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cc26xx: implement poll mode, hardware timestamps, and other minor changes in the IEEE radio driver

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This commit is contained in:
Atis Elsts 2016-04-25 17:58:24 +03:00
parent 3ff8aa8ad8
commit ac6f8008fd
4 changed files with 328 additions and 72 deletions
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121
cpu/cc26xx-cc13xx/rf-core/rf-core.c
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@ -92,6 +92,8 @@
#define ENABLED_IRQS (RX_FRAME_IRQ | ERROR_IRQ)
#endif
#define ENABLED_IRQS_POLL_MODE (ENABLED_IRQS & ~(RX_FRAME_IRQ | ERROR_IRQ))
#define cc26xx_rf_cpe0_isr RFCCPE0IntHandler
#define cc26xx_rf_cpe1_isr RFCCPE1IntHandler
/*---------------------------------------------------------------------------*/
@ -101,6 +103,10 @@ static rfc_radioOp_t *last_radio_op = NULL;
/* A struct holding pointers to the primary mode's abort() and restore() */
static const rf_core_primary_mode_t *primary_mode = NULL;
/*---------------------------------------------------------------------------*/
/* Radio timer (RAT) offset as compared to the rtimer counter (RTC) */
int32_t rat_offset = 0;
static bool rat_offset_known = false;
/*---------------------------------------------------------------------------*/
PROCESS(rf_core_process, "CC13xx / CC26xx RF driver");
/*---------------------------------------------------------------------------*/
#define RF_CORE_CLOCKS_MASK (RFC_PWR_PWMCLKEN_RFC_M | RFC_PWR_PWMCLKEN_CPE_M \
@ -265,6 +271,66 @@ rf_core_power_up()
return RF_CORE_CMD_OK;
}
/*---------------------------------------------------------------------------*/
uint8_t
rf_core_start_rat(void)
{
uint32_t cmd_status;
rfc_CMD_SYNC_START_RAT_t cmd_start;
/* Start radio timer (RAT) */
rf_core_init_radio_op((rfc_radioOp_t *)&cmd_start, sizeof(cmd_start), CMD_SYNC_START_RAT);
/* copy the value and send back */
cmd_start.rat0 = rat_offset;
if(rf_core_send_cmd((uint32_t)&cmd_start, &cmd_status) != RF_CORE_CMD_OK) {
PRINTF("rf_core_get_rat_rtc_offset: SYNC_START_RAT fail, CMDSTA=0x%08lx\n",
cmd_status);
return RF_CORE_CMD_ERROR;
}
/* Wait until done (?) */
if(rf_core_wait_cmd_done(&cmd_start) != RF_CORE_CMD_OK) {
PRINTF("rf_core_cmd_ok: SYNC_START_RAT wait, CMDSTA=0x%08lx, status=0x%04x\n",
cmd_status, cmd_start.status);
return RF_CORE_CMD_ERROR;
}
return RF_CORE_CMD_OK;
}
/*---------------------------------------------------------------------------*/
uint8_t
rf_core_stop_rat(void)
{
rfc_CMD_SYNC_STOP_RAT_t cmd_stop;
uint32_t cmd_status;
rf_core_init_radio_op((rfc_radioOp_t *)&cmd_stop, sizeof(cmd_stop), CMD_SYNC_STOP_RAT);
int ret = rf_core_send_cmd((uint32_t)&cmd_stop, &cmd_status);
if(ret != RF_CORE_CMD_OK) {
PRINTF("rf_core_get_rat_rtc_offset: SYNC_STOP_RAT fail, ret %d CMDSTA=0x%08lx\n",
ret, cmd_status);
return ret;
}
/* Wait until done */
ret = rf_core_wait_cmd_done(&cmd_stop);
if(ret != RF_CORE_CMD_OK) {
PRINTF("rf_core_cmd_ok: SYNC_STOP_RAT wait, CMDSTA=0x%08lx, status=0x%04x\n",
cmd_status, cmd_stop.status);
return ret;
}
if(!rat_offset_known) {
/* save the offset, but only if this is the first time */
rat_offset_known = true;
rat_offset = cmd_stop.rat0;
}
return RF_CORE_CMD_OK;
}
/*---------------------------------------------------------------------------*/
void
rf_core_power_down()
{
@ -280,6 +346,8 @@ rf_core_power_down()
fs_powerdown();
}
rf_core_stop_rat();
/* Shut down the RFCORE clock domain in the MCU VD */
ti_lib_prcm_domain_disable(PRCM_DOMAIN_RFCORE);
ti_lib_prcm_load_set();
@ -329,22 +397,6 @@ rf_core_set_modesel()
}
/*---------------------------------------------------------------------------*/
uint8_t
rf_core_start_rat()
{
uint32_t cmd_status;
/* Start radio timer (RAT) */
if(rf_core_send_cmd(CMDR_DIR_CMD(CMD_START_RAT), &cmd_status)
!= RF_CORE_CMD_OK) {
PRINTF("rf_core_apply_patches: START_RAT fail, CMDSTA=0x%08lx\n",
cmd_status);
return RF_CORE_CMD_ERROR;
}
return RF_CORE_CMD_OK;
}
/*---------------------------------------------------------------------------*/
uint8_t
rf_core_boot()
{
if(rf_core_power_up() != RF_CORE_CMD_OK) {
@ -366,10 +418,31 @@ rf_core_boot()
return RF_CORE_CMD_OK;
}
/*---------------------------------------------------------------------------*/
uint8_t
rf_core_restart_rat(void)
{
if(rf_core_stop_rat() != RF_CORE_CMD_OK) {
PRINTF("rf_core_restart_rat: rf_core_stop_rat() failed\n");
return RF_CORE_CMD_ERROR;
}
if(rf_core_start_rat() != RF_CORE_CMD_OK) {
PRINTF("rf_core_restart_rat: rf_core_start_rat() failed\n");
rf_core_power_down();
return RF_CORE_CMD_ERROR;
}
return RF_CORE_CMD_OK;
}
/*---------------------------------------------------------------------------*/
void
rf_core_setup_interrupts()
rf_core_setup_interrupts(bool poll_mode)
{
bool interrupts_disabled;
const uint32_t enabled_irqs = poll_mode ? ENABLED_IRQS_POLL_MODE : ENABLED_IRQS;
/* We are already turned on by the caller, so this should not happen */
if(!rf_core_is_accessible()) {
@ -384,7 +457,7 @@ rf_core_setup_interrupts()
HWREG(RFC_DBELL_NONBUF_BASE + RFC_DBELL_O_RFCPEISL) = ERROR_IRQ;
/* Acknowledge configured interrupts */
HWREG(RFC_DBELL_NONBUF_BASE + RFC_DBELL_O_RFCPEIEN) = ENABLED_IRQS;
HWREG(RFC_DBELL_NONBUF_BASE + RFC_DBELL_O_RFCPEIEN) = enabled_irqs;
/* Clear interrupt flags, active low clear(?) */
HWREG(RFC_DBELL_NONBUF_BASE + RFC_DBELL_O_RFCPEIFG) = 0x0;
@ -400,18 +473,20 @@ rf_core_setup_interrupts()
}
/*---------------------------------------------------------------------------*/
void
rf_core_cmd_done_en(bool fg)
rf_core_cmd_done_en(bool fg, bool poll_mode)
{
uint32_t irq = fg ? IRQ_LAST_FG_COMMAND_DONE : IRQ_LAST_COMMAND_DONE;
const uint32_t enabled_irqs = poll_mode ? ENABLED_IRQS_POLL_MODE : ENABLED_IRQS;
HWREG(RFC_DBELL_NONBUF_BASE + RFC_DBELL_O_RFCPEIFG) = ENABLED_IRQS;
HWREG(RFC_DBELL_NONBUF_BASE + RFC_DBELL_O_RFCPEIEN) = ENABLED_IRQS | irq;
HWREG(RFC_DBELL_NONBUF_BASE + RFC_DBELL_O_RFCPEIFG) = enabled_irqs;
HWREG(RFC_DBELL_NONBUF_BASE + RFC_DBELL_O_RFCPEIEN) = enabled_irqs | irq;
}
/*---------------------------------------------------------------------------*/
void
rf_core_cmd_done_dis()
rf_core_cmd_done_dis(bool poll_mode)
{
HWREG(RFC_DBELL_NONBUF_BASE + RFC_DBELL_O_RFCPEIEN) = ENABLED_IRQS;
const uint32_t enabled_irqs = poll_mode ? ENABLED_IRQS_POLL_MODE : ENABLED_IRQS;
HWREG(RFC_DBELL_NONBUF_BASE + RFC_DBELL_O_RFCPEIEN) = enabled_irqs;
}
/*---------------------------------------------------------------------------*/
rfc_radioOp_t *