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PcNET32: General cleanup 

git-svn-id: svn://kolibrios.org@8897 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
hidnplayr 2021-06-20 20:28:33 +00:00
parent 3868bd567a
commit c32ae93703
1 changed files with 57 additions and 45 deletions
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102
drivers/ethernet/pcnet32.asm
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@ -1,6 +1,6 @@
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
;; Copyright (C) KolibriOS team 2004-2021. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;; AMD PCnet driver for KolibriOS ;;
@ -21,13 +21,17 @@ entry START
COMPATIBLE_API = 0x0100
API_VERSION = (COMPATIBLE_API shl 16) + CURRENT_API
MAX_DEVICES = 16
; configureable area
__DEBUG__ = 1
__DEBUG_LEVEL__ = 2 ; 1 = verbose, 2 = errors only
MAX_DEVICES = 16 ; Maximum number of devices this driver may handle
TX_RING_SIZE = 4
RX_RING_SIZE = 4
__DEBUG__ = 1 ; 1 = on, 0 = off
__DEBUG_LEVEL__ = 2 ; 1 = verbose, 2 = errors only
TX_RING_SIZE = 32 ; Number of packets in send ring buffer
RX_RING_SIZE = 32 ; Number of packets in receive ring buffer
; end configureable area
section '.flat' readable writable executable
@ -37,6 +41,15 @@ include '../proc32.inc'
include '../fdo.inc'
include '../netdrv.inc'
if (bsr TX_RING_SIZE)>(bsf TX_RING_SIZE)
display 'TX_RING_SIZE must be a power of two'
err
end if
if (bsr RX_RING_SIZE)>(bsf RX_RING_SIZE)
display 'RX_RING_SIZE must be a power of two'
err
end if
PORT_AUI = 0x00
PORT_10BT = 0x01
@ -49,14 +62,8 @@ include '../netdrv.inc'
DMA_MASK = 0xffffffff
LOG_TX_BUFFERS = 2 ; FIXME
LOG_RX_BUFFERS = 2
TX_RING_MOD_MASK = (TX_RING_SIZE-1)
TX_RING_LEN_BITS = (LOG_TX_BUFFERS shl 12)
RX_RING_MOD_MASK = (RX_RING_SIZE-1)
RX_RING_LEN_BITS = (LOG_RX_BUFFERS shl 4)
TX_RING_LEN_BITS = ((bsf TX_RING_SIZE) shl 12)
RX_RING_LEN_BITS = ((bsf RX_RING_SIZE) shl 4)
PKT_BUF_SZ = 1544
@ -281,11 +288,9 @@ include '../netdrv.inc'
MAX_PHYS = 32
struct device ETH_DEVICE
rb 0x100-($ and 0xff) ; align 256
; Pcnet configuration structure
struct pcnet_init_block
mode dw ?
tlen_rlen dw ?
phys_addr dp ?
@ -293,19 +298,24 @@ struct device ETH_DEVICE
filter dq ?
rx_ring_phys dd ?
tx_ring_phys dd ?
; end of pcnet config struct
ends
struct device ETH_DEVICE
rb 0x100-($ and 0xff) ; align 256
init_block pcnet_init_block
rb 0x100-($ and 0xff) ; align 256
rx_ring rb RX_RING_SIZE * sizeof.descriptor
rb 0x100-($ and 0xff) ; align 256
tx_ring rb TX_RING_SIZE * sizeof.descriptor
cur_rx db ?
cur_tx db ?
last_tx db ?
cur_rx dd ?
cur_tx dd ?
last_tx dd ?
options dd ?
full_duplex db ?
chip_version dw ?
@ -322,6 +332,8 @@ struct device ETH_DEVICE
phy dw ?
rb 0x100-($ and 0xff) ; align 256
read_csr dd ?
write_csr dd ?
read_bcr dd ?
@ -693,11 +705,11 @@ probe:
invoke PciWrite32, [ebx + device.pci_bus], [ebx + device.pci_dev], PCI_header00.command, eax
mov [ebx + device.options], PORT_ASEL
mov [ebx + device.mode], MODE_RXD + MODE_TXD ; disable receive and transmit
mov [ebx + device.tlen_rlen], (TX_RING_LEN_BITS or RX_RING_LEN_BITS)
mov [ebx + device.init_block.mode], MODE_RXD + MODE_TXD ; disable receive and transmit
mov [ebx + device.init_block.tlen_rlen], (TX_RING_LEN_BITS or RX_RING_LEN_BITS)
mov dword[ebx + device.filter], 0
mov dword[ebx + device.filter+4], 0
mov dword[ebx + device.init_block.filter], 0
mov dword[ebx + device.init_block.filter+4], 0
align 4
reset:
@ -803,9 +815,9 @@ reset:
mov eax, [ebx + device.options]
and eax, PORT_PORTSEL
shl eax, 7
mov [ebx + device.mode], ax
mov dword [ebx + device.filter], -1
mov dword [ebx + device.filter+4], -1
mov [ebx + device.init_block.mode], ax
mov dword [ebx + device.init_block.filter], -1
mov dword [ebx + device.init_block.filter+4], -1
@ -860,7 +872,7 @@ reset:
call read_mac
lea esi, [ebx + device.mac]
lea edi, [ebx + device.phys_addr]
lea edi, [ebx + device.init_block.phys_addr]
movsd
movsw
@ -868,21 +880,21 @@ reset:
test eax, eax
jnz .fail
mov edx, [ebx + device.io_addr] ; init ring destroys edx
mov edx, [ebx + device.io_addr] ; init ring destroys edx
lea eax, [ebx + device.mode]
lea eax, [ebx + device.init_block]
invoke GetPhysAddr
push eax
and eax, 0xffff
mov ecx, 1
mov ecx, CSR_IAB0
call [ebx + device.write_csr]
pop eax
shr eax, 16
mov ecx, 2
mov ecx, CSR_IAB1
call [ebx + device.write_csr]
mov ecx, 4
mov eax, 0x0915
mov ecx, CSR_TFEAT
mov eax, 0x0915 ; Auto TX PAD ?
call [ebx + device.write_csr]
; Set the interrupt mask
@ -934,7 +946,7 @@ init_ring:
lea edi, [ebx + device.rx_ring]
mov eax, edi
invoke GetPhysAddr
mov [ebx + device.rx_ring_phys], eax
mov [ebx + device.init_block.rx_ring_phys], eax
mov ecx, RX_RING_SIZE
.rx_init:
push ecx
@ -947,8 +959,8 @@ init_ring:
add eax, NET_BUFF.data
mov [edi + descriptor.base], eax
mov [edi + descriptor.length], - PKT_BUF_SZ
mov [edi + descriptor.status], RXSTAT_OWN
mov dword[edi + descriptor.msg_length], 0 ; also clears misc field
mov [edi + descriptor.status], RXSTAT_OWN
add edi, sizeof.descriptor
dec ecx
jnz .rx_init
@ -956,7 +968,7 @@ init_ring:
lea edi, [ebx + device.tx_ring]
mov eax, edi
invoke GetPhysAddr
mov [ebx + device.tx_ring_phys], eax
mov [ebx + device.init_block.tx_ring_phys], eax
mov ecx, TX_RING_SIZE
.tx_init:
mov [edi + descriptor.status], 0
@ -964,7 +976,7 @@ init_ring:
dec ecx
jnz .tx_init
mov [ebx + device.tlen_rlen], (TX_RING_LEN_BITS or RX_RING_LEN_BITS)
mov [ebx + device.init_block.tlen_rlen], (TX_RING_LEN_BITS or RX_RING_LEN_BITS)
mov [ebx + device.cur_tx], 0
mov [ebx + device.last_tx], 0
@ -1010,7 +1022,7 @@ proc transmit stdcall bufferptr
; check descriptor
lea edi, [ebx + device.tx_ring]
movzx ecx, [ebx + device.cur_tx]
mov ecx, [ebx + device.cur_tx]
shl ecx, 4
add edi, ecx
@ -1036,7 +1048,7 @@ proc transmit stdcall bufferptr
or eax, CSR_TX
call [ebx + device.write_csr]
; get next descriptor 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, ...
; get next descriptor
inc [ebx + device.cur_tx]
and [ebx + device.cur_tx], TX_RING_SIZE - 1
@ -1110,7 +1122,7 @@ int_handler:
push ebx
.rx_loop:
pop ebx
movzx eax, [ebx + device.cur_rx]
mov eax, [ebx + device.cur_rx]
shl eax, 4
lea edi, [ebx + device.rx_ring]
add edi, eax ; edi now points to current rx ring entry
@ -1177,7 +1189,7 @@ int_handler:
.tx_loop:
lea edi, [ebx + device.tx_ring]
movzx eax, [ebx + device.last_tx]
mov eax, [ebx + device.last_tx]
shl eax, 4
add edi, eax