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ISF
2.1
Intelligent Sensing Framework for Kinetis with Processor Expert
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API definitions, types, and macros for the Intelligent Sensing Framework (ISF) Bus Manager (BM). More...
Go to the source code of this file.
Macros | |
#define | MAX_BM_CALLBACKS (8) |
The maximum number of callbacks registered with the Bus Manager. More... | |
#define | MAX_BM_PERIOD_USEC (60 * 1000 * 1000) |
The maximum period of a callback is provided in microseconds. Attempting to register a callback period greater than this value results in an error. More... | |
#define | MIN_BM_PERIOD_USEC (100) |
The minimum period of a callback is provided in microseconds. Attempting to register a callback period less than this value results in an error. More... | |
#define | BM_TOKEN_VAL_MAX ((bm_callback_token_t)(1 << (MAX_BM_CALLBACKS-1))) |
The largest token value assigned to a bus management callback. More... | |
#define | BM_TOKEN_VAL_ERROR ((bm_callback_token_t)(1 << ((sizeof(bm_callback_token_t)*8)-1))) |
This value is returned when the token value for the BM callback is incorrect. More... | |
#define | BM_ERROR BM_TOKEN_VAL_ERROR |
This value specifies a general Bus Manager error. If an error occurs in registering a callback, this token error value is logically OR'd with the specific nature of the error and returned. More... | |
#define | BM_ALL_TOKENS ((bm_callback_token_t)((1 << MAX_BM_CALLBACKS)-1)) |
This value specifies an action to be taken on all callbacks registered with the Bus Manager. More... | |
Typedefs | |
typedef void( | bm_callback_t )(void *) |
Type for the prototype for a Bus Manager periodic callback function. More... | |
typedef uint32 | bm_callback_token_t |
This type defines the Bus Manager token. Each callback registered with the Bus Manager receives a unique token value of this type. Certain Bus Manager API calls require the token value as an input parameter such as bm_start(), bm_stop(), and bm_unregister_callback(). More... | |
Functions | |
isf_status_t | bm_init (void) |
This API initializes the Bus Manager. More... | |
bm_callback_token_t | bm_register_periodic_callback (isf_duration_t aPeriod, bm_callback_t *apCallback, void *apCbData) |
This API schedules a callback at the specified period. More... | |
isf_status_t | bm_unregister_callback (bm_callback_token_t aTokens) |
This API unregisters one or more callbacks. More... | |
isf_status_t | bm_start (boolean aSync, bm_callback_token_t aTokens) |
This API sets one or more callback(s) to the active state. More... | |
isf_status_t | bm_stop (bm_callback_token_t aTokens) |
This API stops one or more callback(s) by setting them to the inactive state. More... | |
uint32 | bm_get_num_callback (void) |
This API returns the number of callbacks registered. More... | |
void | isr_bm_callback_tmr (pointer dummy) |
API definitions, types, and macros for the Intelligent Sensing Framework (ISF) Bus Manager (BM).
Definition in file isf_bm.h.
#define BM_ALL_TOKENS ((bm_callback_token_t)((1 << MAX_BM_CALLBACKS)-1)) |
This value specifies an action to be taken on all callbacks registered with the Bus Manager.
Definition at line 62 of file isf_bm.h.
Referenced by bm_start(), and bm_stop().
#define BM_ERROR BM_TOKEN_VAL_ERROR |
This value specifies a general Bus Manager error. If an error occurs in registering a callback, this token error value is logically OR'd with the specific nature of the error and returned.
Definition at line 57 of file isf_bm.h.
Referenced by bm_register_periodic_callback(), bm_start(), bm_stop(), bm_unregister_callback(), fsl_fxas21002_i2cspi_3D_gyro_Configure(), fsl_fxas21002_i2cspi_3D_gyro_EndData(), fsl_fxas21002_i2cspi_3D_gyro_StartData(), fsl_fxls8471_i2cspi_3D_accel_Configure(), fsl_fxls8471_i2cspi_3D_accel_EndData(), fsl_fxls8471_i2cspi_3D_accel_StartData(), fsl_fxos8700_i2cspi_6D_AccMag_Configure(), fsl_fxos8700_i2cspi_6D_AccMag_EndData(), fsl_fxos8700_i2cspi_6D_AccMag_StartData(), fsl_mag3110_i2c_3D_mag_Configure(), fsl_mag3110_i2c_3D_mag_EndData(), fsl_mag3110_i2c_3D_mag_StartData(), fsl_mma865x_i2c_3D_accel_Configure(), fsl_mma865x_i2c_3D_accel_EndData(), fsl_mma865x_i2c_3D_accel_StartData(), fsl_mpl3115_i2c_1D_press_Configure(), fsl_mpl3115_i2c_1D_press_EndData(), and fsl_mpl3115_i2c_1D_press_StartData().
#define BM_TOKEN_VAL_ERROR ((bm_callback_token_t)(1 << ((sizeof(bm_callback_token_t)*8)-1))) |
#define BM_TOKEN_VAL_MAX ((bm_callback_token_t)(1 << (MAX_BM_CALLBACKS-1))) |
#define MAX_BM_CALLBACKS (8) |
The maximum number of callbacks registered with the Bus Manager.
Definition at line 29 of file isf_bm.h.
Referenced by bm_generate_token(), and bm_register_periodic_callback().
#define MAX_BM_PERIOD_USEC (60 * 1000 * 1000) |
The maximum period of a callback is provided in microseconds. Attempting to register a callback period greater than this value results in an error.
Definition at line 35 of file isf_bm.h.
Referenced by bm_find_smallest_active_period(), and bm_register_periodic_callback().
#define MIN_BM_PERIOD_USEC (100) |
The minimum period of a callback is provided in microseconds. Attempting to register a callback period less than this value results in an error.
Definition at line 41 of file isf_bm.h.
Referenced by bm_register_periodic_callback().
typedef void( bm_callback_t)(void *) |
typedef uint32 bm_callback_token_t |
This type defines the Bus Manager token. Each callback registered with the Bus Manager receives a unique token value of this type. Certain Bus Manager API calls require the token value as an input parameter such as bm_start(), bm_stop(), and bm_unregister_callback().
uint32 bm_get_num_callback | ( | void | ) |
This API returns the number of callbacks registered.
The number of registered callbacks is returned regardless of their state, active or inactive.
Definition at line 230 of file bus_management.c.
References bm_t::cb_list_cur_cnt, and sema_bm_access.
isf_status_t bm_init | ( | void | ) |
This API initializes the Bus Manager.
The Bus Manager requires a one time initialization at system startup performed by this API call. It creates and initializes internal variables. In addition, it installs an interrupt service routine for a hardware timer to be used by the Bus Manager to schedule callbacks.
ISF_SUCCESS | This value is returned if the initialization completed successfully. |
ISF_ERR_LIB_INIT | This value is returned if the interrupt service routine for the TPM timer used by the Bus Manager could not be installed. |
This API initializes the Bus Manager.
Definition at line 409 of file bus_management.c.
bm_callback_token_t bm_register_periodic_callback | ( | isf_duration_t | aPeriod, |
bm_callback_t * | apCallback, | ||
void * | apCbData | ||
) |
This API schedules a callback at the specified period.
The Bus Manager schedules periodic sensor data automatically. It allows a registered callback to be automatically invoked at the specified period. Multiple callbacks registered for the same frequency are executed serially by the Bus Manager. If registration of the callback is successful, the callback is set to the inactive state. The API function bm_start() can be called to make the callback active.
[in] | aPeriod | The period (1/frequency) between successive callback invocations in microseconds. |
[in] | apCallback | The pointer to the callback function to be registered. |
[in] | apCbData | The pointer passed to the callback function each time it is invoked. This pointer may be used to pass specific data to the callback function. |
COMM_ERROR_NULL_PTR | This error value and the most significant bit of the macro BM_ERROR is returned if the callback function pointer is NULL. |
COMM_ERROR_NOEXIST | This error value and the most significant bit of the macro BM_ERROR is returned if either of the following conditions are true:
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Definition at line 90 of file bus_management.c.
References BM_ALLOC_MEM_ZERO, BM_ERROR, bm_generate_token(), bm_sort_cb_list(), bm_t::cb_list_cur_cnt, bm_t::cb_token_registered_mask, COMM_ERROR_NOEXIST, COMM_ERROR_NULL_PTR, bm_cb_config_t::Cur_period, gBm_state_change, gpBm_cb_list, MAX_BM_CALLBACKS, MAX_BM_PERIOD_USEC, MIN_BM_PERIOD_USEC, bm_cb_config_t::nToken, bm_cb_config_t::pCallback, bm_cb_config_t::pCbData, bm_cb_config_t::Period, sema_bm_access, and TRUE.
Referenced by fsl_fxas21002_i2cspi_3D_gyro_Configure(), fsl_fxls8471_i2cspi_3D_accel_Configure(), fsl_fxos8700_i2cspi_6D_AccMag_Configure(), fsl_mag3110_i2c_3D_mag_Configure(), fsl_mma865x_i2c_3D_accel_Configure(), and fsl_mpl3115_i2c_1D_press_Configure().
isf_status_t bm_start | ( | boolean | aSync, |
bm_callback_token_t | aTokens | ||
) |
This API sets one or more callback(s) to the active state.
The start operation sets the callback(s) associated with the specified token values to the active state. A callback in the active state is invoked at its specified period. Multiple callbacks are specified by performing a logical OR of the token values. Any callbacks specified by this API call already in the active state, remain in the active state and their current timings are not affected. In addition to setting callbacks to the active state, this API can also synchronize the callback timings. The timings of all the active callbacks are reset to start running at the same time reference. The bm_stop() API call changes a callback to the inactive state.
[in] | aSync | The parameter is set to TRUE to reset the timings of the active callbacks and start them running at the same time reference. The parameter is set to FALSE to leave all active callback timings as they are. |
[in] | aTokens | This parameter specifies the token value(s) of callback(s) to be set to the active state. More than one callback is specified by performing a logical OR of the token values associated with the registered callbacks. |
ISF_SUCCESS | This value is returned if the callback(s) is set to the active state successfully. |
COMM_ERROR_NOEXIST | This value is returned if at least one of the token values specified is invalid because it is not associated with a registered callback. |
Definition at line 248 of file bus_management.c.
References BM_ALL_TOKENS, BM_ERROR, bm_reset_period(), bm_update_cb_list(), bmPITInstance, bm_t::cb_events, bm_t::cb_list_cur_cnt, bm_t::cb_token_active_mask, bm_t::cb_token_registered_mask, COMM_ERROR_NOEXIST, FALSE, ISF_SUCCESS, PitUserConfig::isInterruptEnabled, bm_t::pipeline_index, pit_hal_clear_interrupt_flag(), pit_hal_timer_reset(), pit_init_channel(), pit_init_module(), pit_set_timer_period_us(), pit_timer_start(), pit_timer_stop(), sema_bm_access, bm_t::time_keeper_usec, and TRUE.
Referenced by fsl_fxas21002_i2cspi_3D_gyro_StartData(), fsl_fxls8471_i2cspi_3D_accel_StartData(), fsl_fxos8700_i2cspi_6D_AccMag_StartData(), fsl_mag3110_i2c_3D_mag_StartData(), fsl_mma865x_i2c_3D_accel_StartData(), and fsl_mpl3115_i2c_1D_press_StartData().
isf_status_t bm_stop | ( | bm_callback_token_t | aTokens | ) |
This API stops one or more callback(s) by setting them to the inactive state.
The stop operation sets the the callback(s) associated with the specified token values to the inactive state. A callback in the inactive state is not invoked. Multiple callbacks are specified by performing a logical OR of the token values. Any callbacks specified by this API call already inactive will remain in the inactive state. To change a callback to the active state, the bm_start() API call is used.
[in] | aTokens | This parameter specifies the token value(s) of callback(s) to be set to the inactive state. More than one callback is specified by performing a logical OR of the token values associated with the registered callbacks. |
ISF_SUCCESS | The callback(s) stopped successfully. |
COMM_ERROR_NOEXIST | At least one of the token values specified is invalid because it is not associated with a registered callback. |
Definition at line 321 of file bus_management.c.
References BM_ALL_TOKENS, BM_ERROR, bm_t::cb_list_cur_cnt, bm_t::cb_token_active_mask, bm_t::cb_token_registered_mask, COMM_ERROR_NOEXIST, gBm_state_change, ISF_SUCCESS, sema_bm_access, and TRUE.
Referenced by fsl_fxas21002_i2cspi_3D_gyro_EndData(), fsl_fxls8471_i2cspi_3D_accel_EndData(), fsl_fxos8700_i2cspi_6D_AccMag_EndData(), fsl_mag3110_i2c_3D_mag_EndData(), fsl_mma865x_i2c_3D_accel_EndData(), and fsl_mpl3115_i2c_1D_press_EndData().
isf_status_t bm_unregister_callback | ( | bm_callback_token_t | aTokens | ) |
This API unregisters one or more callbacks.
The Bus Manager allows the removal of a registered callback. After a call to this function, unregistered callbacks no longer exist. To specify the callback to be unregistered, the token returned by bm_register_periodic_callback() is passed to bm_unregister_callback(). Multiple callbacks can be specified by performing a logical OR of the token values. The callback can be in the active or inactive state when it is unregistered.
[in] | aTokens | This parameter specifies the token value(s) of the callback(s) that are to be unregistered. More than one callback is specified by performing a logical OR of the token values associated with the registered callbacks. |
ISF_SUCCESS | This value is returned if the callbacks unregistered successfully. |
COMM_ERROR_NOEXIST | This value is returned if at least one of the token values specified in aTokens is invalid because it is not associated with a registered callback. |
Definition at line 170 of file bus_management.c.
References BM_ERROR, bm_find_cb(), BM_FREE_MEM, bm_t::cb_list_cur_cnt, bm_t::cb_token_active_mask, bm_t::cb_token_registered_mask, COMM_ERROR_NOEXIST, gBm_state_change, gpBm_cb_list, ISF_SUCCESS, sema_bm_access, and TRUE.
Referenced by fsl_fxas21002_i2cspi_3D_gyro_Shutdown(), fsl_fxls8471_i2cspi_3D_accel_Shutdown(), fsl_fxos8700_i2cspi_6D_AccMag_Shutdown(), fsl_mag3110_i2c_3D_mag_Shutdown(), fsl_mma865x_i2c_3D_accel_Shutdown(), and fsl_mpl3115_i2c_1D_press_Shutdown().
void isr_bm_callback_tmr | ( | pointer | dummy | ) |
Definition at line 523 of file bus_management.c.
References BM_PIPELINE_STAGES, bm_update_cb_list(), bmPITInstance, bm_t::cb_events, bm_cb_config_t::Cur_period, event_bm_callback, gBm_cb_occurred, gpBm_cb_list, isf_time_util_get_usec(), bm_t::pipeline_index, pit_set_timer_period_us(), PTE20, PTE21, PTE22, SetPortE_Gpio(), swdelay(), bm_t::time_keeper_usec, TIMER_TPM_GET_CNT, TIMER_TPM_START, and TRUE.
Referenced by BMTimer1_OnCounterRestart().