377 lines
8.3 KiB
C
377 lines
8.3 KiB
C
/*
|
|
* 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_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_probe_gen2(struct rsnd_mod *mod,
|
|
struct rsnd_priv *priv)
|
|
{
|
|
struct device *dev = rsnd_priv_to_dev(priv);
|
|
|
|
dev_dbg(dev, "%s[%d] (Gen2) is probed\n",
|
|
rsnd_mod_name(mod), rsnd_mod_id(mod));
|
|
|
|
return 0;
|
|
}
|
|
|
|
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 rsnd_mod_ops rsnd_dvc_ops = {
|
|
.name = DVC_NAME,
|
|
.probe = rsnd_dvc_probe_gen2,
|
|
.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;
|
|
|
|
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];
|
|
|
|
rsnd_mod_init(&dvc->mod, &rsnd_dvc_ops,
|
|
clk, RSND_MOD_DVC, i);
|
|
|
|
dev_dbg(dev, "CMD%d probed\n", i);
|
|
}
|
|
|
|
return 0;
|
|
}
|