David Kiliani | 3fedd14 | 2008-11-01 00:39:12 +0100 | [diff] [blame] | 1 | /** |
| 2 | * @file me4600_device.c |
| 3 | * |
| 4 | * @brief ME-4600 device class implementation. |
| 5 | * @note Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de) |
| 6 | * @author Guenter Gebhardt |
| 7 | * @author Krzysztof Gantzke (k.gantzke@meilhaus.de) |
| 8 | */ |
| 9 | |
| 10 | /* |
| 11 | * Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de) |
| 12 | * |
| 13 | * This file is free software; you can redistribute it and/or modify |
| 14 | * it under the terms of the GNU General Public License as published by |
| 15 | * the Free Software Foundation; either version 2 of the License, or |
| 16 | * (at your option) any later version. |
| 17 | * |
| 18 | * This program is distributed in the hope that it will be useful, |
| 19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 21 | * GNU General Public License for more details. |
| 22 | * |
| 23 | * You should have received a copy of the GNU General Public License |
| 24 | * along with this program; if not, write to the Free Software |
| 25 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 26 | */ |
| 27 | |
| 28 | #ifndef __KERNEL__ |
| 29 | # define __KERNEL__ |
| 30 | #endif |
| 31 | |
| 32 | #ifndef MODULE |
| 33 | # define MODULE |
| 34 | #endif |
| 35 | |
| 36 | #include <linux/module.h> |
| 37 | |
| 38 | #include <linux/pci.h> |
| 39 | #include <linux/slab.h> |
| 40 | |
| 41 | #include "meids.h" |
| 42 | #include "meerror.h" |
| 43 | #include "mecommon.h" |
| 44 | #include "meinternal.h" |
| 45 | |
| 46 | #include "medebug.h" |
| 47 | #include "medevice.h" |
| 48 | #include "me4600_device.h" |
| 49 | #include "meplx_reg.h" |
| 50 | |
| 51 | #include "mefirmware.h" |
| 52 | |
| 53 | #include "mesubdevice.h" |
| 54 | #include "me4600_do.h" |
| 55 | #include "me4600_di.h" |
| 56 | #include "me4600_dio.h" |
| 57 | #include "me8254.h" |
| 58 | #include "me4600_ai.h" |
| 59 | #include "me4600_ao.h" |
| 60 | #include "me4600_ext_irq.h" |
| 61 | |
| 62 | /** |
| 63 | * @brief Global variable. |
| 64 | * This is working queue for runing a separate atask that will be responsible for work status (start, stop, timeouts). |
| 65 | */ |
| 66 | static struct workqueue_struct *me4600_workqueue; |
| 67 | |
| 68 | #ifdef BOSCH |
| 69 | me_device_t *me4600_pci_constructor(struct pci_dev *pci_device, int me_bosch_fw) |
| 70 | #else //~BOSCH |
| 71 | me_device_t *me4600_pci_constructor(struct pci_dev *pci_device) |
| 72 | #endif //BOSCH |
| 73 | { |
| 74 | me4600_device_t *me4600_device; |
| 75 | me_subdevice_t *subdevice; |
| 76 | unsigned int version_idx; |
| 77 | int err; |
| 78 | int i; |
| 79 | |
| 80 | PDEBUG("executed.\n"); |
| 81 | |
| 82 | // Allocate structure for device instance. |
| 83 | me4600_device = kmalloc(sizeof(me4600_device_t), GFP_KERNEL); |
| 84 | |
| 85 | if (!me4600_device) { |
| 86 | PERROR("Cannot get memory for ME-4600 device instance.\n"); |
| 87 | return NULL; |
| 88 | } |
| 89 | |
| 90 | memset(me4600_device, 0, sizeof(me4600_device_t)); |
| 91 | |
| 92 | // Initialize base class structure. |
| 93 | err = me_device_pci_init((me_device_t *) me4600_device, pci_device); |
| 94 | |
| 95 | if (err) { |
| 96 | kfree(me4600_device); |
| 97 | PERROR("Cannot initialize device base class.\n"); |
| 98 | return NULL; |
| 99 | } |
| 100 | // Download the xilinx firmware. |
| 101 | if (me4600_device->base.info.pci.device_id == PCI_DEVICE_ID_MEILHAUS_ME4610) { //Jekyll <=> me4610 |
| 102 | err = |
| 103 | me_xilinx_download(me4600_device->base.info.pci. |
| 104 | reg_bases[1], |
| 105 | me4600_device->base.info.pci. |
| 106 | reg_bases[5], &pci_device->dev, |
| 107 | "me4610.bin"); |
| 108 | } else { // General me4600 firmware |
| 109 | #ifdef BOSCH |
| 110 | err = |
| 111 | me_xilinx_download(me4600_device->base.info.pci. |
| 112 | reg_bases[1], |
| 113 | me4600_device->base.info.pci. |
| 114 | reg_bases[5], &pci_device->dev, |
| 115 | (me_bosch_fw) ? "me4600_bosch.bin" : |
| 116 | "me4600.bin"); |
| 117 | #else //~BOSCH |
| 118 | err = |
| 119 | me_xilinx_download(me4600_device->base.info.pci. |
| 120 | reg_bases[1], |
| 121 | me4600_device->base.info.pci. |
| 122 | reg_bases[5], &pci_device->dev, |
| 123 | "me4600.bin"); |
| 124 | #endif |
| 125 | } |
| 126 | |
| 127 | if (err) { |
| 128 | me_device_deinit((me_device_t *) me4600_device); |
| 129 | kfree(me4600_device); |
| 130 | PERROR("Cannot download firmware.\n"); |
| 131 | return NULL; |
| 132 | } |
| 133 | // Get the index in the device version information table. |
| 134 | version_idx = |
| 135 | me4600_versions_get_device_index(me4600_device->base.info.pci. |
| 136 | device_id); |
| 137 | |
| 138 | // Initialize spin locks. |
| 139 | spin_lock_init(&me4600_device->preload_reg_lock); |
| 140 | |
| 141 | me4600_device->preload_flags = 0; |
| 142 | |
| 143 | spin_lock_init(&me4600_device->dio_lock); |
| 144 | spin_lock_init(&me4600_device->ai_ctrl_lock); |
| 145 | spin_lock_init(&me4600_device->ctr_ctrl_reg_lock); |
| 146 | spin_lock_init(&me4600_device->ctr_clk_src_reg_lock); |
| 147 | |
| 148 | // Create digital input instances. |
| 149 | for (i = 0; i < me4600_versions[version_idx].di_subdevices; i++) { |
| 150 | subdevice = |
| 151 | (me_subdevice_t *) me4600_di_constructor(me4600_device-> |
| 152 | base.info.pci. |
| 153 | reg_bases[2], |
| 154 | &me4600_device-> |
| 155 | dio_lock); |
| 156 | |
| 157 | if (!subdevice) { |
| 158 | me_device_deinit((me_device_t *) me4600_device); |
| 159 | kfree(me4600_device); |
| 160 | PERROR("Cannot get memory for subdevice.\n"); |
| 161 | return NULL; |
| 162 | } |
| 163 | |
| 164 | me_slist_add_subdevice_tail(&me4600_device->base.slist, |
| 165 | subdevice); |
| 166 | } |
| 167 | |
| 168 | // Create digital output instances. |
| 169 | for (i = 0; i < me4600_versions[version_idx].do_subdevices; i++) { |
| 170 | subdevice = |
| 171 | (me_subdevice_t *) me4600_do_constructor(me4600_device-> |
| 172 | base.info.pci. |
| 173 | reg_bases[2], |
| 174 | &me4600_device-> |
| 175 | dio_lock); |
| 176 | |
| 177 | if (!subdevice) { |
| 178 | me_device_deinit((me_device_t *) me4600_device); |
| 179 | kfree(me4600_device); |
| 180 | PERROR("Cannot get memory for subdevice.\n"); |
| 181 | return NULL; |
| 182 | } |
| 183 | |
| 184 | me_slist_add_subdevice_tail(&me4600_device->base.slist, |
| 185 | subdevice); |
| 186 | } |
| 187 | |
| 188 | // Create digital input/output instances. |
| 189 | for (i = 0; i < me4600_versions[version_idx].dio_subdevices; i++) { |
| 190 | subdevice = |
| 191 | (me_subdevice_t *) me4600_dio_constructor(me4600_device-> |
| 192 | base.info.pci. |
| 193 | reg_bases[2], |
| 194 | me4600_versions |
| 195 | [version_idx]. |
| 196 | do_subdevices + |
| 197 | me4600_versions |
| 198 | [version_idx]. |
| 199 | di_subdevices + i, |
| 200 | &me4600_device-> |
| 201 | dio_lock); |
| 202 | |
| 203 | if (!subdevice) { |
| 204 | me_device_deinit((me_device_t *) me4600_device); |
| 205 | kfree(me4600_device); |
| 206 | PERROR("Cannot get memory for subdevice.\n"); |
| 207 | return NULL; |
| 208 | } |
| 209 | |
| 210 | me_slist_add_subdevice_tail(&me4600_device->base.slist, |
| 211 | subdevice); |
| 212 | } |
| 213 | |
| 214 | // Create analog input instances. |
| 215 | for (i = 0; i < me4600_versions[version_idx].ai_subdevices; i++) { |
| 216 | subdevice = |
| 217 | (me_subdevice_t *) me4600_ai_constructor(me4600_device-> |
| 218 | base.info.pci. |
| 219 | reg_bases[2], |
| 220 | me4600_versions |
| 221 | [version_idx]. |
| 222 | ai_channels, |
| 223 | me4600_versions |
| 224 | [version_idx]. |
| 225 | ai_ranges, |
| 226 | me4600_versions |
| 227 | [version_idx]. |
| 228 | ai_isolated, |
| 229 | me4600_versions |
| 230 | [version_idx]. |
| 231 | ai_sh, |
| 232 | me4600_device-> |
| 233 | base.irq, |
| 234 | &me4600_device-> |
| 235 | ai_ctrl_lock, |
| 236 | me4600_workqueue); |
| 237 | |
| 238 | if (!subdevice) { |
| 239 | me_device_deinit((me_device_t *) me4600_device); |
| 240 | kfree(me4600_device); |
| 241 | PERROR("Cannot get memory for subdevice.\n"); |
| 242 | return NULL; |
| 243 | } |
| 244 | |
| 245 | me_slist_add_subdevice_tail(&me4600_device->base.slist, |
| 246 | subdevice); |
| 247 | } |
| 248 | |
| 249 | // Create analog output instances. |
| 250 | for (i = 0; i < me4600_versions[version_idx].ao_subdevices; i++) { |
| 251 | #ifdef BOSCH |
| 252 | subdevice = |
| 253 | (me_subdevice_t *) me4600_ao_constructor(me4600_device-> |
| 254 | base.info.pci. |
| 255 | reg_bases[2], |
| 256 | &me4600_device-> |
| 257 | preload_reg_lock, |
| 258 | &me4600_device-> |
| 259 | preload_flags, i, |
| 260 | me4600_versions |
| 261 | [version_idx]. |
| 262 | ao_fifo, |
| 263 | me4600_device-> |
| 264 | base.irq); |
| 265 | #else //~BOSCH |
| 266 | subdevice = |
| 267 | (me_subdevice_t *) me4600_ao_constructor(me4600_device-> |
| 268 | base.info.pci. |
| 269 | reg_bases[2], |
| 270 | &me4600_device-> |
| 271 | preload_reg_lock, |
| 272 | &me4600_device-> |
| 273 | preload_flags, i, |
| 274 | me4600_versions |
| 275 | [version_idx]. |
| 276 | ao_fifo, |
| 277 | me4600_device-> |
| 278 | base.irq, |
| 279 | me4600_workqueue); |
| 280 | #endif |
| 281 | |
| 282 | if (!subdevice) { |
| 283 | me_device_deinit((me_device_t *) me4600_device); |
| 284 | kfree(me4600_device); |
| 285 | PERROR("Cannot get memory for subdevice.\n"); |
| 286 | return NULL; |
| 287 | } |
| 288 | |
| 289 | me_slist_add_subdevice_tail(&me4600_device->base.slist, |
| 290 | subdevice); |
| 291 | } |
| 292 | |
| 293 | // Create counter instances. |
| 294 | for (i = 0; i < me4600_versions[version_idx].ctr_subdevices; i++) { |
| 295 | subdevice = |
| 296 | (me_subdevice_t *) me8254_constructor(me4600_device->base. |
| 297 | info.pci.device_id, |
| 298 | me4600_device->base. |
| 299 | info.pci.reg_bases[3], |
| 300 | 0, i, |
| 301 | &me4600_device-> |
| 302 | ctr_ctrl_reg_lock, |
| 303 | &me4600_device-> |
| 304 | ctr_clk_src_reg_lock); |
| 305 | |
| 306 | if (!subdevice) { |
| 307 | me_device_deinit((me_device_t *) me4600_device); |
| 308 | kfree(me4600_device); |
| 309 | PERROR("Cannot get memory for subdevice.\n"); |
| 310 | return NULL; |
| 311 | } |
| 312 | |
| 313 | me_slist_add_subdevice_tail(&me4600_device->base.slist, |
| 314 | subdevice); |
| 315 | } |
| 316 | |
| 317 | // Create external interrupt instances. |
| 318 | for (i = 0; i < me4600_versions[version_idx].ext_irq_subdevices; i++) { |
| 319 | subdevice = |
| 320 | (me_subdevice_t *) |
| 321 | me4600_ext_irq_constructor(me4600_device->base.info.pci. |
| 322 | reg_bases[2], |
| 323 | me4600_device->base.irq, |
| 324 | &me4600_device->ai_ctrl_lock); |
| 325 | |
| 326 | if (!subdevice) { |
| 327 | me_device_deinit((me_device_t *) me4600_device); |
| 328 | kfree(me4600_device); |
| 329 | PERROR("Cannot get memory for subdevice.\n"); |
| 330 | return NULL; |
| 331 | } |
| 332 | |
| 333 | me_slist_add_subdevice_tail(&me4600_device->base.slist, |
| 334 | subdevice); |
| 335 | } |
| 336 | |
| 337 | return (me_device_t *) me4600_device; |
| 338 | } |
| 339 | |
| 340 | // Init and exit of module. |
| 341 | |
| 342 | static int __init me4600_init(void) |
| 343 | { |
| 344 | PDEBUG("executed.\n"); |
| 345 | |
| 346 | #ifndef BOSCH |
| 347 | me4600_workqueue = create_singlethread_workqueue("me4600"); |
| 348 | #endif |
| 349 | return 0; |
| 350 | } |
| 351 | |
| 352 | static void __exit me4600_exit(void) |
| 353 | { |
| 354 | PDEBUG("executed.\n"); |
| 355 | |
| 356 | #ifndef BOSCH |
| 357 | flush_workqueue(me4600_workqueue); |
| 358 | destroy_workqueue(me4600_workqueue); |
| 359 | #endif |
| 360 | } |
| 361 | |
| 362 | module_init(me4600_init); |
| 363 | module_exit(me4600_exit); |
| 364 | |
| 365 | // Administrative stuff for modinfo. |
| 366 | MODULE_AUTHOR |
| 367 | ("Guenter Gebhardt <g.gebhardt@meilhaus.de> & Krzysztof Gantzke <k.gantzke@meilhaus.de>"); |
| 368 | MODULE_DESCRIPTION("Device Driver Module for ME-46xx Devices"); |
| 369 | MODULE_SUPPORTED_DEVICE("Meilhaus ME-46xx Devices"); |
| 370 | MODULE_LICENSE("GPL"); |
| 371 | |
| 372 | // Export the constructor. |
| 373 | EXPORT_SYMBOL(me4600_pci_constructor); |