1 /*
2 * Copyright 10/16/2005 Tilman Kranz <tilde@tk-sls.de>
3 * Creative Audio MIDI, for the CA0106 Driver
4 * Version: 0.0.1
5 *
6 * Changelog:
7 * See ca_midi.c
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 */
24
25 #include <linux/spinlock.h>
26 #include <sound/rawmidi.h>
27 #include <sound/mpu401.h>
28
29 #define CA_MIDI_MODE_INPUT MPU401_MODE_INPUT
30 #define CA_MIDI_MODE_OUTPUT MPU401_MODE_OUTPUT
31
32 struct snd_ca_midi {
33
34 struct snd_rawmidi *rmidi;
35 struct snd_rawmidi_substream *substream_input;
36 struct snd_rawmidi_substream *substream_output;
37
38 void *dev_id;
39
40 spinlock_t input_lock;
41 spinlock_t output_lock;
42 spinlock_t open_lock;
43
44 unsigned int channel;
45
46 unsigned int midi_mode;
47 int port;
48 int tx_enable, rx_enable;
49 int ipr_tx, ipr_rx;
50
51 int input_avail, output_ready;
52 int ack, reset, enter_uart;
53
54 void (*interrupt)(struct snd_ca_midi *midi, unsigned int status);
55 void (*interrupt_enable)(struct snd_ca_midi *midi, int intr);
56 void (*interrupt_disable)(struct snd_ca_midi *midi, int intr);
57
58 unsigned char (*read)(struct snd_ca_midi *midi, int idx);
59 void (*write)(struct snd_ca_midi *midi, int data, int idx);
60
61 /* get info from dev_id */
62 struct snd_card *(*get_dev_id_card)(void *dev_id);
63 int (*get_dev_id_port)(void *dev_id);
64 };
65
66 int ca_midi_init(void *card, struct snd_ca_midi *midi, int device, char *name);
67
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