Release 4.7 drivers/w1/slaves/w1_ds2760.c
/*
* 1-Wire implementation for the ds2760 chip
*
* Copyright © 2004-2005, Szabolcs Gyurko <szabolcs.gyurko@tlt.hu>
*
* Use consistent with the GNU GPL is permitted,
* provided that this copyright notice is
* preserved in its entirety in all copies and derived works.
*
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/types.h>
#include <linux/platform_device.h>
#include <linux/mutex.h>
#include <linux/idr.h>
#include <linux/gfp.h>
#include "../w1.h"
#include "../w1_int.h"
#include "../w1_family.h"
#include "w1_ds2760.h"
static int w1_ds2760_io(struct device *dev, char *buf, int addr, size_t count,
int io)
{
struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
if (!dev)
return 0;
mutex_lock(&sl->master->bus_mutex);
if (addr > DS2760_DATA_SIZE || addr < 0) {
count = 0;
goto out;
}
if (addr + count > DS2760_DATA_SIZE)
count = DS2760_DATA_SIZE - addr;
if (!w1_reset_select_slave(sl)) {
if (!io) {
w1_write_8(sl->master, W1_DS2760_READ_DATA);
w1_write_8(sl->master, addr);
count = w1_read_block(sl->master, buf, count);
} else {
w1_write_8(sl->master, W1_DS2760_WRITE_DATA);
w1_write_8(sl->master, addr);
w1_write_block(sl->master, buf, count);
/* XXX w1_write_block returns void, not n_written */
}
}
out:
mutex_unlock(&sl->master->bus_mutex);
return count;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| anton vorontsov | anton vorontsov | 184 | 98.92% | 1 | 50.00% |
| neil brown | neil brown | 2 | 1.08% | 1 | 50.00% |
| Total | 186 | 100.00% | 2 | 100.00% |
int w1_ds2760_read(struct device *dev, char *buf, int addr, size_t count)
{
return w1_ds2760_io(dev, buf, addr, count, 0);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| anton vorontsov | anton vorontsov | 34 | 100.00% | 1 | 100.00% |
| Total | 34 | 100.00% | 1 | 100.00% |
int w1_ds2760_write(struct device *dev, char *buf, int addr, size_t count)
{
return w1_ds2760_io(dev, buf, addr, count, 1);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| anton vorontsov | anton vorontsov | 34 | 100.00% | 1 | 100.00% |
| Total | 34 | 100.00% | 1 | 100.00% |
static int w1_ds2760_eeprom_cmd(struct device *dev, int addr, int cmd)
{
struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
if (!dev)
return -EINVAL;
mutex_lock(&sl->master->bus_mutex);
if (w1_reset_select_slave(sl) == 0) {
w1_write_8(sl->master, cmd);
w1_write_8(sl->master, addr);
}
mutex_unlock(&sl->master->bus_mutex);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| daniel mack | daniel mack | 91 | 97.85% | 1 | 50.00% |
| neil brown | neil brown | 2 | 2.15% | 1 | 50.00% |
| Total | 93 | 100.00% | 2 | 100.00% |
int w1_ds2760_store_eeprom(struct device *dev, int addr)
{
return w1_ds2760_eeprom_cmd(dev, addr, W1_DS2760_COPY_DATA);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| daniel mack | daniel mack | 23 | 100.00% | 1 | 100.00% |
| Total | 23 | 100.00% | 1 | 100.00% |
int w1_ds2760_recall_eeprom(struct device *dev, int addr)
{
return w1_ds2760_eeprom_cmd(dev, addr, W1_DS2760_RECALL_DATA);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| daniel mack | daniel mack | 23 | 100.00% | 1 | 100.00% |
| Total | 23 | 100.00% | 1 | 100.00% |
static ssize_t w1_slave_read(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr, char *buf,
loff_t off, size_t count)
{
struct device *dev = container_of(kobj, struct device, kobj);
return w1_ds2760_read(dev, buf, off, count);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| anton vorontsov | anton vorontsov | 47 | 81.03% | 1 | 25.00% |
| andrew morton | andrew morton | 5 | 8.62% | 1 | 25.00% |
| chris wright | chris wright | 5 | 8.62% | 1 | 25.00% |
| greg kroah-hartman | greg kroah-hartman | 1 | 1.72% | 1 | 25.00% |
| Total | 58 | 100.00% | 4 | 100.00% |
static BIN_ATTR_RO(w1_slave, DS2760_DATA_SIZE);
static struct bin_attribute *w1_ds2760_bin_attrs[] = {
&bin_attr_w1_slave,
NULL,
};
static const struct attribute_group w1_ds2760_group = {
.bin_attrs = w1_ds2760_bin_attrs,
};
static const struct attribute_group *w1_ds2760_groups[] = {
&w1_ds2760_group,
NULL,
};
static DEFINE_IDA(bat_ida);
static int w1_ds2760_add_slave(struct w1_slave *sl)
{
int ret;
int id;
struct platform_device *pdev;
id = ida_simple_get(&bat_ida, 0, 0, GFP_KERNEL);
if (id < 0) {
ret = id;
goto noid;
}
pdev = platform_device_alloc("ds2760-battery", id);
if (!pdev) {
ret = -ENOMEM;
goto pdev_alloc_failed;
}
pdev->dev.parent = &sl->dev;
ret = platform_device_add(pdev);
if (ret)
goto pdev_add_failed;
dev_set_drvdata(&sl->dev, pdev);
goto success;
pdev_add_failed:
platform_device_put(pdev);
pdev_alloc_failed:
ida_simple_remove(&bat_ida, id);
noid:
success:
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| anton vorontsov | anton vorontsov | 121 | 88.32% | 1 | 33.33% |
| jonathan cameron | jonathan cameron | 15 | 10.95% | 1 | 33.33% |
| wei yongjun | wei yongjun | 1 | 0.73% | 1 | 33.33% |
| Total | 137 | 100.00% | 3 | 100.00% |
static void w1_ds2760_remove_slave(struct w1_slave *sl)
{
struct platform_device *pdev = dev_get_drvdata(&sl->dev);
int id = pdev->id;
platform_device_unregister(pdev);
ida_simple_remove(&bat_ida, id);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| anton vorontsov | anton vorontsov | 40 | 90.91% | 1 | 50.00% |
| jonathan cameron | jonathan cameron | 4 | 9.09% | 1 | 50.00% |
| Total | 44 | 100.00% | 2 | 100.00% |
static struct w1_family_ops w1_ds2760_fops = {
.add_slave = w1_ds2760_add_slave,
.remove_slave = w1_ds2760_remove_slave,
.groups = w1_ds2760_groups,
};
static struct w1_family w1_ds2760_family = {
.fid = W1_FAMILY_DS2760,
.fops = &w1_ds2760_fops,
};
static int __init w1_ds2760_init(void)
{
pr_info("1-Wire driver for the DS2760 battery monitor chip - (c) 2004-2005, Szabolcs Gyurko\n");
ida_init(&bat_ida);
return w1_register_family(&w1_ds2760_family);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| anton vorontsov | anton vorontsov | 23 | 85.19% | 1 | 33.33% |
| jonathan cameron | jonathan cameron | 2 | 7.41% | 1 | 33.33% |
| fjodor schelichow | fjodor schelichow | 2 | 7.41% | 1 | 33.33% |
| Total | 27 | 100.00% | 3 | 100.00% |
static void __exit w1_ds2760_exit(void)
{
w1_unregister_family(&w1_ds2760_family);
ida_destroy(&bat_ida);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| anton vorontsov | anton vorontsov | 19 | 90.48% | 1 | 50.00% |
| jonathan cameron | jonathan cameron | 2 | 9.52% | 1 | 50.00% |
| Total | 21 | 100.00% | 2 | 100.00% |
EXPORT_SYMBOL(w1_ds2760_read);
EXPORT_SYMBOL(w1_ds2760_write);
EXPORT_SYMBOL(w1_ds2760_store_eeprom);
EXPORT_SYMBOL(w1_ds2760_recall_eeprom);
module_init(w1_ds2760_init);
module_exit(w1_ds2760_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Szabolcs Gyurko <szabolcs.gyurko@tlt.hu>");
MODULE_DESCRIPTION("1-wire Driver Dallas 2760 battery monitor chip");
MODULE_ALIAS("w1-family-" __stringify(W1_FAMILY_DS2760));
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| anton vorontsov | anton vorontsov | 621 | 71.63% | 1 | 9.09% |
| daniel mack | daniel mack | 147 | 16.96% | 1 | 9.09% |
| greg kroah-hartman | greg kroah-hartman | 45 | 5.19% | 1 | 9.09% |
| jonathan cameron | jonathan cameron | 25 | 2.88% | 1 | 9.09% |
| alexander stein | alexander stein | 9 | 1.04% | 1 | 9.09% |
| andrew morton | andrew morton | 5 | 0.58% | 1 | 9.09% |
| chris wright | chris wright | 5 | 0.58% | 1 | 9.09% |
| neil brown | neil brown | 4 | 0.46% | 1 | 9.09% |
| tejun heo | tejun heo | 3 | 0.35% | 1 | 9.09% |
| fjodor schelichow | fjodor schelichow | 2 | 0.23% | 1 | 9.09% |
| wei yongjun | wei yongjun | 1 | 0.12% | 1 | 9.09% |
| Total | 867 | 100.00% | 11 | 100.00% |
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