[PATCH v4 22/24] fpga: dfl: afu: add FPGA_GET_API_VERSION/CHECK_EXTENSION ioctls support
From: Wu Hao <hidden>
Date: 2018-02-13 09:36:08
Also in:
linux-fpga, lkml
Subsystem:
fpga dfl drivers, fpga manager framework, the rest · Maintainers:
Xu Yilun, Moritz Fischer, Linus Torvalds
FPGA_GET_API_VERSION and FPGA_CHECK_EXTENSION ioctls are common ones which
need to be supported by all feature devices drivers including FME and AFU.
This patch implements above 2 ioctls in FPGA Accelerated Function Unit
(AFU) driver.
Signed-off-by: Tim Whisonant <redacted>
Signed-off-by: Enno Luebbers <redacted>
Signed-off-by: Shiva Rao <redacted>
Signed-off-by: Christopher Rauer <redacted>
Signed-off-by: Xiao Guangrong <redacted>
Signed-off-by: Wu Hao <redacted>
Acked-by: Alan Tull <atull@kernel.org>
Acked-by: Moritz Fischer <mdf@kernel.org>
---
v2: rebased
v3: rebased as driver renamed to fpga-dfl-afu
fix one checkpatch issue
v4: add Acked-by from Alan and Moritz.
---
drivers/fpga/dfl-afu-main.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/fpga/dfl-afu-main.c b/drivers/fpga/dfl-afu-main.c
index b2f8798..bead242 100644
--- a/drivers/fpga/dfl-afu-main.c
+++ b/drivers/fpga/dfl-afu-main.c@@ -121,6 +121,13 @@ static int afu_release(struct inode *inode, struct file *filp) return 0; } +static long afu_ioctl_check_extension(struct feature_platform_data *pdata, + unsigned long arg) +{ + /* No extension support for now */ + return 0; +} + static long afu_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { struct platform_device *pdev = filp->private_data;
@@ -131,6 +138,10 @@ static long afu_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) dev_dbg(&pdev->dev, "%s cmd 0x%x\n", __func__, cmd); switch (cmd) { + case FPGA_GET_API_VERSION: + return FPGA_API_VERSION; + case FPGA_CHECK_EXTENSION: + return afu_ioctl_check_extension(pdata, arg); default: /* * Let sub-feature's ioctl function to handle the cmd
--
2.7.4