8a3fb8607a
The csp/*.h headers get into the way of multiplatform kernels and are generally not needed anyway. This removes the ones that are completely free of content and moves the other ones to mach/csp/, which already holds a bunch of these. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
61 lines
2 KiB
C
61 lines
2 KiB
C
/*****************************************************************************
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* Copyright 2003 - 2008 Broadcom Corporation. All rights reserved.
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*
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* Unless you and Broadcom execute a separate written software license
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* agreement governing use of this software, this software is licensed to you
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* under the terms of the GNU General Public License version 2, available at
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* http://www.broadcom.com/licenses/GPLv2.php (the "GPL").
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*
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* Notwithstanding the above, under no circumstances may you combine this
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* software in any way with any other Broadcom software provided under a
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* license other than the GPL, without Broadcom's express prior written
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* consent.
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*****************************************************************************/
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#include <linux/types.h>
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#include <linux/module.h>
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#include <mach/csp/tmrHw.h>
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#include <mach/timer.h>
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/* The core.c file initializes timers 1 and 3 as a linux clocksource. */
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/* The real time clock should probably be the real linux clocksource. */
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/* In the meantime, this file should agree with core.c as to the */
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/* profiling timer. If the clocksource is moved to rtc later, then */
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/* we can init the profiling timer here instead. */
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/* Timer 1 provides 25MHz resolution syncrhonized to scheduling and APM timing */
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/* Timer 3 provides bus freqeuncy sychronized to ACLK, but spread spectrum will */
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/* affect synchronization with scheduling and APM timing. */
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#define PROF_TIMER 1
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timer_tick_rate_t timer_get_tick_rate(void)
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{
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return tmrHw_getCountRate(PROF_TIMER);
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}
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timer_tick_count_t timer_get_tick_count(void)
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{
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return tmrHw_GetCurrentCount(PROF_TIMER); /* change downcounter to upcounter */
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}
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timer_msec_t timer_ticks_to_msec(timer_tick_count_t ticks)
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{
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static int tickRateMsec;
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if (tickRateMsec == 0) {
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tickRateMsec = timer_get_tick_rate() / 1000;
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}
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return ticks / tickRateMsec;
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}
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timer_msec_t timer_get_msec(void)
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{
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return timer_ticks_to_msec(timer_get_tick_count());
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}
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EXPORT_SYMBOL(timer_get_tick_count);
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EXPORT_SYMBOL(timer_ticks_to_msec);
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EXPORT_SYMBOL(timer_get_tick_rate);
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EXPORT_SYMBOL(timer_get_msec);
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