isa/gus/gus_volume.c

1 // SPDX-License-Identifier: GPL-2.0-or-later
13 EXPORT_SYMBOL(snd_gf1_atten_table); /* for snd-gus-synth module */
25 			e--;  in snd_gf1_lvol_to_gvol_raw()
32 	m = vol - (1 << e);  in snd_gf1_lvol_to_gvol_raw()
35 			m >>= e - 8;  in snd_gf1_lvol_to_gvol_raw()
37 			m <<= 8 - e;  in snd_gf1_lvol_to_gvol_raw()
56 		return rvol | (m << (e - 8));
57 	return rvol | (m >> (8 - e));
76 		us /= end - start;
78 		us /= start - end;
80 	value = gus->gf1.enh_mode ?
82 	    vol_rates[gus->gf1.active_voices - 14];
107 		dev_err(gus->card->dev, "%s: overflow - freq = 0x%x\n",  in snd_gf1_translate_freq()
110 	return ((freq16 << 9) + (gus->gf1.playback_freq >> 1)) / gus->gf1.playback_freq;  in snd_gf1_translate_freq()
128 	pcents = cents < 0 ? -cents : cents;
132 	/* is the cents index from 0-255 cents, and the second number in the       */
140 	depth = (((int) (*(vi2 + 1) - *vi1) * (pcents - *vi1) / (*vi2 - *vi1)) + v1) * fc_register >> 14;
145 	return cents < 0 ? -(short) depth : (short) depth;
148 unsigned short snd_gf1_compute_pitchbend(unsigned short pitchbend, unsigned short sens)
157 	if (!sens)
159 	wheel = (int) pitchbend - 8192;
160 	sensitivity = ((int) sens * wheel) / 128;
163 		sensitivity = -sensitivity;
173 	bend = (int) ((((f2 - f1) * mantissa) >> 13) + f1);
193 		pr_err("patch: (1) fc frequency overflow - %u\n", fc);
196 	while (scale--)
200 		pr_err("patch: (2) fc frequency overflow - %u\n", fc);