diff options
Diffstat (limited to 'sound/drivers/opl3/opl3_drums.c')
| -rw-r--r-- | sound/drivers/opl3/opl3_drums.c | 46 |
1 files changed, 15 insertions, 31 deletions
diff --git a/sound/drivers/opl3/opl3_drums.c b/sound/drivers/opl3/opl3_drums.c index 73694380734a..ccc49f39404d 100644 --- a/sound/drivers/opl3/opl3_drums.c +++ b/sound/drivers/opl3/opl3_drums.c @@ -1,29 +1,13 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (c) by Uros Bizjak <uros@kss-loka.si> * * OPL2/OPL3/OPL4 FM routines for internal percussion channels - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * */ #include "opl3_voice.h" -extern char snd_opl3_regmap[MAX_OPL2_VOICES][4]; - -static char snd_opl3_drum_table[47] = +static const char snd_opl3_drum_table[47] = { OPL3_BASSDRUM_ON, OPL3_BASSDRUM_ON, OPL3_HIHAT_ON, /* 35 - 37 */ OPL3_SNAREDRUM_ON, OPL3_HIHAT_ON, OPL3_SNAREDRUM_ON, /* 38 - 40 */ @@ -63,25 +47,25 @@ struct snd_opl3_drum_note { unsigned char feedback_connection; }; -static struct snd_opl3_drum_voice bass_op0 = {6, 0, 0x00, 0x32, 0xf8, 0x66, 0x30, 0x00}; -static struct snd_opl3_drum_voice bass_op1 = {6, 1, 0x00, 0x03, 0xf6, 0x57, 0x30, 0x00}; -static struct snd_opl3_drum_note bass_note = {6, 0x90, 0x09}; +static const struct snd_opl3_drum_voice bass_op0 = {6, 0, 0x00, 0x32, 0xf8, 0x66, 0x30, 0x00}; +static const struct snd_opl3_drum_voice bass_op1 = {6, 1, 0x00, 0x03, 0xf6, 0x57, 0x30, 0x00}; +static const struct snd_opl3_drum_note bass_note = {6, 0x90, 0x09}; -static struct snd_opl3_drum_voice hihat = {7, 0, 0x00, 0x03, 0xf0, 0x06, 0x20, 0x00}; +static const struct snd_opl3_drum_voice hihat = {7, 0, 0x00, 0x03, 0xf0, 0x06, 0x20, 0x00}; -static struct snd_opl3_drum_voice snare = {7, 1, 0x00, 0x03, 0xf0, 0x07, 0x20, 0x02}; -static struct snd_opl3_drum_note snare_note = {7, 0xf4, 0x0d}; +static const struct snd_opl3_drum_voice snare = {7, 1, 0x00, 0x03, 0xf0, 0x07, 0x20, 0x02}; +static const struct snd_opl3_drum_note snare_note = {7, 0xf4, 0x0d}; -static struct snd_opl3_drum_voice tomtom = {8, 0, 0x02, 0x03, 0xf0, 0x06, 0x10, 0x00}; -static struct snd_opl3_drum_note tomtom_note = {8, 0xf4, 0x09}; +static const struct snd_opl3_drum_voice tomtom = {8, 0, 0x02, 0x03, 0xf0, 0x06, 0x10, 0x00}; +static const struct snd_opl3_drum_note tomtom_note = {8, 0xf4, 0x09}; -static struct snd_opl3_drum_voice cymbal = {8, 1, 0x04, 0x03, 0xf0, 0x06, 0x10, 0x00}; +static const struct snd_opl3_drum_voice cymbal = {8, 1, 0x04, 0x03, 0xf0, 0x06, 0x10, 0x00}; /* * set drum voice characteristics */ static void snd_opl3_drum_voice_set(struct snd_opl3 *opl3, - struct snd_opl3_drum_voice *data) + const struct snd_opl3_drum_voice *data) { unsigned char op_offset = snd_opl3_regmap[data->voice][data->op]; unsigned char voice_offset = data->voice; @@ -116,7 +100,7 @@ static void snd_opl3_drum_voice_set(struct snd_opl3 *opl3, * Set drum voice pitch */ static void snd_opl3_drum_note_set(struct snd_opl3 *opl3, - struct snd_opl3_drum_note *data) + const struct snd_opl3_drum_note *data) { unsigned char voice_offset = data->voice; unsigned short opl3_reg; @@ -134,7 +118,7 @@ static void snd_opl3_drum_note_set(struct snd_opl3 *opl3, * Set drum voice volume and position */ static void snd_opl3_drum_vol_set(struct snd_opl3 *opl3, - struct snd_opl3_drum_voice *data, + const struct snd_opl3_drum_voice *data, int vel, struct snd_midi_channel *chan) { unsigned char op_offset = snd_opl3_regmap[data->voice][data->op]; @@ -186,7 +170,7 @@ void snd_opl3_drum_switch(struct snd_opl3 *opl3, int note, int vel, int on_off, struct snd_midi_channel *chan) { unsigned char drum_mask; - struct snd_opl3_drum_voice *drum_voice; + const struct snd_opl3_drum_voice *drum_voice; if (!(opl3->drum_reg & OPL3_PERCUSSION_ENABLE)) return; |