From 66a6fd9846f0aecdbab9324b792b319fd8e95e77 Mon Sep 17 00:00:00 2001 From: Jie Yang Date: Thu, 2 Apr 2015 15:37:03 +0800 Subject: ASoC: Intel: create baytrail folder and move baytrail platform files in Restructure the sound/soc/intel/ directory: create baytrail folder, and move sst baytrail platform files here. Signed-off-by: Jie Yang Acked-by: Jarkko Nikula Tested-by: Jarkko Nikula Signed-off-by: Mark Brown --- sound/soc/intel/Makefile | 5 +- sound/soc/intel/baytrail/Makefile | 4 + sound/soc/intel/baytrail/sst-baytrail-dsp.c | 366 +++++++++++ sound/soc/intel/baytrail/sst-baytrail-ipc.c | 983 ++++++++++++++++++++++++++++ sound/soc/intel/baytrail/sst-baytrail-ipc.h | 73 +++ sound/soc/intel/baytrail/sst-baytrail-pcm.c | 505 ++++++++++++++ sound/soc/intel/sst-baytrail-dsp.c | 366 ----------- sound/soc/intel/sst-baytrail-ipc.c | 983 ---------------------------- sound/soc/intel/sst-baytrail-ipc.h | 73 --- sound/soc/intel/sst-baytrail-pcm.c | 505 -------------- 10 files changed, 1932 insertions(+), 1931 deletions(-) create mode 100644 sound/soc/intel/baytrail/Makefile create mode 100644 sound/soc/intel/baytrail/sst-baytrail-dsp.c create mode 100644 sound/soc/intel/baytrail/sst-baytrail-ipc.c create mode 100644 sound/soc/intel/baytrail/sst-baytrail-ipc.h create mode 100644 sound/soc/intel/baytrail/sst-baytrail-pcm.c delete mode 100644 sound/soc/intel/sst-baytrail-dsp.c delete mode 100644 sound/soc/intel/sst-baytrail-ipc.c delete mode 100644 sound/soc/intel/sst-baytrail-ipc.h delete mode 100644 sound/soc/intel/sst-baytrail-pcm.c (limited to 'sound/soc') diff --git a/sound/soc/intel/Makefile b/sound/soc/intel/Makefile index ac0248f100ff..62de82af6703 100644 --- a/sound/soc/intel/Makefile +++ b/sound/soc/intel/Makefile @@ -10,10 +10,7 @@ obj-$(CONFIG_SND_MFLD_MACHINE) += snd-soc-mfld-machine.o # Platform Support obj-$(CONFIG_SND_SOC_INTEL_HASWELL) += haswell/ -snd-soc-sst-baytrail-pcm-objs := \ - sst-baytrail-ipc.o sst-baytrail-pcm.o sst-baytrail-dsp.o - -obj-$(CONFIG_SND_SOC_INTEL_BAYTRAIL) += snd-soc-sst-baytrail-pcm.o +obj-$(CONFIG_SND_SOC_INTEL_BAYTRAIL) += baytrail/ # Machine support obj-$(CONFIG_SND_SOC_INTEL_SST) += boards/ diff --git a/sound/soc/intel/baytrail/Makefile b/sound/soc/intel/baytrail/Makefile new file mode 100644 index 000000000000..488408cadf6d --- /dev/null +++ b/sound/soc/intel/baytrail/Makefile @@ -0,0 +1,4 @@ +snd-soc-sst-baytrail-pcm-objs := \ + sst-baytrail-ipc.o sst-baytrail-pcm.o sst-baytrail-dsp.o + +obj-$(CONFIG_SND_SOC_INTEL_BAYTRAIL) += snd-soc-sst-baytrail-pcm.o diff --git a/sound/soc/intel/baytrail/sst-baytrail-dsp.c b/sound/soc/intel/baytrail/sst-baytrail-dsp.c new file mode 100644 index 000000000000..01d023cc05dd --- /dev/null +++ b/sound/soc/intel/baytrail/sst-baytrail-dsp.c @@ -0,0 +1,366 @@ +/* + * Intel Baytrail SST DSP driver + * Copyright (c) 2014, Intel Corporation. + * + * 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. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "../common/sst-dsp.h" +#include "../common/sst-dsp-priv.h" +#include "sst-baytrail-ipc.h" + +#define SST_BYT_FW_SIGNATURE_SIZE 4 +#define SST_BYT_FW_SIGN "$SST" + +#define SST_BYT_IRAM_OFFSET 0xC0000 +#define SST_BYT_DRAM_OFFSET 0x100000 +#define SST_BYT_SHIM_OFFSET 0x140000 + +enum sst_ram_type { + SST_BYT_IRAM = 1, + SST_BYT_DRAM = 2, + SST_BYT_CACHE = 3, +}; + +struct dma_block_info { + enum sst_ram_type type; /* IRAM/DRAM */ + u32 size; /* Bytes */ + u32 ram_offset; /* Offset in I/DRAM */ + u32 rsvd; /* Reserved field */ +}; + +struct fw_header { + unsigned char signature[SST_BYT_FW_SIGNATURE_SIZE]; + u32 file_size; /* size of fw minus this header */ + u32 modules; /* # of modules */ + u32 file_format; /* version of header format */ + u32 reserved[4]; +}; + +struct sst_byt_fw_module_header { + unsigned char signature[SST_BYT_FW_SIGNATURE_SIZE]; + u32 mod_size; /* size of module */ + u32 blocks; /* # of blocks */ + u32 type; /* codec type, pp lib */ + u32 entry_point; +}; + +static int sst_byt_parse_module(struct sst_dsp *dsp, struct sst_fw *fw, + struct sst_byt_fw_module_header *module) +{ + struct dma_block_info *block; + struct sst_module *mod; + struct sst_module_template template; + int count; + + memset(&template, 0, sizeof(template)); + template.id = module->type; + template.entry = module->entry_point; + + mod = sst_module_new(fw, &template, NULL); + if (mod == NULL) + return -ENOMEM; + + block = (void *)module + sizeof(*module); + + for (count = 0; count < module->blocks; count++) { + + if (block->size <= 0) { + dev_err(dsp->dev, "block %d size invalid\n", count); + return -EINVAL; + } + + switch (block->type) { + case SST_BYT_IRAM: + mod->offset = block->ram_offset + + dsp->addr.iram_offset; + mod->type = SST_MEM_IRAM; + break; + case SST_BYT_DRAM: + mod->offset = block->ram_offset + + dsp->addr.dram_offset; + mod->type = SST_MEM_DRAM; + break; + case SST_BYT_CACHE: + mod->offset = block->ram_offset + + (dsp->addr.fw_ext - dsp->addr.lpe); + mod->type = SST_MEM_CACHE; + break; + default: + dev_err(dsp->dev, "wrong ram type 0x%x in block0x%x\n", + block->type, count); + return -EINVAL; + } + + mod->size = block->size; + mod->data = (void *)block + sizeof(*block); + + sst_module_alloc_blocks(mod); + + block = (void *)block + sizeof(*block) + block->size; + } + return 0; +} + +static int sst_byt_parse_fw_image(struct sst_fw *sst_fw) +{ + struct fw_header *header; + struct sst_byt_fw_module_header *module; + struct sst_dsp *dsp = sst_fw->dsp; + int ret, count; + + /* Read the header information from the data pointer */ + header = (struct fw_header *)sst_fw->dma_buf; + + /* verify FW */ + if ((strncmp(header->signature, SST_BYT_FW_SIGN, 4) != 0) || + (sst_fw->size != header->file_size + sizeof(*header))) { + /* Invalid FW signature */ + dev_err(dsp->dev, "Invalid FW sign/filesize mismatch\n"); + return -EINVAL; + } + + dev_dbg(dsp->dev, + "header sign=%4s size=0x%x modules=0x%x fmt=0x%x size=%zu\n", + header->signature, header->file_size, header->modules, + header->file_format, sizeof(*header)); + + module = (void *)sst_fw->dma_buf + sizeof(*header); + for (count = 0; count < header->modules; count++) { + /* module */ + ret = sst_byt_parse_module(dsp, sst_fw, module); + if (ret < 0) { + dev_err(dsp->dev, "invalid module %d\n", count); + return ret; + } + module = (void *)module + sizeof(*module) + module->mod_size; + } + + return 0; +} + +static void sst_byt_dump_shim(struct sst_dsp *sst) +{ + int i; + u64 reg; + + for (i = 0; i <= 0xF0; i += 8) { + reg = sst_dsp_shim_read64_unlocked(sst, i); + if (reg) + dev_dbg(sst->dev, "shim 0x%2.2x value 0x%16.16llx\n", + i, reg); + } + + for (i = 0x00; i <= 0xff; i += 4) { + reg = readl(sst->addr.pci_cfg + i); + if (reg) + dev_dbg(sst->dev, "pci 0x%2.2x value 0x%8.8x\n", + i, (u32)reg); + } +} + +static irqreturn_t sst_byt_irq(int irq, void *context) +{ + struct sst_dsp *sst = (struct sst_dsp *) context; + u64 isrx; + irqreturn_t ret = IRQ_NONE; + + spin_lock(&sst->spinlock); + + isrx = sst_dsp_shim_read64_unlocked(sst, SST_ISRX); + if (isrx & SST_ISRX_DONE) { + /* ADSP has processed the message request from IA */ + sst_dsp_shim_update_bits64_unlocked(sst, SST_IPCX, + SST_BYT_IPCX_DONE, 0); + ret = IRQ_WAKE_THREAD; + } + if (isrx & SST_BYT_ISRX_REQUEST) { + /* mask message request from ADSP and do processing later */ + sst_dsp_shim_update_bits64_unlocked(sst, SST_IMRX, + SST_BYT_IMRX_REQUEST, + SST_BYT_IMRX_REQUEST); + ret = IRQ_WAKE_THREAD; + } + + spin_unlock(&sst->spinlock); + + return ret; +} + +static void sst_byt_boot(struct sst_dsp *sst) +{ + int tries = 10; + + /* + * save the physical address of extended firmware block in the first + * 4 bytes of the mailbox + */ + memcpy_toio(sst->addr.lpe + SST_BYT_MAILBOX_OFFSET, + &sst->pdata->fw_base, sizeof(u32)); + + /* release stall and wait to unstall */ + sst_dsp_shim_update_bits64(sst, SST_CSR, SST_BYT_CSR_STALL, 0x0); + while (tries--) { + if (!(sst_dsp_shim_read64(sst, SST_CSR) & + SST_BYT_CSR_PWAITMODE)) + break; + msleep(100); + } + if (tries < 0) { + dev_err(sst->dev, "unable to start DSP\n"); + sst_byt_dump_shim(sst); + } +} + +static void sst_byt_reset(struct sst_dsp *sst) +{ + /* put DSP into reset, set reset vector and stall */ + sst_dsp_shim_update_bits64(sst, SST_CSR, + SST_BYT_CSR_RST | SST_BYT_CSR_VECTOR_SEL | SST_BYT_CSR_STALL, + SST_BYT_CSR_RST | SST_BYT_CSR_VECTOR_SEL | SST_BYT_CSR_STALL); + + udelay(10); + + /* take DSP out of reset and keep stalled for FW loading */ + sst_dsp_shim_update_bits64(sst, SST_CSR, SST_BYT_CSR_RST, 0); +} + +struct sst_adsp_memregion { + u32 start; + u32 end; + int blocks; + enum sst_mem_type type; +}; + +/* BYT test stuff */ +static const struct sst_adsp_memregion byt_region[] = { + {0xC0000, 0x100000, 8, SST_MEM_IRAM}, /* I-SRAM - 8 * 32kB */ + {0x100000, 0x140000, 8, SST_MEM_DRAM}, /* D-SRAM0 - 8 * 32kB */ +}; + +static int sst_byt_resource_map(struct sst_dsp *sst, struct sst_pdata *pdata) +{ + sst->addr.lpe_base = pdata->lpe_base; + sst->addr.lpe = ioremap(pdata->lpe_base, pdata->lpe_size); + if (!sst->addr.lpe) + return -ENODEV; + + /* ADSP PCI MMIO config space */ + sst->addr.pci_cfg = ioremap(pdata->pcicfg_base, pdata->pcicfg_size); + if (!sst->addr.pci_cfg) { + iounmap(sst->addr.lpe); + return -ENODEV; + } + + /* SST Extended FW allocation */ + sst->addr.fw_ext = ioremap(pdata->fw_base, pdata->fw_size); + if (!sst->addr.fw_ext) { + iounmap(sst->addr.pci_cfg); + iounmap(sst->addr.lpe); + return -ENODEV; + } + + /* SST Shim */ + sst->addr.shim = sst->addr.lpe + sst->addr.shim_offset; + + sst_dsp_mailbox_init(sst, SST_BYT_MAILBOX_OFFSET + 0x204, + SST_BYT_IPC_MAX_PAYLOAD_SIZE, + SST_BYT_MAILBOX_OFFSET, + SST_BYT_IPC_MAX_PAYLOAD_SIZE); + + sst->irq = pdata->irq; + + return 0; +} + +static int sst_byt_init(struct sst_dsp *sst, struct sst_pdata *pdata) +{ + const struct sst_adsp_memregion *region; + struct device *dev; + int ret = -ENODEV, i, j, region_count; + u32 offset, size; + + dev = sst->dev; + + switch (sst->id) { + case SST_DEV_ID_BYT: + region = byt_region; + region_count = ARRAY_SIZE(byt_region); + sst->addr.iram_offset = SST_BYT_IRAM_OFFSET; + sst->addr.dram_offset = SST_BYT_DRAM_OFFSET; + sst->addr.shim_offset = SST_BYT_SHIM_OFFSET; + break; + default: + dev_err(dev, "failed to get mem resources\n"); + return ret; + } + + ret = sst_byt_resource_map(sst, pdata); + if (ret < 0) { + dev_err(dev, "failed to map resources\n"); + return ret; + } + + ret = dma_coerce_mask_and_coherent(sst->dma_dev, DMA_BIT_MASK(32)); + if (ret) + return ret; + + /* enable Interrupt from both sides */ + sst_dsp_shim_update_bits64(sst, SST_IMRX, 0x3, 0x0); + sst_dsp_shim_update_bits64(sst, SST_IMRD, 0x3, 0x0); + + /* register DSP memory blocks - ideally we should get this from ACPI */ + for (i = 0; i < region_count; i++) { + offset = region[i].start; + size = (region[i].end - region[i].start) / region[i].blocks; + + /* register individual memory blocks */ + for (j = 0; j < region[i].blocks; j++) { + sst_mem_block_register(sst, offset, size, + region[i].type, NULL, j, sst); + offset += size; + } + } + + return 0; +} + +static void sst_byt_free(struct sst_dsp *sst) +{ + sst_mem_block_unregister_all(sst); + iounmap(sst->addr.lpe); + iounmap(sst->addr.pci_cfg); + iounmap(sst->addr.fw_ext); +} + +struct sst_ops sst_byt_ops = { + .reset = sst_byt_reset, + .boot = sst_byt_boot, + .write = sst_shim32_write, + .read = sst_shim32_read, + .write64 = sst_shim32_write64, + .read64 = sst_shim32_read64, + .ram_read = sst_memcpy_fromio_32, + .ram_write = sst_memcpy_toio_32, + .irq_handler = sst_byt_irq, + .init = sst_byt_init, + .free = sst_byt_free, + .parse_fw = sst_byt_parse_fw_image, +}; diff --git a/sound/soc/intel/baytrail/sst-baytrail-ipc.c b/sound/soc/intel/baytrail/sst-baytrail-ipc.c new file mode 100644 index 000000000000..aabb9b0f48b8 --- /dev/null +++ b/sound/soc/intel/baytrail/sst-baytrail-ipc.c @@ -0,0 +1,983 @@ +/* + * Intel Baytrail SST IPC Support + * Copyright (c) 2014, Intel Corporation. + * + * 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. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "sst-baytrail-ipc.h" +#include "../common/sst-dsp.h" +#include "../common/sst-dsp-priv.h" + +/* IPC message timeout */ +#define IPC_TIMEOUT_MSECS 300 +#define IPC_BOOT_MSECS 200 + +#define IPC_EMPTY_LIST_SIZE 8 + +/* IPC header bits */ +#define IPC_HEADER_MSG_ID_MASK 0xff +#define IPC_HEADER_MSG_ID(x) ((x) & IPC_HEADER_MSG_ID_MASK) +#define IPC_HEADER_STR_ID_SHIFT 8 +#define IPC_HEADER_STR_ID_MASK 0x1f +#define IPC_HEADER_STR_ID(x) (((x) & 0x1f) << IPC_HEADER_STR_ID_SHIFT) +#define IPC_HEADER_LARGE_SHIFT 13 +#define IPC_HEADER_LARGE(x) (((x) & 0x1) << IPC_HEADER_LARGE_SHIFT) +#define IPC_HEADER_DATA_SHIFT 16 +#define IPC_HEADER_DATA_MASK 0x3fff +#define IPC_HEADER_DATA(x) (((x) & 0x3fff) << IPC_HEADER_DATA_SHIFT) + +/* mask for differentiating between notification and reply message */ +#define IPC_NOTIFICATION (0x1 << 7) + +/* I2L Stream config/control msgs */ +#define IPC_IA_ALLOC_STREAM 0x20 +#define IPC_IA_FREE_STREAM 0x21 +#define IPC_IA_PAUSE_STREAM 0x24 +#define IPC_IA_RESUME_STREAM 0x25 +#define IPC_IA_DROP_STREAM 0x26 +#define IPC_IA_START_STREAM 0x30 + +/* notification messages */ +#define IPC_IA_FW_INIT_CMPLT 0x81 +#define IPC_SST_PERIOD_ELAPSED 0x97 + +/* IPC messages between host and ADSP */ +struct sst_byt_address_info { + u32 addr; + u32 size; +} __packed; + +struct sst_byt_str_type { + u8 codec_type; + u8 str_type; + u8 operation; + u8 protected_str; + u8 time_slots; + u8 reserved; + u16 result; +} __packed; + +struct sst_byt_pcm_params { + u8 num_chan; + u8 pcm_wd_sz; + u8 use_offload_path; + u8 reserved; + u32 sfreq; + u8 channel_map[8]; +} __packed; + +struct sst_byt_frames_info { + u16 num_entries; + u16 rsrvd; + u32 frag_size; + struct sst_byt_address_info ring_buf_info[8]; +} __packed; + +struct sst_byt_alloc_params { + struct sst_byt_str_type str_type; + struct sst_byt_pcm_params pcm_params; + struct sst_byt_frames_info frame_info; +} __packed; + +struct sst_byt_alloc_response { + struct sst_byt_str_type str_type; + u8 reserved[88]; +} __packed; + +struct sst_byt_start_stream_params { + u32 byte_offset; +} __packed; + +struct sst_byt_tstamp { + u64 ring_buffer_counter; + u64 hardware_counter; + u64 frames_decoded; + u64 bytes_decoded; + u64 bytes_copied; + u32 sampling_frequency; + u32 channel_peak[8]; +} __packed; + +struct sst_byt_fw_version { + u8 build; + u8 minor; + u8 major; + u8 type; +} __packed; + +struct sst_byt_fw_build_info { + u8 date[16]; + u8 time[16]; +} __packed; + +struct sst_byt_fw_init { + struct sst_byt_fw_version fw_version; + struct sst_byt_fw_build_info build_info; + u16 result; + u8 module_id; + u8 debug_info; +} __packed; + +/* driver internal IPC message structure */ +struct ipc_message { + struct list_head list; + u64 header; + + /* direction wrt host CPU */ + char tx_data[SST_BYT_IPC_MAX_PAYLOAD_SIZE]; + size_t tx_size; + char rx_data[SST_BYT_IPC_MAX_PAYLOAD_SIZE]; + size_t rx_size; + + wait_queue_head_t waitq; + bool complete; + bool wait; + int errno; +}; + +struct sst_byt_stream; +struct sst_byt; + +/* stream infomation */ +struct sst_byt_stream { + struct list_head node; + + /* configuration */ + struct sst_byt_alloc_params request; + struct sst_byt_alloc_response reply; + + /* runtime info */ + struct sst_byt *byt; + int str_id; + bool commited; + bool running; + + /* driver callback */ + u32 (*notify_position)(struct sst_byt_stream *stream, void *data); + void *pdata; +}; + +/* SST Baytrail IPC data */ +struct sst_byt { + struct device *dev; + struct sst_dsp *dsp; + + /* stream */ + struct list_head stream_list; + + /* boot */ + wait_queue_head_t boot_wait; + bool boot_complete; + struct sst_fw *fw; + + /* IPC messaging */ + struct list_head tx_list; + struct list_head rx_list; + struct list_head empty_list; + wait_queue_head_t wait_txq; + struct task_struct *tx_thread; + struct kthread_worker kworker; + struct kthread_work kwork; + struct ipc_message *msg; +}; + +static inline u64 sst_byt_header(int msg_id, int data, bool large, int str_id) +{ + u64 header; + + header = IPC_HEADER_MSG_ID(msg_id) | + IPC_HEADER_STR_ID(str_id) | + IPC_HEADER_LARGE(large) | + IPC_HEADER_DATA(data) | + SST_BYT_IPCX_BUSY; + + return header; +} + +static inline u16 sst_byt_header_msg_id(u64 header) +{ + return header & IPC_HEADER_MSG_ID_MASK; +} + +static inline u8 sst_byt_header_str_id(u64 header) +{ + return (header >> IPC_HEADER_STR_ID_SHIFT) & IPC_HEADER_STR_ID_MASK; +} + +static inline u16 sst_byt_header_data(u64 header) +{ + return (header >> IPC_HEADER_DATA_SHIFT) & IPC_HEADER_DATA_MASK; +} + +static struct sst_byt_stream *sst_byt_get_stream(struct sst_byt *byt, + int stream_id) +{ + struct sst_byt_stream *stream; + + list_for_each_entry(stream, &byt->stream_list, node) { + if (stream->str_id == stream_id) + return stream; + } + + return NULL; +} + +static void sst_byt_ipc_shim_dbg(struct sst_byt *byt, const char *text) +{ + struct sst_dsp *sst = byt->dsp; + u64 isr, ipcd, imrx, ipcx; + + ipcx = sst_dsp_shim_read64_unlocked(sst, SST_IPCX); + isr = sst_dsp_shim_read64_unlocked(sst, SST_ISRX); + ipcd = sst_dsp_shim_read64_unlocked(sst, SST_IPCD); + imrx = sst_dsp_shim_read64_unlocked(sst, SST_IMRX); + + dev_err(byt->dev, + "ipc: --%s-- ipcx 0x%llx isr 0x%llx ipcd 0x%llx imrx 0x%llx\n", + text, ipcx, isr, ipcd, imrx); +} + +/* locks held by caller */ +static struct ipc_message *sst_byt_msg_get_empty(struct sst_byt *byt) +{ + struct ipc_message *msg = NULL; + + if (!list_empty(&byt->empty_list)) { + msg = list_first_entry(&byt->empty_list, + struct ipc_message, list); + list_del(&msg->list); + } + + return msg; +} + +static void sst_byt_ipc_tx_msgs(struct kthread_work *work) +{ + struct sst_byt *byt = + container_of(work, struct sst_byt, kwork); + struct ipc_message *msg; + u64 ipcx; + unsigned long flags; + + spin_lock_irqsave(&byt->dsp->spinlock, flags); + if (list_empty(&byt->tx_list)) { + spin_unlock_irqrestore(&byt->dsp->spinlock, flags); + return; + } + + /* if the DSP is busy we will TX messages after IRQ */ + ipcx = sst_dsp_shim_read64_unlocked(byt->dsp, SST_IPCX); + if (ipcx & SST_BYT_IPCX_BUSY) { + spin_unlock_irqrestore(&byt->dsp->spinlock, flags); + return; + } + + msg = list_first_entry(&byt->tx_list, struct ipc_message, list); + + list_move(&msg->list, &byt->rx_list); + + /* send the message */ + if (msg->header & IPC_HEADER_LARGE(true)) + sst_dsp_outbox_write(byt->dsp, msg->tx_data, msg->tx_size); + sst_dsp_shim_write64_unlocked(byt->dsp, SST_IPCX, msg->header); + + spin_unlock_irqrestore(&byt->dsp->spinlock, flags); +} + +static inline void sst_byt_tx_msg_reply_complete(struct sst_byt *byt, + struct ipc_message *msg) +{ + msg->complete = true; + + if (!msg->wait) + list_add_tail(&msg->list, &byt->empty_list); + else + wake_up(&msg->waitq); +} + +static void sst_byt_drop_all(struct sst_byt *byt) +{ + struct ipc_message *msg, *tmp; + unsigned long flags; + + /* drop all TX and Rx messages before we stall + reset DSP */ + spin_lock_irqsave(&byt->dsp->spinlock, flags); + list_for_each_entry_safe(msg, tmp, &byt->tx_list, list) { + list_move(&msg->list, &byt->empty_list); + } + + list_for_each_entry_safe(msg, tmp, &byt->rx_list, list) { + list_move(&msg->list, &byt->empty_list); + } + + spin_unlock_irqrestore(&byt->dsp->spinlock, flags); +} + +static int sst_byt_tx_wait_done(struct sst_byt *byt, struct ipc_message *msg, + void *rx_data) +{ + unsigned long flags; + int ret; + + /* wait for DSP completion */ + ret = wait_event_timeout(msg->waitq, msg->complete, + msecs_to_jiffies(IPC_TIMEOUT_MSECS)); + + spin_lock_irqsave(&byt->dsp->spinlock, flags); + if (ret == 0) { + list_del(&msg->list); + sst_byt_ipc_shim_dbg(byt, "message timeout"); + + ret = -ETIMEDOUT; + } else { + + /* copy the data returned from DSP */ + if (msg->rx_size) + memcpy(rx_data, msg->rx_data, msg->rx_size); + ret = msg->errno; + } + + list_add_tail(&msg->list, &byt->empty_list); + spin_unlock_irqrestore(&byt->dsp->spinlock, flags); + return ret; +} + +static int sst_byt_ipc_tx_message(struct sst_byt *byt, u64 header, + void *tx_data, size_t tx_bytes, + void *rx_data, size_t rx_bytes, int wait) +{ + unsigned long flags; + struct ipc_message *msg; + + spin_lock_irqsave(&byt->dsp->spinlock, flags); + + msg = sst_byt_msg_get_empty(byt); + if (msg == NULL) { + spin_unlock_irqrestore(&byt->dsp->spinlock, flags); + return -EBUSY; + } + + msg->header = header; + msg->tx_size = tx_bytes; + msg->rx_size = rx_bytes; + msg->wait = wait; + msg->errno = 0; + msg->complete = false; + + if (tx_bytes) { + /* msg content = lower 32-bit of the header + data */ + *(u32 *)msg->tx_data = (u32)(header & (u32)-1); + memcpy(msg->tx_data + sizeof(u32), tx_data, tx_bytes); + msg->tx_size += sizeof(u32); + } + + list_add_tail(&msg->list, &byt->tx_list); + spin_unlock_irqrestore(&byt->dsp->spinlock, flags); + + queue_kthread_work(&byt->kworker, &byt->kwork); + + if (wait) + return sst_byt_tx_wait_done(byt, msg, rx_data); + else + return 0; +} + +static inline int sst_byt_ipc_tx_msg_wait(struct sst_byt *byt, u64 header, + void *tx_data, size_t tx_bytes, + void *rx_data, size_t rx_bytes) +{ + return sst_byt_ipc_tx_message(byt, header, tx_data, tx_bytes, + rx_data, rx_bytes, 1); +} + +static inline int sst_byt_ipc_tx_msg_nowait(struct sst_byt *byt, u64 header, + void *tx_data, size_t tx_bytes) +{ + return sst_byt_ipc_tx_message(byt, header, tx_data, tx_bytes, + NULL, 0, 0); +} + +static struct ipc_message *sst_byt_reply_find_msg(struct sst_byt *byt, + u64 header) +{ + struct ipc_message *msg = NULL, *_msg; + u64 mask; + + /* match reply to message sent based on msg and stream IDs */ + mask = IPC_HEADER_MSG_ID_MASK | + IPC_HEADER_STR_ID_MASK << IPC_HEADER_STR_ID_SHIFT; + header &= mask; + + if (list_empty(&byt->rx_list)) { + dev_err(byt->dev, + "ipc: rx list is empty but received 0x%llx\n", header); + goto out; + } + + list_for_each_entry(_msg, &byt->rx_list, list) { + if ((_msg->header & mask) == header) { + msg = _msg; + break; + } + } + +out: + return msg; +} + +static void sst_byt_stream_update(struct sst_byt *byt, struct ipc_message *msg) +{ + struct sst_byt_stream *stream; + u64 header = msg->header; + u8 stream_id = sst_byt_header_str_id(header); + u8 stream_msg = sst_byt_header_msg_id(header); + + stream = sst_byt_get_stream(byt, stream_id); + if (stream == NULL) + return; + + switch (stream_msg) { + case IPC_IA_DROP_STREAM: + case IPC_IA_PAUSE_STREAM: + case IPC_IA_FREE_STREAM: + stream->running = false; + break; + case IPC_IA_START_STREAM: + case IPC_IA_RESUME_STREAM: + stream->running = true; + break; + } +} + +static int sst_byt_process_reply(struct sst_byt *byt, u64 header) +{ + struct ipc_message *msg; + + msg = sst_byt_reply_find_msg(byt, header); + if (msg == NULL) + return 1; + + if (header & IPC_HEADER_LARGE(true)) { + msg->rx_size = sst_byt_header_data(header); + sst_dsp_inbox_read(byt->dsp, msg->rx_data, msg->rx_size); + } + + /* update any stream states */ + sst_byt_stream_update(byt, msg); + + list_del(&msg->list); + /* wake up */ + sst_byt_tx_msg_reply_complete(byt, msg); + + return 1; +} + +static void sst_byt_fw_ready(struct sst_byt *byt, u64 header) +{ + dev_dbg(byt->dev, "ipc: DSP is ready 0x%llX\n", header); + + byt->boot_complete = true; + wake_up(&byt->boot_wait); +} + +static int sst_byt_process_notification(struct sst_byt *byt, + unsigned long *flags) +{ + struct sst_dsp *sst = byt->dsp; + struct sst_byt_stream *stream; + u64 header; + u8 msg_id, stream_id; + int handled = 1; + + header = sst_dsp_shim_read64_unlocked(sst, SST_IPCD); + msg_id = sst_byt_header_msg_id(header); + + switch (msg_id) { + case IPC_SST_PERIOD_ELAPSED: + stream_id = sst_byt_header_str_id(header); + stream = sst_byt_get_stream(byt, stream_id); + if (stream && stream->running && stream->notify_position) { + spin_unlock_irqrestore(&sst->spinlock, *flags); + stream->notify_position(stream, stream->pdata); + spin_lock_irqsave(&sst->spinlock, *flags); + } + break; + case IPC_IA_FW_INIT_CMPLT: + sst_byt_fw_ready(byt, header); + break; + } + + return handled; +} + +static irqreturn_t sst_byt_irq_thread(int irq, void *context) +{ + struct sst_dsp *sst = (struct sst_dsp *) context; + struct sst_byt *byt = sst_dsp_get_thread_context(sst); + u64 header; + unsigned long flags; + + spin_lock_irqsave(&sst->spinlock, flags); + + header = sst_dsp_shim_read64_unlocked(sst, SST_IPCD); + if (header & SST_BYT_IPCD_BUSY) { + if (header & IPC_NOTIFICATION) { + /* message from ADSP */ + sst_byt_process_notification(byt, &flags); + } else { + /* reply from ADSP */ + sst_byt_process_reply(byt, header); + } + /* + * clear IPCD BUSY bit and set DONE bit. Tell DSP we have + * processed the message and can accept new. Clear data part + * of the header + */ + sst_dsp_shim_update_bits64_unlocked(sst, SST_IPCD, + SST_BYT_IPCD_DONE | SST_BYT_IPCD_BUSY | + IPC_HEADER_DATA(IPC_HEADER_DATA_MASK), + SST_BYT_IPCD_DONE); + /* unmask message request interrupts */ + sst_dsp_shim_update_bits64_unlocked(sst, SST_IMRX, + SST_BYT_IMRX_REQUEST, 0); + } + + spin_unlock_irqrestore(&sst->spinlock, flags); + + /* continue to send any remaining messages... */ + queue_kthread_work(&byt->kworker, &byt->kwork); + + return IRQ_HANDLED; +} + +/* stream API */ +struct sst_byt_stream *sst_byt_stream_new(struct sst_byt *byt, int id, + u32 (*notify_position)(struct sst_byt_stream *stream, void *data), + void *data) +{ + struct sst_byt_stream *stream; + struct sst_dsp *sst = byt->dsp; + unsigned long flags; + + stream = kzalloc(sizeof(*stream), GFP_KERNEL); + if (stream == NULL) + return NULL; + + spin_lock_irqsave(&sst->spinlock, flags); + list_add(&stream->node, &byt->stream_list); + stream->notify_position = notify_position; + stream->pdata = data; + stream->byt = byt; + stream->str_id = id; + spin_unlock_irqrestore(&sst->spinlock, flags); + + return stream; +} + +int sst_byt_stream_set_bits(struct sst_byt *byt, struct sst_byt_stream *stream, + int bits) +{ + stream->request.pcm_params.pcm_wd_sz = bits; + return 0; +} + +int sst_byt_stream_set_channels(struct sst_byt *byt, + struct sst_byt_stream *stream, u8 channels) +{ + stream->request.pcm_params.num_chan = channels; + return 0; +} + +int sst_byt_stream_set_rate(struct sst_byt *byt, struct sst_byt_stream *stream, + unsigned int rate) +{ + stream->request.pcm_params.sfreq = rate; + return 0; +} + +/* stream sonfiguration */ +int sst_byt_stream_type(struct sst_byt *byt, struct sst_byt_stream *stream, + int codec_type, int stream_type, int operation) +{ + stream->request.str_type.codec_type = codec_type; + stream->request.str_type.str_type = stream_type; + stream->request.str_type.operation = operation; + stream->request.str_type.time_slots = 0xc; + + return 0; +} + +int sst_byt_stream_buffer(struct sst_byt *byt, struct sst_byt_stream *stream, + uint32_t buffer_addr, uint32_t buffer_size) +{ + stream->request.frame_info.num_entries = 1; + stream->request.frame_info.ring_buf_info[0].addr = buffer_addr; + stream->request.frame_info.ring_buf_info[0].size = buffer_size; + /* calculate bytes per 4 ms fragment */ + stream->request.frame_info.frag_size = + stream->request.pcm_params.sfreq * + stream->request.pcm_params.num_chan * + stream->request.pcm_params.pcm_wd_sz / 8 * + 4 / 1000; + return 0; +} + +int sst_byt_stream_commit(struct sst_byt *byt, struct sst_byt_stream *stream) +{ + struct sst_byt_alloc_params *str_req = &stream->request; + struct sst_byt_alloc_response *reply = &stream->reply; + u64 header; + int ret; + + header = sst_byt_header(IPC_IA_ALLOC_STREAM, + sizeof(*str_req) + sizeof(u32), + true, stream->str_id); + ret = sst_byt_ipc_tx_msg_wait(byt, header, str_req, sizeof(*str_req), + reply, sizeof(*reply)); + if (ret < 0) { + dev_err(byt->dev, "ipc: error stream commit failed\n"); + return ret; + } + + stream->commited = true; + + return 0; +} + +int sst_byt_stream_free(struct sst_byt *byt, struct sst_byt_stream *stream) +{ + u64 header; + int ret = 0; + struct sst_dsp *sst = byt->dsp; + unsigned long flags; + + if (!stream->commited) + goto out; + + header = sst_byt_header(IPC_IA_FREE_STREAM, 0, false, stream->str_id); + ret = sst_byt_ipc_tx_msg_wait(byt, header, NULL, 0, NULL, 0); + if (ret < 0) { + dev_err(byt->dev, "ipc: free stream %d failed\n", + stream->str_id); + return -EAGAIN; + } + + stream->commited = false; +out: + spin_lock_irqsave(&sst->spinlock, flags); + list_del(&stream->node); + kfree(stream); + spin_unlock_irqrestore(&sst->spinlock, flags); + + return ret; +} + +static int sst_byt_stream_operations(struct sst_byt *byt, int type, + int stream_id, int wait) +{ + u64 header; + + header = sst_byt_header(type, 0, false, stream_id); + if (wait) + return sst_byt_ipc_tx_msg_wait(byt, header, NULL, 0, NULL, 0); + else + return sst_byt_ipc_tx_msg_nowait(byt, header, NULL, 0); +} + +/* stream ALSA trigger operations */ +int sst_byt_stream_start(struct sst_byt *byt, struct sst_byt_stream *stream, + u32 start_offset) +{ + struct sst_byt_start_stream_params start_stream; + void *tx_msg; + size_t size; + u64 header; + int ret; + + start_stream.byte_offset = start_offset; + header = sst_byt_header(IPC_IA_START_STREAM, + sizeof(start_stream) + sizeof(u32), + true, stream->str_id); + tx_msg = &start_stream; + size = sizeof(start_stream); + + ret = sst_byt_ipc_tx_msg_nowait(byt, header, tx_msg, size); + if (ret < 0) + dev_err(byt->dev, "ipc: error failed to start stream %d\n", + stream->str_id); + + return ret; +} + +int sst_byt_stream_stop(struct sst_byt *byt, struct sst_byt_stream *stream) +{ + int ret; + + /* don't stop streams that are not commited */ + if (!stream->commited) + return 0; + + ret = sst_byt_stream_operations(byt, IPC_IA_DROP_STREAM, + stream->str_id, 0); + if (ret < 0) + dev_err(byt->dev, "ipc: error failed to stop stream %d\n", + stream->str_id); + return ret; +} + +int sst_byt_stream_pause(struct sst_byt *byt, struct sst_byt_stream *stream) +{ + int ret; + + ret = sst_byt_stream_operations(byt, IPC_IA_PAUSE_STREAM, + stream->str_id, 0); + if (ret < 0) + dev_err(byt->dev, "ipc: error failed to pause stream %d\n", + stream->str_id); + + return ret; +} + +int sst_byt_stream_resume(struct sst_byt *byt, struct sst_byt_stream *stream) +{ + int ret; + + ret = sst_byt_stream_operations(byt, IPC_IA_RESUME_STREAM, + stream->str_id, 0); + if (ret < 0) + dev_err(byt->dev, "ipc: error failed to resume stream %d\n", + stream->str_id); + + return ret; +} + +int sst_byt_get_dsp_position(struct sst_byt *byt, + struct sst_byt_stream *stream, int buffer_size) +{ + struct sst_dsp *sst = byt->dsp; + struct sst_byt_tstamp fw_tstamp; + u8 str_id = stream->str_id; + u32 tstamp_offset; + + tstamp_offset = SST_BYT_TIMESTAMP_OFFSET + str_id * sizeof(fw_tstamp); + memcpy_fromio(&fw_tstamp, + sst->addr.lpe + tstamp_offset, sizeof(fw_tstamp)); + + return do_div(fw_tstamp.ring_buffer_counter, buffer_size); +} + +static int msg_empty_list_init(struct sst_byt *byt) +{ + struct ipc_message *msg; + int i; + + byt->msg = kzalloc(sizeof(*msg) * IPC_EMPTY_LIST_SIZE, GFP_KERNEL); + if (byt->msg == NULL) + return -ENOMEM; + + for (i = 0; i < IPC_EMPTY_LIST_SIZE; i++) { + init_waitqueue_head(&byt->msg[i].waitq); + list_add(&byt->msg[i].list, &byt->empty_list); + } + + return 0; +} + +struct sst_dsp *sst_byt_get_dsp(struct sst_byt *byt) +{ + return byt->dsp; +} + +static struct sst_dsp_device byt_dev = { + .thread = sst_byt_irq_thread, + .ops = &sst_byt_ops, +}; + +int sst_byt_dsp_suspend_late(struct device *dev, struct sst_pdata *pdata) +{ + struct sst_byt *byt = pdata->dsp; + + dev_dbg(byt->dev, "dsp reset\n"); + sst_dsp_reset(byt->dsp); + sst_byt_drop_all(byt); + dev_dbg(byt->dev, "dsp in reset\n"); + + dev_dbg(byt->dev, "free all blocks and unload fw\n"); + sst_fw_unload(byt->fw); + + return 0; +} +EXPORT_SYMBOL_GPL(sst_byt_dsp_suspend_late); + +int sst_byt_dsp_boot(struct device *dev, struct sst_pdata *pdata) +{ + struct sst_byt *byt = pdata->dsp; + int ret; + + dev_dbg(byt->dev, "reload dsp fw\n"); + + sst_dsp_reset(byt->dsp); + + ret = sst_fw_reload(byt->fw); + if (ret < 0) { + dev_err(dev, "error: failed to reload firmware\n"); + return ret; + } + + /* wait for DSP boot completion */ + byt->boot_complete = false; + sst_dsp_boot(byt->dsp); + dev_dbg(byt->dev, "dsp booting...\n"); + + return 0; +} +EXPORT_SYMBOL_GPL(sst_byt_dsp_boot); + +int sst_byt_dsp_wait_for_ready(struct device *dev, struct sst_pdata *pdata) +{ + struct sst_byt *byt = pdata->dsp; + int err; + + dev_dbg(byt->dev, "wait for dsp reboot\n"); + + err = wait_event_timeout(byt->boot_wait, byt->boot_complete, + msecs_to_jiffies(IPC_BOOT_MSECS)); + if (err == 0) { + dev_err(byt->dev, "ipc: error DSP boot timeout\n"); + return -EIO; + } + + dev_dbg(byt->dev, "dsp rebooted\n"); + return 0; +} +EXPORT_SYMBOL_GPL(sst_byt_dsp_wait_for_ready); + +int sst_byt_dsp_init(struct device *dev, struct sst_pdata *pdata) +{ + struct sst_byt *byt; + struct sst_fw *byt_sst_fw; + struct sst_byt_fw_init init; + int err; + + dev_dbg(dev, "initialising Byt DSP IPC\n"); + + byt = devm_kzalloc(dev, sizeof(*byt), GFP_KERNEL); + if (byt == NULL) + return -ENOMEM; + + byt->dev = dev; + INIT_LIST_HEAD(&byt->stream_list); + INIT_LIST_HEAD(&byt->tx_list); + INIT_LIST_HEAD(&byt->rx_list); + INIT_LIST_HEAD(&byt->empty_list); + init_waitqueue_head(&byt->boot_wait); + init_waitqueue_head(&byt->wait_txq); + + err = msg_empty_list_init(byt); + if (err < 0) + return -ENOMEM; + + /* start the IPC message thread */ + init_kthread_worker(&byt->kworker); + byt->tx_thread = kthread_run(kthread_worker_fn, + &byt->kworker, "%s", + dev_name(byt->dev)); + if (IS_ERR(byt->tx_thread)) { + err = PTR_ERR(byt->tx_thread); + dev_err(byt->dev, "error failed to create message TX task\n"); + goto err_free_msg; + } + init_kthread_work(&byt->kwork, sst_byt_ipc_tx_msgs); + + byt_dev.thread_context = byt; + + /* init SST shim */ + byt->dsp = sst_dsp_new(dev, &byt_dev, pdata); + if (byt->dsp == NULL) { + err = -ENODEV; + goto dsp_err; + } + + /* keep the DSP in reset state for base FW loading */ + sst_dsp_reset(byt->dsp); + + byt_sst_fw = sst_fw_new(byt->dsp, pdata->fw, byt); + if (byt_sst_fw == NULL) { + err = -ENODEV; + dev_err(dev, "error: failed to load firmware\n"); + goto fw_err; + } + + /* wait for DSP boot completion */ + sst_dsp_boot(byt->dsp); + err = wait_event_timeout(byt->boot_wait, byt->boot_complete, + msecs_to_jiffies(IPC_BOOT_MSECS)); + if (err == 0) { + err = -EIO; + dev_err(byt->dev, "ipc: error DSP boot timeout\n"); + goto boot_err; + } + + /* show firmware information */ + sst_dsp_inbox_read(byt->dsp, &init, sizeof(init)); + dev_info(byt->dev, "FW version: %02x.%02x.%02x.%02x\n", + init.fw_version.major, init.fw_version.minor, + init.fw_version.build, init.fw_version.type); + dev_info(byt->dev, "Build type: %x\n", init.fw_version.type); + dev_info(byt->dev, "Build date: %s %s\n", + init.build_info.date, init.build_info.time); + + pdata->dsp = byt; + byt->fw = byt_sst_fw; + + return 0; + +boot_err: + sst_dsp_reset(byt->dsp); + sst_fw_free(byt_sst_fw); +fw_err: + sst_dsp_free(byt->dsp); +dsp_err: + kthread_stop(byt->tx_thread); +err_free_msg: + kfree(byt->msg); + + return err; +} +EXPORT_SYMBOL_GPL(sst_byt_dsp_init); + +void sst_byt_dsp_free(struct device *dev, struct sst_pdata *pdata) +{ + struct sst_byt *byt = pdata->dsp; + + sst_dsp_reset(byt->dsp); + sst_fw_free_all(byt->dsp); + sst_dsp_free(byt->dsp); + kthread_stop(byt->tx_thread); + kfree(byt->msg); +} +EXPORT_SYMBOL_GPL(sst_byt_dsp_free); diff --git a/sound/soc/intel/baytrail/sst-baytrail-ipc.h b/sound/soc/intel/baytrail/sst-baytrail-ipc.h new file mode 100644 index 000000000000..8faff6dcf25d --- /dev/null +++ b/sound/soc/intel/baytrail/sst-baytrail-ipc.h @@ -0,0 +1,73 @@ +/* + * Intel Baytrail SST IPC Support + * Copyright (c) 2014, Intel Corporation. + * + * 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. + */ + +#ifndef __SST_BYT_IPC_H +#define __SST_BYT_IPC_H + +#include + +struct sst_byt; +struct sst_byt_stream; +struct sst_pdata; +extern struct sst_ops sst_byt_ops; + + +#define SST_BYT_MAILBOX_OFFSET 0x144000 +#define SST_BYT_TIMESTAMP_OFFSET (SST_BYT_MAILBOX_OFFSET + 0x800) + +/** + * Upfront defined maximum message size that is + * expected by the in/out communication pipes in FW. + */ +#define SST_BYT_IPC_MAX_PAYLOAD_SIZE 200 + +/* stream API */ +struct sst_byt_stream *sst_byt_stream_new(struct sst_byt *byt, int id, + uint32_t (*get_write_position)(struct sst_byt_stream *stream, + void *data), + void *data); + +/* stream configuration */ +int sst_byt_stream_set_bits(struct sst_byt *byt, struct sst_byt_stream *stream, + int bits); +int sst_byt_stream_set_channels(struct sst_byt *byt, + struct sst_byt_stream *stream, u8 channels); +int sst_byt_stream_set_rate(struct sst_byt *byt, struct sst_byt_stream *stream, + unsigned int rate); +int sst_byt_stream_type(struct sst_byt *byt, struct sst_byt_stream *stream, + int codec_type, int stream_type, int operation); +int sst_byt_stream_buffer(struct sst_byt *byt, struct sst_byt_stream *stream, + uint32_t buffer_addr, uint32_t buffer_size); +int sst_byt_stream_commit(struct sst_byt *byt, struct sst_byt_stream *stream); +int sst_byt_stream_free(struct sst_byt *byt, struct sst_byt_stream *stream); + +/* stream ALSA trigger operations */ +int sst_byt_stream_start(struct sst_byt *byt, struct sst_byt_stream *stream, + u32 start_offset); +int sst_byt_stream_stop(struct sst_byt *byt, struct sst_byt_stream *stream); +int sst_byt_stream_pause(struct sst_byt *byt, struct sst_byt_stream *stream); +int sst_byt_stream_resume(struct sst_byt *byt, struct sst_byt_stream *stream); + +int sst_byt_get_dsp_position(struct sst_byt *byt, + struct sst_byt_stream *stream, int buffer_size); + +/* init */ +int sst_byt_dsp_init(struct device *dev, struct sst_pdata *pdata); +void sst_byt_dsp_free(struct device *dev, struct sst_pdata *pdata); +struct sst_dsp *sst_byt_get_dsp(struct sst_byt *byt); +int sst_byt_dsp_suspend_late(struct device *dev, struct sst_pdata *pdata); +int sst_byt_dsp_boot(struct device *dev, struct sst_pdata *pdata); +int sst_byt_dsp_wait_for_ready(struct device *dev, struct sst_pdata *pdata); + +#endif diff --git a/sound/soc/intel/baytrail/sst-baytrail-pcm.c b/sound/soc/intel/baytrail/sst-baytrail-pcm.c new file mode 100644 index 000000000000..79547bec558b --- /dev/null +++ b/sound/soc/intel/baytrail/sst-baytrail-pcm.c @@ -0,0 +1,505 @@ +/* + * Intel Baytrail SST PCM Support + * Copyright (c) 2014, Intel Corporation. + * + * 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. + */ + +#include +#include +#include +#include +#include +#include +#include +#include "sst-baytrail-ipc.h" +#include "../common/sst-dsp-priv.h" +#include "../common/sst-dsp.h" + +#define BYT_PCM_COUNT 2 + +static const struct snd_pcm_hardware sst_byt_pcm_hardware = { + .info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_PAUSE | + SNDRV_PCM_INFO_RESUME, + .formats = SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S24_LE, + .period_bytes_min = 384, + .period_bytes_max = 48000, + .periods_min = 2, + .periods_max = 250, + .buffer_bytes_max = 96000, +}; + +/* private data for each PCM DSP stream */ +struct sst_byt_pcm_data { + struct sst_byt_stream *stream; + struct snd_pcm_substream *substream; + struct mutex mutex; + + /* latest DSP DMA hw pointer */ + u32 hw_ptr; + + struct work_struct work; +}; + +/* private data for the driver */ +struct sst_byt_priv_data { + /* runtime DSP */ + struct sst_byt *byt; + + /* DAI data */ + struct sst_byt_pcm_data pcm[BYT_PCM_COUNT]; + + /* flag indicating is stream context restore needed after suspend */ + bool restore_stream; +}; + +/* this may get called several times by oss emulation */ +static int sst_byt_pcm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct sst_byt_priv_data *pdata = + snd_soc_platform_get_drvdata(rtd->platform); + struct sst_byt_pcm_data *pcm_data = &pdata->pcm[substream->stream]; + struct sst_byt *byt = pdata->byt; + u32 rate, bits; + u8 channels; + int ret, playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK); + + dev_dbg(rtd->dev, "PCM: hw_params, pcm_data %p\n", pcm_data); + + ret = sst_byt_stream_type(byt, pcm_data->stream, + 1, 1, !playback); + if (ret < 0) { + dev_err(rtd->dev, "failed to set stream format %d\n", ret); + return ret; + } + + rate = params_rate(params); + ret = sst_byt_stream_set_rate(byt, pcm_data->stream, rate); + if (ret < 0) { + dev_err(rtd->dev, "could not set rate %d\n", rate); + return ret; + } + + bits = snd_pcm_format_width(params_format(params)); + ret = sst_byt_stream_set_bits(byt, pcm_data->stream, bits); + if (ret < 0) { + dev_err(rtd->dev, "could not set formats %d\n", + params_rate(params)); + return ret; + } + + channels = (u8)(params_channels(params) & 0xF); + ret = sst_byt_stream_set_channels(byt, pcm_data->stream, channels); + if (ret < 0) { + dev_err(rtd->dev, "could not set channels %d\n", + params_rate(params)); + return ret; + } + + snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); + + ret = sst_byt_stream_buffer(byt, pcm_data->stream, + substream->dma_buffer.addr, + params_buffer_bytes(params)); + if (ret < 0) { + dev_err(rtd->dev, "PCM: failed to set DMA buffer %d\n", ret); + return ret; + } + + ret = sst_byt_stream_commit(byt, pcm_data->stream); + if (ret < 0) { + dev_err(rtd->dev, "PCM: failed stream commit %d\n", ret); + return ret; + } + + return 0; +} + +static int sst_byt_pcm_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + + dev_dbg(rtd->dev, "PCM: hw_free\n"); + snd_pcm_lib_free_pages(substream); + + return 0; +} + +static int sst_byt_pcm_restore_stream_context(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct sst_byt_priv_data *pdata = + snd_soc_platform_get_drvdata(rtd->platform); + struct sst_byt_pcm_data *pcm_data = &pdata->pcm[substream->stream]; + struct sst_byt *byt = pdata->byt; + int ret; + + /* commit stream using existing stream params */ + ret = sst_byt_stream_commit(byt, pcm_data->stream); + if (ret < 0) { + dev_err(rtd->dev, "PCM: failed stream commit %d\n", ret); + return ret; + } + + sst_byt_stream_start(byt, pcm_data->stream, pcm_data->hw_ptr); + + dev_dbg(rtd->dev, "stream context restored at offset %d\n", + pcm_data->hw_ptr); + + return 0; +} + +static void sst_byt_pcm_work(struct work_struct *work) +{ + struct sst_byt_pcm_data *pcm_data = + container_of(work, struct sst_byt_pcm_data, work); + + if (snd_pcm_running(pcm_data->substream)) + sst_byt_pcm_restore_stream_context(pcm_data->substream); +} + +static int sst_byt_pcm_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct sst_byt_priv_data *pdata = + snd_soc_platform_get_drvdata(rtd->platform); + struct sst_byt_pcm_data *pcm_data = &pdata->pcm[substream->stream]; + struct sst_byt *byt = pdata->byt; + + dev_dbg(rtd->dev, "PCM: trigger %d\n", cmd); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + pcm_data->hw_ptr = 0; + sst_byt_stream_start(byt, pcm_data->stream, 0); + break; + case SNDRV_PCM_TRIGGER_RESUME: + if (pdata->restore_stream == true) + schedule_work(&pcm_data->work); + else + sst_byt_stream_resume(byt, pcm_data->stream); + break; + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + sst_byt_stream_resume(byt, pcm_data->stream); + break; + case SNDRV_PCM_TRIGGER_STOP: + sst_byt_stream_stop(byt, pcm_data->stream); + break; + case SNDRV_PCM_TRIGGER_SUSPEND: + pdata->restore_stream = false; + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + sst_byt_stream_pause(byt, pcm_data->stream); + break; + default: + break; + } + + return 0; +} + +static u32 byt_notify_pointer(struct sst_byt_stream *stream, void *data) +{ + struct sst_byt_pcm_data *pcm_data = data; + struct snd_pcm_substream *substream = pcm_data->substream; + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct sst_byt_priv_data *pdata = + snd_soc_platform_get_drvdata(rtd->platform); + struct sst_byt *byt = pdata->byt; + u32 pos, hw_pos; + + hw_pos = sst_byt_get_dsp_position(byt, pcm_data->stream, + snd_pcm_lib_buffer_bytes(substream)); + pcm_data->hw_ptr = hw_pos; + pos = frames_to_bytes(runtime, + (runtime->control->appl_ptr % + runtime->buffer_size)); + + dev_dbg(rtd->dev, "PCM: App/DMA pointer %u/%u bytes\n", pos, hw_pos); + + snd_pcm_period_elapsed(substream); + return pos; +} + +static snd_pcm_uframes_t sst_byt_pcm_pointer(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_pcm_runtime *runtime = substream->runtime; + struct sst_byt_priv_data *pdata = + snd_soc_platform_get_drvdata(rtd->platform); + struct sst_byt_pcm_data *pcm_data = &pdata->pcm[substream->stream]; + + dev_dbg(rtd->dev, "PCM: DMA pointer %u bytes\n", pcm_data->hw_ptr); + + return bytes_to_frames(runtime, pcm_data->hw_ptr); +} + +static int sst_byt_pcm_open(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct sst_byt_priv_data *pdata = + snd_soc_platform_get_drvdata(rtd->platform); + struct sst_byt_pcm_data *pcm_data = &pdata->pcm[substream->stream]; + struct sst_byt *byt = pdata->byt; + + dev_dbg(rtd->dev, "PCM: open\n"); + + mutex_lock(&pcm_data->mutex); + + pcm_data->substream = substream; + + snd_soc_set_runtime_hwparams(substream, &sst_byt_pcm_hardware); + + pcm_data->stream = sst_byt_stream_new(byt, substream->stream + 1, + byt_notify_pointer, pcm_data); + if (pcm_data->stream == NULL) { + dev_err(rtd->dev, "failed to create stream\n"); + mutex_unlock(&pcm_data->mutex); + return -EINVAL; + } + + mutex_unlock(&pcm_data->mutex); + return 0; +} + +static int sst_byt_pcm_close(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct sst_byt_priv_data *pdata = + snd_soc_platform_get_drvdata(rtd->platform); + struct sst_byt_pcm_data *pcm_data = &pdata->pcm[substream->stream]; + struct sst_byt *byt = pdata->byt; + int ret; + + dev_dbg(rtd->dev, "PCM: close\n"); + + cancel_work_sync(&pcm_data->work); + mutex_lock(&pcm_data->mutex); + ret = sst_byt_stream_free(byt, pcm_data->stream); + if (ret < 0) { + dev_dbg(rtd->dev, "Free stream fail\n"); + goto out; + } + pcm_data->stream = NULL; + +out: + mutex_unlock(&pcm_data->mutex); + return ret; +} + +static int sst_byt_pcm_mmap(struct snd_pcm_substream *substream, + struct vm_area_struct *vma) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + + dev_dbg(rtd->dev, "PCM: mmap\n"); + return snd_pcm_lib_default_mmap(substream, vma); +} + +static struct snd_pcm_ops sst_byt_pcm_ops = { + .open = sst_byt_pcm_open, + .close = sst_byt_pcm_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = sst_byt_pcm_hw_params, + .hw_free = sst_byt_pcm_hw_free, + .trigger = sst_byt_pcm_trigger, + .pointer = sst_byt_pcm_pointer, + .mmap = sst_byt_pcm_mmap, +}; + +static int sst_byt_pcm_new(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_pcm *pcm = rtd->pcm; + size_t size; + struct snd_soc_platform *platform = rtd->platform; + struct sst_pdata *pdata = dev_get_platdata(platform->dev); + int ret = 0; + + if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream || + pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) { + size = sst_byt_pcm_hardware.buffer_bytes_max; + ret = snd_pcm_lib_preallocate_pages_for_all(pcm, + SNDRV_DMA_TYPE_DEV, + pdata->dma_dev, + size, size); + if (ret) { + dev_err(rtd->dev, "dma buffer allocation failed %d\n", + ret); + return ret; + } + } + + return ret; +} + +static struct snd_soc_dai_driver byt_dais[] = { + { + .name = "Baytrail PCM", + .playback = { + .stream_name = "System Playback", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_48000, + .formats = SNDRV_PCM_FMTBIT_S24_3LE | + SNDRV_PCM_FMTBIT_S16_LE, + }, + .capture = { + .stream_name = "Analog Capture", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + }, +}; + +static int sst_byt_pcm_probe(struct snd_soc_platform *platform) +{ + struct sst_pdata *plat_data = dev_get_platdata(platform->dev); + struct sst_byt_priv_data *priv_data; + int i; + + if (!plat_data) + return -ENODEV; + + priv_data = devm_kzalloc(platform->dev, sizeof(*priv_data), + GFP_KERNEL); + priv_data->byt = plat_data->dsp; + snd_soc_platform_set_drvdata(platform, priv_data); + + for (i = 0; i < BYT_PCM_COUNT; i++) { + mutex_init(&priv_data->pcm[i].mutex); + INIT_WORK(&priv_data->pcm[i].work, sst_byt_pcm_work); + } + + return 0; +} + +static int sst_byt_pcm_remove(struct snd_soc_platform *platform) +{ + return 0; +} + +static struct snd_soc_platform_driver byt_soc_platform = { + .probe = sst_byt_pcm_probe, + .remove = sst_byt_pcm_remove, + .ops = &sst_byt_pcm_ops, + .pcm_new = sst_byt_pcm_new, +}; + +static const struct snd_soc_component_driver byt_dai_component = { + .name = "byt-dai", +}; + +#ifdef CONFIG_PM +static int sst_byt_pcm_dev_suspend_late(struct device *dev) +{ + struct sst_pdata *sst_pdata = dev_get_platdata(dev); + struct sst_byt_priv_data *priv_data = dev_get_drvdata(dev); + int ret; + + dev_dbg(dev, "suspending late\n"); + + ret = sst_byt_dsp_suspend_late(dev, sst_pdata); + if (ret < 0) { + dev_err(dev, "failed to suspend %d\n", ret); + return ret; + } + + priv_data->restore_stream = true; + + return ret; +} + +static int sst_byt_pcm_dev_resume_early(struct device *dev) +{ + struct sst_pdata *sst_pdata = dev_get_platdata(dev); + int ret; + + dev_dbg(dev, "resume early\n"); + + /* load fw and boot DSP */ + ret = sst_byt_dsp_boot(dev, sst_pdata); + if (ret) + return ret; + + /* wait for FW to finish booting */ + return sst_byt_dsp_wait_for_ready(dev, sst_pdata); +} + +static const struct dev_pm_ops sst_byt_pm_ops = { + .suspend_late = sst_byt_pcm_dev_suspend_late, + .resume_early = sst_byt_pcm_dev_resume_early, +}; + +#define SST_BYT_PM_OPS (&sst_byt_pm_ops) +#else +#define SST_BYT_PM_OPS NULL +#endif + +static int sst_byt_pcm_dev_probe(struct platform_device *pdev) +{ + struct sst_pdata *sst_pdata = dev_get_platdata(&pdev->dev); + int ret; + + ret = sst_byt_dsp_init(&pdev->dev, sst_pdata); + if (ret < 0) + return -ENODEV; + + ret = snd_soc_register_platform(&pdev->dev, &byt_soc_platform); + if (ret < 0) + goto err_plat; + + ret = snd_soc_register_component(&pdev->dev, &byt_dai_component, + byt_dais, ARRAY_SIZE(byt_dais)); + if (ret < 0) + goto err_comp; + + return 0; + +err_comp: + snd_soc_unregister_platform(&pdev->dev); +err_plat: + sst_byt_dsp_free(&pdev->dev, sst_pdata); + return ret; +} + +static int sst_byt_pcm_dev_remove(struct platform_device *pdev) +{ + struct sst_pdata *sst_pdata = dev_get_platdata(&pdev->dev); + + snd_soc_unregister_platform(&pdev->dev); + snd_soc_unregister_component(&pdev->dev); + sst_byt_dsp_free(&pdev->dev, sst_pdata); + + return 0; +} + +static struct platform_driver sst_byt_pcm_driver = { + .driver = { + .name = "baytrail-pcm-audio", + .pm = SST_BYT_PM_OPS, + }, + + .probe = sst_byt_pcm_dev_probe, + .remove = sst_byt_pcm_dev_remove, +}; +module_platform_driver(sst_byt_pcm_driver); + +MODULE_AUTHOR("Jarkko Nikula"); +MODULE_DESCRIPTION("Baytrail PCM"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:baytrail-pcm-audio"); diff --git a/sound/soc/intel/sst-baytrail-dsp.c b/sound/soc/intel/sst-baytrail-dsp.c deleted file mode 100644 index 5a9e56700f31..000000000000 --- a/sound/soc/intel/sst-baytrail-dsp.c +++ /dev/null @@ -1,366 +0,0 @@ -/* - * Intel Baytrail SST DSP driver - * Copyright (c) 2014, Intel Corporation. - * - * 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. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "sst-dsp.h" -#include "sst-dsp-priv.h" -#include "sst-baytrail-ipc.h" - -#define SST_BYT_FW_SIGNATURE_SIZE 4 -#define SST_BYT_FW_SIGN "$SST" - -#define SST_BYT_IRAM_OFFSET 0xC0000 -#define SST_BYT_DRAM_OFFSET 0x100000 -#define SST_BYT_SHIM_OFFSET 0x140000 - -enum sst_ram_type { - SST_BYT_IRAM = 1, - SST_BYT_DRAM = 2, - SST_BYT_CACHE = 3, -}; - -struct dma_block_info { - enum sst_ram_type type; /* IRAM/DRAM */ - u32 size; /* Bytes */ - u32 ram_offset; /* Offset in I/DRAM */ - u32 rsvd; /* Reserved field */ -}; - -struct fw_header { - unsigned char signature[SST_BYT_FW_SIGNATURE_SIZE]; - u32 file_size; /* size of fw minus this header */ - u32 modules; /* # of modules */ - u32 file_format; /* version of header format */ - u32 reserved[4]; -}; - -struct sst_byt_fw_module_header { - unsigned char signature[SST_BYT_FW_SIGNATURE_SIZE]; - u32 mod_size; /* size of module */ - u32 blocks; /* # of blocks */ - u32 type; /* codec type, pp lib */ - u32 entry_point; -}; - -static int sst_byt_parse_module(struct sst_dsp *dsp, struct sst_fw *fw, - struct sst_byt_fw_module_header *module) -{ - struct dma_block_info *block; - struct sst_module *mod; - struct sst_module_template template; - int count; - - memset(&template, 0, sizeof(template)); - template.id = module->type; - template.entry = module->entry_point; - - mod = sst_module_new(fw, &template, NULL); - if (mod == NULL) - return -ENOMEM; - - block = (void *)module + sizeof(*module); - - for (count = 0; count < module->blocks; count++) { - - if (block->size <= 0) { - dev_err(dsp->dev, "block %d size invalid\n", count); - return -EINVAL; - } - - switch (block->type) { - case SST_BYT_IRAM: - mod->offset = block->ram_offset + - dsp->addr.iram_offset; - mod->type = SST_MEM_IRAM; - break; - case SST_BYT_DRAM: - mod->offset = block->ram_offset + - dsp->addr.dram_offset; - mod->type = SST_MEM_DRAM; - break; - case SST_BYT_CACHE: - mod->offset = block->ram_offset + - (dsp->addr.fw_ext - dsp->addr.lpe); - mod->type = SST_MEM_CACHE; - break; - default: - dev_err(dsp->dev, "wrong ram type 0x%x in block0x%x\n", - block->type, count); - return -EINVAL; - } - - mod->size = block->size; - mod->data = (void *)block + sizeof(*block); - - sst_module_alloc_blocks(mod); - - block = (void *)block + sizeof(*block) + block->size; - } - return 0; -} - -static int sst_byt_parse_fw_image(struct sst_fw *sst_fw) -{ - struct fw_header *header; - struct sst_byt_fw_module_header *module; - struct sst_dsp *dsp = sst_fw->dsp; - int ret, count; - - /* Read the header information from the data pointer */ - header = (struct fw_header *)sst_fw->dma_buf; - - /* verify FW */ - if ((strncmp(header->signature, SST_BYT_FW_SIGN, 4) != 0) || - (sst_fw->size != header->file_size + sizeof(*header))) { - /* Invalid FW signature */ - dev_err(dsp->dev, "Invalid FW sign/filesize mismatch\n"); - return -EINVAL; - } - - dev_dbg(dsp->dev, - "header sign=%4s size=0x%x modules=0x%x fmt=0x%x size=%zu\n", - header->signature, header->file_size, header->modules, - header->file_format, sizeof(*header)); - - module = (void *)sst_fw->dma_buf + sizeof(*header); - for (count = 0; count < header->modules; count++) { - /* module */ - ret = sst_byt_parse_module(dsp, sst_fw, module); - if (ret < 0) { - dev_err(dsp->dev, "invalid module %d\n", count); - return ret; - } - module = (void *)module + sizeof(*module) + module->mod_size; - } - - return 0; -} - -static void sst_byt_dump_shim(struct sst_dsp *sst) -{ - int i; - u64 reg; - - for (i = 0; i <= 0xF0; i += 8) { - reg = sst_dsp_shim_read64_unlocked(sst, i); - if (reg) - dev_dbg(sst->dev, "shim 0x%2.2x value 0x%16.16llx\n", - i, reg); - } - - for (i = 0x00; i <= 0xff; i += 4) { - reg = readl(sst->addr.pci_cfg + i); - if (reg) - dev_dbg(sst->dev, "pci 0x%2.2x value 0x%8.8x\n", - i, (u32)reg); - } -} - -static irqreturn_t sst_byt_irq(int irq, void *context) -{ - struct sst_dsp *sst = (struct sst_dsp *) context; - u64 isrx; - irqreturn_t ret = IRQ_NONE; - - spin_lock(&sst->spinlock); - - isrx = sst_dsp_shim_read64_unlocked(sst, SST_ISRX); - if (isrx & SST_ISRX_DONE) { - /* ADSP has processed the message request from IA */ - sst_dsp_shim_update_bits64_unlocked(sst, SST_IPCX, - SST_BYT_IPCX_DONE, 0); - ret = IRQ_WAKE_THREAD; - } - if (isrx & SST_BYT_ISRX_REQUEST) { - /* mask message request from ADSP and do processing later */ - sst_dsp_shim_update_bits64_unlocked(sst, SST_IMRX, - SST_BYT_IMRX_REQUEST, - SST_BYT_IMRX_REQUEST); - ret = IRQ_WAKE_THREAD; - } - - spin_unlock(&sst->spinlock); - - return ret; -} - -static void sst_byt_boot(struct sst_dsp *sst) -{ - int tries = 10; - - /* - * save the physical address of extended firmware block in the first - * 4 bytes of the mailbox - */ - memcpy_toio(sst->addr.lpe + SST_BYT_MAILBOX_OFFSET, - &sst->pdata->fw_base, sizeof(u32)); - - /* release stall and wait to unstall */ - sst_dsp_shim_update_bits64(sst, SST_CSR, SST_BYT_CSR_STALL, 0x0); - while (tries--) { - if (!(sst_dsp_shim_read64(sst, SST_CSR) & - SST_BYT_CSR_PWAITMODE)) - break; - msleep(100); - } - if (tries < 0) { - dev_err(sst->dev, "unable to start DSP\n"); - sst_byt_dump_shim(sst); - } -} - -static void sst_byt_reset(struct sst_dsp *sst) -{ - /* put DSP into reset, set reset vector and stall */ - sst_dsp_shim_update_bits64(sst, SST_CSR, - SST_BYT_CSR_RST | SST_BYT_CSR_VECTOR_SEL | SST_BYT_CSR_STALL, - SST_BYT_CSR_RST | SST_BYT_CSR_VECTOR_SEL | SST_BYT_CSR_STALL); - - udelay(10); - - /* take DSP out of reset and keep stalled for FW loading */ - sst_dsp_shim_update_bits64(sst, SST_CSR, SST_BYT_CSR_RST, 0); -} - -struct sst_adsp_memregion { - u32 start; - u32 end; - int blocks; - enum sst_mem_type type; -}; - -/* BYT test stuff */ -static const struct sst_adsp_memregion byt_region[] = { - {0xC0000, 0x100000, 8, SST_MEM_IRAM}, /* I-SRAM - 8 * 32kB */ - {0x100000, 0x140000, 8, SST_MEM_DRAM}, /* D-SRAM0 - 8 * 32kB */ -}; - -static int sst_byt_resource_map(struct sst_dsp *sst, struct sst_pdata *pdata) -{ - sst->addr.lpe_base = pdata->lpe_base; - sst->addr.lpe = ioremap(pdata->lpe_base, pdata->lpe_size); - if (!sst->addr.lpe) - return -ENODEV; - - /* ADSP PCI MMIO config space */ - sst->addr.pci_cfg = ioremap(pdata->pcicfg_base, pdata->pcicfg_size); - if (!sst->addr.pci_cfg) { - iounmap(sst->addr.lpe); - return -ENODEV; - } - - /* SST Extended FW allocation */ - sst->addr.fw_ext = ioremap(pdata->fw_base, pdata->fw_size); - if (!sst->addr.fw_ext) { - iounmap(sst->addr.pci_cfg); - iounmap(sst->addr.lpe); - return -ENODEV; - } - - /* SST Shim */ - sst->addr.shim = sst->addr.lpe + sst->addr.shim_offset; - - sst_dsp_mailbox_init(sst, SST_BYT_MAILBOX_OFFSET + 0x204, - SST_BYT_IPC_MAX_PAYLOAD_SIZE, - SST_BYT_MAILBOX_OFFSET, - SST_BYT_IPC_MAX_PAYLOAD_SIZE); - - sst->irq = pdata->irq; - - return 0; -} - -static int sst_byt_init(struct sst_dsp *sst, struct sst_pdata *pdata) -{ - const struct sst_adsp_memregion *region; - struct device *dev; - int ret = -ENODEV, i, j, region_count; - u32 offset, size; - - dev = sst->dev; - - switch (sst->id) { - case SST_DEV_ID_BYT: - region = byt_region; - region_count = ARRAY_SIZE(byt_region); - sst->addr.iram_offset = SST_BYT_IRAM_OFFSET; - sst->addr.dram_offset = SST_BYT_DRAM_OFFSET; - sst->addr.shim_offset = SST_BYT_SHIM_OFFSET; - break; - default: - dev_err(dev, "failed to get mem resources\n"); - return ret; - } - - ret = sst_byt_resource_map(sst, pdata); - if (ret < 0) { - dev_err(dev, "failed to map resources\n"); - return ret; - } - - ret = dma_coerce_mask_and_coherent(sst->dma_dev, DMA_BIT_MASK(32)); - if (ret) - return ret; - - /* enable Interrupt from both sides */ - sst_dsp_shim_update_bits64(sst, SST_IMRX, 0x3, 0x0); - sst_dsp_shim_update_bits64(sst, SST_IMRD, 0x3, 0x0); - - /* register DSP memory blocks - ideally we should get this from ACPI */ - for (i = 0; i < region_count; i++) { - offset = region[i].start; - size = (region[i].end - region[i].start) / region[i].blocks; - - /* register individual memory blocks */ - for (j = 0; j < region[i].blocks; j++) { - sst_mem_block_register(sst, offset, size, - region[i].type, NULL, j, sst); - offset += size; - } - } - - return 0; -} - -static void sst_byt_free(struct sst_dsp *sst) -{ - sst_mem_block_unregister_all(sst); - iounmap(sst->addr.lpe); - iounmap(sst->addr.pci_cfg); - iounmap(sst->addr.fw_ext); -} - -struct sst_ops sst_byt_ops = { - .reset = sst_byt_reset, - .boot = sst_byt_boot, - .write = sst_shim32_write, - .read = sst_shim32_read, - .write64 = sst_shim32_write64, - .read64 = sst_shim32_read64, - .ram_read = sst_memcpy_fromio_32, - .ram_write = sst_memcpy_toio_32, - .irq_handler = sst_byt_irq, - .init = sst_byt_init, - .free = sst_byt_free, - .parse_fw = sst_byt_parse_fw_image, -}; diff --git a/sound/soc/intel/sst-baytrail-ipc.c b/sound/soc/intel/sst-baytrail-ipc.c deleted file mode 100644 index b4ad98c43e5c..000000000000 --- a/sound/soc/intel/sst-baytrail-ipc.c +++ /dev/null @@ -1,983 +0,0 @@ -/* - * Intel Baytrail SST IPC Support - * Copyright (c) 2014, Intel Corporation. - * - * 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. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "sst-baytrail-ipc.h" -#include "sst-dsp.h" -#include "sst-dsp-priv.h" - -/* IPC message timeout */ -#define IPC_TIMEOUT_MSECS 300 -#define IPC_BOOT_MSECS 200 - -#define IPC_EMPTY_LIST_SIZE 8 - -/* IPC header bits */ -#define IPC_HEADER_MSG_ID_MASK 0xff -#define IPC_HEADER_MSG_ID(x) ((x) & IPC_HEADER_MSG_ID_MASK) -#define IPC_HEADER_STR_ID_SHIFT 8 -#define IPC_HEADER_STR_ID_MASK 0x1f -#define IPC_HEADER_STR_ID(x) (((x) & 0x1f) << IPC_HEADER_STR_ID_SHIFT) -#define IPC_HEADER_LARGE_SHIFT 13 -#define IPC_HEADER_LARGE(x) (((x) & 0x1) << IPC_HEADER_LARGE_SHIFT) -#define IPC_HEADER_DATA_SHIFT 16 -#define IPC_HEADER_DATA_MASK 0x3fff -#define IPC_HEADER_DATA(x) (((x) & 0x3fff) << IPC_HEADER_DATA_SHIFT) - -/* mask for differentiating between notification and reply message */ -#define IPC_NOTIFICATION (0x1 << 7) - -/* I2L Stream config/control msgs */ -#define IPC_IA_ALLOC_STREAM 0x20 -#define IPC_IA_FREE_STREAM 0x21 -#define IPC_IA_PAUSE_STREAM 0x24 -#define IPC_IA_RESUME_STREAM 0x25 -#define IPC_IA_DROP_STREAM 0x26 -#define IPC_IA_START_STREAM 0x30 - -/* notification messages */ -#define IPC_IA_FW_INIT_CMPLT 0x81 -#define IPC_SST_PERIOD_ELAPSED 0x97 - -/* IPC messages between host and ADSP */ -struct sst_byt_address_info { - u32 addr; - u32 size; -} __packed; - -struct sst_byt_str_type { - u8 codec_type; - u8 str_type; - u8 operation; - u8 protected_str; - u8 time_slots; - u8 reserved; - u16 result; -} __packed; - -struct sst_byt_pcm_params { - u8 num_chan; - u8 pcm_wd_sz; - u8 use_offload_path; - u8 reserved; - u32 sfreq; - u8 channel_map[8]; -} __packed; - -struct sst_byt_frames_info { - u16 num_entries; - u16 rsrvd; - u32 frag_size; - struct sst_byt_address_info ring_buf_info[8]; -} __packed; - -struct sst_byt_alloc_params { - struct sst_byt_str_type str_type; - struct sst_byt_pcm_params pcm_params; - struct sst_byt_frames_info frame_info; -} __packed; - -struct sst_byt_alloc_response { - struct sst_byt_str_type str_type; - u8 reserved[88]; -} __packed; - -struct sst_byt_start_stream_params { - u32 byte_offset; -} __packed; - -struct sst_byt_tstamp { - u64 ring_buffer_counter; - u64 hardware_counter; - u64 frames_decoded; - u64 bytes_decoded; - u64 bytes_copied; - u32 sampling_frequency; - u32 channel_peak[8]; -} __packed; - -struct sst_byt_fw_version { - u8 build; - u8 minor; - u8 major; - u8 type; -} __packed; - -struct sst_byt_fw_build_info { - u8 date[16]; - u8 time[16]; -} __packed; - -struct sst_byt_fw_init { - struct sst_byt_fw_version fw_version; - struct sst_byt_fw_build_info build_info; - u16 result; - u8 module_id; - u8 debug_info; -} __packed; - -/* driver internal IPC message structure */ -struct ipc_message { - struct list_head list; - u64 header; - - /* direction wrt host CPU */ - char tx_data[SST_BYT_IPC_MAX_PAYLOAD_SIZE]; - size_t tx_size; - char rx_data[SST_BYT_IPC_MAX_PAYLOAD_SIZE]; - size_t rx_size; - - wait_queue_head_t waitq; - bool complete; - bool wait; - int errno; -}; - -struct sst_byt_stream; -struct sst_byt; - -/* stream infomation */ -struct sst_byt_stream { - struct list_head node; - - /* configuration */ - struct sst_byt_alloc_params request; - struct sst_byt_alloc_response reply; - - /* runtime info */ - struct sst_byt *byt; - int str_id; - bool commited; - bool running; - - /* driver callback */ - u32 (*notify_position)(struct sst_byt_stream *stream, void *data); - void *pdata; -}; - -/* SST Baytrail IPC data */ -struct sst_byt { - struct device *dev; - struct sst_dsp *dsp; - - /* stream */ - struct list_head stream_list; - - /* boot */ - wait_queue_head_t boot_wait; - bool boot_complete; - struct sst_fw *fw; - - /* IPC messaging */ - struct list_head tx_list; - struct list_head rx_list; - struct list_head empty_list; - wait_queue_head_t wait_txq; - struct task_struct *tx_thread; - struct kthread_worker kworker; - struct kthread_work kwork; - struct ipc_message *msg; -}; - -static inline u64 sst_byt_header(int msg_id, int data, bool large, int str_id) -{ - u64 header; - - header = IPC_HEADER_MSG_ID(msg_id) | - IPC_HEADER_STR_ID(str_id) | - IPC_HEADER_LARGE(large) | - IPC_HEADER_DATA(data) | - SST_BYT_IPCX_BUSY; - - return header; -} - -static inline u16 sst_byt_header_msg_id(u64 header) -{ - return header & IPC_HEADER_MSG_ID_MASK; -} - -static inline u8 sst_byt_header_str_id(u64 header) -{ - return (header >> IPC_HEADER_STR_ID_SHIFT) & IPC_HEADER_STR_ID_MASK; -} - -static inline u16 sst_byt_header_data(u64 header) -{ - return (header >> IPC_HEADER_DATA_SHIFT) & IPC_HEADER_DATA_MASK; -} - -static struct sst_byt_stream *sst_byt_get_stream(struct sst_byt *byt, - int stream_id) -{ - struct sst_byt_stream *stream; - - list_for_each_entry(stream, &byt->stream_list, node) { - if (stream->str_id == stream_id) - return stream; - } - - return NULL; -} - -static void sst_byt_ipc_shim_dbg(struct sst_byt *byt, const char *text) -{ - struct sst_dsp *sst = byt->dsp; - u64 isr, ipcd, imrx, ipcx; - - ipcx = sst_dsp_shim_read64_unlocked(sst, SST_IPCX); - isr = sst_dsp_shim_read64_unlocked(sst, SST_ISRX); - ipcd = sst_dsp_shim_read64_unlocked(sst, SST_IPCD); - imrx = sst_dsp_shim_read64_unlocked(sst, SST_IMRX); - - dev_err(byt->dev, - "ipc: --%s-- ipcx 0x%llx isr 0x%llx ipcd 0x%llx imrx 0x%llx\n", - text, ipcx, isr, ipcd, imrx); -} - -/* locks held by caller */ -static struct ipc_message *sst_byt_msg_get_empty(struct sst_byt *byt) -{ - struct ipc_message *msg = NULL; - - if (!list_empty(&byt->empty_list)) { - msg = list_first_entry(&byt->empty_list, - struct ipc_message, list); - list_del(&msg->list); - } - - return msg; -} - -static void sst_byt_ipc_tx_msgs(struct kthread_work *work) -{ - struct sst_byt *byt = - container_of(work, struct sst_byt, kwork); - struct ipc_message *msg; - u64 ipcx; - unsigned long flags; - - spin_lock_irqsave(&byt->dsp->spinlock, flags); - if (list_empty(&byt->tx_list)) { - spin_unlock_irqrestore(&byt->dsp->spinlock, flags); - return; - } - - /* if the DSP is busy we will TX messages after IRQ */ - ipcx = sst_dsp_shim_read64_unlocked(byt->dsp, SST_IPCX); - if (ipcx & SST_BYT_IPCX_BUSY) { - spin_unlock_irqrestore(&byt->dsp->spinlock, flags); - return; - } - - msg = list_first_entry(&byt->tx_list, struct ipc_message, list); - - list_move(&msg->list, &byt->rx_list); - - /* send the message */ - if (msg->header & IPC_HEADER_LARGE(true)) - sst_dsp_outbox_write(byt->dsp, msg->tx_data, msg->tx_size); - sst_dsp_shim_write64_unlocked(byt->dsp, SST_IPCX, msg->header); - - spin_unlock_irqrestore(&byt->dsp->spinlock, flags); -} - -static inline void sst_byt_tx_msg_reply_complete(struct sst_byt *byt, - struct ipc_message *msg) -{ - msg->complete = true; - - if (!msg->wait) - list_add_tail(&msg->list, &byt->empty_list); - else - wake_up(&msg->waitq); -} - -static void sst_byt_drop_all(struct sst_byt *byt) -{ - struct ipc_message *msg, *tmp; - unsigned long flags; - - /* drop all TX and Rx messages before we stall + reset DSP */ - spin_lock_irqsave(&byt->dsp->spinlock, flags); - list_for_each_entry_safe(msg, tmp, &byt->tx_list, list) { - list_move(&msg->list, &byt->empty_list); - } - - list_for_each_entry_safe(msg, tmp, &byt->rx_list, list) { - list_move(&msg->list, &byt->empty_list); - } - - spin_unlock_irqrestore(&byt->dsp->spinlock, flags); -} - -static int sst_byt_tx_wait_done(struct sst_byt *byt, struct ipc_message *msg, - void *rx_data) -{ - unsigned long flags; - int ret; - - /* wait for DSP completion */ - ret = wait_event_timeout(msg->waitq, msg->complete, - msecs_to_jiffies(IPC_TIMEOUT_MSECS)); - - spin_lock_irqsave(&byt->dsp->spinlock, flags); - if (ret == 0) { - list_del(&msg->list); - sst_byt_ipc_shim_dbg(byt, "message timeout"); - - ret = -ETIMEDOUT; - } else { - - /* copy the data returned from DSP */ - if (msg->rx_size) - memcpy(rx_data, msg->rx_data, msg->rx_size); - ret = msg->errno; - } - - list_add_tail(&msg->list, &byt->empty_list); - spin_unlock_irqrestore(&byt->dsp->spinlock, flags); - return ret; -} - -static int sst_byt_ipc_tx_message(struct sst_byt *byt, u64 header, - void *tx_data, size_t tx_bytes, - void *rx_data, size_t rx_bytes, int wait) -{ - unsigned long flags; - struct ipc_message *msg; - - spin_lock_irqsave(&byt->dsp->spinlock, flags); - - msg = sst_byt_msg_get_empty(byt); - if (msg == NULL) { - spin_unlock_irqrestore(&byt->dsp->spinlock, flags); - return -EBUSY; - } - - msg->header = header; - msg->tx_size = tx_bytes; - msg->rx_size = rx_bytes; - msg->wait = wait; - msg->errno = 0; - msg->complete = false; - - if (tx_bytes) { - /* msg content = lower 32-bit of the header + data */ - *(u32 *)msg->tx_data = (u32)(header & (u32)-1); - memcpy(msg->tx_data + sizeof(u32), tx_data, tx_bytes); - msg->tx_size += sizeof(u32); - } - - list_add_tail(&msg->list, &byt->tx_list); - spin_unlock_irqrestore(&byt->dsp->spinlock, flags); - - queue_kthread_work(&byt->kworker, &byt->kwork); - - if (wait) - return sst_byt_tx_wait_done(byt, msg, rx_data); - else - return 0; -} - -static inline int sst_byt_ipc_tx_msg_wait(struct sst_byt *byt, u64 header, - void *tx_data, size_t tx_bytes, - void *rx_data, size_t rx_bytes) -{ - return sst_byt_ipc_tx_message(byt, header, tx_data, tx_bytes, - rx_data, rx_bytes, 1); -} - -static inline int sst_byt_ipc_tx_msg_nowait(struct sst_byt *byt, u64 header, - void *tx_data, size_t tx_bytes) -{ - return sst_byt_ipc_tx_message(byt, header, tx_data, tx_bytes, - NULL, 0, 0); -} - -static struct ipc_message *sst_byt_reply_find_msg(struct sst_byt *byt, - u64 header) -{ - struct ipc_message *msg = NULL, *_msg; - u64 mask; - - /* match reply to message sent based on msg and stream IDs */ - mask = IPC_HEADER_MSG_ID_MASK | - IPC_HEADER_STR_ID_MASK << IPC_HEADER_STR_ID_SHIFT; - header &= mask; - - if (list_empty(&byt->rx_list)) { - dev_err(byt->dev, - "ipc: rx list is empty but received 0x%llx\n", header); - goto out; - } - - list_for_each_entry(_msg, &byt->rx_list, list) { - if ((_msg->header & mask) == header) { - msg = _msg; - break; - } - } - -out: - return msg; -} - -static void sst_byt_stream_update(struct sst_byt *byt, struct ipc_message *msg) -{ - struct sst_byt_stream *stream; - u64 header = msg->header; - u8 stream_id = sst_byt_header_str_id(header); - u8 stream_msg = sst_byt_header_msg_id(header); - - stream = sst_byt_get_stream(byt, stream_id); - if (stream == NULL) - return; - - switch (stream_msg) { - case IPC_IA_DROP_STREAM: - case IPC_IA_PAUSE_STREAM: - case IPC_IA_FREE_STREAM: - stream->running = false; - break; - case IPC_IA_START_STREAM: - case IPC_IA_RESUME_STREAM: - stream->running = true; - break; - } -} - -static int sst_byt_process_reply(struct sst_byt *byt, u64 header) -{ - struct ipc_message *msg; - - msg = sst_byt_reply_find_msg(byt, header); - if (msg == NULL) - return 1; - - if (header & IPC_HEADER_LARGE(true)) { - msg->rx_size = sst_byt_header_data(header); - sst_dsp_inbox_read(byt->dsp, msg->rx_data, msg->rx_size); - } - - /* update any stream states */ - sst_byt_stream_update(byt, msg); - - list_del(&msg->list); - /* wake up */ - sst_byt_tx_msg_reply_complete(byt, msg); - - return 1; -} - -static void sst_byt_fw_ready(struct sst_byt *byt, u64 header) -{ - dev_dbg(byt->dev, "ipc: DSP is ready 0x%llX\n", header); - - byt->boot_complete = true; - wake_up(&byt->boot_wait); -} - -static int sst_byt_process_notification(struct sst_byt *byt, - unsigned long *flags) -{ - struct sst_dsp *sst = byt->dsp; - struct sst_byt_stream *stream; - u64 header; - u8 msg_id, stream_id; - int handled = 1; - - header = sst_dsp_shim_read64_unlocked(sst, SST_IPCD); - msg_id = sst_byt_header_msg_id(header); - - switch (msg_id) { - case IPC_SST_PERIOD_ELAPSED: - stream_id = sst_byt_header_str_id(header); - stream = sst_byt_get_stream(byt, stream_id); - if (stream && stream->running && stream->notify_position) { - spin_unlock_irqrestore(&sst->spinlock, *flags); - stream->notify_position(stream, stream->pdata); - spin_lock_irqsave(&sst->spinlock, *flags); - } - break; - case IPC_IA_FW_INIT_CMPLT: - sst_byt_fw_ready(byt, header); - break; - } - - return handled; -} - -static irqreturn_t sst_byt_irq_thread(int irq, void *context) -{ - struct sst_dsp *sst = (struct sst_dsp *) context; - struct sst_byt *byt = sst_dsp_get_thread_context(sst); - u64 header; - unsigned long flags; - - spin_lock_irqsave(&sst->spinlock, flags); - - header = sst_dsp_shim_read64_unlocked(sst, SST_IPCD); - if (header & SST_BYT_IPCD_BUSY) { - if (header & IPC_NOTIFICATION) { - /* message from ADSP */ - sst_byt_process_notification(byt, &flags); - } else { - /* reply from ADSP */ - sst_byt_process_reply(byt, header); - } - /* - * clear IPCD BUSY bit and set DONE bit. Tell DSP we have - * processed the message and can accept new. Clear data part - * of the header - */ - sst_dsp_shim_update_bits64_unlocked(sst, SST_IPCD, - SST_BYT_IPCD_DONE | SST_BYT_IPCD_BUSY | - IPC_HEADER_DATA(IPC_HEADER_DATA_MASK), - SST_BYT_IPCD_DONE); - /* unmask message request interrupts */ - sst_dsp_shim_update_bits64_unlocked(sst, SST_IMRX, - SST_BYT_IMRX_REQUEST, 0); - } - - spin_unlock_irqrestore(&sst->spinlock, flags); - - /* continue to send any remaining messages... */ - queue_kthread_work(&byt->kworker, &byt->kwork); - - return IRQ_HANDLED; -} - -/* stream API */ -struct sst_byt_stream *sst_byt_stream_new(struct sst_byt *byt, int id, - u32 (*notify_position)(struct sst_byt_stream *stream, void *data), - void *data) -{ - struct sst_byt_stream *stream; - struct sst_dsp *sst = byt->dsp; - unsigned long flags; - - stream = kzalloc(sizeof(*stream), GFP_KERNEL); - if (stream == NULL) - return NULL; - - spin_lock_irqsave(&sst->spinlock, flags); - list_add(&stream->node, &byt->stream_list); - stream->notify_position = notify_position; - stream->pdata = data; - stream->byt = byt; - stream->str_id = id; - spin_unlock_irqrestore(&sst->spinlock, flags); - - return stream; -} - -int sst_byt_stream_set_bits(struct sst_byt *byt, struct sst_byt_stream *stream, - int bits) -{ - stream->request.pcm_params.pcm_wd_sz = bits; - return 0; -} - -int sst_byt_stream_set_channels(struct sst_byt *byt, - struct sst_byt_stream *stream, u8 channels) -{ - stream->request.pcm_params.num_chan = channels; - return 0; -} - -int sst_byt_stream_set_rate(struct sst_byt *byt, struct sst_byt_stream *stream, - unsigned int rate) -{ - stream->request.pcm_params.sfreq = rate; - return 0; -} - -/* stream sonfiguration */ -int sst_byt_stream_type(struct sst_byt *byt, struct sst_byt_stream *stream, - int codec_type, int stream_type, int operation) -{ - stream->request.str_type.codec_type = codec_type; - stream->request.str_type.str_type = stream_type; - stream->request.str_type.operation = operation; - stream->request.str_type.time_slots = 0xc; - - return 0; -} - -int sst_byt_stream_buffer(struct sst_byt *byt, struct sst_byt_stream *stream, - uint32_t buffer_addr, uint32_t buffer_size) -{ - stream->request.frame_info.num_entries = 1; - stream->request.frame_info.ring_buf_info[0].addr = buffer_addr; - stream->request.frame_info.ring_buf_info[0].size = buffer_size; - /* calculate bytes per 4 ms fragment */ - stream->request.frame_info.frag_size = - stream->request.pcm_params.sfreq * - stream->request.pcm_params.num_chan * - stream->request.pcm_params.pcm_wd_sz / 8 * - 4 / 1000; - return 0; -} - -int sst_byt_stream_commit(struct sst_byt *byt, struct sst_byt_stream *stream) -{ - struct sst_byt_alloc_params *str_req = &stream->request; - struct sst_byt_alloc_response *reply = &stream->reply; - u64 header; - int ret; - - header = sst_byt_header(IPC_IA_ALLOC_STREAM, - sizeof(*str_req) + sizeof(u32), - true, stream->str_id); - ret = sst_byt_ipc_tx_msg_wait(byt, header, str_req, sizeof(*str_req), - reply, sizeof(*reply)); - if (ret < 0) { - dev_err(byt->dev, "ipc: error stream commit failed\n"); - return ret; - } - - stream->commited = true; - - return 0; -} - -int sst_byt_stream_free(struct sst_byt *byt, struct sst_byt_stream *stream) -{ - u64 header; - int ret = 0; - struct sst_dsp *sst = byt->dsp; - unsigned long flags; - - if (!stream->commited) - goto out; - - header = sst_byt_header(IPC_IA_FREE_STREAM, 0, false, stream->str_id); - ret = sst_byt_ipc_tx_msg_wait(byt, header, NULL, 0, NULL, 0); - if (ret < 0) { - dev_err(byt->dev, "ipc: free stream %d failed\n", - stream->str_id); - return -EAGAIN; - } - - stream->commited = false; -out: - spin_lock_irqsave(&sst->spinlock, flags); - list_del(&stream->node); - kfree(stream); - spin_unlock_irqrestore(&sst->spinlock, flags); - - return ret; -} - -static int sst_byt_stream_operations(struct sst_byt *byt, int type, - int stream_id, int wait) -{ - u64 header; - - header = sst_byt_header(type, 0, false, stream_id); - if (wait) - return sst_byt_ipc_tx_msg_wait(byt, header, NULL, 0, NULL, 0); - else - return sst_byt_ipc_tx_msg_nowait(byt, header, NULL, 0); -} - -/* stream ALSA trigger operations */ -int sst_byt_stream_start(struct sst_byt *byt, struct sst_byt_stream *stream, - u32 start_offset) -{ - struct sst_byt_start_stream_params start_stream; - void *tx_msg; - size_t size; - u64 header; - int ret; - - start_stream.byte_offset = start_offset; - header = sst_byt_header(IPC_IA_START_STREAM, - sizeof(start_stream) + sizeof(u32), - true, stream->str_id); - tx_msg = &start_stream; - size = sizeof(start_stream); - - ret = sst_byt_ipc_tx_msg_nowait(byt, header, tx_msg, size); - if (ret < 0) - dev_err(byt->dev, "ipc: error failed to start stream %d\n", - stream->str_id); - - return ret; -} - -int sst_byt_stream_stop(struct sst_byt *byt, struct sst_byt_stream *stream) -{ - int ret; - - /* don't stop streams that are not commited */ - if (!stream->commited) - return 0; - - ret = sst_byt_stream_operations(byt, IPC_IA_DROP_STREAM, - stream->str_id, 0); - if (ret < 0) - dev_err(byt->dev, "ipc: error failed to stop stream %d\n", - stream->str_id); - return ret; -} - -int sst_byt_stream_pause(struct sst_byt *byt, struct sst_byt_stream *stream) -{ - int ret; - - ret = sst_byt_stream_operations(byt, IPC_IA_PAUSE_STREAM, - stream->str_id, 0); - if (ret < 0) - dev_err(byt->dev, "ipc: error failed to pause stream %d\n", - stream->str_id); - - return ret; -} - -int sst_byt_stream_resume(struct sst_byt *byt, struct sst_byt_stream *stream) -{ - int ret; - - ret = sst_byt_stream_operations(byt, IPC_IA_RESUME_STREAM, - stream->str_id, 0); - if (ret < 0) - dev_err(byt->dev, "ipc: error failed to resume stream %d\n", - stream->str_id); - - return ret; -} - -int sst_byt_get_dsp_position(struct sst_byt *byt, - struct sst_byt_stream *stream, int buffer_size) -{ - struct sst_dsp *sst = byt->dsp; - struct sst_byt_tstamp fw_tstamp; - u8 str_id = stream->str_id; - u32 tstamp_offset; - - tstamp_offset = SST_BYT_TIMESTAMP_OFFSET + str_id * sizeof(fw_tstamp); - memcpy_fromio(&fw_tstamp, - sst->addr.lpe + tstamp_offset, sizeof(fw_tstamp)); - - return do_div(fw_tstamp.ring_buffer_counter, buffer_size); -} - -static int msg_empty_list_init(struct sst_byt *byt) -{ - struct ipc_message *msg; - int i; - - byt->msg = kzalloc(sizeof(*msg) * IPC_EMPTY_LIST_SIZE, GFP_KERNEL); - if (byt->msg == NULL) - return -ENOMEM; - - for (i = 0; i < IPC_EMPTY_LIST_SIZE; i++) { - init_waitqueue_head(&byt->msg[i].waitq); - list_add(&byt->msg[i].list, &byt->empty_list); - } - - return 0; -} - -struct sst_dsp *sst_byt_get_dsp(struct sst_byt *byt) -{ - return byt->dsp; -} - -static struct sst_dsp_device byt_dev = { - .thread = sst_byt_irq_thread, - .ops = &sst_byt_ops, -}; - -int sst_byt_dsp_suspend_late(struct device *dev, struct sst_pdata *pdata) -{ - struct sst_byt *byt = pdata->dsp; - - dev_dbg(byt->dev, "dsp reset\n"); - sst_dsp_reset(byt->dsp); - sst_byt_drop_all(byt); - dev_dbg(byt->dev, "dsp in reset\n"); - - dev_dbg(byt->dev, "free all blocks and unload fw\n"); - sst_fw_unload(byt->fw); - - return 0; -} -EXPORT_SYMBOL_GPL(sst_byt_dsp_suspend_late); - -int sst_byt_dsp_boot(struct device *dev, struct sst_pdata *pdata) -{ - struct sst_byt *byt = pdata->dsp; - int ret; - - dev_dbg(byt->dev, "reload dsp fw\n"); - - sst_dsp_reset(byt->dsp); - - ret = sst_fw_reload(byt->fw); - if (ret < 0) { - dev_err(dev, "error: failed to reload firmware\n"); - return ret; - } - - /* wait for DSP boot completion */ - byt->boot_complete = false; - sst_dsp_boot(byt->dsp); - dev_dbg(byt->dev, "dsp booting...\n"); - - return 0; -} -EXPORT_SYMBOL_GPL(sst_byt_dsp_boot); - -int sst_byt_dsp_wait_for_ready(struct device *dev, struct sst_pdata *pdata) -{ - struct sst_byt *byt = pdata->dsp; - int err; - - dev_dbg(byt->dev, "wait for dsp reboot\n"); - - err = wait_event_timeout(byt->boot_wait, byt->boot_complete, - msecs_to_jiffies(IPC_BOOT_MSECS)); - if (err == 0) { - dev_err(byt->dev, "ipc: error DSP boot timeout\n"); - return -EIO; - } - - dev_dbg(byt->dev, "dsp rebooted\n"); - return 0; -} -EXPORT_SYMBOL_GPL(sst_byt_dsp_wait_for_ready); - -int sst_byt_dsp_init(struct device *dev, struct sst_pdata *pdata) -{ - struct sst_byt *byt; - struct sst_fw *byt_sst_fw; - struct sst_byt_fw_init init; - int err; - - dev_dbg(dev, "initialising Byt DSP IPC\n"); - - byt = devm_kzalloc(dev, sizeof(*byt), GFP_KERNEL); - if (byt == NULL) - return -ENOMEM; - - byt->dev = dev; - INIT_LIST_HEAD(&byt->stream_list); - INIT_LIST_HEAD(&byt->tx_list); - INIT_LIST_HEAD(&byt->rx_list); - INIT_LIST_HEAD(&byt->empty_list); - init_waitqueue_head(&byt->boot_wait); - init_waitqueue_head(&byt->wait_txq); - - err = msg_empty_list_init(byt); - if (err < 0) - return -ENOMEM; - - /* start the IPC message thread */ - init_kthread_worker(&byt->kworker); - byt->tx_thread = kthread_run(kthread_worker_fn, - &byt->kworker, "%s", - dev_name(byt->dev)); - if (IS_ERR(byt->tx_thread)) { - err = PTR_ERR(byt->tx_thread); - dev_err(byt->dev, "error failed to create message TX task\n"); - goto err_free_msg; - } - init_kthread_work(&byt->kwork, sst_byt_ipc_tx_msgs); - - byt_dev.thread_context = byt; - - /* init SST shim */ - byt->dsp = sst_dsp_new(dev, &byt_dev, pdata); - if (byt->dsp == NULL) { - err = -ENODEV; - goto dsp_err; - } - - /* keep the DSP in reset state for base FW loading */ - sst_dsp_reset(byt->dsp); - - byt_sst_fw = sst_fw_new(byt->dsp, pdata->fw, byt); - if (byt_sst_fw == NULL) { - err = -ENODEV; - dev_err(dev, "error: failed to load firmware\n"); - goto fw_err; - } - - /* wait for DSP boot completion */ - sst_dsp_boot(byt->dsp); - err = wait_event_timeout(byt->boot_wait, byt->boot_complete, - msecs_to_jiffies(IPC_BOOT_MSECS)); - if (err == 0) { - err = -EIO; - dev_err(byt->dev, "ipc: error DSP boot timeout\n"); - goto boot_err; - } - - /* show firmware information */ - sst_dsp_inbox_read(byt->dsp, &init, sizeof(init)); - dev_info(byt->dev, "FW version: %02x.%02x.%02x.%02x\n", - init.fw_version.major, init.fw_version.minor, - init.fw_version.build, init.fw_version.type); - dev_info(byt->dev, "Build type: %x\n", init.fw_version.type); - dev_info(byt->dev, "Build date: %s %s\n", - init.build_info.date, init.build_info.time); - - pdata->dsp = byt; - byt->fw = byt_sst_fw; - - return 0; - -boot_err: - sst_dsp_reset(byt->dsp); - sst_fw_free(byt_sst_fw); -fw_err: - sst_dsp_free(byt->dsp); -dsp_err: - kthread_stop(byt->tx_thread); -err_free_msg: - kfree(byt->msg); - - return err; -} -EXPORT_SYMBOL_GPL(sst_byt_dsp_init); - -void sst_byt_dsp_free(struct device *dev, struct sst_pdata *pdata) -{ - struct sst_byt *byt = pdata->dsp; - - sst_dsp_reset(byt->dsp); - sst_fw_free_all(byt->dsp); - sst_dsp_free(byt->dsp); - kthread_stop(byt->tx_thread); - kfree(byt->msg); -} -EXPORT_SYMBOL_GPL(sst_byt_dsp_free); diff --git a/sound/soc/intel/sst-baytrail-ipc.h b/sound/soc/intel/sst-baytrail-ipc.h deleted file mode 100644 index 8faff6dcf25d..000000000000 --- a/sound/soc/intel/sst-baytrail-ipc.h +++ /dev/null @@ -1,73 +0,0 @@ -/* - * Intel Baytrail SST IPC Support - * Copyright (c) 2014, Intel Corporation. - * - * 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. - */ - -#ifndef __SST_BYT_IPC_H -#define __SST_BYT_IPC_H - -#include - -struct sst_byt; -struct sst_byt_stream; -struct sst_pdata; -extern struct sst_ops sst_byt_ops; - - -#define SST_BYT_MAILBOX_OFFSET 0x144000 -#define SST_BYT_TIMESTAMP_OFFSET (SST_BYT_MAILBOX_OFFSET + 0x800) - -/** - * Upfront defined maximum message size that is - * expected by the in/out communication pipes in FW. - */ -#define SST_BYT_IPC_MAX_PAYLOAD_SIZE 200 - -/* stream API */ -struct sst_byt_stream *sst_byt_stream_new(struct sst_byt *byt, int id, - uint32_t (*get_write_position)(struct sst_byt_stream *stream, - void *data), - void *data); - -/* stream configuration */ -int sst_byt_stream_set_bits(struct sst_byt *byt, struct sst_byt_stream *stream, - int bits); -int sst_byt_stream_set_channels(struct sst_byt *byt, - struct sst_byt_stream *stream, u8 channels); -int sst_byt_stream_set_rate(struct sst_byt *byt, struct sst_byt_stream *stream, - unsigned int rate); -int sst_byt_stream_type(struct sst_byt *byt, struct sst_byt_stream *stream, - int codec_type, int stream_type, int operation); -int sst_byt_stream_buffer(struct sst_byt *byt, struct sst_byt_stream *stream, - uint32_t buffer_addr, uint32_t buffer_size); -int sst_byt_stream_commit(struct sst_byt *byt, struct sst_byt_stream *stream); -int sst_byt_stream_free(struct sst_byt *byt, struct sst_byt_stream *stream); - -/* stream ALSA trigger operations */ -int sst_byt_stream_start(struct sst_byt *byt, struct sst_byt_stream *stream, - u32 start_offset); -int sst_byt_stream_stop(struct sst_byt *byt, struct sst_byt_stream *stream); -int sst_byt_stream_pause(struct sst_byt *byt, struct sst_byt_stream *stream); -int sst_byt_stream_resume(struct sst_byt *byt, struct sst_byt_stream *stream); - -int sst_byt_get_dsp_position(struct sst_byt *byt, - struct sst_byt_stream *stream, int buffer_size); - -/* init */ -int sst_byt_dsp_init(struct device *dev, struct sst_pdata *pdata); -void sst_byt_dsp_free(struct device *dev, struct sst_pdata *pdata); -struct sst_dsp *sst_byt_get_dsp(struct sst_byt *byt); -int sst_byt_dsp_suspend_late(struct device *dev, struct sst_pdata *pdata); -int sst_byt_dsp_boot(struct device *dev, struct sst_pdata *pdata); -int sst_byt_dsp_wait_for_ready(struct device *dev, struct sst_pdata *pdata); - -#endif diff --git a/sound/soc/intel/sst-baytrail-pcm.c b/sound/soc/intel/sst-baytrail-pcm.c deleted file mode 100644 index 224c49c9f135..000000000000 --- a/sound/soc/intel/sst-baytrail-pcm.c +++ /dev/null @@ -1,505 +0,0 @@ -/* - * Intel Baytrail SST PCM Support - * Copyright (c) 2014, Intel Corporation. - * - * 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. - */ - -#include -#include -#include -#include -#include -#include -#include -#include "sst-baytrail-ipc.h" -#include "sst-dsp-priv.h" -#include "sst-dsp.h" - -#define BYT_PCM_COUNT 2 - -static const struct snd_pcm_hardware sst_byt_pcm_hardware = { - .info = SNDRV_PCM_INFO_MMAP | - SNDRV_PCM_INFO_MMAP_VALID | - SNDRV_PCM_INFO_INTERLEAVED | - SNDRV_PCM_INFO_PAUSE | - SNDRV_PCM_INFO_RESUME, - .formats = SNDRV_PCM_FMTBIT_S16_LE | - SNDRV_PCM_FMTBIT_S24_LE, - .period_bytes_min = 384, - .period_bytes_max = 48000, - .periods_min = 2, - .periods_max = 250, - .buffer_bytes_max = 96000, -}; - -/* private data for each PCM DSP stream */ -struct sst_byt_pcm_data { - struct sst_byt_stream *stream; - struct snd_pcm_substream *substream; - struct mutex mutex; - - /* latest DSP DMA hw pointer */ - u32 hw_ptr; - - struct work_struct work; -}; - -/* private data for the driver */ -struct sst_byt_priv_data { - /* runtime DSP */ - struct sst_byt *byt; - - /* DAI data */ - struct sst_byt_pcm_data pcm[BYT_PCM_COUNT]; - - /* flag indicating is stream context restore needed after suspend */ - bool restore_stream; -}; - -/* this may get called several times by oss emulation */ -static int sst_byt_pcm_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct sst_byt_priv_data *pdata = - snd_soc_platform_get_drvdata(rtd->platform); - struct sst_byt_pcm_data *pcm_data = &pdata->pcm[substream->stream]; - struct sst_byt *byt = pdata->byt; - u32 rate, bits; - u8 channels; - int ret, playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK); - - dev_dbg(rtd->dev, "PCM: hw_params, pcm_data %p\n", pcm_data); - - ret = sst_byt_stream_type(byt, pcm_data->stream, - 1, 1, !playback); - if (ret < 0) { - dev_err(rtd->dev, "failed to set stream format %d\n", ret); - return ret; - } - - rate = params_rate(params); - ret = sst_byt_stream_set_rate(byt, pcm_data->stream, rate); - if (ret < 0) { - dev_err(rtd->dev, "could not set rate %d\n", rate); - return ret; - } - - bits = snd_pcm_format_width(params_format(params)); - ret = sst_byt_stream_set_bits(byt, pcm_data->stream, bits); - if (ret < 0) { - dev_err(rtd->dev, "could not set formats %d\n", - params_rate(params)); - return ret; - } - - channels = (u8)(params_channels(params) & 0xF); - ret = sst_byt_stream_set_channels(byt, pcm_data->stream, channels); - if (ret < 0) { - dev_err(rtd->dev, "could not set channels %d\n", - params_rate(params)); - return ret; - } - - snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); - - ret = sst_byt_stream_buffer(byt, pcm_data->stream, - substream->dma_buffer.addr, - params_buffer_bytes(params)); - if (ret < 0) { - dev_err(rtd->dev, "PCM: failed to set DMA buffer %d\n", ret); - return ret; - } - - ret = sst_byt_stream_commit(byt, pcm_data->stream); - if (ret < 0) { - dev_err(rtd->dev, "PCM: failed stream commit %d\n", ret); - return ret; - } - - return 0; -} - -static int sst_byt_pcm_hw_free(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - - dev_dbg(rtd->dev, "PCM: hw_free\n"); - snd_pcm_lib_free_pages(substream); - - return 0; -} - -static int sst_byt_pcm_restore_stream_context(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct sst_byt_priv_data *pdata = - snd_soc_platform_get_drvdata(rtd->platform); - struct sst_byt_pcm_data *pcm_data = &pdata->pcm[substream->stream]; - struct sst_byt *byt = pdata->byt; - int ret; - - /* commit stream using existing stream params */ - ret = sst_byt_stream_commit(byt, pcm_data->stream); - if (ret < 0) { - dev_err(rtd->dev, "PCM: failed stream commit %d\n", ret); - return ret; - } - - sst_byt_stream_start(byt, pcm_data->stream, pcm_data->hw_ptr); - - dev_dbg(rtd->dev, "stream context restored at offset %d\n", - pcm_data->hw_ptr); - - return 0; -} - -static void sst_byt_pcm_work(struct work_struct *work) -{ - struct sst_byt_pcm_data *pcm_data = - container_of(work, struct sst_byt_pcm_data, work); - - if (snd_pcm_running(pcm_data->substream)) - sst_byt_pcm_restore_stream_context(pcm_data->substream); -} - -static int sst_byt_pcm_trigger(struct snd_pcm_substream *substream, int cmd) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct sst_byt_priv_data *pdata = - snd_soc_platform_get_drvdata(rtd->platform); - struct sst_byt_pcm_data *pcm_data = &pdata->pcm[substream->stream]; - struct sst_byt *byt = pdata->byt; - - dev_dbg(rtd->dev, "PCM: trigger %d\n", cmd); - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - pcm_data->hw_ptr = 0; - sst_byt_stream_start(byt, pcm_data->stream, 0); - break; - case SNDRV_PCM_TRIGGER_RESUME: - if (pdata->restore_stream == true) - schedule_work(&pcm_data->work); - else - sst_byt_stream_resume(byt, pcm_data->stream); - break; - case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - sst_byt_stream_resume(byt, pcm_data->stream); - break; - case SNDRV_PCM_TRIGGER_STOP: - sst_byt_stream_stop(byt, pcm_data->stream); - break; - case SNDRV_PCM_TRIGGER_SUSPEND: - pdata->restore_stream = false; - case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - sst_byt_stream_pause(byt, pcm_data->stream); - break; - default: - break; - } - - return 0; -} - -static u32 byt_notify_pointer(struct sst_byt_stream *stream, void *data) -{ - struct sst_byt_pcm_data *pcm_data = data; - struct snd_pcm_substream *substream = pcm_data->substream; - struct snd_pcm_runtime *runtime = substream->runtime; - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct sst_byt_priv_data *pdata = - snd_soc_platform_get_drvdata(rtd->platform); - struct sst_byt *byt = pdata->byt; - u32 pos, hw_pos; - - hw_pos = sst_byt_get_dsp_position(byt, pcm_data->stream, - snd_pcm_lib_buffer_bytes(substream)); - pcm_data->hw_ptr = hw_pos; - pos = frames_to_bytes(runtime, - (runtime->control->appl_ptr % - runtime->buffer_size)); - - dev_dbg(rtd->dev, "PCM: App/DMA pointer %u/%u bytes\n", pos, hw_pos); - - snd_pcm_period_elapsed(substream); - return pos; -} - -static snd_pcm_uframes_t sst_byt_pcm_pointer(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_pcm_runtime *runtime = substream->runtime; - struct sst_byt_priv_data *pdata = - snd_soc_platform_get_drvdata(rtd->platform); - struct sst_byt_pcm_data *pcm_data = &pdata->pcm[substream->stream]; - - dev_dbg(rtd->dev, "PCM: DMA pointer %u bytes\n", pcm_data->hw_ptr); - - return bytes_to_frames(runtime, pcm_data->hw_ptr); -} - -static int sst_byt_pcm_open(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct sst_byt_priv_data *pdata = - snd_soc_platform_get_drvdata(rtd->platform); - struct sst_byt_pcm_data *pcm_data = &pdata->pcm[substream->stream]; - struct sst_byt *byt = pdata->byt; - - dev_dbg(rtd->dev, "PCM: open\n"); - - mutex_lock(&pcm_data->mutex); - - pcm_data->substream = substream; - - snd_soc_set_runtime_hwparams(substream, &sst_byt_pcm_hardware); - - pcm_data->stream = sst_byt_stream_new(byt, substream->stream + 1, - byt_notify_pointer, pcm_data); - if (pcm_data->stream == NULL) { - dev_err(rtd->dev, "failed to create stream\n"); - mutex_unlock(&pcm_data->mutex); - return -EINVAL; - } - - mutex_unlock(&pcm_data->mutex); - return 0; -} - -static int sst_byt_pcm_close(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct sst_byt_priv_data *pdata = - snd_soc_platform_get_drvdata(rtd->platform); - struct sst_byt_pcm_data *pcm_data = &pdata->pcm[substream->stream]; - struct sst_byt *byt = pdata->byt; - int ret; - - dev_dbg(rtd->dev, "PCM: close\n"); - - cancel_work_sync(&pcm_data->work); - mutex_lock(&pcm_data->mutex); - ret = sst_byt_stream_free(byt, pcm_data->stream); - if (ret < 0) { - dev_dbg(rtd->dev, "Free stream fail\n"); - goto out; - } - pcm_data->stream = NULL; - -out: - mutex_unlock(&pcm_data->mutex); - return ret; -} - -static int sst_byt_pcm_mmap(struct snd_pcm_substream *substream, - struct vm_area_struct *vma) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - - dev_dbg(rtd->dev, "PCM: mmap\n"); - return snd_pcm_lib_default_mmap(substream, vma); -} - -static struct snd_pcm_ops sst_byt_pcm_ops = { - .open = sst_byt_pcm_open, - .close = sst_byt_pcm_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = sst_byt_pcm_hw_params, - .hw_free = sst_byt_pcm_hw_free, - .trigger = sst_byt_pcm_trigger, - .pointer = sst_byt_pcm_pointer, - .mmap = sst_byt_pcm_mmap, -}; - -static int sst_byt_pcm_new(struct snd_soc_pcm_runtime *rtd) -{ - struct snd_pcm *pcm = rtd->pcm; - size_t size; - struct snd_soc_platform *platform = rtd->platform; - struct sst_pdata *pdata = dev_get_platdata(platform->dev); - int ret = 0; - - if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream || - pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) { - size = sst_byt_pcm_hardware.buffer_bytes_max; - ret = snd_pcm_lib_preallocate_pages_for_all(pcm, - SNDRV_DMA_TYPE_DEV, - pdata->dma_dev, - size, size); - if (ret) { - dev_err(rtd->dev, "dma buffer allocation failed %d\n", - ret); - return ret; - } - } - - return ret; -} - -static struct snd_soc_dai_driver byt_dais[] = { - { - .name = "Baytrail PCM", - .playback = { - .stream_name = "System Playback", - .channels_min = 2, - .channels_max = 2, - .rates = SNDRV_PCM_RATE_48000, - .formats = SNDRV_PCM_FMTBIT_S24_3LE | - SNDRV_PCM_FMTBIT_S16_LE, - }, - .capture = { - .stream_name = "Analog Capture", - .channels_min = 2, - .channels_max = 2, - .rates = SNDRV_PCM_RATE_48000, - .formats = SNDRV_PCM_FMTBIT_S16_LE, - }, - }, -}; - -static int sst_byt_pcm_probe(struct snd_soc_platform *platform) -{ - struct sst_pdata *plat_data = dev_get_platdata(platform->dev); - struct sst_byt_priv_data *priv_data; - int i; - - if (!plat_data) - return -ENODEV; - - priv_data = devm_kzalloc(platform->dev, sizeof(*priv_data), - GFP_KERNEL); - priv_data->byt = plat_data->dsp; - snd_soc_platform_set_drvdata(platform, priv_data); - - for (i = 0; i < BYT_PCM_COUNT; i++) { - mutex_init(&priv_data->pcm[i].mutex); - INIT_WORK(&priv_data->pcm[i].work, sst_byt_pcm_work); - } - - return 0; -} - -static int sst_byt_pcm_remove(struct snd_soc_platform *platform) -{ - return 0; -} - -static struct snd_soc_platform_driver byt_soc_platform = { - .probe = sst_byt_pcm_probe, - .remove = sst_byt_pcm_remove, - .ops = &sst_byt_pcm_ops, - .pcm_new = sst_byt_pcm_new, -}; - -static const struct snd_soc_component_driver byt_dai_component = { - .name = "byt-dai", -}; - -#ifdef CONFIG_PM -static int sst_byt_pcm_dev_suspend_late(struct device *dev) -{ - struct sst_pdata *sst_pdata = dev_get_platdata(dev); - struct sst_byt_priv_data *priv_data = dev_get_drvdata(dev); - int ret; - - dev_dbg(dev, "suspending late\n"); - - ret = sst_byt_dsp_suspend_late(dev, sst_pdata); - if (ret < 0) { - dev_err(dev, "failed to suspend %d\n", ret); - return ret; - } - - priv_data->restore_stream = true; - - return ret; -} - -static int sst_byt_pcm_dev_resume_early(struct device *dev) -{ - struct sst_pdata *sst_pdata = dev_get_platdata(dev); - int ret; - - dev_dbg(dev, "resume early\n"); - - /* load fw and boot DSP */ - ret = sst_byt_dsp_boot(dev, sst_pdata); - if (ret) - return ret; - - /* wait for FW to finish booting */ - return sst_byt_dsp_wait_for_ready(dev, sst_pdata); -} - -static const struct dev_pm_ops sst_byt_pm_ops = { - .suspend_late = sst_byt_pcm_dev_suspend_late, - .resume_early = sst_byt_pcm_dev_resume_early, -}; - -#define SST_BYT_PM_OPS (&sst_byt_pm_ops) -#else -#define SST_BYT_PM_OPS NULL -#endif - -static int sst_byt_pcm_dev_probe(struct platform_device *pdev) -{ - struct sst_pdata *sst_pdata = dev_get_platdata(&pdev->dev); - int ret; - - ret = sst_byt_dsp_init(&pdev->dev, sst_pdata); - if (ret < 0) - return -ENODEV; - - ret = snd_soc_register_platform(&pdev->dev, &byt_soc_platform); - if (ret < 0) - goto err_plat; - - ret = snd_soc_register_component(&pdev->dev, &byt_dai_component, - byt_dais, ARRAY_SIZE(byt_dais)); - if (ret < 0) - goto err_comp; - - return 0; - -err_comp: - snd_soc_unregister_platform(&pdev->dev); -err_plat: - sst_byt_dsp_free(&pdev->dev, sst_pdata); - return ret; -} - -static int sst_byt_pcm_dev_remove(struct platform_device *pdev) -{ - struct sst_pdata *sst_pdata = dev_get_platdata(&pdev->dev); - - snd_soc_unregister_platform(&pdev->dev); - snd_soc_unregister_component(&pdev->dev); - sst_byt_dsp_free(&pdev->dev, sst_pdata); - - return 0; -} - -static struct platform_driver sst_byt_pcm_driver = { - .driver = { - .name = "baytrail-pcm-audio", - .pm = SST_BYT_PM_OPS, - }, - - .probe = sst_byt_pcm_dev_probe, - .remove = sst_byt_pcm_dev_remove, -}; -module_platform_driver(sst_byt_pcm_driver); - -MODULE_AUTHOR("Jarkko Nikula"); -MODULE_DESCRIPTION("Baytrail PCM"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:baytrail-pcm-audio"); -- cgit v1.2.3-59-g8ed1b