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      1 /* $NetBSD: jenseniovar.h,v 1.7 2023/12/04 00:32:10 thorpej Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe.
      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  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _ALPHA_JENSENIO_JENSENIOVAR_H_
     33 #define _ALPHA_JENSENIO_JENSENIOVAR_H_
     34 
     35 #include <sys/evcnt.h>
     36 #include <sys/vmem.h>
     37 
     38 /*
     39  * Arguments used to attach devices to the Jensen I/O bus.
     40  */
     41 struct jensenio_attach_args {
     42 	union {
     43 		struct eisabus_attach_args jaun_eisa;
     44 		struct isabus_attach_args jaun_isa;
     45 	} ja_un;
     46 
     47 	const char *ja_name;
     48 	bus_addr_t ja_ioaddr;		/* I/O space address */
     49 	int ja_irq[2];			/* Jensen IRQs */
     50 
     51 /* For attaching busses. */
     52 #define	ja_eisa		ja_un.jaun_eisa
     53 #define	ja_isa		ja_un.jaun_isa
     54 
     55 /* For attaching built-in devices. */
     56 #define	ja_iot		ja_eisa.eba_iot
     57 #define	ja_ec		ja_eisa.eba_ec
     58 };
     59 
     60 /*
     61  * The Jensen I/O bus configuration.
     62  *
     63  * All of the information that the chipset-specific functions need to
     64  * do their dirty work (and more!)
     65  */
     66 struct jensenio_config {
     67 	int	jc_initted;
     68 
     69 	struct alpha_bus_space jc_internal_iot, jc_eisa_iot, jc_eisa_memt;
     70 	struct alpha_eisa_chipset jc_ec;
     71 	struct alpha_isa_chipset jc_ic;
     72 
     73 	struct alpha_bus_dma_tag jc_dmat_eisa, jc_dmat_isa;
     74 
     75 	vmem_t *jc_io_arena;
     76 	vmem_t *jc_s_mem_arena;
     77 };
     78 
     79 /*
     80  * Interrupt handle for Jensen I/O interrupts that hook into
     81  * the SCB directly.
     82  */
     83 struct jensenio_scb_intrhand {
     84 	int		(*jih_func)(void *);
     85 	void		*jih_arg;
     86 	unsigned long	jih_vec;
     87 	char		jih_vecstr[8];
     88 	struct evcnt	jih_evcnt;
     89 };
     90 
     91 void	jensenio_page_physload(unsigned long, unsigned long);
     92 void	jensenio_init(struct jensenio_config *);
     93 void	jensenio_bus_io_init(bus_space_tag_t, void *);
     94 void	jensenio_bus_intio_init(bus_space_tag_t, void *);
     95 void	jensenio_bus_mem_init(bus_space_tag_t, void *);
     96 void	jensenio_intr_init(struct jensenio_config *);
     97 void	jensenio_dma_init(struct jensenio_config *);
     98 
     99 void	jensenio_intr_establish(struct jensenio_scb_intrhand *,
    100 	    unsigned long, int, int (*)(void *), void *);
    101 #endif /* _ALPHA_JENSENIO_JENSENIOVAR_H_ */
    102