diff options
Diffstat (limited to 'sound/usb/mixer.c')
| -rw-r--r-- | sound/usb/mixer.c | 960 |
1 files changed, 659 insertions, 301 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index f2d74d654b3..0b728d886f0 100644 --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -61,6 +61,7 @@ #include "mixer.h" #include "helper.h" #include "mixer_quirks.h" +#include "power.h" #define MAX_ID_ELEMS 256 @@ -85,17 +86,7 @@ struct mixer_build { const struct usbmix_selector_map *selector_map; }; -enum { - USB_MIXER_BOOLEAN, - USB_MIXER_INV_BOOLEAN, - USB_MIXER_S8, - USB_MIXER_U8, - USB_MIXER_S16, - USB_MIXER_U16, -}; - - -/*E-mu 0202(0404) eXtension Unit(XU) control*/ +/*E-mu 0202/0404/0204 eXtension Unit(XU) control*/ enum { USB_XU_CLOCK_RATE = 0xe301, USB_XU_CLOCK_SOURCE = 0xe302, @@ -161,6 +152,7 @@ static inline void check_mapped_dB(const struct usbmix_name_map *p, if (p && p->dB) { cval->dBmin = p->dB->min; cval->dBmax = p->dB->max; + cval->initialized = 1; } } @@ -170,7 +162,7 @@ static int check_mapped_selector_name(struct mixer_build *state, int unitid, { const struct usbmix_selector_map *p; - if (! state->selector_map) + if (!state->selector_map) return 0; for (p = state->selector_map; p->id; p++) { if (p->id == unitid && index < p->count) @@ -182,7 +174,8 @@ static int check_mapped_selector_name(struct mixer_build *state, int unitid, /* * find an audio control unit with the given unit id */ -static void *find_audio_control_unit(struct mixer_build *state, unsigned char unit) +static void *find_audio_control_unit(struct mixer_build *state, + unsigned char unit) { /* we just parse the header */ struct uac_feature_unit_descriptor *hdr = NULL; @@ -202,7 +195,8 @@ static void *find_audio_control_unit(struct mixer_build *state, unsigned char un /* * copy a string with the given id */ -static int snd_usb_copy_string_desc(struct mixer_build *state, int index, char *buf, int maxlen) +static int snd_usb_copy_string_desc(struct mixer_build *state, + int index, char *buf, int maxlen) { int len = usb_string(state->chip->dev, index, buf, maxlen - 1); buf[len] = 0; @@ -261,7 +255,7 @@ static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) static int get_relative_value(struct usb_mixer_elem_info *cval, int val) { - if (! cval->res) + if (!cval->res) cval->res = 1; if (val < cval->min) return 0; @@ -275,7 +269,7 @@ static int get_abs_value(struct usb_mixer_elem_info *cval, int val) { if (val < 0) return cval->min; - if (! cval->res) + if (!cval->res) cval->res = 1; val *= cval->res; val += cval->min; @@ -289,33 +283,50 @@ static int get_abs_value(struct usb_mixer_elem_info *cval, int val) * retrieve a mixer value */ -static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) +static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, + int validx, int *value_ret) { struct snd_usb_audio *chip = cval->mixer->chip; unsigned char buf[2]; int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; int timeout = 10; + int idx = 0, err; + err = snd_usb_autoresume(cval->mixer->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->id << 8); if (snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, - validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), - buf, val_len, 100) >= val_len) { + validx, idx, buf, val_len) >= val_len) { *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); - return 0; + err = 0; + goto out; } } - snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", - request, validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), cval->val_type); - return -EINVAL; + usb_audio_dbg(chip, + "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", + request, validx, idx, cval->val_type); + err = -EINVAL; + + out: + up_read(&chip->shutdown_rwsem); + snd_usb_autosuspend(cval->mixer->chip); + return err; } -static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) +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->mixer->chip; - unsigned char buf[2 + 3*sizeof(__u16)]; /* enough space for one range */ + unsigned char buf[2 + 3 * sizeof(__u16)]; /* enough space for one range */ unsigned char *val; - int ret, size; + int idx = 0, ret, size; __u8 bRequest; if (request == UAC_GET_CUR) { @@ -328,14 +339,27 @@ static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int v memset(buf, 0, sizeof(buf)); - ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, + ret = snd_usb_autoresume(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->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, snd_usb_ctrl_intf(chip) | (cval->id << 8), - buf, size, 1000); + validx, idx, buf, size); + } + up_read(&chip->shutdown_rwsem); + snd_usb_autosuspend(chip); if (ret < 0) { - snd_printk(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", - request, validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), cval->val_type); +error: + usb_audio_err(chip, + "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", + request, validx, idx, cval->val_type); return ret; } @@ -363,14 +387,18 @@ static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int v return 0; } -static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) +static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, + int validx, int *value_ret) { + validx += cval->idx_off; + return (cval->mixer->protocol == UAC_VERSION_1) ? get_ctl_value_v1(cval, request, validx, value_ret) : get_ctl_value_v2(cval, request, validx, value_ret); } -static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int *value) +static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, + int validx, int *value) { return get_ctl_value(cval, UAC_GET_CUR, validx, value); } @@ -379,7 +407,9 @@ static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int * static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, int channel, int *value) { - return get_ctl_value(cval, UAC_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, @@ -394,8 +424,9 @@ static int get_cur_mix_value(struct usb_mixer_elem_info *cval, err = get_cur_mix_raw(cval, channel, value); if (err < 0) { if (!cval->mixer->ignore_ctl_error) - snd_printd(KERN_ERR "cannot get current value for control %d ch %d: err = %d\n", - cval->control, channel, err); + usb_audio_dbg(cval->mixer->chip, + "cannot get current value for control %d ch %d: err = %d\n", + cval->control, channel, err); return err; } cval->cached |= 1 << channel; @@ -403,7 +434,6 @@ static int get_cur_mix_value(struct usb_mixer_elem_info *cval, return 0; } - /* * set a mixer value */ @@ -413,7 +443,9 @@ int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, { struct snd_usb_audio *chip = cval->mixer->chip; unsigned char buf[2]; - int val_len, timeout = 10; + int idx = 0, val_len, err, timeout = 10; + + validx += cval->idx_off; if (cval->mixer->protocol == UAC_VERSION_1) { val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; @@ -423,7 +455,7 @@ int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, /* FIXME */ if (request != UAC_SET_CUR) { - snd_printdd(KERN_WARNING "RANGE setting not yet supported\n"); + usb_audio_dbg(chip, "RANGE setting not yet supported\n"); return -EINVAL; } @@ -433,19 +465,34 @@ 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; - while (timeout-- > 0) + err = snd_usb_autoresume(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->id << 8); if (snd_usb_ctl_msg(chip->dev, usb_sndctrlpipe(chip->dev, 0), request, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, - validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), - buf, val_len, 100) >= 0) - return 0; - snd_printdd(KERN_ERR "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", - request, validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), cval->val_type, buf[0], buf[1]); - return -EINVAL; + validx, idx, buf, val_len) >= 0) { + err = 0; + goto out; + } + } + usb_audio_dbg(chip, "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", + request, validx, idx, cval->val_type, buf[0], buf[1]); + err = -EINVAL; + + out: + up_read(&chip->shutdown_rwsem); + snd_usb_autosuspend(chip); + return err; } -static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int value) +static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, + int validx, int value) { return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); } @@ -459,13 +506,15 @@ static int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, cval->ch_readonly & (1 << (channel - 1)); if (read_only) { - snd_printdd(KERN_INFO "%s(): channel %d of control %d is read_only\n", + usb_audio_dbg(cval->mixer->chip, + "%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); + err = snd_usb_mixer_set_ctl_value(cval, + UAC_SET_CUR, (cval->control << 8) | channel, + value); if (err < 0) return err; cval->cached |= 1 << channel; @@ -476,7 +525,7 @@ static int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, /* * TLV callback for mixer volume controls */ -static int mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, +int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, unsigned int size, unsigned int __user *_tlv) { struct usb_mixer_elem_info *cval = kcontrol->private_data; @@ -502,13 +551,13 @@ static int parse_audio_unit(struct mixer_build *state, int unitid); * check if the input/output channel routing is enabled on the given bitmap. * used for mixer unit parser */ -static int check_matrix_bitmap(unsigned char *bmap, int ich, int och, int num_outs) +static int check_matrix_bitmap(unsigned char *bmap, + int ich, int och, int num_outs) { int idx = ich * num_outs + och; return bmap[idx >> 3] & (0x80 >> (idx & 7)); } - /* * add an alsa control element * search and increment the index until an empty slot is found. @@ -516,24 +565,25 @@ static int check_matrix_bitmap(unsigned char *bmap, int ich, int och, int num_ou * if failed, give up and free the control instance. */ -static int add_control_to_empty(struct mixer_build *state, struct snd_kcontrol *kctl) +int snd_usb_mixer_add_control(struct usb_mixer_interface *mixer, + struct snd_kcontrol *kctl) { struct usb_mixer_elem_info *cval = kctl->private_data; int err; - while (snd_ctl_find_id(state->chip->card, &kctl->id)) + while (snd_ctl_find_id(mixer->chip->card, &kctl->id)) kctl->id.index++; - if ((err = snd_ctl_add(state->chip->card, kctl)) < 0) { - snd_printd(KERN_ERR "cannot add control (err = %d)\n", err); + if ((err = snd_ctl_add(mixer->chip->card, kctl)) < 0) { + usb_audio_dbg(mixer->chip, "cannot add control (err = %d)\n", + err); return err; } cval->elem_id = &kctl->id; - cval->next_id_elem = state->mixer->id_elems[cval->id]; - state->mixer->id_elems[cval->id] = cval; + cval->next_id_elem = mixer->id_elems[cval->id]; + mixer->id_elems[cval->id] = cval; return 0; } - /* * get a terminal name string */ @@ -587,7 +637,8 @@ static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm struct iterm_name_combo *names; if (iterm->name) - return snd_usb_copy_string_desc(state, iterm->name, name, maxlen); + return snd_usb_copy_string_desc(state, iterm->name, + name, maxlen); /* virtual type - not a real terminal */ if (iterm->type >> 16) { @@ -595,13 +646,17 @@ static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm return 0; switch (iterm->type >> 16) { case UAC_SELECTOR_UNIT: - strcpy(name, "Selector"); return 8; + strcpy(name, "Selector"); + return 8; case UAC1_PROCESSING_UNIT: - strcpy(name, "Process Unit"); return 12; + strcpy(name, "Process Unit"); + return 12; case UAC1_EXTENSION_UNIT: - strcpy(name, "Ext Unit"); return 8; + strcpy(name, "Ext Unit"); + return 8; case UAC_MIXER_UNIT: - strcpy(name, "Mixer"); return 5; + strcpy(name, "Mixer"); + return 5; default: return sprintf(name, "Unit %d", iterm->id); } @@ -609,29 +664,35 @@ static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm switch (iterm->type & 0xff00) { case 0x0100: - strcpy(name, "PCM"); return 3; + strcpy(name, "PCM"); + return 3; case 0x0200: - strcpy(name, "Mic"); return 3; + strcpy(name, "Mic"); + return 3; case 0x0400: - strcpy(name, "Headset"); return 7; + strcpy(name, "Headset"); + return 7; case 0x0500: - strcpy(name, "Phone"); return 5; + strcpy(name, "Phone"); + return 5; } - for (names = iterm_names; names->type; names++) + for (names = iterm_names; names->type; names++) { if (names->type == iterm->type) { strcpy(name, names->name); return strlen(names->name); } + } + return 0; } - /* * parse the source unit recursively until it reaches to a terminal * or a branched unit. */ -static int check_input_term(struct mixer_build *state, int id, struct usb_audio_term *term) +static int check_input_term(struct mixer_build *state, int id, + struct usb_audio_term *term) { int err; void *p1; @@ -679,16 +740,29 @@ static int check_input_term(struct mixer_build *state, int id, struct usb_audio_ 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) - return -ENODEV; + err = check_input_term(state, d->baSourceID[0], term); + if (err < 0) + return err; term->type = d->bDescriptorSubtype << 16; /* virtual type */ term->id = id; term->name = uac_selector_unit_iSelector(d); return 0; } case UAC1_PROCESSING_UNIT: - case UAC1_EXTENSION_UNIT: { + case UAC1_EXTENSION_UNIT: + /* UAC2_PROCESSING_UNIT_V2 */ + /* UAC2_EFFECT_UNIT */ + case UAC2_EXTENSION_UNIT_V2: { struct uac_processing_unit_descriptor *d = p1; + + if (state->mixer->protocol == UAC_VERSION_2 && + hdr[2] == UAC2_EFFECT_UNIT) { + /* UAC2/UAC1 unit IDs overlap here in an + * uncompatible way. Ignore this unit for now. + */ + return 0; + } + if (d->bNrInPins) { id = d->baSourceID[0]; break; /* continue to parse */ @@ -713,7 +787,6 @@ static int check_input_term(struct mixer_build *state, int id, struct usb_audio_ return -ENODEV; } - /* * Feature Unit */ @@ -741,7 +814,6 @@ static struct usb_feature_control_info audio_feature_info[] = { { "Phase Inverter Control", USB_MIXER_BOOLEAN }, }; - /* private_free callback */ static void usb_mixer_elem_free(struct snd_kcontrol *kctl) { @@ -749,15 +821,117 @@ static void usb_mixer_elem_free(struct snd_kcontrol *kctl) kctl->private_data = NULL; } - /* * interface to ALSA control for feature/mixer units */ +/* volume control quirks */ +static void volume_control_quirks(struct usb_mixer_elem_info *cval, + struct snd_kcontrol *kctl) +{ + struct snd_usb_audio *chip = cval->mixer->chip; + switch (chip->usb_id) { + case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */ + case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C600 */ + if (strcmp(kctl->id.name, "Effect Duration") == 0) { + cval->min = 0x0000; + cval->max = 0xffff; + cval->res = 0x00e6; + break; + } + if (strcmp(kctl->id.name, "Effect Volume") == 0 || + strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { + cval->min = 0x00; + cval->max = 0xff; + break; + } + if (strstr(kctl->id.name, "Effect Return") != NULL) { + cval->min = 0xb706; + cval->max = 0xff7b; + cval->res = 0x0073; + break; + } + if ((strstr(kctl->id.name, "Playback Volume") != NULL) || + (strstr(kctl->id.name, "Effect Send") != NULL)) { + cval->min = 0xb5fb; /* -73 dB = 0xb6ff */ + cval->max = 0xfcfe; + cval->res = 0x0073; + } + break; + + case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */ + case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */ + if (strcmp(kctl->id.name, "Effect Duration") == 0) { + usb_audio_info(chip, + "set quirk for FTU Effect Duration\n"); + cval->min = 0x0000; + cval->max = 0x7f00; + cval->res = 0x0100; + break; + } + if (strcmp(kctl->id.name, "Effect Volume") == 0 || + strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { + usb_audio_info(chip, + "set quirks for FTU Effect Feedback/Volume\n"); + cval->min = 0x00; + cval->max = 0x7f; + break; + } + break; + + case USB_ID(0x0471, 0x0101): + case USB_ID(0x0471, 0x0104): + case USB_ID(0x0471, 0x0105): + case USB_ID(0x0672, 0x1041): + /* quirk for UDA1321/N101. + * note that detection between firmware 2.1.1.7 (N101) + * and later 2.1.1.21 is not very clear from datasheets. + * I hope that the min value is -15360 for newer firmware --jk + */ + if (!strcmp(kctl->id.name, "PCM Playback Volume") && + cval->min == -15616) { + usb_audio_info(chip, + "set volume quirk for UDA1321/N101 chip\n"); + cval->max = -256; + } + break; + + case USB_ID(0x046d, 0x09a4): + if (!strcmp(kctl->id.name, "Mic Capture Volume")) { + usb_audio_info(chip, + "set volume quirk for QuickCam E3500\n"); + cval->min = 6080; + cval->max = 8768; + cval->res = 192; + } + break; + + case USB_ID(0x046d, 0x0807): /* Logitech Webcam C500 */ + case USB_ID(0x046d, 0x0808): + case USB_ID(0x046d, 0x0809): + case USB_ID(0x046d, 0x081b): /* HD Webcam c310 */ + case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */ + case USB_ID(0x046d, 0x0825): /* HD Webcam c270 */ + case USB_ID(0x046d, 0x0826): /* HD Webcam c525 */ + case USB_ID(0x046d, 0x0991): + /* Most audio usb devices lie about volume resolution. + * Most Logitech webcams have res = 384. + * Proboly there is some logitech magic behind this number --fishor + */ + if (!strcmp(kctl->id.name, "Mic Capture Volume")) { + usb_audio_info(chip, + "set resolution quirk: cval->res = 384\n"); + cval->res = 384; + } + break; + } +} + /* * retrieve the minimum and maximum values for the specified control */ -static int get_min_max(struct usb_mixer_elem_info *cval, int default_min) +static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval, + int default_min, struct snd_kcontrol *kctl) { /* for failsafe */ cval->min = default_min; @@ -780,22 +954,28 @@ static int get_min_max(struct usb_mixer_elem_info *cval, int default_min) } 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, snd_usb_ctrl_intf(cval->mixer->chip), cval->control, cval->id); + usb_audio_err(cval->mixer->chip, + "%d:%d: cannot get min/max values for control %d (id %d)\n", + cval->id, snd_usb_ctrl_intf(cval->mixer->chip), + cval->control, cval->id); return -EINVAL; } - if (get_ctl_value(cval, UAC_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 (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, - (cval->control << 8) | minchn, cval->res / 2) < 0) + (cval->control << 8) | minchn, + cval->res / 2) < 0) break; cval->res /= 2; } - if (get_ctl_value(cval, UAC_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) @@ -833,6 +1013,9 @@ static int get_min_max(struct usb_mixer_elem_info *cval, int default_min) cval->initialized = 1; } + if (kctl) + volume_control_quirks(cval, kctl); + /* USB descriptions contain the dB scale in 1/256 dB unit * while ALSA TLV contains in 1/100 dB unit */ @@ -853,9 +1036,11 @@ static int get_min_max(struct usb_mixer_elem_info *cval, int default_min) return 0; } +#define get_min_max(cval, def) get_min_max_with_quirks(cval, def, NULL) /* get a feature/mixer unit info */ -static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) +static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) { struct usb_mixer_elem_info *cval = kcontrol->private_data; @@ -870,8 +1055,17 @@ static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, struct snd_ctl_ uinfo->value.integer.min = 0; uinfo->value.integer.max = 1; } else { - if (! cval->initialized) - get_min_max(cval, 0); + if (!cval->initialized) { + get_min_max_with_quirks(cval, 0, kcontrol); + if (cval->initialized && cval->dBmin >= cval->dBmax) { + kcontrol->vd[0].access &= + ~(SNDRV_CTL_ELEM_ACCESS_TLV_READ | + SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK); + snd_ctl_notify(cval->mixer->chip->card, + SNDRV_CTL_EVENT_MASK_INFO, + &kcontrol->id); + } + } uinfo->value.integer.min = 0; uinfo->value.integer.max = (cval->max - cval->min + cval->res - 1) / cval->res; @@ -880,7 +1074,8 @@ static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, struct snd_ctl_ } /* get the current value from feature/mixer unit */ -static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) +static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) { struct usb_mixer_elem_info *cval = kcontrol->private_data; int c, cnt, val, err; @@ -911,7 +1106,8 @@ static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, struct snd_ctl_e } /* put the current value to feature/mixer unit */ -static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) +static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) { struct usb_mixer_elem_info *cval = kcontrol->private_data; int c, cnt, val, oval, err; @@ -965,16 +1161,48 @@ static struct snd_kcontrol_new usb_feature_unit_ctl_ro = { .put = NULL, }; +/* + * This symbol is exported in order to allow the mixer quirks to + * hook up to the standard feature unit control mechanism + */ +struct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl; /* * build a feature control */ - static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) { return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); } +/* + * A lot of headsets/headphones have a "Speaker" mixer. Make sure we + * rename it to "Headphone". We determine if something is a headphone + * similar to how udev determines form factor. + */ +static void check_no_speaker_on_headset(struct snd_kcontrol *kctl, + struct snd_card *card) +{ + const char *names_to_check[] = { + "Headset", "headset", "Headphone", "headphone", NULL}; + const char **s; + bool found = false; + + if (strcmp("Speaker", kctl->id.name)) + return; + + for (s = names_to_check; *s; s++) + if (strstr(card->shortname, *s)) { + found = true; + break; + } + + if (!found) + return; + + strlcpy(kctl->id.name, "Headphone", sizeof(kctl->id.name)); +} + 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, @@ -987,6 +1215,7 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc, struct snd_kcontrol *kctl; struct usb_mixer_elem_info *cval; const struct usbmix_name_map *map; + unsigned int range; control++; /* change from zero-based to 1-based value */ @@ -1000,10 +1229,8 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc, return; cval = kzalloc(sizeof(*cval), GFP_KERNEL); - if (! cval) { - snd_printk(KERN_ERR "cannot malloc kcontrol\n"); + if (!cval) return; - } cval->mixer = state->mixer; cval->id = unitid; cval->control = control; @@ -1021,19 +1248,18 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc, cval->ch_readonly = readonly_mask; } - /* get min/max values */ - get_min_max(cval, 0); - - /* if all channels in the mask are marked read-only, make the control + /* + * 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. */ + * 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); - if (! kctl) { - snd_printk(KERN_ERR "cannot malloc kcontrol\n"); + if (!kctl) { + usb_audio_err(state->chip, "cannot malloc kcontrol\n"); kfree(cval); return; } @@ -1041,114 +1267,101 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc, len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); mapped_name = len != 0; - if (! len && nameid) + if (!len && nameid) len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); switch (control) { case UAC_FU_MUTE: case UAC_FU_VOLUME: - /* determine the control name. the rule is: + /* + * 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 * of terminal type. * - if the connected output can be determined, use it. * - otherwise, anonymous name. */ - if (! len) { - len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 1); - if (! len) - len = get_term_name(state, &state->oterm, kctl->id.name, sizeof(kctl->id.name), 1); - if (! len) - len = snprintf(kctl->id.name, sizeof(kctl->id.name), + if (!len) { + len = get_term_name(state, iterm, kctl->id.name, + sizeof(kctl->id.name), 1); + if (!len) + len = get_term_name(state, &state->oterm, + kctl->id.name, + sizeof(kctl->id.name), 1); + if (!len) + len = snprintf(kctl->id.name, + sizeof(kctl->id.name), "Feature %d", unitid); } - /* determine the stream direction: + + if (!mapped_name) + check_no_speaker_on_headset(kctl, state->mixer->chip->card); + + /* + * determine the stream direction: * if the connected output is USB stream, then it's likely a * capture stream. otherwise it should be playback (hopefully :) */ - if (! mapped_name && ! (state->oterm.type >> 16)) { - if ((state->oterm.type & 0xff00) == 0x0100) { + if (!mapped_name && !(state->oterm.type >> 16)) { + if ((state->oterm.type & 0xff00) == 0x0100) len = append_ctl_name(kctl, " Capture"); - } else { + else len = append_ctl_name(kctl, " Playback"); - } } append_ctl_name(kctl, control == UAC_FU_MUTE ? " Switch" : " Volume"); - if (control == UAC_FU_VOLUME) { - kctl->tlv.c = mixer_vol_tlv; - kctl->vd[0].access |= - SNDRV_CTL_ELEM_ACCESS_TLV_READ | - SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; - check_mapped_dB(map, cval); - } break; - default: - if (! len) + if (!len) strlcpy(kctl->id.name, audio_feature_info[control-1].name, sizeof(kctl->id.name)); break; } - /* volume control quirks */ - switch (state->chip->usb_id) { - case USB_ID(0x0471, 0x0101): - case USB_ID(0x0471, 0x0104): - case USB_ID(0x0471, 0x0105): - case USB_ID(0x0672, 0x1041): - /* quirk for UDA1321/N101. - * note that detection between firmware 2.1.1.7 (N101) - * and later 2.1.1.21 is not very clear from datasheets. - * I hope that the min value is -15360 for newer firmware --jk - */ - if (!strcmp(kctl->id.name, "PCM Playback Volume") && - cval->min == -15616) { - snd_printk(KERN_INFO - "set volume quirk for UDA1321/N101 chip\n"); - cval->max = -256; - } - break; - - case USB_ID(0x046d, 0x09a4): - if (!strcmp(kctl->id.name, "Mic Capture Volume")) { - snd_printk(KERN_INFO - "set volume quirk for QuickCam E3500\n"); - cval->min = 6080; - cval->max = 8768; - cval->res = 192; - } - break; + /* get min/max values */ + get_min_max_with_quirks(cval, 0, kctl); - case USB_ID(0x046d, 0x0809): - case USB_ID(0x046d, 0x0991): - /* Most audio usb devices lie about volume resolution. - * Most Logitech webcams have res = 384. - * Proboly there is some logitech magic behind this number --fishor - */ - if (!strcmp(kctl->id.name, "Mic Capture Volume")) { - snd_printk(KERN_INFO - "set resolution quirk: cval->res = 384\n"); - cval->res = 384; + if (control == UAC_FU_VOLUME) { + check_mapped_dB(map, cval); + if (cval->dBmin < cval->dBmax || !cval->initialized) { + kctl->tlv.c = snd_usb_mixer_vol_tlv; + kctl->vd[0].access |= + SNDRV_CTL_ELEM_ACCESS_TLV_READ | + SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; } - break; - } - snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", - cval->id, kctl->id.name, cval->channels, cval->min, cval->max, cval->res); - add_control_to_empty(state, kctl); + range = (cval->max - cval->min) / cval->res; + /* + * Are there devices with volume range more than 255? I use a bit more + * to be sure. 384 is a resolution magic number found on Logitech + * devices. It will definitively catch all buggy Logitech devices. + */ + if (range > 384) { + usb_audio_warn(state->chip, + "Warning! Unlikely big volume range (=%u), " + "cval->res is probably wrong.", + range); + usb_audio_warn(state->chip, "[%d] FU [%s] ch = %d, " + "val = %d/%d/%d", cval->id, + kctl->id.name, cval->channels, + cval->min, cval->max, cval->res); + } + + usb_audio_dbg(state->chip, "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", + cval->id, kctl->id.name, cval->channels, + cval->min, cval->max, cval->res); + snd_usb_mixer_add_control(state->mixer, kctl); } - - /* * parse a feature unit * - * most of controlls are defined here. + * most of controls are defined here. */ -static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void *_ftr) +static int parse_audio_feature_unit(struct mixer_build *state, int unitid, + void *_ftr) { int channels, i, j; struct usb_audio_term iterm; @@ -1159,18 +1372,31 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void if (state->mixer->protocol == UAC_VERSION_1) { csize = hdr->bControlSize; + if (!csize) { + usb_audio_dbg(state->chip, + "unit %u: invalid bControlSize == 0\n", + unitid); + return -EINVAL; + } channels = (hdr->bLength - 7) / csize - 1; bmaControls = hdr->bmaControls; + if (hdr->bLength < 7 + csize) { + usb_audio_err(state->chip, + "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", + unitid); + return -EINVAL; + } } else { struct uac2_feature_unit_descriptor *ftr = _ftr; csize = 4; channels = (hdr->bLength - 6) / 4 - 1; bmaControls = ftr->bmaControls; - } - - if (hdr->bLength < 7 || !csize || hdr->bLength < 7 + csize) { - snd_printk(KERN_ERR "usbaudio: unit %u: invalid UAC_FEATURE_UNIT descriptor\n", unitid); - return -EINVAL; + if (hdr->bLength < 6 + csize) { + usb_audio_err(state->chip, + "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", + unitid); + return -EINVAL; + } } /* parse the source unit */ @@ -1178,18 +1404,26 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void return err; /* determine the input source type and name */ - if (check_input_term(state, hdr->bSourceID, &iterm) < 0) - return -EINVAL; + err = check_input_term(state, hdr->bSourceID, &iterm); + if (err < 0) + return err; master_bits = snd_usb_combine_bytes(bmaControls, csize); /* master configuration quirks */ switch (state->chip->usb_id) { case USB_ID(0x08bb, 0x2702): - snd_printk(KERN_INFO - "usbmixer: master volume quirk for PCM2702 chip\n"); + usb_audio_info(state->chip, + "usbmixer: master volume quirk for PCM2702 chip\n"); /* disable non-functional volume control */ master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); break; + case USB_ID(0x1130, 0xf211): + usb_audio_info(state->chip, + "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n"); + /* disable non-functional volume control */ + channels = 0; + break; + } if (channels > 0) first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); @@ -1201,23 +1435,36 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void for (i = 0; i < 10; i++) { unsigned int ch_bits = 0; for (j = 0; j < channels; j++) { - unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); + unsigned int mask; + + mask = snd_usb_combine_bytes(bmaControls + + csize * (j+1), csize); if (mask & (1 << i)) ch_bits |= (1 << j); } /* audio class v1 controls are never read-only */ - if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ - build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, 0); + + /* + * The first channel must be set + * (for ease of programming). + */ + if (ch_bits & 1) + build_feature_ctl(state, _ftr, ch_bits, i, + &iterm, unitid, 0); if (master_bits & (1 << i)) - build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, 0); + build_feature_ctl(state, _ftr, 0, i, &iterm, + unitid, 0); } } else { /* UAC_VERSION_2 */ - for (i = 0; i < 30/2; i++) { + for (i = 0; i < ARRAY_SIZE(audio_feature_info); i++) { unsigned int ch_bits = 0; unsigned int ch_read_only = 0; for (j = 0; j < channels; j++) { - unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); + unsigned int mask; + + mask = snd_usb_combine_bytes(bmaControls + + csize * (j+1), csize); if (uac2_control_is_readable(mask, i)) { ch_bits |= (1 << j); if (!uac2_control_is_writeable(mask, i)) @@ -1225,12 +1472,22 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void } } - /* 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); + /* + * 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. + */ + + /* + * The first channel must be set + * (for ease of programming). + */ + if (ch_bits & 1) + 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, !uac2_control_is_writeable(master_bits, i)); @@ -1240,7 +1497,6 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void return 0; } - /* * Mixer Unit */ @@ -1251,7 +1507,6 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void * the callbacks are identical with feature unit. * input channel number (zero based) is given in control field instead. */ - static void build_mixer_unit_ctl(struct mixer_build *state, struct uac_mixer_unit_descriptor *desc, int in_pin, int in_ch, int unitid, @@ -1268,7 +1523,7 @@ static void build_mixer_unit_ctl(struct mixer_build *state, return; cval = kzalloc(sizeof(*cval), GFP_KERNEL); - if (! cval) + if (!cval) return; cval->mixer = state->mixer; @@ -1276,7 +1531,9 @@ static void build_mixer_unit_ctl(struct mixer_build *state, cval->control = in_ch + 1; /* based on 1 */ cval->val_type = USB_MIXER_S16; for (i = 0; i < num_outs; i++) { - if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), in_ch, i, num_outs)) { + __u8 *c = uac_mixer_unit_bmControls(desc, state->mixer->protocol); + + if (check_matrix_bitmap(c, in_ch, i, num_outs)) { cval->cmask |= (1 << i); cval->channels++; } @@ -1286,43 +1543,48 @@ static void build_mixer_unit_ctl(struct mixer_build *state, get_min_max(cval, 0); kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); - if (! kctl) { - snd_printk(KERN_ERR "cannot malloc kcontrol\n"); + if (!kctl) { + usb_audio_err(state->chip, "cannot malloc kcontrol\n"); kfree(cval); return; } kctl->private_free = usb_mixer_elem_free; len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); - if (! len) - len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 0); - if (! len) + if (!len) + len = get_term_name(state, iterm, kctl->id.name, + sizeof(kctl->id.name), 0); + if (!len) len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); append_ctl_name(kctl, " Volume"); - snd_printdd(KERN_INFO "[%d] MU [%s] ch = %d, val = %d/%d\n", + usb_audio_dbg(state->chip, "[%d] MU [%s] ch = %d, val = %d/%d\n", cval->id, kctl->id.name, cval->channels, cval->min, cval->max); - add_control_to_empty(state, kctl); + snd_usb_mixer_add_control(state->mixer, kctl); } - /* * parse a mixer unit */ -static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, void *raw_desc) +static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, + void *raw_desc) { struct uac_mixer_unit_descriptor *desc = raw_desc; struct usb_audio_term iterm; int input_pins, num_ins, num_outs; int pin, ich, err; - if (desc->bLength < 11 || ! (input_pins = desc->bNrInPins) || ! (num_outs = uac_mixer_unit_bNrChannels(desc))) { - snd_printk(KERN_ERR "invalid MIXER UNIT descriptor %d\n", unitid); + if (desc->bLength < 11 || !(input_pins = desc->bNrInPins) || + !(num_outs = uac_mixer_unit_bNrChannels(desc))) { + usb_audio_err(state->chip, + "invalid MIXER UNIT descriptor %d\n", + unitid); return -EINVAL; } /* no bmControls field (e.g. Maya44) -> ignore */ if (desc->bLength <= 10 + input_pins) { - snd_printdd(KERN_INFO "MU %d has no bmControls field\n", unitid); + usb_audio_dbg(state->chip, "MU %d has no bmControls field\n", + unitid); return 0; } @@ -1331,17 +1593,19 @@ static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, void *r for (pin = 0; pin < input_pins; pin++) { err = parse_audio_unit(state, desc->baSourceID[pin]); if (err < 0) - return err; + continue; err = check_input_term(state, desc->baSourceID[pin], &iterm); if (err < 0) return err; num_ins += iterm.channels; - for (; ich < num_ins; ++ich) { + for (; ich < num_ins; ich++) { int och, ich_has_controls = 0; - for (och = 0; och < num_outs; ++och) { - if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), - ich, och, num_outs)) { + for (och = 0; och < num_outs; och++) { + __u8 *c = uac_mixer_unit_bmControls(desc, + state->mixer->protocol); + + if (check_matrix_bitmap(c, ich, och, num_outs)) { ich_has_controls = 1; break; } @@ -1354,13 +1618,13 @@ static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, void *r return 0; } - /* * Processing Unit / Extension Unit */ /* get callback for processing/extension unit */ -static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) +static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) { struct usb_mixer_elem_info *cval = kcontrol->private_data; int err, val; @@ -1378,7 +1642,8 @@ static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, struct snd_ctl_ } /* put callback for processing/extension unit */ -static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) +static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) { struct usb_mixer_elem_info *cval = kcontrol->private_data; int val, oval, err; @@ -1407,7 +1672,6 @@ static struct snd_kcontrol_new mixer_procunit_ctl = { .put = mixer_ctl_procunit_put, }; - /* * predefined data for processing units */ @@ -1498,10 +1762,13 @@ static struct procunit_info extunits[] = { { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, { 0 } }; + /* * build a processing/extension unit */ -static int build_audio_procunit(struct mixer_build *state, int unitid, void *raw_desc, struct procunit_info *list, char *name) +static int build_audio_procunit(struct mixer_build *state, int unitid, + void *raw_desc, struct procunit_info *list, + char *name) { struct uac_processing_unit_descriptor *desc = raw_desc; int num_ins = desc->bNrInPins; @@ -1521,7 +1788,7 @@ static int build_audio_procunit(struct mixer_build *state, int unitid, void *raw if (desc->bLength < 13 || desc->bLength < 13 + num_ins || desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { - snd_printk(KERN_ERR "invalid %s descriptor (id %d)\n", name, unitid); + usb_audio_err(state->chip, "invalid %s descriptor (id %d)\n", name, unitid); return -EINVAL; } @@ -1534,22 +1801,20 @@ static int build_audio_procunit(struct mixer_build *state, int unitid, void *raw for (info = list; info && info->type; info++) if (info->type == type) break; - if (! info || ! info->type) + if (!info || !info->type) info = &default_info; for (valinfo = info->values; valinfo->control; valinfo++) { __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); - if (! (controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) + if (!(controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) continue; map = find_map(state, unitid, valinfo->control); if (check_ignored_ctl(map)) continue; cval = kzalloc(sizeof(*cval), GFP_KERNEL); - if (! cval) { - snd_printk(KERN_ERR "cannot malloc kcontrol\n"); + if (!cval) return -ENOMEM; - } cval->mixer = state->mixer; cval->id = unitid; cval->control = valinfo->control; @@ -1566,7 +1831,8 @@ static int build_audio_procunit(struct mixer_build *state, int unitid, void *raw cval->initialized = 1; } else { if (type == USB_XU_CLOCK_RATE) { - /* E-Mu USB 0404/0202/TrackerPre + /* + * E-Mu USB 0404/0202/TrackerPre/0204 * samplerate control quirk */ cval->min = 0; @@ -1578,77 +1844,81 @@ static int build_audio_procunit(struct mixer_build *state, int unitid, void *raw } kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); - if (! kctl) { - snd_printk(KERN_ERR "cannot malloc kcontrol\n"); + if (!kctl) { kfree(cval); return -ENOMEM; } kctl->private_free = usb_mixer_elem_free; - if (check_mapped_name(map, kctl->id.name, - sizeof(kctl->id.name))) + if (check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name))) { /* nothing */ ; - else if (info->name) + } else if (info->name) { strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); - else { + } else { nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); len = 0; if (nameid) - len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); - if (! len) + len = snd_usb_copy_string_desc(state, nameid, + kctl->id.name, + sizeof(kctl->id.name)); + if (!len) strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); } append_ctl_name(kctl, " "); append_ctl_name(kctl, valinfo->suffix); - snd_printdd(KERN_INFO "[%d] PU [%s] ch = %d, val = %d/%d\n", - cval->id, kctl->id.name, cval->channels, cval->min, cval->max); - if ((err = add_control_to_empty(state, kctl)) < 0) + usb_audio_dbg(state->chip, + "[%d] PU [%s] ch = %d, val = %d/%d\n", + cval->id, kctl->id.name, cval->channels, + cval->min, cval->max); + + err = snd_usb_mixer_add_control(state->mixer, kctl); + if (err < 0) return err; } return 0; } - -static int parse_audio_processing_unit(struct mixer_build *state, int unitid, void *raw_desc) +static int parse_audio_processing_unit(struct mixer_build *state, int unitid, + void *raw_desc) { - return build_audio_procunit(state, unitid, raw_desc, procunits, "Processing Unit"); + return build_audio_procunit(state, unitid, raw_desc, + procunits, "Processing Unit"); } -static int parse_audio_extension_unit(struct mixer_build *state, int unitid, void *raw_desc) +static int parse_audio_extension_unit(struct mixer_build *state, int unitid, + void *raw_desc) { - /* Note that we parse extension units with processing unit descriptors. - * That's ok as the layout is the same */ - return build_audio_procunit(state, unitid, raw_desc, extunits, "Extension Unit"); + /* + * Note that we parse extension units with processing unit descriptors. + * That's ok as the layout is the same. + */ + return build_audio_procunit(state, unitid, raw_desc, + extunits, "Extension Unit"); } - /* * Selector Unit */ -/* info callback for selector unit +/* + * info callback for selector unit * use an enumerator type for routing */ -static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) +static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) { struct usb_mixer_elem_info *cval = kcontrol->private_data; - char **itemlist = (char **)kcontrol->private_value; + const char **itemlist = (const char **)kcontrol->private_value; if (snd_BUG_ON(!itemlist)) return -EINVAL; - uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; - uinfo->count = 1; - uinfo->value.enumerated.items = cval->max; - if (uinfo->value.enumerated.item >= cval->max) - uinfo->value.enumerated.item = cval->max - 1; - strlcpy(uinfo->value.enumerated.name, itemlist[uinfo->value.enumerated.item], - sizeof(uinfo->value.enumerated.name)); - return 0; + return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist); } /* get callback for selector unit */ -static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) +static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) { struct usb_mixer_elem_info *cval = kcontrol->private_data; int val, err; @@ -1667,7 +1937,8 @@ static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, struct snd_ctl_ } /* put callback for selector unit */ -static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) +static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) { struct usb_mixer_elem_info *cval = kcontrol->private_data; int val, oval, err; @@ -1696,8 +1967,8 @@ static struct snd_kcontrol_new mixer_selectunit_ctl = { .put = mixer_ctl_selector_put, }; - -/* private free callback. +/* + * private free callback. * free both private_data and private_value */ static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) @@ -1722,7 +1993,8 @@ static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) /* * parse a selector unit */ -static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void *raw_desc) +static int parse_audio_selector_unit(struct mixer_build *state, int unitid, + void *raw_desc) { struct uac_selector_unit_descriptor *desc = raw_desc; unsigned int i, nameid, len; @@ -1733,7 +2005,8 @@ static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void char **namelist; if (!desc->bNrInPins || desc->bLength < 5 + desc->bNrInPins) { - snd_printk(KERN_ERR "invalid SELECTOR UNIT descriptor %d\n", unitid); + usb_audio_err(state->chip, + "invalid SELECTOR UNIT descriptor %d\n", unitid); return -EINVAL; } @@ -1750,10 +2023,8 @@ static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void return 0; cval = kzalloc(sizeof(*cval), GFP_KERNEL); - if (! cval) { - snd_printk(KERN_ERR "cannot malloc kcontrol\n"); + if (!cval) return -ENOMEM; - } cval->mixer = state->mixer; cval->id = unitid; cval->val_type = USB_MIXER_U8; @@ -1769,8 +2040,7 @@ static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void cval->control = 0; namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL); - if (! namelist) { - snd_printk(KERN_ERR "cannot malloc\n"); + if (!namelist) { kfree(cval); return -ENOMEM; } @@ -1779,8 +2049,7 @@ static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void struct usb_audio_term iterm; len = 0; namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); - if (! namelist[i]) { - snd_printk(KERN_ERR "cannot malloc\n"); + if (!namelist[i]) { while (i--) kfree(namelist[i]); kfree(namelist); @@ -1792,12 +2061,12 @@ static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); if (! len) - sprintf(namelist[i], "Input %d", i); + sprintf(namelist[i], "Input %u", i); } kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); if (! kctl) { - snd_printk(KERN_ERR "cannot malloc kcontrol\n"); + usb_audio_err(state->chip, "cannot malloc kcontrol\n"); kfree(namelist); kfree(cval); return -ENOMEM; @@ -1810,11 +2079,12 @@ static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void if (len) ; else if (nameid) - snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); + snd_usb_copy_string_desc(state, nameid, kctl->id.name, + sizeof(kctl->id.name)); else { len = get_term_name(state, &state->oterm, kctl->id.name, sizeof(kctl->id.name), 0); - if (! len) + if (!len) strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) @@ -1825,15 +2095,14 @@ static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void append_ctl_name(kctl, " Playback Source"); } - snd_printdd(KERN_INFO "[%d] SU [%s] items = %d\n", + usb_audio_dbg(state->chip, "[%d] SU [%s] items = %d\n", cval->id, kctl->id.name, desc->bNrInPins); - if ((err = add_control_to_empty(state, kctl)) < 0) + if ((err = snd_usb_mixer_add_control(state->mixer, kctl)) < 0) return err; return 0; } - /* * parse an audio unit recursively */ @@ -1847,7 +2116,7 @@ static int parse_audio_unit(struct mixer_build *state, int unitid) p1 = find_audio_control_unit(state, unitid); if (!p1) { - snd_printk(KERN_ERR "usbaudio: unit %d not found!\n", unitid); + usb_audio_err(state->chip, "unit %d not found!\n", unitid); return -EINVAL; } @@ -1874,8 +2143,11 @@ static int parse_audio_unit(struct mixer_build *state, int unitid) return parse_audio_extension_unit(state, unitid, p1); else /* UAC_VERSION_2 */ return parse_audio_processing_unit(state, unitid, p1); + case UAC2_EXTENSION_UNIT_V2: + return parse_audio_extension_unit(state, unitid, p1); default: - snd_printk(KERN_ERR "usbaudio: unit %u: unexpected type 0x%02x\n", unitid, p1[2]); + usb_audio_err(state->chip, + "unit %u: unexpected type 0x%02x\n", unitid, p1[2]); return -EINVAL; } } @@ -1909,15 +2181,13 @@ static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) struct mixer_build state; int err; const struct usbmix_ctl_map *map; - struct usb_host_interface *hostif; void *p; - hostif = mixer->chip->ctrl_intf; memset(&state, 0, sizeof(state)); state.chip = mixer->chip; state.mixer = mixer; - state.buffer = hostif->extra; - state.buflen = hostif->extralen; + state.buffer = mixer->hostif->extra; + state.buflen = mixer->hostif->extralen; /* check the mapping table */ for (map = usbmix_ctl_maps; map->id; map++) { @@ -1930,35 +2200,42 @@ static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) } p = NULL; - while ((p = snd_usb_find_csint_desc(hostif->extra, hostif->extralen, p, UAC_OUTPUT_TERMINAL)) != NULL) { + while ((p = snd_usb_find_csint_desc(mixer->hostif->extra, + mixer->hostif->extralen, + p, UAC_OUTPUT_TERMINAL)) != NULL) { if (mixer->protocol == UAC_VERSION_1) { struct uac1_output_terminal_descriptor *desc = p; if (desc->bLength < sizeof(*desc)) continue; /* invalid descriptor? */ - set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ + /* mark terminal ID as visited */ + set_bit(desc->bTerminalID, state.unitbitmap); 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) + if (err < 0 && err != -EINVAL) return err; } else { /* UAC_VERSION_2 */ struct uac2_output_terminal_descriptor *desc = p; if (desc->bLength < sizeof(*desc)) continue; /* invalid descriptor? */ - set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ + /* mark terminal ID as visited */ + set_bit(desc->bTerminalID, state.unitbitmap); 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) + if (err < 0 && err != -EINVAL) return err; - /* for UAC2, use the same approach to also add the clock selectors */ + /* + * For UAC2, use the same approach to also add the + * clock selectors + */ err = parse_audio_unit(&state, desc->bCSourceID); - if (err < 0) + if (err < 0 && err != -EINVAL) return err; } } @@ -2024,8 +2301,9 @@ static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, __u8 channel = value & 0xff; if (channel >= MAX_CHANNELS) { - snd_printk(KERN_DEBUG "%s(): bogus channel number %d\n", - __func__, channel); + usb_audio_dbg(mixer->chip, + "%s(): bogus channel number %d\n", + __func__, channel); return; } @@ -2054,8 +2332,9 @@ static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, break; default: - snd_printk(KERN_DEBUG "unknown attribute %d in interrupt\n", - attribute); + usb_audio_dbg(mixer->chip, + "unknown attribute %d in interrupt\n", + attribute); break; } /* switch */ } @@ -2065,8 +2344,9 @@ static void snd_usb_mixer_interrupt(struct urb *urb) { struct usb_mixer_interface *mixer = urb->context; int len = urb->actual_length; + int ustatus = urb->status; - if (urb->status != 0) + if (ustatus != 0) goto requeue; if (mixer->protocol == UAC_VERSION_1) { @@ -2075,7 +2355,7 @@ static void snd_usb_mixer_interrupt(struct urb *urb) for (status = urb->transfer_buffer; len >= sizeof(*status); len -= sizeof(*status), status++) { - snd_printd(KERN_DEBUG "status interrupt: %02x %02x\n", + dev_dbg(&urb->dev->dev, "status interrupt: %02x %02x\n", status->bStatusType, status->bOriginator); @@ -2107,7 +2387,9 @@ static void snd_usb_mixer_interrupt(struct urb *urb) } requeue: - if (urb->status != -ENOENT && urb->status != -ECONNRESET) { + if (ustatus != -ENOENT && + ustatus != -ECONNRESET && + ustatus != -ESHUTDOWN) { urb->dev = mixer->chip->dev; usb_submit_urb(urb, GFP_ATOMIC); } @@ -2116,17 +2398,15 @@ requeue: /* create the handler for the optional status interrupt endpoint */ static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) { - struct usb_host_interface *hostif; struct usb_endpoint_descriptor *ep; void *transfer_buffer; int buffer_length; unsigned int epnum; - hostif = mixer->chip->ctrl_intf; /* we need one interrupt input endpoint */ - if (get_iface_desc(hostif)->bNumEndpoints < 1) + if (get_iface_desc(mixer->hostif)->bNumEndpoints < 1) return 0; - ep = get_endpoint(hostif, 0); + ep = get_endpoint(mixer->hostif, 0); if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) return 0; @@ -2156,7 +2436,6 @@ int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, }; struct usb_mixer_interface *mixer; struct snd_info_entry *entry; - struct usb_host_interface *host_iface; int err; strcpy(chip->card->mixername, "USB Mixer"); @@ -2173,8 +2452,8 @@ 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]; - switch (get_iface_desc(host_iface)->bInterfaceProtocol) { + mixer->hostif = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; + switch (get_iface_desc(mixer->hostif)->bInterfaceProtocol) { case UAC_VERSION_1: default: mixer->protocol = UAC_VERSION_1; @@ -2190,7 +2469,7 @@ int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, snd_usb_mixer_apply_create_quirk(mixer); - err = snd_device_new(chip->card, SNDRV_DEV_LOWLEVEL, mixer, &dev_ops); + err = snd_device_new(chip->card, SNDRV_DEV_CODEC, mixer, &dev_ops); if (err < 0) goto _error; @@ -2214,3 +2493,82 @@ void snd_usb_mixer_disconnect(struct list_head *p) usb_kill_urb(mixer->urb); usb_kill_urb(mixer->rc_urb); } + +#ifdef CONFIG_PM +/* stop any bus activity of a mixer */ +static void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer) +{ + usb_kill_urb(mixer->urb); + usb_kill_urb(mixer->rc_urb); +} + +static int snd_usb_mixer_activate(struct usb_mixer_interface *mixer) +{ + int err; + + if (mixer->urb) { + err = usb_submit_urb(mixer->urb, GFP_NOIO); + if (err < 0) + return err; + } + + return 0; +} + +int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer) +{ + snd_usb_mixer_inactivate(mixer); + return 0; +} + +static int restore_mixer_value(struct usb_mixer_elem_info *cval) +{ + int c, err, idx; + + if (cval->cmask) { + idx = 0; + for (c = 0; c < MAX_CHANNELS; c++) { + if (!(cval->cmask & (1 << c))) + continue; + if (cval->cached & (1 << c)) { + err = set_cur_mix_value(cval, c + 1, idx, + cval->cache_val[idx]); + if (err < 0) + return err; + } + idx++; + } + } else { + /* master */ + if (cval->cached) { + err = set_cur_mix_value(cval, 0, 0, *cval->cache_val); + if (err < 0) + return err; + } + } + + return 0; +} + +int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume) +{ + struct usb_mixer_elem_info *cval; + int id, err; + + /* FIXME: any mixer quirks? */ + + if (reset_resume) { + /* restore cached mixer values */ + for (id = 0; id < MAX_ID_ELEMS; id++) { + for (cval = mixer->id_elems[id]; cval; + cval = cval->next_id_elem) { + err = restore_mixer_value(cval); + if (err < 0) + return err; + } + } + } + + return snd_usb_mixer_activate(mixer); +} +#endif |