Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /* 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  *  Copyright 10/16/2005 Tilman Kranz <tilde@tk-sls.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *  Creative Audio MIDI, for the CA0106 Driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  *  Version: 0.0.1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  *  Changelog:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  *    See ca_midi.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <sound/rawmidi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <sound/mpu401.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define CA_MIDI_MODE_INPUT	MPU401_MODE_INPUT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #define CA_MIDI_MODE_OUTPUT	MPU401_MODE_OUTPUT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) struct snd_ca_midi {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	struct snd_rawmidi *rmidi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	struct snd_rawmidi_substream *substream_input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	struct snd_rawmidi_substream *substream_output;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	void *dev_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	spinlock_t input_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	spinlock_t output_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	spinlock_t open_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	unsigned int channel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	unsigned int midi_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	int port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	int tx_enable, rx_enable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	int ipr_tx, ipr_rx;            
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	int input_avail, output_ready;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	int ack, reset, enter_uart;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	void (*interrupt)(struct snd_ca_midi *midi, unsigned int status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	void (*interrupt_enable)(struct snd_ca_midi *midi, int intr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	void (*interrupt_disable)(struct snd_ca_midi *midi, int intr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	unsigned char (*read)(struct snd_ca_midi *midi, int idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	void (*write)(struct snd_ca_midi *midi, int data, int idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	/* get info from dev_id */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	struct snd_card *(*get_dev_id_card)(void *dev_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	int (*get_dev_id_port)(void *dev_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) int ca_midi_init(void *card, struct snd_ca_midi *midi, int device, char *name);