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Diffstat (limited to 'sys/arch/sgi/include/z8530var.h')
| -rw-r--r-- | sys/arch/sgi/include/z8530var.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/sys/arch/sgi/include/z8530var.h b/sys/arch/sgi/include/z8530var.h new file mode 100644 index 00000000000..5fab516b720 --- /dev/null +++ b/sys/arch/sgi/include/z8530var.h @@ -0,0 +1,121 @@ +/* $OpenBSD: z8530var.h,v 1.1 2012/03/28 20:44:23 miod Exp $ */ +/* $NetBSD: z8530var.h,v 1.10 2011/07/01 21:00:21 dyoung 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 + */ + +#include <machine/bus.h> +#include <sgi/hpc/z8530sc.h> + +struct zs_channel { + struct zs_chanstate cs_zscs; /* Required: soft state */ + bus_space_tag_t cs_bustag; /* Machine-dependent */ + bus_space_handle_t cs_regs; +}; + +struct zsc_softc { + struct device zsc_dev; /* required: base device */ + struct zs_chanstate *zsc_cs[2]; /* channel soft state */ + struct zs_channel zsc_cs_store[2]; + /* Machine-dependent part follows... */ + bus_space_tag_t zsc_bustag; /* Bus type */ + bus_space_handle_t zsc_base; /* Device base address */ + void *sc_si; /* Softinterrupt handle */ +}; + +/* + * Functions to read and write individual registers in a channel. + * The SCC chip requires 3-4 PCLK cycles recovery time between accesses + */ + +uint8_t zs_read_reg(struct zs_chanstate *, uint8_t); +uint8_t zs_read_csr(struct zs_chanstate *); +uint8_t zs_read_data(struct zs_chanstate *); + +void zs_write_reg(struct zs_chanstate *, uint8_t, uint8_t); +void zs_write_csr(struct zs_chanstate *, uint8_t); +void zs_write_data(struct zs_chanstate *, uint8_t); + +/* Zilog Serial hardware interrupts (level 0) */ +#define splzs() spltty() +#define IPL_ZS IPL_TTY |