sound/soc/qcom/qdsp6/q6apm-lpass-dais.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 // Copyright (c) 2021, Linaro Limited
   3
   4 #include <linux/err.h>
   5 #include <linux/init.h>
   6 #include <linux/module.h>
   7 #include <linux/device.h>
   8 #include <linux/platform_device.h>
   9 #include <linux/slab.h>
  10 #include <sound/pcm.h>
  11 #include <sound/soc.h>
  12 #include <sound/pcm_params.h>
  13 #include "q6dsp-lpass-ports.h"
  14 #include "q6dsp-common.h"
  15 #include "audioreach.h"
  16 #include "q6apm.h"
  17
  18 #define AUDIOREACH_BE_PCM_BASE  16
  19
  20 struct q6apm_lpass_dai_data {
  21         struct q6apm_graph *graph[APM_PORT_MAX];
  22         bool is_port_started[APM_PORT_MAX];
  23         struct audioreach_module_config module_config[APM_PORT_MAX];
  24 };
  25
  26 static int q6dma_set_channel_map(struct snd_soc_dai *dai,
  27                                  unsigned int tx_num, unsigned int *tx_ch_mask,
  28                                  unsigned int rx_num, unsigned int *rx_ch_mask)
  29 {
  30
  31         struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);
  32         struct audioreach_module_config *cfg = &dai_data->module_config[dai->id];
  33         int ch_mask;
  34
  35         switch (dai->id) {
  36         case WSA_CODEC_DMA_TX_0:
  37         case WSA_CODEC_DMA_TX_1:
  38         case WSA_CODEC_DMA_TX_2:
  39         case VA_CODEC_DMA_TX_0:
  40         case VA_CODEC_DMA_TX_1:
  41         case VA_CODEC_DMA_TX_2:
  42         case TX_CODEC_DMA_TX_0:
  43         case TX_CODEC_DMA_TX_1:
  44         case TX_CODEC_DMA_TX_2:
  45         case TX_CODEC_DMA_TX_3:
  46         case TX_CODEC_DMA_TX_4:
  47         case TX_CODEC_DMA_TX_5:
  48                 if (!tx_ch_mask) {
  49                         dev_err(dai->dev, "tx slot not found\n");
  50                         return -EINVAL;
  51                 }
  52
  53                 if (tx_num > AR_PCM_MAX_NUM_CHANNEL) {
  54                         dev_err(dai->dev, "invalid tx num %d\n",
  55                                 tx_num);
  56                         return -EINVAL;
  57                 }
  58                 ch_mask = *tx_ch_mask;
  59
  60                 break;
  61         case WSA_CODEC_DMA_RX_0:
  62         case WSA_CODEC_DMA_RX_1:
  63         case RX_CODEC_DMA_RX_0:
  64         case RX_CODEC_DMA_RX_1:
  65         case RX_CODEC_DMA_RX_2:
  66         case RX_CODEC_DMA_RX_3:
  67         case RX_CODEC_DMA_RX_4:
  68         case RX_CODEC_DMA_RX_5:
  69         case RX_CODEC_DMA_RX_6:
  70         case RX_CODEC_DMA_RX_7:
  71                 /* rx */
  72                 if (!rx_ch_mask) {
  73                         dev_err(dai->dev, "rx slot not found\n");
  74                         return -EINVAL;
  75                 }
  76                 if (rx_num > APM_PORT_MAX_AUDIO_CHAN_CNT) {
  77                         dev_err(dai->dev, "invalid rx num %d\n",
  78                                 rx_num);
  79                         return -EINVAL;
  80                 }
  81                 ch_mask = *rx_ch_mask;
  82
  83                 break;
  84         default:
  85                 dev_err(dai->dev, "%s: invalid dai id 0x%x\n",
  86                         __func__, dai->id);
  87                 return -EINVAL;
  88         }
  89
  90         cfg->active_channels_mask = ch_mask;
  91
  92         return 0;
  93 }
  94
  95 static int q6hdmi_hw_params(struct snd_pcm_substream *substream,
  96                             struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
  97 {
  98         struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);
  99         struct audioreach_module_config *cfg = &dai_data->module_config[dai->id];
 100         int channels = params_channels(params);
 101         int ret;
 102
 103         cfg->bit_width = params_width(params);
 104         cfg->sample_rate = params_rate(params);
 105         cfg->num_channels = channels;
 106
 107         switch (dai->id) {
 108         case DISPLAY_PORT_RX_0:
 109                 cfg->dp_idx = 0;
 110                 break;
 111         case DISPLAY_PORT_RX_1 ... DISPLAY_PORT_RX_7:
 112                 cfg->dp_idx = dai->id - DISPLAY_PORT_RX_1 + 1;
 113                 break;
 114         }
 115
 116         ret = q6dsp_get_channel_allocation(channels);
 117         if (ret < 0)
 118                 return ret;
 119
 120         cfg->channel_allocation = ret;
 121
 122         return 0;
 123 }
 124
 125 static int q6dma_hw_params(struct snd_pcm_substream *substream,
 126                            struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
 127 {
 128         struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);
 129         struct audioreach_module_config *cfg = &dai_data->module_config[dai->id];
 130
 131         cfg->bit_width = params_width(params);
 132         cfg->sample_rate = params_rate(params);
 133         cfg->num_channels = params_channels(params);
 134
 135         return 0;
 136 }
 137
 138 static void q6apm_lpass_dai_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
 139 {
 140         struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);
 141         int rc;
 142
 143         if (!dai_data->is_port_started[dai->id])
 144                 return;
 145         rc = q6apm_graph_stop(dai_data->graph[dai->id]);
 146         if (rc < 0)
 147                 dev_err(dai->dev, "fail to close APM port (%d)\n", rc);
 148
 149         q6apm_graph_close(dai_data->graph[dai->id]);
 150         dai_data->is_port_started[dai->id] = false;
 151 }
 152
 153 static int q6apm_lpass_dai_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
 154 {
 155         struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);
 156         struct audioreach_module_config *cfg = &dai_data->module_config[dai->id];
 157         struct q6apm_graph *graph;
 158         int graph_id = dai->id;
 159         int rc;
 160
 161         if (dai_data->is_port_started[dai->id]) {
 162                 q6apm_graph_stop(dai_data->graph[dai->id]);
 163                 dai_data->is_port_started[dai->id] = false;
 164
 165                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 166                         q6apm_graph_close(dai_data->graph[dai->id]);
 167         }
 168
 169         /**
 170          * It is recommend to load DSP with source graph first and then sink
 171          * graph, so sequence for playback and capture will be different
 172          */
 173         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 174                 graph = q6apm_graph_open(dai->dev, NULL, dai->dev, graph_id);
 175                 if (IS_ERR(graph)) {
 176                         dev_err(dai->dev, "Failed to open graph (%d)\n", graph_id);
 177                         rc = PTR_ERR(graph);
 178                         return rc;
 179                 }
 180                 dai_data->graph[graph_id] = graph;
 181         }
 182
 183         cfg->direction = substream->stream;
 184         rc = q6apm_graph_media_format_pcm(dai_data->graph[dai->id], cfg);
 185
 186         if (rc) {
 187                 dev_err(dai->dev, "Failed to set media format %d\n", rc);
 188                 return rc;
 189         }
 190
 191         rc = q6apm_graph_prepare(dai_data->graph[dai->id]);
 192         if (rc) {
 193                 dev_err(dai->dev, "Failed to prepare Graph %d\n", rc);
 194                 return rc;
 195         }
 196
 197         rc = q6apm_graph_start(dai_data->graph[dai->id]);
 198         if (rc < 0) {
 199                 dev_err(dai->dev, "fail to start APM port %x\n", dai->id);
 200                 return rc;
 201         }
 202         dai_data->is_port_started[dai->id] = true;
 203
 204         return 0;
 205 }
 206
 207 static int q6apm_lpass_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
 208 {
 209         struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);
 210         struct q6apm_graph *graph;
 211         int graph_id = dai->id;
 212
 213         if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
 214                 graph = q6apm_graph_open(dai->dev, NULL, dai->dev, graph_id);
 215                 if (IS_ERR(graph)) {
 216                         dev_err(dai->dev, "Failed to open graph (%d)\n", graph_id);
 217                         return PTR_ERR(graph);
 218                 }
 219                 dai_data->graph[graph_id] = graph;
 220         }
 221
 222         return 0;
 223 }
 224
 225 static int q6i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 226 {
 227         struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);
 228         struct audioreach_module_config *cfg = &dai_data->module_config[dai->id];
 229
 230         cfg->fmt = fmt;
 231
 232         return 0;
 233 }
 234
 235 static const struct snd_soc_dai_ops q6dma_ops = {
 236         .prepare        = q6apm_lpass_dai_prepare,
 237         .startup        = q6apm_lpass_dai_startup,
 238         .shutdown       = q6apm_lpass_dai_shutdown,
 239         .set_channel_map  = q6dma_set_channel_map,
 240         .hw_params        = q6dma_hw_params,
 241 };
 242
 243 static const struct snd_soc_dai_ops q6i2s_ops = {
 244         .prepare        = q6apm_lpass_dai_prepare,
 245         .startup        = q6apm_lpass_dai_startup,
 246         .shutdown       = q6apm_lpass_dai_shutdown,
 247         .set_channel_map  = q6dma_set_channel_map,
 248         .hw_params        = q6dma_hw_params,
 249 };
 250
 251 static const struct snd_soc_dai_ops q6hdmi_ops = {
 252         .prepare        = q6apm_lpass_dai_prepare,
 253         .startup        = q6apm_lpass_dai_startup,
 254         .shutdown       = q6apm_lpass_dai_shutdown,
 255         .hw_params      = q6hdmi_hw_params,
 256         .set_fmt        = q6i2s_set_fmt,
 257 };
 258
 259 static const struct snd_soc_component_driver q6apm_lpass_dai_component = {
 260         .name = "q6apm-be-dai-component",
 261         .of_xlate_dai_name = q6dsp_audio_ports_of_xlate_dai_name,
 262         .be_pcm_base = AUDIOREACH_BE_PCM_BASE,
 263         .use_dai_pcm_id = true,
 264 };
 265
 266 static int q6apm_lpass_dai_dev_probe(struct platform_device *pdev)
 267 {
 268         struct q6dsp_audio_port_dai_driver_config cfg;
 269         struct q6apm_lpass_dai_data *dai_data;
 270         struct snd_soc_dai_driver *dais;
 271         struct device *dev = &pdev->dev;
 272         int num_dais;
 273
 274         dai_data = devm_kzalloc(dev, sizeof(*dai_data), GFP_KERNEL);
 275         if (!dai_data)
 276                 return -ENOMEM;
 277
 278         dev_set_drvdata(dev, dai_data);
 279
 280         memset(&cfg, 0, sizeof(cfg));
 281         cfg.q6i2s_ops = &q6i2s_ops;
 282         cfg.q6dma_ops = &q6dma_ops;
 283         cfg.q6hdmi_ops = &q6hdmi_ops;
 284         dais = q6dsp_audio_ports_set_config(dev, &cfg, &num_dais);
 285
 286         return devm_snd_soc_register_component(dev, &q6apm_lpass_dai_component, dais, num_dais);
 287 }
 288
 289 #ifdef CONFIG_OF
 290 static const struct of_device_id q6apm_lpass_dai_device_id[] = {
 291         { .compatible = "qcom,q6apm-lpass-dais" },
 292         {},
 293 };
 294 MODULE_DEVICE_TABLE(of, q6apm_lpass_dai_device_id);
 295 #endif
 296
 297 static struct platform_driver q6apm_lpass_dai_platform_driver = {
 298         .driver = {
 299                 .name = "q6apm-lpass-dais",
 300                 .of_match_table = of_match_ptr(q6apm_lpass_dai_device_id),
 301         },
 302         .probe = q6apm_lpass_dai_dev_probe,
 303 };
 304 module_platform_driver(q6apm_lpass_dai_platform_driver);
 305
 306 MODULE_DESCRIPTION("AUDIOREACH APM LPASS dai driver");
 307 MODULE_LICENSE("GPL");