David Kiliani | 3fedd14 | 2008-11-01 00:39:12 +0100 | [diff] [blame] | 1 | /** |
| 2 | * @file mesubdevice.c |
| 3 | * |
| 4 | * @brief Subdevice base class implemention. |
| 5 | * @note Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de) |
| 6 | * @author Guenter Gebhardt |
| 7 | */ |
| 8 | |
| 9 | /* |
| 10 | * This file is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License, or |
| 13 | * (at your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License |
| 21 | * along with this program; if not, write to the Free Software |
| 22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 23 | */ |
| 24 | |
| 25 | #ifndef __KERNEL__ |
| 26 | # define __KERNEL__ |
| 27 | #endif |
| 28 | |
| 29 | #include <linux/slab.h> |
| 30 | |
| 31 | #include "medefines.h" |
| 32 | #include "meerror.h" |
| 33 | |
| 34 | #include "medebug.h" |
| 35 | #include "mesubdevice.h" |
| 36 | |
| 37 | static int me_subdevice_io_irq_start(struct me_subdevice *subdevice, |
| 38 | struct file *filep, |
| 39 | int channel, |
| 40 | int irq_source, |
| 41 | int irq_edge, int irq_arg, int flags) |
| 42 | { |
| 43 | PDEBUG("executed.\n"); |
| 44 | return ME_ERRNO_NOT_SUPPORTED; |
| 45 | } |
| 46 | |
| 47 | static int me_subdevice_io_irq_wait(struct me_subdevice *subdevice, |
| 48 | struct file *filep, |
| 49 | int channel, |
| 50 | int *irq_count, |
| 51 | int *value, int time_out, int flags) |
| 52 | { |
| 53 | PDEBUG("executed.\n"); |
| 54 | return ME_ERRNO_NOT_SUPPORTED; |
| 55 | } |
| 56 | |
| 57 | static int me_subdevice_io_irq_stop(struct me_subdevice *subdevice, |
| 58 | struct file *filep, int channel, int flags) |
| 59 | { |
| 60 | PDEBUG("executed.\n"); |
| 61 | return ME_ERRNO_NOT_SUPPORTED; |
| 62 | } |
| 63 | |
| 64 | static int me_subdevice_io_reset_subdevice(struct me_subdevice *subdevice, |
| 65 | struct file *filep, int flags) |
| 66 | { |
| 67 | PDEBUG("executed.\n"); |
| 68 | return ME_ERRNO_NOT_SUPPORTED; |
| 69 | } |
| 70 | |
| 71 | static int me_subdevice_io_single_config(struct me_subdevice *subdevice, |
| 72 | struct file *filep, |
| 73 | int channel, |
| 74 | int single_config, |
| 75 | int ref, |
| 76 | int trig_chan, |
| 77 | int trig_type, |
| 78 | int trig_edge, int flags) |
| 79 | { |
| 80 | PDEBUG("executed.\n"); |
| 81 | return ME_ERRNO_NOT_SUPPORTED; |
| 82 | } |
| 83 | |
| 84 | static int me_subdevice_io_single_read(struct me_subdevice *subdevice, |
| 85 | struct file *filep, |
| 86 | int channel, |
| 87 | int *value, int time_out, int flags) |
| 88 | { |
| 89 | PDEBUG("executed.\n"); |
| 90 | return ME_ERRNO_NOT_SUPPORTED; |
| 91 | } |
| 92 | |
| 93 | static int me_subdevice_io_single_write(struct me_subdevice *subdevice, |
| 94 | struct file *filep, |
| 95 | int channel, |
| 96 | int value, int time_out, int flags) |
| 97 | { |
| 98 | PDEBUG("executed.\n"); |
| 99 | return ME_ERRNO_NOT_SUPPORTED; |
| 100 | } |
| 101 | |
| 102 | static int me_subdevice_io_stream_config(struct me_subdevice *subdevice, |
| 103 | struct file *filep, |
| 104 | meIOStreamConfig_t * config_list, |
| 105 | int count, |
| 106 | meIOStreamTrigger_t * trigger, |
| 107 | int fifo_irq_threshold, int flags) |
| 108 | { |
| 109 | PDEBUG("executed.\n"); |
| 110 | return ME_ERRNO_NOT_SUPPORTED; |
| 111 | } |
| 112 | |
| 113 | static int me_subdevice_io_stream_new_values(struct me_subdevice *subdevice, |
| 114 | struct file *filep, |
| 115 | int time_out, |
| 116 | int *count, int flags) |
| 117 | { |
| 118 | PDEBUG("executed.\n"); |
| 119 | return ME_ERRNO_NOT_SUPPORTED; |
| 120 | } |
| 121 | |
| 122 | static int me_subdevice_io_stream_read(struct me_subdevice *subdevice, |
| 123 | struct file *filep, |
| 124 | int read_mode, |
| 125 | int *values, int *count, int flags) |
| 126 | { |
| 127 | PDEBUG("executed.\n"); |
| 128 | return ME_ERRNO_NOT_SUPPORTED; |
| 129 | } |
| 130 | |
| 131 | static int me_subdevice_io_stream_start(struct me_subdevice *subdevice, |
| 132 | struct file *filep, |
| 133 | int start_mode, int time_out, int flags) |
| 134 | { |
| 135 | PDEBUG("executed.\n"); |
| 136 | return ME_ERRNO_NOT_SUPPORTED; |
| 137 | } |
| 138 | |
| 139 | static int me_subdevice_io_stream_status(struct me_subdevice *subdevice, |
| 140 | struct file *filep, |
| 141 | int wait, |
| 142 | int *status, int *count, int flags) |
| 143 | { |
| 144 | PDEBUG("executed.\n"); |
| 145 | return ME_ERRNO_NOT_SUPPORTED; |
| 146 | } |
| 147 | |
| 148 | static int me_subdevice_io_stream_stop(struct me_subdevice *subdevice, |
| 149 | struct file *filep, |
| 150 | int stop_mode, int flags) |
| 151 | { |
| 152 | PDEBUG("executed.\n"); |
| 153 | return ME_ERRNO_NOT_SUPPORTED; |
| 154 | } |
| 155 | |
| 156 | static int me_subdevice_io_stream_write(struct me_subdevice *subdevice, |
| 157 | struct file *filep, |
| 158 | int write_mode, |
| 159 | int *values, int *count, int flags) |
| 160 | { |
| 161 | PDEBUG("executed.\n"); |
| 162 | return ME_ERRNO_NOT_SUPPORTED; |
| 163 | } |
| 164 | |
| 165 | static int me_subdevice_lock_subdevice(me_subdevice_t * subdevice, |
| 166 | struct file *filep, int lock, int flags) |
| 167 | { |
| 168 | PDEBUG("executed.\n"); |
| 169 | return me_slock_lock(&subdevice->lock, filep, lock); |
| 170 | } |
| 171 | |
| 172 | static int me_subdevice_query_number_channels(struct me_subdevice *subdevice, |
| 173 | int *number) |
| 174 | { |
| 175 | PDEBUG("executed.\n"); |
| 176 | return ME_ERRNO_NOT_SUPPORTED; |
| 177 | } |
| 178 | |
| 179 | static int me_subdevice_query_number_ranges(struct me_subdevice *subdevice, |
| 180 | int unit, int *count) |
| 181 | { |
| 182 | PDEBUG("executed.\n"); |
| 183 | return ME_ERRNO_NOT_SUPPORTED; |
| 184 | } |
| 185 | |
| 186 | static int me_subdevice_query_range_by_min_max(struct me_subdevice *subdevice, |
| 187 | int unit, |
| 188 | int *min, |
| 189 | int *max, |
| 190 | int *maxdata, int *range) |
| 191 | { |
| 192 | PDEBUG("executed.\n"); |
| 193 | return ME_ERRNO_NOT_SUPPORTED; |
| 194 | } |
| 195 | |
| 196 | static int me_subdevice_query_range_info(struct me_subdevice *subdevice, |
| 197 | int range, |
| 198 | int *unit, |
| 199 | int *min, int *max, int *maxdata) |
| 200 | { |
| 201 | PDEBUG("executed.\n"); |
| 202 | return ME_ERRNO_NOT_SUPPORTED; |
| 203 | } |
| 204 | |
| 205 | static int me_subdevice_query_subdevice_type(struct me_subdevice *subdevice, |
| 206 | int *type, int *subtype) |
| 207 | { |
| 208 | PDEBUG("executed.\n"); |
| 209 | return ME_ERRNO_NOT_SUPPORTED; |
| 210 | } |
| 211 | |
| 212 | static int me_subdevice_query_subdevice_caps(struct me_subdevice *subdevice, |
| 213 | int *caps) |
| 214 | { |
| 215 | PDEBUG("executed.\n"); |
| 216 | *caps = 0; |
| 217 | return ME_ERRNO_SUCCESS; |
| 218 | } |
| 219 | |
| 220 | static int me_subdevice_query_subdevice_caps_args(struct me_subdevice |
| 221 | *subdevice, int cap, |
| 222 | int *args, int count) |
| 223 | { |
| 224 | PDEBUG("executed.\n"); |
| 225 | return ME_ERRNO_NOT_SUPPORTED; |
| 226 | } |
| 227 | |
| 228 | static int me_subdevice_query_timer(struct me_subdevice *subdevice, |
| 229 | int timer, |
| 230 | int *base_frequency, |
| 231 | long long *min_ticks, long long *max_ticks) |
| 232 | { |
| 233 | PDEBUG("executed.\n"); |
| 234 | return ME_ERRNO_NOT_SUPPORTED; |
| 235 | } |
| 236 | |
| 237 | static int me_subdevice_config_load(struct me_subdevice *subdevice, |
| 238 | me_cfg_device_entry_t * config) |
| 239 | { |
| 240 | PDEBUG("executed.\n"); |
| 241 | return ME_ERRNO_SUCCESS; |
| 242 | } |
| 243 | |
| 244 | static void me_subdevice_destructor(struct me_subdevice *subdevice) |
| 245 | { |
| 246 | PDEBUG("executed.\n"); |
| 247 | me_subdevice_deinit(subdevice); |
| 248 | kfree(subdevice); |
| 249 | } |
| 250 | |
| 251 | int me_subdevice_init(me_subdevice_t * subdevice) |
| 252 | { |
| 253 | int err; |
| 254 | |
| 255 | PDEBUG("executed.\n"); |
| 256 | |
| 257 | /* Init list head */ |
| 258 | INIT_LIST_HEAD(&subdevice->list); |
| 259 | |
| 260 | /* Initialize the subdevice lock instance */ |
| 261 | |
| 262 | err = me_slock_init(&subdevice->lock); |
| 263 | |
| 264 | if (err) { |
| 265 | PERROR("Cannot initialize subdevice lock instance.\n"); |
| 266 | return 1; |
| 267 | } |
| 268 | |
| 269 | /* Subdevice base class methods */ |
| 270 | subdevice->me_subdevice_io_irq_start = me_subdevice_io_irq_start; |
| 271 | subdevice->me_subdevice_io_irq_wait = me_subdevice_io_irq_wait; |
| 272 | subdevice->me_subdevice_io_irq_stop = me_subdevice_io_irq_stop; |
| 273 | subdevice->me_subdevice_io_reset_subdevice = |
| 274 | me_subdevice_io_reset_subdevice; |
| 275 | subdevice->me_subdevice_io_single_config = |
| 276 | me_subdevice_io_single_config; |
| 277 | subdevice->me_subdevice_io_single_read = me_subdevice_io_single_read; |
| 278 | subdevice->me_subdevice_io_single_write = me_subdevice_io_single_write; |
| 279 | subdevice->me_subdevice_io_stream_config = |
| 280 | me_subdevice_io_stream_config; |
| 281 | subdevice->me_subdevice_io_stream_new_values = |
| 282 | me_subdevice_io_stream_new_values; |
| 283 | subdevice->me_subdevice_io_stream_read = me_subdevice_io_stream_read; |
| 284 | subdevice->me_subdevice_io_stream_start = me_subdevice_io_stream_start; |
| 285 | subdevice->me_subdevice_io_stream_status = |
| 286 | me_subdevice_io_stream_status; |
| 287 | subdevice->me_subdevice_io_stream_stop = me_subdevice_io_stream_stop; |
| 288 | subdevice->me_subdevice_io_stream_write = me_subdevice_io_stream_write; |
| 289 | subdevice->me_subdevice_lock_subdevice = me_subdevice_lock_subdevice; |
| 290 | subdevice->me_subdevice_query_number_channels = |
| 291 | me_subdevice_query_number_channels; |
| 292 | subdevice->me_subdevice_query_number_ranges = |
| 293 | me_subdevice_query_number_ranges; |
| 294 | subdevice->me_subdevice_query_range_by_min_max = |
| 295 | me_subdevice_query_range_by_min_max; |
| 296 | subdevice->me_subdevice_query_range_info = |
| 297 | me_subdevice_query_range_info; |
| 298 | subdevice->me_subdevice_query_subdevice_type = |
| 299 | me_subdevice_query_subdevice_type; |
| 300 | subdevice->me_subdevice_query_subdevice_caps = |
| 301 | me_subdevice_query_subdevice_caps; |
| 302 | subdevice->me_subdevice_query_subdevice_caps_args = |
| 303 | me_subdevice_query_subdevice_caps_args; |
| 304 | subdevice->me_subdevice_query_timer = me_subdevice_query_timer; |
| 305 | subdevice->me_subdevice_config_load = me_subdevice_config_load; |
| 306 | subdevice->me_subdevice_destructor = me_subdevice_destructor; |
| 307 | |
| 308 | return 0; |
| 309 | } |
| 310 | |
| 311 | void me_subdevice_deinit(me_subdevice_t * subdevice) |
| 312 | { |
| 313 | PDEBUG("executed.\n"); |
| 314 | me_subdevice_io_reset_subdevice(subdevice, NULL, |
| 315 | ME_IO_RESET_SUBDEVICE_NO_FLAGS); |
| 316 | me_slock_deinit(&subdevice->lock); |
| 317 | } |