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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:51 +0000 |
commit | 6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e (patch) | |
tree | 32451fa3cdd9321fb2591fada9891b2cb70a9cd1 /include/grub/scsi.h | |
parent | Initial commit. (diff) | |
download | grub2-upstream/2.06.tar.xz grub2-upstream/2.06.zip |
Adding upstream version 2.06.upstream/2.06upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | include/grub/scsi.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/include/grub/scsi.h b/include/grub/scsi.h new file mode 100644 index 0000000..a919a7c --- /dev/null +++ b/include/grub/scsi.h @@ -0,0 +1,111 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008 Free Software Foundation, Inc. + * + * GRUB 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. + * + * GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef GRUB_SCSI_H +#define GRUB_SCSI_H 1 + +#include <grub/disk.h> + +typedef struct grub_scsi_dev *grub_scsi_dev_t; + +void grub_scsi_dev_register (grub_scsi_dev_t dev); +void grub_scsi_dev_unregister (grub_scsi_dev_t dev); + +struct grub_scsi; + +enum + { + GRUB_SCSI_SUBSYSTEM_USBMS, + GRUB_SCSI_SUBSYSTEM_PATA, + GRUB_SCSI_SUBSYSTEM_AHCI, + GRUB_SCSI_NUM_SUBSYSTEMS + }; + +extern const char grub_scsi_names[GRUB_SCSI_NUM_SUBSYSTEMS][5]; + +#define GRUB_SCSI_ID_SUBSYSTEM_SHIFT 24 +#define GRUB_SCSI_ID_BUS_SHIFT 8 +#define GRUB_SCSI_ID_LUN_SHIFT 0 + +static inline grub_uint32_t +grub_make_scsi_id (int subsystem, int bus, int lun) +{ + return (subsystem << GRUB_SCSI_ID_SUBSYSTEM_SHIFT) + | (bus << GRUB_SCSI_ID_BUS_SHIFT) | (lun << GRUB_SCSI_ID_LUN_SHIFT); +} + +typedef int (*grub_scsi_dev_iterate_hook_t) (int id, int bus, int luns, + void *data); + +struct grub_scsi_dev +{ + /* Call HOOK with each device name, until HOOK returns non-zero. */ + int (*iterate) (grub_scsi_dev_iterate_hook_t hook, void *hook_data, + grub_disk_pull_t pull); + + /* Open the device named NAME, and set up SCSI. */ + grub_err_t (*open) (int id, int bus, struct grub_scsi *scsi); + + /* Close the scsi device SCSI. */ + void (*close) (struct grub_scsi *scsi); + + /* Read SIZE bytes from the device SCSI into BUF after sending the + command CMD of size CMDSIZE. */ + grub_err_t (*read) (struct grub_scsi *scsi, grub_size_t cmdsize, char *cmd, + grub_size_t size, char *buf); + + /* Write SIZE bytes from BUF to the device SCSI after sending the + command CMD of size CMDSIZE. */ + grub_err_t (*write) (struct grub_scsi *scsi, grub_size_t cmdsize, char *cmd, + grub_size_t size, const char *buf); + + /* The next scsi device. */ + struct grub_scsi_dev *next; +}; + +struct grub_scsi +{ + /* The underlying scsi device. */ + grub_scsi_dev_t dev; + + /* Type of SCSI device. XXX: Make enum. */ + grub_uint8_t devtype; + + int bus; + + /* Number of LUNs. */ + int luns; + + /* LUN for this `struct grub_scsi'. */ + int lun; + + /* Set to 0 when not removable, 1 when removable. */ + int removable; + + /* Size of the device in blocks - 1. */ + grub_uint64_t last_block; + + /* Size of one block. */ + grub_uint32_t blocksize; + + /* Device-specific data. */ + void *data; +}; +typedef struct grub_scsi *grub_scsi_t; + +#endif /* GRUB_SCSI_H */ |