2008-09-05 10:09:57 +00:00
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/*
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* File: sound/soc/codecs/ssm2602.c
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* Author: Cliff Cai <Cliff.Cai@analog.com>
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*
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* Created: Tue June 06 2008
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* Description: Driver for ssm2602 sound chip
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*
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* Modified:
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* Copyright 2008 Analog Devices Inc.
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*
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* Bugs: Enter bugs at http://blackfin.uclinux.org/
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see the file COPYING, or write
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* to the Free Software Foundation, Inc.,
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/pm.h>
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#include <linux/i2c.h>
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#include <linux/platform_device.h>
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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 08:04:11 +00:00
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#include <linux/slab.h>
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2008-09-05 10:09:57 +00:00
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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#include <sound/initval.h>
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#include "ssm2602.h"
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#define SSM2602_VERSION "0.1"
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/* codec private data */
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struct ssm2602_priv {
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unsigned int sysclk;
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2010-03-17 20:15:21 +00:00
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enum snd_soc_control_type control_type;
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void *control_data;
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2008-09-05 10:09:57 +00:00
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struct snd_pcm_substream *master_substream;
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struct snd_pcm_substream *slave_substream;
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};
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/*
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* ssm2602 register cache
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* We can't read the ssm2602 register space when we are
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* using 2 wire for device control, so we cache them instead.
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* There is no point in caching the reset register
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*/
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static const u16 ssm2602_reg[SSM2602_CACHEREGNUM] = {
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0x0017, 0x0017, 0x0079, 0x0079,
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0x0000, 0x0000, 0x0000, 0x000a,
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0x0000, 0x0000
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};
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/*
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* read ssm2602 register cache
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*/
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static inline unsigned int ssm2602_read_reg_cache(struct snd_soc_codec *codec,
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unsigned int reg)
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{
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u16 *cache = codec->reg_cache;
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if (reg == SSM2602_RESET)
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return 0;
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if (reg >= SSM2602_CACHEREGNUM)
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return -1;
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return cache[reg];
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}
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/*
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* write ssm2602 register cache
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*/
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static inline void ssm2602_write_reg_cache(struct snd_soc_codec *codec,
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u16 reg, unsigned int value)
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{
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u16 *cache = codec->reg_cache;
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if (reg >= SSM2602_CACHEREGNUM)
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return;
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cache[reg] = value;
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}
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/*
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* write to the ssm2602 register space
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*/
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static int ssm2602_write(struct snd_soc_codec *codec, unsigned int reg,
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unsigned int value)
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{
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u8 data[2];
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/* data is
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* D15..D9 ssm2602 register offset
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* D8...D0 register data
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*/
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data[0] = (reg << 1) | ((value >> 8) & 0x0001);
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data[1] = value & 0x00ff;
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ssm2602_write_reg_cache(codec, reg, value);
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if (codec->hw_write(codec->control_data, data, 2) == 2)
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return 0;
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else
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return -EIO;
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}
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#define ssm2602_reset(c) ssm2602_write(c, SSM2602_RESET, 0)
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/*Appending several "None"s just for OSS mixer use*/
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static const char *ssm2602_input_select[] = {
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"Line", "Mic", "None", "None", "None",
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"None", "None", "None",
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};
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static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
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static const struct soc_enum ssm2602_enum[] = {
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SOC_ENUM_SINGLE(SSM2602_APANA, 2, 2, ssm2602_input_select),
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SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, 4, ssm2602_deemph),
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};
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static const struct snd_kcontrol_new ssm2602_snd_controls[] = {
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SOC_DOUBLE_R("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V,
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0, 127, 0),
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SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V,
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7, 1, 0),
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SOC_DOUBLE_R("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 31, 0),
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SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1),
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SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0),
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2010-03-09 17:58:09 +00:00
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SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 7, 1, 0),
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2008-09-05 10:09:57 +00:00
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SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1),
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SOC_SINGLE("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1),
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SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1),
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SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0),
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SOC_ENUM("Capture Source", ssm2602_enum[0]),
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SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]),
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};
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/* Output Mixer */
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static const struct snd_kcontrol_new ssm2602_output_mixer_controls[] = {
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SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0),
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SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0),
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SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0),
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};
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/* Input mux */
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static const struct snd_kcontrol_new ssm2602_input_mux_controls =
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SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]);
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static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = {
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SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1,
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&ssm2602_output_mixer_controls[0],
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ARRAY_SIZE(ssm2602_output_mixer_controls)),
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SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1),
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SND_SOC_DAPM_OUTPUT("LOUT"),
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SND_SOC_DAPM_OUTPUT("LHPOUT"),
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SND_SOC_DAPM_OUTPUT("ROUT"),
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SND_SOC_DAPM_OUTPUT("RHPOUT"),
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SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1),
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SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls),
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SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0),
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SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1),
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SND_SOC_DAPM_INPUT("MICIN"),
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SND_SOC_DAPM_INPUT("RLINEIN"),
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SND_SOC_DAPM_INPUT("LLINEIN"),
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};
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static const struct snd_soc_dapm_route audio_conn[] = {
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/* output mixer */
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{"Output Mixer", "Line Bypass Switch", "Line Input"},
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{"Output Mixer", "HiFi Playback Switch", "DAC"},
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{"Output Mixer", "Mic Sidetone Switch", "Mic Bias"},
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/* outputs */
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{"RHPOUT", NULL, "Output Mixer"},
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{"ROUT", NULL, "Output Mixer"},
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{"LHPOUT", NULL, "Output Mixer"},
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{"LOUT", NULL, "Output Mixer"},
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/* input mux */
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{"Input Mux", "Line", "Line Input"},
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{"Input Mux", "Mic", "Mic Bias"},
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{"ADC", NULL, "Input Mux"},
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/* inputs */
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{"Line Input", NULL, "LLINEIN"},
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{"Line Input", NULL, "RLINEIN"},
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{"Mic Bias", NULL, "MICIN"},
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};
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static int ssm2602_add_widgets(struct snd_soc_codec *codec)
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{
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snd_soc_dapm_new_controls(codec, ssm2602_dapm_widgets,
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ARRAY_SIZE(ssm2602_dapm_widgets));
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snd_soc_dapm_add_routes(codec, audio_conn, ARRAY_SIZE(audio_conn));
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return 0;
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}
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struct _coeff_div {
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u32 mclk;
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u32 rate;
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u16 fs;
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u8 sr:4;
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u8 bosr:1;
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u8 usb:1;
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};
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/* codec mclk clock divider coefficients */
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static const struct _coeff_div coeff_div[] = {
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/* 48k */
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{12288000, 48000, 256, 0x0, 0x0, 0x0},
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{18432000, 48000, 384, 0x0, 0x1, 0x0},
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{12000000, 48000, 250, 0x0, 0x0, 0x1},
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/* 32k */
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{12288000, 32000, 384, 0x6, 0x0, 0x0},
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{18432000, 32000, 576, 0x6, 0x1, 0x0},
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{12000000, 32000, 375, 0x6, 0x0, 0x1},
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/* 8k */
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{12288000, 8000, 1536, 0x3, 0x0, 0x0},
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{18432000, 8000, 2304, 0x3, 0x1, 0x0},
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{11289600, 8000, 1408, 0xb, 0x0, 0x0},
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{16934400, 8000, 2112, 0xb, 0x1, 0x0},
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{12000000, 8000, 1500, 0x3, 0x0, 0x1},
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/* 96k */
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{12288000, 96000, 128, 0x7, 0x0, 0x0},
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{18432000, 96000, 192, 0x7, 0x1, 0x0},
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{12000000, 96000, 125, 0x7, 0x0, 0x1},
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/* 44.1k */
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{11289600, 44100, 256, 0x8, 0x0, 0x0},
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{16934400, 44100, 384, 0x8, 0x1, 0x0},
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{12000000, 44100, 272, 0x8, 0x1, 0x1},
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/* 88.2k */
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|
|
{11289600, 88200, 128, 0xf, 0x0, 0x0},
|
|
|
|
|
{16934400, 88200, 192, 0xf, 0x1, 0x0},
|
|
|
|
|
{12000000, 88200, 136, 0xf, 0x1, 0x1},
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static inline int get_coeff(int mclk, int rate)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
|
|
|
|
|
if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
|
|
|
|
|
return i;
|
|
|
|
|
}
|
|
|
|
|
return i;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int ssm2602_hw_params(struct snd_pcm_substream *substream,
|
2008-11-18 22:11:38 +00:00
|
|
|
struct snd_pcm_hw_params *params,
|
|
|
|
|
struct snd_soc_dai *dai)
|
2008-09-05 10:09:57 +00:00
|
|
|
{
|
|
|
|
|
u16 srate;
|
|
|
|
|
struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
2010-03-17 20:15:21 +00:00
|
|
|
struct snd_soc_codec *codec = rtd->codec;
|
2010-04-14 06:35:19 +00:00
|
|
|
struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
|
2008-11-20 14:39:27 +00:00
|
|
|
struct i2c_client *i2c = codec->control_data;
|
2008-09-05 10:09:57 +00:00
|
|
|
u16 iface = ssm2602_read_reg_cache(codec, SSM2602_IFACE) & 0xfff3;
|
|
|
|
|
int i = get_coeff(ssm2602->sysclk, params_rate(params));
|
|
|
|
|
|
2008-11-20 14:39:27 +00:00
|
|
|
if (substream == ssm2602->slave_substream) {
|
|
|
|
|
dev_dbg(&i2c->dev, "Ignoring hw_params for slave substream\n");
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2008-09-05 10:09:57 +00:00
|
|
|
/*no match is found*/
|
|
|
|
|
if (i == ARRAY_SIZE(coeff_div))
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
|
|
srate = (coeff_div[i].sr << 2) |
|
|
|
|
|
(coeff_div[i].bosr << 1) | coeff_div[i].usb;
|
|
|
|
|
|
|
|
|
|
ssm2602_write(codec, SSM2602_ACTIVE, 0);
|
|
|
|
|
ssm2602_write(codec, SSM2602_SRATE, srate);
|
|
|
|
|
|
|
|
|
|
/* bit size */
|
|
|
|
|
switch (params_format(params)) {
|
|
|
|
|
case SNDRV_PCM_FORMAT_S16_LE:
|
|
|
|
|
break;
|
|
|
|
|
case SNDRV_PCM_FORMAT_S20_3LE:
|
|
|
|
|
iface |= 0x0004;
|
|
|
|
|
break;
|
|
|
|
|
case SNDRV_PCM_FORMAT_S24_LE:
|
|
|
|
|
iface |= 0x0008;
|
|
|
|
|
break;
|
|
|
|
|
case SNDRV_PCM_FORMAT_S32_LE:
|
|
|
|
|
iface |= 0x000c;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
ssm2602_write(codec, SSM2602_IFACE, iface);
|
|
|
|
|
ssm2602_write(codec, SSM2602_ACTIVE, ACTIVE_ACTIVATE_CODEC);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2008-11-18 22:11:38 +00:00
|
|
|
static int ssm2602_startup(struct snd_pcm_substream *substream,
|
|
|
|
|
struct snd_soc_dai *dai)
|
2008-09-05 10:09:57 +00:00
|
|
|
{
|
|
|
|
|
struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
2010-03-17 20:15:21 +00:00
|
|
|
struct snd_soc_codec *codec = rtd->codec;
|
2010-04-14 06:35:19 +00:00
|
|
|
struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
|
2008-11-20 14:39:27 +00:00
|
|
|
struct i2c_client *i2c = codec->control_data;
|
2008-09-05 10:09:57 +00:00
|
|
|
struct snd_pcm_runtime *master_runtime;
|
|
|
|
|
|
|
|
|
|
/* The DAI has shared clocks so if we already have a playback or
|
|
|
|
|
* capture going then constrain this substream to match it.
|
2008-11-20 14:39:27 +00:00
|
|
|
* TODO: the ssm2602 allows pairs of non-matching PB/REC rates
|
2008-09-05 10:09:57 +00:00
|
|
|
*/
|
|
|
|
|
if (ssm2602->master_substream) {
|
|
|
|
|
master_runtime = ssm2602->master_substream->runtime;
|
2008-11-20 14:39:27 +00:00
|
|
|
dev_dbg(&i2c->dev, "Constraining to %d bits at %dHz\n",
|
|
|
|
|
master_runtime->sample_bits,
|
|
|
|
|
master_runtime->rate);
|
|
|
|
|
|
2009-06-02 04:18:54 +00:00
|
|
|
if (master_runtime->rate != 0)
|
|
|
|
|
snd_pcm_hw_constraint_minmax(substream->runtime,
|
|
|
|
|
SNDRV_PCM_HW_PARAM_RATE,
|
|
|
|
|
master_runtime->rate,
|
|
|
|
|
master_runtime->rate);
|
|
|
|
|
|
|
|
|
|
if (master_runtime->sample_bits != 0)
|
|
|
|
|
snd_pcm_hw_constraint_minmax(substream->runtime,
|
|
|
|
|
SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
|
|
|
|
|
master_runtime->sample_bits,
|
|
|
|
|
master_runtime->sample_bits);
|
2008-09-05 10:09:57 +00:00
|
|
|
|
|
|
|
|
ssm2602->slave_substream = substream;
|
|
|
|
|
} else
|
|
|
|
|
ssm2602->master_substream = substream;
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2008-11-18 22:11:38 +00:00
|
|
|
static int ssm2602_pcm_prepare(struct snd_pcm_substream *substream,
|
|
|
|
|
struct snd_soc_dai *dai)
|
2008-09-05 10:09:57 +00:00
|
|
|
{
|
|
|
|
|
struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
2010-03-17 20:15:21 +00:00
|
|
|
struct snd_soc_codec *codec = rtd->codec;
|
2008-09-05 10:09:57 +00:00
|
|
|
/* set active */
|
|
|
|
|
ssm2602_write(codec, SSM2602_ACTIVE, ACTIVE_ACTIVATE_CODEC);
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2008-11-18 22:11:38 +00:00
|
|
|
static void ssm2602_shutdown(struct snd_pcm_substream *substream,
|
|
|
|
|
struct snd_soc_dai *dai)
|
2008-09-05 10:09:57 +00:00
|
|
|
{
|
|
|
|
|
struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
2010-03-17 20:15:21 +00:00
|
|
|
struct snd_soc_codec *codec = rtd->codec;
|
2010-04-14 06:35:19 +00:00
|
|
|
struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
|
2009-06-02 04:18:54 +00:00
|
|
|
|
2008-09-05 10:09:57 +00:00
|
|
|
/* deactivate */
|
|
|
|
|
if (!codec->active)
|
|
|
|
|
ssm2602_write(codec, SSM2602_ACTIVE, 0);
|
2008-11-20 14:39:27 +00:00
|
|
|
|
|
|
|
|
if (ssm2602->master_substream == substream)
|
|
|
|
|
ssm2602->master_substream = ssm2602->slave_substream;
|
|
|
|
|
|
|
|
|
|
ssm2602->slave_substream = NULL;
|
2008-09-05 10:09:57 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int ssm2602_mute(struct snd_soc_dai *dai, int mute)
|
|
|
|
|
{
|
|
|
|
|
struct snd_soc_codec *codec = dai->codec;
|
|
|
|
|
u16 mute_reg = ssm2602_read_reg_cache(codec, SSM2602_APDIGI) & ~APDIGI_ENABLE_DAC_MUTE;
|
|
|
|
|
if (mute)
|
|
|
|
|
ssm2602_write(codec, SSM2602_APDIGI,
|
|
|
|
|
mute_reg | APDIGI_ENABLE_DAC_MUTE);
|
|
|
|
|
else
|
|
|
|
|
ssm2602_write(codec, SSM2602_APDIGI, mute_reg);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai,
|
|
|
|
|
int clk_id, unsigned int freq, int dir)
|
|
|
|
|
{
|
|
|
|
|
struct snd_soc_codec *codec = codec_dai->codec;
|
2010-04-14 06:35:19 +00:00
|
|
|
struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
|
2008-09-05 10:09:57 +00:00
|
|
|
switch (freq) {
|
|
|
|
|
case 11289600:
|
|
|
|
|
case 12000000:
|
|
|
|
|
case 12288000:
|
|
|
|
|
case 16934400:
|
|
|
|
|
case 18432000:
|
|
|
|
|
ssm2602->sysclk = freq;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai,
|
|
|
|
|
unsigned int fmt)
|
|
|
|
|
{
|
|
|
|
|
struct snd_soc_codec *codec = codec_dai->codec;
|
|
|
|
|
u16 iface = 0;
|
|
|
|
|
|
|
|
|
|
/* set master/slave audio interface */
|
|
|
|
|
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
|
|
|
|
|
case SND_SOC_DAIFMT_CBM_CFM:
|
|
|
|
|
iface |= 0x0040;
|
|
|
|
|
break;
|
|
|
|
|
case SND_SOC_DAIFMT_CBS_CFS:
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* interface format */
|
|
|
|
|
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
|
|
|
|
|
case SND_SOC_DAIFMT_I2S:
|
|
|
|
|
iface |= 0x0002;
|
|
|
|
|
break;
|
|
|
|
|
case SND_SOC_DAIFMT_RIGHT_J:
|
|
|
|
|
break;
|
|
|
|
|
case SND_SOC_DAIFMT_LEFT_J:
|
|
|
|
|
iface |= 0x0001;
|
|
|
|
|
break;
|
|
|
|
|
case SND_SOC_DAIFMT_DSP_A:
|
2008-12-22 08:57:33 +00:00
|
|
|
iface |= 0x0013;
|
2008-09-05 10:09:57 +00:00
|
|
|
break;
|
|
|
|
|
case SND_SOC_DAIFMT_DSP_B:
|
2008-12-22 08:57:33 +00:00
|
|
|
iface |= 0x0003;
|
2008-09-05 10:09:57 +00:00
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* clock inversion */
|
|
|
|
|
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
|
|
|
|
|
case SND_SOC_DAIFMT_NB_NF:
|
|
|
|
|
break;
|
|
|
|
|
case SND_SOC_DAIFMT_IB_IF:
|
|
|
|
|
iface |= 0x0090;
|
|
|
|
|
break;
|
|
|
|
|
case SND_SOC_DAIFMT_IB_NF:
|
|
|
|
|
iface |= 0x0080;
|
|
|
|
|
break;
|
|
|
|
|
case SND_SOC_DAIFMT_NB_IF:
|
|
|
|
|
iface |= 0x0010;
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* set iface */
|
|
|
|
|
ssm2602_write(codec, SSM2602_IFACE, iface);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int ssm2602_set_bias_level(struct snd_soc_codec *codec,
|
|
|
|
|
enum snd_soc_bias_level level)
|
|
|
|
|
{
|
|
|
|
|
u16 reg = ssm2602_read_reg_cache(codec, SSM2602_PWR) & 0xff7f;
|
|
|
|
|
|
|
|
|
|
switch (level) {
|
|
|
|
|
case SND_SOC_BIAS_ON:
|
|
|
|
|
/* vref/mid, osc on, dac unmute */
|
|
|
|
|
ssm2602_write(codec, SSM2602_PWR, reg);
|
|
|
|
|
break;
|
|
|
|
|
case SND_SOC_BIAS_PREPARE:
|
|
|
|
|
break;
|
|
|
|
|
case SND_SOC_BIAS_STANDBY:
|
|
|
|
|
/* everything off except vref/vmid, */
|
|
|
|
|
ssm2602_write(codec, SSM2602_PWR, reg | PWR_CLK_OUT_PDN);
|
|
|
|
|
break;
|
|
|
|
|
case SND_SOC_BIAS_OFF:
|
|
|
|
|
/* everything off, dac mute, inactive */
|
|
|
|
|
ssm2602_write(codec, SSM2602_ACTIVE, 0);
|
|
|
|
|
ssm2602_write(codec, SSM2602_PWR, 0xffff);
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
codec->bias_level = level;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2009-06-02 04:18:53 +00:00
|
|
|
#define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_32000 |\
|
|
|
|
|
SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
|
|
|
|
|
SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
|
2008-09-05 10:09:57 +00:00
|
|
|
|
2008-11-20 14:39:31 +00:00
|
|
|
#define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
|
|
|
|
|
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
|
|
|
|
|
|
2009-03-03 01:41:00 +00:00
|
|
|
static struct snd_soc_dai_ops ssm2602_dai_ops = {
|
|
|
|
|
.startup = ssm2602_startup,
|
|
|
|
|
.prepare = ssm2602_pcm_prepare,
|
|
|
|
|
.hw_params = ssm2602_hw_params,
|
|
|
|
|
.shutdown = ssm2602_shutdown,
|
|
|
|
|
.digital_mute = ssm2602_mute,
|
|
|
|
|
.set_sysclk = ssm2602_set_dai_sysclk,
|
|
|
|
|
.set_fmt = ssm2602_set_dai_fmt,
|
|
|
|
|
};
|
|
|
|
|
|
2010-03-17 20:15:21 +00:00
|
|
|
static struct snd_soc_dai_driver ssm2602_dai = {
|
|
|
|
|
.name = "ssm2602-hifi",
|
2008-09-05 10:09:57 +00:00
|
|
|
.playback = {
|
|
|
|
|
.stream_name = "Playback",
|
|
|
|
|
.channels_min = 2,
|
|
|
|
|
.channels_max = 2,
|
|
|
|
|
.rates = SSM2602_RATES,
|
2008-11-20 14:39:31 +00:00
|
|
|
.formats = SSM2602_FORMATS,},
|
2008-09-05 10:09:57 +00:00
|
|
|
.capture = {
|
|
|
|
|
.stream_name = "Capture",
|
|
|
|
|
.channels_min = 2,
|
|
|
|
|
.channels_max = 2,
|
|
|
|
|
.rates = SSM2602_RATES,
|
2008-11-20 14:39:31 +00:00
|
|
|
.formats = SSM2602_FORMATS,},
|
2009-03-03 01:41:00 +00:00
|
|
|
.ops = &ssm2602_dai_ops,
|
2008-09-05 10:09:57 +00:00
|
|
|
};
|
|
|
|
|
|
2010-03-17 20:15:21 +00:00
|
|
|
static int ssm2602_suspend(struct snd_soc_codec *codec, pm_message_t state)
|
2008-09-05 10:09:57 +00:00
|
|
|
{
|
|
|
|
|
ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2010-03-17 20:15:21 +00:00
|
|
|
static int ssm2602_resume(struct snd_soc_codec *codec)
|
2008-09-05 10:09:57 +00:00
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
u8 data[2];
|
|
|
|
|
u16 *cache = codec->reg_cache;
|
|
|
|
|
|
|
|
|
|
/* Sync reg_cache with the hardware */
|
|
|
|
|
for (i = 0; i < ARRAY_SIZE(ssm2602_reg); i++) {
|
|
|
|
|
data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
|
|
|
|
|
data[1] = cache[i] & 0x00ff;
|
|
|
|
|
codec->hw_write(codec->control_data, data, 2);
|
|
|
|
|
}
|
|
|
|
|
ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2010-03-17 20:15:21 +00:00
|
|
|
static int ssm2602_probe(struct snd_soc_codec *codec)
|
2008-09-05 10:09:57 +00:00
|
|
|
{
|
2010-03-17 20:15:21 +00:00
|
|
|
struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
|
|
|
|
|
int ret = 0, reg;
|
|
|
|
|
|
|
|
|
|
pr_info("ssm2602 Audio Codec %s", SSM2602_VERSION);
|
|
|
|
|
|
|
|
|
|
codec->control_data = ssm2602->control_data;
|
2008-09-05 10:09:57 +00:00
|
|
|
|
|
|
|
|
ssm2602_reset(codec);
|
|
|
|
|
|
|
|
|
|
/*power on device*/
|
|
|
|
|
ssm2602_write(codec, SSM2602_ACTIVE, 0);
|
|
|
|
|
/* set the update bits */
|
|
|
|
|
reg = ssm2602_read_reg_cache(codec, SSM2602_LINVOL);
|
|
|
|
|
ssm2602_write(codec, SSM2602_LINVOL, reg | LINVOL_LRIN_BOTH);
|
|
|
|
|
reg = ssm2602_read_reg_cache(codec, SSM2602_RINVOL);
|
|
|
|
|
ssm2602_write(codec, SSM2602_RINVOL, reg | RINVOL_RLIN_BOTH);
|
|
|
|
|
reg = ssm2602_read_reg_cache(codec, SSM2602_LOUT1V);
|
|
|
|
|
ssm2602_write(codec, SSM2602_LOUT1V, reg | LOUT1V_LRHP_BOTH);
|
|
|
|
|
reg = ssm2602_read_reg_cache(codec, SSM2602_ROUT1V);
|
|
|
|
|
ssm2602_write(codec, SSM2602_ROUT1V, reg | ROUT1V_RLHP_BOTH);
|
|
|
|
|
/*select Line in as default input*/
|
2010-03-09 17:58:09 +00:00
|
|
|
ssm2602_write(codec, SSM2602_APANA, APANA_SELECT_DAC |
|
2008-09-05 10:09:57 +00:00
|
|
|
APANA_ENABLE_MIC_BOOST);
|
|
|
|
|
ssm2602_write(codec, SSM2602_PWR, 0);
|
|
|
|
|
|
2009-01-09 00:23:21 +00:00
|
|
|
snd_soc_add_controls(codec, ssm2602_snd_controls,
|
|
|
|
|
ARRAY_SIZE(ssm2602_snd_controls));
|
2008-09-05 10:09:57 +00:00
|
|
|
ssm2602_add_widgets(codec);
|
|
|
|
|
|
|
|
|
|
return ret;
|
2010-03-17 20:15:21 +00:00
|
|
|
}
|
2008-09-05 10:09:57 +00:00
|
|
|
|
2010-03-17 20:15:21 +00:00
|
|
|
/* remove everything here */
|
|
|
|
|
static int ssm2602_remove(struct snd_soc_codec *codec)
|
|
|
|
|
{
|
|
|
|
|
ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF);
|
|
|
|
|
return 0;
|
2008-09-05 10:09:57 +00:00
|
|
|
}
|
|
|
|
|
|
2010-03-17 20:15:21 +00:00
|
|
|
static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = {
|
|
|
|
|
.probe = ssm2602_probe,
|
|
|
|
|
.remove = ssm2602_remove,
|
|
|
|
|
.suspend = ssm2602_suspend,
|
|
|
|
|
.resume = ssm2602_resume,
|
|
|
|
|
.read = ssm2602_read_reg_cache,
|
|
|
|
|
.write = ssm2602_write,
|
|
|
|
|
.set_bias_level = ssm2602_set_bias_level,
|
|
|
|
|
.reg_cache_size = sizeof(ssm2602_reg),
|
|
|
|
|
.reg_word_size = sizeof(u16),
|
|
|
|
|
.reg_cache_default = ssm2602_reg,
|
|
|
|
|
};
|
2008-09-05 10:09:57 +00:00
|
|
|
|
|
|
|
|
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
|
|
|
|
|
/*
|
|
|
|
|
* ssm2602 2 wire address is determined by GPIO5
|
|
|
|
|
* state during powerup.
|
|
|
|
|
* low = 0x1a
|
|
|
|
|
* high = 0x1b
|
|
|
|
|
*/
|
|
|
|
|
static int ssm2602_i2c_probe(struct i2c_client *i2c,
|
|
|
|
|
const struct i2c_device_id *id)
|
|
|
|
|
{
|
2010-03-17 20:15:21 +00:00
|
|
|
struct ssm2602_priv *ssm2602;
|
2008-09-05 10:09:57 +00:00
|
|
|
int ret;
|
|
|
|
|
|
2010-03-17 20:15:21 +00:00
|
|
|
ssm2602 = kzalloc(sizeof(struct ssm2602_priv), GFP_KERNEL);
|
|
|
|
|
if (ssm2602 == NULL)
|
|
|
|
|
return -ENOMEM;
|
2008-09-05 10:09:57 +00:00
|
|
|
|
2010-03-17 20:15:21 +00:00
|
|
|
i2c_set_clientdata(i2c, ssm2602);
|
|
|
|
|
ssm2602->control_data = i2c;
|
|
|
|
|
ssm2602->control_type = SND_SOC_I2C;
|
2008-09-05 10:09:57 +00:00
|
|
|
|
2010-03-17 20:15:21 +00:00
|
|
|
ret = snd_soc_register_codec(&i2c->dev,
|
|
|
|
|
&soc_codec_dev_ssm2602, &ssm2602_dai, 1);
|
|
|
|
|
if (ret < 0)
|
|
|
|
|
kfree(ssm2602);
|
2008-09-05 10:09:57 +00:00
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int ssm2602_i2c_remove(struct i2c_client *client)
|
|
|
|
|
{
|
2010-03-17 20:15:21 +00:00
|
|
|
snd_soc_unregister_codec(&client->dev);
|
|
|
|
|
kfree(i2c_get_clientdata(client));
|
2008-09-05 10:09:57 +00:00
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static const struct i2c_device_id ssm2602_i2c_id[] = {
|
|
|
|
|
{ "ssm2602", 0 },
|
|
|
|
|
{ }
|
|
|
|
|
};
|
|
|
|
|
MODULE_DEVICE_TABLE(i2c, ssm2602_i2c_id);
|
2010-03-17 20:15:21 +00:00
|
|
|
|
2008-09-05 10:09:57 +00:00
|
|
|
/* corgi i2c codec control layer */
|
|
|
|
|
static struct i2c_driver ssm2602_i2c_driver = {
|
|
|
|
|
.driver = {
|
2010-03-17 20:15:21 +00:00
|
|
|
.name = "ssm2602-codec",
|
2008-09-05 10:09:57 +00:00
|
|
|
.owner = THIS_MODULE,
|
|
|
|
|
},
|
|
|
|
|
.probe = ssm2602_i2c_probe,
|
|
|
|
|
.remove = ssm2602_i2c_remove,
|
|
|
|
|
.id_table = ssm2602_i2c_id,
|
|
|
|
|
};
|
|
|
|
|
#endif
|
|
|
|
|
|
2010-03-17 20:15:21 +00:00
|
|
|
|
|
|
|
|
static int __init ssm2602_modinit(void)
|
2008-09-05 10:09:57 +00:00
|
|
|
{
|
|
|
|
|
int ret = 0;
|
|
|
|
|
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
|
2010-03-17 20:15:21 +00:00
|
|
|
ret = i2c_add_driver(&ssm2602_i2c_driver);
|
|
|
|
|
if (ret != 0) {
|
|
|
|
|
printk(KERN_ERR "Failed to register SSM2602 I2C driver: %d\n",
|
|
|
|
|
ret);
|
2008-09-05 10:09:57 +00:00
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
2010-03-17 20:15:21 +00:00
|
|
|
module_init(ssm2602_modinit);
|
2008-09-05 10:09:57 +00:00
|
|
|
|
2010-03-17 20:15:21 +00:00
|
|
|
static void __exit ssm2602_exit(void)
|
2008-09-05 10:09:57 +00:00
|
|
|
{
|
|
|
|
|
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
|
|
|
|
|
i2c_del_driver(&ssm2602_i2c_driver);
|
|
|
|
|
#endif
|
2008-12-08 19:17:58 +00:00
|
|
|
}
|
|
|
|
|
module_exit(ssm2602_exit);
|
|
|
|
|
|
2008-09-05 10:09:57 +00:00
|
|
|
MODULE_DESCRIPTION("ASoC ssm2602 driver");
|
|
|
|
|
MODULE_AUTHOR("Cliff Cai");
|
|
|
|
|
MODULE_LICENSE("GPL");
|
