Commit | Line | Data |
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07539c1d | 1 | /* |
ba9c949f | 2 | * Renesas R-Car SRC support |
07539c1d KM |
3 | * |
4 | * Copyright (C) 2013 Renesas Solutions Corp. | |
5 | * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | #include "rsnd.h" | |
12 | ||
8aefda50 KM |
13 | #define SRC_NAME "src" |
14 | ||
cfcefe01 KM |
15 | /* SRCx_STATUS */ |
16 | #define OUF_SRCO ((1 << 12) | (1 << 13)) | |
17 | #define OUF_SRCI ((1 << 9) | (1 << 8)) | |
18 | ||
19 | /* SCU_SYSTEM_STATUS0/1 */ | |
20 | #define OUF_SRC(id) ((1 << (id + 16)) | (1 << id)) | |
21 | ||
ba9c949f | 22 | struct rsnd_src { |
07539c1d | 23 | struct rsnd_mod mod; |
940e9479 | 24 | struct rsnd_mod *dma; |
43cb6954 KM |
25 | struct rsnd_kctrl_cfg_s sen; /* sync convert enable */ |
26 | struct rsnd_kctrl_cfg_s sync; /* sync convert */ | |
3b7843ff | 27 | u32 convert_rate; /* sampling rate convert */ |
adf6a681 | 28 | int irq; |
07539c1d KM |
29 | }; |
30 | ||
ba9c949f | 31 | #define RSND_SRC_NAME_SIZE 16 |
374a5281 | 32 | |
adf6a681 | 33 | #define rsnd_src_get(priv, id) ((struct rsnd_src *)(priv->src) + id) |
232c00b6 | 34 | #define rsnd_src_to_dma(src) ((src)->dma) |
da599fd3 | 35 | #define rsnd_src_nr(priv) ((priv)->src_nr) |
43cb6954 | 36 | #define rsnd_enable_sync_convert(src) ((src)->sen.val) |
82e76ed3 | 37 | |
ba9c949f KM |
38 | #define rsnd_mod_to_src(_mod) \ |
39 | container_of((_mod), struct rsnd_src, mod) | |
39cf3c40 | 40 | |
ba9c949f | 41 | #define for_each_rsnd_src(pos, priv, i) \ |
39cf3c40 | 42 | for ((i) = 0; \ |
ba9c949f KM |
43 | ((i) < rsnd_src_nr(priv)) && \ |
44 | ((pos) = (struct rsnd_src *)(priv)->src + i); \ | |
39cf3c40 KM |
45 | i++) |
46 | ||
47 | ||
ef749400 KM |
48 | /* |
49 | * image of SRC (Sampling Rate Converter) | |
50 | * | |
51 | * 96kHz <-> +-----+ 48kHz +-----+ 48kHz +-------+ | |
52 | * 48kHz <-> | SRC | <------> | SSI | <-----> | codec | | |
53 | * 44.1kHz <-> +-----+ +-----+ +-------+ | |
54 | * ... | |
55 | * | |
56 | */ | |
374a5281 | 57 | |
c926b746 | 58 | /* |
ba9c949f | 59 | * src.c is caring... |
c926b746 KM |
60 | * |
61 | * Gen1 | |
62 | * | |
63 | * [mem] -> [SRU] -> [SSI] | |
64 | * |--------| | |
65 | * | |
66 | * Gen2 | |
67 | * | |
ba9c949f | 68 | * [mem] -> [SRC] -> [SSIU] -> [SSI] |
c926b746 KM |
69 | * |-----------------| |
70 | */ | |
71 | ||
98efeeae | 72 | static void rsnd_src_activation(struct rsnd_mod *mod) |
379febfd KM |
73 | { |
74 | rsnd_mod_write(mod, SRC_SWRSR, 0); | |
75 | rsnd_mod_write(mod, SRC_SWRSR, 1); | |
76 | } | |
77 | ||
475a361a KM |
78 | static void rsnd_src_halt(struct rsnd_mod *mod) |
79 | { | |
80 | rsnd_mod_write(mod, SRC_SRCIR, 1); | |
81 | rsnd_mod_write(mod, SRC_SWRSR, 0); | |
82 | } | |
83 | ||
9b99e9a7 KM |
84 | static struct dma_chan *rsnd_src_dma_req(struct rsnd_dai_stream *io, |
85 | struct rsnd_mod *mod) | |
72adc61f KM |
86 | { |
87 | struct rsnd_priv *priv = rsnd_mod_to_priv(mod); | |
72adc61f KM |
88 | int is_play = rsnd_io_is_play(io); |
89 | ||
90 | return rsnd_dma_request_channel(rsnd_src_of_node(priv), | |
91 | mod, | |
92 | is_play ? "rx" : "tx"); | |
93 | } | |
94 | ||
88c61cff KM |
95 | static u32 rsnd_src_convert_rate(struct rsnd_dai_stream *io, |
96 | struct rsnd_src *src) | |
43cb6954 | 97 | { |
43cb6954 KM |
98 | struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); |
99 | u32 convert_rate; | |
100 | ||
101 | if (!runtime) | |
102 | return 0; | |
103 | ||
104 | if (!rsnd_enable_sync_convert(src)) | |
105 | return src->convert_rate; | |
106 | ||
107 | convert_rate = src->sync.val; | |
108 | ||
109 | if (!convert_rate) | |
110 | convert_rate = src->convert_rate; | |
111 | ||
112 | if (!convert_rate) | |
113 | convert_rate = runtime->rate; | |
114 | ||
115 | return convert_rate; | |
116 | } | |
117 | ||
ba9c949f | 118 | unsigned int rsnd_src_get_ssi_rate(struct rsnd_priv *priv, |
374e5426 | 119 | struct rsnd_dai_stream *io, |
1b7b08ef KM |
120 | struct snd_pcm_runtime *runtime) |
121 | { | |
b1eac430 | 122 | struct rsnd_mod *src_mod = rsnd_io_to_mod_src(io); |
ba9c949f | 123 | struct rsnd_src *src; |
b1eac430 | 124 | unsigned int rate = 0; |
1b7b08ef | 125 | |
b1eac430 KM |
126 | if (src_mod) { |
127 | src = rsnd_mod_to_src(src_mod); | |
128 | ||
129 | /* | |
130 | * return convert rate if SRC is used, | |
131 | * otherwise, return runtime->rate as usual | |
132 | */ | |
88c61cff | 133 | rate = rsnd_src_convert_rate(io, src); |
b1eac430 | 134 | } |
1b7b08ef | 135 | |
1b7b08ef KM |
136 | if (!rate) |
137 | rate = runtime->rate; | |
138 | ||
139 | return rate; | |
140 | } | |
141 | ||
3b7843ff | 142 | static int rsnd_src_hw_params(struct rsnd_mod *mod, |
2c0fac19 | 143 | struct rsnd_dai_stream *io, |
3b7843ff KM |
144 | struct snd_pcm_substream *substream, |
145 | struct snd_pcm_hw_params *fe_params) | |
146 | { | |
147 | struct rsnd_src *src = rsnd_mod_to_src(mod); | |
148 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
149 | ||
3b7843ff KM |
150 | /* |
151 | * SRC assumes that it is used under DPCM if user want to use | |
152 | * sampling rate convert. Then, SRC should be FE. | |
153 | * And then, this function will be called *after* BE settings. | |
154 | * this means, each BE already has fixuped hw_params. | |
155 | * see | |
156 | * dpcm_fe_dai_hw_params() | |
157 | * dpcm_be_dai_hw_params() | |
158 | */ | |
159 | if (fe->dai_link->dynamic) { | |
160 | int stream = substream->stream; | |
161 | struct snd_soc_dpcm *dpcm; | |
162 | struct snd_pcm_hw_params *be_params; | |
163 | ||
164 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
165 | be_params = &dpcm->hw_params; | |
166 | ||
167 | if (params_rate(fe_params) != params_rate(be_params)) | |
168 | src->convert_rate = params_rate(be_params); | |
169 | } | |
170 | } | |
171 | ||
172 | return 0; | |
173 | } | |
174 | ||
75916f65 KM |
175 | static void rsnd_src_set_convert_rate(struct rsnd_dai_stream *io, |
176 | struct rsnd_mod *mod) | |
1b7b08ef | 177 | { |
75916f65 KM |
178 | struct rsnd_priv *priv = rsnd_mod_to_priv(mod); |
179 | struct device *dev = rsnd_priv_to_dev(priv); | |
180 | struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); | |
ba9c949f | 181 | struct rsnd_src *src = rsnd_mod_to_src(mod); |
75916f65 KM |
182 | u32 convert_rate = rsnd_src_convert_rate(io, src); |
183 | u32 ifscr, fsrate, adinr; | |
184 | u32 cr, route; | |
185 | u32 bsdsr, bsisr; | |
186 | uint ratio; | |
1b7b08ef | 187 | |
75916f65 KM |
188 | if (!runtime) |
189 | return; | |
43cb6954 | 190 | |
75916f65 KM |
191 | /* 6 - 1/6 are very enough ratio for SRC_BSDSR */ |
192 | if (!convert_rate) | |
193 | ratio = 0; | |
194 | else if (convert_rate > runtime->rate) | |
195 | ratio = 100 * convert_rate / runtime->rate; | |
196 | else | |
197 | ratio = 100 * runtime->rate / convert_rate; | |
1b7b08ef | 198 | |
75916f65 KM |
199 | if (ratio > 600) { |
200 | dev_err(dev, "FSO/FSI ratio error\n"); | |
201 | return; | |
202 | } | |
1b7b08ef | 203 | |
75916f65 KM |
204 | /* |
205 | * SRC_ADINR | |
206 | */ | |
c45f7263 KM |
207 | adinr = rsnd_get_adinr_bit(mod, io) | |
208 | rsnd_get_adinr_chan(mod, io); | |
1b7b08ef | 209 | |
75916f65 KM |
210 | /* |
211 | * SRC_IFSCR / SRC_IFSVR | |
212 | */ | |
213 | ifscr = 0; | |
214 | fsrate = 0; | |
215 | if (convert_rate) { | |
216 | ifscr = 1; | |
217 | fsrate = 0x0400000 / convert_rate * runtime->rate; | |
218 | } | |
cfcefe01 | 219 | |
75916f65 KM |
220 | /* |
221 | * SRC_SRCCR / SRC_ROUTE_MODE0 | |
222 | */ | |
223 | cr = 0x00011110; | |
224 | route = 0x0; | |
225 | if (convert_rate) { | |
226 | route = 0x1; | |
3b7843ff | 227 | |
75916f65 KM |
228 | if (rsnd_enable_sync_convert(src)) { |
229 | cr |= 0x1; | |
230 | route |= rsnd_io_is_play(io) ? | |
231 | (0x1 << 24) : (0x1 << 25); | |
232 | } | |
233 | } | |
43cb6954 | 234 | |
75916f65 KM |
235 | /* |
236 | * SRC_BSDSR / SRC_BSISR | |
237 | */ | |
238 | switch (rsnd_mod_id(mod)) { | |
239 | case 5: | |
240 | case 6: | |
241 | case 7: | |
242 | case 8: | |
243 | bsdsr = 0x02400000; /* 6 - 1/6 */ | |
244 | bsisr = 0x00100060; /* 6 - 1/6 */ | |
245 | break; | |
246 | default: | |
247 | bsdsr = 0x01800000; /* 6 - 1/6 */ | |
248 | bsisr = 0x00100060 ;/* 6 - 1/6 */ | |
249 | break; | |
250 | } | |
1b7b08ef | 251 | |
75916f65 KM |
252 | rsnd_mod_write(mod, SRC_SRCIR, 1); /* initialize */ |
253 | rsnd_mod_write(mod, SRC_ADINR, adinr); | |
254 | rsnd_mod_write(mod, SRC_IFSCR, ifscr); | |
255 | rsnd_mod_write(mod, SRC_IFSVR, fsrate); | |
256 | rsnd_mod_write(mod, SRC_SRCCR, cr); | |
257 | rsnd_mod_write(mod, SRC_BSDSR, bsdsr); | |
258 | rsnd_mod_write(mod, SRC_BSISR, bsisr); | |
259 | rsnd_mod_write(mod, SRC_SRCIR, 0); /* cancel initialize */ | |
1b7b08ef | 260 | |
75916f65 | 261 | rsnd_mod_write(mod, SRC_ROUTE_MODE0, route); |
bf4e8d7c KM |
262 | rsnd_mod_write(mod, SRC_I_BUSIF_MODE, 1); |
263 | rsnd_mod_write(mod, SRC_O_BUSIF_MODE, 1); | |
75916f65 | 264 | rsnd_mod_write(mod, SRC_BUSIF_DALIGN, rsnd_get_dalign(mod, io)); |
1b7b08ef | 265 | |
75916f65 KM |
266 | if (convert_rate) |
267 | rsnd_adg_set_convert_clk_gen2(mod, io, | |
268 | runtime->rate, | |
269 | convert_rate); | |
270 | else | |
271 | rsnd_adg_set_convert_timing_gen2(mod, io); | |
1b7b08ef KM |
272 | } |
273 | ||
75916f65 KM |
274 | #define rsnd_src_irq_enable(mod) rsnd_src_irq_ctrol(mod, 1) |
275 | #define rsnd_src_irq_disable(mod) rsnd_src_irq_ctrol(mod, 0) | |
276 | static void rsnd_src_irq_ctrol(struct rsnd_mod *mod, int enable) | |
cfcefe01 KM |
277 | { |
278 | struct rsnd_src *src = rsnd_mod_to_src(mod); | |
279 | u32 sys_int_val, int_val, sys_int_mask; | |
adf6a681 | 280 | int irq = src->irq; |
cfcefe01 KM |
281 | int id = rsnd_mod_id(mod); |
282 | ||
283 | sys_int_val = | |
284 | sys_int_mask = OUF_SRC(id); | |
285 | int_val = 0x3300; | |
286 | ||
287 | /* | |
288 | * IRQ is not supported on non-DT | |
289 | * see | |
75916f65 | 290 | * rsnd_src_probe_() |
cfcefe01 KM |
291 | */ |
292 | if ((irq <= 0) || !enable) { | |
293 | sys_int_val = 0; | |
294 | int_val = 0; | |
295 | } | |
296 | ||
1a1bf58a KM |
297 | /* |
298 | * WORKAROUND | |
299 | * | |
300 | * ignore over flow error when rsnd_enable_sync_convert() | |
301 | */ | |
302 | if (rsnd_enable_sync_convert(src)) | |
303 | sys_int_val = sys_int_val & 0xffff; | |
304 | ||
cfcefe01 KM |
305 | rsnd_mod_write(mod, SRC_INT_ENABLE0, int_val); |
306 | rsnd_mod_bset(mod, SCU_SYS_INT_EN0, sys_int_mask, sys_int_val); | |
307 | rsnd_mod_bset(mod, SCU_SYS_INT_EN1, sys_int_mask, sys_int_val); | |
308 | } | |
309 | ||
8cc225f7 | 310 | static void rsnd_src_status_clear(struct rsnd_mod *mod) |
cfcefe01 KM |
311 | { |
312 | u32 val = OUF_SRC(rsnd_mod_id(mod)); | |
313 | ||
314 | rsnd_mod_bset(mod, SCU_SYS_STATUS0, val, val); | |
315 | rsnd_mod_bset(mod, SCU_SYS_STATUS1, val, val); | |
316 | } | |
317 | ||
6a25c8da | 318 | static bool rsnd_src_error_occurred(struct rsnd_mod *mod) |
cfcefe01 | 319 | { |
1a1bf58a KM |
320 | struct rsnd_src *src = rsnd_mod_to_src(mod); |
321 | u32 val0, val1; | |
cfcefe01 KM |
322 | bool ret = false; |
323 | ||
1a1bf58a KM |
324 | val0 = val1 = OUF_SRC(rsnd_mod_id(mod)); |
325 | ||
326 | /* | |
327 | * WORKAROUND | |
328 | * | |
329 | * ignore over flow error when rsnd_enable_sync_convert() | |
330 | */ | |
331 | if (rsnd_enable_sync_convert(src)) | |
332 | val0 = val0 & 0xffff; | |
333 | ||
334 | if ((rsnd_mod_read(mod, SCU_SYS_STATUS0) & val0) || | |
6a25c8da | 335 | (rsnd_mod_read(mod, SCU_SYS_STATUS1) & val1)) |
cfcefe01 | 336 | ret = true; |
cfcefe01 | 337 | |
cfcefe01 KM |
338 | return ret; |
339 | } | |
340 | ||
75916f65 KM |
341 | static int rsnd_src_start(struct rsnd_mod *mod, |
342 | struct rsnd_dai_stream *io, | |
343 | struct rsnd_priv *priv) | |
cfcefe01 | 344 | { |
1a1bf58a KM |
345 | struct rsnd_src *src = rsnd_mod_to_src(mod); |
346 | u32 val; | |
347 | ||
348 | /* | |
349 | * WORKAROUND | |
350 | * | |
351 | * Enable SRC output if you want to use sync convert together with DVC | |
352 | */ | |
353 | val = (rsnd_io_to_mod_dvc(io) && !rsnd_enable_sync_convert(src)) ? | |
354 | 0x01 : 0x11; | |
cfcefe01 KM |
355 | |
356 | rsnd_mod_write(mod, SRC_CTRL, val); | |
357 | ||
cfcefe01 KM |
358 | return 0; |
359 | } | |
360 | ||
75916f65 KM |
361 | static int rsnd_src_stop(struct rsnd_mod *mod, |
362 | struct rsnd_dai_stream *io, | |
363 | struct rsnd_priv *priv) | |
cfcefe01 | 364 | { |
31739a68 | 365 | rsnd_mod_write(mod, SRC_CTRL, 0); |
cfcefe01 | 366 | |
75916f65 KM |
367 | return 0; |
368 | } | |
369 | ||
370 | static int rsnd_src_init(struct rsnd_mod *mod, | |
371 | struct rsnd_dai_stream *io, | |
372 | struct rsnd_priv *priv) | |
373 | { | |
374 | struct rsnd_src *src = rsnd_mod_to_src(mod); | |
cfcefe01 | 375 | |
75916f65 KM |
376 | rsnd_mod_power_on(mod); |
377 | ||
98efeeae | 378 | rsnd_src_activation(mod); |
75916f65 KM |
379 | |
380 | rsnd_src_set_convert_rate(io, mod); | |
381 | ||
8cc225f7 | 382 | rsnd_src_status_clear(mod); |
75916f65 KM |
383 | |
384 | rsnd_src_irq_enable(mod); | |
385 | ||
75916f65 KM |
386 | /* reset sync convert_rate */ |
387 | src->sync.val = 0; | |
388 | ||
389 | return 0; | |
cfcefe01 KM |
390 | } |
391 | ||
75916f65 KM |
392 | static int rsnd_src_quit(struct rsnd_mod *mod, |
393 | struct rsnd_dai_stream *io, | |
394 | struct rsnd_priv *priv) | |
b761bf27 | 395 | { |
75916f65 | 396 | struct rsnd_src *src = rsnd_mod_to_src(mod); |
75916f65 KM |
397 | |
398 | rsnd_src_irq_disable(mod); | |
399 | ||
475a361a KM |
400 | rsnd_src_halt(mod); |
401 | ||
75916f65 KM |
402 | rsnd_mod_power_off(mod); |
403 | ||
75916f65 KM |
404 | src->convert_rate = 0; |
405 | ||
406 | /* reset sync convert_rate */ | |
407 | src->sync.val = 0; | |
408 | ||
409 | return 0; | |
b761bf27 KM |
410 | } |
411 | ||
75916f65 KM |
412 | static void __rsnd_src_interrupt(struct rsnd_mod *mod, |
413 | struct rsnd_dai_stream *io) | |
cfcefe01 | 414 | { |
02299d98 | 415 | struct rsnd_priv *priv = rsnd_mod_to_priv(mod); |
6a25c8da | 416 | bool stop = false; |
02299d98 KM |
417 | |
418 | spin_lock(&priv->lock); | |
cfcefe01 | 419 | |
02299d98 | 420 | /* ignore all cases if not working */ |
d5bbe7de | 421 | if (!rsnd_io_is_working(io)) |
75916f65 | 422 | goto rsnd_src_interrupt_out; |
cfcefe01 | 423 | |
6a25c8da KM |
424 | if (rsnd_src_error_occurred(mod)) |
425 | stop = true; | |
88c61cff | 426 | |
8cc225f7 | 427 | rsnd_src_status_clear(mod); |
75916f65 | 428 | rsnd_src_interrupt_out: |
8cc225f7 | 429 | |
02299d98 | 430 | spin_unlock(&priv->lock); |
6a25c8da KM |
431 | |
432 | if (stop) | |
433 | snd_pcm_stop_xrun(io->substream); | |
88c61cff KM |
434 | } |
435 | ||
75916f65 | 436 | static irqreturn_t rsnd_src_interrupt(int irq, void *data) |
88c61cff KM |
437 | { |
438 | struct rsnd_mod *mod = data; | |
439 | ||
75916f65 | 440 | rsnd_mod_interrupt(mod, __rsnd_src_interrupt); |
cfcefe01 KM |
441 | |
442 | return IRQ_HANDLED; | |
443 | } | |
444 | ||
75916f65 KM |
445 | static int rsnd_src_probe_(struct rsnd_mod *mod, |
446 | struct rsnd_dai_stream *io, | |
447 | struct rsnd_priv *priv) | |
76c6fb5c | 448 | { |
ba9c949f | 449 | struct rsnd_src *src = rsnd_mod_to_src(mod); |
76c6fb5c | 450 | struct device *dev = rsnd_priv_to_dev(priv); |
adf6a681 | 451 | int irq = src->irq; |
76c6fb5c | 452 | int ret; |
76c6fb5c | 453 | |
cfcefe01 KM |
454 | if (irq > 0) { |
455 | /* | |
456 | * IRQ is not supported on non-DT | |
457 | * see | |
75916f65 | 458 | * rsnd_src_irq_enable() |
cfcefe01 KM |
459 | */ |
460 | ret = devm_request_irq(dev, irq, | |
75916f65 | 461 | rsnd_src_interrupt, |
cfcefe01 KM |
462 | IRQF_SHARED, |
463 | dev_name(dev), mod); | |
464 | if (ret) | |
b543b52a | 465 | return ret; |
cfcefe01 KM |
466 | } |
467 | ||
355cb84f | 468 | ret = rsnd_dma_attach(io, mod, &src->dma, 0); |
8aefda50 | 469 | |
76c6fb5c KM |
470 | return ret; |
471 | } | |
472 | ||
75916f65 | 473 | static int rsnd_src_pcm_new(struct rsnd_mod *mod, |
2c0fac19 | 474 | struct rsnd_dai_stream *io, |
43cb6954 KM |
475 | struct snd_soc_pcm_runtime *rtd) |
476 | { | |
43cb6954 KM |
477 | struct rsnd_dai *rdai = rsnd_io_to_rdai(io); |
478 | struct rsnd_src *src = rsnd_mod_to_src(mod); | |
479 | int ret; | |
480 | ||
481 | /* | |
482 | * enable SRC sync convert if possible | |
483 | */ | |
484 | ||
43cb6954 KM |
485 | /* |
486 | * SRC sync convert needs clock master | |
487 | */ | |
488 | if (!rsnd_rdai_is_clk_master(rdai)) | |
489 | return 0; | |
490 | ||
43cb6954 KM |
491 | /* |
492 | * enable sync convert | |
493 | */ | |
b65a7ccc | 494 | ret = rsnd_kctrl_new_s(mod, io, rtd, |
43cb6954 KM |
495 | rsnd_io_is_play(io) ? |
496 | "SRC Out Rate Switch" : | |
497 | "SRC In Rate Switch", | |
75916f65 | 498 | rsnd_src_set_convert_rate, |
43cb6954 KM |
499 | &src->sen, 1); |
500 | if (ret < 0) | |
501 | return ret; | |
502 | ||
b65a7ccc | 503 | ret = rsnd_kctrl_new_s(mod, io, rtd, |
43cb6954 KM |
504 | rsnd_io_is_play(io) ? |
505 | "SRC Out Rate" : | |
506 | "SRC In Rate", | |
75916f65 | 507 | rsnd_src_set_convert_rate, |
43cb6954 KM |
508 | &src->sync, 192000); |
509 | ||
510 | return ret; | |
511 | } | |
512 | ||
75916f65 | 513 | static struct rsnd_mod_ops rsnd_src_ops = { |
8aefda50 | 514 | .name = SRC_NAME, |
72adc61f | 515 | .dma_req = rsnd_src_dma_req, |
75916f65 KM |
516 | .probe = rsnd_src_probe_, |
517 | .init = rsnd_src_init, | |
518 | .quit = rsnd_src_quit, | |
519 | .start = rsnd_src_start, | |
520 | .stop = rsnd_src_stop, | |
3b7843ff | 521 | .hw_params = rsnd_src_hw_params, |
75916f65 | 522 | .pcm_new = rsnd_src_pcm_new, |
629509c5 KM |
523 | }; |
524 | ||
ba9c949f | 525 | struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id) |
07539c1d | 526 | { |
ba9c949f | 527 | if (WARN_ON(id < 0 || id >= rsnd_src_nr(priv))) |
8b14719b | 528 | id = 0; |
07539c1d | 529 | |
adf6a681 | 530 | return rsnd_mod_get(rsnd_src_get(priv, id)); |
90e8e50f KM |
531 | } |
532 | ||
2ea6b074 | 533 | int rsnd_src_probe(struct rsnd_priv *priv) |
07539c1d | 534 | { |
adf6a681 KM |
535 | struct device_node *node; |
536 | struct device_node *np; | |
07539c1d | 537 | struct device *dev = rsnd_priv_to_dev(priv); |
ba9c949f | 538 | struct rsnd_src *src; |
ef749400 | 539 | struct clk *clk; |
ba9c949f | 540 | char name[RSND_SRC_NAME_SIZE]; |
2f78dd7f | 541 | int i, nr, ret; |
07539c1d | 542 | |
e8e7b7bd KM |
543 | /* This driver doesn't support Gen1 at this point */ |
544 | if (rsnd_is_gen1(priv)) | |
545 | return 0; | |
033e7ed8 | 546 | |
adf6a681 KM |
547 | node = rsnd_src_of_node(priv); |
548 | if (!node) | |
549 | return 0; /* not used is not error */ | |
90e8e50f | 550 | |
adf6a681 KM |
551 | nr = of_get_child_count(node); |
552 | if (!nr) { | |
553 | ret = -EINVAL; | |
554 | goto rsnd_src_probe_done; | |
555 | } | |
389933d9 | 556 | |
ba9c949f | 557 | src = devm_kzalloc(dev, sizeof(*src) * nr, GFP_KERNEL); |
adf6a681 KM |
558 | if (!src) { |
559 | ret = -ENOMEM; | |
560 | goto rsnd_src_probe_done; | |
561 | } | |
07539c1d | 562 | |
ba9c949f KM |
563 | priv->src_nr = nr; |
564 | priv->src = src; | |
07539c1d | 565 | |
adf6a681 KM |
566 | i = 0; |
567 | for_each_child_of_node(node, np) { | |
568 | src = rsnd_src_get(priv, i); | |
569 | ||
8aefda50 KM |
570 | snprintf(name, RSND_SRC_NAME_SIZE, "%s.%d", |
571 | SRC_NAME, i); | |
ef749400 | 572 | |
adf6a681 KM |
573 | src->irq = irq_of_parse_and_map(np, 0); |
574 | if (!src->irq) { | |
575 | ret = -EINVAL; | |
576 | goto rsnd_src_probe_done; | |
577 | } | |
ef749400 | 578 | |
adf6a681 KM |
579 | clk = devm_clk_get(dev, name); |
580 | if (IS_ERR(clk)) { | |
581 | ret = PTR_ERR(clk); | |
582 | goto rsnd_src_probe_done; | |
583 | } | |
07539c1d | 584 | |
e8e7b7bd | 585 | ret = rsnd_mod_init(priv, rsnd_mod_get(src), |
5ba17b42 KM |
586 | &rsnd_src_ops, clk, rsnd_mod_get_status, |
587 | RSND_MOD_SRC, i); | |
2f78dd7f | 588 | if (ret) |
adf6a681 KM |
589 | goto rsnd_src_probe_done; |
590 | ||
591 | i++; | |
374a5281 | 592 | } |
07539c1d | 593 | |
adf6a681 KM |
594 | ret = 0; |
595 | ||
596 | rsnd_src_probe_done: | |
597 | of_node_put(node); | |
598 | ||
599 | return ret; | |
07539c1d | 600 | } |
2f78dd7f | 601 | |
2ea6b074 | 602 | void rsnd_src_remove(struct rsnd_priv *priv) |
2f78dd7f KM |
603 | { |
604 | struct rsnd_src *src; | |
605 | int i; | |
606 | ||
607 | for_each_rsnd_src(src, priv, i) { | |
b76e218a | 608 | rsnd_mod_quit(rsnd_mod_get(src)); |
2f78dd7f KM |
609 | } |
610 | } |