1 /* ------------------------------------------------------------------------- */
3 /* i2c.h - definitions for the i2c-bus interface */
5 /* ------------------------------------------------------------------------- */
6 /* Copyright (C) 1995-2000 Simon G. Vogl
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.
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.
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 /* ------------------------------------------------------------------------- */
23 /* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and
24 Frodo Looijaard <frodol@dds.nl> */
29 #include <linux/module.h>
30 #include <linux/types.h>
31 #include <linux/i2c-id.h>
32 #include <linux/mod_devicetable.h>
33 #include <linux/device.h> /* for struct device */
34 #include <linux/sched.h> /* for completion */
35 #include <asm/semaphore.h>
37 /* --- For i2c-isa ---------------------------------------------------- */
39 extern void i2c_adapter_dev_release(struct device *dev);
40 extern struct device_driver i2c_adapter_driver;
41 extern struct class i2c_adapter_class;
42 extern struct bus_type i2c_bus_type;
44 /* --- General options ------------------------------------------------ */
54 * The master routines are the ones normally used to transmit data to devices
55 * on a bus (or read from them). Apart from two basic transfer functions to
56 * transmit one message at a time, a more complex version can be used to
57 * transmit an arbitrary number of messages without interruption.
59 extern int i2c_master_send(struct i2c_client *,const char* ,int);
60 extern int i2c_master_recv(struct i2c_client *,char* ,int);
62 /* Transfer num messages.
64 extern int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num);
67 * Some adapter types (i.e. PCF 8584 based ones) may support slave behaviuor.
68 * This is not tested/implemented yet and will change in the future.
70 extern int i2c_slave_send(struct i2c_client *,char*,int);
71 extern int i2c_slave_recv(struct i2c_client *,char*,int);
75 /* This is the very generalized SMBus access routine. You probably do not
76 want to use this, though; one of the functions below may be much easier,
77 and probably just as fast.
78 Note that we use i2c_adapter here, because you do not need a specific
79 smbus adapter to call this function. */
80 extern s32 i2c_smbus_xfer (struct i2c_adapter * adapter, u16 addr,
82 char read_write, u8 command, int size,
83 union i2c_smbus_data * data);
85 /* Now follow the 'nice' access routines. These also document the calling
86 conventions of smbus_access. */
88 extern s32 i2c_smbus_write_quick(struct i2c_client * client, u8 value);
89 extern s32 i2c_smbus_read_byte(struct i2c_client * client);
90 extern s32 i2c_smbus_write_byte(struct i2c_client * client, u8 value);
91 extern s32 i2c_smbus_read_byte_data(struct i2c_client * client, u8 command);
92 extern s32 i2c_smbus_write_byte_data(struct i2c_client * client,
93 u8 command, u8 value);
94 extern s32 i2c_smbus_read_word_data(struct i2c_client * client, u8 command);
95 extern s32 i2c_smbus_write_word_data(struct i2c_client * client,
96 u8 command, u16 value);
97 extern s32 i2c_smbus_write_block_data(struct i2c_client * client,
98 u8 command, u8 length,
100 /* Returns the number of read bytes */
101 extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client * client,
102 u8 command, u8 *values);
105 * A driver is capable of handling one or more physical devices present on
106 * I2C adapters. This information is used to inform the driver of adapter
111 struct module *owner;
115 unsigned int flags; /* div., see below */
117 /* Notifies the driver that a new bus has appeared. This routine
118 * can be used by the driver to test if the bus meets its conditions
119 * & seek for the presence of the chip(s) it supports. If found, it
120 * registers the client(s) that are on the bus to the i2c admin. via
123 int (*attach_adapter)(struct i2c_adapter *);
124 int (*detach_adapter)(struct i2c_adapter *);
126 /* tells the driver that a client is about to be deleted & gives it
127 * the chance to remove its private data. Also, if the client struct
128 * has been dynamically allocated by the driver in the function above,
129 * it must be freed here.
131 int (*detach_client)(struct i2c_client *);
133 /* a ioctl like command that can be used to perform specific functions
136 int (*command)(struct i2c_client *client,unsigned int cmd, void *arg);
138 struct device_driver driver;
139 struct list_head list;
141 #define to_i2c_driver(d) container_of(d, struct i2c_driver, driver)
143 #define I2C_NAME_SIZE 50
146 * i2c_client identifies a single device (i.e. chip) that is connected to an
147 * i2c bus. The behaviour is defined by the routines of the driver. This
148 * function is mainly used for lookup & other admin. functions.
151 unsigned int flags; /* div., see below */
152 unsigned short addr; /* chip address - NOTE: 7bit */
153 /* addresses are stored in the */
155 struct i2c_adapter *adapter; /* the adapter we sit on */
156 struct i2c_driver *driver; /* and our access routines */
157 int usage_count; /* How many accesses currently */
159 struct device dev; /* the device structure */
160 struct list_head list;
161 char name[I2C_NAME_SIZE];
162 struct completion released;
164 #define to_i2c_client(d) container_of(d, struct i2c_client, dev)
166 static inline struct i2c_client *kobj_to_i2c_client(struct kobject *kobj)
168 return to_i2c_client(container_of(kobj, struct device, kobj));
171 static inline void *i2c_get_clientdata (struct i2c_client *dev)
173 return dev_get_drvdata (&dev->dev);
176 static inline void i2c_set_clientdata (struct i2c_client *dev, void *data)
178 dev_set_drvdata (&dev->dev, data);
182 * The following structs are for those who like to implement new bus drivers:
183 * i2c_algorithm is the interface to a class of hardware solutions which can
184 * be addressed using the same bus algorithms - i.e. bit-banging or the PCF8584
185 * to name two of the most common.
187 struct i2c_algorithm {
188 /* If an adapter algorithm can't do I2C-level access, set master_xfer
189 to NULL. If an adapter algorithm can do SMBus access, set
190 smbus_xfer. If set to NULL, the SMBus protocol is simulated
191 using common I2C messages */
192 int (*master_xfer)(struct i2c_adapter *adap,struct i2c_msg *msgs,
194 int (*smbus_xfer) (struct i2c_adapter *adap, u16 addr,
195 unsigned short flags, char read_write,
196 u8 command, int size, union i2c_smbus_data * data);
198 /* --- these optional/future use for some adapter types.*/
199 int (*slave_send)(struct i2c_adapter *,char*,int);
200 int (*slave_recv)(struct i2c_adapter *,char*,int);
202 /* --- ioctl like call to set div. parameters. */
203 int (*algo_control)(struct i2c_adapter *, unsigned int, unsigned long);
205 /* To determine what the adapter supports */
206 u32 (*functionality) (struct i2c_adapter *);
210 * i2c_adapter is the structure used to identify a physical i2c bus along
211 * with the access algorithms necessary to access it.
214 struct module *owner;
217 struct i2c_algorithm *algo;/* the algorithm to access the bus */
220 /* --- administration stuff. */
221 int (*client_register)(struct i2c_client *);
222 int (*client_unregister)(struct i2c_client *);
224 /* data fields that are valid for all devices */
225 struct semaphore bus_lock;
226 struct semaphore clist_lock;
230 struct device dev; /* the adapter device */
231 struct class_device class_dev; /* the class device */
234 struct list_head clients;
235 struct list_head list;
236 char name[I2C_NAME_SIZE];
237 struct completion dev_released;
238 struct completion class_dev_released;
240 #define dev_to_i2c_adapter(d) container_of(d, struct i2c_adapter, dev)
241 #define class_dev_to_i2c_adapter(d) container_of(d, struct i2c_adapter, class_dev)
243 static inline void *i2c_get_adapdata (struct i2c_adapter *dev)
245 return dev_get_drvdata (&dev->dev);
248 static inline void i2c_set_adapdata (struct i2c_adapter *dev, void *data)
250 dev_set_drvdata (&dev->dev, data);
253 /*flags for the driver struct: */
254 #define I2C_DF_NOTIFY 0x01 /* notify on bus (de/a)ttaches */
256 /* this flag is gone -- there is a (optional) driver->detach_adapter
257 * callback now which can be used instead */
258 # define I2C_DF_DUMMY 0x02
261 /*flags for the client struct: */
262 #define I2C_CLIENT_ALLOW_USE 0x01 /* Client allows access */
263 #define I2C_CLIENT_ALLOW_MULTIPLE_USE 0x02 /* Allow multiple access-locks */
264 /* on an i2c_client */
265 #define I2C_CLIENT_PEC 0x04 /* Use Packet Error Checking */
266 #define I2C_CLIENT_TEN 0x10 /* we have a ten bit chip address */
267 /* Must equal I2C_M_TEN below */
269 /* i2c adapter classes (bitmask) */
270 #define I2C_CLASS_HWMON (1<<0) /* lm_sensors, ... */
271 #define I2C_CLASS_TV_ANALOG (1<<1) /* bttv + friends */
272 #define I2C_CLASS_TV_DIGITAL (1<<2) /* dvb cards */
273 #define I2C_CLASS_DDC (1<<3) /* i2c-matroxfb ? */
274 #define I2C_CLASS_CAM_ANALOG (1<<4) /* camera with analog CCD */
275 #define I2C_CLASS_CAM_DIGITAL (1<<5) /* most webcams */
276 #define I2C_CLASS_SOUND (1<<6) /* sound devices */
277 #define I2C_CLASS_ALL (UINT_MAX) /* all of the above */
279 /* i2c_client_address_data is the struct for holding default client
280 * addresses for a driver and for the parameters supplied on the
283 struct i2c_client_address_data {
284 unsigned short *normal_i2c;
285 unsigned short *probe;
286 unsigned short *ignore;
287 unsigned short **forces;
290 /* Internal numbers to terminate lists */
291 #define I2C_CLIENT_END 0xfffeU
293 /* The numbers to use to set I2C bus address */
294 #define ANY_I2C_BUS 0xffff
295 #define ANY_I2C_ISA_BUS 9191
298 /* ----- functions exported by i2c.o */
302 extern int i2c_add_adapter(struct i2c_adapter *);
303 extern int i2c_del_adapter(struct i2c_adapter *);
305 extern int i2c_add_driver(struct i2c_driver *);
306 extern int i2c_del_driver(struct i2c_driver *);
308 extern int i2c_attach_client(struct i2c_client *);
309 extern int i2c_detach_client(struct i2c_client *);
311 /* New function: This is to get an i2c_client-struct for controlling the
312 client either by using i2c_control-function or having the
313 client-module export functions that can be used with the i2c_client
315 extern struct i2c_client *i2c_get_client(int driver_id, int adapter_id,
316 struct i2c_client *prev);
318 /* Should be used with new function
319 extern struct i2c_client *i2c_get_client(int,int,struct i2c_client *);
320 to make sure that client-struct is valid and that it is okay to access
322 returns -EACCES if client doesn't allow use (default)
323 returns -EBUSY if client doesn't allow multiple use (default) and
325 extern int i2c_use_client(struct i2c_client *);
326 extern int i2c_release_client(struct i2c_client *);
328 /* call the i2c_client->command() of all attached clients with
329 * the given arguments */
330 extern void i2c_clients_command(struct i2c_adapter *adap,
331 unsigned int cmd, void *arg);
333 /* returns -EBUSY if address has been taken, 0 if not. Note that the only
334 other place at which this is called is within i2c_attach_client; so
335 you can cheat by simply not registering. Not recommended, of course! */
336 extern int i2c_check_addr (struct i2c_adapter *adapter, int addr);
338 /* Detect function. It iterates over all possible addresses itself.
339 * It will only call found_proc if some client is connected at the
340 * specific address (unless a 'force' matched);
342 extern int i2c_probe(struct i2c_adapter *adapter,
343 struct i2c_client_address_data *address_data,
344 int (*found_proc) (struct i2c_adapter *, int, int));
346 /* An ioctl like call to set div. parameters of the adapter.
348 extern int i2c_control(struct i2c_client *,unsigned int, unsigned long);
350 extern struct i2c_adapter* i2c_get_adapter(int id);
351 extern void i2c_put_adapter(struct i2c_adapter *adap);
354 /* Return the functionality mask */
355 static inline u32 i2c_get_functionality(struct i2c_adapter *adap)
357 return adap->algo->functionality(adap);
360 /* Return 1 if adapter supports everything we need, 0 if not. */
361 static inline int i2c_check_functionality(struct i2c_adapter *adap, u32 func)
363 return (func & i2c_get_functionality(adap)) == func;
366 /* Return id number for a specific adapter */
367 static inline int i2c_adapter_id(struct i2c_adapter *adap)
373 * I2C Message - used for pure i2c transaction, also from /dev interface
376 __u16 addr; /* slave address */
378 #define I2C_M_TEN 0x10 /* we have a ten bit chip address */
379 #define I2C_M_RD 0x01
380 #define I2C_M_NOSTART 0x4000
381 #define I2C_M_REV_DIR_ADDR 0x2000
382 #define I2C_M_IGNORE_NAK 0x1000
383 #define I2C_M_NO_RD_ACK 0x0800
384 __u16 len; /* msg length */
385 __u8 *buf; /* pointer to msg data */
388 /* To determine what functionality is present */
390 #define I2C_FUNC_I2C 0x00000001
391 #define I2C_FUNC_10BIT_ADDR 0x00000002
392 #define I2C_FUNC_PROTOCOL_MANGLING 0x00000004 /* I2C_M_{REV_DIR_ADDR,NOSTART,..} */
393 #define I2C_FUNC_SMBUS_HWPEC_CALC 0x00000008 /* SMBus 2.0 */
394 #define I2C_FUNC_SMBUS_BLOCK_PROC_CALL 0x00008000 /* SMBus 2.0 */
395 #define I2C_FUNC_SMBUS_QUICK 0x00010000
396 #define I2C_FUNC_SMBUS_READ_BYTE 0x00020000
397 #define I2C_FUNC_SMBUS_WRITE_BYTE 0x00040000
398 #define I2C_FUNC_SMBUS_READ_BYTE_DATA 0x00080000
399 #define I2C_FUNC_SMBUS_WRITE_BYTE_DATA 0x00100000
400 #define I2C_FUNC_SMBUS_READ_WORD_DATA 0x00200000
401 #define I2C_FUNC_SMBUS_WRITE_WORD_DATA 0x00400000
402 #define I2C_FUNC_SMBUS_PROC_CALL 0x00800000
403 #define I2C_FUNC_SMBUS_READ_BLOCK_DATA 0x01000000
404 #define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA 0x02000000
405 #define I2C_FUNC_SMBUS_READ_I2C_BLOCK 0x04000000 /* I2C-like block xfer */
406 #define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK 0x08000000 /* w/ 1-byte reg. addr. */
407 #define I2C_FUNC_SMBUS_READ_I2C_BLOCK_2 0x10000000 /* I2C-like block xfer */
408 #define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK_2 0x20000000 /* w/ 2-byte reg. addr. */
410 #define I2C_FUNC_SMBUS_BYTE (I2C_FUNC_SMBUS_READ_BYTE | \
411 I2C_FUNC_SMBUS_WRITE_BYTE)
412 #define I2C_FUNC_SMBUS_BYTE_DATA (I2C_FUNC_SMBUS_READ_BYTE_DATA | \
413 I2C_FUNC_SMBUS_WRITE_BYTE_DATA)
414 #define I2C_FUNC_SMBUS_WORD_DATA (I2C_FUNC_SMBUS_READ_WORD_DATA | \
415 I2C_FUNC_SMBUS_WRITE_WORD_DATA)
416 #define I2C_FUNC_SMBUS_BLOCK_DATA (I2C_FUNC_SMBUS_READ_BLOCK_DATA | \
417 I2C_FUNC_SMBUS_WRITE_BLOCK_DATA)
418 #define I2C_FUNC_SMBUS_I2C_BLOCK (I2C_FUNC_SMBUS_READ_I2C_BLOCK | \
419 I2C_FUNC_SMBUS_WRITE_I2C_BLOCK)
420 #define I2C_FUNC_SMBUS_I2C_BLOCK_2 (I2C_FUNC_SMBUS_READ_I2C_BLOCK_2 | \
421 I2C_FUNC_SMBUS_WRITE_I2C_BLOCK_2)
423 #define I2C_FUNC_SMBUS_EMUL (I2C_FUNC_SMBUS_QUICK | \
424 I2C_FUNC_SMBUS_BYTE | \
425 I2C_FUNC_SMBUS_BYTE_DATA | \
426 I2C_FUNC_SMBUS_WORD_DATA | \
427 I2C_FUNC_SMBUS_PROC_CALL | \
428 I2C_FUNC_SMBUS_WRITE_BLOCK_DATA | \
429 I2C_FUNC_SMBUS_I2C_BLOCK)
432 * Data for SMBus Messages
434 #define I2C_SMBUS_BLOCK_MAX 32 /* As specified in SMBus standard */
435 union i2c_smbus_data {
438 __u8 block[I2C_SMBUS_BLOCK_MAX + 2]; /* block[0] is used for length */
439 /* and one more for user-space compatibility */
442 /* smbus_access read or write markers */
443 #define I2C_SMBUS_READ 1
444 #define I2C_SMBUS_WRITE 0
446 /* SMBus transaction types (size parameter in the above functions)
447 Note: these no longer correspond to the (arbitrary) PIIX4 internal codes! */
448 #define I2C_SMBUS_QUICK 0
449 #define I2C_SMBUS_BYTE 1
450 #define I2C_SMBUS_BYTE_DATA 2
451 #define I2C_SMBUS_WORD_DATA 3
452 #define I2C_SMBUS_PROC_CALL 4
453 #define I2C_SMBUS_BLOCK_DATA 5
454 #define I2C_SMBUS_I2C_BLOCK_DATA 6
455 #define I2C_SMBUS_BLOCK_PROC_CALL 7 /* SMBus 2.0 */
458 /* ----- commands for the ioctl like i2c_command call:
459 * note that additional calls are defined in the algorithm and hw
460 * dependent layers - these can be listed here, or see the
461 * corresponding header files.
463 /* -> bit-adapter specific ioctls */
464 #define I2C_RETRIES 0x0701 /* number of times a device address */
465 /* should be polled when not */
467 #define I2C_TIMEOUT 0x0702 /* set timeout - call with int */
470 /* this is for i2c-dev.c */
471 #define I2C_SLAVE 0x0703 /* Change slave address */
472 /* Attn.: Slave address is 7 or 10 bits */
473 #define I2C_SLAVE_FORCE 0x0706 /* Change slave address */
474 /* Attn.: Slave address is 7 or 10 bits */
475 /* This changes the address, even if it */
476 /* is already taken! */
477 #define I2C_TENBIT 0x0704 /* 0 for 7 bit addrs, != 0 for 10 bit */
479 #define I2C_FUNCS 0x0705 /* Get the adapter functionality */
480 #define I2C_RDWR 0x0707 /* Combined R/W transfer (one stop only)*/
481 #define I2C_PEC 0x0708 /* != 0 for SMBus PEC */
483 #define I2C_SMBUS 0x0720 /* SMBus-level access */
485 /* ----- I2C-DEV: char device interface stuff ------------------------- */
487 #define I2C_MAJOR 89 /* Device major number */
489 /* These defines are used for probing i2c client addresses */
490 /* The length of the option lists */
491 #define I2C_CLIENT_MAX_OPTS 48
493 /* Default fill of many variables */
494 #define I2C_CLIENT_DEFAULTS {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 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
500 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
501 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
502 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
503 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
504 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
505 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
506 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
507 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
508 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
509 I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END}
511 /* I2C_CLIENT_MODULE_PARM creates a module parameter, and puts it in the
514 #define I2C_CLIENT_MODULE_PARM(var,desc) \
515 static unsigned short var[I2C_CLIENT_MAX_OPTS] = I2C_CLIENT_DEFAULTS; \
516 static unsigned int var##_num; \
517 module_param_array(var, short, &var##_num, 0); \
518 MODULE_PARM_DESC(var,desc)
520 #define I2C_CLIENT_MODULE_PARM_FORCE(name) \
521 I2C_CLIENT_MODULE_PARM(force_##name, \
522 "List of adapter,address pairs which are " \
523 "unquestionably assumed to contain a `" \
527 #define I2C_CLIENT_INSMOD_COMMON \
528 I2C_CLIENT_MODULE_PARM(probe, "List of adapter,address pairs to scan " \
530 I2C_CLIENT_MODULE_PARM(ignore, "List of adapter,address pairs not to " \
532 static struct i2c_client_address_data addr_data = { \
533 .normal_i2c = normal_i2c, \
539 /* These are the ones you want to use in your own drivers. Pick the one
540 which matches the number of devices the driver differenciates between. */
541 #define I2C_CLIENT_INSMOD \
542 I2C_CLIENT_MODULE_PARM(force, \
543 "List of adapter,address pairs to boldly assume " \
545 static unsigned short *forces[] = { \
549 I2C_CLIENT_INSMOD_COMMON
551 #define I2C_CLIENT_INSMOD_1(chip1) \
552 enum chips { any_chip, chip1 }; \
553 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \
554 "boldly assume to be present"); \
555 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \
556 static unsigned short *forces[] = { force, force_##chip1, NULL }; \
557 I2C_CLIENT_INSMOD_COMMON
559 #define I2C_CLIENT_INSMOD_2(chip1, chip2) \
560 enum chips { any_chip, chip1, chip2 }; \
561 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \
562 "boldly assume to be present"); \
563 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \
564 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \
565 static unsigned short *forces[] = { force, force_##chip1, \
566 force_##chip2, NULL }; \
567 I2C_CLIENT_INSMOD_COMMON
569 #define I2C_CLIENT_INSMOD_3(chip1, chip2, chip3) \
570 enum chips { any_chip, chip1, chip2, chip3 }; \
571 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \
572 "boldly assume to be present"); \
573 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \
574 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \
575 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \
576 static unsigned short *forces[] = { force, force_##chip1, \
577 force_##chip2, force_##chip3, \
579 I2C_CLIENT_INSMOD_COMMON
581 #define I2C_CLIENT_INSMOD_4(chip1, chip2, chip3, chip4) \
582 enum chips { any_chip, chip1, chip2, chip3, chip4 }; \
583 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \
584 "boldly assume to be present"); \
585 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \
586 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \
587 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \
588 I2C_CLIENT_MODULE_PARM_FORCE(chip4); \
589 static unsigned short *forces[] = { force, force_##chip1, \
590 force_##chip2, force_##chip3, \
591 force_##chip4, NULL}; \
592 I2C_CLIENT_INSMOD_COMMON
594 #define I2C_CLIENT_INSMOD_5(chip1, chip2, chip3, chip4, chip5) \
595 enum chips { any_chip, chip1, chip2, chip3, chip4, chip5 }; \
596 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \
597 "boldly assume to be present"); \
598 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \
599 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \
600 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \
601 I2C_CLIENT_MODULE_PARM_FORCE(chip4); \
602 I2C_CLIENT_MODULE_PARM_FORCE(chip5); \
603 static unsigned short *forces[] = { force, force_##chip1, \
604 force_##chip2, force_##chip3, \
605 force_##chip4, force_##chip5, \
607 I2C_CLIENT_INSMOD_COMMON
609 #define I2C_CLIENT_INSMOD_6(chip1, chip2, chip3, chip4, chip5, chip6) \
610 enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6 }; \
611 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \
612 "boldly assume to be present"); \
613 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \
614 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \
615 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \
616 I2C_CLIENT_MODULE_PARM_FORCE(chip4); \
617 I2C_CLIENT_MODULE_PARM_FORCE(chip5); \
618 I2C_CLIENT_MODULE_PARM_FORCE(chip6); \
619 static unsigned short *forces[] = { force, force_##chip1, \
620 force_##chip2, force_##chip3, \
621 force_##chip4, force_##chip5, \
622 force_##chip6, NULL }; \
623 I2C_CLIENT_INSMOD_COMMON
625 #define I2C_CLIENT_INSMOD_7(chip1, chip2, chip3, chip4, chip5, chip6, chip7) \
626 enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6, \
628 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \
629 "boldly assume to be present"); \
630 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \
631 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \
632 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \
633 I2C_CLIENT_MODULE_PARM_FORCE(chip4); \
634 I2C_CLIENT_MODULE_PARM_FORCE(chip5); \
635 I2C_CLIENT_MODULE_PARM_FORCE(chip6); \
636 I2C_CLIENT_MODULE_PARM_FORCE(chip7); \
637 static unsigned short *forces[] = { force, force_##chip1, \
638 force_##chip2, force_##chip3, \
639 force_##chip4, force_##chip5, \
640 force_##chip6, force_##chip7, \
642 I2C_CLIENT_INSMOD_COMMON
644 #define I2C_CLIENT_INSMOD_8(chip1, chip2, chip3, chip4, chip5, chip6, chip7, chip8) \
645 enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6, \
647 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \
648 "boldly assume to be present"); \
649 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \
650 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \
651 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \
652 I2C_CLIENT_MODULE_PARM_FORCE(chip4); \
653 I2C_CLIENT_MODULE_PARM_FORCE(chip5); \
654 I2C_CLIENT_MODULE_PARM_FORCE(chip6); \
655 I2C_CLIENT_MODULE_PARM_FORCE(chip7); \
656 I2C_CLIENT_MODULE_PARM_FORCE(chip8); \
657 static unsigned short *forces[] = { force, force_##chip1, \
658 force_##chip2, force_##chip3, \
659 force_##chip4, force_##chip5, \
660 force_##chip6, force_##chip7, \
661 force_##chip8, NULL }; \
662 I2C_CLIENT_INSMOD_COMMON
664 #endif /* _LINUX_I2C_H */