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view src/cs/drivers/drv_core/inth/inth.c @ 75:8697f358f505

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backlight rework: Condat light driver accepts levels The present change is another intermediate step on the path toward new FreeCalypso backlight handling. At this intermediate step the Condat light driver accepts 0-255 backlight levels driven by MFW, and puts them out on PWL on Luna development boards. At the same time on C139 it is now possible to turn on the display backlight with or without the keypad bl - the lsb of the 0-255 backlight level controls the keypad bl. MFW presently drives only 0 and 255 backlight levels, thus there is no visible behavioral change yet - but the plan for subsequent stages of this backlight rework is to add a dimmed backlight state (no keypad bl on C139) during active calls.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 24 Oct 2020 20:44:04 +0000
parents 4e78acac3d88
children
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/*******************************************************************************
            TEXAS INSTRUMENTS INCORPORATED PROPRIETARY INFORMATION           
                                                                             
   Property of Texas Instruments -- For  Unrestricted  Internal  Use  Only 
   Unauthorized reproduction and/or distribution is strictly prohibited.  This 
   product  is  protected  under  copyright  law  and  trade  secret law as an 
   unpublished work.  Created 1987, (C) Copyright 1997 Texas Instruments.  All 
   rights reserved.                                                            
                  
                                                           
   Filename       	: inth.c

   Description    	: inth.c saturn interupt handler

   Project        	: drivers

   Author         	: pmonteil@tif.ti.com  Patrice Monteil.

   Version number   : 1.15

   Date             : 05/23/03

   Previous delta 	: 12/19/00 14:39:21

   SCCS file      	: /db/gsm_asp/db_ht96/dsp_0/gsw/rel_0/mcu_l1/release_gprs/RELEASE_GPRS/drivers1/common/SCCS/s.inth.c

   Sccs Id  (SID)       : '@(#) inth.c 1.8 01/30/01 10:22:26 '

 
*****************************************************************************/

#include "l1sw.cfg"
#include "chipset.cfg"


#if (CHIPSET != 12)

#if (OP_L1_STANDALONE == 0)
  #include "main/sys_types.h"
#else
  #include "sys_types.h"
#endif
#include "memif/mem.h"
#include "inth.h"

/*--------------------------------------------------------------
 *  INTH_Ack()							
 *--------------------------------------------------------------
 * Parameters : num of it					
 * Return     :	none						
 * Functionality :Acknowledge an interrupt and return the origin
 *	of the interrupt (binary format)			
 *--------------------------------------------------------------*/

SYS_UWORD16 INTH_Ack (int intARM)
{
   if (intARM == INTH_IRQ)
	return((* (volatile SYS_UWORD16 *) INTH_B_IRQ_REG) & INTH_SRC_NUM);
   else
	return((* (volatile SYS_UWORD16 *) INTH_B_FIQ_REG) & INTH_SRC_NUM);
}
	
/*--------------------------------------------------------------
 *  INTH_GetPending()						
 *--------------------------------------------------------------
 * Parameters : none						
 * Return     :	none						
 * Functionality : Return the pending interrupts 		
 *--------------------------------------------------------------*/

#if ((CHIPSET == 4) || (CHIPSET == 5) || (CHIPSET == 6) || (CHIPSET == 7) || (CHIPSET == 8) || (CHIPSET == 9) || (CHIPSET == 10) || (CHIPSET == 11))
  unsigned long INTH_GetPending (void)
  {
    return((unsigned long)((* (volatile SYS_UWORD16 *) INTH_IT_REG1) | 
           ((* (volatile SYS_UWORD16 *) INTH_IT_REG2) << 16)));
  }		
#else
  unsigned short INTH_GetPending (void)
  {
    return(* (volatile SYS_UWORD16 *) INTH_IT_REG);
  }		
#endif

/*--------------------------------------------------------------
 *  INTH_InitLevel()
 *--------------------------------------------------------------
 * Parameters : num it,FIQ/IRQ,priority level,edge/level.
 * Return     :	none
 * Functionality : Initialize an interrupt
 *		   - put it on IRQ or FIQ
 *		   - set its priority level
 *						 		
 *--------------------------------------------------------------*/

void INTH_InitLevel (int inputInt, int FIQ_nIRQ, int priority, int edge)
{
   volatile SYS_UWORD16 *inthLevelReg = (SYS_UWORD16 *) INTH_EXT_REG; 

   inthLevelReg = inthLevelReg + inputInt;

#if ((CHIPSET == 4) || (CHIPSET == 5) || (CHIPSET == 6) || (CHIPSET == 7) || (CHIPSET == 8) || (CHIPSET == 9) || (CHIPSET == 10) || (CHIPSET == 11))
   *inthLevelReg = (FIQ_nIRQ | (edge << 1) | (priority << 2));
#else
   *inthLevelReg = (FIQ_nIRQ | (priority << 1) | (edge << 5));
#endif
}

/*--------------------------------------------------------------
 *  INTH_ResetIT()
 *--------------------------------------------------------------
 * Parameters : none
 * Return     :	none
 * Functionality : reset the inth it register
 *--------------------------------------------------------------*/

#if ((CHIPSET == 4) || (CHIPSET == 5) || (CHIPSET == 6) || (CHIPSET == 7) || (CHIPSET == 8) || (CHIPSET == 9) || (CHIPSET == 10) || (CHIPSET == 11))
  unsigned long INTH_ResetIT (void)
  {
    * (volatile SYS_UWORD16 *) INTH_IT_REG1 &= 0x0000; 
    * (volatile SYS_UWORD16 *) INTH_IT_REG2 &= 0x0000; 
    return((unsigned long)((* (volatile SYS_UWORD16 *) INTH_IT_REG1) | 
           ((* (volatile SYS_UWORD16 *) INTH_IT_REG2) << 16)));
  }
#else
  unsigned short INTH_ResetIT (void)
  {
    * (volatile SYS_UWORD16 *) INTH_IT_REG &= 0x0000; 
    return(* (volatile SYS_UWORD16 *) INTH_IT_REG);
  }
#endif


#endif /* endif chipset != 12 */