diff options
Diffstat (limited to 'drivers/media/dvb/bt8xx/bt878.c')
-rw-r--r-- | drivers/media/dvb/bt8xx/bt878.c | 609 |
1 files changed, 609 insertions, 0 deletions
diff --git a/drivers/media/dvb/bt8xx/bt878.c b/drivers/media/dvb/bt8xx/bt878.c new file mode 100644 index 00000000000..b34fa95185e --- /dev/null +++ b/drivers/media/dvb/bt8xx/bt878.c | |||
@@ -0,0 +1,609 @@ | |||
1 | /* | ||
2 | * bt878.c: part of the driver for the Pinnacle PCTV Sat DVB PCI card | ||
3 | * | ||
4 | * Copyright (C) 2002 Peter Hettkamp <peter.hettkamp@htp-tel.de> | ||
5 | * | ||
6 | * large parts based on the bttv driver | ||
7 | * Copyright (C) 1996,97,98 Ralph Metzler (rjkm@metzlerbros.de) | ||
8 | * & Marcus Metzler (mocm@metzlerbros.de) | ||
9 | * (c) 1999,2000 Gerd Knorr <kraxel@goldbach.in-berlin.de> | ||
10 | * | ||
11 | * This program is free software; you can redistribute it and/or | ||
12 | * modify it under the terms of the GNU General Public License | ||
13 | * as published by the Free Software Foundation; either version 2 | ||
14 | * of the License, or (at your option) any later version. | ||
15 | * | ||
16 | |||
17 | * This program is distributed in the hope that it will be useful, | ||
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
20 | * GNU General Public License for more details. | ||
21 | * | ||
22 | |||
23 | * You should have received a copy of the GNU General Public License | ||
24 | * along with this program; if not, write to the Free Software | ||
25 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | ||
26 | * Or, point your browser to http://www.gnu.org/copyleft/gpl.html | ||
27 | * | ||
28 | */ | ||
29 | |||
30 | #include <linux/module.h> | ||
31 | #include <linux/kernel.h> | ||
32 | #include <linux/pci.h> | ||
33 | #include <asm/io.h> | ||
34 | #include <linux/ioport.h> | ||
35 | #include <asm/pgtable.h> | ||
36 | #include <asm/page.h> | ||
37 | #include <linux/types.h> | ||
38 | #include <linux/interrupt.h> | ||
39 | #include <linux/kmod.h> | ||
40 | #include <linux/vmalloc.h> | ||
41 | #include <linux/init.h> | ||
42 | |||
43 | #include "dmxdev.h" | ||
44 | #include "dvbdev.h" | ||
45 | #include "bt878.h" | ||
46 | #include "dst_priv.h" | ||
47 | |||
48 | |||
49 | /**************************************/ | ||
50 | /* Miscellaneous utility definitions */ | ||
51 | /**************************************/ | ||
52 | |||
53 | static unsigned int bt878_verbose = 1; | ||
54 | static unsigned int bt878_debug; | ||
55 | |||
56 | module_param_named(verbose, bt878_verbose, int, 0444); | ||
57 | MODULE_PARM_DESC(verbose, | ||
58 | "verbose startup messages, default is 1 (yes)"); | ||
59 | module_param_named(debug, bt878_debug, int, 0644); | ||
60 | MODULE_PARM_DESC(debug, "Turn on/off debugging, default is 0 (off)."); | ||
61 | |||
62 | int bt878_num; | ||
63 | struct bt878 bt878[BT878_MAX]; | ||
64 | |||
65 | EXPORT_SYMBOL(bt878_num); | ||
66 | EXPORT_SYMBOL(bt878); | ||
67 | |||
68 | #define btwrite(dat,adr) bmtwrite((dat), (bt->bt878_mem+(adr))) | ||
69 | #define btread(adr) bmtread(bt->bt878_mem+(adr)) | ||
70 | |||
71 | #define btand(dat,adr) btwrite((dat) & btread(adr), adr) | ||
72 | #define btor(dat,adr) btwrite((dat) | btread(adr), adr) | ||
73 | #define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr) | ||
74 | |||
75 | #if defined(dprintk) | ||
76 | #undef dprintk | ||
77 | #endif | ||
78 | #define dprintk(fmt, arg...) \ | ||
79 | do { \ | ||
80 | if (bt878_debug) \ | ||
81 | printk(KERN_DEBUG fmt, ##arg); \ | ||
82 | } while (0) | ||
83 | |||
84 | static void bt878_mem_free(struct bt878 *bt) | ||
85 | { | ||
86 | if (bt->buf_cpu) { | ||
87 | pci_free_consistent(bt->dev, bt->buf_size, bt->buf_cpu, | ||
88 | bt->buf_dma); | ||
89 | bt->buf_cpu = NULL; | ||
90 | } | ||
91 | |||
92 | if (bt->risc_cpu) { | ||
93 | pci_free_consistent(bt->dev, bt->risc_size, bt->risc_cpu, | ||
94 | bt->risc_dma); | ||
95 | bt->risc_cpu = NULL; | ||
96 | } | ||
97 | } | ||
98 | |||
99 | static int bt878_mem_alloc(struct bt878 *bt) | ||
100 | { | ||
101 | if (!bt->buf_cpu) { | ||
102 | bt->buf_size = 128 * 1024; | ||
103 | |||
104 | bt->buf_cpu = | ||
105 | pci_alloc_consistent(bt->dev, bt->buf_size, | ||
106 | &bt->buf_dma); | ||
107 | |||
108 | if (!bt->buf_cpu) | ||
109 | return -ENOMEM; | ||
110 | |||
111 | memset(bt->buf_cpu, 0, bt->buf_size); | ||
112 | } | ||
113 | |||
114 | if (!bt->risc_cpu) { | ||
115 | bt->risc_size = PAGE_SIZE; | ||
116 | bt->risc_cpu = | ||
117 | pci_alloc_consistent(bt->dev, bt->risc_size, | ||
118 | &bt->risc_dma); | ||
119 | |||
120 | if (!bt->risc_cpu) { | ||
121 | bt878_mem_free(bt); | ||
122 | return -ENOMEM; | ||
123 | } | ||
124 | |||
125 | memset(bt->risc_cpu, 0, bt->risc_size); | ||
126 | } | ||
127 | |||
128 | return 0; | ||
129 | } | ||
130 | |||
131 | /* RISC instructions */ | ||
132 | #define RISC_WRITE (0x01 << 28) | ||
133 | #define RISC_JUMP (0x07 << 28) | ||
134 | #define RISC_SYNC (0x08 << 28) | ||
135 | |||
136 | /* RISC bits */ | ||
137 | #define RISC_WR_SOL (1 << 27) | ||
138 | #define RISC_WR_EOL (1 << 26) | ||
139 | #define RISC_IRQ (1 << 24) | ||
140 | #define RISC_STATUS(status) ((((~status) & 0x0F) << 20) | ((status & 0x0F) << 16)) | ||
141 | #define RISC_SYNC_RESYNC (1 << 15) | ||
142 | #define RISC_SYNC_FM1 0x06 | ||
143 | #define RISC_SYNC_VRO 0x0C | ||
144 | |||
145 | #define RISC_FLUSH() bt->risc_pos = 0 | ||
146 | #define RISC_INSTR(instr) bt->risc_cpu[bt->risc_pos++] = cpu_to_le32(instr) | ||
147 | |||
148 | static int bt878_make_risc(struct bt878 *bt) | ||
149 | { | ||
150 | bt->block_bytes = bt->buf_size >> 4; | ||
151 | bt->block_count = 1 << 4; | ||
152 | bt->line_bytes = bt->block_bytes; | ||
153 | bt->line_count = bt->block_count; | ||
154 | |||
155 | while (bt->line_bytes > 4095) { | ||
156 | bt->line_bytes >>= 1; | ||
157 | bt->line_count <<= 1; | ||
158 | } | ||
159 | |||
160 | if (bt->line_count > 255) { | ||
161 | printk(KERN_ERR "bt878: buffer size error!\n"); | ||
162 | return -EINVAL; | ||
163 | } | ||
164 | return 0; | ||
165 | } | ||
166 | |||
167 | |||
168 | static void bt878_risc_program(struct bt878 *bt, u32 op_sync_orin) | ||
169 | { | ||
170 | u32 buf_pos = 0; | ||
171 | u32 line; | ||
172 | |||
173 | RISC_FLUSH(); | ||
174 | RISC_INSTR(RISC_SYNC | RISC_SYNC_FM1 | op_sync_orin); | ||
175 | RISC_INSTR(0); | ||
176 | |||
177 | dprintk("bt878: risc len lines %u, bytes per line %u\n", | ||
178 | bt->line_count, bt->line_bytes); | ||
179 | for (line = 0; line < bt->line_count; line++) { | ||
180 | // At the beginning of every block we issue an IRQ with previous (finished) block number set | ||
181 | if (!(buf_pos % bt->block_bytes)) | ||
182 | RISC_INSTR(RISC_WRITE | RISC_WR_SOL | RISC_WR_EOL | | ||
183 | RISC_IRQ | | ||
184 | RISC_STATUS(((buf_pos / | ||
185 | bt->block_bytes) + | ||
186 | (bt->block_count - | ||
187 | 1)) % | ||
188 | bt->block_count) | bt-> | ||
189 | line_bytes); | ||
190 | else | ||
191 | RISC_INSTR(RISC_WRITE | RISC_WR_SOL | RISC_WR_EOL | | ||
192 | bt->line_bytes); | ||
193 | RISC_INSTR(bt->buf_dma + buf_pos); | ||
194 | buf_pos += bt->line_bytes; | ||
195 | } | ||
196 | |||
197 | RISC_INSTR(RISC_SYNC | op_sync_orin | RISC_SYNC_VRO); | ||
198 | RISC_INSTR(0); | ||
199 | |||
200 | RISC_INSTR(RISC_JUMP); | ||
201 | RISC_INSTR(bt->risc_dma); | ||
202 | |||
203 | btwrite((bt->line_count << 16) | bt->line_bytes, BT878_APACK_LEN); | ||
204 | } | ||
205 | |||
206 | /*****************************/ | ||
207 | /* Start/Stop grabbing funcs */ | ||
208 | /*****************************/ | ||
209 | |||
210 | void bt878_start(struct bt878 *bt, u32 controlreg, u32 op_sync_orin, | ||
211 | u32 irq_err_ignore) | ||
212 | { | ||
213 | u32 int_mask; | ||
214 | |||
215 | dprintk("bt878 debug: bt878_start (ctl=%8.8x)\n", controlreg); | ||
216 | /* complete the writing of the risc dma program now we have | ||
217 | * the card specifics | ||
218 | */ | ||
219 | bt878_risc_program(bt, op_sync_orin); | ||
220 | controlreg &= ~0x1f; | ||
221 | controlreg |= 0x1b; | ||
222 | |||
223 | btwrite(bt->risc_dma, BT878_ARISC_START); | ||
224 | |||
225 | /* original int mask had : | ||
226 | * 6 2 8 4 0 | ||
227 | * 1111 1111 1000 0000 0000 | ||
228 | * SCERR|OCERR|PABORT|RIPERR|FDSR|FTRGT|FBUS|RISCI | ||
229 | * Hacked for DST to: | ||
230 | * SCERR | OCERR | FDSR | FTRGT | FBUS | RISCI | ||
231 | */ | ||
232 | int_mask = BT878_ASCERR | BT878_AOCERR | BT878_APABORT | | ||
233 | BT878_ARIPERR | BT878_APPERR | BT878_AFDSR | BT878_AFTRGT | | ||
234 | BT878_AFBUS | BT878_ARISCI; | ||
235 | |||
236 | |||
237 | /* ignore pesky bits */ | ||
238 | int_mask &= ~irq_err_ignore; | ||
239 | |||
240 | btwrite(int_mask, BT878_AINT_MASK); | ||
241 | btwrite(controlreg, BT878_AGPIO_DMA_CTL); | ||
242 | } | ||
243 | |||
244 | void bt878_stop(struct bt878 *bt) | ||
245 | { | ||
246 | u32 stat; | ||
247 | int i = 0; | ||
248 | |||
249 | dprintk("bt878 debug: bt878_stop\n"); | ||
250 | |||
251 | btwrite(0, BT878_AINT_MASK); | ||
252 | btand(~0x13, BT878_AGPIO_DMA_CTL); | ||
253 | |||
254 | do { | ||
255 | stat = btread(BT878_AINT_STAT); | ||
256 | if (!(stat & BT878_ARISC_EN)) | ||
257 | break; | ||
258 | i++; | ||
259 | } while (i < 500); | ||
260 | |||
261 | dprintk("bt878(%d) debug: bt878_stop, i=%d, stat=0x%8.8x\n", | ||
262 | bt->nr, i, stat); | ||
263 | } | ||
264 | |||
265 | EXPORT_SYMBOL(bt878_start); | ||
266 | EXPORT_SYMBOL(bt878_stop); | ||
267 | |||
268 | /*****************************/ | ||
269 | /* Interrupt service routine */ | ||
270 | /*****************************/ | ||
271 | |||
272 | static irqreturn_t bt878_irq(int irq, void *dev_id) | ||
273 | { | ||
274 | u32 stat, astat, mask; | ||
275 | int count; | ||
276 | struct bt878 *bt; | ||
277 | |||
278 | bt = (struct bt878 *) dev_id; | ||
279 | |||
280 | count = 0; | ||
281 | while (1) { | ||
282 | stat = btread(BT878_AINT_STAT); | ||
283 | mask = btread(BT878_AINT_MASK); | ||
284 | if (!(astat = (stat & mask))) | ||
285 | return IRQ_NONE; /* this interrupt is not for me */ | ||
286 | /* dprintk("bt878(%d) debug: irq count %d, stat 0x%8.8x, mask 0x%8.8x\n",bt->nr,count,stat,mask); */ | ||
287 | btwrite(astat, BT878_AINT_STAT); /* try to clear interrupt condition */ | ||
288 | |||
289 | |||
290 | if (astat & (BT878_ASCERR | BT878_AOCERR)) { | ||
291 | if (bt878_verbose) { | ||
292 | printk(KERN_INFO | ||
293 | "bt878(%d): irq%s%s risc_pc=%08x\n", | ||
294 | bt->nr, | ||
295 | (astat & BT878_ASCERR) ? " SCERR" : | ||
296 | "", | ||
297 | (astat & BT878_AOCERR) ? " OCERR" : | ||
298 | "", btread(BT878_ARISC_PC)); | ||
299 | } | ||
300 | } | ||
301 | if (astat & (BT878_APABORT | BT878_ARIPERR | BT878_APPERR)) { | ||
302 | if (bt878_verbose) { | ||
303 | printk(KERN_INFO | ||
304 | "bt878(%d): irq%s%s%s risc_pc=%08x\n", | ||
305 | bt->nr, | ||
306 | (astat & BT878_APABORT) ? " PABORT" : | ||
307 | "", | ||
308 | (astat & BT878_ARIPERR) ? " RIPERR" : | ||
309 | "", | ||
310 | (astat & BT878_APPERR) ? " PPERR" : | ||
311 | "", btread(BT878_ARISC_PC)); | ||
312 | } | ||
313 | } | ||
314 | if (astat & (BT878_AFDSR | BT878_AFTRGT | BT878_AFBUS)) { | ||
315 | if (bt878_verbose) { | ||
316 | printk(KERN_INFO | ||
317 | "bt878(%d): irq%s%s%s risc_pc=%08x\n", | ||
318 | bt->nr, | ||
319 | (astat & BT878_AFDSR) ? " FDSR" : "", | ||
320 | (astat & BT878_AFTRGT) ? " FTRGT" : | ||
321 | "", | ||
322 | (astat & BT878_AFBUS) ? " FBUS" : "", | ||
323 | btread(BT878_ARISC_PC)); | ||
324 | } | ||
325 | } | ||
326 | if (astat & BT878_ARISCI) { | ||
327 | bt->finished_block = (stat & BT878_ARISCS) >> 28; | ||
328 | tasklet_schedule(&bt->tasklet); | ||
329 | break; | ||
330 | } | ||
331 | count++; | ||
332 | if (count > 20) { | ||
333 | btwrite(0, BT878_AINT_MASK); | ||
334 | printk(KERN_ERR | ||
335 | "bt878(%d): IRQ lockup, cleared int mask\n", | ||
336 | bt->nr); | ||
337 | break; | ||
338 | } | ||
339 | } | ||
340 | return IRQ_HANDLED; | ||
341 | } | ||
342 | |||
343 | int | ||
344 | bt878_device_control(struct bt878 *bt, unsigned int cmd, union dst_gpio_packet *mp) | ||
345 | { | ||
346 | int retval; | ||
347 | |||
348 | retval = 0; | ||
349 | if (mutex_lock_interruptible(&bt->gpio_lock)) | ||
350 | return -ERESTARTSYS; | ||
351 | /* special gpio signal */ | ||
352 | switch (cmd) { | ||
353 | case DST_IG_ENABLE: | ||
354 | // dprintk("dvb_bt8xx: dst enable mask 0x%02x enb 0x%02x \n", mp->dstg.enb.mask, mp->dstg.enb.enable); | ||
355 | retval = bttv_gpio_enable(bt->bttv_nr, | ||
356 | mp->enb.mask, | ||
357 | mp->enb.enable); | ||
358 | break; | ||
359 | case DST_IG_WRITE: | ||
360 | // dprintk("dvb_bt8xx: dst write gpio mask 0x%02x out 0x%02x\n", mp->dstg.outp.mask, mp->dstg.outp.highvals); | ||
361 | retval = bttv_write_gpio(bt->bttv_nr, | ||
362 | mp->outp.mask, | ||
363 | mp->outp.highvals); | ||
364 | |||
365 | break; | ||
366 | case DST_IG_READ: | ||
367 | /* read */ | ||
368 | retval = bttv_read_gpio(bt->bttv_nr, &mp->rd.value); | ||
369 | // dprintk("dvb_bt8xx: dst read gpio 0x%02x\n", (unsigned)mp->dstg.rd.value); | ||
370 | break; | ||
371 | case DST_IG_TS: | ||
372 | /* Set packet size */ | ||
373 | bt->TS_Size = mp->psize; | ||
374 | break; | ||
375 | |||
376 | default: | ||
377 | retval = -EINVAL; | ||
378 | break; | ||
379 | } | ||
380 | mutex_unlock(&bt->gpio_lock); | ||
381 | return retval; | ||
382 | } | ||
383 | |||
384 | EXPORT_SYMBOL(bt878_device_control); | ||
385 | |||
386 | #define BROOKTREE_878_DEVICE(vend, dev, name) \ | ||
387 | { \ | ||
388 | .vendor = PCI_VENDOR_ID_BROOKTREE, \ | ||
389 | .device = PCI_DEVICE_ID_BROOKTREE_878, \ | ||
390 | .subvendor = (vend), .subdevice = (dev), \ | ||
391 | .driver_data = (unsigned long) name \ | ||
392 | } | ||
393 | |||
394 | static struct pci_device_id bt878_pci_tbl[] __devinitdata = { | ||
395 | BROOKTREE_878_DEVICE(0x0071, 0x0101, "Nebula Electronics DigiTV"), | ||
396 | BROOKTREE_878_DEVICE(0x1461, 0x0761, "AverMedia AverTV DVB-T 761"), | ||
397 | BROOKTREE_878_DEVICE(0x11bd, 0x001c, "Pinnacle PCTV Sat"), | ||
398 | BROOKTREE_878_DEVICE(0x11bd, 0x0026, "Pinnacle PCTV SAT CI"), | ||
399 | BROOKTREE_878_DEVICE(0x1822, 0x0001, "Twinhan VisionPlus DVB"), | ||
400 | BROOKTREE_878_DEVICE(0x270f, 0xfc00, | ||
401 | "ChainTech digitop DST-1000 DVB-S"), | ||
402 | BROOKTREE_878_DEVICE(0x1461, 0x0771, "AVermedia AverTV DVB-T 771"), | ||
403 | BROOKTREE_878_DEVICE(0x18ac, 0xdb10, "DViCO FusionHDTV DVB-T Lite"), | ||
404 | BROOKTREE_878_DEVICE(0x18ac, 0xdb11, "Ultraview DVB-T Lite"), | ||
405 | BROOKTREE_878_DEVICE(0x18ac, 0xd500, "DViCO FusionHDTV 5 Lite"), | ||
406 | BROOKTREE_878_DEVICE(0x7063, 0x2000, "pcHDTV HD-2000 TV"), | ||
407 | BROOKTREE_878_DEVICE(0x1822, 0x0026, "DNTV Live! Mini"), | ||
408 | { } | ||
409 | }; | ||
410 | |||
411 | MODULE_DEVICE_TABLE(pci, bt878_pci_tbl); | ||
412 | |||
413 | static const char * __devinit card_name(const struct pci_device_id *id) | ||
414 | { | ||
415 | return id->driver_data ? (const char *)id->driver_data : "Unknown"; | ||
416 | } | ||
417 | |||
418 | /***********************/ | ||
419 | /* PCI device handling */ | ||
420 | /***********************/ | ||
421 | |||
422 | static int __devinit bt878_probe(struct pci_dev *dev, | ||
423 | const struct pci_device_id *pci_id) | ||
424 | { | ||
425 | int result = 0; | ||
426 | unsigned char lat; | ||
427 | struct bt878 *bt; | ||
428 | #if defined(__powerpc__) | ||
429 | unsigned int cmd; | ||
430 | #endif | ||
431 | unsigned int cardid; | ||
432 | |||
433 | printk(KERN_INFO "bt878: Bt878 AUDIO function found (%d).\n", | ||
434 | bt878_num); | ||
435 | if (bt878_num >= BT878_MAX) { | ||
436 | printk(KERN_ERR "bt878: Too many devices inserted\n"); | ||
437 | result = -ENOMEM; | ||
438 | goto fail0; | ||
439 | } | ||
440 | if (pci_enable_device(dev)) | ||
441 | return -EIO; | ||
442 | |||
443 | cardid = dev->subsystem_device << 16; | ||
444 | cardid |= dev->subsystem_vendor; | ||
445 | |||
446 | printk(KERN_INFO "%s: card id=[0x%x],[ %s ] has DVB functions.\n", | ||
447 | __func__, cardid, card_name(pci_id)); | ||
448 | |||
449 | bt = &bt878[bt878_num]; | ||
450 | bt->dev = dev; | ||
451 | bt->nr = bt878_num; | ||
452 | bt->shutdown = 0; | ||
453 | |||
454 | bt->id = dev->device; | ||
455 | bt->irq = dev->irq; | ||
456 | bt->bt878_adr = pci_resource_start(dev, 0); | ||
457 | if (!request_mem_region(pci_resource_start(dev, 0), | ||
458 | pci_resource_len(dev, 0), "bt878")) { | ||
459 | result = -EBUSY; | ||
460 | goto fail0; | ||
461 | } | ||
462 | |||
463 | bt->revision = dev->revision; | ||
464 | pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat); | ||
465 | |||
466 | |||
467 | printk(KERN_INFO "bt878(%d): Bt%x (rev %d) at %02x:%02x.%x, ", | ||
468 | bt878_num, bt->id, bt->revision, dev->bus->number, | ||
469 | PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn)); | ||
470 | printk("irq: %d, latency: %d, memory: 0x%lx\n", | ||
471 | bt->irq, lat, bt->bt878_adr); | ||
472 | |||
473 | |||
474 | #if defined(__powerpc__) | ||
475 | /* on OpenFirmware machines (PowerMac at least), PCI memory cycle */ | ||
476 | /* response on cards with no firmware is not enabled by OF */ | ||
477 | pci_read_config_dword(dev, PCI_COMMAND, &cmd); | ||
478 | cmd = (cmd | PCI_COMMAND_MEMORY); | ||
479 | pci_write_config_dword(dev, PCI_COMMAND, cmd); | ||
480 | #endif | ||
481 | |||
482 | #ifdef __sparc__ | ||
483 | bt->bt878_mem = (unsigned char *) bt->bt878_adr; | ||
484 | #else | ||
485 | bt->bt878_mem = ioremap(bt->bt878_adr, 0x1000); | ||
486 | #endif | ||
487 | |||
488 | /* clear interrupt mask */ | ||
489 | btwrite(0, BT848_INT_MASK); | ||
490 | |||
491 | result = request_irq(bt->irq, bt878_irq, | ||
492 | IRQF_SHARED | IRQF_DISABLED, "bt878", | ||
493 | (void *) bt); | ||
494 | if (result == -EINVAL) { | ||
495 | printk(KERN_ERR "bt878(%d): Bad irq number or handler\n", | ||
496 | bt878_num); | ||
497 | goto fail1; | ||
498 | } | ||
499 | if (result == -EBUSY) { | ||
500 | printk(KERN_ERR | ||
501 | "bt878(%d): IRQ %d busy, change your PnP config in BIOS\n", | ||
502 | bt878_num, bt->irq); | ||
503 | goto fail1; | ||
504 | } | ||
505 | if (result < 0) | ||
506 | goto fail1; | ||
507 | |||
508 | pci_set_master(dev); | ||
509 | pci_set_drvdata(dev, bt); | ||
510 | |||
511 | if ((result = bt878_mem_alloc(bt))) { | ||
512 | printk(KERN_ERR "bt878: failed to allocate memory!\n"); | ||
513 | goto fail2; | ||
514 | } | ||
515 | |||
516 | bt878_make_risc(bt); | ||
517 | btwrite(0, BT878_AINT_MASK); | ||
518 | bt878_num++; | ||
519 | |||
520 | return 0; | ||
521 | |||
522 | fail2: | ||
523 | free_irq(bt->irq, bt); | ||
524 | fail1: | ||
525 | release_mem_region(pci_resource_start(bt->dev, 0), | ||
526 | pci_resource_len(bt->dev, 0)); | ||
527 | fail0: | ||
528 | pci_disable_device(dev); | ||
529 | return result; | ||
530 | } | ||
531 | |||
532 | static void __devexit bt878_remove(struct pci_dev *pci_dev) | ||
533 | { | ||
534 | u8 command; | ||
535 | struct bt878 *bt = pci_get_drvdata(pci_dev); | ||
536 | |||
537 | if (bt878_verbose) | ||
538 | printk(KERN_INFO "bt878(%d): unloading\n", bt->nr); | ||
539 | |||
540 | /* turn off all capturing, DMA and IRQs */ | ||
541 | btand(~0x13, BT878_AGPIO_DMA_CTL); | ||
542 | |||
543 | /* first disable interrupts before unmapping the memory! */ | ||
544 | btwrite(0, BT878_AINT_MASK); | ||
545 | btwrite(~0U, BT878_AINT_STAT); | ||
546 | |||
547 | /* disable PCI bus-mastering */ | ||
548 | pci_read_config_byte(bt->dev, PCI_COMMAND, &command); | ||
549 | /* Should this be &=~ ?? */ | ||
550 | command &= ~PCI_COMMAND_MASTER; | ||
551 | pci_write_config_byte(bt->dev, PCI_COMMAND, command); | ||
552 | |||
553 | free_irq(bt->irq, bt); | ||
554 | printk(KERN_DEBUG "bt878_mem: 0x%p.\n", bt->bt878_mem); | ||
555 | if (bt->bt878_mem) | ||
556 | iounmap(bt->bt878_mem); | ||
557 | |||
558 | release_mem_region(pci_resource_start(bt->dev, 0), | ||
559 | pci_resource_len(bt->dev, 0)); | ||
560 | /* wake up any waiting processes | ||
561 | because shutdown flag is set, no new processes (in this queue) | ||
562 | are expected | ||
563 | */ | ||
564 | bt->shutdown = 1; | ||
565 | bt878_mem_free(bt); | ||
566 | |||
567 | pci_set_drvdata(pci_dev, NULL); | ||
568 | pci_disable_device(pci_dev); | ||
569 | return; | ||
570 | } | ||
571 | |||
572 | static struct pci_driver bt878_pci_driver = { | ||
573 | .name = "bt878", | ||
574 | .id_table = bt878_pci_tbl, | ||
575 | .probe = bt878_probe, | ||
576 | .remove = __devexit_p(bt878_remove), | ||
577 | }; | ||
578 | |||
579 | /*******************************/ | ||
580 | /* Module management functions */ | ||
581 | /*******************************/ | ||
582 | |||
583 | static int __init bt878_init_module(void) | ||
584 | { | ||
585 | bt878_num = 0; | ||
586 | |||
587 | printk(KERN_INFO "bt878: AUDIO driver version %d.%d.%d loaded\n", | ||
588 | (BT878_VERSION_CODE >> 16) & 0xff, | ||
589 | (BT878_VERSION_CODE >> 8) & 0xff, | ||
590 | BT878_VERSION_CODE & 0xff); | ||
591 | |||
592 | return pci_register_driver(&bt878_pci_driver); | ||
593 | } | ||
594 | |||
595 | static void __exit bt878_cleanup_module(void) | ||
596 | { | ||
597 | pci_unregister_driver(&bt878_pci_driver); | ||
598 | } | ||
599 | |||
600 | module_init(bt878_init_module); | ||
601 | module_exit(bt878_cleanup_module); | ||
602 | |||
603 | MODULE_LICENSE("GPL"); | ||
604 | |||
605 | /* | ||
606 | * Local variables: | ||
607 | * c-basic-offset: 8 | ||
608 | * End: | ||
609 | */ | ||