On Fri, 19 Apr 2013, Marcio Lima wrote: > Hi > Which version can you help me? You can apply the patch series, that I pointed you out at yesterday on top of the v4l2-async branch of git://linuxtv.org/gliakhovetski/v4l-dvb.git which is based on some 3.9-rcX. Thanks Guennadi > 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/ > --- 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
