1 /****************************************************************************
3 ******* CIRRUS.H *******
5 ****************************************************************************
11 * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
31 ----------------------------------------------------------------------------
33 ----------------------------------------------------------------------------
35 ***************************************************************************/
40 /* Bit fields for particular registers shared with driver */
42 /* COR1 - driver and RTA */
43 #define RIOC_COR1_ODD 0x80 /* Odd parity */
44 #define RIOC_COR1_EVEN 0x00 /* Even parity */
45 #define RIOC_COR1_NOP 0x00 /* No parity */
46 #define RIOC_COR1_FORCE 0x20 /* Force parity */
47 #define RIOC_COR1_NORMAL 0x40 /* With parity */
48 #define RIOC_COR1_1STOP 0x00 /* 1 stop bit */
49 #define RIOC_COR1_15STOP 0x04 /* 1.5 stop bits */
50 #define RIOC_COR1_2STOP 0x08 /* 2 stop bits */
51 #define RIOC_COR1_5BITS 0x00 /* 5 data bits */
52 #define RIOC_COR1_6BITS 0x01 /* 6 data bits */
53 #define RIOC_COR1_7BITS 0x02 /* 7 data bits */
54 #define RIOC_COR1_8BITS 0x03 /* 8 data bits */
56 #define RIOC_COR1_HOST 0xef /* Safe host bits */
59 #define RIOC_COR1_CINPCK 0x00 /* Check parity of received characters */
60 #define RIOC_COR1_CNINPCK 0x10 /* Don't check parity */
62 /* COR2 bits for both RTA and driver use */
63 #define RIOC_COR2_IXANY 0x80 /* IXANY - any character is XON */
64 #define RIOC_COR2_IXON 0x40 /* IXON - enable tx soft flowcontrol */
65 #define RIOC_COR2_RTSFLOW 0x02 /* Enable tx hardware flow control */
67 /* Additional driver bits */
68 #define RIOC_COR2_HUPCL 0x20 /* Hang up on close */
69 #define RIOC_COR2_CTSFLOW 0x04 /* Enable rx hardware flow control */
70 #define RIOC_COR2_IXOFF 0x01 /* Enable rx software flow control */
71 #define RIOC_COR2_DTRFLOW 0x08 /* Enable tx hardware flow control */
74 #define RIOC_COR2_ETC 0x20 /* Embedded transmit options */
75 #define RIOC_COR2_LOCAL 0x10 /* Local loopback mode */
76 #define RIOC_COR2_REMOTE 0x08 /* Remote loopback mode */
77 #define RIOC_COR2_HOST 0xc2 /* Safe host bits */
79 /* COR3 - RTA use only */
80 #define RIOC_COR3_SCDRNG 0x80 /* Enable special char detect for range */
81 #define RIOC_COR3_SCD34 0x40 /* Special character detect for SCHR's 3 + 4 */
82 #define RIOC_COR3_FCT 0x20 /* Flow control transparency */
83 #define RIOC_COR3_SCD12 0x10 /* Special character detect for SCHR's 1 + 2 */
84 #define RIOC_COR3_FIFO12 0x0c /* 12 chars for receive FIFO threshold */
85 #define RIOC_COR3_FIFO10 0x0a /* 10 chars for receive FIFO threshold */
86 #define RIOC_COR3_FIFO8 0x08 /* 8 chars for receive FIFO threshold */
87 #define RIOC_COR3_FIFO6 0x06 /* 6 chars for receive FIFO threshold */
89 #define RIOC_COR3_THRESHOLD RIOC_COR3_FIFO8 /* MUST BE LESS THAN MCOR_THRESHOLD */
91 #define RIOC_COR3_DEFAULT (RIOC_COR3_FCT | RIOC_COR3_THRESHOLD)
92 /* Default bits for COR3 */
94 /* COR4 driver and RTA use */
95 #define RIOC_COR4_IGNCR 0x80 /* Throw away CR's on input */
96 #define RIOC_COR4_ICRNL 0x40 /* Map CR -> NL on input */
97 #define RIOC_COR4_INLCR 0x20 /* Map NL -> CR on input */
98 #define RIOC_COR4_IGNBRK 0x10 /* Ignore Break */
99 #define RIOC_COR4_NBRKINT 0x08 /* No interrupt on break (-BRKINT) */
100 #define RIOC_COR4_RAISEMOD 0x01 /* Raise modem output lines on non-zero baud */
103 /* COR4 driver only */
104 #define RIOC_COR4_IGNPAR 0x04 /* IGNPAR (ignore characters with errors) */
105 #define RIOC_COR4_PARMRK 0x02 /* PARMRK */
107 #define RIOC_COR4_HOST 0xf8 /* Safe host bits */
110 #define RIOC_COR4_CIGNPAR 0x02 /* Thrown away bad characters */
111 #define RIOC_COR4_CPARMRK 0x04 /* PARMRK characters */
112 #define RIOC_COR4_CNPARMRK 0x03 /* Don't PARMRK */
114 /* COR5 driver and RTA use */
115 #define RIOC_COR5_ISTRIP 0x80 /* Strip input chars to 7 bits */
116 #define RIOC_COR5_LNE 0x40 /* Enable LNEXT processing */
117 #define RIOC_COR5_CMOE 0x20 /* Match good and errored characters */
118 #define RIOC_COR5_ONLCR 0x02 /* NL -> CR NL on output */
119 #define RIOC_COR5_OCRNL 0x01 /* CR -> NL on output */
122 ** Spare bits - these are not used in the CIRRUS registers, so we use
123 ** them to set various other features.
126 ** tstop and tbusy indication
128 #define RIOC_COR5_TSTATE_ON 0x08 /* Turn on monitoring of tbusy and tstop */
129 #define RIOC_COR5_TSTATE_OFF 0x04 /* Turn off monitoring of tbusy and tstop */
133 #define RIOC_COR5_TAB3 0x10 /* TAB3 mode */
135 #define RIOC_COR5_HOST 0xc3 /* Safe host bits */
138 #define RIOC_CCSR_TXFLOFF 0x04 /* Tx is xoffed */
141 /* NB. DTR / CD swapped from Cirrus spec as the pins are also reversed on the
142 RTA. This is because otherwise DCD would get lost on the 1 parallel / 3
145 #define RIOC_MSVR1_CD 0x80 /* CD (DSR on Cirrus) */
146 #define RIOC_MSVR1_RTS 0x40 /* RTS (CTS on Cirrus) */
147 #define RIOC_MSVR1_RI 0x20 /* RI */
148 #define RIOC_MSVR1_DTR 0x10 /* DTR (CD on Cirrus) */
149 #define RIOC_MSVR1_CTS 0x01 /* CTS output pin (RTS on Cirrus) */
150 /* Next two used to indicate state of tbusy and tstop to driver */
151 #define RIOC_MSVR1_TSTOP 0x08 /* Set if port flow controlled */
152 #define RIOC_MSVR1_TEMPTY 0x04 /* Set if port tx buffer empty */
154 #define RIOC_MSVR1_HOST 0xf3 /* The bits the host wants */
156 /* Defines for the subscripts of a CONFIG packet */
157 #define RIOC_CONFIG_COR1 1 /* Option register 1 */
158 #define RIOC_CONFIG_COR2 2 /* Option register 2 */
159 #define RIOC_CONFIG_COR4 3 /* Option register 4 */
160 #define RIOC_CONFIG_COR5 4 /* Option register 5 */
161 #define RIOC_CONFIG_TXXON 5 /* Tx XON character */
162 #define RIOC_CONFIG_TXXOFF 6 /* Tx XOFF character */
163 #define RIOC_CONFIG_RXXON 7 /* Rx XON character */
164 #define RIOC_CONFIG_RXXOFF 8 /* Rx XOFF character */
165 #define RIOC_CONFIG_LNEXT 9 /* LNEXT character */
166 #define RIOC_CONFIG_TXBAUD 10 /* Tx baud rate */
167 #define RIOC_CONFIG_RXBAUD 11 /* Rx baud rate */
169 #define RIOC_PRE_EMPTIVE 0x80 /* Pre-emptive bit in command field */
171 /* Packet types going from Host to remote - with the exception of OPEN, MOPEN,
172 CONFIG, SBREAK and MEMDUMP the remaining bytes of the data array will not
175 #define RIOC_OPEN 0x00 /* Open a port */
176 #define RIOC_CONFIG 0x01 /* Configure a port */
177 #define RIOC_MOPEN 0x02 /* Modem open (block for DCD) */
178 #define RIOC_CLOSE 0x03 /* Close a port */
179 #define RIOC_WFLUSH (0x04 | RIOC_PRE_EMPTIVE) /* Write flush */
180 #define RIOC_RFLUSH (0x05 | RIOC_PRE_EMPTIVE) /* Read flush */
181 #define RIOC_RESUME (0x06 | RIOC_PRE_EMPTIVE) /* Resume if xoffed */
182 #define RIOC_SBREAK 0x07 /* Start break */
183 #define RIOC_EBREAK 0x08 /* End break */
184 #define RIOC_SUSPEND (0x09 | RIOC_PRE_EMPTIVE) /* Susp op (behave as tho xoffed) */
185 #define RIOC_FCLOSE (0x0a | RIOC_PRE_EMPTIVE) /* Force close */
186 #define RIOC_XPRINT 0x0b /* Xprint packet */
187 #define RIOC_MBIS (0x0c | RIOC_PRE_EMPTIVE) /* Set modem lines */
188 #define RIOC_MBIC (0x0d | RIOC_PRE_EMPTIVE) /* Clear modem lines */
189 #define RIOC_MSET (0x0e | RIOC_PRE_EMPTIVE) /* Set modem lines */
190 #define RIOC_PCLOSE 0x0f /* Pseudo close - Leaves rx/tx enabled */
191 #define RIOC_MGET (0x10 | RIOC_PRE_EMPTIVE) /* Force update of modem status */
192 #define RIOC_MEMDUMP (0x11 | RIOC_PRE_EMPTIVE) /* Send back mem from addr supplied */
193 #define RIOC_READ_REGISTER (0x12 | RIOC_PRE_EMPTIVE) /* Read CD1400 register (debug) */
195 /* "Command" packets going from remote to host COMPLETE and MODEM_STATUS
196 use data[4] / data[3] to indicate current state and modem status respectively
199 #define RIOC_COMPLETE (0x20 | RIOC_PRE_EMPTIVE)
200 /* Command complete */
201 #define RIOC_BREAK_RECEIVED (0x21 | RIOC_PRE_EMPTIVE)
203 #define RIOC_MODEM_STATUS (0x22 | RIOC_PRE_EMPTIVE)
204 /* Change in modem status */
206 /* "Command" packet that could go either way - handshake wake-up */
207 #define RIOC_HANDSHAKE (0x23 | RIOC_PRE_EMPTIVE)
208 /* Wake-up to HOST / RTA */