static int unicam_videobuf_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
unsigned int *count, unsigned int *numplanes,
unsigned int sizes[], void *alloc_ctxs[])
{
struct soc_camera_device *icd = soc_camera_from_vb2q(vq);
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
struct unicam_camera_dev *unicam_dev =
(struct unicam_camera_dev *)ici->priv;
int bytes_per_line = soc_mbus_bytes_per_line(icd->user_width,
icd->
current_fmt->host_fmt);
dprintk("-enter");
if (bytes_per_line < 0)
return bytes_per_line;
*numplanes = 1;
unicam_dev->sequence = 0;
sizes[0] = bytes_per_line * icd->user_height;
alloc_ctxs[0] = unicam_dev->alloc_ctx;
if (!*count)
*count = 2;
iprintk("no_of_buf=%d size=%u", *count, sizes[0]);
dprintk("-exit");
return 0;
}
static int unicam_camera_set_fmt(struct soc_camera_device *icd,
struct v4l2_format *f)
{
struct device *dev = icd->dev.parent;
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
struct unicam_camera_dev *unicam_dev = ici->priv;
const struct soc_camera_format_xlate *xlate = NULL;
struct v4l2_pix_format *pix = &f->fmt.pix;
struct v4l2_mbus_framefmt mf;
int ret;
u32 skip_frames = 0;
dprintk("-enter");
xlate = soc_camera_xlate_by_fourcc(icd, pix->pixelformat);
if (!xlate) {
dev_warn(dev, "Format %x not found\n", pix->pixelformat);
return -EINVAL;
}
mf.width = pix->width;
mf.height = pix->height;
mf.field = pix->field;
mf.colorspace = pix->colorspace;
mf.code = xlate->code;
ret = v4l2_subdev_call(sd, video, s_mbus_fmt, &mf);
if (mf.code != xlate->code)
return -EINVAL;
if (ret < 0) {
dev_warn(dev, "Failed to configure for format %x\n",
pix->pixelformat);
return ret;
}
/*TODO limit here any maximum size */
ret = v4l2_subdev_call(sd, sensor, g_skip_frames, &skip_frames);
if (ret < 0) {
dev_warn(dev,
"sensor driver doesn't implement g_skip_frames operation\n");
dev_warn(dev, "assuming zero skip frames\n");
skip_frames = 0;
ret = 0;
}
unicam_dev->skip_frames = skip_frames;
pix->width = mf.width;
pix->height = mf.height;
pix->field = mf.field;
pix->colorspace = mf.colorspace;
icd->current_fmt = xlate;
iprintk("format set to %c%c%c%c res=%dx%d success=%d",
pixfmtstr(pix->pixelformat), pix->width, pix->height, ret);
dprintk("-exit");
return ret;
}
int boot_dmsg (uint64_t tty, const char *fmt, ...)
{
va_list ap;
int count;
va_start (ap, fmt);
count = iprintk (tty, 0, (char *) fmt, ap);
va_end (ap);
return count;
}
static int unicam_camera_try_fmt(struct soc_camera_device *icd,
struct v4l2_format *f)
{
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
const struct soc_camera_format_xlate *xlate;
struct v4l2_pix_format *pix = &f->fmt.pix;
struct v4l2_mbus_framefmt mf;
struct v4l2_format thumb_fmt;
struct v4l2_pix_format *thumb_pix;
__u32 pixfmt = pix->pixelformat;
int thumb=0;
int ret;
dprintk("-enter");
xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
if (!xlate) {
dev_warn(icd->dev.parent, "Format %x not found\n", pixfmt);
return -EINVAL;
}
pix->sizeimage = pix->height * pix->bytesperline;
/* limit to sensor capabilities */
mf.width = pix->width;
mf.height = pix->height;
mf.field = pix->field;
mf.colorspace = pix->colorspace;
mf.code = xlate->code;
ret = v4l2_subdev_call(sd, video, try_mbus_fmt, &mf);
if (ret < 0)
return ret;
pix->width = mf.width;
pix->height = mf.height;
pix->colorspace = mf.colorspace;
switch (mf.field) {
case V4L2_FIELD_ANY:
case V4L2_FIELD_NONE:
pix->field = V4L2_FIELD_NONE;
break;
default:
dev_err(icd->dev.parent, "Field type %d unsupported.\n",
mf.field);
return -EINVAL;
}
/* what format can unicam support */
switch (mf.code) {
case V4L2_MBUS_FMT_JPEG_1X8:
/* check here if thumbnail is supported
and check thumbnail format */
ret =
v4l2_subdev_call(sd, core, ioctl, VIDIOC_THUMB_SUPPORTED,
(void *)&thumb);
if ((!ret) && thumb) {
ret =
v4l2_subdev_call(sd, core, ioctl,
VIDIOC_THUMB_G_FMT,
(void *)&thumb_fmt);
if (ret < 0) {
dev_err(icd->dev.parent,
"sensor driver should report thumbnail format\n");
return -EINVAL;
}
thumb_pix = &thumb_fmt.fmt.pix;
switch (thumb_pix->pixelformat) {
case V4L2_PIX_FMT_YUYV:
case V4L2_PIX_FMT_UYVY:
iprintk
("sensor supports thumbnail %c%c%c%c format",
pixfmtstr(thumb_pix->pixelformat));
break;
default:
dev_err(icd->dev.parent,
"sensor thumbnail format %c%c%c%c not supported\n",
pixfmtstr(thumb_pix->pixelformat));
return -EINVAL;
}
} else
iprintk
("sensor doesnot support thumbnail (thumb=%d, ret=%d)\n",
thumb, ret);
case V4L2_MBUS_FMT_YUYV8_2X8:
case V4L2_MBUS_FMT_UYVY8_2X8:
/* Above formats are supported */
break;
default:
dev_err(icd->dev.parent, "Sensor format code %d unsupported.\n",
mf.code);
return -EINVAL;
}
iprintk("trying format=%c%c%c%c res=%dx%d success=%d",
pixfmtstr(pixfmt), mf.width, mf.height, ret);
dprintk("-exit");
return ret;
}
int unicam_videobuf_stop_streaming(struct vb2_queue *q)
{
struct soc_camera_device *icd = soc_camera_from_vb2q(q);
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
struct unicam_camera_dev *unicam_dev = ici->priv;
CSL_CAM_FRAME_st_t cslCamFrame;
int ret = 0;
unsigned long flags;
if (down_interruptible(&unicam_dev->stop_processing_sem) == 0) {
if (unicam_dev->streaming)
csl_cam_register_display(unicam_dev->cslCamHandle);
} else
dev_err(unicam_dev->dev, "Unable to dump regs because stop_processing_sem acquire failed\n");
/* grab the lock */
spin_lock_irqsave(&unicam_dev->lock, flags);
dprintk("-enter");
dprintk("disabling csi");
iprintk("stopping stream");
if (!unicam_dev->streaming) {
dev_err(unicam_dev->dev, "stream already turned off\n");
goto out;
}
/*
* stop streaming before grabing spin lock
* since this function can sleep.
* */
if (unicam_dev->active) {
unicam_dev->stopping = true;
spin_unlock_irqrestore(&unicam_dev->lock, flags);
ret = down_timeout(&unicam_dev->stop_sem,
msecs_to_jiffies(500));
if (ret == -ETIME)
pr_err("Unicam: semaphore timed out waiting to STOP\n");
} else {
spin_unlock_irqrestore(&unicam_dev->lock, flags);
}
usleep_range(50, 60); /*TODO: Need to double-check with ASIC team*/
spin_lock_irqsave(&unicam_dev->lock, flags);
/* disable frame interrupts */
cslCamFrame.int_enable = CSL_CAM_INT_DISABLE;
cslCamFrame.int_line_count = 0;
cslCamFrame.capture_mode = UNICAM_CAPTURE_MODE;
cslCamFrame.capture_size = 0;
if (csl_cam_set_frame_control(unicam_dev->cslCamHandle, &cslCamFrame)) {
dev_err(unicam_dev->dev,
"csl_cam_set_frame_control(): FAILED\n");
ret = -1;
}
/* disable receiver */
if (csl_cam_rx_stop(unicam_dev->cslCamHandle)) {
dev_err(unicam_dev->dev, "csl_cam_rx_stop(): FAILED\n");
ret = -1;
}
if (csl_cam_close(unicam_dev->cslCamHandle)) {
dev_err(unicam_dev->dev, "cals_cam_exit(): FAILED\n");
ret = -1;
}
if (csl_cam_exit()) {
dev_err(unicam_dev->dev, "csl_cam_exit(): FAILED\n");
ret = -1;
}
unicam_dev->active = NULL;
unicam_dev->streaming = 0;
out:
dprintk("-exit");
spin_unlock_irqrestore(&unicam_dev->lock, flags);
up(&unicam_dev->stop_processing_sem);
/* Stopping stream after stopping unicam */
ret = v4l2_subdev_call(sd, video, s_stream, 0);
if (ret < 0 && ret != -ENOIOCTLCMD) {
dev_err(unicam_dev->dev, "failed to stop sensor streaming\n");
ret = -1;
}
return ret;
}
int unicam_videobuf_start_streaming(struct vb2_queue *q, unsigned int count)
{
struct soc_camera_device *icd = soc_camera_from_vb2q(q);
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
struct unicam_camera_dev *unicam_dev = ici->priv;
struct v4l2_subdev_sensor_interface_parms if_params;
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
int ret;
int thumb;
unsigned long flags;
CSL_CAM_INTF_CFG_st_t csl_cam_intf_cfg_st;
CSL_CAM_LANE_CONTROL_st_t cslCamLaneCtrl_st;
CSL_CAM_PIPELINE_st_t cslCamPipeline;
CSL_CAM_IMAGE_ID_st_t cslCamImageCtrl;
CSL_CAM_DATA_st_t cslCamDataCtrl;
CSL_CAM_FRAME_st_t cslCamFrame;
dprintk("-enter");
iprintk("enabling csi");
spin_lock_irqsave(&unicam_dev->lock, flags);
unicam_dev->stopping = false;
spin_unlock_irqrestore(&unicam_dev->lock, flags);
if (csl_cam_init()) {
dev_err(unicam_dev->dev, "error initializing csl camera\n");
return -1;
}
ret = v4l2_subdev_call(sd, video, s_stream, 1);
if (ret < 0 && ret != -ENOIOCTLCMD) {
dev_err(unicam_dev->dev, "error on s_stream(%d)\n", ret);
spin_lock_irqsave(&unicam_dev->lock, flags);
unicam_dev->active = NULL;
unicam_dev->stopping = true;
spin_unlock_irqrestore(&unicam_dev->lock, flags);
if (csl_cam_exit())
dev_err(unicam_dev->dev, "csl_cam_exit(): FAILED\n");
return ret;
}
/* get the sensor interface information */
ret = v4l2_subdev_call(sd, sensor, g_interface_parms, &if_params);
if (ret < 0) {
dev_err(unicam_dev->dev, "error on g_inferface_params(%d)\n",
ret);
return ret;
}
unicam_dev->if_params = if_params;
/* set camera interface parameters */
memset(&csl_cam_intf_cfg_st, 0, sizeof(CSL_CAM_INTF_CFG_st_t));
/* we only support serial and csi2 sensor */
if ((unicam_dev->if_params.if_type == V4L2_SUBDEV_SENSOR_SERIAL)
&& (unicam_dev->if_params.if_mode ==
V4L2_SUBDEV_SENSOR_MODE_SERIAL_CSI2)) {
csl_cam_intf_cfg_st.intf = CSL_CAM_INTF_CSI;
} else if ((unicam_dev->if_params.if_type == V4L2_SUBDEV_SENSOR_SERIAL)
&& (unicam_dev->if_params.if_mode ==
V4L2_SUBDEV_SENSOR_MODE_SERIAL_CSI1)) {
csl_cam_intf_cfg_st.intf = CSL_CAM_INTF_CCP;
} else {
dev_err(unicam_dev->dev,
"CSI2 iface only supported,requested iface %d mode=%d\n",
unicam_dev->if_params.if_type,
unicam_dev->if_params.if_mode);
return -EINVAL;
}
if (unicam_dev->if_params.parms.serial.channel == 0)
csl_cam_intf_cfg_st.afe_port = CSL_CAM_PORT_AFE_0;
else if (unicam_dev->if_params.parms.serial.channel == 1)
csl_cam_intf_cfg_st.afe_port = CSL_CAM_PORT_AFE_1;
else {
dev_err(unicam_dev->dev,
"receiver only supports two channels, request channel=%d\n",
unicam_dev->if_params.parms.serial.channel);
return -EINVAL;
}
csl_cam_intf_cfg_st.frame_time_out = 1000;
/* open camera interface */
csl_cam_intf_cfg_st.p_cpi_intf_st = NULL;
if ((unicam_dev->if_params.if_type == V4L2_SUBDEV_SENSOR_SERIAL)
&& (unicam_dev->if_params.if_mode ==
V4L2_SUBDEV_SENSOR_MODE_SERIAL_CSI2)) {
if (unicam_dev->if_params.parms.serial.lanes == 1)
csl_cam_intf_cfg_st.input_mode =
CSL_CAM_INPUT_SINGLE_LANE;
else if (unicam_dev->if_params.parms.serial.lanes == 2)
csl_cam_intf_cfg_st.input_mode =
CSL_CAM_INPUT_DUAL_LANE;
else {
dev_err(unicam_dev->dev,
"receiver only supports max 2 lanes, requested lanes(%d)\n",
unicam_dev->if_params.parms.serial.lanes);
return -EINVAL;
}
} else {
csl_cam_intf_cfg_st.input_mode = CSL_CAM_INPUT_MODE_DATA_CLOCK;
}
if (csl_cam_open(&csl_cam_intf_cfg_st, &unicam_dev->cslCamHandle)) {
dev_err(unicam_dev->dev, "%s: csl_cam_open(): ERROR\n",
__func__);
return -1;
}
/* set data lane timing */
cslCamLaneCtrl_st.lane_select = CSL_CAM_DATA_LANE_0;
cslCamLaneCtrl_st.lane_control = CSL_CAM_LANE_HS_TERM_TIME;
cslCamLaneCtrl_st.param =
unicam_dev->if_params.parms.serial.hs_term_time;
dprintk("hs_term_time is set to = %d\n", cslCamLaneCtrl_st.param);
if (csl_cam_set_lane_control
(unicam_dev->cslCamHandle, &cslCamLaneCtrl_st)) {
dev_err(unicam_dev->dev,
"csl_cam_set_lane_control(): FAILED\n");
return -1;
}
if (unicam_dev->if_params.parms.serial.hs_settle_time != 0) {
cslCamLaneCtrl_st.lane_select = CSL_CAM_DATA_LANE_0;
cslCamLaneCtrl_st.lane_control = CSL_CAM_LANE_HS_SETTLE_TIME;
cslCamLaneCtrl_st.param =
unicam_dev->if_params.parms.serial.hs_settle_time;
dprintk("hs_settle_time is set to = %d\n",
cslCamLaneCtrl_st.param);
if (csl_cam_set_lane_control
(unicam_dev->cslCamHandle, &cslCamLaneCtrl_st)) {
dev_err(unicam_dev->dev,
"csl_cam_set_lane_control(): FAILED\n");
return -1;
}
}
/* pipelince decode */
cslCamPipeline.decode = CSL_CAM_DEC_NONE;
cslCamPipeline.unpack = CSL_CAM_PIXEL_NONE;
cslCamPipeline.pack = CSL_CAM_PIXEL_NONE;
cslCamPipeline.dec_adv_predictor = FALSE;
cslCamPipeline.encode = CSL_CAM_ENC_NONE;
cslCamPipeline.enc_adv_predictor = FALSE;
cslCamPipeline.encode_blk_size = 0x0000;
/* set pipeline */
if (csl_cam_set_pipeline_control
(unicam_dev->cslCamHandle, &cslCamPipeline)) {
dev_err(unicam_dev->dev,
"csl_cam_set_pipeline_control(): FAILE\n");
return -1;
}
/* set image identifier (CSI mode only) */
memset(&cslCamImageCtrl, 0, sizeof(CSL_CAM_IMAGE_ID_st_t));
/* if thumbnail is supported we expect
* thumbnail to be in image ptr format of thumbnails is yuv422
* format is checked in try format.
* in case where thumbnail is not supported we get jpeg
* image in data pointer. so we set the id as 0
*/
thumb = 0;
ret =
v4l2_subdev_call(sd, core, ioctl, VIDIOC_THUMB_SUPPORTED,
(void *)&thumb);
if (ret < 0)
dev_warn(unicam_dev->dev,
"sensor returns error(%d) for VIDIOC_THUMB_SUPPORTED\n",
ret);
if ((icd->current_fmt->code == V4L2_MBUS_FMT_JPEG_1X8)
&& (thumb == 0))
cslCamImageCtrl.image_data_id0 = 0x0;
/* thumbnail not supported */
else
cslCamImageCtrl.image_data_id0 = 0x1E;
if (unicam_dev->if_params.if_mode ==
V4L2_SUBDEV_SENSOR_MODE_SERIAL_CSI1)
cslCamImageCtrl.image_data_id0 = 0x0; /* CCP2 channel ID 0 */
if (csl_cam_set_image_type_control
(unicam_dev->cslCamHandle, &cslCamImageCtrl)) {
dev_err(unicam_dev->dev,
"csl_cam_set_image_type_control(): FAILED\n");
return -1;
}
/* set data capture */
cslCamDataCtrl.int_enable = (CSL_CAM_INTERRUPT_t) (CSL_CAM_INT_DISABLE);
if (unicam_dev->if_params.if_mode ==
V4L2_SUBDEV_SENSOR_MODE_SERIAL_CSI2) {
cslCamDataCtrl.line_count = 2;
cslCamDataCtrl.fsp_decode_enable = FALSE;
} else {
cslCamDataCtrl.line_count = 0;
cslCamDataCtrl.fsp_decode_enable = TRUE;
}
cslCamDataCtrl.data_id = 0x00;
cslCamDataCtrl.data_size = CSL_CAM_PIXEL_8BIT;
if (csl_cam_set_data_type_control
(unicam_dev->cslCamHandle, &cslCamDataCtrl)) {
dev_err(unicam_dev->dev,
"csl_cam_set_data_type_control(): FAILED\n");
return -1;
}
/* start receiver */
if (csl_cam_rx_start(unicam_dev->cslCamHandle)) {
dev_err(unicam_dev->dev, "csl_cam_rx_start(): FAILED\n");
return -1;
}
/* Enabling sensor after enabling unicam */
/*
ret = v4l2_subdev_call(sd, video, s_stream, 1);
if (ret < 0 && ret != -ENOIOCTLCMD) {
dev_err(unicam_dev->dev, "error on s_stream(%d)\n", ret);
return ret;
}
*/
if (unicam_dev->if_params.if_mode ==
V4L2_SUBDEV_SENSOR_MODE_SERIAL_CSI1) {
cslCamFrame.int_enable = CSL_CAM_INT_LINE_COUNT;
/* CSL_CAM_INT_FRAME_END | CSL_CAM_INT_FRAME_START;
//CSL_CAM_INT_LINE_COUNT;
cslCamFrame.int_line_count =
(unicam_dev->icd->user_height - 1);*/
cslCamFrame.int_line_count = (unicam_dev->icd->user_height);
cslCamFrame.capture_mode = CSL_CAM_CAPTURE_MODE_NORMAL;
/* CSL_CAM_CAPTURE_MODE_NORMAL */
if (csl_cam_set_frame_control(
unicam_dev->cslCamHandle, &cslCamFrame)) {
dev_err(unicam_dev->dev,
"csl_cam_set_frame_control(): FAILED\n");
return -1;
}
}
/* Configure HW if buffer is queued ahead of streamon */
spin_lock_irqsave(&unicam_dev->lock, flags);
if(unicam_dev->active){
unicam_camera_update_buf(unicam_dev);
if (unicam_dev->if_params.if_mode ==
V4L2_SUBDEV_SENSOR_MODE_SERIAL_CSI2)
unicam_camera_capture(unicam_dev);
}
unicam_dev->streaming = 1;
spin_unlock_irqrestore(&unicam_dev->lock, flags);
csl_cam_register_display(unicam_dev->cslCamHandle);
dprintk("-exit");
return 0;
}
