Difference Analysis Generated by HtmlDiff on 10/26/2004 1:34 PM  

Base file: C:\CY4632_RDK_1_21\Firmware\Source Code\RDK Keyboard\isr.c

Modified file: C:\CY4632_RDK_1_3\Firmware\Source Code\RDK Keyboard\isr.c

//--------------------------------------------------------------------------
//
// Interrupt Service Routines
//
//--------------------------------------------------------------------------
// $Archive: /WirelessUSB/WUSB Kits/CY4632 LS KBM RDK/DocSrc/CD_Root/Firmware/Source Code/RDK Keyboard/isr.c $
// $Modtime: 6/16/9/29/04 2:0519p $
// $Revision: 78 $
//--------------------------------------------------------------------------
//
// Copyright 2003-2004, Cypress Semiconductor Corporation.
//
// This software is owned by Cypress Semiconductor Corporation (Cypress)
// and is protected by and subject to worldwide patent protection (United
// States and foreign), United States copyright laws and international 
// treaty provisions. Cypress hereby grants to licensee a personal, 
// non-exclusive, non-transferable license to copy, use, modify, create 
// derivative works of, and compile the Cypress Source Code and derivative 
// works for the sole purpose of creating custom software in support of 
// licensee product to be used only in conjunction with a Cypress integrated 
// circuit as specified in the applicable agreement. Any reproduction, 
// modification, translation, compilation, or representation of this 
// software except as specified above is prohibited without the express 
// written permission of Cypress.
//
// Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND,EXPRESS OR IMPLIED, 
// WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
// Cypress reserves the right to make changes without further notice to the
// materials described herein. Cypress does not assume any liability arising
// out of the application or use of any product or circuit described herein.
// Cypress does not authorize its products for use as critical components in
// life-support systems where a malfunction or failure may reasonably be
// expected to result in significant injury to the user. The inclusion of
// Cypress’ product in a life-support systems application implies that the
// manufacturer assumes all risk of such use and in doing so indemnifies
// Cypress against all charges.
//
// Use may be limited by and subject to the applicable Cypress software
// license agreement.
//
//--------------------------------------------------------------------------

//--------------------------------------
// Included files
//--------------------------------------

#include "globalparams.h"
#include "ls_config.h"
#include "radio.h"
#include "bind.h"

//--------------------------------------
// Local Definitions and Types
//--------------------------------------

#define NUM_PORTS 2


//--------------------------------------
// Local Function Declarations
//--------------------------------------

void isr_set_port_ie(void);


//--------------------------------------
// Local Definitions
//--------------------------------------

KEYBOARD_ISR enabled_isrs;

UINT8 shadow[NUM_PORTS];

//--------------------------------------------------------------------------
// isr_gpio
//--------------------------------------------------------------------------

void isr_gpio(void)
{
    if( enabled_isrs & INT_RADIO )
    if( GPIO_ISR_RADIO_IE_PORT & GPIO_ISR_RADIO_INT )
    {
        gpio_isr_redirector(radio_rx_isr();
    }
    
    if( enabled_isrs & INT_KEYS )
    if( GPIO_ISR_KEYS_IE_PORT & GPIO_ISR_KEYS_INT )
    {
        UINT8 temp;
        
        // Read to clear interrupt
        temp = KB_ROW_PORT;
    
        // Indicate wakeup
        hid.status &= ~KEYBOARD_SLEEP;
        gpio_isr_redirector(keyboard_isr);
    }
  
    if( enabled_isrs & INT_BIND )
    {
#ifndef BIND_BASIC
        if (SW1_MASK & ~RADIO_PORT)
        {
            hid.status |= BIND_BUTTON;

            // Wait for button to be released.
            while (SW1_MASK & ~RADIO_PORT)
    if( GPIO_ISR_BIND_IE_PORT & GPIO_ISR_BIND_INT )
            {
                RADIO_PORT |= SW1_MASK;         
            }
        }
#endif // BIND_BASIC

        RADIO_PORT |= SW1_MASK;
        gpio_isr_redirector(bind_button_isr);
    }
}


//--------------------------------------------------------------------------
// isr_init
//--------------------------------------------------------------------------

void isr_init(void)
{
    // Disable GPIO Interrupts
    enabled_isrs    PRT0IE = 0;

    shadow[0] = 0x0;
    shadow[1] = 0x0;

    // Enable/disable GPIO pin interrupts based upon enabled_isrs
    isr_set_port_ie();

    // Disable the battery level GPIO pin interrupt
    BATT_LEV_PORT_IE = 0x0;
    PRT1IE = 0;
    PRT2IE = 0;
    PRT3IE = 0;
    PRT4IE = 0;
    PRT5IE = 0;

    // Enable GPIO and Sleep interrupt mask
    M8C_EnableIntMask(INT_MSK0, INT_MSK0_GPIO | INT_MSK0_SLEEP);
    
    // Enable global interrupt
    M8C_EnableGInt;
}


//--------------------------------------------------------------------------
// isr_enable
//--------------------------------------------------------------------------

void isr_enable(KEYBOARD_ISR isr)
{
    enabled_isrs |= isr;
    isr_set_port_ie();
}


//--------------------------------------------------------------------------
// isr_disable
//--------------------------------------------------------------------------

void isr_disable(KEYBOARD_ISR isr)
{
    enabled_isrs &= ~isr;
    isr_set_port_ie();
}


//--------------------------------------------------------------------------
// isr_is_enabled
//--------------------------------------------------------------------------

BOOL isr_is_enabled(KEYBOARD_ISR isr)
{
    return (enabled_isrs & isr) ? TRUE : FALSE;
}


//--------------------------------------------------------------------------
// isr_set_port_ie
//--------------------------------------------------------------------------

void isr_set_port_ie(void)
{
    // Radio interrupt
    if( enabled_isrs & INT_RADIO )
    {
        shadow[0] |= ( IRQ_MASK );
    }
    else
    {
        shadow[0] &= ~( IRQ_MASK );
    }

    // Bind interrupt
    if( enabled_isrs & INT_BIND )
    {
        shadow[0] |= ( SW1_MASK );
    }
    else
    {
        shadow[0] &= ~( SW1_MASK );
    }

    // Keys interrupts
    if( enabled_isrs & INT_KEYS )
    {
        shadow[1] |= ( ROW1_MASK | ROW2_MASK | ROW3_MASK | ROW4_MASK |
                       ROW5_MASK | ROW6_MASK | ROW7_MASK | ROW8_MASK );
    }
    else
    {
        shadow[1] = 0x0;
    }

    // Set interrupt enable registers
    RADIO_PORT_IE  = shadow[0];
    KB_ROW_PORT_IE = shadow[1];
}