Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * sound/ad1848.c | |
3 | * | |
4 | * The low level driver for the AD1848/CS4248 codec chip which | |
5 | * is used for example in the MS Sound System. | |
6 | * | |
7 | * The CS4231 which is used in the GUS MAX and some other cards is | |
8 | * upwards compatible with AD1848 and this driver is able to drive it. | |
9 | * | |
10 | * CS4231A and AD1845 are upward compatible with CS4231. However | |
11 | * the new features of these chips are different. | |
12 | * | |
13 | * CS4232 is a PnP audio chip which contains a CS4231A (and SB, MPU). | |
14 | * CS4232A is an improved version of CS4232. | |
15 | * | |
16 | * | |
17 | * | |
18 | * Copyright (C) by Hannu Savolainen 1993-1997 | |
19 | * | |
20 | * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) | |
21 | * Version 2 (June 1991). See the "COPYING" file distributed with this software | |
22 | * for more info. | |
23 | * | |
24 | * | |
25 | * Thomas Sailer : ioctl code reworked (vmalloc/vfree removed) | |
26 | * general sleep/wakeup clean up. | |
27 | * Alan Cox : reformatted. Fixed SMP bugs. Moved to kernel alloc/free | |
28 | * of irqs. Use dev_id. | |
29 | * Christoph Hellwig : adapted to module_init/module_exit | |
30 | * Aki Laukkanen : added power management support | |
31 | * Arnaldo C. de Melo : added missing restore_flags in ad1848_resume | |
32 | * Miguel Freitas : added ISA PnP support | |
33 | * Alan Cox : Added CS4236->4239 identification | |
34 | * Daniel T. Cobra : Alernate config/mixer for later chips | |
35 | * Alan Cox : Merged chip idents and config code | |
36 | * | |
37 | * TODO | |
38 | * APM save restore assist code on IBM thinkpad | |
39 | * | |
40 | * Status: | |
41 | * Tested. Believed fully functional. | |
42 | */ | |
43 | ||
44 | #include <linux/config.h> | |
45 | #include <linux/init.h> | |
46 | #include <linux/interrupt.h> | |
47 | #include <linux/module.h> | |
48 | #include <linux/stddef.h> | |
49 | #include <linux/pm.h> | |
50 | #include <linux/isapnp.h> | |
51 | #include <linux/pnp.h> | |
52 | #include <linux/spinlock.h> | |
53 | ||
54 | #define DEB(x) | |
55 | #define DEB1(x) | |
56 | #include "sound_config.h" | |
57 | ||
58 | #include "ad1848.h" | |
59 | #include "ad1848_mixer.h" | |
60 | ||
61 | typedef struct | |
62 | { | |
63 | spinlock_t lock; | |
64 | int base; | |
65 | int irq; | |
66 | int dma1, dma2; | |
67 | int dual_dma; /* 1, when two DMA channels allocated */ | |
68 | int subtype; | |
69 | unsigned char MCE_bit; | |
70 | unsigned char saved_regs[64]; /* Includes extended register space */ | |
71 | int debug_flag; | |
72 | ||
73 | int audio_flags; | |
74 | int record_dev, playback_dev; | |
75 | ||
76 | int xfer_count; | |
77 | int audio_mode; | |
78 | int open_mode; | |
79 | int intr_active; | |
80 | char *chip_name, *name; | |
81 | int model; | |
82 | #define MD_1848 1 | |
83 | #define MD_4231 2 | |
84 | #define MD_4231A 3 | |
85 | #define MD_1845 4 | |
86 | #define MD_4232 5 | |
87 | #define MD_C930 6 | |
88 | #define MD_IWAVE 7 | |
89 | #define MD_4235 8 /* Crystal Audio CS4235 */ | |
90 | #define MD_1845_SSCAPE 9 /* Ensoniq Soundscape PNP*/ | |
91 | #define MD_4236 10 /* 4236 and higher */ | |
92 | #define MD_42xB 11 /* CS 42xB */ | |
93 | #define MD_4239 12 /* CS4239 */ | |
94 | ||
95 | /* Mixer parameters */ | |
96 | int recmask; | |
97 | int supported_devices, orig_devices; | |
98 | int supported_rec_devices, orig_rec_devices; | |
99 | int *levels; | |
100 | short mixer_reroute[32]; | |
101 | int dev_no; | |
102 | volatile unsigned long timer_ticks; | |
103 | int timer_running; | |
104 | int irq_ok; | |
105 | mixer_ents *mix_devices; | |
106 | int mixer_output_port; | |
107 | ||
108 | /* Power management */ | |
109 | struct pm_dev *pmdev; | |
110 | } ad1848_info; | |
111 | ||
112 | typedef struct ad1848_port_info | |
113 | { | |
114 | int open_mode; | |
115 | int speed; | |
116 | unsigned char speed_bits; | |
117 | int channels; | |
118 | int audio_format; | |
119 | unsigned char format_bits; | |
120 | } | |
121 | ad1848_port_info; | |
122 | ||
123 | static struct address_info cfg; | |
124 | static int nr_ad1848_devs; | |
125 | ||
126 | static int deskpro_xl; | |
127 | static int deskpro_m; | |
128 | static int soundpro; | |
129 | ||
130 | static volatile signed char irq2dev[17] = { | |
131 | -1, -1, -1, -1, -1, -1, -1, -1, | |
132 | -1, -1, -1, -1, -1, -1, -1, -1, -1 | |
133 | }; | |
134 | ||
135 | #ifndef EXCLUDE_TIMERS | |
136 | static int timer_installed = -1; | |
137 | #endif | |
138 | ||
139 | static int loaded; | |
140 | ||
141 | static int ad_format_mask[13 /*devc->model */ ] = | |
142 | { | |
143 | 0, | |
144 | AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW, | |
145 | AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM, | |
146 | AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM, | |
147 | AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW, /* AD1845 */ | |
148 | AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM, | |
149 | AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM, | |
150 | AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM, | |
151 | AFMT_U8 | AFMT_S16_LE /* CS4235 */, | |
152 | AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW /* Ensoniq Soundscape*/, | |
153 | AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM, | |
154 | AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM, | |
155 | AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM | |
156 | }; | |
157 | ||
158 | static ad1848_info adev_info[MAX_AUDIO_DEV]; | |
159 | ||
160 | #define io_Index_Addr(d) ((d)->base) | |
161 | #define io_Indexed_Data(d) ((d)->base+1) | |
162 | #define io_Status(d) ((d)->base+2) | |
163 | #define io_Polled_IO(d) ((d)->base+3) | |
164 | ||
165 | static struct { | |
166 | unsigned char flags; | |
167 | #define CAP_F_TIMER 0x01 | |
168 | } capabilities [10 /*devc->model */ ] = { | |
169 | {0} | |
170 | ,{0} /* MD_1848 */ | |
171 | ,{CAP_F_TIMER} /* MD_4231 */ | |
172 | ,{CAP_F_TIMER} /* MD_4231A */ | |
173 | ,{CAP_F_TIMER} /* MD_1845 */ | |
174 | ,{CAP_F_TIMER} /* MD_4232 */ | |
175 | ,{0} /* MD_C930 */ | |
176 | ,{CAP_F_TIMER} /* MD_IWAVE */ | |
177 | ,{0} /* MD_4235 */ | |
178 | ,{CAP_F_TIMER} /* MD_1845_SSCAPE */ | |
179 | }; | |
180 | ||
181 | #ifdef CONFIG_PNP | |
182 | static int isapnp = 1; | |
183 | static int isapnpjump; | |
184 | static int reverse; | |
185 | ||
186 | static int audio_activated; | |
187 | #else | |
188 | static int isapnp; | |
189 | #endif | |
190 | ||
191 | ||
192 | ||
193 | static int ad1848_open(int dev, int mode); | |
194 | static void ad1848_close(int dev); | |
195 | static void ad1848_output_block(int dev, unsigned long buf, int count, int intrflag); | |
196 | static void ad1848_start_input(int dev, unsigned long buf, int count, int intrflag); | |
197 | static int ad1848_prepare_for_output(int dev, int bsize, int bcount); | |
198 | static int ad1848_prepare_for_input(int dev, int bsize, int bcount); | |
199 | static void ad1848_halt(int dev); | |
200 | static void ad1848_halt_input(int dev); | |
201 | static void ad1848_halt_output(int dev); | |
202 | static void ad1848_trigger(int dev, int bits); | |
203 | static int ad1848_pm_callback(struct pm_dev *dev, pm_request_t rqst, void *data); | |
204 | ||
205 | #ifndef EXCLUDE_TIMERS | |
206 | static int ad1848_tmr_install(int dev); | |
207 | static void ad1848_tmr_reprogram(int dev); | |
208 | #endif | |
209 | ||
210 | static int ad_read(ad1848_info * devc, int reg) | |
211 | { | |
212 | int x; | |
213 | int timeout = 900000; | |
214 | ||
215 | while (timeout > 0 && inb(devc->base) == 0x80) /*Are we initializing */ | |
216 | timeout--; | |
217 | ||
218 | if(reg < 32) | |
219 | { | |
220 | outb(((unsigned char) (reg & 0xff) | devc->MCE_bit), io_Index_Addr(devc)); | |
221 | x = inb(io_Indexed_Data(devc)); | |
222 | } | |
223 | else | |
224 | { | |
225 | int xreg, xra; | |
226 | ||
227 | xreg = (reg & 0xff) - 32; | |
228 | xra = (((xreg & 0x0f) << 4) & 0xf0) | 0x08 | ((xreg & 0x10) >> 2); | |
229 | outb(((unsigned char) (23 & 0xff) | devc->MCE_bit), io_Index_Addr(devc)); | |
230 | outb(((unsigned char) (xra & 0xff)), io_Indexed_Data(devc)); | |
231 | x = inb(io_Indexed_Data(devc)); | |
232 | } | |
233 | ||
234 | return x; | |
235 | } | |
236 | ||
237 | static void ad_write(ad1848_info * devc, int reg, int data) | |
238 | { | |
239 | int timeout = 900000; | |
240 | ||
241 | while (timeout > 0 && inb(devc->base) == 0x80) /* Are we initializing */ | |
242 | timeout--; | |
243 | ||
244 | if(reg < 32) | |
245 | { | |
246 | outb(((unsigned char) (reg & 0xff) | devc->MCE_bit), io_Index_Addr(devc)); | |
247 | outb(((unsigned char) (data & 0xff)), io_Indexed_Data(devc)); | |
248 | } | |
249 | else | |
250 | { | |
251 | int xreg, xra; | |
252 | ||
253 | xreg = (reg & 0xff) - 32; | |
254 | xra = (((xreg & 0x0f) << 4) & 0xf0) | 0x08 | ((xreg & 0x10) >> 2); | |
255 | outb(((unsigned char) (23 & 0xff) | devc->MCE_bit), io_Index_Addr(devc)); | |
256 | outb(((unsigned char) (xra & 0xff)), io_Indexed_Data(devc)); | |
257 | outb((unsigned char) (data & 0xff), io_Indexed_Data(devc)); | |
258 | } | |
259 | } | |
260 | ||
261 | static void wait_for_calibration(ad1848_info * devc) | |
262 | { | |
263 | int timeout = 0; | |
264 | ||
265 | /* | |
266 | * Wait until the auto calibration process has finished. | |
267 | * | |
268 | * 1) Wait until the chip becomes ready (reads don't return 0x80). | |
269 | * 2) Wait until the ACI bit of I11 gets on and then off. | |
270 | */ | |
271 | ||
272 | timeout = 100000; | |
273 | while (timeout > 0 && inb(devc->base) == 0x80) | |
274 | timeout--; | |
275 | if (inb(devc->base) & 0x80) | |
276 | printk(KERN_WARNING "ad1848: Auto calibration timed out(1).\n"); | |
277 | ||
278 | timeout = 100; | |
279 | while (timeout > 0 && !(ad_read(devc, 11) & 0x20)) | |
280 | timeout--; | |
281 | if (!(ad_read(devc, 11) & 0x20)) | |
282 | return; | |
283 | ||
284 | timeout = 80000; | |
285 | while (timeout > 0 && (ad_read(devc, 11) & 0x20)) | |
286 | timeout--; | |
287 | if (ad_read(devc, 11) & 0x20) | |
288 | if ( (devc->model != MD_1845) || (devc->model != MD_1845_SSCAPE)) | |
289 | printk(KERN_WARNING "ad1848: Auto calibration timed out(3).\n"); | |
290 | } | |
291 | ||
292 | static void ad_mute(ad1848_info * devc) | |
293 | { | |
294 | int i; | |
295 | unsigned char prev; | |
296 | ||
297 | /* | |
298 | * Save old register settings and mute output channels | |
299 | */ | |
300 | ||
301 | for (i = 6; i < 8; i++) | |
302 | { | |
303 | prev = devc->saved_regs[i] = ad_read(devc, i); | |
304 | } | |
305 | ||
306 | } | |
307 | ||
308 | static void ad_unmute(ad1848_info * devc) | |
309 | { | |
310 | } | |
311 | ||
312 | static void ad_enter_MCE(ad1848_info * devc) | |
313 | { | |
314 | int timeout = 1000; | |
315 | unsigned short prev; | |
316 | ||
317 | while (timeout > 0 && inb(devc->base) == 0x80) /*Are we initializing */ | |
318 | timeout--; | |
319 | ||
320 | devc->MCE_bit = 0x40; | |
321 | prev = inb(io_Index_Addr(devc)); | |
322 | if (prev & 0x40) | |
323 | { | |
324 | return; | |
325 | } | |
326 | outb((devc->MCE_bit), io_Index_Addr(devc)); | |
327 | } | |
328 | ||
329 | static void ad_leave_MCE(ad1848_info * devc) | |
330 | { | |
331 | unsigned char prev, acal; | |
332 | int timeout = 1000; | |
333 | ||
334 | while (timeout > 0 && inb(devc->base) == 0x80) /*Are we initializing */ | |
335 | timeout--; | |
336 | ||
337 | acal = ad_read(devc, 9); | |
338 | ||
339 | devc->MCE_bit = 0x00; | |
340 | prev = inb(io_Index_Addr(devc)); | |
341 | outb((0x00), io_Index_Addr(devc)); /* Clear the MCE bit */ | |
342 | ||
343 | if ((prev & 0x40) == 0) /* Not in MCE mode */ | |
344 | { | |
345 | return; | |
346 | } | |
347 | outb((0x00), io_Index_Addr(devc)); /* Clear the MCE bit */ | |
348 | if (acal & 0x08) /* Auto calibration is enabled */ | |
349 | wait_for_calibration(devc); | |
350 | } | |
351 | ||
352 | static int ad1848_set_recmask(ad1848_info * devc, int mask) | |
353 | { | |
354 | unsigned char recdev; | |
355 | int i, n; | |
356 | unsigned long flags; | |
357 | ||
358 | mask &= devc->supported_rec_devices; | |
359 | ||
360 | /* Rename the mixer bits if necessary */ | |
361 | for (i = 0; i < 32; i++) | |
362 | { | |
363 | if (devc->mixer_reroute[i] != i) | |
364 | { | |
365 | if (mask & (1 << i)) | |
366 | { | |
367 | mask &= ~(1 << i); | |
368 | mask |= (1 << devc->mixer_reroute[i]); | |
369 | } | |
370 | } | |
371 | } | |
372 | ||
373 | n = 0; | |
374 | for (i = 0; i < 32; i++) /* Count selected device bits */ | |
375 | if (mask & (1 << i)) | |
376 | n++; | |
377 | ||
378 | spin_lock_irqsave(&devc->lock,flags); | |
379 | if (!soundpro) { | |
380 | if (n == 0) | |
381 | mask = SOUND_MASK_MIC; | |
382 | else if (n != 1) { /* Too many devices selected */ | |
383 | mask &= ~devc->recmask; /* Filter out active settings */ | |
384 | ||
385 | n = 0; | |
386 | for (i = 0; i < 32; i++) /* Count selected device bits */ | |
387 | if (mask & (1 << i)) | |
388 | n++; | |
389 | ||
390 | if (n != 1) | |
391 | mask = SOUND_MASK_MIC; | |
392 | } | |
393 | switch (mask) { | |
394 | case SOUND_MASK_MIC: | |
395 | recdev = 2; | |
396 | break; | |
397 | ||
398 | case SOUND_MASK_LINE: | |
399 | case SOUND_MASK_LINE3: | |
400 | recdev = 0; | |
401 | break; | |
402 | ||
403 | case SOUND_MASK_CD: | |
404 | case SOUND_MASK_LINE1: | |
405 | recdev = 1; | |
406 | break; | |
407 | ||
408 | case SOUND_MASK_IMIX: | |
409 | recdev = 3; | |
410 | break; | |
411 | ||
412 | default: | |
413 | mask = SOUND_MASK_MIC; | |
414 | recdev = 2; | |
415 | } | |
416 | ||
417 | recdev <<= 6; | |
418 | ad_write(devc, 0, (ad_read(devc, 0) & 0x3f) | recdev); | |
419 | ad_write(devc, 1, (ad_read(devc, 1) & 0x3f) | recdev); | |
420 | } else { /* soundpro */ | |
421 | unsigned char val; | |
422 | int set_rec_bit; | |
423 | int j; | |
424 | ||
425 | for (i = 0; i < 32; i++) { /* For each bit */ | |
426 | if ((devc->supported_rec_devices & (1 << i)) == 0) | |
427 | continue; /* Device not supported */ | |
428 | ||
429 | for (j = LEFT_CHN; j <= RIGHT_CHN; j++) { | |
430 | if (devc->mix_devices[i][j].nbits == 0) /* Inexistent channel */ | |
431 | continue; | |
432 | ||
433 | /* | |
434 | * This is tricky: | |
435 | * set_rec_bit becomes 1 if the corresponding bit in mask is set | |
436 | * then it gets flipped if the polarity is inverse | |
437 | */ | |
438 | set_rec_bit = ((mask & (1 << i)) != 0) ^ devc->mix_devices[i][j].recpol; | |
439 | ||
440 | val = ad_read(devc, devc->mix_devices[i][j].recreg); | |
441 | val &= ~(1 << devc->mix_devices[i][j].recpos); | |
442 | val |= (set_rec_bit << devc->mix_devices[i][j].recpos); | |
443 | ad_write(devc, devc->mix_devices[i][j].recreg, val); | |
444 | } | |
445 | } | |
446 | } | |
447 | spin_unlock_irqrestore(&devc->lock,flags); | |
448 | ||
449 | /* Rename the mixer bits back if necessary */ | |
450 | for (i = 0; i < 32; i++) | |
451 | { | |
452 | if (devc->mixer_reroute[i] != i) | |
453 | { | |
454 | if (mask & (1 << devc->mixer_reroute[i])) | |
455 | { | |
456 | mask &= ~(1 << devc->mixer_reroute[i]); | |
457 | mask |= (1 << i); | |
458 | } | |
459 | } | |
460 | } | |
461 | devc->recmask = mask; | |
462 | return mask; | |
463 | } | |
464 | ||
465 | static void change_bits(ad1848_info * devc, unsigned char *regval, | |
466 | unsigned char *muteval, int dev, int chn, int newval) | |
467 | { | |
468 | unsigned char mask; | |
469 | int shift; | |
470 | int mute; | |
471 | int mutemask; | |
472 | int set_mute_bit; | |
473 | ||
474 | set_mute_bit = (newval == 0) ^ devc->mix_devices[dev][chn].mutepol; | |
475 | ||
476 | if (devc->mix_devices[dev][chn].polarity == 1) /* Reverse */ | |
477 | newval = 100 - newval; | |
478 | ||
479 | mask = (1 << devc->mix_devices[dev][chn].nbits) - 1; | |
480 | shift = devc->mix_devices[dev][chn].bitpos; | |
481 | ||
482 | if (devc->mix_devices[dev][chn].mutepos == 8) | |
483 | { /* if there is no mute bit */ | |
484 | mute = 0; /* No mute bit; do nothing special */ | |
485 | mutemask = ~0; /* No mute bit; do nothing special */ | |
486 | } | |
487 | else | |
488 | { | |
489 | mute = (set_mute_bit << devc->mix_devices[dev][chn].mutepos); | |
490 | mutemask = ~(1 << devc->mix_devices[dev][chn].mutepos); | |
491 | } | |
492 | ||
493 | newval = (int) ((newval * mask) + 50) / 100; /* Scale it */ | |
494 | *regval &= ~(mask << shift); /* Clear bits */ | |
495 | *regval |= (newval & mask) << shift; /* Set new value */ | |
496 | ||
497 | *muteval &= mutemask; | |
498 | *muteval |= mute; | |
499 | } | |
500 | ||
501 | static int ad1848_mixer_get(ad1848_info * devc, int dev) | |
502 | { | |
503 | if (!((1 << dev) & devc->supported_devices)) | |
504 | return -EINVAL; | |
505 | ||
506 | dev = devc->mixer_reroute[dev]; | |
507 | ||
508 | return devc->levels[dev]; | |
509 | } | |
510 | ||
511 | static void ad1848_mixer_set_channel(ad1848_info *devc, int dev, int value, int channel) | |
512 | { | |
513 | int regoffs, muteregoffs; | |
514 | unsigned char val, muteval; | |
515 | unsigned long flags; | |
516 | ||
517 | regoffs = devc->mix_devices[dev][channel].regno; | |
518 | muteregoffs = devc->mix_devices[dev][channel].mutereg; | |
519 | val = ad_read(devc, regoffs); | |
520 | ||
521 | if (muteregoffs != regoffs) { | |
522 | muteval = ad_read(devc, muteregoffs); | |
523 | change_bits(devc, &val, &muteval, dev, channel, value); | |
524 | } | |
525 | else | |
526 | change_bits(devc, &val, &val, dev, channel, value); | |
527 | ||
528 | spin_lock_irqsave(&devc->lock,flags); | |
529 | ad_write(devc, regoffs, val); | |
530 | devc->saved_regs[regoffs] = val; | |
531 | if (muteregoffs != regoffs) { | |
532 | ad_write(devc, muteregoffs, muteval); | |
533 | devc->saved_regs[muteregoffs] = muteval; | |
534 | } | |
535 | spin_unlock_irqrestore(&devc->lock,flags); | |
536 | } | |
537 | ||
538 | static int ad1848_mixer_set(ad1848_info * devc, int dev, int value) | |
539 | { | |
540 | int left = value & 0x000000ff; | |
541 | int right = (value & 0x0000ff00) >> 8; | |
542 | int retvol; | |
543 | ||
544 | if (dev > 31) | |
545 | return -EINVAL; | |
546 | ||
547 | if (!(devc->supported_devices & (1 << dev))) | |
548 | return -EINVAL; | |
549 | ||
550 | dev = devc->mixer_reroute[dev]; | |
551 | ||
552 | if (devc->mix_devices[dev][LEFT_CHN].nbits == 0) | |
553 | return -EINVAL; | |
554 | ||
555 | if (left > 100) | |
556 | left = 100; | |
557 | if (right > 100) | |
558 | right = 100; | |
559 | ||
560 | if (devc->mix_devices[dev][RIGHT_CHN].nbits == 0) /* Mono control */ | |
561 | right = left; | |
562 | ||
563 | retvol = left | (right << 8); | |
564 | ||
565 | /* Scale volumes */ | |
566 | left = mix_cvt[left]; | |
567 | right = mix_cvt[right]; | |
568 | ||
569 | devc->levels[dev] = retvol; | |
570 | ||
571 | /* | |
572 | * Set the left channel | |
573 | */ | |
574 | ad1848_mixer_set_channel(devc, dev, left, LEFT_CHN); | |
575 | ||
576 | /* | |
577 | * Set the right channel | |
578 | */ | |
579 | if (devc->mix_devices[dev][RIGHT_CHN].nbits == 0) | |
580 | goto out; | |
581 | ad1848_mixer_set_channel(devc, dev, right, RIGHT_CHN); | |
582 | ||
583 | out: | |
584 | return retvol; | |
585 | } | |
586 | ||
587 | static void ad1848_mixer_reset(ad1848_info * devc) | |
588 | { | |
589 | int i; | |
590 | char name[32]; | |
591 | unsigned long flags; | |
592 | ||
593 | devc->mix_devices = &(ad1848_mix_devices[0]); | |
594 | ||
595 | sprintf(name, "%s_%d", devc->chip_name, nr_ad1848_devs); | |
596 | ||
597 | for (i = 0; i < 32; i++) | |
598 | devc->mixer_reroute[i] = i; | |
599 | ||
600 | devc->supported_rec_devices = MODE1_REC_DEVICES; | |
601 | ||
602 | switch (devc->model) | |
603 | { | |
604 | case MD_4231: | |
605 | case MD_4231A: | |
606 | case MD_1845: | |
607 | case MD_1845_SSCAPE: | |
608 | devc->supported_devices = MODE2_MIXER_DEVICES; | |
609 | break; | |
610 | ||
611 | case MD_C930: | |
612 | devc->supported_devices = C930_MIXER_DEVICES; | |
613 | devc->mix_devices = &(c930_mix_devices[0]); | |
614 | break; | |
615 | ||
616 | case MD_IWAVE: | |
617 | devc->supported_devices = MODE3_MIXER_DEVICES; | |
618 | devc->mix_devices = &(iwave_mix_devices[0]); | |
619 | break; | |
620 | ||
621 | case MD_42xB: | |
622 | case MD_4239: | |
623 | devc->mix_devices = &(cs42xb_mix_devices[0]); | |
624 | devc->supported_devices = MODE3_MIXER_DEVICES; | |
625 | break; | |
626 | case MD_4232: | |
627 | case MD_4235: | |
628 | case MD_4236: | |
629 | devc->supported_devices = MODE3_MIXER_DEVICES; | |
630 | break; | |
631 | ||
632 | case MD_1848: | |
633 | if (soundpro) { | |
634 | devc->supported_devices = SPRO_MIXER_DEVICES; | |
635 | devc->supported_rec_devices = SPRO_REC_DEVICES; | |
636 | devc->mix_devices = &(spro_mix_devices[0]); | |
637 | break; | |
638 | } | |
639 | ||
640 | default: | |
641 | devc->supported_devices = MODE1_MIXER_DEVICES; | |
642 | } | |
643 | ||
644 | devc->orig_devices = devc->supported_devices; | |
645 | devc->orig_rec_devices = devc->supported_rec_devices; | |
646 | ||
647 | devc->levels = load_mixer_volumes(name, default_mixer_levels, 1); | |
648 | ||
649 | for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) | |
650 | { | |
651 | if (devc->supported_devices & (1 << i)) | |
652 | ad1848_mixer_set(devc, i, devc->levels[i]); | |
653 | } | |
654 | ||
655 | ad1848_set_recmask(devc, SOUND_MASK_MIC); | |
656 | ||
657 | devc->mixer_output_port = devc->levels[31] | AUDIO_HEADPHONE | AUDIO_LINE_OUT; | |
658 | ||
659 | spin_lock_irqsave(&devc->lock,flags); | |
660 | if (!soundpro) { | |
661 | if (devc->mixer_output_port & AUDIO_SPEAKER) | |
662 | ad_write(devc, 26, ad_read(devc, 26) & ~0x40); /* Unmute mono out */ | |
663 | else | |
664 | ad_write(devc, 26, ad_read(devc, 26) | 0x40); /* Mute mono out */ | |
665 | } else { | |
666 | /* | |
667 | * From the "wouldn't it be nice if the mixer API had (better) | |
668 | * support for custom stuff" category | |
669 | */ | |
670 | /* Enable surround mode and SB16 mixer */ | |
671 | ad_write(devc, 16, 0x60); | |
672 | } | |
673 | spin_unlock_irqrestore(&devc->lock,flags); | |
674 | } | |
675 | ||
676 | static int ad1848_mixer_ioctl(int dev, unsigned int cmd, void __user *arg) | |
677 | { | |
678 | ad1848_info *devc = mixer_devs[dev]->devc; | |
679 | int val; | |
680 | ||
681 | if (cmd == SOUND_MIXER_PRIVATE1) | |
682 | { | |
683 | if (get_user(val, (int __user *)arg)) | |
684 | return -EFAULT; | |
685 | ||
686 | if (val != 0xffff) | |
687 | { | |
688 | unsigned long flags; | |
689 | val &= (AUDIO_SPEAKER | AUDIO_HEADPHONE | AUDIO_LINE_OUT); | |
690 | devc->mixer_output_port = val; | |
691 | val |= AUDIO_HEADPHONE | AUDIO_LINE_OUT; /* Always on */ | |
692 | devc->mixer_output_port = val; | |
693 | spin_lock_irqsave(&devc->lock,flags); | |
694 | if (val & AUDIO_SPEAKER) | |
695 | ad_write(devc, 26, ad_read(devc, 26) & ~0x40); /* Unmute mono out */ | |
696 | else | |
697 | ad_write(devc, 26, ad_read(devc, 26) | 0x40); /* Mute mono out */ | |
698 | spin_unlock_irqrestore(&devc->lock,flags); | |
699 | } | |
700 | val = devc->mixer_output_port; | |
701 | return put_user(val, (int __user *)arg); | |
702 | } | |
703 | if (cmd == SOUND_MIXER_PRIVATE2) | |
704 | { | |
705 | if (get_user(val, (int __user *)arg)) | |
706 | return -EFAULT; | |
707 | return(ad1848_control(AD1848_MIXER_REROUTE, val)); | |
708 | } | |
709 | if (((cmd >> 8) & 0xff) == 'M') | |
710 | { | |
711 | if (_SIOC_DIR(cmd) & _SIOC_WRITE) | |
712 | { | |
713 | switch (cmd & 0xff) | |
714 | { | |
715 | case SOUND_MIXER_RECSRC: | |
716 | if (get_user(val, (int __user *)arg)) | |
717 | return -EFAULT; | |
718 | val = ad1848_set_recmask(devc, val); | |
719 | break; | |
720 | ||
721 | default: | |
722 | if (get_user(val, (int __user *)arg)) | |
723 | return -EFAULT; | |
724 | val = ad1848_mixer_set(devc, cmd & 0xff, val); | |
725 | break; | |
726 | } | |
727 | return put_user(val, (int __user *)arg); | |
728 | } | |
729 | else | |
730 | { | |
731 | switch (cmd & 0xff) | |
732 | { | |
733 | /* | |
734 | * Return parameters | |
735 | */ | |
736 | ||
737 | case SOUND_MIXER_RECSRC: | |
738 | val = devc->recmask; | |
739 | break; | |
740 | ||
741 | case SOUND_MIXER_DEVMASK: | |
742 | val = devc->supported_devices; | |
743 | break; | |
744 | ||
745 | case SOUND_MIXER_STEREODEVS: | |
746 | val = devc->supported_devices; | |
747 | if (devc->model != MD_C930) | |
748 | val &= ~(SOUND_MASK_SPEAKER | SOUND_MASK_IMIX); | |
749 | break; | |
750 | ||
751 | case SOUND_MIXER_RECMASK: | |
752 | val = devc->supported_rec_devices; | |
753 | break; | |
754 | ||
755 | case SOUND_MIXER_CAPS: | |
756 | val=SOUND_CAP_EXCL_INPUT; | |
757 | break; | |
758 | ||
759 | default: | |
760 | val = ad1848_mixer_get(devc, cmd & 0xff); | |
761 | break; | |
762 | } | |
763 | return put_user(val, (int __user *)arg); | |
764 | } | |
765 | } | |
766 | else | |
767 | return -EINVAL; | |
768 | } | |
769 | ||
770 | static int ad1848_set_speed(int dev, int arg) | |
771 | { | |
772 | ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; | |
773 | ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; | |
774 | ||
775 | /* | |
776 | * The sampling speed is encoded in the least significant nibble of I8. The | |
777 | * LSB selects the clock source (0=24.576 MHz, 1=16.9344 MHz) and other | |
778 | * three bits select the divisor (indirectly): | |
779 | * | |
780 | * The available speeds are in the following table. Keep the speeds in | |
781 | * the increasing order. | |
782 | */ | |
783 | typedef struct | |
784 | { | |
785 | int speed; | |
786 | unsigned char bits; | |
787 | } | |
788 | speed_struct; | |
789 | ||
790 | static speed_struct speed_table[] = | |
791 | { | |
792 | {5510, (0 << 1) | 1}, | |
793 | {5510, (0 << 1) | 1}, | |
794 | {6620, (7 << 1) | 1}, | |
795 | {8000, (0 << 1) | 0}, | |
796 | {9600, (7 << 1) | 0}, | |
797 | {11025, (1 << 1) | 1}, | |
798 | {16000, (1 << 1) | 0}, | |
799 | {18900, (2 << 1) | 1}, | |
800 | {22050, (3 << 1) | 1}, | |
801 | {27420, (2 << 1) | 0}, | |
802 | {32000, (3 << 1) | 0}, | |
803 | {33075, (6 << 1) | 1}, | |
804 | {37800, (4 << 1) | 1}, | |
805 | {44100, (5 << 1) | 1}, | |
806 | {48000, (6 << 1) | 0} | |
807 | }; | |
808 | ||
809 | int i, n, selected = -1; | |
810 | ||
811 | n = sizeof(speed_table) / sizeof(speed_struct); | |
812 | ||
813 | if (arg <= 0) | |
814 | return portc->speed; | |
815 | ||
816 | if (devc->model == MD_1845 || devc->model == MD_1845_SSCAPE) /* AD1845 has different timer than others */ | |
817 | { | |
818 | if (arg < 4000) | |
819 | arg = 4000; | |
820 | if (arg > 50000) | |
821 | arg = 50000; | |
822 | ||
823 | portc->speed = arg; | |
824 | portc->speed_bits = speed_table[3].bits; | |
825 | return portc->speed; | |
826 | } | |
827 | if (arg < speed_table[0].speed) | |
828 | selected = 0; | |
829 | if (arg > speed_table[n - 1].speed) | |
830 | selected = n - 1; | |
831 | ||
832 | for (i = 1 /*really */ ; selected == -1 && i < n; i++) | |
833 | { | |
834 | if (speed_table[i].speed == arg) | |
835 | selected = i; | |
836 | else if (speed_table[i].speed > arg) | |
837 | { | |
838 | int diff1, diff2; | |
839 | ||
840 | diff1 = arg - speed_table[i - 1].speed; | |
841 | diff2 = speed_table[i].speed - arg; | |
842 | ||
843 | if (diff1 < diff2) | |
844 | selected = i - 1; | |
845 | else | |
846 | selected = i; | |
847 | } | |
848 | } | |
849 | if (selected == -1) | |
850 | { | |
851 | printk(KERN_WARNING "ad1848: Can't find speed???\n"); | |
852 | selected = 3; | |
853 | } | |
854 | portc->speed = speed_table[selected].speed; | |
855 | portc->speed_bits = speed_table[selected].bits; | |
856 | return portc->speed; | |
857 | } | |
858 | ||
859 | static short ad1848_set_channels(int dev, short arg) | |
860 | { | |
861 | ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; | |
862 | ||
863 | if (arg != 1 && arg != 2) | |
864 | return portc->channels; | |
865 | ||
866 | portc->channels = arg; | |
867 | return arg; | |
868 | } | |
869 | ||
870 | static unsigned int ad1848_set_bits(int dev, unsigned int arg) | |
871 | { | |
872 | ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; | |
873 | ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; | |
874 | ||
875 | static struct format_tbl | |
876 | { | |
877 | int format; | |
878 | unsigned char bits; | |
879 | } | |
880 | format2bits[] = | |
881 | { | |
882 | { | |
883 | 0, 0 | |
884 | } | |
885 | , | |
886 | { | |
887 | AFMT_MU_LAW, 1 | |
888 | } | |
889 | , | |
890 | { | |
891 | AFMT_A_LAW, 3 | |
892 | } | |
893 | , | |
894 | { | |
895 | AFMT_IMA_ADPCM, 5 | |
896 | } | |
897 | , | |
898 | { | |
899 | AFMT_U8, 0 | |
900 | } | |
901 | , | |
902 | { | |
903 | AFMT_S16_LE, 2 | |
904 | } | |
905 | , | |
906 | { | |
907 | AFMT_S16_BE, 6 | |
908 | } | |
909 | , | |
910 | { | |
911 | AFMT_S8, 0 | |
912 | } | |
913 | , | |
914 | { | |
915 | AFMT_U16_LE, 0 | |
916 | } | |
917 | , | |
918 | { | |
919 | AFMT_U16_BE, 0 | |
920 | } | |
921 | }; | |
922 | int i, n = sizeof(format2bits) / sizeof(struct format_tbl); | |
923 | ||
924 | if (arg == 0) | |
925 | return portc->audio_format; | |
926 | ||
927 | if (!(arg & ad_format_mask[devc->model])) | |
928 | arg = AFMT_U8; | |
929 | ||
930 | portc->audio_format = arg; | |
931 | ||
932 | for (i = 0; i < n; i++) | |
933 | if (format2bits[i].format == arg) | |
934 | { | |
935 | if ((portc->format_bits = format2bits[i].bits) == 0) | |
936 | return portc->audio_format = AFMT_U8; /* Was not supported */ | |
937 | ||
938 | return arg; | |
939 | } | |
940 | /* Still hanging here. Something must be terribly wrong */ | |
941 | portc->format_bits = 0; | |
942 | return portc->audio_format = AFMT_U8; | |
943 | } | |
944 | ||
945 | static struct audio_driver ad1848_audio_driver = | |
946 | { | |
947 | .owner = THIS_MODULE, | |
948 | .open = ad1848_open, | |
949 | .close = ad1848_close, | |
950 | .output_block = ad1848_output_block, | |
951 | .start_input = ad1848_start_input, | |
952 | .prepare_for_input = ad1848_prepare_for_input, | |
953 | .prepare_for_output = ad1848_prepare_for_output, | |
954 | .halt_io = ad1848_halt, | |
955 | .halt_input = ad1848_halt_input, | |
956 | .halt_output = ad1848_halt_output, | |
957 | .trigger = ad1848_trigger, | |
958 | .set_speed = ad1848_set_speed, | |
959 | .set_bits = ad1848_set_bits, | |
960 | .set_channels = ad1848_set_channels | |
961 | }; | |
962 | ||
963 | static struct mixer_operations ad1848_mixer_operations = | |
964 | { | |
965 | .owner = THIS_MODULE, | |
966 | .id = "SOUNDPORT", | |
967 | .name = "AD1848/CS4248/CS4231", | |
968 | .ioctl = ad1848_mixer_ioctl | |
969 | }; | |
970 | ||
971 | static int ad1848_open(int dev, int mode) | |
972 | { | |
973 | ad1848_info *devc; | |
974 | ad1848_port_info *portc; | |
975 | unsigned long flags; | |
976 | ||
977 | if (dev < 0 || dev >= num_audiodevs) | |
978 | return -ENXIO; | |
979 | ||
980 | devc = (ad1848_info *) audio_devs[dev]->devc; | |
981 | portc = (ad1848_port_info *) audio_devs[dev]->portc; | |
982 | ||
983 | /* here we don't have to protect against intr */ | |
984 | spin_lock(&devc->lock); | |
985 | if (portc->open_mode || (devc->open_mode & mode)) | |
986 | { | |
987 | spin_unlock(&devc->lock); | |
988 | return -EBUSY; | |
989 | } | |
990 | devc->dual_dma = 0; | |
991 | ||
992 | if (audio_devs[dev]->flags & DMA_DUPLEX) | |
993 | { | |
994 | devc->dual_dma = 1; | |
995 | } | |
996 | devc->intr_active = 0; | |
997 | devc->audio_mode = 0; | |
998 | devc->open_mode |= mode; | |
999 | portc->open_mode = mode; | |
1000 | spin_unlock(&devc->lock); | |
1001 | ad1848_trigger(dev, 0); | |
1002 | ||
1003 | if (mode & OPEN_READ) | |
1004 | devc->record_dev = dev; | |
1005 | if (mode & OPEN_WRITE) | |
1006 | devc->playback_dev = dev; | |
1007 | /* | |
1008 | * Mute output until the playback really starts. This decreases clicking (hope so). | |
1009 | */ | |
1010 | spin_lock_irqsave(&devc->lock,flags); | |
1011 | ad_mute(devc); | |
1012 | spin_unlock_irqrestore(&devc->lock,flags); | |
1013 | ||
1014 | return 0; | |
1015 | } | |
1016 | ||
1017 | static void ad1848_close(int dev) | |
1018 | { | |
1019 | unsigned long flags; | |
1020 | ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; | |
1021 | ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; | |
1022 | ||
1023 | DEB(printk("ad1848_close(void)\n")); | |
1024 | ||
1025 | devc->intr_active = 0; | |
1026 | ad1848_halt(dev); | |
1027 | ||
1028 | spin_lock_irqsave(&devc->lock,flags); | |
1029 | ||
1030 | devc->audio_mode = 0; | |
1031 | devc->open_mode &= ~portc->open_mode; | |
1032 | portc->open_mode = 0; | |
1033 | ||
1034 | ad_unmute(devc); | |
1035 | spin_unlock_irqrestore(&devc->lock,flags); | |
1036 | } | |
1037 | ||
1038 | static void ad1848_output_block(int dev, unsigned long buf, int count, int intrflag) | |
1039 | { | |
1040 | unsigned long flags, cnt; | |
1041 | ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; | |
1042 | ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; | |
1043 | ||
1044 | cnt = count; | |
1045 | ||
1046 | if (portc->audio_format == AFMT_IMA_ADPCM) | |
1047 | { | |
1048 | cnt /= 4; | |
1049 | } | |
1050 | else | |
1051 | { | |
1052 | if (portc->audio_format & (AFMT_S16_LE | AFMT_S16_BE)) /* 16 bit data */ | |
1053 | cnt >>= 1; | |
1054 | } | |
1055 | if (portc->channels > 1) | |
1056 | cnt >>= 1; | |
1057 | cnt--; | |
1058 | ||
1059 | if ((devc->audio_mode & PCM_ENABLE_OUTPUT) && (audio_devs[dev]->flags & DMA_AUTOMODE) && | |
1060 | intrflag && | |
1061 | cnt == devc->xfer_count) | |
1062 | { | |
1063 | devc->audio_mode |= PCM_ENABLE_OUTPUT; | |
1064 | devc->intr_active = 1; | |
1065 | return; /* | |
1066 | * Auto DMA mode on. No need to react | |
1067 | */ | |
1068 | } | |
1069 | spin_lock_irqsave(&devc->lock,flags); | |
1070 | ||
1071 | ad_write(devc, 15, (unsigned char) (cnt & 0xff)); | |
1072 | ad_write(devc, 14, (unsigned char) ((cnt >> 8) & 0xff)); | |
1073 | ||
1074 | devc->xfer_count = cnt; | |
1075 | devc->audio_mode |= PCM_ENABLE_OUTPUT; | |
1076 | devc->intr_active = 1; | |
1077 | spin_unlock_irqrestore(&devc->lock,flags); | |
1078 | } | |
1079 | ||
1080 | static void ad1848_start_input(int dev, unsigned long buf, int count, int intrflag) | |
1081 | { | |
1082 | unsigned long flags, cnt; | |
1083 | ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; | |
1084 | ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; | |
1085 | ||
1086 | cnt = count; | |
1087 | if (portc->audio_format == AFMT_IMA_ADPCM) | |
1088 | { | |
1089 | cnt /= 4; | |
1090 | } | |
1091 | else | |
1092 | { | |
1093 | if (portc->audio_format & (AFMT_S16_LE | AFMT_S16_BE)) /* 16 bit data */ | |
1094 | cnt >>= 1; | |
1095 | } | |
1096 | if (portc->channels > 1) | |
1097 | cnt >>= 1; | |
1098 | cnt--; | |
1099 | ||
1100 | if ((devc->audio_mode & PCM_ENABLE_INPUT) && (audio_devs[dev]->flags & DMA_AUTOMODE) && | |
1101 | intrflag && | |
1102 | cnt == devc->xfer_count) | |
1103 | { | |
1104 | devc->audio_mode |= PCM_ENABLE_INPUT; | |
1105 | devc->intr_active = 1; | |
1106 | return; /* | |
1107 | * Auto DMA mode on. No need to react | |
1108 | */ | |
1109 | } | |
1110 | spin_lock_irqsave(&devc->lock,flags); | |
1111 | ||
1112 | if (devc->model == MD_1848) | |
1113 | { | |
1114 | ad_write(devc, 15, (unsigned char) (cnt & 0xff)); | |
1115 | ad_write(devc, 14, (unsigned char) ((cnt >> 8) & 0xff)); | |
1116 | } | |
1117 | else | |
1118 | { | |
1119 | ad_write(devc, 31, (unsigned char) (cnt & 0xff)); | |
1120 | ad_write(devc, 30, (unsigned char) ((cnt >> 8) & 0xff)); | |
1121 | } | |
1122 | ||
1123 | ad_unmute(devc); | |
1124 | ||
1125 | devc->xfer_count = cnt; | |
1126 | devc->audio_mode |= PCM_ENABLE_INPUT; | |
1127 | devc->intr_active = 1; | |
1128 | spin_unlock_irqrestore(&devc->lock,flags); | |
1129 | } | |
1130 | ||
1131 | static int ad1848_prepare_for_output(int dev, int bsize, int bcount) | |
1132 | { | |
1133 | int timeout; | |
1134 | unsigned char fs, old_fs, tmp = 0; | |
1135 | unsigned long flags; | |
1136 | ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; | |
1137 | ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; | |
1138 | ||
1139 | ad_mute(devc); | |
1140 | ||
1141 | spin_lock_irqsave(&devc->lock,flags); | |
1142 | fs = portc->speed_bits | (portc->format_bits << 5); | |
1143 | ||
1144 | if (portc->channels > 1) | |
1145 | fs |= 0x10; | |
1146 | ||
1147 | ad_enter_MCE(devc); /* Enables changes to the format select reg */ | |
1148 | ||
1149 | if (devc->model == MD_1845 || devc->model == MD_1845_SSCAPE) /* Use alternate speed select registers */ | |
1150 | { | |
1151 | fs &= 0xf0; /* Mask off the rate select bits */ | |
1152 | ||
1153 | ad_write(devc, 22, (portc->speed >> 8) & 0xff); /* Speed MSB */ | |
1154 | ad_write(devc, 23, portc->speed & 0xff); /* Speed LSB */ | |
1155 | } | |
1156 | old_fs = ad_read(devc, 8); | |
1157 | ||
1158 | if (devc->model == MD_4232 || devc->model >= MD_4236) | |
1159 | { | |
1160 | tmp = ad_read(devc, 16); | |
1161 | ad_write(devc, 16, tmp | 0x30); | |
1162 | } | |
1163 | if (devc->model == MD_IWAVE) | |
1164 | ad_write(devc, 17, 0xc2); /* Disable variable frequency select */ | |
1165 | ||
1166 | ad_write(devc, 8, fs); | |
1167 | ||
1168 | /* | |
1169 | * Write to I8 starts resynchronization. Wait until it completes. | |
1170 | */ | |
1171 | ||
1172 | timeout = 0; | |
1173 | while (timeout < 100 && inb(devc->base) != 0x80) | |
1174 | timeout++; | |
1175 | timeout = 0; | |
1176 | while (timeout < 10000 && inb(devc->base) == 0x80) | |
1177 | timeout++; | |
1178 | ||
1179 | if (devc->model >= MD_4232) | |
1180 | ad_write(devc, 16, tmp & ~0x30); | |
1181 | ||
1182 | ad_leave_MCE(devc); /* | |
1183 | * Starts the calibration process. | |
1184 | */ | |
1185 | spin_unlock_irqrestore(&devc->lock,flags); | |
1186 | devc->xfer_count = 0; | |
1187 | ||
1188 | #ifndef EXCLUDE_TIMERS | |
1189 | if (dev == timer_installed && devc->timer_running) | |
1190 | if ((fs & 0x01) != (old_fs & 0x01)) | |
1191 | { | |
1192 | ad1848_tmr_reprogram(dev); | |
1193 | } | |
1194 | #endif | |
1195 | ad1848_halt_output(dev); | |
1196 | return 0; | |
1197 | } | |
1198 | ||
1199 | static int ad1848_prepare_for_input(int dev, int bsize, int bcount) | |
1200 | { | |
1201 | int timeout; | |
1202 | unsigned char fs, old_fs, tmp = 0; | |
1203 | unsigned long flags; | |
1204 | ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; | |
1205 | ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; | |
1206 | ||
1207 | if (devc->audio_mode) | |
1208 | return 0; | |
1209 | ||
1210 | spin_lock_irqsave(&devc->lock,flags); | |
1211 | fs = portc->speed_bits | (portc->format_bits << 5); | |
1212 | ||
1213 | if (portc->channels > 1) | |
1214 | fs |= 0x10; | |
1215 | ||
1216 | ad_enter_MCE(devc); /* Enables changes to the format select reg */ | |
1217 | ||
1218 | if ((devc->model == MD_1845) || (devc->model == MD_1845_SSCAPE)) /* Use alternate speed select registers */ | |
1219 | { | |
1220 | fs &= 0xf0; /* Mask off the rate select bits */ | |
1221 | ||
1222 | ad_write(devc, 22, (portc->speed >> 8) & 0xff); /* Speed MSB */ | |
1223 | ad_write(devc, 23, portc->speed & 0xff); /* Speed LSB */ | |
1224 | } | |
1225 | if (devc->model == MD_4232) | |
1226 | { | |
1227 | tmp = ad_read(devc, 16); | |
1228 | ad_write(devc, 16, tmp | 0x30); | |
1229 | } | |
1230 | if (devc->model == MD_IWAVE) | |
1231 | ad_write(devc, 17, 0xc2); /* Disable variable frequency select */ | |
1232 | ||
1233 | /* | |
1234 | * If mode >= 2 (CS4231), set I28. It's the capture format register. | |
1235 | */ | |
1236 | ||
1237 | if (devc->model != MD_1848) | |
1238 | { | |
1239 | old_fs = ad_read(devc, 28); | |
1240 | ad_write(devc, 28, fs); | |
1241 | ||
1242 | /* | |
1243 | * Write to I28 starts resynchronization. Wait until it completes. | |
1244 | */ | |
1245 | ||
1246 | timeout = 0; | |
1247 | while (timeout < 100 && inb(devc->base) != 0x80) | |
1248 | timeout++; | |
1249 | ||
1250 | timeout = 0; | |
1251 | while (timeout < 10000 && inb(devc->base) == 0x80) | |
1252 | timeout++; | |
1253 | ||
1254 | if (devc->model != MD_1848 && devc->model != MD_1845 && devc->model != MD_1845_SSCAPE) | |
1255 | { | |
1256 | /* | |
1257 | * CS4231 compatible devices don't have separate sampling rate selection | |
1258 | * register for recording an playback. The I8 register is shared so we have to | |
1259 | * set the speed encoding bits of it too. | |
1260 | */ | |
1261 | unsigned char tmp = portc->speed_bits | (ad_read(devc, 8) & 0xf0); | |
1262 | ||
1263 | ad_write(devc, 8, tmp); | |
1264 | /* | |
1265 | * Write to I8 starts resynchronization. Wait until it completes. | |
1266 | */ | |
1267 | timeout = 0; | |
1268 | while (timeout < 100 && inb(devc->base) != 0x80) | |
1269 | timeout++; | |
1270 | ||
1271 | timeout = 0; | |
1272 | while (timeout < 10000 && inb(devc->base) == 0x80) | |
1273 | timeout++; | |
1274 | } | |
1275 | } | |
1276 | else | |
1277 | { /* For AD1848 set I8. */ | |
1278 | ||
1279 | old_fs = ad_read(devc, 8); | |
1280 | ad_write(devc, 8, fs); | |
1281 | /* | |
1282 | * Write to I8 starts resynchronization. Wait until it completes. | |
1283 | */ | |
1284 | timeout = 0; | |
1285 | while (timeout < 100 && inb(devc->base) != 0x80) | |
1286 | timeout++; | |
1287 | timeout = 0; | |
1288 | while (timeout < 10000 && inb(devc->base) == 0x80) | |
1289 | timeout++; | |
1290 | } | |
1291 | ||
1292 | if (devc->model == MD_4232) | |
1293 | ad_write(devc, 16, tmp & ~0x30); | |
1294 | ||
1295 | ad_leave_MCE(devc); /* | |
1296 | * Starts the calibration process. | |
1297 | */ | |
1298 | spin_unlock_irqrestore(&devc->lock,flags); | |
1299 | devc->xfer_count = 0; | |
1300 | ||
1301 | #ifndef EXCLUDE_TIMERS | |
1302 | if (dev == timer_installed && devc->timer_running) | |
1303 | { | |
1304 | if ((fs & 0x01) != (old_fs & 0x01)) | |
1305 | { | |
1306 | ad1848_tmr_reprogram(dev); | |
1307 | } | |
1308 | } | |
1309 | #endif | |
1310 | ad1848_halt_input(dev); | |
1311 | return 0; | |
1312 | } | |
1313 | ||
1314 | static void ad1848_halt(int dev) | |
1315 | { | |
1316 | ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; | |
1317 | ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; | |
1318 | ||
1319 | unsigned char bits = ad_read(devc, 9); | |
1320 | ||
1321 | if (bits & 0x01 && (portc->open_mode & OPEN_WRITE)) | |
1322 | ad1848_halt_output(dev); | |
1323 | ||
1324 | if (bits & 0x02 && (portc->open_mode & OPEN_READ)) | |
1325 | ad1848_halt_input(dev); | |
1326 | devc->audio_mode = 0; | |
1327 | } | |
1328 | ||
1329 | static void ad1848_halt_input(int dev) | |
1330 | { | |
1331 | ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; | |
1332 | unsigned long flags; | |
1333 | ||
1334 | if (!(ad_read(devc, 9) & 0x02)) | |
1335 | return; /* Capture not enabled */ | |
1336 | ||
1337 | spin_lock_irqsave(&devc->lock,flags); | |
1338 | ||
1339 | ad_mute(devc); | |
1340 | ||
1341 | { | |
1342 | int tmout; | |
1343 | ||
1344 | if(!isa_dma_bridge_buggy) | |
1345 | disable_dma(audio_devs[dev]->dmap_in->dma); | |
1346 | ||
1347 | for (tmout = 0; tmout < 100000; tmout++) | |
1348 | if (ad_read(devc, 11) & 0x10) | |
1349 | break; | |
1350 | ad_write(devc, 9, ad_read(devc, 9) & ~0x02); /* Stop capture */ | |
1351 | ||
1352 | if(!isa_dma_bridge_buggy) | |
1353 | enable_dma(audio_devs[dev]->dmap_in->dma); | |
1354 | devc->audio_mode &= ~PCM_ENABLE_INPUT; | |
1355 | } | |
1356 | ||
1357 | outb(0, io_Status(devc)); /* Clear interrupt status */ | |
1358 | outb(0, io_Status(devc)); /* Clear interrupt status */ | |
1359 | ||
1360 | devc->audio_mode &= ~PCM_ENABLE_INPUT; | |
1361 | ||
1362 | spin_unlock_irqrestore(&devc->lock,flags); | |
1363 | } | |
1364 | ||
1365 | static void ad1848_halt_output(int dev) | |
1366 | { | |
1367 | ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; | |
1368 | unsigned long flags; | |
1369 | ||
1370 | if (!(ad_read(devc, 9) & 0x01)) | |
1371 | return; /* Playback not enabled */ | |
1372 | ||
1373 | spin_lock_irqsave(&devc->lock,flags); | |
1374 | ||
1375 | ad_mute(devc); | |
1376 | { | |
1377 | int tmout; | |
1378 | ||
1379 | if(!isa_dma_bridge_buggy) | |
1380 | disable_dma(audio_devs[dev]->dmap_out->dma); | |
1381 | ||
1382 | for (tmout = 0; tmout < 100000; tmout++) | |
1383 | if (ad_read(devc, 11) & 0x10) | |
1384 | break; | |
1385 | ad_write(devc, 9, ad_read(devc, 9) & ~0x01); /* Stop playback */ | |
1386 | ||
1387 | if(!isa_dma_bridge_buggy) | |
1388 | enable_dma(audio_devs[dev]->dmap_out->dma); | |
1389 | ||
1390 | devc->audio_mode &= ~PCM_ENABLE_OUTPUT; | |
1391 | } | |
1392 | ||
1393 | outb((0), io_Status(devc)); /* Clear interrupt status */ | |
1394 | outb((0), io_Status(devc)); /* Clear interrupt status */ | |
1395 | ||
1396 | devc->audio_mode &= ~PCM_ENABLE_OUTPUT; | |
1397 | ||
1398 | spin_unlock_irqrestore(&devc->lock,flags); | |
1399 | } | |
1400 | ||
1401 | static void ad1848_trigger(int dev, int state) | |
1402 | { | |
1403 | ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; | |
1404 | ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; | |
1405 | unsigned long flags; | |
1406 | unsigned char tmp, old; | |
1407 | ||
1408 | spin_lock_irqsave(&devc->lock,flags); | |
1409 | state &= devc->audio_mode; | |
1410 | ||
1411 | tmp = old = ad_read(devc, 9); | |
1412 | ||
1413 | if (portc->open_mode & OPEN_READ) | |
1414 | { | |
1415 | if (state & PCM_ENABLE_INPUT) | |
1416 | tmp |= 0x02; | |
1417 | else | |
1418 | tmp &= ~0x02; | |
1419 | } | |
1420 | if (portc->open_mode & OPEN_WRITE) | |
1421 | { | |
1422 | if (state & PCM_ENABLE_OUTPUT) | |
1423 | tmp |= 0x01; | |
1424 | else | |
1425 | tmp &= ~0x01; | |
1426 | } | |
1427 | /* ad_mute(devc); */ | |
1428 | if (tmp != old) | |
1429 | { | |
1430 | ad_write(devc, 9, tmp); | |
1431 | ad_unmute(devc); | |
1432 | } | |
1433 | spin_unlock_irqrestore(&devc->lock,flags); | |
1434 | } | |
1435 | ||
1436 | static void ad1848_init_hw(ad1848_info * devc) | |
1437 | { | |
1438 | int i; | |
1439 | int *init_values; | |
1440 | ||
1441 | /* | |
1442 | * Initial values for the indirect registers of CS4248/AD1848. | |
1443 | */ | |
1444 | static int init_values_a[] = | |
1445 | { | |
1446 | 0xa8, 0xa8, 0x08, 0x08, 0x08, 0x08, 0x00, 0x00, | |
1447 | 0x00, 0x0c, 0x02, 0x00, 0x8a, 0x01, 0x00, 0x00, | |
1448 | ||
1449 | /* Positions 16 to 31 just for CS4231/2 and ad1845 */ | |
1450 | 0x80, 0x00, 0x10, 0x10, 0x00, 0x00, 0x1f, 0x40, | |
1451 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 | |
1452 | }; | |
1453 | ||
1454 | static int init_values_b[] = | |
1455 | { | |
1456 | /* | |
1457 | Values for the newer chips | |
1458 | Some of the register initialization values were changed. In | |
1459 | order to get rid of the click that preceded PCM playback, | |
1460 | calibration was disabled on the 10th byte. On that same byte, | |
1461 | dual DMA was enabled; on the 11th byte, ADC dithering was | |
1462 | enabled, since that is theoretically desirable; on the 13th | |
1463 | byte, Mode 3 was selected, to enable access to extended | |
1464 | registers. | |
1465 | */ | |
1466 | 0xa8, 0xa8, 0x08, 0x08, 0x08, 0x08, 0x00, 0x00, | |
1467 | 0x00, 0x00, 0x06, 0x00, 0xe0, 0x01, 0x00, 0x00, | |
1468 | 0x80, 0x00, 0x10, 0x10, 0x00, 0x00, 0x1f, 0x40, | |
1469 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 | |
1470 | }; | |
1471 | ||
1472 | /* | |
1473 | * Select initialisation data | |
1474 | */ | |
1475 | ||
1476 | init_values = init_values_a; | |
1477 | if(devc->model >= MD_4236) | |
1478 | init_values = init_values_b; | |
1479 | ||
1480 | for (i = 0; i < 16; i++) | |
1481 | ad_write(devc, i, init_values[i]); | |
1482 | ||
1483 | ||
1484 | ad_mute(devc); /* Initialize some variables */ | |
1485 | ad_unmute(devc); /* Leave it unmuted now */ | |
1486 | ||
1487 | if (devc->model > MD_1848) | |
1488 | { | |
1489 | if (devc->model == MD_1845_SSCAPE) | |
1490 | ad_write(devc, 12, ad_read(devc, 12) | 0x50); | |
1491 | else | |
1492 | ad_write(devc, 12, ad_read(devc, 12) | 0x40); /* Mode2 = enabled */ | |
1493 | ||
1494 | if (devc->model == MD_IWAVE) | |
1495 | ad_write(devc, 12, 0x6c); /* Select codec mode 3 */ | |
1496 | ||
1497 | if (devc->model != MD_1845_SSCAPE) | |
1498 | for (i = 16; i < 32; i++) | |
1499 | ad_write(devc, i, init_values[i]); | |
1500 | ||
1501 | if (devc->model == MD_IWAVE) | |
1502 | ad_write(devc, 16, 0x30); /* Playback and capture counters enabled */ | |
1503 | } | |
1504 | if (devc->model > MD_1848) | |
1505 | { | |
1506 | if (devc->audio_flags & DMA_DUPLEX) | |
1507 | ad_write(devc, 9, ad_read(devc, 9) & ~0x04); /* Dual DMA mode */ | |
1508 | else | |
1509 | ad_write(devc, 9, ad_read(devc, 9) | 0x04); /* Single DMA mode */ | |
1510 | ||
1511 | if (devc->model == MD_1845 || devc->model == MD_1845_SSCAPE) | |
1512 | ad_write(devc, 27, ad_read(devc, 27) | 0x08); /* Alternate freq select enabled */ | |
1513 | ||
1514 | if (devc->model == MD_IWAVE) | |
1515 | { /* Some magic Interwave specific initialization */ | |
1516 | ad_write(devc, 12, 0x6c); /* Select codec mode 3 */ | |
1517 | ad_write(devc, 16, 0x30); /* Playback and capture counters enabled */ | |
1518 | ad_write(devc, 17, 0xc2); /* Alternate feature enable */ | |
1519 | } | |
1520 | } | |
1521 | else | |
1522 | { | |
1523 | devc->audio_flags &= ~DMA_DUPLEX; | |
1524 | ad_write(devc, 9, ad_read(devc, 9) | 0x04); /* Single DMA mode */ | |
1525 | if (soundpro) | |
1526 | ad_write(devc, 12, ad_read(devc, 12) | 0x40); /* Mode2 = enabled */ | |
1527 | } | |
1528 | ||
1529 | outb((0), io_Status(devc)); /* Clear pending interrupts */ | |
1530 | ||
1531 | /* | |
1532 | * Toggle the MCE bit. It completes the initialization phase. | |
1533 | */ | |
1534 | ||
1535 | ad_enter_MCE(devc); /* In case the bit was off */ | |
1536 | ad_leave_MCE(devc); | |
1537 | ||
1538 | ad1848_mixer_reset(devc); | |
1539 | } | |
1540 | ||
1541 | int ad1848_detect(struct resource *ports, int *ad_flags, int *osp) | |
1542 | { | |
1543 | unsigned char tmp; | |
1544 | ad1848_info *devc = &adev_info[nr_ad1848_devs]; | |
1545 | unsigned char tmp1 = 0xff, tmp2 = 0xff; | |
1546 | int optiC930 = 0; /* OPTi 82C930 flag */ | |
1547 | int interwave = 0; | |
1548 | int ad1847_flag = 0; | |
1549 | int cs4248_flag = 0; | |
1550 | int sscape_flag = 0; | |
1551 | int io_base = ports->start; | |
1552 | ||
1553 | int i; | |
1554 | ||
1555 | DDB(printk("ad1848_detect(%x)\n", io_base)); | |
1556 | ||
1557 | if (ad_flags) | |
1558 | { | |
1559 | if (*ad_flags == 0x12345678) | |
1560 | { | |
1561 | interwave = 1; | |
1562 | *ad_flags = 0; | |
1563 | } | |
1564 | ||
1565 | if (*ad_flags == 0x87654321) | |
1566 | { | |
1567 | sscape_flag = 1; | |
1568 | *ad_flags = 0; | |
1569 | } | |
1570 | ||
1571 | if (*ad_flags == 0x12345677) | |
1572 | { | |
1573 | cs4248_flag = 1; | |
1574 | *ad_flags = 0; | |
1575 | } | |
1576 | } | |
1577 | if (nr_ad1848_devs >= MAX_AUDIO_DEV) | |
1578 | { | |
1579 | printk(KERN_ERR "ad1848 - Too many audio devices\n"); | |
1580 | return 0; | |
1581 | } | |
1582 | spin_lock_init(&devc->lock); | |
1583 | devc->base = io_base; | |
1584 | devc->irq_ok = 0; | |
1585 | devc->timer_running = 0; | |
1586 | devc->MCE_bit = 0x40; | |
1587 | devc->irq = 0; | |
1588 | devc->open_mode = 0; | |
1589 | devc->chip_name = devc->name = "AD1848"; | |
1590 | devc->model = MD_1848; /* AD1848 or CS4248 */ | |
1591 | devc->levels = NULL; | |
1592 | devc->debug_flag = 0; | |
1593 | ||
1594 | /* | |
1595 | * Check that the I/O address is in use. | |
1596 | * | |
1597 | * The bit 0x80 of the base I/O port is known to be 0 after the | |
1598 | * chip has performed its power on initialization. Just assume | |
1599 | * this has happened before the OS is starting. | |
1600 | * | |
1601 | * If the I/O address is unused, it typically returns 0xff. | |
1602 | */ | |
1603 | ||
1604 | if (inb(devc->base) == 0xff) | |
1605 | { | |
1606 | DDB(printk("ad1848_detect: The base I/O address appears to be dead\n")); | |
1607 | } | |
1608 | ||
1609 | /* | |
1610 | * Wait for the device to stop initialization | |
1611 | */ | |
1612 | ||
1613 | DDB(printk("ad1848_detect() - step 0\n")); | |
1614 | ||
1615 | for (i = 0; i < 10000000; i++) | |
1616 | { | |
1617 | unsigned char x = inb(devc->base); | |
1618 | ||
1619 | if (x == 0xff || !(x & 0x80)) | |
1620 | break; | |
1621 | } | |
1622 | ||
1623 | DDB(printk("ad1848_detect() - step A\n")); | |
1624 | ||
1625 | if (inb(devc->base) == 0x80) /* Not ready. Let's wait */ | |
1626 | ad_leave_MCE(devc); | |
1627 | ||
1628 | if ((inb(devc->base) & 0x80) != 0x00) /* Not a AD1848 */ | |
1629 | { | |
1630 | DDB(printk("ad1848 detect error - step A (%02x)\n", (int) inb(devc->base))); | |
1631 | return 0; | |
1632 | } | |
1633 | ||
1634 | /* | |
1635 | * Test if it's possible to change contents of the indirect registers. | |
1636 | * Registers 0 and 1 are ADC volume registers. The bit 0x10 is read only | |
1637 | * so try to avoid using it. | |
1638 | */ | |
1639 | ||
1640 | DDB(printk("ad1848_detect() - step B\n")); | |
1641 | ad_write(devc, 0, 0xaa); | |
1642 | ad_write(devc, 1, 0x45); /* 0x55 with bit 0x10 clear */ | |
1643 | ||
1644 | if ((tmp1 = ad_read(devc, 0)) != 0xaa || (tmp2 = ad_read(devc, 1)) != 0x45) | |
1645 | { | |
1646 | if (tmp2 == 0x65) /* AD1847 has couple of bits hardcoded to 1 */ | |
1647 | ad1847_flag = 1; | |
1648 | else | |
1649 | { | |
1650 | DDB(printk("ad1848 detect error - step B (%x/%x)\n", tmp1, tmp2)); | |
1651 | return 0; | |
1652 | } | |
1653 | } | |
1654 | DDB(printk("ad1848_detect() - step C\n")); | |
1655 | ad_write(devc, 0, 0x45); | |
1656 | ad_write(devc, 1, 0xaa); | |
1657 | ||
1658 | if ((tmp1 = ad_read(devc, 0)) != 0x45 || (tmp2 = ad_read(devc, 1)) != 0xaa) | |
1659 | { | |
1660 | if (tmp2 == 0x8a) /* AD1847 has few bits hardcoded to 1 */ | |
1661 | ad1847_flag = 1; | |
1662 | else | |
1663 | { | |
1664 | DDB(printk("ad1848 detect error - step C (%x/%x)\n", tmp1, tmp2)); | |
1665 | return 0; | |
1666 | } | |
1667 | } | |
1668 | ||
1669 | /* | |
1670 | * The indirect register I12 has some read only bits. Let's | |
1671 | * try to change them. | |
1672 | */ | |
1673 | ||
1674 | DDB(printk("ad1848_detect() - step D\n")); | |
1675 | tmp = ad_read(devc, 12); | |
1676 | ad_write(devc, 12, (~tmp) & 0x0f); | |
1677 | ||
1678 | if ((tmp & 0x0f) != ((tmp1 = ad_read(devc, 12)) & 0x0f)) | |
1679 | { | |
1680 | DDB(printk("ad1848 detect error - step D (%x)\n", tmp1)); | |
1681 | return 0; | |
1682 | } | |
1683 | ||
1684 | /* | |
1685 | * NOTE! Last 4 bits of the reg I12 tell the chip revision. | |
1686 | * 0x01=RevB and 0x0A=RevC. | |
1687 | */ | |
1688 | ||
1689 | /* | |
1690 | * The original AD1848/CS4248 has just 15 indirect registers. This means | |
1691 | * that I0 and I16 should return the same value (etc.). | |
1692 | * However this doesn't work with CS4248. Actually it seems to be impossible | |
1693 | * to detect if the chip is a CS4231 or CS4248. | |
1694 | * Ensure that the Mode2 enable bit of I12 is 0. Otherwise this test fails | |
1695 | * with CS4231. | |
1696 | */ | |
1697 | ||
1698 | /* | |
1699 | * OPTi 82C930 has mode2 control bit in another place. This test will fail | |
1700 | * with it. Accept this situation as a possible indication of this chip. | |
1701 | */ | |
1702 | ||
1703 | DDB(printk("ad1848_detect() - step F\n")); | |
1704 | ad_write(devc, 12, 0); /* Mode2=disabled */ | |
1705 | ||
1706 | for (i = 0; i < 16; i++) | |
1707 | { | |
1708 | if ((tmp1 = ad_read(devc, i)) != (tmp2 = ad_read(devc, i + 16))) | |
1709 | { | |
1710 | DDB(printk("ad1848 detect step F(%d/%x/%x) - OPTi chip???\n", i, tmp1, tmp2)); | |
1711 | if (!ad1847_flag) | |
1712 | optiC930 = 1; | |
1713 | break; | |
1714 | } | |
1715 | } | |
1716 | ||
1717 | /* | |
1718 | * Try to switch the chip to mode2 (CS4231) by setting the MODE2 bit (0x40). | |
1719 | * The bit 0x80 is always 1 in CS4248 and CS4231. | |
1720 | */ | |
1721 | ||
1722 | DDB(printk("ad1848_detect() - step G\n")); | |
1723 | ||
1724 | if (ad_flags && *ad_flags == 400) | |
1725 | *ad_flags = 0; | |
1726 | else | |
1727 | ad_write(devc, 12, 0x40); /* Set mode2, clear 0x80 */ | |
1728 | ||
1729 | ||
1730 | if (ad_flags) | |
1731 | *ad_flags = 0; | |
1732 | ||
1733 | tmp1 = ad_read(devc, 12); | |
1734 | if (tmp1 & 0x80) | |
1735 | { | |
1736 | if (ad_flags) | |
1737 | *ad_flags |= AD_F_CS4248; | |
1738 | ||
1739 | devc->chip_name = "CS4248"; /* Our best knowledge just now */ | |
1740 | } | |
1741 | if (optiC930 || (tmp1 & 0xc0) == (0x80 | 0x40)) | |
1742 | { | |
1743 | /* | |
1744 | * CS4231 detected - is it? | |
1745 | * | |
1746 | * Verify that setting I0 doesn't change I16. | |
1747 | */ | |
1748 | ||
1749 | DDB(printk("ad1848_detect() - step H\n")); | |
1750 | ad_write(devc, 16, 0); /* Set I16 to known value */ | |
1751 | ||
1752 | ad_write(devc, 0, 0x45); | |
1753 | if ((tmp1 = ad_read(devc, 16)) != 0x45) /* No change -> CS4231? */ | |
1754 | { | |
1755 | ad_write(devc, 0, 0xaa); | |
1756 | if ((tmp1 = ad_read(devc, 16)) == 0xaa) /* Rotten bits? */ | |
1757 | { | |
1758 | DDB(printk("ad1848 detect error - step H(%x)\n", tmp1)); | |
1759 | return 0; | |
1760 | } | |
1761 | ||
1762 | /* | |
1763 | * Verify that some bits of I25 are read only. | |
1764 | */ | |
1765 | ||
1766 | DDB(printk("ad1848_detect() - step I\n")); | |
1767 | tmp1 = ad_read(devc, 25); /* Original bits */ | |
1768 | ad_write(devc, 25, ~tmp1); /* Invert all bits */ | |
1769 | if ((ad_read(devc, 25) & 0xe7) == (tmp1 & 0xe7)) | |
1770 | { | |
1771 | int id; | |
1772 | ||
1773 | /* | |
1774 | * It's at least CS4231 | |
1775 | */ | |
1776 | ||
1777 | devc->chip_name = "CS4231"; | |
1778 | devc->model = MD_4231; | |
1779 | ||
1780 | /* | |
1781 | * It could be an AD1845 or CS4231A as well. | |
1782 | * CS4231 and AD1845 report the same revision info in I25 | |
1783 | * while the CS4231A reports different. | |
1784 | */ | |
1785 | ||
1786 | id = ad_read(devc, 25); | |
1787 | if ((id & 0xe7) == 0x80) /* Device busy??? */ | |
1788 | id = ad_read(devc, 25); | |
1789 | if ((id & 0xe7) == 0x80) /* Device still busy??? */ | |
1790 | id = ad_read(devc, 25); | |
1791 | DDB(printk("ad1848_detect() - step J (%02x/%02x)\n", id, ad_read(devc, 25))); | |
1792 | ||
1793 | if ((id & 0xe7) == 0x80) { | |
1794 | /* | |
1795 | * It must be a CS4231 or AD1845. The register I23 of | |
1796 | * CS4231 is undefined and it appears to be read only. | |
1797 | * AD1845 uses I23 for setting sample rate. Assume | |
1798 | * the chip is AD1845 if I23 is changeable. | |
1799 | */ | |
1800 | ||
1801 | unsigned char tmp = ad_read(devc, 23); | |
1802 | ad_write(devc, 23, ~tmp); | |
1803 | ||
1804 | if (interwave) | |
1805 | { | |
1806 | devc->model = MD_IWAVE; | |
1807 | devc->chip_name = "IWave"; | |
1808 | } | |
1809 | else if (ad_read(devc, 23) != tmp) /* AD1845 ? */ | |
1810 | { | |
1811 | devc->chip_name = "AD1845"; | |
1812 | devc->model = MD_1845; | |
1813 | } | |
1814 | else if (cs4248_flag) | |
1815 | { | |
1816 | if (ad_flags) | |
1817 | *ad_flags |= AD_F_CS4248; | |
1818 | devc->chip_name = "CS4248"; | |
1819 | devc->model = MD_1848; | |
1820 | ad_write(devc, 12, ad_read(devc, 12) & ~0x40); /* Mode2 off */ | |
1821 | } | |
1822 | ad_write(devc, 23, tmp); /* Restore */ | |
1823 | } | |
1824 | else | |
1825 | { | |
1826 | switch (id & 0x1f) { | |
1827 | case 3: /* CS4236/CS4235/CS42xB/CS4239 */ | |
1828 | { | |
1829 | int xid; | |
1830 | ad_write(devc, 12, ad_read(devc, 12) | 0x60); /* switch to mode 3 */ | |
1831 | ad_write(devc, 23, 0x9c); /* select extended register 25 */ | |
1832 | xid = inb(io_Indexed_Data(devc)); | |
1833 | ad_write(devc, 12, ad_read(devc, 12) & ~0x60); /* back to mode 0 */ | |
1834 | switch (xid & 0x1f) | |
1835 | { | |
1836 | case 0x00: | |
1837 | devc->chip_name = "CS4237B(B)"; | |
1838 | devc->model = MD_42xB; | |
1839 | break; | |
1840 | case 0x08: | |
1841 | /* Seems to be a 4238 ?? */ | |
1842 | devc->chip_name = "CS4238"; | |
1843 | devc->model = MD_42xB; | |
1844 | break; | |
1845 | case 0x09: | |
1846 | devc->chip_name = "CS4238B"; | |
1847 | devc->model = MD_42xB; | |
1848 | break; | |
1849 | case 0x0b: | |
1850 | devc->chip_name = "CS4236B"; | |
1851 | devc->model = MD_4236; | |
1852 | break; | |
1853 | case 0x10: | |
1854 | devc->chip_name = "CS4237B"; | |
1855 | devc->model = MD_42xB; | |
1856 | break; | |
1857 | case 0x1d: | |
1858 | devc->chip_name = "CS4235"; | |
1859 | devc->model = MD_4235; | |
1860 | break; | |
1861 | case 0x1e: | |
1862 | devc->chip_name = "CS4239"; | |
1863 | devc->model = MD_4239; | |
1864 | break; | |
1865 | default: | |
1866 | printk("Chip ident is %X.\n", xid&0x1F); | |
1867 | devc->chip_name = "CS42xx"; | |
1868 | devc->model = MD_4232; | |
1869 | break; | |
1870 | } | |
1871 | } | |
1872 | break; | |
1873 | ||
1874 | case 2: /* CS4232/CS4232A */ | |
1875 | devc->chip_name = "CS4232"; | |
1876 | devc->model = MD_4232; | |
1877 | break; | |
1878 | ||
1879 | case 0: | |
1880 | if ((id & 0xe0) == 0xa0) | |
1881 | { | |
1882 | devc->chip_name = "CS4231A"; | |
1883 | devc->model = MD_4231A; | |
1884 | } | |
1885 | else | |
1886 | { | |
1887 | devc->chip_name = "CS4321"; | |
1888 | devc->model = MD_4231; | |
1889 | } | |
1890 | break; | |
1891 | ||
1892 | default: /* maybe */ | |
1893 | DDB(printk("ad1848: I25 = %02x/%02x\n", ad_read(devc, 25), ad_read(devc, 25) & 0xe7)); | |
1894 | if (optiC930) | |
1895 | { | |
1896 | devc->chip_name = "82C930"; | |
1897 | devc->model = MD_C930; | |
1898 | } | |
1899 | else | |
1900 | { | |
1901 | devc->chip_name = "CS4231"; | |
1902 | devc->model = MD_4231; | |
1903 | } | |
1904 | } | |
1905 | } | |
1906 | } | |
1907 | ad_write(devc, 25, tmp1); /* Restore bits */ | |
1908 | ||
1909 | DDB(printk("ad1848_detect() - step K\n")); | |
1910 | } | |
1911 | } else if (tmp1 == 0x0a) { | |
1912 | /* | |
1913 | * Is it perhaps a SoundPro CMI8330? | |
1914 | * If so, then we should be able to change indirect registers | |
1915 | * greater than I15 after activating MODE2, even though reading | |
1916 | * back I12 does not show it. | |
1917 | */ | |
1918 | ||
1919 | /* | |
1920 | * Let's try comparing register values | |
1921 | */ | |
1922 | for (i = 0; i < 16; i++) { | |
1923 | if ((tmp1 = ad_read(devc, i)) != (tmp2 = ad_read(devc, i + 16))) { | |
1924 | DDB(printk("ad1848 detect step H(%d/%x/%x) - SoundPro chip?\n", i, tmp1, tmp2)); | |
1925 | soundpro = 1; | |
1926 | devc->chip_name = "SoundPro CMI 8330"; | |
1927 | break; | |
1928 | } | |
1929 | } | |
1930 | } | |
1931 | ||
1932 | DDB(printk("ad1848_detect() - step L\n")); | |
1933 | if (ad_flags) | |
1934 | { | |
1935 | if (devc->model != MD_1848) | |
1936 | *ad_flags |= AD_F_CS4231; | |
1937 | } | |
1938 | DDB(printk("ad1848_detect() - Detected OK\n")); | |
1939 | ||
1940 | if (devc->model == MD_1848 && ad1847_flag) | |
1941 | devc->chip_name = "AD1847"; | |
1942 | ||
1943 | ||
1944 | if (sscape_flag == 1) | |
1945 | devc->model = MD_1845_SSCAPE; | |
1946 | ||
1947 | return 1; | |
1948 | } | |
1949 | ||
1950 | int ad1848_init (char *name, struct resource *ports, int irq, int dma_playback, | |
1951 | int dma_capture, int share_dma, int *osp, struct module *owner) | |
1952 | { | |
1953 | /* | |
1954 | * NOTE! If irq < 0, there is another driver which has allocated the IRQ | |
1955 | * so that this driver doesn't need to allocate/deallocate it. | |
1956 | * The actually used IRQ is ABS(irq). | |
1957 | */ | |
1958 | ||
1959 | int my_dev; | |
1960 | char dev_name[100]; | |
1961 | int e; | |
1962 | ||
1963 | ad1848_info *devc = &adev_info[nr_ad1848_devs]; | |
1964 | ||
1965 | ad1848_port_info *portc = NULL; | |
1966 | ||
1967 | devc->irq = (irq > 0) ? irq : 0; | |
1968 | devc->open_mode = 0; | |
1969 | devc->timer_ticks = 0; | |
1970 | devc->dma1 = dma_playback; | |
1971 | devc->dma2 = dma_capture; | |
1972 | devc->subtype = cfg.card_subtype; | |
1973 | devc->audio_flags = DMA_AUTOMODE; | |
1974 | devc->playback_dev = devc->record_dev = 0; | |
1975 | if (name != NULL) | |
1976 | devc->name = name; | |
1977 | ||
1978 | if (name != NULL && name[0] != 0) | |
1979 | sprintf(dev_name, | |
1980 | "%s (%s)", name, devc->chip_name); | |
1981 | else | |
1982 | sprintf(dev_name, | |
1983 | "Generic audio codec (%s)", devc->chip_name); | |
1984 | ||
1985 | rename_region(ports, devc->name); | |
1986 | ||
1987 | conf_printf2(dev_name, devc->base, devc->irq, dma_playback, dma_capture); | |
1988 | ||
1989 | if (devc->model == MD_1848 || devc->model == MD_C930) | |
1990 | devc->audio_flags |= DMA_HARDSTOP; | |
1991 | ||
1992 | if (devc->model > MD_1848) | |
1993 | { | |
1994 | if (devc->dma1 == devc->dma2 || devc->dma2 == -1 || devc->dma1 == -1) | |
1995 | devc->audio_flags &= ~DMA_DUPLEX; | |
1996 | else | |
1997 | devc->audio_flags |= DMA_DUPLEX; | |
1998 | } | |
1999 | ||
2000 | portc = (ad1848_port_info *) kmalloc(sizeof(ad1848_port_info), GFP_KERNEL); | |
2001 | if(portc==NULL) { | |
2002 | release_region(devc->base, 4); | |
2003 | return -1; | |
2004 | } | |
2005 | ||
2006 | if ((my_dev = sound_install_audiodrv(AUDIO_DRIVER_VERSION, | |
2007 | dev_name, | |
2008 | &ad1848_audio_driver, | |
2009 | sizeof(struct audio_driver), | |
2010 | devc->audio_flags, | |
2011 | ad_format_mask[devc->model], | |
2012 | devc, | |
2013 | dma_playback, | |
2014 | dma_capture)) < 0) | |
2015 | { | |
2016 | release_region(devc->base, 4); | |
2017 | kfree(portc); | |
2018 | return -1; | |
2019 | } | |
2020 | ||
2021 | audio_devs[my_dev]->portc = portc; | |
2022 | audio_devs[my_dev]->mixer_dev = -1; | |
2023 | if (owner) | |
2024 | audio_devs[my_dev]->d->owner = owner; | |
2025 | memset((char *) portc, 0, sizeof(*portc)); | |
2026 | ||
2027 | nr_ad1848_devs++; | |
2028 | ||
2029 | devc->pmdev = pm_register(PM_ISA_DEV, my_dev, ad1848_pm_callback); | |
2030 | if (devc->pmdev) | |
2031 | devc->pmdev->data = devc; | |
2032 | ||
2033 | ad1848_init_hw(devc); | |
2034 | ||
2035 | if (irq > 0) | |
2036 | { | |
2037 | devc->dev_no = my_dev; | |
2038 | if (request_irq(devc->irq, adintr, 0, devc->name, (void *)my_dev) < 0) | |
2039 | { | |
2040 | printk(KERN_WARNING "ad1848: Unable to allocate IRQ\n"); | |
2041 | /* Don't free it either then.. */ | |
2042 | devc->irq = 0; | |
2043 | } | |
2044 | if (capabilities[devc->model].flags & CAP_F_TIMER) | |
2045 | { | |
2046 | #ifndef CONFIG_SMP | |
2047 | int x; | |
2048 | unsigned char tmp = ad_read(devc, 16); | |
2049 | #endif | |
2050 | ||
2051 | devc->timer_ticks = 0; | |
2052 | ||
2053 | ad_write(devc, 21, 0x00); /* Timer MSB */ | |
2054 | ad_write(devc, 20, 0x10); /* Timer LSB */ | |
2055 | #ifndef CONFIG_SMP | |
2056 | ad_write(devc, 16, tmp | 0x40); /* Enable timer */ | |
2057 | for (x = 0; x < 100000 && devc->timer_ticks == 0; x++); | |
2058 | ad_write(devc, 16, tmp & ~0x40); /* Disable timer */ | |
2059 | ||
2060 | if (devc->timer_ticks == 0) | |
2061 | printk(KERN_WARNING "ad1848: Interrupt test failed (IRQ%d)\n", irq); | |
2062 | else | |
2063 | { | |
2064 | DDB(printk("Interrupt test OK\n")); | |
2065 | devc->irq_ok = 1; | |
2066 | } | |
2067 | #else | |
2068 | devc->irq_ok = 1; | |
2069 | #endif | |
2070 | } | |
2071 | else | |
2072 | devc->irq_ok = 1; /* Couldn't test. assume it's OK */ | |
2073 | } else if (irq < 0) | |
2074 | irq2dev[-irq] = devc->dev_no = my_dev; | |
2075 | ||
2076 | #ifndef EXCLUDE_TIMERS | |
2077 | if ((capabilities[devc->model].flags & CAP_F_TIMER) && | |
2078 | devc->irq_ok) | |
2079 | ad1848_tmr_install(my_dev); | |
2080 | #endif | |
2081 | ||
2082 | if (!share_dma) | |
2083 | { | |
2084 | if (sound_alloc_dma(dma_playback, devc->name)) | |
2085 | printk(KERN_WARNING "ad1848.c: Can't allocate DMA%d\n", dma_playback); | |
2086 | ||
2087 | if (dma_capture != dma_playback) | |
2088 | if (sound_alloc_dma(dma_capture, devc->name)) | |
2089 | printk(KERN_WARNING "ad1848.c: Can't allocate DMA%d\n", dma_capture); | |
2090 | } | |
2091 | ||
2092 | if ((e = sound_install_mixer(MIXER_DRIVER_VERSION, | |
2093 | dev_name, | |
2094 | &ad1848_mixer_operations, | |
2095 | sizeof(struct mixer_operations), | |
2096 | devc)) >= 0) | |
2097 | { | |
2098 | audio_devs[my_dev]->mixer_dev = e; | |
2099 | if (owner) | |
2100 | mixer_devs[e]->owner = owner; | |
2101 | } | |
2102 | return my_dev; | |
2103 | } | |
2104 | ||
2105 | int ad1848_control(int cmd, int arg) | |
2106 | { | |
2107 | ad1848_info *devc; | |
2108 | unsigned long flags; | |
2109 | ||
2110 | if (nr_ad1848_devs < 1) | |
2111 | return -ENODEV; | |
2112 | ||
2113 | devc = &adev_info[nr_ad1848_devs - 1]; | |
2114 | ||
2115 | switch (cmd) | |
2116 | { | |
2117 | case AD1848_SET_XTAL: /* Change clock frequency of AD1845 (only ) */ | |
2118 | if (devc->model != MD_1845 || devc->model != MD_1845_SSCAPE) | |
2119 | return -EINVAL; | |
2120 | spin_lock_irqsave(&devc->lock,flags); | |
2121 | ad_enter_MCE(devc); | |
2122 | ad_write(devc, 29, (ad_read(devc, 29) & 0x1f) | (arg << 5)); | |
2123 | ad_leave_MCE(devc); | |
2124 | spin_unlock_irqrestore(&devc->lock,flags); | |
2125 | break; | |
2126 | ||
2127 | case AD1848_MIXER_REROUTE: | |
2128 | { | |
2129 | int o = (arg >> 8) & 0xff; | |
2130 | int n = arg & 0xff; | |
2131 | ||
2132 | if (o < 0 || o >= SOUND_MIXER_NRDEVICES) | |
2133 | return -EINVAL; | |
2134 | ||
2135 | if (!(devc->supported_devices & (1 << o)) && | |
2136 | !(devc->supported_rec_devices & (1 << o))) | |
2137 | return -EINVAL; | |
2138 | ||
2139 | if (n == SOUND_MIXER_NONE) | |
2140 | { /* Just hide this control */ | |
2141 | ad1848_mixer_set(devc, o, 0); /* Shut up it */ | |
2142 | devc->supported_devices &= ~(1 << o); | |
2143 | devc->supported_rec_devices &= ~(1 << o); | |
2144 | break; | |
2145 | } | |
2146 | ||
2147 | /* Make the mixer control identified by o to appear as n */ | |
2148 | if (n < 0 || n >= SOUND_MIXER_NRDEVICES) | |
2149 | return -EINVAL; | |
2150 | ||
2151 | devc->mixer_reroute[n] = o; /* Rename the control */ | |
2152 | if (devc->supported_devices & (1 << o)) | |
2153 | devc->supported_devices |= (1 << n); | |
2154 | if (devc->supported_rec_devices & (1 << o)) | |
2155 | devc->supported_rec_devices |= (1 << n); | |
2156 | ||
2157 | devc->supported_devices &= ~(1 << o); | |
2158 | devc->supported_rec_devices &= ~(1 << o); | |
2159 | } | |
2160 | break; | |
2161 | } | |
2162 | return 0; | |
2163 | } | |
2164 | ||
2165 | void ad1848_unload(int io_base, int irq, int dma_playback, int dma_capture, int share_dma) | |
2166 | { | |
2167 | int i, mixer, dev = 0; | |
2168 | ad1848_info *devc = NULL; | |
2169 | ||
2170 | for (i = 0; devc == NULL && i < nr_ad1848_devs; i++) | |
2171 | { | |
2172 | if (adev_info[i].base == io_base) | |
2173 | { | |
2174 | devc = &adev_info[i]; | |
2175 | dev = devc->dev_no; | |
2176 | } | |
2177 | } | |
2178 | ||
2179 | if (devc != NULL) | |
2180 | { | |
2181 | if(audio_devs[dev]->portc!=NULL) | |
2182 | kfree(audio_devs[dev]->portc); | |
2183 | release_region(devc->base, 4); | |
2184 | ||
2185 | if (!share_dma) | |
2186 | { | |
2187 | if (devc->irq > 0) /* There is no point in freeing irq, if it wasn't allocated */ | |
2188 | free_irq(devc->irq, (void *)devc->dev_no); | |
2189 | ||
2190 | sound_free_dma(dma_playback); | |
2191 | ||
2192 | if (dma_playback != dma_capture) | |
2193 | sound_free_dma(dma_capture); | |
2194 | ||
2195 | } | |
2196 | mixer = audio_devs[devc->dev_no]->mixer_dev; | |
2197 | if(mixer>=0) | |
2198 | sound_unload_mixerdev(mixer); | |
2199 | ||
2200 | if (devc->pmdev) | |
2201 | pm_unregister(devc->pmdev); | |
2202 | ||
2203 | nr_ad1848_devs--; | |
2204 | for ( ; i < nr_ad1848_devs ; i++) | |
2205 | adev_info[i] = adev_info[i+1]; | |
2206 | } | |
2207 | else | |
2208 | printk(KERN_ERR "ad1848: Can't find device to be unloaded. Base=%x\n", io_base); | |
2209 | } | |
2210 | ||
2211 | irqreturn_t adintr(int irq, void *dev_id, struct pt_regs *dummy) | |
2212 | { | |
2213 | unsigned char status; | |
2214 | ad1848_info *devc; | |
2215 | int dev; | |
2216 | int alt_stat = 0xff; | |
2217 | unsigned char c930_stat = 0; | |
2218 | int cnt = 0; | |
2219 | ||
2220 | dev = (int)dev_id; | |
2221 | devc = (ad1848_info *) audio_devs[dev]->devc; | |
2222 | ||
2223 | interrupt_again: /* Jump back here if int status doesn't reset */ | |
2224 | ||
2225 | status = inb(io_Status(devc)); | |
2226 | ||
2227 | if (status == 0x80) | |
2228 | printk(KERN_DEBUG "adintr: Why?\n"); | |
2229 | if (devc->model == MD_1848) | |
2230 | outb((0), io_Status(devc)); /* Clear interrupt status */ | |
2231 | ||
2232 | if (status & 0x01) | |
2233 | { | |
2234 | if (devc->model == MD_C930) | |
2235 | { /* 82C930 has interrupt status register in MAD16 register MC11 */ | |
2236 | ||
2237 | spin_lock(&devc->lock); | |
2238 | ||
2239 | /* 0xe0e is C930 address port | |
2240 | * 0xe0f is C930 data port | |
2241 | */ | |
2242 | outb(11, 0xe0e); | |
2243 | c930_stat = inb(0xe0f); | |
2244 | outb((~c930_stat), 0xe0f); | |
2245 | ||
2246 | spin_unlock(&devc->lock); | |
2247 | ||
2248 | alt_stat = (c930_stat << 2) & 0x30; | |
2249 | } | |
2250 | else if (devc->model != MD_1848) | |
2251 | { | |
2252 | spin_lock(&devc->lock); | |
2253 | alt_stat = ad_read(devc, 24); | |
2254 | ad_write(devc, 24, ad_read(devc, 24) & ~alt_stat); /* Selective ack */ | |
2255 | spin_unlock(&devc->lock); | |
2256 | } | |
2257 | ||
2258 | if ((devc->open_mode & OPEN_READ) && (devc->audio_mode & PCM_ENABLE_INPUT) && (alt_stat & 0x20)) | |
2259 | { | |
2260 | DMAbuf_inputintr(devc->record_dev); | |
2261 | } | |
2262 | if ((devc->open_mode & OPEN_WRITE) && (devc->audio_mode & PCM_ENABLE_OUTPUT) && | |
2263 | (alt_stat & 0x10)) | |
2264 | { | |
2265 | DMAbuf_outputintr(devc->playback_dev, 1); | |
2266 | } | |
2267 | if (devc->model != MD_1848 && (alt_stat & 0x40)) /* Timer interrupt */ | |
2268 | { | |
2269 | devc->timer_ticks++; | |
2270 | #ifndef EXCLUDE_TIMERS | |
2271 | if (timer_installed == dev && devc->timer_running) | |
2272 | sound_timer_interrupt(); | |
2273 | #endif | |
2274 | } | |
2275 | } | |
2276 | /* | |
2277 | * Sometimes playback or capture interrupts occur while a timer interrupt | |
2278 | * is being handled. The interrupt will not be retriggered if we don't | |
2279 | * handle it now. Check if an interrupt is still pending and restart | |
2280 | * the handler in this case. | |
2281 | */ | |
2282 | if (inb(io_Status(devc)) & 0x01 && cnt++ < 4) | |
2283 | { | |
2284 | goto interrupt_again; | |
2285 | } | |
2286 | return IRQ_HANDLED; | |
2287 | } | |
2288 | ||
2289 | /* | |
2290 | * Experimental initialization sequence for the integrated sound system | |
2291 | * of the Compaq Deskpro M. | |
2292 | */ | |
2293 | ||
2294 | static int init_deskpro_m(struct address_info *hw_config) | |
2295 | { | |
2296 | unsigned char tmp; | |
2297 | ||
2298 | if ((tmp = inb(0xc44)) == 0xff) | |
2299 | { | |
2300 | DDB(printk("init_deskpro_m: Dead port 0xc44\n")); | |
2301 | return 0; | |
2302 | } | |
2303 | ||
2304 | outb(0x10, 0xc44); | |
2305 | outb(0x40, 0xc45); | |
2306 | outb(0x00, 0xc46); | |
2307 | outb(0xe8, 0xc47); | |
2308 | outb(0x14, 0xc44); | |
2309 | outb(0x40, 0xc45); | |
2310 | outb(0x00, 0xc46); | |
2311 | outb(0xe8, 0xc47); | |
2312 | outb(0x10, 0xc44); | |
2313 | ||
2314 | return 1; | |
2315 | } | |
2316 | ||
2317 | /* | |
2318 | * Experimental initialization sequence for the integrated sound system | |
2319 | * of Compaq Deskpro XL. | |
2320 | */ | |
2321 | ||
2322 | static int init_deskpro(struct address_info *hw_config) | |
2323 | { | |
2324 | unsigned char tmp; | |
2325 | ||
2326 | if ((tmp = inb(0xc44)) == 0xff) | |
2327 | { | |
2328 | DDB(printk("init_deskpro: Dead port 0xc44\n")); | |
2329 | return 0; | |
2330 | } | |
2331 | outb((tmp | 0x04), 0xc44); /* Select bank 1 */ | |
2332 | if (inb(0xc44) != 0x04) | |
2333 | { | |
2334 | DDB(printk("init_deskpro: Invalid bank1 signature in port 0xc44\n")); | |
2335 | return 0; | |
2336 | } | |
2337 | /* | |
2338 | * OK. It looks like a Deskpro so let's proceed. | |
2339 | */ | |
2340 | ||
2341 | /* | |
2342 | * I/O port 0xc44 Audio configuration register. | |
2343 | * | |
2344 | * bits 0xc0: Audio revision bits | |
2345 | * 0x00 = Compaq Business Audio | |
2346 | * 0x40 = MS Sound System Compatible (reset default) | |
2347 | * 0x80 = Reserved | |
2348 | * 0xc0 = Reserved | |
2349 | * bit 0x20: No Wait State Enable | |
2350 | * 0x00 = Disabled (reset default, DMA mode) | |
2351 | * 0x20 = Enabled (programmed I/O mode) | |
2352 | * bit 0x10: MS Sound System Decode Enable | |
2353 | * 0x00 = Decoding disabled (reset default) | |
2354 | * 0x10 = Decoding enabled | |
2355 | * bit 0x08: FM Synthesis Decode Enable | |
2356 | * 0x00 = Decoding Disabled (reset default) | |
2357 | * 0x08 = Decoding enabled | |
2358 | * bit 0x04 Bank select | |
2359 | * 0x00 = Bank 0 | |
2360 | * 0x04 = Bank 1 | |
2361 | * bits 0x03 MSS Base address | |
2362 | * 0x00 = 0x530 (reset default) | |
2363 | * 0x01 = 0x604 | |
2364 | * 0x02 = 0xf40 | |
2365 | * 0x03 = 0xe80 | |
2366 | */ | |
2367 | ||
2368 | #ifdef DEBUGXL | |
2369 | /* Debug printing */ | |
2370 | printk("Port 0xc44 (before): "); | |
2371 | outb((tmp & ~0x04), 0xc44); | |
2372 | printk("%02x ", inb(0xc44)); | |
2373 | outb((tmp | 0x04), 0xc44); | |
2374 | printk("%02x\n", inb(0xc44)); | |
2375 | #endif | |
2376 | ||
2377 | /* Set bank 1 of the register */ | |
2378 | tmp = 0x58; /* MSS Mode, MSS&FM decode enabled */ | |
2379 | ||
2380 | switch (hw_config->io_base) | |
2381 | { | |
2382 | case 0x530: | |
2383 | tmp |= 0x00; | |
2384 | break; | |
2385 | case 0x604: | |
2386 | tmp |= 0x01; | |
2387 | break; | |
2388 | case 0xf40: | |
2389 | tmp |= 0x02; | |
2390 | break; | |
2391 | case 0xe80: | |
2392 | tmp |= 0x03; | |
2393 | break; | |
2394 | default: | |
2395 | DDB(printk("init_deskpro: Invalid MSS port %x\n", hw_config->io_base)); | |
2396 | return 0; | |
2397 | } | |
2398 | outb((tmp & ~0x04), 0xc44); /* Write to bank=0 */ | |
2399 | ||
2400 | #ifdef DEBUGXL | |
2401 | /* Debug printing */ | |
2402 | printk("Port 0xc44 (after): "); | |
2403 | outb((tmp & ~0x04), 0xc44); /* Select bank=0 */ | |
2404 | printk("%02x ", inb(0xc44)); | |
2405 | outb((tmp | 0x04), 0xc44); /* Select bank=1 */ | |
2406 | printk("%02x\n", inb(0xc44)); | |
2407 | #endif | |
2408 | ||
2409 | /* | |
2410 | * I/O port 0xc45 FM Address Decode/MSS ID Register. | |
2411 | * | |
2412 | * bank=0, bits 0xfe: FM synthesis Decode Compare bits 7:1 (default=0x88) | |
2413 | * bank=0, bit 0x01: SBIC Power Control Bit | |
2414 | * 0x00 = Powered up | |
2415 | * 0x01 = Powered down | |
2416 | * bank=1, bits 0xfc: MSS ID (default=0x40) | |
2417 | */ | |
2418 | ||
2419 | #ifdef DEBUGXL | |
2420 | /* Debug printing */ | |
2421 | printk("Port 0xc45 (before): "); | |
2422 | outb((tmp & ~0x04), 0xc44); /* Select bank=0 */ | |
2423 | printk("%02x ", inb(0xc45)); | |
2424 | outb((tmp | 0x04), 0xc44); /* Select bank=1 */ | |
2425 | printk("%02x\n", inb(0xc45)); | |
2426 | #endif | |
2427 | ||
2428 | outb((tmp & ~0x04), 0xc44); /* Select bank=0 */ | |
2429 | outb((0x88), 0xc45); /* FM base 7:0 = 0x88 */ | |
2430 | outb((tmp | 0x04), 0xc44); /* Select bank=1 */ | |
2431 | outb((0x10), 0xc45); /* MSS ID = 0x10 (MSS port returns 0x04) */ | |
2432 | ||
2433 | #ifdef DEBUGXL | |
2434 | /* Debug printing */ | |
2435 | printk("Port 0xc45 (after): "); | |
2436 | outb((tmp & ~0x04), 0xc44); /* Select bank=0 */ | |
2437 | printk("%02x ", inb(0xc45)); | |
2438 | outb((tmp | 0x04), 0xc44); /* Select bank=1 */ | |
2439 | printk("%02x\n", inb(0xc45)); | |
2440 | #endif | |
2441 | ||
2442 | ||
2443 | /* | |
2444 | * I/O port 0xc46 FM Address Decode/Address ASIC Revision Register. | |
2445 | * | |
2446 | * bank=0, bits 0xff: FM synthesis Decode Compare bits 15:8 (default=0x03) | |
2447 | * bank=1, bits 0xff: Audio addressing ASIC id | |
2448 | */ | |
2449 | ||
2450 | #ifdef DEBUGXL | |
2451 | /* Debug printing */ | |
2452 | printk("Port 0xc46 (before): "); | |
2453 | outb((tmp & ~0x04), 0xc44); /* Select bank=0 */ | |
2454 | printk("%02x ", inb(0xc46)); | |
2455 | outb((tmp | 0x04), 0xc44); /* Select bank=1 */ | |
2456 | printk("%02x\n", inb(0xc46)); | |
2457 | #endif | |
2458 | ||
2459 | outb((tmp & ~0x04), 0xc44); /* Select bank=0 */ | |
2460 | outb((0x03), 0xc46); /* FM base 15:8 = 0x03 */ | |
2461 | outb((tmp | 0x04), 0xc44); /* Select bank=1 */ | |
2462 | outb((0x11), 0xc46); /* ASIC ID = 0x11 */ | |
2463 | ||
2464 | #ifdef DEBUGXL | |
2465 | /* Debug printing */ | |
2466 | printk("Port 0xc46 (after): "); | |
2467 | outb((tmp & ~0x04), 0xc44); /* Select bank=0 */ | |
2468 | printk("%02x ", inb(0xc46)); | |
2469 | outb((tmp | 0x04), 0xc44); /* Select bank=1 */ | |
2470 | printk("%02x\n", inb(0xc46)); | |
2471 | #endif | |
2472 | ||
2473 | /* | |
2474 | * I/O port 0xc47 FM Address Decode Register. | |
2475 | * | |
2476 | * bank=0, bits 0xff: Decode enable selection for various FM address bits | |
2477 | * bank=1, bits 0xff: Reserved | |
2478 | */ | |
2479 | ||
2480 | #ifdef DEBUGXL | |
2481 | /* Debug printing */ | |
2482 | printk("Port 0xc47 (before): "); | |
2483 | outb((tmp & ~0x04), 0xc44); /* Select bank=0 */ | |
2484 | printk("%02x ", inb(0xc47)); | |
2485 | outb((tmp | 0x04), 0xc44); /* Select bank=1 */ | |
2486 | printk("%02x\n", inb(0xc47)); | |
2487 | #endif | |
2488 | ||
2489 | outb((tmp & ~0x04), 0xc44); /* Select bank=0 */ | |
2490 | outb((0x7c), 0xc47); /* FM decode enable bits = 0x7c */ | |
2491 | outb((tmp | 0x04), 0xc44); /* Select bank=1 */ | |
2492 | outb((0x00), 0xc47); /* Reserved bank1 = 0x00 */ | |
2493 | ||
2494 | #ifdef DEBUGXL | |
2495 | /* Debug printing */ | |
2496 | printk("Port 0xc47 (after): "); | |
2497 | outb((tmp & ~0x04), 0xc44); /* Select bank=0 */ | |
2498 | printk("%02x ", inb(0xc47)); | |
2499 | outb((tmp | 0x04), 0xc44); /* Select bank=1 */ | |
2500 | printk("%02x\n", inb(0xc47)); | |
2501 | #endif | |
2502 | ||
2503 | /* | |
2504 | * I/O port 0xc6f = Audio Disable Function Register | |
2505 | */ | |
2506 | ||
2507 | #ifdef DEBUGXL | |
2508 | printk("Port 0xc6f (before) = %02x\n", inb(0xc6f)); | |
2509 | #endif | |
2510 | ||
2511 | outb((0x80), 0xc6f); | |
2512 | ||
2513 | #ifdef DEBUGXL | |
2514 | printk("Port 0xc6f (after) = %02x\n", inb(0xc6f)); | |
2515 | #endif | |
2516 | ||
2517 | return 1; | |
2518 | } | |
2519 | ||
2520 | int probe_ms_sound(struct address_info *hw_config, struct resource *ports) | |
2521 | { | |
2522 | unsigned char tmp; | |
2523 | ||
2524 | DDB(printk("Entered probe_ms_sound(%x, %d)\n", hw_config->io_base, hw_config->card_subtype)); | |
2525 | ||
2526 | if (hw_config->card_subtype == 1) /* Has no IRQ/DMA registers */ | |
2527 | { | |
2528 | /* check_opl3(0x388, hw_config); */ | |
2529 | return ad1848_detect(ports, NULL, hw_config->osp); | |
2530 | } | |
2531 | ||
2532 | if (deskpro_xl && hw_config->card_subtype == 2) /* Compaq Deskpro XL */ | |
2533 | { | |
2534 | if (!init_deskpro(hw_config)) | |
2535 | return 0; | |
2536 | } | |
2537 | ||
2538 | if (deskpro_m) /* Compaq Deskpro M */ | |
2539 | { | |
2540 | if (!init_deskpro_m(hw_config)) | |
2541 | return 0; | |
2542 | } | |
2543 | ||
2544 | /* | |
2545 | * Check if the IO port returns valid signature. The original MS Sound | |
2546 | * system returns 0x04 while some cards (AudioTrix Pro for example) | |
2547 | * return 0x00 or 0x0f. | |
2548 | */ | |
2549 | ||
2550 | if ((tmp = inb(hw_config->io_base + 3)) == 0xff) /* Bus float */ | |
2551 | { | |
2552 | int ret; | |
2553 | ||
2554 | DDB(printk("I/O address is inactive (%x)\n", tmp)); | |
2555 | if (!(ret = ad1848_detect(ports, NULL, hw_config->osp))) | |
2556 | return 0; | |
2557 | return 1; | |
2558 | } | |
2559 | DDB(printk("MSS signature = %x\n", tmp & 0x3f)); | |
2560 | if ((tmp & 0x3f) != 0x04 && | |
2561 | (tmp & 0x3f) != 0x0f && | |
2562 | (tmp & 0x3f) != 0x00) | |
2563 | { | |
2564 | int ret; | |
2565 | ||
2566 | MDB(printk(KERN_ERR "No MSS signature detected on port 0x%x (0x%x)\n", hw_config->io_base, (int) inb(hw_config->io_base + 3))); | |
2567 | DDB(printk("Trying to detect codec anyway but IRQ/DMA may not work\n")); | |
2568 | if (!(ret = ad1848_detect(ports, NULL, hw_config->osp))) | |
2569 | return 0; | |
2570 | ||
2571 | hw_config->card_subtype = 1; | |
2572 | return 1; | |
2573 | } | |
2574 | if ((hw_config->irq != 5) && | |
2575 | (hw_config->irq != 7) && | |
2576 | (hw_config->irq != 9) && | |
2577 | (hw_config->irq != 10) && | |
2578 | (hw_config->irq != 11) && | |
2579 | (hw_config->irq != 12)) | |
2580 | { | |
2581 | printk(KERN_ERR "MSS: Bad IRQ %d\n", hw_config->irq); | |
2582 | return 0; | |
2583 | } | |
2584 | if (hw_config->dma != 0 && hw_config->dma != 1 && hw_config->dma != 3) | |
2585 | { | |
2586 | printk(KERN_ERR "MSS: Bad DMA %d\n", hw_config->dma); | |
2587 | return 0; | |
2588 | } | |
2589 | /* | |
2590 | * Check that DMA0 is not in use with a 8 bit board. | |
2591 | */ | |
2592 | ||
2593 | if (hw_config->dma == 0 && inb(hw_config->io_base + 3) & 0x80) | |
2594 | { | |
2595 | printk(KERN_ERR "MSS: Can't use DMA0 with a 8 bit card/slot\n"); | |
2596 | return 0; | |
2597 | } | |
2598 | if (hw_config->irq > 7 && hw_config->irq != 9 && inb(hw_config->io_base + 3) & 0x80) | |
2599 | { | |
2600 | printk(KERN_ERR "MSS: Can't use IRQ%d with a 8 bit card/slot\n", hw_config->irq); | |
2601 | return 0; | |
2602 | } | |
2603 | return ad1848_detect(ports, NULL, hw_config->osp); | |
2604 | } | |
2605 | ||
2606 | void attach_ms_sound(struct address_info *hw_config, struct resource *ports, struct module *owner) | |
2607 | { | |
2608 | static signed char interrupt_bits[12] = | |
2609 | { | |
2610 | -1, -1, -1, -1, -1, 0x00, -1, 0x08, -1, 0x10, 0x18, 0x20 | |
2611 | }; | |
2612 | signed char bits; | |
2613 | char dma2_bit = 0; | |
2614 | ||
2615 | static char dma_bits[4] = | |
2616 | { | |
2617 | 1, 2, 0, 3 | |
2618 | }; | |
2619 | ||
2620 | int config_port = hw_config->io_base + 0; | |
2621 | int version_port = hw_config->io_base + 3; | |
2622 | int dma = hw_config->dma; | |
2623 | int dma2 = hw_config->dma2; | |
2624 | ||
2625 | if (hw_config->card_subtype == 1) /* Has no IRQ/DMA registers */ | |
2626 | { | |
2627 | hw_config->slots[0] = ad1848_init("MS Sound System", ports, | |
2628 | hw_config->irq, | |
2629 | hw_config->dma, | |
2630 | hw_config->dma2, 0, | |
2631 | hw_config->osp, | |
2632 | owner); | |
2633 | return; | |
2634 | } | |
2635 | /* | |
2636 | * Set the IRQ and DMA addresses. | |
2637 | */ | |
2638 | ||
2639 | bits = interrupt_bits[hw_config->irq]; | |
2640 | if (bits == -1) | |
2641 | { | |
2642 | printk(KERN_ERR "MSS: Bad IRQ %d\n", hw_config->irq); | |
2643 | release_region(ports->start, 4); | |
2644 | release_region(ports->start - 4, 4); | |
2645 | return; | |
2646 | } | |
2647 | outb((bits | 0x40), config_port); | |
2648 | if ((inb(version_port) & 0x40) == 0) | |
2649 | printk(KERN_ERR "[MSS: IRQ Conflict?]\n"); | |
2650 | ||
2651 | /* | |
2652 | * Handle the capture DMA channel | |
2653 | */ | |
2654 | ||
2655 | if (dma2 != -1 && dma2 != dma) | |
2656 | { | |
2657 | if (!((dma == 0 && dma2 == 1) || | |
2658 | (dma == 1 && dma2 == 0) || | |
2659 | (dma == 3 && dma2 == 0))) | |
2660 | { /* Unsupported combination. Try to swap channels */ | |
2661 | int tmp = dma; | |
2662 | ||
2663 | dma = dma2; | |
2664 | dma2 = tmp; | |
2665 | } | |
2666 | if ((dma == 0 && dma2 == 1) || | |
2667 | (dma == 1 && dma2 == 0) || | |
2668 | (dma == 3 && dma2 == 0)) | |
2669 | { | |
2670 | dma2_bit = 0x04; /* Enable capture DMA */ | |
2671 | } | |
2672 | else | |
2673 | { | |
2674 | printk(KERN_WARNING "MSS: Invalid capture DMA\n"); | |
2675 | dma2 = dma; | |
2676 | } | |
2677 | } | |
2678 | else | |
2679 | { | |
2680 | dma2 = dma; | |
2681 | } | |
2682 | ||
2683 | hw_config->dma = dma; | |
2684 | hw_config->dma2 = dma2; | |
2685 | ||
2686 | outb((bits | dma_bits[dma] | dma2_bit), config_port); /* Write IRQ+DMA setup */ | |
2687 | ||
2688 | hw_config->slots[0] = ad1848_init("MS Sound System", ports, | |
2689 | hw_config->irq, | |
2690 | dma, dma2, 0, | |
2691 | hw_config->osp, | |
2692 | THIS_MODULE); | |
2693 | } | |
2694 | ||
2695 | void unload_ms_sound(struct address_info *hw_config) | |
2696 | { | |
2697 | ad1848_unload(hw_config->io_base + 4, | |
2698 | hw_config->irq, | |
2699 | hw_config->dma, | |
2700 | hw_config->dma2, 0); | |
2701 | sound_unload_audiodev(hw_config->slots[0]); | |
2702 | release_region(hw_config->io_base, 4); | |
2703 | } | |
2704 | ||
2705 | #ifndef EXCLUDE_TIMERS | |
2706 | ||
2707 | /* | |
2708 | * Timer stuff (for /dev/music). | |
2709 | */ | |
2710 | ||
2711 | static unsigned int current_interval; | |
2712 | ||
2713 | static unsigned int ad1848_tmr_start(int dev, unsigned int usecs) | |
2714 | { | |
2715 | unsigned long flags; | |
2716 | ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; | |
2717 | unsigned long xtal_nsecs; /* nanoseconds per xtal oscillator tick */ | |
2718 | unsigned long divider; | |
2719 | ||
2720 | spin_lock_irqsave(&devc->lock,flags); | |
2721 | ||
2722 | /* | |
2723 | * Length of the timer interval (in nanoseconds) depends on the | |
2724 | * selected crystal oscillator. Check this from bit 0x01 of I8. | |
2725 | * | |
2726 | * AD1845 has just one oscillator which has cycle time of 10.050 us | |
2727 | * (when a 24.576 MHz xtal oscillator is used). | |
2728 | * | |
2729 | * Convert requested interval to nanoseconds before computing | |
2730 | * the timer divider. | |
2731 | */ | |
2732 | ||
2733 | if (devc->model == MD_1845 || devc->model == MD_1845_SSCAPE) | |
2734 | xtal_nsecs = 10050; | |
2735 | else if (ad_read(devc, 8) & 0x01) | |
2736 | xtal_nsecs = 9920; | |
2737 | else | |
2738 | xtal_nsecs = 9969; | |
2739 | ||
2740 | divider = (usecs * 1000 + xtal_nsecs / 2) / xtal_nsecs; | |
2741 | ||
2742 | if (divider < 100) /* Don't allow shorter intervals than about 1ms */ | |
2743 | divider = 100; | |
2744 | ||
2745 | if (divider > 65535) /* Overflow check */ | |
2746 | divider = 65535; | |
2747 | ||
2748 | ad_write(devc, 21, (divider >> 8) & 0xff); /* Set upper bits */ | |
2749 | ad_write(devc, 20, divider & 0xff); /* Set lower bits */ | |
2750 | ad_write(devc, 16, ad_read(devc, 16) | 0x40); /* Start the timer */ | |
2751 | devc->timer_running = 1; | |
2752 | spin_unlock_irqrestore(&devc->lock,flags); | |
2753 | ||
2754 | return current_interval = (divider * xtal_nsecs + 500) / 1000; | |
2755 | } | |
2756 | ||
2757 | static void ad1848_tmr_reprogram(int dev) | |
2758 | { | |
2759 | /* | |
2760 | * Audio driver has changed sampling rate so that a different xtal | |
2761 | * oscillator was selected. We have to reprogram the timer rate. | |
2762 | */ | |
2763 | ||
2764 | ad1848_tmr_start(dev, current_interval); | |
2765 | sound_timer_syncinterval(current_interval); | |
2766 | } | |
2767 | ||
2768 | static void ad1848_tmr_disable(int dev) | |
2769 | { | |
2770 | unsigned long flags; | |
2771 | ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; | |
2772 | ||
2773 | spin_lock_irqsave(&devc->lock,flags); | |
2774 | ad_write(devc, 16, ad_read(devc, 16) & ~0x40); | |
2775 | devc->timer_running = 0; | |
2776 | spin_unlock_irqrestore(&devc->lock,flags); | |
2777 | } | |
2778 | ||
2779 | static void ad1848_tmr_restart(int dev) | |
2780 | { | |
2781 | unsigned long flags; | |
2782 | ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; | |
2783 | ||
2784 | if (current_interval == 0) | |
2785 | return; | |
2786 | ||
2787 | spin_lock_irqsave(&devc->lock,flags); | |
2788 | ad_write(devc, 16, ad_read(devc, 16) | 0x40); | |
2789 | devc->timer_running = 1; | |
2790 | spin_unlock_irqrestore(&devc->lock,flags); | |
2791 | } | |
2792 | ||
2793 | static struct sound_lowlev_timer ad1848_tmr = | |
2794 | { | |
2795 | 0, | |
2796 | 2, | |
2797 | ad1848_tmr_start, | |
2798 | ad1848_tmr_disable, | |
2799 | ad1848_tmr_restart | |
2800 | }; | |
2801 | ||
2802 | static int ad1848_tmr_install(int dev) | |
2803 | { | |
2804 | if (timer_installed != -1) | |
2805 | return 0; /* Don't install another timer */ | |
2806 | ||
2807 | timer_installed = ad1848_tmr.dev = dev; | |
2808 | sound_timer_init(&ad1848_tmr, audio_devs[dev]->name); | |
2809 | ||
2810 | return 1; | |
2811 | } | |
2812 | #endif /* EXCLUDE_TIMERS */ | |
2813 | ||
2814 | static int ad1848_suspend(ad1848_info *devc) | |
2815 | { | |
2816 | unsigned long flags; | |
2817 | ||
2818 | spin_lock_irqsave(&devc->lock,flags); | |
2819 | ||
2820 | ad_mute(devc); | |
2821 | ||
2822 | spin_unlock_irqrestore(&devc->lock,flags); | |
2823 | return 0; | |
2824 | } | |
2825 | ||
2826 | static int ad1848_resume(ad1848_info *devc) | |
2827 | { | |
2828 | int mixer_levels[32], i; | |
2829 | ||
2830 | /* Thinkpad is a bit more of PITA than normal. The BIOS tends to | |
2831 | restore it in a different config to the one we use. Need to | |
2832 | fix this somehow */ | |
2833 | ||
2834 | /* store old mixer levels */ | |
2835 | memcpy(mixer_levels, devc->levels, sizeof (mixer_levels)); | |
2836 | ad1848_init_hw(devc); | |
2837 | ||
2838 | /* restore mixer levels */ | |
2839 | for (i = 0; i < 32; i++) | |
2840 | ad1848_mixer_set(devc, devc->dev_no, mixer_levels[i]); | |
2841 | ||
2842 | if (!devc->subtype) { | |
2843 | static signed char interrupt_bits[12] = { -1, -1, -1, -1, -1, 0x00, -1, 0x08, -1, 0x10, 0x18, 0x20 }; | |
2844 | static char dma_bits[4] = { 1, 2, 0, 3 }; | |
2845 | unsigned long flags; | |
2846 | signed char bits; | |
2847 | char dma2_bit = 0; | |
2848 | ||
2849 | int config_port = devc->base + 0; | |
2850 | ||
2851 | bits = interrupt_bits[devc->irq]; | |
2852 | if (bits == -1) { | |
2853 | printk(KERN_ERR "MSS: Bad IRQ %d\n", devc->irq); | |
2854 | return -1; | |
2855 | } | |
2856 | ||
2857 | spin_lock_irqsave(&devc->lock,flags); | |
2858 | ||
2859 | outb((bits | 0x40), config_port); | |
2860 | ||
2861 | if (devc->dma2 != -1 && devc->dma2 != devc->dma1) | |
2862 | if ( (devc->dma1 == 0 && devc->dma2 == 1) || | |
2863 | (devc->dma1 == 1 && devc->dma2 == 0) || | |
2864 | (devc->dma1 == 3 && devc->dma2 == 0)) | |
2865 | dma2_bit = 0x04; | |
2866 | ||
2867 | outb((bits | dma_bits[devc->dma1] | dma2_bit), config_port); | |
2868 | spin_unlock_irqrestore(&devc->lock,flags); | |
2869 | } | |
2870 | ||
2871 | return 0; | |
2872 | } | |
2873 | ||
2874 | static int ad1848_pm_callback(struct pm_dev *dev, pm_request_t rqst, void *data) | |
2875 | { | |
2876 | ad1848_info *devc = dev->data; | |
2877 | if (devc) { | |
2878 | DEB(printk("ad1848: pm event received: 0x%x\n", rqst)); | |
2879 | ||
2880 | switch (rqst) { | |
2881 | case PM_SUSPEND: | |
2882 | ad1848_suspend(devc); | |
2883 | break; | |
2884 | case PM_RESUME: | |
2885 | ad1848_resume(devc); | |
2886 | break; | |
2887 | } | |
2888 | } | |
2889 | return 0; | |
2890 | } | |
2891 | ||
2892 | ||
2893 | EXPORT_SYMBOL(ad1848_detect); | |
2894 | EXPORT_SYMBOL(ad1848_init); | |
2895 | EXPORT_SYMBOL(ad1848_unload); | |
2896 | EXPORT_SYMBOL(ad1848_control); | |
2897 | EXPORT_SYMBOL(adintr); | |
2898 | EXPORT_SYMBOL(probe_ms_sound); | |
2899 | EXPORT_SYMBOL(attach_ms_sound); | |
2900 | EXPORT_SYMBOL(unload_ms_sound); | |
2901 | ||
2902 | static int __initdata io = -1; | |
2903 | static int __initdata irq = -1; | |
2904 | static int __initdata dma = -1; | |
2905 | static int __initdata dma2 = -1; | |
2906 | static int __initdata type = 0; | |
2907 | ||
2908 | module_param(io, int, 0); /* I/O for a raw AD1848 card */ | |
2909 | module_param(irq, int, 0); /* IRQ to use */ | |
2910 | module_param(dma, int, 0); /* First DMA channel */ | |
2911 | module_param(dma2, int, 0); /* Second DMA channel */ | |
2912 | module_param(type, int, 0); /* Card type */ | |
2913 | module_param(deskpro_xl, bool, 0); /* Special magic for Deskpro XL boxen */ | |
2914 | module_param(deskpro_m, bool, 0); /* Special magic for Deskpro M box */ | |
2915 | module_param(soundpro, bool, 0); /* More special magic for SoundPro chips */ | |
2916 | ||
2917 | #ifdef CONFIG_PNP | |
2918 | module_param(isapnp, int, 0); | |
2919 | module_param(isapnpjump, int, 0); | |
2920 | module_param(reverse, bool, 0); | |
2921 | MODULE_PARM_DESC(isapnp, "When set to 0, Plug & Play support will be disabled"); | |
2922 | MODULE_PARM_DESC(isapnpjump, "Jumps to a specific slot in the driver's PnP table. Use the source, Luke."); | |
2923 | MODULE_PARM_DESC(reverse, "When set to 1, will reverse ISAPnP search order"); | |
2924 | ||
2925 | static struct pnp_dev *ad1848_dev = NULL; | |
2926 | ||
2927 | /* Please add new entries at the end of the table */ | |
2928 | static struct { | |
2929 | char *name; | |
2930 | unsigned short card_vendor, card_device, | |
2931 | vendor, function; | |
2932 | short mss_io, irq, dma, dma2; /* index into isapnp table */ | |
2933 | int type; | |
2934 | } ad1848_isapnp_list[] __initdata = { | |
2935 | {"CMI 8330 SoundPRO", | |
2936 | ISAPNP_VENDOR('C','M','I'), ISAPNP_DEVICE(0x0001), | |
2937 | ISAPNP_VENDOR('@','@','@'), ISAPNP_FUNCTION(0x0001), | |
2938 | 0, 0, 0,-1, 0}, | |
2939 | {"CS4232 based card", | |
2940 | ISAPNP_ANY_ID, ISAPNP_ANY_ID, | |
2941 | ISAPNP_VENDOR('C','S','C'), ISAPNP_FUNCTION(0x0000), | |
2942 | 0, 0, 0, 1, 0}, | |
2943 | {"CS4232 based card", | |
2944 | ISAPNP_ANY_ID, ISAPNP_ANY_ID, | |
2945 | ISAPNP_VENDOR('C','S','C'), ISAPNP_FUNCTION(0x0100), | |
2946 | 0, 0, 0, 1, 0}, | |
2947 | {"OPL3-SA2 WSS mode", | |
2948 | ISAPNP_ANY_ID, ISAPNP_ANY_ID, | |
2949 | ISAPNP_VENDOR('Y','M','H'), ISAPNP_FUNCTION(0x0021), | |
2950 | 1, 0, 0, 1, 1}, | |
2951 | {"Advanced Gravis InterWave Audio", | |
2952 | ISAPNP_VENDOR('G','R','V'), ISAPNP_DEVICE(0x0001), | |
2953 | ISAPNP_VENDOR('G','R','V'), ISAPNP_FUNCTION(0x0000), | |
2954 | 0, 0, 0, 1, 0}, | |
2955 | {NULL} | |
2956 | }; | |
2957 | ||
2958 | static struct isapnp_device_id id_table[] __devinitdata = { | |
2959 | { ISAPNP_VENDOR('C','M','I'), ISAPNP_DEVICE(0x0001), | |
2960 | ISAPNP_VENDOR('@','@','@'), ISAPNP_FUNCTION(0x0001), 0 }, | |
2961 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, | |
2962 | ISAPNP_VENDOR('C','S','C'), ISAPNP_FUNCTION(0x0000), 0 }, | |
2963 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, | |
2964 | ISAPNP_VENDOR('C','S','C'), ISAPNP_FUNCTION(0x0100), 0 }, | |
2965 | /* The main driver for this card is opl3sa2 | |
2966 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, | |
2967 | ISAPNP_VENDOR('Y','M','H'), ISAPNP_FUNCTION(0x0021), 0 }, | |
2968 | */ | |
2969 | { ISAPNP_VENDOR('G','R','V'), ISAPNP_DEVICE(0x0001), | |
2970 | ISAPNP_VENDOR('G','R','V'), ISAPNP_FUNCTION(0x0000), 0 }, | |
2971 | {0} | |
2972 | }; | |
2973 | ||
2974 | MODULE_DEVICE_TABLE(isapnp, id_table); | |
2975 | ||
2976 | static struct pnp_dev *activate_dev(char *devname, char *resname, struct pnp_dev *dev) | |
2977 | { | |
2978 | int err; | |
2979 | ||
2980 | err = pnp_device_attach(dev); | |
2981 | if (err < 0) | |
2982 | return(NULL); | |
2983 | ||
2984 | if((err = pnp_activate_dev(dev)) < 0) { | |
2985 | printk(KERN_ERR "ad1848: %s %s config failed (out of resources?)[%d]\n", devname, resname, err); | |
2986 | ||
2987 | pnp_device_detach(dev); | |
2988 | ||
2989 | return(NULL); | |
2990 | } | |
2991 | audio_activated = 1; | |
2992 | return(dev); | |
2993 | } | |
2994 | ||
2995 | static struct pnp_dev *ad1848_init_generic(struct pnp_card *bus, struct address_info *hw_config, int slot) | |
2996 | { | |
2997 | ||
2998 | /* Configure Audio device */ | |
2999 | if((ad1848_dev = pnp_find_dev(bus, ad1848_isapnp_list[slot].vendor, ad1848_isapnp_list[slot].function, NULL))) | |
3000 | { | |
3001 | if((ad1848_dev = activate_dev(ad1848_isapnp_list[slot].name, "ad1848", ad1848_dev))) | |
3002 | { | |
3003 | hw_config->io_base = pnp_port_start(ad1848_dev, ad1848_isapnp_list[slot].mss_io); | |
3004 | hw_config->irq = pnp_irq(ad1848_dev, ad1848_isapnp_list[slot].irq); | |
3005 | hw_config->dma = pnp_dma(ad1848_dev, ad1848_isapnp_list[slot].dma); | |
3006 | if(ad1848_isapnp_list[slot].dma2 != -1) | |
3007 | hw_config->dma2 = pnp_dma(ad1848_dev, ad1848_isapnp_list[slot].dma2); | |
3008 | else | |
3009 | hw_config->dma2 = -1; | |
3010 | hw_config->card_subtype = ad1848_isapnp_list[slot].type; | |
3011 | } else | |
3012 | return(NULL); | |
3013 | } else | |
3014 | return(NULL); | |
3015 | ||
3016 | return(ad1848_dev); | |
3017 | } | |
3018 | ||
3019 | static int __init ad1848_isapnp_init(struct address_info *hw_config, struct pnp_card *bus, int slot) | |
3020 | { | |
3021 | char *busname = bus->name[0] ? bus->name : ad1848_isapnp_list[slot].name; | |
3022 | ||
3023 | /* Initialize this baby. */ | |
3024 | ||
3025 | if(ad1848_init_generic(bus, hw_config, slot)) { | |
3026 | /* We got it. */ | |
3027 | ||
3028 | printk(KERN_NOTICE "ad1848: PnP reports '%s' at i/o %#x, irq %d, dma %d, %d\n", | |
3029 | busname, | |
3030 | hw_config->io_base, hw_config->irq, hw_config->dma, | |
3031 | hw_config->dma2); | |
3032 | return 1; | |
3033 | } | |
3034 | return 0; | |
3035 | } | |
3036 | ||
3037 | static int __init ad1848_isapnp_probe(struct address_info *hw_config) | |
3038 | { | |
3039 | static int first = 1; | |
3040 | int i; | |
3041 | ||
3042 | /* Count entries in sb_isapnp_list */ | |
3043 | for (i = 0; ad1848_isapnp_list[i].card_vendor != 0; i++); | |
3044 | i--; | |
3045 | ||
3046 | /* Check and adjust isapnpjump */ | |
3047 | if( isapnpjump < 0 || isapnpjump > i) { | |
3048 | isapnpjump = reverse ? i : 0; | |
3049 | printk(KERN_ERR "ad1848: Valid range for isapnpjump is 0-%d. Adjusted to %d.\n", i, isapnpjump); | |
3050 | } | |
3051 | ||
3052 | if(!first || !reverse) | |
3053 | i = isapnpjump; | |
3054 | first = 0; | |
3055 | while(ad1848_isapnp_list[i].card_vendor != 0) { | |
3056 | static struct pnp_card *bus = NULL; | |
3057 | ||
3058 | while ((bus = pnp_find_card( | |
3059 | ad1848_isapnp_list[i].card_vendor, | |
3060 | ad1848_isapnp_list[i].card_device, | |
3061 | bus))) { | |
3062 | ||
3063 | if(ad1848_isapnp_init(hw_config, bus, i)) { | |
3064 | isapnpjump = i; /* start next search from here */ | |
3065 | return 0; | |
3066 | } | |
3067 | } | |
3068 | i += reverse ? -1 : 1; | |
3069 | } | |
3070 | ||
3071 | return -ENODEV; | |
3072 | } | |
3073 | #endif | |
3074 | ||
3075 | ||
3076 | static int __init init_ad1848(void) | |
3077 | { | |
3078 | printk(KERN_INFO "ad1848/cs4248 codec driver Copyright (C) by Hannu Savolainen 1993-1996\n"); | |
3079 | ||
3080 | #ifdef CONFIG_PNP | |
3081 | if(isapnp && (ad1848_isapnp_probe(&cfg) < 0) ) { | |
3082 | printk(KERN_NOTICE "ad1848: No ISAPnP cards found, trying standard ones...\n"); | |
3083 | isapnp = 0; | |
3084 | } | |
3085 | #endif | |
3086 | ||
3087 | if(io != -1) { | |
3088 | struct resource *ports; | |
3089 | if( isapnp == 0 ) | |
3090 | { | |
3091 | if(irq == -1 || dma == -1) { | |
3092 | printk(KERN_WARNING "ad1848: must give I/O , IRQ and DMA.\n"); | |
3093 | return -EINVAL; | |
3094 | } | |
3095 | ||
3096 | cfg.irq = irq; | |
3097 | cfg.io_base = io; | |
3098 | cfg.dma = dma; | |
3099 | cfg.dma2 = dma2; | |
3100 | cfg.card_subtype = type; | |
3101 | } | |
3102 | ||
3103 | ports = request_region(io + 4, 4, "ad1848"); | |
3104 | ||
3105 | if (!ports) | |
3106 | return -EBUSY; | |
3107 | ||
3108 | if (!request_region(io, 4, "WSS config")) { | |
3109 | release_region(io + 4, 4); | |
3110 | return -EBUSY; | |
3111 | } | |
3112 | ||
3113 | if (!probe_ms_sound(&cfg, ports)) { | |
3114 | release_region(io + 4, 4); | |
3115 | release_region(io, 4); | |
3116 | return -ENODEV; | |
3117 | } | |
3118 | attach_ms_sound(&cfg, ports, THIS_MODULE); | |
3119 | loaded = 1; | |
3120 | } | |
3121 | return 0; | |
3122 | } | |
3123 | ||
3124 | static void __exit cleanup_ad1848(void) | |
3125 | { | |
3126 | if(loaded) | |
3127 | unload_ms_sound(&cfg); | |
3128 | ||
3129 | #ifdef CONFIG_PNP | |
3130 | if(ad1848_dev){ | |
3131 | if(audio_activated) | |
3132 | pnp_device_detach(ad1848_dev); | |
3133 | } | |
3134 | #endif | |
3135 | } | |
3136 | ||
3137 | module_init(init_ad1848); | |
3138 | module_exit(cleanup_ad1848); | |
3139 | ||
3140 | #ifndef MODULE | |
3141 | static int __init setup_ad1848(char *str) | |
3142 | { | |
3143 | /* io, irq, dma, dma2, type */ | |
3144 | int ints[6]; | |
3145 | ||
3146 | str = get_options(str, ARRAY_SIZE(ints), ints); | |
3147 | ||
3148 | io = ints[1]; | |
3149 | irq = ints[2]; | |
3150 | dma = ints[3]; | |
3151 | dma2 = ints[4]; | |
3152 | type = ints[5]; | |
3153 | ||
3154 | return 1; | |
3155 | } | |
3156 | ||
3157 | __setup("ad1848=", setup_ad1848); | |
3158 | #endif | |
3159 | MODULE_LICENSE("GPL"); |