Commit | Line | Data |
---|---|---|
b7eee616 | 1 | /* |
ccbf035a | 2 | * Zoran 364xx based USB webcam module version 0.73 |
b7eee616 AJ |
3 | * |
4 | * Allows you to use your USB webcam with V4L2 applications | |
5 | * This is still in heavy developpement ! | |
6 | * | |
7 | * Copyright (C) 2004 Antoine Jacquet <royale@zerezo.com> | |
8 | * http://royale.zerezo.com/zr364xx/ | |
9 | * | |
10 | * Heavily inspired by usb-skeleton.c, vicam.c, cpia.c and spca50x.c drivers | |
11 | * V4L2 version inspired by meye.c driver | |
12 | * | |
ccbf035a LVS |
13 | * Some video buffer code by Lamarque based on s2255drv.c and vivi.c drivers. |
14 | * | |
b7eee616 AJ |
15 | * This program is free software; you can redistribute it and/or modify |
16 | * it under the terms of the GNU General Public License as published by | |
17 | * the Free Software Foundation; either version 2 of the License, or | |
18 | * (at your option) any later version. | |
19 | * | |
20 | * This program is distributed in the hope that it will be useful, | |
21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
23 | * GNU General Public License for more details. | |
24 | * | |
25 | * You should have received a copy of the GNU General Public License | |
26 | * along with this program; if not, write to the Free Software | |
27 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
28 | */ | |
29 | ||
30 | ||
b7eee616 AJ |
31 | #include <linux/module.h> |
32 | #include <linux/init.h> | |
33 | #include <linux/usb.h> | |
34 | #include <linux/vmalloc.h> | |
35 | #include <linux/slab.h> | |
36 | #include <linux/proc_fs.h> | |
2575f84a | 37 | #include <linux/highmem.h> |
b7eee616 | 38 | #include <media/v4l2-common.h> |
35ea11ff | 39 | #include <media/v4l2-ioctl.h> |
a906f62f | 40 | #include <media/v4l2-device.h> |
1fc21a19 | 41 | #include <media/v4l2-ctrls.h> |
5d317abe HV |
42 | #include <media/v4l2-fh.h> |
43 | #include <media/v4l2-event.h> | |
ccbf035a | 44 | #include <media/videobuf-vmalloc.h> |
b7eee616 AJ |
45 | |
46 | ||
47 | /* Version Information */ | |
1990d50b | 48 | #define DRIVER_VERSION "0.7.4" |
b7eee616 AJ |
49 | #define DRIVER_AUTHOR "Antoine Jacquet, http://royale.zerezo.com/" |
50 | #define DRIVER_DESC "Zoran 364xx" | |
51 | ||
52 | ||
53 | /* Camera */ | |
ccbf035a | 54 | #define FRAMES 1 |
8c5f32ac | 55 | #define MAX_FRAME_SIZE 200000 |
b7eee616 AJ |
56 | #define BUFFER_SIZE 0x1000 |
57 | #define CTRL_TIMEOUT 500 | |
58 | ||
ccbf035a LVS |
59 | #define ZR364XX_DEF_BUFS 4 |
60 | #define ZR364XX_READ_IDLE 0 | |
61 | #define ZR364XX_READ_FRAME 1 | |
b7eee616 AJ |
62 | |
63 | /* Debug macro */ | |
ccbf035a LVS |
64 | #define DBG(fmt, args...) \ |
65 | do { \ | |
66 | if (debug) { \ | |
67 | printk(KERN_INFO KBUILD_MODNAME " " fmt, ##args); \ | |
68 | } \ | |
69 | } while (0) | |
b7eee616 | 70 | |
76594c53 LVS |
71 | /*#define FULL_DEBUG 1*/ |
72 | #ifdef FULL_DEBUG | |
73 | #define _DBG DBG | |
74 | #else | |
75 | #define _DBG(fmt, args...) | |
76 | #endif | |
77 | ||
b7eee616 AJ |
78 | /* Init methods, need to find nicer names for these |
79 | * the exact names of the chipsets would be the best if someone finds it */ | |
80 | #define METHOD0 0 | |
81 | #define METHOD1 1 | |
82 | #define METHOD2 2 | |
08135ba2 | 83 | #define METHOD3 3 |
b7eee616 AJ |
84 | |
85 | ||
86 | /* Module parameters */ | |
ff699e6b DSL |
87 | static int debug; |
88 | static int mode; | |
b7eee616 AJ |
89 | |
90 | ||
91 | /* Module parameters interface */ | |
92 | module_param(debug, int, 0644); | |
93 | MODULE_PARM_DESC(debug, "Debug level"); | |
94 | module_param(mode, int, 0644); | |
95 | MODULE_PARM_DESC(mode, "0 = 320x240, 1 = 160x120, 2 = 640x480"); | |
96 | ||
97 | ||
98 | /* Devices supported by this driver | |
99 | * .driver_info contains the init method used by the camera */ | |
100 | static struct usb_device_id device_table[] = { | |
101 | {USB_DEVICE(0x08ca, 0x0109), .driver_info = METHOD0 }, | |
102 | {USB_DEVICE(0x041e, 0x4024), .driver_info = METHOD0 }, | |
103 | {USB_DEVICE(0x0d64, 0x0108), .driver_info = METHOD0 }, | |
104 | {USB_DEVICE(0x0546, 0x3187), .driver_info = METHOD0 }, | |
105 | {USB_DEVICE(0x0d64, 0x3108), .driver_info = METHOD0 }, | |
106 | {USB_DEVICE(0x0595, 0x4343), .driver_info = METHOD0 }, | |
107 | {USB_DEVICE(0x0bb0, 0x500d), .driver_info = METHOD0 }, | |
108 | {USB_DEVICE(0x0feb, 0x2004), .driver_info = METHOD0 }, | |
109 | {USB_DEVICE(0x055f, 0xb500), .driver_info = METHOD0 }, | |
110 | {USB_DEVICE(0x08ca, 0x2062), .driver_info = METHOD2 }, | |
111 | {USB_DEVICE(0x052b, 0x1a18), .driver_info = METHOD1 }, | |
112 | {USB_DEVICE(0x04c8, 0x0729), .driver_info = METHOD0 }, | |
113 | {USB_DEVICE(0x04f2, 0xa208), .driver_info = METHOD0 }, | |
114 | {USB_DEVICE(0x0784, 0x0040), .driver_info = METHOD1 }, | |
115 | {USB_DEVICE(0x06d6, 0x0034), .driver_info = METHOD0 }, | |
116 | {USB_DEVICE(0x0a17, 0x0062), .driver_info = METHOD2 }, | |
bebeaea0 | 117 | {USB_DEVICE(0x06d6, 0x003b), .driver_info = METHOD0 }, |
71c04475 | 118 | {USB_DEVICE(0x0a17, 0x004e), .driver_info = METHOD2 }, |
c0e0aff9 | 119 | {USB_DEVICE(0x041e, 0x405d), .driver_info = METHOD2 }, |
08135ba2 | 120 | {USB_DEVICE(0x08ca, 0x2102), .driver_info = METHOD3 }, |
9018f6c3 | 121 | {USB_DEVICE(0x06d6, 0x003d), .driver_info = METHOD0 }, |
b7eee616 AJ |
122 | {} /* Terminating entry */ |
123 | }; | |
124 | ||
125 | MODULE_DEVICE_TABLE(usb, device_table); | |
126 | ||
ccbf035a LVS |
127 | /* frame structure */ |
128 | struct zr364xx_framei { | |
129 | unsigned long ulState; /* ulState:ZR364XX_READ_IDLE, | |
130 | ZR364XX_READ_FRAME */ | |
131 | void *lpvbits; /* image data */ | |
132 | unsigned long cur_size; /* current data copied to it */ | |
133 | }; | |
134 | ||
135 | /* image buffer structure */ | |
136 | struct zr364xx_bufferi { | |
137 | unsigned long dwFrames; /* number of frames in buffer */ | |
138 | struct zr364xx_framei frame[FRAMES]; /* array of FRAME structures */ | |
139 | }; | |
140 | ||
141 | struct zr364xx_dmaqueue { | |
142 | struct list_head active; | |
143 | struct zr364xx_camera *cam; | |
144 | }; | |
145 | ||
146 | struct zr364xx_pipeinfo { | |
147 | u32 transfer_size; | |
148 | u8 *transfer_buffer; | |
149 | u32 state; | |
150 | void *stream_urb; | |
151 | void *cam; /* back pointer to zr364xx_camera struct */ | |
152 | u32 err_count; | |
153 | u32 idx; | |
154 | }; | |
155 | ||
156 | struct zr364xx_fmt { | |
157 | char *name; | |
158 | u32 fourcc; | |
159 | int depth; | |
160 | }; | |
161 | ||
162 | /* image formats. */ | |
163 | static const struct zr364xx_fmt formats[] = { | |
164 | { | |
165 | .name = "JPG", | |
166 | .fourcc = V4L2_PIX_FMT_JPEG, | |
167 | .depth = 24 | |
168 | } | |
169 | }; | |
b7eee616 AJ |
170 | |
171 | /* Camera stuff */ | |
172 | struct zr364xx_camera { | |
173 | struct usb_device *udev; /* save off the usb device pointer */ | |
174 | struct usb_interface *interface;/* the interface for this device */ | |
a906f62f | 175 | struct v4l2_device v4l2_dev; |
1fc21a19 | 176 | struct v4l2_ctrl_handler ctrl_handler; |
2b99251f | 177 | struct video_device vdev; /* v4l video device */ |
a065729d | 178 | struct v4l2_fh *owner; /* owns the streaming */ |
b7eee616 | 179 | int nb; |
ccbf035a | 180 | struct zr364xx_bufferi buffer; |
b7eee616 | 181 | int skip; |
b7eee616 AJ |
182 | int width; |
183 | int height; | |
184 | int method; | |
185 | struct mutex lock; | |
ccbf035a LVS |
186 | |
187 | spinlock_t slock; | |
188 | struct zr364xx_dmaqueue vidq; | |
ccbf035a LVS |
189 | int last_frame; |
190 | int cur_frame; | |
191 | unsigned long frame_count; | |
192 | int b_acquire; | |
193 | struct zr364xx_pipeinfo pipe[1]; | |
194 | ||
195 | u8 read_endpoint; | |
196 | ||
197 | const struct zr364xx_fmt *fmt; | |
198 | struct videobuf_queue vb_vidq; | |
587a5765 | 199 | bool was_streaming; |
b7eee616 AJ |
200 | }; |
201 | ||
ccbf035a LVS |
202 | /* buffer for one video frame */ |
203 | struct zr364xx_buffer { | |
204 | /* common v4l buffer stuff -- must be first */ | |
205 | struct videobuf_buffer vb; | |
206 | const struct zr364xx_fmt *fmt; | |
207 | }; | |
b7eee616 AJ |
208 | |
209 | /* function used to send initialisation commands to the camera */ | |
210 | static int send_control_msg(struct usb_device *udev, u8 request, u16 value, | |
211 | u16 index, unsigned char *cp, u16 size) | |
212 | { | |
213 | int status; | |
214 | ||
215 | unsigned char *transfer_buffer = kmalloc(size, GFP_KERNEL); | |
216 | if (!transfer_buffer) { | |
a482f327 | 217 | dev_err(&udev->dev, "kmalloc(%d) failed\n", size); |
b7eee616 AJ |
218 | return -ENOMEM; |
219 | } | |
220 | ||
221 | memcpy(transfer_buffer, cp, size); | |
222 | ||
223 | status = usb_control_msg(udev, | |
224 | usb_sndctrlpipe(udev, 0), | |
225 | request, | |
226 | USB_DIR_OUT | USB_TYPE_VENDOR | | |
227 | USB_RECIP_DEVICE, value, index, | |
228 | transfer_buffer, size, CTRL_TIMEOUT); | |
229 | ||
230 | kfree(transfer_buffer); | |
b7eee616 AJ |
231 | return status; |
232 | } | |
233 | ||
234 | ||
235 | /* Control messages sent to the camera to initialize it | |
236 | * and launch the capture */ | |
237 | typedef struct { | |
238 | unsigned int value; | |
239 | unsigned int size; | |
240 | unsigned char *bytes; | |
241 | } message; | |
242 | ||
243 | /* method 0 */ | |
244 | static unsigned char m0d1[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; | |
245 | static unsigned char m0d2[] = { 0, 0, 0, 0, 0, 0 }; | |
246 | static unsigned char m0d3[] = { 0, 0 }; | |
247 | static message m0[] = { | |
248 | {0x1f30, 0, NULL}, | |
249 | {0xd000, 0, NULL}, | |
250 | {0x3370, sizeof(m0d1), m0d1}, | |
251 | {0x2000, 0, NULL}, | |
252 | {0x2f0f, 0, NULL}, | |
253 | {0x2610, sizeof(m0d2), m0d2}, | |
254 | {0xe107, 0, NULL}, | |
255 | {0x2502, 0, NULL}, | |
256 | {0x1f70, 0, NULL}, | |
257 | {0xd000, 0, NULL}, | |
258 | {0x9a01, sizeof(m0d3), m0d3}, | |
259 | {-1, -1, NULL} | |
260 | }; | |
261 | ||
262 | /* method 1 */ | |
263 | static unsigned char m1d1[] = { 0xff, 0xff }; | |
264 | static unsigned char m1d2[] = { 0x00, 0x00 }; | |
265 | static message m1[] = { | |
266 | {0x1f30, 0, NULL}, | |
267 | {0xd000, 0, NULL}, | |
268 | {0xf000, 0, NULL}, | |
269 | {0x2000, 0, NULL}, | |
270 | {0x2f0f, 0, NULL}, | |
271 | {0x2650, 0, NULL}, | |
272 | {0xe107, 0, NULL}, | |
273 | {0x2502, sizeof(m1d1), m1d1}, | |
274 | {0x1f70, 0, NULL}, | |
275 | {0xd000, 0, NULL}, | |
276 | {0xd000, 0, NULL}, | |
277 | {0xd000, 0, NULL}, | |
278 | {0x9a01, sizeof(m1d2), m1d2}, | |
279 | {-1, -1, NULL} | |
280 | }; | |
281 | ||
282 | /* method 2 */ | |
283 | static unsigned char m2d1[] = { 0xff, 0xff }; | |
284 | static message m2[] = { | |
285 | {0x1f30, 0, NULL}, | |
286 | {0xf000, 0, NULL}, | |
287 | {0x2000, 0, NULL}, | |
288 | {0x2f0f, 0, NULL}, | |
289 | {0x2650, 0, NULL}, | |
290 | {0xe107, 0, NULL}, | |
291 | {0x2502, sizeof(m2d1), m2d1}, | |
292 | {0x1f70, 0, NULL}, | |
293 | {-1, -1, NULL} | |
294 | }; | |
295 | ||
296 | /* init table */ | |
08135ba2 | 297 | static message *init[4] = { m0, m1, m2, m2 }; |
b7eee616 AJ |
298 | |
299 | ||
300 | /* JPEG static data in header (Huffman table, etc) */ | |
301 | static unsigned char header1[] = { | |
302 | 0xFF, 0xD8, | |
303 | /* | |
304 | 0xFF, 0xE0, 0x00, 0x10, 'J', 'F', 'I', 'F', | |
305 | 0x00, 0x01, 0x01, 0x00, 0x33, 0x8A, 0x00, 0x00, 0x33, 0x88, | |
306 | */ | |
307 | 0xFF, 0xDB, 0x00, 0x84 | |
308 | }; | |
309 | static unsigned char header2[] = { | |
310 | 0xFF, 0xC4, 0x00, 0x1F, 0x00, 0x00, 0x01, 0x05, 0x01, 0x01, 0x01, | |
311 | 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
312 | 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, | |
313 | 0xFF, 0xC4, 0x00, 0xB5, 0x10, 0x00, 0x02, 0x01, 0x03, 0x03, 0x02, | |
314 | 0x04, 0x03, 0x05, 0x05, 0x04, 0x04, 0x00, 0x00, 0x01, 0x7D, 0x01, | |
315 | 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21, 0x31, 0x41, 0x06, | |
316 | 0x13, 0x51, 0x61, 0x07, 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xA1, | |
317 | 0x08, 0x23, 0x42, 0xB1, 0xC1, 0x15, 0x52, 0xD1, 0xF0, 0x24, 0x33, | |
318 | 0x62, 0x72, 0x82, 0x09, 0x0A, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x25, | |
319 | 0x26, 0x27, 0x28, 0x29, 0x2A, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, | |
320 | 0x3A, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, | |
321 | 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, | |
322 | 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, | |
323 | 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, | |
324 | 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, | |
325 | 0xA7, 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, | |
326 | 0xB9, 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, | |
327 | 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE1, 0xE2, | |
328 | 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF1, 0xF2, 0xF3, | |
329 | 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFF, 0xC4, 0x00, 0x1F, | |
330 | 0x01, 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, | |
331 | 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, | |
332 | 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0xFF, 0xC4, 0x00, 0xB5, | |
333 | 0x11, 0x00, 0x02, 0x01, 0x02, 0x04, 0x04, 0x03, 0x04, 0x07, 0x05, | |
334 | 0x04, 0x04, 0x00, 0x01, 0x02, 0x77, 0x00, 0x01, 0x02, 0x03, 0x11, | |
335 | 0x04, 0x05, 0x21, 0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71, | |
336 | 0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, 0xA1, 0xB1, 0xC1, | |
337 | 0x09, 0x23, 0x33, 0x52, 0xF0, 0x15, 0x62, 0x72, 0xD1, 0x0A, 0x16, | |
338 | 0x24, 0x34, 0xE1, 0x25, 0xF1, 0x17, 0x18, 0x19, 0x1A, 0x26, 0x27, | |
339 | 0x28, 0x29, 0x2A, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44, | |
340 | 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, | |
341 | 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, | |
342 | 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x82, 0x83, 0x84, | |
343 | 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, | |
344 | 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, | |
345 | 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, | |
346 | 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xD2, 0xD3, | |
347 | 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE2, 0xE3, 0xE4, 0xE5, | |
348 | 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, | |
349 | 0xF8, 0xF9, 0xFA, 0xFF, 0xC0, 0x00, 0x11, 0x08, 0x00, 0xF0, 0x01, | |
350 | 0x40, 0x03, 0x01, 0x21, 0x00, 0x02, 0x11, 0x01, 0x03, 0x11, 0x01, | |
351 | 0xFF, 0xDA, 0x00, 0x0C, 0x03, 0x01, 0x00, 0x02, 0x11, 0x03, 0x11, | |
352 | 0x00, 0x3F, 0x00 | |
353 | }; | |
354 | static unsigned char header3; | |
355 | ||
ccbf035a LVS |
356 | /* ------------------------------------------------------------------ |
357 | Videobuf operations | |
358 | ------------------------------------------------------------------*/ | |
b7eee616 | 359 | |
ccbf035a LVS |
360 | static int buffer_setup(struct videobuf_queue *vq, unsigned int *count, |
361 | unsigned int *size) | |
362 | { | |
363 | struct zr364xx_camera *cam = vq->priv_data; | |
b7eee616 | 364 | |
ccbf035a | 365 | *size = cam->width * cam->height * (cam->fmt->depth >> 3); |
b7eee616 | 366 | |
ccbf035a LVS |
367 | if (*count == 0) |
368 | *count = ZR364XX_DEF_BUFS; | |
b7eee616 | 369 | |
dab7e310 AB |
370 | if (*size * *count > ZR364XX_DEF_BUFS * 1024 * 1024) |
371 | *count = (ZR364XX_DEF_BUFS * 1024 * 1024) / *size; | |
b7eee616 | 372 | |
ccbf035a LVS |
373 | return 0; |
374 | } | |
b7eee616 | 375 | |
ccbf035a LVS |
376 | static void free_buffer(struct videobuf_queue *vq, struct zr364xx_buffer *buf) |
377 | { | |
76594c53 | 378 | _DBG("%s\n", __func__); |
b7eee616 | 379 | |
09f2082e | 380 | BUG_ON(in_interrupt()); |
b7eee616 | 381 | |
ccbf035a LVS |
382 | videobuf_vmalloc_free(&buf->vb); |
383 | buf->vb.state = VIDEOBUF_NEEDS_INIT; | |
384 | } | |
385 | ||
386 | static int buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, | |
387 | enum v4l2_field field) | |
388 | { | |
389 | struct zr364xx_camera *cam = vq->priv_data; | |
390 | struct zr364xx_buffer *buf = container_of(vb, struct zr364xx_buffer, | |
391 | vb); | |
392 | int rc; | |
393 | ||
394 | DBG("%s, field=%d, fmt name = %s\n", __func__, field, cam->fmt != NULL ? | |
395 | cam->fmt->name : ""); | |
396 | if (cam->fmt == NULL) | |
397 | return -EINVAL; | |
398 | ||
399 | buf->vb.size = cam->width * cam->height * (cam->fmt->depth >> 3); | |
400 | ||
401 | if (buf->vb.baddr != 0 && buf->vb.bsize < buf->vb.size) { | |
402 | DBG("invalid buffer prepare\n"); | |
403 | return -EINVAL; | |
b7eee616 | 404 | } |
ccbf035a LVS |
405 | |
406 | buf->fmt = cam->fmt; | |
407 | buf->vb.width = cam->width; | |
408 | buf->vb.height = cam->height; | |
409 | buf->vb.field = field; | |
410 | ||
411 | if (buf->vb.state == VIDEOBUF_NEEDS_INIT) { | |
412 | rc = videobuf_iolock(vq, &buf->vb, NULL); | |
413 | if (rc < 0) | |
414 | goto fail; | |
b7eee616 AJ |
415 | } |
416 | ||
ccbf035a LVS |
417 | buf->vb.state = VIDEOBUF_PREPARED; |
418 | return 0; | |
419 | fail: | |
420 | free_buffer(vq, buf); | |
421 | return rc; | |
422 | } | |
423 | ||
424 | static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) | |
425 | { | |
426 | struct zr364xx_buffer *buf = container_of(vb, struct zr364xx_buffer, | |
427 | vb); | |
428 | struct zr364xx_camera *cam = vq->priv_data; | |
429 | ||
76594c53 | 430 | _DBG("%s\n", __func__); |
b7eee616 | 431 | |
ccbf035a LVS |
432 | buf->vb.state = VIDEOBUF_QUEUED; |
433 | list_add_tail(&buf->vb.queue, &cam->vidq.active); | |
b7eee616 AJ |
434 | } |
435 | ||
ccbf035a LVS |
436 | static void buffer_release(struct videobuf_queue *vq, |
437 | struct videobuf_buffer *vb) | |
438 | { | |
439 | struct zr364xx_buffer *buf = container_of(vb, struct zr364xx_buffer, | |
440 | vb); | |
441 | ||
76594c53 | 442 | _DBG("%s\n", __func__); |
ccbf035a LVS |
443 | free_buffer(vq, buf); |
444 | } | |
445 | ||
446 | static struct videobuf_queue_ops zr364xx_video_qops = { | |
447 | .buf_setup = buffer_setup, | |
448 | .buf_prepare = buffer_prepare, | |
449 | .buf_queue = buffer_queue, | |
450 | .buf_release = buffer_release, | |
451 | }; | |
452 | ||
453 | /********************/ | |
454 | /* V4L2 integration */ | |
455 | /********************/ | |
456 | static int zr364xx_vidioc_streamon(struct file *file, void *priv, | |
457 | enum v4l2_buf_type type); | |
b7eee616 | 458 | |
ccbf035a | 459 | static ssize_t zr364xx_read(struct file *file, char __user *buf, size_t count, |
b7eee616 AJ |
460 | loff_t * ppos) |
461 | { | |
ccbf035a | 462 | struct zr364xx_camera *cam = video_drvdata(file); |
a906f62f | 463 | int err = 0; |
b7eee616 | 464 | |
76594c53 | 465 | _DBG("%s\n", __func__); |
b7eee616 AJ |
466 | |
467 | if (!buf) | |
468 | return -EINVAL; | |
469 | ||
470 | if (!count) | |
471 | return -EINVAL; | |
472 | ||
a906f62f HV |
473 | if (mutex_lock_interruptible(&cam->lock)) |
474 | return -ERESTARTSYS; | |
475 | ||
a065729d HV |
476 | err = zr364xx_vidioc_streamon(file, file->private_data, |
477 | V4L2_BUF_TYPE_VIDEO_CAPTURE); | |
478 | if (err == 0) { | |
479 | DBG("%s: reading %d bytes at pos %d.\n", __func__, | |
480 | (int) count, (int) *ppos); | |
ccbf035a LVS |
481 | |
482 | /* NoMan Sux ! */ | |
a906f62f | 483 | err = videobuf_read_one(&cam->vb_vidq, buf, count, ppos, |
ccbf035a LVS |
484 | file->f_flags & O_NONBLOCK); |
485 | } | |
a906f62f HV |
486 | mutex_unlock(&cam->lock); |
487 | return err; | |
ccbf035a LVS |
488 | } |
489 | ||
490 | /* video buffer vmalloc implementation based partly on VIVI driver which is | |
491 | * Copyright (c) 2006 by | |
492 | * Mauro Carvalho Chehab <mchehab--a.t--infradead.org> | |
493 | * Ted Walther <ted--a.t--enumera.com> | |
494 | * John Sokol <sokol--a.t--videotechnology.com> | |
495 | * http://v4l.videotechnology.com/ | |
496 | * | |
497 | */ | |
498 | static void zr364xx_fillbuff(struct zr364xx_camera *cam, | |
499 | struct zr364xx_buffer *buf, | |
500 | int jpgsize) | |
501 | { | |
502 | int pos = 0; | |
ccbf035a LVS |
503 | const char *tmpbuf; |
504 | char *vbuf = videobuf_to_vmalloc(&buf->vb); | |
505 | unsigned long last_frame; | |
ccbf035a LVS |
506 | |
507 | if (!vbuf) | |
508 | return; | |
509 | ||
510 | last_frame = cam->last_frame; | |
511 | if (last_frame != -1) { | |
ccbf035a LVS |
512 | tmpbuf = (const char *)cam->buffer.frame[last_frame].lpvbits; |
513 | switch (buf->fmt->fourcc) { | |
514 | case V4L2_PIX_FMT_JPEG: | |
515 | buf->vb.size = jpgsize; | |
516 | memcpy(vbuf, tmpbuf, buf->vb.size); | |
517 | break; | |
518 | default: | |
519 | printk(KERN_DEBUG KBUILD_MODNAME ": unknown format?\n"); | |
520 | } | |
521 | cam->last_frame = -1; | |
522 | } else { | |
523 | printk(KERN_ERR KBUILD_MODNAME ": =======no frame\n"); | |
524 | return; | |
525 | } | |
526 | DBG("%s: Buffer 0x%08lx size= %d\n", __func__, | |
527 | (unsigned long)vbuf, pos); | |
528 | /* tell v4l buffer was filled */ | |
529 | ||
530 | buf->vb.field_count = cam->frame_count * 2; | |
8e6057b5 | 531 | v4l2_get_timestamp(&buf->vb.ts); |
ccbf035a LVS |
532 | buf->vb.state = VIDEOBUF_DONE; |
533 | } | |
534 | ||
535 | static int zr364xx_got_frame(struct zr364xx_camera *cam, int jpgsize) | |
536 | { | |
537 | struct zr364xx_dmaqueue *dma_q = &cam->vidq; | |
538 | struct zr364xx_buffer *buf; | |
539 | unsigned long flags = 0; | |
540 | int rc = 0; | |
541 | ||
542 | DBG("wakeup: %p\n", &dma_q); | |
543 | spin_lock_irqsave(&cam->slock, flags); | |
544 | ||
545 | if (list_empty(&dma_q->active)) { | |
546 | DBG("No active queue to serve\n"); | |
547 | rc = -1; | |
548 | goto unlock; | |
549 | } | |
550 | buf = list_entry(dma_q->active.next, | |
551 | struct zr364xx_buffer, vb.queue); | |
552 | ||
553 | if (!waitqueue_active(&buf->vb.done)) { | |
554 | /* no one active */ | |
555 | rc = -1; | |
556 | goto unlock; | |
557 | } | |
558 | list_del(&buf->vb.queue); | |
8e6057b5 | 559 | v4l2_get_timestamp(&buf->vb.ts); |
ccbf035a LVS |
560 | DBG("[%p/%d] wakeup\n", buf, buf->vb.i); |
561 | zr364xx_fillbuff(cam, buf, jpgsize); | |
562 | wake_up(&buf->vb.done); | |
563 | DBG("wakeup [buf/i] [%p/%d]\n", buf, buf->vb.i); | |
564 | unlock: | |
565 | spin_unlock_irqrestore(&cam->slock, flags); | |
3053814c | 566 | return rc; |
ccbf035a LVS |
567 | } |
568 | ||
569 | /* this function moves the usb stream read pipe data | |
570 | * into the system buffers. | |
571 | * returns 0 on success, EAGAIN if more data to process (call this | |
572 | * function again). | |
573 | */ | |
574 | static int zr364xx_read_video_callback(struct zr364xx_camera *cam, | |
575 | struct zr364xx_pipeinfo *pipe_info, | |
576 | struct urb *purb) | |
577 | { | |
578 | unsigned char *pdest; | |
579 | unsigned char *psrc; | |
580 | s32 idx = -1; | |
581 | struct zr364xx_framei *frm; | |
582 | int i = 0; | |
583 | unsigned char *ptr = NULL; | |
584 | ||
76594c53 | 585 | _DBG("buffer to user\n"); |
ccbf035a LVS |
586 | idx = cam->cur_frame; |
587 | frm = &cam->buffer.frame[idx]; | |
588 | ||
589 | /* swap bytes if camera needs it */ | |
590 | if (cam->method == METHOD0) { | |
591 | u16 *buf = (u16 *)pipe_info->transfer_buffer; | |
592 | for (i = 0; i < purb->actual_length/2; i++) | |
593 | swab16s(buf + i); | |
594 | } | |
595 | ||
596 | /* search done. now find out if should be acquiring */ | |
597 | if (!cam->b_acquire) { | |
598 | /* we found a frame, but this channel is turned off */ | |
599 | frm->ulState = ZR364XX_READ_IDLE; | |
600 | return -EINVAL; | |
601 | } | |
602 | ||
ccbf035a LVS |
603 | psrc = (u8 *)pipe_info->transfer_buffer; |
604 | ptr = pdest = frm->lpvbits; | |
605 | ||
606 | if (frm->ulState == ZR364XX_READ_IDLE) { | |
607 | frm->ulState = ZR364XX_READ_FRAME; | |
608 | frm->cur_size = 0; | |
609 | ||
76594c53 | 610 | _DBG("jpeg header, "); |
ccbf035a LVS |
611 | memcpy(ptr, header1, sizeof(header1)); |
612 | ptr += sizeof(header1); | |
613 | header3 = 0; | |
614 | memcpy(ptr, &header3, 1); | |
615 | ptr++; | |
616 | memcpy(ptr, psrc, 64); | |
617 | ptr += 64; | |
618 | header3 = 1; | |
619 | memcpy(ptr, &header3, 1); | |
620 | ptr++; | |
621 | memcpy(ptr, psrc + 64, 64); | |
622 | ptr += 64; | |
623 | memcpy(ptr, header2, sizeof(header2)); | |
624 | ptr += sizeof(header2); | |
625 | memcpy(ptr, psrc + 128, | |
626 | purb->actual_length - 128); | |
627 | ptr += purb->actual_length - 128; | |
76594c53 | 628 | _DBG("header : %d %d %d %d %d %d %d %d %d\n", |
ccbf035a LVS |
629 | psrc[0], psrc[1], psrc[2], |
630 | psrc[3], psrc[4], psrc[5], | |
631 | psrc[6], psrc[7], psrc[8]); | |
632 | frm->cur_size = ptr - pdest; | |
633 | } else { | |
76594c53 LVS |
634 | if (frm->cur_size + purb->actual_length > MAX_FRAME_SIZE) { |
635 | dev_info(&cam->udev->dev, | |
636 | "%s: buffer (%d bytes) too small to hold " | |
637 | "frame data. Discarding frame data.\n", | |
638 | __func__, MAX_FRAME_SIZE); | |
639 | } else { | |
640 | pdest += frm->cur_size; | |
641 | memcpy(pdest, psrc, purb->actual_length); | |
642 | frm->cur_size += purb->actual_length; | |
643 | } | |
ccbf035a | 644 | } |
76594c53 | 645 | /*_DBG("cur_size %lu urb size %d\n", frm->cur_size, |
ccbf035a LVS |
646 | purb->actual_length);*/ |
647 | ||
648 | if (purb->actual_length < pipe_info->transfer_size) { | |
76594c53 | 649 | _DBG("****************Buffer[%d]full*************\n", idx); |
ccbf035a LVS |
650 | cam->last_frame = cam->cur_frame; |
651 | cam->cur_frame++; | |
652 | /* end of system frame ring buffer, start at zero */ | |
653 | if (cam->cur_frame == cam->buffer.dwFrames) | |
654 | cam->cur_frame = 0; | |
655 | ||
656 | /* frame ready */ | |
657 | /* go back to find the JPEG EOI marker */ | |
658 | ptr = pdest = frm->lpvbits; | |
659 | ptr += frm->cur_size - 2; | |
660 | while (ptr > pdest) { | |
661 | if (*ptr == 0xFF && *(ptr + 1) == 0xD9 | |
662 | && *(ptr + 2) == 0xFF) | |
663 | break; | |
664 | ptr--; | |
665 | } | |
666 | if (ptr == pdest) | |
667 | DBG("No EOI marker\n"); | |
668 | ||
669 | /* Sometimes there is junk data in the middle of the picture, | |
670 | * we want to skip this bogus frames */ | |
671 | while (ptr > pdest) { | |
672 | if (*ptr == 0xFF && *(ptr + 1) == 0xFF | |
673 | && *(ptr + 2) == 0xFF) | |
674 | break; | |
675 | ptr--; | |
676 | } | |
677 | if (ptr != pdest) { | |
678 | DBG("Bogus frame ? %d\n", ++(cam->nb)); | |
679 | } else if (cam->b_acquire) { | |
680 | /* we skip the 2 first frames which are usually buggy */ | |
681 | if (cam->skip) | |
682 | cam->skip--; | |
683 | else { | |
76594c53 | 684 | _DBG("jpeg(%lu): %d %d %d %d %d %d %d %d\n", |
ccbf035a LVS |
685 | frm->cur_size, |
686 | pdest[0], pdest[1], pdest[2], pdest[3], | |
687 | pdest[4], pdest[5], pdest[6], pdest[7]); | |
688 | ||
689 | zr364xx_got_frame(cam, frm->cur_size); | |
690 | } | |
691 | } | |
692 | cam->frame_count++; | |
693 | frm->ulState = ZR364XX_READ_IDLE; | |
694 | frm->cur_size = 0; | |
695 | } | |
696 | /* done successfully */ | |
697 | return 0; | |
698 | } | |
699 | ||
b7eee616 AJ |
700 | static int zr364xx_vidioc_querycap(struct file *file, void *priv, |
701 | struct v4l2_capability *cap) | |
702 | { | |
ccbf035a LVS |
703 | struct zr364xx_camera *cam = video_drvdata(file); |
704 | ||
705 | strlcpy(cap->driver, DRIVER_DESC, sizeof(cap->driver)); | |
706 | strlcpy(cap->card, cam->udev->product, sizeof(cap->card)); | |
707 | strlcpy(cap->bus_info, dev_name(&cam->udev->dev), | |
708 | sizeof(cap->bus_info)); | |
df462902 | 709 | cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | |
ccbf035a LVS |
710 | V4L2_CAP_READWRITE | |
711 | V4L2_CAP_STREAMING; | |
df462902 | 712 | cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; |
ccbf035a | 713 | |
b7eee616 AJ |
714 | return 0; |
715 | } | |
716 | ||
717 | static int zr364xx_vidioc_enum_input(struct file *file, void *priv, | |
718 | struct v4l2_input *i) | |
719 | { | |
720 | if (i->index != 0) | |
721 | return -EINVAL; | |
b7eee616 AJ |
722 | strcpy(i->name, DRIVER_DESC " Camera"); |
723 | i->type = V4L2_INPUT_TYPE_CAMERA; | |
724 | return 0; | |
725 | } | |
726 | ||
727 | static int zr364xx_vidioc_g_input(struct file *file, void *priv, | |
728 | unsigned int *i) | |
729 | { | |
730 | *i = 0; | |
731 | return 0; | |
732 | } | |
733 | ||
734 | static int zr364xx_vidioc_s_input(struct file *file, void *priv, | |
735 | unsigned int i) | |
736 | { | |
737 | if (i != 0) | |
738 | return -EINVAL; | |
739 | return 0; | |
740 | } | |
741 | ||
1fc21a19 | 742 | static int zr364xx_s_ctrl(struct v4l2_ctrl *ctrl) |
b7eee616 | 743 | { |
1fc21a19 HV |
744 | struct zr364xx_camera *cam = |
745 | container_of(ctrl->handler, struct zr364xx_camera, ctrl_handler); | |
ccbf035a | 746 | int temp; |
b7eee616 | 747 | |
1fc21a19 | 748 | switch (ctrl->id) { |
b7eee616 | 749 | case V4L2_CID_BRIGHTNESS: |
ccbf035a | 750 | /* hardware brightness */ |
ccbf035a | 751 | send_control_msg(cam->udev, 1, 0x2001, 0, NULL, 0); |
1fc21a19 | 752 | temp = (0x60 << 8) + 127 - ctrl->val; |
ccbf035a | 753 | send_control_msg(cam->udev, 1, temp, 0, NULL, 0); |
b7eee616 AJ |
754 | break; |
755 | default: | |
756 | return -EINVAL; | |
757 | } | |
ccbf035a | 758 | |
b7eee616 AJ |
759 | return 0; |
760 | } | |
761 | ||
78b526a4 | 762 | static int zr364xx_vidioc_enum_fmt_vid_cap(struct file *file, |
b7eee616 AJ |
763 | void *priv, struct v4l2_fmtdesc *f) |
764 | { | |
765 | if (f->index > 0) | |
766 | return -EINVAL; | |
b7eee616 | 767 | f->flags = V4L2_FMT_FLAG_COMPRESSED; |
ccbf035a LVS |
768 | strcpy(f->description, formats[0].name); |
769 | f->pixelformat = formats[0].fourcc; | |
b7eee616 AJ |
770 | return 0; |
771 | } | |
772 | ||
ccbf035a LVS |
773 | static char *decode_fourcc(__u32 pixelformat, char *buf) |
774 | { | |
775 | buf[0] = pixelformat & 0xff; | |
776 | buf[1] = (pixelformat >> 8) & 0xff; | |
777 | buf[2] = (pixelformat >> 16) & 0xff; | |
778 | buf[3] = (pixelformat >> 24) & 0xff; | |
779 | buf[4] = '\0'; | |
780 | return buf; | |
781 | } | |
782 | ||
78b526a4 | 783 | static int zr364xx_vidioc_try_fmt_vid_cap(struct file *file, void *priv, |
b7eee616 AJ |
784 | struct v4l2_format *f) |
785 | { | |
ccbf035a LVS |
786 | struct zr364xx_camera *cam = video_drvdata(file); |
787 | char pixelformat_name[5]; | |
b7eee616 | 788 | |
ccbf035a | 789 | if (cam == NULL) |
b7eee616 | 790 | return -ENODEV; |
b7eee616 | 791 | |
ccbf035a LVS |
792 | if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_JPEG) { |
793 | DBG("%s: unsupported pixelformat V4L2_PIX_FMT_%s\n", __func__, | |
794 | decode_fourcc(f->fmt.pix.pixelformat, pixelformat_name)); | |
b7eee616 | 795 | return -EINVAL; |
ccbf035a LVS |
796 | } |
797 | ||
8c5f32ac LVS |
798 | if (!(f->fmt.pix.width == 160 && f->fmt.pix.height == 120) && |
799 | !(f->fmt.pix.width == 640 && f->fmt.pix.height == 480)) { | |
800 | f->fmt.pix.width = 320; | |
801 | f->fmt.pix.height = 240; | |
802 | } | |
803 | ||
b7eee616 | 804 | f->fmt.pix.field = V4L2_FIELD_NONE; |
b7eee616 AJ |
805 | f->fmt.pix.bytesperline = f->fmt.pix.width * 2; |
806 | f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; | |
df462902 | 807 | f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG; |
ccbf035a LVS |
808 | DBG("%s: V4L2_PIX_FMT_%s (%d) ok!\n", __func__, |
809 | decode_fourcc(f->fmt.pix.pixelformat, pixelformat_name), | |
810 | f->fmt.pix.field); | |
b7eee616 AJ |
811 | return 0; |
812 | } | |
813 | ||
78b526a4 | 814 | static int zr364xx_vidioc_g_fmt_vid_cap(struct file *file, void *priv, |
b7eee616 AJ |
815 | struct v4l2_format *f) |
816 | { | |
b7eee616 AJ |
817 | struct zr364xx_camera *cam; |
818 | ||
ccbf035a | 819 | if (file == NULL) |
b7eee616 | 820 | return -ENODEV; |
ccbf035a | 821 | cam = video_drvdata(file); |
b7eee616 | 822 | |
ccbf035a | 823 | f->fmt.pix.pixelformat = formats[0].fourcc; |
b7eee616 AJ |
824 | f->fmt.pix.field = V4L2_FIELD_NONE; |
825 | f->fmt.pix.width = cam->width; | |
826 | f->fmt.pix.height = cam->height; | |
827 | f->fmt.pix.bytesperline = f->fmt.pix.width * 2; | |
828 | f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; | |
df462902 | 829 | f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG; |
b7eee616 AJ |
830 | return 0; |
831 | } | |
832 | ||
78b526a4 | 833 | static int zr364xx_vidioc_s_fmt_vid_cap(struct file *file, void *priv, |
b7eee616 AJ |
834 | struct v4l2_format *f) |
835 | { | |
ccbf035a LVS |
836 | struct zr364xx_camera *cam = video_drvdata(file); |
837 | struct videobuf_queue *q = &cam->vb_vidq; | |
838 | char pixelformat_name[5]; | |
839 | int ret = zr364xx_vidioc_try_fmt_vid_cap(file, cam, f); | |
8c5f32ac | 840 | int i; |
b7eee616 | 841 | |
ccbf035a LVS |
842 | if (ret < 0) |
843 | return ret; | |
844 | ||
845 | mutex_lock(&q->vb_lock); | |
846 | ||
847 | if (videobuf_queue_is_busy(&cam->vb_vidq)) { | |
848 | DBG("%s queue busy\n", __func__); | |
849 | ret = -EBUSY; | |
850 | goto out; | |
851 | } | |
b7eee616 | 852 | |
a065729d | 853 | if (cam->owner) { |
8c5f32ac LVS |
854 | DBG("%s can't change format after started\n", __func__); |
855 | ret = -EBUSY; | |
856 | goto out; | |
857 | } | |
858 | ||
859 | cam->width = f->fmt.pix.width; | |
860 | cam->height = f->fmt.pix.height; | |
a065729d | 861 | DBG("%s: %dx%d mode selected\n", __func__, |
8c5f32ac | 862 | cam->width, cam->height); |
b7eee616 AJ |
863 | f->fmt.pix.bytesperline = f->fmt.pix.width * 2; |
864 | f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; | |
df462902 | 865 | f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG; |
ccbf035a | 866 | cam->vb_vidq.field = f->fmt.pix.field; |
8c5f32ac LVS |
867 | |
868 | if (f->fmt.pix.width == 160 && f->fmt.pix.height == 120) | |
869 | mode = 1; | |
870 | else if (f->fmt.pix.width == 640 && f->fmt.pix.height == 480) | |
871 | mode = 2; | |
872 | else | |
873 | mode = 0; | |
874 | ||
875 | m0d1[0] = mode; | |
876 | m1[2].value = 0xf000 + mode; | |
877 | m2[1].value = 0xf000 + mode; | |
08135ba2 AJ |
878 | |
879 | /* special case for METHOD3, the modes are different */ | |
880 | if (cam->method == METHOD3) { | |
881 | switch (mode) { | |
882 | case 1: | |
883 | m2[1].value = 0xf000 + 4; | |
884 | break; | |
885 | case 2: | |
886 | m2[1].value = 0xf000 + 0; | |
887 | break; | |
888 | default: | |
889 | m2[1].value = 0xf000 + 1; | |
890 | break; | |
891 | } | |
892 | } | |
893 | ||
8c5f32ac LVS |
894 | header2[437] = cam->height / 256; |
895 | header2[438] = cam->height % 256; | |
896 | header2[439] = cam->width / 256; | |
897 | header2[440] = cam->width % 256; | |
898 | ||
899 | for (i = 0; init[cam->method][i].size != -1; i++) { | |
900 | ret = | |
901 | send_control_msg(cam->udev, 1, init[cam->method][i].value, | |
902 | 0, init[cam->method][i].bytes, | |
903 | init[cam->method][i].size); | |
904 | if (ret < 0) { | |
905 | dev_err(&cam->udev->dev, | |
906 | "error during resolution change sequence: %d\n", i); | |
907 | goto out; | |
908 | } | |
909 | } | |
910 | ||
911 | /* Added some delay here, since opening/closing the camera quickly, | |
912 | * like Ekiga does during its startup, can crash the webcam | |
913 | */ | |
914 | mdelay(100); | |
915 | cam->skip = 2; | |
ccbf035a LVS |
916 | ret = 0; |
917 | ||
918 | out: | |
919 | mutex_unlock(&q->vb_lock); | |
920 | ||
921 | DBG("%s: V4L2_PIX_FMT_%s (%d) ok!\n", __func__, | |
922 | decode_fourcc(f->fmt.pix.pixelformat, pixelformat_name), | |
923 | f->fmt.pix.field); | |
924 | return ret; | |
925 | } | |
926 | ||
927 | static int zr364xx_vidioc_reqbufs(struct file *file, void *priv, | |
928 | struct v4l2_requestbuffers *p) | |
929 | { | |
ccbf035a | 930 | struct zr364xx_camera *cam = video_drvdata(file); |
a065729d HV |
931 | |
932 | if (cam->owner && cam->owner != priv) | |
933 | return -EBUSY; | |
934 | return videobuf_reqbufs(&cam->vb_vidq, p); | |
ccbf035a LVS |
935 | } |
936 | ||
937 | static int zr364xx_vidioc_querybuf(struct file *file, | |
938 | void *priv, | |
939 | struct v4l2_buffer *p) | |
940 | { | |
941 | int rc; | |
942 | struct zr364xx_camera *cam = video_drvdata(file); | |
943 | rc = videobuf_querybuf(&cam->vb_vidq, p); | |
944 | return rc; | |
945 | } | |
946 | ||
947 | static int zr364xx_vidioc_qbuf(struct file *file, | |
948 | void *priv, | |
949 | struct v4l2_buffer *p) | |
950 | { | |
951 | int rc; | |
952 | struct zr364xx_camera *cam = video_drvdata(file); | |
76594c53 | 953 | _DBG("%s\n", __func__); |
a065729d HV |
954 | if (cam->owner && cam->owner != priv) |
955 | return -EBUSY; | |
ccbf035a LVS |
956 | rc = videobuf_qbuf(&cam->vb_vidq, p); |
957 | return rc; | |
958 | } | |
959 | ||
960 | static int zr364xx_vidioc_dqbuf(struct file *file, | |
961 | void *priv, | |
962 | struct v4l2_buffer *p) | |
963 | { | |
964 | int rc; | |
965 | struct zr364xx_camera *cam = video_drvdata(file); | |
76594c53 | 966 | _DBG("%s\n", __func__); |
a065729d HV |
967 | if (cam->owner && cam->owner != priv) |
968 | return -EBUSY; | |
ccbf035a LVS |
969 | rc = videobuf_dqbuf(&cam->vb_vidq, p, file->f_flags & O_NONBLOCK); |
970 | return rc; | |
971 | } | |
972 | ||
973 | static void read_pipe_completion(struct urb *purb) | |
974 | { | |
975 | struct zr364xx_pipeinfo *pipe_info; | |
976 | struct zr364xx_camera *cam; | |
977 | int pipe; | |
978 | ||
979 | pipe_info = purb->context; | |
76594c53 | 980 | _DBG("%s %p, status %d\n", __func__, purb, purb->status); |
ccbf035a LVS |
981 | if (pipe_info == NULL) { |
982 | printk(KERN_ERR KBUILD_MODNAME ": no context!\n"); | |
983 | return; | |
984 | } | |
985 | ||
986 | cam = pipe_info->cam; | |
987 | if (cam == NULL) { | |
988 | printk(KERN_ERR KBUILD_MODNAME ": no context!\n"); | |
989 | return; | |
990 | } | |
991 | ||
992 | /* if shutting down, do not resubmit, exit immediately */ | |
993 | if (purb->status == -ESHUTDOWN) { | |
994 | DBG("%s, err shutdown\n", __func__); | |
995 | pipe_info->err_count++; | |
996 | return; | |
997 | } | |
998 | ||
999 | if (pipe_info->state == 0) { | |
1000 | DBG("exiting USB pipe\n"); | |
1001 | return; | |
1002 | } | |
1003 | ||
50c8012c | 1004 | if (purb->actual_length > pipe_info->transfer_size) { |
ccbf035a LVS |
1005 | dev_err(&cam->udev->dev, "wrong number of bytes\n"); |
1006 | return; | |
1007 | } | |
1008 | ||
1009 | if (purb->status == 0) | |
1010 | zr364xx_read_video_callback(cam, pipe_info, purb); | |
1011 | else { | |
1012 | pipe_info->err_count++; | |
1013 | DBG("%s: failed URB %d\n", __func__, purb->status); | |
1014 | } | |
1015 | ||
1016 | pipe = usb_rcvbulkpipe(cam->udev, cam->read_endpoint); | |
1017 | ||
1018 | /* reuse urb */ | |
1019 | usb_fill_bulk_urb(pipe_info->stream_urb, cam->udev, | |
1020 | pipe, | |
1021 | pipe_info->transfer_buffer, | |
1022 | pipe_info->transfer_size, | |
1023 | read_pipe_completion, pipe_info); | |
1024 | ||
1025 | if (pipe_info->state != 0) { | |
1026 | purb->status = usb_submit_urb(pipe_info->stream_urb, | |
1027 | GFP_ATOMIC); | |
1028 | ||
1029 | if (purb->status) | |
1030 | dev_err(&cam->udev->dev, | |
1031 | "error submitting urb (error=%i)\n", | |
1032 | purb->status); | |
1033 | } else | |
1034 | DBG("read pipe complete state 0\n"); | |
1035 | } | |
1036 | ||
1037 | static int zr364xx_start_readpipe(struct zr364xx_camera *cam) | |
1038 | { | |
1039 | int pipe; | |
1040 | int retval; | |
1041 | struct zr364xx_pipeinfo *pipe_info = cam->pipe; | |
1042 | pipe = usb_rcvbulkpipe(cam->udev, cam->read_endpoint); | |
1043 | DBG("%s: start pipe IN x%x\n", __func__, cam->read_endpoint); | |
1044 | ||
1045 | pipe_info->state = 1; | |
1046 | pipe_info->err_count = 0; | |
1047 | pipe_info->stream_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1048 | if (!pipe_info->stream_urb) { | |
1049 | dev_err(&cam->udev->dev, "ReadStream: Unable to alloc URB\n"); | |
1050 | return -ENOMEM; | |
1051 | } | |
1052 | /* transfer buffer allocated in board_init */ | |
1053 | usb_fill_bulk_urb(pipe_info->stream_urb, cam->udev, | |
1054 | pipe, | |
1055 | pipe_info->transfer_buffer, | |
1056 | pipe_info->transfer_size, | |
1057 | read_pipe_completion, pipe_info); | |
1058 | ||
1059 | DBG("submitting URB %p\n", pipe_info->stream_urb); | |
1060 | retval = usb_submit_urb(pipe_info->stream_urb, GFP_KERNEL); | |
1061 | if (retval) { | |
1062 | printk(KERN_ERR KBUILD_MODNAME ": start read pipe failed\n"); | |
1063 | return retval; | |
1064 | } | |
1065 | ||
1066 | return 0; | |
1067 | } | |
1068 | ||
1069 | static void zr364xx_stop_readpipe(struct zr364xx_camera *cam) | |
1070 | { | |
1071 | struct zr364xx_pipeinfo *pipe_info; | |
1072 | ||
1073 | if (cam == NULL) { | |
1074 | printk(KERN_ERR KBUILD_MODNAME ": invalid device\n"); | |
1075 | return; | |
1076 | } | |
1077 | DBG("stop read pipe\n"); | |
1078 | pipe_info = cam->pipe; | |
1079 | if (pipe_info) { | |
1080 | if (pipe_info->state != 0) | |
1081 | pipe_info->state = 0; | |
1082 | ||
1083 | if (pipe_info->stream_urb) { | |
1084 | /* cancel urb */ | |
1085 | usb_kill_urb(pipe_info->stream_urb); | |
1086 | usb_free_urb(pipe_info->stream_urb); | |
1087 | pipe_info->stream_urb = NULL; | |
1088 | } | |
1089 | } | |
ccbf035a LVS |
1090 | return; |
1091 | } | |
1092 | ||
1093 | /* starts acquisition process */ | |
1094 | static int zr364xx_start_acquire(struct zr364xx_camera *cam) | |
1095 | { | |
1096 | int j; | |
1097 | ||
1098 | DBG("start acquire\n"); | |
1099 | ||
1100 | cam->last_frame = -1; | |
1101 | cam->cur_frame = 0; | |
1102 | for (j = 0; j < FRAMES; j++) { | |
1103 | cam->buffer.frame[j].ulState = ZR364XX_READ_IDLE; | |
1104 | cam->buffer.frame[j].cur_size = 0; | |
1105 | } | |
8c5f32ac | 1106 | cam->b_acquire = 1; |
ccbf035a LVS |
1107 | return 0; |
1108 | } | |
1109 | ||
1110 | static inline int zr364xx_stop_acquire(struct zr364xx_camera *cam) | |
1111 | { | |
1112 | cam->b_acquire = 0; | |
b7eee616 AJ |
1113 | return 0; |
1114 | } | |
1115 | ||
587a5765 | 1116 | static int zr364xx_prepare(struct zr364xx_camera *cam) |
b7eee616 | 1117 | { |
ccbf035a | 1118 | int res; |
587a5765 | 1119 | int i, j; |
a065729d HV |
1120 | |
1121 | for (i = 0; init[cam->method][i].size != -1; i++) { | |
1122 | res = send_control_msg(cam->udev, 1, init[cam->method][i].value, | |
1123 | 0, init[cam->method][i].bytes, | |
1124 | init[cam->method][i].size); | |
1125 | if (res < 0) { | |
1126 | dev_err(&cam->udev->dev, | |
1127 | "error during open sequence: %d\n", i); | |
1128 | return res; | |
1129 | } | |
ccbf035a LVS |
1130 | } |
1131 | ||
a065729d | 1132 | cam->skip = 2; |
ccbf035a LVS |
1133 | cam->last_frame = -1; |
1134 | cam->cur_frame = 0; | |
1135 | cam->frame_count = 0; | |
1136 | for (j = 0; j < FRAMES; j++) { | |
1137 | cam->buffer.frame[j].ulState = ZR364XX_READ_IDLE; | |
1138 | cam->buffer.frame[j].cur_size = 0; | |
1139 | } | |
587a5765 HV |
1140 | v4l2_ctrl_handler_setup(&cam->ctrl_handler); |
1141 | return 0; | |
1142 | } | |
1143 | ||
1144 | static int zr364xx_vidioc_streamon(struct file *file, void *priv, | |
1145 | enum v4l2_buf_type type) | |
1146 | { | |
1147 | struct zr364xx_camera *cam = video_drvdata(file); | |
1148 | int res; | |
1149 | ||
1150 | DBG("%s\n", __func__); | |
1151 | ||
1152 | if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
1153 | return -EINVAL; | |
1154 | ||
1155 | if (cam->owner && cam->owner != priv) | |
1156 | return -EBUSY; | |
1157 | ||
1158 | res = zr364xx_prepare(cam); | |
1159 | if (res) | |
1160 | return res; | |
ccbf035a LVS |
1161 | res = videobuf_streamon(&cam->vb_vidq); |
1162 | if (res == 0) { | |
1163 | zr364xx_start_acquire(cam); | |
a065729d | 1164 | cam->owner = file->private_data; |
ccbf035a | 1165 | } |
ccbf035a | 1166 | return res; |
b7eee616 AJ |
1167 | } |
1168 | ||
1169 | static int zr364xx_vidioc_streamoff(struct file *file, void *priv, | |
1170 | enum v4l2_buf_type type) | |
1171 | { | |
ccbf035a LVS |
1172 | struct zr364xx_camera *cam = video_drvdata(file); |
1173 | ||
1174 | DBG("%s\n", __func__); | |
5d317abe | 1175 | if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
ccbf035a | 1176 | return -EINVAL; |
a065729d HV |
1177 | if (cam->owner && cam->owner != priv) |
1178 | return -EBUSY; | |
ccbf035a | 1179 | zr364xx_stop_acquire(cam); |
a065729d | 1180 | return videobuf_streamoff(&cam->vb_vidq); |
b7eee616 AJ |
1181 | } |
1182 | ||
1183 | ||
1184 | /* open the camera */ | |
bec43661 | 1185 | static int zr364xx_open(struct file *file) |
b7eee616 | 1186 | { |
ccbf035a | 1187 | struct zr364xx_camera *cam = video_drvdata(file); |
a065729d | 1188 | int err; |
b7eee616 | 1189 | |
ccbf035a | 1190 | DBG("%s\n", __func__); |
b7eee616 | 1191 | |
a906f62f HV |
1192 | if (mutex_lock_interruptible(&cam->lock)) |
1193 | return -ERESTARTSYS; | |
69025c93 | 1194 | |
5d317abe HV |
1195 | err = v4l2_fh_open(file); |
1196 | if (err) | |
1197 | goto out; | |
1198 | ||
b7eee616 AJ |
1199 | /* Added some delay here, since opening/closing the camera quickly, |
1200 | * like Ekiga does during its startup, can crash the webcam | |
1201 | */ | |
1202 | mdelay(100); | |
69025c93 | 1203 | err = 0; |
b7eee616 | 1204 | |
69025c93 | 1205 | out: |
a906f62f | 1206 | mutex_unlock(&cam->lock); |
ccbf035a | 1207 | DBG("%s: %d\n", __func__, err); |
69025c93 | 1208 | return err; |
b7eee616 AJ |
1209 | } |
1210 | ||
a906f62f | 1211 | static void zr364xx_release(struct v4l2_device *v4l2_dev) |
ccbf035a | 1212 | { |
a906f62f HV |
1213 | struct zr364xx_camera *cam = |
1214 | container_of(v4l2_dev, struct zr364xx_camera, v4l2_dev); | |
ccbf035a LVS |
1215 | unsigned long i; |
1216 | ||
a906f62f | 1217 | v4l2_device_unregister(&cam->v4l2_dev); |
ccbf035a | 1218 | |
a906f62f | 1219 | videobuf_mmap_free(&cam->vb_vidq); |
ccbf035a LVS |
1220 | |
1221 | /* release sys buffers */ | |
1222 | for (i = 0; i < FRAMES; i++) { | |
1223 | if (cam->buffer.frame[i].lpvbits) { | |
1224 | DBG("vfree %p\n", cam->buffer.frame[i].lpvbits); | |
1225 | vfree(cam->buffer.frame[i].lpvbits); | |
1226 | } | |
1227 | cam->buffer.frame[i].lpvbits = NULL; | |
1228 | } | |
1229 | ||
1fc21a19 | 1230 | v4l2_ctrl_handler_free(&cam->ctrl_handler); |
ccbf035a LVS |
1231 | /* release transfer buffer */ |
1232 | kfree(cam->pipe->transfer_buffer); | |
ccbf035a | 1233 | kfree(cam); |
ccbf035a | 1234 | } |
b7eee616 AJ |
1235 | |
1236 | /* release the camera */ | |
a906f62f | 1237 | static int zr364xx_close(struct file *file) |
b7eee616 | 1238 | { |
b7eee616 AJ |
1239 | struct zr364xx_camera *cam; |
1240 | struct usb_device *udev; | |
a906f62f | 1241 | int i; |
b7eee616 | 1242 | |
ccbf035a LVS |
1243 | DBG("%s\n", __func__); |
1244 | cam = video_drvdata(file); | |
b7eee616 | 1245 | |
a906f62f | 1246 | mutex_lock(&cam->lock); |
b7eee616 AJ |
1247 | udev = cam->udev; |
1248 | ||
a065729d HV |
1249 | if (file->private_data == cam->owner) { |
1250 | /* turn off stream */ | |
ccbf035a LVS |
1251 | if (cam->b_acquire) |
1252 | zr364xx_stop_acquire(cam); | |
1253 | videobuf_streamoff(&cam->vb_vidq); | |
33d27a45 | 1254 | |
a065729d HV |
1255 | for (i = 0; i < 2; i++) { |
1256 | send_control_msg(udev, 1, init[cam->method][i].value, | |
1257 | 0, init[cam->method][i].bytes, | |
1258 | init[cam->method][i].size); | |
1259 | } | |
1260 | cam->owner = NULL; | |
b7eee616 AJ |
1261 | } |
1262 | ||
b7eee616 AJ |
1263 | /* Added some delay here, since opening/closing the camera quickly, |
1264 | * like Ekiga does during its startup, can crash the webcam | |
1265 | */ | |
1266 | mdelay(100); | |
a906f62f | 1267 | mutex_unlock(&cam->lock); |
5d317abe | 1268 | return v4l2_fh_release(file); |
b7eee616 AJ |
1269 | } |
1270 | ||
1271 | ||
1272 | static int zr364xx_mmap(struct file *file, struct vm_area_struct *vma) | |
1273 | { | |
ccbf035a LVS |
1274 | struct zr364xx_camera *cam = video_drvdata(file); |
1275 | int ret; | |
b7eee616 | 1276 | |
ccbf035a LVS |
1277 | if (cam == NULL) { |
1278 | DBG("%s: cam == NULL\n", __func__); | |
b7eee616 | 1279 | return -ENODEV; |
b7eee616 | 1280 | } |
ccbf035a | 1281 | DBG("mmap called, vma=0x%08lx\n", (unsigned long)vma); |
b7eee616 | 1282 | |
ccbf035a LVS |
1283 | ret = videobuf_mmap_mapper(&cam->vb_vidq, vma); |
1284 | ||
1285 | DBG("vma start=0x%08lx, size=%ld, ret=%d\n", | |
1286 | (unsigned long)vma->vm_start, | |
1287 | (unsigned long)vma->vm_end - (unsigned long)vma->vm_start, ret); | |
1288 | return ret; | |
b7eee616 AJ |
1289 | } |
1290 | ||
ccbf035a LVS |
1291 | static unsigned int zr364xx_poll(struct file *file, |
1292 | struct poll_table_struct *wait) | |
1293 | { | |
1294 | struct zr364xx_camera *cam = video_drvdata(file); | |
1295 | struct videobuf_queue *q = &cam->vb_vidq; | |
5d317abe | 1296 | unsigned res = v4l2_ctrl_poll(file, wait); |
ccbf035a | 1297 | |
5d317abe | 1298 | _DBG("%s\n", __func__); |
ccbf035a | 1299 | |
5d317abe | 1300 | return res | videobuf_poll_stream(file, q, wait); |
ccbf035a | 1301 | } |
b7eee616 | 1302 | |
1fc21a19 HV |
1303 | static const struct v4l2_ctrl_ops zr364xx_ctrl_ops = { |
1304 | .s_ctrl = zr364xx_s_ctrl, | |
1305 | }; | |
1306 | ||
bec43661 | 1307 | static const struct v4l2_file_operations zr364xx_fops = { |
b7eee616 AJ |
1308 | .owner = THIS_MODULE, |
1309 | .open = zr364xx_open, | |
a906f62f | 1310 | .release = zr364xx_close, |
b7eee616 AJ |
1311 | .read = zr364xx_read, |
1312 | .mmap = zr364xx_mmap, | |
a906f62f | 1313 | .unlocked_ioctl = video_ioctl2, |
ccbf035a | 1314 | .poll = zr364xx_poll, |
b7eee616 AJ |
1315 | }; |
1316 | ||
a399810c | 1317 | static const struct v4l2_ioctl_ops zr364xx_ioctl_ops = { |
b7eee616 | 1318 | .vidioc_querycap = zr364xx_vidioc_querycap, |
78b526a4 HV |
1319 | .vidioc_enum_fmt_vid_cap = zr364xx_vidioc_enum_fmt_vid_cap, |
1320 | .vidioc_try_fmt_vid_cap = zr364xx_vidioc_try_fmt_vid_cap, | |
1321 | .vidioc_s_fmt_vid_cap = zr364xx_vidioc_s_fmt_vid_cap, | |
1322 | .vidioc_g_fmt_vid_cap = zr364xx_vidioc_g_fmt_vid_cap, | |
b7eee616 AJ |
1323 | .vidioc_enum_input = zr364xx_vidioc_enum_input, |
1324 | .vidioc_g_input = zr364xx_vidioc_g_input, | |
1325 | .vidioc_s_input = zr364xx_vidioc_s_input, | |
1326 | .vidioc_streamon = zr364xx_vidioc_streamon, | |
1327 | .vidioc_streamoff = zr364xx_vidioc_streamoff, | |
ccbf035a LVS |
1328 | .vidioc_reqbufs = zr364xx_vidioc_reqbufs, |
1329 | .vidioc_querybuf = zr364xx_vidioc_querybuf, | |
1330 | .vidioc_qbuf = zr364xx_vidioc_qbuf, | |
1331 | .vidioc_dqbuf = zr364xx_vidioc_dqbuf, | |
5d317abe HV |
1332 | .vidioc_log_status = v4l2_ctrl_log_status, |
1333 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, | |
1334 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, | |
b7eee616 AJ |
1335 | }; |
1336 | ||
a399810c | 1337 | static struct video_device zr364xx_template = { |
a399810c | 1338 | .name = DRIVER_DESC, |
a399810c HV |
1339 | .fops = &zr364xx_fops, |
1340 | .ioctl_ops = &zr364xx_ioctl_ops, | |
2b99251f | 1341 | .release = video_device_release_empty, |
a399810c HV |
1342 | }; |
1343 | ||
b7eee616 AJ |
1344 | |
1345 | ||
1346 | /*******************/ | |
1347 | /* USB integration */ | |
1348 | /*******************/ | |
ccbf035a LVS |
1349 | static int zr364xx_board_init(struct zr364xx_camera *cam) |
1350 | { | |
1351 | struct zr364xx_pipeinfo *pipe = cam->pipe; | |
1352 | unsigned long i; | |
1353 | ||
1354 | DBG("board init: %p\n", cam); | |
1355 | memset(pipe, 0, sizeof(*pipe)); | |
1356 | pipe->cam = cam; | |
1357 | pipe->transfer_size = BUFFER_SIZE; | |
1358 | ||
1359 | pipe->transfer_buffer = kzalloc(pipe->transfer_size, | |
1360 | GFP_KERNEL); | |
1361 | if (pipe->transfer_buffer == NULL) { | |
1362 | DBG("out of memory!\n"); | |
1363 | return -ENOMEM; | |
1364 | } | |
1365 | ||
1366 | cam->b_acquire = 0; | |
1367 | cam->frame_count = 0; | |
1368 | ||
1369 | /*** start create system buffers ***/ | |
1370 | for (i = 0; i < FRAMES; i++) { | |
1371 | /* always allocate maximum size for system buffers */ | |
1372 | cam->buffer.frame[i].lpvbits = vmalloc(MAX_FRAME_SIZE); | |
1373 | ||
1374 | DBG("valloc %p, idx %lu, pdata %p\n", | |
1375 | &cam->buffer.frame[i], i, | |
1376 | cam->buffer.frame[i].lpvbits); | |
1377 | if (cam->buffer.frame[i].lpvbits == NULL) { | |
1378 | printk(KERN_INFO KBUILD_MODNAME ": out of memory. " | |
1379 | "Using less frames\n"); | |
1380 | break; | |
1381 | } | |
1382 | } | |
1383 | ||
1384 | if (i == 0) { | |
1385 | printk(KERN_INFO KBUILD_MODNAME ": out of memory. Aborting\n"); | |
1386 | kfree(cam->pipe->transfer_buffer); | |
1387 | cam->pipe->transfer_buffer = NULL; | |
1388 | return -ENOMEM; | |
1389 | } else | |
1390 | cam->buffer.dwFrames = i; | |
1391 | ||
1392 | /* make sure internal states are set */ | |
1393 | for (i = 0; i < FRAMES; i++) { | |
1394 | cam->buffer.frame[i].ulState = ZR364XX_READ_IDLE; | |
1395 | cam->buffer.frame[i].cur_size = 0; | |
1396 | } | |
1397 | ||
1398 | cam->cur_frame = 0; | |
1399 | cam->last_frame = -1; | |
1400 | /*** end create system buffers ***/ | |
1401 | ||
1402 | /* start read pipe */ | |
1403 | zr364xx_start_readpipe(cam); | |
1404 | DBG(": board initialized\n"); | |
1405 | return 0; | |
1406 | } | |
b7eee616 AJ |
1407 | |
1408 | static int zr364xx_probe(struct usb_interface *intf, | |
1409 | const struct usb_device_id *id) | |
1410 | { | |
1411 | struct usb_device *udev = interface_to_usbdev(intf); | |
1412 | struct zr364xx_camera *cam = NULL; | |
ccbf035a LVS |
1413 | struct usb_host_interface *iface_desc; |
1414 | struct usb_endpoint_descriptor *endpoint; | |
1fc21a19 | 1415 | struct v4l2_ctrl_handler *hdl; |
783aa8fa | 1416 | int err; |
ccbf035a | 1417 | int i; |
b7eee616 | 1418 | |
ccbf035a | 1419 | DBG("probing...\n"); |
b7eee616 | 1420 | |
a482f327 GKH |
1421 | dev_info(&intf->dev, DRIVER_DESC " compatible webcam plugged\n"); |
1422 | dev_info(&intf->dev, "model %04x:%04x detected\n", | |
1423 | le16_to_cpu(udev->descriptor.idVendor), | |
1424 | le16_to_cpu(udev->descriptor.idProduct)); | |
b7eee616 | 1425 | |
783aa8fa AM |
1426 | cam = kzalloc(sizeof(struct zr364xx_camera), GFP_KERNEL); |
1427 | if (cam == NULL) { | |
a482f327 | 1428 | dev_err(&udev->dev, "cam: out of memory !\n"); |
783aa8fa | 1429 | return -ENOMEM; |
b7eee616 | 1430 | } |
a906f62f HV |
1431 | |
1432 | cam->v4l2_dev.release = zr364xx_release; | |
1433 | err = v4l2_device_register(&intf->dev, &cam->v4l2_dev); | |
1434 | if (err < 0) { | |
1435 | dev_err(&udev->dev, "couldn't register v4l2_device\n"); | |
1436 | kfree(cam); | |
1437 | return err; | |
1438 | } | |
1fc21a19 HV |
1439 | hdl = &cam->ctrl_handler; |
1440 | v4l2_ctrl_handler_init(hdl, 1); | |
1441 | v4l2_ctrl_new_std(hdl, &zr364xx_ctrl_ops, | |
1442 | V4L2_CID_BRIGHTNESS, 0, 127, 1, 64); | |
1443 | if (hdl->error) { | |
1444 | err = hdl->error; | |
1445 | dev_err(&udev->dev, "couldn't register control\n"); | |
1446 | goto fail; | |
1447 | } | |
b7eee616 AJ |
1448 | /* save the init method used by this camera */ |
1449 | cam->method = id->driver_info; | |
a906f62f | 1450 | mutex_init(&cam->lock); |
2b99251f | 1451 | cam->vdev = zr364xx_template; |
a906f62f HV |
1452 | cam->vdev.lock = &cam->lock; |
1453 | cam->vdev.v4l2_dev = &cam->v4l2_dev; | |
1fc21a19 | 1454 | cam->vdev.ctrl_handler = &cam->ctrl_handler; |
2b99251f | 1455 | video_set_drvdata(&cam->vdev, cam); |
b7eee616 AJ |
1456 | |
1457 | cam->udev = udev; | |
1458 | ||
b7eee616 AJ |
1459 | switch (mode) { |
1460 | case 1: | |
a482f327 | 1461 | dev_info(&udev->dev, "160x120 mode selected\n"); |
b7eee616 AJ |
1462 | cam->width = 160; |
1463 | cam->height = 120; | |
1464 | break; | |
1465 | case 2: | |
a482f327 | 1466 | dev_info(&udev->dev, "640x480 mode selected\n"); |
b7eee616 AJ |
1467 | cam->width = 640; |
1468 | cam->height = 480; | |
1469 | break; | |
1470 | default: | |
a482f327 | 1471 | dev_info(&udev->dev, "320x240 mode selected\n"); |
b7eee616 AJ |
1472 | cam->width = 320; |
1473 | cam->height = 240; | |
1474 | break; | |
1475 | } | |
1476 | ||
1477 | m0d1[0] = mode; | |
1478 | m1[2].value = 0xf000 + mode; | |
1479 | m2[1].value = 0xf000 + mode; | |
08135ba2 AJ |
1480 | |
1481 | /* special case for METHOD3, the modes are different */ | |
1482 | if (cam->method == METHOD3) { | |
1483 | switch (mode) { | |
1484 | case 1: | |
1485 | m2[1].value = 0xf000 + 4; | |
1486 | break; | |
1487 | case 2: | |
1488 | m2[1].value = 0xf000 + 0; | |
1489 | break; | |
1490 | default: | |
1491 | m2[1].value = 0xf000 + 1; | |
1492 | break; | |
1493 | } | |
1494 | } | |
1495 | ||
b7eee616 AJ |
1496 | header2[437] = cam->height / 256; |
1497 | header2[438] = cam->height % 256; | |
1498 | header2[439] = cam->width / 256; | |
1499 | header2[440] = cam->width % 256; | |
1500 | ||
1501 | cam->nb = 0; | |
ccbf035a LVS |
1502 | |
1503 | DBG("dev: %p, udev %p interface %p\n", cam, cam->udev, intf); | |
1504 | ||
1505 | /* set up the endpoint information */ | |
1506 | iface_desc = intf->cur_altsetting; | |
1507 | DBG("num endpoints %d\n", iface_desc->desc.bNumEndpoints); | |
1508 | for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { | |
1509 | endpoint = &iface_desc->endpoint[i].desc; | |
1510 | if (!cam->read_endpoint && usb_endpoint_is_bulk_in(endpoint)) { | |
1511 | /* we found the bulk in endpoint */ | |
1512 | cam->read_endpoint = endpoint->bEndpointAddress; | |
1513 | } | |
1514 | } | |
b7eee616 | 1515 | |
ccbf035a | 1516 | if (!cam->read_endpoint) { |
1fc21a19 | 1517 | err = -ENOMEM; |
ccbf035a | 1518 | dev_err(&intf->dev, "Could not find bulk-in endpoint\n"); |
1fc21a19 | 1519 | goto fail; |
ccbf035a LVS |
1520 | } |
1521 | ||
1522 | /* v4l */ | |
1523 | INIT_LIST_HEAD(&cam->vidq.active); | |
1524 | cam->vidq.cam = cam; | |
b7eee616 AJ |
1525 | |
1526 | usb_set_intfdata(intf, cam); | |
1527 | ||
ccbf035a LVS |
1528 | /* load zr364xx board specific */ |
1529 | err = zr364xx_board_init(cam); | |
1fc21a19 HV |
1530 | if (!err) |
1531 | err = v4l2_ctrl_handler_setup(hdl); | |
1532 | if (err) | |
1533 | goto fail; | |
ccbf035a LVS |
1534 | |
1535 | spin_lock_init(&cam->slock); | |
1536 | ||
a065729d HV |
1537 | cam->fmt = formats; |
1538 | ||
1539 | videobuf_queue_vmalloc_init(&cam->vb_vidq, &zr364xx_video_qops, | |
1540 | NULL, &cam->slock, | |
1541 | V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
1542 | V4L2_FIELD_NONE, | |
1543 | sizeof(struct zr364xx_buffer), cam, &cam->lock); | |
1544 | ||
2b99251f HV |
1545 | err = video_register_device(&cam->vdev, VFL_TYPE_GRABBER, -1); |
1546 | if (err) { | |
1547 | dev_err(&udev->dev, "video_register_device failed\n"); | |
1fc21a19 | 1548 | goto fail; |
2b99251f HV |
1549 | } |
1550 | ||
38c7c036 | 1551 | dev_info(&udev->dev, DRIVER_DESC " controlling device %s\n", |
2b99251f | 1552 | video_device_node_name(&cam->vdev)); |
b7eee616 | 1553 | return 0; |
1fc21a19 HV |
1554 | |
1555 | fail: | |
1556 | v4l2_ctrl_handler_free(hdl); | |
1557 | v4l2_device_unregister(&cam->v4l2_dev); | |
1558 | kfree(cam); | |
1559 | return err; | |
b7eee616 AJ |
1560 | } |
1561 | ||
1562 | ||
1563 | static void zr364xx_disconnect(struct usb_interface *intf) | |
1564 | { | |
1565 | struct zr364xx_camera *cam = usb_get_intfdata(intf); | |
a906f62f HV |
1566 | |
1567 | mutex_lock(&cam->lock); | |
b7eee616 | 1568 | usb_set_intfdata(intf, NULL); |
a482f327 | 1569 | dev_info(&intf->dev, DRIVER_DESC " webcam unplugged\n"); |
a906f62f HV |
1570 | video_unregister_device(&cam->vdev); |
1571 | v4l2_device_disconnect(&cam->v4l2_dev); | |
1572 | ||
1573 | /* stops the read pipe if it is running */ | |
1574 | if (cam->b_acquire) | |
1575 | zr364xx_stop_acquire(cam); | |
1576 | ||
1577 | zr364xx_stop_readpipe(cam); | |
1578 | mutex_unlock(&cam->lock); | |
1579 | v4l2_device_put(&cam->v4l2_dev); | |
b7eee616 AJ |
1580 | } |
1581 | ||
1582 | ||
587a5765 HV |
1583 | #ifdef CONFIG_PM |
1584 | static int zr364xx_suspend(struct usb_interface *intf, pm_message_t message) | |
1585 | { | |
1586 | struct zr364xx_camera *cam = usb_get_intfdata(intf); | |
1587 | ||
1588 | cam->was_streaming = cam->b_acquire; | |
1589 | if (!cam->was_streaming) | |
1590 | return 0; | |
1591 | zr364xx_stop_acquire(cam); | |
1592 | zr364xx_stop_readpipe(cam); | |
1593 | return 0; | |
1594 | } | |
1595 | ||
1596 | static int zr364xx_resume(struct usb_interface *intf) | |
1597 | { | |
1598 | struct zr364xx_camera *cam = usb_get_intfdata(intf); | |
1599 | int res; | |
1600 | ||
1601 | if (!cam->was_streaming) | |
1602 | return 0; | |
1603 | ||
1604 | zr364xx_start_readpipe(cam); | |
1605 | res = zr364xx_prepare(cam); | |
1606 | if (!res) | |
1607 | zr364xx_start_acquire(cam); | |
1608 | return res; | |
1609 | } | |
1610 | #endif | |
b7eee616 AJ |
1611 | |
1612 | /**********************/ | |
1613 | /* Module integration */ | |
1614 | /**********************/ | |
1615 | ||
1616 | static struct usb_driver zr364xx_driver = { | |
1617 | .name = "zr364xx", | |
1618 | .probe = zr364xx_probe, | |
1619 | .disconnect = zr364xx_disconnect, | |
587a5765 HV |
1620 | #ifdef CONFIG_PM |
1621 | .suspend = zr364xx_suspend, | |
1622 | .resume = zr364xx_resume, | |
1623 | .reset_resume = zr364xx_resume, | |
1624 | #endif | |
b7eee616 AJ |
1625 | .id_table = device_table |
1626 | }; | |
1627 | ||
ecb3b2b3 | 1628 | module_usb_driver(zr364xx_driver); |
b7eee616 AJ |
1629 | |
1630 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
1631 | MODULE_DESCRIPTION(DRIVER_DESC); | |
1632 | MODULE_LICENSE("GPL"); | |
1990d50b | 1633 | MODULE_VERSION(DRIVER_VERSION); |