/*
* tvp5150 - Texas Instruments TVP5150A/AM1 video decoder driver
*
* Copyright (c) 2005,2006 Mauro Carvalho Chehab (mchehab@infradead.org)
* This code is placed under the terms of the GNU General Public License v2
*/
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/videodev2.h>
#include <linux/delay.h>
#include <linux/module.h>
#include <media/v4l2-device.h>
#include <media/tvp5150.h>
#include <media/v4l2-chip-ident.h>
#include <media/v4l2-ctrls.h>
#include "tvp5150_reg.h"
#define TVP5150_H_MAX 720
#define TVP5150_V_MAX_525_60 480
#define TVP5150_V_MAX_OTHERS 576
#define TVP5150_MAX_CROP_LEFT 511
#define TVP5150_MAX_CROP_TOP 127
#define TVP5150_CROP_SHIFT 2
MODULE_DESCRIPTION("Texas Instruments TVP5150A video decoder driver");
MODULE_AUTHOR("Mauro Carvalho Chehab");
MODULE_LICENSE("GPL");
static int debug;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "Debug level (0-2)");
struct tvp5150 {
struct v4l2_subdev sd;
struct v4l2_ctrl_handler hdl;
struct v4l2_rect rect;
v4l2_std_id norm; /* Current set standard */
u32 input;
u32 output;
int enable;
};
static inline struct tvp5150 *to_tvp5150(struct v4l2_subdev *sd)
{
return container_of(sd, struct tvp5150, sd);
}
static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
{
return &container_of(ctrl->handler, struct tvp5150, hdl)->sd;
}
static int tvp5150_read(struct v4l2_subdev *sd, unsigned char addr)
{
struct i2c_client *c = v4l2_get_subdevdata(sd);
unsigned char buffer[1];
int rc;
buffer[0] = addr;
rc = i2c_master_send(c, buffer, 1);
if (rc < 0) {
v4l2_err(sd, "i2c i/o error: rc == %d (should be 1)\n", rc);
return rc;
}
msleep(10);
rc = i2c_master_recv(c, buffer, 1);
if (rc < 0) {
v4l2_err(sd, "i2c i/o error: rc == %d (should be 1)\n", rc);
return rc;
}
v4l2_dbg(2, debug, sd, "tvp5150: read 0x%02x = 0x%02x\n", addr, buffer[0]);
return (buffer[0]);
}
static inline void tvp5150_write(struct v4l2_subdev *sd, unsigned char addr,
unsigned char value)
{
struct i2c_client *c = v4l2_get_subdevdata(sd);
unsigned char buffer[2];
int rc;
buffer[0] = addr;
buffer[1] = value;
v4l2_dbg