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zephyr/subsys/bluetooth/controller/util/util.h

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Bluetooth: Controller: Add a util folder with basic primitives The util folder contains memory management, queue management and misc utilities used by the Link Layer implementation. This will be in time replaced by Zephyr's native functionality. Jira: ZEP-702 Origin: Original Change-Id: Id8602ea41ec44811801dfc582bab244c339eabe3 Signed-off-by: Vinayak Chettimada <vinayak.kariappa.chettimada@nordicsemi.no> Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
2016-08-15 18:16:30 +08:00
/*
* Copyright (c) 2016 Nordic Semiconductor ASA
* Copyright (c) 2016 Vinayak Kariappa Chettimada
*
license: Replace Apache boilerplate with SPDX tag Replace the existing Apache 2.0 boilerplate header with an SPDX tag throughout the zephyr code tree. This patch was generated via a script run over the master branch. Also updated doc/porting/application.rst that had a dependency on line numbers in a literal include. Manually updated subsys/logging/sys_log.c that had a malformed header in the original file. Also cleanup several cases that already had a SPDX tag and we either got a duplicate or missed updating. Jira: ZEP-1457 Change-Id: I6131a1d4ee0e58f5b938300c2d2fc77d2e69572c Signed-off-by: David B. Kinder <david.b.kinder@intel.com> Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-01-19 09:01:01 +08:00
* SPDX-License-Identifier: Apache-2.0
Bluetooth: Controller: Add a util folder with basic primitives The util folder contains memory management, queue management and misc utilities used by the Link Layer implementation. This will be in time replaced by Zephyr's native functionality. Jira: ZEP-702 Origin: Original Change-Id: Id8602ea41ec44811801dfc582bab244c339eabe3 Signed-off-by: Vinayak Chettimada <vinayak.kariappa.chettimada@nordicsemi.no> Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
2016-08-15 18:16:30 +08:00
*/
Bluetooth: Controller: replace work with mayfly This commit introduces a very light-weight and lock-less scheduling of the Controller's deferred function calls called the Mayfly. Earlier work implementation used in the Controller had an O(n) to schedule a function in a linked list that used IRQ lock during modification of the linked list in the Controller's ISR executions. Mayfly is a compile time configurable matrix of queues where an execution context-safe queue exists between two execution context, one being the caller and the second being the callee. Callee(s) are run in a software interrupt but can also be run in an OS thread. There are minor clean ups too in this commit related to folder structure. Change-id: I5ff44dcee6679d2f5ce9e8437d98d6c868782f3d Signed-off-by: Vinayak Chettimada <vinayak.kariappa.chettimada@nordicsemi.no>
2016-12-21 13:21:13 +08:00
#ifndef DOUBLE_BUFFER_SIZE
#define DOUBLE_BUFFER_SIZE 2
#endif
#ifndef TRIPLE_BUFFER_SIZE
#define TRIPLE_BUFFER_SIZE 3
#endif
Bluetooth: Fix infinite recursion in host-based bt_rand Fix infinite recursion in host-based bt_rand function. This would call HCI LE Random Number command, which would in turn call bt_rand, causing an infinite recursion. bt_rand -> prng_reseed -> BT_HCI_OP_LE_RAND -> le_rand -> bt_rand To solve this issue the controller should avoid doing calls into the host, so all calls to bt_rand in the controller should be replaced with a call to a controller function. Fixes #22202 Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
2020-01-30 01:44:25 +08:00
#include <stddef.h>
Bluetooth: convert to using newly introduced integer sized types Convert code to use u{8,16,32,64}_t and s{8,16,32,64}_t instead of C99 integer types. Jira: ZEP-2051 Change-Id: I8f57a17f78e674aca5400f005db8975c9f9e150e Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-04-21 01:00:29 +08:00
u8_t util_ones_count_get(u8_t *octets, u8_t octets_len);
Bluetooth: Fix infinite recursion in host-based bt_rand Fix infinite recursion in host-based bt_rand function. This would call HCI LE Random Number command, which would in turn call bt_rand, causing an infinite recursion. bt_rand -> prng_reseed -> BT_HCI_OP_LE_RAND -> le_rand -> bt_rand To solve this issue the controller should avoid doing calls into the host, so all calls to bt_rand in the controller should be replaced with a call to a controller function. Fixes #22202 Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
2020-01-30 01:44:25 +08:00
int util_rand(void *buf, size_t len);