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1// SPDX-License-Identifier: GPL-2.02// Copyright (c) 2021, Linaro Limited3 4#include <dt-bindings/sound/qcom,q6dsp-lpass-ports.h>5#include <linux/err.h>6#include <linux/init.h>7#include <linux/module.h>8#include <linux/device.h>9#include <linux/platform_device.h>10#include <linux/slab.h>11#include <sound/pcm.h>12#include <sound/soc.h>13#include <sound/pcm_params.h>14#include "q6dsp-lpass-ports.h"15#include "q6dsp-common.h"16#include "audioreach.h"17#include "q6apm.h"18 19#define AUDIOREACH_BE_PCM_BASE 1620 21struct q6apm_lpass_dai_data {22 struct q6apm_graph *graph[APM_PORT_MAX];23 bool is_port_started[APM_PORT_MAX];24 struct audioreach_module_config module_config[APM_PORT_MAX];25};26 27static int q6dma_set_channel_map(struct snd_soc_dai *dai,28 unsigned int tx_num,29 const unsigned int *tx_ch_mask,30 unsigned int rx_num,31 const unsigned int *rx_ch_mask)32{33 34 struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);35 struct audioreach_module_config *cfg = &dai_data->module_config[dai->id];36 int i;37 38 switch (dai->id) {39 case WSA_CODEC_DMA_TX_0:40 case WSA_CODEC_DMA_TX_1:41 case WSA_CODEC_DMA_TX_2:42 case VA_CODEC_DMA_TX_0:43 case VA_CODEC_DMA_TX_1:44 case VA_CODEC_DMA_TX_2:45 case TX_CODEC_DMA_TX_0:46 case TX_CODEC_DMA_TX_1:47 case TX_CODEC_DMA_TX_2:48 case TX_CODEC_DMA_TX_3:49 case TX_CODEC_DMA_TX_4:50 case TX_CODEC_DMA_TX_5:51 if (!tx_ch_mask) {52 dev_err(dai->dev, "tx slot not found\n");53 return -EINVAL;54 }55 56 if (tx_num > AR_PCM_MAX_NUM_CHANNEL) {57 dev_err(dai->dev, "invalid tx num %d\n",58 tx_num);59 return -EINVAL;60 }61 for (i = 0; i < tx_num; i++)62 cfg->channel_map[i] = tx_ch_mask[i];63 64 break;65 case WSA_CODEC_DMA_RX_0:66 case WSA_CODEC_DMA_RX_1:67 case RX_CODEC_DMA_RX_0:68 case RX_CODEC_DMA_RX_1:69 case RX_CODEC_DMA_RX_2:70 case RX_CODEC_DMA_RX_3:71 case RX_CODEC_DMA_RX_4:72 case RX_CODEC_DMA_RX_5:73 case RX_CODEC_DMA_RX_6:74 case RX_CODEC_DMA_RX_7:75 /* rx */76 if (!rx_ch_mask) {77 dev_err(dai->dev, "rx slot not found\n");78 return -EINVAL;79 }80 if (rx_num > APM_PORT_MAX_AUDIO_CHAN_CNT) {81 dev_err(dai->dev, "invalid rx num %d\n",82 rx_num);83 return -EINVAL;84 }85 for (i = 0; i < rx_num; i++)86 cfg->channel_map[i] = rx_ch_mask[i];87 88 break;89 default:90 dev_err(dai->dev, "%s: invalid dai id 0x%x\n",91 __func__, dai->id);92 return -EINVAL;93 }94 95 return 0;96}97 98static int q6hdmi_hw_params(struct snd_pcm_substream *substream,99 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)100{101 struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);102 struct audioreach_module_config *cfg = &dai_data->module_config[dai->id];103 int channels = hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max;104 int ret;105 106 cfg->bit_width = params_width(params);107 cfg->sample_rate = params_rate(params);108 cfg->num_channels = channels;109 audioreach_set_default_channel_mapping(cfg->channel_map, channels);110 111 switch (dai->id) {112 case DISPLAY_PORT_RX_0:113 cfg->dp_idx = 0;114 break;115 case DISPLAY_PORT_RX_1 ... DISPLAY_PORT_RX_7:116 cfg->dp_idx = dai->id - DISPLAY_PORT_RX_1 + 1;117 break;118 }119 120 ret = q6dsp_get_channel_allocation(channels);121 if (ret < 0)122 return ret;123 124 cfg->channel_allocation = ret;125 126 return 0;127}128 129static int q6dma_hw_params(struct snd_pcm_substream *substream,130 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)131{132 struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);133 struct audioreach_module_config *cfg = &dai_data->module_config[dai->id];134 int channels = hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max;135 136 cfg->bit_width = params_width(params);137 cfg->sample_rate = params_rate(params);138 cfg->num_channels = channels;139 audioreach_set_default_channel_mapping(cfg->channel_map, channels);140 141 return 0;142}143 144static void q6apm_lpass_dai_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)145{146 struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);147 int rc;148 149 if (dai_data->is_port_started[dai->id]) {150 rc = q6apm_graph_stop(dai_data->graph[dai->id]);151 dai_data->is_port_started[dai->id] = false;152 if (rc < 0)153 dev_err(dai->dev, "fail to close APM port (%d)\n", rc);154 }155 156 if (dai_data->graph[dai->id]) {157 q6apm_graph_close(dai_data->graph[dai->id]);158 dai_data->graph[dai->id] = NULL;159 }160}161 162static int q6apm_lpass_dai_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)163{164 struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);165 struct audioreach_module_config *cfg = &dai_data->module_config[dai->id];166 struct q6apm_graph *graph;167 int graph_id = dai->id;168 int rc;169 170 if (dai_data->is_port_started[dai->id]) {171 q6apm_graph_stop(dai_data->graph[dai->id]);172 dai_data->is_port_started[dai->id] = false;173 174 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {175 q6apm_graph_close(dai_data->graph[dai->id]);176 dai_data->graph[dai->id] = NULL;177 }178 }179 180 /**181 * It is recommend to load DSP with source graph first and then sink182 * graph, so sequence for playback and capture will be different183 */184 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {185 graph = q6apm_graph_open(dai->dev, NULL, dai->dev, graph_id);186 if (IS_ERR(graph)) {187 dev_err(dai->dev, "Failed to open graph (%d)\n", graph_id);188 rc = PTR_ERR(graph);189 return rc;190 }191 dai_data->graph[graph_id] = graph;192 }193 194 cfg->direction = substream->stream;195 rc = q6apm_graph_media_format_pcm(dai_data->graph[dai->id], cfg);196 if (rc) {197 dev_err(dai->dev, "Failed to set media format %d\n", rc);198 goto err;199 }200 201 rc = q6apm_graph_prepare(dai_data->graph[dai->id]);202 if (rc) {203 dev_err(dai->dev, "Failed to prepare Graph %d\n", rc);204 goto err;205 }206 207 rc = q6apm_graph_start(dai_data->graph[dai->id]);208 if (rc < 0) {209 dev_err(dai->dev, "fail to start APM port %x\n", dai->id);210 goto err;211 }212 dai_data->is_port_started[dai->id] = true;213 214 return 0;215err:216 q6apm_graph_close(dai_data->graph[dai->id]);217 dai_data->graph[dai->id] = NULL;218 return rc;219}220 221static int q6apm_lpass_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)222{223 struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);224 struct q6apm_graph *graph;225 int graph_id = dai->id;226 227 if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {228 graph = q6apm_graph_open(dai->dev, NULL, dai->dev, graph_id);229 if (IS_ERR(graph)) {230 dev_err(dai->dev, "Failed to open graph (%d)\n", graph_id);231 return PTR_ERR(graph);232 }233 dai_data->graph[graph_id] = graph;234 }235 236 return 0;237}238 239static int q6i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)240{241 struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);242 struct audioreach_module_config *cfg = &dai_data->module_config[dai->id];243 244 cfg->fmt = fmt;245 246 return 0;247}248 249static const struct snd_soc_dai_ops q6dma_ops = {250 .prepare = q6apm_lpass_dai_prepare,251 .startup = q6apm_lpass_dai_startup,252 .shutdown = q6apm_lpass_dai_shutdown,253 .set_channel_map = q6dma_set_channel_map,254 .hw_params = q6dma_hw_params,255};256 257static const struct snd_soc_dai_ops q6i2s_ops = {258 .prepare = q6apm_lpass_dai_prepare,259 .startup = q6apm_lpass_dai_startup,260 .shutdown = q6apm_lpass_dai_shutdown,261 .set_channel_map = q6dma_set_channel_map,262 .hw_params = q6dma_hw_params,263};264 265static const struct snd_soc_dai_ops q6hdmi_ops = {266 .prepare = q6apm_lpass_dai_prepare,267 .startup = q6apm_lpass_dai_startup,268 .shutdown = q6apm_lpass_dai_shutdown,269 .hw_params = q6hdmi_hw_params,270 .set_fmt = q6i2s_set_fmt,271};272 273static const struct snd_soc_component_driver q6apm_lpass_dai_component = {274 .name = "q6apm-be-dai-component",275 .of_xlate_dai_name = q6dsp_audio_ports_of_xlate_dai_name,276 .be_pcm_base = AUDIOREACH_BE_PCM_BASE,277 .use_dai_pcm_id = true,278};279 280static int q6apm_lpass_dai_dev_probe(struct platform_device *pdev)281{282 struct q6dsp_audio_port_dai_driver_config cfg;283 struct q6apm_lpass_dai_data *dai_data;284 struct snd_soc_dai_driver *dais;285 struct device *dev = &pdev->dev;286 int num_dais;287 288 dai_data = devm_kzalloc(dev, sizeof(*dai_data), GFP_KERNEL);289 if (!dai_data)290 return -ENOMEM;291 292 dev_set_drvdata(dev, dai_data);293 294 memset(&cfg, 0, sizeof(cfg));295 cfg.q6i2s_ops = &q6i2s_ops;296 cfg.q6dma_ops = &q6dma_ops;297 cfg.q6hdmi_ops = &q6hdmi_ops;298 dais = q6dsp_audio_ports_set_config(dev, &cfg, &num_dais);299 300 return devm_snd_soc_register_component(dev, &q6apm_lpass_dai_component, dais, num_dais);301}302 303#ifdef CONFIG_OF304static const struct of_device_id q6apm_lpass_dai_device_id[] = {305 { .compatible = "qcom,q6apm-lpass-dais" },306 {},307};308MODULE_DEVICE_TABLE(of, q6apm_lpass_dai_device_id);309#endif310 311static struct platform_driver q6apm_lpass_dai_platform_driver = {312 .driver = {313 .name = "q6apm-lpass-dais",314 .of_match_table = of_match_ptr(q6apm_lpass_dai_device_id),315 },316 .probe = q6apm_lpass_dai_dev_probe,317};318module_platform_driver(q6apm_lpass_dai_platform_driver);319 320MODULE_DESCRIPTION("AUDIOREACH APM LPASS dai driver");321MODULE_LICENSE("GPL");322