diff options
Diffstat (limited to 'drivers/media/video/davinci/vpbe_display.c')
| -rw-r--r-- | drivers/media/video/davinci/vpbe_display.c | 1838 |
1 files changed, 0 insertions, 1838 deletions
diff --git a/drivers/media/video/davinci/vpbe_display.c b/drivers/media/video/davinci/vpbe_display.c deleted file mode 100644 index 9a05c817462c..000000000000 --- a/drivers/media/video/davinci/vpbe_display.c +++ /dev/null @@ -1,1838 +0,0 @@ -/* - * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/ - * - * 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 version 2. - * - * This program is distributed WITHOUT ANY WARRANTY of any - * kind, whether express or implied; without even the implied warranty - * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/errno.h> -#include <linux/interrupt.h> -#include <linux/string.h> -#include <linux/wait.h> -#include <linux/time.h> -#include <linux/platform_device.h> -#include <linux/irq.h> -#include <linux/mm.h> -#include <linux/mutex.h> -#include <linux/videodev2.h> -#include <linux/slab.h> - -#include <asm/pgtable.h> -#include <mach/cputype.h> - -#include <media/v4l2-dev.h> -#include <media/v4l2-common.h> -#include <media/v4l2-ioctl.h> -#include <media/v4l2-device.h> -#include <media/davinci/vpbe_display.h> -#include <media/davinci/vpbe_types.h> -#include <media/davinci/vpbe.h> -#include <media/davinci/vpbe_venc.h> -#include <media/davinci/vpbe_osd.h> -#include "vpbe_venc_regs.h" - -#define VPBE_DISPLAY_DRIVER "vpbe-v4l2" - -static int debug; - -#define VPBE_DEFAULT_NUM_BUFS 3 - -module_param(debug, int, 0644); - -static int venc_is_second_field(struct vpbe_display *disp_dev) -{ - struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; - int ret; - int val; - - ret = v4l2_subdev_call(vpbe_dev->venc, - core, - ioctl, - VENC_GET_FLD, - &val); - if (ret < 0) { - v4l2_err(&vpbe_dev->v4l2_dev, - "Error in getting Field ID 0\n"); - } - return val; -} - -static void vpbe_isr_even_field(struct vpbe_display *disp_obj, - struct vpbe_layer *layer) -{ - struct timespec timevalue; - - if (layer->cur_frm == layer->next_frm) - return; - ktime_get_ts(&timevalue); - layer->cur_frm->ts.tv_sec = timevalue.tv_sec; - layer->cur_frm->ts.tv_usec = timevalue.tv_nsec / NSEC_PER_USEC; - layer->cur_frm->state = VIDEOBUF_DONE; - wake_up_interruptible(&layer->cur_frm->done); - /* Make cur_frm pointing to next_frm */ - layer->cur_frm = layer->next_frm; -} - -static void vpbe_isr_odd_field(struct vpbe_display *disp_obj, - struct vpbe_layer *layer) -{ - struct osd_state *osd_device = disp_obj->osd_device; - unsigned long addr; - - spin_lock(&disp_obj->dma_queue_lock); - if (list_empty(&layer->dma_queue) || - (layer->cur_frm != layer->next_frm)) { - spin_unlock(&disp_obj->dma_queue_lock); - return; - } - /* - * one field is displayed configure - * the next frame if it is available - * otherwise hold on current frame - * Get next from the buffer queue - */ - layer->next_frm = list_entry( - layer->dma_queue.next, - struct videobuf_buffer, - queue); - /* Remove that from the buffer queue */ - list_del(&layer->next_frm->queue); - spin_unlock(&disp_obj->dma_queue_lock); - /* Mark state of the frame to active */ - layer->next_frm->state = VIDEOBUF_ACTIVE; - addr = videobuf_to_dma_contig(layer->next_frm); - osd_device->ops.start_layer(osd_device, - layer->layer_info.id, - addr, - disp_obj->cbcr_ofst); -} - -/* interrupt service routine */ -static irqreturn_t venc_isr(int irq, void *arg) -{ - struct vpbe_display *disp_dev = (struct vpbe_display *)arg; - struct vpbe_layer *layer; - static unsigned last_event; - unsigned event = 0; - int fid; - int i; - - if ((NULL == arg) || (NULL == disp_dev->dev[0])) - return IRQ_HANDLED; - - if (venc_is_second_field(disp_dev)) - event |= VENC_SECOND_FIELD; - else - event |= VENC_FIRST_FIELD; - - if (event == (last_event & ~VENC_END_OF_FRAME)) { - /* - * If the display is non-interlaced, then we need to flag the - * end-of-frame event at every interrupt regardless of the - * value of the FIDST bit. We can conclude that the display is - * non-interlaced if the value of the FIDST bit is unchanged - * from the previous interrupt. - */ - event |= VENC_END_OF_FRAME; - } else if (event == VENC_SECOND_FIELD) { - /* end-of-frame for interlaced display */ - event |= VENC_END_OF_FRAME; - } - last_event = event; - - for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) { - layer = disp_dev->dev[i]; - /* If streaming is started in this layer */ - if (!layer->started) - continue; - - if (layer->layer_first_int) { - layer->layer_first_int = 0; - continue; - } - /* Check the field format */ - if ((V4L2_FIELD_NONE == layer->pix_fmt.field) && - (event & VENC_END_OF_FRAME)) { - /* Progressive mode */ - - vpbe_isr_even_field(disp_dev, layer); - vpbe_isr_odd_field(disp_dev, layer); - } else { - /* Interlaced mode */ - - layer->field_id ^= 1; - if (event & VENC_FIRST_FIELD) - fid = 0; - else - fid = 1; - - /* - * If field id does not match with store - * field id - */ - if (fid != layer->field_id) { - /* Make them in sync */ - layer->field_id = fid; - continue; - } - /* - * device field id and local field id are - * in sync. If this is even field - */ - if (0 == fid) - vpbe_isr_even_field(disp_dev, layer); - else /* odd field */ - vpbe_isr_odd_field(disp_dev, layer); - } - } - - return IRQ_HANDLED; -} - -/* - * vpbe_buffer_prepare() - * This is the callback function called from videobuf_qbuf() function - * the buffer is prepared and user space virtual address is converted into - * physical address - */ -static int vpbe_buffer_prepare(struct videobuf_queue *q, - struct videobuf_buffer *vb, - enum v4l2_field field) -{ - struct vpbe_fh *fh = q->priv_data; - struct vpbe_layer *layer = fh->layer; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - unsigned long addr; - int ret; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, - "vpbe_buffer_prepare\n"); - - /* If buffer is not initialized, initialize it */ - if (VIDEOBUF_NEEDS_INIT == vb->state) { - vb->width = layer->pix_fmt.width; - vb->height = layer->pix_fmt.height; - vb->size = layer->pix_fmt.sizeimage; - vb->field = field; - - ret = videobuf_iolock(q, vb, NULL); - if (ret < 0) { - v4l2_err(&vpbe_dev->v4l2_dev, "Failed to map \ - user address\n"); - return -EINVAL; - } - - addr = videobuf_to_dma_contig(vb); - - if (q->streaming) { - if (!IS_ALIGNED(addr, 8)) { - v4l2_err(&vpbe_dev->v4l2_dev, - "buffer_prepare:offset is \ - not aligned to 32 bytes\n"); - return -EINVAL; - } - } - vb->state = VIDEOBUF_PREPARED; - } - return 0; -} - -/* - * vpbe_buffer_setup() - * This function allocates memory for the buffers - */ -static int vpbe_buffer_setup(struct videobuf_queue *q, - unsigned int *count, - unsigned int *size) -{ - /* Get the file handle object and layer object */ - struct vpbe_fh *fh = q->priv_data; - struct vpbe_layer *layer = fh->layer; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_buffer_setup\n"); - - *size = layer->pix_fmt.sizeimage; - - /* Store number of buffers allocated in numbuffer member */ - if (*count < VPBE_DEFAULT_NUM_BUFS) - *count = layer->numbuffers = VPBE_DEFAULT_NUM_BUFS; - - return 0; -} - -/* - * vpbe_buffer_queue() - * This function adds the buffer to DMA queue - */ -static void vpbe_buffer_queue(struct videobuf_queue *q, - struct videobuf_buffer *vb) -{ - /* Get the file handle object and layer object */ - struct vpbe_fh *fh = q->priv_data; - struct vpbe_layer *layer = fh->layer; - struct vpbe_display *disp = fh->disp_dev; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - unsigned long flags; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, - "vpbe_buffer_queue\n"); - - /* add the buffer to the DMA queue */ - spin_lock_irqsave(&disp->dma_queue_lock, flags); - list_add_tail(&vb->queue, &layer->dma_queue); - spin_unlock_irqrestore(&disp->dma_queue_lock, flags); - /* Change state of the buffer */ - vb->state = VIDEOBUF_QUEUED; -} - -/* - * vpbe_buffer_release() - * This function is called from the videobuf layer to free memory allocated to - * the buffers - */ -static void vpbe_buffer_release(struct videobuf_queue *q, - struct videobuf_buffer *vb) -{ - /* Get the file handle object and layer object */ - struct vpbe_fh *fh = q->priv_data; - struct vpbe_layer *layer = fh->layer; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, - "vpbe_buffer_release\n"); - - if (V4L2_MEMORY_USERPTR != layer->memory) - videobuf_dma_contig_free(q, vb); - - vb->state = VIDEOBUF_NEEDS_INIT; -} - -static struct videobuf_queue_ops video_qops = { - .buf_setup = vpbe_buffer_setup, - .buf_prepare = vpbe_buffer_prepare, - .buf_queue = vpbe_buffer_queue, - .buf_release = vpbe_buffer_release, -}; - -static -struct vpbe_layer* -_vpbe_display_get_other_win_layer(struct vpbe_display *disp_dev, - struct vpbe_layer *layer) -{ - enum vpbe_display_device_id thiswin, otherwin; - thiswin = layer->device_id; - - otherwin = (thiswin == VPBE_DISPLAY_DEVICE_0) ? - VPBE_DISPLAY_DEVICE_1 : VPBE_DISPLAY_DEVICE_0; - return disp_dev->dev[otherwin]; -} - -static int vpbe_set_osd_display_params(struct vpbe_display *disp_dev, - struct vpbe_layer *layer) -{ - struct osd_layer_config *cfg = &layer->layer_info.config; - struct osd_state *osd_device = disp_dev->osd_device; - struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; - unsigned long addr; - int ret; - - addr = videobuf_to_dma_contig(layer->cur_frm); - /* Set address in the display registers */ - osd_device->ops.start_layer(osd_device, - layer->layer_info.id, - addr, - disp_dev->cbcr_ofst); - - ret = osd_device->ops.enable_layer(osd_device, - layer->layer_info.id, 0); - if (ret < 0) { - v4l2_err(&vpbe_dev->v4l2_dev, - "Error in enabling osd window layer 0\n"); - return -1; - } - - /* Enable the window */ - layer->layer_info.enable = 1; - if (cfg->pixfmt == PIXFMT_NV12) { - struct vpbe_layer *otherlayer = - _vpbe_display_get_other_win_layer(disp_dev, layer); - - ret = osd_device->ops.enable_layer(osd_device, - otherlayer->layer_info.id, 1); - if (ret < 0) { - v4l2_err(&vpbe_dev->v4l2_dev, - "Error in enabling osd window layer 1\n"); - return -1; - } - otherlayer->layer_info.enable = 1; - } - return 0; -} - -static void -vpbe_disp_calculate_scale_factor(struct vpbe_display *disp_dev, - struct vpbe_layer *layer, - int expected_xsize, int expected_ysize) -{ - struct display_layer_info *layer_info = &layer->layer_info; - struct v4l2_pix_format *pixfmt = &layer->pix_fmt; - struct osd_layer_config *cfg = &layer->layer_info.config; - struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; - int calculated_xsize; - int h_exp = 0; - int v_exp = 0; - int h_scale; - int v_scale; - - v4l2_std_id standard_id = vpbe_dev->current_timings.timings.std_id; - - /* - * Application initially set the image format. Current display - * size is obtained from the vpbe display controller. expected_xsize - * and expected_ysize are set through S_CROP ioctl. Based on this, - * driver will calculate the scale factors for vertical and - * horizontal direction so that the image is displayed scaled - * and expanded. Application uses expansion to display the image - * in a square pixel. Otherwise it is displayed using displays - * pixel aspect ratio.It is expected that application chooses - * the crop coordinates for cropped or scaled display. if crop - * size is less than the image size, it is displayed cropped or - * it is displayed scaled and/or expanded. - * - * to begin with, set the crop window same as expected. Later we - * will override with scaled window size - */ - - cfg->xsize = pixfmt->width; - cfg->ysize = pixfmt->height; - layer_info->h_zoom = ZOOM_X1; /* no horizontal zoom */ - layer_info->v_zoom = ZOOM_X1; /* no horizontal zoom */ - layer_info->h_exp = H_EXP_OFF; /* no horizontal zoom */ - layer_info->v_exp = V_EXP_OFF; /* no horizontal zoom */ - - if (pixfmt->width < expected_xsize) { - h_scale = vpbe_dev->current_timings.xres / pixfmt->width; - if (h_scale < 2) - h_scale = 1; - else if (h_scale >= 4) - h_scale = 4; - else - h_scale = 2; - cfg->xsize *= h_scale; - if (cfg->xsize < expected_xsize) { - if ((standard_id & V4L2_STD_525_60) || - (standard_id & V4L2_STD_625_50)) { - calculated_xsize = (cfg->xsize * - VPBE_DISPLAY_H_EXP_RATIO_N) / - VPBE_DISPLAY_H_EXP_RATIO_D; - if (calculated_xsize <= expected_xsize) { - h_exp = 1; - cfg->xsize = calculated_xsize; - } - } - } - if (h_scale == 2) - layer_info->h_zoom = ZOOM_X2; - else if (h_scale == 4) - layer_info->h_zoom = ZOOM_X4; - if (h_exp) - layer_info->h_exp = H_EXP_9_OVER_8; - } else { - /* no scaling, only cropping. Set display area to crop area */ - cfg->xsize = expected_xsize; - } - - if (pixfmt->height < expected_ysize) { - v_scale = expected_ysize / pixfmt->height; - if (v_scale < 2) - v_scale = 1; - else if (v_scale >= 4) - v_scale = 4; - else - v_scale = 2; - cfg->ysize *= v_scale; - if (cfg->ysize < expected_ysize) { - if ((standard_id & V4L2_STD_625_50)) { - calculated_xsize = (cfg->ysize * - VPBE_DISPLAY_V_EXP_RATIO_N) / - VPBE_DISPLAY_V_EXP_RATIO_D; - if (calculated_xsize <= expected_ysize) { - v_exp = 1; - cfg->ysize = calculated_xsize; - } - } - } - if (v_scale == 2) - layer_info->v_zoom = ZOOM_X2; - else if (v_scale == 4) - layer_info->v_zoom = ZOOM_X4; - if (v_exp) - layer_info->h_exp = V_EXP_6_OVER_5; - } else { - /* no scaling, only cropping. Set display area to crop area */ - cfg->ysize = expected_ysize; - } - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, - "crop display xsize = %d, ysize = %d\n", - cfg->xsize, cfg->ysize); -} - -static void vpbe_disp_adj_position(struct vpbe_display *disp_dev, - struct vpbe_layer *layer, - int top, int left) -{ - struct osd_layer_config *cfg = &layer->layer_info.config; - struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; - - cfg->xpos = min((unsigned int)left, - vpbe_dev->current_timings.xres - cfg->xsize); - cfg->ypos = min((unsigned int)top, - vpbe_dev->current_timings.yres - cfg->ysize); - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, - "new xpos = %d, ypos = %d\n", - cfg->xpos, cfg->ypos); -} - -static void vpbe_disp_check_window_params(struct vpbe_display *disp_dev, - struct v4l2_rect *c) -{ - struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; - - if ((c->width == 0) || - ((c->width + c->left) > vpbe_dev->current_timings.xres)) - c->width = vpbe_dev->current_timings.xres - c->left; - - if ((c->height == 0) || ((c->height + c->top) > - vpbe_dev->current_timings.yres)) - c->height = vpbe_dev->current_timings.yres - c->top; - - /* window height must be even for interlaced display */ - if (vpbe_dev->current_timings.interlaced) - c->height &= (~0x01); - -} - -/** - * vpbe_try_format() - * If user application provides width and height, and have bytesperline set - * to zero, driver calculates bytesperline and sizeimage based on hardware - * limits. - */ -static int vpbe_try_format(struct vpbe_display *disp_dev, - struct v4l2_pix_format *pixfmt, int check) -{ - struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; - int min_height = 1; - int min_width = 32; - int max_height; - int max_width; - int bpp; - - if ((pixfmt->pixelformat != V4L2_PIX_FMT_UYVY) && - (pixfmt->pixelformat != V4L2_PIX_FMT_NV12)) - /* choose default as V4L2_PIX_FMT_UYVY */ - pixfmt->pixelformat = V4L2_PIX_FMT_UYVY; - - /* Check the field format */ - if ((pixfmt->field != V4L2_FIELD_INTERLACED) && - (pixfmt->field != V4L2_FIELD_NONE)) { - if (vpbe_dev->current_timings.interlaced) - pixfmt->field = V4L2_FIELD_INTERLACED; - else - pixfmt->field = V4L2_FIELD_NONE; - } - - if (pixfmt->field == V4L2_FIELD_INTERLACED) - min_height = 2; - - if (pixfmt->pixelformat == V4L2_PIX_FMT_NV12) - bpp = 1; - else - bpp = 2; - - max_width = vpbe_dev->current_timings.xres; - max_height = vpbe_dev->current_timings.yres; - - min_width /= bpp; - - if (!pixfmt->width || (pixfmt->width < min_width) || - (pixfmt->width > max_width)) { - pixfmt->width = vpbe_dev->current_timings.xres; - } - - if (!pixfmt->height || (pixfmt->height < min_height) || - (pixfmt->height > max_height)) { - pixfmt->height = vpbe_dev->current_timings.yres; - } - - if (pixfmt->bytesperline < (pixfmt->width * bpp)) - pixfmt->bytesperline = pixfmt->width * bpp; - - /* Make the bytesperline 32 byte aligned */ - pixfmt->bytesperline = ((pixfmt->width * bpp + 31) & ~31); - - if (pixfmt->pixelformat == V4L2_PIX_FMT_NV12) - pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height + - (pixfmt->bytesperline * pixfmt->height >> 1); - else - pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height; - - return 0; -} - -static int vpbe_display_g_priority(struct file *file, void *priv, - enum v4l2_priority *p) -{ - struct vpbe_fh *fh = file->private_data; - struct vpbe_layer *layer = fh->layer; - - *p = v4l2_prio_max(&layer->prio); - - return 0; -} - -static int vpbe_display_s_priority(struct file *file, void *priv, - enum v4l2_priority p) -{ - struct vpbe_fh *fh = file->private_data; - struct vpbe_layer *layer = fh->layer; - int ret; - - ret = v4l2_prio_change(&layer->prio, &fh->prio, p); - - return ret; -} - -static int vpbe_display_querycap(struct file *file, void *priv, - struct v4l2_capability *cap) -{ - struct vpbe_fh *fh = file->private_data; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - - cap->version = VPBE_DISPLAY_VERSION_CODE; - cap->capabilities = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING; - strlcpy(cap->driver, VPBE_DISPLAY_DRIVER, sizeof(cap->driver)); - strlcpy(cap->bus_info, "platform", sizeof(cap->bus_info)); - strlcpy(cap->card, vpbe_dev->cfg->module_name, sizeof(cap->card)); - - return 0; -} - -static int vpbe_display_s_crop(struct file *file, void *priv, - struct v4l2_crop *crop) -{ - struct vpbe_fh *fh = file->private_data; - struct vpbe_layer *layer = fh->layer; - struct vpbe_display *disp_dev = fh->disp_dev; - struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; - struct osd_layer_config *cfg = &layer->layer_info.config; - struct osd_state *osd_device = disp_dev->osd_device; - struct v4l2_rect *rect = &crop->c; - int ret; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, - "VIDIOC_S_CROP, layer id = %d\n", layer->device_id); - - if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) { - v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buf type\n"); - return -EINVAL; - } - - if (rect->top < 0) - rect->top = 0; - if (rect->left < 0) - rect->left = 0; - - vpbe_disp_check_window_params(disp_dev, rect); - - osd_device->ops.get_layer_config(osd_device, - layer->layer_info.id, cfg); - - vpbe_disp_calculate_scale_factor(disp_dev, layer, - rect->width, - rect->height); - vpbe_disp_adj_position(disp_dev, layer, rect->top, - rect->left); - ret = osd_device->ops.set_layer_config(osd_device, - layer->layer_info.id, cfg); - if (ret < 0) { - v4l2_err(&vpbe_dev->v4l2_dev, - "Error in set layer config:\n"); - return -EINVAL; - } - - /* apply zooming and h or v expansion */ - osd_device->ops.set_zoom(osd_device, - layer->layer_info.id, - layer->layer_info.h_zoom, - layer->layer_info.v_zoom); - ret = osd_device->ops.set_vid_expansion(osd_device, - layer->layer_info.h_exp, - layer->layer_info.v_exp); - if (ret < 0) { - v4l2_err(&vpbe_dev->v4l2_dev, - "Error in set vid expansion:\n"); - return -EINVAL; - } - - if ((layer->layer_info.h_zoom != ZOOM_X1) || - (layer->layer_info.v_zoom != ZOOM_X1) || - (layer->layer_info.h_exp != H_EXP_OFF) || - (layer->layer_info.v_exp != V_EXP_OFF)) - /* Enable expansion filter */ - osd_device->ops.set_interpolation_filter(osd_device, 1); - else - osd_device->ops.set_interpolation_filter(osd_device, 0); - - return 0; -} - -static int vpbe_display_g_crop(struct file *file, void *priv, - struct v4l2_crop *crop) -{ - struct vpbe_fh *fh = file->private_data; - struct vpbe_layer *layer = fh->layer; - struct osd_layer_config *cfg = &layer->layer_info.config; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - struct osd_state *osd_device = fh->disp_dev->osd_device; - struct v4l2_rect *rect = &crop->c; - int ret; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, - "VIDIOC_G_CROP, layer id = %d\n", - layer->device_id); - - if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) { - v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buf type\n"); - ret = -EINVAL; - } - osd_device->ops.get_layer_config(osd_device, - layer->layer_info.id, cfg); - rect->top = cfg->ypos; - rect->left = cfg->xpos; - rect->width = cfg->xsize; - rect->height = cfg->ysize; - - return 0; -} - -static int vpbe_display_cropcap(struct file *file, void *priv, - struct v4l2_cropcap *cropcap) -{ - struct vpbe_fh *fh = file->private_data; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_CROPCAP ioctl\n"); - - cropcap->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; - cropcap->bounds.left = 0; - cropcap->bounds.top = 0; - cropcap->bounds.width = vpbe_dev->current_timings.xres; - cropcap->bounds.height = vpbe_dev->current_timings.yres; - cropcap->pixelaspect = vpbe_dev->current_timings.aspect; - cropcap->defrect = cropcap->bounds; - return 0; -} - -static int vpbe_display_g_fmt(struct file *file, void *priv, - struct v4l2_format *fmt) -{ - struct vpbe_fh *fh = file->private_data; - struct vpbe_layer *layer = fh->layer; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, - "VIDIOC_G_FMT, layer id = %d\n", - layer->device_id); - - /* If buffer type is video output */ - if (V4L2_BUF_TYPE_VIDEO_OUTPUT != fmt->type) { - v4l2_err(&vpbe_dev->v4l2_dev, "invalid type\n"); - return -EINVAL; - } - /* Fill in the information about format */ - fmt->fmt.pix = layer->pix_fmt; - - return 0; -} - -static int vpbe_display_enum_fmt(struct file *file, void *priv, - struct v4l2_fmtdesc *fmt) -{ - struct vpbe_fh *fh = file->private_data; - struct vpbe_layer *layer = fh->layer; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - unsigned int index = 0; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, - "VIDIOC_ENUM_FMT, layer id = %d\n", - layer->device_id); - if (fmt->index > 1) { - v4l2_err(&vpbe_dev->v4l2_dev, "Invalid format index\n"); - return -EINVAL; - } - - /* Fill in the information about format */ - index = fmt->index; - memset(fmt, 0, sizeof(*fmt)); - fmt->index = index; - fmt->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; - if (index == 0) { - strcpy(fmt->description, "YUV 4:2:2 - UYVY"); - fmt->pixelformat = V4L2_PIX_FMT_UYVY; - } else { - strcpy(fmt->description, "Y/CbCr 4:2:0"); - fmt->pixelformat = V4L2_PIX_FMT_NV12; - } - - return 0; -} - -static int vpbe_display_s_fmt(struct file *file, void *priv, - struct v4l2_format *fmt) -{ - struct vpbe_fh *fh = file->private_data; - struct vpbe_layer *layer = fh->layer; - struct vpbe_display *disp_dev = fh->disp_dev; - struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; - struct osd_layer_config *cfg = &layer->layer_info.config; - struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; - struct osd_state *osd_device = disp_dev->osd_device; - int ret; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, - "VIDIOC_S_FMT, layer id = %d\n", - layer->device_id); - - /* If streaming is started, return error */ - if (layer->started) { - v4l2_err(&vpbe_dev->v4l2_dev, "Streaming is started\n"); - return -EBUSY; - } - if (V4L2_BUF_TYPE_VIDEO_OUTPUT != fmt->type) { - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "invalid type\n"); - return -EINVAL; - } - /* Check for valid pixel format */ - ret = vpbe_try_format(disp_dev, pixfmt, 1); - if (ret) - return ret; - - /* YUV420 is requested, check availability of the - other video window */ - - layer->pix_fmt = *pixfmt; - - /* Get osd layer config */ - osd_device->ops.get_layer_config(osd_device, - layer->layer_info.id, cfg); - /* Store the pixel format in the layer object */ - cfg->xsize = pixfmt->width; - cfg->ysize = pixfmt->height; - cfg->line_length = pixfmt->bytesperline; - cfg->ypos = 0; - cfg->xpos = 0; - cfg->interlaced = vpbe_dev->current_timings.interlaced; - - if (V4L2_PIX_FMT_UYVY == pixfmt->pixelformat) - cfg->pixfmt = PIXFMT_YCbCrI; - - /* Change of the default pixel format for both video windows */ - if (V4L2_PIX_FMT_NV12 == pixfmt->pixelformat) { - struct vpbe_layer *otherlayer; - cfg->pixfmt = PIXFMT_NV12; - otherlayer = _vpbe_display_get_other_win_layer(disp_dev, - layer); - otherlayer->layer_info.config.pixfmt = PIXFMT_NV12; - } - - /* Set the layer config in the osd window */ - ret = osd_device->ops.set_layer_config(osd_device, - layer->layer_info.id, cfg); - if (ret < 0) { - v4l2_err(&vpbe_dev->v4l2_dev, - "Error in S_FMT params:\n"); - return -EINVAL; - } - - /* Readback and fill the local copy of current pix format */ - osd_device->ops.get_layer_config(osd_device, - layer->layer_info.id, cfg); - - return 0; -} - -static int vpbe_display_try_fmt(struct file *file, void *priv, - struct v4l2_format *fmt) -{ - struct vpbe_fh *fh = file->private_data; - struct vpbe_display *disp_dev = fh->disp_dev; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_TRY_FMT\n"); - - if (V4L2_BUF_TYPE_VIDEO_OUTPUT != fmt->type) { - v4l2_err(&vpbe_dev->v4l2_dev, "invalid type\n"); - return -EINVAL; - } - - /* Check for valid field format */ - return vpbe_try_format(disp_dev, pixfmt, 0); - -} - -/** - * vpbe_display_s_std - Set the given standard in the encoder - * - * Sets the standard if supported by the current encoder. Return the status. - * 0 - success & -EINVAL on error - */ -static int vpbe_display_s_std(struct file *file, void *priv, - v4l2_std_id *std_id) -{ - struct vpbe_fh *fh = priv; - struct vpbe_layer *layer = fh->layer; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - int ret; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_S_STD\n"); - - /* If streaming is started, return error */ - if (layer->started) { - v4l2_err(&vpbe_dev->v4l2_dev, "Streaming is started\n"); - return -EBUSY; - } - if (NULL != vpbe_dev->ops.s_std) { - ret = vpbe_dev->ops.s_std(vpbe_dev, std_id); - if (ret) { - v4l2_err(&vpbe_dev->v4l2_dev, - "Failed to set standard for sub devices\n"); - return -EINVAL; - } - } else { - return -EINVAL; - } - - return 0; -} - -/** - * vpbe_display_g_std - Get the standard in the current encoder - * - * Get the standard in the current encoder. Return the status. 0 - success - * -EINVAL on error - */ -static int vpbe_display_g_std(struct file *file, void *priv, - v4l2_std_id *std_id) -{ - struct vpbe_fh *fh = priv; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_G_STD\n"); - - /* Get the standard from the current encoder */ - if (vpbe_dev->current_timings.timings_type & VPBE_ENC_STD) { - *std_id = vpbe_dev->current_timings.timings.std_id; - return 0; - } - - return -EINVAL; -} - -/** - * vpbe_display_enum_output - enumerate outputs - * - * Enumerates the outputs available at the vpbe display - * returns the status, -EINVAL if end of output list - */ -static int vpbe_display_enum_output(struct file *file, void *priv, - struct v4l2_output *output) -{ - struct vpbe_fh *fh = priv; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - int ret; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_ENUM_OUTPUT\n"); - - /* Enumerate outputs */ - - if (NULL == vpbe_dev->ops.enum_outputs) - return -EINVAL; - - ret = vpbe_dev->ops.enum_outputs(vpbe_dev, output); - if (ret) { - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, - "Failed to enumerate outputs\n"); - return -EINVAL; - } - - return 0; -} - -/** - * vpbe_display_s_output - Set output to - * the output specified by the index - */ -static int vpbe_display_s_output(struct file *file, void *priv, - unsigned int i) -{ - struct vpbe_fh *fh = priv; - struct vpbe_layer *layer = fh->layer; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - int ret; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_S_OUTPUT\n"); - /* If streaming is started, return error */ - if (layer->started) { - v4l2_err(&vpbe_dev->v4l2_dev, "Streaming is started\n"); - return -EBUSY; - } - if (NULL == vpbe_dev->ops.set_output) - return -EINVAL; - - ret = vpbe_dev->ops.set_output(vpbe_dev, i); - if (ret) { - v4l2_err(&vpbe_dev->v4l2_dev, - "Failed to set output for sub devices\n"); - return -EINVAL; - } - - return 0; -} - -/** - * vpbe_display_g_output - Get output from subdevice - * for a given by the index - */ -static int vpbe_display_g_output(struct file *file, void *priv, - unsigned int *i) -{ - struct vpbe_fh *fh = priv; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_G_OUTPUT\n"); - /* Get the standard from the current encoder */ - *i = vpbe_dev->current_out_index; - - return 0; -} - -/** - * vpbe_display_enum_dv_presets - Enumerate the dv presets - * - * enum the preset in the current encoder. Return the status. 0 - success - * -EINVAL on error - */ -static int -vpbe_display_enum_dv_presets(struct file *file, void *priv, - struct v4l2_dv_enum_preset *preset) -{ - struct vpbe_fh *fh = priv; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - int ret; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_ENUM_DV_PRESETS\n"); - - /* Enumerate outputs */ - if (NULL == vpbe_dev->ops.enum_dv_presets) - return -EINVAL; - - ret = vpbe_dev->ops.enum_dv_presets(vpbe_dev, preset); - if (ret) { - v4l2_err(&vpbe_dev->v4l2_dev, - "Failed to enumerate dv presets info\n"); - return -EINVAL; - } - - return 0; -} - -/** - * vpbe_display_s_dv_preset - Set the dv presets - * - * Set the preset in the current encoder. Return the status. 0 - success - * -EINVAL on error - */ -static int -vpbe_display_s_dv_preset(struct file *file, void *priv, - struct v4l2_dv_preset *preset) -{ - struct vpbe_fh *fh = priv; - struct vpbe_layer *layer = fh->layer; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - int ret; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_S_DV_PRESETS\n"); - - - /* If streaming is started, return error */ - if (layer->started) { - v4l2_err(&vpbe_dev->v4l2_dev, "Streaming is started\n"); - return -EBUSY; - } - - /* Set the given standard in the encoder */ - if (!vpbe_dev->ops.s_dv_preset) - return -EINVAL; - - ret = vpbe_dev->ops.s_dv_preset(vpbe_dev, preset); - if (ret) { - v4l2_err(&vpbe_dev->v4l2_dev, - "Failed to set the dv presets info\n"); - return -EINVAL; - } - /* set the current norm to zero to be consistent. If STD is used - * v4l2 layer will set the norm properly on successful s_std call - */ - layer->video_dev.current_norm = 0; - - return 0; -} - -/** - * vpbe_display_g_dv_preset - Set the dv presets - * - * Get the preset in the current encoder. Return the status. 0 - success - * -EINVAL on error - */ -static int -vpbe_display_g_dv_preset(struct file *file, void *priv, - struct v4l2_dv_preset *dv_preset) -{ - struct vpbe_fh *fh = priv; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_G_DV_PRESETS\n"); - - /* Get the given standard in the encoder */ - - if (vpbe_dev->current_timings.timings_type & - VPBE_ENC_DV_PRESET) { - dv_preset->preset = - vpbe_dev->current_timings.timings.dv_preset; - } else { - return -EINVAL; - } - - return 0; -} - -static int vpbe_display_streamoff(struct file *file, void *priv, - enum v4l2_buf_type buf_type) -{ - struct vpbe_fh *fh = file->private_data; - struct vpbe_layer *layer = fh->layer; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - struct osd_state *osd_device = fh->disp_dev->osd_device; - int ret; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, - "VIDIOC_STREAMOFF,layer id = %d\n", - layer->device_id); - - if (V4L2_BUF_TYPE_VIDEO_OUTPUT != buf_type) { - v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buffer type\n"); - return -EINVAL; - } - - /* If io is allowed for this file handle, return error */ - if (!fh->io_allowed) { - v4l2_err(&vpbe_dev->v4l2_dev, "No io_allowed\n"); - return -EACCES; - } - - /* If streaming is not started, return error */ - if (!layer->started) { - v4l2_err(&vpbe_dev->v4l2_dev, "streaming not started in layer" - " id = %d\n", layer->device_id); - return -EINVAL; - } - - osd_device->ops.disable_layer(osd_device, - layer->layer_info.id); - layer->started = 0; - ret = videobuf_streamoff(&layer->buffer_queue); - - return ret; -} - -static int vpbe_display_streamon(struct file *file, void *priv, - enum v4l2_buf_type buf_type) -{ - struct vpbe_fh *fh = file->private_data; - struct vpbe_layer *layer = fh->layer; - struct vpbe_display *disp_dev = fh->disp_dev; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - struct osd_state *osd_device = disp_dev->osd_device; - int ret; - - osd_device->ops.disable_layer(osd_device, - layer->layer_info.id); - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_STREAMON, layerid=%d\n", - layer->device_id); - - if (V4L2_BUF_TYPE_VIDEO_OUTPUT != buf_type) { - v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buffer type\n"); - return -EINVAL; - } - - /* If file handle is not allowed IO, return error */ - if (!fh->io_allowed) { - v4l2_err(&vpbe_dev->v4l2_dev, "No io_allowed\n"); - return -EACCES; - } - /* If Streaming is already started, return error */ - if (layer->started) { - v4l2_err(&vpbe_dev->v4l2_dev, "layer is already streaming\n"); - return -EBUSY; - } - - /* - * Call videobuf_streamon to start streaming - * in videobuf - */ - ret = videobuf_streamon(&layer->buffer_queue); - if (ret) { - v4l2_err(&vpbe_dev->v4l2_dev, - "error in videobuf_streamon\n"); - return ret; - } - /* If buffer queue is empty, return error */ - if (list_empty(&layer->dma_queue)) { - v4l2_err(&vpbe_dev->v4l2_dev, "buffer queue is empty\n"); - goto streamoff; - } - /* Get the next frame from the buffer queue */ - layer->next_frm = layer->cur_frm = list_entry(layer->dma_queue.next, - struct videobuf_buffer, queue); - /* Remove buffer from the buffer queue */ - list_del(&layer->cur_frm->queue); - /* Mark state of the current frame to active */ - layer->cur_frm->state = VIDEOBUF_ACTIVE; - /* Initialize field_id and started member */ - layer->field_id = 0; - - /* Set parameters in OSD and VENC */ - ret = vpbe_set_osd_display_params(disp_dev, layer); - if (ret < 0) - goto streamoff; - - /* - * if request format is yuv420 semiplanar, need to - * enable both video windows - */ - layer->started = 1; - - layer->layer_first_int = 1; - - return ret; -streamoff: - ret = videobuf_streamoff(&layer->buffer_queue); - return ret; -} - -static int vpbe_display_dqbuf(struct file *file, void *priv, - struct v4l2_buffer *buf) -{ - struct vpbe_fh *fh = file->private_data; - struct vpbe_layer *layer = fh->layer; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - int ret; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, - "VIDIOC_DQBUF, layer id = %d\n", - layer->device_id); - - if (V4L2_BUF_TYPE_VIDEO_OUTPUT != buf->type) { - v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buffer type\n"); - return -EINVAL; - } - /* If this file handle is not allowed to do IO, return error */ - if (!fh->io_allowed) { - v4l2_err(&vpbe_dev->v4l2_dev, "No io_allowed\n"); - return -EACCES; - } - if (file->f_flags & O_NONBLOCK) - /* Call videobuf_dqbuf for non blocking mode */ - ret = videobuf_dqbuf(&layer->buffer_queue, buf, 1); - else - /* Call videobuf_dqbuf for blocking mode */ - ret = videobuf_dqbuf(&layer->buffer_queue, buf, 0); - - return ret; -} - -static int vpbe_display_qbuf(struct file *file, void *priv, - struct v4l2_buffer *p) -{ - struct vpbe_fh *fh = file->private_data; - struct vpbe_layer *layer = fh->layer; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, - "VIDIOC_QBUF, layer id = %d\n", - layer->device_id); - - if (V4L2_BUF_TYPE_VIDEO_OUTPUT != p->type) { - v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buffer type\n"); - return -EINVAL; - } - - /* If this file handle is not allowed to do IO, return error */ - if (!fh->io_allowed) { - v4l2_err(&vpbe_dev->v4l2_dev, "No io_allowed\n"); - return -EACCES; - } - - return videobuf_qbuf(&layer->buffer_queue, p); -} - -static int vpbe_display_querybuf(struct file *file, void *priv, - struct v4l2_buffer *buf) -{ - struct vpbe_fh *fh = file->private_data; - struct vpbe_layer *layer = fh->layer; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - int ret; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, - "VIDIOC_QUERYBUF, layer id = %d\n", - layer->device_id); - - if (V4L2_BUF_TYPE_VIDEO_OUTPUT != buf->type) { - v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buffer type\n"); - return -EINVAL; - } - - /* Call videobuf_querybuf to get information */ - ret = videobuf_querybuf(&layer->buffer_queue, buf); - - return ret; -} - -static int vpbe_display_reqbufs(struct file *file, void *priv, - struct v4l2_requestbuffers *req_buf) -{ - struct vpbe_fh *fh = file->private_data; - struct vpbe_layer *layer = fh->layer; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - int ret; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_display_reqbufs\n"); - - if (V4L2_BUF_TYPE_VIDEO_OUTPUT != req_buf->type) { - v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buffer type\n"); - return -EINVAL; - } - - /* If io users of the layer is not zero, return error */ - if (0 != layer->io_usrs) { - v4l2_err(&vpbe_dev->v4l2_dev, "not IO user\n"); - return -EBUSY; - } - /* Initialize videobuf queue as per the buffer type */ - videobuf_queue_dma_contig_init(&layer->buffer_queue, - &video_qops, - vpbe_dev->pdev, - &layer->irqlock, - V4L2_BUF_TYPE_VIDEO_OUTPUT, - layer->pix_fmt.field, - sizeof(struct videobuf_buffer), - fh, NULL); - - /* Set io allowed member of file handle to TRUE */ - fh->io_allowed = 1; - /* Increment io usrs member of layer object to 1 */ - layer->io_usrs = 1; - /* Store type of memory requested in layer object */ - layer->memory = req_buf->memory; - /* Initialize buffer queue */ - INIT_LIST_HEAD(&layer->dma_queue); - /* Allocate buffers */ - ret = videobuf_reqbufs(&layer->buffer_queue, req_buf); - - return ret; -} - -/* - * vpbe_display_mmap() - * It is used to map kernel space buffers into user spaces - */ -static int vpbe_display_mmap(struct file *filep, struct vm_area_struct *vma) -{ - /* Get the layer object and file handle object */ - struct vpbe_fh *fh = filep->private_data; - struct vpbe_layer *layer = fh->layer; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - int ret; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_display_mmap\n"); - - if (mutex_lock_interruptible(&layer->opslock)) - return -ERESTARTSYS; - ret = videobuf_mmap_mapper(&layer->buffer_queue, vma); - mutex_unlock(&layer->opslock); - return ret; -} - -/* vpbe_display_poll(): It is used for select/poll system call - */ -static unsigned int vpbe_display_poll(struct file *filep, poll_table *wait) -{ - struct vpbe_fh *fh = filep->private_data; - struct vpbe_layer *layer = fh->layer; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - unsigned int err = 0; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_display_poll\n"); - if (layer->started) { - mutex_lock(&layer->opslock); - err = videobuf_poll_stream(filep, &layer->buffer_queue, wait); - mutex_unlock(&layer->opslock); - } - return err; -} - -/* - * vpbe_display_open() - * It creates object of file handle structure and stores it in private_data - * member of filepointer - */ -static int vpbe_display_open(struct file *file) -{ - struct vpbe_fh *fh = NULL; - struct vpbe_layer *layer = video_drvdata(file); - struct vpbe_display *disp_dev = layer->disp_dev; - struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; - struct osd_state *osd_device = disp_dev->osd_device; - int err; - - /* Allocate memory for the file handle object */ - fh = kmalloc(sizeof(struct vpbe_fh), GFP_KERNEL); - if (fh == NULL) { - v4l2_err(&vpbe_dev->v4l2_dev, - "unable to allocate memory for file handle object\n"); - return -ENOMEM; - } - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, - "vpbe display open plane = %d\n", - layer->device_id); - - /* store pointer to fh in private_data member of filep */ - file->private_data = fh; - fh->layer = layer; - fh->disp_dev = disp_dev; - - if (!layer->usrs) { - if (mutex_lock_interruptible(&layer->opslock)) - return -ERESTARTSYS; - /* First claim the layer for this device */ - err = osd_device->ops.request_layer(osd_device, - layer->layer_info.id); - mutex_unlock(&layer->opslock); - if (err < 0) { - /* Couldn't get layer */ - v4l2_err(&vpbe_dev->v4l2_dev, - "Display Manager failed to allocate layer\n"); - kfree(fh); - return -EINVAL; - } - } - /* Increment layer usrs counter */ - layer->usrs++; - /* Set io_allowed member to false */ - fh->io_allowed = 0; - /* Initialize priority of this instance to default priority */ - fh->prio = V4L2_PRIORITY_UNSET; - v4l2_prio_open(&layer->prio, &fh->prio); - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, - "vpbe display device opened successfully\n"); - return 0; -} - -/* - * vpbe_display_release() - * This function deletes buffer queue, frees the buffers and the davinci - * display file * handle - */ -static int vpbe_display_release(struct file *file) -{ - /* Get the layer object and file handle object */ - struct vpbe_fh *fh = file->private_data; - struct vpbe_layer *layer = fh->layer; - struct osd_layer_config *cfg = &layer->layer_info.config; - struct vpbe_display *disp_dev = fh->disp_dev; - struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; - struct osd_state *osd_device = disp_dev->osd_device; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_display_release\n"); - - mutex_lock(&layer->opslock); - /* if this instance is doing IO */ - if (fh->io_allowed) { - /* Reset io_usrs member of layer object */ - layer->io_usrs = 0; - - osd_device->ops.disable_layer(osd_device, - layer->layer_info.id); - layer->started = 0; - /* Free buffers allocated */ - videobuf_queue_cancel(&layer->buffer_queue); - videobuf_mmap_free(&layer->buffer_queue); - } - - /* Decrement layer usrs counter */ - layer->usrs--; - /* If this file handle has initialize encoder device, reset it */ - if (!layer->usrs) { - if (cfg->pixfmt == PIXFMT_NV12) { - struct vpbe_layer *otherlayer; - otherlayer = - _vpbe_display_get_other_win_layer(disp_dev, layer); - osd_device->ops.disable_layer(osd_device, - otherlayer->layer_info.id); - osd_device->ops.release_layer(osd_device, - otherlayer->layer_info.id); - } - osd_device->ops.disable_layer(osd_device, - layer->layer_info.id); - osd_device->ops.release_layer(osd_device, - layer->layer_info.id); - } - /* Close the priority */ - v4l2_prio_close(&layer->prio, fh->prio); - file->private_data = NULL; - mutex_unlock(&layer->opslock); - - /* Free memory allocated to file handle object */ - kfree(fh); - - disp_dev->cbcr_ofst = 0; - - return 0; -} - -#ifdef CONFIG_VIDEO_ADV_DEBUG -static int vpbe_display_g_register(struct file *file, void *priv, - struct v4l2_dbg_register *reg) -{ - struct v4l2_dbg_match *match = ®->match; - struct vpbe_fh *fh = file->private_data; - struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; - - if (match->type >= 2) { - v4l2_subdev_call(vpbe_dev->venc, - core, - g_register, - reg); - } - - return 0; -} - -static int vpbe_display_s_register(struct file *file, void *priv, - struct v4l2_dbg_register *reg) -{ - return 0; -} -#endif - -/* vpbe capture ioctl operations */ -static const struct v4l2_ioctl_ops vpbe_ioctl_ops = { - .vidioc_querycap = vpbe_display_querycap, - .vidioc_g_fmt_vid_out = vpbe_display_g_fmt, - .vidioc_enum_fmt_vid_out = vpbe_display_enum_fmt, - .vidioc_s_fmt_vid_out = vpbe_display_s_fmt, - .vidioc_try_fmt_vid_out = vpbe_display_try_fmt, - .vidioc_reqbufs = vpbe_display_reqbufs, - .vidioc_querybuf = vpbe_display_querybuf, - .vidioc_qbuf = vpbe_display_qbuf, - .vidioc_dqbuf = vpbe_display_dqbuf, - .vidioc_streamon = vpbe_display_streamon, - .vidioc_streamoff = vpbe_display_streamoff, - .vidioc_cropcap = vpbe_display_cropcap, - .vidioc_g_crop = vpbe_display_g_crop, - .vidioc_s_crop = vpbe_display_s_crop, - .vidioc_g_priority = vpbe_display_g_priority, - .vidioc_s_priority = vpbe_display_s_priority, - .vidioc_s_std = vpbe_display_s_std, - .vidioc_g_std = vpbe_display_g_std, - .vidioc_enum_output = vpbe_display_enum_output, - .vidioc_s_output = vpbe_display_s_output, - .vidioc_g_output = vpbe_display_g_output, - .vidioc_s_dv_preset = vpbe_display_s_dv_preset, - .vidioc_g_dv_preset = vpbe_display_g_dv_preset, - .vidioc_enum_dv_presets = vpbe_display_enum_dv_presets, -#ifdef CONFIG_VIDEO_ADV_DEBUG - .vidioc_g_register = vpbe_display_g_register, - .vidioc_s_register = vpbe_display_s_register, -#endif -}; - -static struct v4l2_file_operations vpbe_fops = { - .owner = THIS_MODULE, - .open = vpbe_display_open, - .release = vpbe_display_release, - .unlocked_ioctl = video_ioctl2, - .mmap = vpbe_display_mmap, - .poll = vpbe_display_poll -}; - -static int vpbe_device_get(struct device *dev, void *data) -{ - struct platform_device *pdev = to_platform_device(dev); - struct vpbe_display *vpbe_disp = data; - - if (strcmp("vpbe_controller", pdev->name) == 0) - vpbe_disp->vpbe_dev = platform_get_drvdata(pdev); - - if (strcmp("vpbe-osd", pdev->name) == 0) - vpbe_disp->osd_device = platform_get_drvdata(pdev); - - return 0; -} - -static __devinit int init_vpbe_layer(int i, struct vpbe_display *disp_dev, - struct platform_device *pdev) -{ - struct vpbe_layer *vpbe_display_layer = NULL; - struct video_device *vbd = NULL; - - /* Allocate memory for four plane display objects */ - - disp_dev->dev[i] = - kzalloc(sizeof(struct vpbe_layer), GFP_KERNEL); - - /* If memory allocation fails, return error */ - if (!disp_dev->dev[i]) { - printk(KERN_ERR "ran out of memory\n"); - return -ENOMEM; - } - spin_lock_init(&disp_dev->dev[i]->irqlock); - mutex_init(&disp_dev->dev[i]->opslock); - - /* Get the pointer to the layer object */ - vpbe_display_layer = disp_dev->dev[i]; - vbd = &vpbe_display_layer->video_dev; - /* Initialize field of video device */ - vbd->release = video_device_release_empty; - vbd->fops = &vpbe_fops; - vbd->ioctl_ops = &vpbe_ioctl_ops; - vbd->minor = -1; - vbd->v4l2_dev = &disp_dev->vpbe_dev->v4l2_dev; - vbd->lock = &vpbe_display_layer->opslock; - - if (disp_dev->vpbe_dev->current_timings.timings_type & - VPBE_ENC_STD) { - vbd->tvnorms = (V4L2_STD_525_60 | V4L2_STD_625_50); - vbd->current_norm = - disp_dev->vpbe_dev-> - current_timings.timings.std_id; - } else - vbd->current_norm = 0; - - snprintf(vbd->name, sizeof(vbd->name), - "DaVinci_VPBE Display_DRIVER_V%d.%d.%d", - (VPBE_DISPLAY_VERSION_CODE >> 16) & 0xff, - (VPBE_DISPLAY_VERSION_CODE >> 8) & 0xff, - (VPBE_DISPLAY_VERSION_CODE) & 0xff); - - vpbe_display_layer->device_id = i; - - vpbe_display_layer->layer_info.id = - ((i == VPBE_DISPLAY_DEVICE_0) ? WIN_VID0 : WIN_VID1); - - /* Initialize prio member of layer object */ - v4l2_prio_init(&vpbe_display_layer->prio); - - return 0; -} - -static __devinit int register_device(struct vpbe_layer *vpbe_display_layer, - struct vpbe_display *disp_dev, - struct platform_device *pdev) { - int err; - - v4l2_info(&disp_dev->vpbe_dev->v4l2_dev, - "Trying to register VPBE display device.\n"); - v4l2_info(&disp_dev->vpbe_dev->v4l2_dev, - "layer=%x,layer->video_dev=%x\n", - (int)vpbe_display_layer, - (int)&vpbe_display_layer->video_dev); - - err = video_register_device(&vpbe_display_layer->video_dev, - VFL_TYPE_GRABBER, - -1); - if (err) - return -ENODEV; - - vpbe_display_layer->disp_dev = disp_dev; - /* set the driver data in platform device */ - platform_set_drvdata(pdev, disp_dev); - video_set_drvdata(&vpbe_display_layer->video_dev, - vpbe_display_layer); - - return 0; -} - - - -/* - * vpbe_display_probe() - * This function creates device entries by register itself to the V4L2 driver - * and initializes fields of each layer objects - */ -static __devinit int vpbe_display_probe(struct platform_device *pdev) -{ - struct vpbe_layer *vpbe_display_layer; - struct vpbe_display *disp_dev; - struct resource *res = NULL; - int k; - int i; - int err; - int irq; - - printk(KERN_DEBUG "vpbe_display_probe\n"); - /* Allocate memory for vpbe_display */ - disp_dev = kzalloc(sizeof(struct vpbe_display), GFP_KERNEL); - if (!disp_dev) { - printk(KERN_ERR "ran out of memory\n"); - return -ENOMEM; - } - - spin_lock_init(&disp_dev->dma_queue_lock); - /* - * Scan all the platform devices to find the vpbe - * controller device and get the vpbe_dev object - */ - err = bus_for_each_dev(&platform_bus_type, NULL, disp_dev, - vpbe_device_get); - if (err < 0) - return err; - /* Initialize the vpbe display controller */ - if (NULL != disp_dev->vpbe_dev->ops.initialize) { - err = disp_dev->vpbe_dev->ops.initialize(&pdev->dev, - disp_dev->vpbe_dev); - if (err) { - v4l2_err(&disp_dev->vpbe_dev->v4l2_dev, - "Error initing vpbe\n"); - err = -ENOMEM; - goto probe_out; - } - } - - for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) { - if (init_vpbe_layer(i, disp_dev, pdev)) { - err = -ENODEV; - goto probe_out; - } - } - - res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (!res) { - v4l2_err(&disp_dev->vpbe_dev->v4l2_dev, - "Unable to get VENC interrupt resource\n"); - err = -ENODEV; - goto probe_out; - } - - irq = res->start; - if (request_irq(irq, venc_isr, IRQF_DISABLED, VPBE_DISPLAY_DRIVER, - disp_dev)) { - v4l2_err(&disp_dev->vpbe_dev->v4l2_dev, - "Unable to request interrupt\n"); - err = -ENODEV; - goto probe_out; - } - - for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) { - if (register_device(disp_dev->dev[i], disp_dev, pdev)) { - err = -ENODEV; - goto probe_out_irq; - } - } - - printk(KERN_DEBUG "Successfully completed the probing of vpbe v4l2 device\n"); - return 0; - -probe_out_irq: - free_irq(res->start, disp_dev); -probe_out: - for (k = 0; k < VPBE_DISPLAY_MAX_DEVICES; k++) { - /* Get the pointer to the layer object */ - vpbe_display_layer = disp_dev->dev[k]; - /* Unregister video device */ - if (vpbe_display_layer) { - video_unregister_device( - &vpbe_display_layer->video_dev); - kfree(disp_dev->dev[k]); - } - } - kfree(disp_dev); - return err; -} - -/* - * vpbe_display_remove() - * It un-register hardware layer from V4L2 driver - */ -static int vpbe_display_remove(struct platform_device *pdev) -{ - struct vpbe_layer *vpbe_display_layer; - struct vpbe_display *disp_dev = platform_get_drvdata(pdev); - struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; - struct resource *res; - int i; - - v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_display_remove\n"); - - /* unregister irq */ - res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - free_irq(res->start, disp_dev); - - /* deinitialize the vpbe display controller */ - if (NULL != vpbe_dev->ops.deinitialize) - vpbe_dev->ops.deinitialize(&pdev->dev, vpbe_dev); - /* un-register device */ - for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) { - /* Get the pointer to the layer object */ - vpbe_display_layer = disp_dev->dev[i]; - /* Unregister video device */ - video_unregister_device(&vpbe_display_layer->video_dev); - - } - for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) { - kfree(disp_dev->dev[i]); - disp_dev->dev[i] = NULL; - } - - return 0; -} - -static struct platform_driver vpbe_display_driver = { - .driver = { - .name = VPBE_DISPLAY_DRIVER, - .owner = THIS_MODULE, - .bus = &platform_bus_type, - }, - .probe = vpbe_display_probe, - .remove = __devexit_p(vpbe_display_remove), -}; - -module_platform_driver(vpbe_display_driver); - -MODULE_DESCRIPTION("TI DM644x/DM355/DM365 VPBE Display controller"); -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Texas Instruments"); |