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authornyan <nyan@FreeBSD.org>2005-05-14 09:10:02 +0000
committernyan <nyan@FreeBSD.org>2005-05-14 09:10:02 +0000
commit99f1b222339d6eee1c65e04ad1def3c866f155b0 (patch)
treed6652ab4639c3a5c5eb85fbf3822f9f54a92d8b1 /sys/amd64/isa
parentcb84f02ba844fdbece84784ccefc57126f36d66f (diff)
downloadFreeBSD-src-99f1b222339d6eee1c65e04ad1def3c866f155b0.zip
FreeBSD-src-99f1b222339d6eee1c65e04ad1def3c866f155b0.tar.gz
- Move timerreg.h to <arch>/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 <arch>/isa/isa.h. Tested on: i386, pc98
Diffstat (limited to 'sys/amd64/isa')
-rw-r--r--sys/amd64/isa/clock.c16
-rw-r--r--sys/amd64/isa/isa.h3
-rw-r--r--sys/amd64/isa/timerreg.h90
3 files changed, 8 insertions, 101 deletions
diff --git a/sys/amd64/isa/clock.c b/sys/amd64/isa/clock.c
index f1f3e942..7e3fd78 100644
--- a/sys/amd64/isa/clock.c
+++ b/sys/amd64/isa/clock.c
@@ -72,13 +72,14 @@ __FBSDID("$FreeBSD$");
#include <machine/psl.h>
#include <machine/apicvar.h>
#include <machine/specialreg.h>
+#include <machine/ppireg.h>
+#include <machine/timerreg.h>
-#include <amd64/isa/isa.h>
#include <isa/rtc.h>
#ifdef DEV_ISA
+#include <isa/isareg.h>
#include <isa/isavar.h>
#endif
-#include <amd64/isa/timerreg.h>
/*
* 32-bit time_t's can't reach leap years before 1904 or after 2036, so we
@@ -365,8 +366,8 @@ DELAY(int n)
static void
sysbeepstop(void *chan)
{
- outb(IO_PPI, inb(IO_PPI)&0xFC); /* disable counter2 output to speaker */
- release_timer2();
+ ppi_spkr_off(); /* disable counter2 output to speaker */
+ timer_spkr_release();
beeping = 0;
}
@@ -375,19 +376,18 @@ sysbeep(int pitch, int period)
{
int x = splclock();
- if (acquire_timer2(TIMER_SQWAVE|TIMER_16BIT))
+ if (timer_spkr_acquire())
if (!beeping) {
/* Something else owns it. */
splx(x);
return (-1); /* XXX Should be EBUSY, but nobody cares anyway. */
}
mtx_lock_spin(&clock_lock);
- outb(TIMER_CNTR2, pitch);
- outb(TIMER_CNTR2, (pitch>>8));
+ spkr_set_pitch(pitch);
mtx_unlock_spin(&clock_lock);
if (!beeping) {
/* enable counter2 output to speaker */
- outb(IO_PPI, inb(IO_PPI) | 3);
+ ppi_spkr_on();
beeping = period;
timeout(sysbeepstop, (void *)NULL, period);
}
diff --git a/sys/amd64/isa/isa.h b/sys/amd64/isa/isa.h
index 4aa42d6..ad6b176 100644
--- a/sys/amd64/isa/isa.h
+++ b/sys/amd64/isa/isa.h
@@ -52,10 +52,7 @@
#define IO_DMA1 0x000 /* 8237A DMA Controller #1 */
#define IO_ICU1 0x020 /* 8259A Interrupt Controller #1 */
#define IO_PMP1 0x026 /* 82347 Power Management Peripheral */
-#define IO_TIMER1 0x040 /* 8253 Timer #1 */
-#define IO_TIMER2 0x048 /* 8253 Timer #2 */
#define IO_KBD 0x060 /* 8042 Keyboard */
-#define IO_PPI 0x061 /* Programmable Peripheral Interface */
#define IO_RTC 0x070 /* RTC */
#define IO_NMI IO_RTC /* NMI Control */
#define IO_DMAPG 0x080 /* DMA Page Registers */
diff --git a/sys/amd64/isa/timerreg.h b/sys/amd64/isa/timerreg.h
deleted file mode 100644
index b706bd8..0000000
--- a/sys/amd64/isa/timerreg.h
+++ /dev/null
@@ -1,90 +0,0 @@
-/*-
- * Copyright (c) 1993 The Regents of the University of California.
- * 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.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 THE REGENTS 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.
- *
- * from: Header: timerreg.h,v 1.2 93/02/28 15:08:58 mccanne Exp
- * $FreeBSD$
- */
-
-/*
- *
- * Register definitions for the Intel 8253 Programmable Interval Timer.
- *
- * This chip has three independent 16-bit down counters that can be
- * read on the fly. There are three mode registers and three countdown
- * registers. The countdown registers are addressed directly, via the
- * first three I/O ports. The three mode registers are accessed via
- * the fourth I/O port, with two bits in the mode byte indicating the
- * register. (Why are hardware interfaces always so braindead?).
- *
- * To write a value into the countdown register, the mode register
- * is first programmed with a command indicating the which byte of
- * the two byte register is to be modified. The three possibilities
- * are load msb (TMR_MR_MSB), load lsb (TMR_MR_LSB), or load lsb then
- * msb (TMR_MR_BOTH).
- *
- * To read the current value ("on the fly") from the countdown register,
- * you write a "latch" command into the mode register, then read the stable
- * value from the corresponding I/O port. For example, you write
- * TMR_MR_LATCH into the corresponding mode register. Presumably,
- * after doing this, a write operation to the I/O port would result
- * in undefined behavior (but hopefully not fry the chip).
- * Reading in this manner has no side effects.
- *
- * [AMD64]
- * 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.
- */
-
-/*
- * Macros for specifying values to be written into a mode register.
- */
-#define TIMER_CNTR0 (IO_TIMER1 + 0) /* timer 0 counter port */
-#define TIMER_CNTR1 (IO_TIMER1 + 1) /* timer 1 counter port */
-#define TIMER_CNTR2 (IO_TIMER1 + 2) /* timer 2 counter port */
-#define TIMER_MODE (IO_TIMER1 + 3) /* timer mode port */
-#define TIMER_SEL0 0x00 /* select counter 0 */
-#define TIMER_SEL1 0x40 /* select counter 1 */
-#define TIMER_SEL2 0x80 /* select counter 2 */
-#define TIMER_INTTC 0x00 /* mode 0, intr on terminal cnt */
-#define TIMER_ONESHOT 0x02 /* mode 1, one shot */
-#define TIMER_RATEGEN 0x04 /* mode 2, rate generator */
-#define TIMER_SQWAVE 0x06 /* mode 3, square wave */
-#define TIMER_SWSTROBE 0x08 /* mode 4, s/w triggered strobe */
-#define TIMER_HWSTROBE 0x0a /* mode 5, h/w triggered strobe */
-#define TIMER_LATCH 0x00 /* latch counter for reading */
-#define TIMER_LSB 0x10 /* r/w counter LSB */
-#define TIMER_MSB 0x20 /* r/w counter MSB */
-#define TIMER_16BIT 0x30 /* r/w counter 16 bits, LSB first */
-#define TIMER_BCD 0x01 /* count in BCD */
-
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