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trident.h

#ifndef __SOUND_TRIDENT_H
#define __SOUND_TRIDENT_H

/*
 *  audio@tridentmicro.com
 *  Fri Feb 19 15:55:28 MST 1999
 *  Definitions for Trident 4DWave DX/NX chips
 *
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it 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 program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */

#include "pcm.h"
#include "mpu401.h"
#include "ac97_codec.h"
#include "seq_midi_emul.h"
#include "seq_device.h"
#include "util_mem.h"
//#include "ainstr_iw.h"
//#include "ainstr_gf1.h"
#include "ainstr_simple.h"

#ifndef PCI_VENDOR_ID_TRIDENT
#define PCI_VENDOR_ID_TRIDENT       0x1023
#endif
#ifndef PCI_DEVICE_ID_TRIDENT_4DWAVE_DX 
#define PCI_DEVICE_ID_TRIDENT_4DWAVE_DX   0x2000
#endif
#ifndef PCI_DEVICE_ID_TRIDENT_4DWAVE_NX 
#define PCI_DEVICE_ID_TRIDENT_4DWAVE_NX   0x2001
#endif

#ifndef PCI_VENDOR_ID_SI
#define PCI_VENDOR_ID_SI            0x1039
#endif
#ifndef PCI_DEVICE_ID_SI_7018
#define PCI_DEVICE_ID_SI_7018       0x7018
#endif

#define TRIDENT_DEVICE_ID_DX        ((PCI_VENDOR_ID_TRIDENT<<16)|PCI_DEVICE_ID_TRIDENT_4DWAVE_DX)
#define TRIDENT_DEVICE_ID_NX        ((PCI_VENDOR_ID_TRIDENT<<16)|PCI_DEVICE_ID_TRIDENT_4DWAVE_NX)
#define TRIDENT_DEVICE_ID_SI7018    ((PCI_VENDOR_ID_SI<<16)|PCI_DEVICE_ID_SI_7018)

#define SNDRV_SEQ_DEV_ID_TRIDENT                "trident-synth"

#define SNDRV_TRIDENT_VOICE_TYPE_PCM            0
#define SNDRV_TRIDENT_VOICE_TYPE_SYNTH          1
#define SNDRV_TRIDENT_VOICE_TYPE_MIDI           2

#define SNDRV_TRIDENT_VFLG_RUNNING        (1<<0)

/* TLB code constants */
#define SNDRV_TRIDENT_PAGE_SIZE                 4096
#define SNDRV_TRIDENT_PAGE_SHIFT                12
#define SNDRV_TRIDENT_PAGE_MASK                 ((1<<SNDRV_TRIDENT_PAGE_SHIFT)-1)
#define SNDRV_TRIDENT_MAX_PAGES                 4096

/*
 * Direct registers
 */

#define TRID_REG(trident, x) ((trident)->port + (x))

#define ID_4DWAVE_DX        0x2000
#define ID_4DWAVE_NX        0x2001

/* Bank definitions */

#define T4D_BANK_A      0
#define T4D_BANK_B      1
#define T4D_NUM_BANKS   2

/* Register definitions */

/* Global registers */

enum global_control_bits {
      CHANNEL_IDX = 0x0000003f,
      OVERRUN_IE  = 0x00000400,     /* interrupt enable: capture overrun */
      UNDERRUN_IE = 0x00000800,     /* interrupt enable: playback underrun */
      ENDLP_IE    = 0x00001000,     /* interrupt enable: end of buffer */
      MIDLP_IE    = 0x00002000,     /* interrupt enable: middle buffer */
      ETOG_IE           = 0x00004000,     /* interrupt enable: envelope toggling */
      EDROP_IE    = 0x00008000,     /* interrupt enable: envelope drop */
      BANK_B_EN   = 0x00010000,     /* SiS: enable bank B (64 channels) */
      PCMIN_B_MIX = 0x00020000,     /* SiS: PCM IN B mixing enable */
      I2S_OUT_ASSIGN    = 0x00040000,     /* SiS: I2S Out contains surround PCM */
      SPDIF_OUT_ASSIGN= 0x00080000, /* SiS: 0=S/PDIF L/R | 1=PCM Out FIFO */
      MAIN_OUT_ASSIGN = 0x00100000, /* SiS: 0=PCM Out FIFO | 1=MMC Out buffer */
};

enum miscint_bits {
      PB_UNDERRUN_IRQ = 0x00000001, REC_OVERRUN_IRQ = 0x00000002,
      SB_IRQ            = 0x00000004, MPU401_IRQ      = 0x00000008,
      OPL3_IRQ        = 0x00000010, ADDRESS_IRQ     = 0x00000020,
      ENVELOPE_IRQ    = 0x00000040, PB_UNDERRUN     = 0x00000100,
      REC_OVERRUN = 0x00000200, MIXER_UNDERFLOW = 0x00000400,
      MIXER_OVERFLOW  = 0x00000800, NX_SB_IRQ_DISABLE = 0x00001000,
        ST_TARGET_REACHED = 0x00008000,
      PB_24K_MODE     = 0x00010000, ST_IRQ_EN       = 0x00800000,
      ACGPIO_IRQ  = 0x01000000
};

/* T2 legacy dma control registers. */
#define LEGACY_DMAR0                0x00  // ADR0
#define LEGACY_DMAR4                0x04  // CNT0
#define LEGACY_DMAR6              0x06  // CNT0 - High bits
#define LEGACY_DMAR11               0x0b  // MOD 
#define LEGACY_DMAR15               0x0f  // MMR 

#define T4D_START_A                0x80
#define T4D_STOP_A                 0x84
#define T4D_DLY_A            0x88
#define T4D_SIGN_CSO_A             0x8c
#define T4D_CSPF_A                 0x90
#define T4D_CSPF_B                 0xbc
#define T4D_CEBC_A                 0x94
#define T4D_AINT_A                 0x98
#define T4D_AINTEN_A               0x9c
#define T4D_LFO_GC_CIR               0xa0
#define T4D_MUSICVOL_WAVEVOL         0xa8
#define T4D_SBDELTA_DELTA_R          0xac
#define T4D_MISCINT                  0xb0
#define T4D_START_B                  0xb4
#define T4D_STOP_B                   0xb8
#define T4D_SBBL_SBCL                0xc0
#define T4D_SBCTRL_SBE2R_SBDD        0xc4
#define T4D_STIMER                 0xc8
#define T4D_AINT_B                   0xd8
#define T4D_AINTEN_B                 0xdc
#define T4D_RCI                      0x70

/* MPU-401 UART */
#define T4D_MPU401_BASE             0x20
#define T4D_MPUR0                   0x20
#define T4D_MPUR1                   0x21
#define T4D_MPUR2                   0x22
#define T4D_MPUR3                   0x23

/* S/PDIF Registers */
#define NX_SPCTRL_SPCSO             0x24
#define NX_SPLBA                    0x28
#define NX_SPESO                    0x2c
#define NX_SPCSTATUS                0x64

/* Joystick */
#define GAMEPORT_GCR                0x30
#define GAMEPORT_MODE_ADC           0x80
#define GAMEPORT_LEGACY             0x31
#define GAMEPORT_AXES               0x34

/* NX Specific Registers */
#define NX_TLBC                     0x6c

/* Channel Registers */

#define CH_START            0xe0

#define CH_DX_CSO_ALPHA_FMS         0xe0
#define CH_DX_ESO_DELTA             0xe8
#define CH_DX_FMC_RVOL_CVOL         0xec

#define CH_NX_DELTA_CSO             0xe0
#define CH_NX_DELTA_ESO             0xe8
#define CH_NX_ALPHA_FMS_FMC_RVOL_CVOL 0xec

#define CH_LBA                      0xe4
#define CH_GVSEL_PAN_VOL_CTRL_EC    0xf0
#define CH_EBUF1                    0xf4
#define CH_EBUF2                    0xf8

/* AC-97 Registers */

#define DX_ACR0_AC97_W              0x40
#define DX_ACR1_AC97_R              0x44
#define DX_ACR2_AC97_COM_STAT       0x48

#define NX_ACR0_AC97_COM_STAT       0x40
#define NX_ACR1_AC97_W              0x44
#define NX_ACR2_AC97_R_PRIMARY      0x48
#define NX_ACR3_AC97_R_SECONDARY    0x4c

#define SI_AC97_WRITE             0x40
#define SI_AC97_READ              0x44
#define SI_SERIAL_INTF_CTRL       0x48
#define SI_AC97_GPIO              0x4c
#define SI_ASR0                   0x50
#define SI_SPDIF_CS               0x70
#define SI_GPIO                   0x7c

enum trident_nx_ac97_bits {
      /* ACR1-3 */
      NX_AC97_BUSY_WRITE      = 0x0800,
      NX_AC97_BUSY_READ = 0x0800,
      NX_AC97_BUSY_DATA       = 0x0400,
      NX_AC97_WRITE_SECONDARY = 0x0100,
      /* ACR0 */
      NX_AC97_SECONDARY_READY = 0x0040,
      NX_AC97_SECONDARY_RECORD = 0x0020,
      NX_AC97_SURROUND_OUTPUT = 0x0010,
      NX_AC97_PRIMARY_READY   = 0x0008,
      NX_AC97_PRIMARY_RECORD  = 0x0004,
      NX_AC97_PCM_OUTPUT      = 0x0002,
      NX_AC97_WARM_RESET      = 0x0001
};

enum trident_dx_ac97_bits {
      DX_AC97_BUSY_WRITE      = 0x8000,
      DX_AC97_BUSY_READ = 0x8000,
      DX_AC97_READY           = 0x0010,
      DX_AC97_RECORD          = 0x0008,
      DX_AC97_PLAYBACK  = 0x0002
};

enum sis7018_ac97_bits {
      SI_AC97_BUSY_WRITE =    0x00008000,
      SI_AC97_AUDIO_BUSY =    0x00004000,
      SI_AC97_MODEM_BUSY =    0x00002000,
      SI_AC97_BUSY_READ =     0x00008000,
      SI_AC97_SECONDARY =     0x00000080,
};

enum serial_intf_ctrl_bits {
      WARM_RESET  = 0x00000001,
      COLD_RESET  = 0x00000002,
      I2S_CLOCK   = 0x00000004,
      PCM_SEC_AC97      = 0x00000008,
      AC97_DBL_RATE     = 0x00000010,
      SPDIF_EN    = 0x00000020,
      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);
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);
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);

/* 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_copy_from_user(trident_t *trident, snd_util_memblk_t *blk, int offset, const char __user *data, int size);

#endif /* __SOUND_TRIDENT_H */

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