Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 1 | /* |
| 2 | * |
Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 3 | * |
| 4 | * Copyright (C) 2005 Mike Isely <isely@pobox.com> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | * |
| 19 | */ |
| 20 | |
| 21 | #include "pvrusb2-ctrl.h" |
| 22 | #include "pvrusb2-hdw-internal.h" |
| 23 | #include <linux/errno.h> |
| 24 | #include <linux/string.h> |
| 25 | #include <linux/mutex.h> |
| 26 | |
| 27 | |
Mike Isely | 5549f54 | 2006-12-27 23:28:54 -0300 | [diff] [blame] | 28 | static int pvr2_ctrl_range_check(struct pvr2_ctrl *cptr,int val) |
| 29 | { |
| 30 | if (cptr->info->check_value) { |
| 31 | if (!cptr->info->check_value(cptr,val)) return -ERANGE; |
Mike Isely | fdf256f | 2008-04-22 14:45:38 -0300 | [diff] [blame] | 32 | } else if (cptr->info->type == pvr2_ctl_enum) { |
| 33 | if (val < 0) return -ERANGE; |
| 34 | if (val >= cptr->info->def.type_enum.count) return -ERANGE; |
Mike Isely | 5549f54 | 2006-12-27 23:28:54 -0300 | [diff] [blame] | 35 | } else { |
| 36 | int lim; |
| 37 | lim = cptr->info->def.type_int.min_value; |
| 38 | if (cptr->info->get_min_value) { |
| 39 | cptr->info->get_min_value(cptr,&lim); |
| 40 | } |
| 41 | if (val < lim) return -ERANGE; |
| 42 | lim = cptr->info->def.type_int.max_value; |
| 43 | if (cptr->info->get_max_value) { |
| 44 | cptr->info->get_max_value(cptr,&lim); |
| 45 | } |
| 46 | if (val > lim) return -ERANGE; |
| 47 | } |
| 48 | return 0; |
| 49 | } |
| 50 | |
| 51 | |
Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 52 | /* Set the given control. */ |
| 53 | int pvr2_ctrl_set_value(struct pvr2_ctrl *cptr,int val) |
| 54 | { |
| 55 | return pvr2_ctrl_set_mask_value(cptr,~0,val); |
| 56 | } |
| 57 | |
| 58 | |
| 59 | /* Set/clear specific bits of the given control. */ |
| 60 | int pvr2_ctrl_set_mask_value(struct pvr2_ctrl *cptr,int mask,int val) |
| 61 | { |
| 62 | int ret = 0; |
| 63 | if (!cptr) return -EINVAL; |
| 64 | LOCK_TAKE(cptr->hdw->big_lock); do { |
Al Viro | 5fa1247 | 2008-03-29 03:07:38 +0000 | [diff] [blame] | 65 | if (cptr->info->set_value) { |
Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 66 | if (cptr->info->type == pvr2_ctl_bitmask) { |
| 67 | mask &= cptr->info->def.type_bitmask.valid_bits; |
Mike Isely | fdf256f | 2008-04-22 14:45:38 -0300 | [diff] [blame] | 68 | } else if ((cptr->info->type == pvr2_ctl_int)|| |
| 69 | (cptr->info->type == pvr2_ctl_enum)) { |
Mike Isely | 5549f54 | 2006-12-27 23:28:54 -0300 | [diff] [blame] | 70 | ret = pvr2_ctrl_range_check(cptr,val); |
| 71 | if (ret < 0) break; |
Mike Isely | 3321396 | 2006-06-25 20:04:40 -0300 | [diff] [blame] | 72 | } else if (cptr->info->type != pvr2_ctl_bool) { |
| 73 | break; |
Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 74 | } |
| 75 | ret = cptr->info->set_value(cptr,mask,val); |
| 76 | } else { |
| 77 | ret = -EPERM; |
| 78 | } |
| 79 | } while(0); LOCK_GIVE(cptr->hdw->big_lock); |
| 80 | return ret; |
| 81 | } |
| 82 | |
| 83 | |
| 84 | /* Get the current value of the given control. */ |
| 85 | int pvr2_ctrl_get_value(struct pvr2_ctrl *cptr,int *valptr) |
| 86 | { |
| 87 | int ret = 0; |
| 88 | if (!cptr) return -EINVAL; |
| 89 | LOCK_TAKE(cptr->hdw->big_lock); do { |
| 90 | ret = cptr->info->get_value(cptr,valptr); |
| 91 | } while(0); LOCK_GIVE(cptr->hdw->big_lock); |
| 92 | return ret; |
| 93 | } |
| 94 | |
| 95 | |
| 96 | /* Retrieve control's type */ |
| 97 | enum pvr2_ctl_type pvr2_ctrl_get_type(struct pvr2_ctrl *cptr) |
| 98 | { |
| 99 | if (!cptr) return pvr2_ctl_int; |
| 100 | return cptr->info->type; |
| 101 | } |
| 102 | |
| 103 | |
| 104 | /* Retrieve control's maximum value (int type) */ |
| 105 | int pvr2_ctrl_get_max(struct pvr2_ctrl *cptr) |
| 106 | { |
| 107 | int ret = 0; |
| 108 | if (!cptr) return 0; |
| 109 | LOCK_TAKE(cptr->hdw->big_lock); do { |
Mike Isely | 89ebd63 | 2006-08-08 09:10:07 -0300 | [diff] [blame] | 110 | if (cptr->info->get_max_value) { |
| 111 | cptr->info->get_max_value(cptr,&ret); |
| 112 | } else if (cptr->info->type == pvr2_ctl_int) { |
Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 113 | ret = cptr->info->def.type_int.max_value; |
| 114 | } |
| 115 | } while(0); LOCK_GIVE(cptr->hdw->big_lock); |
| 116 | return ret; |
| 117 | } |
| 118 | |
| 119 | |
| 120 | /* Retrieve control's minimum value (int type) */ |
| 121 | int pvr2_ctrl_get_min(struct pvr2_ctrl *cptr) |
| 122 | { |
| 123 | int ret = 0; |
| 124 | if (!cptr) return 0; |
| 125 | LOCK_TAKE(cptr->hdw->big_lock); do { |
Mike Isely | 89ebd63 | 2006-08-08 09:10:07 -0300 | [diff] [blame] | 126 | if (cptr->info->get_min_value) { |
| 127 | cptr->info->get_min_value(cptr,&ret); |
| 128 | } else if (cptr->info->type == pvr2_ctl_int) { |
Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 129 | ret = cptr->info->def.type_int.min_value; |
| 130 | } |
| 131 | } while(0); LOCK_GIVE(cptr->hdw->big_lock); |
| 132 | return ret; |
| 133 | } |
| 134 | |
| 135 | |
| 136 | /* Retrieve control's default value (any type) */ |
Mike Isely | 26dd1c57 | 2008-08-31 20:55:03 -0300 | [diff] [blame] | 137 | int pvr2_ctrl_get_def(struct pvr2_ctrl *cptr, int *valptr) |
Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 138 | { |
| 139 | int ret = 0; |
Mike Isely | 5b72d71 | 2009-04-01 01:49:57 -0300 | [diff] [blame] | 140 | if (!cptr) return -EINVAL; |
Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 141 | LOCK_TAKE(cptr->hdw->big_lock); do { |
Mike Isely | 5b72d71 | 2009-04-01 01:49:57 -0300 | [diff] [blame] | 142 | if (cptr->info->get_def_value) { |
| 143 | ret = cptr->info->get_def_value(cptr, valptr); |
| 144 | } else { |
| 145 | *valptr = cptr->info->default_value; |
Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 146 | } |
| 147 | } while(0); LOCK_GIVE(cptr->hdw->big_lock); |
| 148 | return ret; |
| 149 | } |
| 150 | |
| 151 | |
| 152 | /* Retrieve control's enumeration count (enum only) */ |
| 153 | int pvr2_ctrl_get_cnt(struct pvr2_ctrl *cptr) |
| 154 | { |
| 155 | int ret = 0; |
| 156 | if (!cptr) return 0; |
| 157 | LOCK_TAKE(cptr->hdw->big_lock); do { |
| 158 | if (cptr->info->type == pvr2_ctl_enum) { |
| 159 | ret = cptr->info->def.type_enum.count; |
| 160 | } |
| 161 | } while(0); LOCK_GIVE(cptr->hdw->big_lock); |
| 162 | return ret; |
| 163 | } |
| 164 | |
| 165 | |
| 166 | /* Retrieve control's valid mask bits (bit mask only) */ |
| 167 | int pvr2_ctrl_get_mask(struct pvr2_ctrl *cptr) |
| 168 | { |
| 169 | int ret = 0; |
| 170 | if (!cptr) return 0; |
| 171 | LOCK_TAKE(cptr->hdw->big_lock); do { |
| 172 | if (cptr->info->type == pvr2_ctl_bitmask) { |
| 173 | ret = cptr->info->def.type_bitmask.valid_bits; |
| 174 | } |
| 175 | } while(0); LOCK_GIVE(cptr->hdw->big_lock); |
| 176 | return ret; |
| 177 | } |
| 178 | |
| 179 | |
| 180 | /* Retrieve the control's name */ |
| 181 | const char *pvr2_ctrl_get_name(struct pvr2_ctrl *cptr) |
| 182 | { |
Mike Isely | a0fd1cb | 2006-06-30 11:35:28 -0300 | [diff] [blame] | 183 | if (!cptr) return NULL; |
Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 184 | return cptr->info->name; |
| 185 | } |
| 186 | |
| 187 | |
| 188 | /* Retrieve the control's desc */ |
| 189 | const char *pvr2_ctrl_get_desc(struct pvr2_ctrl *cptr) |
| 190 | { |
Mike Isely | a0fd1cb | 2006-06-30 11:35:28 -0300 | [diff] [blame] | 191 | if (!cptr) return NULL; |
Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 192 | return cptr->info->desc; |
| 193 | } |
| 194 | |
| 195 | |
| 196 | /* Retrieve a control enumeration or bit mask value */ |
| 197 | int pvr2_ctrl_get_valname(struct pvr2_ctrl *cptr,int val, |
| 198 | char *bptr,unsigned int bmax, |
| 199 | unsigned int *blen) |
| 200 | { |
| 201 | int ret = -EINVAL; |
| 202 | if (!cptr) return 0; |
| 203 | *blen = 0; |
| 204 | LOCK_TAKE(cptr->hdw->big_lock); do { |
| 205 | if (cptr->info->type == pvr2_ctl_enum) { |
| 206 | const char **names; |
| 207 | names = cptr->info->def.type_enum.value_names; |
Mike Isely | fdf256f | 2008-04-22 14:45:38 -0300 | [diff] [blame] | 208 | if (pvr2_ctrl_range_check(cptr,val) == 0) { |
Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 209 | if (names[val]) { |
| 210 | *blen = scnprintf( |
| 211 | bptr,bmax,"%s", |
| 212 | names[val]); |
| 213 | } else { |
| 214 | *blen = 0; |
| 215 | } |
| 216 | ret = 0; |
| 217 | } |
| 218 | } else if (cptr->info->type == pvr2_ctl_bitmask) { |
| 219 | const char **names; |
| 220 | unsigned int idx; |
| 221 | int msk; |
| 222 | names = cptr->info->def.type_bitmask.bit_names; |
| 223 | val &= cptr->info->def.type_bitmask.valid_bits; |
| 224 | for (idx = 0, msk = 1; val; idx++, msk <<= 1) { |
| 225 | if (val & msk) { |
| 226 | *blen = scnprintf(bptr,bmax,"%s", |
| 227 | names[idx]); |
| 228 | ret = 0; |
| 229 | break; |
| 230 | } |
| 231 | } |
| 232 | } |
| 233 | } while(0); LOCK_GIVE(cptr->hdw->big_lock); |
| 234 | return ret; |
| 235 | } |
| 236 | |
| 237 | |
Mike Isely | a761f43 | 2006-06-25 20:04:44 -0300 | [diff] [blame] | 238 | /* Return V4L ID for this control or zero if none */ |
| 239 | int pvr2_ctrl_get_v4lid(struct pvr2_ctrl *cptr) |
| 240 | { |
| 241 | if (!cptr) return 0; |
| 242 | return cptr->info->v4l_id; |
| 243 | } |
| 244 | |
| 245 | |
| 246 | unsigned int pvr2_ctrl_get_v4lflags(struct pvr2_ctrl *cptr) |
| 247 | { |
| 248 | unsigned int flags = 0; |
| 249 | |
| 250 | if (cptr->info->get_v4lflags) { |
| 251 | flags = cptr->info->get_v4lflags(cptr); |
| 252 | } |
| 253 | |
Mike Isely | 1d9f846 | 2006-06-25 20:04:58 -0300 | [diff] [blame] | 254 | if (cptr->info->set_value) { |
| 255 | flags &= ~V4L2_CTRL_FLAG_READ_ONLY; |
| 256 | } else { |
| 257 | flags |= V4L2_CTRL_FLAG_READ_ONLY; |
| 258 | } |
Mike Isely | a761f43 | 2006-06-25 20:04:44 -0300 | [diff] [blame] | 259 | |
| 260 | return flags; |
| 261 | } |
| 262 | |
| 263 | |
Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 264 | /* Return true if control is writable */ |
| 265 | int pvr2_ctrl_is_writable(struct pvr2_ctrl *cptr) |
| 266 | { |
| 267 | if (!cptr) return 0; |
Al Viro | 5fa1247 | 2008-03-29 03:07:38 +0000 | [diff] [blame] | 268 | return cptr->info->set_value != NULL; |
Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 269 | } |
| 270 | |
| 271 | |
| 272 | /* Return true if control has custom symbolic representation */ |
| 273 | int pvr2_ctrl_has_custom_symbols(struct pvr2_ctrl *cptr) |
| 274 | { |
| 275 | if (!cptr) return 0; |
| 276 | if (!cptr->info->val_to_sym) return 0; |
| 277 | if (!cptr->info->sym_to_val) return 0; |
| 278 | return !0; |
| 279 | } |
| 280 | |
| 281 | |
| 282 | /* Convert a given mask/val to a custom symbolic value */ |
| 283 | int pvr2_ctrl_custom_value_to_sym(struct pvr2_ctrl *cptr, |
| 284 | int mask,int val, |
| 285 | char *buf,unsigned int maxlen, |
| 286 | unsigned int *len) |
| 287 | { |
| 288 | if (!cptr) return -EINVAL; |
| 289 | if (!cptr->info->val_to_sym) return -EINVAL; |
| 290 | return cptr->info->val_to_sym(cptr,mask,val,buf,maxlen,len); |
| 291 | } |
| 292 | |
| 293 | |
| 294 | /* Convert a symbolic value to a mask/value pair */ |
| 295 | int pvr2_ctrl_custom_sym_to_value(struct pvr2_ctrl *cptr, |
| 296 | const char *buf,unsigned int len, |
| 297 | int *maskptr,int *valptr) |
| 298 | { |
| 299 | if (!cptr) return -EINVAL; |
| 300 | if (!cptr->info->sym_to_val) return -EINVAL; |
| 301 | return cptr->info->sym_to_val(cptr,buf,len,maskptr,valptr); |
| 302 | } |
| 303 | |
| 304 | |
| 305 | static unsigned int gen_bitmask_string(int msk,int val,int msk_only, |
| 306 | const char **names, |
| 307 | char *ptr,unsigned int len) |
| 308 | { |
| 309 | unsigned int idx; |
| 310 | long sm,um; |
| 311 | int spcFl; |
| 312 | unsigned int uc,cnt; |
| 313 | const char *idStr; |
| 314 | |
| 315 | spcFl = 0; |
| 316 | uc = 0; |
| 317 | um = 0; |
| 318 | for (idx = 0, sm = 1; msk; idx++, sm <<= 1) { |
| 319 | if (sm & msk) { |
| 320 | msk &= ~sm; |
| 321 | idStr = names[idx]; |
| 322 | if (idStr) { |
| 323 | cnt = scnprintf(ptr,len,"%s%s%s", |
| 324 | (spcFl ? " " : ""), |
| 325 | (msk_only ? "" : |
| 326 | ((val & sm) ? "+" : "-")), |
| 327 | idStr); |
| 328 | ptr += cnt; len -= cnt; uc += cnt; |
| 329 | spcFl = !0; |
| 330 | } else { |
| 331 | um |= sm; |
| 332 | } |
| 333 | } |
| 334 | } |
| 335 | if (um) { |
| 336 | if (msk_only) { |
| 337 | cnt = scnprintf(ptr,len,"%s0x%lx", |
| 338 | (spcFl ? " " : ""), |
| 339 | um); |
| 340 | ptr += cnt; len -= cnt; uc += cnt; |
| 341 | spcFl = !0; |
| 342 | } else if (um & val) { |
| 343 | cnt = scnprintf(ptr,len,"%s+0x%lx", |
| 344 | (spcFl ? " " : ""), |
| 345 | um & val); |
| 346 | ptr += cnt; len -= cnt; uc += cnt; |
| 347 | spcFl = !0; |
| 348 | } else if (um & ~val) { |
| 349 | cnt = scnprintf(ptr,len,"%s+0x%lx", |
| 350 | (spcFl ? " " : ""), |
| 351 | um & ~val); |
| 352 | ptr += cnt; len -= cnt; uc += cnt; |
| 353 | spcFl = !0; |
| 354 | } |
| 355 | } |
| 356 | return uc; |
| 357 | } |
| 358 | |
| 359 | |
Mike Isely | 3321396 | 2006-06-25 20:04:40 -0300 | [diff] [blame] | 360 | static const char *boolNames[] = { |
| 361 | "false", |
| 362 | "true", |
| 363 | "no", |
| 364 | "yes", |
| 365 | }; |
| 366 | |
| 367 | |
Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 368 | static int parse_token(const char *ptr,unsigned int len, |
| 369 | int *valptr, |
| 370 | const char **names,unsigned int namecnt) |
| 371 | { |
| 372 | char buf[33]; |
| 373 | unsigned int slen; |
| 374 | unsigned int idx; |
| 375 | int negfl; |
| 376 | char *p2; |
| 377 | *valptr = 0; |
| 378 | if (!names) namecnt = 0; |
| 379 | for (idx = 0; idx < namecnt; idx++) { |
| 380 | if (!names[idx]) continue; |
| 381 | slen = strlen(names[idx]); |
| 382 | if (slen != len) continue; |
| 383 | if (memcmp(names[idx],ptr,slen)) continue; |
| 384 | *valptr = idx; |
| 385 | return 0; |
| 386 | } |
| 387 | negfl = 0; |
| 388 | if ((*ptr == '-') || (*ptr == '+')) { |
| 389 | negfl = (*ptr == '-'); |
| 390 | ptr++; len--; |
| 391 | } |
| 392 | if (len >= sizeof(buf)) return -EINVAL; |
| 393 | memcpy(buf,ptr,len); |
| 394 | buf[len] = 0; |
| 395 | *valptr = simple_strtol(buf,&p2,0); |
| 396 | if (negfl) *valptr = -(*valptr); |
| 397 | if (*p2) return -EINVAL; |
Mike Isely | 3321396 | 2006-06-25 20:04:40 -0300 | [diff] [blame] | 398 | return 1; |
Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 399 | } |
| 400 | |
| 401 | |
| 402 | static int parse_mtoken(const char *ptr,unsigned int len, |
| 403 | int *valptr, |
| 404 | const char **names,int valid_bits) |
| 405 | { |
| 406 | char buf[33]; |
| 407 | unsigned int slen; |
| 408 | unsigned int idx; |
| 409 | char *p2; |
| 410 | int msk; |
| 411 | *valptr = 0; |
| 412 | for (idx = 0, msk = 1; valid_bits; idx++, msk <<= 1) { |
Roel Kluin | 4ed53a5 | 2007-10-28 22:15:33 -0300 | [diff] [blame] | 413 | if (!(msk & valid_bits)) continue; |
Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 414 | valid_bits &= ~msk; |
| 415 | if (!names[idx]) continue; |
| 416 | slen = strlen(names[idx]); |
| 417 | if (slen != len) continue; |
| 418 | if (memcmp(names[idx],ptr,slen)) continue; |
| 419 | *valptr = msk; |
| 420 | return 0; |
| 421 | } |
| 422 | if (len >= sizeof(buf)) return -EINVAL; |
| 423 | memcpy(buf,ptr,len); |
| 424 | buf[len] = 0; |
| 425 | *valptr = simple_strtol(buf,&p2,0); |
| 426 | if (*p2) return -EINVAL; |
| 427 | return 0; |
| 428 | } |
| 429 | |
| 430 | |
| 431 | static int parse_tlist(const char *ptr,unsigned int len, |
| 432 | int *maskptr,int *valptr, |
| 433 | const char **names,int valid_bits) |
| 434 | { |
| 435 | unsigned int cnt; |
| 436 | int mask,val,kv,mode,ret; |
| 437 | mask = 0; |
| 438 | val = 0; |
| 439 | ret = 0; |
| 440 | while (len) { |
| 441 | cnt = 0; |
| 442 | while ((cnt < len) && |
| 443 | ((ptr[cnt] <= 32) || |
| 444 | (ptr[cnt] >= 127))) cnt++; |
| 445 | ptr += cnt; |
| 446 | len -= cnt; |
| 447 | mode = 0; |
| 448 | if ((*ptr == '-') || (*ptr == '+')) { |
| 449 | mode = (*ptr == '-') ? -1 : 1; |
| 450 | ptr++; |
| 451 | len--; |
| 452 | } |
| 453 | cnt = 0; |
| 454 | while (cnt < len) { |
| 455 | if (ptr[cnt] <= 32) break; |
| 456 | if (ptr[cnt] >= 127) break; |
| 457 | cnt++; |
| 458 | } |
| 459 | if (!cnt) break; |
| 460 | if (parse_mtoken(ptr,cnt,&kv,names,valid_bits)) { |
| 461 | ret = -EINVAL; |
| 462 | break; |
| 463 | } |
| 464 | ptr += cnt; |
| 465 | len -= cnt; |
| 466 | switch (mode) { |
| 467 | case 0: |
| 468 | mask = valid_bits; |
| 469 | val |= kv; |
| 470 | break; |
| 471 | case -1: |
| 472 | mask |= kv; |
| 473 | val &= ~kv; |
| 474 | break; |
| 475 | case 1: |
| 476 | mask |= kv; |
| 477 | val |= kv; |
| 478 | break; |
| 479 | default: |
| 480 | break; |
| 481 | } |
| 482 | } |
| 483 | *maskptr = mask; |
| 484 | *valptr = val; |
| 485 | return ret; |
| 486 | } |
| 487 | |
| 488 | |
| 489 | /* Convert a symbolic value to a mask/value pair */ |
| 490 | int pvr2_ctrl_sym_to_value(struct pvr2_ctrl *cptr, |
| 491 | const char *ptr,unsigned int len, |
| 492 | int *maskptr,int *valptr) |
| 493 | { |
| 494 | int ret = -EINVAL; |
| 495 | unsigned int cnt; |
| 496 | |
| 497 | *maskptr = 0; |
| 498 | *valptr = 0; |
| 499 | |
| 500 | cnt = 0; |
| 501 | while ((cnt < len) && ((ptr[cnt] <= 32) || (ptr[cnt] >= 127))) cnt++; |
| 502 | len -= cnt; ptr += cnt; |
| 503 | cnt = 0; |
| 504 | while ((cnt < len) && ((ptr[len-(cnt+1)] <= 32) || |
| 505 | (ptr[len-(cnt+1)] >= 127))) cnt++; |
| 506 | len -= cnt; |
| 507 | |
| 508 | if (!len) return -EINVAL; |
| 509 | |
| 510 | LOCK_TAKE(cptr->hdw->big_lock); do { |
| 511 | if (cptr->info->type == pvr2_ctl_int) { |
Mike Isely | a0fd1cb | 2006-06-30 11:35:28 -0300 | [diff] [blame] | 512 | ret = parse_token(ptr,len,valptr,NULL,0); |
Pantelis Koukousoulas | 6fcb5b3 | 2006-12-27 23:06:54 -0300 | [diff] [blame] | 513 | if (ret >= 0) { |
Mike Isely | 5549f54 | 2006-12-27 23:28:54 -0300 | [diff] [blame] | 514 | ret = pvr2_ctrl_range_check(cptr,*valptr); |
Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 515 | } |
Dan Carpenter | d533796 | 2010-08-19 06:50:04 -0300 | [diff] [blame] | 516 | *maskptr = ~0; |
Mike Isely | 3321396 | 2006-06-25 20:04:40 -0300 | [diff] [blame] | 517 | } else if (cptr->info->type == pvr2_ctl_bool) { |
Mike Isely | 27c7b71 | 2007-01-20 00:39:17 -0300 | [diff] [blame] | 518 | ret = parse_token(ptr,len,valptr,boolNames, |
| 519 | ARRAY_SIZE(boolNames)); |
Mike Isely | 3321396 | 2006-06-25 20:04:40 -0300 | [diff] [blame] | 520 | if (ret == 1) { |
| 521 | *valptr = *valptr ? !0 : 0; |
| 522 | } else if (ret == 0) { |
| 523 | *valptr = (*valptr & 1) ? !0 : 0; |
| 524 | } |
Dan Carpenter | d533796 | 2010-08-19 06:50:04 -0300 | [diff] [blame] | 525 | *maskptr = 1; |
Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 526 | } else if (cptr->info->type == pvr2_ctl_enum) { |
| 527 | ret = parse_token( |
| 528 | ptr,len,valptr, |
| 529 | cptr->info->def.type_enum.value_names, |
| 530 | cptr->info->def.type_enum.count); |
Mike Isely | fdf256f | 2008-04-22 14:45:38 -0300 | [diff] [blame] | 531 | if (ret >= 0) { |
| 532 | ret = pvr2_ctrl_range_check(cptr,*valptr); |
Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 533 | } |
Dan Carpenter | d533796 | 2010-08-19 06:50:04 -0300 | [diff] [blame] | 534 | *maskptr = ~0; |
Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 535 | } else if (cptr->info->type == pvr2_ctl_bitmask) { |
| 536 | ret = parse_tlist( |
| 537 | ptr,len,maskptr,valptr, |
| 538 | cptr->info->def.type_bitmask.bit_names, |
| 539 | cptr->info->def.type_bitmask.valid_bits); |
| 540 | } |
| 541 | } while(0); LOCK_GIVE(cptr->hdw->big_lock); |
| 542 | return ret; |
| 543 | } |
| 544 | |
| 545 | |
| 546 | /* Convert a given mask/val to a symbolic value */ |
| 547 | int pvr2_ctrl_value_to_sym_internal(struct pvr2_ctrl *cptr, |
| 548 | int mask,int val, |
| 549 | char *buf,unsigned int maxlen, |
| 550 | unsigned int *len) |
| 551 | { |
| 552 | int ret = -EINVAL; |
| 553 | |
| 554 | *len = 0; |
| 555 | if (cptr->info->type == pvr2_ctl_int) { |
| 556 | *len = scnprintf(buf,maxlen,"%d",val); |
| 557 | ret = 0; |
Mike Isely | 3321396 | 2006-06-25 20:04:40 -0300 | [diff] [blame] | 558 | } else if (cptr->info->type == pvr2_ctl_bool) { |
| 559 | *len = scnprintf(buf,maxlen,"%s",val ? "true" : "false"); |
| 560 | ret = 0; |
Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 561 | } else if (cptr->info->type == pvr2_ctl_enum) { |
| 562 | const char **names; |
| 563 | names = cptr->info->def.type_enum.value_names; |
| 564 | if ((val >= 0) && |
| 565 | (val < cptr->info->def.type_enum.count)) { |
| 566 | if (names[val]) { |
| 567 | *len = scnprintf( |
| 568 | buf,maxlen,"%s", |
| 569 | names[val]); |
| 570 | } else { |
| 571 | *len = 0; |
| 572 | } |
| 573 | ret = 0; |
| 574 | } |
| 575 | } else if (cptr->info->type == pvr2_ctl_bitmask) { |
| 576 | *len = gen_bitmask_string( |
| 577 | val & mask & cptr->info->def.type_bitmask.valid_bits, |
| 578 | ~0,!0, |
| 579 | cptr->info->def.type_bitmask.bit_names, |
| 580 | buf,maxlen); |
| 581 | } |
| 582 | return ret; |
| 583 | } |
| 584 | |
| 585 | |
| 586 | /* Convert a given mask/val to a symbolic value */ |
| 587 | int pvr2_ctrl_value_to_sym(struct pvr2_ctrl *cptr, |
| 588 | int mask,int val, |
| 589 | char *buf,unsigned int maxlen, |
| 590 | unsigned int *len) |
| 591 | { |
| 592 | int ret; |
| 593 | LOCK_TAKE(cptr->hdw->big_lock); do { |
| 594 | ret = pvr2_ctrl_value_to_sym_internal(cptr,mask,val, |
| 595 | buf,maxlen,len); |
| 596 | } while(0); LOCK_GIVE(cptr->hdw->big_lock); |
| 597 | return ret; |
| 598 | } |
| 599 | |
| 600 | |
| 601 | /* |
| 602 | Stuff for Emacs to see, in order to encourage consistent editing style: |
| 603 | *** Local Variables: *** |
| 604 | *** mode: c *** |
| 605 | *** fill-column: 75 *** |
| 606 | *** tab-width: 8 *** |
| 607 | *** c-basic-offset: 8 *** |
| 608 | *** End: *** |
| 609 | */ |