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];
+ 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 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 */
+ 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 */
- /* this nodes state */
- unsigned in_bus_reset:1;
- unsigned is_shutdown:1;
+ /* this nodes state */
+ unsigned in_bus_reset:1;
+ unsigned is_shutdown:1;
+ unsigned resume_packet_sent:1;
- /* this nodes' duties on the bus */
- unsigned is_root:1;
- unsigned is_cycmst:1;
- unsigned is_irm:1;
- unsigned is_busmgr:1;
+ /* this nodes' duties on the bus */
+ unsigned is_root:1;
+ unsigned is_cycmst:1;
+ unsigned is_irm:1;
+ unsigned is_busmgr:1;
- int reset_retries;
- quadlet_t *topology_map;
- u8 *speed_map;
- struct csr_control csr;
+ int reset_retries;
+ quadlet_t *topology_map;
+ u8 *speed_map;
+ struct csr_control csr;
/* Per node tlabel pool allocation */
struct hpsb_tlabel_pool tpool[64];
- struct hpsb_host_driver *driver;
+ struct hpsb_host_driver *driver;
struct pci_dev *pdev;
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 {
};
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
};
* 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);
+ /* 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
*/
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);
+ /* 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);
};
git://git.onelab.eu / linux-2.6.git / blobdiff