From aa6f5ffbdba45aa8e19e5048648fc6c7b25376d3 Mon Sep 17 00:00:00 2001 From: merge Date: Thu, 22 Jan 2009 13:55:32 +0000 Subject: MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 / fdf777a63bcb59e0dfd78bfe2c6242e01f6d4eb9 ... parent commitmessage: From: merge MERGE-via-stable-tracking-hist-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 stable-tracking-hist top was MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 / 90463bfd2d5a3c8b52f6e6d71024a00e052b0ced ... parent commitmessage: From: merge MERGE-via-mokopatches-tracking-hist-fix-stray-endmenu-patch mokopatches-tracking-hist top was fix-stray-endmenu-patch / 3630e0be570de8057e7f8d2fe501ed353cdf34e6 ... parent commitmessage: From: Andy Green fix-stray-endmenu.patch Signed-off-by: Andy Green --- drivers/uwb/drp-ie.c | 161 +++++++++++++++++++++++++++++++++++++++------------ 1 file changed, 123 insertions(+), 38 deletions(-) (limited to 'drivers/uwb/drp-ie.c') diff --git a/drivers/uwb/drp-ie.c b/drivers/uwb/drp-ie.c index 882724c5f12..2840d7bf9e6 100644 --- a/drivers/uwb/drp-ie.c +++ b/drivers/uwb/drp-ie.c @@ -16,13 +16,102 @@ * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ -#include #include #include #include #include "uwb-internal.h" + +/* + * Return the reason code for a reservations's DRP IE. + */ +int uwb_rsv_reason_code(struct uwb_rsv *rsv) +{ + static const int reason_codes[] = { + [UWB_RSV_STATE_O_INITIATED] = UWB_DRP_REASON_ACCEPTED, + [UWB_RSV_STATE_O_PENDING] = UWB_DRP_REASON_ACCEPTED, + [UWB_RSV_STATE_O_MODIFIED] = UWB_DRP_REASON_MODIFIED, + [UWB_RSV_STATE_O_ESTABLISHED] = UWB_DRP_REASON_ACCEPTED, + [UWB_RSV_STATE_O_TO_BE_MOVED] = UWB_DRP_REASON_ACCEPTED, + [UWB_RSV_STATE_O_MOVE_COMBINING] = UWB_DRP_REASON_MODIFIED, + [UWB_RSV_STATE_O_MOVE_REDUCING] = UWB_DRP_REASON_MODIFIED, + [UWB_RSV_STATE_O_MOVE_EXPANDING] = UWB_DRP_REASON_ACCEPTED, + [UWB_RSV_STATE_T_ACCEPTED] = UWB_DRP_REASON_ACCEPTED, + [UWB_RSV_STATE_T_CONFLICT] = UWB_DRP_REASON_CONFLICT, + [UWB_RSV_STATE_T_PENDING] = UWB_DRP_REASON_PENDING, + [UWB_RSV_STATE_T_DENIED] = UWB_DRP_REASON_DENIED, + [UWB_RSV_STATE_T_RESIZED] = UWB_DRP_REASON_ACCEPTED, + [UWB_RSV_STATE_T_EXPANDING_ACCEPTED] = UWB_DRP_REASON_ACCEPTED, + [UWB_RSV_STATE_T_EXPANDING_CONFLICT] = UWB_DRP_REASON_CONFLICT, + [UWB_RSV_STATE_T_EXPANDING_PENDING] = UWB_DRP_REASON_PENDING, + [UWB_RSV_STATE_T_EXPANDING_DENIED] = UWB_DRP_REASON_DENIED, + }; + + return reason_codes[rsv->state]; +} + +/* + * Return the reason code for a reservations's companion DRP IE . + */ +int uwb_rsv_companion_reason_code(struct uwb_rsv *rsv) +{ + static const int companion_reason_codes[] = { + [UWB_RSV_STATE_O_MOVE_EXPANDING] = UWB_DRP_REASON_ACCEPTED, + [UWB_RSV_STATE_T_EXPANDING_ACCEPTED] = UWB_DRP_REASON_ACCEPTED, + [UWB_RSV_STATE_T_EXPANDING_CONFLICT] = UWB_DRP_REASON_CONFLICT, + [UWB_RSV_STATE_T_EXPANDING_PENDING] = UWB_DRP_REASON_PENDING, + [UWB_RSV_STATE_T_EXPANDING_DENIED] = UWB_DRP_REASON_DENIED, + }; + + return companion_reason_codes[rsv->state]; +} + +/* + * Return the status bit for a reservations's DRP IE. + */ +int uwb_rsv_status(struct uwb_rsv *rsv) +{ + static const int statuses[] = { + [UWB_RSV_STATE_O_INITIATED] = 0, + [UWB_RSV_STATE_O_PENDING] = 0, + [UWB_RSV_STATE_O_MODIFIED] = 1, + [UWB_RSV_STATE_O_ESTABLISHED] = 1, + [UWB_RSV_STATE_O_TO_BE_MOVED] = 0, + [UWB_RSV_STATE_O_MOVE_COMBINING] = 1, + [UWB_RSV_STATE_O_MOVE_REDUCING] = 1, + [UWB_RSV_STATE_O_MOVE_EXPANDING] = 1, + [UWB_RSV_STATE_T_ACCEPTED] = 1, + [UWB_RSV_STATE_T_CONFLICT] = 0, + [UWB_RSV_STATE_T_PENDING] = 0, + [UWB_RSV_STATE_T_DENIED] = 0, + [UWB_RSV_STATE_T_RESIZED] = 1, + [UWB_RSV_STATE_T_EXPANDING_ACCEPTED] = 1, + [UWB_RSV_STATE_T_EXPANDING_CONFLICT] = 1, + [UWB_RSV_STATE_T_EXPANDING_PENDING] = 1, + [UWB_RSV_STATE_T_EXPANDING_DENIED] = 1, + + }; + + return statuses[rsv->state]; +} + +/* + * Return the status bit for a reservations's companion DRP IE . + */ +int uwb_rsv_companion_status(struct uwb_rsv *rsv) +{ + static const int companion_statuses[] = { + [UWB_RSV_STATE_O_MOVE_EXPANDING] = 0, + [UWB_RSV_STATE_T_EXPANDING_ACCEPTED] = 1, + [UWB_RSV_STATE_T_EXPANDING_CONFLICT] = 0, + [UWB_RSV_STATE_T_EXPANDING_PENDING] = 0, + [UWB_RSV_STATE_T_EXPANDING_DENIED] = 0, + }; + + return companion_statuses[rsv->state]; +} + /* * Allocate a DRP IE. * @@ -34,16 +123,12 @@ static struct uwb_ie_drp *uwb_drp_ie_alloc(void) { struct uwb_ie_drp *drp_ie; - unsigned tiebreaker; drp_ie = kzalloc(sizeof(struct uwb_ie_drp) + UWB_NUM_ZONES * sizeof(struct uwb_drp_alloc), GFP_KERNEL); if (drp_ie) { drp_ie->hdr.element_id = UWB_IE_DRP; - - get_random_bytes(&tiebreaker, sizeof(unsigned)); - uwb_ie_drp_set_tiebreaker(drp_ie, tiebreaker & 1); } return drp_ie; } @@ -104,43 +189,17 @@ static void uwb_drp_ie_from_bm(struct uwb_ie_drp *drp_ie, */ int uwb_drp_ie_update(struct uwb_rsv *rsv) { - struct device *dev = &rsv->rc->uwb_dev.dev; struct uwb_ie_drp *drp_ie; - int reason_code, status; + struct uwb_rsv_move *mv; + int unsafe; - switch (rsv->state) { - case UWB_RSV_STATE_NONE: + if (rsv->state == UWB_RSV_STATE_NONE) { kfree(rsv->drp_ie); rsv->drp_ie = NULL; return 0; - case UWB_RSV_STATE_O_INITIATED: - reason_code = UWB_DRP_REASON_ACCEPTED; - status = 0; - break; - case UWB_RSV_STATE_O_PENDING: - reason_code = UWB_DRP_REASON_ACCEPTED; - status = 0; - break; - case UWB_RSV_STATE_O_MODIFIED: - reason_code = UWB_DRP_REASON_MODIFIED; - status = 1; - break; - case UWB_RSV_STATE_O_ESTABLISHED: - reason_code = UWB_DRP_REASON_ACCEPTED; - status = 1; - break; - case UWB_RSV_STATE_T_ACCEPTED: - reason_code = UWB_DRP_REASON_ACCEPTED; - status = 1; - break; - case UWB_RSV_STATE_T_DENIED: - reason_code = UWB_DRP_REASON_DENIED; - status = 0; - break; - default: - dev_dbg(dev, "rsv with unhandled state (%d)\n", rsv->state); - return -EINVAL; } + + unsafe = rsv->mas.unsafe ? 1 : 0; if (rsv->drp_ie == NULL) { rsv->drp_ie = uwb_drp_ie_alloc(); @@ -149,9 +208,11 @@ int uwb_drp_ie_update(struct uwb_rsv *rsv) } drp_ie = rsv->drp_ie; + uwb_ie_drp_set_unsafe(drp_ie, unsafe); + uwb_ie_drp_set_tiebreaker(drp_ie, rsv->tiebreaker); uwb_ie_drp_set_owner(drp_ie, uwb_rsv_is_owner(rsv)); - uwb_ie_drp_set_status(drp_ie, status); - uwb_ie_drp_set_reason_code(drp_ie, reason_code); + uwb_ie_drp_set_status(drp_ie, uwb_rsv_status(rsv)); + uwb_ie_drp_set_reason_code(drp_ie, uwb_rsv_reason_code(rsv)); uwb_ie_drp_set_stream_index(drp_ie, rsv->stream); uwb_ie_drp_set_type(drp_ie, rsv->type); @@ -169,6 +230,27 @@ int uwb_drp_ie_update(struct uwb_rsv *rsv) uwb_drp_ie_from_bm(drp_ie, &rsv->mas); + if (uwb_rsv_has_two_drp_ies(rsv)) { + mv = &rsv->mv; + if (mv->companion_drp_ie == NULL) { + mv->companion_drp_ie = uwb_drp_ie_alloc(); + if (mv->companion_drp_ie == NULL) + return -ENOMEM; + } + drp_ie = mv->companion_drp_ie; + + /* keep all the same configuration of the main drp_ie */ + memcpy(drp_ie, rsv->drp_ie, sizeof(struct uwb_ie_drp)); + + + /* FIXME: handle properly the unsafe bit */ + uwb_ie_drp_set_unsafe(drp_ie, 1); + uwb_ie_drp_set_status(drp_ie, uwb_rsv_companion_status(rsv)); + uwb_ie_drp_set_reason_code(drp_ie, uwb_rsv_companion_reason_code(rsv)); + + uwb_drp_ie_from_bm(drp_ie, &mv->companion_mas); + } + rsv->ie_valid = true; return 0; } @@ -219,6 +301,8 @@ void uwb_drp_ie_to_bm(struct uwb_mas_bm *bm, const struct uwb_ie_drp *drp_ie) u8 zone; u16 zone_mask; + bitmap_zero(bm->bm, UWB_NUM_MAS); + for (cnt = 0; cnt < numallocs; cnt++) { alloc = &drp_ie->allocs[cnt]; zone_bm = le16_to_cpu(alloc->zone_bm); @@ -230,3 +314,4 @@ void uwb_drp_ie_to_bm(struct uwb_mas_bm *bm, const struct uwb_ie_drp *drp_ie) } } } + -- cgit v1.2.3