1 /* ------------------------------------------------------------------------- */ 2 /* */ 3 /* i2c.h - definitions for the i2c-bus interface */ 4 /* */ 5 /* ------------------------------------------------------------------------- */ 6 /* Copyright (C) 1995-2000 Simon G. Vogl 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 2 of the License, or 11 (at your option) any later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with this program; if not, write to the Free Software 20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ 21 /* ------------------------------------------------------------------------- */ 22 23 /* With some changes from Kyösti Mälkki <[email protected]> and 24 Frodo Looijaard <[email protected]> */ 25 26 #ifndef _LINUX_I2C_H 27 #define _LINUX_I2C_H 28 29 #include <linux/types.h> 30 #ifdef __KERNEL__ 31 #include <linux/module.h> 32 #include <linux/i2c-id.h> 33 #include <linux/mod_devicetable.h> 34 #include <linux/device.h> /* for struct device */ 35 #include <linux/sched.h> /* for completion */ 36 #include <linux/mutex.h> 37 38 /* --- For i2c-isa ---------------------------------------------------- */ 39 40 extern void i2c_adapter_dev_release(struct device *dev); 41 extern struct device_driver i2c_adapter_driver; 42 extern struct class i2c_adapter_class; 43 extern struct bus_type i2c_bus_type; 44 45 /* --- General options ------------------------------------------------ */ 46 47 struct i2c_msg; 48 struct i2c_algorithm; 49 struct i2c_adapter; 50 struct i2c_client; 51 struct i2c_driver; 52 union i2c_smbus_data; 53 54 /* 55 * The master routines are the ones normally used to transmit data to devices 56 * on a bus (or read from them). Apart from two basic transfer functions to 57 * transmit one message at a time, a more complex version can be used to 58 * transmit an arbitrary number of messages without interruption. 59 */ 60 extern int i2c_master_send(struct i2c_client *,const char* ,int); 61 extern int i2c_master_recv(struct i2c_client *,char* ,int); 62 63 /* Transfer num messages. 64 */ 65 extern int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num); 66 67 68 /* This is the very generalized SMBus access routine. You probably do not 69 want to use this, though; one of the functions below may be much easier, 70 and probably just as fast. 71 Note that we use i2c_adapter here, because you do not need a specific 72 smbus adapter to call this function. */ 73 extern s32 i2c_smbus_xfer (struct i2c_adapter * adapter, u16 addr, 74 unsigned short flags, 75 char read_write, u8 command, int size, 76 union i2c_smbus_data * data); 77 78 /* Now follow the 'nice' access routines. These also document the calling 79 conventions of smbus_access. */ 80 81 extern s32 i2c_smbus_write_quick(struct i2c_client * client, u8 value); 82 extern s32 i2c_smbus_read_byte(struct i2c_client * client); 83 extern s32 i2c_smbus_write_byte(struct i2c_client * client, u8 value); 84 extern s32 i2c_smbus_read_byte_data(struct i2c_client * client, u8 command); 85 extern s32 i2c_smbus_write_byte_data(struct i2c_client * client, 86 u8 command, u8 value); 87 extern s32 i2c_smbus_read_word_data(struct i2c_client * client, u8 command); 88 extern s32 i2c_smbus_write_word_data(struct i2c_client * client, 89 u8 command, u16 value); 90 extern s32 i2c_smbus_write_block_data(struct i2c_client * client, 91 u8 command, u8 length, 92 const u8 *values); 93 /* Returns the number of read bytes */ 94 extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client * client, 95 u8 command, u8 *values); 96 extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client * client, 97 u8 command, u8 length, 98 const u8 *values); 99 100 /* 101 * A driver is capable of handling one or more physical devices present on 102 * I2C adapters. This information is used to inform the driver of adapter 103 * events. 104 * 105 * The driver.owner field should be set to the module owner of this driver. 106 * The driver.name field should be set to the name of this driver. 107 */ 108 109 struct i2c_driver { 110 int id; 111 unsigned int class; 112 113 /* Notifies the driver that a new bus has appeared. This routine 114 * can be used by the driver to test if the bus meets its conditions 115 * & seek for the presence of the chip(s) it supports. If found, it 116 * registers the client(s) that are on the bus to the i2c admin. via 117 * i2c_attach_client. 118 */ 119 int (*attach_adapter)(struct i2c_adapter *); 120 int (*detach_adapter)(struct i2c_adapter *); 121 122 /* tells the driver that a client is about to be deleted & gives it 123 * the chance to remove its private data. Also, if the client struct 124 * has been dynamically allocated by the driver in the function above, 125 * it must be freed here. 126 */ 127 int (*detach_client)(struct i2c_client *); 128 129 /* a ioctl like command that can be used to perform specific functions 130 * with the device. 131 */ 132 int (*command)(struct i2c_client *client,unsigned int cmd, void *arg); 133 134 struct device_driver driver; 135 struct list_head list; 136 }; 137 #define to_i2c_driver(d) container_of(d, struct i2c_driver, driver) 138 139 #define I2C_NAME_SIZE 50 140 141 /* 142 * i2c_client identifies a single device (i.e. chip) that is connected to an 143 * i2c bus. The behaviour is defined by the routines of the driver. This 144 * function is mainly used for lookup & other admin. functions. 145 */ 146 struct i2c_client { 147 unsigned int flags; /* div., see below */ 148 unsigned short addr; /* chip address - NOTE: 7bit */ 149 /* addresses are stored in the */ 150 /* _LOWER_ 7 bits */ 151 struct i2c_adapter *adapter; /* the adapter we sit on */ 152 struct i2c_driver *driver; /* and our access routines */ 153 int usage_count; /* How many accesses currently */ 154 /* to the client */ 155 struct device dev; /* the device structure */ 156 struct list_head list; 157 char name[I2C_NAME_SIZE]; 158 struct completion released; 159 }; 160 #define to_i2c_client(d) container_of(d, struct i2c_client, dev) 161 162 static inline struct i2c_client *kobj_to_i2c_client(struct kobject *kobj) 163 { 164 return to_i2c_client(container_of(kobj, struct device, kobj)); 165 } 166 167 static inline void *i2c_get_clientdata (struct i2c_client *dev) 168 { 169 return dev_get_drvdata (&dev->dev); 170 } 171 172 static inline void i2c_set_clientdata (struct i2c_client *dev, void *data) 173 { 174 dev_set_drvdata (&dev->dev, data); 175 } 176 177 /* 178 * The following structs are for those who like to implement new bus drivers: 179 * i2c_algorithm is the interface to a class of hardware solutions which can 180 * be addressed using the same bus algorithms - i.e. bit-banging or the PCF8584 181 * to name two of the most common. 182 */ 183 struct i2c_algorithm { 184 /* If an adapter algorithm can't do I2C-level access, set master_xfer 185 to NULL. If an adapter algorithm can do SMBus access, set 186 smbus_xfer. If set to NULL, the SMBus protocol is simulated 187 using common I2C messages */ 188 /* master_xfer should return the number of messages successfully 189 processed, or a negative value on error */ 190 int (*master_xfer)(struct i2c_adapter *adap,struct i2c_msg *msgs, 191 int num); 192 int (*smbus_xfer) (struct i2c_adapter *adap, u16 addr, 193 unsigned short flags, char read_write, 194 u8 command, int size, union i2c_smbus_data * data); 195 196 /* --- ioctl like call to set div. parameters. */ 197 int (*algo_control)(struct i2c_adapter *, unsigned int, unsigned long); 198 199 /* To determine what the adapter supports */ 200 u32 (*functionality) (struct i2c_adapter *); 201 }; 202 203 /* 204 * i2c_adapter is the structure used to identify a physical i2c bus along 205 * with the access algorithms necessary to access it. 206 */ 207 struct i2c_adapter { 208 struct module *owner; 209 unsigned int id; 210 unsigned int class; 211 const struct i2c_algorithm *algo; /* the algorithm to access the bus */ 212 void *algo_data; 213 214 /* --- administration stuff. */ 215 int (*client_register)(struct i2c_client *); 216 int (*client_unregister)(struct i2c_client *); 217 218 /* data fields that are valid for all devices */ 219 u8 level; /* nesting level for lockdep */ 220 struct mutex bus_lock; 221 struct mutex clist_lock; 222 223 int timeout; 224 int retries; 225 struct device dev; /* the adapter device */ 226 struct class_device class_dev; /* the class device */ 227 228 int nr; 229 struct list_head clients; 230 struct list_head list; 231 char name[I2C_NAME_SIZE]; 232 struct completion dev_released; 233 struct completion class_dev_released; 234 }; 235 #define dev_to_i2c_adapter(d) container_of(d, struct i2c_adapter, dev) 236 #define class_dev_to_i2c_adapter(d) container_of(d, struct i2c_adapter, class_dev) 237 238 static inline void *i2c_get_adapdata (struct i2c_adapter *dev) 239 { 240 return dev_get_drvdata (&dev->dev); 241 } 242 243 static inline void i2c_set_adapdata (struct i2c_adapter *dev, void *data) 244 { 245 dev_set_drvdata (&dev->dev, data); 246 } 247 248 /*flags for the client struct: */ 249 #define I2C_CLIENT_PEC 0x04 /* Use Packet Error Checking */ 250 #define I2C_CLIENT_TEN 0x10 /* we have a ten bit chip address */ 251 /* Must equal I2C_M_TEN below */ 252 253 /* i2c adapter classes (bitmask) */ 254 #define I2C_CLASS_HWMON (1<<0) /* lm_sensors, ... */ 255 #define I2C_CLASS_TV_ANALOG (1<<1) /* bttv + friends */ 256 #define I2C_CLASS_TV_DIGITAL (1<<2) /* dvb cards */ 257 #define I2C_CLASS_DDC (1<<3) /* i2c-matroxfb ? */ 258 #define I2C_CLASS_CAM_ANALOG (1<<4) /* camera with analog CCD */ 259 #define I2C_CLASS_CAM_DIGITAL (1<<5) /* most webcams */ 260 #define I2C_CLASS_SOUND (1<<6) /* sound devices */ 261 #define I2C_CLASS_ALL (UINT_MAX) /* all of the above */ 262 263 /* i2c_client_address_data is the struct for holding default client 264 * addresses for a driver and for the parameters supplied on the 265 * command line 266 */ 267 struct i2c_client_address_data { 268 unsigned short *normal_i2c; 269 unsigned short *probe; 270 unsigned short *ignore; 271 unsigned short **forces; 272 }; 273 274 /* Internal numbers to terminate lists */ 275 #define I2C_CLIENT_END 0xfffeU 276 277 /* The numbers to use to set I2C bus address */ 278 #define ANY_I2C_BUS 0xffff 279 #define ANY_I2C_ISA_BUS 9191 280 281 282 /* ----- functions exported by i2c.o */ 283 284 /* administration... 285 */ 286 extern int i2c_add_adapter(struct i2c_adapter *); 287 extern int i2c_del_adapter(struct i2c_adapter *); 288 289 extern int i2c_register_driver(struct module *, struct i2c_driver *); 290 extern int i2c_del_driver(struct i2c_driver *); 291 292 static inline int i2c_add_driver(struct i2c_driver *driver) 293 { 294 return i2c_register_driver(THIS_MODULE, driver); 295 } 296 297 extern int i2c_attach_client(struct i2c_client *); 298 extern int i2c_detach_client(struct i2c_client *); 299 300 /* Should be used to make sure that client-struct is valid and that it 301 is okay to access the i2c-client. 302 returns -ENODEV if client has gone in the meantime */ 303 extern int i2c_use_client(struct i2c_client *); 304 extern int i2c_release_client(struct i2c_client *); 305 306 /* call the i2c_client->command() of all attached clients with 307 * the given arguments */ 308 extern void i2c_clients_command(struct i2c_adapter *adap, 309 unsigned int cmd, void *arg); 310 311 /* returns -EBUSY if address has been taken, 0 if not. Note that the only 312 other place at which this is called is within i2c_attach_client; so 313 you can cheat by simply not registering. Not recommended, of course! */ 314 extern int i2c_check_addr (struct i2c_adapter *adapter, int addr); 315 316 /* Detect function. It iterates over all possible addresses itself. 317 * It will only call found_proc if some client is connected at the 318 * specific address (unless a 'force' matched); 319 */ 320 extern int i2c_probe(struct i2c_adapter *adapter, 321 struct i2c_client_address_data *address_data, 322 int (*found_proc) (struct i2c_adapter *, int, int)); 323 324 /* An ioctl like call to set div. parameters of the adapter. 325 */ 326 extern int i2c_control(struct i2c_client *,unsigned int, unsigned long); 327 328 extern struct i2c_adapter* i2c_get_adapter(int id); 329 extern void i2c_put_adapter(struct i2c_adapter *adap); 330 331 332 /* Return the functionality mask */ 333 static inline u32 i2c_get_functionality(struct i2c_adapter *adap) 334 { 335 return adap->algo->functionality(adap); 336 } 337 338 /* Return 1 if adapter supports everything we need, 0 if not. */ 339 static inline int i2c_check_functionality(struct i2c_adapter *adap, u32 func) 340 { 341 return (func & i2c_get_functionality(adap)) == func; 342 } 343 344 /* Return id number for a specific adapter */ 345 static inline int i2c_adapter_id(struct i2c_adapter *adap) 346 { 347 return adap->nr; 348 } 349 #endif /* __KERNEL__ */ 350 351 /* 352 * I2C Message - used for pure i2c transaction, also from /dev interface 353 */ 354 struct i2c_msg { 355 __u16 addr; /* slave address */ 356 __u16 flags; 357 #define I2C_M_TEN 0x10 /* we have a ten bit chip address */ 358 #define I2C_M_RD 0x01 359 #define I2C_M_NOSTART 0x4000 360 #define I2C_M_REV_DIR_ADDR 0x2000 361 #define I2C_M_IGNORE_NAK 0x1000 362 #define I2C_M_NO_RD_ACK 0x0800 363 __u16 len; /* msg length */ 364 __u8 *buf; /* pointer to msg data */ 365 }; 366 367 /* To determine what functionality is present */ 368 369 #define I2C_FUNC_I2C 0x00000001 370 #define I2C_FUNC_10BIT_ADDR 0x00000002 371 #define I2C_FUNC_PROTOCOL_MANGLING 0x00000004 /* I2C_M_{REV_DIR_ADDR,NOSTART,..} */ 372 #define I2C_FUNC_SMBUS_HWPEC_CALC 0x00000008 /* SMBus 2.0 */ 373 #define I2C_FUNC_SMBUS_BLOCK_PROC_CALL 0x00008000 /* SMBus 2.0 */ 374 #define I2C_FUNC_SMBUS_QUICK 0x00010000 375 #define I2C_FUNC_SMBUS_READ_BYTE 0x00020000 376 #define I2C_FUNC_SMBUS_WRITE_BYTE 0x00040000 377 #define I2C_FUNC_SMBUS_READ_BYTE_DATA 0x00080000 378 #define I2C_FUNC_SMBUS_WRITE_BYTE_DATA 0x00100000 379 #define I2C_FUNC_SMBUS_READ_WORD_DATA 0x00200000 380 #define I2C_FUNC_SMBUS_WRITE_WORD_DATA 0x00400000 381 #define I2C_FUNC_SMBUS_PROC_CALL 0x00800000 382 #define I2C_FUNC_SMBUS_READ_BLOCK_DATA 0x01000000 383 #define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA 0x02000000 384 #define I2C_FUNC_SMBUS_READ_I2C_BLOCK 0x04000000 /* I2C-like block xfer */ 385 #define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK 0x08000000 /* w/ 1-byte reg. addr. */ 386 #define I2C_FUNC_SMBUS_READ_I2C_BLOCK_2 0x10000000 /* I2C-like block xfer */ 387 #define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK_2 0x20000000 /* w/ 2-byte reg. addr. */ 388 389 #define I2C_FUNC_SMBUS_BYTE (I2C_FUNC_SMBUS_READ_BYTE | \ 390 I2C_FUNC_SMBUS_WRITE_BYTE) 391 #define I2C_FUNC_SMBUS_BYTE_DATA (I2C_FUNC_SMBUS_READ_BYTE_DATA | \ 392 I2C_FUNC_SMBUS_WRITE_BYTE_DATA) 393 #define I2C_FUNC_SMBUS_WORD_DATA (I2C_FUNC_SMBUS_READ_WORD_DATA | \ 394 I2C_FUNC_SMBUS_WRITE_WORD_DATA) 395 #define I2C_FUNC_SMBUS_BLOCK_DATA (I2C_FUNC_SMBUS_READ_BLOCK_DATA | \ 396 I2C_FUNC_SMBUS_WRITE_BLOCK_DATA) 397 #define I2C_FUNC_SMBUS_I2C_BLOCK (I2C_FUNC_SMBUS_READ_I2C_BLOCK | \ 398 I2C_FUNC_SMBUS_WRITE_I2C_BLOCK) 399 #define I2C_FUNC_SMBUS_I2C_BLOCK_2 (I2C_FUNC_SMBUS_READ_I2C_BLOCK_2 | \ 400 I2C_FUNC_SMBUS_WRITE_I2C_BLOCK_2) 401 402 #define I2C_FUNC_SMBUS_EMUL (I2C_FUNC_SMBUS_QUICK | \ 403 I2C_FUNC_SMBUS_BYTE | \ 404 I2C_FUNC_SMBUS_BYTE_DATA | \ 405 I2C_FUNC_SMBUS_WORD_DATA | \ 406 I2C_FUNC_SMBUS_PROC_CALL | \ 407 I2C_FUNC_SMBUS_WRITE_BLOCK_DATA | \ 408 I2C_FUNC_SMBUS_I2C_BLOCK) 409 410 /* 411 * Data for SMBus Messages 412 */ 413 #define I2C_SMBUS_BLOCK_MAX 32 /* As specified in SMBus standard */ 414 union i2c_smbus_data { 415 __u8 byte; 416 __u16 word; 417 __u8 block[I2C_SMBUS_BLOCK_MAX + 2]; /* block[0] is used for length */ 418 /* and one more for user-space compatibility */ 419 }; 420 421 /* smbus_access read or write markers */ 422 #define I2C_SMBUS_READ 1 423 #define I2C_SMBUS_WRITE 0 424 425 /* SMBus transaction types (size parameter in the above functions) 426 Note: these no longer correspond to the (arbitrary) PIIX4 internal codes! */ 427 #define I2C_SMBUS_QUICK 0 428 #define I2C_SMBUS_BYTE 1 429 #define I2C_SMBUS_BYTE_DATA 2 430 #define I2C_SMBUS_WORD_DATA 3 431 #define I2C_SMBUS_PROC_CALL 4 432 #define I2C_SMBUS_BLOCK_DATA 5 433 #define I2C_SMBUS_I2C_BLOCK_DATA 6 434 #define I2C_SMBUS_BLOCK_PROC_CALL 7 /* SMBus 2.0 */ 435 436 437 /* ----- commands for the ioctl like i2c_command call: 438 * note that additional calls are defined in the algorithm and hw 439 * dependent layers - these can be listed here, or see the 440 * corresponding header files. 441 */ 442 /* -> bit-adapter specific ioctls */ 443 #define I2C_RETRIES 0x0701 /* number of times a device address */ 444 /* should be polled when not */ 445 /* acknowledging */ 446 #define I2C_TIMEOUT 0x0702 /* set timeout - call with int */ 447 448 449 /* this is for i2c-dev.c */ 450 #define I2C_SLAVE 0x0703 /* Change slave address */ 451 /* Attn.: Slave address is 7 or 10 bits */ 452 #define I2C_SLAVE_FORCE 0x0706 /* Change slave address */ 453 /* Attn.: Slave address is 7 or 10 bits */ 454 /* This changes the address, even if it */ 455 /* is already taken! */ 456 #define I2C_TENBIT 0x0704 /* 0 for 7 bit addrs, != 0 for 10 bit */ 457 458 #define I2C_FUNCS 0x0705 /* Get the adapter functionality */ 459 #define I2C_RDWR 0x0707 /* Combined R/W transfer (one stop only)*/ 460 #define I2C_PEC 0x0708 /* != 0 for SMBus PEC */ 461 462 #define I2C_SMBUS 0x0720 /* SMBus-level access */ 463 464 /* ----- I2C-DEV: char device interface stuff ------------------------- */ 465 #ifdef __KERNEL__ 466 467 #define I2C_MAJOR 89 /* Device major number */ 468 469 /* These defines are used for probing i2c client addresses */ 470 /* The length of the option lists */ 471 #define I2C_CLIENT_MAX_OPTS 48 472 473 /* Default fill of many variables */ 474 #define I2C_CLIENT_DEFAULTS {I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 475 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 476 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 477 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 478 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 479 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 480 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 481 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 482 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 483 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 484 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 485 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 486 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 487 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 488 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 489 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END} 490 491 /* I2C_CLIENT_MODULE_PARM creates a module parameter, and puts it in the 492 module header */ 493 494 #define I2C_CLIENT_MODULE_PARM(var,desc) \ 495 static unsigned short var[I2C_CLIENT_MAX_OPTS] = I2C_CLIENT_DEFAULTS; \ 496 static unsigned int var##_num; \ 497 module_param_array(var, short, &var##_num, 0); \ 498 MODULE_PARM_DESC(var,desc) 499 500 #define I2C_CLIENT_MODULE_PARM_FORCE(name) \ 501 I2C_CLIENT_MODULE_PARM(force_##name, \ 502 "List of adapter,address pairs which are " \ 503 "unquestionably assumed to contain a `" \ 504 # name "' chip") 505 506 507 #define I2C_CLIENT_INSMOD_COMMON \ 508 I2C_CLIENT_MODULE_PARM(probe, "List of adapter,address pairs to scan " \ 509 "additionally"); \ 510 I2C_CLIENT_MODULE_PARM(ignore, "List of adapter,address pairs not to " \ 511 "scan"); \ 512 static struct i2c_client_address_data addr_data = { \ 513 .normal_i2c = normal_i2c, \ 514 .probe = probe, \ 515 .ignore = ignore, \ 516 .forces = forces, \ 517 } 518 519 /* These are the ones you want to use in your own drivers. Pick the one 520 which matches the number of devices the driver differenciates between. */ 521 #define I2C_CLIENT_INSMOD \ 522 I2C_CLIENT_MODULE_PARM(force, \ 523 "List of adapter,address pairs to boldly assume " \ 524 "to be present"); \ 525 static unsigned short *forces[] = { \ 526 force, \ 527 NULL \ 528 }; \ 529 I2C_CLIENT_INSMOD_COMMON 530 531 #define I2C_CLIENT_INSMOD_1(chip1) \ 532 enum chips { any_chip, chip1 }; \ 533 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ 534 "boldly assume to be present"); \ 535 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ 536 static unsigned short *forces[] = { force, force_##chip1, NULL }; \ 537 I2C_CLIENT_INSMOD_COMMON 538 539 #define I2C_CLIENT_INSMOD_2(chip1, chip2) \ 540 enum chips { any_chip, chip1, chip2 }; \ 541 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ 542 "boldly assume to be present"); \ 543 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ 544 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ 545 static unsigned short *forces[] = { force, force_##chip1, \ 546 force_##chip2, NULL }; \ 547 I2C_CLIENT_INSMOD_COMMON 548 549 #define I2C_CLIENT_INSMOD_3(chip1, chip2, chip3) \ 550 enum chips { any_chip, chip1, chip2, chip3 }; \ 551 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ 552 "boldly assume to be present"); \ 553 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ 554 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ 555 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \ 556 static unsigned short *forces[] = { force, force_##chip1, \ 557 force_##chip2, force_##chip3, \ 558 NULL }; \ 559 I2C_CLIENT_INSMOD_COMMON 560 561 #define I2C_CLIENT_INSMOD_4(chip1, chip2, chip3, chip4) \ 562 enum chips { any_chip, chip1, chip2, chip3, chip4 }; \ 563 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ 564 "boldly assume to be present"); \ 565 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ 566 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ 567 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \ 568 I2C_CLIENT_MODULE_PARM_FORCE(chip4); \ 569 static unsigned short *forces[] = { force, force_##chip1, \ 570 force_##chip2, force_##chip3, \ 571 force_##chip4, NULL}; \ 572 I2C_CLIENT_INSMOD_COMMON 573 574 #define I2C_CLIENT_INSMOD_5(chip1, chip2, chip3, chip4, chip5) \ 575 enum chips { any_chip, chip1, chip2, chip3, chip4, chip5 }; \ 576 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ 577 "boldly assume to be present"); \ 578 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ 579 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ 580 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \ 581 I2C_CLIENT_MODULE_PARM_FORCE(chip4); \ 582 I2C_CLIENT_MODULE_PARM_FORCE(chip5); \ 583 static unsigned short *forces[] = { force, force_##chip1, \ 584 force_##chip2, force_##chip3, \ 585 force_##chip4, force_##chip5, \ 586 NULL }; \ 587 I2C_CLIENT_INSMOD_COMMON 588 589 #define I2C_CLIENT_INSMOD_6(chip1, chip2, chip3, chip4, chip5, chip6) \ 590 enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6 }; \ 591 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ 592 "boldly assume to be present"); \ 593 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ 594 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ 595 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \ 596 I2C_CLIENT_MODULE_PARM_FORCE(chip4); \ 597 I2C_CLIENT_MODULE_PARM_FORCE(chip5); \ 598 I2C_CLIENT_MODULE_PARM_FORCE(chip6); \ 599 static unsigned short *forces[] = { force, force_##chip1, \ 600 force_##chip2, force_##chip3, \ 601 force_##chip4, force_##chip5, \ 602 force_##chip6, NULL }; \ 603 I2C_CLIENT_INSMOD_COMMON 604 605 #define I2C_CLIENT_INSMOD_7(chip1, chip2, chip3, chip4, chip5, chip6, chip7) \ 606 enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6, \ 607 chip7 }; \ 608 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ 609 "boldly assume to be present"); \ 610 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ 611 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ 612 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \ 613 I2C_CLIENT_MODULE_PARM_FORCE(chip4); \ 614 I2C_CLIENT_MODULE_PARM_FORCE(chip5); \ 615 I2C_CLIENT_MODULE_PARM_FORCE(chip6); \ 616 I2C_CLIENT_MODULE_PARM_FORCE(chip7); \ 617 static unsigned short *forces[] = { force, force_##chip1, \ 618 force_##chip2, force_##chip3, \ 619 force_##chip4, force_##chip5, \ 620 force_##chip6, force_##chip7, \ 621 NULL }; \ 622 I2C_CLIENT_INSMOD_COMMON 623 624 #define I2C_CLIENT_INSMOD_8(chip1, chip2, chip3, chip4, chip5, chip6, chip7, chip8) \ 625 enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6, \ 626 chip7, chip8 }; \ 627 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ 628 "boldly assume to be present"); \ 629 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ 630 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ 631 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \ 632 I2C_CLIENT_MODULE_PARM_FORCE(chip4); \ 633 I2C_CLIENT_MODULE_PARM_FORCE(chip5); \ 634 I2C_CLIENT_MODULE_PARM_FORCE(chip6); \ 635 I2C_CLIENT_MODULE_PARM_FORCE(chip7); \ 636 I2C_CLIENT_MODULE_PARM_FORCE(chip8); \ 637 static unsigned short *forces[] = { force, force_##chip1, \ 638 force_##chip2, force_##chip3, \ 639 force_##chip4, force_##chip5, \ 640 force_##chip6, force_##chip7, \ 641 force_##chip8, NULL }; \ 642 I2C_CLIENT_INSMOD_COMMON 643 #endif /* __KERNEL__ */ 644 #endif /* _LINUX_I2C_H */ 645