Dwayne Dilbeck
Usb Device Interface, protocol, and programming homework #4 Audio Control device
Dependencies: C12832_lcd USBDevice mbed
Revision 0:69eb9d19fb91, committed 2013-07-30
- Comitter:
- jakowisp
- Date:
- Tue Jul 30 22:35:10 2013 +0000
- Child:
- 1:948ffad3284f
- Commit message:
- AudioControl Finctional
;
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/C12832_lcd.lib Tue Jul 30 22:35:10 2013 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/users/dreschpe/code/C12832_lcd/#c9afe58d786a
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/MyDisplayClass.cpp Tue Jul 30 22:35:10 2013 +0000
@@ -0,0 +1,74 @@
+#include "MyDisplayClass.h"
+
+MyDisplayClass::MyDisplayClass(){
+ lcd=new C12832_LCD();
+ volume=new bargraph(lcd,32);
+}
+
+void MyDisplayClass::drawNoConnection(C12832_LCD *lcd) {
+ lcd->fillrect(0, 31, 15,16, 0);
+ lcd->rect(0, 31, 15,16, 1);
+ lcd->line(2,29,13,18,1);
+ lcd->circle(7,24,4,1);
+}
+
+void MyDisplayClass::drawConnection(C12832_LCD *lcd) {
+ lcd->fillrect(0, 31, 15,16, 0);
+ lcd->rect(0, 31, 15,16, 1);
+ lcd->rect(5,26,10,21,1);
+ lcd->line(6,23,7,25,1);
+ lcd->line(7,25,14,17,1);
+}
+
+void MyDisplayClass::drawSuspend(C12832_LCD *lcd) {
+ lcd->fillrect(0, 31, 15,16, 0);
+ lcd->rect(0, 31, 15,16, 1);
+ lcd->line(4,20,11,20,1);
+ lcd->line(4,27,11,20,1);
+ lcd->line(4,27,11,27,1);
+}
+
+void MyDisplayClass::setLevel(int level){
+ volume->setLevel(level);
+ }
+
+void MyDisplayClass::setMaxLevel(int level){
+ volume->setMaxLevel(level);
+ }
+
+void MyDisplayClass::UpdateStatus(int state){
+ switch(state) {
+ case 2: drawSuspend(lcd); break;
+ case 3: drawConnection(lcd); break;
+ default: drawNoConnection(lcd); break;
+ }
+}
+
+void MyDisplayClass::UpdateTextStatus(int state){
+
+ lcd->locate(3,12);
+ lcd->printf(" ");
+ lcd->locate(3,12);
+ switch(state) {
+ case 2: lcd->printf("Suspended"); break;
+ case 3: lcd->printf("Normal"); break;
+ default: lcd->printf("Offline"); break;
+ }
+
+}
+
+void MyDisplayClass::update(int state,int features){
+ if((features&0x1) == 0x1)
+ if((features&0x2) == 0x2) {
+ volume->updateBargraph();
+ } else {
+ lcd->locate(3,3);
+ lcd->printf("Volume: %2d",volume->level);
+ }
+
+ if((features&0x2) == 0x2)
+ UpdateStatus(state);
+ else
+ UpdateTextStatus(state);
+}
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/MyDisplayClass.h Tue Jul 30 22:35:10 2013 +0000
@@ -0,0 +1,27 @@
+#ifndef MyDisplayClass_H
+#define MyDisplayClass_H
+
+#include "C12832_lcd.h"
+#include "bargraph.h"
+
+class MyDisplayClass {
+public:
+ MyDisplayClass(void);
+ void update(int state,int features);
+ void UpdateTextStatus(int state);
+ void UpdateStatus(int state);
+ void setLevel(int level);
+ void setMaxLevel(int level);
+
+private:
+ void drawSuspend(C12832_LCD *lcd);
+ void drawConnection(C12832_LCD *lcd);
+ void drawNoConnection(C12832_LCD *lcd);
+
+ C12832_LCD *lcd;
+ bargraph *volume;
+ //(&lcd,32);
+
+};
+
+#endif
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/USBAudioControl.cpp Tue Jul 30 22:35:10 2013 +0000
@@ -0,0 +1,50 @@
+#include "stdint.h"
+#include "USBAudioControl.h"
+
+void USBAudioControl::suspendStateChanged(unsigned int suspend){
+ if(callbackSuspendChange!=NULL)
+ (*callbackSuspendChange)(suspend);
+}
+
+unsigned int USBAudioControl::getConnectState(){
+ if (device.state != CONFIGURED)
+ return 0;
+ return 1;
+}
+
+uint8_t * USBAudioControl::reportDesc() {
+ static uint8_t reportDescriptor[] = {
+ USAGE_PAGE(2), 0x0c,0x00, // Consumer
+ USAGE(1), 0x01, // Remote Control
+ COLLECTION(1), 0x01, // Application
+ LOGICAL_MINIMUM(1), 0x00,
+ LOGICAL_MAXIMUM(1), 0x01,
+
+ USAGE(2), 0xe9,0x00, // Vol+
+ USAGE(2), 0xea,0x00, // Vol-
+ USAGE(2), 0xb5,0x00, // NextTrack
+ USAGE(2), 0xb6,0x00, // PrevTrack
+ USAGE(2), 0xcd,0x00, // Pause/play
+ REPORT_COUNT(1), 0x05,
+ REPORT_SIZE(1), 0x01,
+ INPUT(1), 0x02,
+ REPORT_COUNT(1), 0x03,
+ REPORT_SIZE(1), 0x01,
+ INPUT(1), 0x01,
+ LOGICAL_MINIMUM(1), 0x00, // logical minimum = 0
+ LOGICAL_MAXIMUM(2), 0xFF, 0x00, // logical maximum = 255
+ REPORT_SIZE(1), 0x08,
+ REPORT_COUNT(1), 0x01, // report count
+ USAGE(1), 0x02, // usage
+ OUTPUT(1), 0x02, // Output (array)
+ REPORT_COUNT(1), 0x01,
+ USAGE(1), 0x03,
+ FEATURE(2), 0x02, 0x01,
+ END_COLLECTION(0),
+ };
+ reportLength = sizeof(reportDescriptor);
+ return reportDescriptor;
+}
+
+
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/USBAudioControl.h Tue Jul 30 22:35:10 2013 +0000
@@ -0,0 +1,46 @@
+#ifndef USBaudiocontrol_H
+#define USBaudiocontrol_H
+
+#include "USBHID.h"
+
+
+/* Common usage */
+
+/**
+ *
+ * @endcode
+ */
+
+class USBAudioControl: public USBHID
+{
+ public:
+
+ /**
+ * Constructor
+ *
+ * @param vendor_id Your vendor_id (default: 0x1234)
+ * @param product_id Your product_id (default: 0x0001)
+ * @param product_release Your preoduct_release (default: 0x0001)
+ *
+ */
+ USBAudioControl( uint16_t vendor_id = 0x1234, uint16_t product_id = 0x0006, uint16_t product_release = 0x0001):
+ USBHID(1, 1, 1, vendor_id, product_id, product_release, false)
+ {
+ callbackSuspendChange=NULL;
+ };
+
+
+ /*
+ * To define the report descriptor. Warning: this method has to store the length of the report descriptor in reportLength.
+ *
+ * @returns pointer to the report descriptor
+ */
+ virtual uint8_t * reportDesc();
+
+ unsigned int getConnectState();
+ void (*callbackSuspendChange)(unsigned int connected);
+ virtual void suspendStateChanged(unsigned int suspend);
+
+};
+
+#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/USBDevice.lib Tue Jul 30 22:35:10 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/jakowisp/code/USBDevice/#00cd29199e0e
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/bargraph.cpp Tue Jul 30 22:35:10 2013 +0000
@@ -0,0 +1,55 @@
+ #include "bargraph.h"
+ bargraph::bargraph(C12832_LCD *inlcd,int maxlevelsIn,int Xin,int Yin,int widthIn,int heightIn){
+ lcd=inlcd;
+ level=0;
+ lastLevel=0;
+ if(maxlevelsIn<=32 && maxlevelsIn >=4)
+ maxlevels=maxlevelsIn;
+ else
+ maxlevels=32;
+ if(Xin>=0 && Xin<=127-maxlevels)
+ x=Xin;
+ else
+ x=0;
+ if(Yin>=0 && Yin<=31-maxlevels)
+ y=Yin;
+ else
+ y=0;
+ if(widthIn>maxlevels && widthIn<128)
+ width=widthIn-1;
+ else
+ width=127;
+ if(heightIn>=(maxlevels-1) && heightIn<31)
+ height=heightIn;
+ else
+ height=31;
+ leveladjust=(height+1)/maxlevels;
+ levelwidth=(width+1)/maxlevels;
+ }
+
+ void bargraph::setMaxLevel(int maxlevels){
+ lcd->fillrect(x, y, x+width,y+height, 0);
+ leveladjust=(height+1)/maxlevels;
+ levelwidth=(width+1)/maxlevels;
+ }
+
+ void bargraph::setLevel(int level){
+ this->level=level;
+ }
+
+ void bargraph::updateBargraph(){
+ if(lcd!=NULL) {
+ if(level!=lastLevel) {
+ for(int i = 0 ; i<lastLevel;i++) {
+ lcd->fillrect(x+levelwidth*(i), y, x+levelwidth*(i+1)-1, y+i*leveladjust, 0);
+ }
+ for(int i = 0 ; i<level;i++) {
+ lcd->fillrect(x+levelwidth*(i), y, x+levelwidth*(i+1)-1, y+i*leveladjust, 1);
+ }
+ lastLevel=level;
+ }
+ }
+ };
+
+
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/bargraph.h Tue Jul 30 22:35:10 2013 +0000
@@ -0,0 +1,25 @@
+#include "C12832_lcd.h"
+
+class bargraph {
+public:
+ bargraph(C12832_LCD *inlcd,int maxlevelsIn=32,int Xin=0,int Yin=0,int widthIn=128,int heightIn=32);
+
+ int level;
+ void updateBargraph();
+ void setMaxLevel(int maxlevels);
+ void setLevel(int level);
+
+private:
+ int x;
+ int y;
+ int width;
+ int height;
+ int maxlevels;
+ int leveladjust;
+ int levelwidth;
+ int lastLevel;
+
+ C12832_LCD *lcd;
+};
+
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Jul 30 22:35:10 2013 +0000
@@ -0,0 +1,77 @@
+#include "mbed.h"
+
+#include "USBAudioControl.h"
+#include "MyDisplayClass.h"
+
+#define PAUSEKEY 16
+#define NUMSECONDSTOHOLD 5
+
+BusIn btnArray(p15,p12,p13,p16,p14);
+DigitalOut toggle(LED1);
+
+MyDisplayClass display;
+USBAudioControl hid(0x1234,0x0006,0x0001);
+HID_REPORT tempReport;
+
+unsigned int features=0;
+unsigned int USBstate=0;
+
+void SetLevel(HID_REPORT *report){
+ display.setLevel(report->data[0]);
+}
+
+void SetFeatures(HID_REPORT *report){
+ features=(report->data[1]&0x30)>>4;
+ display.setMaxLevel((report->data[1]&0x0f)<<2);
+}
+
+void WriteConnectedBit(unsigned int connected){
+ USBstate = (connected << 1) | (USBstate & 0x1);
+}
+
+void WriteSuspendBit(unsigned int suspend){
+ USBstate = (suspend) | (USBstate & 0x2);
+}
+
+void PollInputs(HID_REPORT *tempReport) {
+ tempReport->data[0]=btnArray;
+}
+
+void CheckForHeldPauseKey(HID_REPORT * tempreport, USBAudioControl * hid, DigitalOut * toggle){
+ static int holdCount=0;
+
+ //Provide Feedback to user holding the key by flashing an LED when the key is held
+ *toggle=(holdCount>0)?(holdCount /5)%2 :0;
+ //Count how long the PAUSEKEY is held
+ if(tempReport.data[0]==PAUSEKEY) {
+ holdCount++;
+ } else
+ holdCount=0;
+ //If Key is held # of seconds, The hid will diconnect/connect the USB device
+ if(holdCount>=NUMSECONDSTOHOLD*10) {
+ holdCount=0;
+ if(hid->getConnectState()) {
+ hid->disconnect();
+ } else
+ hid->connect();
+ }
+}
+
+int main() {
+
+ hid.callbackSetOutputReport=&SetLevel;
+ hid.callbackSetFeatureReport=&SetFeatures;
+ hid.callbackSuspendChange=&WriteSuspendBit;
+ tempReport.length=1;
+
+ while(1) {
+ PollInputs(&tempReport);
+ WriteConnectedBit(hid.getConnectState());
+ CheckForHeldPauseKey(&tempReport,&hid,&toggle);
+ hid.FillInputReport(&tempReport);
+ display.update(USBstate,features);
+ wait(0.1);
+ }
+}
+
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Tue Jul 30 22:35:10 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/b3110cd2dd17 \ No newline at end of file