IMX53 - implementation of ADV7180

[cyrilcrocquesel]

Hi,

I work with the imx53 QSB and I tried to display a captured video signal gotten with an ADV7180 (using mxc_v4l2_tvin program test). I get the following error during  execution (command line mxc_v4l2_tvin.out -oh 768 -ow 1024) :

ERROR: v4l2 capture: mxc_v4l_dqueue timeout enc_counter 0

VIDIOC_DQBUF failed.

It seems the imx never get the end of frame interruption that is waited as output condition of this called (in modifying the cam->enc_counter value) :

wait_event_interruptible_timeout(cam->enc_queue,cam->enc_counter != 0, 10 * HZ)  //line 1269 from mxc_v4l2_capture.c

I don't find any information to solve this problem. Are there any suggestion?

I could provide log or other information if needed

Cordially

Cyril

[yennivenkateswa]

hi,

please observe these images, in this images some noise is there.

can you please tell me,why blur images are coming from my analog camera ?

and can you please tell me is it hardware issue or my driver issue ?

Thanks&Regards

Venkatesh

[yennivenkateswa]

hi Weidong sun,

when i run this command ./mxc_v4l2_tvin.out -ot 0 -ol 10 -ow 720 -oh 480 -m 2 without connect analog camera blue screen is coming. once i connect camera blur video coming. 

[weidong_sun]

Hi venkatesh,

    could you paste a picture of your video here, let me see it .

Regards,

Weidong

[yennivenkateswa]

hi Weidong sun,

[weidong_sun · Accepted solution]

Hello,Cyril,

     By default, In iMX53QSB BSP, ADV7180(we call it TV IN) is not supported, if you want it to support it, you will have to add corresponding codes to BSP file (linux/arch/arm/mx53_loco.c), the following code is tested and passed on i.mx51 platform. you can refer to them.

     Open mx53_loco.c file and do :

(1) define a GPIO for ADV7180 power and reset control

#define PAD_CVBS_PWDN    (1*32 + 22) /* GPIO_2_22 */

#define PAD_CVBS_RST    (1*32 + 23) /* GPIO_2_23 */

(2)IOMUX configuration for CSI0 or CSI1

static iomux_v3_cfg_t mx53_loco_pads[] = {

.....

/* CSI0 pins */
MX53_PAD_CSI0_DAT12__IPU_CSI0_D_12,
MX53_PAD_CSI0_DAT13__IPU_CSI0_D_13,
MX53_PAD_CSI0_DAT14__IPU_CSI0_D_14,
MX53_PAD_CSI0_DAT15__IPU_CSI0_D_15,
MX53_PAD_CSI0_DAT16__IPU_CSI0_D_16,
MX53_PAD_CSI0_DAT17__IPU_CSI0_D_17,
MX53_PAD_CSI0_DAT18__IPU_CSI0_D_18,
MX53_PAD_CSI0_DAT19__IPU_CSI0_D_19,

MX53_PAD_CSI0_VSYNC__IPU_CSI0_VSYNC,
MX53_PAD_CSI0_MCLK__IPU_CSI0_HSYNC,
MX53_PAD_CSI0_PIXCLK__IPU_CSI0_PIXCLK,

....

}

In mx53_loco.c, there is no CSI0_DAT12 pin, you will have to add it like above.

(3)define a function for power control

static void adv7180_pwdn(int pwdn)

{

gpio_request(PAD_CVBS_PWDN, "tvin-pwr");

if (pwdn)

  gpio_set_value(PAD_CVBS_PWDN, 0);

else

  gpio_set_value(PAD_CVBS_PWDN, 1);

gpio_free(PAD_CVBS_PWDN);

}

(4)define camera data

static struct mxc_camera_platform_data camera_data = {
.csi = 0,
};

static struct mxc_tvin_platform_data adv7180_data = {
.dvddio_reg = NULL,
.dvdd_reg = NULL,
.avdd_reg = NULL,
.pvdd_reg = NULL,
.pwdn = adv7180_pwdn,
.reset = NULL,
.cvbs = true,
};

(5)add ADV7180 to corresponding I2C BUS

static struct i2c_board_info soft_i2c0_dev_info[] __initdata = {

{

  .type = "adv7180",

  .addr = 0x20,

  .platform_data = (void *)&adv7180_data,

  },

};

(6)Power On and pull-up reset pin to High

In io_init function , do :

/* ADV7180 pwr on */

gpio_request(PAD_CVBS_PWDN, "tv-pwr-dn");

gpio_direction_output(PAD_CVBS_PWDN, 0);

/* ADV7180 Reset */

gpio_request(PAD_CVBS_RST, "cvbs-reset");

gpio_direction_output(PAD_CVBS_RST, 0);

msleep(10);

gpio_set_value(PAD_CVBS_RST,1);

(7)Register I2C device in function board_init()

i2c_register_board_info(1, mxc_i2c0_board_info,ARRAY_SIZE(mxc_i2c0_board_info));

(8)select ADV7180 when you run "make menuconfig".

Please notice, adv7180 driver is at "linux/drivers/media/video/mxc/capture/adv7180.c", don't select "linux/drivers/meida/video/adv7180.c"

Ok,Please try to test !

Regards,

Weidong

[yennivenkateswa]

hi,

i am using adv7180 driver as a reference

modprobe adv7180_camera

modprobe mxc_v4l2_capture

cd /unit_tests

lucid@lucid-desktop:/unit_tests$ ./mxc_v4l2_tvin.out -ot 0 -ol 10 -ow 720 -oh 480 -m 2

problem is iam getting blur video,can you please tell me why like this it is coming?

Thanks&regards

venkatesh

[weidong_sun]

Hi Venkatesh,

     It seems that the issue is generated by CVBS input, blue video means that ADV7180 has been working , so you should check if there are some issues with analog camera input.

Regards,

Weidong