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#ifndef _INC_MUSYCC_H_
#define _INC_MUSYCC_H_

/*-----------------------------------------------------------------------------
 * musycc.h - Multichannel Synchronous Communications Controller
 *            CN8778/8474A/8472A/8471A
 *
 * Copyright (C) 2002-2005  SBE, Inc.
 *
 *   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.
 *
 * For further information, contact via email: support@sbei.com
 * SBE, Inc.  San Ramon, California  U.S.A.
 *-----------------------------------------------------------------------------
 */

#include <linux/types.h>

#define VINT8   volatile u_int8_t
#define VINT32  volatile u_int32_t

#include "pmcc4_defs.h"


/*------------------------------------------------------------------------
//      Vendor, Board Identification definitions
//------------------------------------------------------------------------
*/

#define PCI_VENDOR_ID_CONEXANT   0x14f1
#define PCI_DEVICE_ID_CN8471     0x8471
#define PCI_DEVICE_ID_CN8472     0x8472
#define PCI_DEVICE_ID_CN8474     0x8474
#define PCI_DEVICE_ID_CN8478     0x8478
#define PCI_DEVICE_ID_CN8500     0x8500
#define PCI_DEVICE_ID_CN8501     0x8501
#define PCI_DEVICE_ID_CN8502     0x8502
#define PCI_DEVICE_ID_CN8503     0x8503

#define INT_QUEUE_SIZE    MUSYCC_NIQD

/* RAM image of MUSYCC registers laid out as a C structure */
struct musycc_groupr {
	VINT32      thp[32];    /* Transmit Head Pointer [5-29]           */
	VINT32      tmp[32];    /* Transmit Message Pointer [5-30]        */
	VINT32      rhp[32];    /* Receive Head Pointer [5-29]            */
	VINT32      rmp[32];    /* Receive Message Pointer [5-30]         */
	VINT8       ttsm[128];  /* Time Slot Map [5-22]                   */
	VINT8       tscm[256];  /* Subchannel Map [5-24]                  */
	VINT32      tcct[32];   /* Channel Configuration [5-26]           */
	VINT8       rtsm[128];  /* Time Slot Map [5-22]                   */
	VINT8       rscm[256];  /* Subchannel Map [5-24]                  */
	VINT32      rcct[32];   /* Channel Configuration [5-26]           */
	VINT32      __glcd;     /* Global Configuration Descriptor [5-10] */
	VINT32      __iqp;      /* Interrupt Queue Pointer [5-36]         */
	VINT32      __iql;      /* Interrupt Queue Length [5-36]          */
	VINT32      grcd;       /* Group Configuration Descriptor [5-16]  */
	VINT32      mpd;        /* Memory Protection Descriptor [5-18]    */
	VINT32      mld;        /* Message Length Descriptor [5-20]       */
	VINT32      pcd;        /* Port Configuration Descriptor [5-19]   */
};

/* hardware MUSYCC registers laid out as a C structure */
struct musycc_globalr {
	VINT32      gbp;        /* Group Base Pointer                     */
	VINT32      dacbp;      /* Dual Address Cycle Base Pointer        */
	VINT32      srd;        /* Service Request Descriptor             */
	VINT32      isd;        /* Interrupt Service Descriptor           */
	/*
	 * adjust __thp due to above 4 registers, which are not contained
	 * within musycc_groupr[]. All __XXX[] are just place holders,
	 * anyhow.
	 */
	VINT32      __thp[32 - 4];      /* Transmit Head Pointer [5-29]           */
	VINT32      __tmp[32];  /* Transmit Message Pointer [5-30]        */
	VINT32      __rhp[32];  /* Receive Head Pointer [5-29]            */
	VINT32      __rmp[32];  /* Receive Message Pointer [5-30]         */
	VINT8       ttsm[128];  /* Time Slot Map [5-22]                   */
	VINT8       tscm[256];  /* Subchannel Map [5-24]                  */
	VINT32      tcct[32];   /* Channel Configuration [5-26]           */
	VINT8       rtsm[128];  /* Time Slot Map [5-22]                   */
	VINT8       rscm[256];  /* Subchannel Map [5-24]                  */
	VINT32      rcct[32];   /* Channel Configuration [5-26]           */
	VINT32      glcd;       /* Global Configuration Descriptor [5-10] */
	VINT32      iqp;        /* Interrupt Queue Pointer [5-36]         */
	VINT32      iql;        /* Interrupt Queue Length [5-36]          */
	VINT32      grcd;       /* Group Configuration Descriptor [5-16]  */
	VINT32      mpd;        /* Memory Protection Descriptor [5-18]    */
	VINT32      mld;        /* Message Length Descriptor [5-20]       */
	VINT32      pcd;        /* Port Configuration Descriptor [5-19]   */
	VINT32      rbist;      /* Receive BIST status [5-4]              */
	VINT32      tbist;      /* Receive BIST status [5-4]              */
};

/* Global Config Descriptor bit macros */
#define MUSYCC_GCD_ECLK_ENABLE  0x00000800      /* EBUS clock enable */
#define MUSYCC_GCD_INTEL_SELECT 0x00000400      /* MPU type select */
#define MUSYCC_GCD_INTA_DISABLE 0x00000008      /* PCI INTA disable */
#define MUSYCC_GCD_INTB_DISABLE 0x00000004      /* PCI INTB disable */
#define MUSYCC_GCD_BLAPSE       12      /* Position index for BLAPSE bit
					 * field */
#define MUSYCC_GCD_ALAPSE       8       /* Position index for ALAPSE bit
					 * field */
#define MUSYCC_GCD_ELAPSE       4       /* Position index for ELAPSE bit
					 * field */
#define MUSYCC_GCD_PORTMAP_3    3       /* Reserved */
#define MUSYCC_GCD_PORTMAP_2    2       /* Port 0=>Grp 0,1,2,3; Port 1=>Grp
					 * 4,5,6,7 */
#define MUSYCC_GCD_PORTMAP_1    1       /* Port 0=>Grp 0,1; Port 1=>Grp 2,3,
					 * etc... */
#define MUSYCC_GCD_PORTMAP_0    0       /* Port 0=>Grp 0; Port 1=>Grp 2,
					 * etc... */

/* and board specific assignments... */
#ifdef SBE_WAN256T3_ENABLE
#define BLAPSE_VAL      0
#define ALAPSE_VAL      0
#define ELAPSE_VAL      7
#define PORTMAP_VAL     MUSYCC_GCD_PORTMAP_2
#endif

#ifdef SBE_PMCC4_ENABLE
#define BLAPSE_VAL      7
#define ALAPSE_VAL      3
#define ELAPSE_VAL      7
#define PORTMAP_VAL     MUSYCC_GCD_PORTMAP_0
#endif

#define GCD_MAGIC   (((BLAPSE_VAL)<<(MUSYCC_GCD_BLAPSE)) | \
		     ((ALAPSE_VAL)<<(MUSYCC_GCD_ALAPSE)) | \
		     ((ELAPSE_VAL)<<(MUSYCC_GCD_ELAPSE)) | \
		     (MUSYCC_GCD_ECLK_ENABLE) | PORTMAP_VAL)

/* Group Config Descriptor bit macros */
#define MUSYCC_GRCD_RX_ENABLE       0x00000001  /* Enable receive processing */
#define MUSYCC_GRCD_TX_ENABLE       0x00000002  /* Enable transmit processing */
#define MUSYCC_GRCD_SUBCHAN_DISABLE 0x00000004  /* Master disable for
						 * subchanneling */
#define MUSYCC_GRCD_OOFMP_DISABLE   0x00000008  /* Out of Frame message
						 * processing disabled all
						 * channels */
#define MUSYCC_GRCD_OOFIRQ_DISABLE  0x00000010  /* Out of Frame/In Frame irqs
						 * disabled */
#define MUSYCC_GRCD_COFAIRQ_DISABLE 0x00000020  /* Change of Frame Alignment
						 * irq disabled */
#define MUSYCC_GRCD_INHRBSD         0x00000100  /* Receive Buffer Status
						 * overwrite disabled */
#define MUSYCC_GRCD_INHTBSD         0x00000200  /* Transmit Buffer Status
						 * overwrite disabled */
#define MUSYCC_GRCD_SF_ALIGN        0x00008000  /* External frame sync */
#define MUSYCC_GRCD_MC_ENABLE       0x00000040  /* Message configuration bits
						 * copy enable. Conexant sez
						 * turn this on */
#define MUSYCC_GRCD_POLLTH_16       0x00000001  /* Poll every 16th frame */
#define MUSYCC_GRCD_POLLTH_32       0x00000002  /* Poll every 32nd frame */
#define MUSYCC_GRCD_POLLTH_64       0x00000003  /* Poll every 64th frame */
#define MUSYCC_GRCD_POLLTH_SHIFT    10  /* Position index for poll throttle
					 * bit field */
#define MUSYCC_GRCD_SUERM_THRESH_SHIFT 16       /* Position index for SUERM
						 * count threshold */

/* Port Config Descriptor bit macros */
#define MUSYCC_PCD_E1X2_MODE       2    /* Port mode in bits 0-2. T1 and E1 */
#define MUSYCC_PCD_E1X4_MODE       3    /* are defined in cn847x.h */
#define MUSYCC_PCD_NX64_MODE       4
#define MUSYCC_PCD_TXDATA_RISING   0x00000010   /* Sample Tx data on TCLK
						 * rising edge */
#define MUSYCC_PCD_TXSYNC_RISING   0x00000020   /* Sample Tx frame sync on
						 * TCLK rising edge */
#define MUSYCC_PCD_RXDATA_RISING   0x00000040   /* Sample Rx data on RCLK
						 * rising edge */
#define MUSYCC_PCD_RXSYNC_RISING   0x00000080   /* Sample Rx frame sync on
						 * RCLK rising edge */
#define MUSYCC_PCD_ROOF_RISING     0x00000100   /* Sample Rx Out Of Frame
						 * signal on RCLK rising edge */
#define MUSYCC_PCD_TX_DRIVEN       0x00000200   /* No mapped timeslots causes
						 * logic 1 on output, else
						 * tristate */
#define MUSYCC_PCD_PORTMODE_MASK   0xfffffff8   /* For changing the port mode
						 * between E1 and T1 */

/* Time Slot Descriptor bit macros */
#define MUSYCC_TSD_MODE_64KBPS              4
#define MUSYCC_TSD_MODE_56KBPS              5
#define MUSYCC_TSD_SUBCHANNEL_WO_FIRST      6
#define MUSYCC_TSD_SUBCHANNEL_WITH_FIRST    7

/* Message Descriptor bit macros */
#define MUSYCC_MDT_BASE03_ADDR     0x00006000

/* Channel Config Descriptor bit macros */
#define MUSYCC_CCD_BUFIRQ_DISABLE  0x00000002   /* BUFF and ONR irqs disabled */
#define MUSYCC_CCD_EOMIRQ_DISABLE  0x00000004   /* EOM irq disabled */
#define MUSYCC_CCD_MSGIRQ_DISABLE  0x00000008   /* LNG, FCS, ALIGN, and ABT
						 * irqs disabled */
#define MUSYCC_CCD_IDLEIRQ_DISABLE 0x00000010   /* CHABT, CHIC, and SHT irqs
						 * disabled */
#define MUSYCC_CCD_FILTIRQ_DISABLE 0x00000020   /* SFILT irq disabled */
#define MUSYCC_CCD_SDECIRQ_DISABLE 0x00000040   /* SDEC irq disabled */
#define MUSYCC_CCD_SINCIRQ_DISABLE 0x00000080   /* SINC irq disabled */
#define MUSYCC_CCD_SUERIRQ_DISABLE 0x00000100   /* SUERR irq disabled */
#define MUSYCC_CCD_FCS_XFER        0x00000200   /* Propagate FCS along with
						 * received data */
#define MUSYCC_CCD_PROTO_SHIFT     12   /* Position index for protocol bit
					 * field */
#define MUSYCC_CCD_TRANS           0    /* Protocol mode in bits 12-14 */
#define MUSYCC_CCD_SS7             1
#define MUSYCC_CCD_HDLC_FCS16      2
#define MUSYCC_CCD_HDLC_FCS32      3
#define MUSYCC_CCD_EOPIRQ_DISABLE  0x00008000   /* EOP irq disabled */
#define MUSYCC_CCD_INVERT_DATA     0x00800000   /* Invert data */
#define MUSYCC_CCD_MAX_LENGTH      10   /* Position index for max length bit
					 * field */
#define MUSYCC_CCD_BUFFER_LENGTH   16   /* Position index for internal data
					 * buffer length */
#define MUSYCC_CCD_BUFFER_LOC      24   /* Position index for internal data
					 * buffer starting location */

/****************************************************************************
 * Interrupt Descriptor Information */

#define INT_EMPTY_ENTRY     0xfeedface
#define INT_EMPTY_ENTRY2    0xdeadface

/****************************************************************************
 * Interrupt Status Descriptor
 *
 * NOTE: One must first fetch the value of the interrupt status descriptor
 * into a local variable, then pass that value into the read macros. This
 * is required to avoid race conditions.
 ***/

#define INTRPTS_NEXTINT_M      0x7FFF0000
#define INTRPTS_NEXTINT_S      16
#define INTRPTS_NEXTINT(x)     ((x & INTRPTS_NEXTINT_M) >> INTRPTS_NEXTINT_S)

#define INTRPTS_INTFULL_M      0x00008000
#define INTRPTS_INTFULL_S      15
#define INTRPTS_INTFULL(x)     ((x & INTRPTS_INTFULL_M) >> INTRPTS_INTFULL_S)

#define INTRPTS_INTCNT_M       0x00007FFF
#define INTRPTS_INTCNT_S       0
#define INTRPTS_INTCNT(x)      ((x & INTRPTS_INTCNT_M) >> INTRPTS_INTCNT_S)


/****************************************************************************
 * Interrupt Descriptor
 ***/

#define INTRPT_DIR_M           0x80000000
#define INTRPT_DIR_S           31
#define INTRPT_DIR(x)          ((x & INTRPT_DIR_M) >> INTRPT_DIR_S)

#define INTRPT_GRP_M           0x60000000
#define INTRPT_GRP_MSB_M       0x00004000
#define INTRPT_GRP_S           29
#define INTRPT_GRP_MSB_S       12
#define INTRPT_GRP(x)          (((x & INTRPT_GRP_M) >> INTRPT_GRP_S) | \
			       ((x & INTRPT_GRP_MSB_M) >> INTRPT_GRP_MSB_S))

#define INTRPT_CH_M            0x1F000000
#define INTRPT_CH_S            24
#define INTRPT_CH(x)           ((x & INTRPT_CH_M) >> INTRPT_CH_S)

#define INTRPT_EVENT_M         0x00F00000
#define INTRPT_EVENT_S         20
#define INTRPT_EVENT(x)        ((x & INTRPT_EVENT_M) >> INTRPT_EVENT_S)

#define INTRPT_ERROR_M         0x000F0000
#define INTRPT_ERROR_S         16
#define INTRPT_ERROR(x)        ((x & INTRPT_ERROR_M) >> INTRPT_ERROR_S)

#define INTRPT_ILOST_M         0x00008000
#define INTRPT_ILOST_S         15
#define INTRPT_ILOST(x)        ((x & INTRPT_ILOST_M) >> INTRPT_ILOST_S)

#define INTRPT_PERR_M          0x00004000
#define INTRPT_PERR_S          14
#define INTRPT_PERR(x)         ((x & INTRPT_PERR_M) >> INTRPT_PERR_S)

#define INTRPT_BLEN_M          0x00003FFF
#define INTRPT_BLEN_S          0
#define INTRPT_BLEN(x)         ((x & INTRPT_BLEN_M) >> INTRPT_BLEN_S)


/* Buffer Descriptor bit macros */
#define OWNER_BIT       0x80000000      /* Set for MUSYCC owner on xmit, host
					 * owner on receive */
#define HOST_TX_OWNED   0x00000000      /* Host owns descriptor */
#define MUSYCC_TX_OWNED 0x80000000      /* MUSYCC owns descriptor */
#define HOST_RX_OWNED   0x80000000      /* Host owns descriptor */
#define MUSYCC_RX_OWNED 0x00000000      /* MUSYCC owns descriptor */

#define POLL_DISABLED   0x40000000      /* MUSYCC not allowed to poll buffer
					 * for ownership */
#define EOMIRQ_ENABLE   0x20000000      /* This buffer contains the end of
					 * the message */
#define EOBIRQ_ENABLE   0x10000000      /* EOB irq enabled */
#define PADFILL_ENABLE  0x01000000      /* Enable padfill */
#define REPEAT_BIT      0x00008000      /* Bit on for FISU descriptor */
#define LENGTH_MASK         0X3fff      /* This part of status descriptor is
					 * length */
#define IDLE_CODE               25      /* Position index for idle code (2
					 * bits) */
#define EXTRA_FLAGS             16      /* Position index for minimum flags
					 * between messages (8 bits) */
#define IDLE_CODE_MASK        0x03      /* Gets rid of garbage before the
					 * pattern is OR'd in */
#define EXTRA_FLAGS_MASK      0xff      /* Gets rid of garbage before the
					 * pattern is OR'd in */
#define PCI_PERMUTED_OWNER_BIT  0x00000080      /* For flipping the bit on
						 * the polled mode descriptor */

/* Service Request Descriptor bit macros */
#define SREQ  8                 /* Position index for service request bit
				 * field */
#define SR_NOOP                 (0<<(SREQ))     /* No Operation. Generates SACK */
#define SR_CHIP_RESET           (1<<(SREQ))     /* Soft chip reset */
#define SR_GROUP_RESET          (2<<(SREQ))     /* Group reset */
#define SR_GLOBAL_INIT          (4<<(SREQ))     /* Global init: read global
						 * config deswc and interrupt
						 * queue desc */
#define SR_GROUP_INIT           (5<<(SREQ))     /* Group init: read Timeslot
						 * and Subchannel maps,
						 * Channel Config, */
    /*
     * Group Config, Memory Protect, Message Length, and Port Config
     * Descriptors
     */
#define SR_CHANNEL_ACTIVATE     (8<<(SREQ))     /* Init channel, read Head
						 * Pointer, process first
						 * Message Descriptor */
#define SR_GCHANNEL_MASK        0x001F          /* channel portion (gchan) */
#define SR_CHANNEL_DEACTIVATE   (9<<(SREQ))     /* Stop channel processing */
#define SR_JUMP                 (10<<(SREQ))    /* a: Process new Message
						 * List */
#define SR_CHANNEL_CONFIG       (11<<(SREQ))    /* b: Read channel
						 * Configuration Descriptor */
#define SR_GLOBAL_CONFIG        (16<<(SREQ))    /* 10: Read Global
						 * Configuration Descriptor */
#define SR_INTERRUPT_Q          (17<<(SREQ))    /* 11: Read Interrupt Queue
						 * Descriptor */
#define SR_GROUP_CONFIG         (18<<(SREQ))    /* 12: Read Group
						 * Configuration Descriptor */
#define SR_MEMORY_PROTECT       (19<<(SREQ))    /* 13: Read Memory Protection
						 * Descriptor */
#define SR_MESSAGE_LENGTH       (20<<(SREQ))    /* 14: Read Message Length
						 * Descriptor */
#define SR_PORT_CONFIG          (21<<(SREQ))    /* 15: Read Port
						 * Configuration Descriptor */
#define SR_TIMESLOT_MAP         (24<<(SREQ))    /* 18: Read Timeslot Map */
#define SR_SUBCHANNEL_MAP       (25<<(SREQ))    /* 19: Read Subchannel Map */
#define SR_CHAN_CONFIG_TABLE    (26<<(SREQ))    /* 20: Read Channel
						 * Configuration Table for
						 * the group */
#define SR_TX_DIRECTION         0x00000020      /* Transmit direction bit.
						 * Bit off indicates receive
						 * direction */
#define SR_RX_DIRECTION         0x00000000

/* Interrupt Descriptor bit macros */
#define GROUP10                     29  /* Position index for the 2 LS group
					 * bits */
#define CHANNEL                     24  /* Position index for channel bits */
#define INT_IQD_TX          0x80000000
#define INT_IQD_GRP         0x60000000
#define INT_IQD_CHAN        0x1f000000
#define INT_IQD_EVENT       0x00f00000
#define INT_IQD_ERROR       0x000f0000
#define INT_IQD_ILOST       0x00008000
#define INT_IQD_PERR        0x00004000
#define INT_IQD_BLEN        0x00003fff

/* Interrupt Descriptor Events */
#define EVE_EVENT               20      /* Position index for event bits */
#define EVE_NONE                0       /* No event to report in this
					 * interrupt */
#define EVE_SACK                1       /* Service Request acknowledge */
#define EVE_EOB                 2       /* End of Buffer */
#define EVE_EOM                 3       /* End of Message */
#define EVE_EOP                 4       /* End of Padfill */
#define EVE_CHABT               5       /* Change to Abort Code */
#define EVE_CHIC                6       /* Change to Idle Code */
#define EVE_FREC                7       /* Frame Recovery */
#define EVE_SINC                8       /* MTP2 SUERM Increment */
#define EVE_SDEC                9       /* MTP2 SUERM Decrement */
#define EVE_SFILT               10      /* MTP2 SUERM Filtered Message */
/* Interrupt Descriptor Errors */
#define ERR_ERRORS              16      /* Position index for error bits */
#define ERR_BUF                 1       /* Buffer Error */
#define ERR_COFA                2       /* Change of Frame Alignment Error */
#define ERR_ONR                 3       /* Owner Bit Error */
#define ERR_PROT                4       /* Memory Protection Error */
#define ERR_OOF                 8       /* Out of Frame Error */
#define ERR_FCS                 9       /* FCS Error */
#define ERR_ALIGN               10      /* Octet Alignment Error */
#define ERR_ABT                 11      /* Abort Termination */
#define ERR_LNG                 12      /* Long Message Error */
#define ERR_SHT                 13      /* Short Message Error */
#define ERR_SUERR               14      /* SUERM threshold exceeded */
#define ERR_PERR                15      /* PCI Parity Error */
/* Other Stuff */
#define TRANSMIT_DIRECTION  0x80000000  /* Transmit direction bit. Bit off
					 * indicates receive direction */
#define ILOST               0x00008000  /* Interrupt Lost */
#define GROUPMSB            0x00004000  /* Group number MSB */
#define SACK_IMAGE          0x00100000  /* Used in IRQ for semaphore test */
#define INITIAL_STATUS      0x10000     /* IRQ status should be this after
					 * reset */

/*  This must be defined on an entire channel group (Port) basis */
#define SUERM_THRESHOLD     0x1f

#undef VINT32
#undef VINT8

#endif                          /*** _INC_MUSYCC_H_ ***/

/*** End-of-File ***/