3 * Support for the mpeg transport stream transfers
4 * PCI function #2 of the cx2388x.
6 * (c) 2004 Jelle Foks <jelle@foks.us>
7 * (c) 2004 Chris Pascoe <c.pascoe@itee.uq.edu.au>
8 * (c) 2004 Gerd Knorr <kraxel@bytesex.org>
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.
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.
23 #include <linux/module.h>
24 #include <linux/slab.h>
25 #include <linux/init.h>
26 #include <linux/device.h>
27 #include <linux/dma-mapping.h>
28 #include <linux/interrupt.h>
29 #include <linux/delay.h>
31 /* ------------------------------------------------------------------ */
33 MODULE_DESCRIPTION("mpeg driver for cx2388x based TV cards");
34 MODULE_AUTHOR("Jelle Foks <jelle@foks.us>");
35 MODULE_AUTHOR("Chris Pascoe <c.pascoe@itee.uq.edu.au>");
36 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
37 MODULE_LICENSE("GPL");
38 MODULE_VERSION(CX88_VERSION);
40 static unsigned int debug;
41 module_param(debug, int, 0644);
42 MODULE_PARM_DESC(debug, "enable debug messages [mpeg]");
44 #define dprintk(level, fmt, arg...) do { \
45 if (debug + 1 > level) \
46 printk(KERN_DEBUG pr_fmt("%s: mpeg:" fmt), \
50 #if defined(CONFIG_MODULES) && defined(MODULE)
51 static void request_module_async(struct work_struct *work)
53 struct cx8802_dev *dev = container_of(work, struct cx8802_dev,
56 if (dev->core->board.mpeg & CX88_MPEG_DVB)
57 request_module("cx88-dvb");
58 if (dev->core->board.mpeg & CX88_MPEG_BLACKBIRD)
59 request_module("cx88-blackbird");
62 static void request_modules(struct cx8802_dev *dev)
64 INIT_WORK(&dev->request_module_wk, request_module_async);
65 schedule_work(&dev->request_module_wk);
68 static void flush_request_modules(struct cx8802_dev *dev)
70 flush_work(&dev->request_module_wk);
73 #define request_modules(dev)
74 #define flush_request_modules(dev)
75 #endif /* CONFIG_MODULES */
77 static LIST_HEAD(cx8802_devlist);
78 static DEFINE_MUTEX(cx8802_mutex);
79 /* ------------------------------------------------------------------ */
81 int cx8802_start_dma(struct cx8802_dev *dev,
82 struct cx88_dmaqueue *q,
83 struct cx88_buffer *buf)
85 struct cx88_core *core = dev->core;
87 dprintk(1, "w: %d, h: %d, f: %d\n",
88 core->width, core->height, core->field);
90 /* setup fifo + format */
91 cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH28],
92 dev->ts_packet_size, buf->risc.dma);
94 /* write TS length to chip */
95 cx_write(MO_TS_LNGTH, dev->ts_packet_size);
98 * FIXME: this needs a review.
99 * also: move to cx88-blackbird + cx88-dvb source files?
102 dprintk(1, "core->active_type_id = 0x%08x\n", core->active_type_id);
104 if ((core->active_type_id == CX88_MPEG_DVB) &&
105 (core->board.mpeg & CX88_MPEG_DVB)) {
106 dprintk(1, "cx8802_start_dma doing .dvb\n");
107 /* negedge driven & software reset */
108 cx_write(TS_GEN_CNTRL, 0x0040 | dev->ts_gen_cntrl);
110 cx_write(MO_PINMUX_IO, 0x00);
111 cx_write(TS_HW_SOP_CNTRL, 0x47 << 16 | 188 << 4 | 0x01);
112 switch (core->boardnr) {
113 case CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD_Q:
114 case CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD_T:
115 case CX88_BOARD_DVICO_FUSIONHDTV_5_GOLD:
116 case CX88_BOARD_PCHDTV_HD5500:
117 cx_write(TS_SOP_STAT, 1 << 13);
119 case CX88_BOARD_SAMSUNG_SMT_7020:
120 cx_write(TS_SOP_STAT, 0x00);
122 case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
123 case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
124 /* Enable MPEG parallel IO and video signal pins */
125 cx_write(MO_PINMUX_IO, 0x88);
128 case CX88_BOARD_HAUPPAUGE_HVR1300:
129 /* Enable MPEG parallel IO and video signal pins */
130 cx_write(MO_PINMUX_IO, 0x88);
131 cx_write(TS_SOP_STAT, 0);
132 cx_write(TS_VALERR_CNTRL, 0);
134 case CX88_BOARD_PINNACLE_PCTV_HD_800i:
135 /* Enable MPEG parallel IO and video signal pins */
136 cx_write(MO_PINMUX_IO, 0x88);
137 cx_write(TS_HW_SOP_CNTRL, (0x47 << 16) | (188 << 4));
138 dev->ts_gen_cntrl = 5;
139 cx_write(TS_SOP_STAT, 0);
140 cx_write(TS_VALERR_CNTRL, 0);
144 cx_write(TS_SOP_STAT, 0x00);
147 cx_write(TS_GEN_CNTRL, dev->ts_gen_cntrl);
149 } else if ((core->active_type_id == CX88_MPEG_BLACKBIRD) &&
150 (core->board.mpeg & CX88_MPEG_BLACKBIRD)) {
151 dprintk(1, "cx8802_start_dma doing .blackbird\n");
152 cx_write(MO_PINMUX_IO, 0x88); /* enable MPEG parallel IO */
154 /* punctured clock TS & posedge driven & software reset */
155 cx_write(TS_GEN_CNTRL, 0x46);
158 cx_write(TS_HW_SOP_CNTRL, 0x408); /* mpeg start byte */
159 cx_write(TS_VALERR_CNTRL, 0x2000);
161 /* punctured clock TS & posedge driven */
162 cx_write(TS_GEN_CNTRL, 0x06);
165 pr_err("%s() Failed. Unsupported value in .mpeg (0x%08x)\n",
166 __func__, core->board.mpeg);
171 cx_write(MO_TS_GPCNTRL, GP_COUNT_CONTROL_RESET);
175 dprintk(1, "setting the interrupt mask\n");
176 cx_set(MO_PCI_INTMSK, core->pci_irqmask | PCI_INT_TSINT);
177 cx_set(MO_TS_INTMSK, 0x1f0011);
180 cx_set(MO_DEV_CNTRL2, (1 << 5));
181 cx_set(MO_TS_DMACNTRL, 0x11);
184 EXPORT_SYMBOL(cx8802_start_dma);
186 static int cx8802_stop_dma(struct cx8802_dev *dev)
188 struct cx88_core *core = dev->core;
193 cx_clear(MO_TS_DMACNTRL, 0x11);
196 cx_clear(MO_PCI_INTMSK, PCI_INT_TSINT);
197 cx_clear(MO_TS_INTMSK, 0x1f0011);
199 /* Reset the controller */
200 cx_write(TS_GEN_CNTRL, 0xcd);
204 static int cx8802_restart_queue(struct cx8802_dev *dev,
205 struct cx88_dmaqueue *q)
207 struct cx88_buffer *buf;
210 if (list_empty(&q->active))
213 buf = list_entry(q->active.next, struct cx88_buffer, list);
214 dprintk(2, "restart_queue [%p/%d]: restart dma\n",
215 buf, buf->vb.vb2_buf.index);
216 cx8802_start_dma(dev, q, buf);
220 /* ------------------------------------------------------------------ */
222 int cx8802_buf_prepare(struct vb2_queue *q, struct cx8802_dev *dev,
223 struct cx88_buffer *buf)
225 int size = dev->ts_packet_size * dev->ts_packet_count;
226 struct sg_table *sgt = vb2_dma_sg_plane_desc(&buf->vb.vb2_buf, 0);
227 struct cx88_riscmem *risc = &buf->risc;
230 if (vb2_plane_size(&buf->vb.vb2_buf, 0) < size)
232 vb2_set_plane_payload(&buf->vb.vb2_buf, 0, size);
234 rc = cx88_risc_databuffer(dev->pci, risc, sgt->sgl,
235 dev->ts_packet_size, dev->ts_packet_count, 0);
238 pci_free_consistent(dev->pci, risc->size,
239 risc->cpu, risc->dma);
240 memset(risc, 0, sizeof(*risc));
245 EXPORT_SYMBOL(cx8802_buf_prepare);
247 void cx8802_buf_queue(struct cx8802_dev *dev, struct cx88_buffer *buf)
249 struct cx88_buffer *prev;
250 struct cx88_dmaqueue *cx88q = &dev->mpegq;
253 /* add jump to start */
254 buf->risc.cpu[1] = cpu_to_le32(buf->risc.dma + 8);
255 buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_CNT_INC);
256 buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma + 8);
258 if (list_empty(&cx88q->active)) {
259 dprintk(1, "queue is empty - first active\n");
260 list_add_tail(&buf->list, &cx88q->active);
261 dprintk(1, "[%p/%d] %s - first active\n",
262 buf, buf->vb.vb2_buf.index, __func__);
265 buf->risc.cpu[0] |= cpu_to_le32(RISC_IRQ1);
266 dprintk(1, "queue is not empty - append to active\n");
267 prev = list_entry(cx88q->active.prev, struct cx88_buffer, list);
268 list_add_tail(&buf->list, &cx88q->active);
269 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
270 dprintk(1, "[%p/%d] %s - append to active\n",
271 buf, buf->vb.vb2_buf.index, __func__);
274 EXPORT_SYMBOL(cx8802_buf_queue);
276 /* ----------------------------------------------------------- */
278 static void do_cancel_buffers(struct cx8802_dev *dev)
280 struct cx88_dmaqueue *q = &dev->mpegq;
281 struct cx88_buffer *buf;
284 spin_lock_irqsave(&dev->slock, flags);
285 while (!list_empty(&q->active)) {
286 buf = list_entry(q->active.next, struct cx88_buffer, list);
287 list_del(&buf->list);
288 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
290 spin_unlock_irqrestore(&dev->slock, flags);
293 void cx8802_cancel_buffers(struct cx8802_dev *dev)
296 cx8802_stop_dma(dev);
297 do_cancel_buffers(dev);
299 EXPORT_SYMBOL(cx8802_cancel_buffers);
301 static const char *cx88_mpeg_irqs[32] = {
302 "ts_risci1", NULL, NULL, NULL,
303 "ts_risci2", NULL, NULL, NULL,
304 "ts_oflow", NULL, NULL, NULL,
305 "ts_sync", NULL, NULL, NULL,
306 "opc_err", "par_err", "rip_err", "pci_abort",
310 static void cx8802_mpeg_irq(struct cx8802_dev *dev)
312 struct cx88_core *core = dev->core;
313 u32 status, mask, count;
316 status = cx_read(MO_TS_INTSTAT);
317 mask = cx_read(MO_TS_INTMSK);
318 if (0 == (status & mask))
321 cx_write(MO_TS_INTSTAT, status);
323 if (debug || (status & mask & ~0xff))
324 cx88_print_irqbits("irq mpeg ",
325 cx88_mpeg_irqs, ARRAY_SIZE(cx88_mpeg_irqs),
328 /* risc op code error */
329 if (status & (1 << 16)) {
330 pr_warn("mpeg risc op code error\n");
331 cx_clear(MO_TS_DMACNTRL, 0x11);
332 cx88_sram_channel_dump(dev->core,
333 &cx88_sram_channels[SRAM_CH28]);
338 dprintk(1, "wake up\n");
339 spin_lock(&dev->slock);
340 count = cx_read(MO_TS_GPCNT);
341 cx88_wakeup(dev->core, &dev->mpegq, count);
342 spin_unlock(&dev->slock);
345 /* other general errors */
346 if (status & 0x1f0100) {
347 dprintk(0, "general errors: 0x%08x\n", status & 0x1f0100);
348 spin_lock(&dev->slock);
349 cx8802_stop_dma(dev);
350 spin_unlock(&dev->slock);
354 #define MAX_IRQ_LOOP 10
356 static irqreturn_t cx8802_irq(int irq, void *dev_id)
358 struct cx8802_dev *dev = dev_id;
359 struct cx88_core *core = dev->core;
361 int loop, handled = 0;
363 for (loop = 0; loop < MAX_IRQ_LOOP; loop++) {
364 status = cx_read(MO_PCI_INTSTAT) &
365 (core->pci_irqmask | PCI_INT_TSINT);
368 dprintk(1, "cx8802_irq\n");
369 dprintk(1, " loop: %d/%d\n", loop, MAX_IRQ_LOOP);
370 dprintk(1, " status: %d\n", status);
372 cx_write(MO_PCI_INTSTAT, status);
374 if (status & core->pci_irqmask)
375 cx88_core_irq(core, status);
376 if (status & PCI_INT_TSINT)
377 cx8802_mpeg_irq(dev);
379 if (loop == MAX_IRQ_LOOP) {
380 dprintk(0, "clearing mask\n");
381 pr_warn("irq loop -- clearing mask\n");
382 cx_write(MO_PCI_INTMSK, 0);
386 return IRQ_RETVAL(handled);
389 static int cx8802_init_common(struct cx8802_dev *dev)
391 struct cx88_core *core = dev->core;
395 if (pci_enable_device(dev->pci))
397 pci_set_master(dev->pci);
398 err = pci_set_dma_mask(dev->pci, DMA_BIT_MASK(32));
400 pr_err("Oops: no 32bit PCI DMA ???\n");
404 dev->pci_rev = dev->pci->revision;
405 pci_read_config_byte(dev->pci, PCI_LATENCY_TIMER, &dev->pci_lat);
406 pr_info("found at %s, rev: %d, irq: %d, latency: %d, mmio: 0x%llx\n",
407 pci_name(dev->pci), dev->pci_rev, dev->pci->irq,
409 (unsigned long long)pci_resource_start(dev->pci, 0));
411 /* initialize driver struct */
412 spin_lock_init(&dev->slock);
415 INIT_LIST_HEAD(&dev->mpegq.active);
418 err = request_irq(dev->pci->irq, cx8802_irq,
419 IRQF_SHARED, dev->core->name, dev);
421 pr_err("can't get IRQ %d\n", dev->pci->irq);
424 cx_set(MO_PCI_INTMSK, core->pci_irqmask);
426 /* everything worked */
427 pci_set_drvdata(dev->pci, dev);
431 static void cx8802_fini_common(struct cx8802_dev *dev)
434 cx8802_stop_dma(dev);
435 pci_disable_device(dev->pci);
437 /* unregister stuff */
438 free_irq(dev->pci->irq, dev);
441 /* ----------------------------------------------------------- */
443 static int cx8802_suspend_common(struct pci_dev *pci_dev, pm_message_t state)
445 struct cx8802_dev *dev = pci_get_drvdata(pci_dev);
449 spin_lock_irqsave(&dev->slock, flags);
450 if (!list_empty(&dev->mpegq.active)) {
451 dprintk(2, "suspend\n");
452 pr_info("suspend mpeg\n");
453 cx8802_stop_dma(dev);
455 spin_unlock_irqrestore(&dev->slock, flags);
457 /* FIXME -- shutdown device */
458 cx88_shutdown(dev->core);
460 pci_save_state(pci_dev);
461 if (pci_set_power_state(pci_dev,
462 pci_choose_state(pci_dev, state)) != 0) {
463 pci_disable_device(pci_dev);
464 dev->state.disabled = 1;
469 static int cx8802_resume_common(struct pci_dev *pci_dev)
471 struct cx8802_dev *dev = pci_get_drvdata(pci_dev);
475 if (dev->state.disabled) {
476 err = pci_enable_device(pci_dev);
478 pr_err("can't enable device\n");
481 dev->state.disabled = 0;
483 err = pci_set_power_state(pci_dev, PCI_D0);
485 pr_err("can't enable device\n");
486 pci_disable_device(pci_dev);
487 dev->state.disabled = 1;
491 pci_restore_state(pci_dev);
493 /* FIXME: re-initialize hardware */
494 cx88_reset(dev->core);
496 /* restart video+vbi capture */
497 spin_lock_irqsave(&dev->slock, flags);
498 if (!list_empty(&dev->mpegq.active)) {
499 pr_info("resume mpeg\n");
500 cx8802_restart_queue(dev, &dev->mpegq);
502 spin_unlock_irqrestore(&dev->slock, flags);
507 struct cx8802_driver *cx8802_get_driver(struct cx8802_dev *dev,
508 enum cx88_board_type btype)
510 struct cx8802_driver *d;
512 list_for_each_entry(d, &dev->drvlist, drvlist)
513 if (d->type_id == btype)
518 EXPORT_SYMBOL(cx8802_get_driver);
520 /* Driver asked for hardware access. */
521 static int cx8802_request_acquire(struct cx8802_driver *drv)
523 struct cx88_core *core = drv->core;
526 /* Fail a request for hardware if the device is busy. */
527 if (core->active_type_id != CX88_BOARD_NONE &&
528 core->active_type_id != drv->type_id)
531 if (drv->type_id == CX88_MPEG_DVB) {
532 /* When switching to DVB, always set the input to the tuner */
533 core->last_analog_input = core->input;
536 i < (sizeof(core->board.input) /
537 sizeof(struct cx88_input));
539 if (core->board.input[i].type == CX88_VMUX_DVB) {
546 if (drv->advise_acquire) {
548 if (core->active_type_id == CX88_BOARD_NONE) {
549 core->active_type_id = drv->type_id;
550 drv->advise_acquire(drv);
553 dprintk(1, "Post acquire GPIO=%x\n", cx_read(MO_GP0_IO));
559 /* Driver asked to release hardware. */
560 static int cx8802_request_release(struct cx8802_driver *drv)
562 struct cx88_core *core = drv->core;
564 if (drv->advise_release && --core->active_ref == 0) {
565 if (drv->type_id == CX88_MPEG_DVB) {
567 * If the DVB driver is releasing, reset the input
568 * state to the last configured analog input
570 core->input = core->last_analog_input;
573 drv->advise_release(drv);
574 core->active_type_id = CX88_BOARD_NONE;
575 dprintk(1, "Post release GPIO=%x\n", cx_read(MO_GP0_IO));
581 static int cx8802_check_driver(struct cx8802_driver *drv)
586 if ((drv->type_id != CX88_MPEG_DVB) &&
587 (drv->type_id != CX88_MPEG_BLACKBIRD))
590 if ((drv->hw_access != CX8802_DRVCTL_SHARED) &&
591 (drv->hw_access != CX8802_DRVCTL_EXCLUSIVE))
596 (!drv->advise_acquire) ||
597 (!drv->advise_release))
603 int cx8802_register_driver(struct cx8802_driver *drv)
605 struct cx8802_dev *dev;
606 struct cx8802_driver *driver;
609 pr_info("registering cx8802 driver, type: %s access: %s\n",
610 drv->type_id == CX88_MPEG_DVB ? "dvb" : "blackbird",
611 drv->hw_access == CX8802_DRVCTL_SHARED ?
612 "shared" : "exclusive");
614 err = cx8802_check_driver(drv);
616 pr_err("cx8802_driver is invalid\n");
620 mutex_lock(&cx8802_mutex);
622 list_for_each_entry(dev, &cx8802_devlist, devlist) {
623 pr_info("subsystem: %04x:%04x, board: %s [card=%d]\n",
624 dev->pci->subsystem_vendor,
625 dev->pci->subsystem_device, dev->core->board.name,
628 /* Bring up a new struct for each driver instance */
629 driver = kzalloc(sizeof(*drv), GFP_KERNEL);
635 /* Snapshot of the driver registration data */
636 drv->core = dev->core;
637 drv->suspend = cx8802_suspend_common;
638 drv->resume = cx8802_resume_common;
639 drv->request_acquire = cx8802_request_acquire;
640 drv->request_release = cx8802_request_release;
641 memcpy(driver, drv, sizeof(*driver));
643 mutex_lock(&drv->core->lock);
644 err = drv->probe(driver);
647 list_add_tail(&driver->drvlist, &dev->drvlist);
649 pr_err("cx8802 probe failed, err = %d\n", err);
651 mutex_unlock(&drv->core->lock);
654 err = i ? 0 : -ENODEV;
656 mutex_unlock(&cx8802_mutex);
659 EXPORT_SYMBOL(cx8802_register_driver);
661 int cx8802_unregister_driver(struct cx8802_driver *drv)
663 struct cx8802_dev *dev;
664 struct cx8802_driver *d, *dtmp;
667 pr_info("unregistering cx8802 driver, type: %s access: %s\n",
668 drv->type_id == CX88_MPEG_DVB ? "dvb" : "blackbird",
669 drv->hw_access == CX8802_DRVCTL_SHARED ?
670 "shared" : "exclusive");
672 mutex_lock(&cx8802_mutex);
674 list_for_each_entry(dev, &cx8802_devlist, devlist) {
675 pr_info("subsystem: %04x:%04x, board: %s [card=%d]\n",
676 dev->pci->subsystem_vendor,
677 dev->pci->subsystem_device, dev->core->board.name,
680 mutex_lock(&dev->core->lock);
682 list_for_each_entry_safe(d, dtmp, &dev->drvlist, drvlist) {
683 /* only unregister the correct driver type */
684 if (d->type_id != drv->type_id)
689 list_del(&d->drvlist);
692 pr_err("cx8802 driver remove failed (%d)\n",
696 mutex_unlock(&dev->core->lock);
699 mutex_unlock(&cx8802_mutex);
703 EXPORT_SYMBOL(cx8802_unregister_driver);
705 /* ----------------------------------------------------------- */
706 static int cx8802_probe(struct pci_dev *pci_dev,
707 const struct pci_device_id *pci_id)
709 struct cx8802_dev *dev;
710 struct cx88_core *core;
714 core = cx88_core_get(pci_dev);
718 pr_info("cx2388x 8802 Driver Manager\n");
721 if (!core->board.mpeg)
725 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
731 /* Maintain a reference so cx88-video can query the 8802 device. */
734 err = cx8802_init_common(dev);
738 INIT_LIST_HEAD(&dev->drvlist);
739 mutex_lock(&cx8802_mutex);
740 list_add_tail(&dev->devlist, &cx8802_devlist);
741 mutex_unlock(&cx8802_mutex);
743 /* now autoload cx88-dvb or cx88-blackbird */
744 request_modules(dev);
751 cx88_core_put(core, pci_dev);
755 static void cx8802_remove(struct pci_dev *pci_dev)
757 struct cx8802_dev *dev;
759 dev = pci_get_drvdata(pci_dev);
761 dprintk(1, "%s\n", __func__);
763 flush_request_modules(dev);
765 mutex_lock(&dev->core->lock);
767 if (!list_empty(&dev->drvlist)) {
768 struct cx8802_driver *drv, *tmp;
771 pr_warn("Trying to remove cx8802 driver while cx8802 sub-drivers still loaded?!\n");
773 list_for_each_entry_safe(drv, tmp, &dev->drvlist, drvlist) {
774 err = drv->remove(drv);
776 list_del(&drv->drvlist);
778 pr_err("cx8802 driver remove failed (%d)\n",
784 mutex_unlock(&dev->core->lock);
786 /* Destroy any 8802 reference. */
787 dev->core->dvbdev = NULL;
790 cx8802_fini_common(dev);
791 cx88_core_put(dev->core, dev->pci);
795 static const struct pci_device_id cx8802_pci_tbl[] = {
799 .subvendor = PCI_ANY_ID,
800 .subdevice = PCI_ANY_ID,
802 /* --- end of list --- */
805 MODULE_DEVICE_TABLE(pci, cx8802_pci_tbl);
807 static struct pci_driver cx8802_pci_driver = {
808 .name = "cx88-mpeg driver manager",
809 .id_table = cx8802_pci_tbl,
810 .probe = cx8802_probe,
811 .remove = cx8802_remove,
814 module_pci_driver(cx8802_pci_driver);