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