diff options
Diffstat (limited to 'sound/usb/mixer.c')
| -rw-r--r-- | sound/usb/mixer.c | 623 |
1 files changed, 389 insertions, 234 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index 95558ef4a7a..0b728d886f0 100644 --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -162,7 +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) @@ -174,7 +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; @@ -194,7 +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; @@ -253,7 +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; @@ -267,7 +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; @@ -281,7 +283,8 @@ 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]; @@ -292,6 +295,7 @@ static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, int v err = snd_usb_autoresume(cval->mixer->chip); if (err < 0) return -EIO; + down_read(&chip->shutdown_rwsem); while (timeout-- > 0) { if (chip->shutdown) @@ -305,8 +309,9 @@ static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, int v goto out; } } - snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", - request, validx, idx, cval->val_type); + 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: @@ -315,10 +320,11 @@ static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, int v 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 idx = 0, ret, size; __u8 bRequest; @@ -338,9 +344,9 @@ static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int v goto error; down_read(&chip->shutdown_rwsem); - if (chip->shutdown) + if (chip->shutdown) { ret = -ENODEV; - else { + } 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, @@ -351,8 +357,9 @@ static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int v if (ret < 0) { error: - snd_printk(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", - request, validx, idx, cval->val_type); + 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; } @@ -380,7 +387,8 @@ error: 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; @@ -389,7 +397,8 @@ static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int vali 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); } @@ -398,7 +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, @@ -413,8 +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; @@ -422,7 +434,6 @@ static int get_cur_mix_value(struct usb_mixer_elem_info *cval, return 0; } - /* * set a mixer value */ @@ -444,7 +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; } @@ -470,8 +481,8 @@ int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, goto out; } } - snd_printdd(KERN_ERR "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]); + 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: @@ -480,7 +491,8 @@ int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, 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); } @@ -494,13 +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; @@ -537,13 +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. @@ -560,7 +574,8 @@ int snd_usb_mixer_add_control(struct usb_mixer_interface *mixer, while (snd_ctl_find_id(mixer->chip->card, &kctl->id)) kctl->id.index++; if ((err = snd_ctl_add(mixer->chip->card, kctl)) < 0) { - snd_printd(KERN_ERR "cannot add control (err = %d)\n", err); + usb_audio_dbg(mixer->chip, "cannot add control (err = %d)\n", + err); return err; } cval->elem_id = &kctl->id; @@ -569,7 +584,6 @@ int snd_usb_mixer_add_control(struct usb_mixer_interface *mixer, return 0; } - /* * get a terminal name string */ @@ -623,7 +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) { @@ -631,13 +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); } @@ -645,29 +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; @@ -762,7 +787,6 @@ static int check_input_term(struct mixer_build *state, int id, struct usb_audio_ return -ENODEV; } - /* * Feature Unit */ @@ -790,7 +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) { @@ -798,7 +821,6 @@ static void usb_mixer_elem_free(struct snd_kcontrol *kctl) kctl->private_data = NULL; } - /* * interface to ALSA control for feature/mixer units */ @@ -807,7 +829,8 @@ static void usb_mixer_elem_free(struct snd_kcontrol *kctl) static void volume_control_quirks(struct usb_mixer_elem_info *cval, struct snd_kcontrol *kctl) { - switch (cval->mixer->chip->usb_id) { + 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) { @@ -839,8 +862,8 @@ static void volume_control_quirks(struct usb_mixer_elem_info *cval, 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) { - snd_printk(KERN_INFO - "usb-audio: set quirk for FTU Effect Duration\n"); + usb_audio_info(chip, + "set quirk for FTU Effect Duration\n"); cval->min = 0x0000; cval->max = 0x7f00; cval->res = 0x0100; @@ -848,8 +871,8 @@ static void volume_control_quirks(struct usb_mixer_elem_info *cval, } if (strcmp(kctl->id.name, "Effect Volume") == 0 || strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { - snd_printk(KERN_INFO - "usb-audio: set quirks for FTU Effect Feedback/Volume\n"); + usb_audio_info(chip, + "set quirks for FTU Effect Feedback/Volume\n"); cval->min = 0x00; cval->max = 0x7f; break; @@ -867,7 +890,7 @@ static void volume_control_quirks(struct usb_mixer_elem_info *cval, */ if (!strcmp(kctl->id.name, "PCM Playback Volume") && cval->min == -15616) { - snd_printk(KERN_INFO + usb_audio_info(chip, "set volume quirk for UDA1321/N101 chip\n"); cval->max = -256; } @@ -875,7 +898,7 @@ static void volume_control_quirks(struct usb_mixer_elem_info *cval, case USB_ID(0x046d, 0x09a4): if (!strcmp(kctl->id.name, "Mic Capture Volume")) { - snd_printk(KERN_INFO + usb_audio_info(chip, "set volume quirk for QuickCam E3500\n"); cval->min = 6080; cval->max = 8768; @@ -883,6 +906,7 @@ static void volume_control_quirks(struct usb_mixer_elem_info *cval, } 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 */ @@ -895,12 +919,11 @@ static void volume_control_quirks(struct usb_mixer_elem_info *cval, * Proboly there is some logitech magic behind this number --fishor */ if (!strcmp(kctl->id.name, "Mic Capture Volume")) { - snd_printk(KERN_INFO + usb_audio_info(chip, "set resolution quirk: cval->res = 384\n"); cval->res = 384; } break; - } } @@ -931,22 +954,28 @@ static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval, } 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) @@ -1010,7 +1039,8 @@ static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval, #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; @@ -1044,7 +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; @@ -1075,7 +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; @@ -1129,36 +1161,39 @@ 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 */ +/* + * 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. */ +/* + * 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 = 0; + bool found = false; if (strcmp("Speaker", kctl->id.name)) return; for (s = names_to_check; *s; s++) if (strstr(card->shortname, *s)) { - found = 1; + found = true; break; } @@ -1194,10 +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; @@ -1215,16 +1248,18 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc, cval->ch_readonly = readonly_mask; } - /* 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; } @@ -1232,48 +1267,53 @@ 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); } if (!mapped_name) check_no_speaker_on_headset(kctl, state->mixer->chip->card); - /* determine the stream direction: + /* + * 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"); break; default: - if (! len) + if (!len) strlcpy(kctl->id.name, audio_feature_info[control-1].name, sizeof(kctl->id.name)); break; @@ -1293,33 +1333,35 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc, } range = (cval->max - cval->min) / cval->res; - /* Are there devices with volume range more than 255? I use a bit more + /* + * 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) { - snd_printk(KERN_WARNING "usb_audio: Warning! Unlikely big " - "volume range (=%u), cval->res is probably wrong.", - range); - snd_printk(KERN_WARNING "usb_audio: [%d] FU [%s] ch = %d, " - "val = %d/%d/%d", cval->id, - kctl->id.name, cval->channels, - cval->min, cval->max, cval->res); - } - - 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); + 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 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; @@ -1331,16 +1373,17 @@ 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) { - snd_printdd(KERN_ERR "usbaudio: unit %u: " - "invalid bControlSize == 0\n", unitid); + 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) { - snd_printk(KERN_ERR "usbaudio: unit %u: " - "invalid UAC_FEATURE_UNIT descriptor\n", - unitid); + usb_audio_err(state->chip, + "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", + unitid); return -EINVAL; } } else { @@ -1349,9 +1392,9 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void channels = (hdr->bLength - 6) / 4 - 1; bmaControls = ftr->bmaControls; if (hdr->bLength < 6 + csize) { - snd_printk(KERN_ERR "usbaudio: unit %u: " - "invalid UAC_FEATURE_UNIT descriptor\n", - unitid); + usb_audio_err(state->chip, + "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", + unitid); return -EINVAL; } } @@ -1369,14 +1412,14 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void /* 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): - snd_printk(KERN_INFO - "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n"); + usb_audio_info(state->chip, + "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n"); /* disable non-functional volume control */ channels = 0; break; @@ -1392,15 +1435,25 @@ 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 < ARRAY_SIZE(audio_feature_info); i++) { @@ -1408,7 +1461,10 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void 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)) @@ -1416,12 +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)); @@ -1431,7 +1497,6 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void return 0; } - /* * Mixer Unit */ @@ -1442,7 +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, @@ -1459,7 +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; @@ -1467,7 +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++; } @@ -1477,43 +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); 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; } @@ -1527,12 +1598,14 @@ static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, void *r 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; } @@ -1545,13 +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; @@ -1569,7 +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; @@ -1598,7 +1672,6 @@ static struct snd_kcontrol_new mixer_procunit_ctl = { .put = mixer_ctl_procunit_put, }; - /* * predefined data for processing units */ @@ -1689,10 +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; @@ -1712,7 +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; } @@ -1725,22 +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; @@ -1757,7 +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/0204 + /* + * E-Mu USB 0404/0202/TrackerPre/0204 * samplerate control quirk */ cval->min = 0; @@ -1769,59 +1844,69 @@ 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 = snd_usb_mixer_add_control(state->mixer, 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; const char **itemlist = (const char **)kcontrol->private_value; @@ -1832,7 +1917,8 @@ static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl } /* 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; @@ -1851,7 +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; @@ -1880,8 +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) @@ -1906,7 +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; @@ -1917,7 +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; } @@ -1934,10 +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; @@ -1953,8 +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; } @@ -1963,8 +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); @@ -1976,12 +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; @@ -1994,11 +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) @@ -2009,7 +2095,7 @@ 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 = snd_usb_mixer_add_control(state->mixer, kctl)) < 0) return err; @@ -2017,7 +2103,6 @@ static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void return 0; } - /* * parse an audio unit recursively */ @@ -2031,7 +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; } @@ -2061,7 +2146,8 @@ static int parse_audio_unit(struct mixer_build *state, int unitid) 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; } } @@ -2114,14 +2200,16 @@ static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) } p = NULL; - while ((p = snd_usb_find_csint_desc(mixer->hostif->extra, mixer->hostif->extralen, + 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; @@ -2133,7 +2221,8 @@ static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) 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; @@ -2141,7 +2230,10 @@ static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) 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 && err != -EINVAL) return err; @@ -2209,8 +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; } @@ -2239,8 +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 */ } @@ -2261,7 +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); @@ -2293,32 +2387,14 @@ static void snd_usb_mixer_interrupt(struct urb *urb) } requeue: - if (ustatus != -ENOENT && ustatus != -ECONNRESET && ustatus != -ESHUTDOWN) { + if (ustatus != -ENOENT && + ustatus != -ECONNRESET && + ustatus != -ESHUTDOWN) { urb->dev = mixer->chip->dev; usb_submit_urb(urb, GFP_ATOMIC); } } -/* stop any bus activity of a mixer */ -void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer) -{ - usb_kill_urb(mixer->urb); - usb_kill_urb(mixer->rc_urb); -} - -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; -} - /* create the handler for the optional status interrupt endpoint */ static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) { @@ -2393,7 +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; @@ -2417,3 +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 |