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-rw-r--r--kernel/sound/soc/sh/rcar/Makefile5
-rw-r--r--kernel/sound/soc/sh/rcar/adg.c438
-rw-r--r--kernel/sound/soc/sh/rcar/core.c1135
-rw-r--r--kernel/sound/soc/sh/rcar/dma.c617
-rw-r--r--kernel/sound/soc/sh/rcar/dvc.c387
-rw-r--r--kernel/sound/soc/sh/rcar/gen.c393
-rw-r--r--kernel/sound/soc/sh/rcar/rsnd.h548
-rw-r--r--kernel/sound/soc/sh/rcar/rsrc-card.c512
-rw-r--r--kernel/sound/soc/sh/rcar/src.c1061
-rw-r--r--kernel/sound/soc/sh/rcar/ssi.c750
10 files changed, 5846 insertions, 0 deletions
diff --git a/kernel/sound/soc/sh/rcar/Makefile b/kernel/sound/soc/sh/rcar/Makefile
new file mode 100644
index 000000000..f1b445173
--- /dev/null
+++ b/kernel/sound/soc/sh/rcar/Makefile
@@ -0,0 +1,5 @@
+snd-soc-rcar-objs := core.o gen.o dma.o src.o adg.o ssi.o dvc.o
+obj-$(CONFIG_SND_SOC_RCAR) += snd-soc-rcar.o
+
+snd-soc-rsrc-card-objs := rsrc-card.o
+obj-$(CONFIG_SND_SOC_RSRC_CARD) += snd-soc-rsrc-card.o
diff --git a/kernel/sound/soc/sh/rcar/adg.c b/kernel/sound/soc/sh/rcar/adg.c
new file mode 100644
index 000000000..fefc881db
--- /dev/null
+++ b/kernel/sound/soc/sh/rcar/adg.c
@@ -0,0 +1,438 @@
+/*
+ * Helper routines for R-Car sound ADG.
+ *
+ * Copyright (C) 2013 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/sh_clk.h>
+#include "rsnd.h"
+
+#define CLKA 0
+#define CLKB 1
+#define CLKC 2
+#define CLKI 3
+#define CLKMAX 4
+
+struct rsnd_adg {
+ struct clk *clk[CLKMAX];
+
+ int rbga_rate_for_441khz_div_6; /* RBGA */
+ int rbgb_rate_for_48khz_div_6; /* RBGB */
+ u32 ckr;
+};
+
+#define for_each_rsnd_clk(pos, adg, i) \
+ for (i = 0; \
+ (i < CLKMAX) && \
+ ((pos) = adg->clk[i]); \
+ i++)
+#define rsnd_priv_to_adg(priv) ((struct rsnd_adg *)(priv)->adg)
+
+
+static u32 rsnd_adg_ssi_ws_timing_gen2(struct rsnd_dai_stream *io)
+{
+ struct rsnd_mod *mod = rsnd_io_to_mod_ssi(io);
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ int id = rsnd_mod_id(mod);
+ int ws = id;
+
+ if (rsnd_ssi_is_pin_sharing(rsnd_ssi_mod_get(priv, id))) {
+ switch (id) {
+ case 1:
+ case 2:
+ ws = 0;
+ break;
+ case 4:
+ ws = 3;
+ break;
+ case 8:
+ ws = 7;
+ break;
+ }
+ }
+
+ return (0x6 + ws) << 8;
+}
+
+int rsnd_adg_set_cmd_timsel_gen2(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io)
+{
+ int id = rsnd_mod_id(mod);
+ int shift = (id % 2) ? 16 : 0;
+ u32 mask, val;
+
+ val = rsnd_adg_ssi_ws_timing_gen2(io);
+
+ val = val << shift;
+ mask = 0xffff << shift;
+
+ rsnd_mod_bset(mod, CMDOUT_TIMSEL, mask, val);
+
+ return 0;
+}
+
+static int rsnd_adg_set_src_timsel_gen2(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ u32 timsel)
+{
+ int is_play = rsnd_io_is_play(io);
+ int id = rsnd_mod_id(mod);
+ int shift = (id % 2) ? 16 : 0;
+ u32 mask, ws;
+ u32 in, out;
+
+ ws = rsnd_adg_ssi_ws_timing_gen2(io);
+
+ in = (is_play) ? timsel : ws;
+ out = (is_play) ? ws : timsel;
+
+ in = in << shift;
+ out = out << shift;
+ mask = 0xffff << shift;
+
+ switch (id / 2) {
+ case 0:
+ rsnd_mod_bset(mod, SRCIN_TIMSEL0, mask, in);
+ rsnd_mod_bset(mod, SRCOUT_TIMSEL0, mask, out);
+ break;
+ case 1:
+ rsnd_mod_bset(mod, SRCIN_TIMSEL1, mask, in);
+ rsnd_mod_bset(mod, SRCOUT_TIMSEL1, mask, out);
+ break;
+ case 2:
+ rsnd_mod_bset(mod, SRCIN_TIMSEL2, mask, in);
+ rsnd_mod_bset(mod, SRCOUT_TIMSEL2, mask, out);
+ break;
+ case 3:
+ rsnd_mod_bset(mod, SRCIN_TIMSEL3, mask, in);
+ rsnd_mod_bset(mod, SRCOUT_TIMSEL3, mask, out);
+ break;
+ case 4:
+ rsnd_mod_bset(mod, SRCIN_TIMSEL4, mask, in);
+ rsnd_mod_bset(mod, SRCOUT_TIMSEL4, mask, out);
+ break;
+ }
+
+ return 0;
+}
+
+int rsnd_adg_set_convert_clk_gen2(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ unsigned int src_rate,
+ unsigned int dst_rate)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_adg *adg = rsnd_priv_to_adg(priv);
+ 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_div_6,/* 0011: RBGA */
+ adg->rbgb_rate_for_48khz_div_6, /* 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(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(mod, io, val);
+ if (ret < 0) {
+ dev_err(dev, "timsel error\n");
+ return ret;
+ }
+
+ rsnd_mod_bset(mod, DIV_EN, en, en);
+
+ dev_dbg(dev, "convert rate %d <-> %d\n", src_rate, dst_rate);
+
+ return 0;
+}
+
+int rsnd_adg_set_convert_timing_gen2(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io)
+{
+ u32 val = rsnd_adg_ssi_ws_timing_gen2(io);
+
+ return rsnd_adg_set_src_timsel_gen2(mod, io, val);
+}
+
+int rsnd_adg_set_convert_clk_gen1(struct rsnd_priv *priv,
+ struct rsnd_mod *mod,
+ unsigned int src_rate,
+ unsigned int dst_rate)
+{
+ struct rsnd_adg *adg = rsnd_priv_to_adg(priv);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ int idx, sel, div, shift;
+ u32 mask, val;
+ int id = rsnd_mod_id(mod);
+ unsigned int sel_rate [] = {
+ clk_get_rate(adg->clk[CLKA]), /* 000: CLKA */
+ clk_get_rate(adg->clk[CLKB]), /* 001: CLKB */
+ clk_get_rate(adg->clk[CLKC]), /* 010: CLKC */
+ 0, /* 011: MLBCLK (not used) */
+ adg->rbga_rate_for_441khz_div_6,/* 100: RBGA */
+ adg->rbgb_rate_for_48khz_div_6, /* 101: RBGB */
+ };
+
+ /* find div (= 1/128, 1/256, 1/512, 1/1024, 1/2048 */
+ for (sel = 0; sel < ARRAY_SIZE(sel_rate); sel++) {
+ for (div = 128, idx = 0;
+ div <= 2048;
+ div *= 2, idx++) {
+ if (src_rate == sel_rate[sel] / div) {
+ val = (idx << 4) | sel;
+ goto find_rate;
+ }
+ }
+ }
+ dev_err(dev, "can't find convert src clk\n");
+ return -EINVAL;
+
+find_rate:
+ shift = (id % 4) * 8;
+ mask = 0xFF << shift;
+ val = val << shift;
+
+ dev_dbg(dev, "adg convert src clk = %02x\n", val);
+
+ switch (id / 4) {
+ case 0:
+ rsnd_mod_bset(mod, AUDIO_CLK_SEL3, mask, val);
+ break;
+ case 1:
+ rsnd_mod_bset(mod, AUDIO_CLK_SEL4, mask, val);
+ break;
+ case 2:
+ rsnd_mod_bset(mod, AUDIO_CLK_SEL5, mask, val);
+ break;
+ }
+
+ /*
+ * Gen1 doesn't need dst_rate settings,
+ * since it uses SSI WS pin.
+ * see also rsnd_src_set_route_if_gen1()
+ */
+
+ return 0;
+}
+
+static void rsnd_adg_set_ssi_clk(struct rsnd_mod *mod, u32 val)
+{
+ int id = rsnd_mod_id(mod);
+ int shift = (id % 4) * 8;
+ u32 mask = 0xFF << shift;
+
+ val = val << shift;
+
+ /*
+ * SSI 8 is not connected to ADG.
+ * it works with SSI 7
+ */
+ if (id == 8)
+ return;
+
+ switch (id / 4) {
+ case 0:
+ rsnd_mod_bset(mod, AUDIO_CLK_SEL0, mask, val);
+ break;
+ case 1:
+ rsnd_mod_bset(mod, AUDIO_CLK_SEL1, mask, val);
+ break;
+ case 2:
+ rsnd_mod_bset(mod, AUDIO_CLK_SEL2, mask, val);
+ break;
+ }
+}
+
+int rsnd_adg_ssi_clk_stop(struct rsnd_mod *mod)
+{
+ /*
+ * "mod" = "ssi" here.
+ * we can get "ssi id" from mod
+ */
+ rsnd_adg_set_ssi_clk(mod, 0);
+
+ return 0;
+}
+
+int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *mod, unsigned int rate)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_adg *adg = rsnd_priv_to_adg(priv);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct clk *clk;
+ int i;
+ u32 data;
+ int sel_table[] = {
+ [CLKA] = 0x1,
+ [CLKB] = 0x2,
+ [CLKC] = 0x3,
+ [CLKI] = 0x0,
+ };
+
+ dev_dbg(dev, "request clock = %d\n", rate);
+
+ /*
+ * find suitable clock from
+ * AUDIO_CLKA/AUDIO_CLKB/AUDIO_CLKC/AUDIO_CLKI.
+ */
+ data = 0;
+ for_each_rsnd_clk(clk, adg, i) {
+ if (rate == clk_get_rate(clk)) {
+ data = sel_table[i];
+ goto found_clock;
+ }
+ }
+
+ /*
+ * find 1/6 clock from BRGA/BRGB
+ */
+ if (rate == adg->rbga_rate_for_441khz_div_6) {
+ data = 0x10;
+ goto found_clock;
+ }
+
+ if (rate == adg->rbgb_rate_for_48khz_div_6) {
+ data = 0x20;
+ goto found_clock;
+ }
+
+ return -EIO;
+
+found_clock:
+
+ /* see rsnd_adg_ssi_clk_init() */
+ rsnd_mod_bset(mod, SSICKR, 0x00FF0000, adg->ckr);
+ rsnd_mod_write(mod, BRRA, 0x00000002); /* 1/6 */
+ rsnd_mod_write(mod, BRRB, 0x00000002); /* 1/6 */
+
+ /*
+ * This "mod" = "ssi" here.
+ * we can get "ssi id" from mod
+ */
+ rsnd_adg_set_ssi_clk(mod, data);
+
+ dev_dbg(dev, "ADG: ssi%d selects clk%d = %d",
+ rsnd_mod_id(mod), i, rate);
+
+ return 0;
+}
+
+static void rsnd_adg_ssi_clk_init(struct rsnd_priv *priv, struct rsnd_adg *adg)
+{
+ struct clk *clk;
+ unsigned long rate;
+ u32 ckr;
+ int i;
+ int brg_table[] = {
+ [CLKA] = 0x0,
+ [CLKB] = 0x1,
+ [CLKC] = 0x4,
+ [CLKI] = 0x2,
+ };
+
+ /*
+ * This driver is assuming that AUDIO_CLKA/AUDIO_CLKB/AUDIO_CLKC
+ * have 44.1kHz or 48kHz base clocks for now.
+ *
+ * SSI itself can divide parent clock by 1/1 - 1/16
+ * So, BRGA outputs 44.1kHz base parent clock 1/32,
+ * and, BRGB outputs 48.0kHz base parent clock 1/32 here.
+ * see
+ * rsnd_adg_ssi_clk_try_start()
+ */
+ ckr = 0;
+ adg->rbga_rate_for_441khz_div_6 = 0;
+ adg->rbgb_rate_for_48khz_div_6 = 0;
+ for_each_rsnd_clk(clk, adg, i) {
+ rate = clk_get_rate(clk);
+
+ if (0 == rate) /* not used */
+ continue;
+
+ /* RBGA */
+ if (!adg->rbga_rate_for_441khz_div_6 && (0 == rate % 44100)) {
+ adg->rbga_rate_for_441khz_div_6 = rate / 6;
+ ckr |= brg_table[i] << 20;
+ }
+
+ /* RBGB */
+ if (!adg->rbgb_rate_for_48khz_div_6 && (0 == rate % 48000)) {
+ adg->rbgb_rate_for_48khz_div_6 = rate / 6;
+ ckr |= brg_table[i] << 16;
+ }
+ }
+
+ adg->ckr = ckr;
+}
+
+int rsnd_adg_probe(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_adg *adg;
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct clk *clk;
+ int i;
+
+ adg = devm_kzalloc(dev, sizeof(*adg), GFP_KERNEL);
+ if (!adg) {
+ dev_err(dev, "ADG allocate failed\n");
+ return -ENOMEM;
+ }
+
+ adg->clk[CLKA] = devm_clk_get(dev, "clk_a");
+ adg->clk[CLKB] = devm_clk_get(dev, "clk_b");
+ adg->clk[CLKC] = devm_clk_get(dev, "clk_c");
+ adg->clk[CLKI] = devm_clk_get(dev, "clk_i");
+
+ for_each_rsnd_clk(clk, adg, i)
+ dev_dbg(dev, "clk %d : %p : %ld\n", i, clk, clk_get_rate(clk));
+
+ rsnd_adg_ssi_clk_init(priv, adg);
+
+ priv->adg = adg;
+
+ return 0;
+}
diff --git a/kernel/sound/soc/sh/rcar/core.c b/kernel/sound/soc/sh/rcar/core.c
new file mode 100644
index 000000000..9f48d75fa
--- /dev/null
+++ b/kernel/sound/soc/sh/rcar/core.c
@@ -0,0 +1,1135 @@
+/*
+ * Renesas R-Car SRU/SCU/SSIU/SSI support
+ *
+ * Copyright (C) 2013 Renesas Solutions Corp.
+ * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ *
+ * Based on fsi.c
+ * Kuninori Morimoto <morimoto.kuninori@renesas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * Renesas R-Car sound device structure
+ *
+ * Gen1
+ *
+ * SRU : Sound Routing Unit
+ * - SRC : Sampling Rate Converter
+ * - CMD
+ * - CTU : Channel Count Conversion Unit
+ * - MIX : Mixer
+ * - DVC : Digital Volume and Mute Function
+ * - SSI : Serial Sound Interface
+ *
+ * Gen2
+ *
+ * SCU : Sampling Rate Converter Unit
+ * - SRC : Sampling Rate Converter
+ * - CMD
+ * - CTU : Channel Count Conversion Unit
+ * - MIX : Mixer
+ * - DVC : Digital Volume and Mute Function
+ * SSIU : Serial Sound Interface Unit
+ * - SSI : Serial Sound Interface
+ */
+
+/*
+ * driver data Image
+ *
+ * rsnd_priv
+ * |
+ * | ** this depends on Gen1/Gen2
+ * |
+ * +- gen
+ * |
+ * | ** these depend on data path
+ * | ** gen and platform data control it
+ * |
+ * +- rdai[0]
+ * | | sru ssiu ssi
+ * | +- playback -> [mod] -> [mod] -> [mod] -> ...
+ * | |
+ * | | sru ssiu ssi
+ * | +- capture -> [mod] -> [mod] -> [mod] -> ...
+ * |
+ * +- rdai[1]
+ * | | sru ssiu ssi
+ * | +- playback -> [mod] -> [mod] -> [mod] -> ...
+ * | |
+ * | | sru ssiu ssi
+ * | +- capture -> [mod] -> [mod] -> [mod] -> ...
+ * ...
+ * |
+ * | ** these control ssi
+ * |
+ * +- ssi
+ * | |
+ * | +- ssi[0]
+ * | +- ssi[1]
+ * | +- ssi[2]
+ * | ...
+ * |
+ * | ** these control src
+ * |
+ * +- src
+ * |
+ * +- src[0]
+ * +- src[1]
+ * +- src[2]
+ * ...
+ *
+ *
+ * for_each_rsnd_dai(xx, priv, xx)
+ * rdai[0] => rdai[1] => rdai[2] => ...
+ *
+ * for_each_rsnd_mod(xx, rdai, xx)
+ * [mod] => [mod] => [mod] => ...
+ *
+ * rsnd_dai_call(xxx, fn )
+ * [mod]->fn() -> [mod]->fn() -> [mod]->fn()...
+ *
+ */
+#include <linux/pm_runtime.h>
+#include "rsnd.h"
+
+#define RSND_RATES SNDRV_PCM_RATE_8000_96000
+#define RSND_FMTS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE)
+
+static const struct rsnd_of_data rsnd_of_data_gen1 = {
+ .flags = RSND_GEN1,
+};
+
+static const struct rsnd_of_data rsnd_of_data_gen2 = {
+ .flags = RSND_GEN2,
+};
+
+static const struct of_device_id rsnd_of_match[] = {
+ { .compatible = "renesas,rcar_sound-gen1", .data = &rsnd_of_data_gen1 },
+ { .compatible = "renesas,rcar_sound-gen2", .data = &rsnd_of_data_gen2 },
+ {},
+};
+MODULE_DEVICE_TABLE(of, rsnd_of_match);
+
+/*
+ * rsnd_platform functions
+ */
+#define rsnd_platform_call(priv, dai, func, param...) \
+ (!(priv->info->func) ? 0 : \
+ priv->info->func(param))
+
+#define rsnd_is_enable_path(io, name) \
+ ((io)->info ? (io)->info->name : NULL)
+#define rsnd_info_id(priv, io, name) \
+ ((io)->info->name - priv->info->name##_info)
+
+/*
+ * rsnd_mod functions
+ */
+char *rsnd_mod_name(struct rsnd_mod *mod)
+{
+ if (!mod || !mod->ops)
+ return "unknown";
+
+ return mod->ops->name;
+}
+
+struct dma_chan *rsnd_mod_dma_req(struct rsnd_mod *mod)
+{
+ if (!mod || !mod->ops || !mod->ops->dma_req)
+ return NULL;
+
+ return mod->ops->dma_req(mod);
+}
+
+int rsnd_mod_init(struct rsnd_mod *mod,
+ struct rsnd_mod_ops *ops,
+ struct clk *clk,
+ enum rsnd_mod_type type,
+ int id)
+{
+ int ret = clk_prepare(clk);
+
+ if (ret)
+ return ret;
+
+ mod->id = id;
+ mod->ops = ops;
+ mod->type = type;
+ mod->clk = clk;
+
+ return ret;
+}
+
+void rsnd_mod_quit(struct rsnd_mod *mod)
+{
+ if (mod->clk)
+ clk_unprepare(mod->clk);
+}
+
+/*
+ * settting function
+ */
+u32 rsnd_get_adinr(struct rsnd_mod *mod)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ u32 adinr = runtime->channels;
+
+ switch (runtime->sample_bits) {
+ case 16:
+ adinr |= (8 << 16);
+ break;
+ case 32:
+ adinr |= (0 << 16);
+ break;
+ default:
+ dev_warn(dev, "not supported sample bits\n");
+ return 0;
+ }
+
+ return adinr;
+}
+
+/*
+ * rsnd_dai functions
+ */
+#define __rsnd_mod_call(mod, func, param...) \
+({ \
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod); \
+ struct device *dev = rsnd_priv_to_dev(priv); \
+ u32 mask = (1 << __rsnd_mod_shift_##func) & ~(1 << 31); \
+ u32 call = __rsnd_mod_call_##func << __rsnd_mod_shift_##func; \
+ int ret = 0; \
+ if ((mod->status & mask) == call) { \
+ dev_dbg(dev, "%s[%d] %s\n", \
+ rsnd_mod_name(mod), rsnd_mod_id(mod), #func); \
+ ret = (mod)->ops->func(mod, param); \
+ mod->status = (mod->status & ~mask) | (~call & mask); \
+ } \
+ ret; \
+})
+
+#define rsnd_mod_call(mod, func, param...) \
+ (!(mod) ? -ENODEV : \
+ !((mod)->ops->func) ? 0 : \
+ __rsnd_mod_call(mod, func, param))
+
+#define rsnd_dai_call(fn, io, param...) \
+({ \
+ struct rsnd_mod *mod; \
+ int ret = 0, i; \
+ for (i = 0; i < RSND_MOD_MAX; i++) { \
+ mod = (io)->mod[i]; \
+ if (!mod) \
+ continue; \
+ ret = rsnd_mod_call(mod, fn, param); \
+ if (ret < 0) \
+ break; \
+ } \
+ ret; \
+})
+
+static int rsnd_dai_connect(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io)
+{
+ if (!mod)
+ return -EIO;
+
+ if (io->mod[mod->type]) {
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ dev_err(dev, "%s[%d] is not empty\n",
+ rsnd_mod_name(mod),
+ rsnd_mod_id(mod));
+ return -EIO;
+ }
+
+ io->mod[mod->type] = mod;
+ mod->io = io;
+
+ return 0;
+}
+
+static void rsnd_dai_disconnect(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io)
+{
+ mod->io = NULL;
+ io->mod[mod->type] = NULL;
+}
+
+struct rsnd_dai *rsnd_rdai_get(struct rsnd_priv *priv, int id)
+{
+ if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
+ return NULL;
+
+ return priv->rdai + id;
+}
+
+static struct rsnd_dai *rsnd_dai_to_rdai(struct snd_soc_dai *dai)
+{
+ struct rsnd_priv *priv = snd_soc_dai_get_drvdata(dai);
+
+ return rsnd_rdai_get(priv, dai->id);
+}
+
+/*
+ * rsnd_soc_dai functions
+ */
+int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional)
+{
+ struct snd_pcm_substream *substream = io->substream;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ int pos = io->byte_pos + additional;
+
+ pos %= (runtime->periods * io->byte_per_period);
+
+ return pos;
+}
+
+void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int byte)
+{
+ io->byte_pos += byte;
+
+ if (io->byte_pos >= io->next_period_byte) {
+ struct snd_pcm_substream *substream = io->substream;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ io->period_pos++;
+ io->next_period_byte += io->byte_per_period;
+
+ if (io->period_pos >= runtime->periods) {
+ io->byte_pos = 0;
+ io->period_pos = 0;
+ io->next_period_byte = io->byte_per_period;
+ }
+
+ snd_pcm_period_elapsed(substream);
+ }
+}
+
+static int rsnd_dai_stream_init(struct rsnd_dai_stream *io,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ io->substream = substream;
+ io->byte_pos = 0;
+ io->period_pos = 0;
+ io->byte_per_period = runtime->period_size *
+ runtime->channels *
+ samples_to_bytes(runtime, 1);
+ io->next_period_byte = io->byte_per_period;
+
+ return 0;
+}
+
+static
+struct snd_soc_dai *rsnd_substream_to_dai(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+
+ return rtd->cpu_dai;
+}
+
+static
+struct rsnd_dai_stream *rsnd_rdai_to_io(struct rsnd_dai *rdai,
+ struct snd_pcm_substream *substream)
+{
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ return &rdai->playback;
+ else
+ return &rdai->capture;
+}
+
+static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd,
+ struct snd_soc_dai *dai)
+{
+ struct rsnd_priv *priv = snd_soc_dai_get_drvdata(dai);
+ struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
+ struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
+ int ssi_id = rsnd_mod_id(rsnd_io_to_mod_ssi(io));
+ int ret;
+ unsigned long flags;
+
+ rsnd_lock(priv, flags);
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ ret = rsnd_dai_stream_init(io, substream);
+ if (ret < 0)
+ goto dai_trigger_end;
+
+ ret = rsnd_platform_call(priv, dai, start, ssi_id);
+ if (ret < 0)
+ goto dai_trigger_end;
+
+ ret = rsnd_dai_call(init, io, priv);
+ if (ret < 0)
+ goto dai_trigger_end;
+
+ ret = rsnd_dai_call(start, io, priv);
+ if (ret < 0)
+ goto dai_trigger_end;
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ ret = rsnd_dai_call(stop, io, priv);
+ if (ret < 0)
+ goto dai_trigger_end;
+
+ ret = rsnd_dai_call(quit, io, priv);
+ if (ret < 0)
+ goto dai_trigger_end;
+
+ ret = rsnd_platform_call(priv, dai, stop, ssi_id);
+ if (ret < 0)
+ goto dai_trigger_end;
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+dai_trigger_end:
+ rsnd_unlock(priv, flags);
+
+ return ret;
+}
+
+static int rsnd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+ struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
+
+ /* set master/slave audio interface */
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ rdai->clk_master = 0;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFS:
+ rdai->clk_master = 1; /* codec is slave, cpu is master */
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* set format */
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ rdai->sys_delay = 0;
+ rdai->data_alignment = 0;
+ rdai->frm_clk_inv = 0;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ rdai->sys_delay = 1;
+ rdai->data_alignment = 0;
+ rdai->frm_clk_inv = 1;
+ break;
+ case SND_SOC_DAIFMT_RIGHT_J:
+ rdai->sys_delay = 1;
+ rdai->data_alignment = 1;
+ rdai->frm_clk_inv = 1;
+ break;
+ }
+
+ /* set clock inversion */
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_IF:
+ rdai->bit_clk_inv = rdai->bit_clk_inv;
+ rdai->frm_clk_inv = !rdai->frm_clk_inv;
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ rdai->bit_clk_inv = !rdai->bit_clk_inv;
+ rdai->frm_clk_inv = rdai->frm_clk_inv;
+ break;
+ case SND_SOC_DAIFMT_IB_IF:
+ rdai->bit_clk_inv = !rdai->bit_clk_inv;
+ rdai->frm_clk_inv = !rdai->frm_clk_inv;
+ break;
+ case SND_SOC_DAIFMT_NB_NF:
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static const struct snd_soc_dai_ops rsnd_soc_dai_ops = {
+ .trigger = rsnd_soc_dai_trigger,
+ .set_fmt = rsnd_soc_dai_set_fmt,
+};
+
+#define rsnd_path_parse(priv, io, type) \
+({ \
+ struct rsnd_mod *mod; \
+ int ret = 0; \
+ int id = -1; \
+ \
+ if (rsnd_is_enable_path(io, type)) { \
+ id = rsnd_info_id(priv, io, type); \
+ if (id >= 0) { \
+ mod = rsnd_##type##_mod_get(priv, id); \
+ ret = rsnd_dai_connect(mod, io); \
+ } \
+ } \
+ ret; \
+})
+
+#define rsnd_path_break(priv, io, type) \
+{ \
+ struct rsnd_mod *mod; \
+ int id = -1; \
+ \
+ if (rsnd_is_enable_path(io, type)) { \
+ id = rsnd_info_id(priv, io, type); \
+ if (id >= 0) { \
+ mod = rsnd_##type##_mod_get(priv, id); \
+ rsnd_dai_disconnect(mod, io); \
+ } \
+ } \
+}
+
+static int rsnd_path_init(struct rsnd_priv *priv,
+ struct rsnd_dai *rdai,
+ struct rsnd_dai_stream *io)
+{
+ int ret;
+
+ /*
+ * Gen1 is created by SRU/SSI, and this SRU is base module of
+ * Gen2's SCU/SSIU/SSI. (Gen2 SCU/SSIU came from SRU)
+ *
+ * Easy image is..
+ * Gen1 SRU = Gen2 SCU + SSIU + etc
+ *
+ * Gen2 SCU path is very flexible, but, Gen1 SRU (SCU parts) is
+ * using fixed path.
+ */
+
+ /* SRC */
+ ret = rsnd_path_parse(priv, io, src);
+ if (ret < 0)
+ return ret;
+
+ /* SSI */
+ ret = rsnd_path_parse(priv, io, ssi);
+ if (ret < 0)
+ return ret;
+
+ /* DVC */
+ ret = rsnd_path_parse(priv, io, dvc);
+ if (ret < 0)
+ return ret;
+
+ return ret;
+}
+
+static void rsnd_of_parse_dai(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv)
+{
+ struct device_node *dai_node, *dai_np;
+ struct device_node *ssi_node, *ssi_np;
+ struct device_node *src_node, *src_np;
+ struct device_node *dvc_node, *dvc_np;
+ struct device_node *playback, *capture;
+ struct rsnd_dai_platform_info *dai_info;
+ struct rcar_snd_info *info = rsnd_priv_to_info(priv);
+ struct device *dev = &pdev->dev;
+ int nr, i;
+ int dai_i, ssi_i, src_i, dvc_i;
+
+ if (!of_data)
+ return;
+
+ dai_node = of_get_child_by_name(dev->of_node, "rcar_sound,dai");
+ if (!dai_node)
+ return;
+
+ nr = of_get_child_count(dai_node);
+ if (!nr)
+ return;
+
+ dai_info = devm_kzalloc(dev,
+ sizeof(struct rsnd_dai_platform_info) * nr,
+ GFP_KERNEL);
+ if (!dai_info) {
+ dev_err(dev, "dai info allocation error\n");
+ return;
+ }
+
+ info->dai_info_nr = nr;
+ info->dai_info = dai_info;
+
+ ssi_node = of_get_child_by_name(dev->of_node, "rcar_sound,ssi");
+ src_node = of_get_child_by_name(dev->of_node, "rcar_sound,src");
+ dvc_node = of_get_child_by_name(dev->of_node, "rcar_sound,dvc");
+
+#define mod_parse(name) \
+if (name##_node) { \
+ struct rsnd_##name##_platform_info *name##_info; \
+ \
+ name##_i = 0; \
+ for_each_child_of_node(name##_node, name##_np) { \
+ name##_info = info->name##_info + name##_i; \
+ \
+ if (name##_np == playback) \
+ dai_info->playback.name = name##_info; \
+ if (name##_np == capture) \
+ dai_info->capture.name = name##_info; \
+ \
+ name##_i++; \
+ } \
+}
+
+ /*
+ * parse all dai
+ */
+ dai_i = 0;
+ for_each_child_of_node(dai_node, dai_np) {
+ dai_info = info->dai_info + dai_i;
+
+ for (i = 0;; i++) {
+
+ playback = of_parse_phandle(dai_np, "playback", i);
+ capture = of_parse_phandle(dai_np, "capture", i);
+
+ if (!playback && !capture)
+ break;
+
+ mod_parse(ssi);
+ mod_parse(src);
+ mod_parse(dvc);
+
+ of_node_put(playback);
+ of_node_put(capture);
+ }
+
+ dai_i++;
+ }
+}
+
+static int rsnd_dai_probe(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv)
+{
+ struct snd_soc_dai_driver *drv;
+ struct rcar_snd_info *info = rsnd_priv_to_info(priv);
+ struct rsnd_dai *rdai;
+ struct rsnd_ssi_platform_info *pmod, *cmod;
+ struct device *dev = rsnd_priv_to_dev(priv);
+ int dai_nr;
+ int i;
+
+ rsnd_of_parse_dai(pdev, of_data, priv);
+
+ dai_nr = info->dai_info_nr;
+ if (!dai_nr) {
+ dev_err(dev, "no dai\n");
+ return -EIO;
+ }
+
+ drv = devm_kzalloc(dev, sizeof(*drv) * dai_nr, GFP_KERNEL);
+ rdai = devm_kzalloc(dev, sizeof(*rdai) * dai_nr, GFP_KERNEL);
+ if (!drv || !rdai) {
+ dev_err(dev, "dai allocate failed\n");
+ return -ENOMEM;
+ }
+
+ priv->rdai_nr = dai_nr;
+ priv->daidrv = drv;
+ priv->rdai = rdai;
+
+ for (i = 0; i < dai_nr; i++) {
+
+ pmod = info->dai_info[i].playback.ssi;
+ cmod = info->dai_info[i].capture.ssi;
+
+ /*
+ * init rsnd_dai
+ */
+ snprintf(rdai[i].name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", i);
+ rdai[i].priv = priv;
+
+ /*
+ * init snd_soc_dai_driver
+ */
+ drv[i].name = rdai[i].name;
+ drv[i].ops = &rsnd_soc_dai_ops;
+ if (pmod) {
+ snprintf(rdai[i].playback.name, RSND_DAI_NAME_SIZE,
+ "DAI%d Playback", i);
+
+ drv[i].playback.rates = RSND_RATES;
+ drv[i].playback.formats = RSND_FMTS;
+ drv[i].playback.channels_min = 2;
+ drv[i].playback.channels_max = 2;
+ drv[i].playback.stream_name = rdai[i].playback.name;
+
+ rdai[i].playback.info = &info->dai_info[i].playback;
+ rdai[i].playback.rdai = rdai + i;
+ rsnd_path_init(priv, &rdai[i], &rdai[i].playback);
+ }
+ if (cmod) {
+ snprintf(rdai[i].capture.name, RSND_DAI_NAME_SIZE,
+ "DAI%d Capture", i);
+
+ drv[i].capture.rates = RSND_RATES;
+ drv[i].capture.formats = RSND_FMTS;
+ drv[i].capture.channels_min = 2;
+ drv[i].capture.channels_max = 2;
+ drv[i].capture.stream_name = rdai[i].capture.name;
+
+ rdai[i].capture.info = &info->dai_info[i].capture;
+ rdai[i].capture.rdai = rdai + i;
+ rsnd_path_init(priv, &rdai[i], &rdai[i].capture);
+ }
+
+ dev_dbg(dev, "%s (%s/%s)\n", rdai[i].name,
+ pmod ? "play" : " -- ",
+ cmod ? "capture" : " -- ");
+ }
+
+ return 0;
+}
+
+/*
+ * pcm ops
+ */
+static struct snd_pcm_hardware rsnd_pcm_hardware = {
+ .info = SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID,
+ .buffer_bytes_max = 64 * 1024,
+ .period_bytes_min = 32,
+ .period_bytes_max = 8192,
+ .periods_min = 1,
+ .periods_max = 32,
+ .fifo_size = 256,
+};
+
+static int rsnd_pcm_open(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ int ret = 0;
+
+ snd_soc_set_runtime_hwparams(substream, &rsnd_pcm_hardware);
+
+ ret = snd_pcm_hw_constraint_integer(runtime,
+ SNDRV_PCM_HW_PARAM_PERIODS);
+
+ return ret;
+}
+
+static int rsnd_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
+{
+ struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
+ struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
+ struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
+ int ret;
+
+ ret = rsnd_dai_call(hw_params, io, substream, hw_params);
+ if (ret)
+ return ret;
+
+ return snd_pcm_lib_malloc_pages(substream,
+ params_buffer_bytes(hw_params));
+}
+
+static snd_pcm_uframes_t rsnd_pointer(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
+ struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
+ struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
+
+ return bytes_to_frames(runtime, io->byte_pos);
+}
+
+static struct snd_pcm_ops rsnd_pcm_ops = {
+ .open = rsnd_pcm_open,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = rsnd_hw_params,
+ .hw_free = snd_pcm_lib_free_pages,
+ .pointer = rsnd_pointer,
+};
+
+/*
+ * snd_kcontrol
+ */
+#define kcontrol_to_cfg(kctrl) ((struct rsnd_kctrl_cfg *)kctrl->private_value)
+static int rsnd_kctrl_info(struct snd_kcontrol *kctrl,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct rsnd_kctrl_cfg *cfg = kcontrol_to_cfg(kctrl);
+
+ if (cfg->texts) {
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+ uinfo->count = cfg->size;
+ uinfo->value.enumerated.items = cfg->max;
+ if (uinfo->value.enumerated.item >= cfg->max)
+ uinfo->value.enumerated.item = cfg->max - 1;
+ strlcpy(uinfo->value.enumerated.name,
+ cfg->texts[uinfo->value.enumerated.item],
+ sizeof(uinfo->value.enumerated.name));
+ } else {
+ uinfo->count = cfg->size;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = cfg->max;
+ uinfo->type = (cfg->max == 1) ?
+ SNDRV_CTL_ELEM_TYPE_BOOLEAN :
+ SNDRV_CTL_ELEM_TYPE_INTEGER;
+ }
+
+ return 0;
+}
+
+static int rsnd_kctrl_get(struct snd_kcontrol *kctrl,
+ struct snd_ctl_elem_value *uc)
+{
+ struct rsnd_kctrl_cfg *cfg = kcontrol_to_cfg(kctrl);
+ int i;
+
+ for (i = 0; i < cfg->size; i++)
+ if (cfg->texts)
+ uc->value.enumerated.item[i] = cfg->val[i];
+ else
+ uc->value.integer.value[i] = cfg->val[i];
+
+ return 0;
+}
+
+static int rsnd_kctrl_put(struct snd_kcontrol *kctrl,
+ struct snd_ctl_elem_value *uc)
+{
+ struct rsnd_mod *mod = snd_kcontrol_chip(kctrl);
+ struct rsnd_kctrl_cfg *cfg = kcontrol_to_cfg(kctrl);
+ int i, change = 0;
+
+ for (i = 0; i < cfg->size; i++) {
+ if (cfg->texts) {
+ change |= (uc->value.enumerated.item[i] != cfg->val[i]);
+ cfg->val[i] = uc->value.enumerated.item[i];
+ } else {
+ change |= (uc->value.integer.value[i] != cfg->val[i]);
+ cfg->val[i] = uc->value.integer.value[i];
+ }
+ }
+
+ if (change)
+ cfg->update(mod);
+
+ return change;
+}
+
+static int __rsnd_kctrl_new(struct rsnd_mod *mod,
+ struct snd_soc_pcm_runtime *rtd,
+ const unsigned char *name,
+ struct rsnd_kctrl_cfg *cfg,
+ void (*update)(struct rsnd_mod *mod))
+{
+ struct snd_card *card = rtd->card->snd_card;
+ struct snd_kcontrol *kctrl;
+ struct snd_kcontrol_new knew = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = name,
+ .info = rsnd_kctrl_info,
+ .get = rsnd_kctrl_get,
+ .put = rsnd_kctrl_put,
+ .private_value = (unsigned long)cfg,
+ };
+ int ret;
+
+ kctrl = snd_ctl_new1(&knew, mod);
+ if (!kctrl)
+ return -ENOMEM;
+
+ ret = snd_ctl_add(card, kctrl);
+ if (ret < 0) {
+ snd_ctl_free_one(kctrl);
+ return ret;
+ }
+
+ cfg->update = update;
+ cfg->card = card;
+ cfg->kctrl = kctrl;
+
+ return 0;
+}
+
+void _rsnd_kctrl_remove(struct rsnd_kctrl_cfg *cfg)
+{
+ snd_ctl_remove(cfg->card, cfg->kctrl);
+}
+
+int rsnd_kctrl_new_m(struct rsnd_mod *mod,
+ struct snd_soc_pcm_runtime *rtd,
+ const unsigned char *name,
+ void (*update)(struct rsnd_mod *mod),
+ struct rsnd_kctrl_cfg_m *_cfg,
+ u32 max)
+{
+ _cfg->cfg.max = max;
+ _cfg->cfg.size = RSND_DVC_CHANNELS;
+ _cfg->cfg.val = _cfg->val;
+ return __rsnd_kctrl_new(mod, rtd, name, &_cfg->cfg, update);
+}
+
+int rsnd_kctrl_new_s(struct rsnd_mod *mod,
+ struct snd_soc_pcm_runtime *rtd,
+ const unsigned char *name,
+ void (*update)(struct rsnd_mod *mod),
+ struct rsnd_kctrl_cfg_s *_cfg,
+ u32 max)
+{
+ _cfg->cfg.max = max;
+ _cfg->cfg.size = 1;
+ _cfg->cfg.val = &_cfg->val;
+ return __rsnd_kctrl_new(mod, rtd, name, &_cfg->cfg, update);
+}
+
+int rsnd_kctrl_new_e(struct rsnd_mod *mod,
+ struct snd_soc_pcm_runtime *rtd,
+ const unsigned char *name,
+ struct rsnd_kctrl_cfg_s *_cfg,
+ void (*update)(struct rsnd_mod *mod),
+ const char * const *texts,
+ u32 max)
+{
+ _cfg->cfg.max = max;
+ _cfg->cfg.size = 1;
+ _cfg->cfg.val = &_cfg->val;
+ _cfg->cfg.texts = texts;
+ return __rsnd_kctrl_new(mod, rtd, name, &_cfg->cfg, update);
+}
+
+/*
+ * snd_soc_platform
+ */
+
+#define PREALLOC_BUFFER (32 * 1024)
+#define PREALLOC_BUFFER_MAX (32 * 1024)
+
+static int rsnd_pcm_new(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_dai *dai = rtd->cpu_dai;
+ struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
+ int ret;
+
+ ret = rsnd_dai_call(pcm_new, &rdai->playback, rtd);
+ if (ret)
+ return ret;
+
+ ret = rsnd_dai_call(pcm_new, &rdai->capture, rtd);
+ if (ret)
+ return ret;
+
+ return snd_pcm_lib_preallocate_pages_for_all(
+ rtd->pcm,
+ SNDRV_DMA_TYPE_DEV,
+ rtd->card->snd_card->dev,
+ PREALLOC_BUFFER, PREALLOC_BUFFER_MAX);
+}
+
+static struct snd_soc_platform_driver rsnd_soc_platform = {
+ .ops = &rsnd_pcm_ops,
+ .pcm_new = rsnd_pcm_new,
+};
+
+static const struct snd_soc_component_driver rsnd_soc_component = {
+ .name = "rsnd",
+};
+
+static int rsnd_rdai_continuance_probe(struct rsnd_priv *priv,
+ struct rsnd_dai_stream *io)
+{
+ int ret;
+
+ ret = rsnd_dai_call(probe, io, priv);
+ if (ret == -EAGAIN) {
+ /*
+ * Fallback to PIO mode
+ */
+
+ /*
+ * call "remove" for SSI/SRC/DVC
+ * SSI will be switch to PIO mode if it was DMA mode
+ * see
+ * rsnd_dma_init()
+ * rsnd_ssi_fallback()
+ */
+ rsnd_dai_call(remove, io, priv);
+
+ /*
+ * remove SRC/DVC from DAI,
+ */
+ rsnd_path_break(priv, io, src);
+ rsnd_path_break(priv, io, dvc);
+
+ /*
+ * fallback
+ */
+ rsnd_dai_call(fallback, io, priv);
+
+ /*
+ * retry to "probe".
+ * DAI has SSI which is PIO mode only now.
+ */
+ ret = rsnd_dai_call(probe, io, priv);
+ }
+
+ return ret;
+}
+
+/*
+ * rsnd probe
+ */
+static int rsnd_probe(struct platform_device *pdev)
+{
+ struct rcar_snd_info *info;
+ struct rsnd_priv *priv;
+ struct device *dev = &pdev->dev;
+ struct rsnd_dai *rdai;
+ const struct of_device_id *of_id = of_match_device(rsnd_of_match, dev);
+ const struct rsnd_of_data *of_data;
+ int (*probe_func[])(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv) = {
+ rsnd_gen_probe,
+ rsnd_dma_probe,
+ rsnd_ssi_probe,
+ rsnd_src_probe,
+ rsnd_dvc_probe,
+ rsnd_adg_probe,
+ rsnd_dai_probe,
+ };
+ int ret, i;
+
+ info = NULL;
+ of_data = NULL;
+ if (of_id) {
+ info = devm_kzalloc(&pdev->dev,
+ sizeof(struct rcar_snd_info), GFP_KERNEL);
+ of_data = of_id->data;
+ } else {
+ info = pdev->dev.platform_data;
+ }
+
+ if (!info) {
+ dev_err(dev, "driver needs R-Car sound information\n");
+ return -ENODEV;
+ }
+
+ /*
+ * init priv data
+ */
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv) {
+ dev_err(dev, "priv allocate failed\n");
+ return -ENODEV;
+ }
+
+ priv->pdev = pdev;
+ priv->info = info;
+ spin_lock_init(&priv->lock);
+
+ /*
+ * init each module
+ */
+ for (i = 0; i < ARRAY_SIZE(probe_func); i++) {
+ ret = probe_func[i](pdev, of_data, priv);
+ if (ret)
+ return ret;
+ }
+
+ for_each_rsnd_dai(rdai, priv, i) {
+ ret = rsnd_rdai_continuance_probe(priv, &rdai->playback);
+ if (ret)
+ goto exit_snd_probe;
+
+ ret = rsnd_rdai_continuance_probe(priv, &rdai->capture);
+ if (ret)
+ goto exit_snd_probe;
+ }
+
+ dev_set_drvdata(dev, priv);
+
+ /*
+ * asoc register
+ */
+ ret = snd_soc_register_platform(dev, &rsnd_soc_platform);
+ if (ret < 0) {
+ dev_err(dev, "cannot snd soc register\n");
+ return ret;
+ }
+
+ ret = snd_soc_register_component(dev, &rsnd_soc_component,
+ priv->daidrv, rsnd_rdai_nr(priv));
+ if (ret < 0) {
+ dev_err(dev, "cannot snd dai register\n");
+ goto exit_snd_soc;
+ }
+
+ pm_runtime_enable(dev);
+
+ dev_info(dev, "probed\n");
+ return ret;
+
+exit_snd_soc:
+ snd_soc_unregister_platform(dev);
+exit_snd_probe:
+ for_each_rsnd_dai(rdai, priv, i) {
+ rsnd_dai_call(remove, &rdai->playback, priv);
+ rsnd_dai_call(remove, &rdai->capture, priv);
+ }
+
+ return ret;
+}
+
+static int rsnd_remove(struct platform_device *pdev)
+{
+ struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev);
+ struct rsnd_dai *rdai;
+ void (*remove_func[])(struct platform_device *pdev,
+ struct rsnd_priv *priv) = {
+ rsnd_ssi_remove,
+ rsnd_src_remove,
+ rsnd_dvc_remove,
+ };
+ int ret = 0, i;
+
+ pm_runtime_disable(&pdev->dev);
+
+ for_each_rsnd_dai(rdai, priv, i) {
+ ret |= rsnd_dai_call(remove, &rdai->playback, priv);
+ ret |= rsnd_dai_call(remove, &rdai->capture, priv);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(remove_func); i++)
+ remove_func[i](pdev, priv);
+
+ snd_soc_unregister_component(&pdev->dev);
+ snd_soc_unregister_platform(&pdev->dev);
+
+ return ret;
+}
+
+static struct platform_driver rsnd_driver = {
+ .driver = {
+ .name = "rcar_sound",
+ .of_match_table = rsnd_of_match,
+ },
+ .probe = rsnd_probe,
+ .remove = rsnd_remove,
+};
+module_platform_driver(rsnd_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Renesas R-Car audio driver");
+MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
+MODULE_ALIAS("platform:rcar-pcm-audio");
diff --git a/kernel/sound/soc/sh/rcar/dma.c b/kernel/sound/soc/sh/rcar/dma.c
new file mode 100644
index 000000000..144308f15
--- /dev/null
+++ b/kernel/sound/soc/sh/rcar/dma.c
@@ -0,0 +1,617 @@
+/*
+ * Renesas R-Car Audio DMAC support
+ *
+ * Copyright (C) 2015 Renesas Electronics Corp.
+ * Copyright (c) 2015 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/delay.h>
+#include <linux/of_dma.h>
+#include "rsnd.h"
+
+/*
+ * Audio DMAC peri peri register
+ */
+#define PDMASAR 0x00
+#define PDMADAR 0x04
+#define PDMACHCR 0x0c
+
+/* PDMACHCR */
+#define PDMACHCR_DE (1 << 0)
+
+struct rsnd_dma_ctrl {
+ void __iomem *base;
+ int dmapp_num;
+};
+
+#define rsnd_priv_to_dmac(p) ((struct rsnd_dma_ctrl *)(p)->dma)
+
+/*
+ * Audio DMAC
+ */
+static void rsnd_dmaen_complete(void *data)
+{
+ struct rsnd_dma *dma = (struct rsnd_dma *)data;
+ struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+
+ /*
+ * Renesas sound Gen1 needs 1 DMAC,
+ * Gen2 needs 2 DMAC.
+ * In Gen2 case, it are Audio-DMAC, and Audio-DMAC-peri-peri.
+ * But, Audio-DMAC-peri-peri doesn't have interrupt,
+ * and this driver is assuming that here.
+ *
+ * If Audio-DMAC-peri-peri has interrpt,
+ * rsnd_dai_pointer_update() will be called twice,
+ * ant it will breaks io->byte_pos
+ */
+
+ rsnd_dai_pointer_update(io, io->byte_per_period);
+}
+
+static void rsnd_dmaen_stop(struct rsnd_dma *dma)
+{
+ struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma);
+
+ dmaengine_terminate_all(dmaen->chan);
+}
+
+static void rsnd_dmaen_start(struct rsnd_dma *dma)
+{
+ struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma);
+ struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ struct snd_pcm_substream *substream = io->substream;
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct dma_async_tx_descriptor *desc;
+ int is_play = rsnd_io_is_play(io);
+
+ desc = dmaengine_prep_dma_cyclic(dmaen->chan,
+ substream->runtime->dma_addr,
+ snd_pcm_lib_buffer_bytes(substream),
+ snd_pcm_lib_period_bytes(substream),
+ is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM,
+ DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+
+ if (!desc) {
+ dev_err(dev, "dmaengine_prep_slave_sg() fail\n");
+ return;
+ }
+
+ desc->callback = rsnd_dmaen_complete;
+ desc->callback_param = dma;
+
+ if (dmaengine_submit(desc) < 0) {
+ dev_err(dev, "dmaengine_submit() fail\n");
+ return;
+ }
+
+ dma_async_issue_pending(dmaen->chan);
+}
+
+struct dma_chan *rsnd_dma_request_channel(struct device_node *of_node,
+ struct rsnd_mod *mod, char *name)
+{
+ struct dma_chan *chan;
+ struct device_node *np;
+ int i = 0;
+
+ for_each_child_of_node(of_node, np) {
+ if (i == rsnd_mod_id(mod))
+ break;
+ i++;
+ }
+
+ chan = of_dma_request_slave_channel(np, name);
+
+ of_node_put(np);
+ of_node_put(of_node);
+
+ return chan;
+}
+
+static struct dma_chan *rsnd_dmaen_request_channel(struct rsnd_mod *mod_from,
+ struct rsnd_mod *mod_to)
+{
+ if ((!mod_from && !mod_to) ||
+ (mod_from && mod_to))
+ return NULL;
+
+ if (mod_from)
+ return rsnd_mod_dma_req(mod_from);
+ else
+ return rsnd_mod_dma_req(mod_to);
+}
+
+static int rsnd_dmaen_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id,
+ struct rsnd_mod *mod_from, struct rsnd_mod *mod_to)
+{
+ struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct dma_slave_config cfg = {};
+ struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ int is_play = rsnd_io_is_play(io);
+ int ret;
+
+ if (dmaen->chan) {
+ dev_err(dev, "it already has dma channel\n");
+ return -EIO;
+ }
+
+ if (dev->of_node) {
+ dmaen->chan = rsnd_dmaen_request_channel(mod_from, mod_to);
+ } else {
+ dma_cap_mask_t mask;
+
+ dma_cap_zero(mask);
+ dma_cap_set(DMA_SLAVE, mask);
+
+ dmaen->chan = dma_request_channel(mask, shdma_chan_filter,
+ (void *)id);
+ }
+ if (IS_ERR_OR_NULL(dmaen->chan)) {
+ dmaen->chan = NULL;
+ dev_err(dev, "can't get dma channel\n");
+ goto rsnd_dma_channel_err;
+ }
+
+ cfg.direction = is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM;
+ cfg.src_addr = dma->src_addr;
+ cfg.dst_addr = dma->dst_addr;
+ cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+ cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+
+ dev_dbg(dev, "dma : %pad -> %pad\n",
+ &cfg.src_addr, &cfg.dst_addr);
+
+ ret = dmaengine_slave_config(dmaen->chan, &cfg);
+ if (ret < 0)
+ goto rsnd_dma_init_err;
+
+ return 0;
+
+rsnd_dma_init_err:
+ rsnd_dma_quit(dma);
+rsnd_dma_channel_err:
+
+ /*
+ * DMA failed. try to PIO mode
+ * see
+ * rsnd_ssi_fallback()
+ * rsnd_rdai_continuance_probe()
+ */
+ return -EAGAIN;
+}
+
+static void rsnd_dmaen_quit(struct rsnd_dma *dma)
+{
+ struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma);
+
+ if (dmaen->chan)
+ dma_release_channel(dmaen->chan);
+
+ dmaen->chan = NULL;
+}
+
+static struct rsnd_dma_ops rsnd_dmaen_ops = {
+ .start = rsnd_dmaen_start,
+ .stop = rsnd_dmaen_stop,
+ .init = rsnd_dmaen_init,
+ .quit = rsnd_dmaen_quit,
+};
+
+/*
+ * Audio DMAC peri peri
+ */
+static const u8 gen2_id_table_ssiu[] = {
+ 0x00, /* SSI00 */
+ 0x04, /* SSI10 */
+ 0x08, /* SSI20 */
+ 0x0c, /* SSI3 */
+ 0x0d, /* SSI4 */
+ 0x0e, /* SSI5 */
+ 0x0f, /* SSI6 */
+ 0x10, /* SSI7 */
+ 0x11, /* SSI8 */
+ 0x12, /* SSI90 */
+};
+static const u8 gen2_id_table_scu[] = {
+ 0x2d, /* SCU_SRCI0 */
+ 0x2e, /* SCU_SRCI1 */
+ 0x2f, /* SCU_SRCI2 */
+ 0x30, /* SCU_SRCI3 */
+ 0x31, /* SCU_SRCI4 */
+ 0x32, /* SCU_SRCI5 */
+ 0x33, /* SCU_SRCI6 */
+ 0x34, /* SCU_SRCI7 */
+ 0x35, /* SCU_SRCI8 */
+ 0x36, /* SCU_SRCI9 */
+};
+static const u8 gen2_id_table_cmd[] = {
+ 0x37, /* SCU_CMD0 */
+ 0x38, /* SCU_CMD1 */
+};
+
+static u32 rsnd_dmapp_get_id(struct rsnd_mod *mod)
+{
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ struct rsnd_mod *ssi = rsnd_io_to_mod_ssi(io);
+ struct rsnd_mod *src = rsnd_io_to_mod_src(io);
+ struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io);
+ const u8 *entry = NULL;
+ int id = rsnd_mod_id(mod);
+ int size = 0;
+
+ if (mod == ssi) {
+ entry = gen2_id_table_ssiu;
+ size = ARRAY_SIZE(gen2_id_table_ssiu);
+ } else if (mod == src) {
+ entry = gen2_id_table_scu;
+ size = ARRAY_SIZE(gen2_id_table_scu);
+ } else if (mod == dvc) {
+ entry = gen2_id_table_cmd;
+ size = ARRAY_SIZE(gen2_id_table_cmd);
+ }
+
+ if (!entry)
+ return 0xFF;
+
+ if (size <= id)
+ return 0xFF;
+
+ return entry[id];
+}
+
+static u32 rsnd_dmapp_get_chcr(struct rsnd_mod *mod_from,
+ struct rsnd_mod *mod_to)
+{
+ return (rsnd_dmapp_get_id(mod_from) << 24) +
+ (rsnd_dmapp_get_id(mod_to) << 16);
+}
+
+#define rsnd_dmapp_addr(dmac, dma, reg) \
+ (dmac->base + 0x20 + reg + \
+ (0x10 * rsnd_dma_to_dmapp(dma)->dmapp_id))
+static void rsnd_dmapp_write(struct rsnd_dma *dma, u32 data, u32 reg)
+{
+ struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv);
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ dev_dbg(dev, "w %p : %08x\n", rsnd_dmapp_addr(dmac, dma, reg), data);
+
+ iowrite32(data, rsnd_dmapp_addr(dmac, dma, reg));
+}
+
+static u32 rsnd_dmapp_read(struct rsnd_dma *dma, u32 reg)
+{
+ struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv);
+
+ return ioread32(rsnd_dmapp_addr(dmac, dma, reg));
+}
+
+static void rsnd_dmapp_stop(struct rsnd_dma *dma)
+{
+ int i;
+
+ rsnd_dmapp_write(dma, 0, PDMACHCR);
+
+ for (i = 0; i < 1024; i++) {
+ if (0 == rsnd_dmapp_read(dma, PDMACHCR))
+ return;
+ udelay(1);
+ }
+}
+
+static void rsnd_dmapp_start(struct rsnd_dma *dma)
+{
+ struct rsnd_dmapp *dmapp = rsnd_dma_to_dmapp(dma);
+
+ rsnd_dmapp_write(dma, dma->src_addr, PDMASAR);
+ rsnd_dmapp_write(dma, dma->dst_addr, PDMADAR);
+ rsnd_dmapp_write(dma, dmapp->chcr, PDMACHCR);
+}
+
+static int rsnd_dmapp_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id,
+ struct rsnd_mod *mod_from, struct rsnd_mod *mod_to)
+{
+ struct rsnd_dmapp *dmapp = rsnd_dma_to_dmapp(dma);
+ struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv);
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ dmapp->dmapp_id = dmac->dmapp_num;
+ dmapp->chcr = rsnd_dmapp_get_chcr(mod_from, mod_to) | PDMACHCR_DE;
+
+ dmac->dmapp_num++;
+
+ rsnd_dmapp_stop(dma);
+
+ dev_dbg(dev, "id/src/dst/chcr = %d/%pad/%pad/%08x\n",
+ dmapp->dmapp_id, &dma->src_addr, &dma->dst_addr, dmapp->chcr);
+
+ return 0;
+}
+
+static struct rsnd_dma_ops rsnd_dmapp_ops = {
+ .start = rsnd_dmapp_start,
+ .stop = rsnd_dmapp_stop,
+ .init = rsnd_dmapp_init,
+ .quit = rsnd_dmapp_stop,
+};
+
+/*
+ * Common DMAC Interface
+ */
+
+/*
+ * DMA read/write register offset
+ *
+ * RSND_xxx_I_N for Audio DMAC input
+ * RSND_xxx_O_N for Audio DMAC output
+ * RSND_xxx_I_P for Audio DMAC peri peri input
+ * RSND_xxx_O_P for Audio DMAC peri peri output
+ *
+ * ex) R-Car H2 case
+ * mod / DMAC in / DMAC out / DMAC PP in / DMAC pp out
+ * SSI : 0xec541000 / 0xec241008 / 0xec24100c
+ * SSIU: 0xec541000 / 0xec100000 / 0xec100000 / 0xec400000 / 0xec400000
+ * SCU : 0xec500000 / 0xec000000 / 0xec004000 / 0xec300000 / 0xec304000
+ * CMD : 0xec500000 / / 0xec008000 0xec308000
+ */
+#define RDMA_SSI_I_N(addr, i) (addr ##_reg - 0x00300000 + (0x40 * i) + 0x8)
+#define RDMA_SSI_O_N(addr, i) (addr ##_reg - 0x00300000 + (0x40 * i) + 0xc)
+
+#define RDMA_SSIU_I_N(addr, i) (addr ##_reg - 0x00441000 + (0x1000 * i))
+#define RDMA_SSIU_O_N(addr, i) (addr ##_reg - 0x00441000 + (0x1000 * i))
+
+#define RDMA_SSIU_I_P(addr, i) (addr ##_reg - 0x00141000 + (0x1000 * i))
+#define RDMA_SSIU_O_P(addr, i) (addr ##_reg - 0x00141000 + (0x1000 * i))
+
+#define RDMA_SRC_I_N(addr, i) (addr ##_reg - 0x00500000 + (0x400 * i))
+#define RDMA_SRC_O_N(addr, i) (addr ##_reg - 0x004fc000 + (0x400 * i))
+
+#define RDMA_SRC_I_P(addr, i) (addr ##_reg - 0x00200000 + (0x400 * i))
+#define RDMA_SRC_O_P(addr, i) (addr ##_reg - 0x001fc000 + (0x400 * i))
+
+#define RDMA_CMD_O_N(addr, i) (addr ##_reg - 0x004f8000 + (0x400 * i))
+#define RDMA_CMD_O_P(addr, i) (addr ##_reg - 0x001f8000 + (0x400 * i))
+
+static dma_addr_t
+rsnd_gen2_dma_addr(struct rsnd_priv *priv,
+ struct rsnd_mod *mod,
+ int is_play, int is_from)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ phys_addr_t ssi_reg = rsnd_gen_get_phy_addr(priv, RSND_GEN2_SSI);
+ phys_addr_t src_reg = rsnd_gen_get_phy_addr(priv, RSND_GEN2_SCU);
+ int is_ssi = !!(rsnd_io_to_mod_ssi(io) == mod);
+ int use_src = !!rsnd_io_to_mod_src(io);
+ int use_dvc = !!rsnd_io_to_mod_dvc(io);
+ int id = rsnd_mod_id(mod);
+ struct dma_addr {
+ dma_addr_t out_addr;
+ dma_addr_t in_addr;
+ } dma_addrs[3][2][3] = {
+ /* SRC */
+ {{{ 0, 0 },
+ /* Capture */
+ { RDMA_SRC_O_N(src, id), RDMA_SRC_I_P(src, id) },
+ { RDMA_CMD_O_N(src, id), RDMA_SRC_I_P(src, id) } },
+ /* Playback */
+ {{ 0, 0, },
+ { RDMA_SRC_O_P(src, id), RDMA_SRC_I_N(src, id) },
+ { RDMA_CMD_O_P(src, id), RDMA_SRC_I_N(src, id) } }
+ },
+ /* SSI */
+ /* Capture */
+ {{{ RDMA_SSI_O_N(ssi, id), 0 },
+ { RDMA_SSIU_O_P(ssi, id), 0 },
+ { RDMA_SSIU_O_P(ssi, id), 0 } },
+ /* Playback */
+ {{ 0, RDMA_SSI_I_N(ssi, id) },
+ { 0, RDMA_SSIU_I_P(ssi, id) },
+ { 0, RDMA_SSIU_I_P(ssi, id) } }
+ },
+ /* SSIU */
+ /* Capture */
+ {{{ RDMA_SSIU_O_N(ssi, id), 0 },
+ { RDMA_SSIU_O_P(ssi, id), 0 },
+ { RDMA_SSIU_O_P(ssi, id), 0 } },
+ /* Playback */
+ {{ 0, RDMA_SSIU_I_N(ssi, id) },
+ { 0, RDMA_SSIU_I_P(ssi, id) },
+ { 0, RDMA_SSIU_I_P(ssi, id) } } },
+ };
+
+ /* it shouldn't happen */
+ if (use_dvc && !use_src)
+ dev_err(dev, "DVC is selected without SRC\n");
+
+ /* use SSIU or SSI ? */
+ if (is_ssi && rsnd_ssi_use_busif(mod))
+ is_ssi++;
+
+ return (is_from) ?
+ dma_addrs[is_ssi][is_play][use_src + use_dvc].out_addr :
+ dma_addrs[is_ssi][is_play][use_src + use_dvc].in_addr;
+}
+
+static dma_addr_t rsnd_dma_addr(struct rsnd_priv *priv,
+ struct rsnd_mod *mod,
+ int is_play, int is_from)
+{
+ /*
+ * gen1 uses default DMA addr
+ */
+ if (rsnd_is_gen1(priv))
+ return 0;
+
+ if (!mod)
+ return 0;
+
+ return rsnd_gen2_dma_addr(priv, mod, is_play, is_from);
+}
+
+#define MOD_MAX 4 /* MEM/SSI/SRC/DVC */
+static void rsnd_dma_of_path(struct rsnd_dma *dma,
+ int is_play,
+ struct rsnd_mod **mod_from,
+ struct rsnd_mod **mod_to)
+{
+ struct rsnd_mod *this = rsnd_dma_to_mod(dma);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(this);
+ struct rsnd_mod *ssi = rsnd_io_to_mod_ssi(io);
+ struct rsnd_mod *src = rsnd_io_to_mod_src(io);
+ struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io);
+ struct rsnd_mod *mod[MOD_MAX];
+ int i, index;
+
+
+ for (i = 0; i < MOD_MAX; i++)
+ mod[i] = NULL;
+
+ /*
+ * in play case...
+ *
+ * src -> dst
+ *
+ * mem -> SSI
+ * mem -> SRC -> SSI
+ * mem -> SRC -> DVC -> SSI
+ */
+ mod[0] = NULL; /* for "mem" */
+ index = 1;
+ for (i = 1; i < MOD_MAX; i++) {
+ if (!src) {
+ mod[i] = ssi;
+ } else if (!dvc) {
+ mod[i] = src;
+ src = NULL;
+ } else {
+ if ((!is_play) && (this == src))
+ this = dvc;
+
+ mod[i] = (is_play) ? src : dvc;
+ i++;
+ mod[i] = (is_play) ? dvc : src;
+ src = NULL;
+ dvc = NULL;
+ }
+
+ if (mod[i] == this)
+ index = i;
+
+ if (mod[i] == ssi)
+ break;
+ }
+
+ if (is_play) {
+ *mod_from = mod[index - 1];
+ *mod_to = mod[index];
+ } else {
+ *mod_from = mod[index];
+ *mod_to = mod[index - 1];
+ }
+}
+
+void rsnd_dma_stop(struct rsnd_dma *dma)
+{
+ dma->ops->stop(dma);
+}
+
+void rsnd_dma_start(struct rsnd_dma *dma)
+{
+ dma->ops->start(dma);
+}
+
+void rsnd_dma_quit(struct rsnd_dma *dma)
+{
+ struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv);
+
+ if (!dmac)
+ return;
+
+ dma->ops->quit(dma);
+}
+
+int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id)
+{
+ struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
+ struct rsnd_mod *mod_from;
+ struct rsnd_mod *mod_to;
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv);
+ int is_play = rsnd_io_is_play(io);
+
+ /*
+ * DMA failed. try to PIO mode
+ * see
+ * rsnd_ssi_fallback()
+ * rsnd_rdai_continuance_probe()
+ */
+ if (!dmac)
+ return -EAGAIN;
+
+ rsnd_dma_of_path(dma, is_play, &mod_from, &mod_to);
+
+ dma->src_addr = rsnd_dma_addr(priv, mod_from, is_play, 1);
+ dma->dst_addr = rsnd_dma_addr(priv, mod_to, is_play, 0);
+
+ /* for Gen2 */
+ if (mod_from && mod_to)
+ dma->ops = &rsnd_dmapp_ops;
+ else
+ dma->ops = &rsnd_dmaen_ops;
+
+ /* for Gen1, overwrite */
+ if (rsnd_is_gen1(priv))
+ dma->ops = &rsnd_dmaen_ops;
+
+ return dma->ops->init(priv, dma, id, mod_from, mod_to);
+}
+
+int rsnd_dma_probe(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_dma_ctrl *dmac;
+ struct resource *res;
+
+ /*
+ * for Gen1
+ */
+ if (rsnd_is_gen1(priv))
+ return 0;
+
+ /*
+ * for Gen2
+ */
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "audmapp");
+ dmac = devm_kzalloc(dev, sizeof(*dmac), GFP_KERNEL);
+ if (!dmac || !res) {
+ dev_err(dev, "dma allocate failed\n");
+ return 0; /* it will be PIO mode */
+ }
+
+ dmac->dmapp_num = 0;
+ dmac->base = devm_ioremap_resource(dev, res);
+ if (IS_ERR(dmac->base))
+ return PTR_ERR(dmac->base);
+
+ priv->dma = dmac;
+
+ return 0;
+}
diff --git a/kernel/sound/soc/sh/rcar/dvc.c b/kernel/sound/soc/sh/rcar/dvc.c
new file mode 100644
index 000000000..e5fcb062a
--- /dev/null
+++ b/kernel/sound/soc/sh/rcar/dvc.c
@@ -0,0 +1,387 @@
+/*
+ * Renesas R-Car DVC support
+ *
+ * Copyright (C) 2014 Renesas Solutions Corp.
+ * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include "rsnd.h"
+
+#define RSND_DVC_NAME_SIZE 16
+
+#define DVC_NAME "dvc"
+
+struct rsnd_dvc {
+ struct rsnd_dvc_platform_info *info; /* rcar_snd.h */
+ struct rsnd_mod mod;
+ struct rsnd_kctrl_cfg_m volume;
+ struct rsnd_kctrl_cfg_m mute;
+ struct rsnd_kctrl_cfg_s ren; /* Ramp Enable */
+ struct rsnd_kctrl_cfg_s rup; /* Ramp Rate Up */
+ struct rsnd_kctrl_cfg_s rdown; /* Ramp Rate Down */
+};
+
+#define rsnd_dvc_of_node(priv) \
+ of_get_child_by_name(rsnd_priv_to_dev(priv)->of_node, "rcar_sound,dvc")
+
+#define rsnd_mod_to_dvc(_mod) \
+ container_of((_mod), struct rsnd_dvc, mod)
+
+#define for_each_rsnd_dvc(pos, priv, i) \
+ for ((i) = 0; \
+ ((i) < rsnd_dvc_nr(priv)) && \
+ ((pos) = (struct rsnd_dvc *)(priv)->dvc + i); \
+ i++)
+
+static const char * const dvc_ramp_rate[] = {
+ "128 dB/1 step", /* 00000 */
+ "64 dB/1 step", /* 00001 */
+ "32 dB/1 step", /* 00010 */
+ "16 dB/1 step", /* 00011 */
+ "8 dB/1 step", /* 00100 */
+ "4 dB/1 step", /* 00101 */
+ "2 dB/1 step", /* 00110 */
+ "1 dB/1 step", /* 00111 */
+ "0.5 dB/1 step", /* 01000 */
+ "0.25 dB/1 step", /* 01001 */
+ "0.125 dB/1 step", /* 01010 */
+ "0.125 dB/2 steps", /* 01011 */
+ "0.125 dB/4 steps", /* 01100 */
+ "0.125 dB/8 steps", /* 01101 */
+ "0.125 dB/16 steps", /* 01110 */
+ "0.125 dB/32 steps", /* 01111 */
+ "0.125 dB/64 steps", /* 10000 */
+ "0.125 dB/128 steps", /* 10001 */
+ "0.125 dB/256 steps", /* 10010 */
+ "0.125 dB/512 steps", /* 10011 */
+ "0.125 dB/1024 steps", /* 10100 */
+ "0.125 dB/2048 steps", /* 10101 */
+ "0.125 dB/4096 steps", /* 10110 */
+ "0.125 dB/8192 steps", /* 10111 */
+};
+
+static void rsnd_dvc_volume_update(struct rsnd_mod *mod)
+{
+ struct rsnd_dvc *dvc = rsnd_mod_to_dvc(mod);
+ u32 val[RSND_DVC_CHANNELS];
+ u32 dvucr = 0;
+ u32 mute = 0;
+ int i;
+
+ for (i = 0; i < dvc->mute.cfg.size; i++)
+ mute |= (!!dvc->mute.cfg.val[i]) << i;
+
+ /* Disable DVC Register access */
+ rsnd_mod_write(mod, DVC_DVUER, 0);
+
+ /* Enable Ramp */
+ if (dvc->ren.val) {
+ dvucr |= 0x10;
+
+ /* Digital Volume Max */
+ for (i = 0; i < RSND_DVC_CHANNELS; i++)
+ val[i] = dvc->volume.cfg.max;
+
+ rsnd_mod_write(mod, DVC_VRCTR, 0xff);
+ rsnd_mod_write(mod, DVC_VRPDR, dvc->rup.val << 8 |
+ dvc->rdown.val);
+ /*
+ * FIXME !!
+ * use scale-downed Digital Volume
+ * as Volume Ramp
+ * 7F FFFF -> 3FF
+ */
+ rsnd_mod_write(mod, DVC_VRDBR,
+ 0x3ff - (dvc->volume.val[0] >> 13));
+
+ } else {
+ for (i = 0; i < RSND_DVC_CHANNELS; i++)
+ val[i] = dvc->volume.val[i];
+ }
+
+ /* Enable Digital Volume */
+ dvucr |= 0x100;
+ rsnd_mod_write(mod, DVC_VOL0R, val[0]);
+ rsnd_mod_write(mod, DVC_VOL1R, val[1]);
+
+ /* Enable Mute */
+ if (mute) {
+ dvucr |= 0x1;
+ rsnd_mod_write(mod, DVC_ZCMCR, mute);
+ }
+
+ rsnd_mod_write(mod, DVC_DVUCR, dvucr);
+
+ /* Enable DVC Register access */
+ rsnd_mod_write(mod, DVC_DVUER, 1);
+}
+
+static int rsnd_dvc_remove_gen2(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_dvc *dvc = rsnd_mod_to_dvc(mod);
+
+ rsnd_kctrl_remove(dvc->volume);
+ rsnd_kctrl_remove(dvc->mute);
+ rsnd_kctrl_remove(dvc->ren);
+ rsnd_kctrl_remove(dvc->rup);
+ rsnd_kctrl_remove(dvc->rdown);
+
+ return 0;
+}
+
+static int rsnd_dvc_init(struct rsnd_mod *dvc_mod,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(dvc_mod);
+ struct rsnd_mod *src_mod = rsnd_io_to_mod_src(io);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ int dvc_id = rsnd_mod_id(dvc_mod);
+ int src_id = rsnd_mod_id(src_mod);
+ u32 route[] = {
+ [0] = 0x30000,
+ [1] = 0x30001,
+ [2] = 0x40000,
+ [3] = 0x10000,
+ [4] = 0x20000,
+ [5] = 0x40100
+ };
+
+ if (src_id >= ARRAY_SIZE(route)) {
+ dev_err(dev, "DVC%d isn't connected to SRC%d\n", dvc_id, src_id);
+ return -EINVAL;
+ }
+
+ rsnd_mod_hw_start(dvc_mod);
+
+ /*
+ * fixme
+ * it doesn't support CTU/MIX
+ */
+ rsnd_mod_write(dvc_mod, CMD_ROUTE_SLCT, route[src_id]);
+
+ rsnd_mod_write(dvc_mod, DVC_SWRSR, 0);
+ rsnd_mod_write(dvc_mod, DVC_SWRSR, 1);
+
+ rsnd_mod_write(dvc_mod, DVC_DVUIR, 1);
+
+ rsnd_mod_write(dvc_mod, DVC_ADINR, rsnd_get_adinr(dvc_mod));
+
+ /* ch0/ch1 Volume */
+ rsnd_dvc_volume_update(dvc_mod);
+
+ rsnd_mod_write(dvc_mod, DVC_DVUIR, 0);
+
+ rsnd_adg_set_cmd_timsel_gen2(dvc_mod, io);
+
+ return 0;
+}
+
+static int rsnd_dvc_quit(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ rsnd_mod_hw_stop(mod);
+
+ return 0;
+}
+
+static int rsnd_dvc_start(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ rsnd_mod_write(mod, CMD_CTRL, 0x10);
+
+ return 0;
+}
+
+static int rsnd_dvc_stop(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ rsnd_mod_write(mod, CMD_CTRL, 0);
+
+ return 0;
+}
+
+static int rsnd_dvc_pcm_new(struct rsnd_mod *mod,
+ struct snd_soc_pcm_runtime *rtd)
+{
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ struct rsnd_dvc *dvc = rsnd_mod_to_dvc(mod);
+ int is_play = rsnd_io_is_play(io);
+ int ret;
+
+ /* Volume */
+ ret = rsnd_kctrl_new_m(mod, rtd,
+ is_play ?
+ "DVC Out Playback Volume" : "DVC In Capture Volume",
+ rsnd_dvc_volume_update,
+ &dvc->volume, 0x00800000 - 1);
+ if (ret < 0)
+ return ret;
+
+ /* Mute */
+ ret = rsnd_kctrl_new_m(mod, rtd,
+ is_play ?
+ "DVC Out Mute Switch" : "DVC In Mute Switch",
+ rsnd_dvc_volume_update,
+ &dvc->mute, 1);
+ if (ret < 0)
+ return ret;
+
+ /* Ramp */
+ ret = rsnd_kctrl_new_s(mod, rtd,
+ is_play ?
+ "DVC Out Ramp Switch" : "DVC In Ramp Switch",
+ rsnd_dvc_volume_update,
+ &dvc->ren, 1);
+ if (ret < 0)
+ return ret;
+
+ ret = rsnd_kctrl_new_e(mod, rtd,
+ is_play ?
+ "DVC Out Ramp Up Rate" : "DVC In Ramp Up Rate",
+ &dvc->rup,
+ rsnd_dvc_volume_update,
+ dvc_ramp_rate, ARRAY_SIZE(dvc_ramp_rate));
+ if (ret < 0)
+ return ret;
+
+ ret = rsnd_kctrl_new_e(mod, rtd,
+ is_play ?
+ "DVC Out Ramp Down Rate" : "DVC In Ramp Down Rate",
+ &dvc->rdown,
+ rsnd_dvc_volume_update,
+ dvc_ramp_rate, ARRAY_SIZE(dvc_ramp_rate));
+
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static struct dma_chan *rsnd_dvc_dma_req(struct rsnd_mod *mod)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+
+ return rsnd_dma_request_channel(rsnd_dvc_of_node(priv),
+ mod, "tx");
+}
+
+static struct rsnd_mod_ops rsnd_dvc_ops = {
+ .name = DVC_NAME,
+ .dma_req = rsnd_dvc_dma_req,
+ .remove = rsnd_dvc_remove_gen2,
+ .init = rsnd_dvc_init,
+ .quit = rsnd_dvc_quit,
+ .start = rsnd_dvc_start,
+ .stop = rsnd_dvc_stop,
+ .pcm_new = rsnd_dvc_pcm_new,
+};
+
+struct rsnd_mod *rsnd_dvc_mod_get(struct rsnd_priv *priv, int id)
+{
+ if (WARN_ON(id < 0 || id >= rsnd_dvc_nr(priv)))
+ id = 0;
+
+ return &((struct rsnd_dvc *)(priv->dvc) + id)->mod;
+}
+
+static void rsnd_of_parse_dvc(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv)
+{
+ struct device_node *node;
+ struct rsnd_dvc_platform_info *dvc_info;
+ struct rcar_snd_info *info = rsnd_priv_to_info(priv);
+ struct device *dev = &pdev->dev;
+ int nr;
+
+ if (!of_data)
+ return;
+
+ node = of_get_child_by_name(dev->of_node, "rcar_sound,dvc");
+ if (!node)
+ return;
+
+ nr = of_get_child_count(node);
+ if (!nr)
+ goto rsnd_of_parse_dvc_end;
+
+ dvc_info = devm_kzalloc(dev,
+ sizeof(struct rsnd_dvc_platform_info) * nr,
+ GFP_KERNEL);
+ if (!dvc_info) {
+ dev_err(dev, "dvc info allocation error\n");
+ goto rsnd_of_parse_dvc_end;
+ }
+
+ info->dvc_info = dvc_info;
+ info->dvc_info_nr = nr;
+
+rsnd_of_parse_dvc_end:
+ of_node_put(node);
+}
+
+int rsnd_dvc_probe(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv)
+{
+ struct rcar_snd_info *info = rsnd_priv_to_info(priv);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_dvc *dvc;
+ struct clk *clk;
+ char name[RSND_DVC_NAME_SIZE];
+ int i, nr, ret;
+
+ rsnd_of_parse_dvc(pdev, of_data, priv);
+
+ nr = info->dvc_info_nr;
+ if (!nr)
+ return 0;
+
+ /* This driver doesn't support Gen1 at this point */
+ if (rsnd_is_gen1(priv)) {
+ dev_warn(dev, "CMD is not supported on Gen1\n");
+ return -EINVAL;
+ }
+
+ dvc = devm_kzalloc(dev, sizeof(*dvc) * nr, GFP_KERNEL);
+ if (!dvc) {
+ dev_err(dev, "CMD allocate failed\n");
+ return -ENOMEM;
+ }
+
+ priv->dvc_nr = nr;
+ priv->dvc = dvc;
+
+ for_each_rsnd_dvc(dvc, priv, i) {
+ snprintf(name, RSND_DVC_NAME_SIZE, "%s.%d",
+ DVC_NAME, i);
+
+ clk = devm_clk_get(dev, name);
+ if (IS_ERR(clk))
+ return PTR_ERR(clk);
+
+ dvc->info = &info->dvc_info[i];
+
+ ret = rsnd_mod_init(&dvc->mod, &rsnd_dvc_ops,
+ clk, RSND_MOD_DVC, i);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+void rsnd_dvc_remove(struct platform_device *pdev,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_dvc *dvc;
+ int i;
+
+ for_each_rsnd_dvc(dvc, priv, i) {
+ rsnd_mod_quit(&dvc->mod);
+ }
+}
diff --git a/kernel/sound/soc/sh/rcar/gen.c b/kernel/sound/soc/sh/rcar/gen.c
new file mode 100644
index 000000000..8c7dc51b1
--- /dev/null
+++ b/kernel/sound/soc/sh/rcar/gen.c
@@ -0,0 +1,393 @@
+/*
+ * Renesas R-Car Gen1 SRU/SSI support
+ *
+ * Copyright (C) 2013 Renesas Solutions Corp.
+ * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * #define DEBUG
+ *
+ * you can also add below in
+ * ${LINUX}/drivers/base/regmap/regmap.c
+ * for regmap debug
+ *
+ * #define LOG_DEVICE "xxxx.rcar_sound"
+ */
+
+#include "rsnd.h"
+
+struct rsnd_gen {
+ void __iomem *base[RSND_BASE_MAX];
+
+ struct rsnd_gen_ops *ops;
+
+ struct regmap *regmap[RSND_BASE_MAX];
+ struct regmap_field *regs[RSND_REG_MAX];
+ phys_addr_t res[RSND_REG_MAX];
+};
+
+#define rsnd_priv_to_gen(p) ((struct rsnd_gen *)(p)->gen)
+
+struct rsnd_regmap_field_conf {
+ int idx;
+ unsigned int reg_offset;
+ unsigned int id_offset;
+};
+
+#define RSND_REG_SET(id, offset, _id_offset) \
+{ \
+ .idx = id, \
+ .reg_offset = offset, \
+ .id_offset = _id_offset, \
+}
+/* single address mapping */
+#define RSND_GEN_S_REG(id, offset) \
+ RSND_REG_SET(RSND_REG_##id, offset, 0)
+
+/* multi address mapping */
+#define RSND_GEN_M_REG(id, offset, _id_offset) \
+ RSND_REG_SET(RSND_REG_##id, offset, _id_offset)
+
+/*
+ * basic function
+ */
+static int rsnd_is_accessible_reg(struct rsnd_priv *priv,
+ struct rsnd_gen *gen, enum rsnd_reg reg)
+{
+ if (!gen->regs[reg]) {
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ dev_err(dev, "unsupported register access %x\n", reg);
+ return 0;
+ }
+
+ return 1;
+}
+
+u32 rsnd_read(struct rsnd_priv *priv,
+ struct rsnd_mod *mod, enum rsnd_reg reg)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
+ u32 val;
+
+ if (!rsnd_is_accessible_reg(priv, gen, reg))
+ return 0;
+
+ dev_dbg(dev, "r %s[%d] - %4d : %08x\n",
+ rsnd_mod_name(mod), rsnd_mod_id(mod), reg, val);
+
+ regmap_fields_read(gen->regs[reg], rsnd_mod_id(mod), &val);
+
+ return val;
+}
+
+void rsnd_write(struct rsnd_priv *priv,
+ struct rsnd_mod *mod,
+ enum rsnd_reg reg, u32 data)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
+
+ if (!rsnd_is_accessible_reg(priv, gen, reg))
+ return;
+
+ dev_dbg(dev, "w %s[%d] - %4d : %08x\n",
+ rsnd_mod_name(mod), rsnd_mod_id(mod), reg, data);
+
+ regmap_fields_write(gen->regs[reg], rsnd_mod_id(mod), data);
+}
+
+void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod,
+ enum rsnd_reg reg, u32 mask, u32 data)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
+
+ if (!rsnd_is_accessible_reg(priv, gen, reg))
+ return;
+
+ dev_dbg(dev, "b %s[%d] - %4d : %08x/%08x\n",
+ rsnd_mod_name(mod), rsnd_mod_id(mod), reg, data, mask);
+
+ regmap_fields_update_bits(gen->regs[reg], rsnd_mod_id(mod),
+ mask, data);
+}
+
+phys_addr_t rsnd_gen_get_phy_addr(struct rsnd_priv *priv, int reg_id)
+{
+ struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
+
+ return gen->res[reg_id];
+}
+
+#define rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf) \
+ _rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf, ARRAY_SIZE(conf))
+static int _rsnd_gen_regmap_init(struct rsnd_priv *priv,
+ int id_size,
+ int reg_id,
+ const char *name,
+ struct rsnd_regmap_field_conf *conf,
+ int conf_size)
+{
+ struct platform_device *pdev = rsnd_priv_to_pdev(priv);
+ struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct resource *res;
+ struct regmap_config regc;
+ struct regmap_field *regs;
+ struct regmap *regmap;
+ struct reg_field regf;
+ void __iomem *base;
+ int i;
+
+ memset(&regc, 0, sizeof(regc));
+ regc.reg_bits = 32;
+ regc.val_bits = 32;
+ regc.reg_stride = 4;
+ regc.name = name;
+
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name);
+ if (!res)
+ res = platform_get_resource(pdev, IORESOURCE_MEM, reg_id);
+ if (!res)
+ return -ENODEV;
+
+ base = devm_ioremap_resource(dev, res);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+
+ regmap = devm_regmap_init_mmio(dev, base, &regc);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
+ gen->base[reg_id] = base;
+ gen->regmap[reg_id] = regmap;
+ gen->res[reg_id] = res->start;
+
+ for (i = 0; i < conf_size; i++) {
+
+ regf.reg = conf[i].reg_offset;
+ regf.id_offset = conf[i].id_offset;
+ regf.lsb = 0;
+ regf.msb = 31;
+ regf.id_size = id_size;
+
+ regs = devm_regmap_field_alloc(dev, regmap, regf);
+ if (IS_ERR(regs))
+ return PTR_ERR(regs);
+
+ gen->regs[conf[i].idx] = regs;
+ }
+
+ return 0;
+}
+
+/*
+ * Gen2
+ */
+static int rsnd_gen2_probe(struct platform_device *pdev,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_regmap_field_conf conf_ssiu[] = {
+ RSND_GEN_S_REG(SSI_MODE0, 0x800),
+ RSND_GEN_S_REG(SSI_MODE1, 0x804),
+ /* FIXME: it needs SSI_MODE2/3 in the future */
+ RSND_GEN_M_REG(SSI_BUSIF_MODE, 0x0, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF_ADINR, 0x4, 0x80),
+ RSND_GEN_M_REG(BUSIF_DALIGN, 0x8, 0x80),
+ RSND_GEN_M_REG(SSI_CTRL, 0x10, 0x80),
+ RSND_GEN_M_REG(INT_ENABLE, 0x18, 0x80),
+ };
+ struct rsnd_regmap_field_conf conf_scu[] = {
+ RSND_GEN_M_REG(SRC_BUSIF_MODE, 0x0, 0x20),
+ RSND_GEN_M_REG(SRC_ROUTE_MODE0, 0xc, 0x20),
+ RSND_GEN_M_REG(SRC_CTRL, 0x10, 0x20),
+ RSND_GEN_M_REG(SRC_INT_ENABLE0, 0x18, 0x20),
+ RSND_GEN_M_REG(CMD_ROUTE_SLCT, 0x18c, 0x20),
+ RSND_GEN_M_REG(CMD_CTRL, 0x190, 0x20),
+ RSND_GEN_S_REG(SCU_SYS_STATUS0, 0x1c8),
+ RSND_GEN_S_REG(SCU_SYS_INT_EN0, 0x1cc),
+ RSND_GEN_S_REG(SCU_SYS_STATUS1, 0x1d0),
+ RSND_GEN_S_REG(SCU_SYS_INT_EN1, 0x1c4),
+ RSND_GEN_M_REG(SRC_SWRSR, 0x200, 0x40),
+ RSND_GEN_M_REG(SRC_SRCIR, 0x204, 0x40),
+ RSND_GEN_M_REG(SRC_ADINR, 0x214, 0x40),
+ RSND_GEN_M_REG(SRC_IFSCR, 0x21c, 0x40),
+ RSND_GEN_M_REG(SRC_IFSVR, 0x220, 0x40),
+ RSND_GEN_M_REG(SRC_SRCCR, 0x224, 0x40),
+ RSND_GEN_M_REG(SRC_BSDSR, 0x22c, 0x40),
+ RSND_GEN_M_REG(SRC_BSISR, 0x238, 0x40),
+ RSND_GEN_M_REG(DVC_SWRSR, 0xe00, 0x100),
+ RSND_GEN_M_REG(DVC_DVUIR, 0xe04, 0x100),
+ RSND_GEN_M_REG(DVC_ADINR, 0xe08, 0x100),
+ RSND_GEN_M_REG(DVC_DVUCR, 0xe10, 0x100),
+ RSND_GEN_M_REG(DVC_ZCMCR, 0xe14, 0x100),
+ RSND_GEN_M_REG(DVC_VRCTR, 0xe18, 0x100),
+ RSND_GEN_M_REG(DVC_VRPDR, 0xe1c, 0x100),
+ RSND_GEN_M_REG(DVC_VRDBR, 0xe20, 0x100),
+ RSND_GEN_M_REG(DVC_VOL0R, 0xe28, 0x100),
+ RSND_GEN_M_REG(DVC_VOL1R, 0xe2c, 0x100),
+ RSND_GEN_M_REG(DVC_DVUER, 0xe48, 0x100),
+ };
+ struct rsnd_regmap_field_conf conf_adg[] = {
+ RSND_GEN_S_REG(BRRA, 0x00),
+ RSND_GEN_S_REG(BRRB, 0x04),
+ RSND_GEN_S_REG(SSICKR, 0x08),
+ RSND_GEN_S_REG(AUDIO_CLK_SEL0, 0x0c),
+ RSND_GEN_S_REG(AUDIO_CLK_SEL1, 0x10),
+ RSND_GEN_S_REG(AUDIO_CLK_SEL2, 0x14),
+ RSND_GEN_S_REG(DIV_EN, 0x30),
+ RSND_GEN_S_REG(SRCIN_TIMSEL0, 0x34),
+ RSND_GEN_S_REG(SRCIN_TIMSEL1, 0x38),
+ RSND_GEN_S_REG(SRCIN_TIMSEL2, 0x3c),
+ RSND_GEN_S_REG(SRCIN_TIMSEL3, 0x40),
+ RSND_GEN_S_REG(SRCIN_TIMSEL4, 0x44),
+ RSND_GEN_S_REG(SRCOUT_TIMSEL0, 0x48),
+ RSND_GEN_S_REG(SRCOUT_TIMSEL1, 0x4c),
+ RSND_GEN_S_REG(SRCOUT_TIMSEL2, 0x50),
+ RSND_GEN_S_REG(SRCOUT_TIMSEL3, 0x54),
+ RSND_GEN_S_REG(SRCOUT_TIMSEL4, 0x58),
+ RSND_GEN_S_REG(CMDOUT_TIMSEL, 0x5c),
+ };
+ struct rsnd_regmap_field_conf conf_ssi[] = {
+ RSND_GEN_M_REG(SSICR, 0x00, 0x40),
+ RSND_GEN_M_REG(SSISR, 0x04, 0x40),
+ RSND_GEN_M_REG(SSITDR, 0x08, 0x40),
+ RSND_GEN_M_REG(SSIRDR, 0x0c, 0x40),
+ RSND_GEN_M_REG(SSIWSR, 0x20, 0x40),
+ };
+ int ret_ssiu;
+ int ret_scu;
+ int ret_adg;
+ int ret_ssi;
+
+ ret_ssiu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSIU, "ssiu", conf_ssiu);
+ ret_scu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SCU, "scu", conf_scu);
+ ret_adg = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_ADG, "adg", conf_adg);
+ ret_ssi = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSI, "ssi", conf_ssi);
+ if (ret_ssiu < 0 ||
+ ret_scu < 0 ||
+ ret_adg < 0 ||
+ ret_ssi < 0)
+ return ret_ssiu | ret_scu | ret_adg | ret_ssi;
+
+ return 0;
+}
+
+/*
+ * Gen1
+ */
+
+static int rsnd_gen1_probe(struct platform_device *pdev,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_regmap_field_conf conf_sru[] = {
+ RSND_GEN_S_REG(SRC_ROUTE_SEL, 0x00),
+ RSND_GEN_S_REG(SRC_TMG_SEL0, 0x08),
+ RSND_GEN_S_REG(SRC_TMG_SEL1, 0x0c),
+ RSND_GEN_S_REG(SRC_TMG_SEL2, 0x10),
+ RSND_GEN_S_REG(SRC_ROUTE_CTRL, 0xc0),
+ RSND_GEN_S_REG(SSI_MODE0, 0xD0),
+ RSND_GEN_S_REG(SSI_MODE1, 0xD4),
+ RSND_GEN_M_REG(SRC_BUSIF_MODE, 0x20, 0x4),
+ RSND_GEN_M_REG(SRC_ROUTE_MODE0, 0x50, 0x8),
+ RSND_GEN_M_REG(SRC_SWRSR, 0x200, 0x40),
+ RSND_GEN_M_REG(SRC_SRCIR, 0x204, 0x40),
+ RSND_GEN_M_REG(SRC_ADINR, 0x214, 0x40),
+ RSND_GEN_M_REG(SRC_IFSCR, 0x21c, 0x40),
+ RSND_GEN_M_REG(SRC_IFSVR, 0x220, 0x40),
+ RSND_GEN_M_REG(SRC_SRCCR, 0x224, 0x40),
+ RSND_GEN_M_REG(SRC_MNFSR, 0x228, 0x40),
+ /*
+ * ADD US
+ *
+ * SRC_STATUS
+ * SRC_INT_EN
+ * SCU_SYS_STATUS0
+ * SCU_SYS_STATUS1
+ * SCU_SYS_INT_EN0
+ * SCU_SYS_INT_EN1
+ */
+ };
+ struct rsnd_regmap_field_conf conf_adg[] = {
+ RSND_GEN_S_REG(BRRA, 0x00),
+ RSND_GEN_S_REG(BRRB, 0x04),
+ RSND_GEN_S_REG(SSICKR, 0x08),
+ RSND_GEN_S_REG(AUDIO_CLK_SEL0, 0x0c),
+ RSND_GEN_S_REG(AUDIO_CLK_SEL1, 0x10),
+ RSND_GEN_S_REG(AUDIO_CLK_SEL3, 0x18),
+ RSND_GEN_S_REG(AUDIO_CLK_SEL4, 0x1c),
+ RSND_GEN_S_REG(AUDIO_CLK_SEL5, 0x20),
+ };
+ struct rsnd_regmap_field_conf conf_ssi[] = {
+ RSND_GEN_M_REG(SSICR, 0x00, 0x40),
+ RSND_GEN_M_REG(SSISR, 0x04, 0x40),
+ RSND_GEN_M_REG(SSITDR, 0x08, 0x40),
+ RSND_GEN_M_REG(SSIRDR, 0x0c, 0x40),
+ RSND_GEN_M_REG(SSIWSR, 0x20, 0x40),
+ };
+ int ret_sru;
+ int ret_adg;
+ int ret_ssi;
+
+ ret_sru = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SRU, "sru", conf_sru);
+ ret_adg = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_ADG, "adg", conf_adg);
+ ret_ssi = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SSI, "ssi", conf_ssi);
+ if (ret_sru < 0 ||
+ ret_adg < 0 ||
+ ret_ssi < 0)
+ return ret_sru | ret_adg | ret_ssi;
+
+ return 0;
+}
+
+/*
+ * Gen
+ */
+static void rsnd_of_parse_gen(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv)
+{
+ struct rcar_snd_info *info = priv->info;
+
+ if (!of_data)
+ return;
+
+ info->flags = of_data->flags;
+}
+
+int rsnd_gen_probe(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_gen *gen;
+ int ret;
+
+ rsnd_of_parse_gen(pdev, of_data, priv);
+
+ gen = devm_kzalloc(dev, sizeof(*gen), GFP_KERNEL);
+ if (!gen) {
+ dev_err(dev, "GEN allocate failed\n");
+ return -ENOMEM;
+ }
+
+ priv->gen = gen;
+
+ ret = -ENODEV;
+ if (rsnd_is_gen1(priv))
+ ret = rsnd_gen1_probe(pdev, priv);
+ else if (rsnd_is_gen2(priv))
+ ret = rsnd_gen2_probe(pdev, priv);
+
+ if (ret < 0)
+ dev_err(dev, "unknown generation R-Car sound device\n");
+
+ return ret;
+}
diff --git a/kernel/sound/soc/sh/rcar/rsnd.h b/kernel/sound/soc/sh/rcar/rsnd.h
new file mode 100644
index 000000000..4e6de6804
--- /dev/null
+++ b/kernel/sound/soc/sh/rcar/rsnd.h
@@ -0,0 +1,548 @@
+/*
+ * Renesas R-Car
+ *
+ * Copyright (C) 2013 Renesas Solutions Corp.
+ * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef RSND_H
+#define RSND_H
+
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/sh_dma.h>
+#include <linux/workqueue.h>
+#include <sound/rcar_snd.h>
+#include <sound/soc.h>
+#include <sound/pcm_params.h>
+
+/*
+ * pseudo register
+ *
+ * The register address offsets SRU/SCU/SSIU on Gen1/Gen2 are very different.
+ * This driver uses pseudo register in order to hide it.
+ * see gen1/gen2 for detail
+ */
+enum rsnd_reg {
+ /* SRU/SCU/SSIU */
+ RSND_REG_SSI_MODE0,
+ RSND_REG_SSI_MODE1,
+ RSND_REG_SRC_BUSIF_MODE,
+ RSND_REG_SRC_ROUTE_MODE0,
+ RSND_REG_SRC_SWRSR,
+ RSND_REG_SRC_SRCIR,
+ RSND_REG_SRC_ADINR,
+ RSND_REG_SRC_IFSCR,
+ RSND_REG_SRC_IFSVR,
+ RSND_REG_SRC_SRCCR,
+ RSND_REG_SCU_SYS_STATUS0,
+ RSND_REG_SCU_SYS_INT_EN0,
+ RSND_REG_CMD_ROUTE_SLCT,
+ RSND_REG_DVC_SWRSR,
+ RSND_REG_DVC_DVUIR,
+ RSND_REG_DVC_ADINR,
+ RSND_REG_DVC_DVUCR,
+ RSND_REG_DVC_ZCMCR,
+ RSND_REG_DVC_VOL0R,
+ RSND_REG_DVC_VOL1R,
+ RSND_REG_DVC_DVUER,
+
+ /* ADG */
+ RSND_REG_BRRA,
+ RSND_REG_BRRB,
+ RSND_REG_SSICKR,
+ RSND_REG_AUDIO_CLK_SEL0,
+ RSND_REG_AUDIO_CLK_SEL1,
+
+ /* SSI */
+ RSND_REG_SSICR,
+ RSND_REG_SSISR,
+ RSND_REG_SSITDR,
+ RSND_REG_SSIRDR,
+ RSND_REG_SSIWSR,
+
+ /* SHARE see below */
+ RSND_REG_SHARE01,
+ RSND_REG_SHARE02,
+ RSND_REG_SHARE03,
+ RSND_REG_SHARE04,
+ RSND_REG_SHARE05,
+ RSND_REG_SHARE06,
+ RSND_REG_SHARE07,
+ RSND_REG_SHARE08,
+ RSND_REG_SHARE09,
+ RSND_REG_SHARE10,
+ RSND_REG_SHARE11,
+ RSND_REG_SHARE12,
+ RSND_REG_SHARE13,
+ RSND_REG_SHARE14,
+ RSND_REG_SHARE15,
+ RSND_REG_SHARE16,
+ RSND_REG_SHARE17,
+ RSND_REG_SHARE18,
+ RSND_REG_SHARE19,
+ RSND_REG_SHARE20,
+ RSND_REG_SHARE21,
+ RSND_REG_SHARE22,
+ RSND_REG_SHARE23,
+ RSND_REG_SHARE24,
+ RSND_REG_SHARE25,
+ RSND_REG_SHARE26,
+ RSND_REG_SHARE27,
+ RSND_REG_SHARE28,
+
+ RSND_REG_MAX,
+};
+
+/* Gen1 only */
+#define RSND_REG_SRC_ROUTE_SEL RSND_REG_SHARE01
+#define RSND_REG_SRC_TMG_SEL0 RSND_REG_SHARE02
+#define RSND_REG_SRC_TMG_SEL1 RSND_REG_SHARE03
+#define RSND_REG_SRC_TMG_SEL2 RSND_REG_SHARE04
+#define RSND_REG_SRC_ROUTE_CTRL RSND_REG_SHARE05
+#define RSND_REG_SRC_MNFSR RSND_REG_SHARE06
+#define RSND_REG_AUDIO_CLK_SEL3 RSND_REG_SHARE07
+#define RSND_REG_AUDIO_CLK_SEL4 RSND_REG_SHARE08
+#define RSND_REG_AUDIO_CLK_SEL5 RSND_REG_SHARE09
+
+/* Gen2 only */
+#define RSND_REG_SRC_CTRL RSND_REG_SHARE01
+#define RSND_REG_SSI_CTRL RSND_REG_SHARE02
+#define RSND_REG_SSI_BUSIF_MODE RSND_REG_SHARE03
+#define RSND_REG_SSI_BUSIF_ADINR RSND_REG_SHARE04
+#define RSND_REG_INT_ENABLE RSND_REG_SHARE05
+#define RSND_REG_SRC_BSDSR RSND_REG_SHARE06
+#define RSND_REG_SRC_BSISR RSND_REG_SHARE07
+#define RSND_REG_DIV_EN RSND_REG_SHARE08
+#define RSND_REG_SRCIN_TIMSEL0 RSND_REG_SHARE09
+#define RSND_REG_SRCIN_TIMSEL1 RSND_REG_SHARE10
+#define RSND_REG_SRCIN_TIMSEL2 RSND_REG_SHARE11
+#define RSND_REG_SRCIN_TIMSEL3 RSND_REG_SHARE12
+#define RSND_REG_SRCIN_TIMSEL4 RSND_REG_SHARE13
+#define RSND_REG_SRCOUT_TIMSEL0 RSND_REG_SHARE14
+#define RSND_REG_SRCOUT_TIMSEL1 RSND_REG_SHARE15
+#define RSND_REG_SRCOUT_TIMSEL2 RSND_REG_SHARE16
+#define RSND_REG_SRCOUT_TIMSEL3 RSND_REG_SHARE17
+#define RSND_REG_SRCOUT_TIMSEL4 RSND_REG_SHARE18
+#define RSND_REG_AUDIO_CLK_SEL2 RSND_REG_SHARE19
+#define RSND_REG_CMD_CTRL RSND_REG_SHARE20
+#define RSND_REG_CMDOUT_TIMSEL RSND_REG_SHARE21
+#define RSND_REG_BUSIF_DALIGN RSND_REG_SHARE22
+#define RSND_REG_DVC_VRCTR RSND_REG_SHARE23
+#define RSND_REG_DVC_VRPDR RSND_REG_SHARE24
+#define RSND_REG_DVC_VRDBR RSND_REG_SHARE25
+#define RSND_REG_SCU_SYS_STATUS1 RSND_REG_SHARE26
+#define RSND_REG_SCU_SYS_INT_EN1 RSND_REG_SHARE27
+#define RSND_REG_SRC_INT_ENABLE0 RSND_REG_SHARE28
+
+struct rsnd_of_data;
+struct rsnd_priv;
+struct rsnd_mod;
+struct rsnd_dai;
+struct rsnd_dai_stream;
+
+/*
+ * R-Car basic functions
+ */
+#define rsnd_mod_read(m, r) \
+ rsnd_read(rsnd_mod_to_priv(m), m, RSND_REG_##r)
+#define rsnd_mod_write(m, r, d) \
+ rsnd_write(rsnd_mod_to_priv(m), m, RSND_REG_##r, d)
+#define rsnd_mod_bset(m, r, s, d) \
+ rsnd_bset(rsnd_mod_to_priv(m), m, RSND_REG_##r, s, d)
+
+u32 rsnd_read(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg);
+void rsnd_write(struct rsnd_priv *priv, struct rsnd_mod *mod,
+ enum rsnd_reg reg, u32 data);
+void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg,
+ u32 mask, u32 data);
+u32 rsnd_get_adinr(struct rsnd_mod *mod);
+
+/*
+ * R-Car DMA
+ */
+struct rsnd_dma;
+struct rsnd_dma_ops {
+ void (*start)(struct rsnd_dma *dma);
+ void (*stop)(struct rsnd_dma *dma);
+ int (*init)(struct rsnd_priv *priv, struct rsnd_dma *dma, int id,
+ struct rsnd_mod *mod_from, struct rsnd_mod *mod_to);
+ void (*quit)(struct rsnd_dma *dma);
+};
+
+struct rsnd_dmaen {
+ struct dma_chan *chan;
+};
+
+struct rsnd_dmapp {
+ int dmapp_id;
+ u32 chcr;
+};
+
+struct rsnd_dma {
+ struct rsnd_dma_ops *ops;
+ dma_addr_t src_addr;
+ dma_addr_t dst_addr;
+ union {
+ struct rsnd_dmaen en;
+ struct rsnd_dmapp pp;
+ } dma;
+};
+#define rsnd_dma_to_dmaen(dma) (&(dma)->dma.en)
+#define rsnd_dma_to_dmapp(dma) (&(dma)->dma.pp)
+
+void rsnd_dma_start(struct rsnd_dma *dma);
+void rsnd_dma_stop(struct rsnd_dma *dma);
+int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id);
+void rsnd_dma_quit(struct rsnd_dma *dma);
+int rsnd_dma_probe(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv);
+struct dma_chan *rsnd_dma_request_channel(struct device_node *of_node,
+ struct rsnd_mod *mod, char *name);
+
+#define rsnd_dma_to_mod(_dma) container_of((_dma), struct rsnd_mod, dma)
+
+/*
+ * R-Car sound mod
+ */
+enum rsnd_mod_type {
+ RSND_MOD_DVC = 0,
+ RSND_MOD_SRC,
+ RSND_MOD_SSI,
+ RSND_MOD_MAX,
+};
+
+struct rsnd_mod_ops {
+ char *name;
+ struct dma_chan* (*dma_req)(struct rsnd_mod *mod);
+ int (*probe)(struct rsnd_mod *mod,
+ struct rsnd_priv *priv);
+ int (*remove)(struct rsnd_mod *mod,
+ struct rsnd_priv *priv);
+ int (*init)(struct rsnd_mod *mod,
+ struct rsnd_priv *priv);
+ int (*quit)(struct rsnd_mod *mod,
+ struct rsnd_priv *priv);
+ int (*start)(struct rsnd_mod *mod,
+ struct rsnd_priv *priv);
+ int (*stop)(struct rsnd_mod *mod,
+ struct rsnd_priv *priv);
+ int (*pcm_new)(struct rsnd_mod *mod,
+ struct snd_soc_pcm_runtime *rtd);
+ int (*hw_params)(struct rsnd_mod *mod,
+ struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params);
+ int (*fallback)(struct rsnd_mod *mod,
+ struct rsnd_priv *priv);
+};
+
+struct rsnd_dai_stream;
+struct rsnd_mod {
+ int id;
+ enum rsnd_mod_type type;
+ struct rsnd_mod_ops *ops;
+ struct rsnd_dma dma;
+ struct rsnd_dai_stream *io;
+ struct clk *clk;
+ u32 status;
+};
+/*
+ * status
+ *
+ * bit
+ * 0 0: probe 1: remove
+ * 1 0: init 1: quit
+ * 2 0: start 1: stop
+ * 3 0: pcm_new
+ * 4 0: fallback
+ *
+ * 31 bit is always called (see __rsnd_mod_call)
+ * 31 0: hw_params
+ */
+#define __rsnd_mod_shift_probe 0
+#define __rsnd_mod_shift_remove 0
+#define __rsnd_mod_shift_init 1
+#define __rsnd_mod_shift_quit 1
+#define __rsnd_mod_shift_start 2
+#define __rsnd_mod_shift_stop 2
+#define __rsnd_mod_shift_pcm_new 3
+#define __rsnd_mod_shift_fallback 4
+#define __rsnd_mod_shift_hw_params 31 /* always called */
+
+#define __rsnd_mod_call_probe 0
+#define __rsnd_mod_call_remove 1
+#define __rsnd_mod_call_init 0
+#define __rsnd_mod_call_quit 1
+#define __rsnd_mod_call_start 0
+#define __rsnd_mod_call_stop 1
+#define __rsnd_mod_call_pcm_new 0
+#define __rsnd_mod_call_fallback 0
+#define __rsnd_mod_call_hw_params 0
+
+#define rsnd_mod_to_priv(mod) (rsnd_io_to_priv(rsnd_mod_to_io(mod)))
+#define rsnd_mod_to_dma(mod) (&(mod)->dma)
+#define rsnd_mod_to_io(mod) ((mod)->io)
+#define rsnd_mod_id(mod) ((mod)->id)
+#define rsnd_mod_hw_start(mod) clk_enable((mod)->clk)
+#define rsnd_mod_hw_stop(mod) clk_disable((mod)->clk)
+
+int rsnd_mod_init(struct rsnd_mod *mod,
+ struct rsnd_mod_ops *ops,
+ struct clk *clk,
+ enum rsnd_mod_type type,
+ int id);
+void rsnd_mod_quit(struct rsnd_mod *mod);
+char *rsnd_mod_name(struct rsnd_mod *mod);
+struct dma_chan *rsnd_mod_dma_req(struct rsnd_mod *mod);
+
+/*
+ * R-Car sound DAI
+ */
+#define RSND_DAI_NAME_SIZE 16
+struct rsnd_dai_stream {
+ char name[RSND_DAI_NAME_SIZE];
+ struct snd_pcm_substream *substream;
+ struct rsnd_mod *mod[RSND_MOD_MAX];
+ struct rsnd_dai_path_info *info; /* rcar_snd.h */
+ struct rsnd_dai *rdai;
+ int byte_pos;
+ int period_pos;
+ int byte_per_period;
+ int next_period_byte;
+};
+#define rsnd_io_to_mod_ssi(io) ((io)->mod[RSND_MOD_SSI])
+#define rsnd_io_to_mod_src(io) ((io)->mod[RSND_MOD_SRC])
+#define rsnd_io_to_mod_dvc(io) ((io)->mod[RSND_MOD_DVC])
+#define rsnd_io_to_rdai(io) ((io)->rdai)
+#define rsnd_io_to_priv(io) (rsnd_rdai_to_priv(rsnd_io_to_rdai(io)))
+#define rsnd_io_is_play(io) (&rsnd_io_to_rdai(io)->playback == io)
+#define rsnd_io_to_runtime(io) ((io)->substream ? \
+ (io)->substream->runtime : NULL)
+
+
+struct rsnd_dai {
+ char name[RSND_DAI_NAME_SIZE];
+ struct rsnd_dai_stream playback;
+ struct rsnd_dai_stream capture;
+ struct rsnd_priv *priv;
+
+ unsigned int clk_master:1;
+ unsigned int bit_clk_inv:1;
+ unsigned int frm_clk_inv:1;
+ unsigned int sys_delay:1;
+ unsigned int data_alignment:1;
+};
+
+#define rsnd_rdai_nr(priv) ((priv)->rdai_nr)
+#define rsnd_rdai_is_clk_master(rdai) ((rdai)->clk_master)
+#define rsnd_rdai_to_priv(rdai) ((rdai)->priv)
+#define for_each_rsnd_dai(rdai, priv, i) \
+ for (i = 0; \
+ (i < rsnd_rdai_nr(priv)) && \
+ ((rdai) = rsnd_rdai_get(priv, i)); \
+ i++)
+
+struct rsnd_dai *rsnd_rdai_get(struct rsnd_priv *priv, int id);
+
+void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int cnt);
+int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional);
+
+/*
+ * R-Car Gen1/Gen2
+ */
+int rsnd_gen_probe(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv);
+void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv,
+ struct rsnd_mod *mod,
+ enum rsnd_reg reg);
+phys_addr_t rsnd_gen_get_phy_addr(struct rsnd_priv *priv, int reg_id);
+
+#define rsnd_is_gen1(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN1)
+#define rsnd_is_gen2(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN2)
+
+/*
+ * R-Car ADG
+ */
+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 platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv);
+int rsnd_adg_set_convert_clk_gen1(struct rsnd_priv *priv,
+ struct rsnd_mod *mod,
+ unsigned int src_rate,
+ unsigned int dst_rate);
+int rsnd_adg_set_convert_clk_gen2(struct rsnd_mod *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);
+int rsnd_adg_set_cmd_timsel_gen2(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io);
+
+/*
+ * R-Car sound priv
+ */
+struct rsnd_of_data {
+ u32 flags;
+};
+
+struct rsnd_priv {
+
+ struct platform_device *pdev;
+ struct rcar_snd_info *info;
+ spinlock_t lock;
+
+ /*
+ * below value will be filled on rsnd_gen_probe()
+ */
+ void *gen;
+
+ /*
+ * below value will be filled on rsnd_src_probe()
+ */
+ void *src;
+ int src_nr;
+
+ /*
+ * below value will be filled on rsnd_adg_probe()
+ */
+ void *adg;
+
+ /*
+ * below value will be filled on rsnd_dma_probe()
+ */
+ void *dma;
+
+ /*
+ * below value will be filled on rsnd_ssi_probe()
+ */
+ void *ssi;
+ int ssi_nr;
+
+ /*
+ * below value will be filled on rsnd_dvc_probe()
+ */
+ void *dvc;
+ int dvc_nr;
+
+ /*
+ * below value will be filled on rsnd_dai_probe()
+ */
+ struct snd_soc_dai_driver *daidrv;
+ struct rsnd_dai *rdai;
+ int rdai_nr;
+};
+
+#define rsnd_priv_to_pdev(priv) ((priv)->pdev)
+#define rsnd_priv_to_dev(priv) (&(rsnd_priv_to_pdev(priv)->dev))
+#define rsnd_priv_to_info(priv) ((priv)->info)
+#define rsnd_lock(priv, flags) spin_lock_irqsave(&priv->lock, flags)
+#define rsnd_unlock(priv, flags) spin_unlock_irqrestore(&priv->lock, flags)
+
+/*
+ * rsnd_kctrl
+ */
+struct rsnd_kctrl_cfg {
+ unsigned int max;
+ unsigned int size;
+ u32 *val;
+ const char * const *texts;
+ void (*update)(struct rsnd_mod *mod);
+ struct snd_card *card;
+ struct snd_kcontrol *kctrl;
+};
+
+#define RSND_DVC_CHANNELS 2
+struct rsnd_kctrl_cfg_m {
+ struct rsnd_kctrl_cfg cfg;
+ u32 val[RSND_DVC_CHANNELS];
+};
+
+struct rsnd_kctrl_cfg_s {
+ struct rsnd_kctrl_cfg cfg;
+ u32 val;
+};
+
+void _rsnd_kctrl_remove(struct rsnd_kctrl_cfg *cfg);
+#define rsnd_kctrl_remove(_cfg) _rsnd_kctrl_remove(&((_cfg).cfg))
+
+int rsnd_kctrl_new_m(struct rsnd_mod *mod,
+ struct snd_soc_pcm_runtime *rtd,
+ const unsigned char *name,
+ void (*update)(struct rsnd_mod *mod),
+ struct rsnd_kctrl_cfg_m *_cfg,
+ u32 max);
+int rsnd_kctrl_new_s(struct rsnd_mod *mod,
+ struct snd_soc_pcm_runtime *rtd,
+ const unsigned char *name,
+ void (*update)(struct rsnd_mod *mod),
+ struct rsnd_kctrl_cfg_s *_cfg,
+ u32 max);
+int rsnd_kctrl_new_e(struct rsnd_mod *mod,
+ struct snd_soc_pcm_runtime *rtd,
+ const unsigned char *name,
+ struct rsnd_kctrl_cfg_s *_cfg,
+ void (*update)(struct rsnd_mod *mod),
+ const char * const *texts,
+ u32 max);
+
+/*
+ * R-Car SRC
+ */
+int rsnd_src_probe(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv);
+void rsnd_src_remove(struct platform_device *pdev,
+ struct rsnd_priv *priv);
+struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id);
+unsigned int rsnd_src_get_ssi_rate(struct rsnd_priv *priv,
+ struct rsnd_dai_stream *io,
+ struct snd_pcm_runtime *runtime);
+int rsnd_src_ssiu_start(struct rsnd_mod *ssi_mod,
+ int use_busif);
+int rsnd_src_ssiu_stop(struct rsnd_mod *ssi_mod);
+int rsnd_src_ssi_irq_enable(struct rsnd_mod *ssi_mod);
+int rsnd_src_ssi_irq_disable(struct rsnd_mod *ssi_mod);
+
+#define rsnd_src_nr(priv) ((priv)->src_nr)
+
+/*
+ * R-Car SSI
+ */
+int rsnd_ssi_probe(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv);
+void rsnd_ssi_remove(struct platform_device *pdev,
+ struct rsnd_priv *priv);
+struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id);
+int rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod);
+int rsnd_ssi_is_dma_mode(struct rsnd_mod *mod);
+int rsnd_ssi_use_busif(struct rsnd_mod *mod);
+
+/*
+ * R-Car DVC
+ */
+int rsnd_dvc_probe(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv);
+void rsnd_dvc_remove(struct platform_device *pdev,
+ struct rsnd_priv *priv);
+struct rsnd_mod *rsnd_dvc_mod_get(struct rsnd_priv *priv, int id);
+
+#define rsnd_dvc_nr(priv) ((priv)->dvc_nr)
+
+
+#endif
diff --git a/kernel/sound/soc/sh/rcar/rsrc-card.c b/kernel/sound/soc/sh/rcar/rsrc-card.c
new file mode 100644
index 000000000..a68517afe
--- /dev/null
+++ b/kernel/sound/soc/sh/rcar/rsrc-card.c
@@ -0,0 +1,512 @@
+/*
+ * Renesas Sampling Rate Convert Sound Card for DPCM
+ *
+ * Copyright (C) 2015 Renesas Solutions Corp.
+ * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ *
+ * based on ${LINUX}/sound/soc/generic/simple-card.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/string.h>
+#include <sound/jack.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+
+struct rsrc_card_of_data {
+ const char *prefix;
+ const struct snd_soc_dapm_route *routes;
+ int num_routes;
+};
+
+static const struct snd_soc_dapm_route routes_ssi0_ak4642[] = {
+ {"ak4642 Playback", NULL, "DAI0 Playback"},
+ {"DAI0 Capture", NULL, "ak4642 Capture"},
+};
+
+static const struct rsrc_card_of_data routes_of_ssi0_ak4642 = {
+ .prefix = "ak4642",
+ .routes = routes_ssi0_ak4642,
+ .num_routes = ARRAY_SIZE(routes_ssi0_ak4642),
+};
+
+static const struct of_device_id rsrc_card_of_match[] = {
+ { .compatible = "renesas,rsrc-card,lager", .data = &routes_of_ssi0_ak4642 },
+ { .compatible = "renesas,rsrc-card,koelsch", .data = &routes_of_ssi0_ak4642 },
+ {},
+};
+MODULE_DEVICE_TABLE(of, rsrc_card_of_match);
+
+struct rsrc_card_dai {
+ const char *name;
+ unsigned int fmt;
+ unsigned int sysclk;
+ struct clk *clk;
+};
+
+#define RSRC_FB_NUM 2 /* FE/BE */
+#define IDX_CPU 0
+#define IDX_CODEC 1
+struct rsrc_card_priv {
+ struct snd_soc_card snd_card;
+ struct rsrc_card_dai_props {
+ struct rsrc_card_dai cpu_dai;
+ struct rsrc_card_dai codec_dai;
+ } dai_props[RSRC_FB_NUM];
+ struct snd_soc_codec_conf codec_conf;
+ struct snd_soc_dai_link dai_link[RSRC_FB_NUM];
+ u32 convert_rate;
+};
+
+#define rsrc_priv_to_dev(priv) ((priv)->snd_card.dev)
+#define rsrc_priv_to_link(priv, i) ((priv)->snd_card.dai_link + i)
+#define rsrc_priv_to_props(priv, i) ((priv)->dai_props + i)
+#define rsrc_dev_to_of_data(dev) (of_match_device(rsrc_card_of_match, (dev))->data)
+
+static int rsrc_card_startup(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct rsrc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+ struct rsrc_card_dai_props *dai_props =
+ &priv->dai_props[rtd - rtd->card->rtd];
+ int ret;
+
+ ret = clk_prepare_enable(dai_props->cpu_dai.clk);
+ if (ret)
+ return ret;
+
+ ret = clk_prepare_enable(dai_props->codec_dai.clk);
+ if (ret)
+ clk_disable_unprepare(dai_props->cpu_dai.clk);
+
+ return ret;
+}
+
+static void rsrc_card_shutdown(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct rsrc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+ struct rsrc_card_dai_props *dai_props =
+ &priv->dai_props[rtd - rtd->card->rtd];
+
+ clk_disable_unprepare(dai_props->cpu_dai.clk);
+
+ clk_disable_unprepare(dai_props->codec_dai.clk);
+}
+
+static struct snd_soc_ops rsrc_card_ops = {
+ .startup = rsrc_card_startup,
+ .shutdown = rsrc_card_shutdown,
+};
+
+static int __rsrc_card_dai_init(struct snd_soc_dai *dai,
+ struct rsrc_card_dai *set)
+{
+ int ret;
+
+ if (set->fmt) {
+ ret = snd_soc_dai_set_fmt(dai, set->fmt);
+ if (ret && ret != -ENOTSUPP) {
+ dev_err(dai->dev, "set_fmt error\n");
+ goto err;
+ }
+ }
+
+ if (set->sysclk) {
+ ret = snd_soc_dai_set_sysclk(dai, 0, set->sysclk, 0);
+ if (ret && ret != -ENOTSUPP) {
+ dev_err(dai->dev, "set_sysclk error\n");
+ goto err;
+ }
+ }
+
+ ret = 0;
+
+err:
+ return ret;
+}
+
+static int rsrc_card_dai_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct rsrc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+ struct snd_soc_dai *codec = rtd->codec_dai;
+ struct snd_soc_dai *cpu = rtd->cpu_dai;
+ struct rsrc_card_dai_props *dai_props;
+ int num, ret;
+
+ num = rtd - rtd->card->rtd;
+ dai_props = &priv->dai_props[num];
+ ret = __rsrc_card_dai_init(codec, &dai_props->codec_dai);
+ if (ret < 0)
+ return ret;
+
+ ret = __rsrc_card_dai_init(cpu, &dai_props->cpu_dai);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int rsrc_card_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
+ struct snd_pcm_hw_params *params)
+{
+ struct rsrc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+ struct snd_interval *rate = hw_param_interval(params,
+ SNDRV_PCM_HW_PARAM_RATE);
+
+ if (!priv->convert_rate)
+ return 0;
+
+ rate->min = rate->max = priv->convert_rate;
+
+ return 0;
+}
+
+static int
+rsrc_card_sub_parse_of(struct rsrc_card_priv *priv,
+ struct device_node *np,
+ struct rsrc_card_dai *dai,
+ struct snd_soc_dai_link *dai_link,
+ int *args_count)
+{
+ struct device *dev = rsrc_priv_to_dev(priv);
+ const struct rsrc_card_of_data *of_data = rsrc_dev_to_of_data(dev);
+ struct of_phandle_args args;
+ struct device_node **p_node;
+ struct clk *clk;
+ const char **dai_name;
+ const char **name;
+ u32 val;
+ int ret;
+
+ if (args_count) {
+ p_node = &dai_link->cpu_of_node;
+ dai_name = &dai_link->cpu_dai_name;
+ name = &dai_link->cpu_name;
+ } else {
+ p_node = &dai_link->codec_of_node;
+ dai_name = &dai_link->codec_dai_name;
+ name = &dai_link->codec_name;
+ }
+
+ if (!np) {
+ /* use snd-soc-dummy */
+ *p_node = NULL;
+ *dai_name = "snd-soc-dummy-dai";
+ *name = "snd-soc-dummy";
+ return 0;
+ }
+
+ /*
+ * Get node via "sound-dai = <&phandle port>"
+ * it will be used as xxx_of_node on soc_bind_dai_link()
+ */
+ ret = of_parse_phandle_with_args(np, "sound-dai",
+ "#sound-dai-cells", 0, &args);
+ if (ret)
+ return ret;
+
+ *p_node = args.np;
+
+ /* Get dai->name */
+ ret = snd_soc_of_get_dai_name(np, dai_name);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * FIXME
+ *
+ * rsrc assumes DPCM playback/capture
+ */
+ dai_link->dpcm_playback = 1;
+ dai_link->dpcm_capture = 1;
+
+ if (args_count) {
+ *args_count = args.args_count;
+ dai_link->dynamic = 1;
+ } else {
+ dai_link->no_pcm = 1;
+ priv->codec_conf.of_node = (*p_node);
+ priv->codec_conf.name_prefix = of_data->prefix;
+ }
+
+ /*
+ * Parse dai->sysclk come from "clocks = <&xxx>"
+ * (if system has common clock)
+ * or "system-clock-frequency = <xxx>"
+ * or device's module clock.
+ */
+ if (of_property_read_bool(np, "clocks")) {
+ clk = of_clk_get(np, 0);
+ if (IS_ERR(clk)) {
+ ret = PTR_ERR(clk);
+ return ret;
+ }
+
+ dai->sysclk = clk_get_rate(clk);
+ dai->clk = clk;
+ } else if (!of_property_read_u32(np, "system-clock-frequency", &val)) {
+ dai->sysclk = val;
+ } else {
+ clk = of_clk_get(args.np, 0);
+ if (!IS_ERR(clk))
+ dai->sysclk = clk_get_rate(clk);
+ }
+
+ return 0;
+}
+
+static int rsrc_card_parse_daifmt(struct device_node *node,
+ struct rsrc_card_priv *priv,
+ struct device_node *codec,
+ int idx)
+{
+ struct device_node *bitclkmaster = NULL;
+ struct device_node *framemaster = NULL;
+ struct rsrc_card_dai_props *dai_props = rsrc_priv_to_props(priv, idx);
+ struct rsrc_card_dai *cpu_dai = &dai_props->cpu_dai;
+ struct rsrc_card_dai *codec_dai = &dai_props->codec_dai;
+ unsigned int daifmt;
+
+ daifmt = snd_soc_of_parse_daifmt(node, NULL,
+ &bitclkmaster, &framemaster);
+ daifmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
+
+ if (!bitclkmaster && !framemaster)
+ return -EINVAL;
+
+ if (codec == bitclkmaster)
+ daifmt |= (codec == framemaster) ?
+ SND_SOC_DAIFMT_CBM_CFM : SND_SOC_DAIFMT_CBM_CFS;
+ else
+ daifmt |= (codec == framemaster) ?
+ SND_SOC_DAIFMT_CBS_CFM : SND_SOC_DAIFMT_CBS_CFS;
+
+ cpu_dai->fmt = daifmt;
+ codec_dai->fmt = daifmt;
+
+ of_node_put(bitclkmaster);
+ of_node_put(framemaster);
+
+ return 0;
+}
+
+static int rsrc_card_dai_link_of(struct device_node *node,
+ struct rsrc_card_priv *priv,
+ int idx)
+{
+ struct device *dev = rsrc_priv_to_dev(priv);
+ struct snd_soc_dai_link *dai_link = rsrc_priv_to_link(priv, idx);
+ struct rsrc_card_dai_props *dai_props = rsrc_priv_to_props(priv, idx);
+ struct device_node *cpu = NULL;
+ struct device_node *codec = NULL;
+ char *name;
+ char prop[128];
+ int ret, cpu_args;
+
+ cpu = of_get_child_by_name(node, "cpu");
+ codec = of_get_child_by_name(node, "codec");
+
+ if (!cpu || !codec) {
+ ret = -EINVAL;
+ dev_err(dev, "%s: Can't find %s DT node\n", __func__, prop);
+ goto dai_link_of_err;
+ }
+
+ ret = rsrc_card_parse_daifmt(node, priv, codec, idx);
+ if (ret < 0)
+ goto dai_link_of_err;
+
+ ret = rsrc_card_sub_parse_of(priv, (idx == IDX_CPU) ? cpu : NULL,
+ &dai_props->cpu_dai,
+ dai_link,
+ &cpu_args);
+ if (ret < 0)
+ goto dai_link_of_err;
+
+ ret = rsrc_card_sub_parse_of(priv, (idx == IDX_CODEC) ? codec : NULL,
+ &dai_props->codec_dai,
+ dai_link,
+ NULL);
+ if (ret < 0)
+ goto dai_link_of_err;
+
+ if (!dai_link->cpu_dai_name || !dai_link->codec_dai_name) {
+ ret = -EINVAL;
+ goto dai_link_of_err;
+ }
+
+ /* Simple Card assumes platform == cpu */
+ dai_link->platform_of_node = dai_link->cpu_of_node;
+
+ /* DAI link name is created from CPU/CODEC dai name */
+ name = devm_kzalloc(dev,
+ strlen(dai_link->cpu_dai_name) +
+ strlen(dai_link->codec_dai_name) + 2,
+ GFP_KERNEL);
+ if (!name) {
+ ret = -ENOMEM;
+ goto dai_link_of_err;
+ }
+
+ sprintf(name, "%s-%s", dai_link->cpu_dai_name,
+ dai_link->codec_dai_name);
+ dai_link->name = dai_link->stream_name = name;
+ dai_link->ops = &rsrc_card_ops;
+ dai_link->init = rsrc_card_dai_init;
+
+ if (idx == IDX_CODEC)
+ dai_link->be_hw_params_fixup = rsrc_card_be_hw_params_fixup;
+
+ dev_dbg(dev, "\tname : %s\n", dai_link->stream_name);
+ dev_dbg(dev, "\tcpu : %s / %04x / %d\n",
+ dai_link->cpu_dai_name,
+ dai_props->cpu_dai.fmt,
+ dai_props->cpu_dai.sysclk);
+ dev_dbg(dev, "\tcodec : %s / %04x / %d\n",
+ dai_link->codec_dai_name,
+ dai_props->codec_dai.fmt,
+ dai_props->codec_dai.sysclk);
+
+ /*
+ * In soc_bind_dai_link() will check cpu name after
+ * of_node matching if dai_link has cpu_dai_name.
+ * but, it will never match if name was created by
+ * fmt_single_name() remove cpu_dai_name if cpu_args
+ * was 0. See:
+ * fmt_single_name()
+ * fmt_multiple_name()
+ */
+ if (!cpu_args)
+ dai_link->cpu_dai_name = NULL;
+
+dai_link_of_err:
+ of_node_put(cpu);
+ of_node_put(codec);
+
+ return ret;
+}
+
+static int rsrc_card_parse_of(struct device_node *node,
+ struct rsrc_card_priv *priv)
+{
+ struct device *dev = rsrc_priv_to_dev(priv);
+ const struct rsrc_card_of_data *of_data = rsrc_dev_to_of_data(dev);
+ int ret;
+ int i;
+
+ if (!node)
+ return -EINVAL;
+
+ /* Parse the card name from DT */
+ snd_soc_of_parse_card_name(&priv->snd_card, "card-name");
+
+ /* DAPM routes */
+ priv->snd_card.of_dapm_routes = of_data->routes;
+ priv->snd_card.num_of_dapm_routes = of_data->num_routes;
+
+ /* sampling rate convert */
+ of_property_read_u32(node, "convert-rate", &priv->convert_rate);
+
+ dev_dbg(dev, "New rsrc-audio-card: %s (%d)\n",
+ priv->snd_card.name ? priv->snd_card.name : "",
+ priv->convert_rate);
+
+ /* FE/BE */
+ for (i = 0; i < RSRC_FB_NUM; i++) {
+ ret = rsrc_card_dai_link_of(node, priv, i);
+ if (ret < 0)
+ return ret;
+ }
+
+ if (!priv->snd_card.name)
+ priv->snd_card.name = priv->snd_card.dai_link->name;
+
+ return 0;
+}
+
+/* Decrease the reference count of the device nodes */
+static int rsrc_card_unref(struct snd_soc_card *card)
+{
+ struct snd_soc_dai_link *dai_link;
+ int num_links;
+
+ for (num_links = 0, dai_link = card->dai_link;
+ num_links < card->num_links;
+ num_links++, dai_link++) {
+ of_node_put(dai_link->cpu_of_node);
+ of_node_put(dai_link->codec_of_node);
+ }
+ return 0;
+}
+
+static int rsrc_card_probe(struct platform_device *pdev)
+{
+ struct rsrc_card_priv *priv;
+ struct snd_soc_dai_link *dai_link;
+ struct device_node *np = pdev->dev.of_node;
+ struct device *dev = &pdev->dev;
+ int ret;
+
+ /* Allocate the private data */
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ /* Init snd_soc_card */
+ priv->snd_card.owner = THIS_MODULE;
+ priv->snd_card.dev = dev;
+ dai_link = priv->dai_link;
+ priv->snd_card.dai_link = dai_link;
+ priv->snd_card.num_links = RSRC_FB_NUM;
+ priv->snd_card.codec_conf = &priv->codec_conf;
+ priv->snd_card.num_configs = 1;
+
+ ret = rsrc_card_parse_of(np, priv);
+ if (ret < 0) {
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "parse error %d\n", ret);
+ goto err;
+ }
+
+ snd_soc_card_set_drvdata(&priv->snd_card, priv);
+
+ ret = devm_snd_soc_register_card(&pdev->dev, &priv->snd_card);
+ if (ret >= 0)
+ return ret;
+err:
+ rsrc_card_unref(&priv->snd_card);
+
+ return ret;
+}
+
+static int rsrc_card_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+ return rsrc_card_unref(card);
+}
+
+static struct platform_driver rsrc_card = {
+ .driver = {
+ .name = "renesas-src-audio-card",
+ .of_match_table = rsrc_card_of_match,
+ },
+ .probe = rsrc_card_probe,
+ .remove = rsrc_card_remove,
+};
+
+module_platform_driver(rsrc_card);
+
+MODULE_ALIAS("platform:renesas-src-audio-card");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Renesas Sampling Rate Convert Sound Card");
+MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
diff --git a/kernel/sound/soc/sh/rcar/src.c b/kernel/sound/soc/sh/rcar/src.c
new file mode 100644
index 000000000..3beb32eb4
--- /dev/null
+++ b/kernel/sound/soc/sh/rcar/src.c
@@ -0,0 +1,1061 @@
+/*
+ * Renesas R-Car SRC support
+ *
+ * Copyright (C) 2013 Renesas Solutions Corp.
+ * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include "rsnd.h"
+
+#define SRC_NAME "src"
+
+/* SRCx_STATUS */
+#define OUF_SRCO ((1 << 12) | (1 << 13))
+#define OUF_SRCI ((1 << 9) | (1 << 8))
+
+/* SCU_SYSTEM_STATUS0/1 */
+#define OUF_SRC(id) ((1 << (id + 16)) | (1 << id))
+
+struct rsnd_src {
+ struct rsnd_src_platform_info *info; /* rcar_snd.h */
+ struct rsnd_mod mod;
+ struct rsnd_kctrl_cfg_s sen; /* sync convert enable */
+ struct rsnd_kctrl_cfg_s sync; /* sync convert */
+ u32 convert_rate; /* sampling rate convert */
+ int err;
+};
+
+#define RSND_SRC_NAME_SIZE 16
+
+#define rsnd_enable_sync_convert(src) ((src)->sen.val)
+#define rsnd_src_of_node(priv) \
+ of_get_child_by_name(rsnd_priv_to_dev(priv)->of_node, "rcar_sound,src")
+
+#define rsnd_mod_to_src(_mod) \
+ container_of((_mod), struct rsnd_src, mod)
+
+#define for_each_rsnd_src(pos, priv, i) \
+ for ((i) = 0; \
+ ((i) < rsnd_src_nr(priv)) && \
+ ((pos) = (struct rsnd_src *)(priv)->src + i); \
+ i++)
+
+
+/*
+ * image of SRC (Sampling Rate Converter)
+ *
+ * 96kHz <-> +-----+ 48kHz +-----+ 48kHz +-------+
+ * 48kHz <-> | SRC | <------> | SSI | <-----> | codec |
+ * 44.1kHz <-> +-----+ +-----+ +-------+
+ * ...
+ *
+ */
+
+/*
+ * src.c is caring...
+ *
+ * Gen1
+ *
+ * [mem] -> [SRU] -> [SSI]
+ * |--------|
+ *
+ * Gen2
+ *
+ * [mem] -> [SRC] -> [SSIU] -> [SSI]
+ * |-----------------|
+ */
+
+/*
+ * How to use SRC bypass mode for debugging
+ *
+ * SRC has bypass mode, and it is useful for debugging.
+ * In Gen2 case,
+ * SRCm_MODE controls whether SRC is used or not
+ * SSI_MODE0 controls whether SSIU which receives SRC data
+ * is used or not.
+ * Both SRCm_MODE/SSI_MODE0 settings are needed if you use SRC,
+ * but SRC bypass mode needs SSI_MODE0 only.
+ *
+ * This driver request
+ * struct rsnd_src_platform_info {
+ * u32 convert_rate;
+ * int dma_id;
+ * }
+ *
+ * rsnd_src_convert_rate() indicates
+ * above convert_rate, and it controls
+ * whether SRC is used or not.
+ *
+ * ex) doesn't use SRC
+ * static struct rsnd_dai_platform_info rsnd_dai = {
+ * .playback = { .ssi = &rsnd_ssi[0], },
+ * };
+ *
+ * ex) uses SRC
+ * static struct rsnd_src_platform_info rsnd_src[] = {
+ * RSND_SCU(48000, 0),
+ * ...
+ * };
+ * static struct rsnd_dai_platform_info rsnd_dai = {
+ * .playback = { .ssi = &rsnd_ssi[0], .src = &rsnd_src[0] },
+ * };
+ *
+ * ex) uses SRC bypass mode
+ * static struct rsnd_src_platform_info rsnd_src[] = {
+ * RSND_SCU(0, 0),
+ * ...
+ * };
+ * static struct rsnd_dai_platform_info rsnd_dai = {
+ * .playback = { .ssi = &rsnd_ssi[0], .src = &rsnd_src[0] },
+ * };
+ *
+ */
+
+/*
+ * Gen1/Gen2 common functions
+ */
+static struct dma_chan *rsnd_src_dma_req(struct rsnd_mod *mod)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ int is_play = rsnd_io_is_play(io);
+
+ return rsnd_dma_request_channel(rsnd_src_of_node(priv),
+ mod,
+ is_play ? "rx" : "tx");
+}
+
+int rsnd_src_ssiu_start(struct rsnd_mod *ssi_mod,
+ int use_busif)
+{
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(ssi_mod);
+ struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ int ssi_id = rsnd_mod_id(ssi_mod);
+
+ /*
+ * SSI_MODE0
+ */
+ rsnd_mod_bset(ssi_mod, SSI_MODE0, (1 << ssi_id),
+ !use_busif << ssi_id);
+
+ /*
+ * SSI_MODE1
+ */
+ if (rsnd_ssi_is_pin_sharing(ssi_mod)) {
+ int shift = -1;
+ switch (ssi_id) {
+ case 1:
+ shift = 0;
+ break;
+ case 2:
+ shift = 2;
+ break;
+ case 4:
+ shift = 16;
+ break;
+ }
+
+ if (shift >= 0)
+ rsnd_mod_bset(ssi_mod, SSI_MODE1,
+ 0x3 << shift,
+ rsnd_rdai_is_clk_master(rdai) ?
+ 0x2 << shift : 0x1 << shift);
+ }
+
+ /*
+ * DMA settings for SSIU
+ */
+ if (use_busif) {
+ u32 val = 0x76543210;
+ u32 mask = ~0;
+
+ rsnd_mod_write(ssi_mod, SSI_BUSIF_ADINR,
+ rsnd_get_adinr(ssi_mod));
+ rsnd_mod_write(ssi_mod, SSI_BUSIF_MODE, 1);
+ rsnd_mod_write(ssi_mod, SSI_CTRL, 0x1);
+
+ mask <<= runtime->channels * 4;
+ val = val & mask;
+
+ switch (runtime->sample_bits) {
+ case 16:
+ val |= 0x67452301 & ~mask;
+ break;
+ case 32:
+ val |= 0x76543210 & ~mask;
+ break;
+ }
+ rsnd_mod_write(ssi_mod, BUSIF_DALIGN, val);
+
+ }
+
+ return 0;
+}
+
+int rsnd_src_ssiu_stop(struct rsnd_mod *ssi_mod)
+{
+ /*
+ * DMA settings for SSIU
+ */
+ rsnd_mod_write(ssi_mod, SSI_CTRL, 0);
+
+ return 0;
+}
+
+int rsnd_src_ssi_irq_enable(struct rsnd_mod *ssi_mod)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(ssi_mod);
+
+ if (rsnd_is_gen1(priv))
+ return 0;
+
+ /* enable SSI interrupt if Gen2 */
+ if (rsnd_ssi_is_dma_mode(ssi_mod))
+ rsnd_mod_write(ssi_mod, INT_ENABLE, 0x0e000000);
+ else
+ rsnd_mod_write(ssi_mod, INT_ENABLE, 0x0f000000);
+
+ return 0;
+}
+
+int rsnd_src_ssi_irq_disable(struct rsnd_mod *ssi_mod)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(ssi_mod);
+
+ if (rsnd_is_gen1(priv))
+ return 0;
+
+ /* disable SSI interrupt if Gen2 */
+ rsnd_mod_write(ssi_mod, INT_ENABLE, 0x00000000);
+
+ return 0;
+}
+
+static u32 rsnd_src_convert_rate(struct rsnd_src *src)
+{
+ struct rsnd_mod *mod = &src->mod;
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ u32 convert_rate;
+
+ if (!runtime)
+ return 0;
+
+ if (!rsnd_enable_sync_convert(src))
+ return src->convert_rate;
+
+ convert_rate = src->sync.val;
+
+ if (!convert_rate)
+ convert_rate = src->convert_rate;
+
+ if (!convert_rate)
+ convert_rate = runtime->rate;
+
+ return convert_rate;
+}
+
+unsigned int rsnd_src_get_ssi_rate(struct rsnd_priv *priv,
+ struct rsnd_dai_stream *io,
+ struct snd_pcm_runtime *runtime)
+{
+ struct rsnd_mod *src_mod = rsnd_io_to_mod_src(io);
+ struct rsnd_src *src;
+ unsigned int rate = 0;
+
+ if (src_mod) {
+ src = rsnd_mod_to_src(src_mod);
+
+ /*
+ * return convert rate if SRC is used,
+ * otherwise, return runtime->rate as usual
+ */
+ rate = rsnd_src_convert_rate(src);
+ }
+
+ if (!rate)
+ rate = runtime->rate;
+
+ return rate;
+}
+
+static int rsnd_src_set_convert_rate(struct rsnd_mod *mod)
+{
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+ u32 convert_rate = rsnd_src_convert_rate(src);
+ u32 fsrate = 0;
+
+ if (convert_rate)
+ fsrate = 0x0400000 / convert_rate * runtime->rate;
+
+ /* set/clear soft reset */
+ rsnd_mod_write(mod, SRC_SWRSR, 0);
+ rsnd_mod_write(mod, SRC_SWRSR, 1);
+
+ /* Set channel number and output bit length */
+ rsnd_mod_write(mod, SRC_ADINR, rsnd_get_adinr(mod));
+
+ /* Enable the initial value of IFS */
+ if (fsrate) {
+ rsnd_mod_write(mod, SRC_IFSCR, 1);
+
+ /* Set initial value of IFS */
+ rsnd_mod_write(mod, SRC_IFSVR, fsrate);
+ }
+
+ /* use DMA transfer */
+ rsnd_mod_write(mod, SRC_BUSIF_MODE, 1);
+
+ return 0;
+}
+
+static int rsnd_src_hw_params(struct rsnd_mod *mod,
+ struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *fe_params)
+{
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+ struct snd_soc_pcm_runtime *fe = substream->private_data;
+
+ /* default value (mainly for non-DT) */
+ src->convert_rate = src->info->convert_rate;
+
+ /*
+ * SRC assumes that it is used under DPCM if user want to use
+ * sampling rate convert. Then, SRC should be FE.
+ * And then, this function will be called *after* BE settings.
+ * this means, each BE already has fixuped hw_params.
+ * see
+ * dpcm_fe_dai_hw_params()
+ * dpcm_be_dai_hw_params()
+ */
+ if (fe->dai_link->dynamic) {
+ int stream = substream->stream;
+ struct snd_soc_dpcm *dpcm;
+ struct snd_pcm_hw_params *be_params;
+
+ list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) {
+ be_params = &dpcm->hw_params;
+
+ if (params_rate(fe_params) != params_rate(be_params))
+ src->convert_rate = params_rate(be_params);
+ }
+ }
+
+ return 0;
+}
+
+static int rsnd_src_init(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+
+ rsnd_mod_hw_start(mod);
+
+ src->err = 0;
+
+ /* reset sync convert_rate */
+ src->sync.val = 0;
+
+ /*
+ * Initialize the operation of the SRC internal circuits
+ * see rsnd_src_start()
+ */
+ rsnd_mod_write(mod, SRC_SRCIR, 1);
+
+ return 0;
+}
+
+static int rsnd_src_quit(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ rsnd_mod_hw_stop(mod);
+
+ if (src->err)
+ dev_warn(dev, "%s[%d] under/over flow err = %d\n",
+ rsnd_mod_name(mod), rsnd_mod_id(mod), src->err);
+
+ src->convert_rate = 0;
+
+ /* reset sync convert_rate */
+ src->sync.val = 0;
+
+ return 0;
+}
+
+static int rsnd_src_start(struct rsnd_mod *mod)
+{
+ /*
+ * Cancel the initialization and operate the SRC function
+ * see rsnd_src_init()
+ */
+ rsnd_mod_write(mod, SRC_SRCIR, 0);
+
+ return 0;
+}
+
+static int rsnd_src_stop(struct rsnd_mod *mod)
+{
+ /* nothing to do */
+ return 0;
+}
+
+/*
+ * Gen1 functions
+ */
+static int rsnd_src_set_route_gen1(struct rsnd_mod *mod)
+{
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ struct src_route_config {
+ u32 mask;
+ int shift;
+ } routes[] = {
+ { 0xF, 0, }, /* 0 */
+ { 0xF, 4, }, /* 1 */
+ { 0xF, 8, }, /* 2 */
+ { 0x7, 12, }, /* 3 */
+ { 0x7, 16, }, /* 4 */
+ { 0x7, 20, }, /* 5 */
+ { 0x7, 24, }, /* 6 */
+ { 0x3, 28, }, /* 7 */
+ { 0x3, 30, }, /* 8 */
+ };
+ u32 mask;
+ u32 val;
+ int id;
+
+ id = rsnd_mod_id(mod);
+ if (id < 0 || id >= ARRAY_SIZE(routes))
+ return -EIO;
+
+ /*
+ * SRC_ROUTE_SELECT
+ */
+ val = rsnd_io_is_play(io) ? 0x1 : 0x2;
+ val = val << routes[id].shift;
+ mask = routes[id].mask << routes[id].shift;
+
+ rsnd_mod_bset(mod, SRC_ROUTE_SEL, mask, val);
+
+ return 0;
+}
+
+static int rsnd_src_set_convert_timing_gen1(struct rsnd_mod *mod)
+{
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ u32 convert_rate = rsnd_src_convert_rate(src);
+ u32 mask;
+ u32 val;
+ int shift;
+ int id = rsnd_mod_id(mod);
+ int ret;
+
+ /*
+ * SRC_TIMING_SELECT
+ */
+ shift = (id % 4) * 8;
+ mask = 0x1F << shift;
+
+ /*
+ * ADG is used as source clock if SRC was used,
+ * then, SSI WS is used as destination clock.
+ * SSI WS is used as source clock if SRC is not used
+ * (when playback, source/destination become reverse when capture)
+ */
+ ret = 0;
+ if (convert_rate) {
+ /* use ADG */
+ val = 0;
+ ret = rsnd_adg_set_convert_clk_gen1(priv, mod,
+ runtime->rate,
+ convert_rate);
+ } else if (8 == id) {
+ /* use SSI WS, but SRU8 is special */
+ val = id << shift;
+ } else {
+ /* use SSI WS */
+ val = (id + 1) << shift;
+ }
+
+ if (ret < 0)
+ return ret;
+
+ switch (id / 4) {
+ case 0:
+ rsnd_mod_bset(mod, SRC_TMG_SEL0, mask, val);
+ break;
+ case 1:
+ rsnd_mod_bset(mod, SRC_TMG_SEL1, mask, val);
+ break;
+ case 2:
+ rsnd_mod_bset(mod, SRC_TMG_SEL2, mask, val);
+ break;
+ }
+
+ return 0;
+}
+
+static int rsnd_src_set_convert_rate_gen1(struct rsnd_mod *mod)
+{
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+ int ret;
+
+ ret = rsnd_src_set_convert_rate(mod);
+ if (ret < 0)
+ return ret;
+
+ /* Select SRC mode (fixed value) */
+ rsnd_mod_write(mod, SRC_SRCCR, 0x00010110);
+
+ /* Set the restriction value of the FS ratio (98%) */
+ rsnd_mod_write(mod, SRC_MNFSR,
+ rsnd_mod_read(mod, SRC_IFSVR) / 100 * 98);
+
+ /* Gen1/Gen2 are not compatible */
+ if (rsnd_src_convert_rate(src))
+ rsnd_mod_write(mod, SRC_ROUTE_MODE0, 1);
+
+ /* no SRC_BFSSR settings, since SRC_SRCCR::BUFMD is 0 */
+
+ return 0;
+}
+
+static int rsnd_src_init_gen1(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ int ret;
+
+ ret = rsnd_src_init(mod, priv);
+ if (ret < 0)
+ return ret;
+
+ ret = rsnd_src_set_route_gen1(mod);
+ if (ret < 0)
+ return ret;
+
+ ret = rsnd_src_set_convert_rate_gen1(mod);
+ if (ret < 0)
+ return ret;
+
+ ret = rsnd_src_set_convert_timing_gen1(mod);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int rsnd_src_start_gen1(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ int id = rsnd_mod_id(mod);
+
+ rsnd_mod_bset(mod, SRC_ROUTE_CTRL, (1 << id), (1 << id));
+
+ return rsnd_src_start(mod);
+}
+
+static int rsnd_src_stop_gen1(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ int id = rsnd_mod_id(mod);
+
+ rsnd_mod_bset(mod, SRC_ROUTE_CTRL, (1 << id), 0);
+
+ return rsnd_src_stop(mod);
+}
+
+static struct rsnd_mod_ops rsnd_src_gen1_ops = {
+ .name = SRC_NAME,
+ .dma_req = rsnd_src_dma_req,
+ .init = rsnd_src_init_gen1,
+ .quit = rsnd_src_quit,
+ .start = rsnd_src_start_gen1,
+ .stop = rsnd_src_stop_gen1,
+ .hw_params = rsnd_src_hw_params,
+};
+
+/*
+ * Gen2 functions
+ */
+#define rsnd_src_irq_enable_gen2(mod) rsnd_src_irq_ctrol_gen2(mod, 1)
+#define rsnd_src_irq_disable_gen2(mod) rsnd_src_irq_ctrol_gen2(mod, 0)
+static void rsnd_src_irq_ctrol_gen2(struct rsnd_mod *mod, int enable)
+{
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+ u32 sys_int_val, int_val, sys_int_mask;
+ int irq = src->info->irq;
+ int id = rsnd_mod_id(mod);
+
+ sys_int_val =
+ sys_int_mask = OUF_SRC(id);
+ int_val = 0x3300;
+
+ /*
+ * IRQ is not supported on non-DT
+ * see
+ * rsnd_src_probe_gen2()
+ */
+ if ((irq <= 0) || !enable) {
+ sys_int_val = 0;
+ int_val = 0;
+ }
+
+ rsnd_mod_write(mod, SRC_INT_ENABLE0, int_val);
+ rsnd_mod_bset(mod, SCU_SYS_INT_EN0, sys_int_mask, sys_int_val);
+ rsnd_mod_bset(mod, SCU_SYS_INT_EN1, sys_int_mask, sys_int_val);
+}
+
+static void rsnd_src_error_clear_gen2(struct rsnd_mod *mod)
+{
+ u32 val = OUF_SRC(rsnd_mod_id(mod));
+
+ rsnd_mod_bset(mod, SCU_SYS_STATUS0, val, val);
+ rsnd_mod_bset(mod, SCU_SYS_STATUS1, val, val);
+}
+
+static bool rsnd_src_error_record_gen2(struct rsnd_mod *mod)
+{
+ u32 val = OUF_SRC(rsnd_mod_id(mod));
+ bool ret = false;
+
+ if ((rsnd_mod_read(mod, SCU_SYS_STATUS0) & val) ||
+ (rsnd_mod_read(mod, SCU_SYS_STATUS1) & val)) {
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+
+ src->err++;
+ ret = true;
+ }
+
+ /* clear error static */
+ rsnd_src_error_clear_gen2(mod);
+
+ return ret;
+}
+
+static int _rsnd_src_start_gen2(struct rsnd_mod *mod)
+{
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ u32 val = rsnd_io_to_mod_dvc(io) ? 0x01 : 0x11;
+
+ rsnd_mod_write(mod, SRC_CTRL, val);
+
+ rsnd_src_error_clear_gen2(mod);
+
+ rsnd_src_start(mod);
+
+ rsnd_src_irq_enable_gen2(mod);
+
+ return 0;
+}
+
+static int _rsnd_src_stop_gen2(struct rsnd_mod *mod)
+{
+ rsnd_src_irq_disable_gen2(mod);
+
+ rsnd_mod_write(mod, SRC_CTRL, 0);
+
+ rsnd_src_error_record_gen2(mod);
+
+ return rsnd_src_stop(mod);
+}
+
+static irqreturn_t rsnd_src_interrupt_gen2(int irq, void *data)
+{
+ struct rsnd_mod *mod = data;
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+
+ if (!io)
+ return IRQ_NONE;
+
+ if (rsnd_src_error_record_gen2(mod)) {
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ dev_dbg(dev, "%s[%d] restart\n",
+ rsnd_mod_name(mod), rsnd_mod_id(mod));
+
+ _rsnd_src_stop_gen2(mod);
+ if (src->err < 1024)
+ _rsnd_src_start_gen2(mod);
+ else
+ dev_warn(dev, "no more SRC restart\n");
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int rsnd_src_set_convert_rate_gen2(struct rsnd_mod *mod)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+ u32 convert_rate = rsnd_src_convert_rate(src);
+ u32 cr, route;
+ uint ratio;
+ int ret;
+
+ /* 6 - 1/6 are very enough ratio for SRC_BSDSR */
+ if (!convert_rate)
+ ratio = 0;
+ else if (convert_rate > runtime->rate)
+ ratio = 100 * convert_rate / runtime->rate;
+ else
+ ratio = 100 * runtime->rate / convert_rate;
+
+ if (ratio > 600) {
+ dev_err(dev, "FSO/FSI ratio error\n");
+ return -EINVAL;
+ }
+
+ ret = rsnd_src_set_convert_rate(mod);
+ if (ret < 0)
+ return ret;
+
+ cr = 0x00011110;
+ route = 0x0;
+ if (convert_rate) {
+ route = 0x1;
+
+ if (rsnd_enable_sync_convert(src)) {
+ cr |= 0x1;
+ route |= rsnd_io_is_play(io) ?
+ (0x1 << 24) : (0x1 << 25);
+ }
+ }
+
+ rsnd_mod_write(mod, SRC_SRCCR, cr);
+ rsnd_mod_write(mod, SRC_ROUTE_MODE0, route);
+
+ switch (rsnd_mod_id(mod)) {
+ case 5:
+ case 6:
+ case 7:
+ case 8:
+ rsnd_mod_write(mod, SRC_BSDSR, 0x02400000);
+ break;
+ default:
+ rsnd_mod_write(mod, SRC_BSDSR, 0x01800000);
+ break;
+ }
+
+ rsnd_mod_write(mod, SRC_BSISR, 0x00100060);
+
+ return 0;
+}
+
+static int rsnd_src_set_convert_timing_gen2(struct rsnd_mod *mod)
+{
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+ u32 convert_rate = rsnd_src_convert_rate(src);
+ int ret;
+
+ if (convert_rate)
+ ret = rsnd_adg_set_convert_clk_gen2(mod, io,
+ runtime->rate,
+ convert_rate);
+ else
+ ret = rsnd_adg_set_convert_timing_gen2(mod, io);
+
+ return ret;
+}
+
+static int rsnd_src_probe_gen2(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ int irq = src->info->irq;
+ int ret;
+
+ if (irq > 0) {
+ /*
+ * IRQ is not supported on non-DT
+ * see
+ * rsnd_src_irq_enable_gen2()
+ */
+ ret = devm_request_irq(dev, irq,
+ rsnd_src_interrupt_gen2,
+ IRQF_SHARED,
+ dev_name(dev), mod);
+ if (ret)
+ return ret;
+ }
+
+ ret = rsnd_dma_init(priv,
+ rsnd_mod_to_dma(mod),
+ src->info->dma_id);
+
+ return ret;
+}
+
+static int rsnd_src_remove_gen2(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ rsnd_dma_quit(rsnd_mod_to_dma(mod));
+
+ return 0;
+}
+
+static int rsnd_src_init_gen2(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ int ret;
+
+ ret = rsnd_src_init(mod, priv);
+ if (ret < 0)
+ return ret;
+
+ ret = rsnd_src_set_convert_rate_gen2(mod);
+ if (ret < 0)
+ return ret;
+
+ ret = rsnd_src_set_convert_timing_gen2(mod);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int rsnd_src_start_gen2(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ rsnd_dma_start(rsnd_mod_to_dma(mod));
+
+ return _rsnd_src_start_gen2(mod);
+}
+
+static int rsnd_src_stop_gen2(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ int ret;
+
+ ret = _rsnd_src_stop_gen2(mod);
+
+ rsnd_dma_stop(rsnd_mod_to_dma(mod));
+
+ return ret;
+}
+
+static void rsnd_src_reconvert_update(struct rsnd_mod *mod)
+{
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+ u32 convert_rate = rsnd_src_convert_rate(src);
+ u32 fsrate;
+
+ if (!runtime)
+ return;
+
+ if (!convert_rate)
+ convert_rate = runtime->rate;
+
+ fsrate = 0x0400000 / convert_rate * runtime->rate;
+
+ /* update IFS */
+ rsnd_mod_write(mod, SRC_IFSVR, fsrate);
+}
+
+static int rsnd_src_pcm_new(struct rsnd_mod *mod,
+ struct snd_soc_pcm_runtime *rtd)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+ int ret;
+
+ /*
+ * enable SRC sync convert if possible
+ */
+
+ /*
+ * Gen1 is not supported
+ */
+ if (rsnd_is_gen1(priv))
+ return 0;
+
+ /*
+ * SRC sync convert needs clock master
+ */
+ if (!rsnd_rdai_is_clk_master(rdai))
+ return 0;
+
+ /*
+ * We can't use SRC sync convert
+ * if it has DVC
+ */
+ if (rsnd_io_to_mod_dvc(io))
+ return 0;
+
+ /*
+ * enable sync convert
+ */
+ ret = rsnd_kctrl_new_s(mod, rtd,
+ rsnd_io_is_play(io) ?
+ "SRC Out Rate Switch" :
+ "SRC In Rate Switch",
+ rsnd_src_reconvert_update,
+ &src->sen, 1);
+ if (ret < 0)
+ return ret;
+
+ ret = rsnd_kctrl_new_s(mod, rtd,
+ rsnd_io_is_play(io) ?
+ "SRC Out Rate" :
+ "SRC In Rate",
+ rsnd_src_reconvert_update,
+ &src->sync, 192000);
+
+ return ret;
+}
+
+static struct rsnd_mod_ops rsnd_src_gen2_ops = {
+ .name = SRC_NAME,
+ .dma_req = rsnd_src_dma_req,
+ .probe = rsnd_src_probe_gen2,
+ .remove = rsnd_src_remove_gen2,
+ .init = rsnd_src_init_gen2,
+ .quit = rsnd_src_quit,
+ .start = rsnd_src_start_gen2,
+ .stop = rsnd_src_stop_gen2,
+ .hw_params = rsnd_src_hw_params,
+ .pcm_new = rsnd_src_pcm_new,
+};
+
+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 &((struct rsnd_src *)(priv->src) + id)->mod;
+}
+
+static void rsnd_of_parse_src(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv)
+{
+ struct device_node *src_node;
+ struct device_node *np;
+ struct rcar_snd_info *info = rsnd_priv_to_info(priv);
+ struct rsnd_src_platform_info *src_info;
+ struct device *dev = &pdev->dev;
+ int nr, i;
+
+ if (!of_data)
+ return;
+
+ src_node = rsnd_src_of_node(priv);
+ if (!src_node)
+ return;
+
+ nr = of_get_child_count(src_node);
+ if (!nr)
+ goto rsnd_of_parse_src_end;
+
+ src_info = devm_kzalloc(dev,
+ sizeof(struct rsnd_src_platform_info) * nr,
+ GFP_KERNEL);
+ if (!src_info) {
+ dev_err(dev, "src info allocation error\n");
+ goto rsnd_of_parse_src_end;
+ }
+
+ info->src_info = src_info;
+ info->src_info_nr = nr;
+
+ i = 0;
+ for_each_child_of_node(src_node, np) {
+ src_info[i].irq = irq_of_parse_and_map(np, 0);
+
+ i++;
+ }
+
+rsnd_of_parse_src_end:
+ of_node_put(src_node);
+}
+
+int rsnd_src_probe(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv)
+{
+ struct rcar_snd_info *info = rsnd_priv_to_info(priv);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_src *src;
+ struct rsnd_mod_ops *ops;
+ struct clk *clk;
+ char name[RSND_SRC_NAME_SIZE];
+ int i, nr, ret;
+
+ ops = NULL;
+ if (rsnd_is_gen1(priv))
+ ops = &rsnd_src_gen1_ops;
+ if (rsnd_is_gen2(priv))
+ ops = &rsnd_src_gen2_ops;
+ if (!ops) {
+ dev_err(dev, "unknown Generation\n");
+ return -EIO;
+ }
+
+ rsnd_of_parse_src(pdev, of_data, priv);
+
+ /*
+ * init SRC
+ */
+ nr = info->src_info_nr;
+ if (!nr)
+ return 0;
+
+ src = devm_kzalloc(dev, sizeof(*src) * nr, GFP_KERNEL);
+ if (!src) {
+ dev_err(dev, "SRC allocate failed\n");
+ return -ENOMEM;
+ }
+
+ priv->src_nr = nr;
+ priv->src = src;
+
+ for_each_rsnd_src(src, priv, i) {
+ snprintf(name, RSND_SRC_NAME_SIZE, "%s.%d",
+ SRC_NAME, i);
+
+ clk = devm_clk_get(dev, name);
+ if (IS_ERR(clk))
+ return PTR_ERR(clk);
+
+ src->info = &info->src_info[i];
+
+ ret = rsnd_mod_init(&src->mod, ops, clk, RSND_MOD_SRC, i);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+void rsnd_src_remove(struct platform_device *pdev,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_src *src;
+ int i;
+
+ for_each_rsnd_src(src, priv, i) {
+ rsnd_mod_quit(&src->mod);
+ }
+}
diff --git a/kernel/sound/soc/sh/rcar/ssi.c b/kernel/sound/soc/sh/rcar/ssi.c
new file mode 100644
index 000000000..7bb9c087f
--- /dev/null
+++ b/kernel/sound/soc/sh/rcar/ssi.c
@@ -0,0 +1,750 @@
+/*
+ * Renesas R-Car SSIU/SSI support
+ *
+ * Copyright (C) 2013 Renesas Solutions Corp.
+ * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ *
+ * Based on fsi.c
+ * Kuninori Morimoto <morimoto.kuninori@renesas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/delay.h>
+#include "rsnd.h"
+#define RSND_SSI_NAME_SIZE 16
+
+/*
+ * SSICR
+ */
+#define FORCE (1 << 31) /* Fixed */
+#define DMEN (1 << 28) /* DMA Enable */
+#define UIEN (1 << 27) /* Underflow Interrupt Enable */
+#define OIEN (1 << 26) /* Overflow Interrupt Enable */
+#define IIEN (1 << 25) /* Idle Mode Interrupt Enable */
+#define DIEN (1 << 24) /* Data Interrupt Enable */
+
+#define DWL_8 (0 << 19) /* Data Word Length */
+#define DWL_16 (1 << 19) /* Data Word Length */
+#define DWL_18 (2 << 19) /* Data Word Length */
+#define DWL_20 (3 << 19) /* Data Word Length */
+#define DWL_22 (4 << 19) /* Data Word Length */
+#define DWL_24 (5 << 19) /* Data Word Length */
+#define DWL_32 (6 << 19) /* Data Word Length */
+
+#define SWL_32 (3 << 16) /* R/W System Word Length */
+#define SCKD (1 << 15) /* Serial Bit Clock Direction */
+#define SWSD (1 << 14) /* Serial WS Direction */
+#define SCKP (1 << 13) /* Serial Bit Clock Polarity */
+#define SWSP (1 << 12) /* Serial WS Polarity */
+#define SDTA (1 << 10) /* Serial Data Alignment */
+#define DEL (1 << 8) /* Serial Data Delay */
+#define CKDV(v) (v << 4) /* Serial Clock Division Ratio */
+#define TRMD (1 << 1) /* Transmit/Receive Mode Select */
+#define EN (1 << 0) /* SSI Module Enable */
+
+/*
+ * SSISR
+ */
+#define UIRQ (1 << 27) /* Underflow Error Interrupt Status */
+#define OIRQ (1 << 26) /* Overflow Error Interrupt Status */
+#define IIRQ (1 << 25) /* Idle Mode Interrupt Status */
+#define DIRQ (1 << 24) /* Data Interrupt Status Flag */
+
+/*
+ * SSIWSR
+ */
+#define CONT (1 << 8) /* WS Continue Function */
+
+#define SSI_NAME "ssi"
+
+struct rsnd_ssi {
+ struct rsnd_ssi_platform_info *info; /* rcar_snd.h */
+ struct rsnd_ssi *parent;
+ struct rsnd_mod mod;
+
+ u32 cr_own;
+ u32 cr_clk;
+ int err;
+ unsigned int usrcnt;
+};
+
+#define for_each_rsnd_ssi(pos, priv, i) \
+ for (i = 0; \
+ (i < rsnd_ssi_nr(priv)) && \
+ ((pos) = ((struct rsnd_ssi *)(priv)->ssi + i)); \
+ i++)
+
+#define rsnd_ssi_nr(priv) ((priv)->ssi_nr)
+#define rsnd_mod_to_ssi(_mod) container_of((_mod), struct rsnd_ssi, mod)
+#define rsnd_dma_to_ssi(dma) rsnd_mod_to_ssi(rsnd_dma_to_mod(dma))
+#define rsnd_ssi_pio_available(ssi) ((ssi)->info->irq > 0)
+#define rsnd_ssi_clk_from_parent(ssi) ((ssi)->parent)
+#define rsnd_ssi_mode_flags(p) ((p)->info->flags)
+#define rsnd_ssi_dai_id(ssi) ((ssi)->info->dai_id)
+#define rsnd_ssi_of_node(priv) \
+ of_get_child_by_name(rsnd_priv_to_dev(priv)->of_node, "rcar_sound,ssi")
+
+int rsnd_ssi_use_busif(struct rsnd_mod *mod)
+{
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ int use_busif = 0;
+
+ if (!rsnd_ssi_is_dma_mode(mod))
+ return 0;
+
+ if (!(rsnd_ssi_mode_flags(ssi) & RSND_SSI_NO_BUSIF))
+ use_busif = 1;
+ if (rsnd_io_to_mod_src(io))
+ use_busif = 1;
+
+ return use_busif;
+}
+
+static void rsnd_ssi_status_check(struct rsnd_mod *mod,
+ u32 bit)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ u32 status;
+ int i;
+
+ for (i = 0; i < 1024; i++) {
+ status = rsnd_mod_read(mod, SSISR);
+ if (status & bit)
+ return;
+
+ udelay(50);
+ }
+
+ dev_warn(dev, "status check failed\n");
+}
+
+static int rsnd_ssi_master_clk_start(struct rsnd_ssi *ssi,
+ struct rsnd_dai_stream *io)
+{
+ struct rsnd_priv *priv = rsnd_io_to_priv(io);
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ int i, j, ret;
+ int adg_clk_div_table[] = {
+ 1, 6, /* see adg.c */
+ };
+ int ssi_clk_mul_table[] = {
+ 1, 2, 4, 8, 16, 6, 12,
+ };
+ unsigned int main_rate;
+ unsigned int rate = rsnd_src_get_ssi_rate(priv, io, runtime);
+
+ /*
+ * Find best clock, and try to start ADG
+ */
+ for (i = 0; i < ARRAY_SIZE(adg_clk_div_table); i++) {
+ for (j = 0; j < ARRAY_SIZE(ssi_clk_mul_table); j++) {
+
+ /*
+ * this driver is assuming that
+ * system word is 64fs (= 2 x 32bit)
+ * see rsnd_ssi_init()
+ */
+ main_rate = rate / adg_clk_div_table[i]
+ * 32 * 2 * ssi_clk_mul_table[j];
+
+ ret = rsnd_adg_ssi_clk_try_start(&ssi->mod, main_rate);
+ if (0 == ret) {
+ ssi->cr_clk = FORCE | SWL_32 |
+ SCKD | SWSD | CKDV(j);
+
+ dev_dbg(dev, "%s[%d] outputs %u Hz\n",
+ rsnd_mod_name(&ssi->mod),
+ rsnd_mod_id(&ssi->mod), rate);
+
+ return 0;
+ }
+ }
+ }
+
+ dev_err(dev, "unsupported clock rate\n");
+ return -EIO;
+}
+
+static void rsnd_ssi_master_clk_stop(struct rsnd_ssi *ssi)
+{
+ ssi->cr_clk = 0;
+ rsnd_adg_ssi_clk_stop(&ssi->mod);
+}
+
+static void rsnd_ssi_hw_start(struct rsnd_ssi *ssi,
+ struct rsnd_dai_stream *io)
+{
+ struct rsnd_priv *priv = rsnd_io_to_priv(io);
+ struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ u32 cr_mode;
+ u32 cr;
+
+ if (0 == ssi->usrcnt) {
+ rsnd_mod_hw_start(&ssi->mod);
+
+ if (rsnd_rdai_is_clk_master(rdai)) {
+ if (rsnd_ssi_clk_from_parent(ssi))
+ rsnd_ssi_hw_start(ssi->parent, io);
+ else
+ rsnd_ssi_master_clk_start(ssi, io);
+ }
+ }
+
+ cr_mode = rsnd_ssi_is_dma_mode(&ssi->mod) ?
+ DMEN : /* DMA : enable DMA */
+ DIEN; /* PIO : enable Data interrupt */
+
+
+ cr = ssi->cr_own |
+ ssi->cr_clk |
+ cr_mode |
+ UIEN | OIEN | EN;
+
+ rsnd_mod_write(&ssi->mod, SSICR, cr);
+
+ /* enable WS continue */
+ if (rsnd_rdai_is_clk_master(rdai))
+ rsnd_mod_write(&ssi->mod, SSIWSR, CONT);
+
+ /* clear error status */
+ rsnd_mod_write(&ssi->mod, SSISR, 0);
+
+ ssi->usrcnt++;
+
+ dev_dbg(dev, "%s[%d] hw started\n",
+ rsnd_mod_name(&ssi->mod), rsnd_mod_id(&ssi->mod));
+}
+
+static void rsnd_ssi_hw_stop(struct rsnd_ssi *ssi)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(&ssi->mod);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(&ssi->mod);
+ struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ u32 cr;
+
+ if (0 == ssi->usrcnt) /* stop might be called without start */
+ return;
+
+ ssi->usrcnt--;
+
+ if (0 == ssi->usrcnt) {
+ /*
+ * disable all IRQ,
+ * and, wait all data was sent
+ */
+ cr = ssi->cr_own |
+ ssi->cr_clk;
+
+ rsnd_mod_write(&ssi->mod, SSICR, cr | EN);
+ rsnd_ssi_status_check(&ssi->mod, DIRQ);
+
+ /*
+ * disable SSI,
+ * and, wait idle state
+ */
+ rsnd_mod_write(&ssi->mod, SSICR, cr); /* disabled all */
+ rsnd_ssi_status_check(&ssi->mod, IIRQ);
+
+ if (rsnd_rdai_is_clk_master(rdai)) {
+ if (rsnd_ssi_clk_from_parent(ssi))
+ rsnd_ssi_hw_stop(ssi->parent);
+ else
+ rsnd_ssi_master_clk_stop(ssi);
+ }
+
+ rsnd_mod_hw_stop(&ssi->mod);
+ }
+
+ dev_dbg(dev, "%s[%d] hw stopped\n",
+ rsnd_mod_name(&ssi->mod), rsnd_mod_id(&ssi->mod));
+}
+
+/*
+ * SSI mod common functions
+ */
+static int rsnd_ssi_init(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ u32 cr;
+
+ cr = FORCE;
+
+ /*
+ * always use 32bit system word for easy clock calculation.
+ * see also rsnd_ssi_master_clk_enable()
+ */
+ cr |= SWL_32;
+
+ /*
+ * init clock settings for SSICR
+ */
+ switch (runtime->sample_bits) {
+ case 16:
+ cr |= DWL_16;
+ break;
+ case 32:
+ cr |= DWL_24;
+ break;
+ default:
+ return -EIO;
+ }
+
+ if (rdai->bit_clk_inv)
+ cr |= SCKP;
+ if (rdai->frm_clk_inv)
+ cr |= SWSP;
+ if (rdai->data_alignment)
+ cr |= SDTA;
+ if (rdai->sys_delay)
+ cr |= DEL;
+ if (rsnd_io_is_play(io))
+ cr |= TRMD;
+
+ /*
+ * set ssi parameter
+ */
+ ssi->cr_own = cr;
+ ssi->err = -1; /* ignore 1st error */
+
+ return 0;
+}
+
+static int rsnd_ssi_quit(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ if (ssi->err > 0)
+ dev_warn(dev, "%s[%d] under/over flow err = %d\n",
+ rsnd_mod_name(mod), rsnd_mod_id(mod), ssi->err);
+
+ ssi->cr_own = 0;
+ ssi->err = 0;
+
+ return 0;
+}
+
+static void rsnd_ssi_record_error(struct rsnd_ssi *ssi, u32 status)
+{
+ /* under/over flow error */
+ if (status & (UIRQ | OIRQ)) {
+ ssi->err++;
+
+ /* clear error status */
+ rsnd_mod_write(&ssi->mod, SSISR, 0);
+ }
+}
+
+static int rsnd_ssi_start(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+
+ rsnd_src_ssiu_start(mod, rsnd_ssi_use_busif(mod));
+
+ rsnd_ssi_hw_start(ssi, io);
+
+ rsnd_src_ssi_irq_enable(mod);
+
+ return 0;
+}
+
+static int rsnd_ssi_stop(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+
+ rsnd_src_ssi_irq_disable(mod);
+
+ rsnd_ssi_record_error(ssi, rsnd_mod_read(mod, SSISR));
+
+ rsnd_ssi_hw_stop(ssi);
+
+ rsnd_src_ssiu_stop(mod);
+
+ return 0;
+}
+
+static irqreturn_t rsnd_ssi_interrupt(int irq, void *data)
+{
+ struct rsnd_ssi *ssi = data;
+ struct rsnd_mod *mod = &ssi->mod;
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ int is_dma = rsnd_ssi_is_dma_mode(mod);
+ u32 status = rsnd_mod_read(mod, SSISR);
+
+ if (!io)
+ return IRQ_NONE;
+
+ /* PIO only */
+ if (!is_dma && (status & DIRQ)) {
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ u32 *buf = (u32 *)(runtime->dma_area +
+ rsnd_dai_pointer_offset(io, 0));
+
+ /*
+ * 8/16/32 data can be assesse to TDR/RDR register
+ * directly as 32bit data
+ * see rsnd_ssi_init()
+ */
+ if (rsnd_io_is_play(io))
+ rsnd_mod_write(mod, SSITDR, *buf);
+ else
+ *buf = rsnd_mod_read(mod, SSIRDR);
+
+ rsnd_dai_pointer_update(io, sizeof(*buf));
+ }
+
+ /* PIO / DMA */
+ if (status & (UIRQ | OIRQ)) {
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ /*
+ * restart SSI
+ */
+ dev_dbg(dev, "%s[%d] restart\n",
+ rsnd_mod_name(mod), rsnd_mod_id(mod));
+
+ rsnd_ssi_stop(mod, priv);
+ if (ssi->err < 1024)
+ rsnd_ssi_start(mod, priv);
+ else
+ dev_warn(dev, "no more SSI restart\n");
+ }
+
+ rsnd_ssi_record_error(ssi, status);
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * SSI PIO
+ */
+static int rsnd_ssi_pio_probe(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+ int ret;
+
+ ret = devm_request_irq(dev, ssi->info->irq,
+ rsnd_ssi_interrupt,
+ IRQF_SHARED,
+ dev_name(dev), ssi);
+
+ return ret;
+}
+
+static struct rsnd_mod_ops rsnd_ssi_pio_ops = {
+ .name = SSI_NAME,
+ .probe = rsnd_ssi_pio_probe,
+ .init = rsnd_ssi_init,
+ .quit = rsnd_ssi_quit,
+ .start = rsnd_ssi_start,
+ .stop = rsnd_ssi_stop,
+};
+
+static int rsnd_ssi_dma_probe(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ int dma_id = ssi->info->dma_id;
+ int ret;
+
+ ret = devm_request_irq(dev, ssi->info->irq,
+ rsnd_ssi_interrupt,
+ IRQF_SHARED,
+ dev_name(dev), ssi);
+ if (ret)
+ return ret;
+
+ ret = rsnd_dma_init(
+ priv, rsnd_mod_to_dma(mod),
+ dma_id);
+
+ return ret;
+}
+
+static int rsnd_ssi_dma_remove(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ int irq = ssi->info->irq;
+
+ rsnd_dma_quit(rsnd_mod_to_dma(mod));
+
+ /* PIO will request IRQ again */
+ devm_free_irq(dev, irq, ssi);
+
+ return 0;
+}
+
+static int rsnd_ssi_fallback(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ /*
+ * fallback to PIO
+ *
+ * SSI .probe might be called again.
+ * see
+ * rsnd_rdai_continuance_probe()
+ */
+ mod->ops = &rsnd_ssi_pio_ops;
+
+ dev_info(dev, "%s[%d] fallback to PIO mode\n",
+ rsnd_mod_name(mod), rsnd_mod_id(mod));
+
+ return 0;
+}
+
+static int rsnd_ssi_dma_start(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_dma *dma = rsnd_mod_to_dma(mod);
+
+ rsnd_dma_start(dma);
+
+ rsnd_ssi_start(mod, priv);
+
+ return 0;
+}
+
+static int rsnd_ssi_dma_stop(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_dma *dma = rsnd_mod_to_dma(mod);
+
+ rsnd_ssi_stop(mod, priv);
+
+ rsnd_dma_stop(dma);
+
+ return 0;
+}
+
+static struct dma_chan *rsnd_ssi_dma_req(struct rsnd_mod *mod)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ int is_play = rsnd_io_is_play(io);
+ char *name;
+
+ if (rsnd_ssi_use_busif(mod))
+ name = is_play ? "rxu" : "txu";
+ else
+ name = is_play ? "rx" : "tx";
+
+ return rsnd_dma_request_channel(rsnd_ssi_of_node(priv),
+ mod, name);
+}
+
+static struct rsnd_mod_ops rsnd_ssi_dma_ops = {
+ .name = SSI_NAME,
+ .dma_req = rsnd_ssi_dma_req,
+ .probe = rsnd_ssi_dma_probe,
+ .remove = rsnd_ssi_dma_remove,
+ .init = rsnd_ssi_init,
+ .quit = rsnd_ssi_quit,
+ .start = rsnd_ssi_dma_start,
+ .stop = rsnd_ssi_dma_stop,
+ .fallback = rsnd_ssi_fallback,
+};
+
+int rsnd_ssi_is_dma_mode(struct rsnd_mod *mod)
+{
+ return mod->ops == &rsnd_ssi_dma_ops;
+}
+
+
+/*
+ * Non SSI
+ */
+static struct rsnd_mod_ops rsnd_ssi_non_ops = {
+ .name = SSI_NAME,
+};
+
+/*
+ * ssi mod function
+ */
+struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id)
+{
+ if (WARN_ON(id < 0 || id >= rsnd_ssi_nr(priv)))
+ id = 0;
+
+ return &((struct rsnd_ssi *)(priv->ssi) + id)->mod;
+}
+
+int rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod)
+{
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+
+ return !!(rsnd_ssi_mode_flags(ssi) & RSND_SSI_CLK_PIN_SHARE);
+}
+
+static void rsnd_ssi_parent_clk_setup(struct rsnd_priv *priv, struct rsnd_ssi *ssi)
+{
+ if (!rsnd_ssi_is_pin_sharing(&ssi->mod))
+ return;
+
+ switch (rsnd_mod_id(&ssi->mod)) {
+ case 1:
+ case 2:
+ ssi->parent = rsnd_mod_to_ssi(rsnd_ssi_mod_get(priv, 0));
+ break;
+ case 4:
+ ssi->parent = rsnd_mod_to_ssi(rsnd_ssi_mod_get(priv, 3));
+ break;
+ case 8:
+ ssi->parent = rsnd_mod_to_ssi(rsnd_ssi_mod_get(priv, 7));
+ break;
+ }
+}
+
+
+static void rsnd_of_parse_ssi(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv)
+{
+ struct device_node *node;
+ struct device_node *np;
+ struct rsnd_ssi_platform_info *ssi_info;
+ struct rcar_snd_info *info = rsnd_priv_to_info(priv);
+ struct device *dev = &pdev->dev;
+ int nr, i;
+
+ if (!of_data)
+ return;
+
+ node = rsnd_ssi_of_node(priv);
+ if (!node)
+ return;
+
+ nr = of_get_child_count(node);
+ if (!nr)
+ goto rsnd_of_parse_ssi_end;
+
+ ssi_info = devm_kzalloc(dev,
+ sizeof(struct rsnd_ssi_platform_info) * nr,
+ GFP_KERNEL);
+ if (!ssi_info) {
+ dev_err(dev, "ssi info allocation error\n");
+ goto rsnd_of_parse_ssi_end;
+ }
+
+ info->ssi_info = ssi_info;
+ info->ssi_info_nr = nr;
+
+ i = -1;
+ for_each_child_of_node(node, np) {
+ i++;
+
+ ssi_info = info->ssi_info + i;
+
+ /*
+ * pin settings
+ */
+ if (of_get_property(np, "shared-pin", NULL))
+ ssi_info->flags |= RSND_SSI_CLK_PIN_SHARE;
+
+ /*
+ * irq
+ */
+ ssi_info->irq = irq_of_parse_and_map(np, 0);
+
+ /*
+ * DMA
+ */
+ ssi_info->dma_id = of_get_property(np, "pio-transfer", NULL) ?
+ 0 : 1;
+
+ if (of_get_property(np, "no-busif", NULL))
+ ssi_info->flags |= RSND_SSI_NO_BUSIF;
+ }
+
+rsnd_of_parse_ssi_end:
+ of_node_put(node);
+}
+
+int rsnd_ssi_probe(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv)
+{
+ struct rcar_snd_info *info = rsnd_priv_to_info(priv);
+ struct rsnd_ssi_platform_info *pinfo;
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_mod_ops *ops;
+ struct clk *clk;
+ struct rsnd_ssi *ssi;
+ char name[RSND_SSI_NAME_SIZE];
+ int i, nr, ret;
+
+ rsnd_of_parse_ssi(pdev, of_data, priv);
+
+ /*
+ * init SSI
+ */
+ nr = info->ssi_info_nr;
+ ssi = devm_kzalloc(dev, sizeof(*ssi) * nr, GFP_KERNEL);
+ if (!ssi) {
+ dev_err(dev, "SSI allocate failed\n");
+ return -ENOMEM;
+ }
+
+ priv->ssi = ssi;
+ priv->ssi_nr = nr;
+
+ for_each_rsnd_ssi(ssi, priv, i) {
+ pinfo = &info->ssi_info[i];
+
+ snprintf(name, RSND_SSI_NAME_SIZE, "%s.%d",
+ SSI_NAME, i);
+
+ clk = devm_clk_get(dev, name);
+ if (IS_ERR(clk))
+ return PTR_ERR(clk);
+
+ ssi->info = pinfo;
+
+ ops = &rsnd_ssi_non_ops;
+ if (pinfo->dma_id > 0)
+ ops = &rsnd_ssi_dma_ops;
+ else if (rsnd_ssi_pio_available(ssi))
+ ops = &rsnd_ssi_pio_ops;
+
+ ret = rsnd_mod_init(&ssi->mod, ops, clk, RSND_MOD_SSI, i);
+ if (ret)
+ return ret;
+
+ rsnd_ssi_parent_clk_setup(priv, ssi);
+ }
+
+ return 0;
+}
+
+void rsnd_ssi_remove(struct platform_device *pdev,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_ssi *ssi;
+ int i;
+
+ for_each_rsnd_ssi(ssi, priv, i) {
+ rsnd_mod_quit(&ssi->mod);
+ }
+}