flipperzero-firmware/firmware/targets/f6/furi-hal/furi-hal-spi-config.c
あく 418c0939a0
Guard RCC registers access with critical section (#854)
* Core: critical section macros. FuriHal: guard rcc registers access with critical section, fix condition race.
* FuriHal: update documentation.

Co-authored-by: SG <who.just.the.doctor@gmail.com>
2021-12-01 01:07:17 +03:00

267 lines
10 KiB
C

#include <furi-hal-spi-config.h>
#include <furi-hal-resources.h>
/* SPI Presets */
const LL_SPI_InitTypeDef furi_hal_spi_preset_2edge_low_8m = {
.Mode = LL_SPI_MODE_MASTER,
.TransferDirection = LL_SPI_FULL_DUPLEX,
.DataWidth = LL_SPI_DATAWIDTH_8BIT,
.ClockPolarity = LL_SPI_POLARITY_LOW,
.ClockPhase = LL_SPI_PHASE_2EDGE,
.NSS = LL_SPI_NSS_SOFT,
.BaudRate = LL_SPI_BAUDRATEPRESCALER_DIV8,
.BitOrder = LL_SPI_MSB_FIRST,
.CRCCalculation = LL_SPI_CRCCALCULATION_DISABLE,
.CRCPoly = 7,
};
const LL_SPI_InitTypeDef furi_hal_spi_preset_1edge_low_8m = {
.Mode = LL_SPI_MODE_MASTER,
.TransferDirection = LL_SPI_FULL_DUPLEX,
.DataWidth = LL_SPI_DATAWIDTH_8BIT,
.ClockPolarity = LL_SPI_POLARITY_LOW,
.ClockPhase = LL_SPI_PHASE_1EDGE,
.NSS = LL_SPI_NSS_SOFT,
.BaudRate = LL_SPI_BAUDRATEPRESCALER_DIV8,
.BitOrder = LL_SPI_MSB_FIRST,
.CRCCalculation = LL_SPI_CRCCALCULATION_DISABLE,
.CRCPoly = 7,
};
const LL_SPI_InitTypeDef furi_hal_spi_preset_1edge_low_4m = {
.Mode = LL_SPI_MODE_MASTER,
.TransferDirection = LL_SPI_FULL_DUPLEX,
.DataWidth = LL_SPI_DATAWIDTH_8BIT,
.ClockPolarity = LL_SPI_POLARITY_LOW,
.ClockPhase = LL_SPI_PHASE_1EDGE,
.NSS = LL_SPI_NSS_SOFT,
.BaudRate = LL_SPI_BAUDRATEPRESCALER_DIV16,
.BitOrder = LL_SPI_MSB_FIRST,
.CRCCalculation = LL_SPI_CRCCALCULATION_DISABLE,
.CRCPoly = 7,
};
const LL_SPI_InitTypeDef furi_hal_spi_preset_1edge_low_16m = {
.Mode = LL_SPI_MODE_MASTER,
.TransferDirection = LL_SPI_FULL_DUPLEX,
.DataWidth = LL_SPI_DATAWIDTH_8BIT,
.ClockPolarity = LL_SPI_POLARITY_LOW,
.ClockPhase = LL_SPI_PHASE_1EDGE,
.NSS = LL_SPI_NSS_SOFT,
.BaudRate = LL_SPI_BAUDRATEPRESCALER_DIV2,
.BitOrder = LL_SPI_MSB_FIRST,
.CRCCalculation = LL_SPI_CRCCALCULATION_DISABLE,
.CRCPoly = 7,
};
const LL_SPI_InitTypeDef furi_hal_spi_preset_1edge_low_2m = {
.Mode = LL_SPI_MODE_MASTER,
.TransferDirection = LL_SPI_FULL_DUPLEX,
.DataWidth = LL_SPI_DATAWIDTH_8BIT,
.ClockPolarity = LL_SPI_POLARITY_LOW,
.ClockPhase = LL_SPI_PHASE_1EDGE,
.NSS = LL_SPI_NSS_SOFT,
.BaudRate = LL_SPI_BAUDRATEPRESCALER_DIV32,
.BitOrder = LL_SPI_MSB_FIRST,
.CRCCalculation = LL_SPI_CRCCALCULATION_DISABLE,
.CRCPoly = 7,
};
/* SPI Buses */
osMutexId_t furi_hal_spi_bus_r_mutex = NULL;
static void furi_hal_spi_bus_r_event_callback(FuriHalSpiBus* bus, FuriHalSpiBusEvent event) {
if (event == FuriHalSpiBusEventInit) {
furi_hal_spi_bus_r_mutex = osMutexNew(NULL);
FURI_CRITICAL_ENTER();
LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_SPI1);
LL_APB2_GRP1_ForceReset(LL_APB2_GRP1_PERIPH_SPI1);
FURI_CRITICAL_EXIT();
bus->current_handle = NULL;
} else if (event == FuriHalSpiBusEventDeinit) {
furi_check(osMutexDelete(furi_hal_spi_bus_r_mutex));
} else if (event == FuriHalSpiBusEventLock) {
furi_check(osMutexAcquire(furi_hal_spi_bus_r_mutex, osWaitForever) == osOK);
} else if (event == FuriHalSpiBusEventUnlock) {
furi_check(osMutexRelease(furi_hal_spi_bus_r_mutex) == osOK);
} else if (event == FuriHalSpiBusEventActivate) {
FURI_CRITICAL_ENTER();
LL_APB2_GRP1_ReleaseReset(LL_APB2_GRP1_PERIPH_SPI1);
FURI_CRITICAL_EXIT();
} else if (event == FuriHalSpiBusEventDeactivate) {
FURI_CRITICAL_ENTER();
LL_APB2_GRP1_ForceReset(LL_APB2_GRP1_PERIPH_SPI1);
FURI_CRITICAL_EXIT();
}
}
FuriHalSpiBus furi_hal_spi_bus_r = {
.spi=SPI1,
.callback = furi_hal_spi_bus_r_event_callback,
};
osMutexId_t furi_hal_spi_bus_d_mutex = NULL;
static void furi_hal_spi_bus_d_event_callback(FuriHalSpiBus* bus, FuriHalSpiBusEvent event) {
if (event == FuriHalSpiBusEventInit) {
furi_hal_spi_bus_d_mutex = osMutexNew(NULL);
FURI_CRITICAL_ENTER();
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_SPI2);
LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_SPI2);
FURI_CRITICAL_EXIT();
bus->current_handle = NULL;
} else if (event == FuriHalSpiBusEventDeinit) {
furi_check(osMutexDelete(furi_hal_spi_bus_d_mutex));
} else if (event == FuriHalSpiBusEventLock) {
furi_check(osMutexAcquire(furi_hal_spi_bus_d_mutex, osWaitForever) == osOK);
} else if (event == FuriHalSpiBusEventUnlock) {
furi_check(osMutexRelease(furi_hal_spi_bus_d_mutex) == osOK);
} else if (event == FuriHalSpiBusEventActivate) {
FURI_CRITICAL_ENTER();
LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_SPI2);
FURI_CRITICAL_EXIT();
} else if (event == FuriHalSpiBusEventDeactivate) {
FURI_CRITICAL_ENTER();
LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_SPI2);
FURI_CRITICAL_EXIT();
}
}
FuriHalSpiBus furi_hal_spi_bus_d = {
.spi=SPI2,
.callback = furi_hal_spi_bus_d_event_callback,
};
/* SPI Bus Handles */
inline static void furi_hal_spi_bus_r_handle_event_callback(FuriHalSpiBusHandle* handle, FuriHalSpiBusHandleEvent event, const LL_SPI_InitTypeDef* preset) {
if (event == FuriHalSpiBusHandleEventInit) {
hal_gpio_write(handle->cs, true);
hal_gpio_init(handle->cs, GpioModeOutputPushPull, GpioPullNo, GpioSpeedVeryHigh);
} else if (event == FuriHalSpiBusHandleEventDeinit) {
hal_gpio_write(handle->cs, true);
hal_gpio_init(handle->cs, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
} else if (event == FuriHalSpiBusHandleEventActivate) {
LL_SPI_Init(handle->bus->spi, (LL_SPI_InitTypeDef*)preset);
LL_SPI_SetRxFIFOThreshold(handle->bus->spi, LL_SPI_RX_FIFO_TH_QUARTER);
LL_SPI_Enable(handle->bus->spi);
hal_gpio_init_ex(handle->miso, GpioModeAltFunctionPushPull, GpioPullNo, GpioSpeedVeryHigh, GpioAltFn5SPI1);
hal_gpio_init_ex(handle->mosi, GpioModeAltFunctionPushPull, GpioPullNo, GpioSpeedVeryHigh, GpioAltFn5SPI1);
hal_gpio_init_ex(handle->sck, GpioModeAltFunctionPushPull, GpioPullNo, GpioSpeedVeryHigh, GpioAltFn5SPI1);
hal_gpio_write(handle->cs, false);
} else if (event == FuriHalSpiBusHandleEventDeactivate) {
hal_gpio_write(handle->cs, true);
hal_gpio_init(handle->miso, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
hal_gpio_init(handle->mosi, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
hal_gpio_init(handle->sck, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
LL_SPI_Disable(handle->bus->spi);
}
}
static void furi_hal_spi_bus_handle_subghz_event_callback(FuriHalSpiBusHandle* handle, FuriHalSpiBusHandleEvent event) {
furi_hal_spi_bus_r_handle_event_callback(handle, event, &furi_hal_spi_preset_1edge_low_8m);
}
FuriHalSpiBusHandle furi_hal_spi_bus_handle_subghz = {
.bus=&furi_hal_spi_bus_r,
.callback=furi_hal_spi_bus_handle_subghz_event_callback,
.miso=&gpio_spi_r_miso,
.mosi=&gpio_spi_r_mosi,
.sck=&gpio_spi_r_sck,
.cs=&gpio_subghz_cs,
};
static void furi_hal_spi_bus_handle_nfc_event_callback(FuriHalSpiBusHandle* handle, FuriHalSpiBusHandleEvent event) {
furi_hal_spi_bus_r_handle_event_callback(handle, event, &furi_hal_spi_preset_2edge_low_8m);
}
FuriHalSpiBusHandle furi_hal_spi_bus_handle_nfc = {
.bus=&furi_hal_spi_bus_r,
.callback=furi_hal_spi_bus_handle_nfc_event_callback,
.miso=&gpio_spi_r_miso,
.mosi=&gpio_spi_r_mosi,
.sck=&gpio_spi_r_sck,
.cs=&gpio_nfc_cs,
};
static void furi_hal_spi_bus_handle_external_event_callback(FuriHalSpiBusHandle* handle, FuriHalSpiBusHandleEvent event) {
furi_hal_spi_bus_r_handle_event_callback(handle, event, &furi_hal_spi_preset_1edge_low_2m);
}
FuriHalSpiBusHandle furi_hal_spi_bus_handle_external = {
.bus=&furi_hal_spi_bus_r,
.callback=furi_hal_spi_bus_handle_external_event_callback,
.miso=&gpio_ext_pa6,
.mosi=&gpio_ext_pa7,
.sck=&gpio_ext_pb3,
.cs=&gpio_ext_pa4,
};
inline static void furi_hal_spi_bus_d_handle_event_callback(FuriHalSpiBusHandle* handle, FuriHalSpiBusHandleEvent event, const LL_SPI_InitTypeDef* preset) {
if (event == FuriHalSpiBusHandleEventInit) {
hal_gpio_write(handle->cs, true);
hal_gpio_init(handle->cs, GpioModeOutputPushPull, GpioPullUp, GpioSpeedVeryHigh);
hal_gpio_init_ex(handle->miso, GpioModeAltFunctionPushPull, GpioPullNo, GpioSpeedVeryHigh, GpioAltFn5SPI2);
hal_gpio_init_ex(handle->mosi, GpioModeAltFunctionPushPull, GpioPullNo, GpioSpeedVeryHigh, GpioAltFn5SPI2);
hal_gpio_init_ex(handle->sck, GpioModeAltFunctionPushPull, GpioPullNo, GpioSpeedVeryHigh, GpioAltFn5SPI2);
} else if (event == FuriHalSpiBusHandleEventDeinit) {
hal_gpio_write(handle->cs, true);
hal_gpio_init(handle->cs, GpioModeAnalog, GpioPullUp, GpioSpeedLow);
} else if (event == FuriHalSpiBusHandleEventActivate) {
LL_SPI_Init(handle->bus->spi, (LL_SPI_InitTypeDef*)preset);
LL_SPI_SetRxFIFOThreshold(handle->bus->spi, LL_SPI_RX_FIFO_TH_QUARTER);
LL_SPI_Enable(handle->bus->spi);
hal_gpio_write(handle->cs, false);
} else if (event == FuriHalSpiBusHandleEventDeactivate) {
hal_gpio_write(handle->cs, true);
LL_SPI_Disable(handle->bus->spi);
}
}
static void furi_hal_spi_bus_handle_display_event_callback(FuriHalSpiBusHandle* handle, FuriHalSpiBusHandleEvent event) {
furi_hal_spi_bus_d_handle_event_callback(handle, event, &furi_hal_spi_preset_1edge_low_4m);
}
FuriHalSpiBusHandle furi_hal_spi_bus_handle_display = {
.bus=&furi_hal_spi_bus_d,
.callback=furi_hal_spi_bus_handle_display_event_callback,
.miso=&gpio_spi_d_miso,
.mosi=&gpio_spi_d_mosi,
.sck=&gpio_spi_d_sck,
.cs=&gpio_display_cs,
};
static void furi_hal_spi_bus_handle_sd_fast_event_callback(FuriHalSpiBusHandle* handle, FuriHalSpiBusHandleEvent event) {
furi_hal_spi_bus_d_handle_event_callback(handle, event, &furi_hal_spi_preset_1edge_low_16m);
}
FuriHalSpiBusHandle furi_hal_spi_bus_handle_sd_fast = {
.bus=&furi_hal_spi_bus_d,
.callback=furi_hal_spi_bus_handle_sd_fast_event_callback,
.miso=&gpio_spi_d_miso,
.mosi=&gpio_spi_d_mosi,
.sck=&gpio_spi_d_sck,
.cs=&gpio_sdcard_cs,
};
static void furi_hal_spi_bus_handle_sd_slow_event_callback(FuriHalSpiBusHandle* handle, FuriHalSpiBusHandleEvent event) {
furi_hal_spi_bus_d_handle_event_callback(handle, event, &furi_hal_spi_preset_1edge_low_2m);
}
FuriHalSpiBusHandle furi_hal_spi_bus_handle_sd_slow = {
.bus=&furi_hal_spi_bus_d,
.callback=furi_hal_spi_bus_handle_sd_slow_event_callback,
.miso=&gpio_spi_d_miso,
.mosi=&gpio_spi_d_mosi,
.sck=&gpio_spi_d_sck,
.cs=&gpio_sdcard_cs,
};