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-rw-r--r--drivers/w1/slaves/w1_ds2760.c30
-rw-r--r--drivers/w1/slaves/w1_ds2760.h7
2 files changed, 37 insertions, 0 deletions
diff --git a/drivers/w1/slaves/w1_ds2760.c b/drivers/w1/slaves/w1_ds2760.c
index 1f09d4e4144c..59f708efe25f 100644
--- a/drivers/w1/slaves/w1_ds2760.c
+++ b/drivers/w1/slaves/w1_ds2760.c
@@ -68,6 +68,34 @@ int w1_ds2760_write(struct device *dev, char *buf, int addr, size_t count)
68 return w1_ds2760_io(dev, buf, addr, count, 1); 68 return w1_ds2760_io(dev, buf, addr, count, 1);
69} 69}
70 70
71static int w1_ds2760_eeprom_cmd(struct device *dev, int addr, int cmd)
72{
73 struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
74
75 if (!dev)
76 return -EINVAL;
77
78 mutex_lock(&sl->master->mutex);
79
80 if (w1_reset_select_slave(sl) == 0) {
81 w1_write_8(sl->master, cmd);
82 w1_write_8(sl->master, addr);
83 }
84
85 mutex_unlock(&sl->master->mutex);
86 return 0;
87}
88
89int w1_ds2760_store_eeprom(struct device *dev, int addr)
90{
91 return w1_ds2760_eeprom_cmd(dev, addr, W1_DS2760_COPY_DATA);
92}
93
94int w1_ds2760_recall_eeprom(struct device *dev, int addr)
95{
96 return w1_ds2760_eeprom_cmd(dev, addr, W1_DS2760_RECALL_DATA);
97}
98
71static ssize_t w1_ds2760_read_bin(struct kobject *kobj, 99static ssize_t w1_ds2760_read_bin(struct kobject *kobj,
72 struct bin_attribute *bin_attr, 100 struct bin_attribute *bin_attr,
73 char *buf, loff_t off, size_t count) 101 char *buf, loff_t off, size_t count)
@@ -200,6 +228,8 @@ static void __exit w1_ds2760_exit(void)
200 228
201EXPORT_SYMBOL(w1_ds2760_read); 229EXPORT_SYMBOL(w1_ds2760_read);
202EXPORT_SYMBOL(w1_ds2760_write); 230EXPORT_SYMBOL(w1_ds2760_write);
231EXPORT_SYMBOL(w1_ds2760_store_eeprom);
232EXPORT_SYMBOL(w1_ds2760_recall_eeprom);
203 233
204module_init(w1_ds2760_init); 234module_init(w1_ds2760_init);
205module_exit(w1_ds2760_exit); 235module_exit(w1_ds2760_exit);
diff --git a/drivers/w1/slaves/w1_ds2760.h b/drivers/w1/slaves/w1_ds2760.h
index f1302429cb02..58e774141568 100644
--- a/drivers/w1/slaves/w1_ds2760.h
+++ b/drivers/w1/slaves/w1_ds2760.h
@@ -25,6 +25,10 @@
25 25
26#define DS2760_PROTECTION_REG 0x00 26#define DS2760_PROTECTION_REG 0x00
27#define DS2760_STATUS_REG 0x01 27#define DS2760_STATUS_REG 0x01
28 #define DS2760_STATUS_IE (1 << 2)
29 #define DS2760_STATUS_SWEN (1 << 3)
30 #define DS2760_STATUS_RNAOP (1 << 4)
31 #define DS2760_STATUS_PMOD (1 << 5)
28#define DS2760_EEPROM_REG 0x07 32#define DS2760_EEPROM_REG 0x07
29#define DS2760_SPECIAL_FEATURE_REG 0x08 33#define DS2760_SPECIAL_FEATURE_REG 0x08
30#define DS2760_VOLTAGE_MSB 0x0c 34#define DS2760_VOLTAGE_MSB 0x0c
@@ -38,6 +42,7 @@
38#define DS2760_EEPROM_BLOCK0 0x20 42#define DS2760_EEPROM_BLOCK0 0x20
39#define DS2760_ACTIVE_FULL 0x20 43#define DS2760_ACTIVE_FULL 0x20
40#define DS2760_EEPROM_BLOCK1 0x30 44#define DS2760_EEPROM_BLOCK1 0x30
45#define DS2760_STATUS_WRITE_REG 0x31
41#define DS2760_RATED_CAPACITY 0x32 46#define DS2760_RATED_CAPACITY 0x32
42#define DS2760_CURRENT_OFFSET_BIAS 0x33 47#define DS2760_CURRENT_OFFSET_BIAS 0x33
43#define DS2760_ACTIVE_EMPTY 0x3b 48#define DS2760_ACTIVE_EMPTY 0x3b
@@ -46,5 +51,7 @@ extern int w1_ds2760_read(struct device *dev, char *buf, int addr,
46 size_t count); 51 size_t count);
47extern int w1_ds2760_write(struct device *dev, char *buf, int addr, 52extern int w1_ds2760_write(struct device *dev, char *buf, int addr,
48 size_t count); 53 size_t count);
54extern int w1_ds2760_store_eeprom(struct device *dev, int addr);
55extern int w1_ds2760_recall_eeprom(struct device *dev, int addr);
49 56
50#endif /* !__w1_ds2760_h__ */ 57#endif /* !__w1_ds2760_h__ */