add BSP for STM32L476GDISCOVERY

.travis.yml

@@ -12,3 +12,5 @@ before_install:
 script:
 - docker run -v $PWD:/my_files_in_docker --entrypoint /usr/bin/make jumperio/vlab-gcc-arm -C my_files_in_docker SERIES=STM32F4
 - docker run -v $PWD:/my_files_in_docker --entrypoint /usr/bin/make jumperio/vlab-gcc-arm -C my_files_in_docker SERIES=STM32F4 OS_DIR=FreeRTOS/FreeRTOS/Source
+- docker run -v $PWD:/my_files_in_docker --entrypoint /usr/bin/make jumperio/vlab-gcc-arm -C my_files_in_docker SERIES=STM32L4
+- docker run -v $PWD:/my_files_in_docker --entrypoint /usr/bin/make jumperio/vlab-gcc-arm -C my_files_in_docker SERIES=STM32L4 OS_DIR=FreeRTOS/FreeRTOS/Source

BSP_STM32L4xx/bsp_io.c

@@ -0,0 +1,47 @@
+/**
+  ******************************************************************************
+  * @file    bsp_io.c
+  * @author  Benedek Kupper
+  * @version 0.1
+  * @date    2018-12-16
+  * @brief   IPoverUSB BSP for I/O pins
+  *
+  * Copyright (c) 2018 Benedek Kupper
+  *
+  * 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.
+  */
+#include <bsp_io.h>
+
+const GPIO_InitType BSP_IOCfg[] =
+{
+    /* USB pins */
+    {
+        .Mode = GPIO_MODE_ALTERNATE,
+        .Pull = GPIO_PULL_FLOAT,
+        .Output.Type  = GPIO_OUTPUT_PUSHPULL,
+        .Output.Speed = VERY_HIGH,
+        .AlternateMap = GPIO_OTG_FS_AF10
+    },
+    /* PushButton */
+    {
+        .Mode = GPIO_MODE_INPUT,
+        .Pull = GPIO_PULL_FLOAT,
+    },
+    /* LED */
+    {
+        .Mode = GPIO_MODE_OUTPUT,
+        .Pull = GPIO_PULL_FLOAT,
+        .Output.Type  = GPIO_OUTPUT_PUSHPULL,
+        .Output.Speed = HIGH,
+    },
+};

BSP_STM32L4xx/bsp_io.h

@@ -0,0 +1,54 @@
+/**
+  ******************************************************************************
+  * @file    bsp_io.h
+  * @author  Benedek Kupper
+  * @version 0.1
+  * @date    2018-12-16
+  * @brief   IPoverUSB BSP for I/O pins
+  *
+  * Copyright (c) 2018 Benedek Kupper
+  *
+  * 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.
+  */
+#ifndef __BSP_IO_H_
+#define __BSP_IO_H_
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <xpd_gpio.h>
+
+#define USB_DP_PIN          PA12
+#define USB_DM_PIN          PA11
+#define USB_VBUS_PIN        PA9
+#define USB_DP_CFG          (&BSP_IOCfg[0])
+#define USB_DM_CFG          (&BSP_IOCfg[0])
+#define USB_VBUS_CFG        (&BSP_IOCfg[0])
+
+#define BUTTON_PIN          PA0
+#define BUTTON_CFG          (&BSP_IOCfg[1])
+
+#define LED_GREEN_PIN       PE8
+#define LED_RED_PIN         PB2
+#define LED_GREEN_CFG       (&BSP_IOCfg[2])
+#define LED_RED_CFG         (&BSP_IOCfg[2])
+
+extern const GPIO_InitType BSP_IOCfg[];
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __BSP_IO_H_ */

BSP_STM32L4xx/bsp_system.c

@@ -0,0 +1,59 @@
+/**
+  ******************************************************************************
+  * @file    bsp_system.c
+  * @author  Benedek Kupper
+  * @version 0.1
+  * @date    2018-12-16
+  * @brief   IPoverUSB BSP for system clocking
+  *
+  * Copyright (c) 2018 Benedek Kupper
+  *
+  * 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.
+  */
+#include <bsp_system.h>
+#include <xpd_rcc.h>
+
+static const RCC_MSI_InitType msiconf = {
+    .ClockFreq = MSI_48MHz,
+    .State = ENABLE
+};
+
+static const RCC_PLL_InitType pllconf = {
+    .State = ENABLE,
+    .Source = MSI,
+    .M = 6,
+    .N = 20,
+    .R = 2, /* MSI / 6 * 20 / 2 = PLLR = 80000000 -> SYSCLK */
+
+    .Q = 2,
+    .P = 7
+};
+
+/* System clocks configuration */
+void SystemClock_Config(void)
+{
+    RCC_eMSI_Config(&msiconf);
+
+#ifdef LSE_VALUE_Hz
+    /* Use LSE to synchronize MSI */
+    RCC_eLSE_Config(OSC_ON);
+#endif
+
+    RCC_ePLL_Config(&pllconf);
+
+    /* System clocks configuration */
+    RCC_eHCLK_Config(PLL, CLK_DIV1, 4);
+
+    RCC_vPCLK1_Config(CLK_DIV1);
+    RCC_vPCLK2_Config(CLK_DIV1);
+}

BSP_STM32L4xx/bsp_system.h

@@ -0,0 +1,37 @@
+/**
+  ******************************************************************************
+  * @file    bsp_system.h
+  * @author  Benedek Kupper
+  * @version 0.1
+  * @date    2018-12-16
+  * @brief   IPoverUSB BSP for system clocking
+  *
+  * Copyright (c) 2018 Benedek Kupper
+  *
+  * 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.
+  */
+#ifndef __BSP_SYSTEM_H_
+#define __BSP_SYSTEM_H_
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+extern void SystemClock_Config(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __BSP_SYSTEM_H_ */

BSP_STM32L4xx/bsp_usb.c

@@ -0,0 +1,70 @@
+/**
+  ******************************************************************************
+  * @file    bsp_usb.c
+  * @author  Benedek Kupper
+  * @version 0.1
+  * @date    2018-12-16
+  * @brief   IPoverUSB BSP for USB communication
+  *
+  * Copyright (c) 2018 Benedek Kupper
+  *
+  * 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.
+  */
+#include <bsp_io.h>
+#include <bsp_usb.h>
+#include <xpd_nvic.h>
+#include <xpd_pwr.h>
+
+void OTG_FS_IRQHandler(void);
+
+/* USB dependencies initialization */
+static void BSP_USB_Init(void * handle)
+{
+    /* GPIO settings */
+    GPIO_vInitPin(USB_DM_PIN, USB_DM_CFG);
+    GPIO_vInitPin(USB_DP_PIN, USB_DP_CFG);
+
+    NVIC_SetPriorityConfig(OTG_FS_IRQn, 0x6, 0);
+    NVIC_EnableIRQ(OTG_FS_IRQn);
+
+    USB_vClockConfig(USB_CLOCKSOURCE_MSI);
+
+    PWR_vVddUSB(ENABLE);
+}
+
+/* USB dependencies deinitialization */
+static void BSP_USB_Deinit(void * handle)
+{
+    GPIO_vDeinitPin(USB_DM_PIN);
+    GPIO_vDeinitPin(USB_DP_PIN);
+    NVIC_DisableIRQ(OTG_FS_IRQn);
+    PWR_vVddUSB(DISABLE);
+}
+
+extern USB_HandleType *const UsbDevice;
+
+void BSP_USB_Bind(void)
+{
+    USB_INST2HANDLE(UsbDevice, USB_OTG_FS);
+    UsbDevice->Callbacks.DepInit = BSP_USB_Init;
+    UsbDevice->Callbacks.DepDeinit = BSP_USB_Deinit;
+}
+
+/* Common interrupt handler for USB core and WKUP line */
+void OTG_FS_IRQHandler(void)
+{
+    EXTI_vClearFlag(USB_OTG_FS_WAKEUP_EXTI_LINE);
+
+    /* Handle USB interrupts */
+    USB_vIRQHandler(UsbDevice);
+}

BSP_STM32L4xx/bsp_usb.h

@@ -0,0 +1,39 @@
+/**
+  ******************************************************************************
+  * @file    bsp_usb.h
+  * @author  Benedek Kupper
+  * @version 0.1
+  * @date    2018-12-16
+  * @brief   IPoverUSB BSP for USB communication
+  *
+  * Copyright (c) 2018 Benedek Kupper
+  *
+  * 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.
+  */
+#ifndef __BSP_USB_H_
+#define __BSP_USB_H_
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <xpd_usb.h>
+
+void BSP_USB_Bind(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __BSP_USB_H_ */