1 files changed, 377 insertions, 0 deletions

diff --git a/drivers/media/video/bt866.c b/drivers/media/video/bt866.c
new file mode 100644
index 000000000000..05e42bbcfc3d
--- /dev/null
+++ b/drivers/media/video/bt866.c
@@ -0,0 +1,377 @@
+/*
+    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/init.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/pci.h>
+#include <linux/signal.h>
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/i2c.h>
+
+#include <linux/videodev.h>
+#include <asm/uaccess.h>
+
+#include <linux/video_encoder.h>
+
+MODULE_LICENSE("GPL");
+
+#define BT866_DEVNAME   "bt866"
+#define I2C_BT866       0x88
+
+MODULE_LICENSE("GPL");
+
+#define DEBUG(x)                /* Debug driver */
+
+/* ----------------------------------------------------------------------- */
+
+struct bt866 {
+        struct i2c_client *i2c;
+        int addr;
+        unsigned char reg[128];
+
+        int norm;
+        int enable;
+        int bright;
+        int contrast;
+        int hue;
+        int sat;
+};
+
+static int bt866_write(struct bt866 *dev,
+                        unsigned char subaddr, unsigned char data);
+
+static int bt866_do_command(struct bt866 *encoder,
+                        unsigned int cmd, void *arg)
+{
+        switch (cmd) {
+        case ENCODER_GET_CAPABILITIES:
+        {
+                struct video_encoder_capability *cap = arg;
+
+                DEBUG(printk
+                      (KERN_INFO "%s: get capabilities\n",
+                       encoder->i2c->name));
+
+                cap->flags
+                        = VIDEO_ENCODER_PAL
+                        | VIDEO_ENCODER_NTSC
+                        | VIDEO_ENCODER_CCIR;
+                cap->inputs = 2;
+                cap->outputs = 1;
+        }
+        break;
+
+        case ENCODER_SET_NORM:
+        {
+                int *iarg = arg;
+
+                DEBUG(printk(KERN_INFO "%s: set norm %d\n",
+                             encoder->i2c->name, *iarg));
+
+                switch (*iarg) {
+
+                case VIDEO_MODE_NTSC:
+                        break;
+
+                case VIDEO_MODE_PAL:
+                        break;
+
+                default:
+                        return -EINVAL;
+
+                }
+                encoder->norm = *iarg;
+        }
+        break;
+
+        case ENCODER_SET_INPUT:
+        {
+                int *iarg = arg;
+                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 */
+                };
+                int i;
+                u8 val;
+
+                for (i = 0; i < ARRAY_SIZE(init) / 2; i += 2)
+                        bt866_write(encoder, init[i], init[i+1]);
+
+                val = encoder->reg[0xdc];
+
+                if (*iarg == 0)
+                        val |= 0x40; /* CBSWAP */
+                else
+                        val &= ~0x40; /* !CBSWAP */
+
+                bt866_write(encoder, 0xdc, val);
+
+                val = encoder->reg[0xcc];
+                if (*iarg == 2)
+                        val |= 0x01; /* OSDBAR */
+                else
+                        val &= ~0x01; /* !OSDBAR */
+                bt866_write(encoder, 0xcc, val);
+
+                DEBUG(printk(KERN_INFO "%s: set input %d\n",
+                             encoder->i2c->name, *iarg));
+
+                switch (*iarg) {
+                case 0:
+                        break;
+                case 1:
+                        break;
+                default:
+                        return -EINVAL;
+
+                }
+        }
+        break;
+
+        case ENCODER_SET_OUTPUT:
+        {
+                int *iarg = arg;
+
+                DEBUG(printk(KERN_INFO "%s: set output %d\n",
+                             encoder->i2c->name, *iarg));
+
+                /* not much choice of outputs */
+                if (*iarg != 0)
+                        return -EINVAL;
+        }
+        break;
+
+        case ENCODER_ENABLE_OUTPUT:
+        {
+                int *iarg = arg;
+                encoder->enable = !!*iarg;
+
+                DEBUG(printk
+                      (KERN_INFO "%s: enable output %d\n",
+                       encoder->i2c->name, encoder->enable));
+        }
+        break;
+
+        case 4711:
+        {
+                int *iarg = arg;
+                __u8 val;
+
+                printk("bt866: square = %d\n", *iarg);
+
+                val = encoder->reg[0xdc];
+                if (*iarg)
+                        val |= 1; /* SQUARE */
+                else
+                        val &= ~1; /* !SQUARE */
+                bt866_write(encoder, 0xdc, val);
+                break;
+        }
+
+        default:
+                return -EINVAL;
+        }
+
+        return 0;
+}
+
+static int bt866_write(struct bt866 *encoder,
+                        unsigned char subaddr, unsigned char data)
+{
+        unsigned char buffer[2];
+        int err;
+
+        buffer[0] = subaddr;
+        buffer[1] = data;
+
+        encoder->reg[subaddr] = data;
+
+        DEBUG(printk
+              ("%s: write 0x%02X = 0x%02X\n",
+               encoder->i2c->name, subaddr, data));
+
+        for (err = 0; err < 3;) {
+                if (i2c_master_send(encoder->i2c, buffer, 2) == 2)
+                        break;
+                err++;
+                printk(KERN_WARNING "%s: I/O error #%d "
+                       "(write 0x%02x/0x%02x)\n",
+                       encoder->i2c->name, err, encoder->addr, subaddr);
+                schedule_timeout_interruptible(HZ/10);
+        }
+        if (err == 3) {
+                printk(KERN_WARNING "%s: giving up\n",
+                       encoder->i2c->name);
+                return -1;
+        }
+
+        return 0;
+}
+
+static int bt866_attach(struct i2c_adapter *adapter);
+static int bt866_detach(struct i2c_client *client);
+static int bt866_command(struct i2c_client *client,
+                         unsigned int cmd, void *arg);
+
+
+/* Addresses to scan */
+static unsigned short normal_i2c[]      = {I2C_BT866>>1, I2C_CLIENT_END};
+static unsigned short probe[2]          = {I2C_CLIENT_END, I2C_CLIENT_END};
+static unsigned short ignore[2]         = {I2C_CLIENT_END, I2C_CLIENT_END};
+
+static struct i2c_client_address_data addr_data = {
+        normal_i2c,
+        probe,
+        ignore,
+};
+
+static struct i2c_driver i2c_driver_bt866 = {
+        .driver.name = BT866_DEVNAME,
+        .id = I2C_DRIVERID_BT866,
+        .attach_adapter = bt866_attach,
+        .detach_client = bt866_detach,
+        .command = bt866_command
+};
+
+
+static struct i2c_client bt866_client_tmpl =
+{
+        .name = "(nil)",
+        .addr = 0,
+        .adapter = NULL,
+        .driver = &i2c_driver_bt866,
+        .usage_count = 0
+};
+
+static int bt866_found_proc(struct i2c_adapter *adapter,
+                            int addr, int kind)
+{
+        struct bt866 *encoder;
+        struct i2c_client *client;
+
+        client = kzalloc(sizeof(*client), GFP_KERNEL);
+        if (client == NULL)
+                return -ENOMEM;
+        memcpy(client, &bt866_client_tmpl, sizeof(*client));
+
+        encoder = kzalloc(sizeof(*encoder), GFP_KERNEL);
+        if (encoder == NULL) {
+                kfree(client);
+                return -ENOMEM;
+        }
+
+        i2c_set_clientdata(client, encoder);
+        client->adapter = adapter;
+        client->addr = addr;
+        sprintf(client->name, "%s-%02x", BT866_DEVNAME, adapter->id);
+
+        encoder->i2c = client;
+        encoder->addr = addr;
+        //encoder->encoder_type = ENCODER_TYPE_UNKNOWN;
+
+        /* initialize */
+
+        i2c_attach_client(client);
+
+        return 0;
+}
+
+static int bt866_attach(struct i2c_adapter *adapter)
+{
+        if (adapter->id == I2C_HW_B_ZR36067)
+                return i2c_probe(adapter, &addr_data, bt866_found_proc);
+        return 0;
+}
+
+static int bt866_detach(struct i2c_client *client)
+{
+        struct bt866 *encoder = i2c_get_clientdata(client);
+
+        i2c_detach_client(client);
+        kfree(encoder);
+        kfree(client);
+
+        return 0;
+}
+
+static int bt866_command(struct i2c_client *client,
+                         unsigned int cmd, void *arg)
+{
+        struct bt866 *encoder = i2c_get_clientdata(client);
+        return bt866_do_command(encoder, cmd, arg);
+}
+
+static int __devinit bt866_init(void)
+{
+        i2c_add_driver(&i2c_driver_bt866);
+        return 0;
+}
+
+static void __devexit bt866_exit(void)
+{
+        i2c_del_driver(&i2c_driver_bt866);
+}
+
+module_init(bt866_init);
+module_exit(bt866_exit);