first commit and add gitignore, README.md

component/common/example/wlan_fast_connect/example_wlan_fast_connect.c

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+/******************************************************************************
+ *
+ * Copyright(c) 2007 - 2015 Realtek Corporation. All rights reserved.
+ *
+ *
+ ******************************************************************************/
+
+ /** @file
+
+	This example demonstrate how to implement wifi fast reconnection
+**/
+#include <platform_opts.h>
+#include <wlan_fast_connect/example_wlan_fast_connect.h>
+
+
+#include "task.h"
+#include <platform/platform_stdlib.h>
+#include <wifi/wifi_conf.h>
+#include "flash_api.h"
+
+write_reconnect_ptr p_write_reconnect_ptr;
+
+extern void fATW0(void *arg);
+extern void fATW1(void *arg);
+extern void fATW2(void *arg);
+extern void fATWC(void *arg);
+
+/*
+* Usage:
+*       wifi connection indication trigger this function to save current
+*       wifi profile in flash
+*
+* Condition: 
+*       CONFIG_EXAMPLE_WLAN_FAST_CONNECT flag is set
+*/
+
+int wlan_wrtie_reconnect_data_to_flash(u8 *data, uint32_t len)
+{
+	flash_t flash;
+	struct wlan_fast_reconnect read_data = {0};
+	if(!data)
+            return -1;
+
+	flash_stream_read(&flash, FAST_RECONNECT_DATA, sizeof(struct wlan_fast_reconnect), (u8 *) &read_data);
+
+	//wirte it to flash if different content: SSID, Passphrase, Channel, Security type
+	if(memcmp(data, (u8 *) &read_data, sizeof(struct wlan_fast_reconnect)) != 0) {
+	    printf("\r\n %s():not the same ssid/passphrase/channel, write new profile to flash", __func__);
+	    flash_erase_sector(&flash, FAST_RECONNECT_DATA);
+	    flash_stream_write(&flash, FAST_RECONNECT_DATA, len, (uint8_t *) data);
+	}
+
+	return 0;
+}
+
+/*
+* Usage:
+*       After wifi init done, waln driver call this function to check whether
+*       auto-connect is required.
+*
+*       This function read previous saved wlan profile in flash and execute connection.
+*
+* Condition: 
+*       CONFIG_EXAMPLE_WLAN_FAST_CONNECT flag is set
+*/
+int wlan_init_done_callback()
+{
+	flash_t		flash;
+	struct wlan_fast_reconnect *data;
+	uint32_t	channel;
+	uint32_t    security_type;
+	uint8_t     pscan_config;
+	char key_id[2] = {0};
+
+#if CONFIG_AUTO_RECONNECT
+	//setup reconnection flag
+	wifi_set_autoreconnect(1);
+#endif
+	data = (struct wlan_fast_reconnect *)rtw_zmalloc(sizeof(struct wlan_fast_reconnect));
+	if(data){
+	    flash_stream_read(&flash, FAST_RECONNECT_DATA, sizeof(struct wlan_fast_reconnect), (uint8_t *)data);
+	    if(*((uint32_t *) data) != ~0x0){
+		    memcpy(psk_essid, data->psk_essid, sizeof(data->psk_essid));
+		    memcpy(psk_passphrase, data->psk_passphrase, sizeof(data->psk_passphrase));
+		    memcpy(wpa_global_PSK, data->wpa_global_PSK, sizeof(data->wpa_global_PSK));
+		    channel = data->channel;
+		    sprintf(key_id,"%d",(char) (channel>>28));
+		    channel &= 0xff;
+		    security_type = data->security_type;
+		    pscan_config = PSCAN_ENABLE | PSCAN_FAST_SURVEY;
+		    //set partial scan for entering to listen beacon quickly
+		    wifi_set_pscan_chan((uint8_t *)&channel, &pscan_config, 1);
+		    
+		    //set wifi connect
+		    switch(security_type){
+	            case RTW_SECURITY_OPEN:
+	                fATW0((char*)psk_essid);
+	                break;
+	            case RTW_SECURITY_WEP_PSK:
+	                fATW0((char*)psk_essid);
+	                fATW1((char*)psk_passphrase);
+	                fATW2(key_id);
+	                break;
+	            case RTW_SECURITY_WPA_TKIP_PSK:
+	            case RTW_SECURITY_WPA2_AES_PSK:
+	                fATW0((char*)psk_essid);
+	                fATW1((char*)psk_passphrase);
+	                break;
+	            default:
+	                break;
+		    }
+		    fATWC(NULL);
+	    }
+	    rtw_mfree(data);
+	}
+
+	return 0;
+}
+
+
+void example_wlan_fast_connect()
+{
+	// Call back from wlan driver after wlan init done
+	p_wlan_init_done_callback = wlan_init_done_callback;
+
+	// Call back from application layer after wifi_connection success
+	p_write_reconnect_ptr = wlan_wrtie_reconnect_data_to_flash;
+
+}

component/common/example/wlan_fast_connect/example_wlan_fast_connect.h

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+#ifndef __EXAMPLE_FAST_RECONNECTION_H__
+#define __EXAMPLE_FAST_RECONNECTION_H__
+
+
+/******************************************************************************
+ *
+ * Copyright(c) 2007 - 2015 Realtek Corporation. All rights reserved.
+ *
+ *
+ ******************************************************************************/
+#include "FreeRTOS.h"
+#include <autoconf.h>
+
+#define IW_PASSPHRASE_MAX_SIZE 64
+#define FAST_RECONNECT_DATA (0x80000 - 0x1000)
+#define NDIS_802_11_LENGTH_SSID         32
+#define A_SHA_DIGEST_LEN		20
+
+
+struct wlan_fast_reconnect {
+	unsigned char psk_essid[NDIS_802_11_LENGTH_SSID + 4];
+	unsigned char psk_passphrase[IW_PASSPHRASE_MAX_SIZE + 1];
+	unsigned char wpa_global_PSK[A_SHA_DIGEST_LEN * 2];
+	uint32_t	channel;
+	uint32_t    security_type;
+};
+
+
+
+typedef int (*wlan_init_done_ptr)(void);
+typedef int (*write_reconnect_ptr)(uint8_t *data, uint32_t len);
+
+
+//Variable
+extern unsigned char psk_essid[NET_IF_NUM][NDIS_802_11_LENGTH_SSID+4];
+extern unsigned char psk_passphrase[NET_IF_NUM][IW_PASSPHRASE_MAX_SIZE + 1];
+extern unsigned char wpa_global_PSK[NET_IF_NUM][A_SHA_DIGEST_LEN * 2];
+extern unsigned char psk_passphrase64[IW_PASSPHRASE_MAX_SIZE + 1];
+
+//Function
+extern wlan_init_done_ptr p_wlan_init_done_callback;
+extern write_reconnect_ptr p_write_reconnect_ptr;
+ 
+void example_wlan_fast_connect(void);
+
+#endif //#ifndef __EXAMPLE_FAST_RECONNECTION_H__