1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (c) 2021, Linaro Limited
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"
18 #define AUDIOREACH_BE_PCM_BASE 16
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];
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)
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];
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:
49 dev_err(dai->dev, "tx slot not found\n");
53 if (tx_num > AR_PCM_MAX_NUM_CHANNEL) {
54 dev_err(dai->dev, "invalid tx num %d\n",
58 ch_mask = *tx_ch_mask;
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:
73 dev_err(dai->dev, "rx slot not found\n");
76 if (rx_num > APM_PORT_MAX_AUDIO_CHAN_CNT) {
77 dev_err(dai->dev, "invalid rx num %d\n",
81 ch_mask = *rx_ch_mask;
85 dev_err(dai->dev, "%s: invalid dai id 0x%x\n",
90 cfg->active_channels_mask = ch_mask;
95 static int q6hdmi_hw_params(struct snd_pcm_substream *substream,
96 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
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);
103 cfg->bit_width = params_width(params);
104 cfg->sample_rate = params_rate(params);
105 cfg->num_channels = channels;
108 case DISPLAY_PORT_RX_0:
111 case DISPLAY_PORT_RX_1 ... DISPLAY_PORT_RX_7:
112 cfg->dp_idx = dai->id - DISPLAY_PORT_RX_1 + 1;
116 ret = q6dsp_get_channel_allocation(channels);
120 cfg->channel_allocation = ret;
125 static int q6dma_hw_params(struct snd_pcm_substream *substream,
126 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
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];
131 cfg->bit_width = params_width(params);
132 cfg->sample_rate = params_rate(params);
133 cfg->num_channels = params_channels(params);
138 static void q6apm_lpass_dai_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
140 struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);
143 if (!dai_data->is_port_started[dai->id])
145 rc = q6apm_graph_stop(dai_data->graph[dai->id]);
147 dev_err(dai->dev, "fail to close APM port (%d)\n", rc);
149 q6apm_graph_close(dai_data->graph[dai->id]);
150 dai_data->is_port_started[dai->id] = false;
153 static int q6apm_lpass_dai_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
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;
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;
165 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
166 q6apm_graph_close(dai_data->graph[dai->id]);
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
173 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
174 graph = q6apm_graph_open(dai->dev, NULL, dai->dev, graph_id);
176 dev_err(dai->dev, "Failed to open graph (%d)\n", graph_id);
180 dai_data->graph[graph_id] = graph;
183 cfg->direction = substream->stream;
184 rc = q6apm_graph_media_format_pcm(dai_data->graph[dai->id], cfg);
187 dev_err(dai->dev, "Failed to set media format %d\n", rc);
191 rc = q6apm_graph_prepare(dai_data->graph[dai->id]);
193 dev_err(dai->dev, "Failed to prepare Graph %d\n", rc);
197 rc = q6apm_graph_start(dai_data->graph[dai->id]);
199 dev_err(dai->dev, "fail to start APM port %x\n", dai->id);
202 dai_data->is_port_started[dai->id] = true;
207 static int q6apm_lpass_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
209 struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);
210 struct q6apm_graph *graph;
211 int graph_id = dai->id;
213 if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
214 graph = q6apm_graph_open(dai->dev, NULL, dai->dev, graph_id);
216 dev_err(dai->dev, "Failed to open graph (%d)\n", graph_id);
217 return PTR_ERR(graph);
219 dai_data->graph[graph_id] = graph;
225 static int q6i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
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];
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,
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,
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,
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,
266 static int q6apm_lpass_dai_dev_probe(struct platform_device *pdev)
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;
274 dai_data = devm_kzalloc(dev, sizeof(*dai_data), GFP_KERNEL);
278 dev_set_drvdata(dev, dai_data);
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);
286 return devm_snd_soc_register_component(dev, &q6apm_lpass_dai_component, dais, num_dais);
290 static const struct of_device_id q6apm_lpass_dai_device_id[] = {
291 { .compatible = "qcom,q6apm-lpass-dais" },
294 MODULE_DEVICE_TABLE(of, q6apm_lpass_dai_device_id);
297 static struct platform_driver q6apm_lpass_dai_platform_driver = {
299 .name = "q6apm-lpass-dais",
300 .of_match_table = of_match_ptr(q6apm_lpass_dai_device_id),
302 .probe = q6apm_lpass_dai_dev_probe,
304 module_platform_driver(q6apm_lpass_dai_platform_driver);
306 MODULE_DESCRIPTION("AUDIOREACH APM LPASS dai driver");
307 MODULE_LICENSE("GPL");