forked from KolibriOS/kolibrios
RTL8139: Improved interrupt handeling.
git-svn-id: svn://kolibrios.org@9161 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
hidnplayr
parent
61d6d826c7
commit
3fa8866797
@ -15,6 +15,8 @@
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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; TODO: test for RX-overrun
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format PE DLL native
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entry START
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@ -22,6 +24,8 @@ entry START
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COMPATIBLE_API = 0x0100
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API_VERSION = (COMPATIBLE_API shl 16) + CURRENT_API
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; configureable area
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MAX_DEVICES = 16
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RBLEN = 3 ; Receive buffer size: 0==8K 1==16k 2==32k 3==64k
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@ -35,6 +39,8 @@ entry START
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__DEBUG__ = 1
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__DEBUG_LEVEL__ = 2 ; 1 = verbose, 2 = errors only
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; end configureable area
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section '.flat' readable writable executable
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include '../proc32.inc'
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@ -639,13 +645,13 @@ reset:
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;; Transmit ;;
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;; ;;
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;; In: pointer to device structure in ebx ;;
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;; Out: eax = 0 on success ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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align 16
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proc transmit stdcall bufferptr
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pushf
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cli
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spin_lock_irqsave
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mov esi, [bufferptr]
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DEBUGF 1,"Transmitting packet, buffer:%x, size:%u\n", [bufferptr], [esi + NET_BUFF.length]
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@ -656,9 +662,9 @@ proc transmit stdcall bufferptr
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[eax+13]:2,[eax+12]:2
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cmp [esi + NET_BUFF.length], 1514
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ja .fail
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ja .error
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cmp [esi + NET_BUFF.length], 60
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jb .fail
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jb .error
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; check if we own the current discriptor
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set_io [ebx + device.io_addr], 0
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@ -668,9 +674,8 @@ proc transmit stdcall bufferptr
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add edx, ecx
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in eax, dx
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test eax, (1 shl BIT_OWN)
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jz .wait_to_send
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jz .overrun
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.send_packet:
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; Set the buffer address
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set_io [ebx + device.io_addr], REG_TSAD0
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mov [ebx + device.TX_DESC+ecx], esi
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@ -691,37 +696,29 @@ proc transmit stdcall bufferptr
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; Update stats
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inc [ebx + device.packets_tx]
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mov ecx, [esi + NET_BUFF.length]
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add dword [ebx + device.bytes_tx], ecx
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adc dword [ebx + device.bytes_tx+4], 0
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mov eax, [esi + NET_BUFF.length]
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add dword[ebx + device.bytes_tx], eax
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adc dword[ebx + device.bytes_tx + 4], 0
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DEBUGF 1, "Packet Sent!\n"
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popf
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spin_unlock_irqrestore
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xor eax, eax
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ret
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.wait_to_send:
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DEBUGF 1, "Waiting for timeout\n"
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push edx
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mov esi, 30
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invoke Sleep
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pop edx
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in ax, dx
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test ax, (1 shl BIT_OWN)
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jnz .send_packet
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pusha
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call reset ; if chip hung, reset it
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popa
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jmp .send_packet
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.fail:
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DEBUGF 2, "transmit failed!\n"
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.error:
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DEBUGF 2, "TX packet error\n"
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inc [ebx + device.packets_tx_err]
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invoke NetFree, [bufferptr]
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popf
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spin_unlock_irqrestore
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or eax, -1
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ret
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.overrun:
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DEBUGF 2, "TX overrun\n"
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inc [ebx + device.packets_tx_ovr]
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invoke NetFree, [bufferptr]
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spin_unlock_irqrestore
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or eax, -1
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ret
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@ -736,41 +733,24 @@ endp
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;; Interrupt handler ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;
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align 4
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align 16
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int_handler:
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push ebx esi edi
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DEBUGF 1, "INT\n"
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mov ebx, [esp+4*4]
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DEBUGF 1,"INT for 0x%x\n", ebx
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; find pointer of device wich made IRQ occur
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mov ecx, [devices]
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test ecx, ecx
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jz .nothing
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mov esi, device_list
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.nextdevice:
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mov ebx, [esi]
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; TODO? if we are paranoid, we can check that the value from ebx is present in the current device_list
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set_io [ebx + device.io_addr], 0
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set_io [ebx + device.io_addr], REG_ISR
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in ax, dx ; Get interrupt status
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out dx, ax ; send it back to ACK
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test ax, ax
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jnz .got_it
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.continue:
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add esi, 4
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dec ecx
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jnz .nextdevice
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.nothing:
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pop edi esi ebx
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xor eax, eax
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jz .nothing
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ret ; If no device was found, abort (The irq was probably for a device, not registered to this driver)
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.got_it:
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DEBUGF 1, "Device: %x Status: %x\n", ebx, ax
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out dx, ax ; ACK interrupt
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DEBUGF 1, "Status: %x\n", ax
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;----------------------------------------------------
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; Received packet ok?
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@ -884,10 +864,10 @@ int_handler:
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.finish:
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pop ax
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@@:
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;----------------------------------------------------
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; Transmit ok / Transmit error
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@@:
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test ax, ISR_TOK + ISR_TER
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jz @f
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@ -944,10 +924,10 @@ int_handler:
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sub ecx, 4
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jae .txdescloop
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pop ax
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@@:
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;----------------------------------------------------
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; Rx buffer overflow ?
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@@:
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test ax, ISR_RXOVW
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jz @f
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@ -959,20 +939,20 @@ int_handler:
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mov ax, ISR_FIFOOVW or ISR_RXOVW or ISR_ROK
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out dx, ax
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pop ax
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@@:
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;----------------------------------------------------
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; Packet underrun?
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@@:
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test ax, ISR_PUN
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jz @f
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DEBUGF 1, "Packet underrun or link changed!\n"
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call link
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@@:
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;----------------------------------------------------
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; Receive FIFO overflow ?
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@@:
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test ax, ISR_FIFOOVW
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jz @f
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@ -984,24 +964,29 @@ int_handler:
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mov ax, ISR_FIFOOVW or ISR_RXOVW or ISR_ROK
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out dx, ax
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pop ax
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@@:
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;----------------------------------------------------
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; cable length changed ?
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@@:
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test ax, ISR_LENCHG
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jz .fail
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jz @f
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DEBUGF 2, "Cable length changed!\n"
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call link
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@@:
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.fail:
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pop edi esi ebx
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xor eax, eax
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inc eax
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ret
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.nothing:
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pop edi esi ebx
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xor eax, eax
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ret
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