18 	DIGBEEP_HZ_STEP = 46875,	/* 46.875 Hz */
19 	DIGBEEP_HZ_MIN = 93750,		/* 93.750 Hz */
32 		beep->playing = 1;  in generate_tone()
57  * defined from the 8bit tone parameter, in Hz,
59  * that is from 12kHz to 93.75Hz in steps of 46.875 Hz
61 static int beep_linear_tone(struct hda_beep *beep, int hz)  in beep_linear_tone()  argument
63 	if (hz <= 0)  in beep_linear_tone()
65 	hz *= 1000; /* fixed point */  in beep_linear_tone()
66 	hz = hz - DIGBEEP_HZ_MIN  in beep_linear_tone()
68 	if (hz < 0)  in beep_linear_tone()
69 		hz = 0; /* turn off PC beep*/  in beep_linear_tone()
70 	else if (hz >= (DIGBEEP_HZ_MAX - DIGBEEP_HZ_MIN))  in beep_linear_tone()
71 		hz = 1; /* max frequency */  in beep_linear_tone()
73 		hz /= DIGBEEP_HZ_STEP;  in beep_linear_tone()
74 		hz = 255 - hz;  in beep_linear_tone()
76 	return hz;  in beep_linear_tone()
81  * The tone frequency in Hz is calculated as
83  * from 47Hz to 12kHz
85 static int beep_standard_tone(struct hda_beep *beep, int hz)  in beep_standard_tone()  argument
87 	if (hz <= 0)  in beep_standard_tone()
89 	hz = 12000 / hz;  in beep_standard_tone()
90 	if (hz > 0xff)  in beep_standard_tone()
92 	if (hz <= 0)  in beep_standard_tone()
93 		return 1;  in beep_standard_tone()
94 	return hz;  in beep_standard_tone()
98 				unsigned int code, int hz)  in snd_hda_beep_event()  argument
104 		if (hz)  in snd_hda_beep_event()
105 			hz = 1000;  in snd_hda_beep_event()
109 			beep->tone = beep_linear_tone(beep, hz);  in snd_hda_beep_event()
111 			beep->tone = beep_standard_tone(beep, hz);  in snd_hda_beep_event()
114 		return -1;  in snd_hda_beep_event()
156 		return 1;  in snd_hda_enable_beep_device()
309 		if (chs & 1)  in snd_hda_mixer_amp_switch_get_beep()
312 			ucontrol->value.integer.value[1] = beep->enabled;  in snd_hda_mixer_amp_switch_get_beep()
333 		if (chs & 1) {  in snd_hda_mixer_amp_switch_put_beep()