Commit | Line | Data |
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6ffefff5 MK |
1 | /* |
2 | * Copyright (C) 2009 Texas Instruments Inc | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
17 | * | |
18 | * TODO : add support for VBI & HBI data service | |
19 | * add static buffer allocation | |
20 | */ | |
012eef70 | 21 | |
6ffefff5 | 22 | #include <linux/module.h> |
6ffefff5 | 23 | #include <linux/interrupt.h> |
6ffefff5 | 24 | #include <linux/platform_device.h> |
5a0e3ad6 | 25 | #include <linux/slab.h> |
012eef70 | 26 | |
012eef70 | 27 | #include <media/v4l2-ioctl.h> |
6ffefff5 | 28 | |
6ffefff5 | 29 | #include "vpif.h" |
012eef70 | 30 | #include "vpif_capture.h" |
6ffefff5 MK |
31 | |
32 | MODULE_DESCRIPTION("TI DaVinci VPIF Capture driver"); | |
33 | MODULE_LICENSE("GPL"); | |
64dc3c1a | 34 | MODULE_VERSION(VPIF_CAPTURE_VERSION); |
6ffefff5 MK |
35 | |
36 | #define vpif_err(fmt, arg...) v4l2_err(&vpif_obj.v4l2_dev, fmt, ## arg) | |
37 | #define vpif_dbg(level, debug, fmt, arg...) \ | |
38 | v4l2_dbg(level, debug, &vpif_obj.v4l2_dev, fmt, ## arg) | |
39 | ||
40 | static int debug = 1; | |
41 | static u32 ch0_numbuffers = 3; | |
42 | static u32 ch1_numbuffers = 3; | |
43 | static u32 ch0_bufsize = 1920 * 1080 * 2; | |
44 | static u32 ch1_bufsize = 720 * 576 * 2; | |
45 | ||
46 | module_param(debug, int, 0644); | |
47 | module_param(ch0_numbuffers, uint, S_IRUGO); | |
48 | module_param(ch1_numbuffers, uint, S_IRUGO); | |
49 | module_param(ch0_bufsize, uint, S_IRUGO); | |
50 | module_param(ch1_bufsize, uint, S_IRUGO); | |
51 | ||
52 | MODULE_PARM_DESC(debug, "Debug level 0-1"); | |
53 | MODULE_PARM_DESC(ch2_numbuffers, "Channel0 buffer count (default:3)"); | |
54 | MODULE_PARM_DESC(ch3_numbuffers, "Channel1 buffer count (default:3)"); | |
55 | MODULE_PARM_DESC(ch2_bufsize, "Channel0 buffer size (default:1920 x 1080 x 2)"); | |
56 | MODULE_PARM_DESC(ch3_bufsize, "Channel1 buffer size (default:720 x 576 x 2)"); | |
57 | ||
58 | static struct vpif_config_params config_params = { | |
59 | .min_numbuffers = 3, | |
60 | .numbuffers[0] = 3, | |
61 | .numbuffers[1] = 3, | |
62 | .min_bufsize[0] = 720 * 480 * 2, | |
63 | .min_bufsize[1] = 720 * 480 * 2, | |
64 | .channel_bufsize[0] = 1920 * 1080 * 2, | |
65 | .channel_bufsize[1] = 720 * 576 * 2, | |
66 | }; | |
67 | ||
68 | /* global variables */ | |
69 | static struct vpif_device vpif_obj = { {NULL} }; | |
70 | static struct device *vpif_dev; | |
60aa38d8 LP |
71 | static void vpif_calculate_offsets(struct channel_obj *ch); |
72 | static void vpif_config_addr(struct channel_obj *ch, int muxmode); | |
6ffefff5 MK |
73 | |
74 | /** | |
75 | * buffer_prepare : callback function for buffer prepare | |
60aa38d8 | 76 | * @vb: ptr to vb2_buffer |
6ffefff5 | 77 | * |
60aa38d8 | 78 | * This is the callback function for buffer prepare when vb2_qbuf() |
6ffefff5 MK |
79 | * function is called. The buffer is prepared and user space virtual address |
80 | * or user address is converted into physical address | |
81 | */ | |
60aa38d8 | 82 | static int vpif_buffer_prepare(struct vb2_buffer *vb) |
6ffefff5 MK |
83 | { |
84 | /* Get the file handle object and channel object */ | |
60aa38d8 LP |
85 | struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue); |
86 | struct vb2_queue *q = vb->vb2_queue; | |
6ffefff5 MK |
87 | struct channel_obj *ch = fh->channel; |
88 | struct common_obj *common; | |
89 | unsigned long addr; | |
90 | ||
6ffefff5 MK |
91 | vpif_dbg(2, debug, "vpif_buffer_prepare\n"); |
92 | ||
93 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
94 | ||
60aa38d8 LP |
95 | if (vb->state != VB2_BUF_STATE_ACTIVE && |
96 | vb->state != VB2_BUF_STATE_PREPARED) { | |
97 | vb2_set_plane_payload(vb, 0, common->fmt.fmt.pix.sizeimage); | |
98 | if (vb2_plane_vaddr(vb, 0) && | |
99 | vb2_get_plane_payload(vb, 0) > vb2_plane_size(vb, 0)) | |
6ffefff5 | 100 | goto exit; |
60aa38d8 | 101 | addr = vb2_dma_contig_plane_dma_addr(vb, 0); |
6ffefff5 | 102 | |
60aa38d8 LP |
103 | if (q->streaming) { |
104 | if (!IS_ALIGNED((addr + common->ytop_off), 8) || | |
105 | !IS_ALIGNED((addr + common->ybtm_off), 8) || | |
106 | !IS_ALIGNED((addr + common->ctop_off), 8) || | |
107 | !IS_ALIGNED((addr + common->cbtm_off), 8)) | |
108 | goto exit; | |
109 | } | |
6ffefff5 MK |
110 | } |
111 | return 0; | |
112 | exit: | |
113 | vpif_dbg(1, debug, "buffer_prepare:offset is not aligned to 8 bytes\n"); | |
114 | return -EINVAL; | |
115 | } | |
116 | ||
117 | /** | |
60aa38d8 LP |
118 | * vpif_buffer_queue_setup : Callback function for buffer setup. |
119 | * @vq: vb2_queue ptr | |
120 | * @fmt: v4l2 format | |
121 | * @nbuffers: ptr to number of buffers requested by application | |
122 | * @nplanes:: contains number of distinct video planes needed to hold a frame | |
123 | * @sizes[]: contains the size (in bytes) of each plane. | |
124 | * @alloc_ctxs: ptr to allocation context | |
6ffefff5 MK |
125 | * |
126 | * This callback function is called when reqbuf() is called to adjust | |
127 | * the buffer count and buffer size | |
128 | */ | |
60aa38d8 LP |
129 | static int vpif_buffer_queue_setup(struct vb2_queue *vq, |
130 | const struct v4l2_format *fmt, | |
131 | unsigned int *nbuffers, unsigned int *nplanes, | |
132 | unsigned int sizes[], void *alloc_ctxs[]) | |
6ffefff5 MK |
133 | { |
134 | /* Get the file handle object and channel object */ | |
60aa38d8 | 135 | struct vpif_fh *fh = vb2_get_drv_priv(vq); |
6ffefff5 MK |
136 | struct channel_obj *ch = fh->channel; |
137 | struct common_obj *common; | |
60aa38d8 | 138 | unsigned long size; |
6ffefff5 MK |
139 | |
140 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
141 | ||
142 | vpif_dbg(2, debug, "vpif_buffer_setup\n"); | |
143 | ||
144 | /* If memory type is not mmap, return */ | |
60aa38d8 LP |
145 | if (V4L2_MEMORY_MMAP == common->memory) { |
146 | /* Calculate the size of the buffer */ | |
147 | size = config_params.channel_bufsize[ch->channel_id]; | |
148 | /* | |
149 | * Checking if the buffer size exceeds the available buffer | |
150 | * ycmux_mode = 0 means 1 channel mode HD and | |
151 | * ycmux_mode = 1 means 2 channels mode SD | |
152 | */ | |
153 | if (ch->vpifparams.std_info.ycmux_mode == 0) { | |
154 | if (config_params.video_limit[ch->channel_id]) | |
155 | while (size * *nbuffers > | |
156 | (config_params.video_limit[0] | |
764af39a | 157 | + config_params.video_limit[1])) |
60aa38d8 LP |
158 | (*nbuffers)--; |
159 | } else { | |
160 | if (config_params.video_limit[ch->channel_id]) | |
161 | while (size * *nbuffers > | |
764af39a | 162 | config_params.video_limit[ch->channel_id]) |
60aa38d8 LP |
163 | (*nbuffers)--; |
164 | } | |
165 | ||
166 | } else { | |
167 | size = common->fmt.fmt.pix.sizeimage; | |
764af39a MH |
168 | } |
169 | ||
60aa38d8 LP |
170 | if (*nbuffers < config_params.min_numbuffers) |
171 | *nbuffers = config_params.min_numbuffers; | |
172 | ||
173 | *nplanes = 1; | |
174 | sizes[0] = size; | |
175 | alloc_ctxs[0] = common->alloc_ctx; | |
176 | ||
6ffefff5 MK |
177 | return 0; |
178 | } | |
179 | ||
180 | /** | |
181 | * vpif_buffer_queue : Callback function to add buffer to DMA queue | |
60aa38d8 | 182 | * @vb: ptr to vb2_buffer |
6ffefff5 | 183 | */ |
60aa38d8 | 184 | static void vpif_buffer_queue(struct vb2_buffer *vb) |
6ffefff5 MK |
185 | { |
186 | /* Get the file handle object and channel object */ | |
60aa38d8 | 187 | struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue); |
6ffefff5 | 188 | struct channel_obj *ch = fh->channel; |
60aa38d8 LP |
189 | struct vpif_cap_buffer *buf = container_of(vb, |
190 | struct vpif_cap_buffer, vb); | |
6ffefff5 | 191 | struct common_obj *common; |
aec96832 | 192 | unsigned long flags; |
6ffefff5 MK |
193 | |
194 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
195 | ||
196 | vpif_dbg(2, debug, "vpif_buffer_queue\n"); | |
197 | ||
aec96832 | 198 | spin_lock_irqsave(&common->irqlock, flags); |
6ffefff5 | 199 | /* add the buffer to the DMA queue */ |
60aa38d8 | 200 | list_add_tail(&buf->list, &common->dma_queue); |
aec96832 | 201 | spin_unlock_irqrestore(&common->irqlock, flags); |
6ffefff5 MK |
202 | } |
203 | ||
204 | /** | |
60aa38d8 LP |
205 | * vpif_buf_cleanup : Callback function to free buffer |
206 | * @vb: ptr to vb2_buffer | |
6ffefff5 | 207 | * |
60aa38d8 | 208 | * This function is called from the videobuf2 layer to free memory |
6ffefff5 MK |
209 | * allocated to the buffers |
210 | */ | |
60aa38d8 | 211 | static void vpif_buf_cleanup(struct vb2_buffer *vb) |
6ffefff5 MK |
212 | { |
213 | /* Get the file handle object and channel object */ | |
60aa38d8 LP |
214 | struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue); |
215 | struct vpif_cap_buffer *buf = container_of(vb, | |
216 | struct vpif_cap_buffer, vb); | |
6ffefff5 MK |
217 | struct channel_obj *ch = fh->channel; |
218 | struct common_obj *common; | |
60aa38d8 | 219 | unsigned long flags; |
6ffefff5 MK |
220 | |
221 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
222 | ||
60aa38d8 LP |
223 | spin_lock_irqsave(&common->irqlock, flags); |
224 | if (vb->state == VB2_BUF_STATE_ACTIVE) | |
225 | list_del_init(&buf->list); | |
226 | spin_unlock_irqrestore(&common->irqlock, flags); | |
227 | ||
6ffefff5 MK |
228 | } |
229 | ||
60aa38d8 LP |
230 | static void vpif_wait_prepare(struct vb2_queue *vq) |
231 | { | |
232 | struct vpif_fh *fh = vb2_get_drv_priv(vq); | |
233 | struct channel_obj *ch = fh->channel; | |
234 | struct common_obj *common; | |
235 | ||
236 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
237 | mutex_unlock(&common->lock); | |
238 | } | |
239 | ||
240 | static void vpif_wait_finish(struct vb2_queue *vq) | |
241 | { | |
242 | struct vpif_fh *fh = vb2_get_drv_priv(vq); | |
243 | struct channel_obj *ch = fh->channel; | |
244 | struct common_obj *common; | |
245 | ||
246 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
247 | mutex_lock(&common->lock); | |
248 | } | |
249 | ||
250 | static int vpif_buffer_init(struct vb2_buffer *vb) | |
251 | { | |
252 | struct vpif_cap_buffer *buf = container_of(vb, | |
253 | struct vpif_cap_buffer, vb); | |
254 | ||
255 | INIT_LIST_HEAD(&buf->list); | |
256 | ||
257 | return 0; | |
258 | } | |
6ffefff5 MK |
259 | |
260 | static u8 channel_first_int[VPIF_NUMBER_OF_OBJECTS][2] = | |
261 | { {1, 1} }; | |
262 | ||
60aa38d8 LP |
263 | static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count) |
264 | { | |
265 | struct vpif_capture_config *vpif_config_data = | |
266 | vpif_dev->platform_data; | |
267 | struct vpif_fh *fh = vb2_get_drv_priv(vq); | |
268 | struct channel_obj *ch = fh->channel; | |
269 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
270 | struct vpif_params *vpif = &ch->vpifparams; | |
271 | unsigned long addr = 0; | |
aec96832 | 272 | unsigned long flags; |
60aa38d8 LP |
273 | int ret; |
274 | ||
aec96832 HV |
275 | /* If buffer queue is empty, return error */ |
276 | spin_lock_irqsave(&common->irqlock, flags); | |
60aa38d8 | 277 | if (list_empty(&common->dma_queue)) { |
aec96832 | 278 | spin_unlock_irqrestore(&common->irqlock, flags); |
60aa38d8 LP |
279 | vpif_dbg(1, debug, "buffer queue is empty\n"); |
280 | return -EIO; | |
281 | } | |
282 | ||
283 | /* Get the next frame from the buffer queue */ | |
284 | common->cur_frm = common->next_frm = list_entry(common->dma_queue.next, | |
285 | struct vpif_cap_buffer, list); | |
286 | /* Remove buffer from the buffer queue */ | |
287 | list_del(&common->cur_frm->list); | |
aec96832 | 288 | spin_unlock_irqrestore(&common->irqlock, flags); |
60aa38d8 LP |
289 | /* Mark state of the current frame to active */ |
290 | common->cur_frm->vb.state = VB2_BUF_STATE_ACTIVE; | |
291 | /* Initialize field_id and started member */ | |
292 | ch->field_id = 0; | |
293 | common->started = 1; | |
294 | addr = vb2_dma_contig_plane_dma_addr(&common->cur_frm->vb, 0); | |
295 | ||
296 | /* Calculate the offset for Y and C data in the buffer */ | |
297 | vpif_calculate_offsets(ch); | |
298 | ||
299 | if ((vpif->std_info.frm_fmt && | |
300 | ((common->fmt.fmt.pix.field != V4L2_FIELD_NONE) && | |
301 | (common->fmt.fmt.pix.field != V4L2_FIELD_ANY))) || | |
302 | (!vpif->std_info.frm_fmt && | |
303 | (common->fmt.fmt.pix.field == V4L2_FIELD_NONE))) { | |
304 | vpif_dbg(1, debug, "conflict in field format and std format\n"); | |
305 | return -EINVAL; | |
306 | } | |
307 | ||
308 | /* configure 1 or 2 channel mode */ | |
f4ad8d74 LP |
309 | if (vpif_config_data->setup_input_channel_mode) { |
310 | ret = vpif_config_data-> | |
311 | setup_input_channel_mode(vpif->std_info.ycmux_mode); | |
312 | if (ret < 0) { | |
313 | vpif_dbg(1, debug, "can't set vpif channel mode\n"); | |
314 | return ret; | |
315 | } | |
60aa38d8 LP |
316 | } |
317 | ||
318 | /* Call vpif_set_params function to set the parameters and addresses */ | |
319 | ret = vpif_set_video_params(vpif, ch->channel_id); | |
320 | ||
321 | if (ret < 0) { | |
322 | vpif_dbg(1, debug, "can't set video params\n"); | |
323 | return ret; | |
324 | } | |
325 | ||
326 | common->started = ret; | |
327 | vpif_config_addr(ch, ret); | |
328 | ||
329 | common->set_addr(addr + common->ytop_off, | |
330 | addr + common->ybtm_off, | |
331 | addr + common->ctop_off, | |
332 | addr + common->cbtm_off); | |
333 | ||
334 | /** | |
335 | * Set interrupt for both the fields in VPIF Register enable channel in | |
336 | * VPIF register | |
337 | */ | |
9e18404a | 338 | channel_first_int[VPIF_VIDEO_INDEX][ch->channel_id] = 1; |
60aa38d8 LP |
339 | if ((VPIF_CHANNEL0_VIDEO == ch->channel_id)) { |
340 | channel0_intr_assert(); | |
341 | channel0_intr_enable(1); | |
342 | enable_channel0(1); | |
343 | } | |
344 | if ((VPIF_CHANNEL1_VIDEO == ch->channel_id) || | |
345 | (common->started == 2)) { | |
346 | channel1_intr_assert(); | |
347 | channel1_intr_enable(1); | |
348 | enable_channel1(1); | |
349 | } | |
60aa38d8 LP |
350 | |
351 | return 0; | |
352 | } | |
353 | ||
354 | /* abort streaming and wait for last buffer */ | |
355 | static int vpif_stop_streaming(struct vb2_queue *vq) | |
356 | { | |
357 | struct vpif_fh *fh = vb2_get_drv_priv(vq); | |
358 | struct channel_obj *ch = fh->channel; | |
359 | struct common_obj *common; | |
aec96832 | 360 | unsigned long flags; |
60aa38d8 LP |
361 | |
362 | if (!vb2_is_streaming(vq)) | |
363 | return 0; | |
364 | ||
365 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
366 | ||
367 | /* release all active buffers */ | |
aec96832 | 368 | spin_lock_irqsave(&common->irqlock, flags); |
60aa38d8 LP |
369 | while (!list_empty(&common->dma_queue)) { |
370 | common->next_frm = list_entry(common->dma_queue.next, | |
371 | struct vpif_cap_buffer, list); | |
372 | list_del(&common->next_frm->list); | |
373 | vb2_buffer_done(&common->next_frm->vb, VB2_BUF_STATE_ERROR); | |
374 | } | |
aec96832 | 375 | spin_unlock_irqrestore(&common->irqlock, flags); |
60aa38d8 LP |
376 | |
377 | return 0; | |
378 | } | |
379 | ||
380 | static struct vb2_ops video_qops = { | |
381 | .queue_setup = vpif_buffer_queue_setup, | |
382 | .wait_prepare = vpif_wait_prepare, | |
383 | .wait_finish = vpif_wait_finish, | |
384 | .buf_init = vpif_buffer_init, | |
385 | .buf_prepare = vpif_buffer_prepare, | |
386 | .start_streaming = vpif_start_streaming, | |
387 | .stop_streaming = vpif_stop_streaming, | |
388 | .buf_cleanup = vpif_buf_cleanup, | |
389 | .buf_queue = vpif_buffer_queue, | |
390 | }; | |
391 | ||
6ffefff5 MK |
392 | /** |
393 | * vpif_process_buffer_complete: process a completed buffer | |
394 | * @common: ptr to common channel object | |
395 | * | |
396 | * This function time stamp the buffer and mark it as DONE. It also | |
397 | * wake up any process waiting on the QUEUE and set the next buffer | |
398 | * as current | |
399 | */ | |
400 | static void vpif_process_buffer_complete(struct common_obj *common) | |
401 | { | |
8e6057b5 | 402 | v4l2_get_timestamp(&common->cur_frm->vb.v4l2_buf.timestamp); |
60aa38d8 LP |
403 | vb2_buffer_done(&common->cur_frm->vb, |
404 | VB2_BUF_STATE_DONE); | |
6ffefff5 MK |
405 | /* Make curFrm pointing to nextFrm */ |
406 | common->cur_frm = common->next_frm; | |
407 | } | |
408 | ||
409 | /** | |
410 | * vpif_schedule_next_buffer: set next buffer address for capture | |
411 | * @common : ptr to common channel object | |
412 | * | |
413 | * This function will get next buffer from the dma queue and | |
414 | * set the buffer address in the vpif register for capture. | |
415 | * the buffer is marked active | |
416 | */ | |
417 | static void vpif_schedule_next_buffer(struct common_obj *common) | |
418 | { | |
419 | unsigned long addr = 0; | |
420 | ||
aec96832 | 421 | spin_lock(&common->irqlock); |
6ffefff5 | 422 | common->next_frm = list_entry(common->dma_queue.next, |
60aa38d8 | 423 | struct vpif_cap_buffer, list); |
6ffefff5 | 424 | /* Remove that buffer from the buffer queue */ |
60aa38d8 | 425 | list_del(&common->next_frm->list); |
aec96832 | 426 | spin_unlock(&common->irqlock); |
60aa38d8 LP |
427 | common->next_frm->vb.state = VB2_BUF_STATE_ACTIVE; |
428 | addr = vb2_dma_contig_plane_dma_addr(&common->next_frm->vb, 0); | |
6ffefff5 MK |
429 | |
430 | /* Set top and bottom field addresses in VPIF registers */ | |
431 | common->set_addr(addr + common->ytop_off, | |
432 | addr + common->ybtm_off, | |
433 | addr + common->ctop_off, | |
434 | addr + common->cbtm_off); | |
435 | } | |
436 | ||
437 | /** | |
438 | * vpif_channel_isr : ISR handler for vpif capture | |
439 | * @irq: irq number | |
440 | * @dev_id: dev_id ptr | |
441 | * | |
442 | * It changes status of the captured buffer, takes next buffer from the queue | |
2c0ddd17 | 443 | * and sets its address in VPIF registers |
6ffefff5 MK |
444 | */ |
445 | static irqreturn_t vpif_channel_isr(int irq, void *dev_id) | |
446 | { | |
447 | struct vpif_device *dev = &vpif_obj; | |
448 | struct common_obj *common; | |
449 | struct channel_obj *ch; | |
450 | enum v4l2_field field; | |
451 | int channel_id = 0; | |
452 | int fid = -1, i; | |
453 | ||
454 | channel_id = *(int *)(dev_id); | |
b1fc4230 MH |
455 | if (!vpif_intr_status(channel_id)) |
456 | return IRQ_NONE; | |
457 | ||
6ffefff5 MK |
458 | ch = dev->dev[channel_id]; |
459 | ||
460 | field = ch->common[VPIF_VIDEO_INDEX].fmt.fmt.pix.field; | |
461 | ||
462 | for (i = 0; i < VPIF_NUMBER_OF_OBJECTS; i++) { | |
463 | common = &ch->common[i]; | |
464 | /* skip If streaming is not started in this channel */ | |
465 | if (0 == common->started) | |
466 | continue; | |
467 | ||
468 | /* Check the field format */ | |
469 | if (1 == ch->vpifparams.std_info.frm_fmt) { | |
470 | /* Progressive mode */ | |
aec96832 HV |
471 | spin_lock(&common->irqlock); |
472 | if (list_empty(&common->dma_queue)) { | |
473 | spin_unlock(&common->irqlock); | |
6ffefff5 | 474 | continue; |
aec96832 HV |
475 | } |
476 | spin_unlock(&common->irqlock); | |
6ffefff5 MK |
477 | |
478 | if (!channel_first_int[i][channel_id]) | |
479 | vpif_process_buffer_complete(common); | |
480 | ||
481 | channel_first_int[i][channel_id] = 0; | |
482 | ||
483 | vpif_schedule_next_buffer(common); | |
484 | ||
485 | ||
486 | channel_first_int[i][channel_id] = 0; | |
487 | } else { | |
488 | /** | |
489 | * Interlaced mode. If it is first interrupt, ignore | |
490 | * it | |
491 | */ | |
492 | if (channel_first_int[i][channel_id]) { | |
493 | channel_first_int[i][channel_id] = 0; | |
494 | continue; | |
495 | } | |
496 | if (0 == i) { | |
497 | ch->field_id ^= 1; | |
498 | /* Get field id from VPIF registers */ | |
499 | fid = vpif_channel_getfid(ch->channel_id); | |
500 | if (fid != ch->field_id) { | |
501 | /** | |
502 | * If field id does not match stored | |
503 | * field id, make them in sync | |
504 | */ | |
505 | if (0 == fid) | |
506 | ch->field_id = fid; | |
507 | return IRQ_HANDLED; | |
508 | } | |
509 | } | |
510 | /* device field id and local field id are in sync */ | |
511 | if (0 == fid) { | |
512 | /* this is even field */ | |
513 | if (common->cur_frm == common->next_frm) | |
514 | continue; | |
515 | ||
516 | /* mark the current buffer as done */ | |
517 | vpif_process_buffer_complete(common); | |
518 | } else if (1 == fid) { | |
519 | /* odd field */ | |
aec96832 | 520 | spin_lock(&common->irqlock); |
6ffefff5 | 521 | if (list_empty(&common->dma_queue) || |
aec96832 HV |
522 | (common->cur_frm != common->next_frm)) { |
523 | spin_unlock(&common->irqlock); | |
6ffefff5 | 524 | continue; |
aec96832 HV |
525 | } |
526 | spin_unlock(&common->irqlock); | |
6ffefff5 MK |
527 | |
528 | vpif_schedule_next_buffer(common); | |
529 | } | |
530 | } | |
531 | } | |
532 | return IRQ_HANDLED; | |
533 | } | |
534 | ||
535 | /** | |
536 | * vpif_update_std_info() - update standard related info | |
537 | * @ch: ptr to channel object | |
538 | * | |
539 | * For a given standard selected by application, update values | |
540 | * in the device data structures | |
541 | */ | |
542 | static int vpif_update_std_info(struct channel_obj *ch) | |
543 | { | |
544 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
545 | struct vpif_params *vpifparams = &ch->vpifparams; | |
546 | const struct vpif_channel_config_params *config; | |
2c0ddd17 | 547 | struct vpif_channel_config_params *std_info = &vpifparams->std_info; |
6ffefff5 MK |
548 | struct video_obj *vid_ch = &ch->video; |
549 | int index; | |
550 | ||
551 | vpif_dbg(2, debug, "vpif_update_std_info\n"); | |
552 | ||
aa444406 | 553 | for (index = 0; index < vpif_ch_params_count; index++) { |
ced9b21f | 554 | config = &vpif_ch_params[index]; |
40c8bcea MR |
555 | if (config->hd_sd == 0) { |
556 | vpif_dbg(2, debug, "SD format\n"); | |
557 | if (config->stdid & vid_ch->stdid) { | |
558 | memcpy(std_info, config, sizeof(*config)); | |
559 | break; | |
560 | } | |
561 | } else { | |
562 | vpif_dbg(2, debug, "HD format\n"); | |
0598c17b HV |
563 | if (!memcmp(&config->dv_timings, &vid_ch->dv_timings, |
564 | sizeof(vid_ch->dv_timings))) { | |
40c8bcea MR |
565 | memcpy(std_info, config, sizeof(*config)); |
566 | break; | |
567 | } | |
6ffefff5 MK |
568 | } |
569 | } | |
570 | ||
571 | /* standard not found */ | |
aa444406 | 572 | if (index == vpif_ch_params_count) |
6ffefff5 MK |
573 | return -EINVAL; |
574 | ||
575 | common->fmt.fmt.pix.width = std_info->width; | |
576 | common->width = std_info->width; | |
577 | common->fmt.fmt.pix.height = std_info->height; | |
578 | common->height = std_info->height; | |
579 | common->fmt.fmt.pix.bytesperline = std_info->width; | |
580 | vpifparams->video_params.hpitch = std_info->width; | |
581 | vpifparams->video_params.storage_mode = std_info->frm_fmt; | |
2c0ddd17 | 582 | |
6ffefff5 MK |
583 | return 0; |
584 | } | |
585 | ||
586 | /** | |
587 | * vpif_calculate_offsets : This function calculates buffers offsets | |
588 | * @ch : ptr to channel object | |
589 | * | |
590 | * This function calculates buffer offsets for Y and C in the top and | |
591 | * bottom field | |
592 | */ | |
593 | static void vpif_calculate_offsets(struct channel_obj *ch) | |
594 | { | |
595 | unsigned int hpitch, vpitch, sizeimage; | |
596 | struct video_obj *vid_ch = &(ch->video); | |
597 | struct vpif_params *vpifparams = &ch->vpifparams; | |
598 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
599 | enum v4l2_field field = common->fmt.fmt.pix.field; | |
600 | ||
601 | vpif_dbg(2, debug, "vpif_calculate_offsets\n"); | |
602 | ||
603 | if (V4L2_FIELD_ANY == field) { | |
604 | if (vpifparams->std_info.frm_fmt) | |
605 | vid_ch->buf_field = V4L2_FIELD_NONE; | |
606 | else | |
607 | vid_ch->buf_field = V4L2_FIELD_INTERLACED; | |
608 | } else | |
609 | vid_ch->buf_field = common->fmt.fmt.pix.field; | |
610 | ||
60aa38d8 | 611 | sizeimage = common->fmt.fmt.pix.sizeimage; |
6ffefff5 MK |
612 | |
613 | hpitch = common->fmt.fmt.pix.bytesperline; | |
614 | vpitch = sizeimage / (hpitch * 2); | |
615 | ||
616 | if ((V4L2_FIELD_NONE == vid_ch->buf_field) || | |
617 | (V4L2_FIELD_INTERLACED == vid_ch->buf_field)) { | |
618 | /* Calculate offsets for Y top, Y Bottom, C top and C Bottom */ | |
619 | common->ytop_off = 0; | |
620 | common->ybtm_off = hpitch; | |
621 | common->ctop_off = sizeimage / 2; | |
622 | common->cbtm_off = sizeimage / 2 + hpitch; | |
623 | } else if (V4L2_FIELD_SEQ_TB == vid_ch->buf_field) { | |
624 | /* Calculate offsets for Y top, Y Bottom, C top and C Bottom */ | |
625 | common->ytop_off = 0; | |
626 | common->ybtm_off = sizeimage / 4; | |
627 | common->ctop_off = sizeimage / 2; | |
628 | common->cbtm_off = common->ctop_off + sizeimage / 4; | |
629 | } else if (V4L2_FIELD_SEQ_BT == vid_ch->buf_field) { | |
630 | /* Calculate offsets for Y top, Y Bottom, C top and C Bottom */ | |
631 | common->ybtm_off = 0; | |
632 | common->ytop_off = sizeimage / 4; | |
633 | common->cbtm_off = sizeimage / 2; | |
634 | common->ctop_off = common->cbtm_off + sizeimage / 4; | |
635 | } | |
636 | if ((V4L2_FIELD_NONE == vid_ch->buf_field) || | |
637 | (V4L2_FIELD_INTERLACED == vid_ch->buf_field)) | |
638 | vpifparams->video_params.storage_mode = 1; | |
639 | else | |
640 | vpifparams->video_params.storage_mode = 0; | |
641 | ||
642 | if (1 == vpifparams->std_info.frm_fmt) | |
643 | vpifparams->video_params.hpitch = | |
644 | common->fmt.fmt.pix.bytesperline; | |
645 | else { | |
646 | if ((field == V4L2_FIELD_ANY) | |
647 | || (field == V4L2_FIELD_INTERLACED)) | |
648 | vpifparams->video_params.hpitch = | |
649 | common->fmt.fmt.pix.bytesperline * 2; | |
650 | else | |
651 | vpifparams->video_params.hpitch = | |
652 | common->fmt.fmt.pix.bytesperline; | |
653 | } | |
654 | ||
655 | ch->vpifparams.video_params.stdid = vpifparams->std_info.stdid; | |
656 | } | |
657 | ||
658 | /** | |
659 | * vpif_config_format: configure default frame format in the device | |
660 | * ch : ptr to channel object | |
661 | */ | |
662 | static void vpif_config_format(struct channel_obj *ch) | |
663 | { | |
664 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
665 | ||
666 | vpif_dbg(2, debug, "vpif_config_format\n"); | |
667 | ||
668 | common->fmt.fmt.pix.field = V4L2_FIELD_ANY; | |
669 | if (config_params.numbuffers[ch->channel_id] == 0) | |
670 | common->memory = V4L2_MEMORY_USERPTR; | |
671 | else | |
672 | common->memory = V4L2_MEMORY_MMAP; | |
673 | ||
674 | common->fmt.fmt.pix.sizeimage | |
675 | = config_params.channel_bufsize[ch->channel_id]; | |
676 | ||
677 | if (ch->vpifparams.iface.if_type == VPIF_IF_RAW_BAYER) | |
678 | common->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_SBGGR8; | |
679 | else | |
680 | common->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_YUV422P; | |
681 | common->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
682 | } | |
683 | ||
684 | /** | |
685 | * vpif_get_default_field() - Get default field type based on interface | |
686 | * @vpif_params - ptr to vpif params | |
687 | */ | |
688 | static inline enum v4l2_field vpif_get_default_field( | |
689 | struct vpif_interface *iface) | |
690 | { | |
691 | return (iface->if_type == VPIF_IF_RAW_BAYER) ? V4L2_FIELD_NONE : | |
692 | V4L2_FIELD_INTERLACED; | |
693 | } | |
694 | ||
695 | /** | |
696 | * vpif_check_format() - check given pixel format for compatibility | |
697 | * @ch - channel ptr | |
698 | * @pixfmt - Given pixel format | |
699 | * @update - update the values as per hardware requirement | |
700 | * | |
701 | * Check the application pixel format for S_FMT and update the input | |
702 | * values as per hardware limits for TRY_FMT. The default pixel and | |
703 | * field format is selected based on interface type. | |
704 | */ | |
705 | static int vpif_check_format(struct channel_obj *ch, | |
706 | struct v4l2_pix_format *pixfmt, | |
707 | int update) | |
708 | { | |
709 | struct common_obj *common = &(ch->common[VPIF_VIDEO_INDEX]); | |
710 | struct vpif_params *vpif_params = &ch->vpifparams; | |
711 | enum v4l2_field field = pixfmt->field; | |
712 | u32 sizeimage, hpitch, vpitch; | |
713 | int ret = -EINVAL; | |
714 | ||
715 | vpif_dbg(2, debug, "vpif_check_format\n"); | |
716 | /** | |
717 | * first check for the pixel format. If if_type is Raw bayer, | |
718 | * only V4L2_PIX_FMT_SBGGR8 format is supported. Otherwise only | |
719 | * V4L2_PIX_FMT_YUV422P is supported | |
720 | */ | |
721 | if (vpif_params->iface.if_type == VPIF_IF_RAW_BAYER) { | |
722 | if (pixfmt->pixelformat != V4L2_PIX_FMT_SBGGR8) { | |
723 | if (!update) { | |
724 | vpif_dbg(2, debug, "invalid pix format\n"); | |
725 | goto exit; | |
726 | } | |
727 | pixfmt->pixelformat = V4L2_PIX_FMT_SBGGR8; | |
728 | } | |
729 | } else { | |
730 | if (pixfmt->pixelformat != V4L2_PIX_FMT_YUV422P) { | |
731 | if (!update) { | |
732 | vpif_dbg(2, debug, "invalid pixel format\n"); | |
733 | goto exit; | |
734 | } | |
735 | pixfmt->pixelformat = V4L2_PIX_FMT_YUV422P; | |
736 | } | |
737 | } | |
738 | ||
739 | if (!(VPIF_VALID_FIELD(field))) { | |
740 | if (!update) { | |
741 | vpif_dbg(2, debug, "invalid field format\n"); | |
742 | goto exit; | |
743 | } | |
744 | /** | |
745 | * By default use FIELD_NONE for RAW Bayer capture | |
746 | * and FIELD_INTERLACED for other interfaces | |
747 | */ | |
748 | field = vpif_get_default_field(&vpif_params->iface); | |
749 | } else if (field == V4L2_FIELD_ANY) | |
750 | /* unsupported field. Use default */ | |
751 | field = vpif_get_default_field(&vpif_params->iface); | |
752 | ||
753 | /* validate the hpitch */ | |
754 | hpitch = pixfmt->bytesperline; | |
755 | if (hpitch < vpif_params->std_info.width) { | |
756 | if (!update) { | |
757 | vpif_dbg(2, debug, "invalid hpitch\n"); | |
758 | goto exit; | |
759 | } | |
760 | hpitch = vpif_params->std_info.width; | |
761 | } | |
762 | ||
60aa38d8 | 763 | sizeimage = pixfmt->sizeimage; |
6ffefff5 MK |
764 | |
765 | vpitch = sizeimage / (hpitch * 2); | |
766 | ||
767 | /* validate the vpitch */ | |
768 | if (vpitch < vpif_params->std_info.height) { | |
769 | if (!update) { | |
770 | vpif_dbg(2, debug, "Invalid vpitch\n"); | |
771 | goto exit; | |
772 | } | |
773 | vpitch = vpif_params->std_info.height; | |
774 | } | |
775 | ||
776 | /* Check for 8 byte alignment */ | |
777 | if (!ALIGN(hpitch, 8)) { | |
778 | if (!update) { | |
779 | vpif_dbg(2, debug, "invalid pitch alignment\n"); | |
780 | goto exit; | |
781 | } | |
782 | /* adjust to next 8 byte boundary */ | |
783 | hpitch = (((hpitch + 7) / 8) * 8); | |
784 | } | |
785 | /* if update is set, modify the bytesperline and sizeimage */ | |
786 | if (update) { | |
787 | pixfmt->bytesperline = hpitch; | |
788 | pixfmt->sizeimage = hpitch * vpitch * 2; | |
789 | } | |
790 | /** | |
791 | * Image width and height is always based on current standard width and | |
792 | * height | |
793 | */ | |
794 | pixfmt->width = common->fmt.fmt.pix.width; | |
795 | pixfmt->height = common->fmt.fmt.pix.height; | |
796 | return 0; | |
797 | exit: | |
798 | return ret; | |
799 | } | |
800 | ||
801 | /** | |
802 | * vpif_config_addr() - function to configure buffer address in vpif | |
803 | * @ch - channel ptr | |
804 | * @muxmode - channel mux mode | |
805 | */ | |
806 | static void vpif_config_addr(struct channel_obj *ch, int muxmode) | |
807 | { | |
808 | struct common_obj *common; | |
809 | ||
810 | vpif_dbg(2, debug, "vpif_config_addr\n"); | |
811 | ||
812 | common = &(ch->common[VPIF_VIDEO_INDEX]); | |
813 | ||
814 | if (VPIF_CHANNEL1_VIDEO == ch->channel_id) | |
815 | common->set_addr = ch1_set_videobuf_addr; | |
816 | else if (2 == muxmode) | |
817 | common->set_addr = ch0_set_videobuf_addr_yc_nmux; | |
818 | else | |
819 | common->set_addr = ch0_set_videobuf_addr; | |
820 | } | |
821 | ||
822 | /** | |
6f45b1b9 | 823 | * vpif_mmap : It is used to map kernel space buffers into user spaces |
6ffefff5 MK |
824 | * @filep: file pointer |
825 | * @vma: ptr to vm_area_struct | |
826 | */ | |
827 | static int vpif_mmap(struct file *filep, struct vm_area_struct *vma) | |
828 | { | |
829 | /* Get the channel object and file handle object */ | |
830 | struct vpif_fh *fh = filep->private_data; | |
831 | struct channel_obj *ch = fh->channel; | |
832 | struct common_obj *common = &(ch->common[VPIF_VIDEO_INDEX]); | |
7224679a | 833 | int ret; |
6ffefff5 MK |
834 | |
835 | vpif_dbg(2, debug, "vpif_mmap\n"); | |
836 | ||
7224679a HV |
837 | if (mutex_lock_interruptible(&common->lock)) |
838 | return -ERESTARTSYS; | |
839 | ret = vb2_mmap(&common->buffer_queue, vma); | |
840 | mutex_unlock(&common->lock); | |
841 | return ret; | |
6ffefff5 MK |
842 | } |
843 | ||
844 | /** | |
845 | * vpif_poll: It is used for select/poll system call | |
846 | * @filep: file pointer | |
847 | * @wait: poll table to wait | |
848 | */ | |
849 | static unsigned int vpif_poll(struct file *filep, poll_table * wait) | |
850 | { | |
6ffefff5 MK |
851 | struct vpif_fh *fh = filep->private_data; |
852 | struct channel_obj *channel = fh->channel; | |
853 | struct common_obj *common = &(channel->common[VPIF_VIDEO_INDEX]); | |
7224679a | 854 | unsigned int res = 0; |
6ffefff5 MK |
855 | |
856 | vpif_dbg(2, debug, "vpif_poll\n"); | |
857 | ||
7224679a HV |
858 | if (common->started) { |
859 | mutex_lock(&common->lock); | |
860 | res = vb2_poll(&common->buffer_queue, filep, wait); | |
861 | mutex_unlock(&common->lock); | |
862 | } | |
863 | return res; | |
6ffefff5 MK |
864 | } |
865 | ||
866 | /** | |
867 | * vpif_open : vpif open handler | |
868 | * @filep: file ptr | |
869 | * | |
870 | * It creates object of file handle structure and stores it in private_data | |
871 | * member of filepointer | |
872 | */ | |
873 | static int vpif_open(struct file *filep) | |
874 | { | |
6ffefff5 MK |
875 | struct video_device *vdev = video_devdata(filep); |
876 | struct common_obj *common; | |
877 | struct video_obj *vid_ch; | |
878 | struct channel_obj *ch; | |
879 | struct vpif_fh *fh; | |
6ffefff5 MK |
880 | |
881 | vpif_dbg(2, debug, "vpif_open\n"); | |
882 | ||
883 | ch = video_get_drvdata(vdev); | |
884 | ||
885 | vid_ch = &ch->video; | |
886 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
887 | ||
6ffefff5 | 888 | /* Allocate memory for the file handle object */ |
1f8766b4 | 889 | fh = kzalloc(sizeof(struct vpif_fh), GFP_KERNEL); |
6ffefff5 MK |
890 | if (NULL == fh) { |
891 | vpif_err("unable to allocate memory for file handle object\n"); | |
46656afa | 892 | return -ENOMEM; |
6ffefff5 MK |
893 | } |
894 | ||
7224679a HV |
895 | if (mutex_lock_interruptible(&common->lock)) { |
896 | kfree(fh); | |
897 | return -ERESTARTSYS; | |
898 | } | |
6ffefff5 MK |
899 | /* store pointer to fh in private_data member of filep */ |
900 | filep->private_data = fh; | |
901 | fh->channel = ch; | |
902 | fh->initialized = 0; | |
903 | /* If decoder is not initialized. initialize it */ | |
904 | if (!ch->initialized) { | |
905 | fh->initialized = 1; | |
906 | ch->initialized = 1; | |
907 | memset(&(ch->vpifparams), 0, sizeof(struct vpif_params)); | |
908 | } | |
909 | /* Increment channel usrs counter */ | |
910 | ch->usrs++; | |
911 | /* Set io_allowed member to false */ | |
912 | fh->io_allowed[VPIF_VIDEO_INDEX] = 0; | |
913 | /* Initialize priority of this instance to default priority */ | |
914 | fh->prio = V4L2_PRIORITY_UNSET; | |
915 | v4l2_prio_open(&ch->prio, &fh->prio); | |
7224679a | 916 | mutex_unlock(&common->lock); |
46656afa | 917 | return 0; |
6ffefff5 MK |
918 | } |
919 | ||
920 | /** | |
921 | * vpif_release : function to clean up file close | |
922 | * @filep: file pointer | |
923 | * | |
6f45b1b9 | 924 | * This function deletes buffer queue, frees the buffers and the vpif file |
6ffefff5 MK |
925 | * handle |
926 | */ | |
927 | static int vpif_release(struct file *filep) | |
928 | { | |
929 | struct vpif_fh *fh = filep->private_data; | |
930 | struct channel_obj *ch = fh->channel; | |
931 | struct common_obj *common; | |
932 | ||
933 | vpif_dbg(2, debug, "vpif_release\n"); | |
934 | ||
935 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
936 | ||
7224679a | 937 | mutex_lock(&common->lock); |
6ffefff5 MK |
938 | /* if this instance is doing IO */ |
939 | if (fh->io_allowed[VPIF_VIDEO_INDEX]) { | |
940 | /* Reset io_usrs member of channel object */ | |
941 | common->io_usrs = 0; | |
942 | /* Disable channel as per its device type and channel id */ | |
943 | if (VPIF_CHANNEL0_VIDEO == ch->channel_id) { | |
944 | enable_channel0(0); | |
945 | channel0_intr_enable(0); | |
946 | } | |
947 | if ((VPIF_CHANNEL1_VIDEO == ch->channel_id) || | |
948 | (2 == common->started)) { | |
949 | enable_channel1(0); | |
950 | channel1_intr_enable(0); | |
951 | } | |
952 | common->started = 0; | |
953 | /* Free buffers allocated */ | |
60aa38d8 LP |
954 | vb2_queue_release(&common->buffer_queue); |
955 | vb2_dma_contig_cleanup_ctx(common->alloc_ctx); | |
6ffefff5 MK |
956 | } |
957 | ||
958 | /* Decrement channel usrs counter */ | |
959 | ch->usrs--; | |
960 | ||
6ffefff5 | 961 | /* Close the priority */ |
ffb4877b | 962 | v4l2_prio_close(&ch->prio, fh->prio); |
6ffefff5 MK |
963 | |
964 | if (fh->initialized) | |
965 | ch->initialized = 0; | |
966 | ||
7224679a | 967 | mutex_unlock(&common->lock); |
6ffefff5 MK |
968 | filep->private_data = NULL; |
969 | kfree(fh); | |
970 | return 0; | |
971 | } | |
972 | ||
973 | /** | |
974 | * vpif_reqbufs() - request buffer handler | |
975 | * @file: file ptr | |
976 | * @priv: file handle | |
977 | * @reqbuf: request buffer structure ptr | |
978 | */ | |
979 | static int vpif_reqbufs(struct file *file, void *priv, | |
980 | struct v4l2_requestbuffers *reqbuf) | |
981 | { | |
982 | struct vpif_fh *fh = priv; | |
983 | struct channel_obj *ch = fh->channel; | |
984 | struct common_obj *common; | |
985 | u8 index = 0; | |
60aa38d8 | 986 | struct vb2_queue *q; |
b4a711e7 | 987 | int ret; |
6ffefff5 MK |
988 | |
989 | vpif_dbg(2, debug, "vpif_reqbufs\n"); | |
990 | ||
991 | /** | |
992 | * This file handle has not initialized the channel, | |
993 | * It is not allowed to do settings | |
994 | */ | |
995 | if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) | |
996 | || (VPIF_CHANNEL1_VIDEO == ch->channel_id)) { | |
997 | if (!fh->initialized) { | |
998 | vpif_dbg(1, debug, "Channel Busy\n"); | |
999 | return -EBUSY; | |
1000 | } | |
1001 | } | |
1002 | ||
764af39a | 1003 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != reqbuf->type || !vpif_dev) |
6ffefff5 MK |
1004 | return -EINVAL; |
1005 | ||
1006 | index = VPIF_VIDEO_INDEX; | |
1007 | ||
1008 | common = &ch->common[index]; | |
1009 | ||
46656afa HV |
1010 | if (0 != common->io_usrs) |
1011 | return -EBUSY; | |
6ffefff5 | 1012 | |
60aa38d8 LP |
1013 | /* Initialize videobuf2 queue as per the buffer type */ |
1014 | common->alloc_ctx = vb2_dma_contig_init_ctx(vpif_dev); | |
94b76a88 | 1015 | if (IS_ERR(common->alloc_ctx)) { |
60aa38d8 | 1016 | vpif_err("Failed to get the context\n"); |
94b76a88 | 1017 | return PTR_ERR(common->alloc_ctx); |
60aa38d8 LP |
1018 | } |
1019 | q = &common->buffer_queue; | |
1020 | q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1021 | q->io_modes = VB2_MMAP | VB2_USERPTR; | |
1022 | q->drv_priv = fh; | |
1023 | q->ops = &video_qops; | |
1024 | q->mem_ops = &vb2_dma_contig_memops; | |
1025 | q->buf_struct_size = sizeof(struct vpif_cap_buffer); | |
6aa69f99 | 1026 | q->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
60aa38d8 | 1027 | |
b4a711e7 LP |
1028 | ret = vb2_queue_init(q); |
1029 | if (ret) { | |
1030 | vpif_err("vpif_capture: vb2_queue_init() failed\n"); | |
1031 | vb2_dma_contig_cleanup_ctx(common->alloc_ctx); | |
1032 | return ret; | |
1033 | } | |
6ffefff5 MK |
1034 | /* Set io allowed member of file handle to TRUE */ |
1035 | fh->io_allowed[index] = 1; | |
1036 | /* Increment io usrs member of channel object to 1 */ | |
1037 | common->io_usrs = 1; | |
1038 | /* Store type of memory requested in channel object */ | |
1039 | common->memory = reqbuf->memory; | |
1040 | INIT_LIST_HEAD(&common->dma_queue); | |
1041 | ||
1042 | /* Allocate buffers */ | |
60aa38d8 | 1043 | return vb2_reqbufs(&common->buffer_queue, reqbuf); |
6ffefff5 MK |
1044 | } |
1045 | ||
1046 | /** | |
1047 | * vpif_querybuf() - query buffer handler | |
1048 | * @file: file ptr | |
1049 | * @priv: file handle | |
1050 | * @buf: v4l2 buffer structure ptr | |
1051 | */ | |
1052 | static int vpif_querybuf(struct file *file, void *priv, | |
1053 | struct v4l2_buffer *buf) | |
1054 | { | |
1055 | struct vpif_fh *fh = priv; | |
1056 | struct channel_obj *ch = fh->channel; | |
1057 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1058 | ||
1059 | vpif_dbg(2, debug, "vpif_querybuf\n"); | |
1060 | ||
1061 | if (common->fmt.type != buf->type) | |
1062 | return -EINVAL; | |
1063 | ||
1064 | if (common->memory != V4L2_MEMORY_MMAP) { | |
1065 | vpif_dbg(1, debug, "Invalid memory\n"); | |
1066 | return -EINVAL; | |
1067 | } | |
1068 | ||
60aa38d8 | 1069 | return vb2_querybuf(&common->buffer_queue, buf); |
6ffefff5 MK |
1070 | } |
1071 | ||
1072 | /** | |
1073 | * vpif_qbuf() - query buffer handler | |
1074 | * @file: file ptr | |
1075 | * @priv: file handle | |
1076 | * @buf: v4l2 buffer structure ptr | |
1077 | */ | |
1078 | static int vpif_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf) | |
1079 | { | |
1080 | ||
1081 | struct vpif_fh *fh = priv; | |
1082 | struct channel_obj *ch = fh->channel; | |
1083 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1084 | struct v4l2_buffer tbuf = *buf; | |
6ffefff5 MK |
1085 | |
1086 | vpif_dbg(2, debug, "vpif_qbuf\n"); | |
1087 | ||
1088 | if (common->fmt.type != tbuf.type) { | |
1089 | vpif_err("invalid buffer type\n"); | |
1090 | return -EINVAL; | |
1091 | } | |
1092 | ||
1093 | if (!fh->io_allowed[VPIF_VIDEO_INDEX]) { | |
60aa38d8 | 1094 | vpif_err("fh io not allowed\n"); |
6ffefff5 MK |
1095 | return -EACCES; |
1096 | } | |
1097 | ||
60aa38d8 | 1098 | return vb2_qbuf(&common->buffer_queue, buf); |
6ffefff5 MK |
1099 | } |
1100 | ||
1101 | /** | |
1102 | * vpif_dqbuf() - query buffer handler | |
1103 | * @file: file ptr | |
1104 | * @priv: file handle | |
1105 | * @buf: v4l2 buffer structure ptr | |
1106 | */ | |
1107 | static int vpif_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf) | |
1108 | { | |
1109 | struct vpif_fh *fh = priv; | |
1110 | struct channel_obj *ch = fh->channel; | |
1111 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1112 | ||
1113 | vpif_dbg(2, debug, "vpif_dqbuf\n"); | |
1114 | ||
60aa38d8 LP |
1115 | return vb2_dqbuf(&common->buffer_queue, buf, |
1116 | (file->f_flags & O_NONBLOCK)); | |
6ffefff5 MK |
1117 | } |
1118 | ||
1119 | /** | |
1120 | * vpif_streamon() - streamon handler | |
1121 | * @file: file ptr | |
1122 | * @priv: file handle | |
1123 | * @buftype: v4l2 buffer type | |
1124 | */ | |
1125 | static int vpif_streamon(struct file *file, void *priv, | |
1126 | enum v4l2_buf_type buftype) | |
1127 | { | |
1128 | ||
6ffefff5 MK |
1129 | struct vpif_fh *fh = priv; |
1130 | struct channel_obj *ch = fh->channel; | |
1131 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1132 | struct channel_obj *oth_ch = vpif_obj.dev[!ch->channel_id]; | |
1133 | struct vpif_params *vpif; | |
6ffefff5 MK |
1134 | int ret = 0; |
1135 | ||
1136 | vpif_dbg(2, debug, "vpif_streamon\n"); | |
1137 | ||
1138 | vpif = &ch->vpifparams; | |
1139 | ||
1140 | if (buftype != V4L2_BUF_TYPE_VIDEO_CAPTURE) { | |
1141 | vpif_dbg(1, debug, "buffer type not supported\n"); | |
1142 | return -EINVAL; | |
1143 | } | |
1144 | ||
1145 | /* If file handle is not allowed IO, return error */ | |
1146 | if (!fh->io_allowed[VPIF_VIDEO_INDEX]) { | |
1147 | vpif_dbg(1, debug, "io not allowed\n"); | |
1148 | return -EACCES; | |
1149 | } | |
1150 | ||
1151 | /* If Streaming is already started, return error */ | |
1152 | if (common->started) { | |
1153 | vpif_dbg(1, debug, "channel->started\n"); | |
1154 | return -EBUSY; | |
1155 | } | |
1156 | ||
1157 | if ((ch->channel_id == VPIF_CHANNEL0_VIDEO && | |
1158 | oth_ch->common[VPIF_VIDEO_INDEX].started && | |
1159 | vpif->std_info.ycmux_mode == 0) || | |
1160 | ((ch->channel_id == VPIF_CHANNEL1_VIDEO) && | |
1161 | (2 == oth_ch->common[VPIF_VIDEO_INDEX].started))) { | |
1162 | vpif_dbg(1, debug, "other channel is being used\n"); | |
1163 | return -EBUSY; | |
1164 | } | |
1165 | ||
1166 | ret = vpif_check_format(ch, &common->fmt.fmt.pix, 0); | |
1167 | if (ret) | |
1168 | return ret; | |
1169 | ||
1170 | /* Enable streamon on the sub device */ | |
178cce12 | 1171 | ret = v4l2_subdev_call(ch->sd, video, s_stream, 1); |
6ffefff5 | 1172 | |
178cce12 | 1173 | if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV) { |
6ffefff5 MK |
1174 | vpif_dbg(1, debug, "stream on failed in subdev\n"); |
1175 | return ret; | |
1176 | } | |
1177 | ||
60aa38d8 LP |
1178 | /* Call vb2_streamon to start streaming in videobuf2 */ |
1179 | ret = vb2_streamon(&common->buffer_queue, buftype); | |
6ffefff5 | 1180 | if (ret) { |
60aa38d8 | 1181 | vpif_dbg(1, debug, "vb2_streamon\n"); |
6ffefff5 MK |
1182 | return ret; |
1183 | } | |
1184 | ||
6ffefff5 MK |
1185 | return ret; |
1186 | } | |
1187 | ||
1188 | /** | |
1189 | * vpif_streamoff() - streamoff handler | |
1190 | * @file: file ptr | |
1191 | * @priv: file handle | |
1192 | * @buftype: v4l2 buffer type | |
1193 | */ | |
1194 | static int vpif_streamoff(struct file *file, void *priv, | |
1195 | enum v4l2_buf_type buftype) | |
1196 | { | |
1197 | ||
1198 | struct vpif_fh *fh = priv; | |
1199 | struct channel_obj *ch = fh->channel; | |
1200 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1201 | int ret; | |
1202 | ||
1203 | vpif_dbg(2, debug, "vpif_streamoff\n"); | |
1204 | ||
1205 | if (buftype != V4L2_BUF_TYPE_VIDEO_CAPTURE) { | |
1206 | vpif_dbg(1, debug, "buffer type not supported\n"); | |
1207 | return -EINVAL; | |
1208 | } | |
1209 | ||
1210 | /* If io is allowed for this file handle, return error */ | |
1211 | if (!fh->io_allowed[VPIF_VIDEO_INDEX]) { | |
1212 | vpif_dbg(1, debug, "io not allowed\n"); | |
1213 | return -EACCES; | |
1214 | } | |
1215 | ||
1216 | /* If streaming is not started, return error */ | |
1217 | if (!common->started) { | |
1218 | vpif_dbg(1, debug, "channel->started\n"); | |
1219 | return -EINVAL; | |
1220 | } | |
1221 | ||
6ffefff5 MK |
1222 | /* disable channel */ |
1223 | if (VPIF_CHANNEL0_VIDEO == ch->channel_id) { | |
1224 | enable_channel0(0); | |
1225 | channel0_intr_enable(0); | |
1226 | } else { | |
1227 | enable_channel1(0); | |
1228 | channel1_intr_enable(0); | |
1229 | } | |
1230 | ||
1231 | common->started = 0; | |
1232 | ||
178cce12 | 1233 | ret = v4l2_subdev_call(ch->sd, video, s_stream, 0); |
6ffefff5 | 1234 | |
178cce12 | 1235 | if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV) |
6ffefff5 MK |
1236 | vpif_dbg(1, debug, "stream off failed in subdev\n"); |
1237 | ||
60aa38d8 | 1238 | return vb2_streamoff(&common->buffer_queue, buftype); |
6ffefff5 MK |
1239 | } |
1240 | ||
1241 | /** | |
178cce12 HV |
1242 | * vpif_input_to_subdev() - Maps input to sub device |
1243 | * @vpif_cfg - global config ptr | |
1244 | * @chan_cfg - channel config ptr | |
6ffefff5 | 1245 | * @input_index - Given input index from application |
6ffefff5 MK |
1246 | * |
1247 | * lookup the sub device information for a given input index. | |
1248 | * we report all the inputs to application. inputs table also | |
1249 | * has sub device name for the each input | |
1250 | */ | |
178cce12 HV |
1251 | static int vpif_input_to_subdev( |
1252 | struct vpif_capture_config *vpif_cfg, | |
1253 | struct vpif_capture_chan_config *chan_cfg, | |
1254 | int input_index) | |
6ffefff5 | 1255 | { |
178cce12 HV |
1256 | struct vpif_subdev_info *subdev_info; |
1257 | const char *subdev_name; | |
6ffefff5 MK |
1258 | int i; |
1259 | ||
178cce12 | 1260 | vpif_dbg(2, debug, "vpif_input_to_subdev\n"); |
6ffefff5 | 1261 | |
178cce12 HV |
1262 | subdev_name = chan_cfg->inputs[input_index].subdev_name; |
1263 | if (subdev_name == NULL) | |
1264 | return -1; | |
6ffefff5 MK |
1265 | |
1266 | /* loop through the sub device list to get the sub device info */ | |
1267 | for (i = 0; i < vpif_cfg->subdev_count; i++) { | |
1268 | subdev_info = &vpif_cfg->subdev_info[i]; | |
1269 | if (!strcmp(subdev_info->name, subdev_name)) | |
178cce12 | 1270 | return i; |
6ffefff5 | 1271 | } |
178cce12 HV |
1272 | return -1; |
1273 | } | |
6ffefff5 | 1274 | |
178cce12 HV |
1275 | /** |
1276 | * vpif_set_input() - Select an input | |
1277 | * @vpif_cfg - global config ptr | |
1278 | * @ch - channel | |
1279 | * @_index - Given input index from application | |
1280 | * | |
1281 | * Select the given input. | |
1282 | */ | |
1283 | static int vpif_set_input( | |
1284 | struct vpif_capture_config *vpif_cfg, | |
1285 | struct channel_obj *ch, | |
1286 | int index) | |
1287 | { | |
1288 | struct vpif_capture_chan_config *chan_cfg = | |
1289 | &vpif_cfg->chan_config[ch->channel_id]; | |
1290 | struct vpif_subdev_info *subdev_info = NULL; | |
1291 | struct v4l2_subdev *sd = NULL; | |
1292 | u32 input = 0, output = 0; | |
1293 | int sd_index; | |
1294 | int ret; | |
6ffefff5 | 1295 | |
178cce12 HV |
1296 | sd_index = vpif_input_to_subdev(vpif_cfg, chan_cfg, index); |
1297 | if (sd_index >= 0) { | |
1298 | sd = vpif_obj.sd[sd_index]; | |
1299 | subdev_info = &vpif_cfg->subdev_info[sd_index]; | |
1300 | } | |
6ffefff5 | 1301 | |
178cce12 HV |
1302 | /* first setup input path from sub device to vpif */ |
1303 | if (sd && vpif_cfg->setup_input_path) { | |
1304 | ret = vpif_cfg->setup_input_path(ch->channel_id, | |
1305 | subdev_info->name); | |
1306 | if (ret < 0) { | |
1307 | vpif_dbg(1, debug, "couldn't setup input path for the" \ | |
1308 | " sub device %s, for input index %d\n", | |
1309 | subdev_info->name, index); | |
1310 | return ret; | |
1311 | } | |
1312 | } | |
1313 | ||
1314 | if (sd) { | |
1315 | input = chan_cfg->inputs[index].input_route; | |
1316 | output = chan_cfg->inputs[index].output_route; | |
1317 | ret = v4l2_subdev_call(sd, video, s_routing, | |
1318 | input, output, 0); | |
1319 | if (ret < 0 && ret != -ENOIOCTLCMD) { | |
1320 | vpif_dbg(1, debug, "Failed to set input\n"); | |
1321 | return ret; | |
1322 | } | |
1323 | } | |
1324 | ch->input_idx = index; | |
1325 | ch->sd = sd; | |
1326 | /* copy interface parameters to vpif */ | |
0d4f35f3 | 1327 | ch->vpifparams.iface = chan_cfg->vpif_if; |
178cce12 HV |
1328 | |
1329 | /* update tvnorms from the sub device input info */ | |
1330 | ch->video_dev->tvnorms = chan_cfg->inputs[index].input.std; | |
1331 | return 0; | |
6ffefff5 MK |
1332 | } |
1333 | ||
1334 | /** | |
1335 | * vpif_querystd() - querystd handler | |
1336 | * @file: file ptr | |
1337 | * @priv: file handle | |
1338 | * @std_id: ptr to std id | |
1339 | * | |
1340 | * This function is called to detect standard at the selected input | |
1341 | */ | |
1342 | static int vpif_querystd(struct file *file, void *priv, v4l2_std_id *std_id) | |
1343 | { | |
1344 | struct vpif_fh *fh = priv; | |
1345 | struct channel_obj *ch = fh->channel; | |
6ffefff5 MK |
1346 | int ret = 0; |
1347 | ||
1348 | vpif_dbg(2, debug, "vpif_querystd\n"); | |
1349 | ||
6ffefff5 | 1350 | /* Call querystd function of decoder device */ |
178cce12 | 1351 | ret = v4l2_subdev_call(ch->sd, video, querystd, std_id); |
6ffefff5 | 1352 | |
178cce12 HV |
1353 | if (ret == -ENOIOCTLCMD || ret == -ENODEV) |
1354 | return -ENODATA; | |
1355 | if (ret) { | |
1356 | vpif_dbg(1, debug, "Failed to query standard for sub devices\n"); | |
1357 | return ret; | |
1358 | } | |
1359 | ||
1360 | return 0; | |
6ffefff5 MK |
1361 | } |
1362 | ||
1363 | /** | |
1364 | * vpif_g_std() - get STD handler | |
1365 | * @file: file ptr | |
1366 | * @priv: file handle | |
1367 | * @std_id: ptr to std id | |
1368 | */ | |
1369 | static int vpif_g_std(struct file *file, void *priv, v4l2_std_id *std) | |
1370 | { | |
1371 | struct vpif_fh *fh = priv; | |
1372 | struct channel_obj *ch = fh->channel; | |
1373 | ||
1374 | vpif_dbg(2, debug, "vpif_g_std\n"); | |
1375 | ||
1376 | *std = ch->video.stdid; | |
1377 | return 0; | |
1378 | } | |
1379 | ||
1380 | /** | |
1381 | * vpif_s_std() - set STD handler | |
1382 | * @file: file ptr | |
1383 | * @priv: file handle | |
1384 | * @std_id: ptr to std id | |
1385 | */ | |
314527ac | 1386 | static int vpif_s_std(struct file *file, void *priv, v4l2_std_id std_id) |
6ffefff5 MK |
1387 | { |
1388 | struct vpif_fh *fh = priv; | |
1389 | struct channel_obj *ch = fh->channel; | |
1390 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1391 | int ret = 0; | |
1392 | ||
1393 | vpif_dbg(2, debug, "vpif_s_std\n"); | |
1394 | ||
1395 | if (common->started) { | |
1396 | vpif_err("streaming in progress\n"); | |
1397 | return -EBUSY; | |
1398 | } | |
1399 | ||
1400 | if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) || | |
1401 | (VPIF_CHANNEL1_VIDEO == ch->channel_id)) { | |
1402 | if (!fh->initialized) { | |
1403 | vpif_dbg(1, debug, "Channel Busy\n"); | |
1404 | return -EBUSY; | |
1405 | } | |
1406 | } | |
1407 | ||
ffb4877b | 1408 | ret = v4l2_prio_check(&ch->prio, fh->prio); |
6ffefff5 MK |
1409 | if (0 != ret) |
1410 | return ret; | |
1411 | ||
1412 | fh->initialized = 1; | |
1413 | ||
1414 | /* Call encoder subdevice function to set the standard */ | |
314527ac | 1415 | ch->video.stdid = std_id; |
0598c17b | 1416 | memset(&ch->video.dv_timings, 0, sizeof(ch->video.dv_timings)); |
6ffefff5 MK |
1417 | |
1418 | /* Get the information about the standard */ | |
1419 | if (vpif_update_std_info(ch)) { | |
6ffefff5 | 1420 | vpif_err("Error getting the standard info\n"); |
46656afa | 1421 | return -EINVAL; |
6ffefff5 MK |
1422 | } |
1423 | ||
1424 | /* Configure the default format information */ | |
1425 | vpif_config_format(ch); | |
1426 | ||
1427 | /* set standard in the sub device */ | |
314527ac | 1428 | ret = v4l2_subdev_call(ch->sd, core, s_std, std_id); |
178cce12 | 1429 | if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV) { |
6ffefff5 | 1430 | vpif_dbg(1, debug, "Failed to set standard for sub devices\n"); |
178cce12 HV |
1431 | return ret; |
1432 | } | |
1433 | return 0; | |
6ffefff5 MK |
1434 | } |
1435 | ||
1436 | /** | |
1437 | * vpif_enum_input() - ENUMINPUT handler | |
1438 | * @file: file ptr | |
1439 | * @priv: file handle | |
1440 | * @input: ptr to input structure | |
1441 | */ | |
1442 | static int vpif_enum_input(struct file *file, void *priv, | |
1443 | struct v4l2_input *input) | |
1444 | { | |
1445 | ||
1446 | struct vpif_capture_config *config = vpif_dev->platform_data; | |
1447 | struct vpif_capture_chan_config *chan_cfg; | |
1448 | struct vpif_fh *fh = priv; | |
1449 | struct channel_obj *ch = fh->channel; | |
1450 | ||
1451 | chan_cfg = &config->chan_config[ch->channel_id]; | |
1452 | ||
1453 | if (input->index >= chan_cfg->input_count) { | |
1454 | vpif_dbg(1, debug, "Invalid input index\n"); | |
1455 | return -EINVAL; | |
1456 | } | |
1457 | ||
1458 | memcpy(input, &chan_cfg->inputs[input->index].input, | |
1459 | sizeof(*input)); | |
1460 | return 0; | |
1461 | } | |
1462 | ||
1463 | /** | |
1464 | * vpif_g_input() - Get INPUT handler | |
1465 | * @file: file ptr | |
1466 | * @priv: file handle | |
1467 | * @index: ptr to input index | |
1468 | */ | |
1469 | static int vpif_g_input(struct file *file, void *priv, unsigned int *index) | |
1470 | { | |
1471 | struct vpif_fh *fh = priv; | |
1472 | struct channel_obj *ch = fh->channel; | |
6ffefff5 | 1473 | |
6f47c6c6 | 1474 | *index = ch->input_idx; |
6ffefff5 MK |
1475 | return 0; |
1476 | } | |
1477 | ||
1478 | /** | |
1479 | * vpif_s_input() - Set INPUT handler | |
1480 | * @file: file ptr | |
1481 | * @priv: file handle | |
1482 | * @index: input index | |
1483 | */ | |
1484 | static int vpif_s_input(struct file *file, void *priv, unsigned int index) | |
1485 | { | |
1486 | struct vpif_capture_config *config = vpif_dev->platform_data; | |
1487 | struct vpif_capture_chan_config *chan_cfg; | |
1488 | struct vpif_fh *fh = priv; | |
1489 | struct channel_obj *ch = fh->channel; | |
1490 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
178cce12 | 1491 | int ret; |
6ffefff5 MK |
1492 | |
1493 | chan_cfg = &config->chan_config[ch->channel_id]; | |
1494 | ||
7aaad131 HV |
1495 | if (index >= chan_cfg->input_count) |
1496 | return -EINVAL; | |
1497 | ||
6ffefff5 MK |
1498 | if (common->started) { |
1499 | vpif_err("Streaming in progress\n"); | |
1500 | return -EBUSY; | |
1501 | } | |
1502 | ||
1503 | if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) || | |
1504 | (VPIF_CHANNEL1_VIDEO == ch->channel_id)) { | |
1505 | if (!fh->initialized) { | |
1506 | vpif_dbg(1, debug, "Channel Busy\n"); | |
1507 | return -EBUSY; | |
1508 | } | |
1509 | } | |
1510 | ||
ffb4877b | 1511 | ret = v4l2_prio_check(&ch->prio, fh->prio); |
6ffefff5 MK |
1512 | if (0 != ret) |
1513 | return ret; | |
1514 | ||
1515 | fh->initialized = 1; | |
178cce12 | 1516 | return vpif_set_input(config, ch, index); |
6ffefff5 MK |
1517 | } |
1518 | ||
1519 | /** | |
1520 | * vpif_enum_fmt_vid_cap() - ENUM_FMT handler | |
1521 | * @file: file ptr | |
1522 | * @priv: file handle | |
1523 | * @index: input index | |
1524 | */ | |
1525 | static int vpif_enum_fmt_vid_cap(struct file *file, void *priv, | |
1526 | struct v4l2_fmtdesc *fmt) | |
1527 | { | |
1528 | struct vpif_fh *fh = priv; | |
1529 | struct channel_obj *ch = fh->channel; | |
1530 | ||
1531 | if (fmt->index != 0) { | |
1532 | vpif_dbg(1, debug, "Invalid format index\n"); | |
1533 | return -EINVAL; | |
1534 | } | |
1535 | ||
1536 | /* Fill in the information about format */ | |
1537 | if (ch->vpifparams.iface.if_type == VPIF_IF_RAW_BAYER) { | |
1538 | fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1539 | strcpy(fmt->description, "Raw Mode -Bayer Pattern GrRBGb"); | |
1540 | fmt->pixelformat = V4L2_PIX_FMT_SBGGR8; | |
1541 | } else { | |
1542 | fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1543 | strcpy(fmt->description, "YCbCr4:2:2 YC Planar"); | |
1544 | fmt->pixelformat = V4L2_PIX_FMT_YUV422P; | |
1545 | } | |
1546 | return 0; | |
1547 | } | |
1548 | ||
1549 | /** | |
1550 | * vpif_try_fmt_vid_cap() - TRY_FMT handler | |
1551 | * @file: file ptr | |
1552 | * @priv: file handle | |
1553 | * @fmt: ptr to v4l2 format structure | |
1554 | */ | |
1555 | static int vpif_try_fmt_vid_cap(struct file *file, void *priv, | |
1556 | struct v4l2_format *fmt) | |
1557 | { | |
1558 | struct vpif_fh *fh = priv; | |
1559 | struct channel_obj *ch = fh->channel; | |
1560 | struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; | |
1561 | ||
1562 | return vpif_check_format(ch, pixfmt, 1); | |
1563 | } | |
1564 | ||
1565 | ||
1566 | /** | |
1567 | * vpif_g_fmt_vid_cap() - Set INPUT handler | |
1568 | * @file: file ptr | |
1569 | * @priv: file handle | |
1570 | * @fmt: ptr to v4l2 format structure | |
1571 | */ | |
1572 | static int vpif_g_fmt_vid_cap(struct file *file, void *priv, | |
1573 | struct v4l2_format *fmt) | |
1574 | { | |
1575 | struct vpif_fh *fh = priv; | |
1576 | struct channel_obj *ch = fh->channel; | |
1577 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1578 | ||
1579 | /* Check the validity of the buffer type */ | |
1580 | if (common->fmt.type != fmt->type) | |
1581 | return -EINVAL; | |
1582 | ||
1583 | /* Fill in the information about format */ | |
6ffefff5 | 1584 | *fmt = common->fmt; |
6ffefff5 MK |
1585 | return 0; |
1586 | } | |
1587 | ||
1588 | /** | |
1589 | * vpif_s_fmt_vid_cap() - Set FMT handler | |
1590 | * @file: file ptr | |
1591 | * @priv: file handle | |
1592 | * @fmt: ptr to v4l2 format structure | |
1593 | */ | |
1594 | static int vpif_s_fmt_vid_cap(struct file *file, void *priv, | |
1595 | struct v4l2_format *fmt) | |
1596 | { | |
1597 | struct vpif_fh *fh = priv; | |
1598 | struct channel_obj *ch = fh->channel; | |
1599 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1600 | struct v4l2_pix_format *pixfmt; | |
1601 | int ret = 0; | |
1602 | ||
2c0ddd17 | 1603 | vpif_dbg(2, debug, "%s\n", __func__); |
6ffefff5 MK |
1604 | |
1605 | /* If streaming is started, return error */ | |
1606 | if (common->started) { | |
1607 | vpif_dbg(1, debug, "Streaming is started\n"); | |
1608 | return -EBUSY; | |
1609 | } | |
1610 | ||
1611 | if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) || | |
1612 | (VPIF_CHANNEL1_VIDEO == ch->channel_id)) { | |
1613 | if (!fh->initialized) { | |
1614 | vpif_dbg(1, debug, "Channel Busy\n"); | |
1615 | return -EBUSY; | |
1616 | } | |
1617 | } | |
1618 | ||
ffb4877b | 1619 | ret = v4l2_prio_check(&ch->prio, fh->prio); |
6ffefff5 MK |
1620 | if (0 != ret) |
1621 | return ret; | |
1622 | ||
1623 | fh->initialized = 1; | |
1624 | ||
1625 | pixfmt = &fmt->fmt.pix; | |
1626 | /* Check for valid field format */ | |
1627 | ret = vpif_check_format(ch, pixfmt, 0); | |
1628 | ||
1629 | if (ret) | |
1630 | return ret; | |
1631 | /* store the format in the channel object */ | |
6ffefff5 | 1632 | common->fmt = *fmt; |
6ffefff5 MK |
1633 | return 0; |
1634 | } | |
1635 | ||
1636 | /** | |
1637 | * vpif_querycap() - QUERYCAP handler | |
1638 | * @file: file ptr | |
1639 | * @priv: file handle | |
1640 | * @cap: ptr to v4l2_capability structure | |
1641 | */ | |
1642 | static int vpif_querycap(struct file *file, void *priv, | |
1643 | struct v4l2_capability *cap) | |
1644 | { | |
1645 | struct vpif_capture_config *config = vpif_dev->platform_data; | |
1646 | ||
626d533f LP |
1647 | cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; |
1648 | cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; | |
1649 | snprintf(cap->driver, sizeof(cap->driver), "%s", dev_name(vpif_dev)); | |
1650 | snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s", | |
1651 | dev_name(vpif_dev)); | |
6ffefff5 MK |
1652 | strlcpy(cap->card, config->card_name, sizeof(cap->card)); |
1653 | ||
1654 | return 0; | |
1655 | } | |
1656 | ||
1657 | /** | |
1658 | * vpif_g_priority() - get priority handler | |
1659 | * @file: file ptr | |
1660 | * @priv: file handle | |
1661 | * @prio: ptr to v4l2_priority structure | |
1662 | */ | |
1663 | static int vpif_g_priority(struct file *file, void *priv, | |
1664 | enum v4l2_priority *prio) | |
1665 | { | |
1666 | struct vpif_fh *fh = priv; | |
1667 | struct channel_obj *ch = fh->channel; | |
1668 | ||
1669 | *prio = v4l2_prio_max(&ch->prio); | |
1670 | ||
1671 | return 0; | |
1672 | } | |
1673 | ||
1674 | /** | |
1675 | * vpif_s_priority() - set priority handler | |
1676 | * @file: file ptr | |
1677 | * @priv: file handle | |
1678 | * @prio: ptr to v4l2_priority structure | |
1679 | */ | |
1680 | static int vpif_s_priority(struct file *file, void *priv, enum v4l2_priority p) | |
1681 | { | |
1682 | struct vpif_fh *fh = priv; | |
1683 | struct channel_obj *ch = fh->channel; | |
1684 | ||
1685 | return v4l2_prio_change(&ch->prio, &fh->prio, p); | |
1686 | } | |
1687 | ||
1688 | /** | |
1689 | * vpif_cropcap() - cropcap handler | |
1690 | * @file: file ptr | |
1691 | * @priv: file handle | |
1692 | * @crop: ptr to v4l2_cropcap structure | |
1693 | */ | |
1694 | static int vpif_cropcap(struct file *file, void *priv, | |
1695 | struct v4l2_cropcap *crop) | |
1696 | { | |
1697 | struct vpif_fh *fh = priv; | |
1698 | struct channel_obj *ch = fh->channel; | |
1699 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1700 | ||
1701 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != crop->type) | |
1702 | return -EINVAL; | |
1703 | ||
1704 | crop->bounds.left = 0; | |
1705 | crop->bounds.top = 0; | |
1706 | crop->bounds.height = common->height; | |
1707 | crop->bounds.width = common->width; | |
1708 | crop->defrect = crop->bounds; | |
1709 | return 0; | |
1710 | } | |
1711 | ||
40c8bcea | 1712 | /** |
0598c17b | 1713 | * vpif_enum_dv_timings() - ENUM_DV_TIMINGS handler |
40c8bcea MR |
1714 | * @file: file ptr |
1715 | * @priv: file handle | |
0598c17b | 1716 | * @timings: input timings |
40c8bcea | 1717 | */ |
0598c17b HV |
1718 | static int |
1719 | vpif_enum_dv_timings(struct file *file, void *priv, | |
1720 | struct v4l2_enum_dv_timings *timings) | |
40c8bcea MR |
1721 | { |
1722 | struct vpif_fh *fh = priv; | |
1723 | struct channel_obj *ch = fh->channel; | |
178cce12 | 1724 | int ret; |
40c8bcea | 1725 | |
178cce12 | 1726 | ret = v4l2_subdev_call(ch->sd, video, enum_dv_timings, timings); |
e070f1b4 | 1727 | if (ret == -ENOIOCTLCMD || ret == -ENODEV) |
178cce12 HV |
1728 | return -EINVAL; |
1729 | return ret; | |
40c8bcea MR |
1730 | } |
1731 | ||
1732 | /** | |
0598c17b | 1733 | * vpif_query_dv_timings() - QUERY_DV_TIMINGS handler |
40c8bcea MR |
1734 | * @file: file ptr |
1735 | * @priv: file handle | |
0598c17b | 1736 | * @timings: input timings |
40c8bcea | 1737 | */ |
0598c17b HV |
1738 | static int |
1739 | vpif_query_dv_timings(struct file *file, void *priv, | |
1740 | struct v4l2_dv_timings *timings) | |
40c8bcea MR |
1741 | { |
1742 | struct vpif_fh *fh = priv; | |
1743 | struct channel_obj *ch = fh->channel; | |
178cce12 | 1744 | int ret; |
40c8bcea | 1745 | |
178cce12 | 1746 | ret = v4l2_subdev_call(ch->sd, video, query_dv_timings, timings); |
e070f1b4 | 1747 | if (ret == -ENOIOCTLCMD || ret == -ENODEV) |
178cce12 HV |
1748 | return -ENODATA; |
1749 | return ret; | |
40c8bcea MR |
1750 | } |
1751 | ||
c027e165 MR |
1752 | /** |
1753 | * vpif_s_dv_timings() - S_DV_TIMINGS handler | |
1754 | * @file: file ptr | |
1755 | * @priv: file handle | |
1756 | * @timings: digital video timings | |
1757 | */ | |
1758 | static int vpif_s_dv_timings(struct file *file, void *priv, | |
1759 | struct v4l2_dv_timings *timings) | |
1760 | { | |
1761 | struct vpif_fh *fh = priv; | |
1762 | struct channel_obj *ch = fh->channel; | |
1763 | struct vpif_params *vpifparams = &ch->vpifparams; | |
1764 | struct vpif_channel_config_params *std_info = &vpifparams->std_info; | |
1765 | struct video_obj *vid_ch = &ch->video; | |
0598c17b | 1766 | struct v4l2_bt_timings *bt = &vid_ch->dv_timings.bt; |
c027e165 MR |
1767 | int ret; |
1768 | ||
1769 | if (timings->type != V4L2_DV_BT_656_1120) { | |
1770 | vpif_dbg(2, debug, "Timing type not defined\n"); | |
1771 | return -EINVAL; | |
1772 | } | |
1773 | ||
1774 | /* Configure subdevice timings, if any */ | |
178cce12 HV |
1775 | ret = v4l2_subdev_call(ch->sd, video, s_dv_timings, timings); |
1776 | if (ret == -ENOIOCTLCMD || ret == -ENODEV) | |
1777 | ret = 0; | |
c027e165 MR |
1778 | if (ret < 0) { |
1779 | vpif_dbg(2, debug, "Error setting custom DV timings\n"); | |
1780 | return ret; | |
1781 | } | |
1782 | ||
1783 | if (!(timings->bt.width && timings->bt.height && | |
1784 | (timings->bt.hbackporch || | |
1785 | timings->bt.hfrontporch || | |
1786 | timings->bt.hsync) && | |
1787 | timings->bt.vfrontporch && | |
1788 | (timings->bt.vbackporch || | |
1789 | timings->bt.vsync))) { | |
1790 | vpif_dbg(2, debug, "Timings for width, height, " | |
1791 | "horizontal back porch, horizontal sync, " | |
1792 | "horizontal front porch, vertical back porch, " | |
1793 | "vertical sync and vertical back porch " | |
1794 | "must be defined\n"); | |
1795 | return -EINVAL; | |
1796 | } | |
1797 | ||
0598c17b | 1798 | vid_ch->dv_timings = *timings; |
c027e165 MR |
1799 | |
1800 | /* Configure video port timings */ | |
1801 | ||
e3655268 | 1802 | std_info->eav2sav = V4L2_DV_BT_BLANKING_WIDTH(bt) - 8; |
c027e165 MR |
1803 | std_info->sav2eav = bt->width; |
1804 | ||
1805 | std_info->l1 = 1; | |
1806 | std_info->l3 = bt->vsync + bt->vbackporch + 1; | |
1807 | ||
e3655268 | 1808 | std_info->vsize = V4L2_DV_BT_FRAME_HEIGHT(bt); |
c027e165 MR |
1809 | if (bt->interlaced) { |
1810 | if (bt->il_vbackporch || bt->il_vfrontporch || bt->il_vsync) { | |
c027e165 MR |
1811 | std_info->l5 = std_info->vsize/2 - |
1812 | (bt->vfrontporch - 1); | |
1813 | std_info->l7 = std_info->vsize/2 + 1; | |
1814 | std_info->l9 = std_info->l7 + bt->il_vsync + | |
1815 | bt->il_vbackporch + 1; | |
1816 | std_info->l11 = std_info->vsize - | |
1817 | (bt->il_vfrontporch - 1); | |
1818 | } else { | |
1819 | vpif_dbg(2, debug, "Required timing values for " | |
1820 | "interlaced BT format missing\n"); | |
1821 | return -EINVAL; | |
1822 | } | |
1823 | } else { | |
c027e165 MR |
1824 | std_info->l5 = std_info->vsize - (bt->vfrontporch - 1); |
1825 | } | |
1826 | strncpy(std_info->name, "Custom timings BT656/1120", VPIF_MAX_NAME); | |
1827 | std_info->width = bt->width; | |
1828 | std_info->height = bt->height; | |
1829 | std_info->frm_fmt = bt->interlaced ? 0 : 1; | |
1830 | std_info->ycmux_mode = 0; | |
1831 | std_info->capture_format = 0; | |
1832 | std_info->vbi_supported = 0; | |
1833 | std_info->hd_sd = 1; | |
1834 | std_info->stdid = 0; | |
c027e165 MR |
1835 | |
1836 | vid_ch->stdid = 0; | |
c027e165 MR |
1837 | return 0; |
1838 | } | |
1839 | ||
1840 | /** | |
1841 | * vpif_g_dv_timings() - G_DV_TIMINGS handler | |
1842 | * @file: file ptr | |
1843 | * @priv: file handle | |
1844 | * @timings: digital video timings | |
1845 | */ | |
1846 | static int vpif_g_dv_timings(struct file *file, void *priv, | |
1847 | struct v4l2_dv_timings *timings) | |
1848 | { | |
1849 | struct vpif_fh *fh = priv; | |
1850 | struct channel_obj *ch = fh->channel; | |
1851 | struct video_obj *vid_ch = &ch->video; | |
c027e165 | 1852 | |
0598c17b | 1853 | *timings = vid_ch->dv_timings; |
c027e165 MR |
1854 | |
1855 | return 0; | |
1856 | } | |
1857 | ||
7036d6a7 MR |
1858 | /* |
1859 | * vpif_log_status() - Status information | |
1860 | * @file: file ptr | |
1861 | * @priv: file handle | |
1862 | * | |
1863 | * Returns zero. | |
1864 | */ | |
1865 | static int vpif_log_status(struct file *filep, void *priv) | |
1866 | { | |
1867 | /* status for sub devices */ | |
1868 | v4l2_device_call_all(&vpif_obj.v4l2_dev, 0, core, log_status); | |
1869 | ||
1870 | return 0; | |
1871 | } | |
1872 | ||
6ffefff5 MK |
1873 | /* vpif capture ioctl operations */ |
1874 | static const struct v4l2_ioctl_ops vpif_ioctl_ops = { | |
1875 | .vidioc_querycap = vpif_querycap, | |
1876 | .vidioc_g_priority = vpif_g_priority, | |
1877 | .vidioc_s_priority = vpif_s_priority, | |
1878 | .vidioc_enum_fmt_vid_cap = vpif_enum_fmt_vid_cap, | |
1879 | .vidioc_g_fmt_vid_cap = vpif_g_fmt_vid_cap, | |
1880 | .vidioc_s_fmt_vid_cap = vpif_s_fmt_vid_cap, | |
1881 | .vidioc_try_fmt_vid_cap = vpif_try_fmt_vid_cap, | |
1882 | .vidioc_enum_input = vpif_enum_input, | |
1883 | .vidioc_s_input = vpif_s_input, | |
1884 | .vidioc_g_input = vpif_g_input, | |
1885 | .vidioc_reqbufs = vpif_reqbufs, | |
1886 | .vidioc_querybuf = vpif_querybuf, | |
1887 | .vidioc_querystd = vpif_querystd, | |
1888 | .vidioc_s_std = vpif_s_std, | |
1889 | .vidioc_g_std = vpif_g_std, | |
1890 | .vidioc_qbuf = vpif_qbuf, | |
1891 | .vidioc_dqbuf = vpif_dqbuf, | |
1892 | .vidioc_streamon = vpif_streamon, | |
1893 | .vidioc_streamoff = vpif_streamoff, | |
1894 | .vidioc_cropcap = vpif_cropcap, | |
0598c17b HV |
1895 | .vidioc_enum_dv_timings = vpif_enum_dv_timings, |
1896 | .vidioc_query_dv_timings = vpif_query_dv_timings, | |
c027e165 MR |
1897 | .vidioc_s_dv_timings = vpif_s_dv_timings, |
1898 | .vidioc_g_dv_timings = vpif_g_dv_timings, | |
7036d6a7 | 1899 | .vidioc_log_status = vpif_log_status, |
6ffefff5 MK |
1900 | }; |
1901 | ||
1902 | /* vpif file operations */ | |
1903 | static struct v4l2_file_operations vpif_fops = { | |
1904 | .owner = THIS_MODULE, | |
1905 | .open = vpif_open, | |
1906 | .release = vpif_release, | |
46656afa | 1907 | .unlocked_ioctl = video_ioctl2, |
6ffefff5 MK |
1908 | .mmap = vpif_mmap, |
1909 | .poll = vpif_poll | |
1910 | }; | |
1911 | ||
1912 | /* vpif video template */ | |
1913 | static struct video_device vpif_video_template = { | |
1914 | .name = "vpif", | |
1915 | .fops = &vpif_fops, | |
1916 | .minor = -1, | |
1917 | .ioctl_ops = &vpif_ioctl_ops, | |
1918 | }; | |
1919 | ||
1920 | /** | |
1921 | * initialize_vpif() - Initialize vpif data structures | |
1922 | * | |
1923 | * Allocate memory for data structures and initialize them | |
1924 | */ | |
1925 | static int initialize_vpif(void) | |
1926 | { | |
1927 | int err = 0, i, j; | |
1928 | int free_channel_objects_index; | |
1929 | ||
1930 | /* Default number of buffers should be 3 */ | |
1931 | if ((ch0_numbuffers > 0) && | |
1932 | (ch0_numbuffers < config_params.min_numbuffers)) | |
1933 | ch0_numbuffers = config_params.min_numbuffers; | |
1934 | if ((ch1_numbuffers > 0) && | |
1935 | (ch1_numbuffers < config_params.min_numbuffers)) | |
1936 | ch1_numbuffers = config_params.min_numbuffers; | |
1937 | ||
1938 | /* Set buffer size to min buffers size if it is invalid */ | |
1939 | if (ch0_bufsize < config_params.min_bufsize[VPIF_CHANNEL0_VIDEO]) | |
1940 | ch0_bufsize = | |
1941 | config_params.min_bufsize[VPIF_CHANNEL0_VIDEO]; | |
1942 | if (ch1_bufsize < config_params.min_bufsize[VPIF_CHANNEL1_VIDEO]) | |
1943 | ch1_bufsize = | |
1944 | config_params.min_bufsize[VPIF_CHANNEL1_VIDEO]; | |
1945 | ||
1946 | config_params.numbuffers[VPIF_CHANNEL0_VIDEO] = ch0_numbuffers; | |
1947 | config_params.numbuffers[VPIF_CHANNEL1_VIDEO] = ch1_numbuffers; | |
1948 | if (ch0_numbuffers) { | |
1949 | config_params.channel_bufsize[VPIF_CHANNEL0_VIDEO] | |
1950 | = ch0_bufsize; | |
1951 | } | |
1952 | if (ch1_numbuffers) { | |
1953 | config_params.channel_bufsize[VPIF_CHANNEL1_VIDEO] | |
1954 | = ch1_bufsize; | |
1955 | } | |
1956 | ||
1957 | /* Allocate memory for six channel objects */ | |
1958 | for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { | |
1959 | vpif_obj.dev[i] = | |
1960 | kzalloc(sizeof(*vpif_obj.dev[i]), GFP_KERNEL); | |
1961 | /* If memory allocation fails, return error */ | |
1962 | if (!vpif_obj.dev[i]) { | |
1963 | free_channel_objects_index = i; | |
1964 | err = -ENOMEM; | |
1965 | goto vpif_init_free_channel_objects; | |
1966 | } | |
1967 | } | |
1968 | return 0; | |
1969 | ||
1970 | vpif_init_free_channel_objects: | |
1971 | for (j = 0; j < free_channel_objects_index; j++) | |
1972 | kfree(vpif_obj.dev[j]); | |
1973 | return err; | |
1974 | } | |
1975 | ||
873229e4 LP |
1976 | static int vpif_async_bound(struct v4l2_async_notifier *notifier, |
1977 | struct v4l2_subdev *subdev, | |
1978 | struct v4l2_async_subdev *asd) | |
1979 | { | |
1980 | int i; | |
1981 | ||
1982 | for (i = 0; i < vpif_obj.config->subdev_count; i++) | |
1983 | if (!strcmp(vpif_obj.config->subdev_info[i].name, | |
1984 | subdev->name)) { | |
1985 | vpif_obj.sd[i] = subdev; | |
1986 | return 0; | |
1987 | } | |
1988 | ||
1989 | return -EINVAL; | |
1990 | } | |
1991 | ||
1992 | static int vpif_probe_complete(void) | |
1993 | { | |
1994 | struct common_obj *common; | |
1995 | struct channel_obj *ch; | |
1996 | int i, j, err, k; | |
1997 | ||
1998 | for (j = 0; j < VPIF_CAPTURE_MAX_DEVICES; j++) { | |
1999 | ch = vpif_obj.dev[j]; | |
2000 | ch->channel_id = j; | |
2001 | common = &(ch->common[VPIF_VIDEO_INDEX]); | |
2002 | spin_lock_init(&common->irqlock); | |
2003 | mutex_init(&common->lock); | |
2004 | ch->video_dev->lock = &common->lock; | |
2005 | /* Initialize prio member of channel object */ | |
2006 | v4l2_prio_init(&ch->prio); | |
2007 | video_set_drvdata(ch->video_dev, ch); | |
2008 | ||
2009 | /* select input 0 */ | |
2010 | err = vpif_set_input(vpif_obj.config, ch, 0); | |
2011 | if (err) | |
2012 | goto probe_out; | |
2013 | ||
2014 | err = video_register_device(ch->video_dev, | |
2015 | VFL_TYPE_GRABBER, (j ? 1 : 0)); | |
2016 | if (err) | |
2017 | goto probe_out; | |
2018 | } | |
2019 | ||
2020 | v4l2_info(&vpif_obj.v4l2_dev, "VPIF capture driver initialized\n"); | |
2021 | return 0; | |
2022 | ||
2023 | probe_out: | |
2024 | for (k = 0; k < j; k++) { | |
2025 | /* Get the pointer to the channel object */ | |
2026 | ch = vpif_obj.dev[k]; | |
2027 | /* Unregister video device */ | |
2028 | video_unregister_device(ch->video_dev); | |
2029 | } | |
2030 | kfree(vpif_obj.sd); | |
2031 | for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { | |
2032 | ch = vpif_obj.dev[i]; | |
2033 | /* Note: does nothing if ch->video_dev == NULL */ | |
2034 | video_device_release(ch->video_dev); | |
2035 | } | |
2036 | v4l2_device_unregister(&vpif_obj.v4l2_dev); | |
2037 | ||
2038 | return err; | |
2039 | } | |
2040 | ||
2041 | static int vpif_async_complete(struct v4l2_async_notifier *notifier) | |
2042 | { | |
2043 | return vpif_probe_complete(); | |
2044 | } | |
2045 | ||
6ffefff5 MK |
2046 | /** |
2047 | * vpif_probe : This function probes the vpif capture driver | |
2048 | * @pdev: platform device pointer | |
2049 | * | |
2050 | * This creates device entries by register itself to the V4L2 driver and | |
2051 | * initializes fields of each channel objects | |
2052 | */ | |
2053 | static __init int vpif_probe(struct platform_device *pdev) | |
2054 | { | |
2055 | struct vpif_subdev_info *subdevdata; | |
873229e4 | 2056 | int i, j, err; |
5be452c3 | 2057 | int res_idx = 0; |
6ffefff5 MK |
2058 | struct i2c_adapter *i2c_adap; |
2059 | struct channel_obj *ch; | |
6ffefff5 MK |
2060 | struct video_device *vfd; |
2061 | struct resource *res; | |
2062 | int subdev_count; | |
764af39a | 2063 | size_t size; |
6ffefff5 MK |
2064 | |
2065 | vpif_dev = &pdev->dev; | |
2066 | ||
2067 | err = initialize_vpif(); | |
2068 | if (err) { | |
2069 | v4l2_err(vpif_dev->driver, "Error initializing vpif\n"); | |
2070 | return err; | |
2071 | } | |
2072 | ||
d2f7a1a2 HV |
2073 | err = v4l2_device_register(vpif_dev, &vpif_obj.v4l2_dev); |
2074 | if (err) { | |
2075 | v4l2_err(vpif_dev->driver, "Error registering v4l2 device\n"); | |
2076 | return err; | |
2077 | } | |
2078 | ||
5be452c3 | 2079 | while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, res_idx))) { |
a76a0b33 LP |
2080 | err = devm_request_irq(&pdev->dev, res->start, vpif_channel_isr, |
2081 | IRQF_SHARED, "VPIF_Capture", | |
2082 | (void *)(&vpif_obj.dev[res_idx]-> | |
2083 | channel_id)); | |
2084 | if (err) { | |
2085 | err = -EINVAL; | |
2086 | goto vpif_unregister; | |
6ffefff5 | 2087 | } |
5be452c3 | 2088 | res_idx++; |
6ffefff5 MK |
2089 | } |
2090 | ||
2091 | for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { | |
2092 | /* Get the pointer to the channel object */ | |
2093 | ch = vpif_obj.dev[i]; | |
2094 | /* Allocate memory for video device */ | |
2095 | vfd = video_device_alloc(); | |
2096 | if (NULL == vfd) { | |
2097 | for (j = 0; j < i; j++) { | |
2098 | ch = vpif_obj.dev[j]; | |
2099 | video_device_release(ch->video_dev); | |
2100 | } | |
2101 | err = -ENOMEM; | |
b2de4f25 | 2102 | goto vpif_unregister; |
6ffefff5 MK |
2103 | } |
2104 | ||
2105 | /* Initialize field of video device */ | |
2106 | *vfd = vpif_video_template; | |
2107 | vfd->v4l2_dev = &vpif_obj.v4l2_dev; | |
2108 | vfd->release = video_device_release; | |
2109 | snprintf(vfd->name, sizeof(vfd->name), | |
0a63172a | 2110 | "VPIF_Capture_DRIVER_V%s", |
64dc3c1a | 2111 | VPIF_CAPTURE_VERSION); |
6ffefff5 MK |
2112 | /* Set video_dev to the video device */ |
2113 | ch->video_dev = vfd; | |
2114 | } | |
2115 | ||
764af39a MH |
2116 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
2117 | if (res) { | |
2118 | size = resource_size(res); | |
2119 | /* The resources are divided into two equal memory and when we | |
2120 | * have HD output we can add them together | |
2121 | */ | |
2122 | for (j = 0; j < VPIF_CAPTURE_MAX_DEVICES; j++) { | |
2123 | ch = vpif_obj.dev[j]; | |
2124 | ch->channel_id = j; | |
2125 | /* only enabled if second resource exists */ | |
2126 | config_params.video_limit[ch->channel_id] = 0; | |
2127 | if (size) | |
2128 | config_params.video_limit[ch->channel_id] = | |
2129 | size/2; | |
2130 | } | |
2131 | } | |
2132 | ||
873229e4 | 2133 | vpif_obj.config = pdev->dev.platform_data; |
6ffefff5 | 2134 | |
873229e4 | 2135 | subdev_count = vpif_obj.config->subdev_count; |
1f8766b4 | 2136 | vpif_obj.sd = kzalloc(sizeof(struct v4l2_subdev *) * subdev_count, |
6ffefff5 MK |
2137 | GFP_KERNEL); |
2138 | if (vpif_obj.sd == NULL) { | |
2139 | vpif_err("unable to allocate memory for subdevice pointers\n"); | |
2140 | err = -ENOMEM; | |
5be452c3 | 2141 | goto vpif_sd_error; |
6ffefff5 MK |
2142 | } |
2143 | ||
873229e4 LP |
2144 | if (!vpif_obj.config->asd_sizes) { |
2145 | i2c_adap = i2c_get_adapter(1); | |
2146 | for (i = 0; i < subdev_count; i++) { | |
2147 | subdevdata = &vpif_obj.config->subdev_info[i]; | |
2148 | vpif_obj.sd[i] = | |
2149 | v4l2_i2c_new_subdev_board(&vpif_obj.v4l2_dev, | |
2150 | i2c_adap, | |
2151 | &subdevdata-> | |
2152 | board_info, | |
2153 | NULL); | |
2154 | ||
2155 | if (!vpif_obj.sd[i]) { | |
2156 | vpif_err("Error registering v4l2 subdevice\n"); | |
2157 | goto probe_subdev_out; | |
2158 | } | |
2159 | v4l2_info(&vpif_obj.v4l2_dev, | |
2160 | "registered sub device %s\n", | |
2161 | subdevdata->name); | |
2162 | } | |
2163 | vpif_probe_complete(); | |
2164 | } else { | |
e8419d08 | 2165 | vpif_obj.notifier.subdevs = vpif_obj.config->asd; |
873229e4 LP |
2166 | vpif_obj.notifier.num_subdevs = vpif_obj.config->asd_sizes[0]; |
2167 | vpif_obj.notifier.bound = vpif_async_bound; | |
2168 | vpif_obj.notifier.complete = vpif_async_complete; | |
2169 | err = v4l2_async_notifier_register(&vpif_obj.v4l2_dev, | |
2170 | &vpif_obj.notifier); | |
2171 | if (err) { | |
2172 | vpif_err("Error registering async notifier\n"); | |
2173 | err = -EINVAL; | |
6ffefff5 MK |
2174 | goto probe_subdev_out; |
2175 | } | |
6ffefff5 | 2176 | } |
6ffefff5 MK |
2177 | |
2178 | return 0; | |
2179 | ||
b65814e5 HV |
2180 | probe_subdev_out: |
2181 | /* free sub devices memory */ | |
2182 | kfree(vpif_obj.sd); | |
6ffefff5 | 2183 | |
5be452c3 HV |
2184 | vpif_sd_error: |
2185 | for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { | |
2186 | ch = vpif_obj.dev[i]; | |
2187 | /* Note: does nothing if ch->video_dev == NULL */ | |
2188 | video_device_release(ch->video_dev); | |
6ffefff5 | 2189 | } |
b2de4f25 | 2190 | vpif_unregister: |
d2f7a1a2 | 2191 | v4l2_device_unregister(&vpif_obj.v4l2_dev); |
b2de4f25 | 2192 | |
6ffefff5 MK |
2193 | return err; |
2194 | } | |
2195 | ||
2196 | /** | |
2197 | * vpif_remove() - driver remove handler | |
2198 | * @device: ptr to platform device structure | |
2199 | * | |
2200 | * The vidoe device is unregistered | |
2201 | */ | |
2202 | static int vpif_remove(struct platform_device *device) | |
2203 | { | |
6ffefff5 | 2204 | struct channel_obj *ch; |
b2de4f25 | 2205 | int i; |
6ffefff5 MK |
2206 | |
2207 | v4l2_device_unregister(&vpif_obj.v4l2_dev); | |
2208 | ||
410ca605 | 2209 | kfree(vpif_obj.sd); |
6ffefff5 MK |
2210 | /* un-register device */ |
2211 | for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { | |
2212 | /* Get the pointer to the channel object */ | |
2213 | ch = vpif_obj.dev[i]; | |
2214 | /* Unregister video device */ | |
2215 | video_unregister_device(ch->video_dev); | |
410ca605 | 2216 | kfree(vpif_obj.dev[i]); |
6ffefff5 MK |
2217 | } |
2218 | return 0; | |
2219 | } | |
2220 | ||
3d5946dc | 2221 | #ifdef CONFIG_PM |
6ffefff5 MK |
2222 | /** |
2223 | * vpif_suspend: vpif device suspend | |
6ffefff5 | 2224 | */ |
3d5946dc | 2225 | static int vpif_suspend(struct device *dev) |
6ffefff5 | 2226 | { |
3d5946dc MH |
2227 | |
2228 | struct common_obj *common; | |
2229 | struct channel_obj *ch; | |
2230 | int i; | |
2231 | ||
2232 | for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { | |
2233 | /* Get the pointer to the channel object */ | |
2234 | ch = vpif_obj.dev[i]; | |
2235 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
2236 | mutex_lock(&common->lock); | |
2237 | if (ch->usrs && common->io_usrs) { | |
2238 | /* Disable channel */ | |
2239 | if (ch->channel_id == VPIF_CHANNEL0_VIDEO) { | |
2240 | enable_channel0(0); | |
2241 | channel0_intr_enable(0); | |
2242 | } | |
2243 | if (ch->channel_id == VPIF_CHANNEL1_VIDEO || | |
2244 | common->started == 2) { | |
2245 | enable_channel1(0); | |
2246 | channel1_intr_enable(0); | |
2247 | } | |
2248 | } | |
2249 | mutex_unlock(&common->lock); | |
2250 | } | |
2251 | ||
2252 | return 0; | |
6ffefff5 MK |
2253 | } |
2254 | ||
3d5946dc | 2255 | /* |
6ffefff5 | 2256 | * vpif_resume: vpif device suspend |
6ffefff5 | 2257 | */ |
3d5946dc | 2258 | static int vpif_resume(struct device *dev) |
6ffefff5 | 2259 | { |
3d5946dc MH |
2260 | struct common_obj *common; |
2261 | struct channel_obj *ch; | |
2262 | int i; | |
2263 | ||
2264 | for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { | |
2265 | /* Get the pointer to the channel object */ | |
2266 | ch = vpif_obj.dev[i]; | |
2267 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
2268 | mutex_lock(&common->lock); | |
2269 | if (ch->usrs && common->io_usrs) { | |
2270 | /* Disable channel */ | |
2271 | if (ch->channel_id == VPIF_CHANNEL0_VIDEO) { | |
2272 | enable_channel0(1); | |
2273 | channel0_intr_enable(1); | |
2274 | } | |
2275 | if (ch->channel_id == VPIF_CHANNEL1_VIDEO || | |
2276 | common->started == 2) { | |
2277 | enable_channel1(1); | |
2278 | channel1_intr_enable(1); | |
2279 | } | |
2280 | } | |
2281 | mutex_unlock(&common->lock); | |
2282 | } | |
2283 | ||
2284 | return 0; | |
6ffefff5 MK |
2285 | } |
2286 | ||
47145210 | 2287 | static const struct dev_pm_ops vpif_dev_pm_ops = { |
6ffefff5 MK |
2288 | .suspend = vpif_suspend, |
2289 | .resume = vpif_resume, | |
2290 | }; | |
2291 | ||
3d5946dc MH |
2292 | #define vpif_pm_ops (&vpif_dev_pm_ops) |
2293 | #else | |
2294 | #define vpif_pm_ops NULL | |
2295 | #endif | |
2296 | ||
ffa1b391 | 2297 | static __refdata struct platform_driver vpif_driver = { |
6ffefff5 MK |
2298 | .driver = { |
2299 | .name = "vpif_capture", | |
2300 | .owner = THIS_MODULE, | |
3d5946dc | 2301 | .pm = vpif_pm_ops, |
6ffefff5 MK |
2302 | }, |
2303 | .probe = vpif_probe, | |
2304 | .remove = vpif_remove, | |
2305 | }; | |
2306 | ||
fe424b2f | 2307 | module_platform_driver(vpif_driver); |