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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * Quickcam cameras initialization data4 *5 * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>6 */7#define MODULE_NAME "tv8532"8 9#include "gspca.h"10 11MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");12MODULE_DESCRIPTION("TV8532 USB Camera Driver");13MODULE_LICENSE("GPL");14 15/* specific webcam descriptor */16struct sd {17 struct gspca_dev gspca_dev; /* !! must be the first item */18 19 __u8 packet;20};21 22static 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 0x0037#define LATENT_CHANGE 0x8038#define EXPO_CHANGE 0x0439#define R01_TIMING_CONTROL_LOW 0x0140#define CMD_EEprom_Open 0x3041#define CMD_EEprom_Close 0x2942#define R03_TABLE_ADDR 0x0343#define R04_WTRAM_DATA_L 0x0444#define R05_WTRAM_DATA_M 0x0545#define R06_WTRAM_DATA_H 0x0646#define R07_TABLE_LEN 0x0747#define R08_RAM_WRITE_ACTION 0x0848#define R0C_AD_WIDTHL 0x0c49#define R0D_AD_WIDTHH 0x0d50#define R0E_AD_HEIGHTL 0x0e51#define R0F_AD_HEIGHTH 0x0f52#define R10_AD_COL_BEGINL 0x1053#define R11_AD_COL_BEGINH 0x1154#define MIRROR 0x04 /* [10] */55#define R14_AD_ROW_BEGINL 0x1456#define R15_AD_ROWBEGINH 0x1557#define R1C_AD_EXPOSE_TIMEL 0x1c58#define R20_GAIN_G1L 0x2059#define R21_GAIN_G1H 0x2160#define R22_GAIN_RL 0x2261#define R23_GAIN_RH 0x2362#define R24_GAIN_BL 0x2463#define R25_GAIN_BH 0x2564#define R26_GAIN_G2L 0x2665#define R27_GAIN_G2H 0x2766#define R28_QUANT 0x2867#define R29_LINE 0x2968#define R2C_POLARITY 0x2c69#define R2D_POINT 0x2d70#define R2E_POINTH 0x2e71#define R2F_POINTB 0x2f72#define R30_POINTBH 0x3073#define R31_UPD 0x3174#define R2A_HIGH_BUDGET 0x2a75#define R2B_LOW_BUDGET 0x2b76#define R34_VID 0x3477#define R35_VIDH 0x3578#define R36_PID 0x3679#define R37_PIDH 0x3780#define R39_Test1 0x39 /* GPIO */81#define R3B_Test3 0x3b /* GPIO */82#define R83_AD_IDH 0x8383#define R91_AD_SLOPEREG 0x9184#define R94_AD_BITCONTROL 0x9485 86static 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 */105static 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 */118static 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 131static 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 */148static 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 160static 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 */180static int sd_init(struct gspca_dev *gspca_dev)181{182 tv_8532WriteEEprom(gspca_dev);183 184 return 0;185}186 187static 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 194static 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 -- */203static 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 242static void sd_stopN(struct gspca_dev *gspca_dev)243{244 reg_w1(gspca_dev, R3B_Test3, 0x0b); /* Test0Sel = 11 = GPIO */245}246 247static 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 bytes267 * - RGRG line268 * - 4 bytes269 * - GBGB line270 * - 4 bytes271 */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 279static 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 300static const struct v4l2_ctrl_ops sd_ctrl_ops = {301 .s_ctrl = sd_s_ctrl,302};303 304static 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 */323static 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 -- */334static 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 343MODULE_DEVICE_TABLE(usb, device_table);344 345/* -- device connect -- */346static 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 353static 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_PM359 .suspend = gspca_suspend,360 .resume = gspca_resume,361 .reset_resume = gspca_resume,362#endif363};364 365module_usb_driver(sd_driver);366