320 lines
7.3 KiB
C
320 lines
7.3 KiB
C
/*
|
|
* oxfw-spkr.c - a part of driver for OXFW970/971 based devices
|
|
*
|
|
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
|
|
* Licensed under the terms of the GNU General Public License, version 2.
|
|
*/
|
|
|
|
#include "oxfw.h"
|
|
|
|
struct fw_spkr {
|
|
bool mute;
|
|
s16 volume[6];
|
|
s16 volume_min;
|
|
s16 volume_max;
|
|
|
|
unsigned int mixer_channels;
|
|
u8 mute_fb_id;
|
|
u8 volume_fb_id;
|
|
};
|
|
|
|
enum control_action { CTL_READ, CTL_WRITE };
|
|
enum control_attribute {
|
|
CTL_MIN = 0x02,
|
|
CTL_MAX = 0x03,
|
|
CTL_CURRENT = 0x10,
|
|
};
|
|
|
|
static int avc_audio_feature_mute(struct fw_unit *unit, u8 fb_id, bool *value,
|
|
enum control_action action)
|
|
{
|
|
u8 *buf;
|
|
u8 response_ok;
|
|
int err;
|
|
|
|
buf = kmalloc(11, GFP_KERNEL);
|
|
if (!buf)
|
|
return -ENOMEM;
|
|
|
|
if (action == CTL_READ) {
|
|
buf[0] = 0x01; /* AV/C, STATUS */
|
|
response_ok = 0x0c; /* STABLE */
|
|
} else {
|
|
buf[0] = 0x00; /* AV/C, CONTROL */
|
|
response_ok = 0x09; /* ACCEPTED */
|
|
}
|
|
buf[1] = 0x08; /* audio unit 0 */
|
|
buf[2] = 0xb8; /* FUNCTION BLOCK */
|
|
buf[3] = 0x81; /* function block type: feature */
|
|
buf[4] = fb_id; /* function block ID */
|
|
buf[5] = 0x10; /* control attribute: current */
|
|
buf[6] = 0x02; /* selector length */
|
|
buf[7] = 0x00; /* audio channel number */
|
|
buf[8] = 0x01; /* control selector: mute */
|
|
buf[9] = 0x01; /* control data length */
|
|
if (action == CTL_READ)
|
|
buf[10] = 0xff;
|
|
else
|
|
buf[10] = *value ? 0x70 : 0x60;
|
|
|
|
err = fcp_avc_transaction(unit, buf, 11, buf, 11, 0x3fe);
|
|
if (err < 0)
|
|
goto error;
|
|
if (err < 11) {
|
|
dev_err(&unit->device, "short FCP response\n");
|
|
err = -EIO;
|
|
goto error;
|
|
}
|
|
if (buf[0] != response_ok) {
|
|
dev_err(&unit->device, "mute command failed\n");
|
|
err = -EIO;
|
|
goto error;
|
|
}
|
|
if (action == CTL_READ)
|
|
*value = buf[10] == 0x70;
|
|
|
|
err = 0;
|
|
|
|
error:
|
|
kfree(buf);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int avc_audio_feature_volume(struct fw_unit *unit, u8 fb_id, s16 *value,
|
|
unsigned int channel,
|
|
enum control_attribute attribute,
|
|
enum control_action action)
|
|
{
|
|
u8 *buf;
|
|
u8 response_ok;
|
|
int err;
|
|
|
|
buf = kmalloc(12, GFP_KERNEL);
|
|
if (!buf)
|
|
return -ENOMEM;
|
|
|
|
if (action == CTL_READ) {
|
|
buf[0] = 0x01; /* AV/C, STATUS */
|
|
response_ok = 0x0c; /* STABLE */
|
|
} else {
|
|
buf[0] = 0x00; /* AV/C, CONTROL */
|
|
response_ok = 0x09; /* ACCEPTED */
|
|
}
|
|
buf[1] = 0x08; /* audio unit 0 */
|
|
buf[2] = 0xb8; /* FUNCTION BLOCK */
|
|
buf[3] = 0x81; /* function block type: feature */
|
|
buf[4] = fb_id; /* function block ID */
|
|
buf[5] = attribute; /* control attribute */
|
|
buf[6] = 0x02; /* selector length */
|
|
buf[7] = channel; /* audio channel number */
|
|
buf[8] = 0x02; /* control selector: volume */
|
|
buf[9] = 0x02; /* control data length */
|
|
if (action == CTL_READ) {
|
|
buf[10] = 0xff;
|
|
buf[11] = 0xff;
|
|
} else {
|
|
buf[10] = *value >> 8;
|
|
buf[11] = *value;
|
|
}
|
|
|
|
err = fcp_avc_transaction(unit, buf, 12, buf, 12, 0x3fe);
|
|
if (err < 0)
|
|
goto error;
|
|
if (err < 12) {
|
|
dev_err(&unit->device, "short FCP response\n");
|
|
err = -EIO;
|
|
goto error;
|
|
}
|
|
if (buf[0] != response_ok) {
|
|
dev_err(&unit->device, "volume command failed\n");
|
|
err = -EIO;
|
|
goto error;
|
|
}
|
|
if (action == CTL_READ)
|
|
*value = (buf[10] << 8) | buf[11];
|
|
|
|
err = 0;
|
|
|
|
error:
|
|
kfree(buf);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int spkr_mute_get(struct snd_kcontrol *control,
|
|
struct snd_ctl_elem_value *value)
|
|
{
|
|
struct snd_oxfw *oxfw = control->private_data;
|
|
struct fw_spkr *spkr = oxfw->spec;
|
|
|
|
value->value.integer.value[0] = !spkr->mute;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int spkr_mute_put(struct snd_kcontrol *control,
|
|
struct snd_ctl_elem_value *value)
|
|
{
|
|
struct snd_oxfw *oxfw = control->private_data;
|
|
struct fw_spkr *spkr = oxfw->spec;
|
|
bool mute;
|
|
int err;
|
|
|
|
mute = !value->value.integer.value[0];
|
|
|
|
if (mute == spkr->mute)
|
|
return 0;
|
|
|
|
err = avc_audio_feature_mute(oxfw->unit, spkr->mute_fb_id, &mute,
|
|
CTL_WRITE);
|
|
if (err < 0)
|
|
return err;
|
|
spkr->mute = mute;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int spkr_volume_info(struct snd_kcontrol *control,
|
|
struct snd_ctl_elem_info *info)
|
|
{
|
|
struct snd_oxfw *oxfw = control->private_data;
|
|
struct fw_spkr *spkr = oxfw->spec;
|
|
|
|
info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
|
|
info->count = spkr->mixer_channels;
|
|
info->value.integer.min = spkr->volume_min;
|
|
info->value.integer.max = spkr->volume_max;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const u8 channel_map[6] = { 0, 1, 4, 5, 2, 3 };
|
|
|
|
static int spkr_volume_get(struct snd_kcontrol *control,
|
|
struct snd_ctl_elem_value *value)
|
|
{
|
|
struct snd_oxfw *oxfw = control->private_data;
|
|
struct fw_spkr *spkr = oxfw->spec;
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < spkr->mixer_channels; ++i)
|
|
value->value.integer.value[channel_map[i]] = spkr->volume[i];
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int spkr_volume_put(struct snd_kcontrol *control,
|
|
struct snd_ctl_elem_value *value)
|
|
{
|
|
struct snd_oxfw *oxfw = control->private_data;
|
|
struct fw_spkr *spkr = oxfw->spec;
|
|
unsigned int i, changed_channels;
|
|
bool equal_values = true;
|
|
s16 volume;
|
|
int err;
|
|
|
|
for (i = 0; i < spkr->mixer_channels; ++i) {
|
|
if (value->value.integer.value[i] < spkr->volume_min ||
|
|
value->value.integer.value[i] > spkr->volume_max)
|
|
return -EINVAL;
|
|
if (value->value.integer.value[i] !=
|
|
value->value.integer.value[0])
|
|
equal_values = false;
|
|
}
|
|
|
|
changed_channels = 0;
|
|
for (i = 0; i < spkr->mixer_channels; ++i)
|
|
if (value->value.integer.value[channel_map[i]] !=
|
|
spkr->volume[i])
|
|
changed_channels |= 1 << (i + 1);
|
|
|
|
if (equal_values && changed_channels != 0)
|
|
changed_channels = 1 << 0;
|
|
|
|
for (i = 0; i <= spkr->mixer_channels; ++i) {
|
|
volume = value->value.integer.value[channel_map[i ? i - 1 : 0]];
|
|
if (changed_channels & (1 << i)) {
|
|
err = avc_audio_feature_volume(oxfw->unit,
|
|
spkr->volume_fb_id, &volume,
|
|
i, CTL_CURRENT, CTL_WRITE);
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
if (i > 0)
|
|
spkr->volume[i - 1] = volume;
|
|
}
|
|
|
|
return changed_channels != 0;
|
|
}
|
|
|
|
int snd_oxfw_add_spkr(struct snd_oxfw *oxfw, bool is_lacie)
|
|
{
|
|
static const struct snd_kcontrol_new controls[] = {
|
|
{
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "PCM Playback Switch",
|
|
.info = snd_ctl_boolean_mono_info,
|
|
.get = spkr_mute_get,
|
|
.put = spkr_mute_put,
|
|
},
|
|
{
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "PCM Playback Volume",
|
|
.info = spkr_volume_info,
|
|
.get = spkr_volume_get,
|
|
.put = spkr_volume_put,
|
|
},
|
|
};
|
|
struct fw_spkr *spkr;
|
|
unsigned int i, first_ch;
|
|
int err;
|
|
|
|
spkr = kzalloc(sizeof(struct fw_spkr), GFP_KERNEL);
|
|
if (spkr == NULL)
|
|
return -ENOMEM;
|
|
oxfw->spec = spkr;
|
|
|
|
if (is_lacie) {
|
|
spkr->mixer_channels = 1;
|
|
spkr->mute_fb_id = 0x01;
|
|
spkr->volume_fb_id = 0x01;
|
|
} else {
|
|
spkr->mixer_channels = 6;
|
|
spkr->mute_fb_id = 0x01;
|
|
spkr->volume_fb_id = 0x02;
|
|
}
|
|
|
|
err = avc_audio_feature_volume(oxfw->unit, spkr->volume_fb_id,
|
|
&spkr->volume_min, 0, CTL_MIN, CTL_READ);
|
|
if (err < 0)
|
|
return err;
|
|
err = avc_audio_feature_volume(oxfw->unit, spkr->volume_fb_id,
|
|
&spkr->volume_max, 0, CTL_MAX, CTL_READ);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
err = avc_audio_feature_mute(oxfw->unit, spkr->mute_fb_id, &spkr->mute,
|
|
CTL_READ);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
first_ch = spkr->mixer_channels == 1 ? 0 : 1;
|
|
for (i = 0; i < spkr->mixer_channels; ++i) {
|
|
err = avc_audio_feature_volume(oxfw->unit, spkr->volume_fb_id,
|
|
&spkr->volume[i], first_ch + i,
|
|
CTL_CURRENT, CTL_READ);
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(controls); ++i) {
|
|
err = snd_ctl_add(oxfw->card,
|
|
snd_ctl_new1(&controls[i], oxfw));
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
}
|