/*
* AMD ALSA SoC PCM Driver for ACP 2.x
*
* Copyright 2014-2015 Advanced Micro Devices, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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/delay.h>
#include <linux/io.h>
#include <linux/sizes.h>
#include <linux/pm_runtime.h>
#include <sound/soc.h>
#include <drm/amd_asic_type.h>
#include "acp.h"
#define PLAYBACK_MIN_NUM_PERIODS 2
#define PLAYBACK_MAX_NUM_PERIODS 2
#define PLAYBACK_MAX_PERIOD_SIZE 16384
#define PLAYBACK_MIN_PERIOD_SIZE 1024
#define CAPTURE_MIN_NUM_PERIODS 2
#define CAPTURE_MAX_NUM_PERIODS 2
#define CAPTURE_MAX_PERIOD_SIZE 16384
#define CAPTURE_MIN_PERIOD_SIZE 1024
#define MAX_BUFFER (PLAYBACK_MAX_PERIOD_SIZE * PLAYBACK_MAX_NUM_PERIODS)
#define MIN_BUFFER MAX_BUFFER
#define ST_PLAYBACK_MAX_PERIOD_SIZE 8192
#define ST_CAPTURE_MAX_PERIOD_SIZE ST_PLAYBACK_MAX_PERIOD_SIZE
#define ST_MAX_BUFFER (ST_PLAYBACK_MAX_PERIOD_SIZE * PLAYBACK_MAX_NUM_PERIODS)
#define ST_MIN_BUFFER ST_MAX_BUFFER
#define DRV_NAME "acp_audio_dma"
static const struct snd_pcm_hardware acp_pcm_hardware_playback = {
.info = SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_BATCH |
SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE,
.channels_min = 1,
.channels_max = 8,
.rates = SNDRV_PCM_RATE_8000_96000,
.rate_min = 8000,
.rate_max = 96000,
.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,
};
static const struct snd_pcm_hardware acp_pcm_hardware_capture = {
.info = SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_BATCH |
SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE,
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_48000,
.rate_min = 8000,
.rate_max = 48000,
.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,
};
static const struct snd_pcm_hardware acp_st_pcm_hardware_playback = {
.info = SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_BATCH |
SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE,
.channels_min = 1,
.channels_max = 8,
.rates = SNDRV_PCM_RATE_8000_96000,
.rate_min = 8000,
.rate_max = 96000,
.buffer_bytes_max = ST_MAX_BUFFER,
.period_bytes_min = PLAYBACK_MIN_PERIOD_SIZE,
.period_bytes_max = ST_PLAYBACK_MAX_PERIOD_SIZE,
.periods_min = PLAYBACK_MIN_NUM_PERIODS,
.periods_max = PLAYBACK_MAX_NUM_PERIODS,
};
static const struct snd_pcm_hardware acp_st_pcm_hardware_capture = {
.info = SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP |