diff options
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 0000000..545e9bb --- /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, +}; |
