Burer/kolibrios
1
0
Fork 0
forked from KolibriOS/kolibrios
Code Pull Requests Activity

kolibri-ahci:

Browse Source 
- added FIS structures
- shorten some names in HBA_MEM structure

git-svn-id: svn://kolibrios.org@9064 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Rustem Gimadutdinov (rgimad) 2021-07-13 17:09:18 +00:00
parent d2c9bf489c
commit a8fd8dac68
1 changed files with 171 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

170
kernel/branches/kolibri-ahci/blkdev/ahci.inc
View File

@ -27,7 +27,17 @@ AHCI_HBA_PORT_IPM_ACTIVE = 1
AHCI_HBA_PxSSTS_DET_PRESENT = 3
AHCI_MAX_PORTS = 32 ;
HBA_MEMORY_SIZE = 0x1100
;HBA_MEMORY_SIZE = 0x1100
; Frame Information Structure Types
FIS_TYPE_REG_H2D = 0x27 ; Register FIS - host to device
FIS_TYPE_REG_D2H = 0x34 ; Register FIS - device to host
FIS_TYPE_DMA_ACT = 0x39 ; DMA activate FIS - device to host
FIS_TYPE_DMA_SETUP = 0x41 ; DMA setup FIS - bidirectional
FIS_TYPE_DATA = 0x46 ; Data FIS - bidirectional
FIS_TYPE_BIST = 0x58 ; BIST activate FIS - bidirectional
FIS_TYPE_PIO_SETUP = 0x5F ; PIO setup FIS - device to host
FIS_TYPE_DEV_BITS = 0xA1 ; Set device bits FIS - device to host
struct AHCI_DATA
abar dd ? ; pointer to HBA Memory (BAR5) mapped to virtual kernelspace memory
@ -36,16 +46,16 @@ ends
; Generic Host Control registers
struct HBA_MEM
capability dd ? ; 0x00
global_host_control dd ? ; 0x04
interrupt_status dd ? ; 0x08
port_implemented dd ? ; 0x0C
version dd ? ; 0x10
cap dd ? ; 0x00, Host capabilities
ghc dd ? ; 0x04, Global host control
is dd ? ; 0x08, Interrupt status
pi dd ? ; 0x0C, Port implemented
version dd ? ; 0x10, Version
ccc_ctl dd ? ; 0x14, Command completion coalescing control
ccc_pts dd ? ; 0x18, Command completion coalescing ports
em_loc dd ? ; 0x1C, Enclosure management location
em_ctl dd ? ; 0x20, Enclosure management control
capability2 dd ? ; 0x24, Host capabilities extended
cap2 dd ? ; 0x24, Host capabilities extended
bohc dd ? ; 0x28, BIOS/OS handoff control and status
reserved rb (0xA0-0x2C) ; 0x2C - 0x9F, Reserved
vendor rb (0x100-0xA0) ; 0xA0 - 0xFF, Vendor specific
@ -75,12 +85,134 @@ struct HBA_PORT
vendor rd 4 ; 0x70 - 0x7F, vendor specific
ends
; Register FIS – Host to Device
struct FIS_REG_H2D
fis_type db ? ; FIS_TYPE_REG_H2D
_flags db ? ; 0bCRRRPPPP, C - 1: Command, 0: Control
; R - Reserved, P - Port multiplier
command db ? ; Command register
featurel db ? ; Feature register, 7:0
lba0 db ? ; LBA low register, 7:0
lba1 db ? ; LBA mid register, 15:8
lba2 db ? ; LBA high register, 23:16
device db ? ; Device register
lba3 db ? ; LBA register, 31:24
lba4 db ? ; LBA register, 39:32
lba5 db ? ; LBA register, 47:40
featureh db ? ; Feature register, 15:8
countl db ? ; Count register, 7:0
counth db ? ; Count register, 15:8
icc db ? ; Isochronous command completion
control db ? ; Control register
rsv1 rb 4 ; Reserved
ends
; Register FIS – Device to Host
struct FIS_REG_D2H
fis_type db ? ; FIS_TYPE_REG_D2H
_flags db ? ; 0bRIRPPPP, P - Port multiplier, R - Reserved
; I - Interrupt bit
status db ? ; Status register
error db ? ; Error register
lba0 db ? ; LBA low register, 7:0
lba1 db ? ; LBA mid register, 15:8
lba2 db ? ; LBA high register, 23:16
device db ? ; Device register
lba3 db ? ; LBA register, 31:24
lba4 db ? ; LBA register, 39:32
lba5 db ? ; LBA register, 47:40
rsv2 db ? ; Reserved
countl db ? ; Count register, 7:0
counth db ? ; Count register, 15:8
rsv3 rb 2 ; Reserved
rsv4 rb 4 ; Reserved
ends
; Data FIS – Bidirectional
struct FIS_DATA
fis_type db ? ; FIS_TYPE_DATA
_flags db ? ; 0bRRRRPPPP, R - Reserved, P - Port multiplier
rsv1 rb 2 ; Reserved
; DWORD 1 ~ N (?)
data rd 1 ; Payload
ends
; PIO Setup – Device to Host
struct FIS_PIO_SETUP
fis_type db ? ; FIS_TYPE_PIO_SETUP
_flags db ? ; 0bRIDRPPPP, P - Port multiplier, R - Reserved
; I - Interrupt bit, D - Data transfer direction, 1 - device to host
status db ? ; Status register
error db ? ; Error register
lba0 db ? ; LBA low register, 7:0
lba1 db ? ; LBA mid register, 15:8
lba2 db ? ; LBA high register, 23:16
device db ? ; Device register
lba3 db ? ; LBA register, 31:24
lba4 db ? ; LBA register, 39:32
lba5 db ? ; LBA register, 47:40
rsv2 db ? ; Reserved
countl db ? ; Count register, 7:0
counth db ? ; Count register, 15:8
rsv3 db ? ; Reserved
e_status db ? ; New value of status register
tc dw ? ; Transfer count
rsv4 rb 2 ; Reserved
ends
; DMA Setup – Device to Host
struct FIS_DMA_SETUP
fis_type db ? ; FIS_TYPE_DMA_SETUP
_flags db ? ; 0bAIDRPPPP, A - Auto-activate. Specifies if DMA Activate FIS is needed,
; I - Interrupt bit, D - Data transfer direction, 1 - device to host,
; R - Reserved, P - Port multiplier
rsved rb 2 ; Reserved
DMAbufferID dq ? ; DMA Buffer Identifier.
; Used to Identify DMA buffer in host memory.
; SATA Spec says host specific and not in Spec.
; Trying AHCI spec might work.
TransferCount dd ? ; Number of bytes to transfer. Bit 0 must be 0
resvd dd ? ; Reserved
ends
; Set device bits FIS - device to host
struct FIS_DEV_BITS
fis_type db ? ; FIS_TYPE_DEV_BITS
_flags db ? ; 0bNIRRPPPP, N - Notification, I - Interrupt,
; R - Reserved, P - Port multiplier
status db ? ; Status register
error db ? ; Error register
protocol dd ? ; Protocol
ends
; --------------------------------------------------
uglobal
align 4
ahci_controller AHCI_DATA
endg
; -----------------------------------------------------------------------
; detect ahci controller and initialize
align 4
init_ahci:
@ -147,14 +279,14 @@ init_ahci:
; ; Print some register values to debug board
; mov esi, [ahci_controller + AHCI_DATA.abar]
; DEBUGF 1, "K: AHCI: HBA.cap = %x, HBA.ghc = %x, HBA_MEM.version = %x\n", [esi + HBA_MEM.capability], [esi + HBA_MEM.global_host_control], [esi + HBA_MEM.version]
; 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]
;mov ebx, [esi + HBA_MEM.capability2]
;mov ebx, [esi + HBA_MEM.cap2]
;DEBUGF 1, "K: AHCI: HBA_MEM.cap2 = %x\n", ebx
bt [esi + HBA_MEM.capability2], bit_AHCI_HBA_CAP2_BOH
bt [esi + HBA_MEM.cap2], bit_AHCI_HBA_CAP2_BOH
jnc .end_handoff
DEBUGF 1, "K: AHCI: requesting AHCI ownership change...\n"
bts [esi + HBA_MEM.bohc], bit_AHCI_HBA_BOHC_OOS
@ -179,21 +311,21 @@ init_ahci:
;-------------------------------------------------------
; enable the AHCI and reset it
bts [esi + HBA_MEM.global_host_control], bit_AHCI_HBA_GHC_AHCI_ENABLE
bts [esi + HBA_MEM.global_host_control], bit_AHCI_HBA_GHC_RESET
bts [esi + HBA_MEM.ghc], bit_AHCI_HBA_GHC_AHCI_ENABLE
bts [esi + HBA_MEM.ghc], bit_AHCI_HBA_GHC_RESET
; wait for reset to complete
.wait_reset:
bt [esi + HBA_MEM.global_host_control], bit_AHCI_HBA_GHC_RESET
bt [esi + HBA_MEM.ghc], bit_AHCI_HBA_GHC_RESET
jc .wait_reset
; enable the AHCI and interrupts
bts [esi + HBA_MEM.global_host_control], bit_AHCI_HBA_GHC_AHCI_ENABLE
bts [esi + HBA_MEM.global_host_control], bit_AHCI_HBA_GHC_INTERRUPT_ENABLE
bts [esi + HBA_MEM.ghc], bit_AHCI_HBA_GHC_AHCI_ENABLE
bts [esi + HBA_MEM.ghc], bit_AHCI_HBA_GHC_INTERRUPT_ENABLE
mov ebx, 2
call delay_hs
DEBUGF 1, "K: AHCI: caps: %x %x, ver: %x, ghc: %x, pi: %x\n", [esi + HBA_MEM.capability], [esi + HBA_MEM.capability2], [esi + HBA_MEM.version], [esi + HBA_MEM.global_host_control], [esi + HBA_MEM.port_implemented]
DEBUGF 1, "K: AHCI: caps: %x %x, ver: %x, ghc: %x, pi: %x\n", [esi + HBA_MEM.cap], [esi + HBA_MEM.cap2], [esi + HBA_MEM.version], [esi + HBA_MEM.ghc], [esi + HBA_MEM.pi]
; TODO:
; calculate irq line
@ -207,7 +339,7 @@ init_ahci:
jae .end_detect_drives
; if port with index ebx is not implemented then go to next
mov ecx, [esi + HBA_MEM.port_implemented]
mov ecx, [esi + HBA_MEM.pi]
bt ecx, ebx
jnc .continue_detect_drives
@ -236,7 +368,7 @@ init_ahci:
inc ebx
jmp .detect_drives
; TODO: why signatures of found disks are 0xFFFFFFFF ?
.end_detect_drives: