/* -*- mode:C++; indent-tabs-mode:t; tab-width:8; c-basic-offset: 8 -*- */
/*
* Controller for Tascam US-X2Y
*
* Copyright (c) 2003 by Karsten Wiese <annabellesgarden@yahoo.de>
* Copyright (c) 2004-2007 by Rui Nuno Capela <rncbc@rncbc.org>
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/mman.h>
#include <poll.h>
#include <alsa/asoundlib.h>
#include "Cus428_ctls.h"
#include "Cus428State.h"
#include "Cus428Midi.h"
#define PROGNAME "us428control"
#define SND_USX2Y_LOADER_ID "USX2Y Loader"
/* max. number of cards (shouldn't be in the public header?) */
#define SND_CARDS 8
int verbose = 1;
Cus428Midi Midi;
static void error(const char *fmt, ...)
{
if (verbose) {
va_list ap;
va_start(ap, fmt);
fprintf(stderr, "%s: ", PROGNAME);
vfprintf(stderr, fmt, ap);
va_end(ap);
}
}
static void usage(void)
{
printf("Tascam US-428 Control\n");
printf("version %s\n", VERSION);
printf("usage: "PROGNAME" [-v verbosity_level 0..2] [-c card] [-D device] [-u usb-device] [-m mode]\n");
printf("mode is one of (us224, us428, mixxx)\n");
}
/*
* check the name id of the given hwdep handle
*/
static int check_hwinfo(snd_hwdep_t *hw, const char *id, const char* usb_dev_name)
{
snd_hwdep_info_t *info;
int err;
snd_hwdep_info_alloca(&info);
if ((err = snd_hwdep_info(hw, info)) < 0)
return err;
if (strcmp(snd_hwdep_info_get_id(info), id))
return -ENODEV;
if (usb_dev_name)
if (strcmp(snd_hwdep_info_get_name(info), usb_dev_name))
return -ENODEV;
return 0; /* ok */
}
int US428Control(const char* DevName, int mode, int y)
{
snd_hwdep_t *hw;
int err;
unsigned int idx, dsps, loaded;
us428ctls_sharedmem_t *us428ctls_sharedmem;
struct pollfd *pfds;
int npfd, pollrc;
if ((err = snd_hwdep_open(&hw, DevName, O_RDWR)) < 0) {
if (verbose > 1)
error("cannot open hwdep %s\n", DevName);
return err;
}
if (check_hwinfo(hw, SND_USX2Y_LOADER_ID, NULL) < 0) {
error("invalid hwdep %s\n", DevName);
snd_hwdep_close(hw);
return -ENODEV;
}
if (verbose > 0)
fprintf(stderr, PROGNAME ": US-X2Y-compatible card found on hwdep %s\n", DevName);
Midi.CreatePorts();
npfd = snd_seq_poll_descriptors_count(Midi.Seq, POLLIN) + 1;
pfds = (struct pollfd *) alloca(npfd * sizeof(struct pollfd));
snd_hwdep_poll_descriptors(hw, &pfds[0], 1);
snd_seq_poll_descriptors(Midi.Seq, &pfds[1], npfd - 1, POLLIN);
us428ctls_sharedmem = (us428ctls_sharedmem_t *) mmap(NULL, sizeof(us428ctls_sharedmem_t), PROT_READ|PROT_WRITE, MAP_SHARED, pfds[0].fd, 0);
if (us428ctls_sharedmem == MAP_FAILED) {
perror("mmap failed:");
snd_hwdep_close(hw);
return -ENOMEM;
}
us428ctls_sharedmem->CtlSnapShotRed = us428ctls_sharedmem->CtlSnapShotLast;
if (mode == 1)
OneState = new Cus428StateMixxx(us428ctls_sharedmem, y);
else
OneState = new Cus428State(us428ctls_sharedmem, y);
OneState->InitDevice();
while ((pollrc = poll(pfds, npfd, 60000)) >= 0) {
if (pfds[0].revents) {
if (verbose > 1 || pfds[0].revents & (POLLERR|POLLHUP))
printf("poll returned 0x%X\n", pfds[0].revents);
if (pfds[0].revents & (POLLERR|POLLHUP))
return 0; /* -ENXIO; */
int Last = us428ctls_sharedmem->CtlSnapShotLast;
if (verbose > 1)
printf("Last is %i\n", Last);
while (us428ctls_sharedmem->CtlSnapShotRed != Last) {
static Cus428_ctls *Red = 0;
int Read = us428ctls_sharedmem->CtlSnapShotRed + 1;
if (Read >= N_us428_ctl_BUFS || Read < 0)
Read = 0;
Cus428_ctls* PCtlSnapShot = ((Cus428_ctls*)(us428ctls_sharedmem->CtlSnapShot)) + Read;
int DiffAt = us428ctls_sharedmem->CtlSnapShotDiffersAt[Read];
if (verbose > 1)
PCtlSnapShot->dump(DiffAt);
PCtlSnapShot->analyse(Red, DiffAt);
Red = PCtlSnapShot;
us428ctls_sharedmem->CtlSnapShotRed = Read;
}
}
else if (pollrc > 0) Midi.ProcessMidiEvents();
}
return pollrc;
}
int main (int argc, char *argv[])
{
int c;
int y = 8;
int mode = 0;
int card = -1;
char *device_name = NULL,
*usb_device_name = getenv("DEVICE");
char name[64];
while ((c = getopt(argc, argv, "c:D:u:v:m:")) != -1) {
switch (c) {
case 'c':
card = atoi(optarg);
break;
case 'D':
device_name = optarg;
break;
case 'u':
usb_device_name = optarg;
break;
case 'v':
verbose = atoi(optarg);
break;
case 'm':
if (!strcmp(optarg, "us224"))
y = 4;
else
if (!strcmp(optarg, "us428"))
y = 8;
else
if (!strcmp(optarg, "mixxx"))
mode = 1;
break;
default:
usage();
return 1;
}
}
if (usb_device_name) {
snd_hwdep_t *hw = NULL;
for (c = 0; c < SND_CARDS; c++) {
sprintf(name, "hw:%d", c);
if ((0 <= snd_hwdep_open(&hw, name, O_RDWR))
&& (0 <= check_hwinfo(hw, SND_USX2Y_LOADER_ID, usb_device_name))
&& (0 <= snd_hwdep_close(hw))){
card = c;
break;
}
}
}
if (device_name) {
return US428Control(device_name, mode, y) != 0;
}
if (card >= 0) {
sprintf(name, "hw:%d", card);
return US428Control(name, mode, y) != 0;
}
/* probe the all cards */
for (c = 0; c < SND_CARDS; c++) {
// verbose--;
sprintf(name, "hw:%d", c);
if (US428Control(name, mode, y) == 0) {
card = c;
break;
}
}
if (card < 0) {
fprintf(stderr, PROGNAME ": no US-X2Y-compatible cards found\n");
return 1;
}
return 0;
}