+++ /dev/null
-/*
- * vpif-display - VPIF display driver
- * Display driver for TI DaVinci VPIF
- *
- * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.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 version 2.
- *
- * This program is distributed .as is. WITHOUT ANY WARRANTY of any
- * kind, whether express or implied; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/mm.h>
-#include <linux/interrupt.h>
-#include <linux/workqueue.h>
-#include <linux/string.h>
-#include <linux/videodev2.h>
-#include <linux/wait.h>
-#include <linux/time.h>
-#include <linux/i2c.h>
-#include <linux/platform_device.h>
-#include <linux/io.h>
-#include <linux/slab.h>
-
-#include <asm/irq.h>
-#include <asm/page.h>
-
-#include <media/adv7343.h>
-#include <media/v4l2-device.h>
-#include <media/v4l2-ioctl.h>
-#include <media/v4l2-chip-ident.h>
-
-#include "vpif_display.h"
-#include "vpif.h"
-
-MODULE_DESCRIPTION("TI DaVinci VPIF Display driver");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(VPIF_DISPLAY_VERSION);
-
-#define VPIF_V4L2_STD (V4L2_STD_525_60 | V4L2_STD_625_50)
-
-#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;
-static u32 ch2_numbuffers = 3;
-static u32 ch3_numbuffers = 3;
-static u32 ch2_bufsize = 1920 * 1080 * 2;
-static u32 ch3_bufsize = 720 * 576 * 2;
-
-module_param(debug, int, 0644);
-module_param(ch2_numbuffers, uint, S_IRUGO);
-module_param(ch3_numbuffers, uint, S_IRUGO);
-module_param(ch2_bufsize, uint, S_IRUGO);
-module_param(ch3_bufsize, uint, S_IRUGO);
-
-MODULE_PARM_DESC(debug, "Debug level 0-1");
-MODULE_PARM_DESC(ch2_numbuffers, "Channel2 buffer count (default:3)");
-MODULE_PARM_DESC(ch3_numbuffers, "Channel3 buffer count (default:3)");
-MODULE_PARM_DESC(ch2_bufsize, "Channel2 buffer size (default:1920 x 1080 x 2)");
-MODULE_PARM_DESC(ch3_bufsize, "Channel3 buffer size (default:720 x 576 x 2)");
-
-static struct vpif_config_params config_params = {
- .min_numbuffers = 3,
- .numbuffers[0] = 3,
- .numbuffers[1] = 3,
- .min_bufsize[0] = 720 * 480 * 2,
- .min_bufsize[1] = 720 * 480 * 2,
- .channel_bufsize[0] = 1920 * 1080 * 2,
- .channel_bufsize[1] = 720 * 576 * 2,
-};
-
-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);
-
-/*
- * buffer_prepare: This is the callback function called from vb2_qbuf()
- * function the buffer is prepared and user space virtual address is converted
- * into physical address
- */
-static int vpif_buffer_prepare(struct vb2_buffer *vb)
-{
- struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue);
- struct vb2_queue *q = vb->vb2_queue;
- struct common_obj *common;
- unsigned long addr;
-
- common = &fh->channel->common[VPIF_VIDEO_INDEX];
- if (vb->state != VB2_BUF_STATE_ACTIVE &&
- vb->state != VB2_BUF_STATE_PREPARED) {
- vb2_set_plane_payload(vb, 0, common->fmt.fmt.pix.sizeimage);
- if (vb2_plane_vaddr(vb, 0) &&
- vb2_get_plane_payload(vb, 0) > vb2_plane_size(vb, 0))
- goto buf_align_exit;
-
- addr = vb2_dma_contig_plane_dma_addr(vb, 0);
- if (q->streaming &&
- (V4L2_BUF_TYPE_SLICED_VBI_OUTPUT != q->type)) {
- if (!ISALIGNED(addr + common->ytop_off) ||
- !ISALIGNED(addr + common->ybtm_off) ||
- !ISALIGNED(addr + common->ctop_off) ||
- !ISALIGNED(addr + common->cbtm_off))
- goto buf_align_exit;
- }
- }
- return 0;
-
-buf_align_exit:
- vpif_err("buffer offset not aligned to 8 bytes\n");
- return -EINVAL;
-}
-
-/*
- * vpif_buffer_queue_setup: This function allocates memory for the buffers
- */
-static int vpif_buffer_queue_setup(struct vb2_queue *vq,
- const struct v4l2_format *fmt,
- unsigned int *nbuffers, unsigned int *nplanes,
- unsigned int sizes[], void *alloc_ctxs[])
-{
- struct vpif_fh *fh = vb2_get_drv_priv(vq);
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
- unsigned long size;
-
- if (V4L2_MEMORY_MMAP == common->memory) {
- size = config_params.channel_bufsize[ch->channel_id];
- /*
- * Checking if the buffer size exceeds the available buffer
- * ycmux_mode = 0 means 1 channel mode HD and
- * ycmux_mode = 1 means 2 channels mode SD
- */
- if (ch->vpifparams.std_info.ycmux_mode == 0) {
- if (config_params.video_limit[ch->channel_id])
- while (size * *nbuffers >
- (config_params.video_limit[0]
- + config_params.video_limit[1]))
- (*nbuffers)--;
- } else {
- if (config_params.video_limit[ch->channel_id])
- while (size * *nbuffers >
- config_params.video_limit[ch->channel_id])
- (*nbuffers)--;
- }
- } else {
- size = common->fmt.fmt.pix.sizeimage;
- }
-
- if (*nbuffers < config_params.min_numbuffers)
- *nbuffers = config_params.min_numbuffers;
-
- *nplanes = 1;
- sizes[0] = size;
- alloc_ctxs[0] = common->alloc_ctx;
- return 0;
-}
-
-/*
- * vpif_buffer_queue: This function adds the buffer to DMA queue
- */
-static void vpif_buffer_queue(struct vb2_buffer *vb)
-{
- struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue);
- struct vpif_disp_buffer *buf = container_of(vb,
- struct vpif_disp_buffer, vb);
- struct channel_obj *ch = fh->channel;
- struct common_obj *common;
-
- common = &ch->common[VPIF_VIDEO_INDEX];
-
- /* add the buffer to the DMA queue */
- list_add_tail(&buf->list, &common->dma_queue);
-}
-
-/*
- * vpif_buf_cleanup: This function is called from the videobuf2 layer to
- * free memory allocated to the buffers
- */
-static void vpif_buf_cleanup(struct vb2_buffer *vb)
-{
- struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue);
- struct vpif_disp_buffer *buf = container_of(vb,
- struct vpif_disp_buffer, vb);
- struct channel_obj *ch = fh->channel;
- struct common_obj *common;
- unsigned long flags;
-
- common = &ch->common[VPIF_VIDEO_INDEX];
-
- spin_lock_irqsave(&common->irqlock, flags);
- if (vb->state == VB2_BUF_STATE_ACTIVE)
- list_del_init(&buf->list);
- spin_unlock_irqrestore(&common->irqlock, flags);
-}
-
-static void vpif_wait_prepare(struct vb2_queue *vq)
-{
- struct vpif_fh *fh = vb2_get_drv_priv(vq);
- struct channel_obj *ch = fh->channel;
- struct common_obj *common;
-
- common = &ch->common[VPIF_VIDEO_INDEX];
- mutex_unlock(&common->lock);
-}
-
-static void vpif_wait_finish(struct vb2_queue *vq)
-{
- struct vpif_fh *fh = vb2_get_drv_priv(vq);
- struct channel_obj *ch = fh->channel;
- struct common_obj *common;
-
- common = &ch->common[VPIF_VIDEO_INDEX];
- mutex_lock(&common->lock);
-}
-
-static int vpif_buffer_init(struct vb2_buffer *vb)
-{
- struct vpif_disp_buffer *buf = container_of(vb,
- struct vpif_disp_buffer, vb);
-
- INIT_LIST_HEAD(&buf->list);
-
- return 0;
-}
-
-static u8 channel_first_int[VPIF_NUMOBJECTS][2] = { {1, 1} };
-
-static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count)
-{
- struct vpif_display_config *vpif_config_data =
- vpif_dev->platform_data;
- struct vpif_fh *fh = vb2_get_drv_priv(vq);
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
- struct vpif_params *vpif = &ch->vpifparams;
- unsigned long addr = 0;
- int ret;
-
- /* If buffer queue is empty, return error */
- if (list_empty(&common->dma_queue)) {
- vpif_err("buffer queue is empty\n");
- return -EIO;
- }
-
- /* Get the next frame from the buffer queue */
- common->next_frm = common->cur_frm =
- list_entry(common->dma_queue.next,
- struct vpif_disp_buffer, list);
-
- list_del(&common->cur_frm->list);
- /* Mark state of the current frame to active */
- common->cur_frm->vb.state = VB2_BUF_STATE_ACTIVE;
-
- /* Initialize field_id and started member */
- ch->field_id = 0;
- common->started = 1;
- addr = vb2_dma_contig_plane_dma_addr(&common->cur_frm->vb, 0);
- /* Calculate the offset for Y and C data in the buffer */
- vpif_calculate_offsets(ch);
-
- if ((ch->vpifparams.std_info.frm_fmt &&
- ((common->fmt.fmt.pix.field != V4L2_FIELD_NONE)
- && (common->fmt.fmt.pix.field != V4L2_FIELD_ANY)))
- || (!ch->vpifparams.std_info.frm_fmt
- && (common->fmt.fmt.pix.field == V4L2_FIELD_NONE))) {
- vpif_err("conflict in field format and std format\n");
- return -EINVAL;
- }
-
- /* clock settings */
- ret =
- vpif_config_data->set_clock(ch->vpifparams.std_info.ycmux_mode,
- ch->vpifparams.std_info.hd_sd);
- if (ret < 0) {
- vpif_err("can't set clock\n");
- return ret;
- }
-
- /* set the parameters and addresses */
- ret = vpif_set_video_params(vpif, ch->channel_id + 2);
- if (ret < 0)
- return ret;
-
- common->started = ret;
- vpif_config_addr(ch, ret);
- common->set_addr((addr + common->ytop_off),
- (addr + common->ybtm_off),
- (addr + common->ctop_off),
- (addr + common->cbtm_off));
-
- /* Set interrupt for both the fields in VPIF
- Register enable channel in VPIF register */
- if (VPIF_CHANNEL2_VIDEO == ch->channel_id) {
- channel2_intr_assert();
- channel2_intr_enable(1);
- enable_channel2(1);
- if (vpif_config_data->ch2_clip_en)
- channel2_clipping_enable(1);
- }
-
- if ((VPIF_CHANNEL3_VIDEO == ch->channel_id)
- || (common->started == 2)) {
- channel3_intr_assert();
- channel3_intr_enable(1);
- enable_channel3(1);
- if (vpif_config_data->ch3_clip_en)
- channel3_clipping_enable(1);
- }
- channel_first_int[VPIF_VIDEO_INDEX][ch->channel_id] = 1;
-
- return 0;
-}
-
-/* abort streaming and wait for last buffer */
-static int vpif_stop_streaming(struct vb2_queue *vq)
-{
- struct vpif_fh *fh = vb2_get_drv_priv(vq);
- struct channel_obj *ch = fh->channel;
- struct common_obj *common;
-
- if (!vb2_is_streaming(vq))
- return 0;
-
- common = &ch->common[VPIF_VIDEO_INDEX];
-
- /* release all active buffers */
- while (!list_empty(&common->dma_queue)) {
- common->next_frm = list_entry(common->dma_queue.next,
- struct vpif_disp_buffer, list);
- list_del(&common->next_frm->list);
- vb2_buffer_done(&common->next_frm->vb, VB2_BUF_STATE_ERROR);
- }
-
- return 0;
-}
-
-static struct vb2_ops video_qops = {
- .queue_setup = vpif_buffer_queue_setup,
- .wait_prepare = vpif_wait_prepare,
- .wait_finish = vpif_wait_finish,
- .buf_init = vpif_buffer_init,
- .buf_prepare = vpif_buffer_prepare,
- .start_streaming = vpif_start_streaming,
- .stop_streaming = vpif_stop_streaming,
- .buf_cleanup = vpif_buf_cleanup,
- .buf_queue = vpif_buffer_queue,
-};
-
-static void process_progressive_mode(struct common_obj *common)
-{
- unsigned long addr = 0;
-
- /* Get the next buffer from buffer queue */
- common->next_frm = list_entry(common->dma_queue.next,
- struct vpif_disp_buffer, list);
- /* Remove that buffer from the buffer queue */
- list_del(&common->next_frm->list);
- /* Mark status of the buffer as active */
- common->next_frm->vb.state = VB2_BUF_STATE_ACTIVE;
-
- /* Set top and bottom field addrs in VPIF registers */
- addr = vb2_dma_contig_plane_dma_addr(&common->next_frm->vb, 0);
- common->set_addr(addr + common->ytop_off,
- addr + common->ybtm_off,
- addr + common->ctop_off,
- addr + common->cbtm_off);
-}
-
-static void process_interlaced_mode(int fid, struct common_obj *common)
-{
- /* device field id and local field id are in sync */
- /* If this is even field */
- if (0 == fid) {
- if (common->cur_frm == common->next_frm)
- return;
-
- /* one frame is displayed If next frame is
- * available, release cur_frm and move on */
- /* Copy frame display time */
- do_gettimeofday(&common->cur_frm->vb.v4l2_buf.timestamp);
- /* Change status of the cur_frm */
- vb2_buffer_done(&common->cur_frm->vb,
- VB2_BUF_STATE_DONE);
- /* Make cur_frm pointing to next_frm */
- common->cur_frm = common->next_frm;
-
- } else if (1 == fid) { /* odd field */
- if (list_empty(&common->dma_queue)
- || (common->cur_frm != common->next_frm)) {
- return;
- }
- /* one field is displayed configure the next
- * frame if it is available else hold on current
- * frame */
- /* Get next from the buffer queue */
- process_progressive_mode(common);
-
- }
-}
-
-/*
- * vpif_channel_isr: It changes status of the displayed 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 channel_obj *ch;
- struct common_obj *common;
- enum v4l2_field field;
- int fid = -1, i;
- int channel_id = 0;
-
- channel_id = *(int *)(dev_id);
- if (!vpif_intr_status(channel_id + 2))
- return IRQ_NONE;
-
- ch = dev->dev[channel_id];
- field = ch->common[VPIF_VIDEO_INDEX].fmt.fmt.pix.field;
- for (i = 0; i < VPIF_NUMOBJECTS; i++) {
- common = &ch->common[i];
- /* If streaming is started in this channel */
- if (0 == common->started)
- continue;
-
- if (1 == ch->vpifparams.std_info.frm_fmt) {
- if (list_empty(&common->dma_queue))
- continue;
-
- /* Progressive mode */
- if (!channel_first_int[i][channel_id]) {
- /* Mark status of the cur_frm to
- * done and unlock semaphore on it */
- do_gettimeofday(&common->cur_frm->vb.
- v4l2_buf.timestamp);
- vb2_buffer_done(&common->cur_frm->vb,
- VB2_BUF_STATE_DONE);
- /* Make cur_frm pointing to next_frm */
- common->cur_frm = common->next_frm;
- }
-
- channel_first_int[i][channel_id] = 0;
- process_progressive_mode(common);
- } 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 + 2);
- /* If fid does not match with stored field id */
- if (fid != ch->field_id) {
- /* Make them in sync */
- if (0 == fid)
- ch->field_id = fid;
-
- return IRQ_HANDLED;
- }
- }
- process_interlaced_mode(fid, common);
- }
- }
-
- return IRQ_HANDLED;
-}
-
-static int vpif_update_std_info(struct channel_obj *ch)
-{
- struct video_obj *vid_ch = &ch->video;
- struct vpif_params *vpifparams = &ch->vpifparams;
- struct vpif_channel_config_params *std_info = &vpifparams->std_info;
- const struct vpif_channel_config_params *config;
-
- int i;
-
- for (i = 0; i < vpif_ch_params_count; i++) {
- config = &ch_params[i];
- 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 (config->dv_preset == vid_ch->dv_preset) {
- memcpy(std_info, config, sizeof(*config));
- break;
- }
- }
- }
-
- if (i == vpif_ch_params_count) {
- vpif_dbg(1, debug, "Format not found\n");
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int vpif_update_resolution(struct channel_obj *ch)
-{
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
- struct video_obj *vid_ch = &ch->video;
- struct vpif_params *vpifparams = &ch->vpifparams;
- struct vpif_channel_config_params *std_info = &vpifparams->std_info;
-
- if (!vid_ch->stdid && !vid_ch->dv_preset && !vid_ch->bt_timings.height)
- return -EINVAL;
-
- if (vid_ch->stdid || vid_ch->dv_preset) {
- if (vpif_update_std_info(ch))
- return -EINVAL;
- }
-
- common->fmt.fmt.pix.width = std_info->width;
- common->fmt.fmt.pix.height = std_info->height;
- vpif_dbg(1, debug, "Pixel details: Width = %d,Height = %d\n",
- common->fmt.fmt.pix.width, common->fmt.fmt.pix.height);
-
- /* Set height and width paramateres */
- common->height = std_info->height;
- common->width = std_info->width;
-
- return 0;
-}
-
-/*
- * vpif_calculate_offsets: This function calculates buffers offset for Y and C
- * in the top and bottom field
- */
-static void vpif_calculate_offsets(struct channel_obj *ch)
-{
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
- struct vpif_params *vpifparams = &ch->vpifparams;
- enum v4l2_field field = common->fmt.fmt.pix.field;
- struct video_obj *vid_ch = &ch->video;
- unsigned int hpitch, vpitch, sizeimage;
-
- if (V4L2_FIELD_ANY == common->fmt.fmt.pix.field) {
- if (ch->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;
- vpitch = sizeimage / (hpitch * 2);
- if ((V4L2_FIELD_NONE == vid_ch->buf_field) ||
- (V4L2_FIELD_INTERLACED == vid_ch->buf_field)) {
- 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) {
- 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) {
- 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 (ch->vpifparams.std_info.frm_fmt == 1) {
- 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 = ch->vpifparams.std_info.stdid;
-}
-
-static void vpif_config_format(struct channel_obj *ch)
-{
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-
- common->fmt.fmt.pix.field = V4L2_FIELD_ANY;
- if (config_params.numbuffers[ch->channel_id] == 0)
- common->memory = V4L2_MEMORY_USERPTR;
- else
- common->memory = V4L2_MEMORY_MMAP;
-
- common->fmt.fmt.pix.sizeimage =
- config_params.channel_bufsize[ch->channel_id];
- common->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_YUV422P;
- common->fmt.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
-}
-
-static int vpif_check_format(struct channel_obj *ch,
- struct v4l2_pix_format *pixfmt)
-{
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
- enum v4l2_field field = pixfmt->field;
- u32 sizeimage, hpitch, vpitch;
-
- if (pixfmt->pixelformat != V4L2_PIX_FMT_YUV422P)
- goto invalid_fmt_exit;
-
- if (!(VPIF_VALID_FIELD(field)))
- goto invalid_fmt_exit;
-
- if (pixfmt->bytesperline <= 0)
- goto invalid_pitch_exit;
-
- sizeimage = pixfmt->sizeimage;
-
- if (vpif_update_resolution(ch))
- return -EINVAL;
-
- hpitch = pixfmt->bytesperline;
- vpitch = sizeimage / (hpitch * 2);
-
- /* Check for valid value of pitch */
- if ((hpitch < ch->vpifparams.std_info.width) ||
- (vpitch < ch->vpifparams.std_info.height))
- goto invalid_pitch_exit;
-
- /* Check for 8 byte alignment */
- if (!ISALIGNED(hpitch)) {
- vpif_err("invalid pitch alignment\n");
- return -EINVAL;
- }
- pixfmt->width = common->fmt.fmt.pix.width;
- pixfmt->height = common->fmt.fmt.pix.height;
-
- return 0;
-
-invalid_fmt_exit:
- vpif_err("invalid field format\n");
- return -EINVAL;
-
-invalid_pitch_exit:
- vpif_err("invalid pitch\n");
- return -EINVAL;
-}
-
-static void vpif_config_addr(struct channel_obj *ch, int muxmode)
-{
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-
- if (VPIF_CHANNEL3_VIDEO == ch->channel_id) {
- common->set_addr = ch3_set_videobuf_addr;
- } else {
- if (2 == muxmode)
- common->set_addr = ch2_set_videobuf_addr_yc_nmux;
- else
- common->set_addr = ch2_set_videobuf_addr;
- }
-}
-
-/*
- * vpif_mmap: It is used to map kernel space buffers into user spaces
- */
-static int vpif_mmap(struct file *filep, struct vm_area_struct *vma)
-{
- struct vpif_fh *fh = filep->private_data;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &(ch->common[VPIF_VIDEO_INDEX]);
- int ret;
-
- vpif_dbg(2, debug, "vpif_mmap\n");
-
- if (mutex_lock_interruptible(&common->lock))
- return -ERESTARTSYS;
- ret = vb2_mmap(&common->buffer_queue, vma);
- mutex_unlock(&common->lock);
- return ret;
-}
-
-/*
- * vpif_poll: It is used for select/poll system call
- */
-static unsigned int vpif_poll(struct file *filep, poll_table *wait)
-{
- struct vpif_fh *fh = filep->private_data;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
- unsigned int res = 0;
-
- if (common->started) {
- mutex_lock(&common->lock);
- res = vb2_poll(&common->buffer_queue, filep, wait);
- mutex_unlock(&common->lock);
- }
-
- return res;
-}
-
-/*
- * vpif_open: It creates object of file handle structure and stores it in
- * private_data member of filepointer
- */
-static int vpif_open(struct file *filep)
-{
- struct video_device *vdev = video_devdata(filep);
- struct channel_obj *ch = video_get_drvdata(vdev);
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
- struct vpif_fh *fh;
-
- /* Allocate memory for the file handle object */
- fh = kzalloc(sizeof(struct vpif_fh), GFP_KERNEL);
- if (fh == NULL) {
- vpif_err("unable to allocate memory for file handle object\n");
- return -ENOMEM;
- }
-
- if (mutex_lock_interruptible(&common->lock)) {
- kfree(fh);
- return -ERESTARTSYS;
- }
- /* store pointer to fh in private_data member of filep */
- filep->private_data = fh;
- fh->channel = ch;
- fh->initialized = 0;
- if (!ch->initialized) {
- fh->initialized = 1;
- ch->initialized = 1;
- memset(&ch->vpifparams, 0, sizeof(ch->vpifparams));
- }
-
- /* Increment channel usrs counter */
- atomic_inc(&ch->usrs);
- /* Set io_allowed[VPIF_VIDEO_INDEX] member to false */
- fh->io_allowed[VPIF_VIDEO_INDEX] = 0;
- /* Initialize priority of this instance to default priority */
- fh->prio = V4L2_PRIORITY_UNSET;
- v4l2_prio_open(&ch->prio, &fh->prio);
- mutex_unlock(&common->lock);
-
- return 0;
-}
-
-/*
- * vpif_release: This function deletes buffer queue, frees the buffers and
- * the vpif file handle
- */
-static int vpif_release(struct file *filep)
-{
- struct vpif_fh *fh = filep->private_data;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-
- mutex_lock(&common->lock);
- /* if this instance is doing IO */
- if (fh->io_allowed[VPIF_VIDEO_INDEX]) {
- /* Reset io_usrs member of channel object */
- common->io_usrs = 0;
- /* Disable channel */
- if (VPIF_CHANNEL2_VIDEO == ch->channel_id) {
- enable_channel2(0);
- channel2_intr_enable(0);
- }
- if ((VPIF_CHANNEL3_VIDEO == ch->channel_id) ||
- (2 == common->started)) {
- enable_channel3(0);
- channel3_intr_enable(0);
- }
- common->started = 0;
-
- /* Free buffers allocated */
- vb2_queue_release(&common->buffer_queue);
- vb2_dma_contig_cleanup_ctx(common->alloc_ctx);
-
- common->numbuffers =
- config_params.numbuffers[ch->channel_id];
- }
-
- /* Decrement channel usrs counter */
- atomic_dec(&ch->usrs);
- /* If this file handle has initialize encoder device, reset it */
- if (fh->initialized)
- ch->initialized = 0;
-
- /* Close the priority */
- v4l2_prio_close(&ch->prio, fh->prio);
- filep->private_data = NULL;
- fh->initialized = 0;
- mutex_unlock(&common->lock);
- kfree(fh);
-
- return 0;
-}
-
-/* functions implementing ioctls */
-/**
- * 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_display_config *config = vpif_dev->platform_data;
-
- cap->capabilities = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING;
- strlcpy(cap->driver, "vpif display", sizeof(cap->driver));
- strlcpy(cap->bus_info, "Platform", sizeof(cap->bus_info));
- strlcpy(cap->card, config->card_name, sizeof(cap->card));
-
- return 0;
-}
-
-static int vpif_enum_fmt_vid_out(struct file *file, void *priv,
- struct v4l2_fmtdesc *fmt)
-{
- if (fmt->index != 0) {
- vpif_err("Invalid format index\n");
- return -EINVAL;
- }
-
- /* Fill in the information about format */
- fmt->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
- strcpy(fmt->description, "YCbCr4:2:2 YC Planar");
- fmt->pixelformat = V4L2_PIX_FMT_YUV422P;
-
- return 0;
-}
-
-static int vpif_g_fmt_vid_out(struct file *file, void *priv,
- struct v4l2_format *fmt)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-
- /* Check the validity of the buffer type */
- if (common->fmt.type != fmt->type)
- return -EINVAL;
-
- if (vpif_update_resolution(ch))
- return -EINVAL;
- *fmt = common->fmt;
- return 0;
-}
-
-static int vpif_s_fmt_vid_out(struct file *file, void *priv,
- struct v4l2_format *fmt)
-{
- struct vpif_fh *fh = priv;
- struct v4l2_pix_format *pixfmt;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
- int ret = 0;
-
- if ((VPIF_CHANNEL2_VIDEO == ch->channel_id)
- || (VPIF_CHANNEL3_VIDEO == ch->channel_id)) {
- if (!fh->initialized) {
- vpif_dbg(1, debug, "Channel Busy\n");
- return -EBUSY;
- }
-
- /* Check for the priority */
- ret = v4l2_prio_check(&ch->prio, fh->prio);
- if (0 != ret)
- return ret;
- fh->initialized = 1;
- }
-
- if (common->started) {
- vpif_dbg(1, debug, "Streaming in progress\n");
- return -EBUSY;
- }
-
- pixfmt = &fmt->fmt.pix;
- /* Check for valid field format */
- ret = vpif_check_format(ch, pixfmt);
- if (ret)
- return ret;
-
- /* store the pix format in the channel object */
- common->fmt.fmt.pix = *pixfmt;
- /* store the format in the channel object */
- common->fmt = *fmt;
- return 0;
-}
-
-static int vpif_try_fmt_vid_out(struct file *file, void *priv,
- struct v4l2_format *fmt)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
- struct v4l2_pix_format *pixfmt = &fmt->fmt.pix;
- int ret = 0;
-
- ret = vpif_check_format(ch, pixfmt);
- if (ret) {
- *pixfmt = common->fmt.fmt.pix;
- pixfmt->sizeimage = pixfmt->width * pixfmt->height * 2;
- }
-
- return ret;
-}
-
-static int vpif_reqbufs(struct file *file, void *priv,
- struct v4l2_requestbuffers *reqbuf)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common;
- enum v4l2_field field;
- struct vb2_queue *q;
- u8 index = 0;
-
- /* This file handle has not initialized the channel,
- It is not allowed to do settings */
- if ((VPIF_CHANNEL2_VIDEO == ch->channel_id)
- || (VPIF_CHANNEL3_VIDEO == ch->channel_id)) {
- if (!fh->initialized) {
- vpif_err("Channel Busy\n");
- return -EBUSY;
- }
- }
-
- if (V4L2_BUF_TYPE_VIDEO_OUTPUT != reqbuf->type)
- return -EINVAL;
-
- index = VPIF_VIDEO_INDEX;
-
- common = &ch->common[index];
-
- if (common->fmt.type != reqbuf->type || !vpif_dev)
- return -EINVAL;
- if (0 != common->io_usrs)
- return -EBUSY;
-
- if (reqbuf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
- if (common->fmt.fmt.pix.field == V4L2_FIELD_ANY)
- field = V4L2_FIELD_INTERLACED;
- else
- field = common->fmt.fmt.pix.field;
- } else {
- field = V4L2_VBI_INTERLACED;
- }
- /* Initialize videobuf2 queue as per the buffer type */
- common->alloc_ctx = vb2_dma_contig_init_ctx(vpif_dev);
- if (!common->alloc_ctx) {
- vpif_err("Failed to get the context\n");
- return -EINVAL;
- }
- q = &common->buffer_queue;
- q->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
- q->io_modes = VB2_MMAP | VB2_USERPTR;
- q->drv_priv = fh;
- q->ops = &video_qops;
- q->mem_ops = &vb2_dma_contig_memops;
- q->buf_struct_size = sizeof(struct vpif_disp_buffer);
-
- vb2_queue_init(q);
-
- /* Set io allowed member of file handle to TRUE */
- fh->io_allowed[index] = 1;
- /* Increment io usrs member of channel object to 1 */
- common->io_usrs = 1;
- /* Store type of memory requested in channel object */
- common->memory = reqbuf->memory;
- INIT_LIST_HEAD(&common->dma_queue);
- /* Allocate buffers */
- return vb2_reqbufs(&common->buffer_queue, reqbuf);
-}
-
-static int vpif_querybuf(struct file *file, void *priv,
- struct v4l2_buffer *tbuf)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-
- if (common->fmt.type != tbuf->type)
- return -EINVAL;
-
- return vb2_querybuf(&common->buffer_queue, tbuf);
-}
-
-static int vpif_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
-{
- struct vpif_fh *fh = NULL;
- struct channel_obj *ch = NULL;
- struct common_obj *common = NULL;
-
- if (!buf || !priv)
- return -EINVAL;
-
- fh = priv;
- ch = fh->channel;
- if (!ch)
- return -EINVAL;
-
- common = &(ch->common[VPIF_VIDEO_INDEX]);
- if (common->fmt.type != buf->type)
- return -EINVAL;
-
- if (!fh->io_allowed[VPIF_VIDEO_INDEX]) {
- vpif_err("fh->io_allowed\n");
- return -EACCES;
- }
-
- return vb2_qbuf(&common->buffer_queue, buf);
-}
-
-static int vpif_s_std(struct file *file, void *priv, v4l2_std_id *std_id)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
- int ret = 0;
-
- if (!(*std_id & VPIF_V4L2_STD))
- return -EINVAL;
-
- if (common->started) {
- vpif_err("streaming in progress\n");
- return -EBUSY;
- }
-
- /* Call encoder subdevice function to set the standard */
- ch->video.stdid = *std_id;
- ch->video.dv_preset = V4L2_DV_INVALID;
- memset(&ch->video.bt_timings, 0, sizeof(ch->video.bt_timings));
-
- /* Get the information about the standard */
- if (vpif_update_resolution(ch))
- return -EINVAL;
-
- if ((ch->vpifparams.std_info.width *
- ch->vpifparams.std_info.height * 2) >
- config_params.channel_bufsize[ch->channel_id]) {
- vpif_err("invalid std for this size\n");
- return -EINVAL;
- }
-
- common->fmt.fmt.pix.bytesperline = common->fmt.fmt.pix.width;
- /* Configure the default format information */
- vpif_config_format(ch);
-
- ret = v4l2_device_call_until_err(&vpif_obj.v4l2_dev, 1, video,
- s_std_output, *std_id);
- if (ret < 0) {
- vpif_err("Failed to set output standard\n");
- return ret;
- }
-
- ret = v4l2_device_call_until_err(&vpif_obj.v4l2_dev, 1, core,
- s_std, *std_id);
- if (ret < 0)
- vpif_err("Failed to set standard for sub devices\n");
- return ret;
-}
-
-static int vpif_g_std(struct file *file, void *priv, v4l2_std_id *std)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
-
- *std = ch->video.stdid;
- return 0;
-}
-
-static int vpif_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-
- return vb2_dqbuf(&common->buffer_queue, p,
- (file->f_flags & O_NONBLOCK));
-}
-
-static int vpif_streamon(struct file *file, void *priv,
- enum v4l2_buf_type buftype)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
- struct channel_obj *oth_ch = vpif_obj.dev[!ch->channel_id];
- int ret = 0;
-
- if (buftype != V4L2_BUF_TYPE_VIDEO_OUTPUT) {
- vpif_err("buffer type not supported\n");
- return -EINVAL;
- }
-
- if (!fh->io_allowed[VPIF_VIDEO_INDEX]) {
- vpif_err("fh->io_allowed\n");
- return -EACCES;
- }
-
- /* If Streaming is already started, return error */
- if (common->started) {
- vpif_err("channel->started\n");
- return -EBUSY;
- }
-
- if ((ch->channel_id == VPIF_CHANNEL2_VIDEO
- && oth_ch->common[VPIF_VIDEO_INDEX].started &&
- ch->vpifparams.std_info.ycmux_mode == 0)
- || ((ch->channel_id == VPIF_CHANNEL3_VIDEO)
- && (2 == oth_ch->common[VPIF_VIDEO_INDEX].started))) {
- vpif_err("other channel is using\n");
- return -EBUSY;
- }
-
- ret = vpif_check_format(ch, &common->fmt.fmt.pix);
- if (ret < 0)
- return ret;
-
- /* Call vb2_streamon to start streaming in videobuf2 */
- ret = vb2_streamon(&common->buffer_queue, buftype);
- if (ret < 0) {
- vpif_err("vb2_streamon\n");
- return ret;
- }
-
- return ret;
-}
-
-static int vpif_streamoff(struct file *file, void *priv,
- enum v4l2_buf_type buftype)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
- struct vpif_display_config *vpif_config_data =
- vpif_dev->platform_data;
-
- if (buftype != V4L2_BUF_TYPE_VIDEO_OUTPUT) {
- vpif_err("buffer type not supported\n");
- return -EINVAL;
- }
-
- if (!fh->io_allowed[VPIF_VIDEO_INDEX]) {
- vpif_err("fh->io_allowed\n");
- return -EACCES;
- }
-
- if (!common->started) {
- vpif_err("channel->started\n");
- return -EINVAL;
- }
-
- if (buftype == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
- /* disable channel */
- if (VPIF_CHANNEL2_VIDEO == ch->channel_id) {
- if (vpif_config_data->ch2_clip_en)
- channel2_clipping_enable(0);
- enable_channel2(0);
- channel2_intr_enable(0);
- }
- if ((VPIF_CHANNEL3_VIDEO == ch->channel_id) ||
- (2 == common->started)) {
- if (vpif_config_data->ch3_clip_en)
- channel3_clipping_enable(0);
- enable_channel3(0);
- channel3_intr_enable(0);
- }
- }
-
- common->started = 0;
- return vb2_streamoff(&common->buffer_queue, buftype);
-}
-
-static int vpif_cropcap(struct file *file, void *priv,
- struct v4l2_cropcap *crop)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
- if (V4L2_BUF_TYPE_VIDEO_OUTPUT != crop->type)
- return -EINVAL;
-
- crop->bounds.left = crop->bounds.top = 0;
- crop->defrect.left = crop->defrect.top = 0;
- crop->defrect.height = crop->bounds.height = common->height;
- crop->defrect.width = crop->bounds.width = common->width;
-
- return 0;
-}
-
-static int vpif_enum_output(struct file *file, void *fh,
- struct v4l2_output *output)
-{
-
- struct vpif_display_config *config = vpif_dev->platform_data;
-
- if (output->index >= config->output_count) {
- vpif_dbg(1, debug, "Invalid output index\n");
- return -EINVAL;
- }
-
- strcpy(output->name, config->output[output->index]);
- output->type = V4L2_OUTPUT_TYPE_ANALOG;
- output->std = VPIF_V4L2_STD;
-
- return 0;
-}
-
-static int vpif_s_output(struct file *file, void *priv, unsigned int i)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct video_obj *vid_ch = &ch->video;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
- int ret = 0;
-
- if (common->started) {
- vpif_err("Streaming in progress\n");
- return -EBUSY;
- }
-
- ret = v4l2_device_call_until_err(&vpif_obj.v4l2_dev, 1, video,
- s_routing, 0, i, 0);
-
- if (ret < 0)
- vpif_err("Failed to set output standard\n");
-
- vid_ch->output_id = i;
- return ret;
-}
-
-static int vpif_g_output(struct file *file, void *priv, unsigned int *i)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct video_obj *vid_ch = &ch->video;
-
- *i = vid_ch->output_id;
-
- return 0;
-}
-
-static int vpif_g_priority(struct file *file, void *priv, enum v4l2_priority *p)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
-
- *p = v4l2_prio_max(&ch->prio);
-
- return 0;
-}
-
-static int vpif_s_priority(struct file *file, void *priv, enum v4l2_priority p)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
-
- return v4l2_prio_change(&ch->prio, &fh->prio, p);
-}
-
-/**
- * vpif_enum_dv_presets() - ENUM_DV_PRESETS handler
- * @file: file ptr
- * @priv: file handle
- * @preset: input preset
- */
-static int vpif_enum_dv_presets(struct file *file, void *priv,
- struct v4l2_dv_enum_preset *preset)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct video_obj *vid_ch = &ch->video;
-
- return v4l2_subdev_call(vpif_obj.sd[vid_ch->output_id],
- video, enum_dv_presets, preset);
-}
-
-/**
- * vpif_s_dv_presets() - S_DV_PRESETS handler
- * @file: file ptr
- * @priv: file handle
- * @preset: input preset
- */
-static int vpif_s_dv_preset(struct file *file, void *priv,
- struct v4l2_dv_preset *preset)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
- struct video_obj *vid_ch = &ch->video;
- int ret = 0;
-
- if (common->started) {
- vpif_dbg(1, debug, "streaming in progress\n");
- return -EBUSY;
- }
-
- ret = v4l2_prio_check(&ch->prio, fh->prio);
- if (ret != 0)
- return ret;
-
- fh->initialized = 1;
-
- /* Call encoder subdevice function to set the standard */
- if (mutex_lock_interruptible(&common->lock))
- return -ERESTARTSYS;
-
- ch->video.dv_preset = preset->preset;
- ch->video.stdid = V4L2_STD_UNKNOWN;
- memset(&ch->video.bt_timings, 0, sizeof(ch->video.bt_timings));
-
- /* Get the information about the standard */
- if (vpif_update_resolution(ch)) {
- ret = -EINVAL;
- } else {
- /* Configure the default format information */
- vpif_config_format(ch);
-
- ret = v4l2_subdev_call(vpif_obj.sd[vid_ch->output_id],
- video, s_dv_preset, preset);
- }
-
- mutex_unlock(&common->lock);
-
- return ret;
-}
-/**
- * vpif_g_dv_presets() - G_DV_PRESETS handler
- * @file: file ptr
- * @priv: file handle
- * @preset: input preset
- */
-static int vpif_g_dv_preset(struct file *file, void *priv,
- struct v4l2_dv_preset *preset)
-{
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
-
- preset->preset = ch->video.dv_preset;
-
- return 0;
-}
-/**
- * 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_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct vpif_params *vpifparams = &ch->vpifparams;
- struct vpif_channel_config_params *std_info = &vpifparams->std_info;
- struct video_obj *vid_ch = &ch->video;
- struct v4l2_bt_timings *bt = &vid_ch->bt_timings;
- int ret;
-
- if (timings->type != V4L2_DV_BT_656_1120) {
- vpif_dbg(2, debug, "Timing type not defined\n");
- return -EINVAL;
- }
-
- /* Configure subdevice timings, if any */
- ret = v4l2_subdev_call(vpif_obj.sd[vid_ch->output_id],
- video, s_dv_timings, timings);
- if (ret == -ENOIOCTLCMD) {
- vpif_dbg(2, debug, "Custom DV timings not supported by "
- "subdevice\n");
- return -EINVAL;
- }
- 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;
- }
-
- *bt = timings->bt;
-
- /* Configure video port timings */
-
- std_info->eav2sav = bt->hbackporch + bt->hfrontporch +
- bt->hsync - 8;
- std_info->sav2eav = bt->width;
-
- std_info->l1 = 1;
- std_info->l3 = bt->vsync + bt->vbackporch + 1;
-
- if (bt->interlaced) {
- if (bt->il_vbackporch || bt->il_vfrontporch || bt->il_vsync) {
- std_info->vsize = bt->height * 2 +
- bt->vfrontporch + bt->vsync + bt->vbackporch +
- bt->il_vfrontporch + bt->il_vsync +
- bt->il_vbackporch;
- std_info->l5 = std_info->vsize/2 -
- (bt->vfrontporch - 1);
- std_info->l7 = std_info->vsize/2 + 1;
- 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->vsize = bt->height + bt->vfrontporch +
- bt->vsync + bt->vbackporch;
- std_info->l5 = std_info->vsize - (bt->vfrontporch - 1);
- }
- strncpy(std_info->name, "Custom timings BT656/1120",
- VPIF_MAX_NAME);
- 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;
- std_info->dv_preset = V4L2_DV_INVALID;
-
- vid_ch->stdid = 0;
- vid_ch->dv_preset = V4L2_DV_INVALID;
-
- 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_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct video_obj *vid_ch = &ch->video;
- struct v4l2_bt_timings *bt = &vid_ch->bt_timings;
-
- timings->bt = *bt;
-
- return 0;
-}
-
-/*
- * vpif_g_chip_ident() - Identify the chip
- * @file: file ptr
- * @priv: file handle
- * @chip: chip identity
- *
- * Returns zero or -EINVAL if read operations fails.
- */
-static int vpif_g_chip_ident(struct file *file, void *priv,
- struct v4l2_dbg_chip_ident *chip)
-{
- chip->ident = V4L2_IDENT_NONE;
- chip->revision = 0;
- if (chip->match.type != V4L2_CHIP_MATCH_I2C_DRIVER &&
- chip->match.type != V4L2_CHIP_MATCH_I2C_ADDR) {
- vpif_dbg(2, debug, "match_type is invalid.\n");
- return -EINVAL;
- }
-
- return v4l2_device_call_until_err(&vpif_obj.v4l2_dev, 0, core,
- g_chip_ident, chip);
-}
-
-#ifdef CONFIG_VIDEO_ADV_DEBUG
-/*
- * vpif_dbg_g_register() - Read register
- * @file: file ptr
- * @priv: file handle
- * @reg: register to be read
- *
- * Debugging only
- * Returns zero or -EINVAL if read operations fails.
- */
-static int vpif_dbg_g_register(struct file *file, void *priv,
- struct v4l2_dbg_register *reg){
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct video_obj *vid_ch = &ch->video;
-
- return v4l2_subdev_call(vpif_obj.sd[vid_ch->output_id], core,
- g_register, reg);
-}
-
-/*
- * vpif_dbg_s_register() - Write to register
- * @file: file ptr
- * @priv: file handle
- * @reg: register to be modified
- *
- * Debugging only
- * Returns zero or -EINVAL if write operations fails.
- */
-static int vpif_dbg_s_register(struct file *file, void *priv,
- struct v4l2_dbg_register *reg){
- struct vpif_fh *fh = priv;
- struct channel_obj *ch = fh->channel;
- struct video_obj *vid_ch = &ch->video;
-
- return v4l2_subdev_call(vpif_obj.sd[vid_ch->output_id], core,
- s_register, reg);
-}
-#endif
-
-/*
- * 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 display ioctl operations */
-static const struct v4l2_ioctl_ops vpif_ioctl_ops = {
- .vidioc_querycap = vpif_querycap,
- .vidioc_g_priority = vpif_g_priority,
- .vidioc_s_priority = vpif_s_priority,
- .vidioc_enum_fmt_vid_out = vpif_enum_fmt_vid_out,
- .vidioc_g_fmt_vid_out = vpif_g_fmt_vid_out,
- .vidioc_s_fmt_vid_out = vpif_s_fmt_vid_out,
- .vidioc_try_fmt_vid_out = vpif_try_fmt_vid_out,
- .vidioc_reqbufs = vpif_reqbufs,
- .vidioc_querybuf = vpif_querybuf,
- .vidioc_qbuf = vpif_qbuf,
- .vidioc_dqbuf = vpif_dqbuf,
- .vidioc_streamon = vpif_streamon,
- .vidioc_streamoff = vpif_streamoff,
- .vidioc_s_std = vpif_s_std,
- .vidioc_g_std = vpif_g_std,
- .vidioc_enum_output = vpif_enum_output,
- .vidioc_s_output = vpif_s_output,
- .vidioc_g_output = vpif_g_output,
- .vidioc_cropcap = vpif_cropcap,
- .vidioc_enum_dv_presets = vpif_enum_dv_presets,
- .vidioc_s_dv_preset = vpif_s_dv_preset,
- .vidioc_g_dv_preset = vpif_g_dv_preset,
- .vidioc_s_dv_timings = vpif_s_dv_timings,
- .vidioc_g_dv_timings = vpif_g_dv_timings,
- .vidioc_g_chip_ident = vpif_g_chip_ident,
-#ifdef CONFIG_VIDEO_ADV_DEBUG
- .vidioc_g_register = vpif_dbg_g_register,
- .vidioc_s_register = vpif_dbg_s_register,
-#endif
- .vidioc_log_status = vpif_log_status,
-};
-
-static const struct v4l2_file_operations vpif_fops = {
- .owner = THIS_MODULE,
- .open = vpif_open,
- .release = vpif_release,
- .unlocked_ioctl = video_ioctl2,
- .mmap = vpif_mmap,
- .poll = vpif_poll
-};
-
-static struct video_device vpif_video_template = {
- .name = "vpif",
- .fops = &vpif_fops,
- .ioctl_ops = &vpif_ioctl_ops,
- .tvnorms = VPIF_V4L2_STD,
- .current_norm = V4L2_STD_625_50,
-
-};
-
-/*Configure the channels, buffer sizei, request irq */
-static int initialize_vpif(void)
-{
- int free_channel_objects_index;
- int free_buffer_channel_index;
- int free_buffer_index;
- int err = 0, i, j;
-
- /* Default number of buffers should be 3 */
- if ((ch2_numbuffers > 0) &&
- (ch2_numbuffers < config_params.min_numbuffers))
- ch2_numbuffers = config_params.min_numbuffers;
- if ((ch3_numbuffers > 0) &&
- (ch3_numbuffers < config_params.min_numbuffers))
- ch3_numbuffers = config_params.min_numbuffers;
-
- /* Set buffer size to min buffers size if invalid buffer size is
- * given */
- if (ch2_bufsize < config_params.min_bufsize[VPIF_CHANNEL2_VIDEO])
- ch2_bufsize =
- config_params.min_bufsize[VPIF_CHANNEL2_VIDEO];
- if (ch3_bufsize < config_params.min_bufsize[VPIF_CHANNEL3_VIDEO])
- ch3_bufsize =
- config_params.min_bufsize[VPIF_CHANNEL3_VIDEO];
-
- config_params.numbuffers[VPIF_CHANNEL2_VIDEO] = ch2_numbuffers;
-
- if (ch2_numbuffers) {
- config_params.channel_bufsize[VPIF_CHANNEL2_VIDEO] =
- ch2_bufsize;
- }
- config_params.numbuffers[VPIF_CHANNEL3_VIDEO] = ch3_numbuffers;
-
- if (ch3_numbuffers) {
- config_params.channel_bufsize[VPIF_CHANNEL3_VIDEO] =
- ch3_bufsize;
- }
-
- /* Allocate memory for six channel objects */
- for (i = 0; i < VPIF_DISPLAY_MAX_DEVICES; i++) {
- vpif_obj.dev[i] =
- kzalloc(sizeof(struct channel_obj), 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;
- }
- }
-
- free_channel_objects_index = VPIF_DISPLAY_MAX_DEVICES;
- free_buffer_channel_index = VPIF_DISPLAY_NUM_CHANNELS;
- free_buffer_index = config_params.numbuffers[i - 1];
-
- return 0;
-
-vpif_init_free_channel_objects:
- for (j = 0; j < free_channel_objects_index; j++)
- kfree(vpif_obj.dev[j]);
- return err;
-}
-
-/*
- * vpif_probe: This function 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 vpif_display_config *config;
- int i, j = 0, k, q, m, err = 0;
- struct i2c_adapter *i2c_adap;
- struct common_obj *common;
- struct channel_obj *ch;
- struct video_device *vfd;
- struct resource *res;
- int subdev_count;
- size_t size;
-
- 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;
- }
-
- k = 0;
- while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, k))) {
- for (i = res->start; i <= res->end; i++) {
- if (request_irq(i, vpif_channel_isr, IRQF_SHARED,
- "VPIF_Display",
- (void *)(&vpif_obj.dev[k]->channel_id))) {
- err = -EBUSY;
- goto vpif_int_err;
- }
- }
- k++;
- }
-
- for (i = 0; i < VPIF_DISPLAY_MAX_DEVICES; i++) {
-
- /* Get the pointer to the channel object */
- ch = vpif_obj.dev[i];
-
- /* Allocate memory for video device */
- vfd = video_device_alloc();
- if (vfd == NULL) {
- for (j = 0; j < i; j++) {
- ch = vpif_obj.dev[j];
- video_device_release(ch->video_dev);
- }
- err = -ENOMEM;
- goto vpif_int_err;
- }
-
- /* Initialize field of video device */
- *vfd = vpif_video_template;
- vfd->v4l2_dev = &vpif_obj.v4l2_dev;
- vfd->release = video_device_release;
- snprintf(vfd->name, sizeof(vfd->name),
- "VPIF_Display_DRIVER_V%s",
- VPIF_DISPLAY_VERSION);
-
- /* Set video_dev to the video device */
- ch->video_dev = vfd;
- }
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (res) {
- size = resource_size(res);
- /* The resources are divided into two equal memory and when
- * we have HD output we can add them together
- */
- for (j = 0; j < VPIF_DISPLAY_MAX_DEVICES; j++) {
- ch = vpif_obj.dev[j];
- ch->channel_id = j;
-
- /* only enabled if second resource exists */
- config_params.video_limit[ch->channel_id] = 0;
- if (size)
- config_params.video_limit[ch->channel_id] =
- size/2;
- }
- }
-
- for (j = 0; j < VPIF_DISPLAY_MAX_DEVICES; j++) {
- ch = vpif_obj.dev[j];
- /* Initialize field of the channel objects */
- atomic_set(&ch->usrs, 0);
- for (k = 0; k < VPIF_NUMOBJECTS; k++) {
- ch->common[k].numbuffers = 0;
- common = &ch->common[k];
- common->io_usrs = 0;
- common->started = 0;
- spin_lock_init(&common->irqlock);
- mutex_init(&common->lock);
- common->numbuffers = 0;
- common->set_addr = NULL;
- common->ytop_off = common->ybtm_off = 0;
- common->ctop_off = common->cbtm_off = 0;
- common->cur_frm = common->next_frm = NULL;
- memset(&common->fmt, 0, sizeof(common->fmt));
- common->numbuffers = config_params.numbuffers[k];
-
- }
- ch->initialized = 0;
- ch->channel_id = j;
- if (j < 2)
- ch->common[VPIF_VIDEO_INDEX].numbuffers =
- config_params.numbuffers[ch->channel_id];
- else
- ch->common[VPIF_VIDEO_INDEX].numbuffers = 0;
-
- memset(&ch->vpifparams, 0, sizeof(ch->vpifparams));
-
- /* Initialize prio member of channel object */
- v4l2_prio_init(&ch->prio);
- ch->common[VPIF_VIDEO_INDEX].fmt.type =
- V4L2_BUF_TYPE_VIDEO_OUTPUT;
- ch->video_dev->lock = &common->lock;
-
- /* register video device */
- vpif_dbg(1, debug, "channel=%x,channel->video_dev=%x\n",
- (int)ch, (int)&ch->video_dev);
-
- err = video_register_device(ch->video_dev,
- VFL_TYPE_GRABBER, (j ? 3 : 2));
- if (err < 0)
- goto probe_out;
-
- video_set_drvdata(ch->video_dev, ch);
- }
-
- i2c_adap = i2c_get_adapter(1);
- config = pdev->dev.platform_data;
- subdev_count = config->subdev_count;
- subdevdata = config->subdevinfo;
- vpif_obj.sd = kzalloc(sizeof(struct v4l2_subdev *) * subdev_count,
- GFP_KERNEL);
- if (vpif_obj.sd == NULL) {
- vpif_err("unable to allocate memory for subdevice pointers\n");
- err = -ENOMEM;
- goto probe_out;
- }
-
- for (i = 0; i < subdev_count; i++) {
- vpif_obj.sd[i] = v4l2_i2c_new_subdev_board(&vpif_obj.v4l2_dev,
- i2c_adap,
- &subdevdata[i].board_info,
- NULL);
- if (!vpif_obj.sd[i]) {
- vpif_err("Error registering v4l2 subdevice\n");
- goto probe_subdev_out;
- }
-
- if (vpif_obj.sd[i])
- vpif_obj.sd[i]->grp_id = 1 << i;
- }
-
- v4l2_info(&vpif_obj.v4l2_dev,
- " VPIF display driver initialized\n");
- return 0;
-
-probe_subdev_out:
- kfree(vpif_obj.sd);
-probe_out:
- for (k = 0; k < j; k++) {
- ch = vpif_obj.dev[k];
- video_unregister_device(ch->video_dev);
- video_device_release(ch->video_dev);
- ch->video_dev = NULL;
- }
-vpif_int_err:
- v4l2_device_unregister(&vpif_obj.v4l2_dev);
- vpif_err("VPIF IRQ request failed\n");
- for (q = k; k >= 0; k--) {
- for (m = i; m >= res->start; m--)
- free_irq(m, (void *)(&vpif_obj.dev[k]->channel_id));
- res = platform_get_resource(pdev, IORESOURCE_IRQ, k-1);
- m = res->end;
- }
-
- return err;
-}
-
-/*
- * vpif_remove: It un-register channels from V4L2 driver
- */
-static int vpif_remove(struct platform_device *device)
-{
- struct channel_obj *ch;
- int i;
-
- v4l2_device_unregister(&vpif_obj.v4l2_dev);
-
- /* un-register device */
- for (i = 0; i < VPIF_DISPLAY_MAX_DEVICES; i++) {
- /* Get the pointer to the channel object */
- ch = vpif_obj.dev[i];
- /* Unregister video device */
- video_unregister_device(ch->video_dev);
-
- ch->video_dev = NULL;
- }
-
- return 0;
-}
-
-#ifdef CONFIG_PM
-static int vpif_suspend(struct device *dev)
-{
- struct common_obj *common;
- struct channel_obj *ch;
- int i;
-
- for (i = 0; i < VPIF_DISPLAY_MAX_DEVICES; i++) {
- /* Get the pointer to the channel object */
- ch = vpif_obj.dev[i];
- common = &ch->common[VPIF_VIDEO_INDEX];
- mutex_lock(&common->lock);
- if (atomic_read(&ch->usrs) && common->io_usrs) {
- /* Disable channel */
- if (ch->channel_id == VPIF_CHANNEL2_VIDEO) {
- enable_channel2(0);
- channel2_intr_enable(0);
- }
- if (ch->channel_id == VPIF_CHANNEL3_VIDEO ||
- common->started == 2) {
- enable_channel3(0);
- channel3_intr_enable(0);
- }
- }
- mutex_unlock(&common->lock);
- }
-
- return 0;
-}
-
-static int vpif_resume(struct device *dev)
-{
-
- struct common_obj *common;
- struct channel_obj *ch;
- int i;
-
- for (i = 0; i < VPIF_DISPLAY_MAX_DEVICES; i++) {
- /* Get the pointer to the channel object */
- ch = vpif_obj.dev[i];
- common = &ch->common[VPIF_VIDEO_INDEX];
- mutex_lock(&common->lock);
- if (atomic_read(&ch->usrs) && common->io_usrs) {
- /* Enable channel */
- if (ch->channel_id == VPIF_CHANNEL2_VIDEO) {
- enable_channel2(1);
- channel2_intr_enable(1);
- }
- if (ch->channel_id == VPIF_CHANNEL3_VIDEO ||
- common->started == 2) {
- enable_channel3(1);
- channel3_intr_enable(1);
- }
- }
- mutex_unlock(&common->lock);
- }
-
- return 0;
-}
-
-static const struct dev_pm_ops vpif_pm = {
- .suspend = vpif_suspend,
- .resume = vpif_resume,
-};
-
-#define vpif_pm_ops (&vpif_pm)
-#else
-#define vpif_pm_ops NULL
-#endif
-
-static __refdata struct platform_driver vpif_driver = {
- .driver = {
- .name = "vpif_display",
- .owner = THIS_MODULE,
- .pm = vpif_pm_ops,
- },
- .probe = vpif_probe,
- .remove = vpif_remove,
-};
-
-static __init int vpif_init(void)
-{
- return platform_driver_register(&vpif_driver);
-}
-
-/*
- * vpif_cleanup: This function un-registers device and driver to the kernel,
- * frees requested irq handler and de-allocates memory allocated for channel
- * objects.
- */
-static void vpif_cleanup(void)
-{
- struct platform_device *pdev;
- struct resource *res;
- int irq_num;
- int i = 0;
-
- pdev = container_of(vpif_dev, struct platform_device, dev);
-
- while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, i))) {
- for (irq_num = res->start; irq_num <= res->end; irq_num++)
- free_irq(irq_num,
- (void *)(&vpif_obj.dev[i]->channel_id));
- i++;
- }
-
- platform_driver_unregister(&vpif_driver);
- kfree(vpif_obj.sd);
- for (i = 0; i < VPIF_DISPLAY_MAX_DEVICES; i++)
- kfree(vpif_obj.dev[i]);
-}
-
-module_init(vpif_init);
-module_exit(vpif_cleanup);
projects / firefly-linux-kernel-4.4.55.git / blobdiff