| /* |
| * 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 |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * TODO : add support for VBI & HBI data service |
| * add static buffer allocation |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/interrupt.h> |
| #include <linux/of_graph.h> |
| #include <linux/platform_device.h> |
| #include <linux/slab.h> |
| |
| #include <media/v4l2-fwnode.h> |
| #include <media/v4l2-ioctl.h> |
| #include <media/i2c/tvp514x.h> |
| #include <media/v4l2-mediabus.h> |
| |
| #include <linux/videodev2.h> |
| |
| #include "vpif.h" |
| #include "vpif_capture.h" |
| |
| MODULE_DESCRIPTION("TI DaVinci VPIF Capture driver"); |
| MODULE_LICENSE("GPL"); |
| MODULE_VERSION(VPIF_CAPTURE_VERSION); |
| |
| #define vpif_err(fmt, arg...) v4l2_err(&vpif_obj.v4l2_dev, fmt, ## arg) |
| #define vpif_dbg(level, debug, fmt, arg...) \ |
| v4l2_dbg(level, debug, &vpif_obj.v4l2_dev, fmt, ## arg) |
| |
| static int debug = 1; |
| |
| module_param(debug, int, 0644); |
| |
| MODULE_PARM_DESC(debug, "Debug level 0-1"); |
| |
| #define VPIF_DRIVER_NAME "vpif_capture" |
| MODULE_ALIAS("platform:" VPIF_DRIVER_NAME); |
| |
| /* 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_v4l2_buffer *vb) |
| { |
| return container_of(vb, struct vpif_cap_buffer, vb); |
| } |
| |
| /** |
| * vpif_buffer_prepare : callback function for buffer prepare |
| * @vb: ptr to vb2_buffer |
| * |
| * This is the callback function for buffer prepare when vb2_qbuf() |
| * function is called. The buffer is prepared and user space virtual address |
| * or user address is converted into physical address |
| */ |
| static int vpif_buffer_prepare(struct vb2_buffer *vb) |
| { |
| struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
| struct vb2_queue *q = vb->vb2_queue; |
| struct channel_obj *ch = vb2_get_drv_priv(q); |
| struct common_obj *common; |
| unsigned long addr; |
| |
| vpif_dbg(2, debug, "vpif_buffer_prepare\n"); |
| |
| common = &ch->common[VPIF_VIDEO_INDEX]; |
| |
| 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; |
| |
| vbuf->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; |
| } |
| |
| /** |
| * vpif_buffer_queue_setup : Callback function for buffer setup. |
| * @vq: vb2_queue ptr |
| * @nbuffers: ptr to number of buffers requested by application |
| * @nplanes:: contains number of distinct video planes needed to hold a frame |
| * @sizes[]: contains the size (in bytes) of each plane. |
| * @alloc_devs: ptr to allocation context |
| * |
| * This callback function is called when reqbuf() is called to adjust |
| * the buffer count and buffer size |
| */ |
| static int vpif_buffer_queue_setup(struct vb2_queue *vq, |
| unsigned int *nbuffers, unsigned int *nplanes, |
| unsigned int sizes[], struct device *alloc_devs[]) |
| { |
| struct channel_obj *ch = vb2_get_drv_priv(vq); |
| struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; |
| unsigned size = common->fmt.fmt.pix.sizeimage; |
| |
| vpif_dbg(2, debug, "vpif_buffer_setup\n"); |
| |
| if (*nplanes) { |
| if (sizes[0] < size) |
| return -EINVAL; |
| size = sizes[0]; |
| } |
| |
| if (vq->num_buffers + *nbuffers < 3) |
| *nbuffers = 3 - vq->num_buffers; |
| |
| *nplanes = 1; |
| sizes[0] = size; |
| |
| /* Calculate the offset for Y and C data in the buffer */ |
| vpif_calculate_offsets(ch); |
| |
| return 0; |
| } |
| |
| /** |
| * vpif_buffer_queue : Callback function to add buffer to DMA queue |
| * @vb: ptr to vb2_buffer |
| */ |
| static void vpif_buffer_queue(struct vb2_buffer *vb) |
| { |
| struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
| struct channel_obj *ch = vb2_get_drv_priv(vb->vb2_queue); |
| struct vpif_cap_buffer *buf = to_vpif_buffer(vbuf); |
| struct common_obj *common; |
| unsigned long flags; |
| |
| common = &ch->common[VPIF_VIDEO_INDEX]; |
| |
| vpif_dbg(2, debug, "vpif_buffer_queue\n"); |
| |
| spin_lock_irqsave(&common->irqlock, flags); |
| /* add the buffer to the DMA queue */ |
| list_add_tail(&buf->list, &common->dma_queue); |
| spin_unlock_irqrestore(&common->irqlock, flags); |
| } |
| |
| /** |
| * vpif_start_streaming : Starts the DMA engine for streaming |
| * @vb: ptr to vb2_buffer |
| * @count: number of buffers |
| */ |
| static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count) |
| { |
| struct vpif_capture_config *vpif_config_data = |
| vpif_dev->platform_data; |
| struct channel_obj *ch = vb2_get_drv_priv(vq); |
| struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; |
| struct vpif_params *vpif = &ch->vpifparams; |
| struct vpif_cap_buffer *buf, *tmp; |
| unsigned long addr, flags; |
| int ret; |
| |
| /* Initialize field_id */ |
| ch->field_id = 0; |
| |
| /* configure 1 or 2 channel mode */ |
| if (vpif_config_data->setup_input_channel_mode) { |
| ret = vpif_config_data-> |
| setup_input_channel_mode(vpif->std_info.ycmux_mode); |
| if (ret < 0) { |
| vpif_dbg(1, debug, "can't set vpif channel mode\n"); |
| 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"); |
| goto err; |
| } |
| |
| ycmux_mode = ret; |
| vpif_config_addr(ch, ret); |
| |
| /* Get the next frame from the buffer queue */ |
| spin_lock_irqsave(&common->irqlock, flags); |
| 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); |
| |
| addr = vb2_dma_contig_plane_dma_addr(&common->cur_frm->vb.vb2_buf, 0); |
| |
| 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 |
| */ |
| channel_first_int[VPIF_VIDEO_INDEX][ch->channel_id] = 1; |
| if (VPIF_CHANNEL0_VIDEO == ch->channel_id) { |
| channel0_intr_assert(); |
| channel0_intr_enable(1); |
| enable_channel0(1); |
| } |
| if (VPIF_CHANNEL1_VIDEO == ch->channel_id || |
| ycmux_mode == 2) { |
| channel1_intr_assert(); |
| channel1_intr_enable(1); |
| enable_channel1(1); |
| } |
| |
| return 0; |
| |
| err: |
| spin_lock_irqsave(&common->irqlock, flags); |
| list_for_each_entry_safe(buf, tmp, &common->dma_queue, list) { |
| list_del(&buf->list); |
| vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_QUEUED); |
| } |
| spin_unlock_irqrestore(&common->irqlock, flags); |
| |
| return ret; |
| } |
| |
| /** |
| * 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 channel_obj *ch = vb2_get_drv_priv(vq); |
| struct common_obj *common; |
| unsigned long flags; |
| 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 */ |
| if (common->cur_frm == common->next_frm) { |
| vb2_buffer_done(&common->cur_frm->vb.vb2_buf, |
| VB2_BUF_STATE_ERROR); |
| } else { |
| if (common->cur_frm) |
| vb2_buffer_done(&common->cur_frm->vb.vb2_buf, |
| VB2_BUF_STATE_ERROR); |
| if (common->next_frm) |
| vb2_buffer_done(&common->next_frm->vb.vb2_buf, |
| VB2_BUF_STATE_ERROR); |
| } |
| |
| spin_lock_irqsave(&common->irqlock, flags); |
| while (!list_empty(&common->dma_queue)) { |
| common->next_frm = list_entry(common->dma_queue.next, |
| struct vpif_cap_buffer, list); |
| list_del(&common->next_frm->list); |
| vb2_buffer_done(&common->next_frm->vb.vb2_buf, |
| VB2_BUF_STATE_ERROR); |
| } |
| spin_unlock_irqrestore(&common->irqlock, flags); |
| } |
| |
| static const struct vb2_ops video_qops = { |
| .queue_setup = vpif_buffer_queue_setup, |
| .buf_prepare = vpif_buffer_prepare, |
| .start_streaming = vpif_start_streaming, |
| .stop_streaming = vpif_stop_streaming, |
| .buf_queue = vpif_buffer_queue, |
| .wait_prepare = vb2_ops_wait_prepare, |
| .wait_finish = vb2_ops_wait_finish, |
| }; |
| |
| /** |
| * vpif_process_buffer_complete: process a completed buffer |
| * @common: ptr to common channel object |
| * |
| * This function time stamp the buffer and mark it as DONE. It also |
| * wake up any process waiting on the QUEUE and set the next buffer |
| * as current |
| */ |
| static void vpif_process_buffer_complete(struct common_obj *common) |
| { |
| common->cur_frm->vb.vb2_buf.timestamp = ktime_get_ns(); |
| vb2_buffer_done(&common->cur_frm->vb.vb2_buf, VB2_BUF_STATE_DONE); |
| /* Make curFrm pointing to nextFrm */ |
| common->cur_frm = common->next_frm; |
| } |
| |
| /** |
| * vpif_schedule_next_buffer: set next buffer address for capture |
| * @common : ptr to common channel object |
| * |
| * This function will get next buffer from the dma queue and |
| * set the buffer address in the vpif register for capture. |
| * the buffer is marked active |
| */ |
| static void vpif_schedule_next_buffer(struct common_obj *common) |
| { |
| unsigned long addr = 0; |
| |
| spin_lock(&common->irqlock); |
| common->next_frm = list_entry(common->dma_queue.next, |
| struct vpif_cap_buffer, list); |
| /* Remove that buffer from the buffer queue */ |
| list_del(&common->next_frm->list); |
| spin_unlock(&common->irqlock); |
| addr = vb2_dma_contig_plane_dma_addr(&common->next_frm->vb.vb2_buf, 0); |
| |
| /* Set top and bottom field addresses in VPIF registers */ |
| common->set_addr(addr + common->ytop_off, |
| addr + common->ybtm_off, |
| addr + common->ctop_off, |
| addr + common->cbtm_off); |
| } |
| |
| /** |
| * vpif_channel_isr : ISR handler for vpif capture |
| * @irq: irq number |
| * @dev_id: dev_id ptr |
| * |
| * It changes status of the captured buffer, takes next buffer from the queue |
| * and sets its address in VPIF registers |
| */ |
| static irqreturn_t vpif_channel_isr(int irq, void *dev_id) |
| { |
| struct vpif_device *dev = &vpif_obj; |
| struct common_obj *common; |
| struct channel_obj *ch; |
| int channel_id; |
| int fid = -1, i; |
| |
| channel_id = *(int *)(dev_id); |
| if (!vpif_intr_status(channel_id)) |
| return IRQ_NONE; |
| |
| ch = dev->dev[channel_id]; |
| |
| for (i = 0; i < VPIF_NUMBER_OF_OBJECTS; i++) { |
| common = &ch->common[i]; |
| /* skip If streaming is not started in this channel */ |
| /* Check the field format */ |
| if (1 == ch->vpifparams.std_info.frm_fmt || |
| common->fmt.fmt.pix.field == V4L2_FIELD_NONE) { |
| /* Progressive mode */ |
| spin_lock(&common->irqlock); |
| if (list_empty(&common->dma_queue)) { |
| spin_unlock(&common->irqlock); |
| continue; |
| } |
| spin_unlock(&common->irqlock); |
| |
| if (!channel_first_int[i][channel_id]) |
| vpif_process_buffer_complete(common); |
| |
| channel_first_int[i][channel_id] = 0; |
| |
| vpif_schedule_next_buffer(common); |
| |
| |
| channel_first_int[i][channel_id] = 0; |
| } else { |
| /** |
| * Interlaced mode. If it is first interrupt, ignore |
| * it |
| */ |
| if (channel_first_int[i][channel_id]) { |
| channel_first_int[i][channel_id] = 0; |
| continue; |
| } |
| if (0 == i) { |
| ch->field_id ^= 1; |
| /* Get field id from VPIF registers */ |
| fid = vpif_channel_getfid(ch->channel_id); |
| if (fid != ch->field_id) { |
| /** |
| * If field id does not match stored |
| * field id, make them in sync |
| */ |
| if (0 == fid) |
| ch->field_id = fid; |
| return IRQ_HANDLED; |
| } |
| } |
| /* device field id and local field id are in sync */ |
| if (0 == fid) { |
| /* this is even field */ |
| if (common->cur_frm == common->next_frm) |
| continue; |
| |
| /* mark the current buffer as done */ |
| vpif_process_buffer_complete(common); |
| } else if (1 == fid) { |
| /* odd field */ |
| spin_lock(&common->irqlock); |
| if (list_empty(&common->dma_queue) || |
| (common->cur_frm != common->next_frm)) { |
| spin_unlock(&common->irqlock); |
| continue; |
| } |
| spin_unlock(&common->irqlock); |
| |
| vpif_schedule_next_buffer(common); |
| } |
| } |
| } |
| return IRQ_HANDLED; |
| } |
| |
| /** |
| * vpif_update_std_info() - update standard related info |
| * @ch: ptr to channel object |
| * |
| * For a given standard selected by application, update values |
| * in the device data structures |
| */ |
| static int vpif_update_std_info(struct channel_obj *ch) |
| { |
| struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; |
| struct vpif_params *vpifparams = &ch->vpifparams; |
| const struct vpif_channel_config_params *config; |
| struct vpif_channel_config_params *std_info = &vpifparams->std_info; |
| struct video_obj *vid_ch = &ch->video; |
| int index; |
| struct v4l2_pix_format *pixfmt = &common->fmt.fmt.pix; |
| |
| vpif_dbg(2, debug, "vpif_update_std_info\n"); |
| |
| /* |
| * if called after try_fmt or g_fmt, there will already be a size |
| * so use that by default. |
| */ |
| if (pixfmt->width && pixfmt->height) { |
| if (pixfmt->field == V4L2_FIELD_ANY || |
| pixfmt->field == V4L2_FIELD_NONE) |
| pixfmt->field = V4L2_FIELD_NONE; |
| |
| vpifparams->iface.if_type = VPIF_IF_BT656; |
| if (pixfmt->pixelformat == V4L2_PIX_FMT_SGRBG10 || |
| pixfmt->pixelformat == V4L2_PIX_FMT_SBGGR8) |
| vpifparams->iface.if_type = VPIF_IF_RAW_BAYER; |
| |
| if (pixfmt->pixelformat == V4L2_PIX_FMT_SGRBG10) |
| vpifparams->params.data_sz = 1; /* 10 bits/pixel. */ |
| |
| /* |
| * For raw formats from camera sensors, we don't need |
| * the std_info from table lookup, so nothing else to do here. |
| */ |
| if (vpifparams->iface.if_type == VPIF_IF_RAW_BAYER) { |
| memset(std_info, 0, sizeof(struct vpif_channel_config_params)); |
| vpifparams->std_info.capture_format = 1; /* CCD/raw mode */ |
| return 0; |
| } |
| } |
| |
| for (index = 0; index < vpif_ch_params_count; index++) { |
| config = &vpif_ch_params[index]; |
| if (config->hd_sd == 0) { |
| vpif_dbg(2, debug, "SD format\n"); |
| if (config->stdid & vid_ch->stdid) { |
| memcpy(std_info, config, sizeof(*config)); |
| break; |
| } |
| } else { |
| vpif_dbg(2, debug, "HD format\n"); |
| if (!memcmp(&config->dv_timings, &vid_ch->dv_timings, |
| sizeof(vid_ch->dv_timings))) { |
| memcpy(std_info, config, sizeof(*config)); |
| break; |
| } |
| } |
| } |
| |
| /* standard not found */ |
| if (index == vpif_ch_params_count) |
| return -EINVAL; |
| |
| common->fmt.fmt.pix.width = std_info->width; |
| common->width = std_info->width; |
| common->fmt.fmt.pix.height = std_info->height; |
| common->height = std_info->height; |
| common->fmt.fmt.pix.sizeimage = common->height * common->width * 2; |
| common->fmt.fmt.pix.bytesperline = std_info->width; |
| vpifparams->video_params.hpitch = std_info->width; |
| vpifparams->video_params.storage_mode = std_info->frm_fmt; |
| |
| if (vid_ch->stdid) |
| common->fmt.fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; |
| else |
| common->fmt.fmt.pix.colorspace = V4L2_COLORSPACE_REC709; |
| |
| if (ch->vpifparams.std_info.frm_fmt) |
| common->fmt.fmt.pix.field = V4L2_FIELD_NONE; |
| else |
| common->fmt.fmt.pix.field = V4L2_FIELD_INTERLACED; |
| |
| if (ch->vpifparams.iface.if_type == VPIF_IF_RAW_BAYER) |
| common->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_SBGGR8; |
| else |
| common->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_NV16; |
| |
| common->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| |
| return 0; |
| } |
| |
| /** |
| * vpif_calculate_offsets : This function calculates buffers offsets |
| * @ch : ptr to channel object |
| * |
| * This function calculates buffer offsets for Y and C in the top and |
| * bottom field |
| */ |
| static void vpif_calculate_offsets(struct channel_obj *ch) |
| { |
| unsigned int hpitch, sizeimage; |
| struct video_obj *vid_ch = &(ch->video); |
| struct vpif_params *vpifparams = &ch->vpifparams; |
| struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; |
| enum v4l2_field field = common->fmt.fmt.pix.field; |
| |
| vpif_dbg(2, debug, "vpif_calculate_offsets\n"); |
| |
| if (V4L2_FIELD_ANY == field) { |
| if (vpifparams->std_info.frm_fmt) |
| vid_ch->buf_field = V4L2_FIELD_NONE; |
| else |
| vid_ch->buf_field = V4L2_FIELD_INTERLACED; |
| } else |
| vid_ch->buf_field = common->fmt.fmt.pix.field; |
| |
| sizeimage = common->fmt.fmt.pix.sizeimage; |
| |
| hpitch = common->fmt.fmt.pix.bytesperline; |
| |
| if ((V4L2_FIELD_NONE == vid_ch->buf_field) || |
| (V4L2_FIELD_INTERLACED == vid_ch->buf_field)) { |
| /* Calculate offsets for Y top, Y Bottom, C top and C Bottom */ |
| common->ytop_off = 0; |
| common->ybtm_off = hpitch; |
| common->ctop_off = sizeimage / 2; |
| common->cbtm_off = sizeimage / 2 + hpitch; |
| } else if (V4L2_FIELD_SEQ_TB == vid_ch->buf_field) { |
| /* Calculate offsets for Y top, Y Bottom, C top and C Bottom */ |
| common->ytop_off = 0; |
| common->ybtm_off = sizeimage / 4; |
| common->ctop_off = sizeimage / 2; |
| common->cbtm_off = common->ctop_off + sizeimage / 4; |
| } else if (V4L2_FIELD_SEQ_BT == vid_ch->buf_field) { |
| /* Calculate offsets for Y top, Y Bottom, C top and C Bottom */ |
| common->ybtm_off = 0; |
| common->ytop_off = sizeimage / 4; |
| common->cbtm_off = sizeimage / 2; |
| common->ctop_off = common->cbtm_off + sizeimage / 4; |
| } |
| if ((V4L2_FIELD_NONE == vid_ch->buf_field) || |
| (V4L2_FIELD_INTERLACED == vid_ch->buf_field)) |
| vpifparams->video_params.storage_mode = 1; |
| else |
| vpifparams->video_params.storage_mode = 0; |
| |
| if (1 == vpifparams->std_info.frm_fmt) |
| vpifparams->video_params.hpitch = |
| common->fmt.fmt.pix.bytesperline; |
| else { |
| if ((field == V4L2_FIELD_ANY) |
| || (field == V4L2_FIELD_INTERLACED)) |
| vpifparams->video_params.hpitch = |
| common->fmt.fmt.pix.bytesperline * 2; |
| else |
| vpifparams->video_params.hpitch = |
| common->fmt.fmt.pix.bytesperline; |
| } |
| |
| ch->vpifparams.video_params.stdid = vpifparams->std_info.stdid; |
| } |
| |
| /** |
| * vpif_get_default_field() - Get default field type based on interface |
| * @vpif_params - ptr to vpif params |
| */ |
| static inline enum v4l2_field vpif_get_default_field( |
| struct vpif_interface *iface) |
| { |
| return (iface->if_type == VPIF_IF_RAW_BAYER) ? V4L2_FIELD_NONE : |
| V4L2_FIELD_INTERLACED; |
| } |
| |
| /** |
| * vpif_config_addr() - function to configure buffer address in vpif |
| * @ch - channel ptr |
| * @muxmode - channel mux mode |
| */ |
| static void vpif_config_addr(struct channel_obj *ch, int muxmode) |
| { |
| struct common_obj *common; |
| |
| vpif_dbg(2, debug, "vpif_config_addr\n"); |
| |
| common = &(ch->common[VPIF_VIDEO_INDEX]); |
| |
| if (VPIF_CHANNEL1_VIDEO == ch->channel_id) |
| common->set_addr = ch1_set_videobuf_addr; |
| else if (2 == muxmode) |
| common->set_addr = ch0_set_videobuf_addr_yc_nmux; |
| else |
| common->set_addr = ch0_set_videobuf_addr; |
| } |
| |
| /** |
| * vpif_input_to_subdev() - Maps input to sub device |
| * @vpif_cfg - global config ptr |
| * @chan_cfg - channel config ptr |
| * @input_index - Given input index from application |
| * |
| * lookup the sub device information for a given input index. |
| * we report all the inputs to application. inputs table also |
| * has sub device name for the each input |
| */ |
| static int vpif_input_to_subdev( |
| struct vpif_capture_config *vpif_cfg, |
| struct vpif_capture_chan_config *chan_cfg, |
| int input_index) |
| { |
| struct vpif_subdev_info *subdev_info; |
| const char *subdev_name; |
| int i; |
| |
| vpif_dbg(2, debug, "vpif_input_to_subdev\n"); |
| |
| if (!chan_cfg) |
| return -1; |
| if (input_index >= chan_cfg->input_count) |
| return -1; |
| subdev_name = chan_cfg->inputs[input_index].subdev_name; |
| if (!subdev_name) |
| return -1; |
| |
| /* loop through the sub device list to get the sub device info */ |
| for (i = 0; i < vpif_cfg->subdev_count; i++) { |
| subdev_info = &vpif_cfg->subdev_info[i]; |
| if (subdev_info && !strcmp(subdev_info->name, subdev_name)) |
| return i; |
| } |
| return -1; |
| } |
| |
| /** |
| * vpif_set_input() - Select an input |
| * @vpif_cfg - global config ptr |
| * @ch - channel |
| * @_index - Given input index from application |
| * |
| * Select the given input. |
| */ |
| static int vpif_set_input( |
| struct vpif_capture_config *vpif_cfg, |
| struct channel_obj *ch, |
| int index) |
| { |
| struct vpif_capture_chan_config *chan_cfg = |
| &vpif_cfg->chan_config[ch->channel_id]; |
| struct vpif_subdev_info *subdev_info = NULL; |
| struct v4l2_subdev *sd = NULL; |
| u32 input = 0, output = 0; |
| int sd_index; |
| int ret; |
| |
| sd_index = vpif_input_to_subdev(vpif_cfg, chan_cfg, index); |
| if (sd_index >= 0) { |
| sd = vpif_obj.sd[sd_index]; |
| subdev_info = &vpif_cfg->subdev_info[sd_index]; |
| } else { |
| /* no subdevice, no input to setup */ |
| return 0; |
| } |
| |
| /* first setup input path from sub device to vpif */ |
| if (sd && vpif_cfg->setup_input_path) { |
| ret = vpif_cfg->setup_input_path(ch->channel_id, |
| subdev_info->name); |
| if (ret < 0) { |
| vpif_dbg(1, debug, "couldn't setup input path for the" \ |
| " sub device %s, for input index %d\n", |
| subdev_info->name, index); |
| return ret; |
| } |
| } |
| |
| if (sd) { |
| input = chan_cfg->inputs[index].input_route; |
| output = chan_cfg->inputs[index].output_route; |
| ret = v4l2_subdev_call(sd, video, s_routing, |
| input, output, 0); |
| if (ret < 0 && ret != -ENOIOCTLCMD) { |
| vpif_dbg(1, debug, "Failed to set input\n"); |
| return ret; |
| } |
| } |
| ch->input_idx = index; |
| ch->sd = sd; |
| /* copy interface parameters to vpif */ |
| ch->vpifparams.iface = chan_cfg->vpif_if; |
| |
| /* update tvnorms from the sub device input info */ |
| ch->video_dev.tvnorms = chan_cfg->inputs[index].input.std; |
| return 0; |
| } |
| |
| /** |
| * vpif_querystd() - querystd handler |
| * @file: file ptr |
| * @priv: file handle |
| * @std_id: ptr to std id |
| * |
| * This function is called to detect standard at the selected input |
| */ |
| static int vpif_querystd(struct file *file, void *priv, v4l2_std_id *std_id) |
| { |
| struct video_device *vdev = video_devdata(file); |
| struct channel_obj *ch = video_get_drvdata(vdev); |
| int ret; |
| |
| vpif_dbg(2, debug, "vpif_querystd\n"); |
| |
| /* Call querystd function of decoder device */ |
| ret = v4l2_subdev_call(ch->sd, video, querystd, std_id); |
| |
| if (ret == -ENOIOCTLCMD || ret == -ENODEV) |
| return -ENODATA; |
| if (ret) { |
| vpif_dbg(1, debug, "Failed to query standard for sub devices\n"); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * vpif_g_std() - get STD handler |
| * @file: file ptr |
| * @priv: file handle |
| * @std_id: ptr to std id |
| */ |
| static int vpif_g_std(struct file *file, void *priv, v4l2_std_id *std) |
| { |
| 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) |
| 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; |
| } |
| |
| /** |
| * vpif_s_std() - set STD handler |
| * @file: file ptr |
| * @priv: file handle |
| * @std_id: ptr to std id |
| */ |
| static int vpif_s_std(struct file *file, void *priv, v4l2_std_id std_id) |
| { |
| 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]; |
| struct vpif_capture_chan_config *chan_cfg; |
| struct v4l2_input input; |
| int ret; |
| |
| vpif_dbg(2, debug, "vpif_s_std\n"); |
| |
| if (!config->chan_config[ch->channel_id].inputs) |
| 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; |
| |
| if (vb2_is_busy(&common->buffer_queue)) |
| return -EBUSY; |
| |
| /* Call encoder subdevice function to set the standard */ |
| ch->video.stdid = std_id; |
| memset(&ch->video.dv_timings, 0, sizeof(ch->video.dv_timings)); |
| |
| /* Get the information about the standard */ |
| if (vpif_update_std_info(ch)) { |
| vpif_err("Error getting the standard info\n"); |
| return -EINVAL; |
| } |
| |
| /* set standard in the sub device */ |
| 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; |
| } |
| return 0; |
| } |
| |
| /** |
| * vpif_enum_input() - ENUMINPUT handler |
| * @file: file ptr |
| * @priv: file handle |
| * @input: ptr to input structure |
| */ |
| static int vpif_enum_input(struct file *file, void *priv, |
| struct v4l2_input *input) |
| { |
| |
| 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; |
| |
| chan_cfg = &config->chan_config[ch->channel_id]; |
| |
| if (input->index >= chan_cfg->input_count) |
| return -EINVAL; |
| |
| memcpy(input, &chan_cfg->inputs[input->index].input, |
| sizeof(*input)); |
| return 0; |
| } |
| |
| /** |
| * vpif_g_input() - Get INPUT handler |
| * @file: file ptr |
| * @priv: file handle |
| * @index: ptr to input index |
| */ |
| static int vpif_g_input(struct file *file, void *priv, unsigned int *index) |
| { |
| struct video_device *vdev = video_devdata(file); |
| struct channel_obj *ch = video_get_drvdata(vdev); |
| |
| *index = ch->input_idx; |
| return 0; |
| } |
| |
| /** |
| * vpif_s_input() - Set INPUT handler |
| * @file: file ptr |
| * @priv: file handle |
| * @index: input index |
| */ |
| static int vpif_s_input(struct file *file, void *priv, unsigned int index) |
| { |
| 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]; |
| struct vpif_capture_chan_config *chan_cfg; |
| |
| chan_cfg = &config->chan_config[ch->channel_id]; |
| |
| if (index >= chan_cfg->input_count) |
| return -EINVAL; |
| |
| if (vb2_is_busy(&common->buffer_queue)) |
| return -EBUSY; |
| |
| return vpif_set_input(config, ch, index); |
| } |
| |
| /** |
| * vpif_enum_fmt_vid_cap() - ENUM_FMT handler |
| * @file: file ptr |
| * @priv: file handle |
| * @index: input index |
| */ |
| static int vpif_enum_fmt_vid_cap(struct file *file, void *priv, |
| struct v4l2_fmtdesc *fmt) |
| { |
| 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"); |
| return -EINVAL; |
| } |
| |
| /* Fill in the information about format */ |
| if (ch->vpifparams.iface.if_type == VPIF_IF_RAW_BAYER) { |
| fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| strcpy(fmt->description, "Raw Mode -Bayer Pattern GrRBGb"); |
| fmt->pixelformat = V4L2_PIX_FMT_SBGGR8; |
| } else { |
| fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| strcpy(fmt->description, "YCbCr4:2:2 Semi-Planar"); |
| fmt->pixelformat = V4L2_PIX_FMT_NV16; |
| } |
| return 0; |
| } |
| |
| /** |
| * vpif_try_fmt_vid_cap() - TRY_FMT handler |
| * @file: file ptr |
| * @priv: file handle |
| * @fmt: ptr to v4l2 format structure |
| */ |
| static int vpif_try_fmt_vid_cap(struct file *file, void *priv, |
| struct v4l2_format *fmt) |
| { |
| struct video_device *vdev = video_devdata(file); |
| struct channel_obj *ch = video_get_drvdata(vdev); |
| struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; |
| struct common_obj *common = &(ch->common[VPIF_VIDEO_INDEX]); |
| |
| common->fmt = *fmt; |
| vpif_update_std_info(ch); |
| |
| pixfmt->field = common->fmt.fmt.pix.field; |
| pixfmt->colorspace = common->fmt.fmt.pix.colorspace; |
| pixfmt->bytesperline = common->fmt.fmt.pix.width; |
| pixfmt->width = common->fmt.fmt.pix.width; |
| pixfmt->height = common->fmt.fmt.pix.height; |
| pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height * 2; |
| if (pixfmt->pixelformat == V4L2_PIX_FMT_SGRBG10) { |
| pixfmt->bytesperline = common->fmt.fmt.pix.width * 2; |
| pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height; |
| } |
| pixfmt->priv = 0; |
| |
| dev_dbg(vpif_dev, "%s: %d x %d; pitch=%d pixelformat=0x%08x, field=%d, size=%d\n", __func__, |
| pixfmt->width, pixfmt->height, |
| pixfmt->bytesperline, pixfmt->pixelformat, |
| pixfmt->field, pixfmt->sizeimage); |
| |
| return 0; |
| } |
| |
| |
| /** |
| * vpif_g_fmt_vid_cap() - Set INPUT handler |
| * @file: file ptr |
| * @priv: file handle |
| * @fmt: ptr to v4l2 format structure |
| */ |
| static int vpif_g_fmt_vid_cap(struct file *file, void *priv, |
| struct v4l2_format *fmt) |
| { |
| 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 *pix_fmt = &fmt->fmt.pix; |
| struct v4l2_subdev_format format = { |
| .which = V4L2_SUBDEV_FORMAT_ACTIVE, |
| }; |
| struct v4l2_mbus_framefmt *mbus_fmt = &format.format; |
| int ret; |
| |
| /* Check the validity of the buffer type */ |
| if (common->fmt.type != fmt->type) |
| return -EINVAL; |
| |
| /* By default, use currently set fmt */ |
| *fmt = common->fmt; |
| |
| /* If subdev has get_fmt, use that to override */ |
| ret = v4l2_subdev_call(ch->sd, pad, get_fmt, NULL, &format); |
| if (!ret && mbus_fmt->code) { |
| v4l2_fill_pix_format(pix_fmt, mbus_fmt); |
| pix_fmt->bytesperline = pix_fmt->width; |
| if (mbus_fmt->code == MEDIA_BUS_FMT_SGRBG10_1X10) { |
| /* e.g. mt9v032 */ |
| pix_fmt->pixelformat = V4L2_PIX_FMT_SGRBG10; |
| pix_fmt->bytesperline = pix_fmt->width * 2; |
| } else if (mbus_fmt->code == MEDIA_BUS_FMT_UYVY8_2X8) { |
| /* e.g. tvp514x */ |
| pix_fmt->pixelformat = V4L2_PIX_FMT_NV16; |
| pix_fmt->bytesperline = pix_fmt->width * 2; |
| } else { |
| dev_warn(vpif_dev, "%s: Unhandled media-bus format 0x%x\n", |
| __func__, mbus_fmt->code); |
| } |
| pix_fmt->sizeimage = pix_fmt->bytesperline * pix_fmt->height; |
| dev_dbg(vpif_dev, "%s: %d x %d; pitch=%d, pixelformat=0x%08x, code=0x%x, field=%d, size=%d\n", __func__, |
| pix_fmt->width, pix_fmt->height, |
| pix_fmt->bytesperline, pix_fmt->pixelformat, |
| mbus_fmt->code, pix_fmt->field, pix_fmt->sizeimage); |
| |
| common->fmt = *fmt; |
| vpif_update_std_info(ch); |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * vpif_s_fmt_vid_cap() - Set FMT handler |
| * @file: file ptr |
| * @priv: file handle |
| * @fmt: ptr to v4l2 format structure |
| */ |
| static int vpif_s_fmt_vid_cap(struct file *file, void *priv, |
| struct v4l2_format *fmt) |
| { |
| 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; |
| |
| vpif_dbg(2, debug, "%s\n", __func__); |
| |
| if (vb2_is_busy(&common->buffer_queue)) |
| return -EBUSY; |
| |
| ret = vpif_try_fmt_vid_cap(file, priv, fmt); |
| if (ret) |
| return ret; |
| |
| /* store the format in the channel object */ |
| common->fmt = *fmt; |
| return 0; |
| } |
| |
| /** |
| * vpif_querycap() - QUERYCAP handler |
| * @file: file ptr |
| * @priv: file handle |
| * @cap: ptr to v4l2_capability structure |
| */ |
| static int vpif_querycap(struct file *file, void *priv, |
| struct v4l2_capability *cap) |
| { |
| struct vpif_capture_config *config = vpif_dev->platform_data; |
| |
| cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; |
| cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; |
| 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)); |
| |
| return 0; |
| } |
| |
| /** |
| * vpif_enum_dv_timings() - ENUM_DV_TIMINGS handler |
| * @file: file ptr |
| * @priv: file handle |
| * @timings: input timings |
| */ |
| static int |
| vpif_enum_dv_timings(struct file *file, void *priv, |
| struct v4l2_enum_dv_timings *timings) |
| { |
| 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) |
| 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; |
| } |
| |
| /** |
| * vpif_query_dv_timings() - QUERY_DV_TIMINGS handler |
| * @file: file ptr |
| * @priv: file handle |
| * @timings: input timings |
| */ |
| static int |
| vpif_query_dv_timings(struct file *file, void *priv, |
| struct v4l2_dv_timings *timings) |
| { |
| 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) |
| 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; |
| } |
| |
| /** |
| * vpif_s_dv_timings() - S_DV_TIMINGS handler |
| * @file: file ptr |
| * @priv: file handle |
| * @timings: digital video timings |
| */ |
| static int vpif_s_dv_timings(struct file *file, void *priv, |
| struct v4l2_dv_timings *timings) |
| { |
| 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) |
| 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) |
| ret = 0; |
| if (ret < 0) { |
| vpif_dbg(2, debug, "Error setting custom DV timings\n"); |
| return ret; |
| } |
| |
| if (!(timings->bt.width && timings->bt.height && |
| (timings->bt.hbackporch || |
| timings->bt.hfrontporch || |
| timings->bt.hsync) && |
| timings->bt.vfrontporch && |
| (timings->bt.vbackporch || |
| timings->bt.vsync))) { |
| vpif_dbg(2, debug, "Timings for width, height, horizontal back porch, horizontal sync, horizontal front porch, vertical back porch, vertical sync and vertical back porch must be defined\n"); |
| return -EINVAL; |
| } |
| |
| vid_ch->dv_timings = *timings; |
| |
| /* Configure video port timings */ |
| |
| 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->l5 = std_info->vsize/2 - |
| (bt->vfrontporch - 1); |
| std_info->l7 = std_info->vsize/2 + 1; |
| std_info->l9 = std_info->l7 + bt->il_vsync + |
| bt->il_vbackporch + 1; |
| std_info->l11 = std_info->vsize - |
| (bt->il_vfrontporch - 1); |
| } else { |
| vpif_dbg(2, debug, "Required timing values for interlaced BT format missing\n"); |
| return -EINVAL; |
| } |
| } else { |
| std_info->l5 = std_info->vsize - (bt->vfrontporch - 1); |
| } |
| strncpy(std_info->name, "Custom timings BT656/1120", VPIF_MAX_NAME); |
| std_info->width = bt->width; |
| std_info->height = bt->height; |
| std_info->frm_fmt = bt->interlaced ? 0 : 1; |
| std_info->ycmux_mode = 0; |
| std_info->capture_format = 0; |
| std_info->vbi_supported = 0; |
| std_info->hd_sd = 1; |
| std_info->stdid = 0; |
| |
| vid_ch->stdid = 0; |
| return 0; |
| } |
| |
| /** |
| * vpif_g_dv_timings() - G_DV_TIMINGS handler |
| * @file: file ptr |
| * @priv: file handle |
| * @timings: digital video timings |
| */ |
| static int vpif_g_dv_timings(struct file *file, void *priv, |
| struct v4l2_dv_timings *timings) |
| { |
| 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; |
| |
| if (!config->chan_config[ch->channel_id].inputs) |
| 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 = vid_ch->dv_timings; |
| |
| return 0; |
| } |
| |
| /* |
| * vpif_log_status() - Status information |
| * @file: file ptr |
| * @priv: file handle |
| * |
| * Returns zero. |
| */ |
| static int vpif_log_status(struct file *filep, void *priv) |
| { |
| /* status for sub devices */ |
| v4l2_device_call_all(&vpif_obj.v4l2_dev, 0, core, log_status); |
| |
| return 0; |
| } |
| |
| /* vpif capture ioctl operations */ |
| static const struct v4l2_ioctl_ops vpif_ioctl_ops = { |
| .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_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 = 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_g_std = vpif_g_std, |
| |
| .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 const struct v4l2_file_operations vpif_fops = { |
| .owner = THIS_MODULE, |
| .open = v4l2_fh_open, |
| .release = vb2_fop_release, |
| .unlocked_ioctl = video_ioctl2, |
| .mmap = vb2_fop_mmap, |
| .poll = vb2_fop_poll |
| }; |
| |
| /** |
| * initialize_vpif() - Initialize vpif data structures |
| * |
| * Allocate memory for data structures and initialize them |
| */ |
| static int initialize_vpif(void) |
| { |
| int err, i, j; |
| int free_channel_objects_index; |
| |
| /* Allocate memory for six channel objects */ |
| for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { |
| vpif_obj.dev[i] = |
| kzalloc(sizeof(*vpif_obj.dev[i]), GFP_KERNEL); |
| /* If memory allocation fails, return error */ |
| if (!vpif_obj.dev[i]) { |
| free_channel_objects_index = i; |
| err = -ENOMEM; |
| goto vpif_init_free_channel_objects; |
| } |
| } |
| return 0; |
| |
| vpif_init_free_channel_objects: |
| for (j = 0; j < free_channel_objects_index; j++) |
| kfree(vpif_obj.dev[j]); |
| 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->asd_sizes[0]; i++) { |
| struct v4l2_async_subdev *_asd = vpif_obj.config->asd[i]; |
| const struct fwnode_handle *fwnode = _asd->match.fwnode.fwnode; |
| |
| if (fwnode == subdev->fwnode) { |
| vpif_obj.sd[i] = subdev; |
| vpif_obj.config->chan_config->inputs[i].subdev_name = |
| (char *)to_of_node(subdev->fwnode)->full_name; |
| vpif_dbg(2, debug, |
| "%s: setting input %d subdev_name = %s\n", |
| __func__, i, |
| vpif_obj.config->chan_config->inputs[i].subdev_name); |
| return 0; |
| } |
| } |
| |
| 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 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; |
| |
| /* set initial format */ |
| ch->video.stdid = V4L2_STD_525_60; |
| memset(&ch->video.dv_timings, 0, sizeof(ch->video.dv_timings)); |
| common->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| vpif_update_std_info(ch); |
| |
| /* 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; |
| q->dev = vpif_dev; |
| |
| err = vb2_queue_init(q); |
| if (err) { |
| vpif_err("vpif_capture: vb2_queue_init() failed\n"); |
| 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_empty; |
| 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; |
| 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]; |
| /* Unregister video device */ |
| video_unregister_device(&ch->video_dev); |
| } |
| kfree(vpif_obj.sd); |
| v4l2_device_unregister(&vpif_obj.v4l2_dev); |
| |
| return err; |
| } |
| |
| static int vpif_async_complete(struct v4l2_async_notifier *notifier) |
| { |
| return vpif_probe_complete(); |
| } |
| |
| static struct vpif_capture_config * |
| vpif_capture_get_pdata(struct platform_device *pdev) |
| { |
| struct device_node *endpoint = NULL; |
| struct v4l2_fwnode_endpoint bus_cfg; |
| struct vpif_capture_config *pdata; |
| struct vpif_subdev_info *sdinfo; |
| struct vpif_capture_chan_config *chan; |
| unsigned int i; |
| |
| /* |
| * DT boot: OF node from parent device contains |
| * video ports & endpoints data. |
| */ |
| if (pdev->dev.parent && pdev->dev.parent->of_node) |
| pdev->dev.of_node = pdev->dev.parent->of_node; |
| if (!IS_ENABLED(CONFIG_OF) || !pdev->dev.of_node) |
| return pdev->dev.platform_data; |
| |
| pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); |
| if (!pdata) |
| return NULL; |
| pdata->subdev_info = |
| devm_kzalloc(&pdev->dev, sizeof(*pdata->subdev_info) * |
| VPIF_CAPTURE_NUM_CHANNELS, GFP_KERNEL); |
| |
| if (!pdata->subdev_info) |
| return NULL; |
| |
| for (i = 0; i < VPIF_CAPTURE_NUM_CHANNELS; i++) { |
| struct device_node *rem; |
| unsigned int flags; |
| int err; |
| |
| endpoint = of_graph_get_next_endpoint(pdev->dev.of_node, |
| endpoint); |
| if (!endpoint) |
| break; |
| |
| sdinfo = &pdata->subdev_info[i]; |
| chan = &pdata->chan_config[i]; |
| chan->inputs = devm_kzalloc(&pdev->dev, |
| sizeof(*chan->inputs) * |
| VPIF_CAPTURE_NUM_CHANNELS, |
| GFP_KERNEL); |
| if (!chan->inputs) |
| return NULL; |
| |
| chan->input_count++; |
| chan->inputs[i].input.type = V4L2_INPUT_TYPE_CAMERA; |
| chan->inputs[i].input.std = V4L2_STD_ALL; |
| chan->inputs[i].input.capabilities = V4L2_IN_CAP_STD; |
| |
| err = v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint), |
| &bus_cfg); |
| if (err) { |
| dev_err(&pdev->dev, "Could not parse the endpoint\n"); |
| goto done; |
| } |
| dev_dbg(&pdev->dev, "Endpoint %pOF, bus_width = %d\n", |
| endpoint, bus_cfg.bus.parallel.bus_width); |
| flags = bus_cfg.bus.parallel.flags; |
| |
| if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH) |
| chan->vpif_if.hd_pol = 1; |
| |
| if (flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH) |
| chan->vpif_if.vd_pol = 1; |
| |
| rem = of_graph_get_remote_port_parent(endpoint); |
| if (!rem) { |
| dev_dbg(&pdev->dev, "Remote device at %pOF not found\n", |
| endpoint); |
| goto done; |
| } |
| |
| dev_dbg(&pdev->dev, "Remote device %s, %pOF found\n", |
| rem->name, rem); |
| sdinfo->name = rem->full_name; |
| |
| pdata->asd[i] = devm_kzalloc(&pdev->dev, |
| sizeof(struct v4l2_async_subdev), |
| GFP_KERNEL); |
| if (!pdata->asd[i]) { |
| of_node_put(rem); |
| pdata = NULL; |
| goto done; |
| } |
| |
| pdata->asd[i]->match_type = V4L2_ASYNC_MATCH_FWNODE; |
| pdata->asd[i]->match.fwnode.fwnode = of_fwnode_handle(rem); |
| of_node_put(rem); |
| } |
| |
| done: |
| if (pdata) { |
| pdata->asd_sizes[0] = i; |
| pdata->subdev_count = i; |
| pdata->card_name = "DA850/OMAP-L138 Video Capture"; |
| } |
| |
| return pdata; |
| } |
| |
| /** |
| * vpif_probe : This function probes the vpif capture driver |
| * @pdev: platform device pointer |
| * |
| * This creates device entries by register itself to the V4L2 driver and |
| * initializes fields of each channel objects |
| */ |
| static __init int vpif_probe(struct platform_device *pdev) |
| { |
| struct vpif_subdev_info *subdevdata; |
| struct i2c_adapter *i2c_adap; |
| struct resource *res; |
| int subdev_count; |
| int res_idx = 0; |
| int i, err; |
| |
| pdev->dev.platform_data = vpif_capture_get_pdata(pdev); |
| if (!pdev->dev.platform_data) { |
| dev_warn(&pdev->dev, "Missing platform data. Giving up.\n"); |
| return -EINVAL; |
| } |
| |
| if (!pdev->dev.platform_data) { |
| dev_warn(&pdev->dev, "Missing platform data. Giving up.\n"); |
| return -EINVAL; |
| } |
| |
| vpif_dev = &pdev->dev; |
| |
| err = initialize_vpif(); |
| if (err) { |
| v4l2_err(vpif_dev->driver, "Error initializing vpif\n"); |
| return err; |
| } |
| |
| err = v4l2_device_register(vpif_dev, &vpif_obj.v4l2_dev); |
| if (err) { |
| v4l2_err(vpif_dev->driver, "Error registering v4l2 device\n"); |
| return err; |
| } |
| |
| while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, res_idx))) { |
| 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++; |
| } |
| |
| vpif_obj.config = pdev->dev.platform_data; |
| |
| subdev_count = vpif_obj.config->subdev_count; |
| vpif_obj.sd = kcalloc(subdev_count, sizeof(*vpif_obj.sd), GFP_KERNEL); |
| if (!vpif_obj.sd) { |
| err = -ENOMEM; |
| goto vpif_unregister; |
| } |
| |
| if (!vpif_obj.config->asd_sizes[0]) { |
| int i2c_id = vpif_obj.config->i2c_adapter_id; |
| |
| i2c_adap = i2c_get_adapter(i2c_id); |
| WARN_ON(!i2c_adap); |
| 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; |
| } |
| } |
| |
| return 0; |
| |
| probe_subdev_out: |
| /* free sub devices memory */ |
| kfree(vpif_obj.sd); |
| vpif_unregister: |
| v4l2_device_unregister(&vpif_obj.v4l2_dev); |
| |
| return err; |
| } |
| |
| /** |
| * vpif_remove() - driver remove handler |
| * @device: ptr to platform device structure |
| * |
| * The vidoe device is unregistered |
| */ |
| static int vpif_remove(struct platform_device *device) |
| { |
| 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]; |
| /* Unregister video device */ |
| video_unregister_device(&ch->video_dev); |
| kfree(vpif_obj.dev[i]); |
| } |
| return 0; |
| } |
| |
| #ifdef CONFIG_PM_SLEEP |
| /** |
| * vpif_suspend: vpif device suspend |
| */ |
| static int vpif_suspend(struct device *dev) |
| { |
| |
| struct common_obj *common; |
| struct channel_obj *ch; |
| int i; |
| |
| for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { |
| /* Get the pointer to the channel object */ |
| ch = vpif_obj.dev[i]; |
| common = &ch->common[VPIF_VIDEO_INDEX]; |
| |
| if (!vb2_start_streaming_called(&common->buffer_queue)) |
| continue; |
| |
| mutex_lock(&common->lock); |
| /* 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); |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * vpif_resume: vpif device suspend |
| */ |
| static int vpif_resume(struct device *dev) |
| { |
| struct common_obj *common; |
| struct channel_obj *ch; |
| int i; |
| |
| for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { |
| /* Get the pointer to the channel object */ |
| ch = vpif_obj.dev[i]; |
| common = &ch->common[VPIF_VIDEO_INDEX]; |
| |
| if (!vb2_start_streaming_called(&common->buffer_queue)) |
| continue; |
| |
| mutex_lock(&common->lock); |
| /* 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; |
| } |
| #endif |
| |
| static SIMPLE_DEV_PM_OPS(vpif_pm_ops, vpif_suspend, vpif_resume); |
| |
| static __refdata struct platform_driver vpif_driver = { |
| .driver = { |
| .name = VPIF_DRIVER_NAME, |
| .pm = &vpif_pm_ops, |
| }, |
| .probe = vpif_probe, |
| .remove = vpif_remove, |
| }; |
| |
| module_platform_driver(vpif_driver); |