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ASoC: Intel: Add Haswell and Broadwell PCM platform driver
Add the Haswell and Broadwell PCM DSP platform driver. This driver uses the IPC driver for communication with the SST DSP. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Liam Girdwood
Mark Brown
parent
2298124358
commit
d37797705d
872
sound/soc/intel/sst-haswell-pcm.c
Normal file
872
sound/soc/intel/sst-haswell-pcm.c
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@ -0,0 +1,872 @@
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/*
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* Intel SST Haswell/Broadwell PCM Support
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*
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* Copyright (C) 2013, Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version
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* 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <linux/module.h>
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#include <linux/dma-mapping.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/delay.h>
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#include <asm/page.h>
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#include <asm/pgtable.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/dmaengine_pcm.h>
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#include <sound/soc.h>
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#include <sound/tlv.h>
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#include <sound/compress_driver.h>
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#include "sst-haswell-ipc.h"
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#include "sst-dsp-priv.h"
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#include "sst-dsp.h"
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#define HSW_PCM_COUNT 6
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#define HSW_VOLUME_MAX 0x7FFFFFFF /* 0dB */
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/* simple volume table */
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static const u32 volume_map[] = {
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HSW_VOLUME_MAX >> 30,
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HSW_VOLUME_MAX >> 29,
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HSW_VOLUME_MAX >> 28,
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HSW_VOLUME_MAX >> 27,
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HSW_VOLUME_MAX >> 26,
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HSW_VOLUME_MAX >> 25,
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HSW_VOLUME_MAX >> 24,
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HSW_VOLUME_MAX >> 23,
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HSW_VOLUME_MAX >> 22,
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HSW_VOLUME_MAX >> 21,
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HSW_VOLUME_MAX >> 20,
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HSW_VOLUME_MAX >> 19,
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HSW_VOLUME_MAX >> 18,
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HSW_VOLUME_MAX >> 17,
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HSW_VOLUME_MAX >> 16,
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HSW_VOLUME_MAX >> 15,
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HSW_VOLUME_MAX >> 14,
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HSW_VOLUME_MAX >> 13,
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HSW_VOLUME_MAX >> 12,
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HSW_VOLUME_MAX >> 11,
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HSW_VOLUME_MAX >> 10,
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HSW_VOLUME_MAX >> 9,
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HSW_VOLUME_MAX >> 8,
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HSW_VOLUME_MAX >> 7,
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HSW_VOLUME_MAX >> 6,
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HSW_VOLUME_MAX >> 5,
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HSW_VOLUME_MAX >> 4,
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HSW_VOLUME_MAX >> 3,
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HSW_VOLUME_MAX >> 2,
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HSW_VOLUME_MAX >> 1,
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HSW_VOLUME_MAX >> 0,
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};
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#define HSW_PCM_PERIODS_MAX 64
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#define HSW_PCM_PERIODS_MIN 2
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static const struct snd_pcm_hardware hsw_pcm_hardware = {
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.info = SNDRV_PCM_INFO_MMAP |
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SNDRV_PCM_INFO_MMAP_VALID |
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SNDRV_PCM_INFO_INTERLEAVED |
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SNDRV_PCM_INFO_PAUSE |
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SNDRV_PCM_INFO_RESUME |
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SNDRV_PCM_INFO_NO_PERIOD_WAKEUP,
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.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FORMAT_S24_LE |
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SNDRV_PCM_FMTBIT_S32_LE,
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.period_bytes_min = PAGE_SIZE,
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.period_bytes_max = (HSW_PCM_PERIODS_MAX / HSW_PCM_PERIODS_MIN) * PAGE_SIZE,
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.periods_min = HSW_PCM_PERIODS_MIN,
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.periods_max = HSW_PCM_PERIODS_MAX,
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.buffer_bytes_max = HSW_PCM_PERIODS_MAX * PAGE_SIZE,
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};
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/* private data for each PCM DSP stream */
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struct hsw_pcm_data {
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int dai_id;
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struct sst_hsw_stream *stream;
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u32 volume[2];
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struct snd_pcm_substream *substream;
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struct snd_compr_stream *cstream;
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unsigned int wpos;
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struct mutex mutex;
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};
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/* private data for the driver */
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struct hsw_priv_data {
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/* runtime DSP */
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struct sst_hsw *hsw;
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/* page tables */
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unsigned char *pcm_pg[HSW_PCM_COUNT][2];
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/* DAI data */
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struct hsw_pcm_data pcm[HSW_PCM_COUNT];
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};
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static inline u32 hsw_mixer_to_ipc(unsigned int value)
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{
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if (value >= ARRAY_SIZE(volume_map))
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return volume_map[0];
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else
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return volume_map[value];
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}
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static inline unsigned int hsw_ipc_to_mixer(u32 value)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(volume_map); i++) {
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if (volume_map[i] >= value)
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return i;
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}
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return i - 1;
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}
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static int hsw_stream_volume_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_platform *platform = snd_kcontrol_chip(kcontrol);
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struct soc_mixer_control *mc =
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(struct soc_mixer_control *)kcontrol->private_value;
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struct hsw_priv_data *pdata =
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snd_soc_platform_get_drvdata(platform);
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struct hsw_pcm_data *pcm_data = &pdata->pcm[mc->reg];
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struct sst_hsw *hsw = pdata->hsw;
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u32 volume;
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mutex_lock(&pcm_data->mutex);
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if (!pcm_data->stream) {
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pcm_data->volume[0] =
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hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
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pcm_data->volume[1] =
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hsw_mixer_to_ipc(ucontrol->value.integer.value[1]);
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mutex_unlock(&pcm_data->mutex);
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return 0;
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}
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if (ucontrol->value.integer.value[0] ==
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ucontrol->value.integer.value[1]) {
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volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
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sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0, 2, volume);
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} else {
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volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
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sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0, 0, volume);
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volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[1]);
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sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0, 1, volume);
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}
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mutex_unlock(&pcm_data->mutex);
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return 0;
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}
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static int hsw_stream_volume_get(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_platform *platform = snd_kcontrol_chip(kcontrol);
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struct soc_mixer_control *mc =
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(struct soc_mixer_control *)kcontrol->private_value;
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struct hsw_priv_data *pdata =
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snd_soc_platform_get_drvdata(platform);
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struct hsw_pcm_data *pcm_data = &pdata->pcm[mc->reg];
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struct sst_hsw *hsw = pdata->hsw;
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u32 volume;
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mutex_lock(&pcm_data->mutex);
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if (!pcm_data->stream) {
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ucontrol->value.integer.value[0] =
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hsw_ipc_to_mixer(pcm_data->volume[0]);
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ucontrol->value.integer.value[1] =
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hsw_ipc_to_mixer(pcm_data->volume[1]);
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mutex_unlock(&pcm_data->mutex);
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return 0;
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}
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sst_hsw_stream_get_volume(hsw, pcm_data->stream, 0, 0, &volume);
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ucontrol->value.integer.value[0] = hsw_ipc_to_mixer(volume);
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sst_hsw_stream_get_volume(hsw, pcm_data->stream, 0, 1, &volume);
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ucontrol->value.integer.value[1] = hsw_ipc_to_mixer(volume);
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mutex_unlock(&pcm_data->mutex);
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return 0;
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}
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static int hsw_volume_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_platform *platform = snd_kcontrol_chip(kcontrol);
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struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(platform);
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struct sst_hsw *hsw = pdata->hsw;
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u32 volume;
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if (ucontrol->value.integer.value[0] ==
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ucontrol->value.integer.value[1]) {
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volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
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sst_hsw_mixer_set_volume(hsw, 0, 2, volume);
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} else {
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volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
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sst_hsw_mixer_set_volume(hsw, 0, 0, volume);
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volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[1]);
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sst_hsw_mixer_set_volume(hsw, 0, 1, volume);
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}
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return 0;
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}
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static int hsw_volume_get(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_platform *platform = snd_kcontrol_chip(kcontrol);
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struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(platform);
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struct sst_hsw *hsw = pdata->hsw;
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unsigned int volume = 0;
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sst_hsw_mixer_get_volume(hsw, 0, 0, &volume);
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ucontrol->value.integer.value[0] = hsw_ipc_to_mixer(volume);
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sst_hsw_mixer_get_volume(hsw, 0, 1, &volume);
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ucontrol->value.integer.value[1] = hsw_ipc_to_mixer(volume);
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return 0;
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}
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/* TLV used by both global and stream volumes */
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static const DECLARE_TLV_DB_SCALE(hsw_vol_tlv, -9000, 300, 1);
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/* System Pin has no volume control */
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static const struct snd_kcontrol_new hsw_volume_controls[] = {
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/* Global DSP volume */
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SOC_DOUBLE_EXT_TLV("Master Playback Volume", 0, 0, 8,
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ARRAY_SIZE(volume_map) -1, 0,
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hsw_volume_get, hsw_volume_put, hsw_vol_tlv),
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/* Offload 0 volume */
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SOC_DOUBLE_EXT_TLV("Media0 Playback Volume", 1, 0, 8,
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ARRAY_SIZE(volume_map), 0,
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hsw_stream_volume_get, hsw_stream_volume_put, hsw_vol_tlv),
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/* Offload 1 volume */
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SOC_DOUBLE_EXT_TLV("Media1 Playback Volume", 2, 0, 8,
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ARRAY_SIZE(volume_map), 0,
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hsw_stream_volume_get, hsw_stream_volume_put, hsw_vol_tlv),
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/* Loopback volume */
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SOC_DOUBLE_EXT_TLV("Loopback Capture Volume", 3, 0, 8,
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ARRAY_SIZE(volume_map), 0,
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hsw_stream_volume_get, hsw_stream_volume_put, hsw_vol_tlv),
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/* Mic Capture volume */
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SOC_DOUBLE_EXT_TLV("Mic Capture Volume", 4, 0, 8,
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ARRAY_SIZE(volume_map), 0,
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hsw_stream_volume_get, hsw_stream_volume_put, hsw_vol_tlv),
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};
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/* Create DMA buffer page table for DSP */
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static int create_adsp_page_table(struct hsw_priv_data *pdata,
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struct snd_soc_pcm_runtime *rtd,
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unsigned char *dma_area, size_t size, int pcm, int stream)
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{
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int i, pages;
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if (size % PAGE_SIZE)
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pages = (size / PAGE_SIZE) + 1;
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else
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pages = size / PAGE_SIZE;
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dev_dbg(rtd->dev, "generating page table for %p size 0x%zu pages %d\n",
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dma_area, size, pages);
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for (i = 0; i < pages; i++) {
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u32 idx = (((i << 2) + i)) >> 1;
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u32 pfn = (virt_to_phys(dma_area + i * PAGE_SIZE)) >> PAGE_SHIFT;
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u32 *pg_table;
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dev_dbg(rtd->dev, "pfn i %i idx %d pfn %x\n", i, idx, pfn);
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pg_table = (u32*)(pdata->pcm_pg[pcm][stream] + idx);
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if (i & 1)
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*pg_table |= (pfn << 4);
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else
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*pg_table |= pfn;
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}
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return 0;
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}
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/* this may get called several times by oss emulation */
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static int hsw_pcm_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_pcm_runtime *runtime = substream->runtime;
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struct hsw_priv_data *pdata =
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snd_soc_platform_get_drvdata(rtd->platform);
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struct hsw_pcm_data *pcm_data = snd_soc_pcm_get_drvdata(rtd);
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struct sst_hsw *hsw = pdata->hsw;
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struct sst_module *module_data;
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struct sst_dsp *dsp;
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enum sst_hsw_stream_type stream_type;
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enum sst_hsw_stream_path_id path_id;
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u32 rate, bits, map, pages, module_id;
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u8 channels;
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int ret;
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/* stream direction */
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
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path_id = SST_HSW_STREAM_PATH_SSP0_OUT;
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else
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path_id = SST_HSW_STREAM_PATH_SSP0_IN;
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/* DSP stream type depends on DAI ID */
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switch (rtd->cpu_dai->id) {
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case 0:
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stream_type = SST_HSW_STREAM_TYPE_SYSTEM;
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module_id = SST_HSW_MODULE_PCM_SYSTEM;
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break;
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case 1:
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case 2:
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stream_type = SST_HSW_STREAM_TYPE_RENDER;
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module_id = SST_HSW_MODULE_PCM;
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break;
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case 3:
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/* path ID needs to be OUT for loopback */
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stream_type = SST_HSW_STREAM_TYPE_LOOPBACK;
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path_id = SST_HSW_STREAM_PATH_SSP0_OUT;
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module_id = SST_HSW_MODULE_PCM_REFERENCE;
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break;
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case 4:
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stream_type = SST_HSW_STREAM_TYPE_CAPTURE;
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module_id = SST_HSW_MODULE_PCM_CAPTURE;
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break;
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default:
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dev_err(rtd->dev, "error: invalid DAI ID %d\n",
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rtd->cpu_dai->id);
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return -EINVAL;
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};
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ret = sst_hsw_stream_format(hsw, pcm_data->stream,
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path_id, stream_type, SST_HSW_STREAM_FORMAT_PCM_FORMAT);
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if (ret < 0) {
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dev_err(rtd->dev, "error: failed to set format %d\n", ret);
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return ret;
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}
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rate = params_rate(params);
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ret = sst_hsw_stream_set_rate(hsw, pcm_data->stream, rate);
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if (ret < 0) {
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dev_err(rtd->dev, "error: could not set rate %d\n", rate);
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return ret;
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}
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switch (params_format(params)) {
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case SNDRV_PCM_FORMAT_S16_LE:
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bits = SST_HSW_DEPTH_16BIT;
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sst_hsw_stream_set_valid(hsw, pcm_data->stream, 16);
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break;
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case SNDRV_PCM_FORMAT_S24_LE:
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bits = SST_HSW_DEPTH_24BIT;
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sst_hsw_stream_set_valid(hsw, pcm_data->stream, 32);
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break;
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default:
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dev_err(rtd->dev, "error: invalid format %d\n",
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params_format(params));
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return -EINVAL;
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}
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ret = sst_hsw_stream_set_bits(hsw, pcm_data->stream, bits);
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if (ret < 0) {
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dev_err(rtd->dev, "error: could not set bits %d\n", bits);
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return ret;
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}
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/* we only support stereo atm */
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channels = params_channels(params);
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if (channels != 2) {
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dev_err(rtd->dev, "error: invalid channels %d\n", channels);
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return -EINVAL;
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}
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map = create_channel_map(SST_HSW_CHANNEL_CONFIG_STEREO);
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sst_hsw_stream_set_map_config(hsw, pcm_data->stream,
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map, SST_HSW_CHANNEL_CONFIG_STEREO);
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ret = sst_hsw_stream_set_channels(hsw, pcm_data->stream, channels);
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if (ret < 0) {
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dev_err(rtd->dev, "error: could not set channels %d\n",
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channels);
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return ret;
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}
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ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
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if (ret < 0) {
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dev_err(rtd->dev, "error: could not allocate %d bytes for PCM %d\n",
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params_buffer_bytes(params), ret);
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return ret;
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}
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ret = create_adsp_page_table(pdata, rtd, runtime->dma_area,
|
||||
runtime->dma_bytes, rtd->cpu_dai->id, substream->stream);
|
||||
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,
|
||||
virt_to_phys(pdata->pcm_pg[rtd->cpu_dai->id][substream->stream]),
|
||||
pages, runtime->dma_bytes, 0,
|
||||
(u32)(virt_to_phys(runtime->dma_area) >> 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;
|
||||
}
|
||||
|
||||
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;
|
||||
|
||||
offset = bytes_to_frames(runtime,
|
||||
sst_hsw_get_dsp_position(hsw, pcm_data->stream));
|
||||
|
||||
dev_dbg(rtd->dev, "PCM: DMA pointer %zu bytes\n",
|
||||
frames_to_bytes(runtime, (u32)offset));
|
||||
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->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,
|
||||
.mmap = snd_pcm_lib_default_mmap,
|
||||
};
|
||||
|
||||
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;
|
||||
int ret = 0;
|
||||
|
||||
ret = dma_coerce_mask_and_coherent(rtd->card->dev, DMA_BIT_MASK(32));
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
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,
|
||||
rtd->card->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;
|
||||
int i;
|
||||
|
||||
if (!pdata)
|
||||
return -ENODEV;
|
||||
|
||||
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) {
|
||||
priv_data->pcm_pg[i][0] = kzalloc(PAGE_SIZE, GFP_DMA);
|
||||
if (priv_data->pcm_pg[i][0] == NULL)
|
||||
goto err;
|
||||
}
|
||||
|
||||
/* capture */
|
||||
if (hsw_dais[i].capture.channels_min) {
|
||||
priv_data->pcm_pg[i][1] = kzalloc(PAGE_SIZE, GFP_DMA);
|
||||
if (priv_data->pcm_pg[i][1] == NULL)
|
||||
goto err;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
err:
|
||||
for (;i >= 0; i--) {
|
||||
if (hsw_dais[i].playback.channels_min)
|
||||
kfree(priv_data->pcm_pg[i][0]);
|
||||
if (hsw_dais[i].capture.channels_min)
|
||||
kfree(priv_data->pcm_pg[i][1]);
|
||||
}
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
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)
|
||||
kfree(priv_data->pcm_pg[i][0]);
|
||||
if (hsw_dais[i].capture.channels_min)
|
||||
kfree(priv_data->pcm_pg[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");
|
||||
Loading…
Reference in New Issue
Block a user