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