--- /dev/null
+/******************************************************************************/
+/* */
+/* Broadcom BCM5700 Linux Network Driver, Copyright (c) 2000 - 2004 Broadcom */
+/* Corporation. */
+/* All rights reserved. */
+/* */
+/* This program is free software; you can redistribute it and/or modify */
+/* it under the terms of the GNU General Public License as published by */
+/* the Free Software Foundation, located in the file LICENSE. */
+/* */
+/* History: */
+/******************************************************************************/
+
+#ifdef INCLUDE_TBI_SUPPORT
+#include "mm.h"
+
+
+
+/******************************************************************************/
+/* Description: */
+/* */
+/* Return: */
+/******************************************************************************/
+void
+MM_AnTxConfig(
+ PAN_STATE_INFO pAnInfo)
+{
+ PLM_DEVICE_BLOCK pDevice;
+
+ pDevice = (PLM_DEVICE_BLOCK) pAnInfo->pContext;
+
+ REG_WR(pDevice, MacCtrl.TxAutoNeg, (LM_UINT32) pAnInfo->TxConfig.AsUSHORT);
+
+ pDevice->MacMode |= MAC_MODE_SEND_CONFIGS;
+ REG_WR(pDevice, MacCtrl.Mode, pDevice->MacMode);
+}
+
+
+
+/******************************************************************************/
+/* Description: */
+/* */
+/* Return: */
+/******************************************************************************/
+void
+MM_AnTxIdle(
+ PAN_STATE_INFO pAnInfo)
+{
+ PLM_DEVICE_BLOCK pDevice;
+
+ pDevice = (PLM_DEVICE_BLOCK) pAnInfo->pContext;
+
+ pDevice->MacMode &= ~MAC_MODE_SEND_CONFIGS;
+ REG_WR(pDevice, MacCtrl.Mode, pDevice->MacMode);
+}
+
+
+
+/******************************************************************************/
+/* Description: */
+/* */
+/* Return: */
+/******************************************************************************/
+char
+MM_AnRxConfig(
+ PAN_STATE_INFO pAnInfo,
+ unsigned short *pRxConfig)
+{
+ PLM_DEVICE_BLOCK pDevice;
+ LM_UINT32 Value32;
+ char Retcode;
+
+ Retcode = AN_FALSE;
+
+ pDevice = (PLM_DEVICE_BLOCK) pAnInfo->pContext;
+
+ Value32 = REG_RD(pDevice, MacCtrl.Status);
+ if(Value32 & MAC_STATUS_RECEIVING_CFG)
+ {
+ Value32 = REG_RD(pDevice, MacCtrl.RxAutoNeg);
+ *pRxConfig = (unsigned short) Value32;
+
+ Retcode = AN_TRUE;
+ }
+
+ return Retcode;
+}
+
+
+
+/******************************************************************************/
+/* Description: */
+/* */
+/* Return: */
+/******************************************************************************/
+void
+AutonegInit(
+ PAN_STATE_INFO pAnInfo)
+{
+ unsigned long j;
+
+ for(j = 0; j < sizeof(AN_STATE_INFO); j++)
+ {
+ ((unsigned char *) pAnInfo)[j] = 0;
+ }
+
+ /* Initialize the default advertisement register. */
+ pAnInfo->mr_adv_full_duplex = 1;
+ pAnInfo->mr_adv_sym_pause = 1;
+ pAnInfo->mr_adv_asym_pause = 1;
+ pAnInfo->mr_an_enable = 1;
+}
+
+
+
+/******************************************************************************/
+/* Description: */
+/* */
+/* Return: */
+/******************************************************************************/
+AUTONEG_STATUS
+Autoneg8023z(
+ PAN_STATE_INFO pAnInfo)
+{
+ unsigned short RxConfig;
+ unsigned long Delta_us;
+ AUTONEG_STATUS AnRet;
+
+ /* Get the current time. */
+ if(pAnInfo->State == AN_STATE_UNKNOWN)
+ {
+ pAnInfo->RxConfig.AsUSHORT = 0;
+ pAnInfo->CurrentTime_us = 0;
+ pAnInfo->LinkTime_us = 0;
+ pAnInfo->AbilityMatchCfg = 0;
+ pAnInfo->AbilityMatchCnt = 0;
+ pAnInfo->AbilityMatch = AN_FALSE;
+ pAnInfo->IdleMatch = AN_FALSE;
+ pAnInfo->AckMatch = AN_FALSE;
+ }
+
+ /* Increment the timer tick. This function is called every microsecon. */
+// pAnInfo->CurrentTime_us++;
+
+ /* Set the AbilityMatch, IdleMatch, and AckMatch flags if their */
+ /* corresponding conditions are satisfied. */
+ if(MM_AnRxConfig(pAnInfo, &RxConfig))
+ {
+ if(RxConfig != pAnInfo->AbilityMatchCfg)
+ {
+ pAnInfo->AbilityMatchCfg = RxConfig;
+ pAnInfo->AbilityMatch = AN_FALSE;
+ pAnInfo->AbilityMatchCnt = 0;
+ }
+ else
+ {
+ pAnInfo->AbilityMatchCnt++;
+ if(pAnInfo->AbilityMatchCnt > 1)
+ {
+ pAnInfo->AbilityMatch = AN_TRUE;
+ pAnInfo->AbilityMatchCfg = RxConfig;
+ }
+ }
+
+ if(RxConfig & AN_CONFIG_ACK)
+ {
+ pAnInfo->AckMatch = AN_TRUE;
+ }
+ else
+ {
+ pAnInfo->AckMatch = AN_FALSE;
+ }
+
+ pAnInfo->IdleMatch = AN_FALSE;
+ }
+ else
+ {
+ pAnInfo->IdleMatch = AN_TRUE;
+
+ pAnInfo->AbilityMatchCfg = 0;
+ pAnInfo->AbilityMatchCnt = 0;
+ pAnInfo->AbilityMatch = AN_FALSE;
+ pAnInfo->AckMatch = AN_FALSE;
+
+ RxConfig = 0;
+ }
+
+ /* Save the last Config. */
+ pAnInfo->RxConfig.AsUSHORT = RxConfig;
+
+ /* Default return code. */
+ AnRet = AUTONEG_STATUS_OK;
+
+ /* Autoneg state machine as defined in 802.3z section 37.3.1.5. */
+ switch(pAnInfo->State)
+ {
+ case AN_STATE_UNKNOWN:
+ if(pAnInfo->mr_an_enable || pAnInfo->mr_restart_an)
+ {
+ pAnInfo->CurrentTime_us = 0;
+ pAnInfo->State = AN_STATE_AN_ENABLE;
+ }
+
+ /* Fall through.*/
+
+ case AN_STATE_AN_ENABLE:
+ pAnInfo->mr_an_complete = AN_FALSE;
+ pAnInfo->mr_page_rx = AN_FALSE;
+
+ if(pAnInfo->mr_an_enable)
+ {
+ pAnInfo->LinkTime_us = 0;
+ pAnInfo->AbilityMatchCfg = 0;
+ pAnInfo->AbilityMatchCnt = 0;
+ pAnInfo->AbilityMatch = AN_FALSE;
+ pAnInfo->IdleMatch = AN_FALSE;
+ pAnInfo->AckMatch = AN_FALSE;
+
+ pAnInfo->State = AN_STATE_AN_RESTART_INIT;
+ }
+ else
+ {
+ pAnInfo->State = AN_STATE_DISABLE_LINK_OK;
+ }
+ break;
+
+ case AN_STATE_AN_RESTART_INIT:
+ pAnInfo->LinkTime_us = pAnInfo->CurrentTime_us;
+ pAnInfo->mr_np_loaded = AN_FALSE;
+
+ pAnInfo->TxConfig.AsUSHORT = 0;
+ MM_AnTxConfig(pAnInfo);
+
+ AnRet = AUTONEG_STATUS_TIMER_ENABLED;
+
+ pAnInfo->State = AN_STATE_AN_RESTART;
+
+ /* Fall through.*/
+
+ case AN_STATE_AN_RESTART:
+ /* Get the current time and compute the delta with the saved */
+ /* link timer. */
+ Delta_us = pAnInfo->CurrentTime_us - pAnInfo->LinkTime_us;
+ if(Delta_us > AN_LINK_TIMER_INTERVAL_US)
+ {
+ pAnInfo->State = AN_STATE_ABILITY_DETECT_INIT;
+ }
+ else
+ {
+ AnRet = AUTONEG_STATUS_TIMER_ENABLED;
+ }
+ break;
+
+ case AN_STATE_DISABLE_LINK_OK:
+ AnRet = AUTONEG_STATUS_DONE;
+ break;
+
+ case AN_STATE_ABILITY_DETECT_INIT:
+ /* Note: in the state diagram, this variable is set to */
+ /* mr_adv_ability<12>. Is this right?. */
+ pAnInfo->mr_toggle_tx = AN_FALSE;
+
+ /* Send the config as advertised in the advertisement register. */
+ pAnInfo->TxConfig.AsUSHORT = 0;
+ pAnInfo->TxConfig.D5_FD = pAnInfo->mr_adv_full_duplex;
+ pAnInfo->TxConfig.D6_HD = pAnInfo->mr_adv_half_duplex;
+ pAnInfo->TxConfig.D7_PS1 = pAnInfo->mr_adv_sym_pause;
+ pAnInfo->TxConfig.D8_PS2 = pAnInfo->mr_adv_asym_pause;
+ pAnInfo->TxConfig.D12_RF1 = pAnInfo->mr_adv_remote_fault1;
+ pAnInfo->TxConfig.D13_RF2 = pAnInfo->mr_adv_remote_fault2;
+ pAnInfo->TxConfig.D15_NP = pAnInfo->mr_adv_next_page;
+
+ MM_AnTxConfig(pAnInfo);
+
+ pAnInfo->State = AN_STATE_ABILITY_DETECT;
+
+ break;
+
+ case AN_STATE_ABILITY_DETECT:
+ if(pAnInfo->AbilityMatch == AN_TRUE &&
+ pAnInfo->RxConfig.AsUSHORT != 0)
+ {
+ pAnInfo->State = AN_STATE_ACK_DETECT_INIT;
+ }
+
+ break;
+
+ case AN_STATE_ACK_DETECT_INIT:
+ pAnInfo->TxConfig.D14_ACK = 1;
+ MM_AnTxConfig(pAnInfo);
+
+ pAnInfo->State = AN_STATE_ACK_DETECT;
+
+ /* Fall through. */
+
+ case AN_STATE_ACK_DETECT:
+ if(pAnInfo->AckMatch == AN_TRUE)
+ {
+ if((pAnInfo->RxConfig.AsUSHORT & ~AN_CONFIG_ACK) ==
+ (pAnInfo->AbilityMatchCfg & ~AN_CONFIG_ACK))
+ {
+ pAnInfo->State = AN_STATE_COMPLETE_ACK_INIT;
+ }
+ else
+ {
+ pAnInfo->State = AN_STATE_AN_ENABLE;
+ }
+ }
+ else if(pAnInfo->AbilityMatch == AN_TRUE &&
+ pAnInfo->RxConfig.AsUSHORT == 0)
+ {
+ pAnInfo->State = AN_STATE_AN_ENABLE;
+ }
+
+ break;
+
+ case AN_STATE_COMPLETE_ACK_INIT:
+ /* Make sure invalid bits are not set. */
+ if(pAnInfo->RxConfig.bits.D0 || pAnInfo->RxConfig.bits.D1 ||
+ pAnInfo->RxConfig.bits.D2 || pAnInfo->RxConfig.bits.D3 ||
+ pAnInfo->RxConfig.bits.D4 || pAnInfo->RxConfig.bits.D9 ||
+ pAnInfo->RxConfig.bits.D10 || pAnInfo->RxConfig.bits.D11)
+ {
+ AnRet = AUTONEG_STATUS_FAILED;
+ break;
+ }
+
+ /* Set up the link partner advertisement register. */
+ pAnInfo->mr_lp_adv_full_duplex = pAnInfo->RxConfig.D5_FD;
+ pAnInfo->mr_lp_adv_half_duplex = pAnInfo->RxConfig.D6_HD;
+ pAnInfo->mr_lp_adv_sym_pause = pAnInfo->RxConfig.D7_PS1;
+ pAnInfo->mr_lp_adv_asym_pause = pAnInfo->RxConfig.D8_PS2;
+ pAnInfo->mr_lp_adv_remote_fault1 = pAnInfo->RxConfig.D12_RF1;
+ pAnInfo->mr_lp_adv_remote_fault2 = pAnInfo->RxConfig.D13_RF2;
+ pAnInfo->mr_lp_adv_next_page = pAnInfo->RxConfig.D15_NP;
+
+ pAnInfo->LinkTime_us = pAnInfo->CurrentTime_us;
+
+ pAnInfo->mr_toggle_tx = !pAnInfo->mr_toggle_tx;
+ pAnInfo->mr_toggle_rx = pAnInfo->RxConfig.bits.D11;
+ pAnInfo->mr_np_rx = pAnInfo->RxConfig.D15_NP;
+ pAnInfo->mr_page_rx = AN_TRUE;
+
+ pAnInfo->State = AN_STATE_COMPLETE_ACK;
+ AnRet = AUTONEG_STATUS_TIMER_ENABLED;
+
+ break;
+
+ case AN_STATE_COMPLETE_ACK:
+ if(pAnInfo->AbilityMatch == AN_TRUE &&
+ pAnInfo->RxConfig.AsUSHORT == 0)
+ {
+ pAnInfo->State = AN_STATE_AN_ENABLE;
+ break;
+ }
+
+ Delta_us = pAnInfo->CurrentTime_us - pAnInfo->LinkTime_us;
+
+ if(Delta_us > AN_LINK_TIMER_INTERVAL_US)
+ {
+ if(pAnInfo->mr_adv_next_page == 0 ||
+ pAnInfo->mr_lp_adv_next_page == 0)
+ {
+ pAnInfo->State = AN_STATE_IDLE_DETECT_INIT;
+ }
+ else
+ {
+ if(pAnInfo->TxConfig.bits.D15 == 0 &&
+ pAnInfo->mr_np_rx == 0)
+ {
+ pAnInfo->State = AN_STATE_IDLE_DETECT_INIT;
+ }
+ else
+ {
+ AnRet = AUTONEG_STATUS_FAILED;
+ }
+ }
+ }
+
+ break;
+
+ case AN_STATE_IDLE_DETECT_INIT:
+ pAnInfo->LinkTime_us = pAnInfo->CurrentTime_us;
+
+ MM_AnTxIdle(pAnInfo);
+
+ pAnInfo->State = AN_STATE_IDLE_DETECT;
+
+ AnRet = AUTONEG_STATUS_TIMER_ENABLED;
+
+ break;
+
+ case AN_STATE_IDLE_DETECT:
+ if(pAnInfo->AbilityMatch == AN_TRUE &&
+ pAnInfo->RxConfig.AsUSHORT == 0)
+ {
+ pAnInfo->State = AN_STATE_AN_ENABLE;
+ break;
+ }
+
+ Delta_us = pAnInfo->CurrentTime_us - pAnInfo->LinkTime_us;
+ if(Delta_us > AN_LINK_TIMER_INTERVAL_US)
+ {
+// if(pAnInfo->IdleMatch == AN_TRUE)
+// {
+ pAnInfo->State = AN_STATE_LINK_OK;
+// }
+// else
+// {
+// AnRet = AUTONEG_STATUS_FAILED;
+// break;
+// }
+ }
+
+ break;
+
+ case AN_STATE_LINK_OK:
+ pAnInfo->mr_an_complete = AN_TRUE;
+ pAnInfo->mr_link_ok = AN_TRUE;
+ AnRet = AUTONEG_STATUS_DONE;
+
+ break;
+
+ case AN_STATE_NEXT_PAGE_WAIT_INIT:
+ break;
+
+ case AN_STATE_NEXT_PAGE_WAIT:
+ break;
+
+ default:
+ AnRet = AUTONEG_STATUS_FAILED;
+ break;
+ }
+
+ return AnRet;
+}
+#endif /* INCLUDE_TBI_SUPPORT */
+
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