diff options
Diffstat (limited to 'drivers/media/video/bw-qcam.c')
-rw-r--r-- | drivers/media/video/bw-qcam.c | 177 |
1 files changed, 98 insertions, 79 deletions
diff --git a/drivers/media/video/bw-qcam.c b/drivers/media/video/bw-qcam.c index f09df9dffaae..5b75a64b199b 100644 --- a/drivers/media/video/bw-qcam.c +++ b/drivers/media/video/bw-qcam.c @@ -77,6 +77,9 @@ OTHER DEALINGS IN THE SOFTWARE. #include <media/v4l2-common.h> #include <media/v4l2-ioctl.h> #include <media/v4l2-device.h> +#include <media/v4l2-fh.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-event.h> /* One from column A... */ #define QC_NOTSET 0 @@ -103,6 +106,7 @@ OTHER DEALINGS IN THE SOFTWARE. struct qcam { struct v4l2_device v4l2_dev; struct video_device vdev; + struct v4l2_ctrl_handler hdl; struct pardevice *pdev; struct parport *pport; struct mutex lock; @@ -603,8 +607,9 @@ static long qc_capture(struct qcam *q, char __user *buf, unsigned long len) } o = i * pixels_per_line + pixels_read + k; if (o < len) { + u8 ch = invert - buffer[k]; got++; - put_user((invert - buffer[k]) << shift, buf + o); + put_user(ch << shift, buf + o); } } pixels_read += bytes; @@ -644,9 +649,10 @@ static int qcam_querycap(struct file *file, void *priv, struct qcam *qcam = video_drvdata(file); strlcpy(vcap->driver, qcam->v4l2_dev.name, sizeof(vcap->driver)); - strlcpy(vcap->card, "B&W Quickcam", sizeof(vcap->card)); - strlcpy(vcap->bus_info, "parport", sizeof(vcap->bus_info)); - vcap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE; + strlcpy(vcap->card, "Connectix B&W Quickcam", sizeof(vcap->card)); + strlcpy(vcap->bus_info, qcam->pport->name, sizeof(vcap->bus_info)); + vcap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE; + vcap->capabilities = vcap->device_caps | V4L2_CAP_DEVICE_CAPS; return 0; } @@ -674,72 +680,6 @@ static int qcam_s_input(struct file *file, void *fh, unsigned int inp) return (inp > 0) ? -EINVAL : 0; } -static int qcam_queryctrl(struct file *file, void *priv, - struct v4l2_queryctrl *qc) -{ - switch (qc->id) { - case V4L2_CID_BRIGHTNESS: - return v4l2_ctrl_query_fill(qc, 0, 255, 1, 180); - case V4L2_CID_CONTRAST: - return v4l2_ctrl_query_fill(qc, 0, 255, 1, 192); - case V4L2_CID_GAMMA: - return v4l2_ctrl_query_fill(qc, 0, 255, 1, 105); - } - return -EINVAL; -} - -static int qcam_g_ctrl(struct file *file, void *priv, - struct v4l2_control *ctrl) -{ - struct qcam *qcam = video_drvdata(file); - int ret = 0; - - switch (ctrl->id) { - case V4L2_CID_BRIGHTNESS: - ctrl->value = qcam->brightness; - break; - case V4L2_CID_CONTRAST: - ctrl->value = qcam->contrast; - break; - case V4L2_CID_GAMMA: - ctrl->value = qcam->whitebal; - break; - default: - ret = -EINVAL; - break; - } - return ret; -} - -static int qcam_s_ctrl(struct file *file, void *priv, - struct v4l2_control *ctrl) -{ - struct qcam *qcam = video_drvdata(file); - int ret = 0; - - mutex_lock(&qcam->lock); - switch (ctrl->id) { - case V4L2_CID_BRIGHTNESS: - qcam->brightness = ctrl->value; - break; - case V4L2_CID_CONTRAST: - qcam->contrast = ctrl->value; - break; - case V4L2_CID_GAMMA: - qcam->whitebal = ctrl->value; - break; - default: - ret = -EINVAL; - break; - } - if (ret == 0) { - qc_setscanmode(qcam); - qcam->status |= QC_PARAM_CHANGE; - } - mutex_unlock(&qcam->lock); - return ret; -} - static int qcam_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt) { struct qcam *qcam = video_drvdata(file); @@ -749,8 +689,8 @@ static int qcam_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f pix->height = qcam->height / qcam->transfer_scale; pix->pixelformat = (qcam->bpp == 4) ? V4L2_PIX_FMT_Y4 : V4L2_PIX_FMT_Y6; pix->field = V4L2_FIELD_NONE; - pix->bytesperline = qcam->width; - pix->sizeimage = qcam->width * qcam->height; + pix->bytesperline = pix->width; + pix->sizeimage = pix->width * pix->height; /* Just a guess */ pix->colorspace = V4L2_COLORSPACE_SRGB; return 0; @@ -818,7 +758,7 @@ static int qcam_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdes "4-Bit Monochrome", V4L2_PIX_FMT_Y4, { 0, 0, 0, 0 } }, - { 0, 0, 0, + { 1, 0, 0, "6-Bit Monochrome", V4L2_PIX_FMT_Y6, { 0, 0, 0, 0 } }, @@ -833,6 +773,25 @@ static int qcam_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdes return 0; } +static int qcam_enum_framesizes(struct file *file, void *fh, + struct v4l2_frmsizeenum *fsize) +{ + static const struct v4l2_frmsize_discrete sizes[] = { + { 80, 60 }, + { 160, 120 }, + { 320, 240 }, + }; + + if (fsize->index > 2) + return -EINVAL; + if (fsize->pixel_format != V4L2_PIX_FMT_Y4 && + fsize->pixel_format != V4L2_PIX_FMT_Y6) + return -EINVAL; + fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; + fsize->discrete = sizes[fsize->index]; + return 0; +} + static ssize_t qcam_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { @@ -856,8 +815,45 @@ static ssize_t qcam_read(struct file *file, char __user *buf, return len; } +static unsigned int qcam_poll(struct file *filp, poll_table *wait) +{ + return v4l2_ctrl_poll(filp, wait) | POLLIN | POLLRDNORM; +} + +static int qcam_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct qcam *qcam = + container_of(ctrl->handler, struct qcam, hdl); + int ret = 0; + + mutex_lock(&qcam->lock); + switch (ctrl->id) { + case V4L2_CID_BRIGHTNESS: + qcam->brightness = ctrl->val; + break; + case V4L2_CID_CONTRAST: + qcam->contrast = ctrl->val; + break; + case V4L2_CID_GAMMA: + qcam->whitebal = ctrl->val; + break; + default: + ret = -EINVAL; + break; + } + if (ret == 0) { + qc_setscanmode(qcam); + qcam->status |= QC_PARAM_CHANGE; + } + mutex_unlock(&qcam->lock); + return ret; +} + static const struct v4l2_file_operations qcam_fops = { .owner = THIS_MODULE, + .open = v4l2_fh_open, + .release = v4l2_fh_release, + .poll = qcam_poll, .unlocked_ioctl = video_ioctl2, .read = qcam_read, }; @@ -867,13 +863,18 @@ static const struct v4l2_ioctl_ops qcam_ioctl_ops = { .vidioc_g_input = qcam_g_input, .vidioc_s_input = qcam_s_input, .vidioc_enum_input = qcam_enum_input, - .vidioc_queryctrl = qcam_queryctrl, - .vidioc_g_ctrl = qcam_g_ctrl, - .vidioc_s_ctrl = qcam_s_ctrl, .vidioc_enum_fmt_vid_cap = qcam_enum_fmt_vid_cap, + .vidioc_enum_framesizes = qcam_enum_framesizes, .vidioc_g_fmt_vid_cap = qcam_g_fmt_vid_cap, .vidioc_s_fmt_vid_cap = qcam_s_fmt_vid_cap, .vidioc_try_fmt_vid_cap = qcam_try_fmt_vid_cap, + .vidioc_log_status = v4l2_ctrl_log_status, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; + +static const struct v4l2_ctrl_ops qcam_ctrl_ops = { + .s_ctrl = qcam_s_ctrl, }; /* Initialize the QuickCam driver control structure. This is where @@ -889,27 +890,43 @@ static struct qcam *qcam_init(struct parport *port) return NULL; v4l2_dev = &qcam->v4l2_dev; - strlcpy(v4l2_dev->name, "bw-qcam", sizeof(v4l2_dev->name)); + snprintf(v4l2_dev->name, sizeof(v4l2_dev->name), "bw-qcam%d", num_cams); - if (v4l2_device_register(NULL, v4l2_dev) < 0) { + if (v4l2_device_register(port->dev, v4l2_dev) < 0) { v4l2_err(v4l2_dev, "Could not register v4l2_device\n"); kfree(qcam); return NULL; } + v4l2_ctrl_handler_init(&qcam->hdl, 3); + v4l2_ctrl_new_std(&qcam->hdl, &qcam_ctrl_ops, + V4L2_CID_BRIGHTNESS, 0, 255, 1, 180); + v4l2_ctrl_new_std(&qcam->hdl, &qcam_ctrl_ops, + V4L2_CID_CONTRAST, 0, 255, 1, 192); + v4l2_ctrl_new_std(&qcam->hdl, &qcam_ctrl_ops, + V4L2_CID_GAMMA, 0, 255, 1, 105); + if (qcam->hdl.error) { + v4l2_err(v4l2_dev, "couldn't register controls\n"); + v4l2_ctrl_handler_free(&qcam->hdl); + kfree(qcam); + return NULL; + } qcam->pport = port; - qcam->pdev = parport_register_device(port, "bw-qcam", NULL, NULL, + qcam->pdev = parport_register_device(port, v4l2_dev->name, NULL, NULL, NULL, 0, NULL); if (qcam->pdev == NULL) { v4l2_err(v4l2_dev, "couldn't register for %s.\n", port->name); + v4l2_ctrl_handler_free(&qcam->hdl); kfree(qcam); return NULL; } strlcpy(qcam->vdev.name, "Connectix QuickCam", sizeof(qcam->vdev.name)); qcam->vdev.v4l2_dev = v4l2_dev; + qcam->vdev.ctrl_handler = &qcam->hdl; qcam->vdev.fops = &qcam_fops; qcam->vdev.ioctl_ops = &qcam_ioctl_ops; + set_bit(V4L2_FL_USE_FH_PRIO, &qcam->vdev.flags); qcam->vdev.release = video_device_release_empty; video_set_drvdata(&qcam->vdev, qcam); @@ -984,6 +1001,7 @@ static int init_bwqcam(struct parport *port) return -ENODEV; } qc_calibrate(qcam); + v4l2_ctrl_handler_setup(&qcam->hdl); parport_release(qcam->pdev); @@ -1003,6 +1021,7 @@ static int init_bwqcam(struct parport *port) static void close_bwqcam(struct qcam *qcam) { video_unregister_device(&qcam->vdev); + v4l2_ctrl_handler_free(&qcam->hdl); parport_unregister_device(qcam->pdev); kfree(qcam); } |