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Date: Mon, 1 Oct 2012 15:41:35 +0530
From: Prabhakar Lad <prabhakar.csengg@...il.com>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc: LMML <linux-media@...r.kernel.org>,
DLOS <davinci-linux-open-source@...ux.davincidsp.com>,
Manjunath Hadli <manjunath.hadli@...com>,
VGER <linux-kernel@...r.kernel.org>,
"Lad, Prabhakar" <prabhakar.lad@...com>,
Sakari Ailus <sakari.ailus@....fi>,
Paul Gortmaker <paul.gortmaker@...driver.com>,
Jean Delvare <khali@...ux-fr.org>
Subject: Re: [PATCH v3] media: mt9p031/mt9t001/mt9v032: use
V4L2_CID_TEST_PATTERN for test pattern control
Hi Laurent,
Thanks for the review.
On Mon, Oct 1, 2012 at 3:12 PM, Laurent Pinchart
<laurent.pinchart@...asonboard.com> wrote:
> Hi Prabhakar,
>
> Thanks for the patch.
>
> On Monday 01 October 2012 13:31:59 Prabhakar wrote:
>> From: Lad, Prabhakar <prabhakar.lad@...com>
>>
>> Signed-off-by: Lad, Prabhakar <prabhakar.lad@...com>
>> Signed-off-by: Manjunath Hadli <manjunath.hadli@...com>
>> Cc: Laurent Pinchart <laurent.pinchart@...asonboard.com>
>> Cc: Sakari Ailus <sakari.ailus@....fi>
>> Cc: Paul Gortmaker <paul.gortmaker@...driver.com>
>> Cc: Jean Delvare <khali@...ux-fr.org>
>> ---
>> Changes for v3:
>> 1: Used cluster in mt9v032 for test pattern,
>> pointed by Laurent.
>>
>> Changes for v2:
>> 1: Fixed review comments pointed by Laurent.
>>
>> drivers/media/i2c/mt9p031.c | 19 +++----------
>> drivers/media/i2c/mt9t001.c | 22 ++++++++++-----
>> drivers/media/i2c/mt9v032.c | 60 +++++++++++++++++++++++++---------------
>> 3 files changed, 58 insertions(+), 43 deletions(-)
>>
>> diff --git a/drivers/media/i2c/mt9p031.c b/drivers/media/i2c/mt9p031.c
>> index 2c0f407..e328332 100644
>> --- a/drivers/media/i2c/mt9p031.c
>> +++ b/drivers/media/i2c/mt9p031.c
>> @@ -574,7 +574,6 @@ static int mt9p031_set_crop(struct v4l2_subdev *subdev,
>> * V4L2 subdev control operations
>> */
>>
>> -#define V4L2_CID_TEST_PATTERN (V4L2_CID_USER_BASE | 0x1001)
>> #define V4L2_CID_BLC_AUTO (V4L2_CID_USER_BASE | 0x1002)
>> #define V4L2_CID_BLC_TARGET_LEVEL (V4L2_CID_USER_BASE | 0x1003)
>> #define V4L2_CID_BLC_ANALOG_OFFSET (V4L2_CID_USER_BASE | 0x1004)
>> @@ -740,18 +739,6 @@ static const char * const mt9p031_test_pattern_menu[] =
>> { static const struct v4l2_ctrl_config mt9p031_ctrls[] = {
>> {
>> .ops = &mt9p031_ctrl_ops,
>> - .id = V4L2_CID_TEST_PATTERN,
>> - .type = V4L2_CTRL_TYPE_MENU,
>> - .name = "Test Pattern",
>> - .min = 0,
>> - .max = ARRAY_SIZE(mt9p031_test_pattern_menu) - 1,
>> - .step = 0,
>> - .def = 0,
>> - .flags = 0,
>> - .menu_skip_mask = 0,
>> - .qmenu = mt9p031_test_pattern_menu,
>> - }, {
>> - .ops = &mt9p031_ctrl_ops,
>> .id = V4L2_CID_BLC_AUTO,
>> .type = V4L2_CTRL_TYPE_BOOLEAN,
>> .name = "BLC, Auto",
>> @@ -950,7 +937,7 @@ static int mt9p031_probe(struct i2c_client *client,
>> mt9p031->model = did->driver_data;
>> mt9p031->reset = -1;
>>
>> - v4l2_ctrl_handler_init(&mt9p031->ctrls, ARRAY_SIZE(mt9p031_ctrls) + 5);
>> + v4l2_ctrl_handler_init(&mt9p031->ctrls, ARRAY_SIZE(mt9p031_ctrls) + 6);
>>
>> v4l2_ctrl_new_std(&mt9p031->ctrls, &mt9p031_ctrl_ops,
>> V4L2_CID_EXPOSURE, MT9P031_SHUTTER_WIDTH_MIN,
>> @@ -966,6 +953,10 @@ static int mt9p031_probe(struct i2c_client *client,
>> v4l2_ctrl_new_std(&mt9p031->ctrls, &mt9p031_ctrl_ops,
>> V4L2_CID_PIXEL_RATE, pdata->target_freq,
>> pdata->target_freq, 1, pdata->target_freq);
>> + v4l2_ctrl_new_std_menu_items(&mt9p031->ctrls, &mt9p031_ctrl_ops,
>> + V4L2_CID_TEST_PATTERN,
>> + ARRAY_SIZE(mt9p031_test_pattern_menu) - 1, 0,
>> + 0, mt9p031_test_pattern_menu);
>>
>> for (i = 0; i < ARRAY_SIZE(mt9p031_ctrls); ++i)
>> v4l2_ctrl_new_custom(&mt9p031->ctrls, &mt9p031_ctrls[i], NULL);
>> diff --git a/drivers/media/i2c/mt9t001.c b/drivers/media/i2c/mt9t001.c
>> index 6d343ad..2e189d8 100644
>> --- a/drivers/media/i2c/mt9t001.c
>> +++ b/drivers/media/i2c/mt9t001.c
>> @@ -371,7 +371,7 @@ static int mt9t001_set_crop(struct v4l2_subdev *subdev,
>> * V4L2 subdev control operations
>> */
>>
>> -#define V4L2_CID_TEST_PATTERN (V4L2_CID_USER_BASE | 0x1001)
>> +#define V4L2_CID_TEST_PATTERN_COLOR (V4L2_CID_USER_BASE | 0x1001)
>> #define V4L2_CID_BLACK_LEVEL_AUTO (V4L2_CID_USER_BASE | 0x1002)
>> #define V4L2_CID_BLACK_LEVEL_OFFSET (V4L2_CID_USER_BASE | 0x1003)
>> #define V4L2_CID_BLACK_LEVEL_CALIBRATE (V4L2_CID_USER_BASE | 0x1004)
>> @@ -487,12 +487,11 @@ static int mt9t001_s_ctrl(struct v4l2_ctrl *ctrl)
>> ctrl->val >> 16);
>>
>> case V4L2_CID_TEST_PATTERN:
>> - ret = mt9t001_set_output_control(mt9t001,
>> + return mt9t001_set_output_control(mt9t001,
>> ctrl->val ? 0 : MT9T001_OUTPUT_CONTROL_TEST_DATA,
>> ctrl->val ? MT9T001_OUTPUT_CONTROL_TEST_DATA : 0);
>> - if (ret < 0)
>> - return ret;
>>
>> + case V4L2_CID_TEST_PATTERN_COLOR:
>> return mt9t001_write(client, MT9T001_TEST_DATA, ctrl->val << 2);
>>
>> case V4L2_CID_BLACK_LEVEL_AUTO:
>> @@ -533,12 +532,17 @@ static struct v4l2_ctrl_ops mt9t001_ctrl_ops = {
>> .s_ctrl = mt9t001_s_ctrl,
>> };
>>
>> +static const char * const mt9t001_test_pattern_menu[] = {
>> + "Disabled",
>> + "Enabled",
>> +};
>> +
>> static const struct v4l2_ctrl_config mt9t001_ctrls[] = {
>> {
>> .ops = &mt9t001_ctrl_ops,
>> - .id = V4L2_CID_TEST_PATTERN,
>> + .id = V4L2_CID_TEST_PATTERN_COLOR,
>> .type = V4L2_CTRL_TYPE_INTEGER,
>> - .name = "Test pattern",
>> + .name = "Test Pattern Color",
>> .min = 0,
>> .max = 1023,
>> .step = 1,
>> @@ -741,7 +745,7 @@ static int mt9t001_probe(struct i2c_client *client,
>> return -ENOMEM;
>>
>> v4l2_ctrl_handler_init(&mt9t001->ctrls, ARRAY_SIZE(mt9t001_ctrls) +
>> - ARRAY_SIZE(mt9t001_gains) + 3);
>> + ARRAY_SIZE(mt9t001_gains) + 4);
>>
>> v4l2_ctrl_new_std(&mt9t001->ctrls, &mt9t001_ctrl_ops,
>> V4L2_CID_EXPOSURE, MT9T001_SHUTTER_WIDTH_MIN,
>> @@ -752,6 +756,10 @@ static int mt9t001_probe(struct i2c_client *client,
>> v4l2_ctrl_new_std(&mt9t001->ctrls, &mt9t001_ctrl_ops,
>> V4L2_CID_PIXEL_RATE, pdata->ext_clk, pdata->ext_clk,
>> 1, pdata->ext_clk);
>> + v4l2_ctrl_new_std_menu_items(&mt9t001->ctrls, &mt9t001_ctrl_ops,
>> + V4L2_CID_TEST_PATTERN,
>> + ARRAY_SIZE(mt9t001_test_pattern_menu) - 1, 0,
>> + 0, mt9t001_test_pattern_menu);
>>
>> for (i = 0; i < ARRAY_SIZE(mt9t001_ctrls); ++i)
>> v4l2_ctrl_new_custom(&mt9t001->ctrls, &mt9t001_ctrls[i], NULL);
>> diff --git a/drivers/media/i2c/mt9v032.c b/drivers/media/i2c/mt9v032.c
>> index e217740..a0a37ba 100644
>> --- a/drivers/media/i2c/mt9v032.c
>> +++ b/drivers/media/i2c/mt9v032.c
>> @@ -141,6 +141,10 @@ struct mt9v032 {
>> u16 chip_control;
>> u16 aec_agc;
>> u16 hblank;
>> + struct {
>> + struct v4l2_ctrl *test_pattern;
>> + struct v4l2_ctrl *test_pattern_color;
>> + };
>> };
>>
>> static struct mt9v032 *to_mt9v032(struct v4l2_subdev *sd)
>> @@ -500,7 +504,7 @@ static int mt9v032_set_crop(struct v4l2_subdev *subdev,
>> * V4L2 subdev control operations
>> */
>>
>> -#define V4L2_CID_TEST_PATTERN (V4L2_CID_USER_BASE | 0x1001)
>> +#define V4L2_CID_TEST_PATTERN_COLOR (V4L2_CID_USER_BASE | 0x1001)
>>
>> static int mt9v032_s_ctrl(struct v4l2_ctrl *ctrl)
>> {
>> @@ -545,7 +549,7 @@ static int mt9v032_s_ctrl(struct v4l2_ctrl *ctrl)
>> break;
>>
>> case V4L2_CID_TEST_PATTERN:
>> - switch (ctrl->val) {
>> + switch (mt9v032->test_pattern->val) {
>> case 0:
>> data = 0;
>> break;
>> @@ -562,13 +566,13 @@ static int mt9v032_s_ctrl(struct v4l2_ctrl *ctrl)
>>
>> | MT9V032_TEST_PATTERN_ENABLE;
>>
>> break;
>> default:
>> - data = (ctrl->val << MT9V032_TEST_PATTERN_DATA_SHIFT)
>> - | MT9V032_TEST_PATTERN_USE_DATA
>> - | MT9V032_TEST_PATTERN_ENABLE
>> - | MT9V032_TEST_PATTERN_FLIP;
>> + data = (mt9v032->test_pattern_color->val <<
>> + MT9V032_TEST_PATTERN_DATA_SHIFT) |
>> + MT9V032_TEST_PATTERN_USE_DATA |
>> + MT9V032_TEST_PATTERN_ENABLE |
>> + MT9V032_TEST_PATTERN_FLIP;
>
> Can you keep the | aligned on the = (and the M of
> MT9V032_TEST_PATTERN_DATA_SHIFT aligned on the m of mt9v032-
>>test_pattern_color->val) ? There will be less lines changed then.
>
Done.
>> break;
>> }
>> -
>> return mt9v032_write(client, MT9V032_TEST_PATTERN, data);
>> }
>>
>> @@ -579,18 +583,24 @@ static struct v4l2_ctrl_ops mt9v032_ctrl_ops = {
>> .s_ctrl = mt9v032_s_ctrl,
>> };
>>
>> -static const struct v4l2_ctrl_config mt9v032_ctrls[] = {
>> - {
>> - .ops = &mt9v032_ctrl_ops,
>> - .id = V4L2_CID_TEST_PATTERN,
>> - .type = V4L2_CTRL_TYPE_INTEGER,
>> - .name = "Test pattern",
>> - .min = 0,
>> - .max = 1023,
>> - .step = 1,
>> - .def = 0,
>> - .flags = 0,
>> - }
>> +static const char * const mt9v032_test_pattern_menu[] = {
>> + "Disabled",
>> + "Gray Vertical Shade",
>> + "Gray Horizontal Shade",
>> + "Gray Diagonal Shade",
>> + "Plain",
>> +};
>> +
>> +static const struct v4l2_ctrl_config mt9v032_test_patter_color = {
>
> s/patter/pattern/
>
> and below too.
>
Ok.
Regards,
--Prabhakar
>> + .ops = &mt9v032_ctrl_ops,
>> + .id = V4L2_CID_TEST_PATTERN_COLOR,
>> + .type = V4L2_CTRL_TYPE_INTEGER,
>> + .name = "Test Pattern Color",
>> + .min = 4,
>> + .max = 1023,
>> + .step = 1,
>> + .def = 4,
>> + .flags = 0,
>> };
>>
>> /*
>> ---------------------------------------------------------------------------
>> -- @@ -741,7 +751,7 @@ static int mt9v032_probe(struct i2c_client *client,
>> mutex_init(&mt9v032->power_lock);
>> mt9v032->pdata = pdata;
>>
>> - v4l2_ctrl_handler_init(&mt9v032->ctrls, ARRAY_SIZE(mt9v032_ctrls) + 8);
>> + v4l2_ctrl_handler_init(&mt9v032->ctrls, 10);
>>
>> v4l2_ctrl_new_std(&mt9v032->ctrls, &mt9v032_ctrl_ops,
>> V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
>> @@ -763,6 +773,14 @@ static int mt9v032_probe(struct i2c_client *client,
>> V4L2_CID_VBLANK, MT9V032_VERTICAL_BLANKING_MIN,
>> MT9V032_VERTICAL_BLANKING_MAX, 1,
>> MT9V032_VERTICAL_BLANKING_DEF);
>> + mt9v032->test_pattern = v4l2_ctrl_new_std_menu_items(&mt9v032->ctrls,
>> + &mt9v032_ctrl_ops, V4L2_CID_TEST_PATTERN,
>> + ARRAY_SIZE(mt9v032_test_pattern_menu) - 1, 0, 0,
>> + mt9v032_test_pattern_menu);
>> + mt9v032->test_pattern_color = v4l2_ctrl_new_custom(&mt9v032->ctrls,
>> + &mt9v032_test_patter_color, NULL);
>> +
>> + v4l2_ctrl_cluster(2, &mt9v032->test_pattern);
>>
>> mt9v032->pixel_rate =
>> v4l2_ctrl_new_std(&mt9v032->ctrls, &mt9v032_ctrl_ops,
>> @@ -784,8 +802,6 @@ static int mt9v032_probe(struct i2c_client *client,
>> v4l2_ctrl_cluster(2, &mt9v032->link_freq);
>> }
>>
>> - for (i = 0; i < ARRAY_SIZE(mt9v032_ctrls); ++i)
>> - v4l2_ctrl_new_custom(&mt9v032->ctrls, &mt9v032_ctrls[i], NULL);
>>
>> mt9v032->subdev.ctrl_handler = &mt9v032->ctrls;
> --
> Regards,
>
> Laurent Pinchart
>
--
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