diff options
| author | Loic Poulain <loic.poulain@linaro.org> | 2020-11-03 20:23:53 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-11-06 03:54:01 +0300 |
| commit | d8c4a22363853e196497b06a8ee9be9773873a14 (patch) | |
| tree | 48872e93240e08ae2cd9ed7bed33d1e2f65aa417 /include/linux/mhi.h | |
| parent | 5aee9484df35033d1820382fa7b00efe32f10580 (diff) | |
| download | linux-d8c4a22363853e196497b06a8ee9be9773873a14.tar.xz | |
bus: mhi: Add mhi_queue_is_full function
This function can be used by client driver to determine whether it's
possible to queue new elements in a channel ring.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/1604424234-24446-1-git-send-email-loic.poulain@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux/mhi.h')
| -rw-r--r-- | include/linux/mhi.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/mhi.h b/include/linux/mhi.h index d4841e5a5f45..b9bb7dff32e2 100644 --- a/include/linux/mhi.h +++ b/include/linux/mhi.h @@ -737,4 +737,11 @@ int mhi_queue_buf(struct mhi_device *mhi_dev, enum dma_data_direction dir, int mhi_queue_skb(struct mhi_device *mhi_dev, enum dma_data_direction dir, struct sk_buff *skb, size_t len, enum mhi_flags mflags); +/** + * mhi_queue_is_full - Determine whether queueing new elements is possible + * @mhi_dev: Device associated with the channels + * @dir: DMA direction for the channel + */ +bool mhi_queue_is_full(struct mhi_device *mhi_dev, enum dma_data_direction dir); + #endif /* _MHI_H_ */ |