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w1: Add subsystem kernel public interface

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Like other subsystems we should be able to define slave devices outside
of the w1 directory. To do this we move public facing interface
definitions to include/linux/w1.h and rename the internal definition
file to w1_internal.h.

As w1_family.h and w1_int.h contained almost entirely public
driver interface definitions we simply removed these files and
moved the remaining definitions into w1_internal.h.

With this we can now start to move slave devices out of w1/slaves and
into the subsystem based on the function they implement, again like
other drivers.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andrew F. Davis 2017-06-05 08:52:08 -05:00 committed by Greg Kroah-Hartman
parent acb7e8f744
commit de0d6dbdbd
36 changed files with 208 additions and 260 deletions
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1
MAINTAINERS
View File

@ -13790,6 +13790,7 @@ M: Evgeniy Polyakov <zbr@ioremap.net>
S: Maintained
F: Documentation/w1/
F: drivers/w1/
F: include/linux/w1.h
W83791D HARDWARE MONITORING DRIVER
M: Marc Hulsman <m.hulsman@tudelft.nl>

2
drivers/power/supply/ds2760_battery.c
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@ -28,7 +28,7 @@
#include <linux/platform_device.h>
#include <linux/power_supply.h>
#include "../../w1/w1.h"
#include <linux/w1.h>
#include "../../w1/slaves/w1_ds2760.h"
struct ds2760_device_info {

2
drivers/power/supply/ds2780_battery.c
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@ -21,7 +21,7 @@
#include <linux/power_supply.h>
#include <linux/idr.h>
#include "../../w1/w1.h"
#include <linux/w1.h>
#include "../../w1/slaves/w1_ds2780.h"
/* Current unit measurement in uA for a 1 milli-ohm sense resistor */

2
drivers/power/supply/ds2781_battery.c
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@ -19,7 +19,7 @@
#include <linux/power_supply.h>
#include <linux/idr.h>
#include "../../w1/w1.h"
#include <linux/w1.h>
#include "../../w1/slaves/w1_ds2781.h"
/* Current unit measurement in uA for a 1 milli-ohm sense resistor */

3
drivers/w1/masters/ds1wm.c
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@ -25,8 +25,7 @@
#include <asm/io.h>
#include "../w1.h"
#include "../w1_int.h"
#include <linux/w1.h>
#define DS1WM_CMD 0x00 /* R/W 4 bits command */

3
drivers/w1/masters/ds2482.c
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@ -20,8 +20,7 @@
#include <linux/delay.h>
#include <asm/delay.h>
#include "../w1.h"
#include "../w1_int.h"
#include <linux/w1.h>
/**
* Allow the active pullup to be disabled, default is enabled.

3
drivers/w1/masters/ds2490.c
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@ -25,8 +25,7 @@
#include <linux/usb.h>
#include <linux/slab.h>
#include "../w1_int.h"
#include "../w1.h"
#include <linux/w1.h>
/* USB Standard */
/* USB Control request vendor type */

3
drivers/w1/masters/matrox_w1.c
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@ -34,8 +34,7 @@
#include <linux/pci_ids.h>
#include <linux/pci.h>
#include "../w1.h"
#include "../w1_int.h"
#include <linux/w1.h>
/*
* Matrox G400 DDC registers.

3
drivers/w1/masters/mxc_w1.c
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@ -19,8 +19,7 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include "../w1.h"
#include "../w1_int.h"
#include <linux/w1.h>
/*
* MXC W1 Register offsets

3
drivers/w1/masters/omap_hdq.c
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@ -19,8 +19,7 @@
#include <linux/pm_runtime.h>
#include <linux/of.h>
#include "../w1.h"
#include "../w1_int.h"
#include <linux/w1.h>
#define MOD_NAME "OMAP_HDQ:"

3
drivers/w1/masters/w1-gpio.c
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@ -20,8 +20,7 @@
#include <linux/of.h>
#include <linux/delay.h>
#include "../w1.h"
#include "../w1_int.h"
#include <linux/w1.h>
static u8 w1_gpio_set_pullup(void *data, int delay)
{

6
drivers/w1/slaves/w1_bq27000.c
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@ -17,9 +17,9 @@
#include <linux/mutex.h>
#include <linux/power/bq27xxx_battery.h>
#include "../w1.h"
#include "../w1_int.h"
#include "../w1_family.h"
#include <linux/w1.h>
#define W1_FAMILY_BQ27000 0x01
#define HDQ_CMD_READ (0)
#define HDQ_CMD_WRITE (1<<7)

5
drivers/w1/slaves/w1_ds2405.c
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@ -24,8 +24,9 @@
#include <linux/string.h>
#include <linux/types.h>
#include "../w1.h"
#include "../w1_family.h"
#include <linux/w1.h>
#define W1_FAMILY_DS2405 0x05
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Maciej S. Szmigiero <mail@maciej.szmigiero.name>");

6
drivers/w1/slaves/w1_ds2406.c
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@ -17,9 +17,9 @@
#include <linux/slab.h>
#include <linux/crc16.h>
#include "../w1.h"
#include "../w1_int.h"
#include "../w1_family.h"
#include <linux/w1.h>
#define W1_FAMILY_DS2406 0x12
#define W1_F12_FUNC_READ_STATUS 0xAA
#define W1_F12_FUNC_WRITE_STATUS 0x55

6
drivers/w1/slaves/w1_ds2408.c
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@ -15,9 +15,9 @@
#include <linux/delay.h>
#include <linux/slab.h>
#include "../w1.h"
#include "../w1_int.h"
#include "../w1_family.h"
#include <linux/w1.h>
#define W1_FAMILY_DS2408 0x29
#define W1_F29_RETRIES 3

6
drivers/w1/slaves/w1_ds2413.c
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@ -16,9 +16,9 @@
#include <linux/delay.h>
#include <linux/slab.h>
#include "../w1.h"
#include "../w1_int.h"
#include "../w1_family.h"
#include <linux/w1.h>
#define W1_FAMILY_DS2413 0x3A
#define W1_F3A_RETRIES 3
#define W1_F3A_FUNC_PIO_ACCESS_READ 0xF5

6
drivers/w1/slaves/w1_ds2423.c
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@ -30,9 +30,9 @@
#include <linux/delay.h>
#include <linux/crc16.h>
#include "../w1.h"
#include "../w1_int.h"
#include "../w1_family.h"
#include <linux/w1.h>
#define W1_COUNTER_DS2423 0x1D
#define CRC16_VALID 0xb001
#define CRC16_INIT 0

6
drivers/w1/slaves/w1_ds2431.c
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@ -16,9 +16,9 @@
#include <linux/types.h>
#include <linux/delay.h>
#include "../w1.h"
#include "../w1_int.h"
#include "../w1_family.h"
#include <linux/w1.h>
#define W1_EEPROM_DS2431 0x2D
#define W1_F2D_EEPROM_SIZE 128
#define W1_F2D_PAGE_COUNT 4

6
drivers/w1/slaves/w1_ds2433.c
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@ -22,9 +22,9 @@
#endif
#include "../w1.h"
#include "../w1_int.h"
#include "../w1_family.h"
#include <linux/w1.h>
#define W1_EEPROM_DS2433 0x23
#define W1_EEPROM_SIZE 512
#define W1_PAGE_COUNT 16

5
drivers/w1/slaves/w1_ds2438.c
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@ -13,8 +13,9 @@
#include <linux/types.h>
#include <linux/delay.h>
#include "../w1.h"
#include "../w1_family.h"
#include <linux/w1.h>
#define W1_FAMILY_DS2438 0x26
#define W1_DS2438_RETRIES 3

7
drivers/w1/slaves/w1_ds2760.c
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@ -18,11 +18,12 @@
#include <linux/idr.h>
#include <linux/gfp.h>
#include "../w1.h"
#include "../w1_int.h"
#include "../w1_family.h"
#include <linux/w1.h>
#include "w1_ds2760.h"
#define W1_FAMILY_DS2760 0x30
static int w1_ds2760_io(struct device *dev, char *buf, int addr, size_t count,
int io)
{

7
drivers/w1/slaves/w1_ds2780.c
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@ -21,11 +21,12 @@
#include <linux/mutex.h>
#include <linux/idr.h>
#include "../w1.h"
#include "../w1_int.h"
#include "../w1_family.h"
#include <linux/w1.h>
#include "w1_ds2780.h"
#define W1_FAMILY_DS2780 0x32
static int w1_ds2780_do_io(struct device *dev, char *buf, int addr,
size_t count, int io)
{

7
drivers/w1/slaves/w1_ds2781.c
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@ -18,11 +18,12 @@
#include <linux/platform_device.h>
#include <linux/mutex.h>
#include "../w1.h"
#include "../w1_int.h"
#include "../w1_family.h"
#include <linux/w1.h>
#include "w1_ds2781.h"
#define W1_FAMILY_DS2781 0x3D
static int w1_ds2781_do_io(struct device *dev, char *buf, int addr,
size_t count, int io)
{

6
drivers/w1/slaves/w1_ds28e04.c
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@ -20,9 +20,9 @@
#define CRC16_INIT 0
#define CRC16_VALID 0xb001
#include "../w1.h"
#include "../w1_int.h"
#include "../w1_family.h"
#include <linux/w1.h>
#define W1_FAMILY_DS28E04 0x1C
/* Allow the strong pullup to be disabled, but default to enabled.
* If it was disabled a parasite powered device might not get the required

7
drivers/w1/slaves/w1_smem.c
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@ -27,9 +27,10 @@
#include <linux/device.h>
#include <linux/types.h>
#include "../w1.h"
#include "../w1_int.h"
#include "../w1_family.h"
#include <linux/w1.h>
#define W1_FAMILY_SMEM_01 0x01
#define W1_FAMILY_SMEM_81 0x81
static struct w1_family w1_smem_family_01 = {
.fid = W1_FAMILY_SMEM_01,

10
drivers/w1/slaves/w1_therm.c
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@ -30,9 +30,13 @@
#include <linux/slab.h>
#include <linux/delay.h>
#include "../w1.h"
#include "../w1_int.h"
#include "../w1_family.h"
#include <linux/w1.h>
#define W1_THERM_DS18S20 0x10
#define W1_THERM_DS1822 0x22
#define W1_THERM_DS18B20 0x28
#define W1_THERM_DS1825 0x3B
#define W1_THERM_DS28EA00 0x42
/* Allow the strong pullup to be disabled, but default to enabled.
* If it was disabled a parasite powered device might not get the require

6
drivers/w1/w1.c
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@ -28,11 +28,11 @@
#include <linux/atomic.h>
#include "w1.h"
#include "w1_int.h"
#include "w1_family.h"
#include "w1_internal.h"
#include "w1_netlink.h"
#define W1_FAMILY_DEFAULT 0
static int w1_timeout = 10;
module_param_named(timeout, w1_timeout, int, 0);
MODULE_PARM_DESC(timeout, "time in seconds between automatic slave searches");

3
drivers/w1/w1_family.c
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@ -18,8 +18,7 @@
#include <linux/delay.h>
#include <linux/export.h>
#include "w1_family.h"
#include "w1.h"
#include "w1_internal.h"
DEFINE_SPINLOCK(w1_flock);
static LIST_HEAD(w1_families);

98
drivers/w1/w1_family.h
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@ -1,98 +0,0 @@
/*
* Copyright (c) 2004 Evgeniy Polyakov <zbr@ioremap.net>
*
* 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.
*/
#ifndef __W1_FAMILY_H
#define __W1_FAMILY_H
#include <linux/types.h>
#include <linux/device.h>
#include <linux/atomic.h>
#define W1_FAMILY_DEFAULT 0
#define W1_FAMILY_BQ27000 0x01
#define W1_FAMILY_SMEM_01 0x01
#define W1_FAMILY_SMEM_81 0x81
#define W1_FAMILY_DS2405 0x05
#define W1_THERM_DS18S20 0x10
#define W1_FAMILY_DS28E04 0x1C
#define W1_COUNTER_DS2423 0x1D
#define W1_THERM_DS1822 0x22
#define W1_EEPROM_DS2433 0x23
#define W1_FAMILY_DS2438 0x26
#define W1_THERM_DS18B20 0x28
#define W1_FAMILY_DS2408 0x29
#define W1_EEPROM_DS2431 0x2D
#define W1_FAMILY_DS2760 0x30
#define W1_FAMILY_DS2780 0x32
#define W1_FAMILY_DS2413 0x3A
#define W1_FAMILY_DS2406 0x12
#define W1_THERM_DS1825 0x3B
#define W1_FAMILY_DS2781 0x3D
#define W1_THERM_DS28EA00 0x42
#define MAXNAMELEN 32
struct w1_slave;
/**
* struct w1_family_ops - operations for a family type
* @add_slave: add_slave
* @remove_slave: remove_slave
* @groups: sysfs group
*/
struct w1_family_ops
{
int (* add_slave)(struct w1_slave *);
void (* remove_slave)(struct w1_slave *);
const struct attribute_group **groups;
};
/**
* struct w1_family - reference counted family structure.
* @family_entry: family linked list
* @fid: 8 bit family identifier
* @fops: operations for this family
* @refcnt: reference counter
*/
struct w1_family
{
struct list_head family_entry;
u8 fid;
struct w1_family_ops *fops;
atomic_t refcnt;
};
extern spinlock_t w1_flock;
void w1_family_put(struct w1_family *);
void __w1_family_get(struct w1_family *);
struct w1_family * w1_family_registered(u8);
void w1_unregister_family(struct w1_family *);
int w1_register_family(struct w1_family *);
/**
* module_w1_driver() - Helper macro for registering a 1-Wire families
* @__w1_family: w1_family struct
*
* Helper macro for 1-Wire families which do not do anything special in module
* init/exit. This eliminates a lot of boilerplate. Each module may only
* use this macro once, and calling it replaces module_init() and module_exit()
*/
#define module_w1_family(__w1_family) \
module_driver(__w1_family, w1_register_family, \
w1_unregister_family)
#endif /* __W1_FAMILY_H */

3
drivers/w1/w1_int.c
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@ -21,9 +21,8 @@
#include <linux/export.h>
#include <linux/moduleparam.h>
#include "w1.h"
#include "w1_internal.h"
#include "w1_netlink.h"
#include "w1_int.h"
static int w1_search_count = -1; /* Default is continual scan */
module_param_named(search_count, w1_search_count, int, 0);

27
drivers/w1/w1_int.h
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@ -1,27 +0,0 @@
/*
* Copyright (c) 2004 Evgeniy Polyakov <zbr@ioremap.net>
*
* 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.
*/
#ifndef __W1_INT_H
#define __W1_INT_H
#include <linux/kernel.h>
#include <linux/device.h>
#include "w1.h"
int w1_add_master_device(struct w1_bus_master *);
void w1_remove_master_device(struct w1_bus_master *);
void __w1_remove_master_device(struct w1_master *);
#endif /* __W1_INT_H */

87
drivers/w1/w1_internal.h Normal file
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@ -0,0 +1,87 @@
/*
* Copyright (c) 2004 Evgeniy Polyakov <zbr@ioremap.net>
*
* 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.
*/
#ifndef __W1_H
#define __W1_H
#include <linux/w1.h>
#include <linux/completion.h>
#include <linux/mutex.h>
#define W1_SLAVE_ACTIVE 0
#define W1_SLAVE_DETACH 1
/**
* struct w1_async_cmd - execute callback from the w1_process kthread
* @async_entry: link entry
* @cb: callback function, must list_del and destroy this list before
* returning
*
* When inserted into the w1_master async_list, w1_process will execute
* the callback. Embed this into the structure with the command details.
*/
struct w1_async_cmd {
struct list_head async_entry;
void (*cb)(struct w1_master *dev, struct w1_async_cmd *async_cmd);
};
int w1_create_master_attributes(struct w1_master *master);
void w1_destroy_master_attributes(struct w1_master *master);
void w1_search(struct w1_master *dev, u8 search_type,
w1_slave_found_callback cb);
void w1_search_devices(struct w1_master *dev, u8 search_type,
w1_slave_found_callback cb);
/* call w1_unref_slave to release the reference counts w1_search_slave added */
struct w1_slave *w1_search_slave(struct w1_reg_num *id);
/*
* decrements the reference on sl->master and sl, and cleans up if zero
* returns the reference count after it has been decremented
*/
int w1_unref_slave(struct w1_slave *sl);
void w1_slave_found(struct w1_master *dev, u64 rn);
void w1_search_process_cb(struct w1_master *dev, u8 search_type,
w1_slave_found_callback cb);
struct w1_slave *w1_slave_search_device(struct w1_master *dev,
struct w1_reg_num *rn);
struct w1_master *w1_search_master_id(u32 id);
/* Disconnect and reconnect devices in the given family. Used for finding
* unclaimed devices after a family has been registered or releasing devices
* after a family has been unregistered. Set attach to 1 when a new family
* has just been registered, to 0 when it has been unregistered.
*/
void w1_reconnect_slaves(struct w1_family *f, int attach);
int w1_attach_slave_device(struct w1_master *dev, struct w1_reg_num *rn);
/* 0 success, otherwise EBUSY */
int w1_slave_detach(struct w1_slave *sl);
void __w1_remove_master_device(struct w1_master *dev);
void w1_family_put(struct w1_family *f);
void __w1_family_get(struct w1_family *f);
struct w1_family *w1_family_registered(u8 fid);
extern struct device_driver w1_master_driver;
extern struct device w1_master_device;
extern int w1_max_slave_count;
extern int w1_max_slave_ttl;
extern struct list_head w1_masters;
extern struct mutex w1_mlock;
extern spinlock_t w1_flock;
int w1_process_callbacks(struct w1_master *dev);
int w1_process(void *data);
#endif /* __W1_H */

2
drivers/w1/w1_io.c
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@ -18,7 +18,7 @@
#include <linux/moduleparam.h>
#include <linux/module.h>
#include "w1.h"
#include "w1_internal.h"
static int w1_delay_parm = 1;
module_param_named(delay_coef, w1_delay_parm, int, 0);

2
drivers/w1/w1_netlink.c
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@ -17,7 +17,7 @@
#include <linux/netlink.h>
#include <linux/connector.h>
#include "w1.h"
#include "w1_internal.h"
#include "w1_netlink.h"
#if defined(CONFIG_W1_CON) && (defined(CONFIG_CONNECTOR) || (defined(CONFIG_CONNECTOR_MODULE) && defined(CONFIG_W1_MODULE)))

2
drivers/w1/w1_netlink.h
View File

@ -18,7 +18,7 @@
#include <asm/types.h>
#include <linux/connector.h>
#include "w1.h"
#include "w1_internal.h"
/**
* enum w1_cn_msg_flags - bitfield flags for struct cn_msg.flags

114
drivers/w1/w1.h → include/linux/w1.h
View File

@ -12,8 +12,10 @@
* GNU General Public License for more details.
*/
#ifndef __W1_H
#define __W1_H
#ifndef __LINUX_W1_H
#define __LINUX_W1_H
#include <linux/device.h>
/**
* struct w1_reg_num - broken out slave device id
@ -22,8 +24,7 @@
* @id: along with family is the unique device id
* @crc: checksum of the other bytes
*/
struct w1_reg_num
{
struct w1_reg_num {
#if defined(__LITTLE_ENDIAN_BITFIELD)
__u64 family:8,
id:48,
@ -39,12 +40,6 @@ struct w1_reg_num
#ifdef __KERNEL__
#include <linux/completion.h>
#include <linux/device.h>
#include <linux/mutex.h>
#include "w1_family.h"
#define W1_MAXNAMELEN 32
#define W1_SEARCH 0xF0
@ -59,9 +54,6 @@ struct w1_reg_num
#define W1_MATCH_ROM 0x55
#define W1_RESUME_CMD 0xA5
#define W1_SLAVE_ACTIVE 0
#define W1_SLAVE_DETACH 1
/**
* struct w1_slave - holds a single slave device on the bus
*
@ -78,8 +70,7 @@ struct w1_reg_num
* @dev: kernel device identifier
*
*/
struct w1_slave
{
struct w1_slave {
struct module *owner;
unsigned char name[W1_MAXNAMELEN];
struct list_head w1_slave_entry;
@ -96,7 +87,6 @@ struct w1_slave
typedef void (*w1_slave_found_callback)(struct w1_master *, u64);
/**
* struct w1_bus_master - operations available on a bus master
*
@ -142,8 +132,7 @@ typedef void (*w1_slave_found_callback)(struct w1_master *, u64);
* reset_bus.
*
*/
struct w1_bus_master
{
struct w1_bus_master {
void *data;
u8 (*read_bit)(void *);
@ -209,8 +198,7 @@ enum w1_master_flags {
* @bus_master: io operations available
* @seq: sequence number used for netlink broadcasts
*/
struct w1_master
{
struct w1_master {
struct list_head w1_master_entry;
struct module *owner;
unsigned char name[W1_MAXNAMELEN];
@ -254,45 +242,51 @@ struct w1_master
u32 seq;
};
int w1_add_master_device(struct w1_bus_master *master);
void w1_remove_master_device(struct w1_bus_master *master);
/**
* struct w1_async_cmd - execute callback from the w1_process kthread
* @async_entry: link entry
* @cb: callback function, must list_del and destroy this list before
* returning
*
* When inserted into the w1_master async_list, w1_process will execute
* the callback. Embed this into the structure with the command details.
* struct w1_family_ops - operations for a family type
* @add_slave: add_slave
* @remove_slave: remove_slave
* @groups: sysfs group
*/
struct w1_async_cmd {
struct list_head async_entry;
void (*cb)(struct w1_master *dev, struct w1_async_cmd *async_cmd);
struct w1_family_ops {
int (*add_slave)(struct w1_slave *sl);
void (*remove_slave)(struct w1_slave *sl);
const struct attribute_group **groups;
};
int w1_create_master_attributes(struct w1_master *);
void w1_destroy_master_attributes(struct w1_master *master);
void w1_search(struct w1_master *dev, u8 search_type, w1_slave_found_callback cb);
void w1_search_devices(struct w1_master *dev, u8 search_type, w1_slave_found_callback cb);
/* call w1_unref_slave to release the reference counts w1_search_slave added */
struct w1_slave *w1_search_slave(struct w1_reg_num *id);
/* decrements the reference on sl->master and sl, and cleans up if zero
* returns the reference count after it has been decremented */
int w1_unref_slave(struct w1_slave *sl);
void w1_slave_found(struct w1_master *dev, u64 rn);
void w1_search_process_cb(struct w1_master *dev, u8 search_type,
w1_slave_found_callback cb);
struct w1_slave *w1_slave_search_device(struct w1_master *dev,
struct w1_reg_num *rn);
struct w1_master *w1_search_master_id(u32 id);
/* Disconnect and reconnect devices in the given family. Used for finding
* unclaimed devices after a family has been registered or releasing devices
* after a family has been unregistered. Set attach to 1 when a new family
* has just been registered, to 0 when it has been unregistered.
/**
* struct w1_family - reference counted family structure.
* @family_entry: family linked list
* @fid: 8 bit family identifier
* @fops: operations for this family
* @refcnt: reference counter
*/
void w1_reconnect_slaves(struct w1_family *f, int attach);
int w1_attach_slave_device(struct w1_master *dev, struct w1_reg_num *rn);
/* 0 success, otherwise EBUSY */
int w1_slave_detach(struct w1_slave *sl);
struct w1_family {
struct list_head family_entry;
u8 fid;
struct w1_family_ops *fops;
atomic_t refcnt;
};
int w1_register_family(struct w1_family *family);
void w1_unregister_family(struct w1_family *family);
/**
* module_w1_driver() - Helper macro for registering a 1-Wire families
* @__w1_family: w1_family struct
*
* Helper macro for 1-Wire families which do not do anything special in module
* init/exit. This eliminates a lot of boilerplate. Each module may only
* use this macro once, and calling it replaces module_init() and module_exit()
*/
#define module_w1_family(__w1_family) \
module_driver(__w1_family, w1_register_family, \
w1_unregister_family)
u8 w1_triplet(struct w1_master *dev, int bdir);
void w1_write_8(struct w1_master *, u8);
@ -321,16 +315,6 @@ static inline struct w1_master* dev_to_w1_master(struct device *dev)
return container_of(dev, struct w1_master, dev);
}
extern struct device_driver w1_master_driver;
extern struct device w1_master_device;
extern int w1_max_slave_count;
extern int w1_max_slave_ttl;
extern struct list_head w1_masters;
extern struct mutex w1_mlock;
extern int w1_process_callbacks(struct w1_master *dev);
extern int w1_process(void *);
#endif /* __KERNEL__ */
#endif /* __W1_H */
#endif /* __LINUX_W1_H */