/* $Id: hfc_pci.h,v 1.1.4.1 2001/11/20 14:19:35 kai Exp $
 *
 * specific defines for CCD's HFC 2BDS0 PCI chips
 *
 * Author       Werner Cornelius
 * Copyright    by Werner Cornelius  <werner@isdn4linux.de>
 * 
 * This software may be used and distributed according to the terms
 * of the GNU General Public License, incorporated herein by reference.
 *
 */

/*********************************************/
/* thresholds for transparent B-channel mode */
/* change mask and threshold simultaneously  */
/*********************************************/
#define HFCPCI_BTRANS_THRESHOLD 128
#define HFCPCI_BTRANS_THRESMASK 0x00



/* defines for PCI config */

#define PCI_ENA_MEMIO    0x02
#define PCI_ENA_MASTER   0x04


/* GCI/IOM bus monitor registers */

#define HCFPCI_C_I       0x08
#define HFCPCI_TRxR      0x0C
#define HFCPCI_MON1_D    0x28
#define HFCPCI_MON2_D    0x2C


/* GCI/IOM bus timeslot registers */

#define HFCPCI_B1_SSL    0x80
#define HFCPCI_B2_SSL    0x84
#define HFCPCI_AUX1_SSL  0x88
#define HFCPCI_AUX2_SSL  0x8C
#define HFCPCI_B1_RSL    0x90
#define HFCPCI_B2_RSL    0x94
#define HFCPCI_AUX1_RSL  0x98
#define HFCPCI_AUX2_RSL  0x9C

/* GCI/IOM bus data registers */

#define HFCPCI_B1_D      0xA0
#define HFCPCI_B2_D      0xA4
#define HFCPCI_AUX1_D    0xA8
#define HFCPCI_AUX2_D    0xAC

/* GCI/IOM bus configuration registers */

#define HFCPCI_MST_EMOD  0xB4
#define HFCPCI_MST_MODE	 0xB8
#define HFCPCI_CONNECT 	 0xBC


/* Interrupt and status registers */

#define HFCPCI_FIFO_EN   0x44
#define HFCPCI_TRM       0x48
#define HFCPCI_B_MODE    0x4C
#define HFCPCI_CHIP_ID   0x58
#define HFCPCI_CIRM  	 0x60
#define HFCPCI_CTMT	 0x64
#define HFCPCI_INT_M1  	 0x68
#define HFCPCI_INT_M2  	 0x6C
#define HFCPCI_INT_S1  	 0x78
#define HFCPCI_INT_S2  	 0x7C
#define HFCPCI_STATUS  	 0x70

/* S/T section registers */

#define HFCPCI_STATES  	 0xC0
#define HFCPCI_SCTRL  	 0xC4
#define HFCPCI_SCTRL_E   0xC8
#define HFCPCI_SCTRL_R   0xCC
#define HFCPCI_SQ  	 0xD0
#define HFCPCI_CLKDEL  	 0xDC
#define HFCPCI_B1_REC    0xF0
#define HFCPCI_B1_SEND   0xF0
#define HFCPCI_B2_REC    0xF4
#define HFCPCI_B2_SEND   0xF4
#define HFCPCI_D_REC     0xF8
#define HFCPCI_D_SEND    0xF8
#define HFCPCI_E_REC     0xFC


/* bits in status register (READ) */
#define HFCPCI_PCI_PROC   0x02
#define HFCPCI_NBUSY	  0x04 
#define HFCPCI_TIMER_ELAP 0x10
#define HFCPCI_STATINT	  0x20
#define HFCPCI_FRAMEINT	  0x40
#define HFCPCI_ANYINT	  0x80

/* bits in CTMT (Write) */
#define HFCPCI_CLTIMER    0x80
#define HFCPCI_TIM3_125   0x04
#define HFCPCI_TIM25      0x10
#define HFCPCI_TIM50      0x14
#define HFCPCI_TIM400     0x18
#define HFCPCI_TIM800     0x1C
#define HFCPCI_AUTO_TIMER 0x20
#define HFCPCI_TRANSB2    0x02
#define HFCPCI_TRANSB1    0x01

/* bits in CIRM (Write) */
#define HFCPCI_AUX_MSK    0x07
#define HFCPCI_RESET  	  0x08
#define HFCPCI_B1_REV     0x40
#define HFCPCI_B2_REV     0x80

/* bits in INT_M1 and INT_S1 */
#define HFCPCI_INTS_B1TRANS  0x01
#define HFCPCI_INTS_B2TRANS  0x02
#define HFCPCI_INTS_DTRANS   0x04
#define HFCPCI_INTS_B1REC    0x08
#define HFCPCI_INTS_B2REC    0x10
#define HFCPCI_INTS_DREC     0x20
#define HFCPCI_INTS_L1STATE  0x40
#define HFCPCI_INTS_TIMER    0x80

/* bits in INT_M2 */
#define HFCPCI_PROC_TRANS    0x01
#define HFCPCI_GCI_I_CHG     0x02
#define HFCPCI_GCI_MON_REC   0x04
#define HFCPCI_IRQ_ENABLE    0x08
#define HFCPCI_PMESEL        0x80

/* bits in STATES */
#define HFCPCI_STATE_MSK     0x0F
#define HFCPCI_LOAD_STATE    0x10
#define HFCPCI_ACTIVATE	     0x20
#define HFCPCI_DO_ACTION     0x40
#define HFCPCI_NT_G2_G3      0x80

/* bits in HFCD_MST_MODE */
#define HFCPCI_MASTER	     0x01
#define HFCPCI_SLAVE         0x00
/* remaining bits are for codecs control */

/* bits in HFCD_SCTRL */
#define SCTRL_B1_ENA	     0x01
#define SCTRL_B2_ENA	     0x02
#define SCTRL_MODE_TE        0x00
#define SCTRL_MODE_NT        0x04
#define SCTRL_LOW_PRIO	     0x08
#define SCTRL_SQ_ENA	     0x10
#define SCTRL_TEST	     0x20
#define SCTRL_NONE_CAP	     0x40
#define SCTRL_PWR_DOWN	     0x80

/* bits in SCTRL_E  */
#define HFCPCI_AUTO_AWAKE    0x01
#define HFCPCI_DBIT_1        0x04
#define HFCPCI_IGNORE_COL    0x08
#define HFCPCI_CHG_B1_B2     0x80

/****************************/
/* bits in FIFO_EN register */
/****************************/
#define HFCPCI_FIFOEN_B1     0x03
#define HFCPCI_FIFOEN_B2     0x0C
#define HFCPCI_FIFOEN_DTX    0x10
#define HFCPCI_FIFOEN_B1TX   0x01
#define HFCPCI_FIFOEN_B1RX   0x02
#define HFCPCI_FIFOEN_B2TX   0x04
#define HFCPCI_FIFOEN_B2RX   0x08


/***********************************/
/* definitions of fifo memory area */
/***********************************/
#define MAX_D_FRAMES 15
#define MAX_B_FRAMES 31
#define B_SUB_VAL    0x200
#define B_FIFO_SIZE  (0x2000 - B_SUB_VAL)
#define D_FIFO_SIZE  512
#define D_FREG_MASK  0xF

typedef struct {
    unsigned short z1;  /* Z1 pointer 16 Bit */
    unsigned short z2;  /* Z2 pointer 16 Bit */
  } z_type;

typedef struct {
    u_char data[D_FIFO_SIZE]; /* FIFO data space */
    u_char fill1[0x20A0-D_FIFO_SIZE]; /* reserved, do not use */
    u_char f1,f2; /* f pointers */
    u_char fill2[0x20C0-0x20A2]; /* reserved, do not use */
    z_type za[MAX_D_FRAMES+1]; /* mask index with D_FREG_MASK for access */
    u_char fill3[0x4000-0x2100]; /* align 16K */  
  } dfifo_type;

typedef struct {
    z_type za[MAX_B_FRAMES+1]; /* only range 0x0..0x1F allowed */ 
    u_char f1,f2; /* f pointers */
    u_char fill[0x2100-0x2082]; /* alignment */
  } bzfifo_type;


typedef union {
    struct { 
      dfifo_type d_tx; /* D-send channel */
      dfifo_type d_rx; /* D-receive channel */
    } d_chan; 
    struct {
      u_char fill1[0x200];
      u_char txdat_b1[B_FIFO_SIZE];
      bzfifo_type txbz_b1;

      bzfifo_type txbz_b2;
      u_char txdat_b2[B_FIFO_SIZE];

      u_char fill2[D_FIFO_SIZE];

      u_char rxdat_b1[B_FIFO_SIZE];
      bzfifo_type rxbz_b1;

      bzfifo_type rxbz_b2;
      u_char rxdat_b2[B_FIFO_SIZE];
    } b_chans;  
    u_char fill[32768]; 
  } fifo_area;


#define Write_hfc(a,b,c) (*(((u_char *)a->hw.hfcpci.pci_io)+b) = c) 
#define Read_hfc(a,b) (*(((u_char *)a->hw.hfcpci.pci_io)+b))

extern void main_irq_hcpci(struct BCState *bcs);
extern void inithfcpci(struct IsdnCardState *cs);
extern void releasehfcpci(struct IsdnCardState *cs);
