c05564c4d8
Android 13
949 lines
24 KiB
C
Executable file
949 lines
24 KiB
C
Executable file
/*
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* Apple Onboard Audio driver for tas codec
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*
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* Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
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*
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* GPL v2, can be found in COPYING.
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*
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* Open questions:
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* - How to distinguish between 3004 and versions?
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*
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* FIXMEs:
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* - This codec driver doesn't honour the 'connected'
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* property of the aoa_codec struct, hence if
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* it is used in machines where not everything is
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* connected it will display wrong mixer elements.
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* - Driver assumes that the microphone is always
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* monaureal and connected to the right channel of
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* the input. This should also be a codec-dependent
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* flag, maybe the codec should have 3 different
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* bits for the three different possibilities how
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* it can be hooked up...
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* But as long as I don't see any hardware hooked
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* up that way...
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* - As Apple notes in their code, the tas3004 seems
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* to delay the right channel by one sample. You can
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* see this when for example recording stereo in
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* audacity, or recording the tas output via cable
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* on another machine (use a sinus generator or so).
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* I tried programming the BiQuads but couldn't
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* make the delay work, maybe someone can read the
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* datasheet and fix it. The relevant Apple comment
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* is in AppleTAS3004Audio.cpp lines 1637 ff. Note
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* that their comment describing how they program
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* the filters sucks...
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*
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* Other things:
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* - this should actually register *two* aoa_codec
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* structs since it has two inputs. Then it must
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* use the prepare callback to forbid running the
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* secondary output on a different clock.
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* Also, whatever bus knows how to do this must
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* provide two soundbus_dev devices and the fabric
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* must be able to link them correctly.
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*
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* I don't even know if Apple ever uses the second
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* port on the tas3004 though, I don't think their
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* i2s controllers can even do it. OTOH, they all
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* derive the clocks from common clocks, so it
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* might just be possible. The framework allows the
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* codec to refine the transfer_info items in the
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* usable callback, so we can simply remove the
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* rates the second instance is not using when it
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* actually is in use.
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* Maybe we'll need to make the sound busses have
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* a 'clock group id' value so the codec can
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* determine if the two outputs can be driven at
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* the same time. But that is likely overkill, up
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* to the fabric to not link them up incorrectly,
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* and up to the hardware designer to not wire
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* them up in some weird unusable way.
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*/
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#include <stddef.h>
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#include <linux/i2c.h>
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#include <asm/pmac_low_i2c.h>
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#include <asm/prom.h>
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#include <linux/delay.h>
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#include <linux/module.h>
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#include <linux/mutex.h>
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#include <linux/slab.h>
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MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>");
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("tas codec driver for snd-aoa");
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#include "tas.h"
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#include "tas-gain-table.h"
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#include "tas-basstreble.h"
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#include "../aoa.h"
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#include "../soundbus/soundbus.h"
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#define PFX "snd-aoa-codec-tas: "
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struct tas {
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struct aoa_codec codec;
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struct i2c_client *i2c;
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u32 mute_l:1, mute_r:1 ,
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controls_created:1 ,
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drc_enabled:1,
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hw_enabled:1;
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u8 cached_volume_l, cached_volume_r;
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u8 mixer_l[3], mixer_r[3];
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u8 bass, treble;
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u8 acr;
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int drc_range;
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/* protects hardware access against concurrency from
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* userspace when hitting controls and during
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* codec init/suspend/resume */
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struct mutex mtx;
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};
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static int tas_reset_init(struct tas *tas);
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static struct tas *codec_to_tas(struct aoa_codec *codec)
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{
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return container_of(codec, struct tas, codec);
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}
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static inline int tas_write_reg(struct tas *tas, u8 reg, u8 len, u8 *data)
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{
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if (len == 1)
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return i2c_smbus_write_byte_data(tas->i2c, reg, *data);
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else
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return i2c_smbus_write_i2c_block_data(tas->i2c, reg, len, data);
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}
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static void tas3004_set_drc(struct tas *tas)
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{
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unsigned char val[6];
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if (tas->drc_enabled)
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val[0] = 0x50; /* 3:1 above threshold */
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else
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val[0] = 0x51; /* disabled */
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val[1] = 0x02; /* 1:1 below threshold */
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if (tas->drc_range > 0xef)
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val[2] = 0xef;
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else if (tas->drc_range < 0)
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val[2] = 0x00;
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else
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val[2] = tas->drc_range;
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val[3] = 0xb0;
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val[4] = 0x60;
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val[5] = 0xa0;
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tas_write_reg(tas, TAS_REG_DRC, 6, val);
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}
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static void tas_set_treble(struct tas *tas)
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{
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u8 tmp;
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tmp = tas3004_treble(tas->treble);
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tas_write_reg(tas, TAS_REG_TREBLE, 1, &tmp);
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}
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static void tas_set_bass(struct tas *tas)
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{
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u8 tmp;
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tmp = tas3004_bass(tas->bass);
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tas_write_reg(tas, TAS_REG_BASS, 1, &tmp);
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}
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static void tas_set_volume(struct tas *tas)
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{
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u8 block[6];
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int tmp;
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u8 left, right;
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left = tas->cached_volume_l;
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right = tas->cached_volume_r;
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if (left > 177) left = 177;
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if (right > 177) right = 177;
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if (tas->mute_l) left = 0;
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if (tas->mute_r) right = 0;
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/* analysing the volume and mixer tables shows
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* that they are similar enough when we shift
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* the mixer table down by 4 bits. The error
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* is miniscule, in just one item the error
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* is 1, at a value of 0x07f17b (mixer table
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* value is 0x07f17a) */
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tmp = tas_gaintable[left];
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block[0] = tmp>>20;
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block[1] = tmp>>12;
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block[2] = tmp>>4;
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tmp = tas_gaintable[right];
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block[3] = tmp>>20;
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block[4] = tmp>>12;
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block[5] = tmp>>4;
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tas_write_reg(tas, TAS_REG_VOL, 6, block);
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}
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static void tas_set_mixer(struct tas *tas)
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{
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u8 block[9];
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int tmp, i;
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u8 val;
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for (i=0;i<3;i++) {
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val = tas->mixer_l[i];
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if (val > 177) val = 177;
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tmp = tas_gaintable[val];
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block[3*i+0] = tmp>>16;
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block[3*i+1] = tmp>>8;
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block[3*i+2] = tmp;
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}
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tas_write_reg(tas, TAS_REG_LMIX, 9, block);
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for (i=0;i<3;i++) {
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val = tas->mixer_r[i];
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if (val > 177) val = 177;
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tmp = tas_gaintable[val];
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block[3*i+0] = tmp>>16;
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block[3*i+1] = tmp>>8;
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block[3*i+2] = tmp;
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}
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tas_write_reg(tas, TAS_REG_RMIX, 9, block);
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}
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/* alsa stuff */
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static int tas_dev_register(struct snd_device *dev)
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{
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return 0;
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}
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static struct snd_device_ops ops = {
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.dev_register = tas_dev_register,
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};
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static int tas_snd_vol_info(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_info *uinfo)
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{
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uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
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uinfo->count = 2;
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uinfo->value.integer.min = 0;
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uinfo->value.integer.max = 177;
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return 0;
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}
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static int tas_snd_vol_get(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct tas *tas = snd_kcontrol_chip(kcontrol);
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mutex_lock(&tas->mtx);
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ucontrol->value.integer.value[0] = tas->cached_volume_l;
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ucontrol->value.integer.value[1] = tas->cached_volume_r;
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mutex_unlock(&tas->mtx);
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return 0;
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}
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static int tas_snd_vol_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct tas *tas = snd_kcontrol_chip(kcontrol);
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if (ucontrol->value.integer.value[0] < 0 ||
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ucontrol->value.integer.value[0] > 177)
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return -EINVAL;
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if (ucontrol->value.integer.value[1] < 0 ||
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ucontrol->value.integer.value[1] > 177)
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return -EINVAL;
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mutex_lock(&tas->mtx);
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if (tas->cached_volume_l == ucontrol->value.integer.value[0]
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&& tas->cached_volume_r == ucontrol->value.integer.value[1]) {
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mutex_unlock(&tas->mtx);
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return 0;
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}
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tas->cached_volume_l = ucontrol->value.integer.value[0];
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tas->cached_volume_r = ucontrol->value.integer.value[1];
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if (tas->hw_enabled)
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tas_set_volume(tas);
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mutex_unlock(&tas->mtx);
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return 1;
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}
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static const struct snd_kcontrol_new volume_control = {
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.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
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.name = "Master Playback Volume",
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.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
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.info = tas_snd_vol_info,
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.get = tas_snd_vol_get,
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.put = tas_snd_vol_put,
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};
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#define tas_snd_mute_info snd_ctl_boolean_stereo_info
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static int tas_snd_mute_get(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct tas *tas = snd_kcontrol_chip(kcontrol);
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mutex_lock(&tas->mtx);
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ucontrol->value.integer.value[0] = !tas->mute_l;
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ucontrol->value.integer.value[1] = !tas->mute_r;
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mutex_unlock(&tas->mtx);
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return 0;
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}
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static int tas_snd_mute_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct tas *tas = snd_kcontrol_chip(kcontrol);
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mutex_lock(&tas->mtx);
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if (tas->mute_l == !ucontrol->value.integer.value[0]
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&& tas->mute_r == !ucontrol->value.integer.value[1]) {
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mutex_unlock(&tas->mtx);
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return 0;
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}
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tas->mute_l = !ucontrol->value.integer.value[0];
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tas->mute_r = !ucontrol->value.integer.value[1];
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if (tas->hw_enabled)
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tas_set_volume(tas);
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mutex_unlock(&tas->mtx);
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return 1;
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}
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static const struct snd_kcontrol_new mute_control = {
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.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
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.name = "Master Playback Switch",
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.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
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.info = tas_snd_mute_info,
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.get = tas_snd_mute_get,
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.put = tas_snd_mute_put,
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};
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static int tas_snd_mixer_info(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_info *uinfo)
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{
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uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
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uinfo->count = 2;
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uinfo->value.integer.min = 0;
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uinfo->value.integer.max = 177;
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return 0;
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}
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static int tas_snd_mixer_get(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct tas *tas = snd_kcontrol_chip(kcontrol);
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int idx = kcontrol->private_value;
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mutex_lock(&tas->mtx);
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ucontrol->value.integer.value[0] = tas->mixer_l[idx];
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ucontrol->value.integer.value[1] = tas->mixer_r[idx];
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mutex_unlock(&tas->mtx);
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return 0;
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}
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static int tas_snd_mixer_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct tas *tas = snd_kcontrol_chip(kcontrol);
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int idx = kcontrol->private_value;
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mutex_lock(&tas->mtx);
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if (tas->mixer_l[idx] == ucontrol->value.integer.value[0]
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&& tas->mixer_r[idx] == ucontrol->value.integer.value[1]) {
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mutex_unlock(&tas->mtx);
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return 0;
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}
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tas->mixer_l[idx] = ucontrol->value.integer.value[0];
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tas->mixer_r[idx] = ucontrol->value.integer.value[1];
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if (tas->hw_enabled)
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tas_set_mixer(tas);
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mutex_unlock(&tas->mtx);
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return 1;
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}
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#define MIXER_CONTROL(n,descr,idx) \
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static struct snd_kcontrol_new n##_control = { \
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.iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
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.name = descr " Playback Volume", \
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.access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \
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.info = tas_snd_mixer_info, \
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.get = tas_snd_mixer_get, \
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.put = tas_snd_mixer_put, \
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.private_value = idx, \
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}
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MIXER_CONTROL(pcm1, "PCM", 0);
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MIXER_CONTROL(monitor, "Monitor", 2);
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static int tas_snd_drc_range_info(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_info *uinfo)
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{
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uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
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uinfo->count = 1;
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uinfo->value.integer.min = 0;
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uinfo->value.integer.max = TAS3004_DRC_MAX;
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return 0;
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}
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static int tas_snd_drc_range_get(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct tas *tas = snd_kcontrol_chip(kcontrol);
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mutex_lock(&tas->mtx);
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ucontrol->value.integer.value[0] = tas->drc_range;
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mutex_unlock(&tas->mtx);
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return 0;
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}
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static int tas_snd_drc_range_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct tas *tas = snd_kcontrol_chip(kcontrol);
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if (ucontrol->value.integer.value[0] < 0 ||
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ucontrol->value.integer.value[0] > TAS3004_DRC_MAX)
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return -EINVAL;
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mutex_lock(&tas->mtx);
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if (tas->drc_range == ucontrol->value.integer.value[0]) {
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mutex_unlock(&tas->mtx);
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return 0;
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}
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tas->drc_range = ucontrol->value.integer.value[0];
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if (tas->hw_enabled)
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tas3004_set_drc(tas);
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mutex_unlock(&tas->mtx);
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return 1;
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}
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static const struct snd_kcontrol_new drc_range_control = {
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.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
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.name = "DRC Range",
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.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
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.info = tas_snd_drc_range_info,
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.get = tas_snd_drc_range_get,
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.put = tas_snd_drc_range_put,
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};
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#define tas_snd_drc_switch_info snd_ctl_boolean_mono_info
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static int tas_snd_drc_switch_get(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct tas *tas = snd_kcontrol_chip(kcontrol);
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mutex_lock(&tas->mtx);
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ucontrol->value.integer.value[0] = tas->drc_enabled;
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mutex_unlock(&tas->mtx);
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return 0;
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}
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static int tas_snd_drc_switch_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct tas *tas = snd_kcontrol_chip(kcontrol);
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mutex_lock(&tas->mtx);
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if (tas->drc_enabled == ucontrol->value.integer.value[0]) {
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mutex_unlock(&tas->mtx);
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return 0;
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}
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tas->drc_enabled = !!ucontrol->value.integer.value[0];
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if (tas->hw_enabled)
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tas3004_set_drc(tas);
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mutex_unlock(&tas->mtx);
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return 1;
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}
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static const struct snd_kcontrol_new drc_switch_control = {
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.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
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.name = "DRC Range Switch",
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.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
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.info = tas_snd_drc_switch_info,
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.get = tas_snd_drc_switch_get,
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.put = tas_snd_drc_switch_put,
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};
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static int tas_snd_capture_source_info(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_info *uinfo)
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{
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static const char * const texts[] = { "Line-In", "Microphone" };
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|
|
return snd_ctl_enum_info(uinfo, 1, 2, texts);
|
|
}
|
|
|
|
static int tas_snd_capture_source_get(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct tas *tas = snd_kcontrol_chip(kcontrol);
|
|
|
|
mutex_lock(&tas->mtx);
|
|
ucontrol->value.enumerated.item[0] = !!(tas->acr & TAS_ACR_INPUT_B);
|
|
mutex_unlock(&tas->mtx);
|
|
return 0;
|
|
}
|
|
|
|
static int tas_snd_capture_source_put(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct tas *tas = snd_kcontrol_chip(kcontrol);
|
|
int oldacr;
|
|
|
|
if (ucontrol->value.enumerated.item[0] > 1)
|
|
return -EINVAL;
|
|
mutex_lock(&tas->mtx);
|
|
oldacr = tas->acr;
|
|
|
|
/*
|
|
* Despite what the data sheet says in one place, the
|
|
* TAS_ACR_B_MONAUREAL bit forces mono output even when
|
|
* input A (line in) is selected.
|
|
*/
|
|
tas->acr &= ~(TAS_ACR_INPUT_B | TAS_ACR_B_MONAUREAL);
|
|
if (ucontrol->value.enumerated.item[0])
|
|
tas->acr |= TAS_ACR_INPUT_B | TAS_ACR_B_MONAUREAL |
|
|
TAS_ACR_B_MON_SEL_RIGHT;
|
|
if (oldacr == tas->acr) {
|
|
mutex_unlock(&tas->mtx);
|
|
return 0;
|
|
}
|
|
if (tas->hw_enabled)
|
|
tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr);
|
|
mutex_unlock(&tas->mtx);
|
|
return 1;
|
|
}
|
|
|
|
static const struct snd_kcontrol_new capture_source_control = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
/* If we name this 'Input Source', it properly shows up in
|
|
* alsamixer as a selection, * but it's shown under the
|
|
* 'Playback' category.
|
|
* If I name it 'Capture Source', it shows up in strange
|
|
* ways (two bools of which one can be selected at a
|
|
* time) but at least it's shown in the 'Capture'
|
|
* category.
|
|
* I was told that this was due to backward compatibility,
|
|
* but I don't understand then why the mangling is *not*
|
|
* done when I name it "Input Source".....
|
|
*/
|
|
.name = "Capture Source",
|
|
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
|
|
.info = tas_snd_capture_source_info,
|
|
.get = tas_snd_capture_source_get,
|
|
.put = tas_snd_capture_source_put,
|
|
};
|
|
|
|
static int tas_snd_treble_info(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_info *uinfo)
|
|
{
|
|
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
|
|
uinfo->count = 1;
|
|
uinfo->value.integer.min = TAS3004_TREBLE_MIN;
|
|
uinfo->value.integer.max = TAS3004_TREBLE_MAX;
|
|
return 0;
|
|
}
|
|
|
|
static int tas_snd_treble_get(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct tas *tas = snd_kcontrol_chip(kcontrol);
|
|
|
|
mutex_lock(&tas->mtx);
|
|
ucontrol->value.integer.value[0] = tas->treble;
|
|
mutex_unlock(&tas->mtx);
|
|
return 0;
|
|
}
|
|
|
|
static int tas_snd_treble_put(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct tas *tas = snd_kcontrol_chip(kcontrol);
|
|
|
|
if (ucontrol->value.integer.value[0] < TAS3004_TREBLE_MIN ||
|
|
ucontrol->value.integer.value[0] > TAS3004_TREBLE_MAX)
|
|
return -EINVAL;
|
|
mutex_lock(&tas->mtx);
|
|
if (tas->treble == ucontrol->value.integer.value[0]) {
|
|
mutex_unlock(&tas->mtx);
|
|
return 0;
|
|
}
|
|
|
|
tas->treble = ucontrol->value.integer.value[0];
|
|
if (tas->hw_enabled)
|
|
tas_set_treble(tas);
|
|
mutex_unlock(&tas->mtx);
|
|
return 1;
|
|
}
|
|
|
|
static const struct snd_kcontrol_new treble_control = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "Treble",
|
|
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
|
|
.info = tas_snd_treble_info,
|
|
.get = tas_snd_treble_get,
|
|
.put = tas_snd_treble_put,
|
|
};
|
|
|
|
static int tas_snd_bass_info(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_info *uinfo)
|
|
{
|
|
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
|
|
uinfo->count = 1;
|
|
uinfo->value.integer.min = TAS3004_BASS_MIN;
|
|
uinfo->value.integer.max = TAS3004_BASS_MAX;
|
|
return 0;
|
|
}
|
|
|
|
static int tas_snd_bass_get(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct tas *tas = snd_kcontrol_chip(kcontrol);
|
|
|
|
mutex_lock(&tas->mtx);
|
|
ucontrol->value.integer.value[0] = tas->bass;
|
|
mutex_unlock(&tas->mtx);
|
|
return 0;
|
|
}
|
|
|
|
static int tas_snd_bass_put(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct tas *tas = snd_kcontrol_chip(kcontrol);
|
|
|
|
if (ucontrol->value.integer.value[0] < TAS3004_BASS_MIN ||
|
|
ucontrol->value.integer.value[0] > TAS3004_BASS_MAX)
|
|
return -EINVAL;
|
|
mutex_lock(&tas->mtx);
|
|
if (tas->bass == ucontrol->value.integer.value[0]) {
|
|
mutex_unlock(&tas->mtx);
|
|
return 0;
|
|
}
|
|
|
|
tas->bass = ucontrol->value.integer.value[0];
|
|
if (tas->hw_enabled)
|
|
tas_set_bass(tas);
|
|
mutex_unlock(&tas->mtx);
|
|
return 1;
|
|
}
|
|
|
|
static const struct snd_kcontrol_new bass_control = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "Bass",
|
|
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
|
|
.info = tas_snd_bass_info,
|
|
.get = tas_snd_bass_get,
|
|
.put = tas_snd_bass_put,
|
|
};
|
|
|
|
static struct transfer_info tas_transfers[] = {
|
|
{
|
|
/* input */
|
|
.formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S24_BE,
|
|
.rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
|
|
.transfer_in = 1,
|
|
},
|
|
{
|
|
/* output */
|
|
.formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S24_BE,
|
|
.rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
|
|
.transfer_in = 0,
|
|
},
|
|
{}
|
|
};
|
|
|
|
static int tas_usable(struct codec_info_item *cii,
|
|
struct transfer_info *ti,
|
|
struct transfer_info *out)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
static int tas_reset_init(struct tas *tas)
|
|
{
|
|
u8 tmp;
|
|
|
|
tas->codec.gpio->methods->all_amps_off(tas->codec.gpio);
|
|
msleep(5);
|
|
tas->codec.gpio->methods->set_hw_reset(tas->codec.gpio, 0);
|
|
msleep(5);
|
|
tas->codec.gpio->methods->set_hw_reset(tas->codec.gpio, 1);
|
|
msleep(20);
|
|
tas->codec.gpio->methods->set_hw_reset(tas->codec.gpio, 0);
|
|
msleep(10);
|
|
tas->codec.gpio->methods->all_amps_restore(tas->codec.gpio);
|
|
|
|
tmp = TAS_MCS_SCLK64 | TAS_MCS_SPORT_MODE_I2S | TAS_MCS_SPORT_WL_24BIT;
|
|
if (tas_write_reg(tas, TAS_REG_MCS, 1, &tmp))
|
|
goto outerr;
|
|
|
|
tas->acr |= TAS_ACR_ANALOG_PDOWN;
|
|
if (tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr))
|
|
goto outerr;
|
|
|
|
tmp = 0;
|
|
if (tas_write_reg(tas, TAS_REG_MCS2, 1, &tmp))
|
|
goto outerr;
|
|
|
|
tas3004_set_drc(tas);
|
|
|
|
/* Set treble & bass to 0dB */
|
|
tas->treble = TAS3004_TREBLE_ZERO;
|
|
tas->bass = TAS3004_BASS_ZERO;
|
|
tas_set_treble(tas);
|
|
tas_set_bass(tas);
|
|
|
|
tas->acr &= ~TAS_ACR_ANALOG_PDOWN;
|
|
if (tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr))
|
|
goto outerr;
|
|
|
|
return 0;
|
|
outerr:
|
|
return -ENODEV;
|
|
}
|
|
|
|
static int tas_switch_clock(struct codec_info_item *cii, enum clock_switch clock)
|
|
{
|
|
struct tas *tas = cii->codec_data;
|
|
|
|
switch(clock) {
|
|
case CLOCK_SWITCH_PREPARE_SLAVE:
|
|
/* Clocks are going away, mute mute mute */
|
|
tas->codec.gpio->methods->all_amps_off(tas->codec.gpio);
|
|
tas->hw_enabled = 0;
|
|
break;
|
|
case CLOCK_SWITCH_SLAVE:
|
|
/* Clocks are back, re-init the codec */
|
|
mutex_lock(&tas->mtx);
|
|
tas_reset_init(tas);
|
|
tas_set_volume(tas);
|
|
tas_set_mixer(tas);
|
|
tas->hw_enabled = 1;
|
|
tas->codec.gpio->methods->all_amps_restore(tas->codec.gpio);
|
|
mutex_unlock(&tas->mtx);
|
|
break;
|
|
default:
|
|
/* doesn't happen as of now */
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
/* we are controlled via i2c and assume that is always up
|
|
* If that wasn't the case, we'd have to suspend once
|
|
* our i2c device is suspended, and then take note of that! */
|
|
static int tas_suspend(struct tas *tas)
|
|
{
|
|
mutex_lock(&tas->mtx);
|
|
tas->hw_enabled = 0;
|
|
tas->acr |= TAS_ACR_ANALOG_PDOWN;
|
|
tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr);
|
|
mutex_unlock(&tas->mtx);
|
|
return 0;
|
|
}
|
|
|
|
static int tas_resume(struct tas *tas)
|
|
{
|
|
/* reset codec */
|
|
mutex_lock(&tas->mtx);
|
|
tas_reset_init(tas);
|
|
tas_set_volume(tas);
|
|
tas_set_mixer(tas);
|
|
tas->hw_enabled = 1;
|
|
mutex_unlock(&tas->mtx);
|
|
return 0;
|
|
}
|
|
|
|
static int _tas_suspend(struct codec_info_item *cii, pm_message_t state)
|
|
{
|
|
return tas_suspend(cii->codec_data);
|
|
}
|
|
|
|
static int _tas_resume(struct codec_info_item *cii)
|
|
{
|
|
return tas_resume(cii->codec_data);
|
|
}
|
|
#else /* CONFIG_PM */
|
|
#define _tas_suspend NULL
|
|
#define _tas_resume NULL
|
|
#endif /* CONFIG_PM */
|
|
|
|
static struct codec_info tas_codec_info = {
|
|
.transfers = tas_transfers,
|
|
/* in theory, we can drive it at 512 too...
|
|
* but so far the framework doesn't allow
|
|
* for that and I don't see much point in it. */
|
|
.sysclock_factor = 256,
|
|
/* same here, could be 32 for just one 16 bit format */
|
|
.bus_factor = 64,
|
|
.owner = THIS_MODULE,
|
|
.usable = tas_usable,
|
|
.switch_clock = tas_switch_clock,
|
|
.suspend = _tas_suspend,
|
|
.resume = _tas_resume,
|
|
};
|
|
|
|
static int tas_init_codec(struct aoa_codec *codec)
|
|
{
|
|
struct tas *tas = codec_to_tas(codec);
|
|
int err;
|
|
|
|
if (!tas->codec.gpio || !tas->codec.gpio->methods) {
|
|
printk(KERN_ERR PFX "gpios not assigned!!\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
mutex_lock(&tas->mtx);
|
|
if (tas_reset_init(tas)) {
|
|
printk(KERN_ERR PFX "tas failed to initialise\n");
|
|
mutex_unlock(&tas->mtx);
|
|
return -ENXIO;
|
|
}
|
|
tas->hw_enabled = 1;
|
|
mutex_unlock(&tas->mtx);
|
|
|
|
if (tas->codec.soundbus_dev->attach_codec(tas->codec.soundbus_dev,
|
|
aoa_get_card(),
|
|
&tas_codec_info, tas)) {
|
|
printk(KERN_ERR PFX "error attaching tas to soundbus\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (aoa_snd_device_new(SNDRV_DEV_CODEC, tas, &ops)) {
|
|
printk(KERN_ERR PFX "failed to create tas snd device!\n");
|
|
return -ENODEV;
|
|
}
|
|
err = aoa_snd_ctl_add(snd_ctl_new1(&volume_control, tas));
|
|
if (err)
|
|
goto error;
|
|
|
|
err = aoa_snd_ctl_add(snd_ctl_new1(&mute_control, tas));
|
|
if (err)
|
|
goto error;
|
|
|
|
err = aoa_snd_ctl_add(snd_ctl_new1(&pcm1_control, tas));
|
|
if (err)
|
|
goto error;
|
|
|
|
err = aoa_snd_ctl_add(snd_ctl_new1(&monitor_control, tas));
|
|
if (err)
|
|
goto error;
|
|
|
|
err = aoa_snd_ctl_add(snd_ctl_new1(&capture_source_control, tas));
|
|
if (err)
|
|
goto error;
|
|
|
|
err = aoa_snd_ctl_add(snd_ctl_new1(&drc_range_control, tas));
|
|
if (err)
|
|
goto error;
|
|
|
|
err = aoa_snd_ctl_add(snd_ctl_new1(&drc_switch_control, tas));
|
|
if (err)
|
|
goto error;
|
|
|
|
err = aoa_snd_ctl_add(snd_ctl_new1(&treble_control, tas));
|
|
if (err)
|
|
goto error;
|
|
|
|
err = aoa_snd_ctl_add(snd_ctl_new1(&bass_control, tas));
|
|
if (err)
|
|
goto error;
|
|
|
|
return 0;
|
|
error:
|
|
tas->codec.soundbus_dev->detach_codec(tas->codec.soundbus_dev, tas);
|
|
snd_device_free(aoa_get_card(), tas);
|
|
return err;
|
|
}
|
|
|
|
static void tas_exit_codec(struct aoa_codec *codec)
|
|
{
|
|
struct tas *tas = codec_to_tas(codec);
|
|
|
|
if (!tas->codec.soundbus_dev)
|
|
return;
|
|
tas->codec.soundbus_dev->detach_codec(tas->codec.soundbus_dev, tas);
|
|
}
|
|
|
|
|
|
static int tas_i2c_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct device_node *node = client->dev.of_node;
|
|
struct tas *tas;
|
|
|
|
tas = kzalloc(sizeof(struct tas), GFP_KERNEL);
|
|
|
|
if (!tas)
|
|
return -ENOMEM;
|
|
|
|
mutex_init(&tas->mtx);
|
|
tas->i2c = client;
|
|
i2c_set_clientdata(client, tas);
|
|
|
|
/* seems that half is a saner default */
|
|
tas->drc_range = TAS3004_DRC_MAX / 2;
|
|
|
|
strlcpy(tas->codec.name, "tas", MAX_CODEC_NAME_LEN);
|
|
tas->codec.owner = THIS_MODULE;
|
|
tas->codec.init = tas_init_codec;
|
|
tas->codec.exit = tas_exit_codec;
|
|
tas->codec.node = of_node_get(node);
|
|
|
|
if (aoa_codec_register(&tas->codec)) {
|
|
goto fail;
|
|
}
|
|
printk(KERN_DEBUG
|
|
"snd-aoa-codec-tas: tas found, addr 0x%02x on %pOF\n",
|
|
(unsigned int)client->addr, node);
|
|
return 0;
|
|
fail:
|
|
mutex_destroy(&tas->mtx);
|
|
kfree(tas);
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int tas_i2c_remove(struct i2c_client *client)
|
|
{
|
|
struct tas *tas = i2c_get_clientdata(client);
|
|
u8 tmp = TAS_ACR_ANALOG_PDOWN;
|
|
|
|
aoa_codec_unregister(&tas->codec);
|
|
of_node_put(tas->codec.node);
|
|
|
|
/* power down codec chip */
|
|
tas_write_reg(tas, TAS_REG_ACR, 1, &tmp);
|
|
|
|
mutex_destroy(&tas->mtx);
|
|
kfree(tas);
|
|
return 0;
|
|
}
|
|
|
|
static const struct i2c_device_id tas_i2c_id[] = {
|
|
{ "MAC,tas3004", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c,tas_i2c_id);
|
|
|
|
static struct i2c_driver tas_driver = {
|
|
.driver = {
|
|
.name = "aoa_codec_tas",
|
|
},
|
|
.probe = tas_i2c_probe,
|
|
.remove = tas_i2c_remove,
|
|
.id_table = tas_i2c_id,
|
|
};
|
|
|
|
module_i2c_driver(tas_driver);
|