mirror of https://github.com/ipxe/ipxe.git
				
				
				
			
		
			
				
	
	
		
			93 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			C
		
	
	
			
		
		
	
	
			93 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			C
		
	
	
| #ifndef	ISA_H
 | |
| #define ISA_H
 | |
| 
 | |
| #include <stdint.h>
 | |
| #include <gpxe/isa_ids.h>
 | |
| #include <gpxe/device.h>
 | |
| #include <gpxe/tables.h>
 | |
| 
 | |
| /** An ISA device */
 | |
| struct isa_device {
 | |
| 	/** Generic device */
 | |
| 	struct device dev;
 | |
| 	/** I/O address */
 | |
| 	uint16_t ioaddr;
 | |
| 	/** Driver for this device */
 | |
| 	struct isa_driver *driver;
 | |
| 	/** Driver-private data
 | |
| 	 *
 | |
| 	 * Use isa_set_drvdata() and isa_get_drvdata() to access
 | |
| 	 * this field.
 | |
| 	 */
 | |
| 	void *priv;
 | |
| 	/** Driver name */
 | |
| 	const char *driver_name;
 | |
| };
 | |
| 
 | |
| /*
 | |
|  * An individual ISA device, identified by probe address
 | |
|  *
 | |
|  */
 | |
| typedef uint16_t isa_probe_addr_t;
 | |
| 
 | |
| /** An ISA driver */
 | |
| struct isa_driver {
 | |
| 	/** Name */
 | |
| 	const char *name;
 | |
| 	/** Probe address list */
 | |
| 	isa_probe_addr_t *probe_addrs;
 | |
| 	/** Number of entries in probe address list */
 | |
| 	unsigned int addr_count;
 | |
| 	/** Manufacturer ID to be assumed for this device */
 | |
| 	uint16_t vendor_id;
 | |
| 	/** Product ID to be assumed for this device */
 | |
| 	uint16_t prod_id;
 | |
| 	/**
 | |
| 	 * Probe device
 | |
| 	 *
 | |
| 	 * @v isa	ISA device
 | |
| 	 * @v id	Matching entry in ID table
 | |
| 	 * @ret rc	Return status code
 | |
| 	 */
 | |
| 	int ( * probe ) ( struct isa_device *isa );
 | |
| 	/**
 | |
| 	 * Remove device
 | |
| 	 *
 | |
| 	 * @v isa	ISA device
 | |
| 	 */
 | |
| 	void ( * remove ) ( struct isa_device *isa );
 | |
| };
 | |
| 
 | |
| /** Declare an ISA driver */
 | |
| #define __isa_driver __table ( struct isa_driver, isa_drivers, 01 )
 | |
| 
 | |
| /**
 | |
|  * Set ISA driver-private data
 | |
|  *
 | |
|  * @v isa		ISA device
 | |
|  * @v priv		Private data
 | |
|  */
 | |
| static inline void isa_set_drvdata ( struct isa_device *isa, void *priv ) {
 | |
| 	isa->priv = priv;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * Get ISA driver-private data
 | |
|  *
 | |
|  * @v isa		ISA device
 | |
|  * @ret priv		Private data
 | |
|  */
 | |
| static inline void * isa_get_drvdata ( struct isa_device *isa ) {
 | |
| 	return isa->priv;
 | |
| }
 | |
| 
 | |
| /*
 | |
|  * ISA_ROM is parsed by parserom.pl to generate Makefile rules and
 | |
|  * files for rom-o-matic.
 | |
|  *
 | |
|  */
 | |
| #define ISA_ROM( IMAGE, DESCRIPTION )
 | |
| 
 | |
| #endif /* ISA_H */
 | |
| 
 |