XenOn/kolibrios-fun
1
1
Fork 0
forked from KolibriOS/kolibrios
Code Pull Requests Wiki Activity

kolibri-ahci: sync with trunk

Browse Source 
git-svn-id: svn://kolibrios.org@9264 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Rustem Gimadutdinov (rgimad) 2021-11-14 10:30:27 +00:00
parent 2b790ca52d
commit a5f6a10b43
1 changed files with 60 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

84
kernel/branches/kolibri-ahci/blkdev/ahci.inc
View File

@ -314,10 +314,25 @@ ends
; --------------------------------------------------
uglobal
align 4
ahci_controller AHCI_DATA
port_data_arr rb (sizeof.PORT_DATA*AHCI_MAX_PORTS)
ahci_mutex MUTEX
struct SD_DATA
ahci_controller AHCI_DATA
port_data_arr rb (sizeof.PORT_DATA*AHCI_MAX_PORTS)
ahci_mutex MUTEX
ends
sd1_data SD_DATA
sd2_data SD_DATA
sd3_data SD_DATA
sd4_data SD_DATA
sd5_data SD_DATA
sd6_data SD_DATA
sd7_data SD_DATA
sd8_data SD_DATA
sd_data dd ?
endg
iglobal
@ -332,19 +347,20 @@ ahci_callbacks:
dd 0 ; no flush function
dd 0 ; use default cache size
.end:
hd_name db 'hd', 0, 0, 0
hd_counter dd 0
hd_name db 'sd', 0, 0, 0
sd_counter dd 0
controllers_counter dd 0
endg
; -----------------------------------------------------------------------
; detect ahci controller and initialize
align 4
ahci_init:
mov ecx, ahci_mutex
call mutex_init
mov ecx, ahci_controller
mov ecx, sd1_data.ahci_controller
mov esi, pcidev_list
mov [sd_data], sd1_data
mov [sd_counter], 0
.find_ahci_ctr:
mov esi, [esi + PCIDEV.fd]
cmp esi, pcidev_list
@ -361,7 +377,15 @@ ahci_init:
ret
.ahci_ctr_found:
mov [ahci_controller + AHCI_DATA.pcidev], esi
push esi
mov ecx, [sd_data]
add ecx, SD_DATA.ahci_mutex
call mutex_init
mov ecx, [sd_data]
add ecx, SD_DATA.ahci_controller
mov [ecx + AHCI_DATA.pcidev], esi
mov eax, [esi+PCIDEV.class]
movzx ebx, byte [esi+PCIDEV.bus]
@ -387,7 +411,11 @@ ahci_init:
; Map MMIO region to virtual memory
stdcall map_io_mem, edi, eax, PG_SWR + PG_NOCACHE
mov [ahci_controller + AHCI_DATA.abar], eax
push ecx
mov ecx, [sd_data]
add ecx, SD_DATA.ahci_controller
mov [ecx + AHCI_DATA.abar], eax
pop ecx
DEBUGF 1, "K: AHCI controller BAR5 mapped to virtual addr %x\n", eax
; Restore the original BAR5 value
@ -405,12 +433,16 @@ ahci_init:
stdcall pci_write32, ebx, ebp, PCI_REG_STATUS_COMMAND, eax
; ; Print some register values to debug board
; mov esi, [ahci_controller + AHCI_DATA.abar]
; mov esi, [[sd_data].ahci_controller + AHCI_DATA.abar]
; DEBUGF 1, "K: AHCI: HBA.cap = %x, HBA.ghc = %x, HBA_MEM.version = %x\n", [esi + HBA_MEM.cap], [esi + HBA_MEM.ghc], [esi + HBA_MEM.version]
;-------------------------------------------------------
; Request BIOS/OS ownership handoff, if supported. (TODO check correctness)
mov esi, [ahci_controller + AHCI_DATA.abar]
push ecx
mov ecx, [sd_data]
add ecx, SD_DATA.ahci_controller
mov esi, [ecx + AHCI_DATA.abar]
pop ecx
;mov ebx, [esi + HBA_MEM.cap2]
;DEBUGF 1, "K: AHCI: HBA_MEM.cap2 = %x\n", ebx
bt [esi + HBA_MEM.cap2], bit_AHCI_HBA_CAP2_BOH
@ -460,7 +492,6 @@ ahci_init:
; IDT::RegisterInterruptHandler(irq, InterruptHandler);
; ahciHBA->is = 0xffffffff;
mov [hd_counter], 0
xor ebx, ebx
.detect_drives:
cmp ebx, AHCI_MAX_PORTS
@ -534,7 +565,8 @@ ahci_init:
mov ecx, ebx
imul ecx, sizeof.PORT_DATA
add ecx, port_data_arr
mov ecx, [sd_data]
add ecx, SD_DATA.port_data_arr
stdcall ahci_port_rebase, edi, ebx, ecx
; DEBUGF 1, "K: AHCI: After REBASING, signature = 0x%x\n", [edi + HBA_PORT.signature]
@ -573,11 +605,11 @@ ahci_init:
;stdcall ahci_read_first_sector, ecx
push ecx
mov eax, [hd_counter]
inc [hd_counter]
mov eax, [sd_counter]
inc [sd_counter]
xor edx, edx
mov ecx, 10
div ecx ; eax = hd_counter / 10, edx = hd_counter % 10
div ecx ; eax = sd_counter / 10, edx = sd_counter % 10
test eax, eax
jz .concat_one
add al, '0'
@ -615,8 +647,12 @@ ahci_init:
.end_detect_drives:
pop esi
add [sd_data], sizeof.SD_DATA
inc [controllers_counter]
cmp [controllers_counter], 8
jnz .find_ahci_ctr
DEBUGF 1, "AHCI: reached controllers number limit\n"
ret
; -------------------------------------------------
@ -1023,7 +1059,7 @@ proc ahci_read stdcall pdata: dword, buffer: dword, startsector: qword, numsecto
pushad
mov ecx, ahci_mutex
mov ecx, sd1_data.ahci_mutex
call mutex_lock
mov eax, [numsectors_ptr]
@ -1061,7 +1097,7 @@ proc ahci_read stdcall pdata: dword, buffer: dword, startsector: qword, numsecto
jmp .read_loop
.read_loop_end:
mov ecx, ahci_mutex
mov ecx, sd1_data.ahci_mutex
call mutex_unlock
popad
@ -1078,7 +1114,7 @@ proc ahci_write stdcall pdata: dword, buffer: dword, startsector: qword, numsect
pushad
mov ecx, ahci_mutex
mov ecx, sd1_data.ahci_mutex
call mutex_lock
mov eax, [numsectors_ptr]
@ -1107,7 +1143,7 @@ proc ahci_write stdcall pdata: dword, buffer: dword, startsector: qword, numsect
jmp .write_loop
.write_loop_end:
mov ecx, ahci_mutex
mov ecx, sd1_data.ahci_mutex
call mutex_unlock
popad
@ -1341,7 +1377,7 @@ ahci_find_cmdslot:
mov ebx, [eax + HBA_PORT.sata_active]
or ebx, [eax + HBA_PORT.command_issue] ; ebx = slots
mov esi, [ahci_controller + AHCI_DATA.abar]
mov esi, [sd1_data.ahci_controller + AHCI_DATA.abar]
mov edx, [esi + HBA_MEM.cap]
shr edx, 8
and edx, 0xf