Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * budget-core.c: driver for the SAA7146 based Budget DVB cards |
| 3 | * |
| 4 | * Compiled from various sources by Michael Hunold <michael@mihu.de> |
| 5 | * |
| 6 | * Copyright (C) 2002 Ralph Metzler <rjkm@metzlerbros.de> |
| 7 | * |
| 8 | * Copyright (C) 1999-2002 Ralph Metzler |
| 9 | * & Marcus Metzler for convergence integrated media GmbH |
| 10 | * |
| 11 | * 26feb2004 Support for FS Activy Card (Grundig tuner) by |
| 12 | * Michael Dreher <michael@5dot1.de>, |
| 13 | * Oliver Endriss <o.endriss@gmx.de>, |
| 14 | * Andreas 'randy' Weinberger |
| 15 | * |
| 16 | * This program is free software; you can redistribute it and/or |
| 17 | * modify it under the terms of the GNU General Public License |
| 18 | * as published by the Free Software Foundation; either version 2 |
| 19 | * of the License, or (at your option) any later version. |
| 20 | * |
| 21 | * |
| 22 | * This program is distributed in the hope that it will be useful, |
| 23 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 25 | * GNU General Public License for more details. |
| 26 | * |
| 27 | * |
| 28 | * You should have received a copy of the GNU General Public License |
| 29 | * along with this program; if not, write to the Free Software |
| 30 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 31 | * Or, point your browser to http://www.gnu.org/copyleft/gpl.html |
| 32 | * |
| 33 | * |
| 34 | * the project's page is at http://www.linuxtv.org/dvb/ |
| 35 | */ |
| 36 | |
| 37 | #include <linux/moduleparam.h> |
| 38 | |
| 39 | #include "budget.h" |
| 40 | #include "ttpci-eeprom.h" |
| 41 | |
| 42 | int budget_debug; |
| 43 | module_param_named(debug, budget_debug, int, 0644); |
| 44 | MODULE_PARM_DESC(debug, "Turn on/off budget debugging (default:off)."); |
| 45 | |
| 46 | /**************************************************************************** |
| 47 | * TT budget / WinTV Nova |
| 48 | ****************************************************************************/ |
| 49 | |
| 50 | static int stop_ts_capture(struct budget *budget) |
| 51 | { |
| 52 | dprintk(2, "budget: %p\n", budget); |
| 53 | |
| 54 | if (--budget->feeding) |
| 55 | return budget->feeding; |
| 56 | |
| 57 | saa7146_write(budget->dev, MC1, MASK_20); // DMA3 off |
| 58 | SAA7146_IER_DISABLE(budget->dev, MASK_10); |
| 59 | return 0; |
| 60 | } |
| 61 | |
| 62 | static int start_ts_capture(struct budget *budget) |
| 63 | { |
| 64 | struct saa7146_dev *dev = budget->dev; |
| 65 | |
| 66 | dprintk(2, "budget: %p\n", budget); |
| 67 | |
| 68 | if (budget->feeding) |
| 69 | return ++budget->feeding; |
| 70 | |
| 71 | saa7146_write(dev, MC1, MASK_20); // DMA3 off |
| 72 | |
| 73 | memset(budget->grabbing, 0x00, TS_HEIGHT * TS_WIDTH); |
| 74 | |
| 75 | saa7146_write(dev, PCI_BT_V1, 0x001c0000 | (saa7146_read(dev, PCI_BT_V1) & ~0x001f0000)); |
| 76 | |
| 77 | budget->tsf = 0xff; |
| 78 | budget->ttbp = 0; |
| 79 | |
| 80 | /* |
| 81 | * Signal path on the Activy: |
| 82 | * |
| 83 | * tuner -> SAA7146 port A -> SAA7146 BRS -> SAA7146 DMA3 -> memory |
| 84 | * |
| 85 | * Since the tuner feeds 204 bytes packets into the SAA7146, |
| 86 | * DMA3 is configured to strip the trailing 16 FEC bytes: |
| 87 | * Pitch: 188, NumBytes3: 188, NumLines3: 1024 |
| 88 | */ |
| 89 | |
| 90 | switch(budget->card->type) { |
| 91 | case BUDGET_FS_ACTIVY: |
| 92 | saa7146_write(dev, DD1_INIT, 0x04000000); |
| 93 | saa7146_write(dev, MC2, (MASK_09 | MASK_25)); |
| 94 | saa7146_write(dev, BRS_CTRL, 0x00000000); |
| 95 | break; |
| 96 | case BUDGET_PATCH: |
| 97 | saa7146_write(dev, DD1_INIT, 0x00000200); |
| 98 | saa7146_write(dev, MC2, (MASK_10 | MASK_26)); |
| 99 | saa7146_write(dev, BRS_CTRL, 0x60000000); |
| 100 | break; |
| 101 | default: |
| 102 | if (budget->video_port == BUDGET_VIDEO_PORTA) { |
| 103 | saa7146_write(dev, DD1_INIT, 0x06000200); |
| 104 | saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26)); |
| 105 | saa7146_write(dev, BRS_CTRL, 0x00000000); |
| 106 | } else { |
| 107 | saa7146_write(dev, DD1_INIT, 0x02000600); |
| 108 | saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26)); |
| 109 | saa7146_write(dev, BRS_CTRL, 0x60000000); |
| 110 | } |
| 111 | } |
| 112 | |
| 113 | saa7146_write(dev, MC2, (MASK_08 | MASK_24)); |
| 114 | mdelay(10); |
| 115 | |
| 116 | saa7146_write(dev, BASE_ODD3, 0); |
| 117 | saa7146_write(dev, BASE_EVEN3, 0); |
| 118 | saa7146_write(dev, PROT_ADDR3, TS_WIDTH * TS_HEIGHT); |
| 119 | saa7146_write(dev, BASE_PAGE3, budget->pt.dma | ME1 | 0x90); |
| 120 | |
| 121 | if (budget->card->type == BUDGET_FS_ACTIVY) { |
| 122 | saa7146_write(dev, PITCH3, TS_WIDTH / 2); |
| 123 | saa7146_write(dev, NUM_LINE_BYTE3, ((TS_HEIGHT * 2) << 16) | (TS_WIDTH / 2)); |
| 124 | } else { |
| 125 | saa7146_write(dev, PITCH3, TS_WIDTH); |
| 126 | saa7146_write(dev, NUM_LINE_BYTE3, (TS_HEIGHT << 16) | TS_WIDTH); |
| 127 | } |
| 128 | |
| 129 | saa7146_write(dev, MC2, (MASK_04 | MASK_20)); |
| 130 | |
| 131 | SAA7146_ISR_CLEAR(budget->dev, MASK_10); /* VPE */ |
| 132 | SAA7146_IER_ENABLE(budget->dev, MASK_10); /* VPE */ |
| 133 | saa7146_write(dev, MC1, (MASK_04 | MASK_20)); /* DMA3 on */ |
| 134 | |
| 135 | return ++budget->feeding; |
| 136 | } |
| 137 | |
| 138 | static void vpeirq(unsigned long data) |
| 139 | { |
| 140 | struct budget *budget = (struct budget *) data; |
| 141 | u8 *mem = (u8 *) (budget->grabbing); |
| 142 | u32 olddma = budget->ttbp; |
| 143 | u32 newdma = saa7146_read(budget->dev, PCI_VDP3); |
| 144 | |
| 145 | /* nearest lower position divisible by 188 */ |
| 146 | newdma -= newdma % 188; |
| 147 | |
| 148 | if (newdma >= TS_BUFLEN) |
| 149 | return; |
| 150 | |
| 151 | budget->ttbp = newdma; |
| 152 | |
| 153 | if (budget->feeding == 0 || newdma == olddma) |
| 154 | return; |
| 155 | |
| 156 | if (newdma > olddma) { /* no wraparound, dump olddma..newdma */ |
| 157 | dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, (newdma - olddma) / 188); |
| 158 | } else { /* wraparound, dump olddma..buflen and 0..newdma */ |
| 159 | dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, (TS_BUFLEN - olddma) / 188); |
| 160 | dvb_dmx_swfilter_packets(&budget->demux, mem, newdma / 188); |
| 161 | } |
| 162 | } |
| 163 | |
| 164 | |
| 165 | int ttpci_budget_debiread(struct budget *budget, u32 config, int addr, int count, |
| 166 | int uselocks, int nobusyloop) |
| 167 | { |
| 168 | struct saa7146_dev *saa = budget->dev; |
| 169 | int result = 0; |
| 170 | unsigned long flags = 0; |
| 171 | |
| 172 | if (count > 4 || count <= 0) |
| 173 | return 0; |
| 174 | |
| 175 | if (uselocks) |
| 176 | spin_lock_irqsave(&budget->debilock, flags); |
| 177 | |
| 178 | if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) { |
| 179 | if (uselocks) |
| 180 | spin_unlock_irqrestore(&budget->debilock, flags); |
| 181 | return result; |
| 182 | } |
| 183 | |
| 184 | saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x10000 | (addr & 0xffff)); |
| 185 | saa7146_write(saa, DEBI_CONFIG, config); |
| 186 | saa7146_write(saa, DEBI_PAGE, 0); |
| 187 | saa7146_write(saa, MC2, (2 << 16) | 2); |
| 188 | |
| 189 | if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) { |
| 190 | if (uselocks) |
| 191 | spin_unlock_irqrestore(&budget->debilock, flags); |
| 192 | return result; |
| 193 | } |
| 194 | |
| 195 | result = saa7146_read(saa, DEBI_AD); |
| 196 | result &= (0xffffffffUL >> ((4 - count) * 8)); |
| 197 | |
| 198 | if (uselocks) |
| 199 | spin_unlock_irqrestore(&budget->debilock, flags); |
| 200 | |
| 201 | return result; |
| 202 | } |
| 203 | |
| 204 | int ttpci_budget_debiwrite(struct budget *budget, u32 config, int addr, |
| 205 | int count, u32 value, int uselocks, int nobusyloop) |
| 206 | { |
| 207 | struct saa7146_dev *saa = budget->dev; |
| 208 | unsigned long flags = 0; |
| 209 | int result; |
| 210 | |
| 211 | if (count > 4 || count <= 0) |
| 212 | return 0; |
| 213 | |
| 214 | if (uselocks) |
| 215 | spin_lock_irqsave(&budget->debilock, flags); |
| 216 | |
| 217 | if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) { |
| 218 | if (uselocks) |
| 219 | spin_unlock_irqrestore(&budget->debilock, flags); |
| 220 | return result; |
| 221 | } |
| 222 | |
| 223 | saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x00000 | (addr & 0xffff)); |
| 224 | saa7146_write(saa, DEBI_CONFIG, config); |
| 225 | saa7146_write(saa, DEBI_PAGE, 0); |
| 226 | saa7146_write(saa, DEBI_AD, value); |
| 227 | saa7146_write(saa, MC2, (2 << 16) | 2); |
| 228 | |
| 229 | if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) { |
| 230 | if (uselocks) |
| 231 | spin_unlock_irqrestore(&budget->debilock, flags); |
| 232 | return result; |
| 233 | } |
| 234 | |
| 235 | if (uselocks) |
| 236 | spin_unlock_irqrestore(&budget->debilock, flags); |
| 237 | return 0; |
| 238 | } |
| 239 | |
| 240 | |
| 241 | /**************************************************************************** |
| 242 | * DVB API SECTION |
| 243 | ****************************************************************************/ |
| 244 | |
| 245 | static int budget_start_feed(struct dvb_demux_feed *feed) |
| 246 | { |
| 247 | struct dvb_demux *demux = feed->demux; |
| 248 | struct budget *budget = (struct budget *) demux->priv; |
| 249 | int status; |
| 250 | |
| 251 | dprintk(2, "budget: %p\n", budget); |
| 252 | |
| 253 | if (!demux->dmx.frontend) |
| 254 | return -EINVAL; |
| 255 | |
| 256 | spin_lock(&budget->feedlock); |
| 257 | feed->pusi_seen = 0; /* have a clean section start */ |
| 258 | status = start_ts_capture(budget); |
| 259 | spin_unlock(&budget->feedlock); |
| 260 | return status; |
| 261 | } |
| 262 | |
| 263 | static int budget_stop_feed(struct dvb_demux_feed *feed) |
| 264 | { |
| 265 | struct dvb_demux *demux = feed->demux; |
| 266 | struct budget *budget = (struct budget *) demux->priv; |
| 267 | int status; |
| 268 | |
| 269 | dprintk(2, "budget: %p\n", budget); |
| 270 | |
| 271 | spin_lock(&budget->feedlock); |
| 272 | status = stop_ts_capture(budget); |
| 273 | spin_unlock(&budget->feedlock); |
| 274 | return status; |
| 275 | } |
| 276 | |
| 277 | static int budget_register(struct budget *budget) |
| 278 | { |
| 279 | struct dvb_demux *dvbdemux = &budget->demux; |
| 280 | int ret; |
| 281 | |
| 282 | dprintk(2, "budget: %p\n", budget); |
| 283 | |
| 284 | dvbdemux->priv = (void *) budget; |
| 285 | |
| 286 | dvbdemux->filternum = 256; |
| 287 | dvbdemux->feednum = 256; |
| 288 | dvbdemux->start_feed = budget_start_feed; |
| 289 | dvbdemux->stop_feed = budget_stop_feed; |
| 290 | dvbdemux->write_to_decoder = NULL; |
| 291 | |
| 292 | dvbdemux->dmx.capabilities = (DMX_TS_FILTERING | DMX_SECTION_FILTERING | |
| 293 | DMX_MEMORY_BASED_FILTERING); |
| 294 | |
| 295 | dvb_dmx_init(&budget->demux); |
| 296 | |
| 297 | budget->dmxdev.filternum = 256; |
| 298 | budget->dmxdev.demux = &dvbdemux->dmx; |
| 299 | budget->dmxdev.capabilities = 0; |
| 300 | |
| 301 | dvb_dmxdev_init(&budget->dmxdev, budget->dvb_adapter); |
| 302 | |
| 303 | budget->hw_frontend.source = DMX_FRONTEND_0; |
| 304 | |
| 305 | ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->hw_frontend); |
| 306 | |
| 307 | if (ret < 0) |
| 308 | return ret; |
| 309 | |
| 310 | budget->mem_frontend.source = DMX_MEMORY_FE; |
| 311 | ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->mem_frontend); |
| 312 | if (ret < 0) |
| 313 | return ret; |
| 314 | |
| 315 | ret = dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, &budget->hw_frontend); |
| 316 | if (ret < 0) |
| 317 | return ret; |
| 318 | |
| 319 | dvb_net_init(budget->dvb_adapter, &budget->dvb_net, &dvbdemux->dmx); |
| 320 | |
| 321 | return 0; |
| 322 | } |
| 323 | |
| 324 | static void budget_unregister(struct budget *budget) |
| 325 | { |
| 326 | struct dvb_demux *dvbdemux = &budget->demux; |
| 327 | |
| 328 | dprintk(2, "budget: %p\n", budget); |
| 329 | |
| 330 | dvb_net_release(&budget->dvb_net); |
| 331 | |
| 332 | dvbdemux->dmx.close(&dvbdemux->dmx); |
| 333 | dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->hw_frontend); |
| 334 | dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->mem_frontend); |
| 335 | |
| 336 | dvb_dmxdev_release(&budget->dmxdev); |
| 337 | dvb_dmx_release(&budget->demux); |
| 338 | } |
| 339 | |
| 340 | int ttpci_budget_init(struct budget *budget, struct saa7146_dev *dev, |
| 341 | struct saa7146_pci_extension_data *info, |
| 342 | struct module *owner) |
| 343 | { |
| 344 | int length = TS_WIDTH * TS_HEIGHT; |
| 345 | int ret = 0; |
| 346 | struct budget_info *bi = info->ext_priv; |
| 347 | |
| 348 | memset(budget, 0, sizeof(struct budget)); |
| 349 | |
| 350 | dprintk(2, "dev: %p, budget: %p\n", dev, budget); |
| 351 | |
| 352 | budget->card = bi; |
| 353 | budget->dev = (struct saa7146_dev *) dev; |
| 354 | |
| 355 | dvb_register_adapter(&budget->dvb_adapter, budget->card->name, owner); |
| 356 | |
| 357 | /* set dd1 stream a & b */ |
| 358 | saa7146_write(dev, DD1_STREAM_B, 0x00000000); |
| 359 | saa7146_write(dev, MC2, (MASK_09 | MASK_25)); |
| 360 | saa7146_write(dev, MC2, (MASK_10 | MASK_26)); |
| 361 | saa7146_write(dev, DD1_INIT, 0x02000000); |
| 362 | saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26)); |
| 363 | |
| 364 | if (bi->type != BUDGET_FS_ACTIVY) |
| 365 | budget->video_port = BUDGET_VIDEO_PORTB; |
| 366 | else |
| 367 | budget->video_port = BUDGET_VIDEO_PORTA; |
| 368 | spin_lock_init(&budget->feedlock); |
| 369 | spin_lock_init(&budget->debilock); |
| 370 | |
| 371 | /* the Siemens DVB needs this if you want to have the i2c chips |
| 372 | get recognized before the main driver is loaded */ |
| 373 | if (bi->type != BUDGET_FS_ACTIVY) |
| 374 | saa7146_write(dev, GPIO_CTRL, 0x500000); /* GPIO 3 = 1 */ |
| 375 | |
| 376 | #ifdef I2C_ADAP_CLASS_TV_DIGITAL |
| 377 | budget->i2c_adap.class = I2C_ADAP_CLASS_TV_DIGITAL; |
| 378 | #else |
| 379 | budget->i2c_adap.class = I2C_CLASS_TV_DIGITAL; |
| 380 | #endif |
| 381 | |
| 382 | strlcpy(budget->i2c_adap.name, budget->card->name, sizeof(budget->i2c_adap.name)); |
| 383 | |
| 384 | saa7146_i2c_adapter_prepare(dev, &budget->i2c_adap, SAA7146_I2C_BUS_BIT_RATE_120); |
| 385 | strcpy(budget->i2c_adap.name, budget->card->name); |
| 386 | |
| 387 | if (i2c_add_adapter(&budget->i2c_adap) < 0) { |
| 388 | dvb_unregister_adapter(budget->dvb_adapter); |
| 389 | return -ENOMEM; |
| 390 | } |
| 391 | |
| 392 | ttpci_eeprom_parse_mac(&budget->i2c_adap, budget->dvb_adapter->proposed_mac); |
| 393 | |
| 394 | if (NULL == |
| 395 | (budget->grabbing = saa7146_vmalloc_build_pgtable(dev->pci, length, &budget->pt))) { |
| 396 | ret = -ENOMEM; |
| 397 | goto err; |
| 398 | } |
| 399 | |
| 400 | saa7146_write(dev, PCI_BT_V1, 0x001c0000); |
| 401 | /* upload all */ |
| 402 | saa7146_write(dev, GPIO_CTRL, 0x000000); |
| 403 | |
| 404 | tasklet_init(&budget->vpe_tasklet, vpeirq, (unsigned long) budget); |
| 405 | |
| 406 | /* frontend power on */ |
| 407 | if (bi->type == BUDGET_FS_ACTIVY) |
| 408 | saa7146_setgpio(dev, 1, SAA7146_GPIO_OUTHI); |
| 409 | else |
| 410 | saa7146_setgpio(dev, 2, SAA7146_GPIO_OUTHI); |
| 411 | |
| 412 | if (budget_register(budget) == 0) { |
| 413 | return 0; |
| 414 | } |
| 415 | err: |
| 416 | i2c_del_adapter(&budget->i2c_adap); |
| 417 | |
| 418 | vfree(budget->grabbing); |
| 419 | |
| 420 | dvb_unregister_adapter(budget->dvb_adapter); |
| 421 | |
| 422 | return ret; |
| 423 | } |
| 424 | |
| 425 | int ttpci_budget_deinit(struct budget *budget) |
| 426 | { |
| 427 | struct saa7146_dev *dev = budget->dev; |
| 428 | |
| 429 | dprintk(2, "budget: %p\n", budget); |
| 430 | |
| 431 | budget_unregister(budget); |
| 432 | |
| 433 | i2c_del_adapter(&budget->i2c_adap); |
| 434 | |
| 435 | dvb_unregister_adapter(budget->dvb_adapter); |
| 436 | |
| 437 | tasklet_kill(&budget->vpe_tasklet); |
| 438 | |
| 439 | saa7146_pgtable_free(dev->pci, &budget->pt); |
| 440 | |
| 441 | vfree(budget->grabbing); |
| 442 | |
| 443 | return 0; |
| 444 | } |
| 445 | |
| 446 | void ttpci_budget_irq10_handler(struct saa7146_dev *dev, u32 * isr) |
| 447 | { |
| 448 | struct budget *budget = (struct budget *) dev->ext_priv; |
| 449 | |
| 450 | dprintk(8, "dev: %p, budget: %p\n", dev, budget); |
| 451 | |
| 452 | if (*isr & MASK_10) |
| 453 | tasklet_schedule(&budget->vpe_tasklet); |
| 454 | } |
| 455 | |
| 456 | void ttpci_budget_set_video_port(struct saa7146_dev *dev, int video_port) |
| 457 | { |
| 458 | struct budget *budget = (struct budget *) dev->ext_priv; |
| 459 | |
| 460 | spin_lock(&budget->feedlock); |
| 461 | budget->video_port = video_port; |
| 462 | if (budget->feeding) { |
| 463 | int oldfeeding = budget->feeding; |
| 464 | budget->feeding = 1; |
| 465 | stop_ts_capture(budget); |
| 466 | start_ts_capture(budget); |
| 467 | budget->feeding = oldfeeding; |
| 468 | } |
| 469 | spin_unlock(&budget->feedlock); |
| 470 | } |
| 471 | |
| 472 | EXPORT_SYMBOL_GPL(ttpci_budget_debiread); |
| 473 | EXPORT_SYMBOL_GPL(ttpci_budget_debiwrite); |
| 474 | EXPORT_SYMBOL_GPL(ttpci_budget_init); |
| 475 | EXPORT_SYMBOL_GPL(ttpci_budget_deinit); |
| 476 | EXPORT_SYMBOL_GPL(ttpci_budget_irq10_handler); |
| 477 | EXPORT_SYMBOL_GPL(ttpci_budget_set_video_port); |
| 478 | EXPORT_SYMBOL_GPL(budget_debug); |
| 479 | |
| 480 | MODULE_LICENSE("GPL"); |