diff options
Diffstat (limited to 'sound/usb/mixer.c')
| -rw-r--r-- | sound/usb/mixer.c | 114 |
1 files changed, 66 insertions, 48 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index 6b3acba5da7a..f494dced3c11 100644 --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -282,6 +282,21 @@ static int get_abs_value(struct usb_mixer_elem_info *cval, int val) 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 @@ -296,14 +311,11 @@ static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, 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, @@ -319,8 +331,7 @@ static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, err = -EINVAL; out: - up_read(&chip->shutdown_rwsem); - snd_usb_autosuspend(chip); + snd_usb_unlock_shutdown(chip); return err; } @@ -328,14 +339,14 @@ static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, 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); @@ -343,21 +354,15 @@ static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, 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: @@ -446,7 +451,7 @@ int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, 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; @@ -454,8 +459,7 @@ int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, 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) { @@ -469,13 +473,14 @@ int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, 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, @@ -490,8 +495,7 @@ int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, err = -EINVAL; out: - up_read(&chip->shutdown_rwsem); - snd_usb_autosuspend(chip); + snd_usb_unlock_shutdown(chip); return err; } @@ -715,15 +719,21 @@ static int check_input_term(struct mixer_build *state, int id, 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: { @@ -798,24 +808,25 @@ static int check_input_term(struct mixer_build *state, int id, /* 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 }, /* FIXME: U32 in UAC2 */ - { "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_S16 }, - { "Input Gain Pad Control", USB_MIXER_S16 }, - { "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 */ @@ -1215,6 +1226,7 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc, 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); @@ -1240,7 +1252,13 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_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; @@ -2522,7 +2540,7 @@ static int restore_mixer_value(struct usb_mixer_elem_list *list) for (c = 0; c < MAX_CHANNELS; c++) { if (!(cval->cmask & (1 << c))) continue; - if (cval->cached & (1 << c)) { + if (cval->cached & (1 << (c + 1))) { err = snd_usb_set_cur_mix_value(cval, c + 1, idx, cval->cache_val[idx]); if (err < 0) |