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c0ac97d4e2281077156b03102755aaadbbd0288f
boudigi/gdigi.c
Tomasz Moń c0ac97d4e2 revise calculate_checksum
2009-02-25 20:19:21 +01:00

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/*
* Copyright (c) 2009 Tomasz Moń <desowin@gmail.com>
*
* 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; under version 3 of the License.
*
* 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, see <http://www.gnu.org/licenses>.
*/
#include <stdio.h>
#include <gtk/gtk.h>
#include <getopt.h>
#include <alsa/asoundlib.h>
#include <string.h>
#include "gdigi.h"
#include "gui.h"
#define TIMEOUT 1000
char buf[255];
static snd_rawmidi_t *output;
static char *device = "hw:1,0,0";
/*
static char magic[] = {0x04, 0xF0, 0x00, 0x00, 0x04, 0x10, 0x7F, 0x7F, 0x04, 0x7F, 0x01, 0x00, 0x04, 0x00, 0x00, 0x00, 0x06, 0x6E, 0xF7, 0x00}; // causes COMAND to be displayed on device?
static char presets_user[] = {0x04, 0xF0, 0x00, 0x00, 0x04, 0x10, 0x00, 0x5E, 0x04, 0x02, 0x21, 0x00, 0x07, 0x01, 0x6C, 0xF7}; // this command seems to query user presets?
static char presets_system[] = {0x04, 0xF0, 0x00, 0x00, 0x04, 0x10, 0x00, 0x5E, 0x04, 0x02, 0x21, 0x00, 0x07, 0x00, 0x6D, 0xF7}; // this command seems to query system presets?
static char magic4[] = {0x04, 0xF0, 0x00, 0x00, 0x04, 0x10, 0x00, 0x5E, 0x04, 0x02, 0x2B, 0x00, 0x04, 0x00, 0x01, 0x77, 0x05, 0xF7, 0x00, 0x00};
static char magic5[] = {0x04, 0xF0, 0x00, 0x00, 0x04, 0x10, 0x00, 0x5E, 0x04, 0x02, 0x3A, 0x00, 0x04, 0x00, 0x01, 0x77, 0x05, 0xF7, 0x00, 0x00};
// xedit calls those after calling hbsc pickup change
static char magic12[] = {0x04, 0xF0, 0x00, 0x00, 0x04, 0x10, 0x00, 0x5E, 0x04, 0x02, 0x3A, 0x00, 0x04, 0x00, 0x01, 0x77, 0x05, 0xF7, 0x00, 0x00};
static char magic13[] = {0x07, 0x41, 0x73, 0xF7, 0x04, 0x10, 0x00, 0x5E, 0x04, 0x02, 0x7E, 0x00, 0x04, 0x00, 0x01, 0x77, 0x05, 0xF7, 0x00, 0x00};
// xedit calls those after calling schb pickup change
static char magic22[] = {0x04, 0xF0, 0x00, 0x00, 0x04, 0x10, 0x00, 0x5E, 0x04, 0x02, 0x41, 0x00, 0x04, 0x00, 0x01, 0x77, 0x05, 0xF7, 0x00, 0x00};
static char magic23[] = {0x04, 0xF0, 0x00, 0x00, 0x04, 0x10, 0x00, 0x5E, 0x04, 0x02, 0x3A, 0x00, 0x04, 0x00, 0x01, 0x77, 0x05, 0xF7, 0x00, 0x00};
static char magic24[] = {0x04, 0xF0, 0x00, 0x00, 0x04, 0x10, 0x00, 0x5E, 0x04, 0x02, 0x3B, 0x00, 0x04, 0x00, 0x00, 0x00, 0x06, 0x6E, 0xF7, 0x00};
// seems to be called after changing dist type
static char magic8[] = {0x04, 0xF0, 0x00, 0x00, 0x04, 0x10, 0x00, 0x5E, 0x04, 0x02, 0x3A, 0x00, 0x04, 0x00, 0x01, 0x77, 0x05, 0xF7, 0x00, 0x00};
// X-edit also calls 2 different commands, but those seems to vary each time
*/
/*
calculate checksum
array - the command to set over usb
length - length of array
check - position of checksum byte in array
*/
char calculate_checksum(gchar *array, int length, int check)
{
int x;
char checksum;
checksum = 0x07;
for (x = 0; x<length; x++) {
if (x == check) continue;
checksum ^= array[x];
}
return checksum;
}
/*
opens MIDI device
Returns TRUE on error
*/
gboolean open_device()
{
int err;
err = snd_rawmidi_open(NULL, &output, device, SND_RAWMIDI_NONBLOCK);
if (err) {
fprintf(stderr, "snd_rawmidi_open %s failed: %d\n", device, err);
return TRUE;
}
err = snd_rawmidi_nonblock(output, 0);
if (err) {
fprintf(stderr, "snd_rawmidi_nonblock failed: %d\n", err);
return TRUE;
}
return FALSE;
}
void send_data(char *data, int lenght)
{
if (output == NULL)
open_device();
snd_rawmidi_write(output, data, lenght);
}
void check_preset(struct usb_dev_handle *handle)
{
/*static char magic3[] = {0x04, 0xF0, 0x00, 0x00, 0x04, 0x10, 0x00, 0x5E, 0x04, 0x02, 0x2A, 0x00, 0x04, 0x04, 0x00, 0x62, 0x05, 0xF7, 0x00, 0x00}; // seems to query active preset
int i;
i = usb_bulk_write(handle, 4, magic3, sizeof(magic3), TIMEOUT);
// UGLY - have to figure out reply formatting
do {
i = read_device(handle, 12);
if (i==12) {
if (buf[0]==0x04 && buf[1]==0x20 && buf[2]==0x03 && buf[3]==0x14 && buf[4]==0x04 &&
buf[6]==0x02 && buf[7]==0x20 && buf[8]==0x04 && buf[9]==0x04 && buf[10]==0x14)
printf("Wah min: %d\nWah max: %d\n", buf[5], buf[11]);
if (buf[0]==0x04 && buf[1]==0x00 && buf[2]==0x05 && buf[3]==0x03 && buf[4]==0x04 &&
buf[5]==0x11 && buf[7]==0x00 && buf[8]==0x04 && buf[9]==0x41 && buf[10]==0x04)
printf("Wah level: %d\nCompressor status (0-off, 1-on): %d\n", buf[6], buf[11]);
if (buf[0]==0x04 && buf[1]==0x04 && buf[2]==0x11 && buf[4]==0x04 && buf[5]==0x00 &&
buf[6]==0x53 && // we want to display this only for CS compressor
//buf[6]==0x53 (for CS comp) buf[6]==0x51 (for digi comp)
buf[7]==0x04 && buf[8]==0x04 && buf[10]==0x00 && buf[11]==0x52)
printf("Compressor sustain: %d\nCompressor attack: %d\n", buf[3], buf[9]);
if (buf[0]==0x04 && buf[1]==0x08 && buf[2]==0x04 && buf[4]==0x04 && buf[5]==0x09 && buf[6]==0x01 &&
buf[7]==0x06 && buf[8]==0x04 && buf[9]==0x01 && buf[10]==0x09 && buf[11]==0x51) // CS comp
printf("Compressor level: %d\n", buf[3]);
if (buf[0]==0x04 && buf[1]==0x08 && buf[2]==0x04 && buf[4]==0x04 && buf[5]==0x00 && buf[6]==0x53 &&
buf[7]==0x04 && buf[8]==0x04 && buf[9]==0x00 && buf[10]==0x09 && buf[11]==0x45) // digi comp
printf("Compressor level: %d\n", buf[3]);
if (buf[0]==0x04 && buf[1]==0x04 && buf[2]==0x11 && buf[4]==0x04 && buf[5]==0x00 &&
buf[6]==0x51 && buf[7]==0x04 && buf[8]==0x04 && buf[10]==0x00 && buf[11]==0x52)
printf("Compressor sustain: %d\nCompressor tone: %d\n", buf[3], buf[9]);
if (buf[0]==0x04 && buf[1]==0x00 && buf[2]==0x4f && buf[3]==0x2A && buf[4]==0x04 && buf[5]==0x04 &&
buf[6]==0x02 && buf[7]==0x00 && buf[8]==0x04 && buf[10]==0x00 && buf[11]==0x50)
printf("Compressor (43-DigiComp 44-CS): %02x\n", buf[9]);
if (buf[0]==0x04 && buf[1]==0x03 && buf[3]==0x00 && buf[4]==0x04 && buf[5]==0x00 && buf[6]==0x03 &&
buf[7]==0x50 && buf[8]==0x04 && buf[9]==0x02 && buf[10]==0x00)
printf("Wah status (0-off, 1-on): %d\nWah type (4-crywah, 5-fulrng, 6-clyde): %d\n", buf[2], buf[11]);
if (buf[0]==0x04 && buf[1]==0x08 && buf[2]==0x04 && buf[4]==0x04 && buf[5]==0x00 &&
buf[6]==0x53 && buf[7]==0x04 && buf[8]==0x04 && buf[10]==0x09 && buf[11]==0x45)
printf("Compressor level: %d\nCompressor attack (X-Edit only for DigiComp): %d\n", buf[3], buf[9]);
}
} while (i > 0);*/
}
/*
id - ID as found in preset file
position - Position as found in preset file
value - Value as found in preset file
*/
void set_option(guint id, guint position, guint value)
{
static char option[] = {0xF0, 0x00, 0x00, 0x10, 0x00, 0x5E, 0x02, 0x41,
0x00, 0x00, 0x00, /* ID */
0x00, /* position */
0x00, /* value length (not necesarry) */
0x00, 0x00, 0x00, /* value (can be either 1, 2 or 3 bytes) */
0x00, /* checksum */ 0xF7};
option[8] = ((id & 0x80) >> 2);
option[9] = ((id & 0xFF00) >> 8);
option[10] = ((id & 0x007F));
option[11] = position;
if (value < 0x80) {
// [12] = value, [13] - checksum, [14] = 0xF7
option[12] = value;
option[14] = 0xF7;
option[13] = calculate_checksum(option, 15, 13);
send_data(option, 15);
} else if (value <= 0xFF) {
option[8] |= 0x08; // there'll be length before value
if (((value & 0x80) >> 7) == 1)
option[8] |= 0x04;
option[12] = 0x01;
// [13] = value, [14] - checksum, [15] = 0xF7
option[13] = (value & 0x007F);
option[15] = 0xF7;
option[14] = calculate_checksum(option, 16, 14);
send_data(option, 16);
} else if (value <= 0xFFFF) {
option[8] |= 0x08; // there'll be length before value
if (((value & 0x80) >> 7) == 1)
option[8] |= 0x02;
option[12] = 0x02;
option[13] = ((value & 0xFF00) >> 8);
option[14] = ((value & 0x007F));
option[16] = 0xF7;
option[15] = calculate_checksum(option, 17, 15);
send_data(option, 17);
} else if (value <= 0xFFFFFF) {
option[8] |= 0x08; // there'll be length before value
if (((value & 0x80) >> 7) == 1)
option[8] |= 0x01;
option[12] = 0x03;
option[13] = ((value & 0xFF0000) >> 16);
option[14] = ((value & 0x00FF00) >> 8);
option[15] = ((value & 0x00007F));
option[17] = 0xF7;
option[16] = calculate_checksum(option, 18, 16);
send_data(option, 18);
}
}
void set_wah_type(int type)
{
set_option(WAH_TYPE, WAH_POSITION, type);
}
void set_wah_on_off(gboolean val)
{
set_option(WAH_ON_OFF, WAH_POSITION, (val == TRUE) ? 1 : 0);
}
void set_comp_type(int type)
{
set_option(COMP_TYPE, COMP_POSITION, type);
}
void set_comp_on_off(gboolean val)
{
set_option(COMP_ON_OFF, COMP_POSITION, (val == TRUE) ? 1 : 0);
}
/* x = 0 to 60 */
void switch_user_preset(int x)
{
static char switch_preset[] = {0x00, 0xF0, 0x00, 0x00, 0x10, 0x00, 0x5E, 0x02, 0x39, 0x00, 0x01 /* bank = user */, 0x00 /* no */, 0x04, 0x00, 0x00, 0x01, 0x00 /* confirm */, 0xF7};
switch_preset[11] = x;
switch_preset[16] = calculate_checksum(switch_preset, sizeof(switch_preset), 16);
send_data(switch_preset, sizeof(switch_preset));
}
/* x = 0 to 60 */
void switch_system_preset(int x)
{
static char switch_preset[] = {0x00, 0xF0, 0x00, 0x00, 0x10, 0x00, 0x5E, 0x02, 0x39, 0x00, 0x00 /* bank = system */, 0x00 /* no */, 0x04, 0x00, 0x00, 0x01, 0x00 /* confirm */, 0xF7};
switch_preset[11] = x;
switch_preset[16] = calculate_checksum(switch_preset, sizeof(switch_preset), 16);
send_data(switch_preset, sizeof(switch_preset));
}
void set_pickup_type(int type)
{
set_option(PICKUP_TYPE, PICKUP_POSITION, type);
}
void set_pickup_on_off(gboolean val)
{
set_option(PICKUP_ON_OFF, PICKUP_POSITION, (val == TRUE) ? 1 : 0);
}
void set_dist_type(int type)
{
set_option(DIST_TYPE, DIST_POSITION, type);
}
void set_dist_on_off(gboolean val)
{
set_option(DIST_ON_OFF, DIST_POSITION, (val == TRUE) ? 1 : 0);
}
/* level = 0 to 99 */
void set_preset_level(int level)
{
set_option(PRESET_LEVEL, PRESET_POSITION, level);
}
void set_eq_type(int type)
{
set_option(EQ_TYPE, EQ_POSITION, type);
}
void set_eq_on_off(gboolean val)
{
set_option(EQ_ON_OFF, EQ_POSITION, (val == TRUE) ? 1 : 0);
}
void set_noisegate_type(int type)
{
set_option(NOISEGATE_TYPE, NOISEGATE_POSITION, type);
}
void set_noisegate_on_off(gboolean val)
{
set_option(NOISEGATE_ON_OFF, NOISEGATE_POSITION, (val == TRUE) ? 1 : 0);
}
void set_chorusfx_type(int type)
{
set_option(CHORUSFX_TYPE, CHORUSFX_POSITION, type);
}
void set_chorusfx_on_off(gboolean val)
{
set_option(CHORUSFX_ON_OFF, CHORUSFX_POSITION, (val == TRUE) ? 1 : 0);
}
void set_delay_type(int type)
{
set_option(DELAY_TYPE, DELAY_POSITION, type);
}
void set_delay_on_off(gboolean val)
{
set_option(DELAY_ON_OFF, DELAY_POSITION, (val == TRUE) ? 1 : 0);
}
void set_reverb_type(int type)
{
set_option(REVERB_TYPE, REVERB_POSITION, type);
}
void set_reverb_on_off(gboolean val)
{
set_option(REVERB_ON_OFF, REVERB_POSITION, (val == TRUE) ? 1 : 0);
}
/* x = 0 to 59 (preset number) */
void set_preset_name(int x, gchar *name)
{
static char set_name[] = {0x00, 0xF0, 0x00, 0x00, 0x10, 0x00, 0x5E, 0x02, 0x29, 0x00, 0x01, 0x00 /* preset no */, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
set_name[11] = x;
int a;
int b;
b = 0;
for (a=0; (name != NULL && a<strlen(name)) && a<10 ; a++) {
if (a == 5) {
set_name[12+a] = 0x00;
b++;
}
set_name[12+a+b] = name[a];
}
if (a == 5)
a = 4;
else
set_name[12+a+b] = 0x00;
set_name[12+a+2+b] = 0xF7;
set_name[12+a+1+b] = calculate_checksum(set_name, 12+a+3+b, 12+a+1+b);
send_data(set_name, 13+a+3+b);
}
int main(int argc, char *argv[]) {
gtk_init(&argc, &argv);
int c;
while (1) {
static struct option long_options[] = {
{"device", required_argument, 0, 'd'},
{0, 0, 0, 0}
};
int option_index = 0;
c = getopt_long(argc, argv, "d:", long_options, &option_index);
if (c == -1)
break;
switch(c) {
case 'd':
device = optarg;
break;
default:
abort();
}
}
if (open_device() == TRUE) {
GtkWidget *msg = gtk_message_dialog_new(NULL, GTK_DIALOG_MODAL,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_OK,
"Failed to open MIDI device");
gtk_dialog_run(GTK_DIALOG(msg));
gtk_widget_destroy(msg);
} else {
create_window();
gtk_main();
}
if (output != NULL)
snd_rawmidi_close(output);
return 0;
}
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