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1da177e4 LT |
1 | /* |
2 | * Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si> | |
3 | * Takashi Iwai <tiwai@suse.de> | |
4 | * | |
5 | * SB16ASP/AWE32 CSP control | |
6 | * | |
7 | * CSP microcode loader: | |
8 | * alsa-tools/sb16_csp/ | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
23 | * | |
24 | */ | |
25 | ||
1da177e4 LT |
26 | #include <linux/delay.h> |
27 | #include <linux/init.h> | |
28 | #include <linux/slab.h> | |
29 | #include <sound/core.h> | |
30 | #include <sound/control.h> | |
31 | #include <sound/info.h> | |
32 | #include <sound/sb16_csp.h> | |
33 | #include <sound/initval.h> | |
34 | ||
35 | MODULE_AUTHOR("Uros Bizjak <uros@kss-loka.si>"); | |
36 | MODULE_DESCRIPTION("ALSA driver for SB16 Creative Signal Processor"); | |
37 | MODULE_LICENSE("GPL"); | |
7e0af29d CL |
38 | #ifndef CONFIG_SND_SB16_CSP_FIRMWARE_IN_KERNEL |
39 | MODULE_FIRMWARE("sb16/mulaw_main.csp"); | |
40 | MODULE_FIRMWARE("sb16/alaw_main.csp"); | |
41 | MODULE_FIRMWARE("sb16/ima_adpcm_init.csp"); | |
42 | MODULE_FIRMWARE("sb16/ima_adpcm_playback.csp"); | |
43 | MODULE_FIRMWARE("sb16/ima_adpcm_capture.csp"); | |
44 | #endif | |
1da177e4 LT |
45 | |
46 | #ifdef SNDRV_LITTLE_ENDIAN | |
47 | #define CSP_HDR_VALUE(a,b,c,d) ((a) | ((b)<<8) | ((c)<<16) | ((d)<<24)) | |
48 | #else | |
49 | #define CSP_HDR_VALUE(a,b,c,d) ((d) | ((c)<<8) | ((b)<<16) | ((a)<<24)) | |
50 | #endif | |
1da177e4 LT |
51 | |
52 | #define RIFF_HEADER CSP_HDR_VALUE('R', 'I', 'F', 'F') | |
53 | #define CSP__HEADER CSP_HDR_VALUE('C', 'S', 'P', ' ') | |
54 | #define LIST_HEADER CSP_HDR_VALUE('L', 'I', 'S', 'T') | |
55 | #define FUNC_HEADER CSP_HDR_VALUE('f', 'u', 'n', 'c') | |
56 | #define CODE_HEADER CSP_HDR_VALUE('c', 'o', 'd', 'e') | |
57 | #define INIT_HEADER CSP_HDR_VALUE('i', 'n', 'i', 't') | |
58 | #define MAIN_HEADER CSP_HDR_VALUE('m', 'a', 'i', 'n') | |
59 | ||
60 | /* | |
61 | * RIFF data format | |
62 | */ | |
dfc866e5 | 63 | struct riff_header { |
1da177e4 LT |
64 | __u32 name; |
65 | __u32 len; | |
dfc866e5 | 66 | }; |
1da177e4 | 67 | |
dfc866e5 AD |
68 | struct desc_header { |
69 | struct riff_header info; | |
1da177e4 LT |
70 | __u16 func_nr; |
71 | __u16 VOC_type; | |
72 | __u16 flags_play_rec; | |
73 | __u16 flags_16bit_8bit; | |
74 | __u16 flags_stereo_mono; | |
75 | __u16 flags_rates; | |
dfc866e5 | 76 | }; |
1da177e4 LT |
77 | |
78 | /* | |
79 | * prototypes | |
80 | */ | |
029d64b0 TI |
81 | static void snd_sb_csp_free(struct snd_hwdep *hw); |
82 | static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file); | |
83 | static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg); | |
84 | static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file); | |
85 | ||
86 | static int csp_detect(struct snd_sb *chip, int *version); | |
87 | static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val); | |
88 | static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val); | |
89 | static int read_register(struct snd_sb *chip, unsigned char reg); | |
90 | static int set_mode_register(struct snd_sb *chip, unsigned char mode); | |
91 | static int get_version(struct snd_sb *chip); | |
92 | ||
93 | static int snd_sb_csp_riff_load(struct snd_sb_csp * p, | |
94 | struct snd_sb_csp_microcode __user * code); | |
95 | static int snd_sb_csp_unload(struct snd_sb_csp * p); | |
96 | static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags); | |
97 | static int snd_sb_csp_autoload(struct snd_sb_csp * p, int pcm_sfmt, int play_rec_mode); | |
98 | static int snd_sb_csp_check_version(struct snd_sb_csp * p); | |
99 | ||
100 | static int snd_sb_csp_use(struct snd_sb_csp * p); | |
101 | static int snd_sb_csp_unuse(struct snd_sb_csp * p); | |
102 | static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels); | |
103 | static int snd_sb_csp_stop(struct snd_sb_csp * p); | |
104 | static int snd_sb_csp_pause(struct snd_sb_csp * p); | |
105 | static int snd_sb_csp_restart(struct snd_sb_csp * p); | |
106 | ||
107 | static int snd_sb_qsound_build(struct snd_sb_csp * p); | |
108 | static void snd_sb_qsound_destroy(struct snd_sb_csp * p); | |
109 | static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p); | |
110 | ||
111 | static int init_proc_entry(struct snd_sb_csp * p, int device); | |
112 | static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer); | |
1da177e4 LT |
113 | |
114 | /* | |
115 | * Detect CSP chip and create a new instance | |
116 | */ | |
029d64b0 | 117 | int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep) |
1da177e4 | 118 | { |
029d64b0 | 119 | struct snd_sb_csp *p; |
cd0b4ac8 TI |
120 | int uninitialized_var(version); |
121 | int err; | |
029d64b0 | 122 | struct snd_hwdep *hw; |
1da177e4 LT |
123 | |
124 | if (rhwdep) | |
125 | *rhwdep = NULL; | |
126 | ||
127 | if (csp_detect(chip, &version)) | |
128 | return -ENODEV; | |
129 | ||
130 | if ((err = snd_hwdep_new(chip->card, "SB16-CSP", device, &hw)) < 0) | |
131 | return err; | |
132 | ||
9e76a76e | 133 | if ((p = kzalloc(sizeof(*p), GFP_KERNEL)) == NULL) { |
1da177e4 LT |
134 | snd_device_free(chip->card, hw); |
135 | return -ENOMEM; | |
136 | } | |
137 | p->chip = chip; | |
138 | p->version = version; | |
139 | ||
140 | /* CSP operators */ | |
141 | p->ops.csp_use = snd_sb_csp_use; | |
142 | p->ops.csp_unuse = snd_sb_csp_unuse; | |
143 | p->ops.csp_autoload = snd_sb_csp_autoload; | |
144 | p->ops.csp_start = snd_sb_csp_start; | |
145 | p->ops.csp_stop = snd_sb_csp_stop; | |
146 | p->ops.csp_qsound_transfer = snd_sb_csp_qsound_transfer; | |
147 | ||
8b7547f9 | 148 | mutex_init(&p->access_mutex); |
1da177e4 LT |
149 | sprintf(hw->name, "CSP v%d.%d", (version >> 4), (version & 0x0f)); |
150 | hw->iface = SNDRV_HWDEP_IFACE_SB16CSP; | |
151 | hw->private_data = p; | |
152 | hw->private_free = snd_sb_csp_free; | |
153 | ||
154 | /* operators - only write/ioctl */ | |
155 | hw->ops.open = snd_sb_csp_open; | |
156 | hw->ops.ioctl = snd_sb_csp_ioctl; | |
157 | hw->ops.release = snd_sb_csp_release; | |
158 | ||
159 | /* create a proc entry */ | |
160 | init_proc_entry(p, device); | |
161 | if (rhwdep) | |
162 | *rhwdep = hw; | |
163 | return 0; | |
164 | } | |
165 | ||
166 | /* | |
167 | * free_private for hwdep instance | |
168 | */ | |
029d64b0 | 169 | static void snd_sb_csp_free(struct snd_hwdep *hwdep) |
1da177e4 | 170 | { |
b7dd2b34 | 171 | #ifndef CONFIG_SND_SB16_CSP_FIRMWARE_IN_KERNEL |
de66d53e | 172 | int i; |
b7dd2b34 | 173 | #endif |
029d64b0 | 174 | struct snd_sb_csp *p = hwdep->private_data; |
1da177e4 LT |
175 | if (p) { |
176 | if (p->running & SNDRV_SB_CSP_ST_RUNNING) | |
177 | snd_sb_csp_stop(p); | |
b7dd2b34 | 178 | #ifndef CONFIG_SND_SB16_CSP_FIRMWARE_IN_KERNEL |
de66d53e CL |
179 | for (i = 0; i < ARRAY_SIZE(p->csp_programs); ++i) |
180 | release_firmware(p->csp_programs[i]); | |
b7dd2b34 | 181 | #endif |
1da177e4 LT |
182 | kfree(p); |
183 | } | |
184 | } | |
185 | ||
186 | /* ------------------------------ */ | |
187 | ||
188 | /* | |
189 | * open the device exclusively | |
190 | */ | |
029d64b0 | 191 | static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file) |
1da177e4 | 192 | { |
029d64b0 | 193 | struct snd_sb_csp *p = hw->private_data; |
1da177e4 LT |
194 | return (snd_sb_csp_use(p)); |
195 | } | |
196 | ||
197 | /* | |
198 | * ioctl for hwdep device: | |
199 | */ | |
029d64b0 | 200 | static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg) |
1da177e4 | 201 | { |
029d64b0 TI |
202 | struct snd_sb_csp *p = hw->private_data; |
203 | struct snd_sb_csp_info info; | |
204 | struct snd_sb_csp_start start_info; | |
1da177e4 LT |
205 | int err; |
206 | ||
207 | snd_assert(p != NULL, return -EINVAL); | |
208 | ||
209 | if (snd_sb_csp_check_version(p)) | |
210 | return -ENODEV; | |
211 | ||
212 | switch (cmd) { | |
213 | /* get information */ | |
214 | case SNDRV_SB_CSP_IOCTL_INFO: | |
215 | *info.codec_name = *p->codec_name; | |
216 | info.func_nr = p->func_nr; | |
217 | info.acc_format = p->acc_format; | |
218 | info.acc_channels = p->acc_channels; | |
219 | info.acc_width = p->acc_width; | |
220 | info.acc_rates = p->acc_rates; | |
221 | info.csp_mode = p->mode; | |
222 | info.run_channels = p->run_channels; | |
223 | info.run_width = p->run_width; | |
224 | info.version = p->version; | |
225 | info.state = p->running; | |
226 | if (copy_to_user((void __user *)arg, &info, sizeof(info))) | |
227 | err = -EFAULT; | |
228 | else | |
229 | err = 0; | |
230 | break; | |
231 | ||
232 | /* load CSP microcode */ | |
233 | case SNDRV_SB_CSP_IOCTL_LOAD_CODE: | |
234 | err = (p->running & SNDRV_SB_CSP_ST_RUNNING ? | |
029d64b0 | 235 | -EBUSY : snd_sb_csp_riff_load(p, (struct snd_sb_csp_microcode __user *) arg)); |
1da177e4 LT |
236 | break; |
237 | case SNDRV_SB_CSP_IOCTL_UNLOAD_CODE: | |
238 | err = (p->running & SNDRV_SB_CSP_ST_RUNNING ? | |
239 | -EBUSY : snd_sb_csp_unload(p)); | |
240 | break; | |
241 | ||
242 | /* change CSP running state */ | |
243 | case SNDRV_SB_CSP_IOCTL_START: | |
244 | if (copy_from_user(&start_info, (void __user *) arg, sizeof(start_info))) | |
245 | err = -EFAULT; | |
246 | else | |
247 | err = snd_sb_csp_start(p, start_info.sample_width, start_info.channels); | |
248 | break; | |
249 | case SNDRV_SB_CSP_IOCTL_STOP: | |
250 | err = snd_sb_csp_stop(p); | |
251 | break; | |
252 | case SNDRV_SB_CSP_IOCTL_PAUSE: | |
253 | err = snd_sb_csp_pause(p); | |
254 | break; | |
255 | case SNDRV_SB_CSP_IOCTL_RESTART: | |
256 | err = snd_sb_csp_restart(p); | |
257 | break; | |
258 | default: | |
259 | err = -ENOTTY; | |
260 | break; | |
261 | } | |
262 | ||
263 | return err; | |
264 | } | |
265 | ||
266 | /* | |
267 | * close the device | |
268 | */ | |
029d64b0 | 269 | static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file) |
1da177e4 | 270 | { |
029d64b0 | 271 | struct snd_sb_csp *p = hw->private_data; |
1da177e4 LT |
272 | return (snd_sb_csp_unuse(p)); |
273 | } | |
274 | ||
275 | /* ------------------------------ */ | |
276 | ||
277 | /* | |
278 | * acquire device | |
279 | */ | |
029d64b0 | 280 | static int snd_sb_csp_use(struct snd_sb_csp * p) |
1da177e4 | 281 | { |
8b7547f9 | 282 | mutex_lock(&p->access_mutex); |
1da177e4 | 283 | if (p->used) { |
8b7547f9 | 284 | mutex_unlock(&p->access_mutex); |
1da177e4 LT |
285 | return -EAGAIN; |
286 | } | |
287 | p->used++; | |
8b7547f9 | 288 | mutex_unlock(&p->access_mutex); |
1da177e4 LT |
289 | |
290 | return 0; | |
291 | ||
292 | } | |
293 | ||
294 | /* | |
295 | * release device | |
296 | */ | |
029d64b0 | 297 | static int snd_sb_csp_unuse(struct snd_sb_csp * p) |
1da177e4 | 298 | { |
8b7547f9 | 299 | mutex_lock(&p->access_mutex); |
1da177e4 | 300 | p->used--; |
8b7547f9 | 301 | mutex_unlock(&p->access_mutex); |
1da177e4 LT |
302 | |
303 | return 0; | |
304 | } | |
305 | ||
306 | /* | |
307 | * load microcode via ioctl: | |
308 | * code is user-space pointer | |
309 | */ | |
029d64b0 TI |
310 | static int snd_sb_csp_riff_load(struct snd_sb_csp * p, |
311 | struct snd_sb_csp_microcode __user * mcode) | |
1da177e4 | 312 | { |
029d64b0 | 313 | struct snd_sb_csp_mc_header info; |
1da177e4 LT |
314 | |
315 | unsigned char __user *data_ptr; | |
316 | unsigned char __user *data_end; | |
317 | unsigned short func_nr = 0; | |
318 | ||
dfc866e5 | 319 | struct riff_header file_h, item_h, code_h; |
1da177e4 | 320 | __u32 item_type; |
dfc866e5 | 321 | struct desc_header funcdesc_h; |
1da177e4 LT |
322 | |
323 | unsigned long flags; | |
324 | int err; | |
325 | ||
326 | if (copy_from_user(&info, mcode, sizeof(info))) | |
327 | return -EFAULT; | |
328 | data_ptr = mcode->data; | |
329 | ||
330 | if (copy_from_user(&file_h, data_ptr, sizeof(file_h))) | |
331 | return -EFAULT; | |
332 | if ((file_h.name != RIFF_HEADER) || | |
31bbf8f5 | 333 | (le32_to_cpu(file_h.len) >= SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE - sizeof(file_h))) { |
1da177e4 LT |
334 | snd_printd("%s: Invalid RIFF header\n", __FUNCTION__); |
335 | return -EINVAL; | |
336 | } | |
337 | data_ptr += sizeof(file_h); | |
31bbf8f5 | 338 | data_end = data_ptr + le32_to_cpu(file_h.len); |
1da177e4 LT |
339 | |
340 | if (copy_from_user(&item_type, data_ptr, sizeof(item_type))) | |
341 | return -EFAULT; | |
342 | if (item_type != CSP__HEADER) { | |
343 | snd_printd("%s: Invalid RIFF file type\n", __FUNCTION__); | |
344 | return -EINVAL; | |
345 | } | |
346 | data_ptr += sizeof (item_type); | |
347 | ||
31bbf8f5 | 348 | for (; data_ptr < data_end; data_ptr += le32_to_cpu(item_h.len)) { |
1da177e4 LT |
349 | if (copy_from_user(&item_h, data_ptr, sizeof(item_h))) |
350 | return -EFAULT; | |
351 | data_ptr += sizeof(item_h); | |
352 | if (item_h.name != LIST_HEADER) | |
353 | continue; | |
354 | ||
355 | if (copy_from_user(&item_type, data_ptr, sizeof(item_type))) | |
356 | return -EFAULT; | |
357 | switch (item_type) { | |
358 | case FUNC_HEADER: | |
359 | if (copy_from_user(&funcdesc_h, data_ptr + sizeof(item_type), sizeof(funcdesc_h))) | |
360 | return -EFAULT; | |
31bbf8f5 | 361 | func_nr = le16_to_cpu(funcdesc_h.func_nr); |
1da177e4 LT |
362 | break; |
363 | case CODE_HEADER: | |
364 | if (func_nr != info.func_req) | |
365 | break; /* not required function, try next */ | |
366 | data_ptr += sizeof(item_type); | |
367 | ||
368 | /* destroy QSound mixer element */ | |
369 | if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) { | |
370 | snd_sb_qsound_destroy(p); | |
371 | } | |
372 | /* Clear all flags */ | |
373 | p->running = 0; | |
374 | p->mode = 0; | |
375 | ||
376 | /* load microcode blocks */ | |
377 | for (;;) { | |
378 | if (data_ptr >= data_end) | |
379 | return -EINVAL; | |
380 | if (copy_from_user(&code_h, data_ptr, sizeof(code_h))) | |
381 | return -EFAULT; | |
382 | ||
383 | /* init microcode blocks */ | |
384 | if (code_h.name != INIT_HEADER) | |
385 | break; | |
386 | data_ptr += sizeof(code_h); | |
31bbf8f5 | 387 | err = snd_sb_csp_load_user(p, data_ptr, le32_to_cpu(code_h.len), |
1da177e4 LT |
388 | SNDRV_SB_CSP_LOAD_INITBLOCK); |
389 | if (err) | |
390 | return err; | |
31bbf8f5 | 391 | data_ptr += le32_to_cpu(code_h.len); |
1da177e4 LT |
392 | } |
393 | /* main microcode block */ | |
394 | if (copy_from_user(&code_h, data_ptr, sizeof(code_h))) | |
395 | return -EFAULT; | |
396 | ||
397 | if (code_h.name != MAIN_HEADER) { | |
398 | snd_printd("%s: Missing 'main' microcode\n", __FUNCTION__); | |
399 | return -EINVAL; | |
400 | } | |
401 | data_ptr += sizeof(code_h); | |
402 | err = snd_sb_csp_load_user(p, data_ptr, | |
31bbf8f5 | 403 | le32_to_cpu(code_h.len), 0); |
1da177e4 LT |
404 | if (err) |
405 | return err; | |
406 | ||
407 | /* fill in codec header */ | |
408 | strlcpy(p->codec_name, info.codec_name, sizeof(p->codec_name)); | |
409 | p->func_nr = func_nr; | |
31bbf8f5 AD |
410 | p->mode = le16_to_cpu(funcdesc_h.flags_play_rec); |
411 | switch (le16_to_cpu(funcdesc_h.VOC_type)) { | |
1da177e4 | 412 | case 0x0001: /* QSound decoder */ |
31bbf8f5 | 413 | if (le16_to_cpu(funcdesc_h.flags_play_rec) == SNDRV_SB_CSP_MODE_DSP_WRITE) { |
1da177e4 LT |
414 | if (snd_sb_qsound_build(p) == 0) |
415 | /* set QSound flag and clear all other mode flags */ | |
416 | p->mode = SNDRV_SB_CSP_MODE_QSOUND; | |
417 | } | |
418 | p->acc_format = 0; | |
419 | break; | |
420 | case 0x0006: /* A Law codec */ | |
421 | p->acc_format = SNDRV_PCM_FMTBIT_A_LAW; | |
422 | break; | |
423 | case 0x0007: /* Mu Law codec */ | |
424 | p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW; | |
425 | break; | |
426 | case 0x0011: /* what Creative thinks is IMA ADPCM codec */ | |
427 | case 0x0200: /* Creative ADPCM codec */ | |
428 | p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM; | |
429 | break; | |
430 | case 201: /* Text 2 Speech decoder */ | |
431 | /* TODO: Text2Speech handling routines */ | |
432 | p->acc_format = 0; | |
433 | break; | |
434 | case 0x0202: /* Fast Speech 8 codec */ | |
435 | case 0x0203: /* Fast Speech 10 codec */ | |
436 | p->acc_format = SNDRV_PCM_FMTBIT_SPECIAL; | |
437 | break; | |
438 | default: /* other codecs are unsupported */ | |
439 | p->acc_format = p->acc_width = p->acc_rates = 0; | |
440 | p->mode = 0; | |
441 | snd_printd("%s: Unsupported CSP codec type: 0x%04x\n", | |
442 | __FUNCTION__, | |
31bbf8f5 | 443 | le16_to_cpu(funcdesc_h.VOC_type)); |
1da177e4 LT |
444 | return -EINVAL; |
445 | } | |
31bbf8f5 AD |
446 | p->acc_channels = le16_to_cpu(funcdesc_h.flags_stereo_mono); |
447 | p->acc_width = le16_to_cpu(funcdesc_h.flags_16bit_8bit); | |
448 | p->acc_rates = le16_to_cpu(funcdesc_h.flags_rates); | |
1da177e4 LT |
449 | |
450 | /* Decouple CSP from IRQ and DMAREQ lines */ | |
451 | spin_lock_irqsave(&p->chip->reg_lock, flags); | |
452 | set_mode_register(p->chip, 0xfc); | |
453 | set_mode_register(p->chip, 0x00); | |
454 | spin_unlock_irqrestore(&p->chip->reg_lock, flags); | |
455 | ||
456 | /* finished loading successfully */ | |
457 | p->running = SNDRV_SB_CSP_ST_LOADED; /* set LOADED flag */ | |
458 | return 0; | |
459 | } | |
460 | } | |
461 | snd_printd("%s: Function #%d not found\n", __FUNCTION__, info.func_req); | |
462 | return -EINVAL; | |
463 | } | |
464 | ||
465 | /* | |
466 | * unload CSP microcode | |
467 | */ | |
029d64b0 | 468 | static int snd_sb_csp_unload(struct snd_sb_csp * p) |
1da177e4 LT |
469 | { |
470 | if (p->running & SNDRV_SB_CSP_ST_RUNNING) | |
471 | return -EBUSY; | |
472 | if (!(p->running & SNDRV_SB_CSP_ST_LOADED)) | |
473 | return -ENXIO; | |
474 | ||
475 | /* clear supported formats */ | |
476 | p->acc_format = 0; | |
477 | p->acc_channels = p->acc_width = p->acc_rates = 0; | |
478 | /* destroy QSound mixer element */ | |
479 | if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) { | |
480 | snd_sb_qsound_destroy(p); | |
481 | } | |
482 | /* clear all flags */ | |
483 | p->running = 0; | |
484 | p->mode = 0; | |
485 | return 0; | |
486 | } | |
487 | ||
488 | /* | |
489 | * send command sequence to DSP | |
490 | */ | |
029d64b0 | 491 | static inline int command_seq(struct snd_sb *chip, const unsigned char *seq, int size) |
1da177e4 LT |
492 | { |
493 | int i; | |
494 | for (i = 0; i < size; i++) { | |
495 | if (!snd_sbdsp_command(chip, seq[i])) | |
496 | return -EIO; | |
497 | } | |
498 | return 0; | |
499 | } | |
500 | ||
501 | /* | |
502 | * set CSP codec parameter | |
503 | */ | |
029d64b0 | 504 | static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val) |
1da177e4 LT |
505 | { |
506 | unsigned char dsp_cmd[3]; | |
507 | ||
508 | dsp_cmd[0] = 0x05; /* CSP set codec parameter */ | |
509 | dsp_cmd[1] = val; /* Parameter value */ | |
510 | dsp_cmd[2] = par; /* Parameter */ | |
511 | command_seq(chip, dsp_cmd, 3); | |
512 | snd_sbdsp_command(chip, 0x03); /* DSP read? */ | |
513 | if (snd_sbdsp_get_byte(chip) != par) | |
514 | return -EIO; | |
515 | return 0; | |
516 | } | |
517 | ||
518 | /* | |
519 | * set CSP register | |
520 | */ | |
029d64b0 | 521 | static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val) |
1da177e4 LT |
522 | { |
523 | unsigned char dsp_cmd[3]; | |
524 | ||
525 | dsp_cmd[0] = 0x0e; /* CSP set register */ | |
526 | dsp_cmd[1] = reg; /* CSP Register */ | |
527 | dsp_cmd[2] = val; /* value */ | |
528 | return command_seq(chip, dsp_cmd, 3); | |
529 | } | |
530 | ||
531 | /* | |
532 | * read CSP register | |
533 | * return < 0 -> error | |
534 | */ | |
029d64b0 | 535 | static int read_register(struct snd_sb *chip, unsigned char reg) |
1da177e4 LT |
536 | { |
537 | unsigned char dsp_cmd[2]; | |
538 | ||
539 | dsp_cmd[0] = 0x0f; /* CSP read register */ | |
540 | dsp_cmd[1] = reg; /* CSP Register */ | |
541 | command_seq(chip, dsp_cmd, 2); | |
542 | return snd_sbdsp_get_byte(chip); /* Read DSP value */ | |
543 | } | |
544 | ||
545 | /* | |
546 | * set CSP mode register | |
547 | */ | |
029d64b0 | 548 | static int set_mode_register(struct snd_sb *chip, unsigned char mode) |
1da177e4 LT |
549 | { |
550 | unsigned char dsp_cmd[2]; | |
551 | ||
552 | dsp_cmd[0] = 0x04; /* CSP set mode register */ | |
553 | dsp_cmd[1] = mode; /* mode */ | |
554 | return command_seq(chip, dsp_cmd, 2); | |
555 | } | |
556 | ||
557 | /* | |
558 | * Detect CSP | |
559 | * return 0 if CSP exists. | |
560 | */ | |
029d64b0 | 561 | static int csp_detect(struct snd_sb *chip, int *version) |
1da177e4 LT |
562 | { |
563 | unsigned char csp_test1, csp_test2; | |
564 | unsigned long flags; | |
565 | int result = -ENODEV; | |
566 | ||
567 | spin_lock_irqsave(&chip->reg_lock, flags); | |
568 | ||
569 | set_codec_parameter(chip, 0x00, 0x00); | |
570 | set_mode_register(chip, 0xfc); /* 0xfc = ?? */ | |
571 | ||
572 | csp_test1 = read_register(chip, 0x83); | |
573 | set_register(chip, 0x83, ~csp_test1); | |
574 | csp_test2 = read_register(chip, 0x83); | |
575 | if (csp_test2 != (csp_test1 ^ 0xff)) | |
576 | goto __fail; | |
577 | ||
578 | set_register(chip, 0x83, csp_test1); | |
579 | csp_test2 = read_register(chip, 0x83); | |
580 | if (csp_test2 != csp_test1) | |
581 | goto __fail; | |
582 | ||
583 | set_mode_register(chip, 0x00); /* 0x00 = ? */ | |
584 | ||
585 | *version = get_version(chip); | |
586 | snd_sbdsp_reset(chip); /* reset DSP after getversion! */ | |
587 | if (*version >= 0x10 && *version <= 0x1f) | |
588 | result = 0; /* valid version id */ | |
589 | ||
590 | __fail: | |
591 | spin_unlock_irqrestore(&chip->reg_lock, flags); | |
592 | return result; | |
593 | } | |
594 | ||
595 | /* | |
596 | * get CSP version number | |
597 | */ | |
029d64b0 | 598 | static int get_version(struct snd_sb *chip) |
1da177e4 LT |
599 | { |
600 | unsigned char dsp_cmd[2]; | |
601 | ||
602 | dsp_cmd[0] = 0x08; /* SB_DSP_!something! */ | |
603 | dsp_cmd[1] = 0x03; /* get chip version id? */ | |
604 | command_seq(chip, dsp_cmd, 2); | |
605 | ||
606 | return (snd_sbdsp_get_byte(chip)); | |
607 | } | |
608 | ||
609 | /* | |
610 | * check if the CSP version is valid | |
611 | */ | |
029d64b0 | 612 | static int snd_sb_csp_check_version(struct snd_sb_csp * p) |
1da177e4 LT |
613 | { |
614 | if (p->version < 0x10 || p->version > 0x1f) { | |
615 | snd_printd("%s: Invalid CSP version: 0x%x\n", __FUNCTION__, p->version); | |
616 | return 1; | |
617 | } | |
618 | return 0; | |
619 | } | |
620 | ||
621 | /* | |
622 | * download microcode to CSP (microcode should have one "main" block). | |
623 | */ | |
029d64b0 | 624 | static int snd_sb_csp_load(struct snd_sb_csp * p, const unsigned char *buf, int size, int load_flags) |
1da177e4 LT |
625 | { |
626 | int status, i; | |
627 | int err; | |
628 | int result = -EIO; | |
629 | unsigned long flags; | |
630 | ||
631 | spin_lock_irqsave(&p->chip->reg_lock, flags); | |
632 | snd_sbdsp_command(p->chip, 0x01); /* CSP download command */ | |
633 | if (snd_sbdsp_get_byte(p->chip)) { | |
634 | snd_printd("%s: Download command failed\n", __FUNCTION__); | |
635 | goto __fail; | |
636 | } | |
637 | /* Send CSP low byte (size - 1) */ | |
638 | snd_sbdsp_command(p->chip, (unsigned char)(size - 1)); | |
639 | /* Send high byte */ | |
640 | snd_sbdsp_command(p->chip, (unsigned char)((size - 1) >> 8)); | |
641 | /* send microcode sequence */ | |
642 | /* load from kernel space */ | |
643 | while (size--) { | |
644 | if (!snd_sbdsp_command(p->chip, *buf++)) | |
645 | goto __fail; | |
646 | } | |
647 | if (snd_sbdsp_get_byte(p->chip)) | |
648 | goto __fail; | |
649 | ||
650 | if (load_flags & SNDRV_SB_CSP_LOAD_INITBLOCK) { | |
651 | i = 0; | |
652 | /* some codecs (FastSpeech) take some time to initialize */ | |
653 | while (1) { | |
654 | snd_sbdsp_command(p->chip, 0x03); | |
655 | status = snd_sbdsp_get_byte(p->chip); | |
656 | if (status == 0x55 || ++i >= 10) | |
657 | break; | |
658 | udelay (10); | |
659 | } | |
660 | if (status != 0x55) { | |
661 | snd_printd("%s: Microcode initialization failed\n", __FUNCTION__); | |
662 | goto __fail; | |
663 | } | |
664 | } else { | |
665 | /* | |
666 | * Read mixer register SB_DSP4_DMASETUP after loading 'main' code. | |
667 | * Start CSP chip if no 16bit DMA channel is set - some kind | |
668 | * of autorun or perhaps a bugfix? | |
669 | */ | |
670 | spin_lock(&p->chip->mixer_lock); | |
671 | status = snd_sbmixer_read(p->chip, SB_DSP4_DMASETUP); | |
672 | spin_unlock(&p->chip->mixer_lock); | |
673 | if (!(status & (SB_DMASETUP_DMA7 | SB_DMASETUP_DMA6 | SB_DMASETUP_DMA5))) { | |
674 | err = (set_codec_parameter(p->chip, 0xaa, 0x00) || | |
675 | set_codec_parameter(p->chip, 0xff, 0x00)); | |
676 | snd_sbdsp_reset(p->chip); /* really! */ | |
677 | if (err) | |
678 | goto __fail; | |
679 | set_mode_register(p->chip, 0xc0); /* c0 = STOP */ | |
680 | set_mode_register(p->chip, 0x70); /* 70 = RUN */ | |
681 | } | |
682 | } | |
683 | result = 0; | |
684 | ||
685 | __fail: | |
686 | spin_unlock_irqrestore(&p->chip->reg_lock, flags); | |
687 | return result; | |
688 | } | |
689 | ||
029d64b0 | 690 | static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags) |
1da177e4 LT |
691 | { |
692 | int err = -ENOMEM; | |
693 | unsigned char *kbuf = kmalloc(size, GFP_KERNEL); | |
694 | if (kbuf) { | |
695 | if (copy_from_user(kbuf, buf, size)) | |
696 | err = -EFAULT; | |
697 | else | |
698 | err = snd_sb_csp_load(p, kbuf, size, load_flags); | |
699 | kfree(kbuf); | |
700 | } | |
701 | return err; | |
702 | } | |
703 | ||
8ad2da19 | 704 | #ifdef CONFIG_SND_SB16_CSP_FIRMWARE_IN_KERNEL |
1da177e4 LT |
705 | #include "sb16_csp_codecs.h" |
706 | ||
de66d53e CL |
707 | static const struct firmware snd_sb_csp_static_programs[] = { |
708 | { .data = mulaw_main, .size = sizeof mulaw_main }, | |
709 | { .data = alaw_main, .size = sizeof alaw_main }, | |
710 | { .data = ima_adpcm_init, .size = sizeof ima_adpcm_init }, | |
711 | { .data = ima_adpcm_playback, .size = sizeof ima_adpcm_playback }, | |
712 | { .data = ima_adpcm_capture, .size = sizeof ima_adpcm_capture }, | |
713 | }; | |
714 | #endif | |
715 | ||
716 | static int snd_sb_csp_firmware_load(struct snd_sb_csp *p, int index, int flags) | |
717 | { | |
718 | static const char *const names[] = { | |
719 | "sb16/mulaw_main.csp", | |
720 | "sb16/alaw_main.csp", | |
721 | "sb16/ima_adpcm_init.csp", | |
722 | "sb16/ima_adpcm_playback.csp", | |
723 | "sb16/ima_adpcm_capture.csp", | |
724 | }; | |
725 | const struct firmware *program; | |
de66d53e CL |
726 | |
727 | BUILD_BUG_ON(ARRAY_SIZE(names) != CSP_PROGRAM_COUNT); | |
728 | program = p->csp_programs[index]; | |
729 | if (!program) { | |
8ad2da19 | 730 | #ifdef CONFIG_SND_SB16_CSP_FIRMWARE_IN_KERNEL |
b7dd2b34 | 731 | program = &snd_sb_csp_static_programs[index]; |
de66d53e | 732 | #else |
b7dd2b34 TI |
733 | int err = request_firmware(&program, names[index], |
734 | p->chip->card->dev); | |
735 | if (err < 0) | |
de66d53e CL |
736 | return err; |
737 | #endif | |
b7dd2b34 | 738 | p->csp_programs[index] = program; |
de66d53e CL |
739 | } |
740 | return snd_sb_csp_load(p, program->data, program->size, flags); | |
741 | } | |
742 | ||
1da177e4 LT |
743 | /* |
744 | * autoload hardware codec if necessary | |
745 | * return 0 if CSP is loaded and ready to run (p->running != 0) | |
746 | */ | |
029d64b0 | 747 | static int snd_sb_csp_autoload(struct snd_sb_csp * p, int pcm_sfmt, int play_rec_mode) |
1da177e4 LT |
748 | { |
749 | unsigned long flags; | |
750 | int err = 0; | |
751 | ||
752 | /* if CSP is running or manually loaded then exit */ | |
753 | if (p->running & (SNDRV_SB_CSP_ST_RUNNING | SNDRV_SB_CSP_ST_LOADED)) | |
754 | return -EBUSY; | |
755 | ||
756 | /* autoload microcode only if requested hardware codec is not already loaded */ | |
757 | if (((1 << pcm_sfmt) & p->acc_format) && (play_rec_mode & p->mode)) { | |
758 | p->running = SNDRV_SB_CSP_ST_AUTO; | |
759 | } else { | |
760 | switch (pcm_sfmt) { | |
761 | case SNDRV_PCM_FORMAT_MU_LAW: | |
de66d53e | 762 | err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_MULAW, 0); |
1da177e4 LT |
763 | p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW; |
764 | p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE; | |
765 | break; | |
766 | case SNDRV_PCM_FORMAT_A_LAW: | |
de66d53e | 767 | err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ALAW, 0); |
1da177e4 LT |
768 | p->acc_format = SNDRV_PCM_FMTBIT_A_LAW; |
769 | p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE; | |
770 | break; | |
771 | case SNDRV_PCM_FORMAT_IMA_ADPCM: | |
de66d53e CL |
772 | err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ADPCM_INIT, |
773 | SNDRV_SB_CSP_LOAD_INITBLOCK); | |
1da177e4 LT |
774 | if (err) |
775 | break; | |
776 | if (play_rec_mode == SNDRV_SB_CSP_MODE_DSP_WRITE) { | |
de66d53e CL |
777 | err = snd_sb_csp_firmware_load |
778 | (p, CSP_PROGRAM_ADPCM_PLAYBACK, 0); | |
1da177e4 LT |
779 | p->mode = SNDRV_SB_CSP_MODE_DSP_WRITE; |
780 | } else { | |
de66d53e CL |
781 | err = snd_sb_csp_firmware_load |
782 | (p, CSP_PROGRAM_ADPCM_CAPTURE, 0); | |
1da177e4 LT |
783 | p->mode = SNDRV_SB_CSP_MODE_DSP_READ; |
784 | } | |
785 | p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM; | |
786 | break; | |
787 | default: | |
788 | /* Decouple CSP from IRQ and DMAREQ lines */ | |
789 | if (p->running & SNDRV_SB_CSP_ST_AUTO) { | |
790 | spin_lock_irqsave(&p->chip->reg_lock, flags); | |
791 | set_mode_register(p->chip, 0xfc); | |
792 | set_mode_register(p->chip, 0x00); | |
793 | spin_unlock_irqrestore(&p->chip->reg_lock, flags); | |
794 | p->running = 0; /* clear autoloaded flag */ | |
795 | } | |
796 | return -EINVAL; | |
797 | } | |
798 | if (err) { | |
799 | p->acc_format = 0; | |
800 | p->acc_channels = p->acc_width = p->acc_rates = 0; | |
801 | ||
802 | p->running = 0; /* clear autoloaded flag */ | |
803 | p->mode = 0; | |
804 | return (err); | |
805 | } else { | |
806 | p->running = SNDRV_SB_CSP_ST_AUTO; /* set autoloaded flag */ | |
807 | p->acc_width = SNDRV_SB_CSP_SAMPLE_16BIT; /* only 16 bit data */ | |
808 | p->acc_channels = SNDRV_SB_CSP_MONO | SNDRV_SB_CSP_STEREO; | |
809 | p->acc_rates = SNDRV_SB_CSP_RATE_ALL; /* HW codecs accept all rates */ | |
810 | } | |
811 | ||
812 | } | |
813 | return (p->running & SNDRV_SB_CSP_ST_AUTO) ? 0 : -ENXIO; | |
814 | } | |
815 | ||
816 | /* | |
817 | * start CSP | |
818 | */ | |
029d64b0 | 819 | static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels) |
1da177e4 LT |
820 | { |
821 | unsigned char s_type; /* sample type */ | |
822 | unsigned char mixL, mixR; | |
823 | int result = -EIO; | |
824 | unsigned long flags; | |
825 | ||
826 | if (!(p->running & (SNDRV_SB_CSP_ST_LOADED | SNDRV_SB_CSP_ST_AUTO))) { | |
827 | snd_printd("%s: Microcode not loaded\n", __FUNCTION__); | |
828 | return -ENXIO; | |
829 | } | |
830 | if (p->running & SNDRV_SB_CSP_ST_RUNNING) { | |
831 | snd_printd("%s: CSP already running\n", __FUNCTION__); | |
832 | return -EBUSY; | |
833 | } | |
834 | if (!(sample_width & p->acc_width)) { | |
835 | snd_printd("%s: Unsupported PCM sample width\n", __FUNCTION__); | |
836 | return -EINVAL; | |
837 | } | |
838 | if (!(channels & p->acc_channels)) { | |
839 | snd_printd("%s: Invalid number of channels\n", __FUNCTION__); | |
840 | return -EINVAL; | |
841 | } | |
842 | ||
843 | /* Mute PCM volume */ | |
844 | spin_lock_irqsave(&p->chip->mixer_lock, flags); | |
845 | mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV); | |
846 | mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1); | |
847 | snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7); | |
848 | snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7); | |
849 | ||
850 | spin_lock(&p->chip->reg_lock); | |
851 | set_mode_register(p->chip, 0xc0); /* c0 = STOP */ | |
852 | set_mode_register(p->chip, 0x70); /* 70 = RUN */ | |
853 | ||
854 | s_type = 0x00; | |
855 | if (channels == SNDRV_SB_CSP_MONO) | |
856 | s_type = 0x11; /* 000n 000n (n = 1 if mono) */ | |
857 | if (sample_width == SNDRV_SB_CSP_SAMPLE_8BIT) | |
858 | s_type |= 0x22; /* 00dX 00dX (d = 1 if 8 bit samples) */ | |
859 | ||
860 | if (set_codec_parameter(p->chip, 0x81, s_type)) { | |
861 | snd_printd("%s: Set sample type command failed\n", __FUNCTION__); | |
862 | goto __fail; | |
863 | } | |
864 | if (set_codec_parameter(p->chip, 0x80, 0x00)) { | |
865 | snd_printd("%s: Codec start command failed\n", __FUNCTION__); | |
866 | goto __fail; | |
867 | } | |
868 | p->run_width = sample_width; | |
869 | p->run_channels = channels; | |
870 | ||
871 | p->running |= SNDRV_SB_CSP_ST_RUNNING; | |
872 | ||
873 | if (p->mode & SNDRV_SB_CSP_MODE_QSOUND) { | |
874 | set_codec_parameter(p->chip, 0xe0, 0x01); | |
875 | /* enable QSound decoder */ | |
876 | set_codec_parameter(p->chip, 0x00, 0xff); | |
877 | set_codec_parameter(p->chip, 0x01, 0xff); | |
878 | p->running |= SNDRV_SB_CSP_ST_QSOUND; | |
879 | /* set QSound startup value */ | |
880 | snd_sb_csp_qsound_transfer(p); | |
881 | } | |
882 | result = 0; | |
883 | ||
884 | __fail: | |
885 | spin_unlock(&p->chip->reg_lock); | |
886 | ||
887 | /* restore PCM volume */ | |
888 | snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL); | |
889 | snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR); | |
890 | spin_unlock_irqrestore(&p->chip->mixer_lock, flags); | |
891 | ||
892 | return result; | |
893 | } | |
894 | ||
895 | /* | |
896 | * stop CSP | |
897 | */ | |
029d64b0 | 898 | static int snd_sb_csp_stop(struct snd_sb_csp * p) |
1da177e4 LT |
899 | { |
900 | int result; | |
901 | unsigned char mixL, mixR; | |
902 | unsigned long flags; | |
903 | ||
904 | if (!(p->running & SNDRV_SB_CSP_ST_RUNNING)) | |
905 | return 0; | |
906 | ||
907 | /* Mute PCM volume */ | |
908 | spin_lock_irqsave(&p->chip->mixer_lock, flags); | |
909 | mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV); | |
910 | mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1); | |
911 | snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7); | |
912 | snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7); | |
913 | ||
914 | spin_lock(&p->chip->reg_lock); | |
915 | if (p->running & SNDRV_SB_CSP_ST_QSOUND) { | |
916 | set_codec_parameter(p->chip, 0xe0, 0x01); | |
917 | /* disable QSound decoder */ | |
918 | set_codec_parameter(p->chip, 0x00, 0x00); | |
919 | set_codec_parameter(p->chip, 0x01, 0x00); | |
920 | ||
921 | p->running &= ~SNDRV_SB_CSP_ST_QSOUND; | |
922 | } | |
923 | result = set_mode_register(p->chip, 0xc0); /* c0 = STOP */ | |
924 | spin_unlock(&p->chip->reg_lock); | |
925 | ||
926 | /* restore PCM volume */ | |
927 | snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL); | |
928 | snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR); | |
929 | spin_unlock_irqrestore(&p->chip->mixer_lock, flags); | |
930 | ||
931 | if (!(result)) | |
932 | p->running &= ~(SNDRV_SB_CSP_ST_PAUSED | SNDRV_SB_CSP_ST_RUNNING); | |
933 | return result; | |
934 | } | |
935 | ||
936 | /* | |
937 | * pause CSP codec and hold DMA transfer | |
938 | */ | |
029d64b0 | 939 | static int snd_sb_csp_pause(struct snd_sb_csp * p) |
1da177e4 LT |
940 | { |
941 | int result; | |
942 | unsigned long flags; | |
943 | ||
944 | if (!(p->running & SNDRV_SB_CSP_ST_RUNNING)) | |
945 | return -EBUSY; | |
946 | ||
947 | spin_lock_irqsave(&p->chip->reg_lock, flags); | |
948 | result = set_codec_parameter(p->chip, 0x80, 0xff); | |
949 | spin_unlock_irqrestore(&p->chip->reg_lock, flags); | |
950 | if (!(result)) | |
951 | p->running |= SNDRV_SB_CSP_ST_PAUSED; | |
952 | ||
953 | return result; | |
954 | } | |
955 | ||
956 | /* | |
957 | * restart CSP codec and resume DMA transfer | |
958 | */ | |
029d64b0 | 959 | static int snd_sb_csp_restart(struct snd_sb_csp * p) |
1da177e4 LT |
960 | { |
961 | int result; | |
962 | unsigned long flags; | |
963 | ||
964 | if (!(p->running & SNDRV_SB_CSP_ST_PAUSED)) | |
965 | return -EBUSY; | |
966 | ||
967 | spin_lock_irqsave(&p->chip->reg_lock, flags); | |
968 | result = set_codec_parameter(p->chip, 0x80, 0x00); | |
969 | spin_unlock_irqrestore(&p->chip->reg_lock, flags); | |
970 | if (!(result)) | |
971 | p->running &= ~SNDRV_SB_CSP_ST_PAUSED; | |
972 | ||
973 | return result; | |
974 | } | |
975 | ||
976 | /* ------------------------------ */ | |
977 | ||
978 | /* | |
979 | * QSound mixer control for PCM | |
980 | */ | |
981 | ||
a5ce8890 | 982 | #define snd_sb_qsound_switch_info snd_ctl_boolean_mono_info |
1da177e4 | 983 | |
029d64b0 | 984 | static int snd_sb_qsound_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 985 | { |
029d64b0 | 986 | struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol); |
1da177e4 LT |
987 | |
988 | ucontrol->value.integer.value[0] = p->q_enabled ? 1 : 0; | |
989 | return 0; | |
990 | } | |
991 | ||
029d64b0 | 992 | static int snd_sb_qsound_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 993 | { |
029d64b0 | 994 | struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol); |
1da177e4 LT |
995 | unsigned long flags; |
996 | int change; | |
997 | unsigned char nval; | |
998 | ||
999 | nval = ucontrol->value.integer.value[0] & 0x01; | |
1000 | spin_lock_irqsave(&p->q_lock, flags); | |
1001 | change = p->q_enabled != nval; | |
1002 | p->q_enabled = nval; | |
1003 | spin_unlock_irqrestore(&p->q_lock, flags); | |
1004 | return change; | |
1005 | } | |
1006 | ||
029d64b0 | 1007 | static int snd_sb_qsound_space_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 LT |
1008 | { |
1009 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
1010 | uinfo->count = 2; | |
1011 | uinfo->value.integer.min = 0; | |
1012 | uinfo->value.integer.max = SNDRV_SB_CSP_QSOUND_MAX_RIGHT; | |
1013 | return 0; | |
1014 | } | |
1015 | ||
029d64b0 | 1016 | static int snd_sb_qsound_space_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1017 | { |
029d64b0 | 1018 | struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol); |
1da177e4 LT |
1019 | unsigned long flags; |
1020 | ||
1021 | spin_lock_irqsave(&p->q_lock, flags); | |
1022 | ucontrol->value.integer.value[0] = p->qpos_left; | |
1023 | ucontrol->value.integer.value[1] = p->qpos_right; | |
1024 | spin_unlock_irqrestore(&p->q_lock, flags); | |
1025 | return 0; | |
1026 | } | |
1027 | ||
029d64b0 | 1028 | static int snd_sb_qsound_space_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1029 | { |
029d64b0 | 1030 | struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol); |
1da177e4 LT |
1031 | unsigned long flags; |
1032 | int change; | |
1033 | unsigned char nval1, nval2; | |
1034 | ||
1035 | nval1 = ucontrol->value.integer.value[0]; | |
1036 | if (nval1 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT) | |
1037 | nval1 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT; | |
1038 | nval2 = ucontrol->value.integer.value[1]; | |
1039 | if (nval2 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT) | |
1040 | nval2 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT; | |
1041 | spin_lock_irqsave(&p->q_lock, flags); | |
1042 | change = p->qpos_left != nval1 || p->qpos_right != nval2; | |
1043 | p->qpos_left = nval1; | |
1044 | p->qpos_right = nval2; | |
1045 | p->qpos_changed = change; | |
1046 | spin_unlock_irqrestore(&p->q_lock, flags); | |
1047 | return change; | |
1048 | } | |
1049 | ||
029d64b0 | 1050 | static struct snd_kcontrol_new snd_sb_qsound_switch = { |
1da177e4 LT |
1051 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1052 | .name = "3D Control - Switch", | |
1053 | .info = snd_sb_qsound_switch_info, | |
1054 | .get = snd_sb_qsound_switch_get, | |
1055 | .put = snd_sb_qsound_switch_put | |
1056 | }; | |
1057 | ||
029d64b0 | 1058 | static struct snd_kcontrol_new snd_sb_qsound_space = { |
1da177e4 LT |
1059 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1060 | .name = "3D Control - Space", | |
1061 | .info = snd_sb_qsound_space_info, | |
1062 | .get = snd_sb_qsound_space_get, | |
1063 | .put = snd_sb_qsound_space_put | |
1064 | }; | |
1065 | ||
029d64b0 | 1066 | static int snd_sb_qsound_build(struct snd_sb_csp * p) |
1da177e4 | 1067 | { |
029d64b0 | 1068 | struct snd_card *card; |
1da177e4 LT |
1069 | int err; |
1070 | ||
1071 | snd_assert(p != NULL, return -EINVAL); | |
1072 | ||
1073 | card = p->chip->card; | |
1074 | p->qpos_left = p->qpos_right = SNDRV_SB_CSP_QSOUND_MAX_RIGHT / 2; | |
1075 | p->qpos_changed = 0; | |
1076 | ||
1077 | spin_lock_init(&p->q_lock); | |
1078 | ||
1079 | if ((err = snd_ctl_add(card, p->qsound_switch = snd_ctl_new1(&snd_sb_qsound_switch, p))) < 0) | |
1080 | goto __error; | |
1081 | if ((err = snd_ctl_add(card, p->qsound_space = snd_ctl_new1(&snd_sb_qsound_space, p))) < 0) | |
1082 | goto __error; | |
1083 | ||
1084 | return 0; | |
1085 | ||
1086 | __error: | |
1087 | snd_sb_qsound_destroy(p); | |
1088 | return err; | |
1089 | } | |
1090 | ||
029d64b0 | 1091 | static void snd_sb_qsound_destroy(struct snd_sb_csp * p) |
1da177e4 | 1092 | { |
029d64b0 | 1093 | struct snd_card *card; |
1da177e4 LT |
1094 | unsigned long flags; |
1095 | ||
1096 | snd_assert(p != NULL, return); | |
1097 | ||
1098 | card = p->chip->card; | |
1099 | ||
1100 | down_write(&card->controls_rwsem); | |
1101 | if (p->qsound_switch) | |
1102 | snd_ctl_remove(card, p->qsound_switch); | |
1103 | if (p->qsound_space) | |
1104 | snd_ctl_remove(card, p->qsound_space); | |
1105 | up_write(&card->controls_rwsem); | |
1106 | ||
1107 | /* cancel pending transfer of QSound parameters */ | |
1108 | spin_lock_irqsave (&p->q_lock, flags); | |
1109 | p->qpos_changed = 0; | |
1110 | spin_unlock_irqrestore (&p->q_lock, flags); | |
1111 | } | |
1112 | ||
1113 | /* | |
1114 | * Transfer qsound parameters to CSP, | |
1115 | * function should be called from interrupt routine | |
1116 | */ | |
029d64b0 | 1117 | static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p) |
1da177e4 LT |
1118 | { |
1119 | int err = -ENXIO; | |
1120 | ||
1121 | spin_lock(&p->q_lock); | |
1122 | if (p->running & SNDRV_SB_CSP_ST_QSOUND) { | |
1123 | set_codec_parameter(p->chip, 0xe0, 0x01); | |
1124 | /* left channel */ | |
1125 | set_codec_parameter(p->chip, 0x00, p->qpos_left); | |
1126 | set_codec_parameter(p->chip, 0x02, 0x00); | |
1127 | /* right channel */ | |
1128 | set_codec_parameter(p->chip, 0x00, p->qpos_right); | |
1129 | set_codec_parameter(p->chip, 0x03, 0x00); | |
1130 | err = 0; | |
1131 | } | |
1132 | p->qpos_changed = 0; | |
1133 | spin_unlock(&p->q_lock); | |
1134 | return err; | |
1135 | } | |
1136 | ||
1137 | /* ------------------------------ */ | |
1138 | ||
1139 | /* | |
1140 | * proc interface | |
1141 | */ | |
029d64b0 | 1142 | static int init_proc_entry(struct snd_sb_csp * p, int device) |
1da177e4 LT |
1143 | { |
1144 | char name[16]; | |
029d64b0 | 1145 | struct snd_info_entry *entry; |
1da177e4 LT |
1146 | sprintf(name, "cspD%d", device); |
1147 | if (! snd_card_proc_new(p->chip->card, name, &entry)) | |
bf850204 | 1148 | snd_info_set_text_ops(entry, p, info_read); |
1da177e4 LT |
1149 | return 0; |
1150 | } | |
1151 | ||
029d64b0 | 1152 | static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) |
1da177e4 | 1153 | { |
029d64b0 | 1154 | struct snd_sb_csp *p = entry->private_data; |
1da177e4 LT |
1155 | |
1156 | snd_iprintf(buffer, "Creative Signal Processor [v%d.%d]\n", (p->version >> 4), (p->version & 0x0f)); | |
1157 | snd_iprintf(buffer, "State: %cx%c%c%c\n", ((p->running & SNDRV_SB_CSP_ST_QSOUND) ? 'Q' : '-'), | |
1158 | ((p->running & SNDRV_SB_CSP_ST_PAUSED) ? 'P' : '-'), | |
1159 | ((p->running & SNDRV_SB_CSP_ST_RUNNING) ? 'R' : '-'), | |
1160 | ((p->running & SNDRV_SB_CSP_ST_LOADED) ? 'L' : '-')); | |
1161 | if (p->running & SNDRV_SB_CSP_ST_LOADED) { | |
1162 | snd_iprintf(buffer, "Codec: %s [func #%d]\n", p->codec_name, p->func_nr); | |
1163 | snd_iprintf(buffer, "Sample rates: "); | |
1164 | if (p->acc_rates == SNDRV_SB_CSP_RATE_ALL) { | |
1165 | snd_iprintf(buffer, "All\n"); | |
1166 | } else { | |
1167 | snd_iprintf(buffer, "%s%s%s%s\n", | |
1168 | ((p->acc_rates & SNDRV_SB_CSP_RATE_8000) ? "8000Hz " : ""), | |
1169 | ((p->acc_rates & SNDRV_SB_CSP_RATE_11025) ? "11025Hz " : ""), | |
1170 | ((p->acc_rates & SNDRV_SB_CSP_RATE_22050) ? "22050Hz " : ""), | |
1171 | ((p->acc_rates & SNDRV_SB_CSP_RATE_44100) ? "44100Hz" : "")); | |
1172 | } | |
1173 | if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) { | |
1174 | snd_iprintf(buffer, "QSound decoder %sabled\n", | |
1175 | p->q_enabled ? "en" : "dis"); | |
1176 | } else { | |
1177 | snd_iprintf(buffer, "PCM format ID: 0x%x (%s/%s) [%s/%s] [%s/%s]\n", | |
1178 | p->acc_format, | |
1179 | ((p->acc_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? "16bit" : "-"), | |
1180 | ((p->acc_width & SNDRV_SB_CSP_SAMPLE_8BIT) ? "8bit" : "-"), | |
1181 | ((p->acc_channels & SNDRV_SB_CSP_MONO) ? "mono" : "-"), | |
1182 | ((p->acc_channels & SNDRV_SB_CSP_STEREO) ? "stereo" : "-"), | |
1183 | ((p->mode & SNDRV_SB_CSP_MODE_DSP_WRITE) ? "playback" : "-"), | |
1184 | ((p->mode & SNDRV_SB_CSP_MODE_DSP_READ) ? "capture" : "-")); | |
1185 | } | |
1186 | } | |
1187 | if (p->running & SNDRV_SB_CSP_ST_AUTO) { | |
1188 | snd_iprintf(buffer, "Autoloaded Mu-Law, A-Law or Ima-ADPCM hardware codec\n"); | |
1189 | } | |
1190 | if (p->running & SNDRV_SB_CSP_ST_RUNNING) { | |
1191 | snd_iprintf(buffer, "Processing %dbit %s PCM samples\n", | |
1192 | ((p->run_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? 16 : 8), | |
1193 | ((p->run_channels & SNDRV_SB_CSP_MONO) ? "mono" : "stereo")); | |
1194 | } | |
1195 | if (p->running & SNDRV_SB_CSP_ST_QSOUND) { | |
1196 | snd_iprintf(buffer, "Qsound position: left = 0x%x, right = 0x%x\n", | |
1197 | p->qpos_left, p->qpos_right); | |
1198 | } | |
1199 | } | |
1200 | ||
1201 | /* */ | |
1202 | ||
1203 | EXPORT_SYMBOL(snd_sb_csp_new); | |
1204 | ||
1205 | /* | |
1206 | * INIT part | |
1207 | */ | |
1208 | ||
1209 | static int __init alsa_sb_csp_init(void) | |
1210 | { | |
1211 | return 0; | |
1212 | } | |
1213 | ||
1214 | static void __exit alsa_sb_csp_exit(void) | |
1215 | { | |
1216 | } | |
1217 | ||
1218 | module_init(alsa_sb_csp_init) | |
1219 | module_exit(alsa_sb_csp_exit) |