8f372d031b
Change-Id: Icd1f145b3575c6d95dacceb9c0426fbdedcdd686 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/16777 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
87 lines
2.1 KiB
C
87 lines
2.1 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2009 Libra Li <libra.li@technexion.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifdef __PRE_RAM__
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#include <arch/cpu.h>
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#include "southbridge/amd/sb600/sb600.h"
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#else
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#include <arch/io.h>
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#include <device/pci.h>
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#include <device/pci_ids.h>
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#include "southbridge/amd/sb600/sb600.h"
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#include <delay.h>
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#endif /* __PRE_RAM__ */
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#include "speaker.h"
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void speaker_init(uint8_t time) {
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/* SB600 RRG.
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* Options_0 - RW - 8 bits - [PM_Reg: 60h].
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* SpkrEn, bit[5]=1b, Setting this bit will configure GPIO2 to be speaker output.
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*/
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#ifdef __PRE_RAM__
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pmio_write(0x60, (pmio_read(0x60) | (1<<5)));
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#else
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pm_iowrite(0x60, (pm_ioread(0x60) | (1<<5)));
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#endif /* __PRE_RAM__ */
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/* SB600 RRG.
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* Tmr1CntrlWord - RW - 8 bits - [IO_Reg: 43h].
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* ModeSelect, bit[3:1]=011b, Square wave output.
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* CmmandSelect, bit[5:4]=11b, Read/write least, and then most significant byte.
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* CounterSelect, bit[7:6]=10b, Select counter 2.
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*/
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outb(0xb6, 0x43);
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/* SB600 RRG.
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* TimerCh2- RW - 8 bits - [IO_Reg: 42h].
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*/
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outb(time, 0x42);
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}
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void speaker_on_nodelay(void) {
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/* SB600 RRG.
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* Nmi_Status - RW - 8 bits - [IO_Reg: 61h].
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* SpkrEnable, bit[0]=1b, Enable counter 2
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* SpkrTmrEnable, bit[1]=1b, Speaker timer on
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*/
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outb(inb(0x61) | 0x03, 0x61);
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}
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void speaker_on_delay(void) {
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speaker_on_nodelay();
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mdelay(100);
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}
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void speaker_off_nodelay(void) {
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/* SB600 RRG.
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* Nmi_Status - RW - 8 bits - [IO_Reg: 61h].
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* SpkrEnable, bit[0]=0b, Disable counter 2
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* SpkrTmrEnable, bit[1]=0b, Speaker timer off
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*/
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outb(inb(0x61) & ~0x03, 0x61);
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}
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void speaker_off_delay(void) {
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speaker_off_nodelay();
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mdelay(100);
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}
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