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#include "api-hal-spi.h"
#include <api-hal-resources.h>
#include <stdbool.h>
#include <string.h>
#include <spi.h>
#include <furi.h>
extern void Enable_SPI(SPI_HandleTypeDef* spi);
void api_hal_spi_init() {
// Spi structure is const, but mutex is not
// Need some hell-ish casting to make it work
*(osMutexId_t*)spi_r.mutex = osMutexNew(NULL);
*(osMutexId_t*)spi_d.mutex = osMutexNew(NULL);
//
for (size_t i=0; i<ApiHalSpiDeviceIdMax; ++i) {
hal_gpio_init(
api_hal_spi_devices[i].chip_select,
GpioModeOutputPushPull,
GpioPullNo,
GpioSpeedVeryHigh
);
}
FURI_LOG_I("FuriHalSpi", "Init OK");
}
void api_hal_spi_bus_lock(const ApiHalSpiBus* bus) {
furi_assert(bus);
if (bus->mutex) {
osMutexAcquire(*bus->mutex, osWaitForever);
}
}
void api_hal_spi_bus_unlock(const ApiHalSpiBus* bus) {
furi_assert(bus);
if (bus->mutex) {
osMutexRelease(*bus->mutex);
}
}
void api_hal_spi_bus_configure(const ApiHalSpiBus* bus, const SPI_InitTypeDef* config) {
furi_assert(bus);
if(memcmp(&bus->spi->Init, config, sizeof(SPI_InitTypeDef))) {
memcpy((SPI_InitTypeDef*)&bus->spi->Init, config, sizeof(SPI_InitTypeDef));
if(HAL_SPI_Init((SPI_HandleTypeDef*)bus->spi) != HAL_OK) {
Error_Handler();
}
Enable_SPI((SPI_HandleTypeDef*)bus->spi);
}
}
void api_hal_spi_bus_reset(const ApiHalSpiBus* bus) {
furi_assert(bus);
HAL_SPI_DeInit((SPI_HandleTypeDef*)bus->spi);
HAL_SPI_Init((SPI_HandleTypeDef*)bus->spi);
Enable_SPI((SPI_HandleTypeDef*)bus->spi);
}
bool api_hal_spi_bus_rx(const ApiHalSpiBus* bus, uint8_t* buffer, size_t size, uint32_t timeout) {
furi_assert(bus);
furi_assert(buffer);
furi_assert(size > 0);
HAL_StatusTypeDef ret = HAL_SPI_Receive((SPI_HandleTypeDef *)bus->spi, buffer, size, HAL_MAX_DELAY);
return ret == HAL_OK;
}
bool api_hal_spi_bus_tx(const ApiHalSpiBus* bus, uint8_t* buffer, size_t size, uint32_t timeout) {
furi_assert(bus);
furi_assert(buffer);
furi_assert(size > 0);
HAL_StatusTypeDef ret = HAL_SPI_Transmit((SPI_HandleTypeDef *)bus->spi, buffer, size, HAL_MAX_DELAY);
return ret == HAL_OK;
}
bool api_hal_spi_bus_trx(const ApiHalSpiBus* bus, uint8_t* tx_buffer, uint8_t* rx_buffer, size_t size, uint32_t timeout) {
furi_assert(bus);
furi_assert(tx_buffer);
furi_assert(rx_buffer);
furi_assert(size > 0);
HAL_StatusTypeDef ret = HAL_SPI_TransmitReceive((SPI_HandleTypeDef *)bus->spi, tx_buffer, rx_buffer, size, HAL_MAX_DELAY);
return ret == HAL_OK;
}
const ApiHalSpiDevice* api_hal_spi_device_get(ApiHalSpiDeviceId device_id) {
furi_assert(device_id < ApiHalSpiDeviceIdMax);
const ApiHalSpiDevice* device = &api_hal_spi_devices[device_id];
assert(device);
api_hal_spi_bus_lock(device->bus);
if (device->config) {
memcpy((SPI_InitTypeDef*)&device->bus->spi->Init, device->config, sizeof(SPI_InitTypeDef));
if(HAL_SPI_Init((SPI_HandleTypeDef *)device->bus->spi) != HAL_OK) {
Error_Handler();
}
Enable_SPI((SPI_HandleTypeDef *)device->bus->spi);
}
return device;
}
void api_hal_spi_device_return(const ApiHalSpiDevice* device) {
api_hal_spi_bus_unlock(device->bus);
}
bool api_hal_spi_device_rx(const ApiHalSpiDevice* device, uint8_t* buffer, size_t size, uint32_t timeout) {
furi_assert(device);
furi_assert(buffer);
furi_assert(size > 0);
if (device->chip_select) {
hal_gpio_write(device->chip_select, false);
}
bool ret = api_hal_spi_bus_rx(device->bus, buffer, size, HAL_MAX_DELAY);
if (device->chip_select) {
hal_gpio_write(device->chip_select, true);
}
return ret;
}
bool api_hal_spi_device_tx(const ApiHalSpiDevice* device, uint8_t* buffer, size_t size, uint32_t timeout) {
furi_assert(device);
furi_assert(buffer);
furi_assert(size > 0);
if (device->chip_select) {
hal_gpio_write(device->chip_select, false);
}
bool ret = api_hal_spi_bus_tx(device->bus, buffer, size, HAL_MAX_DELAY);
if (device->chip_select) {
hal_gpio_write(device->chip_select, true);
}
return ret;
}
bool api_hal_spi_device_trx(const ApiHalSpiDevice* device, uint8_t* tx_buffer, uint8_t* rx_buffer, size_t size, uint32_t timeout) {
furi_assert(device);
furi_assert(tx_buffer);
furi_assert(rx_buffer);
furi_assert(size > 0);
if (device->chip_select) {
hal_gpio_write(device->chip_select, false);
}
bool ret = api_hal_spi_bus_trx(device->bus, tx_buffer, rx_buffer, size, HAL_MAX_DELAY);
if (device->chip_select) {
hal_gpio_write(device->chip_select, true);
}
return ret;
}
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