uvos/libeismultiplexer
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Add trigger functionality
Some checks failed
Build eismuliplexer for windows / Build (push) Has been cancelled
Build eismuliplexer for linux / Build (push) Has been cancelled

Browse source
This commit is contained in:
Carl Philipp Klemm 2025-10-07 15:16:23 +02:00
parent 5c42094b06
commit ba13899644
3 changed files with 197 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

52
eismultiplexer.h
View file

@ -54,6 +54,23 @@ typedef enum {
CHANNEL_NONE = 0,
} channel_t;
typedef enum
{
TRIGGER_INPUT = 0, /*** Trigger is high impedance and set as an input*/
TRIGGER_LOW, /*** Trigger output is logic low*/
TRIGGER_HIGH, /*** Trigger output is logic high*/
TRIGGER_STATE_COUNT
} trigger_state_t;
typedef enum
{
TRIGGER_WAIT_LOW = 0, /*** Waits until the trigger falls from high to low*/
TRIGGER_WAIT_HIGH, /*** Waits until the trigger rises from low to high*/
TRIGGER_WAIT_EDGE, /*** Waits until the trigger changes from low to high or high to low*/
TRIGGER_WAIT_LOW_LEVEL, /*** Waits until the trigger is low*/
TRIGGER_WAIT_HIGH_LEVEL /*** Waits until the trigger is high*/
} trigger_wait_t;
struct eismultiplexer {
struct usbshm* priv;
};
@ -113,6 +130,41 @@ channel_t eismultiplexer_get_connected(struct eismultiplexer* muliplexer);
*/
int eismultiplexer_set_led(struct eismultiplexer* muliplexer, bool on);
/**
* @brief Sets the state of the trigger pin
* @param multiplexer pointer to a eismultiplexer struct
* @param state state to put the trigger in
* @param index the index of the trigger to set
* @return 0 on success and < 0 on failure
*/
int eismultiplexer_set_trigger_state(struct eismultiplexer* muliplexer, uint16_t index, trigger_state_t state);
/**
* @brief Gets the logic level and state of the trigger pin
* @param multiplexer pointer to a eismultiplexer struct
* @param index the index of the trigger
* @param state a pointer where the current state of the trigger will be stored, can be NULL
* @param level a pointer where the current logic level of the trigger will be stored, only relevant if state is TRIGGER_INPUT, can be NULL
* @return 0 on success and < 0 on failure
*/
int eismultiplexer_get_trigger_state(struct eismultiplexer* muliplexer, uint16_t index, trigger_state_t* state, bool* level);
/**
* @brief Sets the state of the trigger pin
* @param multiplexer pointer to a eismultiplexer struct
* @param index the index of the trigger
* @param wait wait type
* @param timeout maximum time in milliseconds to wait
* @return 0 on success and < 0 on failure
*/
int eismultiplexer_wait_trigger(struct eismultiplexer* muliplexer, uint16_t index, trigger_wait_t wait, uint64_t timeout);
/**
* @brief gets the nummber of trigger pins available on the device
* @return the nummber of trigger pins on success and < 0 on failure
*/
int eismultiplexer_get_trigger_count(struct eismultiplexer* muliplexer);
/**
* @brief Gets the number of channels on the device
* @param multiplexer pointer to an eismultiplexer struct