i2c.h
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- /* ------------------------------------------------------------------------- */
- /* */
- /* i2c.h - definitions for the i2c-bus interface */
- /* */
- /* ------------------------------------------------------------------------- */
- /* Copyright (C) 1995-2000 Simon G. Vogl
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
- /* ------------------------------------------------------------------------- */
- /* With some changes from Ky鰏ti M鋖kki <kmalkki@cc.hut.fi> and
- Frodo Looijaard <frodol@dds.nl> */
- /* $Id: i2c.h,v 1.68 2003/01/21 08:08:16 kmalkki Exp $ */
- #ifndef _LINUX_I2C_H
- #define _LINUX_I2C_H
- #include <linux/module.h>
- #include <linux/types.h>
- #include <linux/i2c-id.h>
- #include <linux/device.h> /* for struct device */
- #include <asm/semaphore.h>
- /* --- For i2c-isa ---------------------------------------------------- */
- extern void i2c_adapter_dev_release(struct device *dev);
- extern struct device_driver i2c_adapter_driver;
- extern struct class i2c_adapter_class;
- extern struct bus_type i2c_bus_type;
- /* --- General options ------------------------------------------------ */
- struct i2c_msg;
- struct i2c_algorithm;
- struct i2c_adapter;
- struct i2c_client;
- struct i2c_driver;
- union i2c_smbus_data;
- /*
- * The master routines are the ones normally used to transmit data to devices
- * on a bus (or read from them). Apart from two basic transfer functions to
- * transmit one message at a time, a more complex version can be used to
- * transmit an arbitrary number of messages without interruption.
- */
- extern int i2c_master_send(struct i2c_client *,const char* ,int);
- extern int i2c_master_recv(struct i2c_client *,char* ,int);
- /* Transfer num messages.
- */
- extern int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num);
- /*
- * Some adapter types (i.e. PCF 8584 based ones) may support slave behaviuor.
- * This is not tested/implemented yet and will change in the future.
- */
- extern int i2c_slave_send(struct i2c_client *,char*,int);
- extern int i2c_slave_recv(struct i2c_client *,char*,int);
- /* This is the very generalized SMBus access routine. You probably do not
- want to use this, though; one of the functions below may be much easier,
- and probably just as fast.
- Note that we use i2c_adapter here, because you do not need a specific
- smbus adapter to call this function. */
- extern s32 i2c_smbus_xfer (struct i2c_adapter * adapter, u16 addr,
- unsigned short flags,
- char read_write, u8 command, int size,
- union i2c_smbus_data * data);
- /* Now follow the 'nice' access routines. These also document the calling
- conventions of smbus_access. */
- extern s32 i2c_smbus_write_quick(struct i2c_client * client, u8 value);
- extern s32 i2c_smbus_read_byte(struct i2c_client * client);
- extern s32 i2c_smbus_write_byte(struct i2c_client * client, u8 value);
- extern s32 i2c_smbus_read_byte_data(struct i2c_client * client, u8 command);
- extern s32 i2c_smbus_write_byte_data(struct i2c_client * client,
- u8 command, u8 value);
- extern s32 i2c_smbus_read_word_data(struct i2c_client * client, u8 command);
- extern s32 i2c_smbus_write_word_data(struct i2c_client * client,
- u8 command, u16 value);
- /* Returns the number of bytes transferred */
- extern s32 i2c_smbus_write_block_data(struct i2c_client * client,
- u8 command, u8 length,
- u8 *values);
- extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client * client,
- u8 command, u8 *values);
- /*
- * A driver is capable of handling one or more physical devices present on
- * I2C adapters. This information is used to inform the driver of adapter
- * events.
- */
- struct i2c_driver {
- struct module *owner;
- char name[32];
- int id;
- unsigned int class;
- unsigned int flags; /* div., see below */
- /* Notifies the driver that a new bus has appeared. This routine
- * can be used by the driver to test if the bus meets its conditions
- * & seek for the presence of the chip(s) it supports. If found, it
- * registers the client(s) that are on the bus to the i2c admin. via
- * i2c_attach_client.
- */
- int (*attach_adapter)(struct i2c_adapter *);
- int (*detach_adapter)(struct i2c_adapter *);
- /* tells the driver that a client is about to be deleted & gives it
- * the chance to remove its private data. Also, if the client struct
- * has been dynamically allocated by the driver in the function above,
- * it must be freed here.
- */
- int (*detach_client)(struct i2c_client *);
-
- /* a ioctl like command that can be used to perform specific functions
- * with the device.
- */
- int (*command)(struct i2c_client *client,unsigned int cmd, void *arg);
- struct device_driver driver;
- struct list_head list;
- };
- #define to_i2c_driver(d) container_of(d, struct i2c_driver, driver)
- #define I2C_NAME_SIZE 50
- /*
- * i2c_client identifies a single device (i.e. chip) that is connected to an
- * i2c bus. The behaviour is defined by the routines of the driver. This
- * function is mainly used for lookup & other admin. functions.
- */
- struct i2c_client {
- unsigned int flags; /* div., see below */
- unsigned short addr; /* chip address - NOTE: 7bit */
- /* addresses are stored in the */
- /* _LOWER_ 7 bits */
- struct i2c_adapter *adapter; /* the adapter we sit on */
- struct i2c_driver *driver; /* and our access routines */
- int usage_count; /* How many accesses currently */
- /* to the client */
- struct device dev; /* the device structure */
- struct list_head list;
- char name[I2C_NAME_SIZE];
- struct completion released;
- };
- #define to_i2c_client(d) container_of(d, struct i2c_client, dev)
- static inline struct i2c_client *kobj_to_i2c_client(struct kobject *kobj)
- {
- return to_i2c_client(container_of(kobj, struct device, kobj));
- }
- static inline void *i2c_get_clientdata (struct i2c_client *dev)
- {
- return dev_get_drvdata (&dev->dev);
- }
- static inline void i2c_set_clientdata (struct i2c_client *dev, void *data)
- {
- dev_set_drvdata (&dev->dev, data);
- }
- /*
- * The following structs are for those who like to implement new bus drivers:
- * i2c_algorithm is the interface to a class of hardware solutions which can
- * be addressed using the same bus algorithms - i.e. bit-banging or the PCF8584
- * to name two of the most common.
- */
- struct i2c_algorithm {
- /* If an adapter algorithm can't do I2C-level access, set master_xfer
- to NULL. If an adapter algorithm can do SMBus access, set
- smbus_xfer. If set to NULL, the SMBus protocol is simulated
- using common I2C messages */
- int (*master_xfer)(struct i2c_adapter *adap,struct i2c_msg *msgs,
- int num);
- int (*smbus_xfer) (struct i2c_adapter *adap, u16 addr,
- unsigned short flags, char read_write,
- u8 command, int size, union i2c_smbus_data * data);
- /* --- these optional/future use for some adapter types.*/
- int (*slave_send)(struct i2c_adapter *,char*,int);
- int (*slave_recv)(struct i2c_adapter *,char*,int);
- /* --- ioctl like call to set div. parameters. */
- int (*algo_control)(struct i2c_adapter *, unsigned int, unsigned long);
- /* To determine what the adapter supports */
- u32 (*functionality) (struct i2c_adapter *);
- };
- /*
- * i2c_adapter is the structure used to identify a physical i2c bus along
- * with the access algorithms necessary to access it.
- */
- struct i2c_adapter {
- struct module *owner;
- unsigned int id;
- unsigned int class;
- struct i2c_algorithm *algo;/* the algorithm to access the bus */
- void *algo_data;
- /* --- administration stuff. */
- int (*client_register)(struct i2c_client *);
- int (*client_unregister)(struct i2c_client *);
- /* data fields that are valid for all devices */
- struct semaphore bus_lock;
- struct semaphore clist_lock;
- int timeout;
- int retries;
- struct device dev; /* the adapter device */
- struct class_device class_dev; /* the class device */
- int nr;
- struct list_head clients;
- struct list_head list;
- char name[I2C_NAME_SIZE];
- struct completion dev_released;
- struct completion class_dev_released;
- };
- #define dev_to_i2c_adapter(d) container_of(d, struct i2c_adapter, dev)
- #define class_dev_to_i2c_adapter(d) container_of(d, struct i2c_adapter, class_dev)
- static inline void *i2c_get_adapdata (struct i2c_adapter *dev)
- {
- return dev_get_drvdata (&dev->dev);
- }
- static inline void i2c_set_adapdata (struct i2c_adapter *dev, void *data)
- {
- dev_set_drvdata (&dev->dev, data);
- }
- /*flags for the driver struct: */
- #define I2C_DF_NOTIFY 0x01 /* notify on bus (de/a)ttaches */
- #if 0
- /* this flag is gone -- there is a (optional) driver->detach_adapter
- * callback now which can be used instead */
- # define I2C_DF_DUMMY 0x02
- #endif
- /*flags for the client struct: */
- #define I2C_CLIENT_ALLOW_USE 0x01 /* Client allows access */
- #define I2C_CLIENT_ALLOW_MULTIPLE_USE 0x02 /* Allow multiple access-locks */
- /* on an i2c_client */
- #define I2C_CLIENT_PEC 0x04 /* Use Packet Error Checking */
- #define I2C_CLIENT_TEN 0x10 /* we have a ten bit chip address */
- /* Must equal I2C_M_TEN below */
- /* i2c adapter classes (bitmask) */
- #define I2C_CLASS_HWMON (1<<0) /* lm_sensors, ... */
- #define I2C_CLASS_TV_ANALOG (1<<1) /* bttv + friends */
- #define I2C_CLASS_TV_DIGITAL (1<<2) /* dvb cards */
- #define I2C_CLASS_DDC (1<<3) /* i2c-matroxfb ? */
- #define I2C_CLASS_CAM_ANALOG (1<<4) /* camera with analog CCD */
- #define I2C_CLASS_CAM_DIGITAL (1<<5) /* most webcams */
- #define I2C_CLASS_SOUND (1<<6) /* sound devices */
- #define I2C_CLASS_ALL (UINT_MAX) /* all of the above */
- /* i2c_client_address_data is the struct for holding default client
- * addresses for a driver and for the parameters supplied on the
- * command line
- */
- struct i2c_client_address_data {
- unsigned short *normal_i2c;
- unsigned short *probe;
- unsigned short *ignore;
- unsigned short **forces;
- };
- /* Internal numbers to terminate lists */
- #define I2C_CLIENT_END 0xfffeU
- /* The numbers to use to set I2C bus address */
- #define ANY_I2C_BUS 0xffff
- #define ANY_I2C_ISA_BUS 9191
- /* ----- functions exported by i2c.o */
- /* administration...
- */
- extern int i2c_add_adapter(struct i2c_adapter *);
- extern int i2c_del_adapter(struct i2c_adapter *);
- extern int i2c_add_driver(struct i2c_driver *);
- extern int i2c_del_driver(struct i2c_driver *);
- extern int i2c_attach_client(struct i2c_client *);
- extern int i2c_detach_client(struct i2c_client *);
- /* New function: This is to get an i2c_client-struct for controlling the
- client either by using i2c_control-function or having the
- client-module export functions that can be used with the i2c_client
- -struct. */
- extern struct i2c_client *i2c_get_client(int driver_id, int adapter_id,
- struct i2c_client *prev);
- /* Should be used with new function
- extern struct i2c_client *i2c_get_client(int,int,struct i2c_client *);
- to make sure that client-struct is valid and that it is okay to access
- the i2c-client.
- returns -EACCES if client doesn't allow use (default)
- returns -EBUSY if client doesn't allow multiple use (default) and
- usage_count >0 */
- extern int i2c_use_client(struct i2c_client *);
- extern int i2c_release_client(struct i2c_client *);
- /* call the i2c_client->command() of all attached clients with
- * the given arguments */
- extern void i2c_clients_command(struct i2c_adapter *adap,
- unsigned int cmd, void *arg);
- /* returns -EBUSY if address has been taken, 0 if not. Note that the only
- other place at which this is called is within i2c_attach_client; so
- you can cheat by simply not registering. Not recommended, of course! */
- extern int i2c_check_addr (struct i2c_adapter *adapter, int addr);
- /* Detect function. It iterates over all possible addresses itself.
- * It will only call found_proc if some client is connected at the
- * specific address (unless a 'force' matched);
- */
- extern int i2c_probe(struct i2c_adapter *adapter,
- struct i2c_client_address_data *address_data,
- int (*found_proc) (struct i2c_adapter *, int, int));
- /* An ioctl like call to set div. parameters of the adapter.
- */
- extern int i2c_control(struct i2c_client *,unsigned int, unsigned long);
- extern struct i2c_adapter* i2c_get_adapter(int id);
- extern void i2c_put_adapter(struct i2c_adapter *adap);
- /* Return the functionality mask */
- static inline u32 i2c_get_functionality(struct i2c_adapter *adap)
- {
- return adap->algo->functionality(adap);
- }
- /* Return 1 if adapter supports everything we need, 0 if not. */
- static inline int i2c_check_functionality(struct i2c_adapter *adap, u32 func)
- {
- return (func & i2c_get_functionality(adap)) == func;
- }
- /* Return id number for a specific adapter */
- static inline int i2c_adapter_id(struct i2c_adapter *adap)
- {
- return adap->nr;
- }
- /*
- * I2C Message - used for pure i2c transaction, also from /dev interface
- */
- struct i2c_msg {
- __u16 addr; /* slave address */
- __u16 flags;
- #define I2C_M_TEN 0x10 /* we have a ten bit chip address */
- #define I2C_M_RD 0x01
- #define I2C_M_NOSTART 0x4000
- #define I2C_M_REV_DIR_ADDR 0x2000
- #define I2C_M_IGNORE_NAK 0x1000
- #define I2C_M_NO_RD_ACK 0x0800
- __u16 len; /* msg length */
- __u8 *buf; /* pointer to msg data */
- };
- /* To determine what functionality is present */
- #define I2C_FUNC_I2C 0x00000001
- #define I2C_FUNC_10BIT_ADDR 0x00000002
- #define I2C_FUNC_PROTOCOL_MANGLING 0x00000004 /* I2C_M_{REV_DIR_ADDR,NOSTART,..} */
- #define I2C_FUNC_SMBUS_HWPEC_CALC 0x00000008 /* SMBus 2.0 */
- #define I2C_FUNC_SMBUS_READ_WORD_DATA_PEC 0x00000800 /* SMBus 2.0 */
- #define I2C_FUNC_SMBUS_WRITE_WORD_DATA_PEC 0x00001000 /* SMBus 2.0 */
- #define I2C_FUNC_SMBUS_PROC_CALL_PEC 0x00002000 /* SMBus 2.0 */
- #define I2C_FUNC_SMBUS_BLOCK_PROC_CALL_PEC 0x00004000 /* SMBus 2.0 */
- #define I2C_FUNC_SMBUS_BLOCK_PROC_CALL 0x00008000 /* SMBus 2.0 */
- #define I2C_FUNC_SMBUS_QUICK 0x00010000
- #define I2C_FUNC_SMBUS_READ_BYTE 0x00020000
- #define I2C_FUNC_SMBUS_WRITE_BYTE 0x00040000
- #define I2C_FUNC_SMBUS_READ_BYTE_DATA 0x00080000
- #define I2C_FUNC_SMBUS_WRITE_BYTE_DATA 0x00100000
- #define I2C_FUNC_SMBUS_READ_WORD_DATA 0x00200000
- #define I2C_FUNC_SMBUS_WRITE_WORD_DATA 0x00400000
- #define I2C_FUNC_SMBUS_PROC_CALL 0x00800000
- #define I2C_FUNC_SMBUS_READ_BLOCK_DATA 0x01000000
- #define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA 0x02000000
- #define I2C_FUNC_SMBUS_READ_I2C_BLOCK 0x04000000 /* I2C-like block xfer */
- #define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK 0x08000000 /* w/ 1-byte reg. addr. */
- #define I2C_FUNC_SMBUS_READ_I2C_BLOCK_2 0x10000000 /* I2C-like block xfer */
- #define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK_2 0x20000000 /* w/ 2-byte reg. addr. */
- #define I2C_FUNC_SMBUS_READ_BLOCK_DATA_PEC 0x40000000 /* SMBus 2.0 */
- #define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA_PEC 0x80000000 /* SMBus 2.0 */
- #define I2C_FUNC_SMBUS_BYTE (I2C_FUNC_SMBUS_READ_BYTE |
- I2C_FUNC_SMBUS_WRITE_BYTE)
- #define I2C_FUNC_SMBUS_BYTE_DATA (I2C_FUNC_SMBUS_READ_BYTE_DATA |
- I2C_FUNC_SMBUS_WRITE_BYTE_DATA)
- #define I2C_FUNC_SMBUS_WORD_DATA (I2C_FUNC_SMBUS_READ_WORD_DATA |
- I2C_FUNC_SMBUS_WRITE_WORD_DATA)
- #define I2C_FUNC_SMBUS_BLOCK_DATA (I2C_FUNC_SMBUS_READ_BLOCK_DATA |
- I2C_FUNC_SMBUS_WRITE_BLOCK_DATA)
- #define I2C_FUNC_SMBUS_I2C_BLOCK (I2C_FUNC_SMBUS_READ_I2C_BLOCK |
- I2C_FUNC_SMBUS_WRITE_I2C_BLOCK)
- #define I2C_FUNC_SMBUS_I2C_BLOCK_2 (I2C_FUNC_SMBUS_READ_I2C_BLOCK_2 |
- I2C_FUNC_SMBUS_WRITE_I2C_BLOCK_2)
- #define I2C_FUNC_SMBUS_BLOCK_DATA_PEC (I2C_FUNC_SMBUS_READ_BLOCK_DATA_PEC |
- I2C_FUNC_SMBUS_WRITE_BLOCK_DATA_PEC)
- #define I2C_FUNC_SMBUS_WORD_DATA_PEC (I2C_FUNC_SMBUS_READ_WORD_DATA_PEC |
- I2C_FUNC_SMBUS_WRITE_WORD_DATA_PEC)
- #define I2C_FUNC_SMBUS_READ_BYTE_PEC I2C_FUNC_SMBUS_READ_BYTE_DATA
- #define I2C_FUNC_SMBUS_WRITE_BYTE_PEC I2C_FUNC_SMBUS_WRITE_BYTE_DATA
- #define I2C_FUNC_SMBUS_READ_BYTE_DATA_PEC I2C_FUNC_SMBUS_READ_WORD_DATA
- #define I2C_FUNC_SMBUS_WRITE_BYTE_DATA_PEC I2C_FUNC_SMBUS_WRITE_WORD_DATA
- #define I2C_FUNC_SMBUS_BYTE_PEC I2C_FUNC_SMBUS_BYTE_DATA
- #define I2C_FUNC_SMBUS_BYTE_DATA_PEC I2C_FUNC_SMBUS_WORD_DATA
- #define I2C_FUNC_SMBUS_EMUL (I2C_FUNC_SMBUS_QUICK |
- I2C_FUNC_SMBUS_BYTE |
- I2C_FUNC_SMBUS_BYTE_DATA |
- I2C_FUNC_SMBUS_WORD_DATA |
- I2C_FUNC_SMBUS_PROC_CALL |
- I2C_FUNC_SMBUS_WRITE_BLOCK_DATA |
- I2C_FUNC_SMBUS_WRITE_BLOCK_DATA_PEC |
- I2C_FUNC_SMBUS_I2C_BLOCK)
- /*
- * Data for SMBus Messages
- */
- #define I2C_SMBUS_BLOCK_MAX 32 /* As specified in SMBus standard */
- #define I2C_SMBUS_I2C_BLOCK_MAX 32 /* Not specified but we use same structure */
- union i2c_smbus_data {
- __u8 byte;
- __u16 word;
- __u8 block[I2C_SMBUS_BLOCK_MAX + 3]; /* block[0] is used for length */
- /* one more for read length in block process call */
- /* and one more for PEC */
- };
- /* smbus_access read or write markers */
- #define I2C_SMBUS_READ 1
- #define I2C_SMBUS_WRITE 0
- /* SMBus transaction types (size parameter in the above functions)
- Note: these no longer correspond to the (arbitrary) PIIX4 internal codes! */
- #define I2C_SMBUS_QUICK 0
- #define I2C_SMBUS_BYTE 1
- #define I2C_SMBUS_BYTE_DATA 2
- #define I2C_SMBUS_WORD_DATA 3
- #define I2C_SMBUS_PROC_CALL 4
- #define I2C_SMBUS_BLOCK_DATA 5
- #define I2C_SMBUS_I2C_BLOCK_DATA 6
- #define I2C_SMBUS_BLOCK_PROC_CALL 7 /* SMBus 2.0 */
- #define I2C_SMBUS_BLOCK_DATA_PEC 8 /* SMBus 2.0 */
- #define I2C_SMBUS_PROC_CALL_PEC 9 /* SMBus 2.0 */
- #define I2C_SMBUS_BLOCK_PROC_CALL_PEC 10 /* SMBus 2.0 */
- #define I2C_SMBUS_WORD_DATA_PEC 11 /* SMBus 2.0 */
- /* ----- commands for the ioctl like i2c_command call:
- * note that additional calls are defined in the algorithm and hw
- * dependent layers - these can be listed here, or see the
- * corresponding header files.
- */
- /* -> bit-adapter specific ioctls */
- #define I2C_RETRIES 0x0701 /* number of times a device address */
- /* should be polled when not */
- /* acknowledging */
- #define I2C_TIMEOUT 0x0702 /* set timeout - call with int */
- /* this is for i2c-dev.c */
- #define I2C_SLAVE 0x0703 /* Change slave address */
- /* Attn.: Slave address is 7 or 10 bits */
- #define I2C_SLAVE_FORCE 0x0706 /* Change slave address */
- /* Attn.: Slave address is 7 or 10 bits */
- /* This changes the address, even if it */
- /* is already taken! */
- #define I2C_TENBIT 0x0704 /* 0 for 7 bit addrs, != 0 for 10 bit */
- #define I2C_FUNCS 0x0705 /* Get the adapter functionality */
- #define I2C_RDWR 0x0707 /* Combined R/W transfer (one stop only)*/
- #define I2C_PEC 0x0708 /* != 0 for SMBus PEC */
- #define I2C_SMBUS 0x0720 /* SMBus-level access */
- /* ... algo-bit.c recognizes */
- #define I2C_UDELAY 0x0705 /* set delay in microsecs between each */
- /* written byte (except address) */
- #define I2C_MDELAY 0x0706 /* millisec delay between written bytes */
- /* ----- I2C-DEV: char device interface stuff ------------------------- */
- #define I2C_MAJOR 89 /* Device major number */
- /* These defines are used for probing i2c client addresses */
- /* The length of the option lists */
- #define I2C_CLIENT_MAX_OPTS 48
- /* Default fill of many variables */
- #define I2C_CLIENT_DEFAULTS {I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END,
- I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END,
- I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END,
- I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END,
- I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END,
- I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END,
- I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END,
- I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END,
- I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END,
- I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END,
- I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END,
- I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END,
- I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END,
- I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END,
- I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END,
- I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END}
- /* I2C_CLIENT_MODULE_PARM creates a module parameter, and puts it in the
- module header */
- #define I2C_CLIENT_MODULE_PARM(var,desc)
- static unsigned short var[I2C_CLIENT_MAX_OPTS] = I2C_CLIENT_DEFAULTS;
- static unsigned int var##_num;
- module_param_array(var, short, &var##_num, 0);
- MODULE_PARM_DESC(var,desc)
- #define I2C_CLIENT_MODULE_PARM_FORCE(name)
- I2C_CLIENT_MODULE_PARM(force_##name,
- "List of adapter,address pairs which are "
- "unquestionably assumed to contain a `"
- # name "' chip")
- #define I2C_CLIENT_INSMOD_COMMON
- I2C_CLIENT_MODULE_PARM(probe, "List of adapter,address pairs to scan "
- "additionally");
- I2C_CLIENT_MODULE_PARM(ignore, "List of adapter,address pairs not to "
- "scan");
- static struct i2c_client_address_data addr_data = {
- .normal_i2c = normal_i2c,
- .probe = probe,
- .ignore = ignore,
- .forces = forces,
- }
- /* These are the ones you want to use in your own drivers. Pick the one
- which matches the number of devices the driver differenciates between. */
- #define I2C_CLIENT_INSMOD
- I2C_CLIENT_MODULE_PARM(force,
- "List of adapter,address pairs to boldly assume "
- "to be present");
- static unsigned short *forces[] = {
- force,
- NULL
- };
- I2C_CLIENT_INSMOD_COMMON
- #define I2C_CLIENT_INSMOD_1(chip1)
- enum chips { any_chip, chip1 };
- I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "
- "boldly assume to be present");
- I2C_CLIENT_MODULE_PARM_FORCE(chip1);
- static unsigned short *forces[] = { force, force_##chip1, NULL };
- I2C_CLIENT_INSMOD_COMMON
- #define I2C_CLIENT_INSMOD_2(chip1, chip2)
- enum chips { any_chip, chip1, chip2 };
- I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "
- "boldly assume to be present");
- I2C_CLIENT_MODULE_PARM_FORCE(chip1);
- I2C_CLIENT_MODULE_PARM_FORCE(chip2);
- static unsigned short *forces[] = { force, force_##chip1,
- force_##chip2, NULL };
- I2C_CLIENT_INSMOD_COMMON
- #define I2C_CLIENT_INSMOD_3(chip1, chip2, chip3)
- enum chips { any_chip, chip1, chip2, chip3 };
- I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "
- "boldly assume to be present");
- I2C_CLIENT_MODULE_PARM_FORCE(chip1);
- I2C_CLIENT_MODULE_PARM_FORCE(chip2);
- I2C_CLIENT_MODULE_PARM_FORCE(chip3);
- static unsigned short *forces[] = { force, force_##chip1,
- force_##chip2, force_##chip3,
- NULL };
- I2C_CLIENT_INSMOD_COMMON
- #define I2C_CLIENT_INSMOD_4(chip1, chip2, chip3, chip4)
- enum chips { any_chip, chip1, chip2, chip3, chip4 };
- I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "
- "boldly assume to be present");
- I2C_CLIENT_MODULE_PARM_FORCE(chip1);
- I2C_CLIENT_MODULE_PARM_FORCE(chip2);
- I2C_CLIENT_MODULE_PARM_FORCE(chip3);
- I2C_CLIENT_MODULE_PARM_FORCE(chip4);
- static unsigned short *forces[] = { force, force_##chip1,
- force_##chip2, force_##chip3,
- force_##chip4, NULL};
- I2C_CLIENT_INSMOD_COMMON
- #define I2C_CLIENT_INSMOD_5(chip1, chip2, chip3, chip4, chip5)
- enum chips { any_chip, chip1, chip2, chip3, chip4, chip5 };
- I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "
- "boldly assume to be present");
- I2C_CLIENT_MODULE_PARM_FORCE(chip1);
- I2C_CLIENT_MODULE_PARM_FORCE(chip2);
- I2C_CLIENT_MODULE_PARM_FORCE(chip3);
- I2C_CLIENT_MODULE_PARM_FORCE(chip4);
- I2C_CLIENT_MODULE_PARM_FORCE(chip5);
- static unsigned short *forces[] = { force, force_##chip1,
- force_##chip2, force_##chip3,
- force_##chip4, force_##chip5,
- NULL };
- I2C_CLIENT_INSMOD_COMMON
- #define I2C_CLIENT_INSMOD_6(chip1, chip2, chip3, chip4, chip5, chip6)
- enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6 };
- I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "
- "boldly assume to be present");
- I2C_CLIENT_MODULE_PARM_FORCE(chip1);
- I2C_CLIENT_MODULE_PARM_FORCE(chip2);
- I2C_CLIENT_MODULE_PARM_FORCE(chip3);
- I2C_CLIENT_MODULE_PARM_FORCE(chip4);
- I2C_CLIENT_MODULE_PARM_FORCE(chip5);
- I2C_CLIENT_MODULE_PARM_FORCE(chip6);
- static unsigned short *forces[] = { force, force_##chip1,
- force_##chip2, force_##chip3,
- force_##chip4, force_##chip5,
- force_##chip6, NULL };
- I2C_CLIENT_INSMOD_COMMON
- #define I2C_CLIENT_INSMOD_7(chip1, chip2, chip3, chip4, chip5, chip6, chip7)
- enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6,
- chip7 };
- I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "
- "boldly assume to be present");
- I2C_CLIENT_MODULE_PARM_FORCE(chip1);
- I2C_CLIENT_MODULE_PARM_FORCE(chip2);
- I2C_CLIENT_MODULE_PARM_FORCE(chip3);
- I2C_CLIENT_MODULE_PARM_FORCE(chip4);
- I2C_CLIENT_MODULE_PARM_FORCE(chip5);
- I2C_CLIENT_MODULE_PARM_FORCE(chip6);
- I2C_CLIENT_MODULE_PARM_FORCE(chip7);
- static unsigned short *forces[] = { force, force_##chip1,
- force_##chip2, force_##chip3,
- force_##chip4, force_##chip5,
- force_##chip6, force_##chip7,
- NULL };
- I2C_CLIENT_INSMOD_COMMON
- #define I2C_CLIENT_INSMOD_8(chip1, chip2, chip3, chip4, chip5, chip6, chip7, chip8)
- enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6,
- chip7, chip8 };
- I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "
- "boldly assume to be present");
- I2C_CLIENT_MODULE_PARM_FORCE(chip1);
- I2C_CLIENT_MODULE_PARM_FORCE(chip2);
- I2C_CLIENT_MODULE_PARM_FORCE(chip3);
- I2C_CLIENT_MODULE_PARM_FORCE(chip4);
- I2C_CLIENT_MODULE_PARM_FORCE(chip5);
- I2C_CLIENT_MODULE_PARM_FORCE(chip6);
- I2C_CLIENT_MODULE_PARM_FORCE(chip7);
- I2C_CLIENT_MODULE_PARM_FORCE(chip8);
- static unsigned short *forces[] = { force, force_##chip1,
- force_##chip2, force_##chip3,
- force_##chip4, force_##chip5,
- force_##chip6, force_##chip7,
- force_##chip8, NULL };
- I2C_CLIENT_INSMOD_COMMON
- #endif /* _LINUX_I2C_H */