1 /* Asynchronous part of GSM Layer 1 */
3 /* (C) 2010 by Harald Welte <laforge@gnumonks.org>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
27 #include <asm/system.h>
29 #include <osmocom/core/msgb.h>
30 #include <osmocom/gsm/protocol/gsm_04_08.h>
32 #include <layer1/sync.h>
33 #include <layer1/async.h>
34 #include <layer1/mframe_sched.h>
35 #include <layer1/sched_gsmtime.h>
36 #include <layer1/l23_api.h>
37 #include <calypso/l1_environment.h>
39 extern const struct tdma_sched_item rach_sched_set_ul[];
41 /* safely enable a message into the L1S TX queue */
42 void l1a_txq_msgb_enq(struct llist_head *queue, struct msgb *msg)
46 local_firq_save(flags);
47 msgb_enqueue(queue, msg);
48 local_irq_restore(flags);
51 void l1a_meas_msgb_set(struct msgb *msg)
55 local_firq_save(flags);
57 msgb_free(l1s.tx_meas);
59 local_irq_restore(flags);
62 /* safely count messages in the L1S TX queue */
63 int l1a_txq_msgb_count(struct llist_head *queue)
67 struct llist_head *le;
69 local_firq_save(flags);
70 llist_for_each(le, queue)
72 local_irq_restore(flags);
77 /* safely flush all pending msgb */
78 void l1a_txq_msgb_flush(struct llist_head *queue)
83 local_firq_save(flags);
84 while ((msg = msgb_dequeue(queue)))
86 local_irq_restore(flags);
89 /* Enable a repeating multiframe task */
90 void l1a_mftask_enable(enum mframe_task task)
92 /* we don't need locking here as L1S only reads mframe.tasks */
96 /* Disable a repeating multiframe task */
97 void l1a_mftask_disable(enum mframe_task task)
99 /* we don't need locking here as L1S only reads mframe.tasks */
100 mframe_disable(task);
103 /* Set the mask for repeating multiframe tasks */
104 void l1a_mftask_set(uint32_t tasks)
106 /* we don't need locking here as L1S only reads mframe.tasks */
111 uint8_t l1a_tch_mode_set(uint8_t mode)
114 case GSM48_CMODE_SPEECH_V1:
115 case GSM48_CMODE_SPEECH_EFR:
119 l1s.tch_mode = GSM48_CMODE_SIGN;
125 /* Initialize asynchronous part of Layer1 */
131 /* Execute pending L1A completions */
132 void l1a_compl_execute(void)
135 unsigned int scheduled;
138 /* get and reset the currently scheduled tasks */
139 local_firq_save(flags);
140 scheduled = l1s.scheduled_compl;
141 l1s.scheduled_compl = 0;
142 local_irq_restore(flags);
144 /* Iterate over list of scheduled completions, call their
145 * respective completion handler */
146 for (i = 0; i < 32; i++) {
147 if (!(scheduled & (1 << i)))
149 /* call completion function */
150 l1s.completion[i](i);