leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity
eb67662284
linux/sound/usb/6fire/control.c
Takashi Iwai 9ab0cb309e ALSA: Replace the word "slave" in vmaster API 
Follow the recent inclusive terminology guidelines and replace the
word "slave" in vmaster API.  I chose the word "follower" at this time
since it seems fitting for the purpose.

Note that the word "master" is kept in API, since it refers rather to
audio master volume control.

Also, while we're at it, a typo in comments is corrected, too.

Link: https://lore.kernel.org/r/20200717154517.27599-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-07-20 10:10:47 +02:00

618 lines
16 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 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
*/
#include <linux/interrupt.h>
#include <sound/control.h>
#include <sound/tlv.h>
#include "control.h"
#include "comm.h"
#include "chip.h"
static const char * const opt_coax_texts[2] = { "Optical", "Coax" };
static const char * const 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) {
dev_err(&rt->chip->dev->dev,
"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) {
dev_err(&rt->chip->dev->dev,
"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) {
dev_err(&rt->chip->dev->dev,
"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) {
dev_err(&rt->chip->dev->dev,
"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)
{
return snd_ctl_enum_info(uinfo, 1, 2, line_phono_texts);
}
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)
{
return snd_ctl_enum_info(uinfo, 1, 2, opt_coax_texts);
}
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 const 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 const 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 const 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,
const 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_follower(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) {
dev_err(&chip->dev->dev, "cannot add control.\n");
kfree(rt);
return ret;
}
ret = usb6fire_control_add_virtual(rt, chip->card,
"Master Playback Switch", mute_elements);
if (ret) {
dev_err(&chip->dev->dev, "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);
dev_err(&chip->dev->dev, "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;
}
Reference in New Issue View Git Blame Copy Permalink