356 lines
10 KiB
C
356 lines
10 KiB
C
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/* sound/soc/samsung/vts/vts-plat.c
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*
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* ALSA SoC - Samsung VTS platfrom driver
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*
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* Copyright (c) 2016 Samsung Electronics Co. Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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//#define DEBUG
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#include <linux/clk.h>
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#include <linux/io.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/of_platform.h>
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#include <linux/of_reserved_mem.h>
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#include <linux/pm_runtime.h>
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#include <linux/firmware.h>
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#include <linux/dma-mapping.h>
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#include <linux/proc_fs.h>
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#include <linux/delay.h>
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#include <linux/regmap.h>
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#include <linux/wakelock.h>
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#include <asm-generic/delay.h>
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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#include <sound/pcm_params.h>
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#include <sound/tlv.h>
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#include <sound/samsung/mailbox.h>
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#include <sound/samsung/vts.h>
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#include <soc/samsung/exynos-pmu.h>
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#include "vts.h"
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static const struct snd_pcm_hardware vts_platform_hardware = {
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.info = SNDRV_PCM_INFO_INTERLEAVED
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| SNDRV_PCM_INFO_BLOCK_TRANSFER
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| SNDRV_PCM_INFO_MMAP
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| SNDRV_PCM_INFO_MMAP_VALID,
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.formats = SNDRV_PCM_FMTBIT_S16,
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.rates = SNDRV_PCM_RATE_16000,
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.channels_min = 1,
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.channels_max = 2,
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.buffer_bytes_max = BUFFER_BYTES_MAX,
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.period_bytes_min = PERIOD_BYTES_MIN,
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.period_bytes_max = PERIOD_BYTES_MAX,
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.periods_min = BUFFER_BYTES_MAX / PERIOD_BYTES_MAX,
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.periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN,
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};
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static int vts_platform_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_soc_platform *platform = rtd->platform;
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struct device *dev = platform->dev;
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struct vts_platform_data *data = dev_get_drvdata(dev);
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struct snd_pcm_runtime *runtime = substream->runtime;
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if (data->type == PLATFORM_VTS_TRIGGER_RECORD) {
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snd_pcm_set_runtime_buffer(substream, &data->vts_data->dmab);
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} else {
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snd_pcm_set_runtime_buffer(substream, &data->vts_data->dmab_rec);
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}
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dev_info(dev, "%s:%s:DmaAddr=%pad Total=%zu PrdSz=%u(%u) #Prds=%u dma_area=%p\n",
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__func__, snd_pcm_stream_str(substream), &runtime->dma_addr,
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runtime->dma_bytes, params_period_size(params),
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params_period_bytes(params), params_periods(params),
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runtime->dma_area);
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data->pointer = 0;
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return 0;
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}
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static int vts_platform_hw_free(struct snd_pcm_substream *substream)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_platform *platform = rtd->platform;
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struct device *dev = platform->dev;
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dev_dbg(dev, "%s\n", __func__);
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return 0;
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}
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static int vts_platform_prepare(struct snd_pcm_substream *substream)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_platform *platform = rtd->platform;
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struct device *dev = platform->dev;
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dev_info(dev, "%s\n", __func__);
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return 0;
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}
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static int vts_platform_trigger(struct snd_pcm_substream *substream, int cmd)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_platform *platform = rtd->platform;
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struct device *dev = platform->dev;
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struct vts_platform_data *data = dev_get_drvdata(dev);
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u32 values[3] = {0,0,0};
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int result = 0;
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dev_info(dev, "%s ++ CMD: %d\n", __func__, cmd);
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switch (cmd) {
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case SNDRV_PCM_TRIGGER_START:
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case SNDRV_PCM_TRIGGER_RESUME:
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case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
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if (data->type == PLATFORM_VTS_TRIGGER_RECORD) {
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dev_dbg(dev, "%s VTS_IRQ_AP_START_COPY\n", __func__);
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result = vts_start_ipc_transaction(dev, data->vts_data, VTS_IRQ_AP_START_COPY, &values, 1, 1);
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} else {
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dev_dbg(dev, "%s VTS_IRQ_AP_START_REC\n", __func__);
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result = vts_start_ipc_transaction(dev, data->vts_data, VTS_IRQ_AP_START_REC, &values, 1, 1);
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}
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break;
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case SNDRV_PCM_TRIGGER_STOP:
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case SNDRV_PCM_TRIGGER_SUSPEND:
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case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
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if (data->type == PLATFORM_VTS_TRIGGER_RECORD) {
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dev_dbg(dev, "%s VTS_IRQ_AP_STOP_COPY\n", __func__);
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result = vts_start_ipc_transaction(dev, data->vts_data, VTS_IRQ_AP_STOP_COPY, &values, 1, 1);
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} else {
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dev_dbg(dev, "%s VTS_IRQ_AP_STOP_REC\n", __func__);
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result = vts_start_ipc_transaction(dev, data->vts_data, VTS_IRQ_AP_STOP_REC, &values, 1, 1);
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}
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break;
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default:
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result = -EINVAL;
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break;
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}
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dev_info(dev, "%s -- CMD: %d\n", __func__, cmd);
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return result;
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}
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static snd_pcm_uframes_t vts_platform_pointer(struct snd_pcm_substream *substream)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_platform *platform = rtd->platform;
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struct device *dev = platform->dev;
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struct vts_platform_data *data = dev_get_drvdata(dev);
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struct snd_pcm_runtime *runtime = substream->runtime;
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dev_dbg(dev, "%s: pointer=%08x\n", __func__, data->pointer);
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return bytes_to_frames(runtime, data->pointer);
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}
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static int vts_platform_open(struct snd_pcm_substream *substream)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_platform *platform = rtd->platform;
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struct device *dev = platform->dev;
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struct vts_platform_data *data = dev_get_drvdata(dev);
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int result = 0;
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dev_info(dev, "%s\n", __func__);
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if (data->vts_data->voicecall_enabled) {
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dev_warn(dev, "%s VTS SRAM is Used for CP call\n",
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__func__);
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return -EBUSY;
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}
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pm_runtime_get_sync(dev);
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snd_soc_set_runtime_hwparams(substream, &vts_platform_hardware);
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if (data->type == PLATFORM_VTS_NORMAL_RECORD) {
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dev_info(dev, "%s open --\n", __func__);
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result = vts_set_dmicctrl(data->vts_data->pdev,
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VTS_MICCONF_FOR_RECORD, true);
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if (result < 0) {
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dev_err(dev, "%s: MIC control configuration failed\n", __func__);
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pm_runtime_put_sync(dev);
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}
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}
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return result;
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}
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static int vts_platform_close(struct snd_pcm_substream *substream)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_platform *platform = rtd->platform;
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struct device *dev = platform->dev;
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struct vts_platform_data *data = dev_get_drvdata(dev);
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int result = 0;
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dev_info(dev, "%s\n", __func__);
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if (data->vts_data->voicecall_enabled) {
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dev_warn(dev, "%s VTS SRAM is Used for CP call\n",
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__func__);
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return -EBUSY;
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}
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if (data->type == PLATFORM_VTS_NORMAL_RECORD) {
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dev_info(dev, "%s close --\n", __func__);
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result = vts_set_dmicctrl(data->vts_data->pdev,
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VTS_MICCONF_FOR_RECORD, false);
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if (result < 0)
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dev_warn(dev, "%s: MIC control configuration failed\n", __func__);
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}
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pm_runtime_put_sync(dev);
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return result;
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}
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static int vts_platform_mmap(struct snd_pcm_substream *substream,
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struct vm_area_struct *vma)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_platform *platform = rtd->platform;
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struct device *dev = platform->dev;
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struct snd_pcm_runtime *runtime = substream->runtime;
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dev_info(dev, "%s\n", __func__);
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return dma_mmap_writecombine(dev, vma,
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runtime->dma_area,
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runtime->dma_addr,
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runtime->dma_bytes);
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}
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static struct snd_pcm_ops vts_platform_ops = {
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.open = vts_platform_open,
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.close = vts_platform_close,
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.ioctl = snd_pcm_lib_ioctl,
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.hw_params = vts_platform_hw_params,
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.hw_free = vts_platform_hw_free,
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.prepare = vts_platform_prepare,
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.trigger = vts_platform_trigger,
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.pointer = vts_platform_pointer,
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.mmap = vts_platform_mmap,
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};
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static int vts_platform_new(struct snd_soc_pcm_runtime *runtime)
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{
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struct snd_soc_platform *platform = runtime->platform;
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struct device *dev = platform->dev;
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struct vts_platform_data *data = dev_get_drvdata(dev);
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struct snd_pcm_substream *substream = runtime->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
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dev_info(dev, "%s \n", __func__);
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data->substream = substream;
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dev_info(dev, "%s Update Soc Card from runtime!!\n", __func__);
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data->vts_data->card = runtime->card;
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return 0;
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}
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static void vts_platform_free(struct snd_pcm *pcm)
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{
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return;
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}
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static const struct snd_soc_platform_driver vts_dma = {
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.ops = &vts_platform_ops,
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.pcm_new = vts_platform_new,
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.pcm_free = vts_platform_free,
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};
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static int samsung_vts_dma_probe(struct platform_device *pdev)
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{
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struct device *dev = &pdev->dev;
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struct device_node *np = dev->of_node;
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struct device_node *np_vts;
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struct vts_platform_data *data;
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int result;
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const char *type;
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dev_info(dev, "%s \n", __func__);
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data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
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if (!data) {
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dev_err(dev, "Failed to allocate memory\n");
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return -ENOMEM;
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}
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platform_set_drvdata(pdev, data);
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np_vts = of_parse_phandle(np, "vts", 0);
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if (!np_vts) {
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dev_err(dev, "Failed to get vts device node\n");
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return -EPROBE_DEFER;
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}
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data->pdev_vts = of_find_device_by_node(np_vts);
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if (!data->pdev_vts) {
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dev_err(dev, "Failed to get vts platform device\n");
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return -EPROBE_DEFER;
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}
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data->vts_data = platform_get_drvdata(data->pdev_vts);
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result = of_property_read_u32_index(np, "id", 0, &data->id);
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if (result < 0) {
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dev_err(dev, "id property reading fail\n");
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return result;
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}
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result = of_property_read_string(np, "type", &type);
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if (result < 0) {
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dev_err(dev, "type property reading fail\n");
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return result;
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}
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if (!strncmp(type, "vts-record", sizeof("vts-record"))) {
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data->type = PLATFORM_VTS_NORMAL_RECORD;
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dev_info(dev, "%s - vts-record Probed \n", __func__);
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} else {
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data->type = PLATFORM_VTS_TRIGGER_RECORD;
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dev_info(dev, "%s - vts-trigger-record Probed \n", __func__);
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}
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vts_register_dma(data->vts_data->pdev, pdev, data->id);
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return snd_soc_register_platform(&pdev->dev, &vts_dma);
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}
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static int samsung_vts_dma_remove(struct platform_device *pdev)
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{
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snd_soc_unregister_platform(&pdev->dev);
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return 0;
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}
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static const struct of_device_id samsung_vts_dma_match[] = {
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{
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.compatible = "samsung,vts-dma",
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},
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{},
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};
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MODULE_DEVICE_TABLE(of, samsung_vts_dma_match);
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static struct platform_driver samsung_vts_dma_driver = {
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.probe = samsung_vts_dma_probe,
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.remove = samsung_vts_dma_remove,
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.driver = {
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.name = "samsung-vts-dma",
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.owner = THIS_MODULE,
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.of_match_table = of_match_ptr(samsung_vts_dma_match),
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},
|
||
|
|
};
|
||
|
|
|
||
|
|
module_platform_driver(samsung_vts_dma_driver);
|
||
|
|
|
||
|
|
/* Module information */
|
||
|
|
MODULE_AUTHOR("Palli Satish Kumar Reddy, <palli.satish@samsung.com>");
|
||
|
|
MODULE_DESCRIPTION("Samsung VTS DMA");
|
||
|
|
MODULE_ALIAS("platform:samsung-vts-dma");
|
||
|
|
MODULE_LICENSE("GPL");
|