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#ifndef DEV_H
#define DEV_H
#include "isa.h"
#include "pci.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;
#define PCI_BUS_TYPE 1
#define ISA_BUS_TYPE 2
};
/* 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
};
union probe_state
{
struct pci_probe_state pci;
struct isa_probe_state isa;
};
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;
};
#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'
#endif /* DEV_H */
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