From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com
SRC has Sync/Async mode, and it can't use Sync mode when Capture with CMD. In Async mode, it needs to care about in/out SRC rate for settings, but current driver supporting Playback case only. This patch supports Capture case.
Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- sound/soc/sh/rcar/adg.c | 204 ++++++++++++++++++++++++++--------------------- sound/soc/sh/rcar/rsnd.h | 8 +- sound/soc/sh/rcar/src.c | 26 +++--- 3 files changed, 128 insertions(+), 110 deletions(-)
diff --git a/sound/soc/sh/rcar/adg.c b/sound/soc/sh/rcar/adg.c index d74e1cc..f7e164c 100644 --- a/sound/soc/sh/rcar/adg.c +++ b/sound/soc/sh/rcar/adg.c @@ -90,6 +90,108 @@ static u32 rsnd_adg_ssi_ws_timing_gen2(struct rsnd_dai_stream *io) return (0x6 + ws) << 8; }
+static void __rsnd_adg_get_timesel_ratio(struct rsnd_priv *priv, + struct rsnd_dai_stream *io, + unsigned int target_rate, + unsigned int *target_val, + unsigned int *target_en) +{ + struct rsnd_adg *adg = rsnd_priv_to_adg(priv); + struct device *dev = rsnd_priv_to_dev(priv); + int idx, sel, div, step; + unsigned int val, en; + unsigned int min, diff; + unsigned int sel_rate[] = { + clk_get_rate(adg->clk[CLKA]), /* 0000: CLKA */ + clk_get_rate(adg->clk[CLKB]), /* 0001: CLKB */ + clk_get_rate(adg->clk[CLKC]), /* 0010: CLKC */ + adg->rbga_rate_for_441khz, /* 0011: RBGA */ + adg->rbgb_rate_for_48khz, /* 0100: RBGB */ + }; + + min = ~0; + val = 0; + en = 0; + for (sel = 0; sel < ARRAY_SIZE(sel_rate); sel++) { + idx = 0; + step = 2; + + if (!sel_rate[sel]) + continue; + + for (div = 2; div <= 98304; div += step) { + diff = abs(target_rate - sel_rate[sel] / div); + if (min > diff) { + val = (sel << 8) | idx; + min = diff; + en = 1 << (sel + 1); /* fixme */ + } + + /* + * step of 0_0000 / 0_0001 / 0_1101 + * are out of order + */ + if ((idx > 2) && (idx % 2)) + step *= 2; + if (idx == 0x1c) { + div += step; + step *= 2; + } + idx++; + } + } + + if (min == ~0) { + dev_err(dev, "no Input clock\n"); + return; + } + + *target_val = val; + if (target_en) + *target_en = en; +} + +static void rsnd_adg_get_timesel_ratio(struct rsnd_priv *priv, + struct rsnd_dai_stream *io, + unsigned int in_rate, + unsigned int out_rate, + u32 *in, u32 *out, u32 *en) +{ + struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); + unsigned int target_rate; + u32 *target_val; + u32 _in; + u32 _out; + u32 _en; + + /* default = SSI WS */ + _in = + _out = rsnd_adg_ssi_ws_timing_gen2(io); + + target_rate = 0; + target_val = NULL; + _en = 0; + if (runtime->rate != in_rate) { + target_rate = out_rate; + target_val = &_out; + } else if (runtime->rate != out_rate) { + target_rate = in_rate; + target_val = &_in; + } + + if (target_rate) + __rsnd_adg_get_timesel_ratio(priv, io, + target_rate, + target_val, &_en); + + if (in) + *in = _in; + if (out) + *out = _out; + if (en) + *en = _en; +} + int rsnd_adg_set_cmd_timsel_gen2(struct rsnd_mod *cmd_mod, struct rsnd_dai_stream *io) { @@ -110,25 +212,24 @@ int rsnd_adg_set_cmd_timsel_gen2(struct rsnd_mod *cmd_mod, return 0; }
-static int rsnd_adg_set_src_timsel_gen2(struct rsnd_mod *src_mod, - struct rsnd_dai_stream *io, - u32 timsel) +int rsnd_adg_set_src_timesel_gen2(struct rsnd_mod *src_mod, + struct rsnd_dai_stream *io, + unsigned int in_rate, + unsigned int out_rate) { struct rsnd_priv *priv = rsnd_mod_to_priv(src_mod); struct rsnd_adg *adg = rsnd_priv_to_adg(priv); struct rsnd_mod *adg_mod = rsnd_mod_get(adg); - int is_play = rsnd_io_is_play(io); + u32 in, out; + u32 mask, en; int id = rsnd_mod_id(src_mod); int shift = (id % 2) ? 16 : 0; - u32 mask, ws; - u32 in, out;
rsnd_mod_confirm_src(src_mod);
- ws = rsnd_adg_ssi_ws_timing_gen2(io); - - in = (is_play) ? timsel : ws; - out = (is_play) ? ws : timsel; + rsnd_adg_get_timesel_ratio(priv, io, + in_rate, out_rate, + &in, &out, &en);
in = in << shift; out = out << shift; @@ -157,91 +258,12 @@ static int rsnd_adg_set_src_timsel_gen2(struct rsnd_mod *src_mod, break; }
- return 0; -} - -int rsnd_adg_set_convert_clk_gen2(struct rsnd_mod *src_mod, - struct rsnd_dai_stream *io, - unsigned int src_rate, - unsigned int dst_rate) -{ - struct rsnd_priv *priv = rsnd_mod_to_priv(src_mod); - struct rsnd_adg *adg = rsnd_priv_to_adg(priv); - struct rsnd_mod *adg_mod = rsnd_mod_get(adg); - struct device *dev = rsnd_priv_to_dev(priv); - int idx, sel, div, step, ret; - u32 val, en; - unsigned int min, diff; - unsigned int sel_rate [] = { - clk_get_rate(adg->clk[CLKA]), /* 0000: CLKA */ - clk_get_rate(adg->clk[CLKB]), /* 0001: CLKB */ - clk_get_rate(adg->clk[CLKC]), /* 0010: CLKC */ - adg->rbga_rate_for_441khz, /* 0011: RBGA */ - adg->rbgb_rate_for_48khz, /* 0100: RBGB */ - }; - - rsnd_mod_confirm_src(src_mod); - - min = ~0; - val = 0; - en = 0; - for (sel = 0; sel < ARRAY_SIZE(sel_rate); sel++) { - idx = 0; - step = 2; - - if (!sel_rate[sel]) - continue; - - for (div = 2; div <= 98304; div += step) { - diff = abs(src_rate - sel_rate[sel] / div); - if (min > diff) { - val = (sel << 8) | idx; - min = diff; - en = 1 << (sel + 1); /* fixme */ - } - - /* - * step of 0_0000 / 0_0001 / 0_1101 - * are out of order - */ - if ((idx > 2) && (idx % 2)) - step *= 2; - if (idx == 0x1c) { - div += step; - step *= 2; - } - idx++; - } - } - - if (min == ~0) { - dev_err(dev, "no Input clock\n"); - return -EIO; - } - - ret = rsnd_adg_set_src_timsel_gen2(src_mod, io, val); - if (ret < 0) { - dev_err(dev, "timsel error\n"); - return ret; - } - - rsnd_mod_bset(adg_mod, DIV_EN, en, en); - - dev_dbg(dev, "convert rate %d <-> %d\n", src_rate, dst_rate); + if (en) + rsnd_mod_bset(adg_mod, DIV_EN, en, en);
return 0; }
-int rsnd_adg_set_convert_timing_gen2(struct rsnd_mod *src_mod, - struct rsnd_dai_stream *io) -{ - u32 val = rsnd_adg_ssi_ws_timing_gen2(io); - - rsnd_mod_confirm_src(src_mod); - - return rsnd_adg_set_src_timsel_gen2(src_mod, io, val); -} - static void rsnd_adg_set_ssi_clk(struct rsnd_mod *ssi_mod, u32 val) { struct rsnd_priv *priv = rsnd_mod_to_priv(ssi_mod); diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h index 4b77f33..fc89a67 100644 --- a/sound/soc/sh/rcar/rsnd.h +++ b/sound/soc/sh/rcar/rsnd.h @@ -446,12 +446,10 @@ int rsnd_adg_ssi_clk_stop(struct rsnd_mod *mod); int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *mod, unsigned int rate); int rsnd_adg_probe(struct rsnd_priv *priv); void rsnd_adg_remove(struct rsnd_priv *priv); -int rsnd_adg_set_convert_clk_gen2(struct rsnd_mod *mod, +int rsnd_adg_set_src_timesel_gen2(struct rsnd_mod *src_mod, struct rsnd_dai_stream *io, - unsigned int src_rate, - unsigned int dst_rate); -int rsnd_adg_set_convert_timing_gen2(struct rsnd_mod *mod, - struct rsnd_dai_stream *io); + unsigned int in_rate, + unsigned int out_rate); int rsnd_adg_set_cmd_timsel_gen2(struct rsnd_mod *mod, struct rsnd_dai_stream *io);
diff --git a/sound/soc/sh/rcar/src.c b/sound/soc/sh/rcar/src.c index d1a8741..15d6ffe 100644 --- a/sound/soc/sh/rcar/src.c +++ b/sound/soc/sh/rcar/src.c @@ -189,7 +189,7 @@ static void rsnd_src_set_convert_rate(struct rsnd_dai_stream *io, struct rsnd_priv *priv = rsnd_mod_to_priv(mod); struct device *dev = rsnd_priv_to_dev(priv); struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); - u32 convert_rate = rsnd_src_convert_rate(io, mod); + u32 fin, fout; u32 ifscr, fsrate, adinr; u32 cr, route; u32 bsdsr, bsisr; @@ -198,13 +198,16 @@ static void rsnd_src_set_convert_rate(struct rsnd_dai_stream *io, if (!runtime) return;
+ fin = rsnd_src_get_in_rate(priv, io); + fout = rsnd_src_get_out_rate(priv, io); + /* 6 - 1/6 are very enough ratio for SRC_BSDSR */ - if (!convert_rate) + if (fin == fout) ratio = 0; - else if (convert_rate > runtime->rate) - ratio = 100 * convert_rate / runtime->rate; + else if (fin > fout) + ratio = 100 * fin / fout; else - ratio = 100 * runtime->rate / convert_rate; + ratio = 100 * fout / fin;
if (ratio > 600) { dev_err(dev, "FSO/FSI ratio error\n"); @@ -222,9 +225,9 @@ static void rsnd_src_set_convert_rate(struct rsnd_dai_stream *io, */ ifscr = 0; fsrate = 0; - if (convert_rate) { + if (fin != fout) { ifscr = 1; - fsrate = 0x0400000 / convert_rate * runtime->rate; + fsrate = 0x0400000 / fout * fin; }
/* @@ -232,7 +235,7 @@ static void rsnd_src_set_convert_rate(struct rsnd_dai_stream *io, */ cr = 0x00011110; route = 0x0; - if (convert_rate) { + if (fin != fout) { route = 0x1;
if (rsnd_src_sync_is_enabled(mod)) { @@ -274,12 +277,7 @@ static void rsnd_src_set_convert_rate(struct rsnd_dai_stream *io, rsnd_mod_write(mod, SRC_O_BUSIF_MODE, 1); rsnd_mod_write(mod, SRC_BUSIF_DALIGN, rsnd_get_dalign(mod, io));
- if (convert_rate) - rsnd_adg_set_convert_clk_gen2(mod, io, - runtime->rate, - convert_rate); - else - rsnd_adg_set_convert_timing_gen2(mod, io); + rsnd_adg_set_src_timesel_gen2(mod, io, fin, fout); }
static int rsnd_src_irq(struct rsnd_mod *mod,