diff options
Diffstat (limited to 'src/include/dev.h')
| -rw-r--r-- | src/include/dev.h | 146 |
1 files changed, 39 insertions, 107 deletions
diff --git a/src/include/dev.h b/src/include/dev.h index bd352eb70..aa9ccac31 100644 --- a/src/include/dev.h +++ b/src/include/dev.h @@ -1,126 +1,58 @@ #ifndef DEV_H #define DEV_H -#include "isa.h" -#include "pci.h" +#include "stdint.h" +#include "nic.h" /* Need to check the packing of this struct if Etherboot is ported */ -struct dev_id -{ - unsigned short vendor_id; - unsigned short device_id; - unsigned char bus_type; +struct dev_id { + uint16_t vendor_id; + uint16_t device_id; + uint8_t bus_type; #define PCI_BUS_TYPE 1 #define ISA_BUS_TYPE 2 -}; +} __attribute__ ((packed)); /* Dont use sizeof, that will include the padding */ #define DEV_ID_SIZE 8 - -struct pci_probe_state -{ -#ifdef CONFIG_PCI - struct pci_device dev; - int advance; -#else - int dummy; -#endif -}; -struct isa_probe_state -{ -#ifdef CONFIG_ISA - const struct isa_driver *driver; - int advance; -#else - int dummy; -#endif +struct dev { + const char *name; + struct dev_id devid; /* device ID string (sent to DHCP server) */ + struct dev_operations *dev_op; + /* All possible device types */ + union { + struct nic nic; + }; }; -union probe_state -{ - struct pci_probe_state pci; - struct isa_probe_state isa; +struct dev_operations { + void ( *disable ) ( struct dev * ); + int ( *load_configuration ) ( struct dev * ); + int ( *load ) ( struct dev * ); }; -struct dev -{ - void (*disable)P((struct dev *)); - struct dev_id devid; /* device ID string (sent to DHCP server) */ - int index; /* Index of next device on this controller to probe */ - int type; /* Type of device I am probing for */ - int how_probe; /* First, next or awake */ - int to_probe; /* Flavor of device I am probing */ - int failsafe; /* Failsafe probe requested */ - int type_index; /* Index of this device (within type) */ -#define PROBE_NONE 0 -#define PROBE_PCI 1 -#define PROBE_ISA 2 - union probe_state state; +struct boot_driver { + char *name; + int (*probe) ( struct dev * ); }; - -#define NIC_DRIVER 0 -#define DISK_DRIVER 1 -#define FLOPPY_DRIVER 2 - -#define BRIDGE_DRIVER 1000 - -#define PROBE_FIRST (-1) -#define PROBE_NEXT 0 -#define PROBE_AWAKE 1 /* After calling disable bring up the same device */ - -/* The probe result codes are selected - * to allow them to be fed back into the probe - * routine and get a successful probe. - */ -#define PROBE_FAILED PROBE_FIRST -#define PROBE_WORKED PROBE_NEXT - -extern int probe(struct dev *dev); -extern void disable(struct dev *dev); - -/* Boot option values - * option & BOOT_TYPE_MASK should equal a driver for probing - */ - -#define BOOT_NIC 0x0 /* Boot from a nic */ -#define BOOT_DISK 0x1 /* Boot from disk */ -#define BOOT_FLOPPY 0x2 /* Boot from a floppy */ - -#define BOOT_NOTHING 0x3 /* Last valid boot choice */ - -/* Do magic failsafe boot processing */ -#define BOOT_FAILSAFE 0x8 - -#define BOOT_BITS 4 -#define BOOT_MASK ((1 << (BOOT_BITS)) - 1) -#define BOOT_TYPE_MASK ((1 << (BOOT_BITS - 1)) - 1) - -#define MAX_BOOT_ENTRIES 3 - -#define BOOT_ALL_VALUE (1<<BOOT_FIRST|1<<BOOT_SECOND|1<<BOOT_THIRD) - -/* These could be customised for different languages perhaps */ -#if BOOT_ALL_VALUE&(1<<BOOT_DISK) -#define BOOT_DISK_PROMPT "(D)isk " -#else -#define BOOT_DISK_PROMPT -#endif - -#if BOOT_ALL_VALUE&(1<<BOOT_FLOPPY) -#define BOOT_FLOPPY_PROMPT "(F)loppy " -#else -#define BOOT_FLOPPY_PROMPT -#endif - -#define ASK_PROMPT \ - "Boot from (N)etwork " BOOT_DISK_PROMPT BOOT_FLOPPY_PROMPT "or (Q)uit? " - -#define ANS_NETWORK 'N' -#define ANS_DISK 'D' -#define ANS_FLOPPY 'F' -#define ANS_QUIT 'Q' -#define ANS_DEFAULT '\n' +#define BOOT_DRIVER( driver_name, probe_func ) \ + static struct boot_driver boot_driver \ + __attribute__ ((used,__section__(".boot_drivers"))) = { \ + .name = driver_name, \ + .probe = probe_func, \ + }; + +/* Functions in dev.c */ +extern void print_drivers ( void ); +extern int probe ( struct dev *dev ); +extern void disable ( struct dev *dev ); +static inline int load_configuration ( struct dev *dev ) { + return dev->dev_op->load_configuration ( dev ); +} +static inline int load ( struct dev *dev ) { + return dev->dev_op->load ( dev ); +} #endif /* DEV_H */ |