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137 lines
2.6 KiB
C
137 lines
2.6 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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/* $FreeBSD$ */
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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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static enum beepstate allow_beep = BEEP_OFF;
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static int melody_type = 0;
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#define MAX_TONE_MODE 3
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#define MAX_STATE 4
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struct tone {
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int pitch;
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int duration;
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};
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static struct tone silent_beep[] = {
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{0, 0}
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};
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static struct tone success_beep[] = {
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{1200, 40}, {0, 0}
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};
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static struct tone failure_beep[] = {
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{3200, 40}, {0, 0}
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};
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static struct tone insert_remove_beep[] = {
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{1600, 20}, {0, 0}
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};
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static struct tone success_melody_beep[] = {
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{1200, 7}, {1000, 7}, { 800, 15}, {0, 0}
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};
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static struct tone failure_melody_beep[] = {
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{2000, 7}, {2400, 7}, {2800, 15}, {0, 0}
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};
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static struct tone insert_melody_beep[] = {
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{1600, 10}, {1200, 5}, {0, 0}
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};
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static struct tone remove_melody_beep[] = {
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{1200, 10}, {1600, 5}, {0, 0}
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};
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static struct tone *melody_table[MAX_TONE_MODE][MAX_STATE] = {
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{ /* silent mode */
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silent_beep, silent_beep, silent_beep, silent_beep,
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},
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{ /* simple beep mode */
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success_beep, failure_beep,
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insert_remove_beep, insert_remove_beep,
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},
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{ /* melody beep mode */
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success_melody_beep, failure_melody_beep,
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insert_melody_beep, remove_melody_beep,
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},
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};
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static void
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pccard_beep_sub(void *arg)
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{
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struct tone *melody;
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melody = (struct tone *)arg;
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if (melody->pitch != 0) {
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sysbeep(melody->pitch, (melody->duration * hz + 99) / 100);
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timeout(pccard_beep_sub, melody + 1,
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(melody->duration * hz + 99) / 100);
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} else
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allow_beep = BEEP_ON;
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}
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static void
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pccard_beep_start(void *arg)
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{
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struct tone *melody;
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melody = (struct tone *)arg;
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if (allow_beep == BEEP_ON && melody->pitch != 0) {
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allow_beep = BEEP_OFF;
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sysbeep(melody->pitch, (melody->duration * hz + 99) / 100);
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timeout(pccard_beep_sub, melody + 1,
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(melody->duration * hz + 99) / 100);
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}
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}
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void
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pccard_success_beep(void)
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{
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pccard_beep_start(melody_table[melody_type][0]);
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}
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void
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pccard_failure_beep(void)
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{
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pccard_beep_start(melody_table[melody_type][1]);
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}
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void
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pccard_insert_beep(void)
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{
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pccard_beep_start(melody_table[melody_type][2]);
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}
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void
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pccard_remove_beep(void)
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{
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pccard_beep_start(melody_table[melody_type][3]);
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}
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int
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pccard_beep_select(int type)
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{
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int errcode = 0;
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if (type == 0) {
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allow_beep = BEEP_OFF;
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melody_type = 0;
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} else if (type < 0 || MAX_TONE_MODE - 1 < type) {
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errcode = 1;
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} else {
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allow_beep = BEEP_ON;
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melody_type = type;
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}
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return (errcode);
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}
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