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stmhal/modutime: Refactor to use extmod's version of ticks_cpu.

This commit is contained in:
Damien George 2016-10-18 14:30:00 +11:00
parent 5c93d0b916
commit cd9b14bb11
3 changed files with 23 additions and 13 deletions
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14
stmhal/modutime.c
View File

@ -130,18 +130,6 @@ STATIC mp_obj_t time_time(void) {
}
MP_DEFINE_CONST_FUN_OBJ_0(time_time_obj, time_time);
STATIC mp_obj_t time_ticks_cpu(void) {
static bool enabled = false;
if (!enabled) {
CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
DWT->CYCCNT = 0;
DWT->CTRL |= DWT_CTRL_CYCCNTENA_Msk;
enabled = true;
}
return MP_OBJ_NEW_SMALL_INT(DWT->CYCCNT & MP_SMALL_INT_POSITIVE_MASK);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(time_ticks_cpu_obj, time_ticks_cpu);
STATIC const mp_map_elem_t time_module_globals_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_utime) },
@ -153,7 +141,7 @@ STATIC const mp_map_elem_t time_module_globals_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR_sleep_us), (mp_obj_t)&mp_utime_sleep_us_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_ticks_ms), (mp_obj_t)&mp_utime_ticks_ms_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_ticks_us), (mp_obj_t)&mp_utime_ticks_us_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_ticks_cpu), (mp_obj_t)&time_ticks_cpu_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_ticks_cpu), (mp_obj_t)&mp_utime_ticks_cpu_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_ticks_diff), (mp_obj_t)&mp_utime_ticks_diff_obj },
};

11
stmhal/mphalport.c
View File

@ -7,6 +7,8 @@
#include "usb.h"
#include "uart.h"
bool mp_hal_ticks_cpu_enabled = false;
// this table converts from HAL_StatusTypeDef to POSIX errno
const byte mp_hal_status_to_errno_table[4] = {
[HAL_OK] = 0,
@ -71,6 +73,15 @@ void mp_hal_stdout_tx_strn_cooked(const char *str, size_t len) {
}
}
void mp_hal_ticks_cpu_enable(void) {
if (!mp_hal_ticks_cpu_enabled) {
CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
DWT->CYCCNT = 0;
DWT->CTRL |= DWT_CTRL_CYCCNTENA_Msk;
mp_hal_ticks_cpu_enabled = true;
}
}
void mp_hal_gpio_clock_enable(GPIO_TypeDef *gpio) {
if (0) {
#ifdef __GPIOA_CLK_ENABLE

11
stmhal/mphalport.h
View File

@ -35,13 +35,24 @@ NORETURN void mp_hal_raise(HAL_StatusTypeDef status);
void mp_hal_set_interrupt_char(int c); // -1 to disable
// timing functions
#include "stmhal/systick.h"
#define mp_hal_delay_ms HAL_Delay
#define mp_hal_delay_us(us) sys_tick_udelay(us)
#define mp_hal_delay_us_fast(us) sys_tick_udelay(us)
#define mp_hal_ticks_ms HAL_GetTick
#define mp_hal_ticks_us() sys_tick_get_microseconds()
extern bool mp_hal_ticks_cpu_enabled;
void mp_hal_ticks_cpu_enable(void);
static inline mp_uint_t mp_hal_ticks_cpu(void) {
if (!mp_hal_ticks_cpu_enabled) {
mp_hal_ticks_cpu_enable();
}
return DWT->CYCCNT;
}
// C-level pin HAL
#include "stmhal/pin.h"
#define mp_hal_pin_obj_t const pin_obj_t*