1 #ifndef ISA_H 2 #define ISA_H 3 4 FILE_LICENCE ( GPL2_OR_LATER ); 5 6 #include <stdint.h> 7 #include <gpxe/isa_ids.h> 8 #include <gpxe/device.h> 9 #include <gpxe/tables.h> 10 11 /** An ISA device */ 12 struct isa_device { 13 /** Generic device */ 14 struct device dev; 15 /** I/O address */ 16 uint16_t ioaddr; 17 /** Driver for this device */ 18 struct isa_driver *driver; 19 /** Driver-private data 20 * 21 * Use isa_set_drvdata() and isa_get_drvdata() to access 22 * this field. 23 */ 24 void *priv; 25 /** Driver name */ 26 const char *driver_name; 27 }; 28 29 /* 30 * An individual ISA device, identified by probe address 31 * 32 */ 33 typedef uint16_t isa_probe_addr_t; 34 35 /** An ISA driver */ 36 struct isa_driver { 37 /** Name */ 38 const char *name; 39 /** Probe address list */ 40 isa_probe_addr_t *probe_addrs; 41 /** Number of entries in probe address list */ 42 unsigned int addr_count; 43 /** Manufacturer ID to be assumed for this device */ 44 uint16_t vendor_id; 45 /** Product ID to be assumed for this device */ 46 uint16_t prod_id; 47 /** 48 * Probe device 49 * 50 * @v isa ISA device 51 * @v id Matching entry in ID table 52 * @ret rc Return status code 53 */ 54 int ( * probe ) ( struct isa_device *isa ); 55 /** 56 * Remove device 57 * 58 * @v isa ISA device 59 */ 60 void ( * remove ) ( struct isa_device *isa ); 61 }; 62 63 /** ISA driver table */ 64 #define ISA_DRIVERS __table ( struct isa_driver, "isa_drivers" ) 65 66 /** Declare an ISA driver */ 67 #define __isa_driver __table_entry ( ISA_DRIVERS, 01 ) 68 69 /** 70 * Set ISA driver-private data 71 * 72 * @v isa ISA device 73 * @v priv Private data 74 */ 75 static inline void isa_set_drvdata ( struct isa_device *isa, void *priv ) { 76 isa->priv = priv; 77 } 78 79 /** 80 * Get ISA driver-private data 81 * 82 * @v isa ISA device 83 * @ret priv Private data 84 */ 85 static inline void * isa_get_drvdata ( struct isa_device *isa ) { 86 return isa->priv; 87 } 88 89 /* 90 * ISA_ROM is parsed by parserom.pl to generate Makefile rules and 91 * files for rom-o-matic. 92 * 93 */ 94 #define ISA_ROM( IMAGE, DESCRIPTION ) 95 96 #endif /* ISA_H */ 97 98
