2 * Renesas R-Car SRC support
4 * Copyright (C) 2013 Renesas Solutions Corp.
5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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.
13 #define SRC_NAME "src"
16 #define OUF_SRCO ((1 << 12) | (1 << 13))
17 #define OUF_SRCI ((1 << 9) | (1 << 8))
19 /* SCU_SYSTEM_STATUS0/1 */
20 #define OUF_SRC(id) ((1 << (id + 16)) | (1 << id))
23 struct rsnd_src_platform_info
*info
; /* rcar_snd.h */
25 struct rsnd_kctrl_cfg_s sen
; /* sync convert enable */
26 struct rsnd_kctrl_cfg_s sync
; /* sync convert */
27 u32 convert_rate
; /* sampling rate convert */
31 #define RSND_SRC_NAME_SIZE 16
33 #define rsnd_enable_sync_convert(src) ((src)->sen.val)
34 #define rsnd_src_of_node(priv) \
35 of_get_child_by_name(rsnd_priv_to_dev(priv)->of_node, "rcar_sound,src")
37 #define rsnd_mod_to_src(_mod) \
38 container_of((_mod), struct rsnd_src, mod)
40 #define for_each_rsnd_src(pos, priv, i) \
42 ((i) < rsnd_src_nr(priv)) && \
43 ((pos) = (struct rsnd_src *)(priv)->src + i); \
48 * image of SRC (Sampling Rate Converter)
50 * 96kHz <-> +-----+ 48kHz +-----+ 48kHz +-------+
51 * 48kHz <-> | SRC | <------> | SSI | <-----> | codec |
52 * 44.1kHz <-> +-----+ +-----+ +-------+
62 * [mem] -> [SRU] -> [SSI]
67 * [mem] -> [SRC] -> [SSIU] -> [SSI]
72 * How to use SRC bypass mode for debugging
74 * SRC has bypass mode, and it is useful for debugging.
76 * SRCm_MODE controls whether SRC is used or not
77 * SSI_MODE0 controls whether SSIU which receives SRC data
79 * Both SRCm_MODE/SSI_MODE0 settings are needed if you use SRC,
80 * but SRC bypass mode needs SSI_MODE0 only.
83 * struct rsnd_src_platform_info {
88 * rsnd_src_convert_rate() indicates
89 * above convert_rate, and it controls
90 * whether SRC is used or not.
93 * static struct rsnd_dai_platform_info rsnd_dai = {
94 * .playback = { .ssi = &rsnd_ssi[0], },
98 * static struct rsnd_src_platform_info rsnd_src[] = {
102 * static struct rsnd_dai_platform_info rsnd_dai = {
103 * .playback = { .ssi = &rsnd_ssi[0], .src = &rsnd_src[0] },
106 * ex) uses SRC bypass mode
107 * static struct rsnd_src_platform_info rsnd_src[] = {
111 * static struct rsnd_dai_platform_info rsnd_dai = {
112 * .playback = { .ssi = &rsnd_ssi[0], .src = &rsnd_src[0] },
118 * Gen1/Gen2 common functions
120 static struct dma_chan
*rsnd_src_dma_req(struct rsnd_dai_stream
*io
,
121 struct rsnd_mod
*mod
)
123 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
124 int is_play
= rsnd_io_is_play(io
);
126 return rsnd_dma_request_channel(rsnd_src_of_node(priv
),
128 is_play
? "rx" : "tx");
131 int rsnd_src_ssiu_start(struct rsnd_mod
*ssi_mod
,
132 struct rsnd_dai_stream
*io
,
135 struct rsnd_dai
*rdai
= rsnd_io_to_rdai(io
);
136 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
137 int ssi_id
= rsnd_mod_id(ssi_mod
);
142 rsnd_mod_bset(ssi_mod
, SSI_MODE0
, (1 << ssi_id
),
143 !use_busif
<< ssi_id
);
148 if (rsnd_ssi_is_pin_sharing(ssi_mod
)) {
163 rsnd_mod_bset(ssi_mod
, SSI_MODE1
,
165 rsnd_rdai_is_clk_master(rdai
) ?
166 0x2 << shift
: 0x1 << shift
);
170 * DMA settings for SSIU
173 u32 val
= 0x76543210;
176 rsnd_mod_write(ssi_mod
, SSI_BUSIF_ADINR
,
177 rsnd_get_adinr(ssi_mod
, io
));
178 rsnd_mod_write(ssi_mod
, SSI_BUSIF_MODE
, 1);
179 rsnd_mod_write(ssi_mod
, SSI_CTRL
, 0x1);
181 mask
<<= runtime
->channels
* 4;
184 switch (runtime
->sample_bits
) {
186 val
|= 0x67452301 & ~mask
;
189 val
|= 0x76543210 & ~mask
;
192 rsnd_mod_write(ssi_mod
, SSI_BUSIF_DALIGN
, val
);
199 int rsnd_src_ssiu_stop(struct rsnd_mod
*ssi_mod
,
200 struct rsnd_dai_stream
*io
)
203 * DMA settings for SSIU
205 rsnd_mod_write(ssi_mod
, SSI_CTRL
, 0);
210 int rsnd_src_ssi_irq_enable(struct rsnd_mod
*ssi_mod
)
212 struct rsnd_priv
*priv
= rsnd_mod_to_priv(ssi_mod
);
214 if (rsnd_is_gen1(priv
))
217 /* enable SSI interrupt if Gen2 */
218 rsnd_mod_write(ssi_mod
, SSI_INT_ENABLE
,
219 rsnd_ssi_is_dma_mode(ssi_mod
) ?
220 0x0e000000 : 0x0f000000);
225 int rsnd_src_ssi_irq_disable(struct rsnd_mod
*ssi_mod
)
227 struct rsnd_priv
*priv
= rsnd_mod_to_priv(ssi_mod
);
229 if (rsnd_is_gen1(priv
))
232 /* disable SSI interrupt if Gen2 */
233 rsnd_mod_write(ssi_mod
, SSI_INT_ENABLE
, 0x00000000);
238 static u32
rsnd_src_convert_rate(struct rsnd_dai_stream
*io
,
239 struct rsnd_src
*src
)
241 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
247 if (!rsnd_enable_sync_convert(src
))
248 return src
->convert_rate
;
250 convert_rate
= src
->sync
.val
;
253 convert_rate
= src
->convert_rate
;
256 convert_rate
= runtime
->rate
;
261 unsigned int rsnd_src_get_ssi_rate(struct rsnd_priv
*priv
,
262 struct rsnd_dai_stream
*io
,
263 struct snd_pcm_runtime
*runtime
)
265 struct rsnd_mod
*src_mod
= rsnd_io_to_mod_src(io
);
266 struct rsnd_src
*src
;
267 unsigned int rate
= 0;
270 src
= rsnd_mod_to_src(src_mod
);
273 * return convert rate if SRC is used,
274 * otherwise, return runtime->rate as usual
276 rate
= rsnd_src_convert_rate(io
, src
);
280 rate
= runtime
->rate
;
285 static int rsnd_src_set_convert_rate(struct rsnd_mod
*mod
,
286 struct rsnd_dai_stream
*io
)
288 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
289 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
290 u32 convert_rate
= rsnd_src_convert_rate(io
, src
);
294 fsrate
= 0x0400000 / convert_rate
* runtime
->rate
;
296 /* set/clear soft reset */
297 rsnd_mod_write(mod
, SRC_SWRSR
, 0);
298 rsnd_mod_write(mod
, SRC_SWRSR
, 1);
300 /* Set channel number and output bit length */
301 rsnd_mod_write(mod
, SRC_ADINR
, rsnd_get_adinr(mod
, io
));
303 /* Enable the initial value of IFS */
305 rsnd_mod_write(mod
, SRC_IFSCR
, 1);
307 /* Set initial value of IFS */
308 rsnd_mod_write(mod
, SRC_IFSVR
, fsrate
);
311 /* use DMA transfer */
312 rsnd_mod_write(mod
, SRC_BUSIF_MODE
, 1);
317 static int rsnd_src_hw_params(struct rsnd_mod
*mod
,
318 struct rsnd_dai_stream
*io
,
319 struct snd_pcm_substream
*substream
,
320 struct snd_pcm_hw_params
*fe_params
)
322 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
323 struct snd_soc_pcm_runtime
*fe
= substream
->private_data
;
325 /* default value (mainly for non-DT) */
326 src
->convert_rate
= src
->info
->convert_rate
;
329 * SRC assumes that it is used under DPCM if user want to use
330 * sampling rate convert. Then, SRC should be FE.
331 * And then, this function will be called *after* BE settings.
332 * this means, each BE already has fixuped hw_params.
334 * dpcm_fe_dai_hw_params()
335 * dpcm_be_dai_hw_params()
337 if (fe
->dai_link
->dynamic
) {
338 int stream
= substream
->stream
;
339 struct snd_soc_dpcm
*dpcm
;
340 struct snd_pcm_hw_params
*be_params
;
342 list_for_each_entry(dpcm
, &fe
->dpcm
[stream
].be_clients
, list_be
) {
343 be_params
= &dpcm
->hw_params
;
345 if (params_rate(fe_params
) != params_rate(be_params
))
346 src
->convert_rate
= params_rate(be_params
);
353 static int rsnd_src_init(struct rsnd_mod
*mod
,
354 struct rsnd_priv
*priv
)
356 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
358 rsnd_mod_hw_start(mod
);
362 /* reset sync convert_rate */
366 * Initialize the operation of the SRC internal circuits
367 * see rsnd_src_start()
369 rsnd_mod_write(mod
, SRC_SRCIR
, 1);
374 static int rsnd_src_quit(struct rsnd_mod
*mod
,
375 struct rsnd_dai_stream
*io
,
376 struct rsnd_priv
*priv
)
378 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
379 struct device
*dev
= rsnd_priv_to_dev(priv
);
381 rsnd_mod_hw_stop(mod
);
384 dev_warn(dev
, "%s[%d] under/over flow err = %d\n",
385 rsnd_mod_name(mod
), rsnd_mod_id(mod
), src
->err
);
387 src
->convert_rate
= 0;
389 /* reset sync convert_rate */
395 static int rsnd_src_start(struct rsnd_mod
*mod
)
398 * Cancel the initialization and operate the SRC function
399 * see rsnd_src_init()
401 rsnd_mod_write(mod
, SRC_SRCIR
, 0);
406 static int rsnd_src_stop(struct rsnd_mod
*mod
)
415 static int rsnd_src_set_route_gen1(struct rsnd_dai_stream
*io
,
416 struct rsnd_mod
*mod
)
418 struct src_route_config
{
425 { 0x7, 12, }, /* 3 */
426 { 0x7, 16, }, /* 4 */
427 { 0x7, 20, }, /* 5 */
428 { 0x7, 24, }, /* 6 */
429 { 0x3, 28, }, /* 7 */
430 { 0x3, 30, }, /* 8 */
436 id
= rsnd_mod_id(mod
);
437 if (id
< 0 || id
>= ARRAY_SIZE(routes
))
443 val
= rsnd_io_is_play(io
) ? 0x1 : 0x2;
444 val
= val
<< routes
[id
].shift
;
445 mask
= routes
[id
].mask
<< routes
[id
].shift
;
447 rsnd_mod_bset(mod
, SRC_ROUTE_SEL
, mask
, val
);
452 static int rsnd_src_set_convert_timing_gen1(struct rsnd_dai_stream
*io
,
453 struct rsnd_mod
*mod
)
455 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
456 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
457 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
458 u32 convert_rate
= rsnd_src_convert_rate(io
, src
);
462 int id
= rsnd_mod_id(mod
);
468 shift
= (id
% 4) * 8;
469 mask
= 0x1F << shift
;
472 * ADG is used as source clock if SRC was used,
473 * then, SSI WS is used as destination clock.
474 * SSI WS is used as source clock if SRC is not used
475 * (when playback, source/destination become reverse when capture)
481 ret
= rsnd_adg_set_convert_clk_gen1(priv
, mod
,
484 } else if (8 == id
) {
485 /* use SSI WS, but SRU8 is special */
489 val
= (id
+ 1) << shift
;
497 rsnd_mod_bset(mod
, SRC_TMG_SEL0
, mask
, val
);
500 rsnd_mod_bset(mod
, SRC_TMG_SEL1
, mask
, val
);
503 rsnd_mod_bset(mod
, SRC_TMG_SEL2
, mask
, val
);
510 static int rsnd_src_set_convert_rate_gen1(struct rsnd_mod
*mod
,
511 struct rsnd_dai_stream
*io
)
513 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
516 ret
= rsnd_src_set_convert_rate(mod
, io
);
520 /* Select SRC mode (fixed value) */
521 rsnd_mod_write(mod
, SRC_SRCCR
, 0x00010110);
523 /* Set the restriction value of the FS ratio (98%) */
524 rsnd_mod_write(mod
, SRC_MNFSR
,
525 rsnd_mod_read(mod
, SRC_IFSVR
) / 100 * 98);
527 /* Gen1/Gen2 are not compatible */
528 if (rsnd_src_convert_rate(io
, src
))
529 rsnd_mod_write(mod
, SRC_ROUTE_MODE0
, 1);
531 /* no SRC_BFSSR settings, since SRC_SRCCR::BUFMD is 0 */
536 static int rsnd_src_init_gen1(struct rsnd_mod
*mod
,
537 struct rsnd_dai_stream
*io
,
538 struct rsnd_priv
*priv
)
542 ret
= rsnd_src_init(mod
, priv
);
546 ret
= rsnd_src_set_route_gen1(io
, mod
);
550 ret
= rsnd_src_set_convert_rate_gen1(mod
, io
);
554 ret
= rsnd_src_set_convert_timing_gen1(io
, mod
);
561 static int rsnd_src_start_gen1(struct rsnd_mod
*mod
,
562 struct rsnd_dai_stream
*io
,
563 struct rsnd_priv
*priv
)
565 int id
= rsnd_mod_id(mod
);
567 rsnd_mod_bset(mod
, SRC_ROUTE_CTRL
, (1 << id
), (1 << id
));
569 return rsnd_src_start(mod
);
572 static int rsnd_src_stop_gen1(struct rsnd_mod
*mod
,
573 struct rsnd_dai_stream
*io
,
574 struct rsnd_priv
*priv
)
576 int id
= rsnd_mod_id(mod
);
578 rsnd_mod_bset(mod
, SRC_ROUTE_CTRL
, (1 << id
), 0);
580 return rsnd_src_stop(mod
);
583 static struct rsnd_mod_ops rsnd_src_gen1_ops
= {
585 .dma_req
= rsnd_src_dma_req
,
586 .init
= rsnd_src_init_gen1
,
587 .quit
= rsnd_src_quit
,
588 .start
= rsnd_src_start_gen1
,
589 .stop
= rsnd_src_stop_gen1
,
590 .hw_params
= rsnd_src_hw_params
,
596 #define rsnd_src_irq_enable_gen2(mod) rsnd_src_irq_ctrol_gen2(mod, 1)
597 #define rsnd_src_irq_disable_gen2(mod) rsnd_src_irq_ctrol_gen2(mod, 0)
598 static void rsnd_src_irq_ctrol_gen2(struct rsnd_mod
*mod
, int enable
)
600 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
601 u32 sys_int_val
, int_val
, sys_int_mask
;
602 int irq
= src
->info
->irq
;
603 int id
= rsnd_mod_id(mod
);
606 sys_int_mask
= OUF_SRC(id
);
610 * IRQ is not supported on non-DT
612 * rsnd_src_probe_gen2()
614 if ((irq
<= 0) || !enable
) {
619 rsnd_mod_write(mod
, SRC_INT_ENABLE0
, int_val
);
620 rsnd_mod_bset(mod
, SCU_SYS_INT_EN0
, sys_int_mask
, sys_int_val
);
621 rsnd_mod_bset(mod
, SCU_SYS_INT_EN1
, sys_int_mask
, sys_int_val
);
624 static void rsnd_src_error_clear_gen2(struct rsnd_mod
*mod
)
626 u32 val
= OUF_SRC(rsnd_mod_id(mod
));
628 rsnd_mod_bset(mod
, SCU_SYS_STATUS0
, val
, val
);
629 rsnd_mod_bset(mod
, SCU_SYS_STATUS1
, val
, val
);
632 static bool rsnd_src_error_record_gen2(struct rsnd_mod
*mod
)
634 u32 val
= OUF_SRC(rsnd_mod_id(mod
));
637 if ((rsnd_mod_read(mod
, SCU_SYS_STATUS0
) & val
) ||
638 (rsnd_mod_read(mod
, SCU_SYS_STATUS1
) & val
)) {
639 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
645 /* clear error static */
646 rsnd_src_error_clear_gen2(mod
);
651 static int _rsnd_src_start_gen2(struct rsnd_mod
*mod
,
652 struct rsnd_dai_stream
*io
)
654 u32 val
= rsnd_io_to_mod_dvc(io
) ? 0x01 : 0x11;
656 rsnd_mod_write(mod
, SRC_CTRL
, val
);
658 rsnd_src_error_clear_gen2(mod
);
662 rsnd_src_irq_enable_gen2(mod
);
667 static int _rsnd_src_stop_gen2(struct rsnd_mod
*mod
)
669 rsnd_src_irq_disable_gen2(mod
);
671 rsnd_mod_write(mod
, SRC_CTRL
, 0);
673 rsnd_src_error_record_gen2(mod
);
675 return rsnd_src_stop(mod
);
678 static void __rsnd_src_interrupt_gen2(struct rsnd_mod
*mod
,
679 struct rsnd_dai_stream
*io
)
681 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
683 spin_lock(&priv
->lock
);
685 /* ignore all cases if not working */
686 if (!rsnd_io_is_working(io
))
687 goto rsnd_src_interrupt_gen2_out
;
689 if (rsnd_src_error_record_gen2(mod
)) {
690 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
691 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
692 struct device
*dev
= rsnd_priv_to_dev(priv
);
694 dev_dbg(dev
, "%s[%d] restart\n",
695 rsnd_mod_name(mod
), rsnd_mod_id(mod
));
697 _rsnd_src_stop_gen2(mod
);
699 _rsnd_src_start_gen2(mod
, io
);
701 dev_warn(dev
, "no more SRC restart\n");
704 rsnd_src_interrupt_gen2_out
:
705 spin_unlock(&priv
->lock
);
708 static irqreturn_t
rsnd_src_interrupt_gen2(int irq
, void *data
)
710 struct rsnd_mod
*mod
= data
;
712 rsnd_mod_interrupt(mod
, __rsnd_src_interrupt_gen2
);
717 static int rsnd_src_set_convert_rate_gen2(struct rsnd_mod
*mod
,
718 struct rsnd_dai_stream
*io
)
720 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
721 struct device
*dev
= rsnd_priv_to_dev(priv
);
722 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
723 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
724 u32 convert_rate
= rsnd_src_convert_rate(io
, src
);
729 /* 6 - 1/6 are very enough ratio for SRC_BSDSR */
732 else if (convert_rate
> runtime
->rate
)
733 ratio
= 100 * convert_rate
/ runtime
->rate
;
735 ratio
= 100 * runtime
->rate
/ convert_rate
;
738 dev_err(dev
, "FSO/FSI ratio error\n");
742 ret
= rsnd_src_set_convert_rate(mod
, io
);
751 if (rsnd_enable_sync_convert(src
)) {
753 route
|= rsnd_io_is_play(io
) ?
754 (0x1 << 24) : (0x1 << 25);
758 rsnd_mod_write(mod
, SRC_SRCCR
, cr
);
759 rsnd_mod_write(mod
, SRC_ROUTE_MODE0
, route
);
761 switch (rsnd_mod_id(mod
)) {
766 rsnd_mod_write(mod
, SRC_BSDSR
, 0x02400000);
769 rsnd_mod_write(mod
, SRC_BSDSR
, 0x01800000);
773 rsnd_mod_write(mod
, SRC_BSISR
, 0x00100060);
778 static int rsnd_src_set_convert_timing_gen2(struct rsnd_dai_stream
*io
,
779 struct rsnd_mod
*mod
)
781 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
782 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
783 u32 convert_rate
= rsnd_src_convert_rate(io
, src
);
787 ret
= rsnd_adg_set_convert_clk_gen2(mod
, io
,
791 ret
= rsnd_adg_set_convert_timing_gen2(mod
, io
);
796 static int rsnd_src_probe_gen2(struct rsnd_mod
*mod
,
797 struct rsnd_dai_stream
*io
,
798 struct rsnd_priv
*priv
)
800 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
801 struct device
*dev
= rsnd_priv_to_dev(priv
);
802 int irq
= src
->info
->irq
;
807 * IRQ is not supported on non-DT
809 * rsnd_src_irq_enable_gen2()
811 ret
= devm_request_irq(dev
, irq
,
812 rsnd_src_interrupt_gen2
,
819 ret
= rsnd_dma_init(io
,
820 rsnd_mod_to_dma(mod
),
826 static int rsnd_src_remove_gen2(struct rsnd_mod
*mod
,
827 struct rsnd_dai_stream
*io
,
828 struct rsnd_priv
*priv
)
830 rsnd_dma_quit(io
, rsnd_mod_to_dma(mod
));
835 static int rsnd_src_init_gen2(struct rsnd_mod
*mod
,
836 struct rsnd_dai_stream
*io
,
837 struct rsnd_priv
*priv
)
841 ret
= rsnd_src_init(mod
, priv
);
845 ret
= rsnd_src_set_convert_rate_gen2(mod
, io
);
849 ret
= rsnd_src_set_convert_timing_gen2(io
, mod
);
856 static int rsnd_src_start_gen2(struct rsnd_mod
*mod
,
857 struct rsnd_dai_stream
*io
,
858 struct rsnd_priv
*priv
)
860 rsnd_dma_start(io
, rsnd_mod_to_dma(mod
));
862 return _rsnd_src_start_gen2(mod
, io
);
865 static int rsnd_src_stop_gen2(struct rsnd_mod
*mod
,
866 struct rsnd_dai_stream
*io
,
867 struct rsnd_priv
*priv
)
871 ret
= _rsnd_src_stop_gen2(mod
);
873 rsnd_dma_stop(io
, rsnd_mod_to_dma(mod
));
878 static void rsnd_src_reconvert_update(struct rsnd_dai_stream
*io
,
879 struct rsnd_mod
*mod
)
881 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
882 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
883 u32 convert_rate
= rsnd_src_convert_rate(io
, src
);
890 convert_rate
= runtime
->rate
;
892 fsrate
= 0x0400000 / convert_rate
* runtime
->rate
;
895 rsnd_mod_write(mod
, SRC_IFSVR
, fsrate
);
898 static int rsnd_src_pcm_new(struct rsnd_mod
*mod
,
899 struct rsnd_dai_stream
*io
,
900 struct snd_soc_pcm_runtime
*rtd
)
902 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
903 struct rsnd_dai
*rdai
= rsnd_io_to_rdai(io
);
904 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
908 * enable SRC sync convert if possible
912 * Gen1 is not supported
914 if (rsnd_is_gen1(priv
))
918 * SRC sync convert needs clock master
920 if (!rsnd_rdai_is_clk_master(rdai
))
924 * We can't use SRC sync convert
927 if (rsnd_io_to_mod_dvc(io
))
931 * enable sync convert
933 ret
= rsnd_kctrl_new_s(mod
, io
, rtd
,
934 rsnd_io_is_play(io
) ?
935 "SRC Out Rate Switch" :
936 "SRC In Rate Switch",
937 rsnd_src_reconvert_update
,
942 ret
= rsnd_kctrl_new_s(mod
, io
, rtd
,
943 rsnd_io_is_play(io
) ?
946 rsnd_src_reconvert_update
,
952 static struct rsnd_mod_ops rsnd_src_gen2_ops
= {
954 .dma_req
= rsnd_src_dma_req
,
955 .probe
= rsnd_src_probe_gen2
,
956 .remove
= rsnd_src_remove_gen2
,
957 .init
= rsnd_src_init_gen2
,
958 .quit
= rsnd_src_quit
,
959 .start
= rsnd_src_start_gen2
,
960 .stop
= rsnd_src_stop_gen2
,
961 .hw_params
= rsnd_src_hw_params
,
962 .pcm_new
= rsnd_src_pcm_new
,
965 struct rsnd_mod
*rsnd_src_mod_get(struct rsnd_priv
*priv
, int id
)
967 if (WARN_ON(id
< 0 || id
>= rsnd_src_nr(priv
)))
970 return &((struct rsnd_src
*)(priv
->src
) + id
)->mod
;
973 static void rsnd_of_parse_src(struct platform_device
*pdev
,
974 const struct rsnd_of_data
*of_data
,
975 struct rsnd_priv
*priv
)
977 struct device_node
*src_node
;
978 struct device_node
*np
;
979 struct rcar_snd_info
*info
= rsnd_priv_to_info(priv
);
980 struct rsnd_src_platform_info
*src_info
;
981 struct device
*dev
= &pdev
->dev
;
987 src_node
= rsnd_src_of_node(priv
);
991 nr
= of_get_child_count(src_node
);
993 goto rsnd_of_parse_src_end
;
995 src_info
= devm_kzalloc(dev
,
996 sizeof(struct rsnd_src_platform_info
) * nr
,
999 dev_err(dev
, "src info allocation error\n");
1000 goto rsnd_of_parse_src_end
;
1003 info
->src_info
= src_info
;
1004 info
->src_info_nr
= nr
;
1007 for_each_child_of_node(src_node
, np
) {
1008 src_info
[i
].irq
= irq_of_parse_and_map(np
, 0);
1013 rsnd_of_parse_src_end
:
1014 of_node_put(src_node
);
1017 int rsnd_src_probe(struct platform_device
*pdev
,
1018 const struct rsnd_of_data
*of_data
,
1019 struct rsnd_priv
*priv
)
1021 struct rcar_snd_info
*info
= rsnd_priv_to_info(priv
);
1022 struct device
*dev
= rsnd_priv_to_dev(priv
);
1023 struct rsnd_src
*src
;
1024 struct rsnd_mod_ops
*ops
;
1026 char name
[RSND_SRC_NAME_SIZE
];
1030 if (rsnd_is_gen1(priv
))
1031 ops
= &rsnd_src_gen1_ops
;
1032 if (rsnd_is_gen2(priv
))
1033 ops
= &rsnd_src_gen2_ops
;
1035 dev_err(dev
, "unknown Generation\n");
1039 rsnd_of_parse_src(pdev
, of_data
, priv
);
1044 nr
= info
->src_info_nr
;
1048 src
= devm_kzalloc(dev
, sizeof(*src
) * nr
, GFP_KERNEL
);
1055 for_each_rsnd_src(src
, priv
, i
) {
1056 snprintf(name
, RSND_SRC_NAME_SIZE
, "%s.%d",
1059 clk
= devm_clk_get(dev
, name
);
1061 return PTR_ERR(clk
);
1063 src
->info
= &info
->src_info
[i
];
1065 ret
= rsnd_mod_init(priv
, &src
->mod
, ops
, clk
, RSND_MOD_SRC
, i
);
1073 void rsnd_src_remove(struct platform_device
*pdev
,
1074 struct rsnd_priv
*priv
)
1076 struct rsnd_src
*src
;
1079 for_each_rsnd_src(src
, priv
, i
) {
1080 rsnd_mod_quit(&src
->mod
);