patch-2.4.22 linux-2.4.22/arch/mips/galileo-boards/ev64120/cntmr.c

• Lines: 208
• Date: 1969-12-31 16:00:00.000000000 -0800
• Orig file: linux-2.4.21/arch/mips/galileo-boards/ev64120/cntmr.c
• Orig date: 2002-11-28 15:53:10.000000000 -0800

diff -urN linux-2.4.21/arch/mips/galileo-boards/ev64120/cntmr.c linux-2.4.22/arch/mips/galileo-boards/ev64120/cntmr.c
@@ -1,207 +0,0 @@
-/* cntmr.c - GT counters/timers functions */
-
-/* Copyright - Galileo technology. 9/3/2000 */
-
-/*
-DESCRIPTION
-This file contains function which serves the user with a complete interface
-to the GT internal counters and timers, please advise: each counter/timer unit
-can function only as a counter or a timer at current time.
-Counter/timer 0 is 32 bit wide.
-Counters/timers 1-3 are 24 bit wide.
-*/
-
-/* includes */
-
-#ifdef __linux__
-#include <asm/galileo/evb64120A/cntmr.h>
-#include <asm/galileo/evb64120A/core.h>
-#else
-#include "cntmr.h"
-#include "core.h"
-#endif
-
-/********************************************************************
-* cntTmrStart - Starts a counter/timer with given an initiate value.
-*
-* INPUTS:  unsigned int countNum - Selects one of the 8 counters/timers.
-*          unsigned int countValue - Initial value for count down.
-*          CNT_TMR_OP_MODES opMode - Set Mode, Counter or Timer.
-*
-* RETURNS: false if one of the parameters is erroneous, true otherwise.
-*********************************************************************/
-
-bool cntTmrStart(CNTMR_NUM countNum, unsigned int countValue,
-		 CNT_TMR_OP_MODES opMode)
-{
-	unsigned int command = 1;
-	unsigned int value;
-
-	if (countNum > LAST_CNTMR)
-		return false;
-	else {
-		GT_REG_READ(TIMER_COUNTER_CONTROL, &value);
-		cntTmrDisable(countNum);
-		GT_REG_WRITE((TIMER_COUNTER0 + (4 * countNum)),
-			     countValue);
-		command = command << countNum * 2;
-		value = value | command;
-		command = command << 1;
-		switch (opMode) {
-		case TIMER:	/* The Timer/Counter bit set to logic '1' */
-			value = value | command;
-			break;
-		case COUNTER:	/* The Timer/Counter bit set to logic '0' */
-			value = value & ~command;
-			break;
-		default:
-			return false;
-		}
-		GT_REG_WRITE(TIMER_COUNTER_CONTROL, value);
-		return true;
-	}
-}
-
-/********************************************************************
-* cntTmrDisable - Disables the timer/counter operation and return its
-*                 value.
-*
-* INPUTS:  unsigned int countNum - Selects one of the 8 counters/timers.
-* RETURNS: The counter/timer value (unsigned int), if any of the arguments are
-*          erroneous return 0.
-*********************************************************************/
-
-unsigned int cntTmrDisable(CNTMR_NUM countNum)
-{
-	unsigned int command = 1;
-	unsigned int regValue;
-	unsigned int value;
-
-	GT_REG_READ(TIMER_COUNTER_CONTROL, &value);
-	if (countNum > LAST_CNTMR)
-		return 0;
-	GT_REG_READ(TIMER_COUNTER0 + 4 * countNum, &regValue);
-	command = command << countNum * 2;	/* Disable the timer/counter */
-	value = value & ~command;
-	GT_REG_WRITE(TIMER_COUNTER_CONTROL, value);
-	return regValue;
-}
-
-/********************************************************************
-* cntTmrRead - Reads a timer or a counter value. (This operation can be
-*              perform while the counter/timer is active).
-*
-* RETURNS: The counter/timer value. If wrong input value, return 0.
-*********************************************************************/
-
-unsigned int cntTmrRead(CNTMR_NUM countNum)
-{
-	unsigned int value;
-	if (countNum > LAST_CNTMR)
-		return 0;
-	else
-		GT_REG_READ(TIMER_COUNTER0 + countNum * 4, &value);
-	return value;
-}
-
-/********************************************************************
-* cntTmrEnable - Set enable-bit of timer/counter.
-*                Be aware: If the counter/timer is active, this function
-*                          will terminate with an false.
-*
-* INPUTS:  unsigned int countNum - Selects one of the 8 counters/timers.
-* RETURNS: false if one of the parameters is erroneous, true otherwise.
-*********************************************************************/
-
-bool cntTmrEnable(CNTMR_NUM countNum)
-{
-	unsigned int command = 1;
-	unsigned int value;
-	GT_REG_READ(TIMER_COUNTER_CONTROL, &value);
-	if (countNum > LAST_CNTMR)
-		return false;
-	else {
-		command = command << countNum * 2;
-		if ((command & value) != 0)	/* ==> The counter/timer is enabled */
-			return false;	/* doesn't make sense to Enable an "enabled" counter */
-		value = value | command;
-		GT_REG_WRITE(TIMER_COUNTER_CONTROL, value);
-		return true;
-	}
-}
-
-/********************************************************************
-* cntTmrLoad - loading value for timer number countNum.
-*              Be aware: If this function try to load value to an enabled
-*                        counter/timer it terminate with false.
-*
-* INPUTS:  unsigned int countNum - Selects one of the 8 counters/timers.
-*          unsigned int countValue - The value for load the register.
-* RETURNS: false if one of the parameters is erroneous, true otherwise.
-*********************************************************************/
-
-bool cntTmrLoad(unsigned int countNum, unsigned int countValue)
-{
-	unsigned int command = 1;
-	unsigned int value;
-	GT_REG_READ(TIMER_COUNTER_CONTROL, &value);
-	if (countNum > LAST_CNTMR)
-		return false;
-	else {
-		command = command << countNum * 2;
-		value = value & command;
-		if (value != 0) {	/* ==> The counter/timer is enabled */
-			return false;	/* can't reload value when counter/timer is enabled */
-		} else {
-			GT_REG_WRITE((TIMER_COUNTER0 + (4 * countNum)),
-				     countValue);
-			return true;
-		}
-
-	}
-}
-
-/********************************************************************
-* cntTmrSetMode - Configurate the Mode of the channel to work as a counter
-*                 or as a timer. (for more details on the different between
-*                 those two modes is written in the Data Sheet).
-*                 NOTE: This function only set the counter/timer mode and
-*                 don't enable it.
-*                 Be aware: If this function try to load value to an enabled
-*                           counter/timer it terminate with false.
-*
-* INPUTS:  unsigned int countNum - Selects one of the 8 counters/timers.
-*          CNT_TMR_OP_MODES opMode - TIMER or COUNTER mode.
-* RETURNS: false if one of the parameters is erroneous true otherwise .
-*********************************************************************/
-
-bool cntTmrSetMode(CNTMR_NUM countNum, CNT_TMR_OP_MODES opMode)
-{
-	unsigned int command = 1;
-	unsigned int value;
-
-	GT_REG_READ(TIMER_COUNTER_CONTROL, &value);
-	if (countNum > LAST_CNTMR)
-		return false;
-	else {
-		command = command << countNum * 2;
-		value = value & command;
-		if (value != 0) {	/* ==> The counter/timer is enabled */
-			return false;	/* can't set the Mode when counter/timer is enabled */
-		} else {
-			command = command << 1;
-			switch (opMode) {
-			case TIMER:
-				value = value | command;	/* The Timer/Counter bit set to logic '1' */
-				break;
-			case COUNTER:
-				value = value & ~command;	/*The Timer/Counter bit set to logic '0' */
-				break;
-			default:
-				return false;
-			}
-			GT_REG_WRITE(TIMER_COUNTER_CONTROL, value);
-			return true;
-		}
-	}
-}