platform: add iot2050 platform support

This patch introuduce iot2050 platform support, it is the port from
meta-iot2050 layer.

Based on original patch by Le Jin.

Signed-off-by: Le Jin <le.jin@siemens.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Ivan Mikhaylov <ivan.mikhaylov@siemens.com>

api/mraa/types.h

@@ -68,6 +68,7 @@ typedef enum {
     MRAA_ADLINK_LEC_AL_AI = 23,        /**< Adlink LEC-AL*/
     MRAA_UPXTREME = 24,             /**< The UPXTREME Board */
     MRAA_INTEL_ILK = 25,            /**< Intel Learning Kit */
+    MRAA_SIEMENS_IOT2050 = 26,      /**< Siemens IOT2050 board */
     // USB platform extenders start at 256
     MRAA_FTDI_FT4222 = 256,         /**< FTDI FT4222 USB to i2c bridge */
 

api/mraa/types.hpp

@@ -61,6 +61,7 @@ typedef enum {
     MTK_OMEGA2 = 18,           /**< MT7688 based Onion Omega2 board */
     IEI_TANK = 19,             /**< IEI Tank System*/
     INTEL_UPXTREME = 24,        /**< The UPXTREME Board */
+    SIEMENS_IOT2050 = 26,      /**< Siemens IOT2050 board */
 
     FTDI_FT4222 = 256,         /**< FTDI FT4222 USB to i2c bridge */
 

include/arm/siemens/iot2050.h

@@ -0,0 +1,40 @@
+/*
+ * Author: Le Jin <le.jin@siemens.com>
+ * Copyright (c) Siemens AG, 2019
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "mraa_internal.h"
+
+#define PLATFORM_NAME                   "SIMATIC IOT2050"
+#define MRAA_IOT2050_PINCOUNT          (20)
+
+mraa_board_t *
+        mraa_siemens_iot2050();
+
+#ifdef __cplusplus
+}
+#endif

include/arm/siemens/platform.h

@@ -0,0 +1,97 @@
+/*
+ * Author: Le Jin <le.jin@siemens.com>
+ * Copyright (c) Siemens AG, 2019
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef _PLATFORM_H_
+#define _PLATFORM_H_
+#ifdef __cplusplus
+extern "C" {
+#endif
+#include <stdio.h>
+#include <stdint.h>
+#include <stdbool.h>
+typedef struct {
+    bool (*init)(void);
+    void (*deinit)(void);
+    void (*select_func)(uint8_t group, uint16_t pinIndex, uint8_t func);
+    void (*select_input)(uint8_t group, uint16_t pinIndex);
+    void (*select_output)(uint8_t group, uint16_t pinIndex);
+    void (*select_inout)(uint8_t group, uint16_t pinIndex);
+    void (*select_hiz)(uint8_t group, uint16_t pinIndex);
+    void (*select_pull_up)(uint8_t group, uint16_t pinIndex);
+    void (*select_pull_down)(uint8_t group, uint16_t pinIndex);
+    void (*select_pull_disable)(uint8_t group, uint16_t pinIndex);
+    uint32_t (*get_raw_reg_value)(uint8_t group, uint16_t pinIndex);
+    void (*set_raw_reg_value)(uint8_t group, uint16_t pinIndex, uint32_t value);
+    void (*dump_info)(uint8_t group, uint16_t pinIndex);
+} pin_mux_ops_t;
+
+typedef struct{
+    bool            initialized;
+    pin_mux_ops_t     ops;
+} pin_mux_interface_t;
+
+#define VOID_INTERFACE_CALL(instance, function) \
+do {\
+        if((instance) && ((pin_mux_interface_t *)instance)->ops.function) \
+            ((pin_mux_interface_t *)instance)->ops.function(); \
+}while(0)
+
+#define VOID_INTERFACE_CALL_WITH_ARGS(instance, function, ...) \
+do {\
+        if((instance) && ((pin_mux_interface_t *)instance)->ops.function) \
+            ((pin_mux_interface_t *)instance)->ops.function(__VA_ARGS__); \
+}while(0)
+
+#define INTERFACE_CALL_WITH_ARGS(instance, retType, defaultRetValue, function, ...) \
+( \
+    { \
+        retType ret = defaultRetValue; \
+        if((instance) && ((pin_mux_interface_t *)instance)->ops.function) \
+            ret = ((pin_mux_interface_t *)instance)->ops.function(__VA_ARGS__); \
+        ret; \
+    } \
+)
+
+#ifdef _DEBUG
+#define DEBUG_PRINT(...) fprintf(stderr, __VA_ARGS__)
+#else
+#define DEBUG_PRINT(...) do{}while(0)
+#endif
+
+void *platfrom_pinmux_get_instance(char *platform);
+#define platform_pinmux_release_instance(instance) VOID_INTERFACE_CALL(instance, deinit)
+#define platform_pinmux_select_func(instance, ...) VOID_INTERFACE_CALL_WITH_ARGS(instance, select_func, __VA_ARGS__)
+#define platform_pinmux_select_input(instance, ...) VOID_INTERFACE_CALL_WITH_ARGS(instance, select_input, __VA_ARGS__)
+#define platform_pinmux_select_output(instance, ...) VOID_INTERFACE_CALL_WITH_ARGS(instance, select_output, __VA_ARGS__)
+#define platform_pinmux_select_inout(instance, ...) VOID_INTERFACE_CALL_WITH_ARGS(instance, select_inout, __VA_ARGS__)
+#define platform_pinmux_select_hiz(instance, ...) VOID_INTERFACE_CALL_WITH_ARGS(instance, select_hiz, __VA_ARGS__)
+#define platform_pinmux_select_pull_up(instance, ...) VOID_INTERFACE_CALL_WITH_ARGS(instance, select_pull_up, __VA_ARGS__)
+#define platform_pinmux_select_pull_down(instance, ...) VOID_INTERFACE_CALL_WITH_ARGS(instance, select_pull_down, __VA_ARGS__)
+#define platform_pinmux_select_pull_disable(instance, ...) VOID_INTERFACE_CALL_WITH_ARGS(instance, select_pull_disable, __VA_ARGS__)
+#define platform_pinmux_get_raw_reg_value(instance, ...) INTERFACE_CALL_WITH_ARGS(instance, uint32_t, -1, get_raw_reg_value, __VA_ARGS__)
+#define platform_pinmux_set_raw_reg_value(instance, ...) VOID_INTERFACE_CALL_WITH_ARGS(instance, set_raw_reg_value, __VA_ARGS__)
+#define platform_pinmux_dump_info(instance, ...) VOID_INTERFACE_CALL_WITH_ARGS(instance, dump_info, __VA_ARGS__)
+#ifdef __cplusplus
+}
+#endif
+#endif

include/arm/siemens/platform_iot2050.h

@@ -0,0 +1,34 @@
+/*
+ * Author: Le Jin <le.jin@siemens.com>
+ * Copyright (c) Siemens AG, 2019
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef _PLATFORM_IOT2050_H_
+#define _PLATFORM_IOT2050_H_
+#ifdef __cplusplus
+extern "C" {
+#endif
+#include "arm/siemens/platform.h"
+pin_mux_interface_t *iot2050_pinmux_get_instance(void);
+#ifdef __cplusplus
+}
+#endif
+#endif

src/CMakeLists.txt

@@ -109,6 +109,9 @@ set (mraa_LIB_ARM_SRCS_NOAUTO
   ${PROJECT_SOURCE_DIR}/src/arm/de_nano_soc.c
   ${PROJECT_SOURCE_DIR}/src/arm/rockpi4.c
   ${PROJECT_SOURCE_DIR}/src/arm/adlink_ipi.c
+  ${PROJECT_SOURCE_DIR}/src/arm/siemens/iot2050.c
+  ${PROJECT_SOURCE_DIR}/src/arm/siemens/platform.c
+  ${PROJECT_SOURCE_DIR}/src/arm/siemens/platform_iot2050.c
 )
 
 set (mraa_LIB_MIPS_SRCS_NOAUTO

src/arm/arm.c

@@ -17,6 +17,7 @@
 #include "arm/phyboard.h"
 #include "arm/raspberry_pi.h"
 #include "arm/adlink_ipi.h"
+#include "arm/siemens/iot2050.h"
 #include "mraa_internal.h"
 
 
@@ -98,6 +99,8 @@ mraa_arm_platform()
             platform_type = MRAA_RASPBERRY_PI;
         else if (mraa_file_contains("/proc/device-tree/model", "ADLINK ARM, LEC-PX30"))
             platform_type = MRAA_ADLINK_IPI;
+        else if (mraa_file_contains("/proc/device-tree/model", "SIMATIC IOT2050"))
+            platform_type = MRAA_SIEMENS_IOT2050;
     }
 
     switch (platform_type) {
@@ -124,6 +127,8 @@ mraa_arm_platform()
             break;
         case MRAA_ADLINK_IPI:
             plat = mraa_adlink_ipi();
+        case MRAA_SIEMENS_IOT2050:
+            plat = mraa_siemens_iot2050();
             break;
         default:
             plat = NULL;