keyboard_task.h File Reference

#include "config.h"

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Defines
#define	Is_usb_report_ready()   (report_ready)
#define	Usb_set_report_not_ready()   (report_ready = 0)
#define	Usb_set_report_ready()   (report_ready = 1)
Functions
void	sof_action (void)
void	kbd_test_hit (void)

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Detailed Description

This file contains the function declarations - Compiler: IAR EWAVR and GNU GCC for AVR

• Supported devices: AT90USB162, AT90USB82

  Author:

  Atmel Corporation: http://www.atmel.com
  Support and FAQ: http://support.atmel.no/

Definition in file keyboard_task.h.

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Define Documentation

 

#define Is_usb_report_ready

(

)

(report_ready)

Definition at line 54 of file keyboard_task.h.

 

#define Usb_set_report_not_ready

(

)

(report_ready = 0)

Definition at line 55 of file keyboard_task.h.

 

#define Usb_set_report_ready

(

)

(report_ready = 1)

Definition at line 56 of file keyboard_task.h.

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Function Documentation

void kbd_test_hit

(

void

)

Chech keyboard key hit This function scans the keyboard keys and update the scan_key word. if a key is pressed, the key_hit bit is set to TRUE.

Definition at line 182 of file keyboard_task.c.

References FALSE, Is_btn_middle, Is_joy_down, Is_joy_left, Is_joy_right, Is_joy_up, key_hit, SIZEOF_USB_KEYS, transmit_no_key, TRUE, usb_data_to_send, usb_kbd_state, usb_key, usb_key_pointer, usb_keydown, usb_keyleft, usb_keyright, usb_keys, and usb_keyup.

{
   switch (usb_kbd_state)
   {
      case 0:
      if (Is_btn_middle())
      {
         usb_kbd_state = 1;
         usb_key_pointer = usb_keys;
         usb_data_to_send = SIZEOF_USB_KEYS;
      }
      else if (Is_joy_up())
      {
         usb_kbd_state = 1;
         usb_key_pointer = usb_keyup;
         usb_data_to_send = (Uint16)sizeof(usb_keyup);
      }    
      else if (Is_joy_down())
      {
         usb_kbd_state = 1;
         usb_key_pointer = usb_keydown;
        usb_data_to_send = (Uint16)sizeof(usb_keydown);
      }   
      else if (Is_joy_right())
      {
         usb_kbd_state = 1;
         usb_key_pointer = usb_keyright;
        usb_data_to_send = (Uint16)sizeof(usb_keyright);
      } 
      else if (Is_joy_left())
      {
         usb_kbd_state = 1;
         usb_key_pointer = usb_keyleft;
        usb_data_to_send = (Uint16)sizeof(usb_keyleft);
      }       
      
      break;

      case 1:
      if (usb_data_to_send != 0)
      {
         if ((key_hit == FALSE) && (transmit_no_key == FALSE))
         {
#ifndef __GNUC__
            usb_key = *usb_key_pointer++;
#else
            usb_key = pgm_read_byte_near(usb_key_pointer++);
#endif
            usb_data_to_send --;
            key_hit = TRUE;
         }
      }
      else
      {
         usb_kbd_state = 0;
      }
      break;
   }
}

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