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/*****************************************************************************/

/*

 *      cd1400.h  -- cd1400 UART hardware info.

 *

 *      Copyright (C) 1996-1998  Stallion Technologies (support@stallion.oz.au).

 *      Copyright (C) 1994-1996  Greg Ungerer.

 *

 *      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., 675 Mass Ave, Cambridge, MA 02139, USA.

 */

/*****************************************************************************/

#ifndef _CD1400_H

#define _CD1400_H

/*****************************************************************************/

/*

 *      Define the number of async ports per cd1400 uart chip.

 */

#define CD1400_PORTS            4

/*

 *      Define the cd1400 uarts internal FIFO sizes.

 */

#define CD1400_TXFIFOSIZE       12

#define CD1400_RXFIFOSIZE       12

/*

 *      Local RX FIFO thresh hold level. Also define the RTS thresh hold

 *      based on the RX thresh hold.

 */

#define FIFO_RXTHRESHOLD        6

#define FIFO_RTSTHRESHOLD       7

/*****************************************************************************/

/*

 *      Define the cd1400 register addresses. These are all the valid

 *      registers with the cd1400. Some are global, some virtual, some

 *      per port.

 */

#define GFRCR           0x40

#define CAR             0x68

#define GCR             0x4b

#define SVRR            0x67

#define RICR            0x44

#define TICR            0x45

#define MICR            0x46

#define RIR             0x6b

#define TIR             0x6a

#define MIR             0x69

#define PPR             0x7e

#define RIVR            0x43

#define TIVR            0x42

#define MIVR            0x41

#define TDR             0x63

#define RDSR            0x62

#define MISR            0x4c

#define EOSRR           0x60

#define LIVR            0x18

#define CCR             0x05

#define SRER            0x06

#define COR1            0x08

#define COR2            0x09

#define COR3            0x0a

#define COR4            0x1e

#define COR5            0x1f

#define CCSR            0x0b

#define RDCR            0x0e

#define SCHR1           0x1a

#define SCHR2           0x1b

#define SCHR3           0x1c

#define SCHR4           0x1d

#define SCRL            0x22

#define SCRH            0x23

#define LNC             0x24

#define MCOR1           0x15

#define MCOR2           0x16

#define RTPR            0x21

#define MSVR1           0x6c

#define MSVR2           0x6d

#define PSVR            0x6f

#define RBPR            0x78

#define RCOR            0x7c

#define TBPR            0x72

#define TCOR            0x76

/*****************************************************************************/

/*

 *      Define the set of baud rate clock divisors.

 */

#define CD1400_CLK0     8

#define CD1400_CLK1     32

#define CD1400_CLK2     128

#define CD1400_CLK3     512

#define CD1400_CLK4     2048

#define CD1400_NUMCLKS  5

/*****************************************************************************/

/*

 *      Define the clock pre-scalar value to be a 5 ms clock. This should be

 *      OK for now. It would probably be better to make it 10 ms, but we

 *      can't fit that divisor into 8 bits!

 */

#define PPR_SCALAR      244

/*****************************************************************************/

/*

 *      Define values used to set character size options.

 */

#define COR1_CHL5       0x00

#define COR1_CHL6       0x01

#define COR1_CHL7       0x02

#define COR1_CHL8       0x03

/*

 *      Define values used to set the number of stop bits.

 */

#define COR1_STOP1      0x00

#define COR1_STOP15     0x04

#define COR1_STOP2      0x08

/*

 *      Define values used to set the parity scheme in use.

 */

#define COR1_PARNONE    0x00

#define COR1_PARFORCE   0x20

#define COR1_PARENB     0x40

#define COR1_PARIGNORE  0x10

#define COR1_PARODD     0x80

#define COR1_PAREVEN    0x00

#define COR2_IXM        0x80

#define COR2_TXIBE      0x40

#define COR2_ETC        0x20

#define COR2_LLM        0x10

#define COR2_RLM        0x08

#define COR2_RTSAO      0x04

#define COR2_CTSAE      0x02

#define COR3_SCDRNG     0x80

#define COR3_SCD34      0x40

#define COR3_FCT        0x20

#define COR3_SCD12      0x10

/*

 *      Define values used by COR4.

 */

#define COR4_BRKINT     0x08

#define COR4_IGNBRK     0x18

/*****************************************************************************/

/*

 *      Define the modem control register values.

 *      Note that the actual hardware is a little different to the conventional

 *      pin names on the cd1400.

 */

#define MSVR1_DTR       0x01

#define MSVR1_DSR       0x10

#define MSVR1_RI        0x20

#define MSVR1_CTS       0x40

#define MSVR1_DCD       0x80

#define MSVR2_RTS       0x02

#define MSVR2_DSR       0x10

#define MSVR2_RI        0x20

#define MSVR2_CTS       0x40

#define MSVR2_DCD       0x80

#define MCOR1_DCD       0x80

#define MCOR1_CTS       0x40

#define MCOR1_RI        0x20

#define MCOR1_DSR       0x10

#define MCOR2_DCD       0x80

#define MCOR2_CTS       0x40

#define MCOR2_RI        0x20

#define MCOR2_DSR       0x10

/*****************************************************************************/

/*

 *      Define the bits used with the service (interrupt) enable register.

 */

#define SRER_NNDT       0x01

#define SRER_TXEMPTY    0x02

#define SRER_TXDATA     0x04

#define SRER_RXDATA     0x10

#define SRER_MODEM      0x80

/*****************************************************************************/

/*

 *      Define operational commands for the command register.

 */

#define CCR_RESET       0x80

#define CCR_CORCHANGE   0x4e

#define CCR_SENDCH      0x20

#define CCR_CHANCTRL    0x10

#define CCR_TXENABLE    (CCR_CHANCTRL | 0x08)

#define CCR_TXDISABLE   (CCR_CHANCTRL | 0x04)

#define CCR_RXENABLE    (CCR_CHANCTRL | 0x02)

#define CCR_RXDISABLE   (CCR_CHANCTRL | 0x01)

#define CCR_SENDSCHR1   (CCR_SENDCH | 0x01)

#define CCR_SENDSCHR2   (CCR_SENDCH | 0x02)

#define CCR_SENDSCHR3   (CCR_SENDCH | 0x03)

#define CCR_SENDSCHR4   (CCR_SENDCH | 0x04)

#define CCR_RESETCHAN   (CCR_RESET | 0x00)

#define CCR_RESETFULL   (CCR_RESET | 0x01)

#define CCR_TXFLUSHFIFO (CCR_RESET | 0x02)

#define CCR_MAXWAIT     10000

/*****************************************************************************/

/*

 *      Define the valid acknowledgement types (for hw ack cycle).

 */

#define ACK_TYPMASK     0x07

#define ACK_TYPTX       0x02

#define ACK_TYPMDM      0x01

#define ACK_TYPRXGOOD   0x03

#define ACK_TYPRXBAD    0x07

#define SVRR_RX         0x01

#define SVRR_TX         0x02

#define SVRR_MDM        0x04

#define ST_OVERRUN      0x01

#define ST_FRAMING      0x02

#define ST_PARITY       0x04

#define ST_BREAK        0x08

#define ST_SCHAR1       0x10

#define ST_SCHAR2       0x20

#define ST_SCHAR3       0x30

#define ST_SCHAR4       0x40

#define ST_RANGE        0x70

#define ST_SCHARMASK    0x70

#define ST_TIMEOUT      0x80

#define MISR_DCD        0x80

#define MISR_CTS        0x40

#define MISR_RI         0x20

#define MISR_DSR        0x10

/*****************************************************************************/

/*

 *      Defines for the CCSR status register.

 */

#define CCSR_RXENABLED  0x80

#define CCSR_RXFLOWON   0x40

#define CCSR_RXFLOWOFF  0x20

#define CCSR_TXENABLED  0x08

#define CCSR_TXFLOWON   0x04

#define CCSR_TXFLOWOFF  0x02

/*****************************************************************************/

/*

 *      Define the embedded commands.

 */

#define ETC_CMD         0x00

#define ETC_STARTBREAK  0x81

#define ETC_DELAY       0x82

#define ETC_STOPBREAK   0x83

/*****************************************************************************/

#endif