From 99f1b222339d6eee1c65e04ad1def3c866f155b0 Mon Sep 17 00:00:00 2001 From: nyan Date: Sat, 14 May 2005 09:10:02 +0000 Subject: - Move timerreg.h to /include and split i8253 specific defines into i8253reg.h, and add some defines to control a speaker. - Move PPI related defines from i386/isa/spkr.c into ppireg.h and use them. - Move IO_{PPI,TIMER} defines into ppireg.h and timerreg.h respectively. - Use isa/isareg.h rather than /isa/isa.h. Tested on: i386, pc98 --- sys/amd64/include/timerreg.h | 67 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 sys/amd64/include/timerreg.h (limited to 'sys/amd64/include/timerreg.h') diff --git a/sys/amd64/include/timerreg.h b/sys/amd64/include/timerreg.h new file mode 100644 index 0000000..34e59e0 --- /dev/null +++ b/sys/amd64/include/timerreg.h @@ -0,0 +1,67 @@ +/*- + * Copyright (C) 2005 TAKAHASHI Yoshihiro. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +/* + * The outputs of the three timers are connected as follows: + * + * timer 0 -> irq 0 + * timer 1 -> dma chan 0 (for dram refresh) + * timer 2 -> speaker (via keyboard controller) + * + * Timer 0 is used to call hardclock. + * Timer 2 is used to generate console beeps. + */ + +#ifndef _MACHINE_TIMERREG_H_ +#define _MACHINE_TIMERREG_H_ + +#ifdef _KERNEL + +#include + +#define IO_TIMER1 0x40 /* 8253 Timer #1 */ +#define TIMER_CNTR0 (IO_TIMER1 + TIMER_REG_CNTR0) +#define TIMER_CNTR1 (IO_TIMER1 + TIMER_REG_CNTR1) +#define TIMER_CNTR2 (IO_TIMER1 + TIMER_REG_CNTR2) +#define TIMER_MODE (IO_TIMER1 + TIMER_REG_MODE) + +#define timer_spkr_acquire() \ + acquire_timer2(TIMER_SEL2 | TIMER_SQWAVE | TIMER_16BIT) +#define timer_spkr_release() \ + release_timer2() + +static __inline void +spkr_set_pitch(u_int16_t pitch) +{ + + outb(TIMER_CNTR2, pitch & 0xff); + outb(TIMER_CNTR2, pitch >> 8); +} + +#endif /* _KERNEL */ + +#endif /* _MACHINE_TIMERREG_H_ */ -- cgit v1.1