00001 /* rtai/include/asm-arm/arch-at91/rtai_arch.h 00002 ------------------------------------------------------------- 00003 DONT include directly - it's included through asm-arm/rtai.h 00004 ------------------------------------------------------------- 00005 COPYRIGHT (C) 2002 Guennadi Liakhovetski, DSA GmbH (gl@dsa-ac.de) 00006 COPYRIGHT (C) 2002 Wolfgang Müller (wolfgang.mueller@dsa-ac.de) 00007 Copyright (c) 2001 Alex Züpke, SYSGO RTS GmbH (azu@sysgo.de) 00008 Copyright (c) 2005 Luca Pizzi, (lucapizzi@hotmail.com) 00009 Copyright (c) 2005 Stefano Gafforelli, (stefano.gafforelli@tiscali.it) 00010 Copyright (C) 2007 Adeneo 00011 00012 This program is free software; you can redistribute it and/or modify 00013 it under the terms of version 2 of the GNU General Public License as 00014 published by the Free Software Foundation. 00015 00016 This program is distributed in the hope that it will be useful, 00017 but WITHOUT ANY WARRANTY; without even the implied warranty of 00018 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00019 GNU General Public License for more details. 00020 00021 You should have received a copy of the GNU General Public License 00022 along with this program; if not, write to the Free Software 00023 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00024 */ 00025 /* 00026 -------------------------------------------------------------------------- 00027 Acknowledgements 00028 - Paolo Mantegazza (mantegazza@aero.polimi.it) 00029 creator of RTAI 00030 */ 00031 00032 #ifndef _ASM_ARCH_RTAI_ARCH_H_ 00033 #define _ASM_ARCH_RTAI_ARCH_H_ 00034 00035 #include <asm/arch/hardware.h> 00036 #include <asm/arch/at91_pmc.h> 00037 00038 /* irq number of timer interrupt */ 00039 #define RTAI_TIMER_IRQ __ipipe_mach_timerint 00040 00041 /* clock frequency of timer that generates timer-interrupt [Hz] */ 00042 #define RTAI_TIMER_FREQ CLOCK_TICK_RATE 00043 00044 /* maximal timer load value */ 00045 #define RTAI_TIMER_MAXVAL 0xFFFF 00046 00047 /* clock frequency of time-stamp-counter (TSC) (TC on AT91) [Hz] */ 00048 #define RTAI_TSC_FREQ CLOCK_TICK_RATE 00049 00050 /* - oneshot timer latency (is subtracted from oneshot delay) [nanoseconds] 00051 * (specify it with TSC resolution (because it is used this way in the scheduler)) */ 00052 #define RTAI_TIMER_LATENCY 6000 00053 00054 /* - oneshot timer setup delay (i.e. minimal oneshot delay) [nanoseconds] 00055 * (specify it with TSC resolution) */ 00056 #define RTAI_TIMER_SETUP_TIME 1500 00057 00058 /* name of timer */ 00059 #define RTAI_TIMER_NAME "TIMER1" 00060 00061 #define RTAI_CALIBRATED_CPU_FREQ 0 00062 #define RTAI_CALIBRATED_APIC_FREQ 0 00063 00064 extern inline void 00065 rtai_archdep_init(void) 00066 { 00067 /* nothing to do */ 00068 } 00069 00070 extern inline void 00071 rtai_archdep_exit(void) 00072 { 00073 /* nothing to do */ 00074 } 00075 00076 #endif /* _ASM_ARCH_RTAI_ARCH_H_ */
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