18 	DIGBEEP_HZ_STEP = 46875,	/* 46.875 Hz */
19 	DIGBEEP_HZ_MIN = 93750,		/* 93.750 Hz */
56  * defined from the 8bit tone parameter, in Hz,
58  * that is from 12kHz to 93.75Hz in steps of 46.875 Hz
60 static int beep_linear_tone(struct hda_beep *beep, int hz)  in beep_linear_tone()  argument
62 	if (hz <= 0)  in beep_linear_tone()
64 	hz *= 1000; /* fixed point */  in beep_linear_tone()
65 	hz = hz - DIGBEEP_HZ_MIN  in beep_linear_tone()
67 	if (hz < 0)  in beep_linear_tone()
68 		hz = 0; /* turn off PC beep*/  in beep_linear_tone()
69 	else if (hz >= (DIGBEEP_HZ_MAX - DIGBEEP_HZ_MIN))  in beep_linear_tone()
70 		hz = 1; /* max frequency */  in beep_linear_tone()
72 		hz /= DIGBEEP_HZ_STEP;  in beep_linear_tone()
73 		hz = 255 - hz;  in beep_linear_tone()
75 	return hz;  in beep_linear_tone()
80  * The tone frequency in Hz is calculated as
82  * from 47Hz to 12kHz
84 static int beep_standard_tone(struct hda_beep *beep, int hz)  in beep_standard_tone()  argument
86 	if (hz <= 0)  in beep_standard_tone()
88 	hz = 12000 / hz;  in beep_standard_tone()
89 	if (hz > 0xff)  in beep_standard_tone()
91 	if (hz <= 0)  in beep_standard_tone()
93 	return hz;  in beep_standard_tone()
97 				unsigned int code, int hz)  in snd_hda_beep_event()  argument
103 		if (hz)  in snd_hda_beep_event()
104 			hz = 1000;  in snd_hda_beep_event()
108 			beep->tone = beep_linear_tone(beep, hz);  in snd_hda_beep_event()
110 			beep->tone = beep_standard_tone(beep, hz);  in snd_hda_beep_event()