From 279da6dcefaa9432c1955d28399baf591f2a78f5 Mon Sep 17 00:00:00 2001
From: Thorsten von Eicken <tve@rightscale.com>
Date: Mon, 15 Jun 2015 00:21:41 -0700
Subject: [PATCH] added UI to change pin assignments

---
 html/home.tpl    | 81 +++++++++++++++++++++++++++++++++++++++++++++---
 html/style.css   | 18 +++++++++++
 user/cgipins.c   | 64 ++++++++++++++++++++++++++++++++++++++
 user/cgipins.h   |  8 +++++
 user/user_main.c |  2 ++
 5 files changed, 169 insertions(+), 4 deletions(-)
 create mode 100644 user/cgipins.c
 create mode 100644 user/cgipins.h

diff --git a/html/home.tpl b/html/home.tpl
index 7d33306..32f02e1 100644
--- a/html/home.tpl
+++ b/html/home.tpl
@@ -4,13 +4,86 @@
       <h2 id="version"></h2>
     </div>
 
-    <div class="content">
-      <p>The ESP Link bridges the ESP8266 serial port to Wifi and it can
-      program microcontrollers over the serial port, in particular Arduinos, AVRs, and
-      NXP's LPC800-series ARM processors.</p>
+		<div class="content">
+			<div class="pure-g">
+				<div class="pure-u-24-24"><div class="card">
+					<p>The ESP Link bridges the ESP8266 serial port to Wifi and it can
+					program microcontrollers over the serial port, in particular Arduinos, AVRs, and
+					NXP's LPC800-series ARM processors.</p>
+				</div></div>
+			</div>
+			<div class="pure-g">
+				<div class="pure-u-12-24"><div class="card">
+					<h1>Wifi summary</h2>
+					<div id="wifi-spinner" class="spinner spinner-small"></div>
+					<table id="wifi-table" class="pure-table pure-table-horizontal" hidden><tbody>
+					<tr><td>WiFi mode</td><td id="wifi-mode"></td></tr>
+					<tr><td>Configured network</td><td id="wifi-ssid"></td></tr>
+					<tr><td>Wifi status</td><td id="wifi-status"></td></tr>
+					<tr><td>Wifi address</td><td id="wifi-ip"></td></tr>
+					</tbody> </table>
+				</div></div>
+				<div class="pure-u-12-24"><div class="card">
+					<h1>Pin assignment</h2>
+					<legend>Select one of the following signal/pin assignments to match your hardware</legend>
+					<fieldset class='radios' id='pin-mux'>
+						<div class="spinner spinner-small"></div>
+					</fieldset>
+				</div></div>
+			</div>
     </div>
   </div>
 </div>
 
 <script src="ui.js"></script>
+<script type="text/javascript">
+
+var currPin;
+// pin={reset:12, isp:13, LED_conn:0, LED_ser:2}
+function createInputForPin(pin) {
+  var input = document.createElement("input");
+  input.type = "radio";
+  input.name = "pins";
+  input.value= pin.value;
+  input.id   = "opt-" + pin.value;
+	input.onclick = "setPins("+pin.value+", '"+pin.name+"')";
+  if (currPin == pin.value) input.checked = "1";
+
+	var descr = m('<label for="opt-'+pin.value+'"><b>'+pin.name+":</b>"+pin.descr+"</label>");
+	descr.for = "opt-" + pin.value;
+	var div = document.createElement("div");
+	div.appendChild(input);
+	div.appendChild(descr);
+	return div;
+}
+
+function displayPins(resp) {
+	var po = $("#pin-mux");
+	po.innerHTML = "";
+	currPin = resp.curr;
+	resp.map.forEach(function(v) {
+		po.appendChild(createInputForPin(v));
+	});
+}
+
+function fetchPins() {
+  ajaxJson("GET", "/pins", displayPins, function() {
+		window.setTimeout(fetchPins, 1000);
+	});
+}
+
+function setPins(v, name) {
+  ajaxJson("POST", "/pins?value="+v, function() {
+		showNotification("Pin assignment changed to " + name);
+	}, function() {
+		showNotification("Pin assignment change failed");
+		window.setTimeout(fetchPins, 100);
+	});
+}
+
+window.onload=function(e) {
+	fetchPins();
+  //$("#pinform").onsubmit = setPins;
+};
+</script>
 </body></html>
diff --git a/html/style.css b/html/style.css
index 6198f73..0765241 100644
--- a/html/style.css
+++ b/html/style.css
@@ -21,6 +21,24 @@ body {
 #aps label div {
 	display: inline-block;
 	margin: 0em 0.2em;
+	vertical-align: top;
+}
+fieldset.radios {
+	border: none;
+	padding-left: 0px;
+}
+fieldset fields {
+	clear: both;
+}
+#pin-mux input {
+	display: block;
+	margin-top: 0.4em;
+	float: left;
+}
+#pin-mux label {
+	display: block;
+	margin: 0em 0.2em 0em 2em;
+	width: 90%;
 }
 
 .pure-table td, .pure-table th {
diff --git a/user/cgipins.c b/user/cgipins.c
new file mode 100644
index 0000000..ade7068
--- /dev/null
+++ b/user/cgipins.c
@@ -0,0 +1,64 @@
+
+#include <esp8266.h>
+#include "cgi.h"
+#include "espfs.h"
+
+static char *map_names[] = {
+  "esp-bridge", "jn-esp-v2", "esp-01"
+};
+static char* map_func[] = { "reset", "isp", "conn_led", "ser_led" };
+static uint8_t map_asn[][4] = {
+  { 12, 13,  0, 14 },  // esp-bridge
+  { 12, 13,  0,  2 },  // jn-esp-v2
+  {  0,  2, 12, 13 },  // esp-01
+};
+
+// Cgi to return choice of pin assignments
+int ICACHE_FLASH_ATTR cgiPinsGet(HttpdConnData *connData) {
+	char buff[1024];
+  int len;
+
+	if (connData->conn==NULL) {
+		return HTTPD_CGI_DONE; // Connection aborted
+	}
+
+  len = os_sprintf(buff, "{ \"curr\":\"esp-bridge\", \"map\": [ ");
+  for (int i=0; i<sizeof(map_names)/sizeof(char*); i++) {
+    if (i != 0) buff[len++] = ',';
+    len += os_sprintf(buff+len, "\n{ \"value\":%d, \"name\":\"%s\"", i, map_names[i]);
+    for (int f=0; f<sizeof(map_func)/sizeof(char*); f++) {
+      len += os_sprintf(buff+len, ", \"%s\":%d", map_func[f], map_asn[i][f]);
+    }
+    len += os_sprintf(buff+len, ", \"descr\":\"");
+    for (int f=0; f<sizeof(map_func)/sizeof(char*); f++) {
+      len += os_sprintf(buff+len, " %s:gpio%d", map_func[f], map_asn[i][f]);
+    }
+    len += os_sprintf(buff+len, "\" }");
+  }
+  len += os_sprintf(buff+len, "\n] }");
+
+	jsonHeader(connData, 200);
+	httpdSend(connData, buff, len);
+	return HTTPD_CGI_DONE;
+}
+
+// Cgi to change choice of pin assignments
+int ICACHE_FLASH_ATTR cgiPinsSet(HttpdConnData *connData) {
+	if (connData->conn==NULL) {
+		return HTTPD_CGI_DONE; // Connection aborted
+	}
+
+	jsonHeader(connData, 200);
+	return HTTPD_CGI_DONE;
+}
+
+int ICACHE_FLASH_ATTR cgiPins(HttpdConnData *connData) {
+	if (connData->requestType == HTTPD_METHOD_GET) {
+		return cgiPinsGet(connData);
+	} else if (connData->requestType == HTTPD_METHOD_POST) {
+		return cgiPinsSet(connData);
+	} else {
+		jsonHeader(connData, 404);
+		return HTTPD_CGI_DONE;
+	}
+}
diff --git a/user/cgipins.h b/user/cgipins.h
new file mode 100644
index 0000000..53e46cb
--- /dev/null
+++ b/user/cgipins.h
@@ -0,0 +1,8 @@
+#ifndef CGIPINS_H
+#define CGIPINS_H
+
+#include "httpd.h"
+
+int cgiPins(HttpdConnData *connData);
+
+#endif
diff --git a/user/user_main.c b/user/user_main.c
index 134653c..98aa550 100644
--- a/user/user_main.c
+++ b/user/user_main.c
@@ -15,6 +15,7 @@
 #include "httpdespfs.h"
 #include "cgi.h"
 #include "cgiwifi.h"
+#include "cgipins.h"
 #include "cgiflash.h"
 #include "auth.h"
 #include "espfs.h"
@@ -86,6 +87,7 @@ HttpdBuiltInUrl builtInUrls[]={
 	{"/wifi/connect", cgiWiFiConnect, NULL},
 	{"/wifi/connstatus", cgiWiFiConnStatus, NULL},
 	{"/wifi/setmode", cgiWiFiSetMode, NULL},
+	{"/pins", cgiPins, NULL},
 
 	{"*", cgiEspFsHook, NULL}, //Catch-all cgi function for the filesystem
 	{NULL, NULL, NULL}