pccard_beep.c

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    1 /*-
    2  * pccard noise interface.
    3  * Nate Williams, October 1997.
    4  * This file is in the public domain.
    5  */
    6 /* $FreeBSD: releng/5.0/sys/pccard/pccard_beep.c 104164 2002-09-29 23:41:25Z imp $ */
    7 
    8 #include <sys/param.h>
    9 #include <sys/kernel.h>
   10 #include <sys/systm.h>
   11 
   12 #include <machine/clock.h>
   13 
   14 #include <pccard/driver.h>
   15 
   16 static enum beepstate allow_beep = BEEP_OFF;
   17 static int melody_type = 0;
   18 
   19 #define MAX_TONE_MODE   3
   20 #define MAX_STATE       4 
   21 
   22 struct tone {
   23         int pitch;
   24         int duration;
   25 };
   26 
   27 static struct tone silent_beep[] = {
   28         {0, 0}
   29 };
   30 
   31 static struct tone success_beep[] = {
   32         {1200,   40}, {0, 0}
   33 };
   34 static struct tone failure_beep[] = {
   35         {3200,   40}, {0, 0}
   36 };
   37 static struct tone insert_remove_beep[] = {
   38         {1600,   20}, {0, 0}
   39 };
   40 
   41 static struct tone success_melody_beep[] = {
   42         {1200,    7}, {1000,    7}, { 800,   15}, {0, 0}
   43 };
   44 static struct tone failure_melody_beep[] = {
   45         {2000,    7}, {2400,    7}, {2800,   15}, {0, 0}
   46 };
   47 static struct tone insert_melody_beep[] = {
   48         {1600,   10}, {1200,    5}, {0, 0}
   49 };
   50 static struct tone remove_melody_beep[] = {
   51         {1200,   10}, {1600,    5}, {0, 0}
   52 };
   53 
   54 static struct tone *melody_table[MAX_TONE_MODE][MAX_STATE] = {
   55         { /* silent mode */
   56                 silent_beep, silent_beep, silent_beep, silent_beep,
   57         },
   58         { /* simple beep mode */
   59                 success_beep, failure_beep,
   60                 insert_remove_beep, insert_remove_beep,
   61         },
   62         { /* melody beep mode */
   63                 success_melody_beep, failure_melody_beep,
   64                 insert_melody_beep, remove_melody_beep,
   65         },
   66 };
   67 
   68 
   69 static void
   70 pccard_beep_sub(void *arg)
   71 {
   72         struct tone *melody;
   73         melody = (struct tone *)arg;
   74 
   75         if (melody->pitch != 0) {
   76                 sysbeep(melody->pitch, (melody->duration * hz + 99) / 100);
   77                 timeout(pccard_beep_sub, melody + 1,
   78                     (melody->duration * hz + 99) / 100);
   79         } else 
   80                 allow_beep = BEEP_ON;
   81 }
   82 
   83 static void
   84 pccard_beep_start(void *arg)
   85 {
   86         struct tone *melody;
   87         melody = (struct tone *)arg;
   88 
   89         if (allow_beep == BEEP_ON && melody->pitch != 0) {
   90                 allow_beep = BEEP_OFF;
   91                 sysbeep(melody->pitch, (melody->duration * hz + 99) / 100);
   92                 timeout(pccard_beep_sub, melody + 1,
   93                     (melody->duration * hz + 99) / 100);
   94         }
   95 }
   96 
   97 void
   98 pccard_success_beep(void)
   99 {
  100         pccard_beep_start(melody_table[melody_type][0]);
  101 }
  102 
  103 void
  104 pccard_failure_beep(void)
  105 {
  106         pccard_beep_start(melody_table[melody_type][1]);
  107 }
  108 
  109 void
  110 pccard_insert_beep(void)
  111 {
  112         pccard_beep_start(melody_table[melody_type][2]);
  113 }
  114 
  115 void
  116 pccard_remove_beep(void)
  117 {
  118         pccard_beep_start(melody_table[melody_type][3]);
  119 }
  120 
  121 int
  122 pccard_beep_select(int type)
  123 {
  124         int errcode = 0;
  125 
  126         if (type == 0)  {
  127                 allow_beep = BEEP_OFF;
  128                 melody_type = 0;
  129         } else if (type < 0 || MAX_TONE_MODE - 1 < type) {
  130                 errcode = 1;
  131         } else {
  132                 allow_beep = BEEP_ON;
  133                 melody_type = type;
  134         }
  135         return (errcode);
  136 }

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FreeBSD/Linux Kernel Cross Reference sys/pccard/pccard_beep.c

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sys/pccard/pccard_beep.c