Hi Which version can you help me? Enviado via iPhone Em 19/04/2013, às 09:42, Guennadi Liakhovetski <g.liakhovetski@xxxxxx> escreveu: > 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.liakhovetski@xxxxxx> 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 majordomo@xxxxxxxxxxxxxxx >>>> 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 majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
