Mirrors_Framework/nuttx
1
0
Fork 0
mirror of https://github.com/apache/nuttx.git synced 2025-12-07 01:44:23 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

arch/risc-v/espressif: add PWM capture getedges function

Browse Source 
Create esp_capture_getedges function which was missing from
the capture API.

Signed-off-by: Filipe Cavalcanti <filipe.cavalcanti@espressif.com>
This commit is contained in:
Filipe Cavalcanti
2025-11-27 10:43:26 -03:00
committed by Xiang Xiao
parent 027bc43df7
commit 0158eda813
1 changed files with 40 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
arch/risc-v/src/common/espressif/esp_mcpwm.c
View File

@@ -200,9 +200,10 @@ struct mcpwm_motor_lowerhalf_s
struct mcpwm_capture_event_data_s
{
uint32_t pos_edge_count;
uint32_t neg_edge_count;
uint32_t last_pos_edge_count;
uint32_t pos_edge_count; /* Counter value on positive edge */
uint32_t neg_edge_count; /* Counter value on negative edge */
uint32_t last_pos_edge_count; /* Last counter value on positive edge */
uint32_t pos_edge_square_count; /* Number of positive edges */
};
/* Lowe-half data structure for a capture channel */
@@ -248,6 +249,8 @@ static int esp_capture_getduty(struct cap_lowerhalf_s *lower,
uint8_t *duty);
static int esp_capture_getfreq(struct cap_lowerhalf_s *lower,
uint32_t *freq);
static int esp_capture_getedges(struct cap_lowerhalf_s *lower,
uint32_t *edges);
#endif
/* MCPWM Motor Control */
@@ -362,6 +365,7 @@ static const struct cap_ops_s mcpwm_cap_ops =
.stop = esp_capture_stop,
.getduty = esp_capture_getduty,
.getfreq = esp_capture_getfreq,
.getedges = esp_capture_getedges,
};
/* Data structures for the available capture channels */
@@ -1467,6 +1471,7 @@ static int esp_capture_start(struct cap_lowerhalf_s *lower)
priv->isr_count = 0;
priv->enabled = true;
priv->ready = false;
priv->data->pos_edge_square_count = 0;
spin_unlock_irqrestore(&priv->common->mcpwm_spinlock, flags);
cpinfo("Channel enabled: %d\n", priv->channel_id);
@@ -1577,6 +1582,37 @@ static int esp_capture_getfreq(struct cap_lowerhalf_s *lower,
}
#endif
/****************************************************************************
* Name: esp_capture_getedges
*
* Description:
* This function is a requirement of the upper-half driver. Returns
* the last edges count value.
*
* Input Parameters:
* lower - Pointer to the capture channel lower-half data structure.
* edges - uint32_t pointer where the edges count value is written.
*
* Returned Value:
* Returns OK on success.
*
****************************************************************************/
#ifdef CONFIG_ESP_MCPWM_CAPTURE
static int esp_capture_getedges(struct cap_lowerhalf_s *lower,
uint32_t *edges)
{
struct mcpwm_cap_channel_lowerhalf_s *priv = (
struct mcpwm_cap_channel_lowerhalf_s *)lower;
DEBUGASSERT(priv != NULL);
*edges = priv->data->pos_edge_square_count;
cpinfo("Get edges called from channel %d\n", priv->channel_id);
return OK;
}
#endif
/****************************************************************************
* Name: esp_mcpwm_group_start
*
@@ -1847,6 +1883,7 @@ static int IRAM_ATTR mcpwm_driver_isr_default(int irq, void *context,
data->last_pos_edge_count = data->pos_edge_count;
data->pos_edge_count = cap_value;
data->neg_edge_count = data->pos_edge_count;
data->pos_edge_square_count++;
mcpwm_ll_capture_enable_negedge(common->hal.dev,
lower->channel_id,
true);