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// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
//
// This file is provided under a dual BSD/GPLv2 license. When using or
// redistributing this file, you may do so under either license.
//
// Copyright(c) 2023 Advanced Micro Devices, Inc.
//
// Authors: Syed Saba kareem <syed.sabakareem@amd.com>
/*
* Hardware interface for ACP7.0 block
*/
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/err.h>
#include <linux/io.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dai.h>
#include <linux/dma-mapping.h>
#include <linux/pm_runtime.h>
#include <linux/pci.h>
#include "amd.h"
#include "acp-mach.h"
#include <asm/amd_node.h>
#define DRV_NAME "acp_asoc_acp70"
#define CLK7_CLK0_DFS_CNTL_N1 0X0006C1A4
#define CLK0_DIVIDER 0X19
static struct snd_soc_dai_driver acp70_dai[] = {
{
.name = "acp-i2s-sp",
.id = I2S_SP_INSTANCE,
.playback = {
.stream_name = "I2S SP Playback",
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
.channels_min = 2,
.channels_max = 32,
.rate_min = 8000,
.rate_max = 192000,
},
.capture = {
.stream_name = "I2S SP Capture",
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
.channels_min = 2,
.channels_max = 32,
.rate_min = 8000,
.rate_max = 192000,
},
.ops = &asoc_acp_cpu_dai_ops,
},
{
.name = "acp-i2s-bt",
.id = I2S_BT_INSTANCE,
.playback = {
.stream_name = "I2S BT Playback",
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
.channels_min = 2,
.channels_max = 32,
.rate_min = 8000,
.rate_max = 192000,
},
.capture = {
.stream_name = "I2S BT Capture",
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
.channels_min = 2,
.channels_max = 32,
.rate_min = 8000,
.rate_max = 192000,
},
.ops = &asoc_acp_cpu_dai_ops,
},
{
.name = "acp-i2s-hs",
.id = I2S_HS_INSTANCE,
.playback = {
.stream_name = "I2S HS Playback",
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
.channels_min = 2,
.channels_max = 32,
.rate_min = 8000,
.rate_max = 192000,
},
.capture = {
.stream_name = "I2S HS Capture",
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
.channels_min = 2,
.channels_max = 32,
.rate_min = 8000,
.rate_max = 192000,
},
.ops = &asoc_acp_cpu_dai_ops,
},
{
.name = "acp-pdm-dmic",
.id = DMIC_INSTANCE,
.capture = {
.rates = SNDRV_PCM_RATE_8000_48000,
.formats = SNDRV_PCM_FMTBIT_S32_LE,
.channels_min = 2,
.channels_max = 2,
.rate_min = 8000,
.rate_max = 48000,
},
.ops = &acp_dmic_dai_ops,
},
};
static int acp_acp70_audio_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct acp_chip_info *chip;
int ret;
chip = dev_get_platdata(&pdev->dev);
if (!chip || !chip->base) {
dev_err(&pdev->dev, "ACP chip data is NULL\n");
return -ENODEV;
}
switch (chip->acp_rev) {
case ACP70_PCI_ID:
case ACP71_PCI_ID:
break;
default:
dev_err(&pdev->dev, "Un-supported ACP Revision %d\n", chip->acp_rev);
return -ENODEV;
}
chip->dev = dev;
chip->dai_driver = acp70_dai;
chip->num_dai = ARRAY_SIZE(acp70_dai);
/* Set clk7 DFS clock divider register value to get mclk as 196.608MHz*/
ret = amd_smn_write(0, CLK7_CLK0_DFS_CNTL_N1, CLK0_DIVIDER);
if (ret) {
dev_err(&pdev->dev, "Failed to set I2S master clock as 196.608MHz\n");
return ret;
}
ret = acp_hw_en_interrupts(chip);
if (ret) {
dev_err(dev, "ACP en-interrupts failed\n");
return ret;
}
acp_platform_register(dev);
pm_runtime_set_autosuspend_delay(&pdev->dev, ACP_SUSPEND_DELAY_MS);
pm_runtime_use_autosuspend(&pdev->dev);
pm_runtime_mark_last_busy(&pdev->dev);
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
return 0;
}
static void acp_acp70_audio_remove(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct acp_chip_info *chip = dev_get_platdata(dev);
int ret;
ret = acp_hw_dis_interrupts(chip);
if (ret)
dev_err(dev, "ACP dis-interrupts failed\n");
acp_platform_unregister(dev);
pm_runtime_disable(&pdev->dev);
}
static int acp70_pcm_resume(struct device *dev)
{
struct acp_chip_info *chip = dev_get_platdata(dev);
struct acp_stream *stream;
struct snd_pcm_substream *substream;
snd_pcm_uframes_t buf_in_frames;
u64 buf_size;
spin_lock(&chip->acp_lock);
list_for_each_entry(stream, &chip->stream_list, list) {
substream = stream->substream;
if (substream && substream->runtime) {
buf_in_frames = (substream->runtime->buffer_size);
buf_size = frames_to_bytes(substream->runtime, buf_in_frames);
config_pte_for_stream(chip, stream);
config_acp_dma(chip, stream, buf_size);
if (stream->dai_id)
restore_acp_i2s_params(substream, chip, stream);
else
restore_acp_pdm_params(substream, chip);
}
}
spin_unlock(&chip->acp_lock);
return 0;
}
static const struct dev_pm_ops acp70_dma_pm_ops = {
SYSTEM_SLEEP_PM_OPS(NULL, acp70_pcm_resume)
};
static struct platform_driver acp70_driver = {
.probe = acp_acp70_audio_probe,
.remove = acp_acp70_audio_remove,
.driver = {
.name = "acp_asoc_acp70",
.pm = pm_ptr(&acp70_dma_pm_ops),
},
};
module_platform_driver(acp70_driver);
MODULE_DESCRIPTION("AMD ACP ACP70 Driver");
MODULE_IMPORT_NS("SND_SOC_ACP_COMMON");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_ALIAS("platform:" DRV_NAME);
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