drivers/media/dvb/ddbridge/ddbridge-core.c

   1 /*
   2  * ddbridge.c: Digital Devices PCIe bridge driver
   3  *
   4  * Copyright (C) 2010-2011 Digital Devices GmbH
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * version 2 only, as published by the Free Software Foundation.
   9  *
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  20  * 02110-1301, USA
  21  * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
  22  */
  23
  24 #include <linux/module.h>
  25 #include <linux/init.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/delay.h>
  28 #include <linux/slab.h>
  29 #include <linux/poll.h>
  30 #include <linux/io.h>
  31 #include <linux/pci.h>
  32 #include <linux/pci_ids.h>
  33 #include <linux/timer.h>
  34 #include <linux/i2c.h>
  35 #include <linux/swab.h>
  36 #include <linux/vmalloc.h>
  37 #include "ddbridge.h"
  38
  39 #include "ddbridge-regs.h"
  40
  41 #include "tda18271c2dd.h"
  42 #include "stv6110x.h"
  43 #include "stv090x.h"
  44 #include "lnbh24.h"
  45 #include "drxk.h"
  46
  47 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  48
  49 /* MSI had problems with lost interrupts, fixed but needs testing */
  50 #undef CONFIG_PCI_MSI
  51
  52 /******************************************************************************/
  53
  54 static int i2c_read(struct i2c_adapter *adapter, u8 adr, u8 *val)
  55 {
  56         struct i2c_msg msgs[1] = {{.addr = adr,  .flags = I2C_M_RD,
  57                                    .buf  = val,  .len   = 1 } };
  58         return (i2c_transfer(adapter, msgs, 1) == 1) ? 0 : -1;
  59 }
  60
  61 static int i2c_read_reg(struct i2c_adapter *adapter, u8 adr, u8 reg, u8 *val)
  62 {
  63         struct i2c_msg msgs[2] = {{.addr = adr,  .flags = 0,
  64                                    .buf  = &reg, .len   = 1 },
  65                                   {.addr = adr,  .flags = I2C_M_RD,
  66                                    .buf  = val,  .len   = 1 } };
  67         return (i2c_transfer(adapter, msgs, 2) == 2) ? 0 : -1;
  68 }
  69
  70 static int i2c_read_reg16(struct i2c_adapter *adapter, u8 adr,
  71                           u16 reg, u8 *val)
  72 {
  73         u8 msg[2] = {reg>>8, reg&0xff};
  74         struct i2c_msg msgs[2] = {{.addr = adr, .flags = 0,
  75                                    .buf  = msg, .len   = 2},
  76                                   {.addr = adr, .flags = I2C_M_RD,
  77                                    .buf  = val, .len   = 1} };
  78         return (i2c_transfer(adapter, msgs, 2) == 2) ? 0 : -1;
  79 }
  80
  81 static int ddb_i2c_cmd(struct ddb_i2c *i2c, u32 adr, u32 cmd)
  82 {
  83         struct ddb *dev = i2c->dev;
  84         int stat;
  85         u32 val;
  86
  87         i2c->done = 0;
  88         ddbwritel((adr << 9) | cmd, i2c->regs + I2C_COMMAND);
  89         stat = wait_event_timeout(i2c->wq, i2c->done == 1, HZ);
  90         if (stat <= 0) {
  91                 printk(KERN_ERR "I2C timeout\n");
  92                 { /* MSI debugging*/
  93                         u32 istat = ddbreadl(INTERRUPT_STATUS);
  94                         printk(KERN_ERR "IRS %08x\n", istat);
  95                         ddbwritel(istat, INTERRUPT_ACK);
  96                 }
  97                 return -EIO;
  98         }
  99         val = ddbreadl(i2c->regs+I2C_COMMAND);
 100         if (val & 0x70000)
 101                 return -EIO;
 102         return 0;
 103 }
 104
 105 static int ddb_i2c_master_xfer(struct i2c_adapter *adapter,
 106                                struct i2c_msg msg[], int num)
 107 {
 108         struct ddb_i2c *i2c = (struct ddb_i2c *)i2c_get_adapdata(adapter);
 109         struct ddb *dev = i2c->dev;
 110         u8 addr = 0;
 111
 112         if (num)
 113                 addr = msg[0].addr;
 114
 115         if (num == 2 && msg[1].flags & I2C_M_RD &&
 116             !(msg[0].flags & I2C_M_RD)) {
 117                 memcpy_toio(dev->regs + I2C_TASKMEM_BASE + i2c->wbuf,
 118                             msg[0].buf, msg[0].len);
 119                 ddbwritel(msg[0].len|(msg[1].len << 16),
 120                           i2c->regs+I2C_TASKLENGTH);
 121                 if (!ddb_i2c_cmd(i2c, addr, 1)) {
 122                         memcpy_fromio(msg[1].buf,
 123                                       dev->regs + I2C_TASKMEM_BASE + i2c->rbuf,
 124                                       msg[1].len);
 125                         return num;
 126                 }
 127         }
 128
 129         if (num == 1 && !(msg[0].flags & I2C_M_RD)) {
 130                 ddbcpyto(I2C_TASKMEM_BASE + i2c->wbuf, msg[0].buf, msg[0].len);
 131                 ddbwritel(msg[0].len, i2c->regs + I2C_TASKLENGTH);
 132                 if (!ddb_i2c_cmd(i2c, addr, 2))
 133                         return num;
 134         }
 135         if (num == 1 && (msg[0].flags & I2C_M_RD)) {
 136                 ddbwritel(msg[0].len << 16, i2c->regs + I2C_TASKLENGTH);
 137                 if (!ddb_i2c_cmd(i2c, addr, 3)) {
 138                         ddbcpyfrom(msg[0].buf,
 139                                    I2C_TASKMEM_BASE + i2c->rbuf, msg[0].len);
 140                         return num;
 141                 }
 142         }
 143         return -EIO;
 144 }
 145
 146
 147 static u32 ddb_i2c_functionality(struct i2c_adapter *adap)
 148 {
 149         return I2C_FUNC_SMBUS_EMUL;
 150 }
 151
 152 struct i2c_algorithm ddb_i2c_algo = {
 153         .master_xfer   = ddb_i2c_master_xfer,
 154         .functionality = ddb_i2c_functionality,
 155 };
 156
 157 static void ddb_i2c_release(struct ddb *dev)
 158 {
 159         int i;
 160         struct ddb_i2c *i2c;
 161         struct i2c_adapter *adap;
 162
 163         for (i = 0; i < dev->info->port_num; i++) {
 164                 i2c = &dev->i2c[i];
 165                 adap = &i2c->adap;
 166                 i2c_del_adapter(adap);
 167         }
 168 }
 169
 170 static int ddb_i2c_init(struct ddb *dev)
 171 {
 172         int i, j, stat = 0;
 173         struct ddb_i2c *i2c;
 174         struct i2c_adapter *adap;
 175
 176         for (i = 0; i < dev->info->port_num; i++) {
 177                 i2c = &dev->i2c[i];
 178                 i2c->dev = dev;
 179                 i2c->nr = i;
 180                 i2c->wbuf = i * (I2C_TASKMEM_SIZE / 4);
 181                 i2c->rbuf = i2c->wbuf + (I2C_TASKMEM_SIZE / 8);
 182                 i2c->regs = 0x80 + i * 0x20;
 183                 ddbwritel(I2C_SPEED_100, i2c->regs + I2C_TIMING);
 184                 ddbwritel((i2c->rbuf << 16) | i2c->wbuf,
 185                           i2c->regs + I2C_TASKADDRESS);
 186                 init_waitqueue_head(&i2c->wq);
 187
 188                 adap = &i2c->adap;
 189                 i2c_set_adapdata(adap, i2c);
 190 #ifdef I2C_ADAP_CLASS_TV_DIGITAL
 191                 adap->class = I2C_ADAP_CLASS_TV_DIGITAL|I2C_CLASS_TV_ANALOG;
 192 #else
 193 #ifdef I2C_CLASS_TV_ANALOG
 194                 adap->class = I2C_CLASS_TV_ANALOG;
 195 #endif
 196 #endif
 197                 strcpy(adap->name, "ddbridge");
 198                 adap->algo = &ddb_i2c_algo;
 199                 adap->algo_data = (void *)i2c;
 200                 adap->dev.parent = &dev->pdev->dev;
 201                 stat = i2c_add_adapter(adap);
 202                 if (stat)
 203                         break;
 204         }
 205         if (stat)
 206                 for (j = 0; j < i; j++) {
 207                         i2c = &dev->i2c[j];
 208                         adap = &i2c->adap;
 209                         i2c_del_adapter(adap);
 210                 }
 211         return stat;
 212 }
 213
 214
 215 /******************************************************************************/
 216 /******************************************************************************/
 217 /******************************************************************************/
 218
 219 #if 0
 220 static void set_table(struct ddb *dev, u32 off,
 221                       dma_addr_t *pbuf, u32 num)
 222 {
 223         u32 i, base;
 224         u64 mem;
 225
 226         base = DMA_BASE_ADDRESS_TABLE + off;
 227         for (i = 0; i < num; i++) {
 228                 mem = pbuf[i];
 229                 ddbwritel(mem & 0xffffffff, base + i * 8);
 230                 ddbwritel(mem >> 32, base + i * 8 + 4);
 231         }
 232 }
 233 #endif
 234
 235 static void ddb_address_table(struct ddb *dev)
 236 {
 237         u32 i, j, base;
 238         u64 mem;
 239         dma_addr_t *pbuf;
 240
 241         for (i = 0; i < dev->info->port_num * 2; i++) {
 242                 base = DMA_BASE_ADDRESS_TABLE + i * 0x100;
 243                 pbuf = dev->input[i].pbuf;
 244                 for (j = 0; j < dev->input[i].dma_buf_num; j++) {
 245                         mem = pbuf[j];
 246                         ddbwritel(mem & 0xffffffff, base + j * 8);
 247                         ddbwritel(mem >> 32, base + j * 8 + 4);
 248                 }
 249         }
 250         for (i = 0; i < dev->info->port_num; i++) {
 251                 base = DMA_BASE_ADDRESS_TABLE + 0x800 + i * 0x100;
 252                 pbuf = dev->output[i].pbuf;
 253                 for (j = 0; j < dev->output[i].dma_buf_num; j++) {
 254                         mem = pbuf[j];
 255                         ddbwritel(mem & 0xffffffff, base + j * 8);
 256                         ddbwritel(mem >> 32, base + j * 8 + 4);
 257                 }
 258         }
 259 }
 260
 261 static void io_free(struct pci_dev *pdev, u8 **vbuf,
 262                     dma_addr_t *pbuf, u32 size, int num)
 263 {
 264         int i;
 265
 266         for (i = 0; i < num; i++) {
 267                 if (vbuf[i]) {
 268                         pci_free_consistent(pdev, size, vbuf[i], pbuf[i]);
 269                         vbuf[i] = 0;
 270                 }
 271         }
 272 }
 273
 274 static int io_alloc(struct pci_dev *pdev, u8 **vbuf,
 275                     dma_addr_t *pbuf, u32 size, int num)
 276 {
 277         int i;
 278
 279         for (i = 0; i < num; i++) {
 280                 vbuf[i] = pci_alloc_consistent(pdev, size, &pbuf[i]);
 281                 if (!vbuf[i])
 282                         return -ENOMEM;
 283         }
 284         return 0;
 285 }
 286
 287 static int ddb_buffers_alloc(struct ddb *dev)
 288 {
 289         int i;
 290         struct ddb_port *port;
 291
 292         for (i = 0; i < dev->info->port_num; i++) {
 293                 port = &dev->port[i];
 294                 switch (port->class) {
 295                 case DDB_PORT_TUNER:
 296                         if (io_alloc(dev->pdev, port->input[0]->vbuf,
 297                                      port->input[0]->pbuf,
 298                                      port->input[0]->dma_buf_size,
 299                                      port->input[0]->dma_buf_num) < 0)
 300                                 return -1;
 301                         if (io_alloc(dev->pdev, port->input[1]->vbuf,
 302                                      port->input[1]->pbuf,
 303                                      port->input[1]->dma_buf_size,
 304                                      port->input[1]->dma_buf_num) < 0)
 305                                 return -1;
 306                         break;
 307                 case DDB_PORT_CI:
 308                         if (io_alloc(dev->pdev, port->input[0]->vbuf,
 309                                      port->input[0]->pbuf,
 310                                      port->input[0]->dma_buf_size,
 311                                      port->input[0]->dma_buf_num) < 0)
 312                                 return -1;
 313                         if (io_alloc(dev->pdev, port->output->vbuf,
 314                                      port->output->pbuf,
 315                                      port->output->dma_buf_size,
 316                                      port->output->dma_buf_num) < 0)
 317                                 return -1;
 318                         break;
 319                 default:
 320                         break;
 321                 }
 322         }
 323         ddb_address_table(dev);
 324         return 0;
 325 }
 326
 327 static void ddb_buffers_free(struct ddb *dev)
 328 {
 329         int i;
 330         struct ddb_port *port;
 331
 332         for (i = 0; i < dev->info->port_num; i++) {
 333                 port = &dev->port[i];
 334                 io_free(dev->pdev, port->input[0]->vbuf,
 335                         port->input[0]->pbuf,
 336                         port->input[0]->dma_buf_size,
 337                         port->input[0]->dma_buf_num);
 338                 io_free(dev->pdev, port->input[1]->vbuf,
 339                         port->input[1]->pbuf,
 340                         port->input[1]->dma_buf_size,
 341                         port->input[1]->dma_buf_num);
 342                 io_free(dev->pdev, port->output->vbuf,
 343                         port->output->pbuf,
 344                         port->output->dma_buf_size,
 345                         port->output->dma_buf_num);
 346         }
 347 }
 348
 349 static void ddb_input_start(struct ddb_input *input)
 350 {
 351         struct ddb *dev = input->port->dev;
 352
 353         spin_lock_irq(&input->lock);
 354         input->cbuf = 0;
 355         input->coff = 0;
 356
 357         /* reset */
 358         ddbwritel(0, TS_INPUT_CONTROL(input->nr));
 359         ddbwritel(2, TS_INPUT_CONTROL(input->nr));
 360         ddbwritel(0, TS_INPUT_CONTROL(input->nr));
 361
 362         ddbwritel((1 << 16) |
 363                   (input->dma_buf_num << 11) |
 364                   (input->dma_buf_size >> 7),
 365                   DMA_BUFFER_SIZE(input->nr));
 366         ddbwritel(0, DMA_BUFFER_ACK(input->nr));
 367
 368         ddbwritel(1, DMA_BASE_WRITE);
 369         ddbwritel(3, DMA_BUFFER_CONTROL(input->nr));
 370         ddbwritel(9, TS_INPUT_CONTROL(input->nr));
 371         input->running = 1;
 372         spin_unlock_irq(&input->lock);
 373 }
 374
 375 static void ddb_input_stop(struct ddb_input *input)
 376 {
 377         struct ddb *dev = input->port->dev;
 378
 379         spin_lock_irq(&input->lock);
 380         ddbwritel(0, TS_INPUT_CONTROL(input->nr));
 381         ddbwritel(0, DMA_BUFFER_CONTROL(input->nr));
 382         input->running = 0;
 383         spin_unlock_irq(&input->lock);
 384 }
 385
 386 static void ddb_output_start(struct ddb_output *output)
 387 {
 388         struct ddb *dev = output->port->dev;
 389
 390         spin_lock_irq(&output->lock);
 391         output->cbuf = 0;
 392         output->coff = 0;
 393         ddbwritel(0, TS_OUTPUT_CONTROL(output->nr));
 394         ddbwritel(2, TS_OUTPUT_CONTROL(output->nr));
 395         ddbwritel(0, TS_OUTPUT_CONTROL(output->nr));
 396         ddbwritel(0x3c, TS_OUTPUT_CONTROL(output->nr));
 397         ddbwritel((1 << 16) |
 398                   (output->dma_buf_num << 11) |
 399                   (output->dma_buf_size >> 7),
 400                   DMA_BUFFER_SIZE(output->nr + 8));
 401         ddbwritel(0, DMA_BUFFER_ACK(output->nr + 8));
 402
 403         ddbwritel(1, DMA_BASE_READ);
 404         ddbwritel(3, DMA_BUFFER_CONTROL(output->nr + 8));
 405         /* ddbwritel(0xbd, TS_OUTPUT_CONTROL(output->nr)); */
 406         ddbwritel(0x1d, TS_OUTPUT_CONTROL(output->nr));
 407         output->running = 1;
 408         spin_unlock_irq(&output->lock);
 409 }
 410
 411 static void ddb_output_stop(struct ddb_output *output)
 412 {
 413         struct ddb *dev = output->port->dev;
 414
 415         spin_lock_irq(&output->lock);
 416         ddbwritel(0, TS_OUTPUT_CONTROL(output->nr));
 417         ddbwritel(0, DMA_BUFFER_CONTROL(output->nr + 8));
 418         output->running = 0;
 419         spin_unlock_irq(&output->lock);
 420 }
 421
 422 static u32 ddb_output_free(struct ddb_output *output)
 423 {
 424         u32 idx, off, stat = output->stat;
 425         s32 diff;
 426
 427         idx = (stat >> 11) & 0x1f;
 428         off = (stat & 0x7ff) << 7;
 429
 430         if (output->cbuf != idx) {
 431                 if ((((output->cbuf + 1) % output->dma_buf_num) == idx) &&
 432                     (output->dma_buf_size - output->coff <= 188))
 433                         return 0;
 434                 return 188;
 435         }
 436         diff = off - output->coff;
 437         if (diff <= 0 || diff > 188)
 438                 return 188;
 439         return 0;
 440 }
 441
 442 static ssize_t ddb_output_write(struct ddb_output *output,
 443                                 const u8 *buf, size_t count)
 444 {
 445         struct ddb *dev = output->port->dev;
 446         u32 idx, off, stat = output->stat;
 447         u32 left = count, len;
 448
 449         idx = (stat >> 11) & 0x1f;
 450         off = (stat & 0x7ff) << 7;
 451
 452         while (left) {
 453                 len = output->dma_buf_size - output->coff;
 454                 if ((((output->cbuf + 1) % output->dma_buf_num) == idx) &&
 455                     (off == 0)) {
 456                         if (len <= 188)
 457                                 break;
 458                         len -= 188;
 459                 }
 460                 if (output->cbuf == idx) {
 461                         if (off > output->coff) {
 462 #if 1
 463                                 len = off - output->coff;
 464                                 len -= (len % 188);
 465                                 if (len <= 188)
 466
 467 #endif
 468                                         break;
 469                                 len -= 188;
 470                         }
 471                 }
 472                 if (len > left)
 473                         len = left;
 474                 if (copy_from_user(output->vbuf[output->cbuf] + output->coff,
 475                                    buf, len))
 476                         return -EIO;
 477                 left -= len;
 478                 buf += len;
 479                 output->coff += len;
 480                 if (output->coff == output->dma_buf_size) {
 481                         output->coff = 0;
 482                         output->cbuf = ((output->cbuf + 1) % output->dma_buf_num);
 483                 }
 484                 ddbwritel((output->cbuf << 11) | (output->coff >> 7),
 485                           DMA_BUFFER_ACK(output->nr + 8));
 486         }
 487         return count - left;
 488 }
 489
 490 static u32 ddb_input_avail(struct ddb_input *input)
 491 {
 492         struct ddb *dev = input->port->dev;
 493         u32 idx, off, stat = input->stat;
 494         u32 ctrl = ddbreadl(DMA_BUFFER_CONTROL(input->nr));
 495
 496         idx = (stat >> 11) & 0x1f;
 497         off = (stat & 0x7ff) << 7;
 498
 499         if (ctrl & 4) {
 500                 printk(KERN_ERR "IA %d %d %08x\n", idx, off, ctrl);
 501                 ddbwritel(input->stat, DMA_BUFFER_ACK(input->nr));
 502                 return 0;
 503         }
 504         if (input->cbuf != idx)
 505                 return 188;
 506         return 0;
 507 }
 508
 509 static ssize_t ddb_input_read(struct ddb_input *input, u8 *buf, size_t count)
 510 {
 511         struct ddb *dev = input->port->dev;
 512         u32 left = count;
 513         u32 idx, free, stat = input->stat;
 514         int ret;
 515
 516         idx = (stat >> 11) & 0x1f;
 517
 518         while (left) {
 519                 if (input->cbuf == idx)
 520                         return count - left;
 521                 free = input->dma_buf_size - input->coff;
 522                 if (free > left)
 523                         free = left;
 524                 ret = copy_to_user(buf, input->vbuf[input->cbuf] +
 525                                    input->coff, free);
 526                 if (ret)
 527                         return -EFAULT;
 528                 input->coff += free;
 529                 if (input->coff == input->dma_buf_size) {
 530                         input->coff = 0;
 531                         input->cbuf = (input->cbuf+1) % input->dma_buf_num;
 532                 }
 533                 left -= free;
 534                 ddbwritel((input->cbuf << 11) | (input->coff >> 7),
 535                           DMA_BUFFER_ACK(input->nr));
 536         }
 537         return count;
 538 }
 539
 540 /******************************************************************************/
 541 /******************************************************************************/
 542 /******************************************************************************/
 543
 544 #if 0
 545 static struct ddb_input *fe2input(struct ddb *dev, struct dvb_frontend *fe)
 546 {
 547         int i;
 548
 549         for (i = 0; i < dev->info->port_num * 2; i++) {
 550                 if (dev->input[i].fe == fe)
 551                         return &dev->input[i];
 552         }
 553         return NULL;
 554 }
 555 #endif
 556
 557 static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
 558 {
 559         struct ddb_input *input = fe->sec_priv;
 560         struct ddb_port *port = input->port;
 561         int status;
 562
 563         if (enable) {
 564                 mutex_lock(&port->i2c_gate_lock);
 565                 status = input->gate_ctrl(fe, 1);
 566         } else {
 567                 status = input->gate_ctrl(fe, 0);
 568                 mutex_unlock(&port->i2c_gate_lock);
 569         }
 570         return status;
 571 }
 572
 573 static int demod_attach_drxk(struct ddb_input *input)
 574 {
 575         struct i2c_adapter *i2c = &input->port->i2c->adap;
 576         struct dvb_frontend *fe;
 577         struct drxk_config config;
 578
 579         memset(&config, 0, sizeof(config));
 580         config.microcode_name = "drxk_a3.mc";
 581         config.qam_demod_parameter_count = 4;
 582         config.adr = 0x29 + (input->nr & 1);
 583
 584         fe = input->fe = dvb_attach(drxk_attach, &config, i2c);
 585         if (!input->fe) {
 586                 printk(KERN_ERR "No DRXK found!\n");
 587                 return -ENODEV;
 588         }
 589         fe->sec_priv = input;
 590         input->gate_ctrl = fe->ops.i2c_gate_ctrl;
 591         fe->ops.i2c_gate_ctrl = drxk_gate_ctrl;
 592         return 0;
 593 }
 594
 595 static int tuner_attach_tda18271(struct ddb_input *input)
 596 {
 597         struct i2c_adapter *i2c = &input->port->i2c->adap;
 598         struct dvb_frontend *fe;
 599
 600         if (input->fe->ops.i2c_gate_ctrl)
 601                 input->fe->ops.i2c_gate_ctrl(input->fe, 1);
 602         fe = dvb_attach(tda18271c2dd_attach, input->fe, i2c, 0x60);
 603         if (!fe) {
 604                 printk(KERN_ERR "No TDA18271 found!\n");
 605                 return -ENODEV;
 606         }
 607         if (input->fe->ops.i2c_gate_ctrl)
 608                 input->fe->ops.i2c_gate_ctrl(input->fe, 0);
 609         return 0;
 610 }
 611
 612 /******************************************************************************/
 613 /******************************************************************************/
 614 /******************************************************************************/
 615
 616 static struct stv090x_config stv0900 = {
 617         .device         = STV0900,
 618         .demod_mode     = STV090x_DUAL,
 619         .clk_mode       = STV090x_CLK_EXT,
 620
 621         .xtal           = 27000000,
 622         .address        = 0x69,
 623
 624         .ts1_mode       = STV090x_TSMODE_SERIAL_PUNCTURED,
 625         .ts2_mode       = STV090x_TSMODE_SERIAL_PUNCTURED,
 626
 627         .repeater_level = STV090x_RPTLEVEL_16,
 628
 629         .adc1_range     = STV090x_ADC_1Vpp,
 630         .adc2_range     = STV090x_ADC_1Vpp,
 631
 632         .diseqc_envelope_mode = true,
 633 };
 634
 635 static struct stv090x_config stv0900_aa = {
 636         .device         = STV0900,
 637         .demod_mode     = STV090x_DUAL,
 638         .clk_mode       = STV090x_CLK_EXT,
 639
 640         .xtal           = 27000000,
 641         .address        = 0x68,
 642
 643         .ts1_mode       = STV090x_TSMODE_SERIAL_PUNCTURED,
 644         .ts2_mode       = STV090x_TSMODE_SERIAL_PUNCTURED,
 645
 646         .repeater_level = STV090x_RPTLEVEL_16,
 647
 648         .adc1_range     = STV090x_ADC_1Vpp,
 649         .adc2_range     = STV090x_ADC_1Vpp,
 650
 651         .diseqc_envelope_mode = true,
 652 };
 653
 654 static struct stv6110x_config stv6110a = {
 655         .addr    = 0x60,
 656         .refclk  = 27000000,
 657         .clk_div = 1,
 658 };
 659
 660 static struct stv6110x_config stv6110b = {
 661         .addr    = 0x63,
 662         .refclk  = 27000000,
 663         .clk_div = 1,
 664 };
 665
 666 static int demod_attach_stv0900(struct ddb_input *input, int type)
 667 {
 668         struct i2c_adapter *i2c = &input->port->i2c->adap;
 669         struct stv090x_config *feconf = type ? &stv0900_aa : &stv0900;
 670
 671         input->fe = dvb_attach(stv090x_attach, feconf, i2c,
 672                                (input->nr & 1) ? STV090x_DEMODULATOR_1
 673                                : STV090x_DEMODULATOR_0);
 674         if (!input->fe) {
 675                 printk(KERN_ERR "No STV0900 found!\n");
 676                 return -ENODEV;
 677         }
 678         if (!dvb_attach(lnbh24_attach, input->fe, i2c, 0,
 679                         0, (input->nr & 1) ?
 680                         (0x09 - type) : (0x0b - type))) {
 681                 printk(KERN_ERR "No LNBH24 found!\n");
 682                 return -ENODEV;
 683         }
 684         return 0;
 685 }
 686
 687 static int tuner_attach_stv6110(struct ddb_input *input, int type)
 688 {
 689         struct i2c_adapter *i2c = &input->port->i2c->adap;
 690         struct stv090x_config *feconf = type ? &stv0900_aa : &stv0900;
 691         struct stv6110x_config *tunerconf = (input->nr & 1) ?
 692                 &stv6110b : &stv6110a;
 693         struct stv6110x_devctl *ctl;
 694
 695         ctl = dvb_attach(stv6110x_attach, input->fe, tunerconf, i2c);
 696         if (!ctl) {
 697                 printk(KERN_ERR "No STV6110X found!\n");
 698                 return -ENODEV;
 699         }
 700         printk(KERN_INFO "attach tuner input %d adr %02x\n",
 701                          input->nr, tunerconf->addr);
 702
 703         feconf->tuner_init          = ctl->tuner_init;
 704         feconf->tuner_sleep         = ctl->tuner_sleep;
 705         feconf->tuner_set_mode      = ctl->tuner_set_mode;
 706         feconf->tuner_set_frequency = ctl->tuner_set_frequency;
 707         feconf->tuner_get_frequency = ctl->tuner_get_frequency;
 708         feconf->tuner_set_bandwidth = ctl->tuner_set_bandwidth;
 709         feconf->tuner_get_bandwidth = ctl->tuner_get_bandwidth;
 710         feconf->tuner_set_bbgain    = ctl->tuner_set_bbgain;
 711         feconf->tuner_get_bbgain    = ctl->tuner_get_bbgain;
 712         feconf->tuner_set_refclk    = ctl->tuner_set_refclk;
 713         feconf->tuner_get_status    = ctl->tuner_get_status;
 714
 715         return 0;
 716 }
 717
 718 static int my_dvb_dmx_ts_card_init(struct dvb_demux *dvbdemux, char *id,
 719                             int (*start_feed)(struct dvb_demux_feed *),
 720                             int (*stop_feed)(struct dvb_demux_feed *),
 721                             void *priv)
 722 {
 723         dvbdemux->priv = priv;
 724
 725         dvbdemux->filternum = 256;
 726         dvbdemux->feednum = 256;
 727         dvbdemux->start_feed = start_feed;
 728         dvbdemux->stop_feed = stop_feed;
 729         dvbdemux->write_to_decoder = NULL;
 730         dvbdemux->dmx.capabilities = (DMX_TS_FILTERING |
 731                                       DMX_SECTION_FILTERING |
 732                                       DMX_MEMORY_BASED_FILTERING);
 733         return dvb_dmx_init(dvbdemux);
 734 }
 735
 736 static int my_dvb_dmxdev_ts_card_init(struct dmxdev *dmxdev,
 737                                struct dvb_demux *dvbdemux,
 738                                struct dmx_frontend *hw_frontend,
 739                                struct dmx_frontend *mem_frontend,
 740                                struct dvb_adapter *dvb_adapter)
 741 {
 742         int ret;
 743
 744         dmxdev->filternum = 256;
 745         dmxdev->demux = &dvbdemux->dmx;
 746         dmxdev->capabilities = 0;
 747         ret = dvb_dmxdev_init(dmxdev, dvb_adapter);
 748         if (ret < 0)
 749                 return ret;
 750
 751         hw_frontend->source = DMX_FRONTEND_0;
 752         dvbdemux->dmx.add_frontend(&dvbdemux->dmx, hw_frontend);
 753         mem_frontend->source = DMX_MEMORY_FE;
 754         dvbdemux->dmx.add_frontend(&dvbdemux->dmx, mem_frontend);
 755         return dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, hw_frontend);
 756 }
 757
 758 static int start_feed(struct dvb_demux_feed *dvbdmxfeed)
 759 {
 760         struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
 761         struct ddb_input *input = dvbdmx->priv;
 762
 763         if (!input->users)
 764                 ddb_input_start(input);
 765
 766         return ++input->users;
 767 }
 768
 769 static int stop_feed(struct dvb_demux_feed *dvbdmxfeed)
 770 {
 771         struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
 772         struct ddb_input *input = dvbdmx->priv;
 773
 774         if (--input->users)
 775                 return input->users;
 776
 777         ddb_input_stop(input);
 778         return 0;
 779 }
 780
 781
 782 static void dvb_input_detach(struct ddb_input *input)
 783 {
 784         struct dvb_adapter *adap = &input->adap;
 785         struct dvb_demux *dvbdemux = &input->demux;
 786
 787         switch (input->attached) {
 788         case 5:
 789                 if (input->fe2)
 790                         dvb_unregister_frontend(input->fe2);
 791                 if (input->fe) {
 792                         dvb_unregister_frontend(input->fe);
 793                         dvb_frontend_detach(input->fe);
 794                         input->fe = NULL;
 795                 }
 796         case 4:
 797                 dvb_net_release(&input->dvbnet);
 798
 799         case 3:
 800                 dvbdemux->dmx.close(&dvbdemux->dmx);
 801                 dvbdemux->dmx.remove_frontend(&dvbdemux->dmx,
 802                                               &input->hw_frontend);
 803                 dvbdemux->dmx.remove_frontend(&dvbdemux->dmx,
 804                                               &input->mem_frontend);
 805                 dvb_dmxdev_release(&input->dmxdev);
 806
 807         case 2:
 808                 dvb_dmx_release(&input->demux);
 809
 810         case 1:
 811                 dvb_unregister_adapter(adap);
 812         }
 813         input->attached = 0;
 814 }
 815
 816 static int dvb_input_attach(struct ddb_input *input)
 817 {
 818         int ret;
 819         struct ddb_port *port = input->port;
 820         struct dvb_adapter *adap = &input->adap;
 821         struct dvb_demux *dvbdemux = &input->demux;
 822
 823         ret = dvb_register_adapter(adap, "DDBridge", THIS_MODULE,
 824                                    &input->port->dev->pdev->dev,
 825                                    adapter_nr);
 826         if (ret < 0) {
 827                 printk(KERN_ERR "ddbridge: Could not register adapter."
 828                        "Check if you enabled enough adapters in dvb-core!\n");
 829                 return ret;
 830         }
 831         input->attached = 1;
 832
 833         ret = my_dvb_dmx_ts_card_init(dvbdemux, "SW demux",
 834                                       start_feed,
 835                                       stop_feed, input);
 836         if (ret < 0)
 837                 return ret;
 838         input->attached = 2;
 839
 840         ret = my_dvb_dmxdev_ts_card_init(&input->dmxdev, &input->demux,
 841                                          &input->hw_frontend,
 842                                          &input->mem_frontend, adap);
 843         if (ret < 0)
 844                 return ret;
 845         input->attached = 3;
 846
 847         ret = dvb_net_init(adap, &input->dvbnet, input->dmxdev.demux);
 848         if (ret < 0)
 849                 return ret;
 850         input->attached = 4;
 851
 852         input->fe = 0;
 853         switch (port->type) {
 854         case DDB_TUNER_DVBS_ST:
 855                 if (demod_attach_stv0900(input, 0) < 0)
 856                         return -ENODEV;
 857                 if (tuner_attach_stv6110(input, 0) < 0)
 858                         return -ENODEV;
 859                 if (input->fe) {
 860                         if (dvb_register_frontend(adap, input->fe) < 0)
 861                                 return -ENODEV;
 862                 }
 863                 break;
 864         case DDB_TUNER_DVBS_ST_AA:
 865                 if (demod_attach_stv0900(input, 1) < 0)
 866                         return -ENODEV;
 867                 if (tuner_attach_stv6110(input, 1) < 0)
 868                         return -ENODEV;
 869                 if (input->fe) {
 870                         if (dvb_register_frontend(adap, input->fe) < 0)
 871                                 return -ENODEV;
 872                 }
 873                 break;
 874         case DDB_TUNER_DVBCT_TR:
 875                 if (demod_attach_drxk(input) < 0)
 876                         return -ENODEV;
 877                 if (tuner_attach_tda18271(input) < 0)
 878                         return -ENODEV;
 879                 if (input->fe) {
 880                         if (dvb_register_frontend(adap, input->fe) < 0)
 881                                 return -ENODEV;
 882                 }
 883                 if (input->fe2) {
 884                         if (dvb_register_frontend(adap, input->fe2) < 0)
 885                                 return -ENODEV;
 886                         input->fe2->tuner_priv = input->fe->tuner_priv;
 887                         memcpy(&input->fe2->ops.tuner_ops,
 888                                &input->fe->ops.tuner_ops,
 889                                sizeof(struct dvb_tuner_ops));
 890                 }
 891                 break;
 892         }
 893         input->attached = 5;
 894         return 0;
 895 }
 896
 897 /****************************************************************************/
 898 /****************************************************************************/
 899
 900 static ssize_t ts_write(struct file *file, const char *buf,
 901                         size_t count, loff_t *ppos)
 902 {
 903         struct dvb_device *dvbdev = file->private_data;
 904         struct ddb_output *output = dvbdev->priv;
 905         size_t left = count;
 906         int stat;
 907
 908         while (left) {
 909                 if (ddb_output_free(output) < 188) {
 910                         if (file->f_flags & O_NONBLOCK)
 911                                 break;
 912                         if (wait_event_interruptible(
 913                                     output->wq, ddb_output_free(output) >= 188) < 0)
 914                                 break;
 915                 }
 916                 stat = ddb_output_write(output, buf, left);
 917                 if (stat < 0)
 918                         break;
 919                 buf += stat;
 920                 left -= stat;
 921         }
 922         return (left == count) ? -EAGAIN : (count - left);
 923 }
 924
 925 static ssize_t ts_read(struct file *file, char *buf,
 926                        size_t count, loff_t *ppos)
 927 {
 928         struct dvb_device *dvbdev = file->private_data;
 929         struct ddb_output *output = dvbdev->priv;
 930         struct ddb_input *input = output->port->input[0];
 931         int left, read;
 932
 933         count -= count % 188;
 934         left = count;
 935         while (left) {
 936                 if (ddb_input_avail(input) < 188) {
 937                         if (file->f_flags & O_NONBLOCK)
 938                                 break;
 939                         if (wait_event_interruptible(
 940                                     input->wq, ddb_input_avail(input) >= 188) < 0)
 941                                 break;
 942                 }
 943                 read = ddb_input_read(input, buf, left);
 944                 if (read < 0)
 945                         return read;
 946                 left -= read;
 947                 buf += read;
 948         }
 949         return (left == count) ? -EAGAIN : (count - left);
 950 }
 951
 952 static unsigned int ts_poll(struct file *file, poll_table *wait)
 953 {
 954         /*
 955         struct dvb_device *dvbdev = file->private_data;
 956         struct ddb_output *output = dvbdev->priv;
 957         struct ddb_input *input = output->port->input[0];
 958         */
 959         unsigned int mask = 0;
 960
 961 #if 0
 962         if (data_avail_to_read)
 963                 mask |= POLLIN | POLLRDNORM;
 964         if (data_avail_to_write)
 965                 mask |= POLLOUT | POLLWRNORM;
 966
 967         poll_wait(file, &read_queue, wait);
 968         poll_wait(file, &write_queue, wait);
 969 #endif
 970         return mask;
 971 }
 972
 973 static const struct file_operations ci_fops = {
 974         .owner   = THIS_MODULE,
 975         .read    = ts_read,
 976         .write   = ts_write,
 977         .open    = dvb_generic_open,
 978         .release = dvb_generic_release,
 979         .poll    = ts_poll,
 980         .mmap    = 0,
 981 };
 982
 983 static struct dvb_device dvbdev_ci = {
 984         .priv    = 0,
 985         .readers = -1,
 986         .writers = -1,
 987         .users   = -1,
 988         .fops    = &ci_fops,
 989 };
 990
 991 /****************************************************************************/
 992 /****************************************************************************/
 993 /****************************************************************************/
 994
 995 static void input_tasklet(unsigned long data)
 996 {
 997         struct ddb_input *input = (struct ddb_input *) data;
 998         struct ddb *dev = input->port->dev;
 999
1000         spin_lock(&input->lock);
1001         if (!input->running) {
1002                 spin_unlock(&input->lock);
1003                 return;
1004         }
1005         input->stat = ddbreadl(DMA_BUFFER_CURRENT(input->nr));
1006
1007         if (input->port->class == DDB_PORT_TUNER) {
1008                 if (4&ddbreadl(DMA_BUFFER_CONTROL(input->nr)))
1009                         printk(KERN_ERR "Overflow input %d\n", input->nr);
1010                 while (input->cbuf != ((input->stat >> 11) & 0x1f)
1011                        || (4&ddbreadl(DMA_BUFFER_CONTROL(input->nr)))) {
1012                         dvb_dmx_swfilter_packets(&input->demux,
1013                                                  input->vbuf[input->cbuf],
1014                                                  input->dma_buf_size / 188);
1015
1016                         input->cbuf = (input->cbuf + 1) % input->dma_buf_num;
1017                         ddbwritel((input->cbuf << 11),
1018                                   DMA_BUFFER_ACK(input->nr));
1019                         input->stat = ddbreadl(DMA_BUFFER_CURRENT(input->nr));
1020                        }
1021         }
1022         if (input->port->class == DDB_PORT_CI)
1023                 wake_up(&input->wq);
1024         spin_unlock(&input->lock);
1025 }
1026
1027 static void output_tasklet(unsigned long data)
1028 {
1029         struct ddb_output *output = (struct ddb_output *) data;
1030         struct ddb *dev = output->port->dev;
1031
1032         spin_lock(&output->lock);
1033         if (!output->running) {
1034                 spin_unlock(&output->lock);
1035                 return;
1036         }
1037         output->stat = ddbreadl(DMA_BUFFER_CURRENT(output->nr + 8));
1038         wake_up(&output->wq);
1039         spin_unlock(&output->lock);
1040 }
1041
1042
1043 struct cxd2099_cfg cxd_cfg = {
1044         .bitrate =  62000,
1045         .adr     =  0x40,
1046         .polarity = 1,
1047         .clock_mode = 1,
1048 };
1049
1050 static int ddb_ci_attach(struct ddb_port *port)
1051 {
1052         int ret;
1053
1054         ret = dvb_register_adapter(&port->output->adap,
1055                                    "DDBridge",
1056                                    THIS_MODULE,
1057                                    &port->dev->pdev->dev,
1058                                    adapter_nr);
1059         if (ret < 0)
1060                 return ret;
1061         port->en = cxd2099_attach(&cxd_cfg, port, &port->i2c->adap);
1062         if (!port->en) {
1063                 dvb_unregister_adapter(&port->output->adap);
1064                 return -ENODEV;
1065         }
1066         ddb_input_start(port->input[0]);
1067         ddb_output_start(port->output);
1068         dvb_ca_en50221_init(&port->output->adap,
1069                             port->en, 0, 1);
1070         ret = dvb_register_device(&port->output->adap, &port->output->dev,
1071                                   &dvbdev_ci, (void *) port->output,
1072                                   DVB_DEVICE_SEC);
1073         return ret;
1074 }
1075
1076 static int ddb_port_attach(struct ddb_port *port)
1077 {
1078         int ret = 0;
1079
1080         switch (port->class) {
1081         case DDB_PORT_TUNER:
1082                 ret = dvb_input_attach(port->input[0]);
1083                 if (ret < 0)
1084                         break;
1085                 ret = dvb_input_attach(port->input[1]);
1086                 break;
1087         case DDB_PORT_CI:
1088                 ret = ddb_ci_attach(port);
1089                 break;
1090         default:
1091                 break;
1092         }
1093         if (ret < 0)
1094                 printk(KERN_ERR "port_attach on port %d failed\n", port->nr);
1095         return ret;
1096 }
1097
1098 static int ddb_ports_attach(struct ddb *dev)
1099 {
1100         int i, ret = 0;
1101         struct ddb_port *port;
1102
1103         for (i = 0; i < dev->info->port_num; i++) {
1104                 port = &dev->port[i];
1105                 ret = ddb_port_attach(port);
1106                 if (ret < 0)
1107                         break;
1108         }
1109         return ret;
1110 }
1111
1112 static void ddb_ports_detach(struct ddb *dev)
1113 {
1114         int i;
1115         struct ddb_port *port;
1116
1117         for (i = 0; i < dev->info->port_num; i++) {
1118                 port = &dev->port[i];
1119                 switch (port->class) {
1120                 case DDB_PORT_TUNER:
1121                         dvb_input_detach(port->input[0]);
1122                         dvb_input_detach(port->input[1]);
1123                         break;
1124                 case DDB_PORT_CI:
1125                         if (port->output->dev)
1126                                 dvb_unregister_device(port->output->dev);
1127                         if (port->en) {
1128                                 ddb_input_stop(port->input[0]);
1129                                 ddb_output_stop(port->output);
1130                                 dvb_ca_en50221_release(port->en);
1131                                 kfree(port->en);
1132                                 port->en = 0;
1133                                 dvb_unregister_adapter(&port->output->adap);
1134                         }
1135                         break;
1136                 }
1137         }
1138 }
1139
1140 /****************************************************************************/
1141 /****************************************************************************/
1142
1143 static int port_has_ci(struct ddb_port *port)
1144 {
1145         u8 val;
1146         return i2c_read_reg(&port->i2c->adap, 0x40, 0, &val) ? 0 : 1;
1147 }
1148
1149 static int port_has_stv0900(struct ddb_port *port)
1150 {
1151         u8 val;
1152         if (i2c_read_reg16(&port->i2c->adap, 0x69, 0xf100, &val) < 0)
1153                 return 0;
1154         return 1;
1155 }
1156
1157 static int port_has_stv0900_aa(struct ddb_port *port)
1158 {
1159         u8 val;
1160         if (i2c_read_reg16(&port->i2c->adap, 0x68, 0xf100, &val) < 0)
1161                 return 0;
1162         return 1;
1163 }
1164
1165 static int port_has_drxks(struct ddb_port *port)
1166 {
1167         u8 val;
1168         if (i2c_read(&port->i2c->adap, 0x29, &val) < 0)
1169                 return 0;
1170         if (i2c_read(&port->i2c->adap, 0x2a, &val) < 0)
1171                 return 0;
1172         return 1;
1173 }
1174
1175 static void ddb_port_probe(struct ddb_port *port)
1176 {
1177         struct ddb *dev = port->dev;
1178         char *modname = "NO MODULE";
1179
1180         port->class = DDB_PORT_NONE;
1181
1182         if (port_has_ci(port)) {
1183                 modname = "CI";
1184                 port->class = DDB_PORT_CI;
1185                 ddbwritel(I2C_SPEED_400, port->i2c->regs + I2C_TIMING);
1186         } else if (port_has_stv0900(port)) {
1187                 modname = "DUAL DVB-S2";
1188                 port->class = DDB_PORT_TUNER;
1189                 port->type = DDB_TUNER_DVBS_ST;
1190                 ddbwritel(I2C_SPEED_100, port->i2c->regs + I2C_TIMING);
1191         } else if (port_has_stv0900_aa(port)) {
1192                 modname = "DUAL DVB-S2";
1193                 port->class = DDB_PORT_TUNER;
1194                 port->type = DDB_TUNER_DVBS_ST_AA;
1195                 ddbwritel(I2C_SPEED_100, port->i2c->regs + I2C_TIMING);
1196         } else if (port_has_drxks(port)) {
1197                 modname = "DUAL DVB-C/T";
1198                 port->class = DDB_PORT_TUNER;
1199                 port->type = DDB_TUNER_DVBCT_TR;
1200                 ddbwritel(I2C_SPEED_400, port->i2c->regs + I2C_TIMING);
1201         }
1202         printk(KERN_INFO "Port %d (TAB %d): %s\n",
1203                          port->nr, port->nr+1, modname);
1204 }
1205
1206 static void ddb_input_init(struct ddb_port *port, int nr)
1207 {
1208         struct ddb *dev = port->dev;
1209         struct ddb_input *input = &dev->input[nr];
1210
1211         input->nr = nr;
1212         input->port = port;
1213         input->dma_buf_num = INPUT_DMA_BUFS;
1214         input->dma_buf_size = INPUT_DMA_SIZE;
1215         ddbwritel(0, TS_INPUT_CONTROL(nr));
1216         ddbwritel(2, TS_INPUT_CONTROL(nr));
1217         ddbwritel(0, TS_INPUT_CONTROL(nr));
1218         ddbwritel(0, DMA_BUFFER_ACK(nr));
1219         tasklet_init(&input->tasklet, input_tasklet, (unsigned long) input);
1220         spin_lock_init(&input->lock);
1221         init_waitqueue_head(&input->wq);
1222 }
1223
1224 static void ddb_output_init(struct ddb_port *port, int nr)
1225 {
1226         struct ddb *dev = port->dev;
1227         struct ddb_output *output = &dev->output[nr];
1228         output->nr = nr;
1229         output->port = port;
1230         output->dma_buf_num = OUTPUT_DMA_BUFS;
1231         output->dma_buf_size = OUTPUT_DMA_SIZE;
1232
1233         ddbwritel(0, TS_OUTPUT_CONTROL(nr));
1234         ddbwritel(2, TS_OUTPUT_CONTROL(nr));
1235         ddbwritel(0, TS_OUTPUT_CONTROL(nr));
1236         tasklet_init(&output->tasklet, output_tasklet, (unsigned long) output);
1237         init_waitqueue_head(&output->wq);
1238 }
1239
1240 static void ddb_ports_init(struct ddb *dev)
1241 {
1242         int i;
1243         struct ddb_port *port;
1244
1245         for (i = 0; i < dev->info->port_num; i++) {
1246                 port = &dev->port[i];
1247                 port->dev = dev;
1248                 port->nr = i;
1249                 port->i2c = &dev->i2c[i];
1250                 port->input[0] = &dev->input[2 * i];
1251                 port->input[1] = &dev->input[2 * i + 1];
1252                 port->output = &dev->output[i];
1253
1254                 mutex_init(&port->i2c_gate_lock);
1255                 ddb_port_probe(port);
1256                 ddb_input_init(port, 2 * i);
1257                 ddb_input_init(port, 2 * i + 1);
1258                 ddb_output_init(port, i);
1259         }
1260 }
1261
1262 static void ddb_ports_release(struct ddb *dev)
1263 {
1264         int i;
1265         struct ddb_port *port;
1266
1267         for (i = 0; i < dev->info->port_num; i++) {
1268                 port = &dev->port[i];
1269                 port->dev = dev;
1270                 tasklet_kill(&port->input[0]->tasklet);
1271                 tasklet_kill(&port->input[1]->tasklet);
1272                 tasklet_kill(&port->output->tasklet);
1273         }
1274 }
1275
1276 /****************************************************************************/
1277 /****************************************************************************/
1278 /****************************************************************************/
1279
1280 static void irq_handle_i2c(struct ddb *dev, int n)
1281 {
1282         struct ddb_i2c *i2c = &dev->i2c[n];
1283
1284         i2c->done = 1;
1285         wake_up(&i2c->wq);
1286 }
1287
1288 static irqreturn_t irq_handler(int irq, void *dev_id)
1289 {
1290         struct ddb *dev = (struct ddb *) dev_id;
1291         u32 s = ddbreadl(INTERRUPT_STATUS);
1292
1293         if (!s)
1294                 return IRQ_NONE;
1295
1296         do {
1297                 ddbwritel(s, INTERRUPT_ACK);
1298
1299                 if (s & 0x00000001)
1300                         irq_handle_i2c(dev, 0);
1301                 if (s & 0x00000002)
1302                         irq_handle_i2c(dev, 1);
1303                 if (s & 0x00000004)
1304                         irq_handle_i2c(dev, 2);
1305                 if (s & 0x00000008)
1306                         irq_handle_i2c(dev, 3);
1307
1308                 if (s & 0x00000100)
1309                         tasklet_schedule(&dev->input[0].tasklet);
1310                 if (s & 0x00000200)
1311                         tasklet_schedule(&dev->input[1].tasklet);
1312                 if (s & 0x00000400)
1313                         tasklet_schedule(&dev->input[2].tasklet);
1314                 if (s & 0x00000800)
1315                         tasklet_schedule(&dev->input[3].tasklet);
1316                 if (s & 0x00001000)
1317                         tasklet_schedule(&dev->input[4].tasklet);
1318                 if (s & 0x00002000)
1319                         tasklet_schedule(&dev->input[5].tasklet);
1320                 if (s & 0x00004000)
1321                         tasklet_schedule(&dev->input[6].tasklet);
1322                 if (s & 0x00008000)
1323                         tasklet_schedule(&dev->input[7].tasklet);
1324
1325                 if (s & 0x00010000)
1326                         tasklet_schedule(&dev->output[0].tasklet);
1327                 if (s & 0x00020000)
1328                         tasklet_schedule(&dev->output[1].tasklet);
1329                 if (s & 0x00040000)
1330                         tasklet_schedule(&dev->output[2].tasklet);
1331                 if (s & 0x00080000)
1332                         tasklet_schedule(&dev->output[3].tasklet);
1333
1334                 /* if (s & 0x000f0000)  printk(KERN_DEBUG "%08x\n", istat); */
1335         } while ((s = ddbreadl(INTERRUPT_STATUS)));
1336
1337         return IRQ_HANDLED;
1338 }
1339
1340 /******************************************************************************/
1341 /******************************************************************************/
1342 /******************************************************************************/
1343
1344 static int flashio(struct ddb *dev, u8 *wbuf, u32 wlen, u8 *rbuf, u32 rlen)
1345 {
1346         u32 data, shift;
1347
1348         if (wlen > 4)
1349                 ddbwritel(1, SPI_CONTROL);
1350         while (wlen > 4) {
1351                 /* FIXME: check for big-endian */
1352                 data = swab32(*(u32 *)wbuf);
1353                 wbuf += 4;
1354                 wlen -= 4;
1355                 ddbwritel(data, SPI_DATA);
1356                 while (ddbreadl(SPI_CONTROL) & 0x0004)
1357                         ;
1358         }
1359
1360         if (rlen)
1361                 ddbwritel(0x0001 | ((wlen << (8 + 3)) & 0x1f00), SPI_CONTROL);
1362         else
1363                 ddbwritel(0x0003 | ((wlen << (8 + 3)) & 0x1f00), SPI_CONTROL);
1364
1365         data = 0;
1366         shift = ((4 - wlen) * 8);
1367         while (wlen) {
1368                 data <<= 8;
1369                 data |= *wbuf;
1370                 wlen--;
1371                 wbuf++;
1372         }
1373         if (shift)
1374                 data <<= shift;
1375         ddbwritel(data, SPI_DATA);
1376         while (ddbreadl(SPI_CONTROL) & 0x0004)
1377                 ;
1378
1379         if (!rlen) {
1380                 ddbwritel(0, SPI_CONTROL);
1381                 return 0;
1382         }
1383         if (rlen > 4)
1384                 ddbwritel(1, SPI_CONTROL);
1385
1386         while (rlen > 4) {
1387                 ddbwritel(0xffffffff, SPI_DATA);
1388                 while (ddbreadl(SPI_CONTROL) & 0x0004)
1389                         ;
1390                 data = ddbreadl(SPI_DATA);
1391                 *(u32 *) rbuf = swab32(data);
1392                 rbuf += 4;
1393                 rlen -= 4;
1394         }
1395         ddbwritel(0x0003 | ((rlen << (8 + 3)) & 0x1F00), SPI_CONTROL);
1396         ddbwritel(0xffffffff, SPI_DATA);
1397         while (ddbreadl(SPI_CONTROL) & 0x0004)
1398                 ;
1399
1400         data = ddbreadl(SPI_DATA);
1401         ddbwritel(0, SPI_CONTROL);
1402
1403         if (rlen < 4)
1404                 data <<= ((4 - rlen) * 8);
1405
1406         while (rlen > 0) {
1407                 *rbuf = ((data >> 24) & 0xff);
1408                 data <<= 8;
1409                 rbuf++;
1410                 rlen--;
1411         }
1412         return 0;
1413 }
1414
1415 #define DDB_MAGIC 'd'
1416
1417 struct ddb_flashio {
1418         __u8 *write_buf;
1419         __u32 write_len;
1420         __u8 *read_buf;
1421         __u32 read_len;
1422 };
1423
1424 #define IOCTL_DDB_FLASHIO  _IOWR(DDB_MAGIC, 0x00, struct ddb_flashio)
1425
1426 #define DDB_NAME "ddbridge"
1427
1428 static u32 ddb_num;
1429 static struct ddb *ddbs[32];
1430 static struct class *ddb_class;
1431 static int ddb_major;
1432
1433 static int ddb_open(struct inode *inode, struct file *file)
1434 {
1435         struct ddb *dev = ddbs[iminor(inode)];
1436
1437         file->private_data = dev;
1438         return 0;
1439 }
1440
1441 static long ddb_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
1442 {
1443         struct ddb *dev = file->private_data;
1444         void *parg = (void *)arg;
1445         int res;
1446
1447         switch (cmd) {
1448         case IOCTL_DDB_FLASHIO:
1449         {
1450                 struct ddb_flashio fio;
1451                 u8 *rbuf, *wbuf;
1452
1453                 if (copy_from_user(&fio, parg, sizeof(fio)))
1454                         return -EFAULT;
1455
1456                 if (fio.write_len > 1028 || fio.read_len > 1028)
1457                         return -EINVAL;
1458                 if (fio.write_len + fio.read_len > 1028)
1459                         return -EINVAL;
1460
1461                 wbuf = &dev->iobuf[0];
1462                 rbuf = wbuf + fio.write_len;
1463
1464                 if (copy_from_user(wbuf, fio.write_buf, fio.write_len))
1465                         return -EFAULT;
1466                 res = flashio(dev, wbuf, fio.write_len, rbuf, fio.read_len);
1467                 if (res)
1468                         return res;
1469                 if (copy_to_user(fio.read_buf, rbuf, fio.read_len))
1470                         return -EFAULT;
1471                 break;
1472         }
1473         default:
1474                 return -ENOTTY;
1475         }
1476         return 0;
1477 }
1478
1479 static const struct file_operations ddb_fops = {
1480         .unlocked_ioctl = ddb_ioctl,
1481         .open           = ddb_open,
1482 };
1483
1484 static char *ddb_devnode(struct device *device, umode_t *mode)
1485 {
1486         struct ddb *dev = dev_get_drvdata(device);
1487
1488         return kasprintf(GFP_KERNEL, "ddbridge/card%d", dev->nr);
1489 }
1490
1491 static int ddb_class_create(void)
1492 {
1493         ddb_major = register_chrdev(0, DDB_NAME, &ddb_fops);
1494         if (ddb_major < 0)
1495                 return ddb_major;
1496
1497         ddb_class = class_create(THIS_MODULE, DDB_NAME);
1498         if (IS_ERR(ddb_class)) {
1499                 unregister_chrdev(ddb_major, DDB_NAME);
1500                 return -1;
1501         }
1502         ddb_class->devnode = ddb_devnode;
1503         return 0;
1504 }
1505
1506 static void ddb_class_destroy(void)
1507 {
1508         class_destroy(ddb_class);
1509         unregister_chrdev(ddb_major, DDB_NAME);
1510 }
1511
1512 static int ddb_device_create(struct ddb *dev)
1513 {
1514         dev->nr = ddb_num++;
1515         dev->ddb_dev = device_create(ddb_class, NULL,
1516                                      MKDEV(ddb_major, dev->nr),
1517                                      dev, "ddbridge%d", dev->nr);
1518         ddbs[dev->nr] = dev;
1519         if (IS_ERR(dev->ddb_dev))
1520                 return -1;
1521         return 0;
1522 }
1523
1524 static void ddb_device_destroy(struct ddb *dev)
1525 {
1526         ddb_num--;
1527         if (IS_ERR(dev->ddb_dev))
1528                 return;
1529         device_destroy(ddb_class, MKDEV(ddb_major, 0));
1530 }
1531
1532
1533 /****************************************************************************/
1534 /****************************************************************************/
1535 /****************************************************************************/
1536
1537 static void ddb_unmap(struct ddb *dev)
1538 {
1539         if (dev->regs)
1540                 iounmap(dev->regs);
1541         vfree(dev);
1542 }
1543
1544
1545 static void __devexit ddb_remove(struct pci_dev *pdev)
1546 {
1547         struct ddb *dev = (struct ddb *) pci_get_drvdata(pdev);
1548
1549         ddb_ports_detach(dev);
1550         ddb_i2c_release(dev);
1551
1552         ddbwritel(0, INTERRUPT_ENABLE);
1553         free_irq(dev->pdev->irq, dev);
1554 #ifdef CONFIG_PCI_MSI
1555         if (dev->msi)
1556                 pci_disable_msi(dev->pdev);
1557 #endif
1558         ddb_ports_release(dev);
1559         ddb_buffers_free(dev);
1560         ddb_device_destroy(dev);
1561
1562         ddb_unmap(dev);
1563         pci_set_drvdata(pdev, 0);
1564         pci_disable_device(pdev);
1565 }
1566
1567
1568 static int __devinit ddb_probe(struct pci_dev *pdev,
1569                                const struct pci_device_id *id)
1570 {
1571         struct ddb *dev;
1572         int stat = 0;
1573         int irq_flag = IRQF_SHARED;
1574
1575         if (pci_enable_device(pdev) < 0)
1576                 return -ENODEV;
1577
1578         dev = vmalloc(sizeof(struct ddb));
1579         if (dev == NULL)
1580                 return -ENOMEM;
1581         memset(dev, 0, sizeof(struct ddb));
1582
1583         dev->pdev = pdev;
1584         pci_set_drvdata(pdev, dev);
1585         dev->info = (struct ddb_info *) id->driver_data;
1586         printk(KERN_INFO "DDBridge driver detected: %s\n", dev->info->name);
1587
1588         dev->regs = ioremap(pci_resource_start(dev->pdev, 0),
1589                             pci_resource_len(dev->pdev, 0));
1590         if (!dev->regs) {
1591                 stat = -ENOMEM;
1592                 goto fail;
1593         }
1594         printk(KERN_INFO "HW %08x FW %08x\n", ddbreadl(0), ddbreadl(4));
1595
1596 #ifdef CONFIG_PCI_MSI
1597         if (pci_msi_enabled())
1598                 stat = pci_enable_msi(dev->pdev);
1599         if (stat) {
1600                 printk(KERN_INFO ": MSI not available.\n");
1601         } else {
1602                 irq_flag = 0;
1603                 dev->msi = 1;
1604         }
1605 #endif
1606         stat = request_irq(dev->pdev->irq, irq_handler,
1607                            irq_flag, "DDBridge", (void *) dev);
1608         if (stat < 0)
1609                 goto fail1;
1610         ddbwritel(0, DMA_BASE_WRITE);
1611         ddbwritel(0, DMA_BASE_READ);
1612         ddbwritel(0xffffffff, INTERRUPT_ACK);
1613         ddbwritel(0xfff0f, INTERRUPT_ENABLE);
1614         ddbwritel(0, MSI1_ENABLE);
1615
1616         if (ddb_i2c_init(dev) < 0)
1617                 goto fail1;
1618         ddb_ports_init(dev);
1619         if (ddb_buffers_alloc(dev) < 0) {
1620                 printk(KERN_INFO ": Could not allocate buffer memory\n");
1621                 goto fail2;
1622         }
1623         if (ddb_ports_attach(dev) < 0)
1624                 goto fail3;
1625         ddb_device_create(dev);
1626         return 0;
1627
1628 fail3:
1629         ddb_ports_detach(dev);
1630         printk(KERN_ERR "fail3\n");
1631         ddb_ports_release(dev);
1632 fail2:
1633         printk(KERN_ERR "fail2\n");
1634         ddb_buffers_free(dev);
1635 fail1:
1636         printk(KERN_ERR "fail1\n");
1637         if (dev->msi)
1638                 pci_disable_msi(dev->pdev);
1639         free_irq(dev->pdev->irq, dev);
1640 fail:
1641         printk(KERN_ERR "fail\n");
1642         ddb_unmap(dev);
1643         pci_set_drvdata(pdev, 0);
1644         pci_disable_device(pdev);
1645         return -1;
1646 }
1647
1648 /******************************************************************************/
1649 /******************************************************************************/
1650 /******************************************************************************/
1651
1652 static struct ddb_info ddb_none = {
1653         .type     = DDB_NONE,
1654         .name     = "Digital Devices PCIe bridge",
1655 };
1656
1657 static struct ddb_info ddb_octopus = {
1658         .type     = DDB_OCTOPUS,
1659         .name     = "Digital Devices Octopus DVB adapter",
1660         .port_num = 4,
1661 };
1662
1663 static struct ddb_info ddb_octopus_le = {
1664         .type     = DDB_OCTOPUS,
1665         .name     = "Digital Devices Octopus LE DVB adapter",
1666         .port_num = 2,
1667 };
1668
1669 static struct ddb_info ddb_v6 = {
1670         .type     = DDB_OCTOPUS,
1671         .name     = "Digital Devices Cine S2 V6 DVB adapter",
1672         .port_num = 3,
1673 };
1674
1675 #define DDVID 0xdd01 /* Digital Devices Vendor ID */
1676
1677 #define DDB_ID(_vend, _dev, _subvend, _subdev, _driverdata) {   \
1678         .vendor      = _vend,    .device    = _dev, \
1679         .subvendor   = _subvend, .subdevice = _subdev, \
1680         .driver_data = (unsigned long)&_driverdata }
1681
1682 static const struct pci_device_id ddb_id_tbl[] __devinitdata = {
1683         DDB_ID(DDVID, 0x0002, DDVID, 0x0001, ddb_octopus),
1684         DDB_ID(DDVID, 0x0003, DDVID, 0x0001, ddb_octopus),
1685         DDB_ID(DDVID, 0x0003, DDVID, 0x0002, ddb_octopus_le),
1686         DDB_ID(DDVID, 0x0003, DDVID, 0x0010, ddb_octopus),
1687         DDB_ID(DDVID, 0x0003, DDVID, 0x0020, ddb_v6),
1688         /* in case sub-ids got deleted in flash */
1689         DDB_ID(DDVID, 0x0003, PCI_ANY_ID, PCI_ANY_ID, ddb_none),
1690         {0}
1691 };
1692 MODULE_DEVICE_TABLE(pci, ddb_id_tbl);
1693
1694
1695 static struct pci_driver ddb_pci_driver = {
1696         .name        = "DDBridge",
1697         .id_table    = ddb_id_tbl,
1698         .probe       = ddb_probe,
1699         .remove      = __devexit_p(ddb_remove),
1700 };
1701
1702 static __init int module_init_ddbridge(void)
1703 {
1704         printk(KERN_INFO "Digital Devices PCIE bridge driver, "
1705                "Copyright (C) 2010-11 Digital Devices GmbH\n");
1706         if (ddb_class_create())
1707                 return -1;
1708         return pci_register_driver(&ddb_pci_driver);
1709 }
1710
1711 static __exit void module_exit_ddbridge(void)
1712 {
1713         pci_unregister_driver(&ddb_pci_driver);
1714         ddb_class_destroy();
1715 }
1716
1717 module_init(module_init_ddbridge);
1718 module_exit(module_exit_ddbridge);
1719
1720 MODULE_DESCRIPTION("Digital Devices PCIe Bridge");
1721 MODULE_AUTHOR("Ralph Metzler");
1722 MODULE_LICENSE("GPL");
1723 MODULE_VERSION("0.5");