diff options
author | Mauro Carvalho Chehab <mchehab@kernel.org> | 2022-03-13 11:18:19 +0100 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2022-03-18 05:58:34 +0100 |
commit | d24a170bde6543fa2879d3c422b7874716cdf038 (patch) | |
tree | fc1b38164eef74934785f04a0ca0df6b5d77c60e /drivers/media/platform/davinci/vpif_capture.c | |
parent | 407965e2348e6875e113c985331bdc125d58bdbb (diff) | |
download | linux-d24a170bde6543fa2879d3c422b7874716cdf038.tar.bz2 |
media: platform: rename davinci/ to ti/davinci/
As the end goal is to have platform drivers split by vendor,
rename davinci/ to ti/davinci/.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/media/platform/davinci/vpif_capture.c')
-rw-r--r-- | drivers/media/platform/davinci/vpif_capture.c | 1823 |
1 files changed, 0 insertions, 1823 deletions
diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c deleted file mode 100644 index bf76c5c83743..000000000000 --- a/drivers/media/platform/davinci/vpif_capture.c +++ /dev/null @@ -1,1823 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Copyright (C) 2009 Texas Instruments Inc - * Copyright (C) 2014 Lad, Prabhakar <prabhakar.csengg@gmail.com> - * - * 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 - * @vq: 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_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: 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 - * @fmt: ptr to V4L2 format descriptor - */ -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->pixelformat = V4L2_PIX_FMT_SBGGR8; - else - 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; - } - - 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; - - strscpy(cap->driver, VPIF_DRIVER_NAME, sizeof(cap->driver)); - snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s", - dev_name(vpif_dev)); - strscpy(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); - } - strscpy(std_info->name, "Custom timings BT656/1120", - sizeof(std_info->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 inline void free_vpif_objs(void) -{ - int i; - - for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) - kfree(vpif_obj.dev[i]); -} - -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; - - 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; - strscpy(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; - vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; - video_set_drvdata(&ch->video_dev, ch); - err = video_register_device(vdev, - VFL_TYPE_VIDEO, (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); - } - - return err; -} - -static int vpif_async_complete(struct v4l2_async_notifier *notifier) -{ - return vpif_probe_complete(); -} - -static const struct v4l2_async_notifier_operations vpif_async_ops = { - .bound = vpif_async_bound, - .complete = vpif_async_complete, -}; - -static struct vpif_capture_config * -vpif_capture_get_pdata(struct platform_device *pdev) -{ - struct device_node *endpoint = NULL; - struct device_node *rem = NULL; - struct vpif_capture_config *pdata; - struct vpif_subdev_info *sdinfo; - struct vpif_capture_chan_config *chan; - unsigned int i; - - v4l2_async_nf_init(&vpif_obj.notifier); - - /* - * 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_kcalloc(&pdev->dev, - VPIF_CAPTURE_NUM_CHANNELS, - sizeof(*pdata->subdev_info), - GFP_KERNEL); - - if (!pdata->subdev_info) - return NULL; - - for (i = 0; i < VPIF_CAPTURE_NUM_CHANNELS; i++) { - struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 }; - unsigned int flags; - int err; - - endpoint = of_graph_get_next_endpoint(pdev->dev.of_node, - endpoint); - if (!endpoint) - break; - - rem = of_graph_get_remote_port_parent(endpoint); - if (!rem) { - dev_dbg(&pdev->dev, "Remote device at %pOF not found\n", - endpoint); - goto done; - } - - sdinfo = &pdata->subdev_info[i]; - chan = &pdata->chan_config[i]; - chan->inputs = devm_kcalloc(&pdev->dev, - VPIF_CAPTURE_NUM_CHANNELS, - sizeof(*chan->inputs), - GFP_KERNEL); - if (!chan->inputs) - goto err_cleanup; - - 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"); - of_node_put(rem); - 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; - - dev_dbg(&pdev->dev, "Remote device %pOF found\n", rem); - sdinfo->name = rem->full_name; - - pdata->asd[i] = v4l2_async_nf_add_fwnode(&vpif_obj.notifier, - of_fwnode_handle(rem), - struct - v4l2_async_subdev); - if (IS_ERR(pdata->asd[i])) - goto err_cleanup; - - of_node_put(rem); - } - -done: - of_node_put(endpoint); - pdata->asd_sizes[0] = i; - pdata->subdev_count = i; - pdata->card_name = "DA850/OMAP-L138 Video Capture"; - - return pdata; - -err_cleanup: - of_node_put(rem); - of_node_put(endpoint); - v4l2_async_nf_cleanup(&vpif_obj.notifier); - - return NULL; -} - -/** - * 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; - 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; - } - - vpif_dev = &pdev->dev; - - err = initialize_vpif(); - if (err) { - v4l2_err(vpif_dev->driver, "Error initializing vpif\n"); - goto cleanup; - } - - err = v4l2_device_register(vpif_dev, &vpif_obj.v4l2_dev); - if (err) { - v4l2_err(vpif_dev->driver, "Error registering v4l2 device\n"); - goto vpif_free; - } - - do { - int irq; - - err = platform_get_irq_optional(pdev, res_idx); - if (err < 0 && err != -ENXIO) - goto vpif_unregister; - if (err > 0) - irq = err; - else - break; - - err = devm_request_irq(&pdev->dev, irq, vpif_channel_isr, - IRQF_SHARED, VPIF_DRIVER_NAME, - (void *)(&vpif_obj.dev[res_idx]->channel_id)); - if (err) - goto vpif_unregister; - } while (++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); - } - err = vpif_probe_complete(); - if (err) - goto probe_subdev_out; - } else { - vpif_obj.notifier.ops = &vpif_async_ops; - err = v4l2_async_nf_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); -vpif_free: - free_vpif_objs(); -cleanup: - v4l2_async_nf_cleanup(&vpif_obj.notifier); - - 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_async_nf_unregister(&vpif_obj.notifier); - v4l2_async_nf_cleanup(&vpif_obj.notifier); - 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 - * @dev: pointer to &struct device - */ -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); |