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/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef __SOUND_GUS_H #define __SOUND_GUS_H /* * Global structures used for GUS part of ALSA driver * Copyright (c) by Jaroslav Kysela <perex@perex.cz> */ #include <sound/pcm.h> #include <sound/rawmidi.h> #include <sound/timer.h> #include <sound/seq_midi_emul.h> #include <sound/seq_device.h> #include <linux/io.h> /* IO ports */ #define GUSP(gus, x) ((gus)->gf1.port + SNDRV_g_u_s_##x) #define SNDRV_g_u_s_MIDICTRL (0x320-0x220) #define SNDRV_g_u_s_MIDISTAT (0x320-0x220) #define SNDRV_g_u_s_MIDIDATA (0x321-0x220) #define SNDRV_g_u_s_GF1PAGE (0x322-0x220) #define SNDRV_g_u_s_GF1REGSEL (0x323-0x220) #define SNDRV_g_u_s_GF1DATALOW (0x324-0x220) #define SNDRV_g_u_s_GF1DATAHIGH (0x325-0x220) #define SNDRV_g_u_s_IRQSTAT (0x226-0x220) #define SNDRV_g_u_s_TIMERCNTRL (0x228-0x220) #define SNDRV_g_u_s_TIMERDATA (0x229-0x220) #define SNDRV_g_u_s_DRAM (0x327-0x220) #define SNDRV_g_u_s_MIXCNTRLREG (0x220-0x220) #define SNDRV_g_u_s_IRQDMACNTRLREG (0x22b-0x220) #define SNDRV_g_u_s_REGCNTRLS (0x22f-0x220) #define SNDRV_g_u_s_BOARDVERSION (0x726-0x220) #define SNDRV_g_u_s_MIXCNTRLPORT (0x726-0x220) #define SNDRV_g_u_s_IVER (0x325-0x220) #define SNDRV_g_u_s_MIXDATAPORT (0x326-0x220) #define SNDRV_g_u_s_MAXCNTRLPORT (0x326-0x220) /* GF1 registers */ /* global registers */ #define SNDRV_GF1_GB_ACTIVE_VOICES 0x0e #define SNDRV_GF1_GB_VOICES_IRQ 0x0f #define SNDRV_GF1_GB_GLOBAL_MODE 0x19 #define SNDRV_GF1_GW_LFO_BASE 0x1a #define SNDRV_GF1_GB_VOICES_IRQ_READ 0x1f #define SNDRV_GF1_GB_DRAM_DMA_CONTROL 0x41 #define SNDRV_GF1_GW_DRAM_DMA_LOW 0x42 #define SNDRV_GF1_GW_DRAM_IO_LOW 0x43 #define SNDRV_GF1_GB_DRAM_IO_HIGH 0x44 #define SNDRV_GF1_GB_SOUND_BLASTER_CONTROL 0x45 #define SNDRV_GF1_GB_ADLIB_TIMER_1 0x46 #define SNDRV_GF1_GB_ADLIB_TIMER_2 0x47 #define SNDRV_GF1_GB_RECORD_RATE 0x48 #define SNDRV_GF1_GB_REC_DMA_CONTROL 0x49 #define SNDRV_GF1_GB_JOYSTICK_DAC_LEVEL 0x4b #define SNDRV_GF1_GB_RESET 0x4c #define SNDRV_GF1_GB_DRAM_DMA_HIGH 0x50 #define SNDRV_GF1_GW_DRAM_IO16 0x51 #define SNDRV_GF1_GW_MEMORY_CONFIG 0x52 #define SNDRV_GF1_GB_MEMORY_CONTROL 0x53 #define SNDRV_GF1_GW_FIFO_RECORD_BASE_ADDR 0x54 #define SNDRV_GF1_GW_FIFO_PLAY_BASE_ADDR 0x55 #define SNDRV_GF1_GW_FIFO_SIZE 0x56 #define SNDRV_GF1_GW_INTERLEAVE 0x57 #define SNDRV_GF1_GB_COMPATIBILITY 0x59 #define SNDRV_GF1_GB_DECODE_CONTROL 0x5a #define SNDRV_GF1_GB_VERSION_NUMBER 0x5b #define SNDRV_GF1_GB_MPU401_CONTROL_A 0x5c #define SNDRV_GF1_GB_MPU401_CONTROL_B 0x5d #define SNDRV_GF1_GB_EMULATION_IRQ 0x60 /* voice specific registers */ #define SNDRV_GF1_VB_ADDRESS_CONTROL 0x00 #define SNDRV_GF1_VW_FREQUENCY 0x01 #define SNDRV_GF1_VW_START_HIGH 0x02 #define SNDRV_GF1_VW_START_LOW 0x03 #define SNDRV_GF1_VA_START SNDRV_GF1_VW_START_HIGH #define SNDRV_GF1_VW_END_HIGH 0x04 #define SNDRV_GF1_VW_END_LOW 0x05 #define SNDRV_GF1_VA_END SNDRV_GF1_VW_END_HIGH #define SNDRV_GF1_VB_VOLUME_RATE 0x06 #define SNDRV_GF1_VB_VOLUME_START 0x07 #define SNDRV_GF1_VB_VOLUME_END 0x08 #define SNDRV_GF1_VW_VOLUME 0x09 #define SNDRV_GF1_VW_CURRENT_HIGH 0x0a #define SNDRV_GF1_VW_CURRENT_LOW 0x0b #define SNDRV_GF1_VA_CURRENT SNDRV_GF1_VW_CURRENT_HIGH #define SNDRV_GF1_VB_PAN 0x0c #define SNDRV_GF1_VW_OFFSET_RIGHT 0x0c #define SNDRV_GF1_VB_VOLUME_CONTROL 0x0d #define SNDRV_GF1_VB_UPPER_ADDRESS 0x10 #define SNDRV_GF1_VW_EFFECT_HIGH 0x11 #define SNDRV_GF1_VW_EFFECT_LOW 0x12 #define SNDRV_GF1_VA_EFFECT SNDRV_GF1_VW_EFFECT_HIGH #define SNDRV_GF1_VW_OFFSET_LEFT 0x13 #define SNDRV_GF1_VB_ACCUMULATOR 0x14 #define SNDRV_GF1_VB_MODE 0x15 #define SNDRV_GF1_VW_EFFECT_VOLUME 0x16 #define SNDRV_GF1_VB_FREQUENCY_LFO 0x17 #define SNDRV_GF1_VB_VOLUME_LFO 0x18 #define SNDRV_GF1_VW_OFFSET_RIGHT_FINAL 0x1b #define SNDRV_GF1_VW_OFFSET_LEFT_FINAL 0x1c #define SNDRV_GF1_VW_EFFECT_VOLUME_FINAL 0x1d /* ICS registers */ #define SNDRV_ICS_MIC_DEV 0 #define SNDRV_ICS_LINE_DEV 1 #define SNDRV_ICS_CD_DEV 2 #define SNDRV_ICS_GF1_DEV 3 #define SNDRV_ICS_NONE_DEV 4 #define SNDRV_ICS_MASTER_DEV 5 /* LFO */ #define SNDRV_LFO_TREMOLO 0 #define SNDRV_LFO_VIBRATO 1 /* misc */ #define SNDRV_GF1_DMA_UNSIGNED 0x80 #define SNDRV_GF1_DMA_16BIT 0x40 #define SNDRV_GF1_DMA_IRQ 0x20 #define SNDRV_GF1_DMA_WIDTH16 0x04 #define SNDRV_GF1_DMA_READ 0x02 /* read from GUS's DRAM */ #define SNDRV_GF1_DMA_ENABLE 0x01 /* ramp ranges */ #define SNDRV_GF1_ATTEN(x) (snd_gf1_atten_table[x]) #define SNDRV_GF1_MIN_VOLUME 1800 #define SNDRV_GF1_MAX_VOLUME 4095 #define SNDRV_GF1_MIN_OFFSET (SNDRV_GF1_MIN_VOLUME>>4) #define SNDRV_GF1_MAX_OFFSET 255 #define SNDRV_GF1_MAX_TDEPTH 90 /* defines for memory manager */ #define SNDRV_GF1_MEM_BLOCK_16BIT 0x0001 #define SNDRV_GF1_MEM_OWNER_DRIVER 0x0001 #define SNDRV_GF1_MEM_OWNER_WAVE_SIMPLE 0x0002 #define SNDRV_GF1_MEM_OWNER_WAVE_GF1 0x0003 #define SNDRV_GF1_MEM_OWNER_WAVE_IWFFFF 0x0004 /* constants for interrupt handlers */ #define SNDRV_GF1_HANDLER_MIDI_OUT 0x00010000 #define SNDRV_GF1_HANDLER_MIDI_IN 0x00020000 #define SNDRV_GF1_HANDLER_TIMER1 0x00040000 #define SNDRV_GF1_HANDLER_TIMER2 0x00080000 #define SNDRV_GF1_HANDLER_VOICE 0x00100000 #define SNDRV_GF1_HANDLER_DMA_WRITE 0x00200000 #define SNDRV_GF1_HANDLER_DMA_READ 0x00400000 #define SNDRV_GF1_HANDLER_ALL (0xffff0000&~SNDRV_GF1_HANDLER_VOICE) /* constants for DMA flags */ #define SNDRV_GF1_DMA_TRIGGER 1 /* --- */ struct snd_gus_card; /* GF1 specific structure */ struct snd_gf1_bank_info { unsigned int address; unsigned int size; }; struct snd_gf1_mem_block { unsigned short flags; /* flags - SNDRV_GF1_MEM_BLOCK_XXXX */ unsigned short owner; /* owner - SNDRV_GF1_MEM_OWNER_XXXX */ unsigned int share; /* share count */ unsigned int share_id[4]; /* share ID */ unsigned int ptr; unsigned int size; char *name; struct snd_gf1_mem_block *next; struct snd_gf1_mem_block *prev; }; struct snd_gf1_mem { struct snd_gf1_bank_info banks_8[4]; struct snd_gf1_bank_info banks_16[4]; struct snd_gf1_mem_block *first; struct snd_gf1_mem_block *last; struct mutex memory_mutex; }; struct snd_gf1_dma_block { void *buffer; /* buffer in computer's RAM */ unsigned long buf_addr; /* buffer address */ unsigned int addr; /* address in onboard memory */ unsigned int count; /* count in bytes */ unsigned int cmd; /* DMA command (format) */ void (*ack)(struct snd_gus_card * gus, void *private_data); void *private_data; struct snd_gf1_dma_block *next; }; struct snd_gus_port { struct snd_midi_channel_set * chset; struct snd_gus_card * gus; int mode; /* operation mode */ int client; /* sequencer client number */ int port; /* sequencer port number */ unsigned int midi_has_voices: 1; }; struct snd_gus_voice; #define SNDRV_GF1_VOICE_TYPE_PCM 0 #define SNDRV_GF1_VOICE_TYPE_SYNTH 1 #define SNDRV_GF1_VOICE_TYPE_MIDI 2 #define SNDRV_GF1_VFLG_RUNNING (1<<0) #define SNDRV_GF1_VFLG_EFFECT_TIMER1 (1<<1) #define SNDRV_GF1_VFLG_PAN (1<<2) enum snd_gus_volume_state { VENV_BEFORE, VENV_ATTACK, VENV_SUSTAIN, VENV_RELEASE, VENV_DONE, VENV_VOLUME }; struct snd_gus_voice { int number; unsigned int use: 1, pcm: 1, synth:1, midi: 1; unsigned int flags; unsigned char client; unsigned char port; unsigned char index; unsigned char pad; #ifdef CONFIG_SND_DEBUG unsigned int interrupt_stat_wave; unsigned int interrupt_stat_volume; #endif void (*handler_wave) (struct snd_gus_card * gus, struct snd_gus_voice * voice); void (*handler_volume) (struct snd_gus_card * gus, struct snd_gus_voice * voice); void (*handler_effect) (struct snd_gus_card * gus, struct snd_gus_voice * voice); void (*volume_change) (struct snd_gus_card * gus); struct snd_gus_sample_ops *sample_ops; /* running status / registers */ unsigned short fc_register; unsigned short fc_lfo; unsigned short gf1_volume; unsigned char control; unsigned char mode; unsigned char gf1_pan; unsigned char effect_accumulator; unsigned char volume_control; unsigned char venv_value_next; enum snd_gus_volume_state venv_state; enum snd_gus_volume_state venv_state_prev; unsigned short vlo; unsigned short vro; unsigned short gf1_effect_volume; /* --- */ void *private_data; void (*private_free)(struct snd_gus_voice *voice); }; struct snd_gf1 { unsigned int enh_mode:1, /* enhanced mode (GFA1) */ hw_lfo:1, /* use hardware LFO */ sw_lfo:1, /* use software LFO */ effect:1; /* use effect voices */ unsigned long port; /* port of GF1 chip */ struct resource *res_port1; struct resource *res_port2; int irq; /* IRQ number */ int dma1; /* DMA1 number */ int dma2; /* DMA2 number */ unsigned int memory; /* GUS's DRAM size in bytes */ unsigned int rom_memory; /* GUS's ROM size in bytes */ unsigned int rom_present; /* bitmask */ unsigned int rom_banks; /* GUS's ROM banks */ struct snd_gf1_mem mem_alloc; /* registers */ unsigned short reg_page; unsigned short reg_regsel; unsigned short reg_data8; unsigned short reg_data16; unsigned short reg_irqstat; unsigned short reg_dram; unsigned short reg_timerctrl; unsigned short reg_timerdata; unsigned char ics_regs[6][2]; /* --------- */ unsigned char active_voices; /* active voices */ unsigned char active_voice; /* selected voice (GF1PAGE register) */ struct snd_gus_voice voices[32]; /* GF1 voices */ unsigned int default_voice_address; unsigned short playback_freq; /* GF1 playback (mixing) frequency */ unsigned short mode; /* see to SNDRV_GF1_MODE_XXXX */ unsigned char volume_ramp; unsigned char smooth_pan; unsigned char full_range_pan; unsigned char pad0; unsigned char *lfos; /* interrupt handlers */ void (*interrupt_handler_midi_out) (struct snd_gus_card * gus); void (*interrupt_handler_midi_in) (struct snd_gus_card * gus); void (*interrupt_handler_timer1) (struct snd_gus_card * gus); void (*interrupt_handler_timer2) (struct snd_gus_card * gus); void (*interrupt_handler_dma_write) (struct snd_gus_card * gus); void (*interrupt_handler_dma_read) (struct snd_gus_card * gus); #ifdef CONFIG_SND_DEBUG unsigned int interrupt_stat_midi_out; unsigned int interrupt_stat_midi_in; unsigned int interrupt_stat_timer1; unsigned int interrupt_stat_timer2; unsigned int interrupt_stat_dma_write; unsigned int interrupt_stat_dma_read; unsigned int interrupt_stat_voice_lost; #endif /* synthesizer */ int seq_client; struct snd_gus_port seq_ports[4]; /* timer */ unsigned short timer_enabled; struct snd_timer *timer1; struct snd_timer *timer2; /* midi */ unsigned short uart_cmd; unsigned int uart_framing; unsigned int uart_overrun; /* dma operations */ unsigned int dma_flags; unsigned int dma_shared; struct snd_gf1_dma_block *dma_data_pcm; struct snd_gf1_dma_block *dma_data_pcm_last; struct snd_gf1_dma_block *dma_data_synth; struct snd_gf1_dma_block *dma_data_synth_last; void (*dma_ack)(struct snd_gus_card * gus, void *private_data); void *dma_private_data; /* pcm */ int pcm_channels; int pcm_alloc_voices; unsigned short pcm_volume_level_left; unsigned short pcm_volume_level_right; unsigned short pcm_volume_level_left1; unsigned short pcm_volume_level_right1; unsigned char pcm_rcntrl_reg; unsigned char pad_end; }; /* main structure for GUS card */ struct snd_gus_card { struct snd_card *card; unsigned int initialized: 1, /* resources were initialized */ equal_irq:1, /* GF1 and CODEC shares IRQ (GUS MAX only) */ equal_dma:1, /* if dma channels are equal (not valid for daughter board) */ ics_flag:1, /* have we ICS mixer chip */ ics_flipped:1, /* ICS mixer have flipped some channels? */ codec_flag:1, /* have we CODEC chip? */ max_flag:1, /* have we GUS MAX card? */ max_ctrl_flag:1, /* have we original GUS MAX card? */ daughter_flag:1, /* have we daughter board? */ interwave:1, /* hey - we have InterWave card */ ess_flag:1, /* ESS chip found... GUS Extreme */ ace_flag:1, /* GUS ACE detected */ uart_enable:1; /* enable MIDI UART */ unsigned short revision; /* revision of chip */ unsigned short max_cntrl_val; /* GUS MAX control value */ unsigned short mix_cntrl_reg; /* mixer control register */ unsigned short joystick_dac; /* joystick DAC level */ int timer_dev; /* timer device */ struct snd_gf1 gf1; /* gf1 specific variables */ struct snd_pcm *pcm; struct snd_pcm_substream *pcm_cap_substream; unsigned int c_dma_size; unsigned int c_period_size; unsigned int c_pos; struct snd_rawmidi *midi_uart; struct snd_rawmidi_substream *midi_substream_output; struct snd_rawmidi_substream *midi_substream_input; spinlock_t reg_lock; spinlock_t voice_alloc; spinlock_t active_voice_lock; spinlock_t event_lock; spinlock_t dma_lock; spinlock_t pcm_volume_level_lock; spinlock_t uart_cmd_lock; struct mutex dma_mutex; struct mutex register_mutex; }; /* I/O functions for GF1/InterWave chip - gus_io.c */ static inline void snd_gf1_select_voice(struct snd_gus_card * gus, int voice) { unsigned long flags; spin_lock_irqsave(&gus->active_voice_lock, flags); if (voice != gus->gf1.active_voice) { gus->gf1.active_voice = voice; outb(voice, GUSP(gus, GF1PAGE)); } spin_unlock_irqrestore(&gus->active_voice_lock, flags); } static inline void snd_gf1_uart_cmd(struct snd_gus_card * gus, unsigned char b) { outb(gus->gf1.uart_cmd = b, GUSP(gus, MIDICTRL)); } static inline unsigned char snd_gf1_uart_stat(struct snd_gus_card * gus) { return inb(GUSP(gus, MIDISTAT)); } static inline void snd_gf1_uart_put(struct snd_gus_card * gus, unsigned char b) { outb(b, GUSP(gus, MIDIDATA)); } static inline unsigned char snd_gf1_uart_get(struct snd_gus_card * gus) { return inb(GUSP(gus, MIDIDATA)); } extern void snd_gf1_delay(struct snd_gus_card * gus); extern void snd_gf1_ctrl_stop(struct snd_gus_card * gus, unsigned char reg); extern void snd_gf1_write8(struct snd_gus_card * gus, unsigned char reg, unsigned char data); extern unsigned char snd_gf1_look8(struct snd_gus_card * gus, unsigned char reg); static inline unsigned char snd_gf1_read8(struct snd_gus_card * gus, unsigned char reg) { return snd_gf1_look8(gus, reg | 0x80); } extern void snd_gf1_write16(struct snd_gus_card * gus, unsigned char reg, unsigned int data); extern unsigned short snd_gf1_look16(struct snd_gus_card * gus, unsigned char reg); static inline unsigned short snd_gf1_read16(struct snd_gus_card * gus, unsigned char reg) { return snd_gf1_look16(gus, reg | 0x80); } extern void snd_gf1_adlib_write(struct snd_gus_card * gus, unsigned char reg, unsigned char data); extern void snd_gf1_dram_addr(struct snd_gus_card * gus, unsigned int addr); extern void snd_gf1_poke(struct snd_gus_card * gus, unsigned int addr, unsigned char data); extern unsigned char snd_gf1_peek(struct snd_gus_card * gus, unsigned int addr); extern void snd_gf1_write_addr(struct snd_gus_card * gus, unsigned char reg, unsigned int addr, short w_16bit); extern unsigned int snd_gf1_read_addr(struct snd_gus_card * gus, unsigned char reg, short w_16bit); extern void snd_gf1_i_ctrl_stop(struct snd_gus_card * gus, unsigned char reg); extern void snd_gf1_i_write8(struct snd_gus_card * gus, unsigned char reg, unsigned char data); extern unsigned char snd_gf1_i_look8(struct snd_gus_card * gus, unsigned char reg); extern void snd_gf1_i_write16(struct snd_gus_card * gus, unsigned char reg, unsigned int data); static inline unsigned char snd_gf1_i_read8(struct snd_gus_card * gus, unsigned char reg) { return snd_gf1_i_look8(gus, reg | 0x80); } extern unsigned short snd_gf1_i_look16(struct snd_gus_card * gus, unsigned char reg); static inline unsigned short snd_gf1_i_read16(struct snd_gus_card * gus, unsigned char reg) { return snd_gf1_i_look16(gus, reg | 0x80); } extern void snd_gf1_select_active_voices(struct snd_gus_card * gus); /* gus_lfo.c */ struct _SND_IW_LFO_PROGRAM { unsigned short freq_and_control; unsigned char depth_final; unsigned char depth_inc; unsigned short twave; unsigned short depth; }; #if 0 extern irqreturn_t snd_gf1_lfo_effect_interrupt(struct snd_gus_card * gus, snd_gf1_voice_t * voice); #endif extern void snd_gf1_lfo_init(struct snd_gus_card * gus); extern void snd_gf1_lfo_done(struct snd_gus_card * gus); extern void snd_gf1_lfo_program(struct snd_gus_card * gus, int voice, int lfo_type, struct _SND_IW_LFO_PROGRAM *program); extern void snd_gf1_lfo_enable(struct snd_gus_card * gus, int voice, int lfo_type); extern void snd_gf1_lfo_disable(struct snd_gus_card * gus, int voice, int lfo_type); extern void snd_gf1_lfo_change_freq(struct snd_gus_card * gus, int voice, int lfo_type, int freq); extern void snd_gf1_lfo_change_depth(struct snd_gus_card * gus, int voice, int lfo_type, int depth); extern void snd_gf1_lfo_setup(struct snd_gus_card * gus, int voice, int lfo_type, int freq, int current_depth, int depth, int sweep, int shape); extern void snd_gf1_lfo_shutdown(struct snd_gus_card * gus, int voice, int lfo_type); #if 0 extern void snd_gf1_lfo_command(struct snd_gus_card * gus, int voice, unsigned char *command); #endif /* gus_mem.c */ void snd_gf1_mem_lock(struct snd_gf1_mem * alloc, int xup); int snd_gf1_mem_xfree(struct snd_gf1_mem * alloc, struct snd_gf1_mem_block * block); struct snd_gf1_mem_block *snd_gf1_mem_alloc(struct snd_gf1_mem * alloc, int owner, char *name, int size, int w_16, int align, unsigned int *share_id); int snd_gf1_mem_free(struct snd_gf1_mem * alloc, unsigned int address); int snd_gf1_mem_free_owner(struct snd_gf1_mem * alloc, int owner); int snd_gf1_mem_init(struct snd_gus_card * gus); int snd_gf1_mem_done(struct snd_gus_card * gus); /* gus_mem_proc.c */ int snd_gf1_mem_proc_init(struct snd_gus_card * gus); /* gus_dma.c */ int snd_gf1_dma_init(struct snd_gus_card * gus); int snd_gf1_dma_done(struct snd_gus_card * gus); int snd_gf1_dma_transfer_block(struct snd_gus_card * gus, struct snd_gf1_dma_block * block, int atomic, int synth); /* gus_volume.c */ unsigned short snd_gf1_lvol_to_gvol_raw(unsigned int vol); unsigned short snd_gf1_translate_freq(struct snd_gus_card * gus, unsigned int freq2); /* gus_reset.c */ void snd_gf1_set_default_handlers(struct snd_gus_card * gus, unsigned int what); void snd_gf1_smart_stop_voice(struct snd_gus_card * gus, unsigned short voice); void snd_gf1_stop_voice(struct snd_gus_card * gus, unsigned short voice); void snd_gf1_stop_voices(struct snd_gus_card * gus, unsigned short v_min, unsigned short v_max); struct snd_gus_voice *snd_gf1_alloc_voice(struct snd_gus_card * gus, int type, int client, int port); void snd_gf1_free_voice(struct snd_gus_card * gus, struct snd_gus_voice *voice); int snd_gf1_start(struct snd_gus_card * gus); int snd_gf1_stop(struct snd_gus_card * gus); /* gus_mixer.c */ int snd_gf1_new_mixer(struct snd_gus_card * gus); /* gus_pcm.c */ int snd_gf1_pcm_new(struct snd_gus_card *gus, int pcm_dev, int control_index); #ifdef CONFIG_SND_DEBUG extern void snd_gf1_print_voice_registers(struct snd_gus_card * gus); #endif /* gus.c */ int snd_gus_use_inc(struct snd_gus_card * gus); void snd_gus_use_dec(struct snd_gus_card * gus); int snd_gus_create(struct snd_card *card, unsigned long port, int irq, int dma1, int dma2, int timer_dev, int voices, int pcm_channels, int effect, struct snd_gus_card ** rgus); int snd_gus_initialize(struct snd_gus_card * gus); /* gus_irq.c */ irqreturn_t snd_gus_interrupt(int irq, void *dev_id); #ifdef CONFIG_SND_DEBUG void snd_gus_irq_profile_init(struct snd_gus_card *gus); #endif /* gus_uart.c */ int snd_gf1_rawmidi_new(struct snd_gus_card *gus, int device); /* gus_dram.c */ int snd_gus_dram_write(struct snd_gus_card *gus, char __user *ptr, unsigned int addr, unsigned int size); int snd_gus_dram_read(struct snd_gus_card *gus, char __user *ptr, unsigned int addr, unsigned int size, int rom); /* gus_timer.c */ void snd_gf1_timers_init(struct snd_gus_card *gus); void snd_gf1_timers_done(struct snd_gus_card *gus); #endif /* __SOUND_GUS_H */