2 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21 * Purpose:Implement functions to access eeprom
28 * SROMbyReadEmbedded - Embedded read eeprom via MAC
29 * SROMbWriteEmbedded - Embedded write eeprom via MAC
30 * SROMvRegBitsOn - Set Bits On in eeprom
31 * SROMvRegBitsOff - Clear Bits Off in eeprom
32 * SROMbIsRegBitsOn - Test if Bits On in eeprom
33 * SROMbIsRegBitsOff - Test if Bits Off in eeprom
34 * SROMvReadAllContents - Read all contents in eeprom
35 * SROMvWriteAllContents - Write all contents in eeprom
36 * SROMvReadEtherAddress - Read Ethernet Address in eeprom
37 * SROMvWriteEtherAddress - Write Ethernet Address in eeprom
38 * SROMvReadSubSysVenId - Read Sub_VID and Sub_SysId in eeprom
39 * SROMbAutoLoad - Auto Load eeprom to MAC register
51 /*--------------------- Static Definitions -------------------------*/
53 /*--------------------- Static Classes ----------------------------*/
55 /*--------------------- Static Variables --------------------------*/
57 /*--------------------- Static Functions --------------------------*/
59 /*--------------------- Export Variables --------------------------*/
61 /*--------------------- Export Functions --------------------------*/
67 * Description: Read a byte from EEPROM, by MAC I2C
71 * dwIoBase - I/O base address
72 * byContntOffset - address of EEPROM
76 * Return Value: data read
79 BYTE SROMbyReadEmbedded(DWORD_PTR dwIoBase, BYTE byContntOffset)
87 VNSvInPortB(dwIoBase + MAC_REG_I2MCFG, &byOrg);
88 // turn off hardware retry for getting NACK
89 VNSvOutPortB(dwIoBase + MAC_REG_I2MCFG, (byOrg & (~I2MCFG_NORETRY)));
90 for (wNoACK = 0; wNoACK < W_MAX_I2CRETRY; wNoACK++) {
91 VNSvOutPortB(dwIoBase + MAC_REG_I2MTGID, EEP_I2C_DEV_ID);
92 VNSvOutPortB(dwIoBase + MAC_REG_I2MTGAD, byContntOffset);
95 VNSvOutPortB(dwIoBase + MAC_REG_I2MCSR, I2MCSR_EEMR);
97 for (wDelay = 0; wDelay < W_MAX_TIMEOUT; wDelay++) {
98 VNSvInPortB(dwIoBase + MAC_REG_I2MCSR, &byWait);
99 if (byWait & (I2MCSR_DONE | I2MCSR_NACK))
101 PCAvDelayByIO(CB_DELAY_LOOP_WAIT);
103 if ((wDelay < W_MAX_TIMEOUT) &&
104 ( !(byWait & I2MCSR_NACK))) {
108 VNSvInPortB(dwIoBase + MAC_REG_I2MDIPT, &byData);
109 VNSvOutPortB(dwIoBase + MAC_REG_I2MCFG, byOrg);
115 * Description: Write a byte to EEPROM, by MAC I2C
119 * dwIoBase - I/O base address
120 * byContntOffset - address of EEPROM
121 * wData - data to write
125 * Return Value: TRUE if succeeded; FALSE if failed.
128 BOOL SROMbWriteEmbedded (DWORD_PTR dwIoBase, BYTE byContntOffset, BYTE byData)
135 VNSvInPortB(dwIoBase + MAC_REG_I2MCFG, &byOrg);
136 // turn off hardware retry for getting NACK
137 VNSvOutPortB(dwIoBase + MAC_REG_I2MCFG, (byOrg & (~I2MCFG_NORETRY)));
138 for (wNoACK = 0; wNoACK < W_MAX_I2CRETRY; wNoACK++) {
139 VNSvOutPortB(dwIoBase + MAC_REG_I2MTGID, EEP_I2C_DEV_ID);
140 VNSvOutPortB(dwIoBase + MAC_REG_I2MTGAD, byContntOffset);
141 VNSvOutPortB(dwIoBase + MAC_REG_I2MDOPT, byData);
143 // issue write command
144 VNSvOutPortB(dwIoBase + MAC_REG_I2MCSR, I2MCSR_EEMW);
146 for (wDelay = 0; wDelay < W_MAX_TIMEOUT; wDelay++) {
147 VNSvInPortB(dwIoBase + MAC_REG_I2MCSR, &byWait);
148 if (byWait & (I2MCSR_DONE | I2MCSR_NACK))
150 PCAvDelayByIO(CB_DELAY_LOOP_WAIT);
153 if ((wDelay < W_MAX_TIMEOUT) &&
154 ( !(byWait & I2MCSR_NACK))) {
158 if (wNoACK == W_MAX_I2CRETRY) {
159 VNSvOutPortB(dwIoBase + MAC_REG_I2MCFG, byOrg);
162 VNSvOutPortB(dwIoBase + MAC_REG_I2MCFG, byOrg);
168 * Description: Turn bits on in eeprom
172 * dwIoBase - I/O base address
173 * byContntOffset - address of EEPROM
174 * byBits - bits to turn on
181 void SROMvRegBitsOn (DWORD_PTR dwIoBase, BYTE byContntOffset, BYTE byBits)
185 byOrgData = SROMbyReadEmbedded(dwIoBase, byContntOffset);
186 SROMbWriteEmbedded(dwIoBase, byContntOffset,(BYTE)(byOrgData | byBits));
191 * Description: Turn bits off in eeprom
195 * dwIoBase - I/O base address
196 * byContntOffset - address of EEPROM
197 * byBits - bits to turn off
202 void SROMvRegBitsOff (DWORD_PTR dwIoBase, BYTE byContntOffset, BYTE byBits)
206 byOrgData = SROMbyReadEmbedded(dwIoBase, byContntOffset);
207 SROMbWriteEmbedded(dwIoBase, byContntOffset,(BYTE)(byOrgData & (~byBits)));
212 * Description: Test if bits on in eeprom
216 * dwIoBase - I/O base address
217 * byContntOffset - address of EEPROM
218 * byTestBits - bits to test
222 * Return Value: TRUE if all test bits on; otherwise FALSE
225 BOOL SROMbIsRegBitsOn (DWORD_PTR dwIoBase, BYTE byContntOffset, BYTE byTestBits)
229 byOrgData = SROMbyReadEmbedded(dwIoBase, byContntOffset);
230 return (byOrgData & byTestBits) == byTestBits;
235 * Description: Test if bits off in eeprom
239 * dwIoBase - I/O base address
240 * byContntOffset - address of EEPROM
241 * byTestBits - bits to test
245 * Return Value: TRUE if all test bits off; otherwise FALSE
248 BOOL SROMbIsRegBitsOff (DWORD_PTR dwIoBase, BYTE byContntOffset, BYTE byTestBits)
252 byOrgData = SROMbyReadEmbedded(dwIoBase, byContntOffset);
253 return !(byOrgData & byTestBits);
258 * Description: Read all contents of eeprom to buffer
262 * dwIoBase - I/O base address
264 * pbyEepromRegs - EEPROM content Buffer
269 void SROMvReadAllContents (DWORD_PTR dwIoBase, PBYTE pbyEepromRegs)
274 for (ii = 0; ii < EEP_MAX_CONTEXT_SIZE; ii++) {
275 *pbyEepromRegs = SROMbyReadEmbedded(dwIoBase,(BYTE) ii);
282 * Description: Write all contents of buffer to eeprom
286 * dwIoBase - I/O base address
287 * pbyEepromRegs - EEPROM content Buffer
294 void SROMvWriteAllContents (DWORD_PTR dwIoBase, PBYTE pbyEepromRegs)
299 for (ii = 0; ii < EEP_MAX_CONTEXT_SIZE; ii++) {
300 SROMbWriteEmbedded(dwIoBase,(BYTE) ii, *pbyEepromRegs);
307 * Description: Read Ethernet Address from eeprom to buffer
311 * dwIoBase - I/O base address
313 * pbyEtherAddress - Ethernet Address buffer
318 void SROMvReadEtherAddress (DWORD_PTR dwIoBase, PBYTE pbyEtherAddress)
323 for (ii = 0; ii < U_ETHER_ADDR_LEN; ii++) {
324 *pbyEtherAddress = SROMbyReadEmbedded(dwIoBase, ii);
331 * Description: Write Ethernet Address from buffer to eeprom
335 * dwIoBase - I/O base address
336 * pbyEtherAddress - Ethernet Address buffer
343 void SROMvWriteEtherAddress (DWORD_PTR dwIoBase, PBYTE pbyEtherAddress)
348 for (ii = 0; ii < U_ETHER_ADDR_LEN; ii++) {
349 SROMbWriteEmbedded(dwIoBase, ii, *pbyEtherAddress);
356 * Description: Read Sub_VID and Sub_SysId from eeprom to buffer
360 * dwIoBase - I/O base address
362 * pdwSubSysVenId - Sub_VID and Sub_SysId read
367 void SROMvReadSubSysVenId (DWORD_PTR dwIoBase, PDWORD pdwSubSysVenId)
371 pbyData = (PBYTE)pdwSubSysVenId;
373 *pbyData = SROMbyReadEmbedded(dwIoBase, 6);
374 *(pbyData+1) = SROMbyReadEmbedded(dwIoBase, 7);
376 *(pbyData+2) = SROMbyReadEmbedded(dwIoBase, 8);
377 *(pbyData+3) = SROMbyReadEmbedded(dwIoBase, 9);
381 * Description: Auto Load EEPROM to MAC register
385 * dwIoBase - I/O base address
389 * Return Value: TRUE if success; otherwise FALSE
392 BOOL SROMbAutoLoad (DWORD_PTR dwIoBase)
399 VNSvInPortB(dwIoBase + MAC_REG_I2MCFG, &byOrg);
400 // turn on hardware retry
401 VNSvOutPortB(dwIoBase + MAC_REG_I2MCFG, (byOrg | I2MCFG_NORETRY));
403 MACvRegBitsOn(dwIoBase, MAC_REG_I2MCSR, I2MCSR_AUTOLD);
406 for (ii = 0; ii < EEP_MAX_CONTEXT_SIZE; ii++) {
407 MACvTimer0MicroSDelay(dwIoBase, CB_EEPROM_READBYTE_WAIT);
408 VNSvInPortB(dwIoBase + MAC_REG_I2MCSR, &byWait);
409 if ( !(byWait & I2MCSR_AUTOLD))
413 VNSvOutPortB(dwIoBase + MAC_REG_I2MCFG, byOrg);
415 if (ii == EEP_MAX_CONTEXT_SIZE)