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38f993ad DA |
1 | /* |
2 | * s2255drv.c - a driver for the Sensoray 2255 USB video capture device | |
3 | * | |
4 | * Copyright (C) 2007-2008 by Sensoray Company Inc. | |
5 | * Dean Anderson | |
6 | * | |
7 | * Some video buffer code based on vivi driver: | |
8 | * | |
9 | * Sensoray 2255 device supports 4 simultaneous channels. | |
10 | * The channels are not "crossbar" inputs, they are physically | |
11 | * attached to separate video decoders. | |
12 | * | |
13 | * Because of USB2.0 bandwidth limitations. There is only a | |
14 | * certain amount of data which may be transferred at one time. | |
15 | * | |
16 | * Example maximum bandwidth utilization: | |
17 | * | |
18 | * -full size, color mode YUYV or YUV422P: 2 channels at once | |
19 | * | |
20 | * -full or half size Grey scale: all 4 channels at once | |
21 | * | |
22 | * -half size, color mode YUYV or YUV422P: all 4 channels at once | |
23 | * | |
24 | * -full size, color mode YUYV or YUV422P 1/2 frame rate: all 4 channels | |
25 | * at once. | |
26 | * (TODO: Incorporate videodev2 frame rate(FR) enumeration, | |
27 | * which is currently experimental.) | |
28 | * | |
29 | * This program is free software; you can redistribute it and/or modify | |
30 | * it under the terms of the GNU General Public License as published by | |
31 | * the Free Software Foundation; either version 2 of the License, or | |
32 | * (at your option) any later version. | |
33 | * | |
34 | * This program is distributed in the hope that it will be useful, | |
35 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
36 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
37 | * GNU General Public License for more details. | |
38 | * | |
39 | * You should have received a copy of the GNU General Public License | |
40 | * along with this program; if not, write to the Free Software | |
41 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
42 | */ | |
43 | ||
44 | #include <linux/module.h> | |
45 | #include <linux/firmware.h> | |
46 | #include <linux/kernel.h> | |
47 | #include <linux/mutex.h> | |
48 | #include <linux/videodev2.h> | |
49 | #include <linux/version.h> | |
feb75f07 | 50 | #include <linux/mm.h> |
38f993ad DA |
51 | #include <media/videobuf-vmalloc.h> |
52 | #include <media/v4l2-common.h> | |
35ea11ff | 53 | #include <media/v4l2-ioctl.h> |
38f993ad DA |
54 | #include <linux/vmalloc.h> |
55 | #include <linux/usb.h> | |
56 | ||
57 | #define FIRMWARE_FILE_NAME "f2255usb.bin" | |
58 | ||
59 | ||
60 | ||
61 | /* vendor request in */ | |
62 | #define S2255_VR_IN 0 | |
63 | /* vendor request out */ | |
64 | #define S2255_VR_OUT 1 | |
65 | /* firmware query */ | |
66 | #define S2255_VR_FW 0x30 | |
67 | /* USB endpoint number for configuring the device */ | |
68 | #define S2255_CONFIG_EP 2 | |
69 | /* maximum time for DSP to start responding after last FW word loaded(ms) */ | |
14d96260 | 70 | #define S2255_DSP_BOOTTIME 800 |
38f993ad | 71 | /* maximum time to wait for firmware to load (ms) */ |
3f8d6f73 | 72 | #define S2255_LOAD_TIMEOUT (5000 + S2255_DSP_BOOTTIME) |
38f993ad | 73 | #define S2255_DEF_BUFS 16 |
14d96260 | 74 | #define S2255_SETMODE_TIMEOUT 500 |
38f993ad | 75 | #define MAX_CHANNELS 4 |
14d96260 DA |
76 | #define S2255_MARKER_FRAME 0x2255DA4AL |
77 | #define S2255_MARKER_RESPONSE 0x2255ACACL | |
78 | #define S2255_USB_XFER_SIZE (16 * 1024) | |
38f993ad DA |
79 | #define MAX_CHANNELS 4 |
80 | #define MAX_PIPE_BUFFERS 1 | |
81 | #define SYS_FRAMES 4 | |
82 | /* maximum size is PAL full size plus room for the marker header(s) */ | |
14d96260 DA |
83 | #define SYS_FRAMES_MAXSIZE (720*288*2*2 + 4096) |
84 | #define DEF_USB_BLOCK S2255_USB_XFER_SIZE | |
38f993ad DA |
85 | #define LINE_SZ_4CIFS_NTSC 640 |
86 | #define LINE_SZ_2CIFS_NTSC 640 | |
87 | #define LINE_SZ_1CIFS_NTSC 320 | |
88 | #define LINE_SZ_4CIFS_PAL 704 | |
89 | #define LINE_SZ_2CIFS_PAL 704 | |
90 | #define LINE_SZ_1CIFS_PAL 352 | |
91 | #define NUM_LINES_4CIFS_NTSC 240 | |
92 | #define NUM_LINES_2CIFS_NTSC 240 | |
93 | #define NUM_LINES_1CIFS_NTSC 240 | |
94 | #define NUM_LINES_4CIFS_PAL 288 | |
95 | #define NUM_LINES_2CIFS_PAL 288 | |
96 | #define NUM_LINES_1CIFS_PAL 288 | |
97 | #define LINE_SZ_DEF 640 | |
98 | #define NUM_LINES_DEF 240 | |
99 | ||
100 | ||
101 | /* predefined settings */ | |
102 | #define FORMAT_NTSC 1 | |
103 | #define FORMAT_PAL 2 | |
104 | ||
105 | #define SCALE_4CIFS 1 /* 640x480(NTSC) or 704x576(PAL) */ | |
106 | #define SCALE_2CIFS 2 /* 640x240(NTSC) or 704x288(PAL) */ | |
107 | #define SCALE_1CIFS 3 /* 320x240(NTSC) or 352x288(PAL) */ | |
108 | ||
109 | #define COLOR_YUVPL 1 /* YUV planar */ | |
110 | #define COLOR_YUVPK 2 /* YUV packed */ | |
111 | #define COLOR_Y8 4 /* monochrome */ | |
14d96260 DA |
112 | #define COLOR_JPG 5 /* JPEG */ |
113 | #define MASK_COLOR 0xff | |
114 | #define MASK_JPG_QUALITY 0xff00 | |
38f993ad DA |
115 | |
116 | /* frame decimation. Not implemented by V4L yet(experimental in V4L) */ | |
117 | #define FDEC_1 1 /* capture every frame. default */ | |
118 | #define FDEC_2 2 /* capture every 2nd frame */ | |
119 | #define FDEC_3 3 /* capture every 3rd frame */ | |
120 | #define FDEC_5 5 /* capture every 5th frame */ | |
121 | ||
122 | /*------------------------------------------------------- | |
123 | * Default mode parameters. | |
124 | *-------------------------------------------------------*/ | |
125 | #define DEF_SCALE SCALE_4CIFS | |
126 | #define DEF_COLOR COLOR_YUVPL | |
127 | #define DEF_FDEC FDEC_1 | |
128 | #define DEF_BRIGHT 0 | |
129 | #define DEF_CONTRAST 0x5c | |
130 | #define DEF_SATURATION 0x80 | |
131 | #define DEF_HUE 0 | |
132 | ||
133 | /* usb config commands */ | |
134 | #define IN_DATA_TOKEN 0x2255c0de | |
135 | #define CMD_2255 0xc2255000 | |
136 | #define CMD_SET_MODE (CMD_2255 | 0x10) | |
137 | #define CMD_START (CMD_2255 | 0x20) | |
138 | #define CMD_STOP (CMD_2255 | 0x30) | |
139 | #define CMD_STATUS (CMD_2255 | 0x40) | |
140 | ||
141 | struct s2255_mode { | |
142 | u32 format; /* input video format (NTSC, PAL) */ | |
143 | u32 scale; /* output video scale */ | |
144 | u32 color; /* output video color format */ | |
145 | u32 fdec; /* frame decimation */ | |
146 | u32 bright; /* brightness */ | |
147 | u32 contrast; /* contrast */ | |
148 | u32 saturation; /* saturation */ | |
149 | u32 hue; /* hue (NTSC only)*/ | |
150 | u32 single; /* capture 1 frame at a time (!=0), continuously (==0)*/ | |
151 | u32 usb_block; /* block size. should be 4096 of DEF_USB_BLOCK */ | |
152 | u32 restart; /* if DSP requires restart */ | |
153 | }; | |
154 | ||
38f993ad | 155 | |
14d96260 DA |
156 | #define S2255_READ_IDLE 0 |
157 | #define S2255_READ_FRAME 1 | |
38f993ad | 158 | |
14d96260 | 159 | /* frame structure */ |
38f993ad DA |
160 | struct s2255_framei { |
161 | unsigned long size; | |
14d96260 | 162 | unsigned long ulState; /* ulState:S2255_READ_IDLE, S2255_READ_FRAME*/ |
38f993ad DA |
163 | void *lpvbits; /* image data */ |
164 | unsigned long cur_size; /* current data copied to it */ | |
165 | }; | |
166 | ||
167 | /* image buffer structure */ | |
168 | struct s2255_bufferi { | |
169 | unsigned long dwFrames; /* number of frames in buffer */ | |
170 | struct s2255_framei frame[SYS_FRAMES]; /* array of FRAME structures */ | |
171 | }; | |
172 | ||
173 | #define DEF_MODEI_NTSC_CONT {FORMAT_NTSC, DEF_SCALE, DEF_COLOR, \ | |
174 | DEF_FDEC, DEF_BRIGHT, DEF_CONTRAST, DEF_SATURATION, \ | |
3f8d6f73 | 175 | DEF_HUE, 0, DEF_USB_BLOCK, 0} |
38f993ad DA |
176 | |
177 | struct s2255_dmaqueue { | |
178 | struct list_head active; | |
179 | /* thread for acquisition */ | |
180 | struct task_struct *kthread; | |
181 | int frame; | |
182 | struct s2255_dev *dev; | |
183 | int channel; | |
184 | }; | |
185 | ||
186 | /* for firmware loading, fw_state */ | |
187 | #define S2255_FW_NOTLOADED 0 | |
188 | #define S2255_FW_LOADED_DSPWAIT 1 | |
189 | #define S2255_FW_SUCCESS 2 | |
190 | #define S2255_FW_FAILED 3 | |
f78d92c9 | 191 | #define S2255_FW_DISCONNECTING 4 |
38f993ad | 192 | |
14d96260 DA |
193 | #define S2255_FW_MARKER 0x22552f2f |
194 | /* 2255 read states */ | |
195 | #define S2255_READ_IDLE 0 | |
196 | #define S2255_READ_FRAME 1 | |
38f993ad DA |
197 | struct s2255_fw { |
198 | int fw_loaded; | |
199 | int fw_size; | |
200 | struct urb *fw_urb; | |
201 | atomic_t fw_state; | |
202 | void *pfw_data; | |
203 | wait_queue_head_t wait_fw; | |
38f993ad DA |
204 | const struct firmware *fw; |
205 | }; | |
206 | ||
207 | struct s2255_pipeinfo { | |
208 | u32 max_transfer_size; | |
209 | u32 cur_transfer_size; | |
210 | u8 *transfer_buffer; | |
211 | u32 transfer_flags;; | |
212 | u32 state; | |
213 | u32 prev_state; | |
214 | u32 urb_size; | |
215 | void *stream_urb; | |
216 | void *dev; /* back pointer to s2255_dev struct*/ | |
217 | u32 err_count; | |
218 | u32 buf_index; | |
219 | u32 idx; | |
220 | u32 priority_set; | |
221 | }; | |
222 | ||
223 | struct s2255_fmt; /*forward declaration */ | |
224 | ||
225 | struct s2255_dev { | |
226 | int frames; | |
227 | int users[MAX_CHANNELS]; | |
228 | struct mutex lock; | |
229 | struct mutex open_lock; | |
230 | int resources[MAX_CHANNELS]; | |
231 | struct usb_device *udev; | |
232 | struct usb_interface *interface; | |
233 | u8 read_endpoint; | |
234 | ||
235 | struct s2255_dmaqueue vidq[MAX_CHANNELS]; | |
236 | struct video_device *vdev[MAX_CHANNELS]; | |
237 | struct list_head s2255_devlist; | |
238 | struct timer_list timer; | |
239 | struct s2255_fw *fw_data; | |
240 | int board_num; | |
241 | int is_open; | |
242 | struct s2255_pipeinfo pipes[MAX_PIPE_BUFFERS]; | |
243 | struct s2255_bufferi buffer[MAX_CHANNELS]; | |
244 | struct s2255_mode mode[MAX_CHANNELS]; | |
245 | const struct s2255_fmt *cur_fmt[MAX_CHANNELS]; | |
246 | int cur_frame[MAX_CHANNELS]; | |
247 | int last_frame[MAX_CHANNELS]; | |
248 | u32 cc; /* current channel */ | |
249 | int b_acquire[MAX_CHANNELS]; | |
14d96260 | 250 | /* allocated image size */ |
38f993ad | 251 | unsigned long req_image_size[MAX_CHANNELS]; |
14d96260 DA |
252 | /* received packet size */ |
253 | unsigned long pkt_size[MAX_CHANNELS]; | |
38f993ad DA |
254 | int bad_payload[MAX_CHANNELS]; |
255 | unsigned long frame_count[MAX_CHANNELS]; | |
256 | int frame_ready; | |
14d96260 DA |
257 | /* if JPEG image */ |
258 | int jpg_size[MAX_CHANNELS]; | |
259 | /* if channel configured to default state */ | |
260 | int chn_configured[MAX_CHANNELS]; | |
261 | wait_queue_head_t wait_setmode[MAX_CHANNELS]; | |
262 | int setmode_ready[MAX_CHANNELS]; | |
263 | int chn_ready; | |
38f993ad DA |
264 | struct kref kref; |
265 | spinlock_t slock; | |
266 | }; | |
267 | #define to_s2255_dev(d) container_of(d, struct s2255_dev, kref) | |
268 | ||
269 | struct s2255_fmt { | |
270 | char *name; | |
271 | u32 fourcc; | |
272 | int depth; | |
273 | }; | |
274 | ||
275 | /* buffer for one video frame */ | |
276 | struct s2255_buffer { | |
277 | /* common v4l buffer stuff -- must be first */ | |
278 | struct videobuf_buffer vb; | |
279 | const struct s2255_fmt *fmt; | |
280 | }; | |
281 | ||
282 | struct s2255_fh { | |
283 | struct s2255_dev *dev; | |
38f993ad DA |
284 | const struct s2255_fmt *fmt; |
285 | unsigned int width; | |
286 | unsigned int height; | |
287 | struct videobuf_queue vb_vidq; | |
288 | enum v4l2_buf_type type; | |
289 | int channel; | |
290 | /* mode below is the desired mode. | |
291 | mode in s2255_dev is the current mode that was last set */ | |
292 | struct s2255_mode mode; | |
f78d92c9 | 293 | int resources[MAX_CHANNELS]; |
38f993ad DA |
294 | }; |
295 | ||
38f993ad DA |
296 | #define CUR_USB_FWVER 774 /* current cypress EEPROM firmware version */ |
297 | #define S2255_MAJOR_VERSION 1 | |
298 | #define S2255_MINOR_VERSION 13 | |
299 | #define S2255_RELEASE 0 | |
300 | #define S2255_VERSION KERNEL_VERSION(S2255_MAJOR_VERSION, \ | |
301 | S2255_MINOR_VERSION, \ | |
302 | S2255_RELEASE) | |
303 | ||
304 | /* vendor ids */ | |
305 | #define USB_S2255_VENDOR_ID 0x1943 | |
306 | #define USB_S2255_PRODUCT_ID 0x2255 | |
307 | #define S2255_NORMS (V4L2_STD_PAL | V4L2_STD_NTSC) | |
308 | /* frame prefix size (sent once every frame) */ | |
309 | #define PREFIX_SIZE 512 | |
310 | ||
311 | /* Channels on box are in reverse order */ | |
3f8d6f73 | 312 | static unsigned long G_chnmap[MAX_CHANNELS] = {3, 2, 1, 0}; |
38f993ad DA |
313 | |
314 | static LIST_HEAD(s2255_devlist); | |
315 | ||
316 | static int debug; | |
317 | static int *s2255_debug = &debug; | |
318 | ||
319 | static int s2255_start_readpipe(struct s2255_dev *dev); | |
320 | static void s2255_stop_readpipe(struct s2255_dev *dev); | |
321 | static int s2255_start_acquire(struct s2255_dev *dev, unsigned long chn); | |
322 | static int s2255_stop_acquire(struct s2255_dev *dev, unsigned long chn); | |
323 | static void s2255_fillbuff(struct s2255_dev *dev, struct s2255_buffer *buf, | |
14d96260 | 324 | int chn, int jpgsize); |
38f993ad DA |
325 | static int s2255_set_mode(struct s2255_dev *dev, unsigned long chn, |
326 | struct s2255_mode *mode); | |
327 | static int s2255_board_shutdown(struct s2255_dev *dev); | |
328 | static void s2255_exit_v4l(struct s2255_dev *dev); | |
14d96260 DA |
329 | static void s2255_fwload_start(struct s2255_dev *dev, int reset); |
330 | static void s2255_destroy(struct kref *kref); | |
331 | static long s2255_vendor_req(struct s2255_dev *dev, unsigned char req, | |
332 | u16 index, u16 value, void *buf, | |
333 | s32 buf_len, int bOut); | |
38f993ad DA |
334 | |
335 | #define dprintk(level, fmt, arg...) \ | |
336 | do { \ | |
337 | if (*s2255_debug >= (level)) { \ | |
338 | printk(KERN_DEBUG "s2255: " fmt, ##arg); \ | |
339 | } \ | |
340 | } while (0) | |
341 | ||
342 | ||
343 | static struct usb_driver s2255_driver; | |
344 | ||
345 | ||
346 | /* Declare static vars that will be used as parameters */ | |
347 | static unsigned int vid_limit = 16; /* Video memory limit, in Mb */ | |
348 | ||
349 | /* start video number */ | |
350 | static int video_nr = -1; /* /dev/videoN, -1 for autodetect */ | |
351 | ||
3f8d6f73 | 352 | module_param(debug, int, 0644); |
38f993ad | 353 | MODULE_PARM_DESC(debug, "Debug level(0-100) default 0"); |
3f8d6f73 | 354 | module_param(vid_limit, int, 0644); |
38f993ad | 355 | MODULE_PARM_DESC(vid_limit, "video memory limit(Mb)"); |
3f8d6f73 | 356 | module_param(video_nr, int, 0644); |
38f993ad DA |
357 | MODULE_PARM_DESC(video_nr, "start video minor(-1 default autodetect)"); |
358 | ||
359 | /* USB device table */ | |
360 | static struct usb_device_id s2255_table[] = { | |
361 | {USB_DEVICE(USB_S2255_VENDOR_ID, USB_S2255_PRODUCT_ID)}, | |
362 | { } /* Terminating entry */ | |
363 | }; | |
364 | MODULE_DEVICE_TABLE(usb, s2255_table); | |
365 | ||
366 | ||
367 | #define BUFFER_TIMEOUT msecs_to_jiffies(400) | |
368 | ||
369 | /* supported controls */ | |
370 | static struct v4l2_queryctrl s2255_qctrl[] = { | |
371 | { | |
372 | .id = V4L2_CID_BRIGHTNESS, | |
373 | .type = V4L2_CTRL_TYPE_INTEGER, | |
374 | .name = "Brightness", | |
375 | .minimum = -127, | |
376 | .maximum = 128, | |
377 | .step = 1, | |
378 | .default_value = 0, | |
379 | .flags = 0, | |
380 | }, { | |
381 | .id = V4L2_CID_CONTRAST, | |
382 | .type = V4L2_CTRL_TYPE_INTEGER, | |
383 | .name = "Contrast", | |
384 | .minimum = 0, | |
385 | .maximum = 255, | |
386 | .step = 0x1, | |
387 | .default_value = DEF_CONTRAST, | |
388 | .flags = 0, | |
389 | }, { | |
390 | .id = V4L2_CID_SATURATION, | |
391 | .type = V4L2_CTRL_TYPE_INTEGER, | |
392 | .name = "Saturation", | |
393 | .minimum = 0, | |
394 | .maximum = 255, | |
395 | .step = 0x1, | |
396 | .default_value = DEF_SATURATION, | |
397 | .flags = 0, | |
398 | }, { | |
399 | .id = V4L2_CID_HUE, | |
400 | .type = V4L2_CTRL_TYPE_INTEGER, | |
401 | .name = "Hue", | |
402 | .minimum = 0, | |
403 | .maximum = 255, | |
404 | .step = 0x1, | |
405 | .default_value = DEF_HUE, | |
406 | .flags = 0, | |
407 | } | |
408 | }; | |
409 | ||
410 | static int qctl_regs[ARRAY_SIZE(s2255_qctrl)]; | |
411 | ||
412 | /* image formats. */ | |
413 | static const struct s2255_fmt formats[] = { | |
414 | { | |
415 | .name = "4:2:2, planar, YUV422P", | |
416 | .fourcc = V4L2_PIX_FMT_YUV422P, | |
417 | .depth = 16 | |
418 | ||
419 | }, { | |
420 | .name = "4:2:2, packed, YUYV", | |
421 | .fourcc = V4L2_PIX_FMT_YUYV, | |
422 | .depth = 16 | |
423 | ||
424 | }, { | |
425 | .name = "4:2:2, packed, UYVY", | |
426 | .fourcc = V4L2_PIX_FMT_UYVY, | |
427 | .depth = 16 | |
14d96260 DA |
428 | }, { |
429 | .name = "JPG", | |
430 | .fourcc = V4L2_PIX_FMT_JPEG, | |
431 | .depth = 24 | |
38f993ad DA |
432 | }, { |
433 | .name = "8bpp GREY", | |
434 | .fourcc = V4L2_PIX_FMT_GREY, | |
435 | .depth = 8 | |
436 | } | |
437 | }; | |
438 | ||
439 | static int norm_maxw(struct video_device *vdev) | |
440 | { | |
441 | return (vdev->current_norm & V4L2_STD_NTSC) ? | |
442 | LINE_SZ_4CIFS_NTSC : LINE_SZ_4CIFS_PAL; | |
443 | } | |
444 | ||
445 | static int norm_maxh(struct video_device *vdev) | |
446 | { | |
447 | return (vdev->current_norm & V4L2_STD_NTSC) ? | |
448 | (NUM_LINES_1CIFS_NTSC * 2) : (NUM_LINES_1CIFS_PAL * 2); | |
449 | } | |
450 | ||
451 | static int norm_minw(struct video_device *vdev) | |
452 | { | |
453 | return (vdev->current_norm & V4L2_STD_NTSC) ? | |
454 | LINE_SZ_1CIFS_NTSC : LINE_SZ_1CIFS_PAL; | |
455 | } | |
456 | ||
457 | static int norm_minh(struct video_device *vdev) | |
458 | { | |
459 | return (vdev->current_norm & V4L2_STD_NTSC) ? | |
460 | (NUM_LINES_1CIFS_NTSC) : (NUM_LINES_1CIFS_PAL); | |
461 | } | |
462 | ||
463 | ||
3f8d6f73 DA |
464 | /* |
465 | * TODO: fixme: move YUV reordering to hardware | |
466 | * converts 2255 planar format to yuyv or uyvy | |
467 | */ | |
38f993ad DA |
468 | static void planar422p_to_yuv_packed(const unsigned char *in, |
469 | unsigned char *out, | |
470 | int width, int height, | |
471 | int fmt) | |
472 | { | |
473 | unsigned char *pY; | |
474 | unsigned char *pCb; | |
475 | unsigned char *pCr; | |
476 | unsigned long size = height * width; | |
477 | unsigned int i; | |
478 | pY = (unsigned char *)in; | |
479 | pCr = (unsigned char *)in + height * width; | |
480 | pCb = (unsigned char *)in + height * width + (height * width / 2); | |
481 | for (i = 0; i < size * 2; i += 4) { | |
482 | out[i] = (fmt == V4L2_PIX_FMT_YUYV) ? *pY++ : *pCr++; | |
483 | out[i + 1] = (fmt == V4L2_PIX_FMT_YUYV) ? *pCr++ : *pY++; | |
484 | out[i + 2] = (fmt == V4L2_PIX_FMT_YUYV) ? *pY++ : *pCb++; | |
485 | out[i + 3] = (fmt == V4L2_PIX_FMT_YUYV) ? *pCb++ : *pY++; | |
486 | } | |
487 | return; | |
488 | } | |
489 | ||
14d96260 DA |
490 | void s2255_reset_dsppower(struct s2255_dev *dev) |
491 | { | |
492 | s2255_vendor_req(dev, 0x40, 0x0b0b, 0x0b0b, NULL, 0, 1); | |
493 | msleep(10); | |
494 | s2255_vendor_req(dev, 0x50, 0x0000, 0x0000, NULL, 0, 1); | |
495 | return; | |
496 | } | |
38f993ad DA |
497 | |
498 | /* kickstarts the firmware loading. from probe | |
499 | */ | |
500 | static void s2255_timer(unsigned long user_data) | |
501 | { | |
502 | struct s2255_fw *data = (struct s2255_fw *)user_data; | |
503 | dprintk(100, "s2255 timer\n"); | |
504 | if (usb_submit_urb(data->fw_urb, GFP_ATOMIC) < 0) { | |
505 | printk(KERN_ERR "s2255: can't submit urb\n"); | |
f78d92c9 DA |
506 | atomic_set(&data->fw_state, S2255_FW_FAILED); |
507 | /* wake up anything waiting for the firmware */ | |
508 | wake_up(&data->wait_fw); | |
38f993ad DA |
509 | return; |
510 | } | |
511 | } | |
512 | ||
38f993ad DA |
513 | |
514 | /* this loads the firmware asynchronously. | |
515 | Originally this was done synchroously in probe. | |
516 | But it is better to load it asynchronously here than block | |
517 | inside the probe function. Blocking inside probe affects boot time. | |
518 | FW loading is triggered by the timer in the probe function | |
519 | */ | |
520 | static void s2255_fwchunk_complete(struct urb *urb) | |
521 | { | |
522 | struct s2255_fw *data = urb->context; | |
523 | struct usb_device *udev = urb->dev; | |
524 | int len; | |
525 | dprintk(100, "udev %p urb %p", udev, urb); | |
38f993ad DA |
526 | if (urb->status) { |
527 | dev_err(&udev->dev, "URB failed with status %d", urb->status); | |
f78d92c9 DA |
528 | atomic_set(&data->fw_state, S2255_FW_FAILED); |
529 | /* wake up anything waiting for the firmware */ | |
530 | wake_up(&data->wait_fw); | |
38f993ad DA |
531 | return; |
532 | } | |
533 | if (data->fw_urb == NULL) { | |
f78d92c9 DA |
534 | dev_err(&udev->dev, "s2255 disconnected\n"); |
535 | atomic_set(&data->fw_state, S2255_FW_FAILED); | |
536 | /* wake up anything waiting for the firmware */ | |
537 | wake_up(&data->wait_fw); | |
38f993ad DA |
538 | return; |
539 | } | |
540 | #define CHUNK_SIZE 512 | |
541 | /* all USB transfers must be done with continuous kernel memory. | |
542 | can't allocate more than 128k in current linux kernel, so | |
543 | upload the firmware in chunks | |
544 | */ | |
545 | if (data->fw_loaded < data->fw_size) { | |
546 | len = (data->fw_loaded + CHUNK_SIZE) > data->fw_size ? | |
547 | data->fw_size % CHUNK_SIZE : CHUNK_SIZE; | |
548 | ||
549 | if (len < CHUNK_SIZE) | |
550 | memset(data->pfw_data, 0, CHUNK_SIZE); | |
551 | ||
552 | dprintk(100, "completed len %d, loaded %d \n", len, | |
553 | data->fw_loaded); | |
554 | ||
555 | memcpy(data->pfw_data, | |
556 | (char *) data->fw->data + data->fw_loaded, len); | |
557 | ||
558 | usb_fill_bulk_urb(data->fw_urb, udev, usb_sndbulkpipe(udev, 2), | |
559 | data->pfw_data, CHUNK_SIZE, | |
560 | s2255_fwchunk_complete, data); | |
561 | if (usb_submit_urb(data->fw_urb, GFP_ATOMIC) < 0) { | |
562 | dev_err(&udev->dev, "failed submit URB\n"); | |
563 | atomic_set(&data->fw_state, S2255_FW_FAILED); | |
564 | /* wake up anything waiting for the firmware */ | |
565 | wake_up(&data->wait_fw); | |
566 | return; | |
567 | } | |
568 | data->fw_loaded += len; | |
569 | } else { | |
38f993ad | 570 | atomic_set(&data->fw_state, S2255_FW_LOADED_DSPWAIT); |
38f993ad DA |
571 | } |
572 | dprintk(100, "2255 complete done\n"); | |
573 | return; | |
574 | ||
575 | } | |
576 | ||
14d96260 | 577 | static int s2255_got_frame(struct s2255_dev *dev, int chn, int jpgsize) |
38f993ad DA |
578 | { |
579 | struct s2255_dmaqueue *dma_q = &dev->vidq[chn]; | |
580 | struct s2255_buffer *buf; | |
581 | unsigned long flags = 0; | |
582 | int rc = 0; | |
583 | dprintk(2, "wakeup: %p channel: %d\n", &dma_q, chn); | |
584 | spin_lock_irqsave(&dev->slock, flags); | |
585 | ||
586 | if (list_empty(&dma_q->active)) { | |
587 | dprintk(1, "No active queue to serve\n"); | |
588 | rc = -1; | |
589 | goto unlock; | |
590 | } | |
591 | buf = list_entry(dma_q->active.next, | |
592 | struct s2255_buffer, vb.queue); | |
593 | ||
594 | if (!waitqueue_active(&buf->vb.done)) { | |
595 | /* no one active */ | |
596 | rc = -1; | |
597 | goto unlock; | |
598 | } | |
599 | list_del(&buf->vb.queue); | |
600 | do_gettimeofday(&buf->vb.ts); | |
601 | dprintk(100, "[%p/%d] wakeup\n", buf, buf->vb.i); | |
14d96260 | 602 | s2255_fillbuff(dev, buf, dma_q->channel, jpgsize); |
38f993ad DA |
603 | wake_up(&buf->vb.done); |
604 | dprintk(2, "wakeup [buf/i] [%p/%d]\n", buf, buf->vb.i); | |
605 | unlock: | |
606 | spin_unlock_irqrestore(&dev->slock, flags); | |
607 | return 0; | |
608 | } | |
609 | ||
610 | ||
611 | static const struct s2255_fmt *format_by_fourcc(int fourcc) | |
612 | { | |
613 | unsigned int i; | |
614 | ||
615 | for (i = 0; i < ARRAY_SIZE(formats); i++) { | |
616 | if (-1 == formats[i].fourcc) | |
617 | continue; | |
618 | if (formats[i].fourcc == fourcc) | |
619 | return formats + i; | |
620 | } | |
621 | return NULL; | |
622 | } | |
623 | ||
624 | ||
625 | ||
626 | ||
627 | /* video buffer vmalloc implementation based partly on VIVI driver which is | |
628 | * Copyright (c) 2006 by | |
629 | * Mauro Carvalho Chehab <mchehab--a.t--infradead.org> | |
630 | * Ted Walther <ted--a.t--enumera.com> | |
631 | * John Sokol <sokol--a.t--videotechnology.com> | |
632 | * http://v4l.videotechnology.com/ | |
633 | * | |
634 | */ | |
635 | static void s2255_fillbuff(struct s2255_dev *dev, struct s2255_buffer *buf, | |
14d96260 | 636 | int chn, int jpgsize) |
38f993ad DA |
637 | { |
638 | int pos = 0; | |
639 | struct timeval ts; | |
640 | const char *tmpbuf; | |
641 | char *vbuf = videobuf_to_vmalloc(&buf->vb); | |
642 | unsigned long last_frame; | |
643 | struct s2255_framei *frm; | |
644 | ||
645 | if (!vbuf) | |
646 | return; | |
647 | ||
648 | last_frame = dev->last_frame[chn]; | |
649 | if (last_frame != -1) { | |
650 | frm = &dev->buffer[chn].frame[last_frame]; | |
651 | tmpbuf = | |
652 | (const char *)dev->buffer[chn].frame[last_frame].lpvbits; | |
653 | switch (buf->fmt->fourcc) { | |
654 | case V4L2_PIX_FMT_YUYV: | |
655 | case V4L2_PIX_FMT_UYVY: | |
656 | planar422p_to_yuv_packed((const unsigned char *)tmpbuf, | |
657 | vbuf, buf->vb.width, | |
658 | buf->vb.height, | |
659 | buf->fmt->fourcc); | |
660 | break; | |
661 | case V4L2_PIX_FMT_GREY: | |
662 | memcpy(vbuf, tmpbuf, buf->vb.width * buf->vb.height); | |
663 | break; | |
14d96260 DA |
664 | case V4L2_PIX_FMT_JPEG: |
665 | buf->vb.size = jpgsize; | |
666 | memcpy(vbuf, tmpbuf, buf->vb.size); | |
667 | break; | |
38f993ad DA |
668 | case V4L2_PIX_FMT_YUV422P: |
669 | memcpy(vbuf, tmpbuf, | |
670 | buf->vb.width * buf->vb.height * 2); | |
671 | break; | |
672 | default: | |
673 | printk(KERN_DEBUG "s2255: unknown format?\n"); | |
674 | } | |
675 | dev->last_frame[chn] = -1; | |
38f993ad DA |
676 | } else { |
677 | printk(KERN_ERR "s2255: =======no frame\n"); | |
678 | return; | |
679 | ||
680 | } | |
681 | dprintk(2, "s2255fill at : Buffer 0x%08lx size= %d\n", | |
682 | (unsigned long)vbuf, pos); | |
683 | /* tell v4l buffer was filled */ | |
684 | ||
a1c4530e | 685 | buf->vb.field_count = dev->frame_count[chn] * 2; |
38f993ad DA |
686 | do_gettimeofday(&ts); |
687 | buf->vb.ts = ts; | |
688 | buf->vb.state = VIDEOBUF_DONE; | |
689 | } | |
690 | ||
691 | ||
692 | /* ------------------------------------------------------------------ | |
693 | Videobuf operations | |
694 | ------------------------------------------------------------------*/ | |
695 | ||
696 | static int buffer_setup(struct videobuf_queue *vq, unsigned int *count, | |
697 | unsigned int *size) | |
698 | { | |
699 | struct s2255_fh *fh = vq->priv_data; | |
700 | ||
701 | *size = fh->width * fh->height * (fh->fmt->depth >> 3); | |
702 | ||
703 | if (0 == *count) | |
704 | *count = S2255_DEF_BUFS; | |
705 | ||
3f8d6f73 | 706 | while (*size * (*count) > vid_limit * 1024 * 1024) |
38f993ad DA |
707 | (*count)--; |
708 | ||
709 | return 0; | |
710 | } | |
711 | ||
712 | static void free_buffer(struct videobuf_queue *vq, struct s2255_buffer *buf) | |
713 | { | |
714 | dprintk(4, "%s\n", __func__); | |
715 | ||
716 | videobuf_waiton(&buf->vb, 0, 0); | |
717 | videobuf_vmalloc_free(&buf->vb); | |
718 | buf->vb.state = VIDEOBUF_NEEDS_INIT; | |
719 | } | |
720 | ||
721 | static int buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, | |
722 | enum v4l2_field field) | |
723 | { | |
724 | struct s2255_fh *fh = vq->priv_data; | |
725 | struct s2255_buffer *buf = container_of(vb, struct s2255_buffer, vb); | |
726 | int rc; | |
727 | dprintk(4, "%s, field=%d\n", __func__, field); | |
728 | if (fh->fmt == NULL) | |
729 | return -EINVAL; | |
730 | ||
731 | if ((fh->width < norm_minw(fh->dev->vdev[fh->channel])) || | |
732 | (fh->width > norm_maxw(fh->dev->vdev[fh->channel])) || | |
733 | (fh->height < norm_minh(fh->dev->vdev[fh->channel])) || | |
734 | (fh->height > norm_maxh(fh->dev->vdev[fh->channel]))) { | |
735 | dprintk(4, "invalid buffer prepare\n"); | |
736 | return -EINVAL; | |
737 | } | |
738 | ||
739 | buf->vb.size = fh->width * fh->height * (fh->fmt->depth >> 3); | |
740 | ||
741 | if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) { | |
742 | dprintk(4, "invalid buffer prepare\n"); | |
743 | return -EINVAL; | |
744 | } | |
745 | ||
746 | buf->fmt = fh->fmt; | |
747 | buf->vb.width = fh->width; | |
748 | buf->vb.height = fh->height; | |
749 | buf->vb.field = field; | |
750 | ||
751 | ||
752 | if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { | |
753 | rc = videobuf_iolock(vq, &buf->vb, NULL); | |
754 | if (rc < 0) | |
755 | goto fail; | |
756 | } | |
757 | ||
758 | buf->vb.state = VIDEOBUF_PREPARED; | |
759 | return 0; | |
760 | fail: | |
761 | free_buffer(vq, buf); | |
762 | return rc; | |
763 | } | |
764 | ||
765 | static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) | |
766 | { | |
767 | struct s2255_buffer *buf = container_of(vb, struct s2255_buffer, vb); | |
768 | struct s2255_fh *fh = vq->priv_data; | |
769 | struct s2255_dev *dev = fh->dev; | |
770 | struct s2255_dmaqueue *vidq = &dev->vidq[fh->channel]; | |
771 | ||
772 | dprintk(1, "%s\n", __func__); | |
773 | ||
774 | buf->vb.state = VIDEOBUF_QUEUED; | |
775 | list_add_tail(&buf->vb.queue, &vidq->active); | |
776 | } | |
777 | ||
778 | static void buffer_release(struct videobuf_queue *vq, | |
779 | struct videobuf_buffer *vb) | |
780 | { | |
781 | struct s2255_buffer *buf = container_of(vb, struct s2255_buffer, vb); | |
782 | struct s2255_fh *fh = vq->priv_data; | |
783 | dprintk(4, "%s %d\n", __func__, fh->channel); | |
784 | free_buffer(vq, buf); | |
785 | } | |
786 | ||
787 | static struct videobuf_queue_ops s2255_video_qops = { | |
788 | .buf_setup = buffer_setup, | |
789 | .buf_prepare = buffer_prepare, | |
790 | .buf_queue = buffer_queue, | |
791 | .buf_release = buffer_release, | |
792 | }; | |
793 | ||
794 | ||
795 | static int res_get(struct s2255_dev *dev, struct s2255_fh *fh) | |
796 | { | |
797 | /* is it free? */ | |
798 | mutex_lock(&dev->lock); | |
799 | if (dev->resources[fh->channel]) { | |
800 | /* no, someone else uses it */ | |
801 | mutex_unlock(&dev->lock); | |
802 | return 0; | |
803 | } | |
804 | /* it's free, grab it */ | |
805 | dev->resources[fh->channel] = 1; | |
f78d92c9 DA |
806 | fh->resources[fh->channel] = 1; |
807 | dprintk(1, "s2255: res: get\n"); | |
38f993ad DA |
808 | mutex_unlock(&dev->lock); |
809 | return 1; | |
810 | } | |
811 | ||
812 | static int res_locked(struct s2255_dev *dev, struct s2255_fh *fh) | |
813 | { | |
3f8d6f73 | 814 | return dev->resources[fh->channel]; |
38f993ad DA |
815 | } |
816 | ||
f78d92c9 DA |
817 | static int res_check(struct s2255_fh *fh) |
818 | { | |
819 | return fh->resources[fh->channel]; | |
820 | } | |
821 | ||
822 | ||
38f993ad DA |
823 | static void res_free(struct s2255_dev *dev, struct s2255_fh *fh) |
824 | { | |
f78d92c9 | 825 | mutex_lock(&dev->lock); |
38f993ad | 826 | dev->resources[fh->channel] = 0; |
f78d92c9 DA |
827 | fh->resources[fh->channel] = 0; |
828 | mutex_unlock(&dev->lock); | |
38f993ad DA |
829 | dprintk(1, "res: put\n"); |
830 | } | |
831 | ||
832 | ||
833 | static int vidioc_querycap(struct file *file, void *priv, | |
834 | struct v4l2_capability *cap) | |
835 | { | |
836 | struct s2255_fh *fh = file->private_data; | |
837 | struct s2255_dev *dev = fh->dev; | |
838 | strlcpy(cap->driver, "s2255", sizeof(cap->driver)); | |
839 | strlcpy(cap->card, "s2255", sizeof(cap->card)); | |
3f8d6f73 DA |
840 | strlcpy(cap->bus_info, dev_name(&dev->udev->dev), |
841 | sizeof(cap->bus_info)); | |
38f993ad DA |
842 | cap->version = S2255_VERSION; |
843 | cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; | |
844 | return 0; | |
845 | } | |
846 | ||
847 | static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, | |
848 | struct v4l2_fmtdesc *f) | |
849 | { | |
850 | int index = 0; | |
851 | if (f) | |
852 | index = f->index; | |
853 | ||
854 | if (index >= ARRAY_SIZE(formats)) | |
855 | return -EINVAL; | |
856 | ||
857 | dprintk(4, "name %s\n", formats[index].name); | |
858 | strlcpy(f->description, formats[index].name, sizeof(f->description)); | |
859 | f->pixelformat = formats[index].fourcc; | |
860 | return 0; | |
861 | } | |
862 | ||
863 | static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, | |
864 | struct v4l2_format *f) | |
865 | { | |
866 | struct s2255_fh *fh = priv; | |
867 | ||
868 | f->fmt.pix.width = fh->width; | |
869 | f->fmt.pix.height = fh->height; | |
870 | f->fmt.pix.field = fh->vb_vidq.field; | |
871 | f->fmt.pix.pixelformat = fh->fmt->fourcc; | |
872 | f->fmt.pix.bytesperline = f->fmt.pix.width * (fh->fmt->depth >> 3); | |
873 | f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; | |
3f8d6f73 | 874 | return 0; |
38f993ad DA |
875 | } |
876 | ||
877 | static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, | |
878 | struct v4l2_format *f) | |
879 | { | |
880 | const struct s2255_fmt *fmt; | |
881 | enum v4l2_field field; | |
882 | int b_any_field = 0; | |
883 | struct s2255_fh *fh = priv; | |
884 | struct s2255_dev *dev = fh->dev; | |
885 | int is_ntsc; | |
886 | ||
887 | is_ntsc = | |
888 | (dev->vdev[fh->channel]->current_norm & V4L2_STD_NTSC) ? 1 : 0; | |
889 | ||
890 | fmt = format_by_fourcc(f->fmt.pix.pixelformat); | |
891 | ||
892 | if (fmt == NULL) | |
893 | return -EINVAL; | |
894 | ||
895 | field = f->fmt.pix.field; | |
896 | if (field == V4L2_FIELD_ANY) | |
897 | b_any_field = 1; | |
898 | ||
899 | dprintk(4, "try format %d \n", is_ntsc); | |
900 | /* supports 3 sizes. see s2255drv.h */ | |
901 | dprintk(50, "width test %d, height %d\n", | |
902 | f->fmt.pix.width, f->fmt.pix.height); | |
903 | if (is_ntsc) { | |
904 | /* NTSC */ | |
905 | if (f->fmt.pix.height >= NUM_LINES_1CIFS_NTSC * 2) { | |
906 | f->fmt.pix.height = NUM_LINES_1CIFS_NTSC * 2; | |
907 | if (b_any_field) { | |
908 | field = V4L2_FIELD_SEQ_TB; | |
909 | } else if (!((field == V4L2_FIELD_INTERLACED) || | |
910 | (field == V4L2_FIELD_SEQ_TB) || | |
911 | (field == V4L2_FIELD_INTERLACED_TB))) { | |
912 | dprintk(1, "unsupported field setting\n"); | |
913 | return -EINVAL; | |
914 | } | |
915 | } else { | |
916 | f->fmt.pix.height = NUM_LINES_1CIFS_NTSC; | |
917 | if (b_any_field) { | |
918 | field = V4L2_FIELD_TOP; | |
919 | } else if (!((field == V4L2_FIELD_TOP) || | |
920 | (field == V4L2_FIELD_BOTTOM))) { | |
921 | dprintk(1, "unsupported field setting\n"); | |
922 | return -EINVAL; | |
923 | } | |
924 | ||
925 | } | |
926 | if (f->fmt.pix.width >= LINE_SZ_4CIFS_NTSC) | |
927 | f->fmt.pix.width = LINE_SZ_4CIFS_NTSC; | |
928 | else if (f->fmt.pix.width >= LINE_SZ_2CIFS_NTSC) | |
929 | f->fmt.pix.width = LINE_SZ_2CIFS_NTSC; | |
930 | else if (f->fmt.pix.width >= LINE_SZ_1CIFS_NTSC) | |
931 | f->fmt.pix.width = LINE_SZ_1CIFS_NTSC; | |
932 | else | |
933 | f->fmt.pix.width = LINE_SZ_1CIFS_NTSC; | |
934 | } else { | |
935 | /* PAL */ | |
936 | if (f->fmt.pix.height >= NUM_LINES_1CIFS_PAL * 2) { | |
937 | f->fmt.pix.height = NUM_LINES_1CIFS_PAL * 2; | |
938 | if (b_any_field) { | |
939 | field = V4L2_FIELD_SEQ_TB; | |
940 | } else if (!((field == V4L2_FIELD_INTERLACED) || | |
941 | (field == V4L2_FIELD_SEQ_TB) || | |
942 | (field == V4L2_FIELD_INTERLACED_TB))) { | |
943 | dprintk(1, "unsupported field setting\n"); | |
944 | return -EINVAL; | |
945 | } | |
946 | } else { | |
947 | f->fmt.pix.height = NUM_LINES_1CIFS_PAL; | |
948 | if (b_any_field) { | |
949 | field = V4L2_FIELD_TOP; | |
950 | } else if (!((field == V4L2_FIELD_TOP) || | |
951 | (field == V4L2_FIELD_BOTTOM))) { | |
952 | dprintk(1, "unsupported field setting\n"); | |
953 | return -EINVAL; | |
954 | } | |
955 | } | |
956 | if (f->fmt.pix.width >= LINE_SZ_4CIFS_PAL) { | |
957 | dprintk(50, "pal 704\n"); | |
958 | f->fmt.pix.width = LINE_SZ_4CIFS_PAL; | |
959 | field = V4L2_FIELD_SEQ_TB; | |
960 | } else if (f->fmt.pix.width >= LINE_SZ_2CIFS_PAL) { | |
961 | dprintk(50, "pal 352A\n"); | |
962 | f->fmt.pix.width = LINE_SZ_2CIFS_PAL; | |
963 | field = V4L2_FIELD_TOP; | |
964 | } else if (f->fmt.pix.width >= LINE_SZ_1CIFS_PAL) { | |
965 | dprintk(50, "pal 352B\n"); | |
966 | f->fmt.pix.width = LINE_SZ_1CIFS_PAL; | |
967 | field = V4L2_FIELD_TOP; | |
968 | } else { | |
969 | dprintk(50, "pal 352C\n"); | |
970 | f->fmt.pix.width = LINE_SZ_1CIFS_PAL; | |
971 | field = V4L2_FIELD_TOP; | |
972 | } | |
973 | } | |
974 | ||
975 | dprintk(50, "width %d height %d field %d \n", f->fmt.pix.width, | |
976 | f->fmt.pix.height, f->fmt.pix.field); | |
977 | f->fmt.pix.field = field; | |
978 | f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3; | |
979 | f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; | |
980 | return 0; | |
981 | } | |
982 | ||
983 | static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, | |
984 | struct v4l2_format *f) | |
985 | { | |
986 | struct s2255_fh *fh = priv; | |
987 | const struct s2255_fmt *fmt; | |
988 | struct videobuf_queue *q = &fh->vb_vidq; | |
989 | int ret; | |
990 | int norm; | |
991 | ||
992 | ret = vidioc_try_fmt_vid_cap(file, fh, f); | |
993 | ||
994 | if (ret < 0) | |
3f8d6f73 | 995 | return ret; |
38f993ad DA |
996 | |
997 | fmt = format_by_fourcc(f->fmt.pix.pixelformat); | |
998 | ||
999 | if (fmt == NULL) | |
1000 | return -EINVAL; | |
1001 | ||
1002 | mutex_lock(&q->vb_lock); | |
1003 | ||
1004 | if (videobuf_queue_is_busy(&fh->vb_vidq)) { | |
1005 | dprintk(1, "queue busy\n"); | |
1006 | ret = -EBUSY; | |
1007 | goto out_s_fmt; | |
1008 | } | |
1009 | ||
1010 | if (res_locked(fh->dev, fh)) { | |
1011 | dprintk(1, "can't change format after started\n"); | |
1012 | ret = -EBUSY; | |
1013 | goto out_s_fmt; | |
1014 | } | |
1015 | ||
1016 | fh->fmt = fmt; | |
1017 | fh->width = f->fmt.pix.width; | |
1018 | fh->height = f->fmt.pix.height; | |
1019 | fh->vb_vidq.field = f->fmt.pix.field; | |
1020 | fh->type = f->type; | |
1021 | norm = norm_minw(fh->dev->vdev[fh->channel]); | |
1022 | if (fh->width > norm_minw(fh->dev->vdev[fh->channel])) { | |
1023 | if (fh->height > norm_minh(fh->dev->vdev[fh->channel])) | |
1024 | fh->mode.scale = SCALE_4CIFS; | |
1025 | else | |
1026 | fh->mode.scale = SCALE_2CIFS; | |
1027 | ||
1028 | } else { | |
1029 | fh->mode.scale = SCALE_1CIFS; | |
1030 | } | |
1031 | ||
1032 | /* color mode */ | |
1033 | switch (fh->fmt->fourcc) { | |
1034 | case V4L2_PIX_FMT_GREY: | |
1035 | fh->mode.color = COLOR_Y8; | |
1036 | break; | |
14d96260 DA |
1037 | case V4L2_PIX_FMT_JPEG: |
1038 | fh->mode.color = COLOR_JPG | (50 << 8); | |
1039 | break; | |
38f993ad DA |
1040 | case V4L2_PIX_FMT_YUV422P: |
1041 | fh->mode.color = COLOR_YUVPL; | |
1042 | break; | |
1043 | case V4L2_PIX_FMT_YUYV: | |
1044 | case V4L2_PIX_FMT_UYVY: | |
1045 | default: | |
1046 | fh->mode.color = COLOR_YUVPK; | |
1047 | break; | |
1048 | } | |
1049 | ret = 0; | |
1050 | out_s_fmt: | |
1051 | mutex_unlock(&q->vb_lock); | |
1052 | return ret; | |
1053 | } | |
1054 | ||
1055 | static int vidioc_reqbufs(struct file *file, void *priv, | |
1056 | struct v4l2_requestbuffers *p) | |
1057 | { | |
1058 | int rc; | |
1059 | struct s2255_fh *fh = priv; | |
1060 | rc = videobuf_reqbufs(&fh->vb_vidq, p); | |
1061 | return rc; | |
1062 | } | |
1063 | ||
1064 | static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *p) | |
1065 | { | |
1066 | int rc; | |
1067 | struct s2255_fh *fh = priv; | |
1068 | rc = videobuf_querybuf(&fh->vb_vidq, p); | |
1069 | return rc; | |
1070 | } | |
1071 | ||
1072 | static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p) | |
1073 | { | |
1074 | int rc; | |
1075 | struct s2255_fh *fh = priv; | |
1076 | rc = videobuf_qbuf(&fh->vb_vidq, p); | |
1077 | return rc; | |
1078 | } | |
1079 | ||
1080 | static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p) | |
1081 | { | |
1082 | int rc; | |
1083 | struct s2255_fh *fh = priv; | |
1084 | rc = videobuf_dqbuf(&fh->vb_vidq, p, file->f_flags & O_NONBLOCK); | |
1085 | return rc; | |
1086 | } | |
1087 | ||
1088 | #ifdef CONFIG_VIDEO_V4L1_COMPAT | |
1089 | static int vidioc_cgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf) | |
1090 | { | |
1091 | struct s2255_fh *fh = priv; | |
1092 | ||
1093 | return videobuf_cgmbuf(&fh->vb_vidq, mbuf, 8); | |
1094 | } | |
1095 | #endif | |
1096 | ||
1097 | /* write to the configuration pipe, synchronously */ | |
1098 | static int s2255_write_config(struct usb_device *udev, unsigned char *pbuf, | |
1099 | int size) | |
1100 | { | |
1101 | int pipe; | |
1102 | int done; | |
1103 | long retval = -1; | |
1104 | if (udev) { | |
1105 | pipe = usb_sndbulkpipe(udev, S2255_CONFIG_EP); | |
1106 | retval = usb_bulk_msg(udev, pipe, pbuf, size, &done, 500); | |
1107 | } | |
1108 | return retval; | |
1109 | } | |
1110 | ||
1111 | static u32 get_transfer_size(struct s2255_mode *mode) | |
1112 | { | |
1113 | int linesPerFrame = LINE_SZ_DEF; | |
1114 | int pixelsPerLine = NUM_LINES_DEF; | |
1115 | u32 outImageSize; | |
1116 | u32 usbInSize; | |
1117 | unsigned int mask_mult; | |
1118 | ||
1119 | if (mode == NULL) | |
1120 | return 0; | |
1121 | ||
1122 | if (mode->format == FORMAT_NTSC) { | |
1123 | switch (mode->scale) { | |
1124 | case SCALE_4CIFS: | |
1125 | linesPerFrame = NUM_LINES_4CIFS_NTSC * 2; | |
1126 | pixelsPerLine = LINE_SZ_4CIFS_NTSC; | |
1127 | break; | |
1128 | case SCALE_2CIFS: | |
1129 | linesPerFrame = NUM_LINES_2CIFS_NTSC; | |
1130 | pixelsPerLine = LINE_SZ_2CIFS_NTSC; | |
1131 | break; | |
1132 | case SCALE_1CIFS: | |
1133 | linesPerFrame = NUM_LINES_1CIFS_NTSC; | |
1134 | pixelsPerLine = LINE_SZ_1CIFS_NTSC; | |
1135 | break; | |
1136 | default: | |
1137 | break; | |
1138 | } | |
1139 | } else if (mode->format == FORMAT_PAL) { | |
1140 | switch (mode->scale) { | |
1141 | case SCALE_4CIFS: | |
1142 | linesPerFrame = NUM_LINES_4CIFS_PAL * 2; | |
1143 | pixelsPerLine = LINE_SZ_4CIFS_PAL; | |
1144 | break; | |
1145 | case SCALE_2CIFS: | |
1146 | linesPerFrame = NUM_LINES_2CIFS_PAL; | |
1147 | pixelsPerLine = LINE_SZ_2CIFS_PAL; | |
1148 | break; | |
1149 | case SCALE_1CIFS: | |
1150 | linesPerFrame = NUM_LINES_1CIFS_PAL; | |
1151 | pixelsPerLine = LINE_SZ_1CIFS_PAL; | |
1152 | break; | |
1153 | default: | |
1154 | break; | |
1155 | } | |
1156 | } | |
1157 | outImageSize = linesPerFrame * pixelsPerLine; | |
14d96260 | 1158 | if ((mode->color & MASK_COLOR) != COLOR_Y8) { |
38f993ad DA |
1159 | /* 2 bytes/pixel if not monochrome */ |
1160 | outImageSize *= 2; | |
1161 | } | |
1162 | ||
1163 | /* total bytes to send including prefix and 4K padding; | |
1164 | must be a multiple of USB_READ_SIZE */ | |
1165 | usbInSize = outImageSize + PREFIX_SIZE; /* always send prefix */ | |
1166 | mask_mult = 0xffffffffUL - DEF_USB_BLOCK + 1; | |
1167 | /* if size not a multiple of USB_READ_SIZE */ | |
1168 | if (usbInSize & ~mask_mult) | |
1169 | usbInSize = (usbInSize & mask_mult) + (DEF_USB_BLOCK); | |
1170 | return usbInSize; | |
1171 | } | |
1172 | ||
1173 | static void dump_verify_mode(struct s2255_dev *sdev, struct s2255_mode *mode) | |
1174 | { | |
1175 | struct device *dev = &sdev->udev->dev; | |
1176 | dev_info(dev, "------------------------------------------------\n"); | |
1177 | dev_info(dev, "verify mode\n"); | |
1178 | dev_info(dev, "format: %d\n", mode->format); | |
1179 | dev_info(dev, "scale: %d\n", mode->scale); | |
1180 | dev_info(dev, "fdec: %d\n", mode->fdec); | |
1181 | dev_info(dev, "color: %d\n", mode->color); | |
1182 | dev_info(dev, "bright: 0x%x\n", mode->bright); | |
1183 | dev_info(dev, "restart: 0x%x\n", mode->restart); | |
1184 | dev_info(dev, "usb_block: 0x%x\n", mode->usb_block); | |
1185 | dev_info(dev, "single: 0x%x\n", mode->single); | |
1186 | dev_info(dev, "------------------------------------------------\n"); | |
1187 | } | |
1188 | ||
1189 | /* | |
1190 | * set mode is the function which controls the DSP. | |
1191 | * the restart parameter in struct s2255_mode should be set whenever | |
1192 | * the image size could change via color format, video system or image | |
1193 | * size. | |
1194 | * When the restart parameter is set, we sleep for ONE frame to allow the | |
1195 | * DSP time to get the new frame | |
1196 | */ | |
1197 | static int s2255_set_mode(struct s2255_dev *dev, unsigned long chn, | |
1198 | struct s2255_mode *mode) | |
1199 | { | |
1200 | int res; | |
1201 | u32 *buffer; | |
1202 | unsigned long chn_rev; | |
1203 | ||
14d96260 | 1204 | mutex_lock(&dev->lock); |
38f993ad DA |
1205 | chn_rev = G_chnmap[chn]; |
1206 | dprintk(3, "mode scale [%ld] %p %d\n", chn, mode, mode->scale); | |
1207 | dprintk(3, "mode scale [%ld] %p %d\n", chn, &dev->mode[chn], | |
1208 | dev->mode[chn].scale); | |
1209 | dprintk(2, "mode contrast %x\n", mode->contrast); | |
1210 | ||
1211 | /* save the mode */ | |
1212 | dev->mode[chn] = *mode; | |
1213 | dev->req_image_size[chn] = get_transfer_size(mode); | |
1214 | dprintk(1, "transfer size %ld\n", dev->req_image_size[chn]); | |
1215 | ||
1216 | buffer = kzalloc(512, GFP_KERNEL); | |
1217 | if (buffer == NULL) { | |
1218 | dev_err(&dev->udev->dev, "out of mem\n"); | |
14d96260 | 1219 | mutex_unlock(&dev->lock); |
38f993ad DA |
1220 | return -ENOMEM; |
1221 | } | |
1222 | ||
1223 | /* set the mode */ | |
1224 | buffer[0] = IN_DATA_TOKEN; | |
1225 | buffer[1] = (u32) chn_rev; | |
1226 | buffer[2] = CMD_SET_MODE; | |
1227 | memcpy(&buffer[3], &dev->mode[chn], sizeof(struct s2255_mode)); | |
1228 | res = s2255_write_config(dev->udev, (unsigned char *)buffer, 512); | |
1229 | if (debug) | |
1230 | dump_verify_mode(dev, mode); | |
1231 | kfree(buffer); | |
1232 | dprintk(1, "set mode done chn %lu, %d\n", chn, res); | |
1233 | ||
1234 | /* wait at least 3 frames before continuing */ | |
14d96260 DA |
1235 | if (mode->restart) { |
1236 | dev->setmode_ready[chn] = 0; | |
1237 | wait_event_timeout(dev->wait_setmode[chn], | |
1238 | (dev->setmode_ready[chn] != 0), | |
1239 | msecs_to_jiffies(S2255_SETMODE_TIMEOUT)); | |
1240 | if (dev->setmode_ready[chn] != 1) { | |
1241 | printk(KERN_DEBUG "s2255: no set mode response\n"); | |
1242 | res = -EFAULT; | |
1243 | } | |
1244 | } | |
38f993ad DA |
1245 | |
1246 | /* clear the restart flag */ | |
1247 | dev->mode[chn].restart = 0; | |
14d96260 | 1248 | mutex_unlock(&dev->lock); |
38f993ad DA |
1249 | return res; |
1250 | } | |
1251 | ||
1252 | static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) | |
1253 | { | |
1254 | int res; | |
1255 | struct s2255_fh *fh = priv; | |
1256 | struct s2255_dev *dev = fh->dev; | |
1257 | struct s2255_mode *new_mode; | |
1258 | struct s2255_mode *old_mode; | |
1259 | int chn; | |
1260 | int j; | |
1261 | dprintk(4, "%s\n", __func__); | |
1262 | if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { | |
1263 | dev_err(&dev->udev->dev, "invalid fh type0\n"); | |
1264 | return -EINVAL; | |
1265 | } | |
1266 | if (i != fh->type) { | |
1267 | dev_err(&dev->udev->dev, "invalid fh type1\n"); | |
1268 | return -EINVAL; | |
1269 | } | |
1270 | ||
1271 | if (!res_get(dev, fh)) { | |
f78d92c9 | 1272 | dev_err(&dev->udev->dev, "s2255: stream busy\n"); |
38f993ad DA |
1273 | return -EBUSY; |
1274 | } | |
1275 | ||
1276 | /* send a set mode command everytime with restart. | |
1277 | in case we switch resolutions or other parameters */ | |
1278 | chn = fh->channel; | |
1279 | new_mode = &fh->mode; | |
1280 | old_mode = &fh->dev->mode[chn]; | |
1281 | ||
1282 | if (new_mode->color != old_mode->color) | |
1283 | new_mode->restart = 1; | |
1284 | else if (new_mode->scale != old_mode->scale) | |
1285 | new_mode->restart = 1; | |
1286 | else if (new_mode->format != old_mode->format) | |
1287 | new_mode->restart = 1; | |
1288 | ||
1289 | s2255_set_mode(dev, chn, new_mode); | |
1290 | new_mode->restart = 0; | |
1291 | *old_mode = *new_mode; | |
1292 | dev->cur_fmt[chn] = fh->fmt; | |
1293 | dprintk(1, "%s[%d]\n", __func__, chn); | |
1294 | dev->last_frame[chn] = -1; | |
1295 | dev->bad_payload[chn] = 0; | |
1296 | dev->cur_frame[chn] = 0; | |
a1c4530e | 1297 | dev->frame_count[chn] = 0; |
38f993ad | 1298 | for (j = 0; j < SYS_FRAMES; j++) { |
14d96260 | 1299 | dev->buffer[chn].frame[j].ulState = S2255_READ_IDLE; |
38f993ad DA |
1300 | dev->buffer[chn].frame[j].cur_size = 0; |
1301 | } | |
1302 | res = videobuf_streamon(&fh->vb_vidq); | |
1303 | if (res == 0) { | |
1304 | s2255_start_acquire(dev, chn); | |
1305 | dev->b_acquire[chn] = 1; | |
1306 | } else { | |
1307 | res_free(dev, fh); | |
1308 | } | |
1309 | return res; | |
1310 | } | |
1311 | ||
1312 | static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i) | |
1313 | { | |
1314 | int res; | |
1315 | struct s2255_fh *fh = priv; | |
1316 | struct s2255_dev *dev = fh->dev; | |
1317 | ||
1318 | dprintk(4, "%s\n, channel: %d", __func__, fh->channel); | |
1319 | if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { | |
1320 | printk(KERN_ERR "invalid fh type0\n"); | |
1321 | return -EINVAL; | |
1322 | } | |
1323 | if (i != fh->type) { | |
1324 | printk(KERN_ERR "invalid type i\n"); | |
1325 | return -EINVAL; | |
1326 | } | |
1327 | s2255_stop_acquire(dev, fh->channel); | |
1328 | res = videobuf_streamoff(&fh->vb_vidq); | |
f78d92c9 DA |
1329 | if (res < 0) |
1330 | return res; | |
38f993ad | 1331 | res_free(dev, fh); |
f78d92c9 | 1332 | return 0; |
38f993ad DA |
1333 | } |
1334 | ||
1335 | static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *i) | |
1336 | { | |
1337 | struct s2255_fh *fh = priv; | |
1338 | struct s2255_mode *mode; | |
1339 | struct videobuf_queue *q = &fh->vb_vidq; | |
1340 | int ret = 0; | |
1341 | ||
1342 | mutex_lock(&q->vb_lock); | |
1343 | if (videobuf_queue_is_busy(q)) { | |
1344 | dprintk(1, "queue busy\n"); | |
1345 | ret = -EBUSY; | |
1346 | goto out_s_std; | |
1347 | } | |
1348 | ||
1349 | if (res_locked(fh->dev, fh)) { | |
1350 | dprintk(1, "can't change standard after started\n"); | |
1351 | ret = -EBUSY; | |
1352 | goto out_s_std; | |
1353 | } | |
1354 | mode = &fh->mode; | |
1355 | ||
1356 | if (*i & V4L2_STD_NTSC) { | |
1357 | dprintk(4, "vidioc_s_std NTSC\n"); | |
1358 | mode->format = FORMAT_NTSC; | |
1359 | } else if (*i & V4L2_STD_PAL) { | |
1360 | dprintk(4, "vidioc_s_std PAL\n"); | |
1361 | mode->format = FORMAT_PAL; | |
1362 | } else { | |
1363 | ret = -EINVAL; | |
1364 | } | |
1365 | out_s_std: | |
1366 | mutex_unlock(&q->vb_lock); | |
1367 | return ret; | |
1368 | } | |
1369 | ||
1370 | /* Sensoray 2255 is a multiple channel capture device. | |
1371 | It does not have a "crossbar" of inputs. | |
1372 | We use one V4L device per channel. The user must | |
1373 | be aware that certain combinations are not allowed. | |
1374 | For instance, you cannot do full FPS on more than 2 channels(2 videodevs) | |
1375 | at once in color(you can do full fps on 4 channels with greyscale. | |
1376 | */ | |
1377 | static int vidioc_enum_input(struct file *file, void *priv, | |
1378 | struct v4l2_input *inp) | |
1379 | { | |
1380 | if (inp->index != 0) | |
1381 | return -EINVAL; | |
1382 | ||
1383 | inp->type = V4L2_INPUT_TYPE_CAMERA; | |
1384 | inp->std = S2255_NORMS; | |
1385 | strlcpy(inp->name, "Camera", sizeof(inp->name)); | |
3f8d6f73 | 1386 | return 0; |
38f993ad DA |
1387 | } |
1388 | ||
1389 | static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) | |
1390 | { | |
1391 | *i = 0; | |
1392 | return 0; | |
1393 | } | |
1394 | static int vidioc_s_input(struct file *file, void *priv, unsigned int i) | |
1395 | { | |
1396 | if (i > 0) | |
1397 | return -EINVAL; | |
1398 | return 0; | |
1399 | } | |
1400 | ||
1401 | /* --- controls ---------------------------------------------- */ | |
1402 | static int vidioc_queryctrl(struct file *file, void *priv, | |
1403 | struct v4l2_queryctrl *qc) | |
1404 | { | |
1405 | int i; | |
1406 | ||
1407 | for (i = 0; i < ARRAY_SIZE(s2255_qctrl); i++) | |
1408 | if (qc->id && qc->id == s2255_qctrl[i].id) { | |
1409 | memcpy(qc, &(s2255_qctrl[i]), sizeof(*qc)); | |
3f8d6f73 | 1410 | return 0; |
38f993ad DA |
1411 | } |
1412 | ||
1413 | dprintk(4, "query_ctrl -EINVAL %d\n", qc->id); | |
1414 | return -EINVAL; | |
1415 | } | |
1416 | ||
1417 | static int vidioc_g_ctrl(struct file *file, void *priv, | |
1418 | struct v4l2_control *ctrl) | |
1419 | { | |
1420 | int i; | |
1421 | ||
1422 | for (i = 0; i < ARRAY_SIZE(s2255_qctrl); i++) | |
1423 | if (ctrl->id == s2255_qctrl[i].id) { | |
1424 | ctrl->value = qctl_regs[i]; | |
3f8d6f73 | 1425 | return 0; |
38f993ad DA |
1426 | } |
1427 | dprintk(4, "g_ctrl -EINVAL\n"); | |
1428 | ||
1429 | return -EINVAL; | |
1430 | } | |
1431 | ||
1432 | static int vidioc_s_ctrl(struct file *file, void *priv, | |
1433 | struct v4l2_control *ctrl) | |
1434 | { | |
1435 | int i; | |
1436 | struct s2255_fh *fh = priv; | |
1437 | struct s2255_dev *dev = fh->dev; | |
1438 | struct s2255_mode *mode; | |
1439 | mode = &fh->mode; | |
1440 | dprintk(4, "vidioc_s_ctrl\n"); | |
1441 | for (i = 0; i < ARRAY_SIZE(s2255_qctrl); i++) { | |
1442 | if (ctrl->id == s2255_qctrl[i].id) { | |
1443 | if (ctrl->value < s2255_qctrl[i].minimum || | |
1444 | ctrl->value > s2255_qctrl[i].maximum) | |
3f8d6f73 | 1445 | return -ERANGE; |
38f993ad DA |
1446 | |
1447 | qctl_regs[i] = ctrl->value; | |
1448 | /* update the mode to the corresponding value */ | |
1449 | switch (ctrl->id) { | |
1450 | case V4L2_CID_BRIGHTNESS: | |
1451 | mode->bright = ctrl->value; | |
1452 | break; | |
1453 | case V4L2_CID_CONTRAST: | |
1454 | mode->contrast = ctrl->value; | |
1455 | break; | |
1456 | case V4L2_CID_HUE: | |
1457 | mode->hue = ctrl->value; | |
1458 | break; | |
1459 | case V4L2_CID_SATURATION: | |
1460 | mode->saturation = ctrl->value; | |
1461 | break; | |
1462 | } | |
1463 | mode->restart = 0; | |
1464 | /* set mode here. Note: stream does not need restarted. | |
1465 | some V4L programs restart stream unnecessarily | |
1466 | after a s_crtl. | |
1467 | */ | |
1468 | s2255_set_mode(dev, fh->channel, mode); | |
1469 | return 0; | |
1470 | } | |
1471 | } | |
1472 | return -EINVAL; | |
1473 | } | |
1474 | ||
1475 | static int s2255_open(struct inode *inode, struct file *file) | |
1476 | { | |
1477 | int minor = iminor(inode); | |
1478 | struct s2255_dev *h, *dev = NULL; | |
1479 | struct s2255_fh *fh; | |
1480 | struct list_head *list; | |
1481 | enum v4l2_buf_type type = 0; | |
1482 | int i = 0; | |
1483 | int cur_channel = -1; | |
14d96260 | 1484 | int state; |
38f993ad DA |
1485 | dprintk(1, "s2255: open called (minor=%d)\n", minor); |
1486 | ||
d56dc612 | 1487 | lock_kernel(); |
38f993ad DA |
1488 | list_for_each(list, &s2255_devlist) { |
1489 | h = list_entry(list, struct s2255_dev, s2255_devlist); | |
1490 | for (i = 0; i < MAX_CHANNELS; i++) { | |
1491 | if (h->vdev[i]->minor == minor) { | |
1492 | cur_channel = i; | |
1493 | dev = h; | |
1494 | type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1495 | } | |
1496 | } | |
1497 | } | |
1498 | ||
1499 | if ((NULL == dev) || (cur_channel == -1)) { | |
d56dc612 | 1500 | unlock_kernel(); |
14d96260 | 1501 | printk(KERN_INFO "s2255: openv4l no dev\n"); |
38f993ad DA |
1502 | return -ENODEV; |
1503 | } | |
1504 | ||
14d96260 DA |
1505 | if (atomic_read(&dev->fw_data->fw_state) == S2255_FW_DISCONNECTING) { |
1506 | unlock_kernel(); | |
1507 | printk(KERN_INFO "disconnecting\n"); | |
1508 | return -ENODEV; | |
1509 | } | |
1510 | kref_get(&dev->kref); | |
38f993ad DA |
1511 | mutex_lock(&dev->open_lock); |
1512 | ||
1513 | dev->users[cur_channel]++; | |
f78d92c9 | 1514 | dprintk(4, "s2255: open_handles %d\n", dev->users[cur_channel]); |
38f993ad | 1515 | |
14d96260 DA |
1516 | switch (atomic_read(&dev->fw_data->fw_state)) { |
1517 | case S2255_FW_FAILED: | |
38f993ad | 1518 | err("2255 firmware load failed. retrying.\n"); |
14d96260 | 1519 | s2255_fwload_start(dev, 1); |
38f993ad | 1520 | wait_event_timeout(dev->fw_data->wait_fw, |
14d96260 DA |
1521 | ((atomic_read(&dev->fw_data->fw_state) |
1522 | == S2255_FW_SUCCESS) || | |
1523 | (atomic_read(&dev->fw_data->fw_state) | |
1524 | == S2255_FW_DISCONNECTING)), | |
38f993ad | 1525 | msecs_to_jiffies(S2255_LOAD_TIMEOUT)); |
14d96260 DA |
1526 | break; |
1527 | case S2255_FW_NOTLOADED: | |
1528 | case S2255_FW_LOADED_DSPWAIT: | |
38f993ad DA |
1529 | /* give S2255_LOAD_TIMEOUT time for firmware to load in case |
1530 | driver loaded and then device immediately opened */ | |
1531 | printk(KERN_INFO "%s waiting for firmware load\n", __func__); | |
1532 | wait_event_timeout(dev->fw_data->wait_fw, | |
14d96260 DA |
1533 | ((atomic_read(&dev->fw_data->fw_state) |
1534 | == S2255_FW_SUCCESS) || | |
1535 | (atomic_read(&dev->fw_data->fw_state) | |
1536 | == S2255_FW_DISCONNECTING)), | |
1537 | msecs_to_jiffies(S2255_LOAD_TIMEOUT)); | |
1538 | break; | |
1539 | case S2255_FW_SUCCESS: | |
1540 | default: | |
1541 | break; | |
1542 | } | |
1543 | state = atomic_read(&dev->fw_data->fw_state); | |
1544 | if (state != S2255_FW_SUCCESS) { | |
1545 | int rc; | |
1546 | switch (state) { | |
1547 | case S2255_FW_FAILED: | |
1548 | printk(KERN_INFO "2255 FW load failed. %d\n", state); | |
1549 | rc = -ENODEV; | |
1550 | break; | |
1551 | case S2255_FW_DISCONNECTING: | |
1552 | printk(KERN_INFO "%s: disconnecting\n", __func__); | |
1553 | rc = -ENODEV; | |
1554 | break; | |
1555 | case S2255_FW_LOADED_DSPWAIT: | |
1556 | case S2255_FW_NOTLOADED: | |
1557 | printk(KERN_INFO "%s: firmware not loaded yet" | |
1558 | "please try again later\n", | |
1559 | __func__); | |
1560 | rc = -EAGAIN; | |
1561 | break; | |
1562 | default: | |
1563 | printk(KERN_INFO "%s: unknown state\n", __func__); | |
1564 | rc = -EFAULT; | |
1565 | break; | |
38f993ad | 1566 | } |
14d96260 DA |
1567 | dev->users[cur_channel]--; |
1568 | mutex_unlock(&dev->open_lock); | |
1569 | kref_put(&dev->kref, s2255_destroy); | |
1570 | unlock_kernel(); | |
1571 | return rc; | |
38f993ad DA |
1572 | } |
1573 | ||
1574 | /* allocate + initialize per filehandle data */ | |
1575 | fh = kzalloc(sizeof(*fh), GFP_KERNEL); | |
1576 | if (NULL == fh) { | |
f78d92c9 | 1577 | dev->users[cur_channel]--; |
38f993ad | 1578 | mutex_unlock(&dev->open_lock); |
14d96260 | 1579 | kref_put(&dev->kref, s2255_destroy); |
d56dc612 | 1580 | unlock_kernel(); |
38f993ad DA |
1581 | return -ENOMEM; |
1582 | } | |
1583 | ||
1584 | file->private_data = fh; | |
1585 | fh->dev = dev; | |
1586 | fh->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1587 | fh->mode = dev->mode[cur_channel]; | |
1588 | fh->fmt = dev->cur_fmt[cur_channel]; | |
1589 | /* default 4CIF NTSC */ | |
1590 | fh->width = LINE_SZ_4CIFS_NTSC; | |
1591 | fh->height = NUM_LINES_4CIFS_NTSC * 2; | |
1592 | fh->channel = cur_channel; | |
1593 | ||
14d96260 DA |
1594 | /* configure channel to default state */ |
1595 | if (!dev->chn_configured[cur_channel]) { | |
1596 | s2255_set_mode(dev, cur_channel, &fh->mode); | |
1597 | dev->chn_configured[cur_channel] = 1; | |
1598 | } | |
1599 | ||
1600 | ||
38f993ad DA |
1601 | /* Put all controls at a sane state */ |
1602 | for (i = 0; i < ARRAY_SIZE(s2255_qctrl); i++) | |
1603 | qctl_regs[i] = s2255_qctrl[i].default_value; | |
1604 | ||
1605 | dprintk(1, "s2255drv: open minor=%d type=%s users=%d\n", | |
1606 | minor, v4l2_type_names[type], dev->users[cur_channel]); | |
1607 | dprintk(2, "s2255drv: open: fh=0x%08lx, dev=0x%08lx, vidq=0x%08lx\n", | |
1608 | (unsigned long)fh, (unsigned long)dev, | |
1609 | (unsigned long)&dev->vidq[cur_channel]); | |
1610 | dprintk(4, "s2255drv: open: list_empty active=%d\n", | |
1611 | list_empty(&dev->vidq[cur_channel].active)); | |
1612 | ||
1613 | videobuf_queue_vmalloc_init(&fh->vb_vidq, &s2255_video_qops, | |
1614 | NULL, &dev->slock, | |
1615 | fh->type, | |
1616 | V4L2_FIELD_INTERLACED, | |
1617 | sizeof(struct s2255_buffer), fh); | |
1618 | ||
38f993ad | 1619 | mutex_unlock(&dev->open_lock); |
d56dc612 | 1620 | unlock_kernel(); |
38f993ad DA |
1621 | return 0; |
1622 | } | |
1623 | ||
1624 | ||
1625 | static unsigned int s2255_poll(struct file *file, | |
1626 | struct poll_table_struct *wait) | |
1627 | { | |
1628 | struct s2255_fh *fh = file->private_data; | |
1629 | int rc; | |
1630 | dprintk(100, "%s\n", __func__); | |
1631 | ||
1632 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type) | |
1633 | return POLLERR; | |
1634 | ||
1635 | rc = videobuf_poll_stream(file, &fh->vb_vidq, wait); | |
1636 | return rc; | |
1637 | } | |
1638 | ||
1639 | static void s2255_destroy(struct kref *kref) | |
1640 | { | |
1641 | struct s2255_dev *dev = to_s2255_dev(kref); | |
14d96260 DA |
1642 | struct list_head *list; |
1643 | int i; | |
38f993ad DA |
1644 | if (!dev) { |
1645 | printk(KERN_ERR "s2255drv: kref problem\n"); | |
1646 | return; | |
1647 | } | |
f78d92c9 DA |
1648 | atomic_set(&dev->fw_data->fw_state, S2255_FW_DISCONNECTING); |
1649 | wake_up(&dev->fw_data->wait_fw); | |
14d96260 DA |
1650 | for (i = 0; i < MAX_CHANNELS; i++) { |
1651 | dev->setmode_ready[i] = 1; | |
1652 | wake_up(&dev->wait_setmode[i]); | |
1653 | } | |
38f993ad | 1654 | mutex_lock(&dev->open_lock); |
14d96260 DA |
1655 | /* reset the DSP so firmware can be reload next time */ |
1656 | s2255_reset_dsppower(dev); | |
38f993ad | 1657 | s2255_exit_v4l(dev); |
38f993ad DA |
1658 | /* board shutdown stops the read pipe if it is running */ |
1659 | s2255_board_shutdown(dev); | |
38f993ad | 1660 | /* make sure firmware still not trying to load */ |
f78d92c9 DA |
1661 | del_timer(&dev->timer); /* only started in .probe and .open */ |
1662 | ||
38f993ad DA |
1663 | if (dev->fw_data->fw_urb) { |
1664 | dprintk(2, "kill fw_urb\n"); | |
1665 | usb_kill_urb(dev->fw_data->fw_urb); | |
1666 | usb_free_urb(dev->fw_data->fw_urb); | |
1667 | dev->fw_data->fw_urb = NULL; | |
1668 | } | |
f78d92c9 DA |
1669 | if (dev->fw_data->fw) |
1670 | release_firmware(dev->fw_data->fw); | |
1671 | kfree(dev->fw_data->pfw_data); | |
1672 | kfree(dev->fw_data); | |
38f993ad DA |
1673 | usb_put_dev(dev->udev); |
1674 | dprintk(1, "%s", __func__); | |
1675 | kfree(dev); | |
14d96260 DA |
1676 | |
1677 | while (!list_empty(&s2255_devlist)) { | |
1678 | list = s2255_devlist.next; | |
1679 | list_del(list); | |
1680 | } | |
1681 | mutex_unlock(&dev->open_lock); | |
38f993ad DA |
1682 | } |
1683 | ||
1684 | static int s2255_close(struct inode *inode, struct file *file) | |
1685 | { | |
1686 | struct s2255_fh *fh = file->private_data; | |
1687 | struct s2255_dev *dev = fh->dev; | |
1688 | int minor = iminor(inode); | |
1689 | if (!dev) | |
1690 | return -ENODEV; | |
1691 | ||
1692 | mutex_lock(&dev->open_lock); | |
1693 | ||
f78d92c9 DA |
1694 | /* turn off stream */ |
1695 | if (res_check(fh)) { | |
1696 | if (dev->b_acquire[fh->channel]) | |
1697 | s2255_stop_acquire(dev, fh->channel); | |
1698 | videobuf_streamoff(&fh->vb_vidq); | |
1699 | res_free(dev, fh); | |
1700 | } | |
1701 | ||
38f993ad | 1702 | videobuf_mmap_free(&fh->vb_vidq); |
38f993ad | 1703 | dev->users[fh->channel]--; |
f78d92c9 | 1704 | |
38f993ad DA |
1705 | mutex_unlock(&dev->open_lock); |
1706 | ||
1707 | kref_put(&dev->kref, s2255_destroy); | |
1708 | dprintk(1, "s2255: close called (minor=%d, users=%d)\n", | |
1709 | minor, dev->users[fh->channel]); | |
f78d92c9 | 1710 | kfree(fh); |
38f993ad DA |
1711 | return 0; |
1712 | } | |
1713 | ||
1714 | static int s2255_mmap_v4l(struct file *file, struct vm_area_struct *vma) | |
1715 | { | |
1716 | struct s2255_fh *fh = file->private_data; | |
1717 | int ret; | |
1718 | ||
1719 | if (!fh) | |
1720 | return -ENODEV; | |
1721 | dprintk(4, "mmap called, vma=0x%08lx\n", (unsigned long)vma); | |
1722 | ||
1723 | ret = videobuf_mmap_mapper(&fh->vb_vidq, vma); | |
1724 | ||
1725 | dprintk(4, "vma start=0x%08lx, size=%ld, ret=%d\n", | |
1726 | (unsigned long)vma->vm_start, | |
1727 | (unsigned long)vma->vm_end - (unsigned long)vma->vm_start, ret); | |
1728 | ||
1729 | return ret; | |
1730 | } | |
1731 | ||
1732 | static const struct file_operations s2255_fops_v4l = { | |
1733 | .owner = THIS_MODULE, | |
1734 | .open = s2255_open, | |
1735 | .release = s2255_close, | |
1736 | .poll = s2255_poll, | |
1737 | .ioctl = video_ioctl2, /* V4L2 ioctl handler */ | |
1738 | .compat_ioctl = v4l_compat_ioctl32, | |
1739 | .mmap = s2255_mmap_v4l, | |
1740 | .llseek = no_llseek, | |
1741 | }; | |
1742 | ||
a399810c | 1743 | static const struct v4l2_ioctl_ops s2255_ioctl_ops = { |
38f993ad DA |
1744 | .vidioc_querycap = vidioc_querycap, |
1745 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, | |
1746 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, | |
1747 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, | |
1748 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, | |
1749 | .vidioc_reqbufs = vidioc_reqbufs, | |
1750 | .vidioc_querybuf = vidioc_querybuf, | |
1751 | .vidioc_qbuf = vidioc_qbuf, | |
1752 | .vidioc_dqbuf = vidioc_dqbuf, | |
1753 | .vidioc_s_std = vidioc_s_std, | |
1754 | .vidioc_enum_input = vidioc_enum_input, | |
1755 | .vidioc_g_input = vidioc_g_input, | |
1756 | .vidioc_s_input = vidioc_s_input, | |
1757 | .vidioc_queryctrl = vidioc_queryctrl, | |
1758 | .vidioc_g_ctrl = vidioc_g_ctrl, | |
1759 | .vidioc_s_ctrl = vidioc_s_ctrl, | |
1760 | .vidioc_streamon = vidioc_streamon, | |
1761 | .vidioc_streamoff = vidioc_streamoff, | |
1762 | #ifdef CONFIG_VIDEO_V4L1_COMPAT | |
1763 | .vidiocgmbuf = vidioc_cgmbuf, | |
1764 | #endif | |
a399810c HV |
1765 | }; |
1766 | ||
1767 | static struct video_device template = { | |
1768 | .name = "s2255v", | |
a399810c HV |
1769 | .fops = &s2255_fops_v4l, |
1770 | .ioctl_ops = &s2255_ioctl_ops, | |
1771 | .minor = -1, | |
1772 | .release = video_device_release, | |
38f993ad DA |
1773 | .tvnorms = S2255_NORMS, |
1774 | .current_norm = V4L2_STD_NTSC_M, | |
1775 | }; | |
1776 | ||
1777 | static int s2255_probe_v4l(struct s2255_dev *dev) | |
1778 | { | |
1779 | int ret; | |
1780 | int i; | |
1781 | int cur_nr = video_nr; | |
1782 | ||
1783 | /* initialize all video 4 linux */ | |
1784 | list_add_tail(&dev->s2255_devlist, &s2255_devlist); | |
1785 | /* register 4 video devices */ | |
1786 | for (i = 0; i < MAX_CHANNELS; i++) { | |
1787 | INIT_LIST_HEAD(&dev->vidq[i].active); | |
1788 | dev->vidq[i].dev = dev; | |
1789 | dev->vidq[i].channel = i; | |
1790 | dev->vidq[i].kthread = NULL; | |
1791 | /* register 4 video devices */ | |
1792 | dev->vdev[i] = video_device_alloc(); | |
1793 | memcpy(dev->vdev[i], &template, sizeof(struct video_device)); | |
5e85e732 | 1794 | dev->vdev[i]->parent = &dev->interface->dev; |
38f993ad DA |
1795 | if (video_nr == -1) |
1796 | ret = video_register_device(dev->vdev[i], | |
1797 | VFL_TYPE_GRABBER, | |
1798 | video_nr); | |
1799 | else | |
1800 | ret = video_register_device(dev->vdev[i], | |
1801 | VFL_TYPE_GRABBER, | |
1802 | cur_nr + i); | |
1803 | dev->vdev[i]->priv = dev; | |
1804 | ||
1805 | if (ret != 0) { | |
1806 | dev_err(&dev->udev->dev, | |
1807 | "failed to register video device!\n"); | |
1808 | return ret; | |
1809 | } | |
1810 | } | |
1811 | printk(KERN_INFO "Sensoray 2255 V4L driver\n"); | |
1812 | return ret; | |
1813 | } | |
1814 | ||
1815 | static void s2255_exit_v4l(struct s2255_dev *dev) | |
1816 | { | |
14d96260 | 1817 | |
38f993ad | 1818 | int i; |
38f993ad | 1819 | for (i = 0; i < MAX_CHANNELS; i++) { |
14d96260 | 1820 | if (-1 != dev->vdev[i]->minor) { |
38f993ad | 1821 | video_unregister_device(dev->vdev[i]); |
14d96260 DA |
1822 | printk(KERN_INFO "s2255 unregistered\n"); |
1823 | } else { | |
38f993ad | 1824 | video_device_release(dev->vdev[i]); |
14d96260 DA |
1825 | printk(KERN_INFO "s2255 released\n"); |
1826 | } | |
38f993ad DA |
1827 | } |
1828 | } | |
1829 | ||
1830 | /* this function moves the usb stream read pipe data | |
1831 | * into the system buffers. | |
1832 | * returns 0 on success, EAGAIN if more data to process( call this | |
1833 | * function again). | |
1834 | * | |
1835 | * Received frame structure: | |
14d96260 | 1836 | * bytes 0-3: marker : 0x2255DA4AL (S2255_MARKER_FRAME) |
38f993ad DA |
1837 | * bytes 4-7: channel: 0-3 |
1838 | * bytes 8-11: payload size: size of the frame | |
1839 | * bytes 12-payloadsize+12: frame data | |
1840 | */ | |
1841 | static int save_frame(struct s2255_dev *dev, struct s2255_pipeinfo *pipe_info) | |
1842 | { | |
38f993ad DA |
1843 | char *pdest; |
1844 | u32 offset = 0; | |
14d96260 | 1845 | int bframe = 0; |
38f993ad DA |
1846 | char *psrc; |
1847 | unsigned long copy_size; | |
1848 | unsigned long size; | |
1849 | s32 idx = -1; | |
1850 | struct s2255_framei *frm; | |
1851 | unsigned char *pdata; | |
14d96260 | 1852 | |
38f993ad DA |
1853 | dprintk(100, "buffer to user\n"); |
1854 | ||
1855 | idx = dev->cur_frame[dev->cc]; | |
14d96260 | 1856 | frm = &dev->buffer[dev->cc].frame[idx]; |
38f993ad | 1857 | |
14d96260 DA |
1858 | if (frm->ulState == S2255_READ_IDLE) { |
1859 | int jj; | |
1860 | unsigned int cc; | |
1861 | s32 *pdword; | |
1862 | int payload; | |
1863 | /* search for marker codes */ | |
1864 | pdata = (unsigned char *)pipe_info->transfer_buffer; | |
1865 | for (jj = 0; jj < (pipe_info->cur_transfer_size - 12); jj++) { | |
1866 | switch (*(s32 *) pdata) { | |
1867 | case S2255_MARKER_FRAME: | |
1868 | pdword = (s32 *)pdata; | |
1869 | dprintk(4, "found frame marker at offset:" | |
1870 | " %d [%x %x]\n", jj, pdata[0], | |
1871 | pdata[1]); | |
1872 | offset = jj + PREFIX_SIZE; | |
1873 | bframe = 1; | |
1874 | cc = pdword[1]; | |
1875 | if (cc >= MAX_CHANNELS) { | |
1876 | printk(KERN_ERR | |
1877 | "bad channel\n"); | |
1878 | return -EINVAL; | |
1879 | } | |
1880 | /* reverse it */ | |
1881 | dev->cc = G_chnmap[cc]; | |
1882 | payload = pdword[3]; | |
1883 | if (payload > dev->req_image_size[dev->cc]) { | |
1884 | dev->bad_payload[dev->cc]++; | |
1885 | /* discard the bad frame */ | |
1886 | return -EINVAL; | |
1887 | } | |
1888 | dev->pkt_size[dev->cc] = payload; | |
1889 | dev->jpg_size[dev->cc] = pdword[4]; | |
1890 | break; | |
1891 | case S2255_MARKER_RESPONSE: | |
1892 | pdword = (s32 *)pdata; | |
1893 | pdata += DEF_USB_BLOCK; | |
1894 | jj += DEF_USB_BLOCK; | |
1895 | if (pdword[1] >= MAX_CHANNELS) | |
1896 | break; | |
1897 | cc = G_chnmap[pdword[1]]; | |
1898 | if (!(cc >= 0 && cc < MAX_CHANNELS)) | |
1899 | break; | |
1900 | switch (pdword[2]) { | |
1901 | case 0x01: | |
1902 | /* check if channel valid */ | |
1903 | /* set mode ready */ | |
1904 | dev->setmode_ready[cc] = 1; | |
1905 | wake_up(&dev->wait_setmode[cc]); | |
1906 | dprintk(5, "setmode ready %d\n", cc); | |
38f993ad | 1907 | break; |
14d96260 DA |
1908 | case 0x10: |
1909 | ||
1910 | dev->chn_ready |= (1 << cc); | |
1911 | if ((dev->chn_ready & 0x0f) != 0x0f) | |
1912 | break; | |
1913 | /* all channels ready */ | |
1914 | printk(KERN_INFO "s2255: fw loaded\n"); | |
1915 | atomic_set(&dev->fw_data->fw_state, | |
1916 | S2255_FW_SUCCESS); | |
1917 | wake_up(&dev->fw_data->wait_fw); | |
1918 | break; | |
1919 | default: | |
1920 | printk(KERN_INFO "s2255 unknwn resp\n"); | |
38f993ad | 1921 | } |
14d96260 | 1922 | default: |
38f993ad | 1923 | pdata++; |
14d96260 | 1924 | break; |
38f993ad | 1925 | } |
14d96260 DA |
1926 | if (bframe) |
1927 | break; | |
1928 | } /* for */ | |
1929 | if (!bframe) | |
1930 | return -EINVAL; | |
38f993ad DA |
1931 | } |
1932 | ||
14d96260 | 1933 | |
38f993ad DA |
1934 | idx = dev->cur_frame[dev->cc]; |
1935 | frm = &dev->buffer[dev->cc].frame[idx]; | |
1936 | ||
14d96260 DA |
1937 | /* search done. now find out if should be acquiring on this channel */ |
1938 | if (!dev->b_acquire[dev->cc]) { | |
1939 | /* we found a frame, but this channel is turned off */ | |
1940 | frm->ulState = S2255_READ_IDLE; | |
1941 | return -EINVAL; | |
38f993ad DA |
1942 | } |
1943 | ||
14d96260 DA |
1944 | if (frm->ulState == S2255_READ_IDLE) { |
1945 | frm->ulState = S2255_READ_FRAME; | |
1946 | frm->cur_size = 0; | |
38f993ad DA |
1947 | } |
1948 | ||
14d96260 DA |
1949 | /* skip the marker 512 bytes (and offset if out of sync) */ |
1950 | psrc = (u8 *)pipe_info->transfer_buffer + offset; | |
1951 | ||
1952 | ||
38f993ad DA |
1953 | if (frm->lpvbits == NULL) { |
1954 | dprintk(1, "s2255 frame buffer == NULL.%p %p %d %d", | |
1955 | frm, dev, dev->cc, idx); | |
1956 | return -ENOMEM; | |
1957 | } | |
1958 | ||
1959 | pdest = frm->lpvbits + frm->cur_size; | |
1960 | ||
14d96260 | 1961 | copy_size = (pipe_info->cur_transfer_size - offset); |
38f993ad | 1962 | |
14d96260 | 1963 | size = dev->pkt_size[dev->cc] - PREFIX_SIZE; |
38f993ad | 1964 | |
14d96260 DA |
1965 | /* sanity check on pdest */ |
1966 | if ((copy_size + frm->cur_size) < dev->req_image_size[dev->cc]) | |
1967 | memcpy(pdest, psrc, copy_size); | |
38f993ad | 1968 | |
38f993ad | 1969 | frm->cur_size += copy_size; |
14d96260 DA |
1970 | dprintk(4, "cur_size size %lu size %lu \n", frm->cur_size, size); |
1971 | ||
1972 | if (frm->cur_size >= size) { | |
38f993ad | 1973 | |
38f993ad | 1974 | u32 cc = dev->cc; |
38f993ad DA |
1975 | dprintk(2, "****************[%d]Buffer[%d]full*************\n", |
1976 | cc, idx); | |
1977 | dev->last_frame[cc] = dev->cur_frame[cc]; | |
1978 | dev->cur_frame[cc]++; | |
1979 | /* end of system frame ring buffer, start at zero */ | |
1980 | if ((dev->cur_frame[cc] == SYS_FRAMES) || | |
1981 | (dev->cur_frame[cc] == dev->buffer[cc].dwFrames)) | |
1982 | dev->cur_frame[cc] = 0; | |
14d96260 | 1983 | /* frame ready */ |
38f993ad | 1984 | if (dev->b_acquire[cc]) |
14d96260 | 1985 | s2255_got_frame(dev, cc, dev->jpg_size[cc]); |
38f993ad | 1986 | dev->frame_count[cc]++; |
14d96260 DA |
1987 | frm->ulState = S2255_READ_IDLE; |
1988 | frm->cur_size = 0; | |
1989 | ||
38f993ad DA |
1990 | } |
1991 | /* done successfully */ | |
1992 | return 0; | |
1993 | } | |
1994 | ||
1995 | static void s2255_read_video_callback(struct s2255_dev *dev, | |
1996 | struct s2255_pipeinfo *pipe_info) | |
1997 | { | |
1998 | int res; | |
1999 | dprintk(50, "callback read video \n"); | |
2000 | ||
2001 | if (dev->cc >= MAX_CHANNELS) { | |
2002 | dev->cc = 0; | |
2003 | dev_err(&dev->udev->dev, "invalid channel\n"); | |
2004 | return; | |
2005 | } | |
2006 | /* otherwise copy to the system buffers */ | |
2007 | res = save_frame(dev, pipe_info); | |
14d96260 DA |
2008 | if (res != 0) |
2009 | dprintk(4, "s2255: read callback failed\n"); | |
38f993ad DA |
2010 | |
2011 | dprintk(50, "callback read video done\n"); | |
2012 | return; | |
2013 | } | |
2014 | ||
2015 | static long s2255_vendor_req(struct s2255_dev *dev, unsigned char Request, | |
2016 | u16 Index, u16 Value, void *TransferBuffer, | |
2017 | s32 TransferBufferLength, int bOut) | |
2018 | { | |
2019 | int r; | |
2020 | if (!bOut) { | |
2021 | r = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), | |
2022 | Request, | |
2023 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | | |
2024 | USB_DIR_IN, | |
2025 | Value, Index, TransferBuffer, | |
2026 | TransferBufferLength, HZ * 5); | |
2027 | } else { | |
2028 | r = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), | |
2029 | Request, USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
2030 | Value, Index, TransferBuffer, | |
2031 | TransferBufferLength, HZ * 5); | |
2032 | } | |
2033 | return r; | |
2034 | } | |
2035 | ||
2036 | /* | |
2037 | * retrieve FX2 firmware version. future use. | |
2038 | * @param dev pointer to device extension | |
2039 | * @return -1 for fail, else returns firmware version as an int(16 bits) | |
2040 | */ | |
2041 | static int s2255_get_fx2fw(struct s2255_dev *dev) | |
2042 | { | |
2043 | int fw; | |
2044 | int ret; | |
2045 | unsigned char transBuffer[64]; | |
2046 | ret = s2255_vendor_req(dev, S2255_VR_FW, 0, 0, transBuffer, 2, | |
2047 | S2255_VR_IN); | |
2048 | if (ret < 0) | |
2049 | dprintk(2, "get fw error: %x\n", ret); | |
2050 | fw = transBuffer[0] + (transBuffer[1] << 8); | |
2051 | dprintk(2, "Get FW %x %x\n", transBuffer[0], transBuffer[1]); | |
2052 | return fw; | |
2053 | } | |
2054 | ||
2055 | /* | |
2056 | * Create the system ring buffer to copy frames into from the | |
2057 | * usb read pipe. | |
2058 | */ | |
2059 | static int s2255_create_sys_buffers(struct s2255_dev *dev, unsigned long chn) | |
2060 | { | |
2061 | unsigned long i; | |
2062 | unsigned long reqsize; | |
2063 | dprintk(1, "create sys buffers\n"); | |
2064 | if (chn >= MAX_CHANNELS) | |
2065 | return -1; | |
2066 | ||
2067 | dev->buffer[chn].dwFrames = SYS_FRAMES; | |
2068 | ||
2069 | /* always allocate maximum size(PAL) for system buffers */ | |
2070 | reqsize = SYS_FRAMES_MAXSIZE; | |
2071 | ||
2072 | if (reqsize > SYS_FRAMES_MAXSIZE) | |
2073 | reqsize = SYS_FRAMES_MAXSIZE; | |
2074 | ||
2075 | for (i = 0; i < SYS_FRAMES; i++) { | |
2076 | /* allocate the frames */ | |
2077 | dev->buffer[chn].frame[i].lpvbits = vmalloc(reqsize); | |
2078 | ||
2079 | dprintk(1, "valloc %p chan %lu, idx %lu, pdata %p\n", | |
2080 | &dev->buffer[chn].frame[i], chn, i, | |
2081 | dev->buffer[chn].frame[i].lpvbits); | |
2082 | dev->buffer[chn].frame[i].size = reqsize; | |
2083 | if (dev->buffer[chn].frame[i].lpvbits == NULL) { | |
2084 | printk(KERN_INFO "out of memory. using less frames\n"); | |
2085 | dev->buffer[chn].dwFrames = i; | |
2086 | break; | |
2087 | } | |
2088 | } | |
2089 | ||
2090 | /* make sure internal states are set */ | |
2091 | for (i = 0; i < SYS_FRAMES; i++) { | |
2092 | dev->buffer[chn].frame[i].ulState = 0; | |
2093 | dev->buffer[chn].frame[i].cur_size = 0; | |
2094 | } | |
2095 | ||
2096 | dev->cur_frame[chn] = 0; | |
2097 | dev->last_frame[chn] = -1; | |
2098 | return 0; | |
2099 | } | |
2100 | ||
2101 | static int s2255_release_sys_buffers(struct s2255_dev *dev, | |
2102 | unsigned long channel) | |
2103 | { | |
2104 | unsigned long i; | |
2105 | dprintk(1, "release sys buffers\n"); | |
2106 | for (i = 0; i < SYS_FRAMES; i++) { | |
2107 | if (dev->buffer[channel].frame[i].lpvbits) { | |
2108 | dprintk(1, "vfree %p\n", | |
2109 | dev->buffer[channel].frame[i].lpvbits); | |
2110 | vfree(dev->buffer[channel].frame[i].lpvbits); | |
2111 | } | |
2112 | dev->buffer[channel].frame[i].lpvbits = NULL; | |
2113 | } | |
2114 | return 0; | |
2115 | } | |
2116 | ||
2117 | static int s2255_board_init(struct s2255_dev *dev) | |
2118 | { | |
2119 | int j; | |
2120 | struct s2255_mode mode_def = DEF_MODEI_NTSC_CONT; | |
2121 | int fw_ver; | |
2122 | dprintk(4, "board init: %p", dev); | |
2123 | ||
2124 | for (j = 0; j < MAX_PIPE_BUFFERS; j++) { | |
2125 | struct s2255_pipeinfo *pipe = &dev->pipes[j]; | |
2126 | ||
2127 | memset(pipe, 0, sizeof(*pipe)); | |
2128 | pipe->dev = dev; | |
14d96260 DA |
2129 | pipe->cur_transfer_size = S2255_USB_XFER_SIZE; |
2130 | pipe->max_transfer_size = S2255_USB_XFER_SIZE; | |
38f993ad | 2131 | |
38f993ad DA |
2132 | pipe->transfer_buffer = kzalloc(pipe->max_transfer_size, |
2133 | GFP_KERNEL); | |
2134 | if (pipe->transfer_buffer == NULL) { | |
2135 | dprintk(1, "out of memory!\n"); | |
2136 | return -ENOMEM; | |
2137 | } | |
2138 | ||
2139 | } | |
2140 | ||
2141 | /* query the firmware */ | |
2142 | fw_ver = s2255_get_fx2fw(dev); | |
2143 | ||
2144 | printk(KERN_INFO "2255 usb firmware version %d \n", fw_ver); | |
2145 | if (fw_ver < CUR_USB_FWVER) | |
2146 | err("usb firmware not up to date %d\n", fw_ver); | |
2147 | ||
2148 | for (j = 0; j < MAX_CHANNELS; j++) { | |
2149 | dev->b_acquire[j] = 0; | |
2150 | dev->mode[j] = mode_def; | |
2151 | dev->cur_fmt[j] = &formats[0]; | |
2152 | dev->mode[j].restart = 1; | |
2153 | dev->req_image_size[j] = get_transfer_size(&mode_def); | |
2154 | dev->frame_count[j] = 0; | |
2155 | /* create the system buffers */ | |
2156 | s2255_create_sys_buffers(dev, j); | |
2157 | } | |
2158 | /* start read pipe */ | |
2159 | s2255_start_readpipe(dev); | |
2160 | ||
2161 | dprintk(1, "S2255: board initialized\n"); | |
2162 | return 0; | |
2163 | } | |
2164 | ||
2165 | static int s2255_board_shutdown(struct s2255_dev *dev) | |
2166 | { | |
2167 | u32 i; | |
2168 | ||
2169 | dprintk(1, "S2255: board shutdown: %p", dev); | |
2170 | ||
2171 | for (i = 0; i < MAX_CHANNELS; i++) { | |
2172 | if (dev->b_acquire[i]) | |
2173 | s2255_stop_acquire(dev, i); | |
2174 | } | |
2175 | ||
2176 | s2255_stop_readpipe(dev); | |
2177 | ||
2178 | for (i = 0; i < MAX_CHANNELS; i++) | |
2179 | s2255_release_sys_buffers(dev, i); | |
2180 | ||
2181 | /* release transfer buffers */ | |
2182 | for (i = 0; i < MAX_PIPE_BUFFERS; i++) { | |
2183 | struct s2255_pipeinfo *pipe = &dev->pipes[i]; | |
2184 | kfree(pipe->transfer_buffer); | |
2185 | } | |
2186 | return 0; | |
2187 | } | |
2188 | ||
2189 | static void read_pipe_completion(struct urb *purb) | |
2190 | { | |
2191 | struct s2255_pipeinfo *pipe_info; | |
2192 | struct s2255_dev *dev; | |
2193 | int status; | |
2194 | int pipe; | |
2195 | ||
2196 | pipe_info = purb->context; | |
2197 | dprintk(100, "read pipe completion %p, status %d\n", purb, | |
2198 | purb->status); | |
2199 | if (pipe_info == NULL) { | |
2200 | err("no context !"); | |
2201 | return; | |
2202 | } | |
2203 | ||
2204 | dev = pipe_info->dev; | |
2205 | if (dev == NULL) { | |
2206 | err("no context !"); | |
2207 | return; | |
2208 | } | |
2209 | status = purb->status; | |
2210 | if (status != 0) { | |
2211 | dprintk(2, "read_pipe_completion: err\n"); | |
2212 | return; | |
2213 | } | |
2214 | ||
2215 | if (pipe_info->state == 0) { | |
2216 | dprintk(2, "exiting USB pipe"); | |
2217 | return; | |
2218 | } | |
2219 | ||
2220 | s2255_read_video_callback(dev, pipe_info); | |
2221 | ||
2222 | pipe_info->err_count = 0; | |
2223 | pipe = usb_rcvbulkpipe(dev->udev, dev->read_endpoint); | |
2224 | /* reuse urb */ | |
2225 | usb_fill_bulk_urb(pipe_info->stream_urb, dev->udev, | |
2226 | pipe, | |
2227 | pipe_info->transfer_buffer, | |
2228 | pipe_info->cur_transfer_size, | |
2229 | read_pipe_completion, pipe_info); | |
2230 | ||
2231 | if (pipe_info->state != 0) { | |
2232 | if (usb_submit_urb(pipe_info->stream_urb, GFP_KERNEL)) { | |
2233 | dev_err(&dev->udev->dev, "error submitting urb\n"); | |
2234 | usb_free_urb(pipe_info->stream_urb); | |
2235 | } | |
2236 | } else { | |
2237 | dprintk(2, "read pipe complete state 0\n"); | |
2238 | } | |
2239 | return; | |
2240 | } | |
2241 | ||
2242 | static int s2255_start_readpipe(struct s2255_dev *dev) | |
2243 | { | |
2244 | int pipe; | |
2245 | int retval; | |
2246 | int i; | |
2247 | struct s2255_pipeinfo *pipe_info = dev->pipes; | |
2248 | pipe = usb_rcvbulkpipe(dev->udev, dev->read_endpoint); | |
2249 | dprintk(2, "start pipe IN %d\n", dev->read_endpoint); | |
2250 | ||
2251 | for (i = 0; i < MAX_PIPE_BUFFERS; i++) { | |
2252 | pipe_info->state = 1; | |
2253 | pipe_info->buf_index = (u32) i; | |
2254 | pipe_info->priority_set = 0; | |
2255 | pipe_info->stream_urb = usb_alloc_urb(0, GFP_KERNEL); | |
2256 | if (!pipe_info->stream_urb) { | |
2257 | dev_err(&dev->udev->dev, | |
2258 | "ReadStream: Unable to alloc URB"); | |
2259 | return -ENOMEM; | |
2260 | } | |
2261 | /* transfer buffer allocated in board_init */ | |
2262 | usb_fill_bulk_urb(pipe_info->stream_urb, dev->udev, | |
2263 | pipe, | |
2264 | pipe_info->transfer_buffer, | |
2265 | pipe_info->cur_transfer_size, | |
2266 | read_pipe_completion, pipe_info); | |
2267 | ||
2268 | pipe_info->urb_size = sizeof(pipe_info->stream_urb); | |
2269 | dprintk(4, "submitting URB %p\n", pipe_info->stream_urb); | |
2270 | retval = usb_submit_urb(pipe_info->stream_urb, GFP_KERNEL); | |
2271 | if (retval) { | |
2272 | printk(KERN_ERR "s2255: start read pipe failed\n"); | |
2273 | return retval; | |
2274 | } | |
2275 | } | |
2276 | ||
2277 | return 0; | |
2278 | } | |
2279 | ||
2280 | /* starts acquisition process */ | |
2281 | static int s2255_start_acquire(struct s2255_dev *dev, unsigned long chn) | |
2282 | { | |
2283 | unsigned char *buffer; | |
2284 | int res; | |
2285 | unsigned long chn_rev; | |
2286 | int j; | |
2287 | if (chn >= MAX_CHANNELS) { | |
2288 | dprintk(2, "start acquire failed, bad channel %lu\n", chn); | |
2289 | return -1; | |
2290 | } | |
2291 | ||
2292 | chn_rev = G_chnmap[chn]; | |
2293 | dprintk(1, "S2255: start acquire %lu \n", chn); | |
2294 | ||
2295 | buffer = kzalloc(512, GFP_KERNEL); | |
2296 | if (buffer == NULL) { | |
2297 | dev_err(&dev->udev->dev, "out of mem\n"); | |
2298 | return -ENOMEM; | |
2299 | } | |
2300 | ||
2301 | dev->last_frame[chn] = -1; | |
2302 | dev->bad_payload[chn] = 0; | |
2303 | dev->cur_frame[chn] = 0; | |
2304 | for (j = 0; j < SYS_FRAMES; j++) { | |
2305 | dev->buffer[chn].frame[j].ulState = 0; | |
2306 | dev->buffer[chn].frame[j].cur_size = 0; | |
2307 | } | |
2308 | ||
2309 | /* send the start command */ | |
2310 | *(u32 *) buffer = IN_DATA_TOKEN; | |
2311 | *((u32 *) buffer + 1) = (u32) chn_rev; | |
2312 | *((u32 *) buffer + 2) = (u32) CMD_START; | |
2313 | res = s2255_write_config(dev->udev, (unsigned char *)buffer, 512); | |
2314 | if (res != 0) | |
2315 | dev_err(&dev->udev->dev, "CMD_START error\n"); | |
2316 | ||
2317 | dprintk(2, "start acquire exit[%lu] %d \n", chn, res); | |
2318 | kfree(buffer); | |
2319 | return 0; | |
2320 | } | |
2321 | ||
2322 | static int s2255_stop_acquire(struct s2255_dev *dev, unsigned long chn) | |
2323 | { | |
2324 | unsigned char *buffer; | |
2325 | int res; | |
2326 | unsigned long chn_rev; | |
2327 | ||
2328 | if (chn >= MAX_CHANNELS) { | |
2329 | dprintk(2, "stop acquire failed, bad channel %lu\n", chn); | |
2330 | return -1; | |
2331 | } | |
2332 | chn_rev = G_chnmap[chn]; | |
2333 | ||
2334 | buffer = kzalloc(512, GFP_KERNEL); | |
2335 | if (buffer == NULL) { | |
2336 | dev_err(&dev->udev->dev, "out of mem\n"); | |
2337 | return -ENOMEM; | |
2338 | } | |
2339 | ||
2340 | /* send the stop command */ | |
2341 | dprintk(4, "stop acquire %lu\n", chn); | |
2342 | *(u32 *) buffer = IN_DATA_TOKEN; | |
2343 | *((u32 *) buffer + 1) = (u32) chn_rev; | |
2344 | *((u32 *) buffer + 2) = CMD_STOP; | |
2345 | res = s2255_write_config(dev->udev, (unsigned char *)buffer, 512); | |
2346 | ||
2347 | if (res != 0) | |
2348 | dev_err(&dev->udev->dev, "CMD_STOP error\n"); | |
2349 | ||
2350 | dprintk(4, "stop acquire: releasing states \n"); | |
2351 | ||
2352 | kfree(buffer); | |
2353 | dev->b_acquire[chn] = 0; | |
2354 | ||
14d96260 | 2355 | return res; |
38f993ad DA |
2356 | } |
2357 | ||
2358 | static void s2255_stop_readpipe(struct s2255_dev *dev) | |
2359 | { | |
2360 | int j; | |
2361 | ||
2362 | if (dev == NULL) { | |
2363 | err("s2255: invalid device"); | |
2364 | return; | |
2365 | } | |
2366 | dprintk(4, "stop read pipe\n"); | |
2367 | for (j = 0; j < MAX_PIPE_BUFFERS; j++) { | |
2368 | struct s2255_pipeinfo *pipe_info = &dev->pipes[j]; | |
2369 | if (pipe_info) { | |
2370 | if (pipe_info->state == 0) | |
2371 | continue; | |
2372 | pipe_info->state = 0; | |
2373 | pipe_info->prev_state = 1; | |
2374 | ||
2375 | } | |
2376 | } | |
2377 | ||
2378 | for (j = 0; j < MAX_PIPE_BUFFERS; j++) { | |
2379 | struct s2255_pipeinfo *pipe_info = &dev->pipes[j]; | |
2380 | if (pipe_info->stream_urb) { | |
2381 | /* cancel urb */ | |
2382 | usb_kill_urb(pipe_info->stream_urb); | |
2383 | usb_free_urb(pipe_info->stream_urb); | |
2384 | pipe_info->stream_urb = NULL; | |
2385 | } | |
2386 | } | |
2387 | dprintk(2, "s2255 stop read pipe: %d\n", j); | |
2388 | return; | |
2389 | } | |
2390 | ||
14d96260 | 2391 | static void s2255_fwload_start(struct s2255_dev *dev, int reset) |
38f993ad | 2392 | { |
14d96260 DA |
2393 | if (reset) |
2394 | s2255_reset_dsppower(dev); | |
38f993ad DA |
2395 | dev->fw_data->fw_size = dev->fw_data->fw->size; |
2396 | atomic_set(&dev->fw_data->fw_state, S2255_FW_NOTLOADED); | |
2397 | memcpy(dev->fw_data->pfw_data, | |
2398 | dev->fw_data->fw->data, CHUNK_SIZE); | |
2399 | dev->fw_data->fw_loaded = CHUNK_SIZE; | |
2400 | usb_fill_bulk_urb(dev->fw_data->fw_urb, dev->udev, | |
2401 | usb_sndbulkpipe(dev->udev, 2), | |
2402 | dev->fw_data->pfw_data, | |
2403 | CHUNK_SIZE, s2255_fwchunk_complete, | |
2404 | dev->fw_data); | |
2405 | mod_timer(&dev->timer, jiffies + HZ); | |
2406 | } | |
2407 | ||
2408 | /* standard usb probe function */ | |
2409 | static int s2255_probe(struct usb_interface *interface, | |
2410 | const struct usb_device_id *id) | |
2411 | { | |
2412 | struct s2255_dev *dev = NULL; | |
2413 | struct usb_host_interface *iface_desc; | |
2414 | struct usb_endpoint_descriptor *endpoint; | |
2415 | int i; | |
2416 | int retval = -ENOMEM; | |
14d96260 DA |
2417 | __le32 *pdata; |
2418 | int fw_size; | |
38f993ad DA |
2419 | |
2420 | dprintk(2, "s2255: probe\n"); | |
2421 | ||
2422 | /* allocate memory for our device state and initialize it to zero */ | |
2423 | dev = kzalloc(sizeof(struct s2255_dev), GFP_KERNEL); | |
2424 | if (dev == NULL) { | |
2425 | err("s2255: out of memory"); | |
2426 | goto error; | |
2427 | } | |
2428 | ||
2429 | dev->fw_data = kzalloc(sizeof(struct s2255_fw), GFP_KERNEL); | |
2430 | if (!dev->fw_data) | |
2431 | goto error; | |
2432 | ||
2433 | mutex_init(&dev->lock); | |
2434 | mutex_init(&dev->open_lock); | |
2435 | ||
2436 | /* grab usb_device and save it */ | |
2437 | dev->udev = usb_get_dev(interface_to_usbdev(interface)); | |
2438 | if (dev->udev == NULL) { | |
2439 | dev_err(&interface->dev, "null usb device\n"); | |
2440 | retval = -ENODEV; | |
2441 | goto error; | |
2442 | } | |
2443 | kref_init(&dev->kref); | |
2444 | dprintk(1, "dev: %p, kref: %p udev %p interface %p\n", dev, &dev->kref, | |
2445 | dev->udev, interface); | |
2446 | dev->interface = interface; | |
2447 | /* set up the endpoint information */ | |
2448 | iface_desc = interface->cur_altsetting; | |
2449 | dprintk(1, "num endpoints %d\n", iface_desc->desc.bNumEndpoints); | |
2450 | for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { | |
2451 | endpoint = &iface_desc->endpoint[i].desc; | |
2452 | if (!dev->read_endpoint && usb_endpoint_is_bulk_in(endpoint)) { | |
2453 | /* we found the bulk in endpoint */ | |
2454 | dev->read_endpoint = endpoint->bEndpointAddress; | |
2455 | } | |
2456 | } | |
2457 | ||
2458 | if (!dev->read_endpoint) { | |
2459 | dev_err(&interface->dev, "Could not find bulk-in endpoint"); | |
2460 | goto error; | |
2461 | } | |
2462 | ||
2463 | /* set intfdata */ | |
2464 | usb_set_intfdata(interface, dev); | |
2465 | ||
2466 | dprintk(100, "after intfdata %p\n", dev); | |
2467 | ||
2468 | init_timer(&dev->timer); | |
2469 | dev->timer.function = s2255_timer; | |
2470 | dev->timer.data = (unsigned long)dev->fw_data; | |
2471 | ||
2472 | init_waitqueue_head(&dev->fw_data->wait_fw); | |
14d96260 DA |
2473 | for (i = 0; i < MAX_CHANNELS; i++) |
2474 | init_waitqueue_head(&dev->wait_setmode[i]); | |
38f993ad DA |
2475 | |
2476 | ||
2477 | dev->fw_data->fw_urb = usb_alloc_urb(0, GFP_KERNEL); | |
2478 | ||
2479 | if (!dev->fw_data->fw_urb) { | |
2480 | dev_err(&interface->dev, "out of memory!\n"); | |
2481 | goto error; | |
2482 | } | |
2483 | dev->fw_data->pfw_data = kzalloc(CHUNK_SIZE, GFP_KERNEL); | |
2484 | if (!dev->fw_data->pfw_data) { | |
2485 | dev_err(&interface->dev, "out of memory!\n"); | |
2486 | goto error; | |
2487 | } | |
2488 | /* load the first chunk */ | |
2489 | if (request_firmware(&dev->fw_data->fw, | |
2490 | FIRMWARE_FILE_NAME, &dev->udev->dev)) { | |
2491 | printk(KERN_ERR "sensoray 2255 failed to get firmware\n"); | |
2492 | goto error; | |
2493 | } | |
14d96260 DA |
2494 | /* check the firmware is valid */ |
2495 | fw_size = dev->fw_data->fw->size; | |
2496 | pdata = (__le32 *) &dev->fw_data->fw->data[fw_size - 8]; | |
38f993ad | 2497 | |
14d96260 DA |
2498 | if (*pdata != S2255_FW_MARKER) { |
2499 | printk(KERN_INFO "Firmware invalid.\n"); | |
2500 | retval = -ENODEV; | |
2501 | goto error; | |
2502 | } else { | |
2503 | /* make sure firmware is the latest */ | |
2504 | __le32 *pRel; | |
2505 | pRel = (__le32 *) &dev->fw_data->fw->data[fw_size - 4]; | |
2506 | printk(KERN_INFO "s2255 dsp fw version %x\n", *pRel); | |
2507 | } | |
38f993ad DA |
2508 | /* loads v4l specific */ |
2509 | s2255_probe_v4l(dev); | |
14d96260 | 2510 | usb_reset_device(dev->udev); |
38f993ad DA |
2511 | /* load 2255 board specific */ |
2512 | s2255_board_init(dev); | |
2513 | ||
2514 | dprintk(4, "before probe done %p\n", dev); | |
2515 | spin_lock_init(&dev->slock); | |
2516 | ||
14d96260 | 2517 | s2255_fwload_start(dev, 0); |
38f993ad DA |
2518 | dev_info(&interface->dev, "Sensoray 2255 detected\n"); |
2519 | return 0; | |
2520 | error: | |
2521 | return retval; | |
2522 | } | |
2523 | ||
2524 | /* disconnect routine. when board is removed physically or with rmmod */ | |
2525 | static void s2255_disconnect(struct usb_interface *interface) | |
2526 | { | |
2527 | struct s2255_dev *dev = NULL; | |
14d96260 | 2528 | int i; |
38f993ad DA |
2529 | dprintk(1, "s2255: disconnect interface %p\n", interface); |
2530 | dev = usb_get_intfdata(interface); | |
14d96260 DA |
2531 | |
2532 | /* | |
2533 | * wake up any of the timers to allow open_lock to be | |
2534 | * acquired sooner | |
2535 | */ | |
2536 | atomic_set(&dev->fw_data->fw_state, S2255_FW_DISCONNECTING); | |
2537 | wake_up(&dev->fw_data->wait_fw); | |
2538 | for (i = 0; i < MAX_CHANNELS; i++) { | |
2539 | dev->setmode_ready[i] = 1; | |
2540 | wake_up(&dev->wait_setmode[i]); | |
2541 | } | |
2542 | ||
2543 | mutex_lock(&dev->open_lock); | |
2544 | usb_set_intfdata(interface, NULL); | |
2545 | mutex_unlock(&dev->open_lock); | |
2546 | ||
38f993ad DA |
2547 | if (dev) { |
2548 | kref_put(&dev->kref, s2255_destroy); | |
2549 | dprintk(1, "s2255drv: disconnect\n"); | |
2550 | dev_info(&interface->dev, "s2255usb now disconnected\n"); | |
2551 | } | |
38f993ad DA |
2552 | } |
2553 | ||
2554 | static struct usb_driver s2255_driver = { | |
2555 | .name = "s2255", | |
2556 | .probe = s2255_probe, | |
2557 | .disconnect = s2255_disconnect, | |
2558 | .id_table = s2255_table, | |
2559 | }; | |
2560 | ||
2561 | static int __init usb_s2255_init(void) | |
2562 | { | |
2563 | int result; | |
2564 | ||
2565 | /* register this driver with the USB subsystem */ | |
2566 | result = usb_register(&s2255_driver); | |
2567 | ||
2568 | if (result) | |
2569 | err("usb_register failed. Error number %d", result); | |
2570 | ||
2571 | dprintk(2, "s2255_init: done\n"); | |
2572 | return result; | |
2573 | } | |
2574 | ||
2575 | static void __exit usb_s2255_exit(void) | |
2576 | { | |
2577 | usb_deregister(&s2255_driver); | |
2578 | } | |
2579 | ||
2580 | module_init(usb_s2255_init); | |
2581 | module_exit(usb_s2255_exit); | |
2582 | ||
2583 | MODULE_DESCRIPTION("Sensoray 2255 Video for Linux driver"); | |
2584 | MODULE_AUTHOR("Dean Anderson (Sensoray Company Inc.)"); | |
2585 | MODULE_LICENSE("GPL"); |