Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1 | /* |
| 2 | * uvc_configfs.c |
| 3 | * |
| 4 | * Configfs support for the uvc function. |
| 5 | * |
| 6 | * Copyright (c) 2014 Samsung Electronics Co., Ltd. |
| 7 | * http://www.samsung.com |
| 8 | * |
| 9 | * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com> |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License version 2 as |
| 13 | * published by the Free Software Foundation. |
| 14 | */ |
| 15 | #include "u_uvc.h" |
| 16 | #include "uvc_configfs.h" |
| 17 | |
| 18 | #define UVCG_STREAMING_CONTROL_SIZE 1 |
| 19 | |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 20 | #define UVC_ATTR(prefix, cname, aname) \ |
| 21 | static struct configfs_attribute prefix##attr_##cname = { \ |
| 22 | .ca_name = __stringify(aname), \ |
Mian Yousaf Kaukab | 27681ab | 2015-11-28 18:35:44 +0100 | [diff] [blame] | 23 | .ca_mode = S_IRUGO | S_IWUGO, \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 24 | .ca_owner = THIS_MODULE, \ |
| 25 | .show = prefix##cname##_show, \ |
| 26 | .store = prefix##cname##_store, \ |
| 27 | } |
| 28 | |
| 29 | #define UVC_ATTR_RO(prefix, cname, aname) \ |
| 30 | static struct configfs_attribute prefix##attr_##cname = { \ |
| 31 | .ca_name = __stringify(aname), \ |
| 32 | .ca_mode = S_IRUGO, \ |
| 33 | .ca_owner = THIS_MODULE, \ |
| 34 | .show = prefix##cname##_show, \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 35 | } |
| 36 | |
| 37 | static inline struct f_uvc_opts *to_f_uvc_opts(struct config_item *item); |
| 38 | |
| 39 | /* control/header/<NAME> */ |
| 40 | DECLARE_UVC_HEADER_DESCRIPTOR(1); |
| 41 | |
| 42 | struct uvcg_control_header { |
| 43 | struct config_item item; |
| 44 | struct UVC_HEADER_DESCRIPTOR(1) desc; |
| 45 | unsigned linked; |
| 46 | }; |
| 47 | |
kbuild test robot | f093a2d | 2015-01-13 16:55:38 +0800 | [diff] [blame] | 48 | static struct uvcg_control_header *to_uvcg_control_header(struct config_item *item) |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 49 | { |
| 50 | return container_of(item, struct uvcg_control_header, item); |
| 51 | } |
| 52 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 53 | #define UVCG_CTRL_HDR_ATTR(cname, aname, conv, str2u, uxx, vnoc, limit) \ |
| 54 | static ssize_t uvcg_control_header_##cname##_show( \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 55 | struct config_item *item, char *page) \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 56 | { \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 57 | struct uvcg_control_header *ch = to_uvcg_control_header(item); \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 58 | struct f_uvc_opts *opts; \ |
| 59 | struct config_item *opts_item; \ |
| 60 | struct mutex *su_mutex = &ch->item.ci_group->cg_subsys->su_mutex;\ |
| 61 | int result; \ |
| 62 | \ |
| 63 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ \ |
| 64 | \ |
| 65 | opts_item = ch->item.ci_parent->ci_parent->ci_parent; \ |
| 66 | opts = to_f_uvc_opts(opts_item); \ |
| 67 | \ |
| 68 | mutex_lock(&opts->lock); \ |
| 69 | result = sprintf(page, "%d\n", conv(ch->desc.aname)); \ |
| 70 | mutex_unlock(&opts->lock); \ |
| 71 | \ |
| 72 | mutex_unlock(su_mutex); \ |
| 73 | return result; \ |
| 74 | } \ |
| 75 | \ |
| 76 | static ssize_t \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 77 | uvcg_control_header_##cname##_store(struct config_item *item, \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 78 | const char *page, size_t len) \ |
| 79 | { \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 80 | struct uvcg_control_header *ch = to_uvcg_control_header(item); \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 81 | struct f_uvc_opts *opts; \ |
| 82 | struct config_item *opts_item; \ |
| 83 | struct mutex *su_mutex = &ch->item.ci_group->cg_subsys->su_mutex;\ |
| 84 | int ret; \ |
| 85 | uxx num; \ |
| 86 | \ |
| 87 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ \ |
| 88 | \ |
| 89 | opts_item = ch->item.ci_parent->ci_parent->ci_parent; \ |
| 90 | opts = to_f_uvc_opts(opts_item); \ |
| 91 | \ |
| 92 | mutex_lock(&opts->lock); \ |
| 93 | if (ch->linked || opts->refcnt) { \ |
| 94 | ret = -EBUSY; \ |
| 95 | goto end; \ |
| 96 | } \ |
| 97 | \ |
| 98 | ret = str2u(page, 0, &num); \ |
| 99 | if (ret) \ |
| 100 | goto end; \ |
| 101 | \ |
| 102 | if (num > limit) { \ |
| 103 | ret = -EINVAL; \ |
| 104 | goto end; \ |
| 105 | } \ |
| 106 | ch->desc.aname = vnoc(num); \ |
| 107 | ret = len; \ |
| 108 | end: \ |
| 109 | mutex_unlock(&opts->lock); \ |
| 110 | mutex_unlock(su_mutex); \ |
| 111 | return ret; \ |
| 112 | } \ |
| 113 | \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 114 | UVC_ATTR(uvcg_control_header_, cname, aname) |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 115 | |
| 116 | UVCG_CTRL_HDR_ATTR(bcd_uvc, bcdUVC, le16_to_cpu, kstrtou16, u16, cpu_to_le16, |
| 117 | 0xffff); |
| 118 | |
| 119 | UVCG_CTRL_HDR_ATTR(dw_clock_frequency, dwClockFrequency, le32_to_cpu, kstrtou32, |
| 120 | u32, cpu_to_le32, 0x7fffffff); |
| 121 | |
| 122 | #undef UVCG_CTRL_HDR_ATTR |
| 123 | |
| 124 | static struct configfs_attribute *uvcg_control_header_attrs[] = { |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 125 | &uvcg_control_header_attr_bcd_uvc, |
| 126 | &uvcg_control_header_attr_dw_clock_frequency, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 127 | NULL, |
| 128 | }; |
| 129 | |
kbuild test robot | f093a2d | 2015-01-13 16:55:38 +0800 | [diff] [blame] | 130 | static struct config_item_type uvcg_control_header_type = { |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 131 | .ct_attrs = uvcg_control_header_attrs, |
| 132 | .ct_owner = THIS_MODULE, |
| 133 | }; |
| 134 | |
| 135 | static struct config_item *uvcg_control_header_make(struct config_group *group, |
| 136 | const char *name) |
| 137 | { |
| 138 | struct uvcg_control_header *h; |
| 139 | |
| 140 | h = kzalloc(sizeof(*h), GFP_KERNEL); |
| 141 | if (!h) |
Dan Carpenter | df90f83 | 2015-01-14 23:59:48 +0300 | [diff] [blame] | 142 | return ERR_PTR(-ENOMEM); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 143 | |
| 144 | h->desc.bLength = UVC_DT_HEADER_SIZE(1); |
| 145 | h->desc.bDescriptorType = USB_DT_CS_INTERFACE; |
| 146 | h->desc.bDescriptorSubType = UVC_VC_HEADER; |
| 147 | h->desc.bcdUVC = cpu_to_le16(0x0100); |
| 148 | h->desc.dwClockFrequency = cpu_to_le32(48000000); |
| 149 | |
| 150 | config_item_init_type_name(&h->item, name, &uvcg_control_header_type); |
| 151 | |
| 152 | return &h->item; |
| 153 | } |
| 154 | |
kbuild test robot | f093a2d | 2015-01-13 16:55:38 +0800 | [diff] [blame] | 155 | static void uvcg_control_header_drop(struct config_group *group, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 156 | struct config_item *item) |
| 157 | { |
| 158 | struct uvcg_control_header *h = to_uvcg_control_header(item); |
| 159 | |
| 160 | kfree(h); |
| 161 | } |
| 162 | |
| 163 | /* control/header */ |
| 164 | static struct uvcg_control_header_grp { |
| 165 | struct config_group group; |
| 166 | } uvcg_control_header_grp; |
| 167 | |
| 168 | static struct configfs_group_operations uvcg_control_header_grp_ops = { |
| 169 | .make_item = uvcg_control_header_make, |
| 170 | .drop_item = uvcg_control_header_drop, |
| 171 | }; |
| 172 | |
| 173 | static struct config_item_type uvcg_control_header_grp_type = { |
| 174 | .ct_group_ops = &uvcg_control_header_grp_ops, |
| 175 | .ct_owner = THIS_MODULE, |
| 176 | }; |
| 177 | |
| 178 | /* control/processing/default */ |
| 179 | static struct uvcg_default_processing { |
| 180 | struct config_group group; |
| 181 | } uvcg_default_processing; |
| 182 | |
| 183 | static inline struct uvcg_default_processing |
| 184 | *to_uvcg_default_processing(struct config_item *item) |
| 185 | { |
| 186 | return container_of(to_config_group(item), |
| 187 | struct uvcg_default_processing, group); |
| 188 | } |
| 189 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 190 | #define UVCG_DEFAULT_PROCESSING_ATTR(cname, aname, conv) \ |
| 191 | static ssize_t uvcg_default_processing_##cname##_show( \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 192 | struct config_item *item, char *page) \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 193 | { \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 194 | struct uvcg_default_processing *dp = to_uvcg_default_processing(item); \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 195 | struct f_uvc_opts *opts; \ |
| 196 | struct config_item *opts_item; \ |
| 197 | struct mutex *su_mutex = &dp->group.cg_subsys->su_mutex; \ |
| 198 | struct uvc_processing_unit_descriptor *pd; \ |
| 199 | int result; \ |
| 200 | \ |
| 201 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ \ |
| 202 | \ |
| 203 | opts_item = dp->group.cg_item.ci_parent->ci_parent->ci_parent; \ |
| 204 | opts = to_f_uvc_opts(opts_item); \ |
| 205 | pd = &opts->uvc_processing; \ |
| 206 | \ |
| 207 | mutex_lock(&opts->lock); \ |
| 208 | result = sprintf(page, "%d\n", conv(pd->aname)); \ |
| 209 | mutex_unlock(&opts->lock); \ |
| 210 | \ |
| 211 | mutex_unlock(su_mutex); \ |
| 212 | return result; \ |
| 213 | } \ |
| 214 | \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 215 | UVC_ATTR_RO(uvcg_default_processing_, cname, aname) |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 216 | |
| 217 | #define identity_conv(x) (x) |
| 218 | |
| 219 | UVCG_DEFAULT_PROCESSING_ATTR(b_unit_id, bUnitID, identity_conv); |
| 220 | UVCG_DEFAULT_PROCESSING_ATTR(b_source_id, bSourceID, identity_conv); |
| 221 | UVCG_DEFAULT_PROCESSING_ATTR(w_max_multiplier, wMaxMultiplier, le16_to_cpu); |
| 222 | UVCG_DEFAULT_PROCESSING_ATTR(i_processing, iProcessing, identity_conv); |
| 223 | |
| 224 | #undef identity_conv |
| 225 | |
| 226 | #undef UVCG_DEFAULT_PROCESSING_ATTR |
| 227 | |
| 228 | static ssize_t uvcg_default_processing_bm_controls_show( |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 229 | struct config_item *item, char *page) |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 230 | { |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 231 | struct uvcg_default_processing *dp = to_uvcg_default_processing(item); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 232 | struct f_uvc_opts *opts; |
| 233 | struct config_item *opts_item; |
| 234 | struct mutex *su_mutex = &dp->group.cg_subsys->su_mutex; |
| 235 | struct uvc_processing_unit_descriptor *pd; |
| 236 | int result, i; |
| 237 | char *pg = page; |
| 238 | |
| 239 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ |
| 240 | |
| 241 | opts_item = dp->group.cg_item.ci_parent->ci_parent->ci_parent; |
| 242 | opts = to_f_uvc_opts(opts_item); |
| 243 | pd = &opts->uvc_processing; |
| 244 | |
| 245 | mutex_lock(&opts->lock); |
| 246 | for (result = 0, i = 0; i < pd->bControlSize; ++i) { |
| 247 | result += sprintf(pg, "%d\n", pd->bmControls[i]); |
| 248 | pg = page + result; |
| 249 | } |
| 250 | mutex_unlock(&opts->lock); |
| 251 | |
| 252 | mutex_unlock(su_mutex); |
| 253 | |
| 254 | return result; |
| 255 | } |
| 256 | |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 257 | UVC_ATTR_RO(uvcg_default_processing_, bm_controls, bmControls); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 258 | |
| 259 | static struct configfs_attribute *uvcg_default_processing_attrs[] = { |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 260 | &uvcg_default_processing_attr_b_unit_id, |
| 261 | &uvcg_default_processing_attr_b_source_id, |
| 262 | &uvcg_default_processing_attr_w_max_multiplier, |
| 263 | &uvcg_default_processing_attr_bm_controls, |
| 264 | &uvcg_default_processing_attr_i_processing, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 265 | NULL, |
| 266 | }; |
| 267 | |
| 268 | static struct config_item_type uvcg_default_processing_type = { |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 269 | .ct_attrs = uvcg_default_processing_attrs, |
| 270 | .ct_owner = THIS_MODULE, |
| 271 | }; |
| 272 | |
| 273 | /* struct uvcg_processing {}; */ |
| 274 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 275 | /* control/processing */ |
| 276 | static struct uvcg_processing_grp { |
| 277 | struct config_group group; |
| 278 | } uvcg_processing_grp; |
| 279 | |
| 280 | static struct config_item_type uvcg_processing_grp_type = { |
| 281 | .ct_owner = THIS_MODULE, |
| 282 | }; |
| 283 | |
| 284 | /* control/terminal/camera/default */ |
| 285 | static struct uvcg_default_camera { |
| 286 | struct config_group group; |
| 287 | } uvcg_default_camera; |
| 288 | |
| 289 | static inline struct uvcg_default_camera |
| 290 | *to_uvcg_default_camera(struct config_item *item) |
| 291 | { |
| 292 | return container_of(to_config_group(item), |
| 293 | struct uvcg_default_camera, group); |
| 294 | } |
| 295 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 296 | #define UVCG_DEFAULT_CAMERA_ATTR(cname, aname, conv) \ |
| 297 | static ssize_t uvcg_default_camera_##cname##_show( \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 298 | struct config_item *item, char *page) \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 299 | { \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 300 | struct uvcg_default_camera *dc = to_uvcg_default_camera(item); \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 301 | struct f_uvc_opts *opts; \ |
| 302 | struct config_item *opts_item; \ |
| 303 | struct mutex *su_mutex = &dc->group.cg_subsys->su_mutex; \ |
| 304 | struct uvc_camera_terminal_descriptor *cd; \ |
| 305 | int result; \ |
| 306 | \ |
| 307 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ \ |
| 308 | \ |
| 309 | opts_item = dc->group.cg_item.ci_parent->ci_parent->ci_parent-> \ |
| 310 | ci_parent; \ |
| 311 | opts = to_f_uvc_opts(opts_item); \ |
| 312 | cd = &opts->uvc_camera_terminal; \ |
| 313 | \ |
| 314 | mutex_lock(&opts->lock); \ |
| 315 | result = sprintf(page, "%d\n", conv(cd->aname)); \ |
| 316 | mutex_unlock(&opts->lock); \ |
| 317 | \ |
| 318 | mutex_unlock(su_mutex); \ |
| 319 | \ |
| 320 | return result; \ |
| 321 | } \ |
| 322 | \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 323 | UVC_ATTR_RO(uvcg_default_camera_, cname, aname) |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 324 | |
| 325 | #define identity_conv(x) (x) |
| 326 | |
| 327 | UVCG_DEFAULT_CAMERA_ATTR(b_terminal_id, bTerminalID, identity_conv); |
| 328 | UVCG_DEFAULT_CAMERA_ATTR(w_terminal_type, wTerminalType, le16_to_cpu); |
| 329 | UVCG_DEFAULT_CAMERA_ATTR(b_assoc_terminal, bAssocTerminal, identity_conv); |
| 330 | UVCG_DEFAULT_CAMERA_ATTR(i_terminal, iTerminal, identity_conv); |
| 331 | UVCG_DEFAULT_CAMERA_ATTR(w_objective_focal_length_min, wObjectiveFocalLengthMin, |
| 332 | le16_to_cpu); |
| 333 | UVCG_DEFAULT_CAMERA_ATTR(w_objective_focal_length_max, wObjectiveFocalLengthMax, |
| 334 | le16_to_cpu); |
| 335 | UVCG_DEFAULT_CAMERA_ATTR(w_ocular_focal_length, wOcularFocalLength, |
| 336 | le16_to_cpu); |
| 337 | |
| 338 | #undef identity_conv |
| 339 | |
| 340 | #undef UVCG_DEFAULT_CAMERA_ATTR |
| 341 | |
| 342 | static ssize_t uvcg_default_camera_bm_controls_show( |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 343 | struct config_item *item, char *page) |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 344 | { |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 345 | struct uvcg_default_camera *dc = to_uvcg_default_camera(item); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 346 | struct f_uvc_opts *opts; |
| 347 | struct config_item *opts_item; |
| 348 | struct mutex *su_mutex = &dc->group.cg_subsys->su_mutex; |
| 349 | struct uvc_camera_terminal_descriptor *cd; |
| 350 | int result, i; |
| 351 | char *pg = page; |
| 352 | |
| 353 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ |
| 354 | |
| 355 | opts_item = dc->group.cg_item.ci_parent->ci_parent->ci_parent-> |
| 356 | ci_parent; |
| 357 | opts = to_f_uvc_opts(opts_item); |
| 358 | cd = &opts->uvc_camera_terminal; |
| 359 | |
| 360 | mutex_lock(&opts->lock); |
| 361 | for (result = 0, i = 0; i < cd->bControlSize; ++i) { |
| 362 | result += sprintf(pg, "%d\n", cd->bmControls[i]); |
| 363 | pg = page + result; |
| 364 | } |
| 365 | mutex_unlock(&opts->lock); |
| 366 | |
| 367 | mutex_unlock(su_mutex); |
| 368 | return result; |
| 369 | } |
| 370 | |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 371 | UVC_ATTR_RO(uvcg_default_camera_, bm_controls, bmControls); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 372 | |
| 373 | static struct configfs_attribute *uvcg_default_camera_attrs[] = { |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 374 | &uvcg_default_camera_attr_b_terminal_id, |
| 375 | &uvcg_default_camera_attr_w_terminal_type, |
| 376 | &uvcg_default_camera_attr_b_assoc_terminal, |
| 377 | &uvcg_default_camera_attr_i_terminal, |
| 378 | &uvcg_default_camera_attr_w_objective_focal_length_min, |
| 379 | &uvcg_default_camera_attr_w_objective_focal_length_max, |
| 380 | &uvcg_default_camera_attr_w_ocular_focal_length, |
| 381 | &uvcg_default_camera_attr_bm_controls, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 382 | NULL, |
| 383 | }; |
| 384 | |
| 385 | static struct config_item_type uvcg_default_camera_type = { |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 386 | .ct_attrs = uvcg_default_camera_attrs, |
| 387 | .ct_owner = THIS_MODULE, |
| 388 | }; |
| 389 | |
| 390 | /* struct uvcg_camera {}; */ |
| 391 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 392 | /* control/terminal/camera */ |
| 393 | static struct uvcg_camera_grp { |
| 394 | struct config_group group; |
| 395 | } uvcg_camera_grp; |
| 396 | |
| 397 | static struct config_item_type uvcg_camera_grp_type = { |
| 398 | .ct_owner = THIS_MODULE, |
| 399 | }; |
| 400 | |
| 401 | /* control/terminal/output/default */ |
| 402 | static struct uvcg_default_output { |
| 403 | struct config_group group; |
| 404 | } uvcg_default_output; |
| 405 | |
| 406 | static inline struct uvcg_default_output |
| 407 | *to_uvcg_default_output(struct config_item *item) |
| 408 | { |
| 409 | return container_of(to_config_group(item), |
| 410 | struct uvcg_default_output, group); |
| 411 | } |
| 412 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 413 | #define UVCG_DEFAULT_OUTPUT_ATTR(cname, aname, conv) \ |
| 414 | static ssize_t uvcg_default_output_##cname##_show( \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 415 | struct config_item *item, char *page) \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 416 | { \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 417 | struct uvcg_default_output *dout = to_uvcg_default_output(item); \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 418 | struct f_uvc_opts *opts; \ |
| 419 | struct config_item *opts_item; \ |
| 420 | struct mutex *su_mutex = &dout->group.cg_subsys->su_mutex; \ |
| 421 | struct uvc_output_terminal_descriptor *cd; \ |
| 422 | int result; \ |
| 423 | \ |
| 424 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ \ |
| 425 | \ |
| 426 | opts_item = dout->group.cg_item.ci_parent->ci_parent-> \ |
| 427 | ci_parent->ci_parent; \ |
| 428 | opts = to_f_uvc_opts(opts_item); \ |
| 429 | cd = &opts->uvc_output_terminal; \ |
| 430 | \ |
| 431 | mutex_lock(&opts->lock); \ |
| 432 | result = sprintf(page, "%d\n", conv(cd->aname)); \ |
| 433 | mutex_unlock(&opts->lock); \ |
| 434 | \ |
| 435 | mutex_unlock(su_mutex); \ |
| 436 | \ |
| 437 | return result; \ |
| 438 | } \ |
| 439 | \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 440 | UVC_ATTR_RO(uvcg_default_output_, cname, aname) |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 441 | |
| 442 | #define identity_conv(x) (x) |
| 443 | |
| 444 | UVCG_DEFAULT_OUTPUT_ATTR(b_terminal_id, bTerminalID, identity_conv); |
| 445 | UVCG_DEFAULT_OUTPUT_ATTR(w_terminal_type, wTerminalType, le16_to_cpu); |
| 446 | UVCG_DEFAULT_OUTPUT_ATTR(b_assoc_terminal, bAssocTerminal, identity_conv); |
| 447 | UVCG_DEFAULT_OUTPUT_ATTR(b_source_id, bSourceID, identity_conv); |
| 448 | UVCG_DEFAULT_OUTPUT_ATTR(i_terminal, iTerminal, identity_conv); |
| 449 | |
| 450 | #undef identity_conv |
| 451 | |
| 452 | #undef UVCG_DEFAULT_OUTPUT_ATTR |
| 453 | |
| 454 | static struct configfs_attribute *uvcg_default_output_attrs[] = { |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 455 | &uvcg_default_output_attr_b_terminal_id, |
| 456 | &uvcg_default_output_attr_w_terminal_type, |
| 457 | &uvcg_default_output_attr_b_assoc_terminal, |
| 458 | &uvcg_default_output_attr_b_source_id, |
| 459 | &uvcg_default_output_attr_i_terminal, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 460 | NULL, |
| 461 | }; |
| 462 | |
| 463 | static struct config_item_type uvcg_default_output_type = { |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 464 | .ct_attrs = uvcg_default_output_attrs, |
| 465 | .ct_owner = THIS_MODULE, |
| 466 | }; |
| 467 | |
| 468 | /* struct uvcg_output {}; */ |
| 469 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 470 | /* control/terminal/output */ |
| 471 | static struct uvcg_output_grp { |
| 472 | struct config_group group; |
| 473 | } uvcg_output_grp; |
| 474 | |
| 475 | static struct config_item_type uvcg_output_grp_type = { |
| 476 | .ct_owner = THIS_MODULE, |
| 477 | }; |
| 478 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 479 | /* control/terminal */ |
| 480 | static struct uvcg_terminal_grp { |
| 481 | struct config_group group; |
| 482 | } uvcg_terminal_grp; |
| 483 | |
| 484 | static struct config_item_type uvcg_terminal_grp_type = { |
| 485 | .ct_owner = THIS_MODULE, |
| 486 | }; |
| 487 | |
| 488 | /* control/class/{fs} */ |
| 489 | static struct uvcg_control_class { |
| 490 | struct config_group group; |
| 491 | } uvcg_control_class_fs, uvcg_control_class_ss; |
| 492 | |
| 493 | |
| 494 | static inline struct uvc_descriptor_header |
| 495 | **uvcg_get_ctl_class_arr(struct config_item *i, struct f_uvc_opts *o) |
| 496 | { |
| 497 | struct uvcg_control_class *cl = container_of(to_config_group(i), |
| 498 | struct uvcg_control_class, group); |
| 499 | |
| 500 | if (cl == &uvcg_control_class_fs) |
| 501 | return o->uvc_fs_control_cls; |
| 502 | |
| 503 | if (cl == &uvcg_control_class_ss) |
| 504 | return o->uvc_ss_control_cls; |
| 505 | |
| 506 | return NULL; |
| 507 | } |
| 508 | |
| 509 | static int uvcg_control_class_allow_link(struct config_item *src, |
| 510 | struct config_item *target) |
| 511 | { |
| 512 | struct config_item *control, *header; |
| 513 | struct f_uvc_opts *opts; |
| 514 | struct mutex *su_mutex = &src->ci_group->cg_subsys->su_mutex; |
| 515 | struct uvc_descriptor_header **class_array; |
| 516 | struct uvcg_control_header *target_hdr; |
| 517 | int ret = -EINVAL; |
| 518 | |
| 519 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ |
| 520 | |
| 521 | control = src->ci_parent->ci_parent; |
| 522 | header = config_group_find_item(to_config_group(control), "header"); |
| 523 | if (!header || target->ci_parent != header) |
| 524 | goto out; |
| 525 | |
| 526 | opts = to_f_uvc_opts(control->ci_parent); |
| 527 | |
| 528 | mutex_lock(&opts->lock); |
| 529 | |
| 530 | class_array = uvcg_get_ctl_class_arr(src, opts); |
| 531 | if (!class_array) |
| 532 | goto unlock; |
| 533 | if (opts->refcnt || class_array[0]) { |
| 534 | ret = -EBUSY; |
| 535 | goto unlock; |
| 536 | } |
| 537 | |
| 538 | target_hdr = to_uvcg_control_header(target); |
| 539 | ++target_hdr->linked; |
| 540 | class_array[0] = (struct uvc_descriptor_header *)&target_hdr->desc; |
| 541 | ret = 0; |
| 542 | |
| 543 | unlock: |
| 544 | mutex_unlock(&opts->lock); |
| 545 | out: |
| 546 | mutex_unlock(su_mutex); |
| 547 | return ret; |
| 548 | } |
| 549 | |
| 550 | static int uvcg_control_class_drop_link(struct config_item *src, |
| 551 | struct config_item *target) |
| 552 | { |
| 553 | struct config_item *control, *header; |
| 554 | struct f_uvc_opts *opts; |
| 555 | struct mutex *su_mutex = &src->ci_group->cg_subsys->su_mutex; |
| 556 | struct uvc_descriptor_header **class_array; |
| 557 | struct uvcg_control_header *target_hdr; |
| 558 | int ret = -EINVAL; |
| 559 | |
| 560 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ |
| 561 | |
| 562 | control = src->ci_parent->ci_parent; |
| 563 | header = config_group_find_item(to_config_group(control), "header"); |
| 564 | if (!header || target->ci_parent != header) |
| 565 | goto out; |
| 566 | |
| 567 | opts = to_f_uvc_opts(control->ci_parent); |
| 568 | |
| 569 | mutex_lock(&opts->lock); |
| 570 | |
| 571 | class_array = uvcg_get_ctl_class_arr(src, opts); |
| 572 | if (!class_array) |
| 573 | goto unlock; |
| 574 | if (opts->refcnt) { |
| 575 | ret = -EBUSY; |
| 576 | goto unlock; |
| 577 | } |
| 578 | |
| 579 | target_hdr = to_uvcg_control_header(target); |
| 580 | --target_hdr->linked; |
| 581 | class_array[0] = NULL; |
| 582 | ret = 0; |
| 583 | |
| 584 | unlock: |
| 585 | mutex_unlock(&opts->lock); |
| 586 | out: |
| 587 | mutex_unlock(su_mutex); |
| 588 | return ret; |
| 589 | } |
| 590 | |
| 591 | static struct configfs_item_operations uvcg_control_class_item_ops = { |
| 592 | .allow_link = uvcg_control_class_allow_link, |
| 593 | .drop_link = uvcg_control_class_drop_link, |
| 594 | }; |
| 595 | |
| 596 | static struct config_item_type uvcg_control_class_type = { |
| 597 | .ct_item_ops = &uvcg_control_class_item_ops, |
| 598 | .ct_owner = THIS_MODULE, |
| 599 | }; |
| 600 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 601 | /* control/class */ |
| 602 | static struct uvcg_control_class_grp { |
| 603 | struct config_group group; |
| 604 | } uvcg_control_class_grp; |
| 605 | |
| 606 | static struct config_item_type uvcg_control_class_grp_type = { |
| 607 | .ct_owner = THIS_MODULE, |
| 608 | }; |
| 609 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 610 | /* control */ |
| 611 | static struct uvcg_control_grp { |
| 612 | struct config_group group; |
| 613 | } uvcg_control_grp; |
| 614 | |
| 615 | static struct config_item_type uvcg_control_grp_type = { |
| 616 | .ct_owner = THIS_MODULE, |
| 617 | }; |
| 618 | |
| 619 | /* streaming/uncompressed */ |
| 620 | static struct uvcg_uncompressed_grp { |
| 621 | struct config_group group; |
| 622 | } uvcg_uncompressed_grp; |
| 623 | |
| 624 | /* streaming/mjpeg */ |
| 625 | static struct uvcg_mjpeg_grp { |
| 626 | struct config_group group; |
| 627 | } uvcg_mjpeg_grp; |
| 628 | |
| 629 | static struct config_item *fmt_parent[] = { |
| 630 | &uvcg_uncompressed_grp.group.cg_item, |
| 631 | &uvcg_mjpeg_grp.group.cg_item, |
| 632 | }; |
| 633 | |
| 634 | enum uvcg_format_type { |
| 635 | UVCG_UNCOMPRESSED = 0, |
| 636 | UVCG_MJPEG, |
| 637 | }; |
| 638 | |
| 639 | struct uvcg_format { |
| 640 | struct config_group group; |
| 641 | enum uvcg_format_type type; |
| 642 | unsigned linked; |
| 643 | unsigned num_frames; |
| 644 | __u8 bmaControls[UVCG_STREAMING_CONTROL_SIZE]; |
| 645 | }; |
| 646 | |
kbuild test robot | f093a2d | 2015-01-13 16:55:38 +0800 | [diff] [blame] | 647 | static struct uvcg_format *to_uvcg_format(struct config_item *item) |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 648 | { |
| 649 | return container_of(to_config_group(item), struct uvcg_format, group); |
| 650 | } |
| 651 | |
| 652 | static ssize_t uvcg_format_bma_controls_show(struct uvcg_format *f, char *page) |
| 653 | { |
| 654 | struct f_uvc_opts *opts; |
| 655 | struct config_item *opts_item; |
| 656 | struct mutex *su_mutex = &f->group.cg_subsys->su_mutex; |
| 657 | int result, i; |
| 658 | char *pg = page; |
| 659 | |
| 660 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ |
| 661 | |
| 662 | opts_item = f->group.cg_item.ci_parent->ci_parent->ci_parent; |
| 663 | opts = to_f_uvc_opts(opts_item); |
| 664 | |
| 665 | mutex_lock(&opts->lock); |
| 666 | result = sprintf(pg, "0x"); |
| 667 | pg += result; |
| 668 | for (i = 0; i < UVCG_STREAMING_CONTROL_SIZE; ++i) { |
| 669 | result += sprintf(pg, "%x\n", f->bmaControls[i]); |
| 670 | pg = page + result; |
| 671 | } |
| 672 | mutex_unlock(&opts->lock); |
| 673 | |
| 674 | mutex_unlock(su_mutex); |
| 675 | return result; |
| 676 | } |
| 677 | |
| 678 | static ssize_t uvcg_format_bma_controls_store(struct uvcg_format *ch, |
| 679 | const char *page, size_t len) |
| 680 | { |
| 681 | struct f_uvc_opts *opts; |
| 682 | struct config_item *opts_item; |
| 683 | struct mutex *su_mutex = &ch->group.cg_subsys->su_mutex; |
| 684 | int ret = -EINVAL; |
| 685 | |
| 686 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ |
| 687 | |
| 688 | opts_item = ch->group.cg_item.ci_parent->ci_parent->ci_parent; |
| 689 | opts = to_f_uvc_opts(opts_item); |
| 690 | |
| 691 | mutex_lock(&opts->lock); |
| 692 | if (ch->linked || opts->refcnt) { |
| 693 | ret = -EBUSY; |
| 694 | goto end; |
| 695 | } |
| 696 | |
| 697 | if (len < 4 || *page != '0' || |
| 698 | (*(page + 1) != 'x' && *(page + 1) != 'X')) |
| 699 | goto end; |
| 700 | ret = hex2bin(ch->bmaControls, page + 2, 1); |
| 701 | if (ret < 0) |
| 702 | goto end; |
| 703 | ret = len; |
| 704 | end: |
| 705 | mutex_unlock(&opts->lock); |
| 706 | mutex_unlock(su_mutex); |
| 707 | return ret; |
| 708 | } |
| 709 | |
| 710 | struct uvcg_format_ptr { |
| 711 | struct uvcg_format *fmt; |
| 712 | struct list_head entry; |
| 713 | }; |
| 714 | |
| 715 | /* streaming/header/<NAME> */ |
| 716 | struct uvcg_streaming_header { |
| 717 | struct config_item item; |
| 718 | struct uvc_input_header_descriptor desc; |
| 719 | unsigned linked; |
| 720 | struct list_head formats; |
| 721 | unsigned num_fmt; |
| 722 | }; |
| 723 | |
kbuild test robot | f093a2d | 2015-01-13 16:55:38 +0800 | [diff] [blame] | 724 | static struct uvcg_streaming_header *to_uvcg_streaming_header(struct config_item *item) |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 725 | { |
| 726 | return container_of(item, struct uvcg_streaming_header, item); |
| 727 | } |
| 728 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 729 | static int uvcg_streaming_header_allow_link(struct config_item *src, |
| 730 | struct config_item *target) |
| 731 | { |
| 732 | struct mutex *su_mutex = &src->ci_group->cg_subsys->su_mutex; |
| 733 | struct config_item *opts_item; |
| 734 | struct f_uvc_opts *opts; |
| 735 | struct uvcg_streaming_header *src_hdr; |
| 736 | struct uvcg_format *target_fmt = NULL; |
| 737 | struct uvcg_format_ptr *format_ptr; |
| 738 | int i, ret = -EINVAL; |
| 739 | |
| 740 | src_hdr = to_uvcg_streaming_header(src); |
| 741 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ |
| 742 | |
| 743 | opts_item = src->ci_parent->ci_parent->ci_parent; |
| 744 | opts = to_f_uvc_opts(opts_item); |
| 745 | |
| 746 | mutex_lock(&opts->lock); |
| 747 | |
| 748 | if (src_hdr->linked) { |
| 749 | ret = -EBUSY; |
| 750 | goto out; |
| 751 | } |
| 752 | |
| 753 | for (i = 0; i < ARRAY_SIZE(fmt_parent); ++i) |
| 754 | if (target->ci_parent == fmt_parent[i]) |
| 755 | break; |
| 756 | if (i == ARRAY_SIZE(fmt_parent)) |
| 757 | goto out; |
| 758 | |
| 759 | target_fmt = container_of(to_config_group(target), struct uvcg_format, |
| 760 | group); |
| 761 | if (!target_fmt) |
| 762 | goto out; |
| 763 | |
| 764 | format_ptr = kzalloc(sizeof(*format_ptr), GFP_KERNEL); |
| 765 | if (!format_ptr) { |
Dan Carpenter | df90f83 | 2015-01-14 23:59:48 +0300 | [diff] [blame] | 766 | ret = -ENOMEM; |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 767 | goto out; |
| 768 | } |
| 769 | ret = 0; |
| 770 | format_ptr->fmt = target_fmt; |
| 771 | list_add_tail(&format_ptr->entry, &src_hdr->formats); |
| 772 | ++src_hdr->num_fmt; |
| 773 | |
| 774 | out: |
| 775 | mutex_unlock(&opts->lock); |
| 776 | mutex_unlock(su_mutex); |
| 777 | return ret; |
| 778 | } |
| 779 | |
| 780 | static int uvcg_streaming_header_drop_link(struct config_item *src, |
| 781 | struct config_item *target) |
| 782 | { |
| 783 | struct mutex *su_mutex = &src->ci_group->cg_subsys->su_mutex; |
| 784 | struct config_item *opts_item; |
| 785 | struct f_uvc_opts *opts; |
| 786 | struct uvcg_streaming_header *src_hdr; |
| 787 | struct uvcg_format *target_fmt = NULL; |
| 788 | struct uvcg_format_ptr *format_ptr, *tmp; |
| 789 | int ret = -EINVAL; |
| 790 | |
| 791 | src_hdr = to_uvcg_streaming_header(src); |
| 792 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ |
| 793 | |
| 794 | opts_item = src->ci_parent->ci_parent->ci_parent; |
| 795 | opts = to_f_uvc_opts(opts_item); |
| 796 | |
| 797 | mutex_lock(&opts->lock); |
| 798 | target_fmt = container_of(to_config_group(target), struct uvcg_format, |
| 799 | group); |
| 800 | if (!target_fmt) |
| 801 | goto out; |
| 802 | |
| 803 | list_for_each_entry_safe(format_ptr, tmp, &src_hdr->formats, entry) |
| 804 | if (format_ptr->fmt == target_fmt) { |
| 805 | list_del(&format_ptr->entry); |
| 806 | kfree(format_ptr); |
| 807 | --src_hdr->num_fmt; |
| 808 | break; |
| 809 | } |
| 810 | |
| 811 | out: |
| 812 | mutex_unlock(&opts->lock); |
| 813 | mutex_unlock(su_mutex); |
| 814 | return ret; |
| 815 | |
| 816 | } |
| 817 | |
| 818 | static struct configfs_item_operations uvcg_streaming_header_item_ops = { |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 819 | .allow_link = uvcg_streaming_header_allow_link, |
| 820 | .drop_link = uvcg_streaming_header_drop_link, |
| 821 | }; |
| 822 | |
| 823 | #define UVCG_STREAMING_HEADER_ATTR(cname, aname, conv) \ |
| 824 | static ssize_t uvcg_streaming_header_##cname##_show( \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 825 | struct config_item *item, char *page) \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 826 | { \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 827 | struct uvcg_streaming_header *sh = to_uvcg_streaming_header(item); \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 828 | struct f_uvc_opts *opts; \ |
| 829 | struct config_item *opts_item; \ |
| 830 | struct mutex *su_mutex = &sh->item.ci_group->cg_subsys->su_mutex;\ |
| 831 | int result; \ |
| 832 | \ |
| 833 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ \ |
| 834 | \ |
| 835 | opts_item = sh->item.ci_parent->ci_parent->ci_parent; \ |
| 836 | opts = to_f_uvc_opts(opts_item); \ |
| 837 | \ |
| 838 | mutex_lock(&opts->lock); \ |
| 839 | result = sprintf(page, "%d\n", conv(sh->desc.aname)); \ |
| 840 | mutex_unlock(&opts->lock); \ |
| 841 | \ |
| 842 | mutex_unlock(su_mutex); \ |
| 843 | return result; \ |
| 844 | } \ |
| 845 | \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 846 | UVC_ATTR_RO(uvcg_streaming_header_, cname, aname) |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 847 | |
| 848 | #define identity_conv(x) (x) |
| 849 | |
| 850 | UVCG_STREAMING_HEADER_ATTR(bm_info, bmInfo, identity_conv); |
| 851 | UVCG_STREAMING_HEADER_ATTR(b_terminal_link, bTerminalLink, identity_conv); |
| 852 | UVCG_STREAMING_HEADER_ATTR(b_still_capture_method, bStillCaptureMethod, |
| 853 | identity_conv); |
| 854 | UVCG_STREAMING_HEADER_ATTR(b_trigger_support, bTriggerSupport, identity_conv); |
| 855 | UVCG_STREAMING_HEADER_ATTR(b_trigger_usage, bTriggerUsage, identity_conv); |
| 856 | |
| 857 | #undef identity_conv |
| 858 | |
| 859 | #undef UVCG_STREAMING_HEADER_ATTR |
| 860 | |
| 861 | static struct configfs_attribute *uvcg_streaming_header_attrs[] = { |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 862 | &uvcg_streaming_header_attr_bm_info, |
| 863 | &uvcg_streaming_header_attr_b_terminal_link, |
| 864 | &uvcg_streaming_header_attr_b_still_capture_method, |
| 865 | &uvcg_streaming_header_attr_b_trigger_support, |
| 866 | &uvcg_streaming_header_attr_b_trigger_usage, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 867 | NULL, |
| 868 | }; |
| 869 | |
kbuild test robot | f093a2d | 2015-01-13 16:55:38 +0800 | [diff] [blame] | 870 | static struct config_item_type uvcg_streaming_header_type = { |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 871 | .ct_item_ops = &uvcg_streaming_header_item_ops, |
| 872 | .ct_attrs = uvcg_streaming_header_attrs, |
| 873 | .ct_owner = THIS_MODULE, |
| 874 | }; |
| 875 | |
| 876 | static struct config_item |
| 877 | *uvcg_streaming_header_make(struct config_group *group, const char *name) |
| 878 | { |
| 879 | struct uvcg_streaming_header *h; |
| 880 | |
| 881 | h = kzalloc(sizeof(*h), GFP_KERNEL); |
| 882 | if (!h) |
Dan Carpenter | df90f83 | 2015-01-14 23:59:48 +0300 | [diff] [blame] | 883 | return ERR_PTR(-ENOMEM); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 884 | |
| 885 | INIT_LIST_HEAD(&h->formats); |
| 886 | h->desc.bDescriptorType = USB_DT_CS_INTERFACE; |
| 887 | h->desc.bDescriptorSubType = UVC_VS_INPUT_HEADER; |
| 888 | h->desc.bTerminalLink = 3; |
| 889 | h->desc.bControlSize = UVCG_STREAMING_CONTROL_SIZE; |
| 890 | |
| 891 | config_item_init_type_name(&h->item, name, &uvcg_streaming_header_type); |
| 892 | |
| 893 | return &h->item; |
| 894 | } |
| 895 | |
kbuild test robot | f093a2d | 2015-01-13 16:55:38 +0800 | [diff] [blame] | 896 | static void uvcg_streaming_header_drop(struct config_group *group, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 897 | struct config_item *item) |
| 898 | { |
| 899 | struct uvcg_streaming_header *h = to_uvcg_streaming_header(item); |
| 900 | |
| 901 | kfree(h); |
| 902 | } |
| 903 | |
| 904 | /* streaming/header */ |
| 905 | static struct uvcg_streaming_header_grp { |
| 906 | struct config_group group; |
| 907 | } uvcg_streaming_header_grp; |
| 908 | |
| 909 | static struct configfs_group_operations uvcg_streaming_header_grp_ops = { |
| 910 | .make_item = uvcg_streaming_header_make, |
| 911 | .drop_item = uvcg_streaming_header_drop, |
| 912 | }; |
| 913 | |
| 914 | static struct config_item_type uvcg_streaming_header_grp_type = { |
| 915 | .ct_group_ops = &uvcg_streaming_header_grp_ops, |
| 916 | .ct_owner = THIS_MODULE, |
| 917 | }; |
| 918 | |
| 919 | /* streaming/<mode>/<format>/<NAME> */ |
| 920 | struct uvcg_frame { |
| 921 | struct { |
| 922 | u8 b_length; |
| 923 | u8 b_descriptor_type; |
| 924 | u8 b_descriptor_subtype; |
| 925 | u8 b_frame_index; |
| 926 | u8 bm_capabilities; |
| 927 | u16 w_width; |
| 928 | u16 w_height; |
| 929 | u32 dw_min_bit_rate; |
| 930 | u32 dw_max_bit_rate; |
| 931 | u32 dw_max_video_frame_buffer_size; |
| 932 | u32 dw_default_frame_interval; |
| 933 | u8 b_frame_interval_type; |
| 934 | } __attribute__((packed)) frame; |
| 935 | u32 *dw_frame_interval; |
| 936 | enum uvcg_format_type fmt_type; |
| 937 | struct config_item item; |
| 938 | }; |
| 939 | |
kbuild test robot | f093a2d | 2015-01-13 16:55:38 +0800 | [diff] [blame] | 940 | static struct uvcg_frame *to_uvcg_frame(struct config_item *item) |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 941 | { |
| 942 | return container_of(item, struct uvcg_frame, item); |
| 943 | } |
| 944 | |
Dan Carpenter | 3c4c733 | 2015-01-15 00:06:35 +0300 | [diff] [blame] | 945 | #define UVCG_FRAME_ATTR(cname, aname, to_cpu_endian, to_little_endian, bits) \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 946 | static ssize_t uvcg_frame_##cname##_show(struct config_item *item, char *page)\ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 947 | { \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 948 | struct uvcg_frame *f = to_uvcg_frame(item); \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 949 | struct f_uvc_opts *opts; \ |
| 950 | struct config_item *opts_item; \ |
| 951 | struct mutex *su_mutex = &f->item.ci_group->cg_subsys->su_mutex;\ |
| 952 | int result; \ |
| 953 | \ |
| 954 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ \ |
| 955 | \ |
| 956 | opts_item = f->item.ci_parent->ci_parent->ci_parent->ci_parent; \ |
| 957 | opts = to_f_uvc_opts(opts_item); \ |
| 958 | \ |
| 959 | mutex_lock(&opts->lock); \ |
Dan Carpenter | 3c4c733 | 2015-01-15 00:06:35 +0300 | [diff] [blame] | 960 | result = sprintf(page, "%d\n", to_cpu_endian(f->frame.cname)); \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 961 | mutex_unlock(&opts->lock); \ |
| 962 | \ |
| 963 | mutex_unlock(su_mutex); \ |
| 964 | return result; \ |
| 965 | } \ |
| 966 | \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 967 | static ssize_t uvcg_frame_##cname##_store(struct config_item *item, \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 968 | const char *page, size_t len)\ |
| 969 | { \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 970 | struct uvcg_frame *f = to_uvcg_frame(item); \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 971 | struct f_uvc_opts *opts; \ |
| 972 | struct config_item *opts_item; \ |
| 973 | struct uvcg_format *fmt; \ |
| 974 | struct mutex *su_mutex = &f->item.ci_group->cg_subsys->su_mutex;\ |
| 975 | int ret; \ |
Dan Carpenter | 3c4c733 | 2015-01-15 00:06:35 +0300 | [diff] [blame] | 976 | u##bits num; \ |
| 977 | \ |
| 978 | ret = kstrtou##bits(page, 0, &num); \ |
| 979 | if (ret) \ |
| 980 | return ret; \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 981 | \ |
| 982 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ \ |
| 983 | \ |
| 984 | opts_item = f->item.ci_parent->ci_parent->ci_parent->ci_parent; \ |
| 985 | opts = to_f_uvc_opts(opts_item); \ |
| 986 | fmt = to_uvcg_format(f->item.ci_parent); \ |
| 987 | \ |
| 988 | mutex_lock(&opts->lock); \ |
| 989 | if (fmt->linked || opts->refcnt) { \ |
| 990 | ret = -EBUSY; \ |
| 991 | goto end; \ |
| 992 | } \ |
| 993 | \ |
Dan Carpenter | 3c4c733 | 2015-01-15 00:06:35 +0300 | [diff] [blame] | 994 | f->frame.cname = to_little_endian(num); \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 995 | ret = len; \ |
| 996 | end: \ |
| 997 | mutex_unlock(&opts->lock); \ |
| 998 | mutex_unlock(su_mutex); \ |
| 999 | return ret; \ |
| 1000 | } \ |
| 1001 | \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1002 | UVC_ATTR(uvcg_frame_, cname, aname); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1003 | |
Dan Carpenter | 3c4c733 | 2015-01-15 00:06:35 +0300 | [diff] [blame] | 1004 | #define noop_conversion(x) (x) |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1005 | |
Dan Carpenter | 3c4c733 | 2015-01-15 00:06:35 +0300 | [diff] [blame] | 1006 | UVCG_FRAME_ATTR(bm_capabilities, bmCapabilities, noop_conversion, |
| 1007 | noop_conversion, 8); |
| 1008 | UVCG_FRAME_ATTR(w_width, wWidth, le16_to_cpu, cpu_to_le16, 16); |
| 1009 | UVCG_FRAME_ATTR(w_height, wHeight, le16_to_cpu, cpu_to_le16, 16); |
| 1010 | UVCG_FRAME_ATTR(dw_min_bit_rate, dwMinBitRate, le32_to_cpu, cpu_to_le32, 32); |
| 1011 | UVCG_FRAME_ATTR(dw_max_bit_rate, dwMaxBitRate, le32_to_cpu, cpu_to_le32, 32); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1012 | UVCG_FRAME_ATTR(dw_max_video_frame_buffer_size, dwMaxVideoFrameBufferSize, |
Dan Carpenter | 3c4c733 | 2015-01-15 00:06:35 +0300 | [diff] [blame] | 1013 | le32_to_cpu, cpu_to_le32, 32); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1014 | UVCG_FRAME_ATTR(dw_default_frame_interval, dwDefaultFrameInterval, |
Dan Carpenter | 3c4c733 | 2015-01-15 00:06:35 +0300 | [diff] [blame] | 1015 | le32_to_cpu, cpu_to_le32, 32); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1016 | |
Dan Carpenter | 3c4c733 | 2015-01-15 00:06:35 +0300 | [diff] [blame] | 1017 | #undef noop_conversion |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1018 | |
| 1019 | #undef UVCG_FRAME_ATTR |
| 1020 | |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1021 | static ssize_t uvcg_frame_dw_frame_interval_show(struct config_item *item, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1022 | char *page) |
| 1023 | { |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1024 | struct uvcg_frame *frm = to_uvcg_frame(item); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1025 | struct f_uvc_opts *opts; |
| 1026 | struct config_item *opts_item; |
| 1027 | struct mutex *su_mutex = &frm->item.ci_group->cg_subsys->su_mutex; |
| 1028 | int result, i; |
| 1029 | char *pg = page; |
| 1030 | |
| 1031 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ |
| 1032 | |
| 1033 | opts_item = frm->item.ci_parent->ci_parent->ci_parent->ci_parent; |
| 1034 | opts = to_f_uvc_opts(opts_item); |
| 1035 | |
| 1036 | mutex_lock(&opts->lock); |
| 1037 | for (result = 0, i = 0; i < frm->frame.b_frame_interval_type; ++i) { |
| 1038 | result += sprintf(pg, "%d\n", |
| 1039 | le32_to_cpu(frm->dw_frame_interval[i])); |
| 1040 | pg = page + result; |
| 1041 | } |
| 1042 | mutex_unlock(&opts->lock); |
| 1043 | |
| 1044 | mutex_unlock(su_mutex); |
| 1045 | return result; |
| 1046 | } |
| 1047 | |
| 1048 | static inline int __uvcg_count_frm_intrv(char *buf, void *priv) |
| 1049 | { |
| 1050 | ++*((int *)priv); |
| 1051 | return 0; |
| 1052 | } |
| 1053 | |
| 1054 | static inline int __uvcg_fill_frm_intrv(char *buf, void *priv) |
| 1055 | { |
| 1056 | u32 num, **interv; |
| 1057 | int ret; |
| 1058 | |
| 1059 | ret = kstrtou32(buf, 0, &num); |
| 1060 | if (ret) |
| 1061 | return ret; |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1062 | |
| 1063 | interv = priv; |
| 1064 | **interv = cpu_to_le32(num); |
| 1065 | ++*interv; |
| 1066 | |
| 1067 | return 0; |
| 1068 | } |
| 1069 | |
| 1070 | static int __uvcg_iter_frm_intrv(const char *page, size_t len, |
| 1071 | int (*fun)(char *, void *), void *priv) |
| 1072 | { |
| 1073 | /* sign, base 2 representation, newline, terminator */ |
| 1074 | char buf[1 + sizeof(u32) * 8 + 1 + 1]; |
| 1075 | const char *pg = page; |
| 1076 | int i, ret; |
| 1077 | |
| 1078 | if (!fun) |
| 1079 | return -EINVAL; |
| 1080 | |
| 1081 | while (pg - page < len) { |
| 1082 | i = 0; |
| 1083 | while (i < sizeof(buf) && (pg - page < len) && |
| 1084 | *pg != '\0' && *pg != '\n') |
| 1085 | buf[i++] = *pg++; |
| 1086 | if (i == sizeof(buf)) |
| 1087 | return -EINVAL; |
| 1088 | while ((pg - page < len) && (*pg == '\0' || *pg == '\n')) |
| 1089 | ++pg; |
| 1090 | buf[i] = '\0'; |
| 1091 | ret = fun(buf, priv); |
| 1092 | if (ret) |
| 1093 | return ret; |
| 1094 | } |
| 1095 | |
| 1096 | return 0; |
| 1097 | } |
| 1098 | |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1099 | static ssize_t uvcg_frame_dw_frame_interval_store(struct config_item *item, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1100 | const char *page, size_t len) |
| 1101 | { |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1102 | struct uvcg_frame *ch = to_uvcg_frame(item); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1103 | struct f_uvc_opts *opts; |
| 1104 | struct config_item *opts_item; |
| 1105 | struct uvcg_format *fmt; |
| 1106 | struct mutex *su_mutex = &ch->item.ci_group->cg_subsys->su_mutex; |
| 1107 | int ret = 0, n = 0; |
| 1108 | u32 *frm_intrv, *tmp; |
| 1109 | |
| 1110 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ |
| 1111 | |
| 1112 | opts_item = ch->item.ci_parent->ci_parent->ci_parent->ci_parent; |
| 1113 | opts = to_f_uvc_opts(opts_item); |
| 1114 | fmt = to_uvcg_format(ch->item.ci_parent); |
| 1115 | |
| 1116 | mutex_lock(&opts->lock); |
| 1117 | if (fmt->linked || opts->refcnt) { |
| 1118 | ret = -EBUSY; |
| 1119 | goto end; |
| 1120 | } |
| 1121 | |
| 1122 | ret = __uvcg_iter_frm_intrv(page, len, __uvcg_count_frm_intrv, &n); |
| 1123 | if (ret) |
| 1124 | goto end; |
| 1125 | |
| 1126 | tmp = frm_intrv = kcalloc(n, sizeof(u32), GFP_KERNEL); |
| 1127 | if (!frm_intrv) { |
| 1128 | ret = -ENOMEM; |
| 1129 | goto end; |
| 1130 | } |
| 1131 | |
| 1132 | ret = __uvcg_iter_frm_intrv(page, len, __uvcg_fill_frm_intrv, &tmp); |
| 1133 | if (ret) { |
| 1134 | kfree(frm_intrv); |
| 1135 | goto end; |
| 1136 | } |
| 1137 | |
| 1138 | kfree(ch->dw_frame_interval); |
| 1139 | ch->dw_frame_interval = frm_intrv; |
| 1140 | ch->frame.b_frame_interval_type = n; |
| 1141 | ret = len; |
| 1142 | |
| 1143 | end: |
| 1144 | mutex_unlock(&opts->lock); |
| 1145 | mutex_unlock(su_mutex); |
| 1146 | return ret; |
| 1147 | } |
| 1148 | |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1149 | UVC_ATTR(uvcg_frame_, dw_frame_interval, dwFrameInterval); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1150 | |
| 1151 | static struct configfs_attribute *uvcg_frame_attrs[] = { |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1152 | &uvcg_frame_attr_bm_capabilities, |
| 1153 | &uvcg_frame_attr_w_width, |
| 1154 | &uvcg_frame_attr_w_height, |
| 1155 | &uvcg_frame_attr_dw_min_bit_rate, |
| 1156 | &uvcg_frame_attr_dw_max_bit_rate, |
| 1157 | &uvcg_frame_attr_dw_max_video_frame_buffer_size, |
| 1158 | &uvcg_frame_attr_dw_default_frame_interval, |
| 1159 | &uvcg_frame_attr_dw_frame_interval, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1160 | NULL, |
| 1161 | }; |
| 1162 | |
kbuild test robot | f093a2d | 2015-01-13 16:55:38 +0800 | [diff] [blame] | 1163 | static struct config_item_type uvcg_frame_type = { |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1164 | .ct_attrs = uvcg_frame_attrs, |
| 1165 | .ct_owner = THIS_MODULE, |
| 1166 | }; |
| 1167 | |
| 1168 | static struct config_item *uvcg_frame_make(struct config_group *group, |
| 1169 | const char *name) |
| 1170 | { |
| 1171 | struct uvcg_frame *h; |
| 1172 | struct uvcg_format *fmt; |
| 1173 | struct f_uvc_opts *opts; |
| 1174 | struct config_item *opts_item; |
| 1175 | |
| 1176 | h = kzalloc(sizeof(*h), GFP_KERNEL); |
| 1177 | if (!h) |
Dan Carpenter | df90f83 | 2015-01-14 23:59:48 +0300 | [diff] [blame] | 1178 | return ERR_PTR(-ENOMEM); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1179 | |
| 1180 | h->frame.b_descriptor_type = USB_DT_CS_INTERFACE; |
| 1181 | h->frame.b_frame_index = 1; |
| 1182 | h->frame.w_width = cpu_to_le16(640); |
| 1183 | h->frame.w_height = cpu_to_le16(360); |
| 1184 | h->frame.dw_min_bit_rate = cpu_to_le32(18432000); |
| 1185 | h->frame.dw_max_bit_rate = cpu_to_le32(55296000); |
| 1186 | h->frame.dw_max_video_frame_buffer_size = cpu_to_le32(460800); |
| 1187 | h->frame.dw_default_frame_interval = cpu_to_le32(666666); |
| 1188 | |
| 1189 | opts_item = group->cg_item.ci_parent->ci_parent->ci_parent; |
| 1190 | opts = to_f_uvc_opts(opts_item); |
| 1191 | |
| 1192 | mutex_lock(&opts->lock); |
| 1193 | fmt = to_uvcg_format(&group->cg_item); |
| 1194 | if (fmt->type == UVCG_UNCOMPRESSED) { |
| 1195 | h->frame.b_descriptor_subtype = UVC_VS_FRAME_UNCOMPRESSED; |
| 1196 | h->fmt_type = UVCG_UNCOMPRESSED; |
| 1197 | } else if (fmt->type == UVCG_MJPEG) { |
| 1198 | h->frame.b_descriptor_subtype = UVC_VS_FRAME_MJPEG; |
| 1199 | h->fmt_type = UVCG_MJPEG; |
| 1200 | } else { |
| 1201 | mutex_unlock(&opts->lock); |
Dan Carpenter | c5b2dc6 | 2015-01-15 00:03:08 +0300 | [diff] [blame] | 1202 | kfree(h); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1203 | return ERR_PTR(-EINVAL); |
| 1204 | } |
| 1205 | ++fmt->num_frames; |
| 1206 | mutex_unlock(&opts->lock); |
| 1207 | |
| 1208 | config_item_init_type_name(&h->item, name, &uvcg_frame_type); |
| 1209 | |
| 1210 | return &h->item; |
| 1211 | } |
| 1212 | |
kbuild test robot | f093a2d | 2015-01-13 16:55:38 +0800 | [diff] [blame] | 1213 | static void uvcg_frame_drop(struct config_group *group, struct config_item *item) |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1214 | { |
| 1215 | struct uvcg_frame *h = to_uvcg_frame(item); |
| 1216 | struct uvcg_format *fmt; |
| 1217 | struct f_uvc_opts *opts; |
| 1218 | struct config_item *opts_item; |
| 1219 | |
| 1220 | opts_item = group->cg_item.ci_parent->ci_parent->ci_parent; |
| 1221 | opts = to_f_uvc_opts(opts_item); |
| 1222 | |
| 1223 | mutex_lock(&opts->lock); |
| 1224 | fmt = to_uvcg_format(&group->cg_item); |
| 1225 | --fmt->num_frames; |
| 1226 | kfree(h); |
| 1227 | mutex_unlock(&opts->lock); |
| 1228 | } |
| 1229 | |
| 1230 | /* streaming/uncompressed/<NAME> */ |
| 1231 | struct uvcg_uncompressed { |
| 1232 | struct uvcg_format fmt; |
| 1233 | struct uvc_format_uncompressed desc; |
| 1234 | }; |
| 1235 | |
kbuild test robot | f093a2d | 2015-01-13 16:55:38 +0800 | [diff] [blame] | 1236 | static struct uvcg_uncompressed *to_uvcg_uncompressed(struct config_item *item) |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1237 | { |
| 1238 | return container_of( |
| 1239 | container_of(to_config_group(item), struct uvcg_format, group), |
| 1240 | struct uvcg_uncompressed, fmt); |
| 1241 | } |
| 1242 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1243 | static struct configfs_group_operations uvcg_uncompressed_group_ops = { |
| 1244 | .make_item = uvcg_frame_make, |
| 1245 | .drop_item = uvcg_frame_drop, |
| 1246 | }; |
| 1247 | |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1248 | static ssize_t uvcg_uncompressed_guid_format_show(struct config_item *item, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1249 | char *page) |
| 1250 | { |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1251 | struct uvcg_uncompressed *ch = to_uvcg_uncompressed(item); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1252 | struct f_uvc_opts *opts; |
| 1253 | struct config_item *opts_item; |
| 1254 | struct mutex *su_mutex = &ch->fmt.group.cg_subsys->su_mutex; |
| 1255 | |
| 1256 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ |
| 1257 | |
| 1258 | opts_item = ch->fmt.group.cg_item.ci_parent->ci_parent->ci_parent; |
| 1259 | opts = to_f_uvc_opts(opts_item); |
| 1260 | |
| 1261 | mutex_lock(&opts->lock); |
| 1262 | memcpy(page, ch->desc.guidFormat, sizeof(ch->desc.guidFormat)); |
| 1263 | mutex_unlock(&opts->lock); |
| 1264 | |
| 1265 | mutex_unlock(su_mutex); |
| 1266 | |
| 1267 | return sizeof(ch->desc.guidFormat); |
| 1268 | } |
| 1269 | |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1270 | static ssize_t uvcg_uncompressed_guid_format_store(struct config_item *item, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1271 | const char *page, size_t len) |
| 1272 | { |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1273 | struct uvcg_uncompressed *ch = to_uvcg_uncompressed(item); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1274 | struct f_uvc_opts *opts; |
| 1275 | struct config_item *opts_item; |
| 1276 | struct mutex *su_mutex = &ch->fmt.group.cg_subsys->su_mutex; |
| 1277 | int ret; |
| 1278 | |
| 1279 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ |
| 1280 | |
| 1281 | opts_item = ch->fmt.group.cg_item.ci_parent->ci_parent->ci_parent; |
| 1282 | opts = to_f_uvc_opts(opts_item); |
| 1283 | |
| 1284 | mutex_lock(&opts->lock); |
| 1285 | if (ch->fmt.linked || opts->refcnt) { |
| 1286 | ret = -EBUSY; |
| 1287 | goto end; |
| 1288 | } |
| 1289 | |
| 1290 | memcpy(ch->desc.guidFormat, page, |
| 1291 | min(sizeof(ch->desc.guidFormat), len)); |
| 1292 | ret = sizeof(ch->desc.guidFormat); |
| 1293 | |
| 1294 | end: |
| 1295 | mutex_unlock(&opts->lock); |
| 1296 | mutex_unlock(su_mutex); |
| 1297 | return ret; |
| 1298 | } |
| 1299 | |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1300 | UVC_ATTR(uvcg_uncompressed_, guid_format, guidFormat); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1301 | |
| 1302 | #define UVCG_UNCOMPRESSED_ATTR_RO(cname, aname, conv) \ |
| 1303 | static ssize_t uvcg_uncompressed_##cname##_show( \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1304 | struct config_item *item, char *page) \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1305 | { \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1306 | struct uvcg_uncompressed *u = to_uvcg_uncompressed(item); \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1307 | struct f_uvc_opts *opts; \ |
| 1308 | struct config_item *opts_item; \ |
| 1309 | struct mutex *su_mutex = &u->fmt.group.cg_subsys->su_mutex; \ |
| 1310 | int result; \ |
| 1311 | \ |
| 1312 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ \ |
| 1313 | \ |
| 1314 | opts_item = u->fmt.group.cg_item.ci_parent->ci_parent->ci_parent;\ |
| 1315 | opts = to_f_uvc_opts(opts_item); \ |
| 1316 | \ |
| 1317 | mutex_lock(&opts->lock); \ |
| 1318 | result = sprintf(page, "%d\n", conv(u->desc.aname)); \ |
| 1319 | mutex_unlock(&opts->lock); \ |
| 1320 | \ |
| 1321 | mutex_unlock(su_mutex); \ |
| 1322 | return result; \ |
| 1323 | } \ |
| 1324 | \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1325 | UVC_ATTR_RO(uvcg_uncompressed_, cname, aname); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1326 | |
| 1327 | #define UVCG_UNCOMPRESSED_ATTR(cname, aname, conv) \ |
| 1328 | static ssize_t uvcg_uncompressed_##cname##_show( \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1329 | struct config_item *item, char *page) \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1330 | { \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1331 | struct uvcg_uncompressed *u = to_uvcg_uncompressed(item); \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1332 | struct f_uvc_opts *opts; \ |
| 1333 | struct config_item *opts_item; \ |
| 1334 | struct mutex *su_mutex = &u->fmt.group.cg_subsys->su_mutex; \ |
| 1335 | int result; \ |
| 1336 | \ |
| 1337 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ \ |
| 1338 | \ |
| 1339 | opts_item = u->fmt.group.cg_item.ci_parent->ci_parent->ci_parent;\ |
| 1340 | opts = to_f_uvc_opts(opts_item); \ |
| 1341 | \ |
| 1342 | mutex_lock(&opts->lock); \ |
| 1343 | result = sprintf(page, "%d\n", conv(u->desc.aname)); \ |
| 1344 | mutex_unlock(&opts->lock); \ |
| 1345 | \ |
| 1346 | mutex_unlock(su_mutex); \ |
| 1347 | return result; \ |
| 1348 | } \ |
| 1349 | \ |
| 1350 | static ssize_t \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1351 | uvcg_uncompressed_##cname##_store(struct config_item *item, \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1352 | const char *page, size_t len) \ |
| 1353 | { \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1354 | struct uvcg_uncompressed *u = to_uvcg_uncompressed(item); \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1355 | struct f_uvc_opts *opts; \ |
| 1356 | struct config_item *opts_item; \ |
| 1357 | struct mutex *su_mutex = &u->fmt.group.cg_subsys->su_mutex; \ |
| 1358 | int ret; \ |
| 1359 | u8 num; \ |
| 1360 | \ |
| 1361 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ \ |
| 1362 | \ |
| 1363 | opts_item = u->fmt.group.cg_item.ci_parent->ci_parent->ci_parent;\ |
| 1364 | opts = to_f_uvc_opts(opts_item); \ |
| 1365 | \ |
| 1366 | mutex_lock(&opts->lock); \ |
| 1367 | if (u->fmt.linked || opts->refcnt) { \ |
| 1368 | ret = -EBUSY; \ |
| 1369 | goto end; \ |
| 1370 | } \ |
| 1371 | \ |
| 1372 | ret = kstrtou8(page, 0, &num); \ |
| 1373 | if (ret) \ |
| 1374 | goto end; \ |
| 1375 | \ |
| 1376 | if (num > 255) { \ |
| 1377 | ret = -EINVAL; \ |
| 1378 | goto end; \ |
| 1379 | } \ |
| 1380 | u->desc.aname = num; \ |
| 1381 | ret = len; \ |
| 1382 | end: \ |
| 1383 | mutex_unlock(&opts->lock); \ |
| 1384 | mutex_unlock(su_mutex); \ |
| 1385 | return ret; \ |
| 1386 | } \ |
| 1387 | \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1388 | UVC_ATTR(uvcg_uncompressed_, cname, aname); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1389 | |
| 1390 | #define identity_conv(x) (x) |
| 1391 | |
| 1392 | UVCG_UNCOMPRESSED_ATTR(b_bits_per_pixel, bBitsPerPixel, identity_conv); |
| 1393 | UVCG_UNCOMPRESSED_ATTR(b_default_frame_index, bDefaultFrameIndex, |
| 1394 | identity_conv); |
| 1395 | UVCG_UNCOMPRESSED_ATTR_RO(b_aspect_ratio_x, bAspectRatioX, identity_conv); |
| 1396 | UVCG_UNCOMPRESSED_ATTR_RO(b_aspect_ratio_y, bAspectRatioY, identity_conv); |
| 1397 | UVCG_UNCOMPRESSED_ATTR_RO(bm_interface_flags, bmInterfaceFlags, identity_conv); |
| 1398 | |
| 1399 | #undef identity_conv |
| 1400 | |
| 1401 | #undef UVCG_UNCOMPRESSED_ATTR |
| 1402 | #undef UVCG_UNCOMPRESSED_ATTR_RO |
| 1403 | |
| 1404 | static inline ssize_t |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1405 | uvcg_uncompressed_bma_controls_show(struct config_item *item, char *page) |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1406 | { |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1407 | struct uvcg_uncompressed *unc = to_uvcg_uncompressed(item); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1408 | return uvcg_format_bma_controls_show(&unc->fmt, page); |
| 1409 | } |
| 1410 | |
| 1411 | static inline ssize_t |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1412 | uvcg_uncompressed_bma_controls_store(struct config_item *item, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1413 | const char *page, size_t len) |
| 1414 | { |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1415 | struct uvcg_uncompressed *unc = to_uvcg_uncompressed(item); |
| 1416 | return uvcg_format_bma_controls_store(&unc->fmt, page, len); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1417 | } |
| 1418 | |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1419 | UVC_ATTR(uvcg_uncompressed_, bma_controls, bmaControls); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1420 | |
| 1421 | static struct configfs_attribute *uvcg_uncompressed_attrs[] = { |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1422 | &uvcg_uncompressed_attr_guid_format, |
| 1423 | &uvcg_uncompressed_attr_b_bits_per_pixel, |
| 1424 | &uvcg_uncompressed_attr_b_default_frame_index, |
| 1425 | &uvcg_uncompressed_attr_b_aspect_ratio_x, |
| 1426 | &uvcg_uncompressed_attr_b_aspect_ratio_y, |
| 1427 | &uvcg_uncompressed_attr_bm_interface_flags, |
| 1428 | &uvcg_uncompressed_attr_bma_controls, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1429 | NULL, |
| 1430 | }; |
| 1431 | |
kbuild test robot | f093a2d | 2015-01-13 16:55:38 +0800 | [diff] [blame] | 1432 | static struct config_item_type uvcg_uncompressed_type = { |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1433 | .ct_group_ops = &uvcg_uncompressed_group_ops, |
| 1434 | .ct_attrs = uvcg_uncompressed_attrs, |
| 1435 | .ct_owner = THIS_MODULE, |
| 1436 | }; |
| 1437 | |
| 1438 | static struct config_group *uvcg_uncompressed_make(struct config_group *group, |
| 1439 | const char *name) |
| 1440 | { |
| 1441 | static char guid[] = { |
| 1442 | 'Y', 'U', 'Y', '2', 0x00, 0x00, 0x10, 0x00, |
| 1443 | 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 |
| 1444 | }; |
| 1445 | struct uvcg_uncompressed *h; |
| 1446 | |
| 1447 | h = kzalloc(sizeof(*h), GFP_KERNEL); |
| 1448 | if (!h) |
Dan Carpenter | df90f83 | 2015-01-14 23:59:48 +0300 | [diff] [blame] | 1449 | return ERR_PTR(-ENOMEM); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1450 | |
| 1451 | h->desc.bLength = UVC_DT_FORMAT_UNCOMPRESSED_SIZE; |
| 1452 | h->desc.bDescriptorType = USB_DT_CS_INTERFACE; |
| 1453 | h->desc.bDescriptorSubType = UVC_VS_FORMAT_UNCOMPRESSED; |
| 1454 | memcpy(h->desc.guidFormat, guid, sizeof(guid)); |
| 1455 | h->desc.bBitsPerPixel = 16; |
| 1456 | h->desc.bDefaultFrameIndex = 1; |
| 1457 | h->desc.bAspectRatioX = 0; |
| 1458 | h->desc.bAspectRatioY = 0; |
| 1459 | h->desc.bmInterfaceFlags = 0; |
| 1460 | h->desc.bCopyProtect = 0; |
| 1461 | |
| 1462 | h->fmt.type = UVCG_UNCOMPRESSED; |
| 1463 | config_group_init_type_name(&h->fmt.group, name, |
| 1464 | &uvcg_uncompressed_type); |
| 1465 | |
| 1466 | return &h->fmt.group; |
| 1467 | } |
| 1468 | |
kbuild test robot | f093a2d | 2015-01-13 16:55:38 +0800 | [diff] [blame] | 1469 | static void uvcg_uncompressed_drop(struct config_group *group, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1470 | struct config_item *item) |
| 1471 | { |
| 1472 | struct uvcg_uncompressed *h = to_uvcg_uncompressed(item); |
| 1473 | |
| 1474 | kfree(h); |
| 1475 | } |
| 1476 | |
| 1477 | static struct configfs_group_operations uvcg_uncompressed_grp_ops = { |
| 1478 | .make_group = uvcg_uncompressed_make, |
| 1479 | .drop_item = uvcg_uncompressed_drop, |
| 1480 | }; |
| 1481 | |
| 1482 | static struct config_item_type uvcg_uncompressed_grp_type = { |
| 1483 | .ct_group_ops = &uvcg_uncompressed_grp_ops, |
| 1484 | .ct_owner = THIS_MODULE, |
| 1485 | }; |
| 1486 | |
| 1487 | /* streaming/mjpeg/<NAME> */ |
| 1488 | struct uvcg_mjpeg { |
| 1489 | struct uvcg_format fmt; |
| 1490 | struct uvc_format_mjpeg desc; |
| 1491 | }; |
| 1492 | |
kbuild test robot | f093a2d | 2015-01-13 16:55:38 +0800 | [diff] [blame] | 1493 | static struct uvcg_mjpeg *to_uvcg_mjpeg(struct config_item *item) |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1494 | { |
| 1495 | return container_of( |
| 1496 | container_of(to_config_group(item), struct uvcg_format, group), |
| 1497 | struct uvcg_mjpeg, fmt); |
| 1498 | } |
| 1499 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1500 | static struct configfs_group_operations uvcg_mjpeg_group_ops = { |
| 1501 | .make_item = uvcg_frame_make, |
| 1502 | .drop_item = uvcg_frame_drop, |
| 1503 | }; |
| 1504 | |
| 1505 | #define UVCG_MJPEG_ATTR_RO(cname, aname, conv) \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1506 | static ssize_t uvcg_mjpeg_##cname##_show(struct config_item *item, char *page)\ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1507 | { \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1508 | struct uvcg_mjpeg *u = to_uvcg_mjpeg(item); \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1509 | struct f_uvc_opts *opts; \ |
| 1510 | struct config_item *opts_item; \ |
| 1511 | struct mutex *su_mutex = &u->fmt.group.cg_subsys->su_mutex; \ |
| 1512 | int result; \ |
| 1513 | \ |
| 1514 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ \ |
| 1515 | \ |
| 1516 | opts_item = u->fmt.group.cg_item.ci_parent->ci_parent->ci_parent;\ |
| 1517 | opts = to_f_uvc_opts(opts_item); \ |
| 1518 | \ |
| 1519 | mutex_lock(&opts->lock); \ |
| 1520 | result = sprintf(page, "%d\n", conv(u->desc.aname)); \ |
| 1521 | mutex_unlock(&opts->lock); \ |
| 1522 | \ |
| 1523 | mutex_unlock(su_mutex); \ |
| 1524 | return result; \ |
| 1525 | } \ |
| 1526 | \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1527 | UVC_ATTR_RO(uvcg_mjpeg_, cname, aname) |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1528 | |
| 1529 | #define UVCG_MJPEG_ATTR(cname, aname, conv) \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1530 | static ssize_t uvcg_mjpeg_##cname##_show(struct config_item *item, char *page)\ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1531 | { \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1532 | struct uvcg_mjpeg *u = to_uvcg_mjpeg(item); \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1533 | struct f_uvc_opts *opts; \ |
| 1534 | struct config_item *opts_item; \ |
| 1535 | struct mutex *su_mutex = &u->fmt.group.cg_subsys->su_mutex; \ |
| 1536 | int result; \ |
| 1537 | \ |
| 1538 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ \ |
| 1539 | \ |
| 1540 | opts_item = u->fmt.group.cg_item.ci_parent->ci_parent->ci_parent;\ |
| 1541 | opts = to_f_uvc_opts(opts_item); \ |
| 1542 | \ |
| 1543 | mutex_lock(&opts->lock); \ |
| 1544 | result = sprintf(page, "%d\n", conv(u->desc.aname)); \ |
| 1545 | mutex_unlock(&opts->lock); \ |
| 1546 | \ |
| 1547 | mutex_unlock(su_mutex); \ |
| 1548 | return result; \ |
| 1549 | } \ |
| 1550 | \ |
| 1551 | static ssize_t \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1552 | uvcg_mjpeg_##cname##_store(struct config_item *item, \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1553 | const char *page, size_t len) \ |
| 1554 | { \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1555 | struct uvcg_mjpeg *u = to_uvcg_mjpeg(item); \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1556 | struct f_uvc_opts *opts; \ |
| 1557 | struct config_item *opts_item; \ |
| 1558 | struct mutex *su_mutex = &u->fmt.group.cg_subsys->su_mutex; \ |
| 1559 | int ret; \ |
| 1560 | u8 num; \ |
| 1561 | \ |
| 1562 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ \ |
| 1563 | \ |
| 1564 | opts_item = u->fmt.group.cg_item.ci_parent->ci_parent->ci_parent;\ |
| 1565 | opts = to_f_uvc_opts(opts_item); \ |
| 1566 | \ |
| 1567 | mutex_lock(&opts->lock); \ |
| 1568 | if (u->fmt.linked || opts->refcnt) { \ |
| 1569 | ret = -EBUSY; \ |
| 1570 | goto end; \ |
| 1571 | } \ |
| 1572 | \ |
| 1573 | ret = kstrtou8(page, 0, &num); \ |
| 1574 | if (ret) \ |
| 1575 | goto end; \ |
| 1576 | \ |
| 1577 | if (num > 255) { \ |
| 1578 | ret = -EINVAL; \ |
| 1579 | goto end; \ |
| 1580 | } \ |
| 1581 | u->desc.aname = num; \ |
| 1582 | ret = len; \ |
| 1583 | end: \ |
| 1584 | mutex_unlock(&opts->lock); \ |
| 1585 | mutex_unlock(su_mutex); \ |
| 1586 | return ret; \ |
| 1587 | } \ |
| 1588 | \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1589 | UVC_ATTR(uvcg_mjpeg_, cname, aname) |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1590 | |
| 1591 | #define identity_conv(x) (x) |
| 1592 | |
| 1593 | UVCG_MJPEG_ATTR(b_default_frame_index, bDefaultFrameIndex, |
| 1594 | identity_conv); |
| 1595 | UVCG_MJPEG_ATTR_RO(bm_flags, bmFlags, identity_conv); |
| 1596 | UVCG_MJPEG_ATTR_RO(b_aspect_ratio_x, bAspectRatioX, identity_conv); |
| 1597 | UVCG_MJPEG_ATTR_RO(b_aspect_ratio_y, bAspectRatioY, identity_conv); |
| 1598 | UVCG_MJPEG_ATTR_RO(bm_interface_flags, bmInterfaceFlags, identity_conv); |
| 1599 | |
| 1600 | #undef identity_conv |
| 1601 | |
| 1602 | #undef UVCG_MJPEG_ATTR |
| 1603 | #undef UVCG_MJPEG_ATTR_RO |
| 1604 | |
| 1605 | static inline ssize_t |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1606 | uvcg_mjpeg_bma_controls_show(struct config_item *item, char *page) |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1607 | { |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1608 | struct uvcg_mjpeg *u = to_uvcg_mjpeg(item); |
| 1609 | return uvcg_format_bma_controls_show(&u->fmt, page); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1610 | } |
| 1611 | |
| 1612 | static inline ssize_t |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1613 | uvcg_mjpeg_bma_controls_store(struct config_item *item, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1614 | const char *page, size_t len) |
| 1615 | { |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1616 | struct uvcg_mjpeg *u = to_uvcg_mjpeg(item); |
| 1617 | return uvcg_format_bma_controls_store(&u->fmt, page, len); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1618 | } |
| 1619 | |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1620 | UVC_ATTR(uvcg_mjpeg_, bma_controls, bmaControls); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1621 | |
| 1622 | static struct configfs_attribute *uvcg_mjpeg_attrs[] = { |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1623 | &uvcg_mjpeg_attr_b_default_frame_index, |
| 1624 | &uvcg_mjpeg_attr_bm_flags, |
| 1625 | &uvcg_mjpeg_attr_b_aspect_ratio_x, |
| 1626 | &uvcg_mjpeg_attr_b_aspect_ratio_y, |
| 1627 | &uvcg_mjpeg_attr_bm_interface_flags, |
| 1628 | &uvcg_mjpeg_attr_bma_controls, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1629 | NULL, |
| 1630 | }; |
| 1631 | |
kbuild test robot | f093a2d | 2015-01-13 16:55:38 +0800 | [diff] [blame] | 1632 | static struct config_item_type uvcg_mjpeg_type = { |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1633 | .ct_group_ops = &uvcg_mjpeg_group_ops, |
| 1634 | .ct_attrs = uvcg_mjpeg_attrs, |
| 1635 | .ct_owner = THIS_MODULE, |
| 1636 | }; |
| 1637 | |
| 1638 | static struct config_group *uvcg_mjpeg_make(struct config_group *group, |
| 1639 | const char *name) |
| 1640 | { |
| 1641 | struct uvcg_mjpeg *h; |
| 1642 | |
| 1643 | h = kzalloc(sizeof(*h), GFP_KERNEL); |
| 1644 | if (!h) |
Dan Carpenter | df90f83 | 2015-01-14 23:59:48 +0300 | [diff] [blame] | 1645 | return ERR_PTR(-ENOMEM); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1646 | |
| 1647 | h->desc.bLength = UVC_DT_FORMAT_MJPEG_SIZE; |
| 1648 | h->desc.bDescriptorType = USB_DT_CS_INTERFACE; |
| 1649 | h->desc.bDescriptorSubType = UVC_VS_FORMAT_MJPEG; |
| 1650 | h->desc.bDefaultFrameIndex = 1; |
| 1651 | h->desc.bAspectRatioX = 0; |
| 1652 | h->desc.bAspectRatioY = 0; |
| 1653 | h->desc.bmInterfaceFlags = 0; |
| 1654 | h->desc.bCopyProtect = 0; |
| 1655 | |
| 1656 | h->fmt.type = UVCG_MJPEG; |
| 1657 | config_group_init_type_name(&h->fmt.group, name, |
| 1658 | &uvcg_mjpeg_type); |
| 1659 | |
| 1660 | return &h->fmt.group; |
| 1661 | } |
| 1662 | |
kbuild test robot | f093a2d | 2015-01-13 16:55:38 +0800 | [diff] [blame] | 1663 | static void uvcg_mjpeg_drop(struct config_group *group, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1664 | struct config_item *item) |
| 1665 | { |
| 1666 | struct uvcg_mjpeg *h = to_uvcg_mjpeg(item); |
| 1667 | |
| 1668 | kfree(h); |
| 1669 | } |
| 1670 | |
| 1671 | static struct configfs_group_operations uvcg_mjpeg_grp_ops = { |
| 1672 | .make_group = uvcg_mjpeg_make, |
| 1673 | .drop_item = uvcg_mjpeg_drop, |
| 1674 | }; |
| 1675 | |
| 1676 | static struct config_item_type uvcg_mjpeg_grp_type = { |
| 1677 | .ct_group_ops = &uvcg_mjpeg_grp_ops, |
| 1678 | .ct_owner = THIS_MODULE, |
| 1679 | }; |
| 1680 | |
| 1681 | /* streaming/color_matching/default */ |
| 1682 | static struct uvcg_default_color_matching { |
| 1683 | struct config_group group; |
| 1684 | } uvcg_default_color_matching; |
| 1685 | |
| 1686 | static inline struct uvcg_default_color_matching |
| 1687 | *to_uvcg_default_color_matching(struct config_item *item) |
| 1688 | { |
| 1689 | return container_of(to_config_group(item), |
| 1690 | struct uvcg_default_color_matching, group); |
| 1691 | } |
| 1692 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1693 | #define UVCG_DEFAULT_COLOR_MATCHING_ATTR(cname, aname, conv) \ |
| 1694 | static ssize_t uvcg_default_color_matching_##cname##_show( \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1695 | struct config_item *item, char *page) \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1696 | { \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1697 | struct uvcg_default_color_matching *dc = \ |
| 1698 | to_uvcg_default_color_matching(item); \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1699 | struct f_uvc_opts *opts; \ |
| 1700 | struct config_item *opts_item; \ |
| 1701 | struct mutex *su_mutex = &dc->group.cg_subsys->su_mutex; \ |
| 1702 | struct uvc_color_matching_descriptor *cd; \ |
| 1703 | int result; \ |
| 1704 | \ |
| 1705 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ \ |
| 1706 | \ |
| 1707 | opts_item = dc->group.cg_item.ci_parent->ci_parent->ci_parent; \ |
| 1708 | opts = to_f_uvc_opts(opts_item); \ |
| 1709 | cd = &opts->uvc_color_matching; \ |
| 1710 | \ |
| 1711 | mutex_lock(&opts->lock); \ |
| 1712 | result = sprintf(page, "%d\n", conv(cd->aname)); \ |
| 1713 | mutex_unlock(&opts->lock); \ |
| 1714 | \ |
| 1715 | mutex_unlock(su_mutex); \ |
| 1716 | return result; \ |
| 1717 | } \ |
| 1718 | \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1719 | UVC_ATTR_RO(uvcg_default_color_matching_, cname, aname) |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1720 | |
| 1721 | #define identity_conv(x) (x) |
| 1722 | |
| 1723 | UVCG_DEFAULT_COLOR_MATCHING_ATTR(b_color_primaries, bColorPrimaries, |
| 1724 | identity_conv); |
| 1725 | UVCG_DEFAULT_COLOR_MATCHING_ATTR(b_transfer_characteristics, |
| 1726 | bTransferCharacteristics, identity_conv); |
| 1727 | UVCG_DEFAULT_COLOR_MATCHING_ATTR(b_matrix_coefficients, bMatrixCoefficients, |
| 1728 | identity_conv); |
| 1729 | |
| 1730 | #undef identity_conv |
| 1731 | |
| 1732 | #undef UVCG_DEFAULT_COLOR_MATCHING_ATTR |
| 1733 | |
| 1734 | static struct configfs_attribute *uvcg_default_color_matching_attrs[] = { |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 1735 | &uvcg_default_color_matching_attr_b_color_primaries, |
| 1736 | &uvcg_default_color_matching_attr_b_transfer_characteristics, |
| 1737 | &uvcg_default_color_matching_attr_b_matrix_coefficients, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1738 | NULL, |
| 1739 | }; |
| 1740 | |
| 1741 | static struct config_item_type uvcg_default_color_matching_type = { |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1742 | .ct_attrs = uvcg_default_color_matching_attrs, |
| 1743 | .ct_owner = THIS_MODULE, |
| 1744 | }; |
| 1745 | |
| 1746 | /* struct uvcg_color_matching {}; */ |
| 1747 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1748 | /* streaming/color_matching */ |
| 1749 | static struct uvcg_color_matching_grp { |
| 1750 | struct config_group group; |
| 1751 | } uvcg_color_matching_grp; |
| 1752 | |
| 1753 | static struct config_item_type uvcg_color_matching_grp_type = { |
| 1754 | .ct_owner = THIS_MODULE, |
| 1755 | }; |
| 1756 | |
| 1757 | /* streaming/class/{fs|hs|ss} */ |
| 1758 | static struct uvcg_streaming_class { |
| 1759 | struct config_group group; |
| 1760 | } uvcg_streaming_class_fs, uvcg_streaming_class_hs, uvcg_streaming_class_ss; |
| 1761 | |
| 1762 | |
| 1763 | static inline struct uvc_descriptor_header |
| 1764 | ***__uvcg_get_stream_class_arr(struct config_item *i, struct f_uvc_opts *o) |
| 1765 | { |
| 1766 | struct uvcg_streaming_class *cl = container_of(to_config_group(i), |
| 1767 | struct uvcg_streaming_class, group); |
| 1768 | |
| 1769 | if (cl == &uvcg_streaming_class_fs) |
| 1770 | return &o->uvc_fs_streaming_cls; |
| 1771 | |
| 1772 | if (cl == &uvcg_streaming_class_hs) |
| 1773 | return &o->uvc_hs_streaming_cls; |
| 1774 | |
| 1775 | if (cl == &uvcg_streaming_class_ss) |
| 1776 | return &o->uvc_ss_streaming_cls; |
| 1777 | |
| 1778 | return NULL; |
| 1779 | } |
| 1780 | |
| 1781 | enum uvcg_strm_type { |
| 1782 | UVCG_HEADER = 0, |
| 1783 | UVCG_FORMAT, |
| 1784 | UVCG_FRAME |
| 1785 | }; |
| 1786 | |
Andrzej Pietrasiewicz | 578d0b6 | 2015-01-19 13:52:58 +0100 | [diff] [blame] | 1787 | /* |
| 1788 | * Iterate over a hierarchy of streaming descriptors' config items. |
| 1789 | * The items are created by the user with configfs. |
| 1790 | * |
| 1791 | * It "processes" the header pointed to by @priv1, then for each format |
| 1792 | * that follows the header "processes" the format itself and then for |
| 1793 | * each frame inside a format "processes" the frame. |
| 1794 | * |
| 1795 | * As a "processing" function the @fun is used. |
| 1796 | * |
| 1797 | * __uvcg_iter_strm_cls() is used in two context: first, to calculate |
| 1798 | * the amount of memory needed for an array of streaming descriptors |
| 1799 | * and second, to actually fill the array. |
| 1800 | * |
| 1801 | * @h: streaming header pointer |
| 1802 | * @priv2: an "inout" parameter (the caller might want to see the changes to it) |
| 1803 | * @priv3: an "inout" parameter (the caller might want to see the changes to it) |
| 1804 | * @fun: callback function for processing each level of the hierarchy |
| 1805 | */ |
Andrzej Pietrasiewicz | 7279683 | 2015-01-19 13:52:57 +0100 | [diff] [blame] | 1806 | static int __uvcg_iter_strm_cls(struct uvcg_streaming_header *h, |
| 1807 | void *priv2, void *priv3, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1808 | int (*fun)(void *, void *, void *, int, enum uvcg_strm_type type)) |
| 1809 | { |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1810 | struct uvcg_format_ptr *f; |
| 1811 | struct config_group *grp; |
| 1812 | struct config_item *item; |
| 1813 | struct uvcg_frame *frm; |
| 1814 | int ret, i, j; |
| 1815 | |
| 1816 | if (!fun) |
| 1817 | return -EINVAL; |
| 1818 | |
| 1819 | i = j = 0; |
| 1820 | ret = fun(h, priv2, priv3, 0, UVCG_HEADER); |
| 1821 | if (ret) |
| 1822 | return ret; |
| 1823 | list_for_each_entry(f, &h->formats, entry) { |
| 1824 | ret = fun(f->fmt, priv2, priv3, i++, UVCG_FORMAT); |
| 1825 | if (ret) |
| 1826 | return ret; |
| 1827 | grp = &f->fmt->group; |
| 1828 | list_for_each_entry(item, &grp->cg_children, ci_entry) { |
| 1829 | frm = to_uvcg_frame(item); |
| 1830 | ret = fun(frm, priv2, priv3, j++, UVCG_FRAME); |
| 1831 | if (ret) |
| 1832 | return ret; |
| 1833 | } |
| 1834 | } |
| 1835 | |
| 1836 | return ret; |
| 1837 | } |
| 1838 | |
Andrzej Pietrasiewicz | 578d0b6 | 2015-01-19 13:52:58 +0100 | [diff] [blame] | 1839 | /* |
| 1840 | * Count how many bytes are needed for an array of streaming descriptors. |
| 1841 | * |
| 1842 | * @priv1: pointer to a header, format or frame |
| 1843 | * @priv2: inout parameter, accumulated size of the array |
| 1844 | * @priv3: inout parameter, accumulated number of the array elements |
| 1845 | * @n: unused, this function's prototype must match @fun in __uvcg_iter_strm_cls |
| 1846 | */ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1847 | static int __uvcg_cnt_strm(void *priv1, void *priv2, void *priv3, int n, |
| 1848 | enum uvcg_strm_type type) |
| 1849 | { |
| 1850 | size_t *size = priv2; |
| 1851 | size_t *count = priv3; |
| 1852 | |
| 1853 | switch (type) { |
| 1854 | case UVCG_HEADER: { |
| 1855 | struct uvcg_streaming_header *h = priv1; |
| 1856 | |
| 1857 | *size += sizeof(h->desc); |
| 1858 | /* bmaControls */ |
| 1859 | *size += h->num_fmt * UVCG_STREAMING_CONTROL_SIZE; |
| 1860 | } |
| 1861 | break; |
| 1862 | case UVCG_FORMAT: { |
| 1863 | struct uvcg_format *fmt = priv1; |
| 1864 | |
| 1865 | if (fmt->type == UVCG_UNCOMPRESSED) { |
| 1866 | struct uvcg_uncompressed *u = |
| 1867 | container_of(fmt, struct uvcg_uncompressed, |
| 1868 | fmt); |
| 1869 | |
| 1870 | *size += sizeof(u->desc); |
| 1871 | } else if (fmt->type == UVCG_MJPEG) { |
| 1872 | struct uvcg_mjpeg *m = |
| 1873 | container_of(fmt, struct uvcg_mjpeg, fmt); |
| 1874 | |
| 1875 | *size += sizeof(m->desc); |
| 1876 | } else { |
| 1877 | return -EINVAL; |
| 1878 | } |
| 1879 | } |
| 1880 | break; |
| 1881 | case UVCG_FRAME: { |
| 1882 | struct uvcg_frame *frm = priv1; |
| 1883 | int sz = sizeof(frm->dw_frame_interval); |
| 1884 | |
| 1885 | *size += sizeof(frm->frame); |
| 1886 | *size += frm->frame.b_frame_interval_type * sz; |
| 1887 | } |
| 1888 | break; |
| 1889 | } |
| 1890 | |
| 1891 | ++*count; |
| 1892 | |
| 1893 | return 0; |
| 1894 | } |
| 1895 | |
Andrzej Pietrasiewicz | 578d0b6 | 2015-01-19 13:52:58 +0100 | [diff] [blame] | 1896 | /* |
| 1897 | * Fill an array of streaming descriptors. |
| 1898 | * |
| 1899 | * @priv1: pointer to a header, format or frame |
| 1900 | * @priv2: inout parameter, pointer into a block of memory |
| 1901 | * @priv3: inout parameter, pointer to a 2-dimensional array |
| 1902 | */ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1903 | static int __uvcg_fill_strm(void *priv1, void *priv2, void *priv3, int n, |
| 1904 | enum uvcg_strm_type type) |
| 1905 | { |
| 1906 | void **dest = priv2; |
| 1907 | struct uvc_descriptor_header ***array = priv3; |
| 1908 | size_t sz; |
| 1909 | |
| 1910 | **array = *dest; |
| 1911 | ++*array; |
| 1912 | |
| 1913 | switch (type) { |
| 1914 | case UVCG_HEADER: { |
| 1915 | struct uvc_input_header_descriptor *ihdr = *dest; |
| 1916 | struct uvcg_streaming_header *h = priv1; |
| 1917 | struct uvcg_format_ptr *f; |
| 1918 | |
| 1919 | memcpy(*dest, &h->desc, sizeof(h->desc)); |
| 1920 | *dest += sizeof(h->desc); |
| 1921 | sz = UVCG_STREAMING_CONTROL_SIZE; |
| 1922 | list_for_each_entry(f, &h->formats, entry) { |
| 1923 | memcpy(*dest, f->fmt->bmaControls, sz); |
| 1924 | *dest += sz; |
| 1925 | } |
| 1926 | ihdr->bLength = sizeof(h->desc) + h->num_fmt * sz; |
| 1927 | ihdr->bNumFormats = h->num_fmt; |
| 1928 | } |
| 1929 | break; |
| 1930 | case UVCG_FORMAT: { |
| 1931 | struct uvcg_format *fmt = priv1; |
| 1932 | |
| 1933 | if (fmt->type == UVCG_UNCOMPRESSED) { |
| 1934 | struct uvc_format_uncompressed *unc = *dest; |
| 1935 | struct uvcg_uncompressed *u = |
| 1936 | container_of(fmt, struct uvcg_uncompressed, |
| 1937 | fmt); |
| 1938 | |
| 1939 | memcpy(*dest, &u->desc, sizeof(u->desc)); |
| 1940 | *dest += sizeof(u->desc); |
| 1941 | unc->bNumFrameDescriptors = fmt->num_frames; |
| 1942 | unc->bFormatIndex = n + 1; |
| 1943 | } else if (fmt->type == UVCG_MJPEG) { |
| 1944 | struct uvc_format_mjpeg *mjp = *dest; |
| 1945 | struct uvcg_mjpeg *m = |
| 1946 | container_of(fmt, struct uvcg_mjpeg, fmt); |
| 1947 | |
| 1948 | memcpy(*dest, &m->desc, sizeof(m->desc)); |
| 1949 | *dest += sizeof(m->desc); |
| 1950 | mjp->bNumFrameDescriptors = fmt->num_frames; |
| 1951 | mjp->bFormatIndex = n + 1; |
| 1952 | } else { |
| 1953 | return -EINVAL; |
| 1954 | } |
| 1955 | } |
| 1956 | break; |
| 1957 | case UVCG_FRAME: { |
| 1958 | struct uvcg_frame *frm = priv1; |
| 1959 | struct uvc_descriptor_header *h = *dest; |
| 1960 | |
| 1961 | sz = sizeof(frm->frame); |
| 1962 | memcpy(*dest, &frm->frame, sz); |
| 1963 | *dest += sz; |
| 1964 | sz = frm->frame.b_frame_interval_type * |
| 1965 | sizeof(*frm->dw_frame_interval); |
| 1966 | memcpy(*dest, frm->dw_frame_interval, sz); |
| 1967 | *dest += sz; |
| 1968 | if (frm->fmt_type == UVCG_UNCOMPRESSED) |
| 1969 | h->bLength = UVC_DT_FRAME_UNCOMPRESSED_SIZE( |
| 1970 | frm->frame.b_frame_interval_type); |
| 1971 | else if (frm->fmt_type == UVCG_MJPEG) |
| 1972 | h->bLength = UVC_DT_FRAME_MJPEG_SIZE( |
| 1973 | frm->frame.b_frame_interval_type); |
| 1974 | } |
| 1975 | break; |
| 1976 | } |
| 1977 | |
| 1978 | return 0; |
| 1979 | } |
| 1980 | |
| 1981 | static int uvcg_streaming_class_allow_link(struct config_item *src, |
| 1982 | struct config_item *target) |
| 1983 | { |
| 1984 | struct config_item *streaming, *header; |
| 1985 | struct f_uvc_opts *opts; |
| 1986 | struct mutex *su_mutex = &src->ci_group->cg_subsys->su_mutex; |
| 1987 | struct uvc_descriptor_header ***class_array, **cl_arr; |
| 1988 | struct uvcg_streaming_header *target_hdr; |
Andrzej Pietrasiewicz | 06ab8b0 | 2015-01-16 15:14:27 +0100 | [diff] [blame] | 1989 | void *data, *data_save; |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 1990 | size_t size = 0, count = 0; |
| 1991 | int ret = -EINVAL; |
| 1992 | |
| 1993 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ |
| 1994 | |
| 1995 | streaming = src->ci_parent->ci_parent; |
| 1996 | header = config_group_find_item(to_config_group(streaming), "header"); |
| 1997 | if (!header || target->ci_parent != header) |
| 1998 | goto out; |
| 1999 | |
| 2000 | opts = to_f_uvc_opts(streaming->ci_parent); |
| 2001 | |
| 2002 | mutex_lock(&opts->lock); |
| 2003 | |
| 2004 | class_array = __uvcg_get_stream_class_arr(src, opts); |
| 2005 | if (!class_array || *class_array || opts->refcnt) { |
| 2006 | ret = -EBUSY; |
| 2007 | goto unlock; |
| 2008 | } |
| 2009 | |
| 2010 | target_hdr = to_uvcg_streaming_header(target); |
| 2011 | ret = __uvcg_iter_strm_cls(target_hdr, &size, &count, __uvcg_cnt_strm); |
| 2012 | if (ret) |
| 2013 | goto unlock; |
| 2014 | |
| 2015 | count += 2; /* color_matching, NULL */ |
| 2016 | *class_array = kcalloc(count, sizeof(void *), GFP_KERNEL); |
| 2017 | if (!*class_array) { |
Dan Carpenter | df90f83 | 2015-01-14 23:59:48 +0300 | [diff] [blame] | 2018 | ret = -ENOMEM; |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2019 | goto unlock; |
| 2020 | } |
| 2021 | |
Andrzej Pietrasiewicz | 06ab8b0 | 2015-01-16 15:14:27 +0100 | [diff] [blame] | 2022 | data = data_save = kzalloc(size, GFP_KERNEL); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2023 | if (!data) { |
| 2024 | kfree(*class_array); |
| 2025 | *class_array = NULL; |
Christophe JAILLET | bd610c5 | 2016-07-16 09:04:40 +0200 | [diff] [blame] | 2026 | ret = -ENOMEM; |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2027 | goto unlock; |
| 2028 | } |
| 2029 | cl_arr = *class_array; |
| 2030 | ret = __uvcg_iter_strm_cls(target_hdr, &data, &cl_arr, |
| 2031 | __uvcg_fill_strm); |
| 2032 | if (ret) { |
| 2033 | kfree(*class_array); |
| 2034 | *class_array = NULL; |
Andrzej Pietrasiewicz | 06ab8b0 | 2015-01-16 15:14:27 +0100 | [diff] [blame] | 2035 | /* |
| 2036 | * __uvcg_fill_strm() called from __uvcg_iter_stream_cls() |
| 2037 | * might have advanced the "data", so use a backup copy |
| 2038 | */ |
| 2039 | kfree(data_save); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2040 | goto unlock; |
| 2041 | } |
| 2042 | *cl_arr = (struct uvc_descriptor_header *)&opts->uvc_color_matching; |
| 2043 | |
| 2044 | ++target_hdr->linked; |
| 2045 | ret = 0; |
| 2046 | |
| 2047 | unlock: |
| 2048 | mutex_unlock(&opts->lock); |
| 2049 | out: |
| 2050 | mutex_unlock(su_mutex); |
| 2051 | return ret; |
| 2052 | } |
| 2053 | |
| 2054 | static int uvcg_streaming_class_drop_link(struct config_item *src, |
| 2055 | struct config_item *target) |
| 2056 | { |
| 2057 | struct config_item *streaming, *header; |
| 2058 | struct f_uvc_opts *opts; |
| 2059 | struct mutex *su_mutex = &src->ci_group->cg_subsys->su_mutex; |
| 2060 | struct uvc_descriptor_header ***class_array; |
| 2061 | struct uvcg_streaming_header *target_hdr; |
| 2062 | int ret = -EINVAL; |
| 2063 | |
| 2064 | mutex_lock(su_mutex); /* for navigating configfs hierarchy */ |
| 2065 | |
| 2066 | streaming = src->ci_parent->ci_parent; |
| 2067 | header = config_group_find_item(to_config_group(streaming), "header"); |
| 2068 | if (!header || target->ci_parent != header) |
| 2069 | goto out; |
| 2070 | |
| 2071 | opts = to_f_uvc_opts(streaming->ci_parent); |
| 2072 | |
| 2073 | mutex_lock(&opts->lock); |
| 2074 | |
| 2075 | class_array = __uvcg_get_stream_class_arr(src, opts); |
| 2076 | if (!class_array || !*class_array) |
| 2077 | goto unlock; |
| 2078 | |
| 2079 | if (opts->refcnt) { |
| 2080 | ret = -EBUSY; |
| 2081 | goto unlock; |
| 2082 | } |
| 2083 | |
| 2084 | target_hdr = to_uvcg_streaming_header(target); |
| 2085 | --target_hdr->linked; |
| 2086 | kfree(**class_array); |
| 2087 | kfree(*class_array); |
| 2088 | *class_array = NULL; |
| 2089 | ret = 0; |
| 2090 | |
| 2091 | unlock: |
| 2092 | mutex_unlock(&opts->lock); |
| 2093 | out: |
| 2094 | mutex_unlock(su_mutex); |
| 2095 | return ret; |
| 2096 | } |
| 2097 | |
| 2098 | static struct configfs_item_operations uvcg_streaming_class_item_ops = { |
| 2099 | .allow_link = uvcg_streaming_class_allow_link, |
| 2100 | .drop_link = uvcg_streaming_class_drop_link, |
| 2101 | }; |
| 2102 | |
| 2103 | static struct config_item_type uvcg_streaming_class_type = { |
| 2104 | .ct_item_ops = &uvcg_streaming_class_item_ops, |
| 2105 | .ct_owner = THIS_MODULE, |
| 2106 | }; |
| 2107 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2108 | /* streaming/class */ |
| 2109 | static struct uvcg_streaming_class_grp { |
| 2110 | struct config_group group; |
| 2111 | } uvcg_streaming_class_grp; |
| 2112 | |
| 2113 | static struct config_item_type uvcg_streaming_class_grp_type = { |
| 2114 | .ct_owner = THIS_MODULE, |
| 2115 | }; |
| 2116 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2117 | /* streaming */ |
| 2118 | static struct uvcg_streaming_grp { |
| 2119 | struct config_group group; |
| 2120 | } uvcg_streaming_grp; |
| 2121 | |
| 2122 | static struct config_item_type uvcg_streaming_grp_type = { |
| 2123 | .ct_owner = THIS_MODULE, |
| 2124 | }; |
| 2125 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2126 | static inline struct f_uvc_opts *to_f_uvc_opts(struct config_item *item) |
| 2127 | { |
| 2128 | return container_of(to_config_group(item), struct f_uvc_opts, |
| 2129 | func_inst.group); |
| 2130 | } |
| 2131 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2132 | static void uvc_attr_release(struct config_item *item) |
| 2133 | { |
| 2134 | struct f_uvc_opts *opts = to_f_uvc_opts(item); |
| 2135 | |
| 2136 | usb_put_function_instance(&opts->func_inst); |
| 2137 | } |
| 2138 | |
| 2139 | static struct configfs_item_operations uvc_item_ops = { |
| 2140 | .release = uvc_attr_release, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2141 | }; |
| 2142 | |
| 2143 | #define UVCG_OPTS_ATTR(cname, conv, str2u, uxx, vnoc, limit) \ |
| 2144 | static ssize_t f_uvc_opts_##cname##_show( \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 2145 | struct config_item *item, char *page) \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2146 | { \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 2147 | struct f_uvc_opts *opts = to_f_uvc_opts(item); \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2148 | int result; \ |
| 2149 | \ |
| 2150 | mutex_lock(&opts->lock); \ |
| 2151 | result = sprintf(page, "%d\n", conv(opts->cname)); \ |
| 2152 | mutex_unlock(&opts->lock); \ |
| 2153 | \ |
| 2154 | return result; \ |
| 2155 | } \ |
| 2156 | \ |
| 2157 | static ssize_t \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 2158 | f_uvc_opts_##cname##_store(struct config_item *item, \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2159 | const char *page, size_t len) \ |
| 2160 | { \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 2161 | struct f_uvc_opts *opts = to_f_uvc_opts(item); \ |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2162 | int ret; \ |
| 2163 | uxx num; \ |
| 2164 | \ |
| 2165 | mutex_lock(&opts->lock); \ |
| 2166 | if (opts->refcnt) { \ |
| 2167 | ret = -EBUSY; \ |
| 2168 | goto end; \ |
| 2169 | } \ |
| 2170 | \ |
| 2171 | ret = str2u(page, 0, &num); \ |
| 2172 | if (ret) \ |
| 2173 | goto end; \ |
| 2174 | \ |
| 2175 | if (num > limit) { \ |
| 2176 | ret = -EINVAL; \ |
| 2177 | goto end; \ |
| 2178 | } \ |
| 2179 | opts->cname = vnoc(num); \ |
| 2180 | ret = len; \ |
| 2181 | end: \ |
| 2182 | mutex_unlock(&opts->lock); \ |
| 2183 | return ret; \ |
| 2184 | } \ |
| 2185 | \ |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 2186 | UVC_ATTR(f_uvc_opts_, cname, aname) |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2187 | |
| 2188 | #define identity_conv(x) (x) |
| 2189 | |
| 2190 | UVCG_OPTS_ATTR(streaming_interval, identity_conv, kstrtou8, u8, identity_conv, |
| 2191 | 16); |
| 2192 | UVCG_OPTS_ATTR(streaming_maxpacket, le16_to_cpu, kstrtou16, u16, le16_to_cpu, |
| 2193 | 3072); |
| 2194 | UVCG_OPTS_ATTR(streaming_maxburst, identity_conv, kstrtou8, u8, identity_conv, |
| 2195 | 15); |
| 2196 | |
| 2197 | #undef identity_conv |
| 2198 | |
| 2199 | #undef UVCG_OPTS_ATTR |
| 2200 | |
| 2201 | static struct configfs_attribute *uvc_attrs[] = { |
Christoph Hellwig | 76e0da3 | 2015-10-03 15:32:39 +0200 | [diff] [blame] | 2202 | &f_uvc_opts_attr_streaming_interval, |
| 2203 | &f_uvc_opts_attr_streaming_maxpacket, |
| 2204 | &f_uvc_opts_attr_streaming_maxburst, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2205 | NULL, |
| 2206 | }; |
| 2207 | |
| 2208 | static struct config_item_type uvc_func_type = { |
| 2209 | .ct_item_ops = &uvc_item_ops, |
| 2210 | .ct_attrs = uvc_attrs, |
| 2211 | .ct_owner = THIS_MODULE, |
| 2212 | }; |
| 2213 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2214 | int uvcg_attach_configfs(struct f_uvc_opts *opts) |
| 2215 | { |
| 2216 | config_group_init_type_name(&uvcg_control_header_grp.group, |
| 2217 | "header", |
| 2218 | &uvcg_control_header_grp_type); |
Christoph Hellwig | 1ae1602 | 2016-02-26 11:02:14 +0100 | [diff] [blame] | 2219 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2220 | config_group_init_type_name(&uvcg_default_processing.group, |
Christoph Hellwig | 1ae1602 | 2016-02-26 11:02:14 +0100 | [diff] [blame] | 2221 | "default", &uvcg_default_processing_type); |
| 2222 | config_group_init_type_name(&uvcg_processing_grp.group, |
| 2223 | "processing", &uvcg_processing_grp_type); |
| 2224 | configfs_add_default_group(&uvcg_default_processing.group, |
| 2225 | &uvcg_processing_grp.group); |
| 2226 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2227 | config_group_init_type_name(&uvcg_default_camera.group, |
Christoph Hellwig | 1ae1602 | 2016-02-26 11:02:14 +0100 | [diff] [blame] | 2228 | "default", &uvcg_default_camera_type); |
| 2229 | config_group_init_type_name(&uvcg_camera_grp.group, |
| 2230 | "camera", &uvcg_camera_grp_type); |
| 2231 | configfs_add_default_group(&uvcg_default_camera.group, |
| 2232 | &uvcg_camera_grp.group); |
| 2233 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2234 | config_group_init_type_name(&uvcg_default_output.group, |
Christoph Hellwig | 1ae1602 | 2016-02-26 11:02:14 +0100 | [diff] [blame] | 2235 | "default", &uvcg_default_output_type); |
| 2236 | config_group_init_type_name(&uvcg_output_grp.group, |
| 2237 | "output", &uvcg_output_grp_type); |
| 2238 | configfs_add_default_group(&uvcg_default_output.group, |
| 2239 | &uvcg_output_grp.group); |
| 2240 | |
| 2241 | config_group_init_type_name(&uvcg_terminal_grp.group, |
| 2242 | "terminal", &uvcg_terminal_grp_type); |
| 2243 | configfs_add_default_group(&uvcg_camera_grp.group, |
| 2244 | &uvcg_terminal_grp.group); |
| 2245 | configfs_add_default_group(&uvcg_output_grp.group, |
| 2246 | &uvcg_terminal_grp.group); |
| 2247 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2248 | config_group_init_type_name(&uvcg_control_class_fs.group, |
Christoph Hellwig | 1ae1602 | 2016-02-26 11:02:14 +0100 | [diff] [blame] | 2249 | "fs", &uvcg_control_class_type); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2250 | config_group_init_type_name(&uvcg_control_class_ss.group, |
Christoph Hellwig | 1ae1602 | 2016-02-26 11:02:14 +0100 | [diff] [blame] | 2251 | "ss", &uvcg_control_class_type); |
| 2252 | config_group_init_type_name(&uvcg_control_class_grp.group, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2253 | "class", |
| 2254 | &uvcg_control_class_grp_type); |
Christoph Hellwig | 1ae1602 | 2016-02-26 11:02:14 +0100 | [diff] [blame] | 2255 | configfs_add_default_group(&uvcg_control_class_fs.group, |
| 2256 | &uvcg_control_class_grp.group); |
| 2257 | configfs_add_default_group(&uvcg_control_class_ss.group, |
| 2258 | &uvcg_control_class_grp.group); |
| 2259 | |
| 2260 | config_group_init_type_name(&uvcg_control_grp.group, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2261 | "control", |
| 2262 | &uvcg_control_grp_type); |
Christoph Hellwig | 1ae1602 | 2016-02-26 11:02:14 +0100 | [diff] [blame] | 2263 | configfs_add_default_group(&uvcg_control_header_grp.group, |
| 2264 | &uvcg_control_grp.group); |
| 2265 | configfs_add_default_group(&uvcg_processing_grp.group, |
| 2266 | &uvcg_control_grp.group); |
| 2267 | configfs_add_default_group(&uvcg_terminal_grp.group, |
| 2268 | &uvcg_control_grp.group); |
| 2269 | configfs_add_default_group(&uvcg_control_class_grp.group, |
| 2270 | &uvcg_control_grp.group); |
| 2271 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2272 | config_group_init_type_name(&uvcg_streaming_header_grp.group, |
| 2273 | "header", |
| 2274 | &uvcg_streaming_header_grp_type); |
| 2275 | config_group_init_type_name(&uvcg_uncompressed_grp.group, |
| 2276 | "uncompressed", |
| 2277 | &uvcg_uncompressed_grp_type); |
| 2278 | config_group_init_type_name(&uvcg_mjpeg_grp.group, |
| 2279 | "mjpeg", |
| 2280 | &uvcg_mjpeg_grp_type); |
| 2281 | config_group_init_type_name(&uvcg_default_color_matching.group, |
| 2282 | "default", |
| 2283 | &uvcg_default_color_matching_type); |
Christoph Hellwig | 1ae1602 | 2016-02-26 11:02:14 +0100 | [diff] [blame] | 2284 | config_group_init_type_name(&uvcg_color_matching_grp.group, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2285 | "color_matching", |
| 2286 | &uvcg_color_matching_grp_type); |
Christoph Hellwig | 1ae1602 | 2016-02-26 11:02:14 +0100 | [diff] [blame] | 2287 | configfs_add_default_group(&uvcg_default_color_matching.group, |
| 2288 | &uvcg_color_matching_grp.group); |
| 2289 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2290 | config_group_init_type_name(&uvcg_streaming_class_fs.group, |
Christoph Hellwig | 1ae1602 | 2016-02-26 11:02:14 +0100 | [diff] [blame] | 2291 | "fs", &uvcg_streaming_class_type); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2292 | config_group_init_type_name(&uvcg_streaming_class_hs.group, |
Christoph Hellwig | 1ae1602 | 2016-02-26 11:02:14 +0100 | [diff] [blame] | 2293 | "hs", &uvcg_streaming_class_type); |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2294 | config_group_init_type_name(&uvcg_streaming_class_ss.group, |
Christoph Hellwig | 1ae1602 | 2016-02-26 11:02:14 +0100 | [diff] [blame] | 2295 | "ss", &uvcg_streaming_class_type); |
| 2296 | config_group_init_type_name(&uvcg_streaming_class_grp.group, |
| 2297 | "class", &uvcg_streaming_class_grp_type); |
| 2298 | configfs_add_default_group(&uvcg_streaming_class_fs.group, |
| 2299 | &uvcg_streaming_class_grp.group); |
| 2300 | configfs_add_default_group(&uvcg_streaming_class_hs.group, |
| 2301 | &uvcg_streaming_class_grp.group); |
| 2302 | configfs_add_default_group(&uvcg_streaming_class_ss.group, |
| 2303 | &uvcg_streaming_class_grp.group); |
| 2304 | |
| 2305 | config_group_init_type_name(&uvcg_streaming_grp.group, |
| 2306 | "streaming", &uvcg_streaming_grp_type); |
| 2307 | configfs_add_default_group(&uvcg_streaming_header_grp.group, |
| 2308 | &uvcg_streaming_grp.group); |
| 2309 | configfs_add_default_group(&uvcg_uncompressed_grp.group, |
| 2310 | &uvcg_streaming_grp.group); |
| 2311 | configfs_add_default_group(&uvcg_mjpeg_grp.group, |
| 2312 | &uvcg_streaming_grp.group); |
| 2313 | configfs_add_default_group(&uvcg_color_matching_grp.group, |
| 2314 | &uvcg_streaming_grp.group); |
| 2315 | configfs_add_default_group(&uvcg_streaming_class_grp.group, |
| 2316 | &uvcg_streaming_grp.group); |
| 2317 | |
| 2318 | config_group_init_type_name(&opts->func_inst.group, |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2319 | "", |
| 2320 | &uvc_func_type); |
Christoph Hellwig | 1ae1602 | 2016-02-26 11:02:14 +0100 | [diff] [blame] | 2321 | configfs_add_default_group(&uvcg_control_grp.group, |
| 2322 | &opts->func_inst.group); |
| 2323 | configfs_add_default_group(&uvcg_streaming_grp.group, |
| 2324 | &opts->func_inst.group); |
| 2325 | |
Andrzej Pietrasiewicz | 46919a2 | 2014-12-10 12:34:02 +0100 | [diff] [blame] | 2326 | return 0; |
| 2327 | } |