hi3120.c

hi3120芯片的配置代码

    gpio_i2c_write(I2C_HI3120,0x80,(data_temp & 0x07)); 
  
      /*********BT656_720x576I50_TO_800x600P60**********************/
      /* chip reset （4）*/
    /* reset each module */
    gpio_i2c_write(I2C_HI3120,0xff,0x00);
    gpio_i2c_write(I2C_HI3120,0x10,0x0f);
    gpio_i2c_write(I2C_HI3120,0x0f,0x10);
    gpio_i2c_write(I2C_HI3120,0x0f,0x00);
    /* clock set（8）*/
    gpio_i2c_write(I2C_HI3120,0xff,0x00);
    gpio_i2c_write(I2C_HI3120,0x00,0x06);
    gpio_i2c_write(I2C_HI3120,0x01,0x00);
    gpio_i2c_write(I2C_HI3120,0x03,0x08);
    gpio_i2c_write(I2C_HI3120,0x04,0x00);
    gpio_i2c_write(I2C_HI3120,0xff,0x00);
    gpio_i2c_write(I2C_HI3120,0x06,0x03);
    gpio_i2c_write(I2C_HI3120,0x07,0x01);
    /* VO output format（4） */
    gpio_i2c_write(I2C_HI3120,0xff,0x01);
    gpio_i2c_write(I2C_HI3120,0x80,0x00);
    gpio_i2c_write(I2C_HI3120,0x81,0x40);
    gpio_i2c_write(I2C_HI3120,0x82,0x0c);
    
    /* VO window */
    gpio_i2c_write(I2C_HI3120,0xd1,0x04);
    gpio_i2c_write(I2C_HI3120,0xd0,0x20);
    gpio_i2c_write(I2C_HI3120,0xd3,0x02);
    gpio_i2c_write(I2C_HI3120,0xd2,0x74);
    gpio_i2c_write(I2C_HI3120,0xd5,0x00);
    gpio_i2c_write(I2C_HI3120,0xd4,0xd8);
    gpio_i2c_write(I2C_HI3120,0xd7,0x03);
    gpio_i2c_write(I2C_HI3120,0xd6,0xf8);
    gpio_i2c_write(I2C_HI3120,0xd9,0x00);
    gpio_i2c_write(I2C_HI3120,0xd8,0x1b);
    gpio_i2c_write(I2C_HI3120,0xdb,0x02);
    gpio_i2c_write(I2C_HI3120,0xda,0x73);
    gpio_i2c_write(I2C_HI3120,0xdd,0x00);
    gpio_i2c_write(I2C_HI3120,0xdc,0xd8);
    gpio_i2c_write(I2C_HI3120,0xdf,0x03);
    gpio_i2c_write(I2C_HI3120,0xde,0xf8);
    gpio_i2c_write(I2C_HI3120,0xe1,0x00);
    gpio_i2c_write(I2C_HI3120,0xe0,0x1b);
    gpio_i2c_write(I2C_HI3120,0xe3,0x02);
    gpio_i2c_write(I2C_HI3120,0xe2,0x73);
    /* VI clock reset（5）*/
    gpio_i2c_write(I2C_HI3120,0xff,0x00);
    gpio_i2c_write(I2C_HI3120,0x10,0x0e);
    gpio_i2c_write(I2C_HI3120,0x0f,0x00);
    gpio_i2c_write(I2C_HI3120,0x0f,0x00);
    /* clock set（8）*/
    gpio_i2c_write(I2C_HI3120,0xff,0x00);
    gpio_i2c_write(I2C_HI3120,0x00,0x06);
    gpio_i2c_write(I2C_HI3120,0x01,0x00);
    gpio_i2c_write(I2C_HI3120,0x03,0x08);
    gpio_i2c_write(I2C_HI3120,0x04,0x00);
    gpio_i2c_write(I2C_HI3120,0xff,0x00);
    gpio_i2c_write(I2C_HI3120,0x06,0x03);
    gpio_i2c_write(I2C_HI3120,0x07,0x01);
    
    /* video format change flag bit = 1 (2) */
    gpio_i2c_write(I2C_HI3120,0xff,0x01);
    gpio_i2c_write(I2C_HI3120,0x82,0x2c);
    
    /* Input catch window and format（10）*/
    gpio_i2c_write(I2C_HI3120,0x00,0x92);
    gpio_i2c_write(I2C_HI3120,0x01,0x11);
    gpio_i2c_write(I2C_HI3120,0x03,0x00);
    gpio_i2c_write(I2C_HI3120,0x02,0x22);
    gpio_i2c_write(I2C_HI3120,0x05,0x02);
    gpio_i2c_write(I2C_HI3120,0x04,0xaa);
    gpio_i2c_write(I2C_HI3120,0x07,0x00);
    gpio_i2c_write(I2C_HI3120,0x06,0x07);
    gpio_i2c_write(I2C_HI3120,0x09,0x01);
    gpio_i2c_write(I2C_HI3120,0x08,0x19);
    
    /* DNR （6) */
    gpio_i2c_write(I2C_HI3120,0xff,0x00);
    gpio_i2c_write(I2C_HI3120,0x20,0x00);
    gpio_i2c_write(I2C_HI3120,0x21,0x24);
    gpio_i2c_write(I2C_HI3120,0x22,0x02);
    gpio_i2c_write(I2C_HI3120,0x23,0x88);
    gpio_i2c_write(I2C_HI3120,0x24,0x02);
    
    /* SDRAM control（16）*/
    gpio_i2c_write(I2C_HI3120,0x80,0x24);
    gpio_i2c_write(I2C_HI3120,0x81,0x02);
    gpio_i2c_write(I2C_HI3120,0x82,0x88);
    gpio_i2c_write(I2C_HI3120,0x83,0x02);
    gpio_i2c_write(I2C_HI3120,0x84,0x24);
    gpio_i2c_write(I2C_HI3120,0x85,0x02);
    gpio_i2c_write(I2C_HI3120,0x86,0x88);
    gpio_i2c_write(I2C_HI3120,0x87,0x02);
    gpio_i2c_write(I2C_HI3120,0x88,0x33);
    gpio_i2c_write(I2C_HI3120,0x89,0x00);
    gpio_i2c_write(I2C_HI3120,0x8a,0x07);
    gpio_i2c_write(I2C_HI3120,0x8b,0x67);
    gpio_i2c_write(I2C_HI3120,0x8c,0x2b);
    gpio_i2c_write(I2C_HI3120,0x8d,0x64);
    gpio_i2c_write(I2C_HI3120,0x8e,0x05);
    gpio_i2c_write(I2C_HI3120,0x8f,0x00);
    
    /* ITOP parameter（5）*/
    gpio_i2c_write(I2C_HI3120,0x40,0x00);
    gpio_i2c_write(I2C_HI3120,0x42,0x02);
    gpio_i2c_write(I2C_HI3120,0x41,0x88);
    gpio_i2c_write(I2C_HI3120,0x44,0x01);
    gpio_i2c_write(I2C_HI3120,0x43,0x12);
    
    /* SCALE parameter（53）*/
    gpio_i2c_write(I2C_HI3120,0xff,0x02);
    gpio_i2c_write(I2C_HI3120,0x83,0x00);
    gpio_i2c_write(I2C_HI3120,0x84,0xf4);
    gpio_i2c_write(I2C_HI3120,0x85,0x0c);
    gpio_i2c_write(I2C_HI3120,0x86,0xf4);
    gpio_i2c_write(I2C_HI3120,0x87,0x0c);
    gpio_i2c_write(I2C_HI3120,0x88,0xf4);
    gpio_i2c_write(I2C_HI3120,0x89,0x0c);
    gpio_i2c_write(I2C_HI3120,0x8a,0xf4);
    gpio_i2c_write(I2C_HI3120,0x8b,0x0c);
    gpio_i2c_write(I2C_HI3120,0x8c,0xf4);
    gpio_i2c_write(I2C_HI3120,0x8d,0x0c);
    gpio_i2c_write(I2C_HI3120,0x8e,0x9f);
    gpio_i2c_write(I2C_HI3120,0x8f,0x00);
    gpio_i2c_write(I2C_HI3120,0x90,0x3f);
    gpio_i2c_write(I2C_HI3120,0x91,0x01);
    gpio_i2c_write(I2C_HI3120,0x92,0xdf);
    gpio_i2c_write(I2C_HI3120,0x93,0x01);
    gpio_i2c_write(I2C_HI3120,0x94,0x7f);
    gpio_i2c_write(I2C_HI3120,0x95,0x02);
    gpio_i2c_write(I2C_HI3120,0x96,0x1e);
    gpio_i2c_write(I2C_HI3120,0x97,0x03);
    gpio_i2c_write(I2C_HI3120,0x98,0x87);
    gpio_i2c_write(I2C_HI3120,0x99,0x02);
    gpio_i2c_write(I2C_HI3120,0x9a,0x9c);
    gpio_i2c_write(I2C_HI3120,0x9b,0x0e);
    gpio_i2c_write(I2C_HI3120,0x9c,0x9c);
    gpio_i2c_write(I2C_HI3120,0x9d,0x0e);
    gpio_i2c_write(I2C_HI3120,0x9e,0x9c);
    gpio_i2c_write(I2C_HI3120,0x9f,0x0e);
    gpio_i2c_write(I2C_HI3120,0xa0,0x9c);
    gpio_i2c_write(I2C_HI3120,0xa1,0x0e);
    gpio_i2c_write(I2C_HI3120,0xa2,0x9c);
    gpio_i2c_write(I2C_HI3120,0xa3,0x0e);
    gpio_i2c_write(I2C_HI3120,0xa4,0x77);
    gpio_i2c_write(I2C_HI3120,0xa5,0x00);
    gpio_i2c_write(I2C_HI3120,0xa6,0xef);
    gpio_i2c_write(I2C_HI3120,0xa7,0x00);
    gpio_i2c_write(I2C_HI3120,0xa8,0x67);
    gpio_i2c_write(I2C_HI3120,0xa9,0x01);
    gpio_i2c_write(I2C_HI3120,0xaa,0xdf);
    gpio_i2c_write(I2C_HI3120,0xab,0x01);
    gpio_i2c_write(I2C_HI3120,0xac,0x57);
    gpio_i2c_write(I2C_HI3120,0xad,0x02);
    gpio_i2c_write(I2C_HI3120,0xae,0x23);
    gpio_i2c_write(I2C_HI3120,0xaf,0x02);
    gpio_i2c_write(I2C_HI3120,0xbf,0xff);
    gpio_i2c_write(I2C_HI3120,0xc0,0x00);
    gpio_i2c_write(I2C_HI3120,0xc1,0x00);
    gpio_i2c_write(I2C_HI3120,0xc2,0x00);
    gpio_i2c_write(I2C_HI3120,0xc3,0x00);
    gpio_i2c_write(I2C_HI3120,0xc4,0x00);
    gpio_i2c_write(I2C_HI3120,0xc5,0x00);
    
    /* clock reset（4） */
    gpio_i2c_write(I2C_HI3120,0xff,0x00);
    gpio_i2c_write(I2C_HI3120,0xff,0x00);
    gpio_i2c_write(I2C_HI3120,0x10,0x00);
    gpio_i2c_write(I2C_HI3120,0xff,0x00);
    
    /* video foramt is not change flag bit = 0 (3) */
    gpio_i2c_write(I2C_HI3120,0xff,0x01);
    //gpio_i2c_write(I2C_HI3120,0x01,0x13);
    gpio_i2c_write(I2C_HI3120,0x01,0x12);
    gpio_i2c_write(I2C_HI3120,0x82,0x0c);  

 
}    



static int hi3120_open(struct inode * inode, struct file * file)
{  

    return 0;    	

}  
   
/* 
 *Close device, Do nothing!
 */
static int hi3120_close(struct inode *inode ,struct file *file)
{  

    return 0;
}  
   
   
static int hi3120_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
{  
   
    	unsigned int __user *argp = (unsigned int __user *)arg;
        unsigned int temp;
        
        if(copy_from_user(&temp,argp,sizeof(temp)))
        {   
            return -EFAULT;
        }
        return 0;
       
}  
   
/* 
 *  The various file operations we support.
 */
   
static struct file_operations hi3120_fops = {
	.owner		= THIS_MODULE,
	.ioctl		= hi3120_ioctl,
	.open		= hi3120_open,
	.release	= hi3120_close
};
   
static struct miscdevice hi3120_dev = {
	MISC_DYNAMIC_MINOR,
	"hi3120",
	&hi3120_fops,
};
   
static int hi3120_device_init(void)
{  
        /* inite codec configs.*/
        unsigned char temp = 0;
   
        gpio_i2c_write(I2C_HI3120,0xff,0x00);
        temp = gpio_i2c_read(I2C_HI3120,0x00);
        gpio_i2c_write(I2C_HI3120,0x00,0xfe);
        if( gpio_i2c_read(I2C_HI3120,0x00) != 0xfe)
        {
            printk("init hi3120 error");
            return -1;
        }
        gpio_i2c_write(I2C_HI3120,0x00,temp);
        hi3120_reset(); 
        return 0;
}   	
   
DECLARE_KCOM_GPIO_I2C();
static int __init hi3120_init(void)
{  
    	unsigned int ret = 0;
    	ret = KCOM_GPIO_I2C_INIT();
       if(ret)
        {
          printk("GPIO I2C module is not load.\n");
          return -1;
        } 
    	ret = misc_register(&hi3120_dev);
    	if(ret)
    	{
    		KCOM_GPIO_I2C_EXIT();
    		printk("could not register hi3120 devices. \n");
    		return ret;
    	}
    	
     	if(hi3120_device_init()<0)
     	{
        	misc_deregister(&hi3120_dev);
        	KCOM_GPIO_I2C_EXIT();
        	printk("hi3120 driver init fail for device init error!\n");
        	return -1;
    	}  
        printk("hi3120 driver init successful!\n");
        return ret;   	
}     
   
static void __exit hi3120_exit(void)
{  
    misc_deregister(&hi3120_dev);
    printk("deregister hi3120");
    KCOM_GPIO_I2C_EXIT();
}  
   
module_init(hi3120_init);
module_exit(hi3120_exit);
   
#ifdef MODULE
#include <linux/compile.h>
#endif
   
MODULE_INFO(build, UTS_VERSION);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("hisilicon");