Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 1 | /* |
| 2 | * Analog Devices video capture driver |
| 3 | * |
| 4 | * Copyright (c) 2011 Analog Devices Inc. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 as |
| 8 | * published by the Free Software Foundation. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 18 | */ |
| 19 | |
| 20 | #include <linux/completion.h> |
| 21 | #include <linux/delay.h> |
| 22 | #include <linux/errno.h> |
| 23 | #include <linux/fs.h> |
| 24 | #include <linux/i2c.h> |
| 25 | #include <linux/init.h> |
| 26 | #include <linux/interrupt.h> |
| 27 | #include <linux/io.h> |
| 28 | #include <linux/mm.h> |
| 29 | #include <linux/module.h> |
| 30 | #include <linux/platform_device.h> |
| 31 | #include <linux/slab.h> |
| 32 | #include <linux/time.h> |
| 33 | #include <linux/types.h> |
| 34 | |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 35 | #include <media/v4l2-common.h> |
| 36 | #include <media/v4l2-ctrls.h> |
| 37 | #include <media/v4l2-device.h> |
| 38 | #include <media/v4l2-ioctl.h> |
| 39 | #include <media/videobuf2-dma-contig.h> |
| 40 | |
| 41 | #include <asm/dma.h> |
| 42 | |
| 43 | #include <media/blackfin/bfin_capture.h> |
| 44 | #include <media/blackfin/ppi.h> |
| 45 | |
| 46 | #define CAPTURE_DRV_NAME "bfin_capture" |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 47 | |
| 48 | struct bcap_format { |
| 49 | char *desc; |
| 50 | u32 pixelformat; |
Boris BREZILLON | 27ffaeb | 2014-11-10 14:28:31 -0300 | [diff] [blame] | 51 | u32 mbus_code; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 52 | int bpp; /* bits per pixel */ |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 53 | int dlen; /* data length for ppi in bits */ |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 54 | }; |
| 55 | |
| 56 | struct bcap_buffer { |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 57 | struct vb2_v4l2_buffer vb; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 58 | struct list_head list; |
| 59 | }; |
| 60 | |
| 61 | struct bcap_device { |
| 62 | /* capture device instance */ |
| 63 | struct v4l2_device v4l2_dev; |
| 64 | /* v4l2 control handler */ |
| 65 | struct v4l2_ctrl_handler ctrl_handler; |
| 66 | /* device node data */ |
Lad, Prabhakar | afb7a96 | 2015-03-08 11:40:53 -0300 | [diff] [blame] | 67 | struct video_device video_dev; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 68 | /* sub device instance */ |
| 69 | struct v4l2_subdev *sd; |
| 70 | /* capture config */ |
| 71 | struct bfin_capture_config *cfg; |
| 72 | /* ppi interface */ |
| 73 | struct ppi_if *ppi; |
| 74 | /* current input */ |
| 75 | unsigned int cur_input; |
| 76 | /* current selected standard */ |
| 77 | v4l2_std_id std; |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 78 | /* current selected dv_timings */ |
| 79 | struct v4l2_dv_timings dv_timings; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 80 | /* used to store pixel format */ |
| 81 | struct v4l2_pix_format fmt; |
| 82 | /* bits per pixel*/ |
| 83 | int bpp; |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 84 | /* data length for ppi in bits */ |
| 85 | int dlen; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 86 | /* used to store sensor supported format */ |
| 87 | struct bcap_format *sensor_formats; |
| 88 | /* number of sensor formats array */ |
| 89 | int num_sensor_formats; |
| 90 | /* pointing to current video buffer */ |
| 91 | struct bcap_buffer *cur_frm; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 92 | /* buffer queue used in videobuf2 */ |
| 93 | struct vb2_queue buffer_queue; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 94 | /* queue of filled frames */ |
| 95 | struct list_head dma_queue; |
| 96 | /* used in videobuf2 callback */ |
| 97 | spinlock_t lock; |
| 98 | /* used to access capture device */ |
| 99 | struct mutex mutex; |
| 100 | /* used to wait ppi to complete one transfer */ |
| 101 | struct completion comp; |
| 102 | /* prepare to stop */ |
| 103 | bool stop; |
Lad, Prabhakar | 9d490e5 | 2015-03-08 11:40:51 -0300 | [diff] [blame] | 104 | /* vb2 buffer sequence counter */ |
| 105 | unsigned sequence; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 106 | }; |
| 107 | |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 108 | static const struct bcap_format bcap_formats[] = { |
| 109 | { |
| 110 | .desc = "YCbCr 4:2:2 Interleaved UYVY", |
| 111 | .pixelformat = V4L2_PIX_FMT_UYVY, |
Boris BREZILLON | 27ffaeb | 2014-11-10 14:28:31 -0300 | [diff] [blame] | 112 | .mbus_code = MEDIA_BUS_FMT_UYVY8_2X8, |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 113 | .bpp = 16, |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 114 | .dlen = 8, |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 115 | }, |
| 116 | { |
| 117 | .desc = "YCbCr 4:2:2 Interleaved YUYV", |
| 118 | .pixelformat = V4L2_PIX_FMT_YUYV, |
Boris BREZILLON | 27ffaeb | 2014-11-10 14:28:31 -0300 | [diff] [blame] | 119 | .mbus_code = MEDIA_BUS_FMT_YUYV8_2X8, |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 120 | .bpp = 16, |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 121 | .dlen = 8, |
| 122 | }, |
| 123 | { |
| 124 | .desc = "YCbCr 4:2:2 Interleaved UYVY", |
| 125 | .pixelformat = V4L2_PIX_FMT_UYVY, |
Boris BREZILLON | 27ffaeb | 2014-11-10 14:28:31 -0300 | [diff] [blame] | 126 | .mbus_code = MEDIA_BUS_FMT_UYVY8_1X16, |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 127 | .bpp = 16, |
| 128 | .dlen = 16, |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 129 | }, |
| 130 | { |
| 131 | .desc = "RGB 565", |
| 132 | .pixelformat = V4L2_PIX_FMT_RGB565, |
Boris BREZILLON | 27ffaeb | 2014-11-10 14:28:31 -0300 | [diff] [blame] | 133 | .mbus_code = MEDIA_BUS_FMT_RGB565_2X8_LE, |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 134 | .bpp = 16, |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 135 | .dlen = 8, |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 136 | }, |
| 137 | { |
| 138 | .desc = "RGB 444", |
| 139 | .pixelformat = V4L2_PIX_FMT_RGB444, |
Boris BREZILLON | 27ffaeb | 2014-11-10 14:28:31 -0300 | [diff] [blame] | 140 | .mbus_code = MEDIA_BUS_FMT_RGB444_2X8_PADHI_LE, |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 141 | .bpp = 16, |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 142 | .dlen = 8, |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 143 | }, |
| 144 | |
| 145 | }; |
| 146 | #define BCAP_MAX_FMTS ARRAY_SIZE(bcap_formats) |
| 147 | |
| 148 | static irqreturn_t bcap_isr(int irq, void *dev_id); |
| 149 | |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 150 | static struct bcap_buffer *to_bcap_vb(struct vb2_v4l2_buffer *vb) |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 151 | { |
| 152 | return container_of(vb, struct bcap_buffer, vb); |
| 153 | } |
| 154 | |
| 155 | static int bcap_init_sensor_formats(struct bcap_device *bcap_dev) |
| 156 | { |
Hans Verkuil | ebcff5f | 2015-04-09 04:01:33 -0300 | [diff] [blame] | 157 | struct v4l2_subdev_mbus_code_enum code = { |
| 158 | .which = V4L2_SUBDEV_FORMAT_ACTIVE, |
| 159 | }; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 160 | struct bcap_format *sf; |
| 161 | unsigned int num_formats = 0; |
| 162 | int i, j; |
| 163 | |
Hans Verkuil | ebcff5f | 2015-04-09 04:01:33 -0300 | [diff] [blame] | 164 | while (!v4l2_subdev_call(bcap_dev->sd, pad, |
| 165 | enum_mbus_code, NULL, &code)) { |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 166 | num_formats++; |
Hans Verkuil | ebcff5f | 2015-04-09 04:01:33 -0300 | [diff] [blame] | 167 | code.index++; |
| 168 | } |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 169 | if (!num_formats) |
| 170 | return -ENXIO; |
| 171 | |
| 172 | sf = kzalloc(num_formats * sizeof(*sf), GFP_KERNEL); |
| 173 | if (!sf) |
| 174 | return -ENOMEM; |
| 175 | |
| 176 | for (i = 0; i < num_formats; i++) { |
Hans Verkuil | ebcff5f | 2015-04-09 04:01:33 -0300 | [diff] [blame] | 177 | code.index = i; |
| 178 | v4l2_subdev_call(bcap_dev->sd, pad, |
| 179 | enum_mbus_code, NULL, &code); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 180 | for (j = 0; j < BCAP_MAX_FMTS; j++) |
Hans Verkuil | ebcff5f | 2015-04-09 04:01:33 -0300 | [diff] [blame] | 181 | if (code.code == bcap_formats[j].mbus_code) |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 182 | break; |
| 183 | if (j == BCAP_MAX_FMTS) { |
| 184 | /* we don't allow this sensor working with our bridge */ |
| 185 | kfree(sf); |
| 186 | return -EINVAL; |
| 187 | } |
| 188 | sf[i] = bcap_formats[j]; |
| 189 | } |
| 190 | bcap_dev->sensor_formats = sf; |
| 191 | bcap_dev->num_sensor_formats = num_formats; |
| 192 | return 0; |
| 193 | } |
| 194 | |
| 195 | static void bcap_free_sensor_formats(struct bcap_device *bcap_dev) |
| 196 | { |
| 197 | bcap_dev->num_sensor_formats = 0; |
| 198 | kfree(bcap_dev->sensor_formats); |
| 199 | bcap_dev->sensor_formats = NULL; |
| 200 | } |
| 201 | |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 202 | static int bcap_queue_setup(struct vb2_queue *vq, |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 203 | unsigned int *nbuffers, unsigned int *nplanes, |
Hans Verkuil | 36c0f8b | 2016-04-15 09:15:05 -0300 | [diff] [blame^] | 204 | unsigned int sizes[], struct device *alloc_devs[]) |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 205 | { |
| 206 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vq); |
| 207 | |
Lad, Prabhakar | f314002 | 2015-03-08 11:40:41 -0300 | [diff] [blame] | 208 | if (vq->num_buffers + *nbuffers < 2) |
| 209 | *nbuffers = 2; |
Hans Verkuil | df9ecb0 | 2015-10-28 00:50:37 -0200 | [diff] [blame] | 210 | |
| 211 | if (*nplanes) |
| 212 | return sizes[0] < bcap_dev->fmt.sizeimage ? -EINVAL : 0; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 213 | |
| 214 | *nplanes = 1; |
Hans Verkuil | df9ecb0 | 2015-10-28 00:50:37 -0200 | [diff] [blame] | 215 | sizes[0] = bcap_dev->fmt.sizeimage; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 216 | |
| 217 | return 0; |
| 218 | } |
| 219 | |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 220 | static int bcap_buffer_prepare(struct vb2_buffer *vb) |
| 221 | { |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 222 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 223 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vb->vb2_queue); |
Lad, Prabhakar | cd3c38e | 2015-03-08 11:40:40 -0300 | [diff] [blame] | 224 | unsigned long size = bcap_dev->fmt.sizeimage; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 225 | |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 226 | if (vb2_plane_size(vb, 0) < size) { |
| 227 | v4l2_err(&bcap_dev->v4l2_dev, "buffer too small (%lu < %lu)\n", |
| 228 | vb2_plane_size(vb, 0), size); |
| 229 | return -EINVAL; |
| 230 | } |
Lad, Prabhakar | cd3c38e | 2015-03-08 11:40:40 -0300 | [diff] [blame] | 231 | vb2_set_plane_payload(vb, 0, size); |
| 232 | |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 233 | vbuf->field = bcap_dev->fmt.field; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 234 | |
| 235 | return 0; |
| 236 | } |
| 237 | |
| 238 | static void bcap_buffer_queue(struct vb2_buffer *vb) |
| 239 | { |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 240 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 241 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vb->vb2_queue); |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 242 | struct bcap_buffer *buf = to_bcap_vb(vbuf); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 243 | unsigned long flags; |
| 244 | |
| 245 | spin_lock_irqsave(&bcap_dev->lock, flags); |
| 246 | list_add_tail(&buf->list, &bcap_dev->dma_queue); |
| 247 | spin_unlock_irqrestore(&bcap_dev->lock, flags); |
| 248 | } |
| 249 | |
| 250 | static void bcap_buffer_cleanup(struct vb2_buffer *vb) |
| 251 | { |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 252 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 253 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vb->vb2_queue); |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 254 | struct bcap_buffer *buf = to_bcap_vb(vbuf); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 255 | unsigned long flags; |
| 256 | |
| 257 | spin_lock_irqsave(&bcap_dev->lock, flags); |
| 258 | list_del_init(&buf->list); |
| 259 | spin_unlock_irqrestore(&bcap_dev->lock, flags); |
| 260 | } |
| 261 | |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 262 | static int bcap_start_streaming(struct vb2_queue *vq, unsigned int count) |
| 263 | { |
| 264 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vq); |
| 265 | struct ppi_if *ppi = bcap_dev->ppi; |
Lad, Prabhakar | 6692871 | 2015-03-08 11:40:38 -0300 | [diff] [blame] | 266 | struct bcap_buffer *buf, *tmp; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 267 | struct ppi_params params; |
Lad, Prabhakar | d61233b | 2015-03-08 11:40:44 -0300 | [diff] [blame] | 268 | dma_addr_t addr; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 269 | int ret; |
| 270 | |
| 271 | /* enable streamon on the sub device */ |
| 272 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_stream, 1); |
| 273 | if (ret && (ret != -ENOIOCTLCMD)) { |
| 274 | v4l2_err(&bcap_dev->v4l2_dev, "stream on failed in subdev\n"); |
Lad, Prabhakar | 6692871 | 2015-03-08 11:40:38 -0300 | [diff] [blame] | 275 | goto err; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 276 | } |
| 277 | |
| 278 | /* set ppi params */ |
| 279 | params.width = bcap_dev->fmt.width; |
| 280 | params.height = bcap_dev->fmt.height; |
| 281 | params.bpp = bcap_dev->bpp; |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 282 | params.dlen = bcap_dev->dlen; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 283 | params.ppi_control = bcap_dev->cfg->ppi_control; |
| 284 | params.int_mask = bcap_dev->cfg->int_mask; |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 285 | if (bcap_dev->cfg->inputs[bcap_dev->cur_input].capabilities |
Hans Verkuil | a8451ed | 2013-02-15 15:12:01 -0300 | [diff] [blame] | 286 | & V4L2_IN_CAP_DV_TIMINGS) { |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 287 | struct v4l2_bt_timings *bt = &bcap_dev->dv_timings.bt; |
| 288 | |
| 289 | params.hdelay = bt->hsync + bt->hbackporch; |
| 290 | params.vdelay = bt->vsync + bt->vbackporch; |
Hans Verkuil | eacf8f9 | 2013-07-29 08:40:59 -0300 | [diff] [blame] | 291 | params.line = V4L2_DV_BT_FRAME_WIDTH(bt); |
| 292 | params.frame = V4L2_DV_BT_FRAME_HEIGHT(bt); |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 293 | } else if (bcap_dev->cfg->inputs[bcap_dev->cur_input].capabilities |
| 294 | & V4L2_IN_CAP_STD) { |
| 295 | params.hdelay = 0; |
| 296 | params.vdelay = 0; |
| 297 | if (bcap_dev->std & V4L2_STD_525_60) { |
| 298 | params.line = 858; |
| 299 | params.frame = 525; |
| 300 | } else { |
| 301 | params.line = 864; |
| 302 | params.frame = 625; |
| 303 | } |
| 304 | } else { |
| 305 | params.hdelay = 0; |
| 306 | params.vdelay = 0; |
| 307 | params.line = params.width + bcap_dev->cfg->blank_pixels; |
| 308 | params.frame = params.height; |
| 309 | } |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 310 | ret = ppi->ops->set_params(ppi, ¶ms); |
| 311 | if (ret < 0) { |
| 312 | v4l2_err(&bcap_dev->v4l2_dev, |
| 313 | "Error in setting ppi params\n"); |
Lad, Prabhakar | 6692871 | 2015-03-08 11:40:38 -0300 | [diff] [blame] | 314 | goto err; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 315 | } |
| 316 | |
| 317 | /* attach ppi DMA irq handler */ |
| 318 | ret = ppi->ops->attach_irq(ppi, bcap_isr); |
| 319 | if (ret < 0) { |
| 320 | v4l2_err(&bcap_dev->v4l2_dev, |
| 321 | "Error in attaching interrupt handler\n"); |
Lad, Prabhakar | 6692871 | 2015-03-08 11:40:38 -0300 | [diff] [blame] | 322 | goto err; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 323 | } |
| 324 | |
Lad, Prabhakar | 9d490e5 | 2015-03-08 11:40:51 -0300 | [diff] [blame] | 325 | bcap_dev->sequence = 0; |
| 326 | |
Wolfram Sang | 16735d0 | 2013-11-14 14:32:02 -0800 | [diff] [blame] | 327 | reinit_completion(&bcap_dev->comp); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 328 | bcap_dev->stop = false; |
Lad, Prabhakar | 6692871 | 2015-03-08 11:40:38 -0300 | [diff] [blame] | 329 | |
Lad, Prabhakar | d61233b | 2015-03-08 11:40:44 -0300 | [diff] [blame] | 330 | /* get the next frame from the dma queue */ |
| 331 | bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next, |
| 332 | struct bcap_buffer, list); |
| 333 | /* remove buffer from the dma queue */ |
| 334 | list_del_init(&bcap_dev->cur_frm->list); |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 335 | addr = vb2_dma_contig_plane_dma_addr(&bcap_dev->cur_frm->vb.vb2_buf, |
| 336 | 0); |
Lad, Prabhakar | d61233b | 2015-03-08 11:40:44 -0300 | [diff] [blame] | 337 | /* update DMA address */ |
| 338 | ppi->ops->update_addr(ppi, (unsigned long)addr); |
| 339 | /* enable ppi */ |
| 340 | ppi->ops->start(ppi); |
| 341 | |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 342 | return 0; |
Lad, Prabhakar | 6692871 | 2015-03-08 11:40:38 -0300 | [diff] [blame] | 343 | |
| 344 | err: |
| 345 | list_for_each_entry_safe(buf, tmp, &bcap_dev->dma_queue, list) { |
| 346 | list_del(&buf->list); |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 347 | vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_QUEUED); |
Lad, Prabhakar | 6692871 | 2015-03-08 11:40:38 -0300 | [diff] [blame] | 348 | } |
| 349 | |
| 350 | return ret; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 351 | } |
| 352 | |
Hans Verkuil | e37559b | 2014-04-17 02:47:21 -0300 | [diff] [blame] | 353 | static void bcap_stop_streaming(struct vb2_queue *vq) |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 354 | { |
| 355 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vq); |
| 356 | struct ppi_if *ppi = bcap_dev->ppi; |
| 357 | int ret; |
| 358 | |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 359 | bcap_dev->stop = true; |
| 360 | wait_for_completion(&bcap_dev->comp); |
| 361 | ppi->ops->stop(ppi); |
| 362 | ppi->ops->detach_irq(ppi); |
| 363 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_stream, 0); |
| 364 | if (ret && (ret != -ENOIOCTLCMD)) |
| 365 | v4l2_err(&bcap_dev->v4l2_dev, |
| 366 | "stream off failed in subdev\n"); |
| 367 | |
| 368 | /* release all active buffers */ |
Lad, Prabhakar | 2bf34b2 | 2015-03-08 11:40:45 -0300 | [diff] [blame] | 369 | if (bcap_dev->cur_frm) |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 370 | vb2_buffer_done(&bcap_dev->cur_frm->vb.vb2_buf, |
| 371 | VB2_BUF_STATE_ERROR); |
Lad, Prabhakar | 2bf34b2 | 2015-03-08 11:40:45 -0300 | [diff] [blame] | 372 | |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 373 | while (!list_empty(&bcap_dev->dma_queue)) { |
Scott Jiang | d78a488 | 2013-01-18 17:09:48 -0300 | [diff] [blame] | 374 | bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next, |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 375 | struct bcap_buffer, list); |
Sonic Zhang | 7ba3c21 | 2014-07-23 06:57:15 -0300 | [diff] [blame] | 376 | list_del_init(&bcap_dev->cur_frm->list); |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 377 | vb2_buffer_done(&bcap_dev->cur_frm->vb.vb2_buf, |
| 378 | VB2_BUF_STATE_ERROR); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 379 | } |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 380 | } |
| 381 | |
| 382 | static struct vb2_ops bcap_video_qops = { |
| 383 | .queue_setup = bcap_queue_setup, |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 384 | .buf_prepare = bcap_buffer_prepare, |
| 385 | .buf_cleanup = bcap_buffer_cleanup, |
| 386 | .buf_queue = bcap_buffer_queue, |
Prabhakar Lad | 4d655ca | 2014-11-26 19:42:31 -0300 | [diff] [blame] | 387 | .wait_prepare = vb2_ops_wait_prepare, |
| 388 | .wait_finish = vb2_ops_wait_finish, |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 389 | .start_streaming = bcap_start_streaming, |
| 390 | .stop_streaming = bcap_stop_streaming, |
| 391 | }; |
| 392 | |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 393 | static irqreturn_t bcap_isr(int irq, void *dev_id) |
| 394 | { |
| 395 | struct ppi_if *ppi = dev_id; |
| 396 | struct bcap_device *bcap_dev = ppi->priv; |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 397 | struct vb2_v4l2_buffer *vbuf = &bcap_dev->cur_frm->vb; |
| 398 | struct vb2_buffer *vb = &vbuf->vb2_buf; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 399 | dma_addr_t addr; |
| 400 | |
| 401 | spin_lock(&bcap_dev->lock); |
| 402 | |
Scott Jiang | d78a488 | 2013-01-18 17:09:48 -0300 | [diff] [blame] | 403 | if (!list_empty(&bcap_dev->dma_queue)) { |
Junghak Sung | d6dd645 | 2015-11-03 08:16:37 -0200 | [diff] [blame] | 404 | vb->timestamp = ktime_get_ns(); |
Scott Jiang | d78a488 | 2013-01-18 17:09:48 -0300 | [diff] [blame] | 405 | if (ppi->err) { |
| 406 | vb2_buffer_done(vb, VB2_BUF_STATE_ERROR); |
| 407 | ppi->err = false; |
| 408 | } else { |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 409 | vbuf->sequence = bcap_dev->sequence++; |
Scott Jiang | d78a488 | 2013-01-18 17:09:48 -0300 | [diff] [blame] | 410 | vb2_buffer_done(vb, VB2_BUF_STATE_DONE); |
| 411 | } |
| 412 | bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next, |
| 413 | struct bcap_buffer, list); |
Sonic Zhang | 7ba3c21 | 2014-07-23 06:57:15 -0300 | [diff] [blame] | 414 | list_del_init(&bcap_dev->cur_frm->list); |
Scott Jiang | d78a488 | 2013-01-18 17:09:48 -0300 | [diff] [blame] | 415 | } else { |
| 416 | /* clear error flag, we will get a new frame */ |
| 417 | if (ppi->err) |
| 418 | ppi->err = false; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 419 | } |
| 420 | |
| 421 | ppi->ops->stop(ppi); |
| 422 | |
| 423 | if (bcap_dev->stop) { |
| 424 | complete(&bcap_dev->comp); |
| 425 | } else { |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 426 | addr = vb2_dma_contig_plane_dma_addr( |
| 427 | &bcap_dev->cur_frm->vb.vb2_buf, 0); |
Scott Jiang | d78a488 | 2013-01-18 17:09:48 -0300 | [diff] [blame] | 428 | ppi->ops->update_addr(ppi, (unsigned long)addr); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 429 | ppi->ops->start(ppi); |
| 430 | } |
| 431 | |
| 432 | spin_unlock(&bcap_dev->lock); |
| 433 | |
| 434 | return IRQ_HANDLED; |
| 435 | } |
| 436 | |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 437 | static int bcap_querystd(struct file *file, void *priv, v4l2_std_id *std) |
| 438 | { |
| 439 | struct bcap_device *bcap_dev = video_drvdata(file); |
Lad, Prabhakar | fe00b71 | 2015-03-08 11:40:46 -0300 | [diff] [blame] | 440 | struct v4l2_input input; |
| 441 | |
| 442 | input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; |
| 443 | if (!(input.capabilities & V4L2_IN_CAP_STD)) |
| 444 | return -ENODATA; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 445 | |
| 446 | return v4l2_subdev_call(bcap_dev->sd, video, querystd, std); |
| 447 | } |
| 448 | |
| 449 | static int bcap_g_std(struct file *file, void *priv, v4l2_std_id *std) |
| 450 | { |
| 451 | struct bcap_device *bcap_dev = video_drvdata(file); |
Lad, Prabhakar | fe00b71 | 2015-03-08 11:40:46 -0300 | [diff] [blame] | 452 | struct v4l2_input input; |
| 453 | |
| 454 | input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; |
| 455 | if (!(input.capabilities & V4L2_IN_CAP_STD)) |
| 456 | return -ENODATA; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 457 | |
| 458 | *std = bcap_dev->std; |
| 459 | return 0; |
| 460 | } |
| 461 | |
Hans Verkuil | 314527a | 2013-03-15 06:10:40 -0300 | [diff] [blame] | 462 | static int bcap_s_std(struct file *file, void *priv, v4l2_std_id std) |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 463 | { |
| 464 | struct bcap_device *bcap_dev = video_drvdata(file); |
Lad, Prabhakar | fe00b71 | 2015-03-08 11:40:46 -0300 | [diff] [blame] | 465 | struct v4l2_input input; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 466 | int ret; |
| 467 | |
Lad, Prabhakar | fe00b71 | 2015-03-08 11:40:46 -0300 | [diff] [blame] | 468 | input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; |
| 469 | if (!(input.capabilities & V4L2_IN_CAP_STD)) |
| 470 | return -ENODATA; |
| 471 | |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 472 | if (vb2_is_busy(&bcap_dev->buffer_queue)) |
| 473 | return -EBUSY; |
| 474 | |
Laurent Pinchart | 8774bed | 2014-04-28 16:53:01 -0300 | [diff] [blame] | 475 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_std, std); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 476 | if (ret < 0) |
| 477 | return ret; |
| 478 | |
Hans Verkuil | 314527a | 2013-03-15 06:10:40 -0300 | [diff] [blame] | 479 | bcap_dev->std = std; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 480 | return 0; |
| 481 | } |
| 482 | |
Scott Jiang | ead156c | 2013-04-12 19:52:59 -0300 | [diff] [blame] | 483 | static int bcap_enum_dv_timings(struct file *file, void *priv, |
| 484 | struct v4l2_enum_dv_timings *timings) |
| 485 | { |
| 486 | struct bcap_device *bcap_dev = video_drvdata(file); |
Lad, Prabhakar | 116a648 | 2015-03-08 11:40:47 -0300 | [diff] [blame] | 487 | struct v4l2_input input; |
| 488 | |
| 489 | input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; |
| 490 | if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS)) |
| 491 | return -ENODATA; |
Scott Jiang | ead156c | 2013-04-12 19:52:59 -0300 | [diff] [blame] | 492 | |
Laurent Pinchart | f1f8e43 | 2014-01-31 09:04:19 -0300 | [diff] [blame] | 493 | timings->pad = 0; |
| 494 | |
| 495 | return v4l2_subdev_call(bcap_dev->sd, pad, |
Scott Jiang | ead156c | 2013-04-12 19:52:59 -0300 | [diff] [blame] | 496 | enum_dv_timings, timings); |
| 497 | } |
| 498 | |
| 499 | static int bcap_query_dv_timings(struct file *file, void *priv, |
| 500 | struct v4l2_dv_timings *timings) |
| 501 | { |
| 502 | struct bcap_device *bcap_dev = video_drvdata(file); |
Lad, Prabhakar | 116a648 | 2015-03-08 11:40:47 -0300 | [diff] [blame] | 503 | struct v4l2_input input; |
| 504 | |
| 505 | input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; |
| 506 | if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS)) |
| 507 | return -ENODATA; |
Scott Jiang | ead156c | 2013-04-12 19:52:59 -0300 | [diff] [blame] | 508 | |
| 509 | return v4l2_subdev_call(bcap_dev->sd, video, |
| 510 | query_dv_timings, timings); |
| 511 | } |
| 512 | |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 513 | static int bcap_g_dv_timings(struct file *file, void *priv, |
| 514 | struct v4l2_dv_timings *timings) |
| 515 | { |
| 516 | struct bcap_device *bcap_dev = video_drvdata(file); |
Lad, Prabhakar | 116a648 | 2015-03-08 11:40:47 -0300 | [diff] [blame] | 517 | struct v4l2_input input; |
| 518 | |
| 519 | input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; |
| 520 | if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS)) |
| 521 | return -ENODATA; |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 522 | |
Scott Jiang | ead156c | 2013-04-12 19:52:59 -0300 | [diff] [blame] | 523 | *timings = bcap_dev->dv_timings; |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 524 | return 0; |
| 525 | } |
| 526 | |
| 527 | static int bcap_s_dv_timings(struct file *file, void *priv, |
| 528 | struct v4l2_dv_timings *timings) |
| 529 | { |
| 530 | struct bcap_device *bcap_dev = video_drvdata(file); |
Lad, Prabhakar | 116a648 | 2015-03-08 11:40:47 -0300 | [diff] [blame] | 531 | struct v4l2_input input; |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 532 | int ret; |
Lad, Prabhakar | 116a648 | 2015-03-08 11:40:47 -0300 | [diff] [blame] | 533 | |
| 534 | input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; |
| 535 | if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS)) |
| 536 | return -ENODATA; |
| 537 | |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 538 | if (vb2_is_busy(&bcap_dev->buffer_queue)) |
| 539 | return -EBUSY; |
| 540 | |
| 541 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_dv_timings, timings); |
| 542 | if (ret < 0) |
| 543 | return ret; |
| 544 | |
| 545 | bcap_dev->dv_timings = *timings; |
| 546 | return 0; |
| 547 | } |
| 548 | |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 549 | static int bcap_enum_input(struct file *file, void *priv, |
| 550 | struct v4l2_input *input) |
| 551 | { |
| 552 | struct bcap_device *bcap_dev = video_drvdata(file); |
| 553 | struct bfin_capture_config *config = bcap_dev->cfg; |
| 554 | int ret; |
| 555 | u32 status; |
| 556 | |
| 557 | if (input->index >= config->num_inputs) |
| 558 | return -EINVAL; |
| 559 | |
| 560 | *input = config->inputs[input->index]; |
| 561 | /* get input status */ |
| 562 | ret = v4l2_subdev_call(bcap_dev->sd, video, g_input_status, &status); |
| 563 | if (!ret) |
| 564 | input->status = status; |
| 565 | return 0; |
| 566 | } |
| 567 | |
| 568 | static int bcap_g_input(struct file *file, void *priv, unsigned int *index) |
| 569 | { |
| 570 | struct bcap_device *bcap_dev = video_drvdata(file); |
| 571 | |
| 572 | *index = bcap_dev->cur_input; |
| 573 | return 0; |
| 574 | } |
| 575 | |
| 576 | static int bcap_s_input(struct file *file, void *priv, unsigned int index) |
| 577 | { |
| 578 | struct bcap_device *bcap_dev = video_drvdata(file); |
| 579 | struct bfin_capture_config *config = bcap_dev->cfg; |
| 580 | struct bcap_route *route; |
| 581 | int ret; |
| 582 | |
| 583 | if (vb2_is_busy(&bcap_dev->buffer_queue)) |
| 584 | return -EBUSY; |
| 585 | |
| 586 | if (index >= config->num_inputs) |
| 587 | return -EINVAL; |
| 588 | |
| 589 | route = &config->routes[index]; |
| 590 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_routing, |
| 591 | route->input, route->output, 0); |
| 592 | if ((ret < 0) && (ret != -ENOIOCTLCMD)) { |
| 593 | v4l2_err(&bcap_dev->v4l2_dev, "Failed to set input\n"); |
| 594 | return ret; |
| 595 | } |
| 596 | bcap_dev->cur_input = index; |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 597 | /* if this route has specific config, update ppi control */ |
| 598 | if (route->ppi_control) |
| 599 | config->ppi_control = route->ppi_control; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 600 | return 0; |
| 601 | } |
| 602 | |
| 603 | static int bcap_try_format(struct bcap_device *bcap, |
| 604 | struct v4l2_pix_format *pixfmt, |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 605 | struct bcap_format *bcap_fmt) |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 606 | { |
| 607 | struct bcap_format *sf = bcap->sensor_formats; |
| 608 | struct bcap_format *fmt = NULL; |
Hans Verkuil | 5eab498 | 2015-04-09 04:05:35 -0300 | [diff] [blame] | 609 | struct v4l2_subdev_pad_config pad_cfg; |
| 610 | struct v4l2_subdev_format format = { |
| 611 | .which = V4L2_SUBDEV_FORMAT_TRY, |
| 612 | }; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 613 | int ret, i; |
| 614 | |
| 615 | for (i = 0; i < bcap->num_sensor_formats; i++) { |
| 616 | fmt = &sf[i]; |
| 617 | if (pixfmt->pixelformat == fmt->pixelformat) |
| 618 | break; |
| 619 | } |
| 620 | if (i == bcap->num_sensor_formats) |
| 621 | fmt = &sf[0]; |
| 622 | |
Hans Verkuil | 5eab498 | 2015-04-09 04:05:35 -0300 | [diff] [blame] | 623 | v4l2_fill_mbus_format(&format.format, pixfmt, fmt->mbus_code); |
| 624 | ret = v4l2_subdev_call(bcap->sd, pad, set_fmt, &pad_cfg, |
| 625 | &format); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 626 | if (ret < 0) |
| 627 | return ret; |
Hans Verkuil | 5eab498 | 2015-04-09 04:05:35 -0300 | [diff] [blame] | 628 | v4l2_fill_pix_format(pixfmt, &format.format); |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 629 | if (bcap_fmt) { |
| 630 | for (i = 0; i < bcap->num_sensor_formats; i++) { |
| 631 | fmt = &sf[i]; |
Hans Verkuil | 5eab498 | 2015-04-09 04:05:35 -0300 | [diff] [blame] | 632 | if (format.format.code == fmt->mbus_code) |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 633 | break; |
| 634 | } |
| 635 | *bcap_fmt = *fmt; |
| 636 | } |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 637 | pixfmt->bytesperline = pixfmt->width * fmt->bpp / 8; |
| 638 | pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height; |
| 639 | return 0; |
| 640 | } |
| 641 | |
| 642 | static int bcap_enum_fmt_vid_cap(struct file *file, void *priv, |
| 643 | struct v4l2_fmtdesc *fmt) |
| 644 | { |
| 645 | struct bcap_device *bcap_dev = video_drvdata(file); |
| 646 | struct bcap_format *sf = bcap_dev->sensor_formats; |
| 647 | |
| 648 | if (fmt->index >= bcap_dev->num_sensor_formats) |
| 649 | return -EINVAL; |
| 650 | |
| 651 | fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 652 | strlcpy(fmt->description, |
| 653 | sf[fmt->index].desc, |
| 654 | sizeof(fmt->description)); |
| 655 | fmt->pixelformat = sf[fmt->index].pixelformat; |
| 656 | return 0; |
| 657 | } |
| 658 | |
| 659 | static int bcap_try_fmt_vid_cap(struct file *file, void *priv, |
| 660 | struct v4l2_format *fmt) |
| 661 | { |
| 662 | struct bcap_device *bcap_dev = video_drvdata(file); |
| 663 | struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; |
| 664 | |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 665 | return bcap_try_format(bcap_dev, pixfmt, NULL); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 666 | } |
| 667 | |
| 668 | static int bcap_g_fmt_vid_cap(struct file *file, void *priv, |
| 669 | struct v4l2_format *fmt) |
| 670 | { |
| 671 | struct bcap_device *bcap_dev = video_drvdata(file); |
| 672 | |
| 673 | fmt->fmt.pix = bcap_dev->fmt; |
| 674 | return 0; |
| 675 | } |
| 676 | |
| 677 | static int bcap_s_fmt_vid_cap(struct file *file, void *priv, |
| 678 | struct v4l2_format *fmt) |
| 679 | { |
| 680 | struct bcap_device *bcap_dev = video_drvdata(file); |
Hans Verkuil | ebf984b | 2015-04-09 04:05:59 -0300 | [diff] [blame] | 681 | struct v4l2_subdev_format format = { |
| 682 | .which = V4L2_SUBDEV_FORMAT_ACTIVE, |
| 683 | }; |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 684 | struct bcap_format bcap_fmt; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 685 | struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 686 | int ret; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 687 | |
| 688 | if (vb2_is_busy(&bcap_dev->buffer_queue)) |
| 689 | return -EBUSY; |
| 690 | |
| 691 | /* see if format works */ |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 692 | ret = bcap_try_format(bcap_dev, pixfmt, &bcap_fmt); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 693 | if (ret < 0) |
| 694 | return ret; |
| 695 | |
Hans Verkuil | ebf984b | 2015-04-09 04:05:59 -0300 | [diff] [blame] | 696 | v4l2_fill_mbus_format(&format.format, pixfmt, bcap_fmt.mbus_code); |
| 697 | ret = v4l2_subdev_call(bcap_dev->sd, pad, set_fmt, NULL, &format); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 698 | if (ret < 0) |
| 699 | return ret; |
| 700 | bcap_dev->fmt = *pixfmt; |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 701 | bcap_dev->bpp = bcap_fmt.bpp; |
| 702 | bcap_dev->dlen = bcap_fmt.dlen; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 703 | return 0; |
| 704 | } |
| 705 | |
| 706 | static int bcap_querycap(struct file *file, void *priv, |
| 707 | struct v4l2_capability *cap) |
| 708 | { |
| 709 | struct bcap_device *bcap_dev = video_drvdata(file); |
| 710 | |
Hans Verkuil | a020c74 | 2014-11-24 06:37:25 -0300 | [diff] [blame] | 711 | cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; |
| 712 | cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 713 | strlcpy(cap->driver, CAPTURE_DRV_NAME, sizeof(cap->driver)); |
| 714 | strlcpy(cap->bus_info, "Blackfin Platform", sizeof(cap->bus_info)); |
| 715 | strlcpy(cap->card, bcap_dev->cfg->card_name, sizeof(cap->card)); |
| 716 | return 0; |
| 717 | } |
| 718 | |
| 719 | static int bcap_g_parm(struct file *file, void *fh, |
| 720 | struct v4l2_streamparm *a) |
| 721 | { |
| 722 | struct bcap_device *bcap_dev = video_drvdata(file); |
| 723 | |
| 724 | if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 725 | return -EINVAL; |
| 726 | return v4l2_subdev_call(bcap_dev->sd, video, g_parm, a); |
| 727 | } |
| 728 | |
| 729 | static int bcap_s_parm(struct file *file, void *fh, |
| 730 | struct v4l2_streamparm *a) |
| 731 | { |
| 732 | struct bcap_device *bcap_dev = video_drvdata(file); |
| 733 | |
| 734 | if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 735 | return -EINVAL; |
| 736 | return v4l2_subdev_call(bcap_dev->sd, video, s_parm, a); |
| 737 | } |
| 738 | |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 739 | static int bcap_log_status(struct file *file, void *priv) |
| 740 | { |
| 741 | struct bcap_device *bcap_dev = video_drvdata(file); |
| 742 | /* status for sub devices */ |
| 743 | v4l2_device_call_all(&bcap_dev->v4l2_dev, 0, core, log_status); |
| 744 | return 0; |
| 745 | } |
| 746 | |
| 747 | static const struct v4l2_ioctl_ops bcap_ioctl_ops = { |
| 748 | .vidioc_querycap = bcap_querycap, |
| 749 | .vidioc_g_fmt_vid_cap = bcap_g_fmt_vid_cap, |
| 750 | .vidioc_enum_fmt_vid_cap = bcap_enum_fmt_vid_cap, |
| 751 | .vidioc_s_fmt_vid_cap = bcap_s_fmt_vid_cap, |
| 752 | .vidioc_try_fmt_vid_cap = bcap_try_fmt_vid_cap, |
| 753 | .vidioc_enum_input = bcap_enum_input, |
| 754 | .vidioc_g_input = bcap_g_input, |
| 755 | .vidioc_s_input = bcap_s_input, |
| 756 | .vidioc_querystd = bcap_querystd, |
| 757 | .vidioc_s_std = bcap_s_std, |
| 758 | .vidioc_g_std = bcap_g_std, |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 759 | .vidioc_s_dv_timings = bcap_s_dv_timings, |
| 760 | .vidioc_g_dv_timings = bcap_g_dv_timings, |
Scott Jiang | ead156c | 2013-04-12 19:52:59 -0300 | [diff] [blame] | 761 | .vidioc_query_dv_timings = bcap_query_dv_timings, |
| 762 | .vidioc_enum_dv_timings = bcap_enum_dv_timings, |
Lad, Prabhakar | d61233b | 2015-03-08 11:40:44 -0300 | [diff] [blame] | 763 | .vidioc_reqbufs = vb2_ioctl_reqbufs, |
Lad, Prabhakar | 8df229b | 2015-03-08 11:40:48 -0300 | [diff] [blame] | 764 | .vidioc_create_bufs = vb2_ioctl_create_bufs, |
Lad, Prabhakar | d61233b | 2015-03-08 11:40:44 -0300 | [diff] [blame] | 765 | .vidioc_querybuf = vb2_ioctl_querybuf, |
| 766 | .vidioc_qbuf = vb2_ioctl_qbuf, |
| 767 | .vidioc_dqbuf = vb2_ioctl_dqbuf, |
Lad, Prabhakar | 812447e | 2015-03-08 11:40:50 -0300 | [diff] [blame] | 768 | .vidioc_expbuf = vb2_ioctl_expbuf, |
Lad, Prabhakar | d61233b | 2015-03-08 11:40:44 -0300 | [diff] [blame] | 769 | .vidioc_streamon = vb2_ioctl_streamon, |
| 770 | .vidioc_streamoff = vb2_ioctl_streamoff, |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 771 | .vidioc_g_parm = bcap_g_parm, |
| 772 | .vidioc_s_parm = bcap_s_parm, |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 773 | .vidioc_log_status = bcap_log_status, |
| 774 | }; |
| 775 | |
| 776 | static struct v4l2_file_operations bcap_fops = { |
| 777 | .owner = THIS_MODULE, |
Lad, Prabhakar | f0e91c6 | 2015-03-08 11:40:43 -0300 | [diff] [blame] | 778 | .open = v4l2_fh_open, |
| 779 | .release = vb2_fop_release, |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 780 | .unlocked_ioctl = video_ioctl2, |
Lad, Prabhakar | 8fd05b7 | 2015-03-08 11:40:42 -0300 | [diff] [blame] | 781 | .mmap = vb2_fop_mmap, |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 782 | #ifndef CONFIG_MMU |
Lad, Prabhakar | 225ccaa | 2015-03-08 11:40:52 -0300 | [diff] [blame] | 783 | .get_unmapped_area = vb2_fop_get_unmapped_area, |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 784 | #endif |
Lad, Prabhakar | 8fd05b7 | 2015-03-08 11:40:42 -0300 | [diff] [blame] | 785 | .poll = vb2_fop_poll |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 786 | }; |
| 787 | |
Greg Kroah-Hartman | 4c62e97 | 2012-12-21 13:17:53 -0800 | [diff] [blame] | 788 | static int bcap_probe(struct platform_device *pdev) |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 789 | { |
| 790 | struct bcap_device *bcap_dev; |
| 791 | struct video_device *vfd; |
| 792 | struct i2c_adapter *i2c_adap; |
| 793 | struct bfin_capture_config *config; |
| 794 | struct vb2_queue *q; |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 795 | struct bcap_route *route; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 796 | int ret; |
| 797 | |
| 798 | config = pdev->dev.platform_data; |
Wei Yongjun | d9fdbef | 2013-05-13 04:52:16 -0300 | [diff] [blame] | 799 | if (!config || !config->num_inputs) { |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 800 | v4l2_err(pdev->dev.driver, "Unable to get board config\n"); |
| 801 | return -ENODEV; |
| 802 | } |
| 803 | |
| 804 | bcap_dev = kzalloc(sizeof(*bcap_dev), GFP_KERNEL); |
| 805 | if (!bcap_dev) { |
| 806 | v4l2_err(pdev->dev.driver, "Unable to alloc bcap_dev\n"); |
| 807 | return -ENOMEM; |
| 808 | } |
| 809 | |
| 810 | bcap_dev->cfg = config; |
| 811 | |
Sonic Zhang | f7d0e6d | 2014-07-23 06:57:14 -0300 | [diff] [blame] | 812 | bcap_dev->ppi = ppi_create_instance(pdev, config->ppi_info); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 813 | if (!bcap_dev->ppi) { |
| 814 | v4l2_err(pdev->dev.driver, "Unable to create ppi\n"); |
| 815 | ret = -ENODEV; |
| 816 | goto err_free_dev; |
| 817 | } |
| 818 | bcap_dev->ppi->priv = bcap_dev; |
| 819 | |
Lad, Prabhakar | afb7a96 | 2015-03-08 11:40:53 -0300 | [diff] [blame] | 820 | vfd = &bcap_dev->video_dev; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 821 | /* initialize field of video device */ |
Lad, Prabhakar | afb7a96 | 2015-03-08 11:40:53 -0300 | [diff] [blame] | 822 | vfd->release = video_device_release_empty; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 823 | vfd->fops = &bcap_fops; |
| 824 | vfd->ioctl_ops = &bcap_ioctl_ops; |
| 825 | vfd->tvnorms = 0; |
| 826 | vfd->v4l2_dev = &bcap_dev->v4l2_dev; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 827 | strncpy(vfd->name, CAPTURE_DRV_NAME, sizeof(vfd->name)); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 828 | |
| 829 | ret = v4l2_device_register(&pdev->dev, &bcap_dev->v4l2_dev); |
| 830 | if (ret) { |
| 831 | v4l2_err(pdev->dev.driver, |
| 832 | "Unable to register v4l2 device\n"); |
Hans Verkuil | 53ddcc6 | 2016-02-15 13:09:10 -0200 | [diff] [blame] | 833 | goto err_free_ppi; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 834 | } |
| 835 | v4l2_info(&bcap_dev->v4l2_dev, "v4l2 device registered\n"); |
| 836 | |
| 837 | bcap_dev->v4l2_dev.ctrl_handler = &bcap_dev->ctrl_handler; |
| 838 | ret = v4l2_ctrl_handler_init(&bcap_dev->ctrl_handler, 0); |
| 839 | if (ret) { |
| 840 | v4l2_err(&bcap_dev->v4l2_dev, |
| 841 | "Unable to init control handler\n"); |
| 842 | goto err_unreg_v4l2; |
| 843 | } |
| 844 | |
| 845 | spin_lock_init(&bcap_dev->lock); |
| 846 | /* initialize queue */ |
| 847 | q = &bcap_dev->buffer_queue; |
| 848 | q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
Lad, Prabhakar | 70753b5 | 2015-03-08 11:40:49 -0300 | [diff] [blame] | 849 | q->io_modes = VB2_MMAP | VB2_DMABUF; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 850 | q->drv_priv = bcap_dev; |
| 851 | q->buf_struct_size = sizeof(struct bcap_buffer); |
| 852 | q->ops = &bcap_video_qops; |
| 853 | q->mem_ops = &vb2_dma_contig_memops; |
Sakari Ailus | ade4868 | 2014-02-25 19:12:19 -0300 | [diff] [blame] | 854 | q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
Prabhakar Lad | 4d655ca | 2014-11-26 19:42:31 -0300 | [diff] [blame] | 855 | q->lock = &bcap_dev->mutex; |
Lad, Prabhakar | 5f65ca8 | 2015-03-08 11:40:39 -0300 | [diff] [blame] | 856 | q->min_buffers_needed = 1; |
Hans Verkuil | 53ddcc6 | 2016-02-15 13:09:10 -0200 | [diff] [blame] | 857 | q->dev = &pdev->dev; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 858 | |
Hans Verkuil | 20420f9 | 2013-06-20 16:28:15 -0300 | [diff] [blame] | 859 | ret = vb2_queue_init(q); |
| 860 | if (ret) |
| 861 | goto err_free_handler; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 862 | |
| 863 | mutex_init(&bcap_dev->mutex); |
| 864 | init_completion(&bcap_dev->comp); |
| 865 | |
| 866 | /* init video dma queues */ |
| 867 | INIT_LIST_HEAD(&bcap_dev->dma_queue); |
| 868 | |
| 869 | vfd->lock = &bcap_dev->mutex; |
Lad, Prabhakar | 8fd05b7 | 2015-03-08 11:40:42 -0300 | [diff] [blame] | 870 | vfd->queue = q; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 871 | |
| 872 | /* register video device */ |
Lad, Prabhakar | afb7a96 | 2015-03-08 11:40:53 -0300 | [diff] [blame] | 873 | ret = video_register_device(&bcap_dev->video_dev, VFL_TYPE_GRABBER, -1); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 874 | if (ret) { |
| 875 | v4l2_err(&bcap_dev->v4l2_dev, |
| 876 | "Unable to register video device\n"); |
| 877 | goto err_free_handler; |
| 878 | } |
Lad, Prabhakar | afb7a96 | 2015-03-08 11:40:53 -0300 | [diff] [blame] | 879 | video_set_drvdata(&bcap_dev->video_dev, bcap_dev); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 880 | v4l2_info(&bcap_dev->v4l2_dev, "video device registered as: %s\n", |
| 881 | video_device_node_name(vfd)); |
| 882 | |
| 883 | /* load up the subdevice */ |
| 884 | i2c_adap = i2c_get_adapter(config->i2c_adapter_id); |
| 885 | if (!i2c_adap) { |
| 886 | v4l2_err(&bcap_dev->v4l2_dev, |
| 887 | "Unable to find i2c adapter\n"); |
Peter Senna Tschudin | 150a136 | 2012-09-06 11:23:58 -0300 | [diff] [blame] | 888 | ret = -ENODEV; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 889 | goto err_unreg_vdev; |
| 890 | |
| 891 | } |
| 892 | bcap_dev->sd = v4l2_i2c_new_subdev_board(&bcap_dev->v4l2_dev, |
| 893 | i2c_adap, |
| 894 | &config->board_info, |
| 895 | NULL); |
| 896 | if (bcap_dev->sd) { |
| 897 | int i; |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 898 | |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 899 | /* update tvnorms from the sub devices */ |
| 900 | for (i = 0; i < config->num_inputs; i++) |
| 901 | vfd->tvnorms |= config->inputs[i].std; |
| 902 | } else { |
| 903 | v4l2_err(&bcap_dev->v4l2_dev, |
| 904 | "Unable to register sub device\n"); |
Wei Yongjun | d9fdbef | 2013-05-13 04:52:16 -0300 | [diff] [blame] | 905 | ret = -ENODEV; |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 906 | goto err_unreg_vdev; |
| 907 | } |
| 908 | |
| 909 | v4l2_info(&bcap_dev->v4l2_dev, "v4l2 sub device registered\n"); |
| 910 | |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 911 | /* |
| 912 | * explicitly set input, otherwise some boards |
| 913 | * may not work at the state as we expected |
| 914 | */ |
| 915 | route = &config->routes[0]; |
| 916 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_routing, |
| 917 | route->input, route->output, 0); |
| 918 | if ((ret < 0) && (ret != -ENOIOCTLCMD)) { |
| 919 | v4l2_err(&bcap_dev->v4l2_dev, "Failed to set input\n"); |
| 920 | goto err_unreg_vdev; |
| 921 | } |
| 922 | bcap_dev->cur_input = 0; |
| 923 | /* if this route has specific config, update ppi control */ |
| 924 | if (route->ppi_control) |
| 925 | config->ppi_control = route->ppi_control; |
| 926 | |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 927 | /* now we can probe the default state */ |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 928 | if (config->inputs[0].capabilities & V4L2_IN_CAP_STD) { |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 929 | v4l2_std_id std; |
Laurent Pinchart | 8774bed | 2014-04-28 16:53:01 -0300 | [diff] [blame] | 930 | ret = v4l2_subdev_call(bcap_dev->sd, video, g_std, &std); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 931 | if (ret) { |
| 932 | v4l2_err(&bcap_dev->v4l2_dev, |
| 933 | "Unable to get std\n"); |
| 934 | goto err_unreg_vdev; |
| 935 | } |
| 936 | bcap_dev->std = std; |
| 937 | } |
Hans Verkuil | a8451ed | 2013-02-15 15:12:01 -0300 | [diff] [blame] | 938 | if (config->inputs[0].capabilities & V4L2_IN_CAP_DV_TIMINGS) { |
Scott Jiang | 45b8259 | 2012-11-20 15:49:36 -0300 | [diff] [blame] | 939 | struct v4l2_dv_timings dv_timings; |
| 940 | ret = v4l2_subdev_call(bcap_dev->sd, video, |
| 941 | g_dv_timings, &dv_timings); |
| 942 | if (ret) { |
| 943 | v4l2_err(&bcap_dev->v4l2_dev, |
| 944 | "Unable to get dv timings\n"); |
| 945 | goto err_unreg_vdev; |
| 946 | } |
| 947 | bcap_dev->dv_timings = dv_timings; |
| 948 | } |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 949 | ret = bcap_init_sensor_formats(bcap_dev); |
| 950 | if (ret) { |
| 951 | v4l2_err(&bcap_dev->v4l2_dev, |
| 952 | "Unable to create sensor formats table\n"); |
| 953 | goto err_unreg_vdev; |
| 954 | } |
| 955 | return 0; |
| 956 | err_unreg_vdev: |
Lad, Prabhakar | afb7a96 | 2015-03-08 11:40:53 -0300 | [diff] [blame] | 957 | video_unregister_device(&bcap_dev->video_dev); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 958 | err_free_handler: |
| 959 | v4l2_ctrl_handler_free(&bcap_dev->ctrl_handler); |
| 960 | err_unreg_v4l2: |
| 961 | v4l2_device_unregister(&bcap_dev->v4l2_dev); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 962 | err_free_ppi: |
| 963 | ppi_delete_instance(bcap_dev->ppi); |
| 964 | err_free_dev: |
| 965 | kfree(bcap_dev); |
| 966 | return ret; |
| 967 | } |
| 968 | |
Greg Kroah-Hartman | 4c62e97 | 2012-12-21 13:17:53 -0800 | [diff] [blame] | 969 | static int bcap_remove(struct platform_device *pdev) |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 970 | { |
| 971 | struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev); |
| 972 | struct bcap_device *bcap_dev = container_of(v4l2_dev, |
| 973 | struct bcap_device, v4l2_dev); |
| 974 | |
| 975 | bcap_free_sensor_formats(bcap_dev); |
Lad, Prabhakar | afb7a96 | 2015-03-08 11:40:53 -0300 | [diff] [blame] | 976 | video_unregister_device(&bcap_dev->video_dev); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 977 | v4l2_ctrl_handler_free(&bcap_dev->ctrl_handler); |
| 978 | v4l2_device_unregister(v4l2_dev); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 979 | ppi_delete_instance(bcap_dev->ppi); |
| 980 | kfree(bcap_dev); |
| 981 | return 0; |
| 982 | } |
| 983 | |
| 984 | static struct platform_driver bcap_driver = { |
| 985 | .driver = { |
| 986 | .name = CAPTURE_DRV_NAME, |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 987 | }, |
| 988 | .probe = bcap_probe, |
Greg Kroah-Hartman | 4c62e97 | 2012-12-21 13:17:53 -0800 | [diff] [blame] | 989 | .remove = bcap_remove, |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 990 | }; |
Srinivas Kandagatla | 7f2b3a7d | 2012-10-10 14:33:38 -0300 | [diff] [blame] | 991 | module_platform_driver(bcap_driver); |
Scott Jiang | 63b1a90 | 2012-03-08 17:44:17 -0300 | [diff] [blame] | 992 | |
| 993 | MODULE_DESCRIPTION("Analog Devices blackfin video capture driver"); |
| 994 | MODULE_AUTHOR("Scott Jiang <Scott.Jiang.Linux@gmail.com>"); |
| 995 | MODULE_LICENSE("GPL v2"); |