forked from Minki/linux
3539cacff2
This patch adds Volume Ramp to Renesas sound driver. amixer set "DVC Out" 100% amixer set "DVC Out Ramp Up Rate" "0.125 dB/64 steps" amixer set "DVC Out Ramp Down Rate" "0.125 dB/512 steps" amixer set "DVC Out Ramp" on aplay xxx.wav & amixer set "DVC Out" 80% // Volume Down amixer set "DVC Out" 100% // Volume Up Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
515 lines
12 KiB
C
515 lines
12 KiB
C
/*
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* Renesas R-Car DVC support
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*
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* Copyright (C) 2014 Renesas Solutions Corp.
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* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include "rsnd.h"
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#define RSND_DVC_NAME_SIZE 16
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#define RSND_DVC_CHANNELS 2
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#define DVC_NAME "dvc"
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struct rsnd_dvc_cfg {
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unsigned int max;
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unsigned int size;
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u32 *val;
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const char * const *texts;
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};
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struct rsnd_dvc_cfg_m {
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struct rsnd_dvc_cfg cfg;
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u32 val[RSND_DVC_CHANNELS];
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};
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struct rsnd_dvc_cfg_s {
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struct rsnd_dvc_cfg cfg;
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u32 val;
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};
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struct rsnd_dvc {
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struct rsnd_dvc_platform_info *info; /* rcar_snd.h */
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struct rsnd_mod mod;
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struct clk *clk;
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struct rsnd_dvc_cfg_m volume;
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struct rsnd_dvc_cfg_m mute;
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struct rsnd_dvc_cfg_s ren; /* Ramp Enable */
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struct rsnd_dvc_cfg_s rup; /* Ramp Rate Up */
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struct rsnd_dvc_cfg_s rdown; /* Ramp Rate Down */
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};
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#define rsnd_mod_to_dvc(_mod) \
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container_of((_mod), struct rsnd_dvc, mod)
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#define for_each_rsnd_dvc(pos, priv, i) \
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for ((i) = 0; \
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((i) < rsnd_dvc_nr(priv)) && \
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((pos) = (struct rsnd_dvc *)(priv)->dvc + i); \
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i++)
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static const char const *dvc_ramp_rate[] = {
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"128 dB/1 step", /* 00000 */
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"64 dB/1 step", /* 00001 */
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"32 dB/1 step", /* 00010 */
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"16 dB/1 step", /* 00011 */
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"8 dB/1 step", /* 00100 */
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"4 dB/1 step", /* 00101 */
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"2 dB/1 step", /* 00110 */
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"1 dB/1 step", /* 00111 */
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"0.5 dB/1 step", /* 01000 */
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"0.25 dB/1 step", /* 01001 */
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"0.125 dB/1 step", /* 01010 */
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"0.125 dB/2 steps", /* 01011 */
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"0.125 dB/4 steps", /* 01100 */
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"0.125 dB/8 steps", /* 01101 */
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"0.125 dB/16 steps", /* 01110 */
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"0.125 dB/32 steps", /* 01111 */
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"0.125 dB/64 steps", /* 10000 */
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"0.125 dB/128 steps", /* 10001 */
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"0.125 dB/256 steps", /* 10010 */
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"0.125 dB/512 steps", /* 10011 */
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"0.125 dB/1024 steps", /* 10100 */
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"0.125 dB/2048 steps", /* 10101 */
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"0.125 dB/4096 steps", /* 10110 */
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"0.125 dB/8192 steps", /* 10111 */
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};
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static void rsnd_dvc_volume_update(struct rsnd_mod *mod)
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{
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struct rsnd_dvc *dvc = rsnd_mod_to_dvc(mod);
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u32 val[RSND_DVC_CHANNELS];
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u32 dvucr = 0;
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u32 mute = 0;
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int i;
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for (i = 0; i < dvc->mute.cfg.size; i++)
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mute |= (!!dvc->mute.cfg.val[i]) << i;
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/* Disable DVC Register access */
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rsnd_mod_write(mod, DVC_DVUER, 0);
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/* Enable Ramp */
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if (dvc->ren.val) {
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dvucr |= 0x10;
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/* Digital Volume Max */
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for (i = 0; i < RSND_DVC_CHANNELS; i++)
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val[i] = dvc->volume.cfg.max;
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rsnd_mod_write(mod, DVC_VRCTR, 0xff);
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rsnd_mod_write(mod, DVC_VRPDR, dvc->rup.val << 8 |
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dvc->rdown.val);
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/*
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* FIXME !!
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* use scale-downed Digital Volume
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* as Volume Ramp
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* 7F FFFF -> 3FF
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*/
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rsnd_mod_write(mod, DVC_VRDBR,
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0x3ff - (dvc->volume.val[0] >> 13));
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} else {
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for (i = 0; i < RSND_DVC_CHANNELS; i++)
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val[i] = dvc->volume.val[i];
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}
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/* Enable Digital Volume */
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dvucr |= 0x100;
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rsnd_mod_write(mod, DVC_VOL0R, val[0]);
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rsnd_mod_write(mod, DVC_VOL1R, val[1]);
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/* Enable Mute */
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if (mute) {
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dvucr |= 0x1;
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rsnd_mod_write(mod, DVC_ZCMCR, mute);
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}
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rsnd_mod_write(mod, DVC_DVUCR, dvucr);
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/* Enable DVC Register access */
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rsnd_mod_write(mod, DVC_DVUER, 1);
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}
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static int rsnd_dvc_probe_gen2(struct rsnd_mod *mod,
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struct rsnd_dai *rdai)
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{
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struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
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struct device *dev = rsnd_priv_to_dev(priv);
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dev_dbg(dev, "%s[%d] (Gen2) is probed\n",
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rsnd_mod_name(mod), rsnd_mod_id(mod));
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return 0;
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}
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static int rsnd_dvc_init(struct rsnd_mod *dvc_mod,
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struct rsnd_dai *rdai)
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{
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struct rsnd_dvc *dvc = rsnd_mod_to_dvc(dvc_mod);
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struct rsnd_dai_stream *io = rsnd_mod_to_io(dvc_mod);
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struct rsnd_priv *priv = rsnd_mod_to_priv(dvc_mod);
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struct rsnd_mod *src_mod = rsnd_io_to_mod_src(io);
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struct device *dev = rsnd_priv_to_dev(priv);
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int dvc_id = rsnd_mod_id(dvc_mod);
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int src_id = rsnd_mod_id(src_mod);
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u32 route[] = {
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[0] = 0x30000,
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[1] = 0x30001,
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[2] = 0x40000,
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[3] = 0x10000,
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[4] = 0x20000,
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[5] = 0x40100
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};
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if (src_id >= ARRAY_SIZE(route)) {
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dev_err(dev, "DVC%d isn't connected to SRC%d\n", dvc_id, src_id);
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return -EINVAL;
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}
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clk_prepare_enable(dvc->clk);
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/*
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* fixme
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* it doesn't support CTU/MIX
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*/
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rsnd_mod_write(dvc_mod, CMD_ROUTE_SLCT, route[src_id]);
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rsnd_mod_write(dvc_mod, DVC_SWRSR, 0);
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rsnd_mod_write(dvc_mod, DVC_SWRSR, 1);
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rsnd_mod_write(dvc_mod, DVC_DVUIR, 1);
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rsnd_mod_write(dvc_mod, DVC_ADINR, rsnd_get_adinr(dvc_mod));
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/* ch0/ch1 Volume */
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rsnd_dvc_volume_update(dvc_mod);
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rsnd_mod_write(dvc_mod, DVC_DVUIR, 0);
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rsnd_adg_set_cmd_timsel_gen2(rdai, dvc_mod, io);
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return 0;
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}
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static int rsnd_dvc_quit(struct rsnd_mod *mod,
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struct rsnd_dai *rdai)
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{
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struct rsnd_dvc *dvc = rsnd_mod_to_dvc(mod);
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clk_disable_unprepare(dvc->clk);
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return 0;
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}
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static int rsnd_dvc_start(struct rsnd_mod *mod,
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struct rsnd_dai *rdai)
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{
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rsnd_mod_write(mod, CMD_CTRL, 0x10);
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return 0;
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}
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static int rsnd_dvc_stop(struct rsnd_mod *mod,
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struct rsnd_dai *rdai)
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{
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rsnd_mod_write(mod, CMD_CTRL, 0);
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return 0;
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}
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static int rsnd_dvc_volume_info(struct snd_kcontrol *kctrl,
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struct snd_ctl_elem_info *uinfo)
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{
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struct rsnd_dvc_cfg *cfg = (struct rsnd_dvc_cfg *)kctrl->private_value;
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if (cfg->texts) {
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uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
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uinfo->count = cfg->size;
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uinfo->value.enumerated.items = cfg->max;
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if (uinfo->value.enumerated.item >= cfg->max)
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uinfo->value.enumerated.item = cfg->max - 1;
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strlcpy(uinfo->value.enumerated.name,
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cfg->texts[uinfo->value.enumerated.item],
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sizeof(uinfo->value.enumerated.name));
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} else {
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uinfo->count = cfg->size;
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uinfo->value.integer.min = 0;
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uinfo->value.integer.max = cfg->max;
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uinfo->type = (cfg->max == 1) ?
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SNDRV_CTL_ELEM_TYPE_BOOLEAN :
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SNDRV_CTL_ELEM_TYPE_INTEGER;
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}
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return 0;
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}
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static int rsnd_dvc_volume_get(struct snd_kcontrol *kctrl,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct rsnd_dvc_cfg *cfg = (struct rsnd_dvc_cfg *)kctrl->private_value;
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int i;
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for (i = 0; i < cfg->size; i++)
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if (cfg->texts)
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ucontrol->value.enumerated.item[i] = cfg->val[i];
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else
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ucontrol->value.integer.value[i] = cfg->val[i];
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return 0;
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}
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static int rsnd_dvc_volume_put(struct snd_kcontrol *kctrl,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct rsnd_mod *mod = snd_kcontrol_chip(kctrl);
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struct rsnd_dvc_cfg *cfg = (struct rsnd_dvc_cfg *)kctrl->private_value;
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int i, change = 0;
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for (i = 0; i < cfg->size; i++) {
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if (cfg->texts) {
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change |= (ucontrol->value.enumerated.item[i] != cfg->val[i]);
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cfg->val[i] = ucontrol->value.enumerated.item[i];
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} else {
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change |= (ucontrol->value.integer.value[i] != cfg->val[i]);
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cfg->val[i] = ucontrol->value.integer.value[i];
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}
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}
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if (change)
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rsnd_dvc_volume_update(mod);
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return change;
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}
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static int __rsnd_dvc_pcm_new(struct rsnd_mod *mod,
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struct rsnd_dai *rdai,
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struct snd_soc_pcm_runtime *rtd,
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const unsigned char *name,
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struct rsnd_dvc_cfg *private)
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{
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struct snd_card *card = rtd->card->snd_card;
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struct snd_kcontrol *kctrl;
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struct snd_kcontrol_new knew = {
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.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
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.name = name,
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.info = rsnd_dvc_volume_info,
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.get = rsnd_dvc_volume_get,
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.put = rsnd_dvc_volume_put,
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.private_value = (unsigned long)private,
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};
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int ret;
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kctrl = snd_ctl_new1(&knew, mod);
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if (!kctrl)
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return -ENOMEM;
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ret = snd_ctl_add(card, kctrl);
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if (ret < 0)
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return ret;
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return 0;
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}
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static int _rsnd_dvc_pcm_new_m(struct rsnd_mod *mod,
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struct rsnd_dai *rdai,
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struct snd_soc_pcm_runtime *rtd,
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const unsigned char *name,
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struct rsnd_dvc_cfg_m *private,
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u32 max)
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{
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private->cfg.max = max;
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private->cfg.size = RSND_DVC_CHANNELS;
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private->cfg.val = private->val;
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return __rsnd_dvc_pcm_new(mod, rdai, rtd, name, &private->cfg);
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}
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static int _rsnd_dvc_pcm_new_s(struct rsnd_mod *mod,
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struct rsnd_dai *rdai,
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struct snd_soc_pcm_runtime *rtd,
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const unsigned char *name,
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struct rsnd_dvc_cfg_s *private,
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u32 max)
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{
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private->cfg.max = max;
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private->cfg.size = 1;
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private->cfg.val = &private->val;
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return __rsnd_dvc_pcm_new(mod, rdai, rtd, name, &private->cfg);
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}
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static int _rsnd_dvc_pcm_new_e(struct rsnd_mod *mod,
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struct rsnd_dai *rdai,
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struct snd_soc_pcm_runtime *rtd,
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const unsigned char *name,
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struct rsnd_dvc_cfg_s *private,
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const char * const *texts,
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u32 max)
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{
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private->cfg.max = max;
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private->cfg.size = 1;
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private->cfg.val = &private->val;
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private->cfg.texts = texts;
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return __rsnd_dvc_pcm_new(mod, rdai, rtd, name, &private->cfg);
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}
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static int rsnd_dvc_pcm_new(struct rsnd_mod *mod,
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struct rsnd_dai *rdai,
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struct snd_soc_pcm_runtime *rtd)
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{
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struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
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struct rsnd_dvc *dvc = rsnd_mod_to_dvc(mod);
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int ret;
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/* Volume */
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ret = _rsnd_dvc_pcm_new_m(mod, rdai, rtd,
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rsnd_dai_is_play(rdai, io) ?
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"DVC Out Playback Volume" : "DVC In Capture Volume",
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&dvc->volume, 0x00800000 - 1);
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if (ret < 0)
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return ret;
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/* Mute */
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ret = _rsnd_dvc_pcm_new_m(mod, rdai, rtd,
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rsnd_dai_is_play(rdai, io) ?
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"DVC Out Mute Switch" : "DVC In Mute Switch",
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&dvc->mute, 1);
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if (ret < 0)
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return ret;
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/* Ramp */
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ret = _rsnd_dvc_pcm_new_s(mod, rdai, rtd,
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rsnd_dai_is_play(rdai, io) ?
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"DVC Out Ramp Switch" : "DVC In Ramp Switch",
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&dvc->ren, 1);
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if (ret < 0)
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return ret;
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ret = _rsnd_dvc_pcm_new_e(mod, rdai, rtd,
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rsnd_dai_is_play(rdai, io) ?
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"DVC Out Ramp Up Rate" : "DVC In Ramp Up Rate",
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&dvc->rup,
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dvc_ramp_rate, ARRAY_SIZE(dvc_ramp_rate));
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if (ret < 0)
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return ret;
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ret = _rsnd_dvc_pcm_new_e(mod, rdai, rtd,
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rsnd_dai_is_play(rdai, io) ?
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"DVC Out Ramp Down Rate" : "DVC In Ramp Down Rate",
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&dvc->rdown,
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dvc_ramp_rate, ARRAY_SIZE(dvc_ramp_rate));
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if (ret < 0)
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return ret;
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return 0;
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}
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static struct rsnd_mod_ops rsnd_dvc_ops = {
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.name = DVC_NAME,
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.probe = rsnd_dvc_probe_gen2,
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.init = rsnd_dvc_init,
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.quit = rsnd_dvc_quit,
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.start = rsnd_dvc_start,
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.stop = rsnd_dvc_stop,
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.pcm_new = rsnd_dvc_pcm_new,
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};
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struct rsnd_mod *rsnd_dvc_mod_get(struct rsnd_priv *priv, int id)
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{
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if (WARN_ON(id < 0 || id >= rsnd_dvc_nr(priv)))
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id = 0;
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return &((struct rsnd_dvc *)(priv->dvc) + id)->mod;
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}
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static void rsnd_of_parse_dvc(struct platform_device *pdev,
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const struct rsnd_of_data *of_data,
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struct rsnd_priv *priv)
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{
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struct device_node *node;
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struct rsnd_dvc_platform_info *dvc_info;
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struct rcar_snd_info *info = rsnd_priv_to_info(priv);
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struct device *dev = &pdev->dev;
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int nr;
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if (!of_data)
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return;
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node = of_get_child_by_name(dev->of_node, "rcar_sound,dvc");
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if (!node)
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return;
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nr = of_get_child_count(node);
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if (!nr)
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goto rsnd_of_parse_dvc_end;
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dvc_info = devm_kzalloc(dev,
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sizeof(struct rsnd_dvc_platform_info) * nr,
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GFP_KERNEL);
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if (!dvc_info) {
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dev_err(dev, "dvc info allocation error\n");
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goto rsnd_of_parse_dvc_end;
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}
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info->dvc_info = dvc_info;
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info->dvc_info_nr = nr;
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rsnd_of_parse_dvc_end:
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of_node_put(node);
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}
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int rsnd_dvc_probe(struct platform_device *pdev,
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const struct rsnd_of_data *of_data,
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struct rsnd_priv *priv)
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{
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struct rcar_snd_info *info = rsnd_priv_to_info(priv);
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struct device *dev = rsnd_priv_to_dev(priv);
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struct rsnd_dvc *dvc;
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struct clk *clk;
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char name[RSND_DVC_NAME_SIZE];
|
|
int i, nr;
|
|
|
|
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];
|
|
dvc->clk = clk;
|
|
|
|
rsnd_mod_init(priv, &dvc->mod, &rsnd_dvc_ops, RSND_MOD_DVC, i);
|
|
|
|
dev_dbg(dev, "CMD%d probed\n", i);
|
|
}
|
|
|
|
return 0;
|
|
}
|