mirror of
https://github.com/google/pebble.git
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428 lines
12 KiB
C
428 lines
12 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/exti.h"
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#include "drivers/flash/qspi_flash_definitions.h"
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#include "drivers/i2c_definitions.h"
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#include "drivers/qspi_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/spi_definitions.h"
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#include "drivers/stm32f2/uart_definitions.h"
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#include "drivers/temperature.h"
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#include "drivers/voltage_monitor.h"
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#include "flash_region/flash_region.h"
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#include "util/units.h"
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#define DIALOG_SPI_DMA_PRIORITY (0x0b)
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// Make sure that the DMA IRQ is handled before EXTI:
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// See comments in host/host_transport.c prv_int_exti_cb()
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_Static_assert(DIALOG_SPI_DMA_PRIORITY < EXTI_PRIORITY, "Dialog SPI DMA priority too low!");
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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, 4); // DMA2_STREAM2_DEVICE - Sharp SPI TX
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CREATE_DMA_STREAM(2, 1); // DMA1_STREAM2_DEVICE - Accessory UART RX
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CREATE_DMA_STREAM(2, 2); // DMA1_STREAM1_DEVICE - Debug UART RX
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CREATE_DMA_STREAM(2, 3); // DMA2_STREAM0_DEVICE - Dialog SPI RX
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CREATE_DMA_STREAM(2, 5); // DMA2_STREAM1_DEVICE - Dialog SPI TX
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CREATE_DMA_STREAM(2, 6); // DMA2_STREAM4_DEVICE - DFSDM
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CREATE_DMA_STREAM(2, 7); // DMA2_STREAM7_DEVICE - QSPI
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// DMA Requests
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// - On DMA1 we just have have "Sharp SPI TX" so just set its priority to "High" since it doesn't
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// matter.
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// - On DMA2 we have "Accessory UART RX", "Debug UART RX", "Dialog SPI RX", "DIALOG SPI TX",
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// "DFSDM", and "QSPI". We want "DFSDM", "Accessory UART RX", "Debug UART RX", and "Dialog SPI RX"
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// to have a very high priority because their peripheral buffers may overflow if the DMA stream
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// doesn't read from them in a while. After that, give the remaining "Dialog SPI TX" and "QSPI"
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// both a high priority.
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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_High,
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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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static DMARequestState s_accessory_uart_dma_request_state;
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static DMARequest ACCESSORY_UART_RX_DMA_REQUEST = {
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.state = &s_accessory_uart_dma_request_state,
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.stream = &DMA2_STREAM1_DEVICE,
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.channel = 5,
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.irq_priority = IRQ_PRIORITY_INVALID, // no interrupts
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.priority = DMARequestPriority_VeryHigh,
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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_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 = &DMA2_STREAM2_DEVICE,
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.channel = 4,
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.irq_priority = IRQ_PRIORITY_INVALID, // no interrupts
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.priority = DMARequestPriority_VeryHigh,
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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_dialog_spi_rx_dma_request_state;
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static DMARequest DIALOG_SPI_RX_DMA_REQUEST = {
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.state = &s_dialog_spi_rx_dma_request_state,
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.stream = &DMA2_STREAM3_DEVICE,
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.channel = 2,
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.irq_priority = DIALOG_SPI_DMA_PRIORITY,
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.priority = DMARequestPriority_VeryHigh,
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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_dialog_spi_tx_dma_request_state;
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static DMARequest DIALOG_SPI_TX_DMA_REQUEST = {
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.state = &s_dialog_spi_tx_dma_request_state,
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.stream = &DMA2_STREAM5_DEVICE,
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.channel = 5,
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.irq_priority = DIALOG_SPI_DMA_PRIORITY,
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.priority = DMARequestPriority_High,
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.type = DMARequestType_MemoryToPeripheral,
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.data_size = DMARequestDataSize_Byte,
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};
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static DMARequestState s_dfsdm_dma_request_state;
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static DMARequest DFSDM_DMA_REQUEST = {
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.state = &s_dfsdm_dma_request_state,
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.stream = &DMA2_STREAM6_DEVICE,
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.channel = 3,
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.irq_priority = 0x0f,
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.priority = DMARequestPriority_VeryHigh,
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.type = DMARequestType_PeripheralToMemory,
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.data_size = DMARequestDataSize_Word,
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};
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static DMARequestState s_qspi_dma_request_state;
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static DMARequest QSPI_DMA_REQUEST = {
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.state = &s_qspi_dma_request_state,
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.stream = &DMA2_STREAM7_DEVICE,
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.channel = 3,
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.irq_priority = 0x0f,
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.priority = DMARequestPriority_High,
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.type = DMARequestType_PeripheralToMemory,
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.data_size = DMARequestDataSize_Word,
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};
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// UART DEVICES
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static UARTDeviceState s_bt_bootrom_rx_uart_state;
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static UARTDevice BT_RX_BOOTROM_UART_DEVICE = {
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.state = &s_bt_bootrom_rx_uart_state,
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.periph = USART6,
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.rx_gpio = { GPIOA, GPIO_Pin_12, GPIO_PinSource12, GPIO_AF_USART6 },
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.rcc_apb_periph = RCC_APB2Periph_USART6,
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.tx_gpio = { 0 }
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};
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static UARTDeviceState s_bt_bootrom_tx_uart_state;
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static UARTDevice BT_TX_BOOTROM_UART_DEVICE = {
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.state = &s_bt_bootrom_tx_uart_state,
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.periph = USART2,
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.tx_gpio = { GPIOA, GPIO_Pin_2, GPIO_PinSource2, GPIO_AF_USART2 },
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.rcc_apb_periph = RCC_APB1Periph_USART2,
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.rx_gpio = { 0 }
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};
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UARTDevice * const BT_TX_BOOTROM_UART = &BT_TX_BOOTROM_UART_DEVICE;
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UARTDevice * const BT_RX_BOOTROM_UART = &BT_RX_BOOTROM_UART_DEVICE;
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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 = GPIOA,
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.gpio_pin = GPIO_Pin_9,
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.gpio_pin_source = GPIO_PinSource9,
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.gpio_af = GPIO_AF_USART1
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},
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.rx_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_USART1
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},
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.periph = USART1,
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.irq_channel = USART1_IRQn,
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.irq_priority = 13,
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.rcc_apb_periph = RCC_APB2Periph_USART1,
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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(USART1, uart_irq_handler, DBG_UART);
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static UARTDeviceState s_accessory_uart_state;
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static UARTDevice ACCESSORY_UART_DEVICE = {
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.state = &s_accessory_uart_state,
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.half_duplex = true,
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.tx_gpio = {
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.gpio = GPIOA,
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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_USART6
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},
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.periph = USART6,
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.irq_channel = USART6_IRQn,
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.irq_priority = 0xb,
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.rcc_apb_periph = RCC_APB2Periph_USART6,
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.rx_dma = &ACCESSORY_UART_RX_DMA_REQUEST
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};
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UARTDevice * const ACCESSORY_UART = &ACCESSORY_UART_DEVICE;
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IRQ_MAP(USART6, uart_irq_handler, ACCESSORY_UART);
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// I2C DEVICES
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static I2CBusState I2C_PMIC_HRM_BUS_STATE = {};
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static const I2CBusHal I2C_PMIC_HRM_BUS_HAL = {
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.i2c = I2C3,
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.clock_ctrl = RCC_APB1Periph_I2C3,
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.clock_speed = 400000,
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.duty_cycle = I2CDutyCycle_2,
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.ev_irq_channel = I2C3_EV_IRQn,
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.er_irq_channel = I2C3_ER_IRQn,
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};
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static const I2CBus I2C_PMIC_HRM_BUS = {
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.state = &I2C_PMIC_HRM_BUS_STATE,
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.hal = &I2C_PMIC_HRM_BUS_HAL,
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.scl_gpio = {
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.gpio = GPIOA,
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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_I2C3
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},
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.sda_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_AF9_I2C3
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},
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.stop_mode_inhibitor = InhibitorI2C3,
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.name = "I2C_PMIC"
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};
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static const I2CSlavePort I2C_SLAVE_AS3701B = {
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.bus = &I2C_PMIC_HRM_BUS,
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.address = 0x80
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};
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I2CSlavePort * const I2C_AS3701B = &I2C_SLAVE_AS3701B;
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IRQ_MAP(I2C3_EV, i2c_hal_event_irq_handler, &I2C_PMIC_HRM_BUS);
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IRQ_MAP(I2C3_ER, i2c_hal_error_irq_handler, &I2C_PMIC_HRM_BUS);
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// VOLTAGE MONITOR DEVICES
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static const VoltageMonitorDevice VOLTAGE_MONITOR_ALS_DEVICE = {
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.adc = ADC1,
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.adc_channel = ADC_Channel_13,
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.clock_ctrl = RCC_APB2Periph_ADC1,
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.input = {
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.gpio = GPIOC,
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.gpio_pin = GPIO_Pin_3,
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},
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};
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static const VoltageMonitorDevice VOLTAGE_MONITOR_BATTERY_DEVICE = {
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.adc = ADC1,
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.adc_channel = ADC_Channel_5,
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.clock_ctrl = RCC_APB2Periph_ADC1,
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.input = {
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.gpio = GPIOA,
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.gpio_pin = GPIO_Pin_5,
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},
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};
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static const VoltageMonitorDevice VOLTAGE_MONITOR_TEMPERATURE_DEVICE = {
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.adc = ADC1,
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.adc_channel = ADC_Channel_TempSensor,
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.clock_ctrl = RCC_APB2Periph_ADC1,
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// .input not applicable
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};
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const VoltageMonitorDevice * VOLTAGE_MONITOR_ALS = &VOLTAGE_MONITOR_ALS_DEVICE;
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const VoltageMonitorDevice * VOLTAGE_MONITOR_BATTERY = &VOLTAGE_MONITOR_BATTERY_DEVICE;
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const VoltageMonitorDevice * VOLTAGE_MONITOR_TEMPERATURE = &VOLTAGE_MONITOR_TEMPERATURE_DEVICE;
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// Temperature sensor
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// STM32F412 datasheet rev 2
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// Section 6.3.21
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TemperatureSensor const TEMPERATURE_SENSOR_DEVICE = {
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.voltage_monitor = &VOLTAGE_MONITOR_TEMPERATURE_DEVICE,
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.millivolts_ref = 760,
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.millidegrees_ref = 25000,
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.slope_numerator = 5,
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.slope_denominator = 2000,
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};
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TemperatureSensor * const TEMPERATURE_SENSOR = &TEMPERATURE_SENSOR_DEVICE;
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//
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// SPI Bus configuration
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//
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static SPIBusState DIALOG_SPI_BUS_STATE = { };
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static const SPIBus DIALOG_SPI_BUS = {
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.state = &DIALOG_SPI_BUS_STATE,
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.spi = SPI5,
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.spi_sclk = { GPIOB, GPIO_Pin_0, GPIO_PinSource0, GPIO_AF6_SPI5 },
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.spi_miso = { GPIOA, GPIO_Pin_12, GPIO_PinSource12, GPIO_AF6_SPI5 },
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.spi_mosi = { GPIOA, GPIO_Pin_10, GPIO_PinSource10, GPIO_AF6_SPI5 },
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.spi_sclk_speed = GPIO_Speed_50MHz,
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// DA14680_FS v1.4 page 89:
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// "In slave mode the internal SPI clock must be more than four times the SPIx_CLK"
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// The system clock is 16MHz, so don't use more than 4MHz.
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.spi_clock_speed_hz = MHZ_TO_HZ(4)
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};
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//
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// SPI Slave port configuration
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//
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static SPISlavePortState DIALOG_SPI_SLAVE_PORT_STATE = {};
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static SPISlavePort DIALOG_SPI_SLAVE_PORT = {
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.slave_state = &DIALOG_SPI_SLAVE_PORT_STATE,
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.spi_bus = &DIALOG_SPI_BUS,
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.spi_scs = { GPIOB, GPIO_Pin_1, false },
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.spi_direction = SpiDirection_2LinesFullDuplex,
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.spi_cpol = SpiCPol_Low,
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.spi_cpha = SpiCPha_1Edge,
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.spi_first_bit = SpiFirstBit_MSB,
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.rx_dma = &DIALOG_SPI_RX_DMA_REQUEST,
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.tx_dma = &DIALOG_SPI_TX_DMA_REQUEST
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};
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SPISlavePort * const DIALOG_SPI = &DIALOG_SPI_SLAVE_PORT;
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// QSPI
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static QSPIPortState s_qspi_port_state;
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static QSPIPort QSPI_PORT = {
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.state = &s_qspi_port_state,
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.clock_speed_hz = MHZ_TO_HZ(50),
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.auto_polling_interval = 16,
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.clock_ctrl = RCC_AHB3Periph_QSPI,
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.cs_gpio = {
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.gpio = GPIOB,
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.gpio_pin = GPIO_Pin_6,
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.gpio_pin_source = GPIO_PinSource6,
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.gpio_af = GPIO_AF10_QUADSPI,
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},
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.clk_gpio = {
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.gpio = GPIOB,
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.gpio_pin = GPIO_Pin_2,
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.gpio_pin_source = GPIO_PinSource2,
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.gpio_af = GPIO_AF9_QUADSPI,
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},
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.data_gpio = {
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{
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.gpio = GPIOC,
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.gpio_pin = GPIO_Pin_9,
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.gpio_pin_source = GPIO_PinSource9,
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.gpio_af = GPIO_AF9_QUADSPI,
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},
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{
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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_AF9_QUADSPI,
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},
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{
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.gpio = GPIOC,
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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_AF9_QUADSPI,
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},
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{
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.gpio = GPIOA,
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.gpio_pin = GPIO_Pin_1,
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.gpio_pin_source = GPIO_PinSource1,
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.gpio_af = GPIO_AF9_QUADSPI,
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},
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},
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.dma = &QSPI_DMA_REQUEST,
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};
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QSPIPort * const QSPI = &QSPI_PORT;
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static QSPIFlashState s_qspi_flash_state;
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static QSPIFlash QSPI_FLASH_DEVICE = {
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.state = &s_qspi_flash_state,
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.qspi = &QSPI_PORT,
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.default_fast_read_ddr_enabled = false,
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.reset_gpio = { GPIO_Port_NULL },
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};
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QSPIFlash * const QSPI_FLASH = &QSPI_FLASH_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_PMIC_HRM_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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qspi_init(QSPI, BOARD_NOR_FLASH_SIZE);
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}
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