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Expose raw reads/writes to store devs via dev interface

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This commit is contained in:
Kamil Kowalczyk
2025-10-20 00:00:53 +02:00
parent ff33afbb2a
commit e8d8e5e9f9
2 changed files with 72 additions and 0 deletions
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50
kernel/storedev/storedev.c
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@ -12,6 +12,7 @@
#include "hshtb.h"
#include "hal/hal.h"
#include "randcrypto/uniqid.h"
#include "sysdefs/dev.h"
StoreDevList STOREDEV_LIST;
@ -24,6 +25,50 @@ void storedev_init(void) {
ata_probe();
}
int32_t storedev_dev_read(Dev *dev, uint8_t *buffer, size_t len, uint64_t pid) {
(void)pid;
StoreDev *sd = (StoreDev *)dev->extra;
if (len != sizeof(StoreDevRead)) {
return E_INVALIDARGUMENT;
}
StoreDevRead *cfg = (StoreDevRead *)buffer;
return sd->read(sd, cfg->buffer, cfg->sector, cfg->off, cfg->size);
}
int32_t storedev_dev_write(Dev *dev, uint8_t *buffer, size_t len, uint64_t pid) {
(void)pid;
StoreDev *sd = (StoreDev *)dev->extra;
if (len != sizeof(StoreDevRead)) {
return E_INVALIDARGUMENT;
}
StoreDevWrite *cfg = (StoreDevWrite *)buffer;
return sd->write(sd, cfg->buffer, cfg->sector, cfg->off, cfg->size);
}
int32_t storedev_dev_seccount(Dev *dev, uint8_t *buffer, size_t len, uint64_t pid) {
(void)pid;
StoreDev *sd = (StoreDev *)dev->extra;
return (int32_t)(sd->capacity(sd) / sd->sectorsize);
}
int32_t storedev_dev_sectsize(Dev *dev, uint8_t *buffer, size_t len, uint64_t pid) {
(void)pid;
StoreDev *sd = (StoreDev *)dev->extra;
return (int32_t)sd->sectorsize;
}
void storedev_register_dev_entry(StoreDev *sd, char *name, int32_t sdtype) {
spinlock_acquire(&DEVTABLE.spinlock);
Dev *dev = NULL;
@ -37,6 +82,11 @@ void storedev_register_dev_entry(StoreDev *sd, char *name, int32_t sdtype) {
spinlock_init(&dev->spinlock);
dev->extra = (void *)sd;
dev->fns[DEV_STOREDEV_READ] = &storedev_dev_read;
dev->fns[DEV_STOREDEV_WRITE] = &storedev_dev_write;
dev->fns[DEV_STOREDEV_SECCOUNT] = &storedev_dev_seccount;
dev->fns[DEV_STOREDEV_SECTSIZE] = &storedev_dev_sectsize;
}
void storedev_unregister_dev_entry(Dev *dev) {