112 lines
3.2 KiB
C
112 lines
3.2 KiB
C
/*
|
|
* VAS_EBOOT -- GRand Unified Bootloader
|
|
* Copyright (C) 2008 Free Software Foundation, Inc.
|
|
*
|
|
* VAS_EBOOT is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* VAS_EBOOT is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with VAS_EBOOT. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef VAS_EBOOT_SCSI_H
|
|
#define VAS_EBOOT_SCSI_H 1
|
|
|
|
#include <VasEBoot/disk.h>
|
|
|
|
typedef struct VasEBoot_scsi_dev *VasEBoot_scsi_dev_t;
|
|
|
|
void VasEBoot_scsi_dev_register (VasEBoot_scsi_dev_t dev);
|
|
void VasEBoot_scsi_dev_unregister (VasEBoot_scsi_dev_t dev);
|
|
|
|
struct VasEBoot_scsi;
|
|
|
|
enum
|
|
{
|
|
VAS_EBOOT_SCSI_SUBSYSTEM_USBMS,
|
|
VAS_EBOOT_SCSI_SUBSYSTEM_PATA,
|
|
VAS_EBOOT_SCSI_SUBSYSTEM_AHCI,
|
|
VAS_EBOOT_SCSI_NUM_SUBSYSTEMS
|
|
};
|
|
|
|
extern const char VasEBoot_scsi_names[VAS_EBOOT_SCSI_NUM_SUBSYSTEMS][5];
|
|
|
|
#define VAS_EBOOT_SCSI_ID_SUBSYSTEM_SHIFT 24
|
|
#define VAS_EBOOT_SCSI_ID_BUS_SHIFT 8
|
|
#define VAS_EBOOT_SCSI_ID_LUN_SHIFT 0
|
|
|
|
static inline VasEBoot_uint32_t
|
|
VasEBoot_make_scsi_id (int subsystem, int bus, int lun)
|
|
{
|
|
return (subsystem << VAS_EBOOT_SCSI_ID_SUBSYSTEM_SHIFT)
|
|
| (bus << VAS_EBOOT_SCSI_ID_BUS_SHIFT) | (lun << VAS_EBOOT_SCSI_ID_LUN_SHIFT);
|
|
}
|
|
|
|
typedef int (*VasEBoot_scsi_dev_iterate_hook_t) (int id, int bus, int luns,
|
|
void *data);
|
|
|
|
struct VasEBoot_scsi_dev
|
|
{
|
|
/* Call HOOK with each device name, until HOOK returns non-zero. */
|
|
int (*iterate) (VasEBoot_scsi_dev_iterate_hook_t hook, void *hook_data,
|
|
VasEBoot_disk_pull_t pull);
|
|
|
|
/* Open the device named NAME, and set up SCSI. */
|
|
VasEBoot_err_t (*open) (int id, int bus, struct VasEBoot_scsi *scsi);
|
|
|
|
/* Close the scsi device SCSI. */
|
|
void (*close) (struct VasEBoot_scsi *scsi);
|
|
|
|
/* Read SIZE bytes from the device SCSI into BUF after sending the
|
|
command CMD of size CMDSIZE. */
|
|
VasEBoot_err_t (*read) (struct VasEBoot_scsi *scsi, VasEBoot_size_t cmdsize, char *cmd,
|
|
VasEBoot_size_t size, char *buf);
|
|
|
|
/* Write SIZE bytes from BUF to the device SCSI after sending the
|
|
command CMD of size CMDSIZE. */
|
|
VasEBoot_err_t (*write) (struct VasEBoot_scsi *scsi, VasEBoot_size_t cmdsize, char *cmd,
|
|
VasEBoot_size_t size, const char *buf);
|
|
|
|
/* The next scsi device. */
|
|
struct VasEBoot_scsi_dev *next;
|
|
};
|
|
|
|
struct VasEBoot_scsi
|
|
{
|
|
/* The underlying scsi device. */
|
|
VasEBoot_scsi_dev_t dev;
|
|
|
|
/* Type of SCSI device. XXX: Make enum. */
|
|
VasEBoot_uint8_t devtype;
|
|
|
|
int bus;
|
|
|
|
/* Number of LUNs. */
|
|
int luns;
|
|
|
|
/* LUN for this `struct VasEBoot_scsi'. */
|
|
int lun;
|
|
|
|
/* Set to 0 when not removable, 1 when removable. */
|
|
int removable;
|
|
|
|
/* Size of the device in blocks - 1. */
|
|
VasEBoot_uint64_t last_block;
|
|
|
|
/* Size of one block. */
|
|
VasEBoot_uint32_t blocksize;
|
|
|
|
/* Device-specific data. */
|
|
void *data;
|
|
};
|
|
typedef struct VasEBoot_scsi *VasEBoot_scsi_t;
|
|
|
|
#endif /* VAS_EBOOT_SCSI_H */
|