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 | ||
6850aeab JP |
104 | bt->buf_cpu = pci_zalloc_consistent(bt->dev, bt->buf_size, |
105 | &bt->buf_dma); | |
1da177e4 LT |
106 | if (!bt->buf_cpu) |
107 | return -ENOMEM; | |
1da177e4 LT |
108 | } |
109 | ||
110 | if (!bt->risc_cpu) { | |
111 | bt->risc_size = PAGE_SIZE; | |
6850aeab JP |
112 | bt->risc_cpu = pci_zalloc_consistent(bt->dev, bt->risc_size, |
113 | &bt->risc_dma); | |
1da177e4 LT |
114 | if (!bt->risc_cpu) { |
115 | bt878_mem_free(bt); | |
116 | return -ENOMEM; | |
117 | } | |
1da177e4 LT |
118 | } |
119 | ||
120 | return 0; | |
121 | } | |
122 | ||
123 | /* RISC instructions */ | |
43f1a8f8 JS |
124 | #define RISC_WRITE (0x01 << 28) |
125 | #define RISC_JUMP (0x07 << 28) | |
126 | #define RISC_SYNC (0x08 << 28) | |
1da177e4 LT |
127 | |
128 | /* RISC bits */ | |
43f1a8f8 JS |
129 | #define RISC_WR_SOL (1 << 27) |
130 | #define RISC_WR_EOL (1 << 26) | |
131 | #define RISC_IRQ (1 << 24) | |
1da177e4 | 132 | #define RISC_STATUS(status) ((((~status) & 0x0F) << 20) | ((status & 0x0F) << 16)) |
43f1a8f8 JS |
133 | #define RISC_SYNC_RESYNC (1 << 15) |
134 | #define RISC_SYNC_FM1 0x06 | |
135 | #define RISC_SYNC_VRO 0x0C | |
1da177e4 LT |
136 | |
137 | #define RISC_FLUSH() bt->risc_pos = 0 | |
43f1a8f8 | 138 | #define RISC_INSTR(instr) bt->risc_cpu[bt->risc_pos++] = cpu_to_le32(instr) |
1da177e4 LT |
139 | |
140 | static int bt878_make_risc(struct bt878 *bt) | |
141 | { | |
142 | bt->block_bytes = bt->buf_size >> 4; | |
143 | bt->block_count = 1 << 4; | |
144 | bt->line_bytes = bt->block_bytes; | |
145 | bt->line_count = bt->block_count; | |
146 | ||
147 | while (bt->line_bytes > 4095) { | |
148 | bt->line_bytes >>= 1; | |
149 | bt->line_count <<= 1; | |
150 | } | |
151 | ||
152 | if (bt->line_count > 255) { | |
46c9fc86 | 153 | printk(KERN_ERR "bt878: buffer size error!\n"); |
1da177e4 LT |
154 | return -EINVAL; |
155 | } | |
156 | return 0; | |
157 | } | |
158 | ||
159 | ||
160 | static void bt878_risc_program(struct bt878 *bt, u32 op_sync_orin) | |
161 | { | |
162 | u32 buf_pos = 0; | |
163 | u32 line; | |
164 | ||
165 | RISC_FLUSH(); | |
166 | RISC_INSTR(RISC_SYNC | RISC_SYNC_FM1 | op_sync_orin); | |
167 | RISC_INSTR(0); | |
168 | ||
43f1a8f8 | 169 | dprintk("bt878: risc len lines %u, bytes per line %u\n", |
1da177e4 LT |
170 | bt->line_count, bt->line_bytes); |
171 | for (line = 0; line < bt->line_count; line++) { | |
172 | // At the beginning of every block we issue an IRQ with previous (finished) block number set | |
173 | if (!(buf_pos % bt->block_bytes)) | |
174 | RISC_INSTR(RISC_WRITE | RISC_WR_SOL | RISC_WR_EOL | | |
175 | RISC_IRQ | | |
176 | RISC_STATUS(((buf_pos / | |
177 | bt->block_bytes) + | |
178 | (bt->block_count - | |
179 | 1)) % | |
180 | bt->block_count) | bt-> | |
181 | line_bytes); | |
182 | else | |
183 | RISC_INSTR(RISC_WRITE | RISC_WR_SOL | RISC_WR_EOL | | |
184 | bt->line_bytes); | |
185 | RISC_INSTR(bt->buf_dma + buf_pos); | |
186 | buf_pos += bt->line_bytes; | |
187 | } | |
188 | ||
189 | RISC_INSTR(RISC_SYNC | op_sync_orin | RISC_SYNC_VRO); | |
190 | RISC_INSTR(0); | |
191 | ||
192 | RISC_INSTR(RISC_JUMP); | |
193 | RISC_INSTR(bt->risc_dma); | |
194 | ||
195 | btwrite((bt->line_count << 16) | bt->line_bytes, BT878_APACK_LEN); | |
196 | } | |
197 | ||
198 | /*****************************/ | |
199 | /* Start/Stop grabbing funcs */ | |
200 | /*****************************/ | |
201 | ||
202 | void bt878_start(struct bt878 *bt, u32 controlreg, u32 op_sync_orin, | |
203 | u32 irq_err_ignore) | |
204 | { | |
205 | u32 int_mask; | |
206 | ||
207 | dprintk("bt878 debug: bt878_start (ctl=%8.8x)\n", controlreg); | |
208 | /* complete the writing of the risc dma program now we have | |
209 | * the card specifics | |
210 | */ | |
211 | bt878_risc_program(bt, op_sync_orin); | |
212 | controlreg &= ~0x1f; | |
213 | controlreg |= 0x1b; | |
214 | ||
466d725a | 215 | btwrite(bt->risc_dma, BT878_ARISC_START); |
1da177e4 LT |
216 | |
217 | /* original int mask had : | |
218 | * 6 2 8 4 0 | |
219 | * 1111 1111 1000 0000 0000 | |
220 | * SCERR|OCERR|PABORT|RIPERR|FDSR|FTRGT|FBUS|RISCI | |
221 | * Hacked for DST to: | |
222 | * SCERR | OCERR | FDSR | FTRGT | FBUS | RISCI | |
223 | */ | |
43f1a8f8 JS |
224 | int_mask = BT878_ASCERR | BT878_AOCERR | BT878_APABORT | |
225 | BT878_ARIPERR | BT878_APPERR | BT878_AFDSR | BT878_AFTRGT | | |
1da177e4 LT |
226 | BT878_AFBUS | BT878_ARISCI; |
227 | ||
228 | ||
229 | /* ignore pesky bits */ | |
230 | int_mask &= ~irq_err_ignore; | |
43f1a8f8 | 231 | |
1da177e4 LT |
232 | btwrite(int_mask, BT878_AINT_MASK); |
233 | btwrite(controlreg, BT878_AGPIO_DMA_CTL); | |
234 | } | |
235 | ||
236 | void bt878_stop(struct bt878 *bt) | |
237 | { | |
238 | u32 stat; | |
239 | int i = 0; | |
240 | ||
241 | dprintk("bt878 debug: bt878_stop\n"); | |
242 | ||
243 | btwrite(0, BT878_AINT_MASK); | |
244 | btand(~0x13, BT878_AGPIO_DMA_CTL); | |
245 | ||
246 | do { | |
247 | stat = btread(BT878_AINT_STAT); | |
248 | if (!(stat & BT878_ARISC_EN)) | |
249 | break; | |
250 | i++; | |
251 | } while (i < 500); | |
252 | ||
253 | dprintk("bt878(%d) debug: bt878_stop, i=%d, stat=0x%8.8x\n", | |
254 | bt->nr, i, stat); | |
255 | } | |
256 | ||
257 | EXPORT_SYMBOL(bt878_start); | |
258 | EXPORT_SYMBOL(bt878_stop); | |
259 | ||
260 | /*****************************/ | |
261 | /* Interrupt service routine */ | |
262 | /*****************************/ | |
263 | ||
7d12e780 | 264 | static irqreturn_t bt878_irq(int irq, void *dev_id) |
1da177e4 LT |
265 | { |
266 | u32 stat, astat, mask; | |
267 | int count; | |
268 | struct bt878 *bt; | |
269 | ||
270 | bt = (struct bt878 *) dev_id; | |
271 | ||
272 | count = 0; | |
273 | while (1) { | |
274 | stat = btread(BT878_AINT_STAT); | |
275 | mask = btread(BT878_AINT_MASK); | |
276 | if (!(astat = (stat & mask))) | |
277 | return IRQ_NONE; /* this interrupt is not for me */ | |
278 | /* dprintk("bt878(%d) debug: irq count %d, stat 0x%8.8x, mask 0x%8.8x\n",bt->nr,count,stat,mask); */ | |
3a4fa0a2 | 279 | btwrite(astat, BT878_AINT_STAT); /* try to clear interrupt condition */ |
1da177e4 LT |
280 | |
281 | ||
282 | if (astat & (BT878_ASCERR | BT878_AOCERR)) { | |
283 | if (bt878_verbose) { | |
46c9fc86 AM |
284 | printk(KERN_INFO |
285 | "bt878(%d): irq%s%s risc_pc=%08x\n", | |
1da177e4 LT |
286 | bt->nr, |
287 | (astat & BT878_ASCERR) ? " SCERR" : | |
288 | "", | |
289 | (astat & BT878_AOCERR) ? " OCERR" : | |
290 | "", btread(BT878_ARISC_PC)); | |
291 | } | |
292 | } | |
293 | if (astat & (BT878_APABORT | BT878_ARIPERR | BT878_APPERR)) { | |
294 | if (bt878_verbose) { | |
46c9fc86 AM |
295 | printk(KERN_INFO |
296 | "bt878(%d): irq%s%s%s risc_pc=%08x\n", | |
1da177e4 LT |
297 | bt->nr, |
298 | (astat & BT878_APABORT) ? " PABORT" : | |
299 | "", | |
300 | (astat & BT878_ARIPERR) ? " RIPERR" : | |
301 | "", | |
302 | (astat & BT878_APPERR) ? " PPERR" : | |
303 | "", btread(BT878_ARISC_PC)); | |
304 | } | |
305 | } | |
306 | if (astat & (BT878_AFDSR | BT878_AFTRGT | BT878_AFBUS)) { | |
307 | if (bt878_verbose) { | |
46c9fc86 AM |
308 | printk(KERN_INFO |
309 | "bt878(%d): irq%s%s%s risc_pc=%08x\n", | |
1da177e4 LT |
310 | bt->nr, |
311 | (astat & BT878_AFDSR) ? " FDSR" : "", | |
312 | (astat & BT878_AFTRGT) ? " FTRGT" : | |
313 | "", | |
314 | (astat & BT878_AFBUS) ? " FBUS" : "", | |
315 | btread(BT878_ARISC_PC)); | |
316 | } | |
317 | } | |
318 | if (astat & BT878_ARISCI) { | |
319 | bt->finished_block = (stat & BT878_ARISCS) >> 28; | |
320 | tasklet_schedule(&bt->tasklet); | |
321 | break; | |
322 | } | |
323 | count++; | |
324 | if (count > 20) { | |
325 | btwrite(0, BT878_AINT_MASK); | |
326 | printk(KERN_ERR | |
327 | "bt878(%d): IRQ lockup, cleared int mask\n", | |
328 | bt->nr); | |
329 | break; | |
330 | } | |
331 | } | |
332 | return IRQ_HANDLED; | |
333 | } | |
334 | ||
335 | int | |
336 | bt878_device_control(struct bt878 *bt, unsigned int cmd, union dst_gpio_packet *mp) | |
337 | { | |
338 | int retval; | |
339 | ||
340 | retval = 0; | |
3593cab5 | 341 | if (mutex_lock_interruptible(&bt->gpio_lock)) |
1da177e4 LT |
342 | return -ERESTARTSYS; |
343 | /* special gpio signal */ | |
344 | switch (cmd) { | |
345 | case DST_IG_ENABLE: | |
346 | // dprintk("dvb_bt8xx: dst enable mask 0x%02x enb 0x%02x \n", mp->dstg.enb.mask, mp->dstg.enb.enable); | |
347 | retval = bttv_gpio_enable(bt->bttv_nr, | |
348 | mp->enb.mask, | |
349 | mp->enb.enable); | |
350 | break; | |
351 | case DST_IG_WRITE: | |
352 | // dprintk("dvb_bt8xx: dst write gpio mask 0x%02x out 0x%02x\n", mp->dstg.outp.mask, mp->dstg.outp.highvals); | |
353 | retval = bttv_write_gpio(bt->bttv_nr, | |
354 | mp->outp.mask, | |
355 | mp->outp.highvals); | |
356 | ||
357 | break; | |
358 | case DST_IG_READ: | |
359 | /* read */ | |
360 | retval = bttv_read_gpio(bt->bttv_nr, &mp->rd.value); | |
361 | // dprintk("dvb_bt8xx: dst read gpio 0x%02x\n", (unsigned)mp->dstg.rd.value); | |
362 | break; | |
363 | case DST_IG_TS: | |
364 | /* Set packet size */ | |
365 | bt->TS_Size = mp->psize; | |
366 | break; | |
367 | ||
368 | default: | |
369 | retval = -EINVAL; | |
370 | break; | |
371 | } | |
3593cab5 | 372 | mutex_unlock(&bt->gpio_lock); |
1da177e4 LT |
373 | return retval; |
374 | } | |
375 | ||
376 | EXPORT_SYMBOL(bt878_device_control); | |
377 | ||
38690078 AM |
378 | #define BROOKTREE_878_DEVICE(vend, dev, name) \ |
379 | { \ | |
380 | .vendor = PCI_VENDOR_ID_BROOKTREE, \ | |
381 | .device = PCI_DEVICE_ID_BROOKTREE_878, \ | |
382 | .subvendor = (vend), .subdevice = (dev), \ | |
383 | .driver_data = (unsigned long) name \ | |
384 | } | |
6a5b28f9 | 385 | |
4c62e976 | 386 | static struct pci_device_id bt878_pci_tbl[] = { |
38690078 AM |
387 | BROOKTREE_878_DEVICE(0x0071, 0x0101, "Nebula Electronics DigiTV"), |
388 | BROOKTREE_878_DEVICE(0x1461, 0x0761, "AverMedia AverTV DVB-T 761"), | |
389 | BROOKTREE_878_DEVICE(0x11bd, 0x001c, "Pinnacle PCTV Sat"), | |
390 | BROOKTREE_878_DEVICE(0x11bd, 0x0026, "Pinnacle PCTV SAT CI"), | |
391 | BROOKTREE_878_DEVICE(0x1822, 0x0001, "Twinhan VisionPlus DVB"), | |
392 | BROOKTREE_878_DEVICE(0x270f, 0xfc00, | |
393 | "ChainTech digitop DST-1000 DVB-S"), | |
394 | BROOKTREE_878_DEVICE(0x1461, 0x0771, "AVermedia AverTV DVB-T 771"), | |
395 | BROOKTREE_878_DEVICE(0x18ac, 0xdb10, "DViCO FusionHDTV DVB-T Lite"), | |
396 | BROOKTREE_878_DEVICE(0x18ac, 0xdb11, "Ultraview DVB-T Lite"), | |
397 | BROOKTREE_878_DEVICE(0x18ac, 0xd500, "DViCO FusionHDTV 5 Lite"), | |
398 | BROOKTREE_878_DEVICE(0x7063, 0x2000, "pcHDTV HD-2000 TV"), | |
399 | BROOKTREE_878_DEVICE(0x1822, 0x0026, "DNTV Live! Mini"), | |
400 | { } | |
6a5b28f9 MA |
401 | }; |
402 | ||
38690078 AM |
403 | MODULE_DEVICE_TABLE(pci, bt878_pci_tbl); |
404 | ||
4c62e976 | 405 | static const char * card_name(const struct pci_device_id *id) |
38690078 AM |
406 | { |
407 | return id->driver_data ? (const char *)id->driver_data : "Unknown"; | |
408 | } | |
6a5b28f9 | 409 | |
1da177e4 LT |
410 | /***********************/ |
411 | /* PCI device handling */ | |
412 | /***********************/ | |
413 | ||
4c62e976 | 414 | static int bt878_probe(struct pci_dev *dev, const struct pci_device_id *pci_id) |
1da177e4 | 415 | { |
38690078 | 416 | int result = 0; |
1da177e4 LT |
417 | unsigned char lat; |
418 | struct bt878 *bt; | |
419 | #if defined(__powerpc__) | |
420 | unsigned int cmd; | |
421 | #endif | |
6a5b28f9 | 422 | unsigned int cardid; |
1da177e4 LT |
423 | |
424 | printk(KERN_INFO "bt878: Bt878 AUDIO function found (%d).\n", | |
425 | bt878_num); | |
77e0be12 SAH |
426 | if (bt878_num >= BT878_MAX) { |
427 | printk(KERN_ERR "bt878: Too many devices inserted\n"); | |
428 | result = -ENOMEM; | |
429 | goto fail0; | |
430 | } | |
1da177e4 LT |
431 | if (pci_enable_device(dev)) |
432 | return -EIO; | |
433 | ||
38690078 AM |
434 | cardid = dev->subsystem_device << 16; |
435 | cardid |= dev->subsystem_vendor; | |
6a5b28f9 | 436 | |
38690078 AM |
437 | printk(KERN_INFO "%s: card id=[0x%x],[ %s ] has DVB functions.\n", |
438 | __func__, cardid, card_name(pci_id)); | |
6a5b28f9 | 439 | |
1da177e4 LT |
440 | bt = &bt878[bt878_num]; |
441 | bt->dev = dev; | |
442 | bt->nr = bt878_num; | |
443 | bt->shutdown = 0; | |
444 | ||
445 | bt->id = dev->device; | |
446 | bt->irq = dev->irq; | |
447 | bt->bt878_adr = pci_resource_start(dev, 0); | |
448 | if (!request_mem_region(pci_resource_start(dev, 0), | |
449 | pci_resource_len(dev, 0), "bt878")) { | |
450 | result = -EBUSY; | |
451 | goto fail0; | |
452 | } | |
453 | ||
abd34d8d | 454 | bt->revision = dev->revision; |
1da177e4 | 455 | pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat); |
6a5b28f9 MA |
456 | |
457 | ||
1da177e4 LT |
458 | printk(KERN_INFO "bt878(%d): Bt%x (rev %d) at %02x:%02x.%x, ", |
459 | bt878_num, bt->id, bt->revision, dev->bus->number, | |
460 | PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn)); | |
461 | printk("irq: %d, latency: %d, memory: 0x%lx\n", | |
462 | bt->irq, lat, bt->bt878_adr); | |
463 | ||
464 | ||
465 | #if defined(__powerpc__) | |
466 | /* on OpenFirmware machines (PowerMac at least), PCI memory cycle */ | |
467 | /* response on cards with no firmware is not enabled by OF */ | |
468 | pci_read_config_dword(dev, PCI_COMMAND, &cmd); | |
469 | cmd = (cmd | PCI_COMMAND_MEMORY); | |
470 | pci_write_config_dword(dev, PCI_COMMAND, cmd); | |
471 | #endif | |
472 | ||
473 | #ifdef __sparc__ | |
474 | bt->bt878_mem = (unsigned char *) bt->bt878_adr; | |
475 | #else | |
476 | bt->bt878_mem = ioremap(bt->bt878_adr, 0x1000); | |
477 | #endif | |
478 | ||
479 | /* clear interrupt mask */ | |
480 | btwrite(0, BT848_INT_MASK); | |
481 | ||
482 | result = request_irq(bt->irq, bt878_irq, | |
3e018fe4 | 483 | IRQF_SHARED, "bt878", (void *) bt); |
1da177e4 LT |
484 | if (result == -EINVAL) { |
485 | printk(KERN_ERR "bt878(%d): Bad irq number or handler\n", | |
486 | bt878_num); | |
487 | goto fail1; | |
488 | } | |
489 | if (result == -EBUSY) { | |
490 | printk(KERN_ERR | |
491 | "bt878(%d): IRQ %d busy, change your PnP config in BIOS\n", | |
492 | bt878_num, bt->irq); | |
493 | goto fail1; | |
494 | } | |
495 | if (result < 0) | |
496 | goto fail1; | |
497 | ||
498 | pci_set_master(dev); | |
499 | pci_set_drvdata(dev, bt); | |
500 | ||
1da177e4 | 501 | if ((result = bt878_mem_alloc(bt))) { |
46c9fc86 | 502 | printk(KERN_ERR "bt878: failed to allocate memory!\n"); |
1da177e4 LT |
503 | goto fail2; |
504 | } | |
505 | ||
506 | bt878_make_risc(bt); | |
507 | btwrite(0, BT878_AINT_MASK); | |
508 | bt878_num++; | |
509 | ||
510 | return 0; | |
511 | ||
512 | fail2: | |
513 | free_irq(bt->irq, bt); | |
514 | fail1: | |
515 | release_mem_region(pci_resource_start(bt->dev, 0), | |
516 | pci_resource_len(bt->dev, 0)); | |
517 | fail0: | |
518 | pci_disable_device(dev); | |
519 | return result; | |
520 | } | |
521 | ||
4c62e976 | 522 | static void bt878_remove(struct pci_dev *pci_dev) |
1da177e4 LT |
523 | { |
524 | u8 command; | |
525 | struct bt878 *bt = pci_get_drvdata(pci_dev); | |
526 | ||
527 | if (bt878_verbose) | |
46c9fc86 | 528 | printk(KERN_INFO "bt878(%d): unloading\n", bt->nr); |
1da177e4 LT |
529 | |
530 | /* turn off all capturing, DMA and IRQs */ | |
531 | btand(~0x13, BT878_AGPIO_DMA_CTL); | |
532 | ||
533 | /* first disable interrupts before unmapping the memory! */ | |
534 | btwrite(0, BT878_AINT_MASK); | |
535 | btwrite(~0U, BT878_AINT_STAT); | |
536 | ||
537 | /* disable PCI bus-mastering */ | |
538 | pci_read_config_byte(bt->dev, PCI_COMMAND, &command); | |
539 | /* Should this be &=~ ?? */ | |
540 | command &= ~PCI_COMMAND_MASTER; | |
541 | pci_write_config_byte(bt->dev, PCI_COMMAND, command); | |
542 | ||
543 | free_irq(bt->irq, bt); | |
544 | printk(KERN_DEBUG "bt878_mem: 0x%p.\n", bt->bt878_mem); | |
545 | if (bt->bt878_mem) | |
546 | iounmap(bt->bt878_mem); | |
547 | ||
548 | release_mem_region(pci_resource_start(bt->dev, 0), | |
549 | pci_resource_len(bt->dev, 0)); | |
550 | /* wake up any waiting processes | |
551 | because shutdown flag is set, no new processes (in this queue) | |
552 | are expected | |
553 | */ | |
554 | bt->shutdown = 1; | |
555 | bt878_mem_free(bt); | |
556 | ||
1da177e4 LT |
557 | pci_disable_device(pci_dev); |
558 | return; | |
559 | } | |
560 | ||
1da177e4 | 561 | static struct pci_driver bt878_pci_driver = { |
50b215a0 | 562 | .name = "bt878", |
1da177e4 | 563 | .id_table = bt878_pci_tbl, |
50b215a0 | 564 | .probe = bt878_probe, |
4c62e976 | 565 | .remove = bt878_remove, |
1da177e4 LT |
566 | }; |
567 | ||
1da177e4 LT |
568 | /*******************************/ |
569 | /* Module management functions */ | |
570 | /*******************************/ | |
571 | ||
310b2628 | 572 | static int __init bt878_init_module(void) |
1da177e4 LT |
573 | { |
574 | bt878_num = 0; | |
1da177e4 LT |
575 | |
576 | printk(KERN_INFO "bt878: AUDIO driver version %d.%d.%d loaded\n", | |
577 | (BT878_VERSION_CODE >> 16) & 0xff, | |
578 | (BT878_VERSION_CODE >> 8) & 0xff, | |
579 | BT878_VERSION_CODE & 0xff); | |
2abf6dd8 | 580 | |
1da177e4 LT |
581 | return pci_register_driver(&bt878_pci_driver); |
582 | } | |
583 | ||
310b2628 | 584 | static void __exit bt878_cleanup_module(void) |
1da177e4 | 585 | { |
2abf6dd8 | 586 | pci_unregister_driver(&bt878_pci_driver); |
1da177e4 LT |
587 | } |
588 | ||
589 | module_init(bt878_init_module); | |
590 | module_exit(bt878_cleanup_module); | |
591 | ||
1da177e4 | 592 | MODULE_LICENSE("GPL"); |