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audit: complex interfield comparison helper
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / sound / pci / mixart / mixart_hwdep.c
blobbfbdc91e4cb30cc89ad028a8627a6204d2b12919
1 /*
2 * Driver for Digigram miXart soundcards
3 *
4 * DSP firmware management
5 *
6 * Copyright (c) 2003 by Digigram <alsa@digigram.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22
23 #include <linux/interrupt.h>
24 #include <linux/pci.h>
25 #include <linux/firmware.h>
26 #include <linux/vmalloc.h>
27 #include <linux/slab.h>
28 #include <linux/module.h>
29 #include <asm/io.h>
30 #include <sound/core.h>
31 #include "mixart.h"
32 #include "mixart_mixer.h"
33 #include "mixart_core.h"
34 #include "mixart_hwdep.h"
35
36
37 /**
38 * wait for a value on a peudo register, exit with a timeout
39 *
40 * @param mgr pointer to miXart manager structure
41 * @param offset unsigned pseudo_register base + offset of value
42 * @param value value
43 * @param timeout timeout in centisenconds
44 */
45 static int mixart_wait_nice_for_register_value(struct mixart_mgr *mgr,
46 u32 offset, int is_egal,
47 u32 value, unsigned long timeout)
48 {
49 unsigned long end_time = jiffies + (timeout * HZ / 100);
50 u32 read;
51
52 do { /* we may take too long time in this loop.
53 * so give controls back to kernel if needed.
54 */
55 cond_resched();
56
57 read = readl_be( MIXART_MEM( mgr, offset ));
58 if(is_egal) {
59 if(read == value) return 0;
60 }
61 else { /* wait for different value */
62 if(read != value) return 0;
63 }
64 } while ( time_after_eq(end_time, jiffies) );
65
66 return -EBUSY;
67 }
68
69
70 /*
71 structures needed to upload elf code packets
72 */
73 struct snd_mixart_elf32_ehdr {
74 u8 e_ident[16];
75 u16 e_type;
76 u16 e_machine;
77 u32 e_version;
78 u32 e_entry;
79 u32 e_phoff;
80 u32 e_shoff;
81 u32 e_flags;
82 u16 e_ehsize;
83 u16 e_phentsize;
84 u16 e_phnum;
85 u16 e_shentsize;
86 u16 e_shnum;
87 u16 e_shstrndx;
88 };
89
90 struct snd_mixart_elf32_phdr {
91 u32 p_type;
92 u32 p_offset;
93 u32 p_vaddr;
94 u32 p_paddr;
95 u32 p_filesz;
96 u32 p_memsz;
97 u32 p_flags;
98 u32 p_align;
99 };
100
101 static int mixart_load_elf(struct mixart_mgr *mgr, const struct firmware *dsp )
102 {
103 char elf32_magic_number[4] = {0x7f,'E','L','F'};
104 struct snd_mixart_elf32_ehdr *elf_header;
105 int i;
106
107 elf_header = (struct snd_mixart_elf32_ehdr *)dsp->data;
108 for( i=0; i<4; i++ )
109 if ( elf32_magic_number[i] != elf_header->e_ident[i] )
110 return -EINVAL;
111
112 if( elf_header->e_phoff != 0 ) {
113 struct snd_mixart_elf32_phdr elf_programheader;
114
115 for( i=0; i < be16_to_cpu(elf_header->e_phnum); i++ ) {
116 u32 pos = be32_to_cpu(elf_header->e_phoff) + (u32)(i * be16_to_cpu(elf_header->e_phentsize));
117
118 memcpy( &elf_programheader, dsp->data + pos, sizeof(elf_programheader) );
119
120 if(elf_programheader.p_type != 0) {
121 if( elf_programheader.p_filesz != 0 ) {
122 memcpy_toio( MIXART_MEM( mgr, be32_to_cpu(elf_programheader.p_vaddr)),
123 dsp->data + be32_to_cpu( elf_programheader.p_offset ),
124 be32_to_cpu( elf_programheader.p_filesz ));
125 }
126 }
127 }
128 }
129 return 0;
130 }
131
132 /*
133 * get basic information and init miXart
134 */
135
136 /* audio IDs for request to the board */
137 #define MIXART_FIRST_ANA_AUDIO_ID 0
138 #define MIXART_FIRST_DIG_AUDIO_ID 8
139
140 static int mixart_enum_connectors(struct mixart_mgr *mgr)
141 {
142 u32 k;
143 int err;
144 struct mixart_msg request;
145 struct mixart_enum_connector_resp *connector;
146 struct mixart_audio_info_req *audio_info_req;
147 struct mixart_audio_info_resp *audio_info;
148
149 connector = kmalloc(sizeof(*connector), GFP_KERNEL);
150 audio_info_req = kmalloc(sizeof(*audio_info_req), GFP_KERNEL);
151 audio_info = kmalloc(sizeof(*audio_info), GFP_KERNEL);
152 if (! connector || ! audio_info_req || ! audio_info) {
153 err = -ENOMEM;
154 goto __error;
155 }
156
157 audio_info_req->line_max_level = MIXART_FLOAT_P_22_0_TO_HEX;
158 audio_info_req->micro_max_level = MIXART_FLOAT_M_20_0_TO_HEX;
159 audio_info_req->cd_max_level = MIXART_FLOAT____0_0_TO_HEX;
160
161 request.message_id = MSG_SYSTEM_ENUM_PLAY_CONNECTOR;
162 request.uid = (struct mixart_uid){0,0}; /* board num = 0 */
163 request.data = NULL;
164 request.size = 0;
165
166 err = snd_mixart_send_msg(mgr, &request, sizeof(*connector), connector);
167 if((err < 0) || (connector->error_code) || (connector->uid_count > MIXART_MAX_PHYS_CONNECTORS)) {
168 snd_printk(KERN_ERR "error MSG_SYSTEM_ENUM_PLAY_CONNECTOR\n");
169 err = -EINVAL;
170 goto __error;
171 }
172
173 for(k=0; k < connector->uid_count; k++) {
174 struct mixart_pipe *pipe;
175
176 if(k < MIXART_FIRST_DIG_AUDIO_ID) {
177 pipe = &mgr->chip[k/2]->pipe_out_ana;
178 } else {
179 pipe = &mgr->chip[(k-MIXART_FIRST_DIG_AUDIO_ID)/2]->pipe_out_dig;
180 }
181 if(k & 1) {
182 pipe->uid_right_connector = connector->uid[k]; /* odd */
183 } else {
184 pipe->uid_left_connector = connector->uid[k]; /* even */
185 }
186
187 /* snd_printk(KERN_DEBUG "playback connector[%d].object_id = %x\n", k, connector->uid[k].object_id); */
188
189 /* TODO: really need send_msg MSG_CONNECTOR_GET_AUDIO_INFO for each connector ? perhaps for analog level caps ? */
190 request.message_id = MSG_CONNECTOR_GET_AUDIO_INFO;
191 request.uid = connector->uid[k];
192 request.data = audio_info_req;
193 request.size = sizeof(*audio_info_req);
194
195 err = snd_mixart_send_msg(mgr, &request, sizeof(*audio_info), audio_info);
196 if( err < 0 ) {
197 snd_printk(KERN_ERR "error MSG_CONNECTOR_GET_AUDIO_INFO\n");
198 goto __error;
199 }
200 /*snd_printk(KERN_DEBUG "play analog_info.analog_level_present = %x\n", audio_info->info.analog_info.analog_level_present);*/
201 }
202
203 request.message_id = MSG_SYSTEM_ENUM_RECORD_CONNECTOR;
204 request.uid = (struct mixart_uid){0,0}; /* board num = 0 */
205 request.data = NULL;
206 request.size = 0;
207
208 err = snd_mixart_send_msg(mgr, &request, sizeof(*connector), connector);
209 if((err < 0) || (connector->error_code) || (connector->uid_count > MIXART_MAX_PHYS_CONNECTORS)) {
210 snd_printk(KERN_ERR "error MSG_SYSTEM_ENUM_RECORD_CONNECTOR\n");
211 err = -EINVAL;
212 goto __error;
213 }
214
215 for(k=0; k < connector->uid_count; k++) {
216 struct mixart_pipe *pipe;
217
218 if(k < MIXART_FIRST_DIG_AUDIO_ID) {
219 pipe = &mgr->chip[k/2]->pipe_in_ana;
220 } else {
221 pipe = &mgr->chip[(k-MIXART_FIRST_DIG_AUDIO_ID)/2]->pipe_in_dig;
222 }
223 if(k & 1) {
224 pipe->uid_right_connector = connector->uid[k]; /* odd */
225 } else {
226 pipe->uid_left_connector = connector->uid[k]; /* even */
227 }
228
229 /* snd_printk(KERN_DEBUG "capture connector[%d].object_id = %x\n", k, connector->uid[k].object_id); */
230
231 /* TODO: really need send_msg MSG_CONNECTOR_GET_AUDIO_INFO for each connector ? perhaps for analog level caps ? */
232 request.message_id = MSG_CONNECTOR_GET_AUDIO_INFO;
233 request.uid = connector->uid[k];
234 request.data = audio_info_req;
235 request.size = sizeof(*audio_info_req);
236
237 err = snd_mixart_send_msg(mgr, &request, sizeof(*audio_info), audio_info);
238 if( err < 0 ) {
239 snd_printk(KERN_ERR "error MSG_CONNECTOR_GET_AUDIO_INFO\n");
240 goto __error;
241 }
242 /*snd_printk(KERN_DEBUG "rec analog_info.analog_level_present = %x\n", audio_info->info.analog_info.analog_level_present);*/
243 }
244 err = 0;
245
246 __error:
247 kfree(connector);
248 kfree(audio_info_req);
249 kfree(audio_info);
250
251 return err;
252 }
253
254 static int mixart_enum_physio(struct mixart_mgr *mgr)
255 {
256 u32 k;
257 int err;
258 struct mixart_msg request;
259 struct mixart_uid get_console_mgr;
260 struct mixart_return_uid console_mgr;
261 struct mixart_uid_enumeration phys_io;
262
263 /* get the uid for the console manager */
264 get_console_mgr.object_id = 0;
265 get_console_mgr.desc = MSG_CONSOLE_MANAGER | 0; /* cardindex = 0 */
266
267 request.message_id = MSG_CONSOLE_GET_CLOCK_UID;
268 request.uid = get_console_mgr;
269 request.data = &get_console_mgr;
270 request.size = sizeof(get_console_mgr);
271
272 err = snd_mixart_send_msg(mgr, &request, sizeof(console_mgr), &console_mgr);
273
274 if( (err < 0) || (console_mgr.error_code != 0) ) {
275 snd_printk(KERN_DEBUG "error MSG_CONSOLE_GET_CLOCK_UID : err=%x\n", console_mgr.error_code);
276 return -EINVAL;
277 }
278
279 /* used later for clock issues ! */
280 mgr->uid_console_manager = console_mgr.uid;
281
282 request.message_id = MSG_SYSTEM_ENUM_PHYSICAL_IO;
283 request.uid = (struct mixart_uid){0,0};
284 request.data = &console_mgr.uid;
285 request.size = sizeof(console_mgr.uid);
286
287 err = snd_mixart_send_msg(mgr, &request, sizeof(phys_io), &phys_io);
288 if( (err < 0) || ( phys_io.error_code != 0 ) ) {
289 snd_printk(KERN_ERR "error MSG_SYSTEM_ENUM_PHYSICAL_IO err(%x) error_code(%x)\n", err, phys_io.error_code );
290 return -EINVAL;
291 }
292
293 /* min 2 phys io per card (analog in + analog out) */
294 if (phys_io.nb_uid < MIXART_MAX_CARDS * 2)
295 return -EINVAL;
296
297 for(k=0; k<mgr->num_cards; k++) {
298 mgr->chip[k]->uid_in_analog_physio = phys_io.uid[k];
299 mgr->chip[k]->uid_out_analog_physio = phys_io.uid[phys_io.nb_uid/2 + k];
300 }
301
302 return 0;
303 }
304
305
306 static int mixart_first_init(struct mixart_mgr *mgr)
307 {
308 u32 k;
309 int err;
310 struct mixart_msg request;
311
312 if((err = mixart_enum_connectors(mgr)) < 0) return err;
313
314 if((err = mixart_enum_physio(mgr)) < 0) return err;
315
316 /* send a synchro command to card (necessary to do this before first MSG_STREAM_START_STREAM_GRP_PACKET) */
317 /* though why not here */
318 request.message_id = MSG_SYSTEM_SEND_SYNCHRO_CMD;
319 request.uid = (struct mixart_uid){0,0};
320 request.data = NULL;
321 request.size = 0;
322 /* this command has no data. response is a 32 bit status */
323 err = snd_mixart_send_msg(mgr, &request, sizeof(k), &k);
324 if( (err < 0) || (k != 0) ) {
325 snd_printk(KERN_ERR "error MSG_SYSTEM_SEND_SYNCHRO_CMD\n");
326 return err == 0 ? -EINVAL : err;
327 }
328
329 return 0;
330 }
331
332
333 /* firmware base addresses (when hard coded) */
334 #define MIXART_MOTHERBOARD_XLX_BASE_ADDRESS 0x00600000
335
336 static int mixart_dsp_load(struct mixart_mgr* mgr, int index, const struct firmware *dsp)
337 {
338 int err, card_index;
339 u32 status_xilinx, status_elf, status_daught;
340 u32 val;
341
342 /* read motherboard xilinx status */
343 status_xilinx = readl_be( MIXART_MEM( mgr,MIXART_PSEUDOREG_MXLX_STATUS_OFFSET ));
344 /* read elf status */
345 status_elf = readl_be( MIXART_MEM( mgr,MIXART_PSEUDOREG_ELF_STATUS_OFFSET ));
346 /* read daughterboard xilinx status */
347 status_daught = readl_be( MIXART_MEM( mgr,MIXART_PSEUDOREG_DXLX_STATUS_OFFSET ));
348
349 /* motherboard xilinx status 5 will say that the board is performing a reset */
350 if (status_xilinx == 5) {
351 snd_printk(KERN_ERR "miXart is resetting !\n");
352 return -EAGAIN; /* try again later */
353 }
354
355 switch (index) {
356 case MIXART_MOTHERBOARD_XLX_INDEX:
357
358 /* xilinx already loaded ? */
359 if (status_xilinx == 4) {
360 snd_printk(KERN_DEBUG "xilinx is already loaded !\n");
361 return 0;
362 }
363 /* the status should be 0 == "idle" */
364 if (status_xilinx != 0) {
365 snd_printk(KERN_ERR "xilinx load error ! status = %d\n",
366 status_xilinx);
367 return -EIO; /* modprob -r may help ? */
368 }
369
370 /* check xilinx validity */
371 if (((u32*)(dsp->data))[0] == 0xffffffff)
372 return -EINVAL;
373 if (dsp->size % 4)
374 return -EINVAL;
375
376 /* set xilinx status to copying */
377 writel_be( 1, MIXART_MEM( mgr, MIXART_PSEUDOREG_MXLX_STATUS_OFFSET ));
378
379 /* setup xilinx base address */
380 writel_be( MIXART_MOTHERBOARD_XLX_BASE_ADDRESS, MIXART_MEM( mgr,MIXART_PSEUDOREG_MXLX_BASE_ADDR_OFFSET ));
381 /* setup code size for xilinx file */
382 writel_be( dsp->size, MIXART_MEM( mgr, MIXART_PSEUDOREG_MXLX_SIZE_OFFSET ));
383
384 /* copy xilinx code */
385 memcpy_toio( MIXART_MEM( mgr, MIXART_MOTHERBOARD_XLX_BASE_ADDRESS), dsp->data, dsp->size);
386
387 /* set xilinx status to copy finished */
388 writel_be( 2, MIXART_MEM( mgr, MIXART_PSEUDOREG_MXLX_STATUS_OFFSET ));
389
390 /* return, because no further processing needed */
391 return 0;
392
393 case MIXART_MOTHERBOARD_ELF_INDEX:
394
395 if (status_elf == 4) {
396 snd_printk(KERN_DEBUG "elf file already loaded !\n");
397 return 0;
398 }
399
400 /* the status should be 0 == "idle" */
401 if (status_elf != 0) {
402 snd_printk(KERN_ERR "elf load error ! status = %d\n",
403 status_elf);
404 return -EIO; /* modprob -r may help ? */
405 }
406
407 /* wait for xilinx status == 4 */
408 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_MXLX_STATUS_OFFSET, 1, 4, 500); /* 5sec */
409 if (err < 0) {
410 snd_printk(KERN_ERR "xilinx was not loaded or "
411 "could not be started\n");
412 return err;
413 }
414
415 /* init some data on the card */
416 writel_be( 0, MIXART_MEM( mgr, MIXART_PSEUDOREG_BOARDNUMBER ) ); /* set miXart boardnumber to 0 */
417 writel_be( 0, MIXART_MEM( mgr, MIXART_FLOWTABLE_PTR ) ); /* reset pointer to flow table on miXart */
418
419 /* set elf status to copying */
420 writel_be( 1, MIXART_MEM( mgr, MIXART_PSEUDOREG_ELF_STATUS_OFFSET ));
421
422 /* process the copying of the elf packets */
423 err = mixart_load_elf( mgr, dsp );
424 if (err < 0) return err;
425
426 /* set elf status to copy finished */
427 writel_be( 2, MIXART_MEM( mgr, MIXART_PSEUDOREG_ELF_STATUS_OFFSET ));
428
429 /* wait for elf status == 4 */
430 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_ELF_STATUS_OFFSET, 1, 4, 300); /* 3sec */
431 if (err < 0) {
432 snd_printk(KERN_ERR "elf could not be started\n");
433 return err;
434 }
435
436 /* miXart waits at this point on the pointer to the flow table */
437 writel_be( (u32)mgr->flowinfo.addr, MIXART_MEM( mgr, MIXART_FLOWTABLE_PTR ) ); /* give pointer of flow table to miXart */
438
439 return 0; /* return, another xilinx file has to be loaded before */
440
441 case MIXART_AESEBUBOARD_XLX_INDEX:
442 default:
443
444 /* elf and xilinx should be loaded */
445 if (status_elf != 4 || status_xilinx != 4) {
446 printk(KERN_ERR "xilinx or elf not "
447 "successfully loaded\n");
448 return -EIO; /* modprob -r may help ? */
449 }
450
451 /* wait for daughter detection != 0 */
452 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_DBRD_PRESENCE_OFFSET, 0, 0, 30); /* 300msec */
453 if (err < 0) {
454 snd_printk(KERN_ERR "error starting elf file\n");
455 return err;
456 }
457
458 /* the board type can now be retrieved */
459 mgr->board_type = (DAUGHTER_TYPE_MASK & readl_be( MIXART_MEM( mgr, MIXART_PSEUDOREG_DBRD_TYPE_OFFSET)));
460
461 if (mgr->board_type == MIXART_DAUGHTER_TYPE_NONE)
462 break; /* no daughter board; the file does not have to be loaded, continue after the switch */
463
464 /* only if aesebu daughter board presence (elf code must run) */
465 if (mgr->board_type != MIXART_DAUGHTER_TYPE_AES )
466 return -EINVAL;
467
468 /* daughter should be idle */
469 if (status_daught != 0) {
470 printk(KERN_ERR "daughter load error ! status = %d\n",
471 status_daught);
472 return -EIO; /* modprob -r may help ? */
473 }
474
475 /* check daughterboard xilinx validity */
476 if (((u32*)(dsp->data))[0] == 0xffffffff)
477 return -EINVAL;
478 if (dsp->size % 4)
479 return -EINVAL;
480
481 /* inform mixart about the size of the file */
482 writel_be( dsp->size, MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_SIZE_OFFSET ));
483
484 /* set daughterboard status to 1 */
485 writel_be( 1, MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET ));
486
487 /* wait for status == 2 */
488 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET, 1, 2, 30); /* 300msec */
489 if (err < 0) {
490 snd_printk(KERN_ERR "daughter board load error\n");
491 return err;
492 }
493
494 /* get the address where to write the file */
495 val = readl_be( MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_BASE_ADDR_OFFSET ));
496 if (!val)
497 return -EINVAL;
498
499 /* copy daughterboard xilinx code */
500 memcpy_toio( MIXART_MEM( mgr, val), dsp->data, dsp->size);
501
502 /* set daughterboard status to 4 */
503 writel_be( 4, MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET ));
504
505 /* continue with init */
506 break;
507 } /* end of switch file index*/
508
509 /* wait for daughter status == 3 */
510 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET, 1, 3, 300); /* 3sec */
511 if (err < 0) {
512 snd_printk(KERN_ERR
513 "daughter board could not be initialised\n");
514 return err;
515 }
516
517 /* init mailbox (communication with embedded) */
518 snd_mixart_init_mailbox(mgr);
519
520 /* first communication with embedded */
521 err = mixart_first_init(mgr);
522 if (err < 0) {
523 snd_printk(KERN_ERR "miXart could not be set up\n");
524 return err;
525 }
526
527 /* create devices and mixer in accordance with HW options*/
528 for (card_index = 0; card_index < mgr->num_cards; card_index++) {
529 struct snd_mixart *chip = mgr->chip[card_index];
530
531 if ((err = snd_mixart_create_pcm(chip)) < 0)
532 return err;
533
534 if (card_index == 0) {
535 if ((err = snd_mixart_create_mixer(chip->mgr)) < 0)
536 return err;
537 }
538
539 if ((err = snd_card_register(chip->card)) < 0)
540 return err;
541 };
542
543 snd_printdd("miXart firmware downloaded and successfully set up\n");
544
545 return 0;
546 }
547
548
549 #if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE)
550 #if !defined(CONFIG_USE_MIXARTLOADER) && !defined(CONFIG_SND_MIXART) /* built-in kernel */
551 #define SND_MIXART_FW_LOADER /* use the standard firmware loader */
552 #endif
553 #endif
554
555 #ifdef SND_MIXART_FW_LOADER
556
557 int snd_mixart_setup_firmware(struct mixart_mgr *mgr)
558 {
559 static char *fw_files[3] = {
560 "miXart8.xlx", "miXart8.elf", "miXart8AES.xlx"
561 };
562 char path[32];
563
564 const struct firmware *fw_entry;
565 int i, err;
566
567 for (i = 0; i < 3; i++) {
568 sprintf(path, "mixart/%s", fw_files[i]);
569 if (request_firmware(&fw_entry, path, &mgr->pci->dev)) {
570 snd_printk(KERN_ERR "miXart: can't load firmware %s\n", path);
571 return -ENOENT;
572 }
573 /* fake hwdep dsp record */
574 err = mixart_dsp_load(mgr, i, fw_entry);
575 release_firmware(fw_entry);
576 if (err < 0)
577 return err;
578 mgr->dsp_loaded |= 1 << i;
579 }
580 return 0;
581 }
582
583 MODULE_FIRMWARE("mixart/miXart8.xlx");
584 MODULE_FIRMWARE("mixart/miXart8.elf");
585 MODULE_FIRMWARE("mixart/miXart8AES.xlx");
586
587 #else /* old style firmware loading */
588
589 /* miXart hwdep interface id string */
590 #define SND_MIXART_HWDEP_ID "miXart Loader"
591
592 static int mixart_hwdep_dsp_status(struct snd_hwdep *hw,
593 struct snd_hwdep_dsp_status *info)
594 {
595 struct mixart_mgr *mgr = hw->private_data;
596
597 strcpy(info->id, "miXart");
598 info->num_dsps = MIXART_HARDW_FILES_MAX_INDEX;
599
600 if (mgr->dsp_loaded & (1 << MIXART_MOTHERBOARD_ELF_INDEX))
601 info->chip_ready = 1;
602
603 info->version = MIXART_DRIVER_VERSION;
604 return 0;
605 }
606
607 static int mixart_hwdep_dsp_load(struct snd_hwdep *hw,
608 struct snd_hwdep_dsp_image *dsp)
609 {
610 struct mixart_mgr* mgr = hw->private_data;
611 struct firmware fw;
612 int err;
613
614 fw.size = dsp->length;
615 fw.data = vmalloc(dsp->length);
616 if (! fw.data) {
617 snd_printk(KERN_ERR "miXart: cannot allocate image size %d\n",
618 (int)dsp->length);
619 return -ENOMEM;
620 }
621 if (copy_from_user((void *) fw.data, dsp->image, dsp->length)) {
622 vfree(fw.data);
623 return -EFAULT;
624 }
625 err = mixart_dsp_load(mgr, dsp->index, &fw);
626 vfree(fw.data);
627 if (err < 0)
628 return err;
629 mgr->dsp_loaded |= 1 << dsp->index;
630 return err;
631 }
632
633 int snd_mixart_setup_firmware(struct mixart_mgr *mgr)
634 {
635 int err;
636 struct snd_hwdep *hw;
637
638 /* only create hwdep interface for first cardX (see "index" module parameter)*/
639 if ((err = snd_hwdep_new(mgr->chip[0]->card, SND_MIXART_HWDEP_ID, 0, &hw)) < 0)
640 return err;
641
642 hw->iface = SNDRV_HWDEP_IFACE_MIXART;
643 hw->private_data = mgr;
644 hw->ops.dsp_status = mixart_hwdep_dsp_status;
645 hw->ops.dsp_load = mixart_hwdep_dsp_load;
646 hw->exclusive = 1;
647 sprintf(hw->name, SND_MIXART_HWDEP_ID);
648 mgr->dsp_loaded = 0;
649
650 return snd_card_register(mgr->chip[0]->card);
651 }
652
653 #endif /* SND_MIXART_FW_LOADER */
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree