Commit | Line | Data |
---|---|---|
2a9e92d3 SK |
1 | // SPDX-License-Identifier: GPL-2.0 |
2 | // Copyright (c) 2011-2017, The Linux Foundation. All rights reserved. | |
3 | // Copyright (c) 2018, Linaro Limited | |
4 | ||
5 | #include <linux/init.h> | |
6 | #include <linux/err.h> | |
7 | #include <linux/module.h> | |
8 | #include <linux/platform_device.h> | |
9 | #include <linux/slab.h> | |
2a9e92d3 | 10 | #include <sound/soc.h> |
2a9e92d3 SK |
11 | #include <sound/soc-dapm.h> |
12 | #include <sound/pcm.h> | |
22930c79 SK |
13 | #include <linux/spinlock.h> |
14 | #include <sound/compress_driver.h> | |
2a9e92d3 SK |
15 | #include <asm/dma.h> |
16 | #include <linux/dma-mapping.h> | |
17 | #include <linux/of_device.h> | |
18 | #include <sound/pcm_params.h> | |
19 | #include "q6asm.h" | |
20 | #include "q6routing.h" | |
21 | #include "q6dsp-errno.h" | |
22 | ||
23 | #define DRV_NAME "q6asm-fe-dai" | |
24 | ||
25 | #define PLAYBACK_MIN_NUM_PERIODS 2 | |
26 | #define PLAYBACK_MAX_NUM_PERIODS 8 | |
27 | #define PLAYBACK_MAX_PERIOD_SIZE 65536 | |
28 | #define PLAYBACK_MIN_PERIOD_SIZE 128 | |
29 | #define CAPTURE_MIN_NUM_PERIODS 2 | |
30 | #define CAPTURE_MAX_NUM_PERIODS 8 | |
31 | #define CAPTURE_MAX_PERIOD_SIZE 4096 | |
32 | #define CAPTURE_MIN_PERIOD_SIZE 320 | |
33 | #define SID_MASK_DEFAULT 0xF | |
34 | ||
22930c79 SK |
35 | /* Default values used if user space does not set */ |
36 | #define COMPR_PLAYBACK_MIN_FRAGMENT_SIZE (8 * 1024) | |
37 | #define COMPR_PLAYBACK_MAX_FRAGMENT_SIZE (128 * 1024) | |
38 | #define COMPR_PLAYBACK_MIN_NUM_FRAGMENTS (4) | |
39 | #define COMPR_PLAYBACK_MAX_NUM_FRAGMENTS (16 * 4) | |
40 | #define Q6ASM_DAI_TX_RX 0 | |
41 | #define Q6ASM_DAI_TX 1 | |
42 | #define Q6ASM_DAI_RX 2 | |
43 | ||
2a9e92d3 SK |
44 | enum stream_state { |
45 | Q6ASM_STREAM_IDLE = 0, | |
46 | Q6ASM_STREAM_STOPPED, | |
47 | Q6ASM_STREAM_RUNNING, | |
48 | }; | |
49 | ||
50 | struct q6asm_dai_rtd { | |
51 | struct snd_pcm_substream *substream; | |
22930c79 SK |
52 | struct snd_compr_stream *cstream; |
53 | struct snd_compr_params codec_param; | |
54 | struct snd_dma_buffer dma_buffer; | |
55 | spinlock_t lock; | |
2a9e92d3 SK |
56 | phys_addr_t phys; |
57 | unsigned int pcm_size; | |
58 | unsigned int pcm_count; | |
59 | unsigned int pcm_irq_pos; /* IRQ position */ | |
60 | unsigned int periods; | |
22930c79 SK |
61 | unsigned int bytes_sent; |
62 | unsigned int bytes_received; | |
63 | unsigned int copied_total; | |
2a9e92d3 SK |
64 | uint16_t bits_per_sample; |
65 | uint16_t source; /* Encoding source bit mask */ | |
66 | struct audio_client *audio_client; | |
67 | uint16_t session_id; | |
68 | enum stream_state state; | |
69 | }; | |
70 | ||
71 | struct q6asm_dai_data { | |
72 | long long int sid; | |
73 | }; | |
74 | ||
75 | static struct snd_pcm_hardware q6asm_dai_hardware_capture = { | |
76 | .info = (SNDRV_PCM_INFO_MMAP | | |
77 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
78 | SNDRV_PCM_INFO_MMAP_VALID | | |
79 | SNDRV_PCM_INFO_INTERLEAVED | | |
80 | SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME), | |
81 | .formats = (SNDRV_PCM_FMTBIT_S16_LE | | |
82 | SNDRV_PCM_FMTBIT_S24_LE), | |
83 | .rates = SNDRV_PCM_RATE_8000_48000, | |
84 | .rate_min = 8000, | |
85 | .rate_max = 48000, | |
86 | .channels_min = 1, | |
87 | .channels_max = 4, | |
88 | .buffer_bytes_max = CAPTURE_MAX_NUM_PERIODS * | |
89 | CAPTURE_MAX_PERIOD_SIZE, | |
90 | .period_bytes_min = CAPTURE_MIN_PERIOD_SIZE, | |
91 | .period_bytes_max = CAPTURE_MAX_PERIOD_SIZE, | |
92 | .periods_min = CAPTURE_MIN_NUM_PERIODS, | |
93 | .periods_max = CAPTURE_MAX_NUM_PERIODS, | |
94 | .fifo_size = 0, | |
95 | }; | |
96 | ||
97 | static struct snd_pcm_hardware q6asm_dai_hardware_playback = { | |
98 | .info = (SNDRV_PCM_INFO_MMAP | | |
99 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
100 | SNDRV_PCM_INFO_MMAP_VALID | | |
101 | SNDRV_PCM_INFO_INTERLEAVED | | |
102 | SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME), | |
103 | .formats = (SNDRV_PCM_FMTBIT_S16_LE | | |
104 | SNDRV_PCM_FMTBIT_S24_LE), | |
105 | .rates = SNDRV_PCM_RATE_8000_192000, | |
106 | .rate_min = 8000, | |
107 | .rate_max = 192000, | |
108 | .channels_min = 1, | |
109 | .channels_max = 8, | |
110 | .buffer_bytes_max = (PLAYBACK_MAX_NUM_PERIODS * | |
111 | PLAYBACK_MAX_PERIOD_SIZE), | |
112 | .period_bytes_min = PLAYBACK_MIN_PERIOD_SIZE, | |
113 | .period_bytes_max = PLAYBACK_MAX_PERIOD_SIZE, | |
114 | .periods_min = PLAYBACK_MIN_NUM_PERIODS, | |
115 | .periods_max = PLAYBACK_MAX_NUM_PERIODS, | |
116 | .fifo_size = 0, | |
117 | }; | |
118 | ||
119 | #define Q6ASM_FEDAI_DRIVER(num) { \ | |
120 | .playback = { \ | |
121 | .stream_name = "MultiMedia"#num" Playback", \ | |
122 | .rates = (SNDRV_PCM_RATE_8000_192000| \ | |
123 | SNDRV_PCM_RATE_KNOT), \ | |
124 | .formats = (SNDRV_PCM_FMTBIT_S16_LE | \ | |
125 | SNDRV_PCM_FMTBIT_S24_LE), \ | |
126 | .channels_min = 1, \ | |
127 | .channels_max = 8, \ | |
128 | .rate_min = 8000, \ | |
129 | .rate_max = 192000, \ | |
130 | }, \ | |
131 | .capture = { \ | |
132 | .stream_name = "MultiMedia"#num" Capture", \ | |
133 | .rates = (SNDRV_PCM_RATE_8000_48000| \ | |
134 | SNDRV_PCM_RATE_KNOT), \ | |
135 | .formats = (SNDRV_PCM_FMTBIT_S16_LE | \ | |
136 | SNDRV_PCM_FMTBIT_S24_LE), \ | |
137 | .channels_min = 1, \ | |
138 | .channels_max = 4, \ | |
139 | .rate_min = 8000, \ | |
140 | .rate_max = 48000, \ | |
141 | }, \ | |
142 | .name = "MultiMedia"#num, \ | |
2a9e92d3 SK |
143 | .id = MSM_FRONTEND_DAI_MULTIMEDIA##num, \ |
144 | } | |
145 | ||
146 | /* Conventional and unconventional sample rate supported */ | |
147 | static unsigned int supported_sample_rates[] = { | |
148 | 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, | |
149 | 88200, 96000, 176400, 192000 | |
150 | }; | |
151 | ||
152 | static struct snd_pcm_hw_constraint_list constraints_sample_rates = { | |
153 | .count = ARRAY_SIZE(supported_sample_rates), | |
154 | .list = supported_sample_rates, | |
155 | .mask = 0, | |
156 | }; | |
157 | ||
22930c79 SK |
158 | static const struct snd_compr_codec_caps q6asm_compr_caps = { |
159 | .num_descriptors = 1, | |
160 | .descriptor[0].max_ch = 2, | |
161 | .descriptor[0].sample_rates = { 8000, 11025, 12000, 16000, 22050, | |
162 | 24000, 32000, 44100, 48000, 88200, | |
163 | 96000, 176400, 192000 }, | |
164 | .descriptor[0].num_sample_rates = 13, | |
165 | .descriptor[0].bit_rate[0] = 320, | |
166 | .descriptor[0].bit_rate[1] = 128, | |
167 | .descriptor[0].num_bitrates = 2, | |
168 | .descriptor[0].profiles = 0, | |
169 | .descriptor[0].modes = SND_AUDIOCHANMODE_MP3_STEREO, | |
170 | .descriptor[0].formats = 0, | |
171 | }; | |
172 | ||
2a9e92d3 SK |
173 | static void event_handler(uint32_t opcode, uint32_t token, |
174 | uint32_t *payload, void *priv) | |
175 | { | |
176 | struct q6asm_dai_rtd *prtd = priv; | |
177 | struct snd_pcm_substream *substream = prtd->substream; | |
178 | ||
179 | switch (opcode) { | |
180 | case ASM_CLIENT_EVENT_CMD_RUN_DONE: | |
181 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
182 | q6asm_write_async(prtd->audio_client, | |
183 | prtd->pcm_count, 0, 0, NO_TIMESTAMP); | |
184 | break; | |
185 | case ASM_CLIENT_EVENT_CMD_EOS_DONE: | |
186 | prtd->state = Q6ASM_STREAM_STOPPED; | |
187 | break; | |
188 | case ASM_CLIENT_EVENT_DATA_WRITE_DONE: { | |
189 | prtd->pcm_irq_pos += prtd->pcm_count; | |
190 | snd_pcm_period_elapsed(substream); | |
191 | if (prtd->state == Q6ASM_STREAM_RUNNING) | |
192 | q6asm_write_async(prtd->audio_client, | |
193 | prtd->pcm_count, 0, 0, NO_TIMESTAMP); | |
194 | ||
195 | break; | |
196 | } | |
197 | case ASM_CLIENT_EVENT_DATA_READ_DONE: | |
198 | prtd->pcm_irq_pos += prtd->pcm_count; | |
199 | snd_pcm_period_elapsed(substream); | |
200 | if (prtd->state == Q6ASM_STREAM_RUNNING) | |
201 | q6asm_read(prtd->audio_client); | |
202 | ||
203 | break; | |
204 | default: | |
205 | break; | |
206 | } | |
207 | } | |
208 | ||
209 | static int q6asm_dai_prepare(struct snd_pcm_substream *substream) | |
210 | { | |
211 | struct snd_pcm_runtime *runtime = substream->runtime; | |
212 | struct snd_soc_pcm_runtime *soc_prtd = substream->private_data; | |
213 | struct q6asm_dai_rtd *prtd = runtime->private_data; | |
214 | struct snd_soc_component *c = snd_soc_rtdcom_lookup(soc_prtd, DRV_NAME); | |
215 | struct q6asm_dai_data *pdata; | |
216 | int ret, i; | |
217 | ||
218 | pdata = snd_soc_component_get_drvdata(c); | |
219 | if (!pdata) | |
220 | return -EINVAL; | |
221 | ||
222 | if (!prtd || !prtd->audio_client) { | |
223 | pr_err("%s: private data null or audio client freed\n", | |
224 | __func__); | |
225 | return -EINVAL; | |
226 | } | |
227 | ||
228 | prtd->pcm_count = snd_pcm_lib_period_bytes(substream); | |
229 | prtd->pcm_irq_pos = 0; | |
230 | /* rate and channels are sent to audio driver */ | |
231 | if (prtd->state) { | |
232 | /* clear the previous setup if any */ | |
233 | q6asm_cmd(prtd->audio_client, CMD_CLOSE); | |
234 | q6asm_unmap_memory_regions(substream->stream, | |
235 | prtd->audio_client); | |
236 | q6routing_stream_close(soc_prtd->dai_link->id, | |
237 | substream->stream); | |
238 | } | |
239 | ||
240 | ret = q6asm_map_memory_regions(substream->stream, prtd->audio_client, | |
241 | prtd->phys, | |
242 | (prtd->pcm_size / prtd->periods), | |
243 | prtd->periods); | |
244 | ||
245 | if (ret < 0) { | |
246 | pr_err("Audio Start: Buffer Allocation failed rc = %d\n", | |
247 | ret); | |
248 | return -ENOMEM; | |
249 | } | |
250 | ||
251 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
252 | ret = q6asm_open_write(prtd->audio_client, FORMAT_LINEAR_PCM, | |
253 | prtd->bits_per_sample); | |
254 | } else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { | |
255 | ret = q6asm_open_read(prtd->audio_client, FORMAT_LINEAR_PCM, | |
256 | prtd->bits_per_sample); | |
257 | } | |
258 | ||
259 | if (ret < 0) { | |
260 | pr_err("%s: q6asm_open_write failed\n", __func__); | |
261 | q6asm_audio_client_free(prtd->audio_client); | |
262 | prtd->audio_client = NULL; | |
263 | return -ENOMEM; | |
264 | } | |
265 | ||
266 | prtd->session_id = q6asm_get_session_id(prtd->audio_client); | |
267 | ret = q6routing_stream_open(soc_prtd->dai_link->id, LEGACY_PCM_MODE, | |
268 | prtd->session_id, substream->stream); | |
269 | if (ret) { | |
270 | pr_err("%s: stream reg failed ret:%d\n", __func__, ret); | |
271 | return ret; | |
272 | } | |
273 | ||
274 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
275 | ret = q6asm_media_format_block_multi_ch_pcm( | |
276 | prtd->audio_client, runtime->rate, | |
277 | runtime->channels, NULL, | |
278 | prtd->bits_per_sample); | |
279 | } else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { | |
280 | ret = q6asm_enc_cfg_blk_pcm_format_support(prtd->audio_client, | |
281 | runtime->rate, runtime->channels, | |
282 | prtd->bits_per_sample); | |
283 | ||
284 | /* Queue the buffers */ | |
285 | for (i = 0; i < runtime->periods; i++) | |
286 | q6asm_read(prtd->audio_client); | |
287 | ||
288 | } | |
289 | if (ret < 0) | |
290 | pr_info("%s: CMD Format block failed\n", __func__); | |
291 | ||
292 | prtd->state = Q6ASM_STREAM_RUNNING; | |
293 | ||
294 | return 0; | |
295 | } | |
296 | ||
297 | static int q6asm_dai_trigger(struct snd_pcm_substream *substream, int cmd) | |
298 | { | |
299 | int ret = 0; | |
300 | struct snd_pcm_runtime *runtime = substream->runtime; | |
301 | struct q6asm_dai_rtd *prtd = runtime->private_data; | |
302 | ||
303 | switch (cmd) { | |
304 | case SNDRV_PCM_TRIGGER_START: | |
305 | case SNDRV_PCM_TRIGGER_RESUME: | |
306 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
307 | ret = q6asm_run_nowait(prtd->audio_client, 0, 0, 0); | |
308 | break; | |
309 | case SNDRV_PCM_TRIGGER_STOP: | |
310 | prtd->state = Q6ASM_STREAM_STOPPED; | |
311 | ret = q6asm_cmd_nowait(prtd->audio_client, CMD_EOS); | |
312 | break; | |
313 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
314 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
315 | ret = q6asm_cmd_nowait(prtd->audio_client, CMD_PAUSE); | |
316 | break; | |
317 | default: | |
318 | ret = -EINVAL; | |
319 | break; | |
320 | } | |
321 | ||
322 | return ret; | |
323 | } | |
324 | ||
325 | static int q6asm_dai_open(struct snd_pcm_substream *substream) | |
326 | { | |
327 | struct snd_pcm_runtime *runtime = substream->runtime; | |
328 | struct snd_soc_pcm_runtime *soc_prtd = substream->private_data; | |
329 | struct snd_soc_dai *cpu_dai = soc_prtd->cpu_dai; | |
330 | struct snd_soc_component *c = snd_soc_rtdcom_lookup(soc_prtd, DRV_NAME); | |
331 | struct q6asm_dai_rtd *prtd; | |
332 | struct q6asm_dai_data *pdata; | |
333 | struct device *dev = c->dev; | |
334 | int ret = 0; | |
335 | int stream_id; | |
336 | ||
337 | stream_id = cpu_dai->driver->id; | |
338 | ||
339 | pdata = snd_soc_component_get_drvdata(c); | |
340 | if (!pdata) { | |
341 | pr_err("Drv data not found ..\n"); | |
342 | return -EINVAL; | |
343 | } | |
344 | ||
345 | prtd = kzalloc(sizeof(struct q6asm_dai_rtd), GFP_KERNEL); | |
346 | if (prtd == NULL) | |
347 | return -ENOMEM; | |
348 | ||
349 | prtd->substream = substream; | |
350 | prtd->audio_client = q6asm_audio_client_alloc(dev, | |
351 | (q6asm_cb)event_handler, prtd, stream_id, | |
352 | LEGACY_PCM_MODE); | |
8e9f7265 | 353 | if (IS_ERR(prtd->audio_client)) { |
2a9e92d3 | 354 | pr_info("%s: Could not allocate memory\n", __func__); |
8e9f7265 | 355 | ret = PTR_ERR(prtd->audio_client); |
2a9e92d3 | 356 | kfree(prtd); |
8e9f7265 | 357 | return ret; |
2a9e92d3 SK |
358 | } |
359 | ||
360 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
361 | runtime->hw = q6asm_dai_hardware_playback; | |
362 | else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) | |
363 | runtime->hw = q6asm_dai_hardware_capture; | |
364 | ||
365 | ret = snd_pcm_hw_constraint_list(runtime, 0, | |
366 | SNDRV_PCM_HW_PARAM_RATE, | |
367 | &constraints_sample_rates); | |
368 | if (ret < 0) | |
369 | pr_info("snd_pcm_hw_constraint_list failed\n"); | |
370 | /* Ensure that buffer size is a multiple of period size */ | |
371 | ret = snd_pcm_hw_constraint_integer(runtime, | |
372 | SNDRV_PCM_HW_PARAM_PERIODS); | |
373 | if (ret < 0) | |
374 | pr_info("snd_pcm_hw_constraint_integer failed\n"); | |
375 | ||
376 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
377 | ret = snd_pcm_hw_constraint_minmax(runtime, | |
378 | SNDRV_PCM_HW_PARAM_BUFFER_BYTES, | |
379 | PLAYBACK_MIN_NUM_PERIODS * PLAYBACK_MIN_PERIOD_SIZE, | |
380 | PLAYBACK_MAX_NUM_PERIODS * PLAYBACK_MAX_PERIOD_SIZE); | |
381 | if (ret < 0) { | |
382 | pr_err("constraint for buffer bytes min max ret = %d\n", | |
383 | ret); | |
384 | } | |
385 | } | |
386 | ||
387 | ret = snd_pcm_hw_constraint_step(runtime, 0, | |
388 | SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32); | |
389 | if (ret < 0) { | |
390 | pr_err("constraint for period bytes step ret = %d\n", | |
391 | ret); | |
392 | } | |
393 | ret = snd_pcm_hw_constraint_step(runtime, 0, | |
394 | SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 32); | |
395 | if (ret < 0) { | |
396 | pr_err("constraint for buffer bytes step ret = %d\n", | |
397 | ret); | |
398 | } | |
399 | ||
400 | runtime->private_data = prtd; | |
401 | ||
402 | snd_soc_set_runtime_hwparams(substream, &q6asm_dai_hardware_playback); | |
403 | ||
404 | runtime->dma_bytes = q6asm_dai_hardware_playback.buffer_bytes_max; | |
405 | ||
406 | ||
407 | if (pdata->sid < 0) | |
408 | prtd->phys = substream->dma_buffer.addr; | |
409 | else | |
410 | prtd->phys = substream->dma_buffer.addr | (pdata->sid << 32); | |
411 | ||
412 | snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer); | |
413 | ||
414 | return 0; | |
415 | } | |
416 | ||
417 | static int q6asm_dai_close(struct snd_pcm_substream *substream) | |
418 | { | |
419 | struct snd_pcm_runtime *runtime = substream->runtime; | |
420 | struct snd_soc_pcm_runtime *soc_prtd = substream->private_data; | |
421 | struct q6asm_dai_rtd *prtd = runtime->private_data; | |
422 | ||
423 | if (prtd->audio_client) { | |
5dffc175 SK |
424 | if (prtd->state) |
425 | q6asm_cmd(prtd->audio_client, CMD_CLOSE); | |
426 | ||
2a9e92d3 SK |
427 | q6asm_unmap_memory_regions(substream->stream, |
428 | prtd->audio_client); | |
429 | q6asm_audio_client_free(prtd->audio_client); | |
430 | prtd->audio_client = NULL; | |
431 | } | |
432 | q6routing_stream_close(soc_prtd->dai_link->id, | |
433 | substream->stream); | |
434 | kfree(prtd); | |
435 | return 0; | |
436 | } | |
437 | ||
438 | static snd_pcm_uframes_t q6asm_dai_pointer(struct snd_pcm_substream *substream) | |
439 | { | |
440 | ||
441 | struct snd_pcm_runtime *runtime = substream->runtime; | |
442 | struct q6asm_dai_rtd *prtd = runtime->private_data; | |
443 | ||
444 | if (prtd->pcm_irq_pos >= prtd->pcm_size) | |
445 | prtd->pcm_irq_pos = 0; | |
446 | ||
447 | return bytes_to_frames(runtime, (prtd->pcm_irq_pos)); | |
448 | } | |
449 | ||
450 | static int q6asm_dai_mmap(struct snd_pcm_substream *substream, | |
451 | struct vm_area_struct *vma) | |
452 | { | |
453 | ||
454 | struct snd_pcm_runtime *runtime = substream->runtime; | |
455 | struct snd_soc_pcm_runtime *soc_prtd = substream->private_data; | |
456 | struct snd_soc_component *c = snd_soc_rtdcom_lookup(soc_prtd, DRV_NAME); | |
457 | struct device *dev = c->dev; | |
458 | ||
459 | return dma_mmap_coherent(dev, vma, | |
460 | runtime->dma_area, runtime->dma_addr, | |
461 | runtime->dma_bytes); | |
462 | } | |
463 | ||
464 | static int q6asm_dai_hw_params(struct snd_pcm_substream *substream, | |
465 | struct snd_pcm_hw_params *params) | |
466 | { | |
467 | struct snd_pcm_runtime *runtime = substream->runtime; | |
468 | struct q6asm_dai_rtd *prtd = runtime->private_data; | |
469 | ||
470 | prtd->pcm_size = params_buffer_bytes(params); | |
471 | prtd->periods = params_periods(params); | |
472 | ||
473 | switch (params_format(params)) { | |
474 | case SNDRV_PCM_FORMAT_S16_LE: | |
475 | prtd->bits_per_sample = 16; | |
476 | break; | |
477 | case SNDRV_PCM_FORMAT_S24_LE: | |
478 | prtd->bits_per_sample = 24; | |
479 | break; | |
480 | } | |
481 | ||
482 | return 0; | |
483 | } | |
484 | ||
485 | static struct snd_pcm_ops q6asm_dai_ops = { | |
486 | .open = q6asm_dai_open, | |
487 | .hw_params = q6asm_dai_hw_params, | |
488 | .close = q6asm_dai_close, | |
489 | .ioctl = snd_pcm_lib_ioctl, | |
490 | .prepare = q6asm_dai_prepare, | |
491 | .trigger = q6asm_dai_trigger, | |
492 | .pointer = q6asm_dai_pointer, | |
493 | .mmap = q6asm_dai_mmap, | |
494 | }; | |
495 | ||
22930c79 SK |
496 | static void compress_event_handler(uint32_t opcode, uint32_t token, |
497 | uint32_t *payload, void *priv) | |
498 | { | |
499 | struct q6asm_dai_rtd *prtd = priv; | |
500 | struct snd_compr_stream *substream = prtd->cstream; | |
501 | unsigned long flags; | |
502 | uint64_t avail; | |
503 | ||
504 | switch (opcode) { | |
505 | case ASM_CLIENT_EVENT_CMD_RUN_DONE: | |
506 | spin_lock_irqsave(&prtd->lock, flags); | |
507 | if (!prtd->bytes_sent) { | |
508 | q6asm_write_async(prtd->audio_client, prtd->pcm_count, | |
509 | 0, 0, NO_TIMESTAMP); | |
510 | prtd->bytes_sent += prtd->pcm_count; | |
511 | } | |
512 | ||
513 | spin_unlock_irqrestore(&prtd->lock, flags); | |
514 | break; | |
515 | ||
516 | case ASM_CLIENT_EVENT_CMD_EOS_DONE: | |
517 | prtd->state = Q6ASM_STREAM_STOPPED; | |
518 | break; | |
519 | ||
520 | case ASM_CLIENT_EVENT_DATA_WRITE_DONE: | |
521 | spin_lock_irqsave(&prtd->lock, flags); | |
522 | ||
523 | prtd->copied_total += prtd->pcm_count; | |
524 | snd_compr_fragment_elapsed(substream); | |
525 | ||
526 | if (prtd->state != Q6ASM_STREAM_RUNNING) { | |
527 | spin_unlock_irqrestore(&prtd->lock, flags); | |
528 | break; | |
529 | } | |
530 | ||
531 | avail = prtd->bytes_received - prtd->bytes_sent; | |
532 | ||
533 | if (avail >= prtd->pcm_count) { | |
534 | q6asm_write_async(prtd->audio_client, | |
535 | prtd->pcm_count, 0, 0, NO_TIMESTAMP); | |
536 | prtd->bytes_sent += prtd->pcm_count; | |
537 | } | |
538 | ||
539 | spin_unlock_irqrestore(&prtd->lock, flags); | |
540 | break; | |
541 | ||
542 | default: | |
543 | break; | |
544 | } | |
545 | } | |
546 | ||
547 | static int q6asm_dai_compr_open(struct snd_compr_stream *stream) | |
548 | { | |
549 | struct snd_soc_pcm_runtime *rtd = stream->private_data; | |
550 | struct snd_soc_component *c = snd_soc_rtdcom_lookup(rtd, DRV_NAME); | |
551 | struct snd_compr_runtime *runtime = stream->runtime; | |
552 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
553 | struct q6asm_dai_data *pdata; | |
554 | struct device *dev = c->dev; | |
555 | struct q6asm_dai_rtd *prtd; | |
556 | int stream_id, size, ret; | |
557 | ||
558 | stream_id = cpu_dai->driver->id; | |
559 | pdata = snd_soc_component_get_drvdata(c); | |
560 | if (!pdata) { | |
561 | dev_err(dev, "Drv data not found ..\n"); | |
562 | return -EINVAL; | |
563 | } | |
564 | ||
565 | prtd = kzalloc(sizeof(*prtd), GFP_KERNEL); | |
566 | if (!prtd) | |
567 | return -ENOMEM; | |
568 | ||
569 | prtd->cstream = stream; | |
570 | prtd->audio_client = q6asm_audio_client_alloc(dev, | |
571 | (q6asm_cb)compress_event_handler, | |
572 | prtd, stream_id, LEGACY_PCM_MODE); | |
3391034e | 573 | if (IS_ERR(prtd->audio_client)) { |
22930c79 | 574 | dev_err(dev, "Could not allocate memory\n"); |
3391034e | 575 | ret = PTR_ERR(prtd->audio_client); |
a41d9dbf | 576 | goto free_prtd; |
22930c79 SK |
577 | } |
578 | ||
579 | size = COMPR_PLAYBACK_MAX_FRAGMENT_SIZE * | |
580 | COMPR_PLAYBACK_MAX_NUM_FRAGMENTS; | |
581 | ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, dev, size, | |
582 | &prtd->dma_buffer); | |
583 | if (ret) { | |
584 | dev_err(dev, "Cannot allocate buffer(s)\n"); | |
a41d9dbf | 585 | goto free_client; |
22930c79 SK |
586 | } |
587 | ||
588 | if (pdata->sid < 0) | |
589 | prtd->phys = prtd->dma_buffer.addr; | |
590 | else | |
591 | prtd->phys = prtd->dma_buffer.addr | (pdata->sid << 32); | |
592 | ||
593 | snd_compr_set_runtime_buffer(stream, &prtd->dma_buffer); | |
594 | spin_lock_init(&prtd->lock); | |
595 | runtime->private_data = prtd; | |
596 | ||
597 | return 0; | |
a41d9dbf DC |
598 | |
599 | free_client: | |
600 | q6asm_audio_client_free(prtd->audio_client); | |
601 | free_prtd: | |
602 | kfree(prtd); | |
603 | ||
604 | return ret; | |
22930c79 SK |
605 | } |
606 | ||
607 | static int q6asm_dai_compr_free(struct snd_compr_stream *stream) | |
608 | { | |
609 | struct snd_compr_runtime *runtime = stream->runtime; | |
610 | struct q6asm_dai_rtd *prtd = runtime->private_data; | |
611 | struct snd_soc_pcm_runtime *rtd = stream->private_data; | |
612 | ||
613 | if (prtd->audio_client) { | |
614 | if (prtd->state) | |
615 | q6asm_cmd(prtd->audio_client, CMD_CLOSE); | |
616 | ||
617 | snd_dma_free_pages(&prtd->dma_buffer); | |
618 | q6asm_unmap_memory_regions(stream->direction, | |
619 | prtd->audio_client); | |
620 | q6asm_audio_client_free(prtd->audio_client); | |
621 | prtd->audio_client = NULL; | |
622 | } | |
623 | q6routing_stream_close(rtd->dai_link->id, stream->direction); | |
624 | kfree(prtd); | |
625 | ||
626 | return 0; | |
627 | } | |
628 | ||
629 | static int q6asm_dai_compr_set_params(struct snd_compr_stream *stream, | |
630 | struct snd_compr_params *params) | |
631 | { | |
632 | struct snd_compr_runtime *runtime = stream->runtime; | |
633 | struct q6asm_dai_rtd *prtd = runtime->private_data; | |
634 | struct snd_soc_pcm_runtime *rtd = stream->private_data; | |
635 | struct snd_soc_component *c = snd_soc_rtdcom_lookup(rtd, DRV_NAME); | |
636 | int dir = stream->direction; | |
637 | struct q6asm_dai_data *pdata; | |
638 | struct device *dev = c->dev; | |
639 | int ret; | |
640 | ||
641 | memcpy(&prtd->codec_param, params, sizeof(*params)); | |
642 | ||
643 | pdata = snd_soc_component_get_drvdata(c); | |
644 | if (!pdata) | |
645 | return -EINVAL; | |
646 | ||
647 | if (!prtd || !prtd->audio_client) { | |
648 | dev_err(dev, "private data null or audio client freed\n"); | |
649 | return -EINVAL; | |
650 | } | |
651 | ||
652 | prtd->periods = runtime->fragments; | |
653 | prtd->pcm_count = runtime->fragment_size; | |
654 | prtd->pcm_size = runtime->fragments * runtime->fragment_size; | |
655 | prtd->bits_per_sample = 16; | |
656 | if (dir == SND_COMPRESS_PLAYBACK) { | |
657 | ret = q6asm_open_write(prtd->audio_client, params->codec.id, | |
658 | prtd->bits_per_sample); | |
659 | ||
660 | if (ret < 0) { | |
661 | dev_err(dev, "q6asm_open_write failed\n"); | |
662 | q6asm_audio_client_free(prtd->audio_client); | |
663 | prtd->audio_client = NULL; | |
664 | return ret; | |
665 | } | |
666 | } | |
667 | ||
668 | prtd->session_id = q6asm_get_session_id(prtd->audio_client); | |
669 | ret = q6routing_stream_open(rtd->dai_link->id, LEGACY_PCM_MODE, | |
670 | prtd->session_id, dir); | |
671 | if (ret) { | |
672 | dev_err(dev, "Stream reg failed ret:%d\n", ret); | |
673 | return ret; | |
674 | } | |
675 | ||
676 | ret = q6asm_map_memory_regions(dir, prtd->audio_client, prtd->phys, | |
677 | (prtd->pcm_size / prtd->periods), | |
678 | prtd->periods); | |
679 | ||
680 | if (ret < 0) { | |
681 | dev_err(dev, "Buffer Mapping failed ret:%d\n", ret); | |
682 | return -ENOMEM; | |
683 | } | |
684 | ||
685 | prtd->state = Q6ASM_STREAM_RUNNING; | |
686 | ||
687 | return 0; | |
688 | } | |
689 | ||
690 | static int q6asm_dai_compr_trigger(struct snd_compr_stream *stream, int cmd) | |
691 | { | |
692 | struct snd_compr_runtime *runtime = stream->runtime; | |
693 | struct q6asm_dai_rtd *prtd = runtime->private_data; | |
694 | int ret = 0; | |
695 | ||
696 | switch (cmd) { | |
697 | case SNDRV_PCM_TRIGGER_START: | |
698 | case SNDRV_PCM_TRIGGER_RESUME: | |
699 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
700 | ret = q6asm_run_nowait(prtd->audio_client, 0, 0, 0); | |
701 | break; | |
702 | case SNDRV_PCM_TRIGGER_STOP: | |
703 | prtd->state = Q6ASM_STREAM_STOPPED; | |
704 | ret = q6asm_cmd_nowait(prtd->audio_client, CMD_EOS); | |
705 | break; | |
706 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
707 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
708 | ret = q6asm_cmd_nowait(prtd->audio_client, CMD_PAUSE); | |
709 | break; | |
710 | default: | |
711 | ret = -EINVAL; | |
712 | break; | |
713 | } | |
714 | ||
715 | return ret; | |
716 | } | |
717 | ||
718 | static int q6asm_dai_compr_pointer(struct snd_compr_stream *stream, | |
719 | struct snd_compr_tstamp *tstamp) | |
720 | { | |
721 | struct snd_compr_runtime *runtime = stream->runtime; | |
722 | struct q6asm_dai_rtd *prtd = runtime->private_data; | |
723 | unsigned long flags; | |
724 | ||
725 | spin_lock_irqsave(&prtd->lock, flags); | |
726 | ||
727 | tstamp->copied_total = prtd->copied_total; | |
728 | tstamp->byte_offset = prtd->copied_total % prtd->pcm_size; | |
729 | ||
730 | spin_unlock_irqrestore(&prtd->lock, flags); | |
731 | ||
732 | return 0; | |
733 | } | |
734 | ||
735 | static int q6asm_dai_compr_ack(struct snd_compr_stream *stream, | |
736 | size_t count) | |
737 | { | |
738 | struct snd_compr_runtime *runtime = stream->runtime; | |
739 | struct q6asm_dai_rtd *prtd = runtime->private_data; | |
740 | unsigned long flags; | |
741 | ||
742 | spin_lock_irqsave(&prtd->lock, flags); | |
743 | prtd->bytes_received += count; | |
744 | spin_unlock_irqrestore(&prtd->lock, flags); | |
745 | ||
746 | return count; | |
747 | } | |
748 | ||
749 | static int q6asm_dai_compr_mmap(struct snd_compr_stream *stream, | |
750 | struct vm_area_struct *vma) | |
751 | { | |
752 | struct snd_compr_runtime *runtime = stream->runtime; | |
753 | struct q6asm_dai_rtd *prtd = runtime->private_data; | |
754 | struct snd_soc_pcm_runtime *rtd = stream->private_data; | |
755 | struct snd_soc_component *c = snd_soc_rtdcom_lookup(rtd, DRV_NAME); | |
756 | struct device *dev = c->dev; | |
757 | ||
758 | return dma_mmap_coherent(dev, vma, | |
759 | prtd->dma_buffer.area, prtd->dma_buffer.addr, | |
760 | prtd->dma_buffer.bytes); | |
761 | } | |
762 | ||
763 | static int q6asm_dai_compr_get_caps(struct snd_compr_stream *stream, | |
764 | struct snd_compr_caps *caps) | |
765 | { | |
766 | caps->direction = SND_COMPRESS_PLAYBACK; | |
767 | caps->min_fragment_size = COMPR_PLAYBACK_MIN_FRAGMENT_SIZE; | |
768 | caps->max_fragment_size = COMPR_PLAYBACK_MAX_FRAGMENT_SIZE; | |
769 | caps->min_fragments = COMPR_PLAYBACK_MIN_NUM_FRAGMENTS; | |
770 | caps->max_fragments = COMPR_PLAYBACK_MAX_NUM_FRAGMENTS; | |
771 | caps->num_codecs = 1; | |
772 | caps->codecs[0] = SND_AUDIOCODEC_MP3; | |
773 | ||
774 | return 0; | |
775 | } | |
776 | ||
777 | static int q6asm_dai_compr_get_codec_caps(struct snd_compr_stream *stream, | |
778 | struct snd_compr_codec_caps *codec) | |
779 | { | |
780 | switch (codec->codec) { | |
781 | case SND_AUDIOCODEC_MP3: | |
782 | *codec = q6asm_compr_caps; | |
783 | break; | |
784 | default: | |
785 | break; | |
786 | } | |
787 | ||
788 | return 0; | |
789 | } | |
790 | ||
791 | static struct snd_compr_ops q6asm_dai_compr_ops = { | |
792 | .open = q6asm_dai_compr_open, | |
793 | .free = q6asm_dai_compr_free, | |
794 | .set_params = q6asm_dai_compr_set_params, | |
795 | .pointer = q6asm_dai_compr_pointer, | |
796 | .trigger = q6asm_dai_compr_trigger, | |
797 | .get_caps = q6asm_dai_compr_get_caps, | |
798 | .get_codec_caps = q6asm_dai_compr_get_codec_caps, | |
799 | .mmap = q6asm_dai_compr_mmap, | |
800 | .ack = q6asm_dai_compr_ack, | |
801 | }; | |
802 | ||
2a9e92d3 SK |
803 | static int q6asm_dai_pcm_new(struct snd_soc_pcm_runtime *rtd) |
804 | { | |
805 | struct snd_pcm_substream *psubstream, *csubstream; | |
806 | struct snd_soc_component *c = snd_soc_rtdcom_lookup(rtd, DRV_NAME); | |
807 | struct snd_pcm *pcm = rtd->pcm; | |
808 | struct device *dev; | |
809 | int size, ret; | |
810 | ||
811 | dev = c->dev; | |
812 | size = q6asm_dai_hardware_playback.buffer_bytes_max; | |
813 | psubstream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; | |
814 | if (psubstream) { | |
815 | ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, dev, size, | |
816 | &psubstream->dma_buffer); | |
817 | if (ret) { | |
818 | dev_err(dev, "Cannot allocate buffer(s)\n"); | |
819 | return ret; | |
820 | } | |
821 | } | |
822 | ||
823 | csubstream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; | |
824 | if (csubstream) { | |
825 | ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, dev, size, | |
826 | &csubstream->dma_buffer); | |
827 | if (ret) { | |
828 | dev_err(dev, "Cannot allocate buffer(s)\n"); | |
829 | if (psubstream) | |
830 | snd_dma_free_pages(&psubstream->dma_buffer); | |
831 | return ret; | |
832 | } | |
833 | } | |
834 | ||
0712e028 | 835 | return 0; |
2a9e92d3 SK |
836 | } |
837 | ||
838 | static void q6asm_dai_pcm_free(struct snd_pcm *pcm) | |
839 | { | |
840 | struct snd_pcm_substream *substream; | |
841 | int i; | |
842 | ||
843 | for (i = 0; i < ARRAY_SIZE(pcm->streams); i++) { | |
844 | substream = pcm->streams[i].substream; | |
845 | if (substream) { | |
846 | snd_dma_free_pages(&substream->dma_buffer); | |
847 | substream->dma_buffer.area = NULL; | |
848 | substream->dma_buffer.addr = 0; | |
849 | } | |
850 | } | |
851 | } | |
852 | ||
2a9e92d3 SK |
853 | static const struct snd_soc_component_driver q6asm_fe_dai_component = { |
854 | .name = DRV_NAME, | |
855 | .ops = &q6asm_dai_ops, | |
856 | .pcm_new = q6asm_dai_pcm_new, | |
857 | .pcm_free = q6asm_dai_pcm_free, | |
22930c79 | 858 | .compr_ops = &q6asm_dai_compr_ops, |
2a9e92d3 SK |
859 | }; |
860 | ||
861 | static struct snd_soc_dai_driver q6asm_fe_dais[] = { | |
862 | Q6ASM_FEDAI_DRIVER(1), | |
863 | Q6ASM_FEDAI_DRIVER(2), | |
864 | Q6ASM_FEDAI_DRIVER(3), | |
865 | Q6ASM_FEDAI_DRIVER(4), | |
866 | Q6ASM_FEDAI_DRIVER(5), | |
867 | Q6ASM_FEDAI_DRIVER(6), | |
868 | Q6ASM_FEDAI_DRIVER(7), | |
869 | Q6ASM_FEDAI_DRIVER(8), | |
870 | }; | |
871 | ||
22930c79 SK |
872 | static int of_q6asm_parse_dai_data(struct device *dev, |
873 | struct q6asm_dai_data *pdata) | |
874 | { | |
875 | static struct snd_soc_dai_driver *dai_drv; | |
876 | struct snd_soc_pcm_stream empty_stream; | |
877 | struct device_node *node; | |
878 | int ret, id, dir; | |
879 | ||
880 | memset(&empty_stream, 0, sizeof(empty_stream)); | |
881 | ||
882 | for_each_child_of_node(dev->of_node, node) { | |
883 | ret = of_property_read_u32(node, "reg", &id); | |
eef08e53 | 884 | if (ret || id >= MAX_SESSIONS || id < 0) { |
22930c79 SK |
885 | dev_err(dev, "valid dai id not found:%d\n", ret); |
886 | continue; | |
887 | } | |
888 | ||
889 | dai_drv = &q6asm_fe_dais[id]; | |
890 | ||
891 | ret = of_property_read_u32(node, "direction", &dir); | |
892 | if (ret) | |
893 | continue; | |
894 | ||
895 | if (dir == Q6ASM_DAI_RX) | |
896 | dai_drv->capture = empty_stream; | |
897 | else if (dir == Q6ASM_DAI_TX) | |
898 | dai_drv->playback = empty_stream; | |
899 | ||
900 | if (of_property_read_bool(node, "is-compress-dai")) | |
901 | dai_drv->compress_new = snd_soc_new_compress; | |
902 | } | |
903 | ||
904 | return 0; | |
905 | } | |
906 | ||
f924e4fd | 907 | static int q6asm_dai_probe(struct platform_device *pdev) |
2a9e92d3 | 908 | { |
f924e4fd | 909 | struct device *dev = &pdev->dev; |
2a9e92d3 SK |
910 | struct device_node *node = dev->of_node; |
911 | struct of_phandle_args args; | |
912 | struct q6asm_dai_data *pdata; | |
913 | int rc; | |
914 | ||
f924e4fd | 915 | pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); |
2a9e92d3 SK |
916 | if (!pdata) |
917 | return -ENOMEM; | |
918 | ||
919 | rc = of_parse_phandle_with_fixed_args(node, "iommus", 1, 0, &args); | |
920 | if (rc < 0) | |
921 | pdata->sid = -1; | |
922 | else | |
923 | pdata->sid = args.args[0] & SID_MASK_DEFAULT; | |
924 | ||
925 | dev_set_drvdata(dev, pdata); | |
926 | ||
22930c79 SK |
927 | of_q6asm_parse_dai_data(dev, pdata); |
928 | ||
f924e4fd | 929 | return devm_snd_soc_register_component(dev, &q6asm_fe_dai_component, |
2a9e92d3 SK |
930 | q6asm_fe_dais, |
931 | ARRAY_SIZE(q6asm_fe_dais)); | |
932 | } | |
2a9e92d3 | 933 | |
1ce09ef3 SK |
934 | static const struct of_device_id q6asm_dai_device_id[] = { |
935 | { .compatible = "qcom,q6asm-dais" }, | |
936 | {}, | |
937 | }; | |
938 | MODULE_DEVICE_TABLE(of, q6asm_dai_device_id); | |
939 | ||
2a9e92d3 SK |
940 | static struct platform_driver q6asm_dai_platform_driver = { |
941 | .driver = { | |
942 | .name = "q6asm-dai", | |
1ce09ef3 | 943 | .of_match_table = of_match_ptr(q6asm_dai_device_id), |
2a9e92d3 SK |
944 | }, |
945 | .probe = q6asm_dai_probe, | |
2a9e92d3 SK |
946 | }; |
947 | module_platform_driver(q6asm_dai_platform_driver); | |
948 | ||
949 | MODULE_DESCRIPTION("Q6ASM dai driver"); | |
950 | MODULE_LICENSE("GPL v2"); |