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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-07 17:49:05 +0900 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-07 17:49:05 +0900 |
commit | 0b8e74c6f44094189dbe78baf4101acc7570c6af (patch) | |
tree | 6440561d09fb71ba5928664604ec92f29940be6b /drivers/media/usb/pwc/pwc-v4l.c | |
parent | 7f60ba388f5b9dd8b0da463b394412dace3ab814 (diff) | |
parent | bd0d10498826ed150da5e4c45baf8b9c7088fb71 (diff) | |
download | lwn-0b8e74c6f44094189dbe78baf4101acc7570c6af.tar.gz lwn-0b8e74c6f44094189dbe78baf4101acc7570c6af.zip |
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
"The first part of the media updates for Kernel 3.7.
This series contain:
- A major tree renaming patch series: now, drivers are organized
internally by their used bus, instead of by V4L2 and/or DVB API,
providing a cleaner driver location for hybrid drivers that
implement both APIs, and allowing to cleanup the Kconfig items and
make them more intuitive for the end user;
- Media Kernel developers are typically very lazy with their duties
of keeping the MAINTAINERS entries for their drivers updated. As
now the tree is more organized, we're doing an effort to add/update
those entries for the drivers that aren't currently orphan;
- Several DVB USB drivers got moved to a new DVB USB v2 core; the new
core fixes several bugs (as the existing one that got bitroted).
Now, suspend/resume finally started to work fine (at least with
some devices - we should expect more work with regards to it);
- added multistream support for DVB-T2, and unified the API for
DVB-S2 and ISDB-S. Backward binary support is preserved;
- as usual, a few new drivers, some V4L2 core improvements and lots
of drivers improvements and fixes.
There are some points to notice on this series:
1) you should expect a trivial merge conflict on your tree, with the
removal of Documentation/feature-removal-schedule.txt: this series
would be adding two additional entries there. I opted to not
rebase it due to this recent change;
2) With regards to the PCTV 520e udev-related breakage, I opted to
fix it in a way that the patches can be backported to 3.5 even
without your firmware fix patch. This way, Greg doesn't need to
rush backporting your patch (as there are still the firmware cache
and firmware path customization issues to be addressed there).
I'll send later a patch (likely after the end of the merge window)
reverting the rest of the DRX-K async firmware request, fully
restoring its original behaviour to allow media drivers to
initialize everything serialized as before for 3.7 and upper.
3) I'm planning to work on this weekend to test the DMABUF patches
for V4L2. The patches are on my queue for several Kernel cycles,
but, up to now, there is/was no way to test the series locally.
I have some concerns about this particular changeset with regards
to security issues, and with regards to the replacement of the old
VIDIOC_OVERLAY ioctl's that is broken on modern systems, due to
GPU drivers change. The Overlay API allows direct PCI2PCI
transfers from a media capture card into the GPU framebuffer, but
its API is crappy. Also, the only existing X11 driver that
implements it requires a XV extension that is not available
anymore on modern drivers. The DMABUF can do the same thing, but
with it is promising to be a properly-designed API. If I can
successfully test this series and be happy with it, I should be
asking you to pull them next week."
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (717 commits)
em28xx: regression fix: use DRX-K sync firmware requests on em28xx
drxk: allow loading firmware synchrousnously
em28xx: Make all em28xx extensions to be initialized asynchronously
[media] tda18271: properly report read errors in tda18271_get_id
[media] tda18271: delay IR & RF calibration until init() if delay_cal is set
[media] MAINTAINERS: add Michael Krufky as tda827x maintainer
[media] MAINTAINERS: add Michael Krufky as tda8290 maintainer
[media] MAINTAINERS: add Michael Krufky as cxusb maintainer
[media] MAINTAINERS: add Michael Krufky as lg2160 maintainer
[media] MAINTAINERS: add Michael Krufky as lgdt3305 maintainer
[media] MAINTAINERS: add Michael Krufky as mxl111sf maintainer
[media] MAINTAINERS: add Michael Krufky as mxl5007t maintainer
[media] MAINTAINERS: add Michael Krufky as tda18271 maintainer
[media] s5p-tv: Report only multi-plane capabilities in vidioc_querycap
[media] s5p-mfc: Fix misplaced return statement in s5p_mfc_suspend()
[media] exynos-gsc: Add missing static storage class specifiers
[media] exynos-gsc: Remove <linux/version.h> header file inclusion
[media] s5p-fimc: Fix incorrect condition in fimc_lite_reqbufs()
[media] s5p-tv: Fix potential NULL pointer dereference error
[media] s5k6aa: Fix possible NULL pointer dereference
...
Diffstat (limited to 'drivers/media/usb/pwc/pwc-v4l.c')
-rw-r--r-- | drivers/media/usb/pwc/pwc-v4l.c | 1053 |
1 files changed, 1053 insertions, 0 deletions
diff --git a/drivers/media/usb/pwc/pwc-v4l.c b/drivers/media/usb/pwc/pwc-v4l.c new file mode 100644 index 000000000000..545e9bbdeede --- /dev/null +++ b/drivers/media/usb/pwc/pwc-v4l.c @@ -0,0 +1,1053 @@ +/* Linux driver for Philips webcam + USB and Video4Linux interface part. + (C) 1999-2004 Nemosoft Unv. + (C) 2004-2006 Luc Saillard (luc@saillard.org) + (C) 2011 Hans de Goede <hdegoede@redhat.com> + + NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx + driver and thus may have bugs that are not present in the original version. + Please send bug reports and support requests to <luc@saillard.org>. + The decompression routines have been implemented by reverse-engineering the + Nemosoft binary pwcx module. Caveat emptor. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +*/ + +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/mm.h> +#include <linux/module.h> +#include <linux/poll.h> +#include <linux/vmalloc.h> +#include <linux/jiffies.h> +#include <asm/io.h> + +#include "pwc.h" + +#define PWC_CID_CUSTOM(ctrl) ((V4L2_CID_USER_BASE | 0xf000) + custom_ ## ctrl) + +static int pwc_g_volatile_ctrl(struct v4l2_ctrl *ctrl); +static int pwc_s_ctrl(struct v4l2_ctrl *ctrl); + +static const struct v4l2_ctrl_ops pwc_ctrl_ops = { + .g_volatile_ctrl = pwc_g_volatile_ctrl, + .s_ctrl = pwc_s_ctrl, +}; + +enum { awb_indoor, awb_outdoor, awb_fl, awb_manual, awb_auto }; +enum { custom_autocontour, custom_contour, custom_noise_reduction, + custom_awb_speed, custom_awb_delay, + custom_save_user, custom_restore_user, custom_restore_factory }; + +const char * const pwc_auto_whitebal_qmenu[] = { + "Indoor (Incandescant Lighting) Mode", + "Outdoor (Sunlight) Mode", + "Indoor (Fluorescent Lighting) Mode", + "Manual Mode", + "Auto Mode", + NULL +}; + +static const struct v4l2_ctrl_config pwc_auto_white_balance_cfg = { + .ops = &pwc_ctrl_ops, + .id = V4L2_CID_AUTO_WHITE_BALANCE, + .type = V4L2_CTRL_TYPE_MENU, + .max = awb_auto, + .qmenu = pwc_auto_whitebal_qmenu, +}; + +static const struct v4l2_ctrl_config pwc_autocontour_cfg = { + .ops = &pwc_ctrl_ops, + .id = PWC_CID_CUSTOM(autocontour), + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Auto contour", + .min = 0, + .max = 1, + .step = 1, +}; + +static const struct v4l2_ctrl_config pwc_contour_cfg = { + .ops = &pwc_ctrl_ops, + .id = PWC_CID_CUSTOM(contour), + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Contour", + .flags = V4L2_CTRL_FLAG_SLIDER, + .min = 0, + .max = 63, + .step = 1, +}; + +static const struct v4l2_ctrl_config pwc_backlight_cfg = { + .ops = &pwc_ctrl_ops, + .id = V4L2_CID_BACKLIGHT_COMPENSATION, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .min = 0, + .max = 1, + .step = 1, +}; + +static const struct v4l2_ctrl_config pwc_flicker_cfg = { + .ops = &pwc_ctrl_ops, + .id = V4L2_CID_BAND_STOP_FILTER, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .min = 0, + .max = 1, + .step = 1, +}; + +static const struct v4l2_ctrl_config pwc_noise_reduction_cfg = { + .ops = &pwc_ctrl_ops, + .id = PWC_CID_CUSTOM(noise_reduction), + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Dynamic Noise Reduction", + .min = 0, + .max = 3, + .step = 1, +}; + +static const struct v4l2_ctrl_config pwc_save_user_cfg = { + .ops = &pwc_ctrl_ops, + .id = PWC_CID_CUSTOM(save_user), + .type = V4L2_CTRL_TYPE_BUTTON, + .name = "Save User Settings", +}; + +static const struct v4l2_ctrl_config pwc_restore_user_cfg = { + .ops = &pwc_ctrl_ops, + .id = PWC_CID_CUSTOM(restore_user), + .type = V4L2_CTRL_TYPE_BUTTON, + .name = "Restore User Settings", +}; + +static const struct v4l2_ctrl_config pwc_restore_factory_cfg = { + .ops = &pwc_ctrl_ops, + .id = PWC_CID_CUSTOM(restore_factory), + .type = V4L2_CTRL_TYPE_BUTTON, + .name = "Restore Factory Settings", +}; + +static const struct v4l2_ctrl_config pwc_awb_speed_cfg = { + .ops = &pwc_ctrl_ops, + .id = PWC_CID_CUSTOM(awb_speed), + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Auto White Balance Speed", + .min = 1, + .max = 32, + .step = 1, +}; + +static const struct v4l2_ctrl_config pwc_awb_delay_cfg = { + .ops = &pwc_ctrl_ops, + .id = PWC_CID_CUSTOM(awb_delay), + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Auto White Balance Delay", + .min = 0, + .max = 63, + .step = 1, +}; + +int pwc_init_controls(struct pwc_device *pdev) +{ + struct v4l2_ctrl_handler *hdl; + struct v4l2_ctrl_config cfg; + int r, def; + + hdl = &pdev->ctrl_handler; + r = v4l2_ctrl_handler_init(hdl, 20); + if (r) + return r; + + /* Brightness, contrast, saturation, gamma */ + r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, BRIGHTNESS_FORMATTER, &def); + if (r || def > 127) + def = 63; + pdev->brightness = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_BRIGHTNESS, 0, 127, 1, def); + + r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, CONTRAST_FORMATTER, &def); + if (r || def > 63) + def = 31; + pdev->contrast = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_CONTRAST, 0, 63, 1, def); + + if (pdev->type >= 675) { + if (pdev->type < 730) + pdev->saturation_fmt = SATURATION_MODE_FORMATTER2; + else + pdev->saturation_fmt = SATURATION_MODE_FORMATTER1; + r = pwc_get_s8_ctrl(pdev, GET_CHROM_CTL, pdev->saturation_fmt, + &def); + if (r || def < -100 || def > 100) + def = 0; + pdev->saturation = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_SATURATION, -100, 100, 1, def); + } + + r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, GAMMA_FORMATTER, &def); + if (r || def > 31) + def = 15; + pdev->gamma = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_GAMMA, 0, 31, 1, def); + + /* auto white balance, red gain, blue gain */ + r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL, WB_MODE_FORMATTER, &def); + if (r || def > awb_auto) + def = awb_auto; + cfg = pwc_auto_white_balance_cfg; + cfg.name = v4l2_ctrl_get_name(cfg.id); + cfg.def = def; + pdev->auto_white_balance = v4l2_ctrl_new_custom(hdl, &cfg, NULL); + /* check auto controls to avoid NULL deref in v4l2_ctrl_auto_cluster */ + if (!pdev->auto_white_balance) + return hdl->error; + + r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL, + PRESET_MANUAL_RED_GAIN_FORMATTER, &def); + if (r) + def = 127; + pdev->red_balance = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_RED_BALANCE, 0, 255, 1, def); + + r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL, + PRESET_MANUAL_BLUE_GAIN_FORMATTER, &def); + if (r) + def = 127; + pdev->blue_balance = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_BLUE_BALANCE, 0, 255, 1, def); + + v4l2_ctrl_auto_cluster(3, &pdev->auto_white_balance, awb_manual, true); + + /* autogain, gain */ + r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, AGC_MODE_FORMATTER, &def); + if (r || (def != 0 && def != 0xff)) + def = 0; + /* Note a register value if 0 means auto gain is on */ + pdev->autogain = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_AUTOGAIN, 0, 1, 1, def == 0); + if (!pdev->autogain) + return hdl->error; + + r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, PRESET_AGC_FORMATTER, &def); + if (r || def > 63) + def = 31; + pdev->gain = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_GAIN, 0, 63, 1, def); + + /* auto exposure, exposure */ + if (DEVICE_USE_CODEC2(pdev->type)) { + r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, SHUTTER_MODE_FORMATTER, + &def); + if (r || (def != 0 && def != 0xff)) + def = 0; + /* + * def = 0 auto, def = ff manual + * menu idx 0 = auto, idx 1 = manual + */ + pdev->exposure_auto = v4l2_ctrl_new_std_menu(hdl, + &pwc_ctrl_ops, + V4L2_CID_EXPOSURE_AUTO, + 1, 0, def != 0); + if (!pdev->exposure_auto) + return hdl->error; + + /* GET_LUM_CTL, PRESET_SHUTTER_FORMATTER is unreliable */ + r = pwc_get_u16_ctrl(pdev, GET_STATUS_CTL, + READ_SHUTTER_FORMATTER, &def); + if (r || def > 655) + def = 655; + pdev->exposure = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_EXPOSURE, 0, 655, 1, def); + /* CODEC2: separate auto gain & auto exposure */ + v4l2_ctrl_auto_cluster(2, &pdev->autogain, 0, true); + v4l2_ctrl_auto_cluster(2, &pdev->exposure_auto, + V4L2_EXPOSURE_MANUAL, true); + } else if (DEVICE_USE_CODEC3(pdev->type)) { + /* GET_LUM_CTL, PRESET_SHUTTER_FORMATTER is unreliable */ + r = pwc_get_u16_ctrl(pdev, GET_STATUS_CTL, + READ_SHUTTER_FORMATTER, &def); + if (r || def > 255) + def = 255; + pdev->exposure = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_EXPOSURE, 0, 255, 1, def); + /* CODEC3: both gain and exposure controlled by autogain */ + pdev->autogain_expo_cluster[0] = pdev->autogain; + pdev->autogain_expo_cluster[1] = pdev->gain; + pdev->autogain_expo_cluster[2] = pdev->exposure; + v4l2_ctrl_auto_cluster(3, pdev->autogain_expo_cluster, + 0, true); + } + + /* color / bw setting */ + r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL, COLOUR_MODE_FORMATTER, + &def); + if (r || (def != 0 && def != 0xff)) + def = 0xff; + /* def = 0 bw, def = ff color, menu idx 0 = color, idx 1 = bw */ + pdev->colorfx = v4l2_ctrl_new_std_menu(hdl, &pwc_ctrl_ops, + V4L2_CID_COLORFX, 1, 0, def == 0); + + /* autocontour, contour */ + r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, AUTO_CONTOUR_FORMATTER, &def); + if (r || (def != 0 && def != 0xff)) + def = 0; + cfg = pwc_autocontour_cfg; + cfg.def = def == 0; + pdev->autocontour = v4l2_ctrl_new_custom(hdl, &cfg, NULL); + if (!pdev->autocontour) + return hdl->error; + + r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, PRESET_CONTOUR_FORMATTER, &def); + if (r || def > 63) + def = 31; + cfg = pwc_contour_cfg; + cfg.def = def; + pdev->contour = v4l2_ctrl_new_custom(hdl, &cfg, NULL); + + v4l2_ctrl_auto_cluster(2, &pdev->autocontour, 0, false); + + /* backlight */ + r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, + BACK_LIGHT_COMPENSATION_FORMATTER, &def); + if (r || (def != 0 && def != 0xff)) + def = 0; + cfg = pwc_backlight_cfg; + cfg.name = v4l2_ctrl_get_name(cfg.id); + cfg.def = def == 0; + pdev->backlight = v4l2_ctrl_new_custom(hdl, &cfg, NULL); + + /* flikker rediction */ + r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, + FLICKERLESS_MODE_FORMATTER, &def); + if (r || (def != 0 && def != 0xff)) + def = 0; + cfg = pwc_flicker_cfg; + cfg.name = v4l2_ctrl_get_name(cfg.id); + cfg.def = def == 0; + pdev->flicker = v4l2_ctrl_new_custom(hdl, &cfg, NULL); + + /* Dynamic noise reduction */ + r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, + DYNAMIC_NOISE_CONTROL_FORMATTER, &def); + if (r || def > 3) + def = 2; + cfg = pwc_noise_reduction_cfg; + cfg.def = def; + pdev->noise_reduction = v4l2_ctrl_new_custom(hdl, &cfg, NULL); + + /* Save / Restore User / Factory Settings */ + pdev->save_user = v4l2_ctrl_new_custom(hdl, &pwc_save_user_cfg, NULL); + pdev->restore_user = v4l2_ctrl_new_custom(hdl, &pwc_restore_user_cfg, + NULL); + if (pdev->restore_user) + pdev->restore_user->flags |= V4L2_CTRL_FLAG_UPDATE; + pdev->restore_factory = v4l2_ctrl_new_custom(hdl, + &pwc_restore_factory_cfg, + NULL); + if (pdev->restore_factory) + pdev->restore_factory->flags |= V4L2_CTRL_FLAG_UPDATE; + + /* Auto White Balance speed & delay */ + r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL, + AWB_CONTROL_SPEED_FORMATTER, &def); + if (r || def < 1 || def > 32) + def = 1; + cfg = pwc_awb_speed_cfg; + cfg.def = def; + pdev->awb_speed = v4l2_ctrl_new_custom(hdl, &cfg, NULL); + + r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL, + AWB_CONTROL_DELAY_FORMATTER, &def); + if (r || def > 63) + def = 0; + cfg = pwc_awb_delay_cfg; + cfg.def = def; + pdev->awb_delay = v4l2_ctrl_new_custom(hdl, &cfg, NULL); + + if (!(pdev->features & FEATURE_MOTOR_PANTILT)) + return hdl->error; + + /* Motor pan / tilt / reset */ + pdev->motor_pan = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_PAN_RELATIVE, -4480, 4480, 64, 0); + if (!pdev->motor_pan) + return hdl->error; + pdev->motor_tilt = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_TILT_RELATIVE, -1920, 1920, 64, 0); + pdev->motor_pan_reset = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_PAN_RESET, 0, 0, 0, 0); + pdev->motor_tilt_reset = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_TILT_RESET, 0, 0, 0, 0); + v4l2_ctrl_cluster(4, &pdev->motor_pan); + + return hdl->error; +} + +static void pwc_vidioc_fill_fmt(struct v4l2_format *f, + int width, int height, u32 pixfmt) +{ + memset(&f->fmt.pix, 0, sizeof(struct v4l2_pix_format)); + f->fmt.pix.width = width; + f->fmt.pix.height = height; + f->fmt.pix.field = V4L2_FIELD_NONE; + f->fmt.pix.pixelformat = pixfmt; + f->fmt.pix.bytesperline = f->fmt.pix.width; + f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.width * 3 / 2; + f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB; + PWC_DEBUG_IOCTL("pwc_vidioc_fill_fmt() " + "width=%d, height=%d, bytesperline=%d, sizeimage=%d, pixelformat=%c%c%c%c\n", + f->fmt.pix.width, + f->fmt.pix.height, + f->fmt.pix.bytesperline, + f->fmt.pix.sizeimage, + (f->fmt.pix.pixelformat)&255, + (f->fmt.pix.pixelformat>>8)&255, + (f->fmt.pix.pixelformat>>16)&255, + (f->fmt.pix.pixelformat>>24)&255); +} + +/* ioctl(VIDIOC_TRY_FMT) */ +static int pwc_vidioc_try_fmt(struct pwc_device *pdev, struct v4l2_format *f) +{ + int size; + + if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { + PWC_DEBUG_IOCTL("Bad video type must be V4L2_BUF_TYPE_VIDEO_CAPTURE\n"); + return -EINVAL; + } + + switch (f->fmt.pix.pixelformat) { + case V4L2_PIX_FMT_YUV420: + break; + case V4L2_PIX_FMT_PWC1: + if (DEVICE_USE_CODEC23(pdev->type)) { + PWC_DEBUG_IOCTL("codec1 is only supported for old pwc webcam\n"); + return -EINVAL; + } + break; + case V4L2_PIX_FMT_PWC2: + if (DEVICE_USE_CODEC1(pdev->type)) { + PWC_DEBUG_IOCTL("codec23 is only supported for new pwc webcam\n"); + return -EINVAL; + } + break; + default: + PWC_DEBUG_IOCTL("Unsupported pixel format\n"); + return -EINVAL; + + } + + size = pwc_get_size(pdev, f->fmt.pix.width, f->fmt.pix.height); + pwc_vidioc_fill_fmt(f, + pwc_image_sizes[size][0], + pwc_image_sizes[size][1], + f->fmt.pix.pixelformat); + + return 0; +} + +/* ioctl(VIDIOC_SET_FMT) */ + +static int pwc_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) +{ + struct pwc_device *pdev = video_drvdata(file); + int ret, pixelformat, compression = 0; + + ret = pwc_vidioc_try_fmt(pdev, f); + if (ret < 0) + return ret; + + if (vb2_is_busy(&pdev->vb_queue)) + return -EBUSY; + + pixelformat = f->fmt.pix.pixelformat; + + PWC_DEBUG_IOCTL("Trying to set format to: width=%d height=%d fps=%d " + "format=%c%c%c%c\n", + f->fmt.pix.width, f->fmt.pix.height, pdev->vframes, + (pixelformat)&255, + (pixelformat>>8)&255, + (pixelformat>>16)&255, + (pixelformat>>24)&255); + + ret = pwc_set_video_mode(pdev, f->fmt.pix.width, f->fmt.pix.height, + pixelformat, 30, &compression, 0); + + PWC_DEBUG_IOCTL("pwc_set_video_mode(), return=%d\n", ret); + + pwc_vidioc_fill_fmt(f, pdev->width, pdev->height, pdev->pixfmt); + return ret; +} + +static int pwc_querycap(struct file *file, void *fh, struct v4l2_capability *cap) +{ + struct pwc_device *pdev = video_drvdata(file); + + strcpy(cap->driver, PWC_NAME); + strlcpy(cap->card, pdev->vdev.name, sizeof(cap->card)); + usb_make_path(pdev->udev, cap->bus_info, sizeof(cap->bus_info)); + cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING | + V4L2_CAP_READWRITE; + cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; + return 0; +} + +static int pwc_enum_input(struct file *file, void *fh, struct v4l2_input *i) +{ + if (i->index) /* Only one INPUT is supported */ + return -EINVAL; + + strlcpy(i->name, "Camera", sizeof(i->name)); + i->type = V4L2_INPUT_TYPE_CAMERA; + return 0; +} + +static int pwc_g_input(struct file *file, void *fh, unsigned int *i) +{ + *i = 0; + return 0; +} + +static int pwc_s_input(struct file *file, void *fh, unsigned int i) +{ + return i ? -EINVAL : 0; +} + +static int pwc_g_volatile_ctrl(struct v4l2_ctrl *ctrl) +{ + struct pwc_device *pdev = + container_of(ctrl->handler, struct pwc_device, ctrl_handler); + int ret = 0; + + switch (ctrl->id) { + case V4L2_CID_AUTO_WHITE_BALANCE: + if (pdev->color_bal_valid && + (pdev->auto_white_balance->val != awb_auto || + time_before(jiffies, + pdev->last_color_bal_update + HZ / 4))) { + pdev->red_balance->val = pdev->last_red_balance; + pdev->blue_balance->val = pdev->last_blue_balance; + break; + } + ret = pwc_get_u8_ctrl(pdev, GET_STATUS_CTL, + READ_RED_GAIN_FORMATTER, + &pdev->red_balance->val); + if (ret) + break; + ret = pwc_get_u8_ctrl(pdev, GET_STATUS_CTL, + READ_BLUE_GAIN_FORMATTER, + &pdev->blue_balance->val); + if (ret) + break; + pdev->last_red_balance = pdev->red_balance->val; + pdev->last_blue_balance = pdev->blue_balance->val; + pdev->last_color_bal_update = jiffies; + pdev->color_bal_valid = true; + break; + case V4L2_CID_AUTOGAIN: + if (pdev->gain_valid && time_before(jiffies, + pdev->last_gain_update + HZ / 4)) { + pdev->gain->val = pdev->last_gain; + break; + } + ret = pwc_get_u8_ctrl(pdev, GET_STATUS_CTL, + READ_AGC_FORMATTER, &pdev->gain->val); + if (ret) + break; + pdev->last_gain = pdev->gain->val; + pdev->last_gain_update = jiffies; + pdev->gain_valid = true; + if (!DEVICE_USE_CODEC3(pdev->type)) + break; + /* Fall through for CODEC3 where autogain also controls expo */ + case V4L2_CID_EXPOSURE_AUTO: + if (pdev->exposure_valid && time_before(jiffies, + pdev->last_exposure_update + HZ / 4)) { + pdev->exposure->val = pdev->last_exposure; + break; + } + ret = pwc_get_u16_ctrl(pdev, GET_STATUS_CTL, + READ_SHUTTER_FORMATTER, + &pdev->exposure->val); + if (ret) + break; + pdev->last_exposure = pdev->exposure->val; + pdev->last_exposure_update = jiffies; + pdev->exposure_valid = true; + break; + default: + ret = -EINVAL; + } + + if (ret) + PWC_ERROR("g_ctrl %s error %d\n", ctrl->name, ret); + + return ret; +} + +static int pwc_set_awb(struct pwc_device *pdev) +{ + int ret; + + if (pdev->auto_white_balance->is_new) { + ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL, + WB_MODE_FORMATTER, + pdev->auto_white_balance->val); + if (ret) + return ret; + + if (pdev->auto_white_balance->val != awb_manual) + pdev->color_bal_valid = false; /* Force cache update */ + + /* + * If this is a preset, update our red / blue balance values + * so that events get generated for the new preset values + */ + if (pdev->auto_white_balance->val == awb_indoor || + pdev->auto_white_balance->val == awb_outdoor || + pdev->auto_white_balance->val == awb_fl) + pwc_g_volatile_ctrl(pdev->auto_white_balance); + } + if (pdev->auto_white_balance->val != awb_manual) + return 0; + + if (pdev->red_balance->is_new) { + ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL, + PRESET_MANUAL_RED_GAIN_FORMATTER, + pdev->red_balance->val); + if (ret) + return ret; + } + + if (pdev->blue_balance->is_new) { + ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL, + PRESET_MANUAL_BLUE_GAIN_FORMATTER, + pdev->blue_balance->val); + if (ret) + return ret; + } + return 0; +} + +/* For CODEC2 models which have separate autogain and auto exposure */ +static int pwc_set_autogain(struct pwc_device *pdev) +{ + int ret; + + if (pdev->autogain->is_new) { + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + AGC_MODE_FORMATTER, + pdev->autogain->val ? 0 : 0xff); + if (ret) + return ret; + + if (pdev->autogain->val) + pdev->gain_valid = false; /* Force cache update */ + } + + if (pdev->autogain->val) + return 0; + + if (pdev->gain->is_new) { + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + PRESET_AGC_FORMATTER, + pdev->gain->val); + if (ret) + return ret; + } + return 0; +} + +/* For CODEC2 models which have separate autogain and auto exposure */ +static int pwc_set_exposure_auto(struct pwc_device *pdev) +{ + int ret; + int is_auto = pdev->exposure_auto->val == V4L2_EXPOSURE_AUTO; + + if (pdev->exposure_auto->is_new) { + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + SHUTTER_MODE_FORMATTER, + is_auto ? 0 : 0xff); + if (ret) + return ret; + + if (is_auto) + pdev->exposure_valid = false; /* Force cache update */ + } + + if (is_auto) + return 0; + + if (pdev->exposure->is_new) { + ret = pwc_set_u16_ctrl(pdev, SET_LUM_CTL, + PRESET_SHUTTER_FORMATTER, + pdev->exposure->val); + if (ret) + return ret; + } + return 0; +} + +/* For CODEC3 models which have autogain controlling both gain and exposure */ +static int pwc_set_autogain_expo(struct pwc_device *pdev) +{ + int ret; + + if (pdev->autogain->is_new) { + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + AGC_MODE_FORMATTER, + pdev->autogain->val ? 0 : 0xff); + if (ret) + return ret; + + if (pdev->autogain->val) { + pdev->gain_valid = false; /* Force cache update */ + pdev->exposure_valid = false; /* Force cache update */ + } + } + + if (pdev->autogain->val) + return 0; + + if (pdev->gain->is_new) { + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + PRESET_AGC_FORMATTER, + pdev->gain->val); + if (ret) + return ret; + } + + if (pdev->exposure->is_new) { + ret = pwc_set_u16_ctrl(pdev, SET_LUM_CTL, + PRESET_SHUTTER_FORMATTER, + pdev->exposure->val); + if (ret) + return ret; + } + return 0; +} + +static int pwc_set_motor(struct pwc_device *pdev) +{ + int ret; + + pdev->ctrl_buf[0] = 0; + if (pdev->motor_pan_reset->is_new) + pdev->ctrl_buf[0] |= 0x01; + if (pdev->motor_tilt_reset->is_new) + pdev->ctrl_buf[0] |= 0x02; + if (pdev->motor_pan_reset->is_new || pdev->motor_tilt_reset->is_new) { + ret = send_control_msg(pdev, SET_MPT_CTL, + PT_RESET_CONTROL_FORMATTER, + pdev->ctrl_buf, 1); + if (ret < 0) + return ret; + } + + memset(pdev->ctrl_buf, 0, 4); + if (pdev->motor_pan->is_new) { + pdev->ctrl_buf[0] = pdev->motor_pan->val & 0xFF; + pdev->ctrl_buf[1] = (pdev->motor_pan->val >> 8); + } + if (pdev->motor_tilt->is_new) { + pdev->ctrl_buf[2] = pdev->motor_tilt->val & 0xFF; + pdev->ctrl_buf[3] = (pdev->motor_tilt->val >> 8); + } + if (pdev->motor_pan->is_new || pdev->motor_tilt->is_new) { + ret = send_control_msg(pdev, SET_MPT_CTL, + PT_RELATIVE_CONTROL_FORMATTER, + pdev->ctrl_buf, 4); + if (ret < 0) + return ret; + } + + return 0; +} + +static int pwc_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct pwc_device *pdev = + container_of(ctrl->handler, struct pwc_device, ctrl_handler); + int ret = 0; + + switch (ctrl->id) { + case V4L2_CID_BRIGHTNESS: + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + BRIGHTNESS_FORMATTER, ctrl->val); + break; + case V4L2_CID_CONTRAST: + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + CONTRAST_FORMATTER, ctrl->val); + break; + case V4L2_CID_SATURATION: + ret = pwc_set_s8_ctrl(pdev, SET_CHROM_CTL, + pdev->saturation_fmt, ctrl->val); + break; + case V4L2_CID_GAMMA: + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + GAMMA_FORMATTER, ctrl->val); + break; + case V4L2_CID_AUTO_WHITE_BALANCE: + ret = pwc_set_awb(pdev); + break; + case V4L2_CID_AUTOGAIN: + if (DEVICE_USE_CODEC2(pdev->type)) + ret = pwc_set_autogain(pdev); + else if (DEVICE_USE_CODEC3(pdev->type)) + ret = pwc_set_autogain_expo(pdev); + else + ret = -EINVAL; + break; + case V4L2_CID_EXPOSURE_AUTO: + if (DEVICE_USE_CODEC2(pdev->type)) + ret = pwc_set_exposure_auto(pdev); + else + ret = -EINVAL; + break; + case V4L2_CID_COLORFX: + ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL, + COLOUR_MODE_FORMATTER, + ctrl->val ? 0 : 0xff); + break; + case PWC_CID_CUSTOM(autocontour): + if (pdev->autocontour->is_new) { + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + AUTO_CONTOUR_FORMATTER, + pdev->autocontour->val ? 0 : 0xff); + } + if (ret == 0 && pdev->contour->is_new) { + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + PRESET_CONTOUR_FORMATTER, + pdev->contour->val); + } + break; + case V4L2_CID_BACKLIGHT_COMPENSATION: + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + BACK_LIGHT_COMPENSATION_FORMATTER, + ctrl->val ? 0 : 0xff); + break; + case V4L2_CID_BAND_STOP_FILTER: + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + FLICKERLESS_MODE_FORMATTER, + ctrl->val ? 0 : 0xff); + break; + case PWC_CID_CUSTOM(noise_reduction): + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + DYNAMIC_NOISE_CONTROL_FORMATTER, + ctrl->val); + break; + case PWC_CID_CUSTOM(save_user): + ret = pwc_button_ctrl(pdev, SAVE_USER_DEFAULTS_FORMATTER); + break; + case PWC_CID_CUSTOM(restore_user): + ret = pwc_button_ctrl(pdev, RESTORE_USER_DEFAULTS_FORMATTER); + break; + case PWC_CID_CUSTOM(restore_factory): + ret = pwc_button_ctrl(pdev, + RESTORE_FACTORY_DEFAULTS_FORMATTER); + break; + case PWC_CID_CUSTOM(awb_speed): + ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL, + AWB_CONTROL_SPEED_FORMATTER, + ctrl->val); + break; + case PWC_CID_CUSTOM(awb_delay): + ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL, + AWB_CONTROL_DELAY_FORMATTER, + ctrl->val); + break; + case V4L2_CID_PAN_RELATIVE: + ret = pwc_set_motor(pdev); + break; + default: + ret = -EINVAL; + } + + if (ret) + PWC_ERROR("s_ctrl %s error %d\n", ctrl->name, ret); + + return ret; +} + +static int pwc_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *f) +{ + struct pwc_device *pdev = video_drvdata(file); + + /* We only support two format: the raw format, and YUV */ + switch (f->index) { + case 0: + /* RAW format */ + f->pixelformat = pdev->type <= 646 ? V4L2_PIX_FMT_PWC1 : V4L2_PIX_FMT_PWC2; + f->flags = V4L2_FMT_FLAG_COMPRESSED; + strlcpy(f->description, "Raw Philips Webcam", sizeof(f->description)); + break; + case 1: + f->pixelformat = V4L2_PIX_FMT_YUV420; + strlcpy(f->description, "4:2:0, planar, Y-Cb-Cr", sizeof(f->description)); + break; + default: + return -EINVAL; + } + return 0; +} + +static int pwc_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) +{ + struct pwc_device *pdev = video_drvdata(file); + + if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + PWC_DEBUG_IOCTL("ioctl(VIDIOC_G_FMT) return size %dx%d\n", + pdev->width, pdev->height); + pwc_vidioc_fill_fmt(f, pdev->width, pdev->height, pdev->pixfmt); + return 0; +} + +static int pwc_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) +{ + struct pwc_device *pdev = video_drvdata(file); + + return pwc_vidioc_try_fmt(pdev, f); +} + +static int pwc_enum_framesizes(struct file *file, void *fh, + struct v4l2_frmsizeenum *fsize) +{ + struct pwc_device *pdev = video_drvdata(file); + unsigned int i = 0, index = fsize->index; + + if (fsize->pixel_format == V4L2_PIX_FMT_YUV420 || + (fsize->pixel_format == V4L2_PIX_FMT_PWC1 && + DEVICE_USE_CODEC1(pdev->type)) || + (fsize->pixel_format == V4L2_PIX_FMT_PWC2 && + DEVICE_USE_CODEC23(pdev->type))) { + for (i = 0; i < PSZ_MAX; i++) { + if (!(pdev->image_mask & (1UL << i))) + continue; + if (!index--) { + fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; + fsize->discrete.width = pwc_image_sizes[i][0]; + fsize->discrete.height = pwc_image_sizes[i][1]; + return 0; + } + } + } + return -EINVAL; +} + +static int pwc_enum_frameintervals(struct file *file, void *fh, + struct v4l2_frmivalenum *fival) +{ + struct pwc_device *pdev = video_drvdata(file); + int size = -1; + unsigned int i; + + for (i = 0; i < PSZ_MAX; i++) { + if (pwc_image_sizes[i][0] == fival->width && + pwc_image_sizes[i][1] == fival->height) { + size = i; + break; + } + } + + /* TODO: Support raw format */ + if (size < 0 || fival->pixel_format != V4L2_PIX_FMT_YUV420) + return -EINVAL; + + i = pwc_get_fps(pdev, fival->index, size); + if (!i) + return -EINVAL; + + fival->type = V4L2_FRMIVAL_TYPE_DISCRETE; + fival->discrete.numerator = 1; + fival->discrete.denominator = i; + + return 0; +} + +static int pwc_g_parm(struct file *file, void *fh, + struct v4l2_streamparm *parm) +{ + struct pwc_device *pdev = video_drvdata(file); + + if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + memset(parm, 0, sizeof(*parm)); + + parm->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + parm->parm.capture.readbuffers = MIN_FRAMES; + parm->parm.capture.capability |= V4L2_CAP_TIMEPERFRAME; + parm->parm.capture.timeperframe.denominator = pdev->vframes; + parm->parm.capture.timeperframe.numerator = 1; + + return 0; +} + +static int pwc_s_parm(struct file *file, void *fh, + struct v4l2_streamparm *parm) +{ + struct pwc_device *pdev = video_drvdata(file); + int compression = 0; + int ret, fps; + + if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + /* If timeperframe == 0, then reset the framerate to the nominal value. + We pick a high framerate here, and let pwc_set_video_mode() figure + out the best match. */ + if (parm->parm.capture.timeperframe.numerator == 0 || + parm->parm.capture.timeperframe.denominator == 0) + fps = 30; + else + fps = parm->parm.capture.timeperframe.denominator / + parm->parm.capture.timeperframe.numerator; + + if (vb2_is_busy(&pdev->vb_queue)) + return -EBUSY; + + ret = pwc_set_video_mode(pdev, pdev->width, pdev->height, pdev->pixfmt, + fps, &compression, 0); + + pwc_g_parm(file, fh, parm); + + return ret; +} + +const struct v4l2_ioctl_ops pwc_ioctl_ops = { + .vidioc_querycap = pwc_querycap, + .vidioc_enum_input = pwc_enum_input, + .vidioc_g_input = pwc_g_input, + .vidioc_s_input = pwc_s_input, + .vidioc_enum_fmt_vid_cap = pwc_enum_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = pwc_g_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = pwc_s_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = pwc_try_fmt_vid_cap, + .vidioc_reqbufs = vb2_ioctl_reqbufs, + .vidioc_querybuf = vb2_ioctl_querybuf, + .vidioc_qbuf = vb2_ioctl_qbuf, + .vidioc_dqbuf = vb2_ioctl_dqbuf, + .vidioc_streamon = vb2_ioctl_streamon, + .vidioc_streamoff = vb2_ioctl_streamoff, + .vidioc_log_status = v4l2_ctrl_log_status, + .vidioc_enum_framesizes = pwc_enum_framesizes, + .vidioc_enum_frameintervals = pwc_enum_frameintervals, + .vidioc_g_parm = pwc_g_parm, + .vidioc_s_parm = pwc_s_parm, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; |