unicens-controller: insert initial code of service

Bug-AGL: SPEC-2738

- adds service widget to control microphone mode,
  amplifier and slimamp master volume

Signed-off-by: Tobias Jahnke <tobias.jahnke@microchip.com>
Change-Id: I2463b0351c740c738e35185997d926a602bb2489
Signed-off-by: Tobias Jahnke <tobias.jahnke@microchip.com>

3 files changed, 183 insertions, 0 deletions

diff --git a/binding/amplifier/CMakeLists.txt b/binding/amplifier/CMakeLists.txt
new file mode 100644
index 0000000..744fee6
--- /dev/null
+++ b/binding/amplifier/CMakeLists.txt
@@ -0,0 +1,32 @@
+################################################################################
+# Copyright 2019 Microchip Technology Inc. and its subsidiaries
+#
+# 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.
+################################################################################
+
+# Add target to project dependency list
+PROJECT_TARGET_ADD(ucs-amplifier)
+
+# Define targets source files
+ADD_LIBRARY(${TARGET_NAME} STATIC amplifier.c)
+
+   # Expose Library Properties
+   SET_TARGET_PROPERTIES(${TARGET_NAME} PROPERTIES OUTPUT_NAME amplifier)
+
+   # Library dependencies from PKG_REQUIRED_LIST
+   TARGET_LINK_LIBRARIES(${TARGET_NAME} ${link_libraries} m)
+
+   # Define properties to expose when others use this target
+   TARGET_INCLUDE_DIRECTORIES(${TARGET_NAME} PUBLIC
+      ${CMAKE_CURRENT_SOURCE_DIR}/../wrap-unicens
+   )
diff --git a/binding/amplifier/amplifier.c b/binding/amplifier/amplifier.c
new file mode 100644
index 0000000..a3b5cc3
--- /dev/null
+++ b/binding/amplifier/amplifier.c
@@ -0,0 +1,124 @@
+/*
+ *  Copyright 2019 Microchip Technology Inc. and its subsidiaries
+ *
+ *  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.
+ */
+#define _GNU_SOURCE
+#ifndef AFB_BINDING_VERSION
+#  define AFB_BINDING_VERSION 3
+#endif
+
+#include <stdio.h>
+#include <string.h>
+#include <afb/afb-binding.h>
+#include <wrap-json.h>
+#include "wrap-unicens.h"
+#include "amplifier.h"
+#include <math.h>
+
+#define NODE_ID         ((uint16_t)0x510U)
+#define FUNC_VOLUME     0x100U
+#define OP_SET          0x00U
+#define DEFAULT_VOLUME  0xF0U
+#define TX_PAYLOAD_SZ   2U
+
+static uint8_t _tx_payload[TX_PAYLOAD_SZ] = {OP_SET, DEFAULT_VOLUME};
+static bool _available = false;
+
+/*****************************************************************************
+ * Local prototypes
+ */
+static int get_payload_master_volume(uint8_t sys_vol, uint8_t *payload_ptr, uint8_t payload_sz);
+static int amplifier_master_volume_set(uint8_t volume);
+
+/*****************************************************************************
+ * API
+ */
+
+extern void amplifier_availablility_changed(uint16_t node_id, bool available) {
+    if (node_id == NODE_ID) {
+        AFB_API_DEBUG(afbBindingRoot, "%s: amplifier new availability=%d", __func__, available);
+        _available = available;
+    }
+}
+
+extern int amplifier_master_volume_set(uint8_t volume) {
+    AFB_API_NOTICE(afbBindingRoot, "amplifier_master_volume_set volume=%d", volume);
+    if (_available == false) {
+        AFB_API_NOTICE(afbBindingRoot, "%s: node is not available", __func__);
+        return -1;
+    }
+
+    if (volume > 100U) {
+        AFB_API_NOTICE(afbBindingRoot, "%s: invalid volume value %d", __func__, volume);
+        return -2; // parameter error
+    }
+
+    int logvalue = abs((int)(log1p((double)volume) * (double)100 / log1p((double)100)));
+    AFB_API_NOTICE(afbBindingRoot, "%s: logarithic value=%d", __func__, logvalue);
+
+    if (get_payload_master_volume((uint8_t)(logvalue), _tx_payload, TX_PAYLOAD_SZ) != 0) {
+        AFB_API_NOTICE(afbBindingRoot, "%s: cannot calculate paylaod", __func__);
+        return -3; // calculation error
+    }
+
+    // fire message now
+    AFB_API_DEBUG(afbBindingRoot, "%s: calculated payload: {%02X,%02X}", __func__, _tx_payload[0], _tx_payload[1]);
+    wrap_ucs_sendmessage_sync(NODE_ID, FUNC_VOLUME, _tx_payload, TX_PAYLOAD_SZ);
+
+    return 0;
+}
+
+/*****************************************************************************
+ * Device specific helper functions
+ */
+
+static int get_payload_master_volume(uint8_t sys_vol, uint8_t *payload_ptr, uint8_t payload_sz) {
+    if (payload_sz < 2U)
+        return -1;
+
+    uint32_t new_vol = (uint32_t)((uint32_t)sys_vol * 255) / 100;   // calculate value{0..100} to value{0..255}
+
+    payload_ptr[0] = OP_SET;
+    payload_ptr[1] = (uint8_t)new_vol;                              // use 0..255 now
+    return 0;
+}
+
+
+/*****************************************************************************
+ * JSON API
+ */
+
+extern void amplifier_master_vol_set_api(afb_req_t request) {
+    int volume = 0;
+    struct json_object* j_obj = afb_req_json(request);
+
+    AFB_API_DEBUG(afbBindingRoot, "UNICENS-CONTROLLER: %s:%s", __func__, json_object_get_string(j_obj));
+
+    if (wrap_json_unpack(j_obj, "{s:i}", "value", &volume) == 0) {
+        AFB_API_DEBUG(afbBindingRoot, "UNICENS-CONTROLLER: decoded value=%d", volume);
+
+        if ((volume >= 0) && (volume <= 100)) {
+            AFB_API_DEBUG(afbBindingRoot, "amplifier_master_vol_set calling amplifier");
+            int res = amplifier_master_volume_set((uint8_t)volume);
+            AFB_API_DEBUG(afbBindingRoot, "amplifier returning %d", res);
+            afb_req_success(request, NULL, NULL);
+        }
+        else {
+            afb_req_fail(request, "invalid range of parameter 'value'", NULL);
+        }
+    }
+    else {
+        afb_req_fail(request, "missing argument 'value'", NULL);
+    }
+}
diff --git a/binding/amplifier/amplifier.h b/binding/amplifier/amplifier.h
new file mode 100644
index 0000000..e705db4
--- /dev/null
+++ b/binding/amplifier/amplifier.h
@@ -0,0 +1,27 @@
+/*
+ *  Copyright 2019 Microchip Technology Inc. and its subsidiaries
+ *
+ *  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
+
+#ifndef AFB_BINDING_VERSION
+#  define AFB_BINDING_VERSION 3
+#endif
+#include <afb/afb-binding.h>
+
+/* notify events */
+extern void amplifier_availablility_changed(uint16_t node_id, bool available);
+
+/* JSON API */
+extern void amplifier_master_vol_set_api(afb_req_t request);