sound/pci/ca0106/ca_midi.h

Source file repositories/reference/linux-study-clean/sound/pci/ca0106/ca_midi.h

File Facts

System
Linux kernel
Corpus path
sound/pci/ca0106/ca_midi.h
Extension
.h
Size
1332 bytes
Lines
53
Domain
Driver Families
Bucket
sound/pci
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct snd_ca_midi {

	struct snd_rawmidi *rmidi;
	struct snd_rawmidi_substream *substream_input;
	struct snd_rawmidi_substream *substream_output;

	void *dev_id;

	spinlock_t input_lock;
	spinlock_t output_lock;
	spinlock_t open_lock;

	unsigned int channel;

	unsigned int midi_mode;
	int port;
	int tx_enable, rx_enable;
	int ipr_tx, ipr_rx;            
	
	int input_avail, output_ready;
	int ack, reset, enter_uart;

	void (*interrupt)(struct snd_ca_midi *midi, unsigned int status);
	void (*interrupt_enable)(struct snd_ca_midi *midi, int intr);
	void (*interrupt_disable)(struct snd_ca_midi *midi, int intr);

	unsigned char (*read)(struct snd_ca_midi *midi, int idx);
	void (*write)(struct snd_ca_midi *midi, int data, int idx);

	/* get info from dev_id */
	struct snd_card *(*get_dev_id_card)(void *dev_id);
	int (*get_dev_id_port)(void *dev_id);
};

int ca_midi_init(void *card, struct snd_ca_midi *midi, int device, char *name);

Annotation

Implementation Notes