nuttx/nuttx-update
1
2
Fork 1
Code Issues 1 Pull requests 1 Projects Releases Packages Wiki Activity Actions

driver/capture: Add ioctl function for architecture specific ioctl commands

Browse source
This commit is contained in:
Eren Terzioglu 2024-12-13 14:39:33 +01:00 committed by Alan C. Assis
parent 620f4bc32f
commit 3894dc12b0
2 changed files with 95 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
drivers/timers/capture.c
View file

@ -391,6 +391,22 @@ static int cap_ioctl(FAR struct file *filep, int cmd, unsigned long arg)
default:
{
cperr("Forwarding unrecognized cmd: %d arg: %ld\n", cmd, arg);
/* Unrecognized cmd will be forwarded to lower half driver for
* specific use cases (e.g Pulse Counter (PCNT))
*/
FAR unsigned long int *ptr =
(FAR unsigned long int *)arg;
for (i = 0; i < upper->nchan; i++)
{
ret = lower[i]->ops->ioctl(lower[i], cmd,
(unsigned long)&ptr[i]);
if (ret < 0)
{
break;
}
}
}
break;
}

79
include/nuttx/timers/capture.h
View file

@ -36,11 +36,85 @@
/* IOCTL Commands ***********************************************************/
/* Command: CAPIOC_DUTYCYCLE
* Description: Get the pwm duty from the capture.
* Arguments: int8_t pointer to the location to return the duty.
* Return: Zero (OK) on success. Minus one will be returned on failure
* with the errno value set appropriately.
*/
#define CAPIOC_DUTYCYCLE _CAPIOC(1)
/* Command: CAPIOC_FREQUENCE
* Description: Get the pulse frequence from the capture.
* Arguments: int32_t pointer to the location to return the frequence.
* Return: Zero (OK) on success. Minus one will be returned on failure
* with the errno value set appropriately.
*/
#define CAPIOC_FREQUENCE _CAPIOC(2)
/* Command: CAPIOC_EDGES
* Description: Get the pwm edges from the capture.
* Arguments: int32_t pointer to the location to return the edges.
* Return: Zero (OK) on success. Minus one will be returned on failure
* with the errno value set appropriately.
*/
#define CAPIOC_EDGES _CAPIOC(3)
/* Command: CAPIOC_ALL
* Description: Get the pwm duty, pulse frequence, pwm edges, from
* the capture.
* Arguments: A reference to struct cap_all_s.
* Return: Zero (OK) on success. Minus one will be returned on failure
* with the errno value set appropriately.
*/
#define CAPIOC_ALL _CAPIOC(4)
/* Command: CAPIOC_PULSES
* Description: Read pulse count value.
* Arguments: Int pointer to the location to return the count value.
* Return: OK on success; ERROR on failure.
*/
#define CAPIOC_PULSES _CAPIOC(5)
/* Command: CAPIOC_CLR_CNT
* Description: Clear pulse count value. Stop counting and then starting
* back holds previous count value.
* Arguments: None.
* Return: OK on success; ERROR on failure.
*/
#define CAPIOC_CLR_CNT _CAPIOC(6)
/* Command: CAPIOC_FILTER
* Description: Configures glitch filter.
* Arguments: uint32_t for glitch filter value in ns
* or 0 for disable.
* Return: OK on success; ERROR on failure.
*/
#define CAPIOC_FILTER _CAPIOC(7)
/* Command: CAPIOC_HANDLER
* Description: Set user function on event callback.
* Arguments: xcpt_t type for callback function or NULL
* Return: OK on success; ERROR on failure.
*/
#define CAPIOC_HANDLER _CAPIOC(8)
/* Command: CAPIOC_ADD_WP
* Description: Add wacthpoint to unit.
* Arguments: Int value to watch.
* Return: OK on success; ERROR on failure.
*/
#define CAPIOC_ADD_WP _CAPIOC(9)
/****************************************************************************
* Public Types
****************************************************************************/
@ -83,6 +157,11 @@ struct cap_ops_s
CODE int (*getedges)(FAR struct cap_lowerhalf_s *lower,
FAR uint32_t *edges);
/* Lower-half logic may support platform-specific ioctl commands */
CODE int (*ioctl)(FAR struct cap_lowerhalf_s *dev,
int cmd, unsigned long arg);
};
/* This structure provides the publicly visible representation of the