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 * Some adapter types (i.e. PCF 8584 based ones) may support slave behaviuor. 69 * This is not tested/implemented yet and will change in the future. 70 */ 71 extern int i2c_slave_send(struct i2c_client *,char*,int); 72 extern int i2c_slave_recv(struct i2c_client *,char*,int); 73 74 75 76 /* This is the very generalized SMBus access routine. You probably do not 77 want to use this, though; one of the functions below may be much easier, 78 and probably just as fast. 79 Note that we use i2c_adapter here, because you do not need a specific 80 smbus adapter to call this function. */ 81 extern s32 i2c_smbus_xfer (struct i2c_adapter * adapter, u16 addr, 82 unsigned short flags, 83 char read_write, u8 command, int size, 84 union i2c_smbus_data * data); 85 86 /* Now follow the 'nice' access routines. These also document the calling 87 conventions of smbus_access. */ 88 89 extern s32 i2c_smbus_write_quick(struct i2c_client * client, u8 value); 90 extern s32 i2c_smbus_read_byte(struct i2c_client * client); 91 extern s32 i2c_smbus_write_byte(struct i2c_client * client, u8 value); 92 extern s32 i2c_smbus_read_byte_data(struct i2c_client * client, u8 command); 93 extern s32 i2c_smbus_write_byte_data(struct i2c_client * client, 94 u8 command, u8 value); 95 extern s32 i2c_smbus_read_word_data(struct i2c_client * client, u8 command); 96 extern s32 i2c_smbus_write_word_data(struct i2c_client * client, 97 u8 command, u16 value); 98 extern s32 i2c_smbus_write_block_data(struct i2c_client * client, 99 u8 command, u8 length, 100 u8 *values); 101 /* Returns the number of read bytes */ 102 extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client * client, 103 u8 command, u8 *values); 104 extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client * client, 105 u8 command, u8 length, 106 u8 *values); 107 108 /* 109 * A driver is capable of handling one or more physical devices present on 110 * I2C adapters. This information is used to inform the driver of adapter 111 * events. 112 * 113 * The driver.owner field should be set to the module owner of this driver. 114 * The driver.name field should be set to the name of this driver. 115 */ 116 117 struct i2c_driver { 118 int id; 119 unsigned int class; 120 121 /* Notifies the driver that a new bus has appeared. This routine 122 * can be used by the driver to test if the bus meets its conditions 123 * & seek for the presence of the chip(s) it supports. If found, it 124 * registers the client(s) that are on the bus to the i2c admin. via 125 * i2c_attach_client. 126 */ 127 int (*attach_adapter)(struct i2c_adapter *); 128 int (*detach_adapter)(struct i2c_adapter *); 129 130 /* tells the driver that a client is about to be deleted & gives it 131 * the chance to remove its private data. Also, if the client struct 132 * has been dynamically allocated by the driver in the function above, 133 * it must be freed here. 134 */ 135 int (*detach_client)(struct i2c_client *); 136 137 /* a ioctl like command that can be used to perform specific functions 138 * with the device. 139 */ 140 int (*command)(struct i2c_client *client,unsigned int cmd, void *arg); 141 142 struct device_driver driver; 143 struct list_head list; 144 }; 145 #define to_i2c_driver(d) container_of(d, struct i2c_driver, driver) 146 147 #define I2C_NAME_SIZE 50 148 149 /* 150 * i2c_client identifies a single device (i.e. chip) that is connected to an 151 * i2c bus. The behaviour is defined by the routines of the driver. This 152 * function is mainly used for lookup & other admin. functions. 153 */ 154 struct i2c_client { 155 unsigned int flags; /* div., see below */ 156 unsigned short addr; /* chip address - NOTE: 7bit */ 157 /* addresses are stored in the */ 158 /* _LOWER_ 7 bits */ 159 struct i2c_adapter *adapter; /* the adapter we sit on */ 160 struct i2c_driver *driver; /* and our access routines */ 161 int usage_count; /* How many accesses currently */ 162 /* to the client */ 163 struct device dev; /* the device structure */ 164 struct list_head list; 165 char name[I2C_NAME_SIZE]; 166 struct completion released; 167 }; 168 #define to_i2c_client(d) container_of(d, struct i2c_client, dev) 169 170 static inline struct i2c_client *kobj_to_i2c_client(struct kobject *kobj) 171 { 172 return to_i2c_client(container_of(kobj, struct device, kobj)); 173 } 174 175 static inline void *i2c_get_clientdata (struct i2c_client *dev) 176 { 177 return dev_get_drvdata (&dev->dev); 178 } 179 180 static inline void i2c_set_clientdata (struct i2c_client *dev, void *data) 181 { 182 dev_set_drvdata (&dev->dev, data); 183 } 184 185 /* 186 * The following structs are for those who like to implement new bus drivers: 187 * i2c_algorithm is the interface to a class of hardware solutions which can 188 * be addressed using the same bus algorithms - i.e. bit-banging or the PCF8584 189 * to name two of the most common. 190 */ 191 struct i2c_algorithm { 192 /* If an adapter algorithm can't do I2C-level access, set master_xfer 193 to NULL. If an adapter algorithm can do SMBus access, set 194 smbus_xfer. If set to NULL, the SMBus protocol is simulated 195 using common I2C messages */ 196 int (*master_xfer)(struct i2c_adapter *adap,struct i2c_msg *msgs, 197 int num); 198 int (*smbus_xfer) (struct i2c_adapter *adap, u16 addr, 199 unsigned short flags, char read_write, 200 u8 command, int size, union i2c_smbus_data * data); 201 202 /* --- these optional/future use for some adapter types.*/ 203 int (*slave_send)(struct i2c_adapter *,char*,int); 204 int (*slave_recv)(struct i2c_adapter *,char*,int); 205 206 /* --- ioctl like call to set div. parameters. */ 207 int (*algo_control)(struct i2c_adapter *, unsigned int, unsigned long); 208 209 /* To determine what the adapter supports */ 210 u32 (*functionality) (struct i2c_adapter *); 211 }; 212 213 /* 214 * i2c_adapter is the structure used to identify a physical i2c bus along 215 * with the access algorithms necessary to access it. 216 */ 217 struct i2c_adapter { 218 struct module *owner; 219 unsigned int id; 220 unsigned int class; 221 struct i2c_algorithm *algo;/* the algorithm to access the bus */ 222 void *algo_data; 223 224 /* --- administration stuff. */ 225 int (*client_register)(struct i2c_client *); 226 int (*client_unregister)(struct i2c_client *); 227 228 /* data fields that are valid for all devices */ 229 struct mutex bus_lock; 230 struct mutex clist_lock; 231 232 int timeout; 233 int retries; 234 struct device dev; /* the adapter device */ 235 struct class_device class_dev; /* the class device */ 236 237 int nr; 238 struct list_head clients; 239 struct list_head list; 240 char name[I2C_NAME_SIZE]; 241 struct completion dev_released; 242 struct completion class_dev_released; 243 }; 244 #define dev_to_i2c_adapter(d) container_of(d, struct i2c_adapter, dev) 245 #define class_dev_to_i2c_adapter(d) container_of(d, struct i2c_adapter, class_dev) 246 247 static inline void *i2c_get_adapdata (struct i2c_adapter *dev) 248 { 249 return dev_get_drvdata (&dev->dev); 250 } 251 252 static inline void i2c_set_adapdata (struct i2c_adapter *dev, void *data) 253 { 254 dev_set_drvdata (&dev->dev, data); 255 } 256 257 /*flags for the client struct: */ 258 #define I2C_CLIENT_PEC 0x04 /* Use Packet Error Checking */ 259 #define I2C_CLIENT_TEN 0x10 /* we have a ten bit chip address */ 260 /* Must equal I2C_M_TEN below */ 261 262 /* i2c adapter classes (bitmask) */ 263 #define I2C_CLASS_HWMON (1<<0) /* lm_sensors, ... */ 264 #define I2C_CLASS_TV_ANALOG (1<<1) /* bttv + friends */ 265 #define I2C_CLASS_TV_DIGITAL (1<<2) /* dvb cards */ 266 #define I2C_CLASS_DDC (1<<3) /* i2c-matroxfb ? */ 267 #define I2C_CLASS_CAM_ANALOG (1<<4) /* camera with analog CCD */ 268 #define I2C_CLASS_CAM_DIGITAL (1<<5) /* most webcams */ 269 #define I2C_CLASS_SOUND (1<<6) /* sound devices */ 270 #define I2C_CLASS_ALL (UINT_MAX) /* all of the above */ 271 272 /* i2c_client_address_data is the struct for holding default client 273 * addresses for a driver and for the parameters supplied on the 274 * command line 275 */ 276 struct i2c_client_address_data { 277 unsigned short *normal_i2c; 278 unsigned short *probe; 279 unsigned short *ignore; 280 unsigned short **forces; 281 }; 282 283 /* Internal numbers to terminate lists */ 284 #define I2C_CLIENT_END 0xfffeU 285 286 /* The numbers to use to set I2C bus address */ 287 #define ANY_I2C_BUS 0xffff 288 #define ANY_I2C_ISA_BUS 9191 289 290 291 /* ----- functions exported by i2c.o */ 292 293 /* administration... 294 */ 295 extern int i2c_add_adapter(struct i2c_adapter *); 296 extern int i2c_del_adapter(struct i2c_adapter *); 297 298 extern int i2c_register_driver(struct module *, struct i2c_driver *); 299 extern int i2c_del_driver(struct i2c_driver *); 300 301 static inline int i2c_add_driver(struct i2c_driver *driver) 302 { 303 return i2c_register_driver(THIS_MODULE, driver); 304 } 305 306 extern int i2c_attach_client(struct i2c_client *); 307 extern int i2c_detach_client(struct i2c_client *); 308 309 /* Should be used to make sure that client-struct is valid and that it 310 is okay to access the i2c-client. 311 returns -ENODEV if client has gone in the meantime */ 312 extern int i2c_use_client(struct i2c_client *); 313 extern int i2c_release_client(struct i2c_client *); 314 315 /* call the i2c_client->command() of all attached clients with 316 * the given arguments */ 317 extern void i2c_clients_command(struct i2c_adapter *adap, 318 unsigned int cmd, void *arg); 319 320 /* returns -EBUSY if address has been taken, 0 if not. Note that the only 321 other place at which this is called is within i2c_attach_client; so 322 you can cheat by simply not registering. Not recommended, of course! */ 323 extern int i2c_check_addr (struct i2c_adapter *adapter, int addr); 324 325 /* Detect function. It iterates over all possible addresses itself. 326 * It will only call found_proc if some client is connected at the 327 * specific address (unless a 'force' matched); 328 */ 329 extern int i2c_probe(struct i2c_adapter *adapter, 330 struct i2c_client_address_data *address_data, 331 int (*found_proc) (struct i2c_adapter *, int, int)); 332 333 /* An ioctl like call to set div. parameters of the adapter. 334 */ 335 extern int i2c_control(struct i2c_client *,unsigned int, unsigned long); 336 337 extern struct i2c_adapter* i2c_get_adapter(int id); 338 extern void i2c_put_adapter(struct i2c_adapter *adap); 339 340 341 /* Return the functionality mask */ 342 static inline u32 i2c_get_functionality(struct i2c_adapter *adap) 343 { 344 return adap->algo->functionality(adap); 345 } 346 347 /* Return 1 if adapter supports everything we need, 0 if not. */ 348 static inline int i2c_check_functionality(struct i2c_adapter *adap, u32 func) 349 { 350 return (func & i2c_get_functionality(adap)) == func; 351 } 352 353 /* Return id number for a specific adapter */ 354 static inline int i2c_adapter_id(struct i2c_adapter *adap) 355 { 356 return adap->nr; 357 } 358 #endif /* __KERNEL__ */ 359 360 /* 361 * I2C Message - used for pure i2c transaction, also from /dev interface 362 */ 363 struct i2c_msg { 364 __u16 addr; /* slave address */ 365 __u16 flags; 366 #define I2C_M_TEN 0x10 /* we have a ten bit chip address */ 367 #define I2C_M_RD 0x01 368 #define I2C_M_NOSTART 0x4000 369 #define I2C_M_REV_DIR_ADDR 0x2000 370 #define I2C_M_IGNORE_NAK 0x1000 371 #define I2C_M_NO_RD_ACK 0x0800 372 __u16 len; /* msg length */ 373 __u8 *buf; /* pointer to msg data */ 374 }; 375 376 /* To determine what functionality is present */ 377 378 #define I2C_FUNC_I2C 0x00000001 379 #define I2C_FUNC_10BIT_ADDR 0x00000002 380 #define I2C_FUNC_PROTOCOL_MANGLING 0x00000004 /* I2C_M_{REV_DIR_ADDR,NOSTART,..} */ 381 #define I2C_FUNC_SMBUS_HWPEC_CALC 0x00000008 /* SMBus 2.0 */ 382 #define I2C_FUNC_SMBUS_BLOCK_PROC_CALL 0x00008000 /* SMBus 2.0 */ 383 #define I2C_FUNC_SMBUS_QUICK 0x00010000 384 #define I2C_FUNC_SMBUS_READ_BYTE 0x00020000 385 #define I2C_FUNC_SMBUS_WRITE_BYTE 0x00040000 386 #define I2C_FUNC_SMBUS_READ_BYTE_DATA 0x00080000 387 #define I2C_FUNC_SMBUS_WRITE_BYTE_DATA 0x00100000 388 #define I2C_FUNC_SMBUS_READ_WORD_DATA 0x00200000 389 #define I2C_FUNC_SMBUS_WRITE_WORD_DATA 0x00400000 390 #define I2C_FUNC_SMBUS_PROC_CALL 0x00800000 391 #define I2C_FUNC_SMBUS_READ_BLOCK_DATA 0x01000000 392 #define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA 0x02000000 393 #define I2C_FUNC_SMBUS_READ_I2C_BLOCK 0x04000000 /* I2C-like block xfer */ 394 #define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK 0x08000000 /* w/ 1-byte reg. addr. */ 395 #define I2C_FUNC_SMBUS_READ_I2C_BLOCK_2 0x10000000 /* I2C-like block xfer */ 396 #define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK_2 0x20000000 /* w/ 2-byte reg. addr. */ 397 398 #define I2C_FUNC_SMBUS_BYTE (I2C_FUNC_SMBUS_READ_BYTE | \ 399 I2C_FUNC_SMBUS_WRITE_BYTE) 400 #define I2C_FUNC_SMBUS_BYTE_DATA (I2C_FUNC_SMBUS_READ_BYTE_DATA | \ 401 I2C_FUNC_SMBUS_WRITE_BYTE_DATA) 402 #define I2C_FUNC_SMBUS_WORD_DATA (I2C_FUNC_SMBUS_READ_WORD_DATA | \ 403 I2C_FUNC_SMBUS_WRITE_WORD_DATA) 404 #define I2C_FUNC_SMBUS_BLOCK_DATA (I2C_FUNC_SMBUS_READ_BLOCK_DATA | \ 405 I2C_FUNC_SMBUS_WRITE_BLOCK_DATA) 406 #define I2C_FUNC_SMBUS_I2C_BLOCK (I2C_FUNC_SMBUS_READ_I2C_BLOCK | \ 407 I2C_FUNC_SMBUS_WRITE_I2C_BLOCK) 408 #define I2C_FUNC_SMBUS_I2C_BLOCK_2 (I2C_FUNC_SMBUS_READ_I2C_BLOCK_2 | \ 409 I2C_FUNC_SMBUS_WRITE_I2C_BLOCK_2) 410 411 #define I2C_FUNC_SMBUS_EMUL (I2C_FUNC_SMBUS_QUICK | \ 412 I2C_FUNC_SMBUS_BYTE | \ 413 I2C_FUNC_SMBUS_BYTE_DATA | \ 414 I2C_FUNC_SMBUS_WORD_DATA | \ 415 I2C_FUNC_SMBUS_PROC_CALL | \ 416 I2C_FUNC_SMBUS_WRITE_BLOCK_DATA | \ 417 I2C_FUNC_SMBUS_I2C_BLOCK) 418 419 /* 420 * Data for SMBus Messages 421 */ 422 #define I2C_SMBUS_BLOCK_MAX 32 /* As specified in SMBus standard */ 423 union i2c_smbus_data { 424 __u8 byte; 425 __u16 word; 426 __u8 block[I2C_SMBUS_BLOCK_MAX + 2]; /* block[0] is used for length */ 427 /* and one more for user-space compatibility */ 428 }; 429 430 /* smbus_access read or write markers */ 431 #define I2C_SMBUS_READ 1 432 #define I2C_SMBUS_WRITE 0 433 434 /* SMBus transaction types (size parameter in the above functions) 435 Note: these no longer correspond to the (arbitrary) PIIX4 internal codes! */ 436 #define I2C_SMBUS_QUICK 0 437 #define I2C_SMBUS_BYTE 1 438 #define I2C_SMBUS_BYTE_DATA 2 439 #define I2C_SMBUS_WORD_DATA 3 440 #define I2C_SMBUS_PROC_CALL 4 441 #define I2C_SMBUS_BLOCK_DATA 5 442 #define I2C_SMBUS_I2C_BLOCK_DATA 6 443 #define I2C_SMBUS_BLOCK_PROC_CALL 7 /* SMBus 2.0 */ 444 445 446 /* ----- commands for the ioctl like i2c_command call: 447 * note that additional calls are defined in the algorithm and hw 448 * dependent layers - these can be listed here, or see the 449 * corresponding header files. 450 */ 451 /* -> bit-adapter specific ioctls */ 452 #define I2C_RETRIES 0x0701 /* number of times a device address */ 453 /* should be polled when not */ 454 /* acknowledging */ 455 #define I2C_TIMEOUT 0x0702 /* set timeout - call with int */ 456 457 458 /* this is for i2c-dev.c */ 459 #define I2C_SLAVE 0x0703 /* Change slave address */ 460 /* Attn.: Slave address is 7 or 10 bits */ 461 #define I2C_SLAVE_FORCE 0x0706 /* Change slave address */ 462 /* Attn.: Slave address is 7 or 10 bits */ 463 /* This changes the address, even if it */ 464 /* is already taken! */ 465 #define I2C_TENBIT 0x0704 /* 0 for 7 bit addrs, != 0 for 10 bit */ 466 467 #define I2C_FUNCS 0x0705 /* Get the adapter functionality */ 468 #define I2C_RDWR 0x0707 /* Combined R/W transfer (one stop only)*/ 469 #define I2C_PEC 0x0708 /* != 0 for SMBus PEC */ 470 471 #define I2C_SMBUS 0x0720 /* SMBus-level access */ 472 473 /* ----- I2C-DEV: char device interface stuff ------------------------- */ 474 #ifdef __KERNEL__ 475 476 #define I2C_MAJOR 89 /* Device major number */ 477 478 /* These defines are used for probing i2c client addresses */ 479 /* The length of the option lists */ 480 #define I2C_CLIENT_MAX_OPTS 48 481 482 /* Default fill of many variables */ 483 #define I2C_CLIENT_DEFAULTS {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 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 491 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 492 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 493 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 494 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 495 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 496 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 497 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ 498 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END} 499 500 /* I2C_CLIENT_MODULE_PARM creates a module parameter, and puts it in the 501 module header */ 502 503 #define I2C_CLIENT_MODULE_PARM(var,desc) \ 504 static unsigned short var[I2C_CLIENT_MAX_OPTS] = I2C_CLIENT_DEFAULTS; \ 505 static unsigned int var##_num; \ 506 module_param_array(var, short, &var##_num, 0); \ 507 MODULE_PARM_DESC(var,desc) 508 509 #define I2C_CLIENT_MODULE_PARM_FORCE(name) \ 510 I2C_CLIENT_MODULE_PARM(force_##name, \ 511 "List of adapter,address pairs which are " \ 512 "unquestionably assumed to contain a `" \ 513 # name "' chip") 514 515 516 #define I2C_CLIENT_INSMOD_COMMON \ 517 I2C_CLIENT_MODULE_PARM(probe, "List of adapter,address pairs to scan " \ 518 "additionally"); \ 519 I2C_CLIENT_MODULE_PARM(ignore, "List of adapter,address pairs not to " \ 520 "scan"); \ 521 static struct i2c_client_address_data addr_data = { \ 522 .normal_i2c = normal_i2c, \ 523 .probe = probe, \ 524 .ignore = ignore, \ 525 .forces = forces, \ 526 } 527 528 /* These are the ones you want to use in your own drivers. Pick the one 529 which matches the number of devices the driver differenciates between. */ 530 #define I2C_CLIENT_INSMOD \ 531 I2C_CLIENT_MODULE_PARM(force, \ 532 "List of adapter,address pairs to boldly assume " \ 533 "to be present"); \ 534 static unsigned short *forces[] = { \ 535 force, \ 536 NULL \ 537 }; \ 538 I2C_CLIENT_INSMOD_COMMON 539 540 #define I2C_CLIENT_INSMOD_1(chip1) \ 541 enum chips { any_chip, chip1 }; \ 542 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ 543 "boldly assume to be present"); \ 544 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ 545 static unsigned short *forces[] = { force, force_##chip1, NULL }; \ 546 I2C_CLIENT_INSMOD_COMMON 547 548 #define I2C_CLIENT_INSMOD_2(chip1, chip2) \ 549 enum chips { any_chip, chip1, chip2 }; \ 550 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ 551 "boldly assume to be present"); \ 552 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ 553 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ 554 static unsigned short *forces[] = { force, force_##chip1, \ 555 force_##chip2, NULL }; \ 556 I2C_CLIENT_INSMOD_COMMON 557 558 #define I2C_CLIENT_INSMOD_3(chip1, chip2, chip3) \ 559 enum chips { any_chip, chip1, chip2, chip3 }; \ 560 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ 561 "boldly assume to be present"); \ 562 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ 563 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ 564 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \ 565 static unsigned short *forces[] = { force, force_##chip1, \ 566 force_##chip2, force_##chip3, \ 567 NULL }; \ 568 I2C_CLIENT_INSMOD_COMMON 569 570 #define I2C_CLIENT_INSMOD_4(chip1, chip2, chip3, chip4) \ 571 enum chips { any_chip, chip1, chip2, chip3, chip4 }; \ 572 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ 573 "boldly assume to be present"); \ 574 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ 575 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ 576 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \ 577 I2C_CLIENT_MODULE_PARM_FORCE(chip4); \ 578 static unsigned short *forces[] = { force, force_##chip1, \ 579 force_##chip2, force_##chip3, \ 580 force_##chip4, NULL}; \ 581 I2C_CLIENT_INSMOD_COMMON 582 583 #define I2C_CLIENT_INSMOD_5(chip1, chip2, chip3, chip4, chip5) \ 584 enum chips { any_chip, chip1, chip2, chip3, chip4, chip5 }; \ 585 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ 586 "boldly assume to be present"); \ 587 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ 588 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ 589 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \ 590 I2C_CLIENT_MODULE_PARM_FORCE(chip4); \ 591 I2C_CLIENT_MODULE_PARM_FORCE(chip5); \ 592 static unsigned short *forces[] = { force, force_##chip1, \ 593 force_##chip2, force_##chip3, \ 594 force_##chip4, force_##chip5, \ 595 NULL }; \ 596 I2C_CLIENT_INSMOD_COMMON 597 598 #define I2C_CLIENT_INSMOD_6(chip1, chip2, chip3, chip4, chip5, chip6) \ 599 enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6 }; \ 600 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ 601 "boldly assume to be present"); \ 602 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ 603 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ 604 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \ 605 I2C_CLIENT_MODULE_PARM_FORCE(chip4); \ 606 I2C_CLIENT_MODULE_PARM_FORCE(chip5); \ 607 I2C_CLIENT_MODULE_PARM_FORCE(chip6); \ 608 static unsigned short *forces[] = { force, force_##chip1, \ 609 force_##chip2, force_##chip3, \ 610 force_##chip4, force_##chip5, \ 611 force_##chip6, NULL }; \ 612 I2C_CLIENT_INSMOD_COMMON 613 614 #define I2C_CLIENT_INSMOD_7(chip1, chip2, chip3, chip4, chip5, chip6, chip7) \ 615 enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6, \ 616 chip7 }; \ 617 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ 618 "boldly assume to be present"); \ 619 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ 620 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ 621 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \ 622 I2C_CLIENT_MODULE_PARM_FORCE(chip4); \ 623 I2C_CLIENT_MODULE_PARM_FORCE(chip5); \ 624 I2C_CLIENT_MODULE_PARM_FORCE(chip6); \ 625 I2C_CLIENT_MODULE_PARM_FORCE(chip7); \ 626 static unsigned short *forces[] = { force, force_##chip1, \ 627 force_##chip2, force_##chip3, \ 628 force_##chip4, force_##chip5, \ 629 force_##chip6, force_##chip7, \ 630 NULL }; \ 631 I2C_CLIENT_INSMOD_COMMON 632 633 #define I2C_CLIENT_INSMOD_8(chip1, chip2, chip3, chip4, chip5, chip6, chip7, chip8) \ 634 enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6, \ 635 chip7, chip8 }; \ 636 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ 637 "boldly assume to be present"); \ 638 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ 639 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ 640 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \ 641 I2C_CLIENT_MODULE_PARM_FORCE(chip4); \ 642 I2C_CLIENT_MODULE_PARM_FORCE(chip5); \ 643 I2C_CLIENT_MODULE_PARM_FORCE(chip6); \ 644 I2C_CLIENT_MODULE_PARM_FORCE(chip7); \ 645 I2C_CLIENT_MODULE_PARM_FORCE(chip8); \ 646 static unsigned short *forces[] = { force, force_##chip1, \ 647 force_##chip2, force_##chip3, \ 648 force_##chip4, force_##chip5, \ 649 force_##chip6, force_##chip7, \ 650 force_##chip8, NULL }; \ 651 I2C_CLIENT_INSMOD_COMMON 652 #endif /* __KERNEL__ */ 653 #endif /* _LINUX_I2C_H */ 654