diff options
Diffstat (limited to 'drivers/media/video/cpia2/cpia2_v4l.c')
| -rw-r--r-- | drivers/media/video/cpia2/cpia2_v4l.c | 850 |
1 files changed, 261 insertions, 589 deletions
diff --git a/drivers/media/video/cpia2/cpia2_v4l.c b/drivers/media/video/cpia2/cpia2_v4l.c index 077eb1db80a..55e92902a76 100644 --- a/drivers/media/video/cpia2/cpia2_v4l.c +++ b/drivers/media/video/cpia2/cpia2_v4l.c @@ -39,15 +39,15 @@ #include <linux/videodev2.h> #include <linux/stringify.h> #include <media/v4l2-ioctl.h> +#include <media/v4l2-event.h> #include "cpia2.h" -#include "cpia2dev.h" static int video_nr = -1; module_param(video_nr, int, 0); -MODULE_PARM_DESC(video_nr,"video device to register (0=/dev/video0, etc)"); +MODULE_PARM_DESC(video_nr, "video device to register (0=/dev/video0, etc)"); -static int buffer_size = 68*1024; +static int buffer_size = 68 * 1024; module_param(buffer_size, int, 0); MODULE_PARM_DESC(buffer_size, "Size for each frame buffer in bytes (default 68k)"); @@ -62,18 +62,10 @@ MODULE_PARM_DESC(alternate, "USB Alternate (" __stringify(USBIF_ISO_1) "-" __stringify(USBIF_ISO_6) ", default " __stringify(DEFAULT_ALT) ")"); -static int flicker_freq = 60; -module_param(flicker_freq, int, 0); -MODULE_PARM_DESC(flicker_freq, "Flicker frequency (" __stringify(50) "or" - __stringify(60) ", default " - __stringify(60) ")"); - -static int flicker_mode = NEVER_FLICKER; +static int flicker_mode; module_param(flicker_mode, int, 0); -MODULE_PARM_DESC(flicker_mode, - "Flicker supression (" __stringify(NEVER_FLICKER) "or" - __stringify(ANTI_FLICKER_ON) ", default " - __stringify(NEVER_FLICKER) ")"); +MODULE_PARM_DESC(flicker_mode, "Flicker frequency (0 (disabled), " __stringify(50) " or " + __stringify(60) ", default 0)"); MODULE_AUTHOR("Steve Miller (STMicroelectronics) <steve.miller@st.com>"); MODULE_DESCRIPTION("V4L-driver for STMicroelectronics CPiA2 based cameras"); @@ -82,153 +74,7 @@ MODULE_LICENSE("GPL"); MODULE_VERSION(CPIA_VERSION); #define ABOUT "V4L-Driver for Vision CPiA2 based cameras" - -struct control_menu_info { - int value; - char name[32]; -}; - -static struct control_menu_info framerate_controls[] = -{ - { CPIA2_VP_FRAMERATE_6_25, "6.25 fps" }, - { CPIA2_VP_FRAMERATE_7_5, "7.5 fps" }, - { CPIA2_VP_FRAMERATE_12_5, "12.5 fps" }, - { CPIA2_VP_FRAMERATE_15, "15 fps" }, - { CPIA2_VP_FRAMERATE_25, "25 fps" }, - { CPIA2_VP_FRAMERATE_30, "30 fps" }, -}; -#define NUM_FRAMERATE_CONTROLS (ARRAY_SIZE(framerate_controls)) - -static struct control_menu_info flicker_controls[] = -{ - { NEVER_FLICKER, "Off" }, - { FLICKER_50, "50 Hz" }, - { FLICKER_60, "60 Hz" }, -}; -#define NUM_FLICKER_CONTROLS (ARRAY_SIZE(flicker_controls)) - -static struct control_menu_info lights_controls[] = -{ - { 0, "Off" }, - { 64, "Top" }, - { 128, "Bottom" }, - { 192, "Both" }, -}; -#define NUM_LIGHTS_CONTROLS (ARRAY_SIZE(lights_controls)) -#define GPIO_LIGHTS_MASK 192 - -static struct v4l2_queryctrl controls[] = { - { - .id = V4L2_CID_BRIGHTNESS, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Brightness", - .minimum = 0, - .maximum = 255, - .step = 1, - .default_value = DEFAULT_BRIGHTNESS, - }, - { - .id = V4L2_CID_CONTRAST, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Contrast", - .minimum = 0, - .maximum = 255, - .step = 1, - .default_value = DEFAULT_CONTRAST, - }, - { - .id = V4L2_CID_SATURATION, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Saturation", - .minimum = 0, - .maximum = 255, - .step = 1, - .default_value = DEFAULT_SATURATION, - }, - { - .id = V4L2_CID_HFLIP, - .type = V4L2_CTRL_TYPE_BOOLEAN, - .name = "Mirror Horizontally", - .minimum = 0, - .maximum = 1, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_VFLIP, - .type = V4L2_CTRL_TYPE_BOOLEAN, - .name = "Flip Vertically", - .minimum = 0, - .maximum = 1, - .step = 1, - .default_value = 0, - }, - { - .id = CPIA2_CID_TARGET_KB, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Target KB", - .minimum = 0, - .maximum = 255, - .step = 1, - .default_value = DEFAULT_TARGET_KB, - }, - { - .id = CPIA2_CID_GPIO, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "GPIO", - .minimum = 0, - .maximum = 255, - .step = 1, - .default_value = 0, - }, - { - .id = CPIA2_CID_FLICKER_MODE, - .type = V4L2_CTRL_TYPE_MENU, - .name = "Flicker Reduction", - .minimum = 0, - .maximum = NUM_FLICKER_CONTROLS-1, - .step = 1, - .default_value = 0, - }, - { - .id = CPIA2_CID_FRAMERATE, - .type = V4L2_CTRL_TYPE_MENU, - .name = "Framerate", - .minimum = 0, - .maximum = NUM_FRAMERATE_CONTROLS-1, - .step = 1, - .default_value = NUM_FRAMERATE_CONTROLS-1, - }, - { - .id = CPIA2_CID_USB_ALT, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "USB Alternate", - .minimum = USBIF_ISO_1, - .maximum = USBIF_ISO_6, - .step = 1, - .default_value = DEFAULT_ALT, - }, - { - .id = CPIA2_CID_LIGHTS, - .type = V4L2_CTRL_TYPE_MENU, - .name = "Lights", - .minimum = 0, - .maximum = NUM_LIGHTS_CONTROLS-1, - .step = 1, - .default_value = 0, - }, - { - .id = CPIA2_CID_RESET_CAMERA, - .type = V4L2_CTRL_TYPE_BUTTON, - .name = "Reset Camera", - .minimum = 0, - .maximum = 0, - .step = 0, - .default_value = 0, - }, -}; -#define NUM_CONTROLS (ARRAY_SIZE(controls)) - +#define CPIA2_CID_USB_ALT (V4L2_CID_USER_BASE | 0xf000) /****************************************************************************** * @@ -238,38 +84,27 @@ static struct v4l2_queryctrl controls[] = { static int cpia2_open(struct file *file) { struct camera_data *cam = video_drvdata(file); - struct cpia2_fh *fh; - - if (!cam) { - ERR("Internal error, camera_data not found!\n"); - return -ENODEV; - } + int retval = v4l2_fh_open(file); - if (!cam->present) - return -ENODEV; + if (retval) + return retval; - if (cam->open_count == 0) { - if (cpia2_allocate_buffers(cam)) + if (v4l2_fh_is_singular_file(file)) { + if (cpia2_allocate_buffers(cam)) { + v4l2_fh_release(file); return -ENOMEM; + } /* reset the camera */ - if (cpia2_reset_camera(cam) < 0) + if (cpia2_reset_camera(cam) < 0) { + v4l2_fh_release(file); return -EIO; + } cam->APP_len = 0; cam->COM_len = 0; } - fh = kmalloc(sizeof(*fh), GFP_KERNEL); - if (!fh) - return -ENOMEM; - file->private_data = fh; - fh->prio = V4L2_PRIORITY_UNSET; - v4l2_prio_open(&cam->prio, &fh->prio); - fh->mmapped = 0; - - ++cam->open_count; - cpia2_dbg_dump_registers(cam); return 0; } @@ -283,37 +118,22 @@ static int cpia2_close(struct file *file) { struct video_device *dev = video_devdata(file); struct camera_data *cam = video_get_drvdata(dev); - struct cpia2_fh *fh = file->private_data; - if (cam->present && - (cam->open_count == 1 || fh->prio == V4L2_PRIORITY_RECORD)) { + if (video_is_registered(&cam->vdev) && v4l2_fh_is_singular_file(file)) { cpia2_usb_stream_stop(cam); - if (cam->open_count == 1) { - /* save camera state for later open */ - cpia2_save_camera_state(cam); + /* save camera state for later open */ + cpia2_save_camera_state(cam); - cpia2_set_low_power(cam); - cpia2_free_buffers(cam); - } + cpia2_set_low_power(cam); + cpia2_free_buffers(cam); } - if (fh->mmapped) + if (cam->stream_fh == file->private_data) { + cam->stream_fh = NULL; cam->mmapped = 0; - v4l2_prio_close(&cam->prio, fh->prio); - file->private_data = NULL; - kfree(fh); - - if (--cam->open_count == 0) { - cpia2_free_buffers(cam); - if (!cam->present) { - video_unregister_device(dev); - kfree(cam); - return 0; - } } - - return 0; + return v4l2_fh_release(file); } /****************************************************************************** @@ -327,16 +147,9 @@ static ssize_t cpia2_v4l_read(struct file *file, char __user *buf, size_t count, struct camera_data *cam = video_drvdata(file); int noblock = file->f_flags&O_NONBLOCK; - struct cpia2_fh *fh = file->private_data; - if(!cam) return -EINVAL; - /* Priority check */ - if(fh->prio != V4L2_PRIORITY_RECORD) { - return -EBUSY; - } - return cpia2_read(cam, buf, count, noblock); } @@ -349,15 +162,6 @@ static ssize_t cpia2_v4l_read(struct file *file, char __user *buf, size_t count, static unsigned int cpia2_v4l_poll(struct file *filp, struct poll_table_struct *wait) { struct camera_data *cam = video_drvdata(filp); - struct cpia2_fh *fh = filp->private_data; - - if(!cam) - return POLLERR; - - /* Priority check */ - if(fh->prio != V4L2_PRIORITY_RECORD) { - return POLLERR; - } return cpia2_poll(cam, filp, wait); } @@ -384,36 +188,13 @@ static int sync(struct camera_data *cam, int frame_nr) mutex_lock(&cam->v4l2_lock); if (signal_pending(current)) return -ERESTARTSYS; - if(!cam->present) + if (!video_is_registered(&cam->vdev)) return -ENOTTY; } } /****************************************************************************** * - * ioctl_set_gpio - * - *****************************************************************************/ - -static long cpia2_default(struct file *file, void *fh, bool valid_prio, - int cmd, void *arg) -{ - struct camera_data *cam = video_drvdata(file); - __u32 gpio_val; - - if (cmd != CPIA2_CID_GPIO) - return -EINVAL; - - gpio_val = *(__u32*) arg; - - if (gpio_val &~ 0xFFU) - return -EINVAL; - - return cpia2_set_gpio(cam, (unsigned char)gpio_val); -} - -/****************************************************************************** - * * ioctl_querycap * * V4L2 device capabilities @@ -465,9 +246,11 @@ static int cpia2_querycap(struct file *file, void *fh, struct v4l2_capability *v if (usb_make_path(cam->dev, vc->bus_info, sizeof(vc->bus_info)) <0) memset(vc->bus_info,0, sizeof(vc->bus_info)); - vc->capabilities = V4L2_CAP_VIDEO_CAPTURE | + vc->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; + vc->capabilities = vc->device_caps | + V4L2_CAP_DEVICE_CAPS; return 0; } @@ -610,22 +393,12 @@ static int cpia2_s_fmt_vid_cap(struct file *file, void *_fh, struct v4l2_format *f) { struct camera_data *cam = video_drvdata(file); - struct cpia2_fh *fh = _fh; int err, frame; - err = v4l2_prio_check(&cam->prio, fh->prio); - if (err) - return err; err = cpia2_try_fmt_vid_cap(file, _fh, f); if(err != 0) return err; - /* Ensure that only this process can change the format. */ - err = v4l2_prio_change(&cam->prio, &fh->prio, V4L2_PRIORITY_RECORD); - if(err != 0) { - return err; - } - cam->pixelformat = f->fmt.pix.pixelformat; /* NOTE: This should be set to 1 for MJPEG, but some apps don't handle @@ -713,240 +486,126 @@ static int cpia2_cropcap(struct file *file, void *fh, struct v4l2_cropcap *c) return 0; } -/****************************************************************************** - * - * ioctl_queryctrl - * - * V4L2 query possible control variables - * - *****************************************************************************/ +struct framerate_info { + int value; + struct v4l2_fract period; +}; -static int cpia2_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *c) +static const struct framerate_info framerate_controls[] = { + { CPIA2_VP_FRAMERATE_6_25, { 4, 25 } }, + { CPIA2_VP_FRAMERATE_7_5, { 2, 15 } }, + { CPIA2_VP_FRAMERATE_12_5, { 2, 25 } }, + { CPIA2_VP_FRAMERATE_15, { 1, 15 } }, + { CPIA2_VP_FRAMERATE_25, { 1, 25 } }, + { CPIA2_VP_FRAMERATE_30, { 1, 30 } }, +}; + +static int cpia2_g_parm(struct file *file, void *fh, struct v4l2_streamparm *p) { struct camera_data *cam = video_drvdata(file); + struct v4l2_captureparm *cap = &p->parm.capture; int i; - for(i=0; i<NUM_CONTROLS; ++i) { - if(c->id == controls[i].id) { - memcpy(c, controls+i, sizeof(*c)); - break; - } - } - - if(i == NUM_CONTROLS) + if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; - /* Some devices have additional limitations */ - switch(c->id) { - case V4L2_CID_BRIGHTNESS: - /*** - * Don't let the register be set to zero - bug in VP4 - * flash of full brightness - ***/ - if (cam->params.pnp_id.device_type == DEVICE_STV_672) - c->minimum = 1; - break; - case V4L2_CID_VFLIP: - // VP5 Only - if(cam->params.pnp_id.device_type == DEVICE_STV_672) - c->flags |= V4L2_CTRL_FLAG_DISABLED; - break; - case CPIA2_CID_FRAMERATE: - if(cam->params.pnp_id.device_type == DEVICE_STV_672 && - cam->params.version.sensor_flags==CPIA2_VP_SENSOR_FLAGS_500){ - // Maximum 15fps - for(i=0; i<c->maximum; ++i) { - if(framerate_controls[i].value == - CPIA2_VP_FRAMERATE_15) { - c->maximum = i; - c->default_value = i; - } - } + cap->capability = V4L2_CAP_TIMEPERFRAME; + cap->readbuffers = cam->num_frames; + for (i = 0; i < ARRAY_SIZE(framerate_controls); i++) + if (cam->params.vp_params.frame_rate == framerate_controls[i].value) { + cap->timeperframe = framerate_controls[i].period; + break; } - break; - case CPIA2_CID_FLICKER_MODE: - // Flicker control only valid for 672. - if(cam->params.pnp_id.device_type != DEVICE_STV_672) - c->flags |= V4L2_CTRL_FLAG_DISABLED; - break; - case CPIA2_CID_LIGHTS: - // Light control only valid for the QX5 Microscope. - if(cam->params.pnp_id.product != 0x151) - c->flags |= V4L2_CTRL_FLAG_DISABLED; - break; - default: - break; - } - return 0; } -/****************************************************************************** - * - * ioctl_querymenu - * - * V4L2 query possible control variables - * - *****************************************************************************/ - -static int cpia2_querymenu(struct file *file, void *fh, struct v4l2_querymenu *m) +static int cpia2_s_parm(struct file *file, void *fh, struct v4l2_streamparm *p) { struct camera_data *cam = video_drvdata(file); + struct v4l2_captureparm *cap = &p->parm.capture; + struct v4l2_fract tpf = cap->timeperframe; + int max = ARRAY_SIZE(framerate_controls) - 1; + int ret; + int i; - switch(m->id) { - case CPIA2_CID_FLICKER_MODE: - if (m->index >= NUM_FLICKER_CONTROLS) - return -EINVAL; + ret = cpia2_g_parm(file, fh, p); + if (ret || !tpf.denominator || !tpf.numerator) + return ret; + + /* Maximum 15 fps for this model */ + if (cam->params.pnp_id.device_type == DEVICE_STV_672 && + cam->params.version.sensor_flags == CPIA2_VP_SENSOR_FLAGS_500) + max -= 2; + for (i = 0; i <= max; i++) { + struct v4l2_fract f1 = tpf; + struct v4l2_fract f2 = framerate_controls[i].period; + + f1.numerator *= f2.denominator; + f2.numerator *= f1.denominator; + if (f1.numerator >= f2.numerator) + break; + } + if (i > max) + i = max; + cap->timeperframe = framerate_controls[i].period; + return cpia2_set_fps(cam, framerate_controls[i].value); +} - strcpy(m->name, flicker_controls[m->index].name); - break; - case CPIA2_CID_FRAMERATE: - { - int maximum = NUM_FRAMERATE_CONTROLS - 1; - if(cam->params.pnp_id.device_type == DEVICE_STV_672 && - cam->params.version.sensor_flags==CPIA2_VP_SENSOR_FLAGS_500){ - // Maximum 15fps - int i; - for(i=0; i<maximum; ++i) { - if(framerate_controls[i].value == - CPIA2_VP_FRAMERATE_15) - maximum = i; - } - } - if (m->index > maximum) - return -EINVAL; +static const struct { + u32 width; + u32 height; +} cpia2_framesizes[] = { + { 640, 480 }, + { 352, 288 }, + { 320, 240 }, + { 288, 216 }, + { 256, 192 }, + { 224, 168 }, + { 192, 144 }, + { 176, 144 }, +}; - strcpy(m->name, framerate_controls[m->index].name); - break; - } - case CPIA2_CID_LIGHTS: - if (m->index >= NUM_LIGHTS_CONTROLS) - return -EINVAL; +static int cpia2_enum_framesizes(struct file *file, void *fh, + struct v4l2_frmsizeenum *fsize) +{ - strcpy(m->name, lights_controls[m->index].name); - break; - default: + if (fsize->pixel_format != V4L2_PIX_FMT_MJPEG && + fsize->pixel_format != V4L2_PIX_FMT_JPEG) return -EINVAL; - } + if (fsize->index >= ARRAY_SIZE(cpia2_framesizes)) + return -EINVAL; + fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; + fsize->discrete.width = cpia2_framesizes[fsize->index].width; + fsize->discrete.height = cpia2_framesizes[fsize->index].height; return 0; } -/****************************************************************************** - * - * ioctl_g_ctrl - * - * V4L2 get the value of a control variable - * - *****************************************************************************/ - -static int cpia2_g_ctrl(struct file *file, void *fh, struct v4l2_control *c) +static int cpia2_enum_frameintervals(struct file *file, void *fh, + struct v4l2_frmivalenum *fival) { struct camera_data *cam = video_drvdata(file); + int max = ARRAY_SIZE(framerate_controls) - 1; + int i; - switch(c->id) { - case V4L2_CID_BRIGHTNESS: - cpia2_do_command(cam, CPIA2_CMD_GET_VP_BRIGHTNESS, - TRANSFER_READ, 0); - c->value = cam->params.color_params.brightness; - break; - case V4L2_CID_CONTRAST: - cpia2_do_command(cam, CPIA2_CMD_GET_CONTRAST, - TRANSFER_READ, 0); - c->value = cam->params.color_params.contrast; - break; - case V4L2_CID_SATURATION: - cpia2_do_command(cam, CPIA2_CMD_GET_VP_SATURATION, - TRANSFER_READ, 0); - c->value = cam->params.color_params.saturation; - break; - case V4L2_CID_HFLIP: - cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, - TRANSFER_READ, 0); - c->value = (cam->params.vp_params.user_effects & - CPIA2_VP_USER_EFFECTS_MIRROR) != 0; - break; - case V4L2_CID_VFLIP: - cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, - TRANSFER_READ, 0); - c->value = (cam->params.vp_params.user_effects & - CPIA2_VP_USER_EFFECTS_FLIP) != 0; - break; - case CPIA2_CID_TARGET_KB: - c->value = cam->params.vc_params.target_kb; - break; - case CPIA2_CID_GPIO: - cpia2_do_command(cam, CPIA2_CMD_GET_VP_GPIO_DATA, - TRANSFER_READ, 0); - c->value = cam->params.vp_params.gpio_data; - break; - case CPIA2_CID_FLICKER_MODE: - { - int i, mode; - cpia2_do_command(cam, CPIA2_CMD_GET_FLICKER_MODES, - TRANSFER_READ, 0); - if(cam->params.flicker_control.cam_register & - CPIA2_VP_FLICKER_MODES_NEVER_FLICKER) { - mode = NEVER_FLICKER; - } else { - if(cam->params.flicker_control.cam_register & - CPIA2_VP_FLICKER_MODES_50HZ) { - mode = FLICKER_50; - } else { - mode = FLICKER_60; - } - } - for(i=0; i<NUM_FLICKER_CONTROLS; i++) { - if(flicker_controls[i].value == mode) { - c->value = i; - break; - } - } - if(i == NUM_FLICKER_CONTROLS) - return -EINVAL; - break; - } - case CPIA2_CID_FRAMERATE: - { - int maximum = NUM_FRAMERATE_CONTROLS - 1; - int i; - for(i=0; i<= maximum; i++) { - if(cam->params.vp_params.frame_rate == - framerate_controls[i].value) - break; - } - if(i > maximum) - return -EINVAL; - c->value = i; - break; - } - case CPIA2_CID_USB_ALT: - c->value = cam->params.camera_state.stream_mode; - break; - case CPIA2_CID_LIGHTS: - { - int i; - cpia2_do_command(cam, CPIA2_CMD_GET_VP_GPIO_DATA, - TRANSFER_READ, 0); - for(i=0; i<NUM_LIGHTS_CONTROLS; i++) { - if((cam->params.vp_params.gpio_data&GPIO_LIGHTS_MASK) == - lights_controls[i].value) { - break; - } - } - if(i == NUM_LIGHTS_CONTROLS) - return -EINVAL; - c->value = i; - break; - } - case CPIA2_CID_RESET_CAMERA: + if (fival->pixel_format != V4L2_PIX_FMT_MJPEG && + fival->pixel_format != V4L2_PIX_FMT_JPEG) return -EINVAL; - default: - return -EINVAL; - } - - DBG("Get control id:%d, value:%d\n", c->id, c->value); + /* Maximum 15 fps for this model */ + if (cam->params.pnp_id.device_type == DEVICE_STV_672 && + cam->params.version.sensor_flags == CPIA2_VP_SENSOR_FLAGS_500) + max -= 2; + if (fival->index > max) + return -EINVAL; + for (i = 0; i < ARRAY_SIZE(cpia2_framesizes); i++) + if (fival->width == cpia2_framesizes[i].width && + fival->height == cpia2_framesizes[i].height) + break; + if (i == ARRAY_SIZE(cpia2_framesizes)) + return -EINVAL; + fival->type = V4L2_FRMIVAL_TYPE_DISCRETE; + fival->discrete = framerate_controls[fival->index].period; return 0; } @@ -958,72 +617,54 @@ static int cpia2_g_ctrl(struct file *file, void *fh, struct v4l2_control *c) * *****************************************************************************/ -static int cpia2_s_ctrl(struct file *file, void *fh, struct v4l2_control *c) +static int cpia2_s_ctrl(struct v4l2_ctrl *ctrl) { - struct camera_data *cam = video_drvdata(file); - int i; - int retval = 0; + struct camera_data *cam = + container_of(ctrl->handler, struct camera_data, hdl); + static const int flicker_table[] = { + NEVER_FLICKER, + FLICKER_50, + FLICKER_60, + }; - DBG("Set control id:%d, value:%d\n", c->id, c->value); - - /* Check that the value is in range */ - for(i=0; i<NUM_CONTROLS; i++) { - if(c->id == controls[i].id) { - if(c->value < controls[i].minimum || - c->value > controls[i].maximum) { - return -EINVAL; - } - break; - } - } - if(i == NUM_CONTROLS) - return -EINVAL; + DBG("Set control id:%d, value:%d\n", ctrl->id, ctrl->val); - switch(c->id) { + switch (ctrl->id) { case V4L2_CID_BRIGHTNESS: - cpia2_set_brightness(cam, c->value); + cpia2_set_brightness(cam, ctrl->val); break; case V4L2_CID_CONTRAST: - cpia2_set_contrast(cam, c->value); + cpia2_set_contrast(cam, ctrl->val); break; case V4L2_CID_SATURATION: - cpia2_set_saturation(cam, c->value); + cpia2_set_saturation(cam, ctrl->val); break; case V4L2_CID_HFLIP: - cpia2_set_property_mirror(cam, c->value); + cpia2_set_property_mirror(cam, ctrl->val); break; case V4L2_CID_VFLIP: - cpia2_set_property_flip(cam, c->value); + cpia2_set_property_flip(cam, ctrl->val); break; - case CPIA2_CID_TARGET_KB: - retval = cpia2_set_target_kb(cam, c->value); + case V4L2_CID_POWER_LINE_FREQUENCY: + return cpia2_set_flicker_mode(cam, flicker_table[ctrl->val]); + case V4L2_CID_ILLUMINATORS_1: + return cpia2_set_gpio(cam, (cam->top_light->val << 6) | + (cam->bottom_light->val << 7)); + case V4L2_CID_JPEG_ACTIVE_MARKER: + cam->params.compression.inhibit_htables = + !(ctrl->val & V4L2_JPEG_ACTIVE_MARKER_DHT); break; - case CPIA2_CID_GPIO: - retval = cpia2_set_gpio(cam, c->value); - break; - case CPIA2_CID_FLICKER_MODE: - retval = cpia2_set_flicker_mode(cam, - flicker_controls[c->value].value); - break; - case CPIA2_CID_FRAMERATE: - retval = cpia2_set_fps(cam, framerate_controls[c->value].value); + case V4L2_CID_JPEG_COMPRESSION_QUALITY: + cam->params.vc_params.quality = ctrl->val; break; case CPIA2_CID_USB_ALT: - retval = cpia2_usb_change_streaming_alternate(cam, c->value); - break; - case CPIA2_CID_LIGHTS: - retval = cpia2_set_gpio(cam, lights_controls[c->value].value); - break; - case CPIA2_CID_RESET_CAMERA: - cpia2_usb_stream_pause(cam); - cpia2_reset_camera(cam); - cpia2_usb_stream_resume(cam); + cam->params.camera_state.stream_mode = ctrl->val; break; default: - retval = -EINVAL; + return -EINVAL; } - return retval; + return 0; } /****************************************************************************** @@ -1084,6 +725,8 @@ static int cpia2_s_jpegcomp(struct file *file, void *fh, struct v4l2_jpegcompres cam->params.compression.inhibit_htables = !(parms->jpeg_markers & V4L2_JPEG_MARKER_DHT); + parms->jpeg_markers &= V4L2_JPEG_MARKER_DQT | V4L2_JPEG_MARKER_DRI | + V4L2_JPEG_MARKER_DHT; if(parms->APP_len != 0) { if(parms->APP_len > 0 && @@ -1270,12 +913,12 @@ static int cpia2_dqbuf(struct file *file, void *fh, struct v4l2_buffer *buf) struct framebuf *cb=cam->curbuff; mutex_unlock(&cam->v4l2_lock); wait_event_interruptible(cam->wq_stream, - !cam->present || + !video_is_registered(&cam->vdev) || (cb=cam->curbuff)->status == FRAME_READY); mutex_lock(&cam->v4l2_lock); if (signal_pending(current)) return -ERESTARTSYS; - if(!cam->present) + if (!video_is_registered(&cam->vdev)) return -ENOTTY; frame = cb->num; } @@ -1299,56 +942,39 @@ static int cpia2_dqbuf(struct file *file, void *fh, struct v4l2_buffer *buf) return 0; } -static int cpia2_g_priority(struct file *file, void *_fh, enum v4l2_priority *p) -{ - struct cpia2_fh *fh = _fh; - - *p = fh->prio; - return 0; -} - -static int cpia2_s_priority(struct file *file, void *_fh, enum v4l2_priority prio) -{ - struct camera_data *cam = video_drvdata(file); - struct cpia2_fh *fh = _fh; - - if (cam->streaming && prio != fh->prio && - fh->prio == V4L2_PRIORITY_RECORD) - /* Can't drop record priority while streaming */ - return -EBUSY; - - if (prio == V4L2_PRIORITY_RECORD && prio != fh->prio && - v4l2_prio_max(&cam->prio) == V4L2_PRIORITY_RECORD) - /* Only one program can record at a time */ - return -EBUSY; - return v4l2_prio_change(&cam->prio, &fh->prio, prio); -} - static int cpia2_streamon(struct file *file, void *fh, enum v4l2_buf_type type) { struct camera_data *cam = video_drvdata(file); + int ret = -EINVAL; DBG("VIDIOC_STREAMON, streaming=%d\n", cam->streaming); if (!cam->mmapped || type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; - if (!cam->streaming) - return cpia2_usb_stream_start(cam, + if (!cam->streaming) { + ret = cpia2_usb_stream_start(cam, cam->params.camera_state.stream_mode); - return -EINVAL; + if (!ret) + v4l2_ctrl_grab(cam->usb_alt, true); + } + return ret; } static int cpia2_streamoff(struct file *file, void *fh, enum v4l2_buf_type type) { struct camera_data *cam = video_drvdata(file); + int ret = -EINVAL; DBG("VIDIOC_STREAMOFF, streaming=%d\n", cam->streaming); if (!cam->mmapped || type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; - if (cam->streaming) - return cpia2_usb_stream_stop(cam); - return -EINVAL; + if (cam->streaming) { + ret = cpia2_usb_stream_stop(cam); + if (!ret) + v4l2_ctrl_grab(cam->usb_alt, false); + } + return ret; } /****************************************************************************** @@ -1361,16 +987,10 @@ static int cpia2_mmap(struct file *file, struct vm_area_struct *area) struct camera_data *cam = video_drvdata(file); int retval; - /* Priority check */ - struct cpia2_fh *fh = file->private_data; - if(fh->prio != V4L2_PRIORITY_RECORD) { - return -EBUSY; - } - retval = cpia2_remap_buffer(cam, area); if(!retval) - fh->mmapped = 1; + cam->stream_fh = file->private_data; return retval; } @@ -1388,15 +1008,13 @@ static void reset_camera_struct_v4l(struct camera_data *cam) cam->frame_size = buffer_size; cam->num_frames = num_buffers; - /* FlickerModes */ + /* Flicker modes */ cam->params.flicker_control.flicker_mode_req = flicker_mode; - cam->params.flicker_control.mains_frequency = flicker_freq; - /* streamMode */ + /* stream modes */ cam->params.camera_state.stream_mode = alternate; cam->pixelformat = V4L2_PIX_FMT_JPEG; - v4l2_prio_init(&cam->prio); } static const struct v4l2_ioctl_ops cpia2_ioctl_ops = { @@ -1408,10 +1026,6 @@ static const struct v4l2_ioctl_ops cpia2_ioctl_ops = { .vidioc_g_fmt_vid_cap = cpia2_g_fmt_vid_cap, .vidioc_s_fmt_vid_cap = cpia2_s_fmt_vid_cap, .vidioc_try_fmt_vid_cap = cpia2_try_fmt_vid_cap, - .vidioc_queryctrl = cpia2_queryctrl, - .vidioc_querymenu = cpia2_querymenu, - .vidioc_g_ctrl = cpia2_g_ctrl, - .vidioc_s_ctrl = cpia2_s_ctrl, .vidioc_g_jpegcomp = cpia2_g_jpegcomp, .vidioc_s_jpegcomp = cpia2_s_jpegcomp, .vidioc_cropcap = cpia2_cropcap, @@ -1421,9 +1035,12 @@ static const struct v4l2_ioctl_ops cpia2_ioctl_ops = { .vidioc_dqbuf = cpia2_dqbuf, .vidioc_streamon = cpia2_streamon, .vidioc_streamoff = cpia2_streamoff, - .vidioc_g_priority = cpia2_g_priority, - .vidioc_s_priority = cpia2_s_priority, - .vidioc_default = cpia2_default, + .vidioc_s_parm = cpia2_s_parm, + .vidioc_g_parm = cpia2_g_parm, + .vidioc_enum_framesizes = cpia2_enum_framesizes, + .vidioc_enum_frameintervals = cpia2_enum_frameintervals, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, }; /*** @@ -1444,7 +1061,21 @@ static struct video_device cpia2_template = { .name = "CPiA2 Camera", .fops = &cpia2_fops, .ioctl_ops = &cpia2_ioctl_ops, - .release = video_device_release, + .release = video_device_release_empty, +}; + +void cpia2_camera_release(struct v4l2_device *v4l2_dev) +{ + struct camera_data *cam = + container_of(v4l2_dev, struct camera_data, v4l2_dev); + + v4l2_ctrl_handler_free(&cam->hdl); + v4l2_device_unregister(&cam->v4l2_dev); + kfree(cam); +} + +static const struct v4l2_ctrl_ops cpia2_ctrl_ops = { + .s_ctrl = cpia2_s_ctrl, }; /****************************************************************************** @@ -1454,20 +1085,78 @@ static struct video_device cpia2_template = { *****************************************************************************/ int cpia2_register_camera(struct camera_data *cam) { - cam->vdev = video_device_alloc(); - if(!cam->vdev) - return -ENOMEM; + struct v4l2_ctrl_handler *hdl = &cam->hdl; + struct v4l2_ctrl_config cpia2_usb_alt = { + .ops = &cpia2_ctrl_ops, + .id = CPIA2_CID_USB_ALT, + .name = "USB Alternate", + .type = V4L2_CTRL_TYPE_INTEGER, + .min = USBIF_ISO_1, + .max = USBIF_ISO_6, + .step = 1, + }; + int ret; + + v4l2_ctrl_handler_init(hdl, 12); + v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops, + V4L2_CID_BRIGHTNESS, + cam->params.pnp_id.device_type == DEVICE_STV_672 ? 1 : 0, + 255, 1, DEFAULT_BRIGHTNESS); + v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops, + V4L2_CID_CONTRAST, 0, 255, 1, DEFAULT_CONTRAST); + v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops, + V4L2_CID_SATURATION, 0, 255, 1, DEFAULT_SATURATION); + v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops, + V4L2_CID_HFLIP, 0, 1, 1, 0); + v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops, + V4L2_CID_JPEG_ACTIVE_MARKER, 0, + V4L2_JPEG_ACTIVE_MARKER_DHT, 0, + V4L2_JPEG_ACTIVE_MARKER_DHT); + v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops, + V4L2_CID_JPEG_COMPRESSION_QUALITY, 1, + 100, 1, 100); + cpia2_usb_alt.def = alternate; + cam->usb_alt = v4l2_ctrl_new_custom(hdl, &cpia2_usb_alt, NULL); + /* VP5 Only */ + if (cam->params.pnp_id.device_type != DEVICE_STV_672) + v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops, + V4L2_CID_VFLIP, 0, 1, 1, 0); + /* Flicker control only valid for 672 */ + if (cam->params.pnp_id.device_type == DEVICE_STV_672) + v4l2_ctrl_new_std_menu(hdl, &cpia2_ctrl_ops, + V4L2_CID_POWER_LINE_FREQUENCY, + V4L2_CID_POWER_LINE_FREQUENCY_60HZ, 0, 0); + /* Light control only valid for the QX5 Microscope */ + if (cam->params.pnp_id.product == 0x151) { + cam->top_light = v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops, + V4L2_CID_ILLUMINATORS_1, 0, 1, 1, 0); + cam->bottom_light = v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops, + V4L2_CID_ILLUMINATORS_2, 0, 1, 1, 0); + v4l2_ctrl_cluster(2, &cam->top_light); + } - memcpy(cam->vdev, &cpia2_template, sizeof(cpia2_template)); - video_set_drvdata(cam->vdev, cam); - cam->vdev->lock = &cam->v4l2_lock; + if (hdl->error) { + ret = hdl->error; + v4l2_ctrl_handler_free(hdl); + return ret; + } + + cam->vdev = cpia2_template; + video_set_drvdata(&cam->vdev, cam); + cam->vdev.lock = &cam->v4l2_lock; + cam->vdev.ctrl_handler = hdl; + cam->vdev.v4l2_dev = &cam->v4l2_dev; + set_bit(V4L2_FL_USE_FH_PRIO, &cam->vdev.flags); + /* Locking in file operations other than ioctl should be done + by the driver, not the V4L2 core. + This driver needs auditing so that this flag can be removed. */ + set_bit(V4L2_FL_LOCK_ALL_FOPS, &cam->vdev.flags); reset_camera_struct_v4l(cam); /* register v4l device */ - if (video_register_device(cam->vdev, VFL_TYPE_GRABBER, video_nr) < 0) { + if (video_register_device(&cam->vdev, VFL_TYPE_GRABBER, video_nr) < 0) { ERR("video_register_device failed\n"); - video_device_release(cam->vdev); return -ENODEV; } @@ -1481,13 +1170,7 @@ int cpia2_register_camera(struct camera_data *cam) *****************************************************************************/ void cpia2_unregister_camera(struct camera_data *cam) { - if (!cam->open_count) { - video_unregister_device(cam->vdev); - } else { - LOG("%s removed while open, deferring " - "video_unregister_device\n", - video_device_node_name(cam->vdev)); - } + video_unregister_device(&cam->vdev); } /****************************************************************************** @@ -1524,23 +1207,12 @@ static void __init check_parameters(void) LOG("alternate specified is invalid, using %d\n", alternate); } - if (flicker_mode != NEVER_FLICKER && flicker_mode != ANTI_FLICKER_ON) { - flicker_mode = NEVER_FLICKER; + if (flicker_mode != 0 && flicker_mode != FLICKER_50 && flicker_mode != FLICKER_60) { + flicker_mode = 0; LOG("Flicker mode specified is invalid, using %d\n", flicker_mode); } - if (flicker_freq != FLICKER_50 && flicker_freq != FLICKER_60) { - flicker_freq = FLICKER_60; - LOG("Flicker mode specified is invalid, using %d\n", - flicker_freq); - } - - if(video_nr < -1 || video_nr > 64) { - video_nr = -1; - LOG("invalid video_nr specified, must be -1 to 64\n"); - } - DBG("Using %d buffers, each %d bytes, alternate=%d\n", num_buffers, buffer_size, alternate); } |