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

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