mirror of https://gitee.com/openkylin/linux.git
1060 lines
27 KiB
C
1060 lines
27 KiB
C
/*
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* Apple Onboard Audio driver for Onyx 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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*
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* This is a driver for the pcm3052 codec chip (codenamed Onyx)
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* that is present in newer Apple hardware (with digital output).
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*
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* The Onyx codec has the following connections (listed by the bit
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* to be used in aoa_codec.connected):
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* 0: analog output
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* 1: digital output
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* 2: line input
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* 3: microphone input
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* Note that even though I know of no machine that has for example
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* the digital output connected but not the analog, I have handled
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* all the different cases in the code so that this driver may serve
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* as a good example of what to do.
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*
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* NOTE: This driver assumes that there's at most one chip to be
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* used with one alsa card, in form of creating all kinds
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* of mixer elements without regard for their existence.
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* But snd-aoa assumes that there's at most one card, so
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* this means you can only have one onyx on a system. This
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* should probably be fixed by changing the assumption of
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* having just a single card on a system, and making the
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* 'card' pointer accessible to anyone who needs it instead
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* of hiding it in the aoa_snd_* functions...
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*
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*/
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#include <linux/delay.h>
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#include <linux/module.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("pcm3052 (onyx) codec driver for snd-aoa");
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#include "onyx.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-onyx: "
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struct onyx {
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/* cache registers 65 to 80, they are write-only! */
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u8 cache[16];
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struct i2c_client *i2c;
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struct aoa_codec codec;
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u32 initialised:1,
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spdif_locked:1,
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analog_locked:1,
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original_mute:2;
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int open_count;
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struct codec_info *codec_info;
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/* mutex serializes concurrent access to the device
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* and this structure.
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*/
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struct mutex mutex;
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};
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#define codec_to_onyx(c) container_of(c, struct onyx, codec)
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/* both return 0 if all ok, else on error */
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static int onyx_read_register(struct onyx *onyx, u8 reg, u8 *value)
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{
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s32 v;
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if (reg != ONYX_REG_CONTROL) {
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*value = onyx->cache[reg-FIRSTREGISTER];
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return 0;
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}
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v = i2c_smbus_read_byte_data(onyx->i2c, reg);
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if (v < 0)
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return -1;
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*value = (u8)v;
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onyx->cache[ONYX_REG_CONTROL-FIRSTREGISTER] = *value;
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return 0;
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}
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static int onyx_write_register(struct onyx *onyx, u8 reg, u8 value)
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{
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int result;
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result = i2c_smbus_write_byte_data(onyx->i2c, reg, value);
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if (!result)
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onyx->cache[reg-FIRSTREGISTER] = value;
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return result;
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}
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/* alsa stuff */
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static int onyx_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 = onyx_dev_register,
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};
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/* this is necessary because most alsa mixer programs
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* can't properly handle the negative range */
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#define VOLUME_RANGE_SHIFT 128
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static int onyx_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 = -128 + VOLUME_RANGE_SHIFT;
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uinfo->value.integer.max = -1 + VOLUME_RANGE_SHIFT;
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return 0;
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}
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static int onyx_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 onyx *onyx = snd_kcontrol_chip(kcontrol);
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s8 l, r;
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mutex_lock(&onyx->mutex);
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onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_LEFT, &l);
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onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_RIGHT, &r);
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mutex_unlock(&onyx->mutex);
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ucontrol->value.integer.value[0] = l + VOLUME_RANGE_SHIFT;
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ucontrol->value.integer.value[1] = r + VOLUME_RANGE_SHIFT;
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return 0;
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}
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static int onyx_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 onyx *onyx = snd_kcontrol_chip(kcontrol);
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s8 l, r;
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if (ucontrol->value.integer.value[0] < -128 + VOLUME_RANGE_SHIFT ||
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ucontrol->value.integer.value[0] > -1 + VOLUME_RANGE_SHIFT)
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return -EINVAL;
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if (ucontrol->value.integer.value[1] < -128 + VOLUME_RANGE_SHIFT ||
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ucontrol->value.integer.value[1] > -1 + VOLUME_RANGE_SHIFT)
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return -EINVAL;
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mutex_lock(&onyx->mutex);
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onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_LEFT, &l);
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onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_RIGHT, &r);
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if (l + VOLUME_RANGE_SHIFT == ucontrol->value.integer.value[0] &&
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r + VOLUME_RANGE_SHIFT == ucontrol->value.integer.value[1]) {
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mutex_unlock(&onyx->mutex);
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return 0;
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}
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onyx_write_register(onyx, ONYX_REG_DAC_ATTEN_LEFT,
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ucontrol->value.integer.value[0]
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- VOLUME_RANGE_SHIFT);
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onyx_write_register(onyx, ONYX_REG_DAC_ATTEN_RIGHT,
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ucontrol->value.integer.value[1]
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- VOLUME_RANGE_SHIFT);
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mutex_unlock(&onyx->mutex);
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return 1;
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}
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static 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 = onyx_snd_vol_info,
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.get = onyx_snd_vol_get,
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.put = onyx_snd_vol_put,
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};
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/* like above, this is necessary because a lot
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* of alsa mixer programs don't handle ranges
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* that don't start at 0 properly.
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* even alsamixer is one of them... */
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#define INPUTGAIN_RANGE_SHIFT (-3)
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static int onyx_snd_inputgain_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 = 3 + INPUTGAIN_RANGE_SHIFT;
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uinfo->value.integer.max = 28 + INPUTGAIN_RANGE_SHIFT;
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return 0;
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}
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static int onyx_snd_inputgain_get(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct onyx *onyx = snd_kcontrol_chip(kcontrol);
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u8 ig;
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mutex_lock(&onyx->mutex);
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onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &ig);
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mutex_unlock(&onyx->mutex);
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ucontrol->value.integer.value[0] =
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(ig & ONYX_ADC_PGA_GAIN_MASK) + INPUTGAIN_RANGE_SHIFT;
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return 0;
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}
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static int onyx_snd_inputgain_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct onyx *onyx = snd_kcontrol_chip(kcontrol);
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u8 v, n;
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if (ucontrol->value.integer.value[0] < 3 + INPUTGAIN_RANGE_SHIFT ||
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ucontrol->value.integer.value[0] > 28 + INPUTGAIN_RANGE_SHIFT)
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return -EINVAL;
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mutex_lock(&onyx->mutex);
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onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &v);
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n = v;
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n &= ~ONYX_ADC_PGA_GAIN_MASK;
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n |= (ucontrol->value.integer.value[0] - INPUTGAIN_RANGE_SHIFT)
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& ONYX_ADC_PGA_GAIN_MASK;
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onyx_write_register(onyx, ONYX_REG_ADC_CONTROL, n);
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mutex_unlock(&onyx->mutex);
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return n != v;
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}
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static struct snd_kcontrol_new inputgain_control = {
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.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
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.name = "Master Capture Volume",
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.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
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.info = onyx_snd_inputgain_info,
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.get = onyx_snd_inputgain_get,
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.put = onyx_snd_inputgain_put,
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};
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static int onyx_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);
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}
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static int onyx_snd_capture_source_get(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct onyx *onyx = snd_kcontrol_chip(kcontrol);
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s8 v;
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mutex_lock(&onyx->mutex);
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onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &v);
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mutex_unlock(&onyx->mutex);
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ucontrol->value.enumerated.item[0] = !!(v&ONYX_ADC_INPUT_MIC);
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return 0;
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}
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static void onyx_set_capture_source(struct onyx *onyx, int mic)
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{
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s8 v;
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mutex_lock(&onyx->mutex);
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onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &v);
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v &= ~ONYX_ADC_INPUT_MIC;
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if (mic)
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v |= ONYX_ADC_INPUT_MIC;
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onyx_write_register(onyx, ONYX_REG_ADC_CONTROL, v);
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mutex_unlock(&onyx->mutex);
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}
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static int onyx_snd_capture_source_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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if (ucontrol->value.enumerated.item[0] > 1)
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return -EINVAL;
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onyx_set_capture_source(snd_kcontrol_chip(kcontrol),
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ucontrol->value.enumerated.item[0]);
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return 1;
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}
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static struct snd_kcontrol_new capture_source_control = {
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.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
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/* If we name this 'Input Source', it properly shows up in
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* alsamixer as a selection, * but it's shown under the
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* 'Playback' category.
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* If I name it 'Capture Source', it shows up in strange
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* ways (two bools of which one can be selected at a
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* time) but at least it's shown in the 'Capture'
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* category.
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* I was told that this was due to backward compatibility,
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* but I don't understand then why the mangling is *not*
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* done when I name it "Input Source".....
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*/
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.name = "Capture Source",
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.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
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.info = onyx_snd_capture_source_info,
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.get = onyx_snd_capture_source_get,
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.put = onyx_snd_capture_source_put,
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};
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#define onyx_snd_mute_info snd_ctl_boolean_stereo_info
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static int onyx_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 onyx *onyx = snd_kcontrol_chip(kcontrol);
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u8 c;
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mutex_lock(&onyx->mutex);
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onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &c);
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mutex_unlock(&onyx->mutex);
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ucontrol->value.integer.value[0] = !(c & ONYX_MUTE_LEFT);
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ucontrol->value.integer.value[1] = !(c & ONYX_MUTE_RIGHT);
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return 0;
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}
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static int onyx_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 onyx *onyx = snd_kcontrol_chip(kcontrol);
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u8 v = 0, c = 0;
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int err = -EBUSY;
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mutex_lock(&onyx->mutex);
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if (onyx->analog_locked)
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goto out_unlock;
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onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v);
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c = v;
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c &= ~(ONYX_MUTE_RIGHT | ONYX_MUTE_LEFT);
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if (!ucontrol->value.integer.value[0])
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c |= ONYX_MUTE_LEFT;
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if (!ucontrol->value.integer.value[1])
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c |= ONYX_MUTE_RIGHT;
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err = onyx_write_register(onyx, ONYX_REG_DAC_CONTROL, c);
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out_unlock:
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mutex_unlock(&onyx->mutex);
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return !err ? (v != c) : err;
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}
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static 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 = onyx_snd_mute_info,
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.get = onyx_snd_mute_get,
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.put = onyx_snd_mute_put,
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};
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#define onyx_snd_single_bit_info snd_ctl_boolean_mono_info
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#define FLAG_POLARITY_INVERT 1
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#define FLAG_SPDIFLOCK 2
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static int onyx_snd_single_bit_get(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct onyx *onyx = snd_kcontrol_chip(kcontrol);
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u8 c;
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long int pv = kcontrol->private_value;
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u8 polarity = (pv >> 16) & FLAG_POLARITY_INVERT;
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u8 address = (pv >> 8) & 0xff;
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u8 mask = pv & 0xff;
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mutex_lock(&onyx->mutex);
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onyx_read_register(onyx, address, &c);
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mutex_unlock(&onyx->mutex);
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ucontrol->value.integer.value[0] = !!(c & mask) ^ polarity;
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return 0;
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}
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static int onyx_snd_single_bit_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct onyx *onyx = snd_kcontrol_chip(kcontrol);
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u8 v = 0, c = 0;
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int err;
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long int pv = kcontrol->private_value;
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u8 polarity = (pv >> 16) & FLAG_POLARITY_INVERT;
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u8 spdiflock = (pv >> 16) & FLAG_SPDIFLOCK;
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u8 address = (pv >> 8) & 0xff;
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u8 mask = pv & 0xff;
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mutex_lock(&onyx->mutex);
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if (spdiflock && onyx->spdif_locked) {
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/* even if alsamixer doesn't care.. */
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err = -EBUSY;
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goto out_unlock;
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}
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onyx_read_register(onyx, address, &v);
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c = v;
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c &= ~(mask);
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if (!!ucontrol->value.integer.value[0] ^ polarity)
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c |= mask;
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err = onyx_write_register(onyx, address, c);
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out_unlock:
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mutex_unlock(&onyx->mutex);
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return !err ? (v != c) : err;
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}
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#define SINGLE_BIT(n, type, description, address, mask, flags) \
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static struct snd_kcontrol_new n##_control = { \
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.iface = SNDRV_CTL_ELEM_IFACE_##type, \
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.name = description, \
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.access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \
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.info = onyx_snd_single_bit_info, \
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.get = onyx_snd_single_bit_get, \
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.put = onyx_snd_single_bit_put, \
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.private_value = (flags << 16) | (address << 8) | mask \
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}
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SINGLE_BIT(spdif,
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MIXER,
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SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH),
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ONYX_REG_DIG_INFO4,
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ONYX_SPDIF_ENABLE,
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FLAG_SPDIFLOCK);
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SINGLE_BIT(ovr1,
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MIXER,
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"Oversampling Rate",
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ONYX_REG_DAC_CONTROL,
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ONYX_OVR1,
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0);
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SINGLE_BIT(flt0,
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MIXER,
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"Fast Digital Filter Rolloff",
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ONYX_REG_DAC_FILTER,
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ONYX_ROLLOFF_FAST,
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FLAG_POLARITY_INVERT);
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SINGLE_BIT(hpf,
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MIXER,
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"Highpass Filter",
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ONYX_REG_ADC_HPF_BYPASS,
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ONYX_HPF_DISABLE,
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FLAG_POLARITY_INVERT);
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SINGLE_BIT(dm12,
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MIXER,
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"Digital De-Emphasis",
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ONYX_REG_DAC_DEEMPH,
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ONYX_DIGDEEMPH_CTRL,
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0);
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static int onyx_spdif_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_IEC958;
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uinfo->count = 1;
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return 0;
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}
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static int onyx_spdif_mask_get(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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/* datasheet page 30, all others are 0 */
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ucontrol->value.iec958.status[0] = 0x3e;
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ucontrol->value.iec958.status[1] = 0xff;
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ucontrol->value.iec958.status[3] = 0x3f;
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ucontrol->value.iec958.status[4] = 0x0f;
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return 0;
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}
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|
|
static struct snd_kcontrol_new onyx_spdif_mask = {
|
|
.access = SNDRV_CTL_ELEM_ACCESS_READ,
|
|
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
|
|
.name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
|
|
.info = onyx_spdif_info,
|
|
.get = onyx_spdif_mask_get,
|
|
};
|
|
|
|
static int onyx_spdif_get(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct onyx *onyx = snd_kcontrol_chip(kcontrol);
|
|
u8 v;
|
|
|
|
mutex_lock(&onyx->mutex);
|
|
onyx_read_register(onyx, ONYX_REG_DIG_INFO1, &v);
|
|
ucontrol->value.iec958.status[0] = v & 0x3e;
|
|
|
|
onyx_read_register(onyx, ONYX_REG_DIG_INFO2, &v);
|
|
ucontrol->value.iec958.status[1] = v;
|
|
|
|
onyx_read_register(onyx, ONYX_REG_DIG_INFO3, &v);
|
|
ucontrol->value.iec958.status[3] = v & 0x3f;
|
|
|
|
onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v);
|
|
ucontrol->value.iec958.status[4] = v & 0x0f;
|
|
mutex_unlock(&onyx->mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int onyx_spdif_put(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct onyx *onyx = snd_kcontrol_chip(kcontrol);
|
|
u8 v;
|
|
|
|
mutex_lock(&onyx->mutex);
|
|
onyx_read_register(onyx, ONYX_REG_DIG_INFO1, &v);
|
|
v = (v & ~0x3e) | (ucontrol->value.iec958.status[0] & 0x3e);
|
|
onyx_write_register(onyx, ONYX_REG_DIG_INFO1, v);
|
|
|
|
v = ucontrol->value.iec958.status[1];
|
|
onyx_write_register(onyx, ONYX_REG_DIG_INFO2, v);
|
|
|
|
onyx_read_register(onyx, ONYX_REG_DIG_INFO3, &v);
|
|
v = (v & ~0x3f) | (ucontrol->value.iec958.status[3] & 0x3f);
|
|
onyx_write_register(onyx, ONYX_REG_DIG_INFO3, v);
|
|
|
|
onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v);
|
|
v = (v & ~0x0f) | (ucontrol->value.iec958.status[4] & 0x0f);
|
|
onyx_write_register(onyx, ONYX_REG_DIG_INFO4, v);
|
|
mutex_unlock(&onyx->mutex);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static struct snd_kcontrol_new onyx_spdif_ctrl = {
|
|
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
|
|
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
|
|
.name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
|
|
.info = onyx_spdif_info,
|
|
.get = onyx_spdif_get,
|
|
.put = onyx_spdif_put,
|
|
};
|
|
|
|
/* our registers */
|
|
|
|
static u8 register_map[] = {
|
|
ONYX_REG_DAC_ATTEN_LEFT,
|
|
ONYX_REG_DAC_ATTEN_RIGHT,
|
|
ONYX_REG_CONTROL,
|
|
ONYX_REG_DAC_CONTROL,
|
|
ONYX_REG_DAC_DEEMPH,
|
|
ONYX_REG_DAC_FILTER,
|
|
ONYX_REG_DAC_OUTPHASE,
|
|
ONYX_REG_ADC_CONTROL,
|
|
ONYX_REG_ADC_HPF_BYPASS,
|
|
ONYX_REG_DIG_INFO1,
|
|
ONYX_REG_DIG_INFO2,
|
|
ONYX_REG_DIG_INFO3,
|
|
ONYX_REG_DIG_INFO4
|
|
};
|
|
|
|
static u8 initial_values[ARRAY_SIZE(register_map)] = {
|
|
0x80, 0x80, /* muted */
|
|
ONYX_MRST | ONYX_SRST, /* but handled specially! */
|
|
ONYX_MUTE_LEFT | ONYX_MUTE_RIGHT,
|
|
0, /* no deemphasis */
|
|
ONYX_DAC_FILTER_ALWAYS,
|
|
ONYX_OUTPHASE_INVERTED,
|
|
(-1 /*dB*/ + 8) & 0xF, /* line in selected, -1 dB gain*/
|
|
ONYX_ADC_HPF_ALWAYS,
|
|
(1<<2), /* pcm audio */
|
|
2, /* category: pcm coder */
|
|
0, /* sampling frequency 44.1 kHz, clock accuracy level II */
|
|
1 /* 24 bit depth */
|
|
};
|
|
|
|
/* reset registers of chip, either to initial or to previous values */
|
|
static int onyx_register_init(struct onyx *onyx)
|
|
{
|
|
int i;
|
|
u8 val;
|
|
u8 regs[sizeof(initial_values)];
|
|
|
|
if (!onyx->initialised) {
|
|
memcpy(regs, initial_values, sizeof(initial_values));
|
|
if (onyx_read_register(onyx, ONYX_REG_CONTROL, &val))
|
|
return -1;
|
|
val &= ~ONYX_SILICONVERSION;
|
|
val |= initial_values[3];
|
|
regs[3] = val;
|
|
} else {
|
|
for (i=0; i<sizeof(register_map); i++)
|
|
regs[i] = onyx->cache[register_map[i]-FIRSTREGISTER];
|
|
}
|
|
|
|
for (i=0; i<sizeof(register_map); i++) {
|
|
if (onyx_write_register(onyx, register_map[i], regs[i]))
|
|
return -1;
|
|
}
|
|
onyx->initialised = 1;
|
|
return 0;
|
|
}
|
|
|
|
static struct transfer_info onyx_transfers[] = {
|
|
/* this is first so we can skip it if no input is present...
|
|
* No hardware exists with that, but it's here as an example
|
|
* of what to do :) */
|
|
{
|
|
/* analog input */
|
|
.formats = SNDRV_PCM_FMTBIT_S8 |
|
|
SNDRV_PCM_FMTBIT_S16_BE |
|
|
SNDRV_PCM_FMTBIT_S24_BE,
|
|
.rates = SNDRV_PCM_RATE_8000_96000,
|
|
.transfer_in = 1,
|
|
.must_be_clock_source = 0,
|
|
.tag = 0,
|
|
},
|
|
{
|
|
/* if analog and digital are currently off, anything should go,
|
|
* so this entry describes everything we can do... */
|
|
.formats = SNDRV_PCM_FMTBIT_S8 |
|
|
SNDRV_PCM_FMTBIT_S16_BE |
|
|
SNDRV_PCM_FMTBIT_S24_BE
|
|
#ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE
|
|
| SNDRV_PCM_FMTBIT_COMPRESSED_16BE
|
|
#endif
|
|
,
|
|
.rates = SNDRV_PCM_RATE_8000_96000,
|
|
.tag = 0,
|
|
},
|
|
{
|
|
/* analog output */
|
|
.formats = SNDRV_PCM_FMTBIT_S8 |
|
|
SNDRV_PCM_FMTBIT_S16_BE |
|
|
SNDRV_PCM_FMTBIT_S24_BE,
|
|
.rates = SNDRV_PCM_RATE_8000_96000,
|
|
.transfer_in = 0,
|
|
.must_be_clock_source = 0,
|
|
.tag = 1,
|
|
},
|
|
{
|
|
/* digital pcm output, also possible for analog out */
|
|
.formats = SNDRV_PCM_FMTBIT_S8 |
|
|
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,
|
|
.must_be_clock_source = 0,
|
|
.tag = 2,
|
|
},
|
|
#ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE
|
|
/* Once alsa gets supports for this kind of thing we can add it... */
|
|
{
|
|
/* digital compressed output */
|
|
.formats = SNDRV_PCM_FMTBIT_COMPRESSED_16BE,
|
|
.rates = SNDRV_PCM_RATE_32000 |
|
|
SNDRV_PCM_RATE_44100 |
|
|
SNDRV_PCM_RATE_48000,
|
|
.tag = 2,
|
|
},
|
|
#endif
|
|
{}
|
|
};
|
|
|
|
static int onyx_usable(struct codec_info_item *cii,
|
|
struct transfer_info *ti,
|
|
struct transfer_info *out)
|
|
{
|
|
u8 v;
|
|
struct onyx *onyx = cii->codec_data;
|
|
int spdif_enabled, analog_enabled;
|
|
|
|
mutex_lock(&onyx->mutex);
|
|
onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v);
|
|
spdif_enabled = !!(v & ONYX_SPDIF_ENABLE);
|
|
onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v);
|
|
analog_enabled =
|
|
(v & (ONYX_MUTE_RIGHT|ONYX_MUTE_LEFT))
|
|
!= (ONYX_MUTE_RIGHT|ONYX_MUTE_LEFT);
|
|
mutex_unlock(&onyx->mutex);
|
|
|
|
switch (ti->tag) {
|
|
case 0: return 1;
|
|
case 1: return analog_enabled;
|
|
case 2: return spdif_enabled;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int onyx_prepare(struct codec_info_item *cii,
|
|
struct bus_info *bi,
|
|
struct snd_pcm_substream *substream)
|
|
{
|
|
u8 v;
|
|
struct onyx *onyx = cii->codec_data;
|
|
int err = -EBUSY;
|
|
|
|
mutex_lock(&onyx->mutex);
|
|
|
|
#ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE
|
|
if (substream->runtime->format == SNDRV_PCM_FMTBIT_COMPRESSED_16BE) {
|
|
/* mute and lock analog output */
|
|
onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v);
|
|
if (onyx_write_register(onyx,
|
|
ONYX_REG_DAC_CONTROL,
|
|
v | ONYX_MUTE_RIGHT | ONYX_MUTE_LEFT))
|
|
goto out_unlock;
|
|
onyx->analog_locked = 1;
|
|
err = 0;
|
|
goto out_unlock;
|
|
}
|
|
#endif
|
|
switch (substream->runtime->rate) {
|
|
case 32000:
|
|
case 44100:
|
|
case 48000:
|
|
/* these rates are ok for all outputs */
|
|
/* FIXME: program spdif channel control bits here so that
|
|
* userspace doesn't have to if it only plays pcm! */
|
|
err = 0;
|
|
goto out_unlock;
|
|
default:
|
|
/* got some rate that the digital output can't do,
|
|
* so disable and lock it */
|
|
onyx_read_register(cii->codec_data, ONYX_REG_DIG_INFO4, &v);
|
|
if (onyx_write_register(onyx,
|
|
ONYX_REG_DIG_INFO4,
|
|
v & ~ONYX_SPDIF_ENABLE))
|
|
goto out_unlock;
|
|
onyx->spdif_locked = 1;
|
|
err = 0;
|
|
goto out_unlock;
|
|
}
|
|
|
|
out_unlock:
|
|
mutex_unlock(&onyx->mutex);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int onyx_open(struct codec_info_item *cii,
|
|
struct snd_pcm_substream *substream)
|
|
{
|
|
struct onyx *onyx = cii->codec_data;
|
|
|
|
mutex_lock(&onyx->mutex);
|
|
onyx->open_count++;
|
|
mutex_unlock(&onyx->mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int onyx_close(struct codec_info_item *cii,
|
|
struct snd_pcm_substream *substream)
|
|
{
|
|
struct onyx *onyx = cii->codec_data;
|
|
|
|
mutex_lock(&onyx->mutex);
|
|
onyx->open_count--;
|
|
if (!onyx->open_count)
|
|
onyx->spdif_locked = onyx->analog_locked = 0;
|
|
mutex_unlock(&onyx->mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int onyx_switch_clock(struct codec_info_item *cii,
|
|
enum clock_switch what)
|
|
{
|
|
struct onyx *onyx = cii->codec_data;
|
|
|
|
mutex_lock(&onyx->mutex);
|
|
/* this *MUST* be more elaborate later... */
|
|
switch (what) {
|
|
case CLOCK_SWITCH_PREPARE_SLAVE:
|
|
onyx->codec.gpio->methods->all_amps_off(onyx->codec.gpio);
|
|
break;
|
|
case CLOCK_SWITCH_SLAVE:
|
|
onyx->codec.gpio->methods->all_amps_restore(onyx->codec.gpio);
|
|
break;
|
|
default: /* silence warning */
|
|
break;
|
|
}
|
|
mutex_unlock(&onyx->mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
|
|
static int onyx_suspend(struct codec_info_item *cii, pm_message_t state)
|
|
{
|
|
struct onyx *onyx = cii->codec_data;
|
|
u8 v;
|
|
int err = -ENXIO;
|
|
|
|
mutex_lock(&onyx->mutex);
|
|
if (onyx_read_register(onyx, ONYX_REG_CONTROL, &v))
|
|
goto out_unlock;
|
|
onyx_write_register(onyx, ONYX_REG_CONTROL, v | ONYX_ADPSV | ONYX_DAPSV);
|
|
/* Apple does a sleep here but the datasheet says to do it on resume */
|
|
err = 0;
|
|
out_unlock:
|
|
mutex_unlock(&onyx->mutex);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int onyx_resume(struct codec_info_item *cii)
|
|
{
|
|
struct onyx *onyx = cii->codec_data;
|
|
u8 v;
|
|
int err = -ENXIO;
|
|
|
|
mutex_lock(&onyx->mutex);
|
|
|
|
/* reset codec */
|
|
onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0);
|
|
msleep(1);
|
|
onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 1);
|
|
msleep(1);
|
|
onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0);
|
|
msleep(1);
|
|
|
|
/* take codec out of suspend (if it still is after reset) */
|
|
if (onyx_read_register(onyx, ONYX_REG_CONTROL, &v))
|
|
goto out_unlock;
|
|
onyx_write_register(onyx, ONYX_REG_CONTROL, v & ~(ONYX_ADPSV | ONYX_DAPSV));
|
|
/* FIXME: should divide by sample rate, but 8k is the lowest we go */
|
|
msleep(2205000/8000);
|
|
/* reset all values */
|
|
onyx_register_init(onyx);
|
|
err = 0;
|
|
out_unlock:
|
|
mutex_unlock(&onyx->mutex);
|
|
|
|
return err;
|
|
}
|
|
|
|
#endif /* CONFIG_PM */
|
|
|
|
static struct codec_info onyx_codec_info = {
|
|
.transfers = onyx_transfers,
|
|
.sysclock_factor = 256,
|
|
.bus_factor = 64,
|
|
.owner = THIS_MODULE,
|
|
.usable = onyx_usable,
|
|
.prepare = onyx_prepare,
|
|
.open = onyx_open,
|
|
.close = onyx_close,
|
|
.switch_clock = onyx_switch_clock,
|
|
#ifdef CONFIG_PM
|
|
.suspend = onyx_suspend,
|
|
.resume = onyx_resume,
|
|
#endif
|
|
};
|
|
|
|
static int onyx_init_codec(struct aoa_codec *codec)
|
|
{
|
|
struct onyx *onyx = codec_to_onyx(codec);
|
|
struct snd_kcontrol *ctl;
|
|
struct codec_info *ci = &onyx_codec_info;
|
|
u8 v;
|
|
int err;
|
|
|
|
if (!onyx->codec.gpio || !onyx->codec.gpio->methods) {
|
|
printk(KERN_ERR PFX "gpios not assigned!!\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0);
|
|
msleep(1);
|
|
onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 1);
|
|
msleep(1);
|
|
onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0);
|
|
msleep(1);
|
|
|
|
if (onyx_register_init(onyx)) {
|
|
printk(KERN_ERR PFX "failed to initialise onyx registers\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (aoa_snd_device_new(SNDRV_DEV_CODEC, onyx, &ops)) {
|
|
printk(KERN_ERR PFX "failed to create onyx snd device!\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* nothing connected? what a joke! */
|
|
if ((onyx->codec.connected & 0xF) == 0)
|
|
return -ENOTCONN;
|
|
|
|
/* if no inputs are present... */
|
|
if ((onyx->codec.connected & 0xC) == 0) {
|
|
if (!onyx->codec_info)
|
|
onyx->codec_info = kmalloc(sizeof(struct codec_info), GFP_KERNEL);
|
|
if (!onyx->codec_info)
|
|
return -ENOMEM;
|
|
ci = onyx->codec_info;
|
|
*ci = onyx_codec_info;
|
|
ci->transfers++;
|
|
}
|
|
|
|
/* if no outputs are present... */
|
|
if ((onyx->codec.connected & 3) == 0) {
|
|
if (!onyx->codec_info)
|
|
onyx->codec_info = kmalloc(sizeof(struct codec_info), GFP_KERNEL);
|
|
if (!onyx->codec_info)
|
|
return -ENOMEM;
|
|
ci = onyx->codec_info;
|
|
/* this is fine as there have to be inputs
|
|
* if we end up in this part of the code */
|
|
*ci = onyx_codec_info;
|
|
ci->transfers[1].formats = 0;
|
|
}
|
|
|
|
if (onyx->codec.soundbus_dev->attach_codec(onyx->codec.soundbus_dev,
|
|
aoa_get_card(),
|
|
ci, onyx)) {
|
|
printk(KERN_ERR PFX "error creating onyx pcm\n");
|
|
return -ENODEV;
|
|
}
|
|
#define ADDCTL(n) \
|
|
do { \
|
|
ctl = snd_ctl_new1(&n, onyx); \
|
|
if (ctl) { \
|
|
ctl->id.device = \
|
|
onyx->codec.soundbus_dev->pcm->device; \
|
|
err = aoa_snd_ctl_add(ctl); \
|
|
if (err) \
|
|
goto error; \
|
|
} \
|
|
} while (0)
|
|
|
|
if (onyx->codec.soundbus_dev->pcm) {
|
|
/* give the user appropriate controls
|
|
* depending on what inputs are connected */
|
|
if ((onyx->codec.connected & 0xC) == 0xC)
|
|
ADDCTL(capture_source_control);
|
|
else if (onyx->codec.connected & 4)
|
|
onyx_set_capture_source(onyx, 0);
|
|
else
|
|
onyx_set_capture_source(onyx, 1);
|
|
if (onyx->codec.connected & 0xC)
|
|
ADDCTL(inputgain_control);
|
|
|
|
/* depending on what output is connected,
|
|
* give the user appropriate controls */
|
|
if (onyx->codec.connected & 1) {
|
|
ADDCTL(volume_control);
|
|
ADDCTL(mute_control);
|
|
ADDCTL(ovr1_control);
|
|
ADDCTL(flt0_control);
|
|
ADDCTL(hpf_control);
|
|
ADDCTL(dm12_control);
|
|
/* spdif control defaults to off */
|
|
}
|
|
if (onyx->codec.connected & 2) {
|
|
ADDCTL(onyx_spdif_mask);
|
|
ADDCTL(onyx_spdif_ctrl);
|
|
}
|
|
if ((onyx->codec.connected & 3) == 3)
|
|
ADDCTL(spdif_control);
|
|
/* if only S/PDIF is connected, enable it unconditionally */
|
|
if ((onyx->codec.connected & 3) == 2) {
|
|
onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v);
|
|
v |= ONYX_SPDIF_ENABLE;
|
|
onyx_write_register(onyx, ONYX_REG_DIG_INFO4, v);
|
|
}
|
|
}
|
|
#undef ADDCTL
|
|
printk(KERN_INFO PFX "attached to onyx codec via i2c\n");
|
|
|
|
return 0;
|
|
error:
|
|
onyx->codec.soundbus_dev->detach_codec(onyx->codec.soundbus_dev, onyx);
|
|
snd_device_free(aoa_get_card(), onyx);
|
|
return err;
|
|
}
|
|
|
|
static void onyx_exit_codec(struct aoa_codec *codec)
|
|
{
|
|
struct onyx *onyx = codec_to_onyx(codec);
|
|
|
|
if (!onyx->codec.soundbus_dev) {
|
|
printk(KERN_ERR PFX "onyx_exit_codec called without soundbus_dev!\n");
|
|
return;
|
|
}
|
|
onyx->codec.soundbus_dev->detach_codec(onyx->codec.soundbus_dev, onyx);
|
|
}
|
|
|
|
static int onyx_i2c_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct device_node *node = client->dev.of_node;
|
|
struct onyx *onyx;
|
|
u8 dummy;
|
|
|
|
onyx = kzalloc(sizeof(struct onyx), GFP_KERNEL);
|
|
|
|
if (!onyx)
|
|
return -ENOMEM;
|
|
|
|
mutex_init(&onyx->mutex);
|
|
onyx->i2c = client;
|
|
i2c_set_clientdata(client, onyx);
|
|
|
|
/* we try to read from register ONYX_REG_CONTROL
|
|
* to check if the codec is present */
|
|
if (onyx_read_register(onyx, ONYX_REG_CONTROL, &dummy) != 0) {
|
|
printk(KERN_ERR PFX "failed to read control register\n");
|
|
goto fail;
|
|
}
|
|
|
|
strlcpy(onyx->codec.name, "onyx", MAX_CODEC_NAME_LEN);
|
|
onyx->codec.owner = THIS_MODULE;
|
|
onyx->codec.init = onyx_init_codec;
|
|
onyx->codec.exit = onyx_exit_codec;
|
|
onyx->codec.node = of_node_get(node);
|
|
|
|
if (aoa_codec_register(&onyx->codec)) {
|
|
goto fail;
|
|
}
|
|
printk(KERN_DEBUG PFX "created and attached onyx instance\n");
|
|
return 0;
|
|
fail:
|
|
kfree(onyx);
|
|
return -ENODEV;
|
|
}
|
|
|
|
static int onyx_i2c_remove(struct i2c_client *client)
|
|
{
|
|
struct onyx *onyx = i2c_get_clientdata(client);
|
|
|
|
aoa_codec_unregister(&onyx->codec);
|
|
of_node_put(onyx->codec.node);
|
|
kfree(onyx->codec_info);
|
|
kfree(onyx);
|
|
return 0;
|
|
}
|
|
|
|
static const struct i2c_device_id onyx_i2c_id[] = {
|
|
{ "MAC,pcm3052", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c,onyx_i2c_id);
|
|
|
|
static struct i2c_driver onyx_driver = {
|
|
.driver = {
|
|
.name = "aoa_codec_onyx",
|
|
},
|
|
.probe = onyx_i2c_probe,
|
|
.remove = onyx_i2c_remove,
|
|
.id_table = onyx_i2c_id,
|
|
};
|
|
|
|
module_i2c_driver(onyx_driver);
|