rio_get_asm – Begin or continue searching for a RIO device by vid/did/asm_vid/asm_did Synopsis struct rio_dev * rio_get_asm(u16 vid, u16 did, u16 asm_vid, u16 asm_did, struct rio_dev * from); Arguments vid RIO vid to match or RIO_ANY_ID to match all vids did RIO did to match or RIO_ANY_ID to match all dids asm_vid RIO asm_vid to match or RIO_ANY_ID to match all…
rio_find_mport – find RIO mport by its ID Synopsis struct rio_mport *rio_find_mport(int mport_id); Arguments mport_id number (ID) of mport device Description Given a RIO mport number, the desired mport is located in the global list of mports. If the mport is found, a pointer to its data structure is returned. If no mport is found,…
rio_enum_peer – Recursively enumerate a RIO network through a master port Synopsis int rio_enum_peer(struct rio_net *net, struct rio_mport *port, u8 hopcount, struct rio_dev *prev, int prev_port); Arguments net RIO network being enumerated port Master port to send transactions hopcount Number of hops into the network prev Previous RIO device connected to the enumerated one prev_port…
rio_enum_mport – Start enumeration through a master port Synopsis int rio_enum_mport(struct rio_mport *mport, u32 flags); Arguments mport Master port to send transactions flags Enumeration control flags Description Starts the enumeration process. If somebody has enumerated our master port device, then give up. If not and we have an active link, then start recursive peer enumeration….
rio_enum_host – Set host lock and initialize host destination ID Synopsis int rio_enum_host(struct rio_mport *port); Arguments port Master port to issue transaction Description Sets the local host master port lock and destination ID register with the host device ID value. The host device ID value is provided by the platform. Returns 0 on success or…
rio_enum_complete – Tests if enumeration of a network is complete Synopsis int rio_enum_complete(struct rio_mport *port); Arguments port Master port to send transaction Description Tests the PGCCSR discovered bit for non-zero value (enumeration complete flag). Return 1 if enumeration is complete or 0 if enumeration is incomplete. Author Matt Porter <mporter [at] kernel.crashing.org>, <mporter [at] mvista.com>…
rio_enable_rx_tx_port – enable input receiver and output transmitter of given port Synopsis int rio_enable_rx_tx_port(struct rio_mport *port, int local, u16 destid, u8 hopcount, u8 port_num); Arguments port Master port associated with the RIO network local local=1 select local port otherwise a far device is reached destid Destination ID of the device to check host bit hopcount…
rio_dma_prep_xfer – RapidIO specific wrapper for device_prep_slave_sg callback defined by DMAENGINE. Synopsis 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); Arguments dchan DMA channel to configure destid target RapidIO device destination ID data RIO specific data descriptor direction DMA data transfer direction (TO or FROM the device)…
rio_dma_prep_slave_sg – RapidIO specific wrapper for device_prep_slave_sg callback defined by DMAENGINE. Synopsis struct dma_async_tx_descriptor *rio_dma_prep_slave_sg(struct rio_dev *rdev, struct dma_chan *dchan, struct rio_dma_data *data, enum dma_transfer_direction direction, unsigned long flags); Arguments rdev RIO device control structure dchan DMA channel to configure data RIO specific data descriptor direction DMA data transfer direction (TO or FROM the device)…
rio_disc_peer – Recursively discovers a RIO network through a master port Synopsis int rio_disc_peer(struct rio_net *net, struct rio_mport *port, u16 destid, u8 hopcount, struct rio_dev *prev, int prev_port); Arguments net RIO network being discovered port Master port to send transactions destid Current destination ID in network hopcount Number of hops into the network prev previous…
rio_disc_mport – Start discovery through a master port Synopsis int rio_disc_mport(struct rio_mport *mport, u32 flags); Arguments mport Master port to send transactions flags discovery control flags Description Starts the discovery process. If we have an active link, then wait for the signal that enumeration is complete (if wait is allowed). When enumeration completion is signaled,…
rio_device_remove – Remove a RIO device from the system Synopsis int rio_device_remove(struct device *dev); Arguments dev the RIO device structure to match against Description Remove a RIO device from the system. If it has an associated driver, then run the driver remove method. Then update the reference count. Author Matt Porter <mporter [at] kernel.crashing.org>, <mporter…
rio_device_probe – Tell if a RIO device structure has a matching RIO device id structure Synopsis int rio_device_probe(struct device *dev); Arguments dev the RIO device structure to match against Description return 0 and set rio_dev->driver when drv claims rio_dev, else error Author Matt Porter <mporter [at] kernel.crashing.org>, <mporter [at] mvista.com> Author. Copyright
rio_device_has_destid – Test if a device contains a destination ID register Synopsis int rio_device_has_destid(struct rio_mport *port, int src_ops, int dst_ops); Arguments port Master port to issue transaction src_ops RIO device source operations dst_ops RIO device destination operations Description Checks the provided src_ops and dst_ops for the necessary transaction capabilities that indicate whether or not a…
rio_dev_put – Release a use of the RIO device structure Synopsis void rio_dev_put(struct rio_dev *rdev); Arguments rdev RIO device being disconnected Description Must be called when a user of a device is finished with it. When the last user of the device calls this function, the memory of the device is freed. Author Matt Porter…
rio_dev_get – Increments the reference count of the RIO device structure Synopsis struct rio_dev *rio_dev_get(struct rio_dev *rdev); Arguments rdev RIO device being referenced Description Each live reference to a device should be refcounted. Drivers for RIO devices should normally record such references in their probe methods, when they bind to a device, and release them…
rio_destid_reserve – Reserve the specivied destID Synopsis int rio_destid_reserve(struct rio_net *net, u16 destid); Arguments net RIO network destid destID to reserve Description Tries to reserve the specified destID. Returns 0 if successful. Author Matt Porter <mporter [at] kernel.crashing.org>, <mporter [at] mvista.com> Author. Copyright
rio_destid_next – return next destID in use Synopsis u16 rio_destid_next(struct rio_net * net, u16 from); Arguments net RIO network from destination ID from which search shall continue Author Matt Porter <mporter [at] kernel.crashing.org>, <mporter [at] mvista.com> Author. Copyright
rio_destid_free – free a previously allocated destID Synopsis void rio_destid_free(struct rio_net *net, u16 destid); Arguments net RIO network destid destID to free Description Makes the specified destID available for use. Author Matt Porter <mporter [at] kernel.crashing.org>, <mporter [at] mvista.com> Author. Copyright
rio_destid_first – return first destID in use Synopsis u16 rio_destid_first(struct rio_net * net); Arguments net RIO network Author Matt Porter <mporter [at] kernel.crashing.org>, <mporter [at] mvista.com> Author. Copyright