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allow coexistance of N build and AC build.
[tomato.git] / release / src-rt-6.x / linux / linux-2.6 / drivers / media / video / cx88 / cx88-mpeg.c
blobc36e2b7172e9a42ca3130b1caa0357eee004b089
1 /*
2 *
3 * Support for the mpeg transport stream transfers
4 * PCI function #2 of the cx2388x.
5 *
6 * (c) 2004 Jelle Foks <jelle@foks.8m.com>
7 * (c) 2004 Chris Pascoe <c.pascoe@itee.uq.edu.au>
8 * (c) 2004 Gerd Knorr <kraxel@bytesex.org>
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 * 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.
23 */
24
25 #include <linux/module.h>
26 #include <linux/moduleparam.h>
27 #include <linux/init.h>
28 #include <linux/device.h>
29 #include <linux/dma-mapping.h>
30 #include <linux/interrupt.h>
31 #include <linux/dma-mapping.h>
32 #include <asm/delay.h>
33
34 #include "cx88.h"
35
36 /* ------------------------------------------------------------------ */
37
38 MODULE_DESCRIPTION("mpeg driver for cx2388x based TV cards");
39 MODULE_AUTHOR("Jelle Foks <jelle@foks.8m.com>");
40 MODULE_AUTHOR("Chris Pascoe <c.pascoe@itee.uq.edu.au>");
41 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
42 MODULE_LICENSE("GPL");
43
44 static unsigned int debug = 0;
45 module_param(debug,int,0644);
46 MODULE_PARM_DESC(debug,"enable debug messages [mpeg]");
47
48 #define dprintk(level,fmt, arg...) if (debug >= level) \
49 printk(KERN_DEBUG "%s/2-mpeg: " fmt, dev->core->name, ## arg)
50
51 #define mpeg_dbg(level,fmt, arg...) if (debug >= level) \
52 printk(KERN_DEBUG "%s/2-mpeg: " fmt, core->name, ## arg)
53
54 #if defined(CONFIG_MODULES) && defined(MODULE)
55 static void request_module_async(struct work_struct *work)
56 {
57 struct cx8802_dev *dev=container_of(work, struct cx8802_dev, request_module_wk);
58
59 if (cx88_boards[dev->core->board].mpeg & CX88_MPEG_DVB)
60 request_module("cx88-dvb");
61 if (cx88_boards[dev->core->board].mpeg & CX88_MPEG_BLACKBIRD)
62 request_module("cx88-blackbird");
63 }
64
65 static void request_modules(struct cx8802_dev *dev)
66 {
67 INIT_WORK(&dev->request_module_wk, request_module_async);
68 schedule_work(&dev->request_module_wk);
69 }
70 #else
71 #define request_modules(dev)
72 #endif /* CONFIG_MODULES */
73
74
75 static LIST_HEAD(cx8802_devlist);
76 /* ------------------------------------------------------------------ */
77
78 static int cx8802_start_dma(struct cx8802_dev *dev,
79 struct cx88_dmaqueue *q,
80 struct cx88_buffer *buf)
81 {
82 struct cx88_core *core = dev->core;
83
84 dprintk(1, "cx8802_start_dma w: %d, h: %d, f: %d\n", dev->width, dev->height, buf->vb.field);
85
86 /* setup fifo + format */
87 cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH28],
88 dev->ts_packet_size, buf->risc.dma);
89
90 /* write TS length to chip */
91 cx_write(MO_TS_LNGTH, buf->vb.width);
92
93 /* FIXME: this needs a review.
94 * also: move to cx88-blackbird + cx88-dvb source files? */
95
96 dprintk( 1, "core->active_type_id = 0x%08x\n", core->active_type_id);
97
98 if ( (core->active_type_id == CX88_MPEG_DVB) &&
99 (cx88_boards[core->board].mpeg & CX88_MPEG_DVB) ) {
100
101 dprintk( 1, "cx8802_start_dma doing .dvb\n");
102 /* negedge driven & software reset */
103 cx_write(TS_GEN_CNTRL, 0x0040 | dev->ts_gen_cntrl);
104 udelay(100);
105 cx_write(MO_PINMUX_IO, 0x00);
106 cx_write(TS_HW_SOP_CNTRL,0x47<<16|188<<4|0x01);
107 switch (core->board) {
108 case CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD_Q:
109 case CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD_T:
110 case CX88_BOARD_DVICO_FUSIONHDTV_5_GOLD:
111 case CX88_BOARD_PCHDTV_HD5500:
112 cx_write(TS_SOP_STAT, 1<<13);
113 break;
114 case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
115 case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
116 cx_write(MO_PINMUX_IO, 0x88); /* Enable MPEG parallel IO and video signal pins */
117 udelay(100);
118 break;
119 case CX88_BOARD_HAUPPAUGE_HVR1300:
120 break;
121 default:
122 cx_write(TS_SOP_STAT, 0x00);
123 break;
124 }
125 cx_write(TS_GEN_CNTRL, dev->ts_gen_cntrl);
126 udelay(100);
127 } else if ( (core->active_type_id == CX88_MPEG_BLACKBIRD) &&
128 (cx88_boards[core->board].mpeg & CX88_MPEG_BLACKBIRD) ) {
129 dprintk( 1, "cx8802_start_dma doing .blackbird\n");
130 cx_write(MO_PINMUX_IO, 0x88); /* enable MPEG parallel IO */
131
132 cx_write(TS_GEN_CNTRL, 0x46); /* punctured clock TS & posedge driven & software reset */
133 udelay(100);
134
135 cx_write(TS_HW_SOP_CNTRL, 0x408); /* mpeg start byte */
136 cx_write(TS_VALERR_CNTRL, 0x2000);
137
138 cx_write(TS_GEN_CNTRL, 0x06); /* punctured clock TS & posedge driven */
139 udelay(100);
140 } else {
141 printk( "%s() Failed. Unsupported value in .mpeg (0x%08x)\n", __FUNCTION__,
142 cx88_boards[core->board].mpeg );
143 return -EINVAL;
144 }
145
146 /* reset counter */
147 cx_write(MO_TS_GPCNTRL, GP_COUNT_CONTROL_RESET);
148 q->count = 1;
149
150 /* enable irqs */
151 dprintk( 1, "setting the interrupt mask\n" );
152 cx_set(MO_PCI_INTMSK, core->pci_irqmask | 0x04);
153 cx_set(MO_TS_INTMSK, 0x1f0011);
154
155 /* start dma */
156 cx_set(MO_DEV_CNTRL2, (1<<5));
157 cx_set(MO_TS_DMACNTRL, 0x11);
158 return 0;
159 }
160
161 static int cx8802_stop_dma(struct cx8802_dev *dev)
162 {
163 struct cx88_core *core = dev->core;
164 dprintk( 1, "cx8802_stop_dma\n" );
165
166 /* stop dma */
167 cx_clear(MO_TS_DMACNTRL, 0x11);
168
169 /* disable irqs */
170 cx_clear(MO_PCI_INTMSK, 0x000004);
171 cx_clear(MO_TS_INTMSK, 0x1f0011);
172
173 /* Reset the controller */
174 cx_write(TS_GEN_CNTRL, 0xcd);
175 return 0;
176 }
177
178 static int cx8802_restart_queue(struct cx8802_dev *dev,
179 struct cx88_dmaqueue *q)
180 {
181 struct cx88_buffer *buf;
182 struct list_head *item;
183
184 dprintk( 1, "cx8802_restart_queue\n" );
185 if (list_empty(&q->active))
186 {
187 struct cx88_buffer *prev;
188 prev = NULL;
189
190 dprintk(1, "cx8802_restart_queue: queue is empty\n" );
191
192 for (;;) {
193 if (list_empty(&q->queued))
194 return 0;
195 buf = list_entry(q->queued.next, struct cx88_buffer, vb.queue);
196 if (NULL == prev) {
197 list_del(&buf->vb.queue);
198 list_add_tail(&buf->vb.queue,&q->active);
199 cx8802_start_dma(dev, q, buf);
200 buf->vb.state = STATE_ACTIVE;
201 buf->count = q->count++;
202 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
203 dprintk(1,"[%p/%d] restart_queue - first active\n",
204 buf,buf->vb.i);
205
206 } else if (prev->vb.width == buf->vb.width &&
207 prev->vb.height == buf->vb.height &&
208 prev->fmt == buf->fmt) {
209 list_del(&buf->vb.queue);
210 list_add_tail(&buf->vb.queue,&q->active);
211 buf->vb.state = STATE_ACTIVE;
212 buf->count = q->count++;
213 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
214 dprintk(1,"[%p/%d] restart_queue - move to active\n",
215 buf,buf->vb.i);
216 } else {
217 return 0;
218 }
219 prev = buf;
220 }
221 return 0;
222 }
223
224 buf = list_entry(q->active.next, struct cx88_buffer, vb.queue);
225 dprintk(2,"restart_queue [%p/%d]: restart dma\n",
226 buf, buf->vb.i);
227 cx8802_start_dma(dev, q, buf);
228 list_for_each(item,&q->active) {
229 buf = list_entry(item, struct cx88_buffer, vb.queue);
230 buf->count = q->count++;
231 }
232 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
233 return 0;
234 }
235
236 /* ------------------------------------------------------------------ */
237
238 int cx8802_buf_prepare(struct videobuf_queue *q, struct cx8802_dev *dev,
239 struct cx88_buffer *buf, enum v4l2_field field)
240 {
241 int size = dev->ts_packet_size * dev->ts_packet_count;
242 int rc;
243
244 dprintk(1, "%s: %p\n", __FUNCTION__, buf);
245 if (0 != buf->vb.baddr && buf->vb.bsize < size)
246 return -EINVAL;
247
248 if (STATE_NEEDS_INIT == buf->vb.state) {
249 buf->vb.width = dev->ts_packet_size;
250 buf->vb.height = dev->ts_packet_count;
251 buf->vb.size = size;
252 buf->vb.field = field /*V4L2_FIELD_TOP*/;
253
254 if (0 != (rc = videobuf_iolock(q,&buf->vb,NULL)))
255 goto fail;
256 cx88_risc_databuffer(dev->pci, &buf->risc,
257 buf->vb.dma.sglist,
258 buf->vb.width, buf->vb.height);
259 }
260 buf->vb.state = STATE_PREPARED;
261 return 0;
262
263 fail:
264 cx88_free_buffer(q,buf);
265 return rc;
266 }
267
268 void cx8802_buf_queue(struct cx8802_dev *dev, struct cx88_buffer *buf)
269 {
270 struct cx88_buffer *prev;
271 struct cx88_dmaqueue *cx88q = &dev->mpegq;
272
273 dprintk( 1, "cx8802_buf_queue\n" );
274 /* add jump to stopper */
275 buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
276 buf->risc.jmp[1] = cpu_to_le32(cx88q->stopper.dma);
277
278 if (list_empty(&cx88q->active)) {
279 dprintk( 1, "queue is empty - first active\n" );
280 list_add_tail(&buf->vb.queue,&cx88q->active);
281 cx8802_start_dma(dev, cx88q, buf);
282 buf->vb.state = STATE_ACTIVE;
283 buf->count = cx88q->count++;
284 mod_timer(&cx88q->timeout, jiffies+BUFFER_TIMEOUT);
285 dprintk(1,"[%p/%d] %s - first active\n",
286 buf, buf->vb.i, __FUNCTION__);
287
288 } else {
289 dprintk( 1, "queue is not empty - append to active\n" );
290 prev = list_entry(cx88q->active.prev, struct cx88_buffer, vb.queue);
291 list_add_tail(&buf->vb.queue,&cx88q->active);
292 buf->vb.state = STATE_ACTIVE;
293 buf->count = cx88q->count++;
294 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
295 dprintk( 1, "[%p/%d] %s - append to active\n",
296 buf, buf->vb.i, __FUNCTION__);
297 }
298 }
299
300 /* ----------------------------------------------------------- */
301
302 static void do_cancel_buffers(struct cx8802_dev *dev, char *reason, int restart)
303 {
304 struct cx88_dmaqueue *q = &dev->mpegq;
305 struct cx88_buffer *buf;
306 unsigned long flags;
307
308 spin_lock_irqsave(&dev->slock,flags);
309 while (!list_empty(&q->active)) {
310 buf = list_entry(q->active.next, struct cx88_buffer, vb.queue);
311 list_del(&buf->vb.queue);
312 buf->vb.state = STATE_ERROR;
313 wake_up(&buf->vb.done);
314 dprintk(1,"[%p/%d] %s - dma=0x%08lx\n",
315 buf, buf->vb.i, reason, (unsigned long)buf->risc.dma);
316 }
317 if (restart)
318 {
319 dprintk(1, "restarting queue\n" );
320 cx8802_restart_queue(dev,q);
321 }
322 spin_unlock_irqrestore(&dev->slock,flags);
323 }
324
325 void cx8802_cancel_buffers(struct cx8802_dev *dev)
326 {
327 struct cx88_dmaqueue *q = &dev->mpegq;
328
329 dprintk( 1, "cx8802_cancel_buffers" );
330 del_timer_sync(&q->timeout);
331 cx8802_stop_dma(dev);
332 do_cancel_buffers(dev,"cancel",0);
333 }
334
335 static void cx8802_timeout(unsigned long data)
336 {
337 struct cx8802_dev *dev = (struct cx8802_dev*)data;
338
339 dprintk(0, "%s\n",__FUNCTION__);
340
341 if (debug)
342 cx88_sram_channel_dump(dev->core, &cx88_sram_channels[SRAM_CH28]);
343 cx8802_stop_dma(dev);
344 do_cancel_buffers(dev,"timeout",1);
345 }
346
347 static char *cx88_mpeg_irqs[32] = {
348 "ts_risci1", NULL, NULL, NULL,
349 "ts_risci2", NULL, NULL, NULL,
350 "ts_oflow", NULL, NULL, NULL,
351 "ts_sync", NULL, NULL, NULL,
352 "opc_err", "par_err", "rip_err", "pci_abort",
353 "ts_err?",
354 };
355
356 static void cx8802_mpeg_irq(struct cx8802_dev *dev)
357 {
358 struct cx88_core *core = dev->core;
359 u32 status, mask, count;
360
361 dprintk( 1, "cx8802_mpeg_irq\n" );
362 status = cx_read(MO_TS_INTSTAT);
363 mask = cx_read(MO_TS_INTMSK);
364 if (0 == (status & mask))
365 return;
366
367 cx_write(MO_TS_INTSTAT, status);
368
369 if (debug || (status & mask & ~0xff))
370 cx88_print_irqbits(core->name, "irq mpeg ",
371 cx88_mpeg_irqs, ARRAY_SIZE(cx88_mpeg_irqs),
372 status, mask);
373
374 /* risc op code error */
375 if (status & (1 << 16)) {
376 printk(KERN_WARNING "%s: mpeg risc op code error\n",core->name);
377 cx_clear(MO_TS_DMACNTRL, 0x11);
378 cx88_sram_channel_dump(dev->core, &cx88_sram_channels[SRAM_CH28]);
379 }
380
381 /* risc1 y */
382 if (status & 0x01) {
383 dprintk( 1, "wake up\n" );
384 spin_lock(&dev->slock);
385 count = cx_read(MO_TS_GPCNT);
386 cx88_wakeup(dev->core, &dev->mpegq, count);
387 spin_unlock(&dev->slock);
388 }
389
390 /* risc2 y */
391 if (status & 0x10) {
392 spin_lock(&dev->slock);
393 cx8802_restart_queue(dev,&dev->mpegq);
394 spin_unlock(&dev->slock);
395 }
396
397 /* other general errors */
398 if (status & 0x1f0100) {
399 dprintk( 0, "general errors: 0x%08x\n", status & 0x1f0100 );
400 spin_lock(&dev->slock);
401 cx8802_stop_dma(dev);
402 cx8802_restart_queue(dev,&dev->mpegq);
403 spin_unlock(&dev->slock);
404 }
405 }
406
407 #define MAX_IRQ_LOOP 10
408
409 static irqreturn_t cx8802_irq(int irq, void *dev_id)
410 {
411 struct cx8802_dev *dev = dev_id;
412 struct cx88_core *core = dev->core;
413 u32 status;
414 int loop, handled = 0;
415
416 for (loop = 0; loop < MAX_IRQ_LOOP; loop++) {
417 status = cx_read(MO_PCI_INTSTAT) & (core->pci_irqmask | 0x04);
418 if (0 == status)
419 goto out;
420 dprintk( 1, "cx8802_irq\n" );
421 dprintk( 1, " loop: %d/%d\n", loop, MAX_IRQ_LOOP );
422 dprintk( 1, " status: %d\n", status );
423 handled = 1;
424 cx_write(MO_PCI_INTSTAT, status);
425
426 if (status & core->pci_irqmask)
427 cx88_core_irq(core,status);
428 if (status & 0x04)
429 cx8802_mpeg_irq(dev);
430 };
431 if (MAX_IRQ_LOOP == loop) {
432 dprintk( 0, "clearing mask\n" );
433 printk(KERN_WARNING "%s/0: irq loop -- clearing mask\n",
434 core->name);
435 cx_write(MO_PCI_INTMSK,0);
436 }
437
438 out:
439 return IRQ_RETVAL(handled);
440 }
441
442 /* ----------------------------------------------------------- */
443 /* exported stuff */
444
445 int cx8802_init_common(struct cx8802_dev *dev)
446 {
447 struct cx88_core *core = dev->core;
448 int err;
449
450 /* pci init */
451 if (pci_enable_device(dev->pci))
452 return -EIO;
453 pci_set_master(dev->pci);
454 if (!pci_dma_supported(dev->pci,DMA_32BIT_MASK)) {
455 printk("%s/2: Oops: no 32bit PCI DMA ???\n",dev->core->name);
456 return -EIO;
457 }
458
459 pci_read_config_byte(dev->pci, PCI_CLASS_REVISION, &dev->pci_rev);
460 pci_read_config_byte(dev->pci, PCI_LATENCY_TIMER, &dev->pci_lat);
461 printk(KERN_INFO "%s/2: found at %s, rev: %d, irq: %d, "
462 "latency: %d, mmio: 0x%llx\n", dev->core->name,
463 pci_name(dev->pci), dev->pci_rev, dev->pci->irq,
464 dev->pci_lat,(unsigned long long)pci_resource_start(dev->pci,0));
465
466 /* initialize driver struct */
467 spin_lock_init(&dev->slock);
468
469 /* init dma queue */
470 INIT_LIST_HEAD(&dev->mpegq.active);
471 INIT_LIST_HEAD(&dev->mpegq.queued);
472 dev->mpegq.timeout.function = cx8802_timeout;
473 dev->mpegq.timeout.data = (unsigned long)dev;
474 init_timer(&dev->mpegq.timeout);
475 cx88_risc_stopper(dev->pci,&dev->mpegq.stopper,
476 MO_TS_DMACNTRL,0x11,0x00);
477
478 /* get irq */
479 err = request_irq(dev->pci->irq, cx8802_irq,
480 IRQF_SHARED | IRQF_DISABLED, dev->core->name, dev);
481 if (err < 0) {
482 printk(KERN_ERR "%s: can't get IRQ %d\n",
483 dev->core->name, dev->pci->irq);
484 return err;
485 }
486 cx_set(MO_PCI_INTMSK, core->pci_irqmask);
487
488 /* everything worked */
489 pci_set_drvdata(dev->pci,dev);
490 return 0;
491 }
492
493 void cx8802_fini_common(struct cx8802_dev *dev)
494 {
495 dprintk( 2, "cx8802_fini_common\n" );
496 cx8802_stop_dma(dev);
497 pci_disable_device(dev->pci);
498
499 /* unregister stuff */
500 free_irq(dev->pci->irq, dev);
501 pci_set_drvdata(dev->pci, NULL);
502
503 /* free memory */
504 btcx_riscmem_free(dev->pci,&dev->mpegq.stopper);
505 }
506
507 /* ----------------------------------------------------------- */
508
509 int cx8802_suspend_common(struct pci_dev *pci_dev, pm_message_t state)
510 {
511 struct cx8802_dev *dev = pci_get_drvdata(pci_dev);
512 struct cx88_core *core = dev->core;
513
514 /* stop mpeg dma */
515 spin_lock(&dev->slock);
516 if (!list_empty(&dev->mpegq.active)) {
517 dprintk( 2, "suspend\n" );
518 printk("%s: suspend mpeg\n", core->name);
519 cx8802_stop_dma(dev);
520 del_timer(&dev->mpegq.timeout);
521 }
522 spin_unlock(&dev->slock);
523
524 /* FIXME -- shutdown device */
525 cx88_shutdown(dev->core);
526
527 pci_save_state(pci_dev);
528 if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) {
529 pci_disable_device(pci_dev);
530 dev->state.disabled = 1;
531 }
532 return 0;
533 }
534
535 int cx8802_resume_common(struct pci_dev *pci_dev)
536 {
537 struct cx8802_dev *dev = pci_get_drvdata(pci_dev);
538 struct cx88_core *core = dev->core;
539 int err;
540
541 if (dev->state.disabled) {
542 err=pci_enable_device(pci_dev);
543 if (err) {
544 printk(KERN_ERR "%s: can't enable device\n",
545 dev->core->name);
546 return err;
547 }
548 dev->state.disabled = 0;
549 }
550 err=pci_set_power_state(pci_dev, PCI_D0);
551 if (err) {
552 printk(KERN_ERR "%s: can't enable device\n",
553 dev->core->name);
554 pci_disable_device(pci_dev);
555 dev->state.disabled = 1;
556
557 return err;
558 }
559 pci_restore_state(pci_dev);
560
561 /* FIXME: re-initialize hardware */
562 cx88_reset(dev->core);
563
564 /* restart video+vbi capture */
565 spin_lock(&dev->slock);
566 if (!list_empty(&dev->mpegq.active)) {
567 printk("%s: resume mpeg\n", core->name);
568 cx8802_restart_queue(dev,&dev->mpegq);
569 }
570 spin_unlock(&dev->slock);
571
572 return 0;
573 }
574
575 struct cx8802_dev * cx8802_get_device(struct inode *inode)
576 {
577 int minor = iminor(inode);
578 struct cx8802_dev *h = NULL;
579 struct list_head *list;
580
581 list_for_each(list,&cx8802_devlist) {
582 h = list_entry(list, struct cx8802_dev, devlist);
583 if (h->mpeg_dev && h->mpeg_dev->minor == minor)
584 return h;
585 }
586
587 return NULL;
588 }
589
590 struct cx8802_driver * cx8802_get_driver(struct cx8802_dev *dev, enum cx88_board_type btype)
591 {
592 struct cx8802_dev *h = NULL;
593 struct cx8802_driver *d = NULL;
594 struct list_head *list;
595 struct list_head *list2;
596
597 list_for_each(list,&cx8802_devlist) {
598 h = list_entry(list, struct cx8802_dev, devlist);
599 if (h != dev)
600 continue;
601
602 list_for_each(list2, &h->drvlist.devlist) {
603 d = list_entry(list2, struct cx8802_driver, devlist);
604
605 /* only unregister the correct driver type */
606 if (d->type_id == btype) {
607 return d;
608 }
609 }
610 }
611
612 return NULL;
613 }
614
615 /* Driver asked for hardware access. */
616 static int cx8802_request_acquire(struct cx8802_driver *drv)
617 {
618 struct cx88_core *core = drv->core;
619
620 /* Fail a request for hardware if the device is busy. */
621 if (core->active_type_id != CX88_BOARD_NONE)
622 return -EBUSY;
623
624 if (drv->advise_acquire)
625 {
626 core->active_type_id = drv->type_id;
627 drv->advise_acquire(drv);
628
629 mpeg_dbg(1,"%s() Post acquire GPIO=%x\n", __FUNCTION__, cx_read(MO_GP0_IO));
630 }
631
632 return 0;
633 }
634
635 /* Driver asked to release hardware. */
636 static int cx8802_request_release(struct cx8802_driver *drv)
637 {
638 struct cx88_core *core = drv->core;
639
640 if (drv->advise_release)
641 {
642 drv->advise_release(drv);
643 core->active_type_id = CX88_BOARD_NONE;
644 mpeg_dbg(1,"%s() Post release GPIO=%x\n", __FUNCTION__, cx_read(MO_GP0_IO));
645 }
646
647 return 0;
648 }
649
650 static int cx8802_check_driver(struct cx8802_driver *drv)
651 {
652 if (drv == NULL)
653 return -ENODEV;
654
655 if ((drv->type_id != CX88_MPEG_DVB) &&
656 (drv->type_id != CX88_MPEG_BLACKBIRD))
657 return -EINVAL;
658
659 if ((drv->hw_access != CX8802_DRVCTL_SHARED) &&
660 (drv->hw_access != CX8802_DRVCTL_EXCLUSIVE))
661 return -EINVAL;
662
663 if ((drv->probe == NULL) ||
664 (drv->remove == NULL) ||
665 (drv->advise_acquire == NULL) ||
666 (drv->advise_release == NULL))
667 return -EINVAL;
668
669 return 0;
670 }
671
672 int cx8802_register_driver(struct cx8802_driver *drv)
673 {
674 struct cx8802_dev *h;
675 struct cx8802_driver *driver;
676 struct list_head *list;
677 int err = 0, i = 0;
678
679 printk(KERN_INFO "%s() ->registering driver type=%s access=%s\n", __FUNCTION__ ,
680 drv->type_id == CX88_MPEG_DVB ? "dvb" : "blackbird",
681 drv->hw_access == CX8802_DRVCTL_SHARED ? "shared" : "exclusive");
682
683 if ((err = cx8802_check_driver(drv)) != 0) {
684 printk(KERN_INFO "%s() cx8802_driver is invalid\n", __FUNCTION__ );
685 return err;
686 }
687
688 list_for_each(list,&cx8802_devlist) {
689 h = list_entry(list, struct cx8802_dev, devlist);
690
691 printk(KERN_INFO "CORE %s: subsystem: %04x:%04x, board: %s [card=%d]\n",
692 h->core->name,h->pci->subsystem_vendor,
693 h->pci->subsystem_device,cx88_boards[h->core->board].name,
694 h->core->board);
695
696 /* Bring up a new struct for each driver instance */
697 driver = kzalloc(sizeof(*drv),GFP_KERNEL);
698 if (driver == NULL)
699 return -ENOMEM;
700
701 /* Snapshot of the driver registration data */
702 drv->core = h->core;
703 drv->suspend = cx8802_suspend_common;
704 drv->resume = cx8802_resume_common;
705 drv->request_acquire = cx8802_request_acquire;
706 drv->request_release = cx8802_request_release;
707 memcpy(driver, drv, sizeof(*driver));
708
709 err = drv->probe(driver);
710 if (err == 0) {
711 i++;
712 mutex_lock(&drv->core->lock);
713 list_add_tail(&driver->devlist,&h->drvlist.devlist);
714 mutex_unlock(&drv->core->lock);
715 } else {
716 printk(KERN_ERR "%s() ->probe failed err = %d\n", __FUNCTION__, err);
717 }
718
719 }
720 if (i == 0)
721 err = -ENODEV;
722 else
723 err = 0;
724
725 return err;
726 }
727
728 int cx8802_unregister_driver(struct cx8802_driver *drv)
729 {
730 struct cx8802_dev *h;
731 struct cx8802_driver *d;
732 struct list_head *list;
733 struct list_head *list2, *q;
734 int err = 0, i = 0;
735
736 printk(KERN_INFO "%s() ->unregistering driver type=%s\n", __FUNCTION__ ,
737 drv->type_id == CX88_MPEG_DVB ? "dvb" : "blackbird");
738
739 list_for_each(list,&cx8802_devlist) {
740 i++;
741 h = list_entry(list, struct cx8802_dev, devlist);
742
743 printk(KERN_INFO "CORE %s: subsystem: %04x:%04x, board: %s [card=%d]\n",
744 h->core->name,h->pci->subsystem_vendor,
745 h->pci->subsystem_device,cx88_boards[h->core->board].name,
746 h->core->board);
747
748 list_for_each_safe(list2, q, &h->drvlist.devlist) {
749 d = list_entry(list2, struct cx8802_driver, devlist);
750
751 /* only unregister the correct driver type */
752 if (d->type_id != drv->type_id)
753 continue;
754
755 err = d->remove(d);
756 if (err == 0) {
757 mutex_lock(&drv->core->lock);
758 list_del(list2);
759 mutex_unlock(&drv->core->lock);
760 } else
761 printk(KERN_ERR "%s() ->remove failed err = %d\n", __FUNCTION__, err);
762
763 }
764
765 }
766
767 return err;
768 }
769
770 /* ----------------------------------------------------------- */
771 static int __devinit cx8802_probe(struct pci_dev *pci_dev,
772 const struct pci_device_id *pci_id)
773 {
774 struct cx8802_dev *dev;
775 struct cx88_core *core;
776 int err;
777
778 /* general setup */
779 core = cx88_core_get(pci_dev);
780 if (NULL == core)
781 return -EINVAL;
782
783 printk("%s/2: cx2388x 8802 Driver Manager\n", core->name);
784
785 err = -ENODEV;
786 if (!cx88_boards[core->board].mpeg)
787 goto fail_core;
788
789 err = -ENOMEM;
790 dev = kzalloc(sizeof(*dev),GFP_KERNEL);
791 if (NULL == dev)
792 goto fail_core;
793 dev->pci = pci_dev;
794 dev->core = core;
795
796 err = cx8802_init_common(dev);
797 if (err != 0)
798 goto fail_free;
799
800 INIT_LIST_HEAD(&dev->drvlist.devlist);
801 list_add_tail(&dev->devlist,&cx8802_devlist);
802
803 /* Maintain a reference so cx88-video can query the 8802 device. */
804 core->dvbdev = dev;
805
806 /* now autoload cx88-dvb or cx88-blackbird */
807 request_modules(dev);
808 return 0;
809
810 fail_free:
811 kfree(dev);
812 fail_core:
813 cx88_core_put(core,pci_dev);
814 return err;
815 }
816
817 static void __devexit cx8802_remove(struct pci_dev *pci_dev)
818 {
819 struct cx8802_dev *dev;
820 struct cx8802_driver *h;
821 struct list_head *list;
822
823 dev = pci_get_drvdata(pci_dev);
824
825 dprintk( 1, "%s\n", __FUNCTION__);
826
827 list_for_each(list,&dev->drvlist.devlist) {
828 h = list_entry(list, struct cx8802_driver, devlist);
829 dprintk( 1, " ->driver\n");
830 if (h->remove == NULL) {
831 printk(KERN_ERR "%s .. skipping driver, no probe function\n", __FUNCTION__);
832 continue;
833 }
834 printk(KERN_INFO "%s .. Removing driver type %d\n", __FUNCTION__, h->type_id);
835 cx8802_unregister_driver(h);
836 list_del(&dev->drvlist.devlist);
837 }
838
839 /* Destroy any 8802 reference. */
840 dev->core->dvbdev = NULL;
841
842 /* common */
843 cx8802_fini_common(dev);
844 cx88_core_put(dev->core,dev->pci);
845 kfree(dev);
846 }
847
848 static struct pci_device_id cx8802_pci_tbl[] = {
849 {
850 .vendor = 0x14f1,
851 .device = 0x8802,
852 .subvendor = PCI_ANY_ID,
853 .subdevice = PCI_ANY_ID,
854 },{
855 /* --- end of list --- */
856 }
857 };
858 MODULE_DEVICE_TABLE(pci, cx8802_pci_tbl);
859
860 static struct pci_driver cx8802_pci_driver = {
861 .name = "cx88-mpeg driver manager",
862 .id_table = cx8802_pci_tbl,
863 .probe = cx8802_probe,
864 .remove = __devexit_p(cx8802_remove),
865 };
866
867 static int cx8802_init(void)
868 {
869 printk(KERN_INFO "cx2388x cx88-mpeg Driver Manager version %d.%d.%d loaded\n",
870 (CX88_VERSION_CODE >> 16) & 0xff,
871 (CX88_VERSION_CODE >> 8) & 0xff,
872 CX88_VERSION_CODE & 0xff);
873 #ifdef SNAPSHOT
874 printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n",
875 SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
876 #endif
877 return pci_register_driver(&cx8802_pci_driver);
878 }
879
880 static void cx8802_fini(void)
881 {
882 pci_unregister_driver(&cx8802_pci_driver);
883 }
884
885 module_init(cx8802_init);
886 module_exit(cx8802_fini);
887 EXPORT_SYMBOL(cx8802_buf_prepare);
888 EXPORT_SYMBOL(cx8802_buf_queue);
889 EXPORT_SYMBOL(cx8802_cancel_buffers);
890
891 EXPORT_SYMBOL(cx8802_init_common);
892 EXPORT_SYMBOL(cx8802_fini_common);
893
894 EXPORT_SYMBOL(cx8802_register_driver);
895 EXPORT_SYMBOL(cx8802_unregister_driver);
896 EXPORT_SYMBOL(cx8802_get_device);
897 EXPORT_SYMBOL(cx8802_get_driver);
898 /* ----------------------------------------------------------- */
899 /*
900 * Local variables:
901 * c-basic-offset: 8
902 * End:
903 * kate: eol "unix"; indent-width 3; remove-trailing-space on; replace-trailing-space-save on; tab-width 8; replace-tabs off; space-indent off; mixed-indent off
904 */
Tomato firmware and modifications.