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NetBSD/sys/dev/pci/pciidevar.h

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/* $NetBSD: pciidevar.h,v 1.38 2009/05/06 10:34:33 cegger 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 <dev/ata/atavar.h>
#include <dev/ic/wdcreg.h>
#include <dev/ic/wdcvar.h>
#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 */
#if NATA_DMA
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, Serverworks SATA, Artisea SATA
* and Promise SATA
*/
bus_space_tag_t sc_ba5_st;
bus_space_handle_t sc_ba5_sh;
int sc_ba5_en;
#endif /* NATA_DMA */
/* 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 */
#if NATA_DMA
/* 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;
#endif /* NATA_DMA */
} pciide_channels[PCIIDE_MAX_CHANNELS];
pcireg_t sc_pm_reg[4];
};
/* 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)(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(pci_chipset_tag_t, pcitag_t, int);
static inline void pciide_pci_write(pci_chipset_tag_t, pcitag_t,
int, u_int8_t);
static inline u_int8_t
pciide_pci_read(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(pci_chipset_tag_t pc, pcitag_t pa, int reg, uint8_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(struct pciide_softc*, struct pci_attach_args*);
void sata_setup_channel(struct ata_channel*);
void pciide_channel_dma_setup(struct pciide_channel *);
int pciide_dma_table_setup(struct pciide_softc*, int, int);
int pciide_dma_dmamap_setup(struct pciide_softc *, int, int,
void *, size_t, 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 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(device_t,
struct pci_attach_args *, int, int (*)(void *), void *);
#endif
const struct pciide_product_desc* pciide_lookup_product
(u_int32_t, const struct pciide_product_desc *);
void pciide_common_attach(struct pciide_softc *, struct pci_attach_args *,
const struct pciide_product_desc *);
int pciide_chipen(struct pciide_softc *, struct pci_attach_args *);
void pciide_mapregs_compat(struct pci_attach_args *,
struct pciide_channel *, int, bus_size_t *, bus_size_t*);
void 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 *));
void pciide_map_compat_intr(struct pci_attach_args *,
struct pciide_channel *, int);
int pciide_compat_intr(void *);
int pciide_pci_intr(void *);
#endif /* _DEV_PCI_PCIIDEVAR_H_ */
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