266 lines
6.9 KiB
C
266 lines
6.9 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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// Copyright (c) 2021, Linaro Limited
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#include <linux/err.h>
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/device.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <sound/pcm_params.h>
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#include "q6dsp-lpass-ports.h"
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#include "audioreach.h"
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#include "q6apm.h"
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#define AUDIOREACH_BE_PCM_BASE 16
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struct q6apm_lpass_dai_data {
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struct q6apm_graph *graph[APM_PORT_MAX];
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bool is_port_started[APM_PORT_MAX];
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struct audioreach_module_config module_config[APM_PORT_MAX];
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};
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static int q6dma_set_channel_map(struct snd_soc_dai *dai,
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unsigned int tx_num, unsigned int *tx_ch_mask,
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unsigned int rx_num, unsigned int *rx_ch_mask)
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{
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struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);
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struct audioreach_module_config *cfg = &dai_data->module_config[dai->id];
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int ch_mask;
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switch (dai->id) {
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case WSA_CODEC_DMA_TX_0:
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case WSA_CODEC_DMA_TX_1:
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case WSA_CODEC_DMA_TX_2:
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case VA_CODEC_DMA_TX_0:
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case VA_CODEC_DMA_TX_1:
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case VA_CODEC_DMA_TX_2:
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case TX_CODEC_DMA_TX_0:
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case TX_CODEC_DMA_TX_1:
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case TX_CODEC_DMA_TX_2:
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case TX_CODEC_DMA_TX_3:
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case TX_CODEC_DMA_TX_4:
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case TX_CODEC_DMA_TX_5:
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if (!tx_ch_mask) {
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dev_err(dai->dev, "tx slot not found\n");
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return -EINVAL;
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}
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if (tx_num > AR_PCM_MAX_NUM_CHANNEL) {
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dev_err(dai->dev, "invalid tx num %d\n",
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tx_num);
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return -EINVAL;
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}
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ch_mask = *tx_ch_mask;
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break;
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case WSA_CODEC_DMA_RX_0:
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case WSA_CODEC_DMA_RX_1:
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case RX_CODEC_DMA_RX_0:
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case RX_CODEC_DMA_RX_1:
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case RX_CODEC_DMA_RX_2:
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case RX_CODEC_DMA_RX_3:
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case RX_CODEC_DMA_RX_4:
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case RX_CODEC_DMA_RX_5:
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case RX_CODEC_DMA_RX_6:
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case RX_CODEC_DMA_RX_7:
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/* rx */
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if (!rx_ch_mask) {
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dev_err(dai->dev, "rx slot not found\n");
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return -EINVAL;
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}
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if (rx_num > APM_PORT_MAX_AUDIO_CHAN_CNT) {
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dev_err(dai->dev, "invalid rx num %d\n",
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rx_num);
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return -EINVAL;
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}
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ch_mask = *rx_ch_mask;
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break;
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default:
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dev_err(dai->dev, "%s: invalid dai id 0x%x\n",
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__func__, dai->id);
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return -EINVAL;
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}
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cfg->active_channels_mask = ch_mask;
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return 0;
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}
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static int q6dma_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
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{
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struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);
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struct audioreach_module_config *cfg = &dai_data->module_config[dai->id];
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cfg->bit_width = params_width(params);
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cfg->sample_rate = params_rate(params);
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cfg->num_channels = params_channels(params);
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return 0;
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}
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static void q6apm_lpass_dai_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
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{
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struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);
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int rc;
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if (!dai_data->is_port_started[dai->id])
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return;
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rc = q6apm_graph_stop(dai_data->graph[dai->id]);
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if (rc < 0)
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dev_err(dai->dev, "fail to close APM port (%d)\n", rc);
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q6apm_graph_close(dai_data->graph[dai->id]);
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dai_data->is_port_started[dai->id] = false;
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}
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static int q6apm_lpass_dai_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
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{
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struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);
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struct audioreach_module_config *cfg = &dai_data->module_config[dai->id];
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struct q6apm_graph *graph;
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int graph_id = dai->id;
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int rc;
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if (dai_data->is_port_started[dai->id]) {
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q6apm_graph_stop(dai_data->graph[dai->id]);
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dai_data->is_port_started[dai->id] = false;
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}
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/**
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* It is recommend to load DSP with source graph first and then sink
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* graph, so sequence for playback and capture will be different
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*/
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
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graph = q6apm_graph_open(dai->dev, NULL, dai->dev, graph_id);
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if (IS_ERR(graph)) {
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dev_err(dai->dev, "Failed to open graph (%d)\n", graph_id);
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rc = PTR_ERR(graph);
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return rc;
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}
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dai_data->graph[graph_id] = graph;
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}
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cfg->direction = substream->stream;
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rc = q6apm_graph_media_format_pcm(dai_data->graph[dai->id], cfg);
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if (rc) {
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dev_err(dai->dev, "Failed to set media format %d\n", rc);
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return rc;
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}
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rc = q6apm_graph_prepare(dai_data->graph[dai->id]);
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if (rc) {
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dev_err(dai->dev, "Failed to prepare Graph %d\n", rc);
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return rc;
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}
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rc = q6apm_graph_start(dai_data->graph[dai->id]);
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if (rc < 0) {
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dev_err(dai->dev, "fail to start APM port %x\n", dai->id);
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return rc;
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}
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dai_data->is_port_started[dai->id] = true;
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return 0;
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}
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static int q6apm_lpass_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
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{
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struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);
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struct q6apm_graph *graph;
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int graph_id = dai->id;
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if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
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graph = q6apm_graph_open(dai->dev, NULL, dai->dev, graph_id);
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if (IS_ERR(graph)) {
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dev_err(dai->dev, "Failed to open graph (%d)\n", graph_id);
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return PTR_ERR(graph);
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}
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dai_data->graph[graph_id] = graph;
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}
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return 0;
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}
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static int q6i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
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{
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struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);
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struct audioreach_module_config *cfg = &dai_data->module_config[dai->id];
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cfg->fmt = fmt;
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return 0;
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}
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static const struct snd_soc_dai_ops q6dma_ops = {
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.prepare = q6apm_lpass_dai_prepare,
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.startup = q6apm_lpass_dai_startup,
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.shutdown = q6apm_lpass_dai_shutdown,
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.set_channel_map = q6dma_set_channel_map,
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.hw_params = q6dma_hw_params,
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};
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static const struct snd_soc_dai_ops q6i2s_ops = {
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.prepare = q6apm_lpass_dai_prepare,
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.startup = q6apm_lpass_dai_startup,
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.shutdown = q6apm_lpass_dai_shutdown,
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.set_channel_map = q6dma_set_channel_map,
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.hw_params = q6dma_hw_params,
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.set_fmt = q6i2s_set_fmt,
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};
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static const struct snd_soc_component_driver q6apm_lpass_dai_component = {
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.name = "q6apm-be-dai-component",
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.of_xlate_dai_name = q6dsp_audio_ports_of_xlate_dai_name,
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.be_pcm_base = AUDIOREACH_BE_PCM_BASE,
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.use_dai_pcm_id = true,
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};
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static int q6apm_lpass_dai_dev_probe(struct platform_device *pdev)
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{
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struct q6dsp_audio_port_dai_driver_config cfg;
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struct q6apm_lpass_dai_data *dai_data;
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struct snd_soc_dai_driver *dais;
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struct device *dev = &pdev->dev;
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int num_dais;
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dai_data = devm_kzalloc(dev, sizeof(*dai_data), GFP_KERNEL);
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if (!dai_data)
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return -ENOMEM;
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dev_set_drvdata(dev, dai_data);
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memset(&cfg, 0, sizeof(cfg));
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cfg.q6i2s_ops = &q6i2s_ops;
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cfg.q6dma_ops = &q6dma_ops;
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dais = q6dsp_audio_ports_set_config(dev, &cfg, &num_dais);
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return devm_snd_soc_register_component(dev, &q6apm_lpass_dai_component, dais, num_dais);
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}
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#ifdef CONFIG_OF
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static const struct of_device_id q6apm_lpass_dai_device_id[] = {
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{ .compatible = "qcom,q6apm-lpass-dais" },
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{},
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};
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MODULE_DEVICE_TABLE(of, q6apm_lpass_dai_device_id);
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#endif
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static struct platform_driver q6apm_lpass_dai_platform_driver = {
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.driver = {
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.name = "q6apm-lpass-dais",
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.of_match_table = of_match_ptr(q6apm_lpass_dai_device_id),
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},
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.probe = q6apm_lpass_dai_dev_probe,
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};
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module_platform_driver(q6apm_lpass_dai_platform_driver);
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MODULE_DESCRIPTION("AUDIOREACH APM LPASS dai driver");
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MODULE_LICENSE("GPL");
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