diff options
Diffstat (limited to 'src/kernel/files.c')
| -rw-r--r-- | src/kernel/files.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/kernel/files.c b/src/kernel/files.c index 78fe664..b8a9061 100644 --- a/src/kernel/files.c +++ b/src/kernel/files.c @@ -18,6 +18,23 @@ OF THIS SOFTWARE. */ #include "files.h" +#include "diskio.h" +#include "gpt.h" + +uint8_t working_drive; +uint8_t working_part; +uint8_t buffer[1024]; + +void set_working_drive(uint8_t name, uint8_t part) { + if ((name >= (uint8_t)'a') && (name <= (uint8_t)'z') && + (drives[name - (uint8_t)'a'].flags & PRESENT)) + working_drive = name - (uint8_t)'a'; + if (part_info[working_drive].format & ~DIRECT) + working_part = + (part >= (uint8_t)'0') && (name <= (uint8_t)'9') && + (part_info[working_drive].n_partitions > part) ? + (part & 0x0f) : 0; +} uint16_t open_file(uint8_t *name) { return 0;//TODO @@ -52,4 +69,22 @@ uint32_t read_line_file(uint16_t handle, uint32_t max, void *buffer) { } ++i; } +} + +void detect_disk_parts(uint8_t drive) { + if ((drive >= (uint8_t)'a') && (drive <= (uint8_t)'z')) { + uint8_t dn = (drive & 0x1f) - 1; + update_status(dn); + if (drives[dn].flags & (PRESENT | DISK_IN)) { + read_sectors(dn, 0, 2, buffer); + if ((*(uint32_t *)&buffer[0x200] == 0x20494645) &&//EFI + (*(uint32_t *)&buffer[0x204] == 0x54524150)) //PART + part_info[dn].format = gpt_parse_pt(dn, buffer) ? GPT : UNKNOWN; + ; + } + else { + part_info[dn].format = NOT_PRESENT; + part_info[dn].n_partitions = 0; + } + } }
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