nimble_npl_os.h File Reference

Mynewt-Nimble Porting layer wrappers. More...

Detailed Description

Mynewt-Nimble Porting layer wrappers.

Author

Hauke Petersen hauke.nosp@m..pet.nosp@m.ersen.nosp@m.@fu-.nosp@m.berli.nosp@m.n.de

Definition in file nimble_npl_os.h.

#include <stdint.h>
#include <stdbool.h>
#include "os/os.h"
#include "mcu/mcu.h"

Include dependency graph for nimble_npl_os.h:

Go to the source code of this file.

Data Structures
struct	ble_npl_event
	ble_npl event wrapper More...
struct	ble_npl_eventq
	ble_npl event queue wrapper More...
struct	ble_npl_callout
	ble_npl callout wrapper More...
struct	ble_npl_mutex
	ble_npl mutex wrapper More...
struct	ble_npl_sem
	ble_npl semaphore wrapper More...

Typedefs
typedef uint32_t	ble_npl_time_t
	time type
typedef int32_t	ble_npl_stime_t
	time type

Functions
static bool	ble_npl_os_started (void)
	Not used in RIOT. More...
static void	ble_npl_event_init (struct ble_npl_event *ev, ble_npl_event_fn *fn, void *arg)
	Init a event. More...
static bool	ble_npl_event_is_queued (struct ble_npl_event *ev)
	Check if event is in queue. More...
static void *	ble_npl_event_get_arg (struct ble_npl_event *ev)
	Runs an event. More...
static void	ble_npl_event_set_arg (struct ble_npl_event *ev, void *arg)
	Set the vent arg. More...
static void	ble_npl_event_run (struct ble_npl_event *ev)
	Runs an event. More...
static void	ble_npl_eventq_init (struct ble_npl_eventq *evq)
	Initialize the event queue. More...
static int	ble_npl_eventq_inited (struct ble_npl_eventq *evq)
	Check whether the event queue is initialized. More...
static void	ble_npl_eventq_deinit (struct ble_npl_eventq *evq)
	Deinitialize an event queue. More...
static struct ble_npl_event *	ble_npl_eventq_get (struct ble_npl_eventq *evq, ble_npl_time_t tmo)
	Get next event from event queue, blocking. More...
static struct ble_npl_event *	ble_npl_eventq_get_no_wait (struct ble_npl_eventq *evq)
	Get next event from event queue, non-blocking. More...
static void	ble_npl_eventq_put (struct ble_npl_eventq *evq, struct ble_npl_event *ev)
	Put an event on the event queue. More...
static void	ble_npl_eventq_remove (struct ble_npl_eventq *evq, struct ble_npl_event *ev)
	Remove an event from the queue. More...
static void	ble_npl_eventq_run (struct ble_npl_eventq *evq)
	Gets and runs an event from the queue callback. More...
static bool	ble_npl_eventq_is_empty (struct ble_npl_eventq *evq)
	Check if queue is empty. More...
static ble_npl_error_t	ble_npl_mutex_init (struct ble_npl_mutex *mu)
	Initializes a mutex object. More...
static ble_npl_error_t	ble_npl_mutex_pend (struct ble_npl_mutex *mu, ble_npl_time_t timeout)
	Pend (wait) for a mutex. More...
static ble_npl_error_t	ble_npl_mutex_release (struct ble_npl_mutex *mu)
	Release a mutex. More...
static ble_npl_error_t	ble_npl_sem_init (struct ble_npl_sem *sem, uint16_t tokens)
	Initialize a semaphore. More...
static ble_npl_error_t	ble_npl_sem_pend (struct ble_npl_sem *sem, ble_npl_time_t timeout)
	Pend (wait) for a semaphore. More...
static ble_npl_error_t	ble_npl_sem_release (struct ble_npl_sem *sem)
	Release a semaphore. More...
static uint16_t	ble_npl_sem_get_count (struct ble_npl_sem *sem)
	Get current semaphore's count.
static void	ble_npl_callout_init (struct ble_npl_callout *c, struct ble_npl_eventq *q, ble_npl_event_fn *e_cb, void *e_arg)
	Initialize a callout. More...
static ble_npl_error_t	ble_npl_callout_reset (struct ble_npl_callout *c, ble_npl_time_t ticks)
	Reset the callout to fire off in 'ticks' ticks. More...
static void	ble_npl_callout_stop (struct ble_npl_callout *c)
	Stops the callout from firing. More...
static bool	ble_npl_callout_is_active (struct ble_npl_callout *c)
	Check if callout is active. More...
static ble_npl_time_t	ble_npl_callout_get_ticks (struct ble_npl_callout *co)
	Get the callout set ticks. More...
static ble_npl_time_t	ble_npl_callout_remaining_ticks (struct ble_npl_callout *co, ble_npl_time_t time)
	Get the remaining ticks for callout expire. More...
static void	ble_npl_callout_set_arg (struct ble_npl_callout *co, void *arg)
	Set the callout event argument. More...
static ble_npl_time_t	ble_npl_time_get (void)
	Returns the low 32 bits of cputime. More...
static ble_npl_error_t	ble_npl_time_ms_to_ticks (uint32_t ms, ble_npl_time_t *out_ticks)
	Converts the given number of milliseconds into cputime ticks. More...
static ble_npl_error_t	ble_npl_time_ticks_to_ms (ble_npl_time_t ticks, uint32_t *out_ms)
	Convert the given number of ticks into milliseconds. More...
static ble_npl_time_t	ble_npl_time_ms_to_ticks32 (uint32_t ms)
	Converts the given number of milliseconds into cputime ticks. More...
static ble_npl_time_t	ble_npl_time_ticks_to_ms32 (ble_npl_time_t ticks)
	Convert the given number of ticks into milliseconds. More...
static void	ble_npl_time_delay (ble_npl_time_t ticks)
	Wait until the number of ticks has elapsed, BLOICKING. More...
static uint32_t	ble_npl_hw_enter_critical (void)
	Disable ISRs. More...
static void	ble_npl_hw_exit_critical (uint32_t ctx)
	Restores ISR context. More...
static bool	ble_npl_hw_is_in_critical (void)
	Check if is in critical section. More...
static void *	ble_npl_get_current_task_id (void)
	Return current thread PID. More...
static void	ble_npl_hw_set_isr (int irqn, void(*addr)(void))
	Set nrf5x radio ISR callback. More...

BLE NPL layer macros
#define	BLE_NPL_OS_ALIGNMENT   (OS_ALIGNMENT)
#define	BLE_NPL_TIME_FOREVER   (OS_WAIT_FOREVER)

Function Documentation

ble_npl_callout_get_ticks()

static ble_npl_time_t ble_npl_callout_get_ticks ( struct ble_npl_callout *  co )

inlinestatic

Get the callout set ticks.

Parameters

[in]

co

the callout to check

Definition at line 418 of file nimble_npl_os.h.

ble_npl_callout_init()

static void ble_npl_callout_init ( struct ble_npl_callout *  c, struct ble_npl_eventq *  q, ble_npl_event_fn *  e_cb, void *  e_arg  )

inlinestatic

Initialize a callout.

Callouts are used to schedule events in the future onto an event queue. Callout timers are scheduled using the ble_npl_callout_reset() function. When the timer expires, an event is posted to the event queue specified in ble_npl_callout_init(). The event argument given here is posted in the ev_arg field of that event.

Parameters

[out]	c	callout to initialize
[in]	q	event queue to queue event in
[in]	e_cb	callback function
[in]	e_arg	callback function argument

Definition at line 367 of file nimble_npl_os.h.

ble_npl_callout_is_active()

static bool ble_npl_callout_is_active ( struct ble_npl_callout *  c )

inlinestatic

Check if callout is active.

Parameters

[in]

c

the callout to check

Returns

true if active, false otherwise

Definition at line 408 of file nimble_npl_os.h.

ble_npl_callout_remaining_ticks()

static ble_npl_time_t ble_npl_callout_remaining_ticks ( struct ble_npl_callout *  co, ble_npl_time_t  time  )

inlinestatic

Get the remaining ticks for callout expire.

Parameters

[in]	co	the callout to check
[in]	time	ignored

Returns

remaining ticks

Definition at line 431 of file nimble_npl_os.h.

ble_npl_callout_reset()

static ble_npl_error_t ble_npl_callout_reset ( struct ble_npl_callout *  c, ble_npl_time_t  ticks  )

inlinestatic

Reset the callout to fire off in 'ticks' ticks.

Parameters

[in]	c	callout to reset
[in]	ticks	number of ticks to wait before posting an event

Returns

0 on success, non-zero on failure

Definition at line 381 of file nimble_npl_os.h.

ble_npl_callout_set_arg()

static void ble_npl_callout_set_arg ( struct ble_npl_callout *  co, void *  arg  )

inlinestatic

Set the callout event argument.

Parameters

[in]	co	the callout
[in]	arg	callback function argument

Definition at line 445 of file nimble_npl_os.h.

ble_npl_callout_stop()

static void ble_npl_callout_stop ( struct ble_npl_callout *  c )

inlinestatic

Stops the callout from firing.

Parameters

[in]

c

the callout to stop

Definition at line 396 of file nimble_npl_os.h.

ble_npl_event_get_arg()

static void* ble_npl_event_get_arg ( struct ble_npl_event *  ev )

inlinestatic

Runs an event.

Parameters

[in]

ev

event to run

Definition at line 128 of file nimble_npl_os.h.

ble_npl_event_init()

static void ble_npl_event_init ( struct ble_npl_event *  ev, ble_npl_event_fn *  fn, void *  arg  )

inlinestatic

Init a event.

Parameters

[in]	ev	pointer to event to set
[in]	fn	event callback function
[in]	arg	event argument

Definition at line 105 of file nimble_npl_os.h.

ble_npl_event_is_queued()

static bool ble_npl_event_is_queued ( struct ble_npl_event *  ev )

inlinestatic

Check if event is in queue.

Parameters

[in]

ev

event to check

Returns

true if event is queues, false otherwise

Definition at line 118 of file nimble_npl_os.h.

ble_npl_event_run()

static void ble_npl_event_run ( struct ble_npl_event *  ev )

inlinestatic

Runs an event.

Parameters

[in]

ev

event to run

Definition at line 149 of file nimble_npl_os.h.

ble_npl_event_set_arg()

static void ble_npl_event_set_arg ( struct ble_npl_event *  ev, void *  arg  )

inlinestatic

Set the vent arg.

Parameters

[in]	ev	event
[in]	arg	arg to set event

Definition at line 139 of file nimble_npl_os.h.

ble_npl_eventq_deinit()

static void ble_npl_eventq_deinit ( struct ble_npl_eventq *  evq )

inlinestatic

Deinitialize an event queue.

Note

Not supported in RIOT

Parameters

[in]

evq

the event queue to deinit

Definition at line 181 of file nimble_npl_os.h.

ble_npl_eventq_get()

static struct ble_npl_event* ble_npl_eventq_get ( struct ble_npl_eventq *  evq, ble_npl_time_t  tmo  )

inlinestatic

Get next event from event queue, blocking.

Parameters

[in]	evq	the event queue to pull an event from
[in]	tmo	timeout, NPL_TIME_FOREVER to block, 0 to return immediately

Returns

the event from the queue

Definition at line 195 of file nimble_npl_os.h.

ble_npl_eventq_get_no_wait()

static struct ble_npl_event* ble_npl_eventq_get_no_wait ( struct ble_npl_eventq *  evq )

inlinestatic

Get next event from event queue, non-blocking.

Parameters

[in]

evq

the event queue to pull an event from

Returns

event from the queue, or NULL if none available.

Definition at line 208 of file nimble_npl_os.h.

ble_npl_eventq_init()

static void ble_npl_eventq_init ( struct ble_npl_eventq *  evq )

inlinestatic

Initialize the event queue.

Parameters

[in]

evq

The event queue to initialize

Definition at line 159 of file nimble_npl_os.h.

ble_npl_eventq_inited()

static int ble_npl_eventq_inited ( struct ble_npl_eventq *  evq )

inlinestatic

Check whether the event queue is initialized.

Parameters

[in]

evq

the event queue to check

Definition at line 169 of file nimble_npl_os.h.

ble_npl_eventq_is_empty()

static bool ble_npl_eventq_is_empty ( struct ble_npl_eventq *  evq )

inlinestatic

Check if queue is empty.

Parameters

[in]

evq

the event queue to check

Returns

true if empty, false otherwise

Definition at line 252 of file nimble_npl_os.h.

ble_npl_eventq_put()

static void ble_npl_eventq_put ( struct ble_npl_eventq *  evq, struct ble_npl_event *  ev  )

inlinestatic

Put an event on the event queue.

Parameters

[in]	evq	event queue
[in]	ev	event to put in queue

Definition at line 219 of file nimble_npl_os.h.

ble_npl_eventq_remove()

static void ble_npl_eventq_remove ( struct ble_npl_eventq *  evq, struct ble_npl_event *  ev  )

inlinestatic

Remove an event from the queue.

Parameters

[in]	evq	event queue to remove the event from
[in]	ev	event to remove from the queue

Definition at line 230 of file nimble_npl_os.h.

ble_npl_eventq_run()

static void ble_npl_eventq_run ( struct ble_npl_eventq *  evq )

inlinestatic

Gets and runs an event from the queue callback.

Parameters

[in]

evq

The event queue to pull the item off.

Definition at line 240 of file nimble_npl_os.h.

ble_npl_get_current_task_id()

static void* ble_npl_get_current_task_id ( void  )

inlinestatic

Return current thread PID.

Returns

PID

Definition at line 554 of file nimble_npl_os.h.

ble_npl_hw_enter_critical()

static uint32_t ble_npl_hw_enter_critical ( void  )

inlinestatic

Disable ISRs.

Returns

current isr context

Definition at line 524 of file nimble_npl_os.h.

ble_npl_hw_exit_critical()

static void ble_npl_hw_exit_critical ( uint32_t  ctx )

inlinestatic

Restores ISR context.

Parameters

[in]

ctx

ISR context to restore.

Definition at line 534 of file nimble_npl_os.h.

ble_npl_hw_is_in_critical()

static bool ble_npl_hw_is_in_critical ( void  )

inlinestatic

Check if is in critical section.

Returns

true, if in critical section, false otherwise

Definition at line 544 of file nimble_npl_os.h.

ble_npl_hw_set_isr()

static void ble_npl_hw_set_isr ( int  irqn, void(*)(void)  addr  )

inlinestatic

Set nrf5x radio ISR callback.

Parameters

[in]	irqn	IRQ number
[in]	addr	the ISR callback

Definition at line 565 of file nimble_npl_os.h.

ble_npl_mutex_init()

static ble_npl_error_t ble_npl_mutex_init ( struct ble_npl_mutex *  mu )

inlinestatic

Initializes a mutex object.

Parameters

[out]

mu

pre-allocated mutex structure, must not be NULL.

Definition at line 262 of file nimble_npl_os.h.

ble_npl_mutex_pend()

static ble_npl_error_t ble_npl_mutex_pend ( struct ble_npl_mutex *  mu, ble_npl_time_t  timeout  )

inlinestatic

Pend (wait) for a mutex.

Parameters

[in]	mu	Pointer to mutex.
[in]	timeout	Timeout, in os ticks. A timeout of 0 means do not wait if not available. A timeout of OS_TIMEOUT_NEVER means wait forever.

Returns

ble_npl_error_t BLE_NPL_INVALID_PARM mutex passed in was NULL BLE_NPL_OK no error

Definition at line 279 of file nimble_npl_os.h.

ble_npl_mutex_release()

static ble_npl_error_t ble_npl_mutex_release ( struct ble_npl_mutex *  mu )

inlinestatic

Release a mutex.

Returns

ble_npl_error_t BLE_NPL_INVALID_PARM mutex was NULL BLE_NPL_OK no error

Definition at line 292 of file nimble_npl_os.h.

ble_npl_os_started()

static bool ble_npl_os_started ( void  )

inlinestatic

Not used in RIOT.

Returns

Always true

Definition at line 93 of file nimble_npl_os.h.

ble_npl_sem_init()

static ble_npl_error_t ble_npl_sem_init ( struct ble_npl_sem *  sem, uint16_t  tokens  )

inlinestatic

Initialize a semaphore.

Parameters

[in]	sem	pointer to semaphore
[in]	tokens	# of tokens the semaphore should contain initially.

Returns

ble_npl_error_t BLE_NPL_INVALID_PARM Semaphore passed in was NULL. BLE_NPL_OK no error.

Definition at line 307 of file nimble_npl_os.h.

ble_npl_sem_pend()

static ble_npl_error_t ble_npl_sem_pend ( struct ble_npl_sem *  sem, ble_npl_time_t  timeout  )

inlinestatic

Pend (wait) for a semaphore.

Parameters

[in]	sem	pointer to semaphore.
[in]	timeout	timeout, in os ticks. A timeout of 0 means do not wait if not available. A timeout of BLE_NPL_TIMEOUT_NEVER means wait forever.

Returns

ble_npl_error_t BLE_NPL_INVALID_PARM semaphore passed in was NULL. BLE_NPL_TIMEOUT semaphore was owned by another task and timeout=0 BLE_NPL_OK no error

Definition at line 326 of file nimble_npl_os.h.

ble_npl_sem_release()

static ble_npl_error_t ble_npl_sem_release ( struct ble_npl_sem *  sem )

inlinestatic

Release a semaphore.

Parameters

[in]

sem

pointer to the semaphore to be released

Returns

ble_npl_error_t BLE_NPL_INVALID_PARM semaphore passed in was NULL. BLE_NPL_OK no error

Definition at line 340 of file nimble_npl_os.h.

ble_npl_time_delay()

static void ble_npl_time_delay ( ble_npl_time_t  ticks )

inlinestatic

Wait until the number of ticks has elapsed, BLOICKING.

Parameters

[in]

ticks

The number of ticks to wait.

Definition at line 514 of file nimble_npl_os.h.

ble_npl_time_get()

static ble_npl_time_t ble_npl_time_get ( void  )

inlinestatic

Returns the low 32 bits of cputime.

Returns

uint32_t The lower 32 bits of cputime

Definition at line 455 of file nimble_npl_os.h.

ble_npl_time_ms_to_ticks()

static ble_npl_error_t ble_npl_time_ms_to_ticks ( uint32_t  ms, ble_npl_time_t *  out_ticks  )

inlinestatic

Converts the given number of milliseconds into cputime ticks.

Parameters

[in]	ms	The number of milliseconds to convert to ticks
[out]	out_ticks	The number of ticks corresponding to 'ms'

Returns

ble_npl_error_t BLE_NPL_OK - no error

Definition at line 468 of file nimble_npl_os.h.

ble_npl_time_ms_to_ticks32()

static ble_npl_time_t ble_npl_time_ms_to_ticks32 ( uint32_t  ms )

inlinestatic

Converts the given number of milliseconds into cputime ticks.

Parameters

[in]

ms

The number of milliseconds to convert to ticks

Returns

uint32_t The number of ticks corresponding to 'ms'

Definition at line 493 of file nimble_npl_os.h.

ble_npl_time_ticks_to_ms()

static ble_npl_error_t ble_npl_time_ticks_to_ms ( ble_npl_time_t  ticks, uint32_t *  out_ms  )

inlinestatic

Convert the given number of ticks into milliseconds.

Parameters

[in]	ticks	The number of ticks to convert to milliseconds.
[out]	out_ms	The converted milliseconds from 'ticks'

Returns

ble_npl_error_t BLE_NPL_OK - no error

Definition at line 481 of file nimble_npl_os.h.

ble_npl_time_ticks_to_ms32()

static ble_npl_time_t ble_npl_time_ticks_to_ms32 ( ble_npl_time_t  ticks )

inlinestatic

Convert the given number of ticks into milliseconds.

Parameters

[in]

ticks

The number of ticks to convert to milliseconds.

Returns

uint32_t The number of milliseconds corresponding to 'ticks'

Definition at line 505 of file nimble_npl_os.h.