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kolibri-ahci:

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- optimized signature checking

git-svn-id: svn://kolibrios.org@9135 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Rustem Gimadutdinov (rgimad) 2021-08-14 13:59:08 +00:00
parent a85d76349a
commit b8a5378080
1 changed files with 15 additions and 16 deletions
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31
kernel/branches/kolibri-ahci/blkdev/ahci.inc
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@ -504,29 +504,28 @@ ahci_init:
; DEBUGF 1, "K: AHCI: After REBASING, signature = 0x%x\n", [edi + HBA_PORT.signature] ; DEBUGF 1, "K: AHCI: After REBASING, signature = 0x%x\n", [edi + HBA_PORT.signature]
; Determine drive type by checking port signature
.switch_sig: .switch_sig:
cmp [edi + HBA_PORT.signature], SATA_SIG_ATA cmp [edi + HBA_PORT.signature], SATA_SIG_ATA
jne @f mov eax, AHCI_DEV_SATA
mov [ecx + PORT_DATA.drive_type], AHCI_DEV_SATA jz .end_switch_sig
jmp .end_switch_sig
@@:
cmp [edi + HBA_PORT.signature], SATA_SIG_ATAPI cmp [edi + HBA_PORT.signature], SATA_SIG_ATAPI
jne @f mov eax, AHCI_DEV_SATAPI
mov [ecx + PORT_DATA.drive_type], AHCI_DEV_SATAPI jz .end_switch_sig
jmp .end_switch_sig
@@:
cmp [edi + HBA_PORT.signature], SATA_SIG_SEMB cmp [edi + HBA_PORT.signature], SATA_SIG_SEMB
jne @f mov eax, AHCI_DEV_SEMB
mov [ecx + PORT_DATA.drive_type], AHCI_DEV_SEMB jz .end_switch_sig
jmp .end_switch_sig
@@:
cmp [edi + HBA_PORT.signature], SATA_SIG_PM cmp [edi + HBA_PORT.signature], SATA_SIG_PM
jne @f mov eax, AHCI_DEV_PM
mov [ecx + PORT_DATA.drive_type], AHCI_DEV_PM jz .end_switch_sig
jmp .end_switch_sig
@@:
DEBUGF 1, "Unknown device signature\n" DEBUGF 1, "Unknown device signature\n"
mov eax, AHCI_DEV_NULL
.end_switch_sig: .end_switch_sig:
mov [ecx + PORT_DATA.drive_type], eax
DEBUGF 1, "K: AHCI: found drive on port %u: TYPE = %u\n", ebx, [ecx + PORT_DATA.drive_type] DEBUGF 1, "K: AHCI: found drive on port %u: TYPE = %u\n", ebx, [ecx + PORT_DATA.drive_type]