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pci_ivshmem.c: ivshmem_support_irq API support

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ivshmem based driver can use this api to judge weather current
ivshmem device support irq or not, and use polling mode or irq
mode to process the event.

Signed-off-by: wangyongrong <wangyongrong@xiaomi.com>
This commit is contained in:
wangyongrong 2024-04-29 17:19:33 +08:00 committed by Xiang Xiao
parent 99b6c77c79
commit ad2e6fb2ba
2 changed files with 23 additions and 0 deletions
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13
drivers/pci/pci_ivshmem.c
View file

@ -413,6 +413,19 @@ int ivshmem_control_irq(FAR struct ivshmem_device_s *dev, bool on)
return OK;
}
/****************************************************************************
* Name: ivshmem_support_irq
*
* Description:
* Judge if support ivshmem interrupt
*
****************************************************************************/
bool ivshmem_support_irq(FAR struct ivshmem_device_s *dev)
{
return dev->vmid != IVSHMEM_INVALID_VMID;
}
/****************************************************************************
* Name: ivshmem_kick_peer
*

10
include/nuttx/pci/pci_ivshmem.h
View file

@ -116,6 +116,16 @@ int ivshmem_detach_irq(FAR struct ivshmem_device_s *dev);
int ivshmem_control_irq(FAR struct ivshmem_device_s *dev, bool on);
/****************************************************************************
* Name: ivshmem_support_irq
*
* Description:
* judge if support ivshmem interrupt
*
****************************************************************************/
bool ivshmem_support_irq(FAR struct ivshmem_device_s *dev);
/****************************************************************************
* Name: ivshmem_kick_peer
*