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+/*
+ * This file is part of the Black Magic Debug project.
+ *
+ * Copyright (C) 2011 Black Sphere Technologies Ltd.
+ * Written by Gareth McMullin <gareth@blacksphere.co.nz>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* This file implements the platform specific functions for the STM32
+ * implementation.
+ */
+#ifndef __PLATFORM_H
+#define __PLATFORM_H
+
+#include <libopencm3/stm32/f1/gpio.h>
+#include <libopencm3/usb/usbd.h>
+
+#include <setjmp.h>
+#include <alloca.h>
+
+#include "gdb_packet.h"
+
+#define INLINE_GPIO
+#define CDCACM_PACKET_SIZE 64
+#define PLATFORM_HAS_TRACESWO
+
+extern usbd_device *usbdev;
+#define CDCACM_GDB_ENDPOINT 1
+#define CDCACM_UART_ENDPOINT 3
+
+/* Important pin mappings for STM32 implementation:
+ *
+ * LED0 = PB2 (Yellow LED : Running)
+ * LED1 = PB10 (Yellow LED : Idle)
+ * LED2 = PB11 (Red LED : Error)
+ *
+ * TPWR = RB0 (input) -- analogue on mini design ADC1, ch8
+ * nTRST = PB1
+ * SRST_OUT = PA2
+ * TDI = PA3
+ * TMS = PA4 (input for SWDP)
+ * TCK = PA5
+ * TDO = PA6 (input)
+ * nSRST = PA7 (input)
+ *
+ * USB cable pull-up: PA8
+ * USB VBUS detect: PB13 -- New on mini design.
+ * Enable pull up for compatibility.
+ * Force DFU mode button: PB12
+ */
+
+/* Hardware definitions... */
+#define JTAG_PORT GPIOA
+#define TDI_PORT JTAG_PORT
+#define TMS_PORT JTAG_PORT
+#define TCK_PORT JTAG_PORT
+#define TDO_PORT JTAG_PORT
+#define TDI_PIN GPIO3
+#define TMS_PIN GPIO4
+#define TCK_PIN GPIO5
+#define TDO_PIN GPIO6
+
+#define SWDIO_PORT JTAG_PORT
+#define SWCLK_PORT JTAG_PORT
+#define SWDIO_PIN TMS_PIN
+#define SWCLK_PIN TCK_PIN
+
+#define TRST_PORT GPIOB
+#define TRST_PIN GPIO1
+#define SRST_PORT GPIOA
+#define SRST_PIN GPIO2
+
+#define USB_PU_PORT GPIOA
+#define USB_PU_PIN GPIO8
+
+#define USB_VBUS_PORT GPIOB
+#define USB_VBUS_PIN GPIO13
+#define USB_VBUS_IRQ NVIC_EXTI15_10_IRQ
+
+#define LED_PORT GPIOB
+#define LED_PORT_UART GPIOB
+#define LED_UART GPIO2
+#define LED_IDLE_RUN GPIO10
+#define LED_ERROR GPIO11
+
+#define USB_DRIVER stm32f103_usb_driver
+#define USB_IRQ NVIC_USB_LP_CAN_RX0_IRQ
+#define USB_ISR usb_lp_can_rx0_isr
+/* Interrupt priorities. Low numbers are high priority.
+ * For now USART1 preempts USB which may spin while buffer is drained.
+ * TIM3 is used for traceswo capture and must be highest priority.
+ */
+#define IRQ_PRI_USB (2 << 4)
+#define IRQ_PRI_USBUSART (1 << 4)
+#define IRQ_PRI_USB_VBUS (14 << 4)
+#define IRQ_PRI_TRACE (0 << 4)
+
+#define USBUSART USART1
+#define USBUSART_CR1 USART1_CR1
+#define USBUSART_IRQ NVIC_USART1_IRQ
+#define USBUSART_APB_ENR RCC_APB2ENR
+#define USBUSART_CLK_ENABLE RCC_APB2ENR_USART1EN
+#define USBUSART_PORT GPIOA
+#define USBUSART_TX_PIN GPIO9
+#define USBUSART_ISR usart1_isr
+
+#define TRACE_TIM TIM3
+#define TRACE_TIM_CLK_EN() rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_TIM3EN)
+#define TRACE_IRQ NVIC_TIM3_IRQ
+#define TRACE_ISR tim3_isr
+
+#define DEBUG(...)
+
+extern uint8_t running_status;
+extern volatile uint32_t timeout_counter;
+
+extern jmp_buf fatal_error_jmpbuf;
+
+extern const char *morse_msg;
+
+#define gpio_set_val(port, pin, val) do { \
+ if(val) \
+ gpio_set((port), (pin)); \
+ else \
+ gpio_clear((port), (pin)); \
+} while(0)
+
+#define SET_RUN_STATE(state) {running_status = (state);}
+#define SET_IDLE_STATE(state) {gpio_set_val(LED_PORT, LED_IDLE_RUN, state);}
+#define SET_ERROR_STATE(state) {gpio_set_val(LED_PORT, LED_ERROR, state);}
+
+#define PLATFORM_SET_FATAL_ERROR_RECOVERY() {setjmp(fatal_error_jmpbuf);}
+#define PLATFORM_FATAL_ERROR(error) { \
+ if(running_status) gdb_putpacketz("X1D"); \
+ else gdb_putpacketz("EFF"); \
+ running_status = 0; \
+ target_list_free(); \
+ morse("TARGET LOST.", 1); \
+ longjmp(fatal_error_jmpbuf, (error)); \
+}
+
+int platform_init(void);
+void morse(const char *msg, char repeat);
+const char *platform_target_voltage(void);
+int platform_hwversion(void);
+void platform_delay(uint32_t delay);
+
+/* <cdcacm.c> */
+void cdcacm_init(void);
+/* Returns current usb configuration, or 0 if not configured. */
+int cdcacm_get_config(void);
+int cdcacm_get_dtr(void);
+
+/* <platform.h> */
+void uart_usb_buf_drain(uint8_t ep);
+
+/* Use newlib provided integer only stdio functions */
+#define sscanf siscanf
+#define sprintf siprintf
+#define vasprintf vasiprintf
+
+#ifdef INLINE_GPIO
+static inline void _gpio_set(u32 gpioport, u16 gpios)
+{
+ GPIO_BSRR(gpioport) = gpios;
+}
+#define gpio_set _gpio_set
+
+static inline void _gpio_clear(u32 gpioport, u16 gpios)
+{
+ GPIO_BRR(gpioport) = gpios;
+}
+#define gpio_clear _gpio_clear
+
+static inline u16 _gpio_get(u32 gpioport, u16 gpios)
+{
+ return (u16)GPIO_IDR(gpioport) & gpios;
+}
+#define gpio_get _gpio_get
+#endif
+
+#endif
+
+#define disconnect_usb() gpio_set_mode(USB_PU_PORT, GPIO_MODE_INPUT, 0, USB_PU_PIN);
+void assert_boot_pin(void);
+void setup_vbus_irq(void);