driver/capture: Add ioctl function for architecture specific ioctl commands
This commit is contained in:
Eren Terzioglu
Alan C. Assis
parent
620f4bc32f
commit
3894dc12b0
2 changed files with 95 additions and 0 deletions
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@ -391,6 +391,22 @@ static int cap_ioctl(FAR struct file *filep, int cmd, unsigned long arg)
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default:
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default:
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{
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{
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cperr("Forwarding unrecognized cmd: %d arg: %ld\n", cmd, arg);
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cperr("Forwarding unrecognized cmd: %d arg: %ld\n", cmd, arg);
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/* Unrecognized cmd will be forwarded to lower half driver for
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* specific use cases (e.g Pulse Counter (PCNT))
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*/
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FAR unsigned long int *ptr =
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(FAR unsigned long int *)arg;
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for (i = 0; i < upper->nchan; i++)
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{
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ret = lower[i]->ops->ioctl(lower[i], cmd,
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(unsigned long)&ptr[i]);
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if (ret < 0)
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{
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break;
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}
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}
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}
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}
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break;
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break;
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}
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}
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@ -36,11 +36,85 @@
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/* IOCTL Commands ***********************************************************/
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/* IOCTL Commands ***********************************************************/
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/* Command: CAPIOC_DUTYCYCLE
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* Description: Get the pwm duty from the capture.
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* Arguments: int8_t pointer to the location to return the duty.
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* Return: Zero (OK) on success. Minus one will be returned on failure
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* with the errno value set appropriately.
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*/
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#define CAPIOC_DUTYCYCLE _CAPIOC(1)
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#define CAPIOC_DUTYCYCLE _CAPIOC(1)
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/* Command: CAPIOC_FREQUENCE
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* Description: Get the pulse frequence from the capture.
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* Arguments: int32_t pointer to the location to return the frequence.
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* Return: Zero (OK) on success. Minus one will be returned on failure
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* with the errno value set appropriately.
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*/
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#define CAPIOC_FREQUENCE _CAPIOC(2)
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#define CAPIOC_FREQUENCE _CAPIOC(2)
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/* Command: CAPIOC_EDGES
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* Description: Get the pwm edges from the capture.
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* Arguments: int32_t pointer to the location to return the edges.
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* Return: Zero (OK) on success. Minus one will be returned on failure
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* with the errno value set appropriately.
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*/
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#define CAPIOC_EDGES _CAPIOC(3)
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#define CAPIOC_EDGES _CAPIOC(3)
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/* Command: CAPIOC_ALL
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* Description: Get the pwm duty, pulse frequence, pwm edges, from
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* the capture.
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* Arguments: A reference to struct cap_all_s.
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* Return: Zero (OK) on success. Minus one will be returned on failure
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* with the errno value set appropriately.
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*/
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#define CAPIOC_ALL _CAPIOC(4)
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#define CAPIOC_ALL _CAPIOC(4)
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/* Command: CAPIOC_PULSES
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* Description: Read pulse count value.
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* Arguments: Int pointer to the location to return the count value.
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* Return: OK on success; ERROR on failure.
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*/
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#define CAPIOC_PULSES _CAPIOC(5)
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/* Command: CAPIOC_CLR_CNT
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* Description: Clear pulse count value. Stop counting and then starting
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* back holds previous count value.
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* Arguments: None.
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* Return: OK on success; ERROR on failure.
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*/
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#define CAPIOC_CLR_CNT _CAPIOC(6)
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/* Command: CAPIOC_FILTER
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* Description: Configures glitch filter.
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* Arguments: uint32_t for glitch filter value in ns
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* or 0 for disable.
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* Return: OK on success; ERROR on failure.
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*/
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#define CAPIOC_FILTER _CAPIOC(7)
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/* Command: CAPIOC_HANDLER
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* Description: Set user function on event callback.
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* Arguments: xcpt_t type for callback function or NULL
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* Return: OK on success; ERROR on failure.
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*/
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#define CAPIOC_HANDLER _CAPIOC(8)
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/* Command: CAPIOC_ADD_WP
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* Description: Add wacthpoint to unit.
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* Arguments: Int value to watch.
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* Return: OK on success; ERROR on failure.
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*/
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#define CAPIOC_ADD_WP _CAPIOC(9)
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/****************************************************************************
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/****************************************************************************
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* Public Types
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* Public Types
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****************************************************************************/
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****************************************************************************/
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@ -83,6 +157,11 @@ struct cap_ops_s
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CODE int (*getedges)(FAR struct cap_lowerhalf_s *lower,
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CODE int (*getedges)(FAR struct cap_lowerhalf_s *lower,
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FAR uint32_t *edges);
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FAR uint32_t *edges);
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/* Lower-half logic may support platform-specific ioctl commands */
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CODE int (*ioctl)(FAR struct cap_lowerhalf_s *dev,
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int cmd, unsigned long arg);
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};
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};
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/* This structure provides the publicly visible representation of the
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/* This structure provides the publicly visible representation of the
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