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.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 #include <linux/module.h>
26 #include <linux/slab.h>
27 #include <linux/init.h>
28 #include <linux/device.h>
29 #include <linux/dma-mapping.h>
30 #include <linux/interrupt.h>
31 #include <asm/delay.h>
35 /* ------------------------------------------------------------------ */
37 MODULE_DESCRIPTION("mpeg driver for cx2388x based TV cards");
38 MODULE_AUTHOR("Jelle Foks <jelle@foks.us>");
39 MODULE_AUTHOR("Chris Pascoe <c.pascoe@itee.uq.edu.au>");
40 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
41 MODULE_LICENSE("GPL");
42 MODULE_VERSION(CX88_VERSION);
44 static unsigned int debug;
45 module_param(debug,int,0644);
46 MODULE_PARM_DESC(debug,"enable debug messages [mpeg]");
48 #define dprintk(level, fmt, arg...) do { \
49 if (debug + 1 > level) \
50 printk(KERN_DEBUG "%s/2-mpeg: " fmt, dev->core->name, ## arg); \
53 #define mpeg_dbg(level, fmt, arg...) do { \
54 if (debug + 1 > level) \
55 printk(KERN_DEBUG "%s/2-mpeg: " fmt, core->name, ## arg); \
58 #if defined(CONFIG_MODULES) && defined(MODULE)
59 static void request_module_async(struct work_struct *work)
61 struct cx8802_dev *dev=container_of(work, struct cx8802_dev, request_module_wk);
63 if (dev->core->board.mpeg & CX88_MPEG_DVB)
64 request_module("cx88-dvb");
65 if (dev->core->board.mpeg & CX88_MPEG_BLACKBIRD)
66 request_module("cx88-blackbird");
69 static void request_modules(struct cx8802_dev *dev)
71 INIT_WORK(&dev->request_module_wk, request_module_async);
72 schedule_work(&dev->request_module_wk);
75 static void flush_request_modules(struct cx8802_dev *dev)
77 flush_work(&dev->request_module_wk);
80 #define request_modules(dev)
81 #define flush_request_modules(dev)
82 #endif /* CONFIG_MODULES */
85 static LIST_HEAD(cx8802_devlist);
86 static DEFINE_MUTEX(cx8802_mutex);
87 /* ------------------------------------------------------------------ */
89 int cx8802_start_dma(struct cx8802_dev *dev,
90 struct cx88_dmaqueue *q,
91 struct cx88_buffer *buf)
93 struct cx88_core *core = dev->core;
95 dprintk(1, "cx8802_start_dma w: %d, h: %d, f: %d\n",
96 core->width, core->height, core->field);
98 /* setup fifo + format */
99 cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH28],
100 dev->ts_packet_size, buf->risc.dma);
102 /* write TS length to chip */
103 cx_write(MO_TS_LNGTH, dev->ts_packet_size);
105 /* FIXME: this needs a review.
106 * also: move to cx88-blackbird + cx88-dvb source files? */
108 dprintk( 1, "core->active_type_id = 0x%08x\n", core->active_type_id);
110 if ( (core->active_type_id == CX88_MPEG_DVB) &&
111 (core->board.mpeg & CX88_MPEG_DVB) ) {
113 dprintk( 1, "cx8802_start_dma doing .dvb\n");
114 /* negedge driven & software reset */
115 cx_write(TS_GEN_CNTRL, 0x0040 | dev->ts_gen_cntrl);
117 cx_write(MO_PINMUX_IO, 0x00);
118 cx_write(TS_HW_SOP_CNTRL, 0x47<<16|188<<4|0x01);
119 switch (core->boardnr) {
120 case CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD_Q:
121 case CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD_T:
122 case CX88_BOARD_DVICO_FUSIONHDTV_5_GOLD:
123 case CX88_BOARD_PCHDTV_HD5500:
124 cx_write(TS_SOP_STAT, 1<<13);
126 case CX88_BOARD_SAMSUNG_SMT_7020:
127 cx_write(TS_SOP_STAT, 0x00);
129 case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
130 case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
131 cx_write(MO_PINMUX_IO, 0x88); /* Enable MPEG parallel IO and video signal pins */
134 case CX88_BOARD_HAUPPAUGE_HVR1300:
135 /* Enable MPEG parallel IO and video signal pins */
136 cx_write(MO_PINMUX_IO, 0x88);
137 cx_write(TS_SOP_STAT, 0);
138 cx_write(TS_VALERR_CNTRL, 0);
140 case CX88_BOARD_PINNACLE_PCTV_HD_800i:
141 /* Enable MPEG parallel IO and video signal pins */
142 cx_write(MO_PINMUX_IO, 0x88);
143 cx_write(TS_HW_SOP_CNTRL, (0x47 << 16) | (188 << 4));
144 dev->ts_gen_cntrl = 5;
145 cx_write(TS_SOP_STAT, 0);
146 cx_write(TS_VALERR_CNTRL, 0);
150 cx_write(TS_SOP_STAT, 0x00);
153 cx_write(TS_GEN_CNTRL, dev->ts_gen_cntrl);
155 } else if ( (core->active_type_id == CX88_MPEG_BLACKBIRD) &&
156 (core->board.mpeg & CX88_MPEG_BLACKBIRD) ) {
157 dprintk( 1, "cx8802_start_dma doing .blackbird\n");
158 cx_write(MO_PINMUX_IO, 0x88); /* enable MPEG parallel IO */
160 cx_write(TS_GEN_CNTRL, 0x46); /* punctured clock TS & posedge driven & software reset */
163 cx_write(TS_HW_SOP_CNTRL, 0x408); /* mpeg start byte */
164 cx_write(TS_VALERR_CNTRL, 0x2000);
166 cx_write(TS_GEN_CNTRL, 0x06); /* punctured clock TS & posedge driven */
169 printk( "%s() Failed. Unsupported value in .mpeg (0x%08x)\n", __func__,
175 cx_write(MO_TS_GPCNTRL, GP_COUNT_CONTROL_RESET);
179 dprintk( 1, "setting the interrupt mask\n" );
180 cx_set(MO_PCI_INTMSK, core->pci_irqmask | PCI_INT_TSINT);
181 cx_set(MO_TS_INTMSK, 0x1f0011);
184 cx_set(MO_DEV_CNTRL2, (1<<5));
185 cx_set(MO_TS_DMACNTRL, 0x11);
189 static int cx8802_stop_dma(struct cx8802_dev *dev)
191 struct cx88_core *core = dev->core;
192 dprintk( 1, "cx8802_stop_dma\n" );
195 cx_clear(MO_TS_DMACNTRL, 0x11);
198 cx_clear(MO_PCI_INTMSK, PCI_INT_TSINT);
199 cx_clear(MO_TS_INTMSK, 0x1f0011);
201 /* Reset the controller */
202 cx_write(TS_GEN_CNTRL, 0xcd);
206 static int cx8802_restart_queue(struct cx8802_dev *dev,
207 struct cx88_dmaqueue *q)
209 struct cx88_buffer *buf;
211 dprintk( 1, "cx8802_restart_queue\n" );
212 if (list_empty(&q->active))
215 buf = list_entry(q->active.next, struct cx88_buffer, list);
216 dprintk(2,"restart_queue [%p/%d]: restart dma\n",
217 buf, buf->vb.v4l2_buf.index);
218 cx8802_start_dma(dev, q, buf);
222 /* ------------------------------------------------------------------ */
224 int cx8802_buf_prepare(struct vb2_queue *q, struct cx8802_dev *dev,
225 struct cx88_buffer *buf)
227 int size = dev->ts_packet_size * dev->ts_packet_count;
228 struct sg_table *sgt = vb2_dma_sg_plane_desc(&buf->vb, 0);
229 struct cx88_riscmem *risc = &buf->risc;
232 if (vb2_plane_size(&buf->vb, 0) < size)
234 vb2_set_plane_payload(&buf->vb, 0, size);
236 rc = cx88_risc_databuffer(dev->pci, risc, sgt->sgl,
237 dev->ts_packet_size, dev->ts_packet_count, 0);
240 pci_free_consistent(dev->pci, risc->size, risc->cpu, risc->dma);
241 memset(risc, 0, sizeof(*risc));
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;
252 dprintk( 1, "cx8802_buf_queue\n" );
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.v4l2_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.v4l2_buf.index, __func__);
275 /* ----------------------------------------------------------- */
277 static void do_cancel_buffers(struct cx8802_dev *dev)
279 struct cx88_dmaqueue *q = &dev->mpegq;
280 struct cx88_buffer *buf;
283 spin_lock_irqsave(&dev->slock,flags);
284 while (!list_empty(&q->active)) {
285 buf = list_entry(q->active.next, struct cx88_buffer, list);
286 list_del(&buf->list);
287 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
289 spin_unlock_irqrestore(&dev->slock,flags);
292 void cx8802_cancel_buffers(struct cx8802_dev *dev)
294 dprintk( 1, "cx8802_cancel_buffers" );
295 cx8802_stop_dma(dev);
296 do_cancel_buffers(dev);
299 static const char * cx88_mpeg_irqs[32] = {
300 "ts_risci1", NULL, NULL, NULL,
301 "ts_risci2", NULL, NULL, NULL,
302 "ts_oflow", NULL, NULL, NULL,
303 "ts_sync", NULL, NULL, NULL,
304 "opc_err", "par_err", "rip_err", "pci_abort",
308 static void cx8802_mpeg_irq(struct cx8802_dev *dev)
310 struct cx88_core *core = dev->core;
311 u32 status, mask, count;
313 dprintk( 1, "cx8802_mpeg_irq\n" );
314 status = cx_read(MO_TS_INTSTAT);
315 mask = cx_read(MO_TS_INTMSK);
316 if (0 == (status & mask))
319 cx_write(MO_TS_INTSTAT, status);
321 if (debug || (status & mask & ~0xff))
322 cx88_print_irqbits(core->name, "irq mpeg ",
323 cx88_mpeg_irqs, ARRAY_SIZE(cx88_mpeg_irqs),
326 /* risc op code error */
327 if (status & (1 << 16)) {
328 printk(KERN_WARNING "%s: mpeg risc op code error\n",core->name);
329 cx_clear(MO_TS_DMACNTRL, 0x11);
330 cx88_sram_channel_dump(dev->core, &cx88_sram_channels[SRAM_CH28]);
335 dprintk( 1, "wake up\n" );
336 spin_lock(&dev->slock);
337 count = cx_read(MO_TS_GPCNT);
338 cx88_wakeup(dev->core, &dev->mpegq, count);
339 spin_unlock(&dev->slock);
342 /* other general errors */
343 if (status & 0x1f0100) {
344 dprintk( 0, "general errors: 0x%08x\n", status & 0x1f0100 );
345 spin_lock(&dev->slock);
346 cx8802_stop_dma(dev);
347 spin_unlock(&dev->slock);
351 #define MAX_IRQ_LOOP 10
353 static irqreturn_t cx8802_irq(int irq, void *dev_id)
355 struct cx8802_dev *dev = dev_id;
356 struct cx88_core *core = dev->core;
358 int loop, handled = 0;
360 for (loop = 0; loop < MAX_IRQ_LOOP; loop++) {
361 status = cx_read(MO_PCI_INTSTAT) &
362 (core->pci_irqmask | PCI_INT_TSINT);
365 dprintk( 1, "cx8802_irq\n" );
366 dprintk( 1, " loop: %d/%d\n", loop, MAX_IRQ_LOOP );
367 dprintk( 1, " status: %d\n", status );
369 cx_write(MO_PCI_INTSTAT, status);
371 if (status & core->pci_irqmask)
372 cx88_core_irq(core,status);
373 if (status & PCI_INT_TSINT)
374 cx8802_mpeg_irq(dev);
376 if (MAX_IRQ_LOOP == loop) {
377 dprintk( 0, "clearing mask\n" );
378 printk(KERN_WARNING "%s/0: irq loop -- clearing mask\n",
380 cx_write(MO_PCI_INTMSK,0);
384 return IRQ_RETVAL(handled);
387 static int cx8802_init_common(struct cx8802_dev *dev)
389 struct cx88_core *core = dev->core;
393 if (pci_enable_device(dev->pci))
395 pci_set_master(dev->pci);
396 if (!pci_dma_supported(dev->pci,DMA_BIT_MASK(32))) {
397 printk("%s/2: Oops: no 32bit PCI DMA ???\n",dev->core->name);
401 dev->pci_rev = dev->pci->revision;
402 pci_read_config_byte(dev->pci, PCI_LATENCY_TIMER, &dev->pci_lat);
403 printk(KERN_INFO "%s/2: found at %s, rev: %d, irq: %d, "
404 "latency: %d, mmio: 0x%llx\n", dev->core->name,
405 pci_name(dev->pci), dev->pci_rev, dev->pci->irq,
406 dev->pci_lat,(unsigned long long)pci_resource_start(dev->pci,0));
408 /* initialize driver struct */
409 spin_lock_init(&dev->slock);
412 INIT_LIST_HEAD(&dev->mpegq.active);
415 err = request_irq(dev->pci->irq, cx8802_irq,
416 IRQF_SHARED, dev->core->name, dev);
418 printk(KERN_ERR "%s: can't get IRQ %d\n",
419 dev->core->name, dev->pci->irq);
422 cx_set(MO_PCI_INTMSK, core->pci_irqmask);
424 /* everything worked */
425 pci_set_drvdata(dev->pci,dev);
429 static void cx8802_fini_common(struct cx8802_dev *dev)
431 dprintk( 2, "cx8802_fini_common\n" );
432 cx8802_stop_dma(dev);
433 pci_disable_device(dev->pci);
435 /* unregister stuff */
436 free_irq(dev->pci->irq, dev);
439 /* ----------------------------------------------------------- */
441 static int cx8802_suspend_common(struct pci_dev *pci_dev, pm_message_t state)
443 struct cx8802_dev *dev = pci_get_drvdata(pci_dev);
444 struct cx88_core *core = dev->core;
448 spin_lock_irqsave(&dev->slock, flags);
449 if (!list_empty(&dev->mpegq.active)) {
450 dprintk( 2, "suspend\n" );
451 printk("%s: suspend mpeg\n", core->name);
452 cx8802_stop_dma(dev);
454 spin_unlock_irqrestore(&dev->slock, flags);
456 /* FIXME -- shutdown device */
457 cx88_shutdown(dev->core);
459 pci_save_state(pci_dev);
460 if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) {
461 pci_disable_device(pci_dev);
462 dev->state.disabled = 1;
467 static int cx8802_resume_common(struct pci_dev *pci_dev)
469 struct cx8802_dev *dev = pci_get_drvdata(pci_dev);
470 struct cx88_core *core = dev->core;
474 if (dev->state.disabled) {
475 err=pci_enable_device(pci_dev);
477 printk(KERN_ERR "%s: can't enable device\n",
481 dev->state.disabled = 0;
483 err=pci_set_power_state(pci_dev, PCI_D0);
485 printk(KERN_ERR "%s: can't enable device\n",
487 pci_disable_device(pci_dev);
488 dev->state.disabled = 1;
492 pci_restore_state(pci_dev);
494 /* FIXME: re-initialize hardware */
495 cx88_reset(dev->core);
497 /* restart video+vbi capture */
498 spin_lock_irqsave(&dev->slock, flags);
499 if (!list_empty(&dev->mpegq.active)) {
500 printk("%s: resume mpeg\n", core->name);
501 cx8802_restart_queue(dev,&dev->mpegq);
503 spin_unlock_irqrestore(&dev->slock, flags);
508 struct cx8802_driver * cx8802_get_driver(struct cx8802_dev *dev, 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)
519 /* Driver asked for hardware access. */
520 static int cx8802_request_acquire(struct cx8802_driver *drv)
522 struct cx88_core *core = drv->core;
525 /* Fail a request for hardware if the device is busy. */
526 if (core->active_type_id != CX88_BOARD_NONE &&
527 core->active_type_id != drv->type_id)
530 if (drv->type_id == CX88_MPEG_DVB) {
531 /* When switching to DVB, always set the input to the tuner */
532 core->last_analog_input = core->input;
535 i < (sizeof(core->board.input) / sizeof(struct cx88_input));
537 if (core->board.input[i].type == CX88_VMUX_DVB) {
544 if (drv->advise_acquire)
547 if (core->active_type_id == CX88_BOARD_NONE) {
548 core->active_type_id = drv->type_id;
549 drv->advise_acquire(drv);
552 mpeg_dbg(1,"%s() Post acquire GPIO=%x\n", __func__, cx_read(MO_GP0_IO));
558 /* Driver asked to release hardware. */
559 static int cx8802_request_release(struct cx8802_driver *drv)
561 struct cx88_core *core = drv->core;
563 if (drv->advise_release && --core->active_ref == 0)
565 if (drv->type_id == CX88_MPEG_DVB) {
566 /* If the DVB driver is releasing, reset the input
567 state to the last configured analog input */
568 core->input = core->last_analog_input;
571 drv->advise_release(drv);
572 core->active_type_id = CX88_BOARD_NONE;
573 mpeg_dbg(1,"%s() Post release GPIO=%x\n", __func__, cx_read(MO_GP0_IO));
579 static int cx8802_check_driver(struct cx8802_driver *drv)
584 if ((drv->type_id != CX88_MPEG_DVB) &&
585 (drv->type_id != CX88_MPEG_BLACKBIRD))
588 if ((drv->hw_access != CX8802_DRVCTL_SHARED) &&
589 (drv->hw_access != CX8802_DRVCTL_EXCLUSIVE))
592 if ((drv->probe == NULL) ||
593 (drv->remove == NULL) ||
594 (drv->advise_acquire == NULL) ||
595 (drv->advise_release == NULL))
601 int cx8802_register_driver(struct cx8802_driver *drv)
603 struct cx8802_dev *dev;
604 struct cx8802_driver *driver;
608 "cx88/2: registering cx8802 driver, type: %s access: %s\n",
609 drv->type_id == CX88_MPEG_DVB ? "dvb" : "blackbird",
610 drv->hw_access == CX8802_DRVCTL_SHARED ? "shared" : "exclusive");
612 if ((err = cx8802_check_driver(drv)) != 0) {
613 printk(KERN_ERR "cx88/2: cx8802_driver is invalid\n");
617 mutex_lock(&cx8802_mutex);
619 list_for_each_entry(dev, &cx8802_devlist, devlist) {
621 "%s/2: subsystem: %04x:%04x, board: %s [card=%d]\n",
622 dev->core->name, dev->pci->subsystem_vendor,
623 dev->pci->subsystem_device, dev->core->board.name,
626 /* Bring up a new struct for each driver instance */
627 driver = kzalloc(sizeof(*drv),GFP_KERNEL);
628 if (driver == NULL) {
633 /* Snapshot of the driver registration data */
634 drv->core = dev->core;
635 drv->suspend = cx8802_suspend_common;
636 drv->resume = cx8802_resume_common;
637 drv->request_acquire = cx8802_request_acquire;
638 drv->request_release = cx8802_request_release;
639 memcpy(driver, drv, sizeof(*driver));
641 mutex_lock(&drv->core->lock);
642 err = drv->probe(driver);
645 list_add_tail(&driver->drvlist, &dev->drvlist);
648 "%s/2: cx8802 probe failed, err = %d\n",
649 dev->core->name, err);
651 mutex_unlock(&drv->core->lock);
654 err = i ? 0 : -ENODEV;
656 mutex_unlock(&cx8802_mutex);
660 int cx8802_unregister_driver(struct cx8802_driver *drv)
662 struct cx8802_dev *dev;
663 struct cx8802_driver *d, *dtmp;
667 "cx88/2: unregistering cx8802 driver, type: %s access: %s\n",
668 drv->type_id == CX88_MPEG_DVB ? "dvb" : "blackbird",
669 drv->hw_access == CX8802_DRVCTL_SHARED ? "shared" : "exclusive");
671 mutex_lock(&cx8802_mutex);
673 list_for_each_entry(dev, &cx8802_devlist, devlist) {
675 "%s/2: subsystem: %04x:%04x, board: %s [card=%d]\n",
676 dev->core->name, 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 printk(KERN_ERR "%s/2: cx8802 driver remove "
693 "failed (%d)\n", dev->core->name, err);
696 mutex_unlock(&dev->core->lock);
699 mutex_unlock(&cx8802_mutex);
704 /* ----------------------------------------------------------- */
705 static int cx8802_probe(struct pci_dev *pci_dev,
706 const struct pci_device_id *pci_id)
708 struct cx8802_dev *dev;
709 struct cx88_core *core;
713 core = cx88_core_get(pci_dev);
717 printk("%s/2: cx2388x 8802 Driver Manager\n", core->name);
720 if (!core->board.mpeg)
724 dev = kzalloc(sizeof(*dev),GFP_KERNEL);
728 dev->alloc_ctx = vb2_dma_sg_init_ctx(&pci_dev->dev);
729 if (IS_ERR(dev->alloc_ctx)) {
730 err = PTR_ERR(dev->alloc_ctx);
735 /* Maintain a reference so cx88-video can query the 8802 device. */
738 err = cx8802_init_common(dev);
742 INIT_LIST_HEAD(&dev->drvlist);
743 mutex_lock(&cx8802_mutex);
744 list_add_tail(&dev->devlist,&cx8802_devlist);
745 mutex_unlock(&cx8802_mutex);
747 /* now autoload cx88-dvb or cx88-blackbird */
748 request_modules(dev);
752 vb2_dma_sg_cleanup_ctx(dev->alloc_ctx);
757 cx88_core_put(core,pci_dev);
761 static void cx8802_remove(struct pci_dev *pci_dev)
763 struct cx8802_dev *dev;
765 dev = pci_get_drvdata(pci_dev);
767 dprintk( 1, "%s\n", __func__);
769 flush_request_modules(dev);
771 mutex_lock(&dev->core->lock);
773 if (!list_empty(&dev->drvlist)) {
774 struct cx8802_driver *drv, *tmp;
777 printk(KERN_WARNING "%s/2: Trying to remove cx8802 driver "
778 "while cx8802 sub-drivers still loaded?!\n",
781 list_for_each_entry_safe(drv, tmp, &dev->drvlist, drvlist) {
782 err = drv->remove(drv);
784 list_del(&drv->drvlist);
786 printk(KERN_ERR "%s/2: cx8802 driver remove "
787 "failed (%d)\n", dev->core->name, err);
792 mutex_unlock(&dev->core->lock);
794 /* Destroy any 8802 reference. */
795 dev->core->dvbdev = NULL;
798 cx8802_fini_common(dev);
799 cx88_core_put(dev->core,dev->pci);
800 vb2_dma_sg_cleanup_ctx(dev->alloc_ctx);
804 static const struct pci_device_id cx8802_pci_tbl[] = {
808 .subvendor = PCI_ANY_ID,
809 .subdevice = PCI_ANY_ID,
811 /* --- end of list --- */
814 MODULE_DEVICE_TABLE(pci, cx8802_pci_tbl);
816 static struct pci_driver cx8802_pci_driver = {
817 .name = "cx88-mpeg driver manager",
818 .id_table = cx8802_pci_tbl,
819 .probe = cx8802_probe,
820 .remove = cx8802_remove,
823 module_pci_driver(cx8802_pci_driver);
825 EXPORT_SYMBOL(cx8802_buf_prepare);
826 EXPORT_SYMBOL(cx8802_buf_queue);
827 EXPORT_SYMBOL(cx8802_cancel_buffers);
828 EXPORT_SYMBOL(cx8802_start_dma);
830 EXPORT_SYMBOL(cx8802_register_driver);
831 EXPORT_SYMBOL(cx8802_unregister_driver);
832 EXPORT_SYMBOL(cx8802_get_driver);