sound/soc/intel/baytrail is a niche solution which supports limited number of BYT products - as described by snd_soc_acpi_intel_baytrail_legacy_machines table. For a long time it's deprecated in favor of sound/soc/intel/atom solution with SOF providing support for some products too effectively rendering /baytrail/ redundant. Remove deprecated code from ASoC tree.
Signed-off-by: Cezary Rojewski cezary.rojewski@intel.com Reviewed-by: Andy Shevchenko andriy.shevchenko@linux.intel.com --- sound/soc/intel/Kconfig | 13 - sound/soc/intel/Makefile | 1 - sound/soc/intel/baytrail/Makefile | 5 - sound/soc/intel/baytrail/sst-baytrail-dsp.c | 358 --------- sound/soc/intel/baytrail/sst-baytrail-ipc.c | 772 -------------------- sound/soc/intel/baytrail/sst-baytrail-ipc.h | 64 -- sound/soc/intel/baytrail/sst-baytrail-pcm.c | 459 ------------ 7 files changed, 1672 deletions(-) delete mode 100644 sound/soc/intel/baytrail/Makefile delete mode 100644 sound/soc/intel/baytrail/sst-baytrail-dsp.c delete mode 100644 sound/soc/intel/baytrail/sst-baytrail-ipc.c delete mode 100644 sound/soc/intel/baytrail/sst-baytrail-ipc.h delete mode 100644 sound/soc/intel/baytrail/sst-baytrail-pcm.c
diff --git a/sound/soc/intel/Kconfig b/sound/soc/intel/Kconfig index dfc20f2bb859..41f9c286b34c 100644 --- a/sound/soc/intel/Kconfig +++ b/sound/soc/intel/Kconfig @@ -63,19 +63,6 @@ config SND_SOC_INTEL_HASWELL tristate select SND_SOC_INTEL_CATPT
-config SND_SOC_INTEL_BAYTRAIL - tristate "Baytrail (legacy) Platforms" - depends on DMADEVICES && ACPI && SND_SST_ATOM_HIFI2_PLATFORM=n && SND_SOC_SOF_BAYTRAIL=n - select SND_SOC_INTEL_SST - select SND_SOC_INTEL_SST_ACPI - select SND_SOC_INTEL_SST_FIRMWARE - select SND_SOC_ACPI_INTEL_MATCH - help - If you have a Intel Baytrail platform connected to an I2S codec, - then enable this option by saying Y or m. This was typically used - for Baytrail Chromebooks but this option is now deprecated and is - not recommended, use SND_SST_ATOM_HIFI2_PLATFORM instead. - config SND_SST_ATOM_HIFI2_PLATFORM tristate select SND_SOC_COMPRESS diff --git a/sound/soc/intel/Makefile b/sound/soc/intel/Makefile index c88c615f85f7..4e0248d2accc 100644 --- a/sound/soc/intel/Makefile +++ b/sound/soc/intel/Makefile @@ -3,7 +3,6 @@ obj-$(CONFIG_SND_SOC) += common/
# Platform Support -obj-$(CONFIG_SND_SOC_INTEL_BAYTRAIL) += baytrail/ obj-$(CONFIG_SND_SST_ATOM_HIFI2_PLATFORM) += atom/ obj-$(CONFIG_SND_SOC_INTEL_CATPT) += catpt/ obj-$(CONFIG_SND_SOC_INTEL_SKYLAKE) += skylake/ diff --git a/sound/soc/intel/baytrail/Makefile b/sound/soc/intel/baytrail/Makefile deleted file mode 100644 index 4d0806aac6bd..000000000000 --- a/sound/soc/intel/baytrail/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -snd-soc-sst-baytrail-pcm-objs := \ - sst-baytrail-ipc.o sst-baytrail-pcm.o sst-baytrail-dsp.o - -obj-$(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 deleted file mode 100644 index 4116ba66a4c2..000000000000 --- a/sound/soc/intel/baytrail/sst-baytrail-dsp.c +++ /dev/null @@ -1,358 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Intel Baytrail SST DSP driver - * Copyright (c) 2014, Intel Corporation. - */ - -#include <linux/delay.h> -#include <linux/fs.h> -#include <linux/slab.h> -#include <linux/device.h> -#include <linux/interrupt.h> -#include <linux/module.h> -#include <linux/dma-mapping.h> -#include <linux/platform_device.h> -#include <linux/firmware.h> - -#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 deleted file mode 100644 index 34746fd871b0..000000000000 --- a/sound/soc/intel/baytrail/sst-baytrail-ipc.c +++ /dev/null @@ -1,772 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Intel Baytrail SST IPC Support - * Copyright (c) 2014, Intel Corporation. - */ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/list.h> -#include <linux/device.h> -#include <linux/wait.h> -#include <linux/spinlock.h> -#include <linux/workqueue.h> -#include <linux/export.h> -#include <linux/slab.h> -#include <linux/delay.h> -#include <linux/platform_device.h> -#include <linux/firmware.h> -#include <linux/io.h> -#include <asm/div64.h> - -#include "sst-baytrail-ipc.h" -#include "../common/sst-dsp.h" -#include "../common/sst-dsp-priv.h" -#include "../common/sst-ipc.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; - -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 sst_generic_ipc ipc; -}; - -static inline u64 sst_byt_header(int msg_id, int data, bool large, int str_id) -{ - return IPC_HEADER_MSG_ID(msg_id) | IPC_HEADER_STR_ID(str_id) | - IPC_HEADER_LARGE(large) | IPC_HEADER_DATA(data) | - SST_BYT_IPCX_BUSY; -} - -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_stream_update(struct sst_byt *byt, struct ipc_message *msg) -{ - struct sst_byt_stream *stream; - u64 header = msg->tx.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_ipc_reply_find_msg(&byt->ipc, header); - if (msg == NULL) - return 1; - - msg->rx.header = header; - 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_ipc_tx_msg_reply_complete(&byt->ipc, 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; - - 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 1; -} - -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); - struct sst_generic_ipc *ipc = &byt->ipc; - 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... */ - schedule_work(&ipc->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_ipc_message request, reply = {0}; - int ret; - - request.header = sst_byt_header(IPC_IA_ALLOC_STREAM, - sizeof(stream->request) + sizeof(u32), - true, stream->str_id); - request.data = &stream->request; - request.size = sizeof(stream->request); - reply.data = &stream->reply; - reply.size = sizeof(stream->reply); - - ret = sst_ipc_tx_message_wait(&byt->ipc, request, &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) -{ - struct sst_ipc_message request = {0}; - int ret = 0; - struct sst_dsp *sst = byt->dsp; - unsigned long flags; - - if (!stream->commited) - goto out; - - request.header = sst_byt_header(IPC_IA_FREE_STREAM, - 0, false, stream->str_id); - ret = sst_ipc_tx_message_wait(&byt->ipc, request, NULL); - 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) -{ - struct sst_ipc_message request = {0}; - - request.header = sst_byt_header(type, 0, false, stream_id); - if (wait) - return sst_ipc_tx_message_wait(&byt->ipc, request, NULL); - else - return sst_ipc_tx_message_nowait(&byt->ipc, request); -} - -/* 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; - struct sst_ipc_message request; - int ret; - - start_stream.byte_offset = start_offset; - request.header = sst_byt_header(IPC_IA_START_STREAM, - sizeof(start_stream) + sizeof(u32), - true, stream->str_id); - request.data = &start_stream; - request.size = sizeof(start_stream); - - ret = sst_ipc_tx_message_nowait(&byt->ipc, request); - 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); -} - -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_ipc_drop_all(&byt->ipc); - 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); - -static void byt_tx_msg(struct sst_generic_ipc *ipc, struct ipc_message *msg) -{ - if (msg->tx.header & IPC_HEADER_LARGE(true)) - sst_dsp_outbox_write(ipc->dsp, msg->tx.data, msg->tx.size); - - sst_dsp_shim_write64_unlocked(ipc->dsp, SST_IPCX, msg->tx.header); -} - -static void byt_shim_dbg(struct sst_generic_ipc *ipc, const char *text) -{ - struct sst_dsp *sst = ipc->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(ipc->dev, - "ipc: --%s-- ipcx 0x%llx isr 0x%llx ipcd 0x%llx imrx 0x%llx\n", - text, ipcx, isr, ipcd, imrx); -} - -static void byt_tx_data_copy(struct ipc_message *msg, char *tx_data, - size_t tx_size) -{ - /* msg content = lower 32-bit of the header + data */ - *(u32 *)msg->tx.data = (u32)(msg->tx.header & (u32)-1); - memcpy(msg->tx.data + sizeof(u32), tx_data, tx_size); - msg->tx.size += sizeof(u32); -} - -static u64 byt_reply_msg_match(u64 header, 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; - - return header; -} - -static bool byt_is_dsp_busy(struct sst_dsp *dsp) -{ - u64 ipcx; - - ipcx = sst_dsp_shim_read64_unlocked(dsp, SST_IPCX); - return (ipcx & (SST_BYT_IPCX_BUSY | SST_BYT_IPCX_DONE)); -} - -int sst_byt_dsp_init(struct device *dev, struct sst_pdata *pdata) -{ - struct sst_byt *byt; - struct sst_generic_ipc *ipc; - 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; - - ipc = &byt->ipc; - ipc->dev = dev; - ipc->ops.tx_msg = byt_tx_msg; - ipc->ops.shim_dbg = byt_shim_dbg; - ipc->ops.tx_data_copy = byt_tx_data_copy; - ipc->ops.reply_msg_match = byt_reply_msg_match; - ipc->ops.is_dsp_busy = byt_is_dsp_busy; - ipc->tx_data_max_size = IPC_MAX_MAILBOX_BYTES; - ipc->rx_data_max_size = IPC_MAX_MAILBOX_BYTES; - - err = sst_ipc_init(ipc); - if (err != 0) - goto ipc_init_err; - - INIT_LIST_HEAD(&byt->stream_list); - init_waitqueue_head(&byt->boot_wait); - 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_new_err; - } - - ipc->dsp = byt->dsp; - - /* 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_new_err: - sst_ipc_fini(ipc); -ipc_init_err: - - 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); - sst_ipc_fini(&byt->ipc); -} -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 deleted file mode 100644 index cc960b79e9e1..000000000000 --- a/sound/soc/intel/baytrail/sst-baytrail-ipc.h +++ /dev/null @@ -1,64 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Intel Baytrail SST IPC Support - * Copyright (c) 2014, Intel Corporation. - */ - -#ifndef __SST_BYT_IPC_H -#define __SST_BYT_IPC_H - -#include <linux/types.h> - -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 (*notify_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 deleted file mode 100644 index 54a66cc6db89..000000000000 --- a/sound/soc/intel/baytrail/sst-baytrail-pcm.c +++ /dev/null @@ -1,459 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Intel Baytrail SST PCM Support - * Copyright (c) 2014, Intel Corporation. - */ - -#include <linux/module.h> -#include <linux/dma-mapping.h> -#include <linux/slab.h> -#include <sound/core.h> -#include <sound/pcm.h> -#include <sound/pcm_params.h> -#include <sound/soc.h> -#include "sst-baytrail-ipc.h" -#include "../common/sst-dsp-priv.h" -#include "../common/sst-dsp.h" - -#define DRV_NAME "byt-dai" -#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_soc_component *component, - struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params) -{ - struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); - struct sst_byt_priv_data *pdata = snd_soc_component_get_drvdata(component); - 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; - } - - 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_restore_stream_context(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); - struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, DRV_NAME); - struct sst_byt_priv_data *pdata = snd_soc_component_get_drvdata(component); - 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_soc_component *component, - struct snd_pcm_substream *substream, int cmd) -{ - struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); - struct sst_byt_priv_data *pdata = snd_soc_component_get_drvdata(component); - 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) - 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; - /* fallthrough */ - 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 = asoc_substream_to_rtd(substream); - struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, DRV_NAME); - struct sst_byt_priv_data *pdata = snd_soc_component_get_drvdata(component); - 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_soc_component *component, - struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); - struct snd_pcm_runtime *runtime = substream->runtime; - struct sst_byt_priv_data *pdata = snd_soc_component_get_drvdata(component); - 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_soc_component *component, - struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); - struct sst_byt_priv_data *pdata = snd_soc_component_get_drvdata(component); - 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_soc_component *component, - struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); - struct sst_byt_priv_data *pdata = snd_soc_component_get_drvdata(component); - 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_soc_component *component, - struct snd_pcm_substream *substream, - struct vm_area_struct *vma) -{ - struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); - - dev_dbg(rtd->dev, "PCM: mmap\n"); - return snd_pcm_lib_default_mmap(substream, vma); -} - -static int sst_byt_pcm_new(struct snd_soc_component *component, - struct snd_soc_pcm_runtime *rtd) -{ - struct snd_pcm *pcm = rtd->pcm; - size_t size; - struct sst_pdata *pdata = dev_get_platdata(component->dev); - - if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream || - pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) { - size = sst_byt_pcm_hardware.buffer_bytes_max; - snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, - pdata->dma_dev, size, size); - } - - return 0; -} - -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_component *component) -{ - struct sst_pdata *plat_data = dev_get_platdata(component->dev); - struct sst_byt_priv_data *priv_data; - int i; - - if (!plat_data) - return -ENODEV; - - priv_data = devm_kzalloc(component->dev, sizeof(*priv_data), - GFP_KERNEL); - if (!priv_data) - return -ENOMEM; - priv_data->byt = plat_data->dsp; - snd_soc_component_set_drvdata(component, 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 const struct snd_soc_component_driver byt_dai_component = { - .name = DRV_NAME, - .probe = sst_byt_pcm_probe, - .open = sst_byt_pcm_open, - .close = sst_byt_pcm_close, - .hw_params = sst_byt_pcm_hw_params, - .trigger = sst_byt_pcm_trigger, - .pointer = sst_byt_pcm_pointer, - .mmap = sst_byt_pcm_mmap, - .pcm_construct = sst_byt_pcm_new, -}; - -#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 = devm_snd_soc_register_component(&pdev->dev, &byt_dai_component, - byt_dais, ARRAY_SIZE(byt_dais)); - if (ret < 0) - goto err_plat; - - return 0; - -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); - - 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");