diff options
Diffstat (limited to 'sound/soc/qcom/qdsp6/q6asm.c')
| -rw-r--r-- | sound/soc/qcom/qdsp6/q6asm.c | 1399 |
1 files changed, 1399 insertions, 0 deletions
diff --git a/sound/soc/qcom/qdsp6/q6asm.c b/sound/soc/qcom/qdsp6/q6asm.c new file mode 100644 index 0000000000000..530852385cadc --- /dev/null +++ b/sound/soc/qcom/qdsp6/q6asm.c @@ -0,0 +1,1399 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2011-2017, The Linux Foundation. All rights reserved. +// Copyright (c) 2018, Linaro Limited + +#include <linux/mutex.h> +#include <linux/wait.h> +#include <linux/module.h> +#include <linux/soc/qcom/apr.h> +#include <linux/device.h> +#include <linux/of_platform.h> +#include <linux/spinlock.h> +#include <linux/kref.h> +#include <linux/of.h> +#include <linux/of_platform.h> +#include <uapi/sound/asound.h> +#include <linux/delay.h> +#include <linux/slab.h> +#include <linux/mm.h> +#include "q6asm.h" +#include "q6core.h" +#include "q6dsp-errno.h" +#include "q6dsp-common.h" + +#define ASM_STREAM_CMD_CLOSE 0x00010BCD +#define ASM_STREAM_CMD_FLUSH 0x00010BCE +#define ASM_SESSION_CMD_PAUSE 0x00010BD3 +#define ASM_DATA_CMD_EOS 0x00010BDB +#define ASM_NULL_POPP_TOPOLOGY 0x00010C68 +#define ASM_STREAM_CMD_FLUSH_READBUFS 0x00010C09 +#define ASM_STREAM_CMD_SET_ENCDEC_PARAM 0x00010C10 +#define ASM_STREAM_POSTPROC_TOPO_ID_NONE 0x00010C68 +#define ASM_CMD_SHARED_MEM_MAP_REGIONS 0x00010D92 +#define ASM_CMDRSP_SHARED_MEM_MAP_REGIONS 0x00010D93 +#define ASM_CMD_SHARED_MEM_UNMAP_REGIONS 0x00010D94 +#define ASM_DATA_CMD_MEDIA_FMT_UPDATE_V2 0x00010D98 +#define ASM_DATA_EVENT_WRITE_DONE_V2 0x00010D99 +#define ASM_PARAM_ID_ENCDEC_ENC_CFG_BLK_V2 0x00010DA3 +#define ASM_SESSION_CMD_RUN_V2 0x00010DAA +#define ASM_MEDIA_FMT_MULTI_CHANNEL_PCM_V2 0x00010DA5 +#define ASM_DATA_CMD_WRITE_V2 0x00010DAB +#define ASM_DATA_CMD_READ_V2 0x00010DAC +#define ASM_SESSION_CMD_SUSPEND 0x00010DEC +#define ASM_STREAM_CMD_OPEN_WRITE_V3 0x00010DB3 +#define ASM_STREAM_CMD_OPEN_READ_V3 0x00010DB4 +#define ASM_DATA_EVENT_READ_DONE_V2 0x00010D9A +#define ASM_STREAM_CMD_OPEN_READWRITE_V2 0x00010D8D + + +#define ASM_LEGACY_STREAM_SESSION 0 +/* Bit shift for the stream_perf_mode subfield. */ +#define ASM_SHIFT_STREAM_PERF_MODE_FLAG_IN_OPEN_READ 29 +#define ASM_END_POINT_DEVICE_MATRIX 0 +#define ASM_DEFAULT_APP_TYPE 0 +#define ASM_SYNC_IO_MODE 0x0001 +#define ASM_ASYNC_IO_MODE 0x0002 +#define ASM_TUN_READ_IO_MODE 0x0004 /* tunnel read write mode */ +#define ASM_TUN_WRITE_IO_MODE 0x0008 /* tunnel read write mode */ +#define ASM_SHIFT_GAPLESS_MODE_FLAG 31 +#define ADSP_MEMORY_MAP_SHMEM8_4K_POOL 3 + +struct avs_cmd_shared_mem_map_regions { + u16 mem_pool_id; + u16 num_regions; + u32 property_flag; +} __packed; + +struct avs_shared_map_region_payload { + u32 shm_addr_lsw; + u32 shm_addr_msw; + u32 mem_size_bytes; +} __packed; + +struct avs_cmd_shared_mem_unmap_regions { + u32 mem_map_handle; +} __packed; + +struct asm_data_cmd_media_fmt_update_v2 { + u32 fmt_blk_size; +} __packed; + +struct asm_multi_channel_pcm_fmt_blk_v2 { + struct asm_data_cmd_media_fmt_update_v2 fmt_blk; + u16 num_channels; + u16 bits_per_sample; + u32 sample_rate; + u16 is_signed; + u16 reserved; + u8 channel_mapping[PCM_MAX_NUM_CHANNEL]; +} __packed; + +struct asm_stream_cmd_set_encdec_param { + u32 param_id; + u32 param_size; +} __packed; + +struct asm_enc_cfg_blk_param_v2 { + u32 frames_per_buf; + u32 enc_cfg_blk_size; +} __packed; + +struct asm_multi_channel_pcm_enc_cfg_v2 { + struct asm_stream_cmd_set_encdec_param encdec; + struct asm_enc_cfg_blk_param_v2 encblk; + uint16_t num_channels; + uint16_t bits_per_sample; + uint32_t sample_rate; + uint16_t is_signed; + uint16_t reserved; + uint8_t channel_mapping[8]; +} __packed; + +struct asm_data_cmd_read_v2 { + u32 buf_addr_lsw; + u32 buf_addr_msw; + u32 mem_map_handle; + u32 buf_size; + u32 seq_id; +} __packed; + +struct asm_data_cmd_read_v2_done { + u32 status; + u32 buf_addr_lsw; + u32 buf_addr_msw; +}; + +struct asm_stream_cmd_open_read_v3 { + u32 mode_flags; + u32 src_endpointype; + u32 preprocopo_id; + u32 enc_cfg_id; + u16 bits_per_sample; + u16 reserved; +} __packed; + +struct asm_data_cmd_write_v2 { + u32 buf_addr_lsw; + u32 buf_addr_msw; + u32 mem_map_handle; + u32 buf_size; + u32 seq_id; + u32 timestamp_lsw; + u32 timestamp_msw; + u32 flags; +} __packed; + +struct asm_stream_cmd_open_write_v3 { + uint32_t mode_flags; + uint16_t sink_endpointype; + uint16_t bits_per_sample; + uint32_t postprocopo_id; + uint32_t dec_fmt_id; +} __packed; + +struct asm_session_cmd_run_v2 { + u32 flags; + u32 time_lsw; + u32 time_msw; +} __packed; + +struct audio_buffer { + phys_addr_t phys; + uint32_t size; /* size of buffer */ +}; + +struct audio_port_data { + struct audio_buffer *buf; + uint32_t num_periods; + uint32_t dsp_buf; + uint32_t mem_map_handle; +}; + +struct q6asm { + struct apr_device *adev; + struct device *dev; + struct q6core_svc_api_info ainfo; + wait_queue_head_t mem_wait; + struct platform_device *pcmdev; + spinlock_t slock; + struct audio_client *session[MAX_SESSIONS + 1]; + struct platform_device *pdev_dais; +}; + +struct audio_client { + int session; + q6asm_cb cb; + void *priv; + uint32_t io_mode; + struct apr_device *adev; + struct mutex cmd_lock; + spinlock_t lock; + struct kref refcount; + /* idx:1 out port, 0: in port */ + struct audio_port_data port[2]; + wait_queue_head_t cmd_wait; + struct aprv2_ibasic_rsp_result_t result; + int perf_mode; + int stream_id; + struct q6asm *q6asm; + struct device *dev; +}; + +static inline void q6asm_add_hdr(struct audio_client *ac, struct apr_hdr *hdr, + uint32_t pkt_size, bool cmd_flg, + uint32_t stream_id) +{ + hdr->hdr_field = APR_SEQ_CMD_HDR_FIELD; + hdr->src_port = ((ac->session << 8) & 0xFF00) | (stream_id); + hdr->dest_port = ((ac->session << 8) & 0xFF00) | (stream_id); + hdr->pkt_size = pkt_size; + if (cmd_flg) + hdr->token = ac->session; +} + +static int q6asm_apr_send_session_pkt(struct q6asm *a, struct audio_client *ac, + struct apr_pkt *pkt, uint32_t rsp_opcode) +{ + struct apr_hdr *hdr = &pkt->hdr; + int rc; + + mutex_lock(&ac->cmd_lock); + ac->result.opcode = 0; + ac->result.status = 0; + rc = apr_send_pkt(a->adev, pkt); + if (rc < 0) + goto err; + + if (rsp_opcode) + rc = wait_event_timeout(a->mem_wait, + (ac->result.opcode == hdr->opcode) || + (ac->result.opcode == rsp_opcode), + 5 * HZ); + else + rc = wait_event_timeout(a->mem_wait, + (ac->result.opcode == hdr->opcode), + 5 * HZ); + + if (!rc) { + dev_err(a->dev, "CMD timeout\n"); + rc = -ETIMEDOUT; + } else if (ac->result.status > 0) { + dev_err(a->dev, "DSP returned error[%x]\n", + ac->result.status); + rc = -EINVAL; + } + +err: + mutex_unlock(&ac->cmd_lock); + return rc; +} + +static int __q6asm_memory_unmap(struct audio_client *ac, + phys_addr_t buf_add, int dir) +{ + struct avs_cmd_shared_mem_unmap_regions *mem_unmap; + struct q6asm *a = dev_get_drvdata(ac->dev->parent); + struct apr_pkt *pkt; + int rc, pkt_size; + void *p; + + if (ac->port[dir].mem_map_handle == 0) { + dev_err(ac->dev, "invalid mem handle\n"); + return -EINVAL; + } + + pkt_size = APR_HDR_SIZE + sizeof(*mem_unmap); + p = kzalloc(pkt_size, GFP_KERNEL); + if (!p) + return -ENOMEM; + + pkt = p; + mem_unmap = p + APR_HDR_SIZE; + + pkt->hdr.hdr_field = APR_SEQ_CMD_HDR_FIELD; + pkt->hdr.src_port = 0; + pkt->hdr.dest_port = 0; + pkt->hdr.pkt_size = pkt_size; + pkt->hdr.token = ((ac->session << 8) | dir); + + pkt->hdr.opcode = ASM_CMD_SHARED_MEM_UNMAP_REGIONS; + mem_unmap->mem_map_handle = ac->port[dir].mem_map_handle; + + rc = q6asm_apr_send_session_pkt(a, ac, pkt, 0); + if (rc < 0) { + kfree(pkt); + return rc; + } + + ac->port[dir].mem_map_handle = 0; + + kfree(pkt); + return 0; +} + + +static void q6asm_audio_client_free_buf(struct audio_client *ac, + struct audio_port_data *port) +{ + unsigned long flags; + + spin_lock_irqsave(&ac->lock, flags); + port->num_periods = 0; + kfree(port->buf); + port->buf = NULL; + spin_unlock_irqrestore(&ac->lock, flags); +} + +/** + * q6asm_unmap_memory_regions() - unmap memory regions in the dsp. + * + * @dir: direction of audio stream + * @ac: audio client instanace + * + * Return: Will be an negative value on failure or zero on success + */ +int q6asm_unmap_memory_regions(unsigned int dir, struct audio_client *ac) +{ + struct audio_port_data *port; + int cnt = 0; + int rc = 0; + + port = &ac->port[dir]; + if (!port->buf) { + rc = -EINVAL; + goto err; + } + + cnt = port->num_periods - 1; + if (cnt >= 0) { + rc = __q6asm_memory_unmap(ac, port->buf[dir].phys, dir); + if (rc < 0) { + dev_err(ac->dev, "%s: Memory_unmap_regions failed %d\n", + __func__, rc); + goto err; + } + } + + q6asm_audio_client_free_buf(ac, port); + +err: + return rc; +} +EXPORT_SYMBOL_GPL(q6asm_unmap_memory_regions); + +static int __q6asm_memory_map_regions(struct audio_client *ac, int dir, + size_t period_sz, unsigned int periods, + bool is_contiguous) +{ + struct avs_cmd_shared_mem_map_regions *cmd = NULL; + struct avs_shared_map_region_payload *mregions = NULL; + struct q6asm *a = dev_get_drvdata(ac->dev->parent); + struct audio_port_data *port = NULL; + struct audio_buffer *ab = NULL; + struct apr_pkt *pkt; + void *p; + unsigned long flags; + uint32_t num_regions, buf_sz; + int rc, i, pkt_size; + + if (is_contiguous) { + num_regions = 1; + buf_sz = period_sz * periods; + } else { + buf_sz = period_sz; + num_regions = periods; + } + + /* DSP expects size should be aligned to 4K */ + buf_sz = ALIGN(buf_sz, 4096); + + pkt_size = APR_HDR_SIZE + sizeof(*cmd) + + (sizeof(*mregions) * num_regions); + + p = kzalloc(pkt_size, GFP_KERNEL); + if (!p) + return -ENOMEM; + + pkt = p; + cmd = p + APR_HDR_SIZE; + mregions = p + APR_HDR_SIZE + sizeof(*cmd); + + pkt->hdr.hdr_field = APR_SEQ_CMD_HDR_FIELD; + pkt->hdr.src_port = 0; + pkt->hdr.dest_port = 0; + pkt->hdr.pkt_size = pkt_size; + pkt->hdr.token = ((ac->session << 8) | dir); + pkt->hdr.opcode = ASM_CMD_SHARED_MEM_MAP_REGIONS; + + cmd->mem_pool_id = ADSP_MEMORY_MAP_SHMEM8_4K_POOL; + cmd->num_regions = num_regions; + cmd->property_flag = 0x00; + + spin_lock_irqsave(&ac->lock, flags); + port = &ac->port[dir]; + + for (i = 0; i < num_regions; i++) { + ab = &port->buf[i]; + mregions->shm_addr_lsw = lower_32_bits(ab->phys); + mregions->shm_addr_msw = upper_32_bits(ab->phys); + mregions->mem_size_bytes = buf_sz; + ++mregions; + } + spin_unlock_irqrestore(&ac->lock, flags); + + rc = q6asm_apr_send_session_pkt(a, ac, pkt, + ASM_CMDRSP_SHARED_MEM_MAP_REGIONS); + + kfree(pkt); + + return rc; +} + +/** + * q6asm_map_memory_regions() - map memory regions in the dsp. + * + * @dir: direction of audio stream + * @ac: audio client instanace + * @phys: physcial address that needs mapping. + * @period_sz: audio period size + * @periods: number of periods + * + * Return: Will be an negative value on failure or zero on success + */ +int q6asm_map_memory_regions(unsigned int dir, struct audio_client *ac, + phys_addr_t phys, + size_t period_sz, unsigned int periods) +{ + struct audio_buffer *buf; + unsigned long flags; + int cnt; + int rc; + + spin_lock_irqsave(&ac->lock, flags); + if (ac->port[dir].buf) { + dev_err(ac->dev, "Buffer already allocated\n"); + spin_unlock_irqrestore(&ac->lock, flags); + return 0; + } + + buf = kzalloc(((sizeof(struct audio_buffer)) * periods), GFP_ATOMIC); + if (!buf) { + spin_unlock_irqrestore(&ac->lock, flags); + return -ENOMEM; + } + + + ac->port[dir].buf = buf; + + buf[0].phys = phys; + buf[0].size = period_sz; + + for (cnt = 1; cnt < periods; cnt++) { + if (period_sz > 0) { + buf[cnt].phys = buf[0].phys + (cnt * period_sz); + buf[cnt].size = period_sz; + } + } + ac->port[dir].num_periods = periods; + + spin_unlock_irqrestore(&ac->lock, flags); + + rc = __q6asm_memory_map_regions(ac, dir, period_sz, periods, 1); + if (rc < 0) { + dev_err(ac->dev, "Memory_map_regions failed\n"); + q6asm_audio_client_free_buf(ac, &ac->port[dir]); + } + + return rc; +} +EXPORT_SYMBOL_GPL(q6asm_map_memory_regions); + +static void q6asm_audio_client_release(struct kref *ref) +{ + struct audio_client *ac; + struct q6asm *a; + unsigned long flags; + + ac = container_of(ref, struct audio_client, refcount); + a = ac->q6asm; + + spin_lock_irqsave(&a->slock, flags); + a->session[ac->session] = NULL; + spin_unlock_irqrestore(&a->slock, flags); + + kfree(ac); +} + +/** + * q6asm_audio_client_free() - Freee allocated audio client + * + * @ac: audio client to free + */ +void q6asm_audio_client_free(struct audio_client *ac) +{ + kref_put(&ac->refcount, q6asm_audio_client_release); +} +EXPORT_SYMBOL_GPL(q6asm_audio_client_free); + +static struct audio_client *q6asm_get_audio_client(struct q6asm *a, + int session_id) +{ + struct audio_client *ac = NULL; + unsigned long flags; + + spin_lock_irqsave(&a->slock, flags); + if ((session_id <= 0) || (session_id > MAX_SESSIONS)) { + dev_err(a->dev, "invalid session: %d\n", session_id); + goto err; + } + + /* check for valid session */ + if (!a->session[session_id]) + goto err; + else if (a->session[session_id]->session != session_id) + goto err; + + ac = a->session[session_id]; + kref_get(&ac->refcount); +err: + spin_unlock_irqrestore(&a->slock, flags); + return ac; +} + +static int32_t q6asm_stream_callback(struct apr_device *adev, + struct apr_resp_pkt *data, + int session_id) +{ + struct q6asm *q6asm = dev_get_drvdata(&adev->dev); + struct aprv2_ibasic_rsp_result_t *result; + struct apr_hdr *hdr = &data->hdr; + struct audio_port_data *port; + struct audio_client *ac; + uint32_t client_event = 0; + int ret = 0; + + ac = q6asm_get_audio_client(q6asm, session_id); + if (!ac)/* Audio client might already be freed by now */ + return 0; + + result = data->payload; + + switch (hdr->opcode) { + case APR_BASIC_RSP_RESULT: + switch (result->opcode) { + case ASM_SESSION_CMD_PAUSE: + client_event = ASM_CLIENT_EVENT_CMD_PAUSE_DONE; + break; + case ASM_SESSION_CMD_SUSPEND: + client_event = ASM_CLIENT_EVENT_CMD_SUSPEND_DONE; + break; + case ASM_DATA_CMD_EOS: + client_event = ASM_CLIENT_EVENT_CMD_EOS_DONE; + break; + case ASM_STREAM_CMD_FLUSH: + client_event = ASM_CLIENT_EVENT_CMD_FLUSH_DONE; + break; + case ASM_SESSION_CMD_RUN_V2: + client_event = ASM_CLIENT_EVENT_CMD_RUN_DONE; + break; + case ASM_STREAM_CMD_CLOSE: + client_event = ASM_CLIENT_EVENT_CMD_CLOSE_DONE; + break; + case ASM_STREAM_CMD_FLUSH_READBUFS: + client_event = ASM_CLIENT_EVENT_CMD_OUT_FLUSH_DONE; + break; + case ASM_STREAM_CMD_OPEN_WRITE_V3: + case ASM_STREAM_CMD_OPEN_READ_V3: + case ASM_STREAM_CMD_OPEN_READWRITE_V2: + case ASM_STREAM_CMD_SET_ENCDEC_PARAM: + case ASM_DATA_CMD_MEDIA_FMT_UPDATE_V2: + if (result->status != 0) { + dev_err(ac->dev, + "cmd = 0x%x returned error = 0x%x\n", + result->opcode, result->status); + ac->result = *result; + wake_up(&ac->cmd_wait); + ret = 0; + goto done; + } + break; + default: + dev_err(ac->dev, "command[0x%x] not expecting rsp\n", + result->opcode); + break; + } + + ac->result = *result; + wake_up(&ac->cmd_wait); + + if (ac->cb) + ac->cb(client_event, hdr->token, + data->payload, ac->priv); + + ret = 0; + goto done; + + case ASM_DATA_EVENT_WRITE_DONE_V2: + client_event = ASM_CLIENT_EVENT_DATA_WRITE_DONE; + if (ac->io_mode & ASM_SYNC_IO_MODE) { + phys_addr_t phys; + unsigned long flags; + + spin_lock_irqsave(&ac->lock, flags); + + port = &ac->port[SNDRV_PCM_STREAM_PLAYBACK]; + + if (!port->buf) { + spin_unlock_irqrestore(&ac->lock, flags); + ret = 0; + goto done; + } + + phys = port->buf[hdr->token].phys; + + if (lower_32_bits(phys) != result->opcode || + upper_32_bits(phys) != result->status) { + dev_err(ac->dev, "Expected addr %pa\n", + &port->buf[hdr->token].phys); + spin_unlock_irqrestore(&ac->lock, flags); + ret = -EINVAL; + goto done; + } + spin_unlock_irqrestore(&ac->lock, flags); + } + break; + case ASM_DATA_EVENT_READ_DONE_V2: + client_event = ASM_CLIENT_EVENT_DATA_READ_DONE; + if (ac->io_mode & ASM_SYNC_IO_MODE) { + struct asm_data_cmd_read_v2_done *done = data->payload; + unsigned long flags; + phys_addr_t phys; + + spin_lock_irqsave(&ac->lock, flags); + port = &ac->port[SNDRV_PCM_STREAM_CAPTURE]; + if (!port->buf) { + spin_unlock_irqrestore(&ac->lock, flags); + ret = 0; + goto done; + } + + phys = port->buf[hdr->token].phys; + + if (upper_32_bits(phys) != done->buf_addr_msw || + lower_32_bits(phys) != done->buf_addr_lsw) { + dev_err(ac->dev, "Expected addr %pa %08x-%08x\n", + &port->buf[hdr->token].phys, + done->buf_addr_lsw, + done->buf_addr_msw); + spin_unlock_irqrestore(&ac->lock, flags); + ret = -EINVAL; + goto done; + } + spin_unlock_irqrestore(&ac->lock, flags); + } + + break; + } + + if (ac->cb) + ac->cb(client_event, hdr->token, data->payload, ac->priv); + +done: + kref_put(&ac->refcount, q6asm_audio_client_release); + return ret; +} + +static int q6asm_srvc_callback(struct apr_device *adev, + struct apr_resp_pkt *data) +{ + struct q6asm *q6asm = dev_get_drvdata(&adev->dev); + struct aprv2_ibasic_rsp_result_t *result; + struct audio_port_data *port; + struct audio_client *ac = NULL; + struct apr_hdr *hdr = &data->hdr; + struct q6asm *a; + uint32_t sid = 0; + uint32_t dir = 0; + int session_id; + + session_id = (hdr->dest_port >> 8) & 0xFF; + if (session_id) + return q6asm_stream_callback(adev, data, session_id); + + sid = (hdr->token >> 8) & 0x0F; + ac = q6asm_get_audio_client(q6asm, sid); + if (!ac) { + dev_err(&adev->dev, "Audio Client not active\n"); + return 0; + } + + a = dev_get_drvdata(ac->dev->parent); + dir = (hdr->token & 0x0F); + port = &ac->port[dir]; + result = data->payload; + + switch (hdr->opcode) { + case APR_BASIC_RSP_RESULT: + switch (result->opcode) { + case ASM_CMD_SHARED_MEM_MAP_REGIONS: + case ASM_CMD_SHARED_MEM_UNMAP_REGIONS: + ac->result = *result; + wake_up(&a->mem_wait); + break; + default: + dev_err(&adev->dev, "command[0x%x] not expecting rsp\n", + result->opcode); + break; + } + goto done; + case ASM_CMDRSP_SHARED_MEM_MAP_REGIONS: + ac->result.status = 0; + ac->result.opcode = hdr->opcode; + port->mem_map_handle = result->opcode; + wake_up(&a->mem_wait); + break; + case ASM_CMD_SHARED_MEM_UNMAP_REGIONS: + ac->result.opcode = hdr->opcode; + ac->result.status = 0; + port->mem_map_handle = 0; + wake_up(&a->mem_wait); + break; + default: + dev_dbg(&adev->dev, "command[0x%x]success [0x%x]\n", + result->opcode, result->status); + break; + } + + if (ac->cb) + ac->cb(hdr->opcode, hdr->token, data->payload, ac->priv); + +done: + kref_put(&ac->refcount, q6asm_audio_client_release); + + return 0; +} + +/** + * q6asm_get_session_id() - get session id for audio client + * + * @c: audio client pointer + * + * Return: Will be an session id of the audio client. + */ +int q6asm_get_session_id(struct audio_client *c) +{ + return c->session; +} +EXPORT_SYMBOL_GPL(q6asm_get_session_id); + +/** + * q6asm_audio_client_alloc() - Allocate a new audio client + * + * @dev: Pointer to asm child device. + * @cb: event callback. + * @priv: private data associated with this client. + * @stream_id: stream id + * @perf_mode: performace mode for this client + * + * Return: Will be an error pointer on error or a valid audio client + * on success. + */ +struct audio_client *q6asm_audio_client_alloc(struct device *dev, q6asm_cb cb, + void *priv, int stream_id, + int perf_mode) +{ + struct q6asm *a = dev_get_drvdata(dev->parent); + struct audio_client *ac; + unsigned long flags; + + ac = q6asm_get_audio_client(a, stream_id + 1); + if (ac) { + dev_err(dev, "Audio Client already active\n"); + return ac; + } + + ac = kzalloc(sizeof(*ac), GFP_KERNEL); + if (!ac) + return ERR_PTR(-ENOMEM); + + spin_lock_irqsave(&a->slock, flags); + a->session[stream_id + 1] = ac; + spin_unlock_irqrestore(&a->slock, flags); + ac->session = stream_id + 1; + ac->cb = cb; + ac->dev = dev; + ac->q6asm = a; + ac->priv = priv; + ac->io_mode = ASM_SYNC_IO_MODE; + ac->perf_mode = perf_mode; + /* DSP expects stream id from 1 */ + ac->stream_id = 1; + ac->adev = a->adev; + kref_init(&ac->refcount); + + init_waitqueue_head(&ac->cmd_wait); + mutex_init(&ac->cmd_lock); + spin_lock_init(&ac->lock); + + return ac; +} +EXPORT_SYMBOL_GPL(q6asm_audio_client_alloc); + +static int q6asm_ac_send_cmd_sync(struct audio_client *ac, struct apr_pkt *pkt) +{ + struct apr_hdr *hdr = &pkt->hdr; + int rc; + + mutex_lock(&ac->cmd_lock); + ac->result.opcode = 0; + ac->result.status = 0; + + rc = apr_send_pkt(ac->adev, pkt); + if (rc < 0) + goto err; + + rc = wait_event_timeout(ac->cmd_wait, + (ac->result.opcode == hdr->opcode), 5 * HZ); + if (!rc) { + dev_err(ac->dev, "CMD timeout\n"); + rc = -ETIMEDOUT; + goto err; + } + + if (ac->result.status > 0) { + dev_err(ac->dev, "DSP returned error[%x]\n", + ac->result.status); + rc = -EINVAL; + } else { + rc = 0; + } + + +err: + mutex_unlock(&ac->cmd_lock); + return rc; +} + +/** + * q6asm_open_write() - Open audio client for writing + * + * @ac: audio client pointer + * @format: audio sample format + * @bits_per_sample: bits per sample + * + * Return: Will be an negative value on error or zero on success + */ +int q6asm_open_write(struct audio_client *ac, uint32_t format, + uint16_t bits_per_sample) +{ + struct asm_stream_cmd_open_write_v3 *open; + struct apr_pkt *pkt; + void *p; + int rc, pkt_size; + + pkt_size = APR_HDR_SIZE + sizeof(*open); + + p = kzalloc(pkt_size, GFP_KERNEL); + if (!p) + return -ENOMEM; + + pkt = p; + open = p + APR_HDR_SIZE; + q6asm_add_hdr(ac, &pkt->hdr, pkt_size, true, ac->stream_id); + + pkt->hdr.opcode = ASM_STREAM_CMD_OPEN_WRITE_V3; + open->mode_flags = 0x00; + open->mode_flags |= ASM_LEGACY_STREAM_SESSION; + + /* source endpoint : matrix */ + open->sink_endpointype = ASM_END_POINT_DEVICE_MATRIX; + open->bits_per_sample = bits_per_sample; + open->postprocopo_id = ASM_NULL_POPP_TOPOLOGY; + + switch (format) { + case FORMAT_LINEAR_PCM: + open->dec_fmt_id = ASM_MEDIA_FMT_MULTI_CHANNEL_PCM_V2; + break; + default: + dev_err(ac->dev, "Invalid format 0x%x\n", format); + rc = -EINVAL; + goto err; + } + + rc = q6asm_ac_send_cmd_sync(ac, pkt); + if (rc < 0) + goto err; + + ac->io_mode |= ASM_TUN_WRITE_IO_MODE; + +err: + kfree(pkt); + return rc; +} +EXPORT_SYMBOL_GPL(q6asm_open_write); + +static int __q6asm_run(struct audio_client *ac, uint32_t flags, + uint32_t msw_ts, uint32_t lsw_ts, bool wait) +{ + struct asm_session_cmd_run_v2 *run; + struct apr_pkt *pkt; + int pkt_size, rc; + void *p; + + pkt_size = APR_HDR_SIZE + sizeof(*run); + p = kzalloc(pkt_size, GFP_ATOMIC); + if (!p) + return -ENOMEM; + + pkt = p; + run = p + APR_HDR_SIZE; + + q6asm_add_hdr(ac, &pkt->hdr, pkt_size, true, ac->stream_id); + + pkt->hdr.opcode = ASM_SESSION_CMD_RUN_V2; + run->flags = flags; + run->time_lsw = lsw_ts; + run->time_msw = msw_ts; + if (wait) { + rc = q6asm_ac_send_cmd_sync(ac, pkt); + } else { + rc = apr_send_pkt(ac->adev, pkt); + if (rc == pkt_size) + rc = 0; + } + + kfree(pkt); + return rc; +} + +/** + * q6asm_run() - start the audio client + * + * @ac: audio client pointer + * @flags: flags associated with write + * @msw_ts: timestamp msw + * @lsw_ts: timestamp lsw + * + * Return: Will be an negative value on error or zero on success + */ +int q6asm_run(struct audio_client *ac, uint32_t flags, + uint32_t msw_ts, uint32_t lsw_ts) +{ + return __q6asm_run(ac, flags, msw_ts, lsw_ts, true); +} +EXPORT_SYMBOL_GPL(q6asm_run); + +/** + * q6asm_run_nowait() - start the audio client withou blocking + * + * @ac: audio client pointer + * @flags: flags associated with write + * @msw_ts: timestamp msw + * @lsw_ts: timestamp lsw + * + * Return: Will be an negative value on error or zero on success + */ +int q6asm_run_nowait(struct audio_client *ac, uint32_t flags, + uint32_t msw_ts, uint32_t lsw_ts) +{ + return __q6asm_run(ac, flags, msw_ts, lsw_ts, false); +} +EXPORT_SYMBOL_GPL(q6asm_run_nowait); + +/** + * q6asm_media_format_block_multi_ch_pcm() - setup pcm configuration + * + * @ac: audio client pointer + * @rate: audio sample rate + * @channels: number of audio channels. + * @channel_map: channel map pointer + * @bits_per_sample: bits per sample + * + * Return: Will be an negative value on error or zero on success + */ +int q6asm_media_format_block_multi_ch_pcm(struct audio_client *ac, + uint32_t rate, uint32_t channels, + u8 channel_map[PCM_MAX_NUM_CHANNEL], + uint16_t bits_per_sample) +{ + struct asm_multi_channel_pcm_fmt_blk_v2 *fmt; + struct apr_pkt *pkt; + u8 *channel_mapping; + void *p; + int rc, pkt_size; + + pkt_size = APR_HDR_SIZE + sizeof(*fmt); + p = kzalloc(pkt_size, GFP_KERNEL); + if (!p) + return -ENOMEM; + + pkt = p; + fmt = p + APR_HDR_SIZE; + + q6asm_add_hdr(ac, &pkt->hdr, pkt_size, true, ac->stream_id); + + pkt->hdr.opcode = ASM_DATA_CMD_MEDIA_FMT_UPDATE_V2; + fmt->fmt_blk.fmt_blk_size = sizeof(*fmt) - sizeof(fmt->fmt_blk); + fmt->num_channels = channels; + fmt->bits_per_sample = bits_per_sample; + fmt->sample_rate = rate; + fmt->is_signed = 1; + + channel_mapping = fmt->channel_mapping; + + if (channel_map) { + memcpy(channel_mapping, channel_map, PCM_MAX_NUM_CHANNEL); + } else { + if (q6dsp_map_channels(channel_mapping, channels)) { + dev_err(ac->dev, " map channels failed %d\n", channels); + rc = -EINVAL; + goto err; + } + } + + rc = q6asm_ac_send_cmd_sync(ac, pkt); + +err: + kfree(pkt); + return rc; +} +EXPORT_SYMBOL_GPL(q6asm_media_format_block_multi_ch_pcm); + +/** + * q6asm_enc_cfg_blk_pcm_format_support() - setup pcm configuration for capture + * + * @ac: audio client pointer + * @rate: audio sample rate + * @channels: number of audio channels. + * @bits_per_sample: bits per sample + * + * Return: Will be an negative value on error or zero on success + */ +int q6asm_enc_cfg_blk_pcm_format_support(struct audio_client *ac, + uint32_t rate, uint32_t channels, uint16_t bits_per_sample) +{ + struct asm_multi_channel_pcm_enc_cfg_v2 *enc_cfg; + struct apr_pkt *pkt; + u8 *channel_mapping; + u32 frames_per_buf = 0; + int pkt_size, rc; + void *p; + + pkt_size = APR_HDR_SIZE + sizeof(*enc_cfg); + p = kzalloc(pkt_size, GFP_KERNEL); + if (!p) + return -ENOMEM; + + pkt = p; + enc_cfg = p + APR_HDR_SIZE; + q6asm_add_hdr(ac, &pkt->hdr, pkt_size, true, ac->stream_id); + + pkt->hdr.opcode = ASM_STREAM_CMD_SET_ENCDEC_PARAM; + enc_cfg->encdec.param_id = ASM_PARAM_ID_ENCDEC_ENC_CFG_BLK_V2; + enc_cfg->encdec.param_size = sizeof(*enc_cfg) - sizeof(enc_cfg->encdec); + enc_cfg->encblk.frames_per_buf = frames_per_buf; + enc_cfg->encblk.enc_cfg_blk_size = enc_cfg->encdec.param_size - + sizeof(struct asm_enc_cfg_blk_param_v2); + + enc_cfg->num_channels = channels; + enc_cfg->bits_per_sample = bits_per_sample; + enc_cfg->sample_rate = rate; + enc_cfg->is_signed = 1; + channel_mapping = enc_cfg->channel_mapping; + + if (q6dsp_map_channels(channel_mapping, channels)) { + rc = -EINVAL; + goto err; + } + + rc = q6asm_ac_send_cmd_sync(ac, pkt); +err: + kfree(pkt); + return rc; +} +EXPORT_SYMBOL_GPL(q6asm_enc_cfg_blk_pcm_format_support); + +/** + * q6asm_read() - read data of period size from audio client + * + * @ac: audio client pointer + * + * Return: Will be an negative value on error or zero on success + */ +int q6asm_read(struct audio_client *ac) +{ + struct asm_data_cmd_read_v2 *read; + struct audio_port_data *port; + struct audio_buffer *ab; + struct apr_pkt *pkt; + unsigned long flags; + int pkt_size; + int rc = 0; + void *p; + + pkt_size = APR_HDR_SIZE + sizeof(*read); + p = kzalloc(pkt_size, GFP_ATOMIC); + if (!p) + return -ENOMEM; + + pkt = p; + read = p + APR_HDR_SIZE; + + spin_lock_irqsave(&ac->lock, flags); + port = &ac->port[SNDRV_PCM_STREAM_CAPTURE]; + q6asm_add_hdr(ac, &pkt->hdr, pkt_size, false, ac->stream_id); + ab = &port->buf[port->dsp_buf]; + pkt->hdr.opcode = ASM_DATA_CMD_READ_V2; + read->buf_addr_lsw = lower_32_bits(ab->phys); + read->buf_addr_msw = upper_32_bits(ab->phys); + read->mem_map_handle = port->mem_map_handle; + + read->buf_size = ab->size; + read->seq_id = port->dsp_buf; + pkt->hdr.token = port->dsp_buf; + + port->dsp_buf++; + + if (port->dsp_buf >= port->num_periods) + port->dsp_buf = 0; + + spin_unlock_irqrestore(&ac->lock, flags); + rc = apr_send_pkt(ac->adev, pkt); + if (rc == pkt_size) + rc = 0; + else + pr_err("read op[0x%x]rc[%d]\n", pkt->hdr.opcode, rc); + + kfree(pkt); + return rc; +} +EXPORT_SYMBOL_GPL(q6asm_read); + +static int __q6asm_open_read(struct audio_client *ac, + uint32_t format, uint16_t bits_per_sample) +{ + struct asm_stream_cmd_open_read_v3 *open; + struct apr_pkt *pkt; + int pkt_size, rc; + void *p; + + pkt_size = APR_HDR_SIZE + sizeof(*open); + p = kzalloc(pkt_size, GFP_KERNEL); + if (!p) + return -ENOMEM; + + pkt = p; + open = p + APR_HDR_SIZE; + + q6asm_add_hdr(ac, &pkt->hdr, pkt_size, true, ac->stream_id); + pkt->hdr.opcode = ASM_STREAM_CMD_OPEN_READ_V3; + /* Stream prio : High, provide meta info with encoded frames */ + open->src_endpointype = ASM_END_POINT_DEVICE_MATRIX; + + open->preprocopo_id = ASM_STREAM_POSTPROC_TOPO_ID_NONE; + open->bits_per_sample = bits_per_sample; + open->mode_flags = 0x0; + + open->mode_flags |= ASM_LEGACY_STREAM_SESSION << + ASM_SHIFT_STREAM_PERF_MODE_FLAG_IN_OPEN_READ; + + switch (format) { + case FORMAT_LINEAR_PCM: + open->mode_flags |= 0x00; + open->enc_cfg_id = ASM_MEDIA_FMT_MULTI_CHANNEL_PCM_V2; + break; + default: + pr_err("Invalid format[%d]\n", format); + } + + rc = q6asm_ac_send_cmd_sync(ac, pkt); + + kfree(pkt); + return rc; +} + +/** + * q6asm_open_read() - Open audio client for reading + * + * @ac: audio client pointer + * @format: audio sample format + * @bits_per_sample: bits per sample + * + * Return: Will be an negative value on error or zero on success + */ +int q6asm_open_read(struct audio_client *ac, uint32_t format, + uint16_t bits_per_sample) +{ + return __q6asm_open_read(ac, format, bits_per_sample); +} +EXPORT_SYMBOL_GPL(q6asm_open_read); + +/** + * q6asm_write_async() - non blocking write + * + * @ac: audio client pointer + * @len: lenght in bytes + * @msw_ts: timestamp msw + * @lsw_ts: timestamp lsw + * @wflags: flags associated with write + * + * Return: Will be an negative value on error or zero on success + */ +int q6asm_write_async(struct audio_client *ac, uint32_t len, uint32_t msw_ts, + uint32_t lsw_ts, uint32_t wflags) +{ + struct asm_data_cmd_write_v2 *write; + struct audio_port_data *port; + struct audio_buffer *ab; + unsigned long flags; + struct apr_pkt *pkt; + int pkt_size; + int rc = 0; + void *p; + + pkt_size = APR_HDR_SIZE + sizeof(*write); + p = kzalloc(pkt_size, GFP_ATOMIC); + if (!p) + return -ENOMEM; + + pkt = p; + write = p + APR_HDR_SIZE; + + spin_lock_irqsave(&ac->lock, flags); + port = &ac->port[SNDRV_PCM_STREAM_PLAYBACK]; + q6asm_add_hdr(ac, &pkt->hdr, pkt_size, false, ac->stream_id); + + ab = &port->buf[port->dsp_buf]; + pkt->hdr.token = port->dsp_buf; + pkt->hdr.opcode = ASM_DATA_CMD_WRITE_V2; + write->buf_addr_lsw = lower_32_bits(ab->phys); + write->buf_addr_msw = upper_32_bits(ab->phys); + write->buf_size = len; + write->seq_id = port->dsp_buf; + write->timestamp_lsw = lsw_ts; + write->timestamp_msw = msw_ts; + write->mem_map_handle = + ac->port[SNDRV_PCM_STREAM_PLAYBACK].mem_map_handle; + + if (wflags == NO_TIMESTAMP) + write->flags = (wflags & 0x800000FF); + else + write->flags = (0x80000000 | wflags); + + port->dsp_buf++; + + if (port->dsp_buf >= port->num_periods) + port->dsp_buf = 0; + + spin_unlock_irqrestore(&ac->lock, flags); + rc = apr_send_pkt(ac->adev, pkt); + if (rc == pkt_size) + rc = 0; + + kfree(pkt); + return rc; +} +EXPORT_SYMBOL_GPL(q6asm_write_async); + +static void q6asm_reset_buf_state(struct audio_client *ac) +{ + struct audio_port_data *port = NULL; + unsigned long flags; + + spin_lock_irqsave(&ac->lock, flags); + port = &ac->port[SNDRV_PCM_STREAM_PLAYBACK]; + port->dsp_buf = 0; + port = &ac->port[SNDRV_PCM_STREAM_CAPTURE]; + port->dsp_buf = 0; + spin_unlock_irqrestore(&ac->lock, flags); +} + +static int __q6asm_cmd(struct audio_client *ac, int cmd, bool wait) +{ + int stream_id = ac->stream_id; + struct apr_pkt pkt; + int rc; + + q6asm_add_hdr(ac, &pkt.hdr, APR_HDR_SIZE, true, stream_id); + + switch (cmd) { + case CMD_PAUSE: + pkt.hdr.opcode = ASM_SESSION_CMD_PAUSE; + break; + case CMD_SUSPEND: + pkt.hdr.opcode = ASM_SESSION_CMD_SUSPEND; + break; + case CMD_FLUSH: + pkt.hdr.opcode = ASM_STREAM_CMD_FLUSH; + break; + case CMD_OUT_FLUSH: + pkt.hdr.opcode = ASM_STREAM_CMD_FLUSH_READBUFS; + break; + case CMD_EOS: + pkt.hdr.opcode = ASM_DATA_CMD_EOS; + break; + case CMD_CLOSE: + pkt.hdr.opcode = ASM_STREAM_CMD_CLOSE; + break; + default: + return -EINVAL; + } + + if (wait) + rc = q6asm_ac_send_cmd_sync(ac, &pkt); + else + return apr_send_pkt(ac->adev, &pkt); + + if (rc < 0) + return rc; + + if (cmd == CMD_FLUSH) + q6asm_reset_buf_state(ac); + + return 0; +} + +/** + * q6asm_cmd() - run cmd on audio client + * + * @ac: audio client pointer + * @cmd: command to run on audio client. + * + * Return: Will be an negative value on error or zero on success + */ +int q6asm_cmd(struct audio_client *ac, int cmd) +{ + return __q6asm_cmd(ac, cmd, true); +} +EXPORT_SYMBOL_GPL(q6asm_cmd); + +/** + * q6asm_cmd_nowait() - non blocking, run cmd on audio client + * + * @ac: audio client pointer + * @cmd: command to run on audio client. + * + * Return: Will be an negative value on error or zero on success + */ +int q6asm_cmd_nowait(struct audio_client *ac, int cmd) +{ + return __q6asm_cmd(ac, cmd, false); +} +EXPORT_SYMBOL_GPL(q6asm_cmd_nowait); + +static int q6asm_probe(struct apr_device *adev) +{ + struct device *dev = &adev->dev; + struct device_node *dais_np; + struct q6asm *q6asm; + + q6asm = devm_kzalloc(dev, sizeof(*q6asm), GFP_KERNEL); + if (!q6asm) + return -ENOMEM; + + q6core_get_svc_api_info(adev->svc_id, &q6asm->ainfo); + + q6asm->dev = dev; + q6asm->adev = adev; + init_waitqueue_head(&q6asm->mem_wait); + spin_lock_init(&q6asm->slock); + dev_set_drvdata(dev, q6asm); + + dais_np = of_get_child_by_name(dev->of_node, "dais"); + if (dais_np) { + q6asm->pdev_dais = of_platform_device_create(dais_np, + "q6asm-dai", dev); + of_node_put(dais_np); + } + + return 0; +} + +static int q6asm_remove(struct apr_device *adev) +{ + struct q6asm *q6asm = dev_get_drvdata(&adev->dev); + + if (q6asm->pdev_dais) + of_platform_device_destroy(&q6asm->pdev_dais->dev, NULL); + + return 0; +} +static const struct of_device_id q6asm_device_id[] = { + { .compatible = "qcom,q6asm" }, + {}, +}; +MODULE_DEVICE_TABLE(of, q6asm_device_id); + +static struct apr_driver qcom_q6asm_driver = { + .probe = q6asm_probe, + .remove = q6asm_remove, + .callback = q6asm_srvc_callback, + .driver = { + .name = "qcom-q6asm", + .of_match_table = of_match_ptr(q6asm_device_id), + }, +}; + +module_apr_driver(qcom_q6asm_driver); +MODULE_DESCRIPTION("Q6 Audio Stream Manager driver"); +MODULE_LICENSE("GPL v2"); |