hda/common/beep.c

23 /* generate or stop tone */
24 static void generate_tone(struct hda_beep *beep, int tone)
28 	if (tone && !beep->playing) {
36 				    AC_VERB_SET_BEEP_CONTROL, tone);
37 	if (!tone && beep->playing) {
51 		generate_tone(beep, beep->tone);
54 /* (non-standard) Linear beep tone calculation for IDT/STAC codecs
56  * The tone frequency of beep generator on IDT/STAC codecs is
57  * defined from the 8bit tone parameter, in Hz,
58  *    freq = 48000 * (257 - tone) / 1024
79 /* HD-audio standard beep tone parameter calculation
81  * The tone frequency in Hz is calculated as
82  *   freq = 48000 / (tone * 4)
109 			beep->tone = beep_linear_tone(beep, hz);
111 			beep->tone = beep_standard_tone(beep, hz);