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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 | /* saa7185 - Philips SAA7185B video encoder driver version 0.0.3 Copyright (C) 1998 Dave Perks <dperks@ibm.net> This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/module.h> #include <linux/delay.h> #include <linux/errno.h> #include <linux/fs.h> #include <linux/kernel.h> #include <linux/major.h> #include <linux/malloc.h> #include <linux/mm.h> #include <linux/pci.h> #include <linux/signal.h> #include <asm/io.h> #include <asm/pgtable.h> #include <asm/page.h> #include <linux/sched.h> #include <asm/segment.h> #include <linux/types.h> #include <linux/wrapper.h> #include <linux/videodev.h> #include <linux/version.h> #include <asm/uaccess.h> #include <linux/i2c.h> #include <linux/video_encoder.h> #define DEBUG(x) x /* Debug driver */ /* ----------------------------------------------------------------------- */ struct saa7185 { struct i2c_bus *bus; int addr; unsigned char reg[128]; int norm; int enable; int bright; int contrast; int hue; int sat; }; #define I2C_SAA7185 0x88 #define I2C_DELAY 10 /* ----------------------------------------------------------------------- */ static int saa7185_write(struct saa7185 *dev, unsigned char subaddr, unsigned char data) { int ack; unsigned long flags; LOCK_I2C_BUS(dev->bus); i2c_start(dev->bus); i2c_sendbyte(dev->bus, dev->addr, I2C_DELAY); i2c_sendbyte(dev->bus, subaddr, I2C_DELAY); ack = i2c_sendbyte(dev->bus, data, I2C_DELAY); dev->reg[subaddr] = data; i2c_stop(dev->bus); UNLOCK_I2C_BUS(dev->bus); return ack; } static int saa7185_write_block(struct saa7185 *dev, unsigned const char *data, unsigned int len) { int ack=0; unsigned subaddr; unsigned long flags; while (len > 1) { LOCK_I2C_BUS(dev->bus); i2c_start(dev->bus); i2c_sendbyte(dev->bus, dev->addr, I2C_DELAY); ack = i2c_sendbyte(dev->bus, (subaddr = *data++), I2C_DELAY); ack = i2c_sendbyte(dev->bus, (dev->reg[subaddr] = *data++), I2C_DELAY); len -= 2; while (len > 1 && *data == ++subaddr) { data++; ack = i2c_sendbyte(dev->bus, (dev->reg[subaddr] = *data++), I2C_DELAY); len -= 2; } i2c_stop(dev->bus); UNLOCK_I2C_BUS(dev->bus); } return ack; } /* ----------------------------------------------------------------------- */ static const unsigned char init_common[] = { 0x3a, 0x0f, /* CBENB=0, V656=0, VY2C=1, YUV2C=1, MY2C=1, MUV2C=1 */ 0x42, 0x6b, /* OVLY0=107 */ 0x43, 0x00, /* OVLU0=0 white */ 0x44, 0x00, /* OVLV0=0 */ 0x45, 0x22, /* OVLY1=34 */ 0x46, 0xac, /* OVLU1=172 yellow */ 0x47, 0x0e, /* OVLV1=14 */ 0x48, 0x03, /* OVLY2=3 */ 0x49, 0x1d, /* OVLU2=29 cyan */ 0x4a, 0xac, /* OVLV2=172 */ 0x4b, 0xf0, /* OVLY3=240 */ 0x4c, 0xc8, /* OVLU3=200 green */ 0x4d, 0xb9, /* OVLV3=185 */ 0x4e, 0xd4, /* OVLY4=212 */ 0x4f, 0x38, /* OVLU4=56 magenta */ 0x50, 0x47, /* OVLV4=71 */ 0x51, 0xc1, /* OVLY5=193 */ 0x52, 0xe3, /* OVLU5=227 red */ 0x53, 0x54, /* OVLV5=84 */ 0x54, 0xa3, /* OVLY6=163 */ 0x55, 0x54, /* OVLU6=84 blue */ 0x56, 0xf2, /* OVLV6=242 */ 0x57, 0x90, /* OVLY7=144 */ 0x58, 0x00, /* OVLU7=0 black */ 0x59, 0x00, /* OVLV7=0 */ 0x5a, 0x00, /* CHPS=0 */ 0x5b, 0x76, /* GAINU=118 */ 0x5c, 0xa5, /* GAINV=165 */ 0x5d, 0x3c, /* BLCKL=60 */ 0x5e, 0x3a, /* BLNNL=58 */ 0x5f, 0x3a, /* CCRS=0, BLNVB=58 */ 0x60, 0x00, /* NULL */ /* 0x61 - 0x66 set according to norm */ 0x67, 0x00, /* 0 : caption 1st byte odd field */ 0x68, 0x00, /* 0 : caption 2nd byte odd field */ 0x69, 0x00, /* 0 : caption 1st byte even field */ 0x6a, 0x00, /* 0 : caption 2nd byte even field */ 0x6b, 0x91, /* MODIN=2, PCREF=0, SCCLN=17 */ 0x6c, 0x20, /* SRCV1=0, TRCV2=1, ORCV1=0, PRCV1=0, CBLF=0, ORCV2=0, PRCV2=0 */ 0x6d, 0x00, /* SRCM1=0, CCEN=0 */ 0x6e, 0x0e, /* HTRIG=0x00e, approx. centered, at least for PAL */ 0x6f, 0x00, /* HTRIG upper bits */ 0x70, 0x20, /* PHRES=0, SBLN=1, VTRIG=0 */ /* The following should not be needed */ 0x71, 0x15, /* BMRQ=0x115 */ 0x72, 0x90, /* EMRQ=0x690 */ 0x73, 0x61, /* EMRQ=0x690, BMRQ=0x115 */ 0x74, 0x00, /* NULL */ 0x75, 0x00, /* NULL */ 0x76, 0x00, /* NULL */ 0x77, 0x15, /* BRCV=0x115 */ 0x78, 0x90, /* ERCV=0x690 */ 0x79, 0x61, /* ERCV=0x690, BRCV=0x115 */ /* Field length controls */ 0x7a, 0x70, /* FLC=0 */ /* The following should not be needed if SBLN = 1 */ 0x7b, 0x16, /* FAL=22 */ 0x7c, 0x35, /* LAL=244 */ 0x7d, 0x20, /* LAL=244, FAL=22 */ }; static const unsigned char init_pal[] = { 0x61, 0x1e, /* FISE=0, PAL=1, SCBW=1, RTCE=1, YGS=1, INPI=0, DOWN=0 */ 0x62, 0xc8, /* DECTYP=1, BSTA=72 */ 0x63, 0xcb, /* FSC0 */ 0x64, 0x8a, /* FSC1 */ 0x65, 0x09, /* FSC2 */ 0x66, 0x2a, /* FSC3 */ }; static const unsigned char init_ntsc[] = { 0x61, 0x1d, /* FISE=1, PAL=0, SCBW=1, RTCE=1, YGS=1, INPI=0, DOWN=0 */ 0x62, 0xe6, /* DECTYP=1, BSTA=102 */ 0x63, 0x1f, /* FSC0 */ 0x64, 0x7c, /* FSC1 */ 0x65, 0xf0, /* FSC2 */ 0x66, 0x21, /* FSC3 */ }; static int saa7185_attach(struct i2c_device *device) { int i; struct saa7185 *encoder; device->data = encoder = kmalloc(sizeof(struct saa7185), GFP_KERNEL); if (encoder == NULL) { return -ENOMEM; } MOD_INC_USE_COUNT; memset(encoder, 0, sizeof(struct saa7185)); strcpy(device->name, "saa7185"); encoder->bus = device->bus; encoder->addr = device->addr; encoder->norm = VIDEO_MODE_NTSC; encoder->enable = 1; i = saa7185_write_block(encoder, init_common, sizeof(init_common)); if (i >= 0) { i = saa7185_write_block(encoder, init_ntsc, sizeof(init_ntsc)); } if (i < 0) { printk(KERN_ERR "%s_attach: init error %d\n", device->name, i); } return 0; } static int saa7185_detach(struct i2c_device *device) { kfree(device->data); MOD_DEC_USE_COUNT; return 0; } static int saa7185_command(struct i2c_device *device, unsigned int cmd, void *arg) { struct saa7185 *encoder = device->data; switch (cmd) { case ENCODER_GET_CAPABILITIES: { struct video_encoder_capability *cap = arg; cap->flags = VIDEO_ENCODER_PAL | VIDEO_ENCODER_NTSC | VIDEO_ENCODER_SECAM | VIDEO_ENCODER_CCIR; cap->inputs = 1; cap->outputs = 1; } break; case ENCODER_SET_NORM: { int *iarg = arg; switch (*iarg) { case VIDEO_MODE_NTSC: saa7185_write_block(encoder, init_ntsc, sizeof(init_ntsc)); break; case VIDEO_MODE_PAL: saa7185_write_block(encoder, init_pal, sizeof(init_pal)); break; case VIDEO_MODE_SECAM: default: return -EINVAL; } encoder->norm = *iarg; } break; case ENCODER_SET_INPUT: { int *iarg = arg; #if 0 /* not much choice of inputs */ if (*iarg != 0) { return -EINVAL; } #else /* RJ: *iarg = 0: input is from SA7111 *iarg = 1: input is from ZR36060 */ switch (*iarg) { case 0: /* Switch RTCE to 1 */ saa7185_write(encoder, 0x61, (encoder->reg[0x61] & 0xf7) | 0x08); break; case 1: /* Switch RTCE to 0 */ saa7185_write(encoder, 0x61, (encoder->reg[0x61] & 0xf7) | 0x00); break; default: return -EINVAL; } #endif } break; case ENCODER_SET_OUTPUT: { int *iarg = arg; /* not much choice of outputs */ if (*iarg != 0) { return -EINVAL; } } break; case ENCODER_ENABLE_OUTPUT: { int *iarg = arg; encoder->enable = !!*iarg; saa7185_write(encoder, 0x61, (encoder->reg[0x61] & 0xbf) | (encoder->enable ? 0x00 : 0x40)); } break; default: return -EINVAL; } return 0; } /* ----------------------------------------------------------------------- */ struct i2c_driver i2c_driver_saa7185 = { "saa7185", /* name */ I2C_DRIVERID_VIDEOENCODER, /* ID */ I2C_SAA7185, I2C_SAA7185 + 1, saa7185_attach, saa7185_detach, saa7185_command }; EXPORT_NO_SYMBOLS; #ifdef MODULE int init_module(void) #else int saa7185_init(void) #endif { return i2c_register_driver(&i2c_driver_saa7185); } #ifdef MODULE void cleanup_module(void) { i2c_unregister_driver(&i2c_driver_saa7185); } #endif |