diff options
Diffstat (limited to 'drivers/media/platform/davinci/vpif_capture.c')
| -rw-r--r-- | drivers/media/platform/davinci/vpif_capture.c | 1467 |
1 files changed, 448 insertions, 1019 deletions
diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c index a409ccefb38..1e4ec697fb1 100644 --- a/drivers/media/platform/davinci/vpif_capture.c +++ b/drivers/media/platform/davinci/vpif_capture.c @@ -1,5 +1,6 @@ /* * Copyright (C) 2009 Texas Instruments Inc + * Copyright (C) 2014 Lad, Prabhakar <prabhakar.csengg@gmail.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -18,28 +19,16 @@ * TODO : add support for VBI & HBI data service * add static buffer allocation */ -#include <linux/kernel.h> -#include <linux/init.h> + #include <linux/module.h> -#include <linux/errno.h> -#include <linux/fs.h> -#include <linux/mm.h> #include <linux/interrupt.h> -#include <linux/workqueue.h> -#include <linux/string.h> -#include <linux/videodev2.h> -#include <linux/wait.h> -#include <linux/time.h> -#include <linux/i2c.h> #include <linux/platform_device.h> -#include <linux/io.h> #include <linux/slab.h> -#include <media/v4l2-device.h> + #include <media/v4l2-ioctl.h> -#include <media/v4l2-chip-ident.h> -#include "vpif_capture.h" #include "vpif.h" +#include "vpif_capture.h" MODULE_DESCRIPTION("TI DaVinci VPIF Capture driver"); MODULE_LICENSE("GPL"); @@ -77,14 +66,26 @@ static struct vpif_config_params config_params = { .channel_bufsize[1] = 720 * 576 * 2, }; +#define VPIF_DRIVER_NAME "vpif_capture" + /* global variables */ 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); +static u8 channel_first_int[VPIF_NUMBER_OF_OBJECTS][2] = { {1, 1} }; + +/* Is set to 1 in case of SDTV formats, 2 in case of HDTV formats. */ +static int ycmux_mode; + +static inline struct vpif_cap_buffer *to_vpif_buffer(struct vb2_buffer *vb) +{ + return container_of(vb, struct vpif_cap_buffer, vb); +} + /** - * buffer_prepare : callback function for buffer prepare + * vpif_buffer_prepare : callback function for buffer prepare * @vb: ptr to vb2_buffer * * This is the callback function for buffer prepare when vb2_qbuf() @@ -93,10 +94,8 @@ static void vpif_config_addr(struct channel_obj *ch, int muxmode); */ static int vpif_buffer_prepare(struct vb2_buffer *vb) { - /* Get the file handle object and channel object */ - struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue); struct vb2_queue *q = vb->vb2_queue; - struct channel_obj *ch = fh->channel; + struct channel_obj *ch = vb2_get_drv_priv(q); struct common_obj *common; unsigned long addr; @@ -104,26 +103,22 @@ static int vpif_buffer_prepare(struct vb2_buffer *vb) common = &ch->common[VPIF_VIDEO_INDEX]; - 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 exit; - addr = vb2_dma_contig_plane_dma_addr(vb, 0); + vb2_set_plane_payload(vb, 0, common->fmt.fmt.pix.sizeimage); + if (vb2_get_plane_payload(vb, 0) > vb2_plane_size(vb, 0)) + return -EINVAL; - if (q->streaming) { - if (!IS_ALIGNED((addr + common->ytop_off), 8) || - !IS_ALIGNED((addr + common->ybtm_off), 8) || - !IS_ALIGNED((addr + common->ctop_off), 8) || - !IS_ALIGNED((addr + common->cbtm_off), 8)) - goto exit; - } + vb->v4l2_buf.field = common->fmt.fmt.pix.field; + + addr = vb2_dma_contig_plane_dma_addr(vb, 0); + if (!IS_ALIGNED((addr + common->ytop_off), 8) || + !IS_ALIGNED((addr + common->ybtm_off), 8) || + !IS_ALIGNED((addr + common->ctop_off), 8) || + !IS_ALIGNED((addr + common->cbtm_off), 8)) { + vpif_dbg(1, debug, "offset is not aligned\n"); + return -EINVAL; } + return 0; -exit: - vpif_dbg(1, debug, "buffer_prepare:offset is not aligned to 8 bytes\n"); - return -EINVAL; } /** @@ -143,49 +138,26 @@ static int vpif_buffer_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, unsigned int *nplanes, unsigned int sizes[], void *alloc_ctxs[]) { - /* Get the file handle object and channel object */ - struct vpif_fh *fh = vb2_get_drv_priv(vq); - struct channel_obj *ch = fh->channel; + struct channel_obj *ch = vb2_get_drv_priv(vq); struct common_obj *common; - unsigned long size; common = &ch->common[VPIF_VIDEO_INDEX]; vpif_dbg(2, debug, "vpif_buffer_setup\n"); - /* If memory type is not mmap, return */ - if (V4L2_MEMORY_MMAP == common->memory) { - /* Calculate the size of the buffer */ - 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]) - (*nbuffers)--; - } - - } else { - size = common->fmt.fmt.pix.sizeimage; - } + if (fmt && fmt->fmt.pix.sizeimage < common->fmt.fmt.pix.sizeimage) + return -EINVAL; - if (*nbuffers < config_params.min_numbuffers) - *nbuffers = config_params.min_numbuffers; + if (vq->num_buffers + *nbuffers < 3) + *nbuffers = 3 - vq->num_buffers; *nplanes = 1; - sizes[0] = size; + sizes[0] = fmt ? fmt->fmt.pix.sizeimage : common->fmt.fmt.pix.sizeimage; alloc_ctxs[0] = common->alloc_ctx; + /* Calculate the offset for Y and C data in the buffer */ + vpif_calculate_offsets(ch); + return 0; } @@ -195,11 +167,8 @@ static int vpif_buffer_queue_setup(struct vb2_queue *vq, */ static void vpif_buffer_queue(struct vb2_buffer *vb) { - /* Get the file handle object and channel object */ - struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue); - struct channel_obj *ch = fh->channel; - struct vpif_cap_buffer *buf = container_of(vb, - struct vpif_cap_buffer, vb); + struct channel_obj *ch = vb2_get_drv_priv(vb->vb2_queue); + struct vpif_cap_buffer *buf = to_vpif_buffer(vb); struct common_obj *common; unsigned long flags; @@ -214,108 +183,25 @@ static void vpif_buffer_queue(struct vb2_buffer *vb) } /** - * vpif_buf_cleanup : Callback function to free buffer + * vpif_start_streaming : Starts the DMA engine for streaming * @vb: ptr to vb2_buffer - * - * This function is called from the videobuf2 layer to free memory - * allocated to the buffers + * @count: number of buffers */ -static void vpif_buf_cleanup(struct vb2_buffer *vb) -{ - /* Get the file handle object and channel object */ - struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue); - struct vpif_cap_buffer *buf = container_of(vb, - struct vpif_cap_buffer, vb); - struct channel_obj *ch = fh->channel; - struct common_obj *common; - unsigned long flags; - - common = &ch->common[VPIF_VIDEO_INDEX]; - - 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); -} - -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; - - common = &ch->common[VPIF_VIDEO_INDEX]; - mutex_lock(&common->lock); -} - -static int vpif_buffer_init(struct vb2_buffer *vb) -{ - struct vpif_cap_buffer *buf = container_of(vb, - struct vpif_cap_buffer, vb); - - INIT_LIST_HEAD(&buf->list); - - return 0; -} - -static u8 channel_first_int[VPIF_NUMBER_OF_OBJECTS][2] = - { {1, 1} }; - static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count) { struct vpif_capture_config *vpif_config_data = vpif_dev->platform_data; - struct vpif_fh *fh = vb2_get_drv_priv(vq); - struct channel_obj *ch = fh->channel; + struct channel_obj *ch = vb2_get_drv_priv(vq); struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; struct vpif_params *vpif = &ch->vpifparams; - unsigned long addr = 0; - unsigned long flags; + struct vpif_cap_buffer *buf, *tmp; + unsigned long addr, flags; int ret; - /* If buffer queue is empty, return error */ spin_lock_irqsave(&common->irqlock, flags); - if (list_empty(&common->dma_queue)) { - spin_unlock_irqrestore(&common->irqlock, flags); - vpif_dbg(1, debug, "buffer queue is empty\n"); - return -EIO; - } - /* Get the next frame from the buffer queue */ - common->cur_frm = common->next_frm = list_entry(common->dma_queue.next, - struct vpif_cap_buffer, list); - /* Remove buffer from the buffer queue */ - list_del(&common->cur_frm->list); - spin_unlock_irqrestore(&common->irqlock, flags); - /* Mark state of the current frame to active */ - common->cur_frm->vb.state = VB2_BUF_STATE_ACTIVE; - /* Initialize field_id and started member */ + /* Initialize field_id */ 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 ((vpif->std_info.frm_fmt && - ((common->fmt.fmt.pix.field != V4L2_FIELD_NONE) && - (common->fmt.fmt.pix.field != V4L2_FIELD_ANY))) || - (!vpif->std_info.frm_fmt && - (common->fmt.fmt.pix.field == V4L2_FIELD_NONE))) { - vpif_dbg(1, debug, "conflict in field format and std format\n"); - return -EINVAL; - } /* configure 1 or 2 channel mode */ if (vpif_config_data->setup_input_channel_mode) { @@ -323,21 +209,37 @@ static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count) setup_input_channel_mode(vpif->std_info.ycmux_mode); if (ret < 0) { vpif_dbg(1, debug, "can't set vpif channel mode\n"); - return ret; + goto err; } } + ret = v4l2_subdev_call(ch->sd, video, s_stream, 1); + if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV) { + vpif_dbg(1, debug, "stream on failed in subdev\n"); + goto err; + } + /* Call vpif_set_params function to set the parameters and addresses */ ret = vpif_set_video_params(vpif, ch->channel_id); - if (ret < 0) { vpif_dbg(1, debug, "can't set video params\n"); - return ret; + goto err; } - common->started = ret; + ycmux_mode = ret; vpif_config_addr(ch, ret); + /* Get the next frame from the buffer queue */ + common->cur_frm = common->next_frm = list_entry(common->dma_queue.next, + struct vpif_cap_buffer, list); + /* Remove buffer from the buffer queue */ + list_del(&common->cur_frm->list); + spin_unlock_irqrestore(&common->irqlock, flags); + /* Mark state of the current frame to active */ + common->cur_frm->vb.state = VB2_BUF_STATE_ACTIVE; + + addr = vb2_dma_contig_plane_dma_addr(&common->cur_frm->vb, 0); + common->set_addr(addr + common->ytop_off, addr + common->ybtm_off, addr + common->ctop_off, @@ -348,36 +250,76 @@ static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count) * VPIF register */ channel_first_int[VPIF_VIDEO_INDEX][ch->channel_id] = 1; - if ((VPIF_CHANNEL0_VIDEO == ch->channel_id)) { + if (VPIF_CHANNEL0_VIDEO == ch->channel_id) { channel0_intr_assert(); channel0_intr_enable(1); enable_channel0(1); } - if ((VPIF_CHANNEL1_VIDEO == ch->channel_id) || - (common->started == 2)) { + if (VPIF_CHANNEL1_VIDEO == ch->channel_id || + ycmux_mode == 2) { channel1_intr_assert(); channel1_intr_enable(1); enable_channel1(1); } return 0; + +err: + list_for_each_entry_safe(buf, tmp, &common->dma_queue, list) { + list_del(&buf->list); + vb2_buffer_done(&buf->vb, VB2_BUF_STATE_QUEUED); + } + spin_unlock_irqrestore(&common->irqlock, flags); + + return ret; } -/* abort streaming and wait for last buffer */ -static int vpif_stop_streaming(struct vb2_queue *vq) +/** + * vpif_stop_streaming : Stop the DMA engine + * @vq: ptr to vb2_queue + * + * This callback stops the DMA engine and any remaining buffers + * in the DMA queue are released. + */ +static void vpif_stop_streaming(struct vb2_queue *vq) { - struct vpif_fh *fh = vb2_get_drv_priv(vq); - struct channel_obj *ch = fh->channel; + struct channel_obj *ch = vb2_get_drv_priv(vq); struct common_obj *common; unsigned long flags; - - if (!vb2_is_streaming(vq)) - return 0; + int ret; common = &ch->common[VPIF_VIDEO_INDEX]; + /* Disable channel as per its device type and channel id */ + if (VPIF_CHANNEL0_VIDEO == ch->channel_id) { + enable_channel0(0); + channel0_intr_enable(0); + } + if (VPIF_CHANNEL1_VIDEO == ch->channel_id || + ycmux_mode == 2) { + enable_channel1(0); + channel1_intr_enable(0); + } + + ycmux_mode = 0; + + ret = v4l2_subdev_call(ch->sd, video, s_stream, 0); + if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV) + vpif_dbg(1, debug, "stream off failed in subdev\n"); + /* release all active buffers */ spin_lock_irqsave(&common->irqlock, flags); + if (common->cur_frm == common->next_frm) { + vb2_buffer_done(&common->cur_frm->vb, VB2_BUF_STATE_ERROR); + } else { + if (common->cur_frm != NULL) + vb2_buffer_done(&common->cur_frm->vb, + VB2_BUF_STATE_ERROR); + if (common->next_frm != NULL) + vb2_buffer_done(&common->next_frm->vb, + VB2_BUF_STATE_ERROR); + } + while (!list_empty(&common->dma_queue)) { common->next_frm = list_entry(common->dma_queue.next, struct vpif_cap_buffer, list); @@ -385,19 +327,13 @@ static int vpif_stop_streaming(struct vb2_queue *vq) vb2_buffer_done(&common->next_frm->vb, VB2_BUF_STATE_ERROR); } spin_unlock_irqrestore(&common->irqlock, flags); - - 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, }; @@ -411,7 +347,7 @@ static struct vb2_ops video_qops = { */ static void vpif_process_buffer_complete(struct common_obj *common) { - do_gettimeofday(&common->cur_frm->vb.v4l2_buf.timestamp); + v4l2_get_timestamp(&common->cur_frm->vb.v4l2_buf.timestamp); vb2_buffer_done(&common->cur_frm->vb, VB2_BUF_STATE_DONE); /* Make curFrm pointing to nextFrm */ @@ -474,9 +410,6 @@ static irqreturn_t vpif_channel_isr(int irq, void *dev_id) for (i = 0; i < VPIF_NUMBER_OF_OBJECTS; i++) { common = &ch->common[i]; /* skip If streaming is not started in this channel */ - if (0 == common->started) - continue; - /* Check the field format */ if (1 == ch->vpifparams.std_info.frm_fmt) { /* Progressive mode */ @@ -563,7 +496,7 @@ static int vpif_update_std_info(struct channel_obj *ch) vpif_dbg(2, debug, "vpif_update_std_info\n"); for (index = 0; index < vpif_ch_params_count; index++) { - config = &ch_params[index]; + config = &vpif_ch_params[index]; if (config->hd_sd == 0) { vpif_dbg(2, debug, "SD format\n"); if (config->stdid & vid_ch->stdid) { @@ -678,11 +611,6 @@ static void vpif_config_format(struct channel_obj *ch) vpif_dbg(2, debug, "vpif_config_format\n"); common->fmt.fmt.pix.field = V4L2_FIELD_ANY; - if (config_params.numbuffers[ch->channel_id] == 0) - common->memory = V4L2_MEMORY_USERPTR; - else - common->memory = V4L2_MEMORY_MMAP; - common->fmt.fmt.pix.sizeimage = config_params.channel_bufsize[ch->channel_id]; @@ -832,424 +760,6 @@ static void vpif_config_addr(struct channel_obj *ch, int muxmode) } /** - * vpif_mmap : It is used to map kernel space buffers into user spaces - * @filep: file pointer - * @vma: ptr to vm_area_struct - */ -static int vpif_mmap(struct file *filep, struct vm_area_struct *vma) -{ - /* Get the channel object and file handle object */ - struct vpif_fh *fh = filep->private_data; - struct channel_obj *ch = fh->channel; - struct common_obj *common = &(ch->common[VPIF_VIDEO_INDEX]); - int ret; - - vpif_dbg(2, debug, "vpif_mmap\n"); - - if (mutex_lock_interruptible(&common->lock)) - return -ERESTARTSYS; - ret = vb2_mmap(&common->buffer_queue, vma); - mutex_unlock(&common->lock); - return ret; -} - -/** - * vpif_poll: It is used for select/poll system call - * @filep: file pointer - * @wait: poll table to wait - */ -static unsigned int vpif_poll(struct file *filep, poll_table * wait) -{ - struct vpif_fh *fh = filep->private_data; - struct channel_obj *channel = fh->channel; - struct common_obj *common = &(channel->common[VPIF_VIDEO_INDEX]); - unsigned int res = 0; - - vpif_dbg(2, debug, "vpif_poll\n"); - - if (common->started) { - mutex_lock(&common->lock); - res = vb2_poll(&common->buffer_queue, filep, wait); - mutex_unlock(&common->lock); - } - return res; -} - -/** - * vpif_open : vpif open handler - * @filep: file ptr - * - * It creates object of file handle structure and stores it in private_data - * member of filepointer - */ -static int vpif_open(struct file *filep) -{ - struct video_device *vdev = video_devdata(filep); - struct common_obj *common; - struct video_obj *vid_ch; - struct channel_obj *ch; - struct vpif_fh *fh; - - vpif_dbg(2, debug, "vpif_open\n"); - - ch = video_get_drvdata(vdev); - - vid_ch = &ch->video; - common = &ch->common[VPIF_VIDEO_INDEX]; - - /* Allocate memory for the file handle object */ - fh = kzalloc(sizeof(struct vpif_fh), GFP_KERNEL); - if (NULL == fh) { - vpif_err("unable to allocate memory for file handle object\n"); - return -ENOMEM; - } - - if (mutex_lock_interruptible(&common->lock)) { - kfree(fh); - return -ERESTARTSYS; - } - /* store pointer to fh in private_data member of filep */ - filep->private_data = fh; - fh->channel = ch; - fh->initialized = 0; - /* If decoder is not initialized. initialize it */ - if (!ch->initialized) { - fh->initialized = 1; - ch->initialized = 1; - memset(&(ch->vpifparams), 0, sizeof(struct vpif_params)); - } - /* Increment channel usrs counter */ - ch->usrs++; - /* Set io_allowed member to false */ - fh->io_allowed[VPIF_VIDEO_INDEX] = 0; - /* Initialize priority of this instance to default priority */ - fh->prio = V4L2_PRIORITY_UNSET; - v4l2_prio_open(&ch->prio, &fh->prio); - mutex_unlock(&common->lock); - return 0; -} - -/** - * vpif_release : function to clean up file close - * @filep: file pointer - * - * This function deletes buffer queue, frees the buffers and the vpif file - * handle - */ -static int vpif_release(struct file *filep) -{ - struct vpif_fh *fh = filep->private_data; - struct channel_obj *ch = fh->channel; - struct common_obj *common; - - vpif_dbg(2, debug, "vpif_release\n"); - - common = &ch->common[VPIF_VIDEO_INDEX]; - - mutex_lock(&common->lock); - /* if this instance is doing IO */ - if (fh->io_allowed[VPIF_VIDEO_INDEX]) { - /* Reset io_usrs member of channel object */ - common->io_usrs = 0; - /* Disable channel as per its device type and channel id */ - if (VPIF_CHANNEL0_VIDEO == ch->channel_id) { - enable_channel0(0); - channel0_intr_enable(0); - } - if ((VPIF_CHANNEL1_VIDEO == ch->channel_id) || - (2 == common->started)) { - enable_channel1(0); - channel1_intr_enable(0); - } - common->started = 0; - /* Free buffers allocated */ - vb2_queue_release(&common->buffer_queue); - vb2_dma_contig_cleanup_ctx(common->alloc_ctx); - } - - /* Decrement channel usrs counter */ - ch->usrs--; - - /* Close the priority */ - v4l2_prio_close(&ch->prio, fh->prio); - - if (fh->initialized) - ch->initialized = 0; - - mutex_unlock(&common->lock); - filep->private_data = NULL; - kfree(fh); - return 0; -} - -/** - * vpif_reqbufs() - request buffer handler - * @file: file ptr - * @priv: file handle - * @reqbuf: request buffer structure ptr - */ -static int vpif_reqbufs(struct file *file, void *priv, - struct v4l2_requestbuffers *reqbuf) -{ - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; - struct common_obj *common; - u8 index = 0; - struct vb2_queue *q; - int ret; - - vpif_dbg(2, debug, "vpif_reqbufs\n"); - - /** - * This file handle has not initialized the channel, - * It is not allowed to do settings - */ - if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) - || (VPIF_CHANNEL1_VIDEO == ch->channel_id)) { - if (!fh->initialized) { - vpif_dbg(1, debug, "Channel Busy\n"); - return -EBUSY; - } - } - - if (V4L2_BUF_TYPE_VIDEO_CAPTURE != reqbuf->type || !vpif_dev) - return -EINVAL; - - index = VPIF_VIDEO_INDEX; - - common = &ch->common[index]; - - if (0 != common->io_usrs) - return -EBUSY; - - /* Initialize videobuf2 queue as per the buffer type */ - common->alloc_ctx = vb2_dma_contig_init_ctx(vpif_dev); - if (IS_ERR(common->alloc_ctx)) { - vpif_err("Failed to get the context\n"); - return PTR_ERR(common->alloc_ctx); - } - q = &common->buffer_queue; - q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - 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_cap_buffer); - - ret = vb2_queue_init(q); - if (ret) { - vpif_err("vpif_capture: vb2_queue_init() failed\n"); - vb2_dma_contig_cleanup_ctx(common->alloc_ctx); - return ret; - } - /* Set io allowed member of file handle to TRUE */ - fh->io_allowed[index] = 1; - /* Increment io usrs member of channel object to 1 */ - common->io_usrs = 1; - /* Store type of memory requested in channel object */ - common->memory = reqbuf->memory; - INIT_LIST_HEAD(&common->dma_queue); - - /* Allocate buffers */ - return vb2_reqbufs(&common->buffer_queue, reqbuf); -} - -/** - * vpif_querybuf() - query buffer handler - * @file: file ptr - * @priv: file handle - * @buf: v4l2 buffer structure ptr - */ -static int vpif_querybuf(struct file *file, void *priv, - struct v4l2_buffer *buf) -{ - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; - struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; - - vpif_dbg(2, debug, "vpif_querybuf\n"); - - if (common->fmt.type != buf->type) - return -EINVAL; - - if (common->memory != V4L2_MEMORY_MMAP) { - vpif_dbg(1, debug, "Invalid memory\n"); - return -EINVAL; - } - - return vb2_querybuf(&common->buffer_queue, buf); -} - -/** - * vpif_qbuf() - query buffer handler - * @file: file ptr - * @priv: file handle - * @buf: v4l2 buffer structure ptr - */ -static int vpif_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf) -{ - - 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; - - vpif_dbg(2, debug, "vpif_qbuf\n"); - - if (common->fmt.type != tbuf.type) { - vpif_err("invalid buffer type\n"); - return -EINVAL; - } - - if (!fh->io_allowed[VPIF_VIDEO_INDEX]) { - vpif_err("fh io not allowed\n"); - return -EACCES; - } - - return vb2_qbuf(&common->buffer_queue, buf); -} - -/** - * vpif_dqbuf() - query buffer handler - * @file: file ptr - * @priv: file handle - * @buf: v4l2 buffer structure ptr - */ -static int vpif_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf) -{ - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; - struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; - - vpif_dbg(2, debug, "vpif_dqbuf\n"); - - return vb2_dqbuf(&common->buffer_queue, buf, - (file->f_flags & O_NONBLOCK)); -} - -/** - * vpif_streamon() - streamon handler - * @file: file ptr - * @priv: file handle - * @buftype: v4l2 buffer type - */ -static int vpif_streamon(struct file *file, void *priv, - enum v4l2_buf_type buftype) -{ - - struct vpif_fh *fh = 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; - int ret = 0; - - vpif_dbg(2, debug, "vpif_streamon\n"); - - vpif = &ch->vpifparams; - - if (buftype != V4L2_BUF_TYPE_VIDEO_CAPTURE) { - vpif_dbg(1, debug, "buffer type not supported\n"); - return -EINVAL; - } - - /* If file handle is not allowed IO, return error */ - if (!fh->io_allowed[VPIF_VIDEO_INDEX]) { - vpif_dbg(1, debug, "io not allowed\n"); - return -EACCES; - } - - /* If Streaming is already started, return error */ - if (common->started) { - vpif_dbg(1, debug, "channel->started\n"); - return -EBUSY; - } - - if ((ch->channel_id == VPIF_CHANNEL0_VIDEO && - oth_ch->common[VPIF_VIDEO_INDEX].started && - vpif->std_info.ycmux_mode == 0) || - ((ch->channel_id == VPIF_CHANNEL1_VIDEO) && - (2 == oth_ch->common[VPIF_VIDEO_INDEX].started))) { - vpif_dbg(1, debug, "other channel is being used\n"); - return -EBUSY; - } - - ret = vpif_check_format(ch, &common->fmt.fmt.pix, 0); - if (ret) - return ret; - - /* Enable streamon on the sub device */ - ret = v4l2_subdev_call(ch->sd, video, s_stream, 1); - - if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV) { - vpif_dbg(1, debug, "stream on failed in subdev\n"); - return ret; - } - - /* Call vb2_streamon to start streaming in videobuf2 */ - ret = vb2_streamon(&common->buffer_queue, buftype); - if (ret) { - vpif_dbg(1, debug, "vb2_streamon\n"); - return ret; - } - - return ret; -} - -/** - * vpif_streamoff() - streamoff handler - * @file: file ptr - * @priv: file handle - * @buftype: v4l2 buffer type - */ -static int vpif_streamoff(struct file *file, void *priv, - enum v4l2_buf_type buftype) -{ - - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; - struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; - int ret; - - vpif_dbg(2, debug, "vpif_streamoff\n"); - - if (buftype != V4L2_BUF_TYPE_VIDEO_CAPTURE) { - vpif_dbg(1, debug, "buffer type not supported\n"); - return -EINVAL; - } - - /* If io is allowed for this file handle, return error */ - if (!fh->io_allowed[VPIF_VIDEO_INDEX]) { - vpif_dbg(1, debug, "io not allowed\n"); - return -EACCES; - } - - /* If streaming is not started, return error */ - if (!common->started) { - vpif_dbg(1, debug, "channel->started\n"); - return -EINVAL; - } - - /* disable channel */ - if (VPIF_CHANNEL0_VIDEO == ch->channel_id) { - enable_channel0(0); - channel0_intr_enable(0); - } else { - enable_channel1(0); - channel1_intr_enable(0); - } - - common->started = 0; - - ret = v4l2_subdev_call(ch->sd, video, s_stream, 0); - - if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV) - vpif_dbg(1, debug, "stream off failed in subdev\n"); - - return vb2_streamoff(&common->buffer_queue, buftype); -} - -/** * vpif_input_to_subdev() - Maps input to sub device * @vpif_cfg - global config ptr * @chan_cfg - channel config ptr @@ -1352,8 +862,8 @@ static int vpif_set_input( */ static int vpif_querystd(struct file *file, void *priv, v4l2_std_id *std_id) { - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; + struct video_device *vdev = video_devdata(file); + struct channel_obj *ch = video_get_drvdata(vdev); int ret = 0; vpif_dbg(2, debug, "vpif_querystd\n"); @@ -1379,11 +889,22 @@ static int vpif_querystd(struct file *file, void *priv, v4l2_std_id *std_id) */ static int vpif_g_std(struct file *file, void *priv, v4l2_std_id *std) { - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; + struct vpif_capture_config *config = vpif_dev->platform_data; + struct video_device *vdev = video_devdata(file); + struct channel_obj *ch = video_get_drvdata(vdev); + struct vpif_capture_chan_config *chan_cfg; + struct v4l2_input input; vpif_dbg(2, debug, "vpif_g_std\n"); + if (config->chan_config[ch->channel_id].inputs == NULL) + return -ENODATA; + + chan_cfg = &config->chan_config[ch->channel_id]; + input = chan_cfg->inputs[ch->input_idx].input; + if (input.capabilities != V4L2_IN_CAP_STD) + return -ENODATA; + *std = ch->video.stdid; return 0; } @@ -1394,36 +915,31 @@ static int vpif_g_std(struct file *file, void *priv, v4l2_std_id *std) * @priv: file handle * @std_id: ptr to std id */ -static int vpif_s_std(struct file *file, void *priv, v4l2_std_id *std_id) +static int vpif_s_std(struct file *file, void *priv, v4l2_std_id std_id) { - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; + struct vpif_capture_config *config = vpif_dev->platform_data; + struct video_device *vdev = video_devdata(file); + struct channel_obj *ch = video_get_drvdata(vdev); struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; - int ret = 0; + struct vpif_capture_chan_config *chan_cfg; + struct v4l2_input input; + int ret; vpif_dbg(2, debug, "vpif_s_std\n"); - if (common->started) { - vpif_err("streaming in progress\n"); - return -EBUSY; - } - - if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) || - (VPIF_CHANNEL1_VIDEO == ch->channel_id)) { - if (!fh->initialized) { - vpif_dbg(1, debug, "Channel Busy\n"); - return -EBUSY; - } - } + if (config->chan_config[ch->channel_id].inputs == NULL) + return -ENODATA; - ret = v4l2_prio_check(&ch->prio, fh->prio); - if (0 != ret) - return ret; + chan_cfg = &config->chan_config[ch->channel_id]; + input = chan_cfg->inputs[ch->input_idx].input; + if (input.capabilities != V4L2_IN_CAP_STD) + return -ENODATA; - fh->initialized = 1; + if (vb2_is_busy(&common->buffer_queue)) + return -EBUSY; /* Call encoder subdevice function to set the standard */ - ch->video.stdid = *std_id; + ch->video.stdid = std_id; memset(&ch->video.dv_timings, 0, sizeof(ch->video.dv_timings)); /* Get the information about the standard */ @@ -1436,7 +952,7 @@ static int vpif_s_std(struct file *file, void *priv, v4l2_std_id *std_id) vpif_config_format(ch); /* set standard in the sub device */ - ret = v4l2_subdev_call(ch->sd, core, s_std, *std_id); + ret = v4l2_subdev_call(ch->sd, video, s_std, std_id); if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV) { vpif_dbg(1, debug, "Failed to set standard for sub devices\n"); return ret; @@ -1455,9 +971,9 @@ static int vpif_enum_input(struct file *file, void *priv, { struct vpif_capture_config *config = vpif_dev->platform_data; + struct video_device *vdev = video_devdata(file); + struct channel_obj *ch = video_get_drvdata(vdev); struct vpif_capture_chan_config *chan_cfg; - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; chan_cfg = &config->chan_config[ch->channel_id]; @@ -1479,8 +995,8 @@ static int vpif_enum_input(struct file *file, void *priv, */ static int vpif_g_input(struct file *file, void *priv, unsigned int *index) { - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; + struct video_device *vdev = video_devdata(file); + struct channel_obj *ch = video_get_drvdata(vdev); *index = ch->input_idx; return 0; @@ -1495,35 +1011,19 @@ static int vpif_g_input(struct file *file, void *priv, unsigned int *index) static int vpif_s_input(struct file *file, void *priv, unsigned int index) { struct vpif_capture_config *config = vpif_dev->platform_data; - struct vpif_capture_chan_config *chan_cfg; - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; + struct video_device *vdev = video_devdata(file); + struct channel_obj *ch = video_get_drvdata(vdev); struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; - int ret; + struct vpif_capture_chan_config *chan_cfg; chan_cfg = &config->chan_config[ch->channel_id]; if (index >= chan_cfg->input_count) return -EINVAL; - if (common->started) { - vpif_err("Streaming in progress\n"); + if (vb2_is_busy(&common->buffer_queue)) return -EBUSY; - } - if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) || - (VPIF_CHANNEL1_VIDEO == ch->channel_id)) { - if (!fh->initialized) { - vpif_dbg(1, debug, "Channel Busy\n"); - return -EBUSY; - } - } - - ret = v4l2_prio_check(&ch->prio, fh->prio); - if (0 != ret) - return ret; - - fh->initialized = 1; return vpif_set_input(config, ch, index); } @@ -1536,8 +1036,8 @@ static int vpif_s_input(struct file *file, void *priv, unsigned int index) static int vpif_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *fmt) { - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; + struct video_device *vdev = video_devdata(file); + struct channel_obj *ch = video_get_drvdata(vdev); if (fmt->index != 0) { vpif_dbg(1, debug, "Invalid format index\n"); @@ -1566,8 +1066,8 @@ static int vpif_enum_fmt_vid_cap(struct file *file, void *priv, static int vpif_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *fmt) { - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; + struct video_device *vdev = video_devdata(file); + struct channel_obj *ch = video_get_drvdata(vdev); struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; return vpif_check_format(ch, pixfmt, 1); @@ -1583,8 +1083,8 @@ static int vpif_try_fmt_vid_cap(struct file *file, void *priv, static int vpif_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *fmt) { - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; + struct video_device *vdev = video_devdata(file); + struct channel_obj *ch = video_get_drvdata(vdev); struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; /* Check the validity of the buffer type */ @@ -1605,33 +1105,16 @@ static int vpif_g_fmt_vid_cap(struct file *file, void *priv, static int vpif_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *fmt) { - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; + struct video_device *vdev = video_devdata(file); + struct channel_obj *ch = video_get_drvdata(vdev); struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; struct v4l2_pix_format *pixfmt; int ret = 0; vpif_dbg(2, debug, "%s\n", __func__); - /* If streaming is started, return error */ - if (common->started) { - vpif_dbg(1, debug, "Streaming is started\n"); + if (vb2_is_busy(&common->buffer_queue)) return -EBUSY; - } - - if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) || - (VPIF_CHANNEL1_VIDEO == ch->channel_id)) { - if (!fh->initialized) { - vpif_dbg(1, debug, "Channel Busy\n"); - return -EBUSY; - } - } - - ret = v4l2_prio_check(&ch->prio, fh->prio); - if (0 != ret) - return ret; - - fh->initialized = 1; pixfmt = &fmt->fmt.pix; /* Check for valid field format */ @@ -1657,7 +1140,7 @@ static int vpif_querycap(struct file *file, void *priv, cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; - snprintf(cap->driver, sizeof(cap->driver), "%s", dev_name(vpif_dev)); + strlcpy(cap->driver, VPIF_DRIVER_NAME, sizeof(cap->driver)); snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s", dev_name(vpif_dev)); strlcpy(cap->card, config->card_name, sizeof(cap->card)); @@ -1666,61 +1149,6 @@ static int vpif_querycap(struct file *file, void *priv, } /** - * vpif_g_priority() - get priority handler - * @file: file ptr - * @priv: file handle - * @prio: ptr to v4l2_priority structure - */ -static int vpif_g_priority(struct file *file, void *priv, - enum v4l2_priority *prio) -{ - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; - - *prio = v4l2_prio_max(&ch->prio); - - return 0; -} - -/** - * vpif_s_priority() - set priority handler - * @file: file ptr - * @priv: file handle - * @prio: ptr to v4l2_priority structure - */ -static int vpif_s_priority(struct file *file, void *priv, enum v4l2_priority p) -{ - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; - - return v4l2_prio_change(&ch->prio, &fh->prio, p); -} - -/** - * vpif_cropcap() - cropcap handler - * @file: file ptr - * @priv: file handle - * @crop: ptr to v4l2_cropcap structure - */ -static int vpif_cropcap(struct file *file, void *priv, - struct v4l2_cropcap *crop) -{ - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; - struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; - - if (V4L2_BUF_TYPE_VIDEO_CAPTURE != crop->type) - return -EINVAL; - - crop->bounds.left = 0; - crop->bounds.top = 0; - crop->bounds.height = common->height; - crop->bounds.width = common->width; - crop->defrect = crop->bounds; - return 0; -} - -/** * vpif_enum_dv_timings() - ENUM_DV_TIMINGS handler * @file: file ptr * @priv: file handle @@ -1730,13 +1158,27 @@ static int vpif_enum_dv_timings(struct file *file, void *priv, struct v4l2_enum_dv_timings *timings) { - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; + struct vpif_capture_config *config = vpif_dev->platform_data; + struct video_device *vdev = video_devdata(file); + struct channel_obj *ch = video_get_drvdata(vdev); + struct vpif_capture_chan_config *chan_cfg; + struct v4l2_input input; int ret; - ret = v4l2_subdev_call(ch->sd, video, enum_dv_timings, timings); + if (config->chan_config[ch->channel_id].inputs == NULL) + return -ENODATA; + + chan_cfg = &config->chan_config[ch->channel_id]; + input = chan_cfg->inputs[ch->input_idx].input; + if (input.capabilities != V4L2_IN_CAP_DV_TIMINGS) + return -ENODATA; + + timings->pad = 0; + + ret = v4l2_subdev_call(ch->sd, pad, enum_dv_timings, timings); if (ret == -ENOIOCTLCMD || ret == -ENODEV) return -EINVAL; + return ret; } @@ -1750,13 +1192,25 @@ static int vpif_query_dv_timings(struct file *file, void *priv, struct v4l2_dv_timings *timings) { - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; + struct vpif_capture_config *config = vpif_dev->platform_data; + struct video_device *vdev = video_devdata(file); + struct channel_obj *ch = video_get_drvdata(vdev); + struct vpif_capture_chan_config *chan_cfg; + struct v4l2_input input; int ret; + if (config->chan_config[ch->channel_id].inputs == NULL) + return -ENODATA; + + chan_cfg = &config->chan_config[ch->channel_id]; + input = chan_cfg->inputs[ch->input_idx].input; + if (input.capabilities != V4L2_IN_CAP_DV_TIMINGS) + return -ENODATA; + ret = v4l2_subdev_call(ch->sd, video, query_dv_timings, timings); if (ret == -ENOIOCTLCMD || ret == -ENODEV) return -ENODATA; + return ret; } @@ -1769,19 +1223,34 @@ vpif_query_dv_timings(struct file *file, void *priv, static int vpif_s_dv_timings(struct file *file, void *priv, struct v4l2_dv_timings *timings) { - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; + struct vpif_capture_config *config = vpif_dev->platform_data; + struct video_device *vdev = video_devdata(file); + struct channel_obj *ch = video_get_drvdata(vdev); struct vpif_params *vpifparams = &ch->vpifparams; struct vpif_channel_config_params *std_info = &vpifparams->std_info; + struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; struct video_obj *vid_ch = &ch->video; struct v4l2_bt_timings *bt = &vid_ch->dv_timings.bt; + struct vpif_capture_chan_config *chan_cfg; + struct v4l2_input input; int ret; + if (config->chan_config[ch->channel_id].inputs == NULL) + return -ENODATA; + + chan_cfg = &config->chan_config[ch->channel_id]; + input = chan_cfg->inputs[ch->input_idx].input; + if (input.capabilities != V4L2_IN_CAP_DV_TIMINGS) + return -ENODATA; + if (timings->type != V4L2_DV_BT_656_1120) { vpif_dbg(2, debug, "Timing type not defined\n"); return -EINVAL; } + if (vb2_is_busy(&common->buffer_queue)) + return -EBUSY; + /* Configure subdevice timings, if any */ ret = v4l2_subdev_call(ch->sd, video, s_dv_timings, timings); if (ret == -ENOIOCTLCMD || ret == -ENODEV) @@ -1810,19 +1279,15 @@ static int vpif_s_dv_timings(struct file *file, void *priv, /* Configure video port timings */ - std_info->eav2sav = bt->hbackporch + bt->hfrontporch + - bt->hsync - 8; + std_info->eav2sav = V4L2_DV_BT_BLANKING_WIDTH(bt) - 8; std_info->sav2eav = bt->width; std_info->l1 = 1; std_info->l3 = bt->vsync + bt->vbackporch + 1; + std_info->vsize = V4L2_DV_BT_FRAME_HEIGHT(bt); if (bt->interlaced) { if (bt->il_vbackporch || bt->il_vfrontporch || bt->il_vsync) { - std_info->vsize = bt->height * 2 + - bt->vfrontporch + bt->vsync + bt->vbackporch + - bt->il_vfrontporch + bt->il_vsync + - bt->il_vbackporch; std_info->l5 = std_info->vsize/2 - (bt->vfrontporch - 1); std_info->l7 = std_info->vsize/2 + 1; @@ -1836,8 +1301,6 @@ static int vpif_s_dv_timings(struct file *file, void *priv, return -EINVAL; } } else { - std_info->vsize = bt->height + bt->vfrontporch + - bt->vsync + bt->vbackporch; std_info->l5 = std_info->vsize - (bt->vfrontporch - 1); } strncpy(std_info->name, "Custom timings BT656/1120", VPIF_MAX_NAME); @@ -1863,73 +1326,25 @@ static int vpif_s_dv_timings(struct file *file, void *priv, static int vpif_g_dv_timings(struct file *file, void *priv, struct v4l2_dv_timings *timings) { - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; + struct vpif_capture_config *config = vpif_dev->platform_data; + struct video_device *vdev = video_devdata(file); + struct channel_obj *ch = video_get_drvdata(vdev); struct video_obj *vid_ch = &ch->video; + struct vpif_capture_chan_config *chan_cfg; + struct v4l2_input input; - *timings = vid_ch->dv_timings; - - return 0; -} - -/* - * vpif_g_chip_ident() - Identify the chip - * @file: file ptr - * @priv: file handle - * @chip: chip identity - * - * Returns zero or -EINVAL if read operations fails. - */ -static int vpif_g_chip_ident(struct file *file, void *priv, - struct v4l2_dbg_chip_ident *chip) -{ - chip->ident = V4L2_IDENT_NONE; - chip->revision = 0; - if (chip->match.type != V4L2_CHIP_MATCH_I2C_DRIVER && - chip->match.type != V4L2_CHIP_MATCH_I2C_ADDR) { - vpif_dbg(2, debug, "match_type is invalid.\n"); - return -EINVAL; - } - - return v4l2_device_call_until_err(&vpif_obj.v4l2_dev, 0, core, - g_chip_ident, chip); -} - -#ifdef CONFIG_VIDEO_ADV_DEBUG -/* - * vpif_dbg_g_register() - Read register - * @file: file ptr - * @priv: file handle - * @reg: register to be read - * - * Debugging only - * Returns zero or -EINVAL if read operations fails. - */ -static int vpif_dbg_g_register(struct file *file, void *priv, - struct v4l2_dbg_register *reg){ - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; + if (config->chan_config[ch->channel_id].inputs == NULL) + return -ENODATA; - return v4l2_subdev_call(ch->sd, core, g_register, reg); -} + chan_cfg = &config->chan_config[ch->channel_id]; + input = chan_cfg->inputs[ch->input_idx].input; + if (input.capabilities != V4L2_IN_CAP_DV_TIMINGS) + return -ENODATA; -/* - * vpif_dbg_s_register() - Write to register - * @file: file ptr - * @priv: file handle - * @reg: register to be modified - * - * Debugging only - * Returns zero or -EINVAL if write operations fails. - */ -static int vpif_dbg_s_register(struct file *file, void *priv, - struct v4l2_dbg_register *reg){ - struct vpif_fh *fh = priv; - struct channel_obj *ch = fh->channel; + *timings = vid_ch->dv_timings; - return v4l2_subdev_call(ch->sd, core, s_register, reg); + return 0; } -#endif /* * vpif_log_status() - Status information @@ -1948,54 +1363,45 @@ static int vpif_log_status(struct file *filep, void *priv) /* vpif capture ioctl operations */ static const struct v4l2_ioctl_ops vpif_ioctl_ops = { - .vidioc_querycap = vpif_querycap, - .vidioc_g_priority = vpif_g_priority, - .vidioc_s_priority = vpif_s_priority, + .vidioc_querycap = vpif_querycap, .vidioc_enum_fmt_vid_cap = vpif_enum_fmt_vid_cap, - .vidioc_g_fmt_vid_cap = vpif_g_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = vpif_g_fmt_vid_cap, .vidioc_s_fmt_vid_cap = vpif_s_fmt_vid_cap, .vidioc_try_fmt_vid_cap = vpif_try_fmt_vid_cap, + .vidioc_enum_input = vpif_enum_input, .vidioc_s_input = vpif_s_input, .vidioc_g_input = vpif_g_input, - .vidioc_reqbufs = vpif_reqbufs, - .vidioc_querybuf = vpif_querybuf, + + .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_expbuf = vb2_ioctl_expbuf, + .vidioc_streamon = vb2_ioctl_streamon, + .vidioc_streamoff = vb2_ioctl_streamoff, + .vidioc_querystd = vpif_querystd, - .vidioc_s_std = vpif_s_std, + .vidioc_s_std = vpif_s_std, .vidioc_g_std = vpif_g_std, - .vidioc_qbuf = vpif_qbuf, - .vidioc_dqbuf = vpif_dqbuf, - .vidioc_streamon = vpif_streamon, - .vidioc_streamoff = vpif_streamoff, - .vidioc_cropcap = vpif_cropcap, - .vidioc_enum_dv_timings = vpif_enum_dv_timings, - .vidioc_query_dv_timings = vpif_query_dv_timings, - .vidioc_s_dv_timings = vpif_s_dv_timings, - .vidioc_g_dv_timings = vpif_g_dv_timings, - .vidioc_g_chip_ident = vpif_g_chip_ident, -#ifdef CONFIG_VIDEO_ADV_DEBUG - .vidioc_g_register = vpif_dbg_g_register, - .vidioc_s_register = vpif_dbg_s_register, -#endif + + .vidioc_enum_dv_timings = vpif_enum_dv_timings, + .vidioc_query_dv_timings = vpif_query_dv_timings, + .vidioc_s_dv_timings = vpif_s_dv_timings, + .vidioc_g_dv_timings = vpif_g_dv_timings, + .vidioc_log_status = vpif_log_status, }; /* vpif file operations */ static struct v4l2_file_operations vpif_fops = { .owner = THIS_MODULE, - .open = vpif_open, - .release = vpif_release, + .open = v4l2_fh_open, + .release = vb2_fop_release, .unlocked_ioctl = video_ioctl2, - .mmap = vpif_mmap, - .poll = vpif_poll -}; - -/* vpif video template */ -static struct video_device vpif_video_template = { - .name = "vpif", - .fops = &vpif_fops, - .minor = -1, - .ioctl_ops = &vpif_ioctl_ops, + .mmap = vb2_fop_mmap, + .poll = vb2_fop_poll }; /** @@ -2054,6 +1460,115 @@ vpif_init_free_channel_objects: return err; } +static int vpif_async_bound(struct v4l2_async_notifier *notifier, + struct v4l2_subdev *subdev, + struct v4l2_async_subdev *asd) +{ + int i; + + for (i = 0; i < vpif_obj.config->subdev_count; i++) + if (!strcmp(vpif_obj.config->subdev_info[i].name, + subdev->name)) { + vpif_obj.sd[i] = subdev; + return 0; + } + + return -EINVAL; +} + +static int vpif_probe_complete(void) +{ + struct common_obj *common; + struct video_device *vdev; + struct channel_obj *ch; + struct vb2_queue *q; + int i, j, err, k; + + for (j = 0; j < VPIF_CAPTURE_MAX_DEVICES; j++) { + ch = vpif_obj.dev[j]; + ch->channel_id = j; + common = &(ch->common[VPIF_VIDEO_INDEX]); + spin_lock_init(&common->irqlock); + mutex_init(&common->lock); + + /* select input 0 */ + err = vpif_set_input(vpif_obj.config, ch, 0); + if (err) + goto probe_out; + + /* Initialize vb2 queue */ + q = &common->buffer_queue; + q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; + q->drv_priv = ch; + q->ops = &video_qops; + q->mem_ops = &vb2_dma_contig_memops; + q->buf_struct_size = sizeof(struct vpif_cap_buffer); + q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + q->min_buffers_needed = 1; + q->lock = &common->lock; + + err = vb2_queue_init(q); + if (err) { + vpif_err("vpif_capture: vb2_queue_init() failed\n"); + goto probe_out; + } + + common->alloc_ctx = vb2_dma_contig_init_ctx(vpif_dev); + if (IS_ERR(common->alloc_ctx)) { + vpif_err("Failed to get the context\n"); + err = PTR_ERR(common->alloc_ctx); + goto probe_out; + } + + INIT_LIST_HEAD(&common->dma_queue); + + /* Initialize the video_device structure */ + vdev = ch->video_dev; + strlcpy(vdev->name, VPIF_DRIVER_NAME, sizeof(vdev->name)); + vdev->release = video_device_release; + vdev->fops = &vpif_fops; + vdev->ioctl_ops = &vpif_ioctl_ops; + vdev->v4l2_dev = &vpif_obj.v4l2_dev; + vdev->vfl_dir = VFL_DIR_RX; + vdev->queue = q; + vdev->lock = &common->lock; + set_bit(V4L2_FL_USE_FH_PRIO, &vdev->flags); + video_set_drvdata(ch->video_dev, ch); + err = video_register_device(vdev, + VFL_TYPE_GRABBER, (j ? 1 : 0)); + if (err) + goto probe_out; + } + + v4l2_info(&vpif_obj.v4l2_dev, "VPIF capture driver initialized\n"); + return 0; + +probe_out: + for (k = 0; k < j; k++) { + /* Get the pointer to the channel object */ + ch = vpif_obj.dev[k]; + common = &ch->common[k]; + vb2_dma_contig_cleanup_ctx(common->alloc_ctx); + /* Unregister video device */ + video_unregister_device(ch->video_dev); + } + kfree(vpif_obj.sd); + for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { + ch = vpif_obj.dev[i]; + /* Note: does nothing if ch->video_dev == NULL */ + video_device_release(ch->video_dev); + } + v4l2_device_unregister(&vpif_obj.v4l2_dev); + + return err; +} + +static int vpif_async_complete(struct v4l2_async_notifier *notifier) +{ + return vpif_probe_complete(); +} + /** * vpif_probe : This function probes the vpif capture driver * @pdev: platform device pointer @@ -2064,16 +1579,13 @@ vpif_init_free_channel_objects: static __init int vpif_probe(struct platform_device *pdev) { struct vpif_subdev_info *subdevdata; - struct vpif_capture_config *config; - int i, j, k, err; + int i, j, err; int res_idx = 0; struct i2c_adapter *i2c_adap; struct channel_obj *ch; - struct common_obj *common; struct video_device *vfd; struct resource *res; int subdev_count; - size_t size; vpif_dev = &pdev->dev; @@ -2090,16 +1602,13 @@ static __init int vpif_probe(struct platform_device *pdev) } while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, res_idx))) { - for (i = res->start; i <= res->end; i++) { - if (request_irq(i, vpif_channel_isr, IRQF_SHARED, - "VPIF_Capture", (void *) - (&vpif_obj.dev[res_idx]->channel_id))) { - err = -EBUSY; - for (j = 0; j < i; j++) - free_irq(j, (void *) - (&vpif_obj.dev[res_idx]->channel_id)); - goto vpif_int_err; - } + err = devm_request_irq(&pdev->dev, res->start, vpif_channel_isr, + IRQF_SHARED, VPIF_DRIVER_NAME, + (void *)(&vpif_obj.dev[res_idx]-> + channel_id)); + if (err) { + err = -EINVAL; + goto vpif_unregister; } res_idx++; } @@ -2115,41 +1624,16 @@ static __init int vpif_probe(struct platform_device *pdev) video_device_release(ch->video_dev); } err = -ENOMEM; - goto vpif_int_err; + goto vpif_unregister; } - /* Initialize field of video device */ - *vfd = vpif_video_template; - vfd->v4l2_dev = &vpif_obj.v4l2_dev; - vfd->release = video_device_release; - snprintf(vfd->name, sizeof(vfd->name), - "VPIF_Capture_DRIVER_V%s", - VPIF_CAPTURE_VERSION); /* Set video_dev to the video device */ ch->video_dev = vfd; } - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (res) { - size = resource_size(res); - /* The resources are divided into two equal memory and when we - * have HD output we can add them together - */ - for (j = 0; j < VPIF_CAPTURE_MAX_DEVICES; j++) { - ch = vpif_obj.dev[j]; - ch->channel_id = j; - /* only enabled if second resource exists */ - config_params.video_limit[ch->channel_id] = 0; - if (size) - config_params.video_limit[ch->channel_id] = - size/2; - } - } + vpif_obj.config = pdev->dev.platform_data; - i2c_adap = i2c_get_adapter(1); - config = pdev->dev.platform_data; - - subdev_count = config->subdev_count; + subdev_count = vpif_obj.config->subdev_count; vpif_obj.sd = kzalloc(sizeof(struct v4l2_subdev *) * subdev_count, GFP_KERNEL); if (vpif_obj.sd == NULL) { @@ -2158,53 +1642,43 @@ static __init int vpif_probe(struct platform_device *pdev) goto vpif_sd_error; } - for (i = 0; i < subdev_count; i++) { - subdevdata = &config->subdev_info[i]; - vpif_obj.sd[i] = - v4l2_i2c_new_subdev_board(&vpif_obj.v4l2_dev, - i2c_adap, - &subdevdata->board_info, - NULL); - - if (!vpif_obj.sd[i]) { - vpif_err("Error registering v4l2 subdevice\n"); + if (!vpif_obj.config->asd_sizes) { + i2c_adap = i2c_get_adapter(1); + for (i = 0; i < subdev_count; i++) { + subdevdata = &vpif_obj.config->subdev_info[i]; + vpif_obj.sd[i] = + v4l2_i2c_new_subdev_board(&vpif_obj.v4l2_dev, + i2c_adap, + &subdevdata-> + board_info, + NULL); + + if (!vpif_obj.sd[i]) { + vpif_err("Error registering v4l2 subdevice\n"); + err = -ENODEV; + goto probe_subdev_out; + } + v4l2_info(&vpif_obj.v4l2_dev, + "registered sub device %s\n", + subdevdata->name); + } + vpif_probe_complete(); + } else { + vpif_obj.notifier.subdevs = vpif_obj.config->asd; + vpif_obj.notifier.num_subdevs = vpif_obj.config->asd_sizes[0]; + vpif_obj.notifier.bound = vpif_async_bound; + vpif_obj.notifier.complete = vpif_async_complete; + err = v4l2_async_notifier_register(&vpif_obj.v4l2_dev, + &vpif_obj.notifier); + if (err) { + vpif_err("Error registering async notifier\n"); + err = -EINVAL; goto probe_subdev_out; } - v4l2_info(&vpif_obj.v4l2_dev, "registered sub device %s\n", - subdevdata->name); } - for (j = 0; j < VPIF_CAPTURE_MAX_DEVICES; j++) { - ch = vpif_obj.dev[j]; - ch->channel_id = j; - common = &(ch->common[VPIF_VIDEO_INDEX]); - spin_lock_init(&common->irqlock); - mutex_init(&common->lock); - ch->video_dev->lock = &common->lock; - /* Initialize prio member of channel object */ - v4l2_prio_init(&ch->prio); - video_set_drvdata(ch->video_dev, ch); - - /* select input 0 */ - err = vpif_set_input(config, ch, 0); - if (err) - goto probe_out; - - err = video_register_device(ch->video_dev, - VFL_TYPE_GRABBER, (j ? 1 : 0)); - if (err) - goto probe_out; - } - v4l2_info(&vpif_obj.v4l2_dev, "VPIF capture driver initialized\n"); return 0; -probe_out: - for (k = 0; k < j; k++) { - /* Get the pointer to the channel object */ - ch = vpif_obj.dev[k]; - /* Unregister video device */ - video_unregister_device(ch->video_dev); - } probe_subdev_out: /* free sub devices memory */ kfree(vpif_obj.sd); @@ -2215,13 +1689,9 @@ vpif_sd_error: /* Note: does nothing if ch->video_dev == NULL */ video_device_release(ch->video_dev); } -vpif_int_err: +vpif_unregister: v4l2_device_unregister(&vpif_obj.v4l2_dev); - for (i = 0; i < res_idx; i++) { - res = platform_get_resource(pdev, IORESOURCE_IRQ, i); - for (j = res->start; j <= res->end; j++) - free_irq(j, (void *)(&vpif_obj.dev[i]->channel_id)); - } + return err; } @@ -2233,22 +1703,27 @@ vpif_int_err: */ static int vpif_remove(struct platform_device *device) { - int i; + struct common_obj *common; struct channel_obj *ch; + int i; v4l2_device_unregister(&vpif_obj.v4l2_dev); + kfree(vpif_obj.sd); /* un-register device */ for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { /* Get the pointer to the channel object */ ch = vpif_obj.dev[i]; + common = &ch->common[i]; + vb2_dma_contig_cleanup_ctx(common->alloc_ctx); /* Unregister video device */ video_unregister_device(ch->video_dev); + kfree(vpif_obj.dev[i]); } return 0; } -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP /** * vpif_suspend: vpif device suspend */ @@ -2263,18 +1738,20 @@ static int vpif_suspend(struct device *dev) /* Get the pointer to the channel object */ ch = vpif_obj.dev[i]; common = &ch->common[VPIF_VIDEO_INDEX]; + + if (!vb2_is_streaming(&common->buffer_queue)) + continue; + mutex_lock(&common->lock); - if (ch->usrs && common->io_usrs) { - /* Disable channel */ - if (ch->channel_id == VPIF_CHANNEL0_VIDEO) { - enable_channel0(0); - channel0_intr_enable(0); - } - if (ch->channel_id == VPIF_CHANNEL1_VIDEO || - common->started == 2) { - enable_channel1(0); - channel1_intr_enable(0); - } + /* Disable channel */ + if (ch->channel_id == VPIF_CHANNEL0_VIDEO) { + enable_channel0(0); + channel0_intr_enable(0); + } + if (ch->channel_id == VPIF_CHANNEL1_VIDEO || + ycmux_mode == 2) { + enable_channel1(0); + channel1_intr_enable(0); } mutex_unlock(&common->lock); } @@ -2295,86 +1772,38 @@ static int vpif_resume(struct device *dev) /* Get the pointer to the channel object */ ch = vpif_obj.dev[i]; common = &ch->common[VPIF_VIDEO_INDEX]; + + if (!vb2_is_streaming(&common->buffer_queue)) + continue; + mutex_lock(&common->lock); - if (ch->usrs && common->io_usrs) { - /* Disable channel */ - if (ch->channel_id == VPIF_CHANNEL0_VIDEO) { - enable_channel0(1); - channel0_intr_enable(1); - } - if (ch->channel_id == VPIF_CHANNEL1_VIDEO || - common->started == 2) { - enable_channel1(1); - channel1_intr_enable(1); - } + /* Enable channel */ + if (ch->channel_id == VPIF_CHANNEL0_VIDEO) { + enable_channel0(1); + channel0_intr_enable(1); + } + if (ch->channel_id == VPIF_CHANNEL1_VIDEO || + ycmux_mode == 2) { + enable_channel1(1); + channel1_intr_enable(1); } mutex_unlock(&common->lock); } return 0; } - -static const struct dev_pm_ops vpif_dev_pm_ops = { - .suspend = vpif_suspend, - .resume = vpif_resume, -}; - -#define vpif_pm_ops (&vpif_dev_pm_ops) -#else -#define vpif_pm_ops NULL #endif +static SIMPLE_DEV_PM_OPS(vpif_pm_ops, vpif_suspend, vpif_resume); + static __refdata struct platform_driver vpif_driver = { .driver = { - .name = "vpif_capture", + .name = VPIF_DRIVER_NAME, .owner = THIS_MODULE, - .pm = vpif_pm_ops, + .pm = &vpif_pm_ops, }, .probe = vpif_probe, .remove = vpif_remove, }; -/** - * vpif_init: initialize the vpif driver - * - * This function registers device and driver to the kernel, requests irq - * handler and allocates memory - * for channel objects - */ -static __init int vpif_init(void) -{ - return platform_driver_register(&vpif_driver); -} - -/** - * vpif_cleanup : This function clean up the vpif capture resources - * - * This will un-registers device and driver to the kernel, frees - * requested irq handler and de-allocates memory allocated for channel - * objects. - */ -static void vpif_cleanup(void) -{ - struct platform_device *pdev; - struct resource *res; - int irq_num; - int i = 0; - - pdev = container_of(vpif_dev, struct platform_device, dev); - while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, i))) { - for (irq_num = res->start; irq_num <= res->end; irq_num++) - free_irq(irq_num, - (void *)(&vpif_obj.dev[i]->channel_id)); - i++; - } - - platform_driver_unregister(&vpif_driver); - - kfree(vpif_obj.sd); - for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) - kfree(vpif_obj.dev[i]); -} - -/* Function for module initialization and cleanup */ -module_init(vpif_init); -module_exit(vpif_cleanup); +module_platform_driver(vpif_driver); |