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1512 lines
40 KiB
1512 lines
40 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Copyright (C) 2010 Texas Instruments Incorporated - https://www.ti.com/ |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/init.h> |
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#include <linux/module.h> |
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#include <linux/errno.h> |
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#include <linux/interrupt.h> |
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#include <linux/string.h> |
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#include <linux/wait.h> |
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#include <linux/time.h> |
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#include <linux/platform_device.h> |
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#include <linux/irq.h> |
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#include <linux/mm.h> |
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#include <linux/mutex.h> |
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#include <linux/videodev2.h> |
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#include <linux/slab.h> |
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#include <media/v4l2-dev.h> |
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#include <media/v4l2-common.h> |
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#include <media/v4l2-ioctl.h> |
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#include <media/v4l2-device.h> |
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#include <media/davinci/vpbe_display.h> |
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#include <media/davinci/vpbe_types.h> |
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#include <media/davinci/vpbe.h> |
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#include <media/davinci/vpbe_venc.h> |
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#include <media/davinci/vpbe_osd.h> |
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#include "vpbe_venc_regs.h" |
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#define VPBE_DISPLAY_DRIVER "vpbe-v4l2" |
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static int debug; |
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#define VPBE_DEFAULT_NUM_BUFS 3 |
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module_param(debug, int, 0644); |
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static int vpbe_set_osd_display_params(struct vpbe_display *disp_dev, |
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struct vpbe_layer *layer); |
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static int venc_is_second_field(struct vpbe_display *disp_dev) |
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{ |
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struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; |
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int ret, val; |
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ret = v4l2_subdev_call(vpbe_dev->venc, |
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core, |
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command, |
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VENC_GET_FLD, |
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&val); |
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if (ret < 0) { |
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v4l2_err(&vpbe_dev->v4l2_dev, |
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"Error in getting Field ID 0\n"); |
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return 1; |
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} |
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return val; |
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} |
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static void vpbe_isr_even_field(struct vpbe_display *disp_obj, |
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struct vpbe_layer *layer) |
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{ |
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if (layer->cur_frm == layer->next_frm) |
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return; |
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|
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layer->cur_frm->vb.vb2_buf.timestamp = ktime_get_ns(); |
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vb2_buffer_done(&layer->cur_frm->vb.vb2_buf, VB2_BUF_STATE_DONE); |
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/* Make cur_frm pointing to next_frm */ |
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layer->cur_frm = layer->next_frm; |
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} |
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static void vpbe_isr_odd_field(struct vpbe_display *disp_obj, |
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struct vpbe_layer *layer) |
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{ |
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struct osd_state *osd_device = disp_obj->osd_device; |
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unsigned long addr; |
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spin_lock(&disp_obj->dma_queue_lock); |
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if (list_empty(&layer->dma_queue) || |
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(layer->cur_frm != layer->next_frm)) { |
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spin_unlock(&disp_obj->dma_queue_lock); |
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return; |
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} |
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/* |
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* one field is displayed configure |
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* the next frame if it is available |
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* otherwise hold on current frame |
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* Get next from the buffer queue |
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*/ |
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layer->next_frm = list_entry(layer->dma_queue.next, |
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struct vpbe_disp_buffer, list); |
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/* Remove that from the buffer queue */ |
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list_del(&layer->next_frm->list); |
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spin_unlock(&disp_obj->dma_queue_lock); |
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/* Mark state of the frame to active */ |
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layer->next_frm->vb.vb2_buf.state = VB2_BUF_STATE_ACTIVE; |
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addr = vb2_dma_contig_plane_dma_addr(&layer->next_frm->vb.vb2_buf, 0); |
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osd_device->ops.start_layer(osd_device, |
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layer->layer_info.id, |
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addr, |
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disp_obj->cbcr_ofst); |
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} |
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|
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/* interrupt service routine */ |
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static irqreturn_t venc_isr(int irq, void *arg) |
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{ |
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struct vpbe_display *disp_dev = (struct vpbe_display *)arg; |
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struct vpbe_layer *layer; |
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static unsigned last_event; |
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unsigned event = 0; |
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int fid; |
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int i; |
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if (!arg || !disp_dev->dev[0]) |
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return IRQ_HANDLED; |
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if (venc_is_second_field(disp_dev)) |
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event |= VENC_SECOND_FIELD; |
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else |
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event |= VENC_FIRST_FIELD; |
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if (event == (last_event & ~VENC_END_OF_FRAME)) { |
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/* |
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* If the display is non-interlaced, then we need to flag the |
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* end-of-frame event at every interrupt regardless of the |
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* value of the FIDST bit. We can conclude that the display is |
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* non-interlaced if the value of the FIDST bit is unchanged |
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* from the previous interrupt. |
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*/ |
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event |= VENC_END_OF_FRAME; |
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} else if (event == VENC_SECOND_FIELD) { |
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/* end-of-frame for interlaced display */ |
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event |= VENC_END_OF_FRAME; |
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} |
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last_event = event; |
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for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) { |
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layer = disp_dev->dev[i]; |
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if (!vb2_start_streaming_called(&layer->buffer_queue)) |
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continue; |
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if (layer->layer_first_int) { |
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layer->layer_first_int = 0; |
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continue; |
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} |
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/* Check the field format */ |
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if ((V4L2_FIELD_NONE == layer->pix_fmt.field) && |
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(event & VENC_END_OF_FRAME)) { |
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/* Progressive mode */ |
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vpbe_isr_even_field(disp_dev, layer); |
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vpbe_isr_odd_field(disp_dev, layer); |
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} else { |
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/* Interlaced mode */ |
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layer->field_id ^= 1; |
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if (event & VENC_FIRST_FIELD) |
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fid = 0; |
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else |
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fid = 1; |
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/* |
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* If field id does not match with store |
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* field id |
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*/ |
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if (fid != layer->field_id) { |
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/* Make them in sync */ |
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layer->field_id = fid; |
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continue; |
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} |
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/* |
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* device field id and local field id are |
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* in sync. If this is even field |
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*/ |
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if (0 == fid) |
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vpbe_isr_even_field(disp_dev, layer); |
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else /* odd field */ |
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vpbe_isr_odd_field(disp_dev, layer); |
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} |
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} |
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return IRQ_HANDLED; |
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} |
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/* |
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* vpbe_buffer_prepare() |
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* This is the callback function called from vb2_qbuf() function |
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* the buffer is prepared and user space virtual address is converted into |
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* physical address |
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*/ |
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static int vpbe_buffer_prepare(struct vb2_buffer *vb) |
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{ |
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struct vb2_queue *q = vb->vb2_queue; |
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struct vpbe_layer *layer = vb2_get_drv_priv(q); |
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struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; |
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unsigned long addr; |
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v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, |
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"vpbe_buffer_prepare\n"); |
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vb2_set_plane_payload(vb, 0, layer->pix_fmt.sizeimage); |
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if (vb2_get_plane_payload(vb, 0) > vb2_plane_size(vb, 0)) |
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return -EINVAL; |
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addr = vb2_dma_contig_plane_dma_addr(vb, 0); |
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if (!IS_ALIGNED(addr, 8)) { |
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v4l2_err(&vpbe_dev->v4l2_dev, |
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"buffer_prepare:offset is not aligned to 32 bytes\n"); |
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return -EINVAL; |
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} |
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return 0; |
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} |
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/* |
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* vpbe_buffer_setup() |
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* This function allocates memory for the buffers |
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*/ |
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static int |
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vpbe_buffer_queue_setup(struct vb2_queue *vq, |
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unsigned int *nbuffers, unsigned int *nplanes, |
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unsigned int sizes[], struct device *alloc_devs[]) |
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{ |
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/* Get the file handle object and layer object */ |
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struct vpbe_layer *layer = vb2_get_drv_priv(vq); |
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struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; |
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v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_buffer_setup\n"); |
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/* Store number of buffers allocated in numbuffer member */ |
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if (vq->num_buffers + *nbuffers < VPBE_DEFAULT_NUM_BUFS) |
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*nbuffers = VPBE_DEFAULT_NUM_BUFS - vq->num_buffers; |
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if (*nplanes) |
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return sizes[0] < layer->pix_fmt.sizeimage ? -EINVAL : 0; |
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*nplanes = 1; |
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sizes[0] = layer->pix_fmt.sizeimage; |
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return 0; |
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} |
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/* |
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* vpbe_buffer_queue() |
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* This function adds the buffer to DMA queue |
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*/ |
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static void vpbe_buffer_queue(struct vb2_buffer *vb) |
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{ |
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struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
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/* Get the file handle object and layer object */ |
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struct vpbe_disp_buffer *buf = container_of(vbuf, |
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struct vpbe_disp_buffer, vb); |
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struct vpbe_layer *layer = vb2_get_drv_priv(vb->vb2_queue); |
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struct vpbe_display *disp = layer->disp_dev; |
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struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; |
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unsigned long flags; |
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v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, |
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"vpbe_buffer_queue\n"); |
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/* add the buffer to the DMA queue */ |
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spin_lock_irqsave(&disp->dma_queue_lock, flags); |
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list_add_tail(&buf->list, &layer->dma_queue); |
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spin_unlock_irqrestore(&disp->dma_queue_lock, flags); |
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} |
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static int vpbe_start_streaming(struct vb2_queue *vq, unsigned int count) |
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{ |
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struct vpbe_layer *layer = vb2_get_drv_priv(vq); |
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struct osd_state *osd_device = layer->disp_dev->osd_device; |
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int ret; |
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osd_device->ops.disable_layer(osd_device, layer->layer_info.id); |
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|
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/* Get the next frame from the buffer queue */ |
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layer->next_frm = layer->cur_frm = list_entry(layer->dma_queue.next, |
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struct vpbe_disp_buffer, list); |
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/* Remove buffer from the buffer queue */ |
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list_del(&layer->cur_frm->list); |
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/* Mark state of the current frame to active */ |
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layer->cur_frm->vb.vb2_buf.state = VB2_BUF_STATE_ACTIVE; |
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/* Initialize field_id and started member */ |
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layer->field_id = 0; |
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/* Set parameters in OSD and VENC */ |
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ret = vpbe_set_osd_display_params(layer->disp_dev, layer); |
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if (ret < 0) { |
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struct vpbe_disp_buffer *buf, *tmp; |
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vb2_buffer_done(&layer->cur_frm->vb.vb2_buf, |
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VB2_BUF_STATE_QUEUED); |
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list_for_each_entry_safe(buf, tmp, &layer->dma_queue, list) { |
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list_del(&buf->list); |
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vb2_buffer_done(&buf->vb.vb2_buf, |
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VB2_BUF_STATE_QUEUED); |
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} |
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return ret; |
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} |
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/* |
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* if request format is yuv420 semiplanar, need to |
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* enable both video windows |
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*/ |
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layer->layer_first_int = 1; |
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return ret; |
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} |
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static void vpbe_stop_streaming(struct vb2_queue *vq) |
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{ |
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struct vpbe_layer *layer = vb2_get_drv_priv(vq); |
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struct osd_state *osd_device = layer->disp_dev->osd_device; |
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struct vpbe_display *disp = layer->disp_dev; |
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unsigned long flags; |
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if (!vb2_is_streaming(vq)) |
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return; |
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osd_device->ops.disable_layer(osd_device, layer->layer_info.id); |
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/* release all active buffers */ |
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spin_lock_irqsave(&disp->dma_queue_lock, flags); |
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if (layer->cur_frm == layer->next_frm) { |
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vb2_buffer_done(&layer->cur_frm->vb.vb2_buf, |
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VB2_BUF_STATE_ERROR); |
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} else { |
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if (layer->cur_frm) |
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vb2_buffer_done(&layer->cur_frm->vb.vb2_buf, |
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VB2_BUF_STATE_ERROR); |
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if (layer->next_frm) |
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vb2_buffer_done(&layer->next_frm->vb.vb2_buf, |
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VB2_BUF_STATE_ERROR); |
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} |
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|
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while (!list_empty(&layer->dma_queue)) { |
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layer->next_frm = list_entry(layer->dma_queue.next, |
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struct vpbe_disp_buffer, list); |
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list_del(&layer->next_frm->list); |
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vb2_buffer_done(&layer->next_frm->vb.vb2_buf, |
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VB2_BUF_STATE_ERROR); |
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} |
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spin_unlock_irqrestore(&disp->dma_queue_lock, flags); |
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} |
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static const struct vb2_ops video_qops = { |
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.queue_setup = vpbe_buffer_queue_setup, |
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.wait_prepare = vb2_ops_wait_prepare, |
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.wait_finish = vb2_ops_wait_finish, |
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.buf_prepare = vpbe_buffer_prepare, |
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.start_streaming = vpbe_start_streaming, |
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.stop_streaming = vpbe_stop_streaming, |
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.buf_queue = vpbe_buffer_queue, |
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}; |
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|
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static |
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struct vpbe_layer* |
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_vpbe_display_get_other_win_layer(struct vpbe_display *disp_dev, |
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struct vpbe_layer *layer) |
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{ |
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enum vpbe_display_device_id thiswin, otherwin; |
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thiswin = layer->device_id; |
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|
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otherwin = (thiswin == VPBE_DISPLAY_DEVICE_0) ? |
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VPBE_DISPLAY_DEVICE_1 : VPBE_DISPLAY_DEVICE_0; |
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return disp_dev->dev[otherwin]; |
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} |
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|
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static int vpbe_set_osd_display_params(struct vpbe_display *disp_dev, |
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struct vpbe_layer *layer) |
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{ |
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struct osd_layer_config *cfg = &layer->layer_info.config; |
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struct osd_state *osd_device = disp_dev->osd_device; |
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struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; |
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unsigned long addr; |
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int ret; |
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|
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addr = vb2_dma_contig_plane_dma_addr(&layer->cur_frm->vb.vb2_buf, 0); |
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/* Set address in the display registers */ |
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osd_device->ops.start_layer(osd_device, |
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layer->layer_info.id, |
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addr, |
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disp_dev->cbcr_ofst); |
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|
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ret = osd_device->ops.enable_layer(osd_device, |
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layer->layer_info.id, 0); |
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if (ret < 0) { |
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v4l2_err(&vpbe_dev->v4l2_dev, |
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"Error in enabling osd window layer 0\n"); |
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return -1; |
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} |
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|
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/* Enable the window */ |
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layer->layer_info.enable = 1; |
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if (cfg->pixfmt == PIXFMT_NV12) { |
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struct vpbe_layer *otherlayer = |
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_vpbe_display_get_other_win_layer(disp_dev, layer); |
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|
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ret = osd_device->ops.enable_layer(osd_device, |
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otherlayer->layer_info.id, 1); |
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if (ret < 0) { |
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v4l2_err(&vpbe_dev->v4l2_dev, |
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"Error in enabling osd window layer 1\n"); |
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return -1; |
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} |
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otherlayer->layer_info.enable = 1; |
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} |
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return 0; |
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} |
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|
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static void |
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vpbe_disp_calculate_scale_factor(struct vpbe_display *disp_dev, |
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struct vpbe_layer *layer, |
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int expected_xsize, int expected_ysize) |
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{ |
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struct display_layer_info *layer_info = &layer->layer_info; |
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struct v4l2_pix_format *pixfmt = &layer->pix_fmt; |
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struct osd_layer_config *cfg = &layer->layer_info.config; |
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struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; |
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int calculated_xsize; |
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int h_exp = 0; |
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int v_exp = 0; |
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int h_scale; |
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int v_scale; |
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|
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v4l2_std_id standard_id = vpbe_dev->current_timings.std_id; |
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|
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/* |
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* Application initially set the image format. Current display |
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* size is obtained from the vpbe display controller. expected_xsize |
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* and expected_ysize are set through S_SELECTION ioctl. Based on this, |
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* driver will calculate the scale factors for vertical and |
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* horizontal direction so that the image is displayed scaled |
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* and expanded. Application uses expansion to display the image |
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* in a square pixel. Otherwise it is displayed using displays |
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* pixel aspect ratio.It is expected that application chooses |
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* the crop coordinates for cropped or scaled display. if crop |
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* size is less than the image size, it is displayed cropped or |
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* it is displayed scaled and/or expanded. |
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* |
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* to begin with, set the crop window same as expected. Later we |
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* will override with scaled window size |
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*/ |
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|
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cfg->xsize = pixfmt->width; |
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cfg->ysize = pixfmt->height; |
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layer_info->h_zoom = ZOOM_X1; /* no horizontal zoom */ |
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layer_info->v_zoom = ZOOM_X1; /* no horizontal zoom */ |
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layer_info->h_exp = H_EXP_OFF; /* no horizontal zoom */ |
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layer_info->v_exp = V_EXP_OFF; /* no horizontal zoom */ |
|
|
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if (pixfmt->width < expected_xsize) { |
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h_scale = vpbe_dev->current_timings.xres / pixfmt->width; |
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if (h_scale < 2) |
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h_scale = 1; |
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else if (h_scale >= 4) |
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h_scale = 4; |
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else |
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h_scale = 2; |
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cfg->xsize *= h_scale; |
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if (cfg->xsize < expected_xsize) { |
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if ((standard_id & V4L2_STD_525_60) || |
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(standard_id & V4L2_STD_625_50)) { |
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calculated_xsize = (cfg->xsize * |
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VPBE_DISPLAY_H_EXP_RATIO_N) / |
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VPBE_DISPLAY_H_EXP_RATIO_D; |
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if (calculated_xsize <= expected_xsize) { |
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h_exp = 1; |
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cfg->xsize = calculated_xsize; |
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} |
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} |
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} |
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if (h_scale == 2) |
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layer_info->h_zoom = ZOOM_X2; |
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else if (h_scale == 4) |
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layer_info->h_zoom = ZOOM_X4; |
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if (h_exp) |
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layer_info->h_exp = H_EXP_9_OVER_8; |
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} else { |
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/* no scaling, only cropping. Set display area to crop area */ |
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cfg->xsize = expected_xsize; |
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} |
|
|
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if (pixfmt->height < expected_ysize) { |
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v_scale = expected_ysize / pixfmt->height; |
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if (v_scale < 2) |
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v_scale = 1; |
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else if (v_scale >= 4) |
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v_scale = 4; |
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else |
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v_scale = 2; |
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cfg->ysize *= v_scale; |
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if (cfg->ysize < expected_ysize) { |
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if ((standard_id & V4L2_STD_625_50)) { |
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calculated_xsize = (cfg->ysize * |
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VPBE_DISPLAY_V_EXP_RATIO_N) / |
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VPBE_DISPLAY_V_EXP_RATIO_D; |
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if (calculated_xsize <= expected_ysize) { |
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v_exp = 1; |
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cfg->ysize = calculated_xsize; |
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} |
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} |
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} |
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if (v_scale == 2) |
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layer_info->v_zoom = ZOOM_X2; |
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else if (v_scale == 4) |
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layer_info->v_zoom = ZOOM_X4; |
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if (v_exp) |
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layer_info->v_exp = V_EXP_6_OVER_5; |
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} else { |
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/* no scaling, only cropping. Set display area to crop area */ |
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cfg->ysize = expected_ysize; |
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} |
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v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, |
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"crop display xsize = %d, ysize = %d\n", |
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cfg->xsize, cfg->ysize); |
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} |
|
|
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static void vpbe_disp_adj_position(struct vpbe_display *disp_dev, |
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struct vpbe_layer *layer, |
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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_querycap(struct file *file, void *priv, |
|
struct v4l2_capability *cap) |
|
{ |
|
struct vpbe_layer *layer = video_drvdata(file); |
|
struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; |
|
|
|
snprintf(cap->driver, sizeof(cap->driver), "%s", |
|
dev_name(vpbe_dev->pdev)); |
|
snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s", |
|
dev_name(vpbe_dev->pdev)); |
|
strscpy(cap->card, vpbe_dev->cfg->module_name, sizeof(cap->card)); |
|
|
|
return 0; |
|
} |
|
|
|
static int vpbe_display_s_selection(struct file *file, void *priv, |
|
struct v4l2_selection *sel) |
|
{ |
|
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_layer_config *cfg = &layer->layer_info.config; |
|
struct osd_state *osd_device = disp_dev->osd_device; |
|
struct v4l2_rect rect = sel->r; |
|
int ret; |
|
|
|
v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, |
|
"VIDIOC_S_SELECTION, layer id = %d\n", layer->device_id); |
|
|
|
if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT || |
|
sel->target != V4L2_SEL_TGT_CROP) |
|
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); |
|
|
|
sel->r = rect; |
|
return 0; |
|
} |
|
|
|
static int vpbe_display_g_selection(struct file *file, void *priv, |
|
struct v4l2_selection *sel) |
|
{ |
|
struct vpbe_layer *layer = video_drvdata(file); |
|
struct osd_layer_config *cfg = &layer->layer_info.config; |
|
struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; |
|
struct osd_state *osd_device = layer->disp_dev->osd_device; |
|
struct v4l2_rect *rect = &sel->r; |
|
|
|
v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, |
|
"VIDIOC_G_SELECTION, layer id = %d\n", |
|
layer->device_id); |
|
|
|
if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) |
|
return -EINVAL; |
|
|
|
switch (sel->target) { |
|
case V4L2_SEL_TGT_CROP: |
|
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; |
|
break; |
|
case V4L2_SEL_TGT_CROP_DEFAULT: |
|
case V4L2_SEL_TGT_CROP_BOUNDS: |
|
rect->left = 0; |
|
rect->top = 0; |
|
rect->width = vpbe_dev->current_timings.xres; |
|
rect->height = vpbe_dev->current_timings.yres; |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int vpbe_display_g_pixelaspect(struct file *file, void *priv, |
|
int type, struct v4l2_fract *f) |
|
{ |
|
struct vpbe_layer *layer = video_drvdata(file); |
|
struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; |
|
|
|
v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_CROPCAP ioctl\n"); |
|
|
|
if (type != V4L2_BUF_TYPE_VIDEO_OUTPUT) |
|
return -EINVAL; |
|
|
|
*f = vpbe_dev->current_timings.aspect; |
|
return 0; |
|
} |
|
|
|
static int vpbe_display_g_fmt(struct file *file, void *priv, |
|
struct v4l2_format *fmt) |
|
{ |
|
struct vpbe_layer *layer = video_drvdata(file); |
|
struct vpbe_device *vpbe_dev = layer->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_layer *layer = video_drvdata(file); |
|
struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; |
|
|
|
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 */ |
|
if (fmt->index == 0) |
|
fmt->pixelformat = V4L2_PIX_FMT_UYVY; |
|
else |
|
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_layer *layer = video_drvdata(file); |
|
struct vpbe_display *disp_dev = layer->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 (vb2_is_busy(&layer->buffer_queue)) |
|
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; |
|
if (pixfmt->pixelformat == V4L2_PIX_FMT_NV12) { |
|
struct vpbe_layer *otherlayer; |
|
|
|
otherlayer = _vpbe_display_get_other_win_layer(disp_dev, layer); |
|
/* if other layer is available, only |
|
* claim it, do not configure it |
|
*/ |
|
ret = osd_device->ops.request_layer(osd_device, |
|
otherlayer->layer_info.id); |
|
if (ret < 0) { |
|
v4l2_err(&vpbe_dev->v4l2_dev, |
|
"Display Manager failed to allocate layer\n"); |
|
return -EBUSY; |
|
} |
|
} |
|
|
|
/* 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_layer *layer = video_drvdata(file); |
|
struct vpbe_display *disp_dev = layer->disp_dev; |
|
struct vpbe_device *vpbe_dev = layer->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_layer *layer = video_drvdata(file); |
|
struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; |
|
int ret; |
|
|
|
v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_S_STD\n"); |
|
|
|
if (vb2_is_busy(&layer->buffer_queue)) |
|
return -EBUSY; |
|
|
|
if (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_layer *layer = video_drvdata(file); |
|
struct vpbe_device *vpbe_dev = layer->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.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_layer *layer = video_drvdata(file); |
|
struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; |
|
int ret; |
|
|
|
v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_ENUM_OUTPUT\n"); |
|
|
|
/* Enumerate outputs */ |
|
if (!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_layer *layer = video_drvdata(file); |
|
struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; |
|
int ret; |
|
|
|
v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_S_OUTPUT\n"); |
|
|
|
if (vb2_is_busy(&layer->buffer_queue)) |
|
return -EBUSY; |
|
|
|
if (!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_layer *layer = video_drvdata(file); |
|
struct vpbe_device *vpbe_dev = layer->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_timings - Enumerate the dv timings |
|
* |
|
* enum the timings in the current encoder. Return the status. 0 - success |
|
* -EINVAL on error |
|
*/ |
|
static int |
|
vpbe_display_enum_dv_timings(struct file *file, void *priv, |
|
struct v4l2_enum_dv_timings *timings) |
|
{ |
|
struct vpbe_layer *layer = video_drvdata(file); |
|
struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; |
|
int ret; |
|
|
|
v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_ENUM_DV_TIMINGS\n"); |
|
|
|
/* Enumerate outputs */ |
|
if (!vpbe_dev->ops.enum_dv_timings) |
|
return -EINVAL; |
|
|
|
ret = vpbe_dev->ops.enum_dv_timings(vpbe_dev, timings); |
|
if (ret) { |
|
v4l2_err(&vpbe_dev->v4l2_dev, |
|
"Failed to enumerate dv timings info\n"); |
|
return -EINVAL; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
/* |
|
* vpbe_display_s_dv_timings - Set the dv timings |
|
* |
|
* Set the timings in the current encoder. Return the status. 0 - success |
|
* -EINVAL on error |
|
*/ |
|
static int |
|
vpbe_display_s_dv_timings(struct file *file, void *priv, |
|
struct v4l2_dv_timings *timings) |
|
{ |
|
struct vpbe_layer *layer = video_drvdata(file); |
|
struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; |
|
int ret; |
|
|
|
v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_S_DV_TIMINGS\n"); |
|
|
|
if (vb2_is_busy(&layer->buffer_queue)) |
|
return -EBUSY; |
|
|
|
/* Set the given standard in the encoder */ |
|
if (!vpbe_dev->ops.s_dv_timings) |
|
return -EINVAL; |
|
|
|
ret = vpbe_dev->ops.s_dv_timings(vpbe_dev, timings); |
|
if (ret) { |
|
v4l2_err(&vpbe_dev->v4l2_dev, |
|
"Failed to set the dv timings info\n"); |
|
return -EINVAL; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
/* |
|
* vpbe_display_g_dv_timings - Set the dv timings |
|
* |
|
* Get the timings in the current encoder. Return the status. 0 - success |
|
* -EINVAL on error |
|
*/ |
|
static int |
|
vpbe_display_g_dv_timings(struct file *file, void *priv, |
|
struct v4l2_dv_timings *dv_timings) |
|
{ |
|
struct vpbe_layer *layer = video_drvdata(file); |
|
struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; |
|
|
|
v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_G_DV_TIMINGS\n"); |
|
|
|
/* Get the given standard in the encoder */ |
|
|
|
if (vpbe_dev->current_timings.timings_type & |
|
VPBE_ENC_DV_TIMINGS) { |
|
*dv_timings = vpbe_dev->current_timings.dv_timings; |
|
} else { |
|
return -EINVAL; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
/* |
|
* 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_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; |
|
|
|
/* creating context for file descriptor */ |
|
err = v4l2_fh_open(file); |
|
if (err) { |
|
v4l2_err(&vpbe_dev->v4l2_dev, "v4l2_fh_open failed\n"); |
|
return err; |
|
} |
|
|
|
/* leaving if layer is already initialized */ |
|
if (!v4l2_fh_is_singular_file(file)) |
|
return err; |
|
|
|
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"); |
|
v4l2_fh_release(file); |
|
return -EINVAL; |
|
} |
|
} |
|
/* Increment layer usrs counter */ |
|
layer->usrs++; |
|
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) |
|
{ |
|
struct vpbe_layer *layer = video_drvdata(file); |
|
struct osd_layer_config *cfg = &layer->layer_info.config; |
|
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; |
|
|
|
v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_display_release\n"); |
|
|
|
mutex_lock(&layer->opslock); |
|
|
|
osd_device->ops.disable_layer(osd_device, |
|
layer->layer_info.id); |
|
/* 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); |
|
} |
|
|
|
_vb2_fop_release(file, NULL); |
|
mutex_unlock(&layer->opslock); |
|
|
|
disp_dev->cbcr_ofst = 0; |
|
|
|
return 0; |
|
} |
|
|
|
/* 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 = vb2_ioctl_reqbufs, |
|
.vidioc_create_bufs = vb2_ioctl_create_bufs, |
|
.vidioc_querybuf = vb2_ioctl_querybuf, |
|
.vidioc_qbuf = vb2_ioctl_qbuf, |
|
.vidioc_dqbuf = vb2_ioctl_dqbuf, |
|
.vidioc_streamon = vb2_ioctl_streamon, |
|
.vidioc_streamoff = vb2_ioctl_streamoff, |
|
.vidioc_expbuf = vb2_ioctl_expbuf, |
|
|
|
.vidioc_g_pixelaspect = vpbe_display_g_pixelaspect, |
|
.vidioc_g_selection = vpbe_display_g_selection, |
|
.vidioc_s_selection = vpbe_display_s_selection, |
|
|
|
.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_timings = vpbe_display_s_dv_timings, |
|
.vidioc_g_dv_timings = vpbe_display_g_dv_timings, |
|
.vidioc_enum_dv_timings = vpbe_display_enum_dv_timings, |
|
}; |
|
|
|
static const struct v4l2_file_operations vpbe_fops = { |
|
.owner = THIS_MODULE, |
|
.open = vpbe_display_open, |
|
.release = vpbe_display_release, |
|
.unlocked_ioctl = video_ioctl2, |
|
.mmap = vb2_fop_mmap, |
|
.poll = vb2_fop_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 (strstr(pdev->name, "vpbe-osd")) |
|
vpbe_disp->osd_device = platform_get_drvdata(pdev); |
|
|
|
return 0; |
|
} |
|
|
|
static 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(*disp_dev->dev[i]), GFP_KERNEL); |
|
if (!disp_dev->dev[i]) |
|
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; |
|
vbd->vfl_dir = VFL_DIR_TX; |
|
vbd->device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING; |
|
|
|
if (disp_dev->vpbe_dev->current_timings.timings_type & |
|
VPBE_ENC_STD) |
|
vbd->tvnorms = (V4L2_STD_525_60 | V4L2_STD_625_50); |
|
|
|
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); |
|
|
|
|
|
return 0; |
|
} |
|
|
|
static 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=%p,layer->video_dev=%p\n", |
|
vpbe_display_layer, |
|
&vpbe_display_layer->video_dev); |
|
|
|
vpbe_display_layer->video_dev.queue = &vpbe_display_layer->buffer_queue; |
|
err = video_register_device(&vpbe_display_layer->video_dev, |
|
VFL_TYPE_VIDEO, |
|
-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 int vpbe_display_probe(struct platform_device *pdev) |
|
{ |
|
struct vpbe_display *disp_dev; |
|
struct v4l2_device *v4l2_dev; |
|
struct resource *res = NULL; |
|
struct vb2_queue *q; |
|
int k; |
|
int i; |
|
int err; |
|
int irq; |
|
|
|
printk(KERN_DEBUG "vpbe_display_probe\n"); |
|
/* Allocate memory for vpbe_display */ |
|
disp_dev = devm_kzalloc(&pdev->dev, sizeof(*disp_dev), GFP_KERNEL); |
|
if (!disp_dev) |
|
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; |
|
|
|
v4l2_dev = &disp_dev->vpbe_dev->v4l2_dev; |
|
/* Initialize the vpbe display controller */ |
|
if (disp_dev->vpbe_dev->ops.initialize) { |
|
err = disp_dev->vpbe_dev->ops.initialize(&pdev->dev, |
|
disp_dev->vpbe_dev); |
|
if (err) { |
|
v4l2_err(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(v4l2_dev, "Unable to get VENC interrupt resource\n"); |
|
err = -ENODEV; |
|
goto probe_out; |
|
} |
|
|
|
irq = res->start; |
|
err = devm_request_irq(&pdev->dev, irq, venc_isr, 0, |
|
VPBE_DISPLAY_DRIVER, disp_dev); |
|
if (err) { |
|
v4l2_err(v4l2_dev, "VPBE IRQ request failed\n"); |
|
goto probe_out; |
|
} |
|
|
|
for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) { |
|
/* initialize vb2 queue */ |
|
q = &disp_dev->dev[i]->buffer_queue; |
|
memset(q, 0, sizeof(*q)); |
|
q->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; |
|
q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; |
|
q->drv_priv = disp_dev->dev[i]; |
|
q->ops = &video_qops; |
|
q->mem_ops = &vb2_dma_contig_memops; |
|
q->buf_struct_size = sizeof(struct vpbe_disp_buffer); |
|
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
|
q->min_buffers_needed = 1; |
|
q->lock = &disp_dev->dev[i]->opslock; |
|
q->dev = disp_dev->vpbe_dev->pdev; |
|
err = vb2_queue_init(q); |
|
if (err) { |
|
v4l2_err(v4l2_dev, "vb2_queue_init() failed\n"); |
|
goto probe_out; |
|
} |
|
|
|
INIT_LIST_HEAD(&disp_dev->dev[i]->dma_queue); |
|
|
|
if (register_device(disp_dev->dev[i], disp_dev, pdev)) { |
|
err = -ENODEV; |
|
goto probe_out; |
|
} |
|
} |
|
|
|
v4l2_dbg(1, debug, v4l2_dev, |
|
"Successfully completed the probing of vpbe v4l2 device\n"); |
|
|
|
return 0; |
|
|
|
probe_out: |
|
for (k = 0; k < VPBE_DISPLAY_MAX_DEVICES; k++) { |
|
/* Unregister video device */ |
|
if (disp_dev->dev[k]) { |
|
video_unregister_device(&disp_dev->dev[k]->video_dev); |
|
kfree(disp_dev->dev[k]); |
|
} |
|
} |
|
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; |
|
int i; |
|
|
|
v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_display_remove\n"); |
|
|
|
/* deinitialize the vpbe display controller */ |
|
if (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, |
|
.bus = &platform_bus_type, |
|
}, |
|
.probe = vpbe_display_probe, |
|
.remove = 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");
|
|
|