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[POWERPC] Remove old interface find_devices
[linux-2.6/verdex.git] / sound / oss / dmasound / dmasound_awacs.c
blob730fa1d001a5c7b366ef6814475f833319f93a9d
1 /*
2 * linux/sound/oss/dmasound/dmasound_awacs.c
3 *
4 * PowerMac `AWACS' and `Burgundy' DMA Sound Driver
5 * with some limited support for DACA & Tumbler
6 *
7 * See linux/sound/oss/dmasound/dmasound_core.c for copyright and
8 * history prior to 2001/01/26.
9 *
10 * 26/01/2001 ed 0.1 Iain Sandoe
11 * - added version info.
12 * - moved dbdma command buffer allocation to PMacXXXSqSetup()
13 * - fixed up beep dbdma cmd buffers
14 *
15 * 08/02/2001 [0.2]
16 * - make SNDCTL_DSP_GETFMTS return the correct info for the h/w
17 * - move soft format translations to a separate file
18 * - [0.3] make SNDCTL_DSP_GETCAPS return correct info.
19 * - [0.4] more informative machine name strings.
20 * - [0.5]
21 * - record changes.
22 * - made the default_hard/soft entries.
23 * 04/04/2001 [0.6]
24 * - minor correction to bit assignments in awacs_defs.h
25 * - incorporate mixer changes from 2.2.x back-port.
26 * - take out passthru as a rec input (it isn't).
27 * - make Input Gain slider work the 'right way up'.
28 * - try to make the mixer sliders more logical - so now the
29 * input selectors are just two-state (>50% == ON) and the
30 * Input Gain slider handles the rest of the gain issues.
31 * - try to pick slider representations that most closely match
32 * the actual use - e.g. IGain for input gain...
33 * - first stab at over/under-run detection.
34 * - minor cosmetic changes to IRQ identification.
35 * - fix bug where rates > max would be reported as supported.
36 * - first stab at over/under-run detection.
37 * - make use of i2c for mixer settings conditional on perch
38 * rather than cuda (some machines without perch have cuda).
39 * - fix bug where TX stops when dbdma status comes up "DEAD"
40 * so far only reported on PowerComputing clones ... but.
41 * - put in AWACS/Screamer register write timeouts.
42 * - part way to partitioning the init() stuff
43 * - first pass at 'tumbler' stuff (not support - just an attempt
44 * to allow the driver to load on new G4s).
45 * 01/02/2002 [0.7] - BenH
46 * - all sort of minor bits went in since the latest update, I
47 * bumped the version number for that reason
48 *
49 * 07/26/2002 [0.8] - BenH
50 * - More minor bits since last changelog (I should be more careful
51 * with those)
52 * - Support for snapper & better tumbler integration by Toby Sargeant
53 * - Headphone detect for scremer by Julien Blache
54 * - More tumbler fixed by Andreas Schwab
55 * 11/29/2003 [0.8.1] - Renzo Davoli (King Enzo)
56 * - Support for Snapper line in
57 * - snapper input resampling (for rates < 44100)
58 * - software line gain control
59 */
60
61 /* GENERAL FIXME/TODO: check that the assumptions about what is written to
62 mac-io is valid for DACA & Tumbler.
63
64 This driver is in bad need of a rewrite. The dbdma code has to be split,
65 some proper device-tree parsing code has to be written, etc...
66 */
67
68 #include <linux/types.h>
69 #include <linux/module.h>
70 #include <linux/slab.h>
71 #include <linux/init.h>
72 #include <linux/delay.h>
73 #include <linux/soundcard.h>
74 #include <linux/adb.h>
75 #include <linux/nvram.h>
76 #include <linux/tty.h>
77 #include <linux/vt_kern.h>
78 #include <linux/spinlock.h>
79 #include <linux/kmod.h>
80 #include <linux/interrupt.h>
81 #include <linux/input.h>
82 #include <linux/mutex.h>
83 #ifdef CONFIG_ADB_CUDA
84 #include <linux/cuda.h>
85 #endif
86 #ifdef CONFIG_ADB_PMU
87 #include <linux/pmu.h>
88 #endif
89
90 #include <asm/uaccess.h>
91 #include <asm/prom.h>
92 #include <asm/machdep.h>
93 #include <asm/io.h>
94 #include <asm/dbdma.h>
95 #include <asm/pmac_feature.h>
96 #include <asm/irq.h>
97 #include <asm/nvram.h>
98
99 #include "awacs_defs.h"
100 #include "dmasound.h"
101 #include "tas3001c.h"
102 #include "tas3004.h"
103 #include "tas_common.h"
104
105 #define DMASOUND_AWACS_REVISION 0
106 #define DMASOUND_AWACS_EDITION 7
107
108 #define AWACS_SNAPPER 110 /* fake revision # for snapper */
109 #define AWACS_BURGUNDY 100 /* fake revision # for burgundy */
110 #define AWACS_TUMBLER 90 /* fake revision # for tumbler */
111 #define AWACS_DACA 80 /* fake revision # for daca (ibook) */
112 #define AWACS_AWACS 2 /* holding revision for AWACS */
113 #define AWACS_SCREAMER 3 /* holding revision for Screamer */
114 /*
115 * Interrupt numbers and addresses, & info obtained from the device tree.
116 */
117 static int awacs_irq, awacs_tx_irq, awacs_rx_irq;
118 static volatile struct awacs_regs __iomem *awacs;
119 static volatile u32 __iomem *i2s;
120 static volatile struct dbdma_regs __iomem *awacs_txdma, *awacs_rxdma;
121 static int awacs_rate_index;
122 static int awacs_subframe;
123 static struct device_node* awacs_node;
124 static struct device_node* i2s_node;
125 static struct resource awacs_rsrc[3];
126
127 static char awacs_name[64];
128 static int awacs_revision;
129 static int awacs_sleeping;
130 static DEFINE_MUTEX(dmasound_mutex);
131
132 static int sound_device_id; /* exists after iMac revA */
133 static int hw_can_byteswap = 1 ; /* most pmac sound h/w can */
134
135 /* model info */
136 /* To be replaced with better interaction with pmac_feature.c */
137 static int is_pbook_3X00;
138 static int is_pbook_g3;
139
140 /* expansion info */
141 static int has_perch;
142 static int has_ziva;
143
144 /* for earlier powerbooks which need fiddling with mac-io to enable
145 * cd etc.
146 */
147 static unsigned char __iomem *latch_base;
148 static unsigned char __iomem *macio_base;
149
150 /*
151 * Space for the DBDMA command blocks.
152 */
153 static void *awacs_tx_cmd_space;
154 static volatile struct dbdma_cmd *awacs_tx_cmds;
155 static int number_of_tx_cmd_buffers;
156
157 static void *awacs_rx_cmd_space;
158 static volatile struct dbdma_cmd *awacs_rx_cmds;
159 static int number_of_rx_cmd_buffers;
160
161 /*
162 * Cached values of AWACS registers (we can't read them).
163 * Except on the burgundy (and screamer). XXX
164 */
165
166 int awacs_reg[8];
167 int awacs_reg1_save;
168
169 /* tracking values for the mixer contents
170 */
171
172 static int spk_vol;
173 static int line_vol;
174 static int passthru_vol;
175
176 static int ip_gain; /* mic preamp settings */
177 static int rec_lev = 0x4545 ; /* default CD gain 69 % */
178 static int mic_lev;
179 static int cd_lev = 0x6363 ; /* 99 % */
180 static int line_lev;
181
182 static int hdp_connected;
183
184 /*
185 * Stuff for outputting a beep. The values range from -327 to +327
186 * so we can multiply by an amplitude in the range 0..100 to get a
187 * signed short value to put in the output buffer.
188 */
189 static short beep_wform[256] = {
190 0, 40, 79, 117, 153, 187, 218, 245,
191 269, 288, 304, 316, 323, 327, 327, 324,
192 318, 310, 299, 288, 275, 262, 249, 236,
193 224, 213, 204, 196, 190, 186, 183, 182,
194 182, 183, 186, 189, 192, 196, 200, 203,
195 206, 208, 209, 209, 209, 207, 204, 201,
196 197, 193, 188, 183, 179, 174, 170, 166,
197 163, 161, 160, 159, 159, 160, 161, 162,
198 164, 166, 168, 169, 171, 171, 171, 170,
199 169, 167, 163, 159, 155, 150, 144, 139,
200 133, 128, 122, 117, 113, 110, 107, 105,
201 103, 103, 103, 103, 104, 104, 105, 105,
202 105, 103, 101, 97, 92, 86, 78, 68,
203 58, 45, 32, 18, 3, -11, -26, -41,
204 -55, -68, -79, -88, -95, -100, -102, -102,
205 -99, -93, -85, -75, -62, -48, -33, -16,
206 0, 16, 33, 48, 62, 75, 85, 93,
207 99, 102, 102, 100, 95, 88, 79, 68,
208 55, 41, 26, 11, -3, -18, -32, -45,
209 -58, -68, -78, -86, -92, -97, -101, -103,
210 -105, -105, -105, -104, -104, -103, -103, -103,
211 -103, -105, -107, -110, -113, -117, -122, -128,
212 -133, -139, -144, -150, -155, -159, -163, -167,
213 -169, -170, -171, -171, -171, -169, -168, -166,
214 -164, -162, -161, -160, -159, -159, -160, -161,
215 -163, -166, -170, -174, -179, -183, -188, -193,
216 -197, -201, -204, -207, -209, -209, -209, -208,
217 -206, -203, -200, -196, -192, -189, -186, -183,
218 -182, -182, -183, -186, -190, -196, -204, -213,
219 -224, -236, -249, -262, -275, -288, -299, -310,
220 -318, -324, -327, -327, -323, -316, -304, -288,
221 -269, -245, -218, -187, -153, -117, -79, -40,
222 };
223
224 /* beep support */
225 #define BEEP_SRATE 22050 /* 22050 Hz sample rate */
226 #define BEEP_BUFLEN 512
227 #define BEEP_VOLUME 15 /* 0 - 100 */
228
229 static int beep_vol = BEEP_VOLUME;
230 static int beep_playing;
231 static int awacs_beep_state;
232 static short *beep_buf;
233 static void *beep_dbdma_cmd_space;
234 static volatile struct dbdma_cmd *beep_dbdma_cmd;
235
236 /* Burgundy functions */
237 static void awacs_burgundy_wcw(unsigned addr,unsigned newval);
238 static unsigned awacs_burgundy_rcw(unsigned addr);
239 static void awacs_burgundy_write_volume(unsigned address, int volume);
240 static int awacs_burgundy_read_volume(unsigned address);
241 static void awacs_burgundy_write_mvolume(unsigned address, int volume);
242 static int awacs_burgundy_read_mvolume(unsigned address);
243
244 /* we will allocate a single 'emergency' dbdma cmd block to use if the
245 tx status comes up "DEAD". This happens on some PowerComputing Pmac
246 clones, either owing to a bug in dbdma or some interaction between
247 IDE and sound. However, this measure would deal with DEAD status if
248 if appeared elsewhere.
249
250 for the sake of memory efficiency we'll allocate this cmd as part of
251 the beep cmd stuff.
252 */
253
254 static volatile struct dbdma_cmd *emergency_dbdma_cmd;
255
256 #ifdef CONFIG_PM
257 /*
258 * Stuff for restoring after a sleep.
259 */
260 static void awacs_sleep_notify(struct pmu_sleep_notifier *self, int when);
261 struct pmu_sleep_notifier awacs_sleep_notifier = {
262 awacs_sleep_notify, SLEEP_LEVEL_SOUND,
263 };
264 #endif /* CONFIG_PM */
265
266 /* for (soft) sample rate translations */
267 int expand_bal; /* Balance factor for expanding (not volume!) */
268 int expand_read_bal; /* Balance factor for expanding reads (not volume!) */
269
270 /*** Low level stuff *********************************************************/
271
272 static void *PMacAlloc(unsigned int size, gfp_t flags);
273 static void PMacFree(void *ptr, unsigned int size);
274 static int PMacIrqInit(void);
275 #ifdef MODULE
276 static void PMacIrqCleanup(void);
277 #endif
278 static void PMacSilence(void);
279 static void PMacInit(void);
280 static int PMacSetFormat(int format);
281 static int PMacSetVolume(int volume);
282 static void PMacPlay(void);
283 static void PMacRecord(void);
284 static irqreturn_t pmac_awacs_tx_intr(int irq, void *devid);
285 static irqreturn_t pmac_awacs_rx_intr(int irq, void *devid);
286 static irqreturn_t pmac_awacs_intr(int irq, void *devid);
287 static void awacs_write(int val);
288 static int awacs_get_volume(int reg, int lshift);
289 static int awacs_volume_setter(int volume, int n, int mute, int lshift);
290
291
292 /*** Mid level stuff **********************************************************/
293
294 static int PMacMixerIoctl(u_int cmd, u_long arg);
295 static int PMacWriteSqSetup(void);
296 static int PMacReadSqSetup(void);
297 static void PMacAbortRead(void);
298
299 extern TRANS transAwacsNormal ;
300 extern TRANS transAwacsExpand ;
301 extern TRANS transAwacsNormalRead ;
302 extern TRANS transAwacsExpandRead ;
303
304 extern int daca_init(void);
305 extern void daca_cleanup(void);
306 extern int daca_set_volume(uint left_vol, uint right_vol);
307 extern void daca_get_volume(uint * left_vol, uint *right_vol);
308 extern int daca_enter_sleep(void);
309 extern int daca_leave_sleep(void);
310
311 #define TRY_LOCK() \
312 if ((rc = mutex_lock_interruptible(&dmasound_mutex)) != 0) \
313 return rc;
314 #define LOCK() mutex_lock(&dmasound_mutex);
315
316 #define UNLOCK() mutex_unlock(&dmasound_mutex);
317
318 /* We use different versions that the ones provided in dmasound.h
319 *
320 * FIXME: Use different names ;)
321 */
322 #undef IOCTL_IN
323 #undef IOCTL_OUT
324
325 #define IOCTL_IN(arg, ret) \
326 rc = get_user(ret, (int __user *)(arg)); \
327 if (rc) break;
328 #define IOCTL_OUT(arg, ret) \
329 ioctl_return2((int __user *)(arg), ret)
330
331 static inline int ioctl_return2(int __user *addr, int value)
332 {
333 return value < 0 ? value : put_user(value, addr);
334 }
335
336
337 /*** AE - TUMBLER / SNAPPER START ************************************************/
338
339
340 int gpio_audio_reset, gpio_audio_reset_pol;
341 int gpio_amp_mute, gpio_amp_mute_pol;
342 int gpio_headphone_mute, gpio_headphone_mute_pol;
343 int gpio_headphone_detect, gpio_headphone_detect_pol;
344 int gpio_headphone_irq;
345
346 int
347 setup_audio_gpio(const char *name, const char* compatible, int *gpio_addr, int* gpio_pol)
348 {
349 struct device_node *gpiop;
350 struct device_node *np;
351 const u32* pp;
352 int ret = -ENODEV;
353
354 gpiop = of_find_node_by_name(NULL, "gpio");
355 if (!gpiop)
356 goto done;
357
358 np = of_get_next_child(gpiop, NULL);
359 while(np != 0) {
360 if (name) {
361 const char *property =
362 of_get_property(np,"audio-gpio",NULL);
363 if (property != 0 && strcmp(property,name) == 0)
364 break;
365 } else if (compatible && device_is_compatible(np, compatible))
366 break;
367 np = of_get_next_child(gpiop, np);
368 }
369 if (!np)
370 goto done;
371 pp = of_get_property(np, "AAPL,address", NULL);
372 if (!pp)
373 goto done;
374 *gpio_addr = (*pp) & 0x0000ffff;
375 pp = of_get_property(np, "audio-gpio-active-state", NULL);
376 if (pp)
377 *gpio_pol = *pp;
378 else
379 *gpio_pol = 1;
380 ret = irq_of_parse_and_map(np, 0);
381 done:
382 of_node_put(np);
383 of_node_put(gpiop);
384 return ret;
385 }
386
387 static inline void
388 write_audio_gpio(int gpio_addr, int data)
389 {
390 if (!gpio_addr)
391 return;
392 pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, gpio_addr, data ? 0x05 : 0x04);
393 }
394
395 static inline int
396 read_audio_gpio(int gpio_addr)
397 {
398 if (!gpio_addr)
399 return 0;
400 return ((pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, gpio_addr, 0) & 0x02) !=0);
401 }
402
403 /*
404 * Headphone interrupt via GPIO (Tumbler, Snapper, DACA)
405 */
406 static irqreturn_t
407 headphone_intr(int irq, void *devid)
408 {
409 unsigned long flags;
410
411 spin_lock_irqsave(&dmasound.lock, flags);
412 if (read_audio_gpio(gpio_headphone_detect) == gpio_headphone_detect_pol) {
413 printk(KERN_INFO "Audio jack plugged, muting speakers.\n");
414 write_audio_gpio(gpio_headphone_mute, !gpio_headphone_mute_pol);
415 write_audio_gpio(gpio_amp_mute, gpio_amp_mute_pol);
416 tas_output_device_change(sound_device_id,TAS_OUTPUT_HEADPHONES,0);
417 } else {
418 printk(KERN_INFO "Audio jack unplugged, enabling speakers.\n");
419 write_audio_gpio(gpio_amp_mute, !gpio_amp_mute_pol);
420 write_audio_gpio(gpio_headphone_mute, gpio_headphone_mute_pol);
421 tas_output_device_change(sound_device_id,TAS_OUTPUT_INTERNAL_SPKR,0);
422 }
423 spin_unlock_irqrestore(&dmasound.lock, flags);
424 return IRQ_HANDLED;
425 }
426
427
428 /* Initialize tumbler */
429
430 static int
431 tas_dmasound_init(void)
432 {
433 setup_audio_gpio(
434 "audio-hw-reset",
435 NULL,
436 &gpio_audio_reset,
437 &gpio_audio_reset_pol);
438 setup_audio_gpio(
439 "amp-mute",
440 NULL,
441 &gpio_amp_mute,
442 &gpio_amp_mute_pol);
443 setup_audio_gpio("headphone-mute",
444 NULL,
445 &gpio_headphone_mute,
446 &gpio_headphone_mute_pol);
447 gpio_headphone_irq = setup_audio_gpio(
448 "headphone-detect",
449 NULL,
450 &gpio_headphone_detect,
451 &gpio_headphone_detect_pol);
452 /* Fix some broken OF entries in desktop machines */
453 if (!gpio_headphone_irq)
454 gpio_headphone_irq = setup_audio_gpio(
455 NULL,
456 "keywest-gpio15",
457 &gpio_headphone_detect,
458 &gpio_headphone_detect_pol);
459
460 write_audio_gpio(gpio_audio_reset, gpio_audio_reset_pol);
461 msleep(100);
462 write_audio_gpio(gpio_audio_reset, !gpio_audio_reset_pol);
463 msleep(100);
464 if (gpio_headphone_irq) {
465 if (request_irq(gpio_headphone_irq,headphone_intr,0,"Headphone detect",NULL) < 0) {
466 printk(KERN_ERR "tumbler: Can't request headphone interrupt\n");
467 gpio_headphone_irq = 0;
468 } else {
469 u8 val;
470 /* Activate headphone status interrupts */
471 val = pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, gpio_headphone_detect, 0);
472 pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, gpio_headphone_detect, val | 0x80);
473 /* Trigger it */
474 headphone_intr(0, NULL);
475 }
476 }
477 if (!gpio_headphone_irq) {
478 /* Some machine enter this case ? */
479 printk(KERN_WARNING "tumbler: Headphone detect IRQ not found, enabling all outputs !\n");
480 write_audio_gpio(gpio_amp_mute, !gpio_amp_mute_pol);
481 write_audio_gpio(gpio_headphone_mute, !gpio_headphone_mute_pol);
482 }
483 return 0;
484 }
485
486
487 static int
488 tas_dmasound_cleanup(void)
489 {
490 if (gpio_headphone_irq)
491 free_irq(gpio_headphone_irq, NULL);
492 return 0;
493 }
494
495 /* We don't support 48k yet */
496 static int tas_freqs[1] = { 44100 } ;
497 static int tas_freqs_ok[1] = { 1 } ;
498
499 /* don't know what to do really - just have to leave it where
500 * OF left things
501 */
502
503 static int
504 tas_set_frame_rate(void)
505 {
506 if (i2s) {
507 out_le32(i2s + (I2S_REG_SERIAL_FORMAT >> 2), 0x41190000);
508 out_le32(i2s + (I2S_REG_DATAWORD_SIZES >> 2), 0x02000200);
509 }
510 dmasound.hard.speed = 44100 ;
511 awacs_rate_index = 0 ;
512 return 44100 ;
513 }
514
515 static int
516 tas_mixer_ioctl(u_int cmd, u_long arg)
517 {
518 int __user *argp = (int __user *)arg;
519 int data;
520 int rc;
521
522 rc=tas_device_ioctl(cmd, arg);
523 if (rc != -EINVAL) {
524 return rc;
525 }
526
527 if ((cmd & ~0xff) == MIXER_WRITE(0) &&
528 tas_supported_mixers() & (1<<(cmd & 0xff))) {
529 rc = get_user(data, argp);
530 if (rc<0) return rc;
531 tas_set_mixer_level(cmd & 0xff, data);
532 tas_get_mixer_level(cmd & 0xff, &data);
533 return ioctl_return2(argp, data);
534 }
535 if ((cmd & ~0xff) == MIXER_READ(0) &&
536 tas_supported_mixers() & (1<<(cmd & 0xff))) {
537 tas_get_mixer_level(cmd & 0xff, &data);
538 return ioctl_return2(argp, data);
539 }
540
541 switch(cmd) {
542 case SOUND_MIXER_READ_DEVMASK:
543 data = tas_supported_mixers() | SOUND_MASK_SPEAKER;
544 rc = IOCTL_OUT(arg, data);
545 break;
546 case SOUND_MIXER_READ_STEREODEVS:
547 data = tas_stereo_mixers();
548 rc = IOCTL_OUT(arg, data);
549 break;
550 case SOUND_MIXER_READ_CAPS:
551 rc = IOCTL_OUT(arg, 0);
552 break;
553 case SOUND_MIXER_READ_RECMASK:
554 // XXX FIXME: find a way to check what is really available */
555 data = SOUND_MASK_LINE | SOUND_MASK_MIC;
556 rc = IOCTL_OUT(arg, data);
557 break;
558 case SOUND_MIXER_READ_RECSRC:
559 if (awacs_reg[0] & MASK_MUX_AUDIN)
560 data |= SOUND_MASK_LINE;
561 if (awacs_reg[0] & MASK_MUX_MIC)
562 data |= SOUND_MASK_MIC;
563 rc = IOCTL_OUT(arg, data);
564 break;
565 case SOUND_MIXER_WRITE_RECSRC:
566 IOCTL_IN(arg, data);
567 data =0;
568 rc = IOCTL_OUT(arg, data);
569 break;
570 case SOUND_MIXER_WRITE_SPEAKER: /* really bell volume */
571 IOCTL_IN(arg, data);
572 beep_vol = data & 0xff;
573 /* fall through */
574 case SOUND_MIXER_READ_SPEAKER:
575 rc = IOCTL_OUT(arg, (beep_vol<<8) | beep_vol);
576 break;
577 case SOUND_MIXER_OUTMASK:
578 case SOUND_MIXER_OUTSRC:
579 default:
580 rc = -EINVAL;
581 }
582
583 return rc;
584 }
585
586 static void __init
587 tas_init_frame_rates(const unsigned int *prop, unsigned int l)
588 {
589 int i ;
590 if (prop) {
591 for (i=0; i<1; i++)
592 tas_freqs_ok[i] = 0;
593 for (l /= sizeof(int); l > 0; --l) {
594 unsigned int r = *prop++;
595 /* Apple 'Fixed' format */
596 if (r >= 0x10000)
597 r >>= 16;
598 for (i = 0; i < 1; ++i) {
599 if (r == tas_freqs[i]) {
600 tas_freqs_ok[i] = 1;
601 break;
602 }
603 }
604 }
605 }
606 /* else we assume that all the rates are available */
607 }
608
609
610 /*** AE - TUMBLER / SNAPPER END ************************************************/
611
612
613
614 /*** Low level stuff *********************************************************/
615
616 /*
617 * PCI PowerMac, with AWACS, Screamer, Burgundy, DACA or Tumbler and DBDMA.
618 */
619 static void *PMacAlloc(unsigned int size, gfp_t flags)
620 {
621 return kmalloc(size, flags);
622 }
623
624 static void PMacFree(void *ptr, unsigned int size)
625 {
626 kfree(ptr);
627 }
628
629 static int __init PMacIrqInit(void)
630 {
631 if (awacs)
632 if (request_irq(awacs_irq, pmac_awacs_intr, 0, "Built-in Sound misc", NULL))
633 return 0;
634 if (request_irq(awacs_tx_irq, pmac_awacs_tx_intr, 0, "Built-in Sound out", NULL)
635 || request_irq(awacs_rx_irq, pmac_awacs_rx_intr, 0, "Built-in Sound in", NULL))
636 return 0;
637 return 1;
638 }
639
640 #ifdef MODULE
641 static void PMacIrqCleanup(void)
642 {
643 /* turn off input & output dma */
644 DBDMA_DO_STOP(awacs_txdma);
645 DBDMA_DO_STOP(awacs_rxdma);
646
647 if (awacs)
648 /* disable interrupts from awacs interface */
649 out_le32(&awacs->control, in_le32(&awacs->control) & 0xfff);
650
651 /* Switch off the sound clock */
652 pmac_call_feature(PMAC_FTR_SOUND_CHIP_ENABLE, awacs_node, 0, 0);
653 /* Make sure proper bits are set on pismo & tipb */
654 if ((machine_is_compatible("PowerBook3,1") ||
655 machine_is_compatible("PowerBook3,2")) && awacs) {
656 awacs_reg[1] |= MASK_PAROUT0 | MASK_PAROUT1;
657 awacs_write(MASK_ADDR1 | awacs_reg[1]);
658 msleep(200);
659 }
660 if (awacs)
661 free_irq(awacs_irq, NULL);
662 free_irq(awacs_tx_irq, NULL);
663 free_irq(awacs_rx_irq, NULL);
664
665 if (awacs)
666 iounmap(awacs);
667 if (i2s)
668 iounmap(i2s);
669 iounmap(awacs_txdma);
670 iounmap(awacs_rxdma);
671
672 release_mem_region(awacs_rsrc[0].start,
673 awacs_rsrc[0].end - awacs_rsrc[0].start + 1);
674 release_mem_region(awacs_rsrc[1].start,
675 awacs_rsrc[1].end - awacs_rsrc[1].start + 1);
676 release_mem_region(awacs_rsrc[2].start,
677 awacs_rsrc[2].end - awacs_rsrc[2].start + 1);
678
679 kfree(awacs_tx_cmd_space);
680 kfree(awacs_rx_cmd_space);
681 kfree(beep_dbdma_cmd_space);
682 kfree(beep_buf);
683 #ifdef CONFIG_PM
684 pmu_unregister_sleep_notifier(&awacs_sleep_notifier);
685 #endif
686 }
687 #endif /* MODULE */
688
689 static void PMacSilence(void)
690 {
691 /* turn off output dma */
692 DBDMA_DO_STOP(awacs_txdma);
693 }
694
695 /* don't know what to do really - just have to leave it where
696 * OF left things
697 */
698
699 static int daca_set_frame_rate(void)
700 {
701 if (i2s) {
702 out_le32(i2s + (I2S_REG_SERIAL_FORMAT >> 2), 0x41190000);
703 out_le32(i2s + (I2S_REG_DATAWORD_SIZES >> 2), 0x02000200);
704 }
705 dmasound.hard.speed = 44100 ;
706 awacs_rate_index = 0 ;
707 return 44100 ;
708 }
709
710 static int awacs_freqs[8] = {
711 44100, 29400, 22050, 17640, 14700, 11025, 8820, 7350
712 };
713 static int awacs_freqs_ok[8] = { 1, 1, 1, 1, 1, 1, 1, 1 };
714
715 static int
716 awacs_set_frame_rate(int desired, int catch_r)
717 {
718 int tolerance, i = 8 ;
719 /*
720 * If we have a sample rate which is within catchRadius percent
721 * of the requested value, we don't have to expand the samples.
722 * Otherwise choose the next higher rate.
723 * N.B.: burgundy awacs only works at 44100 Hz.
724 */
725 do {
726 tolerance = catch_r * awacs_freqs[--i] / 100;
727 if (awacs_freqs_ok[i]
728 && dmasound.soft.speed <= awacs_freqs[i] + tolerance)
729 break;
730 } while (i > 0);
731 dmasound.hard.speed = awacs_freqs[i];
732 awacs_rate_index = i;
733
734 out_le32(&awacs->control, MASK_IEPC | (i << 8) | 0x11 );
735 awacs_reg[1] = (awacs_reg[1] & ~MASK_SAMPLERATE) | (i << 3);
736 awacs_write(awacs_reg[1] | MASK_ADDR1);
737 return dmasound.hard.speed;
738 }
739
740 static int
741 burgundy_set_frame_rate(void)
742 {
743 awacs_rate_index = 0 ;
744 awacs_reg[1] = (awacs_reg[1] & ~MASK_SAMPLERATE) ;
745 /* XXX disable error interrupt on burgundy for now */
746 out_le32(&awacs->control, MASK_IEPC | 0 | 0x11 | MASK_IEE);
747 return 44100 ;
748 }
749
750 static int
751 set_frame_rate(int desired, int catch_r)
752 {
753 switch (awacs_revision) {
754 case AWACS_BURGUNDY:
755 dmasound.hard.speed = burgundy_set_frame_rate();
756 break ;
757 case AWACS_TUMBLER:
758 case AWACS_SNAPPER:
759 dmasound.hard.speed = tas_set_frame_rate();
760 break ;
761 case AWACS_DACA:
762 dmasound.hard.speed =
763 daca_set_frame_rate();
764 break ;
765 default:
766 dmasound.hard.speed = awacs_set_frame_rate(desired,
767 catch_r);
768 break ;
769 }
770 return dmasound.hard.speed ;
771 }
772
773 static void
774 awacs_recalibrate(void)
775 {
776 /* Sorry for the horrible delays... I hope to get that improved
777 * by making the whole PM process asynchronous in a future version
778 */
779 msleep(750);
780 awacs_reg[1] |= MASK_CMUTE | MASK_AMUTE;
781 awacs_write(awacs_reg[1] | MASK_RECALIBRATE | MASK_ADDR1);
782 msleep(1000);
783 awacs_write(awacs_reg[1] | MASK_ADDR1);
784 }
785
786 static void PMacInit(void)
787 {
788 int tolerance;
789
790 switch (dmasound.soft.format) {
791 case AFMT_S16_LE:
792 case AFMT_U16_LE:
793 if (hw_can_byteswap)
794 dmasound.hard.format = AFMT_S16_LE;
795 else
796 dmasound.hard.format = AFMT_S16_BE;
797 break;
798 default:
799 dmasound.hard.format = AFMT_S16_BE;
800 break;
801 }
802 dmasound.hard.stereo = 1;
803 dmasound.hard.size = 16;
804
805 /* set dmasound.hard.speed - on the basis of what we want (soft)
806 * and the tolerance we'll allow.
807 */
808 set_frame_rate(dmasound.soft.speed, catchRadius) ;
809
810 tolerance = (catchRadius * dmasound.hard.speed) / 100;
811 if (dmasound.soft.speed >= dmasound.hard.speed - tolerance) {
812 dmasound.trans_write = &transAwacsNormal;
813 dmasound.trans_read = &transAwacsNormalRead;
814 } else {
815 dmasound.trans_write = &transAwacsExpand;
816 dmasound.trans_read = &transAwacsExpandRead;
817 }
818
819 if (awacs) {
820 if (hw_can_byteswap && (dmasound.hard.format == AFMT_S16_LE))
821 out_le32(&awacs->byteswap, BS_VAL);
822 else
823 out_le32(&awacs->byteswap, 0);
824 }
825
826 expand_bal = -dmasound.soft.speed;
827 expand_read_bal = -dmasound.soft.speed;
828 }
829
830 static int PMacSetFormat(int format)
831 {
832 int size;
833 int req_format = format;
834
835 switch (format) {
836 case AFMT_QUERY:
837 return dmasound.soft.format;
838 case AFMT_MU_LAW:
839 case AFMT_A_LAW:
840 case AFMT_U8:
841 case AFMT_S8:
842 size = 8;
843 break;
844 case AFMT_S16_LE:
845 if(!hw_can_byteswap)
846 format = AFMT_S16_BE;
847 case AFMT_S16_BE:
848 size = 16;
849 break;
850 case AFMT_U16_LE:
851 if(!hw_can_byteswap)
852 format = AFMT_U16_BE;
853 case AFMT_U16_BE:
854 size = 16;
855 break;
856 default: /* :-) */
857 printk(KERN_ERR "dmasound: unknown format 0x%x, using AFMT_U8\n",
858 format);
859 size = 8;
860 format = AFMT_U8;
861 }
862
863 if (req_format == format) {
864 dmasound.soft.format = format;
865 dmasound.soft.size = size;
866 if (dmasound.minDev == SND_DEV_DSP) {
867 dmasound.dsp.format = format;
868 dmasound.dsp.size = size;
869 }
870 }
871
872 return format;
873 }
874
875 #define AWACS_VOLUME_TO_MASK(x) (15 - ((((x) - 1) * 15) / 99))
876 #define AWACS_MASK_TO_VOLUME(y) (100 - ((y) * 99 / 15))
877
878 static int awacs_get_volume(int reg, int lshift)
879 {
880 int volume;
881
882 volume = AWACS_MASK_TO_VOLUME((reg >> lshift) & 0xf);
883 volume |= AWACS_MASK_TO_VOLUME(reg & 0xf) << 8;
884 return volume;
885 }
886
887 static int awacs_volume_setter(int volume, int n, int mute, int lshift)
888 {
889 int r1, rn;
890
891 if (mute && volume == 0) {
892 r1 = awacs_reg[1] | mute;
893 } else {
894 r1 = awacs_reg[1] & ~mute;
895 rn = awacs_reg[n] & ~(0xf | (0xf << lshift));
896 rn |= ((AWACS_VOLUME_TO_MASK(volume & 0xff) & 0xf) << lshift);
897 rn |= AWACS_VOLUME_TO_MASK((volume >> 8) & 0xff) & 0xf;
898 awacs_reg[n] = rn;
899 awacs_write((n << 12) | rn);
900 volume = awacs_get_volume(rn, lshift);
901 }
902 if (r1 != awacs_reg[1]) {
903 awacs_reg[1] = r1;
904 awacs_write(r1 | MASK_ADDR1);
905 }
906 return volume;
907 }
908
909 static int PMacSetVolume(int volume)
910 {
911 printk(KERN_WARNING "Bogus call to PMacSetVolume !\n");
912 return 0;
913 }
914
915 static void awacs_setup_for_beep(int speed)
916 {
917 out_le32(&awacs->control,
918 (in_le32(&awacs->control) & ~0x1f00)
919 | ((speed > 0 ? speed : awacs_rate_index) << 8));
920
921 if (hw_can_byteswap && (dmasound.hard.format == AFMT_S16_LE) && speed == -1)
922 out_le32(&awacs->byteswap, BS_VAL);
923 else
924 out_le32(&awacs->byteswap, 0);
925 }
926
927 /* CHECK: how much of this *really* needs IRQs masked? */
928 static void __PMacPlay(void)
929 {
930 volatile struct dbdma_cmd *cp;
931 int next_frg, count;
932
933 count = 300 ; /* > two cycles at the lowest sample rate */
934
935 /* what we want to send next */
936 next_frg = (write_sq.front + write_sq.active) % write_sq.max_count;
937
938 if (awacs_beep_state) {
939 /* sound takes precedence over beeps */
940 /* stop the dma channel */
941 out_le32(&awacs_txdma->control, (RUN|PAUSE|FLUSH|WAKE) << 16);
942 while ( (in_le32(&awacs_txdma->status) & RUN) && count--)
943 udelay(1);
944 if (awacs)
945 awacs_setup_for_beep(-1);
946 out_le32(&awacs_txdma->cmdptr,
947 virt_to_bus(&(awacs_tx_cmds[next_frg])));
948
949 beep_playing = 0;
950 awacs_beep_state = 0;
951 }
952 /* this won't allow more than two frags to be in the output queue at
953 once. (or one, if the max frags is 2 - because count can't exceed
954 2 in that case)
955 */
956 while (write_sq.active < 2 && write_sq.active < write_sq.count) {
957 count = (write_sq.count == write_sq.active + 1) ?
958 write_sq.rear_size:write_sq.block_size ;
959 if (count < write_sq.block_size) {
960 if (!write_sq.syncing) /* last block not yet filled,*/
961 break; /* and we're not syncing or POST-ed */
962 else {
963 /* pretend the block is full to force a new
964 block to be started on the next write */
965 write_sq.rear_size = write_sq.block_size ;
966 write_sq.syncing &= ~2 ; /* clear POST */
967 }
968 }
969 cp = &awacs_tx_cmds[next_frg];
970 st_le16(&cp->req_count, count);
971 st_le16(&cp->xfer_status, 0);
972 st_le16(&cp->command, OUTPUT_MORE + INTR_ALWAYS);
973 /* put a STOP at the end of the queue - but only if we have
974 space for it. This means that, if we under-run and we only
975 have two fragments, we might re-play sound from an existing
976 queued frag. I guess the solution to that is not to set two
977 frags if you are likely to under-run...
978 */
979 if (write_sq.count < write_sq.max_count) {
980 if (++next_frg >= write_sq.max_count)
981 next_frg = 0 ; /* wrap */
982 /* if we get here then we've underrun so we will stop*/
983 st_le16(&awacs_tx_cmds[next_frg].command, DBDMA_STOP);
984 }
985 /* set the dbdma controller going, if it is not already */
986 if (write_sq.active == 0)
987 out_le32(&awacs_txdma->cmdptr, virt_to_bus(cp));
988 (void)in_le32(&awacs_txdma->status);
989 out_le32(&awacs_txdma->control, ((RUN|WAKE) << 16) + (RUN|WAKE));
990 ++write_sq.active;
991 }
992 }
993
994 static void PMacPlay(void)
995 {
996 LOCK();
997 if (!awacs_sleeping) {
998 unsigned long flags;
999
1000 spin_lock_irqsave(&dmasound.lock, flags);
1001 __PMacPlay();
1002 spin_unlock_irqrestore(&dmasound.lock, flags);
1003 }
1004 UNLOCK();
1005 }
1006
1007 static void PMacRecord(void)
1008 {
1009 unsigned long flags;
1010
1011 if (read_sq.active)
1012 return;
1013
1014 spin_lock_irqsave(&dmasound.lock, flags);
1015
1016 /* This is all we have to do......Just start it up.
1017 */
1018 out_le32(&awacs_rxdma->control, ((RUN|WAKE) << 16) + (RUN|WAKE));
1019 read_sq.active = 1;
1020
1021 spin_unlock_irqrestore(&dmasound.lock, flags);
1022 }
1023
1024 /* if the TX status comes up "DEAD" - reported on some Power Computing machines
1025 we need to re-start the dbdma - but from a different physical start address
1026 and with a different transfer length. It would get very messy to do this
1027 with the normal dbdma_cmd blocks - we would have to re-write the buffer start
1028 addresses each time. So, we will keep a single dbdma_cmd block which can be
1029 fiddled with.
1030 When DEAD status is first reported the content of the faulted dbdma block is
1031 copied into the emergency buffer and we note that the buffer is in use.
1032 we then bump the start physical address by the amount that was successfully
1033 output before it died.
1034 On any subsequent DEAD result we just do the bump-ups (we know that we are
1035 already using the emergency dbdma_cmd).
1036 CHECK: this just tries to "do it". It is possible that we should abandon
1037 xfers when the number of residual bytes gets below a certain value - I can
1038 see that this might cause a loop-forever if too small a transfer causes
1039 DEAD status. However this is a TODO for now - we'll see what gets reported.
1040 When we get a successful transfer result with the emergency buffer we just
1041 pretend that it completed using the original dmdma_cmd and carry on. The
1042 'next_cmd' field will already point back to the original loop of blocks.
1043 */
1044
1045 static irqreturn_t
1046 pmac_awacs_tx_intr(int irq, void *devid)
1047 {
1048 int i = write_sq.front;
1049 int stat;
1050 int i_nowrap = write_sq.front;
1051 volatile struct dbdma_cmd *cp;
1052 /* != 0 when we are dealing with a DEAD xfer */
1053 static int emergency_in_use;
1054
1055 spin_lock(&dmasound.lock);
1056 while (write_sq.active > 0) { /* we expect to have done something*/
1057 if (emergency_in_use) /* we are dealing with DEAD xfer */
1058 cp = emergency_dbdma_cmd ;
1059 else
1060 cp = &awacs_tx_cmds[i];
1061 stat = ld_le16(&cp->xfer_status);
1062 if (stat & DEAD) {
1063 unsigned short req, res ;
1064 unsigned int phy ;
1065 #ifdef DEBUG_DMASOUND
1066 printk("dmasound_pmac: tx-irq: xfer died - patching it up...\n") ;
1067 #endif
1068 /* to clear DEAD status we must first clear RUN
1069 set it to quiescent to be on the safe side */
1070 (void)in_le32(&awacs_txdma->status);
1071 out_le32(&awacs_txdma->control,
1072 (RUN|PAUSE|FLUSH|WAKE) << 16);
1073 write_sq.died++ ;
1074 if (!emergency_in_use) { /* new problem */
1075 memcpy((void *)emergency_dbdma_cmd, (void *)cp,
1076 sizeof(struct dbdma_cmd));
1077 emergency_in_use = 1;
1078 cp = emergency_dbdma_cmd;
1079 }
1080 /* now bump the values to reflect the amount
1081 we haven't yet shifted */
1082 req = ld_le16(&cp->req_count);
1083 res = ld_le16(&cp->res_count);
1084 phy = ld_le32(&cp->phy_addr);
1085 phy += (req - res);
1086 st_le16(&cp->req_count, res);
1087 st_le16(&cp->res_count, 0);
1088 st_le16(&cp->xfer_status, 0);
1089 st_le32(&cp->phy_addr, phy);
1090 st_le32(&cp->cmd_dep, virt_to_bus(&awacs_tx_cmds[(i+1)%write_sq.max_count]));
1091 st_le16(&cp->command, OUTPUT_MORE | BR_ALWAYS | INTR_ALWAYS);
1092
1093 /* point at our patched up command block */
1094 out_le32(&awacs_txdma->cmdptr, virt_to_bus(cp));
1095 /* we must re-start the controller */
1096 (void)in_le32(&awacs_txdma->status);
1097 /* should complete clearing the DEAD status */
1098 out_le32(&awacs_txdma->control,
1099 ((RUN|WAKE) << 16) + (RUN|WAKE));
1100 break; /* this block is still going */
1101 }
1102 if ((stat & ACTIVE) == 0)
1103 break; /* this frame is still going */
1104 if (emergency_in_use)
1105 emergency_in_use = 0 ; /* done that */
1106 --write_sq.count;
1107 --write_sq.active;
1108 i_nowrap++;
1109 if (++i >= write_sq.max_count)
1110 i = 0;
1111 }
1112
1113 /* if we stopped and we were not sync-ing - then we under-ran */
1114 if( write_sq.syncing == 0 ){
1115 stat = in_le32(&awacs_txdma->status) ;
1116 /* we hit the dbdma_stop */
1117 if( (stat & ACTIVE) == 0 ) write_sq.xruns++ ;
1118 }
1119
1120 /* if we used some data up then wake the writer to supply some more*/
1121 if (i_nowrap != write_sq.front)
1122 WAKE_UP(write_sq.action_queue);
1123 write_sq.front = i;
1124
1125 /* but make sure we funnel what we've already got */\
1126 if (!awacs_sleeping)
1127 __PMacPlay();
1128
1129 /* make the wake-on-empty conditional on syncing */
1130 if (!write_sq.active && (write_sq.syncing & 1))
1131 WAKE_UP(write_sq.sync_queue); /* any time we're empty */
1132 spin_unlock(&dmasound.lock);
1133 return IRQ_HANDLED;
1134 }
1135
1136
1137 static irqreturn_t
1138 pmac_awacs_rx_intr(int irq, void *devid)
1139 {
1140 int stat ;
1141 /* For some reason on my PowerBook G3, I get one interrupt
1142 * when the interrupt vector is installed (like something is
1143 * pending). This happens before the dbdma is initialized by
1144 * us, so I just check the command pointer and if it is zero,
1145 * just blow it off.
1146 */
1147 if (in_le32(&awacs_rxdma->cmdptr) == 0)
1148 return IRQ_HANDLED;
1149
1150 /* We also want to blow 'em off when shutting down.
1151 */
1152 if (read_sq.active == 0)
1153 return IRQ_HANDLED;
1154
1155 spin_lock(&dmasound.lock);
1156 /* Check multiple buffers in case we were held off from
1157 * interrupt processing for a long time. Geeze, I really hope
1158 * this doesn't happen.
1159 */
1160 while ((stat=awacs_rx_cmds[read_sq.rear].xfer_status)) {
1161
1162 /* if we got a "DEAD" status then just log it for now.
1163 and try to restart dma.
1164 TODO: figure out how best to fix it up
1165 */
1166 if (stat & DEAD){
1167 #ifdef DEBUG_DMASOUND
1168 printk("dmasound_pmac: rx-irq: DIED - attempting resurection\n");
1169 #endif
1170 /* to clear DEAD status we must first clear RUN
1171 set it to quiescent to be on the safe side */
1172 (void)in_le32(&awacs_txdma->status);
1173 out_le32(&awacs_txdma->control,
1174 (RUN|PAUSE|FLUSH|WAKE) << 16);
1175 awacs_rx_cmds[read_sq.rear].xfer_status = 0;
1176 awacs_rx_cmds[read_sq.rear].res_count = 0;
1177 read_sq.died++ ;
1178 (void)in_le32(&awacs_txdma->status);
1179 /* re-start the same block */
1180 out_le32(&awacs_rxdma->cmdptr,
1181 virt_to_bus(&awacs_rx_cmds[read_sq.rear]));
1182 /* we must re-start the controller */
1183 (void)in_le32(&awacs_rxdma->status);
1184 /* should complete clearing the DEAD status */
1185 out_le32(&awacs_rxdma->control,
1186 ((RUN|WAKE) << 16) + (RUN|WAKE));
1187 spin_unlock(&dmasound.lock);
1188 return IRQ_HANDLED; /* try this block again */
1189 }
1190 /* Clear status and move on to next buffer.
1191 */
1192 awacs_rx_cmds[read_sq.rear].xfer_status = 0;
1193 read_sq.rear++;
1194
1195 /* Wrap the buffer ring.
1196 */
1197 if (read_sq.rear >= read_sq.max_active)
1198 read_sq.rear = 0;
1199
1200 /* If we have caught up to the front buffer, bump it.
1201 * This will cause weird (but not fatal) results if the
1202 * read loop is currently using this buffer. The user is
1203 * behind in this case anyway, so weird things are going
1204 * to happen.
1205 */
1206 if (read_sq.rear == read_sq.front) {
1207 read_sq.front++;
1208 read_sq.xruns++ ; /* we overan */
1209 if (read_sq.front >= read_sq.max_active)
1210 read_sq.front = 0;
1211 }
1212 }
1213
1214 WAKE_UP(read_sq.action_queue);
1215 spin_unlock(&dmasound.lock);
1216 return IRQ_HANDLED;
1217 }
1218
1219
1220 static irqreturn_t
1221 pmac_awacs_intr(int irq, void *devid)
1222 {
1223 int ctrl;
1224 int status;
1225 int r1;
1226
1227 spin_lock(&dmasound.lock);
1228 ctrl = in_le32(&awacs->control);
1229 status = in_le32(&awacs->codec_stat);
1230
1231 if (ctrl & MASK_PORTCHG) {
1232 /* tested on Screamer, should work on others too */
1233 if (awacs_revision == AWACS_SCREAMER) {
1234 if (((status & MASK_HDPCONN) >> 3) && (hdp_connected == 0)) {
1235 hdp_connected = 1;
1236
1237 r1 = awacs_reg[1] | MASK_SPKMUTE;
1238 awacs_reg[1] = r1;
1239 awacs_write(r1 | MASK_ADDR_MUTE);
1240 } else if (((status & MASK_HDPCONN) >> 3 == 0) && (hdp_connected == 1)) {
1241 hdp_connected = 0;
1242
1243 r1 = awacs_reg[1] & ~MASK_SPKMUTE;
1244 awacs_reg[1] = r1;
1245 awacs_write(r1 | MASK_ADDR_MUTE);
1246 }
1247 }
1248 }
1249 if (ctrl & MASK_CNTLERR) {
1250 int err = (in_le32(&awacs->codec_stat) & MASK_ERRCODE) >> 16;
1251 /* CHECK: we just swallow burgundy errors at the moment..*/
1252 if (err != 0 && awacs_revision != AWACS_BURGUNDY)
1253 printk(KERN_ERR "dmasound_pmac: error %x\n", err);
1254 }
1255 /* Writing 1s to the CNTLERR and PORTCHG bits clears them... */
1256 out_le32(&awacs->control, ctrl);
1257 spin_unlock(&dmasound.lock);
1258 return IRQ_HANDLED;
1259 }
1260
1261 static void
1262 awacs_write(int val)
1263 {
1264 int count = 300 ;
1265 if (awacs_revision >= AWACS_DACA || !awacs)
1266 return ;
1267
1268 while ((in_le32(&awacs->codec_ctrl) & MASK_NEWECMD) && count--)
1269 udelay(1) ; /* timeout is > 2 samples at lowest rate */
1270 out_le32(&awacs->codec_ctrl, val | (awacs_subframe << 22));
1271 (void)in_le32(&awacs->byteswap);
1272 }
1273
1274 /* this is called when the beep timer expires... it will be called even
1275 if the beep has been overidden by other sound output.
1276 */
1277 static void awacs_nosound(unsigned long xx)
1278 {
1279 unsigned long flags;
1280 int count = 600 ; /* > four samples at lowest rate */
1281
1282 spin_lock_irqsave(&dmasound.lock, flags);
1283 if (beep_playing) {
1284 st_le16(&beep_dbdma_cmd->command, DBDMA_STOP);
1285 out_le32(&awacs_txdma->control, (RUN|PAUSE|FLUSH|WAKE) << 16);
1286 while ((in_le32(&awacs_txdma->status) & RUN) && count--)
1287 udelay(1);
1288 if (awacs)
1289 awacs_setup_for_beep(-1);
1290 beep_playing = 0;
1291 }
1292 spin_unlock_irqrestore(&dmasound.lock, flags);
1293 }
1294
1295 /*
1296 * We generate the beep with a single dbdma command that loops a buffer
1297 * forever - without generating interrupts.
1298 *
1299 * So, to stop it you have to stop dma output as per awacs_nosound.
1300 */
1301 static int awacs_beep_event(struct input_dev *dev, unsigned int type,
1302 unsigned int code, int hz)
1303 {
1304 unsigned long flags;
1305 int beep_speed = 0;
1306 int srate;
1307 int period, ncycles, nsamples;
1308 int i, j, f;
1309 short *p;
1310 static int beep_hz_cache;
1311 static int beep_nsamples_cache;
1312 static int beep_volume_cache;
1313
1314 if (type != EV_SND)
1315 return -1;
1316 switch (code) {
1317 case SND_BELL:
1318 if (hz)
1319 hz = 1000;
1320 break;
1321 case SND_TONE:
1322 break;
1323 default:
1324 return -1;
1325 }
1326
1327 if (beep_buf == NULL)
1328 return -1;
1329
1330 /* quick-hack fix for DACA, Burgundy & Tumbler */
1331
1332 if (awacs_revision >= AWACS_DACA){
1333 srate = 44100 ;
1334 } else {
1335 for (i = 0; i < 8 && awacs_freqs[i] >= BEEP_SRATE; ++i)
1336 if (awacs_freqs_ok[i])
1337 beep_speed = i;
1338 srate = awacs_freqs[beep_speed];
1339 }
1340
1341 if (hz <= srate / BEEP_BUFLEN || hz > srate / 2) {
1342 /* cancel beep currently playing */
1343 awacs_nosound(0);
1344 return 0;
1345 }
1346
1347 spin_lock_irqsave(&dmasound.lock, flags);
1348 if (beep_playing || write_sq.active || beep_buf == NULL) {
1349 spin_unlock_irqrestore(&dmasound.lock, flags);
1350 return -1; /* too hard, sorry :-( */
1351 }
1352 beep_playing = 1;
1353 st_le16(&beep_dbdma_cmd->command, OUTPUT_MORE + BR_ALWAYS);
1354 spin_unlock_irqrestore(&dmasound.lock, flags);
1355
1356 if (hz == beep_hz_cache && beep_vol == beep_volume_cache) {
1357 nsamples = beep_nsamples_cache;
1358 } else {
1359 period = srate * 256 / hz; /* fixed point */
1360 ncycles = BEEP_BUFLEN * 256 / period;
1361 nsamples = (period * ncycles) >> 8;
1362 f = ncycles * 65536 / nsamples;
1363 j = 0;
1364 p = beep_buf;
1365 for (i = 0; i < nsamples; ++i, p += 2) {
1366 p[0] = p[1] = beep_wform[j >> 8] * beep_vol;
1367 j = (j + f) & 0xffff;
1368 }
1369 beep_hz_cache = hz;
1370 beep_volume_cache = beep_vol;
1371 beep_nsamples_cache = nsamples;
1372 }
1373
1374 st_le16(&beep_dbdma_cmd->req_count, nsamples*4);
1375 st_le16(&beep_dbdma_cmd->xfer_status, 0);
1376 st_le32(&beep_dbdma_cmd->cmd_dep, virt_to_bus(beep_dbdma_cmd));
1377 st_le32(&beep_dbdma_cmd->phy_addr, virt_to_bus(beep_buf));
1378 awacs_beep_state = 1;
1379
1380 spin_lock_irqsave(&dmasound.lock, flags);
1381 if (beep_playing) { /* i.e. haven't been terminated already */
1382 int count = 300 ;
1383 out_le32(&awacs_txdma->control, (RUN|WAKE|FLUSH|PAUSE) << 16);
1384 while ((in_le32(&awacs_txdma->status) & RUN) && count--)
1385 udelay(1); /* timeout > 2 samples at lowest rate*/
1386 if (awacs)
1387 awacs_setup_for_beep(beep_speed);
1388 out_le32(&awacs_txdma->cmdptr, virt_to_bus(beep_dbdma_cmd));
1389 (void)in_le32(&awacs_txdma->status);
1390 out_le32(&awacs_txdma->control, RUN | (RUN << 16));
1391 }
1392 spin_unlock_irqrestore(&dmasound.lock, flags);
1393
1394 return 0;
1395 }
1396
1397 /* used in init and for wake-up */
1398
1399 static void
1400 load_awacs(void)
1401 {
1402 awacs_write(awacs_reg[0] + MASK_ADDR0);
1403 awacs_write(awacs_reg[1] + MASK_ADDR1);
1404 awacs_write(awacs_reg[2] + MASK_ADDR2);
1405 awacs_write(awacs_reg[4] + MASK_ADDR4);
1406
1407 if (awacs_revision == AWACS_SCREAMER) {
1408 awacs_write(awacs_reg[5] + MASK_ADDR5);
1409 msleep(100);
1410 awacs_write(awacs_reg[6] + MASK_ADDR6);
1411 msleep(2);
1412 awacs_write(awacs_reg[1] + MASK_ADDR1);
1413 awacs_write(awacs_reg[7] + MASK_ADDR7);
1414 }
1415 if (awacs) {
1416 if (hw_can_byteswap && (dmasound.hard.format == AFMT_S16_LE))
1417 out_le32(&awacs->byteswap, BS_VAL);
1418 else
1419 out_le32(&awacs->byteswap, 0);
1420 }
1421 }
1422
1423 #ifdef CONFIG_PM
1424 /*
1425 * Save state when going to sleep, restore it afterwards.
1426 */
1427 /* FIXME: sort out disabling/re-enabling of read stuff as well */
1428 static void awacs_sleep_notify(struct pmu_sleep_notifier *self, int when)
1429 {
1430 unsigned long flags;
1431
1432 switch (when) {
1433 case PBOOK_SLEEP_NOW:
1434 LOCK();
1435 awacs_sleeping = 1;
1436 /* Tell the rest of the driver we are now going to sleep */
1437 mb();
1438 if (awacs_revision == AWACS_SCREAMER ||
1439 awacs_revision == AWACS_AWACS) {
1440 awacs_reg1_save = awacs_reg[1];
1441 awacs_reg[1] |= MASK_AMUTE | MASK_CMUTE;
1442 awacs_write(MASK_ADDR1 | awacs_reg[1]);
1443 }
1444
1445 PMacSilence();
1446 /* stop rx - if going - a bit of a daft user... but */
1447 out_le32(&awacs_rxdma->control, (RUN|WAKE|FLUSH << 16));
1448 /* deny interrupts */
1449 if (awacs)
1450 disable_irq(awacs_irq);
1451 disable_irq(awacs_tx_irq);
1452 disable_irq(awacs_rx_irq);
1453 /* Chip specific sleep code */
1454 switch (awacs_revision) {
1455 case AWACS_TUMBLER:
1456 case AWACS_SNAPPER:
1457 write_audio_gpio(gpio_headphone_mute, gpio_headphone_mute_pol);
1458 write_audio_gpio(gpio_amp_mute, gpio_amp_mute_pol);
1459 tas_enter_sleep();
1460 write_audio_gpio(gpio_audio_reset, gpio_audio_reset_pol);
1461 break ;
1462 case AWACS_DACA:
1463 daca_enter_sleep();
1464 break ;
1465 case AWACS_BURGUNDY:
1466 break ;
1467 case AWACS_SCREAMER:
1468 case AWACS_AWACS:
1469 default:
1470 out_le32(&awacs->control, 0x11) ;
1471 break ;
1472 }
1473 /* Disable sound clock */
1474 pmac_call_feature(PMAC_FTR_SOUND_CHIP_ENABLE, awacs_node, 0, 0);
1475 /* According to Darwin, we do that after turning off the sound
1476 * chip clock. All this will have to be cleaned up once we properly
1477 * parse the OF sound-objects
1478 */
1479 if ((machine_is_compatible("PowerBook3,1") ||
1480 machine_is_compatible("PowerBook3,2")) && awacs) {
1481 awacs_reg[1] |= MASK_PAROUT0 | MASK_PAROUT1;
1482 awacs_write(MASK_ADDR1 | awacs_reg[1]);
1483 msleep(200);
1484 }
1485 break;
1486 case PBOOK_WAKE:
1487 /* Enable sound clock */
1488 pmac_call_feature(PMAC_FTR_SOUND_CHIP_ENABLE, awacs_node, 0, 1);
1489 if ((machine_is_compatible("PowerBook3,1") ||
1490 machine_is_compatible("PowerBook3,2")) && awacs) {
1491 msleep(100);
1492 awacs_reg[1] &= ~(MASK_PAROUT0 | MASK_PAROUT1);
1493 awacs_write(MASK_ADDR1 | awacs_reg[1]);
1494 msleep(300);
1495 } else
1496 msleep(1000);
1497 /* restore settings */
1498 switch (awacs_revision) {
1499 case AWACS_TUMBLER:
1500 case AWACS_SNAPPER:
1501 write_audio_gpio(gpio_headphone_mute, gpio_headphone_mute_pol);
1502 write_audio_gpio(gpio_amp_mute, gpio_amp_mute_pol);
1503 write_audio_gpio(gpio_audio_reset, gpio_audio_reset_pol);
1504 msleep(100);
1505 write_audio_gpio(gpio_audio_reset, !gpio_audio_reset_pol);
1506 msleep(150);
1507 tas_leave_sleep(); /* Stub for now */
1508 headphone_intr(0, NULL);
1509 break;
1510 case AWACS_DACA:
1511 msleep(10); /* Check this !!! */
1512 daca_leave_sleep();
1513 break ; /* dont know how yet */
1514 case AWACS_BURGUNDY:
1515 break ;
1516 case AWACS_SCREAMER:
1517 case AWACS_AWACS:
1518 default:
1519 load_awacs() ;
1520 break ;
1521 }
1522 /* Recalibrate chip */
1523 if (awacs_revision == AWACS_SCREAMER && awacs)
1524 awacs_recalibrate();
1525 /* Make sure dma is stopped */
1526 PMacSilence();
1527 if (awacs)
1528 enable_irq(awacs_irq);
1529 enable_irq(awacs_tx_irq);
1530 enable_irq(awacs_rx_irq);
1531 if (awacs) {
1532 /* OK, allow ints back again */
1533 out_le32(&awacs->control, MASK_IEPC
1534 | (awacs_rate_index << 8) | 0x11
1535 | (awacs_revision < AWACS_DACA ? MASK_IEE: 0));
1536 }
1537 if (macio_base && is_pbook_g3) {
1538 /* FIXME: should restore the setup we had...*/
1539 out_8(macio_base + 0x37, 3);
1540 } else if (is_pbook_3X00) {
1541 in_8(latch_base + 0x190);
1542 }
1543 /* Remove mute */
1544 if (awacs_revision == AWACS_SCREAMER ||
1545 awacs_revision == AWACS_AWACS) {
1546 awacs_reg[1] = awacs_reg1_save;
1547 awacs_write(MASK_ADDR1 | awacs_reg[1]);
1548 }
1549 awacs_sleeping = 0;
1550 /* Resume pending sounds. */
1551 /* we don't try to restart input... */
1552 spin_lock_irqsave(&dmasound.lock, flags);
1553 __PMacPlay();
1554 spin_unlock_irqrestore(&dmasound.lock, flags);
1555 UNLOCK();
1556 }
1557 }
1558 #endif /* CONFIG_PM */
1559
1560
1561 /* All the burgundy functions: */
1562
1563 /* Waits for busy flag to clear */
1564 static inline void
1565 awacs_burgundy_busy_wait(void)
1566 {
1567 int count = 50; /* > 2 samples at 44k1 */
1568 while ((in_le32(&awacs->codec_ctrl) & MASK_NEWECMD) && count--)
1569 udelay(1) ;
1570 }
1571
1572 static inline void
1573 awacs_burgundy_extend_wait(void)
1574 {
1575 int count = 50 ; /* > 2 samples at 44k1 */
1576 while ((!(in_le32(&awacs->codec_stat) & MASK_EXTEND)) && count--)
1577 udelay(1) ;
1578 count = 50;
1579 while ((in_le32(&awacs->codec_stat) & MASK_EXTEND) && count--)
1580 udelay(1);
1581 }
1582
1583 static void
1584 awacs_burgundy_wcw(unsigned addr, unsigned val)
1585 {
1586 out_le32(&awacs->codec_ctrl, addr + 0x200c00 + (val & 0xff));
1587 awacs_burgundy_busy_wait();
1588 out_le32(&awacs->codec_ctrl, addr + 0x200d00 +((val>>8) & 0xff));
1589 awacs_burgundy_busy_wait();
1590 out_le32(&awacs->codec_ctrl, addr + 0x200e00 +((val>>16) & 0xff));
1591 awacs_burgundy_busy_wait();
1592 out_le32(&awacs->codec_ctrl, addr + 0x200f00 +((val>>24) & 0xff));
1593 awacs_burgundy_busy_wait();
1594 }
1595
1596 static unsigned
1597 awacs_burgundy_rcw(unsigned addr)
1598 {
1599 unsigned val = 0;
1600 unsigned long flags;
1601
1602 /* should have timeouts here */
1603 spin_lock_irqsave(&dmasound.lock, flags);
1604
1605 out_le32(&awacs->codec_ctrl, addr + 0x100000);
1606 awacs_burgundy_busy_wait();
1607 awacs_burgundy_extend_wait();
1608 val += (in_le32(&awacs->codec_stat) >> 4) & 0xff;
1609
1610 out_le32(&awacs->codec_ctrl, addr + 0x100100);
1611 awacs_burgundy_busy_wait();
1612 awacs_burgundy_extend_wait();
1613 val += ((in_le32(&awacs->codec_stat)>>4) & 0xff) <<8;
1614
1615 out_le32(&awacs->codec_ctrl, addr + 0x100200);
1616 awacs_burgundy_busy_wait();
1617 awacs_burgundy_extend_wait();
1618 val += ((in_le32(&awacs->codec_stat)>>4) & 0xff) <<16;
1619
1620 out_le32(&awacs->codec_ctrl, addr + 0x100300);
1621 awacs_burgundy_busy_wait();
1622 awacs_burgundy_extend_wait();
1623 val += ((in_le32(&awacs->codec_stat)>>4) & 0xff) <<24;
1624
1625 spin_unlock_irqrestore(&dmasound.lock, flags);
1626
1627 return val;
1628 }
1629
1630
1631 static void
1632 awacs_burgundy_wcb(unsigned addr, unsigned val)
1633 {
1634 out_le32(&awacs->codec_ctrl, addr + 0x300000 + (val & 0xff));
1635 awacs_burgundy_busy_wait();
1636 }
1637
1638 static unsigned
1639 awacs_burgundy_rcb(unsigned addr)
1640 {
1641 unsigned val = 0;
1642 unsigned long flags;
1643
1644 /* should have timeouts here */
1645 spin_lock_irqsave(&dmasound.lock, flags);
1646
1647 out_le32(&awacs->codec_ctrl, addr + 0x100000);
1648 awacs_burgundy_busy_wait();
1649 awacs_burgundy_extend_wait();
1650 val += (in_le32(&awacs->codec_stat) >> 4) & 0xff;
1651
1652 spin_unlock_irqrestore(&dmasound.lock, flags);
1653
1654 return val;
1655 }
1656
1657 static int
1658 awacs_burgundy_check(void)
1659 {
1660 /* Checks to see the chip is alive and kicking */
1661 int error = in_le32(&awacs->codec_ctrl) & MASK_ERRCODE;
1662
1663 return error == 0xf0000;
1664 }
1665
1666 static int
1667 awacs_burgundy_init(void)
1668 {
1669 if (awacs_burgundy_check()) {
1670 printk(KERN_WARNING "dmasound_pmac: burgundy not working :-(\n");
1671 return 1;
1672 }
1673
1674 awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_OUTPUTENABLES,
1675 DEF_BURGUNDY_OUTPUTENABLES);
1676 awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES,
1677 DEF_BURGUNDY_MORE_OUTPUTENABLES);
1678 awacs_burgundy_wcw(MASK_ADDR_BURGUNDY_OUTPUTSELECTS,
1679 DEF_BURGUNDY_OUTPUTSELECTS);
1680
1681 awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_INPSEL21,
1682 DEF_BURGUNDY_INPSEL21);
1683 awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_INPSEL3,
1684 DEF_BURGUNDY_INPSEL3);
1685 awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_GAINCD,
1686 DEF_BURGUNDY_GAINCD);
1687 awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_GAINLINE,
1688 DEF_BURGUNDY_GAINLINE);
1689 awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_GAINMIC,
1690 DEF_BURGUNDY_GAINMIC);
1691 awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_GAINMODEM,
1692 DEF_BURGUNDY_GAINMODEM);
1693
1694 awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_ATTENSPEAKER,
1695 DEF_BURGUNDY_ATTENSPEAKER);
1696 awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_ATTENLINEOUT,
1697 DEF_BURGUNDY_ATTENLINEOUT);
1698 awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_ATTENHP,
1699 DEF_BURGUNDY_ATTENHP);
1700
1701 awacs_burgundy_wcw(MASK_ADDR_BURGUNDY_MASTER_VOLUME,
1702 DEF_BURGUNDY_MASTER_VOLUME);
1703 awacs_burgundy_wcw(MASK_ADDR_BURGUNDY_VOLCD,
1704 DEF_BURGUNDY_VOLCD);
1705 awacs_burgundy_wcw(MASK_ADDR_BURGUNDY_VOLLINE,
1706 DEF_BURGUNDY_VOLLINE);
1707 awacs_burgundy_wcw(MASK_ADDR_BURGUNDY_VOLMIC,
1708 DEF_BURGUNDY_VOLMIC);
1709 return 0;
1710 }
1711
1712 static void
1713 awacs_burgundy_write_volume(unsigned address, int volume)
1714 {
1715 int hardvolume,lvolume,rvolume;
1716
1717 lvolume = (volume & 0xff) ? (volume & 0xff) + 155 : 0;
1718 rvolume = ((volume >>8)&0xff) ? ((volume >> 8)&0xff ) + 155 : 0;
1719
1720 hardvolume = lvolume + (rvolume << 16);
1721
1722 awacs_burgundy_wcw(address, hardvolume);
1723 }
1724
1725 static int
1726 awacs_burgundy_read_volume(unsigned address)
1727 {
1728 int softvolume,wvolume;
1729
1730 wvolume = awacs_burgundy_rcw(address);
1731
1732 softvolume = (wvolume & 0xff) - 155;
1733 softvolume += (((wvolume >> 16) & 0xff) - 155)<<8;
1734
1735 return softvolume > 0 ? softvolume : 0;
1736 }
1737
1738 static int
1739 awacs_burgundy_read_mvolume(unsigned address)
1740 {
1741 int lvolume,rvolume,wvolume;
1742
1743 wvolume = awacs_burgundy_rcw(address);
1744
1745 wvolume &= 0xffff;
1746
1747 rvolume = (wvolume & 0xff) - 155;
1748 lvolume = ((wvolume & 0xff00)>>8) - 155;
1749
1750 return lvolume + (rvolume << 8);
1751 }
1752
1753 static void
1754 awacs_burgundy_write_mvolume(unsigned address, int volume)
1755 {
1756 int lvolume,rvolume,hardvolume;
1757
1758 lvolume = (volume &0xff) ? (volume & 0xff) + 155 :0;
1759 rvolume = ((volume >>8) & 0xff) ? (volume >> 8) + 155 :0;
1760
1761 hardvolume = lvolume + (rvolume << 8);
1762 hardvolume += (hardvolume << 16);
1763
1764 awacs_burgundy_wcw(address, hardvolume);
1765 }
1766
1767 /* End burgundy functions */
1768
1769 /* Set up output volumes on machines with the 'perch/whisper' extension card.
1770 * this has an SGS i2c chip (7433) which is accessed using the cuda.
1771 *
1772 * TODO: split this out and make use of the other parts of the SGS chip to
1773 * do Bass, Treble etc.
1774 */
1775
1776 static void
1777 awacs_enable_amp(int spkr_vol)
1778 {
1779 #ifdef CONFIG_ADB_CUDA
1780 struct adb_request req;
1781
1782 if (sys_ctrler != SYS_CTRLER_CUDA)
1783 return;
1784
1785 /* turn on headphones */
1786 cuda_request(&req, NULL, 5, CUDA_PACKET, CUDA_GET_SET_IIC,
1787 0x8a, 4, 0);
1788 while (!req.complete) cuda_poll();
1789 cuda_request(&req, NULL, 5, CUDA_PACKET, CUDA_GET_SET_IIC,
1790 0x8a, 6, 0);
1791 while (!req.complete) cuda_poll();
1792
1793 /* turn on speaker */
1794 cuda_request(&req, NULL, 5, CUDA_PACKET, CUDA_GET_SET_IIC,
1795 0x8a, 3, (100 - (spkr_vol & 0xff)) * 32 / 100);
1796 while (!req.complete) cuda_poll();
1797 cuda_request(&req, NULL, 5, CUDA_PACKET, CUDA_GET_SET_IIC,
1798 0x8a, 5, (100 - ((spkr_vol >> 8) & 0xff)) * 32 / 100);
1799 while (!req.complete) cuda_poll();
1800
1801 cuda_request(&req, NULL, 5, CUDA_PACKET,
1802 CUDA_GET_SET_IIC, 0x8a, 1, 0x29);
1803 while (!req.complete) cuda_poll();
1804 #endif /* CONFIG_ADB_CUDA */
1805 }
1806
1807
1808 /*** Mid level stuff *********************************************************/
1809
1810
1811 /*
1812 * /dev/mixer abstraction
1813 */
1814
1815 static void do_line_lev(int data)
1816 {
1817 line_lev = data ;
1818 awacs_reg[0] &= ~MASK_MUX_AUDIN;
1819 if ((data & 0xff) >= 50)
1820 awacs_reg[0] |= MASK_MUX_AUDIN;
1821 awacs_write(MASK_ADDR0 | awacs_reg[0]);
1822 }
1823
1824 static void do_ip_gain(int data)
1825 {
1826 ip_gain = data ;
1827 data &= 0xff;
1828 awacs_reg[0] &= ~MASK_GAINLINE;
1829 if (awacs_revision == AWACS_SCREAMER) {
1830 awacs_reg[6] &= ~MASK_MIC_BOOST ;
1831 if (data >= 33) {
1832 awacs_reg[0] |= MASK_GAINLINE;
1833 if( data >= 66)
1834 awacs_reg[6] |= MASK_MIC_BOOST ;
1835 }
1836 awacs_write(MASK_ADDR6 | awacs_reg[6]) ;
1837 } else {
1838 if (data >= 50)
1839 awacs_reg[0] |= MASK_GAINLINE;
1840 }
1841 awacs_write(MASK_ADDR0 | awacs_reg[0]);
1842 }
1843
1844 static void do_mic_lev(int data)
1845 {
1846 mic_lev = data ;
1847 data &= 0xff;
1848 awacs_reg[0] &= ~MASK_MUX_MIC;
1849 if (data >= 50)
1850 awacs_reg[0] |= MASK_MUX_MIC;
1851 awacs_write(MASK_ADDR0 | awacs_reg[0]);
1852 }
1853
1854 static void do_cd_lev(int data)
1855 {
1856 cd_lev = data ;
1857 awacs_reg[0] &= ~MASK_MUX_CD;
1858 if ((data & 0xff) >= 50)
1859 awacs_reg[0] |= MASK_MUX_CD;
1860 awacs_write(MASK_ADDR0 | awacs_reg[0]);
1861 }
1862
1863 static void do_rec_lev(int data)
1864 {
1865 int left, right ;
1866 rec_lev = data ;
1867 /* need to fudge this to use the volume setter routine */
1868 left = 100 - (data & 0xff) ; if( left < 0 ) left = 0 ;
1869 right = 100 - ((data >> 8) & 0xff) ; if( right < 0 ) right = 0 ;
1870 left |= (right << 8 );
1871 left = awacs_volume_setter(left, 0, 0, 4);
1872 }
1873
1874 static void do_passthru_vol(int data)
1875 {
1876 passthru_vol = data ;
1877 awacs_reg[1] &= ~MASK_LOOPTHRU;
1878 if (awacs_revision == AWACS_SCREAMER) {
1879 if( data ) { /* switch it on for non-zero */
1880 awacs_reg[1] |= MASK_LOOPTHRU;
1881 awacs_write(MASK_ADDR1 | awacs_reg[1]);
1882 }
1883 data = awacs_volume_setter(data, 5, 0, 6) ;
1884 } else {
1885 if ((data & 0xff) >= 50)
1886 awacs_reg[1] |= MASK_LOOPTHRU;
1887 awacs_write(MASK_ADDR1 | awacs_reg[1]);
1888 data = (awacs_reg[1] & MASK_LOOPTHRU)? 100: 0;
1889 }
1890 }
1891
1892 static int awacs_mixer_ioctl(u_int cmd, u_long arg)
1893 {
1894 int data;
1895 int rc;
1896
1897 switch (cmd) {
1898 case SOUND_MIXER_READ_CAPS:
1899 /* say we will allow multiple inputs? prob. wrong
1900 so I'm switching it to single */
1901 return IOCTL_OUT(arg, 1);
1902 case SOUND_MIXER_READ_DEVMASK:
1903 data = SOUND_MASK_VOLUME | SOUND_MASK_SPEAKER
1904 | SOUND_MASK_LINE | SOUND_MASK_MIC | SOUND_MASK_CD
1905 | SOUND_MASK_IGAIN | SOUND_MASK_RECLEV
1906 | SOUND_MASK_ALTPCM
1907 | SOUND_MASK_MONITOR;
1908 rc = IOCTL_OUT(arg, data);
1909 break;
1910 case SOUND_MIXER_READ_RECMASK:
1911 data = SOUND_MASK_LINE | SOUND_MASK_MIC | SOUND_MASK_CD;
1912 rc = IOCTL_OUT(arg, data);
1913 break;
1914 case SOUND_MIXER_READ_RECSRC:
1915 data = 0;
1916 if (awacs_reg[0] & MASK_MUX_AUDIN)
1917 data |= SOUND_MASK_LINE;
1918 if (awacs_reg[0] & MASK_MUX_MIC)
1919 data |= SOUND_MASK_MIC;
1920 if (awacs_reg[0] & MASK_MUX_CD)
1921 data |= SOUND_MASK_CD;
1922 rc = IOCTL_OUT(arg, data);
1923 break;
1924 case SOUND_MIXER_WRITE_RECSRC:
1925 IOCTL_IN(arg, data);
1926 data &= (SOUND_MASK_LINE | SOUND_MASK_MIC | SOUND_MASK_CD);
1927 awacs_reg[0] &= ~(MASK_MUX_CD | MASK_MUX_MIC
1928 | MASK_MUX_AUDIN);
1929 if (data & SOUND_MASK_LINE)
1930 awacs_reg[0] |= MASK_MUX_AUDIN;
1931 if (data & SOUND_MASK_MIC)
1932 awacs_reg[0] |= MASK_MUX_MIC;
1933 if (data & SOUND_MASK_CD)
1934 awacs_reg[0] |= MASK_MUX_CD;
1935 awacs_write(awacs_reg[0] | MASK_ADDR0);
1936 rc = IOCTL_OUT(arg, data);
1937 break;
1938 case SOUND_MIXER_READ_STEREODEVS:
1939 data = SOUND_MASK_VOLUME | SOUND_MASK_SPEAKER| SOUND_MASK_RECLEV ;
1940 if (awacs_revision == AWACS_SCREAMER)
1941 data |= SOUND_MASK_MONITOR ;
1942 rc = IOCTL_OUT(arg, data);
1943 break;
1944 case SOUND_MIXER_WRITE_VOLUME:
1945 IOCTL_IN(arg, data);
1946 line_vol = data ;
1947 awacs_volume_setter(data, 2, 0, 6);
1948 /* fall through */
1949 case SOUND_MIXER_READ_VOLUME:
1950 rc = IOCTL_OUT(arg, line_vol);
1951 break;
1952 case SOUND_MIXER_WRITE_SPEAKER:
1953 IOCTL_IN(arg, data);
1954 spk_vol = data ;
1955 if (has_perch)
1956 awacs_enable_amp(data);
1957 else
1958 (void)awacs_volume_setter(data, 4, MASK_CMUTE, 6);
1959 /* fall though */
1960 case SOUND_MIXER_READ_SPEAKER:
1961 rc = IOCTL_OUT(arg, spk_vol);
1962 break;
1963 case SOUND_MIXER_WRITE_ALTPCM: /* really bell volume */
1964 IOCTL_IN(arg, data);
1965 beep_vol = data & 0xff;
1966 /* fall through */
1967 case SOUND_MIXER_READ_ALTPCM:
1968 rc = IOCTL_OUT(arg, beep_vol);
1969 break;
1970 case SOUND_MIXER_WRITE_LINE:
1971 IOCTL_IN(arg, data);
1972 do_line_lev(data) ;
1973 /* fall through */
1974 case SOUND_MIXER_READ_LINE:
1975 rc = IOCTL_OUT(arg, line_lev);
1976 break;
1977 case SOUND_MIXER_WRITE_IGAIN:
1978 IOCTL_IN(arg, data);
1979 do_ip_gain(data) ;
1980 /* fall through */
1981 case SOUND_MIXER_READ_IGAIN:
1982 rc = IOCTL_OUT(arg, ip_gain);
1983 break;
1984 case SOUND_MIXER_WRITE_MIC:
1985 IOCTL_IN(arg, data);
1986 do_mic_lev(data);
1987 /* fall through */
1988 case SOUND_MIXER_READ_MIC:
1989 rc = IOCTL_OUT(arg, mic_lev);
1990 break;
1991 case SOUND_MIXER_WRITE_CD:
1992 IOCTL_IN(arg, data);
1993 do_cd_lev(data);
1994 /* fall through */
1995 case SOUND_MIXER_READ_CD:
1996 rc = IOCTL_OUT(arg, cd_lev);
1997 break;
1998 case SOUND_MIXER_WRITE_RECLEV:
1999 IOCTL_IN(arg, data);
2000 do_rec_lev(data) ;
2001 /* fall through */
2002 case SOUND_MIXER_READ_RECLEV:
2003 rc = IOCTL_OUT(arg, rec_lev);
2004 break;
2005 case MIXER_WRITE(SOUND_MIXER_MONITOR):
2006 IOCTL_IN(arg, data);
2007 do_passthru_vol(data) ;
2008 /* fall through */
2009 case MIXER_READ(SOUND_MIXER_MONITOR):
2010 rc = IOCTL_OUT(arg, passthru_vol);
2011 break;
2012 default:
2013 rc = -EINVAL;
2014 }
2015
2016 return rc;
2017 }
2018
2019 static void awacs_mixer_init(void)
2020 {
2021 awacs_volume_setter(line_vol, 2, 0, 6);
2022 if (has_perch)
2023 awacs_enable_amp(spk_vol);
2024 else
2025 (void)awacs_volume_setter(spk_vol, 4, MASK_CMUTE, 6);
2026 do_line_lev(line_lev) ;
2027 do_ip_gain(ip_gain) ;
2028 do_mic_lev(mic_lev) ;
2029 do_cd_lev(cd_lev) ;
2030 do_rec_lev(rec_lev) ;
2031 do_passthru_vol(passthru_vol) ;
2032 }
2033
2034 static int burgundy_mixer_ioctl(u_int cmd, u_long arg)
2035 {
2036 int data;
2037 int rc;
2038
2039 /* We are, we are, we are... Burgundy or better */
2040 switch(cmd) {
2041 case SOUND_MIXER_READ_DEVMASK:
2042 data = SOUND_MASK_VOLUME | SOUND_MASK_CD |
2043 SOUND_MASK_LINE | SOUND_MASK_MIC |
2044 SOUND_MASK_SPEAKER | SOUND_MASK_ALTPCM;
2045 rc = IOCTL_OUT(arg, data);
2046 break;
2047 case SOUND_MIXER_READ_RECMASK:
2048 data = SOUND_MASK_LINE | SOUND_MASK_MIC
2049 | SOUND_MASK_CD;
2050 rc = IOCTL_OUT(arg, data);
2051 break;
2052 case SOUND_MIXER_READ_RECSRC:
2053 data = 0;
2054 if (awacs_reg[0] & MASK_MUX_AUDIN)
2055 data |= SOUND_MASK_LINE;
2056 if (awacs_reg[0] & MASK_MUX_MIC)
2057 data |= SOUND_MASK_MIC;
2058 if (awacs_reg[0] & MASK_MUX_CD)
2059 data |= SOUND_MASK_CD;
2060 rc = IOCTL_OUT(arg, data);
2061 break;
2062 case SOUND_MIXER_WRITE_RECSRC:
2063 IOCTL_IN(arg, data);
2064 data &= (SOUND_MASK_LINE
2065 | SOUND_MASK_MIC | SOUND_MASK_CD);
2066 awacs_reg[0] &= ~(MASK_MUX_CD | MASK_MUX_MIC
2067 | MASK_MUX_AUDIN);
2068 if (data & SOUND_MASK_LINE)
2069 awacs_reg[0] |= MASK_MUX_AUDIN;
2070 if (data & SOUND_MASK_MIC)
2071 awacs_reg[0] |= MASK_MUX_MIC;
2072 if (data & SOUND_MASK_CD)
2073 awacs_reg[0] |= MASK_MUX_CD;
2074 awacs_write(awacs_reg[0] | MASK_ADDR0);
2075 rc = IOCTL_OUT(arg, data);
2076 break;
2077 case SOUND_MIXER_READ_STEREODEVS:
2078 data = SOUND_MASK_VOLUME | SOUND_MASK_SPEAKER
2079 | SOUND_MASK_RECLEV | SOUND_MASK_CD
2080 | SOUND_MASK_LINE;
2081 rc = IOCTL_OUT(arg, data);
2082 break;
2083 case SOUND_MIXER_READ_CAPS:
2084 rc = IOCTL_OUT(arg, 0);
2085 break;
2086 case SOUND_MIXER_WRITE_VOLUME:
2087 IOCTL_IN(arg, data);
2088 awacs_burgundy_write_mvolume(MASK_ADDR_BURGUNDY_MASTER_VOLUME, data);
2089 /* Fall through */
2090 case SOUND_MIXER_READ_VOLUME:
2091 rc = IOCTL_OUT(arg, awacs_burgundy_read_mvolume(MASK_ADDR_BURGUNDY_MASTER_VOLUME));
2092 break;
2093 case SOUND_MIXER_WRITE_SPEAKER:
2094 IOCTL_IN(arg, data);
2095 if (!(data & 0xff)) {
2096 /* Mute the left speaker */
2097 awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES,
2098 awacs_burgundy_rcb(MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES) & ~0x2);
2099 } else {
2100 /* Unmute the left speaker */
2101 awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES,
2102 awacs_burgundy_rcb(MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES) | 0x2);
2103 }
2104 if (!(data & 0xff00)) {
2105 /* Mute the right speaker */
2106 awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES,
2107 awacs_burgundy_rcb(MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES) & ~0x4);
2108 } else {
2109 /* Unmute the right speaker */
2110 awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES,
2111 awacs_burgundy_rcb(MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES) | 0x4);
2112 }
2113
2114 data = (((data&0xff)*16)/100 > 0xf ? 0xf :
2115 (((data&0xff)*16)/100)) +
2116 ((((data>>8)*16)/100 > 0xf ? 0xf :
2117 ((((data>>8)*16)/100)))<<4);
2118
2119 awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_ATTENSPEAKER, ~data);
2120 /* Fall through */
2121 case SOUND_MIXER_READ_SPEAKER:
2122 data = awacs_burgundy_rcb(MASK_ADDR_BURGUNDY_ATTENSPEAKER);
2123 data = (((data & 0xf)*100)/16) + ((((data>>4)*100)/16)<<8);
2124 rc = IOCTL_OUT(arg, (~data) & 0x0000ffff);
2125 break;
2126 case SOUND_MIXER_WRITE_ALTPCM: /* really bell volume */
2127 IOCTL_IN(arg, data);
2128 beep_vol = data & 0xff;
2129 /* fall through */
2130 case SOUND_MIXER_READ_ALTPCM:
2131 rc = IOCTL_OUT(arg, beep_vol);
2132 break;
2133 case SOUND_MIXER_WRITE_LINE:
2134 IOCTL_IN(arg, data);
2135 awacs_burgundy_write_volume(MASK_ADDR_BURGUNDY_VOLLINE, data);
2136
2137 /* fall through */
2138 case SOUND_MIXER_READ_LINE:
2139 data = awacs_burgundy_read_volume(MASK_ADDR_BURGUNDY_VOLLINE);
2140 rc = IOCTL_OUT(arg, data);
2141 break;
2142 case SOUND_MIXER_WRITE_MIC:
2143 IOCTL_IN(arg, data);
2144 /* Mic is mono device */
2145 data = (data << 8) + (data << 24);
2146 awacs_burgundy_write_volume(MASK_ADDR_BURGUNDY_VOLMIC, data);
2147 /* fall through */
2148 case SOUND_MIXER_READ_MIC:
2149 data = awacs_burgundy_read_volume(MASK_ADDR_BURGUNDY_VOLMIC);
2150 data <<= 24;
2151 rc = IOCTL_OUT(arg, data);
2152 break;
2153 case SOUND_MIXER_WRITE_CD:
2154 IOCTL_IN(arg, data);
2155 awacs_burgundy_write_volume(MASK_ADDR_BURGUNDY_VOLCD, data);
2156 /* fall through */
2157 case SOUND_MIXER_READ_CD:
2158 data = awacs_burgundy_read_volume(MASK_ADDR_BURGUNDY_VOLCD);
2159 rc = IOCTL_OUT(arg, data);
2160 break;
2161 case SOUND_MIXER_WRITE_RECLEV:
2162 IOCTL_IN(arg, data);
2163 data = awacs_volume_setter(data, 0, 0, 4);
2164 rc = IOCTL_OUT(arg, data);
2165 break;
2166 case SOUND_MIXER_READ_RECLEV:
2167 data = awacs_get_volume(awacs_reg[0], 4);
2168 rc = IOCTL_OUT(arg, data);
2169 break;
2170 case SOUND_MIXER_OUTMASK:
2171 case SOUND_MIXER_OUTSRC:
2172 default:
2173 rc = -EINVAL;
2174 }
2175
2176 return rc;
2177 }
2178
2179 static int daca_mixer_ioctl(u_int cmd, u_long arg)
2180 {
2181 int data;
2182 int rc;
2183
2184 /* And the DACA's no genius either! */
2185
2186 switch(cmd) {
2187 case SOUND_MIXER_READ_DEVMASK:
2188 data = SOUND_MASK_VOLUME;
2189 rc = IOCTL_OUT(arg, data);
2190 break;
2191 case SOUND_MIXER_READ_RECMASK:
2192 data = 0;
2193 rc = IOCTL_OUT(arg, data);
2194 break;
2195 case SOUND_MIXER_READ_RECSRC:
2196 data = 0;
2197 rc = IOCTL_OUT(arg, data);
2198 break;
2199 case SOUND_MIXER_WRITE_RECSRC:
2200 IOCTL_IN(arg, data);
2201 data =0;
2202 rc = IOCTL_OUT(arg, data);
2203 break;
2204 case SOUND_MIXER_READ_STEREODEVS:
2205 data = SOUND_MASK_VOLUME;
2206 rc = IOCTL_OUT(arg, data);
2207 break;
2208 case SOUND_MIXER_READ_CAPS:
2209 rc = IOCTL_OUT(arg, 0);
2210 break;
2211 case SOUND_MIXER_WRITE_VOLUME:
2212 IOCTL_IN(arg, data);
2213 daca_set_volume(data, data);
2214 /* Fall through */
2215 case SOUND_MIXER_READ_VOLUME:
2216 daca_get_volume(& data, &data);
2217 rc = IOCTL_OUT(arg, data);
2218 break;
2219 case SOUND_MIXER_OUTMASK:
2220 case SOUND_MIXER_OUTSRC:
2221 default:
2222 rc = -EINVAL;
2223 }
2224 return rc;
2225 }
2226
2227 static int PMacMixerIoctl(u_int cmd, u_long arg)
2228 {
2229 int rc;
2230
2231 /* Different IOCTLS for burgundy and, eventually, DACA & Tumbler */
2232
2233 TRY_LOCK();
2234
2235 switch (awacs_revision){
2236 case AWACS_BURGUNDY:
2237 rc = burgundy_mixer_ioctl(cmd, arg);
2238 break ;
2239 case AWACS_DACA:
2240 rc = daca_mixer_ioctl(cmd, arg);
2241 break;
2242 case AWACS_TUMBLER:
2243 case AWACS_SNAPPER:
2244 rc = tas_mixer_ioctl(cmd, arg);
2245 break ;
2246 default: /* ;-)) */
2247 rc = awacs_mixer_ioctl(cmd, arg);
2248 }
2249
2250 UNLOCK();
2251
2252 return rc;
2253 }
2254
2255 static void PMacMixerInit(void)
2256 {
2257 switch (awacs_revision) {
2258 case AWACS_TUMBLER:
2259 printk("AE-Init tumbler mixer\n");
2260 break ;
2261 case AWACS_SNAPPER:
2262 printk("AE-Init snapper mixer\n");
2263 break ;
2264 case AWACS_DACA:
2265 case AWACS_BURGUNDY:
2266 break ; /* don't know yet */
2267 case AWACS_AWACS:
2268 case AWACS_SCREAMER:
2269 default:
2270 awacs_mixer_init() ;
2271 break ;
2272 }
2273 }
2274
2275 /* Write/Read sq setup functions:
2276 Check to see if we have enough (or any) dbdma cmd buffers for the
2277 user's fragment settings. If not, allocate some. If this fails we will
2278 point at the beep buffer - as an emergency provision - to stop dma tromping
2279 on some random bit of memory (if someone lets it go anyway).
2280 The command buffers are then set up to point to the fragment buffers
2281 (allocated elsewhere). We need n+1 commands the last of which holds
2282 a NOP + loop to start.
2283 */
2284
2285 static int PMacWriteSqSetup(void)
2286 {
2287 int i, count = 600 ;
2288 volatile struct dbdma_cmd *cp;
2289
2290 LOCK();
2291
2292 /* stop the controller from doing any output - if it isn't already.
2293 it _should_ be before this is called anyway */
2294
2295 out_le32(&awacs_txdma->control, (RUN|PAUSE|FLUSH|WAKE) << 16);
2296 while ((in_le32(&awacs_txdma->status) & RUN) && count--)
2297 udelay(1);
2298 #ifdef DEBUG_DMASOUND
2299 if (count <= 0)
2300 printk("dmasound_pmac: write sq setup: timeout waiting for dma to stop\n");
2301 #endif
2302
2303 if ((write_sq.max_count + 1) > number_of_tx_cmd_buffers) {
2304 kfree(awacs_tx_cmd_space);
2305 number_of_tx_cmd_buffers = 0;
2306
2307 /* we need nbufs + 1 (for the loop) and we should request + 1
2308 again because the DBDMA_ALIGN might pull the start up by up
2309 to sizeof(struct dbdma_cmd) - 4.
2310 */
2311
2312 awacs_tx_cmd_space = kmalloc
2313 ((write_sq.max_count + 1 + 1) * sizeof(struct dbdma_cmd),
2314 GFP_KERNEL);
2315 if (awacs_tx_cmd_space == NULL) {
2316 /* don't leave it dangling - nasty but better than a
2317 random address */
2318 out_le32(&awacs_txdma->cmdptr, virt_to_bus(beep_dbdma_cmd));
2319 printk(KERN_ERR
2320 "dmasound_pmac: can't allocate dbdma cmd buffers"
2321 ", driver disabled\n");
2322 UNLOCK();
2323 return -ENOMEM;
2324 }
2325 awacs_tx_cmds = (volatile struct dbdma_cmd *)
2326 DBDMA_ALIGN(awacs_tx_cmd_space);
2327 number_of_tx_cmd_buffers = write_sq.max_count + 1;
2328 }
2329
2330 cp = awacs_tx_cmds;
2331 memset((void *)cp, 0, (write_sq.max_count+1) * sizeof(struct dbdma_cmd));
2332 for (i = 0; i < write_sq.max_count; ++i, ++cp) {
2333 st_le32(&cp->phy_addr, virt_to_bus(write_sq.buffers[i]));
2334 }
2335 st_le16(&cp->command, DBDMA_NOP + BR_ALWAYS);
2336 st_le32(&cp->cmd_dep, virt_to_bus(awacs_tx_cmds));
2337 /* point the controller at the command stack - ready to go */
2338 out_le32(&awacs_txdma->cmdptr, virt_to_bus(awacs_tx_cmds));
2339 UNLOCK();
2340 return 0;
2341 }
2342
2343 static int PMacReadSqSetup(void)
2344 {
2345 int i, count = 600;
2346 volatile struct dbdma_cmd *cp;
2347
2348 LOCK();
2349
2350 /* stop the controller from doing any input - if it isn't already.
2351 it _should_ be before this is called anyway */
2352
2353 out_le32(&awacs_rxdma->control, (RUN|PAUSE|FLUSH|WAKE) << 16);
2354 while ((in_le32(&awacs_rxdma->status) & RUN) && count--)
2355 udelay(1);
2356 #ifdef DEBUG_DMASOUND
2357 if (count <= 0)
2358 printk("dmasound_pmac: read sq setup: timeout waiting for dma to stop\n");
2359 #endif
2360
2361 if ((read_sq.max_count+1) > number_of_rx_cmd_buffers ) {
2362 kfree(awacs_rx_cmd_space);
2363 number_of_rx_cmd_buffers = 0;
2364
2365 /* we need nbufs + 1 (for the loop) and we should request + 1 again
2366 because the DBDMA_ALIGN might pull the start up by up to
2367 sizeof(struct dbdma_cmd) - 4 (assuming kmalloc aligns 32 bits).
2368 */
2369
2370 awacs_rx_cmd_space = kmalloc
2371 ((read_sq.max_count + 1 + 1) * sizeof(struct dbdma_cmd),
2372 GFP_KERNEL);
2373 if (awacs_rx_cmd_space == NULL) {
2374 /* don't leave it dangling - nasty but better than a
2375 random address */
2376 out_le32(&awacs_rxdma->cmdptr, virt_to_bus(beep_dbdma_cmd));
2377 printk(KERN_ERR
2378 "dmasound_pmac: can't allocate dbdma cmd buffers"
2379 ", driver disabled\n");
2380 UNLOCK();
2381 return -ENOMEM;
2382 }
2383 awacs_rx_cmds = (volatile struct dbdma_cmd *)
2384 DBDMA_ALIGN(awacs_rx_cmd_space);
2385 number_of_rx_cmd_buffers = read_sq.max_count + 1 ;
2386 }
2387 cp = awacs_rx_cmds;
2388 memset((void *)cp, 0, (read_sq.max_count+1) * sizeof(struct dbdma_cmd));
2389
2390 /* Set dma buffers up in a loop */
2391 for (i = 0; i < read_sq.max_count; i++,cp++) {
2392 st_le32(&cp->phy_addr, virt_to_bus(read_sq.buffers[i]));
2393 st_le16(&cp->command, INPUT_MORE + INTR_ALWAYS);
2394 st_le16(&cp->req_count, read_sq.block_size);
2395 st_le16(&cp->xfer_status, 0);
2396 }
2397
2398 /* The next two lines make the thing loop around.
2399 */
2400 st_le16(&cp->command, DBDMA_NOP + BR_ALWAYS);
2401 st_le32(&cp->cmd_dep, virt_to_bus(awacs_rx_cmds));
2402 /* point the controller at the command stack - ready to go */
2403 out_le32(&awacs_rxdma->cmdptr, virt_to_bus(awacs_rx_cmds));
2404
2405 UNLOCK();
2406 return 0;
2407 }
2408
2409 /* TODO: this needs work to guarantee that when it returns DMA has stopped
2410 but in a more elegant way than is done here....
2411 */
2412
2413 static void PMacAbortRead(void)
2414 {
2415 int i;
2416 volatile struct dbdma_cmd *cp;
2417
2418 LOCK();
2419 /* give it a chance to update the output and provide the IRQ
2420 that is expected.
2421 */
2422
2423 out_le32(&awacs_rxdma->control, ((FLUSH) << 16) + FLUSH );
2424
2425 cp = awacs_rx_cmds;
2426 for (i = 0; i < read_sq.max_count; i++,cp++)
2427 st_le16(&cp->command, DBDMA_STOP);
2428 /*
2429 * We should probably wait for the thing to stop before we
2430 * release the memory.
2431 */
2432
2433 msleep(100) ; /* give it a (small) chance to act */
2434
2435 /* apply the sledgehammer approach - just stop it now */
2436
2437 out_le32(&awacs_rxdma->control, (RUN|PAUSE|FLUSH|WAKE) << 16);
2438 UNLOCK();
2439 }
2440
2441 extern char *get_afmt_string(int);
2442 static int PMacStateInfo(char *b, size_t sp)
2443 {
2444 int i, len = 0;
2445 len = sprintf(b,"HW rates: ");
2446 switch (awacs_revision){
2447 case AWACS_DACA:
2448 case AWACS_BURGUNDY:
2449 len += sprintf(b,"44100 ") ;
2450 break ;
2451 case AWACS_TUMBLER:
2452 case AWACS_SNAPPER:
2453 for (i=0; i<1; i++){
2454 if (tas_freqs_ok[i])
2455 len += sprintf(b+len,"%d ", tas_freqs[i]) ;
2456 }
2457 break ;
2458 case AWACS_AWACS:
2459 case AWACS_SCREAMER:
2460 default:
2461 for (i=0; i<8; i++){
2462 if (awacs_freqs_ok[i])
2463 len += sprintf(b+len,"%d ", awacs_freqs[i]) ;
2464 }
2465 break ;
2466 }
2467 len += sprintf(b+len,"s/sec\n") ;
2468 if (len < sp) {
2469 len += sprintf(b+len,"HW AFMTS: ");
2470 i = AFMT_U16_BE ;
2471 while (i) {
2472 if (i & dmasound.mach.hardware_afmts)
2473 len += sprintf(b+len,"%s ",
2474 get_afmt_string(i & dmasound.mach.hardware_afmts));
2475 i >>= 1 ;
2476 }
2477 len += sprintf(b+len,"\n") ;
2478 }
2479 return len ;
2480 }
2481
2482 /*** Machine definitions *****************************************************/
2483
2484 static SETTINGS def_hard = {
2485 .format = AFMT_S16_BE,
2486 .stereo = 1,
2487 .size = 16,
2488 .speed = 44100
2489 } ;
2490
2491 static SETTINGS def_soft = {
2492 .format = AFMT_S16_BE,
2493 .stereo = 1,
2494 .size = 16,
2495 .speed = 44100
2496 } ;
2497
2498 static MACHINE machPMac = {
2499 .name = awacs_name,
2500 .name2 = "PowerMac Built-in Sound",
2501 .owner = THIS_MODULE,
2502 .dma_alloc = PMacAlloc,
2503 .dma_free = PMacFree,
2504 .irqinit = PMacIrqInit,
2505 #ifdef MODULE
2506 .irqcleanup = PMacIrqCleanup,
2507 #endif /* MODULE */
2508 .init = PMacInit,
2509 .silence = PMacSilence,
2510 .setFormat = PMacSetFormat,
2511 .setVolume = PMacSetVolume,
2512 .play = PMacPlay,
2513 .record = NULL, /* default to no record */
2514 .mixer_init = PMacMixerInit,
2515 .mixer_ioctl = PMacMixerIoctl,
2516 .write_sq_setup = PMacWriteSqSetup,
2517 .read_sq_setup = PMacReadSqSetup,
2518 .state_info = PMacStateInfo,
2519 .abort_read = PMacAbortRead,
2520 .min_dsp_speed = 7350,
2521 .max_dsp_speed = 44100,
2522 .version = ((DMASOUND_AWACS_REVISION<<8) + DMASOUND_AWACS_EDITION)
2523 };
2524
2525
2526 /*** Config & Setup **********************************************************/
2527
2528 /* Check for pmac models that we care about in terms of special actions.
2529 */
2530
2531 void __init
2532 set_model(void)
2533 {
2534 /* portables/lap-tops */
2535
2536 if (machine_is_compatible("AAPL,3400/2400") ||
2537 machine_is_compatible("AAPL,3500")) {
2538 is_pbook_3X00 = 1 ;
2539 }
2540 if (machine_is_compatible("PowerBook1,1") || /* lombard */
2541 machine_is_compatible("AAPL,PowerBook1998")){ /* wallstreet */
2542 is_pbook_g3 = 1 ;
2543 return ;
2544 }
2545 }
2546
2547 /* Get the OF node that tells us about the registers, interrupts etc. to use
2548 for sound IO.
2549
2550 On most machines the sound IO OF node is the 'davbus' node. On newer pmacs
2551 with DACA (& Tumbler) the node to use is i2s-a. On much older machines i.e.
2552 before 9500 there is no davbus node and we have to use the 'awacs' property.
2553
2554 In the latter case we signal this by setting the codec value - so that the
2555 code that looks for chip properties knows how to go about it.
2556 */
2557
2558 static struct device_node* __init
2559 get_snd_io_node(void)
2560 {
2561 struct device_node *np;
2562
2563 /* set up awacs_node for early OF which doesn't have a full set of
2564 * properties on davbus
2565 */
2566 awacs_node = of_find_node_by_name(NULL, "awacs");
2567 if (awacs_node)
2568 awacs_revision = AWACS_AWACS;
2569
2570 /* powermac models after 9500 (other than those which use DACA or
2571 * Tumbler) have a node called "davbus".
2572 */
2573 np = of_find_node_by_name(NULL, "davbus");
2574 /*
2575 * if we didn't find a davbus device, try 'i2s-a' since
2576 * this seems to be what iBooks (& Tumbler) have.
2577 */
2578 if (np == NULL) {
2579 i2s_node = of_find_node_by_name(NULL, "i2s-a");
2580 np = of_node_get(i2s_node);
2581 }
2582
2583 /* if we didn't find this - perhaps we are on an early model
2584 * which _only_ has an 'awacs' node
2585 */
2586 if (np == NULL && awacs_node)
2587 np = of_node_get(awacs_node);
2588
2589 /* if we failed all these return null - this will cause the
2590 * driver to give up...
2591 */
2592 return np ;
2593 }
2594
2595 /* Get the OF node that contains the info about the sound chip, inputs s-rates
2596 etc.
2597 This node does not exist (or contains much reduced info) on earlier machines
2598 we have to deduce the info other ways for these.
2599 */
2600
2601 static struct device_node* __init
2602 get_snd_info_node(struct device_node *io)
2603 {
2604 struct device_node *info;
2605
2606 for_each_node_by_name(info, "sound")
2607 if (info->parent == io)
2608 break;
2609 return info;
2610 }
2611
2612 /* Find out what type of codec we have.
2613 */
2614
2615 static int __init
2616 get_codec_type(struct device_node *info)
2617 {
2618 /* already set if pre-davbus model and info will be NULL */
2619 int codec = awacs_revision ;
2620
2621 if (info) {
2622 /* must do awacs first to allow screamer to overide it */
2623 if (device_is_compatible(info, "awacs"))
2624 codec = AWACS_AWACS ;
2625 if (device_is_compatible(info, "screamer"))
2626 codec = AWACS_SCREAMER;
2627 if (device_is_compatible(info, "burgundy"))
2628 codec = AWACS_BURGUNDY ;
2629 if (device_is_compatible(info, "daca"))
2630 codec = AWACS_DACA;
2631 if (device_is_compatible(info, "tumbler"))
2632 codec = AWACS_TUMBLER;
2633 if (device_is_compatible(info, "snapper"))
2634 codec = AWACS_SNAPPER;
2635 }
2636 return codec ;
2637 }
2638
2639 /* find out what type, if any, of expansion card we have
2640 */
2641 static void __init
2642 get_expansion_type(void)
2643 {
2644 struct device_node *dn;
2645
2646 dn = of_find_node_by_name(NULL, "perch");
2647 if (dn != NULL)
2648 has_perch = 1;
2649 of_node_put(dn);
2650
2651 dn = of_find_node_by_name(NULL, "pb-ziva-pc");
2652 if (dn != NULL)
2653 has_ziva = 1;
2654 of_node_put(dn);
2655 /* need to work out how we deal with iMac SRS module */
2656 }
2657
2658 /* set up frame rates.
2659 * I suspect that these routines don't quite go about it the right way:
2660 * - where there is more than one rate - I think that the first property
2661 * value is the number of rates.
2662 * TODO: check some more device trees and modify accordingly
2663 * Set dmasound.mach.max_dsp_rate on the basis of these routines.
2664 */
2665
2666 static void __init
2667 awacs_init_frame_rates(const unsigned int *prop, unsigned int l)
2668 {
2669 int i ;
2670 if (prop) {
2671 for (i=0; i<8; i++)
2672 awacs_freqs_ok[i] = 0 ;
2673 for (l /= sizeof(int); l > 0; --l) {
2674 unsigned int r = *prop++;
2675 /* Apple 'Fixed' format */
2676 if (r >= 0x10000)
2677 r >>= 16;
2678 for (i = 0; i < 8; ++i) {
2679 if (r == awacs_freqs[i]) {
2680 awacs_freqs_ok[i] = 1;
2681 break;
2682 }
2683 }
2684 }
2685 }
2686 /* else we assume that all the rates are available */
2687 }
2688
2689 static void __init
2690 burgundy_init_frame_rates(const unsigned int *prop, unsigned int l)
2691 {
2692 int temp[9] ;
2693 int i = 0 ;
2694 if (prop) {
2695 for (l /= sizeof(int); l > 0; --l) {
2696 unsigned int r = *prop++;
2697 /* Apple 'Fixed' format */
2698 if (r >= 0x10000)
2699 r >>= 16;
2700 temp[i] = r ;
2701 i++ ; if(i>=9) i=8;
2702 }
2703 }
2704 #ifdef DEBUG_DMASOUND
2705 if (i > 1){
2706 int j;
2707 printk("dmasound_pmac: burgundy with multiple frame rates\n");
2708 for(j=0; j<i; j++)
2709 printk("%d ", temp[j]) ;
2710 printk("\n") ;
2711 }
2712 #endif
2713 }
2714
2715 static void __init
2716 daca_init_frame_rates(const unsigned int *prop, unsigned int l)
2717 {
2718 int temp[9] ;
2719 int i = 0 ;
2720 if (prop) {
2721 for (l /= sizeof(int); l > 0; --l) {
2722 unsigned int r = *prop++;
2723 /* Apple 'Fixed' format */
2724 if (r >= 0x10000)
2725 r >>= 16;
2726 temp[i] = r ;
2727 i++ ; if(i>=9) i=8;
2728
2729 }
2730 }
2731 #ifdef DEBUG_DMASOUND
2732 if (i > 1){
2733 int j;
2734 printk("dmasound_pmac: DACA with multiple frame rates\n");
2735 for(j=0; j<i; j++)
2736 printk("%d ", temp[j]) ;
2737 printk("\n") ;
2738 }
2739 #endif
2740 }
2741
2742 static void __init
2743 init_frame_rates(const unsigned int *prop, unsigned int l)
2744 {
2745 switch (awacs_revision) {
2746 case AWACS_TUMBLER:
2747 case AWACS_SNAPPER:
2748 tas_init_frame_rates(prop, l);
2749 break ;
2750 case AWACS_DACA:
2751 daca_init_frame_rates(prop, l);
2752 break ;
2753 case AWACS_BURGUNDY:
2754 burgundy_init_frame_rates(prop, l);
2755 break ;
2756 default:
2757 awacs_init_frame_rates(prop, l);
2758 break ;
2759 }
2760 }
2761
2762 /* find things/machines that can't do mac-io byteswap
2763 */
2764
2765 static void __init
2766 set_hw_byteswap(struct device_node *io)
2767 {
2768 struct device_node *mio ;
2769 unsigned int kl = 0 ;
2770
2771 /* if seems that Keylargo can't byte-swap */
2772
2773 for (mio = io->parent; mio ; mio = mio->parent) {
2774 if (strcmp(mio->name, "mac-io") == 0) {
2775 if (device_is_compatible(mio, "Keylargo"))
2776 kl = 1;
2777 break;
2778 }
2779 }
2780 hw_can_byteswap = !kl;
2781 }
2782
2783 /* Allocate the resources necessary for beep generation. This cannot be (quite)
2784 done statically (yet) because we cannot do virt_to_bus() on static vars when
2785 the code is loaded as a module.
2786
2787 for the sake of saving the possibility that two allocations will incur the
2788 overhead of two pull-ups in DBDMA_ALIGN() we allocate the 'emergency' dmdma
2789 command here as well... even tho' it is not part of the beep process.
2790 */
2791
2792 int32_t
2793 __init setup_beep(void)
2794 {
2795 /* Initialize beep stuff */
2796 /* want one cmd buffer for beeps, and a second one for emergencies
2797 - i.e. dbdma error conditions.
2798 ask for three to allow for pull up in DBDMA_ALIGN().
2799 */
2800 beep_dbdma_cmd_space =
2801 kmalloc((2 + 1) * sizeof(struct dbdma_cmd), GFP_KERNEL);
2802 if(beep_dbdma_cmd_space == NULL) {
2803 printk(KERN_ERR "dmasound_pmac: no beep dbdma cmd space\n") ;
2804 return -ENOMEM ;
2805 }
2806 beep_dbdma_cmd = (volatile struct dbdma_cmd *)
2807 DBDMA_ALIGN(beep_dbdma_cmd_space);
2808 /* set up emergency dbdma cmd */
2809 emergency_dbdma_cmd = beep_dbdma_cmd+1 ;
2810 beep_buf = kmalloc(BEEP_BUFLEN * 4, GFP_KERNEL);
2811 if (beep_buf == NULL) {
2812 printk(KERN_ERR "dmasound_pmac: no memory for beep buffer\n");
2813 kfree(beep_dbdma_cmd_space) ;
2814 return -ENOMEM ;
2815 }
2816 return 0 ;
2817 }
2818
2819 static struct input_dev *awacs_beep_dev;
2820
2821 int __init dmasound_awacs_init(void)
2822 {
2823 struct device_node *io = NULL, *info = NULL;
2824 int vol, res;
2825
2826 if (!machine_is(powermac))
2827 return -ENODEV;
2828
2829 awacs_subframe = 0;
2830 awacs_revision = 0;
2831 hw_can_byteswap = 1 ; /* most can */
2832
2833 /* look for models we need to handle specially */
2834 set_model() ;
2835
2836 /* find the OF node that tells us about the dbdma stuff
2837 */
2838 io = get_snd_io_node();
2839 if (io == NULL) {
2840 #ifdef DEBUG_DMASOUND
2841 printk("dmasound_pmac: couldn't find sound io OF node\n");
2842 #endif
2843 goto no_device;
2844 }
2845
2846 /* find the OF node that tells us about the sound sub-system
2847 * this doesn't exist on pre-davbus machines (earlier than 9500)
2848 */
2849 if (awacs_revision != AWACS_AWACS) { /* set for pre-davbus */
2850 info = get_snd_info_node(io) ;
2851 if (info == NULL){
2852 #ifdef DEBUG_DMASOUND
2853 printk("dmasound_pmac: couldn't find 'sound' OF node\n");
2854 #endif
2855 goto no_device;
2856 }
2857 }
2858
2859 awacs_revision = get_codec_type(info) ;
2860 if (awacs_revision == 0) {
2861 #ifdef DEBUG_DMASOUND
2862 printk("dmasound_pmac: couldn't find a Codec we can handle\n");
2863 #endif
2864 goto no_device; /* we don't know this type of h/w */
2865 }
2866
2867 /* set up perch, ziva, SRS or whatever else we have as sound
2868 * expansion.
2869 */
2870 get_expansion_type();
2871
2872 /* we've now got enough information to make up the audio topology.
2873 * we will map the sound part of mac-io now so that we can probe for
2874 * other info if necessary (early AWACS we want to read chip ids)
2875 */
2876
2877 if (of_get_address(io, 2, NULL, NULL) == NULL) {
2878 /* OK - maybe we need to use the 'awacs' node (on earlier
2879 * machines).
2880 */
2881 if (awacs_node) {
2882 of_node_put(io);
2883 io = of_node_get(awacs_node);
2884 if (of_get_address(io, 2, NULL, NULL) == NULL) {
2885 printk("dmasound_pmac: can't use %s\n",
2886 io->full_name);
2887 goto no_device;
2888 }
2889 } else
2890 printk("dmasound_pmac: can't use %s\n", io->full_name);
2891 }
2892
2893 if (of_address_to_resource(io, 0, &awacs_rsrc[0]) ||
2894 request_mem_region(awacs_rsrc[0].start,
2895 awacs_rsrc[0].end - awacs_rsrc[0].start + 1,
2896 " (IO)") == NULL) {
2897 printk(KERN_ERR "dmasound: can't request IO resource !\n");
2898 goto no_device;
2899 }
2900 if (of_address_to_resource(io, 1, &awacs_rsrc[1]) ||
2901 request_mem_region(awacs_rsrc[1].start,
2902 awacs_rsrc[1].end - awacs_rsrc[1].start + 1,
2903 " (tx dma)") == NULL) {
2904 release_mem_region(awacs_rsrc[0].start,
2905 awacs_rsrc[0].end - awacs_rsrc[0].start + 1);
2906 printk(KERN_ERR "dmasound: can't request Tx DMA resource !\n");
2907 goto no_device;
2908 }
2909 if (of_address_to_resource(io, 2, &awacs_rsrc[2]) ||
2910 request_mem_region(awacs_rsrc[2].start,
2911 awacs_rsrc[2].end - awacs_rsrc[2].start + 1,
2912 " (rx dma)") == NULL) {
2913 release_mem_region(awacs_rsrc[0].start,
2914 awacs_rsrc[0].end - awacs_rsrc[0].start + 1);
2915 release_mem_region(awacs_rsrc[1].start,
2916 awacs_rsrc[1].end - awacs_rsrc[1].start + 1);
2917 printk(KERN_ERR "dmasound: can't request Rx DMA resource !\n");
2918 goto no_device;
2919 }
2920
2921 awacs_beep_dev = input_allocate_device();
2922 if (!awacs_beep_dev) {
2923 release_mem_region(awacs_rsrc[0].start,
2924 awacs_rsrc[0].end - awacs_rsrc[0].start + 1);
2925 release_mem_region(awacs_rsrc[1].start,
2926 awacs_rsrc[1].end - awacs_rsrc[1].start + 1);
2927 release_mem_region(awacs_rsrc[2].start,
2928 awacs_rsrc[2].end - awacs_rsrc[2].start + 1);
2929 printk(KERN_ERR "dmasound: can't allocate input device !\n");
2930 goto no_device;
2931 }
2932
2933 awacs_beep_dev->name = "dmasound beeper";
2934 awacs_beep_dev->phys = "macio/input0";
2935 awacs_beep_dev->id.bustype = BUS_HOST;
2936 awacs_beep_dev->event = awacs_beep_event;
2937 awacs_beep_dev->sndbit[0] = BIT(SND_BELL) | BIT(SND_TONE);
2938 awacs_beep_dev->evbit[0] = BIT(EV_SND);
2939
2940 /* all OF versions I've seen use this value */
2941 if (i2s_node)
2942 i2s = ioremap(awacs_rsrc[0].start, 0x1000);
2943 else
2944 awacs = ioremap(awacs_rsrc[0].start, 0x1000);
2945 awacs_txdma = ioremap(awacs_rsrc[1].start, 0x100);
2946 awacs_rxdma = ioremap(awacs_rsrc[2].start, 0x100);
2947
2948 /* first of all make sure that the chip is powered up....*/
2949 pmac_call_feature(PMAC_FTR_SOUND_CHIP_ENABLE, io, 0, 1);
2950 if (awacs_revision == AWACS_SCREAMER && awacs)
2951 awacs_recalibrate();
2952
2953 awacs_irq = irq_of_parse_and_map(io, 0);
2954 awacs_tx_irq = irq_of_parse_and_map(io, 1);
2955 awacs_rx_irq = irq_of_parse_and_map(io, 2);
2956
2957 /* Hack for legacy crap that will be killed someday */
2958 of_node_put(awacs_node);
2959 awacs_node = of_node_get(io);
2960
2961 /* if we have an awacs or screamer - probe the chip to make
2962 * sure we have the right revision.
2963 */
2964
2965 if (awacs_revision <= AWACS_SCREAMER){
2966 uint32_t temp, rev, mfg ;
2967 /* find out the awacs revision from the chip */
2968 temp = in_le32(&awacs->codec_stat);
2969 rev = (temp >> 12) & 0xf;
2970 mfg = (temp >> 8) & 0xf;
2971 #ifdef DEBUG_DMASOUND
2972 printk("dmasound_pmac: Awacs/Screamer Codec Mfct: %d Rev %d\n", mfg, rev);
2973 #endif
2974 if (rev >= AWACS_SCREAMER)
2975 awacs_revision = AWACS_SCREAMER ;
2976 else
2977 awacs_revision = rev ;
2978 }
2979
2980 dmasound.mach = machPMac;
2981
2982 /* find out other bits & pieces from OF, these may be present
2983 only on some models ... so be careful.
2984 */
2985
2986 /* in the absence of a frame rates property we will use the defaults
2987 */
2988
2989 if (info) {
2990 const unsigned int *prop;
2991 unsigned int l;
2992
2993 sound_device_id = 0;
2994 /* device ID appears post g3 b&w */
2995 prop = of_get_property(info, "device-id", NULL);
2996 if (prop != 0)
2997 sound_device_id = *prop;
2998
2999 /* look for a property saying what sample rates
3000 are available */
3001
3002 prop = of_get_property(info, "sample-rates", &l);
3003 if (prop == 0)
3004 prop = of_get_property(info, "output-frame-rates", &l);
3005
3006 /* if it's there use it to set up frame rates */
3007 init_frame_rates(prop, l) ;
3008 of_node_put(info);
3009 info = NULL;
3010 }
3011
3012 if (awacs)
3013 out_le32(&awacs->control, 0x11); /* set everything quiesent */
3014
3015 set_hw_byteswap(io) ; /* figure out if the h/w can do it */
3016
3017 #ifdef CONFIG_NVRAM
3018 /* get default volume from nvram */
3019 vol = ((pmac_xpram_read( 8 ) & 7 ) << 1 );
3020 #else
3021 vol = 0;
3022 #endif
3023
3024 /* set up tracking values */
3025 spk_vol = vol * 100 ;
3026 spk_vol /= 7 ; /* get set value to a percentage */
3027 spk_vol |= (spk_vol << 8) ; /* equal left & right */
3028 line_vol = passthru_vol = spk_vol ;
3029
3030 /* fill regs that are shared between AWACS & Burgundy */
3031
3032 awacs_reg[2] = vol + (vol << 6);
3033 awacs_reg[4] = vol + (vol << 6);
3034 awacs_reg[5] = vol + (vol << 6); /* screamer has loopthru vol control */
3035 awacs_reg[6] = 0; /* maybe should be vol << 3 for PCMCIA speaker */
3036 awacs_reg[7] = 0;
3037
3038 awacs_reg[0] = MASK_MUX_CD;
3039 awacs_reg[1] = MASK_LOOPTHRU;
3040
3041 /* FIXME: Only machines with external SRS module need MASK_PAROUT */
3042 if (has_perch || sound_device_id == 0x5
3043 || /*sound_device_id == 0x8 ||*/ sound_device_id == 0xb)
3044 awacs_reg[1] |= MASK_PAROUT0 | MASK_PAROUT1;
3045
3046 switch (awacs_revision) {
3047 case AWACS_TUMBLER:
3048 tas_register_driver(&tas3001c_hooks);
3049 tas_init(I2C_DRIVERID_TAS3001C, I2C_DRIVERNAME_TAS3001C);
3050 tas_dmasound_init();
3051 tas_post_init();
3052 break ;
3053 case AWACS_SNAPPER:
3054 tas_register_driver(&tas3004_hooks);
3055 tas_init(I2C_DRIVERID_TAS3004,I2C_DRIVERNAME_TAS3004);
3056 tas_dmasound_init();
3057 tas_post_init();
3058 break;
3059 case AWACS_DACA:
3060 daca_init();
3061 break;
3062 case AWACS_BURGUNDY:
3063 awacs_burgundy_init();
3064 break ;
3065 case AWACS_SCREAMER:
3066 case AWACS_AWACS:
3067 default:
3068 load_awacs();
3069 break ;
3070 }
3071
3072 /* enable/set-up external modules - when we know how */
3073
3074 if (has_perch)
3075 awacs_enable_amp(100 * 0x101);
3076
3077 /* Reset dbdma channels */
3078 out_le32(&awacs_txdma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16);
3079 while (in_le32(&awacs_txdma->status) & RUN)
3080 udelay(1);
3081 out_le32(&awacs_rxdma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16);
3082 while (in_le32(&awacs_rxdma->status) & RUN)
3083 udelay(1);
3084
3085 /* Initialize beep stuff */
3086 if ((res=setup_beep()))
3087 return res ;
3088
3089 #ifdef CONFIG_PM
3090 pmu_register_sleep_notifier(&awacs_sleep_notifier);
3091 #endif /* CONFIG_PM */
3092
3093 /* Powerbooks have odd ways of enabling inputs such as
3094 an expansion-bay CD or sound from an internal modem
3095 or a PC-card modem. */
3096 if (is_pbook_3X00) {
3097 /*
3098 * Enable CD and PC-card sound inputs.
3099 * This is done by reading from address
3100 * f301a000, + 0x10 to enable the expansion-bay
3101 * CD sound input, + 0x80 to enable the PC-card
3102 * sound input. The 0x100 enables the SCSI bus
3103 * terminator power.
3104 */
3105 latch_base = ioremap (0xf301a000, 0x1000);
3106 in_8(latch_base + 0x190);
3107
3108 } else if (is_pbook_g3) {
3109 struct device_node* mio;
3110 macio_base = NULL;
3111 for (mio = io->parent; mio; mio = mio->parent) {
3112 if (strcmp(mio->name, "mac-io") == 0) {
3113 struct resource r;
3114 if (of_address_to_resource(mio, 0, &r) == 0)
3115 macio_base = ioremap(r.start, 0x40);
3116 break;
3117 }
3118 }
3119 /*
3120 * Enable CD sound input.
3121 * The relevant bits for writing to this byte are 0x8f.
3122 * I haven't found out what the 0x80 bit does.
3123 * For the 0xf bits, writing 3 or 7 enables the CD
3124 * input, any other value disables it. Values
3125 * 1, 3, 5, 7 enable the microphone. Values 0, 2,
3126 * 4, 6, 8 - f enable the input from the modem.
3127 * -- paulus.
3128 */
3129 if (macio_base)
3130 out_8(macio_base + 0x37, 3);
3131 }
3132
3133 if (hw_can_byteswap)
3134 dmasound.mach.hardware_afmts = (AFMT_S16_BE | AFMT_S16_LE) ;
3135 else
3136 dmasound.mach.hardware_afmts = AFMT_S16_BE ;
3137
3138 /* shut out chips that do output only.
3139 * may need to extend this to machines which have no inputs - even tho'
3140 * they use screamer - IIRC one of the powerbooks is like this.
3141 */
3142
3143 if (awacs_revision != AWACS_DACA) {
3144 dmasound.mach.capabilities = DSP_CAP_DUPLEX ;
3145 dmasound.mach.record = PMacRecord ;
3146 }
3147
3148 dmasound.mach.default_hard = def_hard ;
3149 dmasound.mach.default_soft = def_soft ;
3150
3151 switch (awacs_revision) {
3152 case AWACS_BURGUNDY:
3153 sprintf(awacs_name, "PowerMac Burgundy ") ;
3154 break ;
3155 case AWACS_DACA:
3156 sprintf(awacs_name, "PowerMac DACA ") ;
3157 break ;
3158 case AWACS_TUMBLER:
3159 sprintf(awacs_name, "PowerMac Tumbler ") ;
3160 break ;
3161 case AWACS_SNAPPER:
3162 sprintf(awacs_name, "PowerMac Snapper ") ;
3163 break ;
3164 case AWACS_SCREAMER:
3165 sprintf(awacs_name, "PowerMac Screamer ") ;
3166 break ;
3167 case AWACS_AWACS:
3168 default:
3169 sprintf(awacs_name, "PowerMac AWACS rev %d ", awacs_revision) ;
3170 break ;
3171 }
3172
3173 /*
3174 * XXX: we should handle errors here, but that would mean
3175 * rewriting the whole init code. later..
3176 */
3177 input_register_device(awacs_beep_dev);
3178
3179 of_node_put(io);
3180
3181 return dmasound_init();
3182
3183 no_device:
3184 of_node_put(info);
3185 of_node_put(awacs_node);
3186 of_node_put(i2s_node);
3187 of_node_put(io);
3188 return -ENODEV ;
3189 }
3190
3191 static void __exit dmasound_awacs_cleanup(void)
3192 {
3193 input_unregister_device(awacs_beep_dev);
3194
3195 switch (awacs_revision) {
3196 case AWACS_TUMBLER:
3197 case AWACS_SNAPPER:
3198 tas_dmasound_cleanup();
3199 tas_cleanup();
3200 break ;
3201 case AWACS_DACA:
3202 daca_cleanup();
3203 break;
3204 }
3205 dmasound_deinit();
3206
3207 of_node_put(awacs_node);
3208 of_node_put(i2s_node);
3209 }
3210
3211 MODULE_DESCRIPTION("PowerMac built-in audio driver.");
3212 MODULE_LICENSE("GPL");
3213
3214 module_init(dmasound_awacs_init);
3215 module_exit(dmasound_awacs_cleanup);
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