1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Driver for Digigram miXart soundcards
4 *
5 * DSP firmware management
6 *
7 * Copyright (c) 2003 by Digigram <alsa@digigram.com>
8 */
9
10 #include <linux/interrupt.h>
11 #include <linux/pci.h>
12 #include <linux/firmware.h>
13 #include <linux/vmalloc.h>
14 #include <linux/slab.h>
15 #include <linux/module.h>
16 #include <linux/io.h>
17 #include <sound/core.h>
18 #include "mixart.h"
19 #include "mixart_mixer.h"
20 #include "mixart_core.h"
21 #include "mixart_hwdep.h"
22
23
24 /**
25 * mixart_wait_nice_for_register_value - wait for a value on a peudo register,
26 * exit with a timeout
27 *
28 * @mgr: pointer to miXart manager structure
29 * @offset: unsigned pseudo_register base + offset of value
30 * @is_egal: wait for the equal value
31 * @value: value
32 * @timeout: timeout in centisenconds
33 */
mixart_wait_nice_for_register_value(struct mixart_mgr * mgr,u32 offset,int is_egal,u32 value,unsigned long timeout)34 static int mixart_wait_nice_for_register_value(struct mixart_mgr *mgr,
35 u32 offset, int is_egal,
36 u32 value, unsigned long timeout)
37 {
38 unsigned long end_time = jiffies + (timeout * HZ / 100);
39 u32 read;
40
41 do { /* we may take too long time in this loop.
42 * so give controls back to kernel if needed.
43 */
44 cond_resched();
45
46 read = readl_be( MIXART_MEM( mgr, offset ));
47 if(is_egal) {
48 if(read == value) return 0;
49 }
50 else { /* wait for different value */
51 if(read != value) return 0;
52 }
53 } while ( time_after_eq(end_time, jiffies) );
54
55 return -EBUSY;
56 }
57
58
59 /*
60 structures needed to upload elf code packets
61 */
62 struct snd_mixart_elf32_ehdr {
63 u8 e_ident[16];
64 __be16 e_type;
65 __be16 e_machine;
66 __be32 e_version;
67 __be32 e_entry;
68 __be32 e_phoff;
69 __be32 e_shoff;
70 __be32 e_flags;
71 __be16 e_ehsize;
72 __be16 e_phentsize;
73 __be16 e_phnum;
74 __be16 e_shentsize;
75 __be16 e_shnum;
76 __be16 e_shstrndx;
77 };
78
79 struct snd_mixart_elf32_phdr {
80 __be32 p_type;
81 __be32 p_offset;
82 __be32 p_vaddr;
83 __be32 p_paddr;
84 __be32 p_filesz;
85 __be32 p_memsz;
86 __be32 p_flags;
87 __be32 p_align;
88 };
89
mixart_load_elf(struct mixart_mgr * mgr,const struct firmware * dsp)90 static int mixart_load_elf(struct mixart_mgr *mgr, const struct firmware *dsp )
91 {
92 char elf32_magic_number[4] = {0x7f,'E','L','F'};
93 struct snd_mixart_elf32_ehdr *elf_header;
94 int i;
95
96 elf_header = (struct snd_mixart_elf32_ehdr *)dsp->data;
97 for( i=0; i<4; i++ )
98 if ( elf32_magic_number[i] != elf_header->e_ident[i] )
99 return -EINVAL;
100
101 if( elf_header->e_phoff != 0 ) {
102 struct snd_mixart_elf32_phdr elf_programheader;
103
104 for( i=0; i < be16_to_cpu(elf_header->e_phnum); i++ ) {
105 u32 pos = be32_to_cpu(elf_header->e_phoff) + (u32)(i * be16_to_cpu(elf_header->e_phentsize));
106
107 memcpy( &elf_programheader, dsp->data + pos, sizeof(elf_programheader) );
108
109 if(elf_programheader.p_type != 0) {
110 if( elf_programheader.p_filesz != 0 ) {
111 memcpy_toio( MIXART_MEM( mgr, be32_to_cpu(elf_programheader.p_vaddr)),
112 dsp->data + be32_to_cpu( elf_programheader.p_offset ),
113 be32_to_cpu( elf_programheader.p_filesz ));
114 }
115 }
116 }
117 }
118 return 0;
119 }
120
121 /*
122 * get basic information and init miXart
123 */
124
125 /* audio IDs for request to the board */
126 #define MIXART_FIRST_ANA_AUDIO_ID 0
127 #define MIXART_FIRST_DIG_AUDIO_ID 8
128
mixart_enum_connectors(struct mixart_mgr * mgr)129 static int mixart_enum_connectors(struct mixart_mgr *mgr)
130 {
131 u32 k;
132 int err;
133 struct mixart_msg request;
134 struct mixart_enum_connector_resp *connector;
135 struct mixart_audio_info_req *audio_info_req;
136 struct mixart_audio_info_resp *audio_info;
137
138 connector = kmalloc(sizeof(*connector), GFP_KERNEL);
139 audio_info_req = kmalloc(sizeof(*audio_info_req), GFP_KERNEL);
140 audio_info = kmalloc(sizeof(*audio_info), GFP_KERNEL);
141 if (! connector || ! audio_info_req || ! audio_info) {
142 err = -ENOMEM;
143 goto __error;
144 }
145
146 audio_info_req->line_max_level = MIXART_FLOAT_P_22_0_TO_HEX;
147 audio_info_req->micro_max_level = MIXART_FLOAT_M_20_0_TO_HEX;
148 audio_info_req->cd_max_level = MIXART_FLOAT____0_0_TO_HEX;
149
150 request.message_id = MSG_SYSTEM_ENUM_PLAY_CONNECTOR;
151 request.uid = (struct mixart_uid){0,0}; /* board num = 0 */
152 request.data = NULL;
153 request.size = 0;
154
155 err = snd_mixart_send_msg(mgr, &request, sizeof(*connector), connector);
156 if((err < 0) || (connector->error_code) || (connector->uid_count > MIXART_MAX_PHYS_CONNECTORS)) {
157 dev_err(&mgr->pci->dev,
158 "error MSG_SYSTEM_ENUM_PLAY_CONNECTOR\n");
159 err = -EINVAL;
160 goto __error;
161 }
162
163 for(k=0; k < connector->uid_count; k++) {
164 struct mixart_pipe *pipe;
165
166 if(k < MIXART_FIRST_DIG_AUDIO_ID) {
167 pipe = &mgr->chip[k/2]->pipe_out_ana;
168 } else {
169 pipe = &mgr->chip[(k-MIXART_FIRST_DIG_AUDIO_ID)/2]->pipe_out_dig;
170 }
171 if(k & 1) {
172 pipe->uid_right_connector = connector->uid[k]; /* odd */
173 } else {
174 pipe->uid_left_connector = connector->uid[k]; /* even */
175 }
176
177 /* dev_dbg(&mgr->pci->dev, "playback connector[%d].object_id = %x\n", k, connector->uid[k].object_id); */
178
179 /* TODO: really need send_msg MSG_CONNECTOR_GET_AUDIO_INFO for each connector ? perhaps for analog level caps ? */
180 request.message_id = MSG_CONNECTOR_GET_AUDIO_INFO;
181 request.uid = connector->uid[k];
182 request.data = audio_info_req;
183 request.size = sizeof(*audio_info_req);
184
185 err = snd_mixart_send_msg(mgr, &request, sizeof(*audio_info), audio_info);
186 if( err < 0 ) {
187 dev_err(&mgr->pci->dev,
188 "error MSG_CONNECTOR_GET_AUDIO_INFO\n");
189 goto __error;
190 }
191 /*dev_dbg(&mgr->pci->dev, "play analog_info.analog_level_present = %x\n", audio_info->info.analog_info.analog_level_present);*/
192 }
193
194 request.message_id = MSG_SYSTEM_ENUM_RECORD_CONNECTOR;
195 request.uid = (struct mixart_uid){0,0}; /* board num = 0 */
196 request.data = NULL;
197 request.size = 0;
198
199 err = snd_mixart_send_msg(mgr, &request, sizeof(*connector), connector);
200 if((err < 0) || (connector->error_code) || (connector->uid_count > MIXART_MAX_PHYS_CONNECTORS)) {
201 dev_err(&mgr->pci->dev,
202 "error MSG_SYSTEM_ENUM_RECORD_CONNECTOR\n");
203 err = -EINVAL;
204 goto __error;
205 }
206
207 for(k=0; k < connector->uid_count; k++) {
208 struct mixart_pipe *pipe;
209
210 if(k < MIXART_FIRST_DIG_AUDIO_ID) {
211 pipe = &mgr->chip[k/2]->pipe_in_ana;
212 } else {
213 pipe = &mgr->chip[(k-MIXART_FIRST_DIG_AUDIO_ID)/2]->pipe_in_dig;
214 }
215 if(k & 1) {
216 pipe->uid_right_connector = connector->uid[k]; /* odd */
217 } else {
218 pipe->uid_left_connector = connector->uid[k]; /* even */
219 }
220
221 /* dev_dbg(&mgr->pci->dev, "capture connector[%d].object_id = %x\n", k, connector->uid[k].object_id); */
222
223 /* TODO: really need send_msg MSG_CONNECTOR_GET_AUDIO_INFO for each connector ? perhaps for analog level caps ? */
224 request.message_id = MSG_CONNECTOR_GET_AUDIO_INFO;
225 request.uid = connector->uid[k];
226 request.data = audio_info_req;
227 request.size = sizeof(*audio_info_req);
228
229 err = snd_mixart_send_msg(mgr, &request, sizeof(*audio_info), audio_info);
230 if( err < 0 ) {
231 dev_err(&mgr->pci->dev,
232 "error MSG_CONNECTOR_GET_AUDIO_INFO\n");
233 goto __error;
234 }
235 /*dev_dbg(&mgr->pci->dev, "rec analog_info.analog_level_present = %x\n", audio_info->info.analog_info.analog_level_present);*/
236 }
237 err = 0;
238
239 __error:
240 kfree(connector);
241 kfree(audio_info_req);
242 kfree(audio_info);
243
244 return err;
245 }
246
mixart_enum_physio(struct mixart_mgr * mgr)247 static int mixart_enum_physio(struct mixart_mgr *mgr)
248 {
249 u32 k;
250 int err;
251 struct mixart_msg request;
252 struct mixart_uid get_console_mgr;
253 struct mixart_return_uid console_mgr;
254 struct mixart_uid_enumeration phys_io;
255
256 /* get the uid for the console manager */
257 get_console_mgr.object_id = 0;
258 get_console_mgr.desc = MSG_CONSOLE_MANAGER | 0; /* cardindex = 0 */
259
260 request.message_id = MSG_CONSOLE_GET_CLOCK_UID;
261 request.uid = get_console_mgr;
262 request.data = &get_console_mgr;
263 request.size = sizeof(get_console_mgr);
264
265 err = snd_mixart_send_msg(mgr, &request, sizeof(console_mgr), &console_mgr);
266
267 if( (err < 0) || (console_mgr.error_code != 0) ) {
268 dev_dbg(&mgr->pci->dev,
269 "error MSG_CONSOLE_GET_CLOCK_UID : err=%x\n",
270 console_mgr.error_code);
271 return -EINVAL;
272 }
273
274 /* used later for clock issues ! */
275 mgr->uid_console_manager = console_mgr.uid;
276
277 request.message_id = MSG_SYSTEM_ENUM_PHYSICAL_IO;
278 request.uid = (struct mixart_uid){0,0};
279 request.data = &console_mgr.uid;
280 request.size = sizeof(console_mgr.uid);
281
282 err = snd_mixart_send_msg(mgr, &request, sizeof(phys_io), &phys_io);
283 if( (err < 0) || ( phys_io.error_code != 0 ) ) {
284 dev_err(&mgr->pci->dev,
285 "error MSG_SYSTEM_ENUM_PHYSICAL_IO err(%x) error_code(%x)\n",
286 err, phys_io.error_code);
287 return -EINVAL;
288 }
289
290 /* min 2 phys io per card (analog in + analog out) */
291 if (phys_io.nb_uid < MIXART_MAX_CARDS * 2)
292 return -EINVAL;
293
294 for(k=0; k<mgr->num_cards; k++) {
295 mgr->chip[k]->uid_in_analog_physio = phys_io.uid[k];
296 mgr->chip[k]->uid_out_analog_physio = phys_io.uid[phys_io.nb_uid/2 + k];
297 }
298
299 return 0;
300 }
301
302
mixart_first_init(struct mixart_mgr * mgr)303 static int mixart_first_init(struct mixart_mgr *mgr)
304 {
305 u32 k;
306 int err;
307 struct mixart_msg request;
308
309 err = mixart_enum_connectors(mgr);
310 if (err < 0)
311 return err;
312
313 err = mixart_enum_physio(mgr);
314 if (err < 0)
315 return err;
316
317 /* send a synchro command to card (necessary to do this before first MSG_STREAM_START_STREAM_GRP_PACKET) */
318 /* though why not here */
319 request.message_id = MSG_SYSTEM_SEND_SYNCHRO_CMD;
320 request.uid = (struct mixart_uid){0,0};
321 request.data = NULL;
322 request.size = 0;
323 /* this command has no data. response is a 32 bit status */
324 err = snd_mixart_send_msg(mgr, &request, sizeof(k), &k);
325 if( (err < 0) || (k != 0) ) {
326 dev_err(&mgr->pci->dev, "error MSG_SYSTEM_SEND_SYNCHRO_CMD\n");
327 return err == 0 ? -EINVAL : err;
328 }
329
330 return 0;
331 }
332
333
334 /* firmware base addresses (when hard coded) */
335 #define MIXART_MOTHERBOARD_XLX_BASE_ADDRESS 0x00600000
336
mixart_dsp_load(struct mixart_mgr * mgr,int index,const struct firmware * dsp)337 static int mixart_dsp_load(struct mixart_mgr* mgr, int index, const struct firmware *dsp)
338 {
339 int err, card_index;
340 u32 status_xilinx, status_elf, status_daught;
341 u32 val;
342
343 /* read motherboard xilinx status */
344 status_xilinx = readl_be( MIXART_MEM( mgr,MIXART_PSEUDOREG_MXLX_STATUS_OFFSET ));
345 /* read elf status */
346 status_elf = readl_be( MIXART_MEM( mgr,MIXART_PSEUDOREG_ELF_STATUS_OFFSET ));
347 /* read daughterboard xilinx status */
348 status_daught = readl_be( MIXART_MEM( mgr,MIXART_PSEUDOREG_DXLX_STATUS_OFFSET ));
349
350 /* motherboard xilinx status 5 will say that the board is performing a reset */
351 if (status_xilinx == 5) {
352 dev_err(&mgr->pci->dev, "miXart is resetting !\n");
353 return -EAGAIN; /* try again later */
354 }
355
356 switch (index) {
357 case MIXART_MOTHERBOARD_XLX_INDEX:
358
359 /* xilinx already loaded ? */
360 if (status_xilinx == 4) {
361 dev_dbg(&mgr->pci->dev, "xilinx is already loaded !\n");
362 return 0;
363 }
364 /* the status should be 0 == "idle" */
365 if (status_xilinx != 0) {
366 dev_err(&mgr->pci->dev,
367 "xilinx load error ! status = %d\n",
368 status_xilinx);
369 return -EIO; /* modprob -r may help ? */
370 }
371
372 /* check xilinx validity */
373 if (((u32*)(dsp->data))[0] == 0xffffffff)
374 return -EINVAL;
375 if (dsp->size % 4)
376 return -EINVAL;
377
378 /* set xilinx status to copying */
379 writel_be( 1, MIXART_MEM( mgr, MIXART_PSEUDOREG_MXLX_STATUS_OFFSET ));
380
381 /* setup xilinx base address */
382 writel_be( MIXART_MOTHERBOARD_XLX_BASE_ADDRESS, MIXART_MEM( mgr,MIXART_PSEUDOREG_MXLX_BASE_ADDR_OFFSET ));
383 /* setup code size for xilinx file */
384 writel_be( dsp->size, MIXART_MEM( mgr, MIXART_PSEUDOREG_MXLX_SIZE_OFFSET ));
385
386 /* copy xilinx code */
387 memcpy_toio( MIXART_MEM( mgr, MIXART_MOTHERBOARD_XLX_BASE_ADDRESS), dsp->data, dsp->size);
388
389 /* set xilinx status to copy finished */
390 writel_be( 2, MIXART_MEM( mgr, MIXART_PSEUDOREG_MXLX_STATUS_OFFSET ));
391
392 /* return, because no further processing needed */
393 return 0;
394
395 case MIXART_MOTHERBOARD_ELF_INDEX:
396
397 if (status_elf == 4) {
398 dev_dbg(&mgr->pci->dev, "elf file already loaded !\n");
399 return 0;
400 }
401
402 /* the status should be 0 == "idle" */
403 if (status_elf != 0) {
404 dev_err(&mgr->pci->dev,
405 "elf load error ! status = %d\n",
406 status_elf);
407 return -EIO; /* modprob -r may help ? */
408 }
409
410 /* wait for xilinx status == 4 */
411 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_MXLX_STATUS_OFFSET, 1, 4, 500); /* 5sec */
412 if (err < 0) {
413 dev_err(&mgr->pci->dev, "xilinx was not loaded or "
414 "could not be started\n");
415 return err;
416 }
417
418 /* init some data on the card */
419 writel_be( 0, MIXART_MEM( mgr, MIXART_PSEUDOREG_BOARDNUMBER ) ); /* set miXart boardnumber to 0 */
420 writel_be( 0, MIXART_MEM( mgr, MIXART_FLOWTABLE_PTR ) ); /* reset pointer to flow table on miXart */
421
422 /* set elf status to copying */
423 writel_be( 1, MIXART_MEM( mgr, MIXART_PSEUDOREG_ELF_STATUS_OFFSET ));
424
425 /* process the copying of the elf packets */
426 err = mixart_load_elf( mgr, dsp );
427 if (err < 0) return err;
428
429 /* set elf status to copy finished */
430 writel_be( 2, MIXART_MEM( mgr, MIXART_PSEUDOREG_ELF_STATUS_OFFSET ));
431
432 /* wait for elf status == 4 */
433 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_ELF_STATUS_OFFSET, 1, 4, 300); /* 3sec */
434 if (err < 0) {
435 dev_err(&mgr->pci->dev, "elf could not be started\n");
436 return err;
437 }
438
439 /* miXart waits at this point on the pointer to the flow table */
440 writel_be( (u32)mgr->flowinfo.addr, MIXART_MEM( mgr, MIXART_FLOWTABLE_PTR ) ); /* give pointer of flow table to miXart */
441
442 return 0; /* return, another xilinx file has to be loaded before */
443
444 case MIXART_AESEBUBOARD_XLX_INDEX:
445 default:
446
447 /* elf and xilinx should be loaded */
448 if (status_elf != 4 || status_xilinx != 4) {
449 dev_err(&mgr->pci->dev, "xilinx or elf not "
450 "successfully loaded\n");
451 return -EIO; /* modprob -r may help ? */
452 }
453
454 /* wait for daughter detection != 0 */
455 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_DBRD_PRESENCE_OFFSET, 0, 0, 30); /* 300msec */
456 if (err < 0) {
457 dev_err(&mgr->pci->dev, "error starting elf file\n");
458 return err;
459 }
460
461 /* the board type can now be retrieved */
462 mgr->board_type = (DAUGHTER_TYPE_MASK & readl_be( MIXART_MEM( mgr, MIXART_PSEUDOREG_DBRD_TYPE_OFFSET)));
463
464 if (mgr->board_type == MIXART_DAUGHTER_TYPE_NONE)
465 break; /* no daughter board; the file does not have to be loaded, continue after the switch */
466
467 /* only if aesebu daughter board presence (elf code must run) */
468 if (mgr->board_type != MIXART_DAUGHTER_TYPE_AES )
469 return -EINVAL;
470
471 /* daughter should be idle */
472 if (status_daught != 0) {
473 dev_err(&mgr->pci->dev,
474 "daughter load error ! status = %d\n",
475 status_daught);
476 return -EIO; /* modprob -r may help ? */
477 }
478
479 /* check daughterboard xilinx validity */
480 if (((u32*)(dsp->data))[0] == 0xffffffff)
481 return -EINVAL;
482 if (dsp->size % 4)
483 return -EINVAL;
484
485 /* inform mixart about the size of the file */
486 writel_be( dsp->size, MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_SIZE_OFFSET ));
487
488 /* set daughterboard status to 1 */
489 writel_be( 1, MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET ));
490
491 /* wait for status == 2 */
492 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET, 1, 2, 30); /* 300msec */
493 if (err < 0) {
494 dev_err(&mgr->pci->dev, "daughter board load error\n");
495 return err;
496 }
497
498 /* get the address where to write the file */
499 val = readl_be( MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_BASE_ADDR_OFFSET ));
500 if (!val)
501 return -EINVAL;
502
503 /* copy daughterboard xilinx code */
504 memcpy_toio( MIXART_MEM( mgr, val), dsp->data, dsp->size);
505
506 /* set daughterboard status to 4 */
507 writel_be( 4, MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET ));
508
509 /* continue with init */
510 break;
511 } /* end of switch file index*/
512
513 /* wait for daughter status == 3 */
514 err = mixart_wait_nice_for_register_value( mgr, MIXART_PSEUDOREG_DXLX_STATUS_OFFSET, 1, 3, 300); /* 3sec */
515 if (err < 0) {
516 dev_err(&mgr->pci->dev,
517 "daughter board could not be initialised\n");
518 return err;
519 }
520
521 /* init mailbox (communication with embedded) */
522 snd_mixart_init_mailbox(mgr);
523
524 /* first communication with embedded */
525 err = mixart_first_init(mgr);
526 if (err < 0) {
527 dev_err(&mgr->pci->dev, "miXart could not be set up\n");
528 return err;
529 }
530
531 /* create devices and mixer in accordance with HW options*/
532 for (card_index = 0; card_index < mgr->num_cards; card_index++) {
533 struct snd_mixart *chip = mgr->chip[card_index];
534
535 err = snd_mixart_create_pcm(chip);
536 if (err < 0)
537 return err;
538
539 if (card_index == 0) {
540 err = snd_mixart_create_mixer(chip->mgr);
541 if (err < 0)
542 return err;
543 }
544
545 err = snd_card_register(chip->card);
546 if (err < 0)
547 return err;
548 }
549
550 dev_dbg(&mgr->pci->dev,
551 "miXart firmware downloaded and successfully set up\n");
552
553 return 0;
554 }
555
556
snd_mixart_setup_firmware(struct mixart_mgr * mgr)557 int snd_mixart_setup_firmware(struct mixart_mgr *mgr)
558 {
559 static const char * const 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 dev_err(&mgr->pci->dev,
571 "miXart: can't load firmware %s\n", path);
572 return -ENOENT;
573 }
574 /* fake hwdep dsp record */
575 err = mixart_dsp_load(mgr, i, fw_entry);
576 release_firmware(fw_entry);
577 if (err < 0)
578 return err;
579 mgr->dsp_loaded |= 1 << i;
580 }
581 return 0;
582 }
583
584 MODULE_FIRMWARE("mixart/miXart8.xlx");
585 MODULE_FIRMWARE("mixart/miXart8.elf");
586 MODULE_FIRMWARE("mixart/miXart8AES.xlx");
587
