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linux/sound/usb/6fire/control.c

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/*
* Linux driver for TerraTec DMX 6Fire USB
*
* Mixer control
*
* Author: Torsten Schenk <torsten.schenk@zoho.com>
* Created: Jan 01, 2011
* Copyright: (C) Torsten Schenk
*
* Thanks to:
* - Holger Ruckdeschel: he found out how to control individual channel
* volumes and introduced mute switch
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/interrupt.h>
#include <sound/control.h>
#include <sound/tlv.h>
#include "control.h"
#include "comm.h"
#include "chip.h"
static char *opt_coax_texts[2] = { "Optical", "Coax" };
static char *line_phono_texts[2] = { "Line", "Phono" };
/*
* data that needs to be sent to device. sets up card internal stuff.
* values dumped from windows driver and filtered by trial'n'error.
*/
static const struct {
u8 type;
u8 reg;
u8 value;
}
init_data[] = {
{ 0x22, 0x00, 0x00 }, { 0x20, 0x00, 0x08 }, { 0x22, 0x01, 0x01 },
{ 0x20, 0x01, 0x08 }, { 0x22, 0x02, 0x00 }, { 0x20, 0x02, 0x08 },
{ 0x22, 0x03, 0x00 }, { 0x20, 0x03, 0x08 }, { 0x22, 0x04, 0x00 },
{ 0x20, 0x04, 0x08 }, { 0x22, 0x05, 0x01 }, { 0x20, 0x05, 0x08 },
{ 0x22, 0x04, 0x01 }, { 0x12, 0x04, 0x00 }, { 0x12, 0x05, 0x00 },
{ 0x12, 0x0d, 0x38 }, { 0x12, 0x21, 0x82 }, { 0x12, 0x22, 0x80 },
{ 0x12, 0x23, 0x00 }, { 0x12, 0x06, 0x02 }, { 0x12, 0x03, 0x00 },
{ 0x12, 0x02, 0x00 }, { 0x22, 0x03, 0x01 },
{ 0 } /* TERMINATING ENTRY */
};
static const int rates_altsetting[] = { 1, 1, 2, 2, 3, 3 };
/* values to write to soundcard register for all samplerates */
static const u16 rates_6fire_vl[] = {0x00, 0x01, 0x00, 0x01, 0x00, 0x01};
static const u16 rates_6fire_vh[] = {0x11, 0x11, 0x10, 0x10, 0x00, 0x00};
static DECLARE_TLV_DB_MINMAX(tlv_output, -9000, 0);
static DECLARE_TLV_DB_MINMAX(tlv_input, -1500, 1500);
enum {
DIGITAL_THRU_ONLY_SAMPLERATE = 3
};
static void usb6fire_control_output_vol_update(struct control_runtime *rt)
{
struct comm_runtime *comm_rt = rt->chip->comm;
int i;
if (comm_rt)
for (i = 0; i < 6; i++)
if (!(rt->ovol_updated & (1 << i))) {
comm_rt->write8(comm_rt, 0x12, 0x0f + i,
180 - rt->output_vol[i]);
rt->ovol_updated |= 1 << i;
}
}
static void usb6fire_control_output_mute_update(struct control_runtime *rt)
{
struct comm_runtime *comm_rt = rt->chip->comm;
if (comm_rt)
comm_rt->write8(comm_rt, 0x12, 0x0e, ~rt->output_mute);
}
static void usb6fire_control_input_vol_update(struct control_runtime *rt)
{
struct comm_runtime *comm_rt = rt->chip->comm;
int i;
if (comm_rt)
for (i = 0; i < 2; i++)
if (!(rt->ivol_updated & (1 << i))) {
comm_rt->write8(comm_rt, 0x12, 0x1c + i,
rt->input_vol[i] & 0x3f);
rt->ivol_updated |= 1 << i;
}
}
static void usb6fire_control_line_phono_update(struct control_runtime *rt)
{
struct comm_runtime *comm_rt = rt->chip->comm;
if (comm_rt) {
comm_rt->write8(comm_rt, 0x22, 0x02, rt->line_phono_switch);
comm_rt->write8(comm_rt, 0x21, 0x02, rt->line_phono_switch);
}
}
static void usb6fire_control_opt_coax_update(struct control_runtime *rt)
{
struct comm_runtime *comm_rt = rt->chip->comm;
if (comm_rt) {
comm_rt->write8(comm_rt, 0x22, 0x00, rt->opt_coax_switch);
comm_rt->write8(comm_rt, 0x21, 0x00, rt->opt_coax_switch);
}
}
static int usb6fire_control_set_rate(struct control_runtime *rt, int rate)
{
int ret;
struct usb_device *device = rt->chip->dev;
struct comm_runtime *comm_rt = rt->chip->comm;
if (rate < 0 || rate >= CONTROL_N_RATES)
return -EINVAL;
ret = usb_set_interface(device, 1, rates_altsetting[rate]);
if (ret < 0)
return ret;
/* set soundcard clock */
ret = comm_rt->write16(comm_rt, 0x02, 0x01, rates_6fire_vl[rate],
rates_6fire_vh[rate]);
if (ret < 0)
return ret;
return 0;
}
static int usb6fire_control_set_channels(
struct control_runtime *rt, int n_analog_out,
int n_analog_in, bool spdif_out, bool spdif_in)
{
int ret;
struct comm_runtime *comm_rt = rt->chip->comm;
/* enable analog inputs and outputs
* (one bit per stereo-channel) */
ret = comm_rt->write16(comm_rt, 0x02, 0x02,
(1 << (n_analog_out / 2)) - 1,
(1 << (n_analog_in / 2)) - 1);
if (ret < 0)
return ret;
/* disable digital inputs and outputs */
/* TODO: use spdif_x to enable/disable digital channels */
ret = comm_rt->write16(comm_rt, 0x02, 0x03, 0x00, 0x00);
if (ret < 0)
return ret;
return 0;
}
static int usb6fire_control_streaming_update(struct control_runtime *rt)
{
struct comm_runtime *comm_rt = rt->chip->comm;
if (comm_rt) {
if (!rt->usb_streaming && rt->digital_thru_switch)
usb6fire_control_set_rate(rt,
DIGITAL_THRU_ONLY_SAMPLERATE);
return comm_rt->write16(comm_rt, 0x02, 0x00, 0x00,
(rt->usb_streaming ? 0x01 : 0x00) |
(rt->digital_thru_switch ? 0x08 : 0x00));
}
return -EINVAL;
}
static int usb6fire_control_output_vol_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 2;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 180;
return 0;
}
static int usb6fire_control_output_vol_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
unsigned int ch = kcontrol->private_value;
int changed = 0;
if (ch > 4) {
snd_printk(KERN_ERR PREFIX "Invalid channel in volume control.");
return -EINVAL;
}
if (rt->output_vol[ch] != ucontrol->value.integer.value[0]) {
rt->output_vol[ch] = ucontrol->value.integer.value[0];
rt->ovol_updated &= ~(1 << ch);
changed = 1;
}
if (rt->output_vol[ch + 1] != ucontrol->value.integer.value[1]) {
rt->output_vol[ch + 1] = ucontrol->value.integer.value[1];
rt->ovol_updated &= ~(2 << ch);
changed = 1;
}
if (changed)
usb6fire_control_output_vol_update(rt);
return changed;
}
static int usb6fire_control_output_vol_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
unsigned int ch = kcontrol->private_value;
if (ch > 4) {
snd_printk(KERN_ERR PREFIX "Invalid channel in volume control.");
return -EINVAL;
}
ucontrol->value.integer.value[0] = rt->output_vol[ch];
ucontrol->value.integer.value[1] = rt->output_vol[ch + 1];
return 0;
}
static int usb6fire_control_output_mute_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
unsigned int ch = kcontrol->private_value;
u8 old = rt->output_mute;
u8 value = 0;
if (ch > 4) {
snd_printk(KERN_ERR PREFIX "Invalid channel in volume control.");
return -EINVAL;
}
rt->output_mute &= ~(3 << ch);
if (ucontrol->value.integer.value[0])
value |= 1;
if (ucontrol->value.integer.value[1])
value |= 2;
rt->output_mute |= value << ch;
if (rt->output_mute != old)
usb6fire_control_output_mute_update(rt);
return rt->output_mute != old;
}
static int usb6fire_control_output_mute_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
unsigned int ch = kcontrol->private_value;
u8 value = rt->output_mute >> ch;
if (ch > 4) {
snd_printk(KERN_ERR PREFIX "Invalid channel in volume control.");
return -EINVAL;
}
ucontrol->value.integer.value[0] = 1 & value;
value >>= 1;
ucontrol->value.integer.value[1] = 1 & value;
return 0;
}
static int usb6fire_control_input_vol_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 2;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 30;
return 0;
}
static int usb6fire_control_input_vol_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
int changed = 0;
if (rt->input_vol[0] != ucontrol->value.integer.value[0]) {
rt->input_vol[0] = ucontrol->value.integer.value[0] - 15;
rt->ivol_updated &= ~(1 << 0);
changed = 1;
}
if (rt->input_vol[1] != ucontrol->value.integer.value[1]) {
rt->input_vol[1] = ucontrol->value.integer.value[1] - 15;
rt->ivol_updated &= ~(1 << 1);
changed = 1;
}
if (changed)
usb6fire_control_input_vol_update(rt);
return changed;
}
static int usb6fire_control_input_vol_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
ucontrol->value.integer.value[0] = rt->input_vol[0] + 15;
ucontrol->value.integer.value[1] = rt->input_vol[1] + 15;
return 0;
}
static int usb6fire_control_line_phono_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = 1;
uinfo->value.enumerated.items = 2;
if (uinfo->value.enumerated.item > 1)
uinfo->value.enumerated.item = 1;
strcpy(uinfo->value.enumerated.name,
line_phono_texts[uinfo->value.enumerated.item]);
return 0;
}
static int usb6fire_control_line_phono_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
int changed = 0;
if (rt->line_phono_switch != ucontrol->value.integer.value[0]) {
rt->line_phono_switch = ucontrol->value.integer.value[0];
usb6fire_control_line_phono_update(rt);
changed = 1;
}
return changed;
}
static int usb6fire_control_line_phono_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
ucontrol->value.integer.value[0] = rt->line_phono_switch;
return 0;
}
static int usb6fire_control_opt_coax_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = 1;
uinfo->value.enumerated.items = 2;
if (uinfo->value.enumerated.item > 1)
uinfo->value.enumerated.item = 1;
strcpy(uinfo->value.enumerated.name,
opt_coax_texts[uinfo->value.enumerated.item]);
return 0;
}
static int usb6fire_control_opt_coax_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
int changed = 0;
if (rt->opt_coax_switch != ucontrol->value.enumerated.item[0]) {
rt->opt_coax_switch = ucontrol->value.enumerated.item[0];
usb6fire_control_opt_coax_update(rt);
changed = 1;
}
return changed;
}
static int usb6fire_control_opt_coax_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
ucontrol->value.enumerated.item[0] = rt->opt_coax_switch;
return 0;
}
static int usb6fire_control_digital_thru_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
int changed = 0;
if (rt->digital_thru_switch != ucontrol->value.integer.value[0]) {
rt->digital_thru_switch = ucontrol->value.integer.value[0];
usb6fire_control_streaming_update(rt);
changed = 1;
}
return changed;
}
static int usb6fire_control_digital_thru_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
ucontrol->value.integer.value[0] = rt->digital_thru_switch;
return 0;
}
static struct snd_kcontrol_new vol_elements[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Analog Playback Volume",
.index = 0,
.private_value = 0,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ,
.info = usb6fire_control_output_vol_info,
.get = usb6fire_control_output_vol_get,
.put = usb6fire_control_output_vol_put,
.tlv = { .p = tlv_output }
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Analog Playback Volume",
.index = 1,
.private_value = 2,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ,
.info = usb6fire_control_output_vol_info,
.get = usb6fire_control_output_vol_get,
.put = usb6fire_control_output_vol_put,
.tlv = { .p = tlv_output }
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Analog Playback Volume",
.index = 2,
.private_value = 4,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ,
.info = usb6fire_control_output_vol_info,
.get = usb6fire_control_output_vol_get,
.put = usb6fire_control_output_vol_put,
.tlv = { .p = tlv_output }
},
{}
};
static struct snd_kcontrol_new mute_elements[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Analog Playback Switch",
.index = 0,
.private_value = 0,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.info = snd_ctl_boolean_stereo_info,
.get = usb6fire_control_output_mute_get,
.put = usb6fire_control_output_mute_put,
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Analog Playback Switch",
.index = 1,
.private_value = 2,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.info = snd_ctl_boolean_stereo_info,
.get = usb6fire_control_output_mute_get,
.put = usb6fire_control_output_mute_put,
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Analog Playback Switch",
.index = 2,
.private_value = 4,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.info = snd_ctl_boolean_stereo_info,
.get = usb6fire_control_output_mute_get,
.put = usb6fire_control_output_mute_put,
},
{}
};
static struct snd_kcontrol_new elements[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Line/Phono Capture Route",
.index = 0,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.info = usb6fire_control_line_phono_info,
.get = usb6fire_control_line_phono_get,
.put = usb6fire_control_line_phono_put
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Opt/Coax Capture Route",
.index = 0,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.info = usb6fire_control_opt_coax_info,
.get = usb6fire_control_opt_coax_get,
.put = usb6fire_control_opt_coax_put
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Digital Thru Playback Route",
.index = 0,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.info = snd_ctl_boolean_mono_info,
.get = usb6fire_control_digital_thru_get,
.put = usb6fire_control_digital_thru_put
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Analog Capture Volume",
.index = 0,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ,
.info = usb6fire_control_input_vol_info,
.get = usb6fire_control_input_vol_get,
.put = usb6fire_control_input_vol_put,
.tlv = { .p = tlv_input }
},
{}
};
static int usb6fire_control_add_virtual(
struct control_runtime *rt,
struct snd_card *card,
char *name,
struct snd_kcontrol_new *elems)
{
int ret;
int i;
struct snd_kcontrol *vmaster =
snd_ctl_make_virtual_master(name, tlv_output);
struct snd_kcontrol *control;
if (!vmaster)
return -ENOMEM;
ret = snd_ctl_add(card, vmaster);
if (ret < 0)
return ret;
i = 0;
while (elems[i].name) {
control = snd_ctl_new1(&elems[i], rt);
if (!control)
return -ENOMEM;
ret = snd_ctl_add(card, control);
if (ret < 0)
return ret;
ret = snd_ctl_add_slave(vmaster, control);
if (ret < 0)
return ret;
i++;
}
return 0;
}
int usb6fire_control_init(struct sfire_chip *chip)
{
int i;
int ret;
struct control_runtime *rt = kzalloc(sizeof(struct control_runtime),
GFP_KERNEL);
struct comm_runtime *comm_rt = chip->comm;
if (!rt)
return -ENOMEM;
rt->chip = chip;
rt->update_streaming = usb6fire_control_streaming_update;
rt->set_rate = usb6fire_control_set_rate;
rt->set_channels = usb6fire_control_set_channels;
i = 0;
while (init_data[i].type) {
comm_rt->write8(comm_rt, init_data[i].type, init_data[i].reg,
init_data[i].value);
i++;
}
usb6fire_control_opt_coax_update(rt);
usb6fire_control_line_phono_update(rt);
usb6fire_control_output_vol_update(rt);
usb6fire_control_output_mute_update(rt);
usb6fire_control_input_vol_update(rt);
usb6fire_control_streaming_update(rt);
ret = usb6fire_control_add_virtual(rt, chip->card,
"Master Playback Volume", vol_elements);
if (ret) {
snd_printk(KERN_ERR PREFIX "cannot add control.\n");
kfree(rt);
return ret;
}
ret = usb6fire_control_add_virtual(rt, chip->card,
"Master Playback Switch", mute_elements);
if (ret) {
snd_printk(KERN_ERR PREFIX "cannot add control.\n");
kfree(rt);
return ret;
}
i = 0;
while (elements[i].name) {
ret = snd_ctl_add(chip->card, snd_ctl_new1(&elements[i], rt));
if (ret < 0) {
kfree(rt);
snd_printk(KERN_ERR PREFIX "cannot add control.\n");
return ret;
}
i++;
}
chip->control = rt;
return 0;
}
void usb6fire_control_abort(struct sfire_chip *chip)
{}
void usb6fire_control_destroy(struct sfire_chip *chip)
{
kfree(chip->control);
chip->control = NULL;
}
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