kopia lustrzana https://github.com/pimoroni/pimoroni-pico
91 wiersze
2.8 KiB
C++
91 wiersze
2.8 KiB
C++
#include "hardware/gpio.h"
|
|
#include "wakeup.config.hpp"
|
|
|
|
extern uint32_t runtime_wakeup_gpio_state;
|
|
|
|
namespace {
|
|
struct Wakeup {
|
|
public:
|
|
uint8_t shift_register_state = 0b0;
|
|
|
|
Wakeup() {
|
|
// Assert wakeup pins (indicator LEDs, VSYS hold etc)
|
|
//gpio_init_mask(WAKEUP_PIN_MASK);
|
|
//gpio_set_dir_masked(WAKEUP_PIN_MASK, WAKEUP_PIN_DIR);
|
|
//gpio_put_masked(WAKEUP_PIN_MASK, WAKEUP_PIN_VALUE);
|
|
|
|
#if WAKEUP_HAS_RTC==1
|
|
// Set up RTC I2C pins and send reset command
|
|
i2c_init(WAKEUP_RTC_I2C_INST, 100000);
|
|
gpio_init(WAKEUP_RTC_SDA);
|
|
gpio_init(WAKEUP_RTC_SCL);
|
|
gpio_set_function(WAKEUP_RTC_SDA, GPIO_FUNC_I2C); gpio_pull_up(WAKEUP_RTC_SDA);
|
|
gpio_set_function(WAKEUP_RTC_SCL, GPIO_FUNC_I2C); gpio_pull_up(WAKEUP_RTC_SCL);
|
|
|
|
// Turn off CLOCK_OUT by writing 0b111 to CONTROL_2 (0x01) register
|
|
uint8_t data[] = {0x01, 0b111};
|
|
i2c_write_blocking(WAKEUP_RTC_I2C_INST, WAKEUP_RTC_I2C_ADDR, data, 2, false);
|
|
|
|
i2c_deinit(WAKEUP_RTC_I2C_INST);
|
|
|
|
// Cleanup
|
|
gpio_init(WAKEUP_RTC_SDA);
|
|
gpio_init(WAKEUP_RTC_SCL);
|
|
#endif
|
|
|
|
#if WAKEUP_HAS_SHIFT_REGISTER==1
|
|
// Assert shift register pins (indicator LEDs, VSYS hold etc)
|
|
gpio_init_mask(WAKEUP_SHIFT_REG_PIN_MASK);
|
|
gpio_set_dir_masked(WAKEUP_SHIFT_REG_PIN_MASK, WAKEUP_SHIFT_REG_PIN_DIR);
|
|
gpio_put_masked(WAKEUP_SHIFT_REG_PIN_MASK, WAKEUP_SHIFT_REG_PIN_VALUE);
|
|
|
|
uint8_t state = 0u;
|
|
for(auto i = 0u; i < 8; i++) {
|
|
gpio_put(WAKEUP_SHIFT_REG_CLK, true);
|
|
if(gpio_get(WAKEUP_SHIFT_REG_DATA)) {
|
|
state |= (0b1 << i);
|
|
}
|
|
gpio_put(WAKEUP_SHIFT_REG_CLK, false);
|
|
}
|
|
shift_register_state = state;
|
|
#endif
|
|
}
|
|
};
|
|
|
|
Wakeup wakeup __attribute__ ((init_priority (101)));
|
|
};
|
|
|
|
extern "C" {
|
|
#include "wakeup.h"
|
|
|
|
mp_obj_t Wakeup_get_gpio_state() {
|
|
return mp_obj_new_int(runtime_wakeup_gpio_state);
|
|
}
|
|
|
|
mp_obj_t Wakeup_reset_gpio_state() {
|
|
runtime_wakeup_gpio_state = 0;
|
|
return mp_const_none;
|
|
}
|
|
|
|
void err_no_sr() {
|
|
mp_raise_msg(&mp_type_RuntimeError, "Wakeup_get_shift_state: board does not have a shift register.");
|
|
}
|
|
|
|
mp_obj_t Wakeup_reset_shift_state() {
|
|
#if WAKEUP_HAS_SHIFT_REGISTER==1
|
|
wakeup.shift_register_state = 0;
|
|
return mp_const_none;
|
|
#endif
|
|
err_no_sr();
|
|
return mp_const_none;
|
|
}
|
|
|
|
mp_obj_t Wakeup_get_shift_state() {
|
|
#if WAKEUP_HAS_SHIFT_REGISTER==1
|
|
return mp_obj_new_int(wakeup.shift_register_state);
|
|
#endif
|
|
err_no_sr();
|
|
return mp_const_none;
|
|
}
|
|
|
|
} |