drivers/media/video/saa7164/saa7164-core.c

   1 /*
   2  *  Driver for the NXP SAA7164 PCIe bridge
   3  *
   4  *  Copyright (c) 2009 Steven Toth <stoth@kernellabs.com>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  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  *
  15  *  GNU General Public License for more details.
  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., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #include <linux/init.h>
  23 #include <linux/list.h>
  24 #include <linux/module.h>
  25 #include <linux/moduleparam.h>
  26 #include <linux/kmod.h>
  27 #include <linux/kernel.h>
  28 #include <linux/slab.h>
  29 #include <linux/interrupt.h>
  30 #include <linux/delay.h>
  31 #include <asm/div64.h>
  32
  33 #include "saa7164.h"
  34
  35 MODULE_DESCRIPTION("Driver for NXP SAA7164 based TV cards");
  36 MODULE_AUTHOR("Steven Toth <stoth@kernellabs.com>");
  37 MODULE_LICENSE("GPL");
  38
  39 /*
  40   1 Basic
  41   2
  42   4 i2c
  43   8 api
  44  16 cmd
  45  32 bus
  46  */
  47
  48 unsigned int saa_debug;
  49 module_param_named(debug, saa_debug, int, 0644);
  50 MODULE_PARM_DESC(debug, "enable debug messages");
  51
  52 unsigned int waitsecs = 10;
  53 module_param(waitsecs, int, 0644);
  54 MODULE_PARM_DESC(debug, "timeout on firmware messages");
  55
  56 static unsigned int card[]  = {[0 ... (SAA7164_MAXBOARDS - 1)] = UNSET };
  57 module_param_array(card,  int, NULL, 0444);
  58 MODULE_PARM_DESC(card, "card type");
  59
  60 static unsigned int saa7164_devcount;
  61
  62 static DEFINE_MUTEX(devlist);
  63 LIST_HEAD(saa7164_devlist);
  64
  65 #define INT_SIZE 16
  66
  67 static void saa7164_work_cmdhandler(struct work_struct *w)
  68 {
  69         struct saa7164_dev *dev = container_of(w, struct saa7164_dev, workcmd);
  70
  71         /* Wake up any complete commands */
  72         saa7164_irq_dequeue(dev);
  73 }
  74
  75 static void saa7164_buffer_deliver(struct saa7164_buffer *buf)
  76 {
  77         struct saa7164_tsport *port = buf->port;
  78
  79         /* Feed the transport payload into the kernel demux */
  80         dvb_dmx_swfilter_packets(&port->dvb.demux, (u8 *)buf->cpu,
  81                 SAA7164_TS_NUMBER_OF_LINES);
  82
  83 }
  84
  85 static irqreturn_t saa7164_irq_ts(struct saa7164_tsport *port)
  86 {
  87         struct saa7164_dev *dev = port->dev;
  88         struct saa7164_buffer *buf;
  89         struct list_head *c, *n;
  90         int wp, i = 0, rp;
  91
  92         /* Find the current write point from the hardware */
  93         wp = saa7164_readl(port->bufcounter);
  94         if (wp > (port->hwcfg.buffercount - 1))
  95                 BUG();
  96
  97         /* Find the previous buffer to the current write point */
  98         if (wp == 0)
  99                 rp = 7;
 100         else
 101                 rp = wp - 1;
 102
 103         /* Lookup the WP in the buffer list */
 104         /* TODO: turn this into a worker thread */
 105         list_for_each_safe(c, n, &port->dmaqueue.list) {
 106                 buf = list_entry(c, struct saa7164_buffer, list);
 107                 if (i++ > port->hwcfg.buffercount)
 108                         BUG();
 109
 110                 if (buf->nr == rp) {
 111                         /* Found the buffer, deal with it */
 112                         dprintk(DBGLVL_IRQ, "%s() wp: %d processing: %d\n",
 113                                 __func__, wp, rp);
 114                         saa7164_buffer_deliver(buf);
 115                         break;
 116                 }
 117
 118         }
 119         return 0;
 120 }
 121
 122 /* Primary IRQ handler and dispatch mechanism */
 123 static irqreturn_t saa7164_irq(int irq, void *dev_id)
 124 {
 125         struct saa7164_dev *dev = dev_id;
 126         u32 intid, intstat[INT_SIZE/4];
 127         int i, handled = 0, bit;
 128
 129         if (dev == 0) {
 130                 printk(KERN_ERR "%s() No device specified\n", __func__);
 131                 handled = 0;
 132                 goto out;
 133         }
 134
 135         /* Check that the hardware is accessable. If the status bytes are
 136          * 0xFF then the device is not accessable, the the IRQ belongs
 137          * to another driver.
 138          * 4 x u32 interrupt registers.
 139          */
 140         for (i = 0; i < INT_SIZE/4; i++) {
 141
 142                 /* TODO: Convert into saa7164_readl() */
 143                 /* Read the 4 hardware interrupt registers */
 144                 intstat[i] = saa7164_readl(dev->int_status + (i * 4));
 145
 146                 if (intstat[i])
 147                         handled = 1;
 148         }
 149         if (handled == 0)
 150                 goto out;
 151
 152         /* For each of the HW interrupt registers */
 153         for (i = 0; i < INT_SIZE/4; i++) {
 154
 155                 if (intstat[i]) {
 156                         /* Each function of the board has it's own interruptid.
 157                          * Find the function that triggered then call
 158                          * it's handler.
 159                          */
 160                         for (bit = 0; bit < 32; bit++) {
 161
 162                                 if (((intstat[i] >> bit) & 0x00000001) == 0)
 163                                         continue;
 164
 165                                 /* Calculate the interrupt id (0x00 to 0x7f) */
 166
 167                                 intid = (i * 32) + bit;
 168                                 if (intid == dev->intfdesc.bInterruptId) {
 169                                         /* A response to an cmd/api call */
 170                                         schedule_work(&dev->workcmd);
 171                                 } else if (intid ==
 172                                         dev->ts1.hwcfg.interruptid) {
 173
 174                                         /* Transport path 1 */
 175                                         saa7164_irq_ts(&dev->ts1);
 176
 177                                 } else if (intid ==
 178                                         dev->ts2.hwcfg.interruptid) {
 179
 180                                         /* Transport path 2 */
 181                                         saa7164_irq_ts(&dev->ts2);
 182
 183                                 } else {
 184                                         /* Find the function */
 185                                         dprintk(DBGLVL_IRQ,
 186                                                 "%s() unhandled interrupt "
 187                                                 "reg 0x%x bit 0x%x "
 188                                                 "intid = 0x%x\n",
 189                                                 __func__, i, bit, intid);
 190                                 }
 191                         }
 192
 193                         /* Ack it */
 194                         saa7164_writel(dev->int_ack + (i * 4), intstat[i]);
 195
 196                 }
 197         }
 198 out:
 199         return IRQ_RETVAL(handled);
 200 }
 201
 202 void saa7164_getfirmwarestatus(struct saa7164_dev *dev)
 203 {
 204         struct saa7164_fw_status *s = &dev->fw_status;
 205
 206         dev->fw_status.status = saa7164_readl(SAA_DEVICE_SYSINIT_STATUS);
 207         dev->fw_status.mode = saa7164_readl(SAA_DEVICE_SYSINIT_MODE);
 208         dev->fw_status.spec = saa7164_readl(SAA_DEVICE_SYSINIT_SPEC);
 209         dev->fw_status.inst = saa7164_readl(SAA_DEVICE_SYSINIT_INST);
 210         dev->fw_status.cpuload = saa7164_readl(SAA_DEVICE_SYSINIT_CPULOAD);
 211         dev->fw_status.remainheap =
 212                 saa7164_readl(SAA_DEVICE_SYSINIT_REMAINHEAP);
 213
 214         dprintk(1, "Firmware status:\n");
 215         dprintk(1, " .status     = 0x%08x\n", s->status);
 216         dprintk(1, " .mode       = 0x%08x\n", s->mode);
 217         dprintk(1, " .spec       = 0x%08x\n", s->spec);
 218         dprintk(1, " .inst       = 0x%08x\n", s->inst);
 219         dprintk(1, " .cpuload    = 0x%08x\n", s->cpuload);
 220         dprintk(1, " .remainheap = 0x%08x\n", s->remainheap);
 221 }
 222
 223 u32 saa7164_getcurrentfirmwareversion(struct saa7164_dev *dev)
 224 {
 225         u32 reg;
 226
 227         reg = saa7164_readl(SAA_DEVICE_VERSION);
 228         dprintk(1, "Device running firmware version %d.%d.%d.%d (0x%x)\n",
 229                 (reg & 0x0000fc00) >> 10,
 230                 (reg & 0x000003e0) >> 5,
 231                 (reg & 0x0000001f),
 232                 (reg & 0xffff0000) >> 16,
 233                 reg);
 234
 235         return reg;
 236 }
 237
 238 /* TODO: Debugging func, remove */
 239 void saa7164_dumphex16(struct saa7164_dev *dev, u8 *buf, int len)
 240 {
 241         int i;
 242
 243         printk(KERN_INFO "--------------------> "
 244                 "00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f\n");
 245
 246         for (i = 0; i < len; i += 16)
 247                 printk(KERN_INFO "         [0x%08x] "
 248                         "%02x %02x %02x %02x %02x %02x %02x %02x "
 249                         "%02x %02x %02x %02x %02x %02x %02x %02x\n", i,
 250                 *(buf+i+0), *(buf+i+1), *(buf+i+2), *(buf+i+3),
 251                 *(buf+i+4), *(buf+i+5), *(buf+i+6), *(buf+i+7),
 252                 *(buf+i+8), *(buf+i+9), *(buf+i+10), *(buf+i+11),
 253                 *(buf+i+12), *(buf+i+13), *(buf+i+14), *(buf+i+15));
 254 }
 255
 256 /* TODO: Debugging func, remove */
 257 void saa7164_dumpregs(struct saa7164_dev *dev, u32 addr)
 258 {
 259         int i;
 260
 261         dprintk(1, "--------------------> "
 262                 "00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f\n");
 263
 264         for (i = 0; i < 0x100; i += 16)
 265                 dprintk(1, "region0[0x%08x] = "
 266                         "%02x %02x %02x %02x %02x %02x %02x %02x"
 267                         " %02x %02x %02x %02x %02x %02x %02x %02x\n", i,
 268                         (u8)saa7164_readb(addr + i + 0),
 269                         (u8)saa7164_readb(addr + i + 1),
 270                         (u8)saa7164_readb(addr + i + 2),
 271                         (u8)saa7164_readb(addr + i + 3),
 272                         (u8)saa7164_readb(addr + i + 4),
 273                         (u8)saa7164_readb(addr + i + 5),
 274                         (u8)saa7164_readb(addr + i + 6),
 275                         (u8)saa7164_readb(addr + i + 7),
 276                         (u8)saa7164_readb(addr + i + 8),
 277                         (u8)saa7164_readb(addr + i + 9),
 278                         (u8)saa7164_readb(addr + i + 10),
 279                         (u8)saa7164_readb(addr + i + 11),
 280                         (u8)saa7164_readb(addr + i + 12),
 281                         (u8)saa7164_readb(addr + i + 13),
 282                         (u8)saa7164_readb(addr + i + 14),
 283                         (u8)saa7164_readb(addr + i + 15)
 284                         );
 285 }
 286
 287 static void saa7164_dump_hwdesc(struct saa7164_dev *dev)
 288 {
 289         dprintk(1, "@0x%p hwdesc sizeof(tmComResHWDescr_t) = %d bytes\n",
 290                 &dev->hwdesc, (u32)sizeof(tmComResHWDescr_t));
 291
 292         dprintk(1, " .bLength = 0x%x\n", dev->hwdesc.bLength);
 293         dprintk(1, " .bDescriptorType = 0x%x\n", dev->hwdesc.bDescriptorType);
 294         dprintk(1, " .bDescriptorSubtype = 0x%x\n",
 295                 dev->hwdesc.bDescriptorSubtype);
 296
 297         dprintk(1, " .bcdSpecVersion = 0x%x\n", dev->hwdesc.bcdSpecVersion);
 298         dprintk(1, " .dwClockFrequency = 0x%x\n", dev->hwdesc.dwClockFrequency);
 299         dprintk(1, " .dwClockUpdateRes = 0x%x\n", dev->hwdesc.dwClockUpdateRes);
 300         dprintk(1, " .bCapabilities = 0x%x\n", dev->hwdesc.bCapabilities);
 301         dprintk(1, " .dwDeviceRegistersLocation = 0x%x\n",
 302                 dev->hwdesc.dwDeviceRegistersLocation);
 303
 304         dprintk(1, " .dwHostMemoryRegion = 0x%x\n",
 305                 dev->hwdesc.dwHostMemoryRegion);
 306
 307         dprintk(1, " .dwHostMemoryRegionSize = 0x%x\n",
 308                 dev->hwdesc.dwHostMemoryRegionSize);
 309
 310         dprintk(1, " .dwHostHibernatMemRegion = 0x%x\n",
 311                 dev->hwdesc.dwHostHibernatMemRegion);
 312
 313         dprintk(1, " .dwHostHibernatMemRegionSize = 0x%x\n",
 314                 dev->hwdesc.dwHostHibernatMemRegionSize);
 315 }
 316
 317 static void saa7164_dump_intfdesc(struct saa7164_dev *dev)
 318 {
 319         dprintk(1, "@0x%p intfdesc "
 320                 "sizeof(tmComResInterfaceDescr_t) = %d bytes\n",
 321                 &dev->intfdesc, (u32)sizeof(tmComResInterfaceDescr_t));
 322
 323         dprintk(1, " .bLength = 0x%x\n", dev->intfdesc.bLength);
 324         dprintk(1, " .bDescriptorType = 0x%x\n", dev->intfdesc.bDescriptorType);
 325         dprintk(1, " .bDescriptorSubtype = 0x%x\n",
 326                 dev->intfdesc.bDescriptorSubtype);
 327
 328         dprintk(1, " .bFlags = 0x%x\n", dev->intfdesc.bFlags);
 329         dprintk(1, " .bInterfaceType = 0x%x\n", dev->intfdesc.bInterfaceType);
 330         dprintk(1, " .bInterfaceId = 0x%x\n", dev->intfdesc.bInterfaceId);
 331         dprintk(1, " .bBaseInterface = 0x%x\n", dev->intfdesc.bBaseInterface);
 332         dprintk(1, " .bInterruptId = 0x%x\n", dev->intfdesc.bInterruptId);
 333         dprintk(1, " .bDebugInterruptId = 0x%x\n",
 334                 dev->intfdesc.bDebugInterruptId);
 335
 336         dprintk(1, " .BARLocation = 0x%x\n", dev->intfdesc.BARLocation);
 337 }
 338
 339 static void saa7164_dump_busdesc(struct saa7164_dev *dev)
 340 {
 341         dprintk(1, "@0x%p busdesc sizeof(tmComResBusDescr_t) = %d bytes\n",
 342                 &dev->busdesc, (u32)sizeof(tmComResBusDescr_t));
 343
 344         dprintk(1, " .CommandRing   = 0x%016Lx\n", dev->busdesc.CommandRing);
 345         dprintk(1, " .ResponseRing  = 0x%016Lx\n", dev->busdesc.ResponseRing);
 346         dprintk(1, " .CommandWrite  = 0x%x\n", dev->busdesc.CommandWrite);
 347         dprintk(1, " .CommandRead   = 0x%x\n", dev->busdesc.CommandRead);
 348         dprintk(1, " .ResponseWrite = 0x%x\n", dev->busdesc.ResponseWrite);
 349         dprintk(1, " .ResponseRead  = 0x%x\n", dev->busdesc.ResponseRead);
 350 }
 351
 352 /* Much of the hardware configuration and PCI registers are configured
 353  * dynamically depending on firmware. We have to cache some initial
 354  * structures then use these to locate other important structures
 355  * from PCI space.
 356  */
 357 static void saa7164_get_descriptors(struct saa7164_dev *dev)
 358 {
 359         memcpy(&dev->hwdesc, dev->bmmio, sizeof(tmComResHWDescr_t));
 360         memcpy(&dev->intfdesc, dev->bmmio + sizeof(tmComResHWDescr_t),
 361                 sizeof(tmComResInterfaceDescr_t));
 362         memcpy(&dev->busdesc, dev->bmmio + dev->intfdesc.BARLocation,
 363                 sizeof(tmComResBusDescr_t));
 364
 365         if (dev->hwdesc.bLength != sizeof(tmComResHWDescr_t)) {
 366                 printk(KERN_ERR "Structure tmComResHWDescr_t is mangled\n");
 367                 printk(KERN_ERR "Need %x got %d\n", dev->hwdesc.bLength,
 368                         (u32)sizeof(tmComResHWDescr_t));
 369         } else
 370                 saa7164_dump_hwdesc(dev);
 371
 372         if (dev->intfdesc.bLength != sizeof(tmComResInterfaceDescr_t)) {
 373                 printk(KERN_ERR "struct tmComResInterfaceDescr_t is mangled\n");
 374                 printk(KERN_ERR "Need %x got %d\n", dev->intfdesc.bLength,
 375                         (u32)sizeof(tmComResInterfaceDescr_t));
 376         } else
 377                 saa7164_dump_intfdesc(dev);
 378
 379         saa7164_dump_busdesc(dev);
 380 }
 381
 382 static int saa7164_pci_quirks(struct saa7164_dev *dev)
 383 {
 384         return 0;
 385 }
 386
 387 static int get_resources(struct saa7164_dev *dev)
 388 {
 389         if (request_mem_region(pci_resource_start(dev->pci, 0),
 390                 pci_resource_len(dev->pci, 0), dev->name)) {
 391
 392                 if (request_mem_region(pci_resource_start(dev->pci, 2),
 393                         pci_resource_len(dev->pci, 2), dev->name))
 394                         return 0;
 395         }
 396
 397         printk(KERN_ERR "%s: can't get MMIO memory @ 0x%llx or 0x%llx\n",
 398                 dev->name,
 399                 (u64)pci_resource_start(dev->pci, 0),
 400                 (u64)pci_resource_start(dev->pci, 2));
 401
 402         return -EBUSY;
 403 }
 404
 405 static int saa7164_dev_setup(struct saa7164_dev *dev)
 406 {
 407         int i;
 408
 409         mutex_init(&dev->lock);
 410         atomic_inc(&dev->refcount);
 411         dev->nr = saa7164_devcount++;
 412
 413         sprintf(dev->name, "saa7164[%d]", dev->nr);
 414
 415         mutex_lock(&devlist);
 416         list_add_tail(&dev->devlist, &saa7164_devlist);
 417         mutex_unlock(&devlist);
 418
 419         /* board config */
 420         dev->board = UNSET;
 421         if (card[dev->nr] < saa7164_bcount)
 422                 dev->board = card[dev->nr];
 423
 424         for (i = 0; UNSET == dev->board  &&  i < saa7164_idcount; i++)
 425                 if (dev->pci->subsystem_vendor == saa7164_subids[i].subvendor &&
 426                         dev->pci->subsystem_device ==
 427                                 saa7164_subids[i].subdevice)
 428                                 dev->board = saa7164_subids[i].card;
 429
 430         if (UNSET == dev->board) {
 431                 dev->board = SAA7164_BOARD_UNKNOWN;
 432                 saa7164_card_list(dev);
 433         }
 434
 435         dev->pci_bus  = dev->pci->bus->number;
 436         dev->pci_slot = PCI_SLOT(dev->pci->devfn);
 437
 438         /* I2C Defaults / setup */
 439         dev->i2c_bus[0].dev = dev;
 440         dev->i2c_bus[0].nr = 0;
 441         dev->i2c_bus[1].dev = dev;
 442         dev->i2c_bus[1].nr = 1;
 443         dev->i2c_bus[2].dev = dev;
 444         dev->i2c_bus[2].nr = 2;
 445
 446         /* Transport port A Defaults / setup */
 447         dev->ts1.dev = dev;
 448         dev->ts1.nr = 0;
 449         mutex_init(&dev->ts1.dvb.lock);
 450         INIT_LIST_HEAD(&dev->ts1.dmaqueue.list);
 451         INIT_LIST_HEAD(&dev->ts1.dummy_dmaqueue.list);
 452         mutex_init(&dev->ts1.dmaqueue_lock);
 453         mutex_init(&dev->ts1.dummy_dmaqueue_lock);
 454
 455         /* Transport port B Defaults / setup */
 456         dev->ts2.dev = dev;
 457         dev->ts2.nr = 1;
 458         mutex_init(&dev->ts2.dvb.lock);
 459         INIT_LIST_HEAD(&dev->ts2.dmaqueue.list);
 460         INIT_LIST_HEAD(&dev->ts2.dummy_dmaqueue.list);
 461         mutex_init(&dev->ts2.dmaqueue_lock);
 462         mutex_init(&dev->ts2.dummy_dmaqueue_lock);
 463
 464         if (get_resources(dev) < 0) {
 465                 printk(KERN_ERR "CORE %s No more PCIe resources for "
 466                        "subsystem: %04x:%04x\n",
 467                        dev->name, dev->pci->subsystem_vendor,
 468                        dev->pci->subsystem_device);
 469
 470                 saa7164_devcount--;
 471                 return -ENODEV;
 472         }
 473
 474         /* PCI/e allocations */
 475         dev->lmmio = ioremap(pci_resource_start(dev->pci, 0),
 476                              pci_resource_len(dev->pci, 0));
 477
 478         dev->lmmio2 = ioremap(pci_resource_start(dev->pci, 2),
 479                              pci_resource_len(dev->pci, 2));
 480
 481         dev->bmmio = (u8 __iomem *)dev->lmmio;
 482         dev->bmmio2 = (u8 __iomem *)dev->lmmio2;
 483
 484         /* Inerrupt and ack register locations offset of bmmio */
 485         dev->int_status = 0x183000 + 0xf80;
 486         dev->int_ack = 0x183000 + 0xf90;
 487
 488         printk(KERN_INFO
 489                 "CORE %s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
 490                dev->name, dev->pci->subsystem_vendor,
 491                dev->pci->subsystem_device, saa7164_boards[dev->board].name,
 492                dev->board, card[dev->nr] == dev->board ?
 493                "insmod option" : "autodetected");
 494
 495         saa7164_pci_quirks(dev);
 496
 497         return 0;
 498 }
 499
 500 static void saa7164_dev_unregister(struct saa7164_dev *dev)
 501 {
 502         dprintk(1, "%s()\n", __func__);
 503
 504         release_mem_region(pci_resource_start(dev->pci, 0),
 505                 pci_resource_len(dev->pci, 0));
 506
 507         release_mem_region(pci_resource_start(dev->pci, 2),
 508                 pci_resource_len(dev->pci, 2));
 509
 510         if (!atomic_dec_and_test(&dev->refcount))
 511                 return;
 512
 513         iounmap(dev->lmmio);
 514         iounmap(dev->lmmio2);
 515
 516         return;
 517 }
 518
 519 static int __devinit saa7164_initdev(struct pci_dev *pci_dev,
 520                                      const struct pci_device_id *pci_id)
 521 {
 522         struct saa7164_dev *dev;
 523         int err, i;
 524         u32 version;
 525
 526         dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 527         if (NULL == dev)
 528                 return -ENOMEM;
 529
 530         /* pci init */
 531         dev->pci = pci_dev;
 532         if (pci_enable_device(pci_dev)) {
 533                 err = -EIO;
 534                 goto fail_free;
 535         }
 536
 537         if (saa7164_dev_setup(dev) < 0) {
 538                 err = -EINVAL;
 539                 goto fail_free;
 540         }
 541
 542         /* print pci info */
 543         pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &dev->pci_rev);
 544         pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
 545         printk(KERN_INFO "%s/0: found at %s, rev: %d, irq: %d, "
 546                "latency: %d, mmio: 0x%llx\n", dev->name,
 547                pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
 548                dev->pci_lat,
 549                 (unsigned long long)pci_resource_start(pci_dev, 0));
 550
 551         pci_set_master(pci_dev);
 552         /* TODO */
 553         if (!pci_dma_supported(pci_dev, 0xffffffff)) {
 554                 printk("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name);
 555                 err = -EIO;
 556                 goto fail_irq;
 557         }
 558
 559         err = request_irq(pci_dev->irq, saa7164_irq,
 560                 IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
 561         if (err < 0) {
 562                 printk(KERN_ERR "%s: can't get IRQ %d\n", dev->name,
 563                         pci_dev->irq);
 564                 err = -EIO;
 565                 goto fail_irq;
 566         }
 567
 568         pci_set_drvdata(pci_dev, dev);
 569
 570         /* Init the internal command list */
 571         for (i = 0; i < SAA_CMD_MAX_MSG_UNITS; i++) {
 572                 dev->cmds[i].seqno = i;
 573                 dev->cmds[i].inuse = 0;
 574                 mutex_init(&dev->cmds[i].lock);
 575                 init_waitqueue_head(&dev->cmds[i].wait);
 576         }
 577
 578         /* We need a deferred interrupt handler for cmd handling */
 579         INIT_WORK(&dev->workcmd, saa7164_work_cmdhandler);
 580
 581         /* Only load the firmware if we know the board */
 582         if (dev->board != SAA7164_BOARD_UNKNOWN) {
 583
 584                 err = saa7164_downloadfirmware(dev);
 585                 if (err < 0) {
 586                         printk(KERN_ERR
 587                                 "Failed to boot firmware, no features "
 588                                 "registered\n");
 589                         goto fail_fw;
 590                 }
 591
 592                 saa7164_get_descriptors(dev);
 593                 saa7164_dumpregs(dev, 0);
 594                 saa7164_getcurrentfirmwareversion(dev);
 595                 saa7164_getfirmwarestatus(dev);
 596                 err = saa7164_bus_setup(dev);
 597                 if (err < 0)
 598                         printk(KERN_ERR
 599                                 "Failed to setup the bus, will continue\n");
 600                 saa7164_bus_dump(dev);
 601
 602                 /* Ping the running firmware via the command bus and get the
 603                  * firmware version, this checks the bus is running OK.
 604                  */
 605                 version = 0;
 606                 if (saa7164_api_get_fw_version(dev, &version) == SAA_OK)
 607                         dprintk(1, "Bus is operating correctly using "
 608                                 "version %d.%d.%d.%d (0x%x)\n",
 609                                 (version & 0x0000fc00) >> 10,
 610                                 (version & 0x000003e0) >> 5,
 611                                 (version & 0x0000001f),
 612                                 (version & 0xffff0000) >> 16,
 613                                 version);
 614                 else
 615                         printk(KERN_ERR
 616                                 "Failed to communicate with the firmware\n");
 617
 618                 /* Bring up the I2C buses */
 619                 saa7164_i2c_register(&dev->i2c_bus[0]);
 620                 saa7164_i2c_register(&dev->i2c_bus[1]);
 621                 saa7164_i2c_register(&dev->i2c_bus[2]);
 622                 saa7164_gpio_setup(dev);
 623                 saa7164_card_setup(dev);
 624
 625
 626                 /* Parse the dynamic device configuration, find various
 627                  * media endpoints (MPEG, WMV, PS, TS) and cache their
 628                  * configuration details into the driver, so we can
 629                  * reference them later during simething_register() func,
 630                  * interrupt handlers, deferred work handlers etc.
 631                  */
 632                 saa7164_api_enum_subdevs(dev);
 633
 634                 /* Begin to create the video sub-systems and register funcs */
 635                 if (saa7164_boards[dev->board].porta == SAA7164_MPEG_DVB) {
 636                         if (saa7164_dvb_register(&dev->ts1) < 0) {
 637                                 printk(KERN_ERR "%s() Failed to register "
 638                                         "dvb adapters on porta\n",
 639                                         __func__);
 640                         }
 641                 }
 642
 643                 if (saa7164_boards[dev->board].portb == SAA7164_MPEG_DVB) {
 644                         if (saa7164_dvb_register(&dev->ts2) < 0) {
 645                                 printk(KERN_ERR"%s() Failed to register "
 646                                         "dvb adapters on portb\n",
 647                                         __func__);
 648                         }
 649                 }
 650
 651         } /* != BOARD_UNKNOWN */
 652         else
 653                 printk(KERN_ERR "%s() Unsupported board detected, "
 654                         "registering without firmware\n", __func__);
 655
 656         dprintk(1, "%s() parameter debug = %d\n", __func__, saa_debug);
 657         dprintk(1, "%s() parameter waitsecs = %d\n", __func__, waitsecs);
 658
 659 fail_fw:
 660         return 0;
 661
 662 fail_irq:
 663         saa7164_dev_unregister(dev);
 664 fail_free:
 665         kfree(dev);
 666         return err;
 667 }
 668
 669 static void saa7164_shutdown(struct saa7164_dev *dev)
 670 {
 671         dprintk(1, "%s()\n", __func__);
 672 }
 673
 674 static void __devexit saa7164_finidev(struct pci_dev *pci_dev)
 675 {
 676         struct saa7164_dev *dev = pci_get_drvdata(pci_dev);
 677
 678         saa7164_shutdown(dev);
 679
 680         if (saa7164_boards[dev->board].porta == SAA7164_MPEG_DVB)
 681                 saa7164_dvb_unregister(&dev->ts1);
 682
 683         if (saa7164_boards[dev->board].portb == SAA7164_MPEG_DVB)
 684                 saa7164_dvb_unregister(&dev->ts2);
 685
 686         saa7164_i2c_unregister(&dev->i2c_bus[0]);
 687         saa7164_i2c_unregister(&dev->i2c_bus[1]);
 688         saa7164_i2c_unregister(&dev->i2c_bus[2]);
 689
 690         pci_disable_device(pci_dev);
 691
 692         /* unregister stuff */
 693         free_irq(pci_dev->irq, dev);
 694         pci_set_drvdata(pci_dev, NULL);
 695
 696         mutex_lock(&devlist);
 697         list_del(&dev->devlist);
 698         mutex_unlock(&devlist);
 699
 700         saa7164_dev_unregister(dev);
 701         kfree(dev);
 702 }
 703
 704 static struct pci_device_id saa7164_pci_tbl[] = {
 705         {
 706                 /* SAA7164 */
 707                 .vendor       = 0x1131,
 708                 .device       = 0x7164,
 709                 .subvendor    = PCI_ANY_ID,
 710                 .subdevice    = PCI_ANY_ID,
 711         }, {
 712                 /* --- end of list --- */
 713         }
 714 };
 715 MODULE_DEVICE_TABLE(pci, saa7164_pci_tbl);
 716
 717 static struct pci_driver saa7164_pci_driver = {
 718         .name     = "saa7164",
 719         .id_table = saa7164_pci_tbl,
 720         .probe    = saa7164_initdev,
 721         .remove   = __devexit_p(saa7164_finidev),
 722         /* TODO */
 723         .suspend  = NULL,
 724         .resume   = NULL,
 725 };
 726
 727 static int saa7164_init(void)
 728 {
 729         printk(KERN_INFO "saa7164 driver loaded\n");
 730         return pci_register_driver(&saa7164_pci_driver);
 731 }
 732
 733 static void saa7164_fini(void)
 734 {
 735         pci_unregister_driver(&saa7164_pci_driver);
 736 }
 737
 738 module_init(saa7164_init);
 739 module_exit(saa7164_fini);
 740