diff options
Diffstat (limited to 'binding/amplifier')
| -rw-r--r-- | binding/amplifier/CMakeLists.txt | 32 | ||||
| -rw-r--r-- | binding/amplifier/amplifier.c | 124 | ||||
| -rw-r--r-- | binding/amplifier/amplifier.h | 27 |
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); |