OVMS3-idf/components/xtensa-debug-module/include/trax.h

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2016-10-17 04:18:17 +00:00
#include "soc/dport_reg.h"
#include "sdkconfig.h"
#include "esp_err.h"
#include "eri.h"
#include "xtensa-debug-module.h"
typedef enum {
TRAX_DOWNCOUNT_WORDS,
TRAX_DOWNCOUNT_INSTRUCTIONS
} trax_downcount_unit_t;
typedef enum {
TRAX_ENA_NONE = 0,
TRAX_ENA_PRO,
TRAX_ENA_APP,
TRAX_ENA_PRO_APP,
TRAX_ENA_PRO_APP_SWAP
} trax_ena_select_t;
/**
* @brief Enable the trax memory blocks to be used as Trax memory.
*
* @param pro_cpu_enable : true if Trax needs to be enabled for the pro CPU
* @param app_cpu_enable : true if Trax needs to be enabled for the pro CPU
* @param swap_regions : Normally, the pro CPU writes to Trax mem block 0 while
* the app cpu writes to block 1. Setting this to true
* inverts this.
*
* @return esp_err_t. Fails with ESP_ERR_NO_MEM if Trax enable is requested for 2 CPUs
* but memmap only has room for 1, or if Trax memmap is disabled
* entirely.
*/
int trax_enable(trax_ena_select_t ena);
/**
* @brief Start a Trax trace on the current CPU
*
* @param units_until_stop : Set the units of the delay that gets passed to
* trax_trigger_traceend_after_delay. One of TRAX_DOWNCOUNT_WORDS
* or TRAX_DOWNCOUNT_INSTRUCTIONS.
*
* @return esp_err_t. Fails with ESP_ERR_NO_MEM if Trax is disabled.
*/
int trax_start_trace(trax_downcount_unit_t units_until_stop);
/**
* @brief Trigger a Trax trace stop after the indicated delay. If this is called
* before and the previous delay hasn't ended yet, this will overwrite
* that delay with the new value. The delay will always start at the time
* the function is called.
*
* @param delay : The delay to stop the trace in, in the unit indicated to
* trax_start_trace. Note: the trace memory has 4K words available.
*
* @return esp_err_t
*/
int trax_trigger_traceend_after_delay(int delay);