Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / media / pci / cx23885 / cx23885-ioctl.c

diff --git a/kernel/drivers/media/pci/cx23885/cx23885-ioctl.c b/kernel/drivers/media/pci/cx23885/cx23885-ioctl.c
new file mode 100644 (file)
index 0000000..d2cdd40
--- /dev/null
+++ b/kernel/drivers/media/pci/cx23885/cx23885-ioctl.c
@@ -0,0 +1,108 @@
+/*
+ *  Driver for the Conexant CX23885/7/8 PCIe bridge
+ *
+ *  Various common ioctl() support functions
+ *
+ *  Copyright (c) 2009 Andy Walls <awalls@md.metrocast.net>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *
+ *  GNU General Public License for more details.
+ */
+
+#include "cx23885.h"
+#include "cx23885-ioctl.h"
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+int cx23885_g_chip_info(struct file *file, void *fh,
+                        struct v4l2_dbg_chip_info *chip)
+{
+       struct cx23885_dev *dev = video_drvdata(file);
+
+       if (chip->match.addr > 1)
+               return -EINVAL;
+       if (chip->match.addr == 1) {
+               if (dev->v4l_device == NULL)
+                       return -EINVAL;
+               strlcpy(chip->name, "cx23417", sizeof(chip->name));
+       } else {
+               strlcpy(chip->name, dev->v4l2_dev.name, sizeof(chip->name));
+       }
+       return 0;
+}
+
+static int cx23417_g_register(struct cx23885_dev *dev,
+                             struct v4l2_dbg_register *reg)
+{
+       u32 value;
+
+       if (dev->v4l_device == NULL)
+               return -EINVAL;
+
+       if ((reg->reg & 0x3) != 0 || reg->reg >= 0x10000)
+               return -EINVAL;
+
+       if (mc417_register_read(dev, (u16) reg->reg, &value))
+               return -EINVAL; /* V4L2 spec, but -EREMOTEIO really */
+
+       reg->size = 4;
+       reg->val = value;
+       return 0;
+}
+
+int cx23885_g_register(struct file *file, void *fh,
+                      struct v4l2_dbg_register *reg)
+{
+       struct cx23885_dev *dev = video_drvdata(file);
+
+       if (reg->match.addr > 1)
+               return -EINVAL;
+       if (reg->match.addr)
+               return cx23417_g_register(dev, reg);
+
+       if ((reg->reg & 0x3) != 0 || reg->reg >= pci_resource_len(dev->pci, 0))
+               return -EINVAL;
+
+       reg->size = 4;
+       reg->val = cx_read(reg->reg);
+       return 0;
+}
+
+static int cx23417_s_register(struct cx23885_dev *dev,
+                             const struct v4l2_dbg_register *reg)
+{
+       if (dev->v4l_device == NULL)
+               return -EINVAL;
+
+       if ((reg->reg & 0x3) != 0 || reg->reg >= 0x10000)
+               return -EINVAL;
+
+       if (mc417_register_write(dev, (u16) reg->reg, (u32) reg->val))
+               return -EINVAL; /* V4L2 spec, but -EREMOTEIO really */
+       return 0;
+}
+
+int cx23885_s_register(struct file *file, void *fh,
+                      const struct v4l2_dbg_register *reg)
+{
+       struct cx23885_dev *dev = video_drvdata(file);
+
+       if (reg->match.addr > 1)
+               return -EINVAL;
+       if (reg->match.addr)
+               return cx23417_s_register(dev, reg);
+
+       if ((reg->reg & 0x3) != 0 || reg->reg >= pci_resource_len(dev->pci, 0))
+               return -EINVAL;
+
+       cx_write(reg->reg, reg->val);
+       return 0;
+}
+#endif