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linux-next/sound/soc/codecs/mc13783.c
Steffen Trumtrar 9f6f0afbb9 ASoC: mc13783: add spi errata fix 
The MC13783 Chip Errata, Rev. 4 says, that depending on SPI clock
and main audio clock speed, the Audio Codec or Stereo DAC do sometimes
not start when programmed to do so. This is due to an internal clock
timing issue related to the loading of the SPI bits into the audio block.

On an i.MX27 based system, this issue lead to switched audio channels under
certain circumstances: RTC + Touch + Audio are used and loaded at startup.

The mentioned workaround of writing registers 40 and 41 two times is implemented
here.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-09-11 11:16:48 +01:00

794 lines
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/*
* Copyright 2008 Juergen Beisert, kernel@pengutronix.de
* Copyright 2009 Sascha Hauer, s.hauer@pengutronix.de
* Copyright 2012 Philippe Retornaz, philippe.retornaz@epfl.ch
*
* Initial development of this code was funded by
* Phytec Messtechnik GmbH, http://www.phytec.de
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#include <linux/module.h>
#include <linux/device.h>
#include <linux/mfd/mc13xxx.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/initval.h>
#include <sound/soc-dapm.h>
#include "mc13783.h"
#define MC13783_AUDIO_RX0 36
#define MC13783_AUDIO_RX1 37
#define MC13783_AUDIO_TX 38
#define MC13783_SSI_NETWORK 39
#define MC13783_AUDIO_CODEC 40
#define MC13783_AUDIO_DAC 41
#define AUDIO_RX0_ALSPEN (1 << 5)
#define AUDIO_RX0_ALSPSEL (1 << 7)
#define AUDIO_RX0_ADDCDC (1 << 21)
#define AUDIO_RX0_ADDSTDC (1 << 22)
#define AUDIO_RX0_ADDRXIN (1 << 23)
#define AUDIO_RX1_PGARXEN (1 << 0);
#define AUDIO_RX1_PGASTEN (1 << 5)
#define AUDIO_RX1_ARXINEN (1 << 10)
#define AUDIO_TX_AMC1REN (1 << 5)
#define AUDIO_TX_AMC1LEN (1 << 7)
#define AUDIO_TX_AMC2EN (1 << 9)
#define AUDIO_TX_ATXINEN (1 << 11)
#define AUDIO_TX_RXINREC (1 << 13)
#define SSI_NETWORK_CDCTXRXSLOT(x) (((x) & 0x3) << 2)
#define SSI_NETWORK_CDCTXSECSLOT(x) (((x) & 0x3) << 4)
#define SSI_NETWORK_CDCRXSECSLOT(x) (((x) & 0x3) << 6)
#define SSI_NETWORK_CDCRXSECGAIN(x) (((x) & 0x3) << 8)
#define SSI_NETWORK_CDCSUMGAIN(x) (1 << 10)
#define SSI_NETWORK_CDCFSDLY(x) (1 << 11)
#define SSI_NETWORK_DAC_SLOTS_8 (1 << 12)
#define SSI_NETWORK_DAC_SLOTS_4 (2 << 12)
#define SSI_NETWORK_DAC_SLOTS_2 (3 << 12)
#define SSI_NETWORK_DAC_SLOT_MASK (3 << 12)
#define SSI_NETWORK_DAC_RXSLOT_0_1 (0 << 14)
#define SSI_NETWORK_DAC_RXSLOT_2_3 (1 << 14)
#define SSI_NETWORK_DAC_RXSLOT_4_5 (2 << 14)
#define SSI_NETWORK_DAC_RXSLOT_6_7 (3 << 14)
#define SSI_NETWORK_DAC_RXSLOT_MASK (3 << 14)
#define SSI_NETWORK_STDCRXSECSLOT(x) (((x) & 0x3) << 16)
#define SSI_NETWORK_STDCRXSECGAIN(x) (((x) & 0x3) << 18)
#define SSI_NETWORK_STDCSUMGAIN (1 << 20)
/*
* MC13783_AUDIO_CODEC and MC13783_AUDIO_DAC mostly share the same
* register layout
*/
#define AUDIO_SSI_SEL (1 << 0)
#define AUDIO_CLK_SEL (1 << 1)
#define AUDIO_CSM (1 << 2)
#define AUDIO_BCL_INV (1 << 3)
#define AUDIO_CFS_INV (1 << 4)
#define AUDIO_CFS(x) (((x) & 0x3) << 5)
#define AUDIO_CLK(x) (((x) & 0x7) << 7)
#define AUDIO_C_EN (1 << 11)
#define AUDIO_C_CLK_EN (1 << 12)
#define AUDIO_C_RESET (1 << 15)
#define AUDIO_CODEC_CDCFS8K16K (1 << 10)
#define AUDIO_DAC_CFS_DLY_B (1 << 10)
struct mc13783_priv {
struct mc13xxx *mc13xxx;
enum mc13783_ssi_port adc_ssi_port;
enum mc13783_ssi_port dac_ssi_port;
};
static unsigned int mc13783_read(struct snd_soc_codec *codec,
unsigned int reg)
{
struct mc13783_priv *priv = snd_soc_codec_get_drvdata(codec);
unsigned int value = 0;
mc13xxx_lock(priv->mc13xxx);
mc13xxx_reg_read(priv->mc13xxx, reg, &value);
mc13xxx_unlock(priv->mc13xxx);
return value;
}
static int mc13783_write(struct snd_soc_codec *codec,
unsigned int reg, unsigned int value)
{
struct mc13783_priv *priv = snd_soc_codec_get_drvdata(codec);
int ret;
mc13xxx_lock(priv->mc13xxx);
ret = mc13xxx_reg_write(priv->mc13xxx, reg, value);
/* include errata fix for spi audio problems */
if (reg == MC13783_AUDIO_CODEC || reg == MC13783_AUDIO_DAC)
ret = mc13xxx_reg_write(priv->mc13xxx, reg, value);
mc13xxx_unlock(priv->mc13xxx);
return ret;
}
/* Mapping between sample rates and register value */
static unsigned int mc13783_rates[] = {
8000, 11025, 12000, 16000,
22050, 24000, 32000, 44100,
48000, 64000, 96000
};
static int mc13783_pcm_hw_params_dac(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_codec *codec = rtd->codec;
unsigned int rate = params_rate(params);
int i;
for (i = 0; i < ARRAY_SIZE(mc13783_rates); i++) {
if (rate == mc13783_rates[i]) {
snd_soc_update_bits(codec, MC13783_AUDIO_DAC,
0xf << 17, i << 17);
return 0;
}
}
return -EINVAL;
}
static int mc13783_pcm_hw_params_codec(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_codec *codec = rtd->codec;
unsigned int rate = params_rate(params);
unsigned int val;
switch (rate) {
case 8000:
val = 0;
break;
case 16000:
val = AUDIO_CODEC_CDCFS8K16K;
break;
default:
return -EINVAL;
}
snd_soc_update_bits(codec, MC13783_AUDIO_CODEC, AUDIO_CODEC_CDCFS8K16K,
val);
return 0;
}
static int mc13783_pcm_hw_params_sync(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
return mc13783_pcm_hw_params_dac(substream, params, dai);
else
return mc13783_pcm_hw_params_codec(substream, params, dai);
}
static int mc13783_set_fmt(struct snd_soc_dai *dai, unsigned int fmt,
unsigned int reg)
{
struct snd_soc_codec *codec = dai->codec;
unsigned int val = 0;
unsigned int mask = AUDIO_CFS(3) | AUDIO_BCL_INV | AUDIO_CFS_INV |
AUDIO_CSM | AUDIO_C_CLK_EN | AUDIO_C_RESET;
/* DAI mode */
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
val |= AUDIO_CFS(2);
break;
case SND_SOC_DAIFMT_DSP_A:
val |= AUDIO_CFS(1);
break;
default:
return -EINVAL;
}
/* DAI clock inversion */
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
val |= AUDIO_BCL_INV;
break;
case SND_SOC_DAIFMT_NB_IF:
val |= AUDIO_BCL_INV | AUDIO_CFS_INV;
break;
case SND_SOC_DAIFMT_IB_NF:
break;
case SND_SOC_DAIFMT_IB_IF:
val |= AUDIO_CFS_INV;
break;
}
/* DAI clock master masks */
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM:
val |= AUDIO_C_CLK_EN;
break;
case SND_SOC_DAIFMT_CBS_CFS:
val |= AUDIO_CSM;
break;
case SND_SOC_DAIFMT_CBM_CFS:
case SND_SOC_DAIFMT_CBS_CFM:
return -EINVAL;
}
val |= AUDIO_C_RESET;
snd_soc_update_bits(codec, reg, mask, val);
return 0;
}
static int mc13783_set_fmt_async(struct snd_soc_dai *dai, unsigned int fmt)
{
if (dai->id == MC13783_ID_STEREO_DAC)
return mc13783_set_fmt(dai, fmt, MC13783_AUDIO_DAC);
else
return mc13783_set_fmt(dai, fmt, MC13783_AUDIO_CODEC);
}
static int mc13783_set_fmt_sync(struct snd_soc_dai *dai, unsigned int fmt)
{
int ret;
ret = mc13783_set_fmt(dai, fmt, MC13783_AUDIO_DAC);
if (ret)
return ret;
/*
* In synchronous mode force the voice codec into slave mode
* so that the clock / framesync from the stereo DAC is used
*/
fmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
fmt |= SND_SOC_DAIFMT_CBS_CFS;
ret = mc13783_set_fmt(dai, fmt, MC13783_AUDIO_CODEC);
return ret;
}
static int mc13783_sysclk[] = {
13000000,
15360000,
16800000,
-1,
26000000,
-1, /* 12000000, invalid for voice codec */
-1, /* 3686400, invalid for voice codec */
33600000,
};
static int mc13783_set_sysclk(struct snd_soc_dai *dai,
int clk_id, unsigned int freq, int dir,
unsigned int reg)
{
struct snd_soc_codec *codec = dai->codec;
int clk;
unsigned int val = 0;
unsigned int mask = AUDIO_CLK(0x7) | AUDIO_CLK_SEL;
for (clk = 0; clk < ARRAY_SIZE(mc13783_sysclk); clk++) {
if (mc13783_sysclk[clk] < 0)
continue;
if (mc13783_sysclk[clk] == freq)
break;
}
if (clk == ARRAY_SIZE(mc13783_sysclk))
return -EINVAL;
if (clk_id == MC13783_CLK_CLIB)
val |= AUDIO_CLK_SEL;
val |= AUDIO_CLK(clk);
snd_soc_update_bits(codec, reg, mask, val);
return 0;
}
static int mc13783_set_sysclk_dac(struct snd_soc_dai *dai,
int clk_id, unsigned int freq, int dir)
{
return mc13783_set_sysclk(dai, clk_id, freq, dir, MC13783_AUDIO_DAC);
}
static int mc13783_set_sysclk_codec(struct snd_soc_dai *dai,
int clk_id, unsigned int freq, int dir)
{
return mc13783_set_sysclk(dai, clk_id, freq, dir, MC13783_AUDIO_CODEC);
}
static int mc13783_set_sysclk_sync(struct snd_soc_dai *dai,
int clk_id, unsigned int freq, int dir)
{
int ret;
ret = mc13783_set_sysclk(dai, clk_id, freq, dir, MC13783_AUDIO_DAC);
if (ret)
return ret;
return mc13783_set_sysclk(dai, clk_id, freq, dir, MC13783_AUDIO_CODEC);
}
static int mc13783_set_tdm_slot_dac(struct snd_soc_dai *dai,
unsigned int tx_mask, unsigned int rx_mask, int slots,
int slot_width)
{
struct snd_soc_codec *codec = dai->codec;
unsigned int val = 0;
unsigned int mask = SSI_NETWORK_DAC_SLOT_MASK |
SSI_NETWORK_DAC_RXSLOT_MASK;
switch (slots) {
case 2:
val |= SSI_NETWORK_DAC_SLOTS_2;
break;
case 4:
val |= SSI_NETWORK_DAC_SLOTS_4;
break;
case 8:
val |= SSI_NETWORK_DAC_SLOTS_8;
break;
default:
return -EINVAL;
}
switch (rx_mask) {
case 0xfffffffc:
val |= SSI_NETWORK_DAC_RXSLOT_0_1;
break;
case 0xfffffff3:
val |= SSI_NETWORK_DAC_RXSLOT_2_3;
break;
case 0xffffffcf:
val |= SSI_NETWORK_DAC_RXSLOT_4_5;
break;
case 0xffffff3f:
val |= SSI_NETWORK_DAC_RXSLOT_6_7;
break;
default:
return -EINVAL;
};
snd_soc_update_bits(codec, MC13783_SSI_NETWORK, mask, val);
return 0;
}
static int mc13783_set_tdm_slot_codec(struct snd_soc_dai *dai,
unsigned int tx_mask, unsigned int rx_mask, int slots,
int slot_width)
{
struct snd_soc_codec *codec = dai->codec;
unsigned int val = 0;
unsigned int mask = 0x3f;
if (slots != 4)
return -EINVAL;
if (tx_mask != 0xfffffffc)
return -EINVAL;
val |= (0x00 << 2); /* primary timeslot RX/TX(?) is 0 */
val |= (0x01 << 4); /* secondary timeslot TX is 1 */
snd_soc_update_bits(codec, MC13783_SSI_NETWORK, mask, val);
return 0;
}
static int mc13783_set_tdm_slot_sync(struct snd_soc_dai *dai,
unsigned int tx_mask, unsigned int rx_mask, int slots,
int slot_width)
{
int ret;
ret = mc13783_set_tdm_slot_dac(dai, tx_mask, rx_mask, slots,
slot_width);
if (ret)
return ret;
ret = mc13783_set_tdm_slot_codec(dai, tx_mask, rx_mask, slots,
slot_width);
return ret;
}
static const struct snd_kcontrol_new mc1l_amp_ctl =
SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_TX, 7, 1, 0);
static const struct snd_kcontrol_new mc1r_amp_ctl =
SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_TX, 5, 1, 0);
static const struct snd_kcontrol_new mc2_amp_ctl =
SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_TX, 9, 1, 0);
static const struct snd_kcontrol_new atx_amp_ctl =
SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_TX, 11, 1, 0);
/* Virtual mux. The chip does the input selection automatically
* as soon as we enable one input. */
static const char * const adcl_enum_text[] = {
"MC1L", "RXINL",
};
static const struct soc_enum adcl_enum =
SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(adcl_enum_text), adcl_enum_text);
static const struct snd_kcontrol_new left_input_mux =
SOC_DAPM_ENUM_VIRT("Route", adcl_enum);
static const char * const adcr_enum_text[] = {
"MC1R", "MC2", "RXINR", "TXIN",
};
static const struct soc_enum adcr_enum =
SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(adcr_enum_text), adcr_enum_text);
static const struct snd_kcontrol_new right_input_mux =
SOC_DAPM_ENUM_VIRT("Route", adcr_enum);
static const struct snd_kcontrol_new samp_ctl =
SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_RX0, 3, 1, 0);
static const struct snd_kcontrol_new lamp_ctl =
SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_RX0, 5, 1, 0);
static const struct snd_kcontrol_new hlamp_ctl =
SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_RX0, 10, 1, 0);
static const struct snd_kcontrol_new hramp_ctl =
SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_RX0, 9, 1, 0);
static const struct snd_kcontrol_new llamp_ctl =
SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_RX0, 16, 1, 0);
static const struct snd_kcontrol_new lramp_ctl =
SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_RX0, 15, 1, 0);
static const struct snd_soc_dapm_widget mc13783_dapm_widgets[] = {
/* Input */
SND_SOC_DAPM_INPUT("MC1LIN"),
SND_SOC_DAPM_INPUT("MC1RIN"),
SND_SOC_DAPM_INPUT("MC2IN"),
SND_SOC_DAPM_INPUT("RXINR"),
SND_SOC_DAPM_INPUT("RXINL"),
SND_SOC_DAPM_INPUT("TXIN"),
SND_SOC_DAPM_SUPPLY("MC1 Bias", MC13783_AUDIO_TX, 0, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("MC2 Bias", MC13783_AUDIO_TX, 1, 0, NULL, 0),
SND_SOC_DAPM_SWITCH("MC1L Amp", MC13783_AUDIO_TX, 7, 0, &mc1l_amp_ctl),
SND_SOC_DAPM_SWITCH("MC1R Amp", MC13783_AUDIO_TX, 5, 0, &mc1r_amp_ctl),
SND_SOC_DAPM_SWITCH("MC2 Amp", MC13783_AUDIO_TX, 9, 0, &mc2_amp_ctl),
SND_SOC_DAPM_SWITCH("TXIN Amp", MC13783_AUDIO_TX, 11, 0, &atx_amp_ctl),
SND_SOC_DAPM_VIRT_MUX("PGA Left Input Mux", SND_SOC_NOPM, 0, 0,
&left_input_mux),
SND_SOC_DAPM_VIRT_MUX("PGA Right Input Mux", SND_SOC_NOPM, 0, 0,
&right_input_mux),
SND_SOC_DAPM_PGA("PGA Left Input", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("PGA Right Input", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_ADC("ADC", "Capture", MC13783_AUDIO_CODEC, 11, 0),
SND_SOC_DAPM_SUPPLY("ADC_Reset", MC13783_AUDIO_CODEC, 15, 0, NULL, 0),
/* Output */
SND_SOC_DAPM_SUPPLY("DAC_E", MC13783_AUDIO_DAC, 11, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("DAC_Reset", MC13783_AUDIO_DAC, 15, 0, NULL, 0),
SND_SOC_DAPM_OUTPUT("RXOUTL"),
SND_SOC_DAPM_OUTPUT("RXOUTR"),
SND_SOC_DAPM_OUTPUT("HSL"),
SND_SOC_DAPM_OUTPUT("HSR"),
SND_SOC_DAPM_OUTPUT("LSP"),
SND_SOC_DAPM_OUTPUT("SP"),
SND_SOC_DAPM_SWITCH("Speaker Amp", MC13783_AUDIO_RX0, 3, 0, &samp_ctl),
SND_SOC_DAPM_SWITCH("Loudspeaker Amp", SND_SOC_NOPM, 0, 0, &lamp_ctl),
SND_SOC_DAPM_SWITCH("Headset Amp Left", MC13783_AUDIO_RX0, 10, 0,
&hlamp_ctl),
SND_SOC_DAPM_SWITCH("Headset Amp Right", MC13783_AUDIO_RX0, 9, 0,
&hramp_ctl),
SND_SOC_DAPM_SWITCH("Line out Amp Left", MC13783_AUDIO_RX0, 16, 0,
&llamp_ctl),
SND_SOC_DAPM_SWITCH("Line out Amp Right", MC13783_AUDIO_RX0, 15, 0,
&lramp_ctl),
SND_SOC_DAPM_DAC("DAC", "Playback", MC13783_AUDIO_RX0, 22, 0),
SND_SOC_DAPM_PGA("DAC PGA", MC13783_AUDIO_RX1, 5, 0, NULL, 0),
};
static struct snd_soc_dapm_route mc13783_routes[] = {
/* Input */
{ "MC1L Amp", NULL, "MC1LIN"},
{ "MC1R Amp", NULL, "MC1RIN" },
{ "MC2 Amp", NULL, "MC2IN" },
{ "TXIN Amp", NULL, "TXIN"},
{ "PGA Left Input Mux", "MC1L", "MC1L Amp" },
{ "PGA Left Input Mux", "RXINL", "RXINL"},
{ "PGA Right Input Mux", "MC1R", "MC1R Amp" },
{ "PGA Right Input Mux", "MC2", "MC2 Amp"},
{ "PGA Right Input Mux", "TXIN", "TXIN Amp"},
{ "PGA Right Input Mux", "RXINR", "RXINR"},
{ "PGA Left Input", NULL, "PGA Left Input Mux"},
{ "PGA Right Input", NULL, "PGA Right Input Mux"},
{ "ADC", NULL, "PGA Left Input"},
{ "ADC", NULL, "PGA Right Input"},
{ "ADC", NULL, "ADC_Reset"},
/* Output */
{ "HSL", NULL, "Headset Amp Left" },
{ "HSR", NULL, "Headset Amp Right"},
{ "RXOUTL", NULL, "Line out Amp Left"},
{ "RXOUTR", NULL, "Line out Amp Right"},
{ "SP", NULL, "Speaker Amp"},
{ "Speaker Amp", NULL, "DAC PGA"},
{ "LSP", NULL, "DAC PGA"},
{ "Headset Amp Left", NULL, "DAC PGA"},
{ "Headset Amp Right", NULL, "DAC PGA"},
{ "Line out Amp Left", NULL, "DAC PGA"},
{ "Line out Amp Right", NULL, "DAC PGA"},
{ "DAC PGA", NULL, "DAC"},
{ "DAC", NULL, "DAC_E"},
};
static const char * const mc13783_3d_mixer[] = {"Stereo", "Phase Mix",
"Mono", "Mono Mix"};
static const struct soc_enum mc13783_enum_3d_mixer =
SOC_ENUM_SINGLE(MC13783_AUDIO_RX1, 16, ARRAY_SIZE(mc13783_3d_mixer),
mc13783_3d_mixer);
static struct snd_kcontrol_new mc13783_control_list[] = {
SOC_SINGLE("Loudspeaker enable", MC13783_AUDIO_RX0, 5, 1, 0),
SOC_SINGLE("PCM Playback Volume", MC13783_AUDIO_RX1, 6, 15, 0),
SOC_DOUBLE("PCM Capture Volume", MC13783_AUDIO_TX, 19, 14, 31, 0),
SOC_ENUM("3D Control", mc13783_enum_3d_mixer),
};
static int mc13783_probe(struct snd_soc_codec *codec)
{
struct mc13783_priv *priv = snd_soc_codec_get_drvdata(codec);
mc13xxx_lock(priv->mc13xxx);
/* these are the reset values */
mc13xxx_reg_write(priv->mc13xxx, MC13783_AUDIO_RX0, 0x25893);
mc13xxx_reg_write(priv->mc13xxx, MC13783_AUDIO_RX1, 0x00d35A);
mc13xxx_reg_write(priv->mc13xxx, MC13783_AUDIO_TX, 0x420000);
mc13xxx_reg_write(priv->mc13xxx, MC13783_SSI_NETWORK, 0x013060);
mc13xxx_reg_write(priv->mc13xxx, MC13783_AUDIO_CODEC, 0x180027);
mc13xxx_reg_write(priv->mc13xxx, MC13783_AUDIO_DAC, 0x0e0004);
if (priv->adc_ssi_port == MC13783_SSI1_PORT)
mc13xxx_reg_rmw(priv->mc13xxx, MC13783_AUDIO_CODEC,
AUDIO_SSI_SEL, 0);
else
mc13xxx_reg_rmw(priv->mc13xxx, MC13783_AUDIO_CODEC,
0, AUDIO_SSI_SEL);
if (priv->dac_ssi_port == MC13783_SSI1_PORT)
mc13xxx_reg_rmw(priv->mc13xxx, MC13783_AUDIO_DAC,
AUDIO_SSI_SEL, 0);
else
mc13xxx_reg_rmw(priv->mc13xxx, MC13783_AUDIO_DAC,
0, AUDIO_SSI_SEL);
mc13xxx_unlock(priv->mc13xxx);
return 0;
}
static int mc13783_remove(struct snd_soc_codec *codec)
{
struct mc13783_priv *priv = snd_soc_codec_get_drvdata(codec);
mc13xxx_lock(priv->mc13xxx);
/* Make sure VAUDIOON is off */
mc13xxx_reg_rmw(priv->mc13xxx, MC13783_AUDIO_RX0, 0x3, 0);
mc13xxx_unlock(priv->mc13xxx);
return 0;
}
#define MC13783_RATES_RECORD (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000)
#define MC13783_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
SNDRV_PCM_FMTBIT_S24_LE)
static struct snd_soc_dai_ops mc13783_ops_dac = {
.hw_params = mc13783_pcm_hw_params_dac,
.set_fmt = mc13783_set_fmt_async,
.set_sysclk = mc13783_set_sysclk_dac,
.set_tdm_slot = mc13783_set_tdm_slot_dac,
};
static struct snd_soc_dai_ops mc13783_ops_codec = {
.hw_params = mc13783_pcm_hw_params_codec,
.set_fmt = mc13783_set_fmt_async,
.set_sysclk = mc13783_set_sysclk_codec,
.set_tdm_slot = mc13783_set_tdm_slot_codec,
};
/*
* The mc13783 has two SSI ports, both of them can be routed either
* to the voice codec or the stereo DAC. When two different SSI ports
* are used for the voice codec and the stereo DAC we can do different
* formats and sysclock settings for playback and capture
* (mc13783-hifi-playback and mc13783-hifi-capture). Using the same port
* forces us to use symmetric rates (mc13783-hifi).
*/
static struct snd_soc_dai_driver mc13783_dai_async[] = {
{
.name = "mc13783-hifi-playback",
.id = MC13783_ID_STEREO_DAC,
.playback = {
.stream_name = "Playback",
.channels_min = 2,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_96000,
.formats = MC13783_FORMATS,
},
.ops = &mc13783_ops_dac,
}, {
.name = "mc13783-hifi-capture",
.id = MC13783_ID_STEREO_CODEC,
.capture = {
.stream_name = "Capture",
.channels_min = 2,
.channels_max = 2,
.rates = MC13783_RATES_RECORD,
.formats = MC13783_FORMATS,
},
.ops = &mc13783_ops_codec,
},
};
static struct snd_soc_dai_ops mc13783_ops_sync = {
.hw_params = mc13783_pcm_hw_params_sync,
.set_fmt = mc13783_set_fmt_sync,
.set_sysclk = mc13783_set_sysclk_sync,
.set_tdm_slot = mc13783_set_tdm_slot_sync,
};
static struct snd_soc_dai_driver mc13783_dai_sync[] = {
{
.name = "mc13783-hifi",
.id = MC13783_ID_SYNC,
.playback = {
.stream_name = "Playback",
.channels_min = 2,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_96000,
.formats = MC13783_FORMATS,
},
.capture = {
.stream_name = "Capture",
.channels_min = 2,
.channels_max = 2,
.rates = MC13783_RATES_RECORD,
.formats = MC13783_FORMATS,
},
.ops = &mc13783_ops_sync,
.symmetric_rates = 1,
}
};
static struct snd_soc_codec_driver soc_codec_dev_mc13783 = {
.probe = mc13783_probe,
.remove = mc13783_remove,
.read = mc13783_read,
.write = mc13783_write,
.controls = mc13783_control_list,
.num_controls = ARRAY_SIZE(mc13783_control_list),
.dapm_widgets = mc13783_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(mc13783_dapm_widgets),
.dapm_routes = mc13783_routes,
.num_dapm_routes = ARRAY_SIZE(mc13783_routes),
};
static int mc13783_codec_probe(struct platform_device *pdev)
{
struct mc13xxx *mc13xxx;
struct mc13783_priv *priv;
struct mc13xxx_codec_platform_data *pdata = pdev->dev.platform_data;
int ret;
mc13xxx = dev_get_drvdata(pdev->dev.parent);
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (priv == NULL)
return -ENOMEM;
dev_set_drvdata(&pdev->dev, priv);
priv->mc13xxx = mc13xxx;
if (pdata) {
priv->adc_ssi_port = pdata->adc_ssi_port;
priv->dac_ssi_port = pdata->dac_ssi_port;
} else {
priv->adc_ssi_port = MC13783_SSI1_PORT;
priv->dac_ssi_port = MC13783_SSI2_PORT;
}
if (priv->adc_ssi_port == priv->dac_ssi_port)
ret = snd_soc_register_codec(&pdev->dev, &soc_codec_dev_mc13783,
mc13783_dai_sync, ARRAY_SIZE(mc13783_dai_sync));
else
ret = snd_soc_register_codec(&pdev->dev, &soc_codec_dev_mc13783,
mc13783_dai_async, ARRAY_SIZE(mc13783_dai_async));
if (ret)
goto err_register_codec;
return 0;
err_register_codec:
dev_err(&pdev->dev, "register codec failed with %d\n", ret);
return ret;
}
static int mc13783_codec_remove(struct platform_device *pdev)
{
snd_soc_unregister_codec(&pdev->dev);
return 0;
}
static struct platform_driver mc13783_codec_driver = {
.driver = {
.name = "mc13783-codec",
.owner = THIS_MODULE,
},
.probe = mc13783_codec_probe,
.remove = mc13783_codec_remove,
};
module_platform_driver(mc13783_codec_driver);
MODULE_DESCRIPTION("ASoC MC13783 driver");
MODULE_AUTHOR("Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>");
MODULE_AUTHOR("Philippe Retornaz <philippe.retornaz@epfl.ch>");
MODULE_LICENSE("GPL");
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