-/*
+/*
* bt856 - BT856A Digital Video Encoder (Rockwell Part)
*
* Copyright (C) 1999 Mike Bernson <mike@mlb.org>
#include <linux/major.h>
#include <linux/slab.h>
#include <linux/mm.h>
-#include <linux/pci.h>
#include <linux/signal.h>
+#include <linux/types.h>
+#include <linux/i2c.h>
+#include <linux/video_encoder.h>
#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/page.h>
-#include <linux/sched.h>
-#include <linux/types.h>
+#include <asm/uaccess.h>
#include <linux/videodev.h>
-#include <asm/uaccess.h>
MODULE_DESCRIPTION("Brooktree-856A video encoder driver");
MODULE_AUTHOR("Mike Bernson & Dave Perks");
MODULE_LICENSE("GPL");
-#include <linux/i2c.h>
-#include <linux/i2c-dev.h>
#define I2C_NAME(s) (s)->name
-#include <linux/video_encoder.h>
-static int debug = 0;
+static int debug;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "Debug level (0-1)");
/* ----------------------------------------------------------------------- */
-#define REG_OFFSET 0xCE
+#define REG_OFFSET 0xDA
+#define BT856_NR_REG 6
struct bt856 {
- unsigned char reg[32];
+ unsigned char reg[BT856_NR_REG];
int norm;
int enable;
- int bright;
- int contrast;
- int hue;
- int sat;
};
#define I2C_BT856 0x88
struct bt856 *encoder = i2c_get_clientdata(client);
printk(KERN_INFO "%s: register dump:", I2C_NAME(client));
- for (i = 0xd6; i <= 0xde; i += 2)
- printk(" %02x", encoder->reg[i - REG_OFFSET]);
+ for (i = 0; i < BT856_NR_REG; i += 2)
+ printk(" %02x", encoder->reg[i]);
printk("\n");
}
static unsigned short normal_i2c[] = { I2C_BT856 >> 1, I2C_CLIENT_END };
static unsigned short ignore = I2C_CLIENT_END;
-
+
static struct i2c_client_address_data addr_data = {
.normal_i2c = normal_i2c,
.probe = &ignore,
return 0;
client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
- if (client == 0)
+ if (!client)
return -ENOMEM;
client->addr = address;
client->adapter = adapter;