1 files changed, 92 insertions, 0 deletions

diff --git a/drivers/media/video/gspca/m5602/m5602_ov7660.c b/drivers/media/video/gspca/m5602/m5602_ov7660.c
new file mode 100644
index 000000000000..466de667a60d
--- /dev/null
+++ b/drivers/media/video/gspca/m5602/m5602_ov7660.c
@@ -0,0 +1,92 @@
+/*
+ * Driver for the ov7660 sensor
+ *
+ * Copyright (C) 2009 Erik Andrén
+ * Copyright (C) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project.
+ * Copyright (C) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br>
+ *
+ * Portions of code to USB interface and ALi driver software,
+ * Copyright (c) 2006 Willem Duinker
+ * v4l2 interface modeled after the V4L2 driver
+ * for SN9C10x PC Camera Controllers
+ *
+ * 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, version 2.
+ *
+ */
+
+#include "m5602_ov7660.h"
+
+const static struct ctrl ov7660_ctrls[] = {};
+
+static struct v4l2_pix_format ov7660_modes[] = {
+        {
+                640,
+                480,
+                V4L2_PIX_FMT_SBGGR8,
+                V4L2_FIELD_NONE,
+                .sizeimage =
+                        640 * 480,
+                .bytesperline = 640,
+                .colorspace = V4L2_COLORSPACE_SRGB,
+                .priv = 0
+        }
+};
+
+static void ov7660_dump_registers(struct sd *sd);
+
+int ov7660_probe(struct sd *sd)
+{
+        return -ENODEV;
+}
+
+int ov7660_init(struct sd *sd)
+{
+        return 0;
+}
+
+int ov7660_start(struct sd *sd)
+{
+        return 0;
+}
+
+int ov7660_stop(struct sd *sd)
+{
+        return 0;
+}
+
+void ov7660_disconnect(struct sd *sd) {}
+
+static void ov7660_dump_registers(struct sd *sd)
+{
+        int address;
+        info("Dumping the ov7660 register state");
+        for (address = 0; address < 0xa9; address++) {
+                u8 value;
+                m5602_read_sensor(sd, address, &value, 1);
+                info("register 0x%x contains 0x%x",
+                     address, value);
+        }
+
+        info("ov7660 register state dump complete");
+
+        info("Probing for which registers that are read/write");
+        for (address = 0; address < 0xff; address++) {
+                u8 old_value, ctrl_value;
+                u8 test_value[2] = {0xff, 0xff};
+
+                m5602_read_sensor(sd, address, &old_value, 1);
+                m5602_write_sensor(sd, address, test_value, 1);
+                m5602_read_sensor(sd, address, &ctrl_value, 1);
+
+                if (ctrl_value == test_value[0])
+                        info("register 0x%x is writeable", address);
+                else
+                        info("register 0x%x is read only", address);
+
+                /* Restore original value */
+                m5602_write_sensor(sd, address, &old_value, 1);
+        }
+}
+