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/types.h>
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>
38 /* --- For i2c-isa ---------------------------------------------------- */
40 extern void i2c_adapter_dev_release(struct device *dev);
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 /* This is the very generalized SMBus access routine. You probably do not
68 want to use this, though; one of the functions below may be much easier,
69 and probably just as fast.
70 Note that we use i2c_adapter here, because you do not need a specific
71 smbus adapter to call this function. */
72 extern s32 i2c_smbus_xfer (struct i2c_adapter * adapter, u16 addr,
74 char read_write, u8 command, int size,
75 union i2c_smbus_data * data);
77 /* Now follow the 'nice' access routines. These also document the calling
78 conventions of smbus_access. */
80 extern s32 i2c_smbus_write_quick(struct i2c_client * client, u8 value);
81 extern s32 i2c_smbus_read_byte(struct i2c_client * client);
82 extern s32 i2c_smbus_write_byte(struct i2c_client * client, u8 value);
83 extern s32 i2c_smbus_read_byte_data(struct i2c_client * client, u8 command);
84 extern s32 i2c_smbus_write_byte_data(struct i2c_client * client,
85 u8 command, u8 value);
86 extern s32 i2c_smbus_read_word_data(struct i2c_client * client, u8 command);
87 extern s32 i2c_smbus_write_word_data(struct i2c_client * client,
88 u8 command, u16 value);
89 extern s32 i2c_smbus_write_block_data(struct i2c_client * client,
90 u8 command, u8 length,
92 /* Returns the number of read bytes */
93 extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client * client,
94 u8 command, u8 *values);
95 extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client * client,
96 u8 command, u8 length,
100 * A driver is capable of handling one or more physical devices present on
101 * I2C adapters. This information is used to inform the driver of adapter
104 * The driver.owner field should be set to the module owner of this driver.
105 * The driver.name field should be set to the name of this driver.
112 /* Notifies the driver that a new bus has appeared. This routine
113 * can be used by the driver to test if the bus meets its conditions
114 * & seek for the presence of the chip(s) it supports. If found, it
115 * registers the client(s) that are on the bus to the i2c admin. via
116 * i2c_attach_client. (LEGACY I2C DRIVERS ONLY)
118 int (*attach_adapter)(struct i2c_adapter *);
119 int (*detach_adapter)(struct i2c_adapter *);
121 /* tells the driver that a client is about to be deleted & gives it
122 * the chance to remove its private data. Also, if the client struct
123 * has been dynamically allocated by the driver in the function above,
124 * it must be freed here. (LEGACY I2C DRIVERS ONLY)
126 int (*detach_client)(struct i2c_client *);
128 /* Standard driver model interfaces, for "new style" i2c drivers.
129 * With the driver model, device enumeration is NEVER done by drivers;
130 * it's done by infrastructure. (NEW STYLE DRIVERS ONLY)
132 int (*probe)(struct i2c_client *);
133 int (*remove)(struct i2c_client *);
135 /* driver model interfaces that don't relate to enumeration */
136 void (*shutdown)(struct i2c_client *);
137 int (*suspend)(struct i2c_client *, pm_message_t mesg);
138 int (*resume)(struct i2c_client *);
140 /* a ioctl like command that can be used to perform specific functions
143 int (*command)(struct i2c_client *client,unsigned int cmd, void *arg);
145 struct device_driver driver;
146 struct list_head list;
148 #define to_i2c_driver(d) container_of(d, struct i2c_driver, driver)
150 #define I2C_NAME_SIZE 20
153 * struct i2c_client - represent an I2C slave device
154 * @addr: Address used on the I2C bus connected to the parent adapter.
155 * @name: Indicates the type of the device, usually a chip name that's
156 * generic enough to hide second-sourcing and compatible revisions.
157 * @dev: Driver model device node for the slave.
158 * @driver_name: Identifies new-style driver used with this device; also
159 * used as the module name for hotplug/coldplug modprobe support.
161 * An i2c_client identifies a single device (i.e. chip) connected to an
162 * i2c bus. The behaviour is defined by the routines of the driver.
165 unsigned short flags; /* div., see below */
166 unsigned short addr; /* chip address - NOTE: 7bit */
167 /* addresses are stored in the */
169 char name[I2C_NAME_SIZE];
170 struct i2c_adapter *adapter; /* the adapter we sit on */
171 struct i2c_driver *driver; /* and our access routines */
172 int usage_count; /* How many accesses currently */
174 struct device dev; /* the device structure */
175 char driver_name[KOBJ_NAME_LEN];
176 struct list_head list;
177 struct completion released;
179 #define to_i2c_client(d) container_of(d, struct i2c_client, dev)
181 static inline struct i2c_client *kobj_to_i2c_client(struct kobject *kobj)
183 return to_i2c_client(container_of(kobj, struct device, kobj));
186 static inline void *i2c_get_clientdata (struct i2c_client *dev)
188 return dev_get_drvdata (&dev->dev);
191 static inline void i2c_set_clientdata (struct i2c_client *dev, void *data)
193 dev_set_drvdata (&dev->dev, data);
197 * The following structs are for those who like to implement new bus drivers:
198 * i2c_algorithm is the interface to a class of hardware solutions which can
199 * be addressed using the same bus algorithms - i.e. bit-banging or the PCF8584
200 * to name two of the most common.
202 struct i2c_algorithm {
203 /* If an adapter algorithm can't do I2C-level access, set master_xfer
204 to NULL. If an adapter algorithm can do SMBus access, set
205 smbus_xfer. If set to NULL, the SMBus protocol is simulated
206 using common I2C messages */
207 /* master_xfer should return the number of messages successfully
208 processed, or a negative value on error */
209 int (*master_xfer)(struct i2c_adapter *adap,struct i2c_msg *msgs,
211 int (*smbus_xfer) (struct i2c_adapter *adap, u16 addr,
212 unsigned short flags, char read_write,
213 u8 command, int size, union i2c_smbus_data * data);
215 /* --- ioctl like call to set div. parameters. */
216 int (*algo_control)(struct i2c_adapter *, unsigned int, unsigned long);
218 /* To determine what the adapter supports */
219 u32 (*functionality) (struct i2c_adapter *);
223 * i2c_adapter is the structure used to identify a physical i2c bus along
224 * with the access algorithms necessary to access it.
227 struct module *owner;
230 const struct i2c_algorithm *algo; /* the algorithm to access the bus */
233 /* --- administration stuff. */
234 int (*client_register)(struct i2c_client *);
235 int (*client_unregister)(struct i2c_client *);
237 /* data fields that are valid for all devices */
238 u8 level; /* nesting level for lockdep */
239 struct mutex bus_lock;
240 struct mutex clist_lock;
244 struct device dev; /* the adapter device */
247 struct list_head clients;
248 struct list_head list;
250 struct completion dev_released;
252 #define to_i2c_adapter(d) container_of(d, struct i2c_adapter, dev)
254 static inline void *i2c_get_adapdata (struct i2c_adapter *dev)
256 return dev_get_drvdata (&dev->dev);
259 static inline void i2c_set_adapdata (struct i2c_adapter *dev, void *data)
261 dev_set_drvdata (&dev->dev, data);
264 /*flags for the client struct: */
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_register_driver(struct module *, struct i2c_driver *);
306 extern int i2c_del_driver(struct i2c_driver *);
308 static inline int i2c_add_driver(struct i2c_driver *driver)
310 return i2c_register_driver(THIS_MODULE, driver);
313 extern int i2c_attach_client(struct i2c_client *);
314 extern int i2c_detach_client(struct i2c_client *);
316 /* Should be used to make sure that client-struct is valid and that it
317 is okay to access the i2c-client.
318 returns -ENODEV if client has gone in the meantime */
319 extern int i2c_use_client(struct i2c_client *);
320 extern int i2c_release_client(struct i2c_client *);
322 /* call the i2c_client->command() of all attached clients with
323 * the given arguments */
324 extern void i2c_clients_command(struct i2c_adapter *adap,
325 unsigned int cmd, void *arg);
327 /* returns -EBUSY if address has been taken, 0 if not. Note that the only
328 other place at which this is called is within i2c_attach_client; so
329 you can cheat by simply not registering. Not recommended, of course! */
330 extern int i2c_check_addr (struct i2c_adapter *adapter, int addr);
332 /* Detect function. It iterates over all possible addresses itself.
333 * It will only call found_proc if some client is connected at the
334 * specific address (unless a 'force' matched);
336 extern int i2c_probe(struct i2c_adapter *adapter,
337 struct i2c_client_address_data *address_data,
338 int (*found_proc) (struct i2c_adapter *, int, int));
340 /* An ioctl like call to set div. parameters of the adapter.
342 extern int i2c_control(struct i2c_client *,unsigned int, unsigned long);
344 extern struct i2c_adapter* i2c_get_adapter(int id);
345 extern void i2c_put_adapter(struct i2c_adapter *adap);
348 /* Return the functionality mask */
349 static inline u32 i2c_get_functionality(struct i2c_adapter *adap)
351 return adap->algo->functionality(adap);
354 /* Return 1 if adapter supports everything we need, 0 if not. */
355 static inline int i2c_check_functionality(struct i2c_adapter *adap, u32 func)
357 return (func & i2c_get_functionality(adap)) == func;
360 /* Return id number for a specific adapter */
361 static inline int i2c_adapter_id(struct i2c_adapter *adap)
365 #endif /* __KERNEL__ */
368 * I2C Message - used for pure i2c transaction, also from /dev interface
371 __u16 addr; /* slave address */
373 #define I2C_M_TEN 0x10 /* we have a ten bit chip address */
374 #define I2C_M_RD 0x01
375 #define I2C_M_NOSTART 0x4000
376 #define I2C_M_REV_DIR_ADDR 0x2000
377 #define I2C_M_IGNORE_NAK 0x1000
378 #define I2C_M_NO_RD_ACK 0x0800
379 #define I2C_M_RECV_LEN 0x0400 /* length will be first received byte */
380 __u16 len; /* msg length */
381 __u8 *buf; /* pointer to msg data */
384 /* To determine what functionality is present */
386 #define I2C_FUNC_I2C 0x00000001
387 #define I2C_FUNC_10BIT_ADDR 0x00000002
388 #define I2C_FUNC_PROTOCOL_MANGLING 0x00000004 /* I2C_M_{REV_DIR_ADDR,NOSTART,..} */
389 #define I2C_FUNC_SMBUS_HWPEC_CALC 0x00000008 /* SMBus 2.0 */
390 #define I2C_FUNC_SMBUS_BLOCK_PROC_CALL 0x00008000 /* SMBus 2.0 */
391 #define I2C_FUNC_SMBUS_QUICK 0x00010000
392 #define I2C_FUNC_SMBUS_READ_BYTE 0x00020000
393 #define I2C_FUNC_SMBUS_WRITE_BYTE 0x00040000
394 #define I2C_FUNC_SMBUS_READ_BYTE_DATA 0x00080000
395 #define I2C_FUNC_SMBUS_WRITE_BYTE_DATA 0x00100000
396 #define I2C_FUNC_SMBUS_READ_WORD_DATA 0x00200000
397 #define I2C_FUNC_SMBUS_WRITE_WORD_DATA 0x00400000
398 #define I2C_FUNC_SMBUS_PROC_CALL 0x00800000
399 #define I2C_FUNC_SMBUS_READ_BLOCK_DATA 0x01000000
400 #define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA 0x02000000
401 #define I2C_FUNC_SMBUS_READ_I2C_BLOCK 0x04000000 /* I2C-like block xfer */
402 #define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK 0x08000000 /* w/ 1-byte reg. addr. */
403 #define I2C_FUNC_SMBUS_READ_I2C_BLOCK_2 0x10000000 /* I2C-like block xfer */
404 #define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK_2 0x20000000 /* w/ 2-byte reg. addr. */
406 #define I2C_FUNC_SMBUS_BYTE (I2C_FUNC_SMBUS_READ_BYTE | \
407 I2C_FUNC_SMBUS_WRITE_BYTE)
408 #define I2C_FUNC_SMBUS_BYTE_DATA (I2C_FUNC_SMBUS_READ_BYTE_DATA | \
409 I2C_FUNC_SMBUS_WRITE_BYTE_DATA)
410 #define I2C_FUNC_SMBUS_WORD_DATA (I2C_FUNC_SMBUS_READ_WORD_DATA | \
411 I2C_FUNC_SMBUS_WRITE_WORD_DATA)
412 #define I2C_FUNC_SMBUS_BLOCK_DATA (I2C_FUNC_SMBUS_READ_BLOCK_DATA | \
413 I2C_FUNC_SMBUS_WRITE_BLOCK_DATA)
414 #define I2C_FUNC_SMBUS_I2C_BLOCK (I2C_FUNC_SMBUS_READ_I2C_BLOCK | \
415 I2C_FUNC_SMBUS_WRITE_I2C_BLOCK)
416 #define I2C_FUNC_SMBUS_I2C_BLOCK_2 (I2C_FUNC_SMBUS_READ_I2C_BLOCK_2 | \
417 I2C_FUNC_SMBUS_WRITE_I2C_BLOCK_2)
419 #define I2C_FUNC_SMBUS_EMUL (I2C_FUNC_SMBUS_QUICK | \
420 I2C_FUNC_SMBUS_BYTE | \
421 I2C_FUNC_SMBUS_BYTE_DATA | \
422 I2C_FUNC_SMBUS_WORD_DATA | \
423 I2C_FUNC_SMBUS_PROC_CALL | \
424 I2C_FUNC_SMBUS_WRITE_BLOCK_DATA | \
425 I2C_FUNC_SMBUS_I2C_BLOCK)
428 * Data for SMBus Messages
430 #define I2C_SMBUS_BLOCK_MAX 32 /* As specified in SMBus standard */
431 union i2c_smbus_data {
434 __u8 block[I2C_SMBUS_BLOCK_MAX + 2]; /* block[0] is used for length */
435 /* and one more for user-space compatibility */
438 /* smbus_access read or write markers */
439 #define I2C_SMBUS_READ 1
440 #define I2C_SMBUS_WRITE 0
442 /* SMBus transaction types (size parameter in the above functions)
443 Note: these no longer correspond to the (arbitrary) PIIX4 internal codes! */
444 #define I2C_SMBUS_QUICK 0
445 #define I2C_SMBUS_BYTE 1
446 #define I2C_SMBUS_BYTE_DATA 2
447 #define I2C_SMBUS_WORD_DATA 3
448 #define I2C_SMBUS_PROC_CALL 4
449 #define I2C_SMBUS_BLOCK_DATA 5
450 #define I2C_SMBUS_I2C_BLOCK_DATA 6
451 #define I2C_SMBUS_BLOCK_PROC_CALL 7 /* SMBus 2.0 */
454 /* ----- commands for the ioctl like i2c_command call:
455 * note that additional calls are defined in the algorithm and hw
456 * dependent layers - these can be listed here, or see the
457 * corresponding header files.
459 /* -> bit-adapter specific ioctls */
460 #define I2C_RETRIES 0x0701 /* number of times a device address */
461 /* should be polled when not */
463 #define I2C_TIMEOUT 0x0702 /* set timeout - call with int */
466 /* this is for i2c-dev.c */
467 #define I2C_SLAVE 0x0703 /* Change slave address */
468 /* Attn.: Slave address is 7 or 10 bits */
469 #define I2C_SLAVE_FORCE 0x0706 /* Change slave address */
470 /* Attn.: Slave address is 7 or 10 bits */
471 /* This changes the address, even if it */
472 /* is already taken! */
473 #define I2C_TENBIT 0x0704 /* 0 for 7 bit addrs, != 0 for 10 bit */
475 #define I2C_FUNCS 0x0705 /* Get the adapter functionality */
476 #define I2C_RDWR 0x0707 /* Combined R/W transfer (one stop only)*/
477 #define I2C_PEC 0x0708 /* != 0 for SMBus PEC */
479 #define I2C_SMBUS 0x0720 /* SMBus-level access */
481 /* ----- I2C-DEV: char device interface stuff ------------------------- */
484 #define I2C_MAJOR 89 /* Device major number */
486 /* These defines are used for probing i2c client addresses */
487 /* The length of the option lists */
488 #define I2C_CLIENT_MAX_OPTS 48
490 /* Default fill of many variables */
491 #define I2C_CLIENT_DEFAULTS {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 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}
508 /* I2C_CLIENT_MODULE_PARM creates a module parameter, and puts it in the
511 #define I2C_CLIENT_MODULE_PARM(var,desc) \
512 static unsigned short var[I2C_CLIENT_MAX_OPTS] = I2C_CLIENT_DEFAULTS; \
513 static unsigned int var##_num; \
514 module_param_array(var, short, &var##_num, 0); \
515 MODULE_PARM_DESC(var,desc)
517 #define I2C_CLIENT_MODULE_PARM_FORCE(name) \
518 I2C_CLIENT_MODULE_PARM(force_##name, \
519 "List of adapter,address pairs which are " \
520 "unquestionably assumed to contain a `" \
524 #define I2C_CLIENT_INSMOD_COMMON \
525 I2C_CLIENT_MODULE_PARM(probe, "List of adapter,address pairs to scan " \
527 I2C_CLIENT_MODULE_PARM(ignore, "List of adapter,address pairs not to " \
529 static struct i2c_client_address_data addr_data = { \
530 .normal_i2c = normal_i2c, \
536 /* These are the ones you want to use in your own drivers. Pick the one
537 which matches the number of devices the driver differenciates between. */
538 #define I2C_CLIENT_INSMOD \
539 I2C_CLIENT_MODULE_PARM(force, \
540 "List of adapter,address pairs to boldly assume " \
542 static unsigned short *forces[] = { \
546 I2C_CLIENT_INSMOD_COMMON
548 #define I2C_CLIENT_INSMOD_1(chip1) \
549 enum chips { any_chip, chip1 }; \
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 static unsigned short *forces[] = { force, force_##chip1, NULL }; \
554 I2C_CLIENT_INSMOD_COMMON
556 #define I2C_CLIENT_INSMOD_2(chip1, chip2) \
557 enum chips { any_chip, chip1, chip2 }; \
558 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \
559 "boldly assume to be present"); \
560 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \
561 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \
562 static unsigned short *forces[] = { force, force_##chip1, \
563 force_##chip2, NULL }; \
564 I2C_CLIENT_INSMOD_COMMON
566 #define I2C_CLIENT_INSMOD_3(chip1, chip2, chip3) \
567 enum chips { any_chip, chip1, chip2, chip3 }; \
568 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \
569 "boldly assume to be present"); \
570 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \
571 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \
572 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \
573 static unsigned short *forces[] = { force, force_##chip1, \
574 force_##chip2, force_##chip3, \
576 I2C_CLIENT_INSMOD_COMMON
578 #define I2C_CLIENT_INSMOD_4(chip1, chip2, chip3, chip4) \
579 enum chips { any_chip, chip1, chip2, chip3, chip4 }; \
580 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \
581 "boldly assume to be present"); \
582 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \
583 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \
584 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \
585 I2C_CLIENT_MODULE_PARM_FORCE(chip4); \
586 static unsigned short *forces[] = { force, force_##chip1, \
587 force_##chip2, force_##chip3, \
588 force_##chip4, NULL}; \
589 I2C_CLIENT_INSMOD_COMMON
591 #define I2C_CLIENT_INSMOD_5(chip1, chip2, chip3, chip4, chip5) \
592 enum chips { any_chip, chip1, chip2, chip3, chip4, chip5 }; \
593 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \
594 "boldly assume to be present"); \
595 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \
596 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \
597 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \
598 I2C_CLIENT_MODULE_PARM_FORCE(chip4); \
599 I2C_CLIENT_MODULE_PARM_FORCE(chip5); \
600 static unsigned short *forces[] = { force, force_##chip1, \
601 force_##chip2, force_##chip3, \
602 force_##chip4, force_##chip5, \
604 I2C_CLIENT_INSMOD_COMMON
606 #define I2C_CLIENT_INSMOD_6(chip1, chip2, chip3, chip4, chip5, chip6) \
607 enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6 }; \
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 static unsigned short *forces[] = { force, force_##chip1, \
617 force_##chip2, force_##chip3, \
618 force_##chip4, force_##chip5, \
619 force_##chip6, NULL }; \
620 I2C_CLIENT_INSMOD_COMMON
622 #define I2C_CLIENT_INSMOD_7(chip1, chip2, chip3, chip4, chip5, chip6, chip7) \
623 enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6, \
625 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \
626 "boldly assume to be present"); \
627 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \
628 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \
629 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \
630 I2C_CLIENT_MODULE_PARM_FORCE(chip4); \
631 I2C_CLIENT_MODULE_PARM_FORCE(chip5); \
632 I2C_CLIENT_MODULE_PARM_FORCE(chip6); \
633 I2C_CLIENT_MODULE_PARM_FORCE(chip7); \
634 static unsigned short *forces[] = { force, force_##chip1, \
635 force_##chip2, force_##chip3, \
636 force_##chip4, force_##chip5, \
637 force_##chip6, force_##chip7, \
639 I2C_CLIENT_INSMOD_COMMON
641 #define I2C_CLIENT_INSMOD_8(chip1, chip2, chip3, chip4, chip5, chip6, chip7, chip8) \
642 enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6, \
644 I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \
645 "boldly assume to be present"); \
646 I2C_CLIENT_MODULE_PARM_FORCE(chip1); \
647 I2C_CLIENT_MODULE_PARM_FORCE(chip2); \
648 I2C_CLIENT_MODULE_PARM_FORCE(chip3); \
649 I2C_CLIENT_MODULE_PARM_FORCE(chip4); \
650 I2C_CLIENT_MODULE_PARM_FORCE(chip5); \
651 I2C_CLIENT_MODULE_PARM_FORCE(chip6); \
652 I2C_CLIENT_MODULE_PARM_FORCE(chip7); \
653 I2C_CLIENT_MODULE_PARM_FORCE(chip8); \
654 static unsigned short *forces[] = { force, force_##chip1, \
655 force_##chip2, force_##chip3, \
656 force_##chip4, force_##chip5, \
657 force_##chip6, force_##chip7, \
658 force_##chip8, NULL }; \
659 I2C_CLIENT_INSMOD_COMMON
660 #endif /* __KERNEL__ */
661 #endif /* _LINUX_I2C_H */