On Thu, 18 Apr 2013, Marcio Campos de Lima wrote: > Hi Guennadi > > Thanks a lot for your attention. > I think I cannot apply the patches. My Linux sources, downloaded from > www.at91.com, does not have the V4l2-async.h header and, I suppose, many > others headers. The MT9P031 sources have been modified and it is in a > different tree. Can you tell me where I can download an already patched > Kernel 3.6.9 which I can add theses functionality to the driver I am using?
Hm, no, sorry, today isn't your lucky day. I don't think I can help you with a 3.6 kernel. Thanks Guennadi > By the way, our MT9P031 sensor board has 10-bit format. I have fixed > already. > > Regards > MArcio > > On 18/04/13 19:44, "Guennadi Liakhovetski" <g.liakhovet...@gmx.de> wrote: > > >Hi Marcio > > > >On Thu, 18 Apr 2013, Marcio Campos de Lima wrote: > > > >> >Hi > >> > > >> >I am porting the MT9P031 sensor device driver for a custom designed > >>board > >> >based at the AT91SAM9M45-EK development board and Linux 3.6.9. > >> >The driver detects the sensor but does not create /dev/video1. > >> > > >> >Can anybody help me? > > > >Congratulations, today is your lucky day :-) I've just posted a > >patch-series > > > >http://thread.gmane.org/gmane.linux.drivers.video-input-infrastructure/635 > >04 > > > >to do exactly what you need. Well, 99% of what you need :) With at91 > >you're using the atmel-isi soc-camera camera host driver. Shich isn't > >extended by this patch series to support the asynchronous subdevice > >registration, but it's rather easy to add, please, have a look at patch > >#15 for an example, based on the mx3_camera driver. Then there's a slight > >problem of mt9p031 only exporting 12-bit formats. You can "fix" it > >internally by substituting 8-bit formats (you are using 8 bits, right?) > >instead. We'll need a proper solution at some point. The last patch in > >the > >series shows how to add support for the mt9p031 sensor to a board. > > > >Anyway, give it a try, feel free to ask. > > > >Thanks > >Guennadi > > > >> >Thanks > >> >Marcio > >> > >> This is the probe code fo the driver if this can help: > >> > >> /* > >> > >>------------------------------------------------------------------------- > >>-- > >> -- > >> * Driver initialization and probing > >> */ > >> > >> static int mt9p031_probe(struct i2c_client *client, > >> const struct i2c_device_id *did) > >> { > >> struct mt9p031_platform_data *pdata = client->dev.platform_data; > >> struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); > >> struct mt9p031 *mt9p031; > >> unsigned int i; > >> int ret; > >> > >> if (pdata == NULL) { > >> dev_err(&client->dev, "No platform data\n"); > >> return -EINVAL; > >> } > >> > >> if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA)) { > >> dev_warn(&client->dev, > >> "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n"); > >> return -EIO; > >> } > >> > >> mt9p031 = kzalloc(sizeof(*mt9p031), GFP_KERNEL); > >> if (mt9p031 == NULL) > >> return -ENOMEM; > >> > >> mt9p031->pdata = pdata; > >> mt9p031->output_control = MT9P031_OUTPUT_CONTROL_DEF; > >> mt9p031->mode2 = MT9P031_READ_MODE_2_ROW_BLC; > >> > >> v4l2_ctrl_handler_init(&mt9p031->ctrls, ARRAY_SIZE(mt9p031_ctrls) + 4); > >> > >> v4l2_ctrl_new_std(&mt9p031->ctrls, &mt9p031_ctrl_ops, > >> V4L2_CID_EXPOSURE, MT9P031_SHUTTER_WIDTH_MIN, > >> MT9P031_SHUTTER_WIDTH_MAX, 1, > >> MT9P031_SHUTTER_WIDTH_DEF); > >> v4l2_ctrl_new_std(&mt9p031->ctrls, &mt9p031_ctrl_ops, > >> V4L2_CID_GAIN, MT9P031_GLOBAL_GAIN_MIN, > >> MT9P031_GLOBAL_GAIN_MAX, 1, MT9P031_GLOBAL_GAIN_DEF); > >> v4l2_ctrl_new_std(&mt9p031->ctrls, &mt9p031_ctrl_ops, > >> V4L2_CID_HFLIP, 0, 1, 1, 0); > >> v4l2_ctrl_new_std(&mt9p031->ctrls, &mt9p031_ctrl_ops, > >> V4L2_CID_VFLIP, 0, 1, 1, 0); > >> > >> for (i = 0; i < ARRAY_SIZE(mt9p031_ctrls); ++i) > >> v4l2_ctrl_new_custom(&mt9p031->ctrls, &mt9p031_ctrls[i], NULL); > >> > >> mt9p031->subdev.ctrl_handler = &mt9p031->ctrls; > >> > >> if (mt9p031->ctrls.error) > >> printk(KERN_INFO "%s: control initialization error %d\n", > >> __func__, mt9p031->ctrls.error); > >> > >> mutex_init(&mt9p031->power_lock); > >> v4l2_i2c_subdev_init(&mt9p031->subdev, client, &mt9p031_subdev_ops); > >> mt9p031->subdev.internal_ops = &mt9p031_subdev_internal_ops; > >> > >> mt9p031->pad.flags = MEDIA_PAD_FL_SOURCE; > >> ret = media_entity_init(&mt9p031->subdev.entity, 1, &mt9p031->pad, 0); > >> if (ret < 0) > >> goto done; > >> > >> mt9p031->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; > >> > >> mt9p031->crop.width = MT9P031_WINDOW_WIDTH_DEF; > >> mt9p031->crop.height = MT9P031_WINDOW_HEIGHT_DEF; > >> mt9p031->crop.left = MT9P031_COLUMN_START_DEF; > >> mt9p031->crop.top = MT9P031_ROW_START_DEF; > >> > >> if (mt9p031->pdata->version == MT9P031_MONOCHROME_VERSION) > >> mt9p031->format.code = V4L2_MBUS_FMT_Y12_1X12; > >> else > >> mt9p031->format.code = V4L2_MBUS_FMT_SGRBG12_1X12; > >> > >> mt9p031->format.width = MT9P031_WINDOW_WIDTH_DEF; > >> mt9p031->format.height = MT9P031_WINDOW_HEIGHT_DEF; > >> mt9p031->format.field = V4L2_FIELD_NONE; > >> mt9p031->format.colorspace = V4L2_COLORSPACE_SRGB; > >> isi_set_clk(); > >> mt9p031->pdata->ext_freq=21000000; > >> mt9p031->pdata->target_freq=48000000; > >> ret = mt9p031_pll_get_divs(mt9p031); > >> > >> done: > >> if (ret < 0) { > >> v4l2_ctrl_handler_free(&mt9p031->ctrls); > >> media_entity_cleanup(&mt9p031->subdev.entity); > >> kfree(mt9p031); > >> } > >> > >> return ret; > >> } > >> > >> > >> > >> -- > >> To unsubscribe from this list: send the line "unsubscribe linux-media" > >>in > >> the body of a message to majord...@vger.kernel.org > >> More majordomo info at http://vger.kernel.org/majordomo-info.html > >> > > > >--- > >Guennadi Liakhovetski, Ph.D. > >Freelance Open-Source Software Developer > >http://www.open-technology.de/ > > --- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/ -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
