WebSVN – Kolibri OS – Diff – /drivers/usb/ohci.asm



        jmp     .accloop
.accdone:
; debugging output, not needed for work
;       test    eax, 1F0000h
;       jz      @f
;       DEBUGF 1,'K : ohci %x status of port %d is %x\n',esi,ecx,eax
;@@:
; 11c. Ignore any events until all ports are powered up.
; They will be processed by ohci_init.
        cmp     [esi+ohci_controller.PoweredUp-sizeof.ohci_controller], 0
        jz      .nextport

proc ohci_process_deferred
        push    ebx edi         ; save used registers to be stdcall
; 1. Initialize the return value.
        push    -1
; 2. Process disconnect events.
; Capture NewConnected mask in the state before disconnect processing;
; IRQ handler could asynchronously signal disconnect+connect event,
; connect events should be handled after disconnect events.
        push    [esi+usb_controller.NewConnected]
        invoke  usbhc_api.usb_disconnect_stage2
; 3. Check for connected devices.
; If there is a connected device which was connected less than
; USB_CONNECT_DELAY ticks ago, plan to wake up when the delay will be over.
; Otherwise, call ohci_new_port.
        mov     edi, [esi+ohci_controller.MMIOBase-sizeof.ohci_controller]
        xor     ecx, ecx
        cmp     [esp], ecx
        jz      .skip_newconnected
.portloop:
        bt      [esp], ecx
        jnc     .noconnect
; If this port is shared with the EHCI companion and we see the connect event,
; then the device is USB1 dropped by EHCI,
; so EHCI has already waited for debounce delay, we can proceed immediately.
        cmp     [esi+ohci_controller.EhciCompanion-sizeof.ohci_controller], 0

        invoke  GetTimerTicks
        sub     eax, [esi+usb_controller.ConnectedTime+ecx*4]
        sub     eax, USB_CONNECT_DELAY
        jge     .connected
        neg     eax
        cmp     [esp+4], eax
        jb      .nextport
        mov     [esp+4], eax
        jmp     .nextport
.connected:
        lock btr [esi+usb_controller.NewConnected], ecx
        jnc     .nextport
        call    ohci_new_port

.nextport:
        inc     ecx
        cmp     ecx, [esi+usb_controller.NumPorts]
        jb      .portloop
.skip_newconnected:
        pop     eax
; 4. Check for end of reset signalling. If so, call ohci_port_after_reset.
        cmp     [esi+usb_controller.ResettingStatus], 2
        jnz     .no_reset_recovery
        invoke  GetTimerTicks
        sub     eax, [esi+usb_controller.ResetTime]

Rev 4547	Rev 5246
Line 851...	Line 851...
851	jmp .accloop	851	jmp .accloop
852	.accdone:	852	.accdone:
853	; debugging output, not needed for work	853	; debugging output, not needed for work
854	; test eax, 1F0000h	854	; test eax, 1F0000h
855	; jz @f	855	; jz @f
856	; DEBUGF 1,'K : ohci irq [%d] status of port %d is %x\n',[timer_ticks],ecx,eax	856	; DEBUGF 1,'K : ohci %x status of port %d is %x\n',esi,ecx,eax
857	;@@:	857	;@@:
858	; 11c. Ignore any events until all ports are powered up.	858	; 11c. Ignore any events until all ports are powered up.
859	; They will be processed by ohci_init.	859	; They will be processed by ohci_init.
860	cmp [esi+ohci_controller.PoweredUp-sizeof.ohci_controller], 0	860	cmp [esi+ohci_controller.PoweredUp-sizeof.ohci_controller], 0
861	jz .nextport	861	jz .nextport
Line 1321...	Line 1321...
1321	proc ohci_process_deferred	1321	proc ohci_process_deferred
1322	push ebx edi ; save used registers to be stdcall	1322	push ebx edi ; save used registers to be stdcall
1323	; 1. Initialize the return value.	1323	; 1. Initialize the return value.
1324	push -1	1324	push -1
1325	; 2. Process disconnect events.	1325	; 2. Process disconnect events.
-		1326	; Capture NewConnected mask in the state before disconnect processing;
-		1327	; IRQ handler could asynchronously signal disconnect+connect event,
-		1328	; connect events should be handled after disconnect events.
-		1329	push [esi+usb_controller.NewConnected]
1326	invoke usbhc_api.usb_disconnect_stage2	1330	invoke usbhc_api.usb_disconnect_stage2
1327	; 3. Check for connected devices.	1331	; 3. Check for connected devices.
1328	; If there is a connected device which was connected less than	1332	; If there is a connected device which was connected less than
1329	; USB_CONNECT_DELAY ticks ago, plan to wake up when the delay will be over.	1333	; USB_CONNECT_DELAY ticks ago, plan to wake up when the delay will be over.
1330	; Otherwise, call ohci_new_port.	1334	; Otherwise, call ohci_new_port.
1331	mov edi, [esi+ohci_controller.MMIOBase-sizeof.ohci_controller]	1335	mov edi, [esi+ohci_controller.MMIOBase-sizeof.ohci_controller]
1332	xor ecx, ecx	1336	xor ecx, ecx
1333	cmp [esi+usb_controller.NewConnected], ecx	1337	cmp [esp], ecx
1334	jz .skip_newconnected	1338	jz .skip_newconnected
1335	.portloop:	1339	.portloop:
1336	bt [esi+usb_controller.NewConnected], ecx	1340	bt [esp], ecx
1337	jnc .noconnect	1341	jnc .noconnect
1338	; If this port is shared with the EHCI companion and we see the connect event,	1342	; If this port is shared with the EHCI companion and we see the connect event,
1339	; then the device is USB1 dropped by EHCI,	1343	; then the device is USB1 dropped by EHCI,
1340	; so EHCI has already waited for debounce delay, we can proceed immediately.	1344	; so EHCI has already waited for debounce delay, we can proceed immediately.
1341	cmp [esi+ohci_controller.EhciCompanion-sizeof.ohci_controller], 0	1345	cmp [esi+ohci_controller.EhciCompanion-sizeof.ohci_controller], 0
Line 1346...	Line 1350...
1346	invoke GetTimerTicks	1350	invoke GetTimerTicks
1347	sub eax, [esi+usb_controller.ConnectedTime+ecx*4]	1351	sub eax, [esi+usb_controller.ConnectedTime+ecx*4]
1348	sub eax, USB_CONNECT_DELAY	1352	sub eax, USB_CONNECT_DELAY
1349	jge .connected	1353	jge .connected
1350	neg eax	1354	neg eax
1351	cmp [esp], eax	1355	cmp [esp+4], eax
1352	jb .nextport	1356	jb .nextport
1353	mov [esp], eax	1357	mov [esp+4], eax
1354	jmp .nextport	1358	jmp .nextport
1355	.connected:	1359	.connected:
1356	lock btr [esi+usb_controller.NewConnected], ecx	1360	lock btr [esi+usb_controller.NewConnected], ecx
1357	jnc .nextport	1361	jnc .nextport
1358	call ohci_new_port	1362	call ohci_new_port
Line 1360...	Line 1364...
1360	.nextport:	1364	.nextport:
1361	inc ecx	1365	inc ecx
1362	cmp ecx, [esi+usb_controller.NumPorts]	1366	cmp ecx, [esi+usb_controller.NumPorts]
1363	jb .portloop	1367	jb .portloop
1364	.skip_newconnected:	1368	.skip_newconnected:
-		1369	pop eax
1365	; 4. Check for end of reset signalling. If so, call ohci_port_after_reset.	1370	; 4. Check for end of reset signalling. If so, call ohci_port_after_reset.
1366	cmp [esi+usb_controller.ResettingStatus], 2	1371	cmp [esi+usb_controller.ResettingStatus], 2
1367	jnz .no_reset_recovery	1372	jnz .no_reset_recovery
1368	invoke GetTimerTicks	1373	invoke GetTimerTicks
1369	sub eax, [esi+usb_controller.ResetTime]	1374	sub eax, [esi+usb_controller.ResetTime]

Subversion Repositories Kolibri OS

(root)/drivers/usb/ohci.asm – Rev 4547 → 5246