xref: /openbmc/linux/sound/soc/sof/ipc3-pcm.c (revision 1a340825)
1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
2 //
3 // This file is provided under a dual BSD/GPLv2 license.  When using or
4 // redistributing this file, you may do so under either license.
5 //
6 // Copyright(c) 2021 Intel Corporation. All rights reserved.
7 //
8 //
9 
10 #include <sound/pcm_params.h>
11 #include "ipc3-priv.h"
12 #include "ops.h"
13 #include "sof-priv.h"
14 #include "sof-audio.h"
15 
16 static int sof_ipc3_pcm_hw_free(struct snd_soc_component *component,
17 				struct snd_pcm_substream *substream)
18 {
19 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
20 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
21 	struct sof_ipc_stream stream;
22 	struct sof_ipc_reply reply;
23 	struct snd_sof_pcm *spcm;
24 
25 	spcm = snd_sof_find_spcm_dai(component, rtd);
26 	if (!spcm)
27 		return -EINVAL;
28 
29 	if (!spcm->prepared[substream->stream])
30 		return 0;
31 
32 	stream.hdr.size = sizeof(stream);
33 	stream.hdr.cmd = SOF_IPC_GLB_STREAM_MSG | SOF_IPC_STREAM_PCM_FREE;
34 	stream.comp_id = spcm->stream[substream->stream].comp_id;
35 
36 	/* send IPC to the DSP */
37 	return sof_ipc_tx_message(sdev->ipc, &stream, sizeof(stream), &reply, sizeof(reply));
38 }
39 
40 static int sof_ipc3_pcm_hw_params(struct snd_soc_component *component,
41 				  struct snd_pcm_substream *substream,
42 				  struct snd_pcm_hw_params *params,
43 				  struct snd_sof_platform_stream_params *platform_params)
44 {
45 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
46 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
47 	struct sof_ipc_fw_version *v = &sdev->fw_ready.version;
48 	struct snd_pcm_runtime *runtime = substream->runtime;
49 	struct sof_ipc_pcm_params_reply ipc_params_reply;
50 	struct sof_ipc_pcm_params pcm;
51 	struct snd_sof_pcm *spcm;
52 	int ret;
53 
54 	spcm = snd_sof_find_spcm_dai(component, rtd);
55 	if (!spcm)
56 		return -EINVAL;
57 
58 	memset(&pcm, 0, sizeof(pcm));
59 
60 	/* number of pages should be rounded up */
61 	pcm.params.buffer.pages = PFN_UP(runtime->dma_bytes);
62 
63 	/* set IPC PCM parameters */
64 	pcm.hdr.size = sizeof(pcm);
65 	pcm.hdr.cmd = SOF_IPC_GLB_STREAM_MSG | SOF_IPC_STREAM_PCM_PARAMS;
66 	pcm.comp_id = spcm->stream[substream->stream].comp_id;
67 	pcm.params.hdr.size = sizeof(pcm.params);
68 	pcm.params.buffer.phy_addr = spcm->stream[substream->stream].page_table.addr;
69 	pcm.params.buffer.size = runtime->dma_bytes;
70 	pcm.params.direction = substream->stream;
71 	pcm.params.sample_valid_bytes = params_width(params) >> 3;
72 	pcm.params.buffer_fmt = SOF_IPC_BUFFER_INTERLEAVED;
73 	pcm.params.rate = params_rate(params);
74 	pcm.params.channels = params_channels(params);
75 	pcm.params.host_period_bytes = params_period_bytes(params);
76 
77 	/* container size */
78 	ret = snd_pcm_format_physical_width(params_format(params));
79 	if (ret < 0)
80 		return ret;
81 	pcm.params.sample_container_bytes = ret >> 3;
82 
83 	/* format */
84 	switch (params_format(params)) {
85 	case SNDRV_PCM_FORMAT_S16:
86 		pcm.params.frame_fmt = SOF_IPC_FRAME_S16_LE;
87 		break;
88 	case SNDRV_PCM_FORMAT_S24:
89 		pcm.params.frame_fmt = SOF_IPC_FRAME_S24_4LE;
90 		break;
91 	case SNDRV_PCM_FORMAT_S32:
92 		pcm.params.frame_fmt = SOF_IPC_FRAME_S32_LE;
93 		break;
94 	case SNDRV_PCM_FORMAT_FLOAT:
95 		pcm.params.frame_fmt = SOF_IPC_FRAME_FLOAT;
96 		break;
97 	default:
98 		return -EINVAL;
99 	}
100 
101 	/* Update the IPC message with information from the platform */
102 	pcm.params.stream_tag = platform_params->stream_tag;
103 
104 	if (platform_params->use_phy_address)
105 		pcm.params.buffer.phy_addr = platform_params->phy_addr;
106 
107 	if (platform_params->no_ipc_position) {
108 		/* For older ABIs set host_period_bytes to zero to inform
109 		 * FW we don't want position updates. Newer versions use
110 		 * no_stream_position for this purpose.
111 		 */
112 		if (v->abi_version < SOF_ABI_VER(3, 10, 0))
113 			pcm.params.host_period_bytes = 0;
114 		else
115 			pcm.params.no_stream_position = 1;
116 	}
117 
118 	dev_dbg(component->dev, "stream_tag %d", pcm.params.stream_tag);
119 
120 	/* send hw_params IPC to the DSP */
121 	ret = sof_ipc_tx_message(sdev->ipc, &pcm, sizeof(pcm),
122 				 &ipc_params_reply, sizeof(ipc_params_reply));
123 	if (ret < 0) {
124 		dev_err(component->dev, "HW params ipc failed for stream %d\n",
125 			pcm.params.stream_tag);
126 		return ret;
127 	}
128 
129 	ret = snd_sof_set_stream_data_offset(sdev, substream, ipc_params_reply.posn_offset);
130 	if (ret < 0) {
131 		dev_err(component->dev, "%s: invalid stream data offset for PCM %d\n",
132 			__func__, spcm->pcm.pcm_id);
133 		return ret;
134 	}
135 
136 	return ret;
137 }
138 
139 static int sof_ipc3_pcm_trigger(struct snd_soc_component *component,
140 				struct snd_pcm_substream *substream, int cmd)
141 {
142 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
143 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
144 	struct sof_ipc_stream stream;
145 	struct sof_ipc_reply reply;
146 	struct snd_sof_pcm *spcm;
147 
148 	spcm = snd_sof_find_spcm_dai(component, rtd);
149 	if (!spcm)
150 		return -EINVAL;
151 
152 	stream.hdr.size = sizeof(stream);
153 	stream.hdr.cmd = SOF_IPC_GLB_STREAM_MSG;
154 	stream.comp_id = spcm->stream[substream->stream].comp_id;
155 
156 	switch (cmd) {
157 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
158 		stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_PAUSE;
159 		break;
160 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
161 		stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_RELEASE;
162 		break;
163 	case SNDRV_PCM_TRIGGER_START:
164 		stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_START;
165 		break;
166 	case SNDRV_PCM_TRIGGER_SUSPEND:
167 		fallthrough;
168 	case SNDRV_PCM_TRIGGER_STOP:
169 		stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_STOP;
170 		break;
171 	default:
172 		dev_err(component->dev, "Unhandled trigger cmd %d\n", cmd);
173 		return -EINVAL;
174 	}
175 
176 	/* send IPC to the DSP */
177 	return sof_ipc_tx_message(sdev->ipc, &stream, sizeof(stream), &reply, sizeof(reply));
178 }
179 
180 static void ssp_dai_config_pcm_params_match(struct snd_sof_dev *sdev, const char *link_name,
181 					    struct snd_pcm_hw_params *params)
182 {
183 	struct sof_ipc_dai_config *config;
184 	struct snd_sof_dai *dai;
185 	int i;
186 
187 	/*
188 	 * Search for all matching DAIs as we can have both playback and capture DAI
189 	 * associated with the same link.
190 	 */
191 	list_for_each_entry(dai, &sdev->dai_list, list) {
192 		if (!dai->name || strcmp(link_name, dai->name))
193 			continue;
194 		for (i = 0; i < dai->number_configs; i++) {
195 			struct sof_dai_private_data *private = dai->private;
196 
197 			config = &private->dai_config[i];
198 			if (config->ssp.fsync_rate == params_rate(params)) {
199 				dev_dbg(sdev->dev, "DAI config %d matches pcm hw params\n", i);
200 				dai->current_config = i;
201 				break;
202 			}
203 		}
204 	}
205 }
206 
207 static int sof_ipc3_pcm_dai_link_fixup(struct snd_soc_pcm_runtime *rtd,
208 				       struct snd_pcm_hw_params *params)
209 {
210 	struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, SOF_AUDIO_PCM_DRV_NAME);
211 	struct snd_interval *channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
212 	struct snd_sof_dai *dai = snd_sof_find_dai(component, (char *)rtd->dai_link->name);
213 	struct snd_interval *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
214 	struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
215 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
216 	struct sof_dai_private_data *private;
217 	struct snd_soc_dpcm *dpcm;
218 
219 	if (!dai) {
220 		dev_err(component->dev, "%s: No DAI found with name %s\n", __func__,
221 			rtd->dai_link->name);
222 		return -EINVAL;
223 	}
224 
225 	private = dai->private;
226 	if (!private) {
227 		dev_err(component->dev, "%s: No private data found for DAI %s\n", __func__,
228 			rtd->dai_link->name);
229 		return -EINVAL;
230 	}
231 
232 	/* read format from topology */
233 	snd_mask_none(fmt);
234 
235 	switch (private->comp_dai->config.frame_fmt) {
236 	case SOF_IPC_FRAME_S16_LE:
237 		snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE);
238 		break;
239 	case SOF_IPC_FRAME_S24_4LE:
240 		snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
241 		break;
242 	case SOF_IPC_FRAME_S32_LE:
243 		snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S32_LE);
244 		break;
245 	default:
246 		dev_err(component->dev, "No available DAI format!\n");
247 		return -EINVAL;
248 	}
249 
250 	/* read rate and channels from topology */
251 	switch (private->dai_config->type) {
252 	case SOF_DAI_INTEL_SSP:
253 		/* search for config to pcm params match, if not found use default */
254 		ssp_dai_config_pcm_params_match(sdev, (char *)rtd->dai_link->name, params);
255 
256 		rate->min = private->dai_config[dai->current_config].ssp.fsync_rate;
257 		rate->max = private->dai_config[dai->current_config].ssp.fsync_rate;
258 		channels->min = private->dai_config[dai->current_config].ssp.tdm_slots;
259 		channels->max = private->dai_config[dai->current_config].ssp.tdm_slots;
260 
261 		dev_dbg(component->dev, "rate_min: %d rate_max: %d\n", rate->min, rate->max);
262 		dev_dbg(component->dev, "channels_min: %d channels_max: %d\n",
263 			channels->min, channels->max);
264 
265 		break;
266 	case SOF_DAI_INTEL_DMIC:
267 		/* DMIC only supports 16 or 32 bit formats */
268 		if (private->comp_dai->config.frame_fmt == SOF_IPC_FRAME_S24_4LE) {
269 			dev_err(component->dev, "Invalid fmt %d for DAI type %d\n",
270 				private->comp_dai->config.frame_fmt,
271 				private->dai_config->type);
272 		}
273 		break;
274 	case SOF_DAI_INTEL_HDA:
275 		/*
276 		 * HDAudio does not follow the default trigger
277 		 * sequence due to firmware implementation
278 		 */
279 		for_each_dpcm_fe(rtd, SNDRV_PCM_STREAM_PLAYBACK, dpcm) {
280 			struct snd_soc_pcm_runtime *fe = dpcm->fe;
281 
282 			fe->dai_link->trigger[SNDRV_PCM_STREAM_PLAYBACK] =
283 				SND_SOC_DPCM_TRIGGER_POST;
284 		}
285 		break;
286 	case SOF_DAI_INTEL_ALH:
287 		/*
288 		 * Dai could run with different channel count compared with
289 		 * front end, so get dai channel count from topology
290 		 */
291 		channels->min = private->dai_config->alh.channels;
292 		channels->max = private->dai_config->alh.channels;
293 		break;
294 	case SOF_DAI_IMX_ESAI:
295 		rate->min = private->dai_config->esai.fsync_rate;
296 		rate->max = private->dai_config->esai.fsync_rate;
297 		channels->min = private->dai_config->esai.tdm_slots;
298 		channels->max = private->dai_config->esai.tdm_slots;
299 
300 		dev_dbg(component->dev, "rate_min: %d rate_max: %d\n", rate->min, rate->max);
301 		dev_dbg(component->dev, "channels_min: %d channels_max: %d\n",
302 			channels->min, channels->max);
303 		break;
304 	case SOF_DAI_MEDIATEK_AFE:
305 		rate->min = private->dai_config->afe.rate;
306 		rate->max = private->dai_config->afe.rate;
307 		channels->min = private->dai_config->afe.channels;
308 		channels->max = private->dai_config->afe.channels;
309 
310 		dev_dbg(component->dev, "rate_min: %d rate_max: %d\n", rate->min, rate->max);
311 		dev_dbg(component->dev, "channels_min: %d channels_max: %d\n",
312 			channels->min, channels->max);
313 		break;
314 	case SOF_DAI_IMX_SAI:
315 		rate->min = private->dai_config->sai.fsync_rate;
316 		rate->max = private->dai_config->sai.fsync_rate;
317 		channels->min = private->dai_config->sai.tdm_slots;
318 		channels->max = private->dai_config->sai.tdm_slots;
319 
320 		dev_dbg(component->dev, "rate_min: %d rate_max: %d\n", rate->min, rate->max);
321 		dev_dbg(component->dev, "channels_min: %d channels_max: %d\n",
322 			channels->min, channels->max);
323 		break;
324 	case SOF_DAI_AMD_BT:
325 		rate->min = private->dai_config->acpbt.fsync_rate;
326 		rate->max = private->dai_config->acpbt.fsync_rate;
327 		channels->min = private->dai_config->acpbt.tdm_slots;
328 		channels->max = private->dai_config->acpbt.tdm_slots;
329 
330 		dev_dbg(component->dev,
331 			"AMD_BT rate_min: %d rate_max: %d\n", rate->min, rate->max);
332 		dev_dbg(component->dev, "AMD_BT channels_min: %d channels_max: %d\n",
333 			channels->min, channels->max);
334 		break;
335 	case SOF_DAI_AMD_SP:
336 		rate->min = private->dai_config->acpsp.fsync_rate;
337 		rate->max = private->dai_config->acpsp.fsync_rate;
338 		channels->min = private->dai_config->acpsp.tdm_slots;
339 		channels->max = private->dai_config->acpsp.tdm_slots;
340 
341 		dev_dbg(component->dev,
342 			"AMD_SP rate_min: %d rate_max: %d\n", rate->min, rate->max);
343 		dev_dbg(component->dev, "AMD_SP channels_min: %d channels_max: %d\n",
344 			channels->min, channels->max);
345 		break;
346 	case SOF_DAI_AMD_DMIC:
347 		rate->min = private->dai_config->acpdmic.fsync_rate;
348 		rate->max = private->dai_config->acpdmic.fsync_rate;
349 		channels->min = private->dai_config->acpdmic.tdm_slots;
350 		channels->max = private->dai_config->acpdmic.tdm_slots;
351 
352 		dev_dbg(component->dev,
353 			"AMD_DMIC rate_min: %d rate_max: %d\n", rate->min, rate->max);
354 		dev_dbg(component->dev, "AMD_DMIC channels_min: %d channels_max: %d\n",
355 			channels->min, channels->max);
356 		break;
357 	default:
358 		dev_err(component->dev, "Invalid DAI type %d\n", private->dai_config->type);
359 		break;
360 	}
361 
362 	return 0;
363 }
364 
365 const struct sof_ipc_pcm_ops ipc3_pcm_ops = {
366 	.hw_params = sof_ipc3_pcm_hw_params,
367 	.hw_free = sof_ipc3_pcm_hw_free,
368 	.trigger = sof_ipc3_pcm_trigger,
369 	.dai_link_fixup = sof_ipc3_pcm_dai_link_fixup,
370 };
371