629 lines · c
1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Copyright (C) 2008 Sensoray Company Inc.4 */5 6#include <linux/module.h>7#include <linux/usb.h>8#include <linux/i2c.h>9#include <linux/videodev2.h>10#include <linux/slab.h>11#include <media/v4l2-device.h>12#include <media/v4l2-common.h>13#include <media/v4l2-subdev.h>14#include "go7007-priv.h"15 16MODULE_DESCRIPTION("Sensoray 2250/2251 i2c v4l2 subdev driver");17MODULE_LICENSE("GPL v2");18 19/*20 * Note: this board has two i2c devices: a vpx3226f and a tlv320aic23b.21 * Due to the unusual way these are accessed on this device we do not22 * reuse the i2c drivers, but instead they are implemented in this23 * driver. It would be nice to improve on this, though.24 */25 26#define TLV320_ADDRESS 0x3427#define VPX322_ADDR_ANALOGCONTROL1 0x0228#define VPX322_ADDR_BRIGHTNESS0 0x012729#define VPX322_ADDR_BRIGHTNESS1 0x013130#define VPX322_ADDR_CONTRAST0 0x012831#define VPX322_ADDR_CONTRAST1 0x013232#define VPX322_ADDR_HUE 0x00dc33#define VPX322_ADDR_SAT 0x003034 35struct go7007_usb_board {36 unsigned int flags;37 struct go7007_board_info main_info;38};39 40struct go7007_usb {41 struct go7007_usb_board *board;42 struct mutex i2c_lock;43 struct usb_device *usbdev;44 struct urb *video_urbs[8];45 struct urb *audio_urbs[8];46 struct urb *intr_urb;47};48 49static unsigned char aud_regs[] = {50 0x1e, 0x00,51 0x00, 0x17,52 0x02, 0x17,53 0x04, 0xf9,54 0x06, 0xf9,55 0x08, 0x02,56 0x0a, 0x00,57 0x0c, 0x00,58 0x0a, 0x00,59 0x0c, 0x00,60 0x0e, 0x02,61 0x10, 0x00,62 0x12, 0x01,63 0x00, 0x00,64};65 66 67static unsigned char vid_regs[] = {68 0xF2, 0x0f,69 0xAA, 0x00,70 0xF8, 0xff,71 0x00, 0x00,72};73 74static u16 vid_regs_fp[] = {75 0x028, 0x067,76 0x120, 0x016,77 0x121, 0xcF2,78 0x122, 0x0F2,79 0x123, 0x00c,80 0x124, 0x2d0,81 0x125, 0x2e0,82 0x126, 0x004,83 0x128, 0x1E0,84 0x12A, 0x016,85 0x12B, 0x0F2,86 0x12C, 0x0F2,87 0x12D, 0x00c,88 0x12E, 0x2d0,89 0x12F, 0x2e0,90 0x130, 0x004,91 0x132, 0x1E0,92 0x140, 0x060,93 0x153, 0x00C,94 0x154, 0x200,95 0x150, 0x801,96 0x000, 0x00097};98 99/* PAL specific values */100static u16 vid_regs_fp_pal[] = {101 0x120, 0x017,102 0x121, 0xd22,103 0x122, 0x122,104 0x12A, 0x017,105 0x12B, 0x122,106 0x12C, 0x122,107 0x140, 0x060,108 0x000, 0x000,109};110 111struct s2250 {112 struct v4l2_subdev sd;113 struct v4l2_ctrl_handler hdl;114 v4l2_std_id std;115 int input;116 int brightness;117 int contrast;118 int saturation;119 int hue;120 int reg12b_val;121 int audio_input;122 struct i2c_client *audio;123};124 125static inline struct s2250 *to_state(struct v4l2_subdev *sd)126{127 return container_of(sd, struct s2250, sd);128}129 130/* from go7007-usb.c which is Copyright (C) 2005-2006 Micronas USA Inc.*/131static int go7007_usb_vendor_request(struct go7007 *go, u16 request,132 u16 value, u16 index, void *transfer_buffer, int length, int in)133{134 struct go7007_usb *usb = go->hpi_context;135 int timeout = 5000;136 137 if (in) {138 return usb_control_msg(usb->usbdev,139 usb_rcvctrlpipe(usb->usbdev, 0), request,140 USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,141 value, index, transfer_buffer, length, timeout);142 } else {143 return usb_control_msg(usb->usbdev,144 usb_sndctrlpipe(usb->usbdev, 0), request,145 USB_TYPE_VENDOR | USB_RECIP_DEVICE,146 value, index, transfer_buffer, length, timeout);147 }148}149/* end from go7007-usb.c which is Copyright (C) 2005-2006 Micronas USA Inc.*/150 151static int write_reg(struct i2c_client *client, u8 reg, u8 value)152{153 struct go7007 *go = i2c_get_adapdata(client->adapter);154 struct go7007_usb *usb;155 int rc;156 int dev_addr = client->addr << 1; /* firmware wants 8-bit address */157 u8 *buf;158 159 if (go == NULL)160 return -ENODEV;161 162 if (go->status == STATUS_SHUTDOWN)163 return -EBUSY;164 165 buf = kzalloc(16, GFP_KERNEL);166 if (buf == NULL)167 return -ENOMEM;168 169 usb = go->hpi_context;170 if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {171 dev_info(&client->dev, "i2c lock failed\n");172 kfree(buf);173 return -EINTR;174 }175 rc = go7007_usb_vendor_request(go, 0x55, dev_addr,176 (reg<<8 | value),177 buf,178 16, 1);179 180 mutex_unlock(&usb->i2c_lock);181 kfree(buf);182 return rc;183}184 185static int write_reg_fp(struct i2c_client *client, u16 addr, u16 val)186{187 struct go7007 *go = i2c_get_adapdata(client->adapter);188 struct go7007_usb *usb;189 int rc;190 u8 *buf;191 struct s2250 *dec = i2c_get_clientdata(client);192 193 if (go == NULL)194 return -ENODEV;195 196 if (go->status == STATUS_SHUTDOWN)197 return -EBUSY;198 199 buf = kzalloc(16, GFP_KERNEL);200 201 if (buf == NULL)202 return -ENOMEM;203 204 205 206 memset(buf, 0xcd, 6);207 208 usb = go->hpi_context;209 if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {210 dev_info(&client->dev, "i2c lock failed\n");211 kfree(buf);212 return -EINTR;213 }214 rc = go7007_usb_vendor_request(go, 0x57, addr, val, buf, 16, 1);215 mutex_unlock(&usb->i2c_lock);216 if (rc < 0) {217 kfree(buf);218 return rc;219 }220 221 if (buf[0] == 0) {222 unsigned int subaddr, val_read;223 224 subaddr = (buf[4] << 8) + buf[5];225 val_read = (buf[2] << 8) + buf[3];226 kfree(buf);227 if (val_read != val) {228 dev_info(&client->dev, "invalid fp write %x %x\n",229 val_read, val);230 return -EFAULT;231 }232 if (subaddr != addr) {233 dev_info(&client->dev, "invalid fp write addr %x %x\n",234 subaddr, addr);235 return -EFAULT;236 }237 } else {238 kfree(buf);239 return -EFAULT;240 }241 242 /* save last 12b value */243 if (addr == 0x12b)244 dec->reg12b_val = val;245 246 return 0;247}248 249static int read_reg_fp(struct i2c_client *client, u16 addr, u16 *val)250{251 struct go7007 *go = i2c_get_adapdata(client->adapter);252 struct go7007_usb *usb;253 int rc;254 u8 *buf;255 256 if (go == NULL)257 return -ENODEV;258 259 if (go->status == STATUS_SHUTDOWN)260 return -EBUSY;261 262 buf = kzalloc(16, GFP_KERNEL);263 264 if (buf == NULL)265 return -ENOMEM;266 267 268 269 memset(buf, 0xcd, 6);270 usb = go->hpi_context;271 if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {272 dev_info(&client->dev, "i2c lock failed\n");273 kfree(buf);274 return -EINTR;275 }276 rc = go7007_usb_vendor_request(go, 0x58, addr, 0, buf, 16, 1);277 mutex_unlock(&usb->i2c_lock);278 if (rc < 0) {279 kfree(buf);280 return rc;281 }282 283 *val = (buf[0] << 8) | buf[1];284 kfree(buf);285 286 return 0;287}288 289 290static int write_regs(struct i2c_client *client, u8 *regs)291{292 int i;293 294 for (i = 0; !((regs[i] == 0x00) && (regs[i+1] == 0x00)); i += 2) {295 if (write_reg(client, regs[i], regs[i+1]) < 0) {296 dev_info(&client->dev, "failed\n");297 return -1;298 }299 }300 return 0;301}302 303static int write_regs_fp(struct i2c_client *client, u16 *regs)304{305 int i;306 307 for (i = 0; !((regs[i] == 0x00) && (regs[i+1] == 0x00)); i += 2) {308 if (write_reg_fp(client, regs[i], regs[i+1]) < 0) {309 dev_info(&client->dev, "failed fp\n");310 return -1;311 }312 }313 return 0;314}315 316 317/* ------------------------------------------------------------------------- */318 319static int s2250_s_video_routing(struct v4l2_subdev *sd, u32 input, u32 output,320 u32 config)321{322 struct s2250 *state = to_state(sd);323 struct i2c_client *client = v4l2_get_subdevdata(sd);324 int vidsys;325 326 vidsys = (state->std == V4L2_STD_NTSC) ? 0x01 : 0x00;327 if (input == 0) {328 /* composite */329 write_reg_fp(client, 0x20, 0x020 | vidsys);330 write_reg_fp(client, 0x21, 0x662);331 write_reg_fp(client, 0x140, 0x060);332 } else if (input == 1) {333 /* S-Video */334 write_reg_fp(client, 0x20, 0x040 | vidsys);335 write_reg_fp(client, 0x21, 0x666);336 write_reg_fp(client, 0x140, 0x060);337 } else {338 return -EINVAL;339 }340 state->input = input;341 return 0;342}343 344static int s2250_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)345{346 struct s2250 *state = to_state(sd);347 struct i2c_client *client = v4l2_get_subdevdata(sd);348 u16 vidsource;349 350 vidsource = (state->input == 1) ? 0x040 : 0x020;351 if (norm & V4L2_STD_625_50) {352 write_regs_fp(client, vid_regs_fp);353 write_regs_fp(client, vid_regs_fp_pal);354 write_reg_fp(client, 0x20, vidsource);355 } else {356 write_regs_fp(client, vid_regs_fp);357 write_reg_fp(client, 0x20, vidsource | 1);358 }359 state->std = norm;360 return 0;361}362 363static int s2250_s_ctrl(struct v4l2_ctrl *ctrl)364{365 struct s2250 *state = container_of(ctrl->handler, struct s2250, hdl);366 struct i2c_client *client = v4l2_get_subdevdata(&state->sd);367 u16 oldvalue;368 369 switch (ctrl->id) {370 case V4L2_CID_BRIGHTNESS:371 read_reg_fp(client, VPX322_ADDR_BRIGHTNESS0, &oldvalue);372 write_reg_fp(client, VPX322_ADDR_BRIGHTNESS0,373 ctrl->val | (oldvalue & ~0xff));374 read_reg_fp(client, VPX322_ADDR_BRIGHTNESS1, &oldvalue);375 write_reg_fp(client, VPX322_ADDR_BRIGHTNESS1,376 ctrl->val | (oldvalue & ~0xff));377 write_reg_fp(client, 0x140, 0x60);378 break;379 case V4L2_CID_CONTRAST:380 read_reg_fp(client, VPX322_ADDR_CONTRAST0, &oldvalue);381 write_reg_fp(client, VPX322_ADDR_CONTRAST0,382 ctrl->val | (oldvalue & ~0x3f));383 read_reg_fp(client, VPX322_ADDR_CONTRAST1, &oldvalue);384 write_reg_fp(client, VPX322_ADDR_CONTRAST1,385 ctrl->val | (oldvalue & ~0x3f));386 write_reg_fp(client, 0x140, 0x60);387 break;388 case V4L2_CID_SATURATION:389 write_reg_fp(client, VPX322_ADDR_SAT, ctrl->val);390 break;391 case V4L2_CID_HUE:392 write_reg_fp(client, VPX322_ADDR_HUE, ctrl->val);393 break;394 default:395 return -EINVAL;396 }397 return 0;398}399 400static int s2250_set_fmt(struct v4l2_subdev *sd,401 struct v4l2_subdev_state *sd_state,402 struct v4l2_subdev_format *format)403{404 struct v4l2_mbus_framefmt *fmt = &format->format;405 struct s2250 *state = to_state(sd);406 struct i2c_client *client = v4l2_get_subdevdata(sd);407 408 if (format->pad)409 return -EINVAL;410 411 if (format->which == V4L2_SUBDEV_FORMAT_TRY)412 return 0;413 414 if (fmt->height < 640) {415 write_reg_fp(client, 0x12b, state->reg12b_val | 0x400);416 write_reg_fp(client, 0x140, 0x060);417 } else {418 write_reg_fp(client, 0x12b, state->reg12b_val & ~0x400);419 write_reg_fp(client, 0x140, 0x060);420 }421 return 0;422}423 424static int s2250_s_audio_routing(struct v4l2_subdev *sd, u32 input, u32 output,425 u32 config)426{427 struct s2250 *state = to_state(sd);428 429 switch (input) {430 case 0:431 write_reg(state->audio, 0x08, 0x02); /* Line In */432 break;433 case 1:434 write_reg(state->audio, 0x08, 0x04); /* Mic */435 break;436 case 2:437 write_reg(state->audio, 0x08, 0x05); /* Mic Boost */438 break;439 default:440 return -EINVAL;441 }442 state->audio_input = input;443 return 0;444}445 446 447static int s2250_log_status(struct v4l2_subdev *sd)448{449 struct s2250 *state = to_state(sd);450 451 v4l2_info(sd, "Standard: %s\n", state->std == V4L2_STD_NTSC ? "NTSC" :452 state->std == V4L2_STD_PAL ? "PAL" :453 state->std == V4L2_STD_SECAM ? "SECAM" :454 "unknown");455 v4l2_info(sd, "Input: %s\n", state->input == 0 ? "Composite" :456 state->input == 1 ? "S-video" :457 "error");458 v4l2_info(sd, "Audio input: %s\n", state->audio_input == 0 ? "Line In" :459 state->audio_input == 1 ? "Mic" :460 state->audio_input == 2 ? "Mic Boost" :461 "error");462 return v4l2_ctrl_subdev_log_status(sd);463}464 465/* --------------------------------------------------------------------------*/466 467static const struct v4l2_ctrl_ops s2250_ctrl_ops = {468 .s_ctrl = s2250_s_ctrl,469};470 471static const struct v4l2_subdev_core_ops s2250_core_ops = {472 .log_status = s2250_log_status,473};474 475static const struct v4l2_subdev_audio_ops s2250_audio_ops = {476 .s_routing = s2250_s_audio_routing,477};478 479static const struct v4l2_subdev_video_ops s2250_video_ops = {480 .s_std = s2250_s_std,481 .s_routing = s2250_s_video_routing,482};483 484static const struct v4l2_subdev_pad_ops s2250_pad_ops = {485 .set_fmt = s2250_set_fmt,486};487 488static const struct v4l2_subdev_ops s2250_ops = {489 .core = &s2250_core_ops,490 .audio = &s2250_audio_ops,491 .video = &s2250_video_ops,492 .pad = &s2250_pad_ops,493};494 495/* --------------------------------------------------------------------------*/496 497static int s2250_probe(struct i2c_client *client)498{499 struct i2c_client *audio;500 struct i2c_adapter *adapter = client->adapter;501 struct s2250 *state;502 struct v4l2_subdev *sd;503 u8 *data;504 struct go7007 *go = i2c_get_adapdata(adapter);505 struct go7007_usb *usb = go->hpi_context;506 int err = -EIO;507 508 audio = i2c_new_dummy_device(adapter, TLV320_ADDRESS >> 1);509 if (IS_ERR(audio))510 return PTR_ERR(audio);511 512 state = kzalloc(sizeof(struct s2250), GFP_KERNEL);513 if (state == NULL) {514 i2c_unregister_device(audio);515 return -ENOMEM;516 }517 518 sd = &state->sd;519 v4l2_i2c_subdev_init(sd, client, &s2250_ops);520 521 v4l2_info(sd, "initializing %s at address 0x%x on %s\n",522 "Sensoray 2250/2251", client->addr, client->adapter->name);523 524 v4l2_ctrl_handler_init(&state->hdl, 4);525 v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,526 V4L2_CID_BRIGHTNESS, -128, 127, 1, 0);527 v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,528 V4L2_CID_CONTRAST, 0, 0x3f, 1, 0x32);529 v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,530 V4L2_CID_SATURATION, 0, 4094, 1, 2070);531 v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,532 V4L2_CID_HUE, -512, 511, 1, 0);533 sd->ctrl_handler = &state->hdl;534 if (state->hdl.error) {535 err = state->hdl.error;536 goto fail;537 }538 539 state->std = V4L2_STD_NTSC;540 state->brightness = 50;541 state->contrast = 50;542 state->saturation = 50;543 state->hue = 0;544 state->audio = audio;545 546 /* initialize the audio */547 if (write_regs(audio, aud_regs) < 0) {548 dev_err(&client->dev, "error initializing audio\n");549 goto fail;550 }551 552 if (write_regs(client, vid_regs) < 0) {553 dev_err(&client->dev, "error initializing decoder\n");554 goto fail;555 }556 if (write_regs_fp(client, vid_regs_fp) < 0) {557 dev_err(&client->dev, "error initializing decoder\n");558 goto fail;559 }560 /* set default channel */561 /* composite */562 write_reg_fp(client, 0x20, 0x020 | 1);563 write_reg_fp(client, 0x21, 0x662);564 write_reg_fp(client, 0x140, 0x060);565 566 /* set default audio input */567 state->audio_input = 0;568 write_reg(client, 0x08, 0x02); /* Line In */569 570 if (mutex_lock_interruptible(&usb->i2c_lock) == 0) {571 data = kzalloc(16, GFP_KERNEL);572 if (data != NULL) {573 int rc = go7007_usb_vendor_request(go, 0x41, 0, 0,574 data, 16, 1);575 576 if (rc > 0) {577 u8 mask;578 579 data[0] = 0;580 mask = 1<<5;581 data[0] &= ~mask;582 data[1] |= mask;583 go7007_usb_vendor_request(go, 0x40, 0,584 (data[1]<<8)585 + data[1],586 data, 16, 0);587 }588 kfree(data);589 }590 mutex_unlock(&usb->i2c_lock);591 }592 593 v4l2_info(sd, "initialized successfully\n");594 return 0;595 596fail:597 i2c_unregister_device(audio);598 v4l2_ctrl_handler_free(&state->hdl);599 kfree(state);600 return err;601}602 603static void s2250_remove(struct i2c_client *client)604{605 struct s2250 *state = to_state(i2c_get_clientdata(client));606 607 i2c_unregister_device(state->audio);608 v4l2_device_unregister_subdev(&state->sd);609 v4l2_ctrl_handler_free(&state->hdl);610 kfree(state);611}612 613static const struct i2c_device_id s2250_id[] = {614 { "s2250" },615 { }616};617MODULE_DEVICE_TABLE(i2c, s2250_id);618 619static struct i2c_driver s2250_driver = {620 .driver = {621 .name = "s2250",622 },623 .probe = s2250_probe,624 .remove = s2250_remove,625 .id_table = s2250_id,626};627 628module_i2c_driver(s2250_driver);629