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#include <string.h>
#include "py/mpstate.h"
#include "py/runtime.h"
#include "py/mperrno.h"
#include "py/mphal.h"
#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,
[HAL_ERROR] = MP_EIO,
[HAL_BUSY] = MP_EBUSY,
[HAL_TIMEOUT] = MP_ETIMEDOUT,
};
NORETURN void mp_hal_raise(HAL_StatusTypeDef status) {
mp_raise_OSError(mp_hal_status_to_errno_table[status]);
}
void mp_hal_set_interrupt_char(int c) {
usb_vcp_set_interrupt_char(c);
}
int mp_hal_stdin_rx_chr(void) {
for (;;) {
#if 0
#ifdef USE_HOST_MODE
pyb_usb_host_process();
int c = pyb_usb_host_get_keyboard();
if (c != 0) {
return c;
}
#endif
#endif
byte c;
if (usb_vcp_recv_byte(&c) != 0) {
return c;
} else if (MP_STATE_PORT(pyb_stdio_uart) != NULL && uart_rx_any(MP_STATE_PORT(pyb_stdio_uart))) {
return uart_rx_char(MP_STATE_PORT(pyb_stdio_uart));
}
__WFI();
}
}
void mp_hal_stdout_tx_str(const char *str) {
mp_hal_stdout_tx_strn(str, strlen(str));
}
void mp_hal_stdout_tx_strn(const char *str, size_t len) {
if (MP_STATE_PORT(pyb_stdio_uart) != NULL) {
uart_tx_strn(MP_STATE_PORT(pyb_stdio_uart), str, len);
}
#if 0 && defined(USE_HOST_MODE) && MICROPY_HW_HAS_LCD
lcd_print_strn(str, len);
#endif
if (usb_vcp_is_enabled()) {
usb_vcp_send_strn(str, len);
}
}
void mp_hal_stdout_tx_strn_cooked(const char *str, size_t len) {
// send stdout to UART and USB CDC VCP
if (MP_STATE_PORT(pyb_stdio_uart) != NULL) {
uart_tx_strn_cooked(MP_STATE_PORT(pyb_stdio_uart), str, len);
}
if (usb_vcp_is_enabled()) {
usb_vcp_send_strn_cooked(str, 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
} else if (gpio == GPIOA) {
__GPIOA_CLK_ENABLE();
#endif
#ifdef __GPIOB_CLK_ENABLE
} else if (gpio == GPIOB) {
__GPIOB_CLK_ENABLE();
#endif
#ifdef __GPIOC_CLK_ENABLE
} else if (gpio == GPIOC) {
__GPIOC_CLK_ENABLE();
#endif
#ifdef __GPIOD_CLK_ENABLE
} else if (gpio == GPIOD) {
__GPIOD_CLK_ENABLE();
#endif
#ifdef __GPIOE_CLK_ENABLE
} else if (gpio == GPIOE) {
__GPIOE_CLK_ENABLE();
#endif
#if defined(GPIOF) && defined(__GPIOF_CLK_ENABLE)
} else if (gpio == GPIOF) {
__GPIOF_CLK_ENABLE();
#endif
#if defined(GPIOG) && defined(__GPIOG_CLK_ENABLE)
} else if (gpio == GPIOG) {
#if defined(STM32L476xx) || defined(STM32L486xx)
// Port G pins 2 thru 15 are powered using VddIO2 on these MCUs.
HAL_PWREx_EnableVddIO2();
#endif
__GPIOG_CLK_ENABLE();
#endif
#ifdef __GPIOH_CLK_ENABLE
} else if (gpio == GPIOH) {
__GPIOH_CLK_ENABLE();
#endif
#if defined(GPIOI) && defined(__GPIOI_CLK_ENABLE)
} else if (gpio == GPIOI) {
__GPIOI_CLK_ENABLE();
#endif
#if defined(GPIOJ) && defined(__GPIOJ_CLK_ENABLE)
} else if (gpio == GPIOJ) {
__GPIOJ_CLK_ENABLE();
#endif
#if defined(GPIOK) && defined(__GPIOK_CLK_ENABLE)
} else if (gpio == GPIOK) {
__GPIOK_CLK_ENABLE();
#endif
}
}
void mp_hal_pin_config(mp_hal_pin_obj_t pin_obj, uint32_t mode, uint32_t pull, uint32_t alt) {
GPIO_TypeDef *gpio = pin_obj->gpio;
uint32_t pin = pin_obj->pin;
mp_hal_gpio_clock_enable(gpio);
gpio->MODER = (gpio->MODER & ~(3 << (2 * pin))) | ((mode & 3) << (2 * pin));
gpio->OTYPER = (gpio->OTYPER & ~(1 << pin)) | ((mode >> 2) << pin);
gpio->OSPEEDR = (gpio->OSPEEDR & ~(3 << (2 * pin))) | (2 << (2 * pin)); // full speed
gpio->PUPDR = (gpio->PUPDR & ~(3 << (2 * pin))) | (pull << (2 * pin));
gpio->AFR[pin >> 3] = (gpio->AFR[pin >> 3] & ~(15 << (4 * (pin & 7)))) | (alt << (4 * (pin & 7)));
}
bool mp_hal_pin_config_alt(mp_hal_pin_obj_t pin, uint32_t mode, uint32_t pull, uint8_t fn, uint8_t unit) {
const pin_af_obj_t *af = pin_find_af(pin, fn, unit);
if (af == NULL) {
return false;
}
mp_hal_pin_config(pin, mode, pull, af->idx);
return true;
}