• Not Answered

omap3530 camera driver

       we use ov3640 interfaced with omap3530 8bit interface in devkit 1.0 ,I find that there is the driver for OV3640 in \drivers\media\video\ov36340.c and arch\arm\mach-omap2\board-ldp-camera.c, I have port board-ldp-camera.c  to my platform. I can get chip ID from OV3640 , I think the isp driver and OV3640 driver is developed for RAW 10bit interface, how do I modify it to support V4L2_PIX_FMT_UYVY (YUV 4:2:2)?

#define LDPCAM_USE_XCLKB 1

#define VAUX_1_8_V  0x05
#define VAUX_DEV_GRP_P1  0x20
#define VAUX_DEV_GRP_NONE 0x00

#if defined(CONFIG_VIDEO_OV3640) || defined(CONFIG_VIDEO_OV3640_MODULE)
#define OV3640_RESET_GPIO   98
#define OV3640_STANDBY_GPIO 7
#include <media/ov3640.h>
#include <../drivers/media/video/isp/ispcsi2.h>
#define OV3640_CSI2_CLOCK_POLARITY 0 /* +/- pin order */
#define OV3640_CSI2_DATA0_POLARITY 0 /* +/- pin order */
#define OV3640_CSI2_DATA1_POLARITY 0 /* +/- pin order */
#define OV3640_CSI2_CLOCK_LANE  1  /* Clock lane position: 1 */
#define OV3640_CSI2_DATA0_LANE  2  /* Data0 lane position: 2 */
#define OV3640_CSI2_DATA1_LANE  3  /* Data1 lane position: 3 */
#define OV3640_CSI2_PHY_THS_TERM 4
#define OV3640_CSI2_PHY_THS_SETTLE 14
#define OV3640_CSI2_PHY_TCLK_TERM 0
#define OV3640_CSI2_PHY_TCLK_MISS 1
#define OV3640_CSI2_PHY_TCLK_SETTLE 14

#define OV3640_BIGGEST_FRAME_BYTE_SIZE PAGE_ALIGN(2048 * 1536 * 2)

static struct omap34xxcam_sensor_config ov3640_hwc = {
 .sensor_isp = 0,
 .capture_mem = OV3640_BIGGEST_FRAME_BYTE_SIZE * 2,
 .ival_default = { 1, 15 },
};

static struct isp_interface_config ov3640_if_config = {
 .ccdc_par_ser = ISP_CSIA,
 .dataline_shift = 0x0,
 .hsvs_syncdetect = ISPCTRL_SYNC_DETECT_VSRISE,
 .strobe = 0x0,
 .prestrobe = 0x0,
 .shutter = 0x0,
 .prev_sph = 2,
 .prev_slv = 1,
 .wenlog = ISPCCDC_CFG_WENLOG_AND,
 .wait_hs_vs = 2,
 .u.csi.crc = 0x0,
 .u.csi.mode = 0x0,
 .u.csi.edge = 0x0,
 .u.csi.signalling = 0x0,
 .u.csi.strobe_clock_inv = 0x0,
 .u.csi.vs_edge = 0x0,
 .u.csi.channel = 0x1,
 .u.csi.vpclk = 0x1,
 .u.csi.data_start = 0x0,
 .u.csi.data_size = 0x0,
 .u.csi.format = V4L2_PIX_FMT_SGRBG10,
};

static int ov3640_sensor_set_prv_data(struct v4l2_int_device *s, void *priv)
{
 struct omap34xxcam_hw_config *hwc = priv;

 hwc->u.sensor.sensor_isp = ov3640_hwc.sensor_isp;
 hwc->dev_index = 1;
 hwc->dev_minor = 4;
 hwc->dev_type = OMAP34XXCAM_SLAVE_SENSOR;
 return 0;
}

static int ov3640_sensor_power_set(struct v4l2_int_device *s,
       enum v4l2_power power)
{
 struct omap34xxcam_videodev *vdev = s->u.slave->master->priv;
 struct isp_csi2_lanes_cfg lanecfg;
 struct isp_csi2_phy_cfg phyconfig;
 static enum v4l2_power previous_power = V4L2_POWER_OFF;

 if (!cam_inited) {
  printk(KERN_ERR "OV3640: Unable to control board GPIOs!\n");
  return -EFAULT;
 }

 switch (power) {
 case V4L2_POWER_ON:
  if (previous_power == V4L2_POWER_OFF)
   isp_csi2_reset();
  lanecfg.clk.pol = OV3640_CSI2_CLOCK_POLARITY;
  lanecfg.clk.pos = OV3640_CSI2_CLOCK_LANE;
  lanecfg.data[0].pol = OV3640_CSI2_DATA0_POLARITY;
  lanecfg.data[0].pos = OV3640_CSI2_DATA0_LANE;
  lanecfg.data[1].pol = OV3640_CSI2_DATA1_POLARITY;
  lanecfg.data[1].pos = OV3640_CSI2_DATA1_LANE;
  lanecfg.data[2].pol = 0;
  lanecfg.data[2].pos = 0;
  lanecfg.data[3].pol = 0;
  lanecfg.data[3].pos = 0;
  isp_csi2_complexio_lanes_config(&lanecfg);
  isp_csi2_complexio_lanes_update(true);

  phyconfig.ths_term = OV3640_CSI2_PHY_THS_TERM;
  phyconfig.ths_settle = OV3640_CSI2_PHY_THS_SETTLE;
  phyconfig.tclk_term = OV3640_CSI2_PHY_TCLK_TERM;
  phyconfig.tclk_miss = OV3640_CSI2_PHY_TCLK_MISS;
  phyconfig.tclk_settle = OV3640_CSI2_PHY_TCLK_SETTLE;
  isp_csi2_phy_config(&phyconfig);
  isp_csi2_phy_update(true);

  isp_configure_interface(vdev->cam->isp, &ov3640_if_config);

  if (previous_power == V4L2_POWER_OFF) {
   /* turn on analog power */
   twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
     VAUX_1_8_V, TWL4030_VAUX4_DEDICATED);
   twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
     VAUX_DEV_GRP_P1, TWL4030_VAUX4_DEV_GRP);
   udelay(100);
   /* Turn ON Omnivision sensor */
   gpio_set_value(OV3640_RESET_GPIO, 1);
   gpio_set_value(OV3640_STANDBY_GPIO, 0);
   udelay(100);

   /* RESET Omnivision sensor */
   gpio_set_value(OV3640_RESET_GPIO, 0);
   udelay(100);
   gpio_set_value(OV3640_RESET_GPIO, 1);
  }
  break;
 case V4L2_POWER_OFF:
  /* Power Down Sequence */
  isp_csi2_complexio_power(ISP_CSI2_POWER_OFF);
  twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
    VAUX_DEV_GRP_NONE, TWL4030_VAUX4_DEV_GRP);
  break;
 case V4L2_POWER_STANDBY:
  break;
 }
 previous_power = power;
 return 0;
}

Every guide or hint will be helpful! Regards,

Regards,

mike