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Diffstat (limited to 'sound/soc/imx/mx27vis_wm8974.c')
-rw-r--r--sound/soc/imx/mx27vis_wm8974.c318
1 files changed, 0 insertions, 318 deletions
diff --git a/sound/soc/imx/mx27vis_wm8974.c b/sound/soc/imx/mx27vis_wm8974.c
deleted file mode 100644
index 07d2a248438c..000000000000
--- a/sound/soc/imx/mx27vis_wm8974.c
+++ /dev/null
@@ -1,318 +0,0 @@
-/*
- * mx27vis_wm8974.c -- SoC audio for mx27vis
- *
- * Copyright 2009 Vista Silicon S.L.
- * Author: Javier Martin
- * javier.martin@vista-silicon.com
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/device.h>
-#include <linux/i2c.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/soc.h>
-#include <sound/soc-dapm.h>
-
-
-#include "../codecs/wm8974.h"
-#include "mx1_mx2-pcm.h"
-#include "mxc-ssi.h"
-#include <mach/gpio.h>
-#include <mach/iomux.h>
-
-#define IGNORED_ARG 0
-
-
-static struct snd_soc_card mx27vis;
-
-/**
- * This function connects SSI1 (HPCR1) as slave to
- * SSI1 external signals (PPCR1)
- * As slave, HPCR1 must set TFSDIR and TCLKDIR as inputs from
- * port 4
- */
-void audmux_connect_1_4(void)
-{
- pr_debug("AUDMUX: normal operation mode\n");
- /* Reset HPCR1 and PPCR1 */
-
- DAM_HPCR1 = 0x00000000;
- DAM_PPCR1 = 0x00000000;
-
- /* set to synchronous */
- DAM_HPCR1 |= AUDMUX_HPCR_SYN;
- DAM_PPCR1 |= AUDMUX_PPCR_SYN;
-
-
- /* set Rx sources 1 <--> 4 */
- DAM_HPCR1 |= AUDMUX_HPCR_RXDSEL(3); /* port 4 */
- DAM_PPCR1 |= AUDMUX_PPCR_RXDSEL(0); /* port 1 */
-
- /* set Tx frame and Clock direction and source 4 --> 1 output */
- DAM_HPCR1 |= AUDMUX_HPCR_TFSDIR | AUDMUX_HPCR_TCLKDIR;
- DAM_HPCR1 |= AUDMUX_HPCR_TFCSEL(3); /* TxDS and TxCclk from port 4 */
-
- return;
-}
-
-static int mx27vis_hifi_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
- struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
- unsigned int pll_out = 0, bclk = 0, fmt = 0, mclk = 0;
- int ret = 0;
-
- /*
- * The WM8974 is better at generating accurate audio clocks than the
- * MX27 SSI controller, so we will use it as master when we can.
- */
- switch (params_rate(params)) {
- case 8000:
- fmt = SND_SOC_DAIFMT_CBM_CFM;
- mclk = WM8974_MCLKDIV_12;
- pll_out = 24576000;
- break;
- case 16000:
- fmt = SND_SOC_DAIFMT_CBM_CFM;
- pll_out = 12288000;
- break;
- case 48000:
- fmt = SND_SOC_DAIFMT_CBM_CFM;
- bclk = WM8974_BCLKDIV_4;
- pll_out = 12288000;
- break;
- case 96000:
- fmt = SND_SOC_DAIFMT_CBM_CFM;
- bclk = WM8974_BCLKDIV_2;
- pll_out = 12288000;
- break;
- case 11025:
- fmt = SND_SOC_DAIFMT_CBM_CFM;
- bclk = WM8974_BCLKDIV_16;
- pll_out = 11289600;
- break;
- case 22050:
- fmt = SND_SOC_DAIFMT_CBM_CFM;
- bclk = WM8974_BCLKDIV_8;
- pll_out = 11289600;
- break;
- case 44100:
- fmt = SND_SOC_DAIFMT_CBM_CFM;
- bclk = WM8974_BCLKDIV_4;
- mclk = WM8974_MCLKDIV_2;
- pll_out = 11289600;
- break;
- case 88200:
- fmt = SND_SOC_DAIFMT_CBM_CFM;
- bclk = WM8974_BCLKDIV_2;
- pll_out = 11289600;
- break;
- }
-
- /* set codec DAI configuration */
- ret = codec_dai->ops->set_fmt(codec_dai,
- SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_IF |
- SND_SOC_DAIFMT_SYNC | fmt);
- if (ret < 0) {
- printk(KERN_ERR "Error from codec DAI configuration\n");
- return ret;
- }
-
- /* set cpu DAI configuration */
- ret = cpu_dai->ops->set_fmt(cpu_dai,
- SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_SYNC | fmt);
- if (ret < 0) {
- printk(KERN_ERR "Error from cpu DAI configuration\n");
- return ret;
- }
-
- /* Put DC field of STCCR to 1 (not zero) */
- ret = cpu_dai->ops->set_tdm_slot(cpu_dai, 0, 2);
-
- /* set the SSI system clock as input */
- ret = cpu_dai->ops->set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
- SND_SOC_CLOCK_IN);
- if (ret < 0) {
- printk(KERN_ERR "Error when setting system SSI clk\n");
- return ret;
- }
-
- /* set codec BCLK division for sample rate */
- ret = codec_dai->ops->set_clkdiv(codec_dai, WM8974_BCLKDIV, bclk);
- if (ret < 0) {
- printk(KERN_ERR "Error when setting BCLK division\n");
- return ret;
- }
-
-
- /* codec PLL input is 25 MHz */
- ret = codec_dai->ops->set_pll(codec_dai, IGNORED_ARG, IGNORED_ARG,
- 25000000, pll_out);
- if (ret < 0) {
- printk(KERN_ERR "Error when setting PLL input\n");
- return ret;
- }
-
- /*set codec MCLK division for sample rate */
- ret = codec_dai->ops->set_clkdiv(codec_dai, WM8974_MCLKDIV, mclk);
- if (ret < 0) {
- printk(KERN_ERR "Error when setting MCLK division\n");
- return ret;
- }
-
- return 0;
-}
-
-static int mx27vis_hifi_hw_free(struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
-
- /* disable the PLL */
- return codec_dai->ops->set_pll(codec_dai, IGNORED_ARG, IGNORED_ARG,
- 0, 0);
-}
-
-/*
- * mx27vis WM8974 HiFi DAI opserations.
- */
-static struct snd_soc_ops mx27vis_hifi_ops = {
- .hw_params = mx27vis_hifi_hw_params,
- .hw_free = mx27vis_hifi_hw_free,
-};
-
-
-static int mx27vis_suspend(struct platform_device *pdev, pm_message_t state)
-{
- return 0;
-}
-
-static int mx27vis_resume(struct platform_device *pdev)
-{
- return 0;
-}
-
-static int mx27vis_probe(struct platform_device *pdev)
-{
- int ret = 0;
-
- ret = get_ssi_clk(0, &pdev->dev);
-
- if (ret < 0) {
- printk(KERN_ERR "%s: cant get ssi clock\n", __func__);
- return ret;
- }
-
-
- return 0;
-}
-
-static int mx27vis_remove(struct platform_device *pdev)
-{
- put_ssi_clk(0);
- return 0;
-}
-
-static struct snd_soc_dai_link mx27vis_dai[] = {
-{ /* Hifi Playback*/
- .name = "WM8974",
- .stream_name = "WM8974 HiFi",
- .cpu_dai = &imx_ssi_pcm_dai[0],
- .codec_dai = &wm8974_dai,
- .ops = &mx27vis_hifi_ops,
-},
-};
-
-static struct snd_soc_card mx27vis = {
- .name = "mx27vis",
- .platform = &mx1_mx2_soc_platform,
- .probe = mx27vis_probe,
- .remove = mx27vis_remove,
- .suspend_pre = mx27vis_suspend,
- .resume_post = mx27vis_resume,
- .dai_link = mx27vis_dai,
- .num_links = ARRAY_SIZE(mx27vis_dai),
-};
-
-static struct snd_soc_device mx27vis_snd_devdata = {
- .card = &mx27vis,
- .codec_dev = &soc_codec_dev_wm8974,
-};
-
-static struct platform_device *mx27vis_snd_device;
-
-/* Temporal definition of board specific behaviour */
-void gpio_ssi_active(int ssi_num)
-{
- int ret = 0;
-
- unsigned int ssi1_pins[] = {
- PC20_PF_SSI1_FS,
- PC21_PF_SSI1_RXD,
- PC22_PF_SSI1_TXD,
- PC23_PF_SSI1_CLK,
- };
- unsigned int ssi2_pins[] = {
- PC24_PF_SSI2_FS,
- PC25_PF_SSI2_RXD,
- PC26_PF_SSI2_TXD,
- PC27_PF_SSI2_CLK,
- };
- if (ssi_num == 0)
- ret = mxc_gpio_setup_multiple_pins(ssi1_pins,
- ARRAY_SIZE(ssi1_pins), "USB OTG");
- else
- ret = mxc_gpio_setup_multiple_pins(ssi2_pins,
- ARRAY_SIZE(ssi2_pins), "USB OTG");
- if (ret)
- printk(KERN_ERR "Error requesting ssi %x pins\n", ssi_num);
-}
-
-
-static int __init mx27vis_init(void)
-{
- int ret;
-
- mx27vis_snd_device = platform_device_alloc("soc-audio", -1);
- if (!mx27vis_snd_device)
- return -ENOMEM;
-
- platform_set_drvdata(mx27vis_snd_device, &mx27vis_snd_devdata);
- mx27vis_snd_devdata.dev = &mx27vis_snd_device->dev;
- ret = platform_device_add(mx27vis_snd_device);
-
- if (ret) {
- printk(KERN_ERR "ASoC: Platform device allocation failed\n");
- platform_device_put(mx27vis_snd_device);
- }
-
- /* WM8974 uses SSI1 (HPCR1) via AUDMUX port 4 for audio (PPCR1) */
- gpio_ssi_active(0);
- audmux_connect_1_4();
-
- return ret;
-}
-
-static void __exit mx27vis_exit(void)
-{
- /* We should call some "ssi_gpio_inactive()" properly */
-}
-
-module_init(mx27vis_init);
-module_exit(mx27vis_exit);
-
-
-MODULE_AUTHOR("Javier Martin, javier.martin@vista-silicon.com");
-MODULE_DESCRIPTION("ALSA SoC WM8974 mx27vis");
-MODULE_LICENSE("GPL");
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.