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Rev | Author | Line No. | Line |
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261 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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2465 | Serge | 3 | ;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;; |
431 | serge | 4 | ;; Distributed under terms of the GNU General Public License ;; |
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: 2465 $ |
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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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2434 | Serge | 83 | txd: |
84 | times (3 * NUM_TX_DESC) dd 0 |
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85 | rxd: |
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86 | times (3 * NUM_RX_DESC) dd 0 |
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261 | hidnplayr | 87 | endg |
88 | |||
89 | txb equ eth_data_start |
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90 | rxb equ txb + (NUM_TX_DESC * TX_BUFF_SZ) |
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91 | SIS900_ETH_ALEN equ 6 ;* Size of Ethernet address * |
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92 | SIS900_ETH_HLEN equ 14 ;* Size of ethernet header * |
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93 | SIS900_ETH_ZLEN equ 60 ;* Minimum packet length * |
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94 | SIS900_DSIZE equ 0x00000fff |
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95 | SIS900_CRC_SIZE equ 4 |
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96 | SIS900_RFADDR_shift equ 16 |
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97 | ;SIS900 Symbolic offsets to registers. |
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98 | SIS900_cr equ 0x0 ; Command Register |
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99 | SIS900_cfg equ 0x4 ; Configuration Register |
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100 | SIS900_mear equ 0x8 ; EEPROM Access Register |
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101 | SIS900_ptscr equ 0xc ; PCI Test Control Register |
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102 | SIS900_isr equ 0x10 ; Interrupt Status Register |
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103 | SIS900_imr equ 0x14 ; Interrupt Mask Register |
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104 | SIS900_ier equ 0x18 ; Interrupt Enable Register |
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105 | SIS900_epar equ 0x18 ; Enhanced PHY Access Register |
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106 | SIS900_txdp equ 0x20 ; Transmit Descriptor Pointer Register |
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107 | SIS900_txcfg equ 0x24 ; Transmit Configuration Register |
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108 | SIS900_rxdp equ 0x30 ; Receive Descriptor Pointer Register |
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109 | SIS900_rxcfg equ 0x34 ; Receive Configuration Register |
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110 | SIS900_flctrl equ 0x38 ; Flow Control Register |
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111 | SIS900_rxlen equ 0x3c ; Receive Packet Length Register |
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112 | SIS900_rfcr equ 0x48 ; Receive Filter Control Register |
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113 | SIS900_rfdr equ 0x4C ; Receive Filter Data Register |
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114 | SIS900_pmctrl equ 0xB0 ; Power Management Control Register |
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115 | SIS900_pmer equ 0xB4 ; Power Management Wake-up Event Register |
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116 | ;SIS900 Command Register Bits |
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117 | SIS900_RELOAD equ 0x00000400 |
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118 | SIS900_ACCESSMODE equ 0x00000200 |
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119 | SIS900_RESET equ 0x00000100 |
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120 | SIS900_SWI equ 0x00000080 |
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121 | SIS900_RxRESET equ 0x00000020 |
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122 | SIS900_TxRESET equ 0x00000010 |
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123 | SIS900_RxDIS equ 0x00000008 |
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124 | SIS900_RxENA equ 0x00000004 |
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125 | SIS900_TxDIS equ 0x00000002 |
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126 | SIS900_TxENA equ 0x00000001 |
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127 | ;SIS900 Configuration Register Bits |
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128 | SIS900_DESCRFMT equ 0x00000100 ; 7016 specific |
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129 | SIS900_REQALG equ 0x00000080 |
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130 | SIS900_SB equ 0x00000040 |
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131 | SIS900_POW equ 0x00000020 |
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132 | SIS900_EXD equ 0x00000010 |
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133 | SIS900_PESEL equ 0x00000008 |
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134 | SIS900_LPM equ 0x00000004 |
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135 | SIS900_BEM equ 0x00000001 |
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136 | SIS900_RND_CNT equ 0x00000400 |
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137 | SIS900_FAIR_BACKOFF equ 0x00000200 |
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138 | SIS900_EDB_MASTER_EN equ 0x00002000 |
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139 | ;SIS900 Eeprom Access Reigster Bits |
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140 | SIS900_MDC equ 0x00000040 |
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141 | SIS900_MDDIR equ 0x00000020 |
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142 | SIS900_MDIO equ 0x00000010 ; 7016 specific |
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143 | SIS900_EECS equ 0x00000008 |
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144 | SIS900_EECLK equ 0x00000004 |
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145 | SIS900_EEDO equ 0x00000002 |
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146 | SIS900_EEDI equ 0x00000001 |
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147 | ;SIS900 TX Configuration Register Bits |
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148 | SIS900_ATP equ 0x10000000 ;Automatic Transmit Padding |
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149 | SIS900_MLB equ 0x20000000 ;Mac Loopback Enable |
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150 | SIS900_HBI equ 0x40000000 ;HeartBeat Ignore (Req for full-dup) |
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151 | SIS900_CSI equ 0x80000000 ;CarrierSenseIgnore (Req for full-du |
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152 | ;SIS900 RX Configuration Register Bits |
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153 | SIS900_AJAB equ 0x08000000 ; |
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154 | SIS900_ATX equ 0x10000000 ;Accept Transmit Packets |
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155 | SIS900_ARP equ 0x40000000 ;accept runt packets (<64bytes) |
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156 | SIS900_AEP equ 0x80000000 ;accept error packets |
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157 | ;SIS900 Interrupt Reigster Bits |
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158 | SIS900_WKEVT equ 0x10000000 |
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159 | SIS900_TxPAUSEEND equ 0x08000000 |
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160 | SIS900_TxPAUSE equ 0x04000000 |
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161 | SIS900_TxRCMP equ 0x02000000 |
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162 | SIS900_RxRCMP equ 0x01000000 |
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163 | SIS900_DPERR equ 0x00800000 |
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164 | SIS900_SSERR equ 0x00400000 |
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165 | SIS900_RMABT equ 0x00200000 |
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166 | SIS900_RTABT equ 0x00100000 |
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167 | SIS900_RxSOVR equ 0x00010000 |
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168 | SIS900_HIBERR equ 0x00008000 |
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169 | SIS900_SWINT equ 0x00001000 |
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170 | SIS900_MIBINT equ 0x00000800 |
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171 | SIS900_TxURN equ 0x00000400 |
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172 | SIS900_TxIDLE equ 0x00000200 |
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173 | SIS900_TxERR equ 0x00000100 |
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174 | SIS900_TxDESC equ 0x00000080 |
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175 | SIS900_TxOK equ 0x00000040 |
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176 | SIS900_RxORN equ 0x00000020 |
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177 | SIS900_RxIDLE equ 0x00000010 |
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178 | SIS900_RxEARLY equ 0x00000008 |
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179 | SIS900_RxERR equ 0x00000004 |
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180 | SIS900_RxDESC equ 0x00000002 |
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181 | SIS900_RxOK equ 0x00000001 |
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182 | ;SIS900 Interrupt Enable Reigster Bits |
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183 | SIS900_IE equ 0x00000001 |
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184 | ;SIS900 Revision ID |
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185 | SIS900B_900_REV equ 0x03 |
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186 | SIS630A_900_REV equ 0x80 |
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187 | SIS630E_900_REV equ 0x81 |
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188 | SIS630S_900_REV equ 0x82 |
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189 | SIS630EA1_900_REV equ 0x83 |
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190 | SIS630ET_900_REV equ 0x84 |
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191 | SIS635A_900_REV equ 0x90 |
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192 | SIS900_960_REV equ 0x91 |
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193 | ;SIS900 Receive Filter Control Register Bits |
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194 | SIS900_RFEN equ 0x80000000 |
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195 | SIS900_RFAAB equ 0x40000000 |
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196 | SIS900_RFAAM equ 0x20000000 |
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197 | SIS900_RFAAP equ 0x10000000 |
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198 | SIS900_RFPromiscuous equ 0x70000000 |
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199 | ;SIS900 Reveive Filter Data Mask |
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200 | SIS900_RFDAT equ 0x0000FFFF |
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201 | ;SIS900 Eeprom Address |
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202 | SIS900_EEPROMSignature equ 0x00 |
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203 | SIS900_EEPROMVendorID equ 0x02 |
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204 | SIS900_EEPROMDeviceID equ 0x03 |
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205 | SIS900_EEPROMMACAddr equ 0x08 |
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206 | SIS900_EEPROMChecksum equ 0x0b |
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207 | ;The EEPROM commands include the alway-set leading bit. |
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208 | ;SIS900 Eeprom Command |
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209 | SIS900_EEread equ 0x0180 |
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210 | SIS900_EEwrite equ 0x0140 |
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211 | SIS900_EEerase equ 0x01C0 |
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212 | SIS900_EEwriteEnable equ 0x0130 |
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213 | SIS900_EEwriteDisable equ 0x0100 |
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214 | SIS900_EEeraseAll equ 0x0120 |
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215 | SIS900_EEwriteAll equ 0x0110 |
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216 | SIS900_EEaddrMask equ 0x013F |
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217 | SIS900_EEcmdShift equ 16 |
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218 | ;For SiS962 or SiS963, request the eeprom software access |
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219 | SIS900_EEREQ equ 0x00000400 |
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220 | SIS900_EEDONE equ 0x00000200 |
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221 | SIS900_EEGNT equ 0x00000100 |
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222 | ;General Varibles |
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2434 | Serge | 223 | SIS900_pci_revision: |
224 | db 0 |
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261 | hidnplayr | 225 | SIS900_Status dd 0x03000000 |
226 | sis900_specific_table: |
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227 | ; dd SIS630A_900_REV,Get_Mac_SIS630A_900_REV,0 |
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228 | ; dd SIS630E_900_REV,Get_Mac_SIS630E_900_REV,0 |
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229 | dd SIS630S_900_REV,Get_Mac_SIS635_900_REV,0 |
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230 | dd SIS630EA1_900_REV,Get_Mac_SIS635_900_REV,0 |
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231 | dd SIS630ET_900_REV,Get_Mac_SIS635_900_REV,0;SIS630ET_900_REV_SpecialFN |
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232 | dd SIS635A_900_REV,Get_Mac_SIS635_900_REV,0 |
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233 | dd SIS900_960_REV,SIS960_get_mac_addr,0 |
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234 | dd SIS900B_900_REV,SIS900_get_mac_addr,0 |
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235 | dd 0,0,0,0 ; end of list |
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2434 | Serge | 236 | sis900_get_mac_func: |
237 | dd 0 |
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238 | sis900_special_func: |
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239 | dd 0 |
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240 | sis900_table_entries: |
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241 | db 8 |
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261 | hidnplayr | 242 | |
243 | ;*************************************************************************** |
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244 | ; Function |
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245 | ; SIS900_probe |
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246 | ; Description |
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247 | ; Searches for an ethernet card, enables it and clears the rx buffer |
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248 | ; If a card was found, it enables the ethernet -> TCPIP link |
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249 | ;not done - still need to probe mii transcievers |
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250 | ;*************************************************************************** |
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251 | if defined SIS900_DEBUG |
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252 | SIS900_Debug_Str_Unsupported db 'Sorry your card is unsupported ',13,10,0 |
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253 | end if |
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254 | SIS900_probe: |
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255 | ;******Wake Up Chip******* |
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2434 | Serge | 256 | mov al, 4 |
257 | mov bh, [pci_dev] |
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258 | mov ecx, 0 |
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259 | mov ah, [pci_bus] |
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260 | mov bl, 0x40 |
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261 | call pci_write_reg |
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261 | hidnplayr | 262 | ;*******Set some PCI Settings********* |
2434 | Serge | 263 | call SIS900_adjust_pci_device |
261 | hidnplayr | 264 | ;*****Get Card Revision****** |
2434 | Serge | 265 | mov al, 1 ;one byte to read |
266 | mov bh, [pci_dev] |
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267 | mov ah, [pci_bus] |
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268 | mov bl, 0x08 ;Revision Register |
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269 | call pci_read_reg |
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270 | mov [SIS900_pci_revision], al;save the revision for later use |
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261 | hidnplayr | 271 | ;****** Look up through the sis900_specific_table |
2434 | Serge | 272 | mov esi, sis900_specific_table |
261 | hidnplayr | 273 | .probe_loop: |
2434 | Serge | 274 | cmp dword [esi], 0 ; Check if we reached end of the list |
275 | je .probe_loop_failed |
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276 | cmp al, [esi] ; Check if revision is OK |
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277 | je .probe_loop_ok |
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278 | add esi, 12 ; Advance to next entry |
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279 | jmp .probe_loop |
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261 | hidnplayr | 280 | .probe_loop_failed: |
2434 | Serge | 281 | jmp SIS900_Probe_Unsupported |
261 | hidnplayr | 282 | ;*********Find Get Mac Function********* |
283 | .probe_loop_ok: |
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2434 | Serge | 284 | mov eax, [esi+4] ; Get pointer to "get MAC" function |
285 | mov [sis900_get_mac_func], eax |
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286 | mov eax, [esi+8] ; Get pointer to special initialization fn |
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287 | mov [sis900_special_func], eax |
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261 | hidnplayr | 288 | ;******** Get MAC ******** |
2434 | Serge | 289 | call dword [sis900_get_mac_func] |
261 | hidnplayr | 290 | ;******** Call special initialization fn if requested ******** |
2434 | Serge | 291 | cmp dword [sis900_special_func], 0 |
292 | je .no_special_init |
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293 | call dword [sis900_special_func] |
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261 | hidnplayr | 294 | .no_special_init: |
295 | ;******** Set table entries ******** |
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2434 | Serge | 296 | mov al, [SIS900_pci_revision] |
297 | cmp al, SIS635A_900_REV |
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298 | jae .ent16 |
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299 | cmp al, SIS900B_900_REV |
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300 | je .ent16 |
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301 | jmp .ent8 |
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261 | hidnplayr | 302 | .ent16: |
2434 | Serge | 303 | mov byte [sis900_table_entries], 16 |
261 | hidnplayr | 304 | .ent8: |
305 | ;*******Probe for mii transceiver******* |
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306 | ;TODO!!********************* |
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307 | ;*******Initialize Device******* |
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2434 | Serge | 308 | call sis900_init |
309 | ret |
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261 | hidnplayr | 310 | |
311 | SIS900_Probe_Unsupported: |
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312 | if defined SIS900_DEBUG |
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2434 | Serge | 313 | mov esi, SIS900_Debug_Str_Unsupported |
314 | call sys_msg_board_str |
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261 | hidnplayr | 315 | end if |
2434 | Serge | 316 | ret |
261 | hidnplayr | 317 | ;*************************************************************************** |
318 | ; Function: sis900_init |
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319 | ; |
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320 | ; Description: resets the ethernet controller chip and various |
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321 | ; data structures required for sending and receiving packets. |
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322 | ; |
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323 | ; Arguments: |
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324 | ; |
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325 | ; returns: none |
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326 | ;not done |
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327 | ;*************************************************************************** |
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328 | sis900_init: |
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2434 | Serge | 329 | call SIS900_reset ;Done |
330 | call SIS900_init_rxfilter;Done |
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331 | call SIS900_init_txd;Done |
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332 | call SIS900_init_rxd ;Done |
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333 | call SIS900_set_rx_mode;done |
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334 | call SIS900_set_tx_mode |
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261 | hidnplayr | 335 | ;call SIS900_check_mode |
2434 | Serge | 336 | ret |
261 | hidnplayr | 337 | |
338 | ;*************************************************************************** |
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339 | ; Function |
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340 | ; SIS900_reset |
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341 | ; Description |
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342 | ; disables interrupts and soft resets the controller chip |
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343 | ; |
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344 | ;done+ |
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345 | ;*************************************************************************** |
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346 | if defined SIS900_DEBUG |
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347 | SIS900_Debug_Reset_Failed db 'Reset Failed ',0 |
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348 | end if |
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349 | SIS900_reset: |
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350 | ;******Disable Interrupts and reset Receive Filter******* |
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2434 | Serge | 351 | mov ebp, [io_addr] ; base address |
352 | xor eax, eax ; 0 to initialize |
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353 | lea edx, [ebp+SIS900_ier] |
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354 | out dx, eax ; Write 0 to location |
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355 | lea edx, [ebp+SIS900_imr] |
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356 | out dx, eax ; Write 0 to location |
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357 | lea edx, [ebp+SIS900_rfcr] |
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358 | out dx, eax ; Write 0 to location |
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261 | hidnplayr | 359 | ;*******Reset Card*********************************************** |
2434 | Serge | 360 | lea edx, [ebp+SIS900_cr] |
361 | in eax, dx ; Get current Command Register |
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362 | or eax, SIS900_RESET ; set flags |
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363 | or eax, SIS900_RxRESET ; |
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364 | or eax, SIS900_TxRESET ; |
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365 | out dx, eax ; Write new Command Register |
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261 | hidnplayr | 366 | ;*******Wait Loop************************************************ |
2434 | Serge | 367 | lea edx, [ebp+SIS900_isr] |
368 | mov ecx, [SIS900_Status]; Status we would like to see from card |
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369 | mov ebx, 2001 ; only loop 1000 times |
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261 | hidnplayr | 370 | SIS900_Wait: |
2434 | Serge | 371 | dec ebx ; 1 less loop |
372 | jz SIS900_DoneWait_e ; 1000 times yet? |
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373 | in eax, dx ; move interrup status to eax |
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374 | and eax, ecx |
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375 | xor ecx, eax |
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376 | jz SIS900_DoneWait |
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377 | jmp SIS900_Wait |
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261 | hidnplayr | 378 | SIS900_DoneWait_e: |
379 | if defined SIS900_DEBUG |
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2434 | Serge | 380 | mov esi, SIS900_Debug_Reset_Failed |
381 | call sys_msg_board_str |
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261 | hidnplayr | 382 | end if |
383 | SIS900_DoneWait: |
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384 | ;*******Set Configuration Register depending on Card Revision******** |
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2434 | Serge | 385 | lea edx, [ebp+SIS900_cfg] |
386 | mov eax, SIS900_PESEL ; Configuration Register Bit |
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387 | mov bl, [SIS900_pci_revision]; card revision |
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388 | mov cl, SIS635A_900_REV ; Check card revision |
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389 | cmp bl, cl |
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390 | je SIS900_RevMatch |
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391 | mov cl, SIS900B_900_REV ; Check card revision |
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392 | cmp bl, cl |
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393 | je SIS900_RevMatch |
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394 | out dx, eax ; no revision match |
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395 | jmp SIS900_Reset_Complete |
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261 | hidnplayr | 396 | SIS900_RevMatch: ; Revision match |
2434 | Serge | 397 | or eax, SIS900_RND_CNT ; Configuration Register Bit |
398 | out dx, eax |
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261 | hidnplayr | 399 | SIS900_Reset_Complete: |
2434 | Serge | 400 | mov eax, [pci_data] |
401 | mov [eth_status], eax |
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402 | ret |
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261 | hidnplayr | 403 | |
404 | ;*************************************************************************** |
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405 | ; Function: sis_init_rxfilter |
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406 | ; |
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407 | ; Description: sets receive filter address to our MAC address |
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408 | ; |
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409 | ; Arguments: |
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410 | ; |
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411 | ; returns: |
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412 | ;done+ |
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413 | ;*************************************************************************** |
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414 | SIS900_init_rxfilter: |
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415 | ;****Get Receive Filter Control Register ******** |
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2434 | Serge | 416 | mov ebp, [io_addr] ; base address |
417 | lea edx, [ebp+SIS900_rfcr] |
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418 | in eax, dx ; get register |
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419 | push eax |
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261 | hidnplayr | 420 | ;****disable packet filtering before setting filter******* |
2434 | Serge | 421 | mov eax, SIS900_RFEN;move receive filter enable flag |
422 | not eax ;1s complement |
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423 | pop ebx ;and with our saved register |
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424 | and eax, ebx ;disable receiver |
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425 | push ebx ;save filter for another use |
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426 | out dx, eax ;set receive disabled |
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261 | hidnplayr | 427 | ;********load MAC addr to filter data register********* |
2434 | Serge | 428 | xor ecx, ecx |
261 | hidnplayr | 429 | SIS900_RXINT_Mac_Write: |
430 | ;high word of eax tells card which mac byte to write |
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2434 | Serge | 431 | mov eax, ecx |
432 | lea edx, [ebp+SIS900_rfcr] |
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433 | shl eax, 16 ; |
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434 | out dx, eax ; |
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435 | lea edx, [ebp+SIS900_rfdr] |
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436 | mov ax, word [node_addr+ecx*2]; Get Mac ID word |
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437 | out dx, ax ; Send Mac ID |
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438 | inc cl ; send next word |
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439 | cmp cl, 3 ; more to send? |
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440 | jne SIS900_RXINT_Mac_Write |
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261 | hidnplayr | 441 | ;********enable packet filitering ***** |
2434 | Serge | 442 | pop eax ;old register value |
443 | lea edx, [ebp+SIS900_rfcr] |
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444 | or eax, SIS900_RFEN;enable filtering |
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445 | out dx, eax ;set register |
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446 | ret |
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261 | hidnplayr | 447 | |
448 | ;*************************************************************************** |
||
449 | ;* |
||
450 | ;* Function: sis_init_txd |
||
451 | ;* |
||
452 | ;* Description: initializes the Tx descriptor |
||
453 | ;* |
||
454 | ;* Arguments: |
||
455 | ;* |
||
456 | ;* returns: |
||
457 | ;*done |
||
458 | ;*************************************************************************** |
||
459 | SIS900_init_txd: |
||
460 | ;********** initialize TX descriptor ************** |
||
2434 | Serge | 461 | mov [txd], dword 0 ;put link to next descriptor in link field |
462 | mov [txd+4], dword 0;clear status field |
||
463 | mov [txd+8], dword txb - OS_BASE;save address to buffer ptr field |
||
261 | hidnplayr | 464 | ;*************** load Transmit Descriptor Register *************** |
2434 | Serge | 465 | mov dx, [io_addr] ; base address |
466 | add dx, SIS900_txdp ; TX Descriptor Pointer |
||
467 | mov eax, txd - OS_BASE ; First Descriptor |
||
468 | out dx, eax ; move the pointer |
||
469 | ret |
||
261 | hidnplayr | 470 | |
471 | ;*************************************************************************** |
||
472 | ;* Function: sis_init_rxd |
||
473 | ;* |
||
474 | ;* Description: initializes the Rx descriptor ring |
||
475 | ;* |
||
476 | ;* Arguments: |
||
477 | ;* |
||
478 | ;* Returns: |
||
479 | ;*done |
||
480 | ;*************************************************************************** |
||
481 | SIS900_init_rxd: |
||
2434 | Serge | 482 | xor ecx, ecx |
483 | mov [cur_rx], cl ;Set cuurent rx discriptor to 0 |
||
261 | hidnplayr | 484 | ;******** init RX descriptors ******** |
485 | SIS900_init_rxd_Loop: |
||
2434 | Serge | 486 | mov eax, ecx ;current descriptor |
487 | imul eax, 12 ; |
||
488 | mov ebx, ecx ;determine next link descriptor |
||
489 | inc ebx ; |
||
490 | cmp ebx, NUM_RX_DESC ; |
||
491 | jne SIS900_init_rxd_Loop_0 ; |
||
492 | xor ebx, ebx ; |
||
261 | hidnplayr | 493 | SIS900_init_rxd_Loop_0: ; |
2434 | Serge | 494 | imul ebx, 12 ; |
495 | add ebx, rxd - OS_BASE ; |
||
496 | mov [rxd+eax], ebx ;save link to next descriptor |
||
497 | mov [rxd+eax+4], dword RX_BUFF_SZ ;status bits init to buf size |
||
498 | mov ebx, ecx ;find where the buf is located |
||
499 | imul ebx, RX_BUFF_SZ ; |
||
500 | add ebx, rxb - OS_BASE ; |
||
501 | mov [rxd+eax+8], ebx ;save buffer pointer |
||
502 | inc ecx ;next descriptor |
||
503 | cmp ecx, NUM_RX_DESC ; |
||
504 | jne SIS900_init_rxd_Loop ; |
||
261 | hidnplayr | 505 | ;********* load Receive Descriptor Register with address of first |
506 | ; descriptor********* |
||
2434 | Serge | 507 | mov dx, [io_addr] |
508 | add dx, SIS900_rxdp |
||
509 | mov eax, rxd - OS_BASE |
||
510 | out dx, eax |
||
511 | ret |
||
261 | hidnplayr | 512 | |
513 | ;*************************************************************************** |
||
514 | ;* Function: sis900_set_tx_mode |
||
515 | ;* |
||
516 | ;* Description: |
||
517 | ;* sets the transmit mode to allow for full duplex |
||
518 | ;* |
||
519 | ;* |
||
520 | ;* Arguments: |
||
521 | ;* |
||
522 | ;* Returns: |
||
523 | ;* |
||
524 | ;* Comments: |
||
525 | ;* If you are having problems transmitting packet try changing the |
||
526 | ;* Max DMA Burst, Possible settings are as follows: |
||
527 | ;* 0x00000000 = 512 bytes |
||
528 | ;* 0x00100000 = 4 bytes |
||
529 | ;* 0x00200000 = 8 bytes |
||
530 | ;* 0x00300000 = 16 bytes |
||
531 | ;* 0x00400000 = 32 bytes |
||
532 | ;* 0x00500000 = 64 bytes |
||
533 | ;* 0x00600000 = 128 bytes |
||
534 | ;* 0x00700000 = 256 bytes |
||
535 | ;*************************************************************************** |
||
536 | SIS900_set_tx_mode: |
||
2434 | Serge | 537 | mov ebp, [io_addr] |
538 | lea edx, [ebp+SIS900_cr] |
||
539 | in eax, dx ; Get current Command Register |
||
540 | or eax, SIS900_TxENA;Enable Receive |
||
541 | out dx, eax |
||
542 | lea edx, [ebp+SIS900_txcfg]; Transmit config Register offset |
||
543 | mov eax, SIS900_ATP ;allow automatic padding |
||
544 | or eax, SIS900_HBI ;allow heartbeat ignore |
||
545 | or eax, SIS900_CSI ;allow carrier sense ignore |
||
546 | or eax, 0x00600000 ;Max DMA Burst |
||
547 | or eax, 0x00000100 ;TX Fill Threshold |
||
548 | or eax, 0x00000020 ;TX Drain Threshold |
||
549 | out dx, eax |
||
550 | ret |
||
261 | hidnplayr | 551 | |
552 | ;*************************************************************************** |
||
553 | ;* Function: sis900_set_rx_mode |
||
554 | ;* |
||
555 | ;* Description: |
||
556 | ;* sets the receive mode to accept all broadcast packets and packets |
||
557 | ;* with our MAC address, and reject all multicast packets. Also allows |
||
558 | ;* full-duplex |
||
559 | ;* |
||
560 | ;* Arguments: |
||
561 | ;* |
||
562 | ;* Returns: |
||
563 | ;* |
||
564 | ;* Comments: |
||
565 | ;* If you are having problems receiving packet try changing the |
||
566 | ;* Max DMA Burst, Possible settings are as follows: |
||
567 | ;* 0x00000000 = 512 bytes |
||
568 | ;* 0x00100000 = 4 bytes |
||
569 | ;* 0x00200000 = 8 bytes |
||
570 | ;* 0x00300000 = 16 bytes |
||
571 | ;* 0x00400000 = 32 bytes |
||
572 | ;* 0x00500000 = 64 bytes |
||
573 | ;* 0x00600000 = 128 bytes |
||
574 | ;* 0x00700000 = 256 bytes |
||
575 | ;*************************************************************************** |
||
2434 | Serge | 576 | SIS900_mc_filter: |
577 | times 16 dw 0 |
||
261 | hidnplayr | 578 | SIS900_set_rx_mode: |
2434 | Serge | 579 | mov ebp, [io_addr] |
261 | hidnplayr | 580 | ;**************update Multicast Hash Table in Receive Filter |
2434 | Serge | 581 | mov ebx, 0xffff |
582 | xor cl, cl |
||
261 | hidnplayr | 583 | SIS900_set_rx_mode_Loop: |
2434 | Serge | 584 | mov eax, ecx |
585 | shl eax, 1 |
||
586 | mov [SIS900_mc_filter+eax], bx |
||
587 | lea edx, [ebp+SIS900_rfcr] ; Receive Filter Control Reg offset |
||
588 | mov eax, 4 ;determine table entry |
||
589 | add al, cl |
||
590 | shl eax, 16 |
||
591 | out dx, eax ;tell card which entry to modify |
||
592 | lea edx, [ebp+SIS900_rfdr] ; Receive Filter Control Reg offset |
||
593 | mov eax, ebx ;entry value |
||
594 | out dx, ax ;write value to table in card |
||
595 | inc cl ;next entry |
||
596 | cmp cl, [sis900_table_entries]; |
||
597 | jl SIS900_set_rx_mode_Loop |
||
261 | hidnplayr | 598 | ;*******Set Receive Filter Control Register************* |
2434 | Serge | 599 | lea edx, [ebp+SIS900_rfcr] ; Receive Filter Control Register offset |
600 | mov eax, SIS900_RFAAB ;accecpt all broadcast packets |
||
601 | or eax, SIS900_RFAAM ;accept all multicast packets |
||
602 | or eax, SIS900_RFAAP ;Accept all packets |
||
603 | or eax, SIS900_RFEN ;enable receiver filter |
||
604 | out dx, eax |
||
261 | hidnplayr | 605 | ;******Enable Receiver************ |
2434 | Serge | 606 | lea edx, [ebp+SIS900_cr]; Command Register offset |
607 | in eax, dx ; Get current Command Register |
||
608 | or eax, SIS900_RxENA;Enable Receive |
||
609 | out dx, eax |
||
261 | hidnplayr | 610 | ;*********Set |
2434 | Serge | 611 | lea edx, [ebp+SIS900_rxcfg] ; Receive Config Register offset |
612 | mov eax, SIS900_ATX ;Accept Transmit Packets |
||
261 | hidnplayr | 613 | ; (Req for full-duplex and PMD Loopback) |
2434 | Serge | 614 | or eax, 0x00600000 ;Max DMA Burst |
615 | or eax, 0x00000002 ;RX Drain Threshold, 8X8 bytes or 64bytes |
||
616 | out dx, eax ; |
||
617 | ret |
||
261 | hidnplayr | 618 | |
619 | ;*************************************************************************** |
||
620 | ; * SIS960_get_mac_addr: - Get MAC address for SiS962 or SiS963 model |
||
621 | ; * @pci_dev: the sis900 pci device |
||
622 | ; * @net_dev: the net device to get address for |
||
623 | ; * |
||
624 | ; * SiS962 or SiS963 model, use EEPROM to store MAC address. And EEPROM |
||
625 | ; * is shared by |
||
626 | ; * LAN and 1394. When access EEPROM, send EEREQ signal to hardware first |
||
627 | ; * and wait for EEGNT. If EEGNT is ON, EEPROM is permitted to be access |
||
628 | ; * by LAN, otherwise is not. After MAC address is read from EEPROM, send |
||
629 | ; * EEDONE signal to refuse EEPROM access by LAN. |
||
630 | ; * The EEPROM map of SiS962 or SiS963 is different to SiS900. |
||
631 | ; * The signature field in SiS962 or SiS963 spec is meaningless. |
||
632 | ; * MAC address is read into @net_dev->dev_addr. |
||
633 | ; *done |
||
634 | ;* |
||
635 | ;* Return 0 is EAX = failure |
||
636 | ;*Done+ |
||
637 | ;*************************************************************************** |
||
638 | if defined SIS900_DEBUG |
||
639 | SIS900_Debug_Str_GetMac_Start db 'Attempting to get SIS900 Mac ID: ',13,10,0 |
||
640 | SIS900_Debug_Str_GetMac_Failed db 'Access to EEprom Failed',13,10,0 |
||
641 | SIS900_Debug_Str_GetMac_Address db 'Your Mac ID is: ',0 |
||
642 | SIS900_Debug_Str_GetMac_Address2 db 'Your SIS96x Mac ID is: ',0 |
||
643 | end if |
||
644 | SIS960_get_mac_addr: |
||
2434 | Serge | 645 | mov ebp, [io_addr] |
261 | hidnplayr | 646 | ;**********Send Request for eeprom access********************* |
2434 | Serge | 647 | lea edx, [ebp+SIS900_mear] ; Eeprom access register |
648 | mov eax, SIS900_EEREQ ; Request access to eeprom |
||
649 | out dx, eax ; Send request |
||
650 | xor ebx, ebx ; |
||
261 | hidnplayr | 651 | ;******Loop 4000 times and if access not granted error out***** |
652 | SIS96X_Get_Mac_Wait: |
||
2434 | Serge | 653 | in eax, dx ;get eeprom status |
654 | and eax, SIS900_EEGNT ;see if eeprom access granted flag is set |
||
655 | jnz SIS900_Got_EEP_Access ;if it is, go access the eeprom |
||
656 | inc ebx ;else keep waiting |
||
657 | cmp ebx, 4000 ;have we tried 4000 times yet? |
||
658 | jl SIS96X_Get_Mac_Wait ;if not ask again |
||
659 | xor eax, eax ;return zero in eax indicating failure |
||
261 | hidnplayr | 660 | ;*******Debug ********************** |
661 | if defined SIS900_DEBUG |
||
2434 | Serge | 662 | mov esi, SIS900_Debug_Str_GetMac_Failed |
663 | call sys_msg_board_str |
||
261 | hidnplayr | 664 | end if |
2434 | Serge | 665 | jmp SIS960_get_mac_addr_done |
261 | hidnplayr | 666 | ;**********EEprom access granted, read MAC from card************* |
667 | SIS900_Got_EEP_Access: |
||
668 | ; zero based so 3-16 bit reads will take place |
||
2434 | Serge | 669 | mov ecx, 2 |
261 | hidnplayr | 670 | SIS96x_mac_read_loop: |
2434 | Serge | 671 | mov eax, SIS900_EEPROMMACAddr;Base Mac Address |
672 | add eax, ecx ;Current Mac Byte Offset |
||
673 | push ecx |
||
674 | call sis900_read_eeprom ;try to read 16 bits |
||
675 | pop ecx |
||
676 | mov [node_addr+ecx*2], ax ;save 16 bits to the MAC ID varible |
||
677 | dec ecx ;one less word to read |
||
678 | jns SIS96x_mac_read_loop ;if more read more |
||
679 | mov eax, 1 ;return non-zero indicating success |
||
261 | hidnplayr | 680 | ;*******Debug Print MAC ID to debug window********************** |
681 | if defined SIS900_DEBUG |
||
2434 | Serge | 682 | mov esi, SIS900_Debug_Str_GetMac_Address2 |
683 | call sys_msg_board_str |
||
684 | mov edx, node_addr |
||
685 | call Create_Mac_String |
||
261 | hidnplayr | 686 | end if |
687 | ;**********Tell EEPROM We are Done Accessing It********************* |
||
688 | SIS960_get_mac_addr_done: |
||
2434 | Serge | 689 | lea edx, [ebp+SIS900_mear] ; Eeprom access register |
690 | mov eax, SIS900_EEDONE ;tell eeprom we are done |
||
691 | out dx, eax |
||
692 | ret |
||
261 | hidnplayr | 693 | ;*************************************************************************** |
694 | ;* sis900_get_mac_addr: - Get MAC address for stand alone SiS900 model |
||
695 | ;* @pci_dev: the sis900 pci device |
||
696 | ;* @net_dev: the net device to get address for |
||
697 | ;* |
||
698 | ;* Older SiS900 and friends, use EEPROM to store MAC address. |
||
699 | ;* MAC address is read from read_eeprom() into @net_dev->dev_addr. |
||
700 | ;* done/untested |
||
701 | ;*************************************************************************** |
||
702 | SIS900_get_mac_addr: |
||
703 | ;*******Debug ********************** |
||
704 | if defined SIS900_DEBUG |
||
2434 | Serge | 705 | mov esi, SIS900_Debug_Str_GetMac_Start |
706 | call sys_msg_board_str |
||
261 | hidnplayr | 707 | end if |
708 | ;******** check to see if we have sane EEPROM ******* |
||
2434 | Serge | 709 | mov eax, SIS900_EEPROMSignature;Base Eeprom Signature |
710 | call sis900_read_eeprom ;try to read 16 bits |
||
711 | cmp ax, 0xffff |
||
712 | je SIS900_Bad_Eeprom |
||
713 | cmp ax, 0 |
||
714 | je SIS900_Bad_Eeprom |
||
261 | hidnplayr | 715 | ;**************Read MacID************** |
716 | ; zero based so 3-16 bit reads will take place |
||
2434 | Serge | 717 | mov ecx, 2 |
261 | hidnplayr | 718 | SIS900_mac_read_loop: |
2434 | Serge | 719 | mov eax, SIS900_EEPROMMACAddr;Base Mac Address |
720 | add eax, ecx ;Current Mac Byte Offset |
||
721 | push ecx |
||
722 | call sis900_read_eeprom ;try to read 16 bits |
||
723 | pop ecx |
||
724 | mov [node_addr+ecx*2], ax ;save 16 bits to the MAC ID storage |
||
725 | dec ecx ;one less word to read |
||
726 | jns SIS900_mac_read_loop ;if more read more |
||
727 | mov eax, 1 ;return non-zero indicating success |
||
261 | hidnplayr | 728 | ;*******Debug Print MAC ID to debug window********************** |
729 | if defined SIS900_DEBUG |
||
2434 | Serge | 730 | mov esi, SIS900_Debug_Str_GetMac_Address |
731 | call sys_msg_board_str |
||
732 | mov edx, node_addr |
||
733 | call Create_Mac_String |
||
261 | hidnplayr | 734 | end if |
2434 | Serge | 735 | ret |
261 | hidnplayr | 736 | |
737 | SIS900_Bad_Eeprom: |
||
2434 | Serge | 738 | xor eax, eax |
261 | hidnplayr | 739 | ;*******Debug ********************** |
740 | if defined SIS900_DEBUG |
||
2434 | Serge | 741 | mov esi, SIS900_Debug_Str_GetMac_Failed |
742 | call sys_msg_board_str |
||
261 | hidnplayr | 743 | end if |
2434 | Serge | 744 | ret |
261 | hidnplayr | 745 | ;*************************************************************************** |
746 | ;* Get_Mac_SIS635_900_REV: - Get MAC address for model 635 |
||
747 | ;* |
||
748 | ;* |
||
749 | ;*************************************************************************** |
||
750 | Get_Mac_SIS635_900_REV: |
||
751 | if defined SIS900_DEBUG |
||
2434 | Serge | 752 | mov esi, SIS900_Debug_Str_GetMac_Start |
753 | call sys_msg_board_str |
||
261 | hidnplayr | 754 | end if |
2434 | Serge | 755 | mov ebp, [io_addr] |
756 | lea edx, [ebp+SIS900_rfcr] |
||
757 | in eax, dx |
||
758 | mov edi, eax; EDI=rfcrSave |
||
759 | lea edx, [ebp+SIS900_cr] |
||
760 | or eax, SIS900_RELOAD |
||
761 | out dx, eax |
||
762 | xor eax, eax |
||
763 | out dx, eax |
||
261 | hidnplayr | 764 | ; Disable packet filtering before setting filter |
2434 | Serge | 765 | lea edx, [ebp+SIS900_rfcr] |
766 | mov eax, edi |
||
767 | and edi, not SIS900_RFEN |
||
768 | out dx, eax |
||
261 | hidnplayr | 769 | ; Load MAC to filter data register |
2434 | Serge | 770 | xor ecx, ecx |
771 | mov esi, node_addr |
||
261 | hidnplayr | 772 | .get_mac_loop: |
2434 | Serge | 773 | lea edx, [ebp+SIS900_rfcr] |
774 | mov eax, ecx |
||
775 | shl eax, SIS900_RFADDR_shift |
||
776 | out dx, eax |
||
777 | lea edx, [ebp+SIS900_rfdr] |
||
778 | in eax, dx |
||
779 | mov [esi], ax |
||
780 | add esi, 2 |
||
781 | inc ecx |
||
782 | cmp ecx, 3 |
||
783 | jne .get_mac_loop |
||
261 | hidnplayr | 784 | ; Enable packet filtering |
785 | ;lea edx,[ebp+SIS900_rfcr] |
||
786 | ;mov eax,edi |
||
787 | ;or eax,SIS900_RFEN |
||
788 | ;out dx, eax |
||
789 | ;*******Debug Print MAC ID to debug window********************** |
||
790 | if defined SIS900_DEBUG |
||
2434 | Serge | 791 | mov esi, SIS900_Debug_Str_GetMac_Address |
792 | call sys_msg_board_str |
||
793 | mov edx, node_addr |
||
794 | call Create_Mac_String |
||
261 | hidnplayr | 795 | end if |
2434 | Serge | 796 | ret |
261 | hidnplayr | 797 | ;*************************************************************************** |
798 | ;* Function: sis900_read_eeprom |
||
799 | ;* |
||
800 | ;* Description: reads and returns a given location from EEPROM |
||
801 | ;* |
||
802 | ;* Arguments: eax - location: requested EEPROM location |
||
803 | ;* |
||
804 | ;* Returns: eax : contents of requested EEPROM location |
||
805 | ;* |
||
806 | ; Read Serial EEPROM through EEPROM Access Register, Note that location is |
||
807 | ; in word (16 bits) unit */ |
||
808 | ;done+ |
||
809 | ;*************************************************************************** |
||
810 | sis900_read_eeprom: |
||
2434 | Serge | 811 | push esi |
812 | push edx |
||
813 | push ecx |
||
814 | push ebx |
||
815 | mov ebp, [io_addr] |
||
816 | mov ebx, eax ;location of Mac byte to read |
||
817 | or ebx, SIS900_EEread ; |
||
818 | lea edx, [ebp+SIS900_mear]; Eeprom access register |
||
819 | xor eax, eax ; start send |
||
820 | out dx, eax |
||
821 | call SIS900_Eeprom_Delay_1 |
||
822 | mov eax, SIS900_EECLK |
||
823 | out dx, eax |
||
824 | call SIS900_Eeprom_Delay_1 |
||
261 | hidnplayr | 825 | ;************ Shift the read command (9) bits out. ********* |
2434 | Serge | 826 | mov cl, 8 ; |
261 | hidnplayr | 827 | sis900_read_eeprom_Send: |
2434 | Serge | 828 | mov eax, 1 |
829 | shl eax, cl |
||
830 | and eax, ebx |
||
831 | jz SIS900_Read_Eeprom_8 |
||
832 | mov eax, 9 |
||
833 | jmp SIS900_Read_Eeprom_9 |
||
261 | hidnplayr | 834 | SIS900_Read_Eeprom_8: |
2434 | Serge | 835 | mov eax, 8 |
261 | hidnplayr | 836 | SIS900_Read_Eeprom_9: |
2434 | Serge | 837 | out dx, eax |
838 | call SIS900_Eeprom_Delay_1 |
||
839 | or eax, SIS900_EECLK |
||
840 | out dx, eax |
||
841 | call SIS900_Eeprom_Delay_1 |
||
842 | cmp cl, 0 |
||
843 | je sis900_read_eeprom_Send_Done |
||
844 | dec cl |
||
845 | jmp sis900_read_eeprom_Send |
||
261 | hidnplayr | 846 | ;********************* |
847 | sis900_read_eeprom_Send_Done: |
||
2434 | Serge | 848 | mov eax, SIS900_EECS ; |
849 | out dx, eax |
||
850 | call SIS900_Eeprom_Delay_1 |
||
261 | hidnplayr | 851 | ;********** Read 16-bits of data in *************** |
2434 | Serge | 852 | mov cx, 16 ;16 bits to read |
261 | hidnplayr | 853 | sis900_read_eeprom_Send2: |
2434 | Serge | 854 | mov eax, SIS900_EECS |
855 | out dx, eax |
||
856 | call SIS900_Eeprom_Delay_1 |
||
857 | or eax, SIS900_EECLK |
||
858 | out dx, eax |
||
859 | call SIS900_Eeprom_Delay_1 |
||
860 | in eax, dx |
||
861 | shl ebx, 1 |
||
862 | and eax, SIS900_EEDO |
||
863 | jz SIS900_Read_Eeprom_0 |
||
864 | or ebx, 1 |
||
261 | hidnplayr | 865 | SIS900_Read_Eeprom_0: |
2434 | Serge | 866 | dec cx |
867 | jnz sis900_read_eeprom_Send2 |
||
261 | hidnplayr | 868 | ;************** Terminate the EEPROM access. ************** |
2434 | Serge | 869 | xor eax, eax |
870 | out dx, eax |
||
871 | call SIS900_Eeprom_Delay_1 |
||
872 | mov eax, SIS900_EECLK |
||
873 | out dx, eax |
||
874 | mov eax, ebx |
||
875 | and eax, 0x0000ffff ;return only 16 bits |
||
876 | pop ebx |
||
877 | pop ecx |
||
878 | pop edx |
||
879 | pop esi |
||
880 | ret |
||
261 | hidnplayr | 881 | ;*************************************************************************** |
882 | ; Function |
||
883 | ; SIS900_Eeprom_Delay_1 |
||
884 | ; Description |
||
885 | ; |
||
886 | ; |
||
887 | ; |
||
888 | ; |
||
889 | ;*************************************************************************** |
||
890 | SIS900_Eeprom_Delay_1: |
||
2434 | Serge | 891 | push eax |
892 | in eax, dx |
||
893 | pop eax |
||
894 | ret |
||
261 | hidnplayr | 895 | |
896 | ;*************************************************************************** |
||
897 | ; Function |
||
898 | ; SIS900_poll |
||
899 | ; Description |
||
900 | ; polls card to see if there is a packet waiting |
||
901 | ; |
||
902 | ; Currently only supports one descriptor per packet, if packet is fragmented |
||
903 | ; between multiple descriptors you will lose part of the packet |
||
904 | ;*************************************************************************** |
||
905 | if defined SIS900_DEBUG |
||
906 | SIS900_Debug_Pull_Packet_good db 'Good Packet Waiting: ',13,10,0 |
||
907 | SIS900_Debug_Pull_Bad_Packet_Status db 'Bad Packet Waiting: Status',13,10,0 |
||
908 | SIS900_Debug_Pull_Bad_Packet_Size db 'Bad Packet Waiting: Size',13,10,0 |
||
909 | end if |
||
910 | SIS900_poll: |
||
911 | ;**************Get Status ************** |
||
2434 | Serge | 912 | xor eax, eax ;get RX_Status |
913 | mov [eth_rx_data_len], ax |
||
914 | mov al, [cur_rx] ;find current discriptor |
||
915 | imul eax, 12 ; |
||
916 | mov ecx, [rxd+eax+4] ; get receive status |
||
261 | hidnplayr | 917 | ;**************Check Status ************** |
2434 | Serge | 918 | mov ebx, ecx ;move status |
261 | hidnplayr | 919 | ;Check RX_Status to see if packet is waiting |
2434 | Serge | 920 | and ebx, 0x80000000 |
921 | jnz SIS900_poll_IS_packet |
||
922 | ret |
||
261 | hidnplayr | 923 | ;**********There is a packet waiting check it for errors************** |
924 | SIS900_poll_IS_packet: |
||
2434 | Serge | 925 | mov ebx, ecx ;move status |
926 | and ebx, 0x67C0000 ;see if there are any errors |
||
927 | jnz SIS900_Poll_Error_Status |
||
261 | hidnplayr | 928 | ;**************Check size of packet************* |
2434 | Serge | 929 | and ecx, SIS900_DSIZE ;get packet size minus CRC |
930 | cmp cx, SIS900_CRC_SIZE |
||
261 | hidnplayr | 931 | ;make sure packet contains data |
2434 | Serge | 932 | jle SIS900_Poll_Error_Size |
261 | hidnplayr | 933 | ;*******Copy Good Packet to receive buffer****** |
2434 | Serge | 934 | sub cx, SIS900_CRC_SIZE ;dont want crc |
935 | mov word [eth_rx_data_len], cx ;save size of packet |
||
261 | hidnplayr | 936 | ;**********Continue copying packet**************** |
2434 | Serge | 937 | push ecx |
261 | hidnplayr | 938 | ; first copy dword-wise, divide size by 4 |
2434 | Serge | 939 | shr ecx, 2 |
940 | mov esi, [rxd+eax+8] ; set source |
||
941 | add esi, OS_BASE ; get linear address |
||
942 | mov edi, Ether_buffer ; set destination |
||
943 | cld ; clear direction |
||
944 | rep movsd ; copy the dwords |
||
945 | pop ecx |
||
946 | and ecx, 3 ; |
||
947 | rep movsb |
||
261 | hidnplayr | 948 | ;********Debug, tell user we have a good packet************* |
949 | if defined SIS900_DEBUG |
||
2434 | Serge | 950 | mov esi, SIS900_Debug_Pull_Packet_good |
951 | call sys_msg_board_str |
||
261 | hidnplayr | 952 | end if |
2434 | Serge | 953 | jmp SIS900_Poll_Cnt ; |
261 | hidnplayr | 954 | ;*************Error occured let user know through debug window*********** |
955 | SIS900_Poll_Error_Status: |
||
956 | if defined SIS900_DEBUG |
||
2434 | Serge | 957 | mov esi, SIS900_Debug_Pull_Bad_Packet_Status |
958 | call sys_msg_board_str |
||
261 | hidnplayr | 959 | end if |
2434 | Serge | 960 | jmp SIS900_Poll_Cnt |
261 | hidnplayr | 961 | SIS900_Poll_Error_Size: |
962 | if defined SIS900_DEBUG |
||
2434 | Serge | 963 | mov esi, SIS900_Debug_Pull_Bad_Packet_Size |
964 | call sys_msg_board_str |
||
261 | hidnplayr | 965 | end if |
966 | ;*************Increment to next available descriptor************** |
||
967 | SIS900_Poll_Cnt: |
||
968 | ;Reset status, allow ethernet card access to descriptor |
||
2434 | Serge | 969 | mov ecx, RX_BUFF_SZ |
970 | mov [rxd+eax+4], ecx ; |
||
971 | inc [cur_rx] ;get next descriptor |
||
972 | and [cur_rx], 3 ;only 4 descriptors 0-3 |
||
261 | hidnplayr | 973 | ;******Enable Receiver************ |
2434 | Serge | 974 | mov ebp, [io_addr] ; Base Address |
975 | lea edx, [ebp+SIS900_cr]; Command Register offset |
||
976 | in eax, dx ; Get current Command Register |
||
977 | or eax, SIS900_RxENA;Enable Receive |
||
978 | out dx, eax |
||
979 | ret |
||
261 | hidnplayr | 980 | ;*************************************************************************** |
981 | ; Function |
||
982 | ; SIS900_transmit |
||
983 | ; Description |
||
984 | ; Transmits a packet of data via the ethernet card |
||
985 | ; Pointer to 48 bit destination address in edi |
||
986 | ; Type of packet in bx |
||
987 | ; size of packet in ecx |
||
988 | ; pointer to packet data in esi |
||
989 | ; |
||
990 | ; only one transmit descriptor is used |
||
991 | ; |
||
992 | ;*************************************************************************** |
||
993 | if defined SIS900_DEBUG |
||
994 | SIS900_Debug_Transmit_Packet db 'Transmitting Packet: ',13,10,0 |
||
995 | SIS900_Debug_Transmit_Packet_Err db 'Transmitting Packet Error: ',13,10,0 |
||
996 | end if |
||
735 | diamond | 997 | str1 db 'Transmitting packet:',13,10,0 |
998 | str2 db ' ',0 |
||
261 | hidnplayr | 999 | SIS900_transmit: |
2434 | Serge | 1000 | mov ebp, [io_addr] ; Base Address |
261 | hidnplayr | 1001 | ;******** Stop the transmitter ******** |
2434 | Serge | 1002 | lea edx, [ebp+SIS900_cr]; Command Register offset |
1003 | in eax, dx ; Get current Command Register |
||
1004 | or eax, SIS900_TxDIS; Disable Transmitter |
||
1005 | out dx, eax |
||
261 | hidnplayr | 1006 | ;*******load Transmit Descriptor Register ******* |
2434 | Serge | 1007 | lea edx, [ebp+SIS900_txdp] |
1008 | mov eax, txd - OS_BASE |
||
1009 | out dx, eax |
||
261 | hidnplayr | 1010 | ;******* copy packet to descriptor******* |
2434 | Serge | 1011 | push esi |
1012 | mov esi, edi ;copy destination addess |
||
1013 | mov edi, txb |
||
1014 | cld |
||
1015 | movsd |
||
1016 | movsw |
||
1017 | mov esi, node_addr;copy my mac address |
||
1018 | movsd |
||
1019 | movsw |
||
1020 | mov [edi], bx ;copy packet type |
||
1021 | add edi, 2 |
||
1022 | pop esi ;restore pointer to source of packet |
||
1023 | push ecx ;save packet size |
||
1024 | shr ecx, 2 ;divide by 4, size in bytes send in dwords |
||
1025 | rep movsd ;copy data to decriptor |
||
1026 | pop ecx ;restore packet size |
||
1027 | push ecx ;save packet size |
||
1028 | and ecx, 3 ;last three bytes if not a multiple of 4 |
||
1029 | rep movsb |
||
261 | hidnplayr | 1030 | ;**************set length tag************** |
2434 | Serge | 1031 | pop ecx ;restore packet size |
1032 | add ecx, SIS900_ETH_HLEN;add header to length |
||
1033 | and ecx, SIS900_DSIZE; |
||
261 | hidnplayr | 1034 | ;**************pad to minimum packet size **************not needed |
1035 | ;cmp ecx, SIS900_ETH_ZLEN |
||
1036 | ;jge SIS900_transmit_Size_Ok |
||
1037 | ;push ecx |
||
1038 | ;mov ebx, SIS900_ETH_ZLEN |
||
1039 | ;sub ebx, ecx |
||
1040 | ;mov ecx, ebx |
||
1041 | ;rep movsb |
||
1042 | ;pop ecx |
||
1043 | SIS900_transmit_Size_Ok: |
||
2434 | Serge | 1044 | mov [txd+4], dword 0x80000000 ;card owns descriptor |
1045 | or [txd+4], ecx ;set size of packet |
||
261 | hidnplayr | 1046 | if defined SIS900_DEBUG |
2434 | Serge | 1047 | mov esi, SIS900_Debug_Transmit_Packet |
1048 | call sys_msg_board_str |
||
261 | hidnplayr | 1049 | end if |
1050 | ;***************restart the transmitter ******** |
||
2434 | Serge | 1051 | lea edx, [ebp+SIS900_cr] |
1052 | in eax, dx ; Get current Command Register |
||
1053 | or eax, SIS900_TxENA; Enable Transmitter |
||
1054 | out dx, eax |
||
261 | hidnplayr | 1055 | ;****make sure packet transmitted successfully**** |
1056 | ; mov esi,10 |
||
1057 | ; call delay_ms |
||
2434 | Serge | 1058 | mov eax, [txd+4] |
1059 | and eax, 0x6200000 |
||
1060 | jz SIS900_transmit_OK |
||
261 | hidnplayr | 1061 | ;**************Tell user there was an error through debug window |
1062 | if defined SIS900_DEBUG |
||
2434 | Serge | 1063 | mov esi, SIS900_Debug_Transmit_Packet_Err |
1064 | call sys_msg_board_str |
||
261 | hidnplayr | 1065 | end if |
1066 | SIS900_transmit_OK: |
||
1067 | ;******** Disable interrupts by clearing the interrupt mask. ******** |
||
2434 | Serge | 1068 | lea edx, [ebp+SIS900_imr] ; Interupt Mask Register |
1069 | xor eax, eax |
||
1070 | out dx, eax |
||
1071 | ret |
||
261 | hidnplayr | 1072 | |
1073 | ;*************************************************************************** |
||
1074 | ;* Function: Create_Mac_String |
||
1075 | ;* |
||
1076 | ;* Description: Converts the 48 bit value to a string for display |
||
1077 | ;* |
||
1078 | ;* String Format: XX:XX:XX:XX:XX:XX |
||
1079 | ;* |
||
1080 | ;* Arguments: node_addr is location of 48 bit MAC ID |
||
1081 | ;* |
||
1082 | ;* Returns: Prints string to general debug window |
||
1083 | ;* |
||
1084 | ;* |
||
1085 | ;done |
||
1086 | ;*************************************************************************** |
||
1087 | if defined SIS900_DEBUG |
||
1088 | |||
1089 | SIS900_Char_String db '0','1','2','3','4','5','6','7','8','9' |
||
1090 | db 'A','B','C','D','E','F' |
||
2434 | Serge | 1091 | Mac_str_build: |
1092 | times 20 db 0 |
||
261 | hidnplayr | 1093 | Create_Mac_String: |
2434 | Serge | 1094 | pusha |
1095 | xor ecx, ecx |
||
261 | hidnplayr | 1096 | Create_Mac_String_loop: |
2434 | Serge | 1097 | mov al, byte [edx+ecx];[node_addr+ecx] |
1098 | push eax |
||
1099 | shr eax, 4 |
||
1100 | and eax, 0x0f |
||
1101 | mov bl, byte [SIS900_Char_String+eax] |
||
1102 | mov [Mac_str_build+ecx*3], bl |
||
1103 | pop eax |
||
1104 | and eax, 0x0f |
||
1105 | mov bl, byte [SIS900_Char_String+eax] |
||
1106 | mov [Mac_str_build+1+ecx*3], bl |
||
1107 | cmp ecx, 5 |
||
1108 | je Create_Mac_String_done |
||
1109 | mov bl, ':' |
||
1110 | mov [Mac_str_build+2+ecx*3], bl |
||
1111 | inc ecx |
||
1112 | jmp Create_Mac_String_loop |
||
261 | hidnplayr | 1113 | Create_Mac_String_done: ;Insert CR and Zero Terminate |
2434 | Serge | 1114 | mov [Mac_str_build+2+ecx*3], byte 13 |
1115 | mov [Mac_str_build+3+ecx*3], byte 10 |
||
1116 | mov [Mac_str_build+4+ecx*3], byte 0 |
||
1117 | mov esi, Mac_str_build |
||
1118 | call sys_msg_board_str ;Print String to message board |
||
1119 | popa |
||
1120 | ret |
||
261 | hidnplayr | 1121 | end if |
1122 | ;*************************************************************************** |
||
1123 | ;* Set device to be a busmaster in case BIOS neglected to do so. |
||
1124 | ;* Also adjust PCI latency timer to a reasonable value, 64. |
||
1125 | ;*************************************************************************** |
||
1126 | SIS900_adjust_pci_device: |
||
1127 | ;*******Get current setting************************ |
||
2434 | Serge | 1128 | mov al, 2 ;read a word |
1129 | mov bh, [pci_dev] |
||
1130 | mov ah, [pci_bus] |
||
1131 | mov bl, 0x04 ;from command Register |
||
1132 | call pci_read_reg |
||
261 | hidnplayr | 1133 | ;******see if its already set as bus master******** |
2434 | Serge | 1134 | mov bx, ax |
1135 | and bx, 5 |
||
1136 | cmp bx, 5 |
||
1137 | je SIS900_adjust_pci_device_Latency |
||
261 | hidnplayr | 1138 | ;******Make card a bus master******* |
2434 | Serge | 1139 | mov cx, ax ;value to write |
1140 | mov bh, [pci_dev] |
||
1141 | mov al, 2 ;write a word |
||
1142 | or cx, 5 |
||
1143 | mov ah, [pci_bus] |
||
1144 | mov bl, 0x04 ;to command register |
||
1145 | call pci_write_reg |
||
261 | hidnplayr | 1146 | ;******Check latency setting*********** |
1147 | SIS900_adjust_pci_device_Latency: |
||
1148 | ;*******Get current latency setting************************ |
||
2434 | Serge | 1149 | mov al, 1 ;read a byte |
1150 | mov bh, [pci_dev] |
||
1151 | mov ah, [pci_bus] |
||
1152 | mov bl, 0x0D ;from Lantency Timer Register |
||
1153 | call pci_read_reg |
||
261 | hidnplayr | 1154 | ;******see if its aat least 64 clocks******** |
2434 | Serge | 1155 | cmp ax, 64 |
1156 | jge SIS900_adjust_pci_device_Done |
||
261 | hidnplayr | 1157 | ;******Set latency to 32 clocks******* |
2434 | Serge | 1158 | mov cx, 64 ;value to write |
1159 | mov bh, [pci_dev] |
||
1160 | mov al, 1 ;write a byte |
||
1161 | mov ah, [pci_bus] |
||
1162 | mov bl, 0x0D ;to Lantency Timer Register |
||
1163 | call pci_write_reg |
||
261 | hidnplayr | 1164 | ;******Check latency setting*********** |
1165 | SIS900_adjust_pci_device_Done: |
||
2434 | Serge | 1166 | ret64bytes) |