return val;
}
+static int uac2_ctl_value_size(int val_type)
+{
+ switch (val_type) {
+ case USB_MIXER_S32:
+ case USB_MIXER_U32:
+ return 4;
+ case USB_MIXER_S16:
+ case USB_MIXER_U16:
+ return 2;
+ default:
+ return 1;
+ }
+ return 0; /* unreachable */
+}
+
/*
* retrieve a mixer value
int timeout = 10;
int idx = 0, err;
- err = snd_usb_autoresume(chip);
+ err = snd_usb_lock_shutdown(chip);
if (err < 0)
return -EIO;
- down_read(&chip->shutdown_rwsem);
while (timeout-- > 0) {
- if (chip->shutdown)
- break;
idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8);
if (snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request,
USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
err = -EINVAL;
out:
- up_read(&chip->shutdown_rwsem);
- snd_usb_autosuspend(chip);
+ snd_usb_unlock_shutdown(chip);
return err;
}
int validx, int *value_ret)
{
struct snd_usb_audio *chip = cval->head.mixer->chip;
- unsigned char buf[2 + 3 * sizeof(__u16)]; /* enough space for one range */
+ unsigned char buf[4 + 3 * sizeof(__u32)]; /* enough space for one range */
unsigned char *val;
int idx = 0, ret, size;
__u8 bRequest;
if (request == UAC_GET_CUR) {
bRequest = UAC2_CS_CUR;
- size = sizeof(__u16);
+ size = uac2_ctl_value_size(cval->val_type);
} else {
bRequest = UAC2_CS_RANGE;
size = sizeof(buf);
memset(buf, 0, sizeof(buf));
- ret = snd_usb_autoresume(chip) ? -EIO : 0;
+ ret = snd_usb_lock_shutdown(chip) ? -EIO : 0;
if (ret)
goto error;
- down_read(&chip->shutdown_rwsem);
- if (chip->shutdown) {
- ret = -ENODEV;
- } else {
- idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8);
- ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest,
+ idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8);
+ ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest,
USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
validx, idx, buf, size);
- }
- up_read(&chip->shutdown_rwsem);
- snd_usb_autosuspend(chip);
+ snd_usb_unlock_shutdown(chip);
if (ret < 0) {
error:
int request, int validx, int value_set)
{
struct snd_usb_audio *chip = cval->head.mixer->chip;
- unsigned char buf[2];
+ unsigned char buf[4];
int idx = 0, val_len, err, timeout = 10;
validx += cval->idx_off;
if (cval->head.mixer->protocol == UAC_VERSION_1) {
val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1;
} else { /* UAC_VERSION_2 */
- /* audio class v2 controls are always 2 bytes in size */
- val_len = sizeof(__u16);
+ val_len = uac2_ctl_value_size(cval->val_type);
/* FIXME */
if (request != UAC_SET_CUR) {
value_set = convert_bytes_value(cval, value_set);
buf[0] = value_set & 0xff;
buf[1] = (value_set >> 8) & 0xff;
- err = snd_usb_autoresume(chip);
+ buf[2] = (value_set >> 16) & 0xff;
+ buf[3] = (value_set >> 24) & 0xff;
+
+ err = snd_usb_lock_shutdown(chip);
if (err < 0)
return -EIO;
- down_read(&chip->shutdown_rwsem);
+
while (timeout-- > 0) {
- if (chip->shutdown)
- break;
idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8);
if (snd_usb_ctl_msg(chip->dev,
usb_sndctrlpipe(chip->dev, 0), request,
err = -EINVAL;
out:
- up_read(&chip->shutdown_rwsem);
- snd_usb_autosuspend(chip);
+ snd_usb_unlock_shutdown(chip);
return err;
}
term->name = d->iTerminal;
} else { /* UAC_VERSION_2 */
struct uac2_input_terminal_descriptor *d = p1;
- term->type = le16_to_cpu(d->wTerminalType);
- term->channels = d->bNrChannels;
- term->chconfig = le32_to_cpu(d->bmChannelConfig);
- term->name = d->iTerminal;
- /* call recursively to get the clock selectors */
+ /* call recursively to verify that the
+ * referenced clock entity is valid */
err = check_input_term(state, d->bCSourceID, term);
if (err < 0)
return err;
+
+ /* save input term properties after recursion,
+ * to ensure they are not overriden by the
+ * recursion calls */
+ term->id = id;
+ term->type = le16_to_cpu(d->wTerminalType);
+ term->channels = d->bNrChannels;
+ term->chconfig = le32_to_cpu(d->bmChannelConfig);
+ term->name = d->iTerminal;
}
return 0;
case UAC_FEATURE_UNIT: {
/* feature unit control information */
struct usb_feature_control_info {
const char *name;
- unsigned int type; /* control type (mute, volume, etc.) */
+ int type; /* data type for uac1 */
+ int type_uac2; /* data type for uac2 if different from uac1, else -1 */
};
static struct usb_feature_control_info audio_feature_info[] = {
- { "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 },
+ { "Mute", USB_MIXER_INV_BOOLEAN, -1 },
+ { "Volume", USB_MIXER_S16, -1 },
+ { "Tone Control - Bass", USB_MIXER_S8, -1 },
+ { "Tone Control - Mid", USB_MIXER_S8, -1 },
+ { "Tone Control - Treble", USB_MIXER_S8, -1 },
+ { "Graphic Equalizer", USB_MIXER_S8, -1 }, /* FIXME: not implemeted yet */
+ { "Auto Gain Control", USB_MIXER_BOOLEAN, -1 },
+ { "Delay Control", USB_MIXER_U16, USB_MIXER_U32 },
+ { "Bass Boost", USB_MIXER_BOOLEAN, -1 },
+ { "Loudness", USB_MIXER_BOOLEAN, -1 },
/* UAC2 specific */
- { "Input Gain Control", USB_MIXER_U16 },
- { "Input Gain Pad Control", USB_MIXER_BOOLEAN },
- { "Phase Inverter Control", USB_MIXER_BOOLEAN },
+ { "Input Gain Control", USB_MIXER_S16, -1 },
+ { "Input Gain Pad Control", USB_MIXER_S16, -1 },
+ { "Phase Inverter Control", USB_MIXER_BOOLEAN, -1 },
};
/* private_free callback */
int readonly_mask)
{
struct uac_feature_unit_descriptor *desc = raw_desc;
+ struct usb_feature_control_info *ctl_info;
unsigned int len = 0;
int mapped_name = 0;
int nameid = uac_feature_unit_iFeature(desc);
snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid);
cval->control = control;
cval->cmask = ctl_mask;
- cval->val_type = audio_feature_info[control-1].type;
+ ctl_info = &audio_feature_info[control-1];
+ if (state->mixer->protocol == UAC_VERSION_1)
+ cval->val_type = ctl_info->type;
+ else /* UAC_VERSION_2 */
+ cval->val_type = ctl_info->type_uac2 >= 0 ?
+ ctl_info->type_uac2 : ctl_info->type;
+
if (ctl_mask == 0) {
cval->channels = 1; /* master channel */
cval->master_readonly = readonly_mask;
}
}
+ snd_usb_mixer_fu_apply_quirk(state->mixer, cval, unitid, kctl);
+
range = (cval->max - cval->min) / cval->res;
/*
* Are there devices with volume range more than 255? I use a bit more
Code Review / kvmfornfv.git / blobdiff