/* Copyright (c) 2012-2017, The Linux Foundation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and * only version 2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "msm-pcm-q6-v2.h" #include "msm-pcm-routing-v2.h" enum stream_state { IDLE = 0, STOPPED, RUNNING, }; static struct audio_locks the_locks; #define PCM_MASTER_VOL_MAX_STEPS 0x2000 static const DECLARE_TLV_DB_LINEAR(msm_pcm_vol_gain, 0, PCM_MASTER_VOL_MAX_STEPS); struct snd_msm { struct snd_card *card; struct snd_pcm *pcm; }; #define CMD_EOS_MIN_TIMEOUT_LENGTH 50 #define CMD_EOS_TIMEOUT_MULTIPLIER (HZ * 50) #define MAX_PB_COPY_RETRIES 3 #define MAX_PCM_STREAMS 2 static struct snd_pcm_hardware msm_pcm_hardware_capture = { .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_BLOCK_TRANSFER | 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 | SNDRV_PCM_FMTBIT_S24_3LE), .rates = SNDRV_PCM_RATE_8000_48000, .rate_min = 8000, .rate_max = 48000, .channels_min = 1, .channels_max = 4, .buffer_bytes_max = CAPTURE_MAX_NUM_PERIODS * CAPTURE_MAX_PERIOD_SIZE, .period_bytes_min = CAPTURE_MIN_PERIOD_SIZE, .period_bytes_max = CAPTURE_MAX_PERIOD_SIZE, .periods_min = CAPTURE_MIN_NUM_PERIODS, .periods_max = CAPTURE_MAX_NUM_PERIODS, .fifo_size = 0, }; static struct snd_pcm_hardware msm_pcm_hardware_playback = { .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_BLOCK_TRANSFER | 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 | SNDRV_PCM_FMTBIT_S24_3LE), .rates = SNDRV_PCM_RATE_8000_192000, .rate_min = 8000, .rate_max = 192000, .channels_min = 1, .channels_max = 8, .buffer_bytes_max = PLAYBACK_MAX_NUM_PERIODS * PLAYBACK_MAX_PERIOD_SIZE, .period_bytes_min = PLAYBACK_MIN_PERIOD_SIZE, .period_bytes_max = PLAYBACK_MAX_PERIOD_SIZE, .periods_min = PLAYBACK_MIN_NUM_PERIODS, .periods_max = PLAYBACK_MAX_NUM_PERIODS, .fifo_size = 0, }; /* Conventional and unconventional sample rate supported */ static unsigned int supported_sample_rates[] = { 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 88200, 96000, 176400, 192000 }; static struct snd_pcm_hw_constraint_list constraints_sample_rates = { .count = ARRAY_SIZE(supported_sample_rates), .list = supported_sample_rates, .mask = 0, }; static unsigned long msm_pcm_fe_topology[MSM_FRONTEND_DAI_MAX][MAX_PCM_STREAMS]; /* default value is DTS (i.e read from device tree) */ static char const *msm_pcm_fe_topology_text[] = { "DTS", "ULL", "ULL_PP", "LL" }; static const struct soc_enum msm_pcm_fe_topology_enum[] = { SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(msm_pcm_fe_topology_text), msm_pcm_fe_topology_text), }; static void msm_pcm_route_event_handler(enum msm_pcm_routing_event event, void *priv_data) { struct msm_audio *prtd = priv_data; BUG_ON(!prtd); pr_debug("%s: event %x\n", __func__, event); switch (event) { case MSM_PCM_RT_EVT_BUF_RECFG: q6asm_cmd(prtd->audio_client, CMD_PAUSE); q6asm_cmd(prtd->audio_client, CMD_FLUSH); q6asm_run(prtd->audio_client, 0, 0, 0); default: break; } } static void event_handler(uint32_t opcode, uint32_t token, uint32_t *payload, void *priv) { struct msm_audio *prtd = priv; struct snd_pcm_substream *substream = prtd->substream; uint32_t *ptrmem = (uint32_t *)payload; uint32_t idx = 0; uint32_t size = 0; switch (opcode) { case ASM_DATA_EVENT_WRITE_DONE_V2: { pr_debug("ASM_DATA_EVENT_WRITE_DONE_V2\n"); pr_debug("Buffer Consumed = 0x%08x\n", *ptrmem); prtd->pcm_irq_pos += prtd->pcm_count; if (atomic_read(&prtd->start)) snd_pcm_period_elapsed(substream); atomic_inc(&prtd->out_count); wake_up(&the_locks.write_wait); if (!atomic_read(&prtd->start)) break; if (!prtd->mmap_flag || prtd->reset_event) break; if (q6asm_is_cpu_buf_avail_nolock(IN, prtd->audio_client, &size, &idx)) { pr_debug("%s:writing %d bytes of buffer to dsp 2\n", __func__, prtd->pcm_count); q6asm_write_nolock(prtd->audio_client, prtd->pcm_count, 0, 0, NO_TIMESTAMP); } break; } case ASM_DATA_EVENT_RENDERED_EOS: pr_debug("ASM_DATA_EVENT_RENDERED_EOS\n"); clear_bit(CMD_EOS, &prtd->cmd_pending); wake_up(&the_locks.eos_wait); break; case ASM_DATA_EVENT_READ_DONE_V2: { pr_debug("ASM_DATA_EVENT_READ_DONE_V2\n"); pr_debug("token = 0x%08x\n", token); prtd->in_frame_info[token].size = payload[4]; prtd->in_frame_info[token].offset = payload[5]; /* assume data size = 0 during flushing */ if (prtd->in_frame_info[token].size) { prtd->pcm_irq_pos += prtd->in_frame_info[token].size; pr_debug("pcm_irq_pos=%d\n", prtd->pcm_irq_pos); if (atomic_read(&prtd->start)) snd_pcm_period_elapsed(substream); if (atomic_read(&prtd->in_count) <= prtd->periods) atomic_inc(&prtd->in_count); wake_up(&the_locks.read_wait); if (prtd->mmap_flag && q6asm_is_cpu_buf_avail_nolock(OUT, prtd->audio_client, &size, &idx) && (substream->runtime->status->state == SNDRV_PCM_STATE_RUNNING)) q6asm_read_nolock(prtd->audio_client); } else { pr_debug("%s: reclaim flushed buf in_count %x\n", __func__, atomic_read(&prtd->in_count)); prtd->pcm_irq_pos += prtd->pcm_count; if (prtd->mmap_flag) { if (q6asm_is_cpu_buf_avail_nolock(OUT, prtd->audio_client, &size, &idx) && (substream->runtime->status->state == SNDRV_PCM_STATE_RUNNING)) q6asm_read_nolock(prtd->audio_client); } else { atomic_inc(&prtd->in_count); } if (atomic_read(&prtd->in_count) == prtd->periods) { pr_info("%s: reclaimed all bufs\n", __func__); if (atomic_read(&prtd->start)) snd_pcm_period_elapsed(substream); wake_up(&the_locks.read_wait); } } break; } case APR_BASIC_RSP_RESULT: { switch (payload[0]) { case ASM_SESSION_CMD_RUN_V2: if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK) { atomic_set(&prtd->start, 1); break; } if (prtd->mmap_flag) { pr_debug("%s:writing %d bytes of buffer to dsp\n", __func__, prtd->pcm_count); q6asm_write_nolock(prtd->audio_client, prtd->pcm_count, 0, 0, NO_TIMESTAMP); } else { while (atomic_read(&prtd->out_needed)) { pr_debug("%s:writing %d bytes of buffer to dsp\n", __func__, prtd->pcm_count); q6asm_write_nolock(prtd->audio_client, prtd->pcm_count, 0, 0, NO_TIMESTAMP); atomic_dec(&prtd->out_needed); wake_up(&the_locks.write_wait); }; } atomic_set(&prtd->start, 1); break; default: pr_debug("%s:Payload = [0x%x]stat[0x%x]\n", __func__, payload[0], payload[1]); break; } } break; case RESET_EVENTS: pr_debug("%s RESET_EVENTS\n", __func__); prtd->pcm_irq_pos += prtd->pcm_count; atomic_inc(&prtd->out_count); atomic_inc(&prtd->in_count); prtd->reset_event = true; if (atomic_read(&prtd->start)) snd_pcm_period_elapsed(substream); wake_up(&the_locks.eos_wait); wake_up(&the_locks.write_wait); wake_up(&the_locks.read_wait); break; case ASM_SESSION_CMDRSP_GET_PATH_DELAY_V2: pr_debug("%s got ASM_SESSION_CMDRSP_GET_PATH_DELAY_V2 event -> don't know what to do\n", __func__); break; case ASM_CMDRSP_SHARED_MEM_MAP_REGIONS: pr_debug("%s got ASM_CMDRSP_SHARED_MEM_MAP_REGIONS event -> don't know what to do\n", __func__); break; default: pr_debug("Not Supported Event opcode[0x%x]\n", opcode); break; } } static int msm_pcm_playback_prepare(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; struct snd_soc_pcm_runtime *soc_prtd = substream->private_data; struct msm_audio *prtd = runtime->private_data; struct msm_plat_data *pdata; struct snd_pcm_hw_params *params; int ret; uint16_t bits_per_sample; uint16_t sample_word_size; pdata = (struct msm_plat_data *) dev_get_drvdata(soc_prtd->platform->dev); if (!pdata) { pr_err("%s: platform data not populated\n", __func__); return -EINVAL; } if (!prtd || !prtd->audio_client) { pr_err("%s: private data null or audio client freed\n", __func__); return -EINVAL; } params = &soc_prtd->dpcm[substream->stream].hw_params; pr_debug("%s\n", __func__); prtd->pcm_size = snd_pcm_lib_buffer_bytes(substream); prtd->pcm_count = snd_pcm_lib_period_bytes(substream); prtd->pcm_irq_pos = 0; /* rate and channels are sent to audio driver */ prtd->samp_rate = runtime->rate; prtd->channel_mode = runtime->channels; if (prtd->enabled) return 0; prtd->audio_client->perf_mode = pdata->perf_mode_set; pr_debug("%s: perf: %x\n", __func__, prtd->audio_client->perf_mode); switch (params_format(params)) { case SNDRV_PCM_FORMAT_S24_LE: bits_per_sample = 24; sample_word_size = 32; break; case SNDRV_PCM_FORMAT_S24_3LE: bits_per_sample = 24; sample_word_size = 24; break; case SNDRV_PCM_FORMAT_S16_LE: default: bits_per_sample = 16; sample_word_size = 16; break; } ret = q6asm_open_write_v3(prtd->audio_client, FORMAT_LINEAR_PCM, bits_per_sample); if (ret < 0) { pr_err("%s: q6asm_open_write_v2 failed\n", __func__); q6asm_audio_client_free(prtd->audio_client); prtd->audio_client = NULL; return -ENOMEM; } ret = q6asm_send_cal(prtd->audio_client); if (ret < 0) pr_debug("%s : Send cal failed : %d", __func__, ret); pr_debug("%s: session ID %d\n", __func__, prtd->audio_client->session); prtd->session_id = prtd->audio_client->session; ret = msm_pcm_routing_reg_phy_stream(soc_prtd->dai_link->be_id, prtd->audio_client->perf_mode, prtd->session_id, substream->stream); if (ret) { pr_err("%s: stream reg failed ret:%d\n", __func__, ret); return ret; } ret = q6asm_media_format_block_multi_ch_pcm_v3( prtd->audio_client, runtime->rate, runtime->channels, !prtd->set_channel_map, prtd->channel_map, bits_per_sample, sample_word_size); if (ret < 0) pr_info("%s: CMD Format block failed\n", __func__); atomic_set(&prtd->out_count, runtime->periods); prtd->enabled = 1; prtd->cmd_pending = 0; prtd->cmd_interrupt = 0; return 0; } static int msm_pcm_capture_prepare(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; struct msm_audio *prtd = runtime->private_data; struct snd_soc_pcm_runtime *soc_prtd = substream->private_data; struct msm_plat_data *pdata; struct snd_pcm_hw_params *params; struct msm_pcm_routing_evt event; int ret = 0; int i = 0; uint16_t bits_per_sample = 16; uint16_t sample_word_size; pdata = (struct msm_plat_data *) dev_get_drvdata(soc_prtd->platform->dev); if (!pdata) { pr_err("%s: platform data not populated\n", __func__); return -EINVAL; } if (!prtd || !prtd->audio_client) { pr_err("%s: private data null or audio client freed\n", __func__); return -EINVAL; } if (prtd->enabled == IDLE) { pr_debug("%s:perf_mode=%d periods=%d\n", __func__, pdata->perf_mode_set, runtime->periods); params = &soc_prtd->dpcm[substream->stream].hw_params; if ((params_format(params) == SNDRV_PCM_FORMAT_S24_LE) || (params_format(params) == SNDRV_PCM_FORMAT_S24_3LE)) bits_per_sample = 24; /* ULL mode is not supported in capture path */ if (pdata->perf_mode_set == LEGACY_PCM_MODE) prtd->audio_client->perf_mode = LEGACY_PCM_MODE; else prtd->audio_client->perf_mode = LOW_LATENCY_PCM_MODE; pr_debug("%s Opening %d-ch PCM read stream, perf_mode %d\n", __func__, params_channels(params), prtd->audio_client->perf_mode); ret = q6asm_open_read_v3(prtd->audio_client, FORMAT_LINEAR_PCM, bits_per_sample); if (ret < 0) { pr_err("%s: q6asm_open_read failed\n", __func__); q6asm_audio_client_free(prtd->audio_client); prtd->audio_client = NULL; return -ENOMEM; } ret = q6asm_send_cal(prtd->audio_client); if (ret < 0) pr_debug("%s : Send cal failed : %d", __func__, ret); pr_debug("%s: session ID %d\n", __func__, prtd->audio_client->session); prtd->session_id = prtd->audio_client->session; event.event_func = msm_pcm_route_event_handler; event.priv_data = (void *) prtd; ret = msm_pcm_routing_reg_phy_stream_v2( soc_prtd->dai_link->be_id, prtd->audio_client->perf_mode, prtd->session_id, substream->stream, event); if (ret) { pr_err("%s: stream reg failed ret:%d\n", __func__, ret); return ret; } } prtd->pcm_size = snd_pcm_lib_buffer_bytes(substream); prtd->pcm_count = snd_pcm_lib_period_bytes(substream); prtd->pcm_irq_pos = 0; /* rate and channels are sent to audio driver */ prtd->samp_rate = runtime->rate; prtd->channel_mode = runtime->channels; if (prtd->enabled == IDLE || prtd->enabled == STOPPED) { for (i = 0; i < runtime->periods; i++) q6asm_read(prtd->audio_client); prtd->periods = runtime->periods; } if (prtd->enabled != IDLE) return 0; switch (runtime->format) { case SNDRV_PCM_FORMAT_S24_LE: bits_per_sample = 24; sample_word_size = 32; break; case SNDRV_PCM_FORMAT_S24_3LE: bits_per_sample = 24; sample_word_size = 24; break; case SNDRV_PCM_FORMAT_S16_LE: default: bits_per_sample = 16; sample_word_size = 16; break; } pr_debug("%s: Samp_rate = %d Channel = %d bit width = %d, word size = %d\n", __func__, prtd->samp_rate, prtd->channel_mode, bits_per_sample, sample_word_size); ret = q6asm_enc_cfg_blk_pcm_format_support_v3(prtd->audio_client, prtd->samp_rate, prtd->channel_mode, bits_per_sample, sample_word_size); if (ret < 0) pr_debug("%s: cmd cfg pcm was block failed", __func__); prtd->enabled = RUNNING; return ret; } static int msm_pcm_trigger(struct snd_pcm_substream *substream, int cmd) { int ret = 0; struct snd_pcm_runtime *runtime = substream->runtime; struct msm_audio *prtd = runtime->private_data; switch (cmd) { case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_RESUME: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: if(test_bit(CMD_EOS, &prtd->cmd_pending)) { pr_debug("%s: CMD_EOS pending -> ignore start\n", __func__); ret = EINVAL; } else { pr_debug("%s: Trigger start\n", __func__); ret = q6asm_run_nowait(prtd->audio_client, 0, 0, 0); } break; case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: pr_debug("SNDRV_PCM_TRIGGER_PAUSE\n"); ret = q6asm_cmd_nowait(prtd->audio_client, CMD_PAUSE); if (!ret) { ret = q6asm_cmd_nowait(prtd->audio_client, CMD_FLUSH); } atomic_set(&prtd->start, 0); break; default: pr_debug("%s: unhandled command:%d\n",__func__,cmd); ret = -EINVAL; break; } return ret; } static int msm_pcm_open(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; struct snd_soc_pcm_runtime *soc_prtd = substream->private_data; struct msm_audio *prtd; int ret = 0; prtd = kzalloc(sizeof(struct msm_audio), GFP_KERNEL); if (prtd == NULL) { pr_err("Failed to allocate memory for msm_audio\n"); return -ENOMEM; } prtd->substream = substream; prtd->audio_client = q6asm_audio_client_alloc( (app_cb)event_handler, prtd); if (!prtd->audio_client) { pr_info("%s: Could not allocate memory\n", __func__); kfree(prtd); return -ENOMEM; } prtd->audio_client->dev = soc_prtd->platform->dev; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) runtime->hw = msm_pcm_hardware_playback; /* Capture path */ else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) runtime->hw = msm_pcm_hardware_capture; else { pr_err("Invalid Stream type %d\n", substream->stream); return -EINVAL; } ret = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &constraints_sample_rates); if (ret < 0) pr_info("snd_pcm_hw_constraint_list failed\n"); /* Ensure that buffer size is a multiple of period size */ ret = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); if (ret < 0) pr_info("snd_pcm_hw_constraint_integer failed\n"); if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { ret = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, PLAYBACK_MIN_NUM_PERIODS * PLAYBACK_MIN_PERIOD_SIZE, PLAYBACK_MAX_NUM_PERIODS * PLAYBACK_MAX_PERIOD_SIZE); if (ret < 0) { pr_err("constraint for buffer bytes min max ret = %d\n", ret); } } if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { ret = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, CAPTURE_MIN_NUM_PERIODS * CAPTURE_MIN_PERIOD_SIZE, CAPTURE_MAX_NUM_PERIODS * CAPTURE_MAX_PERIOD_SIZE); if (ret < 0) { pr_err("constraint for buffer bytes min max ret = %d\n", ret); } } ret = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32); if (ret < 0) { pr_err("constraint for period bytes step ret = %d\n", ret); } ret = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 32); if (ret < 0) { pr_err("constraint for buffer bytes step ret = %d\n", ret); } prtd->enabled = IDLE; prtd->dsp_cnt = 0; prtd->set_channel_map = false; prtd->reset_event = false; runtime->private_data = prtd; return 0; } static int msm_pcm_playback_copy(struct snd_pcm_substream *substream, int a, snd_pcm_uframes_t hwoff, void __user *buf, snd_pcm_uframes_t frames) { int ret = 0; int fbytes = 0; int xfer = 0; char *bufptr = NULL; void *data = NULL; uint32_t idx = 0; uint32_t size = 0; uint32_t retries = 0; struct snd_pcm_runtime *runtime = substream->runtime; struct msm_audio *prtd = runtime->private_data; fbytes = frames_to_bytes(runtime, frames); pr_debug("%s: prtd->out_count = %d\n", __func__, atomic_read(&prtd->out_count)); while ((fbytes > 0) && (retries < MAX_PB_COPY_RETRIES)) { if (prtd->reset_event) { pr_err("%s: In SSR return ENETRESET before wait\n", __func__); return -ENETRESET; } ret = wait_event_timeout(the_locks.write_wait, (atomic_read(&prtd->out_count)), 5 * HZ); if (!ret) { pr_err("%s: wait_event_timeout failed\n", __func__); ret = -ETIMEDOUT; goto fail; } ret = 0; if (prtd->reset_event) { pr_err("%s: In SSR return ENETRESET after wait\n", __func__); return -ENETRESET; } if (!atomic_read(&prtd->out_count)) { pr_err("%s: pcm stopped out_count 0\n", __func__); return 0; } data = q6asm_is_cpu_buf_avail(IN, prtd->audio_client, &size, &idx); if (data == NULL) { retries++; continue; } else { retries = 0; } if (fbytes > size) xfer = size; else xfer = fbytes; bufptr = data; if (bufptr) { pr_debug("%s:fbytes =%d: xfer=%d size=%d\n", __func__, fbytes, xfer, size); if (copy_from_user(bufptr, buf, xfer)) { ret = -EFAULT; pr_err("%s: copy_from_user failed\n", __func__); q6asm_cpu_buf_release(IN, prtd->audio_client); goto fail; } buf += xfer; fbytes -= xfer; pr_debug("%s:fbytes = %d: xfer=%d\n", __func__, fbytes, xfer); if (atomic_read(&prtd->start)) { pr_debug("%s:writing %d bytes of buffer to dsp\n", __func__, xfer); ret = q6asm_write(prtd->audio_client, xfer, 0, 0, NO_TIMESTAMP); if (ret < 0) { ret = -EFAULT; q6asm_cpu_buf_release(IN, prtd->audio_client); goto fail; } } else atomic_inc(&prtd->out_needed); atomic_dec(&prtd->out_count); } } fail: if (retries >= MAX_PB_COPY_RETRIES) ret = -ENOMEM; return ret; } static int msm_pcm_playback_close(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; struct snd_soc_pcm_runtime *soc_prtd = substream->private_data; struct msm_audio *prtd = runtime->private_data; uint32_t timeout; int dir = 0; int ret = 0; pr_debug("%s: cmd_pending 0x%lx\n", __func__, prtd->cmd_pending); if (prtd->audio_client) { dir = IN; /* determine timeout length */ if (runtime->frame_bits == 0 || runtime->rate == 0) { timeout = CMD_EOS_MIN_TIMEOUT_LENGTH; } else { timeout = (runtime->period_size * CMD_EOS_TIMEOUT_MULTIPLIER) / ((runtime->frame_bits / 8) * runtime->rate); if (timeout < CMD_EOS_MIN_TIMEOUT_LENGTH) timeout = CMD_EOS_MIN_TIMEOUT_LENGTH; } pr_debug("%s: CMD_EOS timeout is %d\n", __func__, timeout); ret = wait_event_timeout(the_locks.eos_wait, !test_bit(CMD_EOS, &prtd->cmd_pending), timeout); if (!ret) pr_err("%s: CMD_EOS failed, cmd_pending 0x%lx\n", __func__, prtd->cmd_pending); q6asm_cmd(prtd->audio_client, CMD_CLOSE); q6asm_audio_client_buf_free_contiguous(dir, prtd->audio_client); q6asm_audio_client_free(prtd->audio_client); } msm_pcm_routing_dereg_phy_stream(soc_prtd->dai_link->be_id, SNDRV_PCM_STREAM_PLAYBACK); kfree(prtd); runtime->private_data = NULL; return 0; } static int msm_pcm_capture_copy(struct snd_pcm_substream *substream, int channel, snd_pcm_uframes_t hwoff, void __user *buf, snd_pcm_uframes_t frames) { int ret = 0; int fbytes = 0; int xfer; char *bufptr; void *data = NULL; static uint32_t idx; static uint32_t size; uint32_t offset = 0; struct snd_pcm_runtime *runtime = substream->runtime; struct msm_audio *prtd = substream->runtime->private_data; pr_debug("%s\n", __func__); fbytes = frames_to_bytes(runtime, frames); pr_debug("appl_ptr %d\n", (int)runtime->control->appl_ptr); pr_debug("hw_ptr %d\n", (int)runtime->status->hw_ptr); pr_debug("avail_min %d\n", (int)runtime->control->avail_min); if (prtd->reset_event) { pr_err("%s: In SSR return ENETRESET before wait\n", __func__); return -ENETRESET; } ret = wait_event_timeout(the_locks.read_wait, (atomic_read(&prtd->in_count)), 5 * HZ); if (!ret) { pr_debug("%s: wait_event_timeout failed\n", __func__); goto fail; } if (prtd->reset_event) { pr_err("%s: In SSR return ENETRESET after wait\n", __func__); return -ENETRESET; } if (!atomic_read(&prtd->in_count)) { pr_debug("%s: pcm stopped in_count 0\n", __func__); return 0; } pr_debug("Checking if valid buffer is available...%pK\n", data); data = q6asm_is_cpu_buf_avail(OUT, prtd->audio_client, &size, &idx); bufptr = data; pr_debug("Size = %d\n", size); pr_debug("fbytes = %d\n", fbytes); pr_debug("idx = %d\n", idx); if (bufptr) { xfer = fbytes; if (xfer > size) xfer = size; offset = prtd->in_frame_info[idx].offset; pr_debug("Offset value = %d\n", offset); if (copy_to_user(buf, bufptr+offset, xfer)) { pr_err("Failed to copy buf to user\n"); ret = -EFAULT; q6asm_cpu_buf_release(OUT, prtd->audio_client); goto fail; } fbytes -= xfer; size -= xfer; prtd->in_frame_info[idx].offset += xfer; pr_debug("%s:fbytes = %d: size=%d: xfer=%d\n", __func__, fbytes, size, xfer); pr_debug(" Sending next buffer to dsp\n"); memset(&prtd->in_frame_info[idx], 0, sizeof(struct msm_audio_in_frame_info)); atomic_dec(&prtd->in_count); ret = q6asm_read(prtd->audio_client); if (ret < 0) { pr_err("q6asm read failed\n"); ret = -EFAULT; q6asm_cpu_buf_release(OUT, prtd->audio_client); goto fail; } } else pr_err("No valid buffer\n"); pr_debug("Returning from capture_copy... %d\n", ret); fail: return ret; } static int msm_pcm_capture_close(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; struct snd_soc_pcm_runtime *soc_prtd = substream->private_data; struct msm_audio *prtd = runtime->private_data; int dir = OUT; pr_debug("%s\n", __func__); if (prtd->audio_client) { q6asm_cmd(prtd->audio_client, CMD_CLOSE); q6asm_audio_client_buf_free_contiguous(dir, prtd->audio_client); q6asm_audio_client_free(prtd->audio_client); } msm_pcm_routing_dereg_phy_stream(soc_prtd->dai_link->be_id, SNDRV_PCM_STREAM_CAPTURE); kfree(prtd); runtime->private_data = NULL; return 0; } static int msm_pcm_copy(struct snd_pcm_substream *substream, int a, snd_pcm_uframes_t hwoff, void __user *buf, snd_pcm_uframes_t frames) { int ret = 0; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ret = msm_pcm_playback_copy(substream, a, hwoff, buf, frames); else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) ret = msm_pcm_capture_copy(substream, a, hwoff, buf, frames); return ret; } static int msm_pcm_close(struct snd_pcm_substream *substream) { int ret = 0; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ret = msm_pcm_playback_close(substream); else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) ret = msm_pcm_capture_close(substream); return ret; } static int msm_pcm_prepare(struct snd_pcm_substream *substream) { int ret = 0; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ret = msm_pcm_playback_prepare(substream); else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) ret = msm_pcm_capture_prepare(substream); return ret; } static snd_pcm_uframes_t msm_pcm_pointer(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; struct msm_audio *prtd = runtime->private_data; if (prtd->pcm_irq_pos >= prtd->pcm_size) prtd->pcm_irq_pos = 0; pr_debug("pcm_irq_pos = %d\n", prtd->pcm_irq_pos); return bytes_to_frames(runtime, (prtd->pcm_irq_pos)); } static int msm_pcm_mmap(struct snd_pcm_substream *substream, struct vm_area_struct *vma) { struct snd_pcm_runtime *runtime = substream->runtime; struct msm_audio *prtd = runtime->private_data; struct audio_client *ac = prtd->audio_client; struct audio_port_data *apd = ac->port; struct audio_buffer *ab; int dir = -1; prtd->mmap_flag = 1; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) dir = IN; else dir = OUT; ab = &(apd[dir].buf[0]); return msm_audio_ion_mmap(ab, vma); } static int msm_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_pcm_runtime *runtime = substream->runtime; struct snd_soc_pcm_runtime *soc_prtd = substream->private_data; struct msm_audio *prtd = runtime->private_data; struct msm_plat_data *pdata; struct snd_dma_buffer *dma_buf = &substream->dma_buffer; struct audio_buffer *buf; int dir, ret; unsigned long fe_id = soc_prtd->dai_link->be_id; unsigned long topology; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) dir = IN; else dir = OUT; pdata = (struct msm_plat_data *) dev_get_drvdata(soc_prtd->platform->dev); if (!pdata) { ret = -EINVAL; pr_err("%s: platform data not populated ret: %d\n", __func__, ret); return ret; } topology = msm_pcm_fe_topology[fe_id][substream->stream]; if (!strcmp(msm_pcm_fe_topology_text[topology], "ULL_PP")) pdata->perf_mode_set = ULL_POST_PROCESSING_PCM_MODE; else if (!strcmp(msm_pcm_fe_topology_text[topology], "ULL")) pdata->perf_mode_set = ULTRA_LOW_LATENCY_PCM_MODE; else if (!strcmp(msm_pcm_fe_topology_text[topology], "LL")) pdata->perf_mode_set = LOW_LATENCY_PCM_MODE; else /* use the default from the device tree */ pdata->perf_mode_set = pdata->perf_mode; ret = q6asm_audio_client_buf_alloc_contiguous(dir, prtd->audio_client, (params_buffer_bytes(params) / params_periods(params)), params_periods(params)); if (ret < 0) { pr_err("Audio Start: Buffer Allocation failed rc = %d\n", ret); return -ENOMEM; } buf = prtd->audio_client->port[dir].buf; if (buf == NULL || buf[0].data == NULL) return -ENOMEM; pr_debug("%s:buf = %pK\n", __func__, buf); dma_buf->dev.type = SNDRV_DMA_TYPE_DEV; dma_buf->dev.dev = substream->pcm->card->dev; dma_buf->private_data = NULL; dma_buf->area = buf[0].data; dma_buf->addr = buf[0].phys; dma_buf->bytes = params_buffer_bytes(params); if (!dma_buf->area) return -ENOMEM; snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer); return 0; } static struct snd_pcm_ops msm_pcm_ops = { .open = msm_pcm_open, .copy = msm_pcm_copy, .hw_params = msm_pcm_hw_params, .close = msm_pcm_close, .ioctl = snd_pcm_lib_ioctl, .prepare = msm_pcm_prepare, .trigger = msm_pcm_trigger, .pointer = msm_pcm_pointer, .mmap = msm_pcm_mmap, }; static int msm_pcm_set_volume(struct msm_audio *prtd, uint32_t volume) { int rc = 0; if (prtd && prtd->audio_client) { pr_debug("%s: channels %d volume 0x%x\n", __func__, prtd->channel_mode, volume); rc = q6asm_set_volume(prtd->audio_client, volume); if (rc < 0) { pr_err("%s: Send Volume command failed rc=%d\n", __func__, rc); } } return rc; } static int msm_pcm_volume_ctl_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_pcm_volume *vol = snd_kcontrol_chip(kcontrol); struct snd_pcm_substream *substream = vol->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; struct msm_audio *prtd; pr_debug("%s\n", __func__); if (!substream) { pr_err("%s substream not found\n", __func__); return -ENODEV; } if (!substream->runtime) { pr_err("%s substream runtime not found\n", __func__); return 0; } prtd = substream->runtime->private_data; if (prtd) ucontrol->value.integer.value[0] = prtd->volume; return 0; } static int msm_pcm_volume_ctl_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { int rc = 0; struct snd_pcm_volume *vol = snd_kcontrol_chip(kcontrol); struct snd_pcm_substream *substream = vol->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; struct msm_audio *prtd; int volume = ucontrol->value.integer.value[0]; pr_debug("%s: volume : 0x%x\n", __func__, volume); if (!substream) { pr_err("%s substream not found\n", __func__); return -ENODEV; } if (!substream->runtime) { pr_err("%s substream runtime not found\n", __func__); return 0; } prtd = substream->runtime->private_data; if (prtd) { rc = msm_pcm_set_volume(prtd, volume); prtd->volume = volume; } return rc; } static int msm_pcm_add_volume_control(struct snd_soc_pcm_runtime *rtd) { int ret = 0; struct snd_pcm *pcm = rtd->pcm; struct snd_pcm_volume *volume_info; struct snd_kcontrol *kctl; dev_dbg(rtd->dev, "%s, Volume control add\n", __func__); ret = snd_pcm_add_volume_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, NULL, 1, rtd->dai_link->be_id, &volume_info); if (ret < 0) { pr_err("%s volume control failed ret %d\n", __func__, ret); return ret; } kctl = volume_info->kctl; kctl->put = msm_pcm_volume_ctl_put; kctl->get = msm_pcm_volume_ctl_get; kctl->tlv.p = msm_pcm_vol_gain; return 0; } static int msm_pcm_chmap_ctl_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { int i; struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol); unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); struct snd_pcm_substream *substream; struct msm_audio *prtd; pr_debug("%s", __func__); substream = snd_pcm_chmap_substream(info, idx); if (!substream) return -ENODEV; if (!substream->runtime) return 0; prtd = substream->runtime->private_data; if (prtd) { prtd->set_channel_map = true; for (i = 0; i < PCM_FORMAT_MAX_NUM_CHANNEL; i++) prtd->channel_map[i] = (char)(ucontrol->value.integer.value[i]); } return 0; } static int msm_pcm_chmap_ctl_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { int i; struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol); unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); struct snd_pcm_substream *substream; struct msm_audio *prtd; pr_debug("%s", __func__); substream = snd_pcm_chmap_substream(info, idx); if (!substream) return -ENODEV; memset(ucontrol->value.integer.value, 0, sizeof(ucontrol->value.integer.value)); if (!substream->runtime) return 0; /* no channels set */ prtd = substream->runtime->private_data; if (prtd && prtd->set_channel_map == true) { for (i = 0; i < PCM_FORMAT_MAX_NUM_CHANNEL; i++) ucontrol->value.integer.value[i] = (int)prtd->channel_map[i]; } else { for (i = 0; i < PCM_FORMAT_MAX_NUM_CHANNEL; i++) ucontrol->value.integer.value[i] = 0; } return 0; } static int msm_pcm_add_chmap_controls(struct snd_soc_pcm_runtime *rtd) { struct snd_pcm *pcm = rtd->pcm; struct snd_pcm_chmap *chmap_info; struct snd_kcontrol *kctl; char device_num[12]; int i, ret = 0; pr_debug("%s, Channel map cntrl add\n", __func__); ret = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, snd_pcm_std_chmaps, PCM_FORMAT_MAX_NUM_CHANNEL, 0, &chmap_info); if (ret < 0) { pr_err("%s, channel map cntrl add failed\n", __func__); return ret; } kctl = chmap_info->kctl; for (i = 0; i < kctl->count; i++) kctl->vd[i].access |= SNDRV_CTL_ELEM_ACCESS_WRITE; snprintf(device_num, sizeof(device_num), "%d", pcm->device); strlcat(kctl->id.name, device_num, sizeof(kctl->id.name)); pr_debug("%s, Overwriting channel map control name to: %s\n", __func__, kctl->id.name); kctl->put = msm_pcm_chmap_ctl_put; kctl->get = msm_pcm_chmap_ctl_get; return 0; } static int msm_pcm_fe_topology_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { const struct soc_enum *e = &msm_pcm_fe_topology_enum[0]; return snd_ctl_enum_info(uinfo, 1, e->items, e->texts); } static int msm_pcm_fe_playback_topology_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { unsigned long fe_id = kcontrol->private_value; unsigned long topology; if (fe_id >= MSM_FRONTEND_DAI_MAX) { pr_err("%s Received out of bound fe_id %lu\n", __func__, fe_id); return -EINVAL; } topology = msm_pcm_fe_topology[fe_id][SNDRV_PCM_STREAM_PLAYBACK]; pr_debug("%s: %lu topology %s\n", __func__, fe_id, msm_pcm_fe_topology_text[topology]); ucontrol->value.enumerated.item[0] = topology; return 0; } static int msm_pcm_fe_playback_topology_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { unsigned long fe_id = kcontrol->private_value; unsigned int item; if (fe_id >= MSM_FRONTEND_DAI_MAX) { pr_err("%s Received out of bound fe_id %lu\n", __func__, fe_id); return -EINVAL; } item = ucontrol->value.enumerated.item[0]; if (item >= ARRAY_SIZE(msm_pcm_fe_topology_text)) { pr_err("%s Received out of bound topology %lu\n", __func__, fe_id); return -EINVAL; } pr_debug("%s: %lu new topology %s\n", __func__, fe_id, msm_pcm_fe_topology_text[item]); msm_pcm_fe_topology[fe_id][SNDRV_PCM_STREAM_PLAYBACK] = item; return 0; } static int msm_pcm_fe_capture_topology_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { unsigned long fe_id = kcontrol->private_value; unsigned long topology; if (fe_id >= MSM_FRONTEND_DAI_MAX) { pr_err("%s Received out of bound fe_id %lu\n", __func__, fe_id); return -EINVAL; } topology = msm_pcm_fe_topology[fe_id][SNDRV_PCM_STREAM_CAPTURE]; pr_debug("%s: %lu topology %s\n", __func__, fe_id, msm_pcm_fe_topology_text[topology]); ucontrol->value.enumerated.item[0] = topology; return 0; } static int msm_pcm_fe_capture_topology_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { unsigned long fe_id = kcontrol->private_value; unsigned int item; if (fe_id >= MSM_FRONTEND_DAI_MAX) { pr_err("%s Received out of bound fe_id %lu\n", __func__, fe_id); return -EINVAL; } item = ucontrol->value.enumerated.item[0]; if (item >= ARRAY_SIZE(msm_pcm_fe_topology_text)) { pr_err("%s Received out of bound topology %lu\n", __func__, fe_id); return -EINVAL; } pr_debug("%s: %lu new topology %s\n", __func__, fe_id, msm_pcm_fe_topology_text[item]); msm_pcm_fe_topology[fe_id][SNDRV_PCM_STREAM_CAPTURE] = item; return 0; } static int msm_pcm_add_fe_topology_control(struct snd_soc_pcm_runtime *rtd) { struct snd_pcm *pcm = rtd->pcm->streams[0].pcm; const char *mixer_ctl_name = "PCM_Dev"; const char *deviceNo = "NN"; const char *topo_playback = "Topology Playback"; const char *topo_capture = "Topology Capture"; char *mixer_str = NULL, *mixer_str1 = NULL; int ctl_len, ret; unsigned long fe_id = rtd->dai_link->be_id; struct snd_kcontrol_new topology_control[2] = { { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, .name = "?", .info = msm_pcm_fe_topology_info, .get = msm_pcm_fe_playback_topology_get, .put = msm_pcm_fe_playback_topology_put, .private_value = 0, }, { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, .name = "?", .info = msm_pcm_fe_topology_info, .get = msm_pcm_fe_capture_topology_get, .put = msm_pcm_fe_capture_topology_put, .private_value = 0, }, }; if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) { ctl_len = strlen(mixer_ctl_name) + 1 + strlen(deviceNo) + 1 + strlen(topo_playback) + 1; mixer_str = kzalloc(ctl_len, GFP_KERNEL); if (!mixer_str) { ret = -ENOMEM; goto err1; } snprintf(mixer_str, ctl_len, "%s %d %s", mixer_ctl_name, rtd->pcm->device, topo_playback); topology_control[0].name = mixer_str; topology_control[0].private_value = fe_id; } if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) { ctl_len = strlen(mixer_ctl_name) + 1 + strlen(deviceNo) + 1 + strlen(topo_capture) + 1; mixer_str1 = kzalloc(ctl_len, GFP_KERNEL); if (!mixer_str1) { ret = -ENOMEM; goto err; } snprintf(mixer_str1, ctl_len, "%s %d %s", mixer_ctl_name, rtd->pcm->device, topo_capture); topology_control[1].name = mixer_str1; topology_control[1].private_value = fe_id; } ret = snd_soc_add_platform_controls(rtd->platform, topology_control, ARRAY_SIZE(topology_control)); msm_pcm_fe_topology[fe_id][SNDRV_PCM_STREAM_PLAYBACK] = 0; msm_pcm_fe_topology[fe_id][SNDRV_PCM_STREAM_CAPTURE] = 0; kfree(mixer_str1); err: kfree(mixer_str); err1: return ret; } static int msm_pcm_playback_app_type_cfg_ctl_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { u64 fe_id = kcontrol->private_value; int app_type; int acdb_dev_id; int sample_rate = 48000; pr_debug("%s: fe_id- %llu\n", __func__, fe_id); if (fe_id >= MSM_FRONTEND_DAI_MAX) { pr_err("%s Received out of bounds fe_id %llu\n", __func__, fe_id); return -EINVAL; } app_type = ucontrol->value.integer.value[0]; acdb_dev_id = ucontrol->value.integer.value[1]; if (0 != ucontrol->value.integer.value[2]) sample_rate = ucontrol->value.integer.value[2]; pr_debug("%s: app_type- %d acdb_dev_id- %d sample_rate- %d session_type- %d\n", __func__, app_type, acdb_dev_id, sample_rate, SESSION_TYPE_RX); msm_pcm_routing_reg_stream_app_type_cfg(fe_id, app_type, acdb_dev_id, sample_rate, SESSION_TYPE_RX); return 0; } static int msm_pcm_playback_app_type_cfg_ctl_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { u64 fe_id = kcontrol->private_value; int ret = 0; int app_type; int acdb_dev_id; int sample_rate; pr_debug("%s: fe_id- %llu\n", __func__, fe_id); if (fe_id >= MSM_FRONTEND_DAI_MAX) { pr_err("%s Received out of bounds fe_id %llu\n", __func__, fe_id); ret = -EINVAL; goto done; } ret = msm_pcm_routing_get_stream_app_type_cfg(fe_id, SESSION_TYPE_RX, &app_type, &acdb_dev_id, &sample_rate); if (ret < 0) { pr_err("%s: msm_pcm_routing_get_stream_app_type_cfg failed returned %d\n", __func__, ret); goto done; } ucontrol->value.integer.value[0] = app_type; ucontrol->value.integer.value[1] = acdb_dev_id; ucontrol->value.integer.value[2] = sample_rate; pr_debug("%s: fedai_id %llu, session_type %d, app_type %d, acdb_dev_id %d, sample_rate %d\n", __func__, fe_id, SESSION_TYPE_RX, app_type, acdb_dev_id, sample_rate); done: return ret; } static int msm_pcm_capture_app_type_cfg_ctl_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { u64 fe_id = kcontrol->private_value; int app_type; int acdb_dev_id; int sample_rate = 48000; pr_debug("%s: fe_id- %llu\n", __func__, fe_id); if (fe_id >= MSM_FRONTEND_DAI_MAX) { pr_err("%s: Received out of bounds fe_id %llu\n", __func__, fe_id); return -EINVAL; } app_type = ucontrol->value.integer.value[0]; acdb_dev_id = ucontrol->value.integer.value[1]; if (0 != ucontrol->value.integer.value[2]) sample_rate = ucontrol->value.integer.value[2]; pr_debug("%s: app_type- %d acdb_dev_id- %d sample_rate- %d session_type- %d\n", __func__, app_type, acdb_dev_id, sample_rate, SESSION_TYPE_TX); msm_pcm_routing_reg_stream_app_type_cfg(fe_id, app_type, acdb_dev_id, sample_rate, SESSION_TYPE_TX); return 0; } static int msm_pcm_capture_app_type_cfg_ctl_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { u64 fe_id = kcontrol->private_value; int ret = 0; int app_type; int acdb_dev_id; int sample_rate; pr_debug("%s: fe_id- %llu\n", __func__, fe_id); if (fe_id >= MSM_FRONTEND_DAI_MAX) { pr_err("%s: Received out of bounds fe_id %llu\n", __func__, fe_id); ret = -EINVAL; goto done; } ret = msm_pcm_routing_get_stream_app_type_cfg(fe_id, SESSION_TYPE_TX, &app_type, &acdb_dev_id, &sample_rate); if (ret < 0) { pr_err("%s: msm_pcm_routing_get_stream_app_type_cfg failed returned %d\n", __func__, ret); goto done; } ucontrol->value.integer.value[0] = app_type; ucontrol->value.integer.value[1] = acdb_dev_id; ucontrol->value.integer.value[2] = sample_rate; pr_debug("%s: fedai_id %llu, session_type %d, app_type %d, acdb_dev_id %d, sample_rate %d\n", __func__, fe_id, SESSION_TYPE_TX, app_type, acdb_dev_id, sample_rate); done: return ret; } static int msm_pcm_add_app_type_controls(struct snd_soc_pcm_runtime *rtd) { struct snd_pcm *pcm = rtd->pcm; struct snd_pcm_usr *app_type_info; struct snd_kcontrol *kctl; const char *playback_mixer_ctl_name = "Audio Stream"; const char *capture_mixer_ctl_name = "Audio Stream Capture"; const char *deviceNo = "NN"; const char *suffix = "App Type Cfg"; int ctl_len, ret = 0; if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) { ctl_len = strlen(playback_mixer_ctl_name) + 1 + strlen(deviceNo) + 1 + strlen(suffix) + 1; pr_debug("%s: Playback app type cntrl add\n", __func__); ret = snd_pcm_add_usr_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, NULL, 1, ctl_len, rtd->dai_link->be_id, &app_type_info); if (ret < 0) { pr_err("%s: playback app type cntrl add failed: %d\n", __func__, ret); return ret; } kctl = app_type_info->kctl; snprintf(kctl->id.name, ctl_len, "%s %d %s", playback_mixer_ctl_name, rtd->pcm->device, suffix); kctl->put = msm_pcm_playback_app_type_cfg_ctl_put; kctl->get = msm_pcm_playback_app_type_cfg_ctl_get; } if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) { ctl_len = strlen(capture_mixer_ctl_name) + 1 + strlen(deviceNo) + 1 + strlen(suffix) + 1; pr_debug("%s: Capture app type cntrl add\n", __func__); ret = snd_pcm_add_usr_ctls(pcm, SNDRV_PCM_STREAM_CAPTURE, NULL, 1, ctl_len, rtd->dai_link->be_id, &app_type_info); if (ret < 0) { pr_err("%s: capture app type cntrl add failed: %d\n", __func__, ret); return ret; } kctl = app_type_info->kctl; snprintf(kctl->id.name, ctl_len, "%s %d %s", capture_mixer_ctl_name, rtd->pcm->device, suffix); kctl->put = msm_pcm_capture_app_type_cfg_ctl_put; kctl->get = msm_pcm_capture_app_type_cfg_ctl_get; } return 0; } static int msm_pcm_add_controls(struct snd_soc_pcm_runtime *rtd) { int ret = 0; pr_debug("%s\n", __func__); ret = msm_pcm_add_chmap_controls(rtd); if (ret) pr_err("%s: pcm add controls failed:%d\n", __func__, ret); ret = msm_pcm_add_app_type_controls(rtd); if (ret) pr_err("%s: pcm add app type controls failed:%d\n", __func__, ret); ret = msm_pcm_add_fe_topology_control(rtd); if (ret) { pr_err("%s: Could not add pcm topology control %d\n", __func__, ret); } return ret; } static int msm_asoc_pcm_new(struct snd_soc_pcm_runtime *rtd) { struct snd_card *card = rtd->card->snd_card; int ret = 0; if (!card->dev->coherent_dma_mask) card->dev->coherent_dma_mask = DMA_BIT_MASK(32); ret = msm_pcm_add_controls(rtd); if (ret) { pr_err("%s, kctl add failed:%d\n", __func__, ret); return ret; } ret = msm_pcm_add_volume_control(rtd); if (ret) pr_err("%s: Could not add pcm Volume Control %d\n", __func__, ret); return ret; } static snd_pcm_sframes_t msm_pcm_delay_blk(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct snd_pcm_runtime *runtime = substream->runtime; struct msm_audio *prtd = runtime->private_data; struct audio_client *ac = prtd->audio_client; snd_pcm_sframes_t frames; int ret; ret = q6asm_get_path_delay(prtd->audio_client); if (ret) { pr_err("%s: get_path_delay failed, ret=%d\n", __func__, ret); return 0; } /* convert microseconds to frames */ frames = ac->path_delay / 1000 * runtime->rate / 1000; /* also convert the remainder from the initial division */ frames += ac->path_delay % 1000 * runtime->rate / 1000000; /* overcompensate for the loss of precision (empirical) */ frames += 2; return frames; } static struct snd_soc_platform_driver msm_soc_platform = { .ops = &msm_pcm_ops, .pcm_new = msm_asoc_pcm_new, .delay_blk = msm_pcm_delay_blk, }; static int msm_pcm_probe(struct platform_device *pdev) { int rc; int id; struct msm_plat_data *pdata; const char *latency_level; rc = of_property_read_u32(pdev->dev.of_node, "qcom,msm-pcm-dsp-id", &id); if (rc) { dev_err(&pdev->dev, "%s: qcom,msm-pcm-dsp-id missing in DT node\n", __func__); return rc; } pdata = kzalloc(sizeof(struct msm_plat_data), GFP_KERNEL); if (!pdata) { dev_err(&pdev->dev, "Failed to allocate memory for platform data\n"); return -ENOMEM; } if (of_property_read_bool(pdev->dev.of_node, "qcom,msm-pcm-low-latency")) { pdata->perf_mode = LOW_LATENCY_PCM_MODE; rc = of_property_read_string(pdev->dev.of_node, "qcom,latency-level", &latency_level); if (!rc) { if (!strcmp(latency_level, "ultra")) pdata->perf_mode = ULTRA_LOW_LATENCY_PCM_MODE; else if (!strcmp(latency_level, "ull-pp")) pdata->perf_mode = ULL_POST_PROCESSING_PCM_MODE; } } else pdata->perf_mode = LEGACY_PCM_MODE; dev_set_drvdata(&pdev->dev, pdata); dev_dbg(&pdev->dev, "%s: dev name %s\n", __func__, dev_name(&pdev->dev)); return snd_soc_register_platform(&pdev->dev, &msm_soc_platform); } static int msm_pcm_remove(struct platform_device *pdev) { struct msm_plat_data *pdata; pdata = dev_get_drvdata(&pdev->dev); kfree(pdata); snd_soc_unregister_platform(&pdev->dev); return 0; } static const struct of_device_id msm_pcm_dt_match[] = { {.compatible = "qcom,msm-pcm-dsp"}, {} }; MODULE_DEVICE_TABLE(of, msm_pcm_dt_match); static struct platform_driver msm_pcm_driver = { .driver = { .name = "msm-pcm-dsp", .owner = THIS_MODULE, .of_match_table = msm_pcm_dt_match, }, .probe = msm_pcm_probe, .remove = msm_pcm_remove, }; static int __init msm_soc_platform_init(void) { init_waitqueue_head(&the_locks.enable_wait); init_waitqueue_head(&the_locks.eos_wait); init_waitqueue_head(&the_locks.write_wait); init_waitqueue_head(&the_locks.read_wait); return platform_driver_register(&msm_pcm_driver); } module_init(msm_soc_platform_init); static void __exit msm_soc_platform_exit(void) { platform_driver_unregister(&msm_pcm_driver); } module_exit(msm_soc_platform_exit); MODULE_DESCRIPTION("PCM module platform driver"); MODULE_LICENSE("GPL v2");