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arch/risc-v: Add nonblock timeout support for LP-Mailbox

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Add nonblock timeout support for LP-Mailbox for esp32[-c6|-p4]

Signed-off-by: Eren Terzioglu <eren.terzioglu@espressif.com>
This commit is contained in:
Eren Terzioglu 2026-08-25 15:08:29 +02:00 • committed by Xiang Xiao
parent 87db6b21f8
commit fe89572632
1 changed files with 23 additions and 11 deletions
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34
arch/risc-v/src/common/espressif/esp_lp_mailbox.c
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@ -24,6 +24,9 @@
#include <nuttx/config.h>
#include <errno.h>
#include <fcntl.h>
#include <nuttx/arch.h>
#include <nuttx/irq.h>
@ -162,7 +165,7 @@ static int esp_lp_mailbox_read(struct file *filep,
{
struct inode *inode = filep->f_inode;
struct esp_lp_mailbox_priv_s *priv = inode->i_private;
lp_message_t msg;
uint32_t timeout = (filep->f_oflags & O_NONBLOCK) ? 0 : UINT32_MAX;
int i = 0;
int ret = OK;
lp_message_t recv;
@ -171,10 +174,19 @@ static int esp_lp_mailbox_read(struct file *filep,
while (i < buflen)
{
ret = lp_core_mailbox_receive(priv->mailbox, &recv, UINT32_MAX);
ret = lp_core_mailbox_receive(priv->mailbox, &recv, timeout);
if (ret != OK)
{
ferr("Failed to receive %dth byte\n", i + 1);
if (i == 0 && (filep->f_oflags & O_NONBLOCK) != 0)
{
return -EAGAIN;
}
if ((filep->f_oflags & O_NONBLOCK) == 0)
{
ferr("Failed to receive %dth byte\n", i + 1);
}
return i;
}
@ -296,15 +308,15 @@ static int esp_lp_mailbox_ioctl(struct file *filep,
priv->async_op = true;
}
if (ret != OK)
{
priv->async_op = false;
ferr("Could not register callback-%lx to lp-mailbox!\n",
(uint32_t)handler);
return ERROR;
}
if (ret != OK)
{
priv->async_op = false;
ferr("Could not register callback-%lx to lp-mailbox!\n",
(uint32_t)handler);
return ERROR;
}
priv->handler = handler;
priv->handler = handler;
break;
}