xref: /openbmc/linux/sound/soc/sof/ipc3-pcm.c (revision 2a954832)
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 snd_sof_pcm *spcm;
23 
24 	spcm = snd_sof_find_spcm_dai(component, rtd);
25 	if (!spcm)
26 		return -EINVAL;
27 
28 	if (!spcm->prepared[substream->stream])
29 		return 0;
30 
31 	stream.hdr.size = sizeof(stream);
32 	stream.hdr.cmd = SOF_IPC_GLB_STREAM_MSG | SOF_IPC_STREAM_PCM_FREE;
33 	stream.comp_id = spcm->stream[substream->stream].comp_id;
34 
35 	/* send IPC to the DSP */
36 	return sof_ipc_tx_message_no_reply(sdev->ipc, &stream, sizeof(stream));
37 }
38 
39 static int sof_ipc3_pcm_hw_params(struct snd_soc_component *component,
40 				  struct snd_pcm_substream *substream,
41 				  struct snd_pcm_hw_params *params,
42 				  struct snd_sof_platform_stream_params *platform_params)
43 {
44 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
45 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
46 	struct sof_ipc_fw_version *v = &sdev->fw_ready.version;
47 	struct snd_pcm_runtime *runtime = substream->runtime;
48 	struct sof_ipc_pcm_params_reply ipc_params_reply;
49 	struct sof_ipc_pcm_params pcm;
50 	struct snd_sof_pcm *spcm;
51 	int ret;
52 
53 	spcm = snd_sof_find_spcm_dai(component, rtd);
54 	if (!spcm)
55 		return -EINVAL;
56 
57 	memset(&pcm, 0, sizeof(pcm));
58 
59 	/* number of pages should be rounded up */
60 	pcm.params.buffer.pages = PFN_UP(runtime->dma_bytes);
61 
62 	/* set IPC PCM parameters */
63 	pcm.hdr.size = sizeof(pcm);
64 	pcm.hdr.cmd = SOF_IPC_GLB_STREAM_MSG | SOF_IPC_STREAM_PCM_PARAMS;
65 	pcm.comp_id = spcm->stream[substream->stream].comp_id;
66 	pcm.params.hdr.size = sizeof(pcm.params);
67 	pcm.params.buffer.phy_addr = spcm->stream[substream->stream].page_table.addr;
68 	pcm.params.buffer.size = runtime->dma_bytes;
69 	pcm.params.direction = substream->stream;
70 	pcm.params.sample_valid_bytes = params_width(params) >> 3;
71 	pcm.params.buffer_fmt = SOF_IPC_BUFFER_INTERLEAVED;
72 	pcm.params.rate = params_rate(params);
73 	pcm.params.channels = params_channels(params);
74 	pcm.params.host_period_bytes = params_period_bytes(params);
75 
76 	/* container size */
77 	ret = snd_pcm_format_physical_width(params_format(params));
78 	if (ret < 0)
79 		return ret;
80 	pcm.params.sample_container_bytes = ret >> 3;
81 
82 	/* format */
83 	switch (params_format(params)) {
84 	case SNDRV_PCM_FORMAT_S16:
85 		pcm.params.frame_fmt = SOF_IPC_FRAME_S16_LE;
86 		break;
87 	case SNDRV_PCM_FORMAT_S24:
88 		pcm.params.frame_fmt = SOF_IPC_FRAME_S24_4LE;
89 		break;
90 	case SNDRV_PCM_FORMAT_S32:
91 		pcm.params.frame_fmt = SOF_IPC_FRAME_S32_LE;
92 		break;
93 	case SNDRV_PCM_FORMAT_FLOAT:
94 		pcm.params.frame_fmt = SOF_IPC_FRAME_FLOAT;
95 		break;
96 	default:
97 		return -EINVAL;
98 	}
99 
100 	/* Update the IPC message with information from the platform */
101 	pcm.params.stream_tag = platform_params->stream_tag;
102 
103 	if (platform_params->use_phy_address)
104 		pcm.params.buffer.phy_addr = platform_params->phy_addr;
105 
106 	if (platform_params->no_ipc_position) {
107 		/* For older ABIs set host_period_bytes to zero to inform
108 		 * FW we don't want position updates. Newer versions use
109 		 * no_stream_position for this purpose.
110 		 */
111 		if (v->abi_version < SOF_ABI_VER(3, 10, 0))
112 			pcm.params.host_period_bytes = 0;
113 		else
114 			pcm.params.no_stream_position = 1;
115 	}
116 
117 	if (platform_params->cont_update_posn)
118 		pcm.params.cont_update_posn = 1;
119 
120 	dev_dbg(component->dev, "stream_tag %d", pcm.params.stream_tag);
121 
122 	/* send hw_params IPC to the DSP */
123 	ret = sof_ipc_tx_message(sdev->ipc, &pcm, sizeof(pcm),
124 				 &ipc_params_reply, sizeof(ipc_params_reply));
125 	if (ret < 0) {
126 		dev_err(component->dev, "HW params ipc failed for stream %d\n",
127 			pcm.params.stream_tag);
128 		return ret;
129 	}
130 
131 	ret = snd_sof_set_stream_data_offset(sdev, &spcm->stream[substream->stream],
132 					     ipc_params_reply.posn_offset);
133 	if (ret < 0) {
134 		dev_err(component->dev, "%s: invalid stream data offset for PCM %d\n",
135 			__func__, spcm->pcm.pcm_id);
136 		return ret;
137 	}
138 
139 	return ret;
140 }
141 
142 static int sof_ipc3_pcm_trigger(struct snd_soc_component *component,
143 				struct snd_pcm_substream *substream, int cmd)
144 {
145 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
146 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
147 	struct sof_ipc_stream stream;
148 	struct snd_sof_pcm *spcm;
149 
150 	spcm = snd_sof_find_spcm_dai(component, rtd);
151 	if (!spcm)
152 		return -EINVAL;
153 
154 	stream.hdr.size = sizeof(stream);
155 	stream.hdr.cmd = SOF_IPC_GLB_STREAM_MSG;
156 	stream.comp_id = spcm->stream[substream->stream].comp_id;
157 
158 	switch (cmd) {
159 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
160 		stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_PAUSE;
161 		break;
162 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
163 		stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_RELEASE;
164 		break;
165 	case SNDRV_PCM_TRIGGER_START:
166 		stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_START;
167 		break;
168 	case SNDRV_PCM_TRIGGER_SUSPEND:
169 		fallthrough;
170 	case SNDRV_PCM_TRIGGER_STOP:
171 		stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_STOP;
172 		break;
173 	default:
174 		dev_err(component->dev, "Unhandled trigger cmd %d\n", cmd);
175 		return -EINVAL;
176 	}
177 
178 	/* send IPC to the DSP */
179 	return sof_ipc_tx_message_no_reply(sdev->ipc, &stream, sizeof(stream));
180 }
181 
182 static void ssp_dai_config_pcm_params_match(struct snd_sof_dev *sdev, const char *link_name,
183 					    struct snd_pcm_hw_params *params)
184 {
185 	struct sof_ipc_dai_config *config;
186 	struct snd_sof_dai *dai;
187 	int i;
188 
189 	/*
190 	 * Search for all matching DAIs as we can have both playback and capture DAI
191 	 * associated with the same link.
192 	 */
193 	list_for_each_entry(dai, &sdev->dai_list, list) {
194 		if (!dai->name || strcmp(link_name, dai->name))
195 			continue;
196 		for (i = 0; i < dai->number_configs; i++) {
197 			struct sof_dai_private_data *private = dai->private;
198 
199 			config = &private->dai_config[i];
200 			if (config->ssp.fsync_rate == params_rate(params)) {
201 				dev_dbg(sdev->dev, "DAI config %d matches pcm hw params\n", i);
202 				dai->current_config = i;
203 				break;
204 			}
205 		}
206 	}
207 }
208 
209 static int sof_ipc3_pcm_dai_link_fixup(struct snd_soc_pcm_runtime *rtd,
210 				       struct snd_pcm_hw_params *params)
211 {
212 	struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, SOF_AUDIO_PCM_DRV_NAME);
213 	struct snd_interval *channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
214 	struct snd_sof_dai *dai = snd_sof_find_dai(component, (char *)rtd->dai_link->name);
215 	struct snd_interval *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
216 	struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
217 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
218 	struct sof_dai_private_data *private;
219 	struct snd_soc_dpcm *dpcm;
220 
221 	if (!dai) {
222 		dev_err(component->dev, "%s: No DAI found with name %s\n", __func__,
223 			rtd->dai_link->name);
224 		return -EINVAL;
225 	}
226 
227 	private = dai->private;
228 	if (!private) {
229 		dev_err(component->dev, "%s: No private data found for DAI %s\n", __func__,
230 			rtd->dai_link->name);
231 		return -EINVAL;
232 	}
233 
234 	/* read format from topology */
235 	snd_mask_none(fmt);
236 
237 	switch (private->comp_dai->config.frame_fmt) {
238 	case SOF_IPC_FRAME_S16_LE:
239 		snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE);
240 		break;
241 	case SOF_IPC_FRAME_S24_4LE:
242 		snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
243 		break;
244 	case SOF_IPC_FRAME_S32_LE:
245 		snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S32_LE);
246 		break;
247 	default:
248 		dev_err(component->dev, "No available DAI format!\n");
249 		return -EINVAL;
250 	}
251 
252 	/* read rate and channels from topology */
253 	switch (private->dai_config->type) {
254 	case SOF_DAI_INTEL_SSP:
255 		/* search for config to pcm params match, if not found use default */
256 		ssp_dai_config_pcm_params_match(sdev, (char *)rtd->dai_link->name, params);
257 
258 		rate->min = private->dai_config[dai->current_config].ssp.fsync_rate;
259 		rate->max = private->dai_config[dai->current_config].ssp.fsync_rate;
260 		channels->min = private->dai_config[dai->current_config].ssp.tdm_slots;
261 		channels->max = private->dai_config[dai->current_config].ssp.tdm_slots;
262 
263 		dev_dbg(component->dev, "rate_min: %d rate_max: %d\n", rate->min, rate->max);
264 		dev_dbg(component->dev, "channels_min: %d channels_max: %d\n",
265 			channels->min, channels->max);
266 
267 		break;
268 	case SOF_DAI_INTEL_DMIC:
269 		/* DMIC only supports 16 or 32 bit formats */
270 		if (private->comp_dai->config.frame_fmt == SOF_IPC_FRAME_S24_4LE) {
271 			dev_err(component->dev, "Invalid fmt %d for DAI type %d\n",
272 				private->comp_dai->config.frame_fmt,
273 				private->dai_config->type);
274 		}
275 		break;
276 	case SOF_DAI_INTEL_HDA:
277 		/*
278 		 * HDAudio does not follow the default trigger
279 		 * sequence due to firmware implementation
280 		 */
281 		for_each_dpcm_fe(rtd, SNDRV_PCM_STREAM_PLAYBACK, dpcm) {
282 			struct snd_soc_pcm_runtime *fe = dpcm->fe;
283 
284 			fe->dai_link->trigger[SNDRV_PCM_STREAM_PLAYBACK] =
285 				SND_SOC_DPCM_TRIGGER_POST;
286 		}
287 		break;
288 	case SOF_DAI_INTEL_ALH:
289 		/*
290 		 * Dai could run with different channel count compared with
291 		 * front end, so get dai channel count from topology
292 		 */
293 		channels->min = private->dai_config->alh.channels;
294 		channels->max = private->dai_config->alh.channels;
295 		break;
296 	case SOF_DAI_IMX_ESAI:
297 		rate->min = private->dai_config->esai.fsync_rate;
298 		rate->max = private->dai_config->esai.fsync_rate;
299 		channels->min = private->dai_config->esai.tdm_slots;
300 		channels->max = private->dai_config->esai.tdm_slots;
301 
302 		dev_dbg(component->dev, "rate_min: %d rate_max: %d\n", rate->min, rate->max);
303 		dev_dbg(component->dev, "channels_min: %d channels_max: %d\n",
304 			channels->min, channels->max);
305 		break;
306 	case SOF_DAI_MEDIATEK_AFE:
307 		rate->min = private->dai_config->afe.rate;
308 		rate->max = private->dai_config->afe.rate;
309 		channels->min = private->dai_config->afe.channels;
310 		channels->max = private->dai_config->afe.channels;
311 
312 		dev_dbg(component->dev, "rate_min: %d rate_max: %d\n", rate->min, rate->max);
313 		dev_dbg(component->dev, "channels_min: %d channels_max: %d\n",
314 			channels->min, channels->max);
315 		break;
316 	case SOF_DAI_IMX_SAI:
317 		rate->min = private->dai_config->sai.fsync_rate;
318 		rate->max = private->dai_config->sai.fsync_rate;
319 		channels->min = private->dai_config->sai.tdm_slots;
320 		channels->max = private->dai_config->sai.tdm_slots;
321 
322 		dev_dbg(component->dev, "rate_min: %d rate_max: %d\n", rate->min, rate->max);
323 		dev_dbg(component->dev, "channels_min: %d channels_max: %d\n",
324 			channels->min, channels->max);
325 		break;
326 	case SOF_DAI_AMD_BT:
327 		rate->min = private->dai_config->acpbt.fsync_rate;
328 		rate->max = private->dai_config->acpbt.fsync_rate;
329 		channels->min = private->dai_config->acpbt.tdm_slots;
330 		channels->max = private->dai_config->acpbt.tdm_slots;
331 
332 		dev_dbg(component->dev,
333 			"AMD_BT rate_min: %d rate_max: %d\n", rate->min, rate->max);
334 		dev_dbg(component->dev, "AMD_BT channels_min: %d channels_max: %d\n",
335 			channels->min, channels->max);
336 		break;
337 	case SOF_DAI_AMD_SP:
338 	case SOF_DAI_AMD_SP_VIRTUAL:
339 		rate->min = private->dai_config->acpsp.fsync_rate;
340 		rate->max = private->dai_config->acpsp.fsync_rate;
341 		channels->min = private->dai_config->acpsp.tdm_slots;
342 		channels->max = private->dai_config->acpsp.tdm_slots;
343 
344 		dev_dbg(component->dev,
345 			"AMD_SP rate_min: %d rate_max: %d\n", rate->min, rate->max);
346 		dev_dbg(component->dev, "AMD_SP channels_min: %d channels_max: %d\n",
347 			channels->min, channels->max);
348 		break;
349 	case SOF_DAI_AMD_HS:
350 	case SOF_DAI_AMD_HS_VIRTUAL:
351 		rate->min = private->dai_config->acphs.fsync_rate;
352 		rate->max = private->dai_config->acphs.fsync_rate;
353 		channels->min = private->dai_config->acphs.tdm_slots;
354 		channels->max = private->dai_config->acphs.tdm_slots;
355 
356 		dev_dbg(component->dev,
357 			"AMD_HS channel_max: %d rate_max: %d\n", channels->max, rate->max);
358 		break;
359 	case SOF_DAI_AMD_DMIC:
360 		rate->min = private->dai_config->acpdmic.pdm_rate;
361 		rate->max = private->dai_config->acpdmic.pdm_rate;
362 		channels->min = private->dai_config->acpdmic.pdm_ch;
363 		channels->max = private->dai_config->acpdmic.pdm_ch;
364 
365 		dev_dbg(component->dev,
366 			"AMD_DMIC rate_min: %d rate_max: %d\n", rate->min, rate->max);
367 		dev_dbg(component->dev, "AMD_DMIC channels_min: %d channels_max: %d\n",
368 			channels->min, channels->max);
369 		break;
370 	default:
371 		dev_err(component->dev, "Invalid DAI type %d\n", private->dai_config->type);
372 		break;
373 	}
374 
375 	return 0;
376 }
377 
378 const struct sof_ipc_pcm_ops ipc3_pcm_ops = {
379 	.hw_params = sof_ipc3_pcm_hw_params,
380 	.hw_free = sof_ipc3_pcm_hw_free,
381 	.trigger = sof_ipc3_pcm_trigger,
382 	.dai_link_fixup = sof_ipc3_pcm_dai_link_fixup,
383 	.reset_hw_params_during_stop = true,
384 };
385