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Diffstat (limited to 'sys/arch/sgi/hpc/z8530sc.h')
| -rw-r--r-- | sys/arch/sgi/hpc/z8530sc.h | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/sys/arch/sgi/hpc/z8530sc.h b/sys/arch/sgi/hpc/z8530sc.h new file mode 100644 index 00000000000..d4b707ad518 --- /dev/null +++ b/sys/arch/sgi/hpc/z8530sc.h @@ -0,0 +1,199 @@ +/* $OpenBSD: z8530sc.h,v 1.1 2012/03/28 20:44:23 miod Exp $ */ +/* $NetBSD: z8530sc.h,v 1.26 2009/05/22 03:51:30 mrg Exp $ */ + +/* + * Copyright (c) 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * This software was developed by the Computer Systems Engineering group + * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and + * contributed to Berkeley. + * + * All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Lawrence Berkeley Laboratory. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)zsvar.h 8.1 (Berkeley) 6/11/93 + */ + +/* + * Copyright (c) 1994 Gordon W. Ross + * + * This software was developed by the Computer Systems Engineering group + * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and + * contributed to Berkeley. + * + * All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Lawrence Berkeley Laboratory. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)zsvar.h 8.1 (Berkeley) 6/11/93 + */ + +/* + * Function vector - per channel + */ +struct zs_chanstate; +struct zsops { + void (*zsop_rxint)(struct zs_chanstate *); + /* receive char available */ + void (*zsop_stint)(struct zs_chanstate *, int); + /* external/status */ + void (*zsop_txint)(struct zs_chanstate *); + /* xmit buffer empty */ + void (*zsop_softint)(struct zs_chanstate *); + /* process software interrupt */ +}; + +extern struct zsops zsops_null; + + +/* + * Software state, per zs channel. + */ +struct zs_chanstate { + + /* Pointers to the device registers. */ + volatile uint8_t *cs_reg_csr; /* ctrl, status, and reg. number. */ + volatile uint8_t *cs_reg_data; /* data or numbered register */ + + int cs_channel; /* sub-unit number */ + void *cs_private; /* sub-driver data pointer */ + struct zsops *cs_ops; + + int cs_brg_clk; /* BAUD Rate Generator clock + * (usually PCLK / 16) */ + int cs_defspeed; /* default baud rate */ + int cs_defcflag; /* default cflag */ + + /* + * We must keep a copy of the write registers as they are + * mostly write-only and we sometimes need to set and clear + * individual bits (e.g., in WR3). Not all of these are + * needed but 16 bytes is cheap and this makes the addressing + * simpler. Unfortunately, we can only write to some registers + * when the chip is not actually transmitting, so whenever + * we are expecting a `transmit done' interrupt the preg array + * is allowed to `get ahead' of the current values. In a + * few places we must change the current value of a register, + * rather than (or in addition to) the pending value; for these + * cs_creg[] contains the current value. + */ + uint8_t cs_creg[16]; /* current values */ + uint8_t cs_preg[16]; /* pending values */ + int cs_heldchange; /* change pending (creg != preg) */ + + uint8_t cs_rr0; /* last rr0 processed */ + uint8_t cs_rr0_delta; /* rr0 changes at status intr. */ + uint8_t cs_rr0_mask; /* rr0 bits that stop output */ + uint8_t cs_rr0_dcd; /* which bit to read as DCD */ + uint8_t cs_rr0_cts; /* which bit to read as CTS */ + uint8_t cs_rr0_pps; /* which bit to use for PPS */ + /* the above is set only while CRTSCTS is enabled. */ + + uint8_t cs_wr5_dtr; /* which bit to write as DTR */ + uint8_t cs_wr5_rts; /* which bit to write as RTS */ + /* the above is set only while CRTSCTS is enabled. */ + + volatile uint8_t cs_softreq; /* need soft interrupt call */ + char cs_cua; /* CUA mode flag */ + + /* + * For strange systems that have oddly wired serial ports, we + * provide a pointer to the channel state of the port that has + * our status lines on it. + */ + struct zs_chanstate *cs_ctl_chan; + + /* power management hooks */ + int (*enable)(struct zs_chanstate *); + void (*disable)(struct zs_chanstate *); + int enabled; + + /* MD code might define a larger variant of this. */ +}; + +struct consdev; +struct zsc_attach_args { + int channel; /* two serial channels per zsc */ + int hwflags; /* see definitions below */ + /* `consdev' is only valid if ZS_HWFLAG_USE_CONSDEV is set */ + struct consdev *consdev; +}; + +/* In case of split console devices, use these: */ +#define ZS_HWFLAG_CONSOLE_INPUT 1 +#define ZS_HWFLAG_CONSOLE_OUTPUT 2 +#define ZS_HWFLAG_CONSOLE \ + (ZS_HWFLAG_CONSOLE_INPUT | ZS_HWFLAG_CONSOLE_OUTPUT) +#define ZS_HWFLAG_NO_DCD 4 /* Ignore the DCD bit */ +#define ZS_HWFLAG_NO_CTS 8 /* Ignore the CTS bit */ +#define ZS_HWFLAG_RAW 16 /* advise raw mode */ +#define ZS_HWFLAG_USE_CONSDEV 32 /* Use console ops from `consdev' */ +#define ZS_HWFLAG_NORESET 64 /* Don't reset at attach time */ + +extern int zs_major; + +int zsc_intr_soft(void *); +int zsc_intr_hard(void *); + +void zs_abort(struct zs_chanstate *); +void zs_break(struct zs_chanstate *, int); +void zs_iflush(struct zs_chanstate *); +void zs_loadchannelregs(struct zs_chanstate *); +int zs_set_speed(struct zs_chanstate *, int); +int zs_set_modes(struct zs_chanstate *, int); |