Commit | Line | Data |
---|---|---|
5033f43c | 1 | /* sound/soc/samsung/i2s.c |
1c7ac018 JB |
2 | * |
3 | * ALSA SoC Audio Layer - Samsung I2S Controller driver | |
4 | * | |
5 | * Copyright (c) 2010 Samsung Electronics Co. Ltd. | |
df8ad335 | 6 | * Jaswinder Singh <jassisinghbrar@gmail.com> |
1c7ac018 JB |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License version 2 as | |
10 | * published by the Free Software Foundation. | |
11 | */ | |
12 | ||
13 | #include <linux/delay.h> | |
14 | #include <linux/slab.h> | |
15 | #include <linux/clk.h> | |
16 | #include <linux/io.h> | |
da155d5b | 17 | #include <linux/module.h> |
40476f61 PV |
18 | #include <linux/of.h> |
19 | #include <linux/of_gpio.h> | |
c5cf4dbc | 20 | #include <linux/pm_runtime.h> |
1c7ac018 | 21 | |
1c7ac018 | 22 | #include <sound/soc.h> |
0378b6ac | 23 | #include <sound/pcm_params.h> |
1c7ac018 | 24 | |
40476f61 PV |
25 | #include <mach/dma.h> |
26 | ||
436d42c6 | 27 | #include <linux/platform_data/asoc-s3c.h> |
1c7ac018 JB |
28 | |
29 | #include "dma.h" | |
61100f40 | 30 | #include "idma.h" |
1c7ac018 | 31 | #include "i2s.h" |
172a453d | 32 | #include "i2s-regs.h" |
1c7ac018 JB |
33 | |
34 | #define msecs_to_loops(t) (loops_per_jiffy / 1000 * HZ * t) | |
35 | ||
7c62eebb PV |
36 | enum samsung_dai_type { |
37 | TYPE_PRI, | |
38 | TYPE_SEC, | |
39 | }; | |
40 | ||
40476f61 PV |
41 | struct samsung_i2s_dai_data { |
42 | int dai_type; | |
43 | }; | |
44 | ||
1c7ac018 JB |
45 | struct i2s_dai { |
46 | /* Platform device for this DAI */ | |
47 | struct platform_device *pdev; | |
48 | /* IOREMAP'd SFRs */ | |
49 | void __iomem *addr; | |
50 | /* Physical base address of SFRs */ | |
51 | u32 base; | |
52 | /* Rate of RCLK source clock */ | |
53 | unsigned long rclk_srcrate; | |
54 | /* Frame Clock */ | |
55 | unsigned frmclk; | |
56 | /* | |
57 | * Specifically requested RCLK,BCLK by MACHINE Driver. | |
58 | * 0 indicates CPU driver is free to choose any value. | |
59 | */ | |
60 | unsigned rfs, bfs; | |
61 | /* I2S Controller's core clock */ | |
62 | struct clk *clk; | |
63 | /* Clock for generating I2S signals */ | |
64 | struct clk *op_clk; | |
1c7ac018 JB |
65 | /* Pointer to the Primary_Fifo if this is Sec_Fifo, NULL otherwise */ |
66 | struct i2s_dai *pri_dai; | |
67 | /* Pointer to the Secondary_Fifo if it has one, NULL otherwise */ | |
68 | struct i2s_dai *sec_dai; | |
69 | #define DAI_OPENED (1 << 0) /* Dai is opened */ | |
70 | #define DAI_MANAGER (1 << 1) /* Dai is the manager */ | |
71 | unsigned mode; | |
72 | /* Driver for this DAI */ | |
73 | struct snd_soc_dai_driver i2s_dai_drv; | |
74 | /* DMA parameters */ | |
75 | struct s3c_dma_params dma_playback; | |
76 | struct s3c_dma_params dma_capture; | |
61100f40 | 77 | struct s3c_dma_params idma_playback; |
1c7ac018 JB |
78 | u32 quirks; |
79 | u32 suspend_i2smod; | |
80 | u32 suspend_i2scon; | |
81 | u32 suspend_i2spsr; | |
40476f61 | 82 | unsigned long gpios[7]; /* i2s gpio line numbers */ |
1c7ac018 JB |
83 | }; |
84 | ||
85 | /* Lock for cross i/f checks */ | |
86 | static DEFINE_SPINLOCK(lock); | |
87 | ||
88 | /* If this is the 'overlay' stereo DAI */ | |
89 | static inline bool is_secondary(struct i2s_dai *i2s) | |
90 | { | |
91 | return i2s->pri_dai ? true : false; | |
92 | } | |
93 | ||
94 | /* If operating in SoC-Slave mode */ | |
95 | static inline bool is_slave(struct i2s_dai *i2s) | |
96 | { | |
97 | return (readl(i2s->addr + I2SMOD) & MOD_SLAVE) ? true : false; | |
98 | } | |
99 | ||
100 | /* If this interface of the controller is transmitting data */ | |
101 | static inline bool tx_active(struct i2s_dai *i2s) | |
102 | { | |
103 | u32 active; | |
104 | ||
105 | if (!i2s) | |
106 | return false; | |
107 | ||
33195500 | 108 | active = readl(i2s->addr + I2SCON); |
1c7ac018 JB |
109 | |
110 | if (is_secondary(i2s)) | |
111 | active &= CON_TXSDMA_ACTIVE; | |
112 | else | |
113 | active &= CON_TXDMA_ACTIVE; | |
114 | ||
115 | return active ? true : false; | |
116 | } | |
117 | ||
118 | /* If the other interface of the controller is transmitting data */ | |
119 | static inline bool other_tx_active(struct i2s_dai *i2s) | |
120 | { | |
121 | struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai; | |
122 | ||
123 | return tx_active(other); | |
124 | } | |
125 | ||
126 | /* If any interface of the controller is transmitting data */ | |
127 | static inline bool any_tx_active(struct i2s_dai *i2s) | |
128 | { | |
129 | return tx_active(i2s) || other_tx_active(i2s); | |
130 | } | |
131 | ||
132 | /* If this interface of the controller is receiving data */ | |
133 | static inline bool rx_active(struct i2s_dai *i2s) | |
134 | { | |
135 | u32 active; | |
136 | ||
137 | if (!i2s) | |
138 | return false; | |
139 | ||
33195500 | 140 | active = readl(i2s->addr + I2SCON) & CON_RXDMA_ACTIVE; |
1c7ac018 JB |
141 | |
142 | return active ? true : false; | |
143 | } | |
144 | ||
145 | /* If the other interface of the controller is receiving data */ | |
146 | static inline bool other_rx_active(struct i2s_dai *i2s) | |
147 | { | |
148 | struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai; | |
149 | ||
150 | return rx_active(other); | |
151 | } | |
152 | ||
153 | /* If any interface of the controller is receiving data */ | |
154 | static inline bool any_rx_active(struct i2s_dai *i2s) | |
155 | { | |
156 | return rx_active(i2s) || other_rx_active(i2s); | |
157 | } | |
158 | ||
159 | /* If the other DAI is transmitting or receiving data */ | |
160 | static inline bool other_active(struct i2s_dai *i2s) | |
161 | { | |
162 | return other_rx_active(i2s) || other_tx_active(i2s); | |
163 | } | |
164 | ||
165 | /* If this DAI is transmitting or receiving data */ | |
166 | static inline bool this_active(struct i2s_dai *i2s) | |
167 | { | |
168 | return tx_active(i2s) || rx_active(i2s); | |
169 | } | |
170 | ||
171 | /* If the controller is active anyway */ | |
172 | static inline bool any_active(struct i2s_dai *i2s) | |
173 | { | |
174 | return this_active(i2s) || other_active(i2s); | |
175 | } | |
176 | ||
177 | static inline struct i2s_dai *to_info(struct snd_soc_dai *dai) | |
178 | { | |
179 | return snd_soc_dai_get_drvdata(dai); | |
180 | } | |
181 | ||
182 | static inline bool is_opened(struct i2s_dai *i2s) | |
183 | { | |
184 | if (i2s && (i2s->mode & DAI_OPENED)) | |
185 | return true; | |
186 | else | |
187 | return false; | |
188 | } | |
189 | ||
190 | static inline bool is_manager(struct i2s_dai *i2s) | |
191 | { | |
192 | if (is_opened(i2s) && (i2s->mode & DAI_MANAGER)) | |
193 | return true; | |
194 | else | |
195 | return false; | |
196 | } | |
197 | ||
198 | /* Read RCLK of I2S (in multiples of LRCLK) */ | |
199 | static inline unsigned get_rfs(struct i2s_dai *i2s) | |
200 | { | |
201 | u32 rfs = (readl(i2s->addr + I2SMOD) >> 3) & 0x3; | |
202 | ||
203 | switch (rfs) { | |
204 | case 3: return 768; | |
205 | case 2: return 384; | |
206 | case 1: return 512; | |
207 | default: return 256; | |
208 | } | |
209 | } | |
210 | ||
211 | /* Write RCLK of I2S (in multiples of LRCLK) */ | |
212 | static inline void set_rfs(struct i2s_dai *i2s, unsigned rfs) | |
213 | { | |
214 | u32 mod = readl(i2s->addr + I2SMOD); | |
215 | ||
216 | mod &= ~MOD_RCLK_MASK; | |
217 | ||
218 | switch (rfs) { | |
219 | case 768: | |
220 | mod |= MOD_RCLK_768FS; | |
221 | break; | |
222 | case 512: | |
223 | mod |= MOD_RCLK_512FS; | |
224 | break; | |
225 | case 384: | |
226 | mod |= MOD_RCLK_384FS; | |
227 | break; | |
228 | default: | |
229 | mod |= MOD_RCLK_256FS; | |
230 | break; | |
231 | } | |
232 | ||
233 | writel(mod, i2s->addr + I2SMOD); | |
234 | } | |
235 | ||
236 | /* Read Bit-Clock of I2S (in multiples of LRCLK) */ | |
237 | static inline unsigned get_bfs(struct i2s_dai *i2s) | |
238 | { | |
239 | u32 bfs = (readl(i2s->addr + I2SMOD) >> 1) & 0x3; | |
240 | ||
241 | switch (bfs) { | |
242 | case 3: return 24; | |
243 | case 2: return 16; | |
244 | case 1: return 48; | |
245 | default: return 32; | |
246 | } | |
247 | } | |
248 | ||
249 | /* Write Bit-Clock of I2S (in multiples of LRCLK) */ | |
250 | static inline void set_bfs(struct i2s_dai *i2s, unsigned bfs) | |
251 | { | |
252 | u32 mod = readl(i2s->addr + I2SMOD); | |
253 | ||
254 | mod &= ~MOD_BCLK_MASK; | |
255 | ||
256 | switch (bfs) { | |
257 | case 48: | |
258 | mod |= MOD_BCLK_48FS; | |
259 | break; | |
260 | case 32: | |
261 | mod |= MOD_BCLK_32FS; | |
262 | break; | |
263 | case 24: | |
264 | mod |= MOD_BCLK_24FS; | |
265 | break; | |
266 | case 16: | |
267 | mod |= MOD_BCLK_16FS; | |
268 | break; | |
269 | default: | |
270 | dev_err(&i2s->pdev->dev, "Wrong BCLK Divider!\n"); | |
271 | return; | |
272 | } | |
273 | ||
274 | writel(mod, i2s->addr + I2SMOD); | |
275 | } | |
276 | ||
277 | /* Sample-Size */ | |
278 | static inline int get_blc(struct i2s_dai *i2s) | |
279 | { | |
280 | int blc = readl(i2s->addr + I2SMOD); | |
281 | ||
282 | blc = (blc >> 13) & 0x3; | |
283 | ||
284 | switch (blc) { | |
285 | case 2: return 24; | |
286 | case 1: return 8; | |
287 | default: return 16; | |
288 | } | |
289 | } | |
290 | ||
291 | /* TX Channel Control */ | |
292 | static void i2s_txctrl(struct i2s_dai *i2s, int on) | |
293 | { | |
294 | void __iomem *addr = i2s->addr; | |
295 | u32 con = readl(addr + I2SCON); | |
296 | u32 mod = readl(addr + I2SMOD) & ~MOD_MASK; | |
297 | ||
298 | if (on) { | |
299 | con |= CON_ACTIVE; | |
300 | con &= ~CON_TXCH_PAUSE; | |
301 | ||
302 | if (is_secondary(i2s)) { | |
303 | con |= CON_TXSDMA_ACTIVE; | |
304 | con &= ~CON_TXSDMA_PAUSE; | |
305 | } else { | |
306 | con |= CON_TXDMA_ACTIVE; | |
307 | con &= ~CON_TXDMA_PAUSE; | |
308 | } | |
309 | ||
310 | if (any_rx_active(i2s)) | |
311 | mod |= MOD_TXRX; | |
312 | else | |
313 | mod |= MOD_TXONLY; | |
314 | } else { | |
315 | if (is_secondary(i2s)) { | |
316 | con |= CON_TXSDMA_PAUSE; | |
317 | con &= ~CON_TXSDMA_ACTIVE; | |
318 | } else { | |
319 | con |= CON_TXDMA_PAUSE; | |
320 | con &= ~CON_TXDMA_ACTIVE; | |
321 | } | |
322 | ||
323 | if (other_tx_active(i2s)) { | |
324 | writel(con, addr + I2SCON); | |
325 | return; | |
326 | } | |
327 | ||
328 | con |= CON_TXCH_PAUSE; | |
329 | ||
330 | if (any_rx_active(i2s)) | |
331 | mod |= MOD_RXONLY; | |
332 | else | |
333 | con &= ~CON_ACTIVE; | |
334 | } | |
335 | ||
336 | writel(mod, addr + I2SMOD); | |
337 | writel(con, addr + I2SCON); | |
338 | } | |
339 | ||
340 | /* RX Channel Control */ | |
341 | static void i2s_rxctrl(struct i2s_dai *i2s, int on) | |
342 | { | |
343 | void __iomem *addr = i2s->addr; | |
344 | u32 con = readl(addr + I2SCON); | |
345 | u32 mod = readl(addr + I2SMOD) & ~MOD_MASK; | |
346 | ||
347 | if (on) { | |
348 | con |= CON_RXDMA_ACTIVE | CON_ACTIVE; | |
349 | con &= ~(CON_RXDMA_PAUSE | CON_RXCH_PAUSE); | |
350 | ||
351 | if (any_tx_active(i2s)) | |
352 | mod |= MOD_TXRX; | |
353 | else | |
354 | mod |= MOD_RXONLY; | |
355 | } else { | |
356 | con |= CON_RXDMA_PAUSE | CON_RXCH_PAUSE; | |
357 | con &= ~CON_RXDMA_ACTIVE; | |
358 | ||
359 | if (any_tx_active(i2s)) | |
360 | mod |= MOD_TXONLY; | |
361 | else | |
362 | con &= ~CON_ACTIVE; | |
363 | } | |
364 | ||
365 | writel(mod, addr + I2SMOD); | |
366 | writel(con, addr + I2SCON); | |
367 | } | |
368 | ||
369 | /* Flush FIFO of an interface */ | |
370 | static inline void i2s_fifo(struct i2s_dai *i2s, u32 flush) | |
371 | { | |
372 | void __iomem *fic; | |
373 | u32 val; | |
374 | ||
375 | if (!i2s) | |
376 | return; | |
377 | ||
378 | if (is_secondary(i2s)) | |
379 | fic = i2s->addr + I2SFICS; | |
380 | else | |
381 | fic = i2s->addr + I2SFIC; | |
382 | ||
383 | /* Flush the FIFO */ | |
384 | writel(readl(fic) | flush, fic); | |
385 | ||
386 | /* Be patient */ | |
387 | val = msecs_to_loops(1) / 1000; /* 1 usec */ | |
388 | while (--val) | |
389 | cpu_relax(); | |
390 | ||
391 | writel(readl(fic) & ~flush, fic); | |
392 | } | |
393 | ||
394 | static int i2s_set_sysclk(struct snd_soc_dai *dai, | |
395 | int clk_id, unsigned int rfs, int dir) | |
396 | { | |
397 | struct i2s_dai *i2s = to_info(dai); | |
398 | struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai; | |
399 | u32 mod = readl(i2s->addr + I2SMOD); | |
400 | ||
401 | switch (clk_id) { | |
402 | case SAMSUNG_I2S_CDCLK: | |
403 | /* Shouldn't matter in GATING(CLOCK_IN) mode */ | |
404 | if (dir == SND_SOC_CLOCK_IN) | |
405 | rfs = 0; | |
406 | ||
407 | if ((rfs && other->rfs && (other->rfs != rfs)) || | |
408 | (any_active(i2s) && | |
409 | (((dir == SND_SOC_CLOCK_IN) | |
410 | && !(mod & MOD_CDCLKCON)) || | |
411 | ((dir == SND_SOC_CLOCK_OUT) | |
412 | && (mod & MOD_CDCLKCON))))) { | |
413 | dev_err(&i2s->pdev->dev, | |
414 | "%s:%d Other DAI busy\n", __func__, __LINE__); | |
415 | return -EAGAIN; | |
416 | } | |
417 | ||
418 | if (dir == SND_SOC_CLOCK_IN) | |
419 | mod |= MOD_CDCLKCON; | |
420 | else | |
421 | mod &= ~MOD_CDCLKCON; | |
422 | ||
423 | i2s->rfs = rfs; | |
424 | break; | |
425 | ||
426 | case SAMSUNG_I2S_RCLKSRC_0: /* clock corrsponding to IISMOD[10] := 0 */ | |
427 | case SAMSUNG_I2S_RCLKSRC_1: /* clock corrsponding to IISMOD[10] := 1 */ | |
428 | if ((i2s->quirks & QUIRK_NO_MUXPSR) | |
429 | || (clk_id == SAMSUNG_I2S_RCLKSRC_0)) | |
430 | clk_id = 0; | |
431 | else | |
432 | clk_id = 1; | |
433 | ||
434 | if (!any_active(i2s)) { | |
435 | if (i2s->op_clk) { | |
436 | if ((clk_id && !(mod & MOD_IMS_SYSMUX)) || | |
437 | (!clk_id && (mod & MOD_IMS_SYSMUX))) { | |
98614cf6 | 438 | clk_disable_unprepare(i2s->op_clk); |
1c7ac018 JB |
439 | clk_put(i2s->op_clk); |
440 | } else { | |
6ce534aa JB |
441 | i2s->rclk_srcrate = |
442 | clk_get_rate(i2s->op_clk); | |
1c7ac018 JB |
443 | return 0; |
444 | } | |
445 | } | |
446 | ||
1974a042 PV |
447 | if (clk_id) |
448 | i2s->op_clk = clk_get(&i2s->pdev->dev, | |
449 | "i2s_opclk1"); | |
450 | else | |
451 | i2s->op_clk = clk_get(&i2s->pdev->dev, | |
452 | "i2s_opclk0"); | |
98614cf6 | 453 | clk_prepare_enable(i2s->op_clk); |
1c7ac018 JB |
454 | i2s->rclk_srcrate = clk_get_rate(i2s->op_clk); |
455 | ||
456 | /* Over-ride the other's */ | |
457 | if (other) { | |
458 | other->op_clk = i2s->op_clk; | |
459 | other->rclk_srcrate = i2s->rclk_srcrate; | |
460 | } | |
461 | } else if ((!clk_id && (mod & MOD_IMS_SYSMUX)) | |
462 | || (clk_id && !(mod & MOD_IMS_SYSMUX))) { | |
463 | dev_err(&i2s->pdev->dev, | |
464 | "%s:%d Other DAI busy\n", __func__, __LINE__); | |
465 | return -EAGAIN; | |
466 | } else { | |
467 | /* Call can't be on the active DAI */ | |
468 | i2s->op_clk = other->op_clk; | |
469 | i2s->rclk_srcrate = other->rclk_srcrate; | |
470 | return 0; | |
471 | } | |
472 | ||
473 | if (clk_id == 0) | |
474 | mod &= ~MOD_IMS_SYSMUX; | |
475 | else | |
476 | mod |= MOD_IMS_SYSMUX; | |
477 | break; | |
478 | ||
479 | default: | |
480 | dev_err(&i2s->pdev->dev, "We don't serve that!\n"); | |
481 | return -EINVAL; | |
482 | } | |
483 | ||
484 | writel(mod, i2s->addr + I2SMOD); | |
485 | ||
486 | return 0; | |
487 | } | |
488 | ||
489 | static int i2s_set_fmt(struct snd_soc_dai *dai, | |
490 | unsigned int fmt) | |
491 | { | |
492 | struct i2s_dai *i2s = to_info(dai); | |
493 | u32 mod = readl(i2s->addr + I2SMOD); | |
494 | u32 tmp = 0; | |
495 | ||
496 | /* Format is priority */ | |
497 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
498 | case SND_SOC_DAIFMT_RIGHT_J: | |
499 | tmp |= MOD_LR_RLOW; | |
500 | tmp |= MOD_SDF_MSB; | |
501 | break; | |
502 | case SND_SOC_DAIFMT_LEFT_J: | |
503 | tmp |= MOD_LR_RLOW; | |
504 | tmp |= MOD_SDF_LSB; | |
505 | break; | |
506 | case SND_SOC_DAIFMT_I2S: | |
507 | tmp |= MOD_SDF_IIS; | |
508 | break; | |
509 | default: | |
510 | dev_err(&i2s->pdev->dev, "Format not supported\n"); | |
511 | return -EINVAL; | |
512 | } | |
513 | ||
514 | /* | |
515 | * INV flag is relative to the FORMAT flag - if set it simply | |
516 | * flips the polarity specified by the Standard | |
517 | */ | |
518 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
519 | case SND_SOC_DAIFMT_NB_NF: | |
520 | break; | |
521 | case SND_SOC_DAIFMT_NB_IF: | |
522 | if (tmp & MOD_LR_RLOW) | |
523 | tmp &= ~MOD_LR_RLOW; | |
524 | else | |
525 | tmp |= MOD_LR_RLOW; | |
526 | break; | |
527 | default: | |
528 | dev_err(&i2s->pdev->dev, "Polarity not supported\n"); | |
529 | return -EINVAL; | |
530 | } | |
531 | ||
532 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
533 | case SND_SOC_DAIFMT_CBM_CFM: | |
534 | tmp |= MOD_SLAVE; | |
535 | break; | |
536 | case SND_SOC_DAIFMT_CBS_CFS: | |
537 | /* Set default source clock in Master mode */ | |
538 | if (i2s->rclk_srcrate == 0) | |
539 | i2s_set_sysclk(dai, SAMSUNG_I2S_RCLKSRC_0, | |
540 | 0, SND_SOC_CLOCK_IN); | |
541 | break; | |
542 | default: | |
543 | dev_err(&i2s->pdev->dev, "master/slave format not supported\n"); | |
544 | return -EINVAL; | |
545 | } | |
546 | ||
547 | if (any_active(i2s) && | |
548 | ((mod & (MOD_SDF_MASK | MOD_LR_RLOW | |
549 | | MOD_SLAVE)) != tmp)) { | |
550 | dev_err(&i2s->pdev->dev, | |
551 | "%s:%d Other DAI busy\n", __func__, __LINE__); | |
552 | return -EAGAIN; | |
553 | } | |
554 | ||
555 | mod &= ~(MOD_SDF_MASK | MOD_LR_RLOW | MOD_SLAVE); | |
556 | mod |= tmp; | |
557 | writel(mod, i2s->addr + I2SMOD); | |
558 | ||
559 | return 0; | |
560 | } | |
561 | ||
562 | static int i2s_hw_params(struct snd_pcm_substream *substream, | |
563 | struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) | |
564 | { | |
565 | struct i2s_dai *i2s = to_info(dai); | |
566 | u32 mod = readl(i2s->addr + I2SMOD); | |
567 | ||
568 | if (!is_secondary(i2s)) | |
569 | mod &= ~(MOD_DC2_EN | MOD_DC1_EN); | |
570 | ||
571 | switch (params_channels(params)) { | |
572 | case 6: | |
573 | mod |= MOD_DC2_EN; | |
574 | case 4: | |
575 | mod |= MOD_DC1_EN; | |
576 | break; | |
577 | case 2: | |
588fb705 SP |
578 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
579 | i2s->dma_playback.dma_size = 4; | |
580 | else | |
581 | i2s->dma_capture.dma_size = 4; | |
582 | break; | |
583 | case 1: | |
584 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
585 | i2s->dma_playback.dma_size = 2; | |
586 | else | |
587 | i2s->dma_capture.dma_size = 2; | |
588 | ||
1c7ac018 JB |
589 | break; |
590 | default: | |
591 | dev_err(&i2s->pdev->dev, "%d channels not supported\n", | |
592 | params_channels(params)); | |
593 | return -EINVAL; | |
594 | } | |
595 | ||
596 | if (is_secondary(i2s)) | |
597 | mod &= ~MOD_BLCS_MASK; | |
598 | else | |
599 | mod &= ~MOD_BLCP_MASK; | |
600 | ||
601 | if (is_manager(i2s)) | |
602 | mod &= ~MOD_BLC_MASK; | |
603 | ||
604 | switch (params_format(params)) { | |
605 | case SNDRV_PCM_FORMAT_S8: | |
606 | if (is_secondary(i2s)) | |
607 | mod |= MOD_BLCS_8BIT; | |
608 | else | |
609 | mod |= MOD_BLCP_8BIT; | |
610 | if (is_manager(i2s)) | |
611 | mod |= MOD_BLC_8BIT; | |
612 | break; | |
613 | case SNDRV_PCM_FORMAT_S16_LE: | |
614 | if (is_secondary(i2s)) | |
615 | mod |= MOD_BLCS_16BIT; | |
616 | else | |
617 | mod |= MOD_BLCP_16BIT; | |
618 | if (is_manager(i2s)) | |
619 | mod |= MOD_BLC_16BIT; | |
620 | break; | |
621 | case SNDRV_PCM_FORMAT_S24_LE: | |
622 | if (is_secondary(i2s)) | |
623 | mod |= MOD_BLCS_24BIT; | |
624 | else | |
625 | mod |= MOD_BLCP_24BIT; | |
626 | if (is_manager(i2s)) | |
627 | mod |= MOD_BLC_24BIT; | |
628 | break; | |
629 | default: | |
630 | dev_err(&i2s->pdev->dev, "Format(%d) not supported\n", | |
631 | params_format(params)); | |
632 | return -EINVAL; | |
633 | } | |
634 | writel(mod, i2s->addr + I2SMOD); | |
635 | ||
636 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
637 | snd_soc_dai_set_dma_data(dai, substream, | |
638 | (void *)&i2s->dma_playback); | |
639 | else | |
640 | snd_soc_dai_set_dma_data(dai, substream, | |
641 | (void *)&i2s->dma_capture); | |
642 | ||
643 | i2s->frmclk = params_rate(params); | |
644 | ||
645 | return 0; | |
646 | } | |
647 | ||
648 | /* We set constraints on the substream acc to the version of I2S */ | |
649 | static int i2s_startup(struct snd_pcm_substream *substream, | |
650 | struct snd_soc_dai *dai) | |
651 | { | |
652 | struct i2s_dai *i2s = to_info(dai); | |
653 | struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai; | |
654 | unsigned long flags; | |
655 | ||
656 | spin_lock_irqsave(&lock, flags); | |
657 | ||
658 | i2s->mode |= DAI_OPENED; | |
659 | ||
660 | if (is_manager(other)) | |
661 | i2s->mode &= ~DAI_MANAGER; | |
662 | else | |
663 | i2s->mode |= DAI_MANAGER; | |
664 | ||
665 | /* Enforce set_sysclk in Master mode */ | |
666 | i2s->rclk_srcrate = 0; | |
667 | ||
2d77828d PV |
668 | if (!any_active(i2s) && (i2s->quirks & QUIRK_NEED_RSTCLR)) |
669 | writel(CON_RSTCLR, i2s->addr + I2SCON); | |
670 | ||
1c7ac018 JB |
671 | spin_unlock_irqrestore(&lock, flags); |
672 | ||
673 | return 0; | |
674 | } | |
675 | ||
676 | static void i2s_shutdown(struct snd_pcm_substream *substream, | |
677 | struct snd_soc_dai *dai) | |
678 | { | |
679 | struct i2s_dai *i2s = to_info(dai); | |
680 | struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai; | |
681 | unsigned long flags; | |
682 | ||
683 | spin_lock_irqsave(&lock, flags); | |
684 | ||
685 | i2s->mode &= ~DAI_OPENED; | |
686 | i2s->mode &= ~DAI_MANAGER; | |
687 | ||
688 | if (is_opened(other)) | |
689 | other->mode |= DAI_MANAGER; | |
690 | ||
691 | /* Reset any constraint on RFS and BFS */ | |
692 | i2s->rfs = 0; | |
693 | i2s->bfs = 0; | |
694 | ||
695 | spin_unlock_irqrestore(&lock, flags); | |
696 | ||
697 | /* Gate CDCLK by default */ | |
698 | if (!is_opened(other)) | |
699 | i2s_set_sysclk(dai, SAMSUNG_I2S_CDCLK, | |
700 | 0, SND_SOC_CLOCK_IN); | |
701 | } | |
702 | ||
703 | static int config_setup(struct i2s_dai *i2s) | |
704 | { | |
705 | struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai; | |
706 | unsigned rfs, bfs, blc; | |
707 | u32 psr; | |
708 | ||
709 | blc = get_blc(i2s); | |
710 | ||
711 | bfs = i2s->bfs; | |
712 | ||
713 | if (!bfs && other) | |
714 | bfs = other->bfs; | |
715 | ||
716 | /* Select least possible multiple(2) if no constraint set */ | |
717 | if (!bfs) | |
718 | bfs = blc * 2; | |
719 | ||
720 | rfs = i2s->rfs; | |
721 | ||
722 | if (!rfs && other) | |
723 | rfs = other->rfs; | |
724 | ||
725 | if ((rfs == 256 || rfs == 512) && (blc == 24)) { | |
726 | dev_err(&i2s->pdev->dev, | |
727 | "%d-RFS not supported for 24-blc\n", rfs); | |
728 | return -EINVAL; | |
729 | } | |
730 | ||
731 | if (!rfs) { | |
732 | if (bfs == 16 || bfs == 32) | |
733 | rfs = 256; | |
734 | else | |
735 | rfs = 384; | |
736 | } | |
737 | ||
738 | /* If already setup and running */ | |
739 | if (any_active(i2s) && (get_rfs(i2s) != rfs || get_bfs(i2s) != bfs)) { | |
740 | dev_err(&i2s->pdev->dev, | |
741 | "%s:%d Other DAI busy\n", __func__, __LINE__); | |
742 | return -EAGAIN; | |
743 | } | |
744 | ||
745 | /* Don't bother RFS, BFS & PSR in Slave mode */ | |
746 | if (is_slave(i2s)) | |
747 | return 0; | |
748 | ||
749 | set_bfs(i2s, bfs); | |
750 | set_rfs(i2s, rfs); | |
751 | ||
752 | if (!(i2s->quirks & QUIRK_NO_MUXPSR)) { | |
753 | psr = i2s->rclk_srcrate / i2s->frmclk / rfs; | |
754 | writel(((psr - 1) << 8) | PSR_PSREN, i2s->addr + I2SPSR); | |
755 | dev_dbg(&i2s->pdev->dev, | |
756 | "RCLK_SRC=%luHz PSR=%u, RCLK=%dfs, BCLK=%dfs\n", | |
757 | i2s->rclk_srcrate, psr, rfs, bfs); | |
758 | } | |
759 | ||
760 | return 0; | |
761 | } | |
762 | ||
763 | static int i2s_trigger(struct snd_pcm_substream *substream, | |
764 | int cmd, struct snd_soc_dai *dai) | |
765 | { | |
766 | int capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); | |
767 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
768 | struct i2s_dai *i2s = to_info(rtd->cpu_dai); | |
769 | unsigned long flags; | |
770 | ||
771 | switch (cmd) { | |
772 | case SNDRV_PCM_TRIGGER_START: | |
773 | case SNDRV_PCM_TRIGGER_RESUME: | |
774 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
775 | local_irq_save(flags); | |
776 | ||
1c7ac018 JB |
777 | if (config_setup(i2s)) { |
778 | local_irq_restore(flags); | |
779 | return -EINVAL; | |
780 | } | |
781 | ||
782 | if (capture) | |
783 | i2s_rxctrl(i2s, 1); | |
784 | else | |
785 | i2s_txctrl(i2s, 1); | |
786 | ||
787 | local_irq_restore(flags); | |
788 | break; | |
789 | case SNDRV_PCM_TRIGGER_STOP: | |
790 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
791 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
792 | local_irq_save(flags); | |
793 | ||
c90887fe | 794 | if (capture) { |
1c7ac018 | 795 | i2s_rxctrl(i2s, 0); |
775bc971 | 796 | i2s_fifo(i2s, FIC_RXFLUSH); |
c90887fe JB |
797 | } else { |
798 | i2s_txctrl(i2s, 0); | |
775bc971 | 799 | i2s_fifo(i2s, FIC_TXFLUSH); |
c90887fe | 800 | } |
775bc971 | 801 | |
1c7ac018 JB |
802 | local_irq_restore(flags); |
803 | break; | |
804 | } | |
805 | ||
806 | return 0; | |
807 | } | |
808 | ||
809 | static int i2s_set_clkdiv(struct snd_soc_dai *dai, | |
810 | int div_id, int div) | |
811 | { | |
812 | struct i2s_dai *i2s = to_info(dai); | |
813 | struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai; | |
814 | ||
815 | switch (div_id) { | |
816 | case SAMSUNG_I2S_DIV_BCLK: | |
817 | if ((any_active(i2s) && div && (get_bfs(i2s) != div)) | |
818 | || (other && other->bfs && (other->bfs != div))) { | |
819 | dev_err(&i2s->pdev->dev, | |
820 | "%s:%d Other DAI busy\n", __func__, __LINE__); | |
821 | return -EAGAIN; | |
822 | } | |
823 | i2s->bfs = div; | |
824 | break; | |
825 | default: | |
826 | dev_err(&i2s->pdev->dev, | |
827 | "Invalid clock divider(%d)\n", div_id); | |
828 | return -EINVAL; | |
829 | } | |
830 | ||
831 | return 0; | |
832 | } | |
833 | ||
834 | static snd_pcm_sframes_t | |
835 | i2s_delay(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) | |
836 | { | |
837 | struct i2s_dai *i2s = to_info(dai); | |
838 | u32 reg = readl(i2s->addr + I2SFIC); | |
839 | snd_pcm_sframes_t delay; | |
840 | ||
841 | if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) | |
842 | delay = FIC_RXCOUNT(reg); | |
843 | else if (is_secondary(i2s)) | |
844 | delay = FICS_TXCOUNT(readl(i2s->addr + I2SFICS)); | |
845 | else | |
846 | delay = FIC_TXCOUNT(reg); | |
847 | ||
848 | return delay; | |
849 | } | |
850 | ||
851 | #ifdef CONFIG_PM | |
852 | static int i2s_suspend(struct snd_soc_dai *dai) | |
853 | { | |
854 | struct i2s_dai *i2s = to_info(dai); | |
855 | ||
856 | if (dai->active) { | |
857 | i2s->suspend_i2smod = readl(i2s->addr + I2SMOD); | |
858 | i2s->suspend_i2scon = readl(i2s->addr + I2SCON); | |
859 | i2s->suspend_i2spsr = readl(i2s->addr + I2SPSR); | |
860 | } | |
861 | ||
862 | return 0; | |
863 | } | |
864 | ||
865 | static int i2s_resume(struct snd_soc_dai *dai) | |
866 | { | |
867 | struct i2s_dai *i2s = to_info(dai); | |
868 | ||
869 | if (dai->active) { | |
870 | writel(i2s->suspend_i2scon, i2s->addr + I2SCON); | |
871 | writel(i2s->suspend_i2smod, i2s->addr + I2SMOD); | |
872 | writel(i2s->suspend_i2spsr, i2s->addr + I2SPSR); | |
873 | } | |
874 | ||
875 | return 0; | |
876 | } | |
877 | #else | |
878 | #define i2s_suspend NULL | |
879 | #define i2s_resume NULL | |
880 | #endif | |
881 | ||
882 | static int samsung_i2s_dai_probe(struct snd_soc_dai *dai) | |
883 | { | |
884 | struct i2s_dai *i2s = to_info(dai); | |
885 | struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai; | |
886 | ||
887 | if (other && other->clk) /* If this is probe on secondary */ | |
888 | goto probe_exit; | |
889 | ||
890 | i2s->addr = ioremap(i2s->base, 0x100); | |
891 | if (i2s->addr == NULL) { | |
892 | dev_err(&i2s->pdev->dev, "cannot ioremap registers\n"); | |
893 | return -ENXIO; | |
894 | } | |
895 | ||
896 | i2s->clk = clk_get(&i2s->pdev->dev, "iis"); | |
897 | if (IS_ERR(i2s->clk)) { | |
898 | dev_err(&i2s->pdev->dev, "failed to get i2s_clock\n"); | |
899 | iounmap(i2s->addr); | |
900 | return -ENOENT; | |
901 | } | |
98614cf6 | 902 | clk_prepare_enable(i2s->clk); |
1c7ac018 JB |
903 | |
904 | if (other) { | |
905 | other->addr = i2s->addr; | |
906 | other->clk = i2s->clk; | |
907 | } | |
908 | ||
909 | if (i2s->quirks & QUIRK_NEED_RSTCLR) | |
910 | writel(CON_RSTCLR, i2s->addr + I2SCON); | |
911 | ||
61100f40 | 912 | if (i2s->quirks & QUIRK_SEC_DAI) |
9b8f5695 | 913 | idma_reg_addr_init(i2s->addr, |
61100f40 SK |
914 | i2s->sec_dai->idma_playback.dma_addr); |
915 | ||
1c7ac018 JB |
916 | probe_exit: |
917 | /* Reset any constraint on RFS and BFS */ | |
918 | i2s->rfs = 0; | |
919 | i2s->bfs = 0; | |
920 | i2s_txctrl(i2s, 0); | |
921 | i2s_rxctrl(i2s, 0); | |
922 | i2s_fifo(i2s, FIC_TXFLUSH); | |
923 | i2s_fifo(other, FIC_TXFLUSH); | |
924 | i2s_fifo(i2s, FIC_RXFLUSH); | |
925 | ||
926 | /* Gate CDCLK by default */ | |
927 | if (!is_opened(other)) | |
928 | i2s_set_sysclk(dai, SAMSUNG_I2S_CDCLK, | |
929 | 0, SND_SOC_CLOCK_IN); | |
930 | ||
931 | return 0; | |
932 | } | |
933 | ||
934 | static int samsung_i2s_dai_remove(struct snd_soc_dai *dai) | |
935 | { | |
936 | struct i2s_dai *i2s = snd_soc_dai_get_drvdata(dai); | |
937 | struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai; | |
938 | ||
939 | if (!other || !other->clk) { | |
940 | ||
941 | if (i2s->quirks & QUIRK_NEED_RSTCLR) | |
942 | writel(0, i2s->addr + I2SCON); | |
943 | ||
98614cf6 | 944 | clk_disable_unprepare(i2s->clk); |
1c7ac018 JB |
945 | clk_put(i2s->clk); |
946 | ||
947 | iounmap(i2s->addr); | |
948 | } | |
949 | ||
950 | i2s->clk = NULL; | |
951 | ||
952 | return 0; | |
953 | } | |
954 | ||
85e7652d | 955 | static const struct snd_soc_dai_ops samsung_i2s_dai_ops = { |
1c7ac018 JB |
956 | .trigger = i2s_trigger, |
957 | .hw_params = i2s_hw_params, | |
958 | .set_fmt = i2s_set_fmt, | |
959 | .set_clkdiv = i2s_set_clkdiv, | |
960 | .set_sysclk = i2s_set_sysclk, | |
961 | .startup = i2s_startup, | |
962 | .shutdown = i2s_shutdown, | |
963 | .delay = i2s_delay, | |
964 | }; | |
965 | ||
4b828535 KM |
966 | static const struct snd_soc_component_driver samsung_i2s_component = { |
967 | .name = "samsung-i2s", | |
968 | }; | |
969 | ||
1c7ac018 JB |
970 | #define SAMSUNG_I2S_RATES SNDRV_PCM_RATE_8000_96000 |
971 | ||
972 | #define SAMSUNG_I2S_FMTS (SNDRV_PCM_FMTBIT_S8 | \ | |
973 | SNDRV_PCM_FMTBIT_S16_LE | \ | |
974 | SNDRV_PCM_FMTBIT_S24_LE) | |
975 | ||
fdca21ad | 976 | static struct i2s_dai *i2s_alloc_dai(struct platform_device *pdev, bool sec) |
1c7ac018 JB |
977 | { |
978 | struct i2s_dai *i2s; | |
c6f9b1eb | 979 | int ret; |
1c7ac018 | 980 | |
b960ce74 | 981 | i2s = devm_kzalloc(&pdev->dev, sizeof(struct i2s_dai), GFP_KERNEL); |
1c7ac018 JB |
982 | if (i2s == NULL) |
983 | return NULL; | |
984 | ||
985 | i2s->pdev = pdev; | |
986 | i2s->pri_dai = NULL; | |
987 | i2s->sec_dai = NULL; | |
988 | i2s->i2s_dai_drv.symmetric_rates = 1; | |
989 | i2s->i2s_dai_drv.probe = samsung_i2s_dai_probe; | |
990 | i2s->i2s_dai_drv.remove = samsung_i2s_dai_remove; | |
991 | i2s->i2s_dai_drv.ops = &samsung_i2s_dai_ops; | |
992 | i2s->i2s_dai_drv.suspend = i2s_suspend; | |
993 | i2s->i2s_dai_drv.resume = i2s_resume; | |
994 | i2s->i2s_dai_drv.playback.channels_min = 2; | |
995 | i2s->i2s_dai_drv.playback.channels_max = 2; | |
996 | i2s->i2s_dai_drv.playback.rates = SAMSUNG_I2S_RATES; | |
997 | i2s->i2s_dai_drv.playback.formats = SAMSUNG_I2S_FMTS; | |
998 | ||
999 | if (!sec) { | |
588fb705 | 1000 | i2s->i2s_dai_drv.capture.channels_min = 1; |
1c7ac018 JB |
1001 | i2s->i2s_dai_drv.capture.channels_max = 2; |
1002 | i2s->i2s_dai_drv.capture.rates = SAMSUNG_I2S_RATES; | |
1003 | i2s->i2s_dai_drv.capture.formats = SAMSUNG_I2S_FMTS; | |
c6f9b1eb | 1004 | dev_set_drvdata(&i2s->pdev->dev, i2s); |
1c7ac018 | 1005 | } else { /* Create a new platform_device for Secondary */ |
c6f9b1eb | 1006 | i2s->pdev = platform_device_alloc("samsung-i2s-sec", -1); |
b960ce74 | 1007 | if (IS_ERR(i2s->pdev)) |
1c7ac018 | 1008 | return NULL; |
1c7ac018 | 1009 | |
c6f9b1eb P |
1010 | platform_set_drvdata(i2s->pdev, i2s); |
1011 | ret = platform_device_add(i2s->pdev); | |
1012 | if (ret < 0) | |
1013 | return NULL; | |
1014 | } | |
1c7ac018 JB |
1015 | |
1016 | return i2s; | |
1017 | } | |
1018 | ||
40476f61 PV |
1019 | #ifdef CONFIG_OF |
1020 | static int samsung_i2s_parse_dt_gpio(struct i2s_dai *i2s) | |
1021 | { | |
1022 | struct device *dev = &i2s->pdev->dev; | |
1023 | int index, gpio, ret; | |
1024 | ||
1025 | for (index = 0; index < 7; index++) { | |
1026 | gpio = of_get_gpio(dev->of_node, index); | |
1027 | if (!gpio_is_valid(gpio)) { | |
1028 | dev_err(dev, "invalid gpio[%d]: %d\n", index, gpio); | |
1029 | goto free_gpio; | |
1030 | } | |
1031 | ||
1032 | ret = gpio_request(gpio, dev_name(dev)); | |
1033 | if (ret) { | |
1034 | dev_err(dev, "gpio [%d] request failed\n", gpio); | |
1035 | goto free_gpio; | |
1036 | } | |
1037 | i2s->gpios[index] = gpio; | |
1038 | } | |
1039 | return 0; | |
1040 | ||
1041 | free_gpio: | |
1042 | while (--index >= 0) | |
1043 | gpio_free(i2s->gpios[index]); | |
1044 | return -EINVAL; | |
1045 | } | |
1046 | ||
1047 | static void samsung_i2s_dt_gpio_free(struct i2s_dai *i2s) | |
1048 | { | |
1049 | unsigned int index; | |
1050 | for (index = 0; index < 7; index++) | |
1051 | gpio_free(i2s->gpios[index]); | |
1052 | } | |
1053 | #else | |
1054 | static int samsung_i2s_parse_dt_gpio(struct i2s_dai *dai) | |
1055 | { | |
1056 | return -EINVAL; | |
1057 | } | |
1058 | ||
1059 | static void samsung_i2s_dt_gpio_free(struct i2s_dai *dai) | |
1060 | { | |
1061 | } | |
1062 | ||
1063 | #endif | |
1064 | ||
1065 | static const struct of_device_id exynos_i2s_match[]; | |
1066 | ||
7c62eebb PV |
1067 | static inline int samsung_i2s_get_driver_data(struct platform_device *pdev) |
1068 | { | |
40476f61 PV |
1069 | #ifdef CONFIG_OF |
1070 | struct samsung_i2s_dai_data *data; | |
1071 | if (pdev->dev.of_node) { | |
1072 | const struct of_device_id *match; | |
1073 | match = of_match_node(exynos_i2s_match, pdev->dev.of_node); | |
1074 | data = (struct samsung_i2s_dai_data *) match->data; | |
1075 | return data->dai_type; | |
1076 | } else | |
1077 | #endif | |
1078 | return platform_get_device_id(pdev)->driver_data; | |
7c62eebb PV |
1079 | } |
1080 | ||
5b1d3c34 C |
1081 | #ifdef CONFIG_PM_RUNTIME |
1082 | static int i2s_runtime_suspend(struct device *dev) | |
1083 | { | |
1084 | struct i2s_dai *i2s = dev_get_drvdata(dev); | |
1085 | ||
1086 | clk_disable_unprepare(i2s->clk); | |
1087 | ||
1088 | return 0; | |
1089 | } | |
1090 | ||
1091 | static int i2s_runtime_resume(struct device *dev) | |
1092 | { | |
1093 | struct i2s_dai *i2s = dev_get_drvdata(dev); | |
1094 | ||
1095 | clk_prepare_enable(i2s->clk); | |
1096 | ||
1097 | return 0; | |
1098 | } | |
1099 | #endif /* CONFIG_PM_RUNTIME */ | |
1100 | ||
fdca21ad | 1101 | static int samsung_i2s_probe(struct platform_device *pdev) |
1c7ac018 | 1102 | { |
1c7ac018 | 1103 | struct i2s_dai *pri_dai, *sec_dai = NULL; |
40476f61 PV |
1104 | struct s3c_audio_pdata *i2s_pdata = pdev->dev.platform_data; |
1105 | struct samsung_i2s *i2s_cfg = NULL; | |
1c7ac018 | 1106 | struct resource *res; |
40476f61 PV |
1107 | u32 regs_base, quirks = 0, idma_addr = 0; |
1108 | struct device_node *np = pdev->dev.of_node; | |
7c62eebb | 1109 | enum samsung_dai_type samsung_dai_type; |
1c7ac018 JB |
1110 | int ret = 0; |
1111 | ||
1112 | /* Call during Seconday interface registration */ | |
7c62eebb PV |
1113 | samsung_dai_type = samsung_i2s_get_driver_data(pdev); |
1114 | ||
1115 | if (samsung_dai_type == TYPE_SEC) { | |
1c7ac018 | 1116 | sec_dai = dev_get_drvdata(&pdev->dev); |
a9b977ec P |
1117 | if (!sec_dai) { |
1118 | dev_err(&pdev->dev, "Unable to get drvdata\n"); | |
1119 | return -EFAULT; | |
1120 | } | |
4b828535 KM |
1121 | snd_soc_register_component(&sec_dai->pdev->dev, |
1122 | &samsung_i2s_component, | |
1123 | &sec_dai->i2s_dai_drv, 1); | |
a08485d8 | 1124 | asoc_dma_platform_register(&pdev->dev); |
1c7ac018 JB |
1125 | return 0; |
1126 | } | |
1127 | ||
40476f61 PV |
1128 | pri_dai = i2s_alloc_dai(pdev, false); |
1129 | if (!pri_dai) { | |
1130 | dev_err(&pdev->dev, "Unable to alloc I2S_pri\n"); | |
1131 | return -ENOMEM; | |
1c7ac018 JB |
1132 | } |
1133 | ||
40476f61 PV |
1134 | if (!np) { |
1135 | res = platform_get_resource(pdev, IORESOURCE_DMA, 0); | |
1136 | if (!res) { | |
1137 | dev_err(&pdev->dev, | |
1138 | "Unable to get I2S-TX dma resource\n"); | |
1139 | return -ENXIO; | |
1140 | } | |
1141 | pri_dai->dma_playback.channel = res->start; | |
1c7ac018 | 1142 | |
40476f61 PV |
1143 | res = platform_get_resource(pdev, IORESOURCE_DMA, 1); |
1144 | if (!res) { | |
1145 | dev_err(&pdev->dev, | |
1146 | "Unable to get I2S-RX dma resource\n"); | |
1147 | return -ENXIO; | |
1148 | } | |
1149 | pri_dai->dma_capture.channel = res->start; | |
1c7ac018 | 1150 | |
40476f61 PV |
1151 | if (i2s_pdata == NULL) { |
1152 | dev_err(&pdev->dev, "Can't work without s3c_audio_pdata\n"); | |
1153 | return -EINVAL; | |
1154 | } | |
1155 | ||
1156 | if (&i2s_pdata->type) | |
1157 | i2s_cfg = &i2s_pdata->type.i2s; | |
1158 | ||
1159 | if (i2s_cfg) { | |
1160 | quirks = i2s_cfg->quirks; | |
1161 | idma_addr = i2s_cfg->idma_addr; | |
1162 | } | |
1163 | } else { | |
1164 | if (of_find_property(np, "samsung,supports-6ch", NULL)) | |
1165 | quirks |= QUIRK_PRI_6CHAN; | |
1166 | ||
1167 | if (of_find_property(np, "samsung,supports-secdai", NULL)) | |
1168 | quirks |= QUIRK_SEC_DAI; | |
1169 | ||
1170 | if (of_find_property(np, "samsung,supports-rstclr", NULL)) | |
1171 | quirks |= QUIRK_NEED_RSTCLR; | |
1172 | ||
1173 | if (of_property_read_u32(np, "samsung,idma-addr", | |
1174 | &idma_addr)) { | |
1175 | if (quirks & QUIRK_SEC_DAI) { | |
1176 | dev_err(&pdev->dev, "idma address is not"\ | |
1177 | "specified"); | |
1178 | return -EINVAL; | |
1179 | } | |
1180 | } | |
1181 | } | |
1c7ac018 JB |
1182 | |
1183 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
1184 | if (!res) { | |
1185 | dev_err(&pdev->dev, "Unable to get I2S SFR address\n"); | |
1186 | return -ENXIO; | |
1187 | } | |
1188 | ||
1189 | if (!request_mem_region(res->start, resource_size(res), | |
1190 | "samsung-i2s")) { | |
1191 | dev_err(&pdev->dev, "Unable to request SFR region\n"); | |
1192 | return -EBUSY; | |
1193 | } | |
1194 | regs_base = res->start; | |
1195 | ||
1c7ac018 JB |
1196 | pri_dai->dma_playback.dma_addr = regs_base + I2STXD; |
1197 | pri_dai->dma_capture.dma_addr = regs_base + I2SRXD; | |
1198 | pri_dai->dma_playback.client = | |
1199 | (struct s3c2410_dma_client *)&pri_dai->dma_playback; | |
40476f61 | 1200 | pri_dai->dma_playback.ch_name = "tx"; |
1c7ac018 JB |
1201 | pri_dai->dma_capture.client = |
1202 | (struct s3c2410_dma_client *)&pri_dai->dma_capture; | |
40476f61 | 1203 | pri_dai->dma_capture.ch_name = "rx"; |
1c7ac018 JB |
1204 | pri_dai->dma_playback.dma_size = 4; |
1205 | pri_dai->dma_capture.dma_size = 4; | |
1206 | pri_dai->base = regs_base; | |
1207 | pri_dai->quirks = quirks; | |
1208 | ||
1209 | if (quirks & QUIRK_PRI_6CHAN) | |
1210 | pri_dai->i2s_dai_drv.playback.channels_max = 6; | |
1211 | ||
1212 | if (quirks & QUIRK_SEC_DAI) { | |
1213 | sec_dai = i2s_alloc_dai(pdev, true); | |
1214 | if (!sec_dai) { | |
1215 | dev_err(&pdev->dev, "Unable to alloc I2S_sec\n"); | |
1216 | ret = -ENOMEM; | |
b960ce74 | 1217 | goto err; |
1c7ac018 JB |
1218 | } |
1219 | sec_dai->dma_playback.dma_addr = regs_base + I2STXDS; | |
1220 | sec_dai->dma_playback.client = | |
1221 | (struct s3c2410_dma_client *)&sec_dai->dma_playback; | |
40476f61 PV |
1222 | sec_dai->dma_playback.ch_name = "tx-sec"; |
1223 | ||
1224 | if (!np) { | |
1225 | res = platform_get_resource(pdev, IORESOURCE_DMA, 2); | |
1226 | if (res) | |
1227 | sec_dai->dma_playback.channel = res->start; | |
1228 | } | |
1229 | ||
1c7ac018 JB |
1230 | sec_dai->dma_playback.dma_size = 4; |
1231 | sec_dai->base = regs_base; | |
1232 | sec_dai->quirks = quirks; | |
40476f61 | 1233 | sec_dai->idma_playback.dma_addr = idma_addr; |
1c7ac018 JB |
1234 | sec_dai->pri_dai = pri_dai; |
1235 | pri_dai->sec_dai = sec_dai; | |
1236 | } | |
1237 | ||
40476f61 PV |
1238 | if (np) { |
1239 | if (samsung_i2s_parse_dt_gpio(pri_dai)) { | |
1240 | dev_err(&pdev->dev, "Unable to configure gpio\n"); | |
1241 | ret = -EINVAL; | |
1242 | goto err; | |
1243 | } | |
1244 | } else { | |
1245 | if (i2s_pdata->cfg_gpio && i2s_pdata->cfg_gpio(pdev)) { | |
1246 | dev_err(&pdev->dev, "Unable to configure gpio\n"); | |
1247 | ret = -EINVAL; | |
1248 | goto err; | |
1249 | } | |
1c7ac018 JB |
1250 | } |
1251 | ||
4b828535 KM |
1252 | snd_soc_register_component(&pri_dai->pdev->dev, &samsung_i2s_component, |
1253 | &pri_dai->i2s_dai_drv, 1); | |
1c7ac018 | 1254 | |
c5cf4dbc MB |
1255 | pm_runtime_enable(&pdev->dev); |
1256 | ||
a08485d8 PV |
1257 | asoc_dma_platform_register(&pdev->dev); |
1258 | ||
1c7ac018 | 1259 | return 0; |
b960ce74 | 1260 | err: |
1c7ac018 JB |
1261 | release_mem_region(regs_base, resource_size(res)); |
1262 | ||
1263 | return ret; | |
1264 | } | |
1265 | ||
fdca21ad | 1266 | static int samsung_i2s_remove(struct platform_device *pdev) |
1c7ac018 JB |
1267 | { |
1268 | struct i2s_dai *i2s, *other; | |
c5cf4dbc | 1269 | struct resource *res; |
40476f61 | 1270 | struct s3c_audio_pdata *i2s_pdata = pdev->dev.platform_data; |
1c7ac018 JB |
1271 | |
1272 | i2s = dev_get_drvdata(&pdev->dev); | |
1273 | other = i2s->pri_dai ? : i2s->sec_dai; | |
1274 | ||
40476f61 PV |
1275 | if (!i2s_pdata->cfg_gpio && pdev->dev.of_node) |
1276 | samsung_i2s_dt_gpio_free(i2s->pri_dai); | |
1277 | ||
1c7ac018 JB |
1278 | if (other) { |
1279 | other->pri_dai = NULL; | |
1280 | other->sec_dai = NULL; | |
1281 | } else { | |
c5cf4dbc | 1282 | pm_runtime_disable(&pdev->dev); |
1c7ac018 JB |
1283 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
1284 | if (res) | |
1285 | release_mem_region(res->start, resource_size(res)); | |
1286 | } | |
1287 | ||
1288 | i2s->pri_dai = NULL; | |
1289 | i2s->sec_dai = NULL; | |
1290 | ||
a08485d8 | 1291 | asoc_dma_platform_unregister(&pdev->dev); |
4b828535 | 1292 | snd_soc_unregister_component(&pdev->dev); |
1c7ac018 JB |
1293 | |
1294 | return 0; | |
1295 | } | |
1296 | ||
7c62eebb PV |
1297 | static struct platform_device_id samsung_i2s_driver_ids[] = { |
1298 | { | |
1299 | .name = "samsung-i2s", | |
1300 | .driver_data = TYPE_PRI, | |
1301 | }, { | |
1302 | .name = "samsung-i2s-sec", | |
1303 | .driver_data = TYPE_SEC, | |
1304 | }, | |
1305 | {}, | |
1306 | }; | |
2af19558 | 1307 | MODULE_DEVICE_TABLE(platform, samsung_i2s_driver_ids); |
7c62eebb | 1308 | |
40476f61 PV |
1309 | #ifdef CONFIG_OF |
1310 | static struct samsung_i2s_dai_data samsung_i2s_dai_data_array[] = { | |
1311 | [TYPE_PRI] = { TYPE_PRI }, | |
1312 | [TYPE_SEC] = { TYPE_SEC }, | |
1313 | }; | |
1314 | ||
1315 | static const struct of_device_id exynos_i2s_match[] = { | |
1316 | { .compatible = "samsung,i2s-v5", | |
1317 | .data = &samsung_i2s_dai_data_array[TYPE_PRI], | |
1318 | }, | |
1319 | {}, | |
1320 | }; | |
1321 | MODULE_DEVICE_TABLE(of, exynos_i2s_match); | |
1322 | #endif | |
1323 | ||
5b1d3c34 C |
1324 | static const struct dev_pm_ops samsung_i2s_pm = { |
1325 | SET_RUNTIME_PM_OPS(i2s_runtime_suspend, | |
1326 | i2s_runtime_resume, NULL) | |
1327 | }; | |
1328 | ||
1c7ac018 JB |
1329 | static struct platform_driver samsung_i2s_driver = { |
1330 | .probe = samsung_i2s_probe, | |
fdca21ad | 1331 | .remove = samsung_i2s_remove, |
7c62eebb | 1332 | .id_table = samsung_i2s_driver_ids, |
1c7ac018 JB |
1333 | .driver = { |
1334 | .name = "samsung-i2s", | |
1335 | .owner = THIS_MODULE, | |
40476f61 | 1336 | .of_match_table = of_match_ptr(exynos_i2s_match), |
5b1d3c34 | 1337 | .pm = &samsung_i2s_pm, |
1c7ac018 JB |
1338 | }, |
1339 | }; | |
1340 | ||
e00c3f55 | 1341 | module_platform_driver(samsung_i2s_driver); |
1c7ac018 JB |
1342 | |
1343 | /* Module information */ | |
df8ad335 | 1344 | MODULE_AUTHOR("Jaswinder Singh, <jassisinghbrar@gmail.com>"); |
1c7ac018 JB |
1345 | MODULE_DESCRIPTION("Samsung I2S Interface"); |
1346 | MODULE_ALIAS("platform:samsung-i2s"); | |
1347 | MODULE_LICENSE("GPL"); |