q6apm-lpass-dais.c (6970B)
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 "audioreach.h" 15#include "q6apm.h" 16 17#define AUDIOREACH_BE_PCM_BASE 16 18 19struct q6apm_lpass_dai_data { 20 struct q6apm_graph *graph[APM_PORT_MAX]; 21 bool is_port_started[APM_PORT_MAX]; 22 struct audioreach_module_config module_config[APM_PORT_MAX]; 23}; 24 25static int q6dma_set_channel_map(struct snd_soc_dai *dai, 26 unsigned int tx_num, unsigned int *tx_ch_mask, 27 unsigned int rx_num, unsigned int *rx_ch_mask) 28{ 29 30 struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev); 31 struct audioreach_module_config *cfg = &dai_data->module_config[dai->id]; 32 int ch_mask; 33 34 switch (dai->id) { 35 case WSA_CODEC_DMA_TX_0: 36 case WSA_CODEC_DMA_TX_1: 37 case WSA_CODEC_DMA_TX_2: 38 case VA_CODEC_DMA_TX_0: 39 case VA_CODEC_DMA_TX_1: 40 case VA_CODEC_DMA_TX_2: 41 case TX_CODEC_DMA_TX_0: 42 case TX_CODEC_DMA_TX_1: 43 case TX_CODEC_DMA_TX_2: 44 case TX_CODEC_DMA_TX_3: 45 case TX_CODEC_DMA_TX_4: 46 case TX_CODEC_DMA_TX_5: 47 if (!tx_ch_mask) { 48 dev_err(dai->dev, "tx slot not found\n"); 49 return -EINVAL; 50 } 51 52 if (tx_num > AR_PCM_MAX_NUM_CHANNEL) { 53 dev_err(dai->dev, "invalid tx num %d\n", 54 tx_num); 55 return -EINVAL; 56 } 57 ch_mask = *tx_ch_mask; 58 59 break; 60 case WSA_CODEC_DMA_RX_0: 61 case WSA_CODEC_DMA_RX_1: 62 case RX_CODEC_DMA_RX_0: 63 case RX_CODEC_DMA_RX_1: 64 case RX_CODEC_DMA_RX_2: 65 case RX_CODEC_DMA_RX_3: 66 case RX_CODEC_DMA_RX_4: 67 case RX_CODEC_DMA_RX_5: 68 case RX_CODEC_DMA_RX_6: 69 case RX_CODEC_DMA_RX_7: 70 /* rx */ 71 if (!rx_ch_mask) { 72 dev_err(dai->dev, "rx slot not found\n"); 73 return -EINVAL; 74 } 75 if (rx_num > APM_PORT_MAX_AUDIO_CHAN_CNT) { 76 dev_err(dai->dev, "invalid rx num %d\n", 77 rx_num); 78 return -EINVAL; 79 } 80 ch_mask = *rx_ch_mask; 81 82 break; 83 default: 84 dev_err(dai->dev, "%s: invalid dai id 0x%x\n", 85 __func__, dai->id); 86 return -EINVAL; 87 } 88 89 cfg->active_channels_mask = ch_mask; 90 91 return 0; 92} 93 94static int q6dma_hw_params(struct snd_pcm_substream *substream, 95 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) 96{ 97 struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev); 98 struct audioreach_module_config *cfg = &dai_data->module_config[dai->id]; 99 100 cfg->bit_width = params_width(params); 101 cfg->sample_rate = params_rate(params); 102 cfg->num_channels = params_channels(params); 103 104 return 0; 105} 106 107static void q6apm_lpass_dai_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) 108{ 109 struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev); 110 int rc; 111 112 if (!dai_data->is_port_started[dai->id]) 113 return; 114 rc = q6apm_graph_stop(dai_data->graph[dai->id]); 115 if (rc < 0) 116 dev_err(dai->dev, "fail to close APM port (%d)\n", rc); 117 118 q6apm_graph_close(dai_data->graph[dai->id]); 119 dai_data->is_port_started[dai->id] = false; 120} 121 122static int q6apm_lpass_dai_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) 123{ 124 struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev); 125 struct audioreach_module_config *cfg = &dai_data->module_config[dai->id]; 126 struct q6apm_graph *graph; 127 int graph_id = dai->id; 128 int rc; 129 130 /** 131 * It is recommend to load DSP with source graph first and then sink 132 * graph, so sequence for playback and capture will be different 133 */ 134 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 135 graph = q6apm_graph_open(dai->dev, NULL, dai->dev, graph_id); 136 if (IS_ERR(graph)) { 137 dev_err(dai->dev, "Failed to open graph (%d)\n", graph_id); 138 rc = PTR_ERR(graph); 139 return rc; 140 } 141 dai_data->graph[graph_id] = graph; 142 } 143 144 cfg->direction = substream->stream; 145 rc = q6apm_graph_media_format_pcm(dai_data->graph[dai->id], cfg); 146 147 if (rc) { 148 dev_err(dai->dev, "Failed to set media format %d\n", rc); 149 return rc; 150 } 151 152 rc = q6apm_graph_prepare(dai_data->graph[dai->id]); 153 if (rc) { 154 dev_err(dai->dev, "Failed to prepare Graph %d\n", rc); 155 return rc; 156 } 157 158 rc = q6apm_graph_start(dai_data->graph[dai->id]); 159 if (rc < 0) { 160 dev_err(dai->dev, "fail to start APM port %x\n", dai->id); 161 return rc; 162 } 163 dai_data->is_port_started[dai->id] = true; 164 165 return 0; 166} 167 168static int q6apm_lpass_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) 169{ 170 struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev); 171 struct q6apm_graph *graph; 172 int graph_id = dai->id; 173 174 if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { 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 return PTR_ERR(graph); 179 } 180 dai_data->graph[graph_id] = graph; 181 } 182 183 return 0; 184} 185 186static int q6i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) 187{ 188 struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev); 189 struct audioreach_module_config *cfg = &dai_data->module_config[dai->id]; 190 191 cfg->fmt = fmt; 192 193 return 0; 194} 195 196static const struct snd_soc_dai_ops q6dma_ops = { 197 .prepare = q6apm_lpass_dai_prepare, 198 .startup = q6apm_lpass_dai_startup, 199 .shutdown = q6apm_lpass_dai_shutdown, 200 .set_channel_map = q6dma_set_channel_map, 201 .hw_params = q6dma_hw_params, 202}; 203 204static const struct snd_soc_dai_ops q6i2s_ops = { 205 .prepare = q6apm_lpass_dai_prepare, 206 .startup = q6apm_lpass_dai_startup, 207 .shutdown = q6apm_lpass_dai_shutdown, 208 .set_channel_map = q6dma_set_channel_map, 209 .hw_params = q6dma_hw_params, 210 .set_fmt = q6i2s_set_fmt, 211}; 212 213static const struct snd_soc_component_driver q6apm_lpass_dai_component = { 214 .name = "q6apm-be-dai-component", 215 .of_xlate_dai_name = q6dsp_audio_ports_of_xlate_dai_name, 216 .be_pcm_base = AUDIOREACH_BE_PCM_BASE, 217 .use_dai_pcm_id = true, 218}; 219 220static int q6apm_lpass_dai_dev_probe(struct platform_device *pdev) 221{ 222 struct q6dsp_audio_port_dai_driver_config cfg; 223 struct q6apm_lpass_dai_data *dai_data; 224 struct snd_soc_dai_driver *dais; 225 struct device *dev = &pdev->dev; 226 int num_dais; 227 228 dai_data = devm_kzalloc(dev, sizeof(*dai_data), GFP_KERNEL); 229 if (!dai_data) 230 return -ENOMEM; 231 232 dev_set_drvdata(dev, dai_data); 233 234 memset(&cfg, 0, sizeof(cfg)); 235 cfg.q6i2s_ops = &q6i2s_ops; 236 cfg.q6dma_ops = &q6dma_ops; 237 dais = q6dsp_audio_ports_set_config(dev, &cfg, &num_dais); 238 239 return devm_snd_soc_register_component(dev, &q6apm_lpass_dai_component, dais, num_dais); 240} 241 242#ifdef CONFIG_OF 243static const struct of_device_id q6apm_lpass_dai_device_id[] = { 244 { .compatible = "qcom,q6apm-lpass-dais" }, 245 {}, 246}; 247MODULE_DEVICE_TABLE(of, q6apm_lpass_dai_device_id); 248#endif 249 250static struct platform_driver q6apm_lpass_dai_platform_driver = { 251 .driver = { 252 .name = "q6apm-lpass-dais", 253 .of_match_table = of_match_ptr(q6apm_lpass_dai_device_id), 254 }, 255 .probe = q6apm_lpass_dai_dev_probe, 256}; 257module_platform_driver(q6apm_lpass_dai_platform_driver); 258 259MODULE_DESCRIPTION("AUDIOREACH APM LPASS dai driver"); 260MODULE_LICENSE("GPL");