425150040c
They are the same as the existing raw constants (namely 0, 1, 2) but we want to explicitly show that one can use the HAL's constants if necessary (eg the mpconfigboard.h files do use the HAL's constants to define the pull state of certain configurable pins).
78 lines
3.3 KiB
C
78 lines
3.3 KiB
C
// We use the ST Cube HAL library for most hardware peripherals
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#include STM32_HAL_H
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#include "pin.h"
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// The unique id address differs per MCU. Ideally this define should
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// go in some MCU-specific header, but for now it lives here.
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#if defined(MCU_SERIES_F4)
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#define MP_HAL_UNIQUE_ID_ADDRESS (0x1fff7a10)
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#define MP_HAL_CLEANINVALIDATE_DCACHE(addr, size)
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#define MP_HAL_CLEAN_DCACHE(addr, size)
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#elif defined(MCU_SERIES_F7)
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#define MP_HAL_UNIQUE_ID_ADDRESS (0x1ff0f420)
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#define MP_HAL_CLEANINVALIDATE_DCACHE(addr, size) (SCB_CleanInvalidateDCache_by_Addr((uint32_t*)((uint32_t)addr & ~0x1f), ((uint32_t)(addr + size + 0x1f) & ~0x1f) - ((uint32_t)addr & ~0x1f)))
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#define MP_HAL_CLEAN_DCACHE(addr, size) (SCB_CleanDCache_by_Addr((uint32_t*)((uint32_t)addr & ~0x1f), ((uint32_t)(addr + size + 0x1f) & ~0x1f) - ((uint32_t)addr & ~0x1f)))
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#elif defined(MCU_SERIES_L4)
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#define MP_HAL_UNIQUE_ID_ADDRESS (0x1fff7590)
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#define MP_HAL_CLEANINVALIDATE_DCACHE(addr, size)
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#define MP_HAL_CLEAN_DCACHE(addr, size)
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#else
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#error mphalport.h: Unrecognized MCU_SERIES
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#endif
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extern const unsigned char mp_hal_status_to_errno_table[4];
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NORETURN void mp_hal_raise(HAL_StatusTypeDef status);
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void mp_hal_set_interrupt_char(int c); // -1 to disable
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// timing functions
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#include "stmhal/systick.h"
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#define mp_hal_delay_ms HAL_Delay
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#define mp_hal_delay_us(us) sys_tick_udelay(us)
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#define mp_hal_delay_us_fast(us) sys_tick_udelay(us)
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#define mp_hal_ticks_ms HAL_GetTick
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#define mp_hal_ticks_us() sys_tick_get_microseconds()
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extern bool mp_hal_ticks_cpu_enabled;
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void mp_hal_ticks_cpu_enable(void);
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static inline mp_uint_t mp_hal_ticks_cpu(void) {
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if (!mp_hal_ticks_cpu_enabled) {
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mp_hal_ticks_cpu_enable();
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}
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return DWT->CYCCNT;
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}
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// C-level pin HAL
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#include "stmhal/pin.h"
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#define MP_HAL_PIN_FMT "%q"
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#define MP_HAL_PIN_MODE_INPUT (0)
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#define MP_HAL_PIN_MODE_OUTPUT (1)
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#define MP_HAL_PIN_MODE_ALT (2)
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#define MP_HAL_PIN_MODE_ANALOG (3)
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#define MP_HAL_PIN_MODE_OPEN_DRAIN (5)
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#define MP_HAL_PIN_MODE_ALT_OPEN_DRAIN (6)
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#define MP_HAL_PIN_PULL_NONE (GPIO_NOPULL)
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#define MP_HAL_PIN_PULL_UP (GPIO_PULLUP)
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#define MP_HAL_PIN_PULL_DOWN (GPIO_PULLDOWN)
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#define mp_hal_pin_obj_t const pin_obj_t*
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#define mp_hal_get_pin_obj(o) pin_find(o)
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#define mp_hal_pin_name(p) ((p)->name)
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#define mp_hal_pin_input(p) mp_hal_pin_config((p), MP_HAL_PIN_MODE_INPUT, MP_HAL_PIN_PULL_NONE, 0)
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#define mp_hal_pin_output(p) mp_hal_pin_config((p), MP_HAL_PIN_MODE_OUTPUT, MP_HAL_PIN_PULL_NONE, 0)
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#define mp_hal_pin_open_drain(p) mp_hal_pin_config((p), MP_HAL_PIN_MODE_OPEN_DRAIN, MP_HAL_PIN_PULL_NONE, 0)
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#define mp_hal_pin_high(p) (((p)->gpio->BSRR) = (p)->pin_mask)
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#define mp_hal_pin_low(p) (((p)->gpio->BSRR) = ((p)->pin_mask << 16))
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#define mp_hal_pin_od_low(p) mp_hal_pin_low(p)
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#define mp_hal_pin_od_high(p) mp_hal_pin_high(p)
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#define mp_hal_pin_read(p) (((p)->gpio->IDR >> (p)->pin) & 1)
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#define mp_hal_pin_write(p, v) do { if (v) { mp_hal_pin_high(p); } else { mp_hal_pin_low(p); } } while (0)
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void mp_hal_gpio_clock_enable(GPIO_TypeDef *gpio);
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void mp_hal_pin_config(mp_hal_pin_obj_t pin, uint32_t mode, uint32_t pull, uint32_t alt);
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bool mp_hal_pin_config_alt(mp_hal_pin_obj_t pin, uint32_t mode, uint32_t pull, uint8_t fn, uint8_t unit);
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