trident.h

linux 内核源代码

	   SECONDARY_ID= 0x00004000, */
	SECONDARY_ID	= 0x00004000,
	PCMOUT		= 0x00010000,
	SURROUT		= 0x00020000,
	CENTEROUT	= 0x00040000,
	LFEOUT		= 0x00080000,
	LINE1OUT	= 0x00100000,
	LINE2OUT	= 0x00200000,
	GPIOOUT		= 0x00400000,
	SI_AC97_PRIMARY_READY = 0x01000000,
	SI_AC97_SECONDARY_READY = 0x02000000,
	SI_AC97_POWERDOWN = 0x04000000,
};
                                                                                                                                   
/* PCM defaults */

#define T4D_DEFAULT_PCM_VOL	10	/* 0 - 255 */
#define T4D_DEFAULT_PCM_PAN	0	/* 0 - 127 */
#define T4D_DEFAULT_PCM_RVOL	127	/* 0 - 127 */
#define T4D_DEFAULT_PCM_CVOL	127	/* 0 - 127 */

struct snd_trident;
struct snd_trident_voice;
struct snd_trident_pcm_mixer;

struct snd_trident_sample_ops {
	void (*sample_start)(struct snd_trident *gus, struct snd_trident_voice *voice, snd_seq_position_t position);
	void (*sample_stop)(struct snd_trident *gus, struct snd_trident_voice *voice, int mode);
	void (*sample_freq)(struct snd_trident *gus, struct snd_trident_voice *voice, snd_seq_frequency_t freq);
	void (*sample_volume)(struct snd_trident *gus, struct snd_trident_voice *voice, struct snd_seq_ev_volume *volume);
	void (*sample_loop)(struct snd_trident *card, struct snd_trident_voice *voice, struct snd_seq_ev_loop *loop);
	void (*sample_pos)(struct snd_trident *card, struct snd_trident_voice *voice, snd_seq_position_t position);
	void (*sample_private1)(struct snd_trident *card, struct snd_trident_voice *voice, unsigned char *data);
};

struct snd_trident_port {
	struct snd_midi_channel_set * chset;
	struct snd_trident * trident;
	int mode;		/* operation mode */
	int client;		/* sequencer client number */
	int port;		/* sequencer port number */
	unsigned int midi_has_voices: 1;
};

struct snd_trident_memblk_arg {
	short first_page, last_page;
};

struct snd_trident_tlb {
	unsigned int * entries;		/* 16k-aligned TLB table */
	dma_addr_t entries_dmaaddr;	/* 16k-aligned PCI address to TLB table */
	unsigned long * shadow_entries;	/* shadow entries with virtual addresses */
	struct snd_dma_buffer buffer;
	struct snd_util_memhdr * memhdr;	/* page allocation list */
	struct snd_dma_buffer silent_page;
};

struct snd_trident_voice {
	unsigned int number;
	unsigned int use: 1,
	    pcm: 1,
	    synth:1,
	    midi: 1;
	unsigned int flags;
	unsigned char client;
	unsigned char port;
	unsigned char index;

	struct snd_seq_instr instr;
	struct snd_trident_sample_ops *sample_ops;

	/* channel parameters */
	unsigned int CSO;		/* 24 bits (16 on DX) */
	unsigned int ESO;		/* 24 bits (16 on DX) */
	unsigned int LBA;		/* 30 bits */
	unsigned short EC;		/* 12 bits */
	unsigned short Alpha;		/* 12 bits */
	unsigned short Delta;		/* 16 bits */
	unsigned short Attribute;	/* 16 bits - SiS 7018 */
	unsigned short Vol;		/* 12 bits (6.6) */
	unsigned char Pan;		/* 7 bits (1.4.2) */
	unsigned char GVSel;		/* 1 bit */
	unsigned char RVol;		/* 7 bits (5.2) */
	unsigned char CVol;		/* 7 bits (5.2) */
	unsigned char FMC;		/* 2 bits */
	unsigned char CTRL;		/* 4 bits */
	unsigned char FMS;		/* 4 bits */
	unsigned char LFO;		/* 8 bits */

	unsigned int negCSO;	/* nonzero - use negative CSO */

	struct snd_util_memblk *memblk;	/* memory block if TLB enabled */

	/* PCM data */

	struct snd_trident *trident;
	struct snd_pcm_substream *substream;
	struct snd_trident_voice *extra;	/* extra PCM voice (acts as interrupt generator) */
	unsigned int running: 1,
            capture: 1,
            spdif: 1,
            foldback: 1,
            isync: 1,
            isync2: 1,
            isync3: 1;
	int foldback_chan;		/* foldback subdevice number */
	unsigned int stimer;		/* global sample timer (to detect spurious interrupts) */
	unsigned int spurious_threshold; /* spurious threshold */
	unsigned int isync_mark;
	unsigned int isync_max;
	unsigned int isync_ESO;

	/* --- */

	void *private_data;
	void (*private_free)(struct snd_trident_voice *voice);
};

struct snd_4dwave {
	int seq_client;

	struct snd_trident_port seq_ports[4];
	struct snd_simple_ops simple_ops;
	struct snd_seq_kinstr_list *ilist;

	struct snd_trident_voice voices[64];	

	int ChanSynthCount;		/* number of allocated synth channels */
	int max_size;			/* maximum synth memory size in bytes */
	int current_size;		/* current allocated synth mem in bytes */
};

struct snd_trident_pcm_mixer {
	struct snd_trident_voice *voice;	/* active voice */
	unsigned short vol;		/* front volume */
	unsigned char pan;		/* pan control */
	unsigned char rvol;		/* rear volume */
	unsigned char cvol;		/* center volume */
	unsigned char pad;
};

struct snd_trident {
	int irq;

	unsigned int device;	/* device ID */

        unsigned char  bDMAStart;

	unsigned long port;
	unsigned long midi_port;

	unsigned int spurious_irq_count;
	unsigned int spurious_irq_max_delta;

        struct snd_trident_tlb tlb;	/* TLB entries for NX cards */

	unsigned char spdif_ctrl;
	unsigned char spdif_pcm_ctrl;
	unsigned int spdif_bits;
	unsigned int spdif_pcm_bits;
	struct snd_kcontrol *spdif_pcm_ctl;	/* S/PDIF settings */
	unsigned int ac97_ctrl;
        
        unsigned int ChanMap[2];	/* allocation map for hardware channels */
        
        int ChanPCM;			/* max number of PCM channels */
	int ChanPCMcnt;			/* actual number of PCM channels */

	unsigned int ac97_detect: 1;	/* 1 = AC97 in detection phase */
	unsigned int in_suspend: 1;	/* 1 during suspend/resume */

	struct snd_4dwave synth;	/* synth specific variables */

	spinlock_t event_lock;
	spinlock_t voice_alloc;

	struct snd_dma_device dma_dev;

	struct pci_dev *pci;
	struct snd_card *card;
	struct snd_pcm *pcm;		/* ADC/DAC PCM */
	struct snd_pcm *foldback;	/* Foldback PCM */
	struct snd_pcm *spdif;	/* SPDIF PCM */
	struct snd_rawmidi *rmidi;
	struct snd_seq_device *seq_dev;

	struct snd_ac97_bus *ac97_bus;
	struct snd_ac97 *ac97;
	struct snd_ac97 *ac97_sec;

	unsigned int musicvol_wavevol;
	struct snd_trident_pcm_mixer pcm_mixer[32];
	struct snd_kcontrol *ctl_vol;	/* front volume */
	struct snd_kcontrol *ctl_pan;	/* pan */
	struct snd_kcontrol *ctl_rvol;	/* rear volume */
	struct snd_kcontrol *ctl_cvol;	/* center volume */

	spinlock_t reg_lock;

	struct gameport *gameport;
};

int snd_trident_create(struct snd_card *card,
		       struct pci_dev *pci,
		       int pcm_streams,
		       int pcm_spdif_device,
		       int max_wavetable_size,
		       struct snd_trident ** rtrident);
int snd_trident_create_gameport(struct snd_trident *trident);

int snd_trident_pcm(struct snd_trident * trident, int device, struct snd_pcm **rpcm);
int snd_trident_foldback_pcm(struct snd_trident * trident, int device, struct snd_pcm **rpcm);
int snd_trident_spdif_pcm(struct snd_trident * trident, int device, struct snd_pcm **rpcm);
int snd_trident_attach_synthesizer(struct snd_trident * trident);
struct snd_trident_voice *snd_trident_alloc_voice(struct snd_trident * trident, int type,
					     int client, int port);
void snd_trident_free_voice(struct snd_trident * trident, struct snd_trident_voice *voice);
void snd_trident_start_voice(struct snd_trident * trident, unsigned int voice);
void snd_trident_stop_voice(struct snd_trident * trident, unsigned int voice);
void snd_trident_write_voice_regs(struct snd_trident * trident, struct snd_trident_voice *voice);
int snd_trident_suspend(struct pci_dev *pci, pm_message_t state);
int snd_trident_resume(struct pci_dev *pci);

/* TLB memory allocation */
struct snd_util_memblk *snd_trident_alloc_pages(struct snd_trident *trident,
						struct snd_pcm_substream *substream);
int snd_trident_free_pages(struct snd_trident *trident, struct snd_util_memblk *blk);
struct snd_util_memblk *snd_trident_synth_alloc(struct snd_trident *trident, unsigned int size);
int snd_trident_synth_free(struct snd_trident *trident, struct snd_util_memblk *blk);
int snd_trident_synth_copy_from_user(struct snd_trident *trident, struct snd_util_memblk *blk,
				     int offset, const char __user *data, int size);

#endif /* __SOUND_TRIDENT_H */