| /* |
| * Intel SST Haswell/Broadwell PCM Support |
| * |
| * Copyright (C) 2013, Intel Corporation. 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 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 <linux/module.h> |
| #include <linux/dma-mapping.h> |
| #include <linux/slab.h> |
| #include <linux/module.h> |
| #include <linux/delay.h> |
| #include <asm/page.h> |
| #include <asm/pgtable.h> |
| #include <sound/core.h> |
| #include <sound/pcm.h> |
| #include <sound/pcm_params.h> |
| #include <sound/dmaengine_pcm.h> |
| #include <sound/soc.h> |
| #include <sound/tlv.h> |
| #include <sound/compress_driver.h> |
| |
| #include "sst-haswell-ipc.h" |
| #include "sst-dsp-priv.h" |
| #include "sst-dsp.h" |
| |
| #define HSW_PCM_COUNT 6 |
| #define HSW_VOLUME_MAX 0x7FFFFFFF /* 0dB */ |
| |
| /* simple volume table */ |
| static const u32 volume_map[] = { |
| HSW_VOLUME_MAX >> 30, |
| HSW_VOLUME_MAX >> 29, |
| HSW_VOLUME_MAX >> 28, |
| HSW_VOLUME_MAX >> 27, |
| HSW_VOLUME_MAX >> 26, |
| HSW_VOLUME_MAX >> 25, |
| HSW_VOLUME_MAX >> 24, |
| HSW_VOLUME_MAX >> 23, |
| HSW_VOLUME_MAX >> 22, |
| HSW_VOLUME_MAX >> 21, |
| HSW_VOLUME_MAX >> 20, |
| HSW_VOLUME_MAX >> 19, |
| HSW_VOLUME_MAX >> 18, |
| HSW_VOLUME_MAX >> 17, |
| HSW_VOLUME_MAX >> 16, |
| HSW_VOLUME_MAX >> 15, |
| HSW_VOLUME_MAX >> 14, |
| HSW_VOLUME_MAX >> 13, |
| HSW_VOLUME_MAX >> 12, |
| HSW_VOLUME_MAX >> 11, |
| HSW_VOLUME_MAX >> 10, |
| HSW_VOLUME_MAX >> 9, |
| HSW_VOLUME_MAX >> 8, |
| HSW_VOLUME_MAX >> 7, |
| HSW_VOLUME_MAX >> 6, |
| HSW_VOLUME_MAX >> 5, |
| HSW_VOLUME_MAX >> 4, |
| HSW_VOLUME_MAX >> 3, |
| HSW_VOLUME_MAX >> 2, |
| HSW_VOLUME_MAX >> 1, |
| HSW_VOLUME_MAX >> 0, |
| }; |
| |
| #define HSW_PCM_PERIODS_MAX 64 |
| #define HSW_PCM_PERIODS_MIN 2 |
| |
| static const struct snd_pcm_hardware hsw_pcm_hardware = { |
| .info = SNDRV_PCM_INFO_MMAP | |
| SNDRV_PCM_INFO_MMAP_VALID | |
| SNDRV_PCM_INFO_INTERLEAVED | |
| SNDRV_PCM_INFO_PAUSE | |
| SNDRV_PCM_INFO_RESUME | |
| SNDRV_PCM_INFO_NO_PERIOD_WAKEUP, |
| .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FORMAT_S24_LE | |
| SNDRV_PCM_FMTBIT_S32_LE, |
| .period_bytes_min = PAGE_SIZE, |
| .period_bytes_max = (HSW_PCM_PERIODS_MAX / HSW_PCM_PERIODS_MIN) * PAGE_SIZE, |
| .periods_min = HSW_PCM_PERIODS_MIN, |
| .periods_max = HSW_PCM_PERIODS_MAX, |
| .buffer_bytes_max = HSW_PCM_PERIODS_MAX * PAGE_SIZE, |
| }; |
| |
| /* private data for each PCM DSP stream */ |
| struct hsw_pcm_data { |
| int dai_id; |
| struct sst_hsw_stream *stream; |
| u32 volume[2]; |
| struct snd_pcm_substream *substream; |
| struct snd_compr_stream *cstream; |
| unsigned int wpos; |
| struct mutex mutex; |
| bool allocated; |
| }; |
| |
| /* private data for the driver */ |
| struct hsw_priv_data { |
| /* runtime DSP */ |
| struct sst_hsw *hsw; |
| |
| /* page tables */ |
| struct snd_dma_buffer dmab[HSW_PCM_COUNT][2]; |
| |
| /* DAI data */ |
| struct hsw_pcm_data pcm[HSW_PCM_COUNT]; |
| }; |
| |
| static u32 hsw_notify_pointer(struct sst_hsw_stream *stream, void *data); |
| |
| static inline u32 hsw_mixer_to_ipc(unsigned int value) |
| { |
| if (value >= ARRAY_SIZE(volume_map)) |
| return volume_map[0]; |
| else |
| return volume_map[value]; |
| } |
| |
| static inline unsigned int hsw_ipc_to_mixer(u32 value) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(volume_map); i++) { |
| if (volume_map[i] >= value) |
| return i; |
| } |
| |
| return i - 1; |
| } |
| |
| static int hsw_stream_volume_put(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct snd_soc_platform *platform = snd_kcontrol_chip(kcontrol); |
| struct soc_mixer_control *mc = |
| (struct soc_mixer_control *)kcontrol->private_value; |
| struct hsw_priv_data *pdata = |
| snd_soc_platform_get_drvdata(platform); |
| struct hsw_pcm_data *pcm_data = &pdata->pcm[mc->reg]; |
| struct sst_hsw *hsw = pdata->hsw; |
| u32 volume; |
| |
| mutex_lock(&pcm_data->mutex); |
| |
| if (!pcm_data->stream) { |
| pcm_data->volume[0] = |
| hsw_mixer_to_ipc(ucontrol->value.integer.value[0]); |
| pcm_data->volume[1] = |
| hsw_mixer_to_ipc(ucontrol->value.integer.value[1]); |
| mutex_unlock(&pcm_data->mutex); |
| return 0; |
| } |
| |
| if (ucontrol->value.integer.value[0] == |
| ucontrol->value.integer.value[1]) { |
| volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]); |
| sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0, 2, volume); |
| } else { |
| volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]); |
| sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0, 0, volume); |
| volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[1]); |
| sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0, 1, volume); |
| } |
| |
| mutex_unlock(&pcm_data->mutex); |
| return 0; |
| } |
| |
| static int hsw_stream_volume_get(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct snd_soc_platform *platform = snd_kcontrol_chip(kcontrol); |
| struct soc_mixer_control *mc = |
| (struct soc_mixer_control *)kcontrol->private_value; |
| struct hsw_priv_data *pdata = |
| snd_soc_platform_get_drvdata(platform); |
| struct hsw_pcm_data *pcm_data = &pdata->pcm[mc->reg]; |
| struct sst_hsw *hsw = pdata->hsw; |
| u32 volume; |
| |
| mutex_lock(&pcm_data->mutex); |
| |
| if (!pcm_data->stream) { |
| ucontrol->value.integer.value[0] = |
| hsw_ipc_to_mixer(pcm_data->volume[0]); |
| ucontrol->value.integer.value[1] = |
| hsw_ipc_to_mixer(pcm_data->volume[1]); |
| mutex_unlock(&pcm_data->mutex); |
| return 0; |
| } |
| |
| sst_hsw_stream_get_volume(hsw, pcm_data->stream, 0, 0, &volume); |
| ucontrol->value.integer.value[0] = hsw_ipc_to_mixer(volume); |
| sst_hsw_stream_get_volume(hsw, pcm_data->stream, 0, 1, &volume); |
| ucontrol->value.integer.value[1] = hsw_ipc_to_mixer(volume); |
| mutex_unlock(&pcm_data->mutex); |
| |
| return 0; |
| } |
| |
| static int hsw_volume_put(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct snd_soc_platform *platform = snd_kcontrol_chip(kcontrol); |
| struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(platform); |
| struct sst_hsw *hsw = pdata->hsw; |
| u32 volume; |
| |
| if (ucontrol->value.integer.value[0] == |
| ucontrol->value.integer.value[1]) { |
| |
| volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]); |
| sst_hsw_mixer_set_volume(hsw, 0, 2, volume); |
| |
| } else { |
| volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]); |
| sst_hsw_mixer_set_volume(hsw, 0, 0, volume); |
| |
| volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[1]); |
| sst_hsw_mixer_set_volume(hsw, 0, 1, volume); |
| } |
| |
| return 0; |
| } |
| |
| static int hsw_volume_get(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct snd_soc_platform *platform = snd_kcontrol_chip(kcontrol); |
| struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(platform); |
| struct sst_hsw *hsw = pdata->hsw; |
| unsigned int volume = 0; |
| |
| sst_hsw_mixer_get_volume(hsw, 0, 0, &volume); |
| ucontrol->value.integer.value[0] = hsw_ipc_to_mixer(volume); |
| |
| sst_hsw_mixer_get_volume(hsw, 0, 1, &volume); |
| ucontrol->value.integer.value[1] = hsw_ipc_to_mixer(volume); |
| |
| return 0; |
| } |
| |
| /* TLV used by both global and stream volumes */ |
| static const DECLARE_TLV_DB_SCALE(hsw_vol_tlv, -9000, 300, 1); |
| |
| /* System Pin has no volume control */ |
| static const struct snd_kcontrol_new hsw_volume_controls[] = { |
| /* Global DSP volume */ |
| SOC_DOUBLE_EXT_TLV("Master Playback Volume", 0, 0, 8, |
| ARRAY_SIZE(volume_map) -1, 0, |
| hsw_volume_get, hsw_volume_put, hsw_vol_tlv), |
| /* Offload 0 volume */ |
| SOC_DOUBLE_EXT_TLV("Media0 Playback Volume", 1, 0, 8, |
| ARRAY_SIZE(volume_map), 0, |
| hsw_stream_volume_get, hsw_stream_volume_put, hsw_vol_tlv), |
| /* Offload 1 volume */ |
| SOC_DOUBLE_EXT_TLV("Media1 Playback Volume", 2, 0, 8, |
| ARRAY_SIZE(volume_map), 0, |
| hsw_stream_volume_get, hsw_stream_volume_put, hsw_vol_tlv), |
| /* Loopback volume */ |
| SOC_DOUBLE_EXT_TLV("Loopback Capture Volume", 3, 0, 8, |
| ARRAY_SIZE(volume_map), 0, |
| hsw_stream_volume_get, hsw_stream_volume_put, hsw_vol_tlv), |
| /* Mic Capture volume */ |
| SOC_DOUBLE_EXT_TLV("Mic Capture Volume", 4, 0, 8, |
| ARRAY_SIZE(volume_map), 0, |
| hsw_stream_volume_get, hsw_stream_volume_put, hsw_vol_tlv), |
| }; |
| |
| /* Create DMA buffer page table for DSP */ |
| static int create_adsp_page_table(struct snd_pcm_substream *substream, |
| struct hsw_priv_data *pdata, struct snd_soc_pcm_runtime *rtd, |
| unsigned char *dma_area, size_t size, int pcm) |
| { |
| struct snd_dma_buffer *dmab = snd_pcm_get_dma_buf(substream); |
| int i, pages, stream = substream->stream; |
| |
| pages = snd_sgbuf_aligned_pages(size); |
| |
| dev_dbg(rtd->dev, "generating page table for %p size 0x%zu pages %d\n", |
| dma_area, size, pages); |
| |
| for (i = 0; i < pages; i++) { |
| u32 idx = (((i << 2) + i)) >> 1; |
| u32 pfn = snd_sgbuf_get_addr(dmab, i * PAGE_SIZE) >> PAGE_SHIFT; |
| u32 *pg_table; |
| |
| dev_dbg(rtd->dev, "pfn i %i idx %d pfn %x\n", i, idx, pfn); |
| |
| pg_table = (u32 *)(pdata->dmab[pcm][stream].area + idx); |
| |
| if (i & 1) |
| *pg_table |= (pfn << 4); |
| else |
| *pg_table |= pfn; |
| } |
| |
| return 0; |
| } |
| |
| /* this may get called several times by oss emulation */ |
| static int hsw_pcm_hw_params(struct snd_pcm_substream *substream, |
| struct snd_pcm_hw_params *params) |
| { |
| struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| struct snd_pcm_runtime *runtime = substream->runtime; |
| struct hsw_priv_data *pdata = |
| snd_soc_platform_get_drvdata(rtd->platform); |
| struct hsw_pcm_data *pcm_data = snd_soc_pcm_get_drvdata(rtd); |
| struct sst_hsw *hsw = pdata->hsw; |
| struct sst_module *module_data; |
| struct sst_dsp *dsp; |
| struct snd_dma_buffer *dmab; |
| enum sst_hsw_stream_type stream_type; |
| enum sst_hsw_stream_path_id path_id; |
| u32 rate, bits, map, pages, module_id; |
| u8 channels; |
| int ret; |
| |
| /* check if we are being called a subsequent time */ |
| if (pcm_data->allocated) { |
| ret = sst_hsw_stream_reset(hsw, pcm_data->stream); |
| if (ret < 0) |
| dev_dbg(rtd->dev, "error: reset stream failed %d\n", |
| ret); |
| |
| ret = sst_hsw_stream_free(hsw, pcm_data->stream); |
| if (ret < 0) { |
| dev_dbg(rtd->dev, "error: free stream failed %d\n", |
| ret); |
| return ret; |
| } |
| pcm_data->allocated = false; |
| |
| pcm_data->stream = sst_hsw_stream_new(hsw, rtd->cpu_dai->id, |
| hsw_notify_pointer, pcm_data); |
| if (pcm_data->stream == NULL) { |
| dev_err(rtd->dev, "error: failed to create stream\n"); |
| return -EINVAL; |
| } |
| } |
| |
| /* stream direction */ |
| if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| path_id = SST_HSW_STREAM_PATH_SSP0_OUT; |
| else |
| path_id = SST_HSW_STREAM_PATH_SSP0_IN; |
| |
| /* DSP stream type depends on DAI ID */ |
| switch (rtd->cpu_dai->id) { |
| case 0: |
| stream_type = SST_HSW_STREAM_TYPE_SYSTEM; |
| module_id = SST_HSW_MODULE_PCM_SYSTEM; |
| break; |
| case 1: |
| case 2: |
| stream_type = SST_HSW_STREAM_TYPE_RENDER; |
| module_id = SST_HSW_MODULE_PCM; |
| break; |
| case 3: |
| /* path ID needs to be OUT for loopback */ |
| stream_type = SST_HSW_STREAM_TYPE_LOOPBACK; |
| path_id = SST_HSW_STREAM_PATH_SSP0_OUT; |
| module_id = SST_HSW_MODULE_PCM_REFERENCE; |
| break; |
| case 4: |
| stream_type = SST_HSW_STREAM_TYPE_CAPTURE; |
| module_id = SST_HSW_MODULE_PCM_CAPTURE; |
| break; |
| default: |
| dev_err(rtd->dev, "error: invalid DAI ID %d\n", |
| rtd->cpu_dai->id); |
| return -EINVAL; |
| }; |
| |
| ret = sst_hsw_stream_format(hsw, pcm_data->stream, |
| path_id, stream_type, SST_HSW_STREAM_FORMAT_PCM_FORMAT); |
| if (ret < 0) { |
| dev_err(rtd->dev, "error: failed to set format %d\n", ret); |
| return ret; |
| } |
| |
| rate = params_rate(params); |
| ret = sst_hsw_stream_set_rate(hsw, pcm_data->stream, rate); |
| if (ret < 0) { |
| dev_err(rtd->dev, "error: could not set rate %d\n", rate); |
| return ret; |
| } |
| |
| switch (params_format(params)) { |
| case SNDRV_PCM_FORMAT_S16_LE: |
| bits = SST_HSW_DEPTH_16BIT; |
| sst_hsw_stream_set_valid(hsw, pcm_data->stream, 16); |
| break; |
| case SNDRV_PCM_FORMAT_S24_LE: |
| bits = SST_HSW_DEPTH_24BIT; |
| sst_hsw_stream_set_valid(hsw, pcm_data->stream, 32); |
| break; |
| default: |
| dev_err(rtd->dev, "error: invalid format %d\n", |
| params_format(params)); |
| return -EINVAL; |
| } |
| |
| ret = sst_hsw_stream_set_bits(hsw, pcm_data->stream, bits); |
| if (ret < 0) { |
| dev_err(rtd->dev, "error: could not set bits %d\n", bits); |
| return ret; |
| } |
| |
| /* we only support stereo atm */ |
| channels = params_channels(params); |
| if (channels != 2) { |
| dev_err(rtd->dev, "error: invalid channels %d\n", channels); |
| return -EINVAL; |
| } |
| |
| map = create_channel_map(SST_HSW_CHANNEL_CONFIG_STEREO); |
| sst_hsw_stream_set_map_config(hsw, pcm_data->stream, |
| map, SST_HSW_CHANNEL_CONFIG_STEREO); |
| |
| ret = sst_hsw_stream_set_channels(hsw, pcm_data->stream, channels); |
| if (ret < 0) { |
| dev_err(rtd->dev, "error: could not set channels %d\n", |
| channels); |
| return ret; |
| } |
| |
| ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); |
| if (ret < 0) { |
| dev_err(rtd->dev, "error: could not allocate %d bytes for PCM %d\n", |
| params_buffer_bytes(params), ret); |
| return ret; |
| } |
| |
| dmab = snd_pcm_get_dma_buf(substream); |
| |
| ret = create_adsp_page_table(substream, pdata, rtd, runtime->dma_area, |
| runtime->dma_bytes, rtd->cpu_dai->id); |
| if (ret < 0) |
| return ret; |
| |
| sst_hsw_stream_set_style(hsw, pcm_data->stream, |
| SST_HSW_INTERLEAVING_PER_CHANNEL); |
| |
| if (runtime->dma_bytes % PAGE_SIZE) |
| pages = (runtime->dma_bytes / PAGE_SIZE) + 1; |
| else |
| pages = runtime->dma_bytes / PAGE_SIZE; |
| |
| ret = sst_hsw_stream_buffer(hsw, pcm_data->stream, |
| pdata->dmab[rtd->cpu_dai->id][substream->stream].addr, |
| pages, runtime->dma_bytes, 0, |
| snd_sgbuf_get_addr(dmab, 0) >> PAGE_SHIFT); |
| if (ret < 0) { |
| dev_err(rtd->dev, "error: failed to set DMA buffer %d\n", ret); |
| return ret; |
| } |
| |
| dsp = sst_hsw_get_dsp(hsw); |
| |
| module_data = sst_module_get_from_id(dsp, module_id); |
| if (module_data == NULL) { |
| dev_err(rtd->dev, "error: failed to get module config\n"); |
| return -EINVAL; |
| } |
| |
| /* we use hardcoded memory offsets atm, will be updated for new FW */ |
| if (stream_type == SST_HSW_STREAM_TYPE_CAPTURE) { |
| sst_hsw_stream_set_module_info(hsw, pcm_data->stream, |
| SST_HSW_MODULE_PCM_CAPTURE, module_data->entry); |
| sst_hsw_stream_set_pmemory_info(hsw, pcm_data->stream, |
| 0x449400, 0x4000); |
| sst_hsw_stream_set_smemory_info(hsw, pcm_data->stream, |
| 0x400000, 0); |
| } else { /* stream_type == SST_HSW_STREAM_TYPE_SYSTEM */ |
| sst_hsw_stream_set_module_info(hsw, pcm_data->stream, |
| SST_HSW_MODULE_PCM_SYSTEM, module_data->entry); |
| |
| sst_hsw_stream_set_pmemory_info(hsw, pcm_data->stream, |
| module_data->offset, module_data->size); |
| sst_hsw_stream_set_pmemory_info(hsw, pcm_data->stream, |
| 0x44d400, 0x3800); |
| |
| sst_hsw_stream_set_smemory_info(hsw, pcm_data->stream, |
| module_data->offset, module_data->size); |
| sst_hsw_stream_set_smemory_info(hsw, pcm_data->stream, |
| 0x400000, 0); |
| } |
| |
| ret = sst_hsw_stream_commit(hsw, pcm_data->stream); |
| if (ret < 0) { |
| dev_err(rtd->dev, "error: failed to commit stream %d\n", ret); |
| return ret; |
| } |
| pcm_data->allocated = true; |
| |
| ret = sst_hsw_stream_pause(hsw, pcm_data->stream, 1); |
| if (ret < 0) |
| dev_err(rtd->dev, "error: failed to pause %d\n", ret); |
| |
| return 0; |
| } |
| |
| static int hsw_pcm_hw_free(struct snd_pcm_substream *substream) |
| { |
| snd_pcm_lib_free_pages(substream); |
| return 0; |
| } |
| |
| static int hsw_pcm_trigger(struct snd_pcm_substream *substream, int cmd) |
| { |
| struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| struct hsw_priv_data *pdata = |
| snd_soc_platform_get_drvdata(rtd->platform); |
| struct hsw_pcm_data *pcm_data = snd_soc_pcm_get_drvdata(rtd); |
| struct sst_hsw *hsw = pdata->hsw; |
| |
| switch (cmd) { |
| case SNDRV_PCM_TRIGGER_START: |
| case SNDRV_PCM_TRIGGER_RESUME: |
| case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
| sst_hsw_stream_resume(hsw, pcm_data->stream, 0); |
| break; |
| case SNDRV_PCM_TRIGGER_STOP: |
| case SNDRV_PCM_TRIGGER_SUSPEND: |
| case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
| sst_hsw_stream_pause(hsw, pcm_data->stream, 0); |
| break; |
| default: |
| break; |
| } |
| |
| return 0; |
| } |
| |
| static u32 hsw_notify_pointer(struct sst_hsw_stream *stream, void *data) |
| { |
| struct hsw_pcm_data *pcm_data = data; |
| struct snd_pcm_substream *substream = pcm_data->substream; |
| struct snd_pcm_runtime *runtime = substream->runtime; |
| struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| u32 pos; |
| |
| pos = frames_to_bytes(runtime, |
| (runtime->control->appl_ptr % runtime->buffer_size)); |
| |
| dev_dbg(rtd->dev, "PCM: App pointer %d bytes\n", pos); |
| |
| /* let alsa know we have play a period */ |
| snd_pcm_period_elapsed(substream); |
| return pos; |
| } |
| |
| static snd_pcm_uframes_t hsw_pcm_pointer(struct snd_pcm_substream *substream) |
| { |
| struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| struct snd_pcm_runtime *runtime = substream->runtime; |
| struct hsw_priv_data *pdata = |
| snd_soc_platform_get_drvdata(rtd->platform); |
| struct hsw_pcm_data *pcm_data = snd_soc_pcm_get_drvdata(rtd); |
| struct sst_hsw *hsw = pdata->hsw; |
| snd_pcm_uframes_t offset; |
| uint64_t ppos; |
| u32 position = sst_hsw_get_dsp_position(hsw, pcm_data->stream); |
| |
| offset = bytes_to_frames(runtime, position); |
| ppos = sst_hsw_get_dsp_presentation_position(hsw, pcm_data->stream); |
| |
| dev_dbg(rtd->dev, "PCM: DMA pointer %du bytes, pos %llu\n", |
| position, ppos); |
| return offset; |
| } |
| |
| static int hsw_pcm_open(struct snd_pcm_substream *substream) |
| { |
| struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| struct hsw_priv_data *pdata = |
| snd_soc_platform_get_drvdata(rtd->platform); |
| struct hsw_pcm_data *pcm_data; |
| struct sst_hsw *hsw = pdata->hsw; |
| |
| pcm_data = &pdata->pcm[rtd->cpu_dai->id]; |
| |
| mutex_lock(&pcm_data->mutex); |
| |
| snd_soc_pcm_set_drvdata(rtd, pcm_data); |
| pcm_data->substream = substream; |
| |
| snd_soc_set_runtime_hwparams(substream, &hsw_pcm_hardware); |
| |
| pcm_data->stream = sst_hsw_stream_new(hsw, rtd->cpu_dai->id, |
| hsw_notify_pointer, pcm_data); |
| if (pcm_data->stream == NULL) { |
| dev_err(rtd->dev, "error: failed to create stream\n"); |
| mutex_unlock(&pcm_data->mutex); |
| return -EINVAL; |
| } |
| |
| /* Set previous saved volume */ |
| sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0, |
| 0, pcm_data->volume[0]); |
| sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0, |
| 1, pcm_data->volume[1]); |
| |
| mutex_unlock(&pcm_data->mutex); |
| return 0; |
| } |
| |
| static int hsw_pcm_close(struct snd_pcm_substream *substream) |
| { |
| struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| struct hsw_priv_data *pdata = |
| snd_soc_platform_get_drvdata(rtd->platform); |
| struct hsw_pcm_data *pcm_data = snd_soc_pcm_get_drvdata(rtd); |
| struct sst_hsw *hsw = pdata->hsw; |
| int ret; |
| |
| mutex_lock(&pcm_data->mutex); |
| ret = sst_hsw_stream_reset(hsw, pcm_data->stream); |
| if (ret < 0) { |
| dev_dbg(rtd->dev, "error: reset stream failed %d\n", ret); |
| goto out; |
| } |
| |
| ret = sst_hsw_stream_free(hsw, pcm_data->stream); |
| if (ret < 0) { |
| dev_dbg(rtd->dev, "error: free stream failed %d\n", ret); |
| goto out; |
| } |
| pcm_data->allocated = 0; |
| pcm_data->stream = NULL; |
| |
| out: |
| mutex_unlock(&pcm_data->mutex); |
| return ret; |
| } |
| |
| static struct snd_pcm_ops hsw_pcm_ops = { |
| .open = hsw_pcm_open, |
| .close = hsw_pcm_close, |
| .ioctl = snd_pcm_lib_ioctl, |
| .hw_params = hsw_pcm_hw_params, |
| .hw_free = hsw_pcm_hw_free, |
| .trigger = hsw_pcm_trigger, |
| .pointer = hsw_pcm_pointer, |
| .page = snd_pcm_sgbuf_ops_page, |
| }; |
| |
| static void hsw_pcm_free(struct snd_pcm *pcm) |
| { |
| snd_pcm_lib_preallocate_free_for_all(pcm); |
| } |
| |
| static int hsw_pcm_new(struct snd_soc_pcm_runtime *rtd) |
| { |
| struct snd_pcm *pcm = rtd->pcm; |
| struct snd_soc_platform *platform = rtd->platform; |
| struct sst_pdata *pdata = dev_get_platdata(platform->dev); |
| struct device *dev = pdata->dma_dev; |
| int ret = 0; |
| |
| if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream || |
| pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) { |
| ret = snd_pcm_lib_preallocate_pages_for_all(pcm, |
| SNDRV_DMA_TYPE_DEV_SG, |
| dev, |
| hsw_pcm_hardware.buffer_bytes_max, |
| hsw_pcm_hardware.buffer_bytes_max); |
| if (ret) { |
| dev_err(rtd->dev, "dma buffer allocation failed %d\n", |
| ret); |
| return ret; |
| } |
| } |
| |
| return ret; |
| } |
| |
| #define HSW_FORMATS \ |
| (SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S16_LE |\ |
| SNDRV_PCM_FMTBIT_S32_LE) |
| |
| static struct snd_soc_dai_driver hsw_dais[] = { |
| { |
| .name = "System Pin", |
| .playback = { |
| .stream_name = "System Playback", |
| .channels_min = 2, |
| .channels_max = 2, |
| .rates = SNDRV_PCM_RATE_48000, |
| .formats = SNDRV_PCM_FMTBIT_S16_LE, |
| }, |
| }, |
| { |
| /* PCM */ |
| .name = "Offload0 Pin", |
| .playback = { |
| .stream_name = "Offload0 Playback", |
| .channels_min = 2, |
| .channels_max = 2, |
| .rates = SNDRV_PCM_RATE_8000_192000, |
| .formats = HSW_FORMATS, |
| }, |
| }, |
| { |
| /* PCM */ |
| .name = "Offload1 Pin", |
| .playback = { |
| .stream_name = "Offload1 Playback", |
| .channels_min = 2, |
| .channels_max = 2, |
| .rates = SNDRV_PCM_RATE_8000_192000, |
| .formats = HSW_FORMATS, |
| }, |
| }, |
| { |
| .name = "Loopback Pin", |
| .capture = { |
| .stream_name = "Loopback Capture", |
| .channels_min = 2, |
| .channels_max = 2, |
| .rates = SNDRV_PCM_RATE_8000_192000, |
| .formats = HSW_FORMATS, |
| }, |
| }, |
| { |
| .name = "Capture Pin", |
| .capture = { |
| .stream_name = "Analog Capture", |
| .channels_min = 2, |
| .channels_max = 2, |
| .rates = SNDRV_PCM_RATE_8000_192000, |
| .formats = HSW_FORMATS, |
| }, |
| }, |
| }; |
| |
| static const struct snd_soc_dapm_widget widgets[] = { |
| |
| /* Backend DAIs */ |
| SND_SOC_DAPM_AIF_IN("SSP0 CODEC IN", NULL, 0, SND_SOC_NOPM, 0, 0), |
| SND_SOC_DAPM_AIF_OUT("SSP0 CODEC OUT", NULL, 0, SND_SOC_NOPM, 0, 0), |
| SND_SOC_DAPM_AIF_IN("SSP1 BT IN", NULL, 0, SND_SOC_NOPM, 0, 0), |
| SND_SOC_DAPM_AIF_OUT("SSP1 BT OUT", NULL, 0, SND_SOC_NOPM, 0, 0), |
| |
| /* Global Playback Mixer */ |
| SND_SOC_DAPM_MIXER("Playback VMixer", SND_SOC_NOPM, 0, 0, NULL, 0), |
| }; |
| |
| static const struct snd_soc_dapm_route graph[] = { |
| |
| /* Playback Mixer */ |
| {"Playback VMixer", NULL, "System Playback"}, |
| {"Playback VMixer", NULL, "Offload0 Playback"}, |
| {"Playback VMixer", NULL, "Offload1 Playback"}, |
| |
| {"SSP0 CODEC OUT", NULL, "Playback VMixer"}, |
| |
| {"Analog Capture", NULL, "SSP0 CODEC IN"}, |
| }; |
| |
| static int hsw_pcm_probe(struct snd_soc_platform *platform) |
| { |
| struct sst_pdata *pdata = dev_get_platdata(platform->dev); |
| struct hsw_priv_data *priv_data; |
| struct device *dma_dev; |
| int i, ret = 0; |
| |
| if (!pdata) |
| return -ENODEV; |
| |
| dma_dev = pdata->dma_dev; |
| |
| priv_data = devm_kzalloc(platform->dev, sizeof(*priv_data), GFP_KERNEL); |
| priv_data->hsw = pdata->dsp; |
| snd_soc_platform_set_drvdata(platform, priv_data); |
| |
| /* allocate DSP buffer page tables */ |
| for (i = 0; i < ARRAY_SIZE(hsw_dais); i++) { |
| |
| mutex_init(&priv_data->pcm[i].mutex); |
| |
| /* playback */ |
| if (hsw_dais[i].playback.channels_min) { |
| ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, dma_dev, |
| PAGE_SIZE, &priv_data->dmab[i][0]); |
| if (ret < 0) |
| goto err; |
| } |
| |
| /* capture */ |
| if (hsw_dais[i].capture.channels_min) { |
| ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, dma_dev, |
| PAGE_SIZE, &priv_data->dmab[i][1]); |
| if (ret < 0) |
| goto err; |
| } |
| } |
| |
| return 0; |
| |
| err: |
| for (;i >= 0; i--) { |
| if (hsw_dais[i].playback.channels_min) |
| snd_dma_free_pages(&priv_data->dmab[i][0]); |
| if (hsw_dais[i].capture.channels_min) |
| snd_dma_free_pages(&priv_data->dmab[i][1]); |
| } |
| return ret; |
| } |
| |
| static int hsw_pcm_remove(struct snd_soc_platform *platform) |
| { |
| struct hsw_priv_data *priv_data = |
| snd_soc_platform_get_drvdata(platform); |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(hsw_dais); i++) { |
| if (hsw_dais[i].playback.channels_min) |
| snd_dma_free_pages(&priv_data->dmab[i][0]); |
| if (hsw_dais[i].capture.channels_min) |
| snd_dma_free_pages(&priv_data->dmab[i][1]); |
| } |
| |
| return 0; |
| } |
| |
| static struct snd_soc_platform_driver hsw_soc_platform = { |
| .probe = hsw_pcm_probe, |
| .remove = hsw_pcm_remove, |
| .ops = &hsw_pcm_ops, |
| .pcm_new = hsw_pcm_new, |
| .pcm_free = hsw_pcm_free, |
| .controls = hsw_volume_controls, |
| .num_controls = ARRAY_SIZE(hsw_volume_controls), |
| .dapm_widgets = widgets, |
| .num_dapm_widgets = ARRAY_SIZE(widgets), |
| .dapm_routes = graph, |
| .num_dapm_routes = ARRAY_SIZE(graph), |
| }; |
| |
| static const struct snd_soc_component_driver hsw_dai_component = { |
| .name = "haswell-dai", |
| }; |
| |
| static int hsw_pcm_dev_probe(struct platform_device *pdev) |
| { |
| struct sst_pdata *sst_pdata = dev_get_platdata(&pdev->dev); |
| int ret; |
| |
| ret = sst_hsw_dsp_init(&pdev->dev, sst_pdata); |
| if (ret < 0) |
| return -ENODEV; |
| |
| ret = snd_soc_register_platform(&pdev->dev, &hsw_soc_platform); |
| if (ret < 0) |
| goto err_plat; |
| |
| ret = snd_soc_register_component(&pdev->dev, &hsw_dai_component, |
| hsw_dais, ARRAY_SIZE(hsw_dais)); |
| if (ret < 0) |
| goto err_comp; |
| |
| return 0; |
| |
| err_comp: |
| snd_soc_unregister_platform(&pdev->dev); |
| err_plat: |
| sst_hsw_dsp_free(&pdev->dev, sst_pdata); |
| return 0; |
| } |
| |
| static int hsw_pcm_dev_remove(struct platform_device *pdev) |
| { |
| struct sst_pdata *sst_pdata = dev_get_platdata(&pdev->dev); |
| |
| snd_soc_unregister_platform(&pdev->dev); |
| snd_soc_unregister_component(&pdev->dev); |
| sst_hsw_dsp_free(&pdev->dev, sst_pdata); |
| |
| return 0; |
| } |
| |
| static struct platform_driver hsw_pcm_driver = { |
| .driver = { |
| .name = "haswell-pcm-audio", |
| .owner = THIS_MODULE, |
| }, |
| |
| .probe = hsw_pcm_dev_probe, |
| .remove = hsw_pcm_dev_remove, |
| }; |
| module_platform_driver(hsw_pcm_driver); |
| |
| MODULE_AUTHOR("Liam Girdwood, Xingchao Wang"); |
| MODULE_DESCRIPTION("Haswell/Lynxpoint + Broadwell/Wildcatpoint PCM"); |
| MODULE_LICENSE("GPL v2"); |
| MODULE_ALIAS("platform:haswell-pcm-audio"); |