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mraa gpio din features (#929) 

* mraa-gpio-din: add iot2050 board

This patch adds iot2050 board in possible list of boards.

Signed-off-by: zengchao <chao.zeng@siemens.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Ivan Mikhaylov <ivan.mikhaylov@siemens.com>

* mraa-gpio-din: add cleanup on close

Required as nodejs will only lazily delete the node objects, and we may
race with the next user requesting the resources. ISR thread release.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Ivan Mikhaylov <ivan.mikhaylov@siemens.com>

* mraa-gpio-din: extend GPIO lines

Signed-off-by: zengchao <chao.zeng@siemens.com>
Signed-off-by: Ivan Mikhaylov <ivan.mikhaylov@siemens.com>

* mraa-gpio-din: add configurable GPIO mode for DIN

GPIO mode wasn't set correctly, it was set from Pinmuxes modes instead
of GPIO. Add way to control GPIO modes on DINs from Node-RED with
possible values from mraa : Strong, Hiz, Pull-down, Pull-up.

Signed-off-by: Ivan Mikhaylov <ivan.mikhaylov@siemens.com>

* mraa-gpio-din: add support for initial message from digital input

This allows to send out an initial message with the current digital pin
state on startup, simplifying initializations of certain flows.

Based on siemens/meta-iot2000@5fc2bbe patch 0003.

Signed-off-by: Ivan Mikhaylov <ivan.mikhaylov@siemens.com>
This commit is contained in:
Ivan Mikhaylov 2022-07-12 12:10:49 +03:00 committed by GitHub
parent 0b3b918528
commit 983dafff13
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 51 additions and 8 deletions
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30
hardware/intel/mraa-gpio-din.html
View File

@ -1,13 +1,15 @@
<script type="text/javascript">
RED.nodes.registerType('mraa-gpio-din',{
category: 'Intel gpio',
category: 'GPIO',
color: '#a6bbcf',
paletteLabel: 'digital',
defaults: {
name: {value:""},
pin: {value:"", required: true},
interrupt: {value:"", required: true}
interrupt: {value:"", required: true},
mode: {value:"", required: true},
initial: {value: false}
},
inputs:0,
outputs:1,
@ -30,6 +32,7 @@
if (data === 5) { t = "Raspberry Pi"; }
if (data === 6) { t = "Beaglebone"; }
if (data === 7) { t = "Banana"; }
if (data === 25) { t = "IOT2050"; }
$('#type-tip').text(t);
$('#node-input-pin').val(pinnow);
});
@ -59,6 +62,22 @@
<option value="11">D11</option>
<option value="12">D12</option>
<option value="13">D13</option>
<option value="14">D14</option>
<option value="15">D15</option>
<option value="16">D16</option>
<option value="17">D17</option>
<option value="18">D18</option>
<option value="19">D19</option>
</select>
</div>
<div class="form-row">
<label for="node-input-name"><i class="fa-level-up"></i> Mode</label>
<select type="text" id="node-input-mode" style="width: 250px;">
<option value='' disabled selected style='display:none;'>select mode</option>
<option value="0">Strong </option>
<option value="1">Pull-up </option>
<option value="2">Pull-down </option>
<option value="3">Hiz </option>
</select>
</div>
<div class="form-row">
@ -70,6 +89,11 @@
<option value="b">Both </option>
</select>
</div>
<div class="form-row" id="node-initial-tick">
<label>&nbsp;</label>
<input type="checkbox" id="node-input-initial" style="display: inline-block; width: auto; vertical-align: top;">
<label for="node-input-initial" style="width: 70%;">Send initial message with level of pin.</label>
</div>
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name" style="width: 250px;">
@ -78,7 +102,7 @@
</script>
<script type="text/x-red" data-help-name="mraa-gpio-din">
<p>A digital input pin for an Intel Galileo or Edison board.</p>
<p>A digital input pin for an Intel Galileo/Edison/Siemens IOT2050 board.</p>
<p>The <code>msg.payload</code> contains the value (0 or 1), and <code>msg.topic</code>
contains "{the_board_name}/D{the pin number}".</p>
</script>

29
hardware/intel/mraa-gpio-din.js
View File

@ -7,13 +7,16 @@ module.exports = function(RED) {
RED.nodes.createNode(this,n);
this.pin = n.pin;
this.interrupt = n.interrupt;
this.mode = n.mode;
this.initialMsg = n.initial;
this.x = new m.Gpio(parseInt(this.pin));
this.board = m.getPlatformName();
this.defaultTimeout = 100;
var node = this;
node.x.mode(m.PIN_GPIO);
node.x.mode(parseInt(this.mode));
node.x.dir(m.DIR_IN);
node.x.isr(m.EDGE_BOTH, function() {
var g = node.x.read();
var eventHandler = function(g) {
var msg = { payload:g, topic:node.board+"/D"+node.pin };
switch (g) {
case 0: {
@ -34,8 +37,15 @@ module.exports = function(RED) {
node.status({fill:"grey",shape:"ring",text:"unknown"});
}
}
});
switch (node.x.read()) {
}
var isrCallback = function() {
eventHandler(node.x.read());
}
node.x.isr(m.EDGE_BOTH, isrCallback);
var initialState = node.x.read();
switch (initialState) {
case 0: {
node.status({fill:"green",shape:"ring",text:"low"});
break;
@ -48,8 +58,17 @@ module.exports = function(RED) {
node.status({});
}
}
if (this.initialMsg) {
setTimeout(() => {
node.send( { payload: node.x.read(), topic:node.board+"/D"+node.pin } );
}, this.defaultTimeout);
}
this.on('close', function() {
node.x.isr(m.EDGE_BOTH, null);
node.x.isrExit();
node.x.close();
});
}
RED.nodes.registerType("mraa-gpio-din", gpioDin);