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Bugfix in R6040 driver RX descriptors, cleanup.

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git-svn-id: svn://kolibrios.org@4439 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
hidnplayr 2014-01-10 20:33:38 +00:00
parent 4ebbeeff95
commit c184a722c5
1 changed files with 168 additions and 129 deletions
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121
drivers/ethernet/R6040.asm
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@ -1,6 +1,6 @@
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2013. All rights reserved. ;;
;; Copyright (C) KolibriOS team 2004-2014. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;; R6040 driver for KolibriOS ;;
@ -66,9 +66,17 @@ PHY_CAP = 0x01E1 ;PHY CHIP Register 4
;**************************************************************************
; RDC R6040 Register Definitions
;**************************************************************************
MCR0 = 0x00 ; Control register 0
MCR0_RCVEN = 0x0002 ; Receive enable
MCR0_PROMISC = 0x0020 ; Promiscuous mode
MCR0_HASH_EN = 0x0100 ; Enable multicast hash table function
MCR0_XMTEN = 0x1000 ; Transmission enable
MCR0_FD = 0x8000 ; Full/Half Duplex mode
MCR1 = 0x01 ; Control register 1
MAC_RST = 0x0001 ; Reset the MAC
MBCR = 0x08 ; Bus control
MT_ICR = 0x0C ; TX interrupt control
MR_ICR = 0x10 ; RX interrupt control
@ -76,15 +84,18 @@ MTPR = 0x14 ;TX poll command register
MR_BSR = 0x18 ; RX buffer size
MR_DCR = 0x1A ; RX descriptor control
MLSR = 0x1C ; Last status
MMDIO = 0x20 ; MDIO control register
MDIO_WRITE = 0x4000 ; MDIO write
MDIO_READ = 0x2000 ; MDIO read
MMRD = 0x24 ; MDIO read data register
MMWD = 0x28 ; MDIO write data register
MTD_SA0 = 0x2C ; TX descriptor start address 0
MTD_SA1 = 0x30 ; TX descriptor start address 1
MRD_SA0 = 0x34 ; RX descriptor start address 0
MRD_SA1 = 0x38 ; RX descriptor start address 1
MISR = 0x3C ; Status register
MIER = 0x40 ; INT enable register
MSK_INT = 0x0000 ; Mask off interrupts
@ -96,6 +107,7 @@ TX_FINISH = 0x0010 ;TX finished
TX_EARLY = 0x0080 ; TX early
EVENT_OVRFL = 0x0100 ; Event counter overflow
LINK_CHANGED = 0x0200 ; PHY link changed
ME_CISR = 0x44 ; Event counter INT status
ME_CIER = 0x48 ; Event counter INT enable
MR_CNT = 0x50 ; Successfully received packet counter
@ -224,7 +236,7 @@ proc START stdcall, state:dword
.entry:
DEBUGF 2,"Loading %s driver\n", my_service
DEBUGF 2,"Loading driver\n"
stdcall RegService, my_service, service_proc
ret
@ -415,7 +427,7 @@ ret
align 4
probe:
DEBUGF 2,"Probing R6040 device\n"
DEBUGF 1,"Probing R6040 device\n"
PCI_make_bus_master
@ -438,11 +450,11 @@ probe:
or eax, dword [device.mac]
test eax, eax
jnz @f
DEBUGF 2, "ERROR: MAC address not initialized!\n"
DEBUGF 2, "MAC address not initialized!\n"
@@:
; Init RDC private data
mov [device.mcr0], 0x1002
mov [device.mcr0], MCR0_XMTEN or MCR0_RCVEN
;mov [private.phy_addr], 1 ; Asper: Only one network card is supported now.
mov [device.switch_sig], 0
@ -463,7 +475,7 @@ probe:
call init_rxbufs
; Read the PHY ID
mov [device.phy_mode], 0x8000
mov [device.phy_mode], MCR0_FD
stdcall phy_read, 0, 2
mov [device.switch_sig], ax
cmp ax, ICPLUS_PHY_ID
@ -513,7 +525,7 @@ probe:
align 4
reset:
DEBUGF 2,"Resetting R6040\n"
DEBUGF 1,"Resetting R6040\n"
; Mask off Interrupt
xor ax, ax
@ -525,11 +537,11 @@ reset:
; attach int handler
movzx eax, [device.irq_line]
DEBUGF 2,"Attaching int handler to irq %x\n", eax:1
DEBUGF 1,"Attaching int handler to irq %x\n", eax:1
stdcall AttachIntHandler, eax, int_handler, dword 0
test eax, eax
jnz @f
DEBUGF 2,"\nCould not attach int handler!\n"
DEBUGF 2,"Could not attach int handler!\n"
; or eax, -1
; ret
@@:
@ -600,9 +612,9 @@ reset:
set_io MIER
out dx, ax
;Enable TX and RX
;Enable RX
mov ax, [device.mcr0]
or ax, 0x0002
or ax, MCR0_RCVEN
set_io 0
out dx, ax
@ -670,9 +682,9 @@ init_rxbufs:
.next_desc:
mov [esi + x_head.ndesc], edx
push esi ecx
push esi ecx edx
stdcall KernelAlloc, MAX_BUF_SIZE
pop ecx esi
pop edx ecx esi
mov [esi + x_head.skb_ptr], eax
GetRealAddr
@ -686,7 +698,6 @@ init_rxbufs:
jnz .next_desc
; complete the ring by linking the last to the first
lea eax, [device.rx_ring]
GetRealAddr
mov [device.rx_ring + x_head.sizeof*(RX_RING_SIZE - 1) + x_head.ndesc], eax
@ -751,9 +762,9 @@ phy_mode_chk:
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
align 4
transmit:
DEBUGF 2,"\nTransmitting packet, buffer:%x, size:%u\n", [esp+4], [esp+8]
DEBUGF 1,"Transmitting packet, buffer:%x, size:%u\n", [esp+4], [esp+8]
mov eax, [esp+4]
DEBUGF 2,"To: %x-%x-%x-%x-%x-%x From: %x-%x-%x-%x-%x-%x Type:%x%x\n",\
DEBUGF 1,"To: %x-%x-%x-%x-%x-%x From: %x-%x-%x-%x-%x-%x Type:%x%x\n",\
[eax+00]:2,[eax+01]:2,[eax+02]:2,[eax+03]:2,[eax+04]:2,[eax+05]:2,\
[eax+06]:2,[eax+07]:2,[eax+08]:2,[eax+09]:2,[eax+10]:2,[eax+11]:2,\
[eax+13]:2,[eax+12]:2
@ -768,14 +779,13 @@ transmit:
add edi, ebx
add edi, device.tx_ring - ebx
DEBUGF 2,"TX buffer status: 0x%x\n", [edi + x_head.status]:4
DEBUGF 1,"TX buffer status: 0x%x\n", [edi + x_head.status]:4
test [edi + x_head.status], DSC_OWNER_MAC ; check if buffer is available
jnz .wait_to_send
.do_send:
DEBUGF 2,"Sending now\n"
DEBUGF 1,"Sending now\n"
mov eax, [esp+4]
mov [edi + x_head.skb_ptr], eax
@ -805,7 +815,7 @@ transmit:
.wait_to_send:
DEBUGF 2,"Waiting for TX buffer\n"
DEBUGF 1,"Waiting for TX buffer\n"
call GetTimerTicks ; returns in eax
lea edx, [eax + 100]
@ -818,11 +828,11 @@ transmit:
cmp edx, eax
jb .l2
DEBUGF 1,"Send timeout\n"
DEBUGF 2,"Send timeout\n"
xor eax, eax
dec eax
.fail:
DEBUGF 1,"Send failed\n"
DEBUGF 2,"Send failed\n"
stdcall KernelFree, [esp+4]
or eax, -1
ret 8
@ -842,7 +852,7 @@ int_handler:
push ebx esi edi
DEBUGF 1,"\n%s int\n", my_service
DEBUGF 1,"int\n"
; Find pointer of device wich made IRQ occur
@ -874,7 +884,7 @@ int_handler:
.got_it:
DEBUGF 1,"Device: %x Status: %x ", ebx, ax
DEBUGF 1,"Device: %x Status: %x\n", ebx, ax
push ax
@ -886,24 +896,21 @@ int_handler:
pop ebx
; Find the current RX descriptor
movzx edx, [device.cur_rx]
shl edx, 5
lea edx, [device.rx_ring + edx]
; Check the descriptor status
mov cx, [edx + x_head.status]
test cx, DSC_OWNER_MAC
jnz .no_RX
DEBUGF 2,"packet status=0x%x\n", cx
DEBUGF 1,"packet status=0x%x\n", cx
test cx, DSC_RX_ERR ; Global error status set
jnz .no_RX
; Packet successfully received
movzx ecx, [edx + x_head.len]
and ecx, 0xFFF
sub ecx, 4 ; Do not count the CRC
@ -914,17 +921,15 @@ int_handler:
inc dword[device.packets_rx]
; Push packet size and pointer, kernel will need it..
push ebx
push .more_RX
push ecx
push [edx + x_head.skb_ptr]
DEBUGF 2,"packet ptr=0x%x\n", [edx + x_head.skb_ptr]
DEBUGF 1,"packet ptr=0x%x\n", [edx + x_head.skb_ptr]
; reset the RX descriptor
push edx
stdcall KernelAlloc, MAX_BUF_SIZE
pop edx
@ -934,12 +939,10 @@ int_handler:
mov [edx + x_head.status], DSC_OWNER_MAC
; Use next descriptor next time
inc [device.cur_rx]
and [device.cur_rx], RX_RING_SIZE - 1
; At last, send packet to kernel
jmp Eth_input
@ -959,7 +962,7 @@ int_handler:
cmp [edi + x_head.skb_ptr], 0
je .no_TX
DEBUGF 2,"Freeing buffer 0x%x\n", [edi + x_head.skb_ptr]
DEBUGF 1,"Freeing buffer 0x%x\n", [edi + x_head.skb_ptr]
push [edi + x_head.skb_ptr]
mov [edi + x_head.skb_ptr], 0
@ -971,6 +974,42 @@ int_handler:
jmp .loop_tx
.no_TX:
test word[esp], RX_NO_DESC
jz .no_rxdesc
DEBUGF 2, "No more RX descriptors!\n"
.no_rxdesc:
test word[esp], RX_FIFO_FULL
jz .no_rxfifo
DEBUGF 2, "RX FIFO full!\n"
.no_rxfifo:
test word[esp], RX_EARLY
jz .no_rxearly
DEBUGF 1, "RX early\n"
.no_rxearly:
test word[esp], TX_EARLY
jz .no_txearly
DEBUGF 1, "TX early\n"
.no_txearly:
test word[esp], EVENT_OVRFL
jz .no_ovrfl
DEBUGF 2, "Event counter overflow!\n"
.no_ovrfl:
test word[esp], LINK_CHANGED
jz .no_link
DEBUGF 1, "Link changed\n"
.no_link:
pop ax
pop edi esi ebx
@ -983,7 +1022,7 @@ int_handler:
align 4
init_mac_regs:
DEBUGF 2,"initializing MAC regs\n"
DEBUGF 1,"initializing MAC regs\n"
; MAC operation register
mov ax, 1
@ -1012,7 +1051,7 @@ init_mac_regs:
align 4
proc phy_read stdcall, phy_addr:dword, reg:dword
DEBUGF 2,"PHY read, addr=0x%x reg=0x%x\n", [phy_addr]:8, [reg]:8
DEBUGF 1,"PHY read, addr=0x%x reg=0x%x\n", [phy_addr]:8, [reg]:8
mov eax, [phy_addr]
shl eax, 8
@ -1036,7 +1075,7 @@ proc phy_read stdcall, phy_addr:dword, reg:dword
in ax, dx
and eax, 0xFFFF
DEBUGF 2,"PHY read, val=0x%x\n", eax:4
DEBUGF 1,"PHY read, val=0x%x\n", eax:4
ret
@ -1050,7 +1089,7 @@ endp
align 4
proc phy_write stdcall, phy_addr:dword, reg:dword, val:dword
DEBUGF 2,"PHY write, addr=0x%x reg=0x%x val=0x%x\n", [phy_addr]:8, [reg]:8, [val]:8
DEBUGF 1,"PHY write, addr=0x%x reg=0x%x val=0x%x\n", [phy_addr]:8, [reg]:8, [val]:8
mov eax, [val]
set_io 0
@ -1076,7 +1115,7 @@ proc phy_write stdcall, phy_addr:dword, reg:dword, val:dword
jnz .write
@@:
DEBUGF 2,"PHY write ok\n"
DEBUGF 1,"PHY write ok\n"
ret
endp
@ -1086,7 +1125,7 @@ endp
align 4
read_mac:
DEBUGF 2,"Reading MAC: "
DEBUGF 1,"Reading MAC: "
mov cx, 3
lea edi, [device.mac]
@ -1100,7 +1139,7 @@ read_mac:
dec cx
jnz .mac
DEBUGF 2,"%x-%x-%x-%x-%x-%x\n",[edi-6]:2, [edi-5]:2, [edi-4]:2, [edi-3]:2, [edi-2]:2, [edi-1]:2
DEBUGF 1,"%x-%x-%x-%x-%x-%x\n",[edi-6]:2, [edi-5]:2, [edi-4]:2, [edi-3]:2, [edi-2]:2, [edi-1]:2
ret