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86e07d3465
Modules: USB generic driver Remove xxx_t typedefs from the USB-Audio driver. Signed-off-by: Takashi Iwai <tiwai@suse.de>
1995 lines
52 KiB
C
1995 lines
52 KiB
C
/*
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* (Tentative) USB Audio Driver for ALSA
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*
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* Mixer control part
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*
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* Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
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*
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* Many codes borrowed from audio.c by
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* Alan Cox (alan@lxorguk.ukuu.org.uk)
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* Thomas Sailer (sailer@ife.ee.ethz.ch)
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <sound/driver.h>
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#include <linux/bitops.h>
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#include <linux/init.h>
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#include <linux/list.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/usb.h>
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#include <sound/core.h>
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#include <sound/control.h>
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#include <sound/hwdep.h>
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#include <sound/info.h>
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#include "usbaudio.h"
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/*
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*/
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/* ignore error from controls - for debugging */
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/* #define IGNORE_CTL_ERROR */
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struct usb_mixer_interface {
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struct snd_usb_audio *chip;
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unsigned int ctrlif;
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struct list_head list;
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unsigned int ignore_ctl_error;
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struct urb *urb;
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struct usb_mixer_elem_info **id_elems; /* array[256], indexed by unit id */
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/* Sound Blaster remote control stuff */
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enum {
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RC_NONE,
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RC_EXTIGY,
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RC_AUDIGY2NX,
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} rc_type;
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unsigned long rc_hwdep_open;
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u32 rc_code;
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wait_queue_head_t rc_waitq;
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struct urb *rc_urb;
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struct usb_ctrlrequest *rc_setup_packet;
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u8 rc_buffer[6];
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u8 audigy2nx_leds[3];
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};
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struct usb_audio_term {
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int id;
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int type;
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int channels;
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unsigned int chconfig;
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int name;
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};
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struct usbmix_name_map;
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struct mixer_build {
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struct snd_usb_audio *chip;
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struct usb_mixer_interface *mixer;
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unsigned char *buffer;
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unsigned int buflen;
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DECLARE_BITMAP(unitbitmap, 256);
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struct usb_audio_term oterm;
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const struct usbmix_name_map *map;
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const struct usbmix_selector_map *selector_map;
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};
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struct usb_mixer_elem_info {
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struct usb_mixer_interface *mixer;
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struct usb_mixer_elem_info *next_id_elem; /* list of controls with same id */
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struct snd_ctl_elem_id *elem_id;
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unsigned int id;
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unsigned int control; /* CS or ICN (high byte) */
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unsigned int cmask; /* channel mask bitmap: 0 = master */
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int channels;
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int val_type;
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int min, max, res;
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u8 initialized;
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};
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enum {
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USB_FEATURE_NONE = 0,
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USB_FEATURE_MUTE = 1,
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USB_FEATURE_VOLUME,
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USB_FEATURE_BASS,
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USB_FEATURE_MID,
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USB_FEATURE_TREBLE,
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USB_FEATURE_GEQ,
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USB_FEATURE_AGC,
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USB_FEATURE_DELAY,
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USB_FEATURE_BASSBOOST,
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USB_FEATURE_LOUDNESS
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};
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enum {
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USB_MIXER_BOOLEAN,
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USB_MIXER_INV_BOOLEAN,
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USB_MIXER_S8,
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USB_MIXER_U8,
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USB_MIXER_S16,
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USB_MIXER_U16,
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};
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enum {
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USB_PROC_UPDOWN = 1,
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USB_PROC_UPDOWN_SWITCH = 1,
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USB_PROC_UPDOWN_MODE_SEL = 2,
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USB_PROC_PROLOGIC = 2,
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USB_PROC_PROLOGIC_SWITCH = 1,
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USB_PROC_PROLOGIC_MODE_SEL = 2,
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USB_PROC_3DENH = 3,
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USB_PROC_3DENH_SWITCH = 1,
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USB_PROC_3DENH_SPACE = 2,
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USB_PROC_REVERB = 4,
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USB_PROC_REVERB_SWITCH = 1,
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USB_PROC_REVERB_LEVEL = 2,
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USB_PROC_REVERB_TIME = 3,
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USB_PROC_REVERB_DELAY = 4,
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USB_PROC_CHORUS = 5,
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USB_PROC_CHORUS_SWITCH = 1,
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USB_PROC_CHORUS_LEVEL = 2,
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USB_PROC_CHORUS_RATE = 3,
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USB_PROC_CHORUS_DEPTH = 4,
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USB_PROC_DCR = 6,
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USB_PROC_DCR_SWITCH = 1,
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USB_PROC_DCR_RATIO = 2,
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USB_PROC_DCR_MAX_AMP = 3,
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USB_PROC_DCR_THRESHOLD = 4,
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USB_PROC_DCR_ATTACK = 5,
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USB_PROC_DCR_RELEASE = 6,
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};
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#define MAX_CHANNELS 10 /* max logical channels */
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/*
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* manual mapping of mixer names
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* if the mixer topology is too complicated and the parsed names are
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* ambiguous, add the entries in usbmixer_maps.c.
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*/
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#include "usbmixer_maps.c"
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/* get the mapped name if the unit matches */
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static int check_mapped_name(struct mixer_build *state, int unitid, int control, char *buf, int buflen)
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{
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const struct usbmix_name_map *p;
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if (! state->map)
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return 0;
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for (p = state->map; p->id; p++) {
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if (p->id == unitid && p->name &&
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(! control || ! p->control || control == p->control)) {
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buflen--;
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return strlcpy(buf, p->name, buflen);
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}
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}
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return 0;
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}
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/* check whether the control should be ignored */
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static int check_ignored_ctl(struct mixer_build *state, int unitid, int control)
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{
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const struct usbmix_name_map *p;
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if (! state->map)
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return 0;
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for (p = state->map; p->id; p++) {
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if (p->id == unitid && ! p->name &&
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(! control || ! p->control || control == p->control)) {
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// printk("ignored control %d:%d\n", unitid, control);
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return 1;
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}
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}
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return 0;
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}
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/* get the mapped selector source name */
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static int check_mapped_selector_name(struct mixer_build *state, int unitid,
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int index, char *buf, int buflen)
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{
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const struct usbmix_selector_map *p;
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if (! state->selector_map)
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return 0;
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for (p = state->selector_map; p->id; p++) {
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if (p->id == unitid && index < p->count)
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return strlcpy(buf, p->names[index], buflen);
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}
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return 0;
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}
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/*
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* find an audio control unit with the given unit id
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*/
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static void *find_audio_control_unit(struct mixer_build *state, unsigned char unit)
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{
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unsigned char *p;
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p = NULL;
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while ((p = snd_usb_find_desc(state->buffer, state->buflen, p,
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USB_DT_CS_INTERFACE)) != NULL) {
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if (p[0] >= 4 && p[2] >= INPUT_TERMINAL && p[2] <= EXTENSION_UNIT && p[3] == unit)
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return p;
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}
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return NULL;
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}
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/*
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* copy a string with the given id
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*/
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static int snd_usb_copy_string_desc(struct mixer_build *state, int index, char *buf, int maxlen)
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{
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int len = usb_string(state->chip->dev, index, buf, maxlen - 1);
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buf[len] = 0;
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return len;
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}
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/*
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* convert from the byte/word on usb descriptor to the zero-based integer
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*/
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static int convert_signed_value(struct usb_mixer_elem_info *cval, int val)
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{
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switch (cval->val_type) {
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case USB_MIXER_BOOLEAN:
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return !!val;
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case USB_MIXER_INV_BOOLEAN:
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return !val;
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case USB_MIXER_U8:
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val &= 0xff;
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break;
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case USB_MIXER_S8:
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val &= 0xff;
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if (val >= 0x80)
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val -= 0x100;
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break;
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case USB_MIXER_U16:
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val &= 0xffff;
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break;
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case USB_MIXER_S16:
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val &= 0xffff;
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if (val >= 0x8000)
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val -= 0x10000;
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break;
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}
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return val;
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}
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/*
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* convert from the zero-based int to the byte/word for usb descriptor
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*/
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static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val)
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{
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switch (cval->val_type) {
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case USB_MIXER_BOOLEAN:
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return !!val;
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case USB_MIXER_INV_BOOLEAN:
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return !val;
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case USB_MIXER_S8:
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case USB_MIXER_U8:
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return val & 0xff;
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case USB_MIXER_S16:
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case USB_MIXER_U16:
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return val & 0xffff;
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}
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return 0; /* not reached */
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}
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static int get_relative_value(struct usb_mixer_elem_info *cval, int val)
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{
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if (! cval->res)
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cval->res = 1;
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if (val < cval->min)
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return 0;
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else if (val > cval->max)
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return (cval->max - cval->min) / cval->res;
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else
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return (val - cval->min) / cval->res;
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}
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static int get_abs_value(struct usb_mixer_elem_info *cval, int val)
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{
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if (val < 0)
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return cval->min;
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if (! cval->res)
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cval->res = 1;
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val *= cval->res;
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val += cval->min;
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if (val > cval->max)
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return cval->max;
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return val;
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}
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/*
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* retrieve a mixer value
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*/
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static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret)
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{
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unsigned char buf[2];
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int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1;
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int timeout = 10;
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while (timeout-- > 0) {
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if (snd_usb_ctl_msg(cval->mixer->chip->dev,
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usb_rcvctrlpipe(cval->mixer->chip->dev, 0),
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request,
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USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
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validx, cval->mixer->ctrlif | (cval->id << 8),
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buf, val_len, 100) >= 0) {
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*value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len));
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return 0;
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}
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}
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snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n",
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request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type);
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return -EINVAL;
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}
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static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int *value)
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{
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return get_ctl_value(cval, GET_CUR, validx, value);
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}
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/* channel = 0: master, 1 = first channel */
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static inline int get_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, int *value)
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{
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return get_ctl_value(cval, GET_CUR, (cval->control << 8) | channel, value);
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}
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/*
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* set a mixer value
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*/
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static int set_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int value_set)
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{
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unsigned char buf[2];
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int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1;
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int timeout = 10;
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value_set = convert_bytes_value(cval, value_set);
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buf[0] = value_set & 0xff;
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buf[1] = (value_set >> 8) & 0xff;
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while (timeout -- > 0)
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if (snd_usb_ctl_msg(cval->mixer->chip->dev,
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usb_sndctrlpipe(cval->mixer->chip->dev, 0),
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request,
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USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
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validx, cval->mixer->ctrlif | (cval->id << 8),
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buf, val_len, 100) >= 0)
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return 0;
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snd_printdd(KERN_ERR "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n",
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request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type, buf[0], buf[1]);
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return -EINVAL;
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}
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static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int value)
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{
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return set_ctl_value(cval, SET_CUR, validx, value);
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}
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static inline int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, int value)
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{
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return set_ctl_value(cval, SET_CUR, (cval->control << 8) | channel, value);
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}
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/*
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* parser routines begin here...
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*/
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static int parse_audio_unit(struct mixer_build *state, int unitid);
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/*
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* check if the input/output channel routing is enabled on the given bitmap.
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* used for mixer unit parser
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*/
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static int check_matrix_bitmap(unsigned char *bmap, int ich, int och, int num_outs)
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{
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int idx = ich * num_outs + och;
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return bmap[idx >> 3] & (0x80 >> (idx & 7));
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}
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/*
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* add an alsa control element
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* search and increment the index until an empty slot is found.
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*
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* if failed, give up and free the control instance.
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*/
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static int add_control_to_empty(struct mixer_build *state, struct snd_kcontrol *kctl)
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{
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struct usb_mixer_elem_info *cval = kctl->private_data;
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int err;
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while (snd_ctl_find_id(state->chip->card, &kctl->id))
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kctl->id.index++;
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if ((err = snd_ctl_add(state->chip->card, kctl)) < 0) {
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snd_printd(KERN_ERR "cannot add control (err = %d)\n", err);
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snd_ctl_free_one(kctl);
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return err;
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}
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cval->elem_id = &kctl->id;
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cval->next_id_elem = state->mixer->id_elems[cval->id];
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state->mixer->id_elems[cval->id] = cval;
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return 0;
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}
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/*
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* get a terminal name string
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*/
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static struct iterm_name_combo {
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int type;
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char *name;
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} iterm_names[] = {
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{ 0x0300, "Output" },
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{ 0x0301, "Speaker" },
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{ 0x0302, "Headphone" },
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{ 0x0303, "HMD Audio" },
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{ 0x0304, "Desktop Speaker" },
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{ 0x0305, "Room Speaker" },
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{ 0x0306, "Com Speaker" },
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{ 0x0307, "LFE" },
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{ 0x0600, "External In" },
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{ 0x0601, "Analog In" },
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{ 0x0602, "Digital In" },
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{ 0x0603, "Line" },
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{ 0x0604, "Legacy In" },
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{ 0x0605, "IEC958 In" },
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{ 0x0606, "1394 DA Stream" },
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{ 0x0607, "1394 DV Stream" },
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{ 0x0700, "Embedded" },
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{ 0x0701, "Noise Source" },
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{ 0x0702, "Equalization Noise" },
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{ 0x0703, "CD" },
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{ 0x0704, "DAT" },
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{ 0x0705, "DCC" },
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{ 0x0706, "MiniDisk" },
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{ 0x0707, "Analog Tape" },
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{ 0x0708, "Phonograph" },
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{ 0x0709, "VCR Audio" },
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{ 0x070a, "Video Disk Audio" },
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{ 0x070b, "DVD Audio" },
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{ 0x070c, "TV Tuner Audio" },
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{ 0x070d, "Satellite Rec Audio" },
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{ 0x070e, "Cable Tuner Audio" },
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{ 0x070f, "DSS Audio" },
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{ 0x0710, "Radio Receiver" },
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{ 0x0711, "Radio Transmitter" },
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{ 0x0712, "Multi-Track Recorder" },
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{ 0x0713, "Synthesizer" },
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{ 0 },
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};
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static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm,
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unsigned char *name, int maxlen, int term_only)
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{
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struct iterm_name_combo *names;
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if (iterm->name)
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return snd_usb_copy_string_desc(state, iterm->name, name, maxlen);
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/* virtual type - not a real terminal */
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if (iterm->type >> 16) {
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if (term_only)
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return 0;
|
|
switch (iterm->type >> 16) {
|
|
case SELECTOR_UNIT:
|
|
strcpy(name, "Selector"); return 8;
|
|
case PROCESSING_UNIT:
|
|
strcpy(name, "Process Unit"); return 12;
|
|
case EXTENSION_UNIT:
|
|
strcpy(name, "Ext Unit"); return 8;
|
|
case MIXER_UNIT:
|
|
strcpy(name, "Mixer"); return 5;
|
|
default:
|
|
return sprintf(name, "Unit %d", iterm->id);
|
|
}
|
|
}
|
|
|
|
switch (iterm->type & 0xff00) {
|
|
case 0x0100:
|
|
strcpy(name, "PCM"); return 3;
|
|
case 0x0200:
|
|
strcpy(name, "Mic"); return 3;
|
|
case 0x0400:
|
|
strcpy(name, "Headset"); return 7;
|
|
case 0x0500:
|
|
strcpy(name, "Phone"); return 5;
|
|
}
|
|
|
|
for (names = iterm_names; names->type; names++)
|
|
if (names->type == iterm->type) {
|
|
strcpy(name, names->name);
|
|
return strlen(names->name);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* parse the source unit recursively until it reaches to a terminal
|
|
* or a branched unit.
|
|
*/
|
|
static int check_input_term(struct mixer_build *state, int id, struct usb_audio_term *term)
|
|
{
|
|
unsigned char *p1;
|
|
|
|
memset(term, 0, sizeof(*term));
|
|
while ((p1 = find_audio_control_unit(state, id)) != NULL) {
|
|
term->id = id;
|
|
switch (p1[2]) {
|
|
case INPUT_TERMINAL:
|
|
term->type = combine_word(p1 + 4);
|
|
term->channels = p1[7];
|
|
term->chconfig = combine_word(p1 + 8);
|
|
term->name = p1[11];
|
|
return 0;
|
|
case FEATURE_UNIT:
|
|
id = p1[4];
|
|
break; /* continue to parse */
|
|
case MIXER_UNIT:
|
|
term->type = p1[2] << 16; /* virtual type */
|
|
term->channels = p1[5 + p1[4]];
|
|
term->chconfig = combine_word(p1 + 6 + p1[4]);
|
|
term->name = p1[p1[0] - 1];
|
|
return 0;
|
|
case SELECTOR_UNIT:
|
|
/* call recursively to retrieve the channel info */
|
|
if (check_input_term(state, p1[5], term) < 0)
|
|
return -ENODEV;
|
|
term->type = p1[2] << 16; /* virtual type */
|
|
term->id = id;
|
|
term->name = p1[9 + p1[0] - 1];
|
|
return 0;
|
|
case PROCESSING_UNIT:
|
|
case EXTENSION_UNIT:
|
|
if (p1[6] == 1) {
|
|
id = p1[7];
|
|
break; /* continue to parse */
|
|
}
|
|
term->type = p1[2] << 16; /* virtual type */
|
|
term->channels = p1[7 + p1[6]];
|
|
term->chconfig = combine_word(p1 + 8 + p1[6]);
|
|
term->name = p1[12 + p1[6] + p1[11 + p1[6]]];
|
|
return 0;
|
|
default:
|
|
return -ENODEV;
|
|
}
|
|
}
|
|
return -ENODEV;
|
|
}
|
|
|
|
|
|
/*
|
|
* Feature Unit
|
|
*/
|
|
|
|
/* feature unit control information */
|
|
struct usb_feature_control_info {
|
|
const char *name;
|
|
unsigned int type; /* control type (mute, volume, etc.) */
|
|
};
|
|
|
|
static struct usb_feature_control_info audio_feature_info[] = {
|
|
{ "Mute", USB_MIXER_INV_BOOLEAN },
|
|
{ "Volume", USB_MIXER_S16 },
|
|
{ "Tone Control - Bass", USB_MIXER_S8 },
|
|
{ "Tone Control - Mid", USB_MIXER_S8 },
|
|
{ "Tone Control - Treble", USB_MIXER_S8 },
|
|
{ "Graphic Equalizer", USB_MIXER_S8 }, /* FIXME: not implemeted yet */
|
|
{ "Auto Gain Control", USB_MIXER_BOOLEAN },
|
|
{ "Delay Control", USB_MIXER_U16 },
|
|
{ "Bass Boost", USB_MIXER_BOOLEAN },
|
|
{ "Loudness", USB_MIXER_BOOLEAN },
|
|
};
|
|
|
|
|
|
/* private_free callback */
|
|
static void usb_mixer_elem_free(struct snd_kcontrol *kctl)
|
|
{
|
|
kfree(kctl->private_data);
|
|
kctl->private_data = NULL;
|
|
}
|
|
|
|
|
|
/*
|
|
* interface to ALSA control for feature/mixer units
|
|
*/
|
|
|
|
/*
|
|
* retrieve the minimum and maximum values for the specified control
|
|
*/
|
|
static int get_min_max(struct usb_mixer_elem_info *cval, int default_min)
|
|
{
|
|
/* for failsafe */
|
|
cval->min = default_min;
|
|
cval->max = cval->min + 1;
|
|
cval->res = 1;
|
|
|
|
if (cval->val_type == USB_MIXER_BOOLEAN ||
|
|
cval->val_type == USB_MIXER_INV_BOOLEAN) {
|
|
cval->initialized = 1;
|
|
} else {
|
|
int minchn = 0;
|
|
if (cval->cmask) {
|
|
int i;
|
|
for (i = 0; i < MAX_CHANNELS; i++)
|
|
if (cval->cmask & (1 << i)) {
|
|
minchn = i + 1;
|
|
break;
|
|
}
|
|
}
|
|
if (get_ctl_value(cval, GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 ||
|
|
get_ctl_value(cval, GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) {
|
|
snd_printd(KERN_ERR "%d:%d: cannot get min/max values for control %d (id %d)\n",
|
|
cval->id, cval->mixer->ctrlif, cval->control, cval->id);
|
|
return -EINVAL;
|
|
}
|
|
if (get_ctl_value(cval, GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) {
|
|
cval->res = 1;
|
|
} else {
|
|
int last_valid_res = cval->res;
|
|
|
|
while (cval->res > 1) {
|
|
if (set_ctl_value(cval, SET_RES, (cval->control << 8) | minchn, cval->res / 2) < 0)
|
|
break;
|
|
cval->res /= 2;
|
|
}
|
|
if (get_ctl_value(cval, GET_RES, (cval->control << 8) | minchn, &cval->res) < 0)
|
|
cval->res = last_valid_res;
|
|
}
|
|
if (cval->res == 0)
|
|
cval->res = 1;
|
|
cval->initialized = 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* get a feature/mixer unit info */
|
|
static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
|
|
{
|
|
struct usb_mixer_elem_info *cval = kcontrol->private_data;
|
|
|
|
if (cval->val_type == USB_MIXER_BOOLEAN ||
|
|
cval->val_type == USB_MIXER_INV_BOOLEAN)
|
|
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
|
|
else
|
|
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
|
|
uinfo->count = cval->channels;
|
|
if (cval->val_type == USB_MIXER_BOOLEAN ||
|
|
cval->val_type == USB_MIXER_INV_BOOLEAN) {
|
|
uinfo->value.integer.min = 0;
|
|
uinfo->value.integer.max = 1;
|
|
} else {
|
|
if (! cval->initialized)
|
|
get_min_max(cval, 0);
|
|
uinfo->value.integer.min = 0;
|
|
uinfo->value.integer.max = (cval->max - cval->min) / cval->res;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* get the current value from feature/mixer unit */
|
|
static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct usb_mixer_elem_info *cval = kcontrol->private_data;
|
|
int c, cnt, val, err;
|
|
|
|
if (cval->cmask) {
|
|
cnt = 0;
|
|
for (c = 0; c < MAX_CHANNELS; c++) {
|
|
if (cval->cmask & (1 << c)) {
|
|
err = get_cur_mix_value(cval, c + 1, &val);
|
|
if (err < 0) {
|
|
if (cval->mixer->ignore_ctl_error) {
|
|
ucontrol->value.integer.value[0] = cval->min;
|
|
return 0;
|
|
}
|
|
snd_printd(KERN_ERR "cannot get current value for control %d ch %d: err = %d\n", cval->control, c + 1, err);
|
|
return err;
|
|
}
|
|
val = get_relative_value(cval, val);
|
|
ucontrol->value.integer.value[cnt] = val;
|
|
cnt++;
|
|
}
|
|
}
|
|
} else {
|
|
/* master channel */
|
|
err = get_cur_mix_value(cval, 0, &val);
|
|
if (err < 0) {
|
|
if (cval->mixer->ignore_ctl_error) {
|
|
ucontrol->value.integer.value[0] = cval->min;
|
|
return 0;
|
|
}
|
|
snd_printd(KERN_ERR "cannot get current value for control %d master ch: err = %d\n", cval->control, err);
|
|
return err;
|
|
}
|
|
val = get_relative_value(cval, val);
|
|
ucontrol->value.integer.value[0] = val;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* put the current value to feature/mixer unit */
|
|
static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct usb_mixer_elem_info *cval = kcontrol->private_data;
|
|
int c, cnt, val, oval, err;
|
|
int changed = 0;
|
|
|
|
if (cval->cmask) {
|
|
cnt = 0;
|
|
for (c = 0; c < MAX_CHANNELS; c++) {
|
|
if (cval->cmask & (1 << c)) {
|
|
err = get_cur_mix_value(cval, c + 1, &oval);
|
|
if (err < 0) {
|
|
if (cval->mixer->ignore_ctl_error)
|
|
return 0;
|
|
return err;
|
|
}
|
|
val = ucontrol->value.integer.value[cnt];
|
|
val = get_abs_value(cval, val);
|
|
if (oval != val) {
|
|
set_cur_mix_value(cval, c + 1, val);
|
|
changed = 1;
|
|
}
|
|
get_cur_mix_value(cval, c + 1, &val);
|
|
cnt++;
|
|
}
|
|
}
|
|
} else {
|
|
/* master channel */
|
|
err = get_cur_mix_value(cval, 0, &oval);
|
|
if (err < 0 && cval->mixer->ignore_ctl_error)
|
|
return 0;
|
|
if (err < 0)
|
|
return err;
|
|
val = ucontrol->value.integer.value[0];
|
|
val = get_abs_value(cval, val);
|
|
if (val != oval) {
|
|
set_cur_mix_value(cval, 0, val);
|
|
changed = 1;
|
|
}
|
|
}
|
|
return changed;
|
|
}
|
|
|
|
static struct snd_kcontrol_new usb_feature_unit_ctl = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "", /* will be filled later manually */
|
|
.info = mixer_ctl_feature_info,
|
|
.get = mixer_ctl_feature_get,
|
|
.put = mixer_ctl_feature_put,
|
|
};
|
|
|
|
|
|
/*
|
|
* build a feature control
|
|
*/
|
|
|
|
static void build_feature_ctl(struct mixer_build *state, unsigned char *desc,
|
|
unsigned int ctl_mask, int control,
|
|
struct usb_audio_term *iterm, int unitid)
|
|
{
|
|
unsigned int len = 0;
|
|
int mapped_name = 0;
|
|
int nameid = desc[desc[0] - 1];
|
|
struct snd_kcontrol *kctl;
|
|
struct usb_mixer_elem_info *cval;
|
|
|
|
control++; /* change from zero-based to 1-based value */
|
|
|
|
if (control == USB_FEATURE_GEQ) {
|
|
/* FIXME: not supported yet */
|
|
return;
|
|
}
|
|
|
|
if (check_ignored_ctl(state, unitid, control))
|
|
return;
|
|
|
|
cval = kzalloc(sizeof(*cval), GFP_KERNEL);
|
|
if (! cval) {
|
|
snd_printk(KERN_ERR "cannot malloc kcontrol\n");
|
|
return;
|
|
}
|
|
cval->mixer = state->mixer;
|
|
cval->id = unitid;
|
|
cval->control = control;
|
|
cval->cmask = ctl_mask;
|
|
cval->val_type = audio_feature_info[control-1].type;
|
|
if (ctl_mask == 0)
|
|
cval->channels = 1; /* master channel */
|
|
else {
|
|
int i, c = 0;
|
|
for (i = 0; i < 16; i++)
|
|
if (ctl_mask & (1 << i))
|
|
c++;
|
|
cval->channels = c;
|
|
}
|
|
|
|
/* get min/max values */
|
|
get_min_max(cval, 0);
|
|
|
|
kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval);
|
|
if (! kctl) {
|
|
snd_printk(KERN_ERR "cannot malloc kcontrol\n");
|
|
kfree(cval);
|
|
return;
|
|
}
|
|
kctl->private_free = usb_mixer_elem_free;
|
|
|
|
len = check_mapped_name(state, unitid, control, kctl->id.name, sizeof(kctl->id.name));
|
|
mapped_name = len != 0;
|
|
if (! len && nameid)
|
|
len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name));
|
|
|
|
switch (control) {
|
|
case USB_FEATURE_MUTE:
|
|
case USB_FEATURE_VOLUME:
|
|
/* determine the control name. the rule is:
|
|
* - if a name id is given in descriptor, use it.
|
|
* - if the connected input can be determined, then use the name
|
|
* of terminal type.
|
|
* - if the connected output can be determined, use it.
|
|
* - otherwise, anonymous name.
|
|
*/
|
|
if (! len) {
|
|
len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 1);
|
|
if (! len)
|
|
len = get_term_name(state, &state->oterm, kctl->id.name, sizeof(kctl->id.name), 1);
|
|
if (! len)
|
|
len = snprintf(kctl->id.name, sizeof(kctl->id.name),
|
|
"Feature %d", unitid);
|
|
}
|
|
/* determine the stream direction:
|
|
* if the connected output is USB stream, then it's likely a
|
|
* capture stream. otherwise it should be playback (hopefully :)
|
|
*/
|
|
if (! mapped_name && ! (state->oterm.type >> 16)) {
|
|
if ((state->oterm.type & 0xff00) == 0x0100) {
|
|
len = strlcat(kctl->id.name, " Capture", sizeof(kctl->id.name));
|
|
} else {
|
|
len = strlcat(kctl->id.name + len, " Playback", sizeof(kctl->id.name));
|
|
}
|
|
}
|
|
strlcat(kctl->id.name + len, control == USB_FEATURE_MUTE ? " Switch" : " Volume",
|
|
sizeof(kctl->id.name));
|
|
break;
|
|
|
|
default:
|
|
if (! len)
|
|
strlcpy(kctl->id.name, audio_feature_info[control-1].name,
|
|
sizeof(kctl->id.name));
|
|
break;
|
|
}
|
|
|
|
/* quirk for UDA1321/N101 */
|
|
/* note that detection between firmware 2.1.1.7 (N101) and later 2.1.1.21 */
|
|
/* is not very clear from datasheets */
|
|
/* I hope that the min value is -15360 for newer firmware --jk */
|
|
switch (state->chip->usb_id) {
|
|
case USB_ID(0x0471, 0x0101):
|
|
case USB_ID(0x0471, 0x0104):
|
|
case USB_ID(0x0471, 0x0105):
|
|
case USB_ID(0x0672, 0x1041):
|
|
if (!strcmp(kctl->id.name, "PCM Playback Volume") &&
|
|
cval->min == -15616) {
|
|
snd_printk(KERN_INFO "using volume control quirk for the UDA1321/N101 chip\n");
|
|
cval->max = -256;
|
|
}
|
|
}
|
|
|
|
snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n",
|
|
cval->id, kctl->id.name, cval->channels, cval->min, cval->max, cval->res);
|
|
add_control_to_empty(state, kctl);
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* parse a feature unit
|
|
*
|
|
* most of controlls are defined here.
|
|
*/
|
|
static int parse_audio_feature_unit(struct mixer_build *state, int unitid, unsigned char *ftr)
|
|
{
|
|
int channels, i, j;
|
|
struct usb_audio_term iterm;
|
|
unsigned int master_bits, first_ch_bits;
|
|
int err, csize;
|
|
|
|
if (ftr[0] < 7 || ! (csize = ftr[5]) || ftr[0] < 7 + csize) {
|
|
snd_printk(KERN_ERR "usbaudio: unit %u: invalid FEATURE_UNIT descriptor\n", unitid);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* parse the source unit */
|
|
if ((err = parse_audio_unit(state, ftr[4])) < 0)
|
|
return err;
|
|
|
|
/* determine the input source type and name */
|
|
if (check_input_term(state, ftr[4], &iterm) < 0)
|
|
return -EINVAL;
|
|
|
|
channels = (ftr[0] - 7) / csize - 1;
|
|
|
|
master_bits = snd_usb_combine_bytes(ftr + 6, csize);
|
|
if (channels > 0)
|
|
first_ch_bits = snd_usb_combine_bytes(ftr + 6 + csize, csize);
|
|
else
|
|
first_ch_bits = 0;
|
|
/* check all control types */
|
|
for (i = 0; i < 10; i++) {
|
|
unsigned int ch_bits = 0;
|
|
for (j = 0; j < channels; j++) {
|
|
unsigned int mask = snd_usb_combine_bytes(ftr + 6 + csize * (j+1), csize);
|
|
if (mask & (1 << i))
|
|
ch_bits |= (1 << j);
|
|
}
|
|
if (ch_bits & 1) /* the first channel must be set (for ease of programming) */
|
|
build_feature_ctl(state, ftr, ch_bits, i, &iterm, unitid);
|
|
if (master_bits & (1 << i))
|
|
build_feature_ctl(state, ftr, 0, i, &iterm, unitid);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* Mixer Unit
|
|
*/
|
|
|
|
/*
|
|
* build a mixer unit control
|
|
*
|
|
* the callbacks are identical with feature unit.
|
|
* input channel number (zero based) is given in control field instead.
|
|
*/
|
|
|
|
static void build_mixer_unit_ctl(struct mixer_build *state, unsigned char *desc,
|
|
int in_pin, int in_ch, int unitid,
|
|
struct usb_audio_term *iterm)
|
|
{
|
|
struct usb_mixer_elem_info *cval;
|
|
unsigned int input_pins = desc[4];
|
|
unsigned int num_outs = desc[5 + input_pins];
|
|
unsigned int i, len;
|
|
struct snd_kcontrol *kctl;
|
|
|
|
if (check_ignored_ctl(state, unitid, 0))
|
|
return;
|
|
|
|
cval = kzalloc(sizeof(*cval), GFP_KERNEL);
|
|
if (! cval)
|
|
return;
|
|
|
|
cval->mixer = state->mixer;
|
|
cval->id = unitid;
|
|
cval->control = in_ch + 1; /* based on 1 */
|
|
cval->val_type = USB_MIXER_S16;
|
|
for (i = 0; i < num_outs; i++) {
|
|
if (check_matrix_bitmap(desc + 9 + input_pins, in_ch, i, num_outs)) {
|
|
cval->cmask |= (1 << i);
|
|
cval->channels++;
|
|
}
|
|
}
|
|
|
|
/* get min/max values */
|
|
get_min_max(cval, 0);
|
|
|
|
kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval);
|
|
if (! kctl) {
|
|
snd_printk(KERN_ERR "cannot malloc kcontrol\n");
|
|
kfree(cval);
|
|
return;
|
|
}
|
|
kctl->private_free = usb_mixer_elem_free;
|
|
|
|
len = check_mapped_name(state, unitid, 0, kctl->id.name, sizeof(kctl->id.name));
|
|
if (! len)
|
|
len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 0);
|
|
if (! len)
|
|
len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1);
|
|
strlcat(kctl->id.name + len, " Volume", sizeof(kctl->id.name));
|
|
|
|
snd_printdd(KERN_INFO "[%d] MU [%s] ch = %d, val = %d/%d\n",
|
|
cval->id, kctl->id.name, cval->channels, cval->min, cval->max);
|
|
add_control_to_empty(state, kctl);
|
|
}
|
|
|
|
|
|
/*
|
|
* parse a mixer unit
|
|
*/
|
|
static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, unsigned char *desc)
|
|
{
|
|
struct usb_audio_term iterm;
|
|
int input_pins, num_ins, num_outs;
|
|
int pin, ich, err;
|
|
|
|
if (desc[0] < 11 || ! (input_pins = desc[4]) || ! (num_outs = desc[5 + input_pins])) {
|
|
snd_printk(KERN_ERR "invalid MIXER UNIT descriptor %d\n", unitid);
|
|
return -EINVAL;
|
|
}
|
|
/* no bmControls field (e.g. Maya44) -> ignore */
|
|
if (desc[0] <= 10 + input_pins) {
|
|
snd_printdd(KERN_INFO "MU %d has no bmControls field\n", unitid);
|
|
return 0;
|
|
}
|
|
|
|
num_ins = 0;
|
|
ich = 0;
|
|
for (pin = 0; pin < input_pins; pin++) {
|
|
err = parse_audio_unit(state, desc[5 + pin]);
|
|
if (err < 0)
|
|
return err;
|
|
err = check_input_term(state, desc[5 + pin], &iterm);
|
|
if (err < 0)
|
|
return err;
|
|
num_ins += iterm.channels;
|
|
for (; ich < num_ins; ++ich) {
|
|
int och, ich_has_controls = 0;
|
|
|
|
for (och = 0; och < num_outs; ++och) {
|
|
if (check_matrix_bitmap(desc + 9 + input_pins,
|
|
ich, och, num_outs)) {
|
|
ich_has_controls = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (ich_has_controls)
|
|
build_mixer_unit_ctl(state, desc, pin, ich,
|
|
unitid, &iterm);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* Processing Unit / Extension Unit
|
|
*/
|
|
|
|
/* get callback for processing/extension unit */
|
|
static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct usb_mixer_elem_info *cval = kcontrol->private_data;
|
|
int err, val;
|
|
|
|
err = get_cur_ctl_value(cval, cval->control << 8, &val);
|
|
if (err < 0 && cval->mixer->ignore_ctl_error) {
|
|
ucontrol->value.integer.value[0] = cval->min;
|
|
return 0;
|
|
}
|
|
if (err < 0)
|
|
return err;
|
|
val = get_relative_value(cval, val);
|
|
ucontrol->value.integer.value[0] = val;
|
|
return 0;
|
|
}
|
|
|
|
/* put callback for processing/extension unit */
|
|
static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct usb_mixer_elem_info *cval = kcontrol->private_data;
|
|
int val, oval, err;
|
|
|
|
err = get_cur_ctl_value(cval, cval->control << 8, &oval);
|
|
if (err < 0) {
|
|
if (cval->mixer->ignore_ctl_error)
|
|
return 0;
|
|
return err;
|
|
}
|
|
val = ucontrol->value.integer.value[0];
|
|
val = get_abs_value(cval, val);
|
|
if (val != oval) {
|
|
set_cur_ctl_value(cval, cval->control << 8, val);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* alsa control interface for processing/extension unit */
|
|
static struct snd_kcontrol_new mixer_procunit_ctl = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "", /* will be filled later */
|
|
.info = mixer_ctl_feature_info,
|
|
.get = mixer_ctl_procunit_get,
|
|
.put = mixer_ctl_procunit_put,
|
|
};
|
|
|
|
|
|
/*
|
|
* predefined data for processing units
|
|
*/
|
|
struct procunit_value_info {
|
|
int control;
|
|
char *suffix;
|
|
int val_type;
|
|
int min_value;
|
|
};
|
|
|
|
struct procunit_info {
|
|
int type;
|
|
char *name;
|
|
struct procunit_value_info *values;
|
|
};
|
|
|
|
static struct procunit_value_info updown_proc_info[] = {
|
|
{ USB_PROC_UPDOWN_SWITCH, "Switch", USB_MIXER_BOOLEAN },
|
|
{ USB_PROC_UPDOWN_MODE_SEL, "Mode Select", USB_MIXER_U8, 1 },
|
|
{ 0 }
|
|
};
|
|
static struct procunit_value_info prologic_proc_info[] = {
|
|
{ USB_PROC_PROLOGIC_SWITCH, "Switch", USB_MIXER_BOOLEAN },
|
|
{ USB_PROC_PROLOGIC_MODE_SEL, "Mode Select", USB_MIXER_U8, 1 },
|
|
{ 0 }
|
|
};
|
|
static struct procunit_value_info threed_enh_proc_info[] = {
|
|
{ USB_PROC_3DENH_SWITCH, "Switch", USB_MIXER_BOOLEAN },
|
|
{ USB_PROC_3DENH_SPACE, "Spaciousness", USB_MIXER_U8 },
|
|
{ 0 }
|
|
};
|
|
static struct procunit_value_info reverb_proc_info[] = {
|
|
{ USB_PROC_REVERB_SWITCH, "Switch", USB_MIXER_BOOLEAN },
|
|
{ USB_PROC_REVERB_LEVEL, "Level", USB_MIXER_U8 },
|
|
{ USB_PROC_REVERB_TIME, "Time", USB_MIXER_U16 },
|
|
{ USB_PROC_REVERB_DELAY, "Delay", USB_MIXER_U8 },
|
|
{ 0 }
|
|
};
|
|
static struct procunit_value_info chorus_proc_info[] = {
|
|
{ USB_PROC_CHORUS_SWITCH, "Switch", USB_MIXER_BOOLEAN },
|
|
{ USB_PROC_CHORUS_LEVEL, "Level", USB_MIXER_U8 },
|
|
{ USB_PROC_CHORUS_RATE, "Rate", USB_MIXER_U16 },
|
|
{ USB_PROC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 },
|
|
{ 0 }
|
|
};
|
|
static struct procunit_value_info dcr_proc_info[] = {
|
|
{ USB_PROC_DCR_SWITCH, "Switch", USB_MIXER_BOOLEAN },
|
|
{ USB_PROC_DCR_RATIO, "Ratio", USB_MIXER_U16 },
|
|
{ USB_PROC_DCR_MAX_AMP, "Max Amp", USB_MIXER_S16 },
|
|
{ USB_PROC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 },
|
|
{ USB_PROC_DCR_ATTACK, "Attack Time", USB_MIXER_U16 },
|
|
{ USB_PROC_DCR_RELEASE, "Release Time", USB_MIXER_U16 },
|
|
{ 0 }
|
|
};
|
|
|
|
static struct procunit_info procunits[] = {
|
|
{ USB_PROC_UPDOWN, "Up Down", updown_proc_info },
|
|
{ USB_PROC_PROLOGIC, "Dolby Prologic", prologic_proc_info },
|
|
{ USB_PROC_3DENH, "3D Stereo Extender", threed_enh_proc_info },
|
|
{ USB_PROC_REVERB, "Reverb", reverb_proc_info },
|
|
{ USB_PROC_CHORUS, "Chorus", chorus_proc_info },
|
|
{ USB_PROC_DCR, "DCR", dcr_proc_info },
|
|
{ 0 },
|
|
};
|
|
|
|
/*
|
|
* build a processing/extension unit
|
|
*/
|
|
static int build_audio_procunit(struct mixer_build *state, int unitid, unsigned char *dsc, struct procunit_info *list, char *name)
|
|
{
|
|
int num_ins = dsc[6];
|
|
struct usb_mixer_elem_info *cval;
|
|
struct snd_kcontrol *kctl;
|
|
int i, err, nameid, type, len;
|
|
struct procunit_info *info;
|
|
struct procunit_value_info *valinfo;
|
|
static struct procunit_value_info default_value_info[] = {
|
|
{ 0x01, "Switch", USB_MIXER_BOOLEAN },
|
|
{ 0 }
|
|
};
|
|
static struct procunit_info default_info = {
|
|
0, NULL, default_value_info
|
|
};
|
|
|
|
if (dsc[0] < 13 || dsc[0] < 13 + num_ins || dsc[0] < num_ins + dsc[11 + num_ins]) {
|
|
snd_printk(KERN_ERR "invalid %s descriptor (id %d)\n", name, unitid);
|
|
return -EINVAL;
|
|
}
|
|
|
|
for (i = 0; i < num_ins; i++) {
|
|
if ((err = parse_audio_unit(state, dsc[7 + i])) < 0)
|
|
return err;
|
|
}
|
|
|
|
type = combine_word(&dsc[4]);
|
|
for (info = list; info && info->type; info++)
|
|
if (info->type == type)
|
|
break;
|
|
if (! info || ! info->type)
|
|
info = &default_info;
|
|
|
|
for (valinfo = info->values; valinfo->control; valinfo++) {
|
|
/* FIXME: bitmap might be longer than 8bit */
|
|
if (! (dsc[12 + num_ins] & (1 << (valinfo->control - 1))))
|
|
continue;
|
|
if (check_ignored_ctl(state, unitid, valinfo->control))
|
|
continue;
|
|
cval = kzalloc(sizeof(*cval), GFP_KERNEL);
|
|
if (! cval) {
|
|
snd_printk(KERN_ERR "cannot malloc kcontrol\n");
|
|
return -ENOMEM;
|
|
}
|
|
cval->mixer = state->mixer;
|
|
cval->id = unitid;
|
|
cval->control = valinfo->control;
|
|
cval->val_type = valinfo->val_type;
|
|
cval->channels = 1;
|
|
|
|
/* get min/max values */
|
|
if (type == USB_PROC_UPDOWN && cval->control == USB_PROC_UPDOWN_MODE_SEL) {
|
|
/* FIXME: hard-coded */
|
|
cval->min = 1;
|
|
cval->max = dsc[15];
|
|
cval->res = 1;
|
|
cval->initialized = 1;
|
|
} else
|
|
get_min_max(cval, valinfo->min_value);
|
|
|
|
kctl = snd_ctl_new1(&mixer_procunit_ctl, cval);
|
|
if (! kctl) {
|
|
snd_printk(KERN_ERR "cannot malloc kcontrol\n");
|
|
kfree(cval);
|
|
return -ENOMEM;
|
|
}
|
|
kctl->private_free = usb_mixer_elem_free;
|
|
|
|
if (check_mapped_name(state, unitid, cval->control, kctl->id.name, sizeof(kctl->id.name)))
|
|
;
|
|
else if (info->name)
|
|
strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name));
|
|
else {
|
|
nameid = dsc[12 + num_ins + dsc[11 + num_ins]];
|
|
len = 0;
|
|
if (nameid)
|
|
len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name));
|
|
if (! len)
|
|
strlcpy(kctl->id.name, name, sizeof(kctl->id.name));
|
|
}
|
|
strlcat(kctl->id.name, " ", sizeof(kctl->id.name));
|
|
strlcat(kctl->id.name, valinfo->suffix, sizeof(kctl->id.name));
|
|
|
|
snd_printdd(KERN_INFO "[%d] PU [%s] ch = %d, val = %d/%d\n",
|
|
cval->id, kctl->id.name, cval->channels, cval->min, cval->max);
|
|
if ((err = add_control_to_empty(state, kctl)) < 0)
|
|
return err;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int parse_audio_processing_unit(struct mixer_build *state, int unitid, unsigned char *desc)
|
|
{
|
|
return build_audio_procunit(state, unitid, desc, procunits, "Processing Unit");
|
|
}
|
|
|
|
static int parse_audio_extension_unit(struct mixer_build *state, int unitid, unsigned char *desc)
|
|
{
|
|
return build_audio_procunit(state, unitid, desc, NULL, "Extension Unit");
|
|
}
|
|
|
|
|
|
/*
|
|
* Selector Unit
|
|
*/
|
|
|
|
/* info callback for selector unit
|
|
* use an enumerator type for routing
|
|
*/
|
|
static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
|
|
{
|
|
struct usb_mixer_elem_info *cval = kcontrol->private_data;
|
|
char **itemlist = (char **)kcontrol->private_value;
|
|
|
|
snd_assert(itemlist, return -EINVAL);
|
|
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
|
|
uinfo->count = 1;
|
|
uinfo->value.enumerated.items = cval->max;
|
|
if ((int)uinfo->value.enumerated.item >= cval->max)
|
|
uinfo->value.enumerated.item = cval->max - 1;
|
|
strcpy(uinfo->value.enumerated.name, itemlist[uinfo->value.enumerated.item]);
|
|
return 0;
|
|
}
|
|
|
|
/* get callback for selector unit */
|
|
static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct usb_mixer_elem_info *cval = kcontrol->private_data;
|
|
int val, err;
|
|
|
|
err = get_cur_ctl_value(cval, 0, &val);
|
|
if (err < 0) {
|
|
if (cval->mixer->ignore_ctl_error) {
|
|
ucontrol->value.enumerated.item[0] = 0;
|
|
return 0;
|
|
}
|
|
return err;
|
|
}
|
|
val = get_relative_value(cval, val);
|
|
ucontrol->value.enumerated.item[0] = val;
|
|
return 0;
|
|
}
|
|
|
|
/* put callback for selector unit */
|
|
static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct usb_mixer_elem_info *cval = kcontrol->private_data;
|
|
int val, oval, err;
|
|
|
|
err = get_cur_ctl_value(cval, 0, &oval);
|
|
if (err < 0) {
|
|
if (cval->mixer->ignore_ctl_error)
|
|
return 0;
|
|
return err;
|
|
}
|
|
val = ucontrol->value.enumerated.item[0];
|
|
val = get_abs_value(cval, val);
|
|
if (val != oval) {
|
|
set_cur_ctl_value(cval, 0, val);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* alsa control interface for selector unit */
|
|
static struct snd_kcontrol_new mixer_selectunit_ctl = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "", /* will be filled later */
|
|
.info = mixer_ctl_selector_info,
|
|
.get = mixer_ctl_selector_get,
|
|
.put = mixer_ctl_selector_put,
|
|
};
|
|
|
|
|
|
/* private free callback.
|
|
* free both private_data and private_value
|
|
*/
|
|
static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl)
|
|
{
|
|
int i, num_ins = 0;
|
|
|
|
if (kctl->private_data) {
|
|
struct usb_mixer_elem_info *cval = kctl->private_data;
|
|
num_ins = cval->max;
|
|
kfree(cval);
|
|
kctl->private_data = NULL;
|
|
}
|
|
if (kctl->private_value) {
|
|
char **itemlist = (char **)kctl->private_value;
|
|
for (i = 0; i < num_ins; i++)
|
|
kfree(itemlist[i]);
|
|
kfree(itemlist);
|
|
kctl->private_value = 0;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* parse a selector unit
|
|
*/
|
|
static int parse_audio_selector_unit(struct mixer_build *state, int unitid, unsigned char *desc)
|
|
{
|
|
unsigned int num_ins = desc[4];
|
|
unsigned int i, nameid, len;
|
|
int err;
|
|
struct usb_mixer_elem_info *cval;
|
|
struct snd_kcontrol *kctl;
|
|
char **namelist;
|
|
|
|
if (! num_ins || desc[0] < 6 + num_ins) {
|
|
snd_printk(KERN_ERR "invalid SELECTOR UNIT descriptor %d\n", unitid);
|
|
return -EINVAL;
|
|
}
|
|
|
|
for (i = 0; i < num_ins; i++) {
|
|
if ((err = parse_audio_unit(state, desc[5 + i])) < 0)
|
|
return err;
|
|
}
|
|
|
|
if (num_ins == 1) /* only one ? nonsense! */
|
|
return 0;
|
|
|
|
if (check_ignored_ctl(state, unitid, 0))
|
|
return 0;
|
|
|
|
cval = kzalloc(sizeof(*cval), GFP_KERNEL);
|
|
if (! cval) {
|
|
snd_printk(KERN_ERR "cannot malloc kcontrol\n");
|
|
return -ENOMEM;
|
|
}
|
|
cval->mixer = state->mixer;
|
|
cval->id = unitid;
|
|
cval->val_type = USB_MIXER_U8;
|
|
cval->channels = 1;
|
|
cval->min = 1;
|
|
cval->max = num_ins;
|
|
cval->res = 1;
|
|
cval->initialized = 1;
|
|
|
|
namelist = kmalloc(sizeof(char *) * num_ins, GFP_KERNEL);
|
|
if (! namelist) {
|
|
snd_printk(KERN_ERR "cannot malloc\n");
|
|
kfree(cval);
|
|
return -ENOMEM;
|
|
}
|
|
#define MAX_ITEM_NAME_LEN 64
|
|
for (i = 0; i < num_ins; i++) {
|
|
struct usb_audio_term iterm;
|
|
len = 0;
|
|
namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL);
|
|
if (! namelist[i]) {
|
|
snd_printk(KERN_ERR "cannot malloc\n");
|
|
while (--i > 0)
|
|
kfree(namelist[i]);
|
|
kfree(namelist);
|
|
kfree(cval);
|
|
return -ENOMEM;
|
|
}
|
|
len = check_mapped_selector_name(state, unitid, i, namelist[i],
|
|
MAX_ITEM_NAME_LEN);
|
|
if (! len && check_input_term(state, desc[5 + i], &iterm) >= 0)
|
|
len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0);
|
|
if (! len)
|
|
sprintf(namelist[i], "Input %d", i);
|
|
}
|
|
|
|
kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval);
|
|
if (! kctl) {
|
|
snd_printk(KERN_ERR "cannot malloc kcontrol\n");
|
|
kfree(cval);
|
|
return -ENOMEM;
|
|
}
|
|
kctl->private_value = (unsigned long)namelist;
|
|
kctl->private_free = usb_mixer_selector_elem_free;
|
|
|
|
nameid = desc[desc[0] - 1];
|
|
len = check_mapped_name(state, unitid, 0, kctl->id.name, sizeof(kctl->id.name));
|
|
if (len)
|
|
;
|
|
else if (nameid)
|
|
snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name));
|
|
else {
|
|
len = get_term_name(state, &state->oterm,
|
|
kctl->id.name, sizeof(kctl->id.name), 0);
|
|
if (! len)
|
|
strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name));
|
|
|
|
if ((state->oterm.type & 0xff00) == 0x0100)
|
|
strlcat(kctl->id.name, " Capture Source", sizeof(kctl->id.name));
|
|
else
|
|
strlcat(kctl->id.name, " Playback Source", sizeof(kctl->id.name));
|
|
}
|
|
|
|
snd_printdd(KERN_INFO "[%d] SU [%s] items = %d\n",
|
|
cval->id, kctl->id.name, num_ins);
|
|
if ((err = add_control_to_empty(state, kctl)) < 0)
|
|
return err;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* parse an audio unit recursively
|
|
*/
|
|
|
|
static int parse_audio_unit(struct mixer_build *state, int unitid)
|
|
{
|
|
unsigned char *p1;
|
|
|
|
if (test_and_set_bit(unitid, state->unitbitmap))
|
|
return 0; /* the unit already visited */
|
|
|
|
p1 = find_audio_control_unit(state, unitid);
|
|
if (!p1) {
|
|
snd_printk(KERN_ERR "usbaudio: unit %d not found!\n", unitid);
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch (p1[2]) {
|
|
case INPUT_TERMINAL:
|
|
return 0; /* NOP */
|
|
case MIXER_UNIT:
|
|
return parse_audio_mixer_unit(state, unitid, p1);
|
|
case SELECTOR_UNIT:
|
|
return parse_audio_selector_unit(state, unitid, p1);
|
|
case FEATURE_UNIT:
|
|
return parse_audio_feature_unit(state, unitid, p1);
|
|
case PROCESSING_UNIT:
|
|
return parse_audio_processing_unit(state, unitid, p1);
|
|
case EXTENSION_UNIT:
|
|
return parse_audio_extension_unit(state, unitid, p1);
|
|
default:
|
|
snd_printk(KERN_ERR "usbaudio: unit %u: unexpected type 0x%02x\n", unitid, p1[2]);
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
static void snd_usb_mixer_free(struct usb_mixer_interface *mixer)
|
|
{
|
|
kfree(mixer->id_elems);
|
|
if (mixer->urb) {
|
|
kfree(mixer->urb->transfer_buffer);
|
|
usb_free_urb(mixer->urb);
|
|
}
|
|
if (mixer->rc_urb)
|
|
usb_free_urb(mixer->rc_urb);
|
|
kfree(mixer->rc_setup_packet);
|
|
kfree(mixer);
|
|
}
|
|
|
|
static int snd_usb_mixer_dev_free(struct snd_device *device)
|
|
{
|
|
struct usb_mixer_interface *mixer = device->device_data;
|
|
snd_usb_mixer_free(mixer);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* create mixer controls
|
|
*
|
|
* walk through all OUTPUT_TERMINAL descriptors to search for mixers
|
|
*/
|
|
static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer)
|
|
{
|
|
unsigned char *desc;
|
|
struct mixer_build state;
|
|
int err;
|
|
const struct usbmix_ctl_map *map;
|
|
struct usb_host_interface *hostif;
|
|
|
|
hostif = &usb_ifnum_to_if(mixer->chip->dev, mixer->ctrlif)->altsetting[0];
|
|
memset(&state, 0, sizeof(state));
|
|
state.chip = mixer->chip;
|
|
state.mixer = mixer;
|
|
state.buffer = hostif->extra;
|
|
state.buflen = hostif->extralen;
|
|
|
|
/* check the mapping table */
|
|
for (map = usbmix_ctl_maps; map->id; map++) {
|
|
if (map->id == state.chip->usb_id) {
|
|
state.map = map->map;
|
|
state.selector_map = map->selector_map;
|
|
mixer->ignore_ctl_error = map->ignore_ctl_error;
|
|
break;
|
|
}
|
|
}
|
|
|
|
desc = NULL;
|
|
while ((desc = snd_usb_find_csint_desc(hostif->extra, hostif->extralen, desc, OUTPUT_TERMINAL)) != NULL) {
|
|
if (desc[0] < 9)
|
|
continue; /* invalid descriptor? */
|
|
set_bit(desc[3], state.unitbitmap); /* mark terminal ID as visited */
|
|
state.oterm.id = desc[3];
|
|
state.oterm.type = combine_word(&desc[4]);
|
|
state.oterm.name = desc[8];
|
|
err = parse_audio_unit(&state, desc[7]);
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer,
|
|
int unitid)
|
|
{
|
|
struct usb_mixer_elem_info *info;
|
|
|
|
for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem)
|
|
snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
|
|
info->elem_id);
|
|
}
|
|
|
|
static void snd_usb_mixer_memory_change(struct usb_mixer_interface *mixer,
|
|
int unitid)
|
|
{
|
|
if (mixer->rc_type == RC_NONE)
|
|
return;
|
|
/* unit ids specific to Extigy/Audigy 2 NX: */
|
|
switch (unitid) {
|
|
case 0: /* remote control */
|
|
mixer->rc_urb->dev = mixer->chip->dev;
|
|
usb_submit_urb(mixer->rc_urb, GFP_ATOMIC);
|
|
break;
|
|
case 4: /* digital in jack */
|
|
case 7: /* line in jacks */
|
|
case 19: /* speaker out jacks */
|
|
case 20: /* headphones out jack */
|
|
break;
|
|
default:
|
|
snd_printd(KERN_DEBUG "memory change in unknown unit %d\n", unitid);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void snd_usb_mixer_status_complete(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
struct usb_mixer_interface *mixer = urb->context;
|
|
|
|
if (urb->status == 0) {
|
|
u8 *buf = urb->transfer_buffer;
|
|
int i;
|
|
|
|
for (i = urb->actual_length; i >= 2; buf += 2, i -= 2) {
|
|
snd_printd(KERN_DEBUG "status interrupt: %02x %02x\n",
|
|
buf[0], buf[1]);
|
|
/* ignore any notifications not from the control interface */
|
|
if ((buf[0] & 0x0f) != 0)
|
|
continue;
|
|
if (!(buf[0] & 0x40))
|
|
snd_usb_mixer_notify_id(mixer, buf[1]);
|
|
else
|
|
snd_usb_mixer_memory_change(mixer, buf[1]);
|
|
}
|
|
}
|
|
if (urb->status != -ENOENT && urb->status != -ECONNRESET) {
|
|
urb->dev = mixer->chip->dev;
|
|
usb_submit_urb(urb, GFP_ATOMIC);
|
|
}
|
|
}
|
|
|
|
/* create the handler for the optional status interrupt endpoint */
|
|
static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer)
|
|
{
|
|
struct usb_host_interface *hostif;
|
|
struct usb_endpoint_descriptor *ep;
|
|
void *transfer_buffer;
|
|
int buffer_length;
|
|
unsigned int epnum;
|
|
|
|
hostif = &usb_ifnum_to_if(mixer->chip->dev, mixer->ctrlif)->altsetting[0];
|
|
/* we need one interrupt input endpoint */
|
|
if (get_iface_desc(hostif)->bNumEndpoints < 1)
|
|
return 0;
|
|
ep = get_endpoint(hostif, 0);
|
|
if ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) != USB_DIR_IN ||
|
|
(ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_INT)
|
|
return 0;
|
|
|
|
epnum = ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
|
|
buffer_length = le16_to_cpu(ep->wMaxPacketSize);
|
|
transfer_buffer = kmalloc(buffer_length, GFP_KERNEL);
|
|
if (!transfer_buffer)
|
|
return -ENOMEM;
|
|
mixer->urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!mixer->urb) {
|
|
kfree(transfer_buffer);
|
|
return -ENOMEM;
|
|
}
|
|
usb_fill_int_urb(mixer->urb, mixer->chip->dev,
|
|
usb_rcvintpipe(mixer->chip->dev, epnum),
|
|
transfer_buffer, buffer_length,
|
|
snd_usb_mixer_status_complete, mixer, ep->bInterval);
|
|
usb_submit_urb(mixer->urb, GFP_KERNEL);
|
|
return 0;
|
|
}
|
|
|
|
static void snd_usb_soundblaster_remote_complete(struct urb *urb,
|
|
struct pt_regs *regs)
|
|
{
|
|
struct usb_mixer_interface *mixer = urb->context;
|
|
/*
|
|
* format of remote control data:
|
|
* Extigy: xx 00
|
|
* Audigy 2 NX: 06 80 xx 00 00 00
|
|
*/
|
|
int offset = mixer->rc_type == RC_EXTIGY ? 0 : 2;
|
|
u32 code;
|
|
|
|
if (urb->status < 0 || urb->actual_length <= offset)
|
|
return;
|
|
code = mixer->rc_buffer[offset];
|
|
/* the Mute button actually changes the mixer control */
|
|
if (code == 13)
|
|
snd_usb_mixer_notify_id(mixer, 18);
|
|
mixer->rc_code = code;
|
|
wmb();
|
|
wake_up(&mixer->rc_waitq);
|
|
}
|
|
|
|
static int snd_usb_sbrc_hwdep_open(struct snd_hwdep *hw, struct file *file)
|
|
{
|
|
struct usb_mixer_interface *mixer = hw->private_data;
|
|
|
|
if (test_and_set_bit(0, &mixer->rc_hwdep_open))
|
|
return -EBUSY;
|
|
return 0;
|
|
}
|
|
|
|
static int snd_usb_sbrc_hwdep_release(struct snd_hwdep *hw, struct file *file)
|
|
{
|
|
struct usb_mixer_interface *mixer = hw->private_data;
|
|
|
|
clear_bit(0, &mixer->rc_hwdep_open);
|
|
smp_mb__after_clear_bit();
|
|
return 0;
|
|
}
|
|
|
|
static long snd_usb_sbrc_hwdep_read(struct snd_hwdep *hw, char __user *buf,
|
|
long count, loff_t *offset)
|
|
{
|
|
struct usb_mixer_interface *mixer = hw->private_data;
|
|
int err;
|
|
u32 rc_code;
|
|
|
|
if (count != 1 && count != 4)
|
|
return -EINVAL;
|
|
err = wait_event_interruptible(mixer->rc_waitq,
|
|
(rc_code = xchg(&mixer->rc_code, 0)) != 0);
|
|
if (err == 0) {
|
|
if (count == 1)
|
|
err = put_user(rc_code, buf);
|
|
else
|
|
err = put_user(rc_code, (u32 __user *)buf);
|
|
}
|
|
return err < 0 ? err : count;
|
|
}
|
|
|
|
static unsigned int snd_usb_sbrc_hwdep_poll(struct snd_hwdep *hw, struct file *file,
|
|
poll_table *wait)
|
|
{
|
|
struct usb_mixer_interface *mixer = hw->private_data;
|
|
|
|
poll_wait(file, &mixer->rc_waitq, wait);
|
|
return mixer->rc_code ? POLLIN | POLLRDNORM : 0;
|
|
}
|
|
|
|
static int snd_usb_soundblaster_remote_init(struct usb_mixer_interface *mixer)
|
|
{
|
|
struct snd_hwdep *hwdep;
|
|
int err, len;
|
|
|
|
switch (mixer->chip->usb_id) {
|
|
case USB_ID(0x041e, 0x3000):
|
|
mixer->rc_type = RC_EXTIGY;
|
|
len = 2;
|
|
break;
|
|
case USB_ID(0x041e, 0x3020):
|
|
mixer->rc_type = RC_AUDIGY2NX;
|
|
len = 6;
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
|
|
init_waitqueue_head(&mixer->rc_waitq);
|
|
err = snd_hwdep_new(mixer->chip->card, "SB remote control", 0, &hwdep);
|
|
if (err < 0)
|
|
return err;
|
|
snprintf(hwdep->name, sizeof(hwdep->name),
|
|
"%s remote control", mixer->chip->card->shortname);
|
|
hwdep->iface = SNDRV_HWDEP_IFACE_SB_RC;
|
|
hwdep->private_data = mixer;
|
|
hwdep->ops.read = snd_usb_sbrc_hwdep_read;
|
|
hwdep->ops.open = snd_usb_sbrc_hwdep_open;
|
|
hwdep->ops.release = snd_usb_sbrc_hwdep_release;
|
|
hwdep->ops.poll = snd_usb_sbrc_hwdep_poll;
|
|
|
|
mixer->rc_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!mixer->rc_urb)
|
|
return -ENOMEM;
|
|
mixer->rc_setup_packet = kmalloc(sizeof(*mixer->rc_setup_packet), GFP_KERNEL);
|
|
if (!mixer->rc_setup_packet) {
|
|
usb_free_urb(mixer->rc_urb);
|
|
mixer->rc_urb = NULL;
|
|
return -ENOMEM;
|
|
}
|
|
mixer->rc_setup_packet->bRequestType =
|
|
USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
|
|
mixer->rc_setup_packet->bRequest = GET_MEM;
|
|
mixer->rc_setup_packet->wValue = cpu_to_le16(0);
|
|
mixer->rc_setup_packet->wIndex = cpu_to_le16(0);
|
|
mixer->rc_setup_packet->wLength = cpu_to_le16(len);
|
|
usb_fill_control_urb(mixer->rc_urb, mixer->chip->dev,
|
|
usb_rcvctrlpipe(mixer->chip->dev, 0),
|
|
(u8*)mixer->rc_setup_packet, mixer->rc_buffer, len,
|
|
snd_usb_soundblaster_remote_complete, mixer);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_audigy2nx_led_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
|
|
{
|
|
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
|
|
uinfo->count = 1;
|
|
uinfo->value.integer.min = 0;
|
|
uinfo->value.integer.max = 1;
|
|
return 0;
|
|
}
|
|
|
|
static int snd_audigy2nx_led_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
|
|
int index = kcontrol->private_value;
|
|
|
|
ucontrol->value.integer.value[0] = mixer->audigy2nx_leds[index];
|
|
return 0;
|
|
}
|
|
|
|
static int snd_audigy2nx_led_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
|
|
int index = kcontrol->private_value;
|
|
int value = ucontrol->value.integer.value[0];
|
|
int err, changed;
|
|
|
|
if (value > 1)
|
|
return -EINVAL;
|
|
changed = value != mixer->audigy2nx_leds[index];
|
|
err = snd_usb_ctl_msg(mixer->chip->dev,
|
|
usb_sndctrlpipe(mixer->chip->dev, 0), 0x24,
|
|
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
|
|
value, index + 2, NULL, 0, 100);
|
|
if (err < 0)
|
|
return err;
|
|
mixer->audigy2nx_leds[index] = value;
|
|
return changed;
|
|
}
|
|
|
|
static struct snd_kcontrol_new snd_audigy2nx_controls[] = {
|
|
{
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "CMSS LED Switch",
|
|
.info = snd_audigy2nx_led_info,
|
|
.get = snd_audigy2nx_led_get,
|
|
.put = snd_audigy2nx_led_put,
|
|
.private_value = 0,
|
|
},
|
|
{
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "Power LED Switch",
|
|
.info = snd_audigy2nx_led_info,
|
|
.get = snd_audigy2nx_led_get,
|
|
.put = snd_audigy2nx_led_put,
|
|
.private_value = 1,
|
|
},
|
|
{
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "Dolby Digital LED Switch",
|
|
.info = snd_audigy2nx_led_info,
|
|
.get = snd_audigy2nx_led_get,
|
|
.put = snd_audigy2nx_led_put,
|
|
.private_value = 2,
|
|
},
|
|
};
|
|
|
|
static int snd_audigy2nx_controls_create(struct usb_mixer_interface *mixer)
|
|
{
|
|
int i, err;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(snd_audigy2nx_controls); ++i) {
|
|
err = snd_ctl_add(mixer->chip->card,
|
|
snd_ctl_new1(&snd_audigy2nx_controls[i], mixer));
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
mixer->audigy2nx_leds[1] = 1; /* Power LED is on by default */
|
|
return 0;
|
|
}
|
|
|
|
static void snd_audigy2nx_proc_read(struct snd_info_entry *entry,
|
|
struct snd_info_buffer *buffer)
|
|
{
|
|
static const struct {
|
|
int unitid;
|
|
const char *name;
|
|
} jacks[] = {
|
|
{4, "dig in "},
|
|
{7, "line in"},
|
|
{19, "spk out"},
|
|
{20, "hph out"},
|
|
};
|
|
struct usb_mixer_interface *mixer = entry->private_data;
|
|
int i, err;
|
|
u8 buf[3];
|
|
|
|
snd_iprintf(buffer, "%s jacks\n\n", mixer->chip->card->shortname);
|
|
for (i = 0; i < ARRAY_SIZE(jacks); ++i) {
|
|
snd_iprintf(buffer, "%s: ", jacks[i].name);
|
|
err = snd_usb_ctl_msg(mixer->chip->dev,
|
|
usb_rcvctrlpipe(mixer->chip->dev, 0),
|
|
GET_MEM, USB_DIR_IN | USB_TYPE_CLASS |
|
|
USB_RECIP_INTERFACE, 0,
|
|
jacks[i].unitid << 8, buf, 3, 100);
|
|
if (err == 3 && buf[0] == 3)
|
|
snd_iprintf(buffer, "%02x %02x\n", buf[1], buf[2]);
|
|
else
|
|
snd_iprintf(buffer, "?\n");
|
|
}
|
|
}
|
|
|
|
int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif)
|
|
{
|
|
static struct snd_device_ops dev_ops = {
|
|
.dev_free = snd_usb_mixer_dev_free
|
|
};
|
|
struct usb_mixer_interface *mixer;
|
|
int err;
|
|
|
|
strcpy(chip->card->mixername, "USB Mixer");
|
|
|
|
mixer = kzalloc(sizeof(*mixer), GFP_KERNEL);
|
|
if (!mixer)
|
|
return -ENOMEM;
|
|
mixer->chip = chip;
|
|
mixer->ctrlif = ctrlif;
|
|
#ifdef IGNORE_CTL_ERROR
|
|
mixer->ignore_ctl_error = 1;
|
|
#endif
|
|
mixer->id_elems = kcalloc(256, sizeof(*mixer->id_elems), GFP_KERNEL);
|
|
if (!mixer->id_elems) {
|
|
kfree(mixer);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if ((err = snd_usb_mixer_controls(mixer)) < 0 ||
|
|
(err = snd_usb_mixer_status_create(mixer)) < 0)
|
|
goto _error;
|
|
|
|
if ((err = snd_usb_soundblaster_remote_init(mixer)) < 0)
|
|
goto _error;
|
|
|
|
if (mixer->chip->usb_id == USB_ID(0x041e, 0x3020)) {
|
|
struct snd_info_entry *entry;
|
|
|
|
if ((err = snd_audigy2nx_controls_create(mixer)) < 0)
|
|
goto _error;
|
|
if (!snd_card_proc_new(chip->card, "audigy2nx", &entry))
|
|
snd_info_set_text_ops(entry, mixer, 1024,
|
|
snd_audigy2nx_proc_read);
|
|
}
|
|
|
|
err = snd_device_new(chip->card, SNDRV_DEV_LOWLEVEL, mixer, &dev_ops);
|
|
if (err < 0)
|
|
goto _error;
|
|
list_add(&mixer->list, &chip->mixer_list);
|
|
return 0;
|
|
|
|
_error:
|
|
snd_usb_mixer_free(mixer);
|
|
return err;
|
|
}
|
|
|
|
void snd_usb_mixer_disconnect(struct list_head *p)
|
|
{
|
|
struct usb_mixer_interface *mixer;
|
|
|
|
mixer = list_entry(p, struct usb_mixer_interface, list);
|
|
if (mixer->urb)
|
|
usb_kill_urb(mixer->urb);
|
|
if (mixer->rc_urb)
|
|
usb_kill_urb(mixer->rc_urb);
|
|
}
|