aboutsummaryrefslogtreecommitdiff
path: root/sound/usb/mixer.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/usb/mixer.c')
-rw-r--r--sound/usb/mixer.c215
1 files changed, 117 insertions, 98 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 97dd1765510..a060d005e20 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -78,39 +78,6 @@ enum {
USB_MIXER_U16,
};
-enum {
- USB_PROC_UPDOWN = 1,
- USB_PROC_UPDOWN_SWITCH = 1,
- USB_PROC_UPDOWN_MODE_SEL = 2,
-
- USB_PROC_PROLOGIC = 2,
- USB_PROC_PROLOGIC_SWITCH = 1,
- USB_PROC_PROLOGIC_MODE_SEL = 2,
-
- USB_PROC_3DENH = 3,
- USB_PROC_3DENH_SWITCH = 1,
- USB_PROC_3DENH_SPACE = 2,
-
- USB_PROC_REVERB = 4,
- USB_PROC_REVERB_SWITCH = 1,
- USB_PROC_REVERB_LEVEL = 2,
- USB_PROC_REVERB_TIME = 3,
- USB_PROC_REVERB_DELAY = 4,
-
- USB_PROC_CHORUS = 5,
- USB_PROC_CHORUS_SWITCH = 1,
- USB_PROC_CHORUS_LEVEL = 2,
- USB_PROC_CHORUS_RATE = 3,
- USB_PROC_CHORUS_DEPTH = 4,
-
- USB_PROC_DCR = 6,
- USB_PROC_DCR_SWITCH = 1,
- USB_PROC_DCR_RATIO = 2,
- USB_PROC_DCR_MAX_AMP = 3,
- USB_PROC_DCR_THRESHOLD = 4,
- USB_PROC_DCR_ATTACK = 5,
- USB_PROC_DCR_RELEASE = 6,
-};
/*E-mu 0202(0404) eXtension Unit(XU) control*/
enum {
@@ -198,22 +165,24 @@ static int check_mapped_selector_name(struct mixer_build *state, int unitid,
/*
* find an audio control unit with the given unit id
- * this doesn't return any clock related units, so they need to be handled elsewhere
*/
static void *find_audio_control_unit(struct mixer_build *state, unsigned char unit)
{
- unsigned char *p;
+ /* we just parse the header */
+ struct uac_feature_unit_descriptor *hdr = NULL;
- p = NULL;
- while ((p = snd_usb_find_desc(state->buffer, state->buflen, p,
- USB_DT_CS_INTERFACE)) != NULL) {
- if (p[0] >= 4 && p[2] >= UAC_INPUT_TERMINAL && p[2] <= UAC2_EXTENSION_UNIT_V2 && p[3] == unit)
- return p;
+ while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr,
+ USB_DT_CS_INTERFACE)) != NULL) {
+ if (hdr->bLength >= 4 &&
+ hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL &&
+ hdr->bDescriptorSubtype <= UAC2_SAMPLE_RATE_CONVERTER &&
+ hdr->bUnitID == unit)
+ return hdr;
}
+
return NULL;
}
-
/*
* copy a string with the given id
*/
@@ -344,8 +313,8 @@ static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int v
buf, sizeof(buf), 1000);
if (ret < 0) {
- snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n",
- request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type);
+ snd_printk(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n",
+ request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type);
return ret;
}
@@ -462,6 +431,16 @@ static int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel,
int index, int value)
{
int err;
+ unsigned int read_only = (channel == 0) ?
+ cval->master_readonly :
+ cval->ch_readonly & (1 << (channel - 1));
+
+ if (read_only) {
+ snd_printdd(KERN_INFO "%s(): channel %d of control %d is read_only\n",
+ __func__, channel, cval->control);
+ return 0;
+ }
+
err = snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, (cval->control << 8) | channel,
value);
if (err < 0)
@@ -631,6 +610,7 @@ static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm
*/
static int check_input_term(struct mixer_build *state, int id, struct usb_audio_term *term)
{
+ int err;
void *p1;
memset(term, 0, sizeof(*term));
@@ -651,6 +631,11 @@ static int check_input_term(struct mixer_build *state, int id, struct usb_audio_
term->channels = d->bNrChannels;
term->chconfig = le32_to_cpu(d->bmChannelConfig);
term->name = d->iTerminal;
+
+ /* call recursively to get the clock selectors */
+ err = check_input_term(state, d->bCSourceID, term);
+ if (err < 0)
+ return err;
}
return 0;
case UAC_FEATURE_UNIT: {
@@ -667,7 +652,8 @@ static int check_input_term(struct mixer_build *state, int id, struct usb_audio_
term->name = uac_mixer_unit_iMixer(d);
return 0;
}
- case UAC_SELECTOR_UNIT: {
+ case UAC_SELECTOR_UNIT:
+ case UAC2_CLOCK_SELECTOR: {
struct uac_selector_unit_descriptor *d = p1;
/* call recursively to retrieve the channel info */
if (check_input_term(state, d->baSourceID[0], term) < 0)
@@ -690,6 +676,13 @@ static int check_input_term(struct mixer_build *state, int id, struct usb_audio_
term->name = uac_processing_unit_iProcessing(d, state->mixer->protocol);
return 0;
}
+ case UAC2_CLOCK_SOURCE: {
+ struct uac_clock_source_descriptor *d = p1;
+ term->type = d->bDescriptorSubtype << 16; /* virtual type */
+ term->id = id;
+ term->name = d->iClockSource;
+ return 0;
+ }
default:
return -ENODEV;
}
@@ -709,16 +702,20 @@ struct usb_feature_control_info {
};
static struct usb_feature_control_info audio_feature_info[] = {
- { "Mute", USB_MIXER_INV_BOOLEAN },
- { "Volume", USB_MIXER_S16 },
+ { "Mute", USB_MIXER_INV_BOOLEAN },
+ { "Volume", USB_MIXER_S16 },
{ "Tone Control - Bass", USB_MIXER_S8 },
{ "Tone Control - Mid", USB_MIXER_S8 },
{ "Tone Control - Treble", USB_MIXER_S8 },
{ "Graphic Equalizer", USB_MIXER_S8 }, /* FIXME: not implemeted yet */
- { "Auto Gain Control", USB_MIXER_BOOLEAN },
- { "Delay Control", USB_MIXER_U16 },
- { "Bass Boost", USB_MIXER_BOOLEAN },
- { "Loudness", USB_MIXER_BOOLEAN },
+ { "Auto Gain Control", USB_MIXER_BOOLEAN },
+ { "Delay Control", USB_MIXER_U16 },
+ { "Bass Boost", USB_MIXER_BOOLEAN },
+ { "Loudness", USB_MIXER_BOOLEAN },
+ /* UAC2 specific */
+ { "Input Gain Control", USB_MIXER_U16 },
+ { "Input Gain Pad Control", USB_MIXER_BOOLEAN },
+ { "Phase Inverter Control", USB_MIXER_BOOLEAN },
};
@@ -958,7 +955,7 @@ static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str)
static void build_feature_ctl(struct mixer_build *state, void *raw_desc,
unsigned int ctl_mask, int control,
struct usb_audio_term *iterm, int unitid,
- int read_only)
+ int readonly_mask)
{
struct uac_feature_unit_descriptor *desc = raw_desc;
unsigned int len = 0;
@@ -970,7 +967,7 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc,
control++; /* change from zero-based to 1-based value */
- if (control == UAC_GRAPHIC_EQUALIZER_CONTROL) {
+ if (control == UAC_FU_GRAPHIC_EQUALIZER) {
/* FIXME: not supported yet */
return;
}
@@ -989,20 +986,25 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc,
cval->control = control;
cval->cmask = ctl_mask;
cval->val_type = audio_feature_info[control-1].type;
- if (ctl_mask == 0)
+ if (ctl_mask == 0) {
cval->channels = 1; /* master channel */
- else {
+ cval->master_readonly = readonly_mask;
+ } else {
int i, c = 0;
for (i = 0; i < 16; i++)
if (ctl_mask & (1 << i))
c++;
cval->channels = c;
+ cval->ch_readonly = readonly_mask;
}
/* get min/max values */
get_min_max(cval, 0);
- if (read_only)
+ /* if all channels in the mask are marked read-only, make the control
+ * read-only. set_cur_mix_value() will check the mask again and won't
+ * issue write commands to read-only channels. */
+ if (cval->channels == readonly_mask)
kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval);
else
kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval);
@@ -1021,8 +1023,8 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc,
kctl->id.name, sizeof(kctl->id.name));
switch (control) {
- case UAC_MUTE_CONTROL:
- case UAC_VOLUME_CONTROL:
+ case UAC_FU_MUTE:
+ case UAC_FU_VOLUME:
/* determine the control name. the rule is:
* - if a name id is given in descriptor, use it.
* - if the connected input can be determined, then use the name
@@ -1049,9 +1051,9 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc,
len = append_ctl_name(kctl, " Playback");
}
}
- append_ctl_name(kctl, control == UAC_MUTE_CONTROL ?
+ append_ctl_name(kctl, control == UAC_FU_MUTE ?
" Switch" : " Volume");
- if (control == UAC_VOLUME_CONTROL) {
+ if (control == UAC_FU_VOLUME) {
kctl->tlv.c = mixer_vol_tlv;
kctl->vd[0].access |=
SNDRV_CTL_ELEM_ACCESS_TLV_READ |
@@ -1126,7 +1128,7 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void
} else {
struct uac2_feature_unit_descriptor *ftr = _ftr;
csize = 4;
- channels = (hdr->bLength - 6) / 4;
+ channels = (hdr->bLength - 6) / 4 - 1;
bmaControls = ftr->bmaControls;
}
@@ -1150,7 +1152,7 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void
snd_printk(KERN_INFO
"usbmixer: master volume quirk for PCM2702 chip\n");
/* disable non-functional volume control */
- master_bits &= ~UAC_FU_VOLUME;
+ master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME);
break;
}
if (channels > 0)
@@ -1188,19 +1190,22 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void
for (j = 0; j < channels; j++) {
unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize);
- if (mask & (1 << (i * 2))) {
+ if (uac2_control_is_readable(mask, i)) {
ch_bits |= (1 << j);
- if (~mask & (1 << ((i * 2) + 1)))
+ if (!uac2_control_is_writeable(mask, i))
ch_read_only |= (1 << j);
}
}
- /* FIXME: the whole unit is read-only if any of the channels is marked read-only */
+ /* NOTE: build_feature_ctl() will mark the control read-only if all channels
+ * are marked read-only in the descriptors. Otherwise, the control will be
+ * reported as writeable, but the driver will not actually issue a write
+ * command for read-only channels */
if (ch_bits & 1) /* the first channel must be set (for ease of programming) */
- build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, !!ch_read_only);
- if (master_bits & (1 << i * 2))
+ build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, ch_read_only);
+ if (uac2_control_is_readable(master_bits, i))
build_feature_ctl(state, _ftr, 0, i, &iterm, unitid,
- ~master_bits & (1 << ((i * 2) + 1)));
+ !uac2_control_is_writeable(master_bits, i));
}
}
@@ -1392,51 +1397,51 @@ struct procunit_info {
};
static struct procunit_value_info updown_proc_info[] = {
- { USB_PROC_UPDOWN_SWITCH, "Switch", USB_MIXER_BOOLEAN },
- { USB_PROC_UPDOWN_MODE_SEL, "Mode Select", USB_MIXER_U8, 1 },
+ { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN },
+ { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 },
{ 0 }
};
static struct procunit_value_info prologic_proc_info[] = {
- { USB_PROC_PROLOGIC_SWITCH, "Switch", USB_MIXER_BOOLEAN },
- { USB_PROC_PROLOGIC_MODE_SEL, "Mode Select", USB_MIXER_U8, 1 },
+ { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN },
+ { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 },
{ 0 }
};
static struct procunit_value_info threed_enh_proc_info[] = {
- { USB_PROC_3DENH_SWITCH, "Switch", USB_MIXER_BOOLEAN },
- { USB_PROC_3DENH_SPACE, "Spaciousness", USB_MIXER_U8 },
+ { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN },
+ { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 },
{ 0 }
};
static struct procunit_value_info reverb_proc_info[] = {
- { USB_PROC_REVERB_SWITCH, "Switch", USB_MIXER_BOOLEAN },
- { USB_PROC_REVERB_LEVEL, "Level", USB_MIXER_U8 },
- { USB_PROC_REVERB_TIME, "Time", USB_MIXER_U16 },
- { USB_PROC_REVERB_DELAY, "Delay", USB_MIXER_U8 },
+ { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN },
+ { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 },
+ { UAC_REVERB_TIME, "Time", USB_MIXER_U16 },
+ { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 },
{ 0 }
};
static struct procunit_value_info chorus_proc_info[] = {
- { USB_PROC_CHORUS_SWITCH, "Switch", USB_MIXER_BOOLEAN },
- { USB_PROC_CHORUS_LEVEL, "Level", USB_MIXER_U8 },
- { USB_PROC_CHORUS_RATE, "Rate", USB_MIXER_U16 },
- { USB_PROC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 },
+ { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN },
+ { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 },
+ { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 },
+ { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 },
{ 0 }
};
static struct procunit_value_info dcr_proc_info[] = {
- { USB_PROC_DCR_SWITCH, "Switch", USB_MIXER_BOOLEAN },
- { USB_PROC_DCR_RATIO, "Ratio", USB_MIXER_U16 },
- { USB_PROC_DCR_MAX_AMP, "Max Amp", USB_MIXER_S16 },
- { USB_PROC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 },
- { USB_PROC_DCR_ATTACK, "Attack Time", USB_MIXER_U16 },
- { USB_PROC_DCR_RELEASE, "Release Time", USB_MIXER_U16 },
+ { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN },
+ { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 },
+ { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 },
+ { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 },
+ { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 },
+ { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 },
{ 0 }
};
static struct procunit_info procunits[] = {
- { USB_PROC_UPDOWN, "Up Down", updown_proc_info },
- { USB_PROC_PROLOGIC, "Dolby Prologic", prologic_proc_info },
- { USB_PROC_3DENH, "3D Stereo Extender", threed_enh_proc_info },
- { USB_PROC_REVERB, "Reverb", reverb_proc_info },
- { USB_PROC_CHORUS, "Chorus", chorus_proc_info },
- { USB_PROC_DCR, "DCR", dcr_proc_info },
+ { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info },
+ { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info },
+ { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info },
+ { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info },
+ { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info },
+ { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info },
{ 0 },
};
/*
@@ -1524,7 +1529,7 @@ static int build_audio_procunit(struct mixer_build *state, int unitid, void *raw
cval->channels = 1;
/* get min/max values */
- if (type == USB_PROC_UPDOWN && cval->control == USB_PROC_UPDOWN_MODE_SEL) {
+ if (type == UAC_PROCESS_UP_DOWNMIX && cval->control == UAC_UD_MODE_SELECT) {
__u8 *control_spec = uac_processing_unit_specific(desc, state->mixer->protocol);
/* FIXME: hard-coded */
cval->min = 1;
@@ -1619,7 +1624,7 @@ static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, struct snd_ctl_
struct usb_mixer_elem_info *cval = kcontrol->private_data;
int val, err;
- err = get_cur_ctl_value(cval, 0, &val);
+ err = get_cur_ctl_value(cval, cval->control << 8, &val);
if (err < 0) {
if (cval->mixer->ignore_ctl_error) {
ucontrol->value.enumerated.item[0] = 0;
@@ -1638,7 +1643,7 @@ static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_
struct usb_mixer_elem_info *cval = kcontrol->private_data;
int val, oval, err;
- err = get_cur_ctl_value(cval, 0, &oval);
+ err = get_cur_ctl_value(cval, cval->control << 8, &oval);
if (err < 0) {
if (cval->mixer->ignore_ctl_error)
return 0;
@@ -1647,7 +1652,7 @@ static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_
val = ucontrol->value.enumerated.item[0];
val = get_abs_value(cval, val);
if (val != oval) {
- set_cur_ctl_value(cval, 0, val);
+ set_cur_ctl_value(cval, cval->control << 8, val);
return 1;
}
return 0;
@@ -1729,6 +1734,11 @@ static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void
cval->res = 1;
cval->initialized = 1;
+ if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR)
+ cval->control = UAC2_CX_CLOCK_SELECTOR;
+ else
+ cval->control = 0;
+
namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL);
if (! namelist) {
snd_printk(KERN_ERR "cannot malloc\n");
@@ -1778,7 +1788,9 @@ static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void
if (! len)
strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name));
- if ((state->oterm.type & 0xff00) == 0x0100)
+ if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR)
+ append_ctl_name(kctl, " Clock Source");
+ else if ((state->oterm.type & 0xff00) == 0x0100)
append_ctl_name(kctl, " Capture Source");
else
append_ctl_name(kctl, " Playback Source");
@@ -1812,10 +1824,12 @@ static int parse_audio_unit(struct mixer_build *state, int unitid)
switch (p1[2]) {
case UAC_INPUT_TERMINAL:
+ case UAC2_CLOCK_SOURCE:
return 0; /* NOP */
case UAC_MIXER_UNIT:
return parse_audio_mixer_unit(state, unitid, p1);
case UAC_SELECTOR_UNIT:
+ case UAC2_CLOCK_SELECTOR:
return parse_audio_selector_unit(state, unitid, p1);
case UAC_FEATURE_UNIT:
return parse_audio_feature_unit(state, unitid, p1);
@@ -1912,6 +1926,11 @@ static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer)
err = parse_audio_unit(&state, desc->bSourceID);
if (err < 0)
return err;
+
+ /* for UAC2, use the same approach to also add the clock selectors */
+ err = parse_audio_unit(&state, desc->bCSourceID);
+ if (err < 0)
+ return err;
}
}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-02 13:22:58 +0000