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uwb: infrastructure for handling Relinquish Request IEs

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The structures and event handler needed to handle Relinish Request IEs
received from neighbors.  Nothing is done with these IEs yet.

Signed-off-by: Stefano Panella <stefano.panella@csr.com>
Signed-off-by: David Vrabel <david.vrabel@csr.com>
This commit is contained in:
Stefano Panella 2008-11-04 14:06:31 +00:00 • committed by David Vrabel
parent f88518d122
commit c5995bd281
5 changed files with 89 additions and 0 deletions
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28
include/linux/uwb/spec.h
View file

@ -200,6 +200,12 @@ enum uwb_drp_reason {
UWB_DRP_REASON_MODIFIED,
};
/** Relinquish Request Reason Codes ([ECMA-368] table 113) */
enum uwb_relinquish_req_reason {
UWB_RELINQUISH_REQ_REASON_NON_SPECIFIC = 0,
UWB_RELINQUISH_REQ_REASON_OVER_ALLOCATION,
};
/**
* DRP Notification Reason Codes (WHCI 0.95 [3.1.4.9])
*/
@ -252,6 +258,7 @@ enum uwb_ie {
UWB_APP_SPEC_PROBE_IE = 15,
UWB_IDENTIFICATION_IE = 19,
UWB_MASTER_KEY_ID_IE = 20,
UWB_RELINQUISH_REQUEST_IE = 21,
UWB_IE_WLP = 250, /* WiMedia Logical Link Control Protocol WLP 0.99 */
UWB_APP_SPEC_IE = 255,
};
@ -365,6 +372,27 @@ struct uwb_ie_drp_avail {
DECLARE_BITMAP(bmp, UWB_NUM_MAS);
} __attribute__((packed));
/* Relinqish Request IE ([ECMA-368] section 16.8.19). */
struct uwb_relinquish_request_ie {
struct uwb_ie_hdr hdr;
__le16 relinquish_req_control;
struct uwb_dev_addr dev_addr;
struct uwb_drp_alloc allocs[];
} __attribute__((packed));
static inline int uwb_ie_relinquish_req_reason_code(struct uwb_relinquish_request_ie *ie)
{
return (le16_to_cpu(ie->relinquish_req_control) >> 0) & 0xf;
}
static inline void uwb_ie_relinquish_req_set_reason_code(struct uwb_relinquish_request_ie *ie,
int reason_code)
{
u16 ctrl = le16_to_cpu(ie->relinquish_req_control);
ctrl = (ctrl & ~(0xf << 0)) | (reason_code << 0);
ie->relinquish_req_control = cpu_to_le16(ctrl);
}
/**
* The Vendor ID is set to an OUI that indicates the vendor of the device.
* ECMA-368 [16.8.10]