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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 | 203 | struct common_obj *common; |
aec96832 | 204 | unsigned long flags; |
6ffefff5 MK |
205 | |
206 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
207 | ||
208 | vpif_dbg(2, debug, "vpif_buffer_queue\n"); | |
209 | ||
aec96832 | 210 | spin_lock_irqsave(&common->irqlock, flags); |
6ffefff5 | 211 | /* add the buffer to the DMA queue */ |
60aa38d8 | 212 | list_add_tail(&buf->list, &common->dma_queue); |
aec96832 | 213 | spin_unlock_irqrestore(&common->irqlock, flags); |
6ffefff5 MK |
214 | } |
215 | ||
216 | /** | |
60aa38d8 LP |
217 | * vpif_buf_cleanup : Callback function to free buffer |
218 | * @vb: ptr to vb2_buffer | |
6ffefff5 | 219 | * |
60aa38d8 | 220 | * This function is called from the videobuf2 layer to free memory |
6ffefff5 MK |
221 | * allocated to the buffers |
222 | */ | |
60aa38d8 | 223 | static void vpif_buf_cleanup(struct vb2_buffer *vb) |
6ffefff5 MK |
224 | { |
225 | /* Get the file handle object and channel object */ | |
60aa38d8 LP |
226 | struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue); |
227 | struct vpif_cap_buffer *buf = container_of(vb, | |
228 | struct vpif_cap_buffer, vb); | |
6ffefff5 MK |
229 | struct channel_obj *ch = fh->channel; |
230 | struct common_obj *common; | |
60aa38d8 | 231 | unsigned long flags; |
6ffefff5 MK |
232 | |
233 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
234 | ||
60aa38d8 LP |
235 | spin_lock_irqsave(&common->irqlock, flags); |
236 | if (vb->state == VB2_BUF_STATE_ACTIVE) | |
237 | list_del_init(&buf->list); | |
238 | spin_unlock_irqrestore(&common->irqlock, flags); | |
239 | ||
6ffefff5 MK |
240 | } |
241 | ||
60aa38d8 LP |
242 | static void vpif_wait_prepare(struct vb2_queue *vq) |
243 | { | |
244 | struct vpif_fh *fh = vb2_get_drv_priv(vq); | |
245 | struct channel_obj *ch = fh->channel; | |
246 | struct common_obj *common; | |
247 | ||
248 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
249 | mutex_unlock(&common->lock); | |
250 | } | |
251 | ||
252 | static void vpif_wait_finish(struct vb2_queue *vq) | |
253 | { | |
254 | struct vpif_fh *fh = vb2_get_drv_priv(vq); | |
255 | struct channel_obj *ch = fh->channel; | |
256 | struct common_obj *common; | |
257 | ||
258 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
259 | mutex_lock(&common->lock); | |
260 | } | |
261 | ||
262 | static int vpif_buffer_init(struct vb2_buffer *vb) | |
263 | { | |
264 | struct vpif_cap_buffer *buf = container_of(vb, | |
265 | struct vpif_cap_buffer, vb); | |
266 | ||
267 | INIT_LIST_HEAD(&buf->list); | |
268 | ||
269 | return 0; | |
270 | } | |
6ffefff5 MK |
271 | |
272 | static u8 channel_first_int[VPIF_NUMBER_OF_OBJECTS][2] = | |
273 | { {1, 1} }; | |
274 | ||
60aa38d8 LP |
275 | static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count) |
276 | { | |
277 | struct vpif_capture_config *vpif_config_data = | |
278 | vpif_dev->platform_data; | |
279 | struct vpif_fh *fh = vb2_get_drv_priv(vq); | |
280 | struct channel_obj *ch = fh->channel; | |
281 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
282 | struct vpif_params *vpif = &ch->vpifparams; | |
283 | unsigned long addr = 0; | |
aec96832 | 284 | unsigned long flags; |
60aa38d8 LP |
285 | int ret; |
286 | ||
aec96832 HV |
287 | /* If buffer queue is empty, return error */ |
288 | spin_lock_irqsave(&common->irqlock, flags); | |
60aa38d8 | 289 | if (list_empty(&common->dma_queue)) { |
aec96832 | 290 | spin_unlock_irqrestore(&common->irqlock, flags); |
60aa38d8 LP |
291 | vpif_dbg(1, debug, "buffer queue is empty\n"); |
292 | return -EIO; | |
293 | } | |
294 | ||
295 | /* Get the next frame from the buffer queue */ | |
296 | common->cur_frm = common->next_frm = list_entry(common->dma_queue.next, | |
297 | struct vpif_cap_buffer, list); | |
298 | /* Remove buffer from the buffer queue */ | |
299 | list_del(&common->cur_frm->list); | |
aec96832 | 300 | spin_unlock_irqrestore(&common->irqlock, flags); |
60aa38d8 LP |
301 | /* Mark state of the current frame to active */ |
302 | common->cur_frm->vb.state = VB2_BUF_STATE_ACTIVE; | |
303 | /* Initialize field_id and started member */ | |
304 | ch->field_id = 0; | |
305 | common->started = 1; | |
306 | addr = vb2_dma_contig_plane_dma_addr(&common->cur_frm->vb, 0); | |
307 | ||
308 | /* Calculate the offset for Y and C data in the buffer */ | |
309 | vpif_calculate_offsets(ch); | |
310 | ||
311 | if ((vpif->std_info.frm_fmt && | |
312 | ((common->fmt.fmt.pix.field != V4L2_FIELD_NONE) && | |
313 | (common->fmt.fmt.pix.field != V4L2_FIELD_ANY))) || | |
314 | (!vpif->std_info.frm_fmt && | |
315 | (common->fmt.fmt.pix.field == V4L2_FIELD_NONE))) { | |
316 | vpif_dbg(1, debug, "conflict in field format and std format\n"); | |
317 | return -EINVAL; | |
318 | } | |
319 | ||
320 | /* configure 1 or 2 channel mode */ | |
f4ad8d74 LP |
321 | if (vpif_config_data->setup_input_channel_mode) { |
322 | ret = vpif_config_data-> | |
323 | setup_input_channel_mode(vpif->std_info.ycmux_mode); | |
324 | if (ret < 0) { | |
325 | vpif_dbg(1, debug, "can't set vpif channel mode\n"); | |
326 | return ret; | |
327 | } | |
60aa38d8 LP |
328 | } |
329 | ||
330 | /* Call vpif_set_params function to set the parameters and addresses */ | |
331 | ret = vpif_set_video_params(vpif, ch->channel_id); | |
332 | ||
333 | if (ret < 0) { | |
334 | vpif_dbg(1, debug, "can't set video params\n"); | |
335 | return ret; | |
336 | } | |
337 | ||
338 | common->started = ret; | |
339 | vpif_config_addr(ch, ret); | |
340 | ||
341 | common->set_addr(addr + common->ytop_off, | |
342 | addr + common->ybtm_off, | |
343 | addr + common->ctop_off, | |
344 | addr + common->cbtm_off); | |
345 | ||
346 | /** | |
347 | * Set interrupt for both the fields in VPIF Register enable channel in | |
348 | * VPIF register | |
349 | */ | |
9e18404a | 350 | channel_first_int[VPIF_VIDEO_INDEX][ch->channel_id] = 1; |
60aa38d8 LP |
351 | if ((VPIF_CHANNEL0_VIDEO == ch->channel_id)) { |
352 | channel0_intr_assert(); | |
353 | channel0_intr_enable(1); | |
354 | enable_channel0(1); | |
355 | } | |
356 | if ((VPIF_CHANNEL1_VIDEO == ch->channel_id) || | |
357 | (common->started == 2)) { | |
358 | channel1_intr_assert(); | |
359 | channel1_intr_enable(1); | |
360 | enable_channel1(1); | |
361 | } | |
60aa38d8 LP |
362 | |
363 | return 0; | |
364 | } | |
365 | ||
366 | /* abort streaming and wait for last buffer */ | |
367 | static int vpif_stop_streaming(struct vb2_queue *vq) | |
368 | { | |
369 | struct vpif_fh *fh = vb2_get_drv_priv(vq); | |
370 | struct channel_obj *ch = fh->channel; | |
371 | struct common_obj *common; | |
aec96832 | 372 | unsigned long flags; |
60aa38d8 LP |
373 | |
374 | if (!vb2_is_streaming(vq)) | |
375 | return 0; | |
376 | ||
377 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
378 | ||
379 | /* release all active buffers */ | |
aec96832 | 380 | spin_lock_irqsave(&common->irqlock, flags); |
60aa38d8 LP |
381 | while (!list_empty(&common->dma_queue)) { |
382 | common->next_frm = list_entry(common->dma_queue.next, | |
383 | struct vpif_cap_buffer, list); | |
384 | list_del(&common->next_frm->list); | |
385 | vb2_buffer_done(&common->next_frm->vb, VB2_BUF_STATE_ERROR); | |
386 | } | |
aec96832 | 387 | spin_unlock_irqrestore(&common->irqlock, flags); |
60aa38d8 LP |
388 | |
389 | return 0; | |
390 | } | |
391 | ||
392 | static struct vb2_ops video_qops = { | |
393 | .queue_setup = vpif_buffer_queue_setup, | |
394 | .wait_prepare = vpif_wait_prepare, | |
395 | .wait_finish = vpif_wait_finish, | |
396 | .buf_init = vpif_buffer_init, | |
397 | .buf_prepare = vpif_buffer_prepare, | |
398 | .start_streaming = vpif_start_streaming, | |
399 | .stop_streaming = vpif_stop_streaming, | |
400 | .buf_cleanup = vpif_buf_cleanup, | |
401 | .buf_queue = vpif_buffer_queue, | |
402 | }; | |
403 | ||
6ffefff5 MK |
404 | /** |
405 | * vpif_process_buffer_complete: process a completed buffer | |
406 | * @common: ptr to common channel object | |
407 | * | |
408 | * This function time stamp the buffer and mark it as DONE. It also | |
409 | * wake up any process waiting on the QUEUE and set the next buffer | |
410 | * as current | |
411 | */ | |
412 | static void vpif_process_buffer_complete(struct common_obj *common) | |
413 | { | |
8e6057b5 | 414 | v4l2_get_timestamp(&common->cur_frm->vb.v4l2_buf.timestamp); |
60aa38d8 LP |
415 | vb2_buffer_done(&common->cur_frm->vb, |
416 | VB2_BUF_STATE_DONE); | |
6ffefff5 MK |
417 | /* Make curFrm pointing to nextFrm */ |
418 | common->cur_frm = common->next_frm; | |
419 | } | |
420 | ||
421 | /** | |
422 | * vpif_schedule_next_buffer: set next buffer address for capture | |
423 | * @common : ptr to common channel object | |
424 | * | |
425 | * This function will get next buffer from the dma queue and | |
426 | * set the buffer address in the vpif register for capture. | |
427 | * the buffer is marked active | |
428 | */ | |
429 | static void vpif_schedule_next_buffer(struct common_obj *common) | |
430 | { | |
431 | unsigned long addr = 0; | |
432 | ||
aec96832 | 433 | spin_lock(&common->irqlock); |
6ffefff5 | 434 | common->next_frm = list_entry(common->dma_queue.next, |
60aa38d8 | 435 | struct vpif_cap_buffer, list); |
6ffefff5 | 436 | /* Remove that buffer from the buffer queue */ |
60aa38d8 | 437 | list_del(&common->next_frm->list); |
aec96832 | 438 | spin_unlock(&common->irqlock); |
60aa38d8 LP |
439 | common->next_frm->vb.state = VB2_BUF_STATE_ACTIVE; |
440 | addr = vb2_dma_contig_plane_dma_addr(&common->next_frm->vb, 0); | |
6ffefff5 MK |
441 | |
442 | /* Set top and bottom field addresses in VPIF registers */ | |
443 | common->set_addr(addr + common->ytop_off, | |
444 | addr + common->ybtm_off, | |
445 | addr + common->ctop_off, | |
446 | addr + common->cbtm_off); | |
447 | } | |
448 | ||
449 | /** | |
450 | * vpif_channel_isr : ISR handler for vpif capture | |
451 | * @irq: irq number | |
452 | * @dev_id: dev_id ptr | |
453 | * | |
454 | * It changes status of the captured buffer, takes next buffer from the queue | |
2c0ddd17 | 455 | * and sets its address in VPIF registers |
6ffefff5 MK |
456 | */ |
457 | static irqreturn_t vpif_channel_isr(int irq, void *dev_id) | |
458 | { | |
459 | struct vpif_device *dev = &vpif_obj; | |
460 | struct common_obj *common; | |
461 | struct channel_obj *ch; | |
462 | enum v4l2_field field; | |
463 | int channel_id = 0; | |
464 | int fid = -1, i; | |
465 | ||
466 | channel_id = *(int *)(dev_id); | |
b1fc4230 MH |
467 | if (!vpif_intr_status(channel_id)) |
468 | return IRQ_NONE; | |
469 | ||
6ffefff5 MK |
470 | ch = dev->dev[channel_id]; |
471 | ||
472 | field = ch->common[VPIF_VIDEO_INDEX].fmt.fmt.pix.field; | |
473 | ||
474 | for (i = 0; i < VPIF_NUMBER_OF_OBJECTS; i++) { | |
475 | common = &ch->common[i]; | |
476 | /* skip If streaming is not started in this channel */ | |
477 | if (0 == common->started) | |
478 | continue; | |
479 | ||
480 | /* Check the field format */ | |
481 | if (1 == ch->vpifparams.std_info.frm_fmt) { | |
482 | /* Progressive mode */ | |
aec96832 HV |
483 | spin_lock(&common->irqlock); |
484 | if (list_empty(&common->dma_queue)) { | |
485 | spin_unlock(&common->irqlock); | |
6ffefff5 | 486 | continue; |
aec96832 HV |
487 | } |
488 | spin_unlock(&common->irqlock); | |
6ffefff5 MK |
489 | |
490 | if (!channel_first_int[i][channel_id]) | |
491 | vpif_process_buffer_complete(common); | |
492 | ||
493 | channel_first_int[i][channel_id] = 0; | |
494 | ||
495 | vpif_schedule_next_buffer(common); | |
496 | ||
497 | ||
498 | channel_first_int[i][channel_id] = 0; | |
499 | } else { | |
500 | /** | |
501 | * Interlaced mode. If it is first interrupt, ignore | |
502 | * it | |
503 | */ | |
504 | if (channel_first_int[i][channel_id]) { | |
505 | channel_first_int[i][channel_id] = 0; | |
506 | continue; | |
507 | } | |
508 | if (0 == i) { | |
509 | ch->field_id ^= 1; | |
510 | /* Get field id from VPIF registers */ | |
511 | fid = vpif_channel_getfid(ch->channel_id); | |
512 | if (fid != ch->field_id) { | |
513 | /** | |
514 | * If field id does not match stored | |
515 | * field id, make them in sync | |
516 | */ | |
517 | if (0 == fid) | |
518 | ch->field_id = fid; | |
519 | return IRQ_HANDLED; | |
520 | } | |
521 | } | |
522 | /* device field id and local field id are in sync */ | |
523 | if (0 == fid) { | |
524 | /* this is even field */ | |
525 | if (common->cur_frm == common->next_frm) | |
526 | continue; | |
527 | ||
528 | /* mark the current buffer as done */ | |
529 | vpif_process_buffer_complete(common); | |
530 | } else if (1 == fid) { | |
531 | /* odd field */ | |
aec96832 | 532 | spin_lock(&common->irqlock); |
6ffefff5 | 533 | if (list_empty(&common->dma_queue) || |
aec96832 HV |
534 | (common->cur_frm != common->next_frm)) { |
535 | spin_unlock(&common->irqlock); | |
6ffefff5 | 536 | continue; |
aec96832 HV |
537 | } |
538 | spin_unlock(&common->irqlock); | |
6ffefff5 MK |
539 | |
540 | vpif_schedule_next_buffer(common); | |
541 | } | |
542 | } | |
543 | } | |
544 | return IRQ_HANDLED; | |
545 | } | |
546 | ||
547 | /** | |
548 | * vpif_update_std_info() - update standard related info | |
549 | * @ch: ptr to channel object | |
550 | * | |
551 | * For a given standard selected by application, update values | |
552 | * in the device data structures | |
553 | */ | |
554 | static int vpif_update_std_info(struct channel_obj *ch) | |
555 | { | |
556 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
557 | struct vpif_params *vpifparams = &ch->vpifparams; | |
558 | const struct vpif_channel_config_params *config; | |
2c0ddd17 | 559 | struct vpif_channel_config_params *std_info = &vpifparams->std_info; |
6ffefff5 MK |
560 | struct video_obj *vid_ch = &ch->video; |
561 | int index; | |
562 | ||
563 | vpif_dbg(2, debug, "vpif_update_std_info\n"); | |
564 | ||
aa444406 | 565 | for (index = 0; index < vpif_ch_params_count; index++) { |
ced9b21f | 566 | config = &vpif_ch_params[index]; |
40c8bcea MR |
567 | if (config->hd_sd == 0) { |
568 | vpif_dbg(2, debug, "SD format\n"); | |
569 | if (config->stdid & vid_ch->stdid) { | |
570 | memcpy(std_info, config, sizeof(*config)); | |
571 | break; | |
572 | } | |
573 | } else { | |
574 | vpif_dbg(2, debug, "HD format\n"); | |
0598c17b HV |
575 | if (!memcmp(&config->dv_timings, &vid_ch->dv_timings, |
576 | sizeof(vid_ch->dv_timings))) { | |
40c8bcea MR |
577 | memcpy(std_info, config, sizeof(*config)); |
578 | break; | |
579 | } | |
6ffefff5 MK |
580 | } |
581 | } | |
582 | ||
583 | /* standard not found */ | |
aa444406 | 584 | if (index == vpif_ch_params_count) |
6ffefff5 MK |
585 | return -EINVAL; |
586 | ||
587 | common->fmt.fmt.pix.width = std_info->width; | |
588 | common->width = std_info->width; | |
589 | common->fmt.fmt.pix.height = std_info->height; | |
590 | common->height = std_info->height; | |
591 | common->fmt.fmt.pix.bytesperline = std_info->width; | |
592 | vpifparams->video_params.hpitch = std_info->width; | |
593 | vpifparams->video_params.storage_mode = std_info->frm_fmt; | |
2c0ddd17 | 594 | |
6ffefff5 MK |
595 | return 0; |
596 | } | |
597 | ||
598 | /** | |
599 | * vpif_calculate_offsets : This function calculates buffers offsets | |
600 | * @ch : ptr to channel object | |
601 | * | |
602 | * This function calculates buffer offsets for Y and C in the top and | |
603 | * bottom field | |
604 | */ | |
605 | static void vpif_calculate_offsets(struct channel_obj *ch) | |
606 | { | |
607 | unsigned int hpitch, vpitch, sizeimage; | |
608 | struct video_obj *vid_ch = &(ch->video); | |
609 | struct vpif_params *vpifparams = &ch->vpifparams; | |
610 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
611 | enum v4l2_field field = common->fmt.fmt.pix.field; | |
612 | ||
613 | vpif_dbg(2, debug, "vpif_calculate_offsets\n"); | |
614 | ||
615 | if (V4L2_FIELD_ANY == field) { | |
616 | if (vpifparams->std_info.frm_fmt) | |
617 | vid_ch->buf_field = V4L2_FIELD_NONE; | |
618 | else | |
619 | vid_ch->buf_field = V4L2_FIELD_INTERLACED; | |
620 | } else | |
621 | vid_ch->buf_field = common->fmt.fmt.pix.field; | |
622 | ||
60aa38d8 | 623 | sizeimage = common->fmt.fmt.pix.sizeimage; |
6ffefff5 MK |
624 | |
625 | hpitch = common->fmt.fmt.pix.bytesperline; | |
626 | vpitch = sizeimage / (hpitch * 2); | |
627 | ||
628 | if ((V4L2_FIELD_NONE == vid_ch->buf_field) || | |
629 | (V4L2_FIELD_INTERLACED == vid_ch->buf_field)) { | |
630 | /* Calculate offsets for Y top, Y Bottom, C top and C Bottom */ | |
631 | common->ytop_off = 0; | |
632 | common->ybtm_off = hpitch; | |
633 | common->ctop_off = sizeimage / 2; | |
634 | common->cbtm_off = sizeimage / 2 + hpitch; | |
635 | } else if (V4L2_FIELD_SEQ_TB == vid_ch->buf_field) { | |
636 | /* Calculate offsets for Y top, Y Bottom, C top and C Bottom */ | |
637 | common->ytop_off = 0; | |
638 | common->ybtm_off = sizeimage / 4; | |
639 | common->ctop_off = sizeimage / 2; | |
640 | common->cbtm_off = common->ctop_off + sizeimage / 4; | |
641 | } else if (V4L2_FIELD_SEQ_BT == vid_ch->buf_field) { | |
642 | /* Calculate offsets for Y top, Y Bottom, C top and C Bottom */ | |
643 | common->ybtm_off = 0; | |
644 | common->ytop_off = sizeimage / 4; | |
645 | common->cbtm_off = sizeimage / 2; | |
646 | common->ctop_off = common->cbtm_off + sizeimage / 4; | |
647 | } | |
648 | if ((V4L2_FIELD_NONE == vid_ch->buf_field) || | |
649 | (V4L2_FIELD_INTERLACED == vid_ch->buf_field)) | |
650 | vpifparams->video_params.storage_mode = 1; | |
651 | else | |
652 | vpifparams->video_params.storage_mode = 0; | |
653 | ||
654 | if (1 == vpifparams->std_info.frm_fmt) | |
655 | vpifparams->video_params.hpitch = | |
656 | common->fmt.fmt.pix.bytesperline; | |
657 | else { | |
658 | if ((field == V4L2_FIELD_ANY) | |
659 | || (field == V4L2_FIELD_INTERLACED)) | |
660 | vpifparams->video_params.hpitch = | |
661 | common->fmt.fmt.pix.bytesperline * 2; | |
662 | else | |
663 | vpifparams->video_params.hpitch = | |
664 | common->fmt.fmt.pix.bytesperline; | |
665 | } | |
666 | ||
667 | ch->vpifparams.video_params.stdid = vpifparams->std_info.stdid; | |
668 | } | |
669 | ||
670 | /** | |
671 | * vpif_config_format: configure default frame format in the device | |
672 | * ch : ptr to channel object | |
673 | */ | |
674 | static void vpif_config_format(struct channel_obj *ch) | |
675 | { | |
676 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
677 | ||
678 | vpif_dbg(2, debug, "vpif_config_format\n"); | |
679 | ||
680 | common->fmt.fmt.pix.field = V4L2_FIELD_ANY; | |
681 | if (config_params.numbuffers[ch->channel_id] == 0) | |
682 | common->memory = V4L2_MEMORY_USERPTR; | |
683 | else | |
684 | common->memory = V4L2_MEMORY_MMAP; | |
685 | ||
686 | common->fmt.fmt.pix.sizeimage | |
687 | = config_params.channel_bufsize[ch->channel_id]; | |
688 | ||
689 | if (ch->vpifparams.iface.if_type == VPIF_IF_RAW_BAYER) | |
690 | common->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_SBGGR8; | |
691 | else | |
692 | common->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_YUV422P; | |
693 | common->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
694 | } | |
695 | ||
696 | /** | |
697 | * vpif_get_default_field() - Get default field type based on interface | |
698 | * @vpif_params - ptr to vpif params | |
699 | */ | |
700 | static inline enum v4l2_field vpif_get_default_field( | |
701 | struct vpif_interface *iface) | |
702 | { | |
703 | return (iface->if_type == VPIF_IF_RAW_BAYER) ? V4L2_FIELD_NONE : | |
704 | V4L2_FIELD_INTERLACED; | |
705 | } | |
706 | ||
707 | /** | |
708 | * vpif_check_format() - check given pixel format for compatibility | |
709 | * @ch - channel ptr | |
710 | * @pixfmt - Given pixel format | |
711 | * @update - update the values as per hardware requirement | |
712 | * | |
713 | * Check the application pixel format for S_FMT and update the input | |
714 | * values as per hardware limits for TRY_FMT. The default pixel and | |
715 | * field format is selected based on interface type. | |
716 | */ | |
717 | static int vpif_check_format(struct channel_obj *ch, | |
718 | struct v4l2_pix_format *pixfmt, | |
719 | int update) | |
720 | { | |
721 | struct common_obj *common = &(ch->common[VPIF_VIDEO_INDEX]); | |
722 | struct vpif_params *vpif_params = &ch->vpifparams; | |
723 | enum v4l2_field field = pixfmt->field; | |
724 | u32 sizeimage, hpitch, vpitch; | |
725 | int ret = -EINVAL; | |
726 | ||
727 | vpif_dbg(2, debug, "vpif_check_format\n"); | |
728 | /** | |
729 | * first check for the pixel format. If if_type is Raw bayer, | |
730 | * only V4L2_PIX_FMT_SBGGR8 format is supported. Otherwise only | |
731 | * V4L2_PIX_FMT_YUV422P is supported | |
732 | */ | |
733 | if (vpif_params->iface.if_type == VPIF_IF_RAW_BAYER) { | |
734 | if (pixfmt->pixelformat != V4L2_PIX_FMT_SBGGR8) { | |
735 | if (!update) { | |
736 | vpif_dbg(2, debug, "invalid pix format\n"); | |
737 | goto exit; | |
738 | } | |
739 | pixfmt->pixelformat = V4L2_PIX_FMT_SBGGR8; | |
740 | } | |
741 | } else { | |
742 | if (pixfmt->pixelformat != V4L2_PIX_FMT_YUV422P) { | |
743 | if (!update) { | |
744 | vpif_dbg(2, debug, "invalid pixel format\n"); | |
745 | goto exit; | |
746 | } | |
747 | pixfmt->pixelformat = V4L2_PIX_FMT_YUV422P; | |
748 | } | |
749 | } | |
750 | ||
751 | if (!(VPIF_VALID_FIELD(field))) { | |
752 | if (!update) { | |
753 | vpif_dbg(2, debug, "invalid field format\n"); | |
754 | goto exit; | |
755 | } | |
756 | /** | |
757 | * By default use FIELD_NONE for RAW Bayer capture | |
758 | * and FIELD_INTERLACED for other interfaces | |
759 | */ | |
760 | field = vpif_get_default_field(&vpif_params->iface); | |
761 | } else if (field == V4L2_FIELD_ANY) | |
762 | /* unsupported field. Use default */ | |
763 | field = vpif_get_default_field(&vpif_params->iface); | |
764 | ||
765 | /* validate the hpitch */ | |
766 | hpitch = pixfmt->bytesperline; | |
767 | if (hpitch < vpif_params->std_info.width) { | |
768 | if (!update) { | |
769 | vpif_dbg(2, debug, "invalid hpitch\n"); | |
770 | goto exit; | |
771 | } | |
772 | hpitch = vpif_params->std_info.width; | |
773 | } | |
774 | ||
60aa38d8 | 775 | sizeimage = pixfmt->sizeimage; |
6ffefff5 MK |
776 | |
777 | vpitch = sizeimage / (hpitch * 2); | |
778 | ||
779 | /* validate the vpitch */ | |
780 | if (vpitch < vpif_params->std_info.height) { | |
781 | if (!update) { | |
782 | vpif_dbg(2, debug, "Invalid vpitch\n"); | |
783 | goto exit; | |
784 | } | |
785 | vpitch = vpif_params->std_info.height; | |
786 | } | |
787 | ||
788 | /* Check for 8 byte alignment */ | |
789 | if (!ALIGN(hpitch, 8)) { | |
790 | if (!update) { | |
791 | vpif_dbg(2, debug, "invalid pitch alignment\n"); | |
792 | goto exit; | |
793 | } | |
794 | /* adjust to next 8 byte boundary */ | |
795 | hpitch = (((hpitch + 7) / 8) * 8); | |
796 | } | |
797 | /* if update is set, modify the bytesperline and sizeimage */ | |
798 | if (update) { | |
799 | pixfmt->bytesperline = hpitch; | |
800 | pixfmt->sizeimage = hpitch * vpitch * 2; | |
801 | } | |
802 | /** | |
803 | * Image width and height is always based on current standard width and | |
804 | * height | |
805 | */ | |
806 | pixfmt->width = common->fmt.fmt.pix.width; | |
807 | pixfmt->height = common->fmt.fmt.pix.height; | |
808 | return 0; | |
809 | exit: | |
810 | return ret; | |
811 | } | |
812 | ||
813 | /** | |
814 | * vpif_config_addr() - function to configure buffer address in vpif | |
815 | * @ch - channel ptr | |
816 | * @muxmode - channel mux mode | |
817 | */ | |
818 | static void vpif_config_addr(struct channel_obj *ch, int muxmode) | |
819 | { | |
820 | struct common_obj *common; | |
821 | ||
822 | vpif_dbg(2, debug, "vpif_config_addr\n"); | |
823 | ||
824 | common = &(ch->common[VPIF_VIDEO_INDEX]); | |
825 | ||
826 | if (VPIF_CHANNEL1_VIDEO == ch->channel_id) | |
827 | common->set_addr = ch1_set_videobuf_addr; | |
828 | else if (2 == muxmode) | |
829 | common->set_addr = ch0_set_videobuf_addr_yc_nmux; | |
830 | else | |
831 | common->set_addr = ch0_set_videobuf_addr; | |
832 | } | |
833 | ||
834 | /** | |
6f45b1b9 | 835 | * vpif_mmap : It is used to map kernel space buffers into user spaces |
6ffefff5 MK |
836 | * @filep: file pointer |
837 | * @vma: ptr to vm_area_struct | |
838 | */ | |
839 | static int vpif_mmap(struct file *filep, struct vm_area_struct *vma) | |
840 | { | |
841 | /* Get the channel object and file handle object */ | |
842 | struct vpif_fh *fh = filep->private_data; | |
843 | struct channel_obj *ch = fh->channel; | |
844 | struct common_obj *common = &(ch->common[VPIF_VIDEO_INDEX]); | |
7224679a | 845 | int ret; |
6ffefff5 MK |
846 | |
847 | vpif_dbg(2, debug, "vpif_mmap\n"); | |
848 | ||
7224679a HV |
849 | if (mutex_lock_interruptible(&common->lock)) |
850 | return -ERESTARTSYS; | |
851 | ret = vb2_mmap(&common->buffer_queue, vma); | |
852 | mutex_unlock(&common->lock); | |
853 | return ret; | |
6ffefff5 MK |
854 | } |
855 | ||
856 | /** | |
857 | * vpif_poll: It is used for select/poll system call | |
858 | * @filep: file pointer | |
859 | * @wait: poll table to wait | |
860 | */ | |
861 | static unsigned int vpif_poll(struct file *filep, poll_table * wait) | |
862 | { | |
6ffefff5 MK |
863 | struct vpif_fh *fh = filep->private_data; |
864 | struct channel_obj *channel = fh->channel; | |
865 | struct common_obj *common = &(channel->common[VPIF_VIDEO_INDEX]); | |
7224679a | 866 | unsigned int res = 0; |
6ffefff5 MK |
867 | |
868 | vpif_dbg(2, debug, "vpif_poll\n"); | |
869 | ||
7224679a HV |
870 | if (common->started) { |
871 | mutex_lock(&common->lock); | |
872 | res = vb2_poll(&common->buffer_queue, filep, wait); | |
873 | mutex_unlock(&common->lock); | |
874 | } | |
875 | return res; | |
6ffefff5 MK |
876 | } |
877 | ||
878 | /** | |
879 | * vpif_open : vpif open handler | |
880 | * @filep: file ptr | |
881 | * | |
882 | * It creates object of file handle structure and stores it in private_data | |
883 | * member of filepointer | |
884 | */ | |
885 | static int vpif_open(struct file *filep) | |
886 | { | |
6ffefff5 MK |
887 | struct video_device *vdev = video_devdata(filep); |
888 | struct common_obj *common; | |
889 | struct video_obj *vid_ch; | |
890 | struct channel_obj *ch; | |
891 | struct vpif_fh *fh; | |
6ffefff5 MK |
892 | |
893 | vpif_dbg(2, debug, "vpif_open\n"); | |
894 | ||
895 | ch = video_get_drvdata(vdev); | |
896 | ||
897 | vid_ch = &ch->video; | |
898 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
899 | ||
6ffefff5 | 900 | /* Allocate memory for the file handle object */ |
1f8766b4 | 901 | fh = kzalloc(sizeof(struct vpif_fh), GFP_KERNEL); |
6ffefff5 MK |
902 | if (NULL == fh) { |
903 | vpif_err("unable to allocate memory for file handle object\n"); | |
46656afa | 904 | return -ENOMEM; |
6ffefff5 MK |
905 | } |
906 | ||
7224679a HV |
907 | if (mutex_lock_interruptible(&common->lock)) { |
908 | kfree(fh); | |
909 | return -ERESTARTSYS; | |
910 | } | |
6ffefff5 MK |
911 | /* store pointer to fh in private_data member of filep */ |
912 | filep->private_data = fh; | |
913 | fh->channel = ch; | |
914 | fh->initialized = 0; | |
915 | /* If decoder is not initialized. initialize it */ | |
916 | if (!ch->initialized) { | |
917 | fh->initialized = 1; | |
918 | ch->initialized = 1; | |
919 | memset(&(ch->vpifparams), 0, sizeof(struct vpif_params)); | |
920 | } | |
921 | /* Increment channel usrs counter */ | |
922 | ch->usrs++; | |
923 | /* Set io_allowed member to false */ | |
924 | fh->io_allowed[VPIF_VIDEO_INDEX] = 0; | |
925 | /* Initialize priority of this instance to default priority */ | |
926 | fh->prio = V4L2_PRIORITY_UNSET; | |
927 | v4l2_prio_open(&ch->prio, &fh->prio); | |
7224679a | 928 | mutex_unlock(&common->lock); |
46656afa | 929 | return 0; |
6ffefff5 MK |
930 | } |
931 | ||
932 | /** | |
933 | * vpif_release : function to clean up file close | |
934 | * @filep: file pointer | |
935 | * | |
6f45b1b9 | 936 | * This function deletes buffer queue, frees the buffers and the vpif file |
6ffefff5 MK |
937 | * handle |
938 | */ | |
939 | static int vpif_release(struct file *filep) | |
940 | { | |
941 | struct vpif_fh *fh = filep->private_data; | |
942 | struct channel_obj *ch = fh->channel; | |
943 | struct common_obj *common; | |
944 | ||
945 | vpif_dbg(2, debug, "vpif_release\n"); | |
946 | ||
947 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
948 | ||
7224679a | 949 | mutex_lock(&common->lock); |
6ffefff5 MK |
950 | /* if this instance is doing IO */ |
951 | if (fh->io_allowed[VPIF_VIDEO_INDEX]) { | |
952 | /* Reset io_usrs member of channel object */ | |
953 | common->io_usrs = 0; | |
954 | /* Disable channel as per its device type and channel id */ | |
955 | if (VPIF_CHANNEL0_VIDEO == ch->channel_id) { | |
956 | enable_channel0(0); | |
957 | channel0_intr_enable(0); | |
958 | } | |
959 | if ((VPIF_CHANNEL1_VIDEO == ch->channel_id) || | |
960 | (2 == common->started)) { | |
961 | enable_channel1(0); | |
962 | channel1_intr_enable(0); | |
963 | } | |
964 | common->started = 0; | |
965 | /* Free buffers allocated */ | |
60aa38d8 LP |
966 | vb2_queue_release(&common->buffer_queue); |
967 | vb2_dma_contig_cleanup_ctx(common->alloc_ctx); | |
6ffefff5 MK |
968 | } |
969 | ||
970 | /* Decrement channel usrs counter */ | |
971 | ch->usrs--; | |
972 | ||
6ffefff5 | 973 | /* Close the priority */ |
ffb4877b | 974 | v4l2_prio_close(&ch->prio, fh->prio); |
6ffefff5 MK |
975 | |
976 | if (fh->initialized) | |
977 | ch->initialized = 0; | |
978 | ||
7224679a | 979 | mutex_unlock(&common->lock); |
6ffefff5 MK |
980 | filep->private_data = NULL; |
981 | kfree(fh); | |
982 | return 0; | |
983 | } | |
984 | ||
985 | /** | |
986 | * vpif_reqbufs() - request buffer handler | |
987 | * @file: file ptr | |
988 | * @priv: file handle | |
989 | * @reqbuf: request buffer structure ptr | |
990 | */ | |
991 | static int vpif_reqbufs(struct file *file, void *priv, | |
992 | struct v4l2_requestbuffers *reqbuf) | |
993 | { | |
994 | struct vpif_fh *fh = priv; | |
995 | struct channel_obj *ch = fh->channel; | |
996 | struct common_obj *common; | |
997 | u8 index = 0; | |
60aa38d8 | 998 | struct vb2_queue *q; |
b4a711e7 | 999 | int ret; |
6ffefff5 MK |
1000 | |
1001 | vpif_dbg(2, debug, "vpif_reqbufs\n"); | |
1002 | ||
1003 | /** | |
1004 | * This file handle has not initialized the channel, | |
1005 | * It is not allowed to do settings | |
1006 | */ | |
1007 | if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) | |
1008 | || (VPIF_CHANNEL1_VIDEO == ch->channel_id)) { | |
1009 | if (!fh->initialized) { | |
1010 | vpif_dbg(1, debug, "Channel Busy\n"); | |
1011 | return -EBUSY; | |
1012 | } | |
1013 | } | |
1014 | ||
764af39a | 1015 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != reqbuf->type || !vpif_dev) |
6ffefff5 MK |
1016 | return -EINVAL; |
1017 | ||
1018 | index = VPIF_VIDEO_INDEX; | |
1019 | ||
1020 | common = &ch->common[index]; | |
1021 | ||
46656afa HV |
1022 | if (0 != common->io_usrs) |
1023 | return -EBUSY; | |
6ffefff5 | 1024 | |
60aa38d8 LP |
1025 | /* Initialize videobuf2 queue as per the buffer type */ |
1026 | common->alloc_ctx = vb2_dma_contig_init_ctx(vpif_dev); | |
94b76a88 | 1027 | if (IS_ERR(common->alloc_ctx)) { |
60aa38d8 | 1028 | vpif_err("Failed to get the context\n"); |
94b76a88 | 1029 | return PTR_ERR(common->alloc_ctx); |
60aa38d8 LP |
1030 | } |
1031 | q = &common->buffer_queue; | |
1032 | q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1033 | q->io_modes = VB2_MMAP | VB2_USERPTR; | |
1034 | q->drv_priv = fh; | |
1035 | q->ops = &video_qops; | |
1036 | q->mem_ops = &vb2_dma_contig_memops; | |
1037 | q->buf_struct_size = sizeof(struct vpif_cap_buffer); | |
6aa69f99 | 1038 | q->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
60aa38d8 | 1039 | |
b4a711e7 LP |
1040 | ret = vb2_queue_init(q); |
1041 | if (ret) { | |
1042 | vpif_err("vpif_capture: vb2_queue_init() failed\n"); | |
1043 | vb2_dma_contig_cleanup_ctx(common->alloc_ctx); | |
1044 | return ret; | |
1045 | } | |
6ffefff5 MK |
1046 | /* Set io allowed member of file handle to TRUE */ |
1047 | fh->io_allowed[index] = 1; | |
1048 | /* Increment io usrs member of channel object to 1 */ | |
1049 | common->io_usrs = 1; | |
1050 | /* Store type of memory requested in channel object */ | |
1051 | common->memory = reqbuf->memory; | |
1052 | INIT_LIST_HEAD(&common->dma_queue); | |
1053 | ||
1054 | /* Allocate buffers */ | |
60aa38d8 | 1055 | return vb2_reqbufs(&common->buffer_queue, reqbuf); |
6ffefff5 MK |
1056 | } |
1057 | ||
1058 | /** | |
1059 | * vpif_querybuf() - query buffer handler | |
1060 | * @file: file ptr | |
1061 | * @priv: file handle | |
1062 | * @buf: v4l2 buffer structure ptr | |
1063 | */ | |
1064 | static int vpif_querybuf(struct file *file, void *priv, | |
1065 | struct v4l2_buffer *buf) | |
1066 | { | |
1067 | struct vpif_fh *fh = priv; | |
1068 | struct channel_obj *ch = fh->channel; | |
1069 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1070 | ||
1071 | vpif_dbg(2, debug, "vpif_querybuf\n"); | |
1072 | ||
1073 | if (common->fmt.type != buf->type) | |
1074 | return -EINVAL; | |
1075 | ||
1076 | if (common->memory != V4L2_MEMORY_MMAP) { | |
1077 | vpif_dbg(1, debug, "Invalid memory\n"); | |
1078 | return -EINVAL; | |
1079 | } | |
1080 | ||
60aa38d8 | 1081 | return vb2_querybuf(&common->buffer_queue, buf); |
6ffefff5 MK |
1082 | } |
1083 | ||
1084 | /** | |
1085 | * vpif_qbuf() - query buffer handler | |
1086 | * @file: file ptr | |
1087 | * @priv: file handle | |
1088 | * @buf: v4l2 buffer structure ptr | |
1089 | */ | |
1090 | static int vpif_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf) | |
1091 | { | |
1092 | ||
1093 | struct vpif_fh *fh = priv; | |
1094 | struct channel_obj *ch = fh->channel; | |
1095 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1096 | struct v4l2_buffer tbuf = *buf; | |
6ffefff5 MK |
1097 | |
1098 | vpif_dbg(2, debug, "vpif_qbuf\n"); | |
1099 | ||
1100 | if (common->fmt.type != tbuf.type) { | |
1101 | vpif_err("invalid buffer type\n"); | |
1102 | return -EINVAL; | |
1103 | } | |
1104 | ||
1105 | if (!fh->io_allowed[VPIF_VIDEO_INDEX]) { | |
60aa38d8 | 1106 | vpif_err("fh io not allowed\n"); |
6ffefff5 MK |
1107 | return -EACCES; |
1108 | } | |
1109 | ||
60aa38d8 | 1110 | return vb2_qbuf(&common->buffer_queue, buf); |
6ffefff5 MK |
1111 | } |
1112 | ||
1113 | /** | |
1114 | * vpif_dqbuf() - query buffer handler | |
1115 | * @file: file ptr | |
1116 | * @priv: file handle | |
1117 | * @buf: v4l2 buffer structure ptr | |
1118 | */ | |
1119 | static int vpif_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf) | |
1120 | { | |
1121 | struct vpif_fh *fh = priv; | |
1122 | struct channel_obj *ch = fh->channel; | |
1123 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1124 | ||
1125 | vpif_dbg(2, debug, "vpif_dqbuf\n"); | |
1126 | ||
60aa38d8 LP |
1127 | return vb2_dqbuf(&common->buffer_queue, buf, |
1128 | (file->f_flags & O_NONBLOCK)); | |
6ffefff5 MK |
1129 | } |
1130 | ||
1131 | /** | |
1132 | * vpif_streamon() - streamon handler | |
1133 | * @file: file ptr | |
1134 | * @priv: file handle | |
1135 | * @buftype: v4l2 buffer type | |
1136 | */ | |
1137 | static int vpif_streamon(struct file *file, void *priv, | |
1138 | enum v4l2_buf_type buftype) | |
1139 | { | |
1140 | ||
6ffefff5 MK |
1141 | struct vpif_fh *fh = priv; |
1142 | struct channel_obj *ch = fh->channel; | |
1143 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1144 | struct channel_obj *oth_ch = vpif_obj.dev[!ch->channel_id]; | |
1145 | struct vpif_params *vpif; | |
6ffefff5 MK |
1146 | int ret = 0; |
1147 | ||
1148 | vpif_dbg(2, debug, "vpif_streamon\n"); | |
1149 | ||
1150 | vpif = &ch->vpifparams; | |
1151 | ||
1152 | if (buftype != V4L2_BUF_TYPE_VIDEO_CAPTURE) { | |
1153 | vpif_dbg(1, debug, "buffer type not supported\n"); | |
1154 | return -EINVAL; | |
1155 | } | |
1156 | ||
1157 | /* If file handle is not allowed IO, return error */ | |
1158 | if (!fh->io_allowed[VPIF_VIDEO_INDEX]) { | |
1159 | vpif_dbg(1, debug, "io not allowed\n"); | |
1160 | return -EACCES; | |
1161 | } | |
1162 | ||
1163 | /* If Streaming is already started, return error */ | |
1164 | if (common->started) { | |
1165 | vpif_dbg(1, debug, "channel->started\n"); | |
1166 | return -EBUSY; | |
1167 | } | |
1168 | ||
1169 | if ((ch->channel_id == VPIF_CHANNEL0_VIDEO && | |
1170 | oth_ch->common[VPIF_VIDEO_INDEX].started && | |
1171 | vpif->std_info.ycmux_mode == 0) || | |
1172 | ((ch->channel_id == VPIF_CHANNEL1_VIDEO) && | |
1173 | (2 == oth_ch->common[VPIF_VIDEO_INDEX].started))) { | |
1174 | vpif_dbg(1, debug, "other channel is being used\n"); | |
1175 | return -EBUSY; | |
1176 | } | |
1177 | ||
1178 | ret = vpif_check_format(ch, &common->fmt.fmt.pix, 0); | |
1179 | if (ret) | |
1180 | return ret; | |
1181 | ||
1182 | /* Enable streamon on the sub device */ | |
178cce12 | 1183 | ret = v4l2_subdev_call(ch->sd, video, s_stream, 1); |
6ffefff5 | 1184 | |
178cce12 | 1185 | if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV) { |
6ffefff5 MK |
1186 | vpif_dbg(1, debug, "stream on failed in subdev\n"); |
1187 | return ret; | |
1188 | } | |
1189 | ||
60aa38d8 LP |
1190 | /* Call vb2_streamon to start streaming in videobuf2 */ |
1191 | ret = vb2_streamon(&common->buffer_queue, buftype); | |
6ffefff5 | 1192 | if (ret) { |
60aa38d8 | 1193 | vpif_dbg(1, debug, "vb2_streamon\n"); |
6ffefff5 MK |
1194 | return ret; |
1195 | } | |
1196 | ||
6ffefff5 MK |
1197 | return ret; |
1198 | } | |
1199 | ||
1200 | /** | |
1201 | * vpif_streamoff() - streamoff handler | |
1202 | * @file: file ptr | |
1203 | * @priv: file handle | |
1204 | * @buftype: v4l2 buffer type | |
1205 | */ | |
1206 | static int vpif_streamoff(struct file *file, void *priv, | |
1207 | enum v4l2_buf_type buftype) | |
1208 | { | |
1209 | ||
1210 | struct vpif_fh *fh = priv; | |
1211 | struct channel_obj *ch = fh->channel; | |
1212 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1213 | int ret; | |
1214 | ||
1215 | vpif_dbg(2, debug, "vpif_streamoff\n"); | |
1216 | ||
1217 | if (buftype != V4L2_BUF_TYPE_VIDEO_CAPTURE) { | |
1218 | vpif_dbg(1, debug, "buffer type not supported\n"); | |
1219 | return -EINVAL; | |
1220 | } | |
1221 | ||
1222 | /* If io is allowed for this file handle, return error */ | |
1223 | if (!fh->io_allowed[VPIF_VIDEO_INDEX]) { | |
1224 | vpif_dbg(1, debug, "io not allowed\n"); | |
1225 | return -EACCES; | |
1226 | } | |
1227 | ||
1228 | /* If streaming is not started, return error */ | |
1229 | if (!common->started) { | |
1230 | vpif_dbg(1, debug, "channel->started\n"); | |
1231 | return -EINVAL; | |
1232 | } | |
1233 | ||
6ffefff5 MK |
1234 | /* disable channel */ |
1235 | if (VPIF_CHANNEL0_VIDEO == ch->channel_id) { | |
1236 | enable_channel0(0); | |
1237 | channel0_intr_enable(0); | |
1238 | } else { | |
1239 | enable_channel1(0); | |
1240 | channel1_intr_enable(0); | |
1241 | } | |
1242 | ||
1243 | common->started = 0; | |
1244 | ||
178cce12 | 1245 | ret = v4l2_subdev_call(ch->sd, video, s_stream, 0); |
6ffefff5 | 1246 | |
178cce12 | 1247 | if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV) |
6ffefff5 MK |
1248 | vpif_dbg(1, debug, "stream off failed in subdev\n"); |
1249 | ||
60aa38d8 | 1250 | return vb2_streamoff(&common->buffer_queue, buftype); |
6ffefff5 MK |
1251 | } |
1252 | ||
1253 | /** | |
178cce12 HV |
1254 | * vpif_input_to_subdev() - Maps input to sub device |
1255 | * @vpif_cfg - global config ptr | |
1256 | * @chan_cfg - channel config ptr | |
6ffefff5 | 1257 | * @input_index - Given input index from application |
6ffefff5 MK |
1258 | * |
1259 | * lookup the sub device information for a given input index. | |
1260 | * we report all the inputs to application. inputs table also | |
1261 | * has sub device name for the each input | |
1262 | */ | |
178cce12 HV |
1263 | static int vpif_input_to_subdev( |
1264 | struct vpif_capture_config *vpif_cfg, | |
1265 | struct vpif_capture_chan_config *chan_cfg, | |
1266 | int input_index) | |
6ffefff5 | 1267 | { |
178cce12 HV |
1268 | struct vpif_subdev_info *subdev_info; |
1269 | const char *subdev_name; | |
6ffefff5 MK |
1270 | int i; |
1271 | ||
178cce12 | 1272 | vpif_dbg(2, debug, "vpif_input_to_subdev\n"); |
6ffefff5 | 1273 | |
178cce12 HV |
1274 | subdev_name = chan_cfg->inputs[input_index].subdev_name; |
1275 | if (subdev_name == NULL) | |
1276 | return -1; | |
6ffefff5 MK |
1277 | |
1278 | /* loop through the sub device list to get the sub device info */ | |
1279 | for (i = 0; i < vpif_cfg->subdev_count; i++) { | |
1280 | subdev_info = &vpif_cfg->subdev_info[i]; | |
1281 | if (!strcmp(subdev_info->name, subdev_name)) | |
178cce12 | 1282 | return i; |
6ffefff5 | 1283 | } |
178cce12 HV |
1284 | return -1; |
1285 | } | |
6ffefff5 | 1286 | |
178cce12 HV |
1287 | /** |
1288 | * vpif_set_input() - Select an input | |
1289 | * @vpif_cfg - global config ptr | |
1290 | * @ch - channel | |
1291 | * @_index - Given input index from application | |
1292 | * | |
1293 | * Select the given input. | |
1294 | */ | |
1295 | static int vpif_set_input( | |
1296 | struct vpif_capture_config *vpif_cfg, | |
1297 | struct channel_obj *ch, | |
1298 | int index) | |
1299 | { | |
1300 | struct vpif_capture_chan_config *chan_cfg = | |
1301 | &vpif_cfg->chan_config[ch->channel_id]; | |
1302 | struct vpif_subdev_info *subdev_info = NULL; | |
1303 | struct v4l2_subdev *sd = NULL; | |
1304 | u32 input = 0, output = 0; | |
1305 | int sd_index; | |
1306 | int ret; | |
6ffefff5 | 1307 | |
178cce12 HV |
1308 | sd_index = vpif_input_to_subdev(vpif_cfg, chan_cfg, index); |
1309 | if (sd_index >= 0) { | |
1310 | sd = vpif_obj.sd[sd_index]; | |
1311 | subdev_info = &vpif_cfg->subdev_info[sd_index]; | |
1312 | } | |
6ffefff5 | 1313 | |
178cce12 HV |
1314 | /* first setup input path from sub device to vpif */ |
1315 | if (sd && vpif_cfg->setup_input_path) { | |
1316 | ret = vpif_cfg->setup_input_path(ch->channel_id, | |
1317 | subdev_info->name); | |
1318 | if (ret < 0) { | |
1319 | vpif_dbg(1, debug, "couldn't setup input path for the" \ | |
1320 | " sub device %s, for input index %d\n", | |
1321 | subdev_info->name, index); | |
1322 | return ret; | |
1323 | } | |
1324 | } | |
1325 | ||
1326 | if (sd) { | |
1327 | input = chan_cfg->inputs[index].input_route; | |
1328 | output = chan_cfg->inputs[index].output_route; | |
1329 | ret = v4l2_subdev_call(sd, video, s_routing, | |
1330 | input, output, 0); | |
1331 | if (ret < 0 && ret != -ENOIOCTLCMD) { | |
1332 | vpif_dbg(1, debug, "Failed to set input\n"); | |
1333 | return ret; | |
1334 | } | |
1335 | } | |
1336 | ch->input_idx = index; | |
1337 | ch->sd = sd; | |
1338 | /* copy interface parameters to vpif */ | |
0d4f35f3 | 1339 | ch->vpifparams.iface = chan_cfg->vpif_if; |
178cce12 HV |
1340 | |
1341 | /* update tvnorms from the sub device input info */ | |
1342 | ch->video_dev->tvnorms = chan_cfg->inputs[index].input.std; | |
1343 | return 0; | |
6ffefff5 MK |
1344 | } |
1345 | ||
1346 | /** | |
1347 | * vpif_querystd() - querystd handler | |
1348 | * @file: file ptr | |
1349 | * @priv: file handle | |
1350 | * @std_id: ptr to std id | |
1351 | * | |
1352 | * This function is called to detect standard at the selected input | |
1353 | */ | |
1354 | static int vpif_querystd(struct file *file, void *priv, v4l2_std_id *std_id) | |
1355 | { | |
1356 | struct vpif_fh *fh = priv; | |
1357 | struct channel_obj *ch = fh->channel; | |
6ffefff5 MK |
1358 | int ret = 0; |
1359 | ||
1360 | vpif_dbg(2, debug, "vpif_querystd\n"); | |
1361 | ||
6ffefff5 | 1362 | /* Call querystd function of decoder device */ |
178cce12 | 1363 | ret = v4l2_subdev_call(ch->sd, video, querystd, std_id); |
6ffefff5 | 1364 | |
178cce12 HV |
1365 | if (ret == -ENOIOCTLCMD || ret == -ENODEV) |
1366 | return -ENODATA; | |
1367 | if (ret) { | |
1368 | vpif_dbg(1, debug, "Failed to query standard for sub devices\n"); | |
1369 | return ret; | |
1370 | } | |
1371 | ||
1372 | return 0; | |
6ffefff5 MK |
1373 | } |
1374 | ||
1375 | /** | |
1376 | * vpif_g_std() - get STD handler | |
1377 | * @file: file ptr | |
1378 | * @priv: file handle | |
1379 | * @std_id: ptr to std id | |
1380 | */ | |
1381 | static int vpif_g_std(struct file *file, void *priv, v4l2_std_id *std) | |
1382 | { | |
1383 | struct vpif_fh *fh = priv; | |
1384 | struct channel_obj *ch = fh->channel; | |
1385 | ||
1386 | vpif_dbg(2, debug, "vpif_g_std\n"); | |
1387 | ||
1388 | *std = ch->video.stdid; | |
1389 | return 0; | |
1390 | } | |
1391 | ||
1392 | /** | |
1393 | * vpif_s_std() - set STD handler | |
1394 | * @file: file ptr | |
1395 | * @priv: file handle | |
1396 | * @std_id: ptr to std id | |
1397 | */ | |
314527ac | 1398 | static int vpif_s_std(struct file *file, void *priv, v4l2_std_id std_id) |
6ffefff5 MK |
1399 | { |
1400 | struct vpif_fh *fh = priv; | |
1401 | struct channel_obj *ch = fh->channel; | |
1402 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1403 | int ret = 0; | |
1404 | ||
1405 | vpif_dbg(2, debug, "vpif_s_std\n"); | |
1406 | ||
1407 | if (common->started) { | |
1408 | vpif_err("streaming in progress\n"); | |
1409 | return -EBUSY; | |
1410 | } | |
1411 | ||
1412 | if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) || | |
1413 | (VPIF_CHANNEL1_VIDEO == ch->channel_id)) { | |
1414 | if (!fh->initialized) { | |
1415 | vpif_dbg(1, debug, "Channel Busy\n"); | |
1416 | return -EBUSY; | |
1417 | } | |
1418 | } | |
1419 | ||
ffb4877b | 1420 | ret = v4l2_prio_check(&ch->prio, fh->prio); |
6ffefff5 MK |
1421 | if (0 != ret) |
1422 | return ret; | |
1423 | ||
1424 | fh->initialized = 1; | |
1425 | ||
1426 | /* Call encoder subdevice function to set the standard */ | |
314527ac | 1427 | ch->video.stdid = std_id; |
0598c17b | 1428 | memset(&ch->video.dv_timings, 0, sizeof(ch->video.dv_timings)); |
6ffefff5 MK |
1429 | |
1430 | /* Get the information about the standard */ | |
1431 | if (vpif_update_std_info(ch)) { | |
6ffefff5 | 1432 | vpif_err("Error getting the standard info\n"); |
46656afa | 1433 | return -EINVAL; |
6ffefff5 MK |
1434 | } |
1435 | ||
1436 | /* Configure the default format information */ | |
1437 | vpif_config_format(ch); | |
1438 | ||
1439 | /* set standard in the sub device */ | |
314527ac | 1440 | ret = v4l2_subdev_call(ch->sd, core, s_std, std_id); |
178cce12 | 1441 | if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV) { |
6ffefff5 | 1442 | vpif_dbg(1, debug, "Failed to set standard for sub devices\n"); |
178cce12 HV |
1443 | return ret; |
1444 | } | |
1445 | return 0; | |
6ffefff5 MK |
1446 | } |
1447 | ||
1448 | /** | |
1449 | * vpif_enum_input() - ENUMINPUT handler | |
1450 | * @file: file ptr | |
1451 | * @priv: file handle | |
1452 | * @input: ptr to input structure | |
1453 | */ | |
1454 | static int vpif_enum_input(struct file *file, void *priv, | |
1455 | struct v4l2_input *input) | |
1456 | { | |
1457 | ||
1458 | struct vpif_capture_config *config = vpif_dev->platform_data; | |
1459 | struct vpif_capture_chan_config *chan_cfg; | |
1460 | struct vpif_fh *fh = priv; | |
1461 | struct channel_obj *ch = fh->channel; | |
1462 | ||
1463 | chan_cfg = &config->chan_config[ch->channel_id]; | |
1464 | ||
1465 | if (input->index >= chan_cfg->input_count) { | |
1466 | vpif_dbg(1, debug, "Invalid input index\n"); | |
1467 | return -EINVAL; | |
1468 | } | |
1469 | ||
1470 | memcpy(input, &chan_cfg->inputs[input->index].input, | |
1471 | sizeof(*input)); | |
1472 | return 0; | |
1473 | } | |
1474 | ||
1475 | /** | |
1476 | * vpif_g_input() - Get INPUT handler | |
1477 | * @file: file ptr | |
1478 | * @priv: file handle | |
1479 | * @index: ptr to input index | |
1480 | */ | |
1481 | static int vpif_g_input(struct file *file, void *priv, unsigned int *index) | |
1482 | { | |
1483 | struct vpif_fh *fh = priv; | |
1484 | struct channel_obj *ch = fh->channel; | |
6ffefff5 | 1485 | |
6f47c6c6 | 1486 | *index = ch->input_idx; |
6ffefff5 MK |
1487 | return 0; |
1488 | } | |
1489 | ||
1490 | /** | |
1491 | * vpif_s_input() - Set INPUT handler | |
1492 | * @file: file ptr | |
1493 | * @priv: file handle | |
1494 | * @index: input index | |
1495 | */ | |
1496 | static int vpif_s_input(struct file *file, void *priv, unsigned int index) | |
1497 | { | |
1498 | struct vpif_capture_config *config = vpif_dev->platform_data; | |
1499 | struct vpif_capture_chan_config *chan_cfg; | |
1500 | struct vpif_fh *fh = priv; | |
1501 | struct channel_obj *ch = fh->channel; | |
1502 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
178cce12 | 1503 | int ret; |
6ffefff5 MK |
1504 | |
1505 | chan_cfg = &config->chan_config[ch->channel_id]; | |
1506 | ||
7aaad131 HV |
1507 | if (index >= chan_cfg->input_count) |
1508 | return -EINVAL; | |
1509 | ||
6ffefff5 MK |
1510 | if (common->started) { |
1511 | vpif_err("Streaming in progress\n"); | |
1512 | return -EBUSY; | |
1513 | } | |
1514 | ||
1515 | if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) || | |
1516 | (VPIF_CHANNEL1_VIDEO == ch->channel_id)) { | |
1517 | if (!fh->initialized) { | |
1518 | vpif_dbg(1, debug, "Channel Busy\n"); | |
1519 | return -EBUSY; | |
1520 | } | |
1521 | } | |
1522 | ||
ffb4877b | 1523 | ret = v4l2_prio_check(&ch->prio, fh->prio); |
6ffefff5 MK |
1524 | if (0 != ret) |
1525 | return ret; | |
1526 | ||
1527 | fh->initialized = 1; | |
178cce12 | 1528 | return vpif_set_input(config, ch, index); |
6ffefff5 MK |
1529 | } |
1530 | ||
1531 | /** | |
1532 | * vpif_enum_fmt_vid_cap() - ENUM_FMT handler | |
1533 | * @file: file ptr | |
1534 | * @priv: file handle | |
1535 | * @index: input index | |
1536 | */ | |
1537 | static int vpif_enum_fmt_vid_cap(struct file *file, void *priv, | |
1538 | struct v4l2_fmtdesc *fmt) | |
1539 | { | |
1540 | struct vpif_fh *fh = priv; | |
1541 | struct channel_obj *ch = fh->channel; | |
1542 | ||
1543 | if (fmt->index != 0) { | |
1544 | vpif_dbg(1, debug, "Invalid format index\n"); | |
1545 | return -EINVAL; | |
1546 | } | |
1547 | ||
1548 | /* Fill in the information about format */ | |
1549 | if (ch->vpifparams.iface.if_type == VPIF_IF_RAW_BAYER) { | |
1550 | fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1551 | strcpy(fmt->description, "Raw Mode -Bayer Pattern GrRBGb"); | |
1552 | fmt->pixelformat = V4L2_PIX_FMT_SBGGR8; | |
1553 | } else { | |
1554 | fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1555 | strcpy(fmt->description, "YCbCr4:2:2 YC Planar"); | |
1556 | fmt->pixelformat = V4L2_PIX_FMT_YUV422P; | |
1557 | } | |
1558 | return 0; | |
1559 | } | |
1560 | ||
1561 | /** | |
1562 | * vpif_try_fmt_vid_cap() - TRY_FMT handler | |
1563 | * @file: file ptr | |
1564 | * @priv: file handle | |
1565 | * @fmt: ptr to v4l2 format structure | |
1566 | */ | |
1567 | static int vpif_try_fmt_vid_cap(struct file *file, void *priv, | |
1568 | struct v4l2_format *fmt) | |
1569 | { | |
1570 | struct vpif_fh *fh = priv; | |
1571 | struct channel_obj *ch = fh->channel; | |
1572 | struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; | |
1573 | ||
1574 | return vpif_check_format(ch, pixfmt, 1); | |
1575 | } | |
1576 | ||
1577 | ||
1578 | /** | |
1579 | * vpif_g_fmt_vid_cap() - Set INPUT handler | |
1580 | * @file: file ptr | |
1581 | * @priv: file handle | |
1582 | * @fmt: ptr to v4l2 format structure | |
1583 | */ | |
1584 | static int vpif_g_fmt_vid_cap(struct file *file, void *priv, | |
1585 | struct v4l2_format *fmt) | |
1586 | { | |
1587 | struct vpif_fh *fh = priv; | |
1588 | struct channel_obj *ch = fh->channel; | |
1589 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1590 | ||
1591 | /* Check the validity of the buffer type */ | |
1592 | if (common->fmt.type != fmt->type) | |
1593 | return -EINVAL; | |
1594 | ||
1595 | /* Fill in the information about format */ | |
6ffefff5 | 1596 | *fmt = common->fmt; |
6ffefff5 MK |
1597 | return 0; |
1598 | } | |
1599 | ||
1600 | /** | |
1601 | * vpif_s_fmt_vid_cap() - Set FMT handler | |
1602 | * @file: file ptr | |
1603 | * @priv: file handle | |
1604 | * @fmt: ptr to v4l2 format structure | |
1605 | */ | |
1606 | static int vpif_s_fmt_vid_cap(struct file *file, void *priv, | |
1607 | struct v4l2_format *fmt) | |
1608 | { | |
1609 | struct vpif_fh *fh = priv; | |
1610 | struct channel_obj *ch = fh->channel; | |
1611 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1612 | struct v4l2_pix_format *pixfmt; | |
1613 | int ret = 0; | |
1614 | ||
2c0ddd17 | 1615 | vpif_dbg(2, debug, "%s\n", __func__); |
6ffefff5 MK |
1616 | |
1617 | /* If streaming is started, return error */ | |
1618 | if (common->started) { | |
1619 | vpif_dbg(1, debug, "Streaming is started\n"); | |
1620 | return -EBUSY; | |
1621 | } | |
1622 | ||
1623 | if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) || | |
1624 | (VPIF_CHANNEL1_VIDEO == ch->channel_id)) { | |
1625 | if (!fh->initialized) { | |
1626 | vpif_dbg(1, debug, "Channel Busy\n"); | |
1627 | return -EBUSY; | |
1628 | } | |
1629 | } | |
1630 | ||
ffb4877b | 1631 | ret = v4l2_prio_check(&ch->prio, fh->prio); |
6ffefff5 MK |
1632 | if (0 != ret) |
1633 | return ret; | |
1634 | ||
1635 | fh->initialized = 1; | |
1636 | ||
1637 | pixfmt = &fmt->fmt.pix; | |
1638 | /* Check for valid field format */ | |
1639 | ret = vpif_check_format(ch, pixfmt, 0); | |
1640 | ||
1641 | if (ret) | |
1642 | return ret; | |
1643 | /* store the format in the channel object */ | |
6ffefff5 | 1644 | common->fmt = *fmt; |
6ffefff5 MK |
1645 | return 0; |
1646 | } | |
1647 | ||
1648 | /** | |
1649 | * vpif_querycap() - QUERYCAP handler | |
1650 | * @file: file ptr | |
1651 | * @priv: file handle | |
1652 | * @cap: ptr to v4l2_capability structure | |
1653 | */ | |
1654 | static int vpif_querycap(struct file *file, void *priv, | |
1655 | struct v4l2_capability *cap) | |
1656 | { | |
1657 | struct vpif_capture_config *config = vpif_dev->platform_data; | |
1658 | ||
626d533f LP |
1659 | cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; |
1660 | cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; | |
1661 | snprintf(cap->driver, sizeof(cap->driver), "%s", dev_name(vpif_dev)); | |
1662 | snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s", | |
1663 | dev_name(vpif_dev)); | |
6ffefff5 MK |
1664 | strlcpy(cap->card, config->card_name, sizeof(cap->card)); |
1665 | ||
1666 | return 0; | |
1667 | } | |
1668 | ||
1669 | /** | |
1670 | * vpif_g_priority() - get priority handler | |
1671 | * @file: file ptr | |
1672 | * @priv: file handle | |
1673 | * @prio: ptr to v4l2_priority structure | |
1674 | */ | |
1675 | static int vpif_g_priority(struct file *file, void *priv, | |
1676 | enum v4l2_priority *prio) | |
1677 | { | |
1678 | struct vpif_fh *fh = priv; | |
1679 | struct channel_obj *ch = fh->channel; | |
1680 | ||
1681 | *prio = v4l2_prio_max(&ch->prio); | |
1682 | ||
1683 | return 0; | |
1684 | } | |
1685 | ||
1686 | /** | |
1687 | * vpif_s_priority() - set priority handler | |
1688 | * @file: file ptr | |
1689 | * @priv: file handle | |
1690 | * @prio: ptr to v4l2_priority structure | |
1691 | */ | |
1692 | static int vpif_s_priority(struct file *file, void *priv, enum v4l2_priority p) | |
1693 | { | |
1694 | struct vpif_fh *fh = priv; | |
1695 | struct channel_obj *ch = fh->channel; | |
1696 | ||
1697 | return v4l2_prio_change(&ch->prio, &fh->prio, p); | |
1698 | } | |
1699 | ||
1700 | /** | |
1701 | * vpif_cropcap() - cropcap handler | |
1702 | * @file: file ptr | |
1703 | * @priv: file handle | |
1704 | * @crop: ptr to v4l2_cropcap structure | |
1705 | */ | |
1706 | static int vpif_cropcap(struct file *file, void *priv, | |
1707 | struct v4l2_cropcap *crop) | |
1708 | { | |
1709 | struct vpif_fh *fh = priv; | |
1710 | struct channel_obj *ch = fh->channel; | |
1711 | struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; | |
1712 | ||
1713 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != crop->type) | |
1714 | return -EINVAL; | |
1715 | ||
1716 | crop->bounds.left = 0; | |
1717 | crop->bounds.top = 0; | |
1718 | crop->bounds.height = common->height; | |
1719 | crop->bounds.width = common->width; | |
1720 | crop->defrect = crop->bounds; | |
1721 | return 0; | |
1722 | } | |
1723 | ||
40c8bcea | 1724 | /** |
0598c17b | 1725 | * vpif_enum_dv_timings() - ENUM_DV_TIMINGS handler |
40c8bcea MR |
1726 | * @file: file ptr |
1727 | * @priv: file handle | |
0598c17b | 1728 | * @timings: input timings |
40c8bcea | 1729 | */ |
0598c17b HV |
1730 | static int |
1731 | vpif_enum_dv_timings(struct file *file, void *priv, | |
1732 | struct v4l2_enum_dv_timings *timings) | |
40c8bcea MR |
1733 | { |
1734 | struct vpif_fh *fh = priv; | |
1735 | struct channel_obj *ch = fh->channel; | |
178cce12 | 1736 | int ret; |
40c8bcea | 1737 | |
178cce12 | 1738 | ret = v4l2_subdev_call(ch->sd, video, enum_dv_timings, timings); |
e070f1b4 | 1739 | if (ret == -ENOIOCTLCMD || ret == -ENODEV) |
178cce12 HV |
1740 | return -EINVAL; |
1741 | return ret; | |
40c8bcea MR |
1742 | } |
1743 | ||
1744 | /** | |
0598c17b | 1745 | * vpif_query_dv_timings() - QUERY_DV_TIMINGS handler |
40c8bcea MR |
1746 | * @file: file ptr |
1747 | * @priv: file handle | |
0598c17b | 1748 | * @timings: input timings |
40c8bcea | 1749 | */ |
0598c17b HV |
1750 | static int |
1751 | vpif_query_dv_timings(struct file *file, void *priv, | |
1752 | struct v4l2_dv_timings *timings) | |
40c8bcea MR |
1753 | { |
1754 | struct vpif_fh *fh = priv; | |
1755 | struct channel_obj *ch = fh->channel; | |
178cce12 | 1756 | int ret; |
40c8bcea | 1757 | |
178cce12 | 1758 | ret = v4l2_subdev_call(ch->sd, video, query_dv_timings, timings); |
e070f1b4 | 1759 | if (ret == -ENOIOCTLCMD || ret == -ENODEV) |
178cce12 HV |
1760 | return -ENODATA; |
1761 | return ret; | |
40c8bcea MR |
1762 | } |
1763 | ||
c027e165 MR |
1764 | /** |
1765 | * vpif_s_dv_timings() - S_DV_TIMINGS handler | |
1766 | * @file: file ptr | |
1767 | * @priv: file handle | |
1768 | * @timings: digital video timings | |
1769 | */ | |
1770 | static int vpif_s_dv_timings(struct file *file, void *priv, | |
1771 | struct v4l2_dv_timings *timings) | |
1772 | { | |
1773 | struct vpif_fh *fh = priv; | |
1774 | struct channel_obj *ch = fh->channel; | |
1775 | struct vpif_params *vpifparams = &ch->vpifparams; | |
1776 | struct vpif_channel_config_params *std_info = &vpifparams->std_info; | |
1777 | struct video_obj *vid_ch = &ch->video; | |
0598c17b | 1778 | struct v4l2_bt_timings *bt = &vid_ch->dv_timings.bt; |
c027e165 MR |
1779 | int ret; |
1780 | ||
1781 | if (timings->type != V4L2_DV_BT_656_1120) { | |
1782 | vpif_dbg(2, debug, "Timing type not defined\n"); | |
1783 | return -EINVAL; | |
1784 | } | |
1785 | ||
1786 | /* Configure subdevice timings, if any */ | |
178cce12 HV |
1787 | ret = v4l2_subdev_call(ch->sd, video, s_dv_timings, timings); |
1788 | if (ret == -ENOIOCTLCMD || ret == -ENODEV) | |
1789 | ret = 0; | |
c027e165 MR |
1790 | if (ret < 0) { |
1791 | vpif_dbg(2, debug, "Error setting custom DV timings\n"); | |
1792 | return ret; | |
1793 | } | |
1794 | ||
1795 | if (!(timings->bt.width && timings->bt.height && | |
1796 | (timings->bt.hbackporch || | |
1797 | timings->bt.hfrontporch || | |
1798 | timings->bt.hsync) && | |
1799 | timings->bt.vfrontporch && | |
1800 | (timings->bt.vbackporch || | |
1801 | timings->bt.vsync))) { | |
1802 | vpif_dbg(2, debug, "Timings for width, height, " | |
1803 | "horizontal back porch, horizontal sync, " | |
1804 | "horizontal front porch, vertical back porch, " | |
1805 | "vertical sync and vertical back porch " | |
1806 | "must be defined\n"); | |
1807 | return -EINVAL; | |
1808 | } | |
1809 | ||
0598c17b | 1810 | vid_ch->dv_timings = *timings; |
c027e165 MR |
1811 | |
1812 | /* Configure video port timings */ | |
1813 | ||
1814 | std_info->eav2sav = bt->hbackporch + bt->hfrontporch + | |
1815 | bt->hsync - 8; | |
1816 | std_info->sav2eav = bt->width; | |
1817 | ||
1818 | std_info->l1 = 1; | |
1819 | std_info->l3 = bt->vsync + bt->vbackporch + 1; | |
1820 | ||
1821 | if (bt->interlaced) { | |
1822 | if (bt->il_vbackporch || bt->il_vfrontporch || bt->il_vsync) { | |
1823 | std_info->vsize = bt->height * 2 + | |
1824 | bt->vfrontporch + bt->vsync + bt->vbackporch + | |
1825 | bt->il_vfrontporch + bt->il_vsync + | |
1826 | bt->il_vbackporch; | |
1827 | std_info->l5 = std_info->vsize/2 - | |
1828 | (bt->vfrontporch - 1); | |
1829 | std_info->l7 = std_info->vsize/2 + 1; | |
1830 | std_info->l9 = std_info->l7 + bt->il_vsync + | |
1831 | bt->il_vbackporch + 1; | |
1832 | std_info->l11 = std_info->vsize - | |
1833 | (bt->il_vfrontporch - 1); | |
1834 | } else { | |
1835 | vpif_dbg(2, debug, "Required timing values for " | |
1836 | "interlaced BT format missing\n"); | |
1837 | return -EINVAL; | |
1838 | } | |
1839 | } else { | |
1840 | std_info->vsize = bt->height + bt->vfrontporch + | |
1841 | bt->vsync + bt->vbackporch; | |
1842 | std_info->l5 = std_info->vsize - (bt->vfrontporch - 1); | |
1843 | } | |
1844 | strncpy(std_info->name, "Custom timings BT656/1120", VPIF_MAX_NAME); | |
1845 | std_info->width = bt->width; | |
1846 | std_info->height = bt->height; | |
1847 | std_info->frm_fmt = bt->interlaced ? 0 : 1; | |
1848 | std_info->ycmux_mode = 0; | |
1849 | std_info->capture_format = 0; | |
1850 | std_info->vbi_supported = 0; | |
1851 | std_info->hd_sd = 1; | |
1852 | std_info->stdid = 0; | |
c027e165 MR |
1853 | |
1854 | vid_ch->stdid = 0; | |
c027e165 MR |
1855 | return 0; |
1856 | } | |
1857 | ||
1858 | /** | |
1859 | * vpif_g_dv_timings() - G_DV_TIMINGS handler | |
1860 | * @file: file ptr | |
1861 | * @priv: file handle | |
1862 | * @timings: digital video timings | |
1863 | */ | |
1864 | static int vpif_g_dv_timings(struct file *file, void *priv, | |
1865 | struct v4l2_dv_timings *timings) | |
1866 | { | |
1867 | struct vpif_fh *fh = priv; | |
1868 | struct channel_obj *ch = fh->channel; | |
1869 | struct video_obj *vid_ch = &ch->video; | |
c027e165 | 1870 | |
0598c17b | 1871 | *timings = vid_ch->dv_timings; |
c027e165 MR |
1872 | |
1873 | return 0; | |
1874 | } | |
1875 | ||
7036d6a7 MR |
1876 | /* |
1877 | * vpif_g_chip_ident() - Identify the chip | |
1878 | * @file: file ptr | |
1879 | * @priv: file handle | |
1880 | * @chip: chip identity | |
1881 | * | |
1882 | * Returns zero or -EINVAL if read operations fails. | |
1883 | */ | |
1884 | static int vpif_g_chip_ident(struct file *file, void *priv, | |
1885 | struct v4l2_dbg_chip_ident *chip) | |
1886 | { | |
1887 | chip->ident = V4L2_IDENT_NONE; | |
1888 | chip->revision = 0; | |
1889 | if (chip->match.type != V4L2_CHIP_MATCH_I2C_DRIVER && | |
1890 | chip->match.type != V4L2_CHIP_MATCH_I2C_ADDR) { | |
1891 | vpif_dbg(2, debug, "match_type is invalid.\n"); | |
1892 | return -EINVAL; | |
1893 | } | |
1894 | ||
1895 | return v4l2_device_call_until_err(&vpif_obj.v4l2_dev, 0, core, | |
1896 | g_chip_ident, chip); | |
1897 | } | |
1898 | ||
1899 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
1900 | /* | |
1901 | * vpif_dbg_g_register() - Read register | |
1902 | * @file: file ptr | |
1903 | * @priv: file handle | |
1904 | * @reg: register to be read | |
1905 | * | |
1906 | * Debugging only | |
1907 | * Returns zero or -EINVAL if read operations fails. | |
1908 | */ | |
1909 | static int vpif_dbg_g_register(struct file *file, void *priv, | |
1910 | struct v4l2_dbg_register *reg){ | |
1911 | struct vpif_fh *fh = priv; | |
1912 | struct channel_obj *ch = fh->channel; | |
1913 | ||
178cce12 | 1914 | return v4l2_subdev_call(ch->sd, core, g_register, reg); |
7036d6a7 MR |
1915 | } |
1916 | ||
1917 | /* | |
1918 | * vpif_dbg_s_register() - Write to register | |
1919 | * @file: file ptr | |
1920 | * @priv: file handle | |
1921 | * @reg: register to be modified | |
1922 | * | |
1923 | * Debugging only | |
1924 | * Returns zero or -EINVAL if write operations fails. | |
1925 | */ | |
1926 | static int vpif_dbg_s_register(struct file *file, void *priv, | |
977ba3b1 HV |
1927 | const struct v4l2_dbg_register *reg) |
1928 | { | |
7036d6a7 MR |
1929 | struct vpif_fh *fh = priv; |
1930 | struct channel_obj *ch = fh->channel; | |
1931 | ||
178cce12 | 1932 | return v4l2_subdev_call(ch->sd, core, s_register, reg); |
7036d6a7 MR |
1933 | } |
1934 | #endif | |
1935 | ||
1936 | /* | |
1937 | * vpif_log_status() - Status information | |
1938 | * @file: file ptr | |
1939 | * @priv: file handle | |
1940 | * | |
1941 | * Returns zero. | |
1942 | */ | |
1943 | static int vpif_log_status(struct file *filep, void *priv) | |
1944 | { | |
1945 | /* status for sub devices */ | |
1946 | v4l2_device_call_all(&vpif_obj.v4l2_dev, 0, core, log_status); | |
1947 | ||
1948 | return 0; | |
1949 | } | |
1950 | ||
6ffefff5 MK |
1951 | /* vpif capture ioctl operations */ |
1952 | static const struct v4l2_ioctl_ops vpif_ioctl_ops = { | |
1953 | .vidioc_querycap = vpif_querycap, | |
1954 | .vidioc_g_priority = vpif_g_priority, | |
1955 | .vidioc_s_priority = vpif_s_priority, | |
1956 | .vidioc_enum_fmt_vid_cap = vpif_enum_fmt_vid_cap, | |
1957 | .vidioc_g_fmt_vid_cap = vpif_g_fmt_vid_cap, | |
1958 | .vidioc_s_fmt_vid_cap = vpif_s_fmt_vid_cap, | |
1959 | .vidioc_try_fmt_vid_cap = vpif_try_fmt_vid_cap, | |
1960 | .vidioc_enum_input = vpif_enum_input, | |
1961 | .vidioc_s_input = vpif_s_input, | |
1962 | .vidioc_g_input = vpif_g_input, | |
1963 | .vidioc_reqbufs = vpif_reqbufs, | |
1964 | .vidioc_querybuf = vpif_querybuf, | |
1965 | .vidioc_querystd = vpif_querystd, | |
1966 | .vidioc_s_std = vpif_s_std, | |
1967 | .vidioc_g_std = vpif_g_std, | |
1968 | .vidioc_qbuf = vpif_qbuf, | |
1969 | .vidioc_dqbuf = vpif_dqbuf, | |
1970 | .vidioc_streamon = vpif_streamon, | |
1971 | .vidioc_streamoff = vpif_streamoff, | |
1972 | .vidioc_cropcap = vpif_cropcap, | |
0598c17b HV |
1973 | .vidioc_enum_dv_timings = vpif_enum_dv_timings, |
1974 | .vidioc_query_dv_timings = vpif_query_dv_timings, | |
c027e165 MR |
1975 | .vidioc_s_dv_timings = vpif_s_dv_timings, |
1976 | .vidioc_g_dv_timings = vpif_g_dv_timings, | |
7036d6a7 MR |
1977 | .vidioc_g_chip_ident = vpif_g_chip_ident, |
1978 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
1979 | .vidioc_g_register = vpif_dbg_g_register, | |
1980 | .vidioc_s_register = vpif_dbg_s_register, | |
1981 | #endif | |
1982 | .vidioc_log_status = vpif_log_status, | |
6ffefff5 MK |
1983 | }; |
1984 | ||
1985 | /* vpif file operations */ | |
1986 | static struct v4l2_file_operations vpif_fops = { | |
1987 | .owner = THIS_MODULE, | |
1988 | .open = vpif_open, | |
1989 | .release = vpif_release, | |
46656afa | 1990 | .unlocked_ioctl = video_ioctl2, |
6ffefff5 MK |
1991 | .mmap = vpif_mmap, |
1992 | .poll = vpif_poll | |
1993 | }; | |
1994 | ||
1995 | /* vpif video template */ | |
1996 | static struct video_device vpif_video_template = { | |
1997 | .name = "vpif", | |
1998 | .fops = &vpif_fops, | |
1999 | .minor = -1, | |
2000 | .ioctl_ops = &vpif_ioctl_ops, | |
2001 | }; | |
2002 | ||
2003 | /** | |
2004 | * initialize_vpif() - Initialize vpif data structures | |
2005 | * | |
2006 | * Allocate memory for data structures and initialize them | |
2007 | */ | |
2008 | static int initialize_vpif(void) | |
2009 | { | |
2010 | int err = 0, i, j; | |
2011 | int free_channel_objects_index; | |
2012 | ||
2013 | /* Default number of buffers should be 3 */ | |
2014 | if ((ch0_numbuffers > 0) && | |
2015 | (ch0_numbuffers < config_params.min_numbuffers)) | |
2016 | ch0_numbuffers = config_params.min_numbuffers; | |
2017 | if ((ch1_numbuffers > 0) && | |
2018 | (ch1_numbuffers < config_params.min_numbuffers)) | |
2019 | ch1_numbuffers = config_params.min_numbuffers; | |
2020 | ||
2021 | /* Set buffer size to min buffers size if it is invalid */ | |
2022 | if (ch0_bufsize < config_params.min_bufsize[VPIF_CHANNEL0_VIDEO]) | |
2023 | ch0_bufsize = | |
2024 | config_params.min_bufsize[VPIF_CHANNEL0_VIDEO]; | |
2025 | if (ch1_bufsize < config_params.min_bufsize[VPIF_CHANNEL1_VIDEO]) | |
2026 | ch1_bufsize = | |
2027 | config_params.min_bufsize[VPIF_CHANNEL1_VIDEO]; | |
2028 | ||
2029 | config_params.numbuffers[VPIF_CHANNEL0_VIDEO] = ch0_numbuffers; | |
2030 | config_params.numbuffers[VPIF_CHANNEL1_VIDEO] = ch1_numbuffers; | |
2031 | if (ch0_numbuffers) { | |
2032 | config_params.channel_bufsize[VPIF_CHANNEL0_VIDEO] | |
2033 | = ch0_bufsize; | |
2034 | } | |
2035 | if (ch1_numbuffers) { | |
2036 | config_params.channel_bufsize[VPIF_CHANNEL1_VIDEO] | |
2037 | = ch1_bufsize; | |
2038 | } | |
2039 | ||
2040 | /* Allocate memory for six channel objects */ | |
2041 | for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { | |
2042 | vpif_obj.dev[i] = | |
2043 | kzalloc(sizeof(*vpif_obj.dev[i]), GFP_KERNEL); | |
2044 | /* If memory allocation fails, return error */ | |
2045 | if (!vpif_obj.dev[i]) { | |
2046 | free_channel_objects_index = i; | |
2047 | err = -ENOMEM; | |
2048 | goto vpif_init_free_channel_objects; | |
2049 | } | |
2050 | } | |
2051 | return 0; | |
2052 | ||
2053 | vpif_init_free_channel_objects: | |
2054 | for (j = 0; j < free_channel_objects_index; j++) | |
2055 | kfree(vpif_obj.dev[j]); | |
2056 | return err; | |
2057 | } | |
2058 | ||
2059 | /** | |
2060 | * vpif_probe : This function probes the vpif capture driver | |
2061 | * @pdev: platform device pointer | |
2062 | * | |
2063 | * This creates device entries by register itself to the V4L2 driver and | |
2064 | * initializes fields of each channel objects | |
2065 | */ | |
2066 | static __init int vpif_probe(struct platform_device *pdev) | |
2067 | { | |
2068 | struct vpif_subdev_info *subdevdata; | |
2069 | struct vpif_capture_config *config; | |
5be452c3 HV |
2070 | int i, j, k, err; |
2071 | int res_idx = 0; | |
6ffefff5 MK |
2072 | struct i2c_adapter *i2c_adap; |
2073 | struct channel_obj *ch; | |
2074 | struct common_obj *common; | |
2075 | struct video_device *vfd; | |
2076 | struct resource *res; | |
2077 | int subdev_count; | |
764af39a | 2078 | size_t size; |
6ffefff5 MK |
2079 | |
2080 | vpif_dev = &pdev->dev; | |
2081 | ||
2082 | err = initialize_vpif(); | |
2083 | if (err) { | |
2084 | v4l2_err(vpif_dev->driver, "Error initializing vpif\n"); | |
2085 | return err; | |
2086 | } | |
2087 | ||
d2f7a1a2 HV |
2088 | err = v4l2_device_register(vpif_dev, &vpif_obj.v4l2_dev); |
2089 | if (err) { | |
2090 | v4l2_err(vpif_dev->driver, "Error registering v4l2 device\n"); | |
2091 | return err; | |
2092 | } | |
2093 | ||
5be452c3 | 2094 | while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, res_idx))) { |
6ffefff5 | 2095 | for (i = res->start; i <= res->end; i++) { |
0316b89a | 2096 | if (request_irq(i, vpif_channel_isr, IRQF_SHARED, |
5be452c3 HV |
2097 | "VPIF_Capture", (void *) |
2098 | (&vpif_obj.dev[res_idx]->channel_id))) { | |
6ffefff5 | 2099 | err = -EBUSY; |
5be452c3 HV |
2100 | for (j = 0; j < i; j++) |
2101 | free_irq(j, (void *) | |
2102 | (&vpif_obj.dev[res_idx]->channel_id)); | |
6ffefff5 MK |
2103 | goto vpif_int_err; |
2104 | } | |
2105 | } | |
5be452c3 | 2106 | res_idx++; |
6ffefff5 MK |
2107 | } |
2108 | ||
2109 | for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { | |
2110 | /* Get the pointer to the channel object */ | |
2111 | ch = vpif_obj.dev[i]; | |
2112 | /* Allocate memory for video device */ | |
2113 | vfd = video_device_alloc(); | |
2114 | if (NULL == vfd) { | |
2115 | for (j = 0; j < i; j++) { | |
2116 | ch = vpif_obj.dev[j]; | |
2117 | video_device_release(ch->video_dev); | |
2118 | } | |
2119 | err = -ENOMEM; | |
5be452c3 | 2120 | goto vpif_int_err; |
6ffefff5 MK |
2121 | } |
2122 | ||
2123 | /* Initialize field of video device */ | |
2124 | *vfd = vpif_video_template; | |
2125 | vfd->v4l2_dev = &vpif_obj.v4l2_dev; | |
2126 | vfd->release = video_device_release; | |
2127 | snprintf(vfd->name, sizeof(vfd->name), | |
0a63172a | 2128 | "VPIF_Capture_DRIVER_V%s", |
64dc3c1a | 2129 | VPIF_CAPTURE_VERSION); |
6ffefff5 MK |
2130 | /* Set video_dev to the video device */ |
2131 | ch->video_dev = vfd; | |
2132 | } | |
2133 | ||
764af39a MH |
2134 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
2135 | if (res) { | |
2136 | size = resource_size(res); | |
2137 | /* The resources are divided into two equal memory and when we | |
2138 | * have HD output we can add them together | |
2139 | */ | |
2140 | for (j = 0; j < VPIF_CAPTURE_MAX_DEVICES; j++) { | |
2141 | ch = vpif_obj.dev[j]; | |
2142 | ch->channel_id = j; | |
2143 | /* only enabled if second resource exists */ | |
2144 | config_params.video_limit[ch->channel_id] = 0; | |
2145 | if (size) | |
2146 | config_params.video_limit[ch->channel_id] = | |
2147 | size/2; | |
2148 | } | |
2149 | } | |
2150 | ||
6ffefff5 MK |
2151 | i2c_adap = i2c_get_adapter(1); |
2152 | config = pdev->dev.platform_data; | |
2153 | ||
2154 | subdev_count = config->subdev_count; | |
1f8766b4 | 2155 | vpif_obj.sd = kzalloc(sizeof(struct v4l2_subdev *) * subdev_count, |
6ffefff5 MK |
2156 | GFP_KERNEL); |
2157 | if (vpif_obj.sd == NULL) { | |
2158 | vpif_err("unable to allocate memory for subdevice pointers\n"); | |
2159 | err = -ENOMEM; | |
5be452c3 | 2160 | goto vpif_sd_error; |
6ffefff5 MK |
2161 | } |
2162 | ||
6ffefff5 MK |
2163 | for (i = 0; i < subdev_count; i++) { |
2164 | subdevdata = &config->subdev_info[i]; | |
2165 | vpif_obj.sd[i] = | |
2166 | v4l2_i2c_new_subdev_board(&vpif_obj.v4l2_dev, | |
2167 | i2c_adap, | |
6ffefff5 MK |
2168 | &subdevdata->board_info, |
2169 | NULL); | |
2170 | ||
2171 | if (!vpif_obj.sd[i]) { | |
2172 | vpif_err("Error registering v4l2 subdevice\n"); | |
2173 | goto probe_subdev_out; | |
2174 | } | |
2175 | v4l2_info(&vpif_obj.v4l2_dev, "registered sub device %s\n", | |
2176 | subdevdata->name); | |
6ffefff5 | 2177 | } |
6ffefff5 | 2178 | |
b65814e5 HV |
2179 | for (j = 0; j < VPIF_CAPTURE_MAX_DEVICES; j++) { |
2180 | ch = vpif_obj.dev[j]; | |
2181 | ch->channel_id = j; | |
2182 | common = &(ch->common[VPIF_VIDEO_INDEX]); | |
2183 | spin_lock_init(&common->irqlock); | |
2184 | mutex_init(&common->lock); | |
2185 | ch->video_dev->lock = &common->lock; | |
2186 | /* Initialize prio member of channel object */ | |
2187 | v4l2_prio_init(&ch->prio); | |
2188 | video_set_drvdata(ch->video_dev, ch); | |
2189 | ||
178cce12 HV |
2190 | /* select input 0 */ |
2191 | err = vpif_set_input(config, ch, 0); | |
2192 | if (err) | |
2193 | goto probe_out; | |
2194 | ||
b65814e5 HV |
2195 | err = video_register_device(ch->video_dev, |
2196 | VFL_TYPE_GRABBER, (j ? 1 : 0)); | |
2197 | if (err) | |
2198 | goto probe_out; | |
2199 | } | |
0a63172a | 2200 | v4l2_info(&vpif_obj.v4l2_dev, "VPIF capture driver initialized\n"); |
6ffefff5 MK |
2201 | return 0; |
2202 | ||
6ffefff5 | 2203 | probe_out: |
6ffefff5 MK |
2204 | for (k = 0; k < j; k++) { |
2205 | /* Get the pointer to the channel object */ | |
2206 | ch = vpif_obj.dev[k]; | |
2207 | /* Unregister video device */ | |
2208 | video_unregister_device(ch->video_dev); | |
2209 | } | |
b65814e5 HV |
2210 | probe_subdev_out: |
2211 | /* free sub devices memory */ | |
2212 | kfree(vpif_obj.sd); | |
6ffefff5 | 2213 | |
5be452c3 HV |
2214 | vpif_sd_error: |
2215 | for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { | |
2216 | ch = vpif_obj.dev[i]; | |
2217 | /* Note: does nothing if ch->video_dev == NULL */ | |
2218 | video_device_release(ch->video_dev); | |
6ffefff5 | 2219 | } |
5be452c3 | 2220 | vpif_int_err: |
d2f7a1a2 | 2221 | v4l2_device_unregister(&vpif_obj.v4l2_dev); |
5be452c3 HV |
2222 | for (i = 0; i < res_idx; i++) { |
2223 | res = platform_get_resource(pdev, IORESOURCE_IRQ, i); | |
2224 | for (j = res->start; j <= res->end; j++) | |
2225 | free_irq(j, (void *)(&vpif_obj.dev[i]->channel_id)); | |
2226 | } | |
6ffefff5 MK |
2227 | return err; |
2228 | } | |
2229 | ||
2230 | /** | |
2231 | * vpif_remove() - driver remove handler | |
2232 | * @device: ptr to platform device structure | |
2233 | * | |
2234 | * The vidoe device is unregistered | |
2235 | */ | |
2236 | static int vpif_remove(struct platform_device *device) | |
2237 | { | |
2238 | int i; | |
2239 | struct channel_obj *ch; | |
2240 | ||
2241 | v4l2_device_unregister(&vpif_obj.v4l2_dev); | |
2242 | ||
2243 | /* un-register device */ | |
2244 | for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { | |
2245 | /* Get the pointer to the channel object */ | |
2246 | ch = vpif_obj.dev[i]; | |
2247 | /* Unregister video device */ | |
2248 | video_unregister_device(ch->video_dev); | |
2249 | } | |
2250 | return 0; | |
2251 | } | |
2252 | ||
3d5946dc | 2253 | #ifdef CONFIG_PM |
6ffefff5 MK |
2254 | /** |
2255 | * vpif_suspend: vpif device suspend | |
6ffefff5 | 2256 | */ |
3d5946dc | 2257 | static int vpif_suspend(struct device *dev) |
6ffefff5 | 2258 | { |
3d5946dc MH |
2259 | |
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(0); | |
2273 | channel0_intr_enable(0); | |
2274 | } | |
2275 | if (ch->channel_id == VPIF_CHANNEL1_VIDEO || | |
2276 | common->started == 2) { | |
2277 | enable_channel1(0); | |
2278 | channel1_intr_enable(0); | |
2279 | } | |
2280 | } | |
2281 | mutex_unlock(&common->lock); | |
2282 | } | |
2283 | ||
2284 | return 0; | |
6ffefff5 MK |
2285 | } |
2286 | ||
3d5946dc | 2287 | /* |
6ffefff5 | 2288 | * vpif_resume: vpif device suspend |
6ffefff5 | 2289 | */ |
3d5946dc | 2290 | static int vpif_resume(struct device *dev) |
6ffefff5 | 2291 | { |
3d5946dc MH |
2292 | struct common_obj *common; |
2293 | struct channel_obj *ch; | |
2294 | int i; | |
2295 | ||
2296 | for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) { | |
2297 | /* Get the pointer to the channel object */ | |
2298 | ch = vpif_obj.dev[i]; | |
2299 | common = &ch->common[VPIF_VIDEO_INDEX]; | |
2300 | mutex_lock(&common->lock); | |
2301 | if (ch->usrs && common->io_usrs) { | |
2302 | /* Disable channel */ | |
2303 | if (ch->channel_id == VPIF_CHANNEL0_VIDEO) { | |
2304 | enable_channel0(1); | |
2305 | channel0_intr_enable(1); | |
2306 | } | |
2307 | if (ch->channel_id == VPIF_CHANNEL1_VIDEO || | |
2308 | common->started == 2) { | |
2309 | enable_channel1(1); | |
2310 | channel1_intr_enable(1); | |
2311 | } | |
2312 | } | |
2313 | mutex_unlock(&common->lock); | |
2314 | } | |
2315 | ||
2316 | return 0; | |
6ffefff5 MK |
2317 | } |
2318 | ||
47145210 | 2319 | static const struct dev_pm_ops vpif_dev_pm_ops = { |
6ffefff5 MK |
2320 | .suspend = vpif_suspend, |
2321 | .resume = vpif_resume, | |
2322 | }; | |
2323 | ||
3d5946dc MH |
2324 | #define vpif_pm_ops (&vpif_dev_pm_ops) |
2325 | #else | |
2326 | #define vpif_pm_ops NULL | |
2327 | #endif | |
2328 | ||
ffa1b391 | 2329 | static __refdata struct platform_driver vpif_driver = { |
6ffefff5 MK |
2330 | .driver = { |
2331 | .name = "vpif_capture", | |
2332 | .owner = THIS_MODULE, | |
3d5946dc | 2333 | .pm = vpif_pm_ops, |
6ffefff5 MK |
2334 | }, |
2335 | .probe = vpif_probe, | |
2336 | .remove = vpif_remove, | |
2337 | }; | |
2338 | ||
2339 | /** | |
2340 | * vpif_init: initialize the vpif driver | |
2341 | * | |
2342 | * This function registers device and driver to the kernel, requests irq | |
2343 | * handler and allocates memory | |
2344 | * for channel objects | |
2345 | */ | |
2346 | static __init int vpif_init(void) | |
2347 | { | |
2348 | return platform_driver_register(&vpif_driver); | |
2349 | } | |
2350 | ||
2351 | /** | |
2352 | * vpif_cleanup : This function clean up the vpif capture resources | |
2353 | * | |
2354 | * This will un-registers device and driver to the kernel, frees | |
2355 | * requested irq handler and de-allocates memory allocated for channel | |
2356 | * objects. | |
2357 | */ | |
2358 | static void vpif_cleanup(void) | |
2359 | { | |
2360 | struct platform_device *pdev; | |
2361 | struct resource *res; | |
2362 | int irq_num; | |
2363 | int i = 0; | |
2364 | ||
2365 | pdev = container_of(vpif_dev, struct platform_device, dev); | |
2366 | while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, i))) { | |
2367 | for (irq_num = res->start; irq_num <= res->end; irq_num++) | |
2368 | free_irq(irq_num, | |
2369 | (void *)(&vpif_obj.dev[i]->channel_id)); | |
2370 | i++; | |
2371 | } | |
2372 | ||
2373 | platform_driver_unregister(&vpif_driver); | |
2374 | ||
2375 | kfree(vpif_obj.sd); | |
2376 | for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) | |
2377 | kfree(vpif_obj.dev[i]); | |
2378 | } | |
2379 | ||
2380 | /* Function for module initialization and cleanup */ | |
2381 | module_init(vpif_init); | |
2382 | module_exit(vpif_cleanup); |