kamkow1/mop3
1
1
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

fat_io_lib finally works, implement virtual partition devices, manage devices via string keys
All checks were successful
Build documentation / build-and-deploy (push) Successful in 3m35s
Details

Browse Source
This commit is contained in:
Kamil Kowalczyk
2026-03-01 00:00:27 +01:00
parent baa13fb695
commit 0533c2705d
37 changed files with 619 additions and 139 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
kernel/device/ramdrv.c
View File

@@ -1,12 +1,13 @@
#include <device/device.h>
#include <device/partitions.h>
#include <device/ramdrv.h>
#include <devices.h>
#include <libk/align.h>
#include <libk/std.h>
#include <libk/string.h>
#include <mm/liballoc.h>
#include <status.h>
#include <sys/debug.h>
#include <xdrv_device.h>
bool ramdrv_init (struct device* device, void* arg) {
struct ramdrv_init* init = arg;
@@ -45,7 +46,7 @@ void ramdrv_fini (struct device* device) {
int ramdrv_get_device_type (struct device* device, struct proc* proc, struct reschedule_ctx* rctx,
void* a1, void* a2, void* a3, void* a4) {
(void)device, (void)a2, (void)a3, (void)a4;
(void)proc, (void)rctx, (void)device, (void)a2, (void)a3, (void)a4;
if (a1 == NULL)
return -ST_BAD_ADDRESS_SPACE;
@@ -59,7 +60,7 @@ int ramdrv_get_device_type (struct device* device, struct proc* proc, struct res
int ramdrv_get_size (struct device* device, struct proc* proc, struct reschedule_ctx* rctx,
void* a1, void* a2, void* a3, void* a4) {
(void)a2, (void)a3, (void)a4;
(void)proc, (void)rctx, (void)a2, (void)a3, (void)a4;
if (a1 == NULL)
return -ST_BAD_ADDRESS_SPACE;
@@ -75,7 +76,7 @@ int ramdrv_get_size (struct device* device, struct proc* proc, struct reschedule
int ramdrv_get_sector_size (struct device* device, struct proc* proc, struct reschedule_ctx* rctx,
void* a1, void* a2, void* a3, void* a4) {
(void)a2, (void)a3, (void)a4;
(void)proc, (void)rctx, (void)a2, (void)a3, (void)a4;
if (a1 == NULL)
return -ST_BAD_ADDRESS_SPACE;
@@ -108,3 +109,23 @@ int ramdrv_read (struct device* device, struct proc* proc, struct reschedule_ctx
return ST_OK;
}
int ramdrv_write (struct device* device, struct proc* proc, struct reschedule_ctx* rctx, void* a1,
void* a2, void* a3, void* a4) {
(void)proc, (void)rctx, (void)a4;
if (a1 == NULL || a2 == NULL || a3 == NULL)
return -ST_BAD_ADDRESS_SPACE;
size_t sector = *(size_t*)a1;
size_t sector_count = *(size_t*)a2;
uint8_t* buffer = a3;
struct ramdrv* ramdrv = device->udata;
size_t pos = sector * ramdrv->sector_size;
size_t size = sector_count * ramdrv->sector_size;
memcpy ((void*)(((uintptr_t)ramdrv->buffer) + pos), buffer, size);
return ST_OK;
}