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@@ -1,989 +0,0 @@
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-/*
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- * Analog Devices video capture driver
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- *
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- * Copyright (c) 2011 Analog Devices Inc.
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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- * GNU General Public License for more details.
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- */
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-
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-#include <linux/completion.h>
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-#include <linux/delay.h>
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-#include <linux/errno.h>
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-#include <linux/fs.h>
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-#include <linux/i2c.h>
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-#include <linux/init.h>
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-#include <linux/interrupt.h>
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-#include <linux/io.h>
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-#include <linux/mm.h>
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-#include <linux/module.h>
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-#include <linux/platform_device.h>
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-#include <linux/slab.h>
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-#include <linux/time.h>
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-#include <linux/types.h>
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-
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-#include <media/v4l2-common.h>
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-#include <media/v4l2-ctrls.h>
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-#include <media/v4l2-device.h>
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-#include <media/v4l2-ioctl.h>
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-#include <media/videobuf2-dma-contig.h>
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-
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-#include <asm/dma.h>
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-
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-#include <media/blackfin/bfin_capture.h>
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-#include <media/blackfin/ppi.h>
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-
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-#define CAPTURE_DRV_NAME "bfin_capture"
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-
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-struct bcap_format {
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- char *desc;
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- u32 pixelformat;
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- u32 mbus_code;
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- int bpp; /* bits per pixel */
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- int dlen; /* data length for ppi in bits */
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-};
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-
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-struct bcap_buffer {
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- struct vb2_v4l2_buffer vb;
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- struct list_head list;
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-};
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-
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-struct bcap_device {
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- /* capture device instance */
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- struct v4l2_device v4l2_dev;
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- /* v4l2 control handler */
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- struct v4l2_ctrl_handler ctrl_handler;
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- /* device node data */
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- struct video_device video_dev;
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- /* sub device instance */
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- struct v4l2_subdev *sd;
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- /* capture config */
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- struct bfin_capture_config *cfg;
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- /* ppi interface */
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- struct ppi_if *ppi;
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- /* current input */
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- unsigned int cur_input;
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- /* current selected standard */
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- v4l2_std_id std;
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- /* current selected dv_timings */
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- struct v4l2_dv_timings dv_timings;
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- /* used to store pixel format */
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- struct v4l2_pix_format fmt;
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- /* bits per pixel*/
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- int bpp;
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- /* data length for ppi in bits */
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- int dlen;
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- /* used to store sensor supported format */
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- struct bcap_format *sensor_formats;
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- /* number of sensor formats array */
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- int num_sensor_formats;
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- /* pointing to current video buffer */
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- struct bcap_buffer *cur_frm;
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- /* buffer queue used in videobuf2 */
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- struct vb2_queue buffer_queue;
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- /* queue of filled frames */
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- struct list_head dma_queue;
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- /* used in videobuf2 callback */
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- spinlock_t lock;
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- /* used to access capture device */
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- struct mutex mutex;
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- /* used to wait ppi to complete one transfer */
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- struct completion comp;
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- /* prepare to stop */
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- bool stop;
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- /* vb2 buffer sequence counter */
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- unsigned sequence;
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-};
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-
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-static const struct bcap_format bcap_formats[] = {
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- {
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- .desc = "YCbCr 4:2:2 Interleaved UYVY",
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- .pixelformat = V4L2_PIX_FMT_UYVY,
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- .mbus_code = MEDIA_BUS_FMT_UYVY8_2X8,
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- .bpp = 16,
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- .dlen = 8,
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- },
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- {
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- .desc = "YCbCr 4:2:2 Interleaved YUYV",
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- .pixelformat = V4L2_PIX_FMT_YUYV,
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- .mbus_code = MEDIA_BUS_FMT_YUYV8_2X8,
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- .bpp = 16,
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- .dlen = 8,
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- },
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- {
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- .desc = "YCbCr 4:2:2 Interleaved UYVY",
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- .pixelformat = V4L2_PIX_FMT_UYVY,
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- .mbus_code = MEDIA_BUS_FMT_UYVY8_1X16,
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- .bpp = 16,
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- .dlen = 16,
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- },
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- {
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- .desc = "RGB 565",
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- .pixelformat = V4L2_PIX_FMT_RGB565,
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- .mbus_code = MEDIA_BUS_FMT_RGB565_2X8_LE,
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- .bpp = 16,
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- .dlen = 8,
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- },
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- {
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- .desc = "RGB 444",
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- .pixelformat = V4L2_PIX_FMT_RGB444,
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- .mbus_code = MEDIA_BUS_FMT_RGB444_2X8_PADHI_LE,
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- .bpp = 16,
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- .dlen = 8,
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- },
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-
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-};
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-#define BCAP_MAX_FMTS ARRAY_SIZE(bcap_formats)
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-
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-static irqreturn_t bcap_isr(int irq, void *dev_id);
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-
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-static struct bcap_buffer *to_bcap_vb(struct vb2_v4l2_buffer *vb)
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-{
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- return container_of(vb, struct bcap_buffer, vb);
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-}
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-
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-static int bcap_init_sensor_formats(struct bcap_device *bcap_dev)
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-{
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- struct v4l2_subdev_mbus_code_enum code = {
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- .which = V4L2_SUBDEV_FORMAT_ACTIVE,
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- };
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- struct bcap_format *sf;
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- unsigned int num_formats = 0;
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- int i, j;
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-
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- while (!v4l2_subdev_call(bcap_dev->sd, pad,
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- enum_mbus_code, NULL, &code)) {
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- num_formats++;
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- code.index++;
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- }
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- if (!num_formats)
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- return -ENXIO;
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-
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- sf = kcalloc(num_formats, sizeof(*sf), GFP_KERNEL);
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- if (!sf)
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- return -ENOMEM;
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-
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- for (i = 0; i < num_formats; i++) {
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- code.index = i;
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- v4l2_subdev_call(bcap_dev->sd, pad,
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- enum_mbus_code, NULL, &code);
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- for (j = 0; j < BCAP_MAX_FMTS; j++)
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- if (code.code == bcap_formats[j].mbus_code)
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- break;
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- if (j == BCAP_MAX_FMTS) {
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- /* we don't allow this sensor working with our bridge */
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- kfree(sf);
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- return -EINVAL;
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- }
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- sf[i] = bcap_formats[j];
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- }
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- bcap_dev->sensor_formats = sf;
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- bcap_dev->num_sensor_formats = num_formats;
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- return 0;
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-}
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-
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-static void bcap_free_sensor_formats(struct bcap_device *bcap_dev)
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-{
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- bcap_dev->num_sensor_formats = 0;
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- kfree(bcap_dev->sensor_formats);
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- bcap_dev->sensor_formats = NULL;
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-}
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-
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-static int bcap_queue_setup(struct vb2_queue *vq,
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- unsigned int *nbuffers, unsigned int *nplanes,
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- unsigned int sizes[], struct device *alloc_devs[])
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-{
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- struct bcap_device *bcap_dev = vb2_get_drv_priv(vq);
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-
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- if (vq->num_buffers + *nbuffers < 2)
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- *nbuffers = 2;
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-
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- if (*nplanes)
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- return sizes[0] < bcap_dev->fmt.sizeimage ? -EINVAL : 0;
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-
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- *nplanes = 1;
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- sizes[0] = bcap_dev->fmt.sizeimage;
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-
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- return 0;
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-}
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-
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-static int bcap_buffer_prepare(struct vb2_buffer *vb)
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-{
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- struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
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- struct bcap_device *bcap_dev = vb2_get_drv_priv(vb->vb2_queue);
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- unsigned long size = bcap_dev->fmt.sizeimage;
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-
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- if (vb2_plane_size(vb, 0) < size) {
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- v4l2_err(&bcap_dev->v4l2_dev, "buffer too small (%lu < %lu)\n",
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- vb2_plane_size(vb, 0), size);
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- return -EINVAL;
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- }
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- vb2_set_plane_payload(vb, 0, size);
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-
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- vbuf->field = bcap_dev->fmt.field;
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-
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- return 0;
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-}
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-
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-static void bcap_buffer_queue(struct vb2_buffer *vb)
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-{
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- struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
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- struct bcap_device *bcap_dev = vb2_get_drv_priv(vb->vb2_queue);
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- struct bcap_buffer *buf = to_bcap_vb(vbuf);
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- unsigned long flags;
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-
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- spin_lock_irqsave(&bcap_dev->lock, flags);
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- list_add_tail(&buf->list, &bcap_dev->dma_queue);
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- spin_unlock_irqrestore(&bcap_dev->lock, flags);
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-}
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-
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-static void bcap_buffer_cleanup(struct vb2_buffer *vb)
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-{
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- struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
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- struct bcap_device *bcap_dev = vb2_get_drv_priv(vb->vb2_queue);
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- struct bcap_buffer *buf = to_bcap_vb(vbuf);
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- unsigned long flags;
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-
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- spin_lock_irqsave(&bcap_dev->lock, flags);
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- list_del_init(&buf->list);
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- spin_unlock_irqrestore(&bcap_dev->lock, flags);
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-}
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-
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-static int bcap_start_streaming(struct vb2_queue *vq, unsigned int count)
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-{
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- struct bcap_device *bcap_dev = vb2_get_drv_priv(vq);
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- struct ppi_if *ppi = bcap_dev->ppi;
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- struct bcap_buffer *buf, *tmp;
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- struct ppi_params params;
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- dma_addr_t addr;
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- int ret;
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-
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- /* enable streamon on the sub device */
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- ret = v4l2_subdev_call(bcap_dev->sd, video, s_stream, 1);
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- if (ret && (ret != -ENOIOCTLCMD)) {
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- v4l2_err(&bcap_dev->v4l2_dev, "stream on failed in subdev\n");
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- goto err;
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- }
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-
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- /* set ppi params */
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- params.width = bcap_dev->fmt.width;
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- params.height = bcap_dev->fmt.height;
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- params.bpp = bcap_dev->bpp;
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- params.dlen = bcap_dev->dlen;
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- params.ppi_control = bcap_dev->cfg->ppi_control;
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- params.int_mask = bcap_dev->cfg->int_mask;
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- if (bcap_dev->cfg->inputs[bcap_dev->cur_input].capabilities
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- & V4L2_IN_CAP_DV_TIMINGS) {
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- struct v4l2_bt_timings *bt = &bcap_dev->dv_timings.bt;
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-
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- params.hdelay = bt->hsync + bt->hbackporch;
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- params.vdelay = bt->vsync + bt->vbackporch;
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- params.line = V4L2_DV_BT_FRAME_WIDTH(bt);
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- params.frame = V4L2_DV_BT_FRAME_HEIGHT(bt);
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- } else if (bcap_dev->cfg->inputs[bcap_dev->cur_input].capabilities
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- & V4L2_IN_CAP_STD) {
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- params.hdelay = 0;
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- params.vdelay = 0;
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- if (bcap_dev->std & V4L2_STD_525_60) {
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- params.line = 858;
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- params.frame = 525;
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- } else {
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- params.line = 864;
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- params.frame = 625;
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- }
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- } else {
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- params.hdelay = 0;
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- params.vdelay = 0;
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- params.line = params.width + bcap_dev->cfg->blank_pixels;
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- params.frame = params.height;
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- }
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- ret = ppi->ops->set_params(ppi, ¶ms);
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- if (ret < 0) {
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- v4l2_err(&bcap_dev->v4l2_dev,
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- "Error in setting ppi params\n");
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- goto err;
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- }
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-
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- /* attach ppi DMA irq handler */
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- ret = ppi->ops->attach_irq(ppi, bcap_isr);
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- if (ret < 0) {
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- v4l2_err(&bcap_dev->v4l2_dev,
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- "Error in attaching interrupt handler\n");
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- goto err;
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- }
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-
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- bcap_dev->sequence = 0;
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-
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- reinit_completion(&bcap_dev->comp);
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- bcap_dev->stop = false;
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-
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- /* get the next frame from the dma queue */
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- bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next,
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- struct bcap_buffer, list);
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- /* remove buffer from the dma queue */
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- list_del_init(&bcap_dev->cur_frm->list);
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- addr = vb2_dma_contig_plane_dma_addr(&bcap_dev->cur_frm->vb.vb2_buf,
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- 0);
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- /* update DMA address */
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- ppi->ops->update_addr(ppi, (unsigned long)addr);
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- /* enable ppi */
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- ppi->ops->start(ppi);
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-
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- return 0;
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-
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-err:
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- list_for_each_entry_safe(buf, tmp, &bcap_dev->dma_queue, list) {
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- list_del(&buf->list);
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- vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_QUEUED);
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- }
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-
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- return ret;
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-}
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-
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-static void bcap_stop_streaming(struct vb2_queue *vq)
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-{
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- struct bcap_device *bcap_dev = vb2_get_drv_priv(vq);
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- struct ppi_if *ppi = bcap_dev->ppi;
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- int ret;
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-
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- bcap_dev->stop = true;
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- wait_for_completion(&bcap_dev->comp);
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- ppi->ops->stop(ppi);
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- ppi->ops->detach_irq(ppi);
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- ret = v4l2_subdev_call(bcap_dev->sd, video, s_stream, 0);
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- if (ret && (ret != -ENOIOCTLCMD))
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- v4l2_err(&bcap_dev->v4l2_dev,
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- "stream off failed in subdev\n");
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-
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- /* release all active buffers */
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- if (bcap_dev->cur_frm)
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- vb2_buffer_done(&bcap_dev->cur_frm->vb.vb2_buf,
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- VB2_BUF_STATE_ERROR);
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-
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- while (!list_empty(&bcap_dev->dma_queue)) {
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- bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next,
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- struct bcap_buffer, list);
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- list_del_init(&bcap_dev->cur_frm->list);
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- vb2_buffer_done(&bcap_dev->cur_frm->vb.vb2_buf,
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- VB2_BUF_STATE_ERROR);
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- }
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-}
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-
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-static const struct vb2_ops bcap_video_qops = {
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- .queue_setup = bcap_queue_setup,
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- .buf_prepare = bcap_buffer_prepare,
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- .buf_cleanup = bcap_buffer_cleanup,
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|
|
- .buf_queue = bcap_buffer_queue,
|
|
|
- .wait_prepare = vb2_ops_wait_prepare,
|
|
|
- .wait_finish = vb2_ops_wait_finish,
|
|
|
- .start_streaming = bcap_start_streaming,
|
|
|
- .stop_streaming = bcap_stop_streaming,
|
|
|
-};
|
|
|
-
|
|
|
-static irqreturn_t bcap_isr(int irq, void *dev_id)
|
|
|
-{
|
|
|
- struct ppi_if *ppi = dev_id;
|
|
|
- struct bcap_device *bcap_dev = ppi->priv;
|
|
|
- struct vb2_v4l2_buffer *vbuf = &bcap_dev->cur_frm->vb;
|
|
|
- struct vb2_buffer *vb = &vbuf->vb2_buf;
|
|
|
- dma_addr_t addr;
|
|
|
-
|
|
|
- spin_lock(&bcap_dev->lock);
|
|
|
-
|
|
|
- if (!list_empty(&bcap_dev->dma_queue)) {
|
|
|
- vb->timestamp = ktime_get_ns();
|
|
|
- if (ppi->err) {
|
|
|
- vb2_buffer_done(vb, VB2_BUF_STATE_ERROR);
|
|
|
- ppi->err = false;
|
|
|
- } else {
|
|
|
- vbuf->sequence = bcap_dev->sequence++;
|
|
|
- vb2_buffer_done(vb, VB2_BUF_STATE_DONE);
|
|
|
- }
|
|
|
- bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next,
|
|
|
- struct bcap_buffer, list);
|
|
|
- list_del_init(&bcap_dev->cur_frm->list);
|
|
|
- } else {
|
|
|
- /* clear error flag, we will get a new frame */
|
|
|
- if (ppi->err)
|
|
|
- ppi->err = false;
|
|
|
- }
|
|
|
-
|
|
|
- ppi->ops->stop(ppi);
|
|
|
-
|
|
|
- if (bcap_dev->stop) {
|
|
|
- complete(&bcap_dev->comp);
|
|
|
- } else {
|
|
|
- addr = vb2_dma_contig_plane_dma_addr(
|
|
|
- &bcap_dev->cur_frm->vb.vb2_buf, 0);
|
|
|
- ppi->ops->update_addr(ppi, (unsigned long)addr);
|
|
|
- ppi->ops->start(ppi);
|
|
|
- }
|
|
|
-
|
|
|
- spin_unlock(&bcap_dev->lock);
|
|
|
-
|
|
|
- return IRQ_HANDLED;
|
|
|
-}
|
|
|
-
|
|
|
-static int bcap_querystd(struct file *file, void *priv, v4l2_std_id *std)
|
|
|
-{
|
|
|
- struct bcap_device *bcap_dev = video_drvdata(file);
|
|
|
- struct v4l2_input input;
|
|
|
-
|
|
|
- input = bcap_dev->cfg->inputs[bcap_dev->cur_input];
|
|
|
- if (!(input.capabilities & V4L2_IN_CAP_STD))
|
|
|
- return -ENODATA;
|
|
|
-
|
|
|
- return v4l2_subdev_call(bcap_dev->sd, video, querystd, std);
|
|
|
-}
|
|
|
-
|
|
|
-static int bcap_g_std(struct file *file, void *priv, v4l2_std_id *std)
|
|
|
-{
|
|
|
- struct bcap_device *bcap_dev = video_drvdata(file);
|
|
|
- struct v4l2_input input;
|
|
|
-
|
|
|
- input = bcap_dev->cfg->inputs[bcap_dev->cur_input];
|
|
|
- if (!(input.capabilities & V4L2_IN_CAP_STD))
|
|
|
- return -ENODATA;
|
|
|
-
|
|
|
- *std = bcap_dev->std;
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-static int bcap_s_std(struct file *file, void *priv, v4l2_std_id std)
|
|
|
-{
|
|
|
- struct bcap_device *bcap_dev = video_drvdata(file);
|
|
|
- struct v4l2_input input;
|
|
|
- int ret;
|
|
|
-
|
|
|
- input = bcap_dev->cfg->inputs[bcap_dev->cur_input];
|
|
|
- if (!(input.capabilities & V4L2_IN_CAP_STD))
|
|
|
- return -ENODATA;
|
|
|
-
|
|
|
- if (vb2_is_busy(&bcap_dev->buffer_queue))
|
|
|
- return -EBUSY;
|
|
|
-
|
|
|
- ret = v4l2_subdev_call(bcap_dev->sd, video, s_std, std);
|
|
|
- if (ret < 0)
|
|
|
- return ret;
|
|
|
-
|
|
|
- bcap_dev->std = std;
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-static int bcap_enum_dv_timings(struct file *file, void *priv,
|
|
|
- struct v4l2_enum_dv_timings *timings)
|
|
|
-{
|
|
|
- struct bcap_device *bcap_dev = video_drvdata(file);
|
|
|
- struct v4l2_input input;
|
|
|
-
|
|
|
- input = bcap_dev->cfg->inputs[bcap_dev->cur_input];
|
|
|
- if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS))
|
|
|
- return -ENODATA;
|
|
|
-
|
|
|
- timings->pad = 0;
|
|
|
-
|
|
|
- return v4l2_subdev_call(bcap_dev->sd, pad,
|
|
|
- enum_dv_timings, timings);
|
|
|
-}
|
|
|
-
|
|
|
-static int bcap_query_dv_timings(struct file *file, void *priv,
|
|
|
- struct v4l2_dv_timings *timings)
|
|
|
-{
|
|
|
- struct bcap_device *bcap_dev = video_drvdata(file);
|
|
|
- struct v4l2_input input;
|
|
|
-
|
|
|
- input = bcap_dev->cfg->inputs[bcap_dev->cur_input];
|
|
|
- if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS))
|
|
|
- return -ENODATA;
|
|
|
-
|
|
|
- return v4l2_subdev_call(bcap_dev->sd, video,
|
|
|
- query_dv_timings, timings);
|
|
|
-}
|
|
|
-
|
|
|
-static int bcap_g_dv_timings(struct file *file, void *priv,
|
|
|
- struct v4l2_dv_timings *timings)
|
|
|
-{
|
|
|
- struct bcap_device *bcap_dev = video_drvdata(file);
|
|
|
- struct v4l2_input input;
|
|
|
-
|
|
|
- input = bcap_dev->cfg->inputs[bcap_dev->cur_input];
|
|
|
- if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS))
|
|
|
- return -ENODATA;
|
|
|
-
|
|
|
- *timings = bcap_dev->dv_timings;
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-static int bcap_s_dv_timings(struct file *file, void *priv,
|
|
|
- struct v4l2_dv_timings *timings)
|
|
|
-{
|
|
|
- struct bcap_device *bcap_dev = video_drvdata(file);
|
|
|
- struct v4l2_input input;
|
|
|
- int ret;
|
|
|
-
|
|
|
- input = bcap_dev->cfg->inputs[bcap_dev->cur_input];
|
|
|
- if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS))
|
|
|
- return -ENODATA;
|
|
|
-
|
|
|
- if (vb2_is_busy(&bcap_dev->buffer_queue))
|
|
|
- return -EBUSY;
|
|
|
-
|
|
|
- ret = v4l2_subdev_call(bcap_dev->sd, video, s_dv_timings, timings);
|
|
|
- if (ret < 0)
|
|
|
- return ret;
|
|
|
-
|
|
|
- bcap_dev->dv_timings = *timings;
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-static int bcap_enum_input(struct file *file, void *priv,
|
|
|
- struct v4l2_input *input)
|
|
|
-{
|
|
|
- struct bcap_device *bcap_dev = video_drvdata(file);
|
|
|
- struct bfin_capture_config *config = bcap_dev->cfg;
|
|
|
- int ret;
|
|
|
- u32 status;
|
|
|
-
|
|
|
- if (input->index >= config->num_inputs)
|
|
|
- return -EINVAL;
|
|
|
-
|
|
|
- *input = config->inputs[input->index];
|
|
|
- /* get input status */
|
|
|
- ret = v4l2_subdev_call(bcap_dev->sd, video, g_input_status, &status);
|
|
|
- if (!ret)
|
|
|
- input->status = status;
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-static int bcap_g_input(struct file *file, void *priv, unsigned int *index)
|
|
|
-{
|
|
|
- struct bcap_device *bcap_dev = video_drvdata(file);
|
|
|
-
|
|
|
- *index = bcap_dev->cur_input;
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-static int bcap_s_input(struct file *file, void *priv, unsigned int index)
|
|
|
-{
|
|
|
- struct bcap_device *bcap_dev = video_drvdata(file);
|
|
|
- struct bfin_capture_config *config = bcap_dev->cfg;
|
|
|
- struct bcap_route *route;
|
|
|
- int ret;
|
|
|
-
|
|
|
- if (vb2_is_busy(&bcap_dev->buffer_queue))
|
|
|
- return -EBUSY;
|
|
|
-
|
|
|
- if (index >= config->num_inputs)
|
|
|
- return -EINVAL;
|
|
|
-
|
|
|
- route = &config->routes[index];
|
|
|
- ret = v4l2_subdev_call(bcap_dev->sd, video, s_routing,
|
|
|
- route->input, route->output, 0);
|
|
|
- if ((ret < 0) && (ret != -ENOIOCTLCMD)) {
|
|
|
- v4l2_err(&bcap_dev->v4l2_dev, "Failed to set input\n");
|
|
|
- return ret;
|
|
|
- }
|
|
|
- bcap_dev->cur_input = index;
|
|
|
- /* if this route has specific config, update ppi control */
|
|
|
- if (route->ppi_control)
|
|
|
- config->ppi_control = route->ppi_control;
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-static int bcap_try_format(struct bcap_device *bcap,
|
|
|
- struct v4l2_pix_format *pixfmt,
|
|
|
- struct bcap_format *bcap_fmt)
|
|
|
-{
|
|
|
- struct bcap_format *sf = bcap->sensor_formats;
|
|
|
- struct bcap_format *fmt = NULL;
|
|
|
- struct v4l2_subdev_pad_config pad_cfg;
|
|
|
- struct v4l2_subdev_format format = {
|
|
|
- .which = V4L2_SUBDEV_FORMAT_TRY,
|
|
|
- };
|
|
|
- int ret, i;
|
|
|
-
|
|
|
- for (i = 0; i < bcap->num_sensor_formats; i++) {
|
|
|
- fmt = &sf[i];
|
|
|
- if (pixfmt->pixelformat == fmt->pixelformat)
|
|
|
- break;
|
|
|
- }
|
|
|
- if (i == bcap->num_sensor_formats)
|
|
|
- fmt = &sf[0];
|
|
|
-
|
|
|
- v4l2_fill_mbus_format(&format.format, pixfmt, fmt->mbus_code);
|
|
|
- ret = v4l2_subdev_call(bcap->sd, pad, set_fmt, &pad_cfg,
|
|
|
- &format);
|
|
|
- if (ret < 0)
|
|
|
- return ret;
|
|
|
- v4l2_fill_pix_format(pixfmt, &format.format);
|
|
|
- if (bcap_fmt) {
|
|
|
- for (i = 0; i < bcap->num_sensor_formats; i++) {
|
|
|
- fmt = &sf[i];
|
|
|
- if (format.format.code == fmt->mbus_code)
|
|
|
- break;
|
|
|
- }
|
|
|
- *bcap_fmt = *fmt;
|
|
|
- }
|
|
|
- pixfmt->bytesperline = pixfmt->width * fmt->bpp / 8;
|
|
|
- pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height;
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-static int bcap_enum_fmt_vid_cap(struct file *file, void *priv,
|
|
|
- struct v4l2_fmtdesc *fmt)
|
|
|
-{
|
|
|
- struct bcap_device *bcap_dev = video_drvdata(file);
|
|
|
- struct bcap_format *sf = bcap_dev->sensor_formats;
|
|
|
-
|
|
|
- if (fmt->index >= bcap_dev->num_sensor_formats)
|
|
|
- return -EINVAL;
|
|
|
-
|
|
|
- fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
- strlcpy(fmt->description,
|
|
|
- sf[fmt->index].desc,
|
|
|
- sizeof(fmt->description));
|
|
|
- fmt->pixelformat = sf[fmt->index].pixelformat;
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-static int bcap_try_fmt_vid_cap(struct file *file, void *priv,
|
|
|
- struct v4l2_format *fmt)
|
|
|
-{
|
|
|
- struct bcap_device *bcap_dev = video_drvdata(file);
|
|
|
- struct v4l2_pix_format *pixfmt = &fmt->fmt.pix;
|
|
|
-
|
|
|
- return bcap_try_format(bcap_dev, pixfmt, NULL);
|
|
|
-}
|
|
|
-
|
|
|
-static int bcap_g_fmt_vid_cap(struct file *file, void *priv,
|
|
|
- struct v4l2_format *fmt)
|
|
|
-{
|
|
|
- struct bcap_device *bcap_dev = video_drvdata(file);
|
|
|
-
|
|
|
- fmt->fmt.pix = bcap_dev->fmt;
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-static int bcap_s_fmt_vid_cap(struct file *file, void *priv,
|
|
|
- struct v4l2_format *fmt)
|
|
|
-{
|
|
|
- struct bcap_device *bcap_dev = video_drvdata(file);
|
|
|
- struct v4l2_subdev_format format = {
|
|
|
- .which = V4L2_SUBDEV_FORMAT_ACTIVE,
|
|
|
- };
|
|
|
- struct bcap_format bcap_fmt;
|
|
|
- struct v4l2_pix_format *pixfmt = &fmt->fmt.pix;
|
|
|
- int ret;
|
|
|
-
|
|
|
- if (vb2_is_busy(&bcap_dev->buffer_queue))
|
|
|
- return -EBUSY;
|
|
|
-
|
|
|
- /* see if format works */
|
|
|
- ret = bcap_try_format(bcap_dev, pixfmt, &bcap_fmt);
|
|
|
- if (ret < 0)
|
|
|
- return ret;
|
|
|
-
|
|
|
- v4l2_fill_mbus_format(&format.format, pixfmt, bcap_fmt.mbus_code);
|
|
|
- ret = v4l2_subdev_call(bcap_dev->sd, pad, set_fmt, NULL, &format);
|
|
|
- if (ret < 0)
|
|
|
- return ret;
|
|
|
- bcap_dev->fmt = *pixfmt;
|
|
|
- bcap_dev->bpp = bcap_fmt.bpp;
|
|
|
- bcap_dev->dlen = bcap_fmt.dlen;
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-static int bcap_querycap(struct file *file, void *priv,
|
|
|
- struct v4l2_capability *cap)
|
|
|
-{
|
|
|
- struct bcap_device *bcap_dev = video_drvdata(file);
|
|
|
-
|
|
|
- cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
|
|
|
- cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
|
|
|
- strlcpy(cap->driver, CAPTURE_DRV_NAME, sizeof(cap->driver));
|
|
|
- strlcpy(cap->bus_info, "Blackfin Platform", sizeof(cap->bus_info));
|
|
|
- strlcpy(cap->card, bcap_dev->cfg->card_name, sizeof(cap->card));
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-static int bcap_g_parm(struct file *file, void *fh,
|
|
|
- struct v4l2_streamparm *a)
|
|
|
-{
|
|
|
- struct bcap_device *bcap_dev = video_drvdata(file);
|
|
|
-
|
|
|
- if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
|
- return -EINVAL;
|
|
|
- return v4l2_subdev_call(bcap_dev->sd, video, g_parm, a);
|
|
|
-}
|
|
|
-
|
|
|
-static int bcap_s_parm(struct file *file, void *fh,
|
|
|
- struct v4l2_streamparm *a)
|
|
|
-{
|
|
|
- struct bcap_device *bcap_dev = video_drvdata(file);
|
|
|
-
|
|
|
- if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
|
- return -EINVAL;
|
|
|
- return v4l2_subdev_call(bcap_dev->sd, video, s_parm, a);
|
|
|
-}
|
|
|
-
|
|
|
-static int bcap_log_status(struct file *file, void *priv)
|
|
|
-{
|
|
|
- struct bcap_device *bcap_dev = video_drvdata(file);
|
|
|
- /* status for sub devices */
|
|
|
- v4l2_device_call_all(&bcap_dev->v4l2_dev, 0, core, log_status);
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-static const struct v4l2_ioctl_ops bcap_ioctl_ops = {
|
|
|
- .vidioc_querycap = bcap_querycap,
|
|
|
- .vidioc_g_fmt_vid_cap = bcap_g_fmt_vid_cap,
|
|
|
- .vidioc_enum_fmt_vid_cap = bcap_enum_fmt_vid_cap,
|
|
|
- .vidioc_s_fmt_vid_cap = bcap_s_fmt_vid_cap,
|
|
|
- .vidioc_try_fmt_vid_cap = bcap_try_fmt_vid_cap,
|
|
|
- .vidioc_enum_input = bcap_enum_input,
|
|
|
- .vidioc_g_input = bcap_g_input,
|
|
|
- .vidioc_s_input = bcap_s_input,
|
|
|
- .vidioc_querystd = bcap_querystd,
|
|
|
- .vidioc_s_std = bcap_s_std,
|
|
|
- .vidioc_g_std = bcap_g_std,
|
|
|
- .vidioc_s_dv_timings = bcap_s_dv_timings,
|
|
|
- .vidioc_g_dv_timings = bcap_g_dv_timings,
|
|
|
- .vidioc_query_dv_timings = bcap_query_dv_timings,
|
|
|
- .vidioc_enum_dv_timings = bcap_enum_dv_timings,
|
|
|
- .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_g_parm = bcap_g_parm,
|
|
|
- .vidioc_s_parm = bcap_s_parm,
|
|
|
- .vidioc_log_status = bcap_log_status,
|
|
|
-};
|
|
|
-
|
|
|
-static const struct v4l2_file_operations bcap_fops = {
|
|
|
- .owner = THIS_MODULE,
|
|
|
- .open = v4l2_fh_open,
|
|
|
- .release = vb2_fop_release,
|
|
|
- .unlocked_ioctl = video_ioctl2,
|
|
|
- .mmap = vb2_fop_mmap,
|
|
|
-#ifndef CONFIG_MMU
|
|
|
- .get_unmapped_area = vb2_fop_get_unmapped_area,
|
|
|
-#endif
|
|
|
- .poll = vb2_fop_poll
|
|
|
-};
|
|
|
-
|
|
|
-static int bcap_probe(struct platform_device *pdev)
|
|
|
-{
|
|
|
- struct bcap_device *bcap_dev;
|
|
|
- struct video_device *vfd;
|
|
|
- struct i2c_adapter *i2c_adap;
|
|
|
- struct bfin_capture_config *config;
|
|
|
- struct vb2_queue *q;
|
|
|
- struct bcap_route *route;
|
|
|
- int ret;
|
|
|
-
|
|
|
- config = pdev->dev.platform_data;
|
|
|
- if (!config || !config->num_inputs) {
|
|
|
- v4l2_err(pdev->dev.driver, "Unable to get board config\n");
|
|
|
- return -ENODEV;
|
|
|
- }
|
|
|
-
|
|
|
- bcap_dev = kzalloc(sizeof(*bcap_dev), GFP_KERNEL);
|
|
|
- if (!bcap_dev)
|
|
|
- return -ENOMEM;
|
|
|
-
|
|
|
- bcap_dev->cfg = config;
|
|
|
-
|
|
|
- bcap_dev->ppi = ppi_create_instance(pdev, config->ppi_info);
|
|
|
- if (!bcap_dev->ppi) {
|
|
|
- v4l2_err(pdev->dev.driver, "Unable to create ppi\n");
|
|
|
- ret = -ENODEV;
|
|
|
- goto err_free_dev;
|
|
|
- }
|
|
|
- bcap_dev->ppi->priv = bcap_dev;
|
|
|
-
|
|
|
- vfd = &bcap_dev->video_dev;
|
|
|
- /* initialize field of video device */
|
|
|
- vfd->release = video_device_release_empty;
|
|
|
- vfd->fops = &bcap_fops;
|
|
|
- vfd->ioctl_ops = &bcap_ioctl_ops;
|
|
|
- vfd->tvnorms = 0;
|
|
|
- vfd->v4l2_dev = &bcap_dev->v4l2_dev;
|
|
|
- strncpy(vfd->name, CAPTURE_DRV_NAME, sizeof(vfd->name));
|
|
|
-
|
|
|
- ret = v4l2_device_register(&pdev->dev, &bcap_dev->v4l2_dev);
|
|
|
- if (ret) {
|
|
|
- v4l2_err(pdev->dev.driver,
|
|
|
- "Unable to register v4l2 device\n");
|
|
|
- goto err_free_ppi;
|
|
|
- }
|
|
|
- v4l2_info(&bcap_dev->v4l2_dev, "v4l2 device registered\n");
|
|
|
-
|
|
|
- bcap_dev->v4l2_dev.ctrl_handler = &bcap_dev->ctrl_handler;
|
|
|
- ret = v4l2_ctrl_handler_init(&bcap_dev->ctrl_handler, 0);
|
|
|
- if (ret) {
|
|
|
- v4l2_err(&bcap_dev->v4l2_dev,
|
|
|
- "Unable to init control handler\n");
|
|
|
- goto err_unreg_v4l2;
|
|
|
- }
|
|
|
-
|
|
|
- spin_lock_init(&bcap_dev->lock);
|
|
|
- /* initialize queue */
|
|
|
- q = &bcap_dev->buffer_queue;
|
|
|
- q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
- q->io_modes = VB2_MMAP | VB2_DMABUF;
|
|
|
- q->drv_priv = bcap_dev;
|
|
|
- q->buf_struct_size = sizeof(struct bcap_buffer);
|
|
|
- q->ops = &bcap_video_qops;
|
|
|
- q->mem_ops = &vb2_dma_contig_memops;
|
|
|
- q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
|
|
|
- q->lock = &bcap_dev->mutex;
|
|
|
- q->min_buffers_needed = 1;
|
|
|
- q->dev = &pdev->dev;
|
|
|
-
|
|
|
- ret = vb2_queue_init(q);
|
|
|
- if (ret)
|
|
|
- goto err_free_handler;
|
|
|
-
|
|
|
- mutex_init(&bcap_dev->mutex);
|
|
|
- init_completion(&bcap_dev->comp);
|
|
|
-
|
|
|
- /* init video dma queues */
|
|
|
- INIT_LIST_HEAD(&bcap_dev->dma_queue);
|
|
|
-
|
|
|
- vfd->lock = &bcap_dev->mutex;
|
|
|
- vfd->queue = q;
|
|
|
-
|
|
|
- /* register video device */
|
|
|
- ret = video_register_device(&bcap_dev->video_dev, VFL_TYPE_GRABBER, -1);
|
|
|
- if (ret) {
|
|
|
- v4l2_err(&bcap_dev->v4l2_dev,
|
|
|
- "Unable to register video device\n");
|
|
|
- goto err_free_handler;
|
|
|
- }
|
|
|
- video_set_drvdata(&bcap_dev->video_dev, bcap_dev);
|
|
|
- v4l2_info(&bcap_dev->v4l2_dev, "video device registered as: %s\n",
|
|
|
- video_device_node_name(vfd));
|
|
|
-
|
|
|
- /* load up the subdevice */
|
|
|
- i2c_adap = i2c_get_adapter(config->i2c_adapter_id);
|
|
|
- if (!i2c_adap) {
|
|
|
- v4l2_err(&bcap_dev->v4l2_dev,
|
|
|
- "Unable to find i2c adapter\n");
|
|
|
- ret = -ENODEV;
|
|
|
- goto err_unreg_vdev;
|
|
|
-
|
|
|
- }
|
|
|
- bcap_dev->sd = v4l2_i2c_new_subdev_board(&bcap_dev->v4l2_dev,
|
|
|
- i2c_adap,
|
|
|
- &config->board_info,
|
|
|
- NULL);
|
|
|
- if (bcap_dev->sd) {
|
|
|
- int i;
|
|
|
-
|
|
|
- /* update tvnorms from the sub devices */
|
|
|
- for (i = 0; i < config->num_inputs; i++)
|
|
|
- vfd->tvnorms |= config->inputs[i].std;
|
|
|
- } else {
|
|
|
- v4l2_err(&bcap_dev->v4l2_dev,
|
|
|
- "Unable to register sub device\n");
|
|
|
- ret = -ENODEV;
|
|
|
- goto err_unreg_vdev;
|
|
|
- }
|
|
|
-
|
|
|
- v4l2_info(&bcap_dev->v4l2_dev, "v4l2 sub device registered\n");
|
|
|
-
|
|
|
- /*
|
|
|
- * explicitly set input, otherwise some boards
|
|
|
- * may not work at the state as we expected
|
|
|
- */
|
|
|
- route = &config->routes[0];
|
|
|
- ret = v4l2_subdev_call(bcap_dev->sd, video, s_routing,
|
|
|
- route->input, route->output, 0);
|
|
|
- if ((ret < 0) && (ret != -ENOIOCTLCMD)) {
|
|
|
- v4l2_err(&bcap_dev->v4l2_dev, "Failed to set input\n");
|
|
|
- goto err_unreg_vdev;
|
|
|
- }
|
|
|
- bcap_dev->cur_input = 0;
|
|
|
- /* if this route has specific config, update ppi control */
|
|
|
- if (route->ppi_control)
|
|
|
- config->ppi_control = route->ppi_control;
|
|
|
-
|
|
|
- /* now we can probe the default state */
|
|
|
- if (config->inputs[0].capabilities & V4L2_IN_CAP_STD) {
|
|
|
- v4l2_std_id std;
|
|
|
- ret = v4l2_subdev_call(bcap_dev->sd, video, g_std, &std);
|
|
|
- if (ret) {
|
|
|
- v4l2_err(&bcap_dev->v4l2_dev,
|
|
|
- "Unable to get std\n");
|
|
|
- goto err_unreg_vdev;
|
|
|
- }
|
|
|
- bcap_dev->std = std;
|
|
|
- }
|
|
|
- if (config->inputs[0].capabilities & V4L2_IN_CAP_DV_TIMINGS) {
|
|
|
- struct v4l2_dv_timings dv_timings;
|
|
|
- ret = v4l2_subdev_call(bcap_dev->sd, video,
|
|
|
- g_dv_timings, &dv_timings);
|
|
|
- if (ret) {
|
|
|
- v4l2_err(&bcap_dev->v4l2_dev,
|
|
|
- "Unable to get dv timings\n");
|
|
|
- goto err_unreg_vdev;
|
|
|
- }
|
|
|
- bcap_dev->dv_timings = dv_timings;
|
|
|
- }
|
|
|
- ret = bcap_init_sensor_formats(bcap_dev);
|
|
|
- if (ret) {
|
|
|
- v4l2_err(&bcap_dev->v4l2_dev,
|
|
|
- "Unable to create sensor formats table\n");
|
|
|
- goto err_unreg_vdev;
|
|
|
- }
|
|
|
- return 0;
|
|
|
-err_unreg_vdev:
|
|
|
- video_unregister_device(&bcap_dev->video_dev);
|
|
|
-err_free_handler:
|
|
|
- v4l2_ctrl_handler_free(&bcap_dev->ctrl_handler);
|
|
|
-err_unreg_v4l2:
|
|
|
- v4l2_device_unregister(&bcap_dev->v4l2_dev);
|
|
|
-err_free_ppi:
|
|
|
- ppi_delete_instance(bcap_dev->ppi);
|
|
|
-err_free_dev:
|
|
|
- kfree(bcap_dev);
|
|
|
- return ret;
|
|
|
-}
|
|
|
-
|
|
|
-static int bcap_remove(struct platform_device *pdev)
|
|
|
-{
|
|
|
- struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
|
|
|
- struct bcap_device *bcap_dev = container_of(v4l2_dev,
|
|
|
- struct bcap_device, v4l2_dev);
|
|
|
-
|
|
|
- bcap_free_sensor_formats(bcap_dev);
|
|
|
- video_unregister_device(&bcap_dev->video_dev);
|
|
|
- v4l2_ctrl_handler_free(&bcap_dev->ctrl_handler);
|
|
|
- v4l2_device_unregister(v4l2_dev);
|
|
|
- ppi_delete_instance(bcap_dev->ppi);
|
|
|
- kfree(bcap_dev);
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-static struct platform_driver bcap_driver = {
|
|
|
- .driver = {
|
|
|
- .name = CAPTURE_DRV_NAME,
|
|
|
- },
|
|
|
- .probe = bcap_probe,
|
|
|
- .remove = bcap_remove,
|
|
|
-};
|
|
|
-module_platform_driver(bcap_driver);
|
|
|
-
|
|
|
-MODULE_DESCRIPTION("Analog Devices blackfin video capture driver");
|
|
|
-MODULE_AUTHOR("Scott Jiang <Scott.Jiang.Linux@gmail.com>");
|
|
|
-MODULE_LICENSE("GPL v2");
|