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);
178 /* clear interrupt status register */
179 cx_write(MO_TS_INTSTAT, 0x1f1111);
182 dprintk( 1, "setting the interrupt mask\n" );
183 cx_set(MO_PCI_INTMSK, core->pci_irqmask | PCI_INT_TSINT);
184 cx_set(MO_TS_INTMSK, 0x1f0011);
187 cx_set(MO_DEV_CNTRL2, (1<<5));
188 cx_set(MO_TS_DMACNTRL, 0x11);
192 static int cx8802_stop_dma(struct cx8802_dev *dev)
194 struct cx88_core *core = dev->core;
195 dprintk( 1, "cx8802_stop_dma\n" );
198 cx_clear(MO_TS_DMACNTRL, 0x11);
201 cx_clear(MO_PCI_INTMSK, PCI_INT_TSINT);
202 cx_clear(MO_TS_INTMSK, 0x1f0011);
204 /* Reset the controller */
205 cx_write(TS_GEN_CNTRL, 0xcd);
209 static int cx8802_restart_queue(struct cx8802_dev *dev,
210 struct cx88_dmaqueue *q)
212 struct cx88_buffer *buf;
214 dprintk( 1, "cx8802_restart_queue\n" );
215 if (list_empty(&q->active))
218 buf = list_entry(q->active.next, struct cx88_buffer, list);
219 dprintk(2,"restart_queue [%p/%d]: restart dma\n",
220 buf, buf->vb.vb2_buf.index);
221 cx8802_start_dma(dev, q, buf);
225 /* ------------------------------------------------------------------ */
227 int cx8802_buf_prepare(struct vb2_queue *q, struct cx8802_dev *dev,
228 struct cx88_buffer *buf)
230 int size = dev->ts_packet_size * dev->ts_packet_count;
231 struct sg_table *sgt = vb2_dma_sg_plane_desc(&buf->vb.vb2_buf, 0);
232 struct cx88_riscmem *risc = &buf->risc;
235 if (vb2_plane_size(&buf->vb.vb2_buf, 0) < size)
237 vb2_set_plane_payload(&buf->vb.vb2_buf, 0, size);
239 rc = cx88_risc_databuffer(dev->pci, risc, sgt->sgl,
240 dev->ts_packet_size, dev->ts_packet_count, 0);
243 pci_free_consistent(dev->pci, risc->size, risc->cpu, risc->dma);
244 memset(risc, 0, sizeof(*risc));
250 void cx8802_buf_queue(struct cx8802_dev *dev, struct cx88_buffer *buf)
252 struct cx88_buffer *prev;
253 struct cx88_dmaqueue *cx88q = &dev->mpegq;
255 dprintk( 1, "cx8802_buf_queue\n" );
256 /* add jump to start */
257 buf->risc.cpu[1] = cpu_to_le32(buf->risc.dma + 8);
258 buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_CNT_INC);
259 buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma + 8);
261 if (list_empty(&cx88q->active)) {
262 dprintk( 1, "queue is empty - first active\n" );
263 list_add_tail(&buf->list, &cx88q->active);
264 dprintk(1,"[%p/%d] %s - first active\n",
265 buf, buf->vb.vb2_buf.index, __func__);
268 buf->risc.cpu[0] |= cpu_to_le32(RISC_IRQ1);
269 dprintk( 1, "queue is not empty - append to active\n" );
270 prev = list_entry(cx88q->active.prev, struct cx88_buffer, list);
271 list_add_tail(&buf->list, &cx88q->active);
272 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
273 dprintk( 1, "[%p/%d] %s - append to active\n",
274 buf, buf->vb.vb2_buf.index, __func__);
278 /* ----------------------------------------------------------- */
280 static void do_cancel_buffers(struct cx8802_dev *dev)
282 struct cx88_dmaqueue *q = &dev->mpegq;
283 struct cx88_buffer *buf;
286 spin_lock_irqsave(&dev->slock,flags);
287 while (!list_empty(&q->active)) {
288 buf = list_entry(q->active.next, struct cx88_buffer, list);
289 list_del(&buf->list);
290 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
292 spin_unlock_irqrestore(&dev->slock,flags);
295 void cx8802_cancel_buffers(struct cx8802_dev *dev)
297 dprintk( 1, "cx8802_cancel_buffers" );
298 cx8802_stop_dma(dev);
299 do_cancel_buffers(dev);
302 static const char * cx88_mpeg_irqs[32] = {
303 "ts_risci1", NULL, NULL, NULL,
304 "ts_risci2", NULL, NULL, NULL,
305 "ts_oflow", NULL, NULL, NULL,
306 "ts_sync", NULL, NULL, NULL,
307 "opc_err", "par_err", "rip_err", "pci_abort",
311 static void cx8802_mpeg_irq(struct cx8802_dev *dev)
313 struct cx88_core *core = dev->core;
314 u32 status, mask, count;
316 dprintk( 1, "cx8802_mpeg_irq\n" );
317 status = cx_read(MO_TS_INTSTAT);
318 mask = cx_read(MO_TS_INTMSK);
319 if (0 == (status & mask))
322 cx_write(MO_TS_INTSTAT, status);
324 if (debug || (status & mask & ~0xff))
325 cx88_print_irqbits(core->name, "irq mpeg ",
326 cx88_mpeg_irqs, ARRAY_SIZE(cx88_mpeg_irqs),
329 /* risc op code error */
330 if (status & (1 << 16)) {
331 printk(KERN_WARNING "%s: mpeg risc op code error\n",core->name);
332 cx_clear(MO_TS_DMACNTRL, 0x11);
333 cx88_sram_channel_dump(dev->core, &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 (MAX_IRQ_LOOP == loop) {
380 dprintk( 0, "clearing mask\n" );
381 printk(KERN_WARNING "%s/0: irq loop -- clearing mask\n",
383 cx_write(MO_PCI_INTMSK,0);
387 return IRQ_RETVAL(handled);
390 static int cx8802_init_common(struct cx8802_dev *dev)
392 struct cx88_core *core = dev->core;
396 if (pci_enable_device(dev->pci))
398 pci_set_master(dev->pci);
399 err = pci_set_dma_mask(dev->pci,DMA_BIT_MASK(32));
401 printk("%s/2: Oops: no 32bit PCI DMA ???\n",dev->core->name);
405 dev->pci_rev = dev->pci->revision;
406 pci_read_config_byte(dev->pci, PCI_LATENCY_TIMER, &dev->pci_lat);
407 printk(KERN_INFO "%s/2: found at %s, rev: %d, irq: %d, "
408 "latency: %d, mmio: 0x%llx\n", dev->core->name,
409 pci_name(dev->pci), dev->pci_rev, dev->pci->irq,
410 dev->pci_lat,(unsigned long long)pci_resource_start(dev->pci,0));
412 /* initialize driver struct */
413 spin_lock_init(&dev->slock);
416 INIT_LIST_HEAD(&dev->mpegq.active);
419 err = request_irq(dev->pci->irq, cx8802_irq,
420 IRQF_SHARED, dev->core->name, dev);
422 printk(KERN_ERR "%s: can't get IRQ %d\n",
423 dev->core->name, dev->pci->irq);
426 cx_set(MO_PCI_INTMSK, core->pci_irqmask);
428 /* everything worked */
429 pci_set_drvdata(dev->pci,dev);
433 static void cx8802_fini_common(struct cx8802_dev *dev)
435 dprintk( 2, "cx8802_fini_common\n" );
436 cx8802_stop_dma(dev);
437 pci_disable_device(dev->pci);
439 /* unregister stuff */
440 free_irq(dev->pci->irq, dev);
443 /* ----------------------------------------------------------- */
445 static int cx8802_suspend_common(struct pci_dev *pci_dev, pm_message_t state)
447 struct cx8802_dev *dev = pci_get_drvdata(pci_dev);
448 struct cx88_core *core = dev->core;
452 spin_lock_irqsave(&dev->slock, flags);
453 if (!list_empty(&dev->mpegq.active)) {
454 dprintk( 2, "suspend\n" );
455 printk("%s: suspend mpeg\n", core->name);
456 cx8802_stop_dma(dev);
458 spin_unlock_irqrestore(&dev->slock, flags);
460 /* FIXME -- shutdown device */
461 cx88_shutdown(dev->core);
463 pci_save_state(pci_dev);
464 if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) {
465 pci_disable_device(pci_dev);
466 dev->state.disabled = 1;
471 static int cx8802_resume_common(struct pci_dev *pci_dev)
473 struct cx8802_dev *dev = pci_get_drvdata(pci_dev);
474 struct cx88_core *core = dev->core;
478 if (dev->state.disabled) {
479 err=pci_enable_device(pci_dev);
481 printk(KERN_ERR "%s: can't enable device\n",
485 dev->state.disabled = 0;
487 err=pci_set_power_state(pci_dev, PCI_D0);
489 printk(KERN_ERR "%s: can't enable device\n",
491 pci_disable_device(pci_dev);
492 dev->state.disabled = 1;
496 pci_restore_state(pci_dev);
498 /* FIXME: re-initialize hardware */
499 cx88_reset(dev->core);
501 /* restart video+vbi capture */
502 spin_lock_irqsave(&dev->slock, flags);
503 if (!list_empty(&dev->mpegq.active)) {
504 printk("%s: resume mpeg\n", core->name);
505 cx8802_restart_queue(dev,&dev->mpegq);
507 spin_unlock_irqrestore(&dev->slock, flags);
512 struct cx8802_driver * cx8802_get_driver(struct cx8802_dev *dev, enum cx88_board_type btype)
514 struct cx8802_driver *d;
516 list_for_each_entry(d, &dev->drvlist, drvlist)
517 if (d->type_id == btype)
523 /* Driver asked for hardware access. */
524 static int cx8802_request_acquire(struct cx8802_driver *drv)
526 struct cx88_core *core = drv->core;
529 /* Fail a request for hardware if the device is busy. */
530 if (core->active_type_id != CX88_BOARD_NONE &&
531 core->active_type_id != drv->type_id)
534 if (drv->type_id == CX88_MPEG_DVB) {
535 /* When switching to DVB, always set the input to the tuner */
536 core->last_analog_input = core->input;
539 i < (sizeof(core->board.input) / sizeof(struct cx88_input));
541 if (core->board.input[i].type == CX88_VMUX_DVB) {
548 if (drv->advise_acquire)
551 if (core->active_type_id == CX88_BOARD_NONE) {
552 core->active_type_id = drv->type_id;
553 drv->advise_acquire(drv);
556 mpeg_dbg(1,"%s() Post acquire GPIO=%x\n", __func__, cx_read(MO_GP0_IO));
562 /* Driver asked to release hardware. */
563 static int cx8802_request_release(struct cx8802_driver *drv)
565 struct cx88_core *core = drv->core;
567 if (drv->advise_release && --core->active_ref == 0)
569 if (drv->type_id == CX88_MPEG_DVB) {
570 /* If the DVB driver is releasing, reset the input
571 state to the last configured analog input */
572 core->input = core->last_analog_input;
575 drv->advise_release(drv);
576 core->active_type_id = CX88_BOARD_NONE;
577 mpeg_dbg(1,"%s() Post release GPIO=%x\n", __func__, cx_read(MO_GP0_IO));
583 static int cx8802_check_driver(struct cx8802_driver *drv)
588 if ((drv->type_id != CX88_MPEG_DVB) &&
589 (drv->type_id != CX88_MPEG_BLACKBIRD))
592 if ((drv->hw_access != CX8802_DRVCTL_SHARED) &&
593 (drv->hw_access != CX8802_DRVCTL_EXCLUSIVE))
596 if ((drv->probe == NULL) ||
597 (drv->remove == NULL) ||
598 (drv->advise_acquire == NULL) ||
599 (drv->advise_release == NULL))
605 int cx8802_register_driver(struct cx8802_driver *drv)
607 struct cx8802_dev *dev;
608 struct cx8802_driver *driver;
612 "cx88/2: registering cx8802 driver, type: %s access: %s\n",
613 drv->type_id == CX88_MPEG_DVB ? "dvb" : "blackbird",
614 drv->hw_access == CX8802_DRVCTL_SHARED ? "shared" : "exclusive");
616 if ((err = cx8802_check_driver(drv)) != 0) {
617 printk(KERN_ERR "cx88/2: cx8802_driver is invalid\n");
621 mutex_lock(&cx8802_mutex);
623 list_for_each_entry(dev, &cx8802_devlist, devlist) {
625 "%s/2: subsystem: %04x:%04x, board: %s [card=%d]\n",
626 dev->core->name, dev->pci->subsystem_vendor,
627 dev->pci->subsystem_device, dev->core->board.name,
630 /* Bring up a new struct for each driver instance */
631 driver = kzalloc(sizeof(*drv),GFP_KERNEL);
632 if (driver == NULL) {
637 /* Snapshot of the driver registration data */
638 drv->core = dev->core;
639 drv->suspend = cx8802_suspend_common;
640 drv->resume = cx8802_resume_common;
641 drv->request_acquire = cx8802_request_acquire;
642 drv->request_release = cx8802_request_release;
643 memcpy(driver, drv, sizeof(*driver));
645 mutex_lock(&drv->core->lock);
646 err = drv->probe(driver);
649 list_add_tail(&driver->drvlist, &dev->drvlist);
652 "%s/2: cx8802 probe failed, err = %d\n",
653 dev->core->name, err);
655 mutex_unlock(&drv->core->lock);
658 err = i ? 0 : -ENODEV;
660 mutex_unlock(&cx8802_mutex);
664 int cx8802_unregister_driver(struct cx8802_driver *drv)
666 struct cx8802_dev *dev;
667 struct cx8802_driver *d, *dtmp;
671 "cx88/2: unregistering cx8802 driver, type: %s access: %s\n",
672 drv->type_id == CX88_MPEG_DVB ? "dvb" : "blackbird",
673 drv->hw_access == CX8802_DRVCTL_SHARED ? "shared" : "exclusive");
675 mutex_lock(&cx8802_mutex);
677 list_for_each_entry(dev, &cx8802_devlist, devlist) {
679 "%s/2: subsystem: %04x:%04x, board: %s [card=%d]\n",
680 dev->core->name, dev->pci->subsystem_vendor,
681 dev->pci->subsystem_device, dev->core->board.name,
684 mutex_lock(&dev->core->lock);
686 list_for_each_entry_safe(d, dtmp, &dev->drvlist, drvlist) {
687 /* only unregister the correct driver type */
688 if (d->type_id != drv->type_id)
693 list_del(&d->drvlist);
696 printk(KERN_ERR "%s/2: cx8802 driver remove "
697 "failed (%d)\n", dev->core->name, err);
700 mutex_unlock(&dev->core->lock);
703 mutex_unlock(&cx8802_mutex);
708 /* ----------------------------------------------------------- */
709 static int cx8802_probe(struct pci_dev *pci_dev,
710 const struct pci_device_id *pci_id)
712 struct cx8802_dev *dev;
713 struct cx88_core *core;
717 core = cx88_core_get(pci_dev);
721 printk("%s/2: cx2388x 8802 Driver Manager\n", core->name);
724 if (!core->board.mpeg)
728 dev = kzalloc(sizeof(*dev),GFP_KERNEL);
734 /* Maintain a reference so cx88-video can query the 8802 device. */
737 err = cx8802_init_common(dev);
741 INIT_LIST_HEAD(&dev->drvlist);
742 mutex_lock(&cx8802_mutex);
743 list_add_tail(&dev->devlist,&cx8802_devlist);
744 mutex_unlock(&cx8802_mutex);
746 /* now autoload cx88-dvb or cx88-blackbird */
747 request_modules(dev);
754 cx88_core_put(core,pci_dev);
758 static void cx8802_remove(struct pci_dev *pci_dev)
760 struct cx8802_dev *dev;
762 dev = pci_get_drvdata(pci_dev);
764 dprintk( 1, "%s\n", __func__);
766 flush_request_modules(dev);
768 mutex_lock(&dev->core->lock);
770 if (!list_empty(&dev->drvlist)) {
771 struct cx8802_driver *drv, *tmp;
774 printk(KERN_WARNING "%s/2: Trying to remove cx8802 driver "
775 "while cx8802 sub-drivers still loaded?!\n",
778 list_for_each_entry_safe(drv, tmp, &dev->drvlist, drvlist) {
779 err = drv->remove(drv);
781 list_del(&drv->drvlist);
783 printk(KERN_ERR "%s/2: cx8802 driver remove "
784 "failed (%d)\n", dev->core->name, err);
789 mutex_unlock(&dev->core->lock);
791 /* Destroy any 8802 reference. */
792 dev->core->dvbdev = NULL;
795 cx8802_fini_common(dev);
796 cx88_core_put(dev->core,dev->pci);
800 static const struct pci_device_id cx8802_pci_tbl[] = {
804 .subvendor = PCI_ANY_ID,
805 .subdevice = PCI_ANY_ID,
807 /* --- end of list --- */
810 MODULE_DEVICE_TABLE(pci, cx8802_pci_tbl);
812 static struct pci_driver cx8802_pci_driver = {
813 .name = "cx88-mpeg driver manager",
814 .id_table = cx8802_pci_tbl,
815 .probe = cx8802_probe,
816 .remove = cx8802_remove,
819 module_pci_driver(cx8802_pci_driver);
821 EXPORT_SYMBOL(cx8802_buf_prepare);
822 EXPORT_SYMBOL(cx8802_buf_queue);
823 EXPORT_SYMBOL(cx8802_cancel_buffers);
824 EXPORT_SYMBOL(cx8802_start_dma);
826 EXPORT_SYMBOL(cx8802_register_driver);
827 EXPORT_SYMBOL(cx8802_unregister_driver);
828 EXPORT_SYMBOL(cx8802_get_driver);