drivers/media/pci/netup_unidvb/netup_unidvb_core.c

   1 /*
   2  * netup_unidvb_core.c
   3  *
   4  * Main module for NetUP Universal Dual DVB-CI
   5  *
   6  * Copyright (C) 2014 NetUP Inc.
   7  * Copyright (C) 2014 Sergey Kozlov <serjk@netup.ru>
   8  * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  */
  20
  21 #include <linux/init.h>
  22 #include <linux/module.h>
  23 #include <linux/moduleparam.h>
  24 #include <linux/kmod.h>
  25 #include <linux/kernel.h>
  26 #include <linux/slab.h>
  27 #include <linux/interrupt.h>
  28 #include <linux/delay.h>
  29 #include <linux/list.h>
  30 #include <media/videobuf2-v4l2.h>
  31 #include <media/videobuf2-vmalloc.h>
  32
  33 #include "netup_unidvb.h"
  34 #include "cxd2841er.h"
  35 #include "horus3a.h"
  36 #include "ascot2e.h"
  37 #include "helene.h"
  38 #include "lnbh25.h"
  39
  40 static int spi_enable;
  41 module_param(spi_enable, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
  42
  43 MODULE_DESCRIPTION("Driver for NetUP Dual Universal DVB CI PCIe card");
  44 MODULE_AUTHOR("info@netup.ru");
  45 MODULE_VERSION(NETUP_UNIDVB_VERSION);
  46 MODULE_LICENSE("GPL");
  47
  48 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  49
  50 /* Avalon-MM PCI-E registers */
  51 #define AVL_PCIE_IENR           0x50
  52 #define AVL_PCIE_ISR            0x40
  53 #define AVL_IRQ_ENABLE          0x80
  54 #define AVL_IRQ_ASSERTED        0x80
  55 /* GPIO registers */
  56 #define GPIO_REG_IO             0x4880
  57 #define GPIO_REG_IO_TOGGLE      0x4882
  58 #define GPIO_REG_IO_SET         0x4884
  59 #define GPIO_REG_IO_CLEAR       0x4886
  60 /* GPIO bits */
  61 #define GPIO_FEA_RESET          (1 << 0)
  62 #define GPIO_FEB_RESET          (1 << 1)
  63 #define GPIO_RFA_CTL            (1 << 2)
  64 #define GPIO_RFB_CTL            (1 << 3)
  65 #define GPIO_FEA_TU_RESET       (1 << 4)
  66 #define GPIO_FEB_TU_RESET       (1 << 5)
  67 /* DMA base address */
  68 #define NETUP_DMA0_ADDR         0x4900
  69 #define NETUP_DMA1_ADDR         0x4940
  70 /* 8 DMA blocks * 128 packets * 188 bytes*/
  71 #define NETUP_DMA_BLOCKS_COUNT  8
  72 #define NETUP_DMA_PACKETS_COUNT 128
  73 /* DMA status bits */
  74 #define BIT_DMA_RUN             1
  75 #define BIT_DMA_ERROR           2
  76 #define BIT_DMA_IRQ             0x200
  77
  78 /**
  79  * struct netup_dma_regs - the map of DMA module registers
  80  * @ctrlstat_set:       Control register, write to set control bits
  81  * @ctrlstat_clear:     Control register, write to clear control bits
  82  * @start_addr_lo:      DMA ring buffer start address, lower part
  83  * @start_addr_hi:      DMA ring buffer start address, higher part
  84  * @size:               DMA ring buffer size register
  85                         Bits [0-7]:     DMA packet size, 188 bytes
  86                         Bits [16-23]:   packets count in block, 128 packets
  87                         Bits [24-31]:   blocks count, 8 blocks
  88  * @timeout:            DMA timeout in units of 8ns
  89                         For example, value of 375000000 equals to 3 sec
  90  * @curr_addr_lo:       Current ring buffer head address, lower part
  91  * @curr_addr_hi:       Current ring buffer head address, higher part
  92  * @stat_pkt_received:  Statistic register, not tested
  93  * @stat_pkt_accepted:  Statistic register, not tested
  94  * @stat_pkt_overruns:  Statistic register, not tested
  95  * @stat_pkt_underruns: Statistic register, not tested
  96  * @stat_fifo_overruns: Statistic register, not tested
  97  */
  98 struct netup_dma_regs {
  99         __le32  ctrlstat_set;
 100         __le32  ctrlstat_clear;
 101         __le32  start_addr_lo;
 102         __le32  start_addr_hi;
 103         __le32  size;
 104         __le32  timeout;
 105         __le32  curr_addr_lo;
 106         __le32  curr_addr_hi;
 107         __le32  stat_pkt_received;
 108         __le32  stat_pkt_accepted;
 109         __le32  stat_pkt_overruns;
 110         __le32  stat_pkt_underruns;
 111         __le32  stat_fifo_overruns;
 112 } __packed __aligned(1);
 113
 114 struct netup_unidvb_buffer {
 115         struct vb2_v4l2_buffer vb;
 116         struct list_head        list;
 117         u32                     size;
 118 };
 119
 120 static int netup_unidvb_tuner_ctrl(void *priv, int is_dvb_tc);
 121 static void netup_unidvb_queue_cleanup(struct netup_dma *dma);
 122
 123 static struct cxd2841er_config demod_config = {
 124         .i2c_addr = 0xc8,
 125         .xtal = SONY_XTAL_24000
 126 };
 127
 128 static struct horus3a_config horus3a_conf = {
 129         .i2c_address = 0xc0,
 130         .xtal_freq_mhz = 16,
 131         .set_tuner_callback = netup_unidvb_tuner_ctrl
 132 };
 133
 134 static struct ascot2e_config ascot2e_conf = {
 135         .i2c_address = 0xc2,
 136         .set_tuner_callback = netup_unidvb_tuner_ctrl
 137 };
 138
 139 static struct helene_config helene_conf = {
 140         .i2c_address = 0xc0,
 141         .xtal = SONY_HELENE_XTAL_24000,
 142         .set_tuner_callback = netup_unidvb_tuner_ctrl
 143 };
 144
 145 static struct lnbh25_config lnbh25_conf = {
 146         .i2c_address = 0x10,
 147         .data2_config = LNBH25_TEN | LNBH25_EXTM
 148 };
 149
 150 static int netup_unidvb_tuner_ctrl(void *priv, int is_dvb_tc)
 151 {
 152         u8 reg, mask;
 153         struct netup_dma *dma = priv;
 154         struct netup_unidvb_dev *ndev;
 155
 156         if (!priv)
 157                 return -EINVAL;
 158         ndev = dma->ndev;
 159         dev_dbg(&ndev->pci_dev->dev, "%s(): num %d is_dvb_tc %d\n",
 160                 __func__, dma->num, is_dvb_tc);
 161         reg = readb(ndev->bmmio0 + GPIO_REG_IO);
 162         mask = (dma->num == 0) ? GPIO_RFA_CTL : GPIO_RFB_CTL;
 163
 164         /* inverted tuner control in hw rev. 1.4 */
 165         if (ndev->rev == NETUP_HW_REV_1_4)
 166                 is_dvb_tc = !is_dvb_tc;
 167
 168         if (!is_dvb_tc)
 169                 reg |= mask;
 170         else
 171                 reg &= ~mask;
 172         writeb(reg, ndev->bmmio0 + GPIO_REG_IO);
 173         return 0;
 174 }
 175
 176 static void netup_unidvb_dev_enable(struct netup_unidvb_dev *ndev)
 177 {
 178         u16 gpio_reg;
 179
 180         /* enable PCI-E interrupts */
 181         writel(AVL_IRQ_ENABLE, ndev->bmmio0 + AVL_PCIE_IENR);
 182         /* unreset frontends bits[0:1] */
 183         writeb(0x00, ndev->bmmio0 + GPIO_REG_IO);
 184         msleep(100);
 185         gpio_reg =
 186                 GPIO_FEA_RESET | GPIO_FEB_RESET |
 187                 GPIO_FEA_TU_RESET | GPIO_FEB_TU_RESET |
 188                 GPIO_RFA_CTL | GPIO_RFB_CTL;
 189         writeb(gpio_reg, ndev->bmmio0 + GPIO_REG_IO);
 190         dev_dbg(&ndev->pci_dev->dev,
 191                 "%s(): AVL_PCIE_IENR 0x%x GPIO_REG_IO 0x%x\n",
 192                 __func__, readl(ndev->bmmio0 + AVL_PCIE_IENR),
 193                 (int)readb(ndev->bmmio0 + GPIO_REG_IO));
 194
 195 }
 196
 197 static void netup_unidvb_dma_enable(struct netup_dma *dma, int enable)
 198 {
 199         u32 irq_mask = (dma->num == 0 ?
 200                 NETUP_UNIDVB_IRQ_DMA1 : NETUP_UNIDVB_IRQ_DMA2);
 201
 202         dev_dbg(&dma->ndev->pci_dev->dev,
 203                 "%s(): DMA%d enable %d\n", __func__, dma->num, enable);
 204         if (enable) {
 205                 writel(BIT_DMA_RUN, &dma->regs->ctrlstat_set);
 206                 writew(irq_mask, dma->ndev->bmmio0 + REG_IMASK_SET);
 207         } else {
 208                 writel(BIT_DMA_RUN, &dma->regs->ctrlstat_clear);
 209                 writew(irq_mask, dma->ndev->bmmio0 + REG_IMASK_CLEAR);
 210         }
 211 }
 212
 213 static irqreturn_t netup_dma_interrupt(struct netup_dma *dma)
 214 {
 215         u64 addr_curr;
 216         u32 size;
 217         unsigned long flags;
 218         struct device *dev = &dma->ndev->pci_dev->dev;
 219
 220         spin_lock_irqsave(&dma->lock, flags);
 221         addr_curr = ((u64)readl(&dma->regs->curr_addr_hi) << 32) |
 222                 (u64)readl(&dma->regs->curr_addr_lo) | dma->high_addr;
 223         /* clear IRQ */
 224         writel(BIT_DMA_IRQ, &dma->regs->ctrlstat_clear);
 225         /* sanity check */
 226         if (addr_curr < dma->addr_phys ||
 227                         addr_curr > dma->addr_phys +  dma->ring_buffer_size) {
 228                 if (addr_curr != 0) {
 229                         dev_err(dev,
 230                                 "%s(): addr 0x%llx not from 0x%llx:0x%llx\n",
 231                                 __func__, addr_curr, (u64)dma->addr_phys,
 232                                 (u64)(dma->addr_phys + dma->ring_buffer_size));
 233                 }
 234                 goto irq_handled;
 235         }
 236         size = (addr_curr >= dma->addr_last) ?
 237                 (u32)(addr_curr - dma->addr_last) :
 238                 (u32)(dma->ring_buffer_size - (dma->addr_last - addr_curr));
 239         if (dma->data_size != 0) {
 240                 printk_ratelimited("%s(): lost interrupt, data size %d\n",
 241                         __func__, dma->data_size);
 242                 dma->data_size += size;
 243         }
 244         if (dma->data_size == 0 || dma->data_size > dma->ring_buffer_size) {
 245                 dma->data_size = size;
 246                 dma->data_offset = (u32)(dma->addr_last - dma->addr_phys);
 247         }
 248         dma->addr_last = addr_curr;
 249         queue_work(dma->ndev->wq, &dma->work);
 250 irq_handled:
 251         spin_unlock_irqrestore(&dma->lock, flags);
 252         return IRQ_HANDLED;
 253 }
 254
 255 static irqreturn_t netup_unidvb_isr(int irq, void *dev_id)
 256 {
 257         struct pci_dev *pci_dev = (struct pci_dev *)dev_id;
 258         struct netup_unidvb_dev *ndev = pci_get_drvdata(pci_dev);
 259         u32 reg40, reg_isr;
 260         irqreturn_t iret = IRQ_NONE;
 261
 262         /* disable interrupts */
 263         writel(0, ndev->bmmio0 + AVL_PCIE_IENR);
 264         /* check IRQ source */
 265         reg40 = readl(ndev->bmmio0 + AVL_PCIE_ISR);
 266         if ((reg40 & AVL_IRQ_ASSERTED) != 0) {
 267                 /* IRQ is being signaled */
 268                 reg_isr = readw(ndev->bmmio0 + REG_ISR);
 269                 if (reg_isr & NETUP_UNIDVB_IRQ_I2C0) {
 270                         iret = netup_i2c_interrupt(&ndev->i2c[0]);
 271                 } else if (reg_isr & NETUP_UNIDVB_IRQ_I2C1) {
 272                         iret = netup_i2c_interrupt(&ndev->i2c[1]);
 273                 } else if (reg_isr & NETUP_UNIDVB_IRQ_SPI) {
 274                         iret = netup_spi_interrupt(ndev->spi);
 275                 } else if (reg_isr & NETUP_UNIDVB_IRQ_DMA1) {
 276                         iret = netup_dma_interrupt(&ndev->dma[0]);
 277                 } else if (reg_isr & NETUP_UNIDVB_IRQ_DMA2) {
 278                         iret = netup_dma_interrupt(&ndev->dma[1]);
 279                 } else if (reg_isr & NETUP_UNIDVB_IRQ_CI) {
 280                         iret = netup_ci_interrupt(ndev);
 281                 } else {
 282                         dev_err(&pci_dev->dev,
 283                                 "%s(): unknown interrupt 0x%x\n",
 284                                 __func__, reg_isr);
 285                 }
 286         }
 287         /* re-enable interrupts */
 288         writel(AVL_IRQ_ENABLE, ndev->bmmio0 + AVL_PCIE_IENR);
 289         return iret;
 290 }
 291
 292 static int netup_unidvb_queue_setup(struct vb2_queue *vq,
 293                                     unsigned int *nbuffers,
 294                                     unsigned int *nplanes,
 295                                     unsigned int sizes[],
 296                                     struct device *alloc_devs[])
 297 {
 298         struct netup_dma *dma = vb2_get_drv_priv(vq);
 299
 300         dev_dbg(&dma->ndev->pci_dev->dev, "%s()\n", __func__);
 301
 302         *nplanes = 1;
 303         if (vq->num_buffers + *nbuffers < VIDEO_MAX_FRAME)
 304                 *nbuffers = VIDEO_MAX_FRAME - vq->num_buffers;
 305         sizes[0] = PAGE_ALIGN(NETUP_DMA_PACKETS_COUNT * 188);
 306         dev_dbg(&dma->ndev->pci_dev->dev, "%s() nbuffers=%d sizes[0]=%d\n",
 307                 __func__, *nbuffers, sizes[0]);
 308         return 0;
 309 }
 310
 311 static int netup_unidvb_buf_prepare(struct vb2_buffer *vb)
 312 {
 313         struct netup_dma *dma = vb2_get_drv_priv(vb->vb2_queue);
 314         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 315         struct netup_unidvb_buffer *buf = container_of(vbuf,
 316                                 struct netup_unidvb_buffer, vb);
 317
 318         dev_dbg(&dma->ndev->pci_dev->dev, "%s(): buf 0x%p\n", __func__, buf);
 319         buf->size = 0;
 320         return 0;
 321 }
 322
 323 static void netup_unidvb_buf_queue(struct vb2_buffer *vb)
 324 {
 325         unsigned long flags;
 326         struct netup_dma *dma = vb2_get_drv_priv(vb->vb2_queue);
 327         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 328         struct netup_unidvb_buffer *buf = container_of(vbuf,
 329                                 struct netup_unidvb_buffer, vb);
 330
 331         dev_dbg(&dma->ndev->pci_dev->dev, "%s(): %p\n", __func__, buf);
 332         spin_lock_irqsave(&dma->lock, flags);
 333         list_add_tail(&buf->list, &dma->free_buffers);
 334         spin_unlock_irqrestore(&dma->lock, flags);
 335         mod_timer(&dma->timeout, jiffies + msecs_to_jiffies(1000));
 336 }
 337
 338 static int netup_unidvb_start_streaming(struct vb2_queue *q, unsigned int count)
 339 {
 340         struct netup_dma *dma = vb2_get_drv_priv(q);
 341
 342         dev_dbg(&dma->ndev->pci_dev->dev, "%s()\n", __func__);
 343         netup_unidvb_dma_enable(dma, 1);
 344         return 0;
 345 }
 346
 347 static void netup_unidvb_stop_streaming(struct vb2_queue *q)
 348 {
 349         struct netup_dma *dma = vb2_get_drv_priv(q);
 350
 351         dev_dbg(&dma->ndev->pci_dev->dev, "%s()\n", __func__);
 352         netup_unidvb_dma_enable(dma, 0);
 353         netup_unidvb_queue_cleanup(dma);
 354 }
 355
 356 static const struct vb2_ops dvb_qops = {
 357         .queue_setup            = netup_unidvb_queue_setup,
 358         .buf_prepare            = netup_unidvb_buf_prepare,
 359         .buf_queue              = netup_unidvb_buf_queue,
 360         .start_streaming        = netup_unidvb_start_streaming,
 361         .stop_streaming         = netup_unidvb_stop_streaming,
 362 };
 363
 364 static int netup_unidvb_queue_init(struct netup_dma *dma,
 365                                    struct vb2_queue *vb_queue)
 366 {
 367         int res;
 368
 369         /* Init videobuf2 queue structure */
 370         vb_queue->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 371         vb_queue->io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
 372         vb_queue->drv_priv = dma;
 373         vb_queue->buf_struct_size = sizeof(struct netup_unidvb_buffer);
 374         vb_queue->ops = &dvb_qops;
 375         vb_queue->mem_ops = &vb2_vmalloc_memops;
 376         vb_queue->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
 377         res = vb2_queue_init(vb_queue);
 378         if (res != 0) {
 379                 dev_err(&dma->ndev->pci_dev->dev,
 380                         "%s(): vb2_queue_init failed (%d)\n", __func__, res);
 381         }
 382         return res;
 383 }
 384
 385 static int netup_unidvb_dvb_init(struct netup_unidvb_dev *ndev,
 386                                  int num)
 387 {
 388         int fe_count = 2;
 389         int i = 0;
 390         struct vb2_dvb_frontend *fes[2];
 391         u8 fe_name[32];
 392
 393         if (ndev->rev == NETUP_HW_REV_1_3)
 394                 demod_config.xtal = SONY_XTAL_20500;
 395         else
 396                 demod_config.xtal = SONY_XTAL_24000;
 397
 398         if (num < 0 || num > 1) {
 399                 dev_dbg(&ndev->pci_dev->dev,
 400                         "%s(): unable to init DVB bus %d\n", __func__, num);
 401                 return -ENODEV;
 402         }
 403         mutex_init(&ndev->frontends[num].lock);
 404         INIT_LIST_HEAD(&ndev->frontends[num].felist);
 405
 406         for (i = 0; i < fe_count; i++) {
 407                 if (vb2_dvb_alloc_frontend(&ndev->frontends[num], i+1)
 408                                 == NULL) {
 409                         dev_err(&ndev->pci_dev->dev,
 410                                         "%s(): unable to allocate vb2_dvb_frontend\n",
 411                                         __func__);
 412                         return -ENOMEM;
 413                 }
 414         }
 415
 416         for (i = 0; i < fe_count; i++) {
 417                 fes[i] = vb2_dvb_get_frontend(&ndev->frontends[num], i+1);
 418                 if (fes[i] == NULL) {
 419                         dev_err(&ndev->pci_dev->dev,
 420                                 "%s(): frontends has not been allocated\n",
 421                                 __func__);
 422                         return -EINVAL;
 423                 }
 424         }
 425
 426         for (i = 0; i < fe_count; i++) {
 427                 netup_unidvb_queue_init(&ndev->dma[num], &fes[i]->dvb.dvbq);
 428                 snprintf(fe_name, sizeof(fe_name), "netup_fe%d", i);
 429                 fes[i]->dvb.name = fe_name;
 430         }
 431
 432         fes[0]->dvb.frontend = dvb_attach(cxd2841er_attach_s,
 433                 &demod_config, &ndev->i2c[num].adap);
 434         if (fes[0]->dvb.frontend == NULL) {
 435                 dev_dbg(&ndev->pci_dev->dev,
 436                         "%s(): unable to attach DVB-S/S2 frontend\n",
 437                         __func__);
 438                 goto frontend_detach;
 439         }
 440
 441         if (ndev->rev == NETUP_HW_REV_1_3) {
 442                 horus3a_conf.set_tuner_priv = &ndev->dma[num];
 443                 if (!dvb_attach(horus3a_attach, fes[0]->dvb.frontend,
 444                                         &horus3a_conf, &ndev->i2c[num].adap)) {
 445                         dev_dbg(&ndev->pci_dev->dev,
 446                                         "%s(): unable to attach HORUS3A DVB-S/S2 tuner frontend\n",
 447                                         __func__);
 448                         goto frontend_detach;
 449                 }
 450         } else {
 451                 helene_conf.set_tuner_priv = &ndev->dma[num];
 452                 if (!dvb_attach(helene_attach_s, fes[0]->dvb.frontend,
 453                                         &helene_conf, &ndev->i2c[num].adap)) {
 454                         dev_err(&ndev->pci_dev->dev,
 455                                         "%s(): unable to attach HELENE DVB-S/S2 tuner frontend\n",
 456                                         __func__);
 457                         goto frontend_detach;
 458                 }
 459         }
 460
 461         if (!dvb_attach(lnbh25_attach, fes[0]->dvb.frontend,
 462                         &lnbh25_conf, &ndev->i2c[num].adap)) {
 463                 dev_dbg(&ndev->pci_dev->dev,
 464                         "%s(): unable to attach SEC frontend\n", __func__);
 465                 goto frontend_detach;
 466         }
 467
 468         /* DVB-T/T2 frontend */
 469         fes[1]->dvb.frontend = dvb_attach(cxd2841er_attach_t_c,
 470                 &demod_config, &ndev->i2c[num].adap);
 471         if (fes[1]->dvb.frontend == NULL) {
 472                 dev_dbg(&ndev->pci_dev->dev,
 473                         "%s(): unable to attach Ter frontend\n", __func__);
 474                 goto frontend_detach;
 475         }
 476         fes[1]->dvb.frontend->id = 1;
 477         if (ndev->rev == NETUP_HW_REV_1_3) {
 478                 ascot2e_conf.set_tuner_priv = &ndev->dma[num];
 479                 if (!dvb_attach(ascot2e_attach, fes[1]->dvb.frontend,
 480                                         &ascot2e_conf, &ndev->i2c[num].adap)) {
 481                         dev_dbg(&ndev->pci_dev->dev,
 482                                         "%s(): unable to attach Ter tuner frontend\n",
 483                                         __func__);
 484                         goto frontend_detach;
 485                 }
 486         } else {
 487                 helene_conf.set_tuner_priv = &ndev->dma[num];
 488                 if (!dvb_attach(helene_attach, fes[1]->dvb.frontend,
 489                                         &helene_conf, &ndev->i2c[num].adap)) {
 490                         dev_err(&ndev->pci_dev->dev,
 491                                         "%s(): unable to attach HELENE Ter tuner frontend\n",
 492                                         __func__);
 493                         goto frontend_detach;
 494                 }
 495         }
 496
 497         if (vb2_dvb_register_bus(&ndev->frontends[num],
 498                                  THIS_MODULE, NULL,
 499                                  &ndev->pci_dev->dev, NULL, adapter_nr, 1)) {
 500                 dev_dbg(&ndev->pci_dev->dev,
 501                         "%s(): unable to register DVB bus %d\n",
 502                         __func__, num);
 503                 goto frontend_detach;
 504         }
 505         dev_info(&ndev->pci_dev->dev, "DVB init done, num=%d\n", num);
 506         return 0;
 507 frontend_detach:
 508         vb2_dvb_dealloc_frontends(&ndev->frontends[num]);
 509         return -EINVAL;
 510 }
 511
 512 static void netup_unidvb_dvb_fini(struct netup_unidvb_dev *ndev, int num)
 513 {
 514         if (num < 0 || num > 1) {
 515                 dev_err(&ndev->pci_dev->dev,
 516                         "%s(): unable to unregister DVB bus %d\n",
 517                         __func__, num);
 518                 return;
 519         }
 520         vb2_dvb_unregister_bus(&ndev->frontends[num]);
 521         dev_info(&ndev->pci_dev->dev,
 522                 "%s(): DVB bus %d unregistered\n", __func__, num);
 523 }
 524
 525 static int netup_unidvb_dvb_setup(struct netup_unidvb_dev *ndev)
 526 {
 527         int res;
 528
 529         res = netup_unidvb_dvb_init(ndev, 0);
 530         if (res)
 531                 return res;
 532         res = netup_unidvb_dvb_init(ndev, 1);
 533         if (res) {
 534                 netup_unidvb_dvb_fini(ndev, 0);
 535                 return res;
 536         }
 537         return 0;
 538 }
 539
 540 static int netup_unidvb_ring_copy(struct netup_dma *dma,
 541                                   struct netup_unidvb_buffer *buf)
 542 {
 543         u32 copy_bytes, ring_bytes;
 544         u32 buff_bytes = NETUP_DMA_PACKETS_COUNT * 188 - buf->size;
 545         u8 *p = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
 546         struct netup_unidvb_dev *ndev = dma->ndev;
 547
 548         if (p == NULL) {
 549                 dev_err(&ndev->pci_dev->dev,
 550                         "%s(): buffer is NULL\n", __func__);
 551                 return -EINVAL;
 552         }
 553         p += buf->size;
 554         if (dma->data_offset + dma->data_size > dma->ring_buffer_size) {
 555                 ring_bytes = dma->ring_buffer_size - dma->data_offset;
 556                 copy_bytes = (ring_bytes > buff_bytes) ?
 557                         buff_bytes : ring_bytes;
 558                 memcpy_fromio(p, (u8 __iomem *)(dma->addr_virt + dma->data_offset), copy_bytes);
 559                 p += copy_bytes;
 560                 buf->size += copy_bytes;
 561                 buff_bytes -= copy_bytes;
 562                 dma->data_size -= copy_bytes;
 563                 dma->data_offset += copy_bytes;
 564                 if (dma->data_offset == dma->ring_buffer_size)
 565                         dma->data_offset = 0;
 566         }
 567         if (buff_bytes > 0) {
 568                 ring_bytes = dma->data_size;
 569                 copy_bytes = (ring_bytes > buff_bytes) ?
 570                                 buff_bytes : ring_bytes;
 571                 memcpy_fromio(p, (u8 __iomem *)(dma->addr_virt + dma->data_offset), copy_bytes);
 572                 buf->size += copy_bytes;
 573                 dma->data_size -= copy_bytes;
 574                 dma->data_offset += copy_bytes;
 575                 if (dma->data_offset == dma->ring_buffer_size)
 576                         dma->data_offset = 0;
 577         }
 578         return 0;
 579 }
 580
 581 static void netup_unidvb_dma_worker(struct work_struct *work)
 582 {
 583         struct netup_dma *dma = container_of(work, struct netup_dma, work);
 584         struct netup_unidvb_dev *ndev = dma->ndev;
 585         struct netup_unidvb_buffer *buf;
 586         unsigned long flags;
 587
 588         spin_lock_irqsave(&dma->lock, flags);
 589         if (dma->data_size == 0) {
 590                 dev_dbg(&ndev->pci_dev->dev,
 591                         "%s(): data_size == 0\n", __func__);
 592                 goto work_done;
 593         }
 594         while (dma->data_size > 0) {
 595                 if (list_empty(&dma->free_buffers)) {
 596                         dev_dbg(&ndev->pci_dev->dev,
 597                                 "%s(): no free buffers\n", __func__);
 598                         goto work_done;
 599                 }
 600                 buf = list_first_entry(&dma->free_buffers,
 601                         struct netup_unidvb_buffer, list);
 602                 if (buf->size >= NETUP_DMA_PACKETS_COUNT * 188) {
 603                         dev_dbg(&ndev->pci_dev->dev,
 604                                 "%s(): buffer overflow, size %d\n",
 605                                 __func__, buf->size);
 606                         goto work_done;
 607                 }
 608                 if (netup_unidvb_ring_copy(dma, buf))
 609                         goto work_done;
 610                 if (buf->size == NETUP_DMA_PACKETS_COUNT * 188) {
 611                         list_del(&buf->list);
 612                         dev_dbg(&ndev->pci_dev->dev,
 613                                 "%s(): buffer %p done, size %d\n",
 614                                 __func__, buf, buf->size);
 615                         buf->vb.vb2_buf.timestamp = ktime_get_ns();
 616                         vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->size);
 617                         vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
 618                 }
 619         }
 620 work_done:
 621         dma->data_size = 0;
 622         spin_unlock_irqrestore(&dma->lock, flags);
 623 }
 624
 625 static void netup_unidvb_queue_cleanup(struct netup_dma *dma)
 626 {
 627         struct netup_unidvb_buffer *buf;
 628         unsigned long flags;
 629
 630         spin_lock_irqsave(&dma->lock, flags);
 631         while (!list_empty(&dma->free_buffers)) {
 632                 buf = list_first_entry(&dma->free_buffers,
 633                         struct netup_unidvb_buffer, list);
 634                 list_del(&buf->list);
 635                 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 636         }
 637         spin_unlock_irqrestore(&dma->lock, flags);
 638 }
 639
 640 static void netup_unidvb_dma_timeout(unsigned long data)
 641 {
 642         struct netup_dma *dma = (struct netup_dma *)data;
 643         struct netup_unidvb_dev *ndev = dma->ndev;
 644
 645         dev_dbg(&ndev->pci_dev->dev, "%s()\n", __func__);
 646         netup_unidvb_queue_cleanup(dma);
 647 }
 648
 649 static int netup_unidvb_dma_init(struct netup_unidvb_dev *ndev, int num)
 650 {
 651         struct netup_dma *dma;
 652         struct device *dev = &ndev->pci_dev->dev;
 653
 654         if (num < 0 || num > 1) {
 655                 dev_err(dev, "%s(): unable to register DMA%d\n",
 656                         __func__, num);
 657                 return -ENODEV;
 658         }
 659         dma = &ndev->dma[num];
 660         dev_info(dev, "%s(): starting DMA%d\n", __func__, num);
 661         dma->num = num;
 662         dma->ndev = ndev;
 663         spin_lock_init(&dma->lock);
 664         INIT_WORK(&dma->work, netup_unidvb_dma_worker);
 665         INIT_LIST_HEAD(&dma->free_buffers);
 666         dma->timeout.function = netup_unidvb_dma_timeout;
 667         dma->timeout.data = (unsigned long)dma;
 668         init_timer(&dma->timeout);
 669         dma->ring_buffer_size = ndev->dma_size / 2;
 670         dma->addr_virt = ndev->dma_virt + dma->ring_buffer_size * num;
 671         dma->addr_phys = (dma_addr_t)((u64)ndev->dma_phys +
 672                 dma->ring_buffer_size * num);
 673         dev_info(dev, "%s(): DMA%d buffer virt/phys 0x%p/0x%llx size %d\n",
 674                 __func__, num, dma->addr_virt,
 675                 (unsigned long long)dma->addr_phys,
 676                 dma->ring_buffer_size);
 677         memset_io((u8 __iomem *)dma->addr_virt, 0, dma->ring_buffer_size);
 678         dma->addr_last = dma->addr_phys;
 679         dma->high_addr = (u32)(dma->addr_phys & 0xC0000000);
 680         dma->regs = (struct netup_dma_regs __iomem *)(num == 0 ?
 681                 ndev->bmmio0 + NETUP_DMA0_ADDR :
 682                 ndev->bmmio0 + NETUP_DMA1_ADDR);
 683         writel((NETUP_DMA_BLOCKS_COUNT << 24) |
 684                 (NETUP_DMA_PACKETS_COUNT << 8) | 188, &dma->regs->size);
 685         writel((u32)(dma->addr_phys & 0x3FFFFFFF), &dma->regs->start_addr_lo);
 686         writel(0, &dma->regs->start_addr_hi);
 687         writel(dma->high_addr, ndev->bmmio0 + 0x1000);
 688         writel(375000000, &dma->regs->timeout);
 689         msleep(1000);
 690         writel(BIT_DMA_IRQ, &dma->regs->ctrlstat_clear);
 691         return 0;
 692 }
 693
 694 static void netup_unidvb_dma_fini(struct netup_unidvb_dev *ndev, int num)
 695 {
 696         struct netup_dma *dma;
 697
 698         if (num < 0 || num > 1)
 699                 return;
 700         dev_dbg(&ndev->pci_dev->dev, "%s(): num %d\n", __func__, num);
 701         dma = &ndev->dma[num];
 702         netup_unidvb_dma_enable(dma, 0);
 703         msleep(50);
 704         cancel_work_sync(&dma->work);
 705         del_timer(&dma->timeout);
 706 }
 707
 708 static int netup_unidvb_dma_setup(struct netup_unidvb_dev *ndev)
 709 {
 710         int res;
 711
 712         res = netup_unidvb_dma_init(ndev, 0);
 713         if (res)
 714                 return res;
 715         res = netup_unidvb_dma_init(ndev, 1);
 716         if (res) {
 717                 netup_unidvb_dma_fini(ndev, 0);
 718                 return res;
 719         }
 720         netup_unidvb_dma_enable(&ndev->dma[0], 0);
 721         netup_unidvb_dma_enable(&ndev->dma[1], 0);
 722         return 0;
 723 }
 724
 725 static int netup_unidvb_ci_setup(struct netup_unidvb_dev *ndev,
 726                                  struct pci_dev *pci_dev)
 727 {
 728         int res;
 729
 730         writew(NETUP_UNIDVB_IRQ_CI, ndev->bmmio0 + REG_IMASK_SET);
 731         res = netup_unidvb_ci_register(ndev, 0, pci_dev);
 732         if (res)
 733                 return res;
 734         res = netup_unidvb_ci_register(ndev, 1, pci_dev);
 735         if (res)
 736                 netup_unidvb_ci_unregister(ndev, 0);
 737         return res;
 738 }
 739
 740 static int netup_unidvb_request_mmio(struct pci_dev *pci_dev)
 741 {
 742         if (!request_mem_region(pci_resource_start(pci_dev, 0),
 743                         pci_resource_len(pci_dev, 0), NETUP_UNIDVB_NAME)) {
 744                 dev_err(&pci_dev->dev,
 745                         "%s(): unable to request MMIO bar 0 at 0x%llx\n",
 746                         __func__,
 747                         (unsigned long long)pci_resource_start(pci_dev, 0));
 748                 return -EBUSY;
 749         }
 750         if (!request_mem_region(pci_resource_start(pci_dev, 1),
 751                         pci_resource_len(pci_dev, 1), NETUP_UNIDVB_NAME)) {
 752                 dev_err(&pci_dev->dev,
 753                         "%s(): unable to request MMIO bar 1 at 0x%llx\n",
 754                         __func__,
 755                         (unsigned long long)pci_resource_start(pci_dev, 1));
 756                 release_mem_region(pci_resource_start(pci_dev, 0),
 757                         pci_resource_len(pci_dev, 0));
 758                 return -EBUSY;
 759         }
 760         return 0;
 761 }
 762
 763 static int netup_unidvb_request_modules(struct device *dev)
 764 {
 765         static const char * const modules[] = {
 766                 "lnbh25", "ascot2e", "horus3a", "cxd2841er", "helene", NULL
 767         };
 768         const char * const *curr_mod = modules;
 769         int err;
 770
 771         while (*curr_mod != NULL) {
 772                 err = request_module(*curr_mod);
 773                 if (err) {
 774                         dev_warn(dev, "request_module(%s) failed: %d\n",
 775                                 *curr_mod, err);
 776                 }
 777                 ++curr_mod;
 778         }
 779         return 0;
 780 }
 781
 782 static int netup_unidvb_initdev(struct pci_dev *pci_dev,
 783                                 const struct pci_device_id *pci_id)
 784 {
 785         u8 board_revision;
 786         u16 board_vendor;
 787         struct netup_unidvb_dev *ndev;
 788         int old_firmware = 0;
 789
 790         netup_unidvb_request_modules(&pci_dev->dev);
 791
 792         /* Check card revision */
 793         if (pci_dev->revision != NETUP_PCI_DEV_REVISION) {
 794                 dev_err(&pci_dev->dev,
 795                         "netup_unidvb: expected card revision %d, got %d\n",
 796                         NETUP_PCI_DEV_REVISION, pci_dev->revision);
 797                 dev_err(&pci_dev->dev,
 798                         "Please upgrade firmware!\n");
 799                 dev_err(&pci_dev->dev,
 800                         "Instructions on http://www.netup.tv\n");
 801                 old_firmware = 1;
 802                 spi_enable = 1;
 803         }
 804
 805         /* allocate device context */
 806         ndev = kzalloc(sizeof(*ndev), GFP_KERNEL);
 807         if (!ndev)
 808                 goto dev_alloc_err;
 809
 810         /* detect hardware revision */
 811         if (pci_dev->device == NETUP_HW_REV_1_3)
 812                 ndev->rev = NETUP_HW_REV_1_3;
 813         else
 814                 ndev->rev = NETUP_HW_REV_1_4;
 815
 816         dev_info(&pci_dev->dev,
 817                 "%s(): board (0x%x) hardware revision 0x%x\n",
 818                 __func__, pci_dev->device, ndev->rev);
 819
 820         ndev->old_fw = old_firmware;
 821         ndev->wq = create_singlethread_workqueue(NETUP_UNIDVB_NAME);
 822         if (!ndev->wq) {
 823                 dev_err(&pci_dev->dev,
 824                         "%s(): unable to create workqueue\n", __func__);
 825                 goto wq_create_err;
 826         }
 827         ndev->pci_dev = pci_dev;
 828         ndev->pci_bus = pci_dev->bus->number;
 829         ndev->pci_slot = PCI_SLOT(pci_dev->devfn);
 830         ndev->pci_func = PCI_FUNC(pci_dev->devfn);
 831         ndev->board_num = ndev->pci_bus*10 + ndev->pci_slot;
 832         pci_set_drvdata(pci_dev, ndev);
 833         /* PCI init */
 834         dev_info(&pci_dev->dev, "%s(): PCI device (%d). Bus:0x%x Slot:0x%x\n",
 835                 __func__, ndev->board_num, ndev->pci_bus, ndev->pci_slot);
 836
 837         if (pci_enable_device(pci_dev)) {
 838                 dev_err(&pci_dev->dev, "%s(): pci_enable_device failed\n",
 839                         __func__);
 840                 goto pci_enable_err;
 841         }
 842         /* read PCI info */
 843         pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &board_revision);
 844         pci_read_config_word(pci_dev, PCI_VENDOR_ID, &board_vendor);
 845         if (board_vendor != NETUP_VENDOR_ID) {
 846                 dev_err(&pci_dev->dev, "%s(): unknown board vendor 0x%x",
 847                         __func__, board_vendor);
 848                 goto pci_detect_err;
 849         }
 850         dev_info(&pci_dev->dev,
 851                 "%s(): board vendor 0x%x, revision 0x%x\n",
 852                 __func__, board_vendor, board_revision);
 853         pci_set_master(pci_dev);
 854         if (pci_set_dma_mask(pci_dev, 0xffffffff) < 0) {
 855                 dev_err(&pci_dev->dev,
 856                         "%s(): 32bit PCI DMA is not supported\n", __func__);
 857                 goto pci_detect_err;
 858         }
 859         dev_info(&pci_dev->dev, "%s(): using 32bit PCI DMA\n", __func__);
 860         /* Clear "no snoop" and "relaxed ordering" bits, use default MRRS. */
 861         pcie_capability_clear_and_set_word(pci_dev, PCI_EXP_DEVCTL,
 862                 PCI_EXP_DEVCTL_READRQ | PCI_EXP_DEVCTL_RELAX_EN |
 863                 PCI_EXP_DEVCTL_NOSNOOP_EN, 0);
 864         /* Adjust PCIe completion timeout. */
 865         pcie_capability_clear_and_set_word(pci_dev,
 866                 PCI_EXP_DEVCTL2, 0xf, 0x2);
 867
 868         if (netup_unidvb_request_mmio(pci_dev)) {
 869                 dev_err(&pci_dev->dev,
 870                         "%s(): unable to request MMIO regions\n", __func__);
 871                 goto pci_detect_err;
 872         }
 873         ndev->lmmio0 = ioremap(pci_resource_start(pci_dev, 0),
 874                 pci_resource_len(pci_dev, 0));
 875         if (!ndev->lmmio0) {
 876                 dev_err(&pci_dev->dev,
 877                         "%s(): unable to remap MMIO bar 0\n", __func__);
 878                 goto pci_bar0_error;
 879         }
 880         ndev->lmmio1 = ioremap(pci_resource_start(pci_dev, 1),
 881                 pci_resource_len(pci_dev, 1));
 882         if (!ndev->lmmio1) {
 883                 dev_err(&pci_dev->dev,
 884                         "%s(): unable to remap MMIO bar 1\n", __func__);
 885                 goto pci_bar1_error;
 886         }
 887         ndev->bmmio0 = (u8 __iomem *)ndev->lmmio0;
 888         ndev->bmmio1 = (u8 __iomem *)ndev->lmmio1;
 889         dev_info(&pci_dev->dev,
 890                 "%s(): PCI MMIO at 0x%p (%d); 0x%p (%d); IRQ %d",
 891                 __func__,
 892                 ndev->lmmio0, (u32)pci_resource_len(pci_dev, 0),
 893                 ndev->lmmio1, (u32)pci_resource_len(pci_dev, 1),
 894                 pci_dev->irq);
 895         if (request_irq(pci_dev->irq, netup_unidvb_isr, IRQF_SHARED,
 896                         "netup_unidvb", pci_dev) < 0) {
 897                 dev_err(&pci_dev->dev,
 898                         "%s(): can't get IRQ %d\n", __func__, pci_dev->irq);
 899                 goto irq_request_err;
 900         }
 901         ndev->dma_size = 2 * 188 *
 902                 NETUP_DMA_BLOCKS_COUNT * NETUP_DMA_PACKETS_COUNT;
 903         ndev->dma_virt = dma_alloc_coherent(&pci_dev->dev,
 904                 ndev->dma_size, &ndev->dma_phys, GFP_KERNEL);
 905         if (!ndev->dma_virt) {
 906                 dev_err(&pci_dev->dev, "%s(): unable to allocate DMA buffer\n",
 907                         __func__);
 908                 goto dma_alloc_err;
 909         }
 910         netup_unidvb_dev_enable(ndev);
 911         if (spi_enable && netup_spi_init(ndev)) {
 912                 dev_warn(&pci_dev->dev,
 913                         "netup_unidvb: SPI flash setup failed\n");
 914                 goto spi_setup_err;
 915         }
 916         if (old_firmware) {
 917                 dev_err(&pci_dev->dev,
 918                         "netup_unidvb: card initialization was incomplete\n");
 919                 return 0;
 920         }
 921         if (netup_i2c_register(ndev)) {
 922                 dev_err(&pci_dev->dev, "netup_unidvb: I2C setup failed\n");
 923                 goto i2c_setup_err;
 924         }
 925         /* enable I2C IRQs */
 926         writew(NETUP_UNIDVB_IRQ_I2C0 | NETUP_UNIDVB_IRQ_I2C1,
 927                 ndev->bmmio0 + REG_IMASK_SET);
 928         usleep_range(5000, 10000);
 929         if (netup_unidvb_dvb_setup(ndev)) {
 930                 dev_err(&pci_dev->dev, "netup_unidvb: DVB setup failed\n");
 931                 goto dvb_setup_err;
 932         }
 933         if (netup_unidvb_ci_setup(ndev, pci_dev)) {
 934                 dev_err(&pci_dev->dev, "netup_unidvb: CI setup failed\n");
 935                 goto ci_setup_err;
 936         }
 937         if (netup_unidvb_dma_setup(ndev)) {
 938                 dev_err(&pci_dev->dev, "netup_unidvb: DMA setup failed\n");
 939                 goto dma_setup_err;
 940         }
 941         dev_info(&pci_dev->dev,
 942                 "netup_unidvb: device has been initialized\n");
 943         return 0;
 944 dma_setup_err:
 945         netup_unidvb_ci_unregister(ndev, 0);
 946         netup_unidvb_ci_unregister(ndev, 1);
 947 ci_setup_err:
 948         netup_unidvb_dvb_fini(ndev, 0);
 949         netup_unidvb_dvb_fini(ndev, 1);
 950 dvb_setup_err:
 951         netup_i2c_unregister(ndev);
 952 i2c_setup_err:
 953         if (ndev->spi)
 954                 netup_spi_release(ndev);
 955 spi_setup_err:
 956         dma_free_coherent(&pci_dev->dev, ndev->dma_size,
 957                         ndev->dma_virt, ndev->dma_phys);
 958 dma_alloc_err:
 959         free_irq(pci_dev->irq, pci_dev);
 960 irq_request_err:
 961         iounmap(ndev->lmmio1);
 962 pci_bar1_error:
 963         iounmap(ndev->lmmio0);
 964 pci_bar0_error:
 965         release_mem_region(pci_resource_start(pci_dev, 0),
 966                 pci_resource_len(pci_dev, 0));
 967         release_mem_region(pci_resource_start(pci_dev, 1),
 968                 pci_resource_len(pci_dev, 1));
 969 pci_detect_err:
 970         pci_disable_device(pci_dev);
 971 pci_enable_err:
 972         pci_set_drvdata(pci_dev, NULL);
 973         destroy_workqueue(ndev->wq);
 974 wq_create_err:
 975         kfree(ndev);
 976 dev_alloc_err:
 977         dev_err(&pci_dev->dev,
 978                 "%s(): failed to initialize device\n", __func__);
 979         return -EIO;
 980 }
 981
 982 static void netup_unidvb_finidev(struct pci_dev *pci_dev)
 983 {
 984         struct netup_unidvb_dev *ndev = pci_get_drvdata(pci_dev);
 985
 986         dev_info(&pci_dev->dev, "%s(): trying to stop device\n", __func__);
 987         if (!ndev->old_fw) {
 988                 netup_unidvb_dma_fini(ndev, 0);
 989                 netup_unidvb_dma_fini(ndev, 1);
 990                 netup_unidvb_ci_unregister(ndev, 0);
 991                 netup_unidvb_ci_unregister(ndev, 1);
 992                 netup_unidvb_dvb_fini(ndev, 0);
 993                 netup_unidvb_dvb_fini(ndev, 1);
 994                 netup_i2c_unregister(ndev);
 995         }
 996         if (ndev->spi)
 997                 netup_spi_release(ndev);
 998         writew(0xffff, ndev->bmmio0 + REG_IMASK_CLEAR);
 999         dma_free_coherent(&ndev->pci_dev->dev, ndev->dma_size,
1000                         ndev->dma_virt, ndev->dma_phys);
1001         free_irq(pci_dev->irq, pci_dev);
1002         iounmap(ndev->lmmio0);
1003         iounmap(ndev->lmmio1);
1004         release_mem_region(pci_resource_start(pci_dev, 0),
1005                 pci_resource_len(pci_dev, 0));
1006         release_mem_region(pci_resource_start(pci_dev, 1),
1007                 pci_resource_len(pci_dev, 1));
1008         pci_disable_device(pci_dev);
1009         pci_set_drvdata(pci_dev, NULL);
1010         destroy_workqueue(ndev->wq);
1011         kfree(ndev);
1012         dev_info(&pci_dev->dev,
1013                 "%s(): device has been successfully stopped\n", __func__);
1014 }
1015
1016
1017 static struct pci_device_id netup_unidvb_pci_tbl[] = {
1018         { PCI_DEVICE(0x1b55, 0x18f6) }, /* hw rev. 1.3 */
1019         { PCI_DEVICE(0x1b55, 0x18f7) }, /* hw rev. 1.4 */
1020         { 0, }
1021 };
1022 MODULE_DEVICE_TABLE(pci, netup_unidvb_pci_tbl);
1023
1024 static struct pci_driver netup_unidvb_pci_driver = {
1025         .name     = "netup_unidvb",
1026         .id_table = netup_unidvb_pci_tbl,
1027         .probe    = netup_unidvb_initdev,
1028         .remove   = netup_unidvb_finidev,
1029         .suspend  = NULL,
1030         .resume   = NULL,
1031 };
1032
1033 static int __init netup_unidvb_init(void)
1034 {
1035         return pci_register_driver(&netup_unidvb_pci_driver);
1036 }
1037
1038 static void __exit netup_unidvb_fini(void)
1039 {
1040         pci_unregister_driver(&netup_unidvb_pci_driver);
1041 }
1042
1043 module_init(netup_unidvb_init);
1044 module_exit(netup_unidvb_fini);