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pciidevar.h revision 1.7.16.2 
      1 /*	$NetBSD: pciidevar.h,v 1.7.16.2 2004/07/12 21:24:32 he Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1998 Christopher G. Demetriou.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *      This product includes software developed by Christopher G. Demetriou
     17  *	for the NetBSD Project.
     18  * 4. The name of the author 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 THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 /*
     34  * PCI IDE driver exported software structures.
     35  *
     36  * Author: Christopher G. Demetriou, March 2, 1998.
     37  */
     38 
     39 #include <dev/ata/atavar.h>
     40 #include <dev/ic/wdcreg.h>
     41 #include <dev/ic/wdcvar.h>
     42 
     43 struct device;
     44 
     45 struct pciide_softc {
     46 	struct wdc_softc	sc_wdcdev;	/* common wdc definitions */
     47 	pci_chipset_tag_t	sc_pc;		/* PCI registers info */
     48 	pcitag_t		sc_tag;
     49 	void			*sc_pci_ih;	/* PCI interrupt handle */
     50 	int			sc_dma_ok;	/* bus-master DMA info */
     51 	bus_space_tag_t		sc_dma_iot;
     52 	bus_space_handle_t	sc_dma_ioh;
     53 	bus_dma_tag_t		sc_dmat;
     54 
     55 	/*
     56 	 * Some controllers might have DMA restrictions other than
     57 	 * the norm.
     58 	 */
     59 	bus_size_t		sc_dma_maxsegsz;
     60 	bus_size_t		sc_dma_boundary;
     61 
     62 	/* For Cypress */
     63 	const struct cy82c693_handle *sc_cy_handle;
     64 	int sc_cy_compatchan;
     65 
     66 	/* for SiS */
     67 	u_int8_t sis_type;
     68 
     69 	/* Chip description */
     70 	const struct pciide_product_desc *sc_pp;
     71 	/* common definitions */
     72 	struct channel_softc *wdc_chanarray[PCIIDE_NUM_CHANNELS];
     73 	/* internal bookkeeping */
     74 	struct pciide_channel {			/* per-channel data */
     75 		struct channel_softc wdc_channel; /* generic part */
     76 		char		*name;
     77 		int		hw_ok;	/* hardware mapped & OK? */
     78 		int		compat;	/* is it compat? */
     79 		void		*ih;	/* compat or pci handle */
     80 		bus_space_handle_t ctl_baseioh; /* ctrl regs blk, native mode */
     81 		/* DMA tables and DMA map for xfer, for each drive */
     82 		struct pciide_dma_maps {
     83 			bus_dmamap_t    dmamap_table;
     84 			struct idedma_table *dma_table;
     85 			bus_dmamap_t    dmamap_xfer;
     86 			int dma_flags;
     87 		} dma_maps[2];
     88 	} pciide_channels[PCIIDE_NUM_CHANNELS];
     89 };
     90 
     91 /*
     92  * Functions defined by machine-dependent code.
     93  */
     94 
     95 /* Attach compat interrupt handler, returning handle or NULL if failed. */
     96 #ifdef __HAVE_PCIIDE_MACHDEP_COMPAT_INTR_ESTABLISH
     97 void	*pciide_machdep_compat_intr_establish __P((struct device *,
     98 	    struct pci_attach_args *, int, int (*)(void *), void *));
     99 #endif
    100