Merge pull request #18 from tjahnk/basic_events
[apps/agl-service-unicens.git] / ucs2-afb / ucs_binding.c
index efb4928..8a1174c 100644 (file)
@@ -23,6 +23,7 @@
 
 #define BUFFER_FRAME_COUNT 10 /* max frames in buffer */
 #define WAIT_TIMER_US 1000000 /* default waiting timer 1s */
+#define I2C_MAX_DATA_SZ    32 /* max. number of bytes to be written to i2c */
 
 #include <systemd/sd-event.h>
 #include <sys/types.h>
 #include <time.h>
 #include <assert.h>
 #include <errno.h>
+#include <dirent.h> 
 
 #include "ucs_binding.h"
 #include "ucs_interface.h"
 
-
-
 #define MAX_FILENAME_LEN (100)
 #define RX_BUFFER (64)
 
@@ -62,7 +62,13 @@ typedef struct {
   UCSI_channelsT *channels;
 } ucsContextT;
 
+typedef struct {
+    struct afb_event node_event;
+    
+} EventData_t;
+
 static ucsContextT *ucsContextS;
+static EventData_t *eventData = NULL;
 
 PUBLIC void UcsXml_CB_OnError(const char format[], uint16_t vargsCnt, ...) {
     /*AFB_DEBUG (afbIface, format, args); */
@@ -192,6 +198,39 @@ void UCSI_CB_OnAmsMessageReceived(void *pTag)
           Don't forget to call UCSI_ReleaseAmsMessage after that */
 }
 
+void UCSI_CB_OnRouteResult(void *pTag, uint16_t routeId, bool isActive)
+{
+}
+
+void UCSI_CB_OnGpioStateChange(void *pTag, uint16_t nodeAddress, uint8_t gpioPinId, bool isHighState)
+{
+}
+
+PUBLIC void UCSI_CB_OnMgrReport(void *pTag, Ucs_MgrReport_t code, uint16_t nodeAddress, Ucs_Rm_Node_t *pNode){
+
+    bool available;
+    
+    if (code == UCS_MGR_REP_AVAILABLE) {
+        available = true;
+    }
+    else if (code == UCS_MGR_REP_NOT_AVAILABLE) {
+        available = false;
+    }
+    else {
+        /*untracked event - just exit*/
+        return;
+    }
+    
+    if (eventData) {
+        
+        json_object *j_event_info = json_object_new_object();
+        json_object_object_add(j_event_info, "node", json_object_new_int(nodeAddress));
+        json_object_object_add(j_event_info, "available", json_object_new_boolean(available));
+        
+        afb_event_push(eventData->node_event, j_event_info);
+    }     
+}
+
 bool Cdev_Init(CdevData_t *d, const char *fileName, bool read, bool write)
 {
     if (NULL == d || NULL == fileName)  goto OnErrorExit;
@@ -379,7 +418,6 @@ STATIC int volSndCmd (struct afb_req request, struct json_object *commandJ, ucsC
     return 1;
 }
 
-
 PUBLIC void ucs2_volume (struct afb_req request) {
     struct json_object *queryJ;
     int err;
@@ -423,7 +461,7 @@ PUBLIC void ucs2_volume (struct afb_req request) {
 }
 
 
-PUBLIC void ucs2_configure (struct afb_req request) {
+PUBLIC void ucs2_initialise (struct afb_req request) {
     static UcsXmlVal_t *ucsConfig;
     static ucsContextT ucsContext;
 
@@ -473,7 +511,192 @@ PUBLIC void ucs2_configure (struct afb_req request) {
     return;
 }
 
-PUBLIC void ucs2_monitor (struct afb_req request) {
+
+// List Avaliable Configuration Files
+PUBLIC void ucs2_listconfig (struct afb_req request) {
+    struct json_object *queryJ, *tmpJ, *responseJ;
+    DIR  *dirHandle;
+    char *dirPath, *dirList;
+    int error=0;
+
+    queryJ = afb_req_json(request);
+    if (queryJ && json_object_object_get_ex (queryJ, "cfgpath" , &tmpJ)) {
+        strdup (json_object_get_string(tmpJ));
+    } else {    
+        dirList = strdup (UCS2_CFG_PATH); 
+        AFB_NOTICE ("fgpath:missing uses UCS2_CFG_PATH=%s", UCS2_CFG_PATH);
+    }
+
+    responseJ = json_object_new_array();
+    for (dirPath= strtok(dirList, ":"); dirPath && *dirPath; dirPath=strtok(NULL,":")) {
+         struct dirent *dirEnt;
+         
+        dirHandle = opendir (dirPath);
+        if (!dirHandle) {
+            AFB_NOTICE ("ucs2_listconfig dir=%s not readable", dirPath);
+            error++;
+            continue;
+        } 
+        
+        AFB_NOTICE ("ucs2_listconfig scanning: %s", dirPath);
+        while ((dirEnt = readdir(dirHandle)) != NULL) {
+            // Unknown type is accepted to support dump filesystems
+            if (dirEnt->d_type == DT_REG || dirEnt->d_type == DT_UNKNOWN) {
+                struct json_object *pathJ = json_object_new_object();
+                json_object_object_add(pathJ, "dirpath", json_object_new_string(dirPath));
+                json_object_object_add(pathJ, "basename", json_object_new_string(dirEnt->d_name));
+                json_object_array_add(responseJ, pathJ);
+            }
+        }
+    }
+    
+    free (dirList);
+   
+    if (!error)  afb_req_success(request,responseJ,NULL);
+    else {
+        char info[40];
+        snprintf (info, sizeof(info), "[%d] where not scanned", error); 
+         afb_req_success(request,responseJ, info);
+    } 
+    
+    return;
+}
+
+PUBLIC void ucs2_subscribe (struct afb_req request) {
+    
+    if (!eventData) {
+        
+        eventData = malloc(sizeof(EventData_t));
+        if (eventData) {
+            eventData->node_event = afb_daemon_make_event ("node-availibility");
+        }
+        
+        if (!eventData || !afb_event_is_valid(eventData->node_event)) {
+            afb_req_fail_f (request, "create-event", "Cannot create or register event");
+            goto OnExitError;
+        }
+    }
+    
+    if (afb_req_subscribe(request, eventData->node_event) != 0) {
+        
+        afb_req_fail_f (request, "subscribe-event", "Cannot subscribe to event");
+        goto OnExitError;
+    }
+    
+    afb_req_success(request,NULL,"event subscription successful"); 
+    
+OnExitError:
+    return;
+}
+
+STATIC void ucs2_writei2c_CB (void *result_ptr, void *request_ptr) {
+    
+    if (request_ptr){
+        afb_req *req = (afb_req *)request_ptr;
+        Ucs_I2c_ResultCode_t *res = (Ucs_I2c_ResultCode_t *)result_ptr;
+        
+        if (!res) {
+            afb_req_fail(*req, "processing","busy or lost initialization");
+        }
+        else if (*res != UCS_I2C_RES_SUCCESS){
+            afb_req_fail_f(*req, "error-result", "result code: %d", *res);
+        }
+        else {
+            afb_req_success(*req, NULL, "success");
+        }
+        
+        afb_req_unref(*req);
+        free(request_ptr);
+    } 
+    else {
+        AFB_NOTICE("write_i2c: ambiguous response data");
+    }
+}
+
+PUBLIC void ucs2_writei2c (struct afb_req request) {
+    
+    struct json_object *j_obj;
+    static uint8_t i2c_data[I2C_MAX_DATA_SZ];
+    uint8_t i2c_data_sz = 0;
+    uint16_t node_addr = 0;
+    struct afb_req *async_req_ptr = NULL;
+    
+    /* check UNICENS is initialised */
+    if (!ucsContextS) {
+        afb_req_fail_f(request, "unicens-init","Should Load Config before using setvol");
+        goto OnErrorExit;
+    }
+
+    j_obj = afb_req_json(request);
+    if (!j_obj) {
+        afb_req_fail_f(request, "query-notjson","query=%s not a valid json entry", afb_req_value(request,""));
+        goto OnErrorExit;
+    };
+    
+    node_addr = (uint16_t)json_object_get_int(json_object_object_get(j_obj, "node"));
+    AFB_NOTICE("node_address: 0x%02X", node_addr);
+    
+    if (node_addr == 0) {
+        afb_req_fail_f(request, "query-params","params wrong or missing");
+        goto OnErrorExit;
+    }
+       
+    if (json_object_get_type(json_object_object_get(j_obj, "data"))==json_type_array) {
+        int size = json_object_array_length(json_object_object_get(j_obj, "data"));
+        if ((size > 0) && (size <= I2C_MAX_DATA_SZ)) {
+            
+            int32_t i;
+            int32_t val;
+            struct json_object *j_elem;
+            struct json_object *j_arr = json_object_object_get(j_obj, "data");
+
+            for (i = 0; i < size; i++) {
+                
+                
+                j_elem = json_object_array_get_idx(j_arr, i);
+                val = json_object_get_int(j_elem);
+                if ((val < 0) && (val > 0xFF)){
+                    i = 0;
+                    break;
+                }
+                i2c_data[i] = (uint8_t)json_object_get_int(j_elem);
+            }
+            
+            i2c_data_sz = (uint8_t)i;
+        }
+    }
+    
+    if (i2c_data_sz == 0) {
+        AFB_NOTICE("data: invalid or not found");
+        afb_req_fail_f(request, "query-params","params wrong or missing");
+        goto OnErrorExit;
+    }
+    
+    async_req_ptr = malloc(sizeof(afb_req));
+    *async_req_ptr = request;
+    
+    if (UCSI_I2CWrite(  &ucsContextS->ucsiData,   /* UCSI_Data_t *pPriv*/
+                        node_addr,                /* uint16_t targetAddress*/
+                        false,                    /* bool isBurst*/
+                        0u,                       /* block count */
+                        0x2Au,                    /* i2c slave address */
+                        0x03E8u,                  /* timeout 1000 milliseconds */
+                        i2c_data_sz,              /* uint8_t dataLen */
+                        &i2c_data[0],             /* uint8_t *pData */
+                        &ucs2_writei2c_CB,        /* callback*/
+                        (void*)async_req_ptr      /* callback argument */
+                  )) {
+        /* asynchronous command is running */
+        afb_req_addref(request);
+    }
+    else {
+        AFB_NOTICE("i2c write: scheduling command failed");
+        afb_req_fail_f(request, "query-command-queue","command queue overload");
+        free(async_req_ptr);
+        async_req_ptr = NULL;
+        goto OnErrorExit;
+    }
     
-   afb_req_success(request,NULL,"UNICENS-to_be_done"); 
-}
\ No newline at end of file
+ OnErrorExit:
+    return;
+}