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241 lines
6.2 KiB
C
241 lines
6.2 KiB
C
/*
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* Copyright 2024 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "board/board.h"
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#include "drivers/i2c_definitions.h"
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#include "drivers/stm32f2/dma_definitions.h"
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#include "drivers/stm32f2/i2c_hal_definitions.h"
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#include "drivers/stm32f2/uart_definitions.h"
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#include "drivers/voltage_monitor.h"
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// DMA Controllers
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static DMAControllerState s_dma1_state;
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static DMAController DMA1_DEVICE = {
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.state = &s_dma1_state,
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.periph = DMA1,
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.rcc_bit = RCC_AHB1Periph_DMA1,
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};
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static DMAControllerState s_dma2_state;
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static DMAController DMA2_DEVICE = {
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.state = &s_dma2_state,
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.periph = DMA2,
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.rcc_bit = RCC_AHB1Periph_DMA2,
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};
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// DMA Streams
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CREATE_DMA_STREAM(1, 1); // DMA1_STREAM1_DEVICE - Debug UART RX
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CREATE_DMA_STREAM(1, 4); // DMA1_STREAM4_DEVICE - Sharp SPI TX
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// DMA Requests
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static DMARequestState s_dbg_uart_dma_request_state;
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static DMARequest DBG_UART_RX_DMA_REQUEST = {
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.state = &s_dbg_uart_dma_request_state,
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.stream = &DMA1_STREAM1_DEVICE,
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.channel = 4,
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.irq_priority = IRQ_PRIORITY_INVALID, // no interrupts
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.priority = DMARequestPriority_High,
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.type = DMARequestType_PeripheralToMemory,
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.data_size = DMARequestDataSize_Byte,
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};
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static DMARequestState s_sharp_spi_tx_dma_request_state;
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static DMARequest SHARP_SPI_TX_DMA_REQUEST = {
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.state = &s_sharp_spi_tx_dma_request_state,
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.stream = &DMA1_STREAM4_DEVICE,
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.channel = 0,
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.irq_priority = 0x0f,
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.priority = DMARequestPriority_VeryHigh,
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.type = DMARequestType_MemoryToPeripheral,
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.data_size = DMARequestDataSize_Byte,
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};
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DMARequest * const SHARP_SPI_TX_DMA = &SHARP_SPI_TX_DMA_REQUEST;
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// UART DEVICES
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#if TARGET_QEMU
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static UARTDeviceState s_qemu_uart_state;
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static UARTDevice QEMU_UART_DEVICE = {
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.state = &s_qemu_uart_state,
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// GPIO? Where we're going, we don't need GPIO. (connected to QEMU)
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.periph = USART2,
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.irq_channel = USART2_IRQn,
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.irq_priority = 13,
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.rcc_apb_periph = RCC_APB1Periph_USART2
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};
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UARTDevice * const QEMU_UART = &QEMU_UART_DEVICE;
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IRQ_MAP(USART2, uart_irq_handler, QEMU_UART);
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#endif
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static UARTDeviceState s_dbg_uart_state;
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static UARTDevice DBG_UART_DEVICE = {
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.state = &s_dbg_uart_state,
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.tx_gpio = {
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.gpio = GPIOC,
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.gpio_pin = GPIO_Pin_10,
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.gpio_pin_source = GPIO_PinSource10,
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.gpio_af = GPIO_AF_USART3
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},
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.rx_gpio = {
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.gpio = GPIOC,
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.gpio_pin = GPIO_Pin_11,
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.gpio_pin_source = GPIO_PinSource11,
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.gpio_af = GPIO_AF_USART3
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},
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.periph = USART3,
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.irq_channel = USART3_IRQn,
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.irq_priority = 13,
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.rcc_apb_periph = RCC_APB1Periph_USART3,
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.rx_dma = &DBG_UART_RX_DMA_REQUEST
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};
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UARTDevice * const DBG_UART = &DBG_UART_DEVICE;
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IRQ_MAP(USART3, uart_irq_handler, DBG_UART);
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// I2C DEVICES
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static I2CBusState I2C_MAIN_BUS_STATE = {};
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static const I2CBusHal I2C_MAIN_BUS_HAL = {
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.i2c = I2C1,
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.clock_ctrl = RCC_APB1Periph_I2C1,
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.clock_speed = 400000,
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.duty_cycle = I2CDutyCycle_16_9,
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.ev_irq_channel = I2C1_EV_IRQn,
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.er_irq_channel = I2C1_ER_IRQn,
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};
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static const I2CBus I2C_MAIN_BUS = {
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.state = &I2C_MAIN_BUS_STATE,
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.hal = &I2C_MAIN_BUS_HAL,
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.scl_gpio = {
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.gpio = GPIOB,
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.gpio_pin = GPIO_Pin_8,
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.gpio_pin_source = GPIO_PinSource8,
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.gpio_af = GPIO_AF_I2C1
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},
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.sda_gpio = {
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.gpio = GPIOB,
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.gpio_pin = GPIO_Pin_7,
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.gpio_pin_source = GPIO_PinSource7,
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.gpio_af = GPIO_AF_I2C1
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},
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.stop_mode_inhibitor = InhibitorI2C1,
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.name = "I2C_MAIN"
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};
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extern void i2c_rail_ctl_pin(I2CBus *device, bool enable);
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static I2CBusState I2C_2V5_BUS_STATE = {};
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static const I2CBusHal I2C_2V5_BUS_HAL = {
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.i2c = I2C2,
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.clock_ctrl = RCC_APB1Periph_I2C2,
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.clock_speed = 400000,
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.duty_cycle = I2CDutyCycle_2,
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.ev_irq_channel = I2C2_EV_IRQn,
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.er_irq_channel = I2C2_ER_IRQn,
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};
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static const I2CBus I2C_2V5_BUS = {
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.state = &I2C_2V5_BUS_STATE,
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.hal = &I2C_2V5_BUS_HAL,
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.scl_gpio = {
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.gpio = GPIOB,
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.gpio_pin = GPIO_Pin_10,
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.gpio_pin_source = GPIO_PinSource10,
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.gpio_af = GPIO_AF_I2C2
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},
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.sda_gpio = {
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.gpio = GPIOB,
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.gpio_pin = GPIO_Pin_11,
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.gpio_pin_source = GPIO_PinSource11,
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.gpio_af = GPIO_AF_I2C2
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},
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.stop_mode_inhibitor = InhibitorI2C2,
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.rail_gpio = {
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.gpio = GPIOH,
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.gpio_pin = GPIO_Pin_0,
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.active_high = true
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},
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.rail_ctl_fn = i2c_rail_ctl_pin,
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.name = "I2C_2V5"
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};
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static const I2CSlavePort I2C_SLAVE_LIS3DH = {
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.bus = &I2C_MAIN_BUS,
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.address = 0x32
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};
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static const I2CSlavePort I2C_SLAVE_MFI = {
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.bus = &I2C_2V5_BUS,
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.address = 0x20
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};
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static const I2CSlavePort I2C_SLAVE_MAG3110 = {
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.bus = &I2C_2V5_BUS,
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.address = 0x1C
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};
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I2CSlavePort * const I2C_LIS3DH = &I2C_SLAVE_LIS3DH;
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I2CSlavePort * const I2C_MFI = &I2C_SLAVE_MFI;
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I2CSlavePort * const I2C_MAG3110 = &I2C_SLAVE_MAG3110;
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IRQ_MAP(I2C1_EV, i2c_hal_event_irq_handler, &I2C_MAIN_BUS);
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IRQ_MAP(I2C1_ER, i2c_hal_error_irq_handler, &I2C_MAIN_BUS);
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IRQ_MAP(I2C2_EV, i2c_hal_event_irq_handler, &I2C_2V5_BUS);
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IRQ_MAP(I2C2_ER, i2c_hal_error_irq_handler, &I2C_2V5_BUS);
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// VOLTAGE MONITOR DEVICES
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static const VoltageMonitorDevice VOLTAGE_MONITOR_ALS_DEVICE = {
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.adc = ADC2,
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.adc_channel = ADC_Channel_12,
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.clock_ctrl = RCC_APB2Periph_ADC2,
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.input = {
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.gpio = GPIOC,
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.gpio_pin = GPIO_Pin_2,
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},
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};
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static const VoltageMonitorDevice VOLTAGE_MONITOR_BATTERY_DEVICE = {
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.adc = ADC2,
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.adc_channel = ADC_Channel_10,
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.clock_ctrl = RCC_APB2Periph_ADC2,
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.input = {
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.gpio = GPIOC,
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.gpio_pin = GPIO_Pin_0,
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},
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};
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VoltageMonitorDevice * const VOLTAGE_MONITOR_ALS = &VOLTAGE_MONITOR_ALS_DEVICE;
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VoltageMonitorDevice * const VOLTAGE_MONITOR_BATTERY = &VOLTAGE_MONITOR_BATTERY_DEVICE;
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void board_early_init(void) {
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}
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void board_init(void) {
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i2c_init(&I2C_MAIN_BUS);
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i2c_init(&I2C_2V5_BUS);
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voltage_monitor_device_init(VOLTAGE_MONITOR_ALS);
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voltage_monitor_device_init(VOLTAGE_MONITOR_BATTERY);
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}
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