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
, 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 if (rsnd_ssi_is_dma_mode(ssi_mod
))
219 rsnd_mod_write(ssi_mod
, INT_ENABLE
, 0x0e000000);
221 rsnd_mod_write(ssi_mod
, INT_ENABLE
, 0x0f000000);
226 int rsnd_src_ssi_irq_disable(struct rsnd_mod
*ssi_mod
)
228 struct rsnd_priv
*priv
= rsnd_mod_to_priv(ssi_mod
);
230 if (rsnd_is_gen1(priv
))
233 /* disable SSI interrupt if Gen2 */
234 rsnd_mod_write(ssi_mod
, INT_ENABLE
, 0x00000000);
239 static u32
rsnd_src_convert_rate(struct rsnd_dai_stream
*io
,
240 struct rsnd_src
*src
)
242 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
248 if (!rsnd_enable_sync_convert(src
))
249 return src
->convert_rate
;
251 convert_rate
= src
->sync
.val
;
254 convert_rate
= src
->convert_rate
;
257 convert_rate
= runtime
->rate
;
262 unsigned int rsnd_src_get_ssi_rate(struct rsnd_priv
*priv
,
263 struct rsnd_dai_stream
*io
,
264 struct snd_pcm_runtime
*runtime
)
266 struct rsnd_mod
*src_mod
= rsnd_io_to_mod_src(io
);
267 struct rsnd_src
*src
;
268 unsigned int rate
= 0;
271 src
= rsnd_mod_to_src(src_mod
);
274 * return convert rate if SRC is used,
275 * otherwise, return runtime->rate as usual
277 rate
= rsnd_src_convert_rate(io
, src
);
281 rate
= runtime
->rate
;
286 static int rsnd_src_set_convert_rate(struct rsnd_mod
*mod
,
287 struct rsnd_dai_stream
*io
)
289 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
290 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
291 u32 convert_rate
= rsnd_src_convert_rate(io
, src
);
295 fsrate
= 0x0400000 / convert_rate
* runtime
->rate
;
297 /* set/clear soft reset */
298 rsnd_mod_write(mod
, SRC_SWRSR
, 0);
299 rsnd_mod_write(mod
, SRC_SWRSR
, 1);
301 /* Set channel number and output bit length */
302 rsnd_mod_write(mod
, SRC_ADINR
, rsnd_get_adinr(mod
, io
));
304 /* Enable the initial value of IFS */
306 rsnd_mod_write(mod
, SRC_IFSCR
, 1);
308 /* Set initial value of IFS */
309 rsnd_mod_write(mod
, SRC_IFSVR
, fsrate
);
312 /* use DMA transfer */
313 rsnd_mod_write(mod
, SRC_BUSIF_MODE
, 1);
318 static int rsnd_src_hw_params(struct rsnd_mod
*mod
,
319 struct rsnd_dai_stream
*io
,
320 struct snd_pcm_substream
*substream
,
321 struct snd_pcm_hw_params
*fe_params
)
323 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
324 struct snd_soc_pcm_runtime
*fe
= substream
->private_data
;
326 /* default value (mainly for non-DT) */
327 src
->convert_rate
= src
->info
->convert_rate
;
330 * SRC assumes that it is used under DPCM if user want to use
331 * sampling rate convert. Then, SRC should be FE.
332 * And then, this function will be called *after* BE settings.
333 * this means, each BE already has fixuped hw_params.
335 * dpcm_fe_dai_hw_params()
336 * dpcm_be_dai_hw_params()
338 if (fe
->dai_link
->dynamic
) {
339 int stream
= substream
->stream
;
340 struct snd_soc_dpcm
*dpcm
;
341 struct snd_pcm_hw_params
*be_params
;
343 list_for_each_entry(dpcm
, &fe
->dpcm
[stream
].be_clients
, list_be
) {
344 be_params
= &dpcm
->hw_params
;
346 if (params_rate(fe_params
) != params_rate(be_params
))
347 src
->convert_rate
= params_rate(be_params
);
354 static int rsnd_src_init(struct rsnd_mod
*mod
,
355 struct rsnd_priv
*priv
)
357 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
359 rsnd_mod_hw_start(mod
);
363 /* reset sync convert_rate */
367 * Initialize the operation of the SRC internal circuits
368 * see rsnd_src_start()
370 rsnd_mod_write(mod
, SRC_SRCIR
, 1);
375 static int rsnd_src_quit(struct rsnd_mod
*mod
,
376 struct rsnd_dai_stream
*io
,
377 struct rsnd_priv
*priv
)
379 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
380 struct device
*dev
= rsnd_priv_to_dev(priv
);
382 rsnd_mod_hw_stop(mod
);
385 dev_warn(dev
, "%s[%d] under/over flow err = %d\n",
386 rsnd_mod_name(mod
), rsnd_mod_id(mod
), src
->err
);
388 src
->convert_rate
= 0;
390 /* reset sync convert_rate */
396 static int rsnd_src_start(struct rsnd_mod
*mod
)
399 * Cancel the initialization and operate the SRC function
400 * see rsnd_src_init()
402 rsnd_mod_write(mod
, SRC_SRCIR
, 0);
407 static int rsnd_src_stop(struct rsnd_mod
*mod
)
416 static int rsnd_src_set_route_gen1(struct rsnd_dai_stream
*io
,
417 struct rsnd_mod
*mod
)
419 struct src_route_config
{
426 { 0x7, 12, }, /* 3 */
427 { 0x7, 16, }, /* 4 */
428 { 0x7, 20, }, /* 5 */
429 { 0x7, 24, }, /* 6 */
430 { 0x3, 28, }, /* 7 */
431 { 0x3, 30, }, /* 8 */
437 id
= rsnd_mod_id(mod
);
438 if (id
< 0 || id
>= ARRAY_SIZE(routes
))
444 val
= rsnd_io_is_play(io
) ? 0x1 : 0x2;
445 val
= val
<< routes
[id
].shift
;
446 mask
= routes
[id
].mask
<< routes
[id
].shift
;
448 rsnd_mod_bset(mod
, SRC_ROUTE_SEL
, mask
, val
);
453 static int rsnd_src_set_convert_timing_gen1(struct rsnd_dai_stream
*io
,
454 struct rsnd_mod
*mod
)
456 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
457 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
458 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
459 u32 convert_rate
= rsnd_src_convert_rate(io
, src
);
463 int id
= rsnd_mod_id(mod
);
469 shift
= (id
% 4) * 8;
470 mask
= 0x1F << shift
;
473 * ADG is used as source clock if SRC was used,
474 * then, SSI WS is used as destination clock.
475 * SSI WS is used as source clock if SRC is not used
476 * (when playback, source/destination become reverse when capture)
482 ret
= rsnd_adg_set_convert_clk_gen1(priv
, mod
,
485 } else if (8 == id
) {
486 /* use SSI WS, but SRU8 is special */
490 val
= (id
+ 1) << shift
;
498 rsnd_mod_bset(mod
, SRC_TMG_SEL0
, mask
, val
);
501 rsnd_mod_bset(mod
, SRC_TMG_SEL1
, mask
, val
);
504 rsnd_mod_bset(mod
, SRC_TMG_SEL2
, mask
, val
);
511 static int rsnd_src_set_convert_rate_gen1(struct rsnd_mod
*mod
,
512 struct rsnd_dai_stream
*io
)
514 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
517 ret
= rsnd_src_set_convert_rate(mod
, io
);
521 /* Select SRC mode (fixed value) */
522 rsnd_mod_write(mod
, SRC_SRCCR
, 0x00010110);
524 /* Set the restriction value of the FS ratio (98%) */
525 rsnd_mod_write(mod
, SRC_MNFSR
,
526 rsnd_mod_read(mod
, SRC_IFSVR
) / 100 * 98);
528 /* Gen1/Gen2 are not compatible */
529 if (rsnd_src_convert_rate(io
, src
))
530 rsnd_mod_write(mod
, SRC_ROUTE_MODE0
, 1);
532 /* no SRC_BFSSR settings, since SRC_SRCCR::BUFMD is 0 */
537 static int rsnd_src_init_gen1(struct rsnd_mod
*mod
,
538 struct rsnd_dai_stream
*io
,
539 struct rsnd_priv
*priv
)
543 ret
= rsnd_src_init(mod
, priv
);
547 ret
= rsnd_src_set_route_gen1(io
, mod
);
551 ret
= rsnd_src_set_convert_rate_gen1(mod
, io
);
555 ret
= rsnd_src_set_convert_timing_gen1(io
, mod
);
562 static int rsnd_src_start_gen1(struct rsnd_mod
*mod
,
563 struct rsnd_dai_stream
*io
,
564 struct rsnd_priv
*priv
)
566 int id
= rsnd_mod_id(mod
);
568 rsnd_mod_bset(mod
, SRC_ROUTE_CTRL
, (1 << id
), (1 << id
));
570 return rsnd_src_start(mod
);
573 static int rsnd_src_stop_gen1(struct rsnd_mod
*mod
,
574 struct rsnd_dai_stream
*io
,
575 struct rsnd_priv
*priv
)
577 int id
= rsnd_mod_id(mod
);
579 rsnd_mod_bset(mod
, SRC_ROUTE_CTRL
, (1 << id
), 0);
581 return rsnd_src_stop(mod
);
584 static struct rsnd_mod_ops rsnd_src_gen1_ops
= {
586 .dma_req
= rsnd_src_dma_req
,
587 .init
= rsnd_src_init_gen1
,
588 .quit
= rsnd_src_quit
,
589 .start
= rsnd_src_start_gen1
,
590 .stop
= rsnd_src_stop_gen1
,
591 .hw_params
= rsnd_src_hw_params
,
597 #define rsnd_src_irq_enable_gen2(mod) rsnd_src_irq_ctrol_gen2(mod, 1)
598 #define rsnd_src_irq_disable_gen2(mod) rsnd_src_irq_ctrol_gen2(mod, 0)
599 static void rsnd_src_irq_ctrol_gen2(struct rsnd_mod
*mod
, int enable
)
601 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
602 u32 sys_int_val
, int_val
, sys_int_mask
;
603 int irq
= src
->info
->irq
;
604 int id
= rsnd_mod_id(mod
);
607 sys_int_mask
= OUF_SRC(id
);
611 * IRQ is not supported on non-DT
613 * rsnd_src_probe_gen2()
615 if ((irq
<= 0) || !enable
) {
620 rsnd_mod_write(mod
, SRC_INT_ENABLE0
, int_val
);
621 rsnd_mod_bset(mod
, SCU_SYS_INT_EN0
, sys_int_mask
, sys_int_val
);
622 rsnd_mod_bset(mod
, SCU_SYS_INT_EN1
, sys_int_mask
, sys_int_val
);
625 static void rsnd_src_error_clear_gen2(struct rsnd_mod
*mod
)
627 u32 val
= OUF_SRC(rsnd_mod_id(mod
));
629 rsnd_mod_bset(mod
, SCU_SYS_STATUS0
, val
, val
);
630 rsnd_mod_bset(mod
, SCU_SYS_STATUS1
, val
, val
);
633 static bool rsnd_src_error_record_gen2(struct rsnd_mod
*mod
)
635 u32 val
= OUF_SRC(rsnd_mod_id(mod
));
638 if ((rsnd_mod_read(mod
, SCU_SYS_STATUS0
) & val
) ||
639 (rsnd_mod_read(mod
, SCU_SYS_STATUS1
) & val
)) {
640 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
646 /* clear error static */
647 rsnd_src_error_clear_gen2(mod
);
652 static int _rsnd_src_start_gen2(struct rsnd_mod
*mod
,
653 struct rsnd_dai_stream
*io
)
655 u32 val
= rsnd_io_to_mod_dvc(io
) ? 0x01 : 0x11;
657 rsnd_mod_write(mod
, SRC_CTRL
, val
);
659 rsnd_src_error_clear_gen2(mod
);
663 rsnd_src_irq_enable_gen2(mod
);
668 static int _rsnd_src_stop_gen2(struct rsnd_mod
*mod
)
670 rsnd_src_irq_disable_gen2(mod
);
672 rsnd_mod_write(mod
, SRC_CTRL
, 0);
674 rsnd_src_error_record_gen2(mod
);
676 return rsnd_src_stop(mod
);
679 static void __rsnd_src_interrupt_gen2(struct rsnd_mod
*mod
,
680 struct rsnd_dai_stream
*io
)
682 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
684 spin_lock(&priv
->lock
);
686 /* ignore all cases if not working */
687 if (!rsnd_mod_is_working(mod
))
688 goto rsnd_src_interrupt_gen2_out
;
690 if (rsnd_src_error_record_gen2(mod
)) {
691 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
692 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
693 struct device
*dev
= rsnd_priv_to_dev(priv
);
695 dev_dbg(dev
, "%s[%d] restart\n",
696 rsnd_mod_name(mod
), rsnd_mod_id(mod
));
698 _rsnd_src_stop_gen2(mod
);
700 _rsnd_src_start_gen2(mod
, io
);
702 dev_warn(dev
, "no more SRC restart\n");
705 rsnd_src_interrupt_gen2_out
:
706 spin_unlock(&priv
->lock
);
709 static irqreturn_t
rsnd_src_interrupt_gen2(int irq
, void *data
)
711 struct rsnd_mod
*mod
= data
;
713 rsnd_mod_interrupt(mod
, __rsnd_src_interrupt_gen2
);
718 static int rsnd_src_set_convert_rate_gen2(struct rsnd_mod
*mod
,
719 struct rsnd_dai_stream
*io
)
721 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
722 struct device
*dev
= rsnd_priv_to_dev(priv
);
723 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
724 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
725 u32 convert_rate
= rsnd_src_convert_rate(io
, src
);
730 /* 6 - 1/6 are very enough ratio for SRC_BSDSR */
733 else if (convert_rate
> runtime
->rate
)
734 ratio
= 100 * convert_rate
/ runtime
->rate
;
736 ratio
= 100 * runtime
->rate
/ convert_rate
;
739 dev_err(dev
, "FSO/FSI ratio error\n");
743 ret
= rsnd_src_set_convert_rate(mod
, io
);
752 if (rsnd_enable_sync_convert(src
)) {
754 route
|= rsnd_io_is_play(io
) ?
755 (0x1 << 24) : (0x1 << 25);
759 rsnd_mod_write(mod
, SRC_SRCCR
, cr
);
760 rsnd_mod_write(mod
, SRC_ROUTE_MODE0
, route
);
762 switch (rsnd_mod_id(mod
)) {
767 rsnd_mod_write(mod
, SRC_BSDSR
, 0x02400000);
770 rsnd_mod_write(mod
, SRC_BSDSR
, 0x01800000);
774 rsnd_mod_write(mod
, SRC_BSISR
, 0x00100060);
779 static int rsnd_src_set_convert_timing_gen2(struct rsnd_dai_stream
*io
,
780 struct rsnd_mod
*mod
)
782 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
783 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
784 u32 convert_rate
= rsnd_src_convert_rate(io
, src
);
788 ret
= rsnd_adg_set_convert_clk_gen2(mod
, io
,
792 ret
= rsnd_adg_set_convert_timing_gen2(mod
, io
);
797 static int rsnd_src_probe_gen2(struct rsnd_mod
*mod
,
798 struct rsnd_dai_stream
*io
,
799 struct rsnd_priv
*priv
)
801 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
802 struct device
*dev
= rsnd_priv_to_dev(priv
);
803 int irq
= src
->info
->irq
;
808 * IRQ is not supported on non-DT
810 * rsnd_src_irq_enable_gen2()
812 ret
= devm_request_irq(dev
, irq
,
813 rsnd_src_interrupt_gen2
,
820 ret
= rsnd_dma_init(io
,
821 rsnd_mod_to_dma(mod
),
827 static int rsnd_src_remove_gen2(struct rsnd_mod
*mod
,
828 struct rsnd_dai_stream
*io
,
829 struct rsnd_priv
*priv
)
831 rsnd_dma_quit(io
, rsnd_mod_to_dma(mod
));
836 static int rsnd_src_init_gen2(struct rsnd_mod
*mod
,
837 struct rsnd_dai_stream
*io
,
838 struct rsnd_priv
*priv
)
842 ret
= rsnd_src_init(mod
, priv
);
846 ret
= rsnd_src_set_convert_rate_gen2(mod
, io
);
850 ret
= rsnd_src_set_convert_timing_gen2(io
, mod
);
857 static int rsnd_src_start_gen2(struct rsnd_mod
*mod
,
858 struct rsnd_dai_stream
*io
,
859 struct rsnd_priv
*priv
)
861 rsnd_dma_start(io
, rsnd_mod_to_dma(mod
));
863 return _rsnd_src_start_gen2(mod
, io
);
866 static int rsnd_src_stop_gen2(struct rsnd_mod
*mod
,
867 struct rsnd_dai_stream
*io
,
868 struct rsnd_priv
*priv
)
872 ret
= _rsnd_src_stop_gen2(mod
);
874 rsnd_dma_stop(io
, rsnd_mod_to_dma(mod
));
879 static void rsnd_src_reconvert_update(struct rsnd_dai_stream
*io
,
880 struct rsnd_mod
*mod
)
882 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
883 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
884 u32 convert_rate
= rsnd_src_convert_rate(io
, src
);
891 convert_rate
= runtime
->rate
;
893 fsrate
= 0x0400000 / convert_rate
* runtime
->rate
;
896 rsnd_mod_write(mod
, SRC_IFSVR
, fsrate
);
899 static int rsnd_src_pcm_new(struct rsnd_mod
*mod
,
900 struct rsnd_dai_stream
*io
,
901 struct snd_soc_pcm_runtime
*rtd
)
903 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
904 struct rsnd_dai
*rdai
= rsnd_io_to_rdai(io
);
905 struct rsnd_src
*src
= rsnd_mod_to_src(mod
);
909 * enable SRC sync convert if possible
913 * Gen1 is not supported
915 if (rsnd_is_gen1(priv
))
919 * SRC sync convert needs clock master
921 if (!rsnd_rdai_is_clk_master(rdai
))
925 * We can't use SRC sync convert
928 if (rsnd_io_to_mod_dvc(io
))
932 * enable sync convert
934 ret
= rsnd_kctrl_new_s(mod
, io
, rtd
,
935 rsnd_io_is_play(io
) ?
936 "SRC Out Rate Switch" :
937 "SRC In Rate Switch",
938 rsnd_src_reconvert_update
,
943 ret
= rsnd_kctrl_new_s(mod
, io
, rtd
,
944 rsnd_io_is_play(io
) ?
947 rsnd_src_reconvert_update
,
953 static struct rsnd_mod_ops rsnd_src_gen2_ops
= {
955 .dma_req
= rsnd_src_dma_req
,
956 .probe
= rsnd_src_probe_gen2
,
957 .remove
= rsnd_src_remove_gen2
,
958 .init
= rsnd_src_init_gen2
,
959 .quit
= rsnd_src_quit
,
960 .start
= rsnd_src_start_gen2
,
961 .stop
= rsnd_src_stop_gen2
,
962 .hw_params
= rsnd_src_hw_params
,
963 .pcm_new
= rsnd_src_pcm_new
,
966 struct rsnd_mod
*rsnd_src_mod_get(struct rsnd_priv
*priv
, int id
)
968 if (WARN_ON(id
< 0 || id
>= rsnd_src_nr(priv
)))
971 return &((struct rsnd_src
*)(priv
->src
) + id
)->mod
;
974 static void rsnd_of_parse_src(struct platform_device
*pdev
,
975 const struct rsnd_of_data
*of_data
,
976 struct rsnd_priv
*priv
)
978 struct device_node
*src_node
;
979 struct device_node
*np
;
980 struct rcar_snd_info
*info
= rsnd_priv_to_info(priv
);
981 struct rsnd_src_platform_info
*src_info
;
982 struct device
*dev
= &pdev
->dev
;
988 src_node
= rsnd_src_of_node(priv
);
992 nr
= of_get_child_count(src_node
);
994 goto rsnd_of_parse_src_end
;
996 src_info
= devm_kzalloc(dev
,
997 sizeof(struct rsnd_src_platform_info
) * nr
,
1000 dev_err(dev
, "src info allocation error\n");
1001 goto rsnd_of_parse_src_end
;
1004 info
->src_info
= src_info
;
1005 info
->src_info_nr
= nr
;
1008 for_each_child_of_node(src_node
, np
) {
1009 src_info
[i
].irq
= irq_of_parse_and_map(np
, 0);
1014 rsnd_of_parse_src_end
:
1015 of_node_put(src_node
);
1018 int rsnd_src_probe(struct platform_device
*pdev
,
1019 const struct rsnd_of_data
*of_data
,
1020 struct rsnd_priv
*priv
)
1022 struct rcar_snd_info
*info
= rsnd_priv_to_info(priv
);
1023 struct device
*dev
= rsnd_priv_to_dev(priv
);
1024 struct rsnd_src
*src
;
1025 struct rsnd_mod_ops
*ops
;
1027 char name
[RSND_SRC_NAME_SIZE
];
1031 if (rsnd_is_gen1(priv
))
1032 ops
= &rsnd_src_gen1_ops
;
1033 if (rsnd_is_gen2(priv
))
1034 ops
= &rsnd_src_gen2_ops
;
1036 dev_err(dev
, "unknown Generation\n");
1040 rsnd_of_parse_src(pdev
, of_data
, priv
);
1045 nr
= info
->src_info_nr
;
1049 src
= devm_kzalloc(dev
, sizeof(*src
) * nr
, GFP_KERNEL
);
1051 dev_err(dev
, "SRC allocate failed\n");
1058 for_each_rsnd_src(src
, priv
, i
) {
1059 snprintf(name
, RSND_SRC_NAME_SIZE
, "%s.%d",
1062 clk
= devm_clk_get(dev
, name
);
1064 return PTR_ERR(clk
);
1066 src
->info
= &info
->src_info
[i
];
1068 ret
= rsnd_mod_init(priv
, &src
->mod
, ops
, clk
, RSND_MOD_SRC
, i
);
1076 void rsnd_src_remove(struct platform_device
*pdev
,
1077 struct rsnd_priv
*priv
)
1079 struct rsnd_src
*src
;
1082 for_each_rsnd_src(src
, priv
, i
) {
1083 rsnd_mod_quit(&src
->mod
);