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Use 64 bit values for MAC timer

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This commit is contained in:
thomas-ha 2016-04-18 11:40:52 +02:00
parent 6262025ef3
commit 3a76207b59
1 changed files with 6 additions and 2 deletions
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8
cpu/cc2538/dev/cc2538-rf.c
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@ -123,7 +123,7 @@ static const uint8_t magic[] = { 0x53, 0x6E, 0x69, 0x66 }; /** Snif */
* MAC timer
*---------------------------------------------------------------------------*/
/* Timer conversion */
#define RADIO_TO_RTIMER(X) ((X) * RTIMER_ARCH_SECOND / SYS_CTRL_32MHZ)
#define RADIO_TO_RTIMER(X) ((uint32_t)((uint64_t)(X) * RTIMER_ARCH_SECOND / SYS_CTRL_32MHZ))
#define CLOCK_STABLE() do { \
while ( !(REG(SYS_CTRL_CLOCK_STA) & (SYS_CTRL_CLOCK_STA_XOSC_STB))); \
@ -1129,7 +1129,7 @@ cc2538_rf_set_promiscous_mode(char p)
/*---------------------------------------------------------------------------*/
uint32_t get_sfd_timestamp(void)
{
uint32_t sfd, timer_val;
uint64_t sfd, timer_val, buffer;
REG(RFCORE_SFR_MTMSEL) = (REG(RFCORE_SFR_MTMSEL) & ~RFCORE_SFR_MTMSEL_MTMSEL) | 0x00000000;
REG(RFCORE_SFR_MTCTRL) |= RFCORE_SFR_MTCTRL_LATCH_MODE;
@ -1138,6 +1138,8 @@ uint32_t get_sfd_timestamp(void)
REG(RFCORE_SFR_MTMSEL) = (REG(RFCORE_SFR_MTMSEL) & ~RFCORE_SFR_MTMSEL_MTMOVFSEL) | 0x00000000;
timer_val |= ((REG(RFCORE_SFR_MTMOVF0) & RFCORE_SFR_MTMOVF0_MTMOVF0) << 16);
timer_val |= ((REG(RFCORE_SFR_MTMOVF1) & RFCORE_SFR_MTMOVF1_MTMOVF1) << 24);
buffer = REG(RFCORE_SFR_MTMOVF2) & RFCORE_SFR_MTMOVF2_MTMOVF2;
timer_val |= (buffer << 32);
REG(RFCORE_SFR_MTMSEL) = (REG(RFCORE_SFR_MTMSEL) & ~RFCORE_SFR_MTMSEL_MTMSEL) | 0x00000001;
REG(RFCORE_SFR_MTCTRL) |= RFCORE_SFR_MTCTRL_LATCH_MODE;
@ -1146,6 +1148,8 @@ uint32_t get_sfd_timestamp(void)
REG(RFCORE_SFR_MTMSEL) = (REG(RFCORE_SFR_MTMSEL) & ~RFCORE_SFR_MTMSEL_MTMOVFSEL) | 0x00000010;
sfd |= ((REG(RFCORE_SFR_MTMOVF0) & RFCORE_SFR_MTMOVF0_MTMOVF0) << 16);
sfd |= ((REG(RFCORE_SFR_MTMOVF1) & RFCORE_SFR_MTMOVF1_MTMOVF1) << 24);
buffer = REG(RFCORE_SFR_MTMOVF2) & RFCORE_SFR_MTMOVF2_MTMOVF2;
sfd |= (buffer << 32);
return (RTIMER_NOW() - RADIO_TO_RTIMER(timer_val - sfd));
}