;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;driver sceletone
format MS COFF
API_VERSION equ 0 ;debug
include '../proc32.inc'
include '../imports.inc'
struc UHCI
{
.bus dd ?
.devfn dd ?
.io_base dd ?
.mm_base dd ?
.irq dd ?
.flags dd ?
.reset dd ?
.start dd ?
.stop dd ?
.port_c_suspend dd ?
.resuming_ports dd ?
.rh_state dd ?
.rh_numports dd ?
.is_stopped dd ?
.dead dd ?
.sizeof:
}
virtual at 0
UHCI UHCI
end virtual
struc IOCTL
{ .handle dd ?
.io_code dd ?
.input dd ?
.inp_size dd ?
.output dd ?
.out_size dd ?
}
virtual at 0
IOCTL IOCTL
end virtual
struc TD ;transfer descriptor
{
.link dd ?
.status dd ?
.token dd ?
.buffer dd ?
.addr dd ?
.frame dd ?
.fd dd ?
.bk dd ?
.sizeof:
}
virtual at 0
TD TD
end virtual
public START
public service_proc
public version
DEBUG equ 1
DRV_ENTRY equ 1
DRV_EXIT equ -1
STRIDE equ 4 ;size of row in devices table
SRV_GETVERSION equ 0
section '.flat' code readable align 16
proc START stdcall, state:dword
cmp [state], 1
jne .exit
.entry:
if DEBUG
mov esi, msgInit
call SysMsgBoardStr
end if
call init
stdcall RegService, my_service, service_proc
ret
.fail:
.exit:
xor eax, eax
ret
endp
handle equ IOCTL.handle
io_code equ IOCTL.io_code
input equ IOCTL.input
inp_size equ IOCTL.inp_size
output equ IOCTL.output
out_size equ IOCTL.out_size
align 4
proc service_proc stdcall, ioctl:dword
mov ebx, [ioctl]
mov eax, [ebx+io_code]
cmp eax, SRV_GETVERSION
jne @F
mov eax, [ebx+output]
cmp [ebx+out_size], 4
jne .fail
mov [eax], dword API_VERSION
xor eax, eax
ret
@@:
.fail:
or eax, -1
ret
endp
restore handle
restore io_code
restore input
restore inp_size
restore output
restore out_size
align 4
proc detect
locals
last_bus dd ?
bus dd ?
devfn dd ?
endl
xor eax, eax
mov [bus], eax
inc eax
call PciApi
cmp eax, -1
je .err
mov [last_bus], eax
.next_bus:
and [devfn], 0
.next_dev:
stdcall PciRead32, [bus], [devfn], dword 0
test eax, eax
jz .next
cmp eax, -1
je .next
mov edi, devices
@@:
mov ebx, [edi]
test ebx, ebx
jz .next
cmp eax, ebx
je .found
add edi, STRIDE
jmp @B
.next:
inc [devfn]
cmp [devfn], 256
jb .next_dev
mov eax, [bus]
inc eax
mov [bus], eax
cmp eax, [last_bus]
jna .next_bus
xor eax, eax
ret
.found:
mov eax, UHCI.sizeof
call Kmalloc
test eax, eax
jz .mem_fail
mov ebx, [bus]
mov [eax+UHCI.bus], ebx
mov ecx, [devfn]
mov [eax+UHCI.devfn], ecx
ret
.mem_fail:
if DEBUG
mov esi, msgMemFail
call SysMsgBoardStr
end if
.err:
xor eax, eax
ret
endp
PCI_BASE equ 0x20
USB_LEGKEY equ 0xC0
align 4
proc init
locals
uhci dd ?
endl
call detect
test eax, eax
jz .fail
mov [uhci], eax
stdcall PciRead32, [eax+UHCI.bus], [eax+UHCI.devfn], PCI_BASE
and eax, 0xFFC0
mov esi, [uhci]
mov [esi+UHCI.io_base], eax
stdcall uhci_reset, esi
stdcall finish_reset, [uhci]
.fail:
if DEBUG
mov esi, msgDevNotFound
call SysMsgBoardStr
end if
ret
endp
UHCI_USBINTR equ 4 ; interrupt register
UHCI_USBLEGSUP_RWC equ 0x8f00 ; the R/WC bits
UHCI_USBLEGSUP_RO equ 0x5040 ; R/O and reserved bits
UHCI_USBCMD_RUN equ 0x0001 ; RUN/STOP bit
UHCI_USBCMD_HCRESET equ 0x0002 ; Host Controller reset
UHCI_USBCMD_EGSM equ 0x0008 ; Global Suspend Mode
UHCI_USBCMD_CONFIGURE equ 0x0040 ; Config Flag
UHCI_USBINTR_RESUME equ 0x0002 ; Resume interrupt enable
PORTSC0 equ 0x10
PORTSC1 equ 0x12
UHCI_RH_RESET equ 0
UHCI_RH_SUSPENDED equ 1
UHCI_RH_AUTO_STOPPED equ 2
UHCI_RH_RESUMING equ 3
; In this state the HC changes from running to halted
; so it can legally appear either way.
UHCI_RH_SUSPENDING equ 4
; In the following states it's an error if the HC is halted.
; These two must come last.
UHCI_RH_RUNNING equ 5 ; The normal state
UHCI_RH_RUNNING_NODEVS equ 6 ; Running with no devices
UHCI_IS_STOPPED equ 9999
align 4
proc uhci_reset stdcall, uhci:dword
mov esi, [uhci]
stdcall PciRead16, [esi+UHCI.bus], [esi+UHCI.devfn], USB_LEGKEY
test eax, not (UHCI_USBLEGSUP_RO or UHCI_USBLEGSUP_RWC)
jnz .reset
mov edx, [esi+UHCI.io_base]
in ax, dx
test ax, UHCI_USBCMD_RUN
jnz .reset
test ax, UHCI_USBCMD_CONFIGURE
jz .reset
test ax, UHCI_USBCMD_EGSM
jz .reset
add edx, UHCI_USBINTR
in ax, dx
test ax, not UHCI_USBINTR_RESUME
jnz .reset
ret
.reset:
stdcall PciWrite16, [esi+UHCI.bus], [esi+UHCI.devfn], USB_LEGKEY, UHCI_USBLEGSUP_RWC
mov edx, [esi+UHCI.io_base]
mov ax, UHCI_USBCMD_HCRESET
out dx, ax
xor eax, eax
out dx, ax
add edx, UHCI_USBINTR
out dx, ax
ret
endp
proc finish_reset stdcall, uhci:dword
mov esi, [uhci]
mov edx, [esi+UHCI.io_base]
add edx, PORTSC0
xor eax, eax
out dx, ax
add edx, (PORTSC1-PORTSC0)
out dx, ax
mov [esi+UHCI.port_c_suspend], eax
mov [esi+UHCI.resuming_ports], eax
mov [esi+UHCI.rh_state], UHCI_RH_RESET
mov [esi+UHCI.rh_numports], 2
mov [esi+UHCI.is_stopped], UHCI_IS_STOPPED
; mov [ uhci_to_hcd(uhci)->state = HC_STATE_HALT;
; uhci_to_hcd(uhci)->poll_rh = 0;
mov [esi+UHCI.dead], eax ; Full reset resurrects the controller
ret
endp
proc insert_td stdcall, td:dword, frame:dword
mov edi, [td]
mov eax, [frame]
and eax, -1024
mov [edi+TD.frame], eax
mov ebx, [framelist]
mov edx, [dma_framelist]
shl eax, 5
mov ecx, [eax+ebx]
test ecx, ecx
jz .empty
mov ecx, [ecx+TD.bk] ;last TD
mov edx, [ecx+TD.fd]
mov [edi+TD.fd], edx
mov [edi+TD.bk], ecx
mov [ecx+TD.fd], edi
mov [edx+TD.bk], edi
mov eax, [ecx+TD.link]
mov [edi+TD.link], eax
mov ebx, [edi+TD.addr]
mov [ecx+TD.link], ebx
ret
.empty:
mov ecx, [eax+edx]
mov [edi+TD.link], ecx
mov [ebx+eax], edi
mov ecx, [edi+TD.addr]
mov [eax+edx], ecx
ret
endp
DEVICE_ID equ 0x24D2 ; pci device id
VENDOR_ID equ 0x8086 ; device vendor id
QEMU_USB equ 0x7020
;all initialized data place here
align 4
devices dd (DEVICE_ID shl 16)+VENDOR_ID
dd (QEMU_USB shl 16)+VENDOR_ID
dd 0 ;terminator
version dd (5 shl 16) or (API_VERSION and 0xFFFF)
my_service db 'UHCI',0 ;max 16 chars include zero
msgInit db 'detect hardware...',13,10,0
msgPCI db 'PCI accsess not supported',13,10,0
msgDevNotFound db 'device not found',13,10,0
msgMemFail db 'Kmalloc failed', 10,10,0
;msgFail db 'device not found',13,10,0
section '.data' data readable writable align 16
;all uninitialized data place here