Add mixer quirk for Tascam US-16x08 usb interface. Even that this an usb compliant device, the input channels and DSP functions (EQ/Compressor) arn't accessible by default.

In v3 I did changed the following: exchange MUA to keep code style, remove all globals, all declaration static (where possible), use standard snd_ctl_boolean_mono_info() when possible, NULL check for all kmalloc(), Remove redundant code, add comments where needed, fix macro arguments, replace uint8_t with u8/s8, remove all typedefs (if possible), add resume callback.

Signed-off-by: Detlef Urban onkel@paraair.de --- sound/usb/Makefile | 1 + sound/usb/mixer_quirks.c | 5 + sound/usb/mixer_us16x08.c | 1772 +++++++++++++++++++++++++++++++++++++++++++++ sound/usb/mixer_us16x08.h | 142 ++++ 4 files changed, 1920 insertions(+) create mode 100644 sound/usb/mixer_us16x08.c create mode 100644 sound/usb/mixer_us16x08.h

diff --git a/sound/usb/Makefile b/sound/usb/Makefile index 2d2d122..42cb33b 100644 --- a/sound/usb/Makefile +++ b/sound/usb/Makefile @@ -10,6 +10,7 @@ snd-usb-audio-objs := card.o \ mixer.o \ mixer_quirks.o \ mixer_scarlett.o \ + mixer_us16x08.o \ pcm.o \ proc.o \ quirks.o \ diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c index 04991b0..4fa0053 100644 --- a/sound/usb/mixer_quirks.c +++ b/sound/usb/mixer_quirks.c @@ -43,6 +43,7 @@ #include "mixer.h" #include "mixer_quirks.h" #include "mixer_scarlett.h" +#include "mixer_us16x08.h" #include "helper.h"

extern struct snd_kcontrol_new *snd_usb_feature_unit_ctl; @@ -1729,6 +1730,10 @@ int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer) return err;

switch (mixer->chip->usb_id) { + /* Tascam US-16x08 */ + case USB_ID(0x0644, 0x8047): + err = snd_us16x08_controls_create(mixer); + break; case USB_ID(0x041e, 0x3020): case USB_ID(0x041e, 0x3040): case USB_ID(0x041e, 0x3042): diff --git a/sound/usb/mixer_us16x08.c b/sound/usb/mixer_us16x08.c new file mode 100644 index 0000000..54c6928 --- /dev/null +++ b/sound/usb/mixer_us16x08.c @@ -0,0 +1,1772 @@ +/* + * Tascam US-16x08 ALSA driver + * + * Copyright (c) 2016 by Detlef Urban (onkel@paraair.de) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/slab.h> +#include <linux/usb.h> +#include <linux/usb/audio-v2.h> +#include "linux/kthread.h" + +#include <sound/core.h> +#include <sound/control.h> +#include <asm-generic/errno-base.h> + +#include "usbaudio.h" +#include "mixer.h" +#include "helper.h" + +#include "mixer_us16x08.h" + +/* USB control message templates */ +static char route_msg[] = { + 0x61, + 0x02, + 0x03, /* input from master (0x02) or input from computer bus (0x03) */ + 0x62, + 0x02, + 0x01, /* input index (0x01/0x02 eq. left/right) or bus (0x01-0x08) */ + 0x41, + 0x01, + 0x61, + 0x02, + 0x01, + 0x62, + 0x02, + 0x01, /* output index (0x01-0x08) */ + 0x42, + 0x01, + 0x43, + 0x01, + 0x00, + 0x00 +}; + +static char mix_init_msg1[] = { + 0x71, 0x01, 0x00, 0x00 +}; + +static char mix_init_msg2[] = { + 0x62, 0x02, 0x00, 0x61, 0x02, 0x04, 0xb1, 0x01, 0x00, 0x00 +}; + +static char mix_msg_in[] = { + /* default message head, equal to all mixers */ + 0x61, 0x02, 0x04, 0x62, 0x02, 0x01, + 0x81, /* 0x06: Controller ID */ + 0x02, /* 0x07: */ + 0x00, /* 0x08: Value of common mixer */ + 0x00, + 0x00 +}; + +static char mix_msg_out[] = { + /* default message head, equal to all mixers */ + 0x61, 0x02, 0x02, 0x62, 0x02, 0x01, + 0x81, /* 0x06: Controller ID */ + 0x02, /* 0x07: */ + 0x00, /* 0x08: Value of common mixer */ + 0x00, + 0x00 +}; + +static char bypass_msg_out[] = { + 0x45, + 0x02, + 0x01, /* on/off flag */ + 0x00, + 0x00 +}; + +static char bus_msg_out[] = { + 0x44, + 0x02, + 0x01, /* on/off flag */ + 0x00, + 0x00 +}; + +static char comp_msg[] = { + /* default message head, equal to all mixers */ + 0x61, 0x02, 0x04, 0x62, 0x02, 0x01, + 0x91, + 0x02, + 0xf0, /* 0x08: Threshold db (8) (e0 ... 00) (+-0dB -- -32dB) x-32 */ + 0x92, + 0x02, + 0x0a, /* 0x0b: Ratio (0a,0b,0d,0f,11,14,19,1e,23,28,32,3c,50,a0,ff) */ + 0x93, + 0x02, + 0x02, /* 0x0e: Attack (0x02 ... 0xc0) (2ms ... 200ms) */ + 0x94, + 0x02, + 0x01, /* 0x11: Release (0x01 ... 0x64) (10ms ... 1000ms) x*10 */ + 0x95, + 0x02, + 0x03, /* 0x14: gain (0 ... 20) (0dB .. 20dB) */ + 0x96, + 0x02, + 0x01, + 0x97, + 0x02, + 0x01, /* 0x1a: main Comp switch (0 ... 1) (off ... on)) */ + 0x00, + 0x00 +}; + +static char eqs_msq[] = { + /* default message head, equal to all mixers */ + 0x61, 0x02, 0x04, 0x62, 0x02, 0x01, + 0x51, /* 0x06: Controller ID */ + 0x02, + 0x04, /* 0x08: EQ set num (0x01..0x04) (LOW, LOWMID, HIGHMID, HIGH)) */ + 0x52, + 0x02, + 0x0c, /* 0x0b: value dB (0 ... 12) (-12db .. +12db) x-6 */ + 0x53, + 0x02, + 0x0f, /* 0x0e: value freq (32-47) (1.7kHz..18kHz) */ + 0x54, + 0x02, + 0x02, /* 0x11: band width (0-6) (Q16-Q0.25) 2^x/4 (EQ xxMID only) */ + 0x55, + 0x02, + 0x01, /* 0x14: main EQ switch (0 ... 1) (off ... on)) */ + 0x00, + 0x00 +}; + +/* compressor ratio map */ +static char ratio_map[] = { + 0x0a, 0x0b, 0x0d, 0x0f, 0x11, 0x14, 0x19, 0x1e, + 0x23, 0x28, 0x32, 0x3c, 0x50, 0xa0, 0xff +}; + +static int snd_us16x08_recv_urb(struct snd_usb_audio *chip, + unsigned char *buf, int size) +{ + + mutex_lock(&chip->mutex); + snd_usb_ctl_msg(chip->dev, + usb_rcvctrlpipe(chip->dev, 0), + SND_US16X08_URB_METER_REQUEST, + SND_US16X08_URB_METER_REQUESTTYPE, 0, 0, buf, size); + mutex_unlock(&chip->mutex); + return 0; +} + +/* wrapper function to send prepared URB buffer to usb device. Return -1 + * if something went wrong + */ +static int snd_us16x08_send_urb(struct snd_usb_audio *chip, char *buf, int size) +{ + int count = -1; + + if (chip) { + count = snd_usb_ctl_msg(chip->dev, + usb_sndctrlpipe(chip->dev, 0), + SND_US16X08_URB_REQUEST, + SND_US16X08_URB_REQUESTTYPE, + 0, 0, buf, size); + } + + return (count == size) ? 0 : count; +} + +static int snd_us16x08_route_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->count = 1; + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->value.integer.max = SND_US16X08_KCMAX(kcontrol); + uinfo->value.integer.min = SND_US16X08_KCMIN(kcontrol); + uinfo->value.integer.step = SND_US16X08_KCSTEP(kcontrol); + return 0; +} + +static int snd_us16x08_route_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_us16x08_common *store = + (struct snd_us16x08_common *) elem->private_data; + int index = ucontrol->id.index; + + /* route has no bias */ + ucontrol->value.integer.value[0] = store->value[index]; + + return 0; +} + +static int snd_us16x08_route_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_usb_audio *chip = elem->head.mixer->chip; + struct snd_us16x08_common *store = + (struct snd_us16x08_common *) elem->private_data; + int index = ucontrol->id.index; + char buf[sizeof(route_msg)]; + int val, val_org, err = 0; + + /* prepare the message buffer from template */ + memcpy(buf, route_msg, sizeof(route_msg)); + + /* get the new value (no bias for routes) */ + val = ucontrol->value.integer.value[0]; + if (val < 2) { + /* input comes from a master channel */ + val_org = val; + buf[2] = 0x02; + } else { + /* input comes from a computer channel */ + buf[2] = 0x03; + val_org = val - 2; + } + + /* place new route selection in URB message */ + buf[5] = (unsigned char) (val_org & 0x0f) + 1; + /* place route selector in URB message */ + buf[13] = index + 1; + + err = snd_us16x08_send_urb(chip, buf, sizeof(route_msg)); + + if (err == 0) { + store->value[index] = val; + elem->cached &= 1 << index; + elem->cache_val[index] = val; + } + + return err == 0 ? 1 : 0; +} + +static int snd_us16x08_master_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->count = 1; + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->value.integer.max = SND_US16X08_KCMAX(kcontrol); + uinfo->value.integer.min = SND_US16X08_KCMIN(kcontrol); + uinfo->value.integer.step = SND_US16X08_KCSTEP(kcontrol); + return 0; +} + +static int snd_us16x08_master_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_us16x08_common *store = + (struct snd_us16x08_common *) elem->private_data; + int index = ucontrol->id.index; + + ucontrol->value.integer.value[0] = + store->value[index]; + + return 0; +} + +static int snd_us16x08_master_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_usb_audio *chip = elem->head.mixer->chip; + struct snd_us16x08_common *store = + (struct snd_us16x08_common *) elem->private_data; + char buf[sizeof(mix_msg_out)]; + int val, err = 0; + int index = ucontrol->id.index; + + /* prepare the message buffer from template */ + memcpy(buf, mix_msg_out, sizeof(mix_msg_out)); + + /* new control value incl. bias*/ + val = ucontrol->value.integer.value[0]; + + buf[8] = val - SND_US16X08_KCBIAS(kcontrol); + buf[6] = elem->head.id; + + /* place channel selector in URB message */ + buf[5] = index + 1; + err = snd_us16x08_send_urb(chip, buf, sizeof(mix_msg_out)); + + if (err == 0) { + store->value[index] = val; + elem->cached &= 1 << index; + elem->cache_val[index] = val; + } + + return err == 0 ? 1 : 0; +} + +static int snd_us16x08_bus_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_usb_audio *chip = elem->head.mixer->chip; + struct snd_us16x08_bus_store *store = + (struct snd_us16x08_bus_store *) elem->private_data; + + char buf[sizeof(mix_msg_out)]; + int val, err = 0; + + val = ucontrol->value.integer.value[0]; + + /* prepare the message buffer from template */ + switch (elem->head.id) { + case SND_US16X08_ID_BYPASS: + memcpy(buf, bypass_msg_out, sizeof(bypass_msg_out)); + buf[2] = val; + err = snd_us16x08_send_urb(chip, buf, sizeof(bypass_msg_out)); + store->bypass[0] = val; + break; + case SND_US16X08_ID_BUSS_OUT: + memcpy(buf, bus_msg_out, sizeof(bus_msg_out)); + buf[2] = val; + err = snd_us16x08_send_urb(chip, buf, sizeof(bus_msg_out)); + store->bus_out[0] = val; + break; + case SND_US16X08_ID_MUTE: + memcpy(buf, mix_msg_out, sizeof(mix_msg_out)); + buf[8] = val; + buf[6] = elem->head.id; + buf[5] = 1; + err = snd_us16x08_send_urb(chip, buf, sizeof(mix_msg_out)); + store->master_mute[0] = val; + break; + } + + if (err == 0) { + elem->cached &= 1; + elem->cache_val[0] = val; + } + + return err == 0 ? 1 : 0; +} + +static int snd_us16x08_bus_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_us16x08_bus_store *store = + (struct snd_us16x08_bus_store *) elem->private_data; + + switch (elem->head.id) { + case SND_US16X08_ID_BUSS_OUT: + ucontrol->value.integer.value[0] = store->bus_out[0]; + break; + case SND_US16X08_ID_BYPASS: + ucontrol->value.integer.value[0] = store->bypass[0]; + break; + case SND_US16X08_ID_MUTE: + ucontrol->value.integer.value[0] = store->master_mute[0]; + break; + } + + return 0; +} + +/* gets a current mixer value from common store */ +static int snd_us16x08_channel_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_us16x08_channel_store *store = + (struct snd_us16x08_channel_store *) elem->private_data; + int index = ucontrol->id.index; + + switch (elem->head.id) { + case SND_US16X08_ID_MUTE: + ucontrol->value.integer.value[0] = store->mute[index]; + break; + case SND_US16X08_ID_PAN: + ucontrol->value.integer.value[0] = store->pan[index]; + break; + case SND_US16X08_ID_FADER: + ucontrol->value.integer.value[0] = store->gain[index]; + break; + case SND_US16X08_ID_PHASE: + ucontrol->value.integer.value[0] = store->phase[index]; + break; + } + + return 0; +} + +static int snd_us16x08_channel_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_usb_audio *chip = elem->head.mixer->chip; + struct snd_us16x08_channel_store *store = + (struct snd_us16x08_channel_store *) elem->private_data; + char buf[sizeof(mix_msg_in)]; + int val, err; + int index = ucontrol->id.index; + + /* prepare URB message from template */ + memcpy(buf, mix_msg_in, sizeof(mix_msg_in)); + + val = ucontrol->value.integer.value[0]; + + /* add the bias to the new value */ + buf[8] = val - SND_US16X08_KCBIAS(kcontrol); + buf[6] = elem->head.id; + buf[5] = index + 1; + + err = snd_us16x08_send_urb(chip, buf, sizeof(mix_msg_in)); + + if (err == 0) { + switch (elem->head.id) { + case SND_US16X08_ID_MUTE: + store->mute[index] = val; + break; + case SND_US16X08_ID_PAN: + store->pan[index] = val; + break; + case SND_US16X08_ID_FADER: + store->gain[index] = val; + break; + case SND_US16X08_ID_PHASE: + store->phase[index] = val; + break; + } + elem->cached &= 1 << index; + elem->cache_val[index] = val; + } + + return err == 0 ? 1 : 0; +} + +static int snd_us16x08_mix_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->count = 1; + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->value.integer.max = SND_US16X08_KCMAX(kcontrol); + uinfo->value.integer.min = SND_US16X08_KCMIN(kcontrol); + uinfo->value.integer.step = SND_US16X08_KCSTEP(kcontrol); + return 0; +} + +static int snd_us16x08_comp_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int val = 0; + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_us16x08_comp_store *store = + ((struct snd_us16x08_comp_store *) elem->private_data); + int index = ucontrol->id.index; + + switch (elem->head.id) { + case SND_US16X08_ID_COMP_THRESHOLD: + val = store->valThreshold[index]; + break; + case SND_US16X08_ID_COMP_RATIO: + val = store->valRatio[index]; + break; + case SND_US16X08_ID_COMP_ATTACK: + val = store->valAttack[index]; + break; + case SND_US16X08_ID_COMP_RELEASE: + val = store->valRelease[index]; + break; + case SND_US16X08_ID_COMP_GAIN: + val = store->valGain[index]; + break; + case SND_US16X08_ID_COMP_SWITCH: + val = store->valSwitch[index]; + break; + } + ucontrol->value.integer.value[0] = val; + + return 0; +} + +static int snd_us16x08_comp_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_usb_audio *chip = elem->head.mixer->chip; + struct snd_us16x08_comp_store *store = + ((struct snd_us16x08_comp_store *) elem->private_data); + int index = ucontrol->id.index; + + char buf[sizeof(comp_msg)]; + int val, err = 0; + + /* prepare compressor URB message from template */ + memcpy(buf, comp_msg, sizeof(comp_msg)); + + /* new control value incl. bias*/ + val = ucontrol->value.integer.value[0]; + switch (elem->head.id) { + case SND_US16X08_ID_COMP_THRESHOLD: + store->valThreshold[index] = val; + break; + case SND_US16X08_ID_COMP_RATIO: + store->valRatio[index] = val; + break; + case SND_US16X08_ID_COMP_ATTACK: + store->valAttack[index] = val; + break; + case SND_US16X08_ID_COMP_RELEASE: + store->valRelease[index] = val; + break; + case SND_US16X08_ID_COMP_GAIN: + store->valGain[index] = val; + break; + case SND_US16X08_ID_COMP_SWITCH: + store->valSwitch[index] = val; + break; + } + + /* place comp values in message buffer watch bias! */ + buf[8] = store->valThreshold[index] - SND_US16X08_COMP_THRESHOLD_BIAS; + buf[11] = ratio_map[store->valRatio[index]]; + buf[14] = store->valAttack[index] + SND_US16X08_COMP_ATTACK_BIAS; + buf[17] = store->valRelease[index] + SND_US16X08_COMP_RELEASE_BIAS; + buf[20] = store->valGain[index]; + buf[26] = store->valSwitch[index]; + + /* place channel selector in message buffer */ + buf[5] = index + 1; + + err = snd_us16x08_send_urb(chip, buf, sizeof(comp_msg)); + + if (err == 0) { + elem->cached &= 1 << index; + elem->cache_val[index] = val; + } + + return 1; +} + +static int snd_us16x08_eqswitch_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int val = 0; + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_us16x08_eq_all_store *store = + ((struct snd_us16x08_eq_all_store *) elem->private_data); + int index = ucontrol->id.index; + + /* get low switch from cache is enough, cause all bands are together */ + val = store->low_store->valSwitch[index]; + ucontrol->value.integer.value[0] = val; + + return 0; +} + +static int snd_us16x08_eqswitch_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_usb_audio *chip = elem->head.mixer->chip; + struct snd_us16x08_eq_all_store *store = + ((struct snd_us16x08_eq_all_store *) elem->private_data); + int index = ucontrol->id.index; + + char buf[sizeof(eqs_msq)]; + int val, err = 0; + + /* new control value incl. bias*/ + val = ucontrol->value.integer.value[0] + SND_US16X08_KCBIAS(kcontrol); + + /* prepare URB message from EQ template */ + memcpy(buf, eqs_msq, sizeof(eqs_msq)); + + store->low_store->valSwitch[index] = val; + store->midlow_store->valSwitch[index] = val; + store->midhigh_store->valSwitch[index] = val; + store->high_store->valSwitch[index] = val; + + /* place channel index in URB message */ + buf[5] = index + 1; + + /* all four EQ bands have to be enabled/disabled in once */ + buf[20] = store->low_store->valSwitch[index]; + buf[17] = store->low_store->valWidth[index]; + buf[14] = store->low_store->valFreq[index]; + buf[11] = store->low_store->valdB[index]; + buf[8] = 0x01; + err = snd_us16x08_send_urb(chip, buf, sizeof(eqs_msq)); + + /* give time to the device to handle the request */ + mdelay(15); + buf[20] = store->midlow_store->valSwitch[index]; + buf[17] = store->midlow_store->valWidth[index]; + buf[14] = store->midlow_store->valFreq[index]; + buf[11] = store->midlow_store->valdB[index]; + buf[8] = 0x02; + err = snd_us16x08_send_urb(chip, buf, sizeof(eqs_msq)); + + mdelay(15); + buf[20] = store->midhigh_store->valSwitch[index]; + buf[17] = store->midhigh_store->valWidth[index]; + buf[14] = store->midhigh_store->valFreq[index]; + buf[11] = store->midhigh_store->valdB[index]; + buf[8] = 0x03; + err = snd_us16x08_send_urb(chip, buf, sizeof(eqs_msq)); + + mdelay(15); + buf[20] = store->high_store->valSwitch[index]; + buf[17] = store->high_store->valWidth[index]; + buf[14] = store->high_store->valFreq[index] + + SND_US16X08_EQ_HIGHFREQ_BIAS; + buf[11] = store->high_store->valdB[index]; + buf[8] = 0x04; + err = snd_us16x08_send_urb(chip, buf, sizeof(eqs_msq)); + + if (err == 0) { + store->low_store->valSwitch[index] = val; + elem->cached &= 1 << index; + elem->cache_val[index] = val; + } + + return 1; +} + +static int snd_us16x08_eq_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int val = 0; + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_us16x08_eq_store *store = + ((struct snd_us16x08_eq_store *) elem->private_data); + int index = ucontrol->id.index; + + switch (elem->head.id & 0xf0) { + case 0x00: + val = store->valdB[index]; + break; + case 0x10: + val = store->valFreq[index]; + break; + case 0x20: + val = store->valWidth[index]; + break; + } + ucontrol->value.integer.value[0] = val; + + return 0; +} + +static int snd_us16x08_eq_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_usb_audio *chip = elem->head.mixer->chip; + struct snd_us16x08_eq_store *store = + ((struct snd_us16x08_eq_store *) elem->private_data); + int index = ucontrol->id.index; + + char buf[sizeof(eqs_msq)]; + int val, err = 0; + + /* copy URB buffer from EQ template */ + memcpy(buf, eqs_msq, sizeof(eqs_msq)); + + /* add control bias to new value */ + val = ucontrol->value.integer.value[0]; + + switch (elem->head.id & 0xf0) { + case 0x00: /* level dB */ + store->valdB[index] = val; + break; + case 0x10: + store->valFreq[index] = val; + break; + case 0x20: + store->valWidth[index] = val; + break; + } + + buf[20] = store->valSwitch[index]; + buf[17] = store->valWidth[index]; + /* add eq high frequence bias if high band changed*/ + buf[14] = store->valFreq[index] + + ((elem->head.id & 0x0f) == 0x04 ? + SND_US16X08_EQ_HIGHFREQ_BIAS : SND_US16X08_NO_BIAS); + buf[11] = store->valdB[index]; + + /* place channel index in URB buffer */ + buf[5] = index + 1; + + /* place EQ band in URB buffer */ + buf[8] = (elem->head.id & 0x0F); + + err = snd_us16x08_send_urb(chip, buf, sizeof(eqs_msq)); + + if (err == 0) { + /* store new value in EQ band cache */ + elem->cached &= 1 << index; + elem->cache_val[index] = val; + } + return 1; +} + +static int snd_us16x08_meter_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->count = 1; + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->value.integer.max = 0x7FFF; + uinfo->value.integer.min = 0; + + return 0; +} + +/* calculate compressor index for reduction level request */ +static int snd_get_meter_comp_index(struct snd_us16x08_meter_store *store) +{ + int ret; + + /* any channel active */ + if (store->comp_active_index) { + /* check for stereo link */ + if (store->comp_active_index & 0x20) { + /* reset comp_index to left channel*/ + if (store->comp_index - + store->comp_active_index > 1) + store->comp_index = + store->comp_active_index; + + ret = store->comp_index++ & 0x1F; + } else { + /* no stereo link */ + ret = store->comp_active_index; + } + } else { + /* skip channels with no compressor active */ + while (!store->comp_store->valSwitch[store->comp_index - 1] && + store->comp_index < 17) { + store->comp_index++; + } + ret = store->comp_index++; + if (store->comp_index > 16) + store->comp_index = 1; + } + return ret; +} + +/* retrieve the meter level values from URB message */ +static void get_meter_levels_from_urb(int s, + struct snd_us16x08_meter_store *store, + u8 *meter_urb) +{ + int val = MUC2(meter_urb, s) + (MUC3(meter_urb, s) << 8); + + if (MUA0(meter_urb, s) == 0x61 && MUA1(meter_urb, s) == 0x02 && + MUA2(meter_urb, s) == 0x04 && MUB0(meter_urb, s) == 0x62) { + if (MUC0(meter_urb, s) == 0x72) + store->meter_level[MUB2(meter_urb, s) - 1] = val; + if (MUC0(meter_urb, s) == 0xb2) + store->comp_level[MUB2(meter_urb, s) - 1] = val; + } + if (MUA0(meter_urb, s) == 0x61 && MUA1(meter_urb, s) == 0x02 && + MUA2(meter_urb, s) == 0x02 && MUB0(meter_urb, s) == 0x62) + store->master_level[MUB2(meter_urb, s) - 1] = val; +} + +/* Function to retrieve current meter values from the device. + * + * The device needs to be polled for meter values with an initial + * requests. It will return with a sequence of different meter value + * packages. The first request (case 0:) initiate this meter response sequence. + * After the third response, an additional request can be placed, + * to retrieve compressor reduction level value for given channel. This round + * trip channel selector will skip all inactive compressors. + * A mixer can interrupt this round-trip by selecting one ore two (stereo-link) + * specific channels. + */ +static int snd_us16x08_meter_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int i, set; + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_usb_audio *chip = elem->head.mixer->chip; + struct snd_us16x08_meter_store *store = elem->private_data; + u8 meter_urb[64]; + + + if (elem) { + store = (struct snd_us16x08_meter_store *) elem->private_data; + chip = elem->head.mixer->chip; + } else + return 0; + + switch (kcontrol->private_value) { + case 0: + snd_us16x08_send_urb(chip, mix_init_msg1, 4); + snd_us16x08_recv_urb(chip, meter_urb, + sizeof(meter_urb)); + kcontrol->private_value++; + break; + case 1: + snd_us16x08_recv_urb(chip, meter_urb, + sizeof(meter_urb)); + kcontrol->private_value++; + break; + case 2: + snd_us16x08_recv_urb(chip, meter_urb, + sizeof(meter_urb)); + kcontrol->private_value++; + break; + case 3: + mix_init_msg2[2] = snd_get_meter_comp_index(store); + snd_us16x08_send_urb(chip, mix_init_msg2, 10); + snd_us16x08_recv_urb(chip, meter_urb, + sizeof(meter_urb)); + kcontrol->private_value = 0; + break; + } + + for (set = 0; set < 6; set++) + get_meter_levels_from_urb(set, store, meter_urb); + + for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) { + ucontrol->value.integer.value[i] = + store ? store->meter_level[i] : 0; + } + + ucontrol->value.integer.value[i++] = store ? store->master_level[0] : 0; + ucontrol->value.integer.value[i++] = store ? store->master_level[1] : 0; + + for (i = 2; i < SND_US16X08_MAX_CHANNELS + 2; i++) + ucontrol->value.integer.value[i + SND_US16X08_MAX_CHANNELS] = + store ? store->comp_level[i - 2] : 0; + + return 1; +} + +static int snd_us16x08_meter_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_us16x08_meter_store *store = elem->private_data; + int val; + + val = ucontrol->value.integer.value[0]; + store->comp_active_index = val; + store->comp_index = val; + + return 1; +} + +static struct snd_kcontrol_new snd_us16x08_ch_boolean_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_switch_info, + .get = snd_us16x08_channel_get, + .put = snd_us16x08_channel_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1) +}; + +static struct snd_kcontrol_new snd_us16x08_ch_int_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_channel_get, + .put = snd_us16x08_channel_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_FADER_BIAS, 1, 0, 133) +}; + +static struct snd_kcontrol_new snd_us16x08_master_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 1, + .info = snd_us16x08_master_info, + .get = snd_us16x08_master_get, + .put = snd_us16x08_master_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_FADER_BIAS, 1, 0, 133) +}; + +static struct snd_kcontrol_new snd_us16x08_route_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 8, + .info = snd_us16x08_route_info, + .get = snd_us16x08_route_get, + .put = snd_us16x08_route_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 9) +}; + +static struct snd_kcontrol_new snd_us16x08_bus_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 1, + .info = snd_us16x08_switch_info, + .get = snd_us16x08_bus_get, + .put = snd_us16x08_bus_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1) +}; + +static struct snd_kcontrol_new snd_us16x08_compswitch_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_switch_info, + .get = snd_us16x08_comp_get, + .put = snd_us16x08_comp_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1) +}; + +static struct snd_kcontrol_new snd_us16x08_comp_threshold_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_comp_get, + .put = snd_us16x08_comp_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_COMP_THRESHOLD_BIAS, 1, + 0, 0x20) +}; + +static struct snd_kcontrol_new snd_us16x08_comp_ratio_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_comp_get, + .put = snd_us16x08_comp_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, + sizeof(ratio_map) - 1), /*max*/ +}; + +static struct snd_kcontrol_new snd_us16x08_comp_gain_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_comp_get, + .put = snd_us16x08_comp_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x14) +}; + +static struct snd_kcontrol_new snd_us16x08_comp_attack_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_comp_get, + .put = snd_us16x08_comp_put, + .private_value = + SND_US16X08_KCSET(SND_US16X08_COMP_ATTACK_BIAS, 1, 0, 0xc6), +}; + +static struct snd_kcontrol_new snd_us16x08_comp_release_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_comp_get, + .put = snd_us16x08_comp_put, + .private_value = + SND_US16X08_KCSET(SND_US16X08_COMP_RELEASE_BIAS, 1, 0, 0x63), +}; + +static struct snd_kcontrol_new snd_us16x08_eq_gain_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_eq_get, + .put = snd_us16x08_eq_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 24), +}; + +static struct snd_kcontrol_new snd_us16x08_eq_low_freq_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_eq_get, + .put = snd_us16x08_eq_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x1F), +}; + +static struct snd_kcontrol_new snd_us16x08_eq_mid_freq_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_eq_get, + .put = snd_us16x08_eq_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x3F) +}; + +static struct snd_kcontrol_new snd_us16x08_eq_mid_width_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_eq_get, + .put = snd_us16x08_eq_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x06) +}; + +static struct snd_kcontrol_new snd_us16x08_eq_high_freq_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_eq_get, + .put = snd_us16x08_eq_put, + .private_value = + SND_US16X08_KCSET(SND_US16X08_EQ_HIGHFREQ_BIAS, 1, 0, 0x1F) +}; + +static struct snd_kcontrol_new snd_us16x08_eq_switch_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_switch_info, + .get = snd_us16x08_eqswitch_get, + .put = snd_us16x08_eqswitch_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1) +}; + +static struct snd_kcontrol_new snd_us16x08_meter_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 1, + .info = snd_us16x08_meter_info, + .get = snd_us16x08_meter_get, + .put = snd_us16x08_meter_put +}; + +/* control store preparation */ + +static struct snd_us16x08_common *snd_us16x08_create_mix_store(int default_val) +{ + int i; + struct snd_us16x08_common *tmp = + kmalloc(sizeof(struct snd_us16x08_common), GFP_KERNEL); + + if (tmp == NULL) + return NULL; + + for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) + tmp->value[i] = default_val; + return tmp; +} + +static struct snd_us16x08_channel_store *snd_us16x08_create_channel_store(void) +{ + int i; + struct snd_us16x08_channel_store *tmp = + kmalloc(sizeof(struct snd_us16x08_channel_store), GFP_KERNEL); + + if (tmp == NULL) + return NULL; + + for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) { + tmp->gain[i] = 127; /* 0dB */ + tmp->mute[i] = 0; + tmp->pan[i] = 127; /* center */ + tmp->phase[i] = 0; + } + return tmp; +} + +static struct snd_us16x08_comp_store *snd_us16x08_create_comp_store(void) +{ + int i = 0; + struct snd_us16x08_comp_store *tmp = + kmalloc(sizeof(struct snd_us16x08_comp_store), GFP_KERNEL); + + if (tmp == NULL) + return NULL; + + for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) { + tmp->valThreshold[i] = 0x20; /* 0dB */ + tmp->valRatio[i] = 0x00; /* 1:1 */ + tmp->valGain[i] = 0x00; /* 0dB */ + tmp->valSwitch[i] = 0x00; /* off */ + tmp->valAttack[i] = 0x00; /* 2ms */ + tmp->valRelease[i] = 0x00; /* 10ms */ + } + return tmp; +} + +static struct snd_us16x08_common *snd_us16x08_create_route_store(void) +{ + int i = 0; + struct snd_us16x08_common *tmp = + kmalloc(sizeof(struct snd_us16x08_common), GFP_KERNEL); + + if (tmp == NULL) + return NULL; + + for (i = 0; i < 8; i++) + tmp->value[i] = i < 2 ? i : i + 2; + return tmp; +} + +/* setup compressor store and assign default value */ +static struct snd_us16x08_bus_store *snd_us16x08_create_bus_store( + int default_val) +{ + struct snd_us16x08_bus_store *tmp = + kmalloc(sizeof(struct snd_us16x08_bus_store), GFP_KERNEL); + + if (tmp == NULL) + return NULL; + + tmp->bypass[0] = default_val; + tmp->bus_out[0] = default_val; + tmp->master_mute[0] = default_val; + return tmp; +} + +/* setup EQ store and assign default values */ +static struct snd_us16x08_eq_store *snd_us16x08_create_eq_store(int band_index) +{ + int i = 0; + struct snd_us16x08_eq_store *tmp = + kmalloc(sizeof(struct snd_us16x08_eq_store), GFP_KERNEL); + + if (tmp == NULL) + return NULL; + + for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) { + switch (band_index) { + case 0x01: /* EQ Low */ + tmp->valdB[i] = 0x0c; + tmp->valFreq[i] = 0x05; + tmp->valWidth[i] = 0xff; + tmp->valSwitch[i] = 0x00; /* off */ + break; + case 0x02: /* EQ Mid low */ + tmp->valdB[i] = 0x0c; + tmp->valFreq[i] = 0x0e; + tmp->valWidth[i] = 0x02; + tmp->valSwitch[i] = 0x00; /* off */ + break; + case 0x03: /* EQ Mid High */ + tmp->valdB[i] = 0x0c; + tmp->valFreq[i] = 0x1b; + tmp->valWidth[i] = 0x02; + tmp->valSwitch[i] = 0x00; /* off */ + break; + case 0x04: /* EQ High */ + tmp->valdB[i] = 0x0c; + tmp->valFreq[i] = 0x2f - SND_US16X08_EQ_HIGHFREQ_BIAS; + tmp->valWidth[i] = 0xff; + tmp->valSwitch[i] = 0x00; /* off */ + break; + } + } + return tmp; +} + +struct snd_us16x08_meter_store *snd_us16x08_create_meter_store(void) +{ + struct snd_us16x08_meter_store *tmp = + kzalloc(sizeof(struct snd_us16x08_meter_store), GFP_KERNEL); + + if (!tmp) + return NULL; + tmp->comp_index = 1; + tmp->comp_active_index = 0; + return tmp; + +} + +/* suspend/resume */ + +static void snd_us16x08_resume_route(struct usb_mixer_elem_info *elem) +{ + int i; + struct snd_us16x08_common *store = + (struct snd_us16x08_common *) elem->private_data; + + for (i = 0; i < elem->channels; i++) + if (elem->cached & (1 << i)) + store->value[i] = elem->cache_val[i]; +} + +static void snd_us16x08_resume_master(struct usb_mixer_elem_info *elem) +{ + struct snd_us16x08_common *store = + (struct snd_us16x08_common *) elem->private_data; + + if (elem->channels == 1 && elem->cached & 1) + store->value[0] = elem->cache_val[0]; +} + +static void snd_us16x08_resume_bus(struct usb_mixer_elem_info *elem) +{ + struct snd_us16x08_bus_store *store = + (struct snd_us16x08_bus_store *) elem->private_data; + + if (elem->channels == 1 && elem->cached & 1) + switch (elem->head.id) { + case SND_US16X08_ID_BYPASS: + store->bypass[0] = elem->cache_val[0]; + break; + case SND_US16X08_ID_BUSS_OUT: + store->bus_out[0] = elem->cache_val[0]; + break; + case SND_US16X08_ID_MUTE: + store->master_mute[0] = elem->cache_val[0]; + break; + } +} + +static void snd_us16x08_resume_channel(struct usb_mixer_elem_info *elem) +{ + int i; + struct snd_us16x08_channel_store *store = + (struct snd_us16x08_channel_store *) elem->private_data; + + for (i = 0; i < elem->channels; i++) + if (elem->cached & (1 << i)) + switch (elem->head.id) { + case SND_US16X08_ID_PAN: + store->pan[i] = elem->cache_val[i]; + break; + case SND_US16X08_ID_FADER: + if (elem->channels > 1) + store->gain[i] = elem->cache_val[i]; + break; + case SND_US16X08_ID_PHASE: + store->phase[i] = elem->cache_val[i]; + break; + case SND_US16X08_ID_MUTE: + if (elem->channels > 1) + store->mute[i] = elem->cache_val[i]; + break; + } +} + +static void snd_us16x08_resume_eq(struct usb_mixer_elem_info *elem) +{ + int i; + int val; + struct snd_us16x08_eq_all_store *store = + (struct snd_us16x08_eq_all_store *) elem->private_data; + + for (i = 0; i < elem->channels; i++) { + if (elem->cached & (1 << i)) { + val = elem->cache_val[i]; + switch (elem->head.id) { + case SND_US16X08_ID_EQLOWLEVEL: + store->low_store->valdB[i] = val; + break; + case SND_US16X08_ID_EQLOWMIDLEVEL: + store->midlow_store->valdB[i] = val; + break; + case SND_US16X08_ID_EQHIGHMIDLEVEL: + store->midhigh_store->valdB[i] = val; + break; + case SND_US16X08_ID_EQHIGHLEVEL: + store->high_store->valdB[i] = val; + break; + case SND_US16X08_ID_EQLOWFREQ: + store->low_store->valFreq[i] = val; + break; + case SND_US16X08_ID_EQLOWMIDFREQ: + store->midlow_store->valFreq[i] = val; + break; + case SND_US16X08_ID_EQHIGHMIDFREQ: + store->midhigh_store->valFreq[i] = val; + break; + case SND_US16X08_ID_EQHIGHFREQ: + store->high_store->valFreq[i] = val; + break; + case SND_US16X08_ID_EQLOWMIDWIDTH: + store->midlow_store->valWidth[i] = val; + break; + case SND_US16X08_ID_EQHIGHMIDWIDTH: + store->midhigh_store->valWidth[i] = val; + break; + case SND_US16X08_ID_EQENABLE: + store->low_store->valSwitch[i] = val; + store->midlow_store->valSwitch[i] = val; + store->midhigh_store->valSwitch[i] = val; + store->high_store->valSwitch[i] = val; + break; + } + } + } +} + +static void snd_us16x08_resume_comp(struct usb_mixer_elem_info *elem) +{ + int i; + int val; + struct snd_us16x08_comp_store *store = + (struct snd_us16x08_comp_store *) elem->private_data; + + for (i = 0; i < elem->channels; i++) { + if (elem->cached & (1 << i)) { + val = elem->cache_val[i]; + switch (elem->head.id) { + case SND_US16X08_ID_COMP_THRESHOLD: + store->valThreshold[i] = val; + break; + case SND_US16X08_ID_COMP_RATIO: + store->valRatio[i] = val; + break; + case SND_US16X08_ID_COMP_ATTACK: + store->valAttack[i] = val; + break; + case SND_US16X08_ID_COMP_RELEASE: + store->valRelease[i] = val; + break; + case SND_US16X08_ID_COMP_GAIN: + store->valGain[i] = val; + break; + case SND_US16X08_ID_COMP_SWITCH: + store->valSwitch[i] = val; + break; + } + } + } +} + +static int snd_us16x08_resume(struct usb_mixer_elem_list *list) +{ + struct usb_mixer_elem_info *elem = + container_of(list, struct usb_mixer_elem_info, head); + + /* restore common mixer values */ + if (elem->head.id == SND_US16X08_ID_PAN || + elem->head.id == SND_US16X08_ID_FADER || + elem->head.id == SND_US16X08_ID_PHASE || + elem->head.id == SND_US16X08_ID_MUTE) + snd_us16x08_resume_channel(elem); + + /* restore eq values */ + if (elem->head.id >= SND_US16X08_ID_EQLOWLEVEL && + elem->head.id <= SND_US16X08_ID_EQENABLE) + snd_us16x08_resume_eq(elem); + + /* restore compressor values */ + if (elem->head.id >= SND_US16X08_ID_COMP_THRESHOLD && + elem->head.id <= SND_US16X08_ID_COMP_SWITCH) + snd_us16x08_resume_comp(elem); + + /* restore route settings */ + if (elem->head.id == SND_US16X08_ID_ROUTE) + snd_us16x08_resume_route(elem); + + /* restore master value */ + if (elem->head.id == SND_US16X08_ID_FADER) + snd_us16x08_resume_master(elem); + + /* restore bus setting */ + if (elem->head.id == SND_US16X08_ID_BYPASS || + elem->head.id == SND_US16X08_ID_BUSS_OUT || + elem->head.id == SND_US16X08_ID_MUTE) + snd_us16x08_resume_bus(elem); + + return 0; +} + +static int add_new_ctl(struct usb_mixer_interface *mixer, + const struct snd_kcontrol_new *ncontrol, + int index, int val_type, int channels, + const char *name, const void *opt, + void (*freeer)(struct snd_kcontrol *kctl)) +{ + struct snd_kcontrol *kctl; + struct usb_mixer_elem_info *elem; + int err; + + usb_audio_dbg(mixer->chip, "us16x08 add mixer %s\n", name); + + if (opt == NULL) + return -EINVAL; + + elem = kzalloc(sizeof(*elem), GFP_KERNEL); + if (!elem) + return -ENOMEM; + + elem->head.mixer = mixer; + elem->head.resume = snd_us16x08_resume; + elem->control = 0; + elem->idx_off = 0; + elem->head.id = index; + elem->val_type = val_type; + elem->channels = channels; + elem->private_data = (void *) opt; + + kctl = snd_ctl_new1(ncontrol, elem); + if (!kctl) { + kfree(elem); + return -ENOMEM; + } + + kctl->private_free = freeer; + + strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); + + err = snd_usb_mixer_add_control(&elem->head, kctl); + if (err < 0) + return err; + + return 0; +} + +/* table of EQ and compressor controls */ + +static struct snd_us16x08_control_params control_params; + +static struct snd_us16x08_control_params eq_controls[] = { + { /* EQ switch */ + .kcontrol_new = &snd_us16x08_eq_switch_ctl, + .control_id = SND_US16X08_ID_EQENABLE, + .type = USB_MIXER_BOOLEAN, + .num_channels = 16, + .name = "EQ enable", + .freeer = snd_usb_mixer_elem_free + }, + { /* EQ low gain */ + .kcontrol_new = &snd_us16x08_eq_gain_ctl, + .control_id = SND_US16X08_ID_EQLOWLEVEL, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "Low gain", + .freeer = snd_usb_mixer_elem_free + }, + { /* EQ low freq */ + .kcontrol_new = &snd_us16x08_eq_low_freq_ctl, + .control_id = SND_US16X08_ID_EQLOWFREQ, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "Low freq", + .freeer = NULL + }, + { /* EQ mid low gain */ + .kcontrol_new = &snd_us16x08_eq_gain_ctl, + .control_id = SND_US16X08_ID_EQLOWMIDLEVEL, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "Mid low gain", + .freeer = snd_usb_mixer_elem_free + }, + { /* EQ mid low freq */ + .kcontrol_new = &snd_us16x08_eq_mid_freq_ctl, + .control_id = SND_US16X08_ID_EQLOWMIDFREQ, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "Mid low freq", + .freeer = NULL + }, + { /* EQ mid low Q */ + .kcontrol_new = &snd_us16x08_eq_mid_width_ctl, + .control_id = SND_US16X08_ID_EQLOWMIDWIDTH, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "Mid low Q", + .freeer = NULL + }, + { /* EQ mid high gain */ + .kcontrol_new = &snd_us16x08_eq_gain_ctl, + .control_id = SND_US16X08_ID_EQHIGHMIDLEVEL, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "Mid high gain", + .freeer = snd_usb_mixer_elem_free + }, + { /* EQ mid high freq */ + .kcontrol_new = &snd_us16x08_eq_mid_freq_ctl, + .control_id = SND_US16X08_ID_EQHIGHMIDFREQ, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "Mid high freq", + .freeer = NULL + }, + { /* EQ mid high Q */ + .kcontrol_new = &snd_us16x08_eq_mid_width_ctl, + .control_id = SND_US16X08_ID_EQHIGHMIDWIDTH, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "Mid high Q", + .freeer = NULL + }, + { /* EQ high gain */ + .kcontrol_new = &snd_us16x08_eq_gain_ctl, + .control_id = SND_US16X08_ID_EQHIGHLEVEL, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "High gain", + .freeer = snd_usb_mixer_elem_free + }, + { /* EQ low freq */ + .kcontrol_new = &snd_us16x08_eq_high_freq_ctl, + .control_id = SND_US16X08_ID_EQHIGHFREQ, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "High freq", + .freeer = NULL + }, +}; + +static struct snd_us16x08_control_params comp_controls[] = { + { /* Comp enable */ + .kcontrol_new = &snd_us16x08_compswitch_ctl, + .control_id = SND_US16X08_ID_COMP_SWITCH, + .type = USB_MIXER_BOOLEAN, + .num_channels = 16, + .name = "Comp enable", + .freeer = snd_usb_mixer_elem_free + }, + { /* Comp threshold */ + .kcontrol_new = &snd_us16x08_comp_threshold_ctl, + .control_id = SND_US16X08_ID_COMP_THRESHOLD, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "Threshold", + .freeer = snd_usb_mixer_elem_free + }, + { /* Comp ratio */ + .kcontrol_new = &snd_us16x08_comp_ratio_ctl, + .control_id = SND_US16X08_ID_COMP_RATIO, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "Ratio", + .freeer = snd_usb_mixer_elem_free + }, + { /* Comp attack */ + .kcontrol_new = &snd_us16x08_comp_attack_ctl, + .control_id = SND_US16X08_ID_COMP_ATTACK, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "Attack", + .freeer = snd_usb_mixer_elem_free + }, + { /* Comp release */ + .kcontrol_new = &snd_us16x08_comp_release_ctl, + .control_id = SND_US16X08_ID_COMP_RELEASE, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "Release", + .freeer = snd_usb_mixer_elem_free + }, + { /* Comp gain */ + .kcontrol_new = &snd_us16x08_comp_gain_ctl, + .control_id = SND_US16X08_ID_COMP_GAIN, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "Gain", + .freeer = snd_usb_mixer_elem_free + }, +}; + +static int snd_us16x08_controls_create_eq(struct usb_mixer_interface *mixer) +{ + int i; + int err; + void *store = NULL; + struct snd_us16x08_eq_store *eq_low_store = + snd_us16x08_create_eq_store(0x01); + struct snd_us16x08_eq_store *eq_midlow_store = + snd_us16x08_create_eq_store(0x02); + struct snd_us16x08_eq_store *eq_midhigh_store = + snd_us16x08_create_eq_store(0x03); + struct snd_us16x08_eq_store *eq_high_store = + snd_us16x08_create_eq_store(0x04); + struct snd_us16x08_eq_all_store *eq_all_store = + kmalloc(sizeof(struct snd_us16x08_eq_all_store), GFP_KERNEL); + + /* check for allocation error */ + if (eq_low_store == NULL || eq_midlow_store == NULL || + eq_midhigh_store == NULL || eq_high_store == NULL || + eq_all_store == NULL) + return -ENOMEM; + + /* combine EQ per band stores */ + eq_all_store->low_store = eq_low_store; + eq_all_store->midlow_store = eq_midlow_store; + eq_all_store->midhigh_store = eq_midhigh_store; + eq_all_store->high_store = eq_high_store; + + for (i = 0; i < sizeof(eq_controls) / + sizeof(control_params); i++) { + + switch (eq_controls[i].control_id & 0xf) { + case 0x00: + store = eq_all_store; + break; + case 0x01: + store = eq_low_store; + break; + case 0x02: + store = eq_midlow_store; + break; + case 0x03: + store = eq_midhigh_store; + break; + case 0x04: + store = eq_high_store; + break; + } + err = add_new_ctl(mixer, + eq_controls[i].kcontrol_new, + eq_controls[i].control_id, + eq_controls[i].type, + eq_controls[i].num_channels, + eq_controls[i].name, + store, + eq_controls[i].freeer); + if (err < 0) + return err; + } + + return 0; +} + +int snd_us16x08_controls_create(struct usb_mixer_interface *mixer) +{ + int i; + int err; + struct snd_us16x08_common *route_store; + struct snd_us16x08_comp_store *comp_store; + struct snd_us16x08_meter_store *meter_store; + struct snd_us16x08_common *master_store; + struct snd_us16x08_bus_store *bus_store; + struct snd_us16x08_channel_store *channel_store; + + /* just check for non-MIDI interface */ + if (mixer->hostif->desc.bInterfaceNumber == 3) { + + /* create compressor mixer elements */ + comp_store = snd_us16x08_create_comp_store(); + if (comp_store == NULL) + return -ENOMEM; + + /* create bus routing store */ + route_store = snd_us16x08_create_route_store(); + if (route_store == NULL) + return -ENOMEM; + + /* create meters store */ + meter_store = snd_us16x08_create_meter_store(); + if (meter_store == NULL) + return -ENOMEM; + + /* create master store */ + master_store = snd_us16x08_create_mix_store(127); + if (master_store == NULL) + return -ENOMEM; + + /* create bus store */ + bus_store = snd_us16x08_create_bus_store(0); + if (bus_store == NULL) + return -ENOMEM; + + /* create channel store */ + channel_store = snd_us16x08_create_channel_store(); + if (channel_store == NULL) + return -ENOMEM; + + err = add_new_ctl(mixer, &snd_us16x08_route_ctl, + SND_US16X08_ID_ROUTE, USB_MIXER_U8, 8, "Route", + (void *) route_store, snd_usb_mixer_elem_free); + if (err < 0) + return err; + + err = add_new_ctl(mixer, &snd_us16x08_master_ctl, + SND_US16X08_ID_FADER, USB_MIXER_U8, 1, "Master", + (void *) master_store, + snd_usb_mixer_elem_free); + if (err < 0) + return err; + + err = add_new_ctl(mixer, &snd_us16x08_bus_ctl, + SND_US16X08_ID_BYPASS, USB_MIXER_U8, 1, "Bypass", + (void *) bus_store, snd_usb_mixer_elem_free); + if (err < 0) + return err; + + err = add_new_ctl(mixer, &snd_us16x08_bus_ctl, + SND_US16X08_ID_BUSS_OUT, USB_MIXER_U8, 1, "Buss out", + (void *) bus_store, NULL); + if (err < 0) + return err; + + err = add_new_ctl(mixer, &snd_us16x08_bus_ctl, + SND_US16X08_ID_MUTE, USB_MIXER_U8, 1, "Master mute", + (void *) bus_store, NULL); + if (err < 0) + return err; + + err = add_new_ctl(mixer, &snd_us16x08_ch_boolean_ctl, + SND_US16X08_ID_PHASE, USB_MIXER_U8, 16, "Phase", + (void *) channel_store, + snd_usb_mixer_elem_free); + if (err < 0) + return err; + + err = add_new_ctl(mixer, &snd_us16x08_ch_int_ctl, + SND_US16X08_ID_FADER, USB_MIXER_S16, 16, "Fader", + (void *) channel_store, NULL); + if (err < 0) + return err; + + err = add_new_ctl(mixer, &snd_us16x08_ch_boolean_ctl, + SND_US16X08_ID_MUTE, USB_MIXER_BOOLEAN, 16, "Mute", + (void *) channel_store, NULL); + + if (err < 0) + return err; + + err = add_new_ctl(mixer, &snd_us16x08_ch_int_ctl, + SND_US16X08_ID_PAN, USB_MIXER_U16, 16, "Pan", + (void *) channel_store, NULL); + if (err < 0) + return err; + + /* add EQ controls */ + err = snd_us16x08_controls_create_eq(mixer); + if (err < 0) + return err; + + /* add compressor controls */ + for (i = 0; + i < sizeof(comp_controls) + / sizeof(control_params); + i++) { + + err = add_new_ctl(mixer, + comp_controls[i].kcontrol_new, + comp_controls[i].control_id, + comp_controls[i].type, + comp_controls[i].num_channels, + comp_controls[i].name, + comp_store, + comp_controls[i].freeer); + if (err < 0) + return err; + } + + /* meter function 'get' must access to compressor store + * so place a reference here + */ + meter_store->comp_store = comp_store; + err = add_new_ctl(mixer, &snd_us16x08_meter_ctl, + SND_US16X08_ID_METER, USB_MIXER_U16, 0, "Meter", + (void *) meter_store, snd_usb_mixer_elem_free); + if (err < 0) + return err; + } + + return 0; +} diff --git a/sound/usb/mixer_us16x08.h b/sound/usb/mixer_us16x08.h new file mode 100644 index 0000000..2b42329 --- /dev/null +++ b/sound/usb/mixer_us16x08.h @@ -0,0 +1,142 @@ +#ifndef __USB_MIXER_US16X08_H +#define __USB_MIXER_US16X08_H + +#define SND_US16X08_MAX_CHANNELS 16 + +/* define some bias, cause some alsa-mixers wont work with + * negative ranges or if mixer-min != 0 + */ +#define SND_US16X08_NO_BIAS 0 +#define SND_US16X08_FADER_BIAS 127 +#define SND_US16X08_EQ_HIGHFREQ_BIAS 0x20 +#define SND_US16X08_COMP_THRESHOLD_BIAS 0x20 +#define SND_US16X08_COMP_ATTACK_BIAS 2 +#define SND_US16X08_COMP_RELEASE_BIAS 1 + +/* get macro for components of kcontrol private_value */ +#define SND_US16X08_KCBIAS(x) (((x)->private_value >> 24) & 0xff) +#define SND_US16X08_KCSTEP(x) (((x)->private_value >> 16) & 0xff) +#define SND_US16X08_KCMIN(x) (((x)->private_value >> 8) & 0xff) +#define SND_US16X08_KCMAX(x) (((x)->private_value >> 0) & 0xff) +/* set macro for kcontrol private_value */ +#define SND_US16X08_KCSET(bias, step, min, max) \ + (((bias) << 24) | ((step) << 16) | ((min) << 8) | (max)) + +/* the URB request/type to control Tascam mixers */ +#define SND_US16X08_URB_REQUEST 0x1D +#define SND_US16X08_URB_REQUESTTYPE 0x40 + +/* the URB params to retrieve meter ranges */ +#define SND_US16X08_URB_METER_REQUEST 0x1e +#define SND_US16X08_URB_METER_REQUESTTYPE 0xc0 + +#define MUA0(x, y) ((x)[(y) * 10 + 4]) +#define MUA1(x, y) ((x)[(y) * 10 + 5]) +#define MUA2(x, y) ((x)[(y) * 10 + 6]) +#define MUB0(x, y) ((x)[(y) * 10 + 7]) +#define MUB1(x, y) ((x)[(y) * 10 + 8]) +#define MUB2(x, y) ((x)[(y) * 10 + 9]) +#define MUC0(x, y) ((x)[(y) * 10 + 10]) +#define MUC1(x, y) ((x)[(y) * 10 + 11]) +#define MUC2(x, y) ((x)[(y) * 10 + 12]) +#define MUC3(x, y) ((x)[(y) * 10 + 13]) + +/* Common Channel control IDs */ +#define SND_US16X08_ID_BYPASS 0x45 +#define SND_US16X08_ID_BUSS_OUT 0x44 +#define SND_US16X08_ID_PHASE 0x85 +#define SND_US16X08_ID_MUTE 0x83 +#define SND_US16X08_ID_FADER 0x81 +#define SND_US16X08_ID_PAN 0x82 +#define SND_US16X08_ID_METER 0xB1 + +/* EQ level IDs */ +#define SND_US16X08_ID_EQLOWLEVEL 0x01 +#define SND_US16X08_ID_EQLOWMIDLEVEL 0x02 +#define SND_US16X08_ID_EQHIGHMIDLEVEL 0x03 +#define SND_US16X08_ID_EQHIGHLEVEL 0x04 + +/* EQ frequence IDs */ +#define SND_US16X08_ID_EQLOWFREQ 0x11 +#define SND_US16X08_ID_EQLOWMIDFREQ 0x12 +#define SND_US16X08_ID_EQHIGHMIDFREQ 0x13 +#define SND_US16X08_ID_EQHIGHFREQ 0x14 + +/* EQ width IDs */ +#define SND_US16X08_ID_EQLOWMIDWIDTH 0x22 +#define SND_US16X08_ID_EQHIGHMIDWIDTH 0x23 + +#define SND_US16X08_ID_EQENABLE 0x30 + +#define SND_US16X08_ID_ROUTE 0x00 + +/* Compressor Ids */ +#define SND_US16X08_ID_COMP_THRESHOLD 0x32 +#define SND_US16X08_ID_COMP_RATIO 0x33 +#define SND_US16X08_ID_COMP_ATTACK 0x34 +#define SND_US16X08_ID_COMP_RELEASE 0x35 +#define SND_US16X08_ID_COMP_GAIN 0x36 +#define SND_US16X08_ID_COMP_SWITCH 0x37 + +struct snd_us16x08_common { + u8 value[SND_US16X08_MAX_CHANNELS]; +}; + +struct snd_us16x08_channel_store { + u8 gain[SND_US16X08_MAX_CHANNELS]; + u8 phase[SND_US16X08_MAX_CHANNELS]; + u8 pan[SND_US16X08_MAX_CHANNELS]; + u8 mute[SND_US16X08_MAX_CHANNELS]; +}; + +struct snd_us16x08_eq_store { + u8 valdB[SND_US16X08_MAX_CHANNELS]; + u8 valFreq[SND_US16X08_MAX_CHANNELS]; + u8 valWidth[SND_US16X08_MAX_CHANNELS]; + u8 valSwitch[SND_US16X08_MAX_CHANNELS]; +}; + +struct snd_us16x08_eq_all_store { + struct snd_us16x08_eq_store *low_store; + struct snd_us16x08_eq_store *midlow_store; + struct snd_us16x08_eq_store *midhigh_store; + struct snd_us16x08_eq_store *high_store; +}; + +struct snd_us16x08_comp_store { + u8 valThreshold[SND_US16X08_MAX_CHANNELS]; + u8 valAttack[SND_US16X08_MAX_CHANNELS]; + u8 valRelease[SND_US16X08_MAX_CHANNELS]; + u8 valRatio[SND_US16X08_MAX_CHANNELS]; + u8 valGain[SND_US16X08_MAX_CHANNELS]; + u8 valSwitch[SND_US16X08_MAX_CHANNELS]; +}; + +struct snd_us16x08_meter_store { + int meter_level[SND_US16X08_MAX_CHANNELS]; + int master_level[2]; /* level of meter for master output */ + int comp_index; /* round trip channel selector */ + int comp_active_index; /* channel select from user space mixer */ + int comp_level[16]; /* compressor reduction level */ + struct snd_us16x08_comp_store *comp_store; +}; + +struct snd_us16x08_bus_store { + int bypass[1]; + int bus_out[1]; + int master_mute[1]; +}; + +struct snd_us16x08_control_params { + struct snd_kcontrol_new *kcontrol_new; + int control_id; + int type; + int num_channels; + const char *name; + void (*freeer)(struct snd_kcontrol *kctl); +}; + +#define snd_us16x08_switch_info snd_ctl_boolean_mono_info + +int snd_us16x08_controls_create(struct usb_mixer_interface *mixer); +#endif /* __USB_MIXER_US16X08_H */