//----------------------------------------------------------------------------//
#include "wifi/wifi_ind.h"
#include "wifi/wifi_conf.h"
#include "osdep_service.h"
#include "platform_stdlib.h"

/******************************************************
 *                    Constants
 ******************************************************/

#if CONFIG_DEBUG_LOG > 3
#define WIFI_INDICATE_MSG	1
#else 
#define WIFI_INDICATE_MSG	0
#endif
#define WIFI_MANAGER_STACKSIZE	400 // 1300
#define WIFI_MANAGER_PRIORITY		(0) //Actual priority is 4 since calling rtw_create_task
#define WIFI_MANAGER_Q_SZ	8

#define WIFI_EVENT_MAX_ROW	3
/******************************************************
 *                    Globals
 ******************************************************/

static event_list_elem_t event_callback_list[WIFI_EVENT_MAX][WIFI_EVENT_MAX_ROW];
#if CONFIG_WIFI_IND_USE_THREAD
static rtw_worker_thread_t wifi_worker_thread;
#endif

//----------------------------------------------------------------------------//
#if CONFIG_WIFI_IND_USE_THREAD
static rtw_result_t rtw_send_event_to_worker(int event_cmd, char *buf,
		int buf_len, int flags) {
	rtw_event_message_t message;
	int i;
	rtw_result_t ret = RTW_SUCCESS;
	char *local_buf = NULL;

	if (event_cmd >= WIFI_EVENT_MAX)
		return RTW_BADARG;

	for (i = 0; i < WIFI_EVENT_MAX_ROW; i++) {
		if (event_callback_list[event_cmd][i].handler == NULL)
			continue;

		message.function =
				(event_handler_t) event_callback_list[event_cmd][i].handler;
		message.buf_len = buf_len;
		if (buf_len) {
			local_buf = (char*) pvPortMalloc(buf_len);
			if (local_buf == NULL)
				return RTW_NOMEM;
			memcpy(local_buf, buf, buf_len);
			//debug_printf("Allocate %p(%d) for evcmd %d\n", local_buf, buf_len, event_cmd);
		}
		message.buf = local_buf;
		message.flags = flags;
		message.user_data = event_callback_list[event_cmd][i].handler_user_data;

		ret = rtw_push_to_xqueue(&wifi_worker_thread.event_queue, &message, 0);
		if (ret != RTW_SUCCESS) {
			if (local_buf) {
				warning_printf(
						"rtw_send_event_to_worker: enqueue cmd %d failed and free %p(%d)\n",
						event_cmd, local_buf, buf_len);
				vPortFree(local_buf);
			}
			break;
		}
	}
	return ret;
}
#else
static rtw_result_t rtw_indicate_event_handle(int event_cmd, char *buf, int buf_len, int flags)
{
	rtw_event_handler_t handle = NULL;
	int i;

	if(event_cmd >= WIFI_EVENT_MAX)
	return RTW_BADARG;

	for(i = 0; i < WIFI_EVENT_MAX_ROW; i++) {
		handle = event_callback_list[event_cmd][i].handler;
		if(handle == NULL)
		continue;
		handle(buf, buf_len, flags, event_callback_list[event_cmd][i].handler_user_data);
	}

	return RTW_SUCCESS;
}
#endif
#if 0 // test beacon
#include "gpio_api.h"   // mbed
extern gpio_t gpio_led;
#endif

void wifi_indication(WIFI_EVENT_INDICATE event, char *buf, int buf_len,
		int flags) {
	//
	// If upper layer application triggers additional operations on receiving of wext_wlan_indicate,
	// 		please strictly check current stack size usage (by using uxTaskGetStackHighWaterMark() ) 
	//		, and tries not to share the same stack with wlan driver if remaining stack space is 
	//		not available for the following operations. 
	//		ex: using semaphore to notice another thread.
	switch (event) {
	case WIFI_EVENT_DISCONNECT:
#if(WIFI_INDICATE_MSG>0)
		info_printf("%s: Disconnection indication received\n", __func__);
#endif
		break;
	case WIFI_EVENT_CONNECT:
		// For WPA/WPA2 mode, indication of connection does not mean data can be
		// 		correctly transmitted or received. Data can be correctly transmitted or
		// 		received only when 4-way handshake is done.
		// Please check WIFI_EVENT_FOURWAY_HANDSHAKE_DONE event
#if(WIFI_INDICATE_MSG>0)
		// Sample: return mac address
		if (buf != NULL && buf_len == 6) {
			info_printf(
					"%s: Connect indication received: %02x:%02x:%02x:%02x:%02x:%02x\n",
					__func__, buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
		}
#endif
		break;
	case WIFI_EVENT_FOURWAY_HANDSHAKE_DONE:
#if(WIFI_INDICATE_MSG>0)
		if (buf != NULL)
				info_printf("%s: %s\n", __func__, buf);
#endif
		break;
	case WIFI_EVENT_SCAN_RESULT_REPORT:
#if(WIFI_INDICATE_MSG>0)
		info_printf("%s: WIFI_EVENT_SCAN_RESULT_REPORT\n", __func__);
#endif
		break;
	case WIFI_EVENT_SCAN_DONE:
#if(WIFI_INDICATE_MSG>0)
		info_printf("%s: WIFI_EVENT_SCAN_DONE\n", __func__);
//#if CONFIG_DEBUG_LOG > 3
//			debug_printf("Time at start %d ms.\n", xTaskGetTickCount());
//#endif
#endif
		break;
	case WIFI_EVENT_RECONNECTION_FAIL:
#if(WIFI_INDICATE_MSG>0)
		info_printf("%s: %s\n", __func__, buf);
#endif
		break;
	case WIFI_EVENT_NO_NETWORK:
#if(WIFI_INDICATE_MSG>0)
		info_printf("%s: %s\n", __func__, buf);
#endif
		break;
#if CONFIG_ENABLE_P2P
	case WIFI_EVENT_SEND_ACTION_DONE:
#if(WIFI_INDICATE_MSG>0)
		info_printf("%s: %s\n", __func__);
#endif
		break;
	case WIFI_EVENT_RX_MGNT:
#if(WIFI_INDICATE_MSG>0)
		info_printf("%s: WIFI_EVENT_RX_MGNT\n", __func__);
#endif
		break;
#endif //CONFIG_ENABLE_P2P
	case WIFI_EVENT_STA_ASSOC:
#if(WIFI_INDICATE_MSG>0)
		info_printf("%s: %s\n", __func__);
#endif
		break;
	case WIFI_EVENT_STA_DISASSOC:
#if(WIFI_INDICATE_MSG>0)
		info_printf("%s: %s\n", __func__);
#endif
		break;
#ifdef CONFIG_WPS
		case WIFI_EVENT_STA_WPS_START:
#if(WIFI_INDICATE_MSG>0)
		info_printf("%s: WIFI_EVENT_STA_WPS_START\n", __func__);
#endif
		break;
		case WIFI_EVENT_WPS_FINISH:
#if(WIFI_INDICATE_MSG>0)
		info_printf("%s: WIFI_EVENT_WPS_FINISH\n", __func__);
#endif
		break;
		case WIFI_EVENT_EAPOL_RECVD:
#if(WIFI_INDICATE_MSG>0)
		info_printf("%s: WIFI_EVENT_EAPOL_RECVD\n", __func__);
#endif
		break;
#endif
	case WIFI_EVENT_BEACON_AFTER_DHCP:
#if(WIFI_INDICATE_MSG>1)
		info_printf("%s: WIFI_EVENT_BEACON_AFTER_DHCP\n", __func__);
#endif
#if 0 // test beacon
		gpio_write(&gpio_led, 1);
		gpio_write(&gpio_led, 0);
#endif			
		break;
	}

#if CONFIG_INIC_EN
	inic_indicate_event(event, buf, buf_len, flags);
#endif//CONFIG_INIC_EN

#if CONFIG_WIFI_IND_USE_THREAD
	rtw_send_event_to_worker(event, buf, buf_len, flags);
#else
	rtw_indicate_event_handle(event, buf, buf_len, flags);
#endif
}

void wifi_reg_event_handler(unsigned int event_cmds,
		rtw_event_handler_t handler_func, void *handler_user_data) {
	int i = 0, j = 0;
	if (event_cmds < WIFI_EVENT_MAX) {
		for (i = 0; i < WIFI_EVENT_MAX_ROW; i++) {
			if (event_callback_list[event_cmds][i].handler == NULL) {
				for (j = 0; j < WIFI_EVENT_MAX_ROW; j++) {
					if (event_callback_list[event_cmds][j].handler
							== handler_func) {
						return;
					}
				}
				event_callback_list[event_cmds][i].handler = handler_func;
				event_callback_list[event_cmds][i].handler_user_data =
						handler_user_data;
				return;
			}
		}
	}
}

void wifi_unreg_event_handler(unsigned int event_cmds,
		rtw_event_handler_t handler_func) {
	int i;
	if (event_cmds < WIFI_EVENT_MAX) {
		for (i = 0; i < WIFI_EVENT_MAX_ROW; i++) {
			if (event_callback_list[event_cmds][i].handler == handler_func) {
				event_callback_list[event_cmds][i].handler = NULL;
				event_callback_list[event_cmds][i].handler_user_data = NULL;
				return;
			}
		}
	}
}

void init_event_callback_list() {
	memset(event_callback_list, 0, sizeof(event_callback_list));
}

int wifi_manager_init() {
#if CONFIG_WIFI_IND_USE_THREAD
	rtw_create_worker_thread(&wifi_worker_thread,
	WIFI_MANAGER_PRIORITY,
	WIFI_MANAGER_STACKSIZE,
	WIFI_MANAGER_Q_SZ);
#endif
	return 0;
}

void rtw_wifi_manager_deinit() {
#if CONFIG_WIFI_IND_USE_THREAD
	rtw_delete_worker_thread(&wifi_worker_thread);
#endif
}