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[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / drivers / net / wan / hd64572.h

/*
 * hd64572.h    Description of the Hitachi HD64572 (SCA-II), valid for 
 *              CPU modes 0 & 2.
 *
 * Author:      Ivan Passos <ivan@cyclades.com>
 *
 * Copyright:   (c) 2000-2001 Cyclades Corp.
 *
 *      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.
 *
 * $Log: hd64572.h,v $
 * Revision 3.1  2001/06/15 12:41:10  regina
 * upping major version number
 *
 * Revision 1.1.1.1  2001/06/13 20:24:49  daniela
 * PC300 initial CVS version (3.4.0-pre1)
 *
 * Revision 1.0 2000/01/25 ivan
 * Initial version.
 *
 */

#ifndef __HD64572_H
#define __HD64572_H

/* Illegal Access Register */
#define ILAR    0x00

/* Wait Controller Registers */
#define PABR0L  0x20    /* Physical Addr Boundary Register 0 L */
#define PABR0H  0x21    /* Physical Addr Boundary Register 0 H */
#define PABR1L  0x22    /* Physical Addr Boundary Register 1 L */
#define PABR1H  0x23    /* Physical Addr Boundary Register 1 H */
#define WCRL    0x24    /* Wait Control Register L */
#define WCRM    0x25    /* Wait Control Register M */
#define WCRH    0x26    /* Wait Control Register H */

/* Interrupt Registers */
#define IVR     0x60    /* Interrupt Vector Register */
#define IMVR    0x64    /* Interrupt Modified Vector Register */
#define ITCR    0x68    /* Interrupt Control Register */
#define ISR0    0x6c    /* Interrupt Status Register 0 */
#define ISR1    0x70    /* Interrupt Status Register 1 */
#define IER0    0x74    /* Interrupt Enable Register 0 */
#define IER1    0x78    /* Interrupt Enable Register 1 */

/* Register Access Macros (chan is 0 or 1 in _any_ case) */
#define M_REG(reg, chan)        (reg + 0x80*chan)               /* MSCI */
#define DRX_REG(reg, chan)      (reg + 0x40*chan)               /* DMA Rx */
#define DTX_REG(reg, chan)      (reg + 0x20*(2*chan + 1))       /* DMA Tx */
#define TRX_REG(reg, chan)      (reg + 0x20*chan)               /* Timer Rx */
#define TTX_REG(reg, chan)      (reg + 0x10*(2*chan + 1))       /* Timer Tx */
#define ST_REG(reg, chan)       (reg + 0x80*chan)               /* Status Cnt */
#define IR0_DRX(val, chan)      ((val)<<(8*(chan)))             /* Int DMA Rx */
#define IR0_DTX(val, chan)      ((val)<<(4*(2*chan + 1)))       /* Int DMA Tx */
#define IR0_M(val, chan)        ((val)<<(8*(chan)))             /* Int MSCI */

/* MSCI Channel Registers */
#define MSCI0_OFFSET 0x00
#define MSCI1_OFFSET 0x80

#define MD0     0x138   /* Mode reg 0 */
#define MD1     0x139   /* Mode reg 1 */
#define MD2     0x13a   /* Mode reg 2 */
#define MD3     0x13b   /* Mode reg 3 */
#define CTL     0x130   /* Control reg */
#define RXS     0x13c   /* RX clock source */
#define TXS     0x13d   /* TX clock source */
#define EXS     0x13e   /* External clock input selection */
#define TMCT    0x144   /* Time constant (Tx) */
#define TMCR    0x145   /* Time constant (Rx) */
#define CMD     0x128   /* Command reg */
#define ST0     0x118   /* Status reg 0 */
#define ST1     0x119   /* Status reg 1 */
#define ST2     0x11a   /* Status reg 2 */
#define ST3     0x11b   /* Status reg 3 */
#define ST4     0x11c   /* Status reg 4 */
#define FST     0x11d   /* frame Status reg  */
#define IE0     0x120   /* Interrupt enable reg 0 */
#define IE1     0x121   /* Interrupt enable reg 1 */
#define IE2     0x122   /* Interrupt enable reg 2 */
#define IE4     0x124   /* Interrupt enable reg 4 */
#define FIE     0x125   /* Frame Interrupt enable reg  */
#define SA0     0x140   /* Syn Address reg 0 */
#define SA1     0x141   /* Syn Address reg 1 */
#define IDL     0x142   /* Idle register */
#define TRBL    0x100   /* TX/RX buffer reg L */ 
#define TRBK    0x101   /* TX/RX buffer reg K */ 
#define TRBJ    0x102   /* TX/RX buffer reg J */ 
#define TRBH    0x103   /* TX/RX buffer reg H */ 
#define TRC0    0x148   /* TX Ready control reg 0 */ 
#define TRC1    0x149   /* TX Ready control reg 1 */ 
#define RRC     0x14a   /* RX Ready control reg */ 
#define CST0    0x108   /* Current Status Register 0 */ 
#define CST1    0x109   /* Current Status Register 1 */ 
#define CST2    0x10a   /* Current Status Register 2 */ 
#define CST3    0x10b   /* Current Status Register 3 */ 
#define GPO     0x131   /* General Purpose Output Pin Ctl Reg */
#define TFS     0x14b   /* Tx Start Threshold Ctl Reg */
#define TFN     0x143   /* Inter-transmit-frame Time Fill Ctl Reg */
#define TBN     0x110   /* Tx Buffer Number Reg */
#define RBN     0x111   /* Rx Buffer Number Reg */
#define TNR0    0x150   /* Tx DMA Request Ctl Reg 0 */
#define TNR1    0x151   /* Tx DMA Request Ctl Reg 1 */
#define TCR     0x152   /* Tx DMA Critical Request Reg */
#define RNR     0x154   /* Rx DMA Request Ctl Reg */
#define RCR     0x156   /* Rx DMA Critical Request Reg */

/* Timer Registers */
#define TIMER0RX_OFFSET 0x00
#define TIMER0TX_OFFSET 0x10
#define TIMER1RX_OFFSET 0x20
#define TIMER1TX_OFFSET 0x30

#define TCNTL   0x200   /* Timer Upcounter L */
#define TCNTH   0x201   /* Timer Upcounter H */
#define TCONRL  0x204   /* Timer Constant Register L */
#define TCONRH  0x205   /* Timer Constant Register H */
#define TCSR    0x206   /* Timer Control/Status Register */
#define TEPR    0x207   /* Timer Expand Prescale Register */

/* DMA registers */
#define PCR             0x40            /* DMA priority control reg */
#define DRR             0x44            /* DMA reset reg */
#define DMER            0x07            /* DMA Master Enable reg */
#define BTCR            0x08            /* Burst Tx Ctl Reg */
#define BOLR            0x0c            /* Back-off Length Reg */
#define DSR_RX(chan)    (0x48 + 2*chan) /* DMA Status Reg (Rx) */
#define DSR_TX(chan)    (0x49 + 2*chan) /* DMA Status Reg (Tx) */
#define DIR_RX(chan)    (0x4c + 2*chan) /* DMA Interrupt Enable Reg (Rx) */
#define DIR_TX(chan)    (0x4d + 2*chan) /* DMA Interrupt Enable Reg (Tx) */
#define FCT_RX(chan)    (0x50 + 2*chan) /* Frame End Interrupt Counter (Rx) */
#define FCT_TX(chan)    (0x51 + 2*chan) /* Frame End Interrupt Counter (Tx) */
#define DMR_RX(chan)    (0x54 + 2*chan) /* DMA Mode Reg (Rx) */
#define DMR_TX(chan)    (0x55 + 2*chan) /* DMA Mode Reg (Tx) */
#define DCR_RX(chan)    (0x58 + 2*chan) /* DMA Command Reg (Rx) */
#define DCR_TX(chan)    (0x59 + 2*chan) /* DMA Command Reg (Tx) */

/* DMA Channel Registers */
#define DMAC0RX_OFFSET 0x00
#define DMAC0TX_OFFSET 0x20
#define DMAC1RX_OFFSET 0x40
#define DMAC1TX_OFFSET 0x60

#define DARL    0x80    /* Dest Addr Register L (single-block, RX only) */
#define DARH    0x81    /* Dest Addr Register H (single-block, RX only) */
#define DARB    0x82    /* Dest Addr Register B (single-block, RX only) */
#define DARBH   0x83    /* Dest Addr Register BH (single-block, RX only) */
#define SARL    0x80    /* Source Addr Register L (single-block, TX only) */
#define SARH    0x81    /* Source Addr Register H (single-block, TX only) */
#define SARB    0x82    /* Source Addr Register B (single-block, TX only) */
#define DARBH   0x83    /* Source Addr Register BH (single-block, TX only) */
#define BARL    0x80    /* Buffer Addr Register L (chained-block) */
#define BARH    0x81    /* Buffer Addr Register H (chained-block) */
#define BARB    0x82    /* Buffer Addr Register B (chained-block) */
#define BARBH   0x83    /* Buffer Addr Register BH (chained-block) */
#define CDAL    0x84    /* Current Descriptor Addr Register L */
#define CDAH    0x85    /* Current Descriptor Addr Register H */
#define CDAB    0x86    /* Current Descriptor Addr Register B */
#define CDABH   0x87    /* Current Descriptor Addr Register BH */
#define EDAL    0x88    /* Error Descriptor Addr Register L */
#define EDAH    0x89    /* Error Descriptor Addr Register H */
#define EDAB    0x8a    /* Error Descriptor Addr Register B */
#define EDABH   0x8b    /* Error Descriptor Addr Register BH */
#define BFLL    0x90    /* RX Buffer Length L (only RX) */
#define BFLH    0x91    /* RX Buffer Length H (only RX) */
#define BCRL    0x8c    /* Byte Count Register L */
#define BCRH    0x8d    /* Byte Count Register H */

/* Block Descriptor Structure */
typedef struct {
        unsigned long   next;           /* pointer to next block descriptor */
        unsigned long   ptbuf;          /* buffer pointer */
        unsigned short  len;            /* data length */
        unsigned char   status;         /* status */
        unsigned char   filler[5];      /* alignment filler (16 bytes) */ 
} pcsca_bd_t;

/* Block Descriptor Structure */
typedef struct {
        u32 cp;                 /* pointer to next block descriptor */
        u32 bp;                 /* buffer pointer */
        u16 len;                /* data length */
        u8 stat;                /* status */
        u8 unused;              /* pads to 4-byte boundary */
}pkt_desc;


/*
        Descriptor Status definitions:

        Bit     Transmission    Reception

        7       EOM             EOM
        6       -               Short Frame
        5       -               Abort
        4       -               Residual bit
        3       Underrun        Overrun 
        2       -               CRC
        1       Ownership       Ownership
        0       EOT             -
*/
#define DST_EOT         0x01    /* End of transmit command */
#define DST_OSB         0x02    /* Ownership bit */
#define DST_CRC         0x04    /* CRC Error */
#define DST_OVR         0x08    /* Overrun */
#define DST_UDR         0x08    /* Underrun */
#define DST_RBIT        0x10    /* Residual bit */
#define DST_ABT         0x20    /* Abort */
#define DST_SHRT        0x40    /* Short Frame  */
#define DST_EOM         0x80    /* End of Message  */

/* Packet Descriptor Status bits */

#define ST_TX_EOM     0x80      /* End of frame */
#define ST_TX_UNDRRUN 0x08
#define ST_TX_OWNRSHP 0x02
#define ST_TX_EOT     0x01      /* End of transmition */

#define ST_RX_EOM     0x80      /* End of frame */
#define ST_RX_SHORT   0x40      /* Short frame */
#define ST_RX_ABORT   0x20      /* Abort */
#define ST_RX_RESBIT  0x10      /* Residual bit */
#define ST_RX_OVERRUN 0x08      /* Overrun */
#define ST_RX_CRC     0x04      /* CRC */
#define ST_RX_OWNRSHP 0x02

#define ST_ERROR_MASK 0x7C

/* Status Counter Registers */
#define CMCR    0x158   /* Counter Master Ctl Reg */
#define TECNTL  0x160   /* Tx EOM Counter L */
#define TECNTM  0x161   /* Tx EOM Counter M */
#define TECNTH  0x162   /* Tx EOM Counter H */
#define TECCR   0x163   /* Tx EOM Counter Ctl Reg */
#define URCNTL  0x164   /* Underrun Counter L */
#define URCNTH  0x165   /* Underrun Counter H */
#define URCCR   0x167   /* Underrun Counter Ctl Reg */
#define RECNTL  0x168   /* Rx EOM Counter L */
#define RECNTM  0x169   /* Rx EOM Counter M */
#define RECNTH  0x16a   /* Rx EOM Counter H */
#define RECCR   0x16b   /* Rx EOM Counter Ctl Reg */
#define ORCNTL  0x16c   /* Overrun Counter L */
#define ORCNTH  0x16d   /* Overrun Counter H */
#define ORCCR   0x16f   /* Overrun Counter Ctl Reg */
#define CECNTL  0x170   /* CRC Counter L */
#define CECNTH  0x171   /* CRC Counter H */
#define CECCR   0x173   /* CRC Counter Ctl Reg */
#define ABCNTL  0x174   /* Abort frame Counter L */
#define ABCNTH  0x175   /* Abort frame Counter H */
#define ABCCR   0x177   /* Abort frame Counter Ctl Reg */
#define SHCNTL  0x178   /* Short frame Counter L */
#define SHCNTH  0x179   /* Short frame Counter H */
#define SHCCR   0x17b   /* Short frame Counter Ctl Reg */
#define RSCNTL  0x17c   /* Residual bit Counter L */
#define RSCNTH  0x17d   /* Residual bit Counter H */
#define RSCCR   0x17f   /* Residual bit Counter Ctl Reg */

/* Register Programming Constants */

#define IR0_DMIC        0x00000001
#define IR0_DMIB        0x00000002
#define IR0_DMIA        0x00000004
#define IR0_EFT         0x00000008
#define IR0_DMAREQ      0x00010000
#define IR0_TXINT       0x00020000
#define IR0_RXINTB      0x00040000
#define IR0_RXINTA      0x00080000
#define IR0_TXRDY       0x00100000
#define IR0_RXRDY       0x00200000

#define MD0_CRC16_0     0x00
#define MD0_CRC16_1     0x01
#define MD0_CRC32       0x02
#define MD0_CRC_CCITT   0x03
#define MD0_CRCC0       0x04
#define MD0_CRCC1       0x08
#define MD0_AUTO_ENA    0x10
#define MD0_ASYNC       0x00
#define MD0_BY_MSYNC    0x20
#define MD0_BY_BISYNC   0x40
#define MD0_BY_EXT      0x60
#define MD0_BIT_SYNC    0x80
#define MD0_TRANSP      0xc0

#define MD0_HDLC        0x80    /* Bit-sync HDLC mode */

#define MD0_CRC_NONE    0x00
#define MD0_CRC_16_0    0x04
#define MD0_CRC_16      0x05
#define MD0_CRC_ITU32   0x06
#define MD0_CRC_ITU     0x07

#define MD1_NOADDR      0x00
#define MD1_SADDR1      0x40
#define MD1_SADDR2      0x80
#define MD1_DADDR       0xc0

#define MD2_NRZI_IEEE   0x40
#define MD2_MANCHESTER  0x80
#define MD2_FM_MARK     0xA0
#define MD2_FM_SPACE    0xC0
#define MD2_LOOPBACK    0x03    /* Local data Loopback */

#define MD2_F_DUPLEX    0x00
#define MD2_AUTO_ECHO   0x01
#define MD2_LOOP_HI_Z   0x02
#define MD2_LOOP_MIR    0x03
#define MD2_ADPLL_X8    0x00
#define MD2_ADPLL_X16   0x08
#define MD2_ADPLL_X32   0x10
#define MD2_NRZ         0x00
#define MD2_NRZI        0x20
#define MD2_NRZ_IEEE    0x40
#define MD2_MANCH       0x00
#define MD2_FM1         0x20
#define MD2_FM0         0x40
#define MD2_FM          0x80

#define CTL_RTS         0x01
#define CTL_DTR         0x02
#define CTL_SYN         0x04
#define CTL_IDLC        0x10
#define CTL_UDRNC       0x20
#define CTL_URSKP       0x40
#define CTL_URCT        0x80

#define CTL_NORTS       0x01
#define CTL_NODTR       0x02
#define CTL_IDLE        0x10

#define RXS_BR0         0x01
#define RXS_BR1         0x02
#define RXS_BR2         0x04
#define RXS_BR3         0x08
#define RXS_ECLK        0x00
#define RXS_ECLK_NS     0x20
#define RXS_IBRG        0x40
#define RXS_PLL1        0x50
#define RXS_PLL2        0x60
#define RXS_PLL3        0x70
#define RXS_DRTXC       0x80

#define TXS_BR0         0x01
#define TXS_BR1         0x02
#define TXS_BR2         0x04
#define TXS_BR3         0x08
#define TXS_ECLK        0x00
#define TXS_IBRG        0x40
#define TXS_RCLK        0x60
#define TXS_DTRXC       0x80

#define EXS_RES0        0x01
#define EXS_RES1        0x02
#define EXS_RES2        0x04
#define EXS_TES0        0x10
#define EXS_TES1        0x20
#define EXS_TES2        0x40

#define CLK_BRG_MASK    0x0F
#define CLK_PIN_OUT     0x80
#define CLK_LINE        0x00    /* clock line input */
#define CLK_BRG         0x40    /* internal baud rate generator */
#define CLK_TX_RXCLK    0x60    /* TX clock from RX clock */

#define CMD_RX_RST      0x11
#define CMD_RX_ENA      0x12
#define CMD_RX_DIS      0x13
#define CMD_RX_CRC_INIT 0x14
#define CMD_RX_MSG_REJ  0x15
#define CMD_RX_MP_SRCH  0x16
#define CMD_RX_CRC_EXC  0x17
#define CMD_RX_CRC_FRC  0x18
#define CMD_TX_RST      0x01
#define CMD_TX_ENA      0x02
#define CMD_TX_DISA     0x03
#define CMD_TX_CRC_INIT 0x04
#define CMD_TX_CRC_EXC  0x05
#define CMD_TX_EOM      0x06
#define CMD_TX_ABORT    0x07
#define CMD_TX_MP_ON    0x08
#define CMD_TX_BUF_CLR  0x09
#define CMD_TX_DISB     0x0b
#define CMD_CH_RST      0x21
#define CMD_SRCH_MODE   0x31
#define CMD_NOP         0x00

#define CMD_RESET       0x21
#define CMD_TX_ENABLE   0x02
#define CMD_RX_ENABLE   0x12

#define ST0_RXRDY       0x01
#define ST0_TXRDY       0x02
#define ST0_RXINTB      0x20
#define ST0_RXINTA      0x40
#define ST0_TXINT       0x80

#define ST1_IDLE        0x01
#define ST1_ABORT       0x02
#define ST1_CDCD        0x04
#define ST1_CCTS        0x08
#define ST1_SYN_FLAG    0x10
#define ST1_CLMD        0x20
#define ST1_TXIDLE      0x40
#define ST1_UDRN        0x80

#define ST2_CRCE        0x04
#define ST2_ONRN        0x08
#define ST2_RBIT        0x10
#define ST2_ABORT       0x20
#define ST2_SHORT       0x40
#define ST2_EOM         0x80

#define ST3_RX_ENA      0x01
#define ST3_TX_ENA      0x02
#define ST3_DCD         0x04
#define ST3_CTS         0x08
#define ST3_SRCH_MODE   0x10
#define ST3_SLOOP       0x20
#define ST3_GPI         0x80

#define ST4_RDNR        0x01
#define ST4_RDCR        0x02
#define ST4_TDNR        0x04
#define ST4_TDCR        0x08
#define ST4_OCLM        0x20
#define ST4_CFT         0x40
#define ST4_CGPI        0x80

#define FST_CRCEF       0x04
#define FST_OVRNF       0x08
#define FST_RBIF        0x10
#define FST_ABTF        0x20
#define FST_SHRTF       0x40
#define FST_EOMF        0x80

#define IE0_RXRDY       0x01
#define IE0_TXRDY       0x02
#define IE0_RXINTB      0x20
#define IE0_RXINTA      0x40
#define IE0_TXINT       0x80
#define IE0_UDRN        0x00008000 /* TX underrun MSCI interrupt enable */
#define IE0_CDCD        0x00000400 /* CD level change interrupt enable */

#define IE1_IDLD        0x01
#define IE1_ABTD        0x02
#define IE1_CDCD        0x04
#define IE1_CCTS        0x08
#define IE1_SYNCD       0x10
#define IE1_CLMD        0x20
#define IE1_IDL         0x40
#define IE1_UDRN        0x80

#define IE2_CRCE        0x04
#define IE2_OVRN        0x08
#define IE2_RBIT        0x10
#define IE2_ABT         0x20
#define IE2_SHRT        0x40
#define IE2_EOM         0x80

#define IE4_RDNR        0x01
#define IE4_RDCR        0x02
#define IE4_TDNR        0x04
#define IE4_TDCR        0x08
#define IE4_OCLM        0x20
#define IE4_CFT         0x40
#define IE4_CGPI        0x80

#define FIE_CRCEF       0x04
#define FIE_OVRNF       0x08
#define FIE_RBIF        0x10
#define FIE_ABTF        0x20
#define FIE_SHRTF       0x40
#define FIE_EOMF        0x80

#define DSR_DWE         0x01
#define DSR_DE          0x02
#define DSR_REF         0x04
#define DSR_UDRF        0x04
#define DSR_COA         0x08
#define DSR_COF         0x10
#define DSR_BOF         0x20
#define DSR_EOM         0x40
#define DSR_EOT         0x80

#define DIR_REF         0x04
#define DIR_UDRF        0x04
#define DIR_COA         0x08
#define DIR_COF         0x10
#define DIR_BOF         0x20
#define DIR_EOM         0x40
#define DIR_EOT         0x80

#define DIR_REFE        0x04
#define DIR_UDRFE       0x04
#define DIR_COAE        0x08
#define DIR_COFE        0x10
#define DIR_BOFE        0x20
#define DIR_EOME        0x40
#define DIR_EOTE        0x80

#define DMR_CNTE        0x02
#define DMR_NF          0x04
#define DMR_SEOME       0x08
#define DMR_TMOD        0x10

#define DMER_DME        0x80    /* DMA Master Enable */

#define DCR_SW_ABT      0x01
#define DCR_FCT_CLR     0x02

#define DCR_ABORT       0x01
#define DCR_CLEAR_EOF   0x02

#define PCR_COTE        0x80
#define PCR_PR0         0x01
#define PCR_PR1         0x02
#define PCR_PR2         0x04
#define PCR_CCC         0x08
#define PCR_BRC         0x10
#define PCR_OSB         0x40
#define PCR_BURST       0x80

#endif /* (__HD64572_H) */