mirror of
https://github.com/DarkFlippers/unleashed-firmware.git
synced 2024-12-24 13:52:38 +03:00
1fdc5f2950
* iButton, FuriHal: add onewire HAL, migrate to LL, add missing critical section guards * FuriHal: rename onewire to ibutton, cleanup RCC domain usage, fix ibutton and rfid * FuriHal: cleanup RCC usage
158 lines
6.3 KiB
C
158 lines
6.3 KiB
C
#include "furi_hal_i2c_config.h"
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#include <furi_hal_resources.h>
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#include <furi_hal_version.h>
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/** Timing register value is computed with the STM32CubeMX Tool,
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* Standard Mode @100kHz with I2CCLK = 64 MHz,
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* rise time = 0ns, fall time = 0ns
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*/
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#define FURI_HAL_I2C_CONFIG_POWER_I2C_TIMINGS_100 0x10707DBC
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/** Timing register value is computed with the STM32CubeMX Tool,
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* Fast Mode @400kHz with I2CCLK = 64 MHz,
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* rise time = 0ns, fall time = 0ns
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*/
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#define FURI_HAL_I2C_CONFIG_POWER_I2C_TIMINGS_400 0x00602173
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osMutexId_t furi_hal_i2c_bus_power_mutex = NULL;
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static void furi_hal_i2c_bus_power_event(FuriHalI2cBus* bus, FuriHalI2cBusEvent event) {
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if(event == FuriHalI2cBusEventInit) {
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furi_hal_i2c_bus_power_mutex = osMutexNew(NULL);
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FURI_CRITICAL_ENTER();
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LL_RCC_SetI2CClockSource(LL_RCC_I2C1_CLKSOURCE_PCLK1);
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LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_I2C1);
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FURI_CRITICAL_EXIT();
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bus->current_handle = NULL;
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} else if(event == FuriHalI2cBusEventDeinit) {
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osMutexDelete(furi_hal_i2c_bus_power_mutex);
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} else if(event == FuriHalI2cBusEventLock) {
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furi_check(osMutexAcquire(furi_hal_i2c_bus_power_mutex, osWaitForever) == osOK);
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} else if(event == FuriHalI2cBusEventUnlock) {
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furi_check(osMutexRelease(furi_hal_i2c_bus_power_mutex) == osOK);
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} else if(event == FuriHalI2cBusEventActivate) {
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FURI_CRITICAL_ENTER();
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LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_I2C1);
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FURI_CRITICAL_EXIT();
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} else if(event == FuriHalI2cBusEventDeactivate) {
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FURI_CRITICAL_ENTER();
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LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_I2C1);
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FURI_CRITICAL_EXIT();
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}
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}
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FuriHalI2cBus furi_hal_i2c_bus_power = {
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.i2c = I2C1,
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.callback = furi_hal_i2c_bus_power_event,
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};
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osMutexId_t furi_hal_i2c_bus_external_mutex = NULL;
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static void furi_hal_i2c_bus_external_event(FuriHalI2cBus* bus, FuriHalI2cBusEvent event) {
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if(event == FuriHalI2cBusEventActivate) {
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FURI_CRITICAL_ENTER();
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LL_RCC_SetI2CClockSource(LL_RCC_I2C3_CLKSOURCE_PCLK1);
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LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_I2C3);
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FURI_CRITICAL_EXIT();
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} else if(event == FuriHalI2cBusEventDeactivate) {
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FURI_CRITICAL_ENTER();
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LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_I2C3);
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FURI_CRITICAL_EXIT();
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}
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}
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FuriHalI2cBus furi_hal_i2c_bus_external = {
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.i2c = I2C3,
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.callback = furi_hal_i2c_bus_external_event,
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};
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void furi_hal_i2c_bus_handle_power_event(
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FuriHalI2cBusHandle* handle,
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FuriHalI2cBusHandleEvent event) {
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if(event == FuriHalI2cBusHandleEventActivate) {
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hal_gpio_init_ex(
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&gpio_i2c_power_sda,
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GpioModeAltFunctionOpenDrain,
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GpioPullNo,
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GpioSpeedLow,
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GpioAltFn4I2C1);
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hal_gpio_init_ex(
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&gpio_i2c_power_scl,
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GpioModeAltFunctionOpenDrain,
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GpioPullNo,
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GpioSpeedLow,
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GpioAltFn4I2C1);
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LL_I2C_InitTypeDef I2C_InitStruct = {0};
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I2C_InitStruct.PeripheralMode = LL_I2C_MODE_I2C;
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I2C_InitStruct.AnalogFilter = LL_I2C_ANALOGFILTER_ENABLE;
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I2C_InitStruct.DigitalFilter = 0;
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I2C_InitStruct.OwnAddress1 = 0;
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I2C_InitStruct.TypeAcknowledge = LL_I2C_ACK;
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I2C_InitStruct.OwnAddrSize = LL_I2C_OWNADDRESS1_7BIT;
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if(furi_hal_version_get_hw_version() > 10) {
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I2C_InitStruct.Timing = FURI_HAL_I2C_CONFIG_POWER_I2C_TIMINGS_400;
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} else {
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I2C_InitStruct.Timing = FURI_HAL_I2C_CONFIG_POWER_I2C_TIMINGS_100;
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}
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LL_I2C_Init(handle->bus->i2c, &I2C_InitStruct);
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// I2C is enabled at this point
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LL_I2C_EnableAutoEndMode(handle->bus->i2c);
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LL_I2C_SetOwnAddress2(handle->bus->i2c, 0, LL_I2C_OWNADDRESS2_NOMASK);
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LL_I2C_DisableOwnAddress2(handle->bus->i2c);
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LL_I2C_DisableGeneralCall(handle->bus->i2c);
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LL_I2C_EnableClockStretching(handle->bus->i2c);
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} else if(event == FuriHalI2cBusHandleEventDeactivate) {
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LL_I2C_Disable(handle->bus->i2c);
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hal_gpio_write(&gpio_i2c_power_sda, 1);
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hal_gpio_write(&gpio_i2c_power_scl, 1);
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hal_gpio_init_ex(
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&gpio_i2c_power_sda, GpioModeAnalog, GpioPullNo, GpioSpeedLow, GpioAltFnUnused);
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hal_gpio_init_ex(
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&gpio_i2c_power_scl, GpioModeAnalog, GpioPullNo, GpioSpeedLow, GpioAltFnUnused);
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}
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}
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FuriHalI2cBusHandle furi_hal_i2c_handle_power = {
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.bus = &furi_hal_i2c_bus_power,
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.callback = furi_hal_i2c_bus_handle_power_event,
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};
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void furi_hal_i2c_bus_handle_external_event(
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FuriHalI2cBusHandle* handle,
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FuriHalI2cBusHandleEvent event) {
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if(event == FuriHalI2cBusHandleEventActivate) {
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hal_gpio_init_ex(
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&gpio_ext_pc0, GpioModeAltFunctionOpenDrain, GpioPullNo, GpioSpeedLow, GpioAltFn4I2C3);
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hal_gpio_init_ex(
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&gpio_ext_pc1, GpioModeAltFunctionOpenDrain, GpioPullNo, GpioSpeedLow, GpioAltFn4I2C3);
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LL_I2C_InitTypeDef I2C_InitStruct = {0};
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I2C_InitStruct.PeripheralMode = LL_I2C_MODE_I2C;
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I2C_InitStruct.AnalogFilter = LL_I2C_ANALOGFILTER_ENABLE;
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I2C_InitStruct.DigitalFilter = 0;
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I2C_InitStruct.OwnAddress1 = 0;
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I2C_InitStruct.TypeAcknowledge = LL_I2C_ACK;
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I2C_InitStruct.OwnAddrSize = LL_I2C_OWNADDRESS1_7BIT;
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I2C_InitStruct.Timing = FURI_HAL_I2C_CONFIG_POWER_I2C_TIMINGS_100;
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LL_I2C_Init(handle->bus->i2c, &I2C_InitStruct);
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// I2C is enabled at this point
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LL_I2C_EnableAutoEndMode(handle->bus->i2c);
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LL_I2C_SetOwnAddress2(handle->bus->i2c, 0, LL_I2C_OWNADDRESS2_NOMASK);
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LL_I2C_DisableOwnAddress2(handle->bus->i2c);
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LL_I2C_DisableGeneralCall(handle->bus->i2c);
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LL_I2C_EnableClockStretching(handle->bus->i2c);
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} else if(event == FuriHalI2cBusHandleEventDeactivate) {
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LL_I2C_Disable(handle->bus->i2c);
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hal_gpio_write(&gpio_ext_pc0, 1);
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hal_gpio_write(&gpio_ext_pc1, 1);
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hal_gpio_init_ex(&gpio_ext_pc0, GpioModeAnalog, GpioPullNo, GpioSpeedLow, GpioAltFnUnused);
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hal_gpio_init_ex(&gpio_ext_pc1, GpioModeAnalog, GpioPullNo, GpioSpeedLow, GpioAltFnUnused);
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}
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}
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FuriHalI2cBusHandle furi_hal_i2c_handle_external = {
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.bus = &furi_hal_i2c_bus_external,
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.callback = furi_hal_i2c_bus_handle_external_event,
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};
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