Commit Graph

21 Commits

Author SHA1 Message Date
Vadim Yanitskiy e38b500794 host/trxcon/scheduler: fix prim queue flushing function
For some reasons, the function, which is used to flush a queue of
transmit primitives, was intended to flush a list of msgb instances
instead of trx_ts_prim, so memory was being cleaned incorrectly.
Moreover, the items weren't actually removed from queue.

Change-Id: Ia84b57350a5c2eee0afebc65f62e30eaddb141d4
2017-11-19 17:35:07 +07:00
Vadim Yanitskiy 7d95f8821e host/trxcon/l1ctl.c: share primitive management code
This change introduces shared primitive management functions,
exposed from the l1ctl_rx_data_req() implementation:

  - sched_trx_init_prim() - allocates memory for a new primitive
    and its payload. Initializes primitive's header, setting
    the logical channel type and the payload length. After
    initialization, the talloc context of a primitive is
    a trx instance, which passed as the first argument.

  - sched_trx_push_prim() - decodes the timeslot index from
    chan_nr and pushes a primitive to its transimt queue.
    The talloc context of primitive is changed to the
    parent trx_ts instance after queuing.

Both functions will be used for handling both L1CTL_TRAFFIC_REQ
and L1CTL_RACH_REQ.

Change-Id: I8169a1ef4ef54d91b50f3e213e4842f54af8b499
2017-11-19 17:35:07 +07:00
Vadim Yanitskiy c0100cd145 host/trxcon/scheduler: get rid of useless nbits argument
Change-Id: I8508676e2cb347396c6ca6b394f13113f3e63084
2017-11-19 17:35:07 +07:00
Vadim Yanitskiy 8fd143ee5a host/trxcon/scheduler: pass trx_lchan_state to lchan handlers
It's better to pass a trx_lchan_state instance directly from
caller to lchan handler instead of passing trx_lchan_type. This
way a handler wouldn't need to find lchan itself.

Change-Id: I47a40542b03ab31da12b0abb1c263c83662ff018
2017-11-19 17:35:07 +07:00
Vadim Yanitskiy 58c7faf5eb host/trxcon/scheduler: fix chan_nr parsing
Previously, the chan_nr, received from L2, was parsed in a wrong
way, so in some cases only one logical channel was activated or
some messages (such as Measurement Requests) were sent on
incorrect channel (e.g. on SDCCH instead of SACCH).

This change reimplements the sched_trx_chan_nr2lchan_type(), and
introduces a new function sched_trx_set_lchans(), whics will
parse chan_nr and (de)activate required channels.

Change-Id: I480311c65ef93bbc1644ec708dd2a68fd33091e0
2017-11-19 17:35:07 +07:00
Vadim Yanitskiy 5629699996 host/trxcon/scheduler: drop a meaningless FIXME label
Change-Id: If5497f4fdce22e986f46725cc1575a1e809ccdab
2017-11-19 17:35:07 +07:00
Vadim Yanitskiy 075c1ad738 host/trxcon/scheduler: git rid of sched_trx_find_ts()
After simplification of timeslot management API this
function does not make sense.

Change-Id: I2fc0c68d784c8f01e1452bc46f8e1eaac2917656
2017-11-19 17:35:07 +07:00
Vadim Yanitskiy 6aa6690277 host/trxcon/scheduler: fix possible NULL deference
We should make sure that required timeslot is not only allocated,
but also configured, i.e. has a correct multiframe layout.

Change-Id: I1d0b870c389802b51c709d089b80ac3fb3565fa8
2017-11-19 17:35:07 +07:00
Vadim Yanitskiy c045bc4fbe host/trxcon/scheduler: simplify timeslot management
As we know the count of timeslots per GSM TDMA frame, it would
be better to have an array of pointers to trx_ts instances instead
of linux list, which is more usable for lists with unknown length.

Change-Id: I9510a5cddde22950ceb8422e0990d59f05ed4d60
2017-11-19 17:35:07 +07:00
Vadim Yanitskiy 026ed14c4b host/trxcon: adjust default verbosity level
Change-Id: I91258091b59e5cdd30b767364fb48c3d67980eb7
2017-11-19 17:35:07 +07:00
Vadim Yanitskiy 2001221d75 host/trxcon/scheduler: optionally reset clock counter
Change-Id: I4565620fc0c5f64133c2674d2c972fc34245cf32
2017-11-19 17:35:07 +07:00
Vadim Yanitskiy 00bb1d5a79 host/trxcon/scheduler: implement sched_clck_reset()
It's better to have the clock management API inside a single file.

Change-Id: I92772f3db404e70fdffd530779613196afec61c9
2017-11-19 17:35:07 +07:00
Vadim Yanitskiy b30031356c host/trxcon: get rid of useless trxcon fsm events
Both SCH_EVENT_CLCK_IND and SCH_EVENT_CLCK_LOSS were not handled,
moreover there is no purpose to keep them.

Change-Id: I8efac459a40f4287e3325890809991d5ef46e9b1
2017-11-19 17:35:07 +07:00
Vadim Yanitskiy 824bfa299d host/trxcon/l1ctl.c: handle L1CTL_DM_{EST,REL}_REQ
Change-Id: Ifdf229a6dd3c73ede313d2bfe384032e3887cc3a
2017-11-19 17:35:07 +07:00
Vadim Yanitskiy 283fb5879c host/trxcon/scheduler: fix TS index in sched_trx_configure_ts()
TS index was not assigned after allocation of a new one.

Change-Id: I1b62218f863acf27fb1d1f46b273b345b97d33d8
2017-11-19 17:35:07 +07:00
Vadim Yanitskiy 656e31f762 host/trxcon/scheduler: notify transceiver about TS state
Change-Id: I5783066e7c1b01e4ebb28d10b03f3290ff8a0f37
2017-11-19 17:35:07 +07:00
Vadim Yanitskiy 2abc7a4998 host/trxcon/scheduler: implement TX queue handling
Change-Id: I2b7bae53901156524134c4904ea1179268d85601
2017-11-19 17:35:07 +07:00
Vadim Yanitskiy ca1d021c83 host/trxcon/scheduler: drop resolved FIXME label
Change-Id: I5e6b30300a457422b2deb10ff4c051c86beb7cd2
2017-11-19 17:35:07 +07:00
Vadim Yanitskiy 99f8aea905 host/trxcon/scheduler: fix channel deactivation
Change-Id: I7c99b7bd99619084727af290b388f7492ba58531
2017-11-19 17:35:07 +07:00
Vadim Yanitskiy ec3a1ba2e5 host/trxcon/scheduler: handle bursts from TRX interface
Change-Id: Iff15daf897f30cb98d4ec4c88b9fc259cb44ea4e
2017-11-19 17:35:07 +07:00
Vadim Yanitskiy 8baa369b23 host/trxcon/scheduler: implement management functions
This change introduces some new functions to configure
TDMA scheduler. They can be grouped as follows:

  - Scheduler management functions
    - sched_trx_init()
    - sched_trx_reset()
    - sched_trx_shutdown()

  - Timeslot management functions
    - sched_trx_add_ts()
    - sched_trx_find_ts()
    - sched_trx_del_ts()
    - sched_trx_reset_ts()
    - sched_trx_configure_ts()

  - Logical channel management functions
    - sched_trx_activate_lchan()
    - sched_trx_deactivate_lchan()
    - sched_trx_find_lchan()

Change-Id: I6d0f437a68f0eb4e22bf635bf899b08673571085
2017-11-19 17:35:07 +07:00