| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Iñaky Pérez-González | 1045 | 69.81% | 1 | 8.33% |
| Stefano Panella | 363 | 24.25% | 3 | 25.00% |
| David Vrabel | 74 | 4.94% | 4 | 33.33% |
| Thomas Pugliese | 9 | 0.60% | 2 | 16.67% |
| Kees Cook | 4 | 0.27% | 1 | 8.33% |
| Greg Kroah-Hartman | 2 | 0.13% | 1 | 8.33% |
| Total | 1497 | 12 |
/* * Ultra Wide Band * UWB internal API * * Copyright (C) 2005-2006 Intel Corporation * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License version * 2 as published by the Free Software Foundation. * * 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., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA. * * This contains most of the internal API for UWB. This is stuff used * across the stack that of course, is of no interest to the rest. * * Some parts might end up going public (like uwb_rc_*())... */ #ifndef __UWB_INTERNAL_H__ #define __UWB_INTERNAL_H__ #include <linux/kernel.h> #include <linux/device.h> #include <linux/uwb.h> #include <linux/mutex.h> struct uwb_beca_e; /* General device API */ extern void uwb_dev_init(struct uwb_dev *uwb_dev); extern int __uwb_dev_offair(struct uwb_dev *, struct uwb_rc *); extern int uwb_dev_add(struct uwb_dev *uwb_dev, struct device *parent_dev, struct uwb_rc *parent_rc); extern void uwb_dev_rm(struct uwb_dev *uwb_dev); extern void uwbd_dev_onair(struct uwb_rc *, struct uwb_beca_e *); extern void uwbd_dev_offair(struct uwb_beca_e *); void uwb_notify(struct uwb_rc *rc, struct uwb_dev *uwb_dev, enum uwb_notifs event); /* General UWB Radio Controller Internal API */ extern struct uwb_rc *__uwb_rc_try_get(struct uwb_rc *); static inline struct uwb_rc *__uwb_rc_get(struct uwb_rc *rc) { uwb_dev_get(&rc->uwb_dev); return rc; } static inline void __uwb_rc_put(struct uwb_rc *rc) { if (rc) uwb_dev_put(&rc->uwb_dev); } extern int uwb_rc_reset(struct uwb_rc *rc); extern int uwb_rc_beacon(struct uwb_rc *rc, int channel, unsigned bpst_offset); extern int uwb_rc_scan(struct uwb_rc *rc, unsigned channel, enum uwb_scan_type type, unsigned bpst_offset); extern int uwb_rc_send_all_drp_ie(struct uwb_rc *rc); void uwb_rc_ie_init(struct uwb_rc *); int uwb_rc_ie_setup(struct uwb_rc *); void uwb_rc_ie_release(struct uwb_rc *); int uwb_ie_dump_hex(const struct uwb_ie_hdr *ies, size_t len, char *buf, size_t size); int uwb_rc_set_ie(struct uwb_rc *, struct uwb_rc_cmd_set_ie *); extern const char *uwb_rc_strerror(unsigned code); /* * Time to wait for a response to an RC command. * * Some commands can take a long time to response. e.g., START_BEACON * may scan for several superframes before joining an existing beacon * group and this can take around 600 ms. */ #define UWB_RC_CMD_TIMEOUT_MS 1000 /* ms */ /* * Notification/Event Handlers */ struct uwb_rc_neh; extern int uwb_rc_cmd_async(struct uwb_rc *rc, const char *cmd_name, struct uwb_rccb *cmd, size_t cmd_size, u8 expected_type, u16 expected_event, uwb_rc_cmd_cb_f cb, void *arg); void uwb_rc_neh_create(struct uwb_rc *rc); void uwb_rc_neh_destroy(struct uwb_rc *rc); struct uwb_rc_neh *uwb_rc_neh_add(struct uwb_rc *rc, struct uwb_rccb *cmd, u8 expected_type, u16 expected_event, uwb_rc_cmd_cb_f cb, void *arg); void uwb_rc_neh_rm(struct uwb_rc *rc, struct uwb_rc_neh *neh); void uwb_rc_neh_arm(struct uwb_rc *rc, struct uwb_rc_neh *neh); void uwb_rc_neh_put(struct uwb_rc_neh *neh); /* Event size tables */ extern int uwb_est_create(void); extern void uwb_est_destroy(void); /* * UWB conflicting alien reservations */ struct uwb_cnflt_alien { struct uwb_rc *rc; struct list_head rc_node; struct uwb_mas_bm mas; struct timer_list timer; struct work_struct cnflt_update_work; }; enum uwb_uwb_rsv_alloc_result { UWB_RSV_ALLOC_FOUND = 0, UWB_RSV_ALLOC_NOT_FOUND, }; enum uwb_rsv_mas_status { UWB_RSV_MAS_NOT_AVAIL = 1, UWB_RSV_MAS_SAFE, UWB_RSV_MAS_UNSAFE, }; struct uwb_rsv_col_set_info { unsigned char start_col; unsigned char interval; unsigned char safe_mas_per_col; unsigned char unsafe_mas_per_col; }; struct uwb_rsv_col_info { unsigned char max_avail_safe; unsigned char max_avail_unsafe; unsigned char highest_mas[UWB_MAS_PER_ZONE]; struct uwb_rsv_col_set_info csi; }; struct uwb_rsv_row_info { unsigned char avail[UWB_MAS_PER_ZONE]; unsigned char free_rows; unsigned char used_rows; }; /* * UWB find allocation */ struct uwb_rsv_alloc_info { unsigned char bm[UWB_MAS_PER_ZONE * UWB_NUM_ZONES]; struct uwb_rsv_col_info ci[UWB_NUM_ZONES]; struct uwb_rsv_row_info ri; struct uwb_mas_bm *not_available; struct uwb_mas_bm *result; int min_mas; int max_mas; int max_interval; int total_allocated_mases; int safe_allocated_mases; int unsafe_allocated_mases; int interval; }; int uwb_rsv_find_best_allocation(struct uwb_rsv *rsv, struct uwb_mas_bm *available, struct uwb_mas_bm *result); void uwb_rsv_handle_drp_avail_change(struct uwb_rc *rc); /* * UWB Events & management daemon */ /** * enum uwb_event_type - types of UWB management daemon events * * The UWB management daemon (uwbd) can receive two types of events: * UWB_EVT_TYPE_NOTIF - notification from the radio controller. * UWB_EVT_TYPE_MSG - a simple message. */ enum uwb_event_type { UWB_EVT_TYPE_NOTIF, UWB_EVT_TYPE_MSG, }; /** * struct uwb_event_notif - an event for a radio controller notification * @size: Size of the buffer (ie: Guaranteed to contain at least * a full 'struct uwb_rceb') * @rceb: Pointer to a kmalloced() event payload */ struct uwb_event_notif { size_t size; struct uwb_rceb *rceb; }; /** * enum uwb_event_message - an event for a message for asynchronous processing * * UWB_EVT_MSG_RESET - reset the radio controller and all PAL hardware. */ enum uwb_event_message { UWB_EVT_MSG_RESET, }; /** * UWB Event * @rc: Radio controller that emitted the event (referenced) * @ts_jiffies: Timestamp, when was it received * @type: This event's type. */ struct uwb_event { struct list_head list_node; struct uwb_rc *rc; unsigned long ts_jiffies; enum uwb_event_type type; union { struct uwb_event_notif notif; enum uwb_event_message message; }; }; extern void uwbd_start(struct uwb_rc *rc); extern void uwbd_stop(struct uwb_rc *rc); extern struct uwb_event *uwb_event_alloc(size_t, gfp_t gfp_mask); extern void uwbd_event_queue(struct uwb_event *); void uwbd_flush(struct uwb_rc *rc); /* UWB event handlers */ extern int uwbd_evt_handle_rc_ie_rcv(struct uwb_event *); extern int uwbd_evt_handle_rc_beacon(struct uwb_event *); extern int uwbd_evt_handle_rc_beacon_size(struct uwb_event *); extern int uwbd_evt_handle_rc_bpoie_change(struct uwb_event *); extern int uwbd_evt_handle_rc_bp_slot_change(struct uwb_event *); extern int uwbd_evt_handle_rc_drp(struct uwb_event *); extern int uwbd_evt_handle_rc_drp_avail(struct uwb_event *); int uwbd_msg_handle_reset(struct uwb_event *evt); /* * Address management */ int uwb_rc_dev_addr_assign(struct uwb_rc *rc); int uwbd_evt_handle_rc_dev_addr_conflict(struct uwb_event *evt); /* * UWB Beacon Cache * * Each beacon we received is kept in a cache--when we receive that * beacon consistently, that means there is a new device that we have * to add to the system. */ extern unsigned long beacon_timeout_ms; /** * Beacon cache entry * * @jiffies_refresh: last time a beacon was received that refreshed * this cache entry. * @uwb_dev: device connected to this beacon. This pointer is not * safe, you need to get it with uwb_dev_try_get() * * @hits: how many time we have seen this beacon since last time we * cleared it */ struct uwb_beca_e { struct mutex mutex; struct kref refcnt; struct list_head node; struct uwb_mac_addr *mac_addr; struct uwb_dev_addr dev_addr; u8 hits; unsigned long ts_jiffies; struct uwb_dev *uwb_dev; struct uwb_rc_evt_beacon *be; struct stats lqe_stats, rssi_stats; /* radio statistics */ }; struct uwb_beacon_frame; extern ssize_t uwb_bce_print_IEs(struct uwb_dev *, struct uwb_beca_e *, char *, size_t); extern void uwb_bce_kfree(struct kref *_bce); static inline void uwb_bce_get(struct uwb_beca_e *bce) { kref_get(&bce->refcnt); } static inline void uwb_bce_put(struct uwb_beca_e *bce) { kref_put(&bce->refcnt, uwb_bce_kfree); } extern void uwb_beca_purge(struct uwb_rc *rc); extern void uwb_beca_release(struct uwb_rc *rc); struct uwb_dev *uwb_dev_get_by_devaddr(struct uwb_rc *rc, const struct uwb_dev_addr *devaddr); struct uwb_dev *uwb_dev_get_by_macaddr(struct uwb_rc *rc, const struct uwb_mac_addr *macaddr); int uwb_radio_setup(struct uwb_rc *rc); void uwb_radio_reset_state(struct uwb_rc *rc); void uwb_radio_shutdown(struct uwb_rc *rc); int uwb_radio_force_channel(struct uwb_rc *rc, int channel); /* -- UWB Sysfs representation */ extern struct class uwb_rc_class; extern struct bus_type uwb_bus_type; extern struct device_attribute dev_attr_mac_address; extern struct device_attribute dev_attr_beacon; extern struct device_attribute dev_attr_scan; /* -- DRP Bandwidth allocator: bandwidth allocations, reservations, DRP */ void uwb_rsv_init(struct uwb_rc *rc); int uwb_rsv_setup(struct uwb_rc *rc); void uwb_rsv_cleanup(struct uwb_rc *rc); void uwb_rsv_remove_all(struct uwb_rc *rc); void uwb_rsv_get(struct uwb_rsv *rsv); void uwb_rsv_put(struct uwb_rsv *rsv); bool uwb_rsv_has_two_drp_ies(struct uwb_rsv *rsv); void uwb_rsv_dump(char *text, struct uwb_rsv *rsv); int uwb_rsv_try_move(struct uwb_rsv *rsv, struct uwb_mas_bm *available); void uwb_rsv_backoff_win_timer(struct timer_list *t); void uwb_rsv_backoff_win_increment(struct uwb_rc *rc); int uwb_rsv_status(struct uwb_rsv *rsv); int uwb_rsv_companion_status(struct uwb_rsv *rsv); void uwb_rsv_set_state(struct uwb_rsv *rsv, enum uwb_rsv_state new_state); void uwb_rsv_remove(struct uwb_rsv *rsv); struct uwb_rsv *uwb_rsv_find(struct uwb_rc *rc, struct uwb_dev *src, struct uwb_ie_drp *drp_ie); void uwb_rsv_sched_update(struct uwb_rc *rc); void uwb_rsv_queue_update(struct uwb_rc *rc); int uwb_drp_ie_update(struct uwb_rsv *rsv); void uwb_drp_ie_to_bm(struct uwb_mas_bm *bm, const struct uwb_ie_drp *drp_ie); void uwb_drp_avail_init(struct uwb_rc *rc); void uwb_drp_available(struct uwb_rc *rc, struct uwb_mas_bm *avail); int uwb_drp_avail_reserve_pending(struct uwb_rc *rc, struct uwb_mas_bm *mas); void uwb_drp_avail_reserve(struct uwb_rc *rc, struct uwb_mas_bm *mas); void uwb_drp_avail_release(struct uwb_rc *rc, struct uwb_mas_bm *mas); void uwb_drp_avail_ie_update(struct uwb_rc *rc); /* -- PAL support */ void uwb_rc_pal_init(struct uwb_rc *rc); /* -- Misc */ extern ssize_t uwb_mac_frame_hdr_print(char *, size_t, const struct uwb_mac_frame_hdr *); /* -- Debug interface */ void uwb_dbg_init(void); void uwb_dbg_exit(void); void uwb_dbg_add_rc(struct uwb_rc *rc); void uwb_dbg_del_rc(struct uwb_rc *rc); struct dentry *uwb_dbg_create_pal_dir(struct uwb_pal *pal); static inline void uwb_dev_lock(struct uwb_dev *uwb_dev) { device_lock(&uwb_dev->dev); } static inline void uwb_dev_unlock(struct uwb_dev *uwb_dev) { device_unlock(&uwb_dev->dev); } #endif /* #ifndef __UWB_INTERNAL_H__ */
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