/* $NetBSD: pciidevar.h,v 1.26 2004/11/24 19:52:50 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 #include "opt_pciide.h" /* options passed via the 'flags' config keyword */ #define PCIIDE_OPTIONS_DMA 0x01 #define PCIIDE_OPTIONS_NODMA 0x02 #ifndef ATADEBUG #define ATADEBUG #endif #define DEBUG_DMA 0x01 #define DEBUG_XFERS 0x02 #define DEBUG_FUNCS 0x08 #define DEBUG_PROBE 0x10 #ifdef ATADEBUG extern int atadebug_pciide_mask; #define ATADEBUG_PRINT(args, level) \ if (atadebug_pciide_mask & (level)) printf args #else #define ATADEBUG_PRINT(args, level) #endif struct device; /* * 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 */ /* * sc_dma_ioh may only be used to allocate the dma_iohs * array in the channels (see below), or by chip-dependent * code that knows what it's doing, as the registers may * be laid out differently. All code in pciide_common.c * must use the channel->dma_iohs array. */ bus_space_tag_t sc_dma_iot; bus_space_handle_t sc_dma_ioh; 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; /* For VIA/AMD/nVidia */ bus_addr_t sc_apo_regbase; /* For Cypress */ const struct cy82c693_handle *sc_cy_handle; int sc_cy_compatchan; /* for SiS */ u_int8_t sis_type; /* For Silicon Image SATALink, and Promise SATA */ bus_space_tag_t sc_ba5_st; bus_space_handle_t sc_ba5_sh; int sc_ba5_en; /* Vendor info (for interpreting Chip description) */ pcireg_t sc_pci_id; /* Chip description */ const struct pciide_product_desc *sc_pp; /* common definitions */ struct ata_channel *wdc_chanarray[PCIIDE_MAX_CHANNELS]; /* internal bookkeeping */ struct pciide_channel { /* per-channel data */ struct ata_channel ata_channel; /* generic part */ const char *name; int compat; /* is it compat? */ 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]; bus_space_handle_t dma_iohs[IDEDMA_NREGS]; /* * 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]; }; /* Given an ata_channel, get the pciide_softc. */ #define CHAN_TO_PCIIDE(chp) ((struct pciide_softc *) (chp)->ch_atac) /* Given an ata_channel, get the pciide_channel. */ #define CHAN_TO_PCHAN(chp) ((struct pciide_channel *) (chp)) struct pciide_product_desc { u_int32_t ide_product; int ide_flags; const char *ide_name; /* map and setup chip, probe drives */ void (*chip_map) __P((struct pciide_softc*, struct pci_attach_args*)); }; /* Flags for ide_flags */ #define IDE_16BIT_IOSPACE 0x0002 /* I/O space BARS ignore upper word */ /* inlines for reading/writing 8-bit PCI registers */ static __inline u_int8_t pciide_pci_read __P((pci_chipset_tag_t, pcitag_t, int)); static __inline void pciide_pci_write __P((pci_chipset_tag_t, pcitag_t, int, u_int8_t)); static __inline u_int8_t pciide_pci_read(pc, pa, reg) pci_chipset_tag_t pc; pcitag_t pa; int reg; { return (pci_conf_read(pc, pa, (reg & ~0x03)) >> ((reg & 0x03) * 8) & 0xff); } static __inline void pciide_pci_write(pc, pa, reg, val) pci_chipset_tag_t pc; pcitag_t pa; int reg; u_int8_t val; { pcireg_t pcival; pcival = pci_conf_read(pc, pa, (reg & ~0x03)); pcival &= ~(0xff << ((reg & 0x03) * 8)); pcival |= (val << ((reg & 0x03) * 8)); pci_conf_write(pc, pa, (reg & ~0x03), pcival); } void default_chip_map __P((struct pciide_softc*, struct pci_attach_args*)); void sata_setup_channel __P((struct ata_channel*)); void pciide_channel_dma_setup __P((struct pciide_channel *)); int pciide_dma_table_setup __P((struct pciide_softc*, int, int)); int pciide_dma_dmamap_setup __P((struct pciide_softc *, int, int, void *, size_t, int)); int pciide_dma_init __P((void*, int, int, void *, size_t, int)); void pciide_dma_start __P((void*, int, int)); int pciide_dma_finish __P((void*, int, int, int)); void pciide_irqack __P((struct ata_channel *)); /* * Functions defined by machine-dependent code. */ /* Attach compat interrupt handler, returning handle or NULL if failed. */ #ifdef __HAVE_PCIIDE_MACHDEP_COMPAT_INTR_ESTABLISH void *pciide_machdep_compat_intr_establish __P((struct device *, struct pci_attach_args *, int, int (*)(void *), void *)); #endif const struct pciide_product_desc* pciide_lookup_product __P((u_int32_t, const struct pciide_product_desc *)); void pciide_common_attach __P((struct pciide_softc *, struct pci_attach_args *, const struct pciide_product_desc *)); int pciide_chipen __P((struct pciide_softc *, struct pci_attach_args *)); void pciide_mapregs_compat __P(( struct pci_attach_args *, struct pciide_channel *, int, bus_size_t *, bus_size_t*)); void pciide_mapregs_native __P((struct pci_attach_args *, struct pciide_channel *, bus_size_t *, bus_size_t *, int (*pci_intr) __P((void *)))); void pciide_mapreg_dma __P((struct pciide_softc *, struct pci_attach_args *)); int pciide_chansetup __P((struct pciide_softc *, int, pcireg_t)); void pciide_mapchan __P((struct pci_attach_args *, struct pciide_channel *, pcireg_t, bus_size_t *, bus_size_t *, int (*pci_intr) __P((void *)))); void pciide_map_compat_intr __P(( struct pci_attach_args *, struct pciide_channel *, int)); int pciide_compat_intr __P((void *)); int pciide_pci_intr __P((void *)); #endif /* _DEV_PCI_PCIIDEVAR_H_ */