| 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
| 2 | /* |
| 3 | * Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si> |
| 4 | * Takashi Iwai <tiwai@suse.de> |
| 5 | * |
| 6 | * SB16ASP/AWE32 CSP control |
| 7 | * |
| 8 | * CSP microcode loader: |
| 9 | * alsa-tools/sb16_csp/ |
| 10 | */ |
| 11 | |
| 12 | #include <linux/delay.h> |
| 13 | #include <linux/init.h> |
| 14 | #include <linux/slab.h> |
| 15 | #include <linux/module.h> |
| 16 | #include <linux/string_choices.h> |
| 17 | #include <sound/core.h> |
| 18 | #include <sound/control.h> |
| 19 | #include <sound/info.h> |
| 20 | #include <sound/sb16_csp.h> |
| 21 | #include <sound/initval.h> |
| 22 | |
| 23 | MODULE_AUTHOR("Uros Bizjak <uros@kss-loka.si>" ); |
| 24 | MODULE_DESCRIPTION("ALSA driver for SB16 Creative Signal Processor" ); |
| 25 | MODULE_LICENSE("GPL" ); |
| 26 | MODULE_FIRMWARE("sb16/mulaw_main.csp" ); |
| 27 | MODULE_FIRMWARE("sb16/alaw_main.csp" ); |
| 28 | MODULE_FIRMWARE("sb16/ima_adpcm_init.csp" ); |
| 29 | MODULE_FIRMWARE("sb16/ima_adpcm_playback.csp" ); |
| 30 | MODULE_FIRMWARE("sb16/ima_adpcm_capture.csp" ); |
| 31 | |
| 32 | #ifdef SNDRV_LITTLE_ENDIAN |
| 33 | #define CSP_HDR_VALUE(a,b,c,d) ((a) | ((b)<<8) | ((c)<<16) | ((d)<<24)) |
| 34 | #else |
| 35 | #define CSP_HDR_VALUE(a,b,c,d) ((d) | ((c)<<8) | ((b)<<16) | ((a)<<24)) |
| 36 | #endif |
| 37 | |
| 38 | #define CSP_HDR_VALUE('R', 'I', 'F', 'F') |
| 39 | #define CSP_HDR_VALUE('C', 'S', 'P', ' ') |
| 40 | #define CSP_HDR_VALUE('L', 'I', 'S', 'T') |
| 41 | #define CSP_HDR_VALUE('f', 'u', 'n', 'c') |
| 42 | #define CSP_HDR_VALUE('c', 'o', 'd', 'e') |
| 43 | #define CSP_HDR_VALUE('i', 'n', 'i', 't') |
| 44 | #define MAIN_HEADER CSP_HDR_VALUE('m', 'a', 'i', 'n') |
| 45 | |
| 46 | /* |
| 47 | * RIFF data format |
| 48 | */ |
| 49 | struct { |
| 50 | __le32 ; |
| 51 | __le32 ; |
| 52 | }; |
| 53 | |
| 54 | struct { |
| 55 | struct riff_header ; |
| 56 | __le16 ; |
| 57 | __le16 ; |
| 58 | __le16 ; |
| 59 | __le16 ; |
| 60 | __le16 ; |
| 61 | __le16 ; |
| 62 | }; |
| 63 | |
| 64 | /* |
| 65 | * prototypes |
| 66 | */ |
| 67 | static void snd_sb_csp_free(struct snd_hwdep *hw); |
| 68 | static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file); |
| 69 | static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg); |
| 70 | static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file); |
| 71 | |
| 72 | static int csp_detect(struct snd_sb *chip, int *version); |
| 73 | static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val); |
| 74 | static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val); |
| 75 | static int read_register(struct snd_sb *chip, unsigned char reg); |
| 76 | static int set_mode_register(struct snd_sb *chip, unsigned char mode); |
| 77 | static int get_version(struct snd_sb *chip); |
| 78 | |
| 79 | static int snd_sb_csp_riff_load(struct snd_sb_csp * p, |
| 80 | struct snd_sb_csp_microcode __user * code); |
| 81 | static int snd_sb_csp_unload(struct snd_sb_csp * p); |
| 82 | static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags); |
| 83 | static int snd_sb_csp_autoload(struct snd_sb_csp * p, snd_pcm_format_t pcm_sfmt, int play_rec_mode); |
| 84 | static int snd_sb_csp_check_version(struct snd_sb_csp * p); |
| 85 | |
| 86 | static int snd_sb_csp_use(struct snd_sb_csp * p); |
| 87 | static int snd_sb_csp_unuse(struct snd_sb_csp * p); |
| 88 | static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels); |
| 89 | static int snd_sb_csp_stop(struct snd_sb_csp * p); |
| 90 | static int snd_sb_csp_pause(struct snd_sb_csp * p); |
| 91 | static int snd_sb_csp_restart(struct snd_sb_csp * p); |
| 92 | |
| 93 | static int snd_sb_qsound_build(struct snd_sb_csp * p); |
| 94 | static void snd_sb_qsound_destroy(struct snd_sb_csp * p); |
| 95 | static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p); |
| 96 | |
| 97 | static int init_proc_entry(struct snd_sb_csp * p, int device); |
| 98 | static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer); |
| 99 | |
| 100 | /* |
| 101 | * Detect CSP chip and create a new instance |
| 102 | */ |
| 103 | int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep) |
| 104 | { |
| 105 | struct snd_sb_csp *p; |
| 106 | int version; |
| 107 | int err; |
| 108 | struct snd_hwdep *hw; |
| 109 | |
| 110 | if (rhwdep) |
| 111 | *rhwdep = NULL; |
| 112 | |
| 113 | if (csp_detect(chip, version: &version)) |
| 114 | return -ENODEV; |
| 115 | |
| 116 | err = snd_hwdep_new(card: chip->card, id: "SB16-CSP" , device, rhwdep: &hw); |
| 117 | if (err < 0) |
| 118 | return err; |
| 119 | |
| 120 | p = kzalloc(sizeof(*p), GFP_KERNEL); |
| 121 | if (!p) { |
| 122 | snd_device_free(card: chip->card, device_data: hw); |
| 123 | return -ENOMEM; |
| 124 | } |
| 125 | p->chip = chip; |
| 126 | p->version = version; |
| 127 | |
| 128 | /* CSP operators */ |
| 129 | p->ops.csp_use = snd_sb_csp_use; |
| 130 | p->ops.csp_unuse = snd_sb_csp_unuse; |
| 131 | p->ops.csp_autoload = snd_sb_csp_autoload; |
| 132 | p->ops.csp_start = snd_sb_csp_start; |
| 133 | p->ops.csp_stop = snd_sb_csp_stop; |
| 134 | p->ops.csp_qsound_transfer = snd_sb_csp_qsound_transfer; |
| 135 | |
| 136 | mutex_init(&p->access_mutex); |
| 137 | sprintf(buf: hw->name, fmt: "CSP v%d.%d" , (version >> 4), (version & 0x0f)); |
| 138 | hw->iface = SNDRV_HWDEP_IFACE_SB16CSP; |
| 139 | hw->private_data = p; |
| 140 | hw->private_free = snd_sb_csp_free; |
| 141 | |
| 142 | /* operators - only write/ioctl */ |
| 143 | hw->ops.open = snd_sb_csp_open; |
| 144 | hw->ops.ioctl = snd_sb_csp_ioctl; |
| 145 | hw->ops.release = snd_sb_csp_release; |
| 146 | |
| 147 | /* create a proc entry */ |
| 148 | init_proc_entry(p, device); |
| 149 | if (rhwdep) |
| 150 | *rhwdep = hw; |
| 151 | return 0; |
| 152 | } |
| 153 | |
| 154 | /* |
| 155 | * free_private for hwdep instance |
| 156 | */ |
| 157 | static void snd_sb_csp_free(struct snd_hwdep *hwdep) |
| 158 | { |
| 159 | int i; |
| 160 | struct snd_sb_csp *p = hwdep->private_data; |
| 161 | if (p) { |
| 162 | if (p->running & SNDRV_SB_CSP_ST_RUNNING) |
| 163 | snd_sb_csp_stop(p); |
| 164 | for (i = 0; i < ARRAY_SIZE(p->csp_programs); ++i) |
| 165 | release_firmware(fw: p->csp_programs[i]); |
| 166 | kfree(objp: p); |
| 167 | } |
| 168 | } |
| 169 | |
| 170 | /* ------------------------------ */ |
| 171 | |
| 172 | /* |
| 173 | * open the device exclusively |
| 174 | */ |
| 175 | static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file) |
| 176 | { |
| 177 | struct snd_sb_csp *p = hw->private_data; |
| 178 | return (snd_sb_csp_use(p)); |
| 179 | } |
| 180 | |
| 181 | /* |
| 182 | * ioctl for hwdep device: |
| 183 | */ |
| 184 | static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg) |
| 185 | { |
| 186 | struct snd_sb_csp *p = hw->private_data; |
| 187 | struct snd_sb_csp_info info; |
| 188 | struct snd_sb_csp_start start_info; |
| 189 | int err; |
| 190 | |
| 191 | if (snd_BUG_ON(!p)) |
| 192 | return -EINVAL; |
| 193 | |
| 194 | if (snd_sb_csp_check_version(p)) |
| 195 | return -ENODEV; |
| 196 | |
| 197 | switch (cmd) { |
| 198 | /* get information */ |
| 199 | case SNDRV_SB_CSP_IOCTL_INFO: |
| 200 | memset(&info, 0, sizeof(info)); |
| 201 | *info.codec_name = *p->codec_name; |
| 202 | info.func_nr = p->func_nr; |
| 203 | info.acc_format = p->acc_format; |
| 204 | info.acc_channels = p->acc_channels; |
| 205 | info.acc_width = p->acc_width; |
| 206 | info.acc_rates = p->acc_rates; |
| 207 | info.csp_mode = p->mode; |
| 208 | info.run_channels = p->run_channels; |
| 209 | info.run_width = p->run_width; |
| 210 | info.version = p->version; |
| 211 | info.state = p->running; |
| 212 | if (copy_to_user(to: (void __user *)arg, from: &info, n: sizeof(info))) |
| 213 | err = -EFAULT; |
| 214 | else |
| 215 | err = 0; |
| 216 | break; |
| 217 | |
| 218 | /* load CSP microcode */ |
| 219 | case SNDRV_SB_CSP_IOCTL_LOAD_CODE: |
| 220 | err = (p->running & SNDRV_SB_CSP_ST_RUNNING ? |
| 221 | -EBUSY : snd_sb_csp_riff_load(p, code: (struct snd_sb_csp_microcode __user *) arg)); |
| 222 | break; |
| 223 | case SNDRV_SB_CSP_IOCTL_UNLOAD_CODE: |
| 224 | err = (p->running & SNDRV_SB_CSP_ST_RUNNING ? |
| 225 | -EBUSY : snd_sb_csp_unload(p)); |
| 226 | break; |
| 227 | |
| 228 | /* change CSP running state */ |
| 229 | case SNDRV_SB_CSP_IOCTL_START: |
| 230 | if (copy_from_user(to: &start_info, from: (void __user *) arg, n: sizeof(start_info))) |
| 231 | err = -EFAULT; |
| 232 | else |
| 233 | err = snd_sb_csp_start(p, sample_width: start_info.sample_width, channels: start_info.channels); |
| 234 | break; |
| 235 | case SNDRV_SB_CSP_IOCTL_STOP: |
| 236 | err = snd_sb_csp_stop(p); |
| 237 | break; |
| 238 | case SNDRV_SB_CSP_IOCTL_PAUSE: |
| 239 | err = snd_sb_csp_pause(p); |
| 240 | break; |
| 241 | case SNDRV_SB_CSP_IOCTL_RESTART: |
| 242 | err = snd_sb_csp_restart(p); |
| 243 | break; |
| 244 | default: |
| 245 | err = -ENOTTY; |
| 246 | break; |
| 247 | } |
| 248 | |
| 249 | return err; |
| 250 | } |
| 251 | |
| 252 | /* |
| 253 | * close the device |
| 254 | */ |
| 255 | static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file) |
| 256 | { |
| 257 | struct snd_sb_csp *p = hw->private_data; |
| 258 | return (snd_sb_csp_unuse(p)); |
| 259 | } |
| 260 | |
| 261 | /* ------------------------------ */ |
| 262 | |
| 263 | /* |
| 264 | * acquire device |
| 265 | */ |
| 266 | static int snd_sb_csp_use(struct snd_sb_csp * p) |
| 267 | { |
| 268 | guard(mutex)(T: &p->access_mutex); |
| 269 | if (p->used) |
| 270 | return -EAGAIN; |
| 271 | p->used++; |
| 272 | return 0; |
| 273 | |
| 274 | } |
| 275 | |
| 276 | /* |
| 277 | * release device |
| 278 | */ |
| 279 | static int snd_sb_csp_unuse(struct snd_sb_csp * p) |
| 280 | { |
| 281 | guard(mutex)(T: &p->access_mutex); |
| 282 | p->used--; |
| 283 | return 0; |
| 284 | } |
| 285 | |
| 286 | /* |
| 287 | * load microcode via ioctl: |
| 288 | * code is user-space pointer |
| 289 | */ |
| 290 | static int snd_sb_csp_riff_load(struct snd_sb_csp * p, |
| 291 | struct snd_sb_csp_microcode __user * mcode) |
| 292 | { |
| 293 | struct snd_sb_csp_mc_header info; |
| 294 | struct device *dev = p->chip->card->dev; |
| 295 | |
| 296 | unsigned char __user *data_ptr; |
| 297 | unsigned char __user *data_end; |
| 298 | unsigned short func_nr = 0; |
| 299 | |
| 300 | struct riff_header file_h, item_h, code_h; |
| 301 | __le32 item_type; |
| 302 | struct desc_header funcdesc_h; |
| 303 | |
| 304 | int err; |
| 305 | |
| 306 | if (copy_from_user(to: &info, from: mcode, n: sizeof(info))) |
| 307 | return -EFAULT; |
| 308 | data_ptr = mcode->data; |
| 309 | |
| 310 | if (copy_from_user(to: &file_h, from: data_ptr, n: sizeof(file_h))) |
| 311 | return -EFAULT; |
| 312 | if ((le32_to_cpu(file_h.name) != RIFF_HEADER) || |
| 313 | (le32_to_cpu(file_h.len) >= SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE - sizeof(file_h))) { |
| 314 | dev_dbg(dev, "%s: Invalid RIFF header\n" , __func__); |
| 315 | return -EINVAL; |
| 316 | } |
| 317 | data_ptr += sizeof(file_h); |
| 318 | data_end = data_ptr + le32_to_cpu(file_h.len); |
| 319 | |
| 320 | if (copy_from_user(to: &item_type, from: data_ptr, n: sizeof(item_type))) |
| 321 | return -EFAULT; |
| 322 | if (le32_to_cpu(item_type) != CSP__HEADER) { |
| 323 | dev_dbg(dev, "%s: Invalid RIFF file type\n" , __func__); |
| 324 | return -EINVAL; |
| 325 | } |
| 326 | data_ptr += sizeof (item_type); |
| 327 | |
| 328 | for (; data_ptr < data_end; data_ptr += le32_to_cpu(item_h.len)) { |
| 329 | if (copy_from_user(to: &item_h, from: data_ptr, n: sizeof(item_h))) |
| 330 | return -EFAULT; |
| 331 | data_ptr += sizeof(item_h); |
| 332 | if (le32_to_cpu(item_h.name) != LIST_HEADER) |
| 333 | continue; |
| 334 | |
| 335 | if (copy_from_user(to: &item_type, from: data_ptr, n: sizeof(item_type))) |
| 336 | return -EFAULT; |
| 337 | switch (le32_to_cpu(item_type)) { |
| 338 | case FUNC_HEADER: |
| 339 | if (copy_from_user(to: &funcdesc_h, from: data_ptr + sizeof(item_type), n: sizeof(funcdesc_h))) |
| 340 | return -EFAULT; |
| 341 | func_nr = le16_to_cpu(funcdesc_h.func_nr); |
| 342 | break; |
| 343 | case CODE_HEADER: |
| 344 | if (func_nr != info.func_req) |
| 345 | break; /* not required function, try next */ |
| 346 | data_ptr += sizeof(item_type); |
| 347 | |
| 348 | /* destroy QSound mixer element */ |
| 349 | if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) { |
| 350 | snd_sb_qsound_destroy(p); |
| 351 | } |
| 352 | /* Clear all flags */ |
| 353 | p->running = 0; |
| 354 | p->mode = 0; |
| 355 | |
| 356 | /* load microcode blocks */ |
| 357 | for (;;) { |
| 358 | if (data_ptr >= data_end) |
| 359 | return -EINVAL; |
| 360 | if (copy_from_user(to: &code_h, from: data_ptr, n: sizeof(code_h))) |
| 361 | return -EFAULT; |
| 362 | |
| 363 | /* init microcode blocks */ |
| 364 | if (le32_to_cpu(code_h.name) != INIT_HEADER) |
| 365 | break; |
| 366 | data_ptr += sizeof(code_h); |
| 367 | err = snd_sb_csp_load_user(p, buf: data_ptr, le32_to_cpu(code_h.len), |
| 368 | SNDRV_SB_CSP_LOAD_INITBLOCK); |
| 369 | if (err) |
| 370 | return err; |
| 371 | data_ptr += le32_to_cpu(code_h.len); |
| 372 | } |
| 373 | /* main microcode block */ |
| 374 | if (copy_from_user(to: &code_h, from: data_ptr, n: sizeof(code_h))) |
| 375 | return -EFAULT; |
| 376 | |
| 377 | if (le32_to_cpu(code_h.name) != MAIN_HEADER) { |
| 378 | dev_dbg(dev, "%s: Missing 'main' microcode\n" , __func__); |
| 379 | return -EINVAL; |
| 380 | } |
| 381 | data_ptr += sizeof(code_h); |
| 382 | err = snd_sb_csp_load_user(p, buf: data_ptr, |
| 383 | le32_to_cpu(code_h.len), load_flags: 0); |
| 384 | if (err) |
| 385 | return err; |
| 386 | |
| 387 | /* fill in codec header */ |
| 388 | strscpy(p->codec_name, info.codec_name, sizeof(p->codec_name)); |
| 389 | p->func_nr = func_nr; |
| 390 | p->mode = le16_to_cpu(funcdesc_h.flags_play_rec); |
| 391 | switch (le16_to_cpu(funcdesc_h.VOC_type)) { |
| 392 | case 0x0001: /* QSound decoder */ |
| 393 | if (le16_to_cpu(funcdesc_h.flags_play_rec) == SNDRV_SB_CSP_MODE_DSP_WRITE) { |
| 394 | if (snd_sb_qsound_build(p) == 0) |
| 395 | /* set QSound flag and clear all other mode flags */ |
| 396 | p->mode = SNDRV_SB_CSP_MODE_QSOUND; |
| 397 | } |
| 398 | p->acc_format = 0; |
| 399 | break; |
| 400 | case 0x0006: /* A Law codec */ |
| 401 | p->acc_format = SNDRV_PCM_FMTBIT_A_LAW; |
| 402 | break; |
| 403 | case 0x0007: /* Mu Law codec */ |
| 404 | p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW; |
| 405 | break; |
| 406 | case 0x0011: /* what Creative thinks is IMA ADPCM codec */ |
| 407 | case 0x0200: /* Creative ADPCM codec */ |
| 408 | p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM; |
| 409 | break; |
| 410 | case 201: /* Text 2 Speech decoder */ |
| 411 | /* TODO: Text2Speech handling routines */ |
| 412 | p->acc_format = 0; |
| 413 | break; |
| 414 | case 0x0202: /* Fast Speech 8 codec */ |
| 415 | case 0x0203: /* Fast Speech 10 codec */ |
| 416 | p->acc_format = SNDRV_PCM_FMTBIT_SPECIAL; |
| 417 | break; |
| 418 | default: /* other codecs are unsupported */ |
| 419 | p->acc_format = p->acc_width = p->acc_rates = 0; |
| 420 | p->mode = 0; |
| 421 | dev_dbg(dev, "%s: Unsupported CSP codec type: 0x%04x\n" , |
| 422 | __func__, |
| 423 | le16_to_cpu(funcdesc_h.VOC_type)); |
| 424 | return -EINVAL; |
| 425 | } |
| 426 | p->acc_channels = le16_to_cpu(funcdesc_h.flags_stereo_mono); |
| 427 | p->acc_width = le16_to_cpu(funcdesc_h.flags_16bit_8bit); |
| 428 | p->acc_rates = le16_to_cpu(funcdesc_h.flags_rates); |
| 429 | |
| 430 | /* Decouple CSP from IRQ and DMAREQ lines */ |
| 431 | guard(spinlock_irqsave)(l: &p->chip->reg_lock); |
| 432 | set_mode_register(chip: p->chip, mode: 0xfc); |
| 433 | set_mode_register(chip: p->chip, mode: 0x00); |
| 434 | |
| 435 | /* finished loading successfully */ |
| 436 | p->running = SNDRV_SB_CSP_ST_LOADED; /* set LOADED flag */ |
| 437 | return 0; |
| 438 | } |
| 439 | } |
| 440 | dev_dbg(dev, "%s: Function #%d not found\n" , __func__, info.func_req); |
| 441 | return -EINVAL; |
| 442 | } |
| 443 | |
| 444 | /* |
| 445 | * unload CSP microcode |
| 446 | */ |
| 447 | static int snd_sb_csp_unload(struct snd_sb_csp * p) |
| 448 | { |
| 449 | if (p->running & SNDRV_SB_CSP_ST_RUNNING) |
| 450 | return -EBUSY; |
| 451 | if (!(p->running & SNDRV_SB_CSP_ST_LOADED)) |
| 452 | return -ENXIO; |
| 453 | |
| 454 | /* clear supported formats */ |
| 455 | p->acc_format = 0; |
| 456 | p->acc_channels = p->acc_width = p->acc_rates = 0; |
| 457 | /* destroy QSound mixer element */ |
| 458 | if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) { |
| 459 | snd_sb_qsound_destroy(p); |
| 460 | } |
| 461 | /* clear all flags */ |
| 462 | p->running = 0; |
| 463 | p->mode = 0; |
| 464 | return 0; |
| 465 | } |
| 466 | |
| 467 | /* |
| 468 | * send command sequence to DSP |
| 469 | */ |
| 470 | static inline int command_seq(struct snd_sb *chip, const unsigned char *seq, int size) |
| 471 | { |
| 472 | int i; |
| 473 | for (i = 0; i < size; i++) { |
| 474 | if (!snd_sbdsp_command(chip, val: seq[i])) |
| 475 | return -EIO; |
| 476 | } |
| 477 | return 0; |
| 478 | } |
| 479 | |
| 480 | /* |
| 481 | * set CSP codec parameter |
| 482 | */ |
| 483 | static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val) |
| 484 | { |
| 485 | unsigned char dsp_cmd[3]; |
| 486 | |
| 487 | dsp_cmd[0] = 0x05; /* CSP set codec parameter */ |
| 488 | dsp_cmd[1] = val; /* Parameter value */ |
| 489 | dsp_cmd[2] = par; /* Parameter */ |
| 490 | command_seq(chip, seq: dsp_cmd, size: 3); |
| 491 | snd_sbdsp_command(chip, val: 0x03); /* DSP read? */ |
| 492 | if (snd_sbdsp_get_byte(chip) != par) |
| 493 | return -EIO; |
| 494 | return 0; |
| 495 | } |
| 496 | |
| 497 | /* |
| 498 | * set CSP register |
| 499 | */ |
| 500 | static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val) |
| 501 | { |
| 502 | unsigned char dsp_cmd[3]; |
| 503 | |
| 504 | dsp_cmd[0] = 0x0e; /* CSP set register */ |
| 505 | dsp_cmd[1] = reg; /* CSP Register */ |
| 506 | dsp_cmd[2] = val; /* value */ |
| 507 | return command_seq(chip, seq: dsp_cmd, size: 3); |
| 508 | } |
| 509 | |
| 510 | /* |
| 511 | * read CSP register |
| 512 | * return < 0 -> error |
| 513 | */ |
| 514 | static int read_register(struct snd_sb *chip, unsigned char reg) |
| 515 | { |
| 516 | unsigned char dsp_cmd[2]; |
| 517 | |
| 518 | dsp_cmd[0] = 0x0f; /* CSP read register */ |
| 519 | dsp_cmd[1] = reg; /* CSP Register */ |
| 520 | command_seq(chip, seq: dsp_cmd, size: 2); |
| 521 | return snd_sbdsp_get_byte(chip); /* Read DSP value */ |
| 522 | } |
| 523 | |
| 524 | /* |
| 525 | * set CSP mode register |
| 526 | */ |
| 527 | static int set_mode_register(struct snd_sb *chip, unsigned char mode) |
| 528 | { |
| 529 | unsigned char dsp_cmd[2]; |
| 530 | |
| 531 | dsp_cmd[0] = 0x04; /* CSP set mode register */ |
| 532 | dsp_cmd[1] = mode; /* mode */ |
| 533 | return command_seq(chip, seq: dsp_cmd, size: 2); |
| 534 | } |
| 535 | |
| 536 | /* |
| 537 | * Detect CSP |
| 538 | * return 0 if CSP exists. |
| 539 | */ |
| 540 | static int csp_detect(struct snd_sb *chip, int *version) |
| 541 | { |
| 542 | unsigned char csp_test1, csp_test2; |
| 543 | |
| 544 | guard(spinlock_irqsave)(l: &chip->reg_lock); |
| 545 | |
| 546 | set_codec_parameter(chip, par: 0x00, val: 0x00); |
| 547 | set_mode_register(chip, mode: 0xfc); /* 0xfc = ?? */ |
| 548 | |
| 549 | csp_test1 = read_register(chip, reg: 0x83); |
| 550 | set_register(chip, reg: 0x83, val: ~csp_test1); |
| 551 | csp_test2 = read_register(chip, reg: 0x83); |
| 552 | if (csp_test2 != (csp_test1 ^ 0xff)) |
| 553 | return -ENODEV; |
| 554 | |
| 555 | set_register(chip, reg: 0x83, val: csp_test1); |
| 556 | csp_test2 = read_register(chip, reg: 0x83); |
| 557 | if (csp_test2 != csp_test1) |
| 558 | return -ENODEV; |
| 559 | |
| 560 | set_mode_register(chip, mode: 0x00); /* 0x00 = ? */ |
| 561 | |
| 562 | *version = get_version(chip); |
| 563 | snd_sbdsp_reset(chip); /* reset DSP after getversion! */ |
| 564 | if (*version >= 0x10 && *version <= 0x1f) |
| 565 | return 0; /* valid version id */ |
| 566 | |
| 567 | return -ENODEV; |
| 568 | } |
| 569 | |
| 570 | /* |
| 571 | * get CSP version number |
| 572 | */ |
| 573 | static int get_version(struct snd_sb *chip) |
| 574 | { |
| 575 | unsigned char dsp_cmd[2]; |
| 576 | |
| 577 | dsp_cmd[0] = 0x08; /* SB_DSP_!something! */ |
| 578 | dsp_cmd[1] = 0x03; /* get chip version id? */ |
| 579 | command_seq(chip, seq: dsp_cmd, size: 2); |
| 580 | |
| 581 | return (snd_sbdsp_get_byte(chip)); |
| 582 | } |
| 583 | |
| 584 | /* |
| 585 | * check if the CSP version is valid |
| 586 | */ |
| 587 | static int snd_sb_csp_check_version(struct snd_sb_csp * p) |
| 588 | { |
| 589 | if (p->version < 0x10 || p->version > 0x1f) { |
| 590 | dev_dbg(p->chip->card->dev, |
| 591 | "%s: Invalid CSP version: 0x%x\n" , |
| 592 | __func__, p->version); |
| 593 | return 1; |
| 594 | } |
| 595 | return 0; |
| 596 | } |
| 597 | |
| 598 | /* |
| 599 | * download microcode to CSP (microcode should have one "main" block). |
| 600 | */ |
| 601 | static int snd_sb_csp_load(struct snd_sb_csp * p, const unsigned char *buf, int size, int load_flags) |
| 602 | { |
| 603 | int status, i; |
| 604 | int err; |
| 605 | |
| 606 | guard(spinlock_irqsave)(l: &p->chip->reg_lock); |
| 607 | snd_sbdsp_command(chip: p->chip, val: 0x01); /* CSP download command */ |
| 608 | if (snd_sbdsp_get_byte(chip: p->chip)) { |
| 609 | dev_dbg(p->chip->card->dev, "%s: Download command failed\n" , __func__); |
| 610 | return -EIO; |
| 611 | } |
| 612 | /* Send CSP low byte (size - 1) */ |
| 613 | snd_sbdsp_command(chip: p->chip, val: (unsigned char)(size - 1)); |
| 614 | /* Send high byte */ |
| 615 | snd_sbdsp_command(chip: p->chip, val: (unsigned char)((size - 1) >> 8)); |
| 616 | /* send microcode sequence */ |
| 617 | /* load from kernel space */ |
| 618 | while (size--) { |
| 619 | if (!snd_sbdsp_command(chip: p->chip, val: *buf++)) |
| 620 | return -EIO; |
| 621 | } |
| 622 | if (snd_sbdsp_get_byte(chip: p->chip)) |
| 623 | return -EIO; |
| 624 | |
| 625 | if (load_flags & SNDRV_SB_CSP_LOAD_INITBLOCK) { |
| 626 | i = 0; |
| 627 | /* some codecs (FastSpeech) take some time to initialize */ |
| 628 | while (1) { |
| 629 | snd_sbdsp_command(chip: p->chip, val: 0x03); |
| 630 | status = snd_sbdsp_get_byte(chip: p->chip); |
| 631 | if (status == 0x55 || ++i >= 10) |
| 632 | break; |
| 633 | udelay (usec: 10); |
| 634 | } |
| 635 | if (status != 0x55) { |
| 636 | dev_dbg(p->chip->card->dev, |
| 637 | "%s: Microcode initialization failed\n" , |
| 638 | __func__); |
| 639 | return -EIO; |
| 640 | } |
| 641 | } else { |
| 642 | /* |
| 643 | * Read mixer register SB_DSP4_DMASETUP after loading 'main' code. |
| 644 | * Start CSP chip if no 16bit DMA channel is set - some kind |
| 645 | * of autorun or perhaps a bugfix? |
| 646 | */ |
| 647 | scoped_guard(spinlock, &p->chip->mixer_lock) { |
| 648 | status = snd_sbmixer_read(chip: p->chip, SB_DSP4_DMASETUP); |
| 649 | } |
| 650 | if (!(status & (SB_DMASETUP_DMA7 | SB_DMASETUP_DMA6 | SB_DMASETUP_DMA5))) { |
| 651 | err = (set_codec_parameter(chip: p->chip, par: 0xaa, val: 0x00) || |
| 652 | set_codec_parameter(chip: p->chip, par: 0xff, val: 0x00)); |
| 653 | snd_sbdsp_reset(chip: p->chip); /* really! */ |
| 654 | if (err) |
| 655 | return -EIO; |
| 656 | set_mode_register(chip: p->chip, mode: 0xc0); /* c0 = STOP */ |
| 657 | set_mode_register(chip: p->chip, mode: 0x70); /* 70 = RUN */ |
| 658 | } |
| 659 | } |
| 660 | |
| 661 | return 0; |
| 662 | } |
| 663 | |
| 664 | static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags) |
| 665 | { |
| 666 | int err; |
| 667 | unsigned char *kbuf; |
| 668 | |
| 669 | kbuf = memdup_user(buf, size); |
| 670 | if (IS_ERR(ptr: kbuf)) |
| 671 | return PTR_ERR(ptr: kbuf); |
| 672 | |
| 673 | err = snd_sb_csp_load(p, buf: kbuf, size, load_flags); |
| 674 | |
| 675 | kfree(objp: kbuf); |
| 676 | return err; |
| 677 | } |
| 678 | |
| 679 | static int snd_sb_csp_firmware_load(struct snd_sb_csp *p, int index, int flags) |
| 680 | { |
| 681 | static const char *const names[] = { |
| 682 | "sb16/mulaw_main.csp" , |
| 683 | "sb16/alaw_main.csp" , |
| 684 | "sb16/ima_adpcm_init.csp" , |
| 685 | "sb16/ima_adpcm_playback.csp" , |
| 686 | "sb16/ima_adpcm_capture.csp" , |
| 687 | }; |
| 688 | const struct firmware *program; |
| 689 | |
| 690 | BUILD_BUG_ON(ARRAY_SIZE(names) != CSP_PROGRAM_COUNT); |
| 691 | program = p->csp_programs[index]; |
| 692 | if (!program) { |
| 693 | int err = request_firmware(fw: &program, name: names[index], |
| 694 | device: p->chip->card->dev); |
| 695 | if (err < 0) |
| 696 | return err; |
| 697 | p->csp_programs[index] = program; |
| 698 | } |
| 699 | return snd_sb_csp_load(p, buf: program->data, size: program->size, load_flags: flags); |
| 700 | } |
| 701 | |
| 702 | /* |
| 703 | * autoload hardware codec if necessary |
| 704 | * return 0 if CSP is loaded and ready to run (p->running != 0) |
| 705 | */ |
| 706 | static int snd_sb_csp_autoload(struct snd_sb_csp * p, snd_pcm_format_t pcm_sfmt, int play_rec_mode) |
| 707 | { |
| 708 | int err = 0; |
| 709 | |
| 710 | /* if CSP is running or manually loaded then exit */ |
| 711 | if (p->running & (SNDRV_SB_CSP_ST_RUNNING | SNDRV_SB_CSP_ST_LOADED)) |
| 712 | return -EBUSY; |
| 713 | |
| 714 | /* autoload microcode only if requested hardware codec is not already loaded */ |
| 715 | if (((1U << (__force int)pcm_sfmt) & p->acc_format) && (play_rec_mode & p->mode)) { |
| 716 | p->running = SNDRV_SB_CSP_ST_AUTO; |
| 717 | } else { |
| 718 | switch (pcm_sfmt) { |
| 719 | case SNDRV_PCM_FORMAT_MU_LAW: |
| 720 | err = snd_sb_csp_firmware_load(p, index: CSP_PROGRAM_MULAW, flags: 0); |
| 721 | p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW; |
| 722 | p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE; |
| 723 | break; |
| 724 | case SNDRV_PCM_FORMAT_A_LAW: |
| 725 | err = snd_sb_csp_firmware_load(p, index: CSP_PROGRAM_ALAW, flags: 0); |
| 726 | p->acc_format = SNDRV_PCM_FMTBIT_A_LAW; |
| 727 | p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE; |
| 728 | break; |
| 729 | case SNDRV_PCM_FORMAT_IMA_ADPCM: |
| 730 | err = snd_sb_csp_firmware_load(p, index: CSP_PROGRAM_ADPCM_INIT, |
| 731 | SNDRV_SB_CSP_LOAD_INITBLOCK); |
| 732 | if (err) |
| 733 | break; |
| 734 | if (play_rec_mode == SNDRV_SB_CSP_MODE_DSP_WRITE) { |
| 735 | err = snd_sb_csp_firmware_load |
| 736 | (p, index: CSP_PROGRAM_ADPCM_PLAYBACK, flags: 0); |
| 737 | p->mode = SNDRV_SB_CSP_MODE_DSP_WRITE; |
| 738 | } else { |
| 739 | err = snd_sb_csp_firmware_load |
| 740 | (p, index: CSP_PROGRAM_ADPCM_CAPTURE, flags: 0); |
| 741 | p->mode = SNDRV_SB_CSP_MODE_DSP_READ; |
| 742 | } |
| 743 | p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM; |
| 744 | break; |
| 745 | default: |
| 746 | /* Decouple CSP from IRQ and DMAREQ lines */ |
| 747 | if (p->running & SNDRV_SB_CSP_ST_AUTO) { |
| 748 | guard(spinlock_irqsave)(l: &p->chip->reg_lock); |
| 749 | set_mode_register(chip: p->chip, mode: 0xfc); |
| 750 | set_mode_register(chip: p->chip, mode: 0x00); |
| 751 | p->running = 0; /* clear autoloaded flag */ |
| 752 | } |
| 753 | return -EINVAL; |
| 754 | } |
| 755 | if (err) { |
| 756 | p->acc_format = 0; |
| 757 | p->acc_channels = p->acc_width = p->acc_rates = 0; |
| 758 | |
| 759 | p->running = 0; /* clear autoloaded flag */ |
| 760 | p->mode = 0; |
| 761 | return (err); |
| 762 | } else { |
| 763 | p->running = SNDRV_SB_CSP_ST_AUTO; /* set autoloaded flag */ |
| 764 | p->acc_width = SNDRV_SB_CSP_SAMPLE_16BIT; /* only 16 bit data */ |
| 765 | p->acc_channels = SNDRV_SB_CSP_MONO | SNDRV_SB_CSP_STEREO; |
| 766 | p->acc_rates = SNDRV_SB_CSP_RATE_ALL; /* HW codecs accept all rates */ |
| 767 | } |
| 768 | |
| 769 | } |
| 770 | return (p->running & SNDRV_SB_CSP_ST_AUTO) ? 0 : -ENXIO; |
| 771 | } |
| 772 | |
| 773 | /* |
| 774 | * start CSP |
| 775 | */ |
| 776 | static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels) |
| 777 | { |
| 778 | struct device *dev = p->chip->card->dev; |
| 779 | unsigned char s_type; /* sample type */ |
| 780 | unsigned char mixL, mixR; |
| 781 | int result = -EIO; |
| 782 | |
| 783 | if (!(p->running & (SNDRV_SB_CSP_ST_LOADED | SNDRV_SB_CSP_ST_AUTO))) { |
| 784 | dev_dbg(dev, "%s: Microcode not loaded\n" , __func__); |
| 785 | return -ENXIO; |
| 786 | } |
| 787 | if (p->running & SNDRV_SB_CSP_ST_RUNNING) { |
| 788 | dev_dbg(dev, "%s: CSP already running\n" , __func__); |
| 789 | return -EBUSY; |
| 790 | } |
| 791 | if (!(sample_width & p->acc_width)) { |
| 792 | dev_dbg(dev, "%s: Unsupported PCM sample width\n" , __func__); |
| 793 | return -EINVAL; |
| 794 | } |
| 795 | if (!(channels & p->acc_channels)) { |
| 796 | dev_dbg(dev, "%s: Invalid number of channels\n" , __func__); |
| 797 | return -EINVAL; |
| 798 | } |
| 799 | |
| 800 | /* Mute PCM volume */ |
| 801 | scoped_guard(spinlock_irqsave, &p->chip->mixer_lock) { |
| 802 | mixL = snd_sbmixer_read(chip: p->chip, SB_DSP4_PCM_DEV); |
| 803 | mixR = snd_sbmixer_read(chip: p->chip, SB_DSP4_PCM_DEV + 1); |
| 804 | snd_sbmixer_write(chip: p->chip, SB_DSP4_PCM_DEV, data: mixL & 0x7); |
| 805 | snd_sbmixer_write(chip: p->chip, SB_DSP4_PCM_DEV + 1, data: mixR & 0x7); |
| 806 | } |
| 807 | |
| 808 | scoped_guard(spinlock, &p->chip->reg_lock) { |
| 809 | set_mode_register(chip: p->chip, mode: 0xc0); /* c0 = STOP */ |
| 810 | set_mode_register(chip: p->chip, mode: 0x70); /* 70 = RUN */ |
| 811 | |
| 812 | s_type = 0x00; |
| 813 | if (channels == SNDRV_SB_CSP_MONO) |
| 814 | s_type = 0x11; /* 000n 000n (n = 1 if mono) */ |
| 815 | if (sample_width == SNDRV_SB_CSP_SAMPLE_8BIT) |
| 816 | s_type |= 0x22; /* 00dX 00dX (d = 1 if 8 bit samples) */ |
| 817 | |
| 818 | if (set_codec_parameter(chip: p->chip, par: 0x81, val: s_type)) { |
| 819 | dev_dbg(dev, "%s: Set sample type command failed\n" , __func__); |
| 820 | break; |
| 821 | } |
| 822 | if (set_codec_parameter(chip: p->chip, par: 0x80, val: 0x00)) { |
| 823 | dev_dbg(dev, "%s: Codec start command failed\n" , __func__); |
| 824 | break; |
| 825 | } |
| 826 | p->run_width = sample_width; |
| 827 | p->run_channels = channels; |
| 828 | |
| 829 | p->running |= SNDRV_SB_CSP_ST_RUNNING; |
| 830 | |
| 831 | if (p->mode & SNDRV_SB_CSP_MODE_QSOUND) { |
| 832 | set_codec_parameter(chip: p->chip, par: 0xe0, val: 0x01); |
| 833 | /* enable QSound decoder */ |
| 834 | set_codec_parameter(chip: p->chip, par: 0x00, val: 0xff); |
| 835 | set_codec_parameter(chip: p->chip, par: 0x01, val: 0xff); |
| 836 | p->running |= SNDRV_SB_CSP_ST_QSOUND; |
| 837 | /* set QSound startup value */ |
| 838 | snd_sb_csp_qsound_transfer(p); |
| 839 | } |
| 840 | result = 0; |
| 841 | } |
| 842 | |
| 843 | /* restore PCM volume */ |
| 844 | if (result < 0) { |
| 845 | guard(spinlock_irqsave)(l: &p->chip->mixer_lock); |
| 846 | snd_sbmixer_write(chip: p->chip, SB_DSP4_PCM_DEV, data: mixL); |
| 847 | snd_sbmixer_write(chip: p->chip, SB_DSP4_PCM_DEV + 1, data: mixR); |
| 848 | } |
| 849 | |
| 850 | return result; |
| 851 | } |
| 852 | |
| 853 | /* |
| 854 | * stop CSP |
| 855 | */ |
| 856 | static int snd_sb_csp_stop(struct snd_sb_csp * p) |
| 857 | { |
| 858 | int result; |
| 859 | unsigned char mixL, mixR; |
| 860 | |
| 861 | if (!(p->running & SNDRV_SB_CSP_ST_RUNNING)) |
| 862 | return 0; |
| 863 | |
| 864 | /* Mute PCM volume */ |
| 865 | scoped_guard(spinlock_irqsave, &p->chip->mixer_lock) { |
| 866 | mixL = snd_sbmixer_read(chip: p->chip, SB_DSP4_PCM_DEV); |
| 867 | mixR = snd_sbmixer_read(chip: p->chip, SB_DSP4_PCM_DEV + 1); |
| 868 | snd_sbmixer_write(chip: p->chip, SB_DSP4_PCM_DEV, data: mixL & 0x7); |
| 869 | snd_sbmixer_write(chip: p->chip, SB_DSP4_PCM_DEV + 1, data: mixR & 0x7); |
| 870 | } |
| 871 | |
| 872 | scoped_guard(spinlock, &p->chip->reg_lock) { |
| 873 | if (p->running & SNDRV_SB_CSP_ST_QSOUND) { |
| 874 | set_codec_parameter(chip: p->chip, par: 0xe0, val: 0x01); |
| 875 | /* disable QSound decoder */ |
| 876 | set_codec_parameter(chip: p->chip, par: 0x00, val: 0x00); |
| 877 | set_codec_parameter(chip: p->chip, par: 0x01, val: 0x00); |
| 878 | |
| 879 | p->running &= ~SNDRV_SB_CSP_ST_QSOUND; |
| 880 | } |
| 881 | result = set_mode_register(chip: p->chip, mode: 0xc0); /* c0 = STOP */ |
| 882 | } |
| 883 | |
| 884 | /* restore PCM volume */ |
| 885 | scoped_guard(spinlock_irqsave, &p->chip->mixer_lock) { |
| 886 | snd_sbmixer_write(chip: p->chip, SB_DSP4_PCM_DEV, data: mixL); |
| 887 | snd_sbmixer_write(chip: p->chip, SB_DSP4_PCM_DEV + 1, data: mixR); |
| 888 | } |
| 889 | |
| 890 | if (!(result)) |
| 891 | p->running &= ~(SNDRV_SB_CSP_ST_PAUSED | SNDRV_SB_CSP_ST_RUNNING); |
| 892 | return result; |
| 893 | } |
| 894 | |
| 895 | /* |
| 896 | * pause CSP codec and hold DMA transfer |
| 897 | */ |
| 898 | static int snd_sb_csp_pause(struct snd_sb_csp * p) |
| 899 | { |
| 900 | int result; |
| 901 | |
| 902 | if (!(p->running & SNDRV_SB_CSP_ST_RUNNING)) |
| 903 | return -EBUSY; |
| 904 | |
| 905 | scoped_guard(spinlock_irqsave, &p->chip->reg_lock) { |
| 906 | result = set_codec_parameter(chip: p->chip, par: 0x80, val: 0xff); |
| 907 | } |
| 908 | if (!(result)) |
| 909 | p->running |= SNDRV_SB_CSP_ST_PAUSED; |
| 910 | |
| 911 | return result; |
| 912 | } |
| 913 | |
| 914 | /* |
| 915 | * restart CSP codec and resume DMA transfer |
| 916 | */ |
| 917 | static int snd_sb_csp_restart(struct snd_sb_csp * p) |
| 918 | { |
| 919 | int result; |
| 920 | |
| 921 | if (!(p->running & SNDRV_SB_CSP_ST_PAUSED)) |
| 922 | return -EBUSY; |
| 923 | |
| 924 | scoped_guard(spinlock_irqsave, &p->chip->reg_lock) { |
| 925 | result = set_codec_parameter(chip: p->chip, par: 0x80, val: 0x00); |
| 926 | } |
| 927 | if (!(result)) |
| 928 | p->running &= ~SNDRV_SB_CSP_ST_PAUSED; |
| 929 | |
| 930 | return result; |
| 931 | } |
| 932 | |
| 933 | /* ------------------------------ */ |
| 934 | |
| 935 | /* |
| 936 | * QSound mixer control for PCM |
| 937 | */ |
| 938 | |
| 939 | #define snd_sb_qsound_switch_info snd_ctl_boolean_mono_info |
| 940 | |
| 941 | static int snd_sb_qsound_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
| 942 | { |
| 943 | struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol); |
| 944 | |
| 945 | ucontrol->value.integer.value[0] = p->q_enabled ? 1 : 0; |
| 946 | return 0; |
| 947 | } |
| 948 | |
| 949 | static int snd_sb_qsound_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
| 950 | { |
| 951 | struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol); |
| 952 | int change; |
| 953 | unsigned char nval; |
| 954 | |
| 955 | nval = ucontrol->value.integer.value[0] & 0x01; |
| 956 | guard(spinlock_irqsave)(l: &p->q_lock); |
| 957 | change = p->q_enabled != nval; |
| 958 | p->q_enabled = nval; |
| 959 | return change; |
| 960 | } |
| 961 | |
| 962 | static int snd_sb_qsound_space_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
| 963 | { |
| 964 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
| 965 | uinfo->count = 2; |
| 966 | uinfo->value.integer.min = 0; |
| 967 | uinfo->value.integer.max = SNDRV_SB_CSP_QSOUND_MAX_RIGHT; |
| 968 | return 0; |
| 969 | } |
| 970 | |
| 971 | static int snd_sb_qsound_space_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
| 972 | { |
| 973 | struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol); |
| 974 | |
| 975 | guard(spinlock_irqsave)(l: &p->q_lock); |
| 976 | ucontrol->value.integer.value[0] = p->qpos_left; |
| 977 | ucontrol->value.integer.value[1] = p->qpos_right; |
| 978 | return 0; |
| 979 | } |
| 980 | |
| 981 | static int snd_sb_qsound_space_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
| 982 | { |
| 983 | struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol); |
| 984 | int change; |
| 985 | unsigned char nval1, nval2; |
| 986 | |
| 987 | nval1 = ucontrol->value.integer.value[0]; |
| 988 | if (nval1 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT) |
| 989 | nval1 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT; |
| 990 | nval2 = ucontrol->value.integer.value[1]; |
| 991 | if (nval2 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT) |
| 992 | nval2 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT; |
| 993 | guard(spinlock_irqsave)(l: &p->q_lock); |
| 994 | change = p->qpos_left != nval1 || p->qpos_right != nval2; |
| 995 | p->qpos_left = nval1; |
| 996 | p->qpos_right = nval2; |
| 997 | p->qpos_changed = change; |
| 998 | return change; |
| 999 | } |
| 1000 | |
| 1001 | static const struct snd_kcontrol_new snd_sb_qsound_switch = { |
| 1002 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
| 1003 | .name = "3D Control - Switch" , |
| 1004 | .info = snd_sb_qsound_switch_info, |
| 1005 | .get = snd_sb_qsound_switch_get, |
| 1006 | .put = snd_sb_qsound_switch_put |
| 1007 | }; |
| 1008 | |
| 1009 | static const struct snd_kcontrol_new snd_sb_qsound_space = { |
| 1010 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
| 1011 | .name = "3D Control - Space" , |
| 1012 | .info = snd_sb_qsound_space_info, |
| 1013 | .get = snd_sb_qsound_space_get, |
| 1014 | .put = snd_sb_qsound_space_put |
| 1015 | }; |
| 1016 | |
| 1017 | static int snd_sb_qsound_build(struct snd_sb_csp * p) |
| 1018 | { |
| 1019 | struct snd_card *card; |
| 1020 | struct snd_kcontrol *kctl; |
| 1021 | int err; |
| 1022 | |
| 1023 | if (snd_BUG_ON(!p)) |
| 1024 | return -EINVAL; |
| 1025 | |
| 1026 | card = p->chip->card; |
| 1027 | p->qpos_left = p->qpos_right = SNDRV_SB_CSP_QSOUND_MAX_RIGHT / 2; |
| 1028 | p->qpos_changed = 0; |
| 1029 | |
| 1030 | spin_lock_init(&p->q_lock); |
| 1031 | |
| 1032 | kctl = snd_ctl_new1(kcontrolnew: &snd_sb_qsound_switch, private_data: p); |
| 1033 | err = snd_ctl_add(card, kcontrol: kctl); |
| 1034 | if (err < 0) |
| 1035 | goto __error; |
| 1036 | p->qsound_switch = kctl; |
| 1037 | kctl = snd_ctl_new1(kcontrolnew: &snd_sb_qsound_space, private_data: p); |
| 1038 | err = snd_ctl_add(card, kcontrol: kctl); |
| 1039 | if (err < 0) |
| 1040 | goto __error; |
| 1041 | p->qsound_space = kctl; |
| 1042 | |
| 1043 | return 0; |
| 1044 | |
| 1045 | __error: |
| 1046 | snd_sb_qsound_destroy(p); |
| 1047 | return err; |
| 1048 | } |
| 1049 | |
| 1050 | static void snd_sb_qsound_destroy(struct snd_sb_csp * p) |
| 1051 | { |
| 1052 | struct snd_card *card; |
| 1053 | |
| 1054 | if (snd_BUG_ON(!p)) |
| 1055 | return; |
| 1056 | |
| 1057 | card = p->chip->card; |
| 1058 | |
| 1059 | snd_ctl_remove(card, kcontrol: p->qsound_switch); |
| 1060 | p->qsound_switch = NULL; |
| 1061 | snd_ctl_remove(card, kcontrol: p->qsound_space); |
| 1062 | p->qsound_space = NULL; |
| 1063 | |
| 1064 | /* cancel pending transfer of QSound parameters */ |
| 1065 | guard(spinlock_irqsave)(l: &p->q_lock); |
| 1066 | p->qpos_changed = 0; |
| 1067 | } |
| 1068 | |
| 1069 | /* |
| 1070 | * Transfer qsound parameters to CSP, |
| 1071 | * function should be called from interrupt routine |
| 1072 | */ |
| 1073 | static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p) |
| 1074 | { |
| 1075 | int err = -ENXIO; |
| 1076 | |
| 1077 | guard(spinlock)(l: &p->q_lock); |
| 1078 | if (p->running & SNDRV_SB_CSP_ST_QSOUND) { |
| 1079 | set_codec_parameter(chip: p->chip, par: 0xe0, val: 0x01); |
| 1080 | /* left channel */ |
| 1081 | set_codec_parameter(chip: p->chip, par: 0x00, val: p->qpos_left); |
| 1082 | set_codec_parameter(chip: p->chip, par: 0x02, val: 0x00); |
| 1083 | /* right channel */ |
| 1084 | set_codec_parameter(chip: p->chip, par: 0x00, val: p->qpos_right); |
| 1085 | set_codec_parameter(chip: p->chip, par: 0x03, val: 0x00); |
| 1086 | err = 0; |
| 1087 | } |
| 1088 | p->qpos_changed = 0; |
| 1089 | return err; |
| 1090 | } |
| 1091 | |
| 1092 | /* ------------------------------ */ |
| 1093 | |
| 1094 | /* |
| 1095 | * proc interface |
| 1096 | */ |
| 1097 | static int init_proc_entry(struct snd_sb_csp * p, int device) |
| 1098 | { |
| 1099 | char name[16]; |
| 1100 | |
| 1101 | sprintf(buf: name, fmt: "cspD%d" , device); |
| 1102 | snd_card_ro_proc_new(card: p->chip->card, name, private_data: p, read: info_read); |
| 1103 | return 0; |
| 1104 | } |
| 1105 | |
| 1106 | static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) |
| 1107 | { |
| 1108 | struct snd_sb_csp *p = entry->private_data; |
| 1109 | |
| 1110 | snd_iprintf(buffer, "Creative Signal Processor [v%d.%d]\n" , (p->version >> 4), (p->version & 0x0f)); |
| 1111 | snd_iprintf(buffer, "State: %cx%c%c%c\n" , ((p->running & SNDRV_SB_CSP_ST_QSOUND) ? 'Q' : '-'), |
| 1112 | ((p->running & SNDRV_SB_CSP_ST_PAUSED) ? 'P' : '-'), |
| 1113 | ((p->running & SNDRV_SB_CSP_ST_RUNNING) ? 'R' : '-'), |
| 1114 | ((p->running & SNDRV_SB_CSP_ST_LOADED) ? 'L' : '-')); |
| 1115 | if (p->running & SNDRV_SB_CSP_ST_LOADED) { |
| 1116 | snd_iprintf(buffer, "Codec: %s [func #%d]\n" , p->codec_name, p->func_nr); |
| 1117 | snd_iprintf(buffer, "Sample rates: " ); |
| 1118 | if (p->acc_rates == SNDRV_SB_CSP_RATE_ALL) { |
| 1119 | snd_iprintf(buffer, "All\n" ); |
| 1120 | } else { |
| 1121 | snd_iprintf(buffer, "%s%s%s%s\n" , |
| 1122 | ((p->acc_rates & SNDRV_SB_CSP_RATE_8000) ? "8000Hz " : "" ), |
| 1123 | ((p->acc_rates & SNDRV_SB_CSP_RATE_11025) ? "11025Hz " : "" ), |
| 1124 | ((p->acc_rates & SNDRV_SB_CSP_RATE_22050) ? "22050Hz " : "" ), |
| 1125 | ((p->acc_rates & SNDRV_SB_CSP_RATE_44100) ? "44100Hz" : "" )); |
| 1126 | } |
| 1127 | if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) { |
| 1128 | snd_iprintf(buffer, "QSound decoder %s\n" , |
| 1129 | str_enabled_disabled(p->q_enabled)); |
| 1130 | } else { |
| 1131 | snd_iprintf(buffer, "PCM format ID: 0x%x (%s/%s) [%s/%s] [%s/%s]\n" , |
| 1132 | p->acc_format, |
| 1133 | ((p->acc_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? "16bit" : "-" ), |
| 1134 | ((p->acc_width & SNDRV_SB_CSP_SAMPLE_8BIT) ? "8bit" : "-" ), |
| 1135 | ((p->acc_channels & SNDRV_SB_CSP_MONO) ? "mono" : "-" ), |
| 1136 | ((p->acc_channels & SNDRV_SB_CSP_STEREO) ? "stereo" : "-" ), |
| 1137 | ((p->mode & SNDRV_SB_CSP_MODE_DSP_WRITE) ? "playback" : "-" ), |
| 1138 | ((p->mode & SNDRV_SB_CSP_MODE_DSP_READ) ? "capture" : "-" )); |
| 1139 | } |
| 1140 | } |
| 1141 | if (p->running & SNDRV_SB_CSP_ST_AUTO) { |
| 1142 | snd_iprintf(buffer, "Autoloaded Mu-Law, A-Law or Ima-ADPCM hardware codec\n" ); |
| 1143 | } |
| 1144 | if (p->running & SNDRV_SB_CSP_ST_RUNNING) { |
| 1145 | snd_iprintf(buffer, "Processing %dbit %s PCM samples\n" , |
| 1146 | ((p->run_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? 16 : 8), |
| 1147 | ((p->run_channels & SNDRV_SB_CSP_MONO) ? "mono" : "stereo" )); |
| 1148 | } |
| 1149 | if (p->running & SNDRV_SB_CSP_ST_QSOUND) { |
| 1150 | snd_iprintf(buffer, "Qsound position: left = 0x%x, right = 0x%x\n" , |
| 1151 | p->qpos_left, p->qpos_right); |
| 1152 | } |
| 1153 | } |
| 1154 | |
| 1155 | /* */ |
| 1156 | |
| 1157 | EXPORT_SYMBOL(snd_sb_csp_new); |
| 1158 | |