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Rev | Author | Line No. | Line |
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261 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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431 | serge | 3 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
4 | ;; Distributed under terms of the GNU General Public License ;; |
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5 | ;; ;; |
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261 | hidnplayr | 6 | ;; SIS900.INC ;; |
7 | ;; ;; |
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8 | ;; Ethernet driver for Menuet OS ;; |
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9 | ;; ;; |
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10 | ;; Version 0.4 26 April 2004 ;; |
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11 | ;; ;; |
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12 | ;; This driver is based on the SIS900 driver from ;; |
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13 | ;; the etherboot 5.0.6 project. The copyright statement is ;; |
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14 | ;; ;; |
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15 | ;; GNU GENERAL PUBLIC LICENSE ;; |
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16 | ;; Version 2, June 1991 ;; |
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17 | ;; ;; |
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18 | ;; remaining parts Copyright 2004 Jason Delozier, ;; |
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19 | ;; cordata51@hotmail.com ;; |
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20 | ;; ;; |
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21 | ;; See file COPYING for details ;; |
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22 | ;; ;; |
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23 | ;; Updates: ;; |
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24 | ;; Revision Look up table and SIS635 Mac Address by Jarek Pelczar ;; |
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25 | ;; ;; |
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26 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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593 | mikedld | 27 | |
28 | $Revision: 593 $ |
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29 | |||
30 | |||
261 | hidnplayr | 31 | ;******************************************************************** |
32 | ; Interface |
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33 | ; SIS900_reset |
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34 | ; SIS900_probe |
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35 | ; SIS900_poll |
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36 | ; SIS900_transmit |
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37 | ; |
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38 | ;******************************************************************** |
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39 | ;******************************************************************** |
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40 | ; Comments: |
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41 | ; Known to work with the following SIS900 ethernet cards: |
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42 | ; - Device ID: 0x0900 Vendor ID: 0x1039 Revision: 0x91 |
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43 | ; - Device ID: 0x0900 Vendor ID: 0x1039 Revision: 0x90 |
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44 | ; |
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45 | ; If your card is not listed, try it and let me know if it |
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46 | ; functions properly and it will be aded to the list. If not |
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47 | ; we may be able to add support for it. |
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48 | ; |
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49 | ; How To Use: |
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50 | ; Add the following lines to Ethernet.inc in their appropriate locations |
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51 | ; |
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52 | ; include "Sis900.INC" |
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53 | ; dd 0x09001039, SIS900_probe, SIS900_reset, SIS900_poll, |
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54 | ; SIS900_transmit |
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55 | ; dd 0x70161039, SIS900_probe, SIS900_reset, SIS900_poll, |
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56 | ; SIS900_transmit ;untested |
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57 | ; |
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58 | ; ToDo: |
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59 | ; - Enable MII interface for reading speed |
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60 | ; and duplex settings. |
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61 | ; |
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62 | ; - Update Poll routine to support packet fragmentation. |
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63 | ; |
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64 | ; - Add additional support for other sis900 based cards |
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65 | ; |
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66 | ;******************************************************************** |
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67 | |||
68 | ; comment the next line out if you don't want debug info printed |
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69 | ; on the debug board. This option adds a lot of bytes to the driver |
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70 | ; so it's worth to comment it out. |
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71 | ; SIS900_DEBUG equ 1 |
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72 | |||
73 | |||
74 | ;* buffers and descriptors |
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75 | cur_rx db 0 |
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76 | NUM_RX_DESC equ 4 ;* Number of RX descriptors * |
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77 | NUM_TX_DESC equ 1 ;* Number of TX descriptors * |
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78 | RX_BUFF_SZ equ 1520 ;* Buffer size for each Rx buffer * |
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79 | TX_BUFF_SZ equ 1516 ;* Buffer size for each Tx buffer * |
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80 | |||
81 | uglobal |
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82 | align 4 |
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83 | txd: times (3 * NUM_TX_DESC) dd 0 |
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84 | rxd: times (3 * NUM_RX_DESC) dd 0 |
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85 | endg |
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86 | |||
87 | txb equ eth_data_start |
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88 | rxb equ txb + (NUM_TX_DESC * TX_BUFF_SZ) |
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89 | SIS900_ETH_ALEN equ 6 ;* Size of Ethernet address * |
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90 | SIS900_ETH_HLEN equ 14 ;* Size of ethernet header * |
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91 | SIS900_ETH_ZLEN equ 60 ;* Minimum packet length * |
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92 | SIS900_DSIZE equ 0x00000fff |
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93 | SIS900_CRC_SIZE equ 4 |
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94 | SIS900_RFADDR_shift equ 16 |
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95 | ;SIS900 Symbolic offsets to registers. |
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96 | SIS900_cr equ 0x0 ; Command Register |
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97 | SIS900_cfg equ 0x4 ; Configuration Register |
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98 | SIS900_mear equ 0x8 ; EEPROM Access Register |
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99 | SIS900_ptscr equ 0xc ; PCI Test Control Register |
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100 | SIS900_isr equ 0x10 ; Interrupt Status Register |
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101 | SIS900_imr equ 0x14 ; Interrupt Mask Register |
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102 | SIS900_ier equ 0x18 ; Interrupt Enable Register |
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103 | SIS900_epar equ 0x18 ; Enhanced PHY Access Register |
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104 | SIS900_txdp equ 0x20 ; Transmit Descriptor Pointer Register |
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105 | SIS900_txcfg equ 0x24 ; Transmit Configuration Register |
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106 | SIS900_rxdp equ 0x30 ; Receive Descriptor Pointer Register |
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107 | SIS900_rxcfg equ 0x34 ; Receive Configuration Register |
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108 | SIS900_flctrl equ 0x38 ; Flow Control Register |
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109 | SIS900_rxlen equ 0x3c ; Receive Packet Length Register |
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110 | SIS900_rfcr equ 0x48 ; Receive Filter Control Register |
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111 | SIS900_rfdr equ 0x4C ; Receive Filter Data Register |
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112 | SIS900_pmctrl equ 0xB0 ; Power Management Control Register |
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113 | SIS900_pmer equ 0xB4 ; Power Management Wake-up Event Register |
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114 | ;SIS900 Command Register Bits |
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115 | SIS900_RELOAD equ 0x00000400 |
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116 | SIS900_ACCESSMODE equ 0x00000200 |
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117 | SIS900_RESET equ 0x00000100 |
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118 | SIS900_SWI equ 0x00000080 |
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119 | SIS900_RxRESET equ 0x00000020 |
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120 | SIS900_TxRESET equ 0x00000010 |
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121 | SIS900_RxDIS equ 0x00000008 |
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122 | SIS900_RxENA equ 0x00000004 |
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123 | SIS900_TxDIS equ 0x00000002 |
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124 | SIS900_TxENA equ 0x00000001 |
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125 | ;SIS900 Configuration Register Bits |
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126 | SIS900_DESCRFMT equ 0x00000100 ; 7016 specific |
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127 | SIS900_REQALG equ 0x00000080 |
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128 | SIS900_SB equ 0x00000040 |
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129 | SIS900_POW equ 0x00000020 |
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130 | SIS900_EXD equ 0x00000010 |
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131 | SIS900_PESEL equ 0x00000008 |
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132 | SIS900_LPM equ 0x00000004 |
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133 | SIS900_BEM equ 0x00000001 |
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134 | SIS900_RND_CNT equ 0x00000400 |
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135 | SIS900_FAIR_BACKOFF equ 0x00000200 |
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136 | SIS900_EDB_MASTER_EN equ 0x00002000 |
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137 | ;SIS900 Eeprom Access Reigster Bits |
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138 | SIS900_MDC equ 0x00000040 |
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139 | SIS900_MDDIR equ 0x00000020 |
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140 | SIS900_MDIO equ 0x00000010 ; 7016 specific |
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141 | SIS900_EECS equ 0x00000008 |
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142 | SIS900_EECLK equ 0x00000004 |
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143 | SIS900_EEDO equ 0x00000002 |
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144 | SIS900_EEDI equ 0x00000001 |
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145 | ;SIS900 TX Configuration Register Bits |
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146 | SIS900_ATP equ 0x10000000 ;Automatic Transmit Padding |
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147 | SIS900_MLB equ 0x20000000 ;Mac Loopback Enable |
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148 | SIS900_HBI equ 0x40000000 ;HeartBeat Ignore (Req for full-dup) |
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149 | SIS900_CSI equ 0x80000000 ;CarrierSenseIgnore (Req for full-du |
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150 | ;SIS900 RX Configuration Register Bits |
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151 | SIS900_AJAB equ 0x08000000 ; |
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152 | SIS900_ATX equ 0x10000000 ;Accept Transmit Packets |
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153 | SIS900_ARP equ 0x40000000 ;accept runt packets (<64bytes) |
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154 | SIS900_AEP equ 0x80000000 ;accept error packets |
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155 | ;SIS900 Interrupt Reigster Bits |
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156 | SIS900_WKEVT equ 0x10000000 |
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157 | SIS900_TxPAUSEEND equ 0x08000000 |
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158 | SIS900_TxPAUSE equ 0x04000000 |
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159 | SIS900_TxRCMP equ 0x02000000 |
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160 | SIS900_RxRCMP equ 0x01000000 |
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161 | SIS900_DPERR equ 0x00800000 |
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162 | SIS900_SSERR equ 0x00400000 |
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163 | SIS900_RMABT equ 0x00200000 |
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164 | SIS900_RTABT equ 0x00100000 |
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165 | SIS900_RxSOVR equ 0x00010000 |
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166 | SIS900_HIBERR equ 0x00008000 |
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167 | SIS900_SWINT equ 0x00001000 |
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168 | SIS900_MIBINT equ 0x00000800 |
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169 | SIS900_TxURN equ 0x00000400 |
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170 | SIS900_TxIDLE equ 0x00000200 |
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171 | SIS900_TxERR equ 0x00000100 |
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172 | SIS900_TxDESC equ 0x00000080 |
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173 | SIS900_TxOK equ 0x00000040 |
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174 | SIS900_RxORN equ 0x00000020 |
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175 | SIS900_RxIDLE equ 0x00000010 |
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176 | SIS900_RxEARLY equ 0x00000008 |
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177 | SIS900_RxERR equ 0x00000004 |
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178 | SIS900_RxDESC equ 0x00000002 |
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179 | SIS900_RxOK equ 0x00000001 |
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180 | ;SIS900 Interrupt Enable Reigster Bits |
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181 | SIS900_IE equ 0x00000001 |
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182 | ;SIS900 Revision ID |
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183 | SIS900B_900_REV equ 0x03 |
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184 | SIS630A_900_REV equ 0x80 |
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185 | SIS630E_900_REV equ 0x81 |
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186 | SIS630S_900_REV equ 0x82 |
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187 | SIS630EA1_900_REV equ 0x83 |
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188 | SIS630ET_900_REV equ 0x84 |
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189 | SIS635A_900_REV equ 0x90 |
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190 | SIS900_960_REV equ 0x91 |
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191 | ;SIS900 Receive Filter Control Register Bits |
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192 | SIS900_RFEN equ 0x80000000 |
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193 | SIS900_RFAAB equ 0x40000000 |
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194 | SIS900_RFAAM equ 0x20000000 |
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195 | SIS900_RFAAP equ 0x10000000 |
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196 | SIS900_RFPromiscuous equ 0x70000000 |
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197 | ;SIS900 Reveive Filter Data Mask |
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198 | SIS900_RFDAT equ 0x0000FFFF |
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199 | ;SIS900 Eeprom Address |
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200 | SIS900_EEPROMSignature equ 0x00 |
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201 | SIS900_EEPROMVendorID equ 0x02 |
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202 | SIS900_EEPROMDeviceID equ 0x03 |
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203 | SIS900_EEPROMMACAddr equ 0x08 |
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204 | SIS900_EEPROMChecksum equ 0x0b |
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205 | ;The EEPROM commands include the alway-set leading bit. |
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206 | ;SIS900 Eeprom Command |
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207 | SIS900_EEread equ 0x0180 |
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208 | SIS900_EEwrite equ 0x0140 |
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209 | SIS900_EEerase equ 0x01C0 |
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210 | SIS900_EEwriteEnable equ 0x0130 |
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211 | SIS900_EEwriteDisable equ 0x0100 |
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212 | SIS900_EEeraseAll equ 0x0120 |
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213 | SIS900_EEwriteAll equ 0x0110 |
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214 | SIS900_EEaddrMask equ 0x013F |
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215 | SIS900_EEcmdShift equ 16 |
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216 | ;For SiS962 or SiS963, request the eeprom software access |
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217 | SIS900_EEREQ equ 0x00000400 |
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218 | SIS900_EEDONE equ 0x00000200 |
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219 | SIS900_EEGNT equ 0x00000100 |
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220 | ;General Varibles |
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221 | SIS900_pci_revision: db 0 |
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222 | SIS900_Status dd 0x03000000 |
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223 | sis900_specific_table: |
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224 | ; dd SIS630A_900_REV,Get_Mac_SIS630A_900_REV,0 |
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225 | ; dd SIS630E_900_REV,Get_Mac_SIS630E_900_REV,0 |
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226 | dd SIS630S_900_REV,Get_Mac_SIS635_900_REV,0 |
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227 | dd SIS630EA1_900_REV,Get_Mac_SIS635_900_REV,0 |
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228 | dd SIS630ET_900_REV,Get_Mac_SIS635_900_REV,0;SIS630ET_900_REV_SpecialFN |
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229 | dd SIS635A_900_REV,Get_Mac_SIS635_900_REV,0 |
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230 | dd SIS900_960_REV,SIS960_get_mac_addr,0 |
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231 | dd SIS900B_900_REV,SIS900_get_mac_addr,0 |
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232 | dd 0,0,0,0 ; end of list |
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233 | sis900_get_mac_func: dd 0 |
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234 | sis900_special_func: dd 0 |
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235 | sis900_table_entries: db 8 |
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236 | |||
237 | ;*************************************************************************** |
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238 | ; Function |
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239 | ; SIS900_probe |
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240 | ; Description |
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241 | ; Searches for an ethernet card, enables it and clears the rx buffer |
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242 | ; If a card was found, it enables the ethernet -> TCPIP link |
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243 | ;not done - still need to probe mii transcievers |
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244 | ;*************************************************************************** |
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245 | if defined SIS900_DEBUG |
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246 | SIS900_Debug_Str_Unsupported db 'Sorry your card is unsupported ',13,10,0 |
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247 | end if |
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248 | SIS900_probe: |
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249 | ;******Wake Up Chip******* |
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250 | mov al, 4 |
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251 | mov bh, [pci_dev] |
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252 | mov ecx, 0 |
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253 | mov ah, [pci_bus] |
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254 | mov bl, 0x40 |
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255 | call pci_write_reg |
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256 | ;*******Set some PCI Settings********* |
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257 | call SIS900_adjust_pci_device |
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258 | ;*****Get Card Revision****** |
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259 | mov al, 1 ;one byte to read |
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260 | mov bh, [pci_dev] |
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261 | mov ah, [pci_bus] |
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262 | mov bl, 0x08 ;Revision Register |
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263 | call pci_read_reg |
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264 | mov [SIS900_pci_revision], al ;save the revision for later use |
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265 | ;****** Look up through the sis900_specific_table |
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266 | mov esi,sis900_specific_table |
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267 | .probe_loop: |
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268 | cmp dword [esi],0 ; Check if we reached end of the list |
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269 | je .probe_loop_failed |
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270 | cmp al,[esi] ; Check if revision is OK |
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271 | je .probe_loop_ok |
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272 | add esi,12 ; Advance to next entry |
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273 | jmp .probe_loop |
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274 | .probe_loop_failed: |
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275 | jmp SIS900_Probe_Unsupported |
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276 | ;*********Find Get Mac Function********* |
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277 | .probe_loop_ok: |
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278 | mov eax,[esi+4] ; Get pointer to "get MAC" function |
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279 | mov [sis900_get_mac_func],eax |
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280 | mov eax,[esi+8] ; Get pointer to special initialization fn |
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281 | mov [sis900_special_func],eax |
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282 | ;******** Get MAC ******** |
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283 | call dword [sis900_get_mac_func] |
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284 | ;******** Call special initialization fn if requested ******** |
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285 | cmp dword [sis900_special_func],0 |
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286 | je .no_special_init |
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287 | call dword [sis900_special_func] |
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288 | .no_special_init: |
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289 | ;******** Set table entries ******** |
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290 | mov al,[SIS900_pci_revision] |
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291 | cmp al,SIS635A_900_REV |
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292 | jae .ent16 |
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293 | cmp al,SIS900B_900_REV |
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294 | je .ent16 |
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295 | jmp .ent8 |
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296 | .ent16: |
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297 | mov byte [sis900_table_entries],16 |
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298 | .ent8: |
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299 | ;*******Probe for mii transceiver******* |
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300 | ;TODO!!********************* |
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301 | ;*******Initialize Device******* |
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302 | call sis900_init |
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303 | ret |
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304 | |||
305 | SIS900_Probe_Unsupported: |
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306 | if defined SIS900_DEBUG |
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307 | mov esi, SIS900_Debug_Str_Unsupported |
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308 | call sys_msg_board_str |
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309 | end if |
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310 | ret |
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311 | ;*************************************************************************** |
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312 | ; Function: sis900_init |
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313 | ; |
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314 | ; Description: resets the ethernet controller chip and various |
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315 | ; data structures required for sending and receiving packets. |
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316 | ; |
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317 | ; Arguments: |
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318 | ; |
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319 | ; returns: none |
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320 | ;not done |
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321 | ;*************************************************************************** |
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322 | sis900_init: |
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323 | call SIS900_reset ;Done |
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324 | call SIS900_init_rxfilter ;Done |
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325 | call SIS900_init_txd ;Done |
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326 | call SIS900_init_rxd ;Done |
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327 | call SIS900_set_rx_mode ;done |
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328 | call SIS900_set_tx_mode |
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329 | ;call SIS900_check_mode |
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330 | ret |
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331 | |||
332 | ;*************************************************************************** |
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333 | ; Function |
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334 | ; SIS900_reset |
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335 | ; Description |
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336 | ; disables interrupts and soft resets the controller chip |
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337 | ; |
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338 | ;done+ |
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339 | ;*************************************************************************** |
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340 | if defined SIS900_DEBUG |
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341 | SIS900_Debug_Reset_Failed db 'Reset Failed ',0 |
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342 | end if |
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343 | SIS900_reset: |
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344 | ;******Disable Interrupts and reset Receive Filter******* |
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345 | mov ebp, [io_addr] ; base address |
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346 | xor eax, eax ; 0 to initialize |
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347 | lea edx,[ebp+SIS900_ier] |
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348 | out dx, eax ; Write 0 to location |
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349 | lea edx,[ebp+SIS900_imr] |
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350 | out dx, eax ; Write 0 to location |
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351 | lea edx,[ebp+SIS900_rfcr] |
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352 | out dx, eax ; Write 0 to location |
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353 | ;*******Reset Card*********************************************** |
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354 | lea edx,[ebp+SIS900_cr] |
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355 | in eax, dx ; Get current Command Register |
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356 | or eax, SIS900_RESET ; set flags |
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357 | or eax, SIS900_RxRESET ; |
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358 | or eax, SIS900_TxRESET ; |
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359 | out dx, eax ; Write new Command Register |
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360 | ;*******Wait Loop************************************************ |
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361 | lea edx,[ebp+SIS900_isr] |
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362 | mov ecx, [SIS900_Status] ; Status we would like to see from card |
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363 | mov ebx, 2001 ; only loop 1000 times |
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364 | SIS900_Wait: |
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365 | dec ebx ; 1 less loop |
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366 | jz SIS900_DoneWait_e ; 1000 times yet? |
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367 | in eax, dx ; move interrup status to eax |
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368 | and eax, ecx |
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369 | xor ecx, eax |
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370 | jz SIS900_DoneWait |
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371 | jmp SIS900_Wait |
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372 | SIS900_DoneWait_e: |
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373 | if defined SIS900_DEBUG |
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374 | mov esi, SIS900_Debug_Reset_Failed |
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375 | call sys_msg_board_str |
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376 | end if |
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377 | SIS900_DoneWait: |
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378 | ;*******Set Configuration Register depending on Card Revision******** |
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379 | lea edx,[ebp+SIS900_cfg] |
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380 | mov eax, SIS900_PESEL ; Configuration Register Bit |
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381 | mov bl, [SIS900_pci_revision] ; card revision |
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382 | mov cl, SIS635A_900_REV ; Check card revision |
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383 | cmp bl, cl |
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384 | je SIS900_RevMatch |
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385 | mov cl, SIS900B_900_REV ; Check card revision |
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386 | cmp bl, cl |
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387 | je SIS900_RevMatch |
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388 | out dx, eax ; no revision match |
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389 | jmp SIS900_Reset_Complete |
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390 | SIS900_RevMatch: ; Revision match |
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391 | or eax, SIS900_RND_CNT ; Configuration Register Bit |
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392 | out dx, eax |
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393 | SIS900_Reset_Complete: |
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394 | mov eax, [pci_data] |
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395 | mov [eth_status], eax |
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396 | ret |
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397 | |||
398 | ;*************************************************************************** |
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399 | ; Function: sis_init_rxfilter |
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400 | ; |
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401 | ; Description: sets receive filter address to our MAC address |
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402 | ; |
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403 | ; Arguments: |
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404 | ; |
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405 | ; returns: |
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406 | ;done+ |
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407 | ;*************************************************************************** |
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408 | SIS900_init_rxfilter: |
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409 | ;****Get Receive Filter Control Register ******** |
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410 | mov ebp, [io_addr] ; base address |
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411 | lea edx,[ebp+SIS900_rfcr] |
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412 | in eax, dx ; get register |
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413 | push eax |
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414 | ;****disable packet filtering before setting filter******* |
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415 | mov eax, SIS900_RFEN ;move receive filter enable flag |
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416 | not eax ;1s complement |
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417 | pop ebx ;and with our saved register |
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418 | and eax, ebx ;disable receiver |
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419 | push ebx ;save filter for another use |
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420 | out dx, eax ;set receive disabled |
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421 | ;********load MAC addr to filter data register********* |
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422 | xor ecx, ecx |
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423 | SIS900_RXINT_Mac_Write: |
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424 | ;high word of eax tells card which mac byte to write |
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425 | mov eax, ecx |
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426 | lea edx,[ebp+SIS900_rfcr] |
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427 | shl eax, 16 ; |
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428 | out dx, eax ; |
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429 | lea edx,[ebp+SIS900_rfdr] |
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430 | mov ax, word [node_addr+ecx*2] ; Get Mac ID word |
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431 | out dx, ax ; Send Mac ID |
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432 | inc cl ; send next word |
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433 | cmp cl, 3 ; more to send? |
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434 | jne SIS900_RXINT_Mac_Write |
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435 | ;********enable packet filitering ***** |
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436 | pop eax ;old register value |
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437 | lea edx,[ebp+SIS900_rfcr] |
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438 | or eax, SIS900_RFEN ;enable filtering |
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439 | out dx, eax ;set register |
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440 | ret |
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441 | |||
442 | ;*************************************************************************** |
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443 | ;* |
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444 | ;* Function: sis_init_txd |
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445 | ;* |
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446 | ;* Description: initializes the Tx descriptor |
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447 | ;* |
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448 | ;* Arguments: |
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449 | ;* |
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450 | ;* returns: |
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451 | ;*done |
||
452 | ;*************************************************************************** |
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453 | SIS900_init_txd: |
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454 | ;********** initialize TX descriptor ************** |
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455 | mov [txd], dword 0 ;put link to next descriptor in link field |
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456 | mov [txd+4],dword 0 ;clear status field |
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457 | mov [txd+8], dword txb ;save address to buffer ptr field |
||
458 | ;*************** load Transmit Descriptor Register *************** |
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459 | mov dx, [io_addr] ; base address |
||
460 | add dx, SIS900_txdp ; TX Descriptor Pointer |
||
461 | mov eax, txd ; First Descriptor |
||
462 | out dx, eax ; move the pointer |
||
463 | ret |
||
464 | |||
465 | ;*************************************************************************** |
||
466 | ;* Function: sis_init_rxd |
||
467 | ;* |
||
468 | ;* Description: initializes the Rx descriptor ring |
||
469 | ;* |
||
470 | ;* Arguments: |
||
471 | ;* |
||
472 | ;* Returns: |
||
473 | ;*done |
||
474 | ;*************************************************************************** |
||
475 | SIS900_init_rxd: |
||
476 | xor ecx,ecx |
||
477 | mov [cur_rx], cl ;Set cuurent rx discriptor to 0 |
||
478 | ;******** init RX descriptors ******** |
||
479 | SIS900_init_rxd_Loop: |
||
480 | mov eax, ecx ;current descriptor |
||
481 | imul eax, 12 ; |
||
482 | mov ebx, ecx ;determine next link descriptor |
||
483 | inc ebx ; |
||
484 | cmp ebx, NUM_RX_DESC ; |
||
485 | jne SIS900_init_rxd_Loop_0 ; |
||
486 | xor ebx, ebx ; |
||
487 | SIS900_init_rxd_Loop_0: ; |
||
488 | imul ebx, 12 ; |
||
489 | add ebx, rxd ; |
||
490 | mov [rxd+eax], ebx ;save link to next descriptor |
||
491 | mov [rxd+eax+4],dword RX_BUFF_SZ ;status bits init to buf size |
||
492 | mov ebx, ecx ;find where the buf is located |
||
493 | imul ebx,RX_BUFF_SZ ; |
||
494 | add ebx, rxb ; |
||
495 | mov [rxd+eax+8], ebx ;save buffer pointer |
||
496 | inc ecx ;next descriptor |
||
497 | cmp ecx, NUM_RX_DESC ; |
||
498 | jne SIS900_init_rxd_Loop ; |
||
499 | ;********* load Receive Descriptor Register with address of first |
||
500 | ; descriptor********* |
||
501 | mov dx, [io_addr] |
||
502 | add dx, SIS900_rxdp |
||
503 | mov eax, rxd |
||
504 | out dx, eax |
||
505 | ret |
||
506 | |||
507 | ;*************************************************************************** |
||
508 | ;* Function: sis900_set_tx_mode |
||
509 | ;* |
||
510 | ;* Description: |
||
511 | ;* sets the transmit mode to allow for full duplex |
||
512 | ;* |
||
513 | ;* |
||
514 | ;* Arguments: |
||
515 | ;* |
||
516 | ;* Returns: |
||
517 | ;* |
||
518 | ;* Comments: |
||
519 | ;* If you are having problems transmitting packet try changing the |
||
520 | ;* Max DMA Burst, Possible settings are as follows: |
||
521 | ;* 0x00000000 = 512 bytes |
||
522 | ;* 0x00100000 = 4 bytes |
||
523 | ;* 0x00200000 = 8 bytes |
||
524 | ;* 0x00300000 = 16 bytes |
||
525 | ;* 0x00400000 = 32 bytes |
||
526 | ;* 0x00500000 = 64 bytes |
||
527 | ;* 0x00600000 = 128 bytes |
||
528 | ;* 0x00700000 = 256 bytes |
||
529 | ;*************************************************************************** |
||
530 | SIS900_set_tx_mode: |
||
531 | mov ebp,[io_addr] |
||
532 | lea edx,[ebp+SIS900_cr] |
||
533 | in eax, dx ; Get current Command Register |
||
534 | or eax, SIS900_TxENA ;Enable Receive |
||
535 | out dx, eax |
||
536 | lea edx,[ebp+SIS900_txcfg]; Transmit config Register offset |
||
537 | mov eax, SIS900_ATP ;allow automatic padding |
||
538 | or eax, SIS900_HBI ;allow heartbeat ignore |
||
539 | or eax, SIS900_CSI ;allow carrier sense ignore |
||
540 | or eax, 0x00600000 ;Max DMA Burst |
||
541 | or eax, 0x00000100 ;TX Fill Threshold |
||
542 | or eax, 0x00000020 ;TX Drain Threshold |
||
543 | out dx, eax |
||
544 | ret |
||
545 | |||
546 | ;*************************************************************************** |
||
547 | ;* Function: sis900_set_rx_mode |
||
548 | ;* |
||
549 | ;* Description: |
||
550 | ;* sets the receive mode to accept all broadcast packets and packets |
||
551 | ;* with our MAC address, and reject all multicast packets. Also allows |
||
552 | ;* full-duplex |
||
553 | ;* |
||
554 | ;* Arguments: |
||
555 | ;* |
||
556 | ;* Returns: |
||
557 | ;* |
||
558 | ;* Comments: |
||
559 | ;* If you are having problems receiving packet try changing the |
||
560 | ;* Max DMA Burst, Possible settings are as follows: |
||
561 | ;* 0x00000000 = 512 bytes |
||
562 | ;* 0x00100000 = 4 bytes |
||
563 | ;* 0x00200000 = 8 bytes |
||
564 | ;* 0x00300000 = 16 bytes |
||
565 | ;* 0x00400000 = 32 bytes |
||
566 | ;* 0x00500000 = 64 bytes |
||
567 | ;* 0x00600000 = 128 bytes |
||
568 | ;* 0x00700000 = 256 bytes |
||
569 | ;*************************************************************************** |
||
570 | SIS900_mc_filter: times 16 dw 0 |
||
571 | SIS900_set_rx_mode: |
||
572 | mov ebp,[io_addr] |
||
573 | ;**************update Multicast Hash Table in Receive Filter |
||
574 | mov ebx, 0xffff |
||
575 | xor cl, cl |
||
576 | SIS900_set_rx_mode_Loop: |
||
577 | mov eax, ecx |
||
578 | shl eax, 1 |
||
579 | mov [SIS900_mc_filter+eax], ebx |
||
580 | lea edx,[ebp+SIS900_rfcr] ; Receive Filter Control Reg offset |
||
581 | mov eax, 4 ;determine table entry |
||
582 | add al, cl |
||
583 | shl eax, 16 |
||
584 | out dx, eax ;tell card which entry to modify |
||
585 | lea edx,[ebp+SIS900_rfdr] ; Receive Filter Control Reg offset |
||
586 | mov eax, ebx ;entry value |
||
587 | out dx, ax ;write value to table in card |
||
588 | inc cl ;next entry |
||
589 | cmp cl,[sis900_table_entries] ; |
||
590 | jl SIS900_set_rx_mode_Loop |
||
591 | ;*******Set Receive Filter Control Register************* |
||
592 | lea edx,[ebp+SIS900_rfcr] ; Receive Filter Control Register offset |
||
593 | mov eax, SIS900_RFAAB ;accecpt all broadcast packets |
||
594 | or eax, SIS900_RFAAM ;accept all multicast packets |
||
595 | or eax, SIS900_RFAAP ;Accept all packets |
||
596 | or eax, SIS900_RFEN ;enable receiver filter |
||
597 | out dx, eax |
||
598 | ;******Enable Receiver************ |
||
599 | lea edx,[ebp+SIS900_cr] ; Command Register offset |
||
600 | in eax, dx ; Get current Command Register |
||
601 | or eax, SIS900_RxENA ;Enable Receive |
||
602 | out dx, eax |
||
603 | ;*********Set |
||
604 | lea edx,[ebp+SIS900_rxcfg] ; Receive Config Register offset |
||
605 | mov eax, SIS900_ATX ;Accept Transmit Packets |
||
606 | ; (Req for full-duplex and PMD Loopback) |
||
607 | or eax, 0x00600000 ;Max DMA Burst |
||
608 | or eax, 0x00000002 ;RX Drain Threshold, 8X8 bytes or 64bytes |
||
609 | out dx, eax ; |
||
610 | ret |
||
611 | |||
612 | ;*************************************************************************** |
||
613 | ; * SIS960_get_mac_addr: - Get MAC address for SiS962 or SiS963 model |
||
614 | ; * @pci_dev: the sis900 pci device |
||
615 | ; * @net_dev: the net device to get address for |
||
616 | ; * |
||
617 | ; * SiS962 or SiS963 model, use EEPROM to store MAC address. And EEPROM |
||
618 | ; * is shared by |
||
619 | ; * LAN and 1394. When access EEPROM, send EEREQ signal to hardware first |
||
620 | ; * and wait for EEGNT. If EEGNT is ON, EEPROM is permitted to be access |
||
621 | ; * by LAN, otherwise is not. After MAC address is read from EEPROM, send |
||
622 | ; * EEDONE signal to refuse EEPROM access by LAN. |
||
623 | ; * The EEPROM map of SiS962 or SiS963 is different to SiS900. |
||
624 | ; * The signature field in SiS962 or SiS963 spec is meaningless. |
||
625 | ; * MAC address is read into @net_dev->dev_addr. |
||
626 | ; *done |
||
627 | ;* |
||
628 | ;* Return 0 is EAX = failure |
||
629 | ;*Done+ |
||
630 | ;*************************************************************************** |
||
631 | if defined SIS900_DEBUG |
||
632 | SIS900_Debug_Str_GetMac_Start db 'Attempting to get SIS900 Mac ID: ',13,10,0 |
||
633 | SIS900_Debug_Str_GetMac_Failed db 'Access to EEprom Failed',13,10,0 |
||
634 | SIS900_Debug_Str_GetMac_Address db 'Your Mac ID is: ',0 |
||
635 | SIS900_Debug_Str_GetMac_Address2 db 'Your SIS96x Mac ID is: ',0 |
||
636 | end if |
||
637 | SIS960_get_mac_addr: |
||
638 | mov ebp,[io_addr] |
||
639 | ;**********Send Request for eeprom access********************* |
||
640 | lea edx,[ebp+SIS900_mear] ; Eeprom access register |
||
641 | mov eax, SIS900_EEREQ ; Request access to eeprom |
||
642 | out dx, eax ; Send request |
||
643 | xor ebx,ebx ; |
||
644 | ;******Loop 4000 times and if access not granted error out***** |
||
645 | SIS96X_Get_Mac_Wait: |
||
646 | in eax, dx ;get eeprom status |
||
647 | and eax, SIS900_EEGNT ;see if eeprom access granted flag is set |
||
648 | jnz SIS900_Got_EEP_Access ;if it is, go access the eeprom |
||
649 | inc ebx ;else keep waiting |
||
650 | cmp ebx, 4000 ;have we tried 4000 times yet? |
||
651 | jl SIS96X_Get_Mac_Wait ;if not ask again |
||
652 | xor eax, eax ;return zero in eax indicating failure |
||
653 | ;*******Debug ********************** |
||
654 | if defined SIS900_DEBUG |
||
655 | mov esi,SIS900_Debug_Str_GetMac_Failed |
||
656 | call sys_msg_board_str |
||
657 | end if |
||
658 | jmp SIS960_get_mac_addr_done |
||
659 | ;**********EEprom access granted, read MAC from card************* |
||
660 | SIS900_Got_EEP_Access: |
||
661 | ; zero based so 3-16 bit reads will take place |
||
662 | mov ecx, 2 |
||
663 | SIS96x_mac_read_loop: |
||
664 | mov eax, SIS900_EEPROMMACAddr ;Base Mac Address |
||
665 | add eax, ecx ;Current Mac Byte Offset |
||
666 | push ecx |
||
667 | call sis900_read_eeprom ;try to read 16 bits |
||
668 | pop ecx |
||
669 | mov [node_addr+ecx*2], ax ;save 16 bits to the MAC ID varible |
||
670 | dec ecx ;one less word to read |
||
671 | jns SIS96x_mac_read_loop ;if more read more |
||
672 | mov eax, 1 ;return non-zero indicating success |
||
673 | ;*******Debug Print MAC ID to debug window********************** |
||
674 | if defined SIS900_DEBUG |
||
675 | mov esi,SIS900_Debug_Str_GetMac_Address2 |
||
676 | call sys_msg_board_str |
||
677 | mov edx, node_addr |
||
678 | call Create_Mac_String |
||
679 | end if |
||
680 | ;**********Tell EEPROM We are Done Accessing It********************* |
||
681 | SIS960_get_mac_addr_done: |
||
682 | lea edx,[ebp+SIS900_mear] ; Eeprom access register |
||
683 | mov eax, SIS900_EEDONE ;tell eeprom we are done |
||
684 | out dx,eax |
||
685 | ret |
||
686 | ;*************************************************************************** |
||
687 | ;* sis900_get_mac_addr: - Get MAC address for stand alone SiS900 model |
||
688 | ;* @pci_dev: the sis900 pci device |
||
689 | ;* @net_dev: the net device to get address for |
||
690 | ;* |
||
691 | ;* Older SiS900 and friends, use EEPROM to store MAC address. |
||
692 | ;* MAC address is read from read_eeprom() into @net_dev->dev_addr. |
||
693 | ;* done/untested |
||
694 | ;*************************************************************************** |
||
695 | SIS900_get_mac_addr: |
||
696 | ;*******Debug ********************** |
||
697 | if defined SIS900_DEBUG |
||
698 | mov esi,SIS900_Debug_Str_GetMac_Start |
||
699 | call sys_msg_board_str |
||
700 | end if |
||
701 | ;******** check to see if we have sane EEPROM ******* |
||
702 | mov eax, SIS900_EEPROMSignature ;Base Eeprom Signature |
||
703 | call sis900_read_eeprom ;try to read 16 bits |
||
704 | cmp ax, 0xffff |
||
705 | je SIS900_Bad_Eeprom |
||
706 | cmp ax, 0 |
||
707 | je SIS900_Bad_Eeprom |
||
708 | ;**************Read MacID************** |
||
709 | ; zero based so 3-16 bit reads will take place |
||
710 | mov ecx, 2 |
||
711 | SIS900_mac_read_loop: |
||
712 | mov eax, SIS900_EEPROMMACAddr ;Base Mac Address |
||
713 | add eax, ecx ;Current Mac Byte Offset |
||
714 | push ecx |
||
715 | call sis900_read_eeprom ;try to read 16 bits |
||
716 | pop ecx |
||
717 | mov [node_addr+ecx*2], ax ;save 16 bits to the MAC ID storage |
||
718 | dec ecx ;one less word to read |
||
719 | jns SIS900_mac_read_loop ;if more read more |
||
720 | mov eax, 1 ;return non-zero indicating success |
||
721 | ;*******Debug Print MAC ID to debug window********************** |
||
722 | if defined SIS900_DEBUG |
||
723 | mov esi,SIS900_Debug_Str_GetMac_Address |
||
724 | call sys_msg_board_str |
||
725 | mov edx, node_addr |
||
726 | call Create_Mac_String |
||
727 | end if |
||
728 | ret |
||
729 | |||
730 | SIS900_Bad_Eeprom: |
||
731 | xor eax, eax |
||
732 | ;*******Debug ********************** |
||
733 | if defined SIS900_DEBUG |
||
734 | mov esi,SIS900_Debug_Str_GetMac_Failed |
||
735 | call sys_msg_board_str |
||
736 | end if |
||
737 | ret |
||
738 | ;*************************************************************************** |
||
739 | ;* Get_Mac_SIS635_900_REV: - Get MAC address for model 635 |
||
740 | ;* |
||
741 | ;* |
||
742 | ;*************************************************************************** |
||
743 | Get_Mac_SIS635_900_REV: |
||
744 | if defined SIS900_DEBUG |
||
745 | mov esi,SIS900_Debug_Str_GetMac_Start |
||
746 | call sys_msg_board_str |
||
747 | end if |
||
748 | mov ebp,[io_addr] |
||
749 | lea edx,[ebp+SIS900_rfcr] |
||
750 | in eax,dx |
||
751 | mov edi,eax ; EDI=rfcrSave |
||
752 | lea edx,[ebp+SIS900_cr] |
||
753 | or eax,SIS900_RELOAD |
||
754 | out dx,eax |
||
755 | xor eax,eax |
||
756 | out dx,eax |
||
757 | ; Disable packet filtering before setting filter |
||
758 | lea edx,[ebp+SIS900_rfcr] |
||
759 | mov eax,edi |
||
760 | and edi,not SIS900_RFEN |
||
761 | out dx,eax |
||
762 | ; Load MAC to filter data register |
||
763 | xor ecx,ecx |
||
764 | mov esi,node_addr |
||
765 | .get_mac_loop: |
||
766 | lea edx,[ebp+SIS900_rfcr] |
||
767 | mov eax,ecx |
||
768 | shl eax,SIS900_RFADDR_shift |
||
769 | out dx,eax |
||
770 | lea edx,[ebp+SIS900_rfdr] |
||
771 | in eax,dx |
||
772 | mov [esi],ax |
||
773 | add esi,2 |
||
774 | inc ecx |
||
775 | cmp ecx,3 |
||
776 | jne .get_mac_loop |
||
777 | ; Enable packet filtering |
||
778 | ;lea edx,[ebp+SIS900_rfcr] |
||
779 | ;mov eax,edi |
||
780 | ;or eax,SIS900_RFEN |
||
781 | ;out dx, eax |
||
782 | ;*******Debug Print MAC ID to debug window********************** |
||
783 | if defined SIS900_DEBUG |
||
784 | mov esi,SIS900_Debug_Str_GetMac_Address |
||
785 | call sys_msg_board_str |
||
786 | mov edx, node_addr |
||
787 | call Create_Mac_String |
||
788 | end if |
||
789 | ret |
||
790 | ;*************************************************************************** |
||
791 | ;* Function: sis900_read_eeprom |
||
792 | ;* |
||
793 | ;* Description: reads and returns a given location from EEPROM |
||
794 | ;* |
||
795 | ;* Arguments: eax - location: requested EEPROM location |
||
796 | ;* |
||
797 | ;* Returns: eax : contents of requested EEPROM location |
||
798 | ;* |
||
799 | ; Read Serial EEPROM through EEPROM Access Register, Note that location is |
||
800 | ; in word (16 bits) unit */ |
||
801 | ;done+ |
||
802 | ;*************************************************************************** |
||
803 | sis900_read_eeprom: |
||
804 | push esi |
||
805 | push edx |
||
806 | push ecx |
||
807 | push ebx |
||
808 | mov ebp,[io_addr] |
||
809 | mov ebx, eax ;location of Mac byte to read |
||
810 | or ebx, SIS900_EEread ; |
||
811 | lea edx,[ebp+SIS900_mear] ; Eeprom access register |
||
812 | xor eax, eax ; start send |
||
813 | out dx,eax |
||
814 | call SIS900_Eeprom_Delay_1 |
||
815 | mov eax, SIS900_EECLK |
||
816 | out dx, eax |
||
817 | call SIS900_Eeprom_Delay_1 |
||
818 | ;************ Shift the read command (9) bits out. ********* |
||
819 | mov cl, 8 ; |
||
820 | sis900_read_eeprom_Send: |
||
821 | mov eax, 1 |
||
822 | shl eax, cl |
||
823 | and eax, ebx |
||
824 | jz SIS900_Read_Eeprom_8 |
||
825 | mov eax, 9 |
||
826 | jmp SIS900_Read_Eeprom_9 |
||
827 | SIS900_Read_Eeprom_8: |
||
828 | mov eax, 8 |
||
829 | SIS900_Read_Eeprom_9: |
||
830 | out dx, eax |
||
831 | call SIS900_Eeprom_Delay_1 |
||
832 | or eax, SIS900_EECLK |
||
833 | out dx, eax |
||
834 | call SIS900_Eeprom_Delay_1 |
||
835 | cmp cl, 0 |
||
836 | je sis900_read_eeprom_Send_Done |
||
837 | dec cl |
||
838 | jmp sis900_read_eeprom_Send |
||
839 | ;********************* |
||
840 | sis900_read_eeprom_Send_Done: |
||
841 | mov eax, SIS900_EECS ; |
||
842 | out dx, eax |
||
843 | call SIS900_Eeprom_Delay_1 |
||
844 | ;********** Read 16-bits of data in *************** |
||
845 | mov cx, 16 ;16 bits to read |
||
846 | sis900_read_eeprom_Send2: |
||
847 | mov eax, SIS900_EECS |
||
848 | out dx, eax |
||
849 | call SIS900_Eeprom_Delay_1 |
||
850 | or eax, SIS900_EECLK |
||
851 | out dx, eax |
||
852 | call SIS900_Eeprom_Delay_1 |
||
853 | in eax, dx |
||
854 | shl ebx, 1 |
||
855 | and eax, SIS900_EEDO |
||
856 | jz SIS900_Read_Eeprom_0 |
||
857 | or ebx, 1 |
||
858 | SIS900_Read_Eeprom_0: |
||
859 | dec cx |
||
860 | jnz sis900_read_eeprom_Send2 |
||
861 | ;************** Terminate the EEPROM access. ************** |
||
862 | xor eax, eax |
||
863 | out dx, eax |
||
864 | call SIS900_Eeprom_Delay_1 |
||
865 | mov eax, SIS900_EECLK |
||
866 | out dx, eax |
||
867 | mov eax, ebx |
||
868 | and eax, 0x0000ffff ;return only 16 bits |
||
869 | pop ebx |
||
870 | pop ecx |
||
871 | pop edx |
||
872 | pop esi |
||
873 | ret |
||
874 | ;*************************************************************************** |
||
875 | ; Function |
||
876 | ; SIS900_Eeprom_Delay_1 |
||
877 | ; Description |
||
878 | ; |
||
879 | ; |
||
880 | ; |
||
881 | ; |
||
882 | ;*************************************************************************** |
||
883 | SIS900_Eeprom_Delay_1: |
||
884 | push eax |
||
885 | in eax, dx |
||
886 | pop eax |
||
887 | ret |
||
888 | |||
889 | ;*************************************************************************** |
||
890 | ; Function |
||
891 | ; SIS900_poll |
||
892 | ; Description |
||
893 | ; polls card to see if there is a packet waiting |
||
894 | ; |
||
895 | ; Currently only supports one descriptor per packet, if packet is fragmented |
||
896 | ; between multiple descriptors you will lose part of the packet |
||
897 | ;*************************************************************************** |
||
898 | if defined SIS900_DEBUG |
||
899 | SIS900_Debug_Pull_Packet_good db 'Good Packet Waiting: ',13,10,0 |
||
900 | SIS900_Debug_Pull_Bad_Packet_Status db 'Bad Packet Waiting: Status',13,10,0 |
||
901 | SIS900_Debug_Pull_Bad_Packet_Size db 'Bad Packet Waiting: Size',13,10,0 |
||
902 | end if |
||
903 | SIS900_poll: |
||
904 | ;**************Get Status ************** |
||
905 | xor eax, eax ;get RX_Status |
||
906 | mov [eth_rx_data_len], ax |
||
907 | mov al, [cur_rx] ;find current discriptor |
||
908 | imul eax, 12 ; |
||
909 | mov ecx, [rxd+eax+4] ; get receive status |
||
910 | ;**************Check Status ************** |
||
911 | mov ebx, ecx ;move status |
||
912 | ;Check RX_Status to see if packet is waiting |
||
913 | and ebx, 0x80000000 |
||
914 | jnz SIS900_poll_IS_packet |
||
915 | ret |
||
916 | ;**********There is a packet waiting check it for errors************** |
||
917 | SIS900_poll_IS_packet: |
||
918 | mov ebx, ecx ;move status |
||
919 | and ebx, 0x67C0000 ;see if there are any errors |
||
920 | jnz SIS900_Poll_Error_Status |
||
921 | ;**************Check size of packet************* |
||
922 | and ecx, SIS900_DSIZE ;get packet size minus CRC |
||
923 | cmp cx, SIS900_CRC_SIZE |
||
924 | ;make sure packet contains data |
||
925 | jle SIS900_Poll_Error_Size |
||
926 | ;*******Copy Good Packet to receive buffer****** |
||
927 | sub cx, SIS900_CRC_SIZE ;dont want crc |
||
928 | mov word [eth_rx_data_len], cx ;save size of packet |
||
929 | ;**********Continue copying packet**************** |
||
930 | push ecx |
||
931 | ; first copy dword-wise, divide size by 4 |
||
932 | shr ecx, 2 |
||
933 | mov esi, [rxd+eax+8] ; set source |
||
934 | mov edi, Ether_buffer ; set destination |
||
935 | cld ; clear direction |
||
936 | rep movsd ; copy the dwords |
||
937 | pop ecx |
||
938 | and ecx, 3 ; |
||
939 | rep movsb |
||
940 | ;********Debug, tell user we have a good packet************* |
||
941 | if defined SIS900_DEBUG |
||
942 | mov esi, SIS900_Debug_Pull_Packet_good |
||
943 | call sys_msg_board_str |
||
944 | end if |
||
945 | jmp SIS900_Poll_Cnt ; |
||
946 | ;*************Error occured let user know through debug window*********** |
||
947 | SIS900_Poll_Error_Status: |
||
948 | if defined SIS900_DEBUG |
||
949 | mov esi, SIS900_Debug_Pull_Bad_Packet_Status |
||
950 | call sys_msg_board_str |
||
951 | end if |
||
952 | jmp SIS900_Poll_Cnt |
||
953 | SIS900_Poll_Error_Size: |
||
954 | if defined SIS900_DEBUG |
||
955 | mov esi, SIS900_Debug_Pull_Bad_Packet_Size |
||
956 | call sys_msg_board_str |
||
957 | end if |
||
958 | ;*************Increment to next available descriptor************** |
||
959 | SIS900_Poll_Cnt: |
||
960 | ;Reset status, allow ethernet card access to descriptor |
||
961 | mov ecx, RX_BUFF_SZ |
||
962 | mov [rxd+eax+4], ecx ; |
||
963 | inc [cur_rx] ;get next descriptor |
||
964 | and [cur_rx],3 ;only 4 descriptors 0-3 |
||
965 | ;******Enable Receiver************ |
||
966 | mov ebp, [io_addr] ; Base Address |
||
967 | lea edx,[ebp+SIS900_cr] ; Command Register offset |
||
968 | in eax, dx ; Get current Command Register |
||
969 | or eax, SIS900_RxENA ;Enable Receive |
||
970 | out dx, eax |
||
971 | ret |
||
972 | ;*************************************************************************** |
||
973 | ; Function |
||
974 | ; SIS900_transmit |
||
975 | ; Description |
||
976 | ; Transmits a packet of data via the ethernet card |
||
977 | ; Pointer to 48 bit destination address in edi |
||
978 | ; Type of packet in bx |
||
979 | ; size of packet in ecx |
||
980 | ; pointer to packet data in esi |
||
981 | ; |
||
982 | ; only one transmit descriptor is used |
||
983 | ; |
||
984 | ;*************************************************************************** |
||
985 | if defined SIS900_DEBUG |
||
986 | SIS900_Debug_Transmit_Packet db 'Transmitting Packet: ',13,10,0 |
||
987 | SIS900_Debug_Transmit_Packet_Err db 'Transmitting Packet Error: ',13,10,0 |
||
988 | end if |
||
989 | SIS900_transmit: |
||
990 | mov ebp, [io_addr] ; Base Address |
||
991 | ;******** Stop the transmitter ******** |
||
992 | lea edx,[ebp+SIS900_cr] ; Command Register offset |
||
993 | in eax, dx ; Get current Command Register |
||
994 | or eax, SIS900_TxDIS ; Disable Transmitter |
||
995 | out dx, eax |
||
996 | ;*******load Transmit Descriptor Register ******* |
||
997 | lea edx,[ebp+SIS900_txdp] |
||
998 | mov eax, txd |
||
999 | out dx, eax |
||
1000 | ;******* copy packet to descriptor******* |
||
1001 | push esi |
||
1002 | mov esi, edi ;copy destination addess |
||
1003 | mov edi, txb |
||
1004 | cld |
||
1005 | movsd |
||
1006 | movsw |
||
1007 | mov esi, node_addr ;copy my mac address |
||
1008 | movsd |
||
1009 | movsw |
||
1010 | mov [edi], bx ;copy packet type |
||
1011 | add edi, 2 |
||
1012 | pop esi ;restore pointer to source of packet |
||
1013 | push ecx ;save packet size |
||
1014 | shr ecx, 2 ;divide by 4, size in bytes send in dwords |
||
1015 | rep movsd ;copy data to decriptor |
||
1016 | pop ecx ;restore packet size |
||
1017 | push ecx ;save packet size |
||
1018 | and ecx, 3 ;last three bytes if not a multiple of 4 |
||
1019 | rep movsb |
||
1020 | ;**************set length tag************** |
||
1021 | pop ecx ;restore packet size |
||
1022 | add ecx, SIS900_ETH_HLEN ;add header to length |
||
1023 | and ecx, SIS900_DSIZE ; |
||
1024 | ;**************pad to minimum packet size **************not needed |
||
1025 | ;cmp ecx, SIS900_ETH_ZLEN |
||
1026 | ;jge SIS900_transmit_Size_Ok |
||
1027 | ;push ecx |
||
1028 | ;mov ebx, SIS900_ETH_ZLEN |
||
1029 | ;sub ebx, ecx |
||
1030 | ;mov ecx, ebx |
||
1031 | ;rep movsb |
||
1032 | ;pop ecx |
||
1033 | SIS900_transmit_Size_Ok: |
||
1034 | mov [txd+4], dword 0x80000000 ;card owns descriptor |
||
1035 | or [txd+4], ecx ;set size of packet |
||
1036 | if defined SIS900_DEBUG |
||
1037 | mov esi, SIS900_Debug_Transmit_Packet |
||
1038 | call sys_msg_board_str |
||
1039 | end if |
||
1040 | ;***************restart the transmitter ******** |
||
1041 | lea edx,[ebp+SIS900_cr] |
||
1042 | in eax, dx ; Get current Command Register |
||
1043 | or eax, SIS900_TxENA ; Enable Transmitter |
||
1044 | out dx, eax |
||
1045 | ;****make sure packet transmitted successfully**** |
||
1046 | ; mov esi,10 |
||
1047 | ; call delay_ms |
||
1048 | mov eax, [txd+4] |
||
1049 | and eax, 0x6200000 |
||
1050 | jz SIS900_transmit_OK |
||
1051 | ;**************Tell user there was an error through debug window |
||
1052 | if defined SIS900_DEBUG |
||
1053 | mov esi, SIS900_Debug_Transmit_Packet_Err |
||
1054 | call sys_msg_board_str |
||
1055 | end if |
||
1056 | SIS900_transmit_OK: |
||
1057 | ;******** Disable interrupts by clearing the interrupt mask. ******** |
||
1058 | lea edx,[ebp+SIS900_imr] ; Interupt Mask Register |
||
1059 | xor eax, eax |
||
1060 | out dx,eax |
||
1061 | ret |
||
1062 | |||
1063 | ;*************************************************************************** |
||
1064 | ;* Function: Create_Mac_String |
||
1065 | ;* |
||
1066 | ;* Description: Converts the 48 bit value to a string for display |
||
1067 | ;* |
||
1068 | ;* String Format: XX:XX:XX:XX:XX:XX |
||
1069 | ;* |
||
1070 | ;* Arguments: node_addr is location of 48 bit MAC ID |
||
1071 | ;* |
||
1072 | ;* Returns: Prints string to general debug window |
||
1073 | ;* |
||
1074 | ;* |
||
1075 | ;done |
||
1076 | ;*************************************************************************** |
||
1077 | if defined SIS900_DEBUG |
||
1078 | |||
1079 | SIS900_Char_String db '0','1','2','3','4','5','6','7','8','9' |
||
1080 | db 'A','B','C','D','E','F' |
||
1081 | Mac_str_build: times 20 db 0 |
||
1082 | Create_Mac_String: |
||
1083 | pusha |
||
1084 | xor ecx, ecx |
||
1085 | Create_Mac_String_loop: |
||
1086 | mov al,byte [edx+ecx];[node_addr+ecx] |
||
1087 | push eax |
||
1088 | shr eax, 4 |
||
1089 | and eax, 0x0f |
||
1090 | mov bl, byte [SIS900_Char_String+eax] |
||
1091 | mov [Mac_str_build+ecx*3], bl |
||
1092 | pop eax |
||
1093 | and eax, 0x0f |
||
1094 | mov bl, byte [SIS900_Char_String+eax] |
||
1095 | mov [Mac_str_build+1+ecx*3], bl |
||
1096 | cmp ecx, 5 |
||
1097 | je Create_Mac_String_done |
||
1098 | mov bl, ':' |
||
1099 | mov [Mac_str_build+2+ecx*3], bl |
||
1100 | inc ecx |
||
1101 | jmp Create_Mac_String_loop |
||
1102 | Create_Mac_String_done: ;Insert CR and Zero Terminate |
||
1103 | mov [Mac_str_build+2+ecx*3],byte 13 |
||
1104 | mov [Mac_str_build+3+ecx*3],byte 10 |
||
1105 | mov [Mac_str_build+4+ecx*3],byte 0 |
||
1106 | mov esi, Mac_str_build |
||
1107 | call sys_msg_board_str ;Print String to message board |
||
1108 | popa |
||
1109 | ret |
||
1110 | end if |
||
1111 | ;*************************************************************************** |
||
1112 | ;* Set device to be a busmaster in case BIOS neglected to do so. |
||
1113 | ;* Also adjust PCI latency timer to a reasonable value, 64. |
||
1114 | ;*************************************************************************** |
||
1115 | SIS900_adjust_pci_device: |
||
1116 | ;*******Get current setting************************ |
||
1117 | mov al, 2 ;read a word |
||
1118 | mov bh, [pci_dev] |
||
1119 | mov ah, [pci_bus] |
||
1120 | mov bl, 0x04 ;from command Register |
||
1121 | call pci_read_reg |
||
1122 | ;******see if its already set as bus master******** |
||
1123 | mov bx, ax |
||
1124 | and bx,5 |
||
1125 | cmp bx,5 |
||
1126 | je SIS900_adjust_pci_device_Latency |
||
1127 | ;******Make card a bus master******* |
||
1128 | mov cx, ax ;value to write |
||
1129 | mov bh, [pci_dev] |
||
1130 | mov al, 2 ;write a word |
||
1131 | or cx,5 |
||
1132 | mov ah, [pci_bus] |
||
1133 | mov bl, 0x04 ;to command register |
||
1134 | call pci_write_reg |
||
1135 | ;******Check latency setting*********** |
||
1136 | SIS900_adjust_pci_device_Latency: |
||
1137 | ;*******Get current latency setting************************ |
||
1138 | mov al, 1 ;read a byte |
||
1139 | mov bh, [pci_dev] |
||
1140 | mov ah, [pci_bus] |
||
1141 | mov bl, 0x0D ;from Lantency Timer Register |
||
1142 | call pci_read_reg |
||
1143 | ;******see if its aat least 64 clocks******** |
||
1144 | cmp ax,64 |
||
1145 | jge SIS900_adjust_pci_device_Done |
||
1146 | ;******Set latency to 32 clocks******* |
||
1147 | mov cx, 64 ;value to write |
||
1148 | mov bh, [pci_dev] |
||
1149 | mov al, 1 ;write a byte |
||
1150 | mov ah, [pci_bus] |
||
1151 | mov bl, 0x0D ;to Lantency Timer Register |
||
1152 | call pci_write_reg |
||
1153 | ;******Check latency setting*********** |
||
1154 | SIS900_adjust_pci_device_Done: |
||
1155 | ret64bytes) |