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Diffstat (limited to 'sound/usb/usbmixer.c')
-rw-r--r--sound/usb/usbmixer.c112
1 files changed, 63 insertions, 49 deletions
diff --git a/sound/usb/usbmixer.c b/sound/usb/usbmixer.c
index 35b4830fb0c4..8e8f871b74ca 100644
--- a/sound/usb/usbmixer.c
+++ b/sound/usb/usbmixer.c
@@ -32,6 +32,8 @@
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/usb.h>
+#include <linux/usb/audio.h>
+
#include <sound/core.h>
#include <sound/control.h>
#include <sound/hwdep.h>
@@ -284,7 +286,7 @@ static void *find_audio_control_unit(struct mixer_build *state, unsigned char un
p = NULL;
while ((p = snd_usb_find_desc(state->buffer, state->buflen, p,
USB_DT_CS_INTERFACE)) != NULL) {
- if (p[0] >= 4 && p[2] >= INPUT_TERMINAL && p[2] <= EXTENSION_UNIT && p[3] == unit)
+ if (p[0] >= 4 && p[2] >= UAC_INPUT_TERMINAL && p[2] <= UAC_EXTENSION_UNIT_V1 && p[3] == unit)
return p;
}
return NULL;
@@ -405,14 +407,14 @@ static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int vali
static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int *value)
{
- return get_ctl_value(cval, GET_CUR, validx, value);
+ return get_ctl_value(cval, UAC_GET_CUR, validx, value);
}
/* channel = 0: master, 1 = first channel */
static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval,
int channel, int *value)
{
- return get_ctl_value(cval, GET_CUR, (cval->control << 8) | channel, value);
+ return get_ctl_value(cval, UAC_GET_CUR, (cval->control << 8) | channel, value);
}
static int get_cur_mix_value(struct usb_mixer_elem_info *cval,
@@ -466,14 +468,14 @@ static int set_ctl_value(struct usb_mixer_elem_info *cval, int request, int vali
static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int value)
{
- return set_ctl_value(cval, SET_CUR, validx, value);
+ return set_ctl_value(cval, UAC_SET_CUR, validx, value);
}
static int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel,
int index, int value)
{
int err;
- err = set_ctl_value(cval, SET_CUR, (cval->control << 8) | channel,
+ err = set_ctl_value(cval, UAC_SET_CUR, (cval->control << 8) | channel,
value);
if (err < 0)
return err;
@@ -603,13 +605,13 @@ static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm
if (term_only)
return 0;
switch (iterm->type >> 16) {
- case SELECTOR_UNIT:
+ case UAC_SELECTOR_UNIT:
strcpy(name, "Selector"); return 8;
- case PROCESSING_UNIT:
+ case UAC_PROCESSING_UNIT_V1:
strcpy(name, "Process Unit"); return 12;
- case EXTENSION_UNIT:
+ case UAC_EXTENSION_UNIT_V1:
strcpy(name, "Ext Unit"); return 8;
- case MIXER_UNIT:
+ case UAC_MIXER_UNIT:
strcpy(name, "Mixer"); return 5;
default:
return sprintf(name, "Unit %d", iterm->id);
@@ -648,22 +650,22 @@ static int check_input_term(struct mixer_build *state, int id, struct usb_audio_
while ((p1 = find_audio_control_unit(state, id)) != NULL) {
term->id = id;
switch (p1[2]) {
- case INPUT_TERMINAL:
+ case UAC_INPUT_TERMINAL:
term->type = combine_word(p1 + 4);
term->channels = p1[7];
term->chconfig = combine_word(p1 + 8);
term->name = p1[11];
return 0;
- case FEATURE_UNIT:
+ case UAC_FEATURE_UNIT:
id = p1[4];
break; /* continue to parse */
- case MIXER_UNIT:
+ case UAC_MIXER_UNIT:
term->type = p1[2] << 16; /* virtual type */
term->channels = p1[5 + p1[4]];
term->chconfig = combine_word(p1 + 6 + p1[4]);
term->name = p1[p1[0] - 1];
return 0;
- case SELECTOR_UNIT:
+ case UAC_SELECTOR_UNIT:
/* call recursively to retrieve the channel info */
if (check_input_term(state, p1[5], term) < 0)
return -ENODEV;
@@ -671,8 +673,8 @@ static int check_input_term(struct mixer_build *state, int id, struct usb_audio_
term->id = id;
term->name = p1[9 + p1[0] - 1];
return 0;
- case PROCESSING_UNIT:
- case EXTENSION_UNIT:
+ case UAC_PROCESSING_UNIT_V1:
+ case UAC_EXTENSION_UNIT_V1:
if (p1[6] == 1) {
id = p1[7];
break; /* continue to parse */
@@ -750,23 +752,23 @@ static int get_min_max(struct usb_mixer_elem_info *cval, int default_min)
break;
}
}
- if (get_ctl_value(cval, GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 ||
- get_ctl_value(cval, GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) {
+ if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 ||
+ get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) {
snd_printd(KERN_ERR "%d:%d: cannot get min/max values for control %d (id %d)\n",
cval->id, cval->mixer->ctrlif, cval->control, cval->id);
return -EINVAL;
}
- if (get_ctl_value(cval, GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) {
+ if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) {
cval->res = 1;
} else {
int last_valid_res = cval->res;
while (cval->res > 1) {
- if (set_ctl_value(cval, SET_RES, (cval->control << 8) | minchn, cval->res / 2) < 0)
+ if (set_ctl_value(cval, UAC_SET_RES, (cval->control << 8) | minchn, cval->res / 2) < 0)
break;
cval->res /= 2;
}
- if (get_ctl_value(cval, GET_RES, (cval->control << 8) | minchn, &cval->res) < 0)
+ if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0)
cval->res = last_valid_res;
}
if (cval->res == 0)
@@ -1086,29 +1088,30 @@ static void build_feature_ctl(struct mixer_build *state, unsigned char *desc,
*
* most of controlls are defined here.
*/
-static int parse_audio_feature_unit(struct mixer_build *state, int unitid, unsigned char *ftr)
+static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void *_ftr)
{
int channels, i, j;
struct usb_audio_term iterm;
unsigned int master_bits, first_ch_bits;
int err, csize;
+ struct uac_feature_unit_descriptor *ftr = _ftr;
- if (ftr[0] < 7 || ! (csize = ftr[5]) || ftr[0] < 7 + csize) {
- snd_printk(KERN_ERR "usbaudio: unit %u: invalid FEATURE_UNIT descriptor\n", unitid);
+ if (ftr->bLength < 7 || ! (csize = ftr->bControlSize) || ftr->bLength < 7 + csize) {
+ snd_printk(KERN_ERR "usbaudio: unit %u: invalid UAC_FEATURE_UNIT descriptor\n", unitid);
return -EINVAL;
}
/* parse the source unit */
- if ((err = parse_audio_unit(state, ftr[4])) < 0)
+ if ((err = parse_audio_unit(state, ftr->bSourceID)) < 0)
return err;
/* determine the input source type and name */
- if (check_input_term(state, ftr[4], &iterm) < 0)
+ if (check_input_term(state, ftr->bSourceID, &iterm) < 0)
return -EINVAL;
- channels = (ftr[0] - 7) / csize - 1;
+ channels = (ftr->bLength - 7) / csize - 1;
- master_bits = snd_usb_combine_bytes(ftr + 6, csize);
+ master_bits = snd_usb_combine_bytes(ftr->controls, csize);
/* master configuration quirks */
switch (state->chip->usb_id) {
case USB_ID(0x08bb, 0x2702):
@@ -1119,21 +1122,21 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, unsig
break;
}
if (channels > 0)
- first_ch_bits = snd_usb_combine_bytes(ftr + 6 + csize, csize);
+ first_ch_bits = snd_usb_combine_bytes(ftr->controls + csize, csize);
else
first_ch_bits = 0;
/* check all control types */
for (i = 0; i < 10; i++) {
unsigned int ch_bits = 0;
for (j = 0; j < channels; j++) {
- unsigned int mask = snd_usb_combine_bytes(ftr + 6 + csize * (j+1), csize);
+ unsigned int mask = snd_usb_combine_bytes(ftr->controls + csize * (j+1), csize);
if (mask & (1 << i))
ch_bits |= (1 << j);
}
if (ch_bits & 1) /* the first channel must be set (for ease of programming) */
- build_feature_ctl(state, ftr, ch_bits, i, &iterm, unitid);
+ build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid);
if (master_bits & (1 << i))
- build_feature_ctl(state, ftr, 0, i, &iterm, unitid);
+ build_feature_ctl(state, _ftr, 0, i, &iterm, unitid);
}
return 0;
@@ -1736,17 +1739,17 @@ static int parse_audio_unit(struct mixer_build *state, int unitid)
}
switch (p1[2]) {
- case INPUT_TERMINAL:
+ case UAC_INPUT_TERMINAL:
return 0; /* NOP */
- case MIXER_UNIT:
+ case UAC_MIXER_UNIT:
return parse_audio_mixer_unit(state, unitid, p1);
- case SELECTOR_UNIT:
+ case UAC_SELECTOR_UNIT:
return parse_audio_selector_unit(state, unitid, p1);
- case FEATURE_UNIT:
+ case UAC_FEATURE_UNIT:
return parse_audio_feature_unit(state, unitid, p1);
- case PROCESSING_UNIT:
+ case UAC_PROCESSING_UNIT_V1:
return parse_audio_processing_unit(state, unitid, p1);
- case EXTENSION_UNIT:
+ case UAC_EXTENSION_UNIT_V1:
return parse_audio_extension_unit(state, unitid, p1);
default:
snd_printk(KERN_ERR "usbaudio: unit %u: unexpected type 0x%02x\n", unitid, p1[2]);
@@ -1776,11 +1779,11 @@ static int snd_usb_mixer_dev_free(struct snd_device *device)
/*
* create mixer controls
*
- * walk through all OUTPUT_TERMINAL descriptors to search for mixers
+ * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers
*/
static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer)
{
- unsigned char *desc;
+ struct uac_output_terminal_descriptor_v1 *desc;
struct mixer_build state;
int err;
const struct usbmix_ctl_map *map;
@@ -1804,14 +1807,14 @@ static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer)
}
desc = NULL;
- while ((desc = snd_usb_find_csint_desc(hostif->extra, hostif->extralen, desc, OUTPUT_TERMINAL)) != NULL) {
- if (desc[0] < 9)
+ while ((desc = snd_usb_find_csint_desc(hostif->extra, hostif->extralen, desc, UAC_OUTPUT_TERMINAL)) != NULL) {
+ if (desc->bLength < 9)
continue; /* invalid descriptor? */
- set_bit(desc[3], state.unitbitmap); /* mark terminal ID as visited */
- state.oterm.id = desc[3];
- state.oterm.type = combine_word(&desc[4]);
- state.oterm.name = desc[8];
- err = parse_audio_unit(&state, desc[7]);
+ set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */
+ state.oterm.id = desc->bTerminalID;
+ state.oterm.type = le16_to_cpu(desc->wTerminalType);
+ state.oterm.name = desc->iTerminal;
+ err = parse_audio_unit(&state, desc->bSourceID);
if (err < 0)
return err;
}
@@ -2044,7 +2047,7 @@ static int snd_usb_soundblaster_remote_init(struct usb_mixer_interface *mixer)
}
mixer->rc_setup_packet->bRequestType =
USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
- mixer->rc_setup_packet->bRequest = GET_MEM;
+ mixer->rc_setup_packet->bRequest = UAC_GET_MEM;
mixer->rc_setup_packet->wValue = cpu_to_le16(0);
mixer->rc_setup_packet->wIndex = cpu_to_le16(0);
mixer->rc_setup_packet->wLength = cpu_to_le16(len);
@@ -2167,7 +2170,7 @@ static void snd_audigy2nx_proc_read(struct snd_info_entry *entry,
snd_iprintf(buffer, "%s: ", jacks[i].name);
err = snd_usb_ctl_msg(mixer->chip->dev,
usb_rcvctrlpipe(mixer->chip->dev, 0),
- GET_MEM, USB_DIR_IN | USB_TYPE_CLASS |
+ UAC_GET_MEM, USB_DIR_IN | USB_TYPE_CLASS |
USB_RECIP_INTERFACE, 0,
jacks[i].unitid << 8, buf, 3, 100);
if (err == 3 && (buf[0] == 3 || buf[0] == 6))
@@ -2255,7 +2258,8 @@ int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
};
struct usb_mixer_interface *mixer;
struct snd_info_entry *entry;
- int err;
+ struct usb_host_interface *host_iface;
+ int err, protocol;
strcpy(chip->card->mixername, "USB Mixer");
@@ -2272,6 +2276,16 @@ int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
return -ENOMEM;
}
+ host_iface = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0];
+ protocol = host_iface->desc.bInterfaceProtocol;
+
+ /* FIXME! */
+ if (protocol != UAC_VERSION_1) {
+ snd_printk(KERN_WARNING "mixer interface protocol 0x%02x not yet supported\n",
+ protocol);
+ return 0;
+ }
+
if ((err = snd_usb_mixer_controls(mixer)) < 0 ||
(err = snd_usb_mixer_status_create(mixer)) < 0)
goto _error;
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-02 21:11:06 +0000