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Release 4.13 sound/usb/mixer_us16x08.c

Directory: sound/usb
/*
 *   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 <sound/core.h>
#include <sound/control.h>

#include "usbaudio.h"
#include "mixer.h"
#include "helper.h"

#include "mixer_us16x08.h"

/* USB control message templates */

static const 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 const char mix_init_msg1[] = {
	0x71, 0x01, 0x00, 0x00
};


static const char mix_init_msg2[] = {
	0x62, 0x02, 0x00, 0x61, 0x02, 0x04, 0xb1, 0x01, 0x00, 0x00
};


static const 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 const 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 const char bypass_msg_out[] = {
	0x45,
	0x02,
	0x01, /* on/off flag */
	0x00,
	0x00
};


static const char bus_msg_out[] = {
	0x44,
	0x02,
	0x01, /* on/off flag */
	0x00,
	0x00
};


static const 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 const 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 const char ratio_map[] = {
	0x0a, 0x0b, 0x0d, 0x0f, 0x11, 0x14, 0x19, 0x1e,
	0x23, 0x28, 0x32, 0x3c, 0x50, 0xa0, 0xff
};

/* route enumeration names */

static const char *const route_names[] = {
	"Master Left", "Master Right", "Output 1", "Output 2", "Output 3",
	"Output 4", "Output 5", "Output 6", "Output 7", "Output 8",
};


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; }

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/* wrapper function to send prepared URB buffer to usb device. Return an error * code if something went wrong */
static int snd_us16x08_send_urb(struct snd_usb_audio *chip, char *buf, int size) { return snd_usb_ctl_msg(chip->dev, usb_sndctrlpipe(chip->dev, 0), SND_US16X08_URB_REQUEST, SND_US16X08_URB_REQUESTTYPE, 0, 0, buf, size); }

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static int snd_us16x08_route_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { return snd_ctl_enum_info(uinfo, 1, 10, route_names); }

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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; int index = ucontrol->id.index; /* route has no bias */ ucontrol->value.enumerated.item[0] = elem->cache_val[index]; return 0; }

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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; int index = ucontrol->id.index; char buf[sizeof(route_msg)]; int val, val_org, err; /* get the new value (no bias for routes) */ val = ucontrol->value.enumerated.item[0]; /* sanity check */ if (val < 0 || val > 9) return -EINVAL; /* prepare the message buffer from template */ memcpy(buf, route_msg, sizeof(route_msg)); 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) { elem->cached |= 1 << index; elem->cache_val[index] = val; } else { usb_audio_dbg(chip, "Failed to set routing, err:%d\n", err); } return err > 0 ? 1 : 0; }

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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; }

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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; int index = ucontrol->id.index; ucontrol->value.integer.value[0] = elem->cache_val[index]; return 0; }

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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; char buf[sizeof(mix_msg_out)]; int val, err; int index = ucontrol->id.index; /* new control value incl. bias*/ val = ucontrol->value.integer.value[0]; /* sanity check */ if (val < SND_US16X08_KCMIN(kcontrol) || val > SND_US16X08_KCMAX(kcontrol)) return -EINVAL; /* prepare the message buffer from template */ memcpy(buf, mix_msg_out, sizeof(mix_msg_out)); 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) { elem->cached |= 1 << index; elem->cache_val[index] = val; } else { usb_audio_dbg(chip, "Failed to set master, err:%d\n", err); } return err > 0 ? 1 : 0; }

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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; 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)); 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)); 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)); break; } if (err > 0) { elem->cached |= 1; elem->cache_val[0] = val; } else { usb_audio_dbg(chip, "Failed to set buss param, err:%d\n", err); } return err > 0 ? 1 : 0; }

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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; switch (elem->head.id) { case SND_US16X08_ID_BUSS_OUT: ucontrol->value.integer.value[0] = elem->cache_val[0]; break; case SND_US16X08_ID_BYPASS: ucontrol->value.integer.value[0] = elem->cache_val[0]; break; case SND_US16X08_ID_MUTE: ucontrol->value.integer.value[0] = elem->cache_val[0]; break; } return 0; }

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/* 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; int index = ucontrol->id.index; ucontrol->value.integer.value[0] = elem->cache_val[index]; return 0; }

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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; char buf[sizeof(mix_msg_in)]; int val, err; int index = ucontrol->id.index; val = ucontrol->value.integer.value[0]; /* sanity check */ if (val < SND_US16X08_KCMIN(kcontrol) || val > SND_US16X08_KCMAX(kcontrol)) return -EINVAL; /* prepare URB message from template */ memcpy(buf, mix_msg_in, sizeof(mix_msg_in)); /* 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) { elem->cached |= 1 << index; elem->cache_val[index] = val; } else { usb_audio_dbg(chip, "Failed to set channel, err:%d\n", err); } return err > 0 ? 1 : 0; }

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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; }

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static int snd_us16x08_comp_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct usb_mixer_elem_info *elem = kcontrol->private_data; struct snd_us16x08_comp_store *store = elem->private_data; int index = ucontrol->id.index; int val_idx = COMP_STORE_IDX(elem->head.id); ucontrol->value.integer.value[0] = store->val[val_idx][index]; return 0; }

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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 = elem->private_data; int index = ucontrol->id.index; char buf[sizeof(comp_msg)]; int val_idx, val; int err; val = ucontrol->value.integer.value[0]; /* sanity check */ if (val < SND_US16X08_KCMIN(kcontrol) || val > SND_US16X08_KCMAX(kcontrol)) return -EINVAL; /* new control value incl. bias*/ val_idx = elem->head.id - SND_US16X08_ID_COMP_BASE; store->val[val_idx][index] = ucontrol->value.integer.value[0]; /* prepare compressor URB message from template */ memcpy(buf, comp_msg, sizeof(comp_msg)); /* place comp values in message buffer watch bias! */ buf[8] = store->val[ COMP_STORE_IDX(SND_US16X08_ID_COMP_THRESHOLD)][index] - SND_US16X08_COMP_THRESHOLD_BIAS; buf[11] = ratio_map[store->val[ COMP_STORE_IDX(SND_US16X08_ID_COMP_RATIO)][index]]; buf[14] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_ATTACK)][index] + SND_US16X08_COMP_ATTACK_BIAS; buf[17] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_RELEASE)][index] + SND_US16X08_COMP_RELEASE_BIAS; buf[20] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_GAIN)][index]; buf[26] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_SWITCH)][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; } else { usb_audio_dbg(chip, "Failed to set compressor, err:%d\n", err); } return 1; }

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static int snd_us16x08_eqswitch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { int val; struct usb_mixer_elem_info *elem = kcontrol->private_data; struct snd_us16x08_eq_store *store = elem->private_data; int index = ucontrol->id.index; /* get low switch from cache is enough, cause all bands are together */ val = store->val[EQ_STORE_BAND_IDX(elem->head.id)] [EQ_STORE_PARAM_IDX(elem->head.id)][index]; ucontrol->value.integer.value[0] = val; return 0; }

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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_store *store = elem->private_data; int index = ucontrol->id.index; char buf[sizeof(eqs_msq)]; int val, err = 0; int b_idx; /* 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)); /* place channel index in URB message */ buf[5] = index + 1; for (b_idx = 0; b_idx < SND_US16X08_ID_EQ_BAND_COUNT; b_idx++) { /* all four EQ bands have to be enabled/disabled in once */ buf[20] = val; buf[17] = store->val[b_idx][2][index]; buf[14] = store->val[b_idx][1][index]; buf[11] = store->val[b_idx][0][index]; buf[8] = b_idx + 1; err = snd_us16x08_send_urb(chip, buf, sizeof(eqs_msq)); if (err < 0) break; store->val[b_idx][3][index] = val; msleep(15); } if (err > 0) { elem->cached |= 1 << index; elem->cache_val[index] = val; } else { usb_audio_dbg(chip, "Failed to set eq switch, err:%d\n", err); } return 1; }

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static int snd_us16x08_eq_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { int val; struct usb_mixer_elem_info *elem = kcontrol->private_data; struct snd_us16x08_eq_store *store = elem->private_data; int index = ucontrol->id.index; int b_idx = EQ_STORE_BAND_IDX(elem->head.id) - 1; int p_idx = EQ_STORE_PARAM_IDX(elem->head.id); val = store->val[b_idx][p_idx][index]; ucontrol->value.integer.value[0] = val; return 0; }

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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 = elem->private_data; int index = ucontrol->id.index; char buf[sizeof(eqs_msq)]; int val, err; int b_idx = EQ_STORE_BAND_IDX(elem->head.id) - 1; int p_idx = EQ_STORE_PARAM_IDX(elem->head.id); val = ucontrol->value.integer.value[0]; /* sanity check */ if (val < SND_US16X08_KCMIN(kcontrol) || val > SND_US16X08_KCMAX(kcontrol)) return -EINVAL; /* copy URB buffer from EQ template */ memcpy(buf, eqs_msq, sizeof(eqs_msq)); store->val[b_idx][p_idx][index] = val; buf[20] = store->val[b_idx][3][index]; buf[17] = store->val[b_idx][2][index]; buf[14] = store->val[b_idx][1][index]; buf[11] = store->val[b_idx][0][index]; /* place channel index in URB buffer */ buf[5] = index + 1; /* place EQ band in URB buffer */ buf[8] = b_idx + 1; 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; } else { usb_audio_dbg(chip, "Failed to set eq param, err:%d\n", err); } return 1; }

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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; }

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/* 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->val[ COMP_STORE_IDX(SND_US16X08_ID_COMP_SWITCH)] [store->comp_index - 1] && store->comp_index <= SND_US16X08_MAX_CHANNELS) { store->comp_index++; } ret = store->comp_index++; if (store->comp_index > SND_US16X08_MAX_CHANNELS) store->comp_index = 1; } return ret; }

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/* 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; }

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/* 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]; switch (kcontrol->private_value) { case 0: { char tmp[sizeof(mix_init_msg1)]; memcpy(tmp, mix_init_msg1, sizeof(mix_init_msg1)); snd_us16x08_send_urb(chip, tmp, 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: { char tmp[sizeof(mix_init_msg2)]; memcpy(tmp, mix_init_msg2, sizeof(mix_init_msg2)); tmp[2] = snd_get_meter_comp_index(store); snd_us16x08_send_urb(chip, tmp, 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; }

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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]; /* sanity check */ if (val < 0 || val >= SND_US16X08_MAX_CHANNELS) return -EINVAL; store->comp_active_index = val; store->comp_index = val; return 1; }

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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_pan_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, 255) }; 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 */ /* setup compressor store and assign default value */
static struct snd_us16x08_comp_store *snd_us16x08_create_comp_store(void) { int i; struct snd_us16x08_comp_store *tmp; tmp = kmalloc(sizeof(*tmp), GFP_KERNEL); if (!tmp) return NULL; for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) { tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_THRESHOLD)][i] = 0x20; tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_RATIO)][i] = 0x00; tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_GAIN)][i] = 0x00; tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_SWITCH)][i] = 0x00; tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_ATTACK)][i] = 0x00; tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_RELEASE)][i] = 0x00; } return tmp; }

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/* setup EQ store and assign default values */
static struct snd_us16x08_eq_store *snd_us16x08_create_eq_store(void) { int i, b_idx; struct snd_us16x08_eq_store *tmp; tmp = kmalloc(sizeof(*tmp), GFP_KERNEL); if (!tmp) return NULL; for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) { for (b_idx = 0; b_idx < SND_US16X08_ID_EQ_BAND_COUNT; b_idx++) { tmp->val[b_idx][0][i] = 0x0c; tmp->val[b_idx][3][i] = 0x00; switch (b_idx) { case 0: /* EQ Low */ tmp->val[b_idx][1][i] = 0x05; tmp->val[b_idx][2][i] = 0xff; break; case 1: /* EQ Mid low */ tmp->val[b_idx][1][i] = 0x0e; tmp->val[b_idx][2][i] = 0x02; break; case 2: /* EQ Mid High */ tmp->val[b_idx][1][i] = 0x1b; tmp->val[b_idx][2][i] = 0x02; break; case 3: /* EQ High */ tmp->val[b_idx][1][i] = 0x2f - SND_US16X08_EQ_HIGHFREQ_BIAS; tmp->val[b_idx][2][i] = 0xff; break; } } } return tmp; }

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static struct snd_us16x08_meter_store *snd_us16x08_create_meter_store(void) { struct snd_us16x08_meter_store *tmp; tmp = kzalloc(sizeof(*tmp), GFP_KERNEL); if (!tmp) return NULL; tmp->comp_index = 1; tmp->comp_active_index = 0; return tmp; }

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/* release elem->private_free as well; called only once for each *_store */
static void elem_private_free(struct snd_kcontrol *kctl) { struct usb_mixer_elem_info *elem = kctl->private_data; if (elem) kfree(elem->private_data); kfree(elem); kctl->private_data = NULL; }

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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, void *opt, bool do_private_free, struct usb_mixer_elem_info **elem_ret) { struct snd_kcontrol *kctl; struct usb_mixer_elem_info *elem; int err; usb_audio_dbg(mixer->chip, "us16x08 add mixer %s\n", name); elem = kzalloc(sizeof(*elem), GFP_KERNEL); if (!elem) return -ENOMEM; elem->head.mixer = mixer; elem->head.resume = NULL; elem->control = 0; elem->idx_off = 0; elem->head.id = index; elem->val_type = val_type; elem->channels = channels; elem->private_data = opt; kctl = snd_ctl_new1(ncontrol, elem); if (!kctl) { kfree(elem); return -ENOMEM; } if (do_private_free) kctl->private_free = elem_private_free; else kctl->private_free = snd_usb_mixer_elem_free; strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); err = snd_usb_mixer_add_control(&elem->head, kctl); if (err < 0) return err; if (elem_ret) *elem_ret = elem; return 0; }

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/* table of EQ controls */ static const 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 Switch", }, { /* EQ low gain */ .kcontrol_new = &snd_us16x08_eq_gain_ctl, .control_id = SND_US16X08_ID_EQLOWLEVEL, .type = USB_MIXER_U8, .num_channels = 16, .name = "EQ Low Volume", }, { /* 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 = "EQ Low Frequence", }, { /* 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 = "EQ MidLow Volume", }, { /* 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 = "EQ MidLow Frequence", }, { /* 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 = "EQ MidLow Q", }, { /* 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 = "EQ MidHigh Volume", }, { /* 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 = "EQ MidHigh Frequence", }, { /* 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 = "EQ MidHigh Q", }, { /* EQ high gain */ .kcontrol_new = &snd_us16x08_eq_gain_ctl, .control_id = SND_US16X08_ID_EQHIGHLEVEL, .type = USB_MIXER_U8, .num_channels = 16, .name = "EQ High Volume", }, { /* 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 = "EQ High Frequence", }, }; /* table of compressor controls */ static const 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 = "Compressor Switch", }, { /* Comp threshold */ .kcontrol_new = &snd_us16x08_comp_threshold_ctl, .control_id = SND_US16X08_ID_COMP_THRESHOLD, .type = USB_MIXER_U8, .num_channels = 16, .name = "Compressor Threshold Volume", }, { /* Comp ratio */ .kcontrol_new = &snd_us16x08_comp_ratio_ctl, .control_id = SND_US16X08_ID_COMP_RATIO, .type = USB_MIXER_U8, .num_channels = 16, .name = "Compressor Ratio", }, { /* Comp attack */ .kcontrol_new = &snd_us16x08_comp_attack_ctl, .control_id = SND_US16X08_ID_COMP_ATTACK, .type = USB_MIXER_U8, .num_channels = 16, .name = "Compressor Attack", }, { /* Comp release */ .kcontrol_new = &snd_us16x08_comp_release_ctl, .control_id = SND_US16X08_ID_COMP_RELEASE, .type = USB_MIXER_U8, .num_channels = 16, .name = "Compressor Release", }, { /* Comp gain */ .kcontrol_new = &snd_us16x08_comp_gain_ctl, .control_id = SND_US16X08_ID_COMP_GAIN, .type = USB_MIXER_U8, .num_channels = 16, .name = "Compressor Volume", }, }; /* table of channel controls */ static const struct snd_us16x08_control_params channel_controls[] = { { /* Phase */ .kcontrol_new = &snd_us16x08_ch_boolean_ctl, .control_id = SND_US16X08_ID_PHASE, .type = USB_MIXER_BOOLEAN, .num_channels = 16, .name = "Phase Switch", .default_val = 0 }, { /* Fader */ .kcontrol_new = &snd_us16x08_ch_int_ctl, .control_id = SND_US16X08_ID_FADER, .type = USB_MIXER_U8, .num_channels = 16, .name = "Line Volume", .default_val = 127 }, { /* Mute */ .kcontrol_new = &snd_us16x08_ch_boolean_ctl, .control_id = SND_US16X08_ID_MUTE, .type = USB_MIXER_BOOLEAN, .num_channels = 16, .name = "Mute Switch", .default_val = 0 }, { /* Pan */ .kcontrol_new = &snd_us16x08_pan_int_ctl, .control_id = SND_US16X08_ID_PAN, .type = USB_MIXER_U16, .num_channels = 16, .name = "Pan Left-Right Volume", .default_val = 127 }, }; /* table of master controls */ static const struct snd_us16x08_control_params master_controls[] = { { /* Master */ .kcontrol_new = &snd_us16x08_master_ctl, .control_id = SND_US16X08_ID_FADER, .type = USB_MIXER_U8, .num_channels = 16, .name = "Master Volume", .default_val = 127 }, { /* Bypass */ .kcontrol_new = &snd_us16x08_bus_ctl, .control_id = SND_US16X08_ID_BYPASS, .type = USB_MIXER_BOOLEAN, .num_channels = 16, .name = "DSP Bypass Switch", .default_val = 0 }, { /* Buss out */ .kcontrol_new = &snd_us16x08_bus_ctl, .control_id = SND_US16X08_ID_BUSS_OUT, .type = USB_MIXER_BOOLEAN, .num_channels = 16, .name = "Buss Out Switch", .default_val = 0 }, { /* Master mute */ .kcontrol_new = &snd_us16x08_bus_ctl, .control_id = SND_US16X08_ID_MUTE, .type = USB_MIXER_BOOLEAN, .num_channels = 16, .name = "Master Mute Switch", .default_val = 0 }, };
int snd_us16x08_controls_create(struct usb_mixer_interface *mixer) { int i, j; int err; struct usb_mixer_elem_info *elem; struct snd_us16x08_comp_store *comp_store; struct snd_us16x08_meter_store *meter_store; struct snd_us16x08_eq_store *eq_store; /* just check for non-MIDI interface */ if (mixer->hostif->desc.bInterfaceNumber == 3) { /* add routing control */ err = add_new_ctl(mixer, &snd_us16x08_route_ctl, SND_US16X08_ID_ROUTE, USB_MIXER_U8, 8, "Line Out Route", NULL, false, &elem); if (err < 0) { usb_audio_dbg(mixer->chip, "Failed to create route control, err:%d\n", err); return err; } for (i = 0; i < 8; i++) elem->cache_val[i] = i < 2 ? i : i + 2; elem->cached = 0xff; /* create compressor mixer elements */ comp_store = snd_us16x08_create_comp_store(); if (!comp_store) return -ENOMEM; /* add master controls */ for (i = 0; i < ARRAY_SIZE(master_controls); i++) { err = add_new_ctl(mixer, master_controls[i].kcontrol_new, master_controls[i].control_id, master_controls[i].type, master_controls[i].num_channels, master_controls[i].name, comp_store, i == 0, /* release comp_store only once */ &elem); if (err < 0) return err; elem->cache_val[0] = master_controls[i].default_val; elem->cached = 1; } /* add channel controls */ for (i = 0; i < ARRAY_SIZE(channel_controls); i++) { err = add_new_ctl(mixer, channel_controls[i].kcontrol_new, channel_controls[i].control_id, channel_controls[i].type, channel_controls[i].num_channels, channel_controls[i].name, comp_store, false, &elem); if (err < 0) return err; for (j = 0; j < SND_US16X08_MAX_CHANNELS; j++) { elem->cache_val[j] = channel_controls[i].default_val; } elem->cached = 0xffff; } /* create eq store */ eq_store = snd_us16x08_create_eq_store(); if (!eq_store) return -ENOMEM; /* add EQ controls */ for (i = 0; i < ARRAY_SIZE(eq_controls); i++) { 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, eq_store, i == 0, /* release eq_store only once */ NULL); if (err < 0) return err; } /* add compressor controls */ for (i = 0; i < ARRAY_SIZE(comp_controls); 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, false, NULL); if (err < 0) return err; } /* create meters store */ meter_store = snd_us16x08_create_meter_store(); if (!meter_store) return -ENOMEM; /* 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, "Level Meter", meter_store, true, NULL); if (err < 0) return err; } return 0; }

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Detlef Urban53390.03%133.33%
Takashi Iwai599.97%266.67%
Total592100.00%3100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Detlef Urban672296.11%112.50%
Takashi Iwai2693.85%562.50%
Takashi Sakamoto30.04%225.00%
Total6994100.00%8100.00%
Directory: sound/usb
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