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V4L/DVB (6061): ivtv: add VIDIOC_OVERLAY
[deliverable/linux.git] / drivers / media / video / cx88 / cx88-mpeg.c
CommitLineData
1da177e4 1/*
1da177e4
LT		 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>
c24228da 29#include <linux/dma-mapping.h>
1da177e4
LT		 30#include <linux/interrupt.h>
31#include <asm/delay.h>
32
33#include "cx88.h"
34
35/* ------------------------------------------------------------------ */
36
37MODULE_DESCRIPTION("mpeg driver for cx2388x based TV cards");
38MODULE_AUTHOR("Jelle Foks <jelle@foks.8m.com>");
39MODULE_AUTHOR("Chris Pascoe <c.pascoe@itee.uq.edu.au>");
40MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
41MODULE_LICENSE("GPL");
42
43static unsigned int debug = 0;
44module_param(debug,int,0644);
45MODULE_PARM_DESC(debug,"enable debug messages [mpeg]");
46
47#define dprintk(level,fmt, arg...) if (debug >= level) \
6c5be74c 48 printk(KERN_DEBUG "%s/2-mpeg: " fmt, dev->core->name, ## arg)
1da177e4 49
6c5be74c
ST		 50#define mpeg_dbg(level,fmt, arg...) if (debug >= level) \
51 printk(KERN_DEBUG "%s/2-mpeg: " fmt, core->name, ## arg)
52
77b74774
MR		 53#if defined(CONFIG_MODULES) && defined(MODULE)
54static void request_module_async(struct work_struct *work)
55{
56 struct cx8802_dev *dev=container_of(work, struct cx8802_dev, request_module_wk);
ced80c67 57
6a59d64c 58 if (dev->core->board.mpeg & CX88_MPEG_DVB)
77b74774 59 request_module("cx88-dvb");
6a59d64c 60 if (dev->core->board.mpeg & CX88_MPEG_BLACKBIRD)
ced80c67 61 request_module("cx88-blackbird");
77b74774
MR		 62}
63
64static void request_modules(struct cx8802_dev *dev)
65{
66 INIT_WORK(&dev->request_module_wk, request_module_async);
67 schedule_work(&dev->request_module_wk);
68}
69#else
70#define request_modules(dev)
71#endif /* CONFIG_MODULES */
72
73
6c5be74c 74static LIST_HEAD(cx8802_devlist);
1da177e4
LT		 75/* ------------------------------------------------------------------ */
76
77static int cx8802_start_dma(struct cx8802_dev *dev,
78 struct cx88_dmaqueue *q,
79 struct cx88_buffer *buf)
80{
81 struct cx88_core *core = dev->core;
82
76d313bf 83 dprintk(1, "cx8802_start_dma w: %d, h: %d, f: %d\n", dev->width, dev->height, buf->vb.field);
1da177e4
LT		 84
85 /* setup fifo + format */
86 cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH28],
87 dev->ts_packet_size, buf->risc.dma);
88
89 /* write TS length to chip */
90 cx_write(MO_TS_LNGTH, buf->vb.width);
91
1da177e4
LT		 92 /* FIXME: this needs a review.
93 * also: move to cx88-blackbird + cx88-dvb source files? */
94
6c5be74c
ST		 95 dprintk( 1, "core->active_type_id = 0x%08x\n", core->active_type_id);
96
97 if ( (core->active_type_id == CX88_MPEG_DVB) &&
6a59d64c 98 (core->board.mpeg & CX88_MPEG_DVB) ) {
6c5be74c
ST		 99
100 dprintk( 1, "cx8802_start_dma doing .dvb\n");
1da177e4 101 /* negedge driven & software reset */
f1798495 102 cx_write(TS_GEN_CNTRL, 0x0040 | dev->ts_gen_cntrl);
1da177e4
LT		 103 udelay(100);
104 cx_write(MO_PINMUX_IO, 0x00);
0d723c09 105 cx_write(TS_HW_SOP_CNTRL,0x47<<16|188<<4|0x01);
6a59d64c 106 switch (core->boardnr) {
e52e98a7
MCC		 107 case CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD_Q:
108 case CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD_T:
109 case CX88_BOARD_DVICO_FUSIONHDTV_5_GOLD:
da215d22 110 case CX88_BOARD_PCHDTV_HD5500:
41ef7c1e 111 cx_write(TS_SOP_STAT, 1<<13);
e52e98a7 112 break;
0fa14aa6
ST		 113 case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
114 case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
115 cx_write(MO_PINMUX_IO, 0x88); /* Enable MPEG parallel IO and video signal pins */
116 udelay(100);
117 break;
6c5be74c
ST		 118 case CX88_BOARD_HAUPPAUGE_HVR1300:
119 break;
e52e98a7 120 default:
41ef7c1e 121 cx_write(TS_SOP_STAT, 0x00);
e52e98a7 122 break;
f1798495 123 }
1da177e4
LT		 124 cx_write(TS_GEN_CNTRL, dev->ts_gen_cntrl);
125 udelay(100);
6c5be74c 126 } else if ( (core->active_type_id == CX88_MPEG_BLACKBIRD) &&
6a59d64c 127 (core->board.mpeg & CX88_MPEG_BLACKBIRD) ) {
6c5be74c 128 dprintk( 1, "cx8802_start_dma doing .blackbird\n");
1da177e4
LT		 129 cx_write(MO_PINMUX_IO, 0x88); /* enable MPEG parallel IO */
130
1da177e4
LT		 131 cx_write(TS_GEN_CNTRL, 0x46); /* punctured clock TS & posedge driven & software reset */
132 udelay(100);
133
134 cx_write(TS_HW_SOP_CNTRL, 0x408); /* mpeg start byte */
1da177e4
LT		 135 cx_write(TS_VALERR_CNTRL, 0x2000);
136
137 cx_write(TS_GEN_CNTRL, 0x06); /* punctured clock TS & posedge driven */
138 udelay(100);
6c5be74c
ST		 139 } else {
140 printk( "%s() Failed. Unsupported value in .mpeg (0x%08x)\n", __FUNCTION__,
6a59d64c 141 core->board.mpeg );
6c5be74c 142 return -EINVAL;
1da177e4 143 }
1da177e4
LT		 144
145 /* reset counter */
146 cx_write(MO_TS_GPCNTRL, GP_COUNT_CONTROL_RESET);
147 q->count = 1;
148
149 /* enable irqs */
76d313bf 150 dprintk( 1, "setting the interrupt mask\n" );
1da177e4 151 cx_set(MO_PCI_INTMSK, core->pci_irqmask | 0x04);
b45009b0 152 cx_set(MO_TS_INTMSK, 0x1f0011);
1da177e4
LT		 153
154 /* start dma */
b45009b0
MCC		 155 cx_set(MO_DEV_CNTRL2, (1<<5));
156 cx_set(MO_TS_DMACNTRL, 0x11);
1da177e4
LT		 157 return 0;
158}
159
160static int cx8802_stop_dma(struct cx8802_dev *dev)
161{
162 struct cx88_core *core = dev->core;
76d313bf 163 dprintk( 1, "cx8802_stop_dma\n" );
1da177e4
LT		 164
165 /* stop dma */
166 cx_clear(MO_TS_DMACNTRL, 0x11);
167
168 /* disable irqs */
169 cx_clear(MO_PCI_INTMSK, 0x000004);
170 cx_clear(MO_TS_INTMSK, 0x1f0011);
171
172 /* Reset the controller */
173 cx_write(TS_GEN_CNTRL, 0xcd);
174 return 0;
175}
176
177static int cx8802_restart_queue(struct cx8802_dev *dev,
178 struct cx88_dmaqueue *q)
179{
180 struct cx88_buffer *buf;
181 struct list_head *item;
182
f14ac0bc 183 dprintk( 1, "cx8802_restart_queue\n" );
1da177e4 184 if (list_empty(&q->active))
b45009b0 185 {
f14ac0bc
JF		 186 struct cx88_buffer *prev;
187 prev = NULL;
188
189 dprintk(1, "cx8802_restart_queue: queue is empty\n" );
190
191 for (;;) {
192 if (list_empty(&q->queued))
193 return 0;
194 buf = list_entry(q->queued.next, struct cx88_buffer, vb.queue);
195 if (NULL == prev) {
196 list_del(&buf->vb.queue);
197 list_add_tail(&buf->vb.queue,&q->active);
198 cx8802_start_dma(dev, q, buf);
199 buf->vb.state = STATE_ACTIVE;
200 buf->count = q->count++;
201 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
202 dprintk(1,"[%p/%d] restart_queue - first active\n",
203 buf,buf->vb.i);
204
205 } else if (prev->vb.width == buf->vb.width &&
206 prev->vb.height == buf->vb.height &&
207 prev->fmt == buf->fmt) {
208 list_del(&buf->vb.queue);
209 list_add_tail(&buf->vb.queue,&q->active);
210 buf->vb.state = STATE_ACTIVE;
211 buf->count = q->count++;
212 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
213 dprintk(1,"[%p/%d] restart_queue - move to active\n",
214 buf,buf->vb.i);
215 } else {
216 return 0;
217 }
218 prev = buf;
219 }
1da177e4 220 return 0;
b45009b0 221 }
1da177e4
LT		 222
223 buf = list_entry(q->active.next, struct cx88_buffer, vb.queue);
224 dprintk(2,"restart_queue [%p/%d]: restart dma\n",
225 buf, buf->vb.i);
226 cx8802_start_dma(dev, q, buf);
227 list_for_each(item,&q->active) {
228 buf = list_entry(item, struct cx88_buffer, vb.queue);
229 buf->count = q->count++;
230 }
231 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
232 return 0;
233}
234
235/* ------------------------------------------------------------------ */
236
c7b0ac05
MCC		 237int cx8802_buf_prepare(struct videobuf_queue *q, struct cx8802_dev *dev,
238 struct cx88_buffer *buf, enum v4l2_field field)
1da177e4
LT		 239{
240 int size = dev->ts_packet_size * dev->ts_packet_count;
241 int rc;
242
243 dprintk(1, "%s: %p\n", __FUNCTION__, buf);
244 if (0 != buf->vb.baddr && buf->vb.bsize < size)
245 return -EINVAL;
246
247 if (STATE_NEEDS_INIT == buf->vb.state) {
248 buf->vb.width = dev->ts_packet_size;
249 buf->vb.height = dev->ts_packet_count;
250 buf->vb.size = size;
31629424 251 buf->vb.field = field /*V4L2_FIELD_TOP*/;
1da177e4 252
c7b0ac05 253 if (0 != (rc = videobuf_iolock(q,&buf->vb,NULL)))
1da177e4
LT		 254 goto fail;
255 cx88_risc_databuffer(dev->pci, &buf->risc,
256 buf->vb.dma.sglist,
257 buf->vb.width, buf->vb.height);
258 }
259 buf->vb.state = STATE_PREPARED;
260 return 0;
261
262 fail:
c7b0ac05 263 cx88_free_buffer(q,buf);
1da177e4
LT		 264 return rc;
265}
266
267void cx8802_buf_queue(struct cx8802_dev *dev, struct cx88_buffer *buf)
268{
269 struct cx88_buffer *prev;
c7b0ac05 270 struct cx88_dmaqueue *cx88q = &dev->mpegq;
1da177e4 271
b45009b0 272 dprintk( 1, "cx8802_buf_queue\n" );
1da177e4
LT		 273 /* add jump to stopper */
274 buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
c7b0ac05 275 buf->risc.jmp[1] = cpu_to_le32(cx88q->stopper.dma);
1da177e4 276
c7b0ac05 277 if (list_empty(&cx88q->active)) {
76d313bf 278 dprintk( 1, "queue is empty - first active\n" );
c7b0ac05
MCC		 279 list_add_tail(&buf->vb.queue,&cx88q->active);
280 cx8802_start_dma(dev, cx88q, buf);
1da177e4 281 buf->vb.state = STATE_ACTIVE;
c7b0ac05
MCC		 282 buf->count = cx88q->count++;
283 mod_timer(&cx88q->timeout, jiffies+BUFFER_TIMEOUT);
76d313bf 284 dprintk(1,"[%p/%d] %s - first active\n",
1da177e4
LT		 285 buf, buf->vb.i, __FUNCTION__);
286
287 } else {
b45009b0 288 dprintk( 1, "queue is not empty - append to active\n" );
c7b0ac05
MCC		 289 prev = list_entry(cx88q->active.prev, struct cx88_buffer, vb.queue);
290 list_add_tail(&buf->vb.queue,&cx88q->active);
1da177e4 291 buf->vb.state = STATE_ACTIVE;
c7b0ac05 292 buf->count = cx88q->count++;
1da177e4 293 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
b45009b0 294 dprintk( 1, "[%p/%d] %s - append to active\n",
1da177e4
LT		 295 buf, buf->vb.i, __FUNCTION__);
296 }
297}
298
299/* ----------------------------------------------------------- */
300
301static void do_cancel_buffers(struct cx8802_dev *dev, char *reason, int restart)
302{
303 struct cx88_dmaqueue *q = &dev->mpegq;
304 struct cx88_buffer *buf;
305 unsigned long flags;
306
307 spin_lock_irqsave(&dev->slock,flags);
308 while (!list_empty(&q->active)) {
309 buf = list_entry(q->active.next, struct cx88_buffer, vb.queue);
310 list_del(&buf->vb.queue);
311 buf->vb.state = STATE_ERROR;
312 wake_up(&buf->vb.done);
313 dprintk(1,"[%p/%d] %s - dma=0x%08lx\n",
314 buf, buf->vb.i, reason, (unsigned long)buf->risc.dma);
315 }
316 if (restart)
b45009b0 317 {
76d313bf 318 dprintk(1, "restarting queue\n" );
1da177e4 319 cx8802_restart_queue(dev,q);
b45009b0 320 }
1da177e4
LT		 321 spin_unlock_irqrestore(&dev->slock,flags);
322}
323
324void cx8802_cancel_buffers(struct cx8802_dev *dev)
325{
326 struct cx88_dmaqueue *q = &dev->mpegq;
327
b45009b0 328 dprintk( 1, "cx8802_cancel_buffers" );
1da177e4
LT		 329 del_timer_sync(&q->timeout);
330 cx8802_stop_dma(dev);
331 do_cancel_buffers(dev,"cancel",0);
332}
333
334static void cx8802_timeout(unsigned long data)
335{
336 struct cx8802_dev *dev = (struct cx8802_dev*)data;
337
7d816b25 338 dprintk(1, "%s\n",__FUNCTION__);
1da177e4
LT		 339
340 if (debug)
341 cx88_sram_channel_dump(dev->core, &cx88_sram_channels[SRAM_CH28]);
342 cx8802_stop_dma(dev);
343 do_cancel_buffers(dev,"timeout",1);
344}
345
41ef7c1e
MCC		 346static char *cx88_mpeg_irqs[32] = {
347 "ts_risci1", NULL, NULL, NULL,
348 "ts_risci2", NULL, NULL, NULL,
349 "ts_oflow", NULL, NULL, NULL,
350 "ts_sync", NULL, NULL, NULL,
351 "opc_err", "par_err", "rip_err", "pci_abort",
352 "ts_err?",
353};
354
1da177e4
LT		 355static void cx8802_mpeg_irq(struct cx8802_dev *dev)
356{
357 struct cx88_core *core = dev->core;
358 u32 status, mask, count;
359
b45009b0 360 dprintk( 1, "cx8802_mpeg_irq\n" );
1da177e4
LT		 361 status = cx_read(MO_TS_INTSTAT);
362 mask = cx_read(MO_TS_INTMSK);
363 if (0 == (status & mask))
364 return;
365
366 cx_write(MO_TS_INTSTAT, status);
41ef7c1e 367
1da177e4
LT		 368 if (debug || (status & mask & ~0xff))
369 cx88_print_irqbits(core->name, "irq mpeg ",
66623a04
MCC		 370 cx88_mpeg_irqs, ARRAY_SIZE(cx88_mpeg_irqs),
371 status, mask);
1da177e4
LT		 372
373 /* risc op code error */
374 if (status & (1 << 16)) {
375 printk(KERN_WARNING "%s: mpeg risc op code error\n",core->name);
376 cx_clear(MO_TS_DMACNTRL, 0x11);
377 cx88_sram_channel_dump(dev->core, &cx88_sram_channels[SRAM_CH28]);
378 }
379
380 /* risc1 y */
381 if (status & 0x01) {
b45009b0 382 dprintk( 1, "wake up\n" );
1da177e4
LT		 383 spin_lock(&dev->slock);
384 count = cx_read(MO_TS_GPCNT);
385 cx88_wakeup(dev->core, &dev->mpegq, count);
386 spin_unlock(&dev->slock);
387 }
388
389 /* risc2 y */
390 if (status & 0x10) {
391 spin_lock(&dev->slock);
392 cx8802_restart_queue(dev,&dev->mpegq);
393 spin_unlock(&dev->slock);
394 }
395
4ac97914
MCC		 396 /* other general errors */
397 if (status & 0x1f0100) {
b45009b0 398 dprintk( 0, "general errors: 0x%08x\n", status & 0x1f0100 );
4ac97914 399 spin_lock(&dev->slock);
1da177e4 400 cx8802_stop_dma(dev);
4ac97914
MCC		 401 cx8802_restart_queue(dev,&dev->mpegq);
402 spin_unlock(&dev->slock);
403 }
1da177e4
LT		 404}
405
b45009b0
MCC		 406#define MAX_IRQ_LOOP 10
407
7d12e780 408static irqreturn_t cx8802_irq(int irq, void *dev_id)
1da177e4
LT		 409{
410 struct cx8802_dev *dev = dev_id;
411 struct cx88_core *core = dev->core;
412 u32 status;
413 int loop, handled = 0;
414
b45009b0 415 for (loop = 0; loop < MAX_IRQ_LOOP; loop++) {
1da177e4
LT		 416 status = cx_read(MO_PCI_INTSTAT) & (core->pci_irqmask | 0x04);
417 if (0 == status)
418 goto out;
b45009b0
MCC		 419 dprintk( 1, "cx8802_irq\n" );
420 dprintk( 1, " loop: %d/%d\n", loop, MAX_IRQ_LOOP );
421 dprintk( 1, " status: %d\n", status );
1da177e4
LT		 422 handled = 1;
423 cx_write(MO_PCI_INTSTAT, status);
424
425 if (status & core->pci_irqmask)
426 cx88_core_irq(core,status);
427 if (status & 0x04)
428 cx8802_mpeg_irq(dev);
429 };
b45009b0
MCC		 430 if (MAX_IRQ_LOOP == loop) {
431 dprintk( 0, "clearing mask\n" );
1da177e4
LT		 432 printk(KERN_WARNING "%s/0: irq loop -- clearing mask\n",
433 core->name);
434 cx_write(MO_PCI_INTMSK,0);
435 }
436
437 out:
438 return IRQ_RETVAL(handled);
439}
440
441/* ----------------------------------------------------------- */
442/* exported stuff */
443
444int cx8802_init_common(struct cx8802_dev *dev)
445{
446 struct cx88_core *core = dev->core;
447 int err;
448
449 /* pci init */
450 if (pci_enable_device(dev->pci))
451 return -EIO;
452 pci_set_master(dev->pci);
aaa40cb8 453 if (!pci_dma_supported(dev->pci,DMA_32BIT_MASK)) {
1da177e4
LT		 454 printk("%s/2: Oops: no 32bit PCI DMA ???\n",dev->core->name);
455 return -EIO;
456 }
457
458 pci_read_config_byte(dev->pci, PCI_CLASS_REVISION, &dev->pci_rev);
4ac97914
MCC		 459 pci_read_config_byte(dev->pci, PCI_LATENCY_TIMER, &dev->pci_lat);
460 printk(KERN_INFO "%s/2: found at %s, rev: %d, irq: %d, "
228aef63 461 "latency: %d, mmio: 0x%llx\n", dev->core->name,
1da177e4 462 pci_name(dev->pci), dev->pci_rev, dev->pci->irq,
228aef63 463 dev->pci_lat,(unsigned long long)pci_resource_start(dev->pci,0));
1da177e4
LT		 464
465 /* initialize driver struct */
1da177e4
LT		 466 spin_lock_init(&dev->slock);
467
468 /* init dma queue */
469 INIT_LIST_HEAD(&dev->mpegq.active);
470 INIT_LIST_HEAD(&dev->mpegq.queued);
471 dev->mpegq.timeout.function = cx8802_timeout;
472 dev->mpegq.timeout.data = (unsigned long)dev;
473 init_timer(&dev->mpegq.timeout);
474 cx88_risc_stopper(dev->pci,&dev->mpegq.stopper,
475 MO_TS_DMACNTRL,0x11,0x00);
476
477 /* get irq */
478 err = request_irq(dev->pci->irq, cx8802_irq,
8076fe32 479 IRQF_SHARED | IRQF_DISABLED, dev->core->name, dev);
1da177e4
LT		 480 if (err < 0) {
481 printk(KERN_ERR "%s: can't get IRQ %d\n",
482 dev->core->name, dev->pci->irq);
483 return err;
484 }
485 cx_set(MO_PCI_INTMSK, core->pci_irqmask);
486
487 /* everything worked */
488 pci_set_drvdata(dev->pci,dev);
489 return 0;
490}
491
492void cx8802_fini_common(struct cx8802_dev *dev)
493{
b45009b0 494 dprintk( 2, "cx8802_fini_common\n" );
1da177e4
LT		 495 cx8802_stop_dma(dev);
496 pci_disable_device(dev->pci);
497
498 /* unregister stuff */
499 free_irq(dev->pci->irq, dev);
500 pci_set_drvdata(dev->pci, NULL);
501
502 /* free memory */
503 btcx_riscmem_free(dev->pci,&dev->mpegq.stopper);
504}
505
506/* ----------------------------------------------------------- */
507
508int cx8802_suspend_common(struct pci_dev *pci_dev, pm_message_t state)
509{
4ac97914 510 struct cx8802_dev *dev = pci_get_drvdata(pci_dev);
1da177e4
LT		 511 struct cx88_core *core = dev->core;
512
513 /* stop mpeg dma */
514 spin_lock(&dev->slock);
515 if (!list_empty(&dev->mpegq.active)) {
b45009b0 516 dprintk( 2, "suspend\n" );
1da177e4
LT		 517 printk("%s: suspend mpeg\n", core->name);
518 cx8802_stop_dma(dev);
519 del_timer(&dev->mpegq.timeout);
520 }
521 spin_unlock(&dev->slock);
522
1da177e4
LT		 523 /* FIXME -- shutdown device */
524 cx88_shutdown(dev->core);
1da177e4
LT		 525
526 pci_save_state(pci_dev);
527 if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) {
528 pci_disable_device(pci_dev);
529 dev->state.disabled = 1;
530 }
531 return 0;
532}
533
534int cx8802_resume_common(struct pci_dev *pci_dev)
535{
08adb9e2 536 struct cx8802_dev *dev = pci_get_drvdata(pci_dev);
1da177e4 537 struct cx88_core *core = dev->core;
08adb9e2 538 int err;
1da177e4
LT		 539
540 if (dev->state.disabled) {
08adb9e2
MCC		 541 err=pci_enable_device(pci_dev);
542 if (err) {
543 printk(KERN_ERR "%s: can't enable device\n",
544 dev->core->name);
545 return err;
546 }
1da177e4
LT		 547 dev->state.disabled = 0;
548 }
08adb9e2
MCC		 549 err=pci_set_power_state(pci_dev, PCI_D0);
550 if (err) {
551 printk(KERN_ERR "%s: can't enable device\n",
552 dev->core->name);
553 pci_disable_device(pci_dev);
554 dev->state.disabled = 1;
555
556 return err;
557 }
1da177e4
LT		 558 pci_restore_state(pci_dev);
559
1da177e4
LT		 560 /* FIXME: re-initialize hardware */
561 cx88_reset(dev->core);
1da177e4
LT		 562
563 /* restart video+vbi capture */
564 spin_lock(&dev->slock);
565 if (!list_empty(&dev->mpegq.active)) {
566 printk("%s: resume mpeg\n", core->name);
567 cx8802_restart_queue(dev,&dev->mpegq);
568 }
569 spin_unlock(&dev->slock);
570
571 return 0;
572}
573
6c5be74c
ST		 574struct cx8802_dev * cx8802_get_device(struct inode *inode)
575{
576 int minor = iminor(inode);
577 struct cx8802_dev *h = NULL;
578 struct list_head *list;
579
580 list_for_each(list,&cx8802_devlist) {
581 h = list_entry(list, struct cx8802_dev, devlist);
48200bae 582 if (h->mpeg_dev && h->mpeg_dev->minor == minor)
6c5be74c
ST		 583 return h;
584 }
585
586 return NULL;
587}
588
589struct cx8802_driver * cx8802_get_driver(struct cx8802_dev *dev, enum cx88_board_type btype)
590{
591 struct cx8802_dev *h = NULL;
592 struct cx8802_driver *d = NULL;
593 struct list_head *list;
594 struct list_head *list2;
595
596 list_for_each(list,&cx8802_devlist) {
597 h = list_entry(list, struct cx8802_dev, devlist);
73438263
ST		 598 if (h != dev)
599 continue;
6c5be74c
ST		 600
601 list_for_each(list2, &h->drvlist.devlist) {
602 d = list_entry(list2, struct cx8802_driver, devlist);
603
604 /* only unregister the correct driver type */
605 if (d->type_id == btype) {
606 return d;
607 }
608 }
609 }
610
611 return NULL;
612}
613
614/* Driver asked for hardware access. */
9df2ead5 615static int cx8802_request_acquire(struct cx8802_driver *drv)
6c5be74c
ST		 616{
617 struct cx88_core *core = drv->core;
618
619 /* Fail a request for hardware if the device is busy. */
620 if (core->active_type_id != CX88_BOARD_NONE)
621 return -EBUSY;
622
623 if (drv->advise_acquire)
624 {
625 core->active_type_id = drv->type_id;
626 drv->advise_acquire(drv);
627
628 mpeg_dbg(1,"%s() Post acquire GPIO=%x\n", __FUNCTION__, cx_read(MO_GP0_IO));
629 }
630
631 return 0;
632}
633
634/* Driver asked to release hardware. */
9df2ead5 635static int cx8802_request_release(struct cx8802_driver *drv)
6c5be74c
ST		 636{
637 struct cx88_core *core = drv->core;
638
639 if (drv->advise_release)
640 {
641 drv->advise_release(drv);
642 core->active_type_id = CX88_BOARD_NONE;
643 mpeg_dbg(1,"%s() Post release GPIO=%x\n", __FUNCTION__, cx_read(MO_GP0_IO));
644 }
645
646 return 0;
647}
648
649static int cx8802_check_driver(struct cx8802_driver *drv)
650{
651 if (drv == NULL)
652 return -ENODEV;
653
654 if ((drv->type_id != CX88_MPEG_DVB) &&
655 (drv->type_id != CX88_MPEG_BLACKBIRD))
656 return -EINVAL;
657
658 if ((drv->hw_access != CX8802_DRVCTL_SHARED) &&
659 (drv->hw_access != CX8802_DRVCTL_EXCLUSIVE))
660 return -EINVAL;
661
662 if ((drv->probe == NULL) ||
663 (drv->remove == NULL) ||
664 (drv->advise_acquire == NULL) ||
665 (drv->advise_release == NULL))
666 return -EINVAL;
667
668 return 0;
669}
670
671int cx8802_register_driver(struct cx8802_driver *drv)
672{
673 struct cx8802_dev *h;
674 struct cx8802_driver *driver;
675 struct list_head *list;
676 int err = 0, i = 0;
677
5772f813
TP		 678 printk(KERN_INFO
679 "cx88/2: registering cx8802 driver, type: %s access: %s\n",
680 drv->type_id == CX88_MPEG_DVB ? "dvb" : "blackbird",
681 drv->hw_access == CX8802_DRVCTL_SHARED ? "shared" : "exclusive");
6c5be74c
ST		 682
683 if ((err = cx8802_check_driver(drv)) != 0) {
5772f813 684 printk(KERN_ERR "cx88/2: cx8802_driver is invalid\n");
6c5be74c
ST		 685 return err;
686 }
687
688 list_for_each(list,&cx8802_devlist) {
6c5be74c
ST		 689 h = list_entry(list, struct cx8802_dev, devlist);
690
5772f813
TP		 691 printk(KERN_INFO
692 "%s/2: subsystem: %04x:%04x, board: %s [card=%d]\n",
693 h->core->name, h->pci->subsystem_vendor,
694 h->pci->subsystem_device, h->core->board.name,
695 h->core->boardnr);
6c5be74c
ST		 696
697 /* Bring up a new struct for each driver instance */
698 driver = kzalloc(sizeof(*drv),GFP_KERNEL);
699 if (driver == NULL)
700 return -ENOMEM;
701
702 /* Snapshot of the driver registration data */
703 drv->core = h->core;
704 drv->suspend = cx8802_suspend_common;
705 drv->resume = cx8802_resume_common;
706 drv->request_acquire = cx8802_request_acquire;
707 drv->request_release = cx8802_request_release;
708 memcpy(driver, drv, sizeof(*driver));
709
710 err = drv->probe(driver);
711 if (err == 0) {
019391e4 712 i++;
6c5be74c
ST		 713 mutex_lock(&drv->core->lock);
714 list_add_tail(&driver->devlist,&h->drvlist.devlist);
715 mutex_unlock(&drv->core->lock);
716 } else {
5772f813
TP		 717 printk(KERN_ERR
718 "%s/2: cx8802 probe failed, err = %d\n",
719 h->core->name, err);
6c5be74c
ST		 720 }
721
722 }
723 if (i == 0)
724 err = -ENODEV;
019391e4
ST		 725 else
726 err = 0;
6c5be74c
ST		 727
728 return err;
729}
730
731int cx8802_unregister_driver(struct cx8802_driver *drv)
732{
733 struct cx8802_dev *h;
734 struct cx8802_driver *d;
735 struct list_head *list;
736 struct list_head *list2, *q;
737 int err = 0, i = 0;
738
5772f813
TP		 739 printk(KERN_INFO
740 "cx88/2: unregistering cx8802 driver, type: %s access: %s\n",
741 drv->type_id == CX88_MPEG_DVB ? "dvb" : "blackbird",
742 drv->hw_access == CX8802_DRVCTL_SHARED ? "shared" : "exclusive");
6c5be74c
ST		 743
744 list_for_each(list,&cx8802_devlist) {
745 i++;
746 h = list_entry(list, struct cx8802_dev, devlist);
747
5772f813
TP		 748 printk(KERN_INFO
749 "%s/2: subsystem: %04x:%04x, board: %s [card=%d]\n",
750 h->core->name, h->pci->subsystem_vendor,
751 h->pci->subsystem_device, h->core->board.name,
752 h->core->boardnr);
6c5be74c
ST		 753
754 list_for_each_safe(list2, q, &h->drvlist.devlist) {
755 d = list_entry(list2, struct cx8802_driver, devlist);
756
757 /* only unregister the correct driver type */
758 if (d->type_id != drv->type_id)
759 continue;
760
761 err = d->remove(d);
762 if (err == 0) {
763 mutex_lock(&drv->core->lock);
764 list_del(list2);
765 mutex_unlock(&drv->core->lock);
766 } else
5772f813
TP		 767 printk(KERN_ERR "%s/2: cx8802 driver remove "
768 "failed (%d)\n", h->core->name, err);
6c5be74c
ST		 769
770 }
771
772 }
773
774 return err;
775}
776
1da177e4 777/* ----------------------------------------------------------- */
6c5be74c
ST		 778static int __devinit cx8802_probe(struct pci_dev *pci_dev,
779 const struct pci_device_id *pci_id)
780{
781 struct cx8802_dev *dev;
782 struct cx88_core *core;
783 int err;
784
785 /* general setup */
786 core = cx88_core_get(pci_dev);
787 if (NULL == core)
788 return -EINVAL;
789
790 printk("%s/2: cx2388x 8802 Driver Manager\n", core->name);
791
792 err = -ENODEV;
6a59d64c 793 if (!core->board.mpeg)
6c5be74c
ST		 794 goto fail_core;
795
796 err = -ENOMEM;
797 dev = kzalloc(sizeof(*dev),GFP_KERNEL);
798 if (NULL == dev)
799 goto fail_core;
800 dev->pci = pci_dev;
801 dev->core = core;
802
803 err = cx8802_init_common(dev);
804 if (err != 0)
805 goto fail_free;
806
807 INIT_LIST_HEAD(&dev->drvlist.devlist);
808 list_add_tail(&dev->devlist,&cx8802_devlist);
1da177e4 809
6c5be74c
ST		 810 /* Maintain a reference so cx88-video can query the 8802 device. */
811 core->dvbdev = dev;
77b74774
MR		 812
813 /* now autoload cx88-dvb or cx88-blackbird */
814 request_modules(dev);
6c5be74c
ST		 815 return 0;
816
817 fail_free:
818 kfree(dev);
819 fail_core:
820 cx88_core_put(core,pci_dev);
821 return err;
822}
823
824static void __devexit cx8802_remove(struct pci_dev *pci_dev)
825{
826 struct cx8802_dev *dev;
827 struct cx8802_driver *h;
828 struct list_head *list;
829
830 dev = pci_get_drvdata(pci_dev);
831
832 dprintk( 1, "%s\n", __FUNCTION__);
833
834 list_for_each(list,&dev->drvlist.devlist) {
835 h = list_entry(list, struct cx8802_driver, devlist);
836 dprintk( 1, " ->driver\n");
837 if (h->remove == NULL) {
838 printk(KERN_ERR "%s .. skipping driver, no probe function\n", __FUNCTION__);
839 continue;
840 }
841 printk(KERN_INFO "%s .. Removing driver type %d\n", __FUNCTION__, h->type_id);
842 cx8802_unregister_driver(h);
843 list_del(&dev->drvlist.devlist);
844 }
845
846 /* Destroy any 8802 reference. */
847 dev->core->dvbdev = NULL;
848
849 /* common */
850 cx8802_fini_common(dev);
851 cx88_core_put(dev->core,dev->pci);
852 kfree(dev);
853}
854
855static struct pci_device_id cx8802_pci_tbl[] = {
856 {
857 .vendor = 0x14f1,
858 .device = 0x8802,
859 .subvendor = PCI_ANY_ID,
860 .subdevice = PCI_ANY_ID,
861 },{
862 /* --- end of list --- */
863 }
864};
865MODULE_DEVICE_TABLE(pci, cx8802_pci_tbl);
866
867static struct pci_driver cx8802_pci_driver = {
868 .name = "cx88-mpeg driver manager",
869 .id_table = cx8802_pci_tbl,
870 .probe = cx8802_probe,
871 .remove = __devexit_p(cx8802_remove),
872};
873
874static int cx8802_init(void)
875{
5772f813 876 printk(KERN_INFO "cx88/2: cx2388x MPEG-TS Driver Manager version %d.%d.%d loaded\n",
6c5be74c
ST		 877 (CX88_VERSION_CODE >> 16) & 0xff,
878 (CX88_VERSION_CODE >> 8) & 0xff,
879 CX88_VERSION_CODE & 0xff);
880#ifdef SNAPSHOT
881 printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n",
882 SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
883#endif
884 return pci_register_driver(&cx8802_pci_driver);
885}
886
887static void cx8802_fini(void)
888{
889 pci_unregister_driver(&cx8802_pci_driver);
890}
891
892module_init(cx8802_init);
893module_exit(cx8802_fini);
1da177e4
LT		 894EXPORT_SYMBOL(cx8802_buf_prepare);
895EXPORT_SYMBOL(cx8802_buf_queue);
896EXPORT_SYMBOL(cx8802_cancel_buffers);
897
898EXPORT_SYMBOL(cx8802_init_common);
899EXPORT_SYMBOL(cx8802_fini_common);
900
6c5be74c
ST		 901EXPORT_SYMBOL(cx8802_register_driver);
902EXPORT_SYMBOL(cx8802_unregister_driver);
903EXPORT_SYMBOL(cx8802_get_device);
904EXPORT_SYMBOL(cx8802_get_driver);
1da177e4
LT		 905/* ----------------------------------------------------------- */
906/*
907 * Local variables:
908 * c-basic-offset: 8
909 * End:
b45009b0 910 * 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
1da177e4 911 */
Linux kernel - Deliverables
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