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| author | Benji Dial <benji3.141@gmail.com> | 2020-01-05 22:26:40 -0500 |
|---|---|---|
| committer | Benji Dial <benji3.141@gmail.com> | 2020-01-05 22:26:40 -0500 |
| commit | 243e28075e223bd9be145251161b692873918764 (patch) | |
| tree | b8b2314ae2e7303149780b7bfb25a7e61c6ebcfa /src/kernel/diskio.h | |
| parent | 3ec928b8ca8cbf51310bce62afafe0874e920c24 (diff) | |
| download | portland-os-243e28075e223bd9be145251161b692873918764.tar.gz | |
function to return pointers to functions to read from a constant interface, so we only have to check the interface once per macro operation
Diffstat (limited to 'src/kernel/diskio.h')
| -rw-r--r-- | src/kernel/diskio.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/kernel/diskio.h b/src/kernel/diskio.h index 2f83864..0e16423 100644 --- a/src/kernel/diskio.h +++ b/src/kernel/diskio.h @@ -29,6 +29,11 @@ enum interface { ATA }; +#define N_INTERFACES 3 + +typedef uint32_t (*const read_sectors_t)(uint8_t, uint32_t, uint32_t, void *); +typedef uint32_t (*const write_sectors_t)(uint8_t, uint32_t, uint32_t, void *); + enum drive_flags { SPUN = 0x01, DISK_IN = 0x02, @@ -45,8 +50,8 @@ struct drive_info { struct drive_info drives[26]; -uint32_t read_sectors(uint8_t drive, uint32_t start, uint32_t count, void *buffer); -uint32_t write_sectors(uint8_t drive, uint32_t start, uint32_t count, void *buffer); +read_sectors_t get_read_sectors_function(uint8_t drive); +write_sectors_t get_write_sectors_function(uint8_t drive); void update_status(uint8_t drive); #endif
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