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75 lines
1.5 KiB
C
75 lines
1.5 KiB
C
/*-
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* pccard noise interface.
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* Nate Williams, October 1997.
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* This file is in the public domain.
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*/
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <machine/clock.h>
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#include <pccard/driver.h>
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#define PCCARD_BEEP_PITCH0 1600
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#define PCCARD_BEEP_DURATION0 20
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#define PCCARD_BEEP_PITCH1 1200
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#define PCCARD_BEEP_DURATION1 40
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#define PCCARD_BEEP_PITCH2 3200
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#define PCCARD_BEEP_DURATION2 40
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static struct callout_handle beeptimeout_ch
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= CALLOUT_HANDLE_INITIALIZER(&beeptimeout_ch);
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static enum beepstate allow_beep = BEEP_OFF;
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/*
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* timeout function to keep lots of noise from
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* happening with insertion/removals.
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*/
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static void enable_beep(void *dummy)
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{
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/* Should never be needed */
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untimeout(enable_beep, (void *)NULL, beeptimeout_ch);
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allow_beep = 1;
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}
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void pccard_insert_beep(void)
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{
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if (allow_beep == BEEP_ON) {
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sysbeep(PCCARD_BEEP_PITCH0, PCCARD_BEEP_DURATION0);
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allow_beep = 0;
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beeptimeout_ch = timeout(enable_beep, (void *)NULL, hz / 5);
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}
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}
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void pccard_remove_beep(void)
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{
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if (allow_beep == BEEP_ON) {
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sysbeep(PCCARD_BEEP_PITCH0, PCCARD_BEEP_DURATION0);
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allow_beep = 0;
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beeptimeout_ch = timeout(enable_beep, (void *)NULL, hz / 5);
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}
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}
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void pccard_success_beep(void)
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{
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sysbeep(PCCARD_BEEP_PITCH1, PCCARD_BEEP_DURATION1);
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}
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void pccard_failure_beep(void)
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{
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sysbeep(PCCARD_BEEP_PITCH2, PCCARD_BEEP_DURATION2);
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}
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int pccard_beep_select(enum beepstate state)
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{
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if (state == BEEP_ON || state == BEEP_OFF) {
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allow_beep = state;
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return 0;
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}
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return 1;
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}
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