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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 | // SPDX-License-Identifier: GPL-2.0-or-later /* * saa7110 - Philips SAA7110(A) video decoder driver * * Copyright (C) 1998 Pauline Middelink <middelin@polyware.nl> * * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net> * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx> * - some corrections for Pinnacle Systems Inc. DC10plus card. * * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net> * - moved over to linux>=2.4.x i2c protocol (1/1/2003) */ #include <linux/module.h> #include <linux/init.h> #include <linux/types.h> #include <linux/delay.h> #include <linux/slab.h> #include <linux/wait.h> #include <linux/uaccess.h> #include <linux/i2c.h> #include <linux/videodev2.h> #include <media/v4l2-device.h> #include <media/v4l2-ctrls.h> MODULE_DESCRIPTION("Philips SAA7110 video decoder driver"); MODULE_AUTHOR("Pauline Middelink"); MODULE_LICENSE("GPL"); static int debug; module_param(debug, int, 0); MODULE_PARM_DESC(debug, "Debug level (0-1)"); #define SAA7110_MAX_INPUT 9 /* 6 CVBS, 3 SVHS */ #define SAA7110_MAX_OUTPUT 1 /* 1 YUV */ #define SAA7110_NR_REG 0x35 struct saa7110 { struct v4l2_subdev sd; struct v4l2_ctrl_handler hdl; u8 reg[SAA7110_NR_REG]; v4l2_std_id norm; int input; int enable; wait_queue_head_t wq; }; static inline struct saa7110 *to_saa7110(struct v4l2_subdev *sd) { return container_of(sd, struct saa7110, sd); } static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) { return &container_of(ctrl->handler, struct saa7110, hdl)->sd; } /* ----------------------------------------------------------------------- */ /* I2C support functions */ /* ----------------------------------------------------------------------- */ static int saa7110_write(struct v4l2_subdev *sd, u8 reg, u8 value) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct saa7110 *decoder = to_saa7110(sd); decoder->reg[reg] = value; return i2c_smbus_write_byte_data(client, reg, value); } static int saa7110_write_block(struct v4l2_subdev *sd, const u8 *data, unsigned int len) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct saa7110 *decoder = to_saa7110(sd); int ret = -1; u8 reg = *data; /* first register to write to */ /* Sanity check */ if (reg + (len - 1) > SAA7110_NR_REG) return ret; /* the saa7110 has an autoincrement function, use it if * the adapter understands raw I2C */ if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { ret = i2c_master_send(client, data, len); /* Cache the written data */ memcpy(decoder->reg + reg, data + 1, len - 1); } else { for (++data, --len; len; len--) { ret = saa7110_write(sd, reg++, *data++); if (ret < 0) break; } } return ret; } static inline int saa7110_read(struct v4l2_subdev *sd) { struct i2c_client *client = v4l2_get_subdevdata(sd); return i2c_smbus_read_byte(client); } /* ----------------------------------------------------------------------- */ /* SAA7110 functions */ /* ----------------------------------------------------------------------- */ #define FRESP_06H_COMPST 0x03 /*0x13*/ #define FRESP_06H_SVIDEO 0x83 /*0xC0*/ static int saa7110_selmux(struct v4l2_subdev *sd, int chan) { static const unsigned char modes[9][8] = { /* mode 0 */ {FRESP_06H_COMPST, 0xD9, 0x17, 0x40, 0x03, 0x44, 0x75, 0x16}, /* mode 1 */ {FRESP_06H_COMPST, 0xD8, 0x17, 0x40, 0x03, 0x44, 0x75, 0x16}, /* mode 2 */ {FRESP_06H_COMPST, 0xBA, 0x07, 0x91, 0x03, 0x60, 0xB5, 0x05}, /* mode 3 */ {FRESP_06H_COMPST, 0xB8, 0x07, 0x91, 0x03, 0x60, 0xB5, 0x05}, /* mode 4 */ {FRESP_06H_COMPST, 0x7C, 0x07, 0xD2, 0x83, 0x60, 0xB5, 0x03}, /* mode 5 */ {FRESP_06H_COMPST, 0x78, 0x07, 0xD2, 0x83, 0x60, 0xB5, 0x03}, /* mode 6 */ {FRESP_06H_SVIDEO, 0x59, 0x17, 0x42, 0xA3, 0x44, 0x75, 0x12}, /* mode 7 */ {FRESP_06H_SVIDEO, 0x9A, 0x17, 0xB1, 0x13, 0x60, 0xB5, 0x14}, /* mode 8 */ {FRESP_06H_SVIDEO, 0x3C, 0x27, 0xC1, 0x23, 0x44, 0x75, 0x21} }; struct saa7110 *decoder = to_saa7110(sd); const unsigned char *ptr = modes[chan]; saa7110_write(sd, 0x06, ptr[0]); /* Luminance control */ saa7110_write(sd, 0x20, ptr[1]); /* Analog Control #1 */ saa7110_write(sd, 0x21, ptr[2]); /* Analog Control #2 */ saa7110_write(sd, 0x22, ptr[3]); /* Mixer Control #1 */ saa7110_write(sd, 0x2C, ptr[4]); /* Mixer Control #2 */ saa7110_write(sd, 0x30, ptr[5]); /* ADCs gain control */ saa7110_write(sd, 0x31, ptr[6]); /* Mixer Control #3 */ saa7110_write(sd, 0x21, ptr[7]); /* Analog Control #2 */ decoder->input = chan; return 0; } static const unsigned char initseq[1 + SAA7110_NR_REG] = { 0, 0x4C, 0x3C, 0x0D, 0xEF, 0xBD, 0xF2, 0x03, 0x00, /* 0x08 */ 0xF8, 0xF8, 0x60, 0x60, 0x00, 0x86, 0x18, 0x90, /* 0x10 */ 0x00, 0x59, 0x40, 0x46, 0x42, 0x1A, 0xFF, 0xDA, /* 0x18 */ 0xF2, 0x8B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20 */ 0xD9, 0x16, 0x40, 0x41, 0x80, 0x41, 0x80, 0x4F, /* 0x28 */ 0xFE, 0x01, 0xCF, 0x0F, 0x03, 0x01, 0x03, 0x0C, /* 0x30 */ 0x44, 0x71, 0x02, 0x8C, 0x02 }; static v4l2_std_id determine_norm(struct v4l2_subdev *sd) { DEFINE_WAIT(wait); struct saa7110 *decoder = to_saa7110(sd); int status; /* mode changed, start automatic detection */ saa7110_write_block(sd, initseq, sizeof(initseq)); saa7110_selmux(sd, decoder->input); prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE); schedule_timeout(msecs_to_jiffies(250)); finish_wait(&decoder->wq, &wait); status = saa7110_read(sd); if (status & 0x40) { v4l2_dbg(1, debug, sd, "status=0x%02x (no signal)\n", status); return V4L2_STD_UNKNOWN; } if ((status & 3) == 0) { saa7110_write(sd, 0x06, 0x83); if (status & 0x20) { v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC/no color)\n", status); /*saa7110_write(sd,0x2E,0x81);*/ return V4L2_STD_NTSC; } v4l2_dbg(1, debug, sd, "status=0x%02x (PAL/no color)\n", status); /*saa7110_write(sd,0x2E,0x9A);*/ return V4L2_STD_PAL; } /*saa7110_write(sd,0x06,0x03);*/ if (status & 0x20) { /* 60Hz */ v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC)\n", status); saa7110_write(sd, 0x0D, 0x86); saa7110_write(sd, 0x0F, 0x50); saa7110_write(sd, 0x11, 0x2C); /*saa7110_write(sd,0x2E,0x81);*/ return V4L2_STD_NTSC; } /* 50Hz -> PAL/SECAM */ saa7110_write(sd, 0x0D, 0x86); saa7110_write(sd, 0x0F, 0x10); saa7110_write(sd, 0x11, 0x59); /*saa7110_write(sd,0x2E,0x9A);*/ prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE); schedule_timeout(msecs_to_jiffies(250)); finish_wait(&decoder->wq, &wait); status = saa7110_read(sd); if ((status & 0x03) == 0x01) { v4l2_dbg(1, debug, sd, "status=0x%02x (SECAM)\n", status); saa7110_write(sd, 0x0D, 0x87); return V4L2_STD_SECAM; } v4l2_dbg(1, debug, sd, "status=0x%02x (PAL)\n", status); return V4L2_STD_PAL; } static int saa7110_g_input_status(struct v4l2_subdev *sd, u32 *pstatus) { struct saa7110 *decoder = to_saa7110(sd); int res = V4L2_IN_ST_NO_SIGNAL; int status = saa7110_read(sd); v4l2_dbg(1, debug, sd, "status=0x%02x norm=%llx\n", status, (unsigned long long)decoder->norm); if (!(status & 0x40)) res = 0; if (!(status & 0x03)) res |= V4L2_IN_ST_NO_COLOR; *pstatus = res; return 0; } static int saa7110_querystd(struct v4l2_subdev *sd, v4l2_std_id *std) { *std &= determine_norm(sd); return 0; } static int saa7110_s_std(struct v4l2_subdev *sd, v4l2_std_id std) { struct saa7110 *decoder = to_saa7110(sd); if (decoder->norm != std) { decoder->norm = std; /*saa7110_write(sd, 0x06, 0x03);*/ if (std & V4L2_STD_NTSC) { saa7110_write(sd, 0x0D, 0x86); saa7110_write(sd, 0x0F, 0x50); saa7110_write(sd, 0x11, 0x2C); /*saa7110_write(sd, 0x2E, 0x81);*/ v4l2_dbg(1, debug, sd, "switched to NTSC\n"); } else if (std & V4L2_STD_PAL) { saa7110_write(sd, 0x0D, 0x86); saa7110_write(sd, 0x0F, 0x10); saa7110_write(sd, 0x11, 0x59); /*saa7110_write(sd, 0x2E, 0x9A);*/ v4l2_dbg(1, debug, sd, "switched to PAL\n"); } else if (std & V4L2_STD_SECAM) { saa7110_write(sd, 0x0D, 0x87); saa7110_write(sd, 0x0F, 0x10); saa7110_write(sd, 0x11, 0x59); /*saa7110_write(sd, 0x2E, 0x9A);*/ v4l2_dbg(1, debug, sd, "switched to SECAM\n"); } else { return -EINVAL; } } return 0; } static int saa7110_s_routing(struct v4l2_subdev *sd, u32 input, u32 output, u32 config) { struct saa7110 *decoder = to_saa7110(sd); if (input >= SAA7110_MAX_INPUT) { v4l2_dbg(1, debug, sd, "input=%d not available\n", input); return -EINVAL; } if (decoder->input != input) { saa7110_selmux(sd, input); v4l2_dbg(1, debug, sd, "switched to input=%d\n", input); } return 0; } static int saa7110_s_stream(struct v4l2_subdev *sd, int enable) { struct saa7110 *decoder = to_saa7110(sd); if (decoder->enable != enable) { decoder->enable = enable; saa7110_write(sd, 0x0E, enable ? 0x18 : 0x80); v4l2_dbg(1, debug, sd, "YUV %s\n", enable ? "on" : "off"); } return 0; } static int saa7110_s_ctrl(struct v4l2_ctrl *ctrl) { struct v4l2_subdev *sd = to_sd(ctrl); switch (ctrl->id) { case V4L2_CID_BRIGHTNESS: saa7110_write(sd, 0x19, ctrl->val); break; case V4L2_CID_CONTRAST: saa7110_write(sd, 0x13, ctrl->val); break; case V4L2_CID_SATURATION: saa7110_write(sd, 0x12, ctrl->val); break; case V4L2_CID_HUE: saa7110_write(sd, 0x07, ctrl->val); break; default: return -EINVAL; } return 0; } /* ----------------------------------------------------------------------- */ static const struct v4l2_ctrl_ops saa7110_ctrl_ops = { .s_ctrl = saa7110_s_ctrl, }; static const struct v4l2_subdev_video_ops saa7110_video_ops = { .s_std = saa7110_s_std, .s_routing = saa7110_s_routing, .s_stream = saa7110_s_stream, .querystd = saa7110_querystd, .g_input_status = saa7110_g_input_status, }; static const struct v4l2_subdev_ops saa7110_ops = { .video = &saa7110_video_ops, }; /* ----------------------------------------------------------------------- */ static int saa7110_probe(struct i2c_client *client) { struct saa7110 *decoder; struct v4l2_subdev *sd; int rv; /* Check if the adapter supports the needed features */ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA)) return -ENODEV; v4l_info(client, "chip found @ 0x%x (%s)\n", client->addr << 1, client->adapter->name); decoder = devm_kzalloc(&client->dev, sizeof(*decoder), GFP_KERNEL); if (!decoder) return -ENOMEM; sd = &decoder->sd; v4l2_i2c_subdev_init(sd, client, &saa7110_ops); decoder->norm = V4L2_STD_PAL; decoder->input = 0; decoder->enable = 1; v4l2_ctrl_handler_init(&decoder->hdl, 2); v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops, V4L2_CID_BRIGHTNESS, 0, 255, 1, 128); v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops, V4L2_CID_CONTRAST, 0, 127, 1, 64); v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops, V4L2_CID_SATURATION, 0, 127, 1, 64); v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops, V4L2_CID_HUE, -128, 127, 1, 0); sd->ctrl_handler = &decoder->hdl; if (decoder->hdl.error) { int err = decoder->hdl.error; v4l2_ctrl_handler_free(&decoder->hdl); return err; } v4l2_ctrl_handler_setup(&decoder->hdl); init_waitqueue_head(&decoder->wq); rv = saa7110_write_block(sd, initseq, sizeof(initseq)); if (rv < 0) { v4l2_dbg(1, debug, sd, "init status %d\n", rv); } else { int ver, status; saa7110_write(sd, 0x21, 0x10); saa7110_write(sd, 0x0e, 0x18); saa7110_write(sd, 0x0D, 0x04); ver = saa7110_read(sd); saa7110_write(sd, 0x0D, 0x06); /*mdelay(150);*/ status = saa7110_read(sd); v4l2_dbg(1, debug, sd, "version %x, status=0x%02x\n", ver, status); saa7110_write(sd, 0x0D, 0x86); saa7110_write(sd, 0x0F, 0x10); saa7110_write(sd, 0x11, 0x59); /*saa7110_write(sd, 0x2E, 0x9A);*/ } /*saa7110_selmux(sd,0);*/ /*determine_norm(sd);*/ /* setup and implicit mode 0 select has been performed */ return 0; } static void saa7110_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); struct saa7110 *decoder = to_saa7110(sd); v4l2_device_unregister_subdev(sd); v4l2_ctrl_handler_free(&decoder->hdl); } /* ----------------------------------------------------------------------- */ static const struct i2c_device_id saa7110_id[] = { { "saa7110", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, saa7110_id); static struct i2c_driver saa7110_driver = { .driver = { .name = "saa7110", }, .probe_new = saa7110_probe, .remove = saa7110_remove, .id_table = saa7110_id, }; module_i2c_driver(saa7110_driver); |