mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-11 04:18:39 +08:00
[PATCH] w1: cleanups.
- white space changes. - list_for_each_entry/list_for_each_entry_safe and reverse changes. - small coding style changes. - removed redundant NULL checks. - use attribute group and macros instead of direct device attributes. Patch is havily based on work from Adrian Bunk and Dmitry Torokhov, thanks guys. Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Evgeniy Polyakov
Greg Kroah-Hartman
parent
85e941cc9f
commit
7785925dd8
@ -3,9 +3,9 @@ menu "Dallas's 1-wire bus"
|
||||
config W1
|
||||
tristate "Dallas's 1-wire support"
|
||||
---help---
|
||||
Dallas's 1-wire bus is usefull to connect slow 1-pin devices
|
||||
Dallas's 1-wire bus is usefull to connect slow 1-pin devices
|
||||
such as iButtons and thermal sensors.
|
||||
|
||||
|
||||
If you want W1 support, you should say Y here.
|
||||
|
||||
This W1 support can also be built as a module. If so, the module
|
||||
@ -17,8 +17,8 @@ config W1_MATROX
|
||||
help
|
||||
Say Y here if you want to communicate with your 1-wire devices
|
||||
using Matrox's G400 GPIO pins.
|
||||
|
||||
This support is also available as a module. If so, the module
|
||||
|
||||
This support is also available as a module. If so, the module
|
||||
will be called matrox_w1.ko.
|
||||
|
||||
config W1_DS9490
|
||||
@ -27,17 +27,17 @@ config W1_DS9490
|
||||
help
|
||||
Say Y here if you want to have a driver for DS9490R UWB <-> W1 bridge.
|
||||
|
||||
This support is also available as a module. If so, the module
|
||||
This support is also available as a module. If so, the module
|
||||
will be called ds9490r.ko.
|
||||
|
||||
config W1_DS9490_BRIDGE
|
||||
config W1_DS9490R_BRIDGE
|
||||
tristate "DS9490R USB <-> W1 transport layer for 1-wire"
|
||||
depends on W1_DS9490
|
||||
help
|
||||
Say Y here if you want to communicate with your 1-wire devices
|
||||
using DS9490R USB bridge.
|
||||
|
||||
This support is also available as a module. If so, the module
|
||||
This support is also available as a module. If so, the module
|
||||
will be called ds_w1_bridge.ko.
|
||||
|
||||
config W1_THERM
|
||||
@ -51,7 +51,7 @@ config W1_SMEM
|
||||
tristate "Simple 64bit memory family implementation"
|
||||
depends on W1
|
||||
help
|
||||
Say Y here if you want to connect 1-wire
|
||||
Say Y here if you want to connect 1-wire
|
||||
simple 64bit memory rom(ds2401/ds2411/ds1990*) to you wire.
|
||||
|
||||
endmenu
|
||||
|
||||
@ -1,8 +1,8 @@
|
||||
/*
|
||||
* matrox_w1.c
|
||||
* matrox_w1.c
|
||||
*
|
||||
* Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
|
||||
*
|
||||
*
|
||||
*
|
||||
* 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
|
||||
@ -59,7 +59,7 @@ static struct pci_driver matrox_w1_pci_driver = {
|
||||
.remove = __devexit_p(matrox_w1_remove),
|
||||
};
|
||||
|
||||
/*
|
||||
/*
|
||||
* Matrox G400 DDC registers.
|
||||
*/
|
||||
|
||||
@ -177,8 +177,8 @@ static int __devinit matrox_w1_probe(struct pci_dev *pdev, const struct pci_devi
|
||||
|
||||
dev->bus_master = (struct w1_bus_master *)(dev + 1);
|
||||
|
||||
/*
|
||||
* True for G400, for some other we need resource 0, see drivers/video/matrox/matroxfb_base.c
|
||||
/*
|
||||
* True for G400, for some other we need resource 0, see drivers/video/matrox/matroxfb_base.c
|
||||
*/
|
||||
|
||||
dev->phys_addr = pci_resource_start(pdev, 1);
|
||||
|
||||
273
drivers/w1/w1.c
273
drivers/w1/w1.c
@ -1,8 +1,8 @@
|
||||
/*
|
||||
* w1.c
|
||||
* w1.c
|
||||
*
|
||||
* Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
|
||||
*
|
||||
*
|
||||
*
|
||||
* 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
|
||||
@ -99,6 +99,23 @@ static ssize_t w1_default_read_bin(struct kobject *kobj, char *buf, loff_t off,
|
||||
return sprintf(buf, "No family registered.\n");
|
||||
}
|
||||
|
||||
static struct device_attribute w1_slave_attribute =
|
||||
__ATTR(name, S_IRUGO, w1_default_read_name, NULL);
|
||||
|
||||
static struct device_attribute w1_slave_attribute_val =
|
||||
__ATTR(value, S_IRUGO, w1_default_read_name, NULL);
|
||||
|
||||
static struct bin_attribute w1_slave_bin_attribute = {
|
||||
.attr = {
|
||||
.name = "w1_slave",
|
||||
.mode = S_IRUGO,
|
||||
.owner = THIS_MODULE,
|
||||
},
|
||||
.size = W1_SLAVE_DATA_SIZE,
|
||||
.read = &w1_default_read_bin,
|
||||
};
|
||||
|
||||
|
||||
static struct bus_type w1_bus_type = {
|
||||
.name = "w1",
|
||||
.match = w1_master_match,
|
||||
@ -119,34 +136,16 @@ struct device w1_device = {
|
||||
.release = &w1_master_release
|
||||
};
|
||||
|
||||
static struct device_attribute w1_slave_attribute = {
|
||||
.attr = {
|
||||
.name = "name",
|
||||
.mode = S_IRUGO,
|
||||
.owner = THIS_MODULE
|
||||
},
|
||||
.show = &w1_default_read_name,
|
||||
};
|
||||
|
||||
static struct device_attribute w1_slave_attribute_val = {
|
||||
.attr = {
|
||||
.name = "value",
|
||||
.mode = S_IRUGO,
|
||||
.owner = THIS_MODULE
|
||||
},
|
||||
.show = &w1_default_read_name,
|
||||
};
|
||||
|
||||
static ssize_t w1_master_attribute_show_name(struct device *dev, struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct w1_master *md = container_of (dev, struct w1_master, dev);
|
||||
ssize_t count;
|
||||
|
||||
|
||||
if (down_interruptible (&md->mutex))
|
||||
return -EBUSY;
|
||||
|
||||
count = sprintf(buf, "%s\n", md->name);
|
||||
|
||||
|
||||
up(&md->mutex);
|
||||
|
||||
return count;
|
||||
@ -156,12 +155,12 @@ static ssize_t w1_master_attribute_show_pointer(struct device *dev, struct devic
|
||||
{
|
||||
struct w1_master *md = container_of(dev, struct w1_master, dev);
|
||||
ssize_t count;
|
||||
|
||||
|
||||
if (down_interruptible(&md->mutex))
|
||||
return -EBUSY;
|
||||
|
||||
count = sprintf(buf, "0x%p\n", md->bus_master);
|
||||
|
||||
|
||||
up(&md->mutex);
|
||||
return count;
|
||||
}
|
||||
@ -177,12 +176,12 @@ static ssize_t w1_master_attribute_show_max_slave_count(struct device *dev, stru
|
||||
{
|
||||
struct w1_master *md = container_of(dev, struct w1_master, dev);
|
||||
ssize_t count;
|
||||
|
||||
|
||||
if (down_interruptible(&md->mutex))
|
||||
return -EBUSY;
|
||||
|
||||
count = sprintf(buf, "%d\n", md->max_slave_count);
|
||||
|
||||
|
||||
up(&md->mutex);
|
||||
return count;
|
||||
}
|
||||
@ -191,12 +190,12 @@ static ssize_t w1_master_attribute_show_attempts(struct device *dev, struct devi
|
||||
{
|
||||
struct w1_master *md = container_of(dev, struct w1_master, dev);
|
||||
ssize_t count;
|
||||
|
||||
|
||||
if (down_interruptible(&md->mutex))
|
||||
return -EBUSY;
|
||||
|
||||
count = sprintf(buf, "%lu\n", md->attempts);
|
||||
|
||||
|
||||
up(&md->mutex);
|
||||
return count;
|
||||
}
|
||||
@ -205,12 +204,12 @@ static ssize_t w1_master_attribute_show_slave_count(struct device *dev, struct d
|
||||
{
|
||||
struct w1_master *md = container_of(dev, struct w1_master, dev);
|
||||
ssize_t count;
|
||||
|
||||
|
||||
if (down_interruptible(&md->mutex))
|
||||
return -EBUSY;
|
||||
|
||||
count = sprintf(buf, "%d\n", md->slave_count);
|
||||
|
||||
|
||||
up(&md->mutex);
|
||||
return count;
|
||||
}
|
||||
@ -233,7 +232,7 @@ static ssize_t w1_master_attribute_show_slaves(struct device *dev, struct device
|
||||
list_for_each_safe(ent, n, &md->slist) {
|
||||
sl = list_entry(ent, struct w1_slave, w1_slave_entry);
|
||||
|
||||
c -= snprintf(buf + PAGE_SIZE - c, c, "%s\n", sl->name);
|
||||
c -= snprintf(buf + PAGE_SIZE - c, c, "%s\n", sl->name);
|
||||
}
|
||||
}
|
||||
|
||||
@ -242,73 +241,44 @@ static ssize_t w1_master_attribute_show_slaves(struct device *dev, struct device
|
||||
return PAGE_SIZE - c;
|
||||
}
|
||||
|
||||
static struct device_attribute w1_master_attribute_slaves = {
|
||||
.attr = {
|
||||
.name = "w1_master_slaves",
|
||||
.mode = S_IRUGO,
|
||||
.owner = THIS_MODULE,
|
||||
},
|
||||
.show = &w1_master_attribute_show_slaves,
|
||||
};
|
||||
static struct device_attribute w1_master_attribute_slave_count = {
|
||||
.attr = {
|
||||
.name = "w1_master_slave_count",
|
||||
.mode = S_IRUGO,
|
||||
.owner = THIS_MODULE
|
||||
},
|
||||
.show = &w1_master_attribute_show_slave_count,
|
||||
};
|
||||
static struct device_attribute w1_master_attribute_attempts = {
|
||||
.attr = {
|
||||
.name = "w1_master_attempts",
|
||||
.mode = S_IRUGO,
|
||||
.owner = THIS_MODULE
|
||||
},
|
||||
.show = &w1_master_attribute_show_attempts,
|
||||
};
|
||||
static struct device_attribute w1_master_attribute_max_slave_count = {
|
||||
.attr = {
|
||||
.name = "w1_master_max_slave_count",
|
||||
.mode = S_IRUGO,
|
||||
.owner = THIS_MODULE
|
||||
},
|
||||
.show = &w1_master_attribute_show_max_slave_count,
|
||||
};
|
||||
static struct device_attribute w1_master_attribute_timeout = {
|
||||
.attr = {
|
||||
.name = "w1_master_timeout",
|
||||
.mode = S_IRUGO,
|
||||
.owner = THIS_MODULE
|
||||
},
|
||||
.show = &w1_master_attribute_show_timeout,
|
||||
};
|
||||
static struct device_attribute w1_master_attribute_pointer = {
|
||||
.attr = {
|
||||
.name = "w1_master_pointer",
|
||||
.mode = S_IRUGO,
|
||||
.owner = THIS_MODULE
|
||||
},
|
||||
.show = &w1_master_attribute_show_pointer,
|
||||
};
|
||||
static struct device_attribute w1_master_attribute_name = {
|
||||
.attr = {
|
||||
.name = "w1_master_name",
|
||||
.mode = S_IRUGO,
|
||||
.owner = THIS_MODULE
|
||||
},
|
||||
.show = &w1_master_attribute_show_name,
|
||||
#define W1_MASTER_ATTR_RO(_name, _mode) \
|
||||
struct device_attribute w1_master_attribute_##_name = \
|
||||
__ATTR(w1_master_##_name, _mode, \
|
||||
w1_master_attribute_show_##_name, NULL)
|
||||
|
||||
static W1_MASTER_ATTR_RO(name, S_IRUGO);
|
||||
static W1_MASTER_ATTR_RO(slaves, S_IRUGO);
|
||||
static W1_MASTER_ATTR_RO(slave_count, S_IRUGO);
|
||||
static W1_MASTER_ATTR_RO(max_slave_count, S_IRUGO);
|
||||
static W1_MASTER_ATTR_RO(attempts, S_IRUGO);
|
||||
static W1_MASTER_ATTR_RO(timeout, S_IRUGO);
|
||||
static W1_MASTER_ATTR_RO(pointer, S_IRUGO);
|
||||
|
||||
static struct attribute *w1_master_default_attrs[] = {
|
||||
&w1_master_attribute_name.attr,
|
||||
&w1_master_attribute_slaves.attr,
|
||||
&w1_master_attribute_slave_count.attr,
|
||||
&w1_master_attribute_max_slave_count.attr,
|
||||
&w1_master_attribute_attempts.attr,
|
||||
&w1_master_attribute_timeout.attr,
|
||||
&w1_master_attribute_pointer.attr,
|
||||
NULL
|
||||
};
|
||||
|
||||
static struct bin_attribute w1_slave_bin_attribute = {
|
||||
.attr = {
|
||||
.name = "w1_slave",
|
||||
.mode = S_IRUGO,
|
||||
.owner = THIS_MODULE,
|
||||
},
|
||||
.size = W1_SLAVE_DATA_SIZE,
|
||||
.read = &w1_default_read_bin,
|
||||
static struct attribute_group w1_master_defattr_group = {
|
||||
.attrs = w1_master_default_attrs,
|
||||
};
|
||||
|
||||
int w1_create_master_attributes(struct w1_master *master)
|
||||
{
|
||||
return sysfs_create_group(&master->dev.kobj, &w1_master_defattr_group);
|
||||
}
|
||||
|
||||
void w1_destroy_master_attributes(struct w1_master *master)
|
||||
{
|
||||
sysfs_remove_group(&master->dev.kobj, &w1_master_defattr_group);
|
||||
}
|
||||
|
||||
static int __w1_attach_slave_device(struct w1_slave *sl)
|
||||
{
|
||||
int err;
|
||||
@ -341,7 +311,7 @@ static int __w1_attach_slave_device(struct w1_slave *sl)
|
||||
memcpy(&sl->attr_bin, &w1_slave_bin_attribute, sizeof(sl->attr_bin));
|
||||
memcpy(&sl->attr_name, &w1_slave_attribute, sizeof(sl->attr_name));
|
||||
memcpy(&sl->attr_val, &w1_slave_attribute_val, sizeof(sl->attr_val));
|
||||
|
||||
|
||||
sl->attr_bin.read = sl->family->fops->rbin;
|
||||
sl->attr_name.show = sl->family->fops->rname;
|
||||
sl->attr_val.show = sl->family->fops->rval;
|
||||
@ -445,7 +415,7 @@ static int w1_attach_slave_device(struct w1_master *dev, struct w1_reg_num *rn)
|
||||
static void w1_slave_detach(struct w1_slave *sl)
|
||||
{
|
||||
struct w1_netlink_msg msg;
|
||||
|
||||
|
||||
dev_info(&sl->dev, "%s: detaching %s.\n", __func__, sl->name);
|
||||
|
||||
while (atomic_read(&sl->refcnt)) {
|
||||
@ -471,8 +441,8 @@ static struct w1_master *w1_search_master(unsigned long data)
|
||||
{
|
||||
struct w1_master *dev;
|
||||
int found = 0;
|
||||
|
||||
spin_lock_irq(&w1_mlock);
|
||||
|
||||
spin_lock_bh(&w1_mlock);
|
||||
list_for_each_entry(dev, &w1_masters, w1_master_entry) {
|
||||
if (dev->bus_master->data == data) {
|
||||
found = 1;
|
||||
@ -480,12 +450,12 @@ static struct w1_master *w1_search_master(unsigned long data)
|
||||
break;
|
||||
}
|
||||
}
|
||||
spin_unlock_irq(&w1_mlock);
|
||||
spin_unlock_bh(&w1_mlock);
|
||||
|
||||
return (found)?dev:NULL;
|
||||
}
|
||||
|
||||
void w1_slave_found(unsigned long data, u64 rn)
|
||||
static void w1_slave_found(unsigned long data, u64 rn)
|
||||
{
|
||||
int slave_count;
|
||||
struct w1_slave *sl;
|
||||
@ -500,7 +470,7 @@ void w1_slave_found(unsigned long data, u64 rn)
|
||||
data);
|
||||
return;
|
||||
}
|
||||
|
||||
|
||||
tmp = (struct w1_reg_num *) &rn;
|
||||
|
||||
slave_count = 0;
|
||||
@ -513,8 +483,7 @@ void w1_slave_found(unsigned long data, u64 rn)
|
||||
sl->reg_num.crc == tmp->crc) {
|
||||
set_bit(W1_SLAVE_ACTIVE, (long *)&sl->flags);
|
||||
break;
|
||||
}
|
||||
else if (sl->reg_num.family == tmp->family) {
|
||||
} else if (sl->reg_num.family == tmp->family) {
|
||||
family_found = 1;
|
||||
break;
|
||||
}
|
||||
@ -528,7 +497,7 @@ void w1_slave_found(unsigned long data, u64 rn)
|
||||
rn && ((le64_to_cpu(rn) >> 56) & 0xff) == w1_calc_crc8((u8 *)&rn, 7)) {
|
||||
w1_attach_slave_device(dev, tmp);
|
||||
}
|
||||
|
||||
|
||||
atomic_dec(&dev->refcnt);
|
||||
}
|
||||
|
||||
@ -545,8 +514,8 @@ void w1_search(struct w1_master *dev)
|
||||
|
||||
desc_bit = 64;
|
||||
|
||||
while (!(id_bit && comp_bit) && !last_device
|
||||
&& count++ < dev->max_slave_count) {
|
||||
while (!(id_bit && comp_bit) && !last_device &&
|
||||
count++ < dev->max_slave_count) {
|
||||
last = rn;
|
||||
rn = 0;
|
||||
|
||||
@ -591,8 +560,7 @@ void w1_search(struct w1_master *dev)
|
||||
last_family_desc = last_zero;
|
||||
}
|
||||
|
||||
}
|
||||
else
|
||||
} else
|
||||
search_bit = id_bit;
|
||||
|
||||
tmp = search_bit;
|
||||
@ -615,42 +583,15 @@ void w1_search(struct w1_master *dev)
|
||||
last_device = 1;
|
||||
|
||||
desc_bit = last_zero;
|
||||
|
||||
|
||||
w1_slave_found(dev->bus_master->data, rn);
|
||||
}
|
||||
}
|
||||
|
||||
int w1_create_master_attributes(struct w1_master *dev)
|
||||
static int w1_control(void *data)
|
||||
{
|
||||
if ( device_create_file(&dev->dev, &w1_master_attribute_slaves) < 0 ||
|
||||
device_create_file(&dev->dev, &w1_master_attribute_slave_count) < 0 ||
|
||||
device_create_file(&dev->dev, &w1_master_attribute_attempts) < 0 ||
|
||||
device_create_file(&dev->dev, &w1_master_attribute_max_slave_count) < 0 ||
|
||||
device_create_file(&dev->dev, &w1_master_attribute_timeout) < 0||
|
||||
device_create_file(&dev->dev, &w1_master_attribute_pointer) < 0||
|
||||
device_create_file(&dev->dev, &w1_master_attribute_name) < 0)
|
||||
return -EINVAL;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void w1_destroy_master_attributes(struct w1_master *dev)
|
||||
{
|
||||
device_remove_file(&dev->dev, &w1_master_attribute_slaves);
|
||||
device_remove_file(&dev->dev, &w1_master_attribute_slave_count);
|
||||
device_remove_file(&dev->dev, &w1_master_attribute_attempts);
|
||||
device_remove_file(&dev->dev, &w1_master_attribute_max_slave_count);
|
||||
device_remove_file(&dev->dev, &w1_master_attribute_timeout);
|
||||
device_remove_file(&dev->dev, &w1_master_attribute_pointer);
|
||||
device_remove_file(&dev->dev, &w1_master_attribute_name);
|
||||
}
|
||||
|
||||
|
||||
int w1_control(void *data)
|
||||
{
|
||||
struct w1_slave *sl;
|
||||
struct w1_master *dev;
|
||||
struct list_head *ent, *ment, *n, *mn;
|
||||
struct w1_slave *sl, *sln;
|
||||
struct w1_master *dev, *n;
|
||||
int err, have_to_wait = 0;
|
||||
|
||||
daemonize("w1_control");
|
||||
@ -665,9 +606,7 @@ int w1_control(void *data)
|
||||
if (signal_pending(current))
|
||||
flush_signals(current);
|
||||
|
||||
list_for_each_safe(ment, mn, &w1_masters) {
|
||||
dev = list_entry(ment, struct w1_master, w1_master_entry);
|
||||
|
||||
list_for_each_entry_safe(dev, n, &w1_masters, w1_master_entry) {
|
||||
if (!control_needs_exit && !dev->need_exit)
|
||||
continue;
|
||||
/*
|
||||
@ -679,9 +618,9 @@ int w1_control(void *data)
|
||||
continue;
|
||||
}
|
||||
|
||||
spin_lock(&w1_mlock);
|
||||
spin_lock_bh(&w1_mlock);
|
||||
list_del(&dev->w1_master_entry);
|
||||
spin_unlock(&w1_mlock);
|
||||
spin_unlock_bh(&w1_mlock);
|
||||
|
||||
if (control_needs_exit) {
|
||||
dev->need_exit = 1;
|
||||
@ -695,19 +634,11 @@ int w1_control(void *data)
|
||||
|
||||
wait_for_completion(&dev->dev_exited);
|
||||
|
||||
list_for_each_safe(ent, n, &dev->slist) {
|
||||
sl = list_entry(ent, struct w1_slave, w1_slave_entry);
|
||||
list_for_each_entry_safe(sl, sln, &dev->slist, w1_slave_entry) {
|
||||
list_del(&sl->w1_slave_entry);
|
||||
|
||||
if (!sl)
|
||||
dev_warn(&dev->dev,
|
||||
"%s: slave entry is NULL.\n",
|
||||
__func__);
|
||||
else {
|
||||
list_del(&sl->w1_slave_entry);
|
||||
|
||||
w1_slave_detach(sl);
|
||||
kfree(sl);
|
||||
}
|
||||
w1_slave_detach(sl);
|
||||
kfree(sl);
|
||||
}
|
||||
w1_destroy_master_attributes(dev);
|
||||
atomic_dec(&dev->refcnt);
|
||||
@ -720,8 +651,7 @@ int w1_control(void *data)
|
||||
int w1_process(void *data)
|
||||
{
|
||||
struct w1_master *dev = (struct w1_master *) data;
|
||||
struct list_head *ent, *n;
|
||||
struct w1_slave *sl;
|
||||
struct w1_slave *sl, *sln;
|
||||
|
||||
daemonize("%s", dev->name);
|
||||
allow_signal(SIGTERM);
|
||||
@ -742,27 +672,20 @@ int w1_process(void *data)
|
||||
if (down_interruptible(&dev->mutex))
|
||||
continue;
|
||||
|
||||
list_for_each_safe(ent, n, &dev->slist) {
|
||||
sl = list_entry(ent, struct w1_slave, w1_slave_entry);
|
||||
|
||||
if (sl)
|
||||
list_for_each_entry(sl, &dev->slist, w1_slave_entry)
|
||||
clear_bit(W1_SLAVE_ACTIVE, (long *)&sl->flags);
|
||||
}
|
||||
|
||||
|
||||
w1_search_devices(dev, w1_slave_found);
|
||||
|
||||
list_for_each_safe(ent, n, &dev->slist) {
|
||||
sl = list_entry(ent, struct w1_slave, w1_slave_entry);
|
||||
|
||||
if (sl && !test_bit(W1_SLAVE_ACTIVE, (unsigned long *)&sl->flags) && !--sl->ttl) {
|
||||
list_for_each_entry_safe(sl, sln, &dev->slist, w1_slave_entry) {
|
||||
if (!test_bit(W1_SLAVE_ACTIVE, (unsigned long *)&sl->flags) && !--sl->ttl) {
|
||||
list_del (&sl->w1_slave_entry);
|
||||
|
||||
w1_slave_detach (sl);
|
||||
kfree (sl);
|
||||
|
||||
dev->slave_count--;
|
||||
}
|
||||
else if (test_bit(W1_SLAVE_ACTIVE, (unsigned long *)&sl->flags))
|
||||
} else if (test_bit(W1_SLAVE_ACTIVE, (unsigned long *)&sl->flags))
|
||||
sl->ttl = dev->slave_ttl;
|
||||
}
|
||||
up(&dev->mutex);
|
||||
@ -774,7 +697,7 @@ int w1_process(void *data)
|
||||
return 0;
|
||||
}
|
||||
|
||||
int w1_init(void)
|
||||
static int w1_init(void)
|
||||
{
|
||||
int retval;
|
||||
|
||||
@ -814,18 +737,14 @@ err_out_exit_init:
|
||||
return retval;
|
||||
}
|
||||
|
||||
void w1_fini(void)
|
||||
static void w1_fini(void)
|
||||
{
|
||||
struct w1_master *dev;
|
||||
struct list_head *ent, *n;
|
||||
|
||||
list_for_each_safe(ent, n, &w1_masters) {
|
||||
dev = list_entry(ent, struct w1_master, w1_master_entry);
|
||||
list_for_each_entry(dev, &w1_masters, w1_master_entry)
|
||||
__w1_remove_master_device(dev);
|
||||
}
|
||||
|
||||
control_needs_exit = 1;
|
||||
|
||||
wait_for_completion(&w1_control_complete);
|
||||
|
||||
driver_unregister(&w1_driver);
|
||||
|
||||
@ -1,8 +1,8 @@
|
||||
/*
|
||||
* w1.h
|
||||
* w1.h
|
||||
*
|
||||
* Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
|
||||
*
|
||||
*
|
||||
*
|
||||
* 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
|
||||
@ -25,9 +25,9 @@
|
||||
struct w1_reg_num
|
||||
{
|
||||
#if defined(__LITTLE_ENDIAN_BITFIELD)
|
||||
__u64 family:8,
|
||||
id:48,
|
||||
crc:8;
|
||||
__u64 family:8,
|
||||
id:48,
|
||||
crc:8;
|
||||
#elif defined(__BIG_ENDIAN_BITFIELD)
|
||||
__u64 crc:8,
|
||||
id:48,
|
||||
@ -74,11 +74,11 @@ struct w1_slave
|
||||
int ttl;
|
||||
|
||||
struct w1_master *master;
|
||||
struct w1_family *family;
|
||||
struct device dev;
|
||||
struct completion dev_released;
|
||||
struct w1_family *family;
|
||||
struct device dev;
|
||||
struct completion dev_released;
|
||||
|
||||
struct bin_attribute attr_bin;
|
||||
struct bin_attribute attr_bin;
|
||||
struct device_attribute attr_name, attr_val;
|
||||
};
|
||||
|
||||
@ -90,16 +90,16 @@ struct w1_bus_master
|
||||
|
||||
u8 (*read_bit)(unsigned long);
|
||||
void (*write_bit)(unsigned long, u8);
|
||||
|
||||
|
||||
u8 (*read_byte)(unsigned long);
|
||||
void (*write_byte)(unsigned long, u8);
|
||||
|
||||
void (*write_byte)(unsigned long, u8);
|
||||
|
||||
u8 (*read_block)(unsigned long, u8 *, int);
|
||||
void (*write_block)(unsigned long, u8 *, int);
|
||||
|
||||
u8 (*touch_bit)(unsigned long, u8);
|
||||
|
||||
u8 (*reset_bus)(unsigned long);
|
||||
|
||||
u8 (*touch_bit)(unsigned long, u8);
|
||||
|
||||
u8 (*reset_bus)(unsigned long);
|
||||
|
||||
void (*search)(unsigned long, w1_slave_found_callback);
|
||||
};
|
||||
@ -123,21 +123,20 @@ struct w1_master
|
||||
|
||||
int need_exit;
|
||||
pid_t kpid;
|
||||
struct semaphore mutex;
|
||||
struct semaphore mutex;
|
||||
|
||||
struct device_driver *driver;
|
||||
struct device dev;
|
||||
struct completion dev_released;
|
||||
struct completion dev_exited;
|
||||
struct device dev;
|
||||
struct completion dev_released;
|
||||
struct completion dev_exited;
|
||||
|
||||
struct w1_bus_master *bus_master;
|
||||
|
||||
u32 seq, groups;
|
||||
struct sock *nls;
|
||||
struct sock *nls;
|
||||
};
|
||||
|
||||
int w1_create_master_attributes(struct w1_master *);
|
||||
void w1_destroy_master_attributes(struct w1_master *);
|
||||
void w1_search(struct w1_master *dev);
|
||||
|
||||
#endif /* __KERNEL__ */
|
||||
|
||||
@ -1,8 +1,8 @@
|
||||
/*
|
||||
* w1_family.c
|
||||
* w1_family.c
|
||||
*
|
||||
* Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
|
||||
*
|
||||
*
|
||||
*
|
||||
* 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
|
||||
|
||||
@ -1,8 +1,8 @@
|
||||
/*
|
||||
* w1_family.h
|
||||
* w1_family.h
|
||||
*
|
||||
* Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
|
||||
*
|
||||
*
|
||||
*
|
||||
* 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
|
||||
@ -39,7 +39,7 @@ struct w1_family_ops
|
||||
{
|
||||
ssize_t (* rname)(struct device *, struct device_attribute *, char *);
|
||||
ssize_t (* rbin)(struct kobject *, char *, loff_t, size_t);
|
||||
|
||||
|
||||
ssize_t (* rval)(struct device *, struct device_attribute *, char *);
|
||||
unsigned char rvalname[MAXNAMELEN];
|
||||
};
|
||||
@ -48,9 +48,9 @@ struct w1_family
|
||||
{
|
||||
struct list_head family_entry;
|
||||
u8 fid;
|
||||
|
||||
|
||||
struct w1_family_ops *fops;
|
||||
|
||||
|
||||
atomic_t refcnt;
|
||||
u8 need_exit;
|
||||
};
|
||||
|
||||
@ -1,8 +1,8 @@
|
||||
/*
|
||||
* w1_int.c
|
||||
* w1_int.c
|
||||
*
|
||||
* Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
|
||||
*
|
||||
*
|
||||
*
|
||||
* 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
|
||||
@ -39,8 +39,9 @@ extern spinlock_t w1_mlock;
|
||||
|
||||
extern int w1_process(void *);
|
||||
|
||||
struct w1_master * w1_alloc_dev(u32 id, int slave_count, int slave_ttl,
|
||||
struct device_driver *driver, struct device *device)
|
||||
static struct w1_master * w1_alloc_dev(u32 id, int slave_count, int slave_ttl,
|
||||
struct device_driver *driver,
|
||||
struct device *device)
|
||||
{
|
||||
struct w1_master *dev;
|
||||
int err;
|
||||
@ -60,13 +61,13 @@ struct w1_master * w1_alloc_dev(u32 id, int slave_count, int slave_ttl,
|
||||
|
||||
dev->bus_master = (struct w1_bus_master *)(dev + 1);
|
||||
|
||||
dev->owner = THIS_MODULE;
|
||||
dev->max_slave_count = slave_count;
|
||||
dev->slave_count = 0;
|
||||
dev->attempts = 0;
|
||||
dev->kpid = -1;
|
||||
dev->initialized = 0;
|
||||
dev->id = id;
|
||||
dev->owner = THIS_MODULE;
|
||||
dev->max_slave_count = slave_count;
|
||||
dev->slave_count = 0;
|
||||
dev->attempts = 0;
|
||||
dev->kpid = -1;
|
||||
dev->initialized = 0;
|
||||
dev->id = id;
|
||||
dev->slave_ttl = slave_ttl;
|
||||
|
||||
atomic_set(&dev->refcnt, 2);
|
||||
@ -105,7 +106,7 @@ struct w1_master * w1_alloc_dev(u32 id, int slave_count, int slave_ttl,
|
||||
return dev;
|
||||
}
|
||||
|
||||
void w1_free_dev(struct w1_master *dev)
|
||||
static void w1_free_dev(struct w1_master *dev)
|
||||
{
|
||||
device_unregister(&dev->dev);
|
||||
if (dev->nls && dev->nls->sk_socket)
|
||||
@ -197,10 +198,8 @@ void __w1_remove_master_device(struct w1_master *dev)
|
||||
void w1_remove_master_device(struct w1_bus_master *bm)
|
||||
{
|
||||
struct w1_master *dev = NULL;
|
||||
struct list_head *ent, *n;
|
||||
|
||||
list_for_each_safe(ent, n, &w1_masters) {
|
||||
dev = list_entry(ent, struct w1_master, w1_master_entry);
|
||||
list_for_each_entry(dev, &w1_masters, w1_master_entry) {
|
||||
if (!dev->initialized)
|
||||
continue;
|
||||
|
||||
|
||||
@ -1,8 +1,8 @@
|
||||
/*
|
||||
* w1_int.h
|
||||
* w1_int.h
|
||||
*
|
||||
* Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
|
||||
*
|
||||
*
|
||||
*
|
||||
* 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
|
||||
@ -27,8 +27,6 @@
|
||||
|
||||
#include "w1.h"
|
||||
|
||||
struct w1_master * w1_alloc_dev(u32, int, int, struct device_driver *, struct device *);
|
||||
void w1_free_dev(struct w1_master *dev);
|
||||
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 *);
|
||||
|
||||
@ -1,8 +1,8 @@
|
||||
/*
|
||||
* w1_io.c
|
||||
* w1_io.c
|
||||
*
|
||||
* Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
|
||||
*
|
||||
*
|
||||
*
|
||||
* 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
|
||||
|
||||
@ -1,8 +1,8 @@
|
||||
/*
|
||||
* w1_io.h
|
||||
* w1_io.h
|
||||
*
|
||||
* Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
|
||||
*
|
||||
*
|
||||
*
|
||||
* 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
|
||||
|
||||
@ -1,8 +1,8 @@
|
||||
/*
|
||||
* w1_log.h
|
||||
* w1_log.h
|
||||
*
|
||||
* Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
|
||||
*
|
||||
*
|
||||
*
|
||||
* 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
|
||||
|
||||
@ -33,13 +33,13 @@ enum w1_netlink_message_types {
|
||||
W1_MASTER_REMOVE,
|
||||
};
|
||||
|
||||
struct w1_netlink_msg
|
||||
struct w1_netlink_msg
|
||||
{
|
||||
__u8 type;
|
||||
__u8 reserved[3];
|
||||
union
|
||||
{
|
||||
struct w1_reg_num id;
|
||||
struct w1_reg_num id;
|
||||
__u64 w1_id;
|
||||
struct
|
||||
{
|
||||
|
||||
@ -1,8 +1,8 @@
|
||||
/*
|
||||
* w1_smem.c
|
||||
* w1_smem.c
|
||||
*
|
||||
* Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
|
||||
*
|
||||
*
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the smems of the GNU General Public License as published by
|
||||
@ -70,7 +70,7 @@ static ssize_t w1_smem_read_val(struct device *dev, struct device_attribute *att
|
||||
static ssize_t w1_smem_read_bin(struct kobject *kobj, char *buf, loff_t off, size_t count)
|
||||
{
|
||||
struct w1_slave *sl = container_of(container_of(kobj, struct device, kobj),
|
||||
struct w1_slave, dev);
|
||||
struct w1_slave, dev);
|
||||
int i;
|
||||
|
||||
atomic_inc(&sl->refcnt);
|
||||
@ -90,7 +90,7 @@ static ssize_t w1_smem_read_bin(struct kobject *kobj, char *buf, loff_t off, siz
|
||||
for (i = 0; i < 8; ++i)
|
||||
count += sprintf(buf + count, "%02x ", ((u8 *)&sl->reg_num)[i]);
|
||||
count += sprintf(buf + count, "\n");
|
||||
|
||||
|
||||
out:
|
||||
up(&sl->master->mutex);
|
||||
out_dec:
|
||||
|
||||
@ -1,8 +1,8 @@
|
||||
/*
|
||||
* w1_therm.c
|
||||
* w1_therm.c
|
||||
*
|
||||
* Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
|
||||
*
|
||||
*
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the therms of the GNU General Public License as published by
|
||||
@ -38,7 +38,7 @@ MODULE_AUTHOR("Evgeniy Polyakov <johnpol@2ka.mipt.ru>");
|
||||
MODULE_DESCRIPTION("Driver for 1-wire Dallas network protocol, temperature family.");
|
||||
|
||||
static u8 bad_roms[][9] = {
|
||||
{0xaa, 0x00, 0x4b, 0x46, 0xff, 0xff, 0x0c, 0x10, 0x87},
|
||||
{0xaa, 0x00, 0x4b, 0x46, 0xff, 0xff, 0x0c, 0x10, 0x87},
|
||||
{}
|
||||
};
|
||||
|
||||
@ -163,7 +163,7 @@ static int w1_therm_check_rom(u8 rom[9])
|
||||
static ssize_t w1_therm_read_bin(struct kobject *kobj, char *buf, loff_t off, size_t count)
|
||||
{
|
||||
struct w1_slave *sl = container_of(container_of(kobj, struct device, kobj),
|
||||
struct w1_slave, dev);
|
||||
struct w1_slave, dev);
|
||||
struct w1_master *dev = sl->master;
|
||||
u8 rom[9], crc, verdict;
|
||||
int i, max_trying = 10;
|
||||
@ -198,7 +198,7 @@ static ssize_t w1_therm_read_bin(struct kobject *kobj, char *buf, loff_t off, si
|
||||
unsigned int tm = 750;
|
||||
|
||||
memcpy(&match[1], (u64 *) & sl->reg_num, 8);
|
||||
|
||||
|
||||
w1_write_block(dev, match, 9);
|
||||
|
||||
w1_write_8(dev, W1_CONVERT_TEMP);
|
||||
@ -211,7 +211,7 @@ static ssize_t w1_therm_read_bin(struct kobject *kobj, char *buf, loff_t off, si
|
||||
|
||||
if (!w1_reset_bus (dev)) {
|
||||
w1_write_block(dev, match, 9);
|
||||
|
||||
|
||||
w1_write_8(dev, W1_READ_SCRATCHPAD);
|
||||
if ((count = w1_read_block(dev, rom, 9)) != 9) {
|
||||
dev_warn(&dev->dev, "w1_read_block() returned %d instead of 9.\n", count);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user