[media] move i2c files into drivers/media/i2c

Move ancillary I2C drivers into drivers/media/i2c, in order to
better organize them.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 243 insertions, 0 deletions

diff --git a/drivers/media/i2c/bt866.c b/drivers/media/i2c/bt866.c
new file mode 100644
index 000000000000..905320b67a1c
--- /dev/null
+++ b/drivers/media/i2c/bt866.c
@@ -0,0 +1,243 @@
+/*
+    bt866 - BT866 Digital Video Encoder (Rockwell Part)
+
+    Copyright (C) 1999 Mike Bernson <mike@mlb.org>
+    Copyright (C) 1998 Dave Perks <dperks@ibm.net>
+
+    Modifications for LML33/DC10plus unified driver
+    Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
+
+    This code was modify/ported from the saa7111 driver written
+    by Dave Perks.
+
+    This code was adapted for the bt866 by Christer Weinigel and ported
+    to 2.6 by Martin Samuelsson.
+
+    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.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/ioctl.h>
+#include <asm/uaccess.h>
+#include <linux/i2c.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-chip-ident.h>
+
+MODULE_DESCRIPTION("Brooktree-866 video encoder driver");
+MODULE_AUTHOR("Mike Bernson & Dave Perks");
+MODULE_LICENSE("GPL");
+
+static int debug;
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "Debug level (0-1)");
+
+
+/* ----------------------------------------------------------------------- */
+
+struct bt866 {
+        struct v4l2_subdev sd;
+        u8 reg[256];
+};
+
+static inline struct bt866 *to_bt866(struct v4l2_subdev *sd)
+{
+        return container_of(sd, struct bt866, sd);
+}
+
+static int bt866_write(struct bt866 *encoder, u8 subaddr, u8 data)
+{
+        struct i2c_client *client = v4l2_get_subdevdata(&encoder->sd);
+        u8 buffer[2];
+        int err;
+
+        buffer[0] = subaddr;
+        buffer[1] = data;
+
+        encoder->reg[subaddr] = data;
+
+        v4l_dbg(1, debug, client, "write 0x%02x = 0x%02x\n", subaddr, data);
+
+        for (err = 0; err < 3;) {
+                if (i2c_master_send(client, buffer, 2) == 2)
+                        break;
+                err++;
+                v4l_warn(client, "error #%d writing to 0x%02x\n",
+                                err, subaddr);
+                schedule_timeout_interruptible(msecs_to_jiffies(100));
+        }
+        if (err == 3) {
+                v4l_warn(client, "giving up\n");
+                return -1;
+        }
+
+        return 0;
+}
+
+static int bt866_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
+{
+        v4l2_dbg(1, debug, sd, "set norm %llx\n", (unsigned long long)std);
+
+        /* Only PAL supported by this driver at the moment! */
+        if (!(std & V4L2_STD_NTSC))
+                return -EINVAL;
+        return 0;
+}
+
+static int bt866_s_routing(struct v4l2_subdev *sd,
+                           u32 input, u32 output, u32 config)
+{
+        static const __u8 init[] = {
+                0xc8, 0xcc, /* CRSCALE */
+                0xca, 0x91, /* CBSCALE */
+                0xcc, 0x24, /* YC16 | OSDNUM */
+                0xda, 0x00, /*  */
+                0xdc, 0x24, /* SETMODE | PAL */
+                0xde, 0x02, /* EACTIVE */
+
+                /* overlay colors */
+                0x70, 0xEB, 0x90, 0x80, 0xB0, 0x80, /* white */
+                0x72, 0xA2, 0x92, 0x8E, 0xB2, 0x2C, /* yellow */
+                0x74, 0x83, 0x94, 0x2C, 0xB4, 0x9C, /* cyan */
+                0x76, 0x70, 0x96, 0x3A, 0xB6, 0x48, /* green */
+                0x78, 0x54, 0x98, 0xC6, 0xB8, 0xB8, /* magenta */
+                0x7A, 0x41, 0x9A, 0xD4, 0xBA, 0x64, /* red */
+                0x7C, 0x23, 0x9C, 0x72, 0xBC, 0xD4, /* blue */
+                0x7E, 0x10, 0x9E, 0x80, 0xBE, 0x80, /* black */
+
+                0x60, 0xEB, 0x80, 0x80, 0xc0, 0x80, /* white */
+                0x62, 0xA2, 0x82, 0x8E, 0xc2, 0x2C, /* yellow */
+                0x64, 0x83, 0x84, 0x2C, 0xc4, 0x9C, /* cyan */
+                0x66, 0x70, 0x86, 0x3A, 0xc6, 0x48, /* green */
+                0x68, 0x54, 0x88, 0xC6, 0xc8, 0xB8, /* magenta */
+                0x6A, 0x41, 0x8A, 0xD4, 0xcA, 0x64, /* red */
+                0x6C, 0x23, 0x8C, 0x72, 0xcC, 0xD4, /* blue */
+                0x6E, 0x10, 0x8E, 0x80, 0xcE, 0x80, /* black */
+        };
+        struct bt866 *encoder = to_bt866(sd);
+        u8 val;
+        int i;
+
+        for (i = 0; i < ARRAY_SIZE(init) / 2; i += 2)
+                bt866_write(encoder, init[i], init[i+1]);
+
+        val = encoder->reg[0xdc];
+
+        if (input == 0)
+                val |= 0x40; /* CBSWAP */
+        else
+                val &= ~0x40; /* !CBSWAP */
+
+        bt866_write(encoder, 0xdc, val);
+
+        val = encoder->reg[0xcc];
+        if (input == 2)
+                val |= 0x01; /* OSDBAR */
+        else
+                val &= ~0x01; /* !OSDBAR */
+        bt866_write(encoder, 0xcc, val);
+
+        v4l2_dbg(1, debug, sd, "set input %d\n", input);
+
+        switch (input) {
+        case 0:
+        case 1:
+        case 2:
+                break;
+        default:
+                return -EINVAL;
+        }
+        return 0;
+}
+
+#if 0
+/* Code to setup square pixels, might be of some use in the future,
+   but is currently unused. */
+        val = encoder->reg[0xdc];
+        if (*iarg)
+                val |= 1; /* SQUARE */
+        else
+                val &= ~1; /* !SQUARE */
+        bt866_write(client, 0xdc, val);
+#endif
+
+static int bt866_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
+{
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+        return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_BT866, 0);
+}
+
+/* ----------------------------------------------------------------------- */
+
+static const struct v4l2_subdev_core_ops bt866_core_ops = {
+        .g_chip_ident = bt866_g_chip_ident,
+};
+
+static const struct v4l2_subdev_video_ops bt866_video_ops = {
+        .s_std_output = bt866_s_std_output,
+        .s_routing = bt866_s_routing,
+};
+
+static const struct v4l2_subdev_ops bt866_ops = {
+        .core = &bt866_core_ops,
+        .video = &bt866_video_ops,
+};
+
+static int bt866_probe(struct i2c_client *client,
+                        const struct i2c_device_id *id)
+{
+        struct bt866 *encoder;
+        struct v4l2_subdev *sd;
+
+        v4l_info(client, "chip found @ 0x%x (%s)\n",
+                        client->addr << 1, client->adapter->name);
+
+        encoder = kzalloc(sizeof(*encoder), GFP_KERNEL);
+        if (encoder == NULL)
+                return -ENOMEM;
+        sd = &encoder->sd;
+        v4l2_i2c_subdev_init(sd, client, &bt866_ops);
+        return 0;
+}
+
+static int bt866_remove(struct i2c_client *client)
+{
+        struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+        v4l2_device_unregister_subdev(sd);
+        kfree(to_bt866(sd));
+        return 0;
+}
+
+static const struct i2c_device_id bt866_id[] = {
+        { "bt866", 0 },
+        { }
+};
+MODULE_DEVICE_TABLE(i2c, bt866_id);
+
+static struct i2c_driver bt866_driver = {
+        .driver = {
+                .owner  = THIS_MODULE,
+                .name   = "bt866",
+        },
+        .probe          = bt866_probe,
+        .remove         = bt866_remove,
+        .id_table       = bt866_id,
+};
+
+module_i2c_driver(bt866_driver);