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1da177e4 LT |
1 | /* |
2 | * Driver for NeoMagic 256AV and 256ZX chipsets. | |
3 | * Copyright (c) 2000 by Takashi Iwai <tiwai@suse.de> | |
4 | * | |
5 | * Based on nm256_audio.c OSS driver in linux kernel. | |
6 | * The original author of OSS nm256 driver wishes to remain anonymous, | |
7 | * so I just put my acknoledgment to him/her here. | |
8 | * The original author's web page is found at | |
9 | * http://www.uglx.org/sony.html | |
10 | * | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or | |
15 | * (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
25 | */ | |
26 | ||
27 | #include <sound/driver.h> | |
28 | #include <asm/io.h> | |
29 | #include <linux/delay.h> | |
30 | #include <linux/interrupt.h> | |
31 | #include <linux/init.h> | |
32 | #include <linux/pci.h> | |
33 | #include <linux/slab.h> | |
34 | #include <linux/moduleparam.h> | |
35 | #include <sound/core.h> | |
36 | #include <sound/info.h> | |
37 | #include <sound/control.h> | |
38 | #include <sound/pcm.h> | |
39 | #include <sound/ac97_codec.h> | |
40 | #include <sound/initval.h> | |
41 | ||
42 | #define CARD_NAME "NeoMagic 256AV/ZX" | |
43 | #define DRIVER_NAME "NM256" | |
44 | ||
45 | MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>"); | |
46 | MODULE_DESCRIPTION("NeoMagic NM256AV/ZX"); | |
47 | MODULE_LICENSE("GPL"); | |
48 | MODULE_SUPPORTED_DEVICE("{{NeoMagic,NM256AV}," | |
49 | "{NeoMagic,NM256ZX}}"); | |
50 | ||
51 | /* | |
52 | * some compile conditions. | |
53 | */ | |
54 | ||
55 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ | |
56 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ | |
57 | static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; | |
58 | static int playback_bufsize[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 16}; | |
59 | static int capture_bufsize[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 16}; | |
60 | static int force_ac97[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 0}; /* disabled as default */ | |
61 | static int buffer_top[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 0}; /* not specified */ | |
62 | static int use_cache[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 0}; /* disabled */ | |
63 | static int vaio_hack[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 0}; /* disabled */ | |
64 | static int reset_workaround[SNDRV_CARDS]; | |
65 | ||
66 | module_param_array(index, int, NULL, 0444); | |
67 | MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard."); | |
68 | module_param_array(id, charp, NULL, 0444); | |
69 | MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard."); | |
70 | module_param_array(enable, bool, NULL, 0444); | |
71 | MODULE_PARM_DESC(enable, "Enable this soundcard."); | |
72 | module_param_array(playback_bufsize, int, NULL, 0444); | |
73 | MODULE_PARM_DESC(playback_bufsize, "DAC frame size in kB for " CARD_NAME " soundcard."); | |
74 | module_param_array(capture_bufsize, int, NULL, 0444); | |
75 | MODULE_PARM_DESC(capture_bufsize, "ADC frame size in kB for " CARD_NAME " soundcard."); | |
76 | module_param_array(force_ac97, bool, NULL, 0444); | |
77 | MODULE_PARM_DESC(force_ac97, "Force to use AC97 codec for " CARD_NAME " soundcard."); | |
78 | module_param_array(buffer_top, int, NULL, 0444); | |
79 | MODULE_PARM_DESC(buffer_top, "Set the top address of audio buffer for " CARD_NAME " soundcard."); | |
80 | module_param_array(use_cache, bool, NULL, 0444); | |
81 | MODULE_PARM_DESC(use_cache, "Enable the cache for coefficient table access."); | |
82 | module_param_array(vaio_hack, bool, NULL, 0444); | |
83 | MODULE_PARM_DESC(vaio_hack, "Enable workaround for Sony VAIO notebooks."); | |
84 | module_param_array(reset_workaround, bool, NULL, 0444); | |
85 | MODULE_PARM_DESC(reset_workaround, "Enable AC97 RESET workaround for some laptops."); | |
86 | ||
87 | /* | |
88 | * hw definitions | |
89 | */ | |
90 | ||
91 | /* The BIOS signature. */ | |
92 | #define NM_SIGNATURE 0x4e4d0000 | |
93 | /* Signature mask. */ | |
94 | #define NM_SIG_MASK 0xffff0000 | |
95 | ||
96 | /* Size of the second memory area. */ | |
97 | #define NM_PORT2_SIZE 4096 | |
98 | ||
99 | /* The base offset of the mixer in the second memory area. */ | |
100 | #define NM_MIXER_OFFSET 0x600 | |
101 | ||
102 | /* The maximum size of a coefficient entry. */ | |
103 | #define NM_MAX_PLAYBACK_COEF_SIZE 0x5000 | |
104 | #define NM_MAX_RECORD_COEF_SIZE 0x1260 | |
105 | ||
106 | /* The interrupt register. */ | |
107 | #define NM_INT_REG 0xa04 | |
108 | /* And its bits. */ | |
109 | #define NM_PLAYBACK_INT 0x40 | |
110 | #define NM_RECORD_INT 0x100 | |
111 | #define NM_MISC_INT_1 0x4000 | |
112 | #define NM_MISC_INT_2 0x1 | |
113 | #define NM_ACK_INT(chip, X) snd_nm256_writew(chip, NM_INT_REG, (X) << 1) | |
114 | ||
115 | /* The AV's "mixer ready" status bit and location. */ | |
116 | #define NM_MIXER_STATUS_OFFSET 0xa04 | |
117 | #define NM_MIXER_READY_MASK 0x0800 | |
118 | #define NM_MIXER_PRESENCE 0xa06 | |
119 | #define NM_PRESENCE_MASK 0x0050 | |
120 | #define NM_PRESENCE_VALUE 0x0040 | |
121 | ||
122 | /* | |
123 | * For the ZX. It uses the same interrupt register, but it holds 32 | |
124 | * bits instead of 16. | |
125 | */ | |
126 | #define NM2_PLAYBACK_INT 0x10000 | |
127 | #define NM2_RECORD_INT 0x80000 | |
128 | #define NM2_MISC_INT_1 0x8 | |
129 | #define NM2_MISC_INT_2 0x2 | |
130 | #define NM2_ACK_INT(chip, X) snd_nm256_writel(chip, NM_INT_REG, (X)) | |
131 | ||
132 | /* The ZX's "mixer ready" status bit and location. */ | |
133 | #define NM2_MIXER_STATUS_OFFSET 0xa06 | |
134 | #define NM2_MIXER_READY_MASK 0x0800 | |
135 | ||
136 | /* The playback registers start from here. */ | |
137 | #define NM_PLAYBACK_REG_OFFSET 0x0 | |
138 | /* The record registers start from here. */ | |
139 | #define NM_RECORD_REG_OFFSET 0x200 | |
140 | ||
141 | /* The rate register is located 2 bytes from the start of the register area. */ | |
142 | #define NM_RATE_REG_OFFSET 2 | |
143 | ||
144 | /* Mono/stereo flag, number of bits on playback, and rate mask. */ | |
145 | #define NM_RATE_STEREO 1 | |
146 | #define NM_RATE_BITS_16 2 | |
147 | #define NM_RATE_MASK 0xf0 | |
148 | ||
149 | /* Playback enable register. */ | |
150 | #define NM_PLAYBACK_ENABLE_REG (NM_PLAYBACK_REG_OFFSET + 0x1) | |
151 | #define NM_PLAYBACK_ENABLE_FLAG 1 | |
152 | #define NM_PLAYBACK_ONESHOT 2 | |
153 | #define NM_PLAYBACK_FREERUN 4 | |
154 | ||
155 | /* Mutes the audio output. */ | |
156 | #define NM_AUDIO_MUTE_REG (NM_PLAYBACK_REG_OFFSET + 0x18) | |
157 | #define NM_AUDIO_MUTE_LEFT 0x8000 | |
158 | #define NM_AUDIO_MUTE_RIGHT 0x0080 | |
159 | ||
160 | /* Recording enable register. */ | |
161 | #define NM_RECORD_ENABLE_REG (NM_RECORD_REG_OFFSET + 0) | |
162 | #define NM_RECORD_ENABLE_FLAG 1 | |
163 | #define NM_RECORD_FREERUN 2 | |
164 | ||
165 | /* coefficient buffer pointer */ | |
166 | #define NM_COEFF_START_OFFSET 0x1c | |
167 | #define NM_COEFF_END_OFFSET 0x20 | |
168 | ||
169 | /* DMA buffer offsets */ | |
170 | #define NM_RBUFFER_START (NM_RECORD_REG_OFFSET + 0x4) | |
171 | #define NM_RBUFFER_END (NM_RECORD_REG_OFFSET + 0x10) | |
172 | #define NM_RBUFFER_WMARK (NM_RECORD_REG_OFFSET + 0xc) | |
173 | #define NM_RBUFFER_CURRP (NM_RECORD_REG_OFFSET + 0x8) | |
174 | ||
175 | #define NM_PBUFFER_START (NM_PLAYBACK_REG_OFFSET + 0x4) | |
176 | #define NM_PBUFFER_END (NM_PLAYBACK_REG_OFFSET + 0x14) | |
177 | #define NM_PBUFFER_WMARK (NM_PLAYBACK_REG_OFFSET + 0xc) | |
178 | #define NM_PBUFFER_CURRP (NM_PLAYBACK_REG_OFFSET + 0x8) | |
179 | ||
180 | /* | |
181 | * type definitions | |
182 | */ | |
183 | ||
184 | typedef struct snd_nm256 nm256_t; | |
185 | typedef struct snd_nm256_stream nm256_stream_t; | |
186 | ||
187 | struct snd_nm256_stream { | |
188 | ||
189 | nm256_t *chip; | |
190 | snd_pcm_substream_t *substream; | |
191 | int running; | |
192 | ||
193 | u32 buf; /* offset from chip->buffer */ | |
194 | int bufsize; /* buffer size in bytes */ | |
195 | void __iomem *bufptr; /* mapped pointer */ | |
196 | unsigned long bufptr_addr; /* physical address of the mapped pointer */ | |
197 | ||
198 | int dma_size; /* buffer size of the substream in bytes */ | |
199 | int period_size; /* period size in bytes */ | |
200 | int periods; /* # of periods */ | |
201 | int shift; /* bit shifts */ | |
202 | int cur_period; /* current period # */ | |
203 | ||
204 | }; | |
205 | ||
206 | struct snd_nm256 { | |
207 | ||
208 | snd_card_t *card; | |
209 | ||
210 | void __iomem *cport; /* control port */ | |
211 | struct resource *res_cport; /* its resource */ | |
212 | unsigned long cport_addr; /* physical address */ | |
213 | ||
214 | void __iomem *buffer; /* buffer */ | |
215 | struct resource *res_buffer; /* its resource */ | |
216 | unsigned long buffer_addr; /* buffer phyiscal address */ | |
217 | ||
218 | u32 buffer_start; /* start offset from pci resource 0 */ | |
219 | u32 buffer_end; /* end offset */ | |
220 | u32 buffer_size; /* total buffer size */ | |
221 | ||
222 | u32 all_coeff_buf; /* coefficient buffer */ | |
223 | u32 coeff_buf[2]; /* coefficient buffer for each stream */ | |
224 | ||
225 | unsigned int coeffs_current: 1; /* coeff. table is loaded? */ | |
226 | unsigned int use_cache: 1; /* use one big coef. table */ | |
227 | unsigned int reset_workaround: 1; /* Workaround for some laptops to avoid freeze */ | |
228 | ||
229 | int mixer_base; /* register offset of ac97 mixer */ | |
230 | int mixer_status_offset; /* offset of mixer status reg. */ | |
231 | int mixer_status_mask; /* bit mask to test the mixer status */ | |
232 | ||
233 | int irq; | |
234 | irqreturn_t (*interrupt)(int, void *, struct pt_regs *); | |
235 | int badintrcount; /* counter to check bogus interrupts */ | |
236 | ||
237 | nm256_stream_t streams[2]; | |
238 | ||
239 | ac97_t *ac97; | |
240 | ||
241 | snd_pcm_t *pcm; | |
242 | ||
243 | struct pci_dev *pci; | |
244 | ||
245 | spinlock_t reg_lock; | |
246 | ||
247 | }; | |
248 | ||
249 | ||
250 | /* | |
251 | * include coefficient table | |
252 | */ | |
253 | #include "nm256_coef.c" | |
254 | ||
255 | ||
256 | /* | |
257 | * PCI ids | |
258 | */ | |
259 | ||
260 | #ifndef PCI_VENDOR_ID_NEOMAGIC | |
261 | #define PCI_VENDOR_ID_NEOMEGIC 0x10c8 | |
262 | #endif | |
263 | #ifndef PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO | |
264 | #define PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO 0x8005 | |
265 | #endif | |
266 | #ifndef PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO | |
267 | #define PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO 0x8006 | |
268 | #endif | |
269 | #ifndef PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO | |
270 | #define PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO 0x8016 | |
271 | #endif | |
272 | ||
273 | ||
274 | static struct pci_device_id snd_nm256_ids[] = { | |
275 | {PCI_VENDOR_ID_NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
276 | {PCI_VENDOR_ID_NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
277 | {PCI_VENDOR_ID_NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
278 | {0,}, | |
279 | }; | |
280 | ||
281 | MODULE_DEVICE_TABLE(pci, snd_nm256_ids); | |
282 | ||
283 | ||
284 | /* | |
285 | * lowlvel stuffs | |
286 | */ | |
287 | ||
288 | inline static u8 | |
289 | snd_nm256_readb(nm256_t *chip, int offset) | |
290 | { | |
291 | return readb(chip->cport + offset); | |
292 | } | |
293 | ||
294 | inline static u16 | |
295 | snd_nm256_readw(nm256_t *chip, int offset) | |
296 | { | |
297 | return readw(chip->cport + offset); | |
298 | } | |
299 | ||
300 | inline static u32 | |
301 | snd_nm256_readl(nm256_t *chip, int offset) | |
302 | { | |
303 | return readl(chip->cport + offset); | |
304 | } | |
305 | ||
306 | inline static void | |
307 | snd_nm256_writeb(nm256_t *chip, int offset, u8 val) | |
308 | { | |
309 | writeb(val, chip->cport + offset); | |
310 | } | |
311 | ||
312 | inline static void | |
313 | snd_nm256_writew(nm256_t *chip, int offset, u16 val) | |
314 | { | |
315 | writew(val, chip->cport + offset); | |
316 | } | |
317 | ||
318 | inline static void | |
319 | snd_nm256_writel(nm256_t *chip, int offset, u32 val) | |
320 | { | |
321 | writel(val, chip->cport + offset); | |
322 | } | |
323 | ||
324 | inline static void | |
325 | snd_nm256_write_buffer(nm256_t *chip, void *src, int offset, int size) | |
326 | { | |
327 | offset -= chip->buffer_start; | |
328 | #ifdef SNDRV_CONFIG_DEBUG | |
329 | if (offset < 0 || offset >= chip->buffer_size) { | |
330 | snd_printk("write_buffer invalid offset = %d size = %d\n", offset, size); | |
331 | return; | |
332 | } | |
333 | #endif | |
334 | memcpy_toio(chip->buffer + offset, src, size); | |
335 | } | |
336 | ||
337 | /* | |
338 | * coefficient handlers -- what a magic! | |
339 | */ | |
340 | ||
341 | static u16 | |
342 | snd_nm256_get_start_offset(int which) | |
343 | { | |
344 | u16 offset = 0; | |
345 | while (which-- > 0) | |
346 | offset += coefficient_sizes[which]; | |
347 | return offset; | |
348 | } | |
349 | ||
350 | static void | |
351 | snd_nm256_load_one_coefficient(nm256_t *chip, int stream, u32 port, int which) | |
352 | { | |
353 | u32 coeff_buf = chip->coeff_buf[stream]; | |
354 | u16 offset = snd_nm256_get_start_offset(which); | |
355 | u16 size = coefficient_sizes[which]; | |
356 | ||
357 | snd_nm256_write_buffer(chip, coefficients + offset, coeff_buf, size); | |
358 | snd_nm256_writel(chip, port, coeff_buf); | |
359 | /* ??? Record seems to behave differently than playback. */ | |
360 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
361 | size--; | |
362 | snd_nm256_writel(chip, port + 4, coeff_buf + size); | |
363 | } | |
364 | ||
365 | static void | |
366 | snd_nm256_load_coefficient(nm256_t *chip, int stream, int number) | |
367 | { | |
368 | /* The enable register for the specified engine. */ | |
369 | u32 poffset = (stream == SNDRV_PCM_STREAM_CAPTURE ? NM_RECORD_ENABLE_REG : NM_PLAYBACK_ENABLE_REG); | |
370 | u32 addr = NM_COEFF_START_OFFSET; | |
371 | ||
372 | addr += (stream == SNDRV_PCM_STREAM_CAPTURE ? NM_RECORD_REG_OFFSET : NM_PLAYBACK_REG_OFFSET); | |
373 | ||
374 | if (snd_nm256_readb(chip, poffset) & 1) { | |
375 | snd_printd("NM256: Engine was enabled while loading coefficients!\n"); | |
376 | return; | |
377 | } | |
378 | ||
379 | /* The recording engine uses coefficient values 8-15. */ | |
380 | number &= 7; | |
381 | if (stream == SNDRV_PCM_STREAM_CAPTURE) | |
382 | number += 8; | |
383 | ||
384 | if (! chip->use_cache) { | |
385 | snd_nm256_load_one_coefficient(chip, stream, addr, number); | |
386 | return; | |
387 | } | |
388 | if (! chip->coeffs_current) { | |
389 | snd_nm256_write_buffer(chip, coefficients, chip->all_coeff_buf, | |
390 | NM_TOTAL_COEFF_COUNT * 4); | |
391 | chip->coeffs_current = 1; | |
392 | } else { | |
393 | u32 base = chip->all_coeff_buf; | |
394 | u32 offset = snd_nm256_get_start_offset(number); | |
395 | u32 end_offset = offset + coefficient_sizes[number]; | |
396 | snd_nm256_writel(chip, addr, base + offset); | |
397 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
398 | end_offset--; | |
399 | snd_nm256_writel(chip, addr + 4, base + end_offset); | |
400 | } | |
401 | } | |
402 | ||
403 | ||
404 | /* The actual rates supported by the card. */ | |
405 | static unsigned int samplerates[8] = { | |
406 | 8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000, | |
407 | }; | |
408 | static snd_pcm_hw_constraint_list_t constraints_rates = { | |
409 | .count = ARRAY_SIZE(samplerates), | |
410 | .list = samplerates, | |
411 | .mask = 0, | |
412 | }; | |
413 | ||
414 | /* | |
415 | * return the index of the target rate | |
416 | */ | |
417 | static int | |
418 | snd_nm256_fixed_rate(unsigned int rate) | |
419 | { | |
420 | unsigned int i; | |
421 | for (i = 0; i < ARRAY_SIZE(samplerates); i++) { | |
422 | if (rate == samplerates[i]) | |
423 | return i; | |
424 | } | |
425 | snd_BUG(); | |
426 | return 0; | |
427 | } | |
428 | ||
429 | /* | |
430 | * set sample rate and format | |
431 | */ | |
432 | static void | |
433 | snd_nm256_set_format(nm256_t *chip, nm256_stream_t *s, snd_pcm_substream_t *substream) | |
434 | { | |
435 | snd_pcm_runtime_t *runtime = substream->runtime; | |
436 | int rate_index = snd_nm256_fixed_rate(runtime->rate); | |
437 | unsigned char ratebits = (rate_index << 4) & NM_RATE_MASK; | |
438 | ||
439 | s->shift = 0; | |
440 | if (snd_pcm_format_width(runtime->format) == 16) { | |
441 | ratebits |= NM_RATE_BITS_16; | |
442 | s->shift++; | |
443 | } | |
444 | if (runtime->channels > 1) { | |
445 | ratebits |= NM_RATE_STEREO; | |
446 | s->shift++; | |
447 | } | |
448 | ||
449 | runtime->rate = samplerates[rate_index]; | |
450 | ||
451 | switch (substream->stream) { | |
452 | case SNDRV_PCM_STREAM_PLAYBACK: | |
453 | snd_nm256_load_coefficient(chip, 0, rate_index); /* 0 = playback */ | |
454 | snd_nm256_writeb(chip, | |
455 | NM_PLAYBACK_REG_OFFSET + NM_RATE_REG_OFFSET, | |
456 | ratebits); | |
457 | break; | |
458 | case SNDRV_PCM_STREAM_CAPTURE: | |
459 | snd_nm256_load_coefficient(chip, 1, rate_index); /* 1 = record */ | |
460 | snd_nm256_writeb(chip, | |
461 | NM_RECORD_REG_OFFSET + NM_RATE_REG_OFFSET, | |
462 | ratebits); | |
463 | break; | |
464 | } | |
465 | } | |
466 | ||
467 | /* | |
468 | * start / stop | |
469 | */ | |
470 | ||
471 | /* update the watermark (current period) */ | |
472 | static void snd_nm256_pcm_mark(nm256_t *chip, nm256_stream_t *s, int reg) | |
473 | { | |
474 | s->cur_period++; | |
475 | s->cur_period %= s->periods; | |
476 | snd_nm256_writel(chip, reg, s->buf + s->cur_period * s->period_size); | |
477 | } | |
478 | ||
479 | #define snd_nm256_playback_mark(chip, s) snd_nm256_pcm_mark(chip, s, NM_PBUFFER_WMARK) | |
480 | #define snd_nm256_capture_mark(chip, s) snd_nm256_pcm_mark(chip, s, NM_RBUFFER_WMARK) | |
481 | ||
482 | static void | |
483 | snd_nm256_playback_start(nm256_t *chip, nm256_stream_t *s, snd_pcm_substream_t *substream) | |
484 | { | |
485 | /* program buffer pointers */ | |
486 | snd_nm256_writel(chip, NM_PBUFFER_START, s->buf); | |
487 | snd_nm256_writel(chip, NM_PBUFFER_END, s->buf + s->dma_size - (1 << s->shift)); | |
488 | snd_nm256_writel(chip, NM_PBUFFER_CURRP, s->buf); | |
489 | snd_nm256_playback_mark(chip, s); | |
490 | ||
491 | /* Enable playback engine and interrupts. */ | |
492 | snd_nm256_writeb(chip, NM_PLAYBACK_ENABLE_REG, | |
493 | NM_PLAYBACK_ENABLE_FLAG | NM_PLAYBACK_FREERUN); | |
494 | /* Enable both channels. */ | |
495 | snd_nm256_writew(chip, NM_AUDIO_MUTE_REG, 0x0); | |
496 | } | |
497 | ||
498 | static void | |
499 | snd_nm256_capture_start(nm256_t *chip, nm256_stream_t *s, snd_pcm_substream_t *substream) | |
500 | { | |
501 | /* program buffer pointers */ | |
502 | snd_nm256_writel(chip, NM_RBUFFER_START, s->buf); | |
503 | snd_nm256_writel(chip, NM_RBUFFER_END, s->buf + s->dma_size); | |
504 | snd_nm256_writel(chip, NM_RBUFFER_CURRP, s->buf); | |
505 | snd_nm256_capture_mark(chip, s); | |
506 | ||
507 | /* Enable playback engine and interrupts. */ | |
508 | snd_nm256_writeb(chip, NM_RECORD_ENABLE_REG, | |
509 | NM_RECORD_ENABLE_FLAG | NM_RECORD_FREERUN); | |
510 | } | |
511 | ||
512 | /* Stop the play engine. */ | |
513 | static void | |
514 | snd_nm256_playback_stop(nm256_t *chip) | |
515 | { | |
516 | /* Shut off sound from both channels. */ | |
517 | snd_nm256_writew(chip, NM_AUDIO_MUTE_REG, | |
518 | NM_AUDIO_MUTE_LEFT | NM_AUDIO_MUTE_RIGHT); | |
519 | /* Disable play engine. */ | |
520 | snd_nm256_writeb(chip, NM_PLAYBACK_ENABLE_REG, 0); | |
521 | } | |
522 | ||
523 | static void | |
524 | snd_nm256_capture_stop(nm256_t *chip) | |
525 | { | |
526 | /* Disable recording engine. */ | |
527 | snd_nm256_writeb(chip, NM_RECORD_ENABLE_REG, 0); | |
528 | } | |
529 | ||
530 | static int | |
531 | snd_nm256_playback_trigger(snd_pcm_substream_t *substream, int cmd) | |
532 | { | |
533 | nm256_t *chip = snd_pcm_substream_chip(substream); | |
534 | nm256_stream_t *s = (nm256_stream_t*)substream->runtime->private_data; | |
535 | int err = 0; | |
536 | ||
537 | snd_assert(s != NULL, return -ENXIO); | |
538 | ||
539 | spin_lock(&chip->reg_lock); | |
540 | switch (cmd) { | |
541 | case SNDRV_PCM_TRIGGER_START: | |
542 | case SNDRV_PCM_TRIGGER_RESUME: | |
543 | if (! s->running) { | |
544 | snd_nm256_playback_start(chip, s, substream); | |
545 | s->running = 1; | |
546 | } | |
547 | break; | |
548 | case SNDRV_PCM_TRIGGER_STOP: | |
549 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
550 | if (s->running) { | |
551 | snd_nm256_playback_stop(chip); | |
552 | s->running = 0; | |
553 | } | |
554 | break; | |
555 | default: | |
556 | err = -EINVAL; | |
557 | break; | |
558 | } | |
559 | spin_unlock(&chip->reg_lock); | |
560 | return err; | |
561 | } | |
562 | ||
563 | static int | |
564 | snd_nm256_capture_trigger(snd_pcm_substream_t *substream, int cmd) | |
565 | { | |
566 | nm256_t *chip = snd_pcm_substream_chip(substream); | |
567 | nm256_stream_t *s = (nm256_stream_t*)substream->runtime->private_data; | |
568 | int err = 0; | |
569 | ||
570 | snd_assert(s != NULL, return -ENXIO); | |
571 | ||
572 | spin_lock(&chip->reg_lock); | |
573 | switch (cmd) { | |
574 | case SNDRV_PCM_TRIGGER_START: | |
575 | case SNDRV_PCM_TRIGGER_RESUME: | |
576 | if (! s->running) { | |
577 | snd_nm256_capture_start(chip, s, substream); | |
578 | s->running = 1; | |
579 | } | |
580 | break; | |
581 | case SNDRV_PCM_TRIGGER_STOP: | |
582 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
583 | if (s->running) { | |
584 | snd_nm256_capture_stop(chip); | |
585 | s->running = 0; | |
586 | } | |
587 | break; | |
588 | default: | |
589 | err = -EINVAL; | |
590 | break; | |
591 | } | |
592 | spin_unlock(&chip->reg_lock); | |
593 | return err; | |
594 | } | |
595 | ||
596 | ||
597 | /* | |
598 | * prepare playback/capture channel | |
599 | */ | |
600 | static int snd_nm256_pcm_prepare(snd_pcm_substream_t *substream) | |
601 | { | |
602 | nm256_t *chip = snd_pcm_substream_chip(substream); | |
603 | snd_pcm_runtime_t *runtime = substream->runtime; | |
604 | nm256_stream_t *s = (nm256_stream_t*)runtime->private_data; | |
605 | ||
606 | snd_assert(s, return -ENXIO); | |
607 | s->dma_size = frames_to_bytes(runtime, substream->runtime->buffer_size); | |
608 | s->period_size = frames_to_bytes(runtime, substream->runtime->period_size); | |
609 | s->periods = substream->runtime->periods; | |
610 | s->cur_period = 0; | |
611 | ||
612 | spin_lock_irq(&chip->reg_lock); | |
613 | s->running = 0; | |
614 | snd_nm256_set_format(chip, s, substream); | |
615 | spin_unlock_irq(&chip->reg_lock); | |
616 | ||
617 | return 0; | |
618 | } | |
619 | ||
620 | ||
621 | /* | |
622 | * get the current pointer | |
623 | */ | |
624 | static snd_pcm_uframes_t | |
625 | snd_nm256_playback_pointer(snd_pcm_substream_t * substream) | |
626 | { | |
627 | nm256_t *chip = snd_pcm_substream_chip(substream); | |
628 | nm256_stream_t *s = (nm256_stream_t*)substream->runtime->private_data; | |
629 | unsigned long curp; | |
630 | ||
631 | snd_assert(s, return 0); | |
632 | curp = snd_nm256_readl(chip, NM_PBUFFER_CURRP) - (unsigned long)s->buf; | |
633 | curp %= s->dma_size; | |
634 | return bytes_to_frames(substream->runtime, curp); | |
635 | } | |
636 | ||
637 | static snd_pcm_uframes_t | |
638 | snd_nm256_capture_pointer(snd_pcm_substream_t * substream) | |
639 | { | |
640 | nm256_t *chip = snd_pcm_substream_chip(substream); | |
641 | nm256_stream_t *s = (nm256_stream_t*)substream->runtime->private_data; | |
642 | unsigned long curp; | |
643 | ||
644 | snd_assert(s != NULL, return 0); | |
645 | curp = snd_nm256_readl(chip, NM_RBUFFER_CURRP) - (unsigned long)s->buf; | |
646 | curp %= s->dma_size; | |
647 | return bytes_to_frames(substream->runtime, curp); | |
648 | } | |
649 | ||
650 | /* Remapped I/O space can be accessible as pointer on i386 */ | |
651 | /* This might be changed in the future */ | |
652 | #ifndef __i386__ | |
653 | /* | |
654 | * silence / copy for playback | |
655 | */ | |
656 | static int | |
657 | snd_nm256_playback_silence(snd_pcm_substream_t *substream, | |
658 | int channel, /* not used (interleaved data) */ | |
659 | snd_pcm_uframes_t pos, | |
660 | snd_pcm_uframes_t count) | |
661 | { | |
662 | snd_pcm_runtime_t *runtime = substream->runtime; | |
663 | nm256_stream_t *s = (nm256_stream_t*)runtime->private_data; | |
664 | count = frames_to_bytes(runtime, count); | |
665 | pos = frames_to_bytes(runtime, pos); | |
666 | memset_io(s->bufptr + pos, 0, count); | |
667 | return 0; | |
668 | } | |
669 | ||
670 | static int | |
671 | snd_nm256_playback_copy(snd_pcm_substream_t *substream, | |
672 | int channel, /* not used (interleaved data) */ | |
673 | snd_pcm_uframes_t pos, | |
674 | void __user *src, | |
675 | snd_pcm_uframes_t count) | |
676 | { | |
677 | snd_pcm_runtime_t *runtime = substream->runtime; | |
678 | nm256_stream_t *s = (nm256_stream_t*)runtime->private_data; | |
679 | count = frames_to_bytes(runtime, count); | |
680 | pos = frames_to_bytes(runtime, pos); | |
681 | if (copy_from_user_toio(s->bufptr + pos, src, count)) | |
682 | return -EFAULT; | |
683 | return 0; | |
684 | } | |
685 | ||
686 | /* | |
687 | * copy to user | |
688 | */ | |
689 | static int | |
690 | snd_nm256_capture_copy(snd_pcm_substream_t *substream, | |
691 | int channel, /* not used (interleaved data) */ | |
692 | snd_pcm_uframes_t pos, | |
693 | void __user *dst, | |
694 | snd_pcm_uframes_t count) | |
695 | { | |
696 | snd_pcm_runtime_t *runtime = substream->runtime; | |
697 | nm256_stream_t *s = (nm256_stream_t*)runtime->private_data; | |
698 | count = frames_to_bytes(runtime, count); | |
699 | pos = frames_to_bytes(runtime, pos); | |
700 | if (copy_to_user_fromio(dst, s->bufptr + pos, count)) | |
701 | return -EFAULT; | |
702 | return 0; | |
703 | } | |
704 | ||
705 | #endif /* !__i386__ */ | |
706 | ||
707 | ||
708 | /* | |
709 | * update playback/capture watermarks | |
710 | */ | |
711 | ||
712 | /* spinlock held! */ | |
713 | static void | |
714 | snd_nm256_playback_update(nm256_t *chip) | |
715 | { | |
716 | nm256_stream_t *s; | |
717 | ||
718 | s = &chip->streams[SNDRV_PCM_STREAM_PLAYBACK]; | |
719 | if (s->running && s->substream) { | |
720 | spin_unlock(&chip->reg_lock); | |
721 | snd_pcm_period_elapsed(s->substream); | |
722 | spin_lock(&chip->reg_lock); | |
723 | snd_nm256_playback_mark(chip, s); | |
724 | } | |
725 | } | |
726 | ||
727 | /* spinlock held! */ | |
728 | static void | |
729 | snd_nm256_capture_update(nm256_t *chip) | |
730 | { | |
731 | nm256_stream_t *s; | |
732 | ||
733 | s = &chip->streams[SNDRV_PCM_STREAM_CAPTURE]; | |
734 | if (s->running && s->substream) { | |
735 | spin_unlock(&chip->reg_lock); | |
736 | snd_pcm_period_elapsed(s->substream); | |
737 | spin_lock(&chip->reg_lock); | |
738 | snd_nm256_capture_mark(chip, s); | |
739 | } | |
740 | } | |
741 | ||
742 | /* | |
743 | * hardware info | |
744 | */ | |
745 | static snd_pcm_hardware_t snd_nm256_playback = | |
746 | { | |
747 | .info = SNDRV_PCM_INFO_MMAP_IOMEM |SNDRV_PCM_INFO_MMAP_VALID | | |
748 | SNDRV_PCM_INFO_INTERLEAVED | | |
749 | /*SNDRV_PCM_INFO_PAUSE |*/ | |
750 | SNDRV_PCM_INFO_RESUME, | |
751 | .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, | |
752 | .rates = SNDRV_PCM_RATE_KNOT/*24k*/ | SNDRV_PCM_RATE_8000_48000, | |
753 | .rate_min = 8000, | |
754 | .rate_max = 48000, | |
755 | .channels_min = 1, | |
756 | .channels_max = 2, | |
757 | .periods_min = 2, | |
758 | .periods_max = 1024, | |
759 | .buffer_bytes_max = 128 * 1024, | |
760 | .period_bytes_min = 256, | |
761 | .period_bytes_max = 128 * 1024, | |
762 | }; | |
763 | ||
764 | static snd_pcm_hardware_t snd_nm256_capture = | |
765 | { | |
766 | .info = SNDRV_PCM_INFO_MMAP_IOMEM | SNDRV_PCM_INFO_MMAP_VALID | | |
767 | SNDRV_PCM_INFO_INTERLEAVED | | |
768 | /*SNDRV_PCM_INFO_PAUSE |*/ | |
769 | SNDRV_PCM_INFO_RESUME, | |
770 | .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, | |
771 | .rates = SNDRV_PCM_RATE_KNOT/*24k*/ | SNDRV_PCM_RATE_8000_48000, | |
772 | .rate_min = 8000, | |
773 | .rate_max = 48000, | |
774 | .channels_min = 1, | |
775 | .channels_max = 2, | |
776 | .periods_min = 2, | |
777 | .periods_max = 1024, | |
778 | .buffer_bytes_max = 128 * 1024, | |
779 | .period_bytes_min = 256, | |
780 | .period_bytes_max = 128 * 1024, | |
781 | }; | |
782 | ||
783 | ||
784 | /* set dma transfer size */ | |
785 | static int snd_nm256_pcm_hw_params(snd_pcm_substream_t *substream, snd_pcm_hw_params_t *hw_params) | |
786 | { | |
787 | /* area and addr are already set and unchanged */ | |
788 | substream->runtime->dma_bytes = params_buffer_bytes(hw_params); | |
789 | return 0; | |
790 | } | |
791 | ||
792 | /* | |
793 | * open | |
794 | */ | |
795 | static void snd_nm256_setup_stream(nm256_t *chip, nm256_stream_t *s, | |
796 | snd_pcm_substream_t *substream, | |
797 | snd_pcm_hardware_t *hw_ptr) | |
798 | { | |
799 | snd_pcm_runtime_t *runtime = substream->runtime; | |
800 | ||
801 | s->running = 0; | |
802 | runtime->hw = *hw_ptr; | |
803 | runtime->hw.buffer_bytes_max = s->bufsize; | |
804 | runtime->hw.period_bytes_max = s->bufsize / 2; | |
805 | runtime->dma_area = (void*) s->bufptr; | |
806 | runtime->dma_addr = s->bufptr_addr; | |
807 | runtime->dma_bytes = s->bufsize; | |
808 | runtime->private_data = s; | |
809 | s->substream = substream; | |
810 | ||
811 | snd_pcm_set_sync(substream); | |
812 | snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, | |
813 | &constraints_rates); | |
814 | } | |
815 | ||
816 | static int | |
817 | snd_nm256_playback_open(snd_pcm_substream_t *substream) | |
818 | { | |
819 | nm256_t *chip = snd_pcm_substream_chip(substream); | |
820 | ||
821 | snd_nm256_setup_stream(chip, &chip->streams[SNDRV_PCM_STREAM_PLAYBACK], | |
822 | substream, &snd_nm256_playback); | |
823 | return 0; | |
824 | } | |
825 | ||
826 | static int | |
827 | snd_nm256_capture_open(snd_pcm_substream_t *substream) | |
828 | { | |
829 | nm256_t *chip = snd_pcm_substream_chip(substream); | |
830 | ||
831 | snd_nm256_setup_stream(chip, &chip->streams[SNDRV_PCM_STREAM_CAPTURE], | |
832 | substream, &snd_nm256_capture); | |
833 | return 0; | |
834 | } | |
835 | ||
836 | /* | |
837 | * close - we don't have to do special.. | |
838 | */ | |
839 | static int | |
840 | snd_nm256_playback_close(snd_pcm_substream_t *substream) | |
841 | { | |
842 | return 0; | |
843 | } | |
844 | ||
845 | ||
846 | static int | |
847 | snd_nm256_capture_close(snd_pcm_substream_t *substream) | |
848 | { | |
849 | return 0; | |
850 | } | |
851 | ||
852 | /* | |
853 | * create a pcm instance | |
854 | */ | |
855 | static snd_pcm_ops_t snd_nm256_playback_ops = { | |
856 | .open = snd_nm256_playback_open, | |
857 | .close = snd_nm256_playback_close, | |
858 | .ioctl = snd_pcm_lib_ioctl, | |
859 | .hw_params = snd_nm256_pcm_hw_params, | |
860 | .prepare = snd_nm256_pcm_prepare, | |
861 | .trigger = snd_nm256_playback_trigger, | |
862 | .pointer = snd_nm256_playback_pointer, | |
863 | #ifndef __i386__ | |
864 | .copy = snd_nm256_playback_copy, | |
865 | .silence = snd_nm256_playback_silence, | |
866 | #endif | |
867 | .mmap = snd_pcm_lib_mmap_iomem, | |
868 | }; | |
869 | ||
870 | static snd_pcm_ops_t snd_nm256_capture_ops = { | |
871 | .open = snd_nm256_capture_open, | |
872 | .close = snd_nm256_capture_close, | |
873 | .ioctl = snd_pcm_lib_ioctl, | |
874 | .hw_params = snd_nm256_pcm_hw_params, | |
875 | .prepare = snd_nm256_pcm_prepare, | |
876 | .trigger = snd_nm256_capture_trigger, | |
877 | .pointer = snd_nm256_capture_pointer, | |
878 | #ifndef __i386__ | |
879 | .copy = snd_nm256_capture_copy, | |
880 | #endif | |
881 | .mmap = snd_pcm_lib_mmap_iomem, | |
882 | }; | |
883 | ||
884 | static int __devinit | |
885 | snd_nm256_pcm(nm256_t *chip, int device) | |
886 | { | |
887 | snd_pcm_t *pcm; | |
888 | int i, err; | |
889 | ||
890 | for (i = 0; i < 2; i++) { | |
891 | nm256_stream_t *s = &chip->streams[i]; | |
892 | s->bufptr = chip->buffer + (s->buf - chip->buffer_start); | |
893 | s->bufptr_addr = chip->buffer_addr + (s->buf - chip->buffer_start); | |
894 | } | |
895 | ||
896 | err = snd_pcm_new(chip->card, chip->card->driver, device, | |
897 | 1, 1, &pcm); | |
898 | if (err < 0) | |
899 | return err; | |
900 | ||
901 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_nm256_playback_ops); | |
902 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_nm256_capture_ops); | |
903 | ||
904 | pcm->private_data = chip; | |
905 | pcm->info_flags = 0; | |
906 | chip->pcm = pcm; | |
907 | ||
908 | return 0; | |
909 | } | |
910 | ||
911 | ||
912 | /* | |
913 | * Initialize the hardware. | |
914 | */ | |
915 | static void | |
916 | snd_nm256_init_chip(nm256_t *chip) | |
917 | { | |
918 | spin_lock_irq(&chip->reg_lock); | |
919 | /* Reset everything. */ | |
920 | snd_nm256_writeb(chip, 0x0, 0x11); | |
921 | snd_nm256_writew(chip, 0x214, 0); | |
922 | /* stop sounds.. */ | |
923 | //snd_nm256_playback_stop(chip); | |
924 | //snd_nm256_capture_stop(chip); | |
925 | spin_unlock_irq(&chip->reg_lock); | |
926 | } | |
927 | ||
928 | ||
929 | inline static void | |
930 | snd_nm256_intr_check(nm256_t *chip) | |
931 | { | |
932 | if (chip->badintrcount++ > 1000) { | |
933 | /* | |
934 | * I'm not sure if the best thing is to stop the card from | |
935 | * playing or just release the interrupt (after all, we're in | |
936 | * a bad situation, so doing fancy stuff may not be such a good | |
937 | * idea). | |
938 | * | |
939 | * I worry about the card engine continuing to play noise | |
940 | * over and over, however--that could become a very | |
941 | * obnoxious problem. And we know that when this usually | |
942 | * happens things are fairly safe, it just means the user's | |
943 | * inserted a PCMCIA card and someone's spamming us with IRQ 9s. | |
944 | */ | |
945 | if (chip->streams[SNDRV_PCM_STREAM_PLAYBACK].running) | |
946 | snd_nm256_playback_stop(chip); | |
947 | if (chip->streams[SNDRV_PCM_STREAM_CAPTURE].running) | |
948 | snd_nm256_capture_stop(chip); | |
949 | chip->badintrcount = 0; | |
950 | } | |
951 | } | |
952 | ||
953 | /* | |
954 | * Handle a potential interrupt for the device referred to by DEV_ID. | |
955 | * | |
956 | * I don't like the cut-n-paste job here either between the two routines, | |
957 | * but there are sufficient differences between the two interrupt handlers | |
958 | * that parameterizing it isn't all that great either. (Could use a macro, | |
959 | * I suppose...yucky bleah.) | |
960 | */ | |
961 | ||
962 | static irqreturn_t | |
963 | snd_nm256_interrupt(int irq, void *dev_id, struct pt_regs *dummy) | |
964 | { | |
965 | nm256_t *chip = dev_id; | |
966 | u16 status; | |
967 | u8 cbyte; | |
968 | ||
969 | status = snd_nm256_readw(chip, NM_INT_REG); | |
970 | ||
971 | /* Not ours. */ | |
972 | if (status == 0) { | |
973 | snd_nm256_intr_check(chip); | |
974 | return IRQ_NONE; | |
975 | } | |
976 | ||
977 | chip->badintrcount = 0; | |
978 | ||
979 | /* Rather boring; check for individual interrupts and process them. */ | |
980 | ||
981 | spin_lock(&chip->reg_lock); | |
982 | if (status & NM_PLAYBACK_INT) { | |
983 | status &= ~NM_PLAYBACK_INT; | |
984 | NM_ACK_INT(chip, NM_PLAYBACK_INT); | |
985 | snd_nm256_playback_update(chip); | |
986 | } | |
987 | ||
988 | if (status & NM_RECORD_INT) { | |
989 | status &= ~NM_RECORD_INT; | |
990 | NM_ACK_INT(chip, NM_RECORD_INT); | |
991 | snd_nm256_capture_update(chip); | |
992 | } | |
993 | ||
994 | if (status & NM_MISC_INT_1) { | |
995 | status &= ~NM_MISC_INT_1; | |
996 | NM_ACK_INT(chip, NM_MISC_INT_1); | |
997 | snd_printd("NM256: Got misc interrupt #1\n"); | |
998 | snd_nm256_writew(chip, NM_INT_REG, 0x8000); | |
999 | cbyte = snd_nm256_readb(chip, 0x400); | |
1000 | snd_nm256_writeb(chip, 0x400, cbyte | 2); | |
1001 | } | |
1002 | ||
1003 | if (status & NM_MISC_INT_2) { | |
1004 | status &= ~NM_MISC_INT_2; | |
1005 | NM_ACK_INT(chip, NM_MISC_INT_2); | |
1006 | snd_printd("NM256: Got misc interrupt #2\n"); | |
1007 | cbyte = snd_nm256_readb(chip, 0x400); | |
1008 | snd_nm256_writeb(chip, 0x400, cbyte & ~2); | |
1009 | } | |
1010 | ||
1011 | /* Unknown interrupt. */ | |
1012 | if (status) { | |
1013 | snd_printd("NM256: Fire in the hole! Unknown status 0x%x\n", | |
1014 | status); | |
1015 | /* Pray. */ | |
1016 | NM_ACK_INT(chip, status); | |
1017 | } | |
1018 | ||
1019 | spin_unlock(&chip->reg_lock); | |
1020 | return IRQ_HANDLED; | |
1021 | } | |
1022 | ||
1023 | /* | |
1024 | * Handle a potential interrupt for the device referred to by DEV_ID. | |
1025 | * This handler is for the 256ZX, and is very similar to the non-ZX | |
1026 | * routine. | |
1027 | */ | |
1028 | ||
1029 | static irqreturn_t | |
1030 | snd_nm256_interrupt_zx(int irq, void *dev_id, struct pt_regs *dummy) | |
1031 | { | |
1032 | nm256_t *chip = dev_id; | |
1033 | u32 status; | |
1034 | u8 cbyte; | |
1035 | ||
1036 | status = snd_nm256_readl(chip, NM_INT_REG); | |
1037 | ||
1038 | /* Not ours. */ | |
1039 | if (status == 0) { | |
1040 | snd_nm256_intr_check(chip); | |
1041 | return IRQ_NONE; | |
1042 | } | |
1043 | ||
1044 | chip->badintrcount = 0; | |
1045 | ||
1046 | /* Rather boring; check for individual interrupts and process them. */ | |
1047 | ||
1048 | spin_lock(&chip->reg_lock); | |
1049 | if (status & NM2_PLAYBACK_INT) { | |
1050 | status &= ~NM2_PLAYBACK_INT; | |
1051 | NM2_ACK_INT(chip, NM2_PLAYBACK_INT); | |
1052 | snd_nm256_playback_update(chip); | |
1053 | } | |
1054 | ||
1055 | if (status & NM2_RECORD_INT) { | |
1056 | status &= ~NM2_RECORD_INT; | |
1057 | NM2_ACK_INT(chip, NM2_RECORD_INT); | |
1058 | snd_nm256_capture_update(chip); | |
1059 | } | |
1060 | ||
1061 | if (status & NM2_MISC_INT_1) { | |
1062 | status &= ~NM2_MISC_INT_1; | |
1063 | NM2_ACK_INT(chip, NM2_MISC_INT_1); | |
1064 | snd_printd("NM256: Got misc interrupt #1\n"); | |
1065 | cbyte = snd_nm256_readb(chip, 0x400); | |
1066 | snd_nm256_writeb(chip, 0x400, cbyte | 2); | |
1067 | } | |
1068 | ||
1069 | if (status & NM2_MISC_INT_2) { | |
1070 | status &= ~NM2_MISC_INT_2; | |
1071 | NM2_ACK_INT(chip, NM2_MISC_INT_2); | |
1072 | snd_printd("NM256: Got misc interrupt #2\n"); | |
1073 | cbyte = snd_nm256_readb(chip, 0x400); | |
1074 | snd_nm256_writeb(chip, 0x400, cbyte & ~2); | |
1075 | } | |
1076 | ||
1077 | /* Unknown interrupt. */ | |
1078 | if (status) { | |
1079 | snd_printd("NM256: Fire in the hole! Unknown status 0x%x\n", | |
1080 | status); | |
1081 | /* Pray. */ | |
1082 | NM2_ACK_INT(chip, status); | |
1083 | } | |
1084 | ||
1085 | spin_unlock(&chip->reg_lock); | |
1086 | return IRQ_HANDLED; | |
1087 | } | |
1088 | ||
1089 | /* | |
1090 | * AC97 interface | |
1091 | */ | |
1092 | ||
1093 | /* | |
1094 | * Waits for the mixer to become ready to be written; returns a zero value | |
1095 | * if it timed out. | |
1096 | */ | |
1097 | static int | |
1098 | snd_nm256_ac97_ready(nm256_t *chip) | |
1099 | { | |
1100 | int timeout = 10; | |
1101 | u32 testaddr; | |
1102 | u16 testb; | |
1103 | ||
1104 | testaddr = chip->mixer_status_offset; | |
1105 | testb = chip->mixer_status_mask; | |
1106 | ||
1107 | /* | |
1108 | * Loop around waiting for the mixer to become ready. | |
1109 | */ | |
1110 | while (timeout-- > 0) { | |
1111 | if ((snd_nm256_readw(chip, testaddr) & testb) == 0) | |
1112 | return 1; | |
1113 | udelay(100); | |
1114 | } | |
1115 | return 0; | |
1116 | } | |
1117 | ||
1118 | /* | |
1119 | */ | |
1120 | static unsigned short | |
1121 | snd_nm256_ac97_read(ac97_t *ac97, unsigned short reg) | |
1122 | { | |
1123 | nm256_t *chip = ac97->private_data; | |
1124 | int res; | |
1125 | ||
1126 | if (reg >= 128) | |
1127 | return 0; | |
1128 | ||
1129 | if (! snd_nm256_ac97_ready(chip)) | |
1130 | return 0; | |
1131 | res = snd_nm256_readw(chip, chip->mixer_base + reg); | |
1132 | /* Magic delay. Bleah yucky. */ | |
1133 | msleep(1); | |
1134 | return res; | |
1135 | } | |
1136 | ||
1137 | /* | |
1138 | */ | |
1139 | static void | |
1140 | snd_nm256_ac97_write(ac97_t *ac97, | |
1141 | unsigned short reg, unsigned short val) | |
1142 | { | |
1143 | nm256_t *chip = ac97->private_data; | |
1144 | int tries = 2; | |
1145 | u32 base; | |
1146 | ||
1147 | base = chip->mixer_base; | |
1148 | ||
1149 | snd_nm256_ac97_ready(chip); | |
1150 | ||
1151 | /* Wait for the write to take, too. */ | |
1152 | while (tries-- > 0) { | |
1153 | snd_nm256_writew(chip, base + reg, val); | |
1154 | msleep(1); /* a little delay here seems better.. */ | |
1155 | if (snd_nm256_ac97_ready(chip)) | |
1156 | return; | |
1157 | } | |
1158 | snd_printd("nm256: ac97 codec not ready..\n"); | |
1159 | } | |
1160 | ||
1161 | /* initialize the ac97 into a known state */ | |
1162 | static void | |
1163 | snd_nm256_ac97_reset(ac97_t *ac97) | |
1164 | { | |
1165 | nm256_t *chip = ac97->private_data; | |
1166 | ||
1167 | /* Reset the mixer. 'Tis magic! */ | |
1168 | snd_nm256_writeb(chip, 0x6c0, 1); | |
1169 | if (! chip->reset_workaround) { | |
1170 | /* Dell latitude LS will lock up by this */ | |
1171 | snd_nm256_writeb(chip, 0x6cc, 0x87); | |
1172 | } | |
1173 | snd_nm256_writeb(chip, 0x6cc, 0x80); | |
1174 | snd_nm256_writeb(chip, 0x6cc, 0x0); | |
1175 | } | |
1176 | ||
1177 | /* create an ac97 mixer interface */ | |
1178 | static int __devinit | |
1179 | snd_nm256_mixer(nm256_t *chip) | |
1180 | { | |
1181 | ac97_bus_t *pbus; | |
1182 | ac97_template_t ac97; | |
1183 | int i, err; | |
1184 | static ac97_bus_ops_t ops = { | |
1185 | .reset = snd_nm256_ac97_reset, | |
1186 | .write = snd_nm256_ac97_write, | |
1187 | .read = snd_nm256_ac97_read, | |
1188 | }; | |
1189 | /* looks like nm256 hangs up when unexpected registers are touched... */ | |
1190 | static int mixer_regs[] = { | |
1191 | AC97_MASTER, AC97_HEADPHONE, AC97_MASTER_MONO, | |
1192 | AC97_PC_BEEP, AC97_PHONE, AC97_MIC, AC97_LINE, AC97_CD, | |
1193 | AC97_VIDEO, AC97_AUX, AC97_PCM, AC97_REC_SEL, | |
1194 | AC97_REC_GAIN, AC97_GENERAL_PURPOSE, AC97_3D_CONTROL, | |
1195 | AC97_EXTENDED_ID, | |
1196 | AC97_VENDOR_ID1, AC97_VENDOR_ID2, | |
1197 | -1 | |
1198 | }; | |
1199 | ||
1200 | if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0) | |
1201 | return err; | |
1202 | ||
1203 | memset(&ac97, 0, sizeof(ac97)); | |
1204 | ac97.scaps = AC97_SCAP_AUDIO; /* we support audio! */ | |
1205 | ac97.limited_regs = 1; | |
1206 | for (i = 0; mixer_regs[i] >= 0; i++) | |
1207 | set_bit(mixer_regs[i], ac97.reg_accessed); | |
1208 | ac97.private_data = chip; | |
1209 | err = snd_ac97_mixer(pbus, &ac97, &chip->ac97); | |
1210 | if (err < 0) | |
1211 | return err; | |
1212 | if (! (chip->ac97->id & (0xf0000000))) { | |
1213 | /* looks like an invalid id */ | |
1214 | sprintf(chip->card->mixername, "%s AC97", chip->card->driver); | |
1215 | } | |
1216 | return 0; | |
1217 | } | |
1218 | ||
1219 | /* | |
1220 | * See if the signature left by the NM256 BIOS is intact; if so, we use | |
1221 | * the associated address as the end of our audio buffer in the video | |
1222 | * RAM. | |
1223 | */ | |
1224 | ||
1225 | static int __devinit | |
1226 | snd_nm256_peek_for_sig(nm256_t *chip) | |
1227 | { | |
1228 | /* The signature is located 1K below the end of video RAM. */ | |
1229 | void __iomem *temp; | |
1230 | /* Default buffer end is 5120 bytes below the top of RAM. */ | |
1231 | unsigned long pointer_found = chip->buffer_end - 0x1400; | |
1232 | u32 sig; | |
1233 | ||
1234 | temp = ioremap_nocache(chip->buffer_addr + chip->buffer_end - 0x400, 16); | |
1235 | if (temp == NULL) { | |
1236 | snd_printk("Unable to scan for card signature in video RAM\n"); | |
1237 | return -EBUSY; | |
1238 | } | |
1239 | ||
1240 | sig = readl(temp); | |
1241 | if ((sig & NM_SIG_MASK) == NM_SIGNATURE) { | |
1242 | u32 pointer = readl(temp + 4); | |
1243 | ||
1244 | /* | |
1245 | * If it's obviously invalid, don't use it | |
1246 | */ | |
1247 | if (pointer == 0xffffffff || | |
1248 | pointer < chip->buffer_size || | |
1249 | pointer > chip->buffer_end) { | |
1250 | snd_printk("invalid signature found: 0x%x\n", pointer); | |
1251 | iounmap(temp); | |
1252 | return -ENODEV; | |
1253 | } else { | |
1254 | pointer_found = pointer; | |
1255 | printk(KERN_INFO "nm256: found card signature in video RAM: 0x%x\n", pointer); | |
1256 | } | |
1257 | } | |
1258 | ||
1259 | iounmap(temp); | |
1260 | chip->buffer_end = pointer_found; | |
1261 | ||
1262 | return 0; | |
1263 | } | |
1264 | ||
1265 | #ifdef CONFIG_PM | |
1266 | /* | |
1267 | * APM event handler, so the card is properly reinitialized after a power | |
1268 | * event. | |
1269 | */ | |
1270 | static int nm256_suspend(snd_card_t *card, pm_message_t state) | |
1271 | { | |
1272 | nm256_t *chip = card->pm_private_data; | |
1273 | ||
1274 | snd_pcm_suspend_all(chip->pcm); | |
1275 | snd_ac97_suspend(chip->ac97); | |
1276 | chip->coeffs_current = 0; | |
1277 | pci_disable_device(chip->pci); | |
1278 | return 0; | |
1279 | } | |
1280 | ||
1281 | static int nm256_resume(snd_card_t *card) | |
1282 | { | |
1283 | nm256_t *chip = card->pm_private_data; | |
1284 | ||
1285 | /* Perform a full reset on the hardware */ | |
1286 | pci_enable_device(chip->pci); | |
1287 | snd_nm256_init_chip(chip); | |
1288 | ||
1289 | /* restore ac97 */ | |
1290 | snd_ac97_resume(chip->ac97); | |
1291 | ||
1292 | return 0; | |
1293 | } | |
1294 | #endif /* CONFIG_PM */ | |
1295 | ||
1296 | static int snd_nm256_free(nm256_t *chip) | |
1297 | { | |
1298 | if (chip->streams[SNDRV_PCM_STREAM_PLAYBACK].running) | |
1299 | snd_nm256_playback_stop(chip); | |
1300 | if (chip->streams[SNDRV_PCM_STREAM_CAPTURE].running) | |
1301 | snd_nm256_capture_stop(chip); | |
1302 | ||
1303 | if (chip->irq >= 0) | |
1304 | synchronize_irq(chip->irq); | |
1305 | ||
1306 | if (chip->cport) | |
1307 | iounmap(chip->cport); | |
1308 | if (chip->buffer) | |
1309 | iounmap(chip->buffer); | |
1310 | if (chip->res_cport) { | |
1311 | release_resource(chip->res_cport); | |
1312 | kfree_nocheck(chip->res_cport); | |
1313 | } | |
1314 | if (chip->res_buffer) { | |
1315 | release_resource(chip->res_buffer); | |
1316 | kfree_nocheck(chip->res_buffer); | |
1317 | } | |
1318 | if (chip->irq >= 0) | |
1319 | free_irq(chip->irq, (void*)chip); | |
1320 | ||
1321 | pci_disable_device(chip->pci); | |
1322 | kfree(chip); | |
1323 | return 0; | |
1324 | } | |
1325 | ||
1326 | static int snd_nm256_dev_free(snd_device_t *device) | |
1327 | { | |
1328 | nm256_t *chip = device->device_data; | |
1329 | return snd_nm256_free(chip); | |
1330 | } | |
1331 | ||
1332 | static int __devinit | |
1333 | snd_nm256_create(snd_card_t *card, struct pci_dev *pci, | |
1334 | int play_bufsize, int capt_bufsize, | |
1335 | int force_load, | |
1336 | u32 buffertop, | |
1337 | int usecache, | |
1338 | nm256_t **chip_ret) | |
1339 | { | |
1340 | nm256_t *chip; | |
1341 | int err, pval; | |
1342 | static snd_device_ops_t ops = { | |
1343 | .dev_free = snd_nm256_dev_free, | |
1344 | }; | |
1345 | u32 addr; | |
1346 | ||
1347 | *chip_ret = NULL; | |
1348 | ||
1349 | if ((err = pci_enable_device(pci)) < 0) | |
1350 | return err; | |
1351 | ||
1352 | chip = kcalloc(1, sizeof(*chip), GFP_KERNEL); | |
1353 | if (chip == NULL) { | |
1354 | pci_disable_device(pci); | |
1355 | return -ENOMEM; | |
1356 | } | |
1357 | ||
1358 | chip->card = card; | |
1359 | chip->pci = pci; | |
1360 | chip->use_cache = usecache; | |
1361 | spin_lock_init(&chip->reg_lock); | |
1362 | chip->irq = -1; | |
1363 | ||
1364 | chip->streams[SNDRV_PCM_STREAM_PLAYBACK].bufsize = play_bufsize; | |
1365 | chip->streams[SNDRV_PCM_STREAM_CAPTURE].bufsize = capt_bufsize; | |
1366 | ||
1367 | /* | |
1368 | * The NM256 has two memory ports. The first port is nothing | |
1369 | * more than a chunk of video RAM, which is used as the I/O ring | |
1370 | * buffer. The second port has the actual juicy stuff (like the | |
1371 | * mixer and the playback engine control registers). | |
1372 | */ | |
1373 | ||
1374 | chip->buffer_addr = pci_resource_start(pci, 0); | |
1375 | chip->cport_addr = pci_resource_start(pci, 1); | |
1376 | ||
1377 | /* Init the memory port info. */ | |
1378 | /* remap control port (#2) */ | |
1379 | chip->res_cport = request_mem_region(chip->cport_addr, NM_PORT2_SIZE, | |
1380 | card->driver); | |
1381 | if (chip->res_cport == NULL) { | |
1382 | snd_printk("memory region 0x%lx (size 0x%x) busy\n", | |
1383 | chip->cport_addr, NM_PORT2_SIZE); | |
1384 | err = -EBUSY; | |
1385 | goto __error; | |
1386 | } | |
1387 | chip->cport = ioremap_nocache(chip->cport_addr, NM_PORT2_SIZE); | |
1388 | if (chip->cport == NULL) { | |
1389 | snd_printk("unable to map control port %lx\n", chip->cport_addr); | |
1390 | err = -ENOMEM; | |
1391 | goto __error; | |
1392 | } | |
1393 | ||
1394 | if (!strcmp(card->driver, "NM256AV")) { | |
1395 | /* Ok, try to see if this is a non-AC97 version of the hardware. */ | |
1396 | pval = snd_nm256_readw(chip, NM_MIXER_PRESENCE); | |
1397 | if ((pval & NM_PRESENCE_MASK) != NM_PRESENCE_VALUE) { | |
1398 | if (! force_load) { | |
1399 | printk(KERN_ERR "nm256: no ac97 is found!\n"); | |
1400 | printk(KERN_ERR " force the driver to load by passing in the module parameter\n"); | |
1401 | printk(KERN_ERR " force_ac97=1\n"); | |
1402 | printk(KERN_ERR " or try sb16 or cs423x drivers instead.\n"); | |
1403 | err = -ENXIO; | |
1404 | goto __error; | |
1405 | } | |
1406 | } | |
1407 | chip->buffer_end = 2560 * 1024; | |
1408 | chip->interrupt = snd_nm256_interrupt; | |
1409 | chip->mixer_status_offset = NM_MIXER_STATUS_OFFSET; | |
1410 | chip->mixer_status_mask = NM_MIXER_READY_MASK; | |
1411 | } else { | |
1412 | /* Not sure if there is any relevant detect for the ZX or not. */ | |
1413 | if (snd_nm256_readb(chip, 0xa0b) != 0) | |
1414 | chip->buffer_end = 6144 * 1024; | |
1415 | else | |
1416 | chip->buffer_end = 4096 * 1024; | |
1417 | ||
1418 | chip->interrupt = snd_nm256_interrupt_zx; | |
1419 | chip->mixer_status_offset = NM2_MIXER_STATUS_OFFSET; | |
1420 | chip->mixer_status_mask = NM2_MIXER_READY_MASK; | |
1421 | } | |
1422 | ||
1423 | chip->buffer_size = chip->streams[SNDRV_PCM_STREAM_PLAYBACK].bufsize + chip->streams[SNDRV_PCM_STREAM_CAPTURE].bufsize; | |
1424 | if (chip->use_cache) | |
1425 | chip->buffer_size += NM_TOTAL_COEFF_COUNT * 4; | |
1426 | else | |
1427 | chip->buffer_size += NM_MAX_PLAYBACK_COEF_SIZE + NM_MAX_RECORD_COEF_SIZE; | |
1428 | ||
1429 | if (buffertop >= chip->buffer_size && buffertop < chip->buffer_end) | |
1430 | chip->buffer_end = buffertop; | |
1431 | else { | |
1432 | /* get buffer end pointer from signature */ | |
1433 | if ((err = snd_nm256_peek_for_sig(chip)) < 0) | |
1434 | goto __error; | |
1435 | } | |
1436 | ||
1437 | chip->buffer_start = chip->buffer_end - chip->buffer_size; | |
1438 | chip->buffer_addr += chip->buffer_start; | |
1439 | ||
1440 | printk(KERN_INFO "nm256: Mapping port 1 from 0x%x - 0x%x\n", | |
1441 | chip->buffer_start, chip->buffer_end); | |
1442 | ||
1443 | chip->res_buffer = request_mem_region(chip->buffer_addr, | |
1444 | chip->buffer_size, | |
1445 | card->driver); | |
1446 | if (chip->res_buffer == NULL) { | |
1447 | snd_printk("nm256: buffer 0x%lx (size 0x%x) busy\n", | |
1448 | chip->buffer_addr, chip->buffer_size); | |
1449 | err = -EBUSY; | |
1450 | goto __error; | |
1451 | } | |
1452 | chip->buffer = ioremap_nocache(chip->buffer_addr, chip->buffer_size); | |
1453 | if (chip->buffer == NULL) { | |
1454 | err = -ENOMEM; | |
1455 | snd_printk("unable to map ring buffer at %lx\n", chip->buffer_addr); | |
1456 | goto __error; | |
1457 | } | |
1458 | ||
1459 | /* set offsets */ | |
1460 | addr = chip->buffer_start; | |
1461 | chip->streams[SNDRV_PCM_STREAM_PLAYBACK].buf = addr; | |
1462 | addr += chip->streams[SNDRV_PCM_STREAM_PLAYBACK].bufsize; | |
1463 | chip->streams[SNDRV_PCM_STREAM_CAPTURE].buf = addr; | |
1464 | addr += chip->streams[SNDRV_PCM_STREAM_CAPTURE].bufsize; | |
1465 | if (chip->use_cache) { | |
1466 | chip->all_coeff_buf = addr; | |
1467 | } else { | |
1468 | chip->coeff_buf[SNDRV_PCM_STREAM_PLAYBACK] = addr; | |
1469 | addr += NM_MAX_PLAYBACK_COEF_SIZE; | |
1470 | chip->coeff_buf[SNDRV_PCM_STREAM_CAPTURE] = addr; | |
1471 | } | |
1472 | ||
1473 | /* acquire interrupt */ | |
1474 | if (request_irq(pci->irq, chip->interrupt, SA_INTERRUPT|SA_SHIRQ, | |
1475 | card->driver, (void*)chip)) { | |
1476 | err = -EBUSY; | |
1477 | snd_printk("unable to grab IRQ %d\n", pci->irq); | |
1478 | goto __error; | |
1479 | } | |
1480 | chip->irq = pci->irq; | |
1481 | ||
1482 | /* Fixed setting. */ | |
1483 | chip->mixer_base = NM_MIXER_OFFSET; | |
1484 | ||
1485 | chip->coeffs_current = 0; | |
1486 | ||
1487 | snd_nm256_init_chip(chip); | |
1488 | ||
1489 | // pci_set_master(pci); /* needed? */ | |
1490 | ||
1491 | snd_card_set_pm_callback(card, nm256_suspend, nm256_resume, chip); | |
1492 | ||
1493 | if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) | |
1494 | goto __error; | |
1495 | ||
1496 | snd_card_set_dev(card, &pci->dev); | |
1497 | ||
1498 | *chip_ret = chip; | |
1499 | return 0; | |
1500 | ||
1501 | __error: | |
1502 | snd_nm256_free(chip); | |
1503 | return err; | |
1504 | } | |
1505 | ||
1506 | ||
1507 | struct nm256_quirk { | |
1508 | unsigned short vendor; | |
1509 | unsigned short device; | |
1510 | int type; | |
1511 | }; | |
1512 | ||
1513 | enum { NM_BLACKLISTED, NM_RESET_WORKAROUND }; | |
1514 | ||
1515 | static struct nm256_quirk nm256_quirks[] __devinitdata = { | |
1516 | /* HP omnibook 4150 has cs4232 codec internally */ | |
1517 | { .vendor = 0x103c, .device = 0x0007, .type = NM_BLACKLISTED }, | |
1518 | /* Sony PCG-F305 */ | |
1519 | { .vendor = 0x104d, .device = 0x8041, .type = NM_RESET_WORKAROUND }, | |
1520 | /* Dell Latitude LS */ | |
1521 | { .vendor = 0x1028, .device = 0x0080, .type = NM_RESET_WORKAROUND }, | |
1522 | { } /* terminator */ | |
1523 | }; | |
1524 | ||
1525 | ||
1526 | static int __devinit snd_nm256_probe(struct pci_dev *pci, | |
1527 | const struct pci_device_id *pci_id) | |
1528 | { | |
1529 | static int dev; | |
1530 | snd_card_t *card; | |
1531 | nm256_t *chip; | |
1532 | int err; | |
1533 | unsigned int xbuffer_top; | |
1534 | struct nm256_quirk *q; | |
1535 | u16 subsystem_vendor, subsystem_device; | |
1536 | ||
1537 | if (dev >= SNDRV_CARDS) | |
1538 | return -ENODEV; | |
1539 | if (!enable[dev]) { | |
1540 | dev++; | |
1541 | return -ENOENT; | |
1542 | } | |
1543 | ||
1544 | pci_read_config_word(pci, PCI_SUBSYSTEM_VENDOR_ID, &subsystem_vendor); | |
1545 | pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &subsystem_device); | |
1546 | ||
1547 | for (q = nm256_quirks; q->vendor; q++) { | |
1548 | if (q->vendor == subsystem_vendor && q->device == subsystem_device) { | |
1549 | switch (q->type) { | |
1550 | case NM_BLACKLISTED: | |
1551 | printk(KERN_INFO "nm256: The device is blacklisted. Loading stopped\n"); | |
1552 | return -ENODEV; | |
1553 | case NM_RESET_WORKAROUND: | |
1554 | reset_workaround[dev] = 1; | |
1555 | break; | |
1556 | } | |
1557 | } | |
1558 | } | |
1559 | ||
1560 | card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); | |
1561 | if (card == NULL) | |
1562 | return -ENOMEM; | |
1563 | ||
1564 | switch (pci->device) { | |
1565 | case PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO: | |
1566 | strcpy(card->driver, "NM256AV"); | |
1567 | break; | |
1568 | case PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO: | |
1569 | strcpy(card->driver, "NM256ZX"); | |
1570 | break; | |
1571 | case PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO: | |
1572 | strcpy(card->driver, "NM256XL+"); | |
1573 | break; | |
1574 | default: | |
1575 | snd_printk("invalid device id 0x%x\n", pci->device); | |
1576 | snd_card_free(card); | |
1577 | return -EINVAL; | |
1578 | } | |
1579 | ||
1580 | if (vaio_hack[dev]) | |
1581 | xbuffer_top = 0x25a800; /* this avoids conflicts with XFree86 server */ | |
1582 | else | |
1583 | xbuffer_top = buffer_top[dev]; | |
1584 | ||
1585 | if (playback_bufsize[dev] < 4) | |
1586 | playback_bufsize[dev] = 4; | |
1587 | if (playback_bufsize[dev] > 128) | |
1588 | playback_bufsize[dev] = 128; | |
1589 | if (capture_bufsize[dev] < 4) | |
1590 | capture_bufsize[dev] = 4; | |
1591 | if (capture_bufsize[dev] > 128) | |
1592 | capture_bufsize[dev] = 128; | |
1593 | if ((err = snd_nm256_create(card, pci, | |
1594 | playback_bufsize[dev] * 1024, /* in bytes */ | |
1595 | capture_bufsize[dev] * 1024, /* in bytes */ | |
1596 | force_ac97[dev], | |
1597 | xbuffer_top, | |
1598 | use_cache[dev], | |
1599 | &chip)) < 0) { | |
1600 | snd_card_free(card); | |
1601 | return err; | |
1602 | } | |
1603 | ||
1604 | if (reset_workaround[dev]) { | |
1605 | snd_printdd(KERN_INFO "nm256: reset_workaround activated\n"); | |
1606 | chip->reset_workaround = 1; | |
1607 | } | |
1608 | ||
1609 | if ((err = snd_nm256_pcm(chip, 0)) < 0 || | |
1610 | (err = snd_nm256_mixer(chip)) < 0) { | |
1611 | snd_card_free(card); | |
1612 | return err; | |
1613 | } | |
1614 | ||
1615 | sprintf(card->shortname, "NeoMagic %s", card->driver); | |
1616 | sprintf(card->longname, "%s at 0x%lx & 0x%lx, irq %d", | |
1617 | card->shortname, | |
1618 | chip->buffer_addr, chip->cport_addr, chip->irq); | |
1619 | ||
1620 | if ((err = snd_card_register(card)) < 0) { | |
1621 | snd_card_free(card); | |
1622 | return err; | |
1623 | } | |
1624 | ||
1625 | pci_set_drvdata(pci, card); | |
1626 | dev++; | |
1627 | return 0; | |
1628 | } | |
1629 | ||
1630 | static void __devexit snd_nm256_remove(struct pci_dev *pci) | |
1631 | { | |
1632 | snd_card_free(pci_get_drvdata(pci)); | |
1633 | pci_set_drvdata(pci, NULL); | |
1634 | } | |
1635 | ||
1636 | ||
1637 | static struct pci_driver driver = { | |
1638 | .name = "NeoMagic 256", | |
1639 | .id_table = snd_nm256_ids, | |
1640 | .probe = snd_nm256_probe, | |
1641 | .remove = __devexit_p(snd_nm256_remove), | |
1642 | SND_PCI_PM_CALLBACKS | |
1643 | }; | |
1644 | ||
1645 | ||
1646 | static int __init alsa_card_nm256_init(void) | |
1647 | { | |
01d25d46 | 1648 | return pci_register_driver(&driver); |
1da177e4 LT |
1649 | } |
1650 | ||
1651 | static void __exit alsa_card_nm256_exit(void) | |
1652 | { | |
1653 | pci_unregister_driver(&driver); | |
1654 | } | |
1655 | ||
1656 | module_init(alsa_card_nm256_init) | |
1657 | module_exit(alsa_card_nm256_exit) |