// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved.
*
* lpass-platform.c -- ALSA SoC platform driver for QTi LPASS
*/
#include <dt-bindings/sound/qcom,lpass.h>
#include <linux/dma-mapping.h>
#include <linux/export.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <sound/pcm_params.h>
#include <linux/regmap.h>
#include <sound/soc.h>
#include "lpass-lpaif-reg.h"
#include "lpass.h"
#define DRV_NAME "lpass-platform"
#define LPASS_PLATFORM_BUFFER_SIZE (24 * 2 * 1024)
#define LPASS_PLATFORM_PERIODS 2
#define LPASS_RXTX_CDC_DMA_LPM_BUFF_SIZE (8 * 1024)
#define LPASS_VA_CDC_DMA_LPM_BUFF_SIZE (12 * 1024)
#define LPASS_CDC_DMA_REGISTER_FIELDS_MAX 15
static const struct snd_pcm_hardware lpass_platform_pcm_hardware = {
.info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_RESUME,
.formats = SNDRV_PCM_FMTBIT_S16 |
SNDRV_PCM_FMTBIT_S24 |
SNDRV_PCM_FMTBIT_S32,
.rates = SNDRV_PCM_RATE_8000_192000,
.rate_min = 8000,
.rate_max = 192000,
.channels_min = 1,
.channels_max = 8,
.buffer_bytes_max = LPASS_PLATFORM_BUFFER_SIZE,
.period_bytes_max = LPASS_PLATFORM_BUFFER_SIZE /
LPASS_PLATFORM_PERIODS,
.period_bytes_min = LPASS_PLATFORM_BUFFER_SIZE /
LPASS_PLATFORM_PERIODS,
.periods_min = LPASS_PLATFORM_PERIODS,
.periods_max = LPASS_PLATFORM_PERIODS,
.fifo_size = 0,
};
static const struct snd_pcm_hardware lpass_platform_rxtx_hardware = {
.info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_RESUME,
.formats = SNDRV_PCM_FMTBIT_S16 |
SNDRV_PCM_FMTBIT_S24 |
SNDRV_PCM_FMTBIT_S32,
.rates = SNDRV_PCM_RATE_8000_192000,
.rate_min = 8000,
.rate_max = 192000,
.channels_min = 1,
.channels_max = 8,
.buffer_bytes_max = LPASS_RXTX_CDC_DMA_LPM_BUFF_SIZE,
.period_bytes_max = LPASS_RXTX_CDC_DMA_LPM_BUFF_SIZE /
LPASS_PLATFORM_PERIODS,
.period_bytes_min = LPASS_RXTX_CDC_DMA_LPM_BUFF_SIZE /
LPASS_PLATFORM_PERIODS,
.periods_min = LPASS_PLATFORM_PERIODS,
.periods_max = LPASS_PLATFORM_PERIODS,
.fifo_size = 0,
};
static const struct snd_pcm_hardware lpass_platform_va_hardware = {
.info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_RESUME,
.formats = SNDRV_PCM_FMTBIT_S16 |
SNDRV_PCM_FMTBIT_S24 |
SNDRV_PCM_FMTBIT_S32,
.rates 