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fat_io_lib finally works, implement virtual partition devices, manage devices via string keys
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Kamil Kowalczyk
2026-03-01 00:00:27 +01:00
parent baa13fb695
commit 0533c2705d
37 changed files with 619 additions and 139 deletions
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13
kernel/syscall/syscall.c
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@@ -216,7 +216,7 @@ DEFINE_SYSCALL (sys_mail_receive) {
DEFINE_SYSCALL (sys_device_do) {
struct limine_hhdm_response* hhdm = limine_hhdm_request.response;
int device_id = (int)a1;
uintptr_t uvaddr_key = a1;
int cmd = (int)a2;
uintptr_t ua1 = a3, ka1 = 0;
uintptr_t ua2 = a4, ka2 = 0;
@@ -229,6 +229,15 @@ DEFINE_SYSCALL (sys_device_do) {
spin_lock (&proc->procgroup->lock);
out_paddr = mm_v2p (&proc->procgroup->pd, uvaddr_key);
if (out_paddr == 0) {
spin_unlock (&proc->procgroup->lock);
return SYSRESULT (-ST_BAD_ADDRESS_SPACE);
}
const char* key = (const char*)((uintptr_t)hhdm->offset + out_paddr);
out_paddr = mm_v2p (&proc->procgroup->pd, ua1);
if (out_paddr != 0)
ka1 = (uintptr_t)hhdm->offset + out_paddr;
@@ -247,7 +256,7 @@ DEFINE_SYSCALL (sys_device_do) {
spin_unlock (&proc->procgroup->lock);
struct device* device = device_find (device_id);
struct device* device = device_find (key);
if (device == NULL)
return SYSRESULT (-ST_NOT_FOUND);