diff options
Diffstat (limited to 'Libraries/WiShield/examples/Flash')
| -rw-r--r-- | Libraries/WiShield/examples/Flash/Flash.pde | 89 | ||||
| -rw-r--r-- | Libraries/WiShield/examples/Flash/webserver.c | 125 |
2 files changed, 214 insertions, 0 deletions
diff --git a/Libraries/WiShield/examples/Flash/Flash.pde b/Libraries/WiShield/examples/Flash/Flash.pde new file mode 100644 index 0000000..1e5ad51 --- /dev/null +++ b/Libraries/WiShield/examples/Flash/Flash.pde @@ -0,0 +1,89 @@ +/* + * Web Server using Flash + * + * A simple web server example using the WiShield 2.0 + * that reads the manufacturing ID from the Flash and + * displays it on a webpage. + */ + +#include <WiShield.h> +#include <dataflash.h> + +#define WIRELESS_MODE_INFRA 1 +#define WIRELESS_MODE_ADHOC 2 + +#define FLASH_SLAVE_SELECT 7 +#define WIFI_SLAVE_SELECT 10 + +// Wireless configuration parameters ---------------------------------------- +unsigned char local_ip[] = {192,168,1,2}; // IP address of WiShield +unsigned char gateway_ip[] = {192,168,1,1}; // router or gateway IP address +unsigned char subnet_mask[] = {255,255,255,0}; // subnet mask for the local network +const prog_char ssid[] PROGMEM = {"ASYNCLABS"}; // max 32 bytes + +unsigned char security_type = 0; // 0 - open; 1 - WEP; 2 - WPA; 3 - WPA2 + +// WPA/WPA2 passphrase +const prog_char security_passphrase[] PROGMEM = {"12345678"}; // max 64 characters + +// WEP 128-bit keys +// sample HEX keys +prog_uchar wep_keys[] PROGMEM = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, // Key 0 + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Key 1 + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Key 2 + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // Key 3 + }; + +// setup the wireless mode +// infrastructure - connect to AP +// adhoc - connect to another WiFi device +unsigned char wireless_mode = WIRELESS_MODE_INFRA; + +unsigned char ssid_len; +unsigned char security_passphrase_len; +//--------------------------------------------------------------------------- + +unsigned char mfg_id[4]; + +void setup() +{ + initShield(); +} + +// This is the webpage that is served up by the webserver +const prog_char webpage[] PROGMEM = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n" + "<html><body style=\"margin:100px\">" + "<center>" + "<h1>Flash Mfg ID: 000 000 000</h1>" + "<form method=post action=\"/upload\" enctype=\"multipart/form-data\">" + "<b>FS Image Upload</b>" + "<p>" + "<input type=file name=i size=40> <input type=submit value=\"Upload\">" + "</form>" + "</center>" + "</body></html>"; + +void loop() +{ + dflash.read_id(mfg_id); + + WiFi.run(); +} + +void initShield() +{ + // there is some contention on the SPI between the flash and wifi chip, + // so disable both devices at the beginning until they are properly + // initialized by their respective libraries + pinMode(FLASH_SLAVE_SELECT, OUTPUT); + digitalWrite(FLASH_SLAVE_SELECT, HIGH); + pinMode(WIFI_SLAVE_SELECT, OUTPUT); + digitalWrite(WIFI_SLAVE_SELECT, HIGH); + + // now init dataflash + dflash.init(FLASH_SLAVE_SELECT); + + // now init wifi + WiFi.init(); +} + diff --git a/Libraries/WiShield/examples/Flash/webserver.c b/Libraries/WiShield/examples/Flash/webserver.c new file mode 100644 index 0000000..045b843 --- /dev/null +++ b/Libraries/WiShield/examples/Flash/webserver.c @@ -0,0 +1,125 @@ + +/****************************************************************************** + + Filename: webserver.h + Description: Webserver app for the WiShield 1.0 + + ****************************************************************************** + + TCP/IP stack and driver for the WiShield 1.0 wireless devices + + Copyright(c) 2009 Async Labs Inc. All rights reserved. + + This program is free software; you can redistribute it and/or modify it + under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation. + + This program is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., 59 + Temple Place - Suite 330, Boston, MA 02111-1307, USA. + + Contact Information: + <asynclabs@asynclabs.com> + + Author Date Comment + --------------------------------------------------------------- + AsyncLabs 05/29/2009 Initial version + + *****************************************************************************/ + +#include "uip.h" +#include <string.h> +#include "webserver.h" +#include "config.h" + +static int handle_connection(struct webserver_state *s); + +void webserver_init(void) +{ + uip_listen(HTONS(80)); +} + +void webserver_appcall(void) +{ + struct webserver_state *s = &(uip_conn->appstate); + + if(uip_connected()) { + PSOCK_INIT(&s->p, s->inputbuf, sizeof(s->inputbuf)); + } + + handle_connection(s); +} + +#define ISO_nl 0x0a +#define ISO_space 0x20 +#define ISO_slash 0x2f + +const char http_get[5] = {0x47, 0x45, 0x54, 0x20, }; /* "GET " */ + +unsigned short fill_buf(void* blk) +{ + unsigned short webpage_len; + char int_string[4]; + + webpage_len = (strlen_P(webpage)>uip_mss())?uip_mss():strlen_P(webpage); + + memcpy_P(uip_appdata, webpage, webpage_len); + + sprintf(int_string, "%X", mfg_id[0]); + memcpy(&uip_appdata[104], int_string, 2); + sprintf(int_string, "%X", mfg_id[1]); + memcpy(&uip_appdata[108], int_string, 2); + + return webpage_len; +} + +static int handle_connection(struct webserver_state *s) +{ + PSOCK_BEGIN(&s->p); + + // the incoming GET request will have the following format: + // GET / HTTP/1.1 .... + // we have to parse this string to determine the resource being requested + // if the requested resource is not the root webpage ('/') then, + // GET /<resource name> HTTP/1.1 .... + // we should parse the specific resource and react appropriately + + // read incoming data until we read a space character + PSOCK_READTO(&s->p, ISO_space); + + // parse the data to determine if it was a GET request + if(strncmp(s->inputbuf, http_get, 4) != 0) { + PSOCK_CLOSE_EXIT(&s->p); + } + + // continue reading until the next space character + PSOCK_READTO(&s->p, ISO_space); + + // determine the requested resource + // in this case, we check if the request was for the '/' root page + // AKA index.html + if(s->inputbuf[0] != ISO_slash) { + // request for unknown webpage, close and exit + PSOCK_CLOSE_EXIT(&s->p); + } + + if(s->inputbuf[1] != ISO_space) { + // request for unavailable resource + // not supported, modify to add support for additional resources + PSOCK_CLOSE_EXIT(&s->p); + } + + //PSOCK_SEND_STR(&s->p, "HTTP/1.1 200 OK\r\n"); + //PSOCK_SEND_STR(&s->p, "Content-Type: text/html\r\n"); + //PSOCK_SEND_STR(&s->p, "\r\n"); + //PSOCK_SEND_STR(&s->p, "Hello World, I am WiShield"); + //PSOCK_SEND_STR(&s->p, "<center><h1>Hello World!! I am WiShield</h1></center>"); + PSOCK_GENERATOR_SEND(&s->p, fill_buf, 0); + PSOCK_CLOSE(&s->p); + PSOCK_END(&s->p); +} |