pciio.h
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- /* $Id$
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1992 - 1997, 2000 Silicon Graphics, Inc.
- * Copyright (C) 2000 by Colin Ngam
- */
- #ifndef _ASM_SN_PCI_PCIIO_H
- #define _ASM_SN_PCI_PCIIO_H
- /*
- * pciio.h -- platform-independent PCI interface
- */
- #include <asm/sn/ioerror.h>
- #include <asm/sn/iobus.h>
- #if defined(_LANGUAGE_C) || defined(_LANGUAGE_C_PLUS_PLUS)
- #include <asm/sn/dmamap.h>
- #include <asm/sn/alenlist.h>
- #ifdef __cplusplus
- extern "C" {
- #endif
- typedef int pciio_vendor_id_t;
- #define PCIIO_VENDOR_ID_NONE -1
- typedef int pciio_device_id_t;
- #define PCIIO_DEVICE_ID_NONE -1
- typedef uint8_t pciio_bus_t; /* PCI bus number (0..255) */
- typedef uint8_t pciio_slot_t; /* PCI slot number (0..31, 255) */
- typedef uint8_t pciio_function_t; /* PCI func number (0..7, 255) */
- #define PCIIO_SLOTS ((pciio_slot_t)32)
- #define PCIIO_FUNCS ((pciio_function_t)8)
- #define PCIIO_SLOT_NONE ((pciio_slot_t)255)
- #define PCIIO_FUNC_NONE ((pciio_function_t)255)
- typedef int pciio_intr_line_t; /* PCI interrupt line(s) */
- #define PCIIO_INTR_LINE(n) (0x1 << (n))
- #define PCIIO_INTR_LINE_A (0x1)
- #define PCIIO_INTR_LINE_B (0x2)
- #define PCIIO_INTR_LINE_C (0x4)
- #define PCIIO_INTR_LINE_D (0x8)
- typedef int pciio_space_t; /* PCI address space designation */
- #define PCIIO_SPACE_NONE (0)
- #define PCIIO_SPACE_ROM (1)
- #define PCIIO_SPACE_IO (2)
- /* PCIIO_SPACE_ (3) */
- #define PCIIO_SPACE_MEM (4)
- #define PCIIO_SPACE_MEM32 (5)
- #define PCIIO_SPACE_MEM64 (6)
- #define PCIIO_SPACE_CFG (7)
- #define PCIIO_SPACE_WIN0 (8)
- #define PCIIO_SPACE_WIN(n) (PCIIO_SPACE_WIN0+(n)) /* 8..13 */
- /* PCIIO_SPACE_ (14) */
- #define PCIIO_SPACE_BAD (15)
- #if 1 /* does anyone really use these? */
- #define PCIIO_SPACE_USER0 (20)
- #define PCIIO_SPACE_USER(n) (PCIIO_SPACE_USER0+(n)) /* 20 .. ? */
- #endif
- /*
- * PCI_NOWHERE is the error value returned in
- * place of a PCI address when there is no
- * corresponding address.
- */
- #define PCI_NOWHERE (0)
- /*
- * Acceptable flag bits for pciio service calls
- *
- * PCIIO_FIXED: require that mappings be established
- * using fixed sharable resources; address
- * translation results will be permanently
- * available. (PIOMAP_FIXED and DMAMAP_FIXED are
- * the same numeric value and are acceptable).
- * PCIIO_NOSLEEP: if any part of the operation would
- * sleep waiting for resoruces, return an error
- * instead. (PIOMAP_NOSLEEP and DMAMAP_NOSLEEP are
- * the same numeric value and are acceptable).
- * PCIIO_INPLACE: when operating on alenlist structures,
- * reuse the source alenlist rather than creating a
- * new one. (PIOMAP_INPLACE and DMAMAP_INPLACE are
- * the same numeric value and are acceptable).
- *
- * PCIIO_DMA_CMD: configure this stream as a
- * generic "command" stream. Generally this
- * means turn off prefetchers and write
- * gatherers, and whatever else might be
- * necessary to make command ring DMAs
- * work as expected.
- * PCIIO_DMA_DATA: configure this stream as a
- * generic "data" stream. Generally, this
- * means turning on prefetchers and write
- * gatherers, and anything else that might
- * increase the DMA throughput (short of
- * using "high priority" or "real time"
- * resources that may lower overall system
- * performance).
- * PCIIO_DMA_A64: this device is capable of
- * using 64-bit DMA addresses. Unless this
- * flag is specified, it is assumed that
- * the DMA address must be in the low 4G
- * of PCI space.
- * PCIIO_PREFETCH: if there are prefetchers
- * available, they can be turned on.
- * PCIIO_NOPREFETCH: any prefetchers along
- * the dma path should be turned off.
- * PCIIO_WRITE_GATHER: if there are write gatherers
- * available, they can be turned on.
- * PCIIO_NOWRITE_GATHER: any write gatherers along
- * the dma path should be turned off.
- *
- * PCIIO_BYTE_STREAM: the DMA stream represents a group
- * of ordered bytes. Arrange all byte swapping
- * hardware so that the bytes land in the correct
- * order. This is a common setting for data
- * channels, but is NOT implied by PCIIO_DMA_DATA.
- * PCIIO_WORD_VALUES: the DMA stream is used to
- * communicate quantities stored in multiple bytes,
- * and the device doing the DMA is little-endian;
- * arrange any swapping hardware so that
- * 32-bit-wide values are maintained. This is a
- * common setting for command rings that contain
- * DMA addresses and counts, but is NOT implied by
- * PCIIO_DMA_CMD. CPU Accesses to 16-bit fields
- * must have their address xor-ed with 2, and
- * accesses to individual bytes must have their
- * addresses xor-ed with 3 relative to what the
- * device expects.
- *
- * NOTE: any "provider specific" flags that
- * conflict with the generic flags will
- * override the generic flags, locally
- * at that provider.
- *
- * Also, note that PCI-generic flags (PCIIO_) are
- * in bits 0-14. The upper bits, 15-31, are reserved
- * for PCI implementation-specific flags.
- */
- #define PCIIO_FIXED DMAMAP_FIXED
- #define PCIIO_NOSLEEP DMAMAP_NOSLEEP
- #define PCIIO_INPLACE DMAMAP_INPLACE
- #define PCIIO_DMA_CMD 0x0010
- #define PCIIO_DMA_DATA 0x0020
- #define PCIIO_DMA_A64 0x0040
- #define PCIIO_WRITE_GATHER 0x0100
- #define PCIIO_NOWRITE_GATHER 0x0200
- #define PCIIO_PREFETCH 0x0400
- #define PCIIO_NOPREFETCH 0x0800
- /* Requesting an endianness setting that the
- * underlieing hardware can not support
- * WILL result in a failure to allocate
- * dmamaps or complete a dmatrans.
- */
- #define PCIIO_BYTE_STREAM 0x1000 /* set BYTE SWAP for "byte stream" */
- #define PCIIO_WORD_VALUES 0x2000 /* set BYTE SWAP for "word values" */
- /*
- * Interface to deal with PCI endianness.
- * The driver calls pciio_endian_set once, supplying the actual endianness of
- * the device and the desired endianness. On SGI systems, only use LITTLE if
- * dealing with a driver that does software swizzling. Most of the time,
- * it's preferable to request BIG. The return value indicates the endianness
- * that is actually achieved. On systems that support hardware swizzling,
- * the achieved endianness will be the desired endianness. On systems without
- * swizzle hardware, the achieved endianness will be the device's endianness.
- */
- typedef enum pciio_endian_e {
- PCIDMA_ENDIAN_BIG,
- PCIDMA_ENDIAN_LITTLE
- } pciio_endian_t;
- /*
- * Interface to set PCI arbitration priority for devices that require
- * realtime characteristics. pciio_priority_set is used to switch a
- * device between the PCI high-priority arbitration ring and the low
- * priority arbitration ring.
- *
- * (Note: this is strictly for the PCI arbitrary priority. It has
- * no direct relationship to GBR.)
- */
- typedef enum pciio_priority_e {
- PCI_PRIO_LOW,
- PCI_PRIO_HIGH
- } pciio_priority_t;
- /*
- * handles of various sorts
- */
- typedef struct pciio_piomap_s *pciio_piomap_t;
- typedef struct pciio_dmamap_s *pciio_dmamap_t;
- typedef struct pciio_intr_s *pciio_intr_t;
- typedef struct pciio_info_s *pciio_info_t;
- typedef struct pciio_piospace_s *pciio_piospace_t;
- /* PIO MANAGEMENT */
- /*
- * A NOTE ON PCI PIO ADDRESSES
- *
- * PCI supports three different address spaces: CFG
- * space, MEM space and I/O space. Further, each
- * card always accepts CFG accesses at an address
- * based on which slot it is attached to, but can
- * decode up to six address ranges.
- *
- * Assignment of the base address registers for all
- * PCI devices is handled centrally; most commonly,
- * device drivers will want to talk to offsets
- * within one or another of the address ranges. In
- * order to do this, which of these "address
- * spaces" the PIO is directed into must be encoded
- * in the flag word.
- *
- * We reserve the right to defer allocation of PCI
- * address space for a device window until the
- * driver makes a piomap_alloc or piotrans_addr
- * request.
- *
- * If a device driver mucks with its device's base
- * registers through a PIO mapping to CFG space,
- * results of further PIO through the corresponding
- * window are UNDEFINED.
- *
- * Windows are named by the index in the base
- * address register set for the device of the
- * desired register; IN THE CASE OF 64 BIT base
- * registers, the index should be to the word of
- * the register that contains the mapping type
- * bits; since the PCI CFG space is natively
- * organized little-endian fashion, this is the
- * first of the two words.
- *
- * AT THE MOMENT, any required corrections for
- * endianness are the responsibility of the device
- * driver; not all platforms support control in
- * hardware of byteswapping hardware. We anticipate
- * providing flag bits to the PIO and DMA
- * management interfaces to request different
- * configurations of byteswapping hardware.
- *
- * PIO Accesses to CFG space via the "Bridge" ASIC
- * used in IP30 platforms preserve the native byte
- * significance within the 32-bit word; byte
- * addresses for single byte accesses need to be
- * XORed with 3, and addresses for 16-bit accesses
- * need to be XORed with 2.
- *
- * The IOC3 used on IP30, and other SGI PCI devices
- * as well, require use of 32-bit accesses to their
- * configuration space registers. Any potential PCI
- * bus providers need to be aware of this requirement.
- */
- #define PCIIO_PIOMAP_CFG (0x1)
- #define PCIIO_PIOMAP_MEM (0x2)
- #define PCIIO_PIOMAP_IO (0x4)
- #define PCIIO_PIOMAP_WIN(n) (0x8+(n))
- typedef pciio_piomap_t
- pciio_piomap_alloc_f (devfs_handle_t dev, /* set up mapping for this device */
- device_desc_t dev_desc, /* device descriptor */
- pciio_space_t space, /* which address space */
- iopaddr_t pcipio_addr, /* starting address */
- size_t byte_count,
- size_t byte_count_max, /* maximum size of a mapping */
- unsigned flags); /* defined in sys/pio.h */
- typedef void
- pciio_piomap_free_f (pciio_piomap_t pciio_piomap);
- typedef caddr_t
- pciio_piomap_addr_f (pciio_piomap_t pciio_piomap, /* mapping resources */
- iopaddr_t pciio_addr, /* map for this pcipio address */
- size_t byte_count); /* map this many bytes */
- typedef void
- pciio_piomap_done_f (pciio_piomap_t pciio_piomap);
- typedef caddr_t
- pciio_piotrans_addr_f (devfs_handle_t dev, /* translate for this device */
- device_desc_t dev_desc, /* device descriptor */
- pciio_space_t space, /* which address space */
- iopaddr_t pciio_addr, /* starting address */
- size_t byte_count, /* map this many bytes */
- unsigned flags);
- typedef caddr_t
- pciio_pio_addr_f (devfs_handle_t dev, /* translate for this device */
- device_desc_t dev_desc, /* device descriptor */
- pciio_space_t space, /* which address space */
- iopaddr_t pciio_addr, /* starting address */
- size_t byte_count, /* map this many bytes */
- pciio_piomap_t *mapp, /* in case a piomap was needed */
- unsigned flags);
- typedef iopaddr_t
- pciio_piospace_alloc_f (devfs_handle_t dev, /* PIO space for this device */
- device_desc_t dev_desc, /* Device descriptor */
- pciio_space_t space, /* which address space */
- size_t byte_count, /* Number of bytes of space */
- size_t alignment); /* Alignment of allocation */
- typedef void
- pciio_piospace_free_f (devfs_handle_t dev, /* Device freeing space */
- pciio_space_t space, /* Which space is freed */
- iopaddr_t pci_addr, /* Address being freed */
- size_t size); /* Size freed */
- /* DMA MANAGEMENT */
- typedef pciio_dmamap_t
- pciio_dmamap_alloc_f (devfs_handle_t dev, /* set up mappings for this device */
- device_desc_t dev_desc, /* device descriptor */
- size_t byte_count_max, /* max size of a mapping */
- unsigned flags); /* defined in dma.h */
- typedef void
- pciio_dmamap_free_f (pciio_dmamap_t dmamap);
- typedef iopaddr_t
- pciio_dmamap_addr_f (pciio_dmamap_t dmamap, /* use these mapping resources */
- paddr_t paddr, /* map for this address */
- size_t byte_count); /* map this many bytes */
- typedef alenlist_t
- pciio_dmamap_list_f (pciio_dmamap_t dmamap, /* use these mapping resources */
- alenlist_t alenlist, /* map this address/length list */
- unsigned flags);
- typedef void
- pciio_dmamap_done_f (pciio_dmamap_t dmamap);
- typedef iopaddr_t
- pciio_dmatrans_addr_f (devfs_handle_t dev, /* translate for this device */
- device_desc_t dev_desc, /* device descriptor */
- paddr_t paddr, /* system physical address */
- size_t byte_count, /* length */
- unsigned flags); /* defined in dma.h */
- typedef alenlist_t
- pciio_dmatrans_list_f (devfs_handle_t dev, /* translate for this device */
- device_desc_t dev_desc, /* device descriptor */
- alenlist_t palenlist, /* system address/length list */
- unsigned flags); /* defined in dma.h */
- typedef void
- pciio_dmamap_drain_f (pciio_dmamap_t map);
- typedef void
- pciio_dmaaddr_drain_f (devfs_handle_t vhdl,
- paddr_t addr,
- size_t bytes);
- typedef void
- pciio_dmalist_drain_f (devfs_handle_t vhdl,
- alenlist_t list);
- /* INTERRUPT MANAGEMENT */
- typedef pciio_intr_t
- pciio_intr_alloc_f (devfs_handle_t dev, /* which PCI device */
- device_desc_t dev_desc, /* device descriptor */
- pciio_intr_line_t lines, /* which line(s) will be used */
- devfs_handle_t owner_dev); /* owner of this intr */
- typedef void
- pciio_intr_free_f (pciio_intr_t intr_hdl);
- typedef int
- pciio_intr_connect_f (pciio_intr_t intr_hdl, /* pciio intr resource handle */
- intr_func_t intr_func, /* pciio intr handler */
- intr_arg_t intr_arg, /* arg to intr handler */
- void *thread); /* intr thread to use */
- typedef void
- pciio_intr_disconnect_f (pciio_intr_t intr_hdl);
- typedef devfs_handle_t
- pciio_intr_cpu_get_f (pciio_intr_t intr_hdl); /* pciio intr resource handle */
- /* CONFIGURATION MANAGEMENT */
- typedef void
- pciio_provider_startup_f (devfs_handle_t pciio_provider);
- typedef void
- pciio_provider_shutdown_f (devfs_handle_t pciio_provider);
- typedef int
- pciio_reset_f (devfs_handle_t conn); /* pci connection point */
- typedef int
- pciio_write_gather_flush_f (devfs_handle_t dev); /* Device flushing buffers */
- typedef pciio_endian_t /* actual endianness */
- pciio_endian_set_f (devfs_handle_t dev, /* specify endianness for this device */
- pciio_endian_t device_end, /* endianness of device */
- pciio_endian_t desired_end); /* desired endianness */
- typedef pciio_priority_t
- pciio_priority_set_f (devfs_handle_t pcicard,
- pciio_priority_t device_prio);
- typedef uint64_t
- pciio_config_get_f (devfs_handle_t conn, /* pci connection point */
- unsigned reg, /* register byte offset */
- unsigned size); /* width in bytes (1..4) */
- typedef void
- pciio_config_set_f (devfs_handle_t conn, /* pci connection point */
- unsigned reg, /* register byte offset */
- unsigned size, /* width in bytes (1..4) */
- uint64_t value); /* value to store */
- typedef int
- pciio_error_devenable_f (devfs_handle_t pconn_vhdl, int error_code);
- typedef pciio_slot_t
- pciio_error_extract_f (devfs_handle_t vhdl,
- pciio_space_t *spacep,
- iopaddr_t *addrp);
- typedef void
- pciio_driver_reg_callback_f (devfs_handle_t conn,
- int key1,
- int key2,
- int error);
- typedef void
- pciio_driver_unreg_callback_f (devfs_handle_t conn, /* pci connection point */
- int key1,
- int key2,
- int error);
- typedef int
- pciio_device_unregister_f (devfs_handle_t conn);
- typedef int
- pciio_dma_enabled_f (devfs_handle_t conn);
- /*
- * Adapters that provide a PCI interface adhere to this software interface.
- */
- typedef struct pciio_provider_s {
- /* PIO MANAGEMENT */
- pciio_piomap_alloc_f *piomap_alloc;
- pciio_piomap_free_f *piomap_free;
- pciio_piomap_addr_f *piomap_addr;
- pciio_piomap_done_f *piomap_done;
- pciio_piotrans_addr_f *piotrans_addr;
- pciio_piospace_alloc_f *piospace_alloc;
- pciio_piospace_free_f *piospace_free;
- /* DMA MANAGEMENT */
- pciio_dmamap_alloc_f *dmamap_alloc;
- pciio_dmamap_free_f *dmamap_free;
- pciio_dmamap_addr_f *dmamap_addr;
- pciio_dmamap_list_f *dmamap_list;
- pciio_dmamap_done_f *dmamap_done;
- pciio_dmatrans_addr_f *dmatrans_addr;
- pciio_dmatrans_list_f *dmatrans_list;
- pciio_dmamap_drain_f *dmamap_drain;
- pciio_dmaaddr_drain_f *dmaaddr_drain;
- pciio_dmalist_drain_f *dmalist_drain;
- /* INTERRUPT MANAGEMENT */
- pciio_intr_alloc_f *intr_alloc;
- pciio_intr_free_f *intr_free;
- pciio_intr_connect_f *intr_connect;
- pciio_intr_disconnect_f *intr_disconnect;
- pciio_intr_cpu_get_f *intr_cpu_get;
- /* CONFIGURATION MANAGEMENT */
- pciio_provider_startup_f *provider_startup;
- pciio_provider_shutdown_f *provider_shutdown;
- pciio_reset_f *reset;
- pciio_write_gather_flush_f *write_gather_flush;
- pciio_endian_set_f *endian_set;
- pciio_priority_set_f *priority_set;
- pciio_config_get_f *config_get;
- pciio_config_set_f *config_set;
- /* Error handling interface */
- pciio_error_devenable_f *error_devenable;
- pciio_error_extract_f *error_extract;
- /* Callback support */
- pciio_driver_reg_callback_f *driver_reg_callback;
- pciio_driver_unreg_callback_f *driver_unreg_callback;
- pciio_device_unregister_f *device_unregister;
- pciio_dma_enabled_f *dma_enabled;
- } pciio_provider_t;
- /* PCI devices use these standard PCI provider interfaces */
- extern pciio_piomap_alloc_f pciio_piomap_alloc;
- extern pciio_piomap_free_f pciio_piomap_free;
- extern pciio_piomap_addr_f pciio_piomap_addr;
- extern pciio_piomap_done_f pciio_piomap_done;
- extern pciio_piotrans_addr_f pciio_piotrans_addr;
- extern pciio_pio_addr_f pciio_pio_addr;
- extern pciio_piospace_alloc_f pciio_piospace_alloc;
- extern pciio_piospace_free_f pciio_piospace_free;
- extern pciio_dmamap_alloc_f pciio_dmamap_alloc;
- extern pciio_dmamap_free_f pciio_dmamap_free;
- extern pciio_dmamap_addr_f pciio_dmamap_addr;
- extern pciio_dmamap_list_f pciio_dmamap_list;
- extern pciio_dmamap_done_f pciio_dmamap_done;
- extern pciio_dmatrans_addr_f pciio_dmatrans_addr;
- extern pciio_dmatrans_list_f pciio_dmatrans_list;
- extern pciio_dmamap_drain_f pciio_dmamap_drain;
- extern pciio_dmaaddr_drain_f pciio_dmaaddr_drain;
- extern pciio_dmalist_drain_f pciio_dmalist_drain;
- extern pciio_intr_alloc_f pciio_intr_alloc;
- extern pciio_intr_free_f pciio_intr_free;
- extern pciio_intr_connect_f pciio_intr_connect;
- extern pciio_intr_disconnect_f pciio_intr_disconnect;
- extern pciio_intr_cpu_get_f pciio_intr_cpu_get;
- extern pciio_provider_startup_f pciio_provider_startup;
- extern pciio_provider_shutdown_f pciio_provider_shutdown;
- extern pciio_reset_f pciio_reset;
- extern pciio_write_gather_flush_f pciio_write_gather_flush;
- extern pciio_endian_set_f pciio_endian_set;
- extern pciio_priority_set_f pciio_priority_set;
- extern pciio_config_get_f pciio_config_get;
- extern pciio_config_set_f pciio_config_set;
- extern pciio_error_devenable_f pciio_error_devenable;
- extern pciio_error_extract_f pciio_error_extract;
- /* Widgetdev in the IOERROR structure is encoded as follows.
- * +---------------------------+
- * | slot (7:3) | function(2:0)|
- * +---------------------------+
- * Following are the convenience interfaces to get at form
- * a widgetdev or to break it into its constituents.
- */
- #define PCIIO_WIDGETDEV_SLOT_SHFT 3
- #define PCIIO_WIDGETDEV_SLOT_MASK 0x1f
- #define PCIIO_WIDGETDEV_FUNC_MASK 0x7
- #define pciio_widgetdev_create(slot,func)
- (((slot) << PCIIO_WIDGETDEV_SLOT_SHFT) + (func))
- #define pciio_widgetdev_slot_get(wdev)
- (((wdev) >> PCIIO_WIDGETDEV_SLOT_SHFT) & PCIIO_WIDGETDEV_SLOT_MASK)
- #define pciio_widgetdev_func_get(wdev)
- ((wdev) & PCIIO_WIDGETDEV_FUNC_MASK)
- /* Generic PCI card initialization interface
- */
- extern int
- pciio_driver_register (pciio_vendor_id_t vendor_id, /* card's vendor number */
- pciio_device_id_t device_id, /* card's device number */
- char *driver_prefix, /* driver prefix */
- unsigned flags);
- extern void
- pciio_error_register (devfs_handle_t pconn, /* which slot */
- error_handler_f *efunc, /* function to call */
- error_handler_arg_t einfo); /* first parameter */
- extern void pciio_driver_unregister(char *driver_prefix);
- typedef void pciio_iter_f(devfs_handle_t pconn); /* a connect point */
- extern void pciio_iterate(char *driver_prefix,
- pciio_iter_f *func);
- /* Interfaces used by PCI Bus Providers to talk to
- * the Generic PCI layer.
- */
- extern devfs_handle_t
- pciio_device_register (devfs_handle_t connectpt, /* vertex at center of bus */
- devfs_handle_t master, /* card's master ASIC (pci provider) */
- pciio_slot_t slot, /* card's slot (0..?) */
- pciio_function_t func, /* card's func (0..?) */
- pciio_vendor_id_t vendor, /* card's vendor number */
- pciio_device_id_t device); /* card's device number */
- extern void
- pciio_device_unregister(devfs_handle_t connectpt);
- extern pciio_info_t
- pciio_device_info_new (pciio_info_t pciio_info, /* preallocated info struct */
- devfs_handle_t master, /* card's master ASIC (pci provider) */
- pciio_slot_t slot, /* card's slot (0..?) */
- pciio_function_t func, /* card's func (0..?) */
- pciio_vendor_id_t vendor, /* card's vendor number */
- pciio_device_id_t device); /* card's device number */
- extern void
- pciio_device_info_free(pciio_info_t pciio_info);
- extern devfs_handle_t
- pciio_device_info_register(
- devfs_handle_t connectpt, /* vertex at center of bus */
- pciio_info_t pciio_info); /* details about conn point */
- extern void
- pciio_device_info_unregister(
- devfs_handle_t connectpt, /* vertex at center of bus */
- pciio_info_t pciio_info); /* details about conn point */
- extern int
- pciio_device_attach(
- devfs_handle_t pcicard, /* vertex created by pciio_device_register */
- int drv_flags);
- extern int
- pciio_device_detach(
- devfs_handle_t pcicard, /* vertex created by pciio_device_register */
- int drv_flags);
- /*
- * Generic PCI interface, for use with all PCI providers
- * and all PCI devices.
- */
- /* Generic PCI interrupt interfaces */
- extern devfs_handle_t pciio_intr_dev_get(pciio_intr_t pciio_intr);
- extern devfs_handle_t pciio_intr_cpu_get(pciio_intr_t pciio_intr);
- /* Generic PCI pio interfaces */
- extern devfs_handle_t pciio_pio_dev_get(pciio_piomap_t pciio_piomap);
- extern pciio_slot_t pciio_pio_slot_get(pciio_piomap_t pciio_piomap);
- extern pciio_space_t pciio_pio_space_get(pciio_piomap_t pciio_piomap);
- extern iopaddr_t pciio_pio_pciaddr_get(pciio_piomap_t pciio_piomap);
- extern ulong pciio_pio_mapsz_get(pciio_piomap_t pciio_piomap);
- extern caddr_t pciio_pio_kvaddr_get(pciio_piomap_t pciio_piomap);
- #ifdef LATER
- #ifdef USE_PCI_PIO
- extern uint8_t pciio_pio_read8(volatile uint8_t *addr);
- extern uint16_t pciio_pio_read16(volatile uint16_t *addr);
- extern uint32_t pciio_pio_read32(volatile uint32_t *addr);
- extern uint64_t pciio_pio_read64(volatile uint64_t *addr);
- extern void pciio_pio_write8(uint8_t val, volatile uint8_t *addr);
- extern void pciio_pio_write16(uint16_t val, volatile uint16_t *addr);
- extern void pciio_pio_write32(uint32_t val, volatile uint32_t *addr);
- extern void pciio_pio_write64(uint64_t val, volatile uint64_t *addr);
- #else /* !USE_PCI_PIO */
- __inline uint8_t pciio_pio_read8(volatile uint8_t *addr)
- {
- return *addr;
- }
- __inline uint16_t pciio_pio_read16(volatile uint16_t *addr)
- {
- return *addr;
- }
- __inline uint32_t pciio_pio_read32(volatile uint32_t *addr)
- {
- return *addr;
- }
- __inline uint64_t pciio_pio_read64(volatile uint64_t *addr)
- {
- return *addr;
- }
- __inline void pciio_pio_write8(uint8_t val, volatile uint8_t *addr)
- {
- *addr = val;
- }
- __inline void pciio_pio_write16(uint16_t val, volatile uint16_t *addr)
- {
- *addr = val;
- }
- __inline void pciio_pio_write32(uint32_t val, volatile uint32_t *addr)
- {
- *addr = val;
- }
- __inline void pciio_pio_write64(uint64_t val, volatile uint64_t *addr)
- {
- *addr = val;
- }
- #endif /* USE_PCI_PIO */
- #endif /* LATER */
- /* Generic PCI dma interfaces */
- extern devfs_handle_t pciio_dma_dev_get(pciio_dmamap_t pciio_dmamap);
- /* Register/unregister PCI providers and get implementation handle */
- extern void pciio_provider_register(devfs_handle_t provider, pciio_provider_t *pciio_fns);
- extern void pciio_provider_unregister(devfs_handle_t provider);
- extern pciio_provider_t *pciio_provider_fns_get(devfs_handle_t provider);
- /* Generic pci slot information access interface */
- extern pciio_info_t pciio_info_chk(devfs_handle_t vhdl);
- extern pciio_info_t pciio_info_get(devfs_handle_t vhdl);
- extern void pciio_info_set(devfs_handle_t vhdl, pciio_info_t widget_info);
- extern devfs_handle_t pciio_info_dev_get(pciio_info_t pciio_info);
- extern pciio_bus_t pciio_info_bus_get(pciio_info_t pciio_info);
- extern pciio_slot_t pciio_info_slot_get(pciio_info_t pciio_info);
- extern pciio_function_t pciio_info_function_get(pciio_info_t pciio_info);
- extern pciio_vendor_id_t pciio_info_vendor_id_get(pciio_info_t pciio_info);
- extern pciio_device_id_t pciio_info_device_id_get(pciio_info_t pciio_info);
- extern devfs_handle_t pciio_info_master_get(pciio_info_t pciio_info);
- extern arbitrary_info_t pciio_info_mfast_get(pciio_info_t pciio_info);
- extern pciio_provider_t *pciio_info_pops_get(pciio_info_t pciio_info);
- extern error_handler_f *pciio_info_efunc_get(pciio_info_t);
- extern error_handler_arg_t *pciio_info_einfo_get(pciio_info_t);
- extern pciio_space_t pciio_info_bar_space_get(pciio_info_t, int);
- extern iopaddr_t pciio_info_bar_base_get(pciio_info_t, int);
- extern size_t pciio_info_bar_size_get(pciio_info_t, int);
- extern iopaddr_t pciio_info_rom_base_get(pciio_info_t);
- extern size_t pciio_info_rom_size_get(pciio_info_t);
- extern int pciio_error_handler(devfs_handle_t, int, ioerror_mode_t, ioerror_t *);
- extern int pciio_dma_enabled(devfs_handle_t);
- #ifdef __cplusplus
- };
- #endif
- #endif /* C or C++ */
- #endif /* _ASM_SN_PCI_PCIIO_H */