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Diffstat (limited to 'binding/hvac-demo-binding.c')
| -rw-r--r-- | binding/hvac-demo-binding.c | 798 |
1 files changed, 0 insertions, 798 deletions
diff --git a/binding/hvac-demo-binding.c b/binding/hvac-demo-binding.c deleted file mode 100644 index a8993a1..0000000 --- a/binding/hvac-demo-binding.c +++ /dev/null @@ -1,798 +0,0 @@ -/* - * Copyright (C) 2015, 2016 "IoT.bzh" - * Copyright (C) 2016 Konsulko Group - * Author "Romain Forlot" - * Author "Jose Bolo" - * Author "Scott Murray <scott.murray@konsulko.com>" - * - * 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 - -#include <stdio.h> -#include <string.h> -#include <stdbool.h> -#include <unistd.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <sys/ioctl.h> -#include <net/if.h> -#include <linux/can.h> -#include <math.h> -#include <json-c/json.h> - -#define AFB_BINDING_VERSION 2 -#include <afb/afb-binding.h> - -#define RED "/sys/class/leds/blinkm-3-9-red/brightness" -#define GREEN "/sys/class/leds/blinkm-3-9-green/brightness" -#define BLUE "/sys/class/leds/blinkm-3-9-blue/brightness" - -#define CAN_DEV "vcan0" - -#ifndef NULL -#define NULL 0 -#endif - -static const struct afb_binding_interface *interface; -static struct afb_event event; - -/*****************************************************************************************/ -/*****************************************************************************************/ -/** **/ -/** **/ -/** SECTION: UTILITY FUNCTIONS **/ -/** **/ -/** **/ -/*****************************************************************************************/ -/*****************************************************************************************/ - -/* - * @brief Retry a function 3 times - * - * @param int function(): function that return an int wihtout any parameter - * - * @ return : 0 if ok, -1 if failed - * - */ -static int retry( int(*func)()) -{ - int i; - - for (i=0;i<4;i++) - { - if ( (*func)() >= 0) - { - return 0; - } - usleep(100000); - } - return -1; -} - -/*****************************************************************************************/ -/*****************************************************************************************/ -/** **/ -/** **/ -/** SECTION: HANDLE CAN DEVICE **/ -/** **/ -/** **/ -/*****************************************************************************************/ -/*****************************************************************************************/ - -// Initialize CAN hvac array that will be sent trough the socket -static struct { - const char *name; - uint8_t value; -} hvac_values[] = { - { "LeftTemperature", 21 }, - { "RightTemperature", 21 }, - { "Temperature", 21 }, - { "FanSpeed", 0 }, - { "ACEnabled", 0 }, - { "LeftLed", 15 }, - { "RightLed", 15 } -}; - -// Holds RGB combinations for each temperature -static struct { - const int temperature; - const int rgb[3]; -} degree_colours[] = { - {15, {0, 0, 229} }, - {16, {22, 0, 204} }, - {17, {34, 0, 189} }, - {18, {46, 0, 175} }, - {19, {58, 0, 186} }, - {20, {70, 0, 146} }, - {21, {82, 0, 131} }, - {22, {104, 0, 116} }, - {23, {116, 0, 102} }, - {24, {128, 0, 87} }, - {25, {140, 0, 73} }, - {26, {152, 0, 58} }, - {27, {164, 0, 43} }, - {28, {176, 0, 29} }, - {29, {188, 0, 14} }, - {30, {201, 0, 5} } -}; - -struct can_handler { - int socket; - bool simulation; - char *send_msg; - struct sockaddr_can txAddress; -}; - -struct led_paths { - char *red; - char *green; - char *blue; -}led_paths_values = { - .red = RED, - .green = GREEN, - .blue = BLUE -}; - -static struct can_handler can_handler = { .socket = -1, .simulation = false, .send_msg = "SENDING CAN FRAME"}; - -static int open_can_dev_helper() -{ - struct ifreq ifr; - - AFB_DEBUG("CAN Handler socket : %d", can_handler.socket); - close(can_handler.socket); - - can_handler.socket = socket(PF_CAN, SOCK_RAW, CAN_RAW); - if (can_handler.socket < 0) - { - AFB_ERROR("socket could not be created"); - } - else - { - // Attempts to open a socket to CAN bus - strcpy(ifr.ifr_name, CAN_DEV); - if(ioctl(can_handler.socket, SIOCGIFINDEX, &ifr) < 0) - { - AFB_ERROR("ioctl failed"); - } - else - { - can_handler.txAddress.can_family = AF_CAN; - can_handler.txAddress.can_ifindex = ifr.ifr_ifindex; - - // And bind it to txAddress - if (bind(can_handler.socket, (struct sockaddr *)&can_handler.txAddress, sizeof(can_handler.txAddress)) < 0) - { - AFB_ERROR("bind failed"); - } - else { - return 0; - } - } - close(can_handler.socket); - can_handler.socket = -1; - } - return -1; -} - -static int open_can_dev() -{ - int rc = retry(open_can_dev_helper); - if(rc < 0) - { - AFB_ERROR("Open of interface %s failed. Falling back to simulation mode", CAN_DEV); - can_handler.socket = 0; - can_handler.simulation = true; - can_handler.send_msg = "FAKE CAN FRAME"; - rc = 0; - } - return rc; -} - -// Get original get temperature function from cpp hvacplugin code -static uint8_t to_can_temp(uint8_t value) -{ - int result = ((0xF0 - 0x10) / 15) * (value - 15) + 0x10; - if (result < 0x10) - result = 0x10; - if (result > 0xF0) - result = 0xF0; - - return (uint8_t)result; -} - -static uint8_t read_temp_left_zone() -{ - return hvac_values[0].value; -} - -static uint8_t read_temp_right_zone() -{ - return hvac_values[1].value; -} - -static uint8_t read_temp_left_led() -{ - return hvac_values[5].value; -} - -static uint8_t read_temp_right_led() -{ - return hvac_values[6].value; -} - -static uint8_t read_temp() -{ - return (uint8_t)(((int)read_temp_left_zone() + (int)read_temp_right_zone()) >> 1); -} - -static uint8_t read_fanspeed() -{ - return hvac_values[3].value; -} - -/* - * @param: None - * - * @brief: Parse JSON configuration file for blinkm path - */ -static int parse_config() -{ - struct json_object *ledtemp = NULL; - struct json_object *jobj = json_object_from_file("/etc/hvac.json"); - - // Check if .json file has been parsed as a json_object - if (!jobj) { - AFB_ERROR("JSON file could not be opened!\n"); - return 1; - } - - // Check if json_object with key "ledtemp" has been found in .json file - if (!json_object_object_get_ex(jobj, "ledtemp", &ledtemp)){ - AFB_ERROR("Key not found!\n"); - return 1; - } - - // Extract directory paths for each LED colour - json_object_object_foreach(ledtemp, key, value) { - if (strcmp(key, "red") == 0) { - led_paths_values.red = json_object_get_string(value); - } else if (strcmp(key, "green") == 0) { - led_paths_values.green = json_object_get_string(value); - } else if (strcmp(key, "blue") == 0) { - led_paths_values.blue = json_object_get_string(value); - } - } - - // return 0 if all succeeded - return 0; - -} - -/* - * @brief Writing to LED for both temperature sliders - */ -static int temp_write_led() -{ - - int rc = -1, red_value, green_value, blue_value; - int right_temp; - int left_temp; - - left_temp = read_temp_left_led() - 15; - right_temp = read_temp_right_led() - 15; - - // Calculates average colour value taken from the temperature toggles - red_value = (degree_colours[left_temp].rgb[0] + degree_colours[right_temp].rgb[0]) / 2; - green_value = (degree_colours[left_temp].rgb[1] + degree_colours[right_temp].rgb[1]) / 2; - blue_value = (degree_colours[left_temp].rgb[2] + degree_colours[right_temp].rgb[2]) / 2; - - // default path: /sys/class/leds/blinkm-3-9-red/brightness - FILE* r = fopen(led_paths_values.red, "w"); - if(r){ - fprintf(r, "%d", red_value); - fclose(r); - } else { - AFB_ERROR("Unable to open red LED path!\n"); - return -1; - } - - // default path: /sys/class/leds/blinkm-3-9-green/brightness - FILE* g = fopen(led_paths_values.green, "w"); - if(g){ - fprintf(g, "%d", green_value); - fclose(g); - } else { - AFB_ERROR("Unable to open green LED path!\n"); - return -1; - } - - // default path: /sys/class/leds/blinkm-3-9-blue/brightness - FILE* b = fopen(led_paths_values.blue, "w"); - if(b){ - fprintf(b, "%d", blue_value); - fclose(b); - } else { - AFB_ERROR("Unable to open blue LED path!\n"); - return -1; - } - - return 0; -} - -/* - * @brief Get temperature of left toggle in HVAC system - * - * @param struct afb_req : an afb request structure - * - */ -static void temp_left_zone_led(struct afb_req request) -{ - int i = 5, rc, x, changed; - double d; - struct json_object *query, *val; - uint8_t values[sizeof hvac_values / sizeof *hvac_values]; - uint8_t saves[sizeof hvac_values / sizeof *hvac_values]; - - AFB_WARNING("In temp_left_zone_led."); - - query = afb_req_json(request); - - /* records initial values */ - AFB_WARNING("Records initial values"); - values[i] = saves[i] = hvac_values[i].value; - - - if (json_object_object_get_ex(query, hvac_values[i].name, &val)) - { - AFB_WARNING("Value of values[i] = %d", values[i]); - AFB_WARNING("We got it. Tests if it is an int or double."); - if (json_object_is_type(val, json_type_int)) { - x = json_object_get_int(val); - AFB_WARNING("We get an int: %d",x); - } - else if (json_object_is_type(val, json_type_double)) { - d = json_object_get_double(val); - x = (int)round(d); - AFB_WARNING("We get a double: %f => %d",d,x); - } - else { - afb_req_fail_f(request, "bad-request", - "argument '%s' isn't integer or double", hvac_values[i].name); - return; - } - if (x < 0 || x > 255) - { - afb_req_fail_f(request, "bad-request", - "argument '%s' is out of bounds", hvac_values[i].name); - return; - } - if (values[i] != x) { - values[i] = (uint8_t)x; - changed = 1; - AFB_WARNING("%s changed to %d", hvac_values[i].name,x); - } - } - else { - AFB_WARNING("%s not found in query!",hvac_values[i].name); - } - - - if (changed) { - hvac_values[i].value = values[i]; // update structure at line 102 - AFB_WARNING("WRITE_LED: value: %d", hvac_values[i].value); - rc = temp_write_led(); - if (rc >= 0) - afb_req_success(request, NULL, NULL); - else if (retry(temp_write_led)) { - /* restore initial values */ - hvac_values[i].value = saves[i]; - afb_req_fail(request, "error", "I2C error"); - } - } -} - -/* - * @brief Get temperature of right toggle in HVAC system - * - * @param struct afb_req : an afb request structure - * - */ -static void temp_right_zone_led(struct afb_req request) -{ - int i = 6, rc, x, changed; - double d; - struct json_object *query, *val; - uint8_t values[sizeof hvac_values / sizeof *hvac_values]; - uint8_t saves[sizeof hvac_values / sizeof *hvac_values]; - - AFB_WARNING("In temp_right_zone_led."); - - query = afb_req_json(request); - - /* records initial values */ - AFB_WARNING("Records initial values"); - values[i] = saves[i] = hvac_values[i].value; - - - if (json_object_object_get_ex(query, hvac_values[i].name, &val)) - { - AFB_WARNING("Value of values[i] = %d", values[i]); - AFB_WARNING("We got it. Tests if it is an int or double."); - if (json_object_is_type(val, json_type_int)) { - x = json_object_get_int(val); - AFB_WARNING("We get an int: %d",x); - } - else if (json_object_is_type(val, json_type_double)) { - d = json_object_get_double(val); - x = (int)round(d); - AFB_WARNING("We get a double: %f => %d",d,x); - } - else { - afb_req_fail_f(request, "bad-request", - "argument '%s' isn't integer or double", hvac_values[i].name); - return; - } - if (x < 0 || x > 255) - { - afb_req_fail_f(request, "bad-request", - "argument '%s' is out of bounds", hvac_values[i].name); - return; - } - if (values[i] != x) { - values[i] = (uint8_t)x; - changed = 1; - AFB_WARNING("%s changed to %d", hvac_values[i].name,x); - } - } - else { - AFB_WARNING("%s not found in query!", hvac_values[i].name); - } - - - if (changed) { - hvac_values[i].value = values[i]; // update structure at line 102 - AFB_WARNING("WRITE_LED: value: %d", hvac_values[i].value); - rc = temp_write_led(); - if (rc >= 0) - afb_req_success(request, NULL, NULL); - else if (retry(temp_write_led)) { - /* restore initial values */ - hvac_values[i].value = saves[i]; - afb_req_fail(request, "error", "I2C error"); - } - } -} - -static int write_can() -{ - struct can_frame txCanFrame; - int rc = 0; - - rc = can_handler.socket; - if (rc >= 0) - { - // Hardcoded can_id and dlc (data lenght code) - txCanFrame.can_id = 0x30; - txCanFrame.can_dlc = 8; - txCanFrame.data[0] = to_can_temp(read_temp_left_zone()); - txCanFrame.data[1] = to_can_temp(read_temp_right_zone()); - txCanFrame.data[2] = to_can_temp(read_temp()); - txCanFrame.data[3] = 0xf0; - txCanFrame.data[4] = read_fanspeed(); - txCanFrame.data[5] = 1; - txCanFrame.data[6] = 0; - txCanFrame.data[7] = 0; - - AFB_DEBUG("%s: %d %d [%02x %02x %02x %02x %02x %02x %02x %02x]\n", - can_handler.send_msg, - txCanFrame.can_id, txCanFrame.can_dlc, - txCanFrame.data[0], txCanFrame.data[1], txCanFrame.data[2], txCanFrame.data[3], - txCanFrame.data[4], txCanFrame.data[5], txCanFrame.data[6], txCanFrame.data[7]); - - if(!can_handler.simulation) - { - rc = (int)sendto(can_handler.socket, &txCanFrame, sizeof(struct can_frame), 0, - (struct sockaddr*)&can_handler.txAddress, sizeof(can_handler.txAddress)); - if (rc < 0) - { - AFB_ERROR("Sending CAN frame failed."); - } - } - } - else - { - AFB_ERROR("socket not initialized. Attempt to reopen can device socket."); - open_can_dev(); - } - return rc; -} - -/*****************************************************************************************/ -/*****************************************************************************************/ -/** **/ -/** **/ -/** SECTION: BINDING VERBS IMPLEMENTATION **/ -/** **/ -/** **/ -/*****************************************************************************************/ -/*****************************************************************************************/ - -/* - * @brief Get fan speed HVAC system - * - * @param struct afb_req : an afb request structure - * - */ -static void get_fanspeed(struct afb_req request) -{ - json_object *ret_json; - uint8_t fanspeed = read_fanspeed(); - - ret_json = json_object_new_object(); - json_object_object_add(ret_json, "FanSpeed", json_object_new_int(fanspeed)); - - afb_req_success(request, ret_json, NULL); -} - -/* - * @brief Read Consign right zone temperature for HVAC system - * - * @param struct afb_req : an afb request structure - * - */ -static void get_temp_right_zone(struct afb_req request) -{ - json_object *ret_json; - uint8_t temp = read_temp_right_zone(); - - ret_json = json_object_new_object(); - json_object_object_add(ret_json, "RightTemperature", json_object_new_int(temp)); - - afb_req_success(request, ret_json, NULL); -} - -/* - * @brief Read Consign left zone temperature for HVAC system - * - * @param struct afb_req : an afb request structure - * - */ -static void get_temp_left_zone(struct afb_req request) -{ - json_object *ret_json; - uint8_t temp = read_temp_left_zone(); - - ret_json = json_object_new_object(); - json_object_object_add(ret_json, "LeftTemperature", json_object_new_int(temp)); - - afb_req_success(request, ret_json, NULL); -} - -/* - * @brief Read all values - * - * @param struct afb_req : an afb request structure - * - */ -static void get(struct afb_req request) -{ - AFB_DEBUG("Getting all values"); - json_object *ret_json; - - ret_json = json_object_new_object(); - json_object_object_add(ret_json, "LeftTemperature", json_object_new_int(read_temp_left_zone())); - json_object_object_add(ret_json, "RightTemperature", json_object_new_int(read_temp_right_zone())); - json_object_object_add(ret_json, "FanSpeed", json_object_new_int(read_fanspeed())); - - afb_req_success(request, ret_json, NULL); -} - -/* - * @brief Set a component value using a json object retrieved from request - * - * @param struct afb_req : an afb request structure - * - */ -static void set(struct afb_req request) -{ - int i, rc, x, changed; - double d; - struct json_object *query, *val; - uint8_t values[sizeof hvac_values / sizeof *hvac_values]; - uint8_t saves[sizeof hvac_values / sizeof *hvac_values]; - - /* records initial values */ - AFB_DEBUG("Records initial values"); - i = (int)(sizeof hvac_values / sizeof *hvac_values); - while (i) { - i--; - values[i] = saves[i] = hvac_values[i].value; - } - - /* Loop getting arguments */ - query = afb_req_json(request); - changed = 0; - i = (int)(sizeof hvac_values / sizeof *hvac_values); - AFB_DEBUG("Looping for args. i: %d", i); - while (i) - { - i--; - AFB_DEBUG("Searching... query: %s, i: %d, comp: %s", json_object_to_json_string(query), i, hvac_values[i].name); - if (json_object_object_get_ex(query, hvac_values[i].name, &val)) - { - AFB_DEBUG("We got it. Tests if it is an int or double."); - if (json_object_is_type(val, json_type_int)) { - x = json_object_get_int(val); - AFB_DEBUG("We get an int: %d",x); - } - else if (json_object_is_type(val, json_type_double)) { - d = json_object_get_double(val); - x = (int)round(d); - AFB_DEBUG("We get a double: %f => %d",d,x); - } - else { - afb_req_fail_f(request, "bad-request", - "argument '%s' isn't integer or double", hvac_values[i].name); - return; - } - if (x < 0 || x > 255) - { - afb_req_fail_f(request, "bad-request", - "argument '%s' is out of bounds", hvac_values[i].name); - return; - } - if (values[i] != x) { - values[i] = (uint8_t)x; - changed = 1; - AFB_DEBUG("%s changed to %d",hvac_values[i].name,x); - } - } - else { - AFB_DEBUG("%s not found in query!",hvac_values[i].name); - } - } - - /* attemps to set new values */ - AFB_DEBUG("Diff: %d", changed); - if (changed) - { - i = (int)(sizeof hvac_values / sizeof *hvac_values); - while (i) { - i--; - hvac_values[i].value = values[i]; - } - rc = write_can(); - if (rc >= 0) - afb_req_success(request, NULL, NULL); - else if (retry(write_can)) { - /* restore initial values */ - i = (int)(sizeof hvac_values / sizeof *hvac_values); - while (i) { - i--; - hvac_values[i].value = saves[i]; - } - afb_req_fail(request, "error", "CAN error"); - } - } - else { - afb_req_success(request, NULL, "No changes"); - } -} - -int bindingServicePreInit(struct afb_service service) -{ - return open_can_dev(); -} - -int bindingServiceInit(struct afb_service service) -{ - event = afb_daemon_make_event("language"); - if(parse_config() != 0) - AFB_WARNING("Default values are being used!\n"); - if(afb_daemon_require_api("identity", 1)) - return -1; - return afb_service_call_sync("identity", "subscribe", NULL, NULL); -} - -void onEvent(const char *event_name, struct json_object *object) -{ - json_object *args, *language = json_object_new_object(); - json_object *id_evt_name, *current_identity; - - AFB_NOTICE("Event '%s' received: %s", event_name, - json_object_to_json_string_ext(object, JSON_C_TO_STRING_PRETTY)); - - if (json_object_object_get_ex(object, "eventName", &id_evt_name) && - !strcmp(json_object_get_string(id_evt_name), "login") && - !afb_service_call_sync("identity", "get", NULL, ¤t_identity)) { - json_object *response; - if (! json_object_object_get_ex(current_identity, "response", &response) || ! json_object_object_get_ex(response, "graphPreferredLanguage", &language)) { - language = json_object_new_string("en_US"); - } - afb_event_broadcast(event, language); - } -} - -// TODO: Have to change session management flag to AFB_SESSION_CHECK to use token auth -static const struct afb_verb_v2 _afb_verbs_v2_hvac[]= { - { - .verb = "get_temp_left_zone", - .callback = get_temp_left_zone, - .auth = NULL, - .info = "Get the left zone temperature", - .session = AFB_SESSION_NONE_V2 - }, - { - .verb = "get_temp_right_zone", - .callback = get_temp_right_zone, - .auth = NULL, - .info = "Get the right zone temperature", - .session = AFB_SESSION_NONE_V2 - }, - { - .verb = "get_fanspeed", - .callback = get_fanspeed, - .auth = NULL, - .info = "Read fan speed", - .session = AFB_SESSION_NONE_V2 - }, - { - .verb = "get", - .callback = get, - .auth = NULL, - .info = "Read all speed", - .session = AFB_SESSION_NONE_V2 - }, - { - .verb = "set", - .callback = set, - .auth = NULL, - .info = "Set a HVAC component value", - .session = AFB_SESSION_NONE_V2 - }, - { - .verb = "temp_left_zone_led", - .callback = temp_left_zone_led, - .auth = NULL, - .info = "Turn on LED on left temperature zone", - .session = AFB_SESSION_NONE_V2 - }, - { - .verb = "temp_right_zone_led", - .callback = temp_right_zone_led, - .auth = NULL, - .info = "Turn on LED on left temperature zone", - .session = AFB_SESSION_NONE_V2 - - }, - { - .verb = NULL, - .callback = NULL, - .auth = NULL, - .info = NULL, - .session = 0 - } -}; - -const struct afb_binding_v2 afbBindingV2 = { - .api = "hvac", - .specification = NULL, - .info = "HVAC service", - .verbs = _afb_verbs_v2_hvac, - .preinit = bindingServicePreInit, - .init = bindingServiceInit, - .onevent = onEvent, - .noconcurrency = 0 -};
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