| 20,9 → 20,8 |
|---|
| USB_PID_OUT = 0E1h |
| ; UHCI does not support an interrupt on root hub status change. We must poll |
| ; the controller periodically. This is the period in timer ticks (10ms). |
| ; We use the value 100 ms: it is valid value for USB hub poll rate (1-255 ms), |
| ; small enough to be responsible to connect events and large enough to not |
| ; load CPU too often. |
| ; We use the value 100 ticks: it is small enough to be responsible to connect |
| ; events and large enough to not load CPU too often. |
| UHCI_POLL_INTERVAL = 100 |
| ; the following constant is an invalid encoding for length fields in |
| ; uhci_gtd; it is used to check whether an inactive TD has been |
| 1718,9 → 1717,12 |
|---|
| push eax |
| sub eax, sizeof.uhci_gtd |
| call get_phys_addr |
| ; use Depth traversal unless this is the first TD in the transfer stage; |
| ; for Control/Bulk pipes, use Depth traversal unless this is the first TD |
| ; in the transfer stage; |
| ; uhci_insert_transfer will set Depth traversal for the first TD and clear |
| ; it in the last TD |
| test [ebx+usb_pipe.Type], 1 |
| jnz @f |
| cmp ecx, [ebx+usb_pipe.LastTD] |
| jz @f |
| or eax, 4 |
| 1778,7 → 1780,10 |
|---|
| or byte [ecx+uhci_gtd.ControlStatus+3-sizeof.uhci_gtd], 1 shl (24-24) ; set InterruptOnComplete bit |
| mov eax, [esp+4] |
| or byte [eax+uhci_gtd.ControlStatus+2-sizeof.uhci_gtd], 1 shl (23-16) ; set Active bit |
| test [ebx+usb_pipe.Type], 1 |
| jnz @f |
| or byte [eax+uhci_gtd.NextTD-sizeof.uhci_gtd], 4 ; set Depth bit |
| @@: |
| ret |
| endp |
| |