target: Add Koshin board support

Author: RPG-7

src/stm32f103/koshin/config.h

@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2023, Xiaoyu Hong
+ *
+ * Permission to use, copy, modify, and/or distribute this software
+ * for any purpose with or without fee is hereby granted, provided
+ * that the above copyright notice and this permission notice
+ * appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+ * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef CONFIG_H_INCLUDED
+#define CONFIG_H_INCLUDED
+
+#ifndef APP_BASE_ADDRESS
+#define APP_BASE_ADDRESS (0x08000000 + BOOTLOADER_OFFSET)
+#endif
+#ifndef FLASH_SIZE_OVERRIDE
+#define FLASH_SIZE_OVERRIDE 0x20000
+#endif
+#ifndef FLASH_PAGE_SIZE
+#define FLASH_PAGE_SIZE  1024
+#endif
+#ifndef DFU_UPLOAD_AVAILABLE
+#define DFU_UPLOAD_AVAILABLE 1
+#endif
+#ifndef DFU_DOWNLOAD_AVAILABLE
+#define DFU_DOWNLOAD_AVAILABLE 1
+#endif
+
+#ifndef HAVE_LED
+#define HAVE_LED 1
+#endif
+#ifndef LED_ACTIVE_HIGH
+#define LED_ACTIVE_HIGH 1
+#endif
+#ifndef LED_OPEN_DRAIN
+#define LED_OPEN_DRAIN 0
+#endif
+#ifndef LED_GPIO_PORT
+#define LED_GPIO_PORT GPIOB
+#endif
+#ifndef LED_GPIO_PIN
+#define LED_GPIO_PIN GPIO5
+#endif
+
+#ifndef HAVE_BUTTON
+#define HAVE_BUTTON 1
+#endif
+#ifndef BUTTON_ACTIVE_HIGH
+#define BUTTON_ACTIVE_HIGH 1
+#endif
+#ifndef BUTTON_GPIO_PORT
+#define BUTTON_GPIO_PORT GPIOB
+#endif
+#ifndef BUTTON_GPIO_PIN
+#define BUTTON_GPIO_PIN GPIO2
+#endif
+
+#ifndef BUTTON_USES_PULL
+#define BUTTON_USES_PULL 0
+#endif
+
+#ifndef BUTTON_SAMPLE_DELAY_CYCLES
+#define BUTTON_SAMPLE_DELAY_CYCLES 1440000
+#endif
+
+#ifndef HAVE_USB_PULLUP_CONTROL
+#define HAVE_USB_PULLUP_CONTROL 1
+#endif
+#ifndef USB_PULLUP_GPIO_PORT
+#define USB_PULLUP_GPIO_PORT GPIOA
+#endif
+#ifndef USB_PULLUP_GPIO_PIN
+#define USB_PULLUP_GPIO_PIN  GPIO15
+#endif
+#ifndef USB_PULLUP_ACTIVE_HIGH
+#define USB_PULLUP_ACTIVE_HIGH 1
+#endif
+#ifndef USB_PULLUP_OPEN_DRAIN
+#define USB_PULLUP_OPEN_DRAIN 0
+#endif
+
+#ifndef USES_GPIOA
+#define USES_GPIOA 1
+#endif
+
+#ifndef USES_GPIOB
+#define USES_GPIOB 1
+#endif
+
+#ifndef USES_GPIOC
+#define USES_GPIOC 1
+#endif
+
+#ifndef USES_HSE_12M
+#define USES_HSE_12M 1
+#endif
+
+#endif

src/stm32f103/target_stm32f103.c

@@ -69,10 +69,14 @@ void target_clock_setup(void) {
        The clock tolerance doesn't meet the official USB spec, but
        it's better than nothing. */
     rcc_clock_setup_in_hsi_out_48mhz();
+#else
+#ifdef USES_HSE_12M
+    rcc_clock_setup_in_hse_12mhz_out_72mhz();
 #else
     /* Set system clock to 72 MHz from an external crystal */
     rcc_clock_setup_in_hse_8mhz_out_72mhz();
 #endif
+#endif
 }
 
 void target_gpio_setup(void) {
@@ -98,13 +102,20 @@ void target_gpio_setup(void) {
     }
 #endif
 
+#if (HAVE_USB_PULLUP_CONTROL && USB_PULLUP_GPIO_PORT == GPIOA && \
+        (USB_PULLUP_GPIO_PIN == GPIO15))
+    {
+        rcc_periph_clock_enable(RCC_AFIO);
+        AFIO_MAPR |= AFIO_MAPR_SWJ_CFG_JTAG_OFF_SW_ON;
+    }
+#endif
     /* Setup LEDs */
 #if HAVE_LED
     {
         const uint8_t mode = GPIO_MODE_OUTPUT_10_MHZ;
         const uint8_t conf = (LED_OPEN_DRAIN ? GPIO_CNF_OUTPUT_OPENDRAIN
                                              : GPIO_CNF_OUTPUT_PUSHPULL);
-        if (LED_OPEN_DRAIN) {
+        if (LED_OPEN_DRAIN || LED_ACTIVE_HIGH) {
             gpio_set(LED_GPIO_PORT, LED_GPIO_PIN);
         } else {
             gpio_clear(LED_GPIO_PORT, LED_GPIO_PIN);

src/targets.mk

@@ -20,6 +20,12 @@ ifeq ($(TARGET),STM32F103)
 	LDSCRIPT			:= ./stm32f103/stm32f103x8.ld
 	ARCH				= STM32F1
 endif
+ifeq ($(TARGET),KOSHIN)
+	TARGET_COMMON_DIR	:= ./stm32f103
+	TARGET_SPEC_DIR		:= ./stm32f103/koshin
+	LDSCRIPT			:= ./stm32f103/stm32f103x8.ld
+	ARCH				= STM32F1
+endif
 ifeq ($(TARGET),BLUEPILL)
 	TARGET_COMMON_DIR	:= ./stm32f103
 	TARGET_SPEC_DIR		:= ./stm32f103/bluepill