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path: root/drivers/media/video/davinci/vpbe_display.c
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Diffstat (limited to 'drivers/media/video/davinci/vpbe_display.c')
-rw-r--r--drivers/media/video/davinci/vpbe_display.c1838
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 = &reg->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");