Import of the watch repository from Pebble

platform/robert/boot/src/board/board.h

@@ -0,0 +1,105 @@
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "display.h"
+
+#include "drivers/button_id.h"
+
+#include "stm32f7xx.h"
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#define GPIO_Port_NULL ((GPIO_TypeDef *) 0)
+#define GPIO_Pin_NULL ((uint16_t)0x0000)
+
+// This is generated in order to faciliate the check within the IRQ_MAP macro below
+enum {
+#define IRQ_DEF(num, irq) IS_VALID_IRQ__##irq,
+#include "irq_stm32f7.def"
+#undef IRQ_DEF
+};
+
+//! Creates a trampoline to the interrupt handler defined within the driver
+#define IRQ_MAP(irq, handler, device) \
+  void irq##_IRQHandler(void) { \
+    handler(device); \
+  } \
+  _Static_assert(IS_VALID_IRQ__##irq || true, "(See comment below)")
+/*
+ * The above static assert checks that the requested IRQ is valid by checking that the enum
+ * value (generated above) is declared. The static assert itself will not trip, but you will get
+ * a compilation error from that line if the IRQ does not exist within irq_stm32*.def.
+ */
+
+typedef struct {
+  GPIO_TypeDef* const gpio; ///< One of GPIOX. For example, GPIOA.
+  const uint32_t gpio_pin; ///< One of GPIO_Pin_X.
+} InputConfig;
+
+typedef struct {
+  GPIO_TypeDef* const gpio; ///< One of GPIOX. For example, GPIOA.
+  const uint32_t gpio_pin; ///< One of GPIO_Pin_X.
+  bool active_high; ///< Pin is active high or active low
+} OutputConfig;
+
+//! Alternate function pin configuration
+//! Used to configure a pin for use by a peripheral
+typedef struct {
+  GPIO_TypeDef* const gpio; ///< One of GPIOX. For example, GPIOA.
+  const uint32_t gpio_pin; ///< One of GPIO_Pin_X.
+  const uint16_t gpio_pin_source; ///< One of GPIO_PinSourceX.
+  const uint8_t  gpio_af; ///< One of GPIO_AF_X
+} AfConfig;
+
+typedef struct {
+  InputConfig input;
+  GPIOPuPd_TypeDef pupd;
+} ButtonConfig;
+
+// Button Configuration
+/////////////////////////////////////////////////////////////////////////////
+typedef struct {
+  const ButtonConfig buttons[NUM_BUTTONS];
+} BoardConfigButton;
+
+// Power Configuration
+/////////////////////////////////////////////////////////////////////////////
+typedef struct {
+  //! Voltage rail control lines
+  const OutputConfig rail_4V5_ctrl;
+  const OutputConfig rail_6V6_ctrl;
+} BoardConfigPower;
+
+typedef struct {
+  OutputConfig reset_gpio;
+} BoardConfigFlash;
+
+typedef struct {
+  const OutputConfig power_en; //< Enable power supply to the accessory connector.
+} BoardConfigAccessory;
+
+typedef const struct SPIBus SPIBus;
+typedef const struct SPISlavePort SPISlavePort;
+typedef const struct I2CBus I2CBus;
+typedef const struct I2CSlavePort I2CSlavePort;
+typedef const struct ICE40LPDevice ICE40LPDevice;
+
+void board_init(void);
+
+#include "board_definitions.h"