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30#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
31
32#define MODULE_NAME "stv0680"
33
34#include "gspca.h"
35
36MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
37MODULE_DESCRIPTION("STV0680 USB Camera Driver");
38MODULE_LICENSE("GPL");
39
40
41struct sd {
42 struct gspca_dev gspca_dev;
43 struct v4l2_pix_format mode;
44 u8 orig_mode;
45 u8 video_mode;
46 u8 current_mode;
47};
48
49static int stv_sndctrl(struct gspca_dev *gspca_dev, int set, u8 req, u16 val,
50 int size)
51{
52 int ret = -1;
53 u8 req_type = 0;
54 unsigned int pipe = 0;
55
56 switch (set) {
57 case 0:
58 req_type = USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT;
59 pipe = usb_rcvctrlpipe(gspca_dev->dev, 0);
60 break;
61 case 1:
62 req_type = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT;
63 pipe = usb_sndctrlpipe(gspca_dev->dev, 0);
64 break;
65 case 2:
66 req_type = USB_DIR_IN | USB_RECIP_DEVICE;
67 pipe = usb_rcvctrlpipe(gspca_dev->dev, 0);
68 break;
69 case 3:
70 req_type = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE;
71 pipe = usb_sndctrlpipe(gspca_dev->dev, 0);
72 break;
73 }
74
75 ret = usb_control_msg(gspca_dev->dev, pipe,
76 req, req_type,
77 val, 0, gspca_dev->usb_buf, size, 500);
78
79 if ((ret < 0) && (req != 0x0a))
80 pr_err("usb_control_msg error %i, request = 0x%x, error = %i\n",
81 set, req, ret);
82
83 return ret;
84}
85
86static int stv0680_handle_error(struct gspca_dev *gspca_dev, int ret)
87{
88 stv_sndctrl(gspca_dev, 0, 0x80, 0, 0x02);
89 PERR("last error: %i, command = 0x%x",
90 gspca_dev->usb_buf[0], gspca_dev->usb_buf[1]);
91 return ret;
92}
93
94static int stv0680_get_video_mode(struct gspca_dev *gspca_dev)
95{
96
97 memset(gspca_dev->usb_buf, 0, 8);
98 gspca_dev->usb_buf[0] = 0x0f;
99
100 if (stv_sndctrl(gspca_dev, 0, 0x87, 0, 0x08) != 0x08) {
101 PERR("Get_Camera_Mode failed");
102 return stv0680_handle_error(gspca_dev, -EIO);
103 }
104
105 return gspca_dev->usb_buf[0];
106}
107
108static int stv0680_set_video_mode(struct gspca_dev *gspca_dev, u8 mode)
109{
110 struct sd *sd = (struct sd *) gspca_dev;
111
112 if (sd->current_mode == mode)
113 return 0;
114
115 memset(gspca_dev->usb_buf, 0, 8);
116 gspca_dev->usb_buf[0] = mode;
117
118 if (stv_sndctrl(gspca_dev, 3, 0x07, 0x0100, 0x08) != 0x08) {
119 PERR("Set_Camera_Mode failed");
120 return stv0680_handle_error(gspca_dev, -EIO);
121 }
122
123
124 if (stv0680_get_video_mode(gspca_dev) != mode) {
125 PERR("Error setting camera video mode!");
126 return -EIO;
127 }
128
129 sd->current_mode = mode;
130
131 return 0;
132}
133
134
135static int sd_config(struct gspca_dev *gspca_dev,
136 const struct usb_device_id *id)
137{
138 int ret;
139 struct sd *sd = (struct sd *) gspca_dev;
140 struct cam *cam = &gspca_dev->cam;
141
142
143
144 msleep(1000);
145
146
147 if (stv_sndctrl(gspca_dev, 0, 0x88, 0x5678, 0x02) != 0x02 ||
148 gspca_dev->usb_buf[0] != 0x56 || gspca_dev->usb_buf[1] != 0x78) {
149 PERR("STV(e): camera ping failed!!");
150 return stv0680_handle_error(gspca_dev, -ENODEV);
151 }
152
153
154 if (stv_sndctrl(gspca_dev, 2, 0x06, 0x0200, 0x09) != 0x09)
155 return stv0680_handle_error(gspca_dev, -ENODEV);
156
157 if (stv_sndctrl(gspca_dev, 2, 0x06, 0x0200, 0x22) != 0x22 ||
158 gspca_dev->usb_buf[7] != 0xa0 || gspca_dev->usb_buf[8] != 0x23) {
159 PERR("Could not get descriptor 0200.");
160 return stv0680_handle_error(gspca_dev, -ENODEV);
161 }
162 if (stv_sndctrl(gspca_dev, 0, 0x8a, 0, 0x02) != 0x02)
163 return stv0680_handle_error(gspca_dev, -ENODEV);
164 if (stv_sndctrl(gspca_dev, 0, 0x8b, 0, 0x24) != 0x24)
165 return stv0680_handle_error(gspca_dev, -ENODEV);
166 if (stv_sndctrl(gspca_dev, 0, 0x85, 0, 0x10) != 0x10)
167 return stv0680_handle_error(gspca_dev, -ENODEV);
168
169 if (!(gspca_dev->usb_buf[7] & 0x09)) {
170 PERR("Camera supports neither CIF nor QVGA mode");
171 return -ENODEV;
172 }
173 if (gspca_dev->usb_buf[7] & 0x01)
174 PDEBUG(D_PROBE, "Camera supports CIF mode");
175 if (gspca_dev->usb_buf[7] & 0x02)
176 PDEBUG(D_PROBE, "Camera supports VGA mode");
177 if (gspca_dev->usb_buf[7] & 0x04)
178 PDEBUG(D_PROBE, "Camera supports QCIF mode");
179 if (gspca_dev->usb_buf[7] & 0x08)
180 PDEBUG(D_PROBE, "Camera supports QVGA mode");
181
182 if (gspca_dev->usb_buf[7] & 0x01)
183 sd->video_mode = 0x00;
184 else
185 sd->video_mode = 0x03;
186
187
188 PDEBUG(D_PROBE, "Firmware rev is %i.%i",
189 gspca_dev->usb_buf[0], gspca_dev->usb_buf[1]);
190 PDEBUG(D_PROBE, "ASIC rev is %i.%i",
191 gspca_dev->usb_buf[2], gspca_dev->usb_buf[3]);
192 PDEBUG(D_PROBE, "Sensor ID is %i",
193 (gspca_dev->usb_buf[4]*16) + (gspca_dev->usb_buf[5]>>4));
194
195
196 ret = stv0680_get_video_mode(gspca_dev);
197 if (ret < 0)
198 return ret;
199 sd->current_mode = sd->orig_mode = ret;
200
201 ret = stv0680_set_video_mode(gspca_dev, sd->video_mode);
202 if (ret < 0)
203 return ret;
204
205
206 if (stv_sndctrl(gspca_dev, 0, 0x8f, 0, 0x10) != 0x10)
207 return stv0680_handle_error(gspca_dev, -EIO);
208
209 cam->bulk = 1;
210 cam->bulk_nurbs = 1;
211 cam->bulk_size = (gspca_dev->usb_buf[0] << 24) |
212 (gspca_dev->usb_buf[1] << 16) |
213 (gspca_dev->usb_buf[2] << 8) |
214 (gspca_dev->usb_buf[3]);
215 sd->mode.width = (gspca_dev->usb_buf[4] << 8) |
216 (gspca_dev->usb_buf[5]);
217 sd->mode.height = (gspca_dev->usb_buf[6] << 8) |
218 (gspca_dev->usb_buf[7]);
219 sd->mode.pixelformat = V4L2_PIX_FMT_STV0680;
220 sd->mode.field = V4L2_FIELD_NONE;
221 sd->mode.bytesperline = sd->mode.width;
222 sd->mode.sizeimage = cam->bulk_size;
223 sd->mode.colorspace = V4L2_COLORSPACE_SRGB;
224
225
226
227 cam->cam_mode = &sd->mode;
228 cam->nmodes = 1;
229
230
231 ret = stv0680_set_video_mode(gspca_dev, sd->orig_mode);
232 if (ret < 0)
233 return ret;
234
235 if (stv_sndctrl(gspca_dev, 2, 0x06, 0x0100, 0x12) != 0x12 ||
236 gspca_dev->usb_buf[8] != 0x53 || gspca_dev->usb_buf[9] != 0x05) {
237 pr_err("Could not get descriptor 0100\n");
238 return stv0680_handle_error(gspca_dev, -EIO);
239 }
240
241 return 0;
242}
243
244
245static int sd_init(struct gspca_dev *gspca_dev)
246{
247 return 0;
248}
249
250
251static int sd_start(struct gspca_dev *gspca_dev)
252{
253 int ret;
254 struct sd *sd = (struct sd *) gspca_dev;
255
256 ret = stv0680_set_video_mode(gspca_dev, sd->video_mode);
257 if (ret < 0)
258 return ret;
259
260 if (stv_sndctrl(gspca_dev, 0, 0x85, 0, 0x10) != 0x10)
261 return stv0680_handle_error(gspca_dev, -EIO);
262
263
264
265
266
267 if (stv_sndctrl(gspca_dev, 1, 0x09, sd->video_mode << 8, 0x0) != 0x0)
268 return stv0680_handle_error(gspca_dev, -EIO);
269
270 return 0;
271}
272
273static void sd_stopN(struct gspca_dev *gspca_dev)
274{
275
276 if (stv_sndctrl(gspca_dev, 1, 0x04, 0x0000, 0x0) != 0x0)
277 stv0680_handle_error(gspca_dev, -EIO);
278}
279
280static void sd_stop0(struct gspca_dev *gspca_dev)
281{
282 struct sd *sd = (struct sd *) gspca_dev;
283
284 if (!sd->gspca_dev.present)
285 return;
286
287 stv0680_set_video_mode(gspca_dev, sd->orig_mode);
288}
289
290static void sd_pkt_scan(struct gspca_dev *gspca_dev,
291 u8 *data,
292 int len)
293{
294 struct sd *sd = (struct sd *) gspca_dev;
295
296
297
298
299
300 if (len != sd->mode.sizeimage) {
301 gspca_dev->last_packet_type = DISCARD_PACKET;
302 return;
303 }
304
305
306
307
308 gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
309
310
311 gspca_frame_add(gspca_dev, FIRST_PACKET, data, len);
312}
313
314
315static const struct sd_desc sd_desc = {
316 .name = MODULE_NAME,
317 .config = sd_config,
318 .init = sd_init,
319 .start = sd_start,
320 .stopN = sd_stopN,
321 .stop0 = sd_stop0,
322 .pkt_scan = sd_pkt_scan,
323};
324
325
326static const struct usb_device_id device_table[] = {
327 {USB_DEVICE(0x0553, 0x0202)},
328 {USB_DEVICE(0x041e, 0x4007)},
329 {}
330};
331MODULE_DEVICE_TABLE(usb, device_table);
332
333
334static int sd_probe(struct usb_interface *intf,
335 const struct usb_device_id *id)
336{
337 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
338 THIS_MODULE);
339}
340
341static struct usb_driver sd_driver = {
342 .name = MODULE_NAME,
343 .id_table = device_table,
344 .probe = sd_probe,
345 .disconnect = gspca_disconnect,
346#ifdef CONFIG_PM
347 .suspend = gspca_suspend,
348 .resume = gspca_resume,
349 .reset_resume = gspca_resume,
350#endif
351};
352
353module_usb_driver(sd_driver);
354