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-rwxr-xr-xina2602.c297
1 files changed, 0 insertions, 297 deletions
diff --git a/ina2602.c b/ina2602.c
deleted file mode 100755
index 0da08c1..0000000
--- a/ina2602.c
+++ /dev/null
@@ -1,297 +0,0 @@
-#include "linux/module.h"
-#include "linux/uaccess.h"
-#include "linux/i2c.h"
-#include "linux/kobject.h"
-#include "linux/slab.h"
-#include "linux/kernel.h"
-#include <linux/sysfs.h>
-#include <linux/hwmon.h>
-
-// ina260 chip registers
-#define INA260_REG_CONFIGURATION 0x00
-#define INA260_REG_CURRENT 0x01
-#define INA260_REG_VOLTAGE 0x02
-#define INA260_REG_POWER 0x03
-#define INA260_REG_MASKENABLE 0x06
-#define INA260_REG_ALERTLIMIT 0x07
-#define INA260_REG_MANUFACTURER 0xFE
-#define INA260_REG_DIE 0xFF
-
-#undef current
-
-#define INA260_REG_SHOW(_attr,_reg) \
-static ssize_t _attr##_show(struct device *dev, struct device_attribute *attr, char *buf) \
-{ \
- int rvalue; struct client_data *cdata=dev_get_drvdata(dev); \
- if(ina260_read_register(cdata,(_reg),&rvalue)) \
- return -1; \
- return sprintf(buf, "%x\n", rvalue); \
-}
-
-#define INA260_REG_STORE(_attr,_reg) \
-static ssize_t _attr##_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
-{ \
- int uvalue; struct client_data *cdata=dev_get_drvdata(dev); \
- if(kstrtoint(buf, 0,&uvalue)) \
- return -EINVAL; \
- if(ina260_write_register(cdata, (_reg), uvalue)) \
- return -1; \
- return count; \
-}
-
-
-#define HWMON_CHANNEL_INFO(stype, ...) \
- (&(struct hwmon_channel_info) { \
- .type = hwmon_##stype, \
- .config = (u32 []) { \
- __VA_ARGS__, 0 \
- } \
- })
-
-// ina260 average modes list
-static int ina260_avgs[8]={
- 1,4,16,64,128,256,512,1024
-};
-
-// ina260 operating modes list
-static char ina260_modes[8][42]={
- "Power-Down (or Shutdown)","Shunt Current, Triggered",
- "Bus Voltage, Triggered","Shunt Current and Bus Voltage, Triggered",
- "Power-Down (or Shutdown)","Shunt Current, Continuous","Bus Voltage, Continuous",
- "Shunt Current and Bus Voltage, Continuous"
-};
-
-// ina260 conversion times list
-static char ina260_ishcts_vbusct[8][9]={
- "140 µs", "204 µs","332 µs", "588 µs","1.1 ms", "2.116 ms","4.156 ms","8.244 ms"
-};
-
-
-// Data attached to i2c clients
-struct client_data {
- struct i2c_client *client;
- unsigned char reg; // Slave selected register
-};
-
-static const struct i2c_device_id ina260_ids[] = {
- { "ina260", 0 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c,ina260_ids);
-
-/**
- * @brief Read from ina260 registers
- *
- * @param cdata client data to use to communicate
- * @param reg register to read
- * @param value register content output
- * @return int 0 on success, 1 on communication errors
- */
-static int ina260_read_register(struct client_data* cdata, unsigned char reg, int *value){
- unsigned char bytes[2];
- if(cdata->reg == reg){
- if(i2c_master_recv(cdata->client,bytes,2)<0)
- return 1;
- } else {
- if(i2c_master_send(cdata->client,&reg,1)<0)
- return 1;
- cdata->reg = reg;
- if(i2c_master_recv(cdata->client,bytes,2)<0)
- return 1;
- }
- *value=(bytes[0]<<8) | bytes[1];
- return 0;
-}
-
-/**
- * @brief Write to ina260 registers
- *
- * @param cdata client data to use to communicate
- * @param reg register to write to
- * @param value value to write in @a reg
- * @return int 0 on success, 1 on communication errors
- */
-static int ina260_write_register(struct client_data* cdata, unsigned char reg, int value){
- unsigned char data[3];
- data[0]=reg;
- data[1]=(value>>8) & 0xFF; // MSB
- data[2]=value & 0xFF; // LSB
- if(i2c_master_send(cdata->client,data,3)<0)
- return 1;
- return 0;
-}
-
-
-static int ina260_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
- u32 attr, int channel, long *val)
-{
- int rvalue;
- struct client_data *cdata=dev_get_drvdata(dev);
- if(type == hwmon_power){
- if(ina260_read_register(cdata, INA260_REG_POWER,&rvalue))
- return -1;
- *val=10*rvalue*1000;
- } else if (type == hwmon_curr){
- if(ina260_read_register(cdata, INA260_REG_CURRENT,&rvalue))
- return -1;
- *val=((rvalue*25/100) + rvalue)*100+(rvalue*25%100);
- *val/=100;
- } else if (type == hwmon_in){
- if(ina260_read_register(cdata, INA260_REG_VOLTAGE,&rvalue))
- return -1;
-
- *val=((rvalue*25/100) + rvalue)*100+(rvalue*25%100);
- *val/=100;
- }
-
- return 0;
-}
-
-static int ina260_hwmon_write(struct device *dev, enum hwmon_sensor_types type,
- u32 attr, int channel, long val)
-{
- return 0;
-}
-
-INA260_REG_SHOW(configuration,INA260_REG_CONFIGURATION)
-INA260_REG_SHOW(current,INA260_REG_CURRENT)
-INA260_REG_SHOW(bus_voltage,INA260_REG_VOLTAGE)
-INA260_REG_SHOW(power,INA260_REG_POWER)
-INA260_REG_SHOW(mask_enable,INA260_REG_MASKENABLE)
-INA260_REG_SHOW(alert_limit,INA260_REG_ALERTLIMIT)
-INA260_REG_SHOW(manufacturer_id,INA260_REG_MANUFACTURER)
-INA260_REG_SHOW(die_id,INA260_REG_DIE)
-
-INA260_REG_STORE(configuration,INA260_REG_CONFIGURATION)
-INA260_REG_STORE(current,INA260_REG_CURRENT)
-INA260_REG_STORE(bus_voltage,INA260_REG_VOLTAGE)
-INA260_REG_STORE(power,INA260_REG_POWER)
-INA260_REG_STORE(mask_enable,INA260_REG_MASKENABLE)
-INA260_REG_STORE(alert_limit,INA260_REG_ALERTLIMIT)
-
-
-static umode_t ina260_hwmon_is_visible(const void *drvdata,
- enum hwmon_sensor_types type,
- u32 attr, int channel){
- return 0444;
- }
-static const struct hwmon_channel_info * ina260_hwmon_info[] = {
- HWMON_CHANNEL_INFO(in,HWMON_I_INPUT),
- HWMON_CHANNEL_INFO(power,HWMON_P_INPUT),
- HWMON_CHANNEL_INFO(curr,HWMON_C_INPUT),
- NULL
-};
-static const struct hwmon_ops ina260_hwmon_ops = {
- .is_visible = ina260_hwmon_is_visible,
- .read = ina260_hwmon_read,
- .write = ina260_hwmon_write,
-};
-
-static const struct hwmon_chip_info ina260_chip_info = {
- .ops = &ina260_hwmon_ops,
- .info = ina260_hwmon_info,
-};
-// ----- Registers -----
-static DEVICE_ATTR_RW(configuration);
-static DEVICE_ATTR_RW(current);
-static DEVICE_ATTR_RW(bus_voltage);
-static DEVICE_ATTR_RW(power);
-static DEVICE_ATTR_RW(mask_enable);
-static DEVICE_ATTR_RW(alert_limit);
-static DEVICE_ATTR_RO(manufacturer_id);
-static DEVICE_ATTR_RO(die_id);
-static struct attribute *registers_attrs[] = {
- &dev_attr_configuration.attr,
- &dev_attr_current.attr,
- &dev_attr_bus_voltage.attr,
- &dev_attr_power.attr,
- &dev_attr_mask_enable.attr,
- &dev_attr_alert_limit.attr,
- &dev_attr_manufacturer_id.attr,
- &dev_attr_die_id.attr,
- NULL,
-};
-static const struct attribute_group registers_group = {
- .attrs = registers_attrs,
- .name = "registers"
-};
-
-
-/**
- * @brief Compare on ina260 register to a supplied value
- *
- * @param client i2c client to use for communications
- * @param reg register to use for comparison
- * @param value register expected value
- * @return int 0 if register contains value and 1 otherwise
- */
-static int ina260_probe_register(struct i2c_client *client, unsigned char reg, int value){
- unsigned char bytes[2];
- if(i2c_master_send(client,&reg,1)<0)
- return 1;
- if(i2c_master_recv(client,bytes,2)<0)
- return 1;
- return ((bytes[0]<<8) | bytes[1])!=value;
-}
-
-const struct attribute_group *extra_groups[] = {
- &registers_group,
- NULL
-};
-
-static int ina260_probe_new(struct i2c_client *client){
- struct client_data *p;
- struct device *hwmon_dev;
-
- // Attempt device discovery:
- if(ina260_probe_register(client,INA260_REG_MANUFACTURER,0x5449) ||
- ina260_probe_register(client,INA260_REG_DIE,0x2270)){
- printk("ina260 probe fails bus=%d address=0x%02x\n",client->adapter->nr,client->addr);
- return 1;
- }
- // Initialize client data:
- printk("ina260 detected bus=%d address=0x%02x\n",client->adapter->nr,client->addr);
- p=kzalloc(sizeof(struct client_data),GFP_KERNEL);
- p->client=client;
- p->reg=INA260_REG_DIE; // Maintain cache coherence
-
- hwmon_dev=hwmon_device_register_with_info(&client->dev,client->name,p,
- &ina260_chip_info,extra_groups);
- if (IS_ERR(hwmon_dev))
- return PTR_ERR(hwmon_dev);
- return 0;
-}
-
-static int ina260_remove(struct i2c_client *client){
- struct client_data *p=i2c_get_clientdata(client);
- kfree(p);
- hwmon_device_unregister(&client->dev);
- printk("ina260 removed bus=%d address=0x%02x\n",client->adapter->nr,client->addr);
- return 0;
-}
-
-static struct i2c_driver ina260_driver = {
- .class = I2C_CLASS_HWMON,
- .driver = {
- .name = "ina260"
- },
- .probe_new = ina260_probe_new,
- .remove = ina260_remove,
- .id_table = ina260_ids
-};
-
-static int __init ina260_init(void){
- i2c_add_driver(&ina260_driver);
- return 0;
-}
-
-static void __exit ina260_exit(void){
- i2c_del_driver(&ina260_driver);
-}
-
-module_init(ina260_init);
-module_exit(ina260_exit);
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Loïc Guegan");
-MODULE_DESCRIPTION("INA260 Texas Instruments");
-MODULE_VERSION("1.0");
generated by cgit v1.2.3 (git 2.46.0) at 2026-04-15 22:38:56 +0000