diff options
Diffstat (limited to 'USB_Host_Shield/examples/LCDkbd.pde')
| -rw-r--r-- | USB_Host_Shield/examples/LCDkbd.pde | 335 |
1 files changed, 0 insertions, 335 deletions
diff --git a/USB_Host_Shield/examples/LCDkbd.pde b/USB_Host_Shield/examples/LCDkbd.pde deleted file mode 100644 index 0f4dba1..0000000 --- a/USB_Host_Shield/examples/LCDkbd.pde +++ /dev/null @@ -1,335 +0,0 @@ -/* MAX3421E USB Host controller LCD/keyboard demonstration */
-#include <Spi.h>
-#include <Max3421e.h>
-#include <Usb.h>
-#include <Max_LCD.h>
-
-/* keyboard data taken from configuration descriptor */
-#define KBD_ADDR 1
-#define KBD_EP 1
-#define KBD_IF 0
-#define EP_MAXPKTSIZE 8
-#define EP_POLL 0x0a
-/**/
-//******************************************************************************
-// macros to identify special charaters(other than Digits and Alphabets)
-//******************************************************************************
-#define BANG (0x1E)
-#define AT (0x1F)
-#define POUND (0x20)
-#define DOLLAR (0x21)
-#define PERCENT (0x22)
-#define CAP (0x23)
-#define AND (0x24)
-#define STAR (0x25)
-#define OPENBKT (0x26)
-#define CLOSEBKT (0x27)
-
-#define RETURN (0x28)
-#define ESCAPE (0x29)
-#define BACKSPACE (0x2A)
-#define TAB (0x2B)
-#define SPACE (0x2C)
-#define HYPHEN (0x2D)
-#define EQUAL (0x2E)
-#define SQBKTOPEN (0x2F)
-#define SQBKTCLOSE (0x30)
-#define BACKSLASH (0x31)
-#define SEMICOLON (0x33)
-#define INVCOMMA (0x34)
-#define TILDE (0x35)
-#define COMMA (0x36)
-#define PERIOD (0x37)
-#define FRONTSLASH (0x38)
-#define DELETE (0x4c)
-/**/
-/* Modifier masks. One for both modifiers */
-#define SHIFT 0x22
-#define CTRL 0x11
-#define ALT 0x44
-#define GUI 0x88
-/**/
-/* "Sticky keys */
-#define CAPSLOCK (0x39)
-#define NUMLOCK (0x53)
-#define SCROLLLOCK (0x47)
-/* Sticky keys output report bitmasks */
-#define bmNUMLOCK 0x01
-#define bmCAPSLOCK 0x02
-#define bmSCROLLLOCK 0x04
-/**/
-EP_RECORD ep_record[ 2 ]; //endpoint record structure for the keyboard
-
-char buf[ 8 ] = { 0 }; //keyboard buffer
-char old_buf[ 8 ] = { 0 }; //last poll
-/* Sticky key state */
-bool numLock = false;
-bool capsLock = false;
-bool scrollLock = false;
-bool line = false;
-
-void setup();
-void loop();
-
-MAX3421E Max;
-USB Usb;
-Max_LCD LCD;
-
-void setup() {
- // set up the LCD's number of rows and columns:
- LCD.begin(16, 2);
- LCD.home();
- Serial.begin( 9600 );
- Serial.println("Start");
- Max.powerOn();
- delay( 200 );
-}
-
-void loop() {
- Max.Task();
- Usb.Task();
- if( Usb.getUsbTaskState() == USB_STATE_CONFIGURING ) { //wait for addressing state
- kbd_init();
- Usb.setUsbTaskState( USB_STATE_RUNNING );
- }
- if( Usb.getUsbTaskState() == USB_STATE_RUNNING ) { //poll the keyboard
- kbd_poll();
- }
-}
-/* Initialize keyboard */
-void kbd_init( void )
-{
- byte rcode = 0; //return code
-/**/
- /* Initialize data structures */
- ep_record[ 0 ] = *( Usb.getDevTableEntry( 0,0 )); //copy endpoint 0 parameters
- ep_record[ 1 ].MaxPktSize = EP_MAXPKTSIZE;
- ep_record[ 1 ].Interval = EP_POLL;
- ep_record[ 1 ].sndToggle = bmSNDTOG0;
- ep_record[ 1 ].rcvToggle = bmRCVTOG0;
- Usb.setDevTableEntry( 1, ep_record ); //plug kbd.endpoint parameters to devtable
- /* Configure device */
- rcode = Usb.setConf( KBD_ADDR, 0, 1 );
- if( rcode ) {
- Serial.print("Error attempting to configure keyboard. Return code :");
- Serial.println( rcode, HEX );
- while(1); //stop
- }
- /* Set boot protocol */
- rcode = Usb.setProto( KBD_ADDR, 0, 0, 0 );
- if( rcode ) {
- Serial.print("Error attempting to configure boot protocol. Return code :");
- Serial.println( rcode, HEX );
- while( 1 ); //stop
- }
- LCD.print("Keyboard initialized");
- delay(2000);
- LCD.clear();
- LCD.home();
- Serial.println("Keyboard initialized");
-}
-
-/* Poll keyboard and print result */
-/* buffer starts at position 2, 0 is modifier key state and 1 is irrelevant */
-void kbd_poll( void )
-{
- char i;
- static char leds = 0;
- byte rcode = 0; //return code
- /* poll keyboard */
- rcode = Usb.inTransfer( KBD_ADDR, KBD_EP, 8, buf );
- if( rcode != 0 ) {
- return;
- }//if ( rcode..
- for( i = 2; i < 8; i++ ) {
- if( buf[ i ] == 0 ) { //end of non-empty space
- break;
- }
- if( buf_compare( buf[ i ] ) == false ) { //if new key
- switch( buf[ i ] ) {
- case CAPSLOCK:
- capsLock =! capsLock;
- leds = ( capsLock ) ? leds |= bmCAPSLOCK : leds &= ~bmCAPSLOCK; // set or clear bit 1 of LED report byte
- break;
- case NUMLOCK:
- numLock =! numLock;
- leds = ( numLock ) ? leds |= bmNUMLOCK : leds &= ~bmNUMLOCK; // set or clear bit 0 of LED report byte
- break;
- case SCROLLLOCK:
- scrollLock =! scrollLock;
- leds = ( scrollLock ) ? leds |= bmSCROLLLOCK : leds &= ~bmSCROLLLOCK; // set or clear bit 2 of LED report byte
- break;
- case DELETE:
- LCD.clear();
- LCD.home();
- line = false;
- break;
- case RETURN:
- line =! line;
- LCD.setCursor( 0, line );
- break;
- default:
- //LCD.print("A"); //output
- LCD.print( HIDtoA( buf[ i ], buf[ 0 ] ));
- Serial.print(HIDtoA( buf[ i ], buf[ 0 ] ));
- break;
- }//switch( buf[ i ...
- rcode = Usb.setReport( KBD_ADDR, 0, 1, KBD_IF, 0x02, 0, &leds );
- if( rcode ) {
- Serial.print("Set report error: ");
- Serial.println( rcode, HEX );
- }//if( rcode ...
- }//if( buf_compare( buf[ i ] ) == false ...
- }//for( i = 2...
- for( i = 2; i < 8; i++ ) { //copy new buffer to old
- old_buf[ i ] = buf[ i ];
- }
-}
-/* compare byte against bytes in old buffer */
-bool buf_compare( byte data )
-{
- char i;
- for( i = 2; i < 8; i++ ) {
- if( old_buf[ i ] == data ) {
- return( true );
- }
- }
- return( false );
-}
-
-/* HID to ASCII converter. Takes HID keyboard scancode, returns ASCII code */
-byte HIDtoA( byte HIDbyte, byte mod )
-{
- /* upper row of the keyboard, numbers and special symbols */
- if( HIDbyte >= 0x1e && HIDbyte <= 0x27 ) {
- if(( mod & SHIFT ) || numLock ) { //shift key pressed
- switch( HIDbyte ) {
- case BANG: return( 0x21 );
- case AT: return( 0x40 );
- case POUND: return( 0x23 );
- case DOLLAR: return( 0x24 );
- case PERCENT: return( 0x25 );
- case CAP: return( 0x5e );
- case AND: return( 0x26 );
- case STAR: return( 0x2a );
- case OPENBKT: return( 0x28 );
- case CLOSEBKT: return( 0x29 );
- }//switch( HIDbyte...
- }
- else { //numbers
- if( HIDbyte == 0x27 ) { //zero
- return( 0x30 );
- }
- else {
- return( HIDbyte + 0x13 );
- }
- }//numbers
- }//if( HIDbyte >= 0x1e && HIDbyte <= 0x27
- /**/
- /* number pad. Arrows are not supported */
- if(( HIDbyte >= 0x59 && HIDbyte <= 0x61 ) && ( numLock == true )) { // numbers 1-9
- return( HIDbyte - 0x28 );
- }
- if(( HIDbyte == 0x62 ) && ( numLock == true )) { //zero
- return( 0x30 );
- }
- /* Letters a-z */
- if( HIDbyte >= 0x04 && HIDbyte <= 0x1d ) {
- if((( capsLock == true ) && ( mod & SHIFT ) == 0 ) || (( capsLock == false ) && ( mod & SHIFT ))) { //upper case
- return( HIDbyte + 0x3d );
- }
- else { //lower case
- return( HIDbyte + 0x5d );
- }
- }//if( HIDbyte >= 0x04 && HIDbyte <= 0x1d...
- /* Other special symbols */
- if( HIDbyte >= 0x2c && HIDbyte <= 0x38 ) {
- switch( HIDbyte ) {
- case SPACE: return( 0x20 );
- case HYPHEN:
- if(( mod & SHIFT ) == false ) {
- return( 0x2d );
- }
- else {
- return( 0x5f );
- }
- case EQUAL:
- if(( mod & SHIFT ) == false ) {
- return( 0x3d );
- }
- else {
- return( 0x2b );
- }
- case SQBKTOPEN:
- if(( mod & SHIFT ) == false ) {
- return( 0x5b );
- }
- else {
- return( 0x7b );
- }
- case SQBKTCLOSE:
- if(( mod & SHIFT ) == false ) {
- return( 0x5d );
- }
- else {
- return( 0x7d );
- }
- case BACKSLASH:
- if(( mod & SHIFT ) == false ) {
- return( 0x5c );
- }
- else {
- return( 0x7c );
- }
- case SEMICOLON:
- if(( mod & SHIFT ) == false ) {
- return( 0x3b );
- }
- else {
- return( 0x3a );
- }
- case INVCOMMA:
- if(( mod & SHIFT ) == false ) {
- return( 0x27 );
- }
- else {
- return( 0x22 );
- }
- case TILDE:
- if(( mod & SHIFT ) == false ) {
- return( 0x60 );
- }
- else {
- return( 0x7e );
- }
- case COMMA:
- if(( mod & SHIFT ) == false ) {
- return( 0x2c );
- }
- else {
- return( 0x3c );
- }
- case PERIOD:
- if(( mod & SHIFT ) == false ) {
- return( 0x2e );
- }
- else {
- return( 0x3e );
- }
- case FRONTSLASH:
- if(( mod & SHIFT ) == false ) {
- return( 0x2f );
- }
- else {
- return( 0x3f );
- }
- default:
- break;
- }//switch( HIDbyte..
- }//if( HIDbye >= 0x2d && HIDbyte <= 0x38..
- return( 0 );
-}
-
-
-
-
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