/* $OpenBSD: pciidevar.h,v 1.20 2010/07/22 18:11:16 deraadt Exp $ */ /* $NetBSD: pciidevar.h,v 1.6 2001/01/12 16:04:00 bouyer Exp $ */ /* * Copyright (c) 1998 Christopher G. Demetriou. All rights reserved. * * 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 Christopher G. Demetriou * for the NetBSD Project. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. */ #ifndef _DEV_PCI_PCIIDEVAR_H_ #define _DEV_PCI_PCIIDEVAR_H_ /* * PCI IDE driver exported software structures. * * Author: Christopher G. Demetriou, March 2, 1998. */ #include #include #include /* * While standard PCI IDE controllers only have 2 channels, it is * common for PCI SATA controllers to have more. Here we define * the maximum number of channels that any one PCI IDE device can * have. */ #define PCIIDE_MAX_CHANNELS 4 struct pciide_softc { struct wdc_softc sc_wdcdev; /* common wdc definitions */ pci_chipset_tag_t sc_pc; /* PCI registers info */ pcitag_t sc_tag; void *sc_pci_ih; /* PCI interrupt handle */ int sc_dma_ok; /* bus-master DMA info */ bus_space_tag_t sc_dma_iot; bus_space_handle_t sc_dma_ioh; bus_size_t sc_dma_iosz; bus_dma_tag_t sc_dmat; /* * Some controllers might have DMA restrictions other than * the norm. */ bus_size_t sc_dma_maxsegsz; bus_size_t sc_dma_boundary; /* * Used as a register save space by pciide_activate() * * sc_save[] is for the 6 pci regs starting at PCI_MAPREG_END + 0x18 -- * most IDE chipsets need a subset of those saved. sc_save2 is for * up to 6 other registers, which specific chips might need saved. */ pcireg_t sc_save[6]; pcireg_t sc_save2[6]; /* Chip description */ const struct pciide_product_desc *sc_pp; /* unmap/detach */ void (*chip_unmap)(struct pciide_softc *, int); /* Chip revision */ int sc_rev; /* common definitions */ struct channel_softc *wdc_chanarray[PCIIDE_MAX_CHANNELS]; /* internal bookkeeping */ struct pciide_channel { /* per-channel data */ struct channel_softc wdc_channel; /* generic part */ const char *name; int hw_ok; /* hardware mapped & OK? */ int compat; /* is it compat? */ int dma_in_progress; void *ih; /* compat or pci handle */ bus_space_handle_t ctl_baseioh; /* ctrl regs blk, native mode */ /* DMA tables and DMA map for xfer, for each drive */ struct pciide_dma_maps { bus_dmamap_t dmamap_table; struct idedma_table *dma_table; bus_dmamap_t dmamap_xfer; int dma_flags; } dma_maps[2]; /* * Some controllers require certain bits to * always be set for proper operation of the * controller. Set those bits here, if they're * required. */ uint8_t idedma_cmd; } pciide_channels[PCIIDE_MAX_CHANNELS]; /* Chip-specific private data */ void *sc_cookie; /* DMA registers access functions */ u_int8_t (*sc_dmacmd_read)(struct pciide_softc *, int); void (*sc_dmacmd_write)(struct pciide_softc *, int, u_int8_t); u_int8_t (*sc_dmactl_read)(struct pciide_softc *, int); void (*sc_dmactl_write)(struct pciide_softc *, int, u_int8_t); void (*sc_dmatbl_write)(struct pciide_softc *, int, u_int32_t); }; #define PCIIDE_DMACMD_READ(sc, chan) \ (sc)->sc_dmacmd_read((sc), (chan)) #define PCIIDE_DMACMD_WRITE(sc, chan, val) \ (sc)->sc_dmacmd_write((sc), (chan), (val)) #define PCIIDE_DMACTL_READ(sc, chan) \ (sc)->sc_dmactl_read((sc), (chan)) #define PCIIDE_DMACTL_WRITE(sc, chan, val) \ (sc)->sc_dmactl_write((sc), (chan), (val)) #define PCIIDE_DMATBL_WRITE(sc, chan, val) \ (sc)->sc_dmatbl_write((sc), (chan), (val)) int pciide_mapregs_compat( struct pci_attach_args *, struct pciide_channel *, int, bus_size_t *, bus_size_t *); int pciide_mapregs_native(struct pci_attach_args *, struct pciide_channel *, bus_size_t *, bus_size_t *, int (*pci_intr)(void *)); void pciide_mapreg_dma(struct pciide_softc *, struct pci_attach_args *); int pciide_chansetup(struct pciide_softc *, int, pcireg_t); void pciide_mapchan(struct pci_attach_args *, struct pciide_channel *, pcireg_t, bus_size_t *, bus_size_t *, int (*pci_intr)(void *)); int pciide_chan_candisable(struct pciide_channel *); void pciide_map_compat_intr( struct pci_attach_args *, struct pciide_channel *, int, int); void pciide_unmap_compat_intr( struct pci_attach_args *, struct pciide_channel *, int, int); int pciide_compat_intr(void *); int pciide_pci_intr(void *); int pciide_intr_flag(struct pciide_channel *); u_int8_t pciide_dmacmd_read(struct pciide_softc *, int); void pciide_dmacmd_write(struct pciide_softc *, int, u_int8_t); u_int8_t pciide_dmactl_read(struct pciide_softc *, int); void pciide_dmactl_write(struct pciide_softc *, int, u_int8_t); void pciide_dmatbl_write(struct pciide_softc *, int, u_int32_t); void pciide_channel_dma_setup(struct pciide_channel *); int pciide_dma_table_setup(struct pciide_softc *, int, int); int pciide_dma_init(void *, int, int, void *, size_t, int); void pciide_dma_start(void *, int, int); int pciide_dma_finish(void *, int, int, int); void pciide_irqack(struct channel_softc *); void pciide_print_modes(struct pciide_channel *); void pciide_print_channels(int, pcireg_t); void default_chip_unmap(struct pciide_softc *, int); void pciide_unmapreg_dma(struct pciide_softc *); void pciide_chanfree(struct pciide_softc *, int); void pciide_unmap_chan(struct pciide_softc *, struct pciide_channel *, int); int pciide_unmapregs_compat(struct pciide_softc *, struct pciide_channel *); int pciide_unmapregs_native(struct pciide_softc *, struct pciide_channel *); int pciide_dma_table_free(struct pciide_softc *, int, int); void pciide_channel_dma_free(struct pciide_channel *); /* * Functions defined by machine-dependent code. */ #ifdef __i386__ void gcsc_chip_map(struct pciide_softc *, struct pci_attach_args *); #endif /* Attach compat interrupt handler, returning handle or NULL if failed. */ #if !defined(pciide_machdep_compat_intr_establish) void *pciide_machdep_compat_intr_establish(struct device *, struct pci_attach_args *, int, int (*)(void *), void *); void pciide_machdep_compat_intr_disestablish(pci_chipset_tag_t pc, void *); #endif #endif /* !_DEV_PCI_PCIIDEVAR_H_ */