From 2401dd25c70c07dcec8d7b5497cec4a7e74d2e31 Mon Sep 17 00:00:00 2001 From: "Lad, Prabhakar" Date: Thu, 28 Jun 2012 09:28:36 -0300 Subject: [media] davinci: vpif display: migrate driver to videobuf2 This patch migrates VPIF display driver to videobuf2 framework. Signed-off-by: Lad, Prabhakar Signed-off-by: Manjunath Hadli Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/davinci/Kconfig b/drivers/media/video/davinci/Kconfig index c45739d..a27e1f5 100644 --- a/drivers/media/video/davinci/Kconfig +++ b/drivers/media/video/davinci/Kconfig @@ -1,7 +1,7 @@ config DISPLAY_DAVINCI_DM646X_EVM tristate "DM646x EVM Video Display" depends on VIDEO_DEV && MACH_DAVINCI_DM6467_EVM - select VIDEOBUF_DMA_CONTIG + select VIDEOBUF2_DMA_CONTIG select VIDEO_DAVINCI_VPIF select VIDEO_ADV7343 select VIDEO_THS7303 diff --git a/drivers/media/video/davinci/vpif_display.c b/drivers/media/video/davinci/vpif_display.c index e0070cd..7872459 100644 --- a/drivers/media/video/davinci/vpif_display.c +++ b/drivers/media/video/davinci/vpif_display.c @@ -82,89 +82,38 @@ static struct vpif_config_params config_params = { static struct vpif_device vpif_obj = { {NULL} }; static struct device *vpif_dev; +static void vpif_calculate_offsets(struct channel_obj *ch); +static void vpif_config_addr(struct channel_obj *ch, int muxmode); /* - * vpif_uservirt_to_phys: This function is used to convert user - * space virtual address to physical address. - */ -static u32 vpif_uservirt_to_phys(u32 virtp) -{ - struct mm_struct *mm = current->mm; - unsigned long physp = 0; - struct vm_area_struct *vma; - - vma = find_vma(mm, virtp); - - /* For kernel direct-mapped memory, take the easy way */ - if (virtp >= PAGE_OFFSET) { - physp = virt_to_phys((void *)virtp); - } else if (vma && (vma->vm_flags & VM_IO) && (vma->vm_pgoff)) { - /* this will catch, kernel-allocated, mmaped-to-usermode addr */ - physp = (vma->vm_pgoff << PAGE_SHIFT) + (virtp - vma->vm_start); - } else { - /* otherwise, use get_user_pages() for general userland pages */ - int res, nr_pages = 1; - struct page *pages; - down_read(¤t->mm->mmap_sem); - - res = get_user_pages(current, current->mm, - virtp, nr_pages, 1, 0, &pages, NULL); - up_read(¤t->mm->mmap_sem); - - if (res == nr_pages) { - physp = __pa(page_address(&pages[0]) + - (virtp & ~PAGE_MASK)); - } else { - vpif_err("get_user_pages failed\n"); - return 0; - } - } - - return physp; -} - -/* - * buffer_prepare: This is the callback function called from videobuf_qbuf() + * buffer_prepare: This is the callback function called from vb2_qbuf() * function the buffer is prepared and user space virtual address is converted * into physical address */ -static int vpif_buffer_prepare(struct videobuf_queue *q, - struct videobuf_buffer *vb, - enum v4l2_field field) +static int vpif_buffer_prepare(struct vb2_buffer *vb) { - struct vpif_fh *fh = q->priv_data; + struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue); + struct vb2_queue *q = vb->vb2_queue; struct common_obj *common; unsigned long addr; common = &fh->channel->common[VPIF_VIDEO_INDEX]; - if (VIDEOBUF_NEEDS_INIT == vb->state) { - vb->width = common->width; - vb->height = common->height; - vb->size = vb->width * vb->height; - vb->field = field; - } - vb->state = VIDEOBUF_PREPARED; - - /* if user pointer memory mechanism is used, get the physical - * address of the buffer */ - if (V4L2_MEMORY_USERPTR == common->memory) { - if (!vb->baddr) { - vpif_err("buffer_address is 0\n"); - return -EINVAL; - } - - vb->boff = vpif_uservirt_to_phys(vb->baddr); - if (!ISALIGNED(vb->boff)) + if (vb->state != VB2_BUF_STATE_ACTIVE && + vb->state != VB2_BUF_STATE_PREPARED) { + vb2_set_plane_payload(vb, 0, common->fmt.fmt.pix.sizeimage); + if (vb2_plane_vaddr(vb, 0) && + vb2_get_plane_payload(vb, 0) > vb2_plane_size(vb, 0)) goto buf_align_exit; - } - addr = vb->boff; - if (q->streaming && (V4L2_BUF_TYPE_SLICED_VBI_OUTPUT != q->type)) { - if (!ISALIGNED(addr + common->ytop_off) || - !ISALIGNED(addr + common->ybtm_off) || - !ISALIGNED(addr + common->ctop_off) || - !ISALIGNED(addr + common->cbtm_off)) - goto buf_align_exit; + addr = vb2_dma_contig_plane_dma_addr(vb, 0); + if (q->streaming && + (V4L2_BUF_TYPE_SLICED_VBI_OUTPUT != q->type)) { + if (!ISALIGNED(addr + common->ytop_off) || + !ISALIGNED(addr + common->ybtm_off) || + !ISALIGNED(addr + common->ctop_off) || + !ISALIGNED(addr + common->cbtm_off)) + goto buf_align_exit; + } } return 0; @@ -174,104 +123,251 @@ buf_align_exit: } /* - * vpif_buffer_setup: This function allocates memory for the buffers + * vpif_buffer_queue_setup: This function allocates memory for the buffers */ -static int vpif_buffer_setup(struct videobuf_queue *q, unsigned int *count, - unsigned int *size) +static int vpif_buffer_queue_setup(struct vb2_queue *vq, + const struct v4l2_format *fmt, + unsigned int *nbuffers, unsigned int *nplanes, + unsigned int sizes[], void *alloc_ctxs[]) { - struct vpif_fh *fh = q->priv_data; + struct vpif_fh *fh = vb2_get_drv_priv(vq); struct channel_obj *ch = fh->channel; struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; - - if (V4L2_MEMORY_MMAP != common->memory) - return 0; - - *size = config_params.channel_bufsize[ch->channel_id]; - - /* - * Checking if the buffer size exceeds the available buffer - * ycmux_mode = 0 means 1 channel mode HD and - * ycmux_mode = 1 means 2 channels mode SD - */ - if (ch->vpifparams.std_info.ycmux_mode == 0) { - if (config_params.video_limit[ch->channel_id]) - while (*size * *count > (config_params.video_limit[0] - + config_params.video_limit[1])) - (*count)--; - } else { - if (config_params.video_limit[ch->channel_id]) - while (*size * *count > + unsigned long size; + + if (V4L2_MEMORY_MMAP == common->memory) { + size = config_params.channel_bufsize[ch->channel_id]; + /* + * Checking if the buffer size exceeds the available buffer + * ycmux_mode = 0 means 1 channel mode HD and + * ycmux_mode = 1 means 2 channels mode SD + */ + if (ch->vpifparams.std_info.ycmux_mode == 0) { + if (config_params.video_limit[ch->channel_id]) + while (size * *nbuffers > + (config_params.video_limit[0] + + config_params.video_limit[1])) + (*nbuffers)--; + } else { + if (config_params.video_limit[ch->channel_id]) + while (size * *nbuffers > config_params.video_limit[ch->channel_id]) - (*count)--; + (*nbuffers)--; + } + } else { + size = common->fmt.fmt.pix.sizeimage; } - if (*count < config_params.min_numbuffers) - *count = config_params.min_numbuffers; + if (*nbuffers < config_params.min_numbuffers) + *nbuffers = config_params.min_numbuffers; + *nplanes = 1; + sizes[0] = size; + alloc_ctxs[0] = common->alloc_ctx; return 0; } /* * vpif_buffer_queue: This function adds the buffer to DMA queue */ -static void vpif_buffer_queue(struct videobuf_queue *q, - struct videobuf_buffer *vb) +static void vpif_buffer_queue(struct vb2_buffer *vb) { - struct vpif_fh *fh = q->priv_data; + struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue); + struct vpif_disp_buffer *buf = container_of(vb, + struct vpif_disp_buffer, vb); + struct channel_obj *ch = fh->channel; struct common_obj *common; - common = &fh->channel->common[VPIF_VIDEO_INDEX]; + common = &ch->common[VPIF_VIDEO_INDEX]; /* add the buffer to the DMA queue */ - list_add_tail(&vb->queue, &common->dma_queue); - vb->state = VIDEOBUF_QUEUED; + list_add_tail(&buf->list, &common->dma_queue); } /* - * vpif_buffer_release: This function is called from the videobuf layer to + * vpif_buf_cleanup: This function is called from the videobuf2 layer to * free memory allocated to the buffers */ -static void vpif_buffer_release(struct videobuf_queue *q, - struct videobuf_buffer *vb) +static void vpif_buf_cleanup(struct vb2_buffer *vb) { - struct vpif_fh *fh = q->priv_data; + struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue); + struct vpif_disp_buffer *buf = container_of(vb, + struct vpif_disp_buffer, vb); struct channel_obj *ch = fh->channel; struct common_obj *common; - unsigned int buf_size = 0; + unsigned long flags; common = &ch->common[VPIF_VIDEO_INDEX]; - videobuf_dma_contig_free(q, vb); - vb->state = VIDEOBUF_NEEDS_INIT; + spin_lock_irqsave(&common->irqlock, flags); + if (vb->state == VB2_BUF_STATE_ACTIVE) + list_del_init(&buf->list); + spin_unlock_irqrestore(&common->irqlock, flags); +} + +static void vpif_wait_prepare(struct vb2_queue *vq) +{ + struct vpif_fh *fh = vb2_get_drv_priv(vq); + struct channel_obj *ch = fh->channel; + struct common_obj *common; + + common = &ch->common[VPIF_VIDEO_INDEX]; + mutex_unlock(&common->lock); +} - if (V4L2_MEMORY_MMAP != common->memory) - return; +static void vpif_wait_finish(struct vb2_queue *vq) +{ + struct vpif_fh *fh = vb2_get_drv_priv(vq); + struct channel_obj *ch = fh->channel; + struct common_obj *common; - buf_size = config_params.channel_bufsize[ch->channel_id]; + common = &ch->common[VPIF_VIDEO_INDEX]; + mutex_lock(&common->lock); +} + +static int vpif_buffer_init(struct vb2_buffer *vb) +{ + struct vpif_disp_buffer *buf = container_of(vb, + struct vpif_disp_buffer, vb); + + INIT_LIST_HEAD(&buf->list); + + return 0; } -static struct videobuf_queue_ops video_qops = { - .buf_setup = vpif_buffer_setup, - .buf_prepare = vpif_buffer_prepare, - .buf_queue = vpif_buffer_queue, - .buf_release = vpif_buffer_release, -}; static u8 channel_first_int[VPIF_NUMOBJECTS][2] = { {1, 1} }; +static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count) +{ + struct vpif_display_config *vpif_config_data = + vpif_dev->platform_data; + struct vpif_fh *fh = vb2_get_drv_priv(vq); + struct channel_obj *ch = fh->channel; + struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; + struct vpif_params *vpif = &ch->vpifparams; + unsigned long addr = 0; + int ret; + + /* If buffer queue is empty, return error */ + if (list_empty(&common->dma_queue)) { + vpif_err("buffer queue is empty\n"); + return -EIO; + } + + /* Get the next frame from the buffer queue */ + common->next_frm = common->cur_frm = + list_entry(common->dma_queue.next, + struct vpif_disp_buffer, list); + + list_del(&common->cur_frm->list); + /* Mark state of the current frame to active */ + common->cur_frm->vb.state = VB2_BUF_STATE_ACTIVE; + + /* Initialize field_id and started member */ + ch->field_id = 0; + common->started = 1; + addr = vb2_dma_contig_plane_dma_addr(&common->cur_frm->vb, 0); + /* Calculate the offset for Y and C data in the buffer */ + vpif_calculate_offsets(ch); + + if ((ch->vpifparams.std_info.frm_fmt && + ((common->fmt.fmt.pix.field != V4L2_FIELD_NONE) + && (common->fmt.fmt.pix.field != V4L2_FIELD_ANY))) + || (!ch->vpifparams.std_info.frm_fmt + && (common->fmt.fmt.pix.field == V4L2_FIELD_NONE))) { + vpif_err("conflict in field format and std format\n"); + return -EINVAL; + } + + /* clock settings */ + ret = + vpif_config_data->set_clock(ch->vpifparams.std_info.ycmux_mode, + ch->vpifparams.std_info.hd_sd); + if (ret < 0) { + vpif_err("can't set clock\n"); + return ret; + } + + /* set the parameters and addresses */ + ret = vpif_set_video_params(vpif, ch->channel_id + 2); + if (ret < 0) + return ret; + + common->started = ret; + vpif_config_addr(ch, ret); + common->set_addr((addr + common->ytop_off), + (addr + common->ybtm_off), + (addr + common->ctop_off), + (addr + common->cbtm_off)); + + /* Set interrupt for both the fields in VPIF + Register enable channel in VPIF register */ + if (VPIF_CHANNEL2_VIDEO == ch->channel_id) { + channel2_intr_assert(); + channel2_intr_enable(1); + enable_channel2(1); + } + + if ((VPIF_CHANNEL3_VIDEO == ch->channel_id) + || (common->started == 2)) { + channel3_intr_assert(); + channel3_intr_enable(1); + enable_channel3(1); + } + channel_first_int[VPIF_VIDEO_INDEX][ch->channel_id] = 1; + + return 0; +} + +/* abort streaming and wait for last buffer */ +static int vpif_stop_streaming(struct vb2_queue *vq) +{ + struct vpif_fh *fh = vb2_get_drv_priv(vq); + struct channel_obj *ch = fh->channel; + struct common_obj *common; + + if (!vb2_is_streaming(vq)) + return 0; + + common = &ch->common[VPIF_VIDEO_INDEX]; + + /* release all active buffers */ + while (!list_empty(&common->dma_queue)) { + common->next_frm = list_entry(common->dma_queue.next, + struct vpif_disp_buffer, list); + list_del(&common->next_frm->list); + vb2_buffer_done(&common->next_frm->vb, VB2_BUF_STATE_ERROR); + } + + return 0; +} + +static struct vb2_ops video_qops = { + .queue_setup = vpif_buffer_queue_setup, + .wait_prepare = vpif_wait_prepare, + .wait_finish = vpif_wait_finish, + .buf_init = vpif_buffer_init, + .buf_prepare = vpif_buffer_prepare, + .start_streaming = vpif_start_streaming, + .stop_streaming = vpif_stop_streaming, + .buf_cleanup = vpif_buf_cleanup, + .buf_queue = vpif_buffer_queue, +}; + static void process_progressive_mode(struct common_obj *common) { unsigned long addr = 0; /* Get the next buffer from buffer queue */ common->next_frm = list_entry(common->dma_queue.next, - struct videobuf_buffer, queue); + struct vpif_disp_buffer, list); /* Remove that buffer from the buffer queue */ - list_del(&common->next_frm->queue); + list_del(&common->next_frm->list); /* Mark status of the buffer as active */ - common->next_frm->state = VIDEOBUF_ACTIVE; + common->next_frm->vb.state = VB2_BUF_STATE_ACTIVE; /* Set top and bottom field addrs in VPIF registers */ - addr = videobuf_to_dma_contig(common->next_frm); + addr = vb2_dma_contig_plane_dma_addr(&common->next_frm->vb, 0); common->set_addr(addr + common->ytop_off, addr + common->ybtm_off, addr + common->ctop_off, @@ -289,11 +385,10 @@ static void process_interlaced_mode(int fid, struct common_obj *common) /* one frame is displayed If next frame is * available, release cur_frm and move on */ /* Copy frame display time */ - do_gettimeofday(&common->cur_frm->ts); + do_gettimeofday(&common->cur_frm->vb.v4l2_buf.timestamp); /* Change status of the cur_frm */ - common->cur_frm->state = VIDEOBUF_DONE; - /* unlock semaphore on cur_frm */ - wake_up_interruptible(&common->cur_frm->done); + vb2_buffer_done(&common->cur_frm->vb, + VB2_BUF_STATE_DONE); /* Make cur_frm pointing to next_frm */ common->cur_frm = common->next_frm; @@ -344,9 +439,10 @@ static irqreturn_t vpif_channel_isr(int irq, void *dev_id) if (!channel_first_int[i][channel_id]) { /* Mark status of the cur_frm to * done and unlock semaphore on it */ - do_gettimeofday(&common->cur_frm->ts); - common->cur_frm->state = VIDEOBUF_DONE; - wake_up_interruptible(&common->cur_frm->done); + do_gettimeofday(&common->cur_frm->vb. + v4l2_buf.timestamp); + vb2_buffer_done(&common->cur_frm->vb, + VB2_BUF_STATE_DONE); /* Make cur_frm pointing to next_frm */ common->cur_frm = common->next_frm; } @@ -464,10 +560,7 @@ static void vpif_calculate_offsets(struct channel_obj *ch) vid_ch->buf_field = common->fmt.fmt.pix.field; } - if (V4L2_MEMORY_USERPTR == common->memory) - sizeimage = common->fmt.fmt.pix.sizeimage; - else - sizeimage = config_params.channel_bufsize[ch->channel_id]; + sizeimage = common->fmt.fmt.pix.sizeimage; hpitch = common->fmt.fmt.pix.bytesperline; vpitch = sizeimage / (hpitch * 2); @@ -544,10 +637,7 @@ static int vpif_check_format(struct channel_obj *ch, if (pixfmt->bytesperline <= 0) goto invalid_pitch_exit; - if (V4L2_MEMORY_USERPTR == common->memory) - sizeimage = pixfmt->sizeimage; - else - sizeimage = config_params.channel_bufsize[ch->channel_id]; + sizeimage = pixfmt->sizeimage; if (vpif_update_resolution(ch)) return -EINVAL; @@ -604,7 +694,7 @@ static int vpif_mmap(struct file *filep, struct vm_area_struct *vma) vpif_dbg(2, debug, "vpif_mmap\n"); - return videobuf_mmap_mapper(&common->buffer_queue, vma); + return vb2_mmap(&common->buffer_queue, vma); } /* @@ -617,7 +707,7 @@ static unsigned int vpif_poll(struct file *filep, poll_table *wait) struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; if (common->started) - return videobuf_poll_stream(filep, &common->buffer_queue, wait); + return vb2_poll(&common->buffer_queue, filep, wait); return 0; } @@ -686,9 +776,11 @@ static int vpif_release(struct file *filep) channel3_intr_enable(0); } common->started = 0; + /* Free buffers allocated */ - videobuf_queue_cancel(&common->buffer_queue); - videobuf_mmap_free(&common->buffer_queue); + vb2_queue_release(&common->buffer_queue); + vb2_dma_contig_cleanup_ctx(common->alloc_ctx); + common->numbuffers = config_params.numbuffers[ch->channel_id]; } @@ -827,6 +919,7 @@ static int vpif_reqbufs(struct file *file, void *priv, struct channel_obj *ch = fh->channel; struct common_obj *common; enum v4l2_field field; + struct vb2_queue *q; u8 index = 0; /* This file handle has not initialized the channel, @@ -848,7 +941,6 @@ static int vpif_reqbufs(struct file *file, void *priv, if (common->fmt.type != reqbuf->type || !vpif_dev) return -EINVAL; - if (0 != common->io_usrs) return -EBUSY; @@ -860,14 +952,21 @@ static int vpif_reqbufs(struct file *file, void *priv, } else { field = V4L2_VBI_INTERLACED; } + /* Initialize videobuf2 queue as per the buffer type */ + common->alloc_ctx = vb2_dma_contig_init_ctx(vpif_dev); + if (!common->alloc_ctx) { + vpif_err("Failed to get the context\n"); + return -EINVAL; + } + q = &common->buffer_queue; + q->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; + q->io_modes = VB2_MMAP | VB2_USERPTR; + q->drv_priv = fh; + q->ops = &video_qops; + q->mem_ops = &vb2_dma_contig_memops; + q->buf_struct_size = sizeof(struct vpif_disp_buffer); - /* Initialize videobuf queue as per the buffer type */ - videobuf_queue_dma_contig_init(&common->buffer_queue, - &video_qops, vpif_dev, - &common->irqlock, - reqbuf->type, field, - sizeof(struct videobuf_buffer), fh, - &common->lock); + vb2_queue_init(q); /* Set io allowed member of file handle to TRUE */ fh->io_allowed[index] = 1; @@ -876,9 +975,8 @@ static int vpif_reqbufs(struct file *file, void *priv, /* Store type of memory requested in channel object */ common->memory = reqbuf->memory; INIT_LIST_HEAD(&common->dma_queue); - /* Allocate buffers */ - return videobuf_reqbufs(&common->buffer_queue, reqbuf); + return vb2_reqbufs(&common->buffer_queue, reqbuf); } static int vpif_querybuf(struct file *file, void *priv, @@ -891,22 +989,25 @@ static int vpif_querybuf(struct file *file, void *priv, if (common->fmt.type != tbuf->type) return -EINVAL; - return videobuf_querybuf(&common->buffer_queue, tbuf); + return vb2_querybuf(&common->buffer_queue, tbuf); } static int vpif_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf) { + struct vpif_fh *fh = NULL; + struct channel_obj *ch = NULL; + struct common_obj *common = NULL; - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; - struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; - struct v4l2_buffer tbuf = *buf; - struct videobuf_buffer *buf1; - unsigned long addr = 0; - unsigned long flags; - int ret = 0; + if (!buf || !priv) + return -EINVAL; - if (common->fmt.type != tbuf.type) + fh = priv; + ch = fh->channel; + if (!ch) + return -EINVAL; + + common = &(ch->common[VPIF_VIDEO_INDEX]); + if (common->fmt.type != buf->type) return -EINVAL; if (!fh->io_allowed[VPIF_VIDEO_INDEX]) { @@ -914,73 +1015,7 @@ static int vpif_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf) return -EACCES; } - if (!(list_empty(&common->dma_queue)) || - (common->cur_frm != common->next_frm) || - !(common->started) || - (common->started && (0 == ch->field_id))) - return videobuf_qbuf(&common->buffer_queue, buf); - - /* bufferqueue is empty store buffer address in VPIF registers */ - mutex_lock(&common->buffer_queue.vb_lock); - buf1 = common->buffer_queue.bufs[tbuf.index]; - if (buf1->memory != tbuf.memory) { - vpif_err("invalid buffer type\n"); - goto qbuf_exit; - } - - if ((buf1->state == VIDEOBUF_QUEUED) || - (buf1->state == VIDEOBUF_ACTIVE)) { - vpif_err("invalid state\n"); - goto qbuf_exit; - } - - switch (buf1->memory) { - case V4L2_MEMORY_MMAP: - if (buf1->baddr == 0) - goto qbuf_exit; - break; - - case V4L2_MEMORY_USERPTR: - if (tbuf.length < buf1->bsize) - goto qbuf_exit; - - if ((VIDEOBUF_NEEDS_INIT != buf1->state) - && (buf1->baddr != tbuf.m.userptr)) { - vpif_buffer_release(&common->buffer_queue, buf1); - buf1->baddr = tbuf.m.userptr; - } - break; - - default: - goto qbuf_exit; - } - - local_irq_save(flags); - ret = vpif_buffer_prepare(&common->buffer_queue, buf1, - common->buffer_queue.field); - if (ret < 0) { - local_irq_restore(flags); - goto qbuf_exit; - } - - buf1->state = VIDEOBUF_ACTIVE; - addr = buf1->boff; - common->next_frm = buf1; - if (tbuf.type != V4L2_BUF_TYPE_SLICED_VBI_OUTPUT) { - common->set_addr((addr + common->ytop_off), - (addr + common->ybtm_off), - (addr + common->ctop_off), - (addr + common->cbtm_off)); - } - - local_irq_restore(flags); - list_add_tail(&buf1->stream, &common->buffer_queue.stream); - mutex_unlock(&common->buffer_queue.vb_lock); - return 0; - -qbuf_exit: - mutex_unlock(&common->buffer_queue.vb_lock); - return -EINVAL; + return vb2_qbuf(&common->buffer_queue, buf); } static int vpif_s_std(struct file *file, void *priv, v4l2_std_id *std_id) @@ -1047,7 +1082,7 @@ static int vpif_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p) struct channel_obj *ch = fh->channel; struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; - return videobuf_dqbuf(&common->buffer_queue, p, + return vb2_dqbuf(&common->buffer_queue, p, (file->f_flags & O_NONBLOCK)); } @@ -1058,10 +1093,6 @@ static int vpif_streamon(struct file *file, void *priv, struct channel_obj *ch = fh->channel; struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; struct channel_obj *oth_ch = vpif_obj.dev[!ch->channel_id]; - struct vpif_params *vpif = &ch->vpifparams; - struct vpif_display_config *vpif_config_data = - vpif_dev->platform_data; - unsigned long addr = 0; int ret = 0; if (buftype != V4L2_BUF_TYPE_VIDEO_OUTPUT) { @@ -1093,82 +1124,13 @@ static int vpif_streamon(struct file *file, void *priv, if (ret < 0) return ret; - /* Call videobuf_streamon to start streaming in videobuf */ - ret = videobuf_streamon(&common->buffer_queue); + /* Call vb2_streamon to start streaming in videobuf2 */ + ret = vb2_streamon(&common->buffer_queue, buftype); if (ret < 0) { - vpif_err("videobuf_streamon\n"); + vpif_err("vb2_streamon\n"); return ret; } - /* If buffer queue is empty, return error */ - if (list_empty(&common->dma_queue)) { - vpif_err("buffer queue is empty\n"); - return -EIO; - } - - /* Get the next frame from the buffer queue */ - common->next_frm = common->cur_frm = - list_entry(common->dma_queue.next, - struct videobuf_buffer, queue); - - list_del(&common->cur_frm->queue); - /* Mark state of the current frame to active */ - common->cur_frm->state = VIDEOBUF_ACTIVE; - - /* Initialize field_id and started member */ - ch->field_id = 0; - common->started = 1; - if (buftype == V4L2_BUF_TYPE_VIDEO_OUTPUT) { - addr = common->cur_frm->boff; - /* Calculate the offset for Y and C data in the buffer */ - vpif_calculate_offsets(ch); - - if ((ch->vpifparams.std_info.frm_fmt && - ((common->fmt.fmt.pix.field != V4L2_FIELD_NONE) - && (common->fmt.fmt.pix.field != V4L2_FIELD_ANY))) - || (!ch->vpifparams.std_info.frm_fmt - && (common->fmt.fmt.pix.field == V4L2_FIELD_NONE))) { - vpif_err("conflict in field format and std format\n"); - return -EINVAL; - } - - /* clock settings */ - ret = - vpif_config_data->set_clock(ch->vpifparams.std_info.ycmux_mode, - ch->vpifparams.std_info.hd_sd); - if (ret < 0) { - vpif_err("can't set clock\n"); - return ret; - } - - /* set the parameters and addresses */ - ret = vpif_set_video_params(vpif, ch->channel_id + 2); - if (ret < 0) - return ret; - - common->started = ret; - vpif_config_addr(ch, ret); - common->set_addr((addr + common->ytop_off), - (addr + common->ybtm_off), - (addr + common->ctop_off), - (addr + common->cbtm_off)); - - /* Set interrupt for both the fields in VPIF - Register enable channel in VPIF register */ - if (VPIF_CHANNEL2_VIDEO == ch->channel_id) { - channel2_intr_assert(); - channel2_intr_enable(1); - enable_channel2(1); - } - - if ((VPIF_CHANNEL3_VIDEO == ch->channel_id) - || (common->started == 2)) { - channel3_intr_assert(); - channel3_intr_enable(1); - enable_channel3(1); - } - channel_first_int[VPIF_VIDEO_INDEX][ch->channel_id] = 1; - } return ret; } @@ -1208,7 +1170,7 @@ static int vpif_streamoff(struct file *file, void *priv, } common->started = 0; - return videobuf_streamoff(&common->buffer_queue); + return vb2_streamoff(&common->buffer_queue, buftype); } static int vpif_cropcap(struct file *file, void *priv, diff --git a/drivers/media/video/davinci/vpif_display.h b/drivers/media/video/davinci/vpif_display.h index 8a311f1..8967ffb 100644 --- a/drivers/media/video/davinci/vpif_display.h +++ b/drivers/media/video/davinci/vpif_display.h @@ -21,7 +21,7 @@ #include #include #include -#include +#include #include #include "vpif.h" @@ -73,21 +73,29 @@ struct vbi_obj { * vbi data */ }; +struct vpif_disp_buffer { + struct vb2_buffer vb; + struct list_head list; +}; + struct common_obj { /* Buffer specific parameters */ u8 *fbuffers[VIDEO_MAX_FRAME]; /* List of buffer pointers for * storing frames */ u32 numbuffers; /* number of buffers */ - struct videobuf_buffer *cur_frm; /* Pointer pointing to current - * videobuf_buffer */ - struct videobuf_buffer *next_frm; /* Pointer pointing to next - * videobuf_buffer */ + struct vpif_disp_buffer *cur_frm; /* Pointer pointing to current + * vb2_buffer */ + struct vpif_disp_buffer *next_frm; /* Pointer pointing to next + * vb2_buffer */ enum v4l2_memory memory; /* This field keeps track of * type of buffer exchange * method user has selected */ struct v4l2_format fmt; /* Used to store the format */ - struct videobuf_queue buffer_queue; /* Buffer queue used in + struct vb2_queue buffer_queue; /* Buffer queue used in * video-buf */ + /* allocator-specific contexts for each plane */ + struct vb2_alloc_ctx *alloc_ctx; + struct list_head dma_queue; /* Queue of filled frames */ spinlock_t irqlock; /* Used in video-buf */ -- cgit v0.10.2