1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Quickcam cameras initialization data
4 *
5 * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
6 */
7 #define MODULE_NAME "tv8532"
8
9 #include "gspca.h"
10
11 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
12 MODULE_DESCRIPTION("TV8532 USB Camera Driver");
13 MODULE_LICENSE("GPL");
14
15 /* specific webcam descriptor */
16 struct sd {
17 struct gspca_dev gspca_dev; /* !! must be the first item */
18
19 __u8 packet;
20 };
21
22 static const struct v4l2_pix_format sif_mode[] = {
23 {176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
24 .bytesperline = 176,
25 .sizeimage = 176 * 144,
26 .colorspace = V4L2_COLORSPACE_SRGB,
27 .priv = 1},
28 {352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
29 .bytesperline = 352,
30 .sizeimage = 352 * 288,
31 .colorspace = V4L2_COLORSPACE_SRGB,
32 .priv = 0},
33 };
34
35 /* TV-8532A (ICM532A) registers (LE) */
36 #define R00_PART_CONTROL 0x00
37 #define LATENT_CHANGE 0x80
38 #define EXPO_CHANGE 0x04
39 #define R01_TIMING_CONTROL_LOW 0x01
40 #define CMD_EEprom_Open 0x30
41 #define CMD_EEprom_Close 0x29
42 #define R03_TABLE_ADDR 0x03
43 #define R04_WTRAM_DATA_L 0x04
44 #define R05_WTRAM_DATA_M 0x05
45 #define R06_WTRAM_DATA_H 0x06
46 #define R07_TABLE_LEN 0x07
47 #define R08_RAM_WRITE_ACTION 0x08
48 #define R0C_AD_WIDTHL 0x0c
49 #define R0D_AD_WIDTHH 0x0d
50 #define R0E_AD_HEIGHTL 0x0e
51 #define R0F_AD_HEIGHTH 0x0f
52 #define R10_AD_COL_BEGINL 0x10
53 #define R11_AD_COL_BEGINH 0x11
54 #define MIRROR 0x04 /* [10] */
55 #define R14_AD_ROW_BEGINL 0x14
56 #define R15_AD_ROWBEGINH 0x15
57 #define R1C_AD_EXPOSE_TIMEL 0x1c
58 #define R20_GAIN_G1L 0x20
59 #define R21_GAIN_G1H 0x21
60 #define R22_GAIN_RL 0x22
61 #define R23_GAIN_RH 0x23
62 #define R24_GAIN_BL 0x24
63 #define R25_GAIN_BH 0x25
64 #define R26_GAIN_G2L 0x26
65 #define R27_GAIN_G2H 0x27
66 #define R28_QUANT 0x28
67 #define R29_LINE 0x29
68 #define R2C_POLARITY 0x2c
69 #define R2D_POINT 0x2d
70 #define R2E_POINTH 0x2e
71 #define R2F_POINTB 0x2f
72 #define R30_POINTBH 0x30
73 #define R31_UPD 0x31
74 #define R2A_HIGH_BUDGET 0x2a
75 #define R2B_LOW_BUDGET 0x2b
76 #define R34_VID 0x34
77 #define R35_VIDH 0x35
78 #define R36_PID 0x36
79 #define R37_PIDH 0x37
80 #define R39_Test1 0x39 /* GPIO */
81 #define R3B_Test3 0x3b /* GPIO */
82 #define R83_AD_IDH 0x83
83 #define R91_AD_SLOPEREG 0x91
84 #define R94_AD_BITCONTROL 0x94
85
86 static const u8 eeprom_data[][3] = {
87 /* dataH dataM dataL */
88 {0x01, 0x00, 0x01},
89 {0x01, 0x80, 0x11},
90 {0x05, 0x00, 0x14},
91 {0x05, 0x00, 0x1c},
92 {0x0d, 0x00, 0x1e},
93 {0x05, 0x00, 0x1f},
94 {0x05, 0x05, 0x19},
95 {0x05, 0x01, 0x1b},
96 {0x05, 0x09, 0x1e},
97 {0x0d, 0x89, 0x2e},
98 {0x05, 0x89, 0x2f},
99 {0x05, 0x0d, 0xd9},
100 {0x05, 0x09, 0xf1},
101 };
102
103
104 /* write 1 byte */
reg_w1(struct gspca_dev * gspca_dev,__u16 index,__u8 value)105 static void reg_w1(struct gspca_dev *gspca_dev,
106 __u16 index, __u8 value)
107 {
108 gspca_dev->usb_buf[0] = value;
109 usb_control_msg(gspca_dev->dev,
110 usb_sndctrlpipe(gspca_dev->dev, 0),
111 0x02,
112 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
113 0, /* value */
114 index, gspca_dev->usb_buf, 1, 500);
115 }
116
117 /* write 2 bytes */
reg_w2(struct gspca_dev * gspca_dev,u16 index,u16 value)118 static void reg_w2(struct gspca_dev *gspca_dev,
119 u16 index, u16 value)
120 {
121 gspca_dev->usb_buf[0] = value;
122 gspca_dev->usb_buf[1] = value >> 8;
123 usb_control_msg(gspca_dev->dev,
124 usb_sndctrlpipe(gspca_dev->dev, 0),
125 0x02,
126 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
127 0, /* value */
128 index, gspca_dev->usb_buf, 2, 500);
129 }
130
tv_8532WriteEEprom(struct gspca_dev * gspca_dev)131 static void tv_8532WriteEEprom(struct gspca_dev *gspca_dev)
132 {
133 int i;
134
135 reg_w1(gspca_dev, R01_TIMING_CONTROL_LOW, CMD_EEprom_Open);
136 for (i = 0; i < ARRAY_SIZE(eeprom_data); i++) {
137 reg_w1(gspca_dev, R03_TABLE_ADDR, i);
138 reg_w1(gspca_dev, R04_WTRAM_DATA_L, eeprom_data[i][2]);
139 reg_w1(gspca_dev, R05_WTRAM_DATA_M, eeprom_data[i][1]);
140 reg_w1(gspca_dev, R06_WTRAM_DATA_H, eeprom_data[i][0]);
141 reg_w1(gspca_dev, R08_RAM_WRITE_ACTION, 0);
142 }
143 reg_w1(gspca_dev, R07_TABLE_LEN, i);
144 reg_w1(gspca_dev, R01_TIMING_CONTROL_LOW, CMD_EEprom_Close);
145 }
146
147 /* this function is called at probe time */
sd_config(struct gspca_dev * gspca_dev,const struct usb_device_id * id)148 static int sd_config(struct gspca_dev *gspca_dev,
149 const struct usb_device_id *id)
150 {
151 struct cam *cam;
152
153 cam = &gspca_dev->cam;
154 cam->cam_mode = sif_mode;
155 cam->nmodes = ARRAY_SIZE(sif_mode);
156
157 return 0;
158 }
159
tv_8532_setReg(struct gspca_dev * gspca_dev)160 static void tv_8532_setReg(struct gspca_dev *gspca_dev)
161 {
162 reg_w1(gspca_dev, R3B_Test3, 0x0a); /* Test0Sel = 10 */
163 /******************************************************/
164 reg_w1(gspca_dev, R0E_AD_HEIGHTL, 0x90);
165 reg_w1(gspca_dev, R0F_AD_HEIGHTH, 0x01);
166 reg_w2(gspca_dev, R1C_AD_EXPOSE_TIMEL, 0x018f);
167 reg_w1(gspca_dev, R10_AD_COL_BEGINL, 0x44);
168 /* begin active line */
169 reg_w1(gspca_dev, R11_AD_COL_BEGINH, 0x00);
170 /* mirror and digital gain */
171 reg_w1(gspca_dev, R14_AD_ROW_BEGINL, 0x0a);
172
173 reg_w1(gspca_dev, R94_AD_BITCONTROL, 0x02);
174 reg_w1(gspca_dev, R91_AD_SLOPEREG, 0x00);
175 reg_w1(gspca_dev, R00_PART_CONTROL, LATENT_CHANGE | EXPO_CHANGE);
176 /* = 0x84 */
177 }
178
179 /* this function is called at probe and resume time */
sd_init(struct gspca_dev * gspca_dev)180 static int sd_init(struct gspca_dev *gspca_dev)
181 {
182 tv_8532WriteEEprom(gspca_dev);
183
184 return 0;
185 }
186
setexposure(struct gspca_dev * gspca_dev,s32 val)187 static void setexposure(struct gspca_dev *gspca_dev, s32 val)
188 {
189 reg_w2(gspca_dev, R1C_AD_EXPOSE_TIMEL, val);
190 reg_w1(gspca_dev, R00_PART_CONTROL, LATENT_CHANGE | EXPO_CHANGE);
191 /* 0x84 */
192 }
193
setgain(struct gspca_dev * gspca_dev,s32 val)194 static void setgain(struct gspca_dev *gspca_dev, s32 val)
195 {
196 reg_w2(gspca_dev, R20_GAIN_G1L, val);
197 reg_w2(gspca_dev, R22_GAIN_RL, val);
198 reg_w2(gspca_dev, R24_GAIN_BL, val);
199 reg_w2(gspca_dev, R26_GAIN_G2L, val);
200 }
201
202 /* -- start the camera -- */
sd_start(struct gspca_dev * gspca_dev)203 static int sd_start(struct gspca_dev *gspca_dev)
204 {
205 struct sd *sd = (struct sd *) gspca_dev;
206
207 reg_w1(gspca_dev, R0C_AD_WIDTHL, 0xe8); /* 0x20; 0x0c */
208 reg_w1(gspca_dev, R0D_AD_WIDTHH, 0x03);
209
210 /************************************************/
211 reg_w1(gspca_dev, R28_QUANT, 0x90);
212 /* 0x72 compressed mode 0x28 */
213 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
214 /* 176x144 */
215 reg_w1(gspca_dev, R29_LINE, 0x41);
216 /* CIF - 2 lines/packet */
217 } else {
218 /* 352x288 */
219 reg_w1(gspca_dev, R29_LINE, 0x81);
220 /* CIF - 2 lines/packet */
221 }
222 /************************************************/
223 reg_w1(gspca_dev, R2C_POLARITY, 0x10); /* slow clock */
224 reg_w1(gspca_dev, R2D_POINT, 0x14);
225 reg_w1(gspca_dev, R2E_POINTH, 0x01);
226 reg_w1(gspca_dev, R2F_POINTB, 0x12);
227 reg_w1(gspca_dev, R30_POINTBH, 0x01);
228
229 tv_8532_setReg(gspca_dev);
230
231 /************************************************/
232 reg_w1(gspca_dev, R31_UPD, 0x01); /* update registers */
233 msleep(200);
234 reg_w1(gspca_dev, R31_UPD, 0x00); /* end update */
235
236 gspca_dev->empty_packet = 0; /* check the empty packets */
237 sd->packet = 0; /* ignore the first packets */
238
239 return 0;
240 }
241
sd_stopN(struct gspca_dev * gspca_dev)242 static void sd_stopN(struct gspca_dev *gspca_dev)
243 {
244 reg_w1(gspca_dev, R3B_Test3, 0x0b); /* Test0Sel = 11 = GPIO */
245 }
246
sd_pkt_scan(struct gspca_dev * gspca_dev,u8 * data,int len)247 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
248 u8 *data, /* isoc packet */
249 int len) /* iso packet length */
250 {
251 struct sd *sd = (struct sd *) gspca_dev;
252 int packet_type0, packet_type1;
253
254 packet_type0 = packet_type1 = INTER_PACKET;
255 if (gspca_dev->empty_packet) {
256 gspca_dev->empty_packet = 0;
257 sd->packet = gspca_dev->pixfmt.height / 2;
258 packet_type0 = FIRST_PACKET;
259 } else if (sd->packet == 0)
260 return; /* 2 more lines in 352x288 ! */
261 sd->packet--;
262 if (sd->packet == 0)
263 packet_type1 = LAST_PACKET;
264
265 /* each packet contains:
266 * - header 2 bytes
267 * - RGRG line
268 * - 4 bytes
269 * - GBGB line
270 * - 4 bytes
271 */
272 gspca_frame_add(gspca_dev, packet_type0,
273 data + 2, gspca_dev->pixfmt.width);
274 gspca_frame_add(gspca_dev, packet_type1,
275 data + gspca_dev->pixfmt.width + 5,
276 gspca_dev->pixfmt.width);
277 }
278
sd_s_ctrl(struct v4l2_ctrl * ctrl)279 static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
280 {
281 struct gspca_dev *gspca_dev =
282 container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
283
284 gspca_dev->usb_err = 0;
285
286 if (!gspca_dev->streaming)
287 return 0;
288
289 switch (ctrl->id) {
290 case V4L2_CID_EXPOSURE:
291 setexposure(gspca_dev, ctrl->val);
292 break;
293 case V4L2_CID_GAIN:
294 setgain(gspca_dev, ctrl->val);
295 break;
296 }
297 return gspca_dev->usb_err;
298 }
299
300 static const struct v4l2_ctrl_ops sd_ctrl_ops = {
301 .s_ctrl = sd_s_ctrl,
302 };
303
sd_init_controls(struct gspca_dev * gspca_dev)304 static int sd_init_controls(struct gspca_dev *gspca_dev)
305 {
306 struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
307
308 gspca_dev->vdev.ctrl_handler = hdl;
309 v4l2_ctrl_handler_init(hdl, 2);
310 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
311 V4L2_CID_EXPOSURE, 0, 0x18f, 1, 0x18f);
312 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
313 V4L2_CID_GAIN, 0, 0x7ff, 1, 0x100);
314
315 if (hdl->error) {
316 pr_err("Could not initialize controls\n");
317 return hdl->error;
318 }
319 return 0;
320 }
321
322 /* sub-driver description */
323 static const struct sd_desc sd_desc = {
324 .name = MODULE_NAME,
325 .config = sd_config,
326 .init = sd_init,
327 .init_controls = sd_init_controls,
328 .start = sd_start,
329 .stopN = sd_stopN,
330 .pkt_scan = sd_pkt_scan,
331 };
332
333 /* -- module initialisation -- */
334 static const struct usb_device_id device_table[] = {
335 {USB_DEVICE(0x046d, 0x0920)},
336 {USB_DEVICE(0x046d, 0x0921)},
337 {USB_DEVICE(0x0545, 0x808b)},
338 {USB_DEVICE(0x0545, 0x8333)},
339 {USB_DEVICE(0x0923, 0x010f)},
340 {}
341 };
342
343 MODULE_DEVICE_TABLE(usb, device_table);
344
345 /* -- device connect -- */
sd_probe(struct usb_interface * intf,const struct usb_device_id * id)346 static int sd_probe(struct usb_interface *intf,
347 const struct usb_device_id *id)
348 {
349 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
350 THIS_MODULE);
351 }
352
353 static struct usb_driver sd_driver = {
354 .name = MODULE_NAME,
355 .id_table = device_table,
356 .probe = sd_probe,
357 .disconnect = gspca_disconnect,
358 #ifdef CONFIG_PM
359 .suspend = gspca_suspend,
360 .resume = gspca_resume,
361 .reset_resume = gspca_resume,
362 #endif
363 };
364
365 module_usb_driver(sd_driver);
366
