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linux/sound/drivers/opl4/opl4_local.h
Takashi Iwai 111b0cdb97 ALSA: seq: Allow the modular sequencer registration 
Many drivers bind the sequencer stuff in off-load by another driver
module, so that it's loaded only on demand.  In the current code, this
mechanism doesn't work when the driver is built-in while the sequencer
is module.  We check with IS_REACHABLE() and enable only when the
sequencer is in the same level of build.

However, this is basically a overshoot.  The binder code
(snd-seq-device) is an individual module from the sequencer core
(snd-seq), and we just have to make the former a built-in while
keeping the latter a module for allowing the scenario like the above.

This patch achieves that by rewriting Kconfig slightly.  Now, a driver
that provides the manual sequencer device binding should select
CONFIG_SND_SEQ_DEVICE in a way as
	select SND_SEQ_DEVICE if SND_SEQUENCER != n

Note that the "!=n" is needed here to avoid the influence of the
sequencer core is module while the driver is built-in.

Also, since rawmidi.o may be linked with snd_seq_device.o when
built-in, we have to shuffle the code to make the linker happy.
(the kernel linker isn't smart enough yet to handle such a case.)
That is, snd_seq_device.c is moved to sound/core from sound/core/seq,
as well as Makefile.

Last but not least, the patch replaces the code using IS_REACHABLE()
with IS_ENABLED(), since now the condition meets always when enabled.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-06-12 08:43:33 +02:00

236 lines
6.8 KiB
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/*
* Local definitions for the OPL4 driver
*
* Copyright (c) 2003 by Clemens Ladisch <clemens@ladisch.de>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* Alternatively, this software may be distributed and/or modified 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 SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef __OPL4_LOCAL_H
#define __OPL4_LOCAL_H
#include <sound/opl4.h>
/*
* Register numbers
*/
#define OPL4_REG_TEST0 0x00
#define OPL4_REG_TEST1 0x01
#define OPL4_REG_MEMORY_CONFIGURATION 0x02
#define OPL4_MODE_BIT 0x01
#define OPL4_MTYPE_BIT 0x02
#define OPL4_TONE_HEADER_MASK 0x1c
#define OPL4_DEVICE_ID_MASK 0xe0
#define OPL4_REG_MEMORY_ADDRESS_HIGH 0x03
#define OPL4_REG_MEMORY_ADDRESS_MID 0x04
#define OPL4_REG_MEMORY_ADDRESS_LOW 0x05
#define OPL4_REG_MEMORY_DATA 0x06
/*
* Offsets to the register banks for voices. To get the
* register number just add the voice number to the bank offset.
*
* Wave Table Number low bits (0x08 to 0x1F)
*/
#define OPL4_REG_TONE_NUMBER 0x08
/* Wave Table Number high bit, F-Number low bits (0x20 to 0x37) */
#define OPL4_REG_F_NUMBER 0x20
#define OPL4_TONE_NUMBER_BIT8 0x01
#define OPL4_F_NUMBER_LOW_MASK 0xfe
/* F-Number high bits, Octave, Pseudo-Reverb (0x38 to 0x4F) */
#define OPL4_REG_OCTAVE 0x38
#define OPL4_F_NUMBER_HIGH_MASK 0x07
#define OPL4_BLOCK_MASK 0xf0
#define OPL4_PSEUDO_REVERB_BIT 0x08
/* Total Level, Level Direct (0x50 to 0x67) */
#define OPL4_REG_LEVEL 0x50
#define OPL4_TOTAL_LEVEL_MASK 0xfe
#define OPL4_LEVEL_DIRECT_BIT 0x01
/* Key On, Damp, LFO RST, CH, Panpot (0x68 to 0x7F) */
#define OPL4_REG_MISC 0x68
#define OPL4_KEY_ON_BIT 0x80
#define OPL4_DAMP_BIT 0x40
#define OPL4_LFO_RESET_BIT 0x20
#define OPL4_OUTPUT_CHANNEL_BIT 0x10
#define OPL4_PAN_POT_MASK 0x0f
/* LFO, VIB (0x80 to 0x97) */
#define OPL4_REG_LFO_VIBRATO 0x80
#define OPL4_LFO_FREQUENCY_MASK 0x38
#define OPL4_VIBRATO_DEPTH_MASK 0x07
#define OPL4_CHORUS_SEND_MASK 0xc0 /* ML only */
/* Attack / Decay 1 rate (0x98 to 0xAF) */
#define OPL4_REG_ATTACK_DECAY1 0x98
#define OPL4_ATTACK_RATE_MASK 0xf0
#define OPL4_DECAY1_RATE_MASK 0x0f
/* Decay level / 2 rate (0xB0 to 0xC7) */
#define OPL4_REG_LEVEL_DECAY2 0xb0
#define OPL4_DECAY_LEVEL_MASK 0xf0
#define OPL4_DECAY2_RATE_MASK 0x0f
/* Release rate / Rate correction (0xC8 to 0xDF) */
#define OPL4_REG_RELEASE_CORRECTION 0xc8
#define OPL4_RELEASE_RATE_MASK 0x0f
#define OPL4_RATE_INTERPOLATION_MASK 0xf0
/* AM (0xE0 to 0xF7) */
#define OPL4_REG_TREMOLO 0xe0
#define OPL4_TREMOLO_DEPTH_MASK 0x07
#define OPL4_REVERB_SEND_MASK 0xe0 /* ML only */
/* Mixer */
#define OPL4_REG_MIX_CONTROL_FM 0xf8
#define OPL4_REG_MIX_CONTROL_PCM 0xf9
#define OPL4_MIX_LEFT_MASK 0x07
#define OPL4_MIX_RIGHT_MASK 0x38
#define OPL4_REG_ATC 0xfa
#define OPL4_ATC_BIT 0x01 /* ???, ML only */
/* bits in the OPL3 Status register */
#define OPL4_STATUS_BUSY 0x01
#define OPL4_STATUS_LOAD 0x02
#define OPL4_MAX_VOICES 24
#define SNDRV_SEQ_DEV_ID_OPL4 "opl4-synth"
struct opl4_sound {
u16 tone;
s16 pitch_offset;
u8 key_scaling;
s8 panpot;
u8 vibrato;
u8 tone_attenuate;
u8 volume_factor;
u8 reg_lfo_vibrato;
u8 reg_attack_decay1;
u8 reg_level_decay2;
u8 reg_release_correction;
u8 reg_tremolo;
};
struct opl4_region {
u8 key_min, key_max;
struct opl4_sound sound;
};
struct opl4_region_ptr {
int count;
const struct opl4_region *regions;
};
struct opl4_voice {
struct list_head list;
int number;
struct snd_midi_channel *chan;
int note;
int velocity;
const struct opl4_sound *sound;
u8 level_direct;
u8 reg_f_number;
u8 reg_misc;
u8 reg_lfo_vibrato;
};
struct snd_opl4 {
unsigned long fm_port;
unsigned long pcm_port;
struct resource *res_fm_port;
struct resource *res_pcm_port;
unsigned short hardware;
spinlock_t reg_lock;
struct snd_card *card;
#ifdef CONFIG_SND_PROC_FS
struct snd_info_entry *proc_entry;
int memory_access;
#endif
struct mutex access_mutex;
#if IS_ENABLED(CONFIG_SND_SEQUENCER)
int used;
int seq_dev_num;
int seq_client;
struct snd_seq_device *seq_dev;
struct snd_midi_channel_set *chset;
struct opl4_voice voices[OPL4_MAX_VOICES];
struct list_head off_voices;
struct list_head on_voices;
#endif
};
/* opl4_lib.c */
void snd_opl4_write(struct snd_opl4 *opl4, u8 reg, u8 value);
u8 snd_opl4_read(struct snd_opl4 *opl4, u8 reg);
void snd_opl4_read_memory(struct snd_opl4 *opl4, char *buf, int offset, int size);
void snd_opl4_write_memory(struct snd_opl4 *opl4, const char *buf, int offset, int size);
/* opl4_mixer.c */
int snd_opl4_create_mixer(struct snd_opl4 *opl4);
#ifdef CONFIG_SND_PROC_FS
/* opl4_proc.c */
int snd_opl4_create_proc(struct snd_opl4 *opl4);
void snd_opl4_free_proc(struct snd_opl4 *opl4);
#else
static inline int snd_opl4_create_proc(struct snd_opl4 *opl4) { return 0; }
static inline void snd_opl4_free_proc(struct snd_opl4 *opl4) {}
#endif
/* opl4_seq.c */
extern int volume_boost;
/* opl4_synth.c */
void snd_opl4_synth_reset(struct snd_opl4 *opl4);
void snd_opl4_synth_shutdown(struct snd_opl4 *opl4);
void snd_opl4_note_on(void *p, int note, int vel, struct snd_midi_channel *chan);
void snd_opl4_note_off(void *p, int note, int vel, struct snd_midi_channel *chan);
void snd_opl4_terminate_note(void *p, int note, struct snd_midi_channel *chan);
void snd_opl4_control(void *p, int type, struct snd_midi_channel *chan);
void snd_opl4_sysex(void *p, unsigned char *buf, int len, int parsed, struct snd_midi_channel_set *chset);
/* yrw801.c */
int snd_yrw801_detect(struct snd_opl4 *opl4);
extern const struct opl4_region_ptr snd_yrw801_regions[];
#endif /* __OPL4_LOCAL_H */
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