Something went wrong. Try again.
(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
Something went wrong. Try again.
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445/* SPDX-License-Identifier: GPL-2.0-or-later *//* * RapidIO driver services * * Copyright 2005 MontaVista Software, Inc. * Matt Porter <mporter@kernel.crashing.org> */
#ifndef LINUX_RIO_DRV_H#define LINUX_RIO_DRV_H
#include <linux/types.h>#include <linux/ioport.h>#include <linux/list.h>#include <linux/errno.h>#include <linux/string.h>#include <linux/rio.h>
extern int __rio_local_read_config_32(struct rio_mport *port, u32 offset, u32 * data);extern int __rio_local_write_config_32(struct rio_mport *port, u32 offset, u32 data);extern int __rio_local_read_config_16(struct rio_mport *port, u32 offset, u16 * data);extern int __rio_local_write_config_16(struct rio_mport *port, u32 offset, u16 data);extern int __rio_local_read_config_8(struct rio_mport *port, u32 offset, u8 * data);extern int __rio_local_write_config_8(struct rio_mport *port, u32 offset, u8 data);
extern int rio_mport_read_config_32(struct rio_mport *port, u16 destid, u8 hopcount, u32 offset, u32 * data);extern int rio_mport_write_config_32(struct rio_mport *port, u16 destid, u8 hopcount, u32 offset, u32 data);extern int rio_mport_read_config_16(struct rio_mport *port, u16 destid, u8 hopcount, u32 offset, u16 * data);extern int rio_mport_write_config_16(struct rio_mport *port, u16 destid, u8 hopcount, u32 offset, u16 data);extern int rio_mport_read_config_8(struct rio_mport *port, u16 destid, u8 hopcount, u32 offset, u8 * data);extern int rio_mport_write_config_8(struct rio_mport *port, u16 destid, u8 hopcount, u32 offset, u8 data);
/** * rio_local_read_config_32 - Read 32 bits from local configuration space * @port: Master port * @offset: Offset into local configuration space * @data: Pointer to read data into * * Reads 32 bits of data from the specified offset within the local * device's configuration space. */static inline int rio_local_read_config_32(struct rio_mport *port, u32 offset, u32 * data){ return __rio_local_read_config_32(port, offset, data);}
/** * rio_local_write_config_32 - Write 32 bits to local configuration space * @port: Master port * @offset: Offset into local configuration space * @data: Data to be written * * Writes 32 bits of data to the specified offset within the local * device's configuration space. */static inline int rio_local_write_config_32(struct rio_mport *port, u32 offset, u32 data){ return __rio_local_write_config_32(port, offset, data);}
/** * rio_local_read_config_16 - Read 16 bits from local configuration space * @port: Master port * @offset: Offset into local configuration space * @data: Pointer to read data into * * Reads 16 bits of data from the specified offset within the local * device's configuration space. */static inline int rio_local_read_config_16(struct rio_mport *port, u32 offset, u16 * data){ return __rio_local_read_config_16(port, offset, data);}
/** * rio_local_write_config_16 - Write 16 bits to local configuration space * @port: Master port * @offset: Offset into local configuration space * @data: Data to be written * * Writes 16 bits of data to the specified offset within the local * device's configuration space. */
static inline int rio_local_write_config_16(struct rio_mport *port, u32 offset, u16 data){ return __rio_local_write_config_16(port, offset, data);}
/** * rio_local_read_config_8 - Read 8 bits from local configuration space * @port: Master port * @offset: Offset into local configuration space * @data: Pointer to read data into * * Reads 8 bits of data from the specified offset within the local * device's configuration space. */static inline int rio_local_read_config_8(struct rio_mport *port, u32 offset, u8 * data){ return __rio_local_read_config_8(port, offset, data);}
/** * rio_local_write_config_8 - Write 8 bits to local configuration space * @port: Master port * @offset: Offset into local configuration space * @data: Data to be written * * Writes 8 bits of data to the specified offset within the local * device's configuration space. */static inline int rio_local_write_config_8(struct rio_mport *port, u32 offset, u8 data){ return __rio_local_write_config_8(port, offset, data);}
/** * rio_read_config_32 - Read 32 bits from configuration space * @rdev: RIO device * @offset: Offset into device configuration space * @data: Pointer to read data into * * Reads 32 bits of data from the specified offset within the * RIO device's configuration space. */static inline int rio_read_config_32(struct rio_dev *rdev, u32 offset, u32 * data){ return rio_mport_read_config_32(rdev->net->hport, rdev->destid, rdev->hopcount, offset, data);};
/** * rio_write_config_32 - Write 32 bits to configuration space * @rdev: RIO device * @offset: Offset into device configuration space * @data: Data to be written * * Writes 32 bits of data to the specified offset within the * RIO device's configuration space. */static inline int rio_write_config_32(struct rio_dev *rdev, u32 offset, u32 data){ return rio_mport_write_config_32(rdev->net->hport, rdev->destid, rdev->hopcount, offset, data);};
/** * rio_read_config_16 - Read 16 bits from configuration space * @rdev: RIO device * @offset: Offset into device configuration space * @data: Pointer to read data into * * Reads 16 bits of data from the specified offset within the * RIO device's configuration space. */static inline int rio_read_config_16(struct rio_dev *rdev, u32 offset, u16 * data){ return rio_mport_read_config_16(rdev->net->hport, rdev->destid, rdev->hopcount, offset, data);};
/** * rio_write_config_16 - Write 16 bits to configuration space * @rdev: RIO device * @offset: Offset into device configuration space * @data: Data to be written * * Writes 16 bits of data to the specified offset within the * RIO device's configuration space. */static inline int rio_write_config_16(struct rio_dev *rdev, u32 offset, u16 data){ return rio_mport_write_config_16(rdev->net->hport, rdev->destid, rdev->hopcount, offset, data);};
/** * rio_read_config_8 - Read 8 bits from configuration space * @rdev: RIO device * @offset: Offset into device configuration space * @data: Pointer to read data into * * Reads 8 bits of data from the specified offset within the * RIO device's configuration space. */static inline int rio_read_config_8(struct rio_dev *rdev, u32 offset, u8 * data){ return rio_mport_read_config_8(rdev->net->hport, rdev->destid, rdev->hopcount, offset, data);};
/** * rio_write_config_8 - Write 8 bits to configuration space * @rdev: RIO device * @offset: Offset into device configuration space * @data: Data to be written * * Writes 8 bits of data to the specified offset within the * RIO device's configuration space. */static inline int rio_write_config_8(struct rio_dev *rdev, u32 offset, u8 data){ return rio_mport_write_config_8(rdev->net->hport, rdev->destid, rdev->hopcount, offset, data);};
extern int rio_mport_send_doorbell(struct rio_mport *mport, u16 destid, u16 data);
/** * rio_send_doorbell - Send a doorbell message to a device * @rdev: RIO device * @data: Doorbell message data * * Send a doorbell message to a RIO device. The doorbell message * has a 16-bit info field provided by the @data argument. */static inline int rio_send_doorbell(struct rio_dev *rdev, u16 data){ return rio_mport_send_doorbell(rdev->net->hport, rdev->destid, data);};
/** * rio_init_mbox_res - Initialize a RIO mailbox resource * @res: resource struct * @start: start of mailbox range * @end: end of mailbox range * * This function is used to initialize the fields of a resource * for use as a mailbox resource. It initializes a range of * mailboxes using the start and end arguments. */static inline void rio_init_mbox_res(struct resource *res, int start, int end){ memset(res, 0, sizeof(struct resource)); res->start = start; res->end = end; res->flags = RIO_RESOURCE_MAILBOX;}
/** * rio_init_dbell_res - Initialize a RIO doorbell resource * @res: resource struct * @start: start of doorbell range * @end: end of doorbell range * * This function is used to initialize the fields of a resource * for use as a doorbell resource. It initializes a range of * doorbell messages using the start and end arguments. */static inline void rio_init_dbell_res(struct resource *res, u16 start, u16 end){ memset(res, 0, sizeof(struct resource)); res->start = start; res->end = end; res->flags = RIO_RESOURCE_DOORBELL;}
/** * RIO_DEVICE - macro used to describe a specific RIO device * @dev: the 16 bit RIO device ID * @ven: the 16 bit RIO vendor ID * * This macro is used to create a struct rio_device_id that matches a * specific device. The assembly vendor and assembly device fields * will be set to %RIO_ANY_ID. */#define RIO_DEVICE(dev,ven) \ .did = (dev), .vid = (ven), \ .asm_did = RIO_ANY_ID, .asm_vid = RIO_ANY_ID
/* Mailbox management */extern int rio_request_outb_mbox(struct rio_mport *, void *, int, int, void (*)(struct rio_mport *, void *,int, int));extern int rio_release_outb_mbox(struct rio_mport *, int);
/** * rio_add_outb_message - Add RIO message to an outbound mailbox queue * @mport: RIO master port containing the outbound queue * @rdev: RIO device the message is be sent to * @mbox: The outbound mailbox queue * @buffer: Pointer to the message buffer * @len: Length of the message buffer * * Adds a RIO message buffer to an outbound mailbox queue for * transmission. Returns 0 on success. */static inline int rio_add_outb_message(struct rio_mport *mport, struct rio_dev *rdev, int mbox, void *buffer, size_t len){ return mport->ops->add_outb_message(mport, rdev, mbox, buffer, len);}
extern int rio_request_inb_mbox(struct rio_mport *, void *, int, int, void (*)(struct rio_mport *, void *, int, int));extern int rio_release_inb_mbox(struct rio_mport *, int);
/** * rio_add_inb_buffer - Add buffer to an inbound mailbox queue * @mport: Master port containing the inbound mailbox * @mbox: The inbound mailbox number * @buffer: Pointer to the message buffer * * Adds a buffer to an inbound mailbox queue for reception. Returns * 0 on success. */static inline int rio_add_inb_buffer(struct rio_mport *mport, int mbox, void *buffer){ return mport->ops->add_inb_buffer(mport, mbox, buffer);}
/** * rio_get_inb_message - Get A RIO message from an inbound mailbox queue * @mport: Master port containing the inbound mailbox * @mbox: The inbound mailbox number * * Get a RIO message from an inbound mailbox queue. Returns 0 on success. */static inline void *rio_get_inb_message(struct rio_mport *mport, int mbox){ return mport->ops->get_inb_message(mport, mbox);}
/* Doorbell management */extern int rio_request_inb_dbell(struct rio_mport *, void *, u16, u16, void (*)(struct rio_mport *, void *, u16, u16, u16));extern int rio_release_inb_dbell(struct rio_mport *, u16, u16);extern struct resource *rio_request_outb_dbell(struct rio_dev *, u16, u16);extern int rio_release_outb_dbell(struct rio_dev *, struct resource *);
/* Memory region management */int rio_claim_resource(struct rio_dev *, int);int rio_request_regions(struct rio_dev *, char *);void rio_release_regions(struct rio_dev *);int rio_request_region(struct rio_dev *, int, char *);void rio_release_region(struct rio_dev *, int);
/* Memory mapping functions */extern int rio_map_inb_region(struct rio_mport *mport, dma_addr_t local, u64 rbase, u32 size, u32 rflags);extern void rio_unmap_inb_region(struct rio_mport *mport, dma_addr_t lstart);extern int rio_map_outb_region(struct rio_mport *mport, u16 destid, u64 rbase, u32 size, u32 rflags, dma_addr_t *local);extern void rio_unmap_outb_region(struct rio_mport *mport, u16 destid, u64 rstart);
/* Port-Write management */extern int rio_request_inb_pwrite(struct rio_dev *, int (*)(struct rio_dev *, union rio_pw_msg*, int));extern int rio_release_inb_pwrite(struct rio_dev *);extern int rio_add_mport_pw_handler(struct rio_mport *mport, void *dev_id, int (*pwcback)(struct rio_mport *mport, void *dev_id, union rio_pw_msg *msg, int step));extern int rio_del_mport_pw_handler(struct rio_mport *mport, void *dev_id, int (*pwcback)(struct rio_mport *mport, void *dev_id, union rio_pw_msg *msg, int step));extern int rio_inb_pwrite_handler(struct rio_mport *mport, union rio_pw_msg *pw_msg);extern void rio_pw_enable(struct rio_mport *mport, int enable);
/* LDM support */int rio_register_driver(struct rio_driver *);void rio_unregister_driver(struct rio_driver *);struct rio_dev *rio_dev_get(struct rio_dev *);void rio_dev_put(struct rio_dev *);
#ifdef CONFIG_RAPIDIO_DMA_ENGINEextern struct dma_chan *rio_request_mport_dma(struct rio_mport *mport);extern void rio_release_dma(struct dma_chan *dchan);extern struct dma_async_tx_descriptor *rio_dma_prep_xfer( struct dma_chan *dchan, u16 destid, struct rio_dma_data *data, enum dma_transfer_direction direction, unsigned long flags);#endif
/** * rio_name - Get the unique RIO device identifier * @rdev: RIO device * * Get the unique RIO device identifier. Returns the device * identifier string. */static inline const char *rio_name(struct rio_dev *rdev){ return dev_name(&rdev->dev);}
/** * rio_get_drvdata - Get RIO driver specific data * @rdev: RIO device * * Get RIO driver specific data. Returns a pointer to the * driver specific data. */static inline void *rio_get_drvdata(struct rio_dev *rdev){ return dev_get_drvdata(&rdev->dev);}
/** * rio_set_drvdata - Set RIO driver specific data * @rdev: RIO device * @data: Pointer to driver specific data * * Set RIO driver specific data. device struct driver data pointer * is set to the @data argument. */static inline void rio_set_drvdata(struct rio_dev *rdev, void *data){ dev_set_drvdata(&rdev->dev, data);}
/* Misc driver helpers */extern u16 rio_local_get_device_id(struct rio_mport *port);extern void rio_local_set_device_id(struct rio_mport *port, u16 did);extern int rio_init_mports(void);
#endif /* LINUX_RIO_DRV_H */