Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * bt878.c: part of the driver for the Pinnacle PCTV Sat DVB PCI card | |
3 | * | |
a8d995c9 | 4 | * Copyright (C) 2002 Peter Hettkamp <peter.hettkamp@htp-tel.de> |
1da177e4 LT |
5 | * |
6 | * large parts based on the bttv driver | |
50b215a0 JS |
7 | * Copyright (C) 1996,97,98 Ralph Metzler (rjkm@metzlerbros.de) |
8 | * & Marcus Metzler (mocm@metzlerbros.de) | |
1da177e4 LT |
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. | |
43f1a8f8 | 15 | * |
1da177e4 LT |
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. | |
43f1a8f8 | 21 | * |
1da177e4 LT |
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 | |
43f1a8f8 | 27 | * |
1da177e4 LT |
28 | */ |
29 | ||
30 | #include <linux/module.h> | |
1da177e4 LT |
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); | |
43f1a8f8 | 60 | MODULE_PARM_DESC(debug, "Turn on/off debugging, default is 0 (off)."); |
1da177e4 LT |
61 | |
62 | int bt878_num; | |
63 | struct bt878 bt878[BT878_MAX]; | |
64 | ||
1da177e4 LT |
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 | |
46c9fc86 AM |
78 | #define dprintk(fmt, arg...) \ |
79 | do { \ | |
80 | if (bt878_debug) \ | |
81 | printk(KERN_DEBUG fmt, ##arg); \ | |
82 | } while (0) | |
1da177e4 LT |
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 */ | |
43f1a8f8 JS |
132 | #define RISC_WRITE (0x01 << 28) |
133 | #define RISC_JUMP (0x07 << 28) | |
134 | #define RISC_SYNC (0x08 << 28) | |
1da177e4 LT |
135 | |
136 | /* RISC bits */ | |
43f1a8f8 JS |
137 | #define RISC_WR_SOL (1 << 27) |
138 | #define RISC_WR_EOL (1 << 26) | |
139 | #define RISC_IRQ (1 << 24) | |
1da177e4 | 140 | #define RISC_STATUS(status) ((((~status) & 0x0F) << 20) | ((status & 0x0F) << 16)) |
43f1a8f8 JS |
141 | #define RISC_SYNC_RESYNC (1 << 15) |
142 | #define RISC_SYNC_FM1 0x06 | |
143 | #define RISC_SYNC_VRO 0x0C | |
1da177e4 LT |
144 | |
145 | #define RISC_FLUSH() bt->risc_pos = 0 | |
43f1a8f8 | 146 | #define RISC_INSTR(instr) bt->risc_cpu[bt->risc_pos++] = cpu_to_le32(instr) |
1da177e4 LT |
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) { | |
46c9fc86 | 161 | printk(KERN_ERR "bt878: buffer size error!\n"); |
1da177e4 LT |
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 | ||
43f1a8f8 | 177 | dprintk("bt878: risc len lines %u, bytes per line %u\n", |
1da177e4 LT |
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 | ||
466d725a | 223 | btwrite(bt->risc_dma, BT878_ARISC_START); |
1da177e4 LT |
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 | */ | |
43f1a8f8 JS |
232 | int_mask = BT878_ASCERR | BT878_AOCERR | BT878_APABORT | |
233 | BT878_ARIPERR | BT878_APPERR | BT878_AFDSR | BT878_AFTRGT | | |
1da177e4 LT |
234 | BT878_AFBUS | BT878_ARISCI; |
235 | ||
236 | ||
237 | /* ignore pesky bits */ | |
238 | int_mask &= ~irq_err_ignore; | |
43f1a8f8 | 239 | |
1da177e4 LT |
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 | ||
7d12e780 | 272 | static irqreturn_t bt878_irq(int irq, void *dev_id) |
1da177e4 LT |
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); */ | |
3a4fa0a2 | 287 | btwrite(astat, BT878_AINT_STAT); /* try to clear interrupt condition */ |
1da177e4 LT |
288 | |
289 | ||
290 | if (astat & (BT878_ASCERR | BT878_AOCERR)) { | |
291 | if (bt878_verbose) { | |
46c9fc86 AM |
292 | printk(KERN_INFO |
293 | "bt878(%d): irq%s%s risc_pc=%08x\n", | |
1da177e4 LT |
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) { | |
46c9fc86 AM |
303 | printk(KERN_INFO |
304 | "bt878(%d): irq%s%s%s risc_pc=%08x\n", | |
1da177e4 LT |
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) { | |
46c9fc86 AM |
316 | printk(KERN_INFO |
317 | "bt878(%d): irq%s%s%s risc_pc=%08x\n", | |
1da177e4 LT |
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; | |
3593cab5 | 349 | if (mutex_lock_interruptible(&bt->gpio_lock)) |
1da177e4 LT |
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 | } | |
3593cab5 | 380 | mutex_unlock(&bt->gpio_lock); |
1da177e4 LT |
381 | return retval; |
382 | } | |
383 | ||
384 | EXPORT_SYMBOL(bt878_device_control); | |
385 | ||
38690078 AM |
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 | } | |
6a5b28f9 | 393 | |
38690078 AM |
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 | { } | |
6a5b28f9 MA |
409 | }; |
410 | ||
38690078 AM |
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 | } | |
6a5b28f9 | 417 | |
1da177e4 LT |
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 | { | |
38690078 | 425 | int result = 0; |
1da177e4 LT |
426 | unsigned char lat; |
427 | struct bt878 *bt; | |
428 | #if defined(__powerpc__) | |
429 | unsigned int cmd; | |
430 | #endif | |
6a5b28f9 | 431 | unsigned int cardid; |
1da177e4 LT |
432 | |
433 | printk(KERN_INFO "bt878: Bt878 AUDIO function found (%d).\n", | |
434 | bt878_num); | |
77e0be12 SAH |
435 | if (bt878_num >= BT878_MAX) { |
436 | printk(KERN_ERR "bt878: Too many devices inserted\n"); | |
437 | result = -ENOMEM; | |
438 | goto fail0; | |
439 | } | |
1da177e4 LT |
440 | if (pci_enable_device(dev)) |
441 | return -EIO; | |
442 | ||
38690078 AM |
443 | cardid = dev->subsystem_device << 16; |
444 | cardid |= dev->subsystem_vendor; | |
6a5b28f9 | 445 | |
38690078 AM |
446 | printk(KERN_INFO "%s: card id=[0x%x],[ %s ] has DVB functions.\n", |
447 | __func__, cardid, card_name(pci_id)); | |
6a5b28f9 | 448 | |
1da177e4 LT |
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 | ||
abd34d8d | 463 | bt->revision = dev->revision; |
1da177e4 | 464 | pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat); |
6a5b28f9 MA |
465 | |
466 | ||
1da177e4 LT |
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, | |
8076fe32 | 492 | IRQF_SHARED | IRQF_DISABLED, "bt878", |
1da177e4 LT |
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 | ||
1da177e4 | 511 | if ((result = bt878_mem_alloc(bt))) { |
46c9fc86 | 512 | printk(KERN_ERR "bt878: failed to allocate memory!\n"); |
1da177e4 LT |
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) | |
46c9fc86 | 538 | printk(KERN_INFO "bt878(%d): unloading\n", bt->nr); |
1da177e4 LT |
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 | ||
1da177e4 | 572 | static struct pci_driver bt878_pci_driver = { |
50b215a0 | 573 | .name = "bt878", |
1da177e4 | 574 | .id_table = bt878_pci_tbl, |
50b215a0 | 575 | .probe = bt878_probe, |
e36bc31f | 576 | .remove = __devexit_p(bt878_remove), |
1da177e4 LT |
577 | }; |
578 | ||
1da177e4 LT |
579 | /*******************************/ |
580 | /* Module management functions */ | |
581 | /*******************************/ | |
582 | ||
310b2628 | 583 | static int __init bt878_init_module(void) |
1da177e4 LT |
584 | { |
585 | bt878_num = 0; | |
1da177e4 LT |
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); | |
2abf6dd8 | 591 | |
1da177e4 LT |
592 | return pci_register_driver(&bt878_pci_driver); |
593 | } | |
594 | ||
310b2628 | 595 | static void __exit bt878_cleanup_module(void) |
1da177e4 | 596 | { |
2abf6dd8 | 597 | pci_unregister_driver(&bt878_pci_driver); |
1da177e4 LT |
598 | } |
599 | ||
600 | module_init(bt878_init_module); | |
601 | module_exit(bt878_cleanup_module); | |
602 | ||
1da177e4 LT |
603 | MODULE_LICENSE("GPL"); |
604 | ||
605 | /* | |
606 | * Local variables: | |
607 | * c-basic-offset: 8 | |
608 | * End: | |
609 | */ |