1 /*
2 * Local definitions for the OPL4 driver
3 *
4 * Copyright (c) 2003 by Clemens Ladisch <clemens@ladisch.de>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions, and the following disclaimer,
12 * without modification.
13 * 2. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * Alternatively, this software may be distributed and/or modified under the
17 * terms of the GNU General Public License as published by the Free Software
18 * Foundation; either version 2 of the License, or (at your option) any later
19 * version.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
25 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34 #ifndef __OPL4_LOCAL_H
35 #define __OPL4_LOCAL_H
36
37 #include <sound/opl4.h>
38
39 /*
40 * Register numbers
41 */
42
43 #define OPL4_REG_TEST0 0x00
44 #define OPL4_REG_TEST1 0x01
45
46 #define OPL4_REG_MEMORY_CONFIGURATION 0x02
47 #define OPL4_MODE_BIT 0x01
48 #define OPL4_MTYPE_BIT 0x02
49 #define OPL4_TONE_HEADER_MASK 0x1c
50 #define OPL4_DEVICE_ID_MASK 0xe0
51
52 #define OPL4_REG_MEMORY_ADDRESS_HIGH 0x03
53 #define OPL4_REG_MEMORY_ADDRESS_MID 0x04
54 #define OPL4_REG_MEMORY_ADDRESS_LOW 0x05
55 #define OPL4_REG_MEMORY_DATA 0x06
56
57 /*
58 * Offsets to the register banks for voices. To get the
59 * register number just add the voice number to the bank offset.
60 *
61 * Wave Table Number low bits (0x08 to 0x1F)
62 */
63 #define OPL4_REG_TONE_NUMBER 0x08
64
65 /* Wave Table Number high bit, F-Number low bits (0x20 to 0x37) */
66 #define OPL4_REG_F_NUMBER 0x20
67 #define OPL4_TONE_NUMBER_BIT8 0x01
68 #define OPL4_F_NUMBER_LOW_MASK 0xfe
69
70 /* F-Number high bits, Octave, Pseudo-Reverb (0x38 to 0x4F) */
71 #define OPL4_REG_OCTAVE 0x38
72 #define OPL4_F_NUMBER_HIGH_MASK 0x07
73 #define OPL4_BLOCK_MASK 0xf0
74 #define OPL4_PSEUDO_REVERB_BIT 0x08
75
76 /* Total Level, Level Direct (0x50 to 0x67) */
77 #define OPL4_REG_LEVEL 0x50
78 #define OPL4_TOTAL_LEVEL_MASK 0xfe
79 #define OPL4_LEVEL_DIRECT_BIT 0x01
80
81 /* Key On, Damp, LFO RST, CH, Panpot (0x68 to 0x7F) */
82 #define OPL4_REG_MISC 0x68
83 #define OPL4_KEY_ON_BIT 0x80
84 #define OPL4_DAMP_BIT 0x40
85 #define OPL4_LFO_RESET_BIT 0x20
86 #define OPL4_OUTPUT_CHANNEL_BIT 0x10
87 #define OPL4_PAN_POT_MASK 0x0f
88
89 /* LFO, VIB (0x80 to 0x97) */
90 #define OPL4_REG_LFO_VIBRATO 0x80
91 #define OPL4_LFO_FREQUENCY_MASK 0x38
92 #define OPL4_VIBRATO_DEPTH_MASK 0x07
93 #define OPL4_CHORUS_SEND_MASK 0xc0 /* ML only */
94
95 /* Attack / Decay 1 rate (0x98 to 0xAF) */
96 #define OPL4_REG_ATTACK_DECAY1 0x98
97 #define OPL4_ATTACK_RATE_MASK 0xf0
98 #define OPL4_DECAY1_RATE_MASK 0x0f
99
100 /* Decay level / 2 rate (0xB0 to 0xC7) */
101 #define OPL4_REG_LEVEL_DECAY2 0xb0
102 #define OPL4_DECAY_LEVEL_MASK 0xf0
103 #define OPL4_DECAY2_RATE_MASK 0x0f
104
105 /* Release rate / Rate correction (0xC8 to 0xDF) */
106 #define OPL4_REG_RELEASE_CORRECTION 0xc8
107 #define OPL4_RELEASE_RATE_MASK 0x0f
108 #define OPL4_RATE_INTERPOLATION_MASK 0xf0
109
110 /* AM (0xE0 to 0xF7) */
111 #define OPL4_REG_TREMOLO 0xe0
112 #define OPL4_TREMOLO_DEPTH_MASK 0x07
113 #define OPL4_REVERB_SEND_MASK 0xe0 /* ML only */
114
115 /* Mixer */
116 #define OPL4_REG_MIX_CONTROL_FM 0xf8
117 #define OPL4_REG_MIX_CONTROL_PCM 0xf9
118 #define OPL4_MIX_LEFT_MASK 0x07
119 #define OPL4_MIX_RIGHT_MASK 0x38
120
121 #define OPL4_REG_ATC 0xfa
122 #define OPL4_ATC_BIT 0x01 /* ???, ML only */
123
124 /* bits in the OPL3 Status register */
125 #define OPL4_STATUS_BUSY 0x01
126 #define OPL4_STATUS_LOAD 0x02
127
128
129 #define OPL4_MAX_VOICES 24
130
131 #define SNDRV_SEQ_DEV_ID_OPL4 "opl4-synth"
132
133
134 struct opl4_sound {
135 u16 tone;
136 s16 pitch_offset;
137 u8 key_scaling;
138 s8 panpot;
139 u8 vibrato;
140 u8 tone_attenuate;
141 u8 volume_factor;
142 u8 reg_lfo_vibrato;
143 u8 reg_attack_decay1;
144 u8 reg_level_decay2;
145 u8 reg_release_correction;
146 u8 reg_tremolo;
147 };
148
149 struct opl4_region {
150 u8 key_min, key_max;
151 struct opl4_sound sound;
152 };
153
154 struct opl4_region_ptr {
155 int count;
156 const struct opl4_region *regions;
157 };
158
159 struct opl4_voice {
160 struct list_head list;
161 int number;
162 struct snd_midi_channel *chan;
163 int note;
164 int velocity;
165 const struct opl4_sound *sound;
166 u8 level_direct;
167 u8 reg_f_number;
168 u8 reg_misc;
169 u8 reg_lfo_vibrato;
170 };
171
172 struct snd_opl4 {
173 unsigned long fm_port;
174 unsigned long pcm_port;
175 struct resource *res_fm_port;
176 struct resource *res_pcm_port;
177 unsigned short hardware;
178 spinlock_t reg_lock;
179 struct snd_card *card;
180
181 #ifdef CONFIG_SND_PROC_FS
182 struct snd_info_entry *proc_entry;
183 int memory_access;
184 #endif
185 struct mutex access_mutex;
186
187 #if IS_ENABLED(CONFIG_SND_SEQUENCER)
188 int used;
189
190 int seq_dev_num;
191 int seq_client;
192 struct snd_seq_device *seq_dev;
193
194 struct snd_midi_channel_set *chset;
195 struct opl4_voice voices[OPL4_MAX_VOICES];
196 struct list_head off_voices;
197 struct list_head on_voices;
198 #endif
199 };
200
201 /* opl4_lib.c */
202 void snd_opl4_write(struct snd_opl4 *opl4, u8 reg, u8 value);
203 u8 snd_opl4_read(struct snd_opl4 *opl4, u8 reg);
204 void snd_opl4_read_memory(struct snd_opl4 *opl4, char *buf, int offset, int size);
205 void snd_opl4_write_memory(struct snd_opl4 *opl4, const char *buf, int offset, int size);
206
207 /* opl4_mixer.c */
208 int snd_opl4_create_mixer(struct snd_opl4 *opl4);
209
210 #ifdef CONFIG_SND_PROC_FS
211 /* opl4_proc.c */
212 int snd_opl4_create_proc(struct snd_opl4 *opl4);
213 void snd_opl4_free_proc(struct snd_opl4 *opl4);
214 #else
215 static inline int snd_opl4_create_proc(struct snd_opl4 *opl4) { return 0; }
216 static inline void snd_opl4_free_proc(struct snd_opl4 *opl4) {}
217 #endif
218
219 /* opl4_seq.c */
220 extern int volume_boost;
221
222 /* opl4_synth.c */
223 void snd_opl4_synth_reset(struct snd_opl4 *opl4);
224 void snd_opl4_synth_shutdown(struct snd_opl4 *opl4);
225 void snd_opl4_note_on(void *p, int note, int vel, struct snd_midi_channel *chan);
226 void snd_opl4_note_off(void *p, int note, int vel, struct snd_midi_channel *chan);
227 void snd_opl4_terminate_note(void *p, int note, struct snd_midi_channel *chan);
228 void snd_opl4_control(void *p, int type, struct snd_midi_channel *chan);
229 void snd_opl4_sysex(void *p, unsigned char *buf, int len, int parsed, struct snd_midi_channel_set *chset);
230
231 /* yrw801.c */
232 int snd_yrw801_detect(struct snd_opl4 *opl4);
233 extern const struct opl4_region_ptr snd_yrw801_regions[];
234
235 #endif /* __OPL4_LOCAL_H */
236
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