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#pragma once
#include <stdint.h>
#include <mmio/mmio.h>
struct ITM_reg_t {
union {
volatile uint32_t u32;
volatile uint16_t u16;
volatile uint8_t u8;
} STIM[256];
uint32_t _reserved[640];
volatile uint32_t TER[8];
uint32_t _reserved2[8];
volatile uint32_t TPR;
uint32_t _reserved3[15];
volatile uint32_t TCR;
uint32_t _reserved4[76];
volatile uint32_t LSR;
// FIXME - only supports first 32 stimulus ports
void stim_blocking(unsigned stim, char data) {
if (!(this->TER[0] & (1<<stim))) {
return;
}
while (!(this->STIM[stim].u8 & 1))
;
this->STIM[stim].u8 = data;
}
void stim_blocking(unsigned stim, uint8_t data) {
if (!(this->TER[0] & (1<<stim))) {
return;
}
while (!(this->STIM[stim].u8 & 1))
;
this->STIM[stim].u8 = data;
}
void stim_blocking(unsigned stim, uint16_t data) {
if (!(this->TER[0] & (1<<stim))) {
return;
}
while (!(this->STIM[stim].u16 & 1))
;
this->STIM[stim].u16 = data;
}
void stim_blocking(unsigned stim, uint32_t data) {
if (!(this->TER[0] & (1<<stim))) {
return;
}
while (!(this->STIM[stim].u32 & 1))
;
this->STIM[stim].u32 = data;
}
};
struct DWT_reg_t {
volatile uint32_t CTRL;
volatile uint32_t CYCCNT;
volatile uint32_t CPICNT;
volatile uint32_t EXCCNT;
volatile uint32_t SLEEPCNT;
volatile uint32_t LSUCNT;
volatile uint32_t FOLDCNT;
volatile uint32_t PCSR;
};
struct TPIU_reg_t {
volatile uint32_t SSPSR;
volatile uint32_t CSPSR;
uint32_t _reserved[2];
volatile uint32_t ACPR;
uint32_t _reserved2[55];
volatile uint32_t SPPR;
};
constexpr mmio_ptr<ITM_reg_t> ITM {0xe0000000};
constexpr mmio_ptr<DWT_reg_t> DWT {0xe0001000};
constexpr mmio_ptr<TPIU_reg_t> TPIU {0xe0040000};
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