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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Driver for the po1030 sensor4 *5 * Copyright (c) 2008 Erik Andrén6 * Copyright (c) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project.7 * Copyright (c) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br>8 *9 * Portions of code to USB interface and ALi driver software,10 * Copyright (c) 2006 Willem Duinker11 * v4l2 interface modeled after the V4L2 driver12 * for SN9C10x PC Camera Controllers13 */14 15#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt16 17#include "m5602_po1030.h"18 19static int po1030_s_ctrl(struct v4l2_ctrl *ctrl);20static void po1030_dump_registers(struct sd *sd);21 22static const unsigned char preinit_po1030[][3] = {23 {BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02},24 {BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0},25 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00},26 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},27 {BRIDGE, M5602_XB_ADC_CTRL, 0xc0},28 {BRIDGE, M5602_XB_SENSOR_CTRL, 0x00},29 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x0c},30 {BRIDGE, M5602_XB_ADC_CTRL, 0xc0},31 {BRIDGE, M5602_XB_GPIO_DIR, 0x05},32 {BRIDGE, M5602_XB_GPIO_DAT, 0x04},33 {BRIDGE, M5602_XB_GPIO_EN_H, 0x06},34 {BRIDGE, M5602_XB_GPIO_DIR_H, 0x06},35 {BRIDGE, M5602_XB_GPIO_DAT_H, 0x02},36 37 {SENSOR, PO1030_AUTOCTRL2, PO1030_SENSOR_RESET | (1 << 2)},38 39 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x04},40 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},41 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00},42 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},43 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x0c},44 {BRIDGE, M5602_XB_GPIO_DIR, 0x05},45 {BRIDGE, M5602_XB_GPIO_DAT, 0x00}46};47 48static const unsigned char init_po1030[][3] = {49 {BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02},50 {BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0},51 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00},52 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},53 {BRIDGE, M5602_XB_ADC_CTRL, 0xc0},54 {BRIDGE, M5602_XB_SENSOR_CTRL, 0x00},55 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x0c},56 57 {SENSOR, PO1030_AUTOCTRL2, PO1030_SENSOR_RESET | (1 << 2)},58 59 {BRIDGE, M5602_XB_GPIO_DIR, 0x05},60 {BRIDGE, M5602_XB_GPIO_DAT, 0x04},61 {BRIDGE, M5602_XB_GPIO_EN_H, 0x06},62 {BRIDGE, M5602_XB_GPIO_EN_L, 0x00},63 {BRIDGE, M5602_XB_GPIO_DIR_H, 0x06},64 {BRIDGE, M5602_XB_GPIO_DAT_H, 0x02},65 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x04},66 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},67 {BRIDGE, M5602_XB_GPIO_DIR, 0x05},68 {BRIDGE, M5602_XB_GPIO_DAT, 0x00},69 70 {SENSOR, PO1030_AUTOCTRL2, 0x04},71 72 {SENSOR, PO1030_OUTFORMCTRL2, PO1030_RAW_RGB_BAYER},73 {SENSOR, PO1030_AUTOCTRL1, PO1030_WEIGHT_WIN_2X},74 75 {SENSOR, PO1030_CONTROL2, 0x03},76 {SENSOR, 0x21, 0x90},77 {SENSOR, PO1030_YTARGET, 0x60},78 {SENSOR, 0x59, 0x13},79 {SENSOR, PO1030_OUTFORMCTRL1, PO1030_HREF_ENABLE},80 {SENSOR, PO1030_EDGE_ENH_OFF, 0x00},81 {SENSOR, PO1030_EGA, 0x80},82 {SENSOR, 0x78, 0x14},83 {SENSOR, 0x6f, 0x01},84 {SENSOR, PO1030_GLOBALGAINMAX, 0x14},85 {SENSOR, PO1030_Cb_U_GAIN, 0x38},86 {SENSOR, PO1030_Cr_V_GAIN, 0x38},87 {SENSOR, PO1030_CONTROL1, PO1030_SHUTTER_MODE |88 PO1030_AUTO_SUBSAMPLING |89 PO1030_FRAME_EQUAL},90 {SENSOR, PO1030_GC0, 0x10},91 {SENSOR, PO1030_GC1, 0x20},92 {SENSOR, PO1030_GC2, 0x40},93 {SENSOR, PO1030_GC3, 0x60},94 {SENSOR, PO1030_GC4, 0x80},95 {SENSOR, PO1030_GC5, 0xa0},96 {SENSOR, PO1030_GC6, 0xc0},97 {SENSOR, PO1030_GC7, 0xff},98 99 /* Set the width to 751 */100 {SENSOR, PO1030_FRAMEWIDTH_H, 0x02},101 {SENSOR, PO1030_FRAMEWIDTH_L, 0xef},102 103 /* Set the height to 540 */104 {SENSOR, PO1030_FRAMEHEIGHT_H, 0x02},105 {SENSOR, PO1030_FRAMEHEIGHT_L, 0x1c},106 107 /* Set the x window to 1 */108 {SENSOR, PO1030_WINDOWX_H, 0x00},109 {SENSOR, PO1030_WINDOWX_L, 0x01},110 111 /* Set the y window to 1 */112 {SENSOR, PO1030_WINDOWY_H, 0x00},113 {SENSOR, PO1030_WINDOWY_L, 0x01},114 115 /* with a very low lighted environment increase the exposure but116 * decrease the FPS (Frame Per Second) */117 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00},118 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},119 120 {BRIDGE, M5602_XB_GPIO_DIR, 0x05},121 {BRIDGE, M5602_XB_GPIO_DAT, 0x00},122 {BRIDGE, M5602_XB_GPIO_EN_H, 0x06},123 {BRIDGE, M5602_XB_GPIO_EN_L, 0x00},124};125 126static struct v4l2_pix_format po1030_modes[] = {127 {128 640,129 480,130 V4L2_PIX_FMT_SBGGR8,131 V4L2_FIELD_NONE,132 .sizeimage = 640 * 480,133 .bytesperline = 640,134 .colorspace = V4L2_COLORSPACE_SRGB,135 .priv = 2136 }137};138 139static const struct v4l2_ctrl_ops po1030_ctrl_ops = {140 .s_ctrl = po1030_s_ctrl,141};142 143static const struct v4l2_ctrl_config po1030_greenbal_cfg = {144 .ops = &po1030_ctrl_ops,145 .id = M5602_V4L2_CID_GREEN_BALANCE,146 .name = "Green Balance",147 .type = V4L2_CTRL_TYPE_INTEGER,148 .min = 0,149 .max = 255,150 .step = 1,151 .def = PO1030_GREEN_GAIN_DEFAULT,152 .flags = V4L2_CTRL_FLAG_SLIDER,153};154 155int po1030_probe(struct sd *sd)156{157 u8 dev_id_h = 0, i;158 int err;159 struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;160 161 if (force_sensor) {162 if (force_sensor == PO1030_SENSOR) {163 pr_info("Forcing a %s sensor\n", po1030.name);164 goto sensor_found;165 }166 /* If we want to force another sensor, don't try to probe this167 * one */168 return -ENODEV;169 }170 171 gspca_dbg(gspca_dev, D_PROBE, "Probing for a po1030 sensor\n");172 173 /* Run the pre-init to actually probe the unit */174 for (i = 0; i < ARRAY_SIZE(preinit_po1030); i++) {175 u8 data = preinit_po1030[i][2];176 if (preinit_po1030[i][0] == SENSOR)177 err = m5602_write_sensor(sd, preinit_po1030[i][1],178 &data, 1);179 else180 err = m5602_write_bridge(sd, preinit_po1030[i][1],181 data);182 if (err < 0)183 return err;184 }185 186 if (m5602_read_sensor(sd, PO1030_DEVID_H, &dev_id_h, 1))187 return -ENODEV;188 189 if (dev_id_h == 0x30) {190 pr_info("Detected a po1030 sensor\n");191 goto sensor_found;192 }193 return -ENODEV;194 195sensor_found:196 sd->gspca_dev.cam.cam_mode = po1030_modes;197 sd->gspca_dev.cam.nmodes = ARRAY_SIZE(po1030_modes);198 199 return 0;200}201 202int po1030_init(struct sd *sd)203{204 int i, err = 0;205 206 /* Init the sensor */207 for (i = 0; i < ARRAY_SIZE(init_po1030) && !err; i++) {208 u8 data[2] = {0x00, 0x00};209 210 switch (init_po1030[i][0]) {211 case BRIDGE:212 err = m5602_write_bridge(sd,213 init_po1030[i][1],214 init_po1030[i][2]);215 break;216 217 case SENSOR:218 data[0] = init_po1030[i][2];219 err = m5602_write_sensor(sd,220 init_po1030[i][1], data, 1);221 break;222 223 default:224 pr_info("Invalid stream command, exiting init\n");225 return -EINVAL;226 }227 }228 if (err < 0)229 return err;230 231 if (dump_sensor)232 po1030_dump_registers(sd);233 234 return 0;235}236 237int po1030_init_controls(struct sd *sd)238{239 struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler;240 241 sd->gspca_dev.vdev.ctrl_handler = hdl;242 v4l2_ctrl_handler_init(hdl, 9);243 244 sd->auto_white_bal = v4l2_ctrl_new_std(hdl, &po1030_ctrl_ops,245 V4L2_CID_AUTO_WHITE_BALANCE,246 0, 1, 1, 0);247 sd->green_bal = v4l2_ctrl_new_custom(hdl, &po1030_greenbal_cfg, NULL);248 sd->red_bal = v4l2_ctrl_new_std(hdl, &po1030_ctrl_ops,249 V4L2_CID_RED_BALANCE, 0, 255, 1,250 PO1030_RED_GAIN_DEFAULT);251 sd->blue_bal = v4l2_ctrl_new_std(hdl, &po1030_ctrl_ops,252 V4L2_CID_BLUE_BALANCE, 0, 255, 1,253 PO1030_BLUE_GAIN_DEFAULT);254 255 sd->autoexpo = v4l2_ctrl_new_std_menu(hdl, &po1030_ctrl_ops,256 V4L2_CID_EXPOSURE_AUTO, 1, 0, V4L2_EXPOSURE_MANUAL);257 sd->expo = v4l2_ctrl_new_std(hdl, &po1030_ctrl_ops, V4L2_CID_EXPOSURE,258 0, 0x2ff, 1, PO1030_EXPOSURE_DEFAULT);259 260 sd->gain = v4l2_ctrl_new_std(hdl, &po1030_ctrl_ops, V4L2_CID_GAIN, 0,261 0x4f, 1, PO1030_GLOBAL_GAIN_DEFAULT);262 263 sd->hflip = v4l2_ctrl_new_std(hdl, &po1030_ctrl_ops, V4L2_CID_HFLIP,264 0, 1, 1, 0);265 sd->vflip = v4l2_ctrl_new_std(hdl, &po1030_ctrl_ops, V4L2_CID_VFLIP,266 0, 1, 1, 0);267 268 if (hdl->error) {269 pr_err("Could not initialize controls\n");270 return hdl->error;271 }272 273 v4l2_ctrl_auto_cluster(4, &sd->auto_white_bal, 0, false);274 v4l2_ctrl_auto_cluster(2, &sd->autoexpo, 0, false);275 v4l2_ctrl_cluster(2, &sd->hflip);276 277 return 0;278}279 280int po1030_start(struct sd *sd)281{282 struct cam *cam = &sd->gspca_dev.cam;283 int i, err = 0;284 int width = cam->cam_mode[sd->gspca_dev.curr_mode].width;285 int height = cam->cam_mode[sd->gspca_dev.curr_mode].height;286 int ver_offs = cam->cam_mode[sd->gspca_dev.curr_mode].priv;287 u8 data;288 289 switch (width) {290 case 320:291 data = PO1030_SUBSAMPLING;292 err = m5602_write_sensor(sd, PO1030_CONTROL3, &data, 1);293 if (err < 0)294 return err;295 296 data = ((width + 3) >> 8) & 0xff;297 err = m5602_write_sensor(sd, PO1030_WINDOWWIDTH_H, &data, 1);298 if (err < 0)299 return err;300 301 data = (width + 3) & 0xff;302 err = m5602_write_sensor(sd, PO1030_WINDOWWIDTH_L, &data, 1);303 if (err < 0)304 return err;305 306 data = ((height + 1) >> 8) & 0xff;307 err = m5602_write_sensor(sd, PO1030_WINDOWHEIGHT_H, &data, 1);308 if (err < 0)309 return err;310 311 data = (height + 1) & 0xff;312 err = m5602_write_sensor(sd, PO1030_WINDOWHEIGHT_L, &data, 1);313 314 height += 6;315 width -= 1;316 break;317 318 case 640:319 data = 0;320 err = m5602_write_sensor(sd, PO1030_CONTROL3, &data, 1);321 if (err < 0)322 return err;323 324 data = ((width + 7) >> 8) & 0xff;325 err = m5602_write_sensor(sd, PO1030_WINDOWWIDTH_H, &data, 1);326 if (err < 0)327 return err;328 329 data = (width + 7) & 0xff;330 err = m5602_write_sensor(sd, PO1030_WINDOWWIDTH_L, &data, 1);331 if (err < 0)332 return err;333 334 data = ((height + 3) >> 8) & 0xff;335 err = m5602_write_sensor(sd, PO1030_WINDOWHEIGHT_H, &data, 1);336 if (err < 0)337 return err;338 339 data = (height + 3) & 0xff;340 err = m5602_write_sensor(sd, PO1030_WINDOWHEIGHT_L, &data, 1);341 342 height += 12;343 width -= 2;344 break;345 }346 err = m5602_write_bridge(sd, M5602_XB_SENSOR_TYPE, 0x0c);347 if (err < 0)348 return err;349 350 err = m5602_write_bridge(sd, M5602_XB_LINE_OF_FRAME_H, 0x81);351 if (err < 0)352 return err;353 354 err = m5602_write_bridge(sd, M5602_XB_PIX_OF_LINE_H, 0x82);355 if (err < 0)356 return err;357 358 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0x01);359 if (err < 0)360 return err;361 362 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA,363 ((ver_offs >> 8) & 0xff));364 if (err < 0)365 return err;366 367 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (ver_offs & 0xff));368 if (err < 0)369 return err;370 371 for (i = 0; i < 2 && !err; i++)372 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, 0);373 if (err < 0)374 return err;375 376 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height >> 8) & 0xff);377 if (err < 0)378 return err;379 380 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height & 0xff));381 if (err < 0)382 return err;383 384 for (i = 0; i < 2 && !err; i++)385 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, 0);386 387 for (i = 0; i < 2 && !err; i++)388 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0);389 390 for (i = 0; i < 2 && !err; i++)391 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, 0);392 if (err < 0)393 return err;394 395 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, (width >> 8) & 0xff);396 if (err < 0)397 return err;398 399 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, (width & 0xff));400 if (err < 0)401 return err;402 403 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0);404 return err;405}406 407static int po1030_set_exposure(struct gspca_dev *gspca_dev, __s32 val)408{409 struct sd *sd = (struct sd *) gspca_dev;410 u8 i2c_data;411 int err;412 413 gspca_dbg(gspca_dev, D_CONF, "Set exposure to %d\n", val & 0xffff);414 415 i2c_data = ((val & 0xff00) >> 8);416 gspca_dbg(gspca_dev, D_CONF, "Set exposure to high byte to 0x%x\n",417 i2c_data);418 419 err = m5602_write_sensor(sd, PO1030_INTEGLINES_H,420 &i2c_data, 1);421 if (err < 0)422 return err;423 424 i2c_data = (val & 0xff);425 gspca_dbg(gspca_dev, D_CONF, "Set exposure to low byte to 0x%x\n",426 i2c_data);427 err = m5602_write_sensor(sd, PO1030_INTEGLINES_M,428 &i2c_data, 1);429 430 return err;431}432 433static int po1030_set_gain(struct gspca_dev *gspca_dev, __s32 val)434{435 struct sd *sd = (struct sd *) gspca_dev;436 u8 i2c_data;437 int err;438 439 i2c_data = val & 0xff;440 gspca_dbg(gspca_dev, D_CONF, "Set global gain to %d\n", i2c_data);441 err = m5602_write_sensor(sd, PO1030_GLOBALGAIN,442 &i2c_data, 1);443 return err;444}445 446static int po1030_set_hvflip(struct gspca_dev *gspca_dev)447{448 struct sd *sd = (struct sd *) gspca_dev;449 u8 i2c_data;450 int err;451 452 gspca_dbg(gspca_dev, D_CONF, "Set hvflip %d %d\n",453 sd->hflip->val, sd->vflip->val);454 err = m5602_read_sensor(sd, PO1030_CONTROL2, &i2c_data, 1);455 if (err < 0)456 return err;457 458 i2c_data = (0x3f & i2c_data) | (sd->hflip->val << 7) |459 (sd->vflip->val << 6);460 461 err = m5602_write_sensor(sd, PO1030_CONTROL2,462 &i2c_data, 1);463 464 return err;465}466 467static int po1030_set_red_balance(struct gspca_dev *gspca_dev, __s32 val)468{469 struct sd *sd = (struct sd *) gspca_dev;470 u8 i2c_data;471 int err;472 473 i2c_data = val & 0xff;474 gspca_dbg(gspca_dev, D_CONF, "Set red gain to %d\n", i2c_data);475 err = m5602_write_sensor(sd, PO1030_RED_GAIN,476 &i2c_data, 1);477 return err;478}479 480static int po1030_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)481{482 struct sd *sd = (struct sd *) gspca_dev;483 u8 i2c_data;484 int err;485 486 i2c_data = val & 0xff;487 gspca_dbg(gspca_dev, D_CONF, "Set blue gain to %d\n", i2c_data);488 err = m5602_write_sensor(sd, PO1030_BLUE_GAIN,489 &i2c_data, 1);490 491 return err;492}493 494static int po1030_set_green_balance(struct gspca_dev *gspca_dev, __s32 val)495{496 struct sd *sd = (struct sd *) gspca_dev;497 u8 i2c_data;498 int err;499 500 i2c_data = val & 0xff;501 gspca_dbg(gspca_dev, D_CONF, "Set green gain to %d\n", i2c_data);502 503 err = m5602_write_sensor(sd, PO1030_GREEN_1_GAIN,504 &i2c_data, 1);505 if (err < 0)506 return err;507 508 return m5602_write_sensor(sd, PO1030_GREEN_2_GAIN,509 &i2c_data, 1);510}511 512static int po1030_set_auto_white_balance(struct gspca_dev *gspca_dev,513 __s32 val)514{515 struct sd *sd = (struct sd *) gspca_dev;516 u8 i2c_data;517 int err;518 519 err = m5602_read_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1);520 if (err < 0)521 return err;522 523 gspca_dbg(gspca_dev, D_CONF, "Set auto white balance to %d\n", val);524 i2c_data = (i2c_data & 0xfe) | (val & 0x01);525 err = m5602_write_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1);526 return err;527}528 529static int po1030_set_auto_exposure(struct gspca_dev *gspca_dev,530 __s32 val)531{532 struct sd *sd = (struct sd *) gspca_dev;533 u8 i2c_data;534 int err;535 536 err = m5602_read_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1);537 if (err < 0)538 return err;539 540 gspca_dbg(gspca_dev, D_CONF, "Set auto exposure to %d\n", val);541 val = (val == V4L2_EXPOSURE_AUTO);542 i2c_data = (i2c_data & 0xfd) | ((val & 0x01) << 1);543 return m5602_write_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1);544}545 546void po1030_disconnect(struct sd *sd)547{548 sd->sensor = NULL;549}550 551static int po1030_s_ctrl(struct v4l2_ctrl *ctrl)552{553 struct gspca_dev *gspca_dev =554 container_of(ctrl->handler, struct gspca_dev, ctrl_handler);555 struct sd *sd = (struct sd *) gspca_dev;556 int err;557 558 if (!gspca_dev->streaming)559 return 0;560 561 switch (ctrl->id) {562 case V4L2_CID_AUTO_WHITE_BALANCE:563 err = po1030_set_auto_white_balance(gspca_dev, ctrl->val);564 if (err || ctrl->val)565 return err;566 err = po1030_set_green_balance(gspca_dev, sd->green_bal->val);567 if (err)568 return err;569 err = po1030_set_red_balance(gspca_dev, sd->red_bal->val);570 if (err)571 return err;572 err = po1030_set_blue_balance(gspca_dev, sd->blue_bal->val);573 break;574 case V4L2_CID_EXPOSURE_AUTO:575 err = po1030_set_auto_exposure(gspca_dev, ctrl->val);576 if (err || ctrl->val == V4L2_EXPOSURE_AUTO)577 return err;578 err = po1030_set_exposure(gspca_dev, sd->expo->val);579 break;580 case V4L2_CID_GAIN:581 err = po1030_set_gain(gspca_dev, ctrl->val);582 break;583 case V4L2_CID_HFLIP:584 err = po1030_set_hvflip(gspca_dev);585 break;586 default:587 return -EINVAL;588 }589 590 return err;591}592 593static void po1030_dump_registers(struct sd *sd)594{595 int address;596 u8 value = 0;597 598 pr_info("Dumping the po1030 sensor core registers\n");599 for (address = 0; address < 0x7f; address++) {600 m5602_read_sensor(sd, address, &value, 1);601 pr_info("register 0x%x contains 0x%x\n", address, value);602 }603 604 pr_info("po1030 register state dump complete\n");605 606 pr_info("Probing for which registers that are read/write\n");607 for (address = 0; address < 0xff; address++) {608 u8 old_value, ctrl_value;609 u8 test_value[2] = {0xff, 0xff};610 611 m5602_read_sensor(sd, address, &old_value, 1);612 m5602_write_sensor(sd, address, test_value, 1);613 m5602_read_sensor(sd, address, &ctrl_value, 1);614 615 if (ctrl_value == test_value[0])616 pr_info("register 0x%x is writeable\n", address);617 else618 pr_info("register 0x%x is read only\n", address);619 620 /* Restore original value */621 m5602_write_sensor(sd, address, &old_value, 1);622 }623}624