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implemented safe stack for access exception handler

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This commit is contained in:
Markus Fröschle
2014-01-13 15:13:29 +00:00
parent a97469a53d
commit 9b099d935c
6 changed files with 111 additions and 69 deletions
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3
net/am79c874.c
View File

@@ -93,7 +93,10 @@ int am79c874_init(uint8_t fec_ch, uint8_t phy_addr, uint8_t speed, uint8_t duple
/* Set the default mode (Full duplex, 100 Mbps) */
if (!fec_mii_write(fec_ch, phy_addr, MII_AM79C874_CR, MII_AM79C874_CR_100MB | MII_AM79C874_CR_DPLX))
{
dbg("%s: forced setting 100Mbps/full failed.\r\n", __FUNCTION__);
return 0;
}
}
#ifdef DBG_AM79

9
net/fec.c
View File

@@ -17,6 +17,7 @@
#include "bas_string.h"
#include "bas_printf.h"
#include "util.h"
#include "wait.h"
#include "am79c874.h"
//#include "bcm5222.h"
#include <stdbool.h>
@@ -91,11 +92,12 @@ int fec_mii_write(uint8_t ch, uint8_t phy_addr, uint8_t reg_addr, uint16_t data)
*/
for (timeout = 0; timeout < FEC_MII_TIMEOUT; timeout++)
{
wait(1);
if (MCF_FEC_EIR(ch) & MCF_FEC_EIR_MII)
break;
}
if(timeout == FEC_MII_TIMEOUT)
if (timeout == FEC_MII_TIMEOUT)
return 0;
/*
@@ -156,11 +158,12 @@ int fec_mii_read(uint8_t ch, uint8_t phy_addr, uint8_t reg_addr, uint16_t *data)
*/
for (timeout = 0; timeout < FEC_MII_TIMEOUT; timeout++)
{
wait(1);
if (MCF_FEC_EIR(ch) & MCF_FEC_EIR_MII)
break;
}
if(timeout == FEC_MII_TIMEOUT)
if (timeout == FEC_MII_TIMEOUT)
return 0;
/*
@@ -481,9 +484,7 @@ void fec_init(uint8_t ch, uint8_t mode, const uint8_t *pa)
*/
MCF_FEC_RCR(ch) = 0
| MCF_FEC_RCR_MAX_FL(ETH_MAX_FRM)
//#ifdef FEC_PROMISCUOUS
| MCF_FEC_RCR_PROM
//#endif
| MCF_FEC_RCR_FCE;
if (mode == FEC_MODE_MII)