1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * Copyright 10/16/2005 Tilman Kranz <tilde@tk-sls.de> |
4 | * Creative Audio MIDI, for the CA0106 Driver |
5 | * Version: 0.0.1 |
6 | * |
7 | * Changelog: |
8 | * See ca_midi.c |
9 | */ |
10 | |
11 | #include <linux/spinlock.h> |
12 | #include <sound/rawmidi.h> |
13 | #include <sound/mpu401.h> |
14 | |
15 | #define CA_MIDI_MODE_INPUT MPU401_MODE_INPUT |
16 | #define CA_MIDI_MODE_OUTPUT MPU401_MODE_OUTPUT |
17 | |
18 | struct snd_ca_midi { |
19 | |
20 | struct snd_rawmidi *rmidi; |
21 | struct snd_rawmidi_substream *substream_input; |
22 | struct snd_rawmidi_substream *substream_output; |
23 | |
24 | void *dev_id; |
25 | |
26 | spinlock_t input_lock; |
27 | spinlock_t output_lock; |
28 | spinlock_t open_lock; |
29 | |
30 | unsigned int channel; |
31 | |
32 | unsigned int midi_mode; |
33 | int port; |
34 | int tx_enable, rx_enable; |
35 | int ipr_tx, ipr_rx; |
36 | |
37 | int input_avail, output_ready; |
38 | int ack, reset, enter_uart; |
39 | |
40 | void (*interrupt)(struct snd_ca_midi *midi, unsigned int status); |
41 | void (*interrupt_enable)(struct snd_ca_midi *midi, int intr); |
42 | void (*interrupt_disable)(struct snd_ca_midi *midi, int intr); |
43 | |
44 | unsigned char (*read)(struct snd_ca_midi *midi, int idx); |
45 | void (*write)(struct snd_ca_midi *midi, int data, int idx); |
46 | |
47 | /* get info from dev_id */ |
48 | struct snd_card *(*get_dev_id_card)(void *dev_id); |
49 | int (*get_dev_id_port)(void *dev_id); |
50 | }; |
51 | |
52 | int ca_midi_init(void *card, struct snd_ca_midi *midi, int device, char *name); |
53 | |