X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fieee1394%2Fhosts.h;h=d553e38c95432c95d593d764472626b4e22f6a30;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=739e76840d5106716be264d4f025c9a1b351b496;hpb=9213980e6a70d8473e0ffd4b39ab5b6caaba9ff5;p=linux-2.6.git diff --git a/drivers/ieee1394/hosts.h b/drivers/ieee1394/hosts.h index 739e76840..d553e38c9 100644 --- a/drivers/ieee1394/hosts.h +++ b/drivers/ieee1394/hosts.h @@ -2,113 +2,116 @@ #define _IEEE1394_HOSTS_H #include -#include #include -#include #include +#include +#include +#include +#include -#include +struct pci_dev; +struct module; #include "ieee1394_types.h" #include "csr.h" - struct hpsb_packet; struct hpsb_iso; struct hpsb_host { - struct list_head host_list; + struct list_head host_list; - void *hostdata; + void *hostdata; - atomic_t generation; + atomic_t generation; struct sk_buff_head pending_packet_queue; struct timer_list timeout; unsigned long timeout_interval; - unsigned char iso_listen_count[64]; - - int node_count; /* number of identified nodes on this bus */ - int selfid_count; /* total number of SelfIDs received */ - int nodes_active; /* number of nodes that are actually active */ - - nodeid_t node_id; /* node ID of this host */ - nodeid_t irm_id; /* ID of this bus' isochronous resource manager */ - nodeid_t busmgr_id; /* ID of this bus' bus manager */ + unsigned char iso_listen_count[64]; - /* this nodes state */ - unsigned in_bus_reset:1; - unsigned is_shutdown:1; + int node_count; /* number of identified nodes on this bus */ + int selfid_count; /* total number of SelfIDs received */ + int nodes_active; /* number of nodes with active link layer */ - /* this nodes' duties on the bus */ - unsigned is_root:1; - unsigned is_cycmst:1; - unsigned is_irm:1; - unsigned is_busmgr:1; + nodeid_t node_id; /* node ID of this host */ + nodeid_t irm_id; /* ID of this bus' isochronous resource manager */ + nodeid_t busmgr_id; /* ID of this bus' bus manager */ - int reset_retries; - quadlet_t *topology_map; - u8 *speed_map; - struct csr_control csr; + /* this nodes state */ + unsigned in_bus_reset:1; + unsigned is_shutdown:1; + unsigned resume_packet_sent:1; - /* Per node tlabel pool allocation */ - struct hpsb_tlabel_pool tpool[64]; + /* this nodes' duties on the bus */ + unsigned is_root:1; + unsigned is_cycmst:1; + unsigned is_irm:1; + unsigned is_busmgr:1; - struct hpsb_host_driver *driver; - - struct pci_dev *pdev; + int reset_retries; + quadlet_t *topology_map; + u8 *speed_map; int id; - + struct hpsb_host_driver *driver; + struct pci_dev *pdev; struct device device; struct class_device class_dev; int update_config_rom; - struct work_struct delayed_reset; - + struct delayed_work delayed_reset; unsigned int config_roms; struct list_head addr_space; -}; + u64 low_addr_space; /* upper bound of physical DMA area */ + u64 middle_addr_space; /* upper bound of posted write area */ + + u8 speed[ALL_NODES]; /* speed between each node and local node */ + /* per node tlabel allocation */ + u8 next_tl[ALL_NODES]; + struct { DECLARE_BITMAP(map, 64); } tl_pool[ALL_NODES]; + struct csr_control csr; +}; enum devctl_cmd { - /* Host is requested to reset its bus and cancel all outstanding async - * requests. If arg == 1, it shall also attempt to become root on the - * bus. Return void. */ - RESET_BUS, - - /* Arg is void, return value is the hardware cycle counter value. */ - GET_CYCLE_COUNTER, - - /* Set the hardware cycle counter to the value in arg, return void. - * FIXME - setting is probably not required. */ - SET_CYCLE_COUNTER, - - /* Configure hardware for new bus ID in arg, return void. */ - SET_BUS_ID, - - /* If arg true, start sending cycle start packets, stop if arg == 0. - * Return void. */ - ACT_CYCLE_MASTER, - - /* Cancel all outstanding async requests without resetting the bus. - * Return void. */ - CANCEL_REQUESTS, - - /* Start or stop receiving isochronous channel in arg. Return void. - * This acts as an optimization hint, hosts are not required not to - * listen on unrequested channels. */ - ISO_LISTEN_CHANNEL, - ISO_UNLISTEN_CHANNEL + /* Host is requested to reset its bus and cancel all outstanding async + * requests. If arg == 1, it shall also attempt to become root on the + * bus. Return void. */ + RESET_BUS, + + /* Arg is void, return value is the hardware cycle counter value. */ + GET_CYCLE_COUNTER, + + /* Set the hardware cycle counter to the value in arg, return void. + * FIXME - setting is probably not required. */ + SET_CYCLE_COUNTER, + + /* Configure hardware for new bus ID in arg, return void. */ + SET_BUS_ID, + + /* If arg true, start sending cycle start packets, stop if arg == 0. + * Return void. */ + ACT_CYCLE_MASTER, + + /* Cancel all outstanding async requests without resetting the bus. + * Return void. */ + CANCEL_REQUESTS, + + /* Start or stop receiving isochronous channel in arg. Return void. + * This acts as an optimization hint, hosts are not required not to + * listen on unrequested channels. */ + ISO_LISTEN_CHANNEL, + ISO_UNLISTEN_CHANNEL }; enum isoctl_cmd { /* rawiso API - see iso.h for the meanings of these commands - (they correspond exactly to the hpsb_iso_* API functions) + * (they correspond exactly to the hpsb_iso_* API functions) * INIT = allocate resources * START = begin transmission/reception * STOP = halt transmission/reception @@ -134,18 +137,18 @@ enum isoctl_cmd { }; enum reset_types { - /* 166 microsecond reset -- only type of reset available on - non-1394a capable IEEE 1394 controllers */ - LONG_RESET, + /* 166 microsecond reset -- only type of reset available on + non-1394a capable controllers */ + LONG_RESET, - /* Short (arbitrated) reset -- only available on 1394a capable - IEEE 1394 capable controllers */ - SHORT_RESET, + /* Short (arbitrated) reset -- only available on 1394a capable + controllers */ + SHORT_RESET, - /* Variants, that set force_root before issueing the bus reset */ + /* Variants that set force_root before issueing the bus reset */ LONG_RESET_FORCE_ROOT, SHORT_RESET_FORCE_ROOT, - /* Variants, that clear force_root before issueing the bus reset */ + /* Variants that clear force_root before issueing the bus reset */ LONG_RESET_NO_FORCE_ROOT, SHORT_RESET_NO_FORCE_ROOT }; @@ -156,55 +159,49 @@ struct hpsb_host_driver { /* The hardware driver may optionally support a function that is used * to set the hardware ConfigROM if the hardware supports handling * reads to the ConfigROM on its own. */ - void (*set_hw_config_rom) (struct hpsb_host *host, quadlet_t *config_rom); - - /* This function shall implement packet transmission based on - * packet->type. It shall CRC both parts of the packet (unless - * packet->type == raw) and do byte-swapping as necessary or instruct - * the hardware to do so. It can return immediately after the packet - * was queued for sending. After sending, hpsb_sent_packet() has to be - * called. Return 0 on success, negative errno on failure. - * NOTE: The function must be callable in interrupt context. - */ - int (*transmit_packet) (struct hpsb_host *host, - struct hpsb_packet *packet); - - /* This function requests miscellanous services from the driver, see - * above for command codes and expected actions. Return -1 for unknown - * command, though that should never happen. - */ - int (*devctl) (struct hpsb_host *host, enum devctl_cmd command, int arg); + void (*set_hw_config_rom)(struct hpsb_host *host, + quadlet_t *config_rom); + + /* This function shall implement packet transmission based on + * packet->type. It shall CRC both parts of the packet (unless + * packet->type == raw) and do byte-swapping as necessary or instruct + * the hardware to do so. It can return immediately after the packet + * was queued for sending. After sending, hpsb_sent_packet() has to be + * called. Return 0 on success, negative errno on failure. + * NOTE: The function must be callable in interrupt context. + */ + int (*transmit_packet)(struct hpsb_host *host, + struct hpsb_packet *packet); + + /* This function requests miscellanous services from the driver, see + * above for command codes and expected actions. Return -1 for unknown + * command, though that should never happen. + */ + int (*devctl)(struct hpsb_host *host, enum devctl_cmd command, int arg); /* ISO transmission/reception functions. Return 0 on success, -1 * (or -EXXX errno code) on failure. If the low-level driver does not * support the new ISO API, set isoctl to NULL. */ - int (*isoctl) (struct hpsb_iso *iso, enum isoctl_cmd command, unsigned long arg); - - /* This function is mainly to redirect local CSR reads/locks to the iso - * management registers (bus manager id, bandwidth available, channels - * available) to the hardware registers in OHCI. reg is 0,1,2,3 for bus - * mgr, bwdth avail, ch avail hi, ch avail lo respectively (the same ids - * as OHCI uses). data and compare are the new data and expected data - * respectively, return value is the old value. - */ - quadlet_t (*hw_csr_reg) (struct hpsb_host *host, int reg, - quadlet_t data, quadlet_t compare); + int (*isoctl)(struct hpsb_iso *iso, enum isoctl_cmd command, + unsigned long arg); + + /* This function is mainly to redirect local CSR reads/locks to the iso + * management registers (bus manager id, bandwidth available, channels + * available) to the hardware registers in OHCI. reg is 0,1,2,3 for bus + * mgr, bwdth avail, ch avail hi, ch avail lo respectively (the same ids + * as OHCI uses). data and compare are the new data and expected data + * respectively, return value is the old value. + */ + quadlet_t (*hw_csr_reg) (struct hpsb_host *host, int reg, + quadlet_t data, quadlet_t compare); }; - struct hpsb_host *hpsb_alloc_host(struct hpsb_host_driver *drv, size_t extra, struct device *dev); int hpsb_add_host(struct hpsb_host *host); void hpsb_remove_host(struct hpsb_host *h); -/* The following 2 functions are deprecated and will be removed when the - * raw1394/libraw1394 update is complete. */ -int hpsb_update_config_rom(struct hpsb_host *host, - const quadlet_t *new_rom, size_t size, unsigned char rom_version); -int hpsb_get_config_rom(struct hpsb_host *host, quadlet_t *buffer, - size_t buffersize, size_t *rom_size, unsigned char *rom_version); - /* Updates the configuration rom image of a host. rom_version must be the * current version, otherwise it will fail with return value -1. If this * host does not support config-rom-update, it will return -EINVAL.