trident.h

Linux Kernel 2.6.9 for OMAP1710

	I2S_OUTPUT_EN	= 0x00000040,
	I2S_INPUT_EN	= 0x00000080,
	PCMIN		= 0x00000100,
	LINE1IN		= 0x00000200,
	MICIN		= 0x00000400,
	LINE2IN		= 0x00000800,
	HEAD_SET_IN	= 0x00001000,
	GPIOIN		= 0x00002000,
	/* 7018 spec says id = 01 but the demo board routed to 10
	   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 */

typedef struct _snd_trident trident_t;
typedef struct _snd_trident_voice snd_trident_voice_t;
typedef struct _snd_trident_pcm_mixer snd_trident_pcm_mixer_t;

typedef struct {
	void (*sample_start)(trident_t *gus, snd_trident_voice_t *voice, snd_seq_position_t position);
	void (*sample_stop)(trident_t *gus, snd_trident_voice_t *voice, snd_seq_stop_mode_t mode);
	void (*sample_freq)(trident_t *gus, snd_trident_voice_t *voice, snd_seq_frequency_t freq);
	void (*sample_volume)(trident_t *gus, snd_trident_voice_t *voice, snd_seq_ev_volume_t *volume);
	void (*sample_loop)(trident_t *card, snd_trident_voice_t *voice, snd_seq_ev_loop_t *loop);
	void (*sample_pos)(trident_t *card, snd_trident_voice_t *voice, snd_seq_position_t position);
	void (*sample_private1)(trident_t *card, snd_trident_voice_t *voice, unsigned char *data);
} snd_trident_sample_ops_t;

typedef struct {
	snd_midi_channel_set_t * chset;
	trident_t * trident;
	int mode;		/* operation mode */
	int client;		/* sequencer client number */
	int port;		/* sequencer port number */
	int midi_has_voices: 1;
} snd_trident_port_t;

typedef struct snd_trident_memblk_arg {
	short first_page, last_page;
} snd_trident_memblk_arg_t;

typedef struct {
	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;
	snd_util_memhdr_t * memhdr;	/* page allocation list */
	struct snd_dma_buffer silent_page;
} snd_trident_tlb_t;

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

	snd_seq_instr_t instr;
	snd_trident_sample_ops_t *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 */

	snd_util_memblk_t *memblk;	/* memory block if TLB enabled */

	/* PCM data */

	trident_t *trident;
	snd_pcm_substream_t *substream;
	snd_trident_voice_t *extra;	/* extra PCM voice (acts as interrupt generator) */
	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)(snd_trident_voice_t *voice);
};

struct _snd_4dwave {
	int seq_client;

	snd_trident_port_t seq_ports[4];
	snd_simple_ops_t simple_ops;
	snd_seq_kinstr_list_t *ilist;

	snd_trident_voice_t 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 {
	snd_trident_voice_t *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;

        snd_trident_tlb_t tlb;	/* TLB entries for NX cards */

	unsigned char spdif_ctrl;
	unsigned char spdif_pcm_ctrl;
	unsigned int spdif_bits;
	unsigned int spdif_pcm_bits;
	snd_kcontrol_t *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;
	snd_card_t *card;
	snd_pcm_t *pcm;		/* ADC/DAC PCM */
	snd_pcm_t *foldback;	/* Foldback PCM */
	snd_pcm_t *spdif;	/* SPDIF PCM */
	snd_rawmidi_t *rmidi;
	snd_seq_device_t *seq_dev;

	ac97_bus_t *ac97_bus;
	ac97_t *ac97;
	ac97_t *ac97_sec;

	unsigned int musicvol_wavevol;
	snd_trident_pcm_mixer_t pcm_mixer[32];
	snd_kcontrol_t *ctl_vol;	/* front volume */
	snd_kcontrol_t *ctl_pan;	/* pan */
	snd_kcontrol_t *ctl_rvol;	/* rear volume */
	snd_kcontrol_t *ctl_cvol;	/* center volume */

	spinlock_t reg_lock;

	struct snd_trident_gameport *gameport;
};

int snd_trident_create(snd_card_t * card,
		       struct pci_dev *pci,
		       int pcm_streams,
		       int pcm_spdif_device,
		       int max_wavetable_size,
		       trident_t ** rtrident);
int snd_trident_free(trident_t *trident);
void snd_trident_gameport(trident_t *trident);

int snd_trident_pcm(trident_t * trident, int device, snd_pcm_t **rpcm);
int snd_trident_foldback_pcm(trident_t * trident, int device, snd_pcm_t **rpcm);
int snd_trident_spdif_pcm(trident_t * trident, int device, snd_pcm_t **rpcm);
int snd_trident_attach_synthesizer(trident_t * trident);
int snd_trident_detach_synthesizer(trident_t * trident);
snd_trident_voice_t *snd_trident_alloc_voice(trident_t * trident, int type, int client, int port);
void snd_trident_free_voice(trident_t * trident, snd_trident_voice_t *voice);
void snd_trident_start_voice(trident_t * trident, unsigned int voice);
void snd_trident_stop_voice(trident_t * trident, unsigned int voice);
void snd_trident_write_voice_regs(trident_t * trident, snd_trident_voice_t *voice);
void snd_trident_clear_voices(trident_t * trident, unsigned short v_min, unsigned short v_max);

/* TLB memory allocation */
snd_util_memblk_t *snd_trident_alloc_pages(trident_t *trident, snd_pcm_substream_t *substream);
int snd_trident_free_pages(trident_t *trident, snd_util_memblk_t *blk);
snd_util_memblk_t *snd_trident_synth_alloc(trident_t *trident, unsigned int size);
int snd_trident_synth_free(trident_t *trident, snd_util_memblk_t *blk);
int snd_trident_synth_bzero(trident_t *trident, snd_util_memblk_t *blk, int offset, int size);
int snd_trident_synth_copy_from_user(trident_t *trident, snd_util_memblk_t *blk, int offset, const char __user *data, int size);

#endif /* __SOUND_TRIDENT_H */