| Message ID | 1525275968-17207-1-git-send-email-andy.yeh@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Andy, Sorry, missed one problem in previous review. Would you be able to send a fixup patch? On Thu, May 3, 2018 at 12:38 AM Andy Yeh <andy.yeh@intel.com> wrote: > From: Jason Chen <jasonx.z.chen@intel.com> > Add a V4L2 sub-device driver for the Sony IMX258 image sensor. > This is a camera sensor using the I2C bus for control and the > CSI-2 bus for data. > Signed-off-by: Andy Yeh <andy.yeh@intel.com> > Signed-off-by: Alan Chiang <alanx.chiang@intel.com> > Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com> > Reviewed-by: Tomasz Figa <tfiga@chromium.org> > --- > since v2: > -- Update the streaming function to remove SW_STANDBY in the beginning. > -- Adjust the delay time from 1ms to 12ms before set stream-on register. > since v3: > -- fix the sd.entity to make code be compiled on the mainline kernel. > since v4: > -- Enabled AG, DG, and Exposure time control correctly. > since v5: > -- Sensor vendor provided a new setting to fix different CLK issue > -- Add one more resolution for 1048x780, used for VGA streaming > since v6: > -- improved i2c read/write function to support writing 2 registers > -- modified i2c reg read/write function with a more portable way > -- utilized v4l2_find_nearest_size instead of the local find_best_fit function > -- defined an enum for the link freq entries for explicit indexing > since v7: > -- Removed usleep due to sufficient delay implemented in coreboot > -- Added handling for VBLANK control that auto frame-line-control is enabled > since v8: > -- Fix some error return and intents > since v9: > -- Fix a typo (fmr -> fmt) > since v9.1: > -- Add code for test pattern control > -- set vblank and read only since auto-FLL is enabled > since v10: > -- Implement test pattern feature: > -- Output order of test pattern is always BGGR, so it needs a flip to rotate bayer pattern to required one (GRBG) > MAINTAINERS | 7 + > drivers/media/i2c/Kconfig | 11 + > drivers/media/i2c/Makefile | 1 + > drivers/media/i2c/imx258.c | 1321 ++++++++++++++++++++++++++++++++++++++++++++ > 4 files changed, 1340 insertions(+) > create mode 100644 drivers/media/i2c/imx258.c > diff --git a/MAINTAINERS b/MAINTAINERS > index a339bb5..9f75510 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -12646,6 +12646,13 @@ S: Maintained > F: drivers/ssb/ > F: include/linux/ssb/ > +SONY IMX258 SENSOR DRIVER > +M: Sakari Ailus <sakari.ailus@linux.intel.com> > +L: linux-media@vger.kernel.org > +T: git git://linuxtv.org/media_tree.git > +S: Maintained > +F: drivers/media/i2c/imx258.c > + > SONY IMX274 SENSOR DRIVER > M: Leon Luo <leonl@leopardimaging.com> > L: linux-media@vger.kernel.org > diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig > index fd01842..bcd4bf1 100644 > --- a/drivers/media/i2c/Kconfig > +++ b/drivers/media/i2c/Kconfig > @@ -565,6 +565,17 @@ config VIDEO_APTINA_PLL > config VIDEO_SMIAPP_PLL > tristate > +config VIDEO_IMX258 > + tristate "Sony IMX258 sensor support" > + depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API > + depends on MEDIA_CAMERA_SUPPORT > + ---help--- > + This is a Video4Linux2 sensor-level driver for the Sony > + IMX258 camera. > + > + To compile this driver as a module, choose M here: the > + module will be called imx258. > + > config VIDEO_IMX274 > tristate "Sony IMX274 sensor support" > depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API > diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile > index 1b62639..4bf7d00 100644 > --- a/drivers/media/i2c/Makefile > +++ b/drivers/media/i2c/Makefile > @@ -94,6 +94,7 @@ obj-$(CONFIG_VIDEO_IR_I2C) += ir-kbd-i2c.o > obj-$(CONFIG_VIDEO_ML86V7667) += ml86v7667.o > obj-$(CONFIG_VIDEO_OV2659) += ov2659.o > obj-$(CONFIG_VIDEO_TC358743) += tc358743.o > +obj-$(CONFIG_VIDEO_IMX258) += imx258.o > obj-$(CONFIG_VIDEO_IMX274) += imx274.o > obj-$(CONFIG_SDR_MAX2175) += max2175.o > diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c > new file mode 100644 > index 0000000..b2e6d06 > --- /dev/null > +++ b/drivers/media/i2c/imx258.c > @@ -0,0 +1,1321 @@ > +// SPDX-License-Identifier: GPL-2.0 > +// Copyright (C) 2018 Intel Corporation > + > +#include <linux/acpi.h> > +#include <linux/delay.h> > +#include <linux/i2c.h> > +#include <linux/module.h> > +#include <linux/pm_runtime.h> > +#include <media/v4l2-ctrls.h> > +#include <media/v4l2-device.h> > +#include <asm/unaligned.h> > + > +#define IMX258_REG_VALUE_08BIT 1 > +#define IMX258_REG_VALUE_16BIT 2 > + > +#define IMX258_REG_MODE_SELECT 0x0100 > +#define IMX258_MODE_STANDBY 0x00 > +#define IMX258_MODE_STREAMING 0x01 > + > +/* Chip ID */ > +#define IMX258_REG_CHIP_ID 0x0016 > +#define IMX258_CHIP_ID 0x0258 > + > +/* V_TIMING internal */ > +#define IMX258_VTS_30FPS 0x0c98 > +#define IMX258_VTS_30FPS_2K 0x0638 > +#define IMX258_VTS_30FPS_VGA 0x034c > +#define IMX258_VTS_MAX 0xffff > + > +/*Frame Length Line*/ > +#define IMX258_FLL_MIN 0x08a6 > +#define IMX258_FLL_MAX 0xffff > +#define IMX258_FLL_STEP 1 > +#define IMX258_FLL_DEFAULT 0x0c98 > + > +/* HBLANK control - read only */ > +#define IMX258_PPL_DEFAULT 5352 > + > +/* Exposure control */ > +#define IMX258_REG_EXPOSURE 0x0202 > +#define IMX258_EXPOSURE_MIN 4 > +#define IMX258_EXPOSURE_STEP 1 > +#define IMX258_EXPOSURE_DEFAULT 0x640 > +#define IMX258_EXPOSURE_MAX 65535 > + > +/* Analog gain control */ > +#define IMX258_REG_ANALOG_GAIN 0x0204 > +#define IMX258_ANA_GAIN_MIN 0 > +#define IMX258_ANA_GAIN_MAX 0x1fff > +#define IMX258_ANA_GAIN_STEP 1 > +#define IMX258_ANA_GAIN_DEFAULT 0x0 > + > +/* Digital gain control */ > +#define IMX258_REG_GR_DIGITAL_GAIN 0x020e > +#define IMX258_REG_R_DIGITAL_GAIN 0x0210 > +#define IMX258_REG_B_DIGITAL_GAIN 0x0212 > +#define IMX258_REG_GB_DIGITAL_GAIN 0x0214 > +#define IMX258_DGTL_GAIN_MIN 0 > +#define IMX258_DGTL_GAIN_MAX 4096 /* Max = 0xFFF */ > +#define IMX258_DGTL_GAIN_DEFAULT 1024 > +#define IMX258_DGTL_GAIN_STEP 1 > + > +/* Test Pattern Control */ > +#define IMX258_REG_TEST_PATTERN 0x0600 > +#define IMX258_TEST_PATTERN_DISABLE 0 > +#define IMX258_TEST_PATTERN_SOLID_COLOR 1 > +#define IMX258_TEST_PATTERN_COLOR_BARS 2 > +#define IMX258_TEST_PATTERN_GREY_COLOR 3 > +#define IMX258_TEST_PATTERN_PN9 4 > + > +/* Orientation */ > +#define REG_MIRROR_FLIP_CONTROL 0x0101 > +#define REG_CONFIG_MIRROR_FLIP 0x03 > +#define REG_CONFIG_FLIP_TEST_PATTERN 0x02 The names are inconsistent here. All other register addresses start with IMX258_REG and values with IMX258_<field name> (no REG). [snip] > +static const char * const imx258_test_pattern_menu[] = { > + "Disabled", > + "Color Bars", > + "Solid Color", > + "Grey Color Bars", > + "PN9" > +}; > + > +static const int imx258_test_pattern_val[] = { > + IMX258_TEST_PATTERN_DISABLE, > + IMX258_TEST_PATTERN_COLOR_BARS, > + IMX258_TEST_PATTERN_SOLID_COLOR, > + IMX258_TEST_PATTERN_GREY_COLOR, > + IMX258_TEST_PATTERN_PN9, > +}; By reordering imx258_test_pattern_menu[], this array can be removed and ctrl->val can be used directly. It is validated by control framework to be within menu range and so safe to be used for programming hardware. [snip] > + case V4L2_CID_TEST_PATTERN: > + ret = imx258_write_reg(imx258, IMX258_REG_TEST_PATTERN, > + IMX258_REG_VALUE_16BIT, > + imx258_test_pattern_val[ctrl->val]); > + > + ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL, > + IMX258_REG_VALUE_08BIT, > + ctrl->val == imx258_test_pattern_val > + [IMX258_TEST_PATTERN_DISABLE] ? > + REG_CONFIG_MIRROR_FLIP : > + REG_CONFIG_FLIP_TEST_PATTERN); The comparison above doesn't make any sense. ctrl->val is an index into imx258_test_pattern_val[], but imx258_test_pattern_val[IMX258_TEST_PATTERN_DISABLE] is a register value. Moreover, IMX258_TEST_PATTERN_DISABLE is also a register value, so it doesn't make sense to use it for indexing the array. I'd suggest simply checking for (!ctrl->val). Best regards, Tomasz
Hello Tomasz >> +/* Test Pattern Control */ >> +#define IMX258_REG_TEST_PATTERN 0x0600 >> +#define IMX258_TEST_PATTERN_DISABLE 0 >> +#define IMX258_TEST_PATTERN_SOLID_COLOR 1 >> +#define IMX258_TEST_PATTERN_COLOR_BARS 2 #define >> +IMX258_TEST_PATTERN_GREY_COLOR 3 >> +#define IMX258_TEST_PATTERN_PN9 4 >> + >> +/* Orientation */ >> +#define REG_MIRROR_FLIP_CONTROL 0x0101 >> +#define REG_CONFIG_MIRROR_FLIP 0x03 >> +#define REG_CONFIG_FLIP_TEST_PATTERN 0x02 > >The names are inconsistent here. All other register addresses start with IMX258_REG and values with IMX258_<field name> (no REG). > >[snip] We will update at next patch. >> +static const char * const imx258_test_pattern_menu[] = { >> + "Disabled", >> + "Color Bars", >> + "Solid Color", >> + "Grey Color Bars", >> + "PN9" >> +}; >> + >> +static const int imx258_test_pattern_val[] = { >> + IMX258_TEST_PATTERN_DISABLE, >> + IMX258_TEST_PATTERN_COLOR_BARS, >> + IMX258_TEST_PATTERN_SOLID_COLOR, >> + IMX258_TEST_PATTERN_GREY_COLOR, >> + IMX258_TEST_PATTERN_PN9, >> +}; > >By reordering imx258_test_pattern_menu[], this array can be removed and >ctrl->val can be used directly. It is validated by control framework to >ctrl->be >within menu range and so safe to be used for programming hardware. > >[snip] IPU3 HAL has a handler to bind test_pattern mode. The COLOR BAR MODE in HAL has been configured to 1 when APP requests to output color bar image. However Sony sensor's COLOR BAR MODE is designed as 2 in register table. (grey color bars as 1). When HAL sends handler to driver to switch test pattern mode (to COLOR BAR - val: 1), it will be grey color, since driver still set TEST_PATTERN_MODE reg value to 1, those it is not what we expected. That is why we have to make an array with index to arrange the order of the test pattern items, so driver will choose COLOR BAR correctly when HAL send test_pattern message (with 1). The concept is the test_pattern_menu could be listed in driver per real requirement, no matter how the sensor register is designed. >> + case V4L2_CID_TEST_PATTERN: >> + ret = imx258_write_reg(imx258, IMX258_REG_TEST_PATTERN, >> + IMX258_REG_VALUE_16BIT, >> + imx258_test_pattern_val[ctrl->val]); >> + >> + ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL, >> + IMX258_REG_VALUE_08BIT, >> + ctrl->val == imx258_test_pattern_val >> + [IMX258_TEST_PATTERN_DISABLE] ? >> + REG_CONFIG_MIRROR_FLIP : >> + REG_CONFIG_FLIP_TEST_PATTERN); > >The comparison above doesn't make any sense. ctrl->val is an index into imx258_test_pattern_val[], but imx258_test_pattern_val[IMX258_TEST_PATTERN_DISABLE] is a register value. >Moreover, IMX258_TEST_PATTERN_DISABLE is also a register value, so it doesn't make sense to use it for indexing the array. I'd suggest simply checking for (!ctrl->val). > We will update at next patch. B.R., Jason
Hi Jason, On Wed, May 09, 2018 at 09:28:30AM +0000, Chen, JasonX Z wrote: > Hello Tomasz > > >> +/* Test Pattern Control */ > >> +#define IMX258_REG_TEST_PATTERN 0x0600 > >> +#define IMX258_TEST_PATTERN_DISABLE 0 > >> +#define IMX258_TEST_PATTERN_SOLID_COLOR 1 > >> +#define IMX258_TEST_PATTERN_COLOR_BARS 2 #define > >> +IMX258_TEST_PATTERN_GREY_COLOR 3 > >> +#define IMX258_TEST_PATTERN_PN9 4 > >> + > >> +/* Orientation */ > >> +#define REG_MIRROR_FLIP_CONTROL 0x0101 > >> +#define REG_CONFIG_MIRROR_FLIP 0x03 > >> +#define REG_CONFIG_FLIP_TEST_PATTERN 0x02 > > > >The names are inconsistent here. All other register addresses start with IMX258_REG and values with IMX258_<field name> (no REG). > > > >[snip] > > We will update at next patch. Just to clarify: please send a patch on top of the earlier revision to address the comments. A pull request containing it has already been sent: <URL:https://git.linuxtv.org/sailus/media_tree.git/log/?h=for-4.18-3> Thanks.
Hi Jason, On Wed, May 9, 2018 at 6:28 PM Chen, JasonX Z <jasonx.z.chen@intel.com> wrote: > Hello Tomasz > >> +/* Test Pattern Control */ > >> +#define IMX258_REG_TEST_PATTERN 0x0600 > >> +#define IMX258_TEST_PATTERN_DISABLE 0 > >> +#define IMX258_TEST_PATTERN_SOLID_COLOR 1 > >> +#define IMX258_TEST_PATTERN_COLOR_BARS 2 #define > >> +IMX258_TEST_PATTERN_GREY_COLOR 3 > >> +#define IMX258_TEST_PATTERN_PN9 4 > >> + > >> +/* Orientation */ > >> +#define REG_MIRROR_FLIP_CONTROL 0x0101 > >> +#define REG_CONFIG_MIRROR_FLIP 0x03 > >> +#define REG_CONFIG_FLIP_TEST_PATTERN 0x02 > > > >The names are inconsistent here. All other register addresses start with IMX258_REG and values with IMX258_<field name> (no REG). > > > >[snip] > We will update at next patch. Thanks. (As Sakari's said, please send an incremental patch, not resend.) > >> +static const char * const imx258_test_pattern_menu[] = { > >> + "Disabled", > >> + "Color Bars", > >> + "Solid Color", > >> + "Grey Color Bars", > >> + "PN9" > >> +}; > >> + > >> +static const int imx258_test_pattern_val[] = { > >> + IMX258_TEST_PATTERN_DISABLE, > >> + IMX258_TEST_PATTERN_COLOR_BARS, > >> + IMX258_TEST_PATTERN_SOLID_COLOR, > >> + IMX258_TEST_PATTERN_GREY_COLOR, > >> + IMX258_TEST_PATTERN_PN9, > >> +}; > > > >By reordering imx258_test_pattern_menu[], this array can be removed and > >ctrl->val can be used directly. It is validated by control framework to > >ctrl->be > >within menu range and so safe to be used for programming hardware. > > > >[snip] > IPU3 HAL has a handler to bind test_pattern mode. > The COLOR BAR MODE in HAL has been configured to 1 when APP requests to output color bar image. > However Sony sensor's COLOR BAR MODE is designed as 2 in register table. (grey color bars as 1). > When HAL sends handler to driver to switch test pattern mode (to COLOR BAR - val: 1), it will be grey color, since driver still set TEST_PATTERN_MODE reg value to 1, those it is not what we expected. > That is why we have to make an array with index to arrange the order of the test pattern items, so driver will choose COLOR BAR correctly when HAL send test_pattern message (with 1). > The concept is the test_pattern_menu could be listed in driver per real requirement, no matter how the sensor register is designed. V4L2 specification does not define any particular order of menu entries in V4L2_CID_TEST_PATTERN. The application should query the strings in the menu and determine the option it needs based on that. If it hardcodes particular index, it's a bug. > >> + case V4L2_CID_TEST_PATTERN: > >> + ret = imx258_write_reg(imx258, IMX258_REG_TEST_PATTERN, > >> + IMX258_REG_VALUE_16BIT, > >> + imx258_test_pattern_val[ctrl->val]); > >> + > >> + ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL, > >> + IMX258_REG_VALUE_08BIT, > >> + ctrl->val == imx258_test_pattern_val > >> + [IMX258_TEST_PATTERN_DISABLE] ? > >> + REG_CONFIG_MIRROR_FLIP : > >> + REG_CONFIG_FLIP_TEST_PATTERN); > > > >The comparison above doesn't make any sense. ctrl->val is an index into imx258_test_pattern_val[], but imx258_test_pattern_val[IMX258_TEST_PATTERN_DISABLE] is a register value. > >Moreover, IMX258_TEST_PATTERN_DISABLE is also a register value, so it doesn't make sense to use it for indexing the array. I'd suggest simply checking for (!ctrl->val). > > > We will update at next patch. Thanks. Best regards, Tomasz
Em Wed, 2 May 2018 23:46:08 +0800 Andy Yeh <andy.yeh@intel.com> escreveu: > From: Jason Chen <jasonx.z.chen@intel.com> > > Add a V4L2 sub-device driver for the Sony IMX258 image sensor. > This is a camera sensor using the I2C bus for control and the > CSI-2 bus for data. > > Signed-off-by: Andy Yeh <andy.yeh@intel.com> > Signed-off-by: Alan Chiang <alanx.chiang@intel.com> > Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com> > Reviewed-by: Tomasz Figa <tfiga@chromium.org> This adds a new warning: drivers/media/i2c/imx258.c: In function 'imx258_init_controls': drivers/media/i2c/imx258.c:1117:6: warning: variable 'exposure_max' set but not used [-Wunused-but-set-variable] s64 exposure_max; ^~~~~~~~~~~~ > > --- > since v2: > -- Update the streaming function to remove SW_STANDBY in the beginning. > -- Adjust the delay time from 1ms to 12ms before set stream-on register. > since v3: > -- fix the sd.entity to make code be compiled on the mainline kernel. > since v4: > -- Enabled AG, DG, and Exposure time control correctly. > since v5: > -- Sensor vendor provided a new setting to fix different CLK issue > -- Add one more resolution for 1048x780, used for VGA streaming > since v6: > -- improved i2c read/write function to support writing 2 registers > -- modified i2c reg read/write function with a more portable way > -- utilized v4l2_find_nearest_size instead of the local find_best_fit function > -- defined an enum for the link freq entries for explicit indexing > since v7: > -- Removed usleep due to sufficient delay implemented in coreboot > -- Added handling for VBLANK control that auto frame-line-control is enabled > since v8: > -- Fix some error return and intents > since v9: > -- Fix a typo (fmr -> fmt) > since v9.1: > -- Add code for test pattern control > -- set vblank and read only since auto-FLL is enabled > since v10: > -- Implement test pattern feature: > -- Output order of test pattern is always BGGR, so it needs a flip to rotate bayer pattern to required one (GRBG) > > > MAINTAINERS | 7 + > drivers/media/i2c/Kconfig | 11 + > drivers/media/i2c/Makefile | 1 + > drivers/media/i2c/imx258.c | 1321 ++++++++++++++++++++++++++++++++++++++++++++ > 4 files changed, 1340 insertions(+) > create mode 100644 drivers/media/i2c/imx258.c > > diff --git a/MAINTAINERS b/MAINTAINERS > index a339bb5..9f75510 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -12646,6 +12646,13 @@ S: Maintained > F: drivers/ssb/ > F: include/linux/ssb/ > > +SONY IMX258 SENSOR DRIVER > +M: Sakari Ailus <sakari.ailus@linux.intel.com> > +L: linux-media@vger.kernel.org > +T: git git://linuxtv.org/media_tree.git > +S: Maintained > +F: drivers/media/i2c/imx258.c > + > SONY IMX274 SENSOR DRIVER > M: Leon Luo <leonl@leopardimaging.com> > L: linux-media@vger.kernel.org > diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig > index fd01842..bcd4bf1 100644 > --- a/drivers/media/i2c/Kconfig > +++ b/drivers/media/i2c/Kconfig > @@ -565,6 +565,17 @@ config VIDEO_APTINA_PLL > config VIDEO_SMIAPP_PLL > tristate > > +config VIDEO_IMX258 > + tristate "Sony IMX258 sensor support" > + depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API > + depends on MEDIA_CAMERA_SUPPORT > + ---help--- > + This is a Video4Linux2 sensor-level driver for the Sony > + IMX258 camera. > + > + To compile this driver as a module, choose M here: the > + module will be called imx258. > + > config VIDEO_IMX274 > tristate "Sony IMX274 sensor support" > depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API > diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile > index 1b62639..4bf7d00 100644 > --- a/drivers/media/i2c/Makefile > +++ b/drivers/media/i2c/Makefile > @@ -94,6 +94,7 @@ obj-$(CONFIG_VIDEO_IR_I2C) += ir-kbd-i2c.o > obj-$(CONFIG_VIDEO_ML86V7667) += ml86v7667.o > obj-$(CONFIG_VIDEO_OV2659) += ov2659.o > obj-$(CONFIG_VIDEO_TC358743) += tc358743.o > +obj-$(CONFIG_VIDEO_IMX258) += imx258.o > obj-$(CONFIG_VIDEO_IMX274) += imx274.o > > obj-$(CONFIG_SDR_MAX2175) += max2175.o > diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c > new file mode 100644 > index 0000000..b2e6d06 > --- /dev/null > +++ b/drivers/media/i2c/imx258.c > @@ -0,0 +1,1321 @@ > +// SPDX-License-Identifier: GPL-2.0 > +// Copyright (C) 2018 Intel Corporation > + > +#include <linux/acpi.h> > +#include <linux/delay.h> > +#include <linux/i2c.h> > +#include <linux/module.h> > +#include <linux/pm_runtime.h> > +#include <media/v4l2-ctrls.h> > +#include <media/v4l2-device.h> > +#include <asm/unaligned.h> > + > +#define IMX258_REG_VALUE_08BIT 1 > +#define IMX258_REG_VALUE_16BIT 2 > + > +#define IMX258_REG_MODE_SELECT 0x0100 > +#define IMX258_MODE_STANDBY 0x00 > +#define IMX258_MODE_STREAMING 0x01 > + > +/* Chip ID */ > +#define IMX258_REG_CHIP_ID 0x0016 > +#define IMX258_CHIP_ID 0x0258 > + > +/* V_TIMING internal */ > +#define IMX258_VTS_30FPS 0x0c98 > +#define IMX258_VTS_30FPS_2K 0x0638 > +#define IMX258_VTS_30FPS_VGA 0x034c > +#define IMX258_VTS_MAX 0xffff > + > +/*Frame Length Line*/ > +#define IMX258_FLL_MIN 0x08a6 > +#define IMX258_FLL_MAX 0xffff > +#define IMX258_FLL_STEP 1 > +#define IMX258_FLL_DEFAULT 0x0c98 > + > +/* HBLANK control - read only */ > +#define IMX258_PPL_DEFAULT 5352 > + > +/* Exposure control */ > +#define IMX258_REG_EXPOSURE 0x0202 > +#define IMX258_EXPOSURE_MIN 4 > +#define IMX258_EXPOSURE_STEP 1 > +#define IMX258_EXPOSURE_DEFAULT 0x640 > +#define IMX258_EXPOSURE_MAX 65535 > + > +/* Analog gain control */ > +#define IMX258_REG_ANALOG_GAIN 0x0204 > +#define IMX258_ANA_GAIN_MIN 0 > +#define IMX258_ANA_GAIN_MAX 0x1fff > +#define IMX258_ANA_GAIN_STEP 1 > +#define IMX258_ANA_GAIN_DEFAULT 0x0 > + > +/* Digital gain control */ > +#define IMX258_REG_GR_DIGITAL_GAIN 0x020e > +#define IMX258_REG_R_DIGITAL_GAIN 0x0210 > +#define IMX258_REG_B_DIGITAL_GAIN 0x0212 > +#define IMX258_REG_GB_DIGITAL_GAIN 0x0214 > +#define IMX258_DGTL_GAIN_MIN 0 > +#define IMX258_DGTL_GAIN_MAX 4096 /* Max = 0xFFF */ > +#define IMX258_DGTL_GAIN_DEFAULT 1024 > +#define IMX258_DGTL_GAIN_STEP 1 > + > +/* Test Pattern Control */ > +#define IMX258_REG_TEST_PATTERN 0x0600 > +#define IMX258_TEST_PATTERN_DISABLE 0 > +#define IMX258_TEST_PATTERN_SOLID_COLOR 1 > +#define IMX258_TEST_PATTERN_COLOR_BARS 2 > +#define IMX258_TEST_PATTERN_GREY_COLOR 3 > +#define IMX258_TEST_PATTERN_PN9 4 > + > +/* Orientation */ > +#define REG_MIRROR_FLIP_CONTROL 0x0101 > +#define REG_CONFIG_MIRROR_FLIP 0x03 > +#define REG_CONFIG_FLIP_TEST_PATTERN 0x02 > + > +struct imx258_reg { > + u16 address; > + u8 val; > +}; > + > +struct imx258_reg_list { > + u32 num_of_regs; > + const struct imx258_reg *regs; > +}; > + > +/* Link frequency config */ > +struct imx258_link_freq_config { > + u32 pixels_per_line; > + > + /* PLL registers for this link frequency */ > + struct imx258_reg_list reg_list; > +}; > + > +/* Mode : resolution and related config&values */ > +struct imx258_mode { > + /* Frame width */ > + u32 width; > + /* Frame height */ > + u32 height; > + > + /* V-timing */ > + u32 vts_def; > + u32 vts_min; > + > + /* Index of Link frequency config to be used */ > + u32 link_freq_index; > + /* Default register values */ > + struct imx258_reg_list reg_list; > +}; > + > +/* 4208x3118 needs 1267Mbps/lane, 4 lanes */ > +static const struct imx258_reg mipi_data_rate_1267mbps[] = { > + { 0x0301, 0x05 }, > + { 0x0303, 0x02 }, > + { 0x0305, 0x03 }, > + { 0x0306, 0x00 }, > + { 0x0307, 0xC6 }, > + { 0x0309, 0x0A }, > + { 0x030B, 0x01 }, > + { 0x030D, 0x02 }, > + { 0x030E, 0x00 }, > + { 0x030F, 0xD8 }, > + { 0x0310, 0x00 }, > + { 0x0820, 0x13 }, > + { 0x0821, 0x4C }, > + { 0x0822, 0xCC }, > + { 0x0823, 0xCC }, > +}; > + > +static const struct imx258_reg mipi_data_rate_640mbps[] = { > + { 0x0301, 0x05 }, > + { 0x0303, 0x02 }, > + { 0x0305, 0x03 }, > + { 0x0306, 0x00 }, > + { 0x0307, 0x64 }, > + { 0x0309, 0x0A }, > + { 0x030B, 0x01 }, > + { 0x030D, 0x02 }, > + { 0x030E, 0x00 }, > + { 0x030F, 0xD8 }, > + { 0x0310, 0x00 }, > + { 0x0820, 0x0A }, > + { 0x0821, 0x00 }, > + { 0x0822, 0x00 }, > + { 0x0823, 0x00 }, > +}; > + > +static const struct imx258_reg mode_4208x3118_regs[] = { > + { 0x0136, 0x13 }, > + { 0x0137, 0x33 }, > + { 0x3051, 0x00 }, > + { 0x3052, 0x00 }, > + { 0x4E21, 0x14 }, > + { 0x6B11, 0xCF }, > + { 0x7FF0, 0x08 }, > + { 0x7FF1, 0x0F }, > + { 0x7FF2, 0x08 }, > + { 0x7FF3, 0x1B }, > + { 0x7FF4, 0x23 }, > + { 0x7FF5, 0x60 }, > + { 0x7FF6, 0x00 }, > + { 0x7FF7, 0x01 }, > + { 0x7FF8, 0x00 }, > + { 0x7FF9, 0x78 }, > + { 0x7FFA, 0x00 }, > + { 0x7FFB, 0x00 }, > + { 0x7FFC, 0x00 }, > + { 0x7FFD, 0x00 }, > + { 0x7FFE, 0x00 }, > + { 0x7FFF, 0x03 }, > + { 0x7F76, 0x03 }, > + { 0x7F77, 0xFE }, > + { 0x7FA8, 0x03 }, > + { 0x7FA9, 0xFE }, > + { 0x7B24, 0x81 }, > + { 0x7B25, 0x00 }, > + { 0x6564, 0x07 }, > + { 0x6B0D, 0x41 }, > + { 0x653D, 0x04 }, > + { 0x6B05, 0x8C }, > + { 0x6B06, 0xF9 }, > + { 0x6B08, 0x65 }, > + { 0x6B09, 0xFC }, > + { 0x6B0A, 0xCF }, > + { 0x6B0B, 0xD2 }, > + { 0x6700, 0x0E }, > + { 0x6707, 0x0E }, > + { 0x9104, 0x00 }, > + { 0x4648, 0x7F }, > + { 0x7420, 0x00 }, > + { 0x7421, 0x1C }, > + { 0x7422, 0x00 }, > + { 0x7423, 0xD7 }, > + { 0x5F04, 0x00 }, > + { 0x5F05, 0xED }, > + { 0x0112, 0x0A }, > + { 0x0113, 0x0A }, > + { 0x0114, 0x03 }, > + { 0x0342, 0x14 }, > + { 0x0343, 0xE8 }, > + { 0x0340, 0x0C }, > + { 0x0341, 0x50 }, > + { 0x0344, 0x00 }, > + { 0x0345, 0x00 }, > + { 0x0346, 0x00 }, > + { 0x0347, 0x00 }, > + { 0x0348, 0x10 }, > + { 0x0349, 0x6F }, > + { 0x034A, 0x0C }, > + { 0x034B, 0x2E }, > + { 0x0381, 0x01 }, > + { 0x0383, 0x01 }, > + { 0x0385, 0x01 }, > + { 0x0387, 0x01 }, > + { 0x0900, 0x00 }, > + { 0x0901, 0x11 }, > + { 0x0401, 0x00 }, > + { 0x0404, 0x00 }, > + { 0x0405, 0x10 }, > + { 0x0408, 0x00 }, > + { 0x0409, 0x00 }, > + { 0x040A, 0x00 }, > + { 0x040B, 0x00 }, > + { 0x040C, 0x10 }, > + { 0x040D, 0x70 }, > + { 0x040E, 0x0C }, > + { 0x040F, 0x30 }, > + { 0x3038, 0x00 }, > + { 0x303A, 0x00 }, > + { 0x303B, 0x10 }, > + { 0x300D, 0x00 }, > + { 0x034C, 0x10 }, > + { 0x034D, 0x70 }, > + { 0x034E, 0x0C }, > + { 0x034F, 0x30 }, > + { 0x0350, 0x01 }, > + { 0x0202, 0x0C }, > + { 0x0203, 0x46 }, > + { 0x0204, 0x00 }, > + { 0x0205, 0x00 }, > + { 0x020E, 0x01 }, > + { 0x020F, 0x00 }, > + { 0x0210, 0x01 }, > + { 0x0211, 0x00 }, > + { 0x0212, 0x01 }, > + { 0x0213, 0x00 }, > + { 0x0214, 0x01 }, > + { 0x0215, 0x00 }, > + { 0x7BCD, 0x00 }, > + { 0x94DC, 0x20 }, > + { 0x94DD, 0x20 }, > + { 0x94DE, 0x20 }, > + { 0x95DC, 0x20 }, > + { 0x95DD, 0x20 }, > + { 0x95DE, 0x20 }, > + { 0x7FB0, 0x00 }, > + { 0x9010, 0x3E }, > + { 0x9419, 0x50 }, > + { 0x941B, 0x50 }, > + { 0x9519, 0x50 }, > + { 0x951B, 0x50 }, > + { 0x3030, 0x00 }, > + { 0x3032, 0x00 }, > + { 0x0220, 0x00 }, > +}; > + > +static const struct imx258_reg mode_2104_1560_regs[] = { > + { 0x0136, 0x13 }, > + { 0x0137, 0x33 }, > + { 0x3051, 0x00 }, > + { 0x3052, 0x00 }, > + { 0x4E21, 0x14 }, > + { 0x6B11, 0xCF }, > + { 0x7FF0, 0x08 }, > + { 0x7FF1, 0x0F }, > + { 0x7FF2, 0x08 }, > + { 0x7FF3, 0x1B }, > + { 0x7FF4, 0x23 }, > + { 0x7FF5, 0x60 }, > + { 0x7FF6, 0x00 }, > + { 0x7FF7, 0x01 }, > + { 0x7FF8, 0x00 }, > + { 0x7FF9, 0x78 }, > + { 0x7FFA, 0x00 }, > + { 0x7FFB, 0x00 }, > + { 0x7FFC, 0x00 }, > + { 0x7FFD, 0x00 }, > + { 0x7FFE, 0x00 }, > + { 0x7FFF, 0x03 }, > + { 0x7F76, 0x03 }, > + { 0x7F77, 0xFE }, > + { 0x7FA8, 0x03 }, > + { 0x7FA9, 0xFE }, > + { 0x7B24, 0x81 }, > + { 0x7B25, 0x00 }, > + { 0x6564, 0x07 }, > + { 0x6B0D, 0x41 }, > + { 0x653D, 0x04 }, > + { 0x6B05, 0x8C }, > + { 0x6B06, 0xF9 }, > + { 0x6B08, 0x65 }, > + { 0x6B09, 0xFC }, > + { 0x6B0A, 0xCF }, > + { 0x6B0B, 0xD2 }, > + { 0x6700, 0x0E }, > + { 0x6707, 0x0E }, > + { 0x9104, 0x00 }, > + { 0x4648, 0x7F }, > + { 0x7420, 0x00 }, > + { 0x7421, 0x1C }, > + { 0x7422, 0x00 }, > + { 0x7423, 0xD7 }, > + { 0x5F04, 0x00 }, > + { 0x5F05, 0xED }, > + { 0x0112, 0x0A }, > + { 0x0113, 0x0A }, > + { 0x0114, 0x03 }, > + { 0x0342, 0x14 }, > + { 0x0343, 0xE8 }, > + { 0x0340, 0x06 }, > + { 0x0341, 0x38 }, > + { 0x0344, 0x00 }, > + { 0x0345, 0x00 }, > + { 0x0346, 0x00 }, > + { 0x0347, 0x00 }, > + { 0x0348, 0x10 }, > + { 0x0349, 0x6F }, > + { 0x034A, 0x0C }, > + { 0x034B, 0x2E }, > + { 0x0381, 0x01 }, > + { 0x0383, 0x01 }, > + { 0x0385, 0x01 }, > + { 0x0387, 0x01 }, > + { 0x0900, 0x01 }, > + { 0x0901, 0x12 }, > + { 0x0401, 0x01 }, > + { 0x0404, 0x00 }, > + { 0x0405, 0x20 }, > + { 0x0408, 0x00 }, > + { 0x0409, 0x02 }, > + { 0x040A, 0x00 }, > + { 0x040B, 0x00 }, > + { 0x040C, 0x10 }, > + { 0x040D, 0x6A }, > + { 0x040E, 0x06 }, > + { 0x040F, 0x18 }, > + { 0x3038, 0x00 }, > + { 0x303A, 0x00 }, > + { 0x303B, 0x10 }, > + { 0x300D, 0x00 }, > + { 0x034C, 0x08 }, > + { 0x034D, 0x38 }, > + { 0x034E, 0x06 }, > + { 0x034F, 0x18 }, > + { 0x0350, 0x01 }, > + { 0x0202, 0x06 }, > + { 0x0203, 0x2E }, > + { 0x0204, 0x00 }, > + { 0x0205, 0x00 }, > + { 0x020E, 0x01 }, > + { 0x020F, 0x00 }, > + { 0x0210, 0x01 }, > + { 0x0211, 0x00 }, > + { 0x0212, 0x01 }, > + { 0x0213, 0x00 }, > + { 0x0214, 0x01 }, > + { 0x0215, 0x00 }, > + { 0x7BCD, 0x01 }, > + { 0x94DC, 0x20 }, > + { 0x94DD, 0x20 }, > + { 0x94DE, 0x20 }, > + { 0x95DC, 0x20 }, > + { 0x95DD, 0x20 }, > + { 0x95DE, 0x20 }, > + { 0x7FB0, 0x00 }, > + { 0x9010, 0x3E }, > + { 0x9419, 0x50 }, > + { 0x941B, 0x50 }, > + { 0x9519, 0x50 }, > + { 0x951B, 0x50 }, > + { 0x3030, 0x00 }, > + { 0x3032, 0x00 }, > + { 0x0220, 0x00 }, > +}; > + > +static const struct imx258_reg mode_1048_780_regs[] = { > + { 0x0136, 0x13 }, > + { 0x0137, 0x33 }, > + { 0x3051, 0x00 }, > + { 0x3052, 0x00 }, > + { 0x4E21, 0x14 }, > + { 0x6B11, 0xCF }, > + { 0x7FF0, 0x08 }, > + { 0x7FF1, 0x0F }, > + { 0x7FF2, 0x08 }, > + { 0x7FF3, 0x1B }, > + { 0x7FF4, 0x23 }, > + { 0x7FF5, 0x60 }, > + { 0x7FF6, 0x00 }, > + { 0x7FF7, 0x01 }, > + { 0x7FF8, 0x00 }, > + { 0x7FF9, 0x78 }, > + { 0x7FFA, 0x00 }, > + { 0x7FFB, 0x00 }, > + { 0x7FFC, 0x00 }, > + { 0x7FFD, 0x00 }, > + { 0x7FFE, 0x00 }, > + { 0x7FFF, 0x03 }, > + { 0x7F76, 0x03 }, > + { 0x7F77, 0xFE }, > + { 0x7FA8, 0x03 }, > + { 0x7FA9, 0xFE }, > + { 0x7B24, 0x81 }, > + { 0x7B25, 0x00 }, > + { 0x6564, 0x07 }, > + { 0x6B0D, 0x41 }, > + { 0x653D, 0x04 }, > + { 0x6B05, 0x8C }, > + { 0x6B06, 0xF9 }, > + { 0x6B08, 0x65 }, > + { 0x6B09, 0xFC }, > + { 0x6B0A, 0xCF }, > + { 0x6B0B, 0xD2 }, > + { 0x6700, 0x0E }, > + { 0x6707, 0x0E }, > + { 0x9104, 0x00 }, > + { 0x4648, 0x7F }, > + { 0x7420, 0x00 }, > + { 0x7421, 0x1C }, > + { 0x7422, 0x00 }, > + { 0x7423, 0xD7 }, > + { 0x5F04, 0x00 }, > + { 0x5F05, 0xED }, > + { 0x0112, 0x0A }, > + { 0x0113, 0x0A }, > + { 0x0114, 0x03 }, > + { 0x0342, 0x14 }, > + { 0x0343, 0xE8 }, > + { 0x0340, 0x03 }, > + { 0x0341, 0x4C }, > + { 0x0344, 0x00 }, > + { 0x0345, 0x00 }, > + { 0x0346, 0x00 }, > + { 0x0347, 0x00 }, > + { 0x0348, 0x10 }, > + { 0x0349, 0x6F }, > + { 0x034A, 0x0C }, > + { 0x034B, 0x2E }, > + { 0x0381, 0x01 }, > + { 0x0383, 0x01 }, > + { 0x0385, 0x01 }, > + { 0x0387, 0x01 }, > + { 0x0900, 0x01 }, > + { 0x0901, 0x14 }, > + { 0x0401, 0x01 }, > + { 0x0404, 0x00 }, > + { 0x0405, 0x40 }, > + { 0x0408, 0x00 }, > + { 0x0409, 0x06 }, > + { 0x040A, 0x00 }, > + { 0x040B, 0x00 }, > + { 0x040C, 0x10 }, > + { 0x040D, 0x64 }, > + { 0x040E, 0x03 }, > + { 0x040F, 0x0C }, > + { 0x3038, 0x00 }, > + { 0x303A, 0x00 }, > + { 0x303B, 0x10 }, > + { 0x300D, 0x00 }, > + { 0x034C, 0x04 }, > + { 0x034D, 0x18 }, > + { 0x034E, 0x03 }, > + { 0x034F, 0x0C }, > + { 0x0350, 0x01 }, > + { 0x0202, 0x03 }, > + { 0x0203, 0x42 }, > + { 0x0204, 0x00 }, > + { 0x0205, 0x00 }, > + { 0x020E, 0x01 }, > + { 0x020F, 0x00 }, > + { 0x0210, 0x01 }, > + { 0x0211, 0x00 }, > + { 0x0212, 0x01 }, > + { 0x0213, 0x00 }, > + { 0x0214, 0x01 }, > + { 0x0215, 0x00 }, > + { 0x7BCD, 0x00 }, > + { 0x94DC, 0x20 }, > + { 0x94DD, 0x20 }, > + { 0x94DE, 0x20 }, > + { 0x95DC, 0x20 }, > + { 0x95DD, 0x20 }, > + { 0x95DE, 0x20 }, > + { 0x7FB0, 0x00 }, > + { 0x9010, 0x3E }, > + { 0x9419, 0x50 }, > + { 0x941B, 0x50 }, > + { 0x9519, 0x50 }, > + { 0x951B, 0x50 }, > + { 0x3030, 0x00 }, > + { 0x3032, 0x00 }, > + { 0x0220, 0x00 }, > +}; > + > +static const char * const imx258_test_pattern_menu[] = { > + "Disabled", > + "Color Bars", > + "Solid Color", > + "Grey Color Bars", > + "PN9" > +}; > + > +static const int imx258_test_pattern_val[] = { > + IMX258_TEST_PATTERN_DISABLE, > + IMX258_TEST_PATTERN_COLOR_BARS, > + IMX258_TEST_PATTERN_SOLID_COLOR, > + IMX258_TEST_PATTERN_GREY_COLOR, > + IMX258_TEST_PATTERN_PN9, > +}; > + > +/* Configurations for supported link frequencies */ > +#define IMX258_LINK_FREQ_634MHZ 633600000ULL > +#define IMX258_LINK_FREQ_320MHZ 320000000ULL > + > +enum { > + IMX258_LINK_FREQ_1267MBPS, > + IMX258_LINK_FREQ_640MBPS, > +}; > + > +/* > + * pixel_rate = link_freq * data-rate * nr_of_lanes / bits_per_sample > + * data rate => double data rate; number of lanes => 4; bits per pixel => 10 > + */ > +static u64 link_freq_to_pixel_rate(u64 f) > +{ > + f *= 2 * 4; > + do_div(f, 10); > + > + return f; > +} > + > +/* Menu items for LINK_FREQ V4L2 control */ > +static const s64 link_freq_menu_items[] = { > + IMX258_LINK_FREQ_634MHZ, > + IMX258_LINK_FREQ_320MHZ, > +}; > + > +/* Link frequency configs */ > +static const struct imx258_link_freq_config link_freq_configs[] = { > + [IMX258_LINK_FREQ_1267MBPS] = { > + .pixels_per_line = IMX258_PPL_DEFAULT, > + .reg_list = { > + .num_of_regs = ARRAY_SIZE(mipi_data_rate_1267mbps), > + .regs = mipi_data_rate_1267mbps, > + } > + }, > + [IMX258_LINK_FREQ_640MBPS] = { > + .pixels_per_line = IMX258_PPL_DEFAULT, > + .reg_list = { > + .num_of_regs = ARRAY_SIZE(mipi_data_rate_640mbps), > + .regs = mipi_data_rate_640mbps, > + } > + }, > +}; > + > +/* Mode configs */ > +static const struct imx258_mode supported_modes[] = { > + { > + .width = 4208, > + .height = 3118, > + .vts_def = IMX258_VTS_30FPS, > + .vts_min = IMX258_VTS_30FPS, > + .reg_list = { > + .num_of_regs = ARRAY_SIZE(mode_4208x3118_regs), > + .regs = mode_4208x3118_regs, > + }, > + .link_freq_index = IMX258_LINK_FREQ_1267MBPS, > + }, > + { > + .width = 2104, > + .height = 1560, > + .vts_def = IMX258_VTS_30FPS_2K, > + .vts_min = IMX258_VTS_30FPS_2K, > + .reg_list = { > + .num_of_regs = ARRAY_SIZE(mode_2104_1560_regs), > + .regs = mode_2104_1560_regs, > + }, > + .link_freq_index = IMX258_LINK_FREQ_640MBPS, > + }, > + { > + .width = 1048, > + .height = 780, > + .vts_def = IMX258_VTS_30FPS_VGA, > + .vts_min = IMX258_VTS_30FPS_VGA, > + .reg_list = { > + .num_of_regs = ARRAY_SIZE(mode_1048_780_regs), > + .regs = mode_1048_780_regs, > + }, > + .link_freq_index = IMX258_LINK_FREQ_640MBPS, > + }, > +}; > + > +struct imx258 { > + struct v4l2_subdev sd; > + struct media_pad pad; > + > + struct v4l2_ctrl_handler ctrl_handler; > + /* V4L2 Controls */ > + struct v4l2_ctrl *link_freq; > + struct v4l2_ctrl *pixel_rate; > + struct v4l2_ctrl *vblank; > + struct v4l2_ctrl *hblank; > + struct v4l2_ctrl *exposure; > + > + /* Current mode */ > + const struct imx258_mode *cur_mode; > + > + /* > + * Mutex for serialized access: > + * Protect sensor module set pad format and start/stop streaming safely. > + */ > + struct mutex mutex; > + > + /* Streaming on/off */ > + bool streaming; > +}; > + > +static inline struct imx258 *to_imx258(struct v4l2_subdev *_sd) > +{ > + return container_of(_sd, struct imx258, sd); > +} > + > +/* Read registers up to 2 at a time */ > +static int imx258_read_reg(struct imx258 *imx258, u16 reg, u32 len, u32 *val) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + struct i2c_msg msgs[2]; > + u8 addr_buf[2] = { reg >> 8, reg & 0xff }; > + u8 data_buf[4] = { 0, }; > + int ret; > + > + if (len > 4) > + return -EINVAL; > + > + /* Write register address */ > + msgs[0].addr = client->addr; > + msgs[0].flags = 0; > + msgs[0].len = ARRAY_SIZE(addr_buf); > + msgs[0].buf = addr_buf; > + > + /* Read data from register */ > + msgs[1].addr = client->addr; > + msgs[1].flags = I2C_M_RD; > + msgs[1].len = len; > + msgs[1].buf = &data_buf[4 - len]; > + > + ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); > + if (ret != ARRAY_SIZE(msgs)) > + return -EIO; > + > + *val = get_unaligned_be32(data_buf); > + > + return 0; > +} > + > +/* Write registers up to 2 at a time */ > +static int imx258_write_reg(struct imx258 *imx258, u16 reg, u32 len, u32 val) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + u8 buf[6]; > + > + if (len > 4) > + return -EINVAL; > + > + put_unaligned_be16(reg, buf); > + put_unaligned_be32(val << (8 * (4 - len)), buf + 2); > + if (i2c_master_send(client, buf, len + 2) != len + 2) > + return -EIO; > + > + return 0; > +} > + > +/* Write a list of registers */ > +static int imx258_write_regs(struct imx258 *imx258, > + const struct imx258_reg *regs, u32 len) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + unsigned int i; > + int ret; > + > + for (i = 0; i < len; i++) { > + ret = imx258_write_reg(imx258, regs[i].address, 1, > + regs[i].val); > + if (ret) { > + dev_err_ratelimited( > + &client->dev, > + "Failed to write reg 0x%4.4x. error = %d\n", > + regs[i].address, ret); > + > + return ret; > + } > + } > + > + return 0; > +} > + > +/* Open sub-device */ > +static int imx258_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) > +{ > + struct v4l2_mbus_framefmt *try_fmt = > + v4l2_subdev_get_try_format(sd, fh->pad, 0); > + > + /* Initialize try_fmt */ > + try_fmt->width = supported_modes[0].width; > + try_fmt->height = supported_modes[0].height; > + try_fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10; > + try_fmt->field = V4L2_FIELD_NONE; > + > + return 0; > +} > + > +static int imx258_update_digital_gain(struct imx258 *imx258, u32 len, u32 val) > +{ > + int ret; > + > + ret = imx258_write_reg(imx258, IMX258_REG_GR_DIGITAL_GAIN, > + IMX258_REG_VALUE_16BIT, > + val); > + if (ret) > + return ret; > + ret = imx258_write_reg(imx258, IMX258_REG_GB_DIGITAL_GAIN, > + IMX258_REG_VALUE_16BIT, > + val); > + if (ret) > + return ret; > + ret = imx258_write_reg(imx258, IMX258_REG_R_DIGITAL_GAIN, > + IMX258_REG_VALUE_16BIT, > + val); > + if (ret) > + return ret; > + ret = imx258_write_reg(imx258, IMX258_REG_B_DIGITAL_GAIN, > + IMX258_REG_VALUE_16BIT, > + val); > + if (ret) > + return ret; > + return 0; > +} > + > +static int imx258_set_ctrl(struct v4l2_ctrl *ctrl) > +{ > + struct imx258 *imx258 = > + container_of(ctrl->handler, struct imx258, ctrl_handler); > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + int ret = 0; > + > + /* > + * Applying V4L2 control value only happens > + * when power is up for streaming > + */ > + if (pm_runtime_get_if_in_use(&client->dev) == 0) > + return 0; > + > + switch (ctrl->id) { > + case V4L2_CID_ANALOGUE_GAIN: > + ret = imx258_write_reg(imx258, IMX258_REG_ANALOG_GAIN, > + IMX258_REG_VALUE_16BIT, > + ctrl->val); > + break; > + case V4L2_CID_EXPOSURE: > + ret = imx258_write_reg(imx258, IMX258_REG_EXPOSURE, > + IMX258_REG_VALUE_16BIT, > + ctrl->val); > + break; > + case V4L2_CID_DIGITAL_GAIN: > + ret = imx258_update_digital_gain(imx258, IMX258_REG_VALUE_16BIT, > + ctrl->val); > + break; > + case V4L2_CID_TEST_PATTERN: > + ret = imx258_write_reg(imx258, IMX258_REG_TEST_PATTERN, > + IMX258_REG_VALUE_16BIT, > + imx258_test_pattern_val[ctrl->val]); > + > + ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL, > + IMX258_REG_VALUE_08BIT, > + ctrl->val == imx258_test_pattern_val > + [IMX258_TEST_PATTERN_DISABLE] ? > + REG_CONFIG_MIRROR_FLIP : > + REG_CONFIG_FLIP_TEST_PATTERN); > + break; > + default: > + dev_info(&client->dev, > + "ctrl(id:0x%x,val:0x%x) is not handled\n", > + ctrl->id, ctrl->val); > + ret = -EINVAL; > + break; > + } > + > + pm_runtime_put(&client->dev); > + > + return ret; > +} > + > +static const struct v4l2_ctrl_ops imx258_ctrl_ops = { > + .s_ctrl = imx258_set_ctrl, > +}; > + > +static int imx258_enum_mbus_code(struct v4l2_subdev *sd, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_subdev_mbus_code_enum *code) > +{ > + /* Only one bayer order(GRBG) is supported */ > + if (code->index > 0) > + return -EINVAL; > + > + code->code = MEDIA_BUS_FMT_SGRBG10_1X10; > + > + return 0; > +} > + > +static int imx258_enum_frame_size(struct v4l2_subdev *sd, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_subdev_frame_size_enum *fse) > +{ > + if (fse->index >= ARRAY_SIZE(supported_modes)) > + return -EINVAL; > + > + if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10) > + return -EINVAL; > + > + fse->min_width = supported_modes[fse->index].width; > + fse->max_width = fse->min_width; > + fse->min_height = supported_modes[fse->index].height; > + fse->max_height = fse->min_height; > + > + return 0; > +} > + > +static void imx258_update_pad_format(const struct imx258_mode *mode, > + struct v4l2_subdev_format *fmt) > +{ > + fmt->format.width = mode->width; > + fmt->format.height = mode->height; > + fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10; > + fmt->format.field = V4L2_FIELD_NONE; > +} > + > +static int __imx258_get_pad_format(struct imx258 *imx258, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_subdev_format *fmt) > +{ > + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) > + fmt->format = *v4l2_subdev_get_try_format(&imx258->sd, cfg, > + fmt->pad); > + else > + imx258_update_pad_format(imx258->cur_mode, fmt); > + > + return 0; > +} > + > +static int imx258_get_pad_format(struct v4l2_subdev *sd, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_subdev_format *fmt) > +{ > + struct imx258 *imx258 = to_imx258(sd); > + int ret; > + > + mutex_lock(&imx258->mutex); > + ret = __imx258_get_pad_format(imx258, cfg, fmt); > + mutex_unlock(&imx258->mutex); > + > + return ret; > +} > + > +static int imx258_set_pad_format(struct v4l2_subdev *sd, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_subdev_format *fmt) > +{ > + struct imx258 *imx258 = to_imx258(sd); > + const struct imx258_mode *mode; > + struct v4l2_mbus_framefmt *framefmt; > + s32 vblank_def; > + s32 vblank_min; > + s64 h_blank; > + s64 pixel_rate; > + s64 link_freq; > + > + mutex_lock(&imx258->mutex); > + > + /* Only one raw bayer(GBRG) order is supported */ > + fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10; > + > + mode = v4l2_find_nearest_size(supported_modes, > + ARRAY_SIZE(supported_modes), width, height, > + fmt->format.width, fmt->format.height); > + imx258_update_pad_format(mode, fmt); > + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { > + framefmt = v4l2_subdev_get_try_format(sd, cfg, fmt->pad); > + *framefmt = fmt->format; > + } else { > + imx258->cur_mode = mode; > + __v4l2_ctrl_s_ctrl(imx258->link_freq, mode->link_freq_index); > + > + link_freq = link_freq_menu_items[mode->link_freq_index]; > + pixel_rate = link_freq_to_pixel_rate(link_freq); > + __v4l2_ctrl_s_ctrl_int64(imx258->pixel_rate, pixel_rate); > + /* Update limits and set FPS to default */ > + vblank_def = imx258->cur_mode->vts_def - > + imx258->cur_mode->height; > + vblank_min = imx258->cur_mode->vts_min - > + imx258->cur_mode->height; > + __v4l2_ctrl_modify_range( > + imx258->vblank, vblank_min, > + IMX258_VTS_MAX - imx258->cur_mode->height, 1, > + vblank_def); > + __v4l2_ctrl_s_ctrl(imx258->vblank, vblank_def); > + h_blank = > + link_freq_configs[mode->link_freq_index].pixels_per_line > + - imx258->cur_mode->width; > + __v4l2_ctrl_modify_range(imx258->hblank, h_blank, > + h_blank, 1, h_blank); > + } > + > + mutex_unlock(&imx258->mutex); > + > + return 0; > +} > + > +/* Start streaming */ > +static int imx258_start_streaming(struct imx258 *imx258) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + const struct imx258_reg_list *reg_list; > + int ret, link_freq_index; > + > + /* Setup PLL */ > + link_freq_index = imx258->cur_mode->link_freq_index; > + reg_list = &link_freq_configs[link_freq_index].reg_list; > + ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs); > + if (ret) { > + dev_err(&client->dev, "%s failed to set plls\n", __func__); > + return ret; > + } > + > + /* Apply default values of current mode */ > + reg_list = &imx258->cur_mode->reg_list; > + ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs); > + if (ret) { > + dev_err(&client->dev, "%s failed to set mode\n", __func__); > + return ret; > + } > + > + /* Set Orientation be 180 degree */ > + ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL, > + IMX258_REG_VALUE_08BIT, REG_CONFIG_MIRROR_FLIP); > + if (ret) { > + dev_err(&client->dev, "%s failed to set orientation\n", > + __func__); > + return ret; > + } > + > + /* Apply customized values from user */ > + ret = __v4l2_ctrl_handler_setup(imx258->sd.ctrl_handler); > + if (ret) > + return ret; > + > + /* set stream on register */ > + return imx258_write_reg(imx258, IMX258_REG_MODE_SELECT, > + IMX258_REG_VALUE_08BIT, > + IMX258_MODE_STREAMING); > +} > + > +/* Stop streaming */ > +static int imx258_stop_streaming(struct imx258 *imx258) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + int ret; > + > + /* set stream off register */ > + ret = imx258_write_reg(imx258, IMX258_REG_MODE_SELECT, > + IMX258_REG_VALUE_08BIT, IMX258_MODE_STANDBY); > + if (ret) > + dev_err(&client->dev, "%s failed to set stream\n", __func__); > + > + /* > + * Return success even if it was an error, as there is nothing the > + * caller can do about it. > + */ > + return 0; > +} > + > +static int imx258_set_stream(struct v4l2_subdev *sd, int enable) > +{ > + struct imx258 *imx258 = to_imx258(sd); > + struct i2c_client *client = v4l2_get_subdevdata(sd); > + int ret = 0; > + > + mutex_lock(&imx258->mutex); > + if (imx258->streaming == enable) { > + mutex_unlock(&imx258->mutex); > + return 0; > + } > + > + if (enable) { > + ret = pm_runtime_get_sync(&client->dev); > + if (ret < 0) { > + pm_runtime_put_noidle(&client->dev); > + goto err_unlock; > + } > + > + /* > + * Apply default & customized values > + * and then start streaming. > + */ > + ret = imx258_start_streaming(imx258); > + if (ret) > + goto err_rpm_put; > + } else { > + imx258_stop_streaming(imx258); > + pm_runtime_put(&client->dev); > + } > + > + imx258->streaming = enable; > + mutex_unlock(&imx258->mutex); > + > + return ret; > + > +err_rpm_put: > + pm_runtime_put(&client->dev); > +err_unlock: > + mutex_unlock(&imx258->mutex); > + > + return ret; > +} > + > +static int __maybe_unused imx258_suspend(struct device *dev) > +{ > + struct i2c_client *client = to_i2c_client(dev); > + struct v4l2_subdev *sd = i2c_get_clientdata(client); > + struct imx258 *imx258 = to_imx258(sd); > + > + if (imx258->streaming) > + imx258_stop_streaming(imx258); > + > + return 0; > +} > + > +static int __maybe_unused imx258_resume(struct device *dev) > +{ > + struct i2c_client *client = to_i2c_client(dev); > + struct v4l2_subdev *sd = i2c_get_clientdata(client); > + struct imx258 *imx258 = to_imx258(sd); > + int ret; > + > + if (imx258->streaming) { > + ret = imx258_start_streaming(imx258); > + if (ret) > + goto error; > + } > + > + return 0; > + > +error: > + imx258_stop_streaming(imx258); > + imx258->streaming = 0; > + return ret; > +} > + > +/* Verify chip ID */ > +static int imx258_identify_module(struct imx258 *imx258) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + int ret; > + u32 val; > + > + ret = imx258_read_reg(imx258, IMX258_REG_CHIP_ID, > + IMX258_REG_VALUE_16BIT, &val); > + if (ret) { > + dev_err(&client->dev, "failed to read chip id %x\n", > + IMX258_CHIP_ID); > + return ret; > + } > + > + if (val != IMX258_CHIP_ID) { > + dev_err(&client->dev, "chip id mismatch: %x!=%x\n", > + IMX258_CHIP_ID, val); > + return -EIO; > + } > + > + return 0; > +} > + > +static const struct v4l2_subdev_video_ops imx258_video_ops = { > + .s_stream = imx258_set_stream, > +}; > + > +static const struct v4l2_subdev_pad_ops imx258_pad_ops = { > + .enum_mbus_code = imx258_enum_mbus_code, > + .get_fmt = imx258_get_pad_format, > + .set_fmt = imx258_set_pad_format, > + .enum_frame_size = imx258_enum_frame_size, > +}; > + > +static const struct v4l2_subdev_ops imx258_subdev_ops = { > + .video = &imx258_video_ops, > + .pad = &imx258_pad_ops, > +}; > + > +static const struct v4l2_subdev_internal_ops imx258_internal_ops = { > + .open = imx258_open, > +}; > + > +/* Initialize control handlers */ > +static int imx258_init_controls(struct imx258 *imx258) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + struct v4l2_ctrl_handler *ctrl_hdlr; > + s64 exposure_max; > + s64 vblank_def; > + s64 vblank_min; > + s64 pixel_rate_min; > + s64 pixel_rate_max; > + int ret; > + > + ctrl_hdlr = &imx258->ctrl_handler; > + ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8); > + if (ret) > + return ret; > + > + mutex_init(&imx258->mutex); > + ctrl_hdlr->lock = &imx258->mutex; > + imx258->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr, > + &imx258_ctrl_ops, > + V4L2_CID_LINK_FREQ, > + ARRAY_SIZE(link_freq_menu_items) - 1, > + 0, > + link_freq_menu_items); > + > + if (imx258->link_freq) > + imx258->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; > + > + pixel_rate_max = link_freq_to_pixel_rate(link_freq_menu_items[0]); > + pixel_rate_min = link_freq_to_pixel_rate(link_freq_menu_items[1]); > + /* By default, PIXEL_RATE is read only */ > + imx258->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, > + V4L2_CID_PIXEL_RATE, > + pixel_rate_min, pixel_rate_max, > + 1, pixel_rate_max); > + > + > + vblank_def = imx258->cur_mode->vts_def - imx258->cur_mode->height; > + vblank_min = imx258->cur_mode->vts_min - imx258->cur_mode->height; > + imx258->vblank = v4l2_ctrl_new_std( > + ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_VBLANK, > + vblank_min, > + IMX258_VTS_MAX - imx258->cur_mode->height, 1, > + vblank_def); > + > + if (imx258->vblank) > + imx258->vblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; > + > + imx258->hblank = v4l2_ctrl_new_std( > + ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_HBLANK, > + IMX258_PPL_DEFAULT - imx258->cur_mode->width, > + IMX258_PPL_DEFAULT - imx258->cur_mode->width, > + 1, > + IMX258_PPL_DEFAULT - imx258->cur_mode->width); > + > + if (imx258->hblank) > + imx258->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; > + > + exposure_max = imx258->cur_mode->vts_def - 8; > + imx258->exposure = v4l2_ctrl_new_std( > + ctrl_hdlr, &imx258_ctrl_ops, > + V4L2_CID_EXPOSURE, IMX258_EXPOSURE_MIN, > + IMX258_EXPOSURE_MAX, IMX258_EXPOSURE_STEP, > + IMX258_EXPOSURE_DEFAULT); > + > + v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, > + IMX258_ANA_GAIN_MIN, IMX258_ANA_GAIN_MAX, > + IMX258_ANA_GAIN_STEP, IMX258_ANA_GAIN_DEFAULT); > + > + v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_DIGITAL_GAIN, > + IMX258_DGTL_GAIN_MIN, IMX258_DGTL_GAIN_MAX, > + IMX258_DGTL_GAIN_STEP, > + IMX258_DGTL_GAIN_DEFAULT); > + > + v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &imx258_ctrl_ops, > + V4L2_CID_TEST_PATTERN, > + ARRAY_SIZE(imx258_test_pattern_menu) - 1, > + 0, 0, imx258_test_pattern_menu); > + > + if (ctrl_hdlr->error) { > + ret = ctrl_hdlr->error; > + dev_err(&client->dev, "%s control init failed (%d)\n", > + __func__, ret); > + goto error; > + } > + > + imx258->sd.ctrl_handler = ctrl_hdlr; > + > + return 0; > + > +error: > + v4l2_ctrl_handler_free(ctrl_hdlr); > + mutex_destroy(&imx258->mutex); > + > + return ret; > +} > + > +static void imx258_free_controls(struct imx258 *imx258) > +{ > + v4l2_ctrl_handler_free(imx258->sd.ctrl_handler); > + mutex_destroy(&imx258->mutex); > +} > + > +static int imx258_probe(struct i2c_client *client) > +{ > + struct imx258 *imx258; > + int ret; > + u32 val = 0; > + > + device_property_read_u32(&client->dev, "clock-frequency", &val); > + if (val != 19200000) > + return -EINVAL; > + > + imx258 = devm_kzalloc(&client->dev, sizeof(*imx258), GFP_KERNEL); > + if (!imx258) > + return -ENOMEM; > + > + /* Initialize subdev */ > + v4l2_i2c_subdev_init(&imx258->sd, client, &imx258_subdev_ops); > + > + /* Check module identity */ > + ret = imx258_identify_module(imx258); > + if (ret) > + return ret; > + > + /* Set default mode to max resolution */ > + imx258->cur_mode = &supported_modes[0]; > + > + ret = imx258_init_controls(imx258); > + if (ret) > + return ret; > + > + /* Initialize subdev */ > + imx258->sd.internal_ops = &imx258_internal_ops; > + imx258->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; > + imx258->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; > + > + /* Initialize source pad */ > + imx258->pad.flags = MEDIA_PAD_FL_SOURCE; > + > + ret = media_entity_pads_init(&imx258->sd.entity, 1, &imx258->pad); > + if (ret) { > + goto error_handler_free; > + } > + > + ret = v4l2_async_register_subdev_sensor_common(&imx258->sd); > + if (ret < 0) > + goto error_media_entity; > + > + pm_runtime_set_active(&client->dev); > + pm_runtime_enable(&client->dev); > + pm_runtime_idle(&client->dev); > + > + return 0; > + > +error_media_entity: > + media_entity_cleanup(&imx258->sd.entity); > + > +error_handler_free: > + imx258_free_controls(imx258); > + > + return ret; > +} > + > +static int imx258_remove(struct i2c_client *client) > +{ > + struct v4l2_subdev *sd = i2c_get_clientdata(client); > + struct imx258 *imx258 = to_imx258(sd); > + > + v4l2_async_unregister_subdev(sd); > + media_entity_cleanup(&sd->entity); > + imx258_free_controls(imx258); > + > + pm_runtime_disable(&client->dev); > + pm_runtime_set_suspended(&client->dev); > + > + return 0; > +} > + > +static const struct dev_pm_ops imx258_pm_ops = { > + SET_SYSTEM_SLEEP_PM_OPS(imx258_suspend, imx258_resume) > +}; > + > +#ifdef CONFIG_ACPI > +static const struct acpi_device_id imx258_acpi_ids[] = { > + { "SONY258A" }, > + { /* sentinel */ } > +}; > + > +MODULE_DEVICE_TABLE(acpi, imx258_acpi_ids); > +#endif > + > +static struct i2c_driver imx258_i2c_driver = { > + .driver = { > + .name = "imx258", > + .pm = &imx258_pm_ops, > + .acpi_match_table = ACPI_PTR(imx258_acpi_ids), > + }, > + .probe_new = imx258_probe, > + .remove = imx258_remove, > +}; > + > +module_i2c_driver(imx258_i2c_driver); > + > +MODULE_AUTHOR("Yeh, Andy <andy.yeh@intel.com>"); > +MODULE_AUTHOR("Chiang, Alan <alanx.chiang@intel.com>"); > +MODULE_AUTHOR("Chen, Jason <jasonx.z.chen@intel.com>"); > +MODULE_DESCRIPTION("Sony IMX258 sensor driver"); > +MODULE_LICENSE("GPL v2"); Thanks, Mauro
Hi Andy, A small catch which should be fixed along with your incremental patch. On 2018-05-02 at 23:46:08 +0800, Andy Yeh wrote: > From: Jason Chen <jasonx.z.chen@intel.com> > > Add a V4L2 sub-device driver for the Sony IMX258 image sensor. > This is a camera sensor using the I2C bus for control and the > CSI-2 bus for data. > > Signed-off-by: Andy Yeh <andy.yeh@intel.com> > Signed-off-by: Alan Chiang <alanx.chiang@intel.com> > Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com> > Reviewed-by: Tomasz Figa <tfiga@chromium.org> > > --- > since v2: > -- Update the streaming function to remove SW_STANDBY in the beginning. > -- Adjust the delay time from 1ms to 12ms before set stream-on register. > since v3: > -- fix the sd.entity to make code be compiled on the mainline kernel. > since v4: > -- Enabled AG, DG, and Exposure time control correctly. > since v5: > -- Sensor vendor provided a new setting to fix different CLK issue > -- Add one more resolution for 1048x780, used for VGA streaming > since v6: > -- improved i2c read/write function to support writing 2 registers > -- modified i2c reg read/write function with a more portable way > -- utilized v4l2_find_nearest_size instead of the local find_best_fit function > -- defined an enum for the link freq entries for explicit indexing > since v7: > -- Removed usleep due to sufficient delay implemented in coreboot > -- Added handling for VBLANK control that auto frame-line-control is enabled > since v8: > -- Fix some error return and intents > since v9: > -- Fix a typo (fmr -> fmt) > since v9.1: > -- Add code for test pattern control > -- set vblank and read only since auto-FLL is enabled > since v10: > -- Implement test pattern feature: > -- Output order of test pattern is always BGGR, so it needs a flip to rotate bayer pattern to required one (GRBG) > > > MAINTAINERS | 7 + > drivers/media/i2c/Kconfig | 11 + > drivers/media/i2c/Makefile | 1 + > drivers/media/i2c/imx258.c | 1321 ++++++++++++++++++++++++++++++++++++++++++++ > 4 files changed, 1340 insertions(+) > create mode 100644 drivers/media/i2c/imx258.c > > diff --git a/MAINTAINERS b/MAINTAINERS > index a339bb5..9f75510 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -12646,6 +12646,13 @@ S: Maintained > F: drivers/ssb/ > F: include/linux/ssb/ > > +SONY IMX258 SENSOR DRIVER > +M: Sakari Ailus <sakari.ailus@linux.intel.com> > +L: linux-media@vger.kernel.org > +T: git git://linuxtv.org/media_tree.git > +S: Maintained > +F: drivers/media/i2c/imx258.c > + > SONY IMX274 SENSOR DRIVER > M: Leon Luo <leonl@leopardimaging.com> > L: linux-media@vger.kernel.org > diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig > index fd01842..bcd4bf1 100644 > --- a/drivers/media/i2c/Kconfig > +++ b/drivers/media/i2c/Kconfig > @@ -565,6 +565,17 @@ config VIDEO_APTINA_PLL > config VIDEO_SMIAPP_PLL > tristate > > +config VIDEO_IMX258 > + tristate "Sony IMX258 sensor support" > + depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API > + depends on MEDIA_CAMERA_SUPPORT > + ---help--- > + This is a Video4Linux2 sensor-level driver for the Sony > + IMX258 camera. > + > + To compile this driver as a module, choose M here: the > + module will be called imx258. > + > config VIDEO_IMX274 > tristate "Sony IMX274 sensor support" > depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API > diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile > index 1b62639..4bf7d00 100644 > --- a/drivers/media/i2c/Makefile > +++ b/drivers/media/i2c/Makefile > @@ -94,6 +94,7 @@ obj-$(CONFIG_VIDEO_IR_I2C) += ir-kbd-i2c.o > obj-$(CONFIG_VIDEO_ML86V7667) += ml86v7667.o > obj-$(CONFIG_VIDEO_OV2659) += ov2659.o > obj-$(CONFIG_VIDEO_TC358743) += tc358743.o > +obj-$(CONFIG_VIDEO_IMX258) += imx258.o > obj-$(CONFIG_VIDEO_IMX274) += imx274.o > > obj-$(CONFIG_SDR_MAX2175) += max2175.o > diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c > new file mode 100644 > index 0000000..b2e6d06 > --- /dev/null > +++ b/drivers/media/i2c/imx258.c > @@ -0,0 +1,1321 @@ > +// SPDX-License-Identifier: GPL-2.0 > +// Copyright (C) 2018 Intel Corporation > + > +#include <linux/acpi.h> > +#include <linux/delay.h> > +#include <linux/i2c.h> > +#include <linux/module.h> > +#include <linux/pm_runtime.h> > +#include <media/v4l2-ctrls.h> > +#include <media/v4l2-device.h> > +#include <asm/unaligned.h> > + > +#define IMX258_REG_VALUE_08BIT 1 > +#define IMX258_REG_VALUE_16BIT 2 > + > +#define IMX258_REG_MODE_SELECT 0x0100 > +#define IMX258_MODE_STANDBY 0x00 > +#define IMX258_MODE_STREAMING 0x01 > + > +/* Chip ID */ > +#define IMX258_REG_CHIP_ID 0x0016 > +#define IMX258_CHIP_ID 0x0258 > + > +/* V_TIMING internal */ > +#define IMX258_VTS_30FPS 0x0c98 > +#define IMX258_VTS_30FPS_2K 0x0638 > +#define IMX258_VTS_30FPS_VGA 0x034c > +#define IMX258_VTS_MAX 0xffff > + > +/*Frame Length Line*/ > +#define IMX258_FLL_MIN 0x08a6 > +#define IMX258_FLL_MAX 0xffff > +#define IMX258_FLL_STEP 1 > +#define IMX258_FLL_DEFAULT 0x0c98 > + > +/* HBLANK control - read only */ > +#define IMX258_PPL_DEFAULT 5352 > + > +/* Exposure control */ > +#define IMX258_REG_EXPOSURE 0x0202 > +#define IMX258_EXPOSURE_MIN 4 > +#define IMX258_EXPOSURE_STEP 1 > +#define IMX258_EXPOSURE_DEFAULT 0x640 > +#define IMX258_EXPOSURE_MAX 65535 > + > +/* Analog gain control */ > +#define IMX258_REG_ANALOG_GAIN 0x0204 > +#define IMX258_ANA_GAIN_MIN 0 > +#define IMX258_ANA_GAIN_MAX 0x1fff > +#define IMX258_ANA_GAIN_STEP 1 > +#define IMX258_ANA_GAIN_DEFAULT 0x0 > + > +/* Digital gain control */ > +#define IMX258_REG_GR_DIGITAL_GAIN 0x020e > +#define IMX258_REG_R_DIGITAL_GAIN 0x0210 > +#define IMX258_REG_B_DIGITAL_GAIN 0x0212 > +#define IMX258_REG_GB_DIGITAL_GAIN 0x0214 > +#define IMX258_DGTL_GAIN_MIN 0 > +#define IMX258_DGTL_GAIN_MAX 4096 /* Max = 0xFFF */ > +#define IMX258_DGTL_GAIN_DEFAULT 1024 > +#define IMX258_DGTL_GAIN_STEP 1 > + > +/* Test Pattern Control */ > +#define IMX258_REG_TEST_PATTERN 0x0600 > +#define IMX258_TEST_PATTERN_DISABLE 0 > +#define IMX258_TEST_PATTERN_SOLID_COLOR 1 > +#define IMX258_TEST_PATTERN_COLOR_BARS 2 > +#define IMX258_TEST_PATTERN_GREY_COLOR 3 > +#define IMX258_TEST_PATTERN_PN9 4 > + > +/* Orientation */ > +#define REG_MIRROR_FLIP_CONTROL 0x0101 > +#define REG_CONFIG_MIRROR_FLIP 0x03 > +#define REG_CONFIG_FLIP_TEST_PATTERN 0x02 > + > +struct imx258_reg { > + u16 address; > + u8 val; > +}; > + > +struct imx258_reg_list { > + u32 num_of_regs; > + const struct imx258_reg *regs; > +}; > + > +/* Link frequency config */ > +struct imx258_link_freq_config { > + u32 pixels_per_line; > + > + /* PLL registers for this link frequency */ > + struct imx258_reg_list reg_list; > +}; > + > +/* Mode : resolution and related config&values */ > +struct imx258_mode { > + /* Frame width */ > + u32 width; > + /* Frame height */ > + u32 height; > + > + /* V-timing */ > + u32 vts_def; > + u32 vts_min; > + > + /* Index of Link frequency config to be used */ > + u32 link_freq_index; > + /* Default register values */ > + struct imx258_reg_list reg_list; > +}; > + > +/* 4208x3118 needs 1267Mbps/lane, 4 lanes */ > +static const struct imx258_reg mipi_data_rate_1267mbps[] = { > + { 0x0301, 0x05 }, > + { 0x0303, 0x02 }, > + { 0x0305, 0x03 }, > + { 0x0306, 0x00 }, > + { 0x0307, 0xC6 }, > + { 0x0309, 0x0A }, > + { 0x030B, 0x01 }, > + { 0x030D, 0x02 }, > + { 0x030E, 0x00 }, > + { 0x030F, 0xD8 }, > + { 0x0310, 0x00 }, > + { 0x0820, 0x13 }, > + { 0x0821, 0x4C }, > + { 0x0822, 0xCC }, > + { 0x0823, 0xCC }, > +}; > + > +static const struct imx258_reg mipi_data_rate_640mbps[] = { > + { 0x0301, 0x05 }, > + { 0x0303, 0x02 }, > + { 0x0305, 0x03 }, > + { 0x0306, 0x00 }, > + { 0x0307, 0x64 }, > + { 0x0309, 0x0A }, > + { 0x030B, 0x01 }, > + { 0x030D, 0x02 }, > + { 0x030E, 0x00 }, > + { 0x030F, 0xD8 }, > + { 0x0310, 0x00 }, > + { 0x0820, 0x0A }, > + { 0x0821, 0x00 }, > + { 0x0822, 0x00 }, > + { 0x0823, 0x00 }, > +}; > + > +static const struct imx258_reg mode_4208x3118_regs[] = { > + { 0x0136, 0x13 }, > + { 0x0137, 0x33 }, > + { 0x3051, 0x00 }, > + { 0x3052, 0x00 }, > + { 0x4E21, 0x14 }, > + { 0x6B11, 0xCF }, > + { 0x7FF0, 0x08 }, > + { 0x7FF1, 0x0F }, > + { 0x7FF2, 0x08 }, > + { 0x7FF3, 0x1B }, > + { 0x7FF4, 0x23 }, > + { 0x7FF5, 0x60 }, > + { 0x7FF6, 0x00 }, > + { 0x7FF7, 0x01 }, > + { 0x7FF8, 0x00 }, > + { 0x7FF9, 0x78 }, > + { 0x7FFA, 0x00 }, > + { 0x7FFB, 0x00 }, > + { 0x7FFC, 0x00 }, > + { 0x7FFD, 0x00 }, > + { 0x7FFE, 0x00 }, > + { 0x7FFF, 0x03 }, > + { 0x7F76, 0x03 }, > + { 0x7F77, 0xFE }, > + { 0x7FA8, 0x03 }, > + { 0x7FA9, 0xFE }, > + { 0x7B24, 0x81 }, > + { 0x7B25, 0x00 }, > + { 0x6564, 0x07 }, > + { 0x6B0D, 0x41 }, > + { 0x653D, 0x04 }, > + { 0x6B05, 0x8C }, > + { 0x6B06, 0xF9 }, > + { 0x6B08, 0x65 }, > + { 0x6B09, 0xFC }, > + { 0x6B0A, 0xCF }, > + { 0x6B0B, 0xD2 }, > + { 0x6700, 0x0E }, > + { 0x6707, 0x0E }, > + { 0x9104, 0x00 }, > + { 0x4648, 0x7F }, > + { 0x7420, 0x00 }, > + { 0x7421, 0x1C }, > + { 0x7422, 0x00 }, > + { 0x7423, 0xD7 }, > + { 0x5F04, 0x00 }, > + { 0x5F05, 0xED }, > + { 0x0112, 0x0A }, > + { 0x0113, 0x0A }, > + { 0x0114, 0x03 }, > + { 0x0342, 0x14 }, > + { 0x0343, 0xE8 }, > + { 0x0340, 0x0C }, > + { 0x0341, 0x50 }, > + { 0x0344, 0x00 }, > + { 0x0345, 0x00 }, > + { 0x0346, 0x00 }, > + { 0x0347, 0x00 }, > + { 0x0348, 0x10 }, > + { 0x0349, 0x6F }, > + { 0x034A, 0x0C }, > + { 0x034B, 0x2E }, > + { 0x0381, 0x01 }, > + { 0x0383, 0x01 }, > + { 0x0385, 0x01 }, > + { 0x0387, 0x01 }, > + { 0x0900, 0x00 }, > + { 0x0901, 0x11 }, > + { 0x0401, 0x00 }, > + { 0x0404, 0x00 }, > + { 0x0405, 0x10 }, > + { 0x0408, 0x00 }, > + { 0x0409, 0x00 }, > + { 0x040A, 0x00 }, > + { 0x040B, 0x00 }, > + { 0x040C, 0x10 }, > + { 0x040D, 0x70 }, > + { 0x040E, 0x0C }, > + { 0x040F, 0x30 }, > + { 0x3038, 0x00 }, > + { 0x303A, 0x00 }, > + { 0x303B, 0x10 }, > + { 0x300D, 0x00 }, > + { 0x034C, 0x10 }, > + { 0x034D, 0x70 }, > + { 0x034E, 0x0C }, > + { 0x034F, 0x30 }, > + { 0x0350, 0x01 }, > + { 0x0202, 0x0C }, > + { 0x0203, 0x46 }, > + { 0x0204, 0x00 }, > + { 0x0205, 0x00 }, > + { 0x020E, 0x01 }, > + { 0x020F, 0x00 }, > + { 0x0210, 0x01 }, > + { 0x0211, 0x00 }, > + { 0x0212, 0x01 }, > + { 0x0213, 0x00 }, > + { 0x0214, 0x01 }, > + { 0x0215, 0x00 }, > + { 0x7BCD, 0x00 }, > + { 0x94DC, 0x20 }, > + { 0x94DD, 0x20 }, > + { 0x94DE, 0x20 }, > + { 0x95DC, 0x20 }, > + { 0x95DD, 0x20 }, > + { 0x95DE, 0x20 }, > + { 0x7FB0, 0x00 }, > + { 0x9010, 0x3E }, > + { 0x9419, 0x50 }, > + { 0x941B, 0x50 }, > + { 0x9519, 0x50 }, > + { 0x951B, 0x50 }, > + { 0x3030, 0x00 }, > + { 0x3032, 0x00 }, > + { 0x0220, 0x00 }, > +}; > + > +static const struct imx258_reg mode_2104_1560_regs[] = { > + { 0x0136, 0x13 }, > + { 0x0137, 0x33 }, > + { 0x3051, 0x00 }, > + { 0x3052, 0x00 }, > + { 0x4E21, 0x14 }, > + { 0x6B11, 0xCF }, > + { 0x7FF0, 0x08 }, > + { 0x7FF1, 0x0F }, > + { 0x7FF2, 0x08 }, > + { 0x7FF3, 0x1B }, > + { 0x7FF4, 0x23 }, > + { 0x7FF5, 0x60 }, > + { 0x7FF6, 0x00 }, > + { 0x7FF7, 0x01 }, > + { 0x7FF8, 0x00 }, > + { 0x7FF9, 0x78 }, > + { 0x7FFA, 0x00 }, > + { 0x7FFB, 0x00 }, > + { 0x7FFC, 0x00 }, > + { 0x7FFD, 0x00 }, > + { 0x7FFE, 0x00 }, > + { 0x7FFF, 0x03 }, > + { 0x7F76, 0x03 }, > + { 0x7F77, 0xFE }, > + { 0x7FA8, 0x03 }, > + { 0x7FA9, 0xFE }, > + { 0x7B24, 0x81 }, > + { 0x7B25, 0x00 }, > + { 0x6564, 0x07 }, > + { 0x6B0D, 0x41 }, > + { 0x653D, 0x04 }, > + { 0x6B05, 0x8C }, > + { 0x6B06, 0xF9 }, > + { 0x6B08, 0x65 }, > + { 0x6B09, 0xFC }, > + { 0x6B0A, 0xCF }, > + { 0x6B0B, 0xD2 }, > + { 0x6700, 0x0E }, > + { 0x6707, 0x0E }, > + { 0x9104, 0x00 }, > + { 0x4648, 0x7F }, > + { 0x7420, 0x00 }, > + { 0x7421, 0x1C }, > + { 0x7422, 0x00 }, > + { 0x7423, 0xD7 }, > + { 0x5F04, 0x00 }, > + { 0x5F05, 0xED }, > + { 0x0112, 0x0A }, > + { 0x0113, 0x0A }, > + { 0x0114, 0x03 }, > + { 0x0342, 0x14 }, > + { 0x0343, 0xE8 }, > + { 0x0340, 0x06 }, > + { 0x0341, 0x38 }, > + { 0x0344, 0x00 }, > + { 0x0345, 0x00 }, > + { 0x0346, 0x00 }, > + { 0x0347, 0x00 }, > + { 0x0348, 0x10 }, > + { 0x0349, 0x6F }, > + { 0x034A, 0x0C }, > + { 0x034B, 0x2E }, > + { 0x0381, 0x01 }, > + { 0x0383, 0x01 }, > + { 0x0385, 0x01 }, > + { 0x0387, 0x01 }, > + { 0x0900, 0x01 }, > + { 0x0901, 0x12 }, > + { 0x0401, 0x01 }, > + { 0x0404, 0x00 }, > + { 0x0405, 0x20 }, > + { 0x0408, 0x00 }, > + { 0x0409, 0x02 }, > + { 0x040A, 0x00 }, > + { 0x040B, 0x00 }, > + { 0x040C, 0x10 }, > + { 0x040D, 0x6A }, > + { 0x040E, 0x06 }, > + { 0x040F, 0x18 }, > + { 0x3038, 0x00 }, > + { 0x303A, 0x00 }, > + { 0x303B, 0x10 }, > + { 0x300D, 0x00 }, > + { 0x034C, 0x08 }, > + { 0x034D, 0x38 }, > + { 0x034E, 0x06 }, > + { 0x034F, 0x18 }, > + { 0x0350, 0x01 }, > + { 0x0202, 0x06 }, > + { 0x0203, 0x2E }, > + { 0x0204, 0x00 }, > + { 0x0205, 0x00 }, > + { 0x020E, 0x01 }, > + { 0x020F, 0x00 }, > + { 0x0210, 0x01 }, > + { 0x0211, 0x00 }, > + { 0x0212, 0x01 }, > + { 0x0213, 0x00 }, > + { 0x0214, 0x01 }, > + { 0x0215, 0x00 }, > + { 0x7BCD, 0x01 }, > + { 0x94DC, 0x20 }, > + { 0x94DD, 0x20 }, > + { 0x94DE, 0x20 }, > + { 0x95DC, 0x20 }, > + { 0x95DD, 0x20 }, > + { 0x95DE, 0x20 }, > + { 0x7FB0, 0x00 }, > + { 0x9010, 0x3E }, > + { 0x9419, 0x50 }, > + { 0x941B, 0x50 }, > + { 0x9519, 0x50 }, > + { 0x951B, 0x50 }, > + { 0x3030, 0x00 }, > + { 0x3032, 0x00 }, > + { 0x0220, 0x00 }, > +}; > + > +static const struct imx258_reg mode_1048_780_regs[] = { > + { 0x0136, 0x13 }, > + { 0x0137, 0x33 }, > + { 0x3051, 0x00 }, > + { 0x3052, 0x00 }, > + { 0x4E21, 0x14 }, > + { 0x6B11, 0xCF }, > + { 0x7FF0, 0x08 }, > + { 0x7FF1, 0x0F }, > + { 0x7FF2, 0x08 }, > + { 0x7FF3, 0x1B }, > + { 0x7FF4, 0x23 }, > + { 0x7FF5, 0x60 }, > + { 0x7FF6, 0x00 }, > + { 0x7FF7, 0x01 }, > + { 0x7FF8, 0x00 }, > + { 0x7FF9, 0x78 }, > + { 0x7FFA, 0x00 }, > + { 0x7FFB, 0x00 }, > + { 0x7FFC, 0x00 }, > + { 0x7FFD, 0x00 }, > + { 0x7FFE, 0x00 }, > + { 0x7FFF, 0x03 }, > + { 0x7F76, 0x03 }, > + { 0x7F77, 0xFE }, > + { 0x7FA8, 0x03 }, > + { 0x7FA9, 0xFE }, > + { 0x7B24, 0x81 }, > + { 0x7B25, 0x00 }, > + { 0x6564, 0x07 }, > + { 0x6B0D, 0x41 }, > + { 0x653D, 0x04 }, > + { 0x6B05, 0x8C }, > + { 0x6B06, 0xF9 }, > + { 0x6B08, 0x65 }, > + { 0x6B09, 0xFC }, > + { 0x6B0A, 0xCF }, > + { 0x6B0B, 0xD2 }, > + { 0x6700, 0x0E }, > + { 0x6707, 0x0E }, > + { 0x9104, 0x00 }, > + { 0x4648, 0x7F }, > + { 0x7420, 0x00 }, > + { 0x7421, 0x1C }, > + { 0x7422, 0x00 }, > + { 0x7423, 0xD7 }, > + { 0x5F04, 0x00 }, > + { 0x5F05, 0xED }, > + { 0x0112, 0x0A }, > + { 0x0113, 0x0A }, > + { 0x0114, 0x03 }, > + { 0x0342, 0x14 }, > + { 0x0343, 0xE8 }, > + { 0x0340, 0x03 }, > + { 0x0341, 0x4C }, > + { 0x0344, 0x00 }, > + { 0x0345, 0x00 }, > + { 0x0346, 0x00 }, > + { 0x0347, 0x00 }, > + { 0x0348, 0x10 }, > + { 0x0349, 0x6F }, > + { 0x034A, 0x0C }, > + { 0x034B, 0x2E }, > + { 0x0381, 0x01 }, > + { 0x0383, 0x01 }, > + { 0x0385, 0x01 }, > + { 0x0387, 0x01 }, > + { 0x0900, 0x01 }, > + { 0x0901, 0x14 }, > + { 0x0401, 0x01 }, > + { 0x0404, 0x00 }, > + { 0x0405, 0x40 }, > + { 0x0408, 0x00 }, > + { 0x0409, 0x06 }, > + { 0x040A, 0x00 }, > + { 0x040B, 0x00 }, > + { 0x040C, 0x10 }, > + { 0x040D, 0x64 }, > + { 0x040E, 0x03 }, > + { 0x040F, 0x0C }, > + { 0x3038, 0x00 }, > + { 0x303A, 0x00 }, > + { 0x303B, 0x10 }, > + { 0x300D, 0x00 }, > + { 0x034C, 0x04 }, > + { 0x034D, 0x18 }, > + { 0x034E, 0x03 }, > + { 0x034F, 0x0C }, > + { 0x0350, 0x01 }, > + { 0x0202, 0x03 }, > + { 0x0203, 0x42 }, > + { 0x0204, 0x00 }, > + { 0x0205, 0x00 }, > + { 0x020E, 0x01 }, > + { 0x020F, 0x00 }, > + { 0x0210, 0x01 }, > + { 0x0211, 0x00 }, > + { 0x0212, 0x01 }, > + { 0x0213, 0x00 }, > + { 0x0214, 0x01 }, > + { 0x0215, 0x00 }, > + { 0x7BCD, 0x00 }, > + { 0x94DC, 0x20 }, > + { 0x94DD, 0x20 }, > + { 0x94DE, 0x20 }, > + { 0x95DC, 0x20 }, > + { 0x95DD, 0x20 }, > + { 0x95DE, 0x20 }, > + { 0x7FB0, 0x00 }, > + { 0x9010, 0x3E }, > + { 0x9419, 0x50 }, > + { 0x941B, 0x50 }, > + { 0x9519, 0x50 }, > + { 0x951B, 0x50 }, > + { 0x3030, 0x00 }, > + { 0x3032, 0x00 }, > + { 0x0220, 0x00 }, > +}; > + > +static const char * const imx258_test_pattern_menu[] = { > + "Disabled", > + "Color Bars", > + "Solid Color", > + "Grey Color Bars", > + "PN9" > +}; > + > +static const int imx258_test_pattern_val[] = { > + IMX258_TEST_PATTERN_DISABLE, > + IMX258_TEST_PATTERN_COLOR_BARS, > + IMX258_TEST_PATTERN_SOLID_COLOR, > + IMX258_TEST_PATTERN_GREY_COLOR, > + IMX258_TEST_PATTERN_PN9, > +}; > + > +/* Configurations for supported link frequencies */ > +#define IMX258_LINK_FREQ_634MHZ 633600000ULL > +#define IMX258_LINK_FREQ_320MHZ 320000000ULL > + > +enum { > + IMX258_LINK_FREQ_1267MBPS, > + IMX258_LINK_FREQ_640MBPS, > +}; > + > +/* > + * pixel_rate = link_freq * data-rate * nr_of_lanes / bits_per_sample > + * data rate => double data rate; number of lanes => 4; bits per pixel => 10 > + */ > +static u64 link_freq_to_pixel_rate(u64 f) > +{ > + f *= 2 * 4; > + do_div(f, 10); > + > + return f; > +} > + > +/* Menu items for LINK_FREQ V4L2 control */ > +static const s64 link_freq_menu_items[] = { > + IMX258_LINK_FREQ_634MHZ, > + IMX258_LINK_FREQ_320MHZ, > +}; > + > +/* Link frequency configs */ > +static const struct imx258_link_freq_config link_freq_configs[] = { > + [IMX258_LINK_FREQ_1267MBPS] = { > + .pixels_per_line = IMX258_PPL_DEFAULT, > + .reg_list = { > + .num_of_regs = ARRAY_SIZE(mipi_data_rate_1267mbps), > + .regs = mipi_data_rate_1267mbps, > + } > + }, > + [IMX258_LINK_FREQ_640MBPS] = { > + .pixels_per_line = IMX258_PPL_DEFAULT, > + .reg_list = { > + .num_of_regs = ARRAY_SIZE(mipi_data_rate_640mbps), > + .regs = mipi_data_rate_640mbps, > + } > + }, > +}; > + > +/* Mode configs */ > +static const struct imx258_mode supported_modes[] = { > + { > + .width = 4208, > + .height = 3118, > + .vts_def = IMX258_VTS_30FPS, > + .vts_min = IMX258_VTS_30FPS, > + .reg_list = { > + .num_of_regs = ARRAY_SIZE(mode_4208x3118_regs), > + .regs = mode_4208x3118_regs, > + }, > + .link_freq_index = IMX258_LINK_FREQ_1267MBPS, > + }, > + { > + .width = 2104, > + .height = 1560, > + .vts_def = IMX258_VTS_30FPS_2K, > + .vts_min = IMX258_VTS_30FPS_2K, > + .reg_list = { > + .num_of_regs = ARRAY_SIZE(mode_2104_1560_regs), > + .regs = mode_2104_1560_regs, > + }, > + .link_freq_index = IMX258_LINK_FREQ_640MBPS, > + }, > + { > + .width = 1048, > + .height = 780, > + .vts_def = IMX258_VTS_30FPS_VGA, > + .vts_min = IMX258_VTS_30FPS_VGA, > + .reg_list = { > + .num_of_regs = ARRAY_SIZE(mode_1048_780_regs), > + .regs = mode_1048_780_regs, > + }, > + .link_freq_index = IMX258_LINK_FREQ_640MBPS, > + }, > +}; > + > +struct imx258 { > + struct v4l2_subdev sd; > + struct media_pad pad; > + > + struct v4l2_ctrl_handler ctrl_handler; > + /* V4L2 Controls */ > + struct v4l2_ctrl *link_freq; > + struct v4l2_ctrl *pixel_rate; > + struct v4l2_ctrl *vblank; > + struct v4l2_ctrl *hblank; > + struct v4l2_ctrl *exposure; > + > + /* Current mode */ > + const struct imx258_mode *cur_mode; > + > + /* > + * Mutex for serialized access: > + * Protect sensor module set pad format and start/stop streaming safely. > + */ > + struct mutex mutex; > + > + /* Streaming on/off */ > + bool streaming; > +}; > + > +static inline struct imx258 *to_imx258(struct v4l2_subdev *_sd) > +{ > + return container_of(_sd, struct imx258, sd); > +} > + > +/* Read registers up to 2 at a time */ The number 2 should be 4 according to the implementation below? > +static int imx258_read_reg(struct imx258 *imx258, u16 reg, u32 len, u32 *val) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + struct i2c_msg msgs[2]; > + u8 addr_buf[2] = { reg >> 8, reg & 0xff }; > + u8 data_buf[4] = { 0, }; > + int ret; > + > + if (len > 4) > + return -EINVAL; > + > + /* Write register address */ > + msgs[0].addr = client->addr; > + msgs[0].flags = 0; > + msgs[0].len = ARRAY_SIZE(addr_buf); > + msgs[0].buf = addr_buf; > + > + /* Read data from register */ > + msgs[1].addr = client->addr; > + msgs[1].flags = I2C_M_RD; > + msgs[1].len = len; > + msgs[1].buf = &data_buf[4 - len]; > + > + ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); > + if (ret != ARRAY_SIZE(msgs)) > + return -EIO; > + > + *val = get_unaligned_be32(data_buf); > + > + return 0; > +} > + > +/* Write registers up to 2 at a time */ Ditto. > +static int imx258_write_reg(struct imx258 *imx258, u16 reg, u32 len, u32 val) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + u8 buf[6]; > + > + if (len > 4) > + return -EINVAL; > + > + put_unaligned_be16(reg, buf); > + put_unaligned_be32(val << (8 * (4 - len)), buf + 2); > + if (i2c_master_send(client, buf, len + 2) != len + 2) > + return -EIO; > + > + return 0; > +} > + > +/* Write a list of registers */ > +static int imx258_write_regs(struct imx258 *imx258, > + const struct imx258_reg *regs, u32 len) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + unsigned int i; > + int ret; > + > + for (i = 0; i < len; i++) { > + ret = imx258_write_reg(imx258, regs[i].address, 1, > + regs[i].val); > + if (ret) { > + dev_err_ratelimited( > + &client->dev, > + "Failed to write reg 0x%4.4x. error = %d\n", > + regs[i].address, ret); > + > + return ret; > + } > + } > + > + return 0; > +} > + > +/* Open sub-device */ > +static int imx258_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) > +{ > + struct v4l2_mbus_framefmt *try_fmt = > + v4l2_subdev_get_try_format(sd, fh->pad, 0); > + > + /* Initialize try_fmt */ > + try_fmt->width = supported_modes[0].width; > + try_fmt->height = supported_modes[0].height; > + try_fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10; > + try_fmt->field = V4L2_FIELD_NONE; > + > + return 0; > +} > + > +static int imx258_update_digital_gain(struct imx258 *imx258, u32 len, u32 val) > +{ > + int ret; > + > + ret = imx258_write_reg(imx258, IMX258_REG_GR_DIGITAL_GAIN, > + IMX258_REG_VALUE_16BIT, > + val); > + if (ret) > + return ret; > + ret = imx258_write_reg(imx258, IMX258_REG_GB_DIGITAL_GAIN, > + IMX258_REG_VALUE_16BIT, > + val); > + if (ret) > + return ret; > + ret = imx258_write_reg(imx258, IMX258_REG_R_DIGITAL_GAIN, > + IMX258_REG_VALUE_16BIT, > + val); > + if (ret) > + return ret; > + ret = imx258_write_reg(imx258, IMX258_REG_B_DIGITAL_GAIN, > + IMX258_REG_VALUE_16BIT, > + val); > + if (ret) > + return ret; > + return 0; > +} > + > +static int imx258_set_ctrl(struct v4l2_ctrl *ctrl) > +{ > + struct imx258 *imx258 = > + container_of(ctrl->handler, struct imx258, ctrl_handler); > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + int ret = 0; > + > + /* > + * Applying V4L2 control value only happens > + * when power is up for streaming > + */ > + if (pm_runtime_get_if_in_use(&client->dev) == 0) > + return 0; > + > + switch (ctrl->id) { > + case V4L2_CID_ANALOGUE_GAIN: > + ret = imx258_write_reg(imx258, IMX258_REG_ANALOG_GAIN, > + IMX258_REG_VALUE_16BIT, > + ctrl->val); > + break; > + case V4L2_CID_EXPOSURE: > + ret = imx258_write_reg(imx258, IMX258_REG_EXPOSURE, > + IMX258_REG_VALUE_16BIT, > + ctrl->val); > + break; > + case V4L2_CID_DIGITAL_GAIN: > + ret = imx258_update_digital_gain(imx258, IMX258_REG_VALUE_16BIT, > + ctrl->val); > + break; > + case V4L2_CID_TEST_PATTERN: > + ret = imx258_write_reg(imx258, IMX258_REG_TEST_PATTERN, > + IMX258_REG_VALUE_16BIT, > + imx258_test_pattern_val[ctrl->val]); > + > + ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL, > + IMX258_REG_VALUE_08BIT, > + ctrl->val == imx258_test_pattern_val > + [IMX258_TEST_PATTERN_DISABLE] ? > + REG_CONFIG_MIRROR_FLIP : > + REG_CONFIG_FLIP_TEST_PATTERN); > + break; > + default: > + dev_info(&client->dev, > + "ctrl(id:0x%x,val:0x%x) is not handled\n", > + ctrl->id, ctrl->val); > + ret = -EINVAL; > + break; > + } > + > + pm_runtime_put(&client->dev); > + > + return ret; > +} > + > +static const struct v4l2_ctrl_ops imx258_ctrl_ops = { > + .s_ctrl = imx258_set_ctrl, > +}; > + > +static int imx258_enum_mbus_code(struct v4l2_subdev *sd, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_subdev_mbus_code_enum *code) > +{ > + /* Only one bayer order(GRBG) is supported */ > + if (code->index > 0) > + return -EINVAL; > + > + code->code = MEDIA_BUS_FMT_SGRBG10_1X10; > + > + return 0; > +} > + > +static int imx258_enum_frame_size(struct v4l2_subdev *sd, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_subdev_frame_size_enum *fse) > +{ > + if (fse->index >= ARRAY_SIZE(supported_modes)) > + return -EINVAL; > + > + if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10) > + return -EINVAL; > + > + fse->min_width = supported_modes[fse->index].width; > + fse->max_width = fse->min_width; > + fse->min_height = supported_modes[fse->index].height; > + fse->max_height = fse->min_height; > + > + return 0; > +} > + > +static void imx258_update_pad_format(const struct imx258_mode *mode, > + struct v4l2_subdev_format *fmt) > +{ > + fmt->format.width = mode->width; > + fmt->format.height = mode->height; > + fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10; > + fmt->format.field = V4L2_FIELD_NONE; > +} > + > +static int __imx258_get_pad_format(struct imx258 *imx258, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_subdev_format *fmt) > +{ > + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) > + fmt->format = *v4l2_subdev_get_try_format(&imx258->sd, cfg, > + fmt->pad); > + else > + imx258_update_pad_format(imx258->cur_mode, fmt); > + > + return 0; > +} > + > +static int imx258_get_pad_format(struct v4l2_subdev *sd, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_subdev_format *fmt) > +{ > + struct imx258 *imx258 = to_imx258(sd); > + int ret; > + > + mutex_lock(&imx258->mutex); > + ret = __imx258_get_pad_format(imx258, cfg, fmt); > + mutex_unlock(&imx258->mutex); > + > + return ret; > +} > + > +static int imx258_set_pad_format(struct v4l2_subdev *sd, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_subdev_format *fmt) > +{ > + struct imx258 *imx258 = to_imx258(sd); > + const struct imx258_mode *mode; > + struct v4l2_mbus_framefmt *framefmt; > + s32 vblank_def; > + s32 vblank_min; > + s64 h_blank; > + s64 pixel_rate; > + s64 link_freq; > + > + mutex_lock(&imx258->mutex); > + > + /* Only one raw bayer(GBRG) order is supported */ > + fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10; > + > + mode = v4l2_find_nearest_size(supported_modes, > + ARRAY_SIZE(supported_modes), width, height, > + fmt->format.width, fmt->format.height); > + imx258_update_pad_format(mode, fmt); > + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { > + framefmt = v4l2_subdev_get_try_format(sd, cfg, fmt->pad); > + *framefmt = fmt->format; > + } else { > + imx258->cur_mode = mode; > + __v4l2_ctrl_s_ctrl(imx258->link_freq, mode->link_freq_index); > + > + link_freq = link_freq_menu_items[mode->link_freq_index]; > + pixel_rate = link_freq_to_pixel_rate(link_freq); > + __v4l2_ctrl_s_ctrl_int64(imx258->pixel_rate, pixel_rate); > + /* Update limits and set FPS to default */ > + vblank_def = imx258->cur_mode->vts_def - > + imx258->cur_mode->height; > + vblank_min = imx258->cur_mode->vts_min - > + imx258->cur_mode->height; > + __v4l2_ctrl_modify_range( > + imx258->vblank, vblank_min, > + IMX258_VTS_MAX - imx258->cur_mode->height, 1, > + vblank_def); > + __v4l2_ctrl_s_ctrl(imx258->vblank, vblank_def); > + h_blank = > + link_freq_configs[mode->link_freq_index].pixels_per_line > + - imx258->cur_mode->width; > + __v4l2_ctrl_modify_range(imx258->hblank, h_blank, > + h_blank, 1, h_blank); > + } > + > + mutex_unlock(&imx258->mutex); > + > + return 0; > +} > + > +/* Start streaming */ > +static int imx258_start_streaming(struct imx258 *imx258) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + const struct imx258_reg_list *reg_list; > + int ret, link_freq_index; > + > + /* Setup PLL */ > + link_freq_index = imx258->cur_mode->link_freq_index; > + reg_list = &link_freq_configs[link_freq_index].reg_list; > + ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs); > + if (ret) { > + dev_err(&client->dev, "%s failed to set plls\n", __func__); > + return ret; > + } > + > + /* Apply default values of current mode */ > + reg_list = &imx258->cur_mode->reg_list; > + ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs); > + if (ret) { > + dev_err(&client->dev, "%s failed to set mode\n", __func__); > + return ret; > + } > + > + /* Set Orientation be 180 degree */ > + ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL, > + IMX258_REG_VALUE_08BIT, REG_CONFIG_MIRROR_FLIP); > + if (ret) { > + dev_err(&client->dev, "%s failed to set orientation\n", > + __func__); > + return ret; > + } > + > + /* Apply customized values from user */ > + ret = __v4l2_ctrl_handler_setup(imx258->sd.ctrl_handler); > + if (ret) > + return ret; > + > + /* set stream on register */ > + return imx258_write_reg(imx258, IMX258_REG_MODE_SELECT, > + IMX258_REG_VALUE_08BIT, > + IMX258_MODE_STREAMING); > +} > + > +/* Stop streaming */ > +static int imx258_stop_streaming(struct imx258 *imx258) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + int ret; > + > + /* set stream off register */ > + ret = imx258_write_reg(imx258, IMX258_REG_MODE_SELECT, > + IMX258_REG_VALUE_08BIT, IMX258_MODE_STANDBY); > + if (ret) > + dev_err(&client->dev, "%s failed to set stream\n", __func__); > + > + /* > + * Return success even if it was an error, as there is nothing the > + * caller can do about it. > + */ > + return 0; > +} > + > +static int imx258_set_stream(struct v4l2_subdev *sd, int enable) > +{ > + struct imx258 *imx258 = to_imx258(sd); > + struct i2c_client *client = v4l2_get_subdevdata(sd); > + int ret = 0; > + > + mutex_lock(&imx258->mutex); > + if (imx258->streaming == enable) { > + mutex_unlock(&imx258->mutex); > + return 0; > + } > + > + if (enable) { > + ret = pm_runtime_get_sync(&client->dev); > + if (ret < 0) { > + pm_runtime_put_noidle(&client->dev); > + goto err_unlock; > + } > + > + /* > + * Apply default & customized values > + * and then start streaming. > + */ > + ret = imx258_start_streaming(imx258); > + if (ret) > + goto err_rpm_put; > + } else { > + imx258_stop_streaming(imx258); > + pm_runtime_put(&client->dev); > + } > + > + imx258->streaming = enable; > + mutex_unlock(&imx258->mutex); > + > + return ret; > + > +err_rpm_put: > + pm_runtime_put(&client->dev); > +err_unlock: > + mutex_unlock(&imx258->mutex); > + > + return ret; > +} > + > +static int __maybe_unused imx258_suspend(struct device *dev) > +{ > + struct i2c_client *client = to_i2c_client(dev); > + struct v4l2_subdev *sd = i2c_get_clientdata(client); > + struct imx258 *imx258 = to_imx258(sd); > + > + if (imx258->streaming) > + imx258_stop_streaming(imx258); > + > + return 0; > +} > + > +static int __maybe_unused imx258_resume(struct device *dev) > +{ > + struct i2c_client *client = to_i2c_client(dev); > + struct v4l2_subdev *sd = i2c_get_clientdata(client); > + struct imx258 *imx258 = to_imx258(sd); > + int ret; > + > + if (imx258->streaming) { > + ret = imx258_start_streaming(imx258); > + if (ret) > + goto error; > + } > + > + return 0; > + > +error: > + imx258_stop_streaming(imx258); > + imx258->streaming = 0; > + return ret; > +} > + > +/* Verify chip ID */ > +static int imx258_identify_module(struct imx258 *imx258) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + int ret; > + u32 val; > + > + ret = imx258_read_reg(imx258, IMX258_REG_CHIP_ID, > + IMX258_REG_VALUE_16BIT, &val); > + if (ret) { > + dev_err(&client->dev, "failed to read chip id %x\n", > + IMX258_CHIP_ID); > + return ret; > + } > + > + if (val != IMX258_CHIP_ID) { > + dev_err(&client->dev, "chip id mismatch: %x!=%x\n", > + IMX258_CHIP_ID, val); > + return -EIO; > + } > + > + return 0; > +} > + > +static const struct v4l2_subdev_video_ops imx258_video_ops = { > + .s_stream = imx258_set_stream, > +}; > + > +static const struct v4l2_subdev_pad_ops imx258_pad_ops = { > + .enum_mbus_code = imx258_enum_mbus_code, > + .get_fmt = imx258_get_pad_format, > + .set_fmt = imx258_set_pad_format, > + .enum_frame_size = imx258_enum_frame_size, > +}; > + > +static const struct v4l2_subdev_ops imx258_subdev_ops = { > + .video = &imx258_video_ops, > + .pad = &imx258_pad_ops, > +}; > + > +static const struct v4l2_subdev_internal_ops imx258_internal_ops = { > + .open = imx258_open, > +}; > + > +/* Initialize control handlers */ > +static int imx258_init_controls(struct imx258 *imx258) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + struct v4l2_ctrl_handler *ctrl_hdlr; > + s64 exposure_max; > + s64 vblank_def; > + s64 vblank_min; > + s64 pixel_rate_min; > + s64 pixel_rate_max; > + int ret; > + > + ctrl_hdlr = &imx258->ctrl_handler; > + ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8); > + if (ret) > + return ret; > + > + mutex_init(&imx258->mutex); > + ctrl_hdlr->lock = &imx258->mutex; > + imx258->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr, > + &imx258_ctrl_ops, > + V4L2_CID_LINK_FREQ, > + ARRAY_SIZE(link_freq_menu_items) - 1, > + 0, > + link_freq_menu_items); > + > + if (imx258->link_freq) > + imx258->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; > + > + pixel_rate_max = link_freq_to_pixel_rate(link_freq_menu_items[0]); > + pixel_rate_min = link_freq_to_pixel_rate(link_freq_menu_items[1]); > + /* By default, PIXEL_RATE is read only */ > + imx258->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, > + V4L2_CID_PIXEL_RATE, > + pixel_rate_min, pixel_rate_max, > + 1, pixel_rate_max); > + > + > + vblank_def = imx258->cur_mode->vts_def - imx258->cur_mode->height; > + vblank_min = imx258->cur_mode->vts_min - imx258->cur_mode->height; > + imx258->vblank = v4l2_ctrl_new_std( > + ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_VBLANK, > + vblank_min, > + IMX258_VTS_MAX - imx258->cur_mode->height, 1, > + vblank_def); > + > + if (imx258->vblank) > + imx258->vblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; > + > + imx258->hblank = v4l2_ctrl_new_std( > + ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_HBLANK, > + IMX258_PPL_DEFAULT - imx258->cur_mode->width, > + IMX258_PPL_DEFAULT - imx258->cur_mode->width, > + 1, > + IMX258_PPL_DEFAULT - imx258->cur_mode->width); > + > + if (imx258->hblank) > + imx258->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; > + > + exposure_max = imx258->cur_mode->vts_def - 8; > + imx258->exposure = v4l2_ctrl_new_std( > + ctrl_hdlr, &imx258_ctrl_ops, > + V4L2_CID_EXPOSURE, IMX258_EXPOSURE_MIN, > + IMX258_EXPOSURE_MAX, IMX258_EXPOSURE_STEP, > + IMX258_EXPOSURE_DEFAULT); > + > + v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, > + IMX258_ANA_GAIN_MIN, IMX258_ANA_GAIN_MAX, > + IMX258_ANA_GAIN_STEP, IMX258_ANA_GAIN_DEFAULT); > + > + v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_DIGITAL_GAIN, > + IMX258_DGTL_GAIN_MIN, IMX258_DGTL_GAIN_MAX, > + IMX258_DGTL_GAIN_STEP, > + IMX258_DGTL_GAIN_DEFAULT); > + > + v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &imx258_ctrl_ops, > + V4L2_CID_TEST_PATTERN, > + ARRAY_SIZE(imx258_test_pattern_menu) - 1, > + 0, 0, imx258_test_pattern_menu); > + > + if (ctrl_hdlr->error) { > + ret = ctrl_hdlr->error; > + dev_err(&client->dev, "%s control init failed (%d)\n", > + __func__, ret); > + goto error; > + } > + > + imx258->sd.ctrl_handler = ctrl_hdlr; > + > + return 0; > + > +error: > + v4l2_ctrl_handler_free(ctrl_hdlr); > + mutex_destroy(&imx258->mutex); > + > + return ret; > +} > + > +static void imx258_free_controls(struct imx258 *imx258) > +{ > + v4l2_ctrl_handler_free(imx258->sd.ctrl_handler); > + mutex_destroy(&imx258->mutex); > +} > + > +static int imx258_probe(struct i2c_client *client) > +{ > + struct imx258 *imx258; > + int ret; > + u32 val = 0; > + > + device_property_read_u32(&client->dev, "clock-frequency", &val); > + if (val != 19200000) > + return -EINVAL; > + > + imx258 = devm_kzalloc(&client->dev, sizeof(*imx258), GFP_KERNEL); > + if (!imx258) > + return -ENOMEM; > + > + /* Initialize subdev */ > + v4l2_i2c_subdev_init(&imx258->sd, client, &imx258_subdev_ops); > + > + /* Check module identity */ > + ret = imx258_identify_module(imx258); > + if (ret) > + return ret; > + > + /* Set default mode to max resolution */ > + imx258->cur_mode = &supported_modes[0]; > + > + ret = imx258_init_controls(imx258); > + if (ret) > + return ret; > + > + /* Initialize subdev */ > + imx258->sd.internal_ops = &imx258_internal_ops; > + imx258->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; > + imx258->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; > + > + /* Initialize source pad */ > + imx258->pad.flags = MEDIA_PAD_FL_SOURCE; > + > + ret = media_entity_pads_init(&imx258->sd.entity, 1, &imx258->pad); > + if (ret) { > + goto error_handler_free; > + } > + > + ret = v4l2_async_register_subdev_sensor_common(&imx258->sd); > + if (ret < 0) > + goto error_media_entity; > + > + pm_runtime_set_active(&client->dev); > + pm_runtime_enable(&client->dev); > + pm_runtime_idle(&client->dev); > + > + return 0; > + > +error_media_entity: > + media_entity_cleanup(&imx258->sd.entity); > + > +error_handler_free: > + imx258_free_controls(imx258); > + > + return ret; > +} > + > +static int imx258_remove(struct i2c_client *client) > +{ > + struct v4l2_subdev *sd = i2c_get_clientdata(client); > + struct imx258 *imx258 = to_imx258(sd); > + > + v4l2_async_unregister_subdev(sd); > + media_entity_cleanup(&sd->entity); > + imx258_free_controls(imx258); > + > + pm_runtime_disable(&client->dev); > + pm_runtime_set_suspended(&client->dev); > + > + return 0; > +} > + > +static const struct dev_pm_ops imx258_pm_ops = { > + SET_SYSTEM_SLEEP_PM_OPS(imx258_suspend, imx258_resume) > +}; > + > +#ifdef CONFIG_ACPI > +static const struct acpi_device_id imx258_acpi_ids[] = { > + { "SONY258A" }, > + { /* sentinel */ } > +}; > + > +MODULE_DEVICE_TABLE(acpi, imx258_acpi_ids); > +#endif > + > +static struct i2c_driver imx258_i2c_driver = { > + .driver = { > + .name = "imx258", > + .pm = &imx258_pm_ops, > + .acpi_match_table = ACPI_PTR(imx258_acpi_ids), > + }, > + .probe_new = imx258_probe, > + .remove = imx258_remove, > +}; > + > +module_i2c_driver(imx258_i2c_driver); > + > +MODULE_AUTHOR("Yeh, Andy <andy.yeh@intel.com>"); > +MODULE_AUTHOR("Chiang, Alan <alanx.chiang@intel.com>"); > +MODULE_AUTHOR("Chen, Jason <jasonx.z.chen@intel.com>"); > +MODULE_DESCRIPTION("Sony IMX258 sensor driver"); > +MODULE_LICENSE("GPL v2"); > -- > 2.7.4 >
Hi Tomasz, > -----Original Message----- > From: linux-media-owner@vger.kernel.org [mailto:linux-media- > owner@vger.kernel.org] On Behalf Of Tomasz Figa > Sent: Wednesday, May 9, 2018 6:05 PM > To: Chen, JasonX Z <jasonx.z.chen@intel.com> > Cc: Yeh, Andy <andy.yeh@intel.com>; Linux Media Mailing List <linux- > media@vger.kernel.org>; Sakari Ailus <sakari.ailus@linux.intel.com>; Chiang, > AlanX <alanx.chiang@intel.com> > Subject: Re: [PATCH v11] media: imx258: Add imx258 camera sensor driver > > Hi Jason, > > > IPU3 HAL has a handler to bind test_pattern mode. > > The COLOR BAR MODE in HAL has been configured to 1 when APP requests > > to > output color bar image. > > However Sony sensor's COLOR BAR MODE is designed as 2 in register table. > (grey color bars as 1). > > When HAL sends handler to driver to switch test pattern mode (to COLOR > BAR - val: 1), it will be grey color, since driver still set TEST_PATTERN_MODE > reg value to 1, those it is not what we expected. > > > That is why we have to make an array with index to arrange the order > > of > the test pattern items, so driver will choose COLOR BAR correctly when HAL > send test_pattern message (with 1). > > The concept is the test_pattern_menu could be listed in driver per > > real > requirement, no matter how the sensor register is designed. > > > V4L2 specification does not define any particular order of menu entries in > V4L2_CID_TEST_PATTERN. The application should query the strings in the > menu and determine the option it needs based on that. If it hardcodes > particular index, it's a bug. Is there any reason that there is no certain macro define for different type of test pattern in v4l2? So App will not depend on any strings where could be different on different sensor drivers. > > Thanks. > > Best regards, > Tomasz
On Thu, May 10, 2018 at 3:56 PM Zheng, Jian Xu <jian.xu.zheng@intel.com> wrote: > Hi Tomasz, > > -----Original Message----- > > From: linux-media-owner@vger.kernel.org [mailto:linux-media- > > owner@vger.kernel.org] On Behalf Of Tomasz Figa > > Sent: Wednesday, May 9, 2018 6:05 PM > > To: Chen, JasonX Z <jasonx.z.chen@intel.com> > > Cc: Yeh, Andy <andy.yeh@intel.com>; Linux Media Mailing List <linux- > > media@vger.kernel.org>; Sakari Ailus <sakari.ailus@linux.intel.com>; Chiang, > > AlanX <alanx.chiang@intel.com> > > Subject: Re: [PATCH v11] media: imx258: Add imx258 camera sensor driver > > > > Hi Jason, > > > > > IPU3 HAL has a handler to bind test_pattern mode. > > > The COLOR BAR MODE in HAL has been configured to 1 when APP requests > > > to > > output color bar image. > > > However Sony sensor's COLOR BAR MODE is designed as 2 in register table. > > (grey color bars as 1). > > > When HAL sends handler to driver to switch test pattern mode (to COLOR > > BAR - val: 1), it will be grey color, since driver still set TEST_PATTERN_MODE > > reg value to 1, those it is not what we expected. > > > > > That is why we have to make an array with index to arrange the order > > > of > > the test pattern items, so driver will choose COLOR BAR correctly when HAL > > send test_pattern message (with 1). > > > The concept is the test_pattern_menu could be listed in driver per > > > real > > requirement, no matter how the sensor register is designed. > > > > > > V4L2 specification does not define any particular order of menu entries in > > V4L2_CID_TEST_PATTERN. The application should query the strings in the > > menu and determine the option it needs based on that. If it hardcodes > > particular index, it's a bug. > Is there any reason that there is no certain macro define for different type of test pattern in v4l2? > So App will not depend on any strings where could be different on different sensor drivers. Yes. Available patterns differ significantly between one sensor and another, so the menu positions are considered hardware-specific. Best regards, Tomasz
Hi Tomasz, -----Original Message----- From: Tomasz Figa [mailto:tfiga@chromium.org] Sent: Thursday, May 10, 2018 3:04 PM To: Zheng, Jian Xu <jian.xu.zheng@intel.com> Cc: Chen, JasonX Z <jasonx.z.chen@intel.com>; Yeh, Andy <andy.yeh@intel.com>; Linux Media Mailing List <linux-media@vger.kernel.org>; Sakari Ailus <sakari.ailus@linux.intel.com>; Chiang, AlanX <alanx.chiang@intel.com> Subject: Re: [PATCH v11] media: imx258: Add imx258 camera sensor driver On Thu, May 10, 2018 at 3:56 PM Zheng, Jian Xu <jian.xu.zheng@intel.com> wrote: > Hi Tomasz, > > -----Original Message----- > > From: linux-media-owner@vger.kernel.org [mailto:linux-media- > > owner@vger.kernel.org] On Behalf Of Tomasz Figa > > Sent: Wednesday, May 9, 2018 6:05 PM > > To: Chen, JasonX Z <jasonx.z.chen@intel.com> > > Cc: Yeh, Andy <andy.yeh@intel.com>; Linux Media Mailing List <linux- > > media@vger.kernel.org>; Sakari Ailus <sakari.ailus@linux.intel.com>; Chiang, > > AlanX <alanx.chiang@intel.com> > > Subject: Re: [PATCH v11] media: imx258: Add imx258 camera sensor > > driver > > > > Hi Jason, > > > > > IPU3 HAL has a handler to bind test_pattern mode. > > > The COLOR BAR MODE in HAL has been configured to 1 when APP > > > requests to > > output color bar image. > > > However Sony sensor's COLOR BAR MODE is designed as 2 in register table. > > (grey color bars as 1). > > > When HAL sends handler to driver to switch test pattern mode (to > > > COLOR > > BAR - val: 1), it will be grey color, since driver still set TEST_PATTERN_MODE > > reg value to 1, those it is not what we expected. > > > > > That is why we have to make an array with index to arrange the > > > order of > > the test pattern items, so driver will choose COLOR BAR correctly > > when HAL > > send test_pattern message (with 1). > > > The concept is the test_pattern_menu could be listed in driver per > > > real > > requirement, no matter how the sensor register is designed. > > > > > > V4L2 specification does not define any particular order of menu > > entries in > > V4L2_CID_TEST_PATTERN. The application should query the strings in > > the menu and determine the option it needs based on that. If it > > hardcodes particular index, it's a bug. > Is there any reason that there is no certain macro define for > different type of test pattern in v4l2? > So App will not depend on any strings where could be different on different sensor drivers. > Yes. Available patterns differ significantly between one sensor and another, so the menu positions are considered hardware-specific. In current design, application can still query the available patterns and select per their needs. Although the menu position doesn't exactly the same as the datasheet, it still complies with the V4L2 rule. Because it will not introduce bug for any application, we think it is a feasible approach. Best regards, Tomasz
On Thu, May 10, 2018 at 5:33 PM Yeh, Andy <andy.yeh@intel.com> wrote: > Hi Tomasz, > -----Original Message----- > From: Tomasz Figa [mailto:tfiga@chromium.org] > Sent: Thursday, May 10, 2018 3:04 PM > To: Zheng, Jian Xu <jian.xu.zheng@intel.com> > Cc: Chen, JasonX Z <jasonx.z.chen@intel.com>; Yeh, Andy < andy.yeh@intel.com>; Linux Media Mailing List <linux-media@vger.kernel.org>; Sakari Ailus <sakari.ailus@linux.intel.com>; Chiang, AlanX < alanx.chiang@intel.com> > Subject: Re: [PATCH v11] media: imx258: Add imx258 camera sensor driver > On Thu, May 10, 2018 at 3:56 PM Zheng, Jian Xu <jian.xu.zheng@intel.com> > wrote: > > Hi Tomasz, > > > -----Original Message----- > > > From: linux-media-owner@vger.kernel.org [mailto:linux-media- > > > owner@vger.kernel.org] On Behalf Of Tomasz Figa > > > Sent: Wednesday, May 9, 2018 6:05 PM > > > To: Chen, JasonX Z <jasonx.z.chen@intel.com> > > > Cc: Yeh, Andy <andy.yeh@intel.com>; Linux Media Mailing List <linux- > > > media@vger.kernel.org>; Sakari Ailus <sakari.ailus@linux.intel.com>; > Chiang, > > > AlanX <alanx.chiang@intel.com> > > > Subject: Re: [PATCH v11] media: imx258: Add imx258 camera sensor > > > driver > > > > > > Hi Jason, > > > > > > > IPU3 HAL has a handler to bind test_pattern mode. > > > > The COLOR BAR MODE in HAL has been configured to 1 when APP > > > > requests to > > > output color bar image. > > > > However Sony sensor's COLOR BAR MODE is designed as 2 in register > table. > > > (grey color bars as 1). > > > > When HAL sends handler to driver to switch test pattern mode (to > > > > COLOR > > > BAR - val: 1), it will be grey color, since driver still set > TEST_PATTERN_MODE > > > reg value to 1, those it is not what we expected. > > > > > > > That is why we have to make an array with index to arrange the > > > > order of > > > the test pattern items, so driver will choose COLOR BAR correctly > > > when > HAL > > > send test_pattern message (with 1). > > > > The concept is the test_pattern_menu could be listed in driver per > > > > real > > > requirement, no matter how the sensor register is designed. > > > > > > > > > V4L2 specification does not define any particular order of menu > > > entries > in > > > V4L2_CID_TEST_PATTERN. The application should query the strings in > > > the menu and determine the option it needs based on that. If it > > > hardcodes particular index, it's a bug. > > Is there any reason that there is no certain macro define for > > different > type of test pattern in v4l2? > > So App will not depend on any strings where could be different on > different sensor drivers. > > Yes. Available patterns differ significantly between one sensor and another, so the menu positions are considered hardware-specific. > In current design, application can still query the available patterns and select per their needs. Although the menu position doesn't exactly the same as the datasheet, it still complies with the V4L2 rule. Because it will not introduce bug for any application, we think it is a feasible approach. I tend to disagree. When we add another sensor that has a different subset of test patterns, HAL will break. Please fix it. We can't rely on behavior that is not guaranteed. Best regards, Tomasz
Hi Tomasz, > -----Original Message----- > From: linux-media-owner@vger.kernel.org [mailto:linux-media- > owner@vger.kernel.org] On Behalf Of Tomasz Figa > Sent: Thursday, May 10, 2018 3:04 PM > To: Zheng, Jian Xu <jian.xu.zheng@intel.com> > Cc: Chen, JasonX Z <jasonx.z.chen@intel.com>; Yeh, Andy > <andy.yeh@intel.com>; Linux Media Mailing List <linux- > media@vger.kernel.org>; Sakari Ailus <sakari.ailus@linux.intel.com>; Chiang, > AlanX <alanx.chiang@intel.com> > Subject: Re: [PATCH v11] media: imx258: Add imx258 camera sensor driver > > On Thu, May 10, 2018 at 3:56 PM Zheng, Jian Xu <jian.xu.zheng@intel.com> > wrote: > > > Hi Tomasz, > > > > -----Original Message----- > > > From: linux-media-owner@vger.kernel.org [mailto:linux-media- > > > owner@vger.kernel.org] On Behalf Of Tomasz Figa > > > Sent: Wednesday, May 9, 2018 6:05 PM > > > To: Chen, JasonX Z <jasonx.z.chen@intel.com> > > > Cc: Yeh, Andy <andy.yeh@intel.com>; Linux Media Mailing List <linux- > > > media@vger.kernel.org>; Sakari Ailus <sakari.ailus@linux.intel.com>; > Chiang, > > > AlanX <alanx.chiang@intel.com> > > > Subject: Re: [PATCH v11] media: imx258: Add imx258 camera sensor > > > driver > > > > > > Hi Jason, > > > > > > > IPU3 HAL has a handler to bind test_pattern mode. > > > > The COLOR BAR MODE in HAL has been configured to 1 when APP > > > > requests to > > > output color bar image. > > > > However Sony sensor's COLOR BAR MODE is designed as 2 in register > table. > > > (grey color bars as 1). > > > > When HAL sends handler to driver to switch test pattern mode (to > > > > COLOR > > > BAR - val: 1), it will be grey color, since driver still set > TEST_PATTERN_MODE > > > reg value to 1, those it is not what we expected. > > > > > > > That is why we have to make an array with index to arrange the > > > > order of > > > the test pattern items, so driver will choose COLOR BAR correctly > > > when > HAL > > > send test_pattern message (with 1). > > > > The concept is the test_pattern_menu could be listed in driver per > > > > real > > > requirement, no matter how the sensor register is designed. > > > > > > > > > V4L2 specification does not define any particular order of menu > > > entries > in > > > V4L2_CID_TEST_PATTERN. The application should query the strings in > > > the menu and determine the option it needs based on that. If it > > > hardcodes particular index, it's a bug. > > > Is there any reason that there is no certain macro define for > > different > type of test pattern in v4l2? > > So App will not depend on any strings where could be different on > different sensor drivers. > > Yes. Available patterns differ significantly between one sensor and another, > so the menu positions are considered hardware-specific. The problem is even App queries the strings in driver, it still doesn't look good enough. Because different driver may have different strings even for same type, Color Bar, for example. So it's the best v4l2 could have several standardize names for test pattern types. In this case App doesn't need to hard code test pattern strings for different sensors. Do you think it makes sense? Best Regards, Jianxu(Clive) Zheng
On Thu, May 10, 2018 at 6:11 PM Zheng, Jian Xu <jian.xu.zheng@intel.com> wrote: > Hi Tomasz, > > -----Original Message----- > > From: linux-media-owner@vger.kernel.org [mailto:linux-media- > > owner@vger.kernel.org] On Behalf Of Tomasz Figa > > Sent: Thursday, May 10, 2018 3:04 PM > > To: Zheng, Jian Xu <jian.xu.zheng@intel.com> > > Cc: Chen, JasonX Z <jasonx.z.chen@intel.com>; Yeh, Andy > > <andy.yeh@intel.com>; Linux Media Mailing List <linux- > > media@vger.kernel.org>; Sakari Ailus <sakari.ailus@linux.intel.com>; Chiang, > > AlanX <alanx.chiang@intel.com> > > Subject: Re: [PATCH v11] media: imx258: Add imx258 camera sensor driver > > > > On Thu, May 10, 2018 at 3:56 PM Zheng, Jian Xu <jian.xu.zheng@intel.com> > > wrote: > > > > > Hi Tomasz, > > > > > > -----Original Message----- > > > > From: linux-media-owner@vger.kernel.org [mailto:linux-media- > > > > owner@vger.kernel.org] On Behalf Of Tomasz Figa > > > > Sent: Wednesday, May 9, 2018 6:05 PM > > > > To: Chen, JasonX Z <jasonx.z.chen@intel.com> > > > > Cc: Yeh, Andy <andy.yeh@intel.com>; Linux Media Mailing List <linux- > > > > media@vger.kernel.org>; Sakari Ailus <sakari.ailus@linux.intel.com>; > > Chiang, > > > > AlanX <alanx.chiang@intel.com> > > > > Subject: Re: [PATCH v11] media: imx258: Add imx258 camera sensor > > > > driver > > > > > > > > Hi Jason, > > > > > > > > > IPU3 HAL has a handler to bind test_pattern mode. > > > > > The COLOR BAR MODE in HAL has been configured to 1 when APP > > > > > requests to > > > > output color bar image. > > > > > However Sony sensor's COLOR BAR MODE is designed as 2 in register > > table. > > > > (grey color bars as 1). > > > > > When HAL sends handler to driver to switch test pattern mode (to > > > > > COLOR > > > > BAR - val: 1), it will be grey color, since driver still set > > TEST_PATTERN_MODE > > > > reg value to 1, those it is not what we expected. > > > > > > > > > That is why we have to make an array with index to arrange the > > > > > order of > > > > the test pattern items, so driver will choose COLOR BAR correctly > > > > when > > HAL > > > > send test_pattern message (with 1). > > > > > The concept is the test_pattern_menu could be listed in driver per > > > > > real > > > > requirement, no matter how the sensor register is designed. > > > > > > > > > > > > V4L2 specification does not define any particular order of menu > > > > entries > > in > > > > V4L2_CID_TEST_PATTERN. The application should query the strings in > > > > the menu and determine the option it needs based on that. If it > > > > hardcodes particular index, it's a bug. > > > > > Is there any reason that there is no certain macro define for > > > different > > type of test pattern in v4l2? > > > So App will not depend on any strings where could be different on > > different sensor drivers. > > > > Yes. Available patterns differ significantly between one sensor and another, > > so the menu positions are considered hardware-specific. > The problem is even App queries the strings in driver, it still doesn't look good enough. > Because different driver may have different strings even for same type, Color Bar, for example. > So it's the best v4l2 could have several standardize names for test pattern types. > In this case App doesn't need to hard code test pattern strings for different sensors. > Do you think it makes sense? It sounds quite sensible, assuming that we can find such standard subset. IMHO a much more scale-able solution would be to have the test pattern strings configurable per platform. Best regards, Tomasz
Hi Sakari & Jason, > -----Original Message----- > From: linux-media-owner@vger.kernel.org [mailto:linux-media- > owner@vger.kernel.org] On Behalf Of Sakari Ailus > Sent: Wednesday, May 9, 2018 5:43 PM > To: Chen, JasonX Z <jasonx.z.chen@intel.com> > Cc: Tomasz Figa <tfiga@chromium.org>; Yeh, Andy <andy.yeh@intel.com>; > Linux Media Mailing List <linux-media@vger.kernel.org>; Chiang, AlanX > <alanx.chiang@intel.com> > Subject: Re: [PATCH v11] media: imx258: Add imx258 camera sensor driver > > Hi Jason, > > On Wed, May 09, 2018 at 09:28:30AM +0000, Chen, JasonX Z wrote: > > Hello Tomasz > > > > >> +/* Test Pattern Control */ > > >> +#define IMX258_REG_TEST_PATTERN 0x0600 > > >> +#define IMX258_TEST_PATTERN_DISABLE 0 > > >> +#define IMX258_TEST_PATTERN_SOLID_COLOR 1 > > >> +#define IMX258_TEST_PATTERN_COLOR_BARS 2 #define > > >> +IMX258_TEST_PATTERN_GREY_COLOR 3 > > >> +#define IMX258_TEST_PATTERN_PN9 4 I suppose we only use IMX258_TEST_PATTERN_COLOR_BARS. I heard that we'd better remove the functions/code no one would use. Is that true? e.g. remove all h_flip and v_flip ioctls because it's not used by anyone. Best Regards, Jianxu(Clive) Zheng
On Thu, May 10, 2018 at 11:08:43AM +0000, Zheng, Jian Xu wrote: > Hi Sakari & Jason, > > > -----Original Message----- > > From: linux-media-owner@vger.kernel.org [mailto:linux-media- > > owner@vger.kernel.org] On Behalf Of Sakari Ailus > > Sent: Wednesday, May 9, 2018 5:43 PM > > To: Chen, JasonX Z <jasonx.z.chen@intel.com> > > Cc: Tomasz Figa <tfiga@chromium.org>; Yeh, Andy <andy.yeh@intel.com>; > > Linux Media Mailing List <linux-media@vger.kernel.org>; Chiang, AlanX > > <alanx.chiang@intel.com> > > Subject: Re: [PATCH v11] media: imx258: Add imx258 camera sensor driver > > > > Hi Jason, > > > > On Wed, May 09, 2018 at 09:28:30AM +0000, Chen, JasonX Z wrote: > > > Hello Tomasz > > > > > > >> +/* Test Pattern Control */ > > > >> +#define IMX258_REG_TEST_PATTERN 0x0600 > > > >> +#define IMX258_TEST_PATTERN_DISABLE 0 > > > >> +#define IMX258_TEST_PATTERN_SOLID_COLOR 1 > > > >> +#define IMX258_TEST_PATTERN_COLOR_BARS 2 #define > > > >> +IMX258_TEST_PATTERN_GREY_COLOR 3 > > > >> +#define IMX258_TEST_PATTERN_PN9 4 > > I suppose we only use IMX258_TEST_PATTERN_COLOR_BARS. I heard that we'd > better remove the functions/code no one would use. Is that true? e.g. > remove all h_flip and v_flip ioctls because it's not used by anyone. HFLIP and VFLIP support were AFAIR removed as they were not supported correctly by the driver --- they do affect the pixel order, i.e. the format. I see no reason to remove support for the additional test patterns if the implementation is correct --- in this case, just a single integer value.
On Thu, May 10, 2018 at 09:15:31AM +0000, Tomasz Figa wrote: > On Thu, May 10, 2018 at 6:11 PM Zheng, Jian Xu <jian.xu.zheng@intel.com> > wrote: > > > Hi Tomasz, > > > > -----Original Message----- > > > From: linux-media-owner@vger.kernel.org [mailto:linux-media- > > > owner@vger.kernel.org] On Behalf Of Tomasz Figa > > > Sent: Thursday, May 10, 2018 3:04 PM > > > To: Zheng, Jian Xu <jian.xu.zheng@intel.com> > > > Cc: Chen, JasonX Z <jasonx.z.chen@intel.com>; Yeh, Andy > > > <andy.yeh@intel.com>; Linux Media Mailing List <linux- > > > media@vger.kernel.org>; Sakari Ailus <sakari.ailus@linux.intel.com>; > Chiang, > > > AlanX <alanx.chiang@intel.com> > > > Subject: Re: [PATCH v11] media: imx258: Add imx258 camera sensor driver > > > > > > On Thu, May 10, 2018 at 3:56 PM Zheng, Jian Xu <jian.xu.zheng@intel.com> > > > wrote: > > > > > > > Hi Tomasz, > > > > > > > > -----Original Message----- > > > > > From: linux-media-owner@vger.kernel.org [mailto:linux-media- > > > > > owner@vger.kernel.org] On Behalf Of Tomasz Figa > > > > > Sent: Wednesday, May 9, 2018 6:05 PM > > > > > To: Chen, JasonX Z <jasonx.z.chen@intel.com> > > > > > Cc: Yeh, Andy <andy.yeh@intel.com>; Linux Media Mailing List <linux- > > > > > media@vger.kernel.org>; Sakari Ailus <sakari.ailus@linux.intel.com>; > > > Chiang, > > > > > AlanX <alanx.chiang@intel.com> > > > > > Subject: Re: [PATCH v11] media: imx258: Add imx258 camera sensor > > > > > driver > > > > > > > > > > Hi Jason, > > > > > > > > > > > IPU3 HAL has a handler to bind test_pattern mode. > > > > > > The COLOR BAR MODE in HAL has been configured to 1 when APP > > > > > > requests to > > > > > output color bar image. > > > > > > However Sony sensor's COLOR BAR MODE is designed as 2 in register > > > table. > > > > > (grey color bars as 1). > > > > > > When HAL sends handler to driver to switch test pattern mode (to > > > > > > COLOR > > > > > BAR - val: 1), it will be grey color, since driver still set > > > TEST_PATTERN_MODE > > > > > reg value to 1, those it is not what we expected. > > > > > > > > > > > That is why we have to make an array with index to arrange the > > > > > > order of > > > > > the test pattern items, so driver will choose COLOR BAR correctly > > > > > when > > > HAL > > > > > send test_pattern message (with 1). > > > > > > The concept is the test_pattern_menu could be listed in driver per > > > > > > real > > > > > requirement, no matter how the sensor register is designed. > > > > > > > > > > > > > > > V4L2 specification does not define any particular order of menu > > > > > entries > > > in > > > > > V4L2_CID_TEST_PATTERN. The application should query the strings in > > > > > the menu and determine the option it needs based on that. If it > > > > > hardcodes particular index, it's a bug. > > > > > > > Is there any reason that there is no certain macro define for > > > > different > > > type of test pattern in v4l2? > > > > So App will not depend on any strings where could be different on > > > different sensor drivers. > > > > > > Yes. Available patterns differ significantly between one sensor and > another, > > > so the menu positions are considered hardware-specific. > > > The problem is even App queries the strings in driver, it still doesn't > look good enough. > > Because different driver may have different strings even for same type, > Color Bar, for example. > > So it's the best v4l2 could have several standardize names for test > pattern types. > > In this case App doesn't need to hard code test pattern strings for > different sensors. > > > Do you think it makes sense? > > It sounds quite sensible, assuming that we can find such standard subset. > > IMHO a much more scale-able solution would be to have the test pattern > strings configurable per platform. What do you mean by a platform here? I guess we could have standard names (as in strings you get through QUERYMENU) for certain test patterns. That'd be an improvement; then you'd be able to rely on these strings. This control doesn't have any standardised values as what's supported tends to be hardware specific. Cc Hans.
On Sat, May 12, 2018 at 9:52 PM Sakari Ailus <sakari.ailus@linux.intel.com> wrote: > On Thu, May 10, 2018 at 09:15:31AM +0000, Tomasz Figa wrote: > > On Thu, May 10, 2018 at 6:11 PM Zheng, Jian Xu <jian.xu.zheng@intel.com> > > wrote: > > > > > Hi Tomasz, > > > > > > -----Original Message----- > > > > From: linux-media-owner@vger.kernel.org [mailto:linux-media- > > > > owner@vger.kernel.org] On Behalf Of Tomasz Figa > > > > Sent: Thursday, May 10, 2018 3:04 PM > > > > To: Zheng, Jian Xu <jian.xu.zheng@intel.com> > > > > Cc: Chen, JasonX Z <jasonx.z.chen@intel.com>; Yeh, Andy > > > > <andy.yeh@intel.com>; Linux Media Mailing List <linux- > > > > media@vger.kernel.org>; Sakari Ailus <sakari.ailus@linux.intel.com>; > > Chiang, > > > > AlanX <alanx.chiang@intel.com> > > > > Subject: Re: [PATCH v11] media: imx258: Add imx258 camera sensor driver > > > > > > > > On Thu, May 10, 2018 at 3:56 PM Zheng, Jian Xu < jian.xu.zheng@intel.com> > > > > wrote: > > > > > > > > > Hi Tomasz, > > > > > > > > > > -----Original Message----- > > > > > > From: linux-media-owner@vger.kernel.org [mailto:linux-media- > > > > > > owner@vger.kernel.org] On Behalf Of Tomasz Figa > > > > > > Sent: Wednesday, May 9, 2018 6:05 PM > > > > > > To: Chen, JasonX Z <jasonx.z.chen@intel.com> > > > > > > Cc: Yeh, Andy <andy.yeh@intel.com>; Linux Media Mailing List <linux- > > > > > > media@vger.kernel.org>; Sakari Ailus < sakari.ailus@linux.intel.com>; > > > > Chiang, > > > > > > AlanX <alanx.chiang@intel.com> > > > > > > Subject: Re: [PATCH v11] media: imx258: Add imx258 camera sensor > > > > > > driver > > > > > > > > > > > > Hi Jason, > > > > > > > > > > > > > IPU3 HAL has a handler to bind test_pattern mode. > > > > > > > The COLOR BAR MODE in HAL has been configured to 1 when APP > > > > > > > requests to > > > > > > output color bar image. > > > > > > > However Sony sensor's COLOR BAR MODE is designed as 2 in register > > > > table. > > > > > > (grey color bars as 1). > > > > > > > When HAL sends handler to driver to switch test pattern mode (to > > > > > > > COLOR > > > > > > BAR - val: 1), it will be grey color, since driver still set > > > > TEST_PATTERN_MODE > > > > > > reg value to 1, those it is not what we expected. > > > > > > > > > > > > > That is why we have to make an array with index to arrange the > > > > > > > order of > > > > > > the test pattern items, so driver will choose COLOR BAR correctly > > > > > > when > > > > HAL > > > > > > send test_pattern message (with 1). > > > > > > > The concept is the test_pattern_menu could be listed in driver per > > > > > > > real > > > > > > requirement, no matter how the sensor register is designed. > > > > > > > > > > > > > > > > > > V4L2 specification does not define any particular order of menu > > > > > > entries > > > > in > > > > > > V4L2_CID_TEST_PATTERN. The application should query the strings in > > > > > > the menu and determine the option it needs based on that. If it > > > > > > hardcodes particular index, it's a bug. > > > > > > > > > Is there any reason that there is no certain macro define for > > > > > different > > > > type of test pattern in v4l2? > > > > > So App will not depend on any strings where could be different on > > > > different sensor drivers. > > > > > > > > Yes. Available patterns differ significantly between one sensor and > > another, > > > > so the menu positions are considered hardware-specific. > > > > > The problem is even App queries the strings in driver, it still doesn't > > look good enough. > > > Because different driver may have different strings even for same type, > > Color Bar, for example. > > > So it's the best v4l2 could have several standardize names for test > > pattern types. > > > In this case App doesn't need to hard code test pattern strings for > > different sensors. > > > > > Do you think it makes sense? > > > > It sounds quite sensible, assuming that we can find such standard subset. > > > > IMHO a much more scale-able solution would be to have the test pattern > > strings configurable per platform. > What do you mean by a platform here? In Chrome OS, we have camera HAL configuration file for each board. The sensor-specific test pattern could be specified there, rather than hardcoding menu index as in current code. Best regards, Tomasz
Hi Sakari, > -----Original Message----- > From: linux-media-owner@vger.kernel.org [mailto:linux-media- > owner@vger.kernel.org] On Behalf Of Sakari Ailus > Sent: Saturday, May 12, 2018 8:48 PM > To: Zheng, Jian Xu <jian.xu.zheng@intel.com> > Cc: Chen, JasonX Z <jasonx.z.chen@intel.com>; Tomasz Figa > <tfiga@chromium.org>; Yeh, Andy <andy.yeh@intel.com>; Linux Media > Mailing List <linux-media@vger.kernel.org>; Chiang, AlanX > <alanx.chiang@intel.com>; Qiu, Tian Shu <tian.shu.qiu@intel.com> > Subject: Re: [PATCH v11] media: imx258: Add imx258 camera sensor driver > > On Thu, May 10, 2018 at 11:08:43AM +0000, Zheng, Jian Xu wrote: > > Hi Sakari & Jason, > > > > > -----Original Message----- > > > From: linux-media-owner@vger.kernel.org [mailto:linux-media- > > > owner@vger.kernel.org] On Behalf Of Sakari Ailus > > > Sent: Wednesday, May 9, 2018 5:43 PM > > > To: Chen, JasonX Z <jasonx.z.chen@intel.com> > > > Cc: Tomasz Figa <tfiga@chromium.org>; Yeh, Andy > > > <andy.yeh@intel.com>; Linux Media Mailing List > > > <linux-media@vger.kernel.org>; Chiang, AlanX > > > <alanx.chiang@intel.com> > > > Subject: Re: [PATCH v11] media: imx258: Add imx258 camera sensor > > > driver > > > > > > Hi Jason, > > > > > > On Wed, May 09, 2018 at 09:28:30AM +0000, Chen, JasonX Z wrote: > > > > Hello Tomasz > > > > > > > > >> +/* Test Pattern Control */ > > > > >> +#define IMX258_REG_TEST_PATTERN 0x0600 > > > > >> +#define IMX258_TEST_PATTERN_DISABLE 0 > > > > >> +#define IMX258_TEST_PATTERN_SOLID_COLOR 1 > > > > >> +#define IMX258_TEST_PATTERN_COLOR_BARS 2 #define > > > > >> +IMX258_TEST_PATTERN_GREY_COLOR 3 > > > > >> +#define IMX258_TEST_PATTERN_PN9 4 > > > > I suppose we only use IMX258_TEST_PATTERN_COLOR_BARS. I heard that > > we'd better remove the functions/code no one would use. Is that true? e.g. > > remove all h_flip and v_flip ioctls because it's not used by anyone. > > HFLIP and VFLIP support were AFAIR removed as they were not supported > correctly by the driver --- they do affect the pixel order, i.e. the format. So you mean that if the sensor is RAW format, we should not implement HFLIP/VFLIP. Because it changes the pixel order? I don't quite follow the logic here. In the meantime, if the logic works here, we need some other kind of HFLIP/VFLIP ioctl because it's supported by HW. > I see no reason to remove support for the additional test patterns if the > implementation is correct --- in this case, just a single integer value. Best Regards, Jianxu(Clive) Zheng
On Tue, May 15, 2018 at 03:46:37AM +0000, Zheng, Jian Xu wrote: > Hi Sakari, > > > -----Original Message----- > > From: linux-media-owner@vger.kernel.org [mailto:linux-media- > > owner@vger.kernel.org] On Behalf Of Sakari Ailus > > Sent: Saturday, May 12, 2018 8:48 PM > > To: Zheng, Jian Xu <jian.xu.zheng@intel.com> > > Cc: Chen, JasonX Z <jasonx.z.chen@intel.com>; Tomasz Figa > > <tfiga@chromium.org>; Yeh, Andy <andy.yeh@intel.com>; Linux Media > > Mailing List <linux-media@vger.kernel.org>; Chiang, AlanX > > <alanx.chiang@intel.com>; Qiu, Tian Shu <tian.shu.qiu@intel.com> > > Subject: Re: [PATCH v11] media: imx258: Add imx258 camera sensor driver > > > > On Thu, May 10, 2018 at 11:08:43AM +0000, Zheng, Jian Xu wrote: > > > Hi Sakari & Jason, > > > > > > > -----Original Message----- > > > > From: linux-media-owner@vger.kernel.org [mailto:linux-media- > > > > owner@vger.kernel.org] On Behalf Of Sakari Ailus > > > > Sent: Wednesday, May 9, 2018 5:43 PM > > > > To: Chen, JasonX Z <jasonx.z.chen@intel.com> > > > > Cc: Tomasz Figa <tfiga@chromium.org>; Yeh, Andy > > > > <andy.yeh@intel.com>; Linux Media Mailing List > > > > <linux-media@vger.kernel.org>; Chiang, AlanX > > > > <alanx.chiang@intel.com> > > > > Subject: Re: [PATCH v11] media: imx258: Add imx258 camera sensor > > > > driver > > > > > > > > Hi Jason, > > > > > > > > On Wed, May 09, 2018 at 09:28:30AM +0000, Chen, JasonX Z wrote: > > > > > Hello Tomasz > > > > > > > > > > >> +/* Test Pattern Control */ > > > > > >> +#define IMX258_REG_TEST_PATTERN 0x0600 > > > > > >> +#define IMX258_TEST_PATTERN_DISABLE 0 > > > > > >> +#define IMX258_TEST_PATTERN_SOLID_COLOR 1 > > > > > >> +#define IMX258_TEST_PATTERN_COLOR_BARS 2 #define > > > > > >> +IMX258_TEST_PATTERN_GREY_COLOR 3 > > > > > >> +#define IMX258_TEST_PATTERN_PN9 4 > > > > > > I suppose we only use IMX258_TEST_PATTERN_COLOR_BARS. I heard that > > > we'd better remove the functions/code no one would use. Is that true? e.g. > > > remove all h_flip and v_flip ioctls because it's not used by anyone. > > > > HFLIP and VFLIP support were AFAIR removed as they were not supported > > correctly by the driver --- they do affect the pixel order, i.e. the format. > So you mean that if the sensor is RAW format, we should not implement > HFLIP/VFLIP. Because it changes the pixel order? I don't quite follow the > logic here. In the meantime, if the logic works here, we need some other > kind of HFLIP/VFLIP ioctl because it's supported by HW. You can implement it but the implementation needs to be correctly reflect the flipping in the pixel order reported by the driver.
diff --git a/MAINTAINERS b/MAINTAINERS index a339bb5..9f75510 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -12646,6 +12646,13 @@ S: Maintained F: drivers/ssb/ F: include/linux/ssb/ +SONY IMX258 SENSOR DRIVER +M: Sakari Ailus <sakari.ailus@linux.intel.com> +L: linux-media@vger.kernel.org +T: git git://linuxtv.org/media_tree.git +S: Maintained +F: drivers/media/i2c/imx258.c + SONY IMX274 SENSOR DRIVER M: Leon Luo <leonl@leopardimaging.com> L: linux-media@vger.kernel.org diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index fd01842..bcd4bf1 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -565,6 +565,17 @@ config VIDEO_APTINA_PLL config VIDEO_SMIAPP_PLL tristate +config VIDEO_IMX258 + tristate "Sony IMX258 sensor support" + depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API + depends on MEDIA_CAMERA_SUPPORT + ---help--- + This is a Video4Linux2 sensor-level driver for the Sony + IMX258 camera. + + To compile this driver as a module, choose M here: the + module will be called imx258. + config VIDEO_IMX274 tristate "Sony IMX274 sensor support" depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile index 1b62639..4bf7d00 100644 --- a/drivers/media/i2c/Makefile +++ b/drivers/media/i2c/Makefile @@ -94,6 +94,7 @@ obj-$(CONFIG_VIDEO_IR_I2C) += ir-kbd-i2c.o obj-$(CONFIG_VIDEO_ML86V7667) += ml86v7667.o obj-$(CONFIG_VIDEO_OV2659) += ov2659.o obj-$(CONFIG_VIDEO_TC358743) += tc358743.o +obj-$(CONFIG_VIDEO_IMX258) += imx258.o obj-$(CONFIG_VIDEO_IMX274) += imx274.o obj-$(CONFIG_SDR_MAX2175) += max2175.o diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c new file mode 100644 index 0000000..b2e6d06 --- /dev/null +++ b/drivers/media/i2c/imx258.c @@ -0,0 +1,1321 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (C) 2018 Intel Corporation + +#include <linux/acpi.h> +#include <linux/delay.h> +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/pm_runtime.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-device.h> +#include <asm/unaligned.h> + +#define IMX258_REG_VALUE_08BIT 1 +#define IMX258_REG_VALUE_16BIT 2 + +#define IMX258_REG_MODE_SELECT 0x0100 +#define IMX258_MODE_STANDBY 0x00 +#define IMX258_MODE_STREAMING 0x01 + +/* Chip ID */ +#define IMX258_REG_CHIP_ID 0x0016 +#define IMX258_CHIP_ID 0x0258 + +/* V_TIMING internal */ +#define IMX258_VTS_30FPS 0x0c98 +#define IMX258_VTS_30FPS_2K 0x0638 +#define IMX258_VTS_30FPS_VGA 0x034c +#define IMX258_VTS_MAX 0xffff + +/*Frame Length Line*/ +#define IMX258_FLL_MIN 0x08a6 +#define IMX258_FLL_MAX 0xffff +#define IMX258_FLL_STEP 1 +#define IMX258_FLL_DEFAULT 0x0c98 + +/* HBLANK control - read only */ +#define IMX258_PPL_DEFAULT 5352 + +/* Exposure control */ +#define IMX258_REG_EXPOSURE 0x0202 +#define IMX258_EXPOSURE_MIN 4 +#define IMX258_EXPOSURE_STEP 1 +#define IMX258_EXPOSURE_DEFAULT 0x640 +#define IMX258_EXPOSURE_MAX 65535 + +/* Analog gain control */ +#define IMX258_REG_ANALOG_GAIN 0x0204 +#define IMX258_ANA_GAIN_MIN 0 +#define IMX258_ANA_GAIN_MAX 0x1fff +#define IMX258_ANA_GAIN_STEP 1 +#define IMX258_ANA_GAIN_DEFAULT 0x0 + +/* Digital gain control */ +#define IMX258_REG_GR_DIGITAL_GAIN 0x020e +#define IMX258_REG_R_DIGITAL_GAIN 0x0210 +#define IMX258_REG_B_DIGITAL_GAIN 0x0212 +#define IMX258_REG_GB_DIGITAL_GAIN 0x0214 +#define IMX258_DGTL_GAIN_MIN 0 +#define IMX258_DGTL_GAIN_MAX 4096 /* Max = 0xFFF */ +#define IMX258_DGTL_GAIN_DEFAULT 1024 +#define IMX258_DGTL_GAIN_STEP 1 + +/* Test Pattern Control */ +#define IMX258_REG_TEST_PATTERN 0x0600 +#define IMX258_TEST_PATTERN_DISABLE 0 +#define IMX258_TEST_PATTERN_SOLID_COLOR 1 +#define IMX258_TEST_PATTERN_COLOR_BARS 2 +#define IMX258_TEST_PATTERN_GREY_COLOR 3 +#define IMX258_TEST_PATTERN_PN9 4 + +/* Orientation */ +#define REG_MIRROR_FLIP_CONTROL 0x0101 +#define REG_CONFIG_MIRROR_FLIP 0x03 +#define REG_CONFIG_FLIP_TEST_PATTERN 0x02 + +struct imx258_reg { + u16 address; + u8 val; +}; + +struct imx258_reg_list { + u32 num_of_regs; + const struct imx258_reg *regs; +}; + +/* Link frequency config */ +struct imx258_link_freq_config { + u32 pixels_per_line; + + /* PLL registers for this link frequency */ + struct imx258_reg_list reg_list; +}; + +/* Mode : resolution and related config&values */ +struct imx258_mode { + /* Frame width */ + u32 width; + /* Frame height */ + u32 height; + + /* V-timing */ + u32 vts_def; + u32 vts_min; + + /* Index of Link frequency config to be used */ + u32 link_freq_index; + /* Default register values */ + struct imx258_reg_list reg_list; +}; + +/* 4208x3118 needs 1267Mbps/lane, 4 lanes */ +static const struct imx258_reg mipi_data_rate_1267mbps[] = { + { 0x0301, 0x05 }, + { 0x0303, 0x02 }, + { 0x0305, 0x03 }, + { 0x0306, 0x00 }, + { 0x0307, 0xC6 }, + { 0x0309, 0x0A }, + { 0x030B, 0x01 }, + { 0x030D, 0x02 }, + { 0x030E, 0x00 }, + { 0x030F, 0xD8 }, + { 0x0310, 0x00 }, + { 0x0820, 0x13 }, + { 0x0821, 0x4C }, + { 0x0822, 0xCC }, + { 0x0823, 0xCC }, +}; + +static const struct imx258_reg mipi_data_rate_640mbps[] = { + { 0x0301, 0x05 }, + { 0x0303, 0x02 }, + { 0x0305, 0x03 }, + { 0x0306, 0x00 }, + { 0x0307, 0x64 }, + { 0x0309, 0x0A }, + { 0x030B, 0x01 }, + { 0x030D, 0x02 }, + { 0x030E, 0x00 }, + { 0x030F, 0xD8 }, + { 0x0310, 0x00 }, + { 0x0820, 0x0A }, + { 0x0821, 0x00 }, + { 0x0822, 0x00 }, + { 0x0823, 0x00 }, +}; + +static const struct imx258_reg mode_4208x3118_regs[] = { + { 0x0136, 0x13 }, + { 0x0137, 0x33 }, + { 0x3051, 0x00 }, + { 0x3052, 0x00 }, + { 0x4E21, 0x14 }, + { 0x6B11, 0xCF }, + { 0x7FF0, 0x08 }, + { 0x7FF1, 0x0F }, + { 0x7FF2, 0x08 }, + { 0x7FF3, 0x1B }, + { 0x7FF4, 0x23 }, + { 0x7FF5, 0x60 }, + { 0x7FF6, 0x00 }, + { 0x7FF7, 0x01 }, + { 0x7FF8, 0x00 }, + { 0x7FF9, 0x78 }, + { 0x7FFA, 0x00 }, + { 0x7FFB, 0x00 }, + { 0x7FFC, 0x00 }, + { 0x7FFD, 0x00 }, + { 0x7FFE, 0x00 }, + { 0x7FFF, 0x03 }, + { 0x7F76, 0x03 }, + { 0x7F77, 0xFE }, + { 0x7FA8, 0x03 }, + { 0x7FA9, 0xFE }, + { 0x7B24, 0x81 }, + { 0x7B25, 0x00 }, + { 0x6564, 0x07 }, + { 0x6B0D, 0x41 }, + { 0x653D, 0x04 }, + { 0x6B05, 0x8C }, + { 0x6B06, 0xF9 }, + { 0x6B08, 0x65 }, + { 0x6B09, 0xFC }, + { 0x6B0A, 0xCF }, + { 0x6B0B, 0xD2 }, + { 0x6700, 0x0E }, + { 0x6707, 0x0E }, + { 0x9104, 0x00 }, + { 0x4648, 0x7F }, + { 0x7420, 0x00 }, + { 0x7421, 0x1C }, + { 0x7422, 0x00 }, + { 0x7423, 0xD7 }, + { 0x5F04, 0x00 }, + { 0x5F05, 0xED }, + { 0x0112, 0x0A }, + { 0x0113, 0x0A }, + { 0x0114, 0x03 }, + { 0x0342, 0x14 }, + { 0x0343, 0xE8 }, + { 0x0340, 0x0C }, + { 0x0341, 0x50 }, + { 0x0344, 0x00 }, + { 0x0345, 0x00 }, + { 0x0346, 0x00 }, + { 0x0347, 0x00 }, + { 0x0348, 0x10 }, + { 0x0349, 0x6F }, + { 0x034A, 0x0C }, + { 0x034B, 0x2E }, + { 0x0381, 0x01 }, + { 0x0383, 0x01 }, + { 0x0385, 0x01 }, + { 0x0387, 0x01 }, + { 0x0900, 0x00 }, + { 0x0901, 0x11 }, + { 0x0401, 0x00 }, + { 0x0404, 0x00 }, + { 0x0405, 0x10 }, + { 0x0408, 0x00 }, + { 0x0409, 0x00 }, + { 0x040A, 0x00 }, + { 0x040B, 0x00 }, + { 0x040C, 0x10 }, + { 0x040D, 0x70 }, + { 0x040E, 0x0C }, + { 0x040F, 0x30 }, + { 0x3038, 0x00 }, + { 0x303A, 0x00 }, + { 0x303B, 0x10 }, + { 0x300D, 0x00 }, + { 0x034C, 0x10 }, + { 0x034D, 0x70 }, + { 0x034E, 0x0C }, + { 0x034F, 0x30 }, + { 0x0350, 0x01 }, + { 0x0202, 0x0C }, + { 0x0203, 0x46 }, + { 0x0204, 0x00 }, + { 0x0205, 0x00 }, + { 0x020E, 0x01 }, + { 0x020F, 0x00 }, + { 0x0210, 0x01 }, + { 0x0211, 0x00 }, + { 0x0212, 0x01 }, + { 0x0213, 0x00 }, + { 0x0214, 0x01 }, + { 0x0215, 0x00 }, + { 0x7BCD, 0x00 }, + { 0x94DC, 0x20 }, + { 0x94DD, 0x20 }, + { 0x94DE, 0x20 }, + { 0x95DC, 0x20 }, + { 0x95DD, 0x20 }, + { 0x95DE, 0x20 }, + { 0x7FB0, 0x00 }, + { 0x9010, 0x3E }, + { 0x9419, 0x50 }, + { 0x941B, 0x50 }, + { 0x9519, 0x50 }, + { 0x951B, 0x50 }, + { 0x3030, 0x00 }, + { 0x3032, 0x00 }, + { 0x0220, 0x00 }, +}; + +static const struct imx258_reg mode_2104_1560_regs[] = { + { 0x0136, 0x13 }, + { 0x0137, 0x33 }, + { 0x3051, 0x00 }, + { 0x3052, 0x00 }, + { 0x4E21, 0x14 }, + { 0x6B11, 0xCF }, + { 0x7FF0, 0x08 }, + { 0x7FF1, 0x0F }, + { 0x7FF2, 0x08 }, + { 0x7FF3, 0x1B }, + { 0x7FF4, 0x23 }, + { 0x7FF5, 0x60 }, + { 0x7FF6, 0x00 }, + { 0x7FF7, 0x01 }, + { 0x7FF8, 0x00 }, + { 0x7FF9, 0x78 }, + { 0x7FFA, 0x00 }, + { 0x7FFB, 0x00 }, + { 0x7FFC, 0x00 }, + { 0x7FFD, 0x00 }, + { 0x7FFE, 0x00 }, + { 0x7FFF, 0x03 }, + { 0x7F76, 0x03 }, + { 0x7F77, 0xFE }, + { 0x7FA8, 0x03 }, + { 0x7FA9, 0xFE }, + { 0x7B24, 0x81 }, + { 0x7B25, 0x00 }, + { 0x6564, 0x07 }, + { 0x6B0D, 0x41 }, + { 0x653D, 0x04 }, + { 0x6B05, 0x8C }, + { 0x6B06, 0xF9 }, + { 0x6B08, 0x65 }, + { 0x6B09, 0xFC }, + { 0x6B0A, 0xCF }, + { 0x6B0B, 0xD2 }, + { 0x6700, 0x0E }, + { 0x6707, 0x0E }, + { 0x9104, 0x00 }, + { 0x4648, 0x7F }, + { 0x7420, 0x00 }, + { 0x7421, 0x1C }, + { 0x7422, 0x00 }, + { 0x7423, 0xD7 }, + { 0x5F04, 0x00 }, + { 0x5F05, 0xED }, + { 0x0112, 0x0A }, + { 0x0113, 0x0A }, + { 0x0114, 0x03 }, + { 0x0342, 0x14 }, + { 0x0343, 0xE8 }, + { 0x0340, 0x06 }, + { 0x0341, 0x38 }, + { 0x0344, 0x00 }, + { 0x0345, 0x00 }, + { 0x0346, 0x00 }, + { 0x0347, 0x00 }, + { 0x0348, 0x10 }, + { 0x0349, 0x6F }, + { 0x034A, 0x0C }, + { 0x034B, 0x2E }, + { 0x0381, 0x01 }, + { 0x0383, 0x01 }, + { 0x0385, 0x01 }, + { 0x0387, 0x01 }, + { 0x0900, 0x01 }, + { 0x0901, 0x12 }, + { 0x0401, 0x01 }, + { 0x0404, 0x00 }, + { 0x0405, 0x20 }, + { 0x0408, 0x00 }, + { 0x0409, 0x02 }, + { 0x040A, 0x00 }, + { 0x040B, 0x00 }, + { 0x040C, 0x10 }, + { 0x040D, 0x6A }, + { 0x040E, 0x06 }, + { 0x040F, 0x18 }, + { 0x3038, 0x00 }, + { 0x303A, 0x00 }, + { 0x303B, 0x10 }, + { 0x300D, 0x00 }, + { 0x034C, 0x08 }, + { 0x034D, 0x38 }, + { 0x034E, 0x06 }, + { 0x034F, 0x18 }, + { 0x0350, 0x01 }, + { 0x0202, 0x06 }, + { 0x0203, 0x2E }, + { 0x0204, 0x00 }, + { 0x0205, 0x00 }, + { 0x020E, 0x01 }, + { 0x020F, 0x00 }, + { 0x0210, 0x01 }, + { 0x0211, 0x00 }, + { 0x0212, 0x01 }, + { 0x0213, 0x00 }, + { 0x0214, 0x01 }, + { 0x0215, 0x00 }, + { 0x7BCD, 0x01 }, + { 0x94DC, 0x20 }, + { 0x94DD, 0x20 }, + { 0x94DE, 0x20 }, + { 0x95DC, 0x20 }, + { 0x95DD, 0x20 }, + { 0x95DE, 0x20 }, + { 0x7FB0, 0x00 }, + { 0x9010, 0x3E }, + { 0x9419, 0x50 }, + { 0x941B, 0x50 }, + { 0x9519, 0x50 }, + { 0x951B, 0x50 }, + { 0x3030, 0x00 }, + { 0x3032, 0x00 }, + { 0x0220, 0x00 }, +}; + +static const struct imx258_reg mode_1048_780_regs[] = { + { 0x0136, 0x13 }, + { 0x0137, 0x33 }, + { 0x3051, 0x00 }, + { 0x3052, 0x00 }, + { 0x4E21, 0x14 }, + { 0x6B11, 0xCF }, + { 0x7FF0, 0x08 }, + { 0x7FF1, 0x0F }, + { 0x7FF2, 0x08 }, + { 0x7FF3, 0x1B }, + { 0x7FF4, 0x23 }, + { 0x7FF5, 0x60 }, + { 0x7FF6, 0x00 }, + { 0x7FF7, 0x01 }, + { 0x7FF8, 0x00 }, + { 0x7FF9, 0x78 }, + { 0x7FFA, 0x00 }, + { 0x7FFB, 0x00 }, + { 0x7FFC, 0x00 }, + { 0x7FFD, 0x00 }, + { 0x7FFE, 0x00 }, + { 0x7FFF, 0x03 }, + { 0x7F76, 0x03 }, + { 0x7F77, 0xFE }, + { 0x7FA8, 0x03 }, + { 0x7FA9, 0xFE }, + { 0x7B24, 0x81 }, + { 0x7B25, 0x00 }, + { 0x6564, 0x07 }, + { 0x6B0D, 0x41 }, + { 0x653D, 0x04 }, + { 0x6B05, 0x8C }, + { 0x6B06, 0xF9 }, + { 0x6B08, 0x65 }, + { 0x6B09, 0xFC }, + { 0x6B0A, 0xCF }, + { 0x6B0B, 0xD2 }, + { 0x6700, 0x0E }, + { 0x6707, 0x0E }, + { 0x9104, 0x00 }, + { 0x4648, 0x7F }, + { 0x7420, 0x00 }, + { 0x7421, 0x1C }, + { 0x7422, 0x00 }, + { 0x7423, 0xD7 }, + { 0x5F04, 0x00 }, + { 0x5F05, 0xED }, + { 0x0112, 0x0A }, + { 0x0113, 0x0A }, + { 0x0114, 0x03 }, + { 0x0342, 0x14 }, + { 0x0343, 0xE8 }, + { 0x0340, 0x03 }, + { 0x0341, 0x4C }, + { 0x0344, 0x00 }, + { 0x0345, 0x00 }, + { 0x0346, 0x00 }, + { 0x0347, 0x00 }, + { 0x0348, 0x10 }, + { 0x0349, 0x6F }, + { 0x034A, 0x0C }, + { 0x034B, 0x2E }, + { 0x0381, 0x01 }, + { 0x0383, 0x01 }, + { 0x0385, 0x01 }, + { 0x0387, 0x01 }, + { 0x0900, 0x01 }, + { 0x0901, 0x14 }, + { 0x0401, 0x01 }, + { 0x0404, 0x00 }, + { 0x0405, 0x40 }, + { 0x0408, 0x00 }, + { 0x0409, 0x06 }, + { 0x040A, 0x00 }, + { 0x040B, 0x00 }, + { 0x040C, 0x10 }, + { 0x040D, 0x64 }, + { 0x040E, 0x03 }, + { 0x040F, 0x0C }, + { 0x3038, 0x00 }, + { 0x303A, 0x00 }, + { 0x303B, 0x10 }, + { 0x300D, 0x00 }, + { 0x034C, 0x04 }, + { 0x034D, 0x18 }, + { 0x034E, 0x03 }, + { 0x034F, 0x0C }, + { 0x0350, 0x01 }, + { 0x0202, 0x03 }, + { 0x0203, 0x42 }, + { 0x0204, 0x00 }, + { 0x0205, 0x00 }, + { 0x020E, 0x01 }, + { 0x020F, 0x00 }, + { 0x0210, 0x01 }, + { 0x0211, 0x00 }, + { 0x0212, 0x01 }, + { 0x0213, 0x00 }, + { 0x0214, 0x01 }, + { 0x0215, 0x00 }, + { 0x7BCD, 0x00 }, + { 0x94DC, 0x20 }, + { 0x94DD, 0x20 }, + { 0x94DE, 0x20 }, + { 0x95DC, 0x20 }, + { 0x95DD, 0x20 }, + { 0x95DE, 0x20 }, + { 0x7FB0, 0x00 }, + { 0x9010, 0x3E }, + { 0x9419, 0x50 }, + { 0x941B, 0x50 }, + { 0x9519, 0x50 }, + { 0x951B, 0x50 }, + { 0x3030, 0x00 }, + { 0x3032, 0x00 }, + { 0x0220, 0x00 }, +}; + +static const char * const imx258_test_pattern_menu[] = { + "Disabled", + "Color Bars", + "Solid Color", + "Grey Color Bars", + "PN9" +}; + +static const int imx258_test_pattern_val[] = { + IMX258_TEST_PATTERN_DISABLE, + IMX258_TEST_PATTERN_COLOR_BARS, + IMX258_TEST_PATTERN_SOLID_COLOR, + IMX258_TEST_PATTERN_GREY_COLOR, + IMX258_TEST_PATTERN_PN9, +}; + +/* Configurations for supported link frequencies */ +#define IMX258_LINK_FREQ_634MHZ 633600000ULL +#define IMX258_LINK_FREQ_320MHZ 320000000ULL + +enum { + IMX258_LINK_FREQ_1267MBPS, + IMX258_LINK_FREQ_640MBPS, +}; + +/* + * pixel_rate = link_freq * data-rate * nr_of_lanes / bits_per_sample + * data rate => double data rate; number of lanes => 4; bits per pixel => 10 + */ +static u64 link_freq_to_pixel_rate(u64 f) +{ + f *= 2 * 4; + do_div(f, 10); + + return f; +} + +/* Menu items for LINK_FREQ V4L2 control */ +static const s64 link_freq_menu_items[] = { + IMX258_LINK_FREQ_634MHZ, + IMX258_LINK_FREQ_320MHZ, +}; + +/* Link frequency configs */ +static const struct imx258_link_freq_config link_freq_configs[] = { + [IMX258_LINK_FREQ_1267MBPS] = { + .pixels_per_line = IMX258_PPL_DEFAULT, + .reg_list = { + .num_of_regs = ARRAY_SIZE(mipi_data_rate_1267mbps), + .regs = mipi_data_rate_1267mbps, + } + }, + [IMX258_LINK_FREQ_640MBPS] = { + .pixels_per_line = IMX258_PPL_DEFAULT, + .reg_list = { + .num_of_regs = ARRAY_SIZE(mipi_data_rate_640mbps), + .regs = mipi_data_rate_640mbps, + } + }, +}; + +/* Mode configs */ +static const struct imx258_mode supported_modes[] = { + { + .width = 4208, + .height = 3118, + .vts_def = IMX258_VTS_30FPS, + .vts_min = IMX258_VTS_30FPS, + .reg_list = { + .num_of_regs = ARRAY_SIZE(mode_4208x3118_regs), + .regs = mode_4208x3118_regs, + }, + .link_freq_index = IMX258_LINK_FREQ_1267MBPS, + }, + { + .width = 2104, + .height = 1560, + .vts_def = IMX258_VTS_30FPS_2K, + .vts_min = IMX258_VTS_30FPS_2K, + .reg_list = { + .num_of_regs = ARRAY_SIZE(mode_2104_1560_regs), + .regs = mode_2104_1560_regs, + }, + .link_freq_index = IMX258_LINK_FREQ_640MBPS, + }, + { + .width = 1048, + .height = 780, + .vts_def = IMX258_VTS_30FPS_VGA, + .vts_min = IMX258_VTS_30FPS_VGA, + .reg_list = { + .num_of_regs = ARRAY_SIZE(mode_1048_780_regs), + .regs = mode_1048_780_regs, + }, + .link_freq_index = IMX258_LINK_FREQ_640MBPS, + }, +}; + +struct imx258 { + struct v4l2_subdev sd; + struct media_pad pad; + + struct v4l2_ctrl_handler ctrl_handler; + /* V4L2 Controls */ + struct v4l2_ctrl *link_freq; + struct v4l2_ctrl *pixel_rate; + struct v4l2_ctrl *vblank; + struct v4l2_ctrl *hblank; + struct v4l2_ctrl *exposure; + + /* Current mode */ + const struct imx258_mode *cur_mode; + + /* + * Mutex for serialized access: + * Protect sensor module set pad format and start/stop streaming safely. + */ + struct mutex mutex; + + /* Streaming on/off */ + bool streaming; +}; + +static inline struct imx258 *to_imx258(struct v4l2_subdev *_sd) +{ + return container_of(_sd, struct imx258, sd); +} + +/* Read registers up to 2 at a time */ +static int imx258_read_reg(struct imx258 *imx258, u16 reg, u32 len, u32 *val) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); + struct i2c_msg msgs[2]; + u8 addr_buf[2] = { reg >> 8, reg & 0xff }; + u8 data_buf[4] = { 0, }; + int ret; + + if (len > 4) + return -EINVAL; + + /* Write register address */ + msgs[0].addr = client->addr; + msgs[0].flags = 0; + msgs[0].len = ARRAY_SIZE(addr_buf); + msgs[0].buf = addr_buf; + + /* Read data from register */ + msgs[1].addr = client->addr; + msgs[1].flags = I2C_M_RD; + msgs[1].len = len; + msgs[1].buf = &data_buf[4 - len]; + + ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); + if (ret != ARRAY_SIZE(msgs)) + return -EIO; + + *val = get_unaligned_be32(data_buf); + + return 0; +} + +/* Write registers up to 2 at a time */ +static int imx258_write_reg(struct imx258 *imx258, u16 reg, u32 len, u32 val) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); + u8 buf[6]; + + if (len > 4) + return -EINVAL; + + put_unaligned_be16(reg, buf); + put_unaligned_be32(val << (8 * (4 - len)), buf + 2); + if (i2c_master_send(client, buf, len + 2) != len + 2) + return -EIO; + + return 0; +} + +/* Write a list of registers */ +static int imx258_write_regs(struct imx258 *imx258, + const struct imx258_reg *regs, u32 len) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); + unsigned int i; + int ret; + + for (i = 0; i < len; i++) { + ret = imx258_write_reg(imx258, regs[i].address, 1, + regs[i].val); + if (ret) { + dev_err_ratelimited( + &client->dev, + "Failed to write reg 0x%4.4x. error = %d\n", + regs[i].address, ret); + + return ret; + } + } + + return 0; +} + +/* Open sub-device */ +static int imx258_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) +{ + struct v4l2_mbus_framefmt *try_fmt = + v4l2_subdev_get_try_format(sd, fh->pad, 0); + + /* Initialize try_fmt */ + try_fmt->width = supported_modes[0].width; + try_fmt->height = supported_modes[0].height; + try_fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10; + try_fmt->field = V4L2_FIELD_NONE; + + return 0; +} + +static int imx258_update_digital_gain(struct imx258 *imx258, u32 len, u32 val) +{ + int ret; + + ret = imx258_write_reg(imx258, IMX258_REG_GR_DIGITAL_GAIN, + IMX258_REG_VALUE_16BIT, + val); + if (ret) + return ret; + ret = imx258_write_reg(imx258, IMX258_REG_GB_DIGITAL_GAIN, + IMX258_REG_VALUE_16BIT, + val); + if (ret) + return ret; + ret = imx258_write_reg(imx258, IMX258_REG_R_DIGITAL_GAIN, + IMX258_REG_VALUE_16BIT, + val); + if (ret) + return ret; + ret = imx258_write_reg(imx258, IMX258_REG_B_DIGITAL_GAIN, + IMX258_REG_VALUE_16BIT, + val); + if (ret) + return ret; + return 0; +} + +static int imx258_set_ctrl(struct v4l2_ctrl *ctrl) +{ + struct imx258 *imx258 = + container_of(ctrl->handler, struct imx258, ctrl_handler); + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); + int ret = 0; + + /* + * Applying V4L2 control value only happens + * when power is up for streaming + */ + if (pm_runtime_get_if_in_use(&client->dev) == 0) + return 0; + + switch (ctrl->id) { + case V4L2_CID_ANALOGUE_GAIN: + ret = imx258_write_reg(imx258, IMX258_REG_ANALOG_GAIN, + IMX258_REG_VALUE_16BIT, + ctrl->val); + break; + case V4L2_CID_EXPOSURE: + ret = imx258_write_reg(imx258, IMX258_REG_EXPOSURE, + IMX258_REG_VALUE_16BIT, + ctrl->val); + break; + case V4L2_CID_DIGITAL_GAIN: + ret = imx258_update_digital_gain(imx258, IMX258_REG_VALUE_16BIT, + ctrl->val); + break; + case V4L2_CID_TEST_PATTERN: + ret = imx258_write_reg(imx258, IMX258_REG_TEST_PATTERN, + IMX258_REG_VALUE_16BIT, + imx258_test_pattern_val[ctrl->val]); + + ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL, + IMX258_REG_VALUE_08BIT, + ctrl->val == imx258_test_pattern_val + [IMX258_TEST_PATTERN_DISABLE] ? + REG_CONFIG_MIRROR_FLIP : + REG_CONFIG_FLIP_TEST_PATTERN); + break; + default: + dev_info(&client->dev, + "ctrl(id:0x%x,val:0x%x) is not handled\n", + ctrl->id, ctrl->val); + ret = -EINVAL; + break; + } + + pm_runtime_put(&client->dev); + + return ret; +} + +static const struct v4l2_ctrl_ops imx258_ctrl_ops = { + .s_ctrl = imx258_set_ctrl, +}; + +static int imx258_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_mbus_code_enum *code) +{ + /* Only one bayer order(GRBG) is supported */ + if (code->index > 0) + return -EINVAL; + + code->code = MEDIA_BUS_FMT_SGRBG10_1X10; + + return 0; +} + +static int imx258_enum_frame_size(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_frame_size_enum *fse) +{ + if (fse->index >= ARRAY_SIZE(supported_modes)) + return -EINVAL; + + if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10) + return -EINVAL; + + fse->min_width = supported_modes[fse->index].width; + fse->max_width = fse->min_width; + fse->min_height = supported_modes[fse->index].height; + fse->max_height = fse->min_height; + + return 0; +} + +static void imx258_update_pad_format(const struct imx258_mode *mode, + struct v4l2_subdev_format *fmt) +{ + fmt->format.width = mode->width; + fmt->format.height = mode->height; + fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10; + fmt->format.field = V4L2_FIELD_NONE; +} + +static int __imx258_get_pad_format(struct imx258 *imx258, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *fmt) +{ + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) + fmt->format = *v4l2_subdev_get_try_format(&imx258->sd, cfg, + fmt->pad); + else + imx258_update_pad_format(imx258->cur_mode, fmt); + + return 0; +} + +static int imx258_get_pad_format(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *fmt) +{ + struct imx258 *imx258 = to_imx258(sd); + int ret; + + mutex_lock(&imx258->mutex); + ret = __imx258_get_pad_format(imx258, cfg, fmt); + mutex_unlock(&imx258->mutex); + + return ret; +} + +static int imx258_set_pad_format(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *fmt) +{ + struct imx258 *imx258 = to_imx258(sd); + const struct imx258_mode *mode; + struct v4l2_mbus_framefmt *framefmt; + s32 vblank_def; + s32 vblank_min; + s64 h_blank; + s64 pixel_rate; + s64 link_freq; + + mutex_lock(&imx258->mutex); + + /* Only one raw bayer(GBRG) order is supported */ + fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10; + + mode = v4l2_find_nearest_size(supported_modes, + ARRAY_SIZE(supported_modes), width, height, + fmt->format.width, fmt->format.height); + imx258_update_pad_format(mode, fmt); + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { + framefmt = v4l2_subdev_get_try_format(sd, cfg, fmt->pad); + *framefmt = fmt->format; + } else { + imx258->cur_mode = mode; + __v4l2_ctrl_s_ctrl(imx258->link_freq, mode->link_freq_index); + + link_freq = link_freq_menu_items[mode->link_freq_index]; + pixel_rate = link_freq_to_pixel_rate(link_freq); + __v4l2_ctrl_s_ctrl_int64(imx258->pixel_rate, pixel_rate); + /* Update limits and set FPS to default */ + vblank_def = imx258->cur_mode->vts_def - + imx258->cur_mode->height; + vblank_min = imx258->cur_mode->vts_min - + imx258->cur_mode->height; + __v4l2_ctrl_modify_range( + imx258->vblank, vblank_min, + IMX258_VTS_MAX - imx258->cur_mode->height, 1, + vblank_def); + __v4l2_ctrl_s_ctrl(imx258->vblank, vblank_def); + h_blank = + link_freq_configs[mode->link_freq_index].pixels_per_line + - imx258->cur_mode->width; + __v4l2_ctrl_modify_range(imx258->hblank, h_blank, + h_blank, 1, h_blank); + } + + mutex_unlock(&imx258->mutex); + + return 0; +} + +/* Start streaming */ +static int imx258_start_streaming(struct imx258 *imx258) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); + const struct imx258_reg_list *reg_list; + int ret, link_freq_index; + + /* Setup PLL */ + link_freq_index = imx258->cur_mode->link_freq_index; + reg_list = &link_freq_configs[link_freq_index].reg_list; + ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs); + if (ret) { + dev_err(&client->dev, "%s failed to set plls\n", __func__); + return ret; + } + + /* Apply default values of current mode */ + reg_list = &imx258->cur_mode->reg_list; + ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs); + if (ret) { + dev_err(&client->dev, "%s failed to set mode\n", __func__); + return ret; + } + + /* Set Orientation be 180 degree */ + ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL, + IMX258_REG_VALUE_08BIT, REG_CONFIG_MIRROR_FLIP); + if (ret) { + dev_err(&client->dev, "%s failed to set orientation\n", + __func__); + return ret; + } + + /* Apply customized values from user */ + ret = __v4l2_ctrl_handler_setup(imx258->sd.ctrl_handler); + if (ret) + return ret; + + /* set stream on register */ + return imx258_write_reg(imx258, IMX258_REG_MODE_SELECT, + IMX258_REG_VALUE_08BIT, + IMX258_MODE_STREAMING); +} + +/* Stop streaming */ +static int imx258_stop_streaming(struct imx258 *imx258) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); + int ret; + + /* set stream off register */ + ret = imx258_write_reg(imx258, IMX258_REG_MODE_SELECT, + IMX258_REG_VALUE_08BIT, IMX258_MODE_STANDBY); + if (ret) + dev_err(&client->dev, "%s failed to set stream\n", __func__); + + /* + * Return success even if it was an error, as there is nothing the + * caller can do about it. + */ + return 0; +} + +static int imx258_set_stream(struct v4l2_subdev *sd, int enable) +{ + struct imx258 *imx258 = to_imx258(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); + int ret = 0; + + mutex_lock(&imx258->mutex); + if (imx258->streaming == enable) { + mutex_unlock(&imx258->mutex); + return 0; + } + + if (enable) { + ret = pm_runtime_get_sync(&client->dev); + if (ret < 0) { + pm_runtime_put_noidle(&client->dev); + goto err_unlock; + } + + /* + * Apply default & customized values + * and then start streaming. + */ + ret = imx258_start_streaming(imx258); + if (ret) + goto err_rpm_put; + } else { + imx258_stop_streaming(imx258); + pm_runtime_put(&client->dev); + } + + imx258->streaming = enable; + mutex_unlock(&imx258->mutex); + + return ret; + +err_rpm_put: + pm_runtime_put(&client->dev); +err_unlock: + mutex_unlock(&imx258->mutex); + + return ret; +} + +static int __maybe_unused imx258_suspend(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct imx258 *imx258 = to_imx258(sd); + + if (imx258->streaming) + imx258_stop_streaming(imx258); + + return 0; +} + +static int __maybe_unused imx258_resume(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct imx258 *imx258 = to_imx258(sd); + int ret; + + if (imx258->streaming) { + ret = imx258_start_streaming(imx258); + if (ret) + goto error; + } + + return 0; + +error: + imx258_stop_streaming(imx258); + imx258->streaming = 0; + return ret; +} + +/* Verify chip ID */ +static int imx258_identify_module(struct imx258 *imx258) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); + int ret; + u32 val; + + ret = imx258_read_reg(imx258, IMX258_REG_CHIP_ID, + IMX258_REG_VALUE_16BIT, &val); + if (ret) { + dev_err(&client->dev, "failed to read chip id %x\n", + IMX258_CHIP_ID); + return ret; + } + + if (val != IMX258_CHIP_ID) { + dev_err(&client->dev, "chip id mismatch: %x!=%x\n", + IMX258_CHIP_ID, val); + return -EIO; + } + + return 0; +} + +static const struct v4l2_subdev_video_ops imx258_video_ops = { + .s_stream = imx258_set_stream, +}; + +static const struct v4l2_subdev_pad_ops imx258_pad_ops = { + .enum_mbus_code = imx258_enum_mbus_code, + .get_fmt = imx258_get_pad_format, + .set_fmt = imx258_set_pad_format, + .enum_frame_size = imx258_enum_frame_size, +}; + +static const struct v4l2_subdev_ops imx258_subdev_ops = { + .video = &imx258_video_ops, + .pad = &imx258_pad_ops, +}; + +static const struct v4l2_subdev_internal_ops imx258_internal_ops = { + .open = imx258_open, +}; + +/* Initialize control handlers */ +static int imx258_init_controls(struct imx258 *imx258) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); + struct v4l2_ctrl_handler *ctrl_hdlr; + s64 exposure_max; + s64 vblank_def; + s64 vblank_min; + s64 pixel_rate_min; + s64 pixel_rate_max; + int ret; + + ctrl_hdlr = &imx258->ctrl_handler; + ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8); + if (ret) + return ret; + + mutex_init(&imx258->mutex); + ctrl_hdlr->lock = &imx258->mutex; + imx258->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr, + &imx258_ctrl_ops, + V4L2_CID_LINK_FREQ, + ARRAY_SIZE(link_freq_menu_items) - 1, + 0, + link_freq_menu_items); + + if (imx258->link_freq) + imx258->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; + + pixel_rate_max = link_freq_to_pixel_rate(link_freq_menu_items[0]); + pixel_rate_min = link_freq_to_pixel_rate(link_freq_menu_items[1]); + /* By default, PIXEL_RATE is read only */ + imx258->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, + V4L2_CID_PIXEL_RATE, + pixel_rate_min, pixel_rate_max, + 1, pixel_rate_max); + + + vblank_def = imx258->cur_mode->vts_def - imx258->cur_mode->height; + vblank_min = imx258->cur_mode->vts_min - imx258->cur_mode->height; + imx258->vblank = v4l2_ctrl_new_std( + ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_VBLANK, + vblank_min, + IMX258_VTS_MAX - imx258->cur_mode->height, 1, + vblank_def); + + if (imx258->vblank) + imx258->vblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; + + imx258->hblank = v4l2_ctrl_new_std( + ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_HBLANK, + IMX258_PPL_DEFAULT - imx258->cur_mode->width, + IMX258_PPL_DEFAULT - imx258->cur_mode->width, + 1, + IMX258_PPL_DEFAULT - imx258->cur_mode->width); + + if (imx258->hblank) + imx258->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; + + exposure_max = imx258->cur_mode->vts_def - 8; + imx258->exposure = v4l2_ctrl_new_std( + ctrl_hdlr, &imx258_ctrl_ops, + V4L2_CID_EXPOSURE, IMX258_EXPOSURE_MIN, + IMX258_EXPOSURE_MAX, IMX258_EXPOSURE_STEP, + IMX258_EXPOSURE_DEFAULT); + + v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, + IMX258_ANA_GAIN_MIN, IMX258_ANA_GAIN_MAX, + IMX258_ANA_GAIN_STEP, IMX258_ANA_GAIN_DEFAULT); + + v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_DIGITAL_GAIN, + IMX258_DGTL_GAIN_MIN, IMX258_DGTL_GAIN_MAX, + IMX258_DGTL_GAIN_STEP, + IMX258_DGTL_GAIN_DEFAULT); + + v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &imx258_ctrl_ops, + V4L2_CID_TEST_PATTERN, + ARRAY_SIZE(imx258_test_pattern_menu) - 1, + 0, 0, imx258_test_pattern_menu); + + if (ctrl_hdlr->error) { + ret = ctrl_hdlr->error; + dev_err(&client->dev, "%s control init failed (%d)\n", + __func__, ret); + goto error; + } + + imx258->sd.ctrl_handler = ctrl_hdlr; + + return 0; + +error: + v4l2_ctrl_handler_free(ctrl_hdlr); + mutex_destroy(&imx258->mutex); + + return ret; +} + +static void imx258_free_controls(struct imx258 *imx258) +{ + v4l2_ctrl_handler_free(imx258->sd.ctrl_handler); + mutex_destroy(&imx258->mutex); +} + +static int imx258_probe(struct i2c_client *client) +{ + struct imx258 *imx258; + int ret; + u32 val = 0; + + device_property_read_u32(&client->dev, "clock-frequency", &val); + if (val != 19200000) + return -EINVAL; + + imx258 = devm_kzalloc(&client->dev, sizeof(*imx258), GFP_KERNEL); + if (!imx258) + return -ENOMEM; + + /* Initialize subdev */ + v4l2_i2c_subdev_init(&imx258->sd, client, &imx258_subdev_ops); + + /* Check module identity */ + ret = imx258_identify_module(imx258); + if (ret) + return ret; + + /* Set default mode to max resolution */ + imx258->cur_mode = &supported_modes[0]; + + ret = imx258_init_controls(imx258); + if (ret) + return ret; + + /* Initialize subdev */ + imx258->sd.internal_ops = &imx258_internal_ops; + imx258->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; + imx258->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; + + /* Initialize source pad */ + imx258->pad.flags = MEDIA_PAD_FL_SOURCE; + + ret = media_entity_pads_init(&imx258->sd.entity, 1, &imx258->pad); + if (ret) { + goto error_handler_free; + } + + ret = v4l2_async_register_subdev_sensor_common(&imx258->sd); + if (ret < 0) + goto error_media_entity; + + pm_runtime_set_active(&client->dev); + pm_runtime_enable(&client->dev); + pm_runtime_idle(&client->dev); + + return 0; + +error_media_entity: + media_entity_cleanup(&imx258->sd.entity); + +error_handler_free: + imx258_free_controls(imx258); + + return ret; +} + +static int imx258_remove(struct i2c_client *client) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct imx258 *imx258 = to_imx258(sd); + + v4l2_async_unregister_subdev(sd); + media_entity_cleanup(&sd->entity); + imx258_free_controls(imx258); + + pm_runtime_disable(&client->dev); + pm_runtime_set_suspended(&client->dev); + + return 0; +} + +static const struct dev_pm_ops imx258_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(imx258_suspend, imx258_resume) +}; + +#ifdef CONFIG_ACPI +static const struct acpi_device_id imx258_acpi_ids[] = { + { "SONY258A" }, + { /* sentinel */ } +}; + +MODULE_DEVICE_TABLE(acpi, imx258_acpi_ids); +#endif + +static struct i2c_driver imx258_i2c_driver = { + .driver = { + .name = "imx258", + .pm = &imx258_pm_ops, + .acpi_match_table = ACPI_PTR(imx258_acpi_ids), + }, + .probe_new = imx258_probe, + .remove = imx258_remove, +}; + +module_i2c_driver(imx258_i2c_driver); + +MODULE_AUTHOR("Yeh, Andy <andy.yeh@intel.com>"); +MODULE_AUTHOR("Chiang, Alan <alanx.chiang@intel.com>"); +MODULE_AUTHOR("Chen, Jason <jasonx.z.chen@intel.com>"); +MODULE_DESCRIPTION("Sony IMX258 sensor driver"); +MODULE_LICENSE("GPL v2");