[prev in list] [next in list] [prev in thread] [next in thread] 

List:       linux-api
Subject:    [PATCH v2 20/22] fpga: intel: afu add FPGA_GET_API_VERSION/CHECK_EXTENSION ioctls support
From:       Wu Hao <hao.wu () intel ! com>
Date:       2017-06-26 1:52:16
Message-ID: 1498441938-14046-21-git-send-email-hao.wu () intel ! com
[Download RAW message or body]

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 Intel FPGA Accelerated Function
Unit (AFU) driver.

Signed-off-by: Tim Whisonant <tim.whisonant@intel.com>
Signed-off-by: Enno Luebbers <enno.luebbers@intel.com>
Signed-off-by: Shiva Rao <shiva.rao@intel.com>
Signed-off-by: Christopher Rauer <christopher.rauer@intel.com>
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
---
v2: rebased
---
 drivers/fpga/intel-afu-main.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/fpga/intel-afu-main.c b/drivers/fpga/intel-afu-main.c
index 2a17cde..22f77f2 100644
--- a/drivers/fpga/intel-afu-main.c
+++ b/drivers/fpga/intel-afu-main.c
@@ -122,6 +122,13 @@ 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;
@@ -132,6 +139,10 @@ 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
-- 
1.8.3.1

--
To unsubscribe from this list: send the line "unsubscribe linux-api" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
[prev in list] [next in list] [prev in thread] [next in thread]