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      1 /*	$NetBSD: cd1400reg.h,v 1.6 2005/12/11 12:21:26 christos Exp $	*/
      2 
      3 /*-
      4  * cyclades cyclom-y serial driver
      5  *	Andrew Herbert <andrew (at) werple.apana.org.au>, 17 August 1993
      6  *
      7  * Copyright (c) 1993 Andrew Herbert.
      8  * All rights reserved.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. The name Andrew Herbert may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY ``AS IS'' AND ANY EXPRESS OR IMPLIED
     22  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     23  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
     24  * NO EVENT SHALL I BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     27  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
     28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
     29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  *
     32  *	Id: cd1400.h,v 1.1.4.1 1995/09/14 07:09:41 davidg Exp
     33  */
     34 
     35 /*
     36  * Definitions for Cirrus Logic CD1400 serial/parallel chips.
     37  */
     38 
     39 #define	CD1400_NO_OF_CHANNELS	4	/* 4 serial channels per chip */
     40 #define	CD1400_RX_FIFO_SIZE	12
     41 #define	CD1400_TX_FIFO_SIZE	12
     42 #define	CD1400_PAR_FIFO_SIZE	30
     43 
     44 /*
     45  * Global registers.
     46  */
     47 #define	CD1400_GFRCR		0x40	/* global firmware revision code */
     48 #define	CD1400_CAR		0x68	/* channel access */
     49 #define	CD1400_CAR_CHAN			(3<<0)	/* channel select */
     50 #define	CD1400_GCR		0x4B	/* global configuration */
     51 #define	CD1400_GCR_PARALLEL		(1<<7)	/* channel 0 is parallel */
     52 #define	CD1400_SVRR		0x67	/* service request */
     53 #define	CD1400_SVRR_MDMCH		(1<<2)
     54 #define	CD1400_SVRR_TXRDY		(1<<1)
     55 #define	CD1400_SVRR_RXRDY		(1<<0)
     56 #define	CD1400_RICR		0x44	/* receive interrupting channel */
     57 #define	CD1400_TICR		0x45	/* transmit interrupting channel */
     58 #define	CD1400_MICR		0x46	/* modem interrupting channel */
     59 #define	CD1400_RIR		0x6B	/* receive interrupt status */
     60 #define	CD1400_RIR_RDIREQ		(1<<7)	/* rx service required */
     61 #define	CD1400_RIR_RBUSY		(1<<6)	/* rx service in progress */
     62 #define	CD1400_RIR_CHAN			(3<<0)	/* channel select */
     63 #define	CD1400_TIR		0x6A	/* transmit interrupt status */
     64 #define	CD1400_TIR_RDIREQ		(1<<7)	/* tx service required */
     65 #define	CD1400_TIR_RBUSY		(1<<6)	/* tx service in progress */
     66 #define	CD1400_TIR_CHAN			(3<<0)	/* channel select */
     67 #define	CD1400_MIR		0x69	/* modem interrupt status */
     68 #define	CD1400_MIR_RDIREQ		(1<<7)	/* modem service required */
     69 #define	CD1400_MIR_RBUSY		(1<<6)	/* modem service in progress */
     70 #define	CD1400_MIR_CHAN			(3<<0)	/* channel select */
     71 #define	CD1400_PPR		0x7E	/* prescaler period */
     72 #define	CD1400_PPR_PRESCALER		512
     73 
     74 /*
     75  * Virtual registers.
     76  */
     77 #define	CD1400_RIVR		0x43	/* receive interrupt vector */
     78 #define	CD1400_RIVR_EXCEPTION		(1<<2)	/* receive exception bit */
     79 #define	CD1400_TIVR		0x42	/* transmit interrupt vector */
     80 #define	CD1400_MIVR		0x41	/* modem interrupt vector */
     81 #define	CD1400_TDR		0x63	/* transmit data */
     82 #define	CD1400_RDSR		0x62	/* receive data/status */
     83 #define	CD1400_RDSR_TIMEOUT		(1<<7)	/* rx timeout */
     84 #define	CD1400_RDSR_SPECIAL_SHIFT	4	/* rx special char shift */
     85 #define	CD1400_RDSR_SPECIAL		(7<<4)	/* rx special char */
     86 #define	CD1400_RDSR_BREAK		(1<<3)	/* rx break */
     87 #define	CD1400_RDSR_PE			(1<<2)	/* rx parity error */
     88 #define	CD1400_RDSR_FE			(1<<1)	/* rx framing error */
     89 #define	CD1400_RDSR_OE			(1<<0)	/* rx overrun error */
     90 #define	CD1400_MISR		0x4C	/* modem interrupt status */
     91 #define	CD1400_MISR_DSRd		(1<<7)	/* DSR delta */
     92 #define	CD1400_MISR_CTSd		(1<<6)	/* CTS delta */
     93 #define	CD1400_MISR_RId			(1<<5)	/* RI delta */
     94 #define	CD1400_MISR_CDd			(1<<4)	/* CD delta */
     95 #define	CD1400_EOSRR		0x60	/* end of service request */
     96 
     97 /*
     98  * Channel registers.
     99  */
    100 #define	CD1400_LIVR		0x18	/* local interrupt vector */
    101 #define	CD1400_CCR		0x05	/* channel control */
    102 #define	CD1400_CCR_CMDRESET		(1<<7)	/* enables following: */
    103 #define	CD1400_CCR_FTF				(1<<1)	/* flush tx fifo */
    104 #define	CD1400_CCR_FULLRESET			(1<<0)	/* full reset */
    105 #define	CD1400_CCR_CMDCORCHG		(1<<6)	/* enables following: */
    106 #define	CD1400_CCR_COR3				(1<<3)	/* COR3 changed */
    107 #define	CD1400_CCR_COR2				(1<<2)	/* COR2 changed */
    108 #define	CD1400_CCR_COR1				(1<<1)	/* COR1 changed */
    109 #define	CD1400_CCR_CMDSENDSC		(1<<5)	/* enables following: */
    110 #define	CD1400_CCR_SC				(7<<0)	/* special char 1-4 */
    111 #define	CD1400_CCR_CMDCHANCTL		(1<<4)	/* enables following: */
    112 #define	CD1400_CCR_XMTEN			(1<<3)	/* tx enable */
    113 #define	CD1400_CCR_XMTDIS			(1<<2)	/* tx disable */
    114 #define	CD1400_CCR_RCVEN			(1<<1)	/* rx enable */
    115 #define	CD1400_CCR_RCVDIS			(1<<0)	/* rx disable */
    116 #define	CD1400_SRER		0x06	/* service request enable */
    117 #define	CD1400_SRER_MDMCH		(1<<7)	/* modem change */
    118 #define	CD1400_SRER_RXDATA		(1<<4)	/* rx data */
    119 #define	CD1400_SRER_TXRDY		(1<<2)	/* tx fifo empty */
    120 #define	CD1400_SRER_TXMPTY		(1<<1)	/* tx shift reg empty */
    121 #define	CD1400_SRER_NNDT		(1<<0)	/* no new data */
    122 #define	CD1400_COR1		0x08	/* channel option 1 */
    123 #define	CD1400_COR1_PARODD		(1<<7)
    124 #define	CD1400_COR1_PARNORMAL		(2<<5)
    125 #define	CD1400_COR1_PARFORCE		(1<<5)	/* odd/even = force 1/0 */
    126 #define	CD1400_COR1_PARNONE		(0<<5)
    127 #define	CD1400_COR1_NOINPCK		(1<<4)
    128 #define	CD1400_COR1_STOP2		(2<<2)
    129 #define	CD1400_COR1_STOP15		(1<<2)	/* 1.5 stop bits */
    130 #define	CD1400_COR1_STOP1		(0<<2)
    131 #define	CD1400_COR1_CS8			(3<<0)
    132 #define	CD1400_COR1_CS7			(2<<0)
    133 #define	CD1400_COR1_CS6			(1<<0)
    134 #define	CD1400_COR1_CS5			(0<<0)
    135 #define	CD1400_COR2		0x09	/* channel option 2 */
    136 #define	CD1400_COR2_IXANY		(1<<7)	/* implied XON mode */
    137 #define	CD1400_COR2_IXOFF		(1<<6)	/* in-band tx flow control */
    138 #define	CD1400_COR2_ETC			(1<<5)	/* embedded tx command */
    139 #define	CD1400_COR2_LLM			(1<<4)	/* local loopback mode */
    140 #define	CD1400_COR2_RLM			(1<<3)	/* remote loopback mode */
    141 #define	CD1400_COR2_RTSAO		(1<<2)	/* RTS auto output */
    142 #define	CD1400_COR2_CCTS_OFLOW		(1<<1)	/* CTS auto enable */
    143 #define	CD1400_COR2_CDSR_OFLOW		(1<<0)	/* DSR auto enable */
    144 #define	CD1400_COR3		0x0A	/* channel option 3 */
    145 #define	CD1400_COR3_SCDRNG		(1<<7)	/* special char detect range */
    146 #define	CD1400_COR3_SCD34		(1<<6)	/* special char detect 3-4 */
    147 #define	CD1400_COR3_FTC			(1<<5)	/* flow control transparency */
    148 #define	CD1400_COR3_SCD12		(1<<4)	/* special char detect 1-2 */
    149 #define	CD1400_COR3_RXTH		(15<<0)	/* rx fifo threshold */
    150 #define	CD1400_COR4		0x1E	/* channel option 4 */
    151 #define	CD1400_COR4_IGNCR		(1<<7)
    152 #define	CD1400_COR4_ICRNL		(1<<6)
    153 #define	CD1400_COR4_INLCR		(1<<5)
    154 #define	CD1400_COR4_IGNBRK		(1<<4)
    155 #define	CD1400_COR4_NOBRKINT		(1<<3)
    156 #define	CD1400_COR4_PFO_ESC		(4<<0)	/* parity/framing/overrun... */
    157 #define	CD1400_COR4_PFO_NUL		(3<<0)
    158 #define	CD1400_COR4_PFO_DISCARD		(2<<0)
    159 #define	CD1400_COR4_PFO_GOOD		(1<<0)
    160 #define	CD1400_COR4_PFO_EXCEPTION	(0<<0)
    161 #define	CD1400_COR5		0x1F	/* channel option 5 */
    162 #define	CD1400_COR5_ISTRIP		(1<<7)
    163 #define	CD1400_COR5_LNEXT		(1<<6)
    164 #define	CD1400_COR5_CMOE		(1<<5)	/* char matching on error */
    165 #define	CD1400_COR5_EBD			(1<<2)	/* end of break detected */
    166 #define	CD1400_COR5_ONLCR		(1<<1)
    167 #define	CD1400_COR5_OCRNL		(1<<0)
    168 #define	CD1400_CCSR		0x0B	/* channel control status */
    169 #define	CD1400_RDCR		0x0E	/* received data count */
    170 #define	CD1400_SCHR1		0x1A	/* special character 1 */
    171 #define	CD1400_SCHR2		0x1B	/* special character 2 */
    172 #define	CD1400_SCHR3		0x1C	/* special character 3 */
    173 #define	CD1400_SCHR4		0x1D	/* special character 4 */
    174 #define	CD1400_SCRL		0x22	/* special character range, low */
    175 #define	CD1400_SCRH		0x23	/* special character range, high */
    176 #define	CD1400_LNC		0x24	/* lnext character */
    177 #define	CD1400_MCOR1		0x15	/* modem change option 1 */
    178 #define	CD1400_MCOR1_DSRzd		(1<<7)	/* DSR one-to-zero delta */
    179 #define	CD1400_MCOR1_CTSzd		(1<<6)
    180 #define	CD1400_MCOR1_RIzd		(1<<5)
    181 #define	CD1400_MCOR1_CDzd		(1<<4)
    182 #define	CD1400_MCOR1_DTRth		(15<<0)	/* dtrflow threshold */
    183 #define	CD1400_MCOR2		0x16	/* modem change option 2 */
    184 #define	CD1400_MCOR2_DSRod		(1<<7)	/* DSR zero-to-one delta */
    185 #define	CD1400_MCOR2_CTSod		(1<<6)
    186 #define	CD1400_MCOR2_RIod		(1<<5)
    187 #define	CD1400_MCOR2_CDod		(1<<4)
    188 #define	CD1400_RTPR		0x21	/* receive timeout period */
    189 #define	CD1400_MSVR1		0x6C	/* modem signal value 1 */
    190 #define	CD1400_MSVR1_RTS		(1<<0)	/* RTS line (r/w) */
    191 #define	CD1400_MSVR2		0x6D	/* modem signal value 2 */
    192 #define	CD1400_MSVR2_DSR		(1<<7)	/* !DSR line (r) */
    193 #define	CD1400_MSVR2_CTS		(1<<6)	/* !CTS line (r) */
    194 #define	CD1400_MSVR2_RI			(1<<5)	/* !RI line (r) */
    195 #define	CD1400_MSVR2_CD			(1<<4)	/* !CD line (r) */
    196 #define	CD1400_MSVR2_DTR		(1<<1)	/* DTR line (r/w) */
    197 #define	CD1400_PSVR		0x6F	/* printer signal value */
    198 #define	CD1400_RBPR		0x78	/* receive baud rate period */
    199 #define	CD1400_RCOR		0x7C	/* receive clock option */
    200 #define	CD1400_TBPR		0x72	/* transmit baud rate period */
    201 #define	CD1400_TCOR		0x76	/* transmit clock option */
    202