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TTY: ldisc, do not close until there are readers
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / sound / pci / mixart / mixart_hwdep.c
blobbf2696aa5d49021db7c1b37bdbf5a7968c16ae93
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 <asm/io.h>
29 #include <sound/core.h>
30 #include "mixart.h"
31 #include "mixart_mixer.h"
32 #include "mixart_core.h"
33 #include "mixart_hwdep.h"
34
35
36 /**
37 * wait for a value on a peudo register, exit with a timeout
38 *
39 * @param mgr pointer to miXart manager structure
40 * @param offset unsigned pseudo_register base + offset of value
41 * @param value value
42 * @param timeout timeout in centisenconds
43 */
44 static int mixart_wait_nice_for_register_value(struct mixart_mgr *mgr,
45 u32 offset, int is_egal,
46 u32 value, unsigned long timeout)
47 {
48 unsigned long end_time = jiffies + (timeout * HZ / 100);
49 u32 read;
50
51 do { /* we may take too long time in this loop.
52 * so give controls back to kernel if needed.
53 */
54 cond_resched();
55
56 read = readl_be( MIXART_MEM( mgr, offset ));
57 if(is_egal) {
58 if(read == value) return 0;
59 }
60 else { /* wait for different value */
61 if(read != value) return 0;
62 }
63 } while ( time_after_eq(end_time, jiffies) );
64
65 return -EBUSY;
66 }
67
68
69 /*
70 structures needed to upload elf code packets
71 */
72 struct snd_mixart_elf32_ehdr {
73 u8 e_ident[16];
74 u16 e_type;
75 u16 e_machine;
76 u32 e_version;
77 u32 e_entry;
78 u32 e_phoff;
79 u32 e_shoff;
80 u32 e_flags;
81 u16 e_ehsize;
82 u16 e_phentsize;
83 u16 e_phnum;
84 u16 e_shentsize;
85 u16 e_shnum;
86 u16 e_shstrndx;
87 };
88
89 struct snd_mixart_elf32_phdr {
90 u32 p_type;
91 u32 p_offset;
92 u32 p_vaddr;
93 u32 p_paddr;
94 u32 p_filesz;
95 u32 p_memsz;
96 u32 p_flags;
97 u32 p_align;
98 };
99
100 static int mixart_load_elf(struct mixart_mgr *mgr, const struct firmware *dsp )
101 {
102 char elf32_magic_number[4] = {0x7f,'E','L','F'};
103 struct snd_mixart_elf32_ehdr *elf_header;
104 int i;
105
106 elf_header = (struct snd_mixart_elf32_ehdr *)dsp->data;
107 for( i=0; i<4; i++ )
108 if ( elf32_magic_number[i] != elf_header->e_ident[i] )
109 return -EINVAL;
110
111 if( elf_header->e_phoff != 0 ) {
112 struct snd_mixart_elf32_phdr elf_programheader;
113
114 for( i=0; i < be16_to_cpu(elf_header->e_phnum); i++ ) {
115 u32 pos = be32_to_cpu(elf_header->e_phoff) + (u32)(i * be16_to_cpu(elf_header->e_phentsize));
116
117 memcpy( &elf_programheader, dsp->data + pos, sizeof(elf_programheader) );
118
119 if(elf_programheader.p_type != 0) {
120 if( elf_programheader.p_filesz != 0 ) {
121 memcpy_toio( MIXART_MEM( mgr, be32_to_cpu(elf_programheader.p_vaddr)),
122 dsp->data + be32_to_cpu( elf_programheader.p_offset ),
123 be32_to_cpu( elf_programheader.p_filesz ));
124 }
125 }
126 }
127 }
128 return 0;
129 }
130
131 /*
132 * get basic information and init miXart
133 */
134
135 /* audio IDs for request to the board */
136 #define MIXART_FIRST_ANA_AUDIO_ID 0
137 #define MIXART_FIRST_DIG_AUDIO_ID 8
138
139 static int mixart_enum_connectors(struct mixart_mgr *mgr)
140 {
141 u32 k;
142 int err;
143 struct mixart_msg request;
144 struct mixart_enum_connector_resp *connector;
145 struct mixart_audio_info_req *audio_info_req;
146 struct mixart_audio_info_resp *audio_info;
147
148 connector = kmalloc(sizeof(*connector), GFP_KERNEL);
149 audio_info_req = kmalloc(sizeof(*audio_info_req), GFP_KERNEL);
150 audio_info = kmalloc(sizeof(*audio_info), GFP_KERNEL);
151 if (! connector || ! audio_info_req || ! audio_info) {
152 err = -ENOMEM;
153 goto __error;
154 }
155
156 audio_info_req->line_max_level = MIXART_FLOAT_P_22_0_TO_HEX;
157 audio_info_req->micro_max_level = MIXART_FLOAT_M_20_0_TO_HEX;
158 audio_info_req->cd_max_level = MIXART_FLOAT____0_0_TO_HEX;
159
160 request.message_id = MSG_SYSTEM_ENUM_PLAY_CONNECTOR;
161 request.uid = (struct mixart_uid){0,0}; /* board num = 0 */
162 request.data = NULL;
163 request.size = 0;
164
165 err = snd_mixart_send_msg(mgr, &request, sizeof(*connector), connector);
166 if((err < 0) || (connector->error_code) || (connector->uid_count > MIXART_MAX_PHYS_CONNECTORS)) {
167 snd_printk(KERN_ERR "error MSG_SYSTEM_ENUM_PLAY_CONNECTOR\n");
168 err = -EINVAL;
169 goto __error;
170 }
171
172 for(k=0; k < connector->uid_count; k++) {
173 struct mixart_pipe *pipe;
174
175 if(k < MIXART_FIRST_DIG_AUDIO_ID) {
176 pipe = &mgr->chip[k/2]->pipe_out_ana;
177 } else {
178 pipe = &mgr->chip[(k-MIXART_FIRST_DIG_AUDIO_ID)/2]->pipe_out_dig;
179 }
180 if(k & 1) {
181 pipe->uid_right_connector = connector->uid[k]; /* odd */
182 } else {
183 pipe->uid_left_connector = connector->uid[k]; /* even */
184 }
185
186 /* snd_printk(KERN_DEBUG "playback connector[%d].object_id = %x\n", k, connector->uid[k].object_id); */
187
188 /* TODO: really need send_msg MSG_CONNECTOR_GET_AUDIO_INFO for each connector ? perhaps for analog level caps ? */
189 request.message_id = MSG_CONNECTOR_GET_AUDIO_INFO;
190 request.uid = connector->uid[k];
191 request.data = audio_info_req;
192 request.size = sizeof(*audio_info_req);
193
194 err = snd_mixart_send_msg(mgr, &request, sizeof(*audio_info), audio_info);
195 if( err < 0 ) {
196 snd_printk(KERN_ERR "error MSG_CONNECTOR_GET_AUDIO_INFO\n");
197 goto __error;
198 }
199 /*snd_printk(KERN_DEBUG "play analog_info.analog_level_present = %x\n", audio_info->info.analog_info.analog_level_present);*/
200 }
201
202 request.message_id = MSG_SYSTEM_ENUM_RECORD_CONNECTOR;
203 request.uid = (struct mixart_uid){0,0}; /* board num = 0 */
204 request.data = NULL;
205 request.size = 0;
206
207 err = snd_mixart_send_msg(mgr, &request, sizeof(*connector), connector);
208 if((err < 0) || (connector->error_code) || (connector->uid_count > MIXART_MAX_PHYS_CONNECTORS)) {
209 snd_printk(KERN_ERR "error MSG_SYSTEM_ENUM_RECORD_CONNECTOR\n");
210 err = -EINVAL;
211 goto __error;
212 }
213
214 for(k=0; k < connector->uid_count; k++) {
215 struct mixart_pipe *pipe;
216
217 if(k < MIXART_FIRST_DIG_AUDIO_ID) {
218 pipe = &mgr->chip[k/2]->pipe_in_ana;
219 } else {
220 pipe = &mgr->chip[(k-MIXART_FIRST_DIG_AUDIO_ID)/2]->pipe_in_dig;
221 }
222 if(k & 1) {
223 pipe->uid_right_connector = connector->uid[k]; /* odd */
224 } else {
225 pipe->uid_left_connector = connector->uid[k]; /* even */
226 }
227
228 /* snd_printk(KERN_DEBUG "capture connector[%d].object_id = %x\n", k, connector->uid[k].object_id); */
229
230 /* TODO: really need send_msg MSG_CONNECTOR_GET_AUDIO_INFO for each connector ? perhaps for analog level caps ? */
231 request.message_id = MSG_CONNECTOR_GET_AUDIO_INFO;
232 request.uid = connector->uid[k];
233 request.data = audio_info_req;
234 request.size = sizeof(*audio_info_req);
235
236 err = snd_mixart_send_msg(mgr, &request, sizeof(*audio_info), audio_info);
237 if( err < 0 ) {
238 snd_printk(KERN_ERR "error MSG_CONNECTOR_GET_AUDIO_INFO\n");
239 goto __error;
240 }
241 /*snd_printk(KERN_DEBUG "rec analog_info.analog_level_present = %x\n", audio_info->info.analog_info.analog_level_present);*/
242 }
243 err = 0;
244
245 __error:
246 kfree(connector);
247 kfree(audio_info_req);
248 kfree(audio_info);
249
250 return err;
251 }
252
253 static int mixart_enum_physio(struct mixart_mgr *mgr)
254 {
255 u32 k;
256 int err;
257 struct mixart_msg request;
258 struct mixart_uid get_console_mgr;
259 struct mixart_return_uid console_mgr;
260 struct mixart_uid_enumeration phys_io;
261
262 /* get the uid for the console manager */
263 get_console_mgr.object_id = 0;
264 get_console_mgr.desc = MSG_CONSOLE_MANAGER | 0; /* cardindex = 0 */
265
266 request.message_id = MSG_CONSOLE_GET_CLOCK_UID;
267 request.uid = get_console_mgr;
268 request.data = &get_console_mgr;
269 request.size = sizeof(get_console_mgr);
270
271 err = snd_mixart_send_msg(mgr, &request, sizeof(console_mgr), &console_mgr);
272
273 if( (err < 0) || (console_mgr.error_code != 0) ) {
274 snd_printk(KERN_DEBUG "error MSG_CONSOLE_GET_CLOCK_UID : err=%x\n", console_mgr.error_code);
275 return -EINVAL;
276 }
277
278 /* used later for clock issues ! */
279 mgr->uid_console_manager = console_mgr.uid;
280
281 request.message_id = MSG_SYSTEM_ENUM_PHYSICAL_IO;
282 request.uid = (struct mixart_uid){0,0};
283 request.data = &console_mgr.uid;
284 request.size = sizeof(console_mgr.uid);
285
286 err = snd_mixart_send_msg(mgr, &request, sizeof(phys_io), &phys_io);
287 if( (err < 0) || ( phys_io.error_code != 0 ) ) {
288 snd_printk(KERN_ERR "error MSG_SYSTEM_ENUM_PHYSICAL_IO err(%x) error_code(%x)\n", err, phys_io.error_code );
289 return -EINVAL;
290 }
291
292 /* min 2 phys io per card (analog in + analog out) */
293 if (phys_io.nb_uid < MIXART_MAX_CARDS * 2)
294 return -EINVAL;
295
296 for(k=0; k<mgr->num_cards; k++) {
297 mgr->chip[k]->uid_in_analog_physio = phys_io.uid[k];
298 mgr->chip[k]->uid_out_analog_physio = phys_io.uid[phys_io.nb_uid/2 + k];
299 }
300
301 return 0;
302 }
303
304
305 static int mixart_first_init(struct mixart_mgr *mgr)
306 {
307 u32 k;
308 int err;
309 struct mixart_msg request;
310
311 if((err = mixart_enum_connectors(mgr)) < 0) return err;
312
313 if((err = mixart_enum_physio(mgr)) < 0) return err;
314
315 /* send a synchro command to card (necessary to do this before first MSG_STREAM_START_STREAM_GRP_PACKET) */
316 /* though why not here */
317 request.message_id = MSG_SYSTEM_SEND_SYNCHRO_CMD;
318 request.uid = (struct mixart_uid){0,0};
319 request.data = NULL;
320 request.size = 0;
321 /* this command has no data. response is a 32 bit status */
322 err = snd_mixart_send_msg(mgr, &request, sizeof(k), &k);
323 if( (err < 0) || (k != 0) ) {
324 snd_printk(KERN_ERR "error MSG_SYSTEM_SEND_SYNCHRO_CMD\n");
325 return err == 0 ? -EINVAL : err;
326 }
327
328 return 0;
329 }
330
331
332 /* firmware base addresses (when hard coded) */
333 #define MIXART_MOTHERBOARD_XLX_BASE_ADDRESS 0x00600000
334
335 static int mixart_dsp_load(struct mixart_mgr* mgr, int index, const struct firmware *dsp)
336 {
337 int err, card_index;
338 u32 status_xilinx, status_elf, status_daught;
339 u32 val;
340
341 /* read motherboard xilinx status */
342 status_xilinx = readl_be( MIXART_MEM( mgr,MIXART_PSEUDOREG_MXLX_STATUS_OFFSET ));
343 /* read elf status */
344 status_elf = readl_be( MIXART_MEM( mgr,MIXART_PSEUDOREG_ELF_STATUS_OFFSET ));
345 /* read daughterboard xilinx status */
346 status_daught = readl_be( MIXART_MEM( mgr,MIXART_PSEUDOREG_DXLX_STATUS_OFFSET ));
347
348 /* motherboard xilinx status 5 will say that the board is performing a reset */
349 if (status_xilinx == 5) {
350 snd_printk(KERN_ERR "miXart is resetting !\n");
351 return -EAGAIN; /* try again later */
352 }
353
354 switch (index) {
355 case MIXART_MOTHERBOARD_XLX_INDEX:
356
357 /* xilinx already loaded ? */
358 if (status_xilinx == 4) {
359 snd_printk(KERN_DEBUG "xilinx is already loaded !\n");
360 return 0;
361 }
362 /* the status should be 0 == "idle" */
363 if (status_xilinx != 0) {
364 snd_printk(KERN_ERR "xilinx load error ! status = %d\n",
365 status_xilinx);
366 return -EIO; /* modprob -r may help ? */
367 }
368
369 /* check xilinx validity */
370 if (((u32*)(dsp->data))[0] == 0xffffffff)
371 return -EINVAL;
372 if (dsp->size % 4)
373 return -EINVAL;
374
375 /* set xilinx status to copying */
376 writel_be( 1, MIXART_MEM( mgr, MIXART_PSEUDOREG_MXLX_STATUS_OFFSET ));
377
378 /* setup xilinx base address */
379 writel_be( MIXART_MOTHERBOARD_XLX_BASE_ADDRESS, MIXART_MEM( mgr,MIXART_PSEUDOREG_MXLX_BASE_ADDR_OFFSET ));
380 /* setup code size for xilinx file */
381 writel_be( dsp->size, MIXART_MEM( mgr, MIXART_PSEUDOREG_MXLX_SIZE_OFFSET ));
382
383 /* copy xilinx code */
384 memcpy_toio( MIXART_MEM( mgr, MIXART_MOTHERBOARD_XLX_BASE_ADDRESS), dsp->data, dsp->size);
385
386 /* set xilinx status to copy finished */
387 writel_be( 2, MIXART_MEM( mgr, MIXART_PSEUDOREG_MXLX_STATUS_OFFSET ));
388
389 /* return, because no further processing needed */
390 return 0;
391
392 case MIXART_MOTHERBOARD_ELF_INDEX:
393
394 if (status_elf == 4) {
395 snd_printk(KERN_DEBUG "elf file already loaded !\n");
396 return 0;
397 }
398
399 /* the status should be 0 == "idle" */
400 if (status_elf != 0) {
401 snd_printk(KERN_ERR "elf load error ! status = %d\n",
402 status_elf);
403 return -EIO; /* modprob -r may help ? */
404 }
405
406 /* wait for xilinx status == 4 */
407 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_MXLX_STATUS_OFFSET, 1, 4, 500); /* 5sec */
408 if (err < 0) {
409 snd_printk(KERN_ERR "xilinx was not loaded or "
410 "could not be started\n");
411 return err;
412 }
413
414 /* init some data on the card */
415 writel_be( 0, MIXART_MEM( mgr, MIXART_PSEUDOREG_BOARDNUMBER ) ); /* set miXart boardnumber to 0 */
416 writel_be( 0, MIXART_MEM( mgr, MIXART_FLOWTABLE_PTR ) ); /* reset pointer to flow table on miXart */
417
418 /* set elf status to copying */
419 writel_be( 1, MIXART_MEM( mgr, MIXART_PSEUDOREG_ELF_STATUS_OFFSET ));
420
421 /* process the copying of the elf packets */
422 err = mixart_load_elf( mgr, dsp );
423 if (err < 0) return err;
424
425 /* set elf status to copy finished */
426 writel_be( 2, MIXART_MEM( mgr, MIXART_PSEUDOREG_ELF_STATUS_OFFSET ));
427
428 /* wait for elf status == 4 */
429 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_ELF_STATUS_OFFSET, 1, 4, 300); /* 3sec */
430 if (err < 0) {
431 snd_printk(KERN_ERR "elf could not be started\n");
432 return err;
433 }
434
435 /* miXart waits at this point on the pointer to the flow table */
436 writel_be( (u32)mgr->flowinfo.addr, MIXART_MEM( mgr, MIXART_FLOWTABLE_PTR ) ); /* give pointer of flow table to miXart */
437
438 return 0; /* return, another xilinx file has to be loaded before */
439
440 case MIXART_AESEBUBOARD_XLX_INDEX:
441 default:
442
443 /* elf and xilinx should be loaded */
444 if (status_elf != 4 || status_xilinx != 4) {
445 printk(KERN_ERR "xilinx or elf not "
446 "successfully loaded\n");
447 return -EIO; /* modprob -r may help ? */
448 }
449
450 /* wait for daughter detection != 0 */
451 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_DBRD_PRESENCE_OFFSET, 0, 0, 30); /* 300msec */
452 if (err < 0) {
453 snd_printk(KERN_ERR "error starting elf file\n");
454 return err;
455 }
456
457 /* the board type can now be retrieved */
458 mgr->board_type = (DAUGHTER_TYPE_MASK & readl_be( MIXART_MEM( mgr, MIXART_PSEUDOREG_DBRD_TYPE_OFFSET)));
459
460 if (mgr->board_type == MIXART_DAUGHTER_TYPE_NONE)
461 break; /* no daughter board; the file does not have to be loaded, continue after the switch */
462
463 /* only if aesebu daughter board presence (elf code must run) */
464 if (mgr->board_type != MIXART_DAUGHTER_TYPE_AES )
465 return -EINVAL;
466
467 /* daughter should be idle */
468 if (status_daught != 0) {
469 printk(KERN_ERR "daughter load error ! status = %d\n",
470 status_daught);
471 return -EIO; /* modprob -r may help ? */
472 }
473
474 /* check daughterboard xilinx validity */
475 if (((u32*)(dsp->data))[0] == 0xffffffff)
476 return -EINVAL;
477 if (dsp->size % 4)
478 return -EINVAL;
479
480 /* inform mixart about the size of the file */
481 writel_be( dsp->size, MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_SIZE_OFFSET ));
482
483 /* set daughterboard status to 1 */
484 writel_be( 1, MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET ));
485
486 /* wait for status == 2 */
487 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET, 1, 2, 30); /* 300msec */
488 if (err < 0) {
489 snd_printk(KERN_ERR "daughter board load error\n");
490 return err;
491 }
492
493 /* get the address where to write the file */
494 val = readl_be( MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_BASE_ADDR_OFFSET ));
495 if (!val)
496 return -EINVAL;
497
498 /* copy daughterboard xilinx code */
499 memcpy_toio( MIXART_MEM( mgr, val), dsp->data, dsp->size);
500
501 /* set daughterboard status to 4 */
502 writel_be( 4, MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET ));
503
504 /* continue with init */
505 break;
506 } /* end of switch file index*/
507
508 /* wait for daughter status == 3 */
509 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET, 1, 3, 300); /* 3sec */
510 if (err < 0) {
511 snd_printk(KERN_ERR
512 "daughter board could not be initialised\n");
513 return err;
514 }
515
516 /* init mailbox (communication with embedded) */
517 snd_mixart_init_mailbox(mgr);
518
519 /* first communication with embedded */
520 err = mixart_first_init(mgr);
521 if (err < 0) {
522 snd_printk(KERN_ERR "miXart could not be set up\n");
523 return err;
524 }
525
526 /* create devices and mixer in accordance with HW options*/
527 for (card_index = 0; card_index < mgr->num_cards; card_index++) {
528 struct snd_mixart *chip = mgr->chip[card_index];
529
530 if ((err = snd_mixart_create_pcm(chip)) < 0)
531 return err;
532
533 if (card_index == 0) {
534 if ((err = snd_mixart_create_mixer(chip->mgr)) < 0)
535 return err;
536 }
537
538 if ((err = snd_card_register(chip->card)) < 0)
539 return err;
540 };
541
542 snd_printdd("miXart firmware downloaded and successfully set up\n");
543
544 return 0;
545 }
546
547
548 #if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE)
549 #if !defined(CONFIG_USE_MIXARTLOADER) && !defined(CONFIG_SND_MIXART) /* built-in kernel */
550 #define SND_MIXART_FW_LOADER /* use the standard firmware loader */
551 #endif
552 #endif
553
554 #ifdef SND_MIXART_FW_LOADER
555
556 int snd_mixart_setup_firmware(struct mixart_mgr *mgr)
557 {
558 static char *fw_files[3] = {
559 "miXart8.xlx", "miXart8.elf", "miXart8AES.xlx"
560 };
561 char path[32];
562
563 const struct firmware *fw_entry;
564 int i, err;
565
566 for (i = 0; i < 3; i++) {
567 sprintf(path, "mixart/%s", fw_files[i]);
568 if (request_firmware(&fw_entry, path, &mgr->pci->dev)) {
569 snd_printk(KERN_ERR "miXart: can't load firmware %s\n", path);
570 return -ENOENT;
571 }
572 /* fake hwdep dsp record */
573 err = mixart_dsp_load(mgr, i, fw_entry);
574 release_firmware(fw_entry);
575 if (err < 0)
576 return err;
577 mgr->dsp_loaded |= 1 << i;
578 }
579 return 0;
580 }
581
582 MODULE_FIRMWARE("mixart/miXart8.xlx");
583 MODULE_FIRMWARE("mixart/miXart8.elf");
584 MODULE_FIRMWARE("mixart/miXart8AES.xlx");
585
586 #else /* old style firmware loading */
587
588 /* miXart hwdep interface id string */
589 #define SND_MIXART_HWDEP_ID "miXart Loader"
590
591 static int mixart_hwdep_dsp_status(struct snd_hwdep *hw,
592 struct snd_hwdep_dsp_status *info)
593 {
594 struct mixart_mgr *mgr = hw->private_data;
595
596 strcpy(info->id, "miXart");
597 info->num_dsps = MIXART_HARDW_FILES_MAX_INDEX;
598
599 if (mgr->dsp_loaded & (1 << MIXART_MOTHERBOARD_ELF_INDEX))
600 info->chip_ready = 1;
601
602 info->version = MIXART_DRIVER_VERSION;
603 return 0;
604 }
605
606 static int mixart_hwdep_dsp_load(struct snd_hwdep *hw,
607 struct snd_hwdep_dsp_image *dsp)
608 {
609 struct mixart_mgr* mgr = hw->private_data;
610 struct firmware fw;
611 int err;
612
613 fw.size = dsp->length;
614 fw.data = vmalloc(dsp->length);
615 if (! fw.data) {
616 snd_printk(KERN_ERR "miXart: cannot allocate image size %d\n",
617 (int)dsp->length);
618 return -ENOMEM;
619 }
620 if (copy_from_user((void *) fw.data, dsp->image, dsp->length)) {
621 vfree(fw.data);
622 return -EFAULT;
623 }
624 err = mixart_dsp_load(mgr, dsp->index, &fw);
625 vfree(fw.data);
626 if (err < 0)
627 return err;
628 mgr->dsp_loaded |= 1 << dsp->index;
629 return err;
630 }
631
632 int snd_mixart_setup_firmware(struct mixart_mgr *mgr)
633 {
634 int err;
635 struct snd_hwdep *hw;
636
637 /* only create hwdep interface for first cardX (see "index" module parameter)*/
638 if ((err = snd_hwdep_new(mgr->chip[0]->card, SND_MIXART_HWDEP_ID, 0, &hw)) < 0)
639 return err;
640
641 hw->iface = SNDRV_HWDEP_IFACE_MIXART;
642 hw->private_data = mgr;
643 hw->ops.dsp_status = mixart_hwdep_dsp_status;
644 hw->ops.dsp_load = mixart_hwdep_dsp_load;
645 hw->exclusive = 1;
646 sprintf(hw->name, SND_MIXART_HWDEP_ID);
647 mgr->dsp_loaded = 0;
648
649 return snd_card_register(mgr->chip[0]->card);
650 }
651
652 #endif /* SND_MIXART_FW_LOADER */
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree