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RTL8139 Link status: full/half duplex detection.

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git-svn-id: svn://kolibrios.org@6227 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
hidnplayr 2016-02-14 22:17:37 +00:00
parent 9e50258683
commit 1486250609
1 changed files with 29 additions and 28 deletions
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57
drivers/ethernet/RTL8139.asm
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@ -1,6 +1,6 @@
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
;; Copyright (C) KolibriOS team 2004-2016. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;; Realtek 8139 driver for KolibriOS ;;
@ -58,7 +58,7 @@ include '../netdrv.inc'
REG_MPC = 0x4c ; missed packet counter
REG_9346CR = 0x50 ; serial eeprom 93C46 command register
REG_CONFIG1 = 0x52 ; configuration register 1
REG_MSR = 0x58
REG_MSR = 0x58 ; Media Status register
REG_CONFIG4 = 0x5a ; configuration register 4
REG_HLTCLK = 0x5b ; undocumented halt clock register
REG_BMCR = 0x62 ; basic mode control register
@ -143,6 +143,7 @@ include '../netdrv.inc'
EE_93C46_CMD_LENGTH = 9 ; start bit + cmd + 6bit address
EE_93C56_CMD_LENGTH = 11 ; start bit + cmd + 8bit ddress
; See chapter "5.7 Transmit Configuration Register" of RTL8139D(L).pdf
VER_RTL8139 = 1100000b
VER_RTL8139A = 1110000b
VER_RTL8139AG = 1110100b
@ -616,7 +617,7 @@ reset:
; Set the mtu, kernel will be able to send now
mov [ebx + device.mtu], 1514
call cable
call link
; Indicate that we have successfully reset the card
xor eax, eax
@ -945,7 +946,7 @@ int_handler:
set_io [ebx + device.io_addr], 0
set_io [ebx + device.io_addr], REG_ISR
mov ax, ISR_FIFOOVW or ISR_RXOVW
mov ax, ISR_FIFOOVW or ISR_RXOVW or ISR_ROK
out dx, ax
pop ax
@ -957,7 +958,7 @@ int_handler:
DEBUGF 1, "Packet underrun or link changed!\n"
call cable
call link
;----------------------------------------------------
; Receive FIFO overflow ?
@ -970,7 +971,7 @@ int_handler:
set_io [ebx + device.io_addr], 0
set_io [ebx + device.io_addr], REG_ISR
mov ax, ISR_FIFOOVW or ISR_RXOVW
mov ax, ISR_FIFOOVW or ISR_RXOVW or ISR_ROK
out dx, ax
pop ax
@ -982,7 +983,7 @@ int_handler:
DEBUGF 2, "Cable length changed!\n"
call cable
call link
.fail:
pop edi esi ebx
@ -994,45 +995,45 @@ int_handler:
;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Update Cable status ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Check link status ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;
align 4
cable:
link:
DEBUGF 1, "Checking link status:\n"
set_io [ebx + device.io_addr], 0
set_io [ebx + device.io_addr], REG_MSR
in al, dx
in ax, dx
test al, 1 shl 2 ; 0 = link ok 1 = link fail
jnz .notconnected
mov ecx, ETH_LINK_10M
test al, 1 shl 3 ; 0 = 100 Mbps 1 = 10 Mbps
jnz .10mbps
jnz @f
mov ecx, ETH_LINK_100M
@@:
.100mbps:
mov [ebx + device.state], ETH_LINK_100M
set_io [ebx + device.io_addr], REG_BMCR
in ax, dx
test ax, 1 shl 8 ; Duplex mode
jz @f
or ecx, ETH_LINK_FD
@@:
mov [ebx + device.state], ecx
invoke NetLinkChanged
DEBUGF 2, "link changed to 100 mbit\n"
ret
.10mbps:
mov [ebx + device.state], ETH_LINK_10M
invoke NetLinkChanged
DEBUGF 2, "link changed to 10 mbit\n"
DEBUGF 2, "link is up\n"
ret
.notconnected:
mov [ebx + device.state], ETH_LINK_DOWN
invoke NetLinkChanged
DEBUGF 2, "no link\n"
DEBUGF 2, "link is down\n"
ret