_CSR_TU_EMPTY_COUNT_SHIFT) + +/* Clear Receiver Data FIFO (RX DATA.FIFO) */ +#define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_CLR (1 << 15) + +#define TEGRA20_SPDIF_FIFO_ATN_LVL_D_ONE_SLOT 0 +#define TEGRA20_SPDIF_FIFO_ATN_LVL_D_FOUR_SLOTS 1 +#define TEGRA20_SPDIF_FIFO_ATN_LVL_D_EIGHT_SLOTS 2 +#define TEGRA20_SPDIF_FIFO_ATN_LVL_D_TWELVE_SLOTS 3 + +/* RU FIFO attention level */ +#define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT 13 +#define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_MASK \ + (0x3 << TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT) +#define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU1_WORD_FULL \ + (TEGRA20_SPDIF_FIFO_ATN_LVL_D_ONE_SLOT << TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT) +#define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU4_WORD_FULL \ + (TEGRA20_SPDIF_FIFO_ATN_LVL_D_FOUR_SLOTS << TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT) +#define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU8_WORD_FULL \ + (TEGRA20_SPDIF_FIFO_ATN_LVL_D_EIGHT_SLOTS << TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT) +#define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU12_WORD_FULL \ + (TEGRA20_SPDIF_FIFO_ATN_LVL_D_TWELVE_SLOTS << TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT) + +/* Number of RX DATA.FIFO levels with valid data. */ +#define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_FULL_COUNT_SHIFT 8 +#define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_FULL_COUNT_MASK (0x1f << TEGRA20_SPDIF_DATA_FIFO_CSR_RX_FULL_COUNT_SHIFT) + +/* Clear Transmitter Data FIFO (TX DATA.FIFO) */ +#define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_CLR (1 << 7) + +/* TU FIFO attention level */ +#define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT 5 +#define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_MASK \ + (0x3 << TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT) +#define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU1_WORD_FULL \ + (TEGRA20_SPDIF_FIFO_ATN_LVL_D_ONE_SLOT << TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT) +#define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU4_WORD_FULL \ + (TEGRA20_SPDIF_FIFO_ATN_LVL_D_FOUR_SLOTS << TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT) +#define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU8_WORD_FULL \ + (TEGRA20_SPDIF_FIFO_ATN_LVL_D_EIGHT_SLOTS << TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT) +#define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU12_WORD_FULL \ + (TEGRA20_SPDIF_FIFO_ATN_LVL_D_TWELVE_SLOTS << TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT) + +/* Number of TX DATA.FIFO levels that could be filled. */ +#define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_EMPTY_COUNT_SHIFT 0 +#define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_EMPTY_COUNT_MASK (0x1f << SPDIF_DATA_FIFO_CSR_TX_EMPTY_COUNT_SHIFT) + +/* Fields in TEGRA20_SPDIF_DATA_OUT */ + +/* + * This register has 5 different formats: + * 16-bit (BIT_MODE=00, PACK=0) + * 20-bit (BIT_MODE=01, PACK=0) + * 24-bit (BIT_MODE=10, PACK=0) + * raw (BIT_MODE=11, PACK=0) + * 16-bit packed (BIT_MODE=00, PACK=1) + */ + +#define TEGRA20_SPDIF_DATA_OUT_DATA_16_SHIFT 0 +#define TEGRA20_SPDIF_DATA_OUT_DATA_16_MASK (0xffff << TEGRA20_SPDIF_DATA_OUT_DATA_16_SHIFT) + +#define TEGRA20_SPDIF_DATA_OUT_DATA_20_SHIFT 0 +#define TEGRA20_SPDIF_DATA_OUT_DATA_20_MASK (0xfffff << TEGRA20_SPDIF_DATA_OUT_DATA_20_SHIFT) + +#define TEGRA20_SPDIF_DATA_OUT_DATA_24_SHIFT 0 +#define TEGRA20_SPDIF_DATA_OUT_DATA_24_MASK (0xffffff << TEGRA20_SPDIF_DATA_OUT_DATA_24_SHIFT) + +#define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_P (1 << 31) +#define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_C (1 << 30) +#define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_U (1 << 29) +#define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_V (1 << 28) + +#define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_DATA_SHIFT 8 +#define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_DATA_MASK (0xfffff << TEGRA20_SPDIF_DATA_OUT_DATA_RAW_DATA_SHIFT) + +#define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_AUX_SHIFT 4 +#define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_AUX_MASK (0xf << TEGRA20_SPDIF_DATA_OUT_DATA_RAW_AUX_SHIFT) + +#define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_PREAMBLE_SHIFT 0 +#define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_PREAMBLE_MASK (0xf << TEGRA20_SPDIF_DATA_OUT_DATA_RAW_PREAMBLE_SHIFT) + +#define TEGRA20_SPDIF_DATA_OUT_DATA_16_PACKED_RIGHT_SHIFT 16 +#define TEGRA20_SPDIF_DATA_OUT_DATA_16_PACKED_RIGHT_MASK (0xffff << TEGRA20_SPDIF_DATA_OUT_DATA_16_PACKED_RIGHT_SHIFT) + +#define TEGRA20_SPDIF_DATA_OUT_DATA_16_PACKED_LEFT_SHIFT 0 +#define TEGRA20_SPDIF_DATA_OUT_DATA_16_PACKED_LEFT_MASK (0xffff << TEGRA20_SPDIF_DATA_OUT_DATA_16_PACKED_LEFT_SHIFT) + +/* Fields in TEGRA20_SPDIF_DATA_IN */ + +/* + * This register has 5 different formats: + * 16-bit (BIT_MODE=00, PACK=0) + * 20-bit (BIT_MODE=01, PACK=0) + * 24-bit (BIT_MODE=10, PACK=0) + * raw (BIT_MODE=11, PACK=0) + * 16-bit packed (BIT_MODE=00, PACK=1) + * + * Bits 31:24 are common to all modes except 16-bit packed + */ + +#define TEGRA20_SPDIF_DATA_IN_DATA_P (1 << 31) +#define TEGRA20_SPDIF_DATA_IN_DATA_C (1 << 30) +#define TEGRA20_SPDIF_DATA_IN_DATA_U (1 << 29) +#define TEGRA20_SPDIF_DATA_IN_DATA_V (1 << 28) + +#define TEGRA20_SPDIF_DATA_IN_DATA_PREAMBLE_SHIFT 24 +#define TEGRA20_SPDIF_DATA_IN_DATA_PREAMBLE_MASK (0xf << TEGRA20_SPDIF_DATA_IN_DATA_PREAMBLE_SHIFT) + +#define TEGRA20_SPDIF_DATA_IN_DATA_16_SHIFT 0 +#define TEGRA20_SPDIF_DATA_IN_DATA_16_MASK (0xffff << TEGRA20_SPDIF_DATA_IN_DATA_16_SHIFT) + +#define TEGRA20_SPDIF_DATA_IN_DATA_20_SHIFT 0 +#define TEGRA20_SPDIF_DATA_IN_DATA_20_MASK (0xfffff << TEGRA20_SPDIF_DATA_IN_DATA_20_SHIFT) + +#define TEGRA20_SPDIF_DATA_IN_DATA_24_SHIFT 0 +#define TEGRA20_SPDIF_DATA_IN_DATA_24_MASK (0xffffff << TEGRA20_SPDIF_DATA_IN_DATA_24_SHIFT) + +#define TEGRA20_SPDIF_DATA_IN_DATA_RAW_DATA_SHIFT 8 +#define TEGRA20_SPDIF_DATA_IN_DATA_RAW_DATA_MASK (0xfffff << TEGRA20_SPDIF_DATA_IN_DATA_RAW_DATA_SHIFT) + +#define TEGRA20_SPDIF_DATA_IN_DATA_RAW_AUX_SHIFT 4 +#define TEGRA20_SPDIF_DATA_IN_DATA_RAW_AUX_MASK (0xf << TEGRA20_SPDIF_DATA_IN_DATA_RAW_AUX_SHIFT) + +#define TEGRA20_SPDIF_DATA_IN_DATA_RAW_PREAMBLE_SHIFT 0 +#define TEGRA20_SPDIF_DATA_IN_DATA_RAW_PREAMBLE_MASK (0xf << TEGRA20_SPDIF_DATA_IN_DATA_RAW_PREAMBLE_SHIFT) + +#define TEGRA20_SPDIF_DATA_IN_DATA_16_PACKED_RIGHT_SHIFT 16 +#define TEGRA20_SPDIF_DATA_IN_DATA_16_PACKED_RIGHT_MASK (0xffff << TEGRA20_SPDIF_DATA_IN_DATA_16_PACKED_RIGHT_SHIFT) + +#define TEGRA20_SPDIF_DATA_IN_DATA_16_PACKED_LEFT_SHIFT 0 +#define TEGRA20_SPDIF_DATA_IN_DATA_16_PACKED_LEFT_MASK (0xffff << TEGRA20_SPDIF_DATA_IN_DATA_16_PACKED_LEFT_SHIFT) + +/* Fields in TEGRA20_SPDIF_CH_STA_RX_A */ +/* Fields in TEGRA20_SPDIF_CH_STA_RX_B */ +/* Fields in TEGRA20_SPDIF_CH_STA_RX_C */ +/* Fields in TEGRA20_SPDIF_CH_STA_RX_D */ +/* Fields in TEGRA20_SPDIF_CH_STA_RX_E */ +/* Fields in TEGRA20_SPDIF_CH_STA_RX_F */ + +/* + * The 6-word receive channel data page buffer holds a block (192 frames) of + * channel status information. The order of receive is from LSB to MSB + * bit, and from CH_STA_RX_A to CH_STA_RX_F then back to CH_STA_RX_A. + */ + +/* Fields in TEGRA20_SPDIF_CH_STA_TX_A */ +/* Fields in TEGRA20_SPDIF_CH_STA_TX_B */ +/* Fields in TEGRA20_SPDIF_CH_STA_TX_C */ +/* Fields in TEGRA20_SPDIF_CH_STA_TX_D */ +/* Fields in TEGRA20_SPDIF_CH_STA_TX_E */ +/* Fields in TEGRA20_SPDIF_CH_STA_TX_F */ + +/* + * The 6-word transmit channel data page buffer holds a block (192 frames) of + * channel status information. The order of transmission is from LSB to MSB + * bit, and from CH_STA_TX_A to CH_STA_TX_F then back to CH_STA_TX_A. + */ + +/* Fields in TEGRA20_SPDIF_USR_STA_RX_A */ + +/* + * This 4-word deep FIFO receives user FIFO field information. The order of + * receive is from LSB to MSB bit. + */ + +/* Fields in TEGRA20_SPDIF_USR_DAT_TX_A */ + +/* + * This 4-word deep FIFO transmits user FIFO field information. The order of + * transmission is from LSB to MSB bit. + */ + +struct tegra20_spdif { + struct clk *clk_spdif_out; + struct tegra_pcm_dma_params capture_dma_data; + struct tegra_pcm_dma_params playback_dma_data; + struct regmap *regmap; + u32 reg_ctrl; +}; + +#endif diff --git a/sound/soc/tegra/tegra30_ahub.c b/sound/soc/tegra/tegra30_ahub.c new file mode 100644 index 000000000000..57cd419f743e --- /dev/null +++ b/sound/soc/tegra/tegra30_ahub.c @@ -0,0 +1,631 @@ +/* + * tegra30_ahub.c - Tegra30 AHUB driver + * + * Copyright (c) 2011,2012, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/clk.h> +#include <linux/device.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/of_platform.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> +#include <linux/regmap.h> +#include <linux/slab.h> +#include <mach/clk.h> +#include <mach/dma.h> +#include <sound/soc.h> +#include "tegra30_ahub.h" + +#define DRV_NAME "tegra30-ahub" + +static struct tegra30_ahub *ahub; + +static inline void tegra30_apbif_write(u32 reg, u32 val) +{ + regmap_write(ahub->regmap_apbif, reg, val); +} + +static inline u32 tegra30_apbif_read(u32 reg) +{ + u32 val; + regmap_read(ahub->regmap_apbif, reg, &val); + return val; +} + +static inline void tegra30_audio_write(u32 reg, u32 val) +{ + regmap_write(ahub->regmap_ahub, reg, val); +} + +static int tegra30_ahub_runtime_suspend(struct device *dev) +{ + regcache_cache_only(ahub->regmap_apbif, true); + regcache_cache_only(ahub->regmap_ahub, true); + + clk_disable(ahub->clk_apbif); + clk_disable(ahub->clk_d_audio); + + return 0; +} + +/* + * clk_apbif isn't required for an I2S<->I2S configuration where no PCM data + * is read from or sent to memory. However, that's not something the rest of + * the driver supports right now, so we'll just treat the two clocks as one + * for now. + * + * These functions should not be a plain ref-count. Instead, each active stream + * contributes some requirement to the minimum clock rate, so starting or + * stopping streams should dynamically adjust the clock as required. However, + * this is not yet implemented. + */ +static int tegra30_ahub_runtime_resume(struct device *dev) +{ + int ret; + + ret = clk_enable(ahub->clk_d_audio); + if (ret) { + dev_err(dev, "clk_enable d_audio failed: %d\n", ret); + return ret; + } + ret = clk_enable(ahub->clk_apbif); + if (ret) { + dev_err(dev, "clk_enable apbif failed: %d\n", ret); + clk_disable(ahub->clk_d_audio); + return ret; + } + + regcache_cache_only(ahub->regmap_apbif, false); + regcache_cache_only(ahub->regmap_ahub, false); + + return 0; +} + +int tegra30_ahub_allocate_rx_fifo(enum tegra30_ahub_rxcif *rxcif, + unsigned long *fiforeg, + unsigned long *reqsel) +{ + int channel; + u32 reg, val; + + channel = find_first_zero_bit(ahub->rx_usage, + TEGRA30_AHUB_CHANNEL_CTRL_COUNT); + if (channel >= TEGRA30_AHUB_CHANNEL_CTRL_COUNT) + return -EBUSY; + + __set_bit(channel, ahub->rx_usage); + + *rxcif = TEGRA30_AHUB_RXCIF_APBIF_RX0 + channel; + *fiforeg = ahub->apbif_addr + TEGRA30_AHUB_CHANNEL_RXFIFO + + (channel * TEGRA30_AHUB_CHANNEL_RXFIFO_STRIDE); + *reqsel = ahub->dma_sel + channel; + + reg = TEGRA30_AHUB_CHANNEL_CTRL + + (channel * TEGRA30_AHUB_CHANNEL_CTRL_STRIDE); + val = tegra30_apbif_read(reg); + val &= ~(TEGRA30_AHUB_CHANNEL_CTRL_RX_THRESHOLD_MASK | + TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_MASK); + val |= (7 << TEGRA30_AHUB_CHANNEL_CTRL_RX_THRESHOLD_SHIFT) | + TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_EN | + TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_16; + tegra30_apbif_write(reg, val); + + reg = TEGRA30_AHUB_CIF_RX_CTRL + + (channel * TEGRA30_AHUB_CIF_RX_CTRL_STRIDE); + val = (0 << TEGRA30_AUDIOCIF_CTRL_FIFO_THRESHOLD_SHIFT) | + (1 << TEGRA30_AUDIOCIF_CTRL_AUDIO_CHANNELS_SHIFT) | + (1 << TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_SHIFT) | + TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_16 | + TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_16 | + TEGRA30_AUDIOCIF_CTRL_DIRECTION_RX; + tegra30_apbif_write(reg, val); + + return 0; +} +EXPORT_SYMBOL_GPL(tegra30_ahub_allocate_rx_fifo); + +int tegra30_ahub_enable_rx_fifo(enum tegra30_ahub_rxcif rxcif) +{ + int channel = rxcif - TEGRA30_AHUB_RXCIF_APBIF_RX0; + int reg, val; + + reg = TEGRA30_AHUB_CHANNEL_CTRL + + (channel * TEGRA30_AHUB_CHANNEL_CTRL_STRIDE); + val = tegra30_apbif_read(reg); + val |= TEGRA30_AHUB_CHANNEL_CTRL_RX_EN; + tegra30_apbif_write(reg, val); + + return 0; +} +EXPORT_SYMBOL_GPL(tegra30_ahub_enable_rx_fifo); + +int tegra30_ahub_disable_rx_fifo(enum tegra30_ahub_rxcif rxcif) +{ + int channel = rxcif - TEGRA30_AHUB_RXCIF_APBIF_RX0; + int reg, val; + + reg = TEGRA30_AHUB_CHANNEL_CTRL + + (channel * TEGRA30_AHUB_CHANNEL_CTRL_STRIDE); + val = tegra30_apbif_read(reg); + val &= ~TEGRA30_AHUB_CHANNEL_CTRL_RX_EN; + tegra30_apbif_write(reg, val); + + return 0; +} +EXPORT_SYMBOL_GPL(tegra30_ahub_disable_rx_fifo); + +int tegra30_ahub_free_rx_fifo(enum tegra30_ahub_rxcif rxcif) +{ + int channel = rxcif - TEGRA30_AHUB_RXCIF_APBIF_RX0; + + __clear_bit(channel, ahub->rx_usage); + + return 0; +} +EXPORT_SYMBOL_GPL(tegra30_ahub_free_rx_fifo); + +int tegra30_ahub_allocate_tx_fifo(enum tegra30_ahub_txcif *txcif, + unsigned long *fiforeg, + unsigned long *reqsel) +{ + int channel; + u32 reg, val; + + channel = find_first_zero_bit(ahub->tx_usage, + TEGRA30_AHUB_CHANNEL_CTRL_COUNT); + if (channel >= TEGRA30_AHUB_CHANNEL_CTRL_COUNT) + return -EBUSY; + + __set_bit(channel, ahub->tx_usage); + + *txcif = TEGRA30_AHUB_TXCIF_APBIF_TX0 + channel; + *fiforeg = ahub->apbif_addr + TEGRA30_AHUB_CHANNEL_TXFIFO + + (channel * TEGRA30_AHUB_CHANNEL_TXFIFO_STRIDE); + *reqsel = ahub->dma_sel + channel; + + reg = TEGRA30_AHUB_CHANNEL_CTRL + + (channel * TEGRA30_AHUB_CHANNEL_CTRL_STRIDE); + val = tegra30_apbif_read(reg); + val &= ~(TEGRA30_AHUB_CHANNEL_CTRL_TX_THRESHOLD_MASK | + TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_MASK); + val |= (7 << TEGRA30_AHUB_CHANNEL_CTRL_TX_THRESHOLD_SHIFT) | + TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_EN | + TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_16; + tegra30_apbif_write(reg, val); + + reg = TEGRA30_AHUB_CIF_TX_CTRL + + (channel * TEGRA30_AHUB_CIF_TX_CTRL_STRIDE); + val = (0 << TEGRA30_AUDIOCIF_CTRL_FIFO_THRESHOLD_SHIFT) | + (1 << TEGRA30_AUDIOCIF_CTRL_AUDIO_CHANNELS_SHIFT) | + (1 << TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_SHIFT) | + TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_16 | + TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_16 | + TEGRA30_AUDIOCIF_CTRL_DIRECTION_TX; + tegra30_apbif_write(reg, val); + + return 0; +} +EXPORT_SYMBOL_GPL(tegra30_ahub_allocate_tx_fifo); + +int tegra30_ahub_enable_tx_fifo(enum tegra30_ahub_txcif txcif) +{ + int channel = txcif - TEGRA30_AHUB_TXCIF_APBIF_TX0; + int reg, val; + + reg = TEGRA30_AHUB_CHANNEL_CTRL + + (channel * TEGRA30_AHUB_CHANNEL_CTRL_STRIDE); + val = tegra30_apbif_read(reg); + val |= TEGRA30_AHUB_CHANNEL_CTRL_TX_EN; + tegra30_apbif_write(reg, val); + + return 0; +} +EXPORT_SYMBOL_GPL(tegra30_ahub_enable_tx_fifo); + +int tegra30_ahub_disable_tx_fifo(enum tegra30_ahub_txcif txcif) +{ + int channel = txcif - TEGRA30_AHUB_TXCIF_APBIF_TX0; + int reg, val; + + reg = TEGRA30_AHUB_CHANNEL_CTRL + + (channel * TEGRA30_AHUB_CHANNEL_CTRL_STRIDE); + val = tegra30_apbif_read(reg); + val &= ~TEGRA30_AHUB_CHANNEL_CTRL_TX_EN; + tegra30_apbif_write(reg, val); + + return 0; +} +EXPORT_SYMBOL_GPL(tegra30_ahub_disable_tx_fifo); + +int tegra30_ahub_free_tx_fifo(enum tegra30_ahub_txcif txcif) +{ + int channel = txcif - TEGRA30_AHUB_TXCIF_APBIF_TX0; + + __clear_bit(channel, ahub->tx_usage); + + return 0; +} +EXPORT_SYMBOL_GPL(tegra30_ahub_free_tx_fifo); + +int tegra30_ahub_set_rx_cif_source(enum tegra30_ahub_rxcif rxcif, + enum tegra30_ahub_txcif txcif) +{ + int channel = rxcif - TEGRA30_AHUB_RXCIF_APBIF_RX0; + int reg; + + reg = TEGRA30_AHUB_AUDIO_RX + + (channel * TEGRA30_AHUB_AUDIO_RX_STRIDE); + tegra30_audio_write(reg, 1 << txcif); + + return 0; +} +EXPORT_SYMBOL_GPL(tegra30_ahub_set_rx_cif_source); + +int tegra30_ahub_unset_rx_cif_source(enum tegra30_ahub_rxcif rxcif) +{ + int channel = rxcif - TEGRA30_AHUB_RXCIF_APBIF_RX0; + int reg; + + reg = TEGRA30_AHUB_AUDIO_RX + + (channel * TEGRA30_AHUB_AUDIO_RX_STRIDE); + tegra30_audio_write(reg, 0); + + return 0; +} +EXPORT_SYMBOL_GPL(tegra30_ahub_unset_rx_cif_source); + +static const char * const configlink_clocks[] __devinitconst = { + "i2s0", + "i2s1", + "i2s2", + "i2s3", + "i2s4", + "dam0", + "dam1", + "dam2", + "spdif_in", +}; + +struct of_dev_auxdata ahub_auxdata[] __devinitdata = { + OF_DEV_AUXDATA("nvidia,tegra30-i2s", 0x70080300, "tegra30-i2s.0", NULL), + OF_DEV_AUXDATA("nvidia,tegra30-i2s", 0x70080400, "tegra30-i2s.1", NULL), + OF_DEV_AUXDATA("nvidia,tegra30-i2s", 0x70080500, "tegra30-i2s.2", NULL), + OF_DEV_AUXDATA("nvidia,tegra30-i2s", 0x70080600, "tegra30-i2s.3", NULL), + OF_DEV_AUXDATA("nvidia,tegra30-i2s", 0x70080700, "tegra30-i2s.4", NULL), + {} +}; + +#define LAST_REG(name) \ + (TEGRA30_AHUB_##name + \ + (TEGRA30_AHUB_##name##_STRIDE * TEGRA30_AHUB_##name##_COUNT) - 4) + +#define REG_IN_ARRAY(reg, name) \ + ((reg >= TEGRA30_AHUB_##name) && \ + (reg <= LAST_REG(name) && \ + (!((reg - TEGRA30_AHUB_##name) % TEGRA30_AHUB_##name##_STRIDE)))) + +static bool tegra30_ahub_apbif_wr_rd_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TEGRA30_AHUB_CONFIG_LINK_CTRL: + case TEGRA30_AHUB_MISC_CTRL: + case TEGRA30_AHUB_APBDMA_LIVE_STATUS: + case TEGRA30_AHUB_I2S_LIVE_STATUS: + case TEGRA30_AHUB_SPDIF_LIVE_STATUS: + case TEGRA30_AHUB_I2S_INT_MASK: + case TEGRA30_AHUB_DAM_INT_MASK: + case TEGRA30_AHUB_SPDIF_INT_MASK: + case TEGRA30_AHUB_APBIF_INT_MASK: + case TEGRA30_AHUB_I2S_INT_STATUS: + case TEGRA30_AHUB_DAM_INT_STATUS: + case TEGRA30_AHUB_SPDIF_INT_STATUS: + case TEGRA30_AHUB_APBIF_INT_STATUS: + case TEGRA30_AHUB_I2S_INT_SOURCE: + case TEGRA30_AHUB_DAM_INT_SOURCE: + case TEGRA30_AHUB_SPDIF_INT_SOURCE: + case TEGRA30_AHUB_APBIF_INT_SOURCE: + case TEGRA30_AHUB_I2S_INT_SET: + case TEGRA30_AHUB_DAM_INT_SET: + case TEGRA30_AHUB_SPDIF_INT_SET: + case TEGRA30_AHUB_APBIF_INT_SET: + return true; + default: + break; + }; + + if (REG_IN_ARRAY(reg, CHANNEL_CTRL) || + REG_IN_ARRAY(reg, CHANNEL_CLEAR) || + REG_IN_ARRAY(reg, CHANNEL_STATUS) || + REG_IN_ARRAY(reg, CHANNEL_TXFIFO) || + REG_IN_ARRAY(reg, CHANNEL_RXFIFO) || + REG_IN_ARRAY(reg, CIF_TX_CTRL) || + REG_IN_ARRAY(reg, CIF_RX_CTRL) || + REG_IN_ARRAY(reg, DAM_LIVE_STATUS)) + return true; + + return false; +} + +static bool tegra30_ahub_apbif_volatile_reg(struct device *dev, + unsigned int reg) +{ + switch (reg) { + case TEGRA30_AHUB_CONFIG_LINK_CTRL: + case TEGRA30_AHUB_MISC_CTRL: + case TEGRA30_AHUB_APBDMA_LIVE_STATUS: + case TEGRA30_AHUB_I2S_LIVE_STATUS: + case TEGRA30_AHUB_SPDIF_LIVE_STATUS: + case TEGRA30_AHUB_I2S_INT_STATUS: + case TEGRA30_AHUB_DAM_INT_STATUS: + case TEGRA30_AHUB_SPDIF_INT_STATUS: + case TEGRA30_AHUB_APBIF_INT_STATUS: + case TEGRA30_AHUB_I2S_INT_SET: + case TEGRA30_AHUB_DAM_INT_SET: + case TEGRA30_AHUB_SPDIF_INT_SET: + case TEGRA30_AHUB_APBIF_INT_SET: + return true; + default: + break; + }; + + if (REG_IN_ARRAY(reg, CHANNEL_CLEAR) || + REG_IN_ARRAY(reg, CHANNEL_STATUS) || + REG_IN_ARRAY(reg, CHANNEL_TXFIFO) || + REG_IN_ARRAY(reg, CHANNEL_RXFIFO) || + REG_IN_ARRAY(reg, DAM_LIVE_STATUS)) + return true; + + return false; +} + +static bool tegra30_ahub_apbif_precious_reg(struct device *dev, + unsigned int reg) +{ + if (REG_IN_ARRAY(reg, CHANNEL_TXFIFO) || + REG_IN_ARRAY(reg, CHANNEL_RXFIFO)) + return true; + + return false; +} + +static const struct regmap_config tegra30_ahub_apbif_regmap_config = { + .name = "apbif", + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, + .max_register = TEGRA30_AHUB_APBIF_INT_SET, + .writeable_reg = tegra30_ahub_apbif_wr_rd_reg, + .readable_reg = tegra30_ahub_apbif_wr_rd_reg, + .volatile_reg = tegra30_ahub_apbif_volatile_reg, + .precious_reg = tegra30_ahub_apbif_precious_reg, + .cache_type = REGCACHE_RBTREE, +}; + +static bool tegra30_ahub_ahub_wr_rd_reg(struct device *dev, unsigned int reg) +{ + if (REG_IN_ARRAY(reg, AUDIO_RX)) + return true; + + return false; +} + +static const struct regmap_config tegra30_ahub_ahub_regmap_config = { + .name = "ahub", + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, + .max_register = LAST_REG(AUDIO_RX), + .writeable_reg = tegra30_ahub_ahub_wr_rd_reg, + .readable_reg = tegra30_ahub_ahub_wr_rd_reg, + .cache_type = REGCACHE_RBTREE, +}; + +static int __devinit tegra30_ahub_probe(struct platform_device *pdev) +{ + struct clk *clk; + int i; + struct resource *res0, *res1, *region; + u32 of_dma[2]; + void __iomem *regs_apbif, *regs_ahub; + int ret = 0; + + if (ahub) + return -ENODEV; + + /* + * The AHUB hosts a register bus: the "configlink". For this to + * operate correctly, all devices on this bus must be out of reset. + * Ensure that here. + */ + for (i = 0; i < ARRAY_SIZE(configlink_clocks); i++) { + clk = clk_get_sys(NULL, configlink_clocks[i]); + if (IS_ERR(clk)) { + dev_err(&pdev->dev, "Can't get clock %s\n", + configlink_clocks[i]); + ret = PTR_ERR(clk); + goto err; + } + tegra_periph_reset_deassert(clk); + clk_put(clk); + } + + ahub = devm_kzalloc(&pdev->dev, sizeof(struct tegra30_ahub), + GFP_KERNEL); + if (!ahub) { + dev_err(&pdev->dev, "Can't allocate tegra30_ahub\n"); + ret = -ENOMEM; + goto err; + } + dev_set_drvdata(&pdev->dev, ahub); + + ahub->dev = &pdev->dev; + + ahub->clk_d_audio = clk_get(&pdev->dev, "d_audio"); + if (IS_ERR(ahub->clk_d_audio)) { + dev_err(&pdev->dev, "Can't retrieve ahub d_audio clock\n"); + ret = PTR_ERR(ahub->clk_d_audio); + goto err; + } + + ahub->clk_apbif = clk_get(&pdev->dev, "apbif"); + if (IS_ERR(ahub->clk_apbif)) { + dev_err(&pdev->dev, "Can't retrieve ahub apbif clock\n"); + ret = PTR_ERR(ahub->clk_apbif); + goto err_clk_put_d_audio; + } + + if (of_property_read_u32_array(pdev->dev.of_node, + "nvidia,dma-request-selector", + of_dma, 2) < 0) { + dev_err(&pdev->dev, + "Missing property nvidia,dma-request-selector\n"); + ret = -ENODEV; + goto err_clk_put_d_audio; + } + ahub->dma_sel = of_dma[1]; + + res0 = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res0) { + dev_err(&pdev->dev, "No apbif memory resource\n"); + ret = -ENODEV; + goto err_clk_put_apbif; + } + + region = devm_request_mem_region(&pdev->dev, res0->start, + resource_size(res0), DRV_NAME); + if (!region) { + dev_err(&pdev->dev, "request region apbif failed\n"); + ret = -EBUSY; + goto err_clk_put_apbif; + } + ahub->apbif_addr = res0->start; + + regs_apbif = devm_ioremap(&pdev->dev, res0->start, + resource_size(res0)); + if (!regs_apbif) { + dev_err(&pdev->dev, "ioremap apbif failed\n"); + ret = -ENOMEM; + goto err_clk_put_apbif; + } + + ahub->regmap_apbif = devm_regmap_init_mmio(&pdev->dev, regs_apbif, + &tegra30_ahub_apbif_regmap_config); + if (IS_ERR(ahub->regmap_apbif)) { + dev_err(&pdev->dev, "apbif regmap init failed\n"); + ret = PTR_ERR(ahub->regmap_apbif); + goto err_clk_put_apbif; + } + regcache_cache_only(ahub->regmap_apbif, true); + + res1 = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (!res1) { + dev_err(&pdev->dev, "No ahub memory resource\n"); + ret = -ENODEV; + goto err_clk_put_apbif; + } + + region = devm_request_mem_region(&pdev->dev, res1->start, + resource_size(res1), DRV_NAME); + if (!region) { + dev_err(&pdev->dev, "request region ahub failed\n"); + ret = -EBUSY; + goto err_clk_put_apbif; + } + + regs_ahub = devm_ioremap(&pdev->dev, res1->start, + resource_size(res1)); + if (!regs_ahub) { + dev_err(&pdev->dev, "ioremap ahub failed\n"); + ret = -ENOMEM; + goto err_clk_put_apbif; + } + + ahub->regmap_ahub = devm_regmap_init_mmio(&pdev->dev, regs_ahub, + &tegra30_ahub_ahub_regmap_config); + if (IS_ERR(ahub->regmap_ahub)) { + dev_err(&pdev->dev, "ahub regmap init failed\n"); + ret = PTR_ERR(ahub->regmap_ahub); + goto err_clk_put_apbif; + } + regcache_cache_only(ahub->regmap_ahub, true); + + pm_runtime_enable(&pdev->dev); + if (!pm_runtime_enabled(&pdev->dev)) { + ret = tegra30_ahub_runtime_resume(&pdev->dev); + if (ret) + goto err_pm_disable; + } + + of_platform_populate(pdev->dev.of_node, NULL, ahub_auxdata, + &pdev->dev); + + return 0; + +err_pm_disable: + pm_runtime_disable(&pdev->dev); +err_clk_put_apbif: + clk_put(ahub->clk_apbif); +err_clk_put_d_audio: + clk_put(ahub->clk_d_audio); + ahub = 0; +err: + return ret; +} + +static int __devexit tegra30_ahub_remove(struct platform_device *pdev) +{ + if (!ahub) + return -ENODEV; + + pm_runtime_disable(&pdev->dev); + if (!pm_runtime_status_suspended(&pdev->dev)) + tegra30_ahub_runtime_suspend(&pdev->dev); + + clk_put(ahub->clk_apbif); + clk_put(ahub->clk_d_audio); + + ahub = 0; + + return 0; +} + +static const struct of_device_id tegra30_ahub_of_match[] __devinitconst = { + { .compatible = "nvidia,tegra30-ahub", }, + {}, +}; + +static const struct dev_pm_ops tegra30_ahub_pm_ops __devinitconst = { + SET_RUNTIME_PM_OPS(tegra30_ahub_runtime_suspend, + tegra30_ahub_runtime_resume, NULL) +}; + +static struct platform_driver tegra30_ahub_driver = { + .probe = tegra30_ahub_probe, + .remove = __devexit_p(tegra30_ahub_remove), + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + .of_match_table = tegra30_ahub_of_match, + .pm = &tegra30_ahub_pm_ops, + }, +}; +module_platform_driver(tegra30_ahub_driver); + +MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>"); +MODULE_DESCRIPTION("Tegra30 AHUB driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:" DRV_NAME); diff --git a/sound/soc/tegra/tegra30_ahub.h b/sound/soc/tegra/tegra30_ahub.h new file mode 100644 index 000000000000..e690e2eecc92 --- /dev/null +++ b/sound/soc/tegra/tegra30_ahub.h @@ -0,0 +1,483 @@ +/* + * tegra30_ahub.h - Definitions for Tegra30 AHUB driver + * + * Copyright (c) 2011,2012, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef __TEGRA30_AHUB_H__ +#define __TEGRA30_AHUB_H__ + +/* Fields in *_CIF_RX/TX_CTRL; used by AHUB FIFOs, and all other audio modules */ + +#define TEGRA30_AUDIOCIF_CTRL_FIFO_THRESHOLD_SHIFT 28 +#define TEGRA30_AUDIOCIF_CTRL_FIFO_THRESHOLD_MASK_US 0xf +#define TEGRA30_AUDIOCIF_CTRL_FIFO_THRESHOLD_MASK (TEGRA30_AUDIOCIF_CTRL_FIFO_THRESHOLD_MASK_US << TEGRA30_AUDIOCIF_CTRL_FIFO_THRESHOLD_SHIFT) + +/* Channel count minus 1 */ +#define TEGRA30_AUDIOCIF_CTRL_AUDIO_CHANNELS_SHIFT 24 +#define TEGRA30_AUDIOCIF_CTRL_AUDIO_CHANNELS_MASK_US 7 +#define TEGRA30_AUDIOCIF_CTRL_AUDIO_CHANNELS_MASK (TEGRA30_AUDIOCIF_CTRL_AUDIO_CHANNELS_MASK_US << TEGRA30_AUDIOCIF_CTRL_AUDIO_CHANNELS_SHIFT) + +/* Channel count minus 1 */ +#define TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_SHIFT 16 +#define TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_MASK_US 7 +#define TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_MASK (TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_MASK_US << TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_SHIFT) + +#define TEGRA30_AUDIOCIF_BITS_4 0 +#define TEGRA30_AUDIOCIF_BITS_8 1 +#define TEGRA30_AUDIOCIF_BITS_12 2 +#define TEGRA30_AUDIOCIF_BITS_16 3 +#define TEGRA30_AUDIOCIF_BITS_20 4 +#define TEGRA30_AUDIOCIF_BITS_24 5 +#define TEGRA30_AUDIOCIF_BITS_28 6 +#define TEGRA30_AUDIOCIF_BITS_32 7 + +#define TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_SHIFT 12 +#define TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_MASK (7 << TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_4 (TEGRA30_AUDIOCIF_BITS_4 << TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_8 (TEGRA30_AUDIOCIF_BITS_8 << TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_12 (TEGRA30_AUDIOCIF_BITS_12 << TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_16 (TEGRA30_AUDIOCIF_BITS_16 << TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_20 (TEGRA30_AUDIOCIF_BITS_20 << TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_24 (TEGRA30_AUDIOCIF_BITS_24 << TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_28 (TEGRA30_AUDIOCIF_BITS_28 << TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_32 (TEGRA30_AUDIOCIF_BITS_32 << TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_SHIFT) + +#define TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_SHIFT 8 +#define TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_MASK (7 << TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_4 (TEGRA30_AUDIOCIF_BITS_4 << TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_8 (TEGRA30_AUDIOCIF_BITS_8 << TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_12 (TEGRA30_AUDIOCIF_BITS_12 << TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_16 (TEGRA30_AUDIOCIF_BITS_16 << TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_20 (TEGRA30_AUDIOCIF_BITS_20 << TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_24 (TEGRA30_AUDIOCIF_BITS_24 << TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_28 (TEGRA30_AUDIOCIF_BITS_28 << TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_32 (TEGRA30_AUDIOCIF_BITS_32 << TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_SHIFT) + +#define TEGRA30_AUDIOCIF_EXPAND_ZERO 0 +#define TEGRA30_AUDIOCIF_EXPAND_ONE 1 +#define TEGRA30_AUDIOCIF_EXPAND_LFSR 2 + +#define TEGRA30_AUDIOCIF_CTRL_EXPAND_SHIFT 6 +#define TEGRA30_AUDIOCIF_CTRL_EXPAND_MASK (3 << TEGRA30_AUDIOCIF_CTRL_EXPAND_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_EXPAND_ZERO (TEGRA30_AUDIOCIF_EXPAND_ZERO << TEGRA30_AUDIOCIF_CTRL_EXPAND_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_EXPAND_ONE (TEGRA30_AUDIOCIF_EXPAND_ONE << TEGRA30_AUDIOCIF_CTRL_EXPAND_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_EXPAND_LFSR (TEGRA30_AUDIOCIF_EXPAND_LFSR << TEGRA30_AUDIOCIF_CTRL_EXPAND_SHIFT) + +#define TEGRA30_AUDIOCIF_STEREO_CONV_CH0 0 +#define TEGRA30_AUDIOCIF_STEREO_CONV_CH1 1 +#define TEGRA30_AUDIOCIF_STEREO_CONV_AVG 2 + +#define TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_SHIFT 4 +#define TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_MASK (3 << TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_CH0 (TEGRA30_AUDIOCIF_STEREO_CONV_CH0 << TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_CH1 (TEGRA30_AUDIOCIF_STEREO_CONV_CH1 << TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_AVG (TEGRA30_AUDIOCIF_STEREO_CONV_AVG << TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_SHIFT) + +#define TEGRA30_AUDIOCIF_CTRL_REPLICATE 3 + +#define TEGRA30_AUDIOCIF_DIRECTION_TX 0 +#define TEGRA30_AUDIOCIF_DIRECTION_RX 1 + +#define TEGRA30_AUDIOCIF_CTRL_DIRECTION_SHIFT 2 +#define TEGRA30_AUDIOCIF_CTRL_DIRECTION_MASK (1 << TEGRA30_AUDIOCIF_CTRL_DIRECTION_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_DIRECTION_TX (TEGRA30_AUDIOCIF_DIRECTION_TX << TEGRA30_AUDIOCIF_CTRL_DIRECTION_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_DIRECTION_RX (TEGRA30_AUDIOCIF_DIRECTION_RX << TEGRA30_AUDIOCIF_CTRL_DIRECTION_SHIFT) + +#define TEGRA30_AUDIOCIF_TRUNCATE_ROUND 0 +#define TEGRA30_AUDIOCIF_TRUNCATE_CHOP 1 + +#define TEGRA30_AUDIOCIF_CTRL_TRUNCATE_SHIFT 1 +#define TEGRA30_AUDIOCIF_CTRL_TRUNCATE_MASK (1 << TEGRA30_AUDIOCIF_CTRL_TRUNCATE_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_TRUNCATE_ROUND (TEGRA30_AUDIOCIF_TRUNCATE_ROUND << TEGRA30_AUDIOCIF_CTRL_TRUNCATE_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_TRUNCATE_CHOP (TEGRA30_AUDIOCIF_TRUNCATE_CHOP << TEGRA30_AUDIOCIF_CTRL_TRUNCATE_SHIFT) + +#define TEGRA30_AUDIOCIF_MONO_CONV_ZERO 0 +#define TEGRA30_AUDIOCIF_MONO_CONV_COPY 1 + +#define TEGRA30_AUDIOCIF_CTRL_MONO_CONV_SHIFT 0 +#define TEGRA30_AUDIOCIF_CTRL_MONO_CONV_MASK (1 << TEGRA30_AUDIOCIF_CTRL_MONO_CONV_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_MONO_CONV_ZERO (TEGRA30_AUDIOCIF_MONO_CONV_ZERO << TEGRA30_AUDIOCIF_CTRL_MONO_CONV_SHIFT) +#define TEGRA30_AUDIOCIF_CTRL_MONO_CONV_COPY (TEGRA30_AUDIOCIF_MONO_CONV_COPY << TEGRA30_AUDIOCIF_CTRL_MONO_CONV_SHIFT) + +/* Registers within TEGRA30_AUDIO_CLUSTER_BASE */ + +/* TEGRA30_AHUB_CHANNEL_CTRL */ + +#define TEGRA30_AHUB_CHANNEL_CTRL 0x0 +#define TEGRA30_AHUB_CHANNEL_CTRL_STRIDE 0x20 +#define TEGRA30_AHUB_CHANNEL_CTRL_COUNT 4 +#define TEGRA30_AHUB_CHANNEL_CTRL_TX_EN (1 << 31) +#define TEGRA30_AHUB_CHANNEL_CTRL_RX_EN (1 << 30) +#define TEGRA30_AHUB_CHANNEL_CTRL_LOOPBACK (1 << 29) + +#define TEGRA30_AHUB_CHANNEL_CTRL_TX_THRESHOLD_SHIFT 16 +#define TEGRA30_AHUB_CHANNEL_CTRL_TX_THRESHOLD_MASK_US 0xff +#define TEGRA30_AHUB_CHANNEL_CTRL_TX_THRESHOLD_MASK (TEGRA30_AHUB_CHANNEL_CTRL_TX_THRESHOLD_MASK_US << TEGRA30_AHUB_CHANNEL_CTRL_TX_THRESHOLD_SHIFT) + +#define TEGRA30_AHUB_CHANNEL_CTRL_RX_THRESHOLD_SHIFT 8 +#define TEGRA30_AHUB_CHANNEL_CTRL_RX_THRESHOLD_MASK_US 0xff +#define TEGRA30_AHUB_CHANNEL_CTRL_RX_THRESHOLD_MASK (TEGRA30_AHUB_CHANNEL_CTRL_RX_THRESHOLD_MASK_US << TEGRA30_AHUB_CHANNEL_CTRL_RX_THRESHOLD_SHIFT) + +#define TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_EN (1 << 6) + +#define TEGRA30_PACK_8_4 2 +#define TEGRA30_PACK_16 3 + +#define TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_SHIFT 4 +#define TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_MASK_US 3 +#define TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_MASK (TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_MASK_US << TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_SHIFT) +#define TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_8_4 (TEGRA30_PACK_8_4 << TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_SHIFT) +#define TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_16 (TEGRA30_PACK_16 << TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_SHIFT) + +#define TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_EN (1 << 2) + +#define TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_SHIFT 0 +#define TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_MASK_US 3 +#define TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_MASK (TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_MASK_US << TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_SHIFT) +#define TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_8_4 (TEGRA30_PACK_8_4 << TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_SHIFT) +#define TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_16 (TEGRA30_PACK_16 << TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_SHIFT) + +/* TEGRA30_AHUB_CHANNEL_CLEAR */ + +#define TEGRA30_AHUB_CHANNEL_CLEAR 0x4 +#define TEGRA30_AHUB_CHANNEL_CLEAR_STRIDE 0x20 +#define TEGRA30_AHUB_CHANNEL_CLEAR_COUNT 4 +#define TEGRA30_AHUB_CHANNEL_CLEAR_TX_SOFT_RESET (1 << 31) +#define TEGRA30_AHUB_CHANNEL_CLEAR_RX_SOFT_RESET (1 << 30) + +/* TEGRA30_AHUB_CHANNEL_STATUS */ + +#define TEGRA30_AHUB_CHANNEL_STATUS 0x8 +#define TEGRA30_AHUB_CHANNEL_STATUS_STRIDE 0x20 +#define TEGRA30_AHUB_CHANNEL_STATUS_COUNT 4 +#define TEGRA30_AHUB_CHANNEL_STATUS_TX_FREE_SHIFT 24 +#define TEGRA30_AHUB_CHANNEL_STATUS_TX_FREE_MASK_US 0xff +#define TEGRA30_AHUB_CHANNEL_STATUS_TX_FREE_MASK (TEGRA30_AHUB_CHANNEL_STATUS_TX_FREE_MASK_US << TEGRA30_AHUB_CHANNEL_STATUS_TX_FREE_SHIFT) +#define TEGRA30_AHUB_CHANNEL_STATUS_RX_FREE_SHIFT 16 +#define TEGRA30_AHUB_CHANNEL_STATUS_RX_FREE_MASK_US 0xff +#define TEGRA30_AHUB_CHANNEL_STATUS_RX_FREE_MASK (TEGRA30_AHUB_CHANNEL_STATUS_RX_FREE_MASK_US << TEGRA30_AHUB_CHANNEL_STATUS_RX_FREE_SHIFT) +#define TEGRA30_AHUB_CHANNEL_STATUS_TX_TRIG (1 << 1) +#define TEGRA30_AHUB_CHANNEL_STATUS_RX_TRIG (1 << 0) + +/* TEGRA30_AHUB_CHANNEL_TXFIFO */ + +#define TEGRA30_AHUB_CHANNEL_TXFIFO 0xc +#define TEGRA30_AHUB_CHANNEL_TXFIFO_STRIDE 0x20 +#define TEGRA30_AHUB_CHANNEL_TXFIFO_COUNT 4 + +/* TEGRA30_AHUB_CHANNEL_RXFIFO */ + +#define TEGRA30_AHUB_CHANNEL_RXFIFO 0x10 +#define TEGRA30_AHUB_CHANNEL_RXFIFO_STRIDE 0x20 +#define TEGRA30_AHUB_CHANNEL_RXFIFO_COUNT 4 + +/* TEGRA30_AHUB_CIF_TX_CTRL */ + +#define TEGRA30_AHUB_CIF_TX_CTRL 0x14 +#define TEGRA30_AHUB_CIF_TX_CTRL_STRIDE 0x20 +#define TEGRA30_AHUB_CIF_TX_CTRL_COUNT 4 +/* Uses field from TEGRA30_AUDIOCIF_CTRL_* */ + +/* TEGRA30_AHUB_CIF_RX_CTRL */ + +#define TEGRA30_AHUB_CIF_RX_CTRL 0x18 +#define TEGRA30_AHUB_CIF_RX_CTRL_STRIDE 0x20 +#define TEGRA30_AHUB_CIF_RX_CTRL_COUNT 4 +/* Uses field from TEGRA30_AUDIOCIF_CTRL_* */ + +/* TEGRA30_AHUB_CONFIG_LINK_CTRL */ + +#define TEGRA30_AHUB_CONFIG_LINK_CTRL 0x80 +#define TEGRA30_AHUB_CONFIG_LINK_CTRL_MASTER_FIFO_FULL_CNT_SHIFT 28 +#define TEGRA30_AHUB_CONFIG_LINK_CTRL_MASTER_FIFO_FULL_CNT_MASK_US 0xf +#define TEGRA30_AHUB_CONFIG_LINK_CTRL_MASTER_FIFO_FULL_CNT_MASK (TEGRA30_AHUB_CONFIG_LINK_CTRL_MASTER_FIFO_FULL_CNT_MASK_US << TEGRA30_AHUB_CONFIG_LINK_CTRL_MASTER_FIFO_FULL_CNT_SHIFT) +#define TEGRA30_AHUB_CONFIG_LINK_CTRL_TIMEOUT_CNT_SHIFT 16 +#define TEGRA30_AHUB_CONFIG_LINK_CTRL_TIMEOUT_CNT_MASK_US 0xfff +#define TEGRA30_AHUB_CONFIG_LINK_CTRL_TIMEOUT_CNT_MASK (TEGRA30_AHUB_CONFIG_LINK_CTRL_TIMEOUT_CNT_MASK_US << TEGRA30_AHUB_CONFIG_LINK_CTRL_TIMEOUT_CNT_SHIFT) +#define TEGRA30_AHUB_CONFIG_LINK_CTRL_IDLE_CNT_SHIFT 4 +#define TEGRA30_AHUB_CONFIG_LINK_CTRL_IDLE_CNT_MASK_US 0xfff +#define TEGRA30_AHUB_CONFIG_LINK_CTRL_IDLE_CNT_MASK (TEGRA30_AHUB_CONFIG_LINK_CTRL_IDLE_CNT_MASK_US << TEGRA30_AHUB_CONFIG_LINK_CTRL_IDLE_CNT_SHIFT) +#define TEGRA30_AHUB_CONFIG_LINK_CTRL_CG_EN (1 << 2) +#define TEGRA30_AHUB_CONFIG_LINK_CTRL_CLEAR_TIMEOUT_CNTR (1 << 1) +#define TEGRA30_AHUB_CONFIG_LINK_CTRL_SOFT_RESET (1 << 0) + +/* TEGRA30_AHUB_MISC_CTRL */ + +#define TEGRA30_AHUB_MISC_CTRL 0x84 +#define TEGRA30_AHUB_MISC_CTRL_AUDIO_ACTIVE (1 << 31) +#define TEGRA30_AHUB_MISC_CTRL_AUDIO_CG_EN (1 << 8) +#define TEGRA30_AHUB_MISC_CTRL_AUDIO_OBS_SEL_SHIFT 0 +#define TEGRA30_AHUB_MISC_CTRL_AUDIO_OBS_SEL_MASK (0x1f << TEGRA30_AHUB_MISC_CTRL_AUDIO_OBS_SEL_SHIFT) + +/* TEGRA30_AHUB_APBDMA_LIVE_STATUS */ + +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS 0x88 +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH3_RX_CIF_FIFO_FULL (1 << 31) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH3_TX_CIF_FIFO_FULL (1 << 30) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH2_RX_CIF_FIFO_FULL (1 << 29) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH2_TX_CIF_FIFO_FULL (1 << 28) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH1_RX_CIF_FIFO_FULL (1 << 27) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH1_TX_CIF_FIFO_FULL (1 << 26) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH0_RX_CIF_FIFO_FULL (1 << 25) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH0_TX_CIF_FIFO_FULL (1 << 24) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH3_RX_CIF_FIFO_EMPTY (1 << 23) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH3_TX_CIF_FIFO_EMPTY (1 << 22) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH2_RX_CIF_FIFO_EMPTY (1 << 21) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH2_TX_CIF_FIFO_EMPTY (1 << 20) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH1_RX_CIF_FIFO_EMPTY (1 << 19) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH1_TX_CIF_FIFO_EMPTY (1 << 18) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH0_RX_CIF_FIFO_EMPTY (1 << 17) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH0_TX_CIF_FIFO_EMPTY (1 << 16) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH3_RX_DMA_FIFO_FULL (1 << 15) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH3_TX_DMA_FIFO_FULL (1 << 14) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH2_RX_DMA_FIFO_FULL (1 << 13) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH2_TX_DMA_FIFO_FULL (1 << 12) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH1_RX_DMA_FIFO_FULL (1 << 11) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH1_TX_DMA_FIFO_FULL (1 << 10) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH0_RX_DMA_FIFO_FULL (1 << 9) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH0_TX_DMA_FIFO_FULL (1 << 8) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH3_RX_DMA_FIFO_EMPTY (1 << 7) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH3_TX_DMA_FIFO_EMPTY (1 << 6) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH2_RX_DMA_FIFO_EMPTY (1 << 5) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH2_TX_DMA_FIFO_EMPTY (1 << 4) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH1_RX_DMA_FIFO_EMPTY (1 << 3) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH1_TX_DMA_FIFO_EMPTY (1 << 2) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH0_RX_DMA_FIFO_EMPTY (1 << 1) +#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH0_TX_DMA_FIFO_EMPTY (1 << 0) + +/* TEGRA30_AHUB_I2S_LIVE_STATUS */ + +#define TEGRA30_AHUB_I2S_LIVE_STATUS 0x8c +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S4_RX_FIFO_FULL (1 << 29) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S4_TX_FIFO_FULL (1 << 28) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S3_RX_FIFO_FULL (1 << 27) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S3_TX_FIFO_FULL (1 << 26) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S2_RX_FIFO_FULL (1 << 25) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S2_TX_FIFO_FULL (1 << 24) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S1_RX_FIFO_FULL (1 << 23) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S1_TX_FIFO_FULL (1 << 22) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S0_RX_FIFO_FULL (1 << 21) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S0_TX_FIFO_FULL (1 << 20) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S4_RX_FIFO_ENABLED (1 << 19) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S4_TX_FIFO_ENABLED (1 << 18) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S3_RX_FIFO_ENABLED (1 << 17) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S3_TX_FIFO_ENABLED (1 << 16) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S2_RX_FIFO_ENABLED (1 << 15) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S2_TX_FIFO_ENABLED (1 << 14) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S1_RX_FIFO_ENABLED (1 << 13) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S1_TX_FIFO_ENABLED (1 << 12) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S0_RX_FIFO_ENABLED (1 << 11) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S0_TX_FIFO_ENABLED (1 << 10) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S4_RX_FIFO_EMPTY (1 << 9) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S4_TX_FIFO_EMPTY (1 << 8) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S3_RX_FIFO_EMPTY (1 << 7) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S3_TX_FIFO_EMPTY (1 << 6) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S2_RX_FIFO_EMPTY (1 << 5) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S2_TX_FIFO_EMPTY (1 << 4) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S1_RX_FIFO_EMPTY (1 << 3) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S1_TX_FIFO_EMPTY (1 << 2) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S0_RX_FIFO_EMPTY (1 << 1) +#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S0_TX_FIFO_EMPTY (1 << 0) + +/* TEGRA30_AHUB_DAM0_LIVE_STATUS */ + +#define TEGRA30_AHUB_DAM_LIVE_STATUS 0x90 +#define TEGRA30_AHUB_DAM_LIVE_STATUS_STRIDE 0x8 +#define TEGRA30_AHUB_DAM_LIVE_STATUS_COUNT 3 +#define TEGRA30_AHUB_DAM_LIVE_STATUS_TX_ENABLED (1 << 26) +#define TEGRA30_AHUB_DAM_LIVE_STATUS_RX1_ENABLED (1 << 25) +#define TEGRA30_AHUB_DAM_LIVE_STATUS_RX0_ENABLED (1 << 24) +#define TEGRA30_AHUB_DAM_LIVE_STATUS_TXFIFO_FULL (1 << 15) +#define TEGRA30_AHUB_DAM_LIVE_STATUS_RX1FIFO_FULL (1 << 9) +#define TEGRA30_AHUB_DAM_LIVE_STATUS_RX0FIFO_FULL (1 << 8) +#define TEGRA30_AHUB_DAM_LIVE_STATUS_TXFIFO_EMPTY (1 << 7) +#define TEGRA30_AHUB_DAM_LIVE_STATUS_RX1FIFO_EMPTY (1 << 1) +#define TEGRA30_AHUB_DAM_LIVE_STATUS_RX0FIFO_EMPTY (1 << 0) + +/* TEGRA30_AHUB_SPDIF_LIVE_STATUS */ + +#define TEGRA30_AHUB_SPDIF_LIVE_STATUS 0xa8 +#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_USER_TX_ENABLED (1 << 11) +#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_USER_RX_ENABLED (1 << 10) +#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_DATA_TX_ENABLED (1 << 9) +#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_DATA_RX_ENABLED (1 << 8) +#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_USER_TXFIFO_FULL (1 << 7) +#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_USER_RXFIFO_FULL (1 << 6) +#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_DATA_TXFIFO_FULL (1 << 5) +#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_DATA_RXFIFO_FULL (1 << 4) +#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_USER_TXFIFO_EMPTY (1 << 3) +#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_USER_RXFIFO_EMPTY (1 << 2) +#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_DATA_TXFIFO_EMPTY (1 << 1) +#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_DATA_RXFIFO_EMPTY (1 << 0) + +/* TEGRA30_AHUB_I2S_INT_MASK */ + +#define TEGRA30_AHUB_I2S_INT_MASK 0xb0 + +/* TEGRA30_AHUB_DAM_INT_MASK */ + +#define TEGRA30_AHUB_DAM_INT_MASK 0xb4 + +/* TEGRA30_AHUB_SPDIF_INT_MASK */ + +#define TEGRA30_AHUB_SPDIF_INT_MASK 0xbc + +/* TEGRA30_AHUB_APBIF_INT_MASK */ + +#define TEGRA30_AHUB_APBIF_INT_MASK 0xc0 + +/* TEGRA30_AHUB_I2S_INT_STATUS */ + +#define TEGRA30_AHUB_I2S_INT_STATUS 0xc8 + +/* TEGRA30_AHUB_DAM_INT_STATUS */ + +#define TEGRA30_AHUB_DAM_INT_STATUS 0xcc + +/* TEGRA30_AHUB_SPDIF_INT_STATUS */ + +#define TEGRA30_AHUB_SPDIF_INT_STATUS 0xd4 + +/* TEGRA30_AHUB_APBIF_INT_STATUS */ + +#define TEGRA30_AHUB_APBIF_INT_STATUS 0xd8 + +/* TEGRA30_AHUB_I2S_INT_SOURCE */ + +#define TEGRA30_AHUB_I2S_INT_SOURCE 0xe0 + +/* TEGRA30_AHUB_DAM_INT_SOURCE */ + +#define TEGRA30_AHUB_DAM_INT_SOURCE 0xe4 + +/* TEGRA30_AHUB_SPDIF_INT_SOURCE */ + +#define TEGRA30_AHUB_SPDIF_INT_SOURCE 0xec + +/* TEGRA30_AHUB_APBIF_INT_SOURCE */ + +#define TEGRA30_AHUB_APBIF_INT_SOURCE 0xf0 + +/* TEGRA30_AHUB_I2S_INT_SET */ + +#define TEGRA30_AHUB_I2S_INT_SET 0xf8 + +/* TEGRA30_AHUB_DAM_INT_SET */ + +#define TEGRA30_AHUB_DAM_INT_SET 0xfc + +/* TEGRA30_AHUB_SPDIF_INT_SET */ + +#define TEGRA30_AHUB_SPDIF_INT_SET 0x100 + +/* TEGRA30_AHUB_APBIF_INT_SET */ + +#define TEGRA30_AHUB_APBIF_INT_SET 0x104 + +/* Registers within TEGRA30_AHUB_BASE */ + +#define TEGRA30_AHUB_AUDIO_RX 0x0 +#define TEGRA30_AHUB_AUDIO_RX_STRIDE 0x4 +#define TEGRA30_AHUB_AUDIO_RX_COUNT 17 +/* This register repeats once for each entry in enum tegra30_ahub_rxcif */ +/* The fields in this register are 1 bit per entry in tegra30_ahub_txcif */ + +/* + * Terminology: + * AHUB: Audio Hub; a cross-bar switch between the audio devices: DMA FIFOs, + * I2S controllers, SPDIF controllers, and DAMs. + * XBAR: The core cross-bar component of the AHUB. + * CIF: Client Interface; the HW module connecting an audio device to the + * XBAR. + * DAM: Digital Audio Mixer: A HW module that mixes multiple audio streams, + * possibly including sample-rate conversion. + * + * Each TX CIF transmits data into the XBAR. Each RX CIF can receive audio + * transmitted by a particular TX CIF. + * + * This driver is currently very simplistic; many HW features are not + * exposed; DAMs are not supported, only 16-bit stereo audio is supported, + * etc. + */ + +enum tegra30_ahub_txcif { + TEGRA30_AHUB_TXCIF_APBIF_TX0, + TEGRA30_AHUB_TXCIF_APBIF_TX1, + TEGRA30_AHUB_TXCIF_APBIF_TX2, + TEGRA30_AHUB_TXCIF_APBIF_TX3, + TEGRA30_AHUB_TXCIF_I2S0_TX0, + TEGRA30_AHUB_TXCIF_I2S1_TX0, + TEGRA30_AHUB_TXCIF_I2S2_TX0, + TEGRA30_AHUB_TXCIF_I2S3_TX0, + TEGRA30_AHUB_TXCIF_I2S4_TX0, + TEGRA30_AHUB_TXCIF_DAM0_TX0, + TEGRA30_AHUB_TXCIF_DAM1_TX0, + TEGRA30_AHUB_TXCIF_DAM2_TX0, + TEGRA30_AHUB_TXCIF_SPDIF_TX0, + TEGRA30_AHUB_TXCIF_SPDIF_TX1, +}; + +enum tegra30_ahub_rxcif { + TEGRA30_AHUB_RXCIF_APBIF_RX0, + TEGRA30_AHUB_RXCIF_APBIF_RX1, + TEGRA30_AHUB_RXcIF_APBIF_RX2, + TEGRA30_AHUB_RXCIF_APBIF_RX3, + TEGRA30_AHUB_RXCIF_I2S0_RX0, + TEGRA30_AHUB_RXCIF_I2S1_RX0, + TEGRA30_AHUB_RXCIF_I2S2_RX0, + TEGRA30_AHUB_RXCIF_I2S3_RX0, + TEGRA30_AHUB_RXCIF_I2S4_RX0, + TEGRA30_AHUB_RXCIF_DAM0_RX0, + TEGRA30_AHUB_RXCIF_DAM0_RX1, + TEGRA30_AHUB_RXCIF_DAM1_RX0, + TEGRA30_AHUB_RXCIF_DAM2_RX1, + TEGRA30_AHUB_RXCIF_DAM3_RX0, + TEGRA30_AHUB_RXCIF_DAM3_RX1, + TEGRA30_AHUB_RXCIF_SPDIF_RX0, + TEGRA30_AHUB_RXCIF_SPDIF_RX1, +}; + +extern int tegra30_ahub_allocate_rx_fifo(enum tegra30_ahub_rxcif *rxcif, + unsigned long *fiforeg, + unsigned long *reqsel); +extern int tegra30_ahub_enable_rx_fifo(enum tegra30_ahub_rxcif rxcif); +extern int tegra30_ahub_disable_rx_fifo(enum tegra30_ahub_rxcif rxcif); +extern int tegra30_ahub_free_rx_fifo(enum tegra30_ahub_rxcif rxcif); + +extern int tegra30_ahub_allocate_tx_fifo(enum tegra30_ahub_txcif *txcif, + unsigned long *fiforeg, + unsigned long *reqsel); +extern int tegra30_ahub_enable_tx_fifo(enum tegra30_ahub_txcif txcif); +extern int tegra30_ahub_disable_tx_fifo(enum tegra30_ahub_txcif txcif); +extern int tegra30_ahub_free_tx_fifo(enum tegra30_ahub_txcif txcif); + +extern int tegra30_ahub_set_rx_cif_source(enum tegra30_ahub_rxcif rxcif, + enum tegra30_ahub_txcif txcif); +extern int tegra30_ahub_unset_rx_cif_source(enum tegra30_ahub_rxcif rxcif); + +struct tegra30_ahub { + struct device *dev; + struct clk *clk_d_audio; + struct clk *clk_apbif; + int dma_sel; + resource_size_t apbif_addr; + struct regmap *regmap_apbif; + struct regmap *regmap_ahub; + DECLARE_BITMAP(rx_usage, TEGRA30_AHUB_CHANNEL_CTRL_COUNT); + DECLARE_BITMAP(tx_usage, TEGRA30_AHUB_CHANNEL_CTRL_COUNT); +}; + +#endif diff --git a/sound/soc/tegra/tegra30_i2s.c b/sound/soc/tegra/tegra30_i2s.c new file mode 100644 index 000000000000..8596032985dc --- /dev/null +++ b/sound/soc/tegra/tegra30_i2s.c @@ -0,0 +1,536 @@ +/* + * tegra30_i2s.c - Tegra30 I2S driver + * + * Author: Stephen Warren <swarren@nvidia.com> + * Copyright (c) 2010-2012, NVIDIA CORPORATION. All rights reserved. + * + * Based on code copyright/by: + * + * Copyright (c) 2009-2010, NVIDIA Corporation. + * Scott Peterson <speterson@nvidia.com> + * + * Copyright (C) 2010 Google, Inc. + * Iliyan Malchev <malchev@google.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/clk.h> +#include <linux/device.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> +#include <linux/regmap.h> +#include <linux/slab.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> + +#include "tegra30_ahub.h" +#include "tegra30_i2s.h" + +#define DRV_NAME "tegra30-i2s" + +static inline void tegra30_i2s_write(struct tegra30_i2s *i2s, u32 reg, u32 val) +{ + regmap_write(i2s->regmap, reg, val); +} + +static inline u32 tegra30_i2s_read(struct tegra30_i2s *i2s, u32 reg) +{ + u32 val; + regmap_read(i2s->regmap, reg, &val); + return val; +} + +static int tegra30_i2s_runtime_suspend(struct device *dev) +{ + struct tegra30_i2s *i2s = dev_get_drvdata(dev); + + regcache_cache_only(i2s->regmap, true); + + clk_disable(i2s->clk_i2s); + + return 0; +} + +static int tegra30_i2s_runtime_resume(struct device *dev) +{ + struct tegra30_i2s *i2s = dev_get_drvdata(dev); + int ret; + + ret = clk_enable(i2s->clk_i2s); + if (ret) { + dev_err(dev, "clk_enable failed: %d\n", ret); + return ret; + } + + regcache_cache_only(i2s->regmap, false); + + return 0; +} + +int tegra30_i2s_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(dai); + int ret; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + ret = tegra30_ahub_allocate_tx_fifo(&i2s->playback_fifo_cif, + &i2s->playback_dma_data.addr, + &i2s->playback_dma_data.req_sel); + i2s->playback_dma_data.wrap = 4; + i2s->playback_dma_data.width = 32; + tegra30_ahub_set_rx_cif_source(i2s->playback_i2s_cif, + i2s->playback_fifo_cif); + } else { + ret = tegra30_ahub_allocate_rx_fifo(&i2s->capture_fifo_cif, + &i2s->capture_dma_data.addr, + &i2s->capture_dma_data.req_sel); + i2s->capture_dma_data.wrap = 4; + i2s->capture_dma_data.width = 32; + tegra30_ahub_set_rx_cif_source(i2s->capture_fifo_cif, + i2s->capture_i2s_cif); + } + + return ret; +} + +void tegra30_i2s_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(dai); + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + tegra30_ahub_unset_rx_cif_source(i2s->playback_i2s_cif); + tegra30_ahub_free_tx_fifo(i2s->playback_fifo_cif); + } else { + tegra30_ahub_unset_rx_cif_source(i2s->capture_fifo_cif); + tegra30_ahub_free_rx_fifo(i2s->capture_fifo_cif); + } +} + +static int tegra30_i2s_set_fmt(struct snd_soc_dai *dai, + unsigned int fmt) +{ + struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(dai); + + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + default: + return -EINVAL; + } + + i2s->reg_ctrl &= ~TEGRA30_I2S_CTRL_MASTER_ENABLE; + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBS_CFS: + i2s->reg_ctrl |= TEGRA30_I2S_CTRL_MASTER_ENABLE; + break; + case SND_SOC_DAIFMT_CBM_CFM: + break; + default: + return -EINVAL; + } + + i2s->reg_ctrl &= ~(TEGRA30_I2S_CTRL_FRAME_FORMAT_MASK | + TEGRA30_I2S_CTRL_LRCK_MASK); + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_DSP_A: + i2s->reg_ctrl |= TEGRA30_I2S_CTRL_FRAME_FORMAT_FSYNC; + i2s->reg_ctrl |= TEGRA30_I2S_CTRL_LRCK_L_LOW; + break; + case SND_SOC_DAIFMT_DSP_B: + i2s->reg_ctrl |= TEGRA30_I2S_CTRL_FRAME_FORMAT_FSYNC; + i2s->reg_ctrl |= TEGRA30_I2S_CTRL_LRCK_R_LOW; + break; + case SND_SOC_DAIFMT_I2S: + i2s->reg_ctrl |= TEGRA30_I2S_CTRL_FRAME_FORMAT_LRCK; + i2s->reg_ctrl |= TEGRA30_I2S_CTRL_LRCK_L_LOW; + break; + case SND_SOC_DAIFMT_RIGHT_J: + i2s->reg_ctrl |= TEGRA30_I2S_CTRL_FRAME_FORMAT_LRCK; + i2s->reg_ctrl |= TEGRA30_I2S_CTRL_LRCK_L_LOW; + break; + case SND_SOC_DAIFMT_LEFT_J: + i2s->reg_ctrl |= TEGRA30_I2S_CTRL_FRAME_FORMAT_LRCK; + i2s->reg_ctrl |= TEGRA30_I2S_CTRL_LRCK_L_LOW; + break; + default: + return -EINVAL; + } + + return 0; +} + +static int tegra30_i2s_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct device *dev = substream->pcm->card->dev; + struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(dai); + u32 val; + int ret, sample_size, srate, i2sclock, bitcnt; + + if (params_channels(params) != 2) + return -EINVAL; + + i2s->reg_ctrl &= ~TEGRA30_I2S_CTRL_BIT_SIZE_MASK; + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + i2s->reg_ctrl |= TEGRA30_I2S_CTRL_BIT_SIZE_16; + sample_size = 16; + break; + default: + return -EINVAL; + } + + srate = params_rate(params); + + /* Final "* 2" required by Tegra hardware */ + i2sclock = srate * params_channels(params) * sample_size * 2; + + bitcnt = (i2sclock / (2 * srate)) - 1; + if (bitcnt < 0 || bitcnt > TEGRA30_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US) + return -EINVAL; + + ret = clk_set_rate(i2s->clk_i2s, i2sclock); + if (ret) { + dev_err(dev, "Can't set I2S clock rate: %d\n", ret); + return ret; + } + + val = bitcnt << TEGRA30_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT; + + if (i2sclock % (2 * srate)) + val |= TEGRA30_I2S_TIMING_NON_SYM_ENABLE; + + tegra30_i2s_write(i2s, TEGRA30_I2S_TIMING, val); + + val = (0 << TEGRA30_AUDIOCIF_CTRL_FIFO_THRESHOLD_SHIFT) | + (1 << TEGRA30_AUDIOCIF_CTRL_AUDIO_CHANNELS_SHIFT) | + (1 << TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_SHIFT) | + TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_16 | + TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_16; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + val |= TEGRA30_AUDIOCIF_CTRL_DIRECTION_RX; + tegra30_i2s_write(i2s, TEGRA30_I2S_CIF_RX_CTRL, val); + } else { + val |= TEGRA30_AUDIOCIF_CTRL_DIRECTION_TX; + tegra30_i2s_write(i2s, TEGRA30_I2S_CIF_TX_CTRL, val); + } + + val = (1 << TEGRA30_I2S_OFFSET_RX_DATA_OFFSET_SHIFT) | + (1 << TEGRA30_I2S_OFFSET_TX_DATA_OFFSET_SHIFT); + tegra30_i2s_write(i2s, TEGRA30_I2S_OFFSET, val); + + return 0; +} + +static void tegra30_i2s_start_playback(struct tegra30_i2s *i2s) +{ + tegra30_ahub_enable_tx_fifo(i2s->playback_fifo_cif); + i2s->reg_ctrl |= TEGRA30_I2S_CTRL_XFER_EN_TX; + tegra30_i2s_write(i2s, TEGRA30_I2S_CTRL, i2s->reg_ctrl); +} + +static void tegra30_i2s_stop_playback(struct tegra30_i2s *i2s) +{ + tegra30_ahub_disable_tx_fifo(i2s->playback_fifo_cif); + i2s->reg_ctrl &= ~TEGRA30_I2S_CTRL_XFER_EN_TX; + tegra30_i2s_write(i2s, TEGRA30_I2S_CTRL, i2s->reg_ctrl); +} + +static void tegra30_i2s_start_capture(struct tegra30_i2s *i2s) +{ + tegra30_ahub_enable_rx_fifo(i2s->capture_fifo_cif); + i2s->reg_ctrl |= TEGRA30_I2S_CTRL_XFER_EN_RX; + tegra30_i2s_write(i2s, TEGRA30_I2S_CTRL, i2s->reg_ctrl); +} + +static void tegra30_i2s_stop_capture(struct tegra30_i2s *i2s) +{ + tegra30_ahub_disable_rx_fifo(i2s->capture_fifo_cif); + i2s->reg_ctrl &= ~TEGRA30_I2S_CTRL_XFER_EN_RX; + tegra30_i2s_write(i2s, TEGRA30_I2S_CTRL, i2s->reg_ctrl); +} + +static int tegra30_i2s_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai) +{ + struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(dai); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + case SNDRV_PCM_TRIGGER_RESUME: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + tegra30_i2s_start_playback(i2s); + else + tegra30_i2s_start_capture(i2s); + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + case SNDRV_PCM_TRIGGER_SUSPEND: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + tegra30_i2s_stop_playback(i2s); + else + tegra30_i2s_stop_capture(i2s); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int tegra30_i2s_probe(struct snd_soc_dai *dai) +{ + struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(dai); + + dai->capture_dma_data = &i2s->capture_dma_data; + dai->playback_dma_data = &i2s->playback_dma_data; + + return 0; +} + +static struct snd_soc_dai_ops tegra30_i2s_dai_ops = { + .startup = tegra30_i2s_startup, + .shutdown = tegra30_i2s_shutdown, + .set_fmt = tegra30_i2s_set_fmt, + .hw_params = tegra30_i2s_hw_params, + .trigger = tegra30_i2s_trigger, +}; + +static const struct snd_soc_dai_driver tegra30_i2s_dai_template = { + .probe = tegra30_i2s_probe, + .playback = { + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_96000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + .capture = { + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_96000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + .ops = &tegra30_i2s_dai_ops, + .symmetric_rates = 1, +}; + +static bool tegra30_i2s_wr_rd_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TEGRA30_I2S_CTRL: + case TEGRA30_I2S_TIMING: + case TEGRA30_I2S_OFFSET: + case TEGRA30_I2S_CH_CTRL: + case TEGRA30_I2S_SLOT_CTRL: + case TEGRA30_I2S_CIF_RX_CTRL: + case TEGRA30_I2S_CIF_TX_CTRL: + case TEGRA30_I2S_FLOWCTL: + case TEGRA30_I2S_TX_STEP: + case TEGRA30_I2S_FLOW_STATUS: + case TEGRA30_I2S_FLOW_TOTAL: + case TEGRA30_I2S_FLOW_OVER: + case TEGRA30_I2S_FLOW_UNDER: + case TEGRA30_I2S_LCOEF_1_4_0: + case TEGRA30_I2S_LCOEF_1_4_1: + case TEGRA30_I2S_LCOEF_1_4_2: + case TEGRA30_I2S_LCOEF_1_4_3: + case TEGRA30_I2S_LCOEF_1_4_4: + case TEGRA30_I2S_LCOEF_1_4_5: + case TEGRA30_I2S_LCOEF_2_4_0: + case TEGRA30_I2S_LCOEF_2_4_1: + case TEGRA30_I2S_LCOEF_2_4_2: + return true; + default: + return false; + }; +} + +static bool tegra30_i2s_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TEGRA30_I2S_FLOW_STATUS: + case TEGRA30_I2S_FLOW_TOTAL: + case TEGRA30_I2S_FLOW_OVER: + case TEGRA30_I2S_FLOW_UNDER: + return true; + default: + return false; + }; +} + +static const struct regmap_config tegra30_i2s_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .max_register = TEGRA30_I2S_LCOEF_2_4_2, + .writeable_reg = tegra30_i2s_wr_rd_reg, + .readable_reg = tegra30_i2s_wr_rd_reg, + .volatile_reg = tegra30_i2s_volatile_reg, + .cache_type = REGCACHE_RBTREE, +}; + +static __devinit int tegra30_i2s_platform_probe(struct platform_device *pdev) +{ + struct tegra30_i2s *i2s; + u32 cif_ids[2]; + struct resource *mem, *memregion; + void __iomem *regs; + int ret; + + i2s = devm_kzalloc(&pdev->dev, sizeof(struct tegra30_i2s), GFP_KERNEL); + if (!i2s) { + dev_err(&pdev->dev, "Can't allocate tegra30_i2s\n"); + ret = -ENOMEM; + goto err; + } + dev_set_drvdata(&pdev->dev, i2s); + + i2s->dai = tegra30_i2s_dai_template; + i2s->dai.name = dev_name(&pdev->dev); + + ret = of_property_read_u32_array(pdev->dev.of_node, + "nvidia,ahub-cif-ids", cif_ids, + ARRAY_SIZE(cif_ids)); + if (ret < 0) + goto err; + + i2s->playback_i2s_cif = cif_ids[0]; + i2s->capture_i2s_cif = cif_ids[1]; + + i2s->clk_i2s = clk_get(&pdev->dev, NULL); + if (IS_ERR(i2s->clk_i2s)) { + dev_err(&pdev->dev, "Can't retrieve i2s clock\n"); + ret = PTR_ERR(i2s->clk_i2s); + goto err; + } + + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!mem) { + dev_err(&pdev->dev, "No memory resource\n"); + ret = -ENODEV; + goto err_clk_put; + } + + memregion = devm_request_mem_region(&pdev->dev, mem->start, + resource_size(mem), DRV_NAME); + if (!memregion) { + dev_err(&pdev->dev, "Memory region already claimed\n"); + ret = -EBUSY; + goto err_clk_put; + } + + regs = devm_ioremap(&pdev->dev, mem->start, resource_size(mem)); + if (!regs) { + dev_err(&pdev->dev, "ioremap failed\n"); + ret = -ENOMEM; + goto err_clk_put; + } + + i2s->regmap = devm_regmap_init_mmio(&pdev->dev, regs, + &tegra30_i2s_regmap_config); + if (IS_ERR(i2s->regmap)) { + dev_err(&pdev->dev, "regmap init failed\n"); + ret = PTR_ERR(i2s->regmap); + goto err_clk_put; + } + regcache_cache_only(i2s->regmap, true); + + pm_runtime_enable(&pdev->dev); + if (!pm_runtime_enabled(&pdev->dev)) { + ret = tegra30_i2s_runtime_resume(&pdev->dev); + if (ret) + goto err_pm_disable; + } + + ret = snd_soc_register_dai(&pdev->dev, &i2s->dai); + if (ret) { + dev_err(&pdev->dev, "Could not register DAI: %d\n", ret); + ret = -ENOMEM; + goto err_suspend; + } + + ret = tegra_pcm_platform_register(&pdev->dev); + if (ret) { + dev_err(&pdev->dev, "Could not register PCM: %d\n", ret); + goto err_unregister_dai; + } + + return 0; + +err_unregister_dai: + snd_soc_unregister_dai(&pdev->dev); +err_suspend: + if (!pm_runtime_status_suspended(&pdev->dev)) + tegra30_i2s_runtime_suspend(&pdev->dev); +err_pm_disable: + pm_runtime_disable(&pdev->dev); +err_clk_put: + clk_put(i2s->clk_i2s); +err: + return ret; +} + +static int __devexit tegra30_i2s_platform_remove(struct platform_device *pdev) +{ + struct tegra30_i2s *i2s = dev_get_drvdata(&pdev->dev); + + pm_runtime_disable(&pdev->dev); + if (!pm_runtime_status_suspended(&pdev->dev)) + tegra30_i2s_runtime_suspend(&pdev->dev); + + tegra_pcm_platform_unregister(&pdev->dev); + snd_soc_unregister_dai(&pdev->dev); + + clk_put(i2s->clk_i2s); + + return 0; +} + +static const struct of_device_id tegra30_i2s_of_match[] __devinitconst = { + { .compatible = "nvidia,tegra30-i2s", }, + {}, +}; + +static const struct dev_pm_ops tegra30_i2s_pm_ops __devinitconst = { + SET_RUNTIME_PM_OPS(tegra30_i2s_runtime_suspend, + tegra30_i2s_runtime_resume, NULL) +}; + +static struct platform_driver tegra30_i2s_driver = { + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + .of_match_table = tegra30_i2s_of_match, + .pm = &tegra30_i2s_pm_ops, + }, + .probe = tegra30_i2s_platform_probe, + .remove = __devexit_p(tegra30_i2s_platform_remove), +}; +module_platform_driver(tegra30_i2s_driver); + +MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>"); +MODULE_DESCRIPTION("Tegra30 I2S ASoC driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:" DRV_NAME); +MODULE_DEVICE_TABLE(of, tegra30_i2s_of_match); diff --git a/sound/soc/tegra/tegra30_i2s.h b/sound/soc/tegra/tegra30_i2s.h new file mode 100644 index 000000000000..91adf29c7a87 --- /dev/null +++ b/sound/soc/tegra/tegra30_i2s.h @@ -0,0 +1,242 @@ +/* + * tegra30_i2s.h - Definitions for Tegra30 I2S driver + * + * Copyright (c) 2011,2012, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef __TEGRA30_I2S_H__ +#define __TEGRA30_I2S_H__ + +#include "tegra_pcm.h" + +/* Register offsets from TEGRA30_I2S*_BASE */ + +#define TEGRA30_I2S_CTRL 0x0 +#define TEGRA30_I2S_TIMING 0x4 +#define TEGRA30_I2S_OFFSET 0x08 +#define TEGRA30_I2S_CH_CTRL 0x0c +#define TEGRA30_I2S_SLOT_CTRL 0x10 +#define TEGRA30_I2S_CIF_RX_CTRL 0x14 +#define TEGRA30_I2S_CIF_TX_CTRL 0x18 +#define TEGRA30_I2S_FLOWCTL 0x1c +#define TEGRA30_I2S_TX_STEP 0x20 +#define TEGRA30_I2S_FLOW_STATUS 0x24 +#define TEGRA30_I2S_FLOW_TOTAL 0x28 +#define TEGRA30_I2S_FLOW_OVER 0x2c +#define TEGRA30_I2S_FLOW_UNDER 0x30 +#define TEGRA30_I2S_LCOEF_1_4_0 0x34 +#define TEGRA30_I2S_LCOEF_1_4_1 0x38 +#define TEGRA30_I2S_LCOEF_1_4_2 0x3c +#define TEGRA30_I2S_LCOEF_1_4_3 0x40 +#define TEGRA30_I2S_LCOEF_1_4_4 0x44 +#define TEGRA30_I2S_LCOEF_1_4_5 0x48 +#define TEGRA30_I2S_LCOEF_2_4_0 0x4c +#define TEGRA30_I2S_LCOEF_2_4_1 0x50 +#define TEGRA30_I2S_LCOEF_2_4_2 0x54 + +/* Fields in TEGRA30_I2S_CTRL */ + +#define TEGRA30_I2S_CTRL_XFER_EN_TX (1 << 31) +#define TEGRA30_I2S_CTRL_XFER_EN_RX (1 << 30) +#define TEGRA30_I2S_CTRL_CG_EN (1 << 29) +#define TEGRA30_I2S_CTRL_SOFT_RESET (1 << 28) +#define TEGRA30_I2S_CTRL_TX_FLOWCTL_EN (1 << 27) + +#define TEGRA30_I2S_CTRL_OBS_SEL_SHIFT 24 +#define TEGRA30_I2S_CTRL_OBS_SEL_MASK (7 << TEGRA30_I2S_CTRL_OBS_SEL_SHIFT) + +#define TEGRA30_I2S_FRAME_FORMAT_LRCK 0 +#define TEGRA30_I2S_FRAME_FORMAT_FSYNC 1 + +#define TEGRA30_I2S_CTRL_FRAME_FORMAT_SHIFT 12 +#define TEGRA30_I2S_CTRL_FRAME_FORMAT_MASK (7 << TEGRA30_I2S_CTRL_FRAME_FORMAT_SHIFT) +#define TEGRA30_I2S_CTRL_FRAME_FORMAT_LRCK (TEGRA30_I2S_FRAME_FORMAT_LRCK << TEGRA30_I2S_CTRL_FRAME_FORMAT_SHIFT) +#define TEGRA30_I2S_CTRL_FRAME_FORMAT_FSYNC (TEGRA30_I2S_FRAME_FORMAT_FSYNC << TEGRA30_I2S_CTRL_FRAME_FORMAT_SHIFT) + +#define TEGRA30_I2S_CTRL_MASTER_ENABLE (1 << 10) + +#define TEGRA30_I2S_LRCK_LEFT_LOW 0 +#define TEGRA30_I2S_LRCK_RIGHT_LOW 1 + +#define TEGRA30_I2S_CTRL_LRCK_SHIFT 9 +#define TEGRA30_I2S_CTRL_LRCK_MASK (1 << TEGRA30_I2S_CTRL_LRCK_SHIFT) +#define TEGRA30_I2S_CTRL_LRCK_L_LOW (TEGRA30_I2S_LRCK_LEFT_LOW << TEGRA30_I2S_CTRL_LRCK_SHIFT) +#define TEGRA30_I2S_CTRL_LRCK_R_LOW (TEGRA30_I2S_LRCK_RIGHT_LOW << TEGRA30_I2S_CTRL_LRCK_SHIFT) + +#define TEGRA30_I2S_CTRL_LPBK_ENABLE (1 << 8) + +#define TEGRA30_I2S_BIT_CODE_LINEAR 0 +#define TEGRA30_I2S_BIT_CODE_ULAW 1 +#define TEGRA30_I2S_BIT_CODE_ALAW 2 + +#define TEGRA30_I2S_CTRL_BIT_CODE_SHIFT 4 +#define TEGRA30_I2S_CTRL_BIT_CODE_MASK (3 << TEGRA30_I2S_CTRL_BIT_CODE_SHIFT) +#define TEGRA30_I2S_CTRL_BIT_CODE_LINEAR (TEGRA30_I2S_BIT_CODE_LINEAR << TEGRA30_I2S_CTRL_BIT_CODE_SHIFT) +#define TEGRA30_I2S_CTRL_BIT_CODE_ULAW (TEGRA30_I2S_BIT_CODE_ULAW << TEGRA30_I2S_CTRL_BIT_CODE_SHIFT) +#define TEGRA30_I2S_CTRL_BIT_CODE_ALAW (TEGRA30_I2S_BIT_CODE_ALAW << TEGRA30_I2S_CTRL_BIT_CODE_SHIFT) + +#define TEGRA30_I2S_BITS_8 1 +#define TEGRA30_I2S_BITS_12 2 +#define TEGRA30_I2S_BITS_16 3 +#define TEGRA30_I2S_BITS_20 4 +#define TEGRA30_I2S_BITS_24 5 +#define TEGRA30_I2S_BITS_28 6 +#define TEGRA30_I2S_BITS_32 7 + +/* Sample container size; see {RX,TX}_MASK field in CH_CTRL below */ +#define TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT 0 +#define TEGRA30_I2S_CTRL_BIT_SIZE_MASK (7 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) +#define TEGRA30_I2S_CTRL_BIT_SIZE_8 (TEGRA30_I2S_BITS_8 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) +#define TEGRA30_I2S_CTRL_BIT_SIZE_12 (TEGRA30_I2S_BITS_12 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) +#define TEGRA30_I2S_CTRL_BIT_SIZE_16 (TEGRA30_I2S_BITS_16 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) +#define TEGRA30_I2S_CTRL_BIT_SIZE_20 (TEGRA30_I2S_BITS_20 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) +#define TEGRA30_I2S_CTRL_BIT_SIZE_24 (TEGRA30_I2S_BITS_24 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) +#define TEGRA30_I2S_CTRL_BIT_SIZE_28 (TEGRA30_I2S_BITS_28 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) +#define TEGRA30_I2S_CTRL_BIT_SIZE_32 (TEGRA30_I2S_BITS_32 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) + +/* Fields in TEGRA30_I2S_TIMING */ + +#define TEGRA30_I2S_TIMING_NON_SYM_ENABLE (1 << 12) +#define TEGRA30_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT 0 +#define TEGRA30_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US 0x7fff +#define TEGRA30_I2S_TIMING_CHANNEL_BIT_COUNT_MASK (TEGRA30_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US << TEGRA30_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT) + +/* Fields in TEGRA30_I2S_OFFSET */ + +#define TEGRA30_I2S_OFFSET_RX_DATA_OFFSET_SHIFT 16 +#define TEGRA30_I2S_OFFSET_RX_DATA_OFFSET_MASK_US 0x7ff +#define TEGRA30_I2S_OFFSET_RX_DATA_OFFSET_MASK (TEGRA30_I2S_OFFSET_RX_DATA_OFFSET_MASK_US << TEGRA30_I2S_OFFSET_RX_DATA_OFFSET_SHIFT) +#define TEGRA30_I2S_OFFSET_TX_DATA_OFFSET_SHIFT 0 +#define TEGRA30_I2S_OFFSET_TX_DATA_OFFSET_MASK_US 0x7ff +#define TEGRA30_I2S_OFFSET_TX_DATA_OFFSET_MASK (TEGRA30_I2S_OFFSET_TX_DATA_OFFSET_MASK_US << TEGRA30_I2S_OFFSET_TX_DATA_OFFSET_SHIFT) + +/* Fields in TEGRA30_I2S_CH_CTRL */ + +/* (FSYNC width - 1) in bit clocks */ +#define TEGRA30_I2S_CH_CTRL_FSYNC_WIDTH_SHIFT 24 +#define TEGRA30_I2S_CH_CTRL_FSYNC_WIDTH_MASK_US 0xff +#define TEGRA30_I2S_CH_CTRL_FSYNC_WIDTH_MASK (TEGRA30_I2S_CH_CTRL_FSYNC_WIDTH_MASK_US << TEGRA30_I2S_CH_CTRL_FSYNC_WIDTH_SHIFT) + +#define TEGRA30_I2S_HIGHZ_NO 0 +#define TEGRA30_I2S_HIGHZ_YES 1 +#define TEGRA30_I2S_HIGHZ_ON_HALF_BIT_CLK 2 + +#define TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_SHIFT 12 +#define TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_MASK (3 << TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_SHIFT) +#define TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_NO (TEGRA30_I2S_HIGHZ_NO << TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_SHIFT) +#define TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_YES (TEGRA30_I2S_HIGHZ_YES << TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_SHIFT) +#define TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_ON_HALF_BIT_CLK (TEGRA30_I2S_HIGHZ_ON_HALF_BIT_CLK << TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_SHIFT) + +#define TEGRA30_I2S_MSB_FIRST 0 +#define TEGRA30_I2S_LSB_FIRST 1 + +#define TEGRA30_I2S_CH_CTRL_RX_BIT_ORDER_SHIFT 10 +#define TEGRA30_I2S_CH_CTRL_RX_BIT_ORDER_MASK (1 << TEGRA30_I2S_CH_CTRL_RX_BIT_ORDER_SHIFT) +#define TEGRA30_I2S_CH_CTRL_RX_BIT_ORDER_MSB_FIRST (TEGRA30_I2S_MSB_FIRST << TEGRA30_I2S_CH_CTRL_RX_BIT_ORDER_SHIFT) +#define TEGRA30_I2S_CH_CTRL_RX_BIT_ORDER_LSB_FIRST (TEGRA30_I2S_LSB_FIRST << TEGRA30_I2S_CH_CTRL_RX_BIT_ORDER_SHIFT) +#define TEGRA30_I2S_CH_CTRL_TX_BIT_ORDER_SHIFT 9 +#define TEGRA30_I2S_CH_CTRL_TX_BIT_ORDER_MASK (1 << TEGRA30_I2S_CH_CTRL_TX_BIT_ORDER_SHIFT) +#define TEGRA30_I2S_CH_CTRL_TX_BIT_ORDER_MSB_FIRST (TEGRA30_I2S_MSB_FIRST << TEGRA30_I2S_CH_CTRL_TX_BIT_ORDER_SHIFT) +#define TEGRA30_I2S_CH_CTRL_TX_BIT_ORDER_LSB_FIRST (TEGRA30_I2S_LSB_FIRST << TEGRA30_I2S_CH_CTRL_TX_BIT_ORDER_SHIFT) + +#define TEGRA30_I2S_POS_EDGE 0 +#define TEGRA30_I2S_NEG_EDGE 1 + +#define TEGRA30_I2S_CH_CTRL_EGDE_CTRL_SHIFT 8 +#define TEGRA30_I2S_CH_CTRL_EGDE_CTRL_MASK (1 << TEGRA30_I2S_CH_CTRL_EGDE_CTRL_SHIFT) +#define TEGRA30_I2S_CH_CTRL_EGDE_CTRL_POS_EDGE (TEGRA30_I2S_POS_EDGE << TEGRA30_I2S_CH_CTRL_EGDE_CTRL_SHIFT) +#define TEGRA30_I2S_CH_CTRL_EGDE_CTRL_NEG_EDGE (TEGRA30_I2S_NEG_EDGE << TEGRA30_I2S_CH_CTRL_EGDE_CTRL_SHIFT) + +/* Sample size is # bits from BIT_SIZE minus this field */ +#define TEGRA30_I2S_CH_CTRL_RX_MASK_BITS_SHIFT 4 +#define TEGRA30_I2S_CH_CTRL_RX_MASK_BITS_MASK_US 7 +#define TEGRA30_I2S_CH_CTRL_RX_MASK_BITS_MASK (TEGRA30_I2S_CH_CTRL_RX_MASK_BITS_MASK_US << TEGRA30_I2S_CH_CTRL_RX_MASK_BITS_SHIFT) + +#define TEGRA30_I2S_CH_CTRL_TX_MASK_BITS_SHIFT 0 +#define TEGRA30_I2S_CH_CTRL_TX_MASK_BITS_MASK_US 7 +#define TEGRA30_I2S_CH_CTRL_TX_MASK_BITS_MASK (TEGRA30_I2S_CH_CTRL_TX_MASK_BITS_MASK_US << TEGRA30_I2S_CH_CTRL_TX_MASK_BITS_SHIFT) + +/* Fields in TEGRA30_I2S_SLOT_CTRL */ + +/* Number of slots in frame, minus 1 */ +#define TEGRA30_I2S_SLOT_CTRL_TOTAL_SLOTS_SHIFT 16 +#define TEGRA30_I2S_SLOT_CTRL_TOTAL_SLOTS_MASK_US 7 +#define TEGRA30_I2S_SLOT_CTRL_TOTAL_SLOTS_MASK (TEGRA30_I2S_SLOT_CTRL_TOTAL_SLOT_MASK_US << TEGRA30_I2S_SLOT_CTRL_TOTAL_SLOT_SHIFT) + +/* TDM mode slot enable bitmask */ +#define TEGRA30_I2S_SLOT_CTRL_RX_SLOT_ENABLES_SHIFT 8 +#define TEGRA30_I2S_SLOT_CTRL_RX_SLOT_ENABLES_MASK (0xff << TEGRA30_I2S_SLOT_CTRL_RX_SLOT_ENABLES_SHIFT) + +#define TEGRA30_I2S_SLOT_CTRL_TX_SLOT_ENABLES_SHIFT 0 +#define TEGRA30_I2S_SLOT_CTRL_TX_SLOT_ENABLES_MASK (0xff << TEGRA30_I2S_SLOT_CTRL_TX_SLOT_ENABLES_SHIFT) + +/* Fields in TEGRA30_I2S_CIF_RX_CTRL */ +/* Uses field from TEGRA30_AUDIOCIF_CTRL_* in tegra30_ahub.h */ + +/* Fields in TEGRA30_I2S_CIF_TX_CTRL */ +/* Uses field from TEGRA30_AUDIOCIF_CTRL_* in tegra30_ahub.h */ + +/* Fields in TEGRA30_I2S_FLOWCTL */ + +#define TEGRA30_I2S_FILTER_LINEAR 0 +#define TEGRA30_I2S_FILTER_QUAD 1 + +#define TEGRA30_I2S_FLOWCTL_FILTER_SHIFT 31 +#define TEGRA30_I2S_FLOWCTL_FILTER_MASK (1 << TEGRA30_I2S_FLOWCTL_FILTER_SHIFT) +#define TEGRA30_I2S_FLOWCTL_FILTER_LINEAR (TEGRA30_I2S_FILTER_LINEAR << TEGRA30_I2S_FLOWCTL_FILTER_SHIFT) +#define TEGRA30_I2S_FLOWCTL_FILTER_QUAD (TEGRA30_I2S_FILTER_QUAD << TEGRA30_I2S_FLOWCTL_FILTER_SHIFT) + +/* Fields in TEGRA30_I2S_TX_STEP */ + +#define TEGRA30_I2S_TX_STEP_SHIFT 0 +#define TEGRA30_I2S_TX_STEP_MASK_US 0xffff +#define TEGRA30_I2S_TX_STEP_MASK (TEGRA30_I2S_TX_STEP_MASK_US << TEGRA30_I2S_TX_STEP_SHIFT) + +/* Fields in TEGRA30_I2S_FLOW_STATUS */ + +#define TEGRA30_I2S_FLOW_STATUS_UNDERFLOW (1 << 31) +#define TEGRA30_I2S_FLOW_STATUS_OVERFLOW (1 << 30) +#define TEGRA30_I2S_FLOW_STATUS_MONITOR_INT_EN (1 << 4) +#define TEGRA30_I2S_FLOW_STATUS_COUNTER_CLR (1 << 3) +#define TEGRA30_I2S_FLOW_STATUS_MONITOR_CLR (1 << 2) +#define TEGRA30_I2S_FLOW_STATUS_COUNTER_EN (1 << 1) +#define TEGRA30_I2S_FLOW_STATUS_MONITOR_EN (1 << 0) + +/* + * There are no fields in TEGRA30_I2S_FLOW_TOTAL, TEGRA30_I2S_FLOW_OVER, + * TEGRA30_I2S_FLOW_UNDER; they are counters taking the whole register. + */ + +/* Fields in TEGRA30_I2S_LCOEF_* */ + +#define TEGRA30_I2S_LCOEF_COEF_SHIFT 0 +#define TEGRA30_I2S_LCOEF_COEF_MASK_US 0xffff +#define TEGRA30_I2S_LCOEF_COEF_MASK (TEGRA30_I2S_LCOEF_COEF_MASK_US << TEGRA30_I2S_LCOEF_COEF_SHIFT) + +struct tegra30_i2s { + struct snd_soc_dai_driver dai; + int cif_id; + struct clk *clk_i2s; + enum tegra30_ahub_txcif capture_i2s_cif; + enum tegra30_ahub_rxcif capture_fifo_cif; + struct tegra_pcm_dma_params capture_dma_data; + enum tegra30_ahub_rxcif playback_i2s_cif; + enum tegra30_ahub_txcif playback_fifo_cif; + struct tegra_pcm_dma_params playback_dma_data; + struct regmap *regmap; + u32 reg_ctrl; +}; + +#endif diff --git a/sound/soc/tegra/tegra_alc5632.c b/sound/soc/tegra/tegra_alc5632.c index e45ccd851f6a..32de7006daf0 100644 --- a/sound/soc/tegra/tegra_alc5632.c +++ b/sound/soc/tegra/tegra_alc5632.c @@ -1,16 +1,17 @@ /* -* tegra_alc5632.c -- Toshiba AC100(PAZ00) machine ASoC driver -* -* Copyright (C) 2011 The AC100 Kernel Team <ac100@lists.lauchpad.net> -* -* Authors: Leon Romanovsky <leon@leon.nu> -* Andrey Danin <danindrey@mail.ru> -* Marc Dietrich <marvin24@gmx.de> -* -* This program is free software; you can redistribute it and/or modify -* it under the terms of the GNU General Public License version 2 as -* published by the Free Software Foundation. -*/ + * tegra_alc5632.c -- Toshiba AC100(PAZ00) machine ASoC driver + * + * Copyright (C) 2011 The AC100 Kernel Team <ac100@lists.lauchpad.net> + * Copyright (C) 2012 - NVIDIA, Inc. + * + * Authors: Leon Romanovsky <leon@leon.nu> + * Andrey Danin <danindrey@mail.ru> + * Marc Dietrich <marvin24@gmx.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ #include <asm/mach-types.h> @@ -28,9 +29,6 @@ #include "../codecs/alc5632.h" -#include "tegra_das.h" -#include "tegra_i2s.h" -#include "tegra_pcm.h" #include "tegra_asoc_utils.h" #define DRV_NAME "tegra-alc5632" @@ -39,7 +37,6 @@ struct tegra_alc5632 { struct tegra_asoc_utils_data util_data; - struct platform_device *pcm_dev; int gpio_requested; int gpio_hp_det; }; @@ -140,7 +137,6 @@ static int tegra_alc5632_asoc_init(struct snd_soc_pcm_runtime *rtd) static struct snd_soc_dai_link tegra_alc5632_dai = { .name = "ALC5632", .stream_name = "ALC5632 PCM", - .platform_name = "tegra-pcm-audio", .codec_dai_name = "alc5632-hifi", .init = tegra_alc5632_asoc_init, .ops = &tegra_alc5632_asoc_ops, @@ -179,8 +175,6 @@ static __devinit int tegra_alc5632_probe(struct platform_device *pdev) platform_set_drvdata(pdev, card); snd_soc_card_set_drvdata(card, alc5632); - alc5632->pcm_dev = ERR_PTR(-EINVAL); - if (!(pdev->dev.of_node)) { dev_err(&pdev->dev, "Must be instantiated using device tree\n"); ret = -EINVAL; @@ -214,18 +208,11 @@ static __devinit int tegra_alc5632_probe(struct platform_device *pdev) goto err; } - alc5632->pcm_dev = platform_device_register_simple( - "tegra-pcm-audio", -1, NULL, 0); - if (IS_ERR(alc5632->pcm_dev)) { - dev_err(&pdev->dev, - "Can't instantiate tegra-pcm-audio\n"); - ret = PTR_ERR(alc5632->pcm_dev); - goto err; - } + tegra_alc5632_dai.platform_of_node = tegra_alc5632_dai.cpu_dai_of_node; ret = tegra_asoc_utils_init(&alc5632->util_data, &pdev->dev); if (ret) - goto err_unregister; + goto err; ret = snd_soc_register_card(card); if (ret) { @@ -238,9 +225,6 @@ static __devinit int tegra_alc5632_probe(struct platform_device *pdev) err_fini_utils: tegra_asoc_utils_fini(&alc5632->util_data); -err_unregister: - if (!IS_ERR(alc5632->pcm_dev)) - platform_device_unregister(alc5632->pcm_dev); err: return ret; } @@ -259,8 +243,6 @@ static int __devexit tegra_alc5632_remove(struct platform_device *pdev) snd_soc_unregister_card(card); tegra_asoc_utils_fini(&machine->util_data); - if (!IS_ERR(machine->pcm_dev)) - platform_device_unregister(machine->pcm_dev); return 0; } diff --git a/sound/soc/tegra/tegra_asoc_utils.c b/sound/soc/tegra/tegra_asoc_utils.c index f8428e410e05..9515ce58ea02 100644 --- a/sound/soc/tegra/tegra_asoc_utils.c +++ b/sound/soc/tegra/tegra_asoc_utils.c @@ -2,7 +2,7 @@ * tegra_asoc_utils.c - Harmony machine ASoC driver * * Author: Stephen Warren <swarren@nvidia.com> - * Copyright (C) 2010 - NVIDIA, Inc. + * Copyright (C) 2010,2012 - NVIDIA, Inc. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -25,6 +25,7 @@ #include <linux/err.h> #include <linux/kernel.h> #include <linux/module.h> +#include <linux/of.h> #include "tegra_asoc_utils.h" @@ -40,7 +41,10 @@ int tegra_asoc_utils_set_rate(struct tegra_asoc_utils_data *data, int srate, case 22050: case 44100: case 88200: - new_baseclock = 56448000; + if (data->soc == TEGRA_ASOC_UTILS_SOC_TEGRA20) + new_baseclock = 56448000; + else + new_baseclock = 564480000; break; case 8000: case 16000: @@ -48,7 +52,10 @@ int tegra_asoc_utils_set_rate(struct tegra_asoc_utils_data *data, int srate, case 48000: case 64000: case 96000: - new_baseclock = 73728000; + if (data->soc == TEGRA_ASOC_UTILS_SOC_TEGRA20) + new_baseclock = 73728000; + else + new_baseclock = 552960000; break; default: return -EINVAL; @@ -78,7 +85,7 @@ int tegra_asoc_utils_set_rate(struct tegra_asoc_utils_data *data, int srate, return err; } - /* Don't set cdev1 rate; its locked to pll_a_out0 */ + /* Don't set cdev1/extern1 rate; it's locked to pll_a_out0 */ err = clk_enable(data->clk_pll_a); if (err) { @@ -112,6 +119,17 @@ int tegra_asoc_utils_init(struct tegra_asoc_utils_data *data, data->dev = dev; + if (of_machine_is_compatible("nvidia,tegra20")) + data->soc = TEGRA_ASOC_UTILS_SOC_TEGRA20; + else if (of_machine_is_compatible("nvidia,tegra30")) + data->soc = TEGRA_ASOC_UTILS_SOC_TEGRA30; + else if (!dev->of_node) + /* non-DT is always Tegra20 */ + data->soc = TEGRA_ASOC_UTILS_SOC_TEGRA20; + else + /* DT boot, but unknown SoC */ + return -EINVAL; + data->clk_pll_a = clk_get_sys(NULL, "pll_a"); if (IS_ERR(data->clk_pll_a)) { dev_err(data->dev, "Can't retrieve clk pll_a\n"); @@ -126,15 +144,24 @@ int tegra_asoc_utils_init(struct tegra_asoc_utils_data *data, goto err_put_pll_a; } - data->clk_cdev1 = clk_get_sys(NULL, "cdev1"); + if (data->soc == TEGRA_ASOC_UTILS_SOC_TEGRA20) + data->clk_cdev1 = clk_get_sys(NULL, "cdev1"); + else + data->clk_cdev1 = clk_get_sys("extern1", NULL); if (IS_ERR(data->clk_cdev1)) { dev_err(data->dev, "Can't retrieve clk cdev1\n"); ret = PTR_ERR(data->clk_cdev1); goto err_put_pll_a_out0; } + ret = tegra_asoc_utils_set_rate(data, 44100, 256 * 44100); + if (ret) + goto err_put_cdev1; + return 0; +err_put_cdev1: + clk_put(data->clk_cdev1); err_put_pll_a_out0: clk_put(data->clk_pll_a_out0); err_put_pll_a: diff --git a/sound/soc/tegra/tegra_asoc_utils.h b/sound/soc/tegra/tegra_asoc_utils.h index 4818195da25c..44db1dbb8f21 100644 --- a/sound/soc/tegra/tegra_asoc_utils.h +++ b/sound/soc/tegra/tegra_asoc_utils.h @@ -2,7 +2,7 @@ * tegra_asoc_utils.h - Definitions for Tegra DAS driver * * Author: Stephen Warren <swarren@nvidia.com> - * Copyright (C) 2010 - NVIDIA, Inc. + * Copyright (C) 2010,2012 - NVIDIA, Inc. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -26,8 +26,14 @@ struct clk; struct device; +enum tegra_asoc_utils_soc { + TEGRA_ASOC_UTILS_SOC_TEGRA20, + TEGRA_ASOC_UTILS_SOC_TEGRA30, +}; + struct tegra_asoc_utils_data { struct device *dev; + enum tegra_asoc_utils_soc soc; struct clk *clk_pll_a; struct clk *clk_pll_a_out0; struct clk *clk_cdev1; @@ -42,4 +48,3 @@ int tegra_asoc_utils_init(struct tegra_asoc_utils_data *data, void tegra_asoc_utils_fini(struct tegra_asoc_utils_data *data); #endif - diff --git a/sound/soc/tegra/tegra_das.c b/sound/soc/tegra/tegra_das.c deleted file mode 100644 index 3b3c1ba4d235..000000000000 --- a/sound/soc/tegra/tegra_das.c +++ /dev/null @@ -1,261 +0,0 @@ -/* - * tegra_das.c - Tegra DAS driver - * - * Author: Stephen Warren <swarren@nvidia.com> - * Copyright (C) 2010 - NVIDIA, Inc. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * - */ - -#include <linux/module.h> -#include <linux/debugfs.h> -#include <linux/device.h> -#include <linux/platform_device.h> -#include <linux/seq_file.h> -#include <linux/slab.h> -#include <linux/io.h> -#include <mach/iomap.h> -#include <sound/soc.h> -#include "tegra_das.h" - -#define DRV_NAME "tegra-das" - -static struct tegra_das *das; - -static inline void tegra_das_write(u32 reg, u32 val) -{ - __raw_writel(val, das->regs + reg); -} - -static inline u32 tegra_das_read(u32 reg) -{ - return __raw_readl(das->regs + reg); -} - -int tegra_das_connect_dap_to_dac(int dap, int dac) -{ - u32 addr; - u32 reg; - - if (!das) - return -ENODEV; - - addr = TEGRA_DAS_DAP_CTRL_SEL + - (dap * TEGRA_DAS_DAP_CTRL_SEL_STRIDE); - reg = dac << TEGRA_DAS_DAP_CTRL_SEL_DAP_CTRL_SEL_P; - - tegra_das_write(addr, reg); - - return 0; -} -EXPORT_SYMBOL_GPL(tegra_das_connect_dap_to_dac); - -int tegra_das_connect_dap_to_dap(int dap, int otherdap, int master, - int sdata1rx, int sdata2rx) -{ - u32 addr; - u32 reg; - - if (!das) - return -ENODEV; - - addr = TEGRA_DAS_DAP_CTRL_SEL + - (dap * TEGRA_DAS_DAP_CTRL_SEL_STRIDE); - reg = otherdap << TEGRA_DAS_DAP_CTRL_SEL_DAP_CTRL_SEL_P | - !!sdata2rx << TEGRA_DAS_DAP_CTRL_SEL_DAP_SDATA2_TX_RX_P | - !!sdata1rx << TEGRA_DAS_DAP_CTRL_SEL_DAP_SDATA1_TX_RX_P | - !!master << TEGRA_DAS_DAP_CTRL_SEL_DAP_MS_SEL_P; - - tegra_das_write(addr, reg); - - return 0; -} -EXPORT_SYMBOL_GPL(tegra_das_connect_dap_to_dap); - -int tegra_das_connect_dac_to_dap(int dac, int dap) -{ - u32 addr; - u32 reg; - - if (!das) - return -ENODEV; - - addr = TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL + - (dac * TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_STRIDE); - reg = dap << TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_CLK_SEL_P | - dap << TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA1_SEL_P | - dap << TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA2_SEL_P; - - tegra_das_write(addr, reg); - - return 0; -} -EXPORT_SYMBOL_GPL(tegra_das_connect_dac_to_dap); - -#ifdef CONFIG_DEBUG_FS -static int tegra_das_show(struct seq_file *s, void *unused) -{ - int i; - u32 addr; - u32 reg; - - for (i = 0; i < TEGRA_DAS_DAP_CTRL_SEL_COUNT; i++) { - addr = TEGRA_DAS_DAP_CTRL_SEL + - (i * TEGRA_DAS_DAP_CTRL_SEL_STRIDE); - reg = tegra_das_read(addr); - seq_printf(s, "TEGRA_DAS_DAP_CTRL_SEL[%d] = %08x\n", i, reg); - } - - for (i = 0; i < TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_COUNT; i++) { - addr = TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL + - (i * TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_STRIDE); - reg = tegra_das_read(addr); - seq_printf(s, "TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL[%d] = %08x\n", - i, reg); - } - - return 0; -} - -static int tegra_das_debug_open(struct inode *inode, struct file *file) -{ - return single_open(file, tegra_das_show, inode->i_private); -} - -static const struct file_operations tegra_das_debug_fops = { - .open = tegra_das_debug_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static void tegra_das_debug_add(struct tegra_das *das) -{ - das->debug = debugfs_create_file(DRV_NAME, S_IRUGO, - snd_soc_debugfs_root, das, - &tegra_das_debug_fops); -} - -static void tegra_das_debug_remove(struct tegra_das *das) -{ - if (das->debug) - debugfs_remove(das->debug); -} -#else -static inline void tegra_das_debug_add(struct tegra_das *das) -{ -} - -static inline void tegra_das_debug_remove(struct tegra_das *das) -{ -} -#endif - -static int __devinit tegra_das_probe(struct platform_device *pdev) -{ - struct resource *res, *region; - int ret = 0; - - if (das) - return -ENODEV; - - das = devm_kzalloc(&pdev->dev, sizeof(struct tegra_das), GFP_KERNEL); - if (!das) { - dev_err(&pdev->dev, "Can't allocate tegra_das\n"); - ret = -ENOMEM; - goto err; - } - das->dev = &pdev->dev; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "No memory resource\n"); - ret = -ENODEV; - goto err; - } - - region = devm_request_mem_region(&pdev->dev, res->start, - resource_size(res), pdev->name); - if (!region) { - dev_err(&pdev->dev, "Memory region already claimed\n"); - ret = -EBUSY; - goto err; - } - - das->regs = devm_ioremap(&pdev->dev, res->start, resource_size(res)); - if (!das->regs) { - dev_err(&pdev->dev, "ioremap failed\n"); - ret = -ENOMEM; - goto err; - } - - ret = tegra_das_connect_dap_to_dac(TEGRA_DAS_DAP_ID_1, - TEGRA_DAS_DAP_SEL_DAC1); - if (ret) { - dev_err(&pdev->dev, "Can't set up DAS DAP connection\n"); - goto err; - } - ret = tegra_das_connect_dac_to_dap(TEGRA_DAS_DAC_ID_1, - TEGRA_DAS_DAC_SEL_DAP1); - if (ret) { - dev_err(&pdev->dev, "Can't set up DAS DAC connection\n"); - goto err; - } - - tegra_das_debug_add(das); - - platform_set_drvdata(pdev, das); - - return 0; - -err: - das = NULL; - return ret; -} - -static int __devexit tegra_das_remove(struct platform_device *pdev) -{ - if (!das) - return -ENODEV; - - tegra_das_debug_remove(das); - - das = NULL; - - return 0; -} - -static const struct of_device_id tegra_das_of_match[] __devinitconst = { - { .compatible = "nvidia,tegra20-das", }, - {}, -}; - -static struct platform_driver tegra_das_driver = { - .probe = tegra_das_probe, - .remove = __devexit_p(tegra_das_remove), - .driver = { - .name = DRV_NAME, - .owner = THIS_MODULE, - .of_match_table = tegra_das_of_match, - }, -}; -module_platform_driver(tegra_das_driver); - -MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>"); -MODULE_DESCRIPTION("Tegra DAS driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:" DRV_NAME); -MODULE_DEVICE_TABLE(of, tegra_das_of_match); diff --git a/sound/soc/tegra/tegra_das.h b/sound/soc/tegra/tegra_das.h deleted file mode 100644 index 2c96c7b3c459..000000000000 --- a/sound/soc/tegra/tegra_das.h +++ /dev/null @@ -1,135 +0,0 @@ -/* - * tegra_das.h - Definitions for Tegra DAS driver - * - * Author: Stephen Warren <swarren@nvidia.com> - * Copyright (C) 2010 - NVIDIA, Inc. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * - */ - -#ifndef __TEGRA_DAS_H__ -#define __TEGRA_DAS_H__ - -/* Register TEGRA_DAS_DAP_CTRL_SEL */ -#define TEGRA_DAS_DAP_CTRL_SEL 0x00 -#define TEGRA_DAS_DAP_CTRL_SEL_COUNT 5 -#define TEGRA_DAS_DAP_CTRL_SEL_STRIDE 4 -#define TEGRA_DAS_DAP_CTRL_SEL_DAP_MS_SEL_P 31 -#define TEGRA_DAS_DAP_CTRL_SEL_DAP_MS_SEL_S 1 -#define TEGRA_DAS_DAP_CTRL_SEL_DAP_SDATA1_TX_RX_P 30 -#define TEGRA_DAS_DAP_CTRL_SEL_DAP_SDATA1_TX_RX_S 1 -#define TEGRA_DAS_DAP_CTRL_SEL_DAP_SDATA2_TX_RX_P 29 -#define TEGRA_DAS_DAP_CTRL_SEL_DAP_SDATA2_TX_RX_S 1 -#define TEGRA_DAS_DAP_CTRL_SEL_DAP_CTRL_SEL_P 0 -#define TEGRA_DAS_DAP_CTRL_SEL_DAP_CTRL_SEL_S 5 - -/* Values for field TEGRA_DAS_DAP_CTRL_SEL_DAP_CTRL_SEL */ -#define TEGRA_DAS_DAP_SEL_DAC1 0 -#define TEGRA_DAS_DAP_SEL_DAC2 1 -#define TEGRA_DAS_DAP_SEL_DAC3 2 -#define TEGRA_DAS_DAP_SEL_DAP1 16 -#define TEGRA_DAS_DAP_SEL_DAP2 17 -#define TEGRA_DAS_DAP_SEL_DAP3 18 -#define TEGRA_DAS_DAP_SEL_DAP4 19 -#define TEGRA_DAS_DAP_SEL_DAP5 20 - -/* Register TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL */ -#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL 0x40 -#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_COUNT 3 -#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_STRIDE 4 -#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA2_SEL_P 28 -#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA2_SEL_S 4 -#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA1_SEL_P 24 -#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA1_SEL_S 4 -#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_CLK_SEL_P 0 -#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_CLK_SEL_S 4 - -/* - * Values for: - * TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA2_SEL - * TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA1_SEL - * TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_CLK_SEL - */ -#define TEGRA_DAS_DAC_SEL_DAP1 0 -#define TEGRA_DAS_DAC_SEL_DAP2 1 -#define TEGRA_DAS_DAC_SEL_DAP3 2 -#define TEGRA_DAS_DAC_SEL_DAP4 3 -#define TEGRA_DAS_DAC_SEL_DAP5 4 - -/* - * Names/IDs of the DACs/DAPs. - */ - -#define TEGRA_DAS_DAP_ID_1 0 -#define TEGRA_DAS_DAP_ID_2 1 -#define TEGRA_DAS_DAP_ID_3 2 -#define TEGRA_DAS_DAP_ID_4 3 -#define TEGRA_DAS_DAP_ID_5 4 - -#define TEGRA_DAS_DAC_ID_1 0 -#define TEGRA_DAS_DAC_ID_2 1 -#define TEGRA_DAS_DAC_ID_3 2 - -struct tegra_das { - struct device *dev; - void __iomem *regs; - struct dentry *debug; -}; - -/* - * Terminology: - * DAS: Digital audio switch (HW module controlled by this driver) - * DAP: Digital audio port (port/pins on Tegra device) - * DAC: Digital audio controller (e.g. I2S or AC97 controller elsewhere) - * - * The Tegra DAS is a mux/cross-bar which can connect each DAP to a specific - * DAC, or another DAP. When DAPs are connected, one must be the master and - * one the slave. Each DAC allows selection of a specific DAP for input, to - * cater for the case where N DAPs are connected to 1 DAC for broadcast - * output. - * - * This driver is dumb; no attempt is made to ensure that a valid routing - * configuration is programmed. - */ - -/* - * Connect a DAP to to a DAC - * dap_id: DAP to connect: TEGRA_DAS_DAP_ID_* - * dac_sel: DAC to connect to: TEGRA_DAS_DAP_SEL_DAC* - */ -extern int tegra_das_connect_dap_to_dac(int dap_id, int dac_sel); - -/* - * Connect a DAP to to another DAP - * dap_id: DAP to connect: TEGRA_DAS_DAP_ID_* - * other_dap_sel: DAP to connect to: TEGRA_DAS_DAP_SEL_DAP* - * master: Is this DAP the master (1) or slave (0) - * sdata1rx: Is this DAP's SDATA1 pin RX (1) or TX (0) - * sdata2rx: Is this DAP's SDATA2 pin RX (1) or TX (0) - */ -extern int tegra_das_connect_dap_to_dap(int dap_id, int other_dap_sel, - int master, int sdata1rx, - int sdata2rx); - -/* - * Connect a DAC's input to a DAP - * (DAC outputs are selected by the DAP) - * dac_id: DAC ID to connect: TEGRA_DAS_DAC_ID_* - * dap_sel: DAP to receive input from: TEGRA_DAS_DAC_SEL_DAP* - */ -extern int tegra_das_connect_dac_to_dap(int dac_id, int dap_sel); - -#endif diff --git a/sound/soc/tegra/tegra_i2s.c b/sound/soc/tegra/tegra_i2s.c deleted file mode 100644 index e53349912b2e..000000000000 --- a/sound/soc/tegra/tegra_i2s.c +++ /dev/null @@ -1,459 +0,0 @@ -/* - * tegra_i2s.c - Tegra I2S driver - * - * Author: Stephen Warren <swarren@nvidia.com> - * Copyright (C) 2010 - NVIDIA, Inc. - * - * Based on code copyright/by: - * - * Copyright (c) 2009-2010, NVIDIA Corporation. - * Scott Peterson <speterson@nvidia.com> - * - * Copyright (C) 2010 Google, Inc. - * Iliyan Malchev <malchev@google.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * - */ - -#include <linux/clk.h> -#include <linux/module.h> -#include <linux/debugfs.h> -#include <linux/device.h> -#include <linux/platform_device.h> -#include <linux/seq_file.h> -#include <linux/slab.h> -#include <linux/io.h> -#include <linux/of.h> -#include <mach/iomap.h> -#include <sound/core.h> -#include <sound/pcm.h> -#include <sound/pcm_params.h> -#include <sound/soc.h> - -#include "tegra_i2s.h" - -#define DRV_NAME "tegra-i2s" - -static inline void tegra_i2s_write(struct tegra_i2s *i2s, u32 reg, u32 val) -{ - __raw_writel(val, i2s->regs + reg); -} - -static inline u32 tegra_i2s_read(struct tegra_i2s *i2s, u32 reg) -{ - return __raw_readl(i2s->regs + reg); -} - -#ifdef CONFIG_DEBUG_FS -static int tegra_i2s_show(struct seq_file *s, void *unused) -{ -#define REG(r) { r, #r } - static const struct { - int offset; - const char *name; - } regs[] = { - REG(TEGRA_I2S_CTRL), - REG(TEGRA_I2S_STATUS), - REG(TEGRA_I2S_TIMING), - REG(TEGRA_I2S_FIFO_SCR), - REG(TEGRA_I2S_PCM_CTRL), - REG(TEGRA_I2S_NW_CTRL), - REG(TEGRA_I2S_TDM_CTRL), - REG(TEGRA_I2S_TDM_TX_RX_CTRL), - }; -#undef REG - - struct tegra_i2s *i2s = s->private; - int i; - - clk_enable(i2s->clk_i2s); - - for (i = 0; i < ARRAY_SIZE(regs); i++) { - u32 val = tegra_i2s_read(i2s, regs[i].offset); - seq_printf(s, "%s = %08x\n", regs[i].name, val); - } - - clk_disable(i2s->clk_i2s); - - return 0; -} - -static int tegra_i2s_debug_open(struct inode *inode, struct file *file) -{ - return single_open(file, tegra_i2s_show, inode->i_private); -} - -static const struct file_operations tegra_i2s_debug_fops = { - .open = tegra_i2s_debug_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static void tegra_i2s_debug_add(struct tegra_i2s *i2s) -{ - i2s->debug = debugfs_create_file(i2s->dai.name, S_IRUGO, - snd_soc_debugfs_root, i2s, - &tegra_i2s_debug_fops); -} - -static void tegra_i2s_debug_remove(struct tegra_i2s *i2s) -{ - if (i2s->debug) - debugfs_remove(i2s->debug); -} -#else -static inline void tegra_i2s_debug_add(struct tegra_i2s *i2s) -{ -} - -static inline void tegra_i2s_debug_remove(struct tegra_i2s *i2s) -{ -} -#endif - -static int tegra_i2s_set_fmt(struct snd_soc_dai *dai, - unsigned int fmt) -{ - struct tegra_i2s *i2s = snd_soc_dai_get_drvdata(dai); - - switch (fmt & SND_SOC_DAIFMT_INV_MASK) { - case SND_SOC_DAIFMT_NB_NF: - break; - default: - return -EINVAL; - } - - i2s->reg_ctrl &= ~TEGRA_I2S_CTRL_MASTER_ENABLE; - switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { - case SND_SOC_DAIFMT_CBS_CFS: - i2s->reg_ctrl |= TEGRA_I2S_CTRL_MASTER_ENABLE; - break; - case SND_SOC_DAIFMT_CBM_CFM: - break; - default: - return -EINVAL; - } - - i2s->reg_ctrl &= ~(TEGRA_I2S_CTRL_BIT_FORMAT_MASK | - TEGRA_I2S_CTRL_LRCK_MASK); - switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { - case SND_SOC_DAIFMT_DSP_A: - i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_FORMAT_DSP; - i2s->reg_ctrl |= TEGRA_I2S_CTRL_LRCK_L_LOW; - break; - case SND_SOC_DAIFMT_DSP_B: - i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_FORMAT_DSP; - i2s->reg_ctrl |= TEGRA_I2S_CTRL_LRCK_R_LOW; - break; - case SND_SOC_DAIFMT_I2S: - i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_FORMAT_I2S; - i2s->reg_ctrl |= TEGRA_I2S_CTRL_LRCK_L_LOW; - break; - case SND_SOC_DAIFMT_RIGHT_J: - i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_FORMAT_RJM; - i2s->reg_ctrl |= TEGRA_I2S_CTRL_LRCK_L_LOW; - break; - case SND_SOC_DAIFMT_LEFT_J: - i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_FORMAT_LJM; - i2s->reg_ctrl |= TEGRA_I2S_CTRL_LRCK_L_LOW; - break; - default: - return -EINVAL; - } - - return 0; -} - -static int tegra_i2s_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params, - struct snd_soc_dai *dai) -{ - struct device *dev = substream->pcm->card->dev; - struct tegra_i2s *i2s = snd_soc_dai_get_drvdata(dai); - u32 reg; - int ret, sample_size, srate, i2sclock, bitcnt; - - i2s->reg_ctrl &= ~TEGRA_I2S_CTRL_BIT_SIZE_MASK; - switch (params_format(params)) { - case SNDRV_PCM_FORMAT_S16_LE: - i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_SIZE_16; - sample_size = 16; - break; - case SNDRV_PCM_FORMAT_S24_LE: - i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_SIZE_24; - sample_size = 24; - break; - case SNDRV_PCM_FORMAT_S32_LE: - i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_SIZE_32; - sample_size = 32; - break; - default: - return -EINVAL; - } - - srate = params_rate(params); - - /* Final "* 2" required by Tegra hardware */ - i2sclock = srate * params_channels(params) * sample_size * 2; - - ret = clk_set_rate(i2s->clk_i2s, i2sclock); - if (ret) { - dev_err(dev, "Can't set I2S clock rate: %d\n", ret); - return ret; - } - - bitcnt = (i2sclock / (2 * srate)) - 1; - if (bitcnt < 0 || bitcnt > TEGRA_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US) - return -EINVAL; - reg = bitcnt << TEGRA_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT; - - if (i2sclock % (2 * srate)) - reg |= TEGRA_I2S_TIMING_NON_SYM_ENABLE; - - if (!i2s->clk_refs) - clk_enable(i2s->clk_i2s); - - tegra_i2s_write(i2s, TEGRA_I2S_TIMING, reg); - - tegra_i2s_write(i2s, TEGRA_I2S_FIFO_SCR, - TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_FOUR_SLOTS | - TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_FOUR_SLOTS); - - if (!i2s->clk_refs) - clk_disable(i2s->clk_i2s); - - return 0; -} - -static void tegra_i2s_start_playback(struct tegra_i2s *i2s) -{ - i2s->reg_ctrl |= TEGRA_I2S_CTRL_FIFO1_ENABLE; - tegra_i2s_write(i2s, TEGRA_I2S_CTRL, i2s->reg_ctrl); -} - -static void tegra_i2s_stop_playback(struct tegra_i2s *i2s) -{ - i2s->reg_ctrl &= ~TEGRA_I2S_CTRL_FIFO1_ENABLE; - tegra_i2s_write(i2s, TEGRA_I2S_CTRL, i2s->reg_ctrl); -} - -static void tegra_i2s_start_capture(struct tegra_i2s *i2s) -{ - i2s->reg_ctrl |= TEGRA_I2S_CTRL_FIFO2_ENABLE; - tegra_i2s_write(i2s, TEGRA_I2S_CTRL, i2s->reg_ctrl); -} - -static void tegra_i2s_stop_capture(struct tegra_i2s *i2s) -{ - i2s->reg_ctrl &= ~TEGRA_I2S_CTRL_FIFO2_ENABLE; - tegra_i2s_write(i2s, TEGRA_I2S_CTRL, i2s->reg_ctrl); -} - -static int tegra_i2s_trigger(struct snd_pcm_substream *substream, int cmd, - struct snd_soc_dai *dai) -{ - struct tegra_i2s *i2s = snd_soc_dai_get_drvdata(dai); - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - case SNDRV_PCM_TRIGGER_RESUME: - if (!i2s->clk_refs) - clk_enable(i2s->clk_i2s); - i2s->clk_refs++; - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - tegra_i2s_start_playback(i2s); - else - tegra_i2s_start_capture(i2s); - break; - case SNDRV_PCM_TRIGGER_STOP: - case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - case SNDRV_PCM_TRIGGER_SUSPEND: - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - tegra_i2s_stop_playback(i2s); - else - tegra_i2s_stop_capture(i2s); - i2s->clk_refs--; - if (!i2s->clk_refs) - clk_disable(i2s->clk_i2s); - break; - default: - return -EINVAL; - } - - return 0; -} - -static int tegra_i2s_probe(struct snd_soc_dai *dai) -{ - struct tegra_i2s * i2s = snd_soc_dai_get_drvdata(dai); - - dai->capture_dma_data = &i2s->capture_dma_data; - dai->playback_dma_data = &i2s->playback_dma_data; - - return 0; -} - -static const struct snd_soc_dai_ops tegra_i2s_dai_ops = { - .set_fmt = tegra_i2s_set_fmt, - .hw_params = tegra_i2s_hw_params, - .trigger = tegra_i2s_trigger, -}; - -static const struct snd_soc_dai_driver tegra_i2s_dai_template = { - .probe = tegra_i2s_probe, - .playback = { - .channels_min = 2, - .channels_max = 2, - .rates = SNDRV_PCM_RATE_8000_96000, - .formats = SNDRV_PCM_FMTBIT_S16_LE, - }, - .capture = { - .channels_min = 2, - .channels_max = 2, - .rates = SNDRV_PCM_RATE_8000_96000, - .formats = SNDRV_PCM_FMTBIT_S16_LE, - }, - .ops = &tegra_i2s_dai_ops, - .symmetric_rates = 1, -}; - -static __devinit int tegra_i2s_platform_probe(struct platform_device *pdev) -{ - struct tegra_i2s * i2s; - struct resource *mem, *memregion, *dmareq; - u32 of_dma[2]; - u32 dma_ch; - int ret; - - i2s = devm_kzalloc(&pdev->dev, sizeof(struct tegra_i2s), GFP_KERNEL); - if (!i2s) { - dev_err(&pdev->dev, "Can't allocate tegra_i2s\n"); - ret = -ENOMEM; - goto err; - } - dev_set_drvdata(&pdev->dev, i2s); - - i2s->dai = tegra_i2s_dai_template; - i2s->dai.name = dev_name(&pdev->dev); - - i2s->clk_i2s = clk_get(&pdev->dev, NULL); - if (IS_ERR(i2s->clk_i2s)) { - dev_err(&pdev->dev, "Can't retrieve i2s clock\n"); - ret = PTR_ERR(i2s->clk_i2s); - goto err; - } - - mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!mem) { - dev_err(&pdev->dev, "No memory resource\n"); - ret = -ENODEV; - goto err_clk_put; - } - - dmareq = platform_get_resource(pdev, IORESOURCE_DMA, 0); - if (!dmareq) { - if (of_property_read_u32_array(pdev->dev.of_node, - "nvidia,dma-request-selector", - of_dma, 2) < 0) { - dev_err(&pdev->dev, "No DMA resource\n"); - ret = -ENODEV; - goto err_clk_put; - } - dma_ch = of_dma[1]; - } else { - dma_ch = dmareq->start; - } - - memregion = devm_request_mem_region(&pdev->dev, mem->start, - resource_size(mem), DRV_NAME); - if (!memregion) { - dev_err(&pdev->dev, "Memory region already claimed\n"); - ret = -EBUSY; - goto err_clk_put; - } - - i2s->regs = devm_ioremap(&pdev->dev, mem->start, resource_size(mem)); - if (!i2s->regs) { - dev_err(&pdev->dev, "ioremap failed\n"); - ret = -ENOMEM; - goto err_clk_put; - } - - i2s->capture_dma_data.addr = mem->start + TEGRA_I2S_FIFO2; - i2s->capture_dma_data.wrap = 4; - i2s->capture_dma_data.width = 32; - i2s->capture_dma_data.req_sel = dma_ch; - - i2s->playback_dma_data.addr = mem->start + TEGRA_I2S_FIFO1; - i2s->playback_dma_data.wrap = 4; - i2s->playback_dma_data.width = 32; - i2s->playback_dma_data.req_sel = dma_ch; - - i2s->reg_ctrl = TEGRA_I2S_CTRL_FIFO_FORMAT_PACKED; - - ret = snd_soc_register_dai(&pdev->dev, &i2s->dai); - if (ret) { - dev_err(&pdev->dev, "Could not register DAI: %d\n", ret); - ret = -ENOMEM; - goto err_clk_put; - } - - tegra_i2s_debug_add(i2s); - - return 0; - -err_clk_put: - clk_put(i2s->clk_i2s); -err: - return ret; -} - -static int __devexit tegra_i2s_platform_remove(struct platform_device *pdev) -{ - struct tegra_i2s *i2s = dev_get_drvdata(&pdev->dev); - - snd_soc_unregister_dai(&pdev->dev); - - tegra_i2s_debug_remove(i2s); - - clk_put(i2s->clk_i2s); - - return 0; -} - -static const struct of_device_id tegra_i2s_of_match[] __devinitconst = { - { .compatible = "nvidia,tegra20-i2s", }, - {}, -}; - -static struct platform_driver tegra_i2s_driver = { - .driver = { - .name = DRV_NAME, - .owner = THIS_MODULE, - .of_match_table = tegra_i2s_of_match, - }, - .probe = tegra_i2s_platform_probe, - .remove = __devexit_p(tegra_i2s_platform_remove), -}; -module_platform_driver(tegra_i2s_driver); - -MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>"); -MODULE_DESCRIPTION("Tegra I2S ASoC driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:" DRV_NAME); -MODULE_DEVICE_TABLE(of, tegra_i2s_of_match); diff --git a/sound/soc/tegra/tegra_i2s.h b/sound/soc/tegra/tegra_i2s.h deleted file mode 100644 index 15ce1e2e8bde..000000000000 --- a/sound/soc/tegra/tegra_i2s.h +++ /dev/null @@ -1,166 +0,0 @@ -/* - * tegra_i2s.h - Definitions for Tegra I2S driver - * - * Author: Stephen Warren <swarren@nvidia.com> - * Copyright (C) 2010 - NVIDIA, Inc. - * - * Based on code copyright/by: - * - * Copyright (c) 2009-2010, NVIDIA Corporation. - * Scott Peterson <speterson@nvidia.com> - * - * Copyright (C) 2010 Google, Inc. - * Iliyan Malchev <malchev@google.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * - */ - -#ifndef __TEGRA_I2S_H__ -#define __TEGRA_I2S_H__ - -#include "tegra_pcm.h" - -/* Register offsets from TEGRA_I2S1_BASE and TEGRA_I2S2_BASE */ - -#define TEGRA_I2S_CTRL 0x00 -#define TEGRA_I2S_STATUS 0x04 -#define TEGRA_I2S_TIMING 0x08 -#define TEGRA_I2S_FIFO_SCR 0x0c -#define TEGRA_I2S_PCM_CTRL 0x10 -#define TEGRA_I2S_NW_CTRL 0x14 -#define TEGRA_I2S_TDM_CTRL 0x20 -#define TEGRA_I2S_TDM_TX_RX_CTRL 0x24 -#define TEGRA_I2S_FIFO1 0x40 -#define TEGRA_I2S_FIFO2 0x80 - -/* Fields in TEGRA_I2S_CTRL */ - -#define TEGRA_I2S_CTRL_FIFO2_TX_ENABLE (1 << 30) -#define TEGRA_I2S_CTRL_FIFO1_ENABLE (1 << 29) -#define TEGRA_I2S_CTRL_FIFO2_ENABLE (1 << 28) -#define TEGRA_I2S_CTRL_FIFO1_RX_ENABLE (1 << 27) -#define TEGRA_I2S_CTRL_FIFO_LPBK_ENABLE (1 << 26) -#define TEGRA_I2S_CTRL_MASTER_ENABLE (1 << 25) - -#define TEGRA_I2S_LRCK_LEFT_LOW 0 -#define TEGRA_I2S_LRCK_RIGHT_LOW 1 - -#define TEGRA_I2S_CTRL_LRCK_SHIFT 24 -#define TEGRA_I2S_CTRL_LRCK_MASK (1 << TEGRA_I2S_CTRL_LRCK_SHIFT) -#define TEGRA_I2S_CTRL_LRCK_L_LOW (TEGRA_I2S_LRCK_LEFT_LOW << TEGRA_I2S_CTRL_LRCK_SHIFT) -#define TEGRA_I2S_CTRL_LRCK_R_LOW (TEGRA_I2S_LRCK_RIGHT_LOW << TEGRA_I2S_CTRL_LRCK_SHIFT) - -#define TEGRA_I2S_BIT_FORMAT_I2S 0 -#define TEGRA_I2S_BIT_FORMAT_RJM 1 -#define TEGRA_I2S_BIT_FORMAT_LJM 2 -#define TEGRA_I2S_BIT_FORMAT_DSP 3 - -#define TEGRA_I2S_CTRL_BIT_FORMAT_SHIFT 10 -#define TEGRA_I2S_CTRL_BIT_FORMAT_MASK (3 << TEGRA_I2S_CTRL_BIT_FORMAT_SHIFT) -#define TEGRA_I2S_CTRL_BIT_FORMAT_I2S (TEGRA_I2S_BIT_FORMAT_I2S << TEGRA_I2S_CTRL_BIT_FORMAT_SHIFT) -#define TEGRA_I2S_CTRL_BIT_FORMAT_RJM (TEGRA_I2S_BIT_FORMAT_RJM << TEGRA_I2S_CTRL_BIT_FORMAT_SHIFT) -#define TEGRA_I2S_CTRL_BIT_FORMAT_LJM (TEGRA_I2S_BIT_FORMAT_LJM << TEGRA_I2S_CTRL_BIT_FORMAT_SHIFT) -#define TEGRA_I2S_CTRL_BIT_FORMAT_DSP (TEGRA_I2S_BIT_FORMAT_DSP << TEGRA_I2S_CTRL_BIT_FORMAT_SHIFT) - -#define TEGRA_I2S_BIT_SIZE_16 0 -#define TEGRA_I2S_BIT_SIZE_20 1 -#define TEGRA_I2S_BIT_SIZE_24 2 -#define TEGRA_I2S_BIT_SIZE_32 3 - -#define TEGRA_I2S_CTRL_BIT_SIZE_SHIFT 8 -#define TEGRA_I2S_CTRL_BIT_SIZE_MASK (3 << TEGRA_I2S_CTRL_BIT_SIZE_SHIFT) -#define TEGRA_I2S_CTRL_BIT_SIZE_16 (TEGRA_I2S_BIT_SIZE_16 << TEGRA_I2S_CTRL_BIT_SIZE_SHIFT) -#define TEGRA_I2S_CTRL_BIT_SIZE_20 (TEGRA_I2S_BIT_SIZE_20 << TEGRA_I2S_CTRL_BIT_SIZE_SHIFT) -#define TEGRA_I2S_CTRL_BIT_SIZE_24 (TEGRA_I2S_BIT_SIZE_24 << TEGRA_I2S_CTRL_BIT_SIZE_SHIFT) -#define TEGRA_I2S_CTRL_BIT_SIZE_32 (TEGRA_I2S_BIT_SIZE_32 << TEGRA_I2S_CTRL_BIT_SIZE_SHIFT) - -#define TEGRA_I2S_FIFO_16_LSB 0 -#define TEGRA_I2S_FIFO_20_LSB 1 -#define TEGRA_I2S_FIFO_24_LSB 2 -#define TEGRA_I2S_FIFO_32 3 -#define TEGRA_I2S_FIFO_PACKED 7 - -#define TEGRA_I2S_CTRL_FIFO_FORMAT_SHIFT 4 -#define TEGRA_I2S_CTRL_FIFO_FORMAT_MASK (7 << TEGRA_I2S_CTRL_FIFO_FORMAT_SHIFT) -#define TEGRA_I2S_CTRL_FIFO_FORMAT_16_LSB (TEGRA_I2S_FIFO_16_LSB << TEGRA_I2S_CTRL_FIFO_FORMAT_SHIFT) -#define TEGRA_I2S_CTRL_FIFO_FORMAT_20_LSB (TEGRA_I2S_FIFO_20_LSB << TEGRA_I2S_CTRL_FIFO_FORMAT_SHIFT) -#define TEGRA_I2S_CTRL_FIFO_FORMAT_24_LSB (TEGRA_I2S_FIFO_24_LSB << TEGRA_I2S_CTRL_FIFO_FORMAT_SHIFT) -#define TEGRA_I2S_CTRL_FIFO_FORMAT_32 (TEGRA_I2S_FIFO_32 << TEGRA_I2S_CTRL_FIFO_FORMAT_SHIFT) -#define TEGRA_I2S_CTRL_FIFO_FORMAT_PACKED (TEGRA_I2S_FIFO_PACKED << TEGRA_I2S_CTRL_FIFO_FORMAT_SHIFT) - -#define TEGRA_I2S_CTRL_IE_FIFO1_ERR (1 << 3) -#define TEGRA_I2S_CTRL_IE_FIFO2_ERR (1 << 2) -#define TEGRA_I2S_CTRL_QE_FIFO1 (1 << 1) -#define TEGRA_I2S_CTRL_QE_FIFO2 (1 << 0) - -/* Fields in TEGRA_I2S_STATUS */ - -#define TEGRA_I2S_STATUS_FIFO1_RDY (1 << 31) -#define TEGRA_I2S_STATUS_FIFO2_RDY (1 << 30) -#define TEGRA_I2S_STATUS_FIFO1_BSY (1 << 29) -#define TEGRA_I2S_STATUS_FIFO2_BSY (1 << 28) -#define TEGRA_I2S_STATUS_FIFO1_ERR (1 << 3) -#define TEGRA_I2S_STATUS_FIFO2_ERR (1 << 2) -#define TEGRA_I2S_STATUS_QS_FIFO1 (1 << 1) -#define TEGRA_I2S_STATUS_QS_FIFO2 (1 << 0) - -/* Fields in TEGRA_I2S_TIMING */ - -#define TEGRA_I2S_TIMING_NON_SYM_ENABLE (1 << 12) -#define TEGRA_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT 0 -#define TEGRA_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US 0x7fff -#define TEGRA_I2S_TIMING_CHANNEL_BIT_COUNT_MASK (TEGRA_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US << TEGRA_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT) - -/* Fields in TEGRA_I2S_FIFO_SCR */ - -#define TEGRA_I2S_FIFO_SCR_FIFO2_FULL_EMPTY_COUNT_SHIFT 24 -#define TEGRA_I2S_FIFO_SCR_FIFO1_FULL_EMPTY_COUNT_SHIFT 16 -#define TEGRA_I2S_FIFO_SCR_FIFO_FULL_EMPTY_COUNT_MASK 0x3f - -#define TEGRA_I2S_FIFO_SCR_FIFO2_CLR (1 << 12) -#define TEGRA_I2S_FIFO_SCR_FIFO1_CLR (1 << 8) - -#define TEGRA_I2S_FIFO_ATN_LVL_ONE_SLOT 0 -#define TEGRA_I2S_FIFO_ATN_LVL_FOUR_SLOTS 1 -#define TEGRA_I2S_FIFO_ATN_LVL_EIGHT_SLOTS 2 -#define TEGRA_I2S_FIFO_ATN_LVL_TWELVE_SLOTS 3 - -#define TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT 4 -#define TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_MASK (3 << TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT) -#define TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_ONE_SLOT (TEGRA_I2S_FIFO_ATN_LVL_ONE_SLOT << TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT) -#define TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_FOUR_SLOTS (TEGRA_I2S_FIFO_ATN_LVL_FOUR_SLOTS << TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT) -#define TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_EIGHT_SLOTS (TEGRA_I2S_FIFO_ATN_LVL_EIGHT_SLOTS << TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT) -#define TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_TWELVE_SLOTS (TEGRA_I2S_FIFO_ATN_LVL_TWELVE_SLOTS << TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT) - -#define TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT 0 -#define TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_MASK (3 << TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT) -#define TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_ONE_SLOT (TEGRA_I2S_FIFO_ATN_LVL_ONE_SLOT << TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT) -#define TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_FOUR_SLOTS (TEGRA_I2S_FIFO_ATN_LVL_FOUR_SLOTS << TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT) -#define TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_EIGHT_SLOTS (TEGRA_I2S_FIFO_ATN_LVL_EIGHT_SLOTS << TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT) -#define TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_TWELVE_SLOTS (TEGRA_I2S_FIFO_ATN_LVL_TWELVE_SLOTS << TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT) - -struct tegra_i2s { - struct snd_soc_dai_driver dai; - struct clk *clk_i2s; - int clk_refs; - struct tegra_pcm_dma_params capture_dma_data; - struct tegra_pcm_dma_params playback_dma_data; - void __iomem *regs; - struct dentry *debug; - u32 reg_ctrl; -}; - -#endif diff --git a/sound/soc/tegra/tegra_pcm.c b/sound/soc/tegra/tegra_pcm.c index 8b4457137c7c..127348dc09b1 100644 --- a/sound/soc/tegra/tegra_pcm.c +++ b/sound/soc/tegra/tegra_pcm.c @@ -2,7 +2,7 @@ * tegra_pcm.c - Tegra PCM driver * * Author: Stephen Warren <swarren@nvidia.com> - * Copyright (C) 2010 - NVIDIA, Inc. + * Copyright (C) 2010,2012 - NVIDIA, Inc. * * Based on code copyright/by: * @@ -29,8 +29,8 @@ * */ -#include <linux/module.h> #include <linux/dma-mapping.h> +#include <linux/module.h> #include <linux/slab.h> #include <sound/core.h> #include <sound/pcm.h> @@ -39,8 +39,6 @@ #include "tegra_pcm.h" -#define DRV_NAME "tegra-pcm-audio" - static const struct snd_pcm_hardware tegra_pcm_hardware = { .info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | @@ -372,28 +370,18 @@ static struct snd_soc_platform_driver tegra_pcm_platform = { .pcm_free = tegra_pcm_free, }; -static int __devinit tegra_pcm_platform_probe(struct platform_device *pdev) +int __devinit tegra_pcm_platform_register(struct device *dev) { - return snd_soc_register_platform(&pdev->dev, &tegra_pcm_platform); + return snd_soc_register_platform(dev, &tegra_pcm_platform); } +EXPORT_SYMBOL_GPL(tegra_pcm_platform_register); -static int __devexit tegra_pcm_platform_remove(struct platform_device *pdev) +void __devexit tegra_pcm_platform_unregister(struct device *dev) { - snd_soc_unregister_platform(&pdev->dev); - return 0; + snd_soc_unregister_platform(dev); } - -static struct platform_driver tegra_pcm_driver = { - .driver = { - .name = DRV_NAME, - .owner = THIS_MODULE, - }, - .probe = tegra_pcm_platform_probe, - .remove = __devexit_p(tegra_pcm_platform_remove), -}; -module_platform_driver(tegra_pcm_driver); +EXPORT_SYMBOL_GPL(tegra_pcm_platform_unregister); MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>"); MODULE_DESCRIPTION("Tegra PCM ASoC driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:" DRV_NAME); diff --git a/sound/soc/tegra/tegra_pcm.h b/sound/soc/tegra/tegra_pcm.h index dbb90339fe0d..985d418a35e7 100644 --- a/sound/soc/tegra/tegra_pcm.h +++ b/sound/soc/tegra/tegra_pcm.h @@ -2,7 +2,7 @@ * tegra_pcm.h - Definitions for Tegra PCM driver * * Author: Stephen Warren <swarren@nvidia.com> - * Copyright (C) 2010 - NVIDIA, Inc. + * Copyright (C) 2010,2012 - NVIDIA, Inc. * * Based on code copyright/by: * @@ -52,4 +52,7 @@ struct tegra_runtime_data { struct tegra_dma_channel *dma_chan; }; +int tegra_pcm_platform_register(struct device *dev); +void tegra_pcm_platform_unregister(struct device *dev); + #endif diff --git a/sound/soc/tegra/tegra_spdif.c b/sound/soc/tegra/tegra_spdif.c deleted file mode 100644 index 9ff2c601445f..000000000000 --- a/sound/soc/tegra/tegra_spdif.c +++ /dev/null @@ -1,364 +0,0 @@ -/* - * tegra_spdif.c - Tegra SPDIF driver - * - * Author: Stephen Warren <swarren@nvidia.com> - * Copyright (C) 2011 - NVIDIA, Inc. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * - */ - -#include <linux/clk.h> -#include <linux/module.h> -#include <linux/debugfs.h> -#include <linux/device.h> -#include <linux/platform_device.h> -#include <linux/seq_file.h> -#include <linux/slab.h> -#include <linux/io.h> -#include <mach/iomap.h> -#include <sound/core.h> -#include <sound/pcm.h> -#include <sound/pcm_params.h> -#include <sound/soc.h> - -#include "tegra_spdif.h" - -#define DRV_NAME "tegra-spdif" - -static inline void tegra_spdif_write(struct tegra_spdif *spdif, u32 reg, - u32 val) -{ - __raw_writel(val, spdif->regs + reg); -} - -static inline u32 tegra_spdif_read(struct tegra_spdif *spdif, u32 reg) -{ - return __raw_readl(spdif->regs + reg); -} - -#ifdef CONFIG_DEBUG_FS -static int tegra_spdif_show(struct seq_file *s, void *unused) -{ -#define REG(r) { r, #r } - static const struct { - int offset; - const char *name; - } regs[] = { - REG(TEGRA_SPDIF_CTRL), - REG(TEGRA_SPDIF_STATUS), - REG(TEGRA_SPDIF_STROBE_CTRL), - REG(TEGRA_SPDIF_DATA_FIFO_CSR), - REG(TEGRA_SPDIF_CH_STA_RX_A), - REG(TEGRA_SPDIF_CH_STA_RX_B), - REG(TEGRA_SPDIF_CH_STA_RX_C), - REG(TEGRA_SPDIF_CH_STA_RX_D), - REG(TEGRA_SPDIF_CH_STA_RX_E), - REG(TEGRA_SPDIF_CH_STA_RX_F), - REG(TEGRA_SPDIF_CH_STA_TX_A), - REG(TEGRA_SPDIF_CH_STA_TX_B), - REG(TEGRA_SPDIF_CH_STA_TX_C), - REG(TEGRA_SPDIF_CH_STA_TX_D), - REG(TEGRA_SPDIF_CH_STA_TX_E), - REG(TEGRA_SPDIF_CH_STA_TX_F), - }; -#undef REG - - struct tegra_spdif *spdif = s->private; - int i; - - clk_enable(spdif->clk_spdif_out); - - for (i = 0; i < ARRAY_SIZE(regs); i++) { - u32 val = tegra_spdif_read(spdif, regs[i].offset); - seq_printf(s, "%s = %08x\n", regs[i].name, val); - } - - clk_disable(spdif->clk_spdif_out); - - return 0; -} - -static int tegra_spdif_debug_open(struct inode *inode, struct file *file) -{ - return single_open(file, tegra_spdif_show, inode->i_private); -} - -static const struct file_operations tegra_spdif_debug_fops = { - .open = tegra_spdif_debug_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static void tegra_spdif_debug_add(struct tegra_spdif *spdif) -{ - spdif->debug = debugfs_create_file(DRV_NAME, S_IRUGO, - snd_soc_debugfs_root, spdif, - &tegra_spdif_debug_fops); -} - -static void tegra_spdif_debug_remove(struct tegra_spdif *spdif) -{ - if (spdif->debug) - debugfs_remove(spdif->debug); -} -#else -static inline void tegra_spdif_debug_add(struct tegra_spdif *spdif) -{ -} - -static inline void tegra_spdif_debug_remove(struct tegra_spdif *spdif) -{ -} -#endif - -static int tegra_spdif_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params, - struct snd_soc_dai *dai) -{ - struct device *dev = substream->pcm->card->dev; - struct tegra_spdif *spdif = snd_soc_dai_get_drvdata(dai); - int ret, spdifclock; - - spdif->reg_ctrl &= ~TEGRA_SPDIF_CTRL_PACK; - spdif->reg_ctrl &= ~TEGRA_SPDIF_CTRL_BIT_MODE_MASK; - switch (params_format(params)) { - case SNDRV_PCM_FORMAT_S16_LE: - spdif->reg_ctrl |= TEGRA_SPDIF_CTRL_PACK; - spdif->reg_ctrl |= TEGRA_SPDIF_CTRL_BIT_MODE_16BIT; - break; - default: - return -EINVAL; - } - - switch (params_rate(params)) { - case 32000: - spdifclock = 4096000; - break; - case 44100: - spdifclock = 5644800; - break; - case 48000: - spdifclock = 6144000; - break; - case 88200: - spdifclock = 11289600; - break; - case 96000: - spdifclock = 12288000; - break; - case 176400: - spdifclock = 22579200; - break; - case 192000: - spdifclock = 24576000; - break; - default: - return -EINVAL; - } - - ret = clk_set_rate(spdif->clk_spdif_out, spdifclock); - if (ret) { - dev_err(dev, "Can't set SPDIF clock rate: %d\n", ret); - return ret; - } - - return 0; -} - -static void tegra_spdif_start_playback(struct tegra_spdif *spdif) -{ - spdif->reg_ctrl |= TEGRA_SPDIF_CTRL_TX_EN; - tegra_spdif_write(spdif, TEGRA_SPDIF_CTRL, spdif->reg_ctrl); -} - -static void tegra_spdif_stop_playback(struct tegra_spdif *spdif) -{ - spdif->reg_ctrl &= ~TEGRA_SPDIF_CTRL_TX_EN; - tegra_spdif_write(spdif, TEGRA_SPDIF_CTRL, spdif->reg_ctrl); -} - -static int tegra_spdif_trigger(struct snd_pcm_substream *substream, int cmd, - struct snd_soc_dai *dai) -{ - struct tegra_spdif *spdif = snd_soc_dai_get_drvdata(dai); - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - case SNDRV_PCM_TRIGGER_RESUME: - if (!spdif->clk_refs) - clk_enable(spdif->clk_spdif_out); - spdif->clk_refs++; - tegra_spdif_start_playback(spdif); - break; - case SNDRV_PCM_TRIGGER_STOP: - case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - case SNDRV_PCM_TRIGGER_SUSPEND: - tegra_spdif_stop_playback(spdif); - spdif->clk_refs--; - if (!spdif->clk_refs) - clk_disable(spdif->clk_spdif_out); - break; - default: - return -EINVAL; - } - - return 0; -} - -static int tegra_spdif_probe(struct snd_soc_dai *dai) -{ - struct tegra_spdif *spdif = snd_soc_dai_get_drvdata(dai); - - dai->capture_dma_data = NULL; - dai->playback_dma_data = &spdif->playback_dma_data; - - return 0; -} - -static const struct snd_soc_dai_ops tegra_spdif_dai_ops = { - .hw_params = tegra_spdif_hw_params, - .trigger = tegra_spdif_trigger, -}; - -static struct snd_soc_dai_driver tegra_spdif_dai = { - .name = DRV_NAME, - .probe = tegra_spdif_probe, - .playback = { - .channels_min = 2, - .channels_max = 2, - .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | - SNDRV_PCM_RATE_48000, - .formats = SNDRV_PCM_FMTBIT_S16_LE, - }, - .ops = &tegra_spdif_dai_ops, -}; - -static __devinit int tegra_spdif_platform_probe(struct platform_device *pdev) -{ - struct tegra_spdif *spdif; - struct resource *mem, *memregion, *dmareq; - int ret; - - spdif = kzalloc(sizeof(struct tegra_spdif), GFP_KERNEL); - if (!spdif) { - dev_err(&pdev->dev, "Can't allocate tegra_spdif\n"); - ret = -ENOMEM; - goto exit; - } - dev_set_drvdata(&pdev->dev, spdif); - - spdif->clk_spdif_out = clk_get(&pdev->dev, "spdif_out"); - if (IS_ERR(spdif->clk_spdif_out)) { - pr_err("Can't retrieve spdif clock\n"); - ret = PTR_ERR(spdif->clk_spdif_out); - goto err_free; - } - - mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!mem) { - dev_err(&pdev->dev, "No memory resource\n"); - ret = -ENODEV; - goto err_clk_put; - } - - dmareq = platform_get_resource(pdev, IORESOURCE_DMA, 0); - if (!dmareq) { - dev_err(&pdev->dev, "No DMA resource\n"); - ret = -ENODEV; - goto err_clk_put; - } - - memregion = request_mem_region(mem->start, resource_size(mem), - DRV_NAME); - if (!memregion) { - dev_err(&pdev->dev, "Memory region already claimed\n"); - ret = -EBUSY; - goto err_clk_put; - } - - spdif->regs = ioremap(mem->start, resource_size(mem)); - if (!spdif->regs) { - dev_err(&pdev->dev, "ioremap failed\n"); - ret = -ENOMEM; - goto err_release; - } - - spdif->playback_dma_data.addr = mem->start + TEGRA_SPDIF_DATA_OUT; - spdif->playback_dma_data.wrap = 4; - spdif->playback_dma_data.width = 32; - spdif->playback_dma_data.req_sel = dmareq->start; - - ret = snd_soc_register_dai(&pdev->dev, &tegra_spdif_dai); - if (ret) { - dev_err(&pdev->dev, "Could not register DAI: %d\n", ret); - ret = -ENOMEM; - goto err_unmap; - } - - tegra_spdif_debug_add(spdif); - - return 0; - -err_unmap: - iounmap(spdif->regs); -err_release: - release_mem_region(mem->start, resource_size(mem)); -err_clk_put: - clk_put(spdif->clk_spdif_out); -err_free: - kfree(spdif); -exit: - return ret; -} - -static int __devexit tegra_spdif_platform_remove(struct platform_device *pdev) -{ - struct tegra_spdif *spdif = dev_get_drvdata(&pdev->dev); - struct resource *res; - - snd_soc_unregister_dai(&pdev->dev); - - tegra_spdif_debug_remove(spdif); - - iounmap(spdif->regs); - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - release_mem_region(res->start, resource_size(res)); - - clk_put(spdif->clk_spdif_out); - - kfree(spdif); - - return 0; -} - -static struct platform_driver tegra_spdif_driver = { - .driver = { - .name = DRV_NAME, - .owner = THIS_MODULE, - }, - .probe = tegra_spdif_platform_probe, - .remove = __devexit_p(tegra_spdif_platform_remove), -}; - -module_platform_driver(tegra_spdif_driver); - -MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>"); -MODULE_DESCRIPTION("Tegra SPDIF ASoC driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:" DRV_NAME); diff --git a/sound/soc/tegra/tegra_spdif.h b/sound/soc/tegra/tegra_spdif.h deleted file mode 100644 index 2e03db430279..000000000000 --- a/sound/soc/tegra/tegra_spdif.h +++ /dev/null @@ -1,473 +0,0 @@ -/* - * tegra_spdif.h - Definitions for Tegra SPDIF driver - * - * Author: Stephen Warren <swarren@nvidia.com> - * Copyright (C) 2011 - NVIDIA, Inc. - * - * Based on code copyright/by: - * Copyright (c) 2008-2009, NVIDIA Corporation - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * - */ - -#ifndef __TEGRA_SPDIF_H__ -#define __TEGRA_SPDIF_H__ - -#include "tegra_pcm.h" - -/* Offsets from TEGRA_SPDIF_BASE */ - -#define TEGRA_SPDIF_CTRL 0x0 -#define TEGRA_SPDIF_STATUS 0x4 -#define TEGRA_SPDIF_STROBE_CTRL 0x8 -#define TEGRA_SPDIF_DATA_FIFO_CSR 0x0C -#define TEGRA_SPDIF_DATA_OUT 0x40 -#define TEGRA_SPDIF_DATA_IN 0x80 -#define TEGRA_SPDIF_CH_STA_RX_A 0x100 -#define TEGRA_SPDIF_CH_STA_RX_B 0x104 -#define TEGRA_SPDIF_CH_STA_RX_C 0x108 -#define TEGRA_SPDIF_CH_STA_RX_D 0x10C -#define TEGRA_SPDIF_CH_STA_RX_E 0x110 -#define TEGRA_SPDIF_CH_STA_RX_F 0x114 -#define TEGRA_SPDIF_CH_STA_TX_A 0x140 -#define TEGRA_SPDIF_CH_STA_TX_B 0x144 -#define TEGRA_SPDIF_CH_STA_TX_C 0x148 -#define TEGRA_SPDIF_CH_STA_TX_D 0x14C -#define TEGRA_SPDIF_CH_STA_TX_E 0x150 -#define TEGRA_SPDIF_CH_STA_TX_F 0x154 -#define TEGRA_SPDIF_USR_STA_RX_A 0x180 -#define TEGRA_SPDIF_USR_DAT_TX_A 0x1C0 - -/* Fields in TEGRA_SPDIF_CTRL */ - -/* Start capturing from 0=right, 1=left channel */ -#define TEGRA_SPDIF_CTRL_CAP_LC (1 << 30) - -/* SPDIF receiver(RX) enable */ -#define TEGRA_SPDIF_CTRL_RX_EN (1 << 29) - -/* SPDIF Transmitter(TX) enable */ -#define TEGRA_SPDIF_CTRL_TX_EN (1 << 28) - -/* Transmit Channel status */ -#define TEGRA_SPDIF_CTRL_TC_EN (1 << 27) - -/* Transmit user Data */ -#define TEGRA_SPDIF_CTRL_TU_EN (1 << 26) - -/* Interrupt on transmit error */ -#define TEGRA_SPDIF_CTRL_IE_TXE (1 << 25) - -/* Interrupt on receive error */ -#define TEGRA_SPDIF_CTRL_IE_RXE (1 << 24) - -/* Interrupt on invalid preamble */ -#define TEGRA_SPDIF_CTRL_IE_P (1 << 23) - -/* Interrupt on "B" preamble */ -#define TEGRA_SPDIF_CTRL_IE_B (1 << 22) - -/* Interrupt when block of channel status received */ -#define TEGRA_SPDIF_CTRL_IE_C (1 << 21) - -/* Interrupt when a valid information unit (IU) is received */ -#define TEGRA_SPDIF_CTRL_IE_U (1 << 20) - -/* Interrupt when RX user FIFO attention level is reached */ -#define TEGRA_SPDIF_CTRL_QE_RU (1 << 19) - -/* Interrupt when TX user FIFO attention level is reached */ -#define TEGRA_SPDIF_CTRL_QE_TU (1 << 18) - -/* Interrupt when RX data FIFO attention level is reached */ -#define TEGRA_SPDIF_CTRL_QE_RX (1 << 17) - -/* Interrupt when TX data FIFO attention level is reached */ -#define TEGRA_SPDIF_CTRL_QE_TX (1 << 16) - -/* Loopback test mode enable */ -#define TEGRA_SPDIF_CTRL_LBK_EN (1 << 15) - -/* - * Pack data mode: - * 0 = Single data (16 bit needs to be padded to match the - * interface data bit size). - * 1 = Packeted left/right channel data into a single word. - */ -#define TEGRA_SPDIF_CTRL_PACK (1 << 14) - -/* - * 00 = 16bit data - * 01 = 20bit data - * 10 = 24bit data - * 11 = raw data - */ -#define TEGRA_SPDIF_BIT_MODE_16BIT 0 -#define TEGRA_SPDIF_BIT_MODE_20BIT 1 -#define TEGRA_SPDIF_BIT_MODE_24BIT 2 -#define TEGRA_SPDIF_BIT_MODE_RAW 3 - -#define TEGRA_SPDIF_CTRL_BIT_MODE_SHIFT 12 -#define TEGRA_SPDIF_CTRL_BIT_MODE_MASK (3 << TEGRA_SPDIF_CTRL_BIT_MODE_SHIFT) -#define TEGRA_SPDIF_CTRL_BIT_MODE_16BIT (TEGRA_SPDIF_BIT_MODE_16BIT << TEGRA_SPDIF_CTRL_BIT_MODE_SHIFT) -#define TEGRA_SPDIF_CTRL_BIT_MODE_20BIT (TEGRA_SPDIF_BIT_MODE_20BIT << TEGRA_SPDIF_CTRL_BIT_MODE_SHIFT) -#define TEGRA_SPDIF_CTRL_BIT_MODE_24BIT (TEGRA_SPDIF_BIT_MODE_24BIT << TEGRA_SPDIF_CTRL_BIT_MODE_SHIFT) -#define TEGRA_SPDIF_CTRL_BIT_MODE_RAW (TEGRA_SPDIF_BIT_MODE_RAW << TEGRA_SPDIF_CTRL_BIT_MODE_SHIFT) - -/* Fields in TEGRA_SPDIF_STATUS */ - -/* - * Note: IS_P, IS_B, IS_C, and IS_U are sticky bits. Software must - * write a 1 to the corresponding bit location to clear the status. - */ - -/* - * Receiver(RX) shifter is busy receiving data. - * This bit is asserted when the receiver first locked onto the - * preamble of the data stream after RX_EN is asserted. This bit is - * deasserted when either, - * (a) the end of a frame is reached after RX_EN is deeasserted, or - * (b) the SPDIF data stream becomes inactive. - */ -#define TEGRA_SPDIF_STATUS_RX_BSY (1 << 29) - -/* - * Transmitter(TX) shifter is busy transmitting data. - * This bit is asserted when TX_EN is asserted. - * This bit is deasserted when the end of a frame is reached after - * TX_EN is deasserted. - */ -#define TEGRA_SPDIF_STATUS_TX_BSY (1 << 28) - -/* - * TX is busy shifting out channel status. - * This bit is asserted when both TX_EN and TC_EN are asserted and - * data from CH_STA_TX_A register is loaded into the internal shifter. - * This bit is deasserted when either, - * (a) the end of a frame is reached after TX_EN is deasserted, or - * (b) CH_STA_TX_F register is loaded into the internal shifter. - */ -#define TEGRA_SPDIF_STATUS_TC_BSY (1 << 27) - -/* - * TX User data FIFO busy. - * This bit is asserted when TX_EN and TXU_EN are asserted and - * there's data in the TX user FIFO. This bit is deassert when either, - * (a) the end of a frame is reached after TX_EN is deasserted, or - * (b) there's no data left in the TX user FIFO. - */ -#define TEGRA_SPDIF_STATUS_TU_BSY (1 << 26) - -/* TX FIFO Underrun error status */ -#define TEGRA_SPDIF_STATUS_TX_ERR (1 << 25) - -/* RX FIFO Overrun error status */ -#define TEGRA_SPDIF_STATUS_RX_ERR (1 << 24) - -/* Preamble status: 0=Preamble OK, 1=bad/missing preamble */ -#define TEGRA_SPDIF_STATUS_IS_P (1 << 23) - -/* B-preamble detection status: 0=not detected, 1=B-preamble detected */ -#define TEGRA_SPDIF_STATUS_IS_B (1 << 22) - -/* - * RX channel block data receive status: - * 0=entire block not recieved yet. - * 1=received entire block of channel status, - */ -#define TEGRA_SPDIF_STATUS_IS_C (1 << 21) - -/* RX User Data Valid flag: 1=valid IU detected, 0 = no IU detected. */ -#define TEGRA_SPDIF_STATUS_IS_U (1 << 20) - -/* - * RX User FIFO Status: - * 1=attention level reached, 0=attention level not reached. - */ -#define TEGRA_SPDIF_STATUS_QS_RU (1 << 19) - -/* - * TX User FIFO Status: - * 1=attention level reached, 0=attention level not reached. - */ -#define TEGRA_SPDIF_STATUS_QS_TU (1 << 18) - -/* - * RX Data FIFO Status: - * 1=attention level reached, 0=attention level not reached. - */ -#define TEGRA_SPDIF_STATUS_QS_RX (1 << 17) - -/* - * TX Data FIFO Status: - * 1=attention level reached, 0=attention level not reached. - */ -#define TEGRA_SPDIF_STATUS_QS_TX (1 << 16) - -/* Fields in TEGRA_SPDIF_STROBE_CTRL */ - -/* - * Indicates the approximate number of detected SPDIFIN clocks within a - * bi-phase period. - */ -#define TEGRA_SPDIF_STROBE_CTRL_PERIOD_SHIFT 16 -#define TEGRA_SPDIF_STROBE_CTRL_PERIOD_MASK (0xff << TEGRA_SPDIF_STROBE_CTRL_PERIOD_SHIFT) - -/* Data strobe mode: 0=Auto-locked 1=Manual locked */ -#define TEGRA_SPDIF_STROBE_CTRL_STROBE (1 << 15) - -/* - * Manual data strobe time within the bi-phase clock period (in terms of - * the number of over-sampling clocks). - */ -#define TEGRA_SPDIF_STROBE_CTRL_DATA_STROBES_SHIFT 8 -#define TEGRA_SPDIF_STROBE_CTRL_DATA_STROBES_MASK (0x1f << TEGRA_SPDIF_STROBE_CTRL_DATA_STROBES_SHIFT) - -/* - * Manual SPDIFIN bi-phase clock period (in terms of the number of - * over-sampling clocks). - */ -#define TEGRA_SPDIF_STROBE_CTRL_CLOCK_PERIOD_SHIFT 0 -#define TEGRA_SPDIF_STROBE_CTRL_CLOCK_PERIOD_MASK (0x3f << TEGRA_SPDIF_STROBE_CTRL_CLOCK_PERIOD_SHIFT) - -/* Fields in SPDIF_DATA_FIFO_CSR */ - -/* Clear Receiver User FIFO (RX USR.FIFO) */ -#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_CLR (1 << 31) - -#define TEGRA_SPDIF_FIFO_ATN_LVL_U_ONE_SLOT 0 -#define TEGRA_SPDIF_FIFO_ATN_LVL_U_TWO_SLOTS 1 -#define TEGRA_SPDIF_FIFO_ATN_LVL_U_THREE_SLOTS 2 -#define TEGRA_SPDIF_FIFO_ATN_LVL_U_FOUR_SLOTS 3 - -/* RU FIFO attention level */ -#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT 29 -#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_MASK \ - (0x3 << TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT) -#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU1_WORD_FULL \ - (TEGRA_SPDIF_FIFO_ATN_LVL_U_ONE_SLOT << TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT) -#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU2_WORD_FULL \ - (TEGRA_SPDIF_FIFO_ATN_LVL_U_TWO_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT) -#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU3_WORD_FULL \ - (TEGRA_SPDIF_FIFO_ATN_LVL_U_THREE_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT) -#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU4_WORD_FULL \ - (TEGRA_SPDIF_FIFO_ATN_LVL_U_FOUR_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT) - -/* Number of RX USR.FIFO levels with valid data. */ -#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_FULL_COUNT_SHIFT 24 -#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_FULL_COUNT_MASK (0x1f << TEGRA_SPDIF_DATA_FIFO_CSR_RU_FULL_COUNT_SHIFT) - -/* Clear Transmitter User FIFO (TX USR.FIFO) */ -#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_CLR (1 << 23) - -/* TU FIFO attention level */ -#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT 21 -#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_MASK \ - (0x3 << TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT) -#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU1_WORD_FULL \ - (TEGRA_SPDIF_FIFO_ATN_LVL_U_ONE_SLOT << TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT) -#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU2_WORD_FULL \ - (TEGRA_SPDIF_FIFO_ATN_LVL_U_TWO_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT) -#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU3_WORD_FULL \ - (TEGRA_SPDIF_FIFO_ATN_LVL_U_THREE_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT) -#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU4_WORD_FULL \ - (TEGRA_SPDIF_FIFO_ATN_LVL_U_FOUR_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT) - -/* Number of TX USR.FIFO levels that could be filled. */ -#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_EMPTY_COUNT_SHIFT 16 -#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_EMPTY_COUNT_MASK (0x1f << SPDIF_DATA_FIFO_CSR_TU_EMPTY_COUNT_SHIFT) - -/* Clear Receiver Data FIFO (RX DATA.FIFO) */ -#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_CLR (1 << 15) - -#define TEGRA_SPDIF_FIFO_ATN_LVL_D_ONE_SLOT 0 -#define TEGRA_SPDIF_FIFO_ATN_LVL_D_FOUR_SLOTS 1 -#define TEGRA_SPDIF_FIFO_ATN_LVL_D_EIGHT_SLOTS 2 -#define TEGRA_SPDIF_FIFO_ATN_LVL_D_TWELVE_SLOTS 3 - -/* RU FIFO attention level */ -#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT 13 -#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_MASK \ - (0x3 << TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT) -#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU1_WORD_FULL \ - (TEGRA_SPDIF_FIFO_ATN_LVL_D_ONE_SLOT << TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT) -#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU4_WORD_FULL \ - (TEGRA_SPDIF_FIFO_ATN_LVL_D_FOUR_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT) -#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU8_WORD_FULL \ - (TEGRA_SPDIF_FIFO_ATN_LVL_D_EIGHT_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT) -#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU12_WORD_FULL \ - (TEGRA_SPDIF_FIFO_ATN_LVL_D_TWELVE_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT) - -/* Number of RX DATA.FIFO levels with valid data. */ -#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_FULL_COUNT_SHIFT 8 -#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_FULL_COUNT_MASK (0x1f << TEGRA_SPDIF_DATA_FIFO_CSR_RX_FULL_COUNT_SHIFT) - -/* Clear Transmitter Data FIFO (TX DATA.FIFO) */ -#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_CLR (1 << 7) - -/* TU FIFO attention level */ -#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT 5 -#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_MASK \ - (0x3 << TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT) -#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU1_WORD_FULL \ - (TEGRA_SPDIF_FIFO_ATN_LVL_D_ONE_SLOT << TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT) -#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU4_WORD_FULL \ - (TEGRA_SPDIF_FIFO_ATN_LVL_D_FOUR_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT) -#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU8_WORD_FULL \ - (TEGRA_SPDIF_FIFO_ATN_LVL_D_EIGHT_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT) -#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU12_WORD_FULL \ - (TEGRA_SPDIF_FIFO_ATN_LVL_D_TWELVE_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT) - -/* Number of TX DATA.FIFO levels that could be filled. */ -#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_EMPTY_COUNT_SHIFT 0 -#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_EMPTY_COUNT_MASK (0x1f << SPDIF_DATA_FIFO_CSR_TX_EMPTY_COUNT_SHIFT) - -/* Fields in TEGRA_SPDIF_DATA_OUT */ - -/* - * This register has 5 different formats: - * 16-bit (BIT_MODE=00, PACK=0) - * 20-bit (BIT_MODE=01, PACK=0) - * 24-bit (BIT_MODE=10, PACK=0) - * raw (BIT_MODE=11, PACK=0) - * 16-bit packed (BIT_MODE=00, PACK=1) - */ - -#define TEGRA_SPDIF_DATA_OUT_DATA_16_SHIFT 0 -#define TEGRA_SPDIF_DATA_OUT_DATA_16_MASK (0xffff << TEGRA_SPDIF_DATA_OUT_DATA_16_SHIFT) - -#define TEGRA_SPDIF_DATA_OUT_DATA_20_SHIFT 0 -#define TEGRA_SPDIF_DATA_OUT_DATA_20_MASK (0xfffff << TEGRA_SPDIF_DATA_OUT_DATA_20_SHIFT) - -#define TEGRA_SPDIF_DATA_OUT_DATA_24_SHIFT 0 -#define TEGRA_SPDIF_DATA_OUT_DATA_24_MASK (0xffffff << TEGRA_SPDIF_DATA_OUT_DATA_24_SHIFT) - -#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_P (1 << 31) -#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_C (1 << 30) -#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_U (1 << 29) -#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_V (1 << 28) - -#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_DATA_SHIFT 8 -#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_DATA_MASK (0xfffff << TEGRA_SPDIF_DATA_OUT_DATA_RAW_DATA_SHIFT) - -#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_AUX_SHIFT 4 -#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_AUX_MASK (0xf << TEGRA_SPDIF_DATA_OUT_DATA_RAW_AUX_SHIFT) - -#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_PREAMBLE_SHIFT 0 -#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_PREAMBLE_MASK (0xf << TEGRA_SPDIF_DATA_OUT_DATA_RAW_PREAMBLE_SHIFT) - -#define TEGRA_SPDIF_DATA_OUT_DATA_16_PACKED_RIGHT_SHIFT 16 -#define TEGRA_SPDIF_DATA_OUT_DATA_16_PACKED_RIGHT_MASK (0xffff << TEGRA_SPDIF_DATA_OUT_DATA_16_PACKED_RIGHT_SHIFT) - -#define TEGRA_SPDIF_DATA_OUT_DATA_16_PACKED_LEFT_SHIFT 0 -#define TEGRA_SPDIF_DATA_OUT_DATA_16_PACKED_LEFT_MASK (0xffff << TEGRA_SPDIF_DATA_OUT_DATA_16_PACKED_LEFT_SHIFT) - -/* Fields in TEGRA_SPDIF_DATA_IN */ - -/* - * This register has 5 different formats: - * 16-bit (BIT_MODE=00, PACK=0) - * 20-bit (BIT_MODE=01, PACK=0) - * 24-bit (BIT_MODE=10, PACK=0) - * raw (BIT_MODE=11, PACK=0) - * 16-bit packed (BIT_MODE=00, PACK=1) - * - * Bits 31:24 are common to all modes except 16-bit packed - */ - -#define TEGRA_SPDIF_DATA_IN_DATA_P (1 << 31) -#define TEGRA_SPDIF_DATA_IN_DATA_C (1 << 30) -#define TEGRA_SPDIF_DATA_IN_DATA_U (1 << 29) -#define TEGRA_SPDIF_DATA_IN_DATA_V (1 << 28) - -#define TEGRA_SPDIF_DATA_IN_DATA_PREAMBLE_SHIFT 24 -#define TEGRA_SPDIF_DATA_IN_DATA_PREAMBLE_MASK (0xf << TEGRA_SPDIF_DATA_IN_DATA_PREAMBLE_SHIFT) - -#define TEGRA_SPDIF_DATA_IN_DATA_16_SHIFT 0 -#define TEGRA_SPDIF_DATA_IN_DATA_16_MASK (0xffff << TEGRA_SPDIF_DATA_IN_DATA_16_SHIFT) - -#define TEGRA_SPDIF_DATA_IN_DATA_20_SHIFT 0 -#define TEGRA_SPDIF_DATA_IN_DATA_20_MASK (0xfffff << TEGRA_SPDIF_DATA_IN_DATA_20_SHIFT) - -#define TEGRA_SPDIF_DATA_IN_DATA_24_SHIFT 0 -#define TEGRA_SPDIF_DATA_IN_DATA_24_MASK (0xffffff << TEGRA_SPDIF_DATA_IN_DATA_24_SHIFT) - -#define TEGRA_SPDIF_DATA_IN_DATA_RAW_DATA_SHIFT 8 -#define TEGRA_SPDIF_DATA_IN_DATA_RAW_DATA_MASK (0xfffff << TEGRA_SPDIF_DATA_IN_DATA_RAW_DATA_SHIFT) - -#define TEGRA_SPDIF_DATA_IN_DATA_RAW_AUX_SHIFT 4 -#define TEGRA_SPDIF_DATA_IN_DATA_RAW_AUX_MASK (0xf << TEGRA_SPDIF_DATA_IN_DATA_RAW_AUX_SHIFT) - -#define TEGRA_SPDIF_DATA_IN_DATA_RAW_PREAMBLE_SHIFT 0 -#define TEGRA_SPDIF_DATA_IN_DATA_RAW_PREAMBLE_MASK (0xf << TEGRA_SPDIF_DATA_IN_DATA_RAW_PREAMBLE_SHIFT) - -#define TEGRA_SPDIF_DATA_IN_DATA_16_PACKED_RIGHT_SHIFT 16 -#define TEGRA_SPDIF_DATA_IN_DATA_16_PACKED_RIGHT_MASK (0xffff << TEGRA_SPDIF_DATA_IN_DATA_16_PACKED_RIGHT_SHIFT) - -#define TEGRA_SPDIF_DATA_IN_DATA_16_PACKED_LEFT_SHIFT 0 -#define TEGRA_SPDIF_DATA_IN_DATA_16_PACKED_LEFT_MASK (0xffff << TEGRA_SPDIF_DATA_IN_DATA_16_PACKED_LEFT_SHIFT) - -/* Fields in TEGRA_SPDIF_CH_STA_RX_A */ -/* Fields in TEGRA_SPDIF_CH_STA_RX_B */ -/* Fields in TEGRA_SPDIF_CH_STA_RX_C */ -/* Fields in TEGRA_SPDIF_CH_STA_RX_D */ -/* Fields in TEGRA_SPDIF_CH_STA_RX_E */ -/* Fields in TEGRA_SPDIF_CH_STA_RX_F */ - -/* - * The 6-word receive channel data page buffer holds a block (192 frames) of - * channel status information. The order of receive is from LSB to MSB - * bit, and from CH_STA_RX_A to CH_STA_RX_F then back to CH_STA_RX_A. - */ - -/* Fields in TEGRA_SPDIF_CH_STA_TX_A */ -/* Fields in TEGRA_SPDIF_CH_STA_TX_B */ -/* Fields in TEGRA_SPDIF_CH_STA_TX_C */ -/* Fields in TEGRA_SPDIF_CH_STA_TX_D */ -/* Fields in TEGRA_SPDIF_CH_STA_TX_E */ -/* Fields in TEGRA_SPDIF_CH_STA_TX_F */ - -/* - * The 6-word transmit channel data page buffer holds a block (192 frames) of - * channel status information. The order of transmission is from LSB to MSB - * bit, and from CH_STA_TX_A to CH_STA_TX_F then back to CH_STA_TX_A. - */ - -/* Fields in TEGRA_SPDIF_USR_STA_RX_A */ - -/* - * This 4-word deep FIFO receives user FIFO field information. The order of - * receive is from LSB to MSB bit. - */ - -/* Fields in TEGRA_SPDIF_USR_DAT_TX_A */ - -/* - * This 4-word deep FIFO transmits user FIFO field information. The order of - * transmission is from LSB to MSB bit. - */ - -struct tegra_spdif { - struct clk *clk_spdif_out; - int clk_refs; - struct tegra_pcm_dma_params capture_dma_data; - struct tegra_pcm_dma_params playback_dma_data; - void __iomem *regs; - struct dentry *debug; - u32 reg_ctrl; -}; - -#endif diff --git a/sound/soc/tegra/tegra_wm8903.c b/sound/soc/tegra/tegra_wm8903.c index 566655e23b7d..0b0df49d9d33 100644 --- a/sound/soc/tegra/tegra_wm8903.c +++ b/sound/soc/tegra/tegra_wm8903.c @@ -2,7 +2,7 @@ * tegra_wm8903.c - Tegra machine ASoC driver for boards using WM8903 codec. * * Author: Stephen Warren <swarren@nvidia.com> - * Copyright (C) 2010-2011 - NVIDIA, Inc. + * Copyright (C) 2010-2012 - NVIDIA, Inc. * * Based on code copyright/by: * @@ -46,9 +46,6 @@ #include "../codecs/wm8903.h" -#include "tegra_das.h" -#include "tegra_i2s.h" -#include "tegra_pcm.h" #include "tegra_asoc_utils.h" #define DRV_NAME "tegra-snd-wm8903" @@ -61,7 +58,6 @@ struct tegra_wm8903 { struct tegra_wm8903_platform_data pdata; - struct platform_device *pcm_dev; struct tegra_asoc_utils_data util_data; int gpio_requested; }; @@ -354,8 +350,8 @@ static struct snd_soc_dai_link tegra_wm8903_dai = { .name = "WM8903", .stream_name = "WM8903 PCM", .codec_name = "wm8903.0-001a", - .platform_name = "tegra-pcm-audio", - .cpu_dai_name = "tegra-i2s.0", + .platform_name = "tegra20-i2s.0", + .cpu_dai_name = "tegra20-i2s.0", .codec_dai_name = "wm8903-hifi", .init = tegra_wm8903_init, .ops = &tegra_wm8903_ops, @@ -392,7 +388,6 @@ static __devinit int tegra_wm8903_driver_probe(struct platform_device *pdev) ret = -ENOMEM; goto err; } - machine->pcm_dev = ERR_PTR(-EINVAL); card->dev = &pdev->dev; platform_set_drvdata(pdev, card); @@ -428,14 +423,9 @@ static __devinit int tegra_wm8903_driver_probe(struct platform_device *pdev) goto err; } - machine->pcm_dev = platform_device_register_simple( - "tegra-pcm-audio", -1, NULL, 0); - if (IS_ERR(machine->pcm_dev)) { - dev_err(&pdev->dev, - "Can't instantiate tegra-pcm-audio\n"); - ret = PTR_ERR(machine->pcm_dev); - goto err; - } + tegra_wm8903_dai.platform_name = NULL; + tegra_wm8903_dai.platform_of_node = + tegra_wm8903_dai.cpu_dai_of_node; } else { if (machine_is_harmony()) { card->dapm_routes = harmony_audio_map; @@ -454,7 +444,7 @@ static __devinit int tegra_wm8903_driver_probe(struct platform_device *pdev) ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev); if (ret) - goto err_unregister; + goto err; ret = snd_soc_register_card(card); if (ret) { @@ -467,9 +457,6 @@ static __devinit int tegra_wm8903_driver_probe(struct platform_device *pdev) err_fini_utils: tegra_asoc_utils_fini(&machine->util_data); -err_unregister: - if (!IS_ERR(machine->pcm_dev)) - platform_device_unregister(machine->pcm_dev); err: return ret; } @@ -497,8 +484,6 @@ static int __devexit tegra_wm8903_driver_remove(struct platform_device *pdev) snd_soc_unregister_card(card); tegra_asoc_utils_fini(&machine->util_data); - if (!IS_ERR(machine->pcm_dev)) - platform_device_unregister(machine->pcm_dev); return 0; } diff --git a/sound/soc/tegra/trimslice.c b/sound/soc/tegra/trimslice.c index 2bdfc550cff8..4a8d5b672c9f 100644 --- a/sound/soc/tegra/trimslice.c +++ b/sound/soc/tegra/trimslice.c @@ -27,6 +27,7 @@ #include <asm/mach-types.h> #include <linux/module.h> +#include <linux/of.h> #include <linux/platform_device.h> #include <linux/slab.h> @@ -38,9 +39,6 @@ #include "../codecs/tlv320aic23.h" -#include "tegra_das.h" -#include "tegra_i2s.h" -#include "tegra_pcm.h" #include "tegra_asoc_utils.h" #define DRV_NAME "tegra-snd-trimslice" @@ -119,8 +117,8 @@ static struct snd_soc_dai_link trimslice_tlv320aic23_dai = { .name = "TLV320AIC23", .stream_name = "AIC23", .codec_name = "tlv320aic23-codec.2-001a", - .platform_name = "tegra-pcm-audio", - .cpu_dai_name = "tegra-i2s.0", + .platform_name = "tegra20-i2s.0", + .cpu_dai_name = "tegra20-i2s.0", .codec_dai_name = "tlv320aic23-hifi", .ops = &trimslice_asoc_ops, }; @@ -152,6 +150,32 @@ static __devinit int tegra_snd_trimslice_probe(struct platform_device *pdev) goto err; } + if (pdev->dev.of_node) { + trimslice_tlv320aic23_dai.codec_name = NULL; + trimslice_tlv320aic23_dai.codec_of_node = of_parse_phandle( + pdev->dev.of_node, "nvidia,audio-codec", 0); + if (!trimslice_tlv320aic23_dai.codec_of_node) { + dev_err(&pdev->dev, + "Property 'nvidia,audio-codec' missing or invalid\n"); + ret = -EINVAL; + goto err; + } + + trimslice_tlv320aic23_dai.cpu_dai_name = NULL; + trimslice_tlv320aic23_dai.cpu_dai_of_node = of_parse_phandle( + pdev->dev.of_node, "nvidia,i2s-controller", 0); + if (!trimslice_tlv320aic23_dai.cpu_dai_of_node) { + dev_err(&pdev->dev, + "Property 'nvidia,i2s-controller' missing or invalid\n"); + ret = -EINVAL; + goto err; + } + + trimslice_tlv320aic23_dai.platform_name = NULL; + trimslice_tlv320aic23_dai.platform_of_node = + trimslice_tlv320aic23_dai.cpu_dai_of_node; + } + ret = tegra_asoc_utils_init(&trimslice->util_data, &pdev->dev); if (ret) goto err; @@ -187,10 +211,17 @@ static int __devexit tegra_snd_trimslice_remove(struct platform_device *pdev) return 0; } +static const struct of_device_id trimslice_of_match[] __devinitconst = { + { .compatible = "nvidia,tegra-audio-trimslice", }, + {}, +}; +MODULE_DEVICE_TABLE(of, trimslice_of_match); + static struct platform_driver tegra_snd_trimslice_driver = { .driver = { .name = DRV_NAME, .owner = THIS_MODULE, + .of_match_table = trimslice_of_match, }, .probe = tegra_snd_trimslice_probe, .remove = __devexit_p(tegra_snd_trimslice_remove), |