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Diffstat (limited to 'drivers/ieee1394/nodemgr.h')
| -rw-r--r-- | drivers/ieee1394/nodemgr.h | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/drivers/ieee1394/nodemgr.h b/drivers/ieee1394/nodemgr.h new file mode 100644 index 0000000..4f287a3 --- /dev/null +++ b/drivers/ieee1394/nodemgr.h @@ -0,0 +1,171 @@ +/* + * Copyright (C) 2000 Andreas E. Bombe + * 2001 Ben Collins <bcollins@debian.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifndef _IEEE1394_NODEMGR_H +#define _IEEE1394_NODEMGR_H + +#include <linux/device.h> +#include <asm/types.h> + +#include "ieee1394_core.h" +#include "ieee1394_types.h" + +struct csr1212_csr; +struct csr1212_keyval; +struct hpsb_host; +struct ieee1394_device_id; + +/* '1' '3' '9' '4' in ASCII */ +#define IEEE1394_BUSID_MAGIC __constant_cpu_to_be32(0x31333934) + +/* This is the start of a Node entry structure. It should be a stable API + * for which to gather info from the Node Manager about devices attached + * to the bus. */ +struct bus_options { + u8 irmc; /* Iso Resource Manager Capable */ + u8 cmc; /* Cycle Master Capable */ + u8 isc; /* Iso Capable */ + u8 bmc; /* Bus Master Capable */ + u8 pmc; /* Power Manager Capable (PNP spec) */ + u8 cyc_clk_acc; /* Cycle clock accuracy */ + u8 max_rom; /* Maximum block read supported in the CSR */ + u8 generation; /* Incremented when configrom changes */ + u8 lnkspd; /* Link speed */ + u16 max_rec; /* Maximum packet size node can receive */ +}; + +#define UNIT_DIRECTORY_VENDOR_ID 0x01 +#define UNIT_DIRECTORY_MODEL_ID 0x02 +#define UNIT_DIRECTORY_SPECIFIER_ID 0x04 +#define UNIT_DIRECTORY_VERSION 0x08 +#define UNIT_DIRECTORY_HAS_LUN_DIRECTORY 0x10 +#define UNIT_DIRECTORY_LUN_DIRECTORY 0x20 +#define UNIT_DIRECTORY_HAS_LUN 0x40 + +/* + * A unit directory corresponds to a protocol supported by the + * node. If a node supports eg. IP/1394 and AV/C, its config rom has a + * unit directory for each of these protocols. + */ +struct unit_directory { + struct node_entry *ne; /* The node which this directory belongs to */ + octlet_t address; /* Address of the unit directory on the node */ + u8 flags; /* Indicates which entries were read */ + + quadlet_t vendor_id; + struct csr1212_keyval *vendor_name_kv; + + quadlet_t model_id; + struct csr1212_keyval *model_name_kv; + quadlet_t specifier_id; + quadlet_t version; + quadlet_t directory_id; + + unsigned int id; + + int ignore_driver; + + int length; /* Number of quadlets */ + + struct device device; + struct device unit_dev; + + struct csr1212_keyval *ud_kv; + u32 lun; /* logical unit number immediate value */ +}; + +struct node_entry { + u64 guid; /* GUID of this node */ + u32 guid_vendor_id; /* Top 24bits of guid */ + + struct hpsb_host *host; /* Host this node is attached to */ + nodeid_t nodeid; /* NodeID */ + struct bus_options busopt; /* Bus Options */ + bool needs_probe; + unsigned int generation; /* Synced with hpsb generation */ + + /* The following is read from the config rom */ + u32 vendor_id; + struct csr1212_keyval *vendor_name_kv; + + u32 capabilities; + + struct device device; + struct device node_dev; + + /* Means this node is not attached anymore */ + bool in_limbo; + + struct csr1212_csr *csr; +}; + +struct hpsb_protocol_driver { + /* The name of the driver, e.g. SBP2 or IP1394 */ + const char *name; + + /* + * The device id table describing the protocols and/or devices + * supported by this driver. This is used by the nodemgr to + * decide if a driver could support a given node, but the + * probe function below can implement further protocol + * dependent or vendor dependent checking. + */ + struct ieee1394_device_id *id_table; + + /* + * The update function is called when the node has just + * survived a bus reset, i.e. it is still present on the bus. + * However, it may be necessary to reestablish the connection + * or login into the node again, depending on the protocol. If the + * probe fails (returns non-zero), we unbind the driver from this + * device. + */ + int (*update)(struct unit_directory *ud); + + /* Our LDM structure */ + struct device_driver driver; +}; + +int __hpsb_register_protocol(struct hpsb_protocol_driver *, struct module *); +static inline int hpsb_register_protocol(struct hpsb_protocol_driver *driver) +{ + return __hpsb_register_protocol(driver, THIS_MODULE); +} + +void hpsb_unregister_protocol(struct hpsb_protocol_driver *driver); + +static inline int hpsb_node_entry_valid(struct node_entry *ne) +{ + return ne->generation == get_hpsb_generation(ne->host); +} +void hpsb_node_fill_packet(struct node_entry *ne, struct hpsb_packet *packet); +int hpsb_node_write(struct node_entry *ne, u64 addr, + quadlet_t *buffer, size_t length); +int nodemgr_for_each_host(void *data, int (*cb)(struct hpsb_host *, void *)); + +int init_ieee1394_nodemgr(void); +void cleanup_ieee1394_nodemgr(void); + +/* The template for a host device */ +extern struct device nodemgr_dev_template_host; + +/* Bus attributes we export */ +extern struct bus_attribute *const fw_bus_attrs[]; + +#endif /* _IEEE1394_NODEMGR_H */ |
