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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 | */ | |
21 | #include <linux/kernel.h> | |
22 | #include <linux/init.h> | |
23 | #include <linux/module.h> | |
24 | #include <linux/errno.h> | |
25 | #include <linux/fs.h> | |
26 | #include <linux/mm.h> | |
27 | #include <linux/interrupt.h> | |
28 | #include <linux/workqueue.h> | |
29 | #include <linux/string.h> | |
30 | #include <linux/videodev2.h> | |
31 | #include <linux/wait.h> | |
32 | #include <linux/time.h> | |
33 | #include <linux/i2c.h> | |
34 | #include <linux/platform_device.h> | |
35 | #include <linux/io.h> | |
5a0e3ad6 | 36 | #include <linux/slab.h> |
6ffefff5 MK |
37 | #include <media/v4l2-device.h> |
38 | #include <media/v4l2-ioctl.h> | |
7036d6a7 | 39 | #include <media/v4l2-chip-ident.h> |
6ffefff5 MK |
40 | |
41 | #include "vpif_capture.h" | |
42 | #include "vpif.h" | |
43 | ||
44 | MODULE_DESCRIPTION("TI DaVinci VPIF Capture driver"); | |
45 | MODULE_LICENSE("GPL"); | |
64dc3c1a | 46 | MODULE_VERSION(VPIF_CAPTURE_VERSION); |
6ffefff5 MK |
47 | |
48 | #define vpif_err(fmt, arg...) v4l2_err(&vpif_obj.v4l2_dev, fmt, ## arg) | |
49 | #define vpif_dbg(level, debug, fmt, arg...) \ | |
50 | v4l2_dbg(level, debug, &vpif_obj.v4l2_dev, fmt, ## arg) | |
51 | ||
52 | static int debug = 1; | |
53 | static u32 ch0_numbuffers = 3; | |
54 | static u32 ch1_numbuffers = 3; | |
55 | static u32 ch0_bufsize = 1920 * 1080 * 2; | |
56 | static u32 ch1_bufsize = 720 * 576 * 2; | |
57 | ||
58 | module_param(debug, int, 0644); | |
59 | module_param(ch0_numbuffers, uint, S_IRUGO); | |
60 | module_param(ch1_numbuffers, uint, S_IRUGO); | |
61 | module_param(ch0_bufsize, uint, S_IRUGO); | |
62 | module_param(ch1_bufsize, uint, S_IRUGO); | |
63 | ||
64 | MODULE_PARM_DESC(debug, "Debug level 0-1"); | |
65 | MODULE_PARM_DESC(ch2_numbuffers, "Channel0 buffer count (default:3)"); | |
66 | MODULE_PARM_DESC(ch3_numbuffers, "Channel1 buffer count (default:3)"); | |
67 | MODULE_PARM_DESC(ch2_bufsize, "Channel0 buffer size (default:1920 x 1080 x 2)"); | |
68 | MODULE_PARM_DESC(ch3_bufsize, "Channel1 buffer size (default:720 x 576 x 2)"); | |
69 | ||
70 | static struct vpif_config_params config_params = { | |
71 | .min_numbuffers = 3, | |
72 | .numbuffers[0] = 3, | |
73 | .numbuffers[1] = 3, | |
74 | .min_bufsize[0] = 720 * 480 * 2, | |
75 | .min_bufsize[1] = 720 * 480 * 2, | |
76 | .channel_bufsize[0] = 1920 * 1080 * 2, | |
77 | .channel_bufsize[1] = 720 * 576 * 2, | |
78 | }; | |
79 | ||
80 | /* global variables */ | |
81 | static struct vpif_device vpif_obj = { {NULL} }; | |
82 | static struct device *vpif_dev; | |
60aa38d8 LP |
83 | static void vpif_calculate_offsets(struct channel_obj *ch); |
84 | static void vpif_config_addr(struct channel_obj *ch, int muxmode); | |
6ffefff5 MK |
85 | |
86 | /** | |
87 | * buffer_prepare : callback function for buffer prepare | |
60aa38d8 | 88 | * @vb: ptr to vb2_buffer |
6ffefff5 | 89 | * |
60aa38d8 | 90 | * This is the callback function for buffer prepare when vb2_qbuf() |
6ffefff5 MK |
91 | * function is called. The buffer is prepared and user space virtual address |
92 | * or user address is converted into physical address | |
93 | */ | |
60aa38d8 | 94 | static int vpif_buffer_prepare(struct vb2_buffer *vb) |
6ffefff5 MK |
95 | { |
96 | /* Get the file handle object and channel object */ | |
60aa38d8 LP |
97 | struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue); |
98 | struct vb2_queue *q = vb->vb2_queue; | |
6ffefff5 MK |
99 | struct channel_obj *ch = fh->channel; |
100 | struct common_obj *common; | |
101 | unsigned long addr; | |
102 | ||
6ffefff5 MK |
103 | vpif_dbg(2, debug, "vpif_buffer_prepare\n"); |
104 | ||
105 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
106 | ||
60aa38d8 LP |
107 | if (vb->state != VB2_BUF_STATE_ACTIVE && |
108 | vb->state != VB2_BUF_STATE_PREPARED) { | |
109 | vb2_set_plane_payload(vb, 0, common->fmt.fmt.pix.sizeimage); | |
110 | if (vb2_plane_vaddr(vb, 0) && | |
111 | vb2_get_plane_payload(vb, 0) > vb2_plane_size(vb, 0)) | |
6ffefff5 | 112 | goto exit; |
60aa38d8 | 113 | addr = vb2_dma_contig_plane_dma_addr(vb, 0); |
6ffefff5 | 114 | |
60aa38d8 LP |
115 | if (q->streaming) { |
116 | if (!IS_ALIGNED((addr + common->ytop_off), 8) || | |
117 | !IS_ALIGNED((addr + common->ybtm_off), 8) || | |
118 | !IS_ALIGNED((addr + common->ctop_off), 8) || | |
119 | !IS_ALIGNED((addr + common->cbtm_off), 8)) | |
120 | goto exit; | |
121 | } | |
6ffefff5 MK |
122 | } |
123 | return 0; | |
124 | exit: | |
125 | vpif_dbg(1, debug, "buffer_prepare:offset is not aligned to 8 bytes\n"); | |
126 | return -EINVAL; | |
127 | } | |
128 | ||
129 | /** | |
60aa38d8 LP |
130 | * vpif_buffer_queue_setup : Callback function for buffer setup. |
131 | * @vq: vb2_queue ptr | |
132 | * @fmt: v4l2 format | |
133 | * @nbuffers: ptr to number of buffers requested by application | |
134 | * @nplanes:: contains number of distinct video planes needed to hold a frame | |
135 | * @sizes[]: contains the size (in bytes) of each plane. | |
136 | * @alloc_ctxs: ptr to allocation context | |
6ffefff5 MK |
137 | * |
138 | * This callback function is called when reqbuf() is called to adjust | |
139 | * the buffer count and buffer size | |
140 | */ | |
60aa38d8 LP |
141 | static int vpif_buffer_queue_setup(struct vb2_queue *vq, |
142 | const struct v4l2_format *fmt, | |
143 | unsigned int *nbuffers, unsigned int *nplanes, | |
144 | unsigned int sizes[], void *alloc_ctxs[]) | |
6ffefff5 MK |
145 | { |
146 | /* Get the file handle object and channel object */ | |
60aa38d8 | 147 | struct vpif_fh *fh = vb2_get_drv_priv(vq); |
6ffefff5 MK |
148 | struct channel_obj *ch = fh->channel; |
149 | struct common_obj *common; | |
60aa38d8 | 150 | unsigned long size; |
6ffefff5 MK |
151 | |
152 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
153 | ||
154 | vpif_dbg(2, debug, "vpif_buffer_setup\n"); | |
155 | ||
156 | /* If memory type is not mmap, return */ | |
60aa38d8 LP |
157 | if (V4L2_MEMORY_MMAP == common->memory) { |
158 | /* Calculate the size of the buffer */ | |
159 | size = config_params.channel_bufsize[ch->channel_id]; | |
160 | /* | |
161 | * Checking if the buffer size exceeds the available buffer | |
162 | * ycmux_mode = 0 means 1 channel mode HD and | |
163 | * ycmux_mode = 1 means 2 channels mode SD | |
164 | */ | |
165 | if (ch->vpifparams.std_info.ycmux_mode == 0) { | |
166 | if (config_params.video_limit[ch->channel_id]) | |
167 | while (size * *nbuffers > | |
168 | (config_params.video_limit[0] | |
764af39a | 169 | + config_params.video_limit[1])) |
60aa38d8 LP |
170 | (*nbuffers)--; |
171 | } else { | |
172 | if (config_params.video_limit[ch->channel_id]) | |
173 | while (size * *nbuffers > | |
764af39a | 174 | config_params.video_limit[ch->channel_id]) |
60aa38d8 LP |
175 | (*nbuffers)--; |
176 | } | |
177 | ||
178 | } else { | |
179 | size = common->fmt.fmt.pix.sizeimage; | |
764af39a MH |
180 | } |
181 | ||
60aa38d8 LP |
182 | if (*nbuffers < config_params.min_numbuffers) |
183 | *nbuffers = config_params.min_numbuffers; | |
184 | ||
185 | *nplanes = 1; | |
186 | sizes[0] = size; | |
187 | alloc_ctxs[0] = common->alloc_ctx; | |
188 | ||
6ffefff5 MK |
189 | return 0; |
190 | } | |
191 | ||
192 | /** | |
193 | * vpif_buffer_queue : Callback function to add buffer to DMA queue | |
60aa38d8 | 194 | * @vb: ptr to vb2_buffer |
6ffefff5 | 195 | */ |
60aa38d8 | 196 | static void vpif_buffer_queue(struct vb2_buffer *vb) |
6ffefff5 MK |
197 | { |
198 | /* Get the file handle object and channel object */ | |
60aa38d8 | 199 | struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue); |
6ffefff5 | 200 | struct channel_obj *ch = fh->channel; |
60aa38d8 LP |
201 | struct vpif_cap_buffer *buf = container_of(vb, |
202 | struct vpif_cap_buffer, vb); | |
6ffefff5 MK |
203 | struct common_obj *common; |
204 | ||
205 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
206 | ||
207 | vpif_dbg(2, debug, "vpif_buffer_queue\n"); | |
208 | ||
209 | /* add the buffer to the DMA queue */ | |
60aa38d8 | 210 | list_add_tail(&buf->list, &common->dma_queue); |
6ffefff5 MK |
211 | } |
212 | ||
213 | /** | |
60aa38d8 LP |
214 | * vpif_buf_cleanup : Callback function to free buffer |
215 | * @vb: ptr to vb2_buffer | |
6ffefff5 | 216 | * |
60aa38d8 | 217 | * This function is called from the videobuf2 layer to free memory |
6ffefff5 MK |
218 | * allocated to the buffers |
219 | */ | |
60aa38d8 | 220 | static void vpif_buf_cleanup(struct vb2_buffer *vb) |
6ffefff5 MK |
221 | { |
222 | /* Get the file handle object and channel object */ | |
60aa38d8 LP |
223 | struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue); |
224 | struct vpif_cap_buffer *buf = container_of(vb, | |
225 | struct vpif_cap_buffer, vb); | |
6ffefff5 MK |
226 | struct channel_obj *ch = fh->channel; |
227 | struct common_obj *common; | |
60aa38d8 | 228 | unsigned long flags; |
6ffefff5 MK |
229 | |
230 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
231 | ||
60aa38d8 LP |
232 | spin_lock_irqsave(&common->irqlock, flags); |
233 | if (vb->state == VB2_BUF_STATE_ACTIVE) | |
234 | list_del_init(&buf->list); | |
235 | spin_unlock_irqrestore(&common->irqlock, flags); | |
236 | ||
6ffefff5 MK |
237 | } |
238 | ||
60aa38d8 LP |
239 | static void vpif_wait_prepare(struct vb2_queue *vq) |
240 | { | |
241 | struct vpif_fh *fh = vb2_get_drv_priv(vq); | |
242 | struct channel_obj *ch = fh->channel; | |
243 | struct common_obj *common; | |
244 | ||
245 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
246 | mutex_unlock(&common->lock); | |
247 | } | |
248 | ||
249 | static void vpif_wait_finish(struct vb2_queue *vq) | |
250 | { | |
251 | struct vpif_fh *fh = vb2_get_drv_priv(vq); | |
252 | struct channel_obj *ch = fh->channel; | |
253 | struct common_obj *common; | |
254 | ||
255 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
256 | mutex_lock(&common->lock); | |
257 | } | |
258 | ||
259 | static int vpif_buffer_init(struct vb2_buffer *vb) | |
260 | { | |
261 | struct vpif_cap_buffer *buf = container_of(vb, | |
262 | struct vpif_cap_buffer, vb); | |
263 | ||
264 | INIT_LIST_HEAD(&buf->list); | |
265 | ||
266 | return 0; | |
267 | } | |
6ffefff5 MK |
268 | |
269 | static u8 channel_first_int[VPIF_NUMBER_OF_OBJECTS][2] = | |
270 | { {1, 1} }; | |
271 | ||
60aa38d8 LP |
272 | static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count) |
273 | { | |
274 | struct vpif_capture_config *vpif_config_data = | |
275 | vpif_dev->platform_data; | |
276 | struct vpif_fh *fh = vb2_get_drv_priv(vq); | |
277 | struct channel_obj *ch = fh->channel; | |
278 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
279 | struct vpif_params *vpif = &ch->vpifparams; | |
280 | unsigned long addr = 0; | |
281 | int ret; | |
282 | ||
283 | /* If buffer queue is empty, return error */ | |
284 | if (list_empty(&common->dma_queue)) { | |
285 | vpif_dbg(1, debug, "buffer queue is empty\n"); | |
286 | return -EIO; | |
287 | } | |
288 | ||
289 | /* Get the next frame from the buffer queue */ | |
290 | common->cur_frm = common->next_frm = list_entry(common->dma_queue.next, | |
291 | struct vpif_cap_buffer, list); | |
292 | /* Remove buffer from the buffer queue */ | |
293 | list_del(&common->cur_frm->list); | |
294 | /* Mark state of the current frame to active */ | |
295 | common->cur_frm->vb.state = VB2_BUF_STATE_ACTIVE; | |
296 | /* Initialize field_id and started member */ | |
297 | ch->field_id = 0; | |
298 | common->started = 1; | |
299 | addr = vb2_dma_contig_plane_dma_addr(&common->cur_frm->vb, 0); | |
300 | ||
301 | /* Calculate the offset for Y and C data in the buffer */ | |
302 | vpif_calculate_offsets(ch); | |
303 | ||
304 | if ((vpif->std_info.frm_fmt && | |
305 | ((common->fmt.fmt.pix.field != V4L2_FIELD_NONE) && | |
306 | (common->fmt.fmt.pix.field != V4L2_FIELD_ANY))) || | |
307 | (!vpif->std_info.frm_fmt && | |
308 | (common->fmt.fmt.pix.field == V4L2_FIELD_NONE))) { | |
309 | vpif_dbg(1, debug, "conflict in field format and std format\n"); | |
310 | return -EINVAL; | |
311 | } | |
312 | ||
313 | /* configure 1 or 2 channel mode */ | |
f4ad8d74 LP |
314 | if (vpif_config_data->setup_input_channel_mode) { |
315 | ret = vpif_config_data-> | |
316 | setup_input_channel_mode(vpif->std_info.ycmux_mode); | |
317 | if (ret < 0) { | |
318 | vpif_dbg(1, debug, "can't set vpif channel mode\n"); | |
319 | return ret; | |
320 | } | |
60aa38d8 LP |
321 | } |
322 | ||
323 | /* Call vpif_set_params function to set the parameters and addresses */ | |
324 | ret = vpif_set_video_params(vpif, ch->channel_id); | |
325 | ||
326 | if (ret < 0) { | |
327 | vpif_dbg(1, debug, "can't set video params\n"); | |
328 | return ret; | |
329 | } | |
330 | ||
331 | common->started = ret; | |
332 | vpif_config_addr(ch, ret); | |
333 | ||
334 | common->set_addr(addr + common->ytop_off, | |
335 | addr + common->ybtm_off, | |
336 | addr + common->ctop_off, | |
337 | addr + common->cbtm_off); | |
338 | ||
339 | /** | |
340 | * Set interrupt for both the fields in VPIF Register enable channel in | |
341 | * VPIF register | |
342 | */ | |
9e18404a | 343 | channel_first_int[VPIF_VIDEO_INDEX][ch->channel_id] = 1; |
60aa38d8 LP |
344 | if ((VPIF_CHANNEL0_VIDEO == ch->channel_id)) { |
345 | channel0_intr_assert(); | |
346 | channel0_intr_enable(1); | |
347 | enable_channel0(1); | |
348 | } | |
349 | if ((VPIF_CHANNEL1_VIDEO == ch->channel_id) || | |
350 | (common->started == 2)) { | |
351 | channel1_intr_assert(); | |
352 | channel1_intr_enable(1); | |
353 | enable_channel1(1); | |
354 | } | |
60aa38d8 LP |
355 | |
356 | return 0; | |
357 | } | |
358 | ||
359 | /* abort streaming and wait for last buffer */ | |
360 | static int vpif_stop_streaming(struct vb2_queue *vq) | |
361 | { | |
362 | struct vpif_fh *fh = vb2_get_drv_priv(vq); | |
363 | struct channel_obj *ch = fh->channel; | |
364 | struct common_obj *common; | |
365 | ||
366 | if (!vb2_is_streaming(vq)) | |
367 | return 0; | |
368 | ||
369 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
370 | ||
371 | /* release all active buffers */ | |
372 | while (!list_empty(&common->dma_queue)) { | |
373 | common->next_frm = list_entry(common->dma_queue.next, | |
374 | struct vpif_cap_buffer, list); | |
375 | list_del(&common->next_frm->list); | |
376 | vb2_buffer_done(&common->next_frm->vb, VB2_BUF_STATE_ERROR); | |
377 | } | |
378 | ||
379 | return 0; | |
380 | } | |
381 | ||
382 | static struct vb2_ops video_qops = { | |
383 | .queue_setup = vpif_buffer_queue_setup, | |
384 | .wait_prepare = vpif_wait_prepare, | |
385 | .wait_finish = vpif_wait_finish, | |
386 | .buf_init = vpif_buffer_init, | |
387 | .buf_prepare = vpif_buffer_prepare, | |
388 | .start_streaming = vpif_start_streaming, | |
389 | .stop_streaming = vpif_stop_streaming, | |
390 | .buf_cleanup = vpif_buf_cleanup, | |
391 | .buf_queue = vpif_buffer_queue, | |
392 | }; | |
393 | ||
6ffefff5 MK |
394 | /** |
395 | * vpif_process_buffer_complete: process a completed buffer | |
396 | * @common: ptr to common channel object | |
397 | * | |
398 | * This function time stamp the buffer and mark it as DONE. It also | |
399 | * wake up any process waiting on the QUEUE and set the next buffer | |
400 | * as current | |
401 | */ | |
402 | static void vpif_process_buffer_complete(struct common_obj *common) | |
403 | { | |
60aa38d8 LP |
404 | do_gettimeofday(&common->cur_frm->vb.v4l2_buf.timestamp); |
405 | vb2_buffer_done(&common->cur_frm->vb, | |
406 | VB2_BUF_STATE_DONE); | |
6ffefff5 MK |
407 | /* Make curFrm pointing to nextFrm */ |
408 | common->cur_frm = common->next_frm; | |
409 | } | |
410 | ||
411 | /** | |
412 | * vpif_schedule_next_buffer: set next buffer address for capture | |
413 | * @common : ptr to common channel object | |
414 | * | |
415 | * This function will get next buffer from the dma queue and | |
416 | * set the buffer address in the vpif register for capture. | |
417 | * the buffer is marked active | |
418 | */ | |
419 | static void vpif_schedule_next_buffer(struct common_obj *common) | |
420 | { | |
421 | unsigned long addr = 0; | |
422 | ||
423 | common->next_frm = list_entry(common->dma_queue.next, | |
60aa38d8 | 424 | struct vpif_cap_buffer, list); |
6ffefff5 | 425 | /* Remove that buffer from the buffer queue */ |
60aa38d8 LP |
426 | list_del(&common->next_frm->list); |
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 */ | |
471 | if (list_empty(&common->dma_queue)) | |
472 | continue; | |
473 | ||
474 | if (!channel_first_int[i][channel_id]) | |
475 | vpif_process_buffer_complete(common); | |
476 | ||
477 | channel_first_int[i][channel_id] = 0; | |
478 | ||
479 | vpif_schedule_next_buffer(common); | |
480 | ||
481 | ||
482 | channel_first_int[i][channel_id] = 0; | |
483 | } else { | |
484 | /** | |
485 | * Interlaced mode. If it is first interrupt, ignore | |
486 | * it | |
487 | */ | |
488 | if (channel_first_int[i][channel_id]) { | |
489 | channel_first_int[i][channel_id] = 0; | |
490 | continue; | |
491 | } | |
492 | if (0 == i) { | |
493 | ch->field_id ^= 1; | |
494 | /* Get field id from VPIF registers */ | |
495 | fid = vpif_channel_getfid(ch->channel_id); | |
496 | if (fid != ch->field_id) { | |
497 | /** | |
498 | * If field id does not match stored | |
499 | * field id, make them in sync | |
500 | */ | |
501 | if (0 == fid) | |
502 | ch->field_id = fid; | |
503 | return IRQ_HANDLED; | |
504 | } | |
505 | } | |
506 | /* device field id and local field id are in sync */ | |
507 | if (0 == fid) { | |
508 | /* this is even field */ | |
509 | if (common->cur_frm == common->next_frm) | |
510 | continue; | |
511 | ||
512 | /* mark the current buffer as done */ | |
513 | vpif_process_buffer_complete(common); | |
514 | } else if (1 == fid) { | |
515 | /* odd field */ | |
516 | if (list_empty(&common->dma_queue) || | |
517 | (common->cur_frm != common->next_frm)) | |
518 | continue; | |
519 | ||
520 | vpif_schedule_next_buffer(common); | |
521 | } | |
522 | } | |
523 | } | |
524 | return IRQ_HANDLED; | |
525 | } | |
526 | ||
527 | /** | |
528 | * vpif_update_std_info() - update standard related info | |
529 | * @ch: ptr to channel object | |
530 | * | |
531 | * For a given standard selected by application, update values | |
532 | * in the device data structures | |
533 | */ | |
534 | static int vpif_update_std_info(struct channel_obj *ch) | |
535 | { | |
536 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
537 | struct vpif_params *vpifparams = &ch->vpifparams; | |
538 | const struct vpif_channel_config_params *config; | |
2c0ddd17 | 539 | struct vpif_channel_config_params *std_info = &vpifparams->std_info; |
6ffefff5 MK |
540 | struct video_obj *vid_ch = &ch->video; |
541 | int index; | |
542 | ||
543 | vpif_dbg(2, debug, "vpif_update_std_info\n"); | |
544 | ||
aa444406 | 545 | for (index = 0; index < vpif_ch_params_count; index++) { |
6ffefff5 | 546 | config = &ch_params[index]; |
40c8bcea MR |
547 | if (config->hd_sd == 0) { |
548 | vpif_dbg(2, debug, "SD format\n"); | |
549 | if (config->stdid & vid_ch->stdid) { | |
550 | memcpy(std_info, config, sizeof(*config)); | |
551 | break; | |
552 | } | |
553 | } else { | |
554 | vpif_dbg(2, debug, "HD format\n"); | |
0598c17b HV |
555 | if (!memcmp(&config->dv_timings, &vid_ch->dv_timings, |
556 | sizeof(vid_ch->dv_timings))) { | |
40c8bcea MR |
557 | memcpy(std_info, config, sizeof(*config)); |
558 | break; | |
559 | } | |
6ffefff5 MK |
560 | } |
561 | } | |
562 | ||
563 | /* standard not found */ | |
aa444406 | 564 | if (index == vpif_ch_params_count) |
6ffefff5 MK |
565 | return -EINVAL; |
566 | ||
567 | common->fmt.fmt.pix.width = std_info->width; | |
568 | common->width = std_info->width; | |
569 | common->fmt.fmt.pix.height = std_info->height; | |
570 | common->height = std_info->height; | |
571 | common->fmt.fmt.pix.bytesperline = std_info->width; | |
572 | vpifparams->video_params.hpitch = std_info->width; | |
573 | vpifparams->video_params.storage_mode = std_info->frm_fmt; | |
2c0ddd17 | 574 | |
6ffefff5 MK |
575 | return 0; |
576 | } | |
577 | ||
578 | /** | |
579 | * vpif_calculate_offsets : This function calculates buffers offsets | |
580 | * @ch : ptr to channel object | |
581 | * | |
582 | * This function calculates buffer offsets for Y and C in the top and | |
583 | * bottom field | |
584 | */ | |
585 | static void vpif_calculate_offsets(struct channel_obj *ch) | |
586 | { | |
587 | unsigned int hpitch, vpitch, sizeimage; | |
588 | struct video_obj *vid_ch = &(ch->video); | |
589 | struct vpif_params *vpifparams = &ch->vpifparams; | |
590 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
591 | enum v4l2_field field = common->fmt.fmt.pix.field; | |
592 | ||
593 | vpif_dbg(2, debug, "vpif_calculate_offsets\n"); | |
594 | ||
595 | if (V4L2_FIELD_ANY == field) { | |
596 | if (vpifparams->std_info.frm_fmt) | |
597 | vid_ch->buf_field = V4L2_FIELD_NONE; | |
598 | else | |
599 | vid_ch->buf_field = V4L2_FIELD_INTERLACED; | |
600 | } else | |
601 | vid_ch->buf_field = common->fmt.fmt.pix.field; | |
602 | ||
60aa38d8 | 603 | sizeimage = common->fmt.fmt.pix.sizeimage; |
6ffefff5 MK |
604 | |
605 | hpitch = common->fmt.fmt.pix.bytesperline; | |
606 | vpitch = sizeimage / (hpitch * 2); | |
607 | ||
608 | if ((V4L2_FIELD_NONE == vid_ch->buf_field) || | |
609 | (V4L2_FIELD_INTERLACED == vid_ch->buf_field)) { | |
610 | /* Calculate offsets for Y top, Y Bottom, C top and C Bottom */ | |
611 | common->ytop_off = 0; | |
612 | common->ybtm_off = hpitch; | |
613 | common->ctop_off = sizeimage / 2; | |
614 | common->cbtm_off = sizeimage / 2 + hpitch; | |
615 | } else if (V4L2_FIELD_SEQ_TB == vid_ch->buf_field) { | |
616 | /* Calculate offsets for Y top, Y Bottom, C top and C Bottom */ | |
617 | common->ytop_off = 0; | |
618 | common->ybtm_off = sizeimage / 4; | |
619 | common->ctop_off = sizeimage / 2; | |
620 | common->cbtm_off = common->ctop_off + sizeimage / 4; | |
621 | } else if (V4L2_FIELD_SEQ_BT == vid_ch->buf_field) { | |
622 | /* Calculate offsets for Y top, Y Bottom, C top and C Bottom */ | |
623 | common->ybtm_off = 0; | |
624 | common->ytop_off = sizeimage / 4; | |
625 | common->cbtm_off = sizeimage / 2; | |
626 | common->ctop_off = common->cbtm_off + sizeimage / 4; | |
627 | } | |
628 | if ((V4L2_FIELD_NONE == vid_ch->buf_field) || | |
629 | (V4L2_FIELD_INTERLACED == vid_ch->buf_field)) | |
630 | vpifparams->video_params.storage_mode = 1; | |
631 | else | |
632 | vpifparams->video_params.storage_mode = 0; | |
633 | ||
634 | if (1 == vpifparams->std_info.frm_fmt) | |
635 | vpifparams->video_params.hpitch = | |
636 | common->fmt.fmt.pix.bytesperline; | |
637 | else { | |
638 | if ((field == V4L2_FIELD_ANY) | |
639 | || (field == V4L2_FIELD_INTERLACED)) | |
640 | vpifparams->video_params.hpitch = | |
641 | common->fmt.fmt.pix.bytesperline * 2; | |
642 | else | |
643 | vpifparams->video_params.hpitch = | |
644 | common->fmt.fmt.pix.bytesperline; | |
645 | } | |
646 | ||
647 | ch->vpifparams.video_params.stdid = vpifparams->std_info.stdid; | |
648 | } | |
649 | ||
650 | /** | |
651 | * vpif_config_format: configure default frame format in the device | |
652 | * ch : ptr to channel object | |
653 | */ | |
654 | static void vpif_config_format(struct channel_obj *ch) | |
655 | { | |
656 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
657 | ||
658 | vpif_dbg(2, debug, "vpif_config_format\n"); | |
659 | ||
660 | common->fmt.fmt.pix.field = V4L2_FIELD_ANY; | |
661 | if (config_params.numbuffers[ch->channel_id] == 0) | |
662 | common->memory = V4L2_MEMORY_USERPTR; | |
663 | else | |
664 | common->memory = V4L2_MEMORY_MMAP; | |
665 | ||
666 | common->fmt.fmt.pix.sizeimage | |
667 | = config_params.channel_bufsize[ch->channel_id]; | |
668 | ||
669 | if (ch->vpifparams.iface.if_type == VPIF_IF_RAW_BAYER) | |
670 | common->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_SBGGR8; | |
671 | else | |
672 | common->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_YUV422P; | |
673 | common->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
674 | } | |
675 | ||
676 | /** | |
677 | * vpif_get_default_field() - Get default field type based on interface | |
678 | * @vpif_params - ptr to vpif params | |
679 | */ | |
680 | static inline enum v4l2_field vpif_get_default_field( | |
681 | struct vpif_interface *iface) | |
682 | { | |
683 | return (iface->if_type == VPIF_IF_RAW_BAYER) ? V4L2_FIELD_NONE : | |
684 | V4L2_FIELD_INTERLACED; | |
685 | } | |
686 | ||
687 | /** | |
688 | * vpif_check_format() - check given pixel format for compatibility | |
689 | * @ch - channel ptr | |
690 | * @pixfmt - Given pixel format | |
691 | * @update - update the values as per hardware requirement | |
692 | * | |
693 | * Check the application pixel format for S_FMT and update the input | |
694 | * values as per hardware limits for TRY_FMT. The default pixel and | |
695 | * field format is selected based on interface type. | |
696 | */ | |
697 | static int vpif_check_format(struct channel_obj *ch, | |
698 | struct v4l2_pix_format *pixfmt, | |
699 | int update) | |
700 | { | |
701 | struct common_obj *common = &(ch->common[VPIF_VIDEO_INDEX]); | |
702 | struct vpif_params *vpif_params = &ch->vpifparams; | |
703 | enum v4l2_field field = pixfmt->field; | |
704 | u32 sizeimage, hpitch, vpitch; | |
705 | int ret = -EINVAL; | |
706 | ||
707 | vpif_dbg(2, debug, "vpif_check_format\n"); | |
708 | /** | |
709 | * first check for the pixel format. If if_type is Raw bayer, | |
710 | * only V4L2_PIX_FMT_SBGGR8 format is supported. Otherwise only | |
711 | * V4L2_PIX_FMT_YUV422P is supported | |
712 | */ | |
713 | if (vpif_params->iface.if_type == VPIF_IF_RAW_BAYER) { | |
714 | if (pixfmt->pixelformat != V4L2_PIX_FMT_SBGGR8) { | |
715 | if (!update) { | |
716 | vpif_dbg(2, debug, "invalid pix format\n"); | |
717 | goto exit; | |
718 | } | |
719 | pixfmt->pixelformat = V4L2_PIX_FMT_SBGGR8; | |
720 | } | |
721 | } else { | |
722 | if (pixfmt->pixelformat != V4L2_PIX_FMT_YUV422P) { | |
723 | if (!update) { | |
724 | vpif_dbg(2, debug, "invalid pixel format\n"); | |
725 | goto exit; | |
726 | } | |
727 | pixfmt->pixelformat = V4L2_PIX_FMT_YUV422P; | |
728 | } | |
729 | } | |
730 | ||
731 | if (!(VPIF_VALID_FIELD(field))) { | |
732 | if (!update) { | |
733 | vpif_dbg(2, debug, "invalid field format\n"); | |
734 | goto exit; | |
735 | } | |
736 | /** | |
737 | * By default use FIELD_NONE for RAW Bayer capture | |
738 | * and FIELD_INTERLACED for other interfaces | |
739 | */ | |
740 | field = vpif_get_default_field(&vpif_params->iface); | |
741 | } else if (field == V4L2_FIELD_ANY) | |
742 | /* unsupported field. Use default */ | |
743 | field = vpif_get_default_field(&vpif_params->iface); | |
744 | ||
745 | /* validate the hpitch */ | |
746 | hpitch = pixfmt->bytesperline; | |
747 | if (hpitch < vpif_params->std_info.width) { | |
748 | if (!update) { | |
749 | vpif_dbg(2, debug, "invalid hpitch\n"); | |
750 | goto exit; | |
751 | } | |
752 | hpitch = vpif_params->std_info.width; | |
753 | } | |
754 | ||
60aa38d8 | 755 | sizeimage = pixfmt->sizeimage; |
6ffefff5 MK |
756 | |
757 | vpitch = sizeimage / (hpitch * 2); | |
758 | ||
759 | /* validate the vpitch */ | |
760 | if (vpitch < vpif_params->std_info.height) { | |
761 | if (!update) { | |
762 | vpif_dbg(2, debug, "Invalid vpitch\n"); | |
763 | goto exit; | |
764 | } | |
765 | vpitch = vpif_params->std_info.height; | |
766 | } | |
767 | ||
768 | /* Check for 8 byte alignment */ | |
769 | if (!ALIGN(hpitch, 8)) { | |
770 | if (!update) { | |
771 | vpif_dbg(2, debug, "invalid pitch alignment\n"); | |
772 | goto exit; | |
773 | } | |
774 | /* adjust to next 8 byte boundary */ | |
775 | hpitch = (((hpitch + 7) / 8) * 8); | |
776 | } | |
777 | /* if update is set, modify the bytesperline and sizeimage */ | |
778 | if (update) { | |
779 | pixfmt->bytesperline = hpitch; | |
780 | pixfmt->sizeimage = hpitch * vpitch * 2; | |
781 | } | |
782 | /** | |
783 | * Image width and height is always based on current standard width and | |
784 | * height | |
785 | */ | |
786 | pixfmt->width = common->fmt.fmt.pix.width; | |
787 | pixfmt->height = common->fmt.fmt.pix.height; | |
788 | return 0; | |
789 | exit: | |
790 | return ret; | |
791 | } | |
792 | ||
793 | /** | |
794 | * vpif_config_addr() - function to configure buffer address in vpif | |
795 | * @ch - channel ptr | |
796 | * @muxmode - channel mux mode | |
797 | */ | |
798 | static void vpif_config_addr(struct channel_obj *ch, int muxmode) | |
799 | { | |
800 | struct common_obj *common; | |
801 | ||
802 | vpif_dbg(2, debug, "vpif_config_addr\n"); | |
803 | ||
804 | common = &(ch->common[VPIF_VIDEO_INDEX]); | |
805 | ||
806 | if (VPIF_CHANNEL1_VIDEO == ch->channel_id) | |
807 | common->set_addr = ch1_set_videobuf_addr; | |
808 | else if (2 == muxmode) | |
809 | common->set_addr = ch0_set_videobuf_addr_yc_nmux; | |
810 | else | |
811 | common->set_addr = ch0_set_videobuf_addr; | |
812 | } | |
813 | ||
814 | /** | |
6f45b1b9 | 815 | * vpif_mmap : It is used to map kernel space buffers into user spaces |
6ffefff5 MK |
816 | * @filep: file pointer |
817 | * @vma: ptr to vm_area_struct | |
818 | */ | |
819 | static int vpif_mmap(struct file *filep, struct vm_area_struct *vma) | |
820 | { | |
821 | /* Get the channel object and file handle object */ | |
822 | struct vpif_fh *fh = filep->private_data; | |
823 | struct channel_obj *ch = fh->channel; | |
824 | struct common_obj *common = &(ch->common[VPIF_VIDEO_INDEX]); | |
7224679a | 825 | int ret; |
6ffefff5 MK |
826 | |
827 | vpif_dbg(2, debug, "vpif_mmap\n"); | |
828 | ||
7224679a HV |
829 | if (mutex_lock_interruptible(&common->lock)) |
830 | return -ERESTARTSYS; | |
831 | ret = vb2_mmap(&common->buffer_queue, vma); | |
832 | mutex_unlock(&common->lock); | |
833 | return ret; | |
6ffefff5 MK |
834 | } |
835 | ||
836 | /** | |
837 | * vpif_poll: It is used for select/poll system call | |
838 | * @filep: file pointer | |
839 | * @wait: poll table to wait | |
840 | */ | |
841 | static unsigned int vpif_poll(struct file *filep, poll_table * wait) | |
842 | { | |
6ffefff5 MK |
843 | struct vpif_fh *fh = filep->private_data; |
844 | struct channel_obj *channel = fh->channel; | |
845 | struct common_obj *common = &(channel->common[VPIF_VIDEO_INDEX]); | |
7224679a | 846 | unsigned int res = 0; |
6ffefff5 MK |
847 | |
848 | vpif_dbg(2, debug, "vpif_poll\n"); | |
849 | ||
7224679a HV |
850 | if (common->started) { |
851 | mutex_lock(&common->lock); | |
852 | res = vb2_poll(&common->buffer_queue, filep, wait); | |
853 | mutex_unlock(&common->lock); | |
854 | } | |
855 | return res; | |
6ffefff5 MK |
856 | } |
857 | ||
858 | /** | |
859 | * vpif_open : vpif open handler | |
860 | * @filep: file ptr | |
861 | * | |
862 | * It creates object of file handle structure and stores it in private_data | |
863 | * member of filepointer | |
864 | */ | |
865 | static int vpif_open(struct file *filep) | |
866 | { | |
6ffefff5 MK |
867 | struct video_device *vdev = video_devdata(filep); |
868 | struct common_obj *common; | |
869 | struct video_obj *vid_ch; | |
870 | struct channel_obj *ch; | |
871 | struct vpif_fh *fh; | |
6ffefff5 MK |
872 | |
873 | vpif_dbg(2, debug, "vpif_open\n"); | |
874 | ||
875 | ch = video_get_drvdata(vdev); | |
876 | ||
877 | vid_ch = &ch->video; | |
878 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
879 | ||
6ffefff5 | 880 | /* Allocate memory for the file handle object */ |
1f8766b4 | 881 | fh = kzalloc(sizeof(struct vpif_fh), GFP_KERNEL); |
6ffefff5 MK |
882 | if (NULL == fh) { |
883 | vpif_err("unable to allocate memory for file handle object\n"); | |
46656afa | 884 | return -ENOMEM; |
6ffefff5 MK |
885 | } |
886 | ||
7224679a HV |
887 | if (mutex_lock_interruptible(&common->lock)) { |
888 | kfree(fh); | |
889 | return -ERESTARTSYS; | |
890 | } | |
6ffefff5 MK |
891 | /* store pointer to fh in private_data member of filep */ |
892 | filep->private_data = fh; | |
893 | fh->channel = ch; | |
894 | fh->initialized = 0; | |
895 | /* If decoder is not initialized. initialize it */ | |
896 | if (!ch->initialized) { | |
897 | fh->initialized = 1; | |
898 | ch->initialized = 1; | |
899 | memset(&(ch->vpifparams), 0, sizeof(struct vpif_params)); | |
900 | } | |
901 | /* Increment channel usrs counter */ | |
902 | ch->usrs++; | |
903 | /* Set io_allowed member to false */ | |
904 | fh->io_allowed[VPIF_VIDEO_INDEX] = 0; | |
905 | /* Initialize priority of this instance to default priority */ | |
906 | fh->prio = V4L2_PRIORITY_UNSET; | |
907 | v4l2_prio_open(&ch->prio, &fh->prio); | |
7224679a | 908 | mutex_unlock(&common->lock); |
46656afa | 909 | return 0; |
6ffefff5 MK |
910 | } |
911 | ||
912 | /** | |
913 | * vpif_release : function to clean up file close | |
914 | * @filep: file pointer | |
915 | * | |
6f45b1b9 | 916 | * This function deletes buffer queue, frees the buffers and the vpif file |
6ffefff5 MK |
917 | * handle |
918 | */ | |
919 | static int vpif_release(struct file *filep) | |
920 | { | |
921 | struct vpif_fh *fh = filep->private_data; | |
922 | struct channel_obj *ch = fh->channel; | |
923 | struct common_obj *common; | |
924 | ||
925 | vpif_dbg(2, debug, "vpif_release\n"); | |
926 | ||
927 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
928 | ||
7224679a | 929 | mutex_lock(&common->lock); |
6ffefff5 MK |
930 | /* if this instance is doing IO */ |
931 | if (fh->io_allowed[VPIF_VIDEO_INDEX]) { | |
932 | /* Reset io_usrs member of channel object */ | |
933 | common->io_usrs = 0; | |
934 | /* Disable channel as per its device type and channel id */ | |
935 | if (VPIF_CHANNEL0_VIDEO == ch->channel_id) { | |
936 | enable_channel0(0); | |
937 | channel0_intr_enable(0); | |
938 | } | |
939 | if ((VPIF_CHANNEL1_VIDEO == ch->channel_id) || | |
940 | (2 == common->started)) { | |
941 | enable_channel1(0); | |
942 | channel1_intr_enable(0); | |
943 | } | |
944 | common->started = 0; | |
945 | /* Free buffers allocated */ | |
60aa38d8 LP |
946 | vb2_queue_release(&common->buffer_queue); |
947 | vb2_dma_contig_cleanup_ctx(common->alloc_ctx); | |
6ffefff5 MK |
948 | } |
949 | ||
950 | /* Decrement channel usrs counter */ | |
951 | ch->usrs--; | |
952 | ||
6ffefff5 | 953 | /* Close the priority */ |
ffb4877b | 954 | v4l2_prio_close(&ch->prio, fh->prio); |
6ffefff5 MK |
955 | |
956 | if (fh->initialized) | |
957 | ch->initialized = 0; | |
958 | ||
7224679a | 959 | mutex_unlock(&common->lock); |
6ffefff5 MK |
960 | filep->private_data = NULL; |
961 | kfree(fh); | |
962 | return 0; | |
963 | } | |
964 | ||
965 | /** | |
966 | * vpif_reqbufs() - request buffer handler | |
967 | * @file: file ptr | |
968 | * @priv: file handle | |
969 | * @reqbuf: request buffer structure ptr | |
970 | */ | |
971 | static int vpif_reqbufs(struct file *file, void *priv, | |
972 | struct v4l2_requestbuffers *reqbuf) | |
973 | { | |
974 | struct vpif_fh *fh = priv; | |
975 | struct channel_obj *ch = fh->channel; | |
976 | struct common_obj *common; | |
977 | u8 index = 0; | |
60aa38d8 | 978 | struct vb2_queue *q; |
b4a711e7 | 979 | int ret; |
6ffefff5 MK |
980 | |
981 | vpif_dbg(2, debug, "vpif_reqbufs\n"); | |
982 | ||
983 | /** | |
984 | * This file handle has not initialized the channel, | |
985 | * It is not allowed to do settings | |
986 | */ | |
987 | if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) | |
988 | || (VPIF_CHANNEL1_VIDEO == ch->channel_id)) { | |
989 | if (!fh->initialized) { | |
990 | vpif_dbg(1, debug, "Channel Busy\n"); | |
991 | return -EBUSY; | |
992 | } | |
993 | } | |
994 | ||
764af39a | 995 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != reqbuf->type || !vpif_dev) |
6ffefff5 MK |
996 | return -EINVAL; |
997 | ||
998 | index = VPIF_VIDEO_INDEX; | |
999 | ||
1000 | common = &ch->common[index]; | |
1001 | ||
46656afa HV |
1002 | if (0 != common->io_usrs) |
1003 | return -EBUSY; | |
6ffefff5 | 1004 | |
60aa38d8 LP |
1005 | /* Initialize videobuf2 queue as per the buffer type */ |
1006 | common->alloc_ctx = vb2_dma_contig_init_ctx(vpif_dev); | |
1007 | if (!common->alloc_ctx) { | |
1008 | vpif_err("Failed to get the context\n"); | |
1009 | return -EINVAL; | |
1010 | } | |
1011 | q = &common->buffer_queue; | |
1012 | q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1013 | q->io_modes = VB2_MMAP | VB2_USERPTR; | |
1014 | q->drv_priv = fh; | |
1015 | q->ops = &video_qops; | |
1016 | q->mem_ops = &vb2_dma_contig_memops; | |
1017 | q->buf_struct_size = sizeof(struct vpif_cap_buffer); | |
1018 | ||
b4a711e7 LP |
1019 | ret = vb2_queue_init(q); |
1020 | if (ret) { | |
1021 | vpif_err("vpif_capture: vb2_queue_init() failed\n"); | |
1022 | vb2_dma_contig_cleanup_ctx(common->alloc_ctx); | |
1023 | return ret; | |
1024 | } | |
6ffefff5 MK |
1025 | /* Set io allowed member of file handle to TRUE */ |
1026 | fh->io_allowed[index] = 1; | |
1027 | /* Increment io usrs member of channel object to 1 */ | |
1028 | common->io_usrs = 1; | |
1029 | /* Store type of memory requested in channel object */ | |
1030 | common->memory = reqbuf->memory; | |
1031 | INIT_LIST_HEAD(&common->dma_queue); | |
1032 | ||
1033 | /* Allocate buffers */ | |
60aa38d8 | 1034 | return vb2_reqbufs(&common->buffer_queue, reqbuf); |
6ffefff5 MK |
1035 | } |
1036 | ||
1037 | /** | |
1038 | * vpif_querybuf() - query buffer handler | |
1039 | * @file: file ptr | |
1040 | * @priv: file handle | |
1041 | * @buf: v4l2 buffer structure ptr | |
1042 | */ | |
1043 | static int vpif_querybuf(struct file *file, void *priv, | |
1044 | struct v4l2_buffer *buf) | |
1045 | { | |
1046 | struct vpif_fh *fh = priv; | |
1047 | struct channel_obj *ch = fh->channel; | |
1048 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1049 | ||
1050 | vpif_dbg(2, debug, "vpif_querybuf\n"); | |
1051 | ||
1052 | if (common->fmt.type != buf->type) | |
1053 | return -EINVAL; | |
1054 | ||
1055 | if (common->memory != V4L2_MEMORY_MMAP) { | |
1056 | vpif_dbg(1, debug, "Invalid memory\n"); | |
1057 | return -EINVAL; | |
1058 | } | |
1059 | ||
60aa38d8 | 1060 | return vb2_querybuf(&common->buffer_queue, buf); |
6ffefff5 MK |
1061 | } |
1062 | ||
1063 | /** | |
1064 | * vpif_qbuf() - query buffer handler | |
1065 | * @file: file ptr | |
1066 | * @priv: file handle | |
1067 | * @buf: v4l2 buffer structure ptr | |
1068 | */ | |
1069 | static int vpif_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf) | |
1070 | { | |
1071 | ||
1072 | struct vpif_fh *fh = priv; | |
1073 | struct channel_obj *ch = fh->channel; | |
1074 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1075 | struct v4l2_buffer tbuf = *buf; | |
6ffefff5 MK |
1076 | |
1077 | vpif_dbg(2, debug, "vpif_qbuf\n"); | |
1078 | ||
1079 | if (common->fmt.type != tbuf.type) { | |
1080 | vpif_err("invalid buffer type\n"); | |
1081 | return -EINVAL; | |
1082 | } | |
1083 | ||
1084 | if (!fh->io_allowed[VPIF_VIDEO_INDEX]) { | |
60aa38d8 | 1085 | vpif_err("fh io not allowed\n"); |
6ffefff5 MK |
1086 | return -EACCES; |
1087 | } | |
1088 | ||
60aa38d8 | 1089 | return vb2_qbuf(&common->buffer_queue, buf); |
6ffefff5 MK |
1090 | } |
1091 | ||
1092 | /** | |
1093 | * vpif_dqbuf() - query buffer handler | |
1094 | * @file: file ptr | |
1095 | * @priv: file handle | |
1096 | * @buf: v4l2 buffer structure ptr | |
1097 | */ | |
1098 | static int vpif_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf) | |
1099 | { | |
1100 | struct vpif_fh *fh = priv; | |
1101 | struct channel_obj *ch = fh->channel; | |
1102 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1103 | ||
1104 | vpif_dbg(2, debug, "vpif_dqbuf\n"); | |
1105 | ||
60aa38d8 LP |
1106 | return vb2_dqbuf(&common->buffer_queue, buf, |
1107 | (file->f_flags & O_NONBLOCK)); | |
6ffefff5 MK |
1108 | } |
1109 | ||
1110 | /** | |
1111 | * vpif_streamon() - streamon handler | |
1112 | * @file: file ptr | |
1113 | * @priv: file handle | |
1114 | * @buftype: v4l2 buffer type | |
1115 | */ | |
1116 | static int vpif_streamon(struct file *file, void *priv, | |
1117 | enum v4l2_buf_type buftype) | |
1118 | { | |
1119 | ||
6ffefff5 MK |
1120 | struct vpif_fh *fh = priv; |
1121 | struct channel_obj *ch = fh->channel; | |
1122 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1123 | struct channel_obj *oth_ch = vpif_obj.dev[!ch->channel_id]; | |
1124 | struct vpif_params *vpif; | |
6ffefff5 MK |
1125 | int ret = 0; |
1126 | ||
1127 | vpif_dbg(2, debug, "vpif_streamon\n"); | |
1128 | ||
1129 | vpif = &ch->vpifparams; | |
1130 | ||
1131 | if (buftype != V4L2_BUF_TYPE_VIDEO_CAPTURE) { | |
1132 | vpif_dbg(1, debug, "buffer type not supported\n"); | |
1133 | return -EINVAL; | |
1134 | } | |
1135 | ||
1136 | /* If file handle is not allowed IO, return error */ | |
1137 | if (!fh->io_allowed[VPIF_VIDEO_INDEX]) { | |
1138 | vpif_dbg(1, debug, "io not allowed\n"); | |
1139 | return -EACCES; | |
1140 | } | |
1141 | ||
1142 | /* If Streaming is already started, return error */ | |
1143 | if (common->started) { | |
1144 | vpif_dbg(1, debug, "channel->started\n"); | |
1145 | return -EBUSY; | |
1146 | } | |
1147 | ||
1148 | if ((ch->channel_id == VPIF_CHANNEL0_VIDEO && | |
1149 | oth_ch->common[VPIF_VIDEO_INDEX].started && | |
1150 | vpif->std_info.ycmux_mode == 0) || | |
1151 | ((ch->channel_id == VPIF_CHANNEL1_VIDEO) && | |
1152 | (2 == oth_ch->common[VPIF_VIDEO_INDEX].started))) { | |
1153 | vpif_dbg(1, debug, "other channel is being used\n"); | |
1154 | return -EBUSY; | |
1155 | } | |
1156 | ||
1157 | ret = vpif_check_format(ch, &common->fmt.fmt.pix, 0); | |
1158 | if (ret) | |
1159 | return ret; | |
1160 | ||
1161 | /* Enable streamon on the sub device */ | |
178cce12 | 1162 | ret = v4l2_subdev_call(ch->sd, video, s_stream, 1); |
6ffefff5 | 1163 | |
178cce12 | 1164 | if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV) { |
6ffefff5 MK |
1165 | vpif_dbg(1, debug, "stream on failed in subdev\n"); |
1166 | return ret; | |
1167 | } | |
1168 | ||
60aa38d8 LP |
1169 | /* Call vb2_streamon to start streaming in videobuf2 */ |
1170 | ret = vb2_streamon(&common->buffer_queue, buftype); | |
6ffefff5 | 1171 | if (ret) { |
60aa38d8 | 1172 | vpif_dbg(1, debug, "vb2_streamon\n"); |
6ffefff5 MK |
1173 | return ret; |
1174 | } | |
1175 | ||
6ffefff5 MK |
1176 | return ret; |
1177 | } | |
1178 | ||
1179 | /** | |
1180 | * vpif_streamoff() - streamoff handler | |
1181 | * @file: file ptr | |
1182 | * @priv: file handle | |
1183 | * @buftype: v4l2 buffer type | |
1184 | */ | |
1185 | static int vpif_streamoff(struct file *file, void *priv, | |
1186 | enum v4l2_buf_type buftype) | |
1187 | { | |
1188 | ||
1189 | struct vpif_fh *fh = priv; | |
1190 | struct channel_obj *ch = fh->channel; | |
1191 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1192 | int ret; | |
1193 | ||
1194 | vpif_dbg(2, debug, "vpif_streamoff\n"); | |
1195 | ||
1196 | if (buftype != V4L2_BUF_TYPE_VIDEO_CAPTURE) { | |
1197 | vpif_dbg(1, debug, "buffer type not supported\n"); | |
1198 | return -EINVAL; | |
1199 | } | |
1200 | ||
1201 | /* If io is allowed for this file handle, return error */ | |
1202 | if (!fh->io_allowed[VPIF_VIDEO_INDEX]) { | |
1203 | vpif_dbg(1, debug, "io not allowed\n"); | |
1204 | return -EACCES; | |
1205 | } | |
1206 | ||
1207 | /* If streaming is not started, return error */ | |
1208 | if (!common->started) { | |
1209 | vpif_dbg(1, debug, "channel->started\n"); | |
1210 | return -EINVAL; | |
1211 | } | |
1212 | ||
6ffefff5 MK |
1213 | /* disable channel */ |
1214 | if (VPIF_CHANNEL0_VIDEO == ch->channel_id) { | |
1215 | enable_channel0(0); | |
1216 | channel0_intr_enable(0); | |
1217 | } else { | |
1218 | enable_channel1(0); | |
1219 | channel1_intr_enable(0); | |
1220 | } | |
1221 | ||
1222 | common->started = 0; | |
1223 | ||
178cce12 | 1224 | ret = v4l2_subdev_call(ch->sd, video, s_stream, 0); |
6ffefff5 | 1225 | |
178cce12 | 1226 | if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV) |
6ffefff5 MK |
1227 | vpif_dbg(1, debug, "stream off failed in subdev\n"); |
1228 | ||
60aa38d8 | 1229 | return vb2_streamoff(&common->buffer_queue, buftype); |
6ffefff5 MK |
1230 | } |
1231 | ||
1232 | /** | |
178cce12 HV |
1233 | * vpif_input_to_subdev() - Maps input to sub device |
1234 | * @vpif_cfg - global config ptr | |
1235 | * @chan_cfg - channel config ptr | |
6ffefff5 | 1236 | * @input_index - Given input index from application |
6ffefff5 MK |
1237 | * |
1238 | * lookup the sub device information for a given input index. | |
1239 | * we report all the inputs to application. inputs table also | |
1240 | * has sub device name for the each input | |
1241 | */ | |
178cce12 HV |
1242 | static int vpif_input_to_subdev( |
1243 | struct vpif_capture_config *vpif_cfg, | |
1244 | struct vpif_capture_chan_config *chan_cfg, | |
1245 | int input_index) | |
6ffefff5 | 1246 | { |
178cce12 HV |
1247 | struct vpif_subdev_info *subdev_info; |
1248 | const char *subdev_name; | |
6ffefff5 MK |
1249 | int i; |
1250 | ||
178cce12 | 1251 | vpif_dbg(2, debug, "vpif_input_to_subdev\n"); |
6ffefff5 | 1252 | |
178cce12 HV |
1253 | subdev_name = chan_cfg->inputs[input_index].subdev_name; |
1254 | if (subdev_name == NULL) | |
1255 | return -1; | |
6ffefff5 MK |
1256 | |
1257 | /* loop through the sub device list to get the sub device info */ | |
1258 | for (i = 0; i < vpif_cfg->subdev_count; i++) { | |
1259 | subdev_info = &vpif_cfg->subdev_info[i]; | |
1260 | if (!strcmp(subdev_info->name, subdev_name)) | |
178cce12 | 1261 | return i; |
6ffefff5 | 1262 | } |
178cce12 HV |
1263 | return -1; |
1264 | } | |
6ffefff5 | 1265 | |
178cce12 HV |
1266 | /** |
1267 | * vpif_set_input() - Select an input | |
1268 | * @vpif_cfg - global config ptr | |
1269 | * @ch - channel | |
1270 | * @_index - Given input index from application | |
1271 | * | |
1272 | * Select the given input. | |
1273 | */ | |
1274 | static int vpif_set_input( | |
1275 | struct vpif_capture_config *vpif_cfg, | |
1276 | struct channel_obj *ch, | |
1277 | int index) | |
1278 | { | |
1279 | struct vpif_capture_chan_config *chan_cfg = | |
1280 | &vpif_cfg->chan_config[ch->channel_id]; | |
1281 | struct vpif_subdev_info *subdev_info = NULL; | |
1282 | struct v4l2_subdev *sd = NULL; | |
1283 | u32 input = 0, output = 0; | |
1284 | int sd_index; | |
1285 | int ret; | |
6ffefff5 | 1286 | |
178cce12 HV |
1287 | sd_index = vpif_input_to_subdev(vpif_cfg, chan_cfg, index); |
1288 | if (sd_index >= 0) { | |
1289 | sd = vpif_obj.sd[sd_index]; | |
1290 | subdev_info = &vpif_cfg->subdev_info[sd_index]; | |
1291 | } | |
6ffefff5 | 1292 | |
178cce12 HV |
1293 | /* first setup input path from sub device to vpif */ |
1294 | if (sd && vpif_cfg->setup_input_path) { | |
1295 | ret = vpif_cfg->setup_input_path(ch->channel_id, | |
1296 | subdev_info->name); | |
1297 | if (ret < 0) { | |
1298 | vpif_dbg(1, debug, "couldn't setup input path for the" \ | |
1299 | " sub device %s, for input index %d\n", | |
1300 | subdev_info->name, index); | |
1301 | return ret; | |
1302 | } | |
1303 | } | |
1304 | ||
1305 | if (sd) { | |
1306 | input = chan_cfg->inputs[index].input_route; | |
1307 | output = chan_cfg->inputs[index].output_route; | |
1308 | ret = v4l2_subdev_call(sd, video, s_routing, | |
1309 | input, output, 0); | |
1310 | if (ret < 0 && ret != -ENOIOCTLCMD) { | |
1311 | vpif_dbg(1, debug, "Failed to set input\n"); | |
1312 | return ret; | |
1313 | } | |
1314 | } | |
1315 | ch->input_idx = index; | |
1316 | ch->sd = sd; | |
1317 | /* copy interface parameters to vpif */ | |
0d4f35f3 | 1318 | ch->vpifparams.iface = chan_cfg->vpif_if; |
178cce12 HV |
1319 | |
1320 | /* update tvnorms from the sub device input info */ | |
1321 | ch->video_dev->tvnorms = chan_cfg->inputs[index].input.std; | |
1322 | return 0; | |
6ffefff5 MK |
1323 | } |
1324 | ||
1325 | /** | |
1326 | * vpif_querystd() - querystd handler | |
1327 | * @file: file ptr | |
1328 | * @priv: file handle | |
1329 | * @std_id: ptr to std id | |
1330 | * | |
1331 | * This function is called to detect standard at the selected input | |
1332 | */ | |
1333 | static int vpif_querystd(struct file *file, void *priv, v4l2_std_id *std_id) | |
1334 | { | |
1335 | struct vpif_fh *fh = priv; | |
1336 | struct channel_obj *ch = fh->channel; | |
6ffefff5 MK |
1337 | int ret = 0; |
1338 | ||
1339 | vpif_dbg(2, debug, "vpif_querystd\n"); | |
1340 | ||
6ffefff5 | 1341 | /* Call querystd function of decoder device */ |
178cce12 | 1342 | ret = v4l2_subdev_call(ch->sd, video, querystd, std_id); |
6ffefff5 | 1343 | |
178cce12 HV |
1344 | if (ret == -ENOIOCTLCMD || ret == -ENODEV) |
1345 | return -ENODATA; | |
1346 | if (ret) { | |
1347 | vpif_dbg(1, debug, "Failed to query standard for sub devices\n"); | |
1348 | return ret; | |
1349 | } | |
1350 | ||
1351 | return 0; | |
6ffefff5 MK |
1352 | } |
1353 | ||
1354 | /** | |
1355 | * vpif_g_std() - get STD handler | |
1356 | * @file: file ptr | |
1357 | * @priv: file handle | |
1358 | * @std_id: ptr to std id | |
1359 | */ | |
1360 | static int vpif_g_std(struct file *file, void *priv, v4l2_std_id *std) | |
1361 | { | |
1362 | struct vpif_fh *fh = priv; | |
1363 | struct channel_obj *ch = fh->channel; | |
1364 | ||
1365 | vpif_dbg(2, debug, "vpif_g_std\n"); | |
1366 | ||
1367 | *std = ch->video.stdid; | |
1368 | return 0; | |
1369 | } | |
1370 | ||
1371 | /** | |
1372 | * vpif_s_std() - set STD handler | |
1373 | * @file: file ptr | |
1374 | * @priv: file handle | |
1375 | * @std_id: ptr to std id | |
1376 | */ | |
1377 | static int vpif_s_std(struct file *file, void *priv, v4l2_std_id *std_id) | |
1378 | { | |
1379 | struct vpif_fh *fh = priv; | |
1380 | struct channel_obj *ch = fh->channel; | |
1381 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1382 | int ret = 0; | |
1383 | ||
1384 | vpif_dbg(2, debug, "vpif_s_std\n"); | |
1385 | ||
1386 | if (common->started) { | |
1387 | vpif_err("streaming in progress\n"); | |
1388 | return -EBUSY; | |
1389 | } | |
1390 | ||
1391 | if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) || | |
1392 | (VPIF_CHANNEL1_VIDEO == ch->channel_id)) { | |
1393 | if (!fh->initialized) { | |
1394 | vpif_dbg(1, debug, "Channel Busy\n"); | |
1395 | return -EBUSY; | |
1396 | } | |
1397 | } | |
1398 | ||
ffb4877b | 1399 | ret = v4l2_prio_check(&ch->prio, fh->prio); |
6ffefff5 MK |
1400 | if (0 != ret) |
1401 | return ret; | |
1402 | ||
1403 | fh->initialized = 1; | |
1404 | ||
1405 | /* Call encoder subdevice function to set the standard */ | |
6ffefff5 | 1406 | ch->video.stdid = *std_id; |
0598c17b | 1407 | memset(&ch->video.dv_timings, 0, sizeof(ch->video.dv_timings)); |
6ffefff5 MK |
1408 | |
1409 | /* Get the information about the standard */ | |
1410 | if (vpif_update_std_info(ch)) { | |
6ffefff5 | 1411 | vpif_err("Error getting the standard info\n"); |
46656afa | 1412 | return -EINVAL; |
6ffefff5 MK |
1413 | } |
1414 | ||
1415 | /* Configure the default format information */ | |
1416 | vpif_config_format(ch); | |
1417 | ||
1418 | /* set standard in the sub device */ | |
178cce12 HV |
1419 | ret = v4l2_subdev_call(ch->sd, core, s_std, *std_id); |
1420 | if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV) { | |
6ffefff5 | 1421 | vpif_dbg(1, debug, "Failed to set standard for sub devices\n"); |
178cce12 HV |
1422 | return ret; |
1423 | } | |
1424 | return 0; | |
6ffefff5 MK |
1425 | } |
1426 | ||
1427 | /** | |
1428 | * vpif_enum_input() - ENUMINPUT handler | |
1429 | * @file: file ptr | |
1430 | * @priv: file handle | |
1431 | * @input: ptr to input structure | |
1432 | */ | |
1433 | static int vpif_enum_input(struct file *file, void *priv, | |
1434 | struct v4l2_input *input) | |
1435 | { | |
1436 | ||
1437 | struct vpif_capture_config *config = vpif_dev->platform_data; | |
1438 | struct vpif_capture_chan_config *chan_cfg; | |
1439 | struct vpif_fh *fh = priv; | |
1440 | struct channel_obj *ch = fh->channel; | |
1441 | ||
1442 | chan_cfg = &config->chan_config[ch->channel_id]; | |
1443 | ||
1444 | if (input->index >= chan_cfg->input_count) { | |
1445 | vpif_dbg(1, debug, "Invalid input index\n"); | |
1446 | return -EINVAL; | |
1447 | } | |
1448 | ||
1449 | memcpy(input, &chan_cfg->inputs[input->index].input, | |
1450 | sizeof(*input)); | |
1451 | return 0; | |
1452 | } | |
1453 | ||
1454 | /** | |
1455 | * vpif_g_input() - Get INPUT handler | |
1456 | * @file: file ptr | |
1457 | * @priv: file handle | |
1458 | * @index: ptr to input index | |
1459 | */ | |
1460 | static int vpif_g_input(struct file *file, void *priv, unsigned int *index) | |
1461 | { | |
1462 | struct vpif_fh *fh = priv; | |
1463 | struct channel_obj *ch = fh->channel; | |
6ffefff5 | 1464 | |
6f47c6c6 | 1465 | *index = ch->input_idx; |
6ffefff5 MK |
1466 | return 0; |
1467 | } | |
1468 | ||
1469 | /** | |
1470 | * vpif_s_input() - Set INPUT handler | |
1471 | * @file: file ptr | |
1472 | * @priv: file handle | |
1473 | * @index: input index | |
1474 | */ | |
1475 | static int vpif_s_input(struct file *file, void *priv, unsigned int index) | |
1476 | { | |
1477 | struct vpif_capture_config *config = vpif_dev->platform_data; | |
1478 | struct vpif_capture_chan_config *chan_cfg; | |
1479 | struct vpif_fh *fh = priv; | |
1480 | struct channel_obj *ch = fh->channel; | |
1481 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
178cce12 | 1482 | int ret; |
6ffefff5 MK |
1483 | |
1484 | chan_cfg = &config->chan_config[ch->channel_id]; | |
1485 | ||
7aaad131 HV |
1486 | if (index >= chan_cfg->input_count) |
1487 | return -EINVAL; | |
1488 | ||
6ffefff5 MK |
1489 | if (common->started) { |
1490 | vpif_err("Streaming in progress\n"); | |
1491 | return -EBUSY; | |
1492 | } | |
1493 | ||
1494 | if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) || | |
1495 | (VPIF_CHANNEL1_VIDEO == ch->channel_id)) { | |
1496 | if (!fh->initialized) { | |
1497 | vpif_dbg(1, debug, "Channel Busy\n"); | |
1498 | return -EBUSY; | |
1499 | } | |
1500 | } | |
1501 | ||
ffb4877b | 1502 | ret = v4l2_prio_check(&ch->prio, fh->prio); |
6ffefff5 MK |
1503 | if (0 != ret) |
1504 | return ret; | |
1505 | ||
1506 | fh->initialized = 1; | |
178cce12 | 1507 | return vpif_set_input(config, ch, index); |
6ffefff5 MK |
1508 | } |
1509 | ||
1510 | /** | |
1511 | * vpif_enum_fmt_vid_cap() - ENUM_FMT handler | |
1512 | * @file: file ptr | |
1513 | * @priv: file handle | |
1514 | * @index: input index | |
1515 | */ | |
1516 | static int vpif_enum_fmt_vid_cap(struct file *file, void *priv, | |
1517 | struct v4l2_fmtdesc *fmt) | |
1518 | { | |
1519 | struct vpif_fh *fh = priv; | |
1520 | struct channel_obj *ch = fh->channel; | |
1521 | ||
1522 | if (fmt->index != 0) { | |
1523 | vpif_dbg(1, debug, "Invalid format index\n"); | |
1524 | return -EINVAL; | |
1525 | } | |
1526 | ||
1527 | /* Fill in the information about format */ | |
1528 | if (ch->vpifparams.iface.if_type == VPIF_IF_RAW_BAYER) { | |
1529 | fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1530 | strcpy(fmt->description, "Raw Mode -Bayer Pattern GrRBGb"); | |
1531 | fmt->pixelformat = V4L2_PIX_FMT_SBGGR8; | |
1532 | } else { | |
1533 | fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1534 | strcpy(fmt->description, "YCbCr4:2:2 YC Planar"); | |
1535 | fmt->pixelformat = V4L2_PIX_FMT_YUV422P; | |
1536 | } | |
1537 | return 0; | |
1538 | } | |
1539 | ||
1540 | /** | |
1541 | * vpif_try_fmt_vid_cap() - TRY_FMT handler | |
1542 | * @file: file ptr | |
1543 | * @priv: file handle | |
1544 | * @fmt: ptr to v4l2 format structure | |
1545 | */ | |
1546 | static int vpif_try_fmt_vid_cap(struct file *file, void *priv, | |
1547 | struct v4l2_format *fmt) | |
1548 | { | |
1549 | struct vpif_fh *fh = priv; | |
1550 | struct channel_obj *ch = fh->channel; | |
1551 | struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; | |
1552 | ||
1553 | return vpif_check_format(ch, pixfmt, 1); | |
1554 | } | |
1555 | ||
1556 | ||
1557 | /** | |
1558 | * vpif_g_fmt_vid_cap() - Set INPUT handler | |
1559 | * @file: file ptr | |
1560 | * @priv: file handle | |
1561 | * @fmt: ptr to v4l2 format structure | |
1562 | */ | |
1563 | static int vpif_g_fmt_vid_cap(struct file *file, void *priv, | |
1564 | struct v4l2_format *fmt) | |
1565 | { | |
1566 | struct vpif_fh *fh = priv; | |
1567 | struct channel_obj *ch = fh->channel; | |
1568 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1569 | ||
1570 | /* Check the validity of the buffer type */ | |
1571 | if (common->fmt.type != fmt->type) | |
1572 | return -EINVAL; | |
1573 | ||
1574 | /* Fill in the information about format */ | |
6ffefff5 | 1575 | *fmt = common->fmt; |
6ffefff5 MK |
1576 | return 0; |
1577 | } | |
1578 | ||
1579 | /** | |
1580 | * vpif_s_fmt_vid_cap() - Set FMT handler | |
1581 | * @file: file ptr | |
1582 | * @priv: file handle | |
1583 | * @fmt: ptr to v4l2 format structure | |
1584 | */ | |
1585 | static int vpif_s_fmt_vid_cap(struct file *file, void *priv, | |
1586 | struct v4l2_format *fmt) | |
1587 | { | |
1588 | struct vpif_fh *fh = priv; | |
1589 | struct channel_obj *ch = fh->channel; | |
1590 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1591 | struct v4l2_pix_format *pixfmt; | |
1592 | int ret = 0; | |
1593 | ||
2c0ddd17 | 1594 | vpif_dbg(2, debug, "%s\n", __func__); |
6ffefff5 MK |
1595 | |
1596 | /* If streaming is started, return error */ | |
1597 | if (common->started) { | |
1598 | vpif_dbg(1, debug, "Streaming is started\n"); | |
1599 | return -EBUSY; | |
1600 | } | |
1601 | ||
1602 | if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) || | |
1603 | (VPIF_CHANNEL1_VIDEO == ch->channel_id)) { | |
1604 | if (!fh->initialized) { | |
1605 | vpif_dbg(1, debug, "Channel Busy\n"); | |
1606 | return -EBUSY; | |
1607 | } | |
1608 | } | |
1609 | ||
ffb4877b | 1610 | ret = v4l2_prio_check(&ch->prio, fh->prio); |
6ffefff5 MK |
1611 | if (0 != ret) |
1612 | return ret; | |
1613 | ||
1614 | fh->initialized = 1; | |
1615 | ||
1616 | pixfmt = &fmt->fmt.pix; | |
1617 | /* Check for valid field format */ | |
1618 | ret = vpif_check_format(ch, pixfmt, 0); | |
1619 | ||
1620 | if (ret) | |
1621 | return ret; | |
1622 | /* store the format in the channel object */ | |
6ffefff5 | 1623 | common->fmt = *fmt; |
6ffefff5 MK |
1624 | return 0; |
1625 | } | |
1626 | ||
1627 | /** | |
1628 | * vpif_querycap() - QUERYCAP handler | |
1629 | * @file: file ptr | |
1630 | * @priv: file handle | |
1631 | * @cap: ptr to v4l2_capability structure | |
1632 | */ | |
1633 | static int vpif_querycap(struct file *file, void *priv, | |
1634 | struct v4l2_capability *cap) | |
1635 | { | |
1636 | struct vpif_capture_config *config = vpif_dev->platform_data; | |
1637 | ||
626d533f LP |
1638 | cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; |
1639 | cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; | |
1640 | snprintf(cap->driver, sizeof(cap->driver), "%s", dev_name(vpif_dev)); | |
1641 | snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s", | |
1642 | dev_name(vpif_dev)); | |
6ffefff5 MK |
1643 | strlcpy(cap->card, config->card_name, sizeof(cap->card)); |
1644 | ||
1645 | return 0; | |
1646 | } | |
1647 | ||
1648 | /** | |
1649 | * vpif_g_priority() - get priority handler | |
1650 | * @file: file ptr | |
1651 | * @priv: file handle | |
1652 | * @prio: ptr to v4l2_priority structure | |
1653 | */ | |
1654 | static int vpif_g_priority(struct file *file, void *priv, | |
1655 | enum v4l2_priority *prio) | |
1656 | { | |
1657 | struct vpif_fh *fh = priv; | |
1658 | struct channel_obj *ch = fh->channel; | |
1659 | ||
1660 | *prio = v4l2_prio_max(&ch->prio); | |
1661 | ||
1662 | return 0; | |
1663 | } | |
1664 | ||
1665 | /** | |
1666 | * vpif_s_priority() - set priority handler | |
1667 | * @file: file ptr | |
1668 | * @priv: file handle | |
1669 | * @prio: ptr to v4l2_priority structure | |
1670 | */ | |
1671 | static int vpif_s_priority(struct file *file, void *priv, enum v4l2_priority p) | |
1672 | { | |
1673 | struct vpif_fh *fh = priv; | |
1674 | struct channel_obj *ch = fh->channel; | |
1675 | ||
1676 | return v4l2_prio_change(&ch->prio, &fh->prio, p); | |
1677 | } | |
1678 | ||
1679 | /** | |
1680 | * vpif_cropcap() - cropcap handler | |
1681 | * @file: file ptr | |
1682 | * @priv: file handle | |
1683 | * @crop: ptr to v4l2_cropcap structure | |
1684 | */ | |
1685 | static int vpif_cropcap(struct file *file, void *priv, | |
1686 | struct v4l2_cropcap *crop) | |
1687 | { | |
1688 | struct vpif_fh *fh = priv; | |
1689 | struct channel_obj *ch = fh->channel; | |
1690 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1691 | ||
1692 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != crop->type) | |
1693 | return -EINVAL; | |
1694 | ||
1695 | crop->bounds.left = 0; | |
1696 | crop->bounds.top = 0; | |
1697 | crop->bounds.height = common->height; | |
1698 | crop->bounds.width = common->width; | |
1699 | crop->defrect = crop->bounds; | |
1700 | return 0; | |
1701 | } | |
1702 | ||
40c8bcea | 1703 | /** |
0598c17b | 1704 | * vpif_enum_dv_timings() - ENUM_DV_TIMINGS handler |
40c8bcea MR |
1705 | * @file: file ptr |
1706 | * @priv: file handle | |
0598c17b | 1707 | * @timings: input timings |
40c8bcea | 1708 | */ |
0598c17b HV |
1709 | static int |
1710 | vpif_enum_dv_timings(struct file *file, void *priv, | |
1711 | struct v4l2_enum_dv_timings *timings) | |
40c8bcea MR |
1712 | { |
1713 | struct vpif_fh *fh = priv; | |
1714 | struct channel_obj *ch = fh->channel; | |
178cce12 | 1715 | int ret; |
40c8bcea | 1716 | |
178cce12 | 1717 | ret = v4l2_subdev_call(ch->sd, video, enum_dv_timings, timings); |
e070f1b4 | 1718 | if (ret == -ENOIOCTLCMD || ret == -ENODEV) |
178cce12 HV |
1719 | return -EINVAL; |
1720 | return ret; | |
40c8bcea MR |
1721 | } |
1722 | ||
1723 | /** | |
0598c17b | 1724 | * vpif_query_dv_timings() - QUERY_DV_TIMINGS handler |
40c8bcea MR |
1725 | * @file: file ptr |
1726 | * @priv: file handle | |
0598c17b | 1727 | * @timings: input timings |
40c8bcea | 1728 | */ |
0598c17b HV |
1729 | static int |
1730 | vpif_query_dv_timings(struct file *file, void *priv, | |
1731 | struct v4l2_dv_timings *timings) | |
40c8bcea MR |
1732 | { |
1733 | struct vpif_fh *fh = priv; | |
1734 | struct channel_obj *ch = fh->channel; | |
178cce12 | 1735 | int ret; |
40c8bcea | 1736 | |
178cce12 | 1737 | ret = v4l2_subdev_call(ch->sd, video, query_dv_timings, timings); |
e070f1b4 | 1738 | if (ret == -ENOIOCTLCMD || ret == -ENODEV) |
178cce12 HV |
1739 | return -ENODATA; |
1740 | return ret; | |
40c8bcea MR |
1741 | } |
1742 | ||
c027e165 MR |
1743 | /** |
1744 | * vpif_s_dv_timings() - S_DV_TIMINGS handler | |
1745 | * @file: file ptr | |
1746 | * @priv: file handle | |
1747 | * @timings: digital video timings | |
1748 | */ | |
1749 | static int vpif_s_dv_timings(struct file *file, void *priv, | |
1750 | struct v4l2_dv_timings *timings) | |
1751 | { | |
1752 | struct vpif_fh *fh = priv; | |
1753 | struct channel_obj *ch = fh->channel; | |
1754 | struct vpif_params *vpifparams = &ch->vpifparams; | |
1755 | struct vpif_channel_config_params *std_info = &vpifparams->std_info; | |
1756 | struct video_obj *vid_ch = &ch->video; | |
0598c17b | 1757 | struct v4l2_bt_timings *bt = &vid_ch->dv_timings.bt; |
c027e165 MR |
1758 | int ret; |
1759 | ||
1760 | if (timings->type != V4L2_DV_BT_656_1120) { | |
1761 | vpif_dbg(2, debug, "Timing type not defined\n"); | |
1762 | return -EINVAL; | |
1763 | } | |
1764 | ||
1765 | /* Configure subdevice timings, if any */ | |
178cce12 HV |
1766 | ret = v4l2_subdev_call(ch->sd, video, s_dv_timings, timings); |
1767 | if (ret == -ENOIOCTLCMD || ret == -ENODEV) | |
1768 | ret = 0; | |
c027e165 MR |
1769 | if (ret < 0) { |
1770 | vpif_dbg(2, debug, "Error setting custom DV timings\n"); | |
1771 | return ret; | |
1772 | } | |
1773 | ||
1774 | if (!(timings->bt.width && timings->bt.height && | |
1775 | (timings->bt.hbackporch || | |
1776 | timings->bt.hfrontporch || | |
1777 | timings->bt.hsync) && | |
1778 | timings->bt.vfrontporch && | |
1779 | (timings->bt.vbackporch || | |
1780 | timings->bt.vsync))) { | |
1781 | vpif_dbg(2, debug, "Timings for width, height, " | |
1782 | "horizontal back porch, horizontal sync, " | |
1783 | "horizontal front porch, vertical back porch, " | |
1784 | "vertical sync and vertical back porch " | |
1785 | "must be defined\n"); | |
1786 | return -EINVAL; | |
1787 | } | |
1788 | ||
0598c17b | 1789 | vid_ch->dv_timings = *timings; |
c027e165 MR |
1790 | |
1791 | /* Configure video port timings */ | |
1792 | ||
1793 | std_info->eav2sav = bt->hbackporch + bt->hfrontporch + | |
1794 | bt->hsync - 8; | |
1795 | std_info->sav2eav = bt->width; | |
1796 | ||
1797 | std_info->l1 = 1; | |
1798 | std_info->l3 = bt->vsync + bt->vbackporch + 1; | |
1799 | ||
1800 | if (bt->interlaced) { | |
1801 | if (bt->il_vbackporch || bt->il_vfrontporch || bt->il_vsync) { | |
1802 | std_info->vsize = bt->height * 2 + | |
1803 | bt->vfrontporch + bt->vsync + bt->vbackporch + | |
1804 | bt->il_vfrontporch + bt->il_vsync + | |
1805 | bt->il_vbackporch; | |
1806 | std_info->l5 = std_info->vsize/2 - | |
1807 | (bt->vfrontporch - 1); | |
1808 | std_info->l7 = std_info->vsize/2 + 1; | |
1809 | std_info->l9 = std_info->l7 + bt->il_vsync + | |
1810 | bt->il_vbackporch + 1; | |
1811 | std_info->l11 = std_info->vsize - | |
1812 | (bt->il_vfrontporch - 1); | |
1813 | } else { | |
1814 | vpif_dbg(2, debug, "Required timing values for " | |
1815 | "interlaced BT format missing\n"); | |
1816 | return -EINVAL; | |
1817 | } | |
1818 | } else { | |
1819 | std_info->vsize = bt->height + bt->vfrontporch + | |
1820 | bt->vsync + bt->vbackporch; | |
1821 | std_info->l5 = std_info->vsize - (bt->vfrontporch - 1); | |
1822 | } | |
1823 | strncpy(std_info->name, "Custom timings BT656/1120", VPIF_MAX_NAME); | |
1824 | std_info->width = bt->width; | |
1825 | std_info->height = bt->height; | |
1826 | std_info->frm_fmt = bt->interlaced ? 0 : 1; | |
1827 | std_info->ycmux_mode = 0; | |
1828 | std_info->capture_format = 0; | |
1829 | std_info->vbi_supported = 0; | |
1830 | std_info->hd_sd = 1; | |
1831 | std_info->stdid = 0; | |
c027e165 MR |
1832 | |
1833 | vid_ch->stdid = 0; | |
c027e165 MR |
1834 | return 0; |
1835 | } | |
1836 | ||
1837 | /** | |
1838 | * vpif_g_dv_timings() - G_DV_TIMINGS handler | |
1839 | * @file: file ptr | |
1840 | * @priv: file handle | |
1841 | * @timings: digital video timings | |
1842 | */ | |
1843 | static int vpif_g_dv_timings(struct file *file, void *priv, | |
1844 | struct v4l2_dv_timings *timings) | |
1845 | { | |
1846 | struct vpif_fh *fh = priv; | |
1847 | struct channel_obj *ch = fh->channel; | |
1848 | struct video_obj *vid_ch = &ch->video; | |
c027e165 | 1849 | |
0598c17b | 1850 | *timings = vid_ch->dv_timings; |
c027e165 MR |
1851 | |
1852 | return 0; | |
1853 | } | |
1854 | ||
7036d6a7 MR |
1855 | /* |
1856 | * vpif_g_chip_ident() - Identify the chip | |
1857 | * @file: file ptr | |
1858 | * @priv: file handle | |
1859 | * @chip: chip identity | |
1860 | * | |
1861 | * Returns zero or -EINVAL if read operations fails. | |
1862 | */ | |
1863 | static int vpif_g_chip_ident(struct file *file, void *priv, | |
1864 | struct v4l2_dbg_chip_ident *chip) | |
1865 | { | |
1866 | chip->ident = V4L2_IDENT_NONE; | |
1867 | chip->revision = 0; | |
1868 | if (chip->match.type != V4L2_CHIP_MATCH_I2C_DRIVER && | |
1869 | chip->match.type != V4L2_CHIP_MATCH_I2C_ADDR) { | |
1870 | vpif_dbg(2, debug, "match_type is invalid.\n"); | |
1871 | return -EINVAL; | |
1872 | } | |
1873 | ||
1874 | return v4l2_device_call_until_err(&vpif_obj.v4l2_dev, 0, core, | |
1875 | g_chip_ident, chip); | |
1876 | } | |
1877 | ||
1878 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
1879 | /* | |
1880 | * vpif_dbg_g_register() - Read register | |
1881 | * @file: file ptr | |
1882 | * @priv: file handle | |
1883 | * @reg: register to be read | |
1884 | * | |
1885 | * Debugging only | |
1886 | * Returns zero or -EINVAL if read operations fails. | |
1887 | */ | |
1888 | static int vpif_dbg_g_register(struct file *file, void *priv, | |
1889 | struct v4l2_dbg_register *reg){ | |
1890 | struct vpif_fh *fh = priv; | |
1891 | struct channel_obj *ch = fh->channel; | |
1892 | ||
178cce12 | 1893 | return v4l2_subdev_call(ch->sd, core, g_register, reg); |
7036d6a7 MR |
1894 | } |
1895 | ||
1896 | /* | |
1897 | * vpif_dbg_s_register() - Write to register | |
1898 | * @file: file ptr | |
1899 | * @priv: file handle | |
1900 | * @reg: register to be modified | |
1901 | * | |
1902 | * Debugging only | |
1903 | * Returns zero or -EINVAL if write operations fails. | |
1904 | */ | |
1905 | static int vpif_dbg_s_register(struct file *file, void *priv, | |
1906 | struct v4l2_dbg_register *reg){ | |
1907 | struct vpif_fh *fh = priv; | |
1908 | struct channel_obj *ch = fh->channel; | |
1909 | ||
178cce12 | 1910 | return v4l2_subdev_call(ch->sd, core, s_register, reg); |
7036d6a7 MR |
1911 | } |
1912 | #endif | |
1913 | ||
1914 | /* | |
1915 | * vpif_log_status() - Status information | |
1916 | * @file: file ptr | |
1917 | * @priv: file handle | |
1918 | * | |
1919 | * Returns zero. | |
1920 | */ | |
1921 | static int vpif_log_status(struct file *filep, void *priv) | |
1922 | { | |
1923 | /* status for sub devices */ | |
1924 | v4l2_device_call_all(&vpif_obj.v4l2_dev, 0, core, log_status); | |
1925 | ||
1926 | return 0; | |
1927 | } | |
1928 | ||
6ffefff5 MK |
1929 | /* vpif capture ioctl operations */ |
1930 | static const struct v4l2_ioctl_ops vpif_ioctl_ops = { | |
1931 | .vidioc_querycap = vpif_querycap, | |
1932 | .vidioc_g_priority = vpif_g_priority, | |
1933 | .vidioc_s_priority = vpif_s_priority, | |
1934 | .vidioc_enum_fmt_vid_cap = vpif_enum_fmt_vid_cap, | |
1935 | .vidioc_g_fmt_vid_cap = vpif_g_fmt_vid_cap, | |
1936 | .vidioc_s_fmt_vid_cap = vpif_s_fmt_vid_cap, | |
1937 | .vidioc_try_fmt_vid_cap = vpif_try_fmt_vid_cap, | |
1938 | .vidioc_enum_input = vpif_enum_input, | |
1939 | .vidioc_s_input = vpif_s_input, | |
1940 | .vidioc_g_input = vpif_g_input, | |
1941 | .vidioc_reqbufs = vpif_reqbufs, | |
1942 | .vidioc_querybuf = vpif_querybuf, | |
1943 | .vidioc_querystd = vpif_querystd, | |
1944 | .vidioc_s_std = vpif_s_std, | |
1945 | .vidioc_g_std = vpif_g_std, | |
1946 | .vidioc_qbuf = vpif_qbuf, | |
1947 | .vidioc_dqbuf = vpif_dqbuf, | |
1948 | .vidioc_streamon = vpif_streamon, | |
1949 | .vidioc_streamoff = vpif_streamoff, | |
1950 | .vidioc_cropcap = vpif_cropcap, | |
0598c17b HV |
1951 | .vidioc_enum_dv_timings = vpif_enum_dv_timings, |
1952 | .vidioc_query_dv_timings = vpif_query_dv_timings, | |
c027e165 MR |
1953 | .vidioc_s_dv_timings = vpif_s_dv_timings, |
1954 | .vidioc_g_dv_timings = vpif_g_dv_timings, | |
7036d6a7 MR |
1955 | .vidioc_g_chip_ident = vpif_g_chip_ident, |
1956 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
1957 | .vidioc_g_register = vpif_dbg_g_register, | |
1958 | .vidioc_s_register = vpif_dbg_s_register, | |
1959 | #endif | |
1960 | .vidioc_log_status = vpif_log_status, | |
6ffefff5 MK |
1961 | }; |
1962 | ||
1963 | /* vpif file operations */ | |
1964 | static struct v4l2_file_operations vpif_fops = { | |
1965 | .owner = THIS_MODULE, | |
1966 | .open = vpif_open, | |
1967 | .release = vpif_release, | |
46656afa | 1968 | .unlocked_ioctl = video_ioctl2, |
6ffefff5 MK |
1969 | .mmap = vpif_mmap, |
1970 | .poll = vpif_poll | |
1971 | }; | |
1972 | ||
1973 | /* vpif video template */ | |
1974 | static struct video_device vpif_video_template = { | |
1975 | .name = "vpif", | |
1976 | .fops = &vpif_fops, | |
1977 | .minor = -1, | |
1978 | .ioctl_ops = &vpif_ioctl_ops, | |
1979 | }; | |
1980 | ||
1981 | /** | |
1982 | * initialize_vpif() - Initialize vpif data structures | |
1983 | * | |
1984 | * Allocate memory for data structures and initialize them | |
1985 | */ | |
1986 | static int initialize_vpif(void) | |
1987 | { | |
1988 | int err = 0, i, j; | |
1989 | int free_channel_objects_index; | |
1990 | ||
1991 | /* Default number of buffers should be 3 */ | |
1992 | if ((ch0_numbuffers > 0) && | |
1993 | (ch0_numbuffers < config_params.min_numbuffers)) | |
1994 | ch0_numbuffers = config_params.min_numbuffers; | |
1995 | if ((ch1_numbuffers > 0) && | |
1996 | (ch1_numbuffers < config_params.min_numbuffers)) | |
1997 | ch1_numbuffers = config_params.min_numbuffers; | |
1998 | ||
1999 | /* Set buffer size to min buffers size if it is invalid */ | |
2000 | if (ch0_bufsize < config_params.min_bufsize[VPIF_CHANNEL0_VIDEO]) | |
2001 | ch0_bufsize = | |
2002 | config_params.min_bufsize[VPIF_CHANNEL0_VIDEO]; | |
2003 | if (ch1_bufsize < config_params.min_bufsize[VPIF_CHANNEL1_VIDEO]) | |
2004 | ch1_bufsize = | |
2005 | config_params.min_bufsize[VPIF_CHANNEL1_VIDEO]; | |
2006 | ||
2007 | config_params.numbuffers[VPIF_CHANNEL0_VIDEO] = ch0_numbuffers; | |
2008 | config_params.numbuffers[VPIF_CHANNEL1_VIDEO] = ch1_numbuffers; | |
2009 | if (ch0_numbuffers) { | |
2010 | config_params.channel_bufsize[VPIF_CHANNEL0_VIDEO] | |
2011 | = ch0_bufsize; | |
2012 | } | |
2013 | if (ch1_numbuffers) { | |
2014 | config_params.channel_bufsize[VPIF_CHANNEL1_VIDEO] | |
2015 | = ch1_bufsize; | |
2016 | } | |
2017 | ||
2018 | /* Allocate memory for six channel objects */ | |
2019 | for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { | |
2020 | vpif_obj.dev[i] = | |
2021 | kzalloc(sizeof(*vpif_obj.dev[i]), GFP_KERNEL); | |
2022 | /* If memory allocation fails, return error */ | |
2023 | if (!vpif_obj.dev[i]) { | |
2024 | free_channel_objects_index = i; | |
2025 | err = -ENOMEM; | |
2026 | goto vpif_init_free_channel_objects; | |
2027 | } | |
2028 | } | |
2029 | return 0; | |
2030 | ||
2031 | vpif_init_free_channel_objects: | |
2032 | for (j = 0; j < free_channel_objects_index; j++) | |
2033 | kfree(vpif_obj.dev[j]); | |
2034 | return err; | |
2035 | } | |
2036 | ||
2037 | /** | |
2038 | * vpif_probe : This function probes the vpif capture driver | |
2039 | * @pdev: platform device pointer | |
2040 | * | |
2041 | * This creates device entries by register itself to the V4L2 driver and | |
2042 | * initializes fields of each channel objects | |
2043 | */ | |
2044 | static __init int vpif_probe(struct platform_device *pdev) | |
2045 | { | |
2046 | struct vpif_subdev_info *subdevdata; | |
2047 | struct vpif_capture_config *config; | |
5be452c3 HV |
2048 | int i, j, k, err; |
2049 | int res_idx = 0; | |
6ffefff5 MK |
2050 | struct i2c_adapter *i2c_adap; |
2051 | struct channel_obj *ch; | |
2052 | struct common_obj *common; | |
2053 | struct video_device *vfd; | |
2054 | struct resource *res; | |
2055 | int subdev_count; | |
764af39a | 2056 | size_t size; |
6ffefff5 MK |
2057 | |
2058 | vpif_dev = &pdev->dev; | |
2059 | ||
2060 | err = initialize_vpif(); | |
2061 | if (err) { | |
2062 | v4l2_err(vpif_dev->driver, "Error initializing vpif\n"); | |
2063 | return err; | |
2064 | } | |
2065 | ||
d2f7a1a2 HV |
2066 | err = v4l2_device_register(vpif_dev, &vpif_obj.v4l2_dev); |
2067 | if (err) { | |
2068 | v4l2_err(vpif_dev->driver, "Error registering v4l2 device\n"); | |
2069 | return err; | |
2070 | } | |
2071 | ||
5be452c3 | 2072 | while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, res_idx))) { |
6ffefff5 | 2073 | for (i = res->start; i <= res->end; i++) { |
0316b89a | 2074 | if (request_irq(i, vpif_channel_isr, IRQF_SHARED, |
5be452c3 HV |
2075 | "VPIF_Capture", (void *) |
2076 | (&vpif_obj.dev[res_idx]->channel_id))) { | |
6ffefff5 | 2077 | err = -EBUSY; |
5be452c3 HV |
2078 | for (j = 0; j < i; j++) |
2079 | free_irq(j, (void *) | |
2080 | (&vpif_obj.dev[res_idx]->channel_id)); | |
6ffefff5 MK |
2081 | goto vpif_int_err; |
2082 | } | |
2083 | } | |
5be452c3 | 2084 | res_idx++; |
6ffefff5 MK |
2085 | } |
2086 | ||
2087 | for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { | |
2088 | /* Get the pointer to the channel object */ | |
2089 | ch = vpif_obj.dev[i]; | |
2090 | /* Allocate memory for video device */ | |
2091 | vfd = video_device_alloc(); | |
2092 | if (NULL == vfd) { | |
2093 | for (j = 0; j < i; j++) { | |
2094 | ch = vpif_obj.dev[j]; | |
2095 | video_device_release(ch->video_dev); | |
2096 | } | |
2097 | err = -ENOMEM; | |
5be452c3 | 2098 | goto vpif_int_err; |
6ffefff5 MK |
2099 | } |
2100 | ||
2101 | /* Initialize field of video device */ | |
2102 | *vfd = vpif_video_template; | |
2103 | vfd->v4l2_dev = &vpif_obj.v4l2_dev; | |
2104 | vfd->release = video_device_release; | |
2105 | snprintf(vfd->name, sizeof(vfd->name), | |
0a63172a | 2106 | "VPIF_Capture_DRIVER_V%s", |
64dc3c1a | 2107 | VPIF_CAPTURE_VERSION); |
6ffefff5 MK |
2108 | /* Set video_dev to the video device */ |
2109 | ch->video_dev = vfd; | |
2110 | } | |
2111 | ||
764af39a MH |
2112 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
2113 | if (res) { | |
2114 | size = resource_size(res); | |
2115 | /* The resources are divided into two equal memory and when we | |
2116 | * have HD output we can add them together | |
2117 | */ | |
2118 | for (j = 0; j < VPIF_CAPTURE_MAX_DEVICES; j++) { | |
2119 | ch = vpif_obj.dev[j]; | |
2120 | ch->channel_id = j; | |
2121 | /* only enabled if second resource exists */ | |
2122 | config_params.video_limit[ch->channel_id] = 0; | |
2123 | if (size) | |
2124 | config_params.video_limit[ch->channel_id] = | |
2125 | size/2; | |
2126 | } | |
2127 | } | |
2128 | ||
6ffefff5 MK |
2129 | i2c_adap = i2c_get_adapter(1); |
2130 | config = pdev->dev.platform_data; | |
2131 | ||
2132 | subdev_count = config->subdev_count; | |
1f8766b4 | 2133 | vpif_obj.sd = kzalloc(sizeof(struct v4l2_subdev *) * subdev_count, |
6ffefff5 MK |
2134 | GFP_KERNEL); |
2135 | if (vpif_obj.sd == NULL) { | |
2136 | vpif_err("unable to allocate memory for subdevice pointers\n"); | |
2137 | err = -ENOMEM; | |
5be452c3 | 2138 | goto vpif_sd_error; |
6ffefff5 MK |
2139 | } |
2140 | ||
6ffefff5 MK |
2141 | for (i = 0; i < subdev_count; i++) { |
2142 | subdevdata = &config->subdev_info[i]; | |
2143 | vpif_obj.sd[i] = | |
2144 | v4l2_i2c_new_subdev_board(&vpif_obj.v4l2_dev, | |
2145 | i2c_adap, | |
6ffefff5 MK |
2146 | &subdevdata->board_info, |
2147 | NULL); | |
2148 | ||
2149 | if (!vpif_obj.sd[i]) { | |
2150 | vpif_err("Error registering v4l2 subdevice\n"); | |
2151 | goto probe_subdev_out; | |
2152 | } | |
2153 | v4l2_info(&vpif_obj.v4l2_dev, "registered sub device %s\n", | |
2154 | subdevdata->name); | |
6ffefff5 | 2155 | } |
6ffefff5 | 2156 | |
b65814e5 HV |
2157 | for (j = 0; j < VPIF_CAPTURE_MAX_DEVICES; j++) { |
2158 | ch = vpif_obj.dev[j]; | |
2159 | ch->channel_id = j; | |
2160 | common = &(ch->common[VPIF_VIDEO_INDEX]); | |
2161 | spin_lock_init(&common->irqlock); | |
2162 | mutex_init(&common->lock); | |
2163 | ch->video_dev->lock = &common->lock; | |
2164 | /* Initialize prio member of channel object */ | |
2165 | v4l2_prio_init(&ch->prio); | |
2166 | video_set_drvdata(ch->video_dev, ch); | |
2167 | ||
178cce12 HV |
2168 | /* select input 0 */ |
2169 | err = vpif_set_input(config, ch, 0); | |
2170 | if (err) | |
2171 | goto probe_out; | |
2172 | ||
b65814e5 HV |
2173 | err = video_register_device(ch->video_dev, |
2174 | VFL_TYPE_GRABBER, (j ? 1 : 0)); | |
2175 | if (err) | |
2176 | goto probe_out; | |
2177 | } | |
0a63172a | 2178 | v4l2_info(&vpif_obj.v4l2_dev, "VPIF capture driver initialized\n"); |
6ffefff5 MK |
2179 | return 0; |
2180 | ||
6ffefff5 | 2181 | probe_out: |
6ffefff5 MK |
2182 | for (k = 0; k < j; k++) { |
2183 | /* Get the pointer to the channel object */ | |
2184 | ch = vpif_obj.dev[k]; | |
2185 | /* Unregister video device */ | |
2186 | video_unregister_device(ch->video_dev); | |
2187 | } | |
b65814e5 HV |
2188 | probe_subdev_out: |
2189 | /* free sub devices memory */ | |
2190 | kfree(vpif_obj.sd); | |
6ffefff5 | 2191 | |
5be452c3 HV |
2192 | vpif_sd_error: |
2193 | for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { | |
2194 | ch = vpif_obj.dev[i]; | |
2195 | /* Note: does nothing if ch->video_dev == NULL */ | |
2196 | video_device_release(ch->video_dev); | |
6ffefff5 | 2197 | } |
5be452c3 | 2198 | vpif_int_err: |
d2f7a1a2 | 2199 | v4l2_device_unregister(&vpif_obj.v4l2_dev); |
5be452c3 HV |
2200 | for (i = 0; i < res_idx; i++) { |
2201 | res = platform_get_resource(pdev, IORESOURCE_IRQ, i); | |
2202 | for (j = res->start; j <= res->end; j++) | |
2203 | free_irq(j, (void *)(&vpif_obj.dev[i]->channel_id)); | |
2204 | } | |
6ffefff5 MK |
2205 | return err; |
2206 | } | |
2207 | ||
2208 | /** | |
2209 | * vpif_remove() - driver remove handler | |
2210 | * @device: ptr to platform device structure | |
2211 | * | |
2212 | * The vidoe device is unregistered | |
2213 | */ | |
2214 | static int vpif_remove(struct platform_device *device) | |
2215 | { | |
2216 | int i; | |
2217 | struct channel_obj *ch; | |
2218 | ||
2219 | v4l2_device_unregister(&vpif_obj.v4l2_dev); | |
2220 | ||
2221 | /* un-register device */ | |
2222 | for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { | |
2223 | /* Get the pointer to the channel object */ | |
2224 | ch = vpif_obj.dev[i]; | |
2225 | /* Unregister video device */ | |
2226 | video_unregister_device(ch->video_dev); | |
2227 | } | |
2228 | return 0; | |
2229 | } | |
2230 | ||
3d5946dc | 2231 | #ifdef CONFIG_PM |
6ffefff5 MK |
2232 | /** |
2233 | * vpif_suspend: vpif device suspend | |
6ffefff5 | 2234 | */ |
3d5946dc | 2235 | static int vpif_suspend(struct device *dev) |
6ffefff5 | 2236 | { |
3d5946dc MH |
2237 | |
2238 | struct common_obj *common; | |
2239 | struct channel_obj *ch; | |
2240 | int i; | |
2241 | ||
2242 | for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { | |
2243 | /* Get the pointer to the channel object */ | |
2244 | ch = vpif_obj.dev[i]; | |
2245 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
2246 | mutex_lock(&common->lock); | |
2247 | if (ch->usrs && common->io_usrs) { | |
2248 | /* Disable channel */ | |
2249 | if (ch->channel_id == VPIF_CHANNEL0_VIDEO) { | |
2250 | enable_channel0(0); | |
2251 | channel0_intr_enable(0); | |
2252 | } | |
2253 | if (ch->channel_id == VPIF_CHANNEL1_VIDEO || | |
2254 | common->started == 2) { | |
2255 | enable_channel1(0); | |
2256 | channel1_intr_enable(0); | |
2257 | } | |
2258 | } | |
2259 | mutex_unlock(&common->lock); | |
2260 | } | |
2261 | ||
2262 | return 0; | |
6ffefff5 MK |
2263 | } |
2264 | ||
3d5946dc | 2265 | /* |
6ffefff5 | 2266 | * vpif_resume: vpif device suspend |
6ffefff5 | 2267 | */ |
3d5946dc | 2268 | static int vpif_resume(struct device *dev) |
6ffefff5 | 2269 | { |
3d5946dc MH |
2270 | struct common_obj *common; |
2271 | struct channel_obj *ch; | |
2272 | int i; | |
2273 | ||
2274 | for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { | |
2275 | /* Get the pointer to the channel object */ | |
2276 | ch = vpif_obj.dev[i]; | |
2277 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
2278 | mutex_lock(&common->lock); | |
2279 | if (ch->usrs && common->io_usrs) { | |
2280 | /* Disable channel */ | |
2281 | if (ch->channel_id == VPIF_CHANNEL0_VIDEO) { | |
2282 | enable_channel0(1); | |
2283 | channel0_intr_enable(1); | |
2284 | } | |
2285 | if (ch->channel_id == VPIF_CHANNEL1_VIDEO || | |
2286 | common->started == 2) { | |
2287 | enable_channel1(1); | |
2288 | channel1_intr_enable(1); | |
2289 | } | |
2290 | } | |
2291 | mutex_unlock(&common->lock); | |
2292 | } | |
2293 | ||
2294 | return 0; | |
6ffefff5 MK |
2295 | } |
2296 | ||
47145210 | 2297 | static const struct dev_pm_ops vpif_dev_pm_ops = { |
6ffefff5 MK |
2298 | .suspend = vpif_suspend, |
2299 | .resume = vpif_resume, | |
2300 | }; | |
2301 | ||
3d5946dc MH |
2302 | #define vpif_pm_ops (&vpif_dev_pm_ops) |
2303 | #else | |
2304 | #define vpif_pm_ops NULL | |
2305 | #endif | |
2306 | ||
ffa1b391 | 2307 | static __refdata struct platform_driver vpif_driver = { |
6ffefff5 MK |
2308 | .driver = { |
2309 | .name = "vpif_capture", | |
2310 | .owner = THIS_MODULE, | |
3d5946dc | 2311 | .pm = vpif_pm_ops, |
6ffefff5 MK |
2312 | }, |
2313 | .probe = vpif_probe, | |
2314 | .remove = vpif_remove, | |
2315 | }; | |
2316 | ||
2317 | /** | |
2318 | * vpif_init: initialize the vpif driver | |
2319 | * | |
2320 | * This function registers device and driver to the kernel, requests irq | |
2321 | * handler and allocates memory | |
2322 | * for channel objects | |
2323 | */ | |
2324 | static __init int vpif_init(void) | |
2325 | { | |
2326 | return platform_driver_register(&vpif_driver); | |
2327 | } | |
2328 | ||
2329 | /** | |
2330 | * vpif_cleanup : This function clean up the vpif capture resources | |
2331 | * | |
2332 | * This will un-registers device and driver to the kernel, frees | |
2333 | * requested irq handler and de-allocates memory allocated for channel | |
2334 | * objects. | |
2335 | */ | |
2336 | static void vpif_cleanup(void) | |
2337 | { | |
2338 | struct platform_device *pdev; | |
2339 | struct resource *res; | |
2340 | int irq_num; | |
2341 | int i = 0; | |
2342 | ||
2343 | pdev = container_of(vpif_dev, struct platform_device, dev); | |
2344 | while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, i))) { | |
2345 | for (irq_num = res->start; irq_num <= res->end; irq_num++) | |
2346 | free_irq(irq_num, | |
2347 | (void *)(&vpif_obj.dev[i]->channel_id)); | |
2348 | i++; | |
2349 | } | |
2350 | ||
2351 | platform_driver_unregister(&vpif_driver); | |
2352 | ||
2353 | kfree(vpif_obj.sd); | |
2354 | for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) | |
2355 | kfree(vpif_obj.dev[i]); | |
2356 | } | |
2357 | ||
2358 | /* Function for module initialization and cleanup */ | |
2359 | module_init(vpif_init); | |
2360 | module_exit(vpif_cleanup); |