mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-06 07:26:39 +07:00
7674bec4fc
Current BSDSR/BSDISR are using temporary/generic settings, but it can't handle all SRCx/SoC. It needs to handle correctry. Otherwise, sampling rate converted sound channel will be broken if it was TDM. One note is that it needs to overwrite settings on E3 case. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: chaoliang qin <chaoliang.qin.jg@renesas.com> Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
704 lines
14 KiB
C
704 lines
14 KiB
C
// SPDX-License-Identifier: GPL-2.0
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//
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// Renesas R-Car SRC support
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//
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// Copyright (C) 2013 Renesas Solutions Corp.
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// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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/*
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* you can enable below define if you don't need
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* SSI interrupt status debug message when debugging
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* see rsnd_dbg_irq_status()
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*
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* #define RSND_DEBUG_NO_IRQ_STATUS 1
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*/
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#include "rsnd.h"
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#include <linux/sys_soc.h>
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#define SRC_NAME "src"
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/* SCU_SYSTEM_STATUS0/1 */
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#define OUF_SRC(id) ((1 << (id + 16)) | (1 << id))
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struct rsnd_src {
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struct rsnd_mod mod;
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struct rsnd_mod *dma;
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struct rsnd_kctrl_cfg_s sen; /* sync convert enable */
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struct rsnd_kctrl_cfg_s sync; /* sync convert */
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int irq;
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};
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#define RSND_SRC_NAME_SIZE 16
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#define rsnd_src_get(priv, id) ((struct rsnd_src *)(priv->src) + id)
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#define rsnd_src_nr(priv) ((priv)->src_nr)
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#define rsnd_src_sync_is_enabled(mod) (rsnd_mod_to_src(mod)->sen.val)
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#define rsnd_mod_to_src(_mod) \
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container_of((_mod), struct rsnd_src, mod)
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#define for_each_rsnd_src(pos, priv, i) \
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for ((i) = 0; \
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((i) < rsnd_src_nr(priv)) && \
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((pos) = (struct rsnd_src *)(priv)->src + i); \
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i++)
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/*
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* image of SRC (Sampling Rate Converter)
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*
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* 96kHz <-> +-----+ 48kHz +-----+ 48kHz +-------+
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* 48kHz <-> | SRC | <------> | SSI | <-----> | codec |
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* 44.1kHz <-> +-----+ +-----+ +-------+
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* ...
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*
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*/
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static void rsnd_src_activation(struct rsnd_mod *mod)
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{
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rsnd_mod_write(mod, SRC_SWRSR, 0);
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rsnd_mod_write(mod, SRC_SWRSR, 1);
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}
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static void rsnd_src_halt(struct rsnd_mod *mod)
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{
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rsnd_mod_write(mod, SRC_SRCIR, 1);
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rsnd_mod_write(mod, SRC_SWRSR, 0);
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}
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static struct dma_chan *rsnd_src_dma_req(struct rsnd_dai_stream *io,
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struct rsnd_mod *mod)
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{
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struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
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int is_play = rsnd_io_is_play(io);
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return rsnd_dma_request_channel(rsnd_src_of_node(priv),
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mod,
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is_play ? "rx" : "tx");
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}
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static u32 rsnd_src_convert_rate(struct rsnd_dai_stream *io,
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struct rsnd_mod *mod)
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{
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struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
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struct rsnd_src *src = rsnd_mod_to_src(mod);
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u32 convert_rate;
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if (!runtime)
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return 0;
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if (!rsnd_src_sync_is_enabled(mod))
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return rsnd_io_converted_rate(io);
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convert_rate = src->sync.val;
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if (!convert_rate)
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convert_rate = rsnd_io_converted_rate(io);
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if (!convert_rate)
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convert_rate = runtime->rate;
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return convert_rate;
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}
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unsigned int rsnd_src_get_rate(struct rsnd_priv *priv,
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struct rsnd_dai_stream *io,
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int is_in)
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{
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struct rsnd_mod *src_mod = rsnd_io_to_mod_src(io);
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struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
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unsigned int rate = 0;
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int is_play = rsnd_io_is_play(io);
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/*
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* Playback
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* runtime_rate -> [SRC] -> convert_rate
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*
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* Capture
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* convert_rate -> [SRC] -> runtime_rate
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*/
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if (is_play == is_in)
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return runtime->rate;
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/*
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* return convert rate if SRC is used,
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* otherwise, return runtime->rate as usual
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*/
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if (src_mod)
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rate = rsnd_src_convert_rate(io, src_mod);
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if (!rate)
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rate = runtime->rate;
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return rate;
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}
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const static u32 bsdsr_table_pattern1[] = {
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0x01800000, /* 6 - 1/6 */
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0x01000000, /* 6 - 1/4 */
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0x00c00000, /* 6 - 1/3 */
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0x00800000, /* 6 - 1/2 */
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0x00600000, /* 6 - 2/3 */
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0x00400000, /* 6 - 1 */
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};
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const static u32 bsdsr_table_pattern2[] = {
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0x02400000, /* 6 - 1/6 */
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0x01800000, /* 6 - 1/4 */
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0x01200000, /* 6 - 1/3 */
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0x00c00000, /* 6 - 1/2 */
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0x00900000, /* 6 - 2/3 */
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0x00600000, /* 6 - 1 */
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};
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const static u32 bsisr_table[] = {
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0x00100060, /* 6 - 1/6 */
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0x00100040, /* 6 - 1/4 */
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0x00100030, /* 6 - 1/3 */
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0x00100020, /* 6 - 1/2 */
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0x00100020, /* 6 - 2/3 */
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0x00100020, /* 6 - 1 */
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};
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const static u32 chan288888[] = {
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0x00000006, /* 1 to 2 */
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0x000001fe, /* 1 to 8 */
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0x000001fe, /* 1 to 8 */
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0x000001fe, /* 1 to 8 */
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0x000001fe, /* 1 to 8 */
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0x000001fe, /* 1 to 8 */
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};
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const static u32 chan244888[] = {
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0x00000006, /* 1 to 2 */
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0x0000001e, /* 1 to 4 */
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0x0000001e, /* 1 to 4 */
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0x000001fe, /* 1 to 8 */
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0x000001fe, /* 1 to 8 */
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0x000001fe, /* 1 to 8 */
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};
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const static u32 chan222222[] = {
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0x00000006, /* 1 to 2 */
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0x00000006, /* 1 to 2 */
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0x00000006, /* 1 to 2 */
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0x00000006, /* 1 to 2 */
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0x00000006, /* 1 to 2 */
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0x00000006, /* 1 to 2 */
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};
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static const struct soc_device_attribute ov_soc[] = {
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{ .soc_id = "r8a77990" }, /* E3 */
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{ /* sentinel */ }
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};
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static void rsnd_src_set_convert_rate(struct rsnd_dai_stream *io,
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struct rsnd_mod *mod)
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{
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struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
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struct device *dev = rsnd_priv_to_dev(priv);
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struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
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const struct soc_device_attribute *soc = soc_device_match(ov_soc);
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int is_play = rsnd_io_is_play(io);
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int use_src = 0;
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u32 fin, fout;
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u32 ifscr, fsrate, adinr;
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u32 cr, route;
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u32 i_busif, o_busif, tmp;
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const u32 *bsdsr_table;
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const u32 *chptn;
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uint ratio;
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int chan;
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int idx;
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if (!runtime)
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return;
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fin = rsnd_src_get_in_rate(priv, io);
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fout = rsnd_src_get_out_rate(priv, io);
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chan = rsnd_runtime_channel_original(io);
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/* 6 - 1/6 are very enough ratio for SRC_BSDSR */
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if (fin == fout)
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ratio = 0;
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else if (fin > fout)
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ratio = 100 * fin / fout;
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else
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ratio = 100 * fout / fin;
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if (ratio > 600) {
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dev_err(dev, "FSO/FSI ratio error\n");
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return;
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}
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use_src = (fin != fout) | rsnd_src_sync_is_enabled(mod);
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/*
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* SRC_ADINR
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*/
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adinr = rsnd_get_adinr_bit(mod, io) | chan;
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/*
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* SRC_IFSCR / SRC_IFSVR
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*/
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ifscr = 0;
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fsrate = 0;
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if (use_src) {
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u64 n;
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ifscr = 1;
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n = (u64)0x0400000 * fin;
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do_div(n, fout);
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fsrate = n;
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}
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/*
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* SRC_SRCCR / SRC_ROUTE_MODE0
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*/
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cr = 0x00011110;
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route = 0x0;
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if (use_src) {
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route = 0x1;
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if (rsnd_src_sync_is_enabled(mod)) {
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cr |= 0x1;
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route |= rsnd_io_is_play(io) ?
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(0x1 << 24) : (0x1 << 25);
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}
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}
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/*
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* SRC_BSDSR / SRC_BSISR
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*
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* see
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* Combination of Register Setting Related to
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* FSO/FSI Ratio and Channel, Latency
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*/
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switch (rsnd_mod_id(mod)) {
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case 0:
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chptn = chan288888;
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bsdsr_table = bsdsr_table_pattern1;
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break;
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case 1:
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case 3:
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case 4:
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chptn = chan244888;
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bsdsr_table = bsdsr_table_pattern1;
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break;
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case 2:
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case 9:
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chptn = chan222222;
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bsdsr_table = bsdsr_table_pattern1;
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break;
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case 5:
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case 6:
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case 7:
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case 8:
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chptn = chan222222;
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bsdsr_table = bsdsr_table_pattern2;
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break;
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default:
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goto convert_rate_err;
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}
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/*
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* E3 need to overwrite
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*/
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if (soc)
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switch (rsnd_mod_id(mod)) {
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case 0:
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case 4:
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chptn = chan222222;
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}
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for (idx = 0; idx < ARRAY_SIZE(chan222222); idx++)
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if (chptn[idx] & (1 << chan))
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break;
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if (chan > 8 ||
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idx >= ARRAY_SIZE(chan222222))
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goto convert_rate_err;
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/* BUSIF_MODE */
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tmp = rsnd_get_busif_shift(io, mod);
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i_busif = ( is_play ? tmp : 0) | 1;
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o_busif = (!is_play ? tmp : 0) | 1;
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rsnd_mod_write(mod, SRC_ROUTE_MODE0, route);
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rsnd_mod_write(mod, SRC_SRCIR, 1); /* initialize */
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rsnd_mod_write(mod, SRC_ADINR, adinr);
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rsnd_mod_write(mod, SRC_IFSCR, ifscr);
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rsnd_mod_write(mod, SRC_IFSVR, fsrate);
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rsnd_mod_write(mod, SRC_SRCCR, cr);
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rsnd_mod_write(mod, SRC_BSDSR, bsdsr_table[idx]);
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rsnd_mod_write(mod, SRC_BSISR, bsisr_table[idx]);
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rsnd_mod_write(mod, SRC_SRCIR, 0); /* cancel initialize */
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rsnd_mod_write(mod, SRC_I_BUSIF_MODE, i_busif);
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rsnd_mod_write(mod, SRC_O_BUSIF_MODE, o_busif);
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rsnd_mod_write(mod, SRC_BUSIF_DALIGN, rsnd_get_dalign(mod, io));
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rsnd_adg_set_src_timesel_gen2(mod, io, fin, fout);
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return;
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convert_rate_err:
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dev_err(dev, "unknown BSDSR/BSDIR settings\n");
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}
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static int rsnd_src_irq(struct rsnd_mod *mod,
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struct rsnd_dai_stream *io,
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struct rsnd_priv *priv,
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int enable)
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{
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struct rsnd_src *src = rsnd_mod_to_src(mod);
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u32 sys_int_val, int_val, sys_int_mask;
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int irq = src->irq;
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int id = rsnd_mod_id(mod);
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sys_int_val =
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sys_int_mask = OUF_SRC(id);
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int_val = 0x3300;
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/*
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* IRQ is not supported on non-DT
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* see
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* rsnd_src_probe_()
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*/
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if ((irq <= 0) || !enable) {
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sys_int_val = 0;
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int_val = 0;
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}
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/*
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* WORKAROUND
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*
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* ignore over flow error when rsnd_src_sync_is_enabled()
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*/
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if (rsnd_src_sync_is_enabled(mod))
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sys_int_val = sys_int_val & 0xffff;
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rsnd_mod_write(mod, SRC_INT_ENABLE0, int_val);
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rsnd_mod_bset(mod, SCU_SYS_INT_EN0, sys_int_mask, sys_int_val);
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rsnd_mod_bset(mod, SCU_SYS_INT_EN1, sys_int_mask, sys_int_val);
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return 0;
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}
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static void rsnd_src_status_clear(struct rsnd_mod *mod)
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{
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u32 val = OUF_SRC(rsnd_mod_id(mod));
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rsnd_mod_write(mod, SCU_SYS_STATUS0, val);
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rsnd_mod_write(mod, SCU_SYS_STATUS1, val);
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}
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static bool rsnd_src_error_occurred(struct rsnd_mod *mod)
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{
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struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
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struct device *dev = rsnd_priv_to_dev(priv);
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u32 val0, val1;
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u32 status0, status1;
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bool ret = false;
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val0 = val1 = OUF_SRC(rsnd_mod_id(mod));
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/*
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* WORKAROUND
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*
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* ignore over flow error when rsnd_src_sync_is_enabled()
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*/
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if (rsnd_src_sync_is_enabled(mod))
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val0 = val0 & 0xffff;
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status0 = rsnd_mod_read(mod, SCU_SYS_STATUS0);
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status1 = rsnd_mod_read(mod, SCU_SYS_STATUS1);
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if ((status0 & val0) || (status1 & val1)) {
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rsnd_dbg_irq_status(dev, "%s err status : 0x%08x, 0x%08x\n",
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rsnd_mod_name(mod), status0, status1);
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ret = true;
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}
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return ret;
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}
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static int rsnd_src_start(struct rsnd_mod *mod,
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struct rsnd_dai_stream *io,
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struct rsnd_priv *priv)
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{
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u32 val;
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/*
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* WORKAROUND
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*
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* Enable SRC output if you want to use sync convert together with DVC
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*/
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val = (rsnd_io_to_mod_dvc(io) && !rsnd_src_sync_is_enabled(mod)) ?
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0x01 : 0x11;
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rsnd_mod_write(mod, SRC_CTRL, val);
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return 0;
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}
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static int rsnd_src_stop(struct rsnd_mod *mod,
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struct rsnd_dai_stream *io,
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struct rsnd_priv *priv)
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{
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rsnd_mod_write(mod, SRC_CTRL, 0);
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return 0;
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}
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static int rsnd_src_init(struct rsnd_mod *mod,
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struct rsnd_dai_stream *io,
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struct rsnd_priv *priv)
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{
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struct rsnd_src *src = rsnd_mod_to_src(mod);
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/* reset sync convert_rate */
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src->sync.val = 0;
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rsnd_mod_power_on(mod);
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rsnd_src_activation(mod);
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rsnd_src_set_convert_rate(io, mod);
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rsnd_src_status_clear(mod);
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return 0;
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}
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static int rsnd_src_quit(struct rsnd_mod *mod,
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struct rsnd_dai_stream *io,
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struct rsnd_priv *priv)
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{
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struct rsnd_src *src = rsnd_mod_to_src(mod);
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rsnd_src_halt(mod);
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rsnd_mod_power_off(mod);
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/* reset sync convert_rate */
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src->sync.val = 0;
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return 0;
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}
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static void __rsnd_src_interrupt(struct rsnd_mod *mod,
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struct rsnd_dai_stream *io)
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{
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struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
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bool stop = false;
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spin_lock(&priv->lock);
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/* ignore all cases if not working */
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if (!rsnd_io_is_working(io))
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goto rsnd_src_interrupt_out;
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if (rsnd_src_error_occurred(mod))
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stop = true;
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rsnd_src_status_clear(mod);
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rsnd_src_interrupt_out:
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spin_unlock(&priv->lock);
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if (stop)
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snd_pcm_stop_xrun(io->substream);
|
|
}
|
|
|
|
static irqreturn_t rsnd_src_interrupt(int irq, void *data)
|
|
{
|
|
struct rsnd_mod *mod = data;
|
|
|
|
rsnd_mod_interrupt(mod, __rsnd_src_interrupt);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static int rsnd_src_probe_(struct rsnd_mod *mod,
|
|
struct rsnd_dai_stream *io,
|
|
struct rsnd_priv *priv)
|
|
{
|
|
struct rsnd_src *src = rsnd_mod_to_src(mod);
|
|
struct device *dev = rsnd_priv_to_dev(priv);
|
|
int irq = src->irq;
|
|
int ret;
|
|
|
|
if (irq > 0) {
|
|
/*
|
|
* IRQ is not supported on non-DT
|
|
* see
|
|
* rsnd_src_irq()
|
|
*/
|
|
ret = devm_request_irq(dev, irq,
|
|
rsnd_src_interrupt,
|
|
IRQF_SHARED,
|
|
dev_name(dev), mod);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
ret = rsnd_dma_attach(io, mod, &src->dma);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int rsnd_src_pcm_new(struct rsnd_mod *mod,
|
|
struct rsnd_dai_stream *io,
|
|
struct snd_soc_pcm_runtime *rtd)
|
|
{
|
|
struct rsnd_src *src = rsnd_mod_to_src(mod);
|
|
int ret;
|
|
|
|
/*
|
|
* enable SRC sync convert if possible
|
|
*/
|
|
|
|
/*
|
|
* It can't use SRC Synchronous convert
|
|
* when Capture if it uses CMD
|
|
*/
|
|
if (rsnd_io_to_mod_cmd(io) && !rsnd_io_is_play(io))
|
|
return 0;
|
|
|
|
/*
|
|
* enable sync convert
|
|
*/
|
|
ret = rsnd_kctrl_new_s(mod, io, rtd,
|
|
rsnd_io_is_play(io) ?
|
|
"SRC Out Rate Switch" :
|
|
"SRC In Rate Switch",
|
|
rsnd_kctrl_accept_anytime,
|
|
rsnd_src_set_convert_rate,
|
|
&src->sen, 1);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = rsnd_kctrl_new_s(mod, io, rtd,
|
|
rsnd_io_is_play(io) ?
|
|
"SRC Out Rate" :
|
|
"SRC In Rate",
|
|
rsnd_kctrl_accept_runtime,
|
|
rsnd_src_set_convert_rate,
|
|
&src->sync, 192000);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static struct rsnd_mod_ops rsnd_src_ops = {
|
|
.name = SRC_NAME,
|
|
.dma_req = rsnd_src_dma_req,
|
|
.probe = rsnd_src_probe_,
|
|
.init = rsnd_src_init,
|
|
.quit = rsnd_src_quit,
|
|
.start = rsnd_src_start,
|
|
.stop = rsnd_src_stop,
|
|
.irq = rsnd_src_irq,
|
|
.pcm_new = rsnd_src_pcm_new,
|
|
.get_status = rsnd_mod_get_status,
|
|
};
|
|
|
|
struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id)
|
|
{
|
|
if (WARN_ON(id < 0 || id >= rsnd_src_nr(priv)))
|
|
id = 0;
|
|
|
|
return rsnd_mod_get(rsnd_src_get(priv, id));
|
|
}
|
|
|
|
int rsnd_src_probe(struct rsnd_priv *priv)
|
|
{
|
|
struct device_node *node;
|
|
struct device_node *np;
|
|
struct device *dev = rsnd_priv_to_dev(priv);
|
|
struct rsnd_src *src;
|
|
struct clk *clk;
|
|
char name[RSND_SRC_NAME_SIZE];
|
|
int i, nr, ret;
|
|
|
|
/* This driver doesn't support Gen1 at this point */
|
|
if (rsnd_is_gen1(priv))
|
|
return 0;
|
|
|
|
node = rsnd_src_of_node(priv);
|
|
if (!node)
|
|
return 0; /* not used is not error */
|
|
|
|
nr = of_get_child_count(node);
|
|
if (!nr) {
|
|
ret = -EINVAL;
|
|
goto rsnd_src_probe_done;
|
|
}
|
|
|
|
src = devm_kcalloc(dev, nr, sizeof(*src), GFP_KERNEL);
|
|
if (!src) {
|
|
ret = -ENOMEM;
|
|
goto rsnd_src_probe_done;
|
|
}
|
|
|
|
priv->src_nr = nr;
|
|
priv->src = src;
|
|
|
|
i = 0;
|
|
for_each_child_of_node(node, np) {
|
|
if (!of_device_is_available(np))
|
|
goto skip;
|
|
|
|
src = rsnd_src_get(priv, i);
|
|
|
|
snprintf(name, RSND_SRC_NAME_SIZE, "%s.%d",
|
|
SRC_NAME, i);
|
|
|
|
src->irq = irq_of_parse_and_map(np, 0);
|
|
if (!src->irq) {
|
|
ret = -EINVAL;
|
|
of_node_put(np);
|
|
goto rsnd_src_probe_done;
|
|
}
|
|
|
|
clk = devm_clk_get(dev, name);
|
|
if (IS_ERR(clk)) {
|
|
ret = PTR_ERR(clk);
|
|
of_node_put(np);
|
|
goto rsnd_src_probe_done;
|
|
}
|
|
|
|
ret = rsnd_mod_init(priv, rsnd_mod_get(src),
|
|
&rsnd_src_ops, clk, RSND_MOD_SRC, i);
|
|
if (ret) {
|
|
of_node_put(np);
|
|
goto rsnd_src_probe_done;
|
|
}
|
|
|
|
skip:
|
|
i++;
|
|
}
|
|
|
|
ret = 0;
|
|
|
|
rsnd_src_probe_done:
|
|
of_node_put(node);
|
|
|
|
return ret;
|
|
}
|
|
|
|
void rsnd_src_remove(struct rsnd_priv *priv)
|
|
{
|
|
struct rsnd_src *src;
|
|
int i;
|
|
|
|
for_each_rsnd_src(src, priv, i) {
|
|
rsnd_mod_quit(rsnd_mod_get(src));
|
|
}
|
|
}
|