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260 lines
6.8 KiB
260 lines
6.8 KiB
// 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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/** |
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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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