diff options
| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-07-27 22:07:53 +0000 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-07-27 22:07:53 +0000 |
| commit | 4fbe7358c7747a9165f776eb19addbb9baf7def2 (patch) | |
| tree | bc7076b4f6d10c2cc2942539bb666e50f0b66954 /libdde_linux26/contrib/include/linux/i2c.h | |
| parent | 21adb5284111190057db245cfc2b54091920c373 (diff) | |
rename libdde_linux26 into libdde-linux26 to make dpkg-source happy
Diffstat (limited to 'libdde_linux26/contrib/include/linux/i2c.h')
| -rw-r--r-- | libdde_linux26/contrib/include/linux/i2c.h | 757 |
1 files changed, 0 insertions, 757 deletions
diff --git a/libdde_linux26/contrib/include/linux/i2c.h b/libdde_linux26/contrib/include/linux/i2c.h deleted file mode 100644 index c86c3b07..00000000 --- a/libdde_linux26/contrib/include/linux/i2c.h +++ /dev/null @@ -1,757 +0,0 @@ -/* ------------------------------------------------------------------------- */ -/* */ -/* 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 Kyösti Mälkki <kmalkki@cc.hut.fi> and - Frodo Looijaard <frodol@dds.nl> */ - -#ifndef _LINUX_I2C_H -#define _LINUX_I2C_H - -#include <linux/types.h> -#ifdef __KERNEL__ -#include <linux/module.h> -#include <linux/i2c-id.h> -#include <linux/mod_devicetable.h> -#include <linux/device.h> /* for struct device */ -#include <linux/sched.h> /* for completion */ -#include <linux/mutex.h> - -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; -struct i2c_board_info; - -/* - * 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 *client, const char *buf, - int count); -extern int i2c_master_recv(struct i2c_client *client, char *buf, int count); - -/* Transfer num messages. - */ -extern int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, - int num); - -/* 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 i2c_smbus_xfer. */ - -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 read bytes */ -extern s32 i2c_smbus_read_block_data(struct i2c_client *client, - u8 command, u8 *values); -extern s32 i2c_smbus_write_block_data(struct i2c_client *client, - u8 command, u8 length, const u8 *values); -/* Returns the number of read bytes */ -extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client *client, - u8 command, u8 length, u8 *values); -extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client *client, - u8 command, u8 length, - const u8 *values); - -/** - * struct i2c_driver - represent an I2C device driver - * @id: Unique driver ID (optional) - * @class: What kind of i2c device we instantiate (for detect) - * @attach_adapter: Callback for bus addition (for legacy drivers) - * @detach_adapter: Callback for bus removal (for legacy drivers) - * @detach_client: Callback for device removal (for legacy drivers) - * @probe: Callback for device binding (new-style drivers) - * @remove: Callback for device unbinding (new-style drivers) - * @shutdown: Callback for device shutdown - * @suspend: Callback for device suspend - * @resume: Callback for device resume - * @command: Callback for bus-wide signaling (optional) - * @driver: Device driver model driver - * @id_table: List of I2C devices supported by this driver - * @detect: Callback for device detection - * @address_data: The I2C addresses to probe, ignore or force (for detect) - * @clients: List of detected clients we created (for i2c-core use only) - * - * The driver.owner field should be set to the module owner of this driver. - * The driver.name field should be set to the name of this driver. - * - * For automatic device detection, both @detect and @address_data must - * be defined. @class should also be set, otherwise only devices forced - * with module parameters will be created. The detect function must - * fill at least the name field of the i2c_board_info structure it is - * handed upon successful detection, and possibly also the flags field. - * - * If @detect is missing, the driver will still work fine for enumerated - * devices. Detected devices simply won't be supported. This is expected - * for the many I2C/SMBus devices which can't be detected reliably, and - * the ones which can always be enumerated in practice. - * - * The i2c_client structure which is handed to the @detect callback is - * not a real i2c_client. It is initialized just enough so that you can - * call i2c_smbus_read_byte_data and friends on it. Don't do anything - * else with it. In particular, calling dev_dbg and friends on it is - * not allowed. - */ -struct i2c_driver { - int id; - unsigned int class; - - /* 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. (LEGACY I2C DRIVERS ONLY) - */ - 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. (LEGACY I2C DRIVERS ONLY) - */ - int (*detach_client)(struct i2c_client *) __deprecated; - - /* Standard driver model interfaces, for "new style" i2c drivers. - * With the driver model, device enumeration is NEVER done by drivers; - * it's done by infrastructure. (NEW STYLE DRIVERS ONLY) - */ - int (*probe)(struct i2c_client *, const struct i2c_device_id *); - int (*remove)(struct i2c_client *); - - /* driver model interfaces that don't relate to enumeration */ - void (*shutdown)(struct i2c_client *); - int (*suspend)(struct i2c_client *, pm_message_t mesg); - int (*resume)(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; - const struct i2c_device_id *id_table; - - /* Device detection callback for automatic device creation */ - int (*detect)(struct i2c_client *, int kind, struct i2c_board_info *); - const struct i2c_client_address_data *address_data; - struct list_head clients; -}; -#define to_i2c_driver(d) container_of(d, struct i2c_driver, driver) - -/** - * struct i2c_client - represent an I2C slave device - * @flags: I2C_CLIENT_TEN indicates the device uses a ten bit chip address; - * I2C_CLIENT_PEC indicates it uses SMBus Packet Error Checking - * @addr: Address used on the I2C bus connected to the parent adapter. - * @name: Indicates the type of the device, usually a chip name that's - * generic enough to hide second-sourcing and compatible revisions. - * @adapter: manages the bus segment hosting this I2C device - * @driver: device's driver, hence pointer to access routines - * @dev: Driver model device node for the slave. - * @irq: indicates the IRQ generated by this device (if any) - * @list: list of active/busy clients (DEPRECATED) - * @detected: member of an i2c_driver.clients list - * @released: used to synchronize client releases & detaches and references - * - * An i2c_client identifies a single device (i.e. chip) connected to an - * i2c bus. The behaviour exposed to Linux is defined by the driver - * managing the device. - */ -struct i2c_client { - unsigned short flags; /* div., see below */ - unsigned short addr; /* chip address - NOTE: 7bit */ - /* addresses are stored in the */ - /* _LOWER_ 7 bits */ - char name[I2C_NAME_SIZE]; - struct i2c_adapter *adapter; /* the adapter we sit on */ - struct i2c_driver *driver; /* and our access routines */ - struct device dev; /* the device structure */ - int irq; /* irq issued by device */ - struct list_head list; /* DEPRECATED */ - struct list_head detected; - struct completion released; -}; -#define to_i2c_client(d) container_of(d, struct i2c_client, dev) - -extern struct i2c_client *i2c_verify_client(struct device *dev); - -static inline struct i2c_client *kobj_to_i2c_client(struct kobject *kobj) -{ - struct device * const dev = container_of(kobj, struct device, kobj); - return to_i2c_client(dev); -} - -static inline void *i2c_get_clientdata(const 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); -} - -/** - * struct i2c_board_info - template for device creation - * @type: chip type, to initialize i2c_client.name - * @flags: to initialize i2c_client.flags - * @addr: stored in i2c_client.addr - * @platform_data: stored in i2c_client.dev.platform_data - * @archdata: copied into i2c_client.dev.archdata - * @irq: stored in i2c_client.irq - * - * I2C doesn't actually support hardware probing, although controllers and - * devices may be able to use I2C_SMBUS_QUICK to tell whether or not there's - * a device at a given address. Drivers commonly need more information than - * that, such as chip type, configuration, associated IRQ, and so on. - * - * i2c_board_info is used to build tables of information listing I2C devices - * that are present. This information is used to grow the driver model tree - * for "new style" I2C drivers. For mainboards this is done statically using - * i2c_register_board_info(); bus numbers identify adapters that aren't - * yet available. For add-on boards, i2c_new_device() does this dynamically - * with the adapter already known. - */ -struct i2c_board_info { - char type[I2C_NAME_SIZE]; - unsigned short flags; - unsigned short addr; - void *platform_data; - struct dev_archdata *archdata; - int irq; -}; - -/** - * I2C_BOARD_INFO - macro used to list an i2c device and its address - * @dev_type: identifies the device type - * @dev_addr: the device's address on the bus. - * - * This macro initializes essential fields of a struct i2c_board_info, - * declaring what has been provided on a particular board. Optional - * fields (such as associated irq, or device-specific platform_data) - * are provided using conventional syntax. - */ -#define I2C_BOARD_INFO(dev_type, dev_addr) \ - .type = (dev_type), .addr = (dev_addr) - - -/* Add-on boards should register/unregister their devices; e.g. a board - * with integrated I2C, a config eeprom, sensors, and a codec that's - * used in conjunction with the primary hardware. - */ -extern struct i2c_client * -i2c_new_device(struct i2c_adapter *adap, struct i2c_board_info const *info); - -/* If you don't know the exact address of an I2C device, use this variant - * instead, which can probe for device presence in a list of possible - * addresses. - */ -extern struct i2c_client * -i2c_new_probed_device(struct i2c_adapter *adap, - struct i2c_board_info *info, - unsigned short const *addr_list); - -/* For devices that use several addresses, use i2c_new_dummy() to make - * client handles for the extra addresses. - */ -extern struct i2c_client * -i2c_new_dummy(struct i2c_adapter *adap, u16 address); - -extern void i2c_unregister_device(struct i2c_client *); - -/* Mainboard arch_initcall() code should register all its I2C devices. - * This is done at arch_initcall time, before declaring any i2c adapters. - * Modules for add-on boards must use other calls. - */ -#ifdef CONFIG_I2C_BOARDINFO -extern int -i2c_register_board_info(int busnum, struct i2c_board_info const *info, - unsigned n); -#else -static inline int -i2c_register_board_info(int busnum, struct i2c_board_info const *info, - unsigned n) -{ - return 0; -} -#endif - -/* - * 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 */ - /* master_xfer should return the number of messages successfully - processed, or a negative value on error */ - 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); - - /* 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; /* classes to allow probing for */ - const 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 */ - u8 level; /* nesting level for lockdep */ - struct mutex bus_lock; - struct mutex clist_lock; - - int timeout; /* in jiffies */ - int retries; - struct device dev; /* the adapter device */ - - int nr; - struct list_head clients; /* DEPRECATED */ - char name[48]; - struct completion dev_released; -}; -#define to_i2c_adapter(d) container_of(d, struct i2c_adapter, dev) - -static inline void *i2c_get_adapdata(const 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 client struct: */ -#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 */ -#define I2C_CLIENT_WAKE 0x80 /* for board_info; true iff can wake */ - -/* 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) /* DDC bus on graphics adapters */ -#define I2C_CLASS_SPD (1<<7) /* SPD EEPROMs and similar */ - -/* 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 { - const unsigned short *normal_i2c; - const unsigned short *probe; - const unsigned short *ignore; - const unsigned short * const *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 - - -/* ----- 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_numbered_adapter(struct i2c_adapter *); - -extern int i2c_register_driver(struct module *, struct i2c_driver *); -extern void i2c_del_driver(struct i2c_driver *); - -static inline int i2c_add_driver(struct i2c_driver *driver) -{ - return i2c_register_driver(THIS_MODULE, driver); -} - -/* These are deprecated, your driver should use the standard .probe() - * and .remove() methods instead. */ -extern int __deprecated i2c_attach_client(struct i2c_client *); -extern int __deprecated i2c_detach_client(struct i2c_client *); - -extern struct i2c_client *i2c_use_client(struct i2c_client *client); -extern void i2c_release_client(struct i2c_client *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); - -/* 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, - const struct i2c_client_address_data *address_data, - int (*found_proc) (struct i2c_adapter *, int, int)); - -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 the adapter number for a specific adapter */ -static inline int i2c_adapter_id(struct i2c_adapter *adap) -{ - return adap->nr; -} -#endif /* __KERNEL__ */ - -/** - * struct i2c_msg - an I2C transaction segment beginning with START - * @addr: Slave address, either seven or ten bits. When this is a ten - * bit address, I2C_M_TEN must be set in @flags and the adapter - * must support I2C_FUNC_10BIT_ADDR. - * @flags: I2C_M_RD is handled by all adapters. No other flags may be - * provided unless the adapter exported the relevant I2C_FUNC_* - * flags through i2c_check_functionality(). - * @len: Number of data bytes in @buf being read from or written to the - * I2C slave address. For read transactions where I2C_M_RECV_LEN - * is set, the caller guarantees that this buffer can hold up to - * 32 bytes in addition to the initial length byte sent by the - * slave (plus, if used, the SMBus PEC); and this value will be - * incremented by the number of block data bytes received. - * @buf: The buffer into which data is read, or from which it's written. - * - * An i2c_msg is the low level representation of one segment of an I2C - * transaction. It is visible to drivers in the @i2c_transfer() procedure, - * to userspace from i2c-dev, and to I2C adapter drivers through the - * @i2c_adapter.@master_xfer() method. - * - * Except when I2C "protocol mangling" is used, all I2C adapters implement - * the standard rules for I2C transactions. Each transaction begins with a - * START. That is followed by the slave address, and a bit encoding read - * versus write. Then follow all the data bytes, possibly including a byte - * with SMBus PEC. The transfer terminates with a NAK, or when all those - * bytes have been transferred and ACKed. If this is the last message in a - * group, it is followed by a STOP. Otherwise it is followed by the next - * @i2c_msg transaction segment, beginning with a (repeated) START. - * - * Alternatively, when the adapter supports I2C_FUNC_PROTOCOL_MANGLING then - * passing certain @flags may have changed those standard protocol behaviors. - * Those flags are only for use with broken/nonconforming slaves, and with - * adapters which are known to support the specific mangling options they - * need (one or more of IGNORE_NAK, NO_RD_ACK, NOSTART, and REV_DIR_ADDR). - */ -struct i2c_msg { - __u16 addr; /* slave address */ - __u16 flags; -#define I2C_M_TEN 0x0010 /* this is a ten bit chip address */ -#define I2C_M_RD 0x0001 /* read data, from slave to master */ -#define I2C_M_NOSTART 0x4000 /* if I2C_FUNC_PROTOCOL_MANGLING */ -#define I2C_M_REV_DIR_ADDR 0x2000 /* if I2C_FUNC_PROTOCOL_MANGLING */ -#define I2C_M_IGNORE_NAK 0x1000 /* if I2C_FUNC_PROTOCOL_MANGLING */ -#define I2C_M_NO_RD_ACK 0x0800 /* if I2C_FUNC_PROTOCOL_MANGLING */ -#define I2C_M_RECV_LEN 0x0400 /* length will be first received byte */ - __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_NOSTART etc. */ -#define I2C_FUNC_SMBUS_PEC 0x00000008 -#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_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_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_I2C_BLOCK | \ - I2C_FUNC_SMBUS_PEC) - -/* - * Data for SMBus Messages - */ -#define I2C_SMBUS_BLOCK_MAX 32 /* As specified in SMBus standard */ -union i2c_smbus_data { - __u8 byte; - __u16 word; - __u8 block[I2C_SMBUS_BLOCK_MAX + 2]; /* block[0] is used for length */ - /* and one more for user-space compatibility */ -}; - -/* i2c_smbus_xfer 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_BROKEN 6 -#define I2C_SMBUS_BLOCK_PROC_CALL 7 /* SMBus 2.0 */ -#define I2C_SMBUS_I2C_BLOCK_DATA 8 - - -#ifdef __KERNEL__ - -/* 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 const struct i2c_client_address_data addr_data = { \ - .normal_i2c = normal_i2c, \ - .probe = probe, \ - .ignore = ignore, \ - .forces = forces, \ -} - -#define I2C_CLIENT_FORCE_TEXT \ - "List of adapter,address pairs to boldly assume to be present" - -/* 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, I2C_CLIENT_FORCE_TEXT); \ -static const unsigned short * const forces[] = { force, NULL }; \ -I2C_CLIENT_INSMOD_COMMON - -#define I2C_CLIENT_INSMOD_1(chip1) \ -enum chips { any_chip, chip1 }; \ -I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT); \ -I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ -static const unsigned short * const 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, I2C_CLIENT_FORCE_TEXT); \ -I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ -I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ -static const unsigned short * const 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, I2C_CLIENT_FORCE_TEXT); \ -I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ -I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ -I2C_CLIENT_MODULE_PARM_FORCE(chip3); \ -static const unsigned short * const 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, I2C_CLIENT_FORCE_TEXT); \ -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 const unsigned short * const 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, I2C_CLIENT_FORCE_TEXT); \ -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 const unsigned short * const 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, I2C_CLIENT_FORCE_TEXT); \ -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 const unsigned short * const 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, I2C_CLIENT_FORCE_TEXT); \ -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 const unsigned short * const 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, I2C_CLIENT_FORCE_TEXT); \ -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 const unsigned short * const forces[] = { force, \ - force_##chip1, force_##chip2, force_##chip3, \ - force_##chip4, force_##chip5, force_##chip6, \ - force_##chip7, force_##chip8, NULL }; \ -I2C_CLIENT_INSMOD_COMMON -#endif /* __KERNEL__ */ -#endif /* _LINUX_I2C_H */ |
