2008-09-11 02:33:32 +08:00
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/*
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* wm8971.c -- WM8971 ALSA SoC Audio driver
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*
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* Copyright 2005 Lab126, Inc.
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*
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* Author: Kenneth Kiraly <kiraly@lab126.com>
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*
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* Based on wm8753.c by Liam Girdwood
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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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 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 16:04:11 +08:00
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#include <linux/slab.h>
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2008-09-11 02:33:32 +08:00
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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/initval.h>
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#include "wm8971.h"
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#define WM8971_REG_COUNT 43
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static struct workqueue_struct *wm8971_workq = NULL;
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/* codec private data */
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struct wm8971_priv {
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2010-03-18 04:15:21 +08:00
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enum snd_soc_control_type control_type;
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2008-09-11 02:33:32 +08:00
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unsigned int sysclk;
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};
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/*
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* wm8971 register cache
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* We can't read the WM8971 register space when we
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* are using 2 wire for device control, so we cache them instead.
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*/
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static const u16 wm8971_reg[] = {
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0x0097, 0x0097, 0x0079, 0x0079, /* 0 */
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0x0000, 0x0008, 0x0000, 0x000a, /* 4 */
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0x0000, 0x0000, 0x00ff, 0x00ff, /* 8 */
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0x000f, 0x000f, 0x0000, 0x0000, /* 12 */
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0x0000, 0x007b, 0x0000, 0x0032, /* 16 */
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0x0000, 0x00c3, 0x00c3, 0x00c0, /* 20 */
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0x0000, 0x0000, 0x0000, 0x0000, /* 24 */
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0x0000, 0x0000, 0x0000, 0x0000, /* 28 */
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0x0000, 0x0000, 0x0050, 0x0050, /* 32 */
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0x0050, 0x0050, 0x0050, 0x0050, /* 36 */
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0x0079, 0x0079, 0x0079, /* 40 */
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};
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2009-07-06 00:24:50 +08:00
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#define wm8971_reset(c) snd_soc_write(c, WM8971_RESET, 0)
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2008-09-11 02:33:32 +08:00
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/* WM8971 Controls */
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static const char *wm8971_bass[] = { "Linear Control", "Adaptive Boost" };
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static const char *wm8971_bass_filter[] = { "130Hz @ 48kHz",
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"200Hz @ 48kHz" };
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static const char *wm8971_treble[] = { "8kHz", "4kHz" };
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static const char *wm8971_alc_func[] = { "Off", "Right", "Left", "Stereo" };
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static const char *wm8971_ng_type[] = { "Constant PGA Gain",
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"Mute ADC Output" };
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static const char *wm8971_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" };
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static const char *wm8971_mono_mux[] = {"Stereo", "Mono (Left)",
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"Mono (Right)", "Digital Mono"};
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static const char *wm8971_dac_phase[] = { "Non Inverted", "Inverted" };
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static const char *wm8971_lline_mux[] = {"Line", "NC", "NC", "PGA",
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"Differential"};
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static const char *wm8971_rline_mux[] = {"Line", "Mic", "NC", "PGA",
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"Differential"};
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static const char *wm8971_lpga_sel[] = {"Line", "NC", "NC", "Differential"};
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static const char *wm8971_rpga_sel[] = {"Line", "Mic", "NC", "Differential"};
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static const char *wm8971_adcpol[] = {"Normal", "L Invert", "R Invert",
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"L + R Invert"};
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static const struct soc_enum wm8971_enum[] = {
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SOC_ENUM_SINGLE(WM8971_BASS, 7, 2, wm8971_bass), /* 0 */
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SOC_ENUM_SINGLE(WM8971_BASS, 6, 2, wm8971_bass_filter),
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SOC_ENUM_SINGLE(WM8971_TREBLE, 6, 2, wm8971_treble),
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SOC_ENUM_SINGLE(WM8971_ALC1, 7, 4, wm8971_alc_func),
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SOC_ENUM_SINGLE(WM8971_NGATE, 1, 2, wm8971_ng_type), /* 4 */
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SOC_ENUM_SINGLE(WM8971_ADCDAC, 1, 4, wm8971_deemp),
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SOC_ENUM_SINGLE(WM8971_ADCTL1, 4, 4, wm8971_mono_mux),
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SOC_ENUM_SINGLE(WM8971_ADCTL1, 1, 2, wm8971_dac_phase),
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SOC_ENUM_SINGLE(WM8971_LOUTM1, 0, 5, wm8971_lline_mux), /* 8 */
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SOC_ENUM_SINGLE(WM8971_ROUTM1, 0, 5, wm8971_rline_mux),
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SOC_ENUM_SINGLE(WM8971_LADCIN, 6, 4, wm8971_lpga_sel),
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SOC_ENUM_SINGLE(WM8971_RADCIN, 6, 4, wm8971_rpga_sel),
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SOC_ENUM_SINGLE(WM8971_ADCDAC, 5, 4, wm8971_adcpol), /* 12 */
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SOC_ENUM_SINGLE(WM8971_ADCIN, 6, 4, wm8971_mono_mux),
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};
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static const struct snd_kcontrol_new wm8971_snd_controls[] = {
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SOC_DOUBLE_R("Capture Volume", WM8971_LINVOL, WM8971_RINVOL, 0, 63, 0),
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SOC_DOUBLE_R("Capture ZC Switch", WM8971_LINVOL, WM8971_RINVOL,
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6, 1, 0),
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SOC_DOUBLE_R("Capture Switch", WM8971_LINVOL, WM8971_RINVOL, 7, 1, 1),
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SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8971_LOUT1V,
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WM8971_ROUT1V, 7, 1, 0),
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SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8971_LOUT2V,
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WM8971_ROUT2V, 7, 1, 0),
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SOC_SINGLE("Mono Playback ZC Switch", WM8971_MOUTV, 7, 1, 0),
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SOC_DOUBLE_R("PCM Volume", WM8971_LDAC, WM8971_RDAC, 0, 255, 0),
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SOC_DOUBLE_R("Bypass Left Playback Volume", WM8971_LOUTM1,
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WM8971_LOUTM2, 4, 7, 1),
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SOC_DOUBLE_R("Bypass Right Playback Volume", WM8971_ROUTM1,
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WM8971_ROUTM2, 4, 7, 1),
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SOC_DOUBLE_R("Bypass Mono Playback Volume", WM8971_MOUTM1,
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WM8971_MOUTM2, 4, 7, 1),
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SOC_DOUBLE_R("Headphone Playback Volume", WM8971_LOUT1V,
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WM8971_ROUT1V, 0, 127, 0),
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SOC_DOUBLE_R("Speaker Playback Volume", WM8971_LOUT2V,
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WM8971_ROUT2V, 0, 127, 0),
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SOC_ENUM("Bass Boost", wm8971_enum[0]),
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SOC_ENUM("Bass Filter", wm8971_enum[1]),
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SOC_SINGLE("Bass Volume", WM8971_BASS, 0, 7, 1),
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SOC_SINGLE("Treble Volume", WM8971_TREBLE, 0, 7, 0),
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SOC_ENUM("Treble Cut-off", wm8971_enum[2]),
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SOC_SINGLE("Capture Filter Switch", WM8971_ADCDAC, 0, 1, 1),
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SOC_SINGLE("ALC Target Volume", WM8971_ALC1, 0, 7, 0),
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SOC_SINGLE("ALC Max Volume", WM8971_ALC1, 4, 7, 0),
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SOC_SINGLE("ALC Capture Target Volume", WM8971_ALC1, 0, 7, 0),
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SOC_SINGLE("ALC Capture Max Volume", WM8971_ALC1, 4, 7, 0),
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SOC_ENUM("ALC Capture Function", wm8971_enum[3]),
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SOC_SINGLE("ALC Capture ZC Switch", WM8971_ALC2, 7, 1, 0),
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SOC_SINGLE("ALC Capture Hold Time", WM8971_ALC2, 0, 15, 0),
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SOC_SINGLE("ALC Capture Decay Time", WM8971_ALC3, 4, 15, 0),
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SOC_SINGLE("ALC Capture Attack Time", WM8971_ALC3, 0, 15, 0),
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SOC_SINGLE("ALC Capture NG Threshold", WM8971_NGATE, 3, 31, 0),
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SOC_ENUM("ALC Capture NG Type", wm8971_enum[4]),
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SOC_SINGLE("ALC Capture NG Switch", WM8971_NGATE, 0, 1, 0),
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SOC_SINGLE("Capture 6dB Attenuate", WM8971_ADCDAC, 8, 1, 0),
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SOC_SINGLE("Playback 6dB Attenuate", WM8971_ADCDAC, 7, 1, 0),
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SOC_ENUM("Playback De-emphasis", wm8971_enum[5]),
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SOC_ENUM("Playback Function", wm8971_enum[6]),
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SOC_ENUM("Playback Phase", wm8971_enum[7]),
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SOC_DOUBLE_R("Mic Boost", WM8971_LADCIN, WM8971_RADCIN, 4, 3, 0),
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};
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/*
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* DAPM Controls
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*/
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/* Left Mixer */
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static const struct snd_kcontrol_new wm8971_left_mixer_controls[] = {
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SOC_DAPM_SINGLE("Playback Switch", WM8971_LOUTM1, 8, 1, 0),
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SOC_DAPM_SINGLE("Left Bypass Switch", WM8971_LOUTM1, 7, 1, 0),
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SOC_DAPM_SINGLE("Right Playback Switch", WM8971_LOUTM2, 8, 1, 0),
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SOC_DAPM_SINGLE("Right Bypass Switch", WM8971_LOUTM2, 7, 1, 0),
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};
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/* Right Mixer */
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static const struct snd_kcontrol_new wm8971_right_mixer_controls[] = {
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SOC_DAPM_SINGLE("Left Playback Switch", WM8971_ROUTM1, 8, 1, 0),
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SOC_DAPM_SINGLE("Left Bypass Switch", WM8971_ROUTM1, 7, 1, 0),
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SOC_DAPM_SINGLE("Playback Switch", WM8971_ROUTM2, 8, 1, 0),
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SOC_DAPM_SINGLE("Right Bypass Switch", WM8971_ROUTM2, 7, 1, 0),
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};
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/* Mono Mixer */
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static const struct snd_kcontrol_new wm8971_mono_mixer_controls[] = {
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SOC_DAPM_SINGLE("Left Playback Switch", WM8971_MOUTM1, 8, 1, 0),
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SOC_DAPM_SINGLE("Left Bypass Switch", WM8971_MOUTM1, 7, 1, 0),
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SOC_DAPM_SINGLE("Right Playback Switch", WM8971_MOUTM2, 8, 1, 0),
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SOC_DAPM_SINGLE("Right Bypass Switch", WM8971_MOUTM2, 7, 1, 0),
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};
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/* Left Line Mux */
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static const struct snd_kcontrol_new wm8971_left_line_controls =
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SOC_DAPM_ENUM("Route", wm8971_enum[8]);
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/* Right Line Mux */
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static const struct snd_kcontrol_new wm8971_right_line_controls =
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SOC_DAPM_ENUM("Route", wm8971_enum[9]);
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/* Left PGA Mux */
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static const struct snd_kcontrol_new wm8971_left_pga_controls =
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SOC_DAPM_ENUM("Route", wm8971_enum[10]);
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/* Right PGA Mux */
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static const struct snd_kcontrol_new wm8971_right_pga_controls =
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SOC_DAPM_ENUM("Route", wm8971_enum[11]);
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/* Mono ADC Mux */
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static const struct snd_kcontrol_new wm8971_monomux_controls =
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SOC_DAPM_ENUM("Route", wm8971_enum[13]);
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static const struct snd_soc_dapm_widget wm8971_dapm_widgets[] = {
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SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0,
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&wm8971_left_mixer_controls[0],
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ARRAY_SIZE(wm8971_left_mixer_controls)),
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SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0,
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&wm8971_right_mixer_controls[0],
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ARRAY_SIZE(wm8971_right_mixer_controls)),
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SND_SOC_DAPM_MIXER("Mono Mixer", WM8971_PWR2, 2, 0,
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&wm8971_mono_mixer_controls[0],
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ARRAY_SIZE(wm8971_mono_mixer_controls)),
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SND_SOC_DAPM_PGA("Right Out 2", WM8971_PWR2, 3, 0, NULL, 0),
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SND_SOC_DAPM_PGA("Left Out 2", WM8971_PWR2, 4, 0, NULL, 0),
|
|
|
|
|
SND_SOC_DAPM_PGA("Right Out 1", WM8971_PWR2, 5, 0, NULL, 0),
|
|
|
|
|
SND_SOC_DAPM_PGA("Left Out 1", WM8971_PWR2, 6, 0, NULL, 0),
|
|
|
|
|
SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8971_PWR2, 7, 0),
|
|
|
|
|
SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8971_PWR2, 8, 0),
|
|
|
|
|
SND_SOC_DAPM_PGA("Mono Out 1", WM8971_PWR2, 2, 0, NULL, 0),
|
|
|
|
|
|
2011-10-27 15:46:53 +08:00
|
|
|
SND_SOC_DAPM_SUPPLY("Mic Bias", WM8971_PWR1, 1, 0, NULL, 0),
|
2008-09-11 02:33:32 +08:00
|
|
|
SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8971_PWR1, 2, 0),
|
|
|
|
|
SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8971_PWR1, 3, 0),
|
|
|
|
|
|
|
|
|
|
SND_SOC_DAPM_MUX("Left PGA Mux", WM8971_PWR1, 5, 0,
|
|
|
|
|
&wm8971_left_pga_controls),
|
|
|
|
|
SND_SOC_DAPM_MUX("Right PGA Mux", WM8971_PWR1, 4, 0,
|
|
|
|
|
&wm8971_right_pga_controls),
|
|
|
|
|
SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0,
|
|
|
|
|
&wm8971_left_line_controls),
|
|
|
|
|
SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0,
|
|
|
|
|
&wm8971_right_line_controls),
|
|
|
|
|
|
|
|
|
|
SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0,
|
|
|
|
|
&wm8971_monomux_controls),
|
|
|
|
|
SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0,
|
|
|
|
|
&wm8971_monomux_controls),
|
|
|
|
|
|
|
|
|
|
SND_SOC_DAPM_OUTPUT("LOUT1"),
|
|
|
|
|
SND_SOC_DAPM_OUTPUT("ROUT1"),
|
|
|
|
|
SND_SOC_DAPM_OUTPUT("LOUT2"),
|
|
|
|
|
SND_SOC_DAPM_OUTPUT("ROUT2"),
|
|
|
|
|
SND_SOC_DAPM_OUTPUT("MONO"),
|
|
|
|
|
|
|
|
|
|
SND_SOC_DAPM_INPUT("LINPUT1"),
|
|
|
|
|
SND_SOC_DAPM_INPUT("RINPUT1"),
|
|
|
|
|
SND_SOC_DAPM_INPUT("MIC"),
|
|
|
|
|
};
|
|
|
|
|
|
2011-12-29 19:03:08 +08:00
|
|
|
static const struct snd_soc_dapm_route wm8971_dapm_routes[] = {
|
2008-09-11 02:33:32 +08:00
|
|
|
/* left mixer */
|
|
|
|
|
{"Left Mixer", "Playback Switch", "Left DAC"},
|
|
|
|
|
{"Left Mixer", "Left Bypass Switch", "Left Line Mux"},
|
|
|
|
|
{"Left Mixer", "Right Playback Switch", "Right DAC"},
|
|
|
|
|
{"Left Mixer", "Right Bypass Switch", "Right Line Mux"},
|
|
|
|
|
|
|
|
|
|
/* right mixer */
|
|
|
|
|
{"Right Mixer", "Left Playback Switch", "Left DAC"},
|
|
|
|
|
{"Right Mixer", "Left Bypass Switch", "Left Line Mux"},
|
|
|
|
|
{"Right Mixer", "Playback Switch", "Right DAC"},
|
|
|
|
|
{"Right Mixer", "Right Bypass Switch", "Right Line Mux"},
|
|
|
|
|
|
|
|
|
|
/* left out 1 */
|
|
|
|
|
{"Left Out 1", NULL, "Left Mixer"},
|
|
|
|
|
{"LOUT1", NULL, "Left Out 1"},
|
|
|
|
|
|
|
|
|
|
/* left out 2 */
|
|
|
|
|
{"Left Out 2", NULL, "Left Mixer"},
|
|
|
|
|
{"LOUT2", NULL, "Left Out 2"},
|
|
|
|
|
|
|
|
|
|
/* right out 1 */
|
|
|
|
|
{"Right Out 1", NULL, "Right Mixer"},
|
|
|
|
|
{"ROUT1", NULL, "Right Out 1"},
|
|
|
|
|
|
|
|
|
|
/* right out 2 */
|
|
|
|
|
{"Right Out 2", NULL, "Right Mixer"},
|
|
|
|
|
{"ROUT2", NULL, "Right Out 2"},
|
|
|
|
|
|
|
|
|
|
/* mono mixer */
|
|
|
|
|
{"Mono Mixer", "Left Playback Switch", "Left DAC"},
|
|
|
|
|
{"Mono Mixer", "Left Bypass Switch", "Left Line Mux"},
|
|
|
|
|
{"Mono Mixer", "Right Playback Switch", "Right DAC"},
|
|
|
|
|
{"Mono Mixer", "Right Bypass Switch", "Right Line Mux"},
|
|
|
|
|
|
|
|
|
|
/* mono out */
|
|
|
|
|
{"Mono Out", NULL, "Mono Mixer"},
|
|
|
|
|
{"MONO1", NULL, "Mono Out"},
|
|
|
|
|
|
|
|
|
|
/* Left Line Mux */
|
|
|
|
|
{"Left Line Mux", "Line", "LINPUT1"},
|
|
|
|
|
{"Left Line Mux", "PGA", "Left PGA Mux"},
|
|
|
|
|
{"Left Line Mux", "Differential", "Differential Mux"},
|
|
|
|
|
|
|
|
|
|
/* Right Line Mux */
|
|
|
|
|
{"Right Line Mux", "Line", "RINPUT1"},
|
|
|
|
|
{"Right Line Mux", "Mic", "MIC"},
|
|
|
|
|
{"Right Line Mux", "PGA", "Right PGA Mux"},
|
|
|
|
|
{"Right Line Mux", "Differential", "Differential Mux"},
|
|
|
|
|
|
|
|
|
|
/* Left PGA Mux */
|
|
|
|
|
{"Left PGA Mux", "Line", "LINPUT1"},
|
|
|
|
|
{"Left PGA Mux", "Differential", "Differential Mux"},
|
|
|
|
|
|
|
|
|
|
/* Right PGA Mux */
|
|
|
|
|
{"Right PGA Mux", "Line", "RINPUT1"},
|
|
|
|
|
{"Right PGA Mux", "Differential", "Differential Mux"},
|
|
|
|
|
|
|
|
|
|
/* Differential Mux */
|
|
|
|
|
{"Differential Mux", "Line", "LINPUT1"},
|
|
|
|
|
{"Differential Mux", "Line", "RINPUT1"},
|
|
|
|
|
|
|
|
|
|
/* Left ADC Mux */
|
|
|
|
|
{"Left ADC Mux", "Stereo", "Left PGA Mux"},
|
|
|
|
|
{"Left ADC Mux", "Mono (Left)", "Left PGA Mux"},
|
|
|
|
|
{"Left ADC Mux", "Digital Mono", "Left PGA Mux"},
|
|
|
|
|
|
|
|
|
|
/* Right ADC Mux */
|
|
|
|
|
{"Right ADC Mux", "Stereo", "Right PGA Mux"},
|
|
|
|
|
{"Right ADC Mux", "Mono (Right)", "Right PGA Mux"},
|
|
|
|
|
{"Right ADC Mux", "Digital Mono", "Right PGA Mux"},
|
|
|
|
|
|
|
|
|
|
/* ADC */
|
|
|
|
|
{"Left ADC", NULL, "Left ADC Mux"},
|
|
|
|
|
{"Right ADC", NULL, "Right ADC Mux"},
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
struct _coeff_div {
|
|
|
|
|
u32 mclk;
|
|
|
|
|
u32 rate;
|
|
|
|
|
u16 fs;
|
|
|
|
|
u8 sr:5;
|
|
|
|
|
u8 usb:1;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* codec hifi mclk clock divider coefficients */
|
|
|
|
|
static const struct _coeff_div coeff_div[] = {
|
|
|
|
|
/* 8k */
|
|
|
|
|
{12288000, 8000, 1536, 0x6, 0x0},
|
|
|
|
|
{11289600, 8000, 1408, 0x16, 0x0},
|
|
|
|
|
{18432000, 8000, 2304, 0x7, 0x0},
|
|
|
|
|
{16934400, 8000, 2112, 0x17, 0x0},
|
|
|
|
|
{12000000, 8000, 1500, 0x6, 0x1},
|
|
|
|
|
|
|
|
|
|
/* 11.025k */
|
|
|
|
|
{11289600, 11025, 1024, 0x18, 0x0},
|
|
|
|
|
{16934400, 11025, 1536, 0x19, 0x0},
|
|
|
|
|
{12000000, 11025, 1088, 0x19, 0x1},
|
|
|
|
|
|
|
|
|
|
/* 16k */
|
|
|
|
|
{12288000, 16000, 768, 0xa, 0x0},
|
|
|
|
|
{18432000, 16000, 1152, 0xb, 0x0},
|
|
|
|
|
{12000000, 16000, 750, 0xa, 0x1},
|
|
|
|
|
|
|
|
|
|
/* 22.05k */
|
|
|
|
|
{11289600, 22050, 512, 0x1a, 0x0},
|
|
|
|
|
{16934400, 22050, 768, 0x1b, 0x0},
|
|
|
|
|
{12000000, 22050, 544, 0x1b, 0x1},
|
|
|
|
|
|
|
|
|
|
/* 32k */
|
|
|
|
|
{12288000, 32000, 384, 0xc, 0x0},
|
|
|
|
|
{18432000, 32000, 576, 0xd, 0x0},
|
|
|
|
|
{12000000, 32000, 375, 0xa, 0x1},
|
|
|
|
|
|
|
|
|
|
/* 44.1k */
|
|
|
|
|
{11289600, 44100, 256, 0x10, 0x0},
|
|
|
|
|
{16934400, 44100, 384, 0x11, 0x0},
|
|
|
|
|
{12000000, 44100, 272, 0x11, 0x1},
|
|
|
|
|
|
|
|
|
|
/* 48k */
|
|
|
|
|
{12288000, 48000, 256, 0x0, 0x0},
|
|
|
|
|
{18432000, 48000, 384, 0x1, 0x0},
|
|
|
|
|
{12000000, 48000, 250, 0x0, 0x1},
|
|
|
|
|
|
|
|
|
|
/* 88.2k */
|
|
|
|
|
{11289600, 88200, 128, 0x1e, 0x0},
|
|
|
|
|
{16934400, 88200, 192, 0x1f, 0x0},
|
|
|
|
|
{12000000, 88200, 136, 0x1f, 0x1},
|
|
|
|
|
|
|
|
|
|
/* 96k */
|
|
|
|
|
{12288000, 96000, 128, 0xe, 0x0},
|
|
|
|
|
{18432000, 96000, 192, 0xf, 0x0},
|
|
|
|
|
{12000000, 96000, 125, 0xe, 0x1},
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static 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 -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int wm8971_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 14:35:19 +08:00
|
|
|
struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec);
|
2008-09-11 02:33:32 +08:00
|
|
|
|
|
|
|
|
switch (freq) {
|
|
|
|
|
case 11289600:
|
|
|
|
|
case 12000000:
|
|
|
|
|
case 12288000:
|
|
|
|
|
case 16934400:
|
|
|
|
|
case 18432000:
|
|
|
|
|
wm8971->sysclk = freq;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int wm8971_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:
|
|
|
|
|
iface |= 0x0003;
|
|
|
|
|
break;
|
|
|
|
|
case SND_SOC_DAIFMT_DSP_B:
|
|
|
|
|
iface |= 0x0013;
|
|
|
|
|
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;
|
|
|
|
|
}
|
|
|
|
|
|
2009-07-06 00:24:50 +08:00
|
|
|
snd_soc_write(codec, WM8971_IFACE, iface);
|
2008-09-11 02:33:32 +08:00
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int wm8971_pcm_hw_params(struct snd_pcm_substream *substream,
|
2008-11-19 06:11:38 +08:00
|
|
|
struct snd_pcm_hw_params *params,
|
|
|
|
|
struct snd_soc_dai *dai)
|
2008-09-11 02:33:32 +08:00
|
|
|
{
|
2012-04-04 22:58:16 +08:00
|
|
|
struct snd_soc_codec *codec = dai->codec;
|
2010-04-14 14:35:19 +08:00
|
|
|
struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec);
|
2009-07-06 00:24:50 +08:00
|
|
|
u16 iface = snd_soc_read(codec, WM8971_IFACE) & 0x1f3;
|
|
|
|
|
u16 srate = snd_soc_read(codec, WM8971_SRATE) & 0x1c0;
|
2008-09-11 02:33:32 +08:00
|
|
|
int coeff = get_coeff(wm8971->sysclk, params_rate(params));
|
|
|
|
|
|
|
|
|
|
/* 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;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* set iface & srate */
|
2009-07-06 00:24:50 +08:00
|
|
|
snd_soc_write(codec, WM8971_IFACE, iface);
|
2008-09-11 02:33:32 +08:00
|
|
|
if (coeff >= 0)
|
2009-07-06 00:24:50 +08:00
|
|
|
snd_soc_write(codec, WM8971_SRATE, srate |
|
2008-09-11 02:33:32 +08:00
|
|
|
(coeff_div[coeff].sr << 1) | coeff_div[coeff].usb);
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int wm8971_mute(struct snd_soc_dai *dai, int mute)
|
|
|
|
|
{
|
|
|
|
|
struct snd_soc_codec *codec = dai->codec;
|
2009-07-06 00:24:50 +08:00
|
|
|
u16 mute_reg = snd_soc_read(codec, WM8971_ADCDAC) & 0xfff7;
|
2008-09-11 02:33:32 +08:00
|
|
|
|
|
|
|
|
if (mute)
|
2009-07-06 00:24:50 +08:00
|
|
|
snd_soc_write(codec, WM8971_ADCDAC, mute_reg | 0x8);
|
2008-09-11 02:33:32 +08:00
|
|
|
else
|
2009-07-06 00:24:50 +08:00
|
|
|
snd_soc_write(codec, WM8971_ADCDAC, mute_reg);
|
2008-09-11 02:33:32 +08:00
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int wm8971_set_bias_level(struct snd_soc_codec *codec,
|
|
|
|
|
enum snd_soc_bias_level level)
|
|
|
|
|
{
|
2009-07-06 00:24:50 +08:00
|
|
|
u16 pwr_reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e;
|
2008-09-11 02:33:32 +08:00
|
|
|
|
|
|
|
|
switch (level) {
|
|
|
|
|
case SND_SOC_BIAS_ON:
|
|
|
|
|
/* set vmid to 50k and unmute dac */
|
2009-07-06 00:24:50 +08:00
|
|
|
snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x00c1);
|
2008-09-11 02:33:32 +08:00
|
|
|
break;
|
|
|
|
|
case SND_SOC_BIAS_PREPARE:
|
|
|
|
|
break;
|
|
|
|
|
case SND_SOC_BIAS_STANDBY:
|
2011-10-07 21:52:00 +08:00
|
|
|
if (codec->dapm.bias_level == SND_SOC_BIAS_OFF)
|
|
|
|
|
snd_soc_cache_sync(codec);
|
|
|
|
|
|
2008-09-11 02:33:32 +08:00
|
|
|
/* mute dac and set vmid to 500k, enable VREF */
|
2009-07-06 00:24:50 +08:00
|
|
|
snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x0140);
|
2008-09-11 02:33:32 +08:00
|
|
|
break;
|
|
|
|
|
case SND_SOC_BIAS_OFF:
|
2009-07-06 00:24:50 +08:00
|
|
|
snd_soc_write(codec, WM8971_PWR1, 0x0001);
|
2008-09-11 02:33:32 +08:00
|
|
|
break;
|
|
|
|
|
}
|
2010-11-05 21:53:46 +08:00
|
|
|
codec->dapm.bias_level = level;
|
2008-09-11 02:33:32 +08:00
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#define WM8971_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
|
|
|
|
|
SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
|
|
|
|
|
SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
|
|
|
|
|
|
|
|
|
|
#define WM8971_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
|
|
|
|
|
SNDRV_PCM_FMTBIT_S24_LE)
|
|
|
|
|
|
2011-11-23 18:40:40 +08:00
|
|
|
static const struct snd_soc_dai_ops wm8971_dai_ops = {
|
2009-03-03 09:41:00 +08:00
|
|
|
.hw_params = wm8971_pcm_hw_params,
|
|
|
|
|
.digital_mute = wm8971_mute,
|
|
|
|
|
.set_fmt = wm8971_set_dai_fmt,
|
|
|
|
|
.set_sysclk = wm8971_set_dai_sysclk,
|
|
|
|
|
};
|
|
|
|
|
|
2010-03-18 04:15:21 +08:00
|
|
|
static struct snd_soc_dai_driver wm8971_dai = {
|
|
|
|
|
.name = "wm8971-hifi",
|
2008-09-11 02:33:32 +08:00
|
|
|
.playback = {
|
|
|
|
|
.stream_name = "Playback",
|
|
|
|
|
.channels_min = 1,
|
|
|
|
|
.channels_max = 2,
|
|
|
|
|
.rates = WM8971_RATES,
|
|
|
|
|
.formats = WM8971_FORMATS,},
|
|
|
|
|
.capture = {
|
|
|
|
|
.stream_name = "Capture",
|
|
|
|
|
.channels_min = 1,
|
|
|
|
|
.channels_max = 2,
|
|
|
|
|
.rates = WM8971_RATES,
|
|
|
|
|
.formats = WM8971_FORMATS,},
|
2009-03-03 09:41:00 +08:00
|
|
|
.ops = &wm8971_dai_ops,
|
2008-09-11 02:33:32 +08:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static void wm8971_work(struct work_struct *work)
|
|
|
|
|
{
|
2010-11-05 21:53:46 +08:00
|
|
|
struct snd_soc_dapm_context *dapm =
|
|
|
|
|
container_of(work, struct snd_soc_dapm_context,
|
|
|
|
|
delayed_work.work);
|
|
|
|
|
struct snd_soc_codec *codec = dapm->codec;
|
|
|
|
|
wm8971_set_bias_level(codec, codec->dapm.bias_level);
|
2008-09-11 02:33:32 +08:00
|
|
|
}
|
|
|
|
|
|
2011-12-02 17:18:28 +08:00
|
|
|
static int wm8971_suspend(struct snd_soc_codec *codec)
|
2008-09-11 02:33:32 +08:00
|
|
|
{
|
|
|
|
|
wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2010-03-18 04:15:21 +08:00
|
|
|
static int wm8971_resume(struct snd_soc_codec *codec)
|
2008-09-11 02:33:32 +08:00
|
|
|
{
|
|
|
|
|
u16 reg;
|
|
|
|
|
|
|
|
|
|
wm8971_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
|
|
|
|
|
|
|
|
|
|
/* charge wm8971 caps */
|
2010-11-05 21:53:46 +08:00
|
|
|
if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) {
|
2009-07-06 00:24:50 +08:00
|
|
|
reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e;
|
|
|
|
|
snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0);
|
2010-11-05 21:53:46 +08:00
|
|
|
codec->dapm.bias_level = SND_SOC_BIAS_ON;
|
|
|
|
|
queue_delayed_work(wm8971_workq, &codec->dapm.delayed_work,
|
2008-09-11 02:33:32 +08:00
|
|
|
msecs_to_jiffies(1000));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2010-03-18 04:15:21 +08:00
|
|
|
static int wm8971_probe(struct snd_soc_codec *codec)
|
2008-09-11 02:33:32 +08:00
|
|
|
{
|
2010-03-18 04:15:21 +08:00
|
|
|
struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec);
|
|
|
|
|
int ret = 0;
|
|
|
|
|
u16 reg;
|
|
|
|
|
|
|
|
|
|
ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8971->control_type);
|
2009-07-06 00:24:50 +08:00
|
|
|
if (ret < 0) {
|
|
|
|
|
printk(KERN_ERR "wm8971: failed to set cache I/O: %d\n", ret);
|
2010-03-18 04:15:21 +08:00
|
|
|
return ret;
|
2009-07-06 00:24:50 +08:00
|
|
|
}
|
|
|
|
|
|
2010-11-05 21:53:46 +08:00
|
|
|
INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8971_work);
|
2010-03-18 04:15:21 +08:00
|
|
|
wm8971_workq = create_workqueue("wm8971");
|
|
|
|
|
if (wm8971_workq == NULL)
|
|
|
|
|
return -ENOMEM;
|
2008-09-11 02:33:32 +08:00
|
|
|
|
2010-03-18 04:15:21 +08:00
|
|
|
wm8971_reset(codec);
|
2008-09-11 02:33:32 +08:00
|
|
|
|
|
|
|
|
/* charge output caps - set vmid to 5k for quick power up */
|
2009-07-06 00:24:50 +08:00
|
|
|
reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e;
|
|
|
|
|
snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0);
|
2010-11-05 21:53:46 +08:00
|
|
|
codec->dapm.bias_level = SND_SOC_BIAS_STANDBY;
|
|
|
|
|
queue_delayed_work(wm8971_workq, &codec->dapm.delayed_work,
|
2008-09-11 02:33:32 +08:00
|
|
|
msecs_to_jiffies(1000));
|
|
|
|
|
|
|
|
|
|
/* set the update bits */
|
2011-10-04 09:58:28 +08:00
|
|
|
snd_soc_update_bits(codec, WM8971_LDAC, 0x0100, 0x0100);
|
|
|
|
|
snd_soc_update_bits(codec, WM8971_RDAC, 0x0100, 0x0100);
|
|
|
|
|
snd_soc_update_bits(codec, WM8971_LOUT1V, 0x0100, 0x0100);
|
|
|
|
|
snd_soc_update_bits(codec, WM8971_ROUT1V, 0x0100, 0x0100);
|
|
|
|
|
snd_soc_update_bits(codec, WM8971_LOUT2V, 0x0100, 0x0100);
|
|
|
|
|
snd_soc_update_bits(codec, WM8971_ROUT2V, 0x0100, 0x0100);
|
|
|
|
|
snd_soc_update_bits(codec, WM8971_LINVOL, 0x0100, 0x0100);
|
|
|
|
|
snd_soc_update_bits(codec, WM8971_RINVOL, 0x0100, 0x0100);
|
2008-09-11 02:33:32 +08:00
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
2010-03-18 04:15:21 +08:00
|
|
|
/* power down chip */
|
|
|
|
|
static int wm8971_remove(struct snd_soc_codec *codec)
|
|
|
|
|
{
|
|
|
|
|
wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF);
|
|
|
|
|
|
|
|
|
|
if (wm8971_workq)
|
|
|
|
|
destroy_workqueue(wm8971_workq);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static struct snd_soc_codec_driver soc_codec_dev_wm8971 = {
|
|
|
|
|
.probe = wm8971_probe,
|
|
|
|
|
.remove = wm8971_remove,
|
|
|
|
|
.suspend = wm8971_suspend,
|
|
|
|
|
.resume = wm8971_resume,
|
|
|
|
|
.set_bias_level = wm8971_set_bias_level,
|
|
|
|
|
.reg_cache_size = ARRAY_SIZE(wm8971_reg),
|
|
|
|
|
.reg_word_size = sizeof(u16),
|
|
|
|
|
.reg_cache_default = wm8971_reg,
|
2011-12-29 19:03:08 +08:00
|
|
|
|
|
|
|
|
.controls = wm8971_snd_controls,
|
|
|
|
|
.num_controls = ARRAY_SIZE(wm8971_snd_controls),
|
|
|
|
|
.dapm_widgets = wm8971_dapm_widgets,
|
|
|
|
|
.num_dapm_widgets = ARRAY_SIZE(wm8971_dapm_widgets),
|
|
|
|
|
.dapm_routes = wm8971_dapm_routes,
|
|
|
|
|
.num_dapm_routes = ARRAY_SIZE(wm8971_dapm_routes),
|
2010-03-18 04:15:21 +08:00
|
|
|
};
|
2008-09-11 02:33:32 +08:00
|
|
|
|
2010-03-18 04:15:21 +08:00
|
|
|
static __devinit int wm8971_i2c_probe(struct i2c_client *i2c,
|
|
|
|
|
const struct i2c_device_id *id)
|
2008-09-11 02:33:32 +08:00
|
|
|
{
|
2010-03-18 04:15:21 +08:00
|
|
|
struct wm8971_priv *wm8971;
|
2008-09-11 02:33:32 +08:00
|
|
|
int ret;
|
|
|
|
|
|
2011-12-29 19:04:04 +08:00
|
|
|
wm8971 = devm_kzalloc(&i2c->dev, sizeof(struct wm8971_priv),
|
|
|
|
|
GFP_KERNEL);
|
2010-03-18 04:15:21 +08:00
|
|
|
if (wm8971 == NULL)
|
|
|
|
|
return -ENOMEM;
|
2008-09-11 02:33:32 +08:00
|
|
|
|
2010-12-29 04:08:57 +08:00
|
|
|
wm8971->control_type = SND_SOC_I2C;
|
2010-03-18 04:15:21 +08:00
|
|
|
i2c_set_clientdata(i2c, wm8971);
|
2008-09-11 02:33:32 +08:00
|
|
|
|
2010-03-18 04:15:21 +08:00
|
|
|
ret = snd_soc_register_codec(&i2c->dev,
|
|
|
|
|
&soc_codec_dev_wm8971, &wm8971_dai, 1);
|
2011-12-29 19:04:04 +08:00
|
|
|
|
2008-09-11 02:33:32 +08:00
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
|
2010-03-18 04:15:21 +08:00
|
|
|
static __devexit int wm8971_i2c_remove(struct i2c_client *client)
|
2008-09-11 02:33:32 +08:00
|
|
|
{
|
2010-03-18 04:15:21 +08:00
|
|
|
snd_soc_unregister_codec(&client->dev);
|
2008-09-11 02:33:32 +08:00
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static const struct i2c_device_id wm8971_i2c_id[] = {
|
|
|
|
|
{ "wm8971", 0 },
|
|
|
|
|
{ }
|
|
|
|
|
};
|
|
|
|
|
MODULE_DEVICE_TABLE(i2c, wm8971_i2c_id);
|
|
|
|
|
|
|
|
|
|
static struct i2c_driver wm8971_i2c_driver = {
|
|
|
|
|
.driver = {
|
2011-12-03 06:08:49 +08:00
|
|
|
.name = "wm8971",
|
2008-09-11 02:33:32 +08:00
|
|
|
.owner = THIS_MODULE,
|
|
|
|
|
},
|
2010-03-18 04:15:21 +08:00
|
|
|
.probe = wm8971_i2c_probe,
|
|
|
|
|
.remove = __devexit_p(wm8971_i2c_remove),
|
2008-09-11 02:33:32 +08:00
|
|
|
.id_table = wm8971_i2c_id,
|
|
|
|
|
};
|
|
|
|
|
|
2012-08-06 19:55:47 +08:00
|
|
|
module_i2c_driver(wm8971_i2c_driver);
|
2008-12-09 03:17:58 +08:00
|
|
|
|
2008-09-11 02:33:32 +08:00
|
|
|
MODULE_DESCRIPTION("ASoC WM8971 driver");
|
|
|
|
|
MODULE_AUTHOR("Lab126");
|
|
|
|
|
MODULE_LICENSE("GPL");
|