diff options
Diffstat (limited to 'drivers/power')
-rw-r--r-- | drivers/power/Kconfig | 14 | ||||
-rw-r--r-- | drivers/power/Makefile | 1 | ||||
-rw-r--r-- | drivers/power/bq27x00_battery.c | 4 | ||||
-rw-r--r-- | drivers/power/ds2781_battery.c | 874 | ||||
-rw-r--r-- | drivers/power/isp1704_charger.c | 106 | ||||
-rw-r--r-- | drivers/power/pda_power.c | 10 | ||||
-rw-r--r-- | drivers/power/twl4030_charger.c | 20 |
7 files changed, 964 insertions, 65 deletions
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig index 3a8daf85874..459f66437fe 100644 --- a/drivers/power/Kconfig +++ b/drivers/power/Kconfig @@ -76,6 +76,20 @@ config BATTERY_DS2780 help Say Y here to enable support for batteries with ds2780 chip. +config BATTERY_DS2781 + tristate "2781 battery driver" + depends on HAS_IOMEM + select W1 + select W1_SLAVE_DS2781 + help + If you enable this you will have the DS2781 battery driver support. + + The battery monitor chip is used in many batteries/devices + as the one who is responsible for charging/discharging/monitoring + Li+ batteries. + + If you are unsure, say N. + config BATTERY_DS2782 tristate "DS2782/DS2786 standalone gas-gauge" depends on I2C diff --git a/drivers/power/Makefile b/drivers/power/Makefile index e429008eaf1..c590fa53340 100644 --- a/drivers/power/Makefile +++ b/drivers/power/Makefile @@ -16,6 +16,7 @@ obj-$(CONFIG_TEST_POWER) += test_power.o obj-$(CONFIG_BATTERY_DS2760) += ds2760_battery.o obj-$(CONFIG_BATTERY_DS2780) += ds2780_battery.o +obj-$(CONFIG_BATTERY_DS2781) += ds2781_battery.o obj-$(CONFIG_BATTERY_DS2782) += ds2782_battery.o obj-$(CONFIG_BATTERY_PMU) += pmu_battery.o obj-$(CONFIG_BATTERY_OLPC) += olpc_battery.o diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c index 1ed6ea0bad6..222ccd872ac 100644 --- a/drivers/power/bq27x00_battery.c +++ b/drivers/power/bq27x00_battery.c @@ -47,10 +47,10 @@ #define BQ27x00_REG_TTE 0x16 #define BQ27x00_REG_TTF 0x18 #define BQ27x00_REG_TTECP 0x26 -#define BQ27x00_REG_NAC 0x0C /* Nominal available capaciy */ +#define BQ27x00_REG_NAC 0x0C /* Nominal available capacity */ #define BQ27x00_REG_LMD 0x12 /* Last measured discharge */ #define BQ27x00_REG_CYCT 0x2A /* Cycle count total */ -#define BQ27x00_REG_AE 0x22 /* Available enery */ +#define BQ27x00_REG_AE 0x22 /* Available energy */ #define BQ27000_REG_RSOC 0x0B /* Relative State-of-Charge */ #define BQ27000_REG_ILMD 0x76 /* Initial last measured discharge */ diff --git a/drivers/power/ds2781_battery.c b/drivers/power/ds2781_battery.c new file mode 100644 index 00000000000..ca0d653d0a7 --- /dev/null +++ b/drivers/power/ds2781_battery.c @@ -0,0 +1,874 @@ +/* + * 1-wire client/driver for the Maxim/Dallas DS2781 Stand-Alone Fuel Gauge IC + * + * Author: Renata Sayakhova <renata@oktetlabs.ru> + * + * Based on ds2780_battery drivers + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/param.h> +#include <linux/pm.h> +#include <linux/platform_device.h> +#include <linux/power_supply.h> +#include <linux/idr.h> + +#include "../w1/w1.h" +#include "../w1/slaves/w1_ds2781.h" + +/* Current unit measurement in uA for a 1 milli-ohm sense resistor */ +#define DS2781_CURRENT_UNITS 1563 +/* Charge unit measurement in uAh for a 1 milli-ohm sense resistor */ +#define DS2781_CHARGE_UNITS 6250 +/* Number of bytes in user EEPROM space */ +#define DS2781_USER_EEPROM_SIZE (DS2781_EEPROM_BLOCK0_END - \ + DS2781_EEPROM_BLOCK0_START + 1) +/* Number of bytes in parameter EEPROM space */ +#define DS2781_PARAM_EEPROM_SIZE (DS2781_EEPROM_BLOCK1_END - \ + DS2781_EEPROM_BLOCK1_START + 1) + +struct ds2781_device_info { + struct device *dev; + struct power_supply bat; + struct device *w1_dev; + struct task_struct *mutex_holder; +}; + +enum current_types { + CURRENT_NOW, + CURRENT_AVG, +}; + +static const char model[] = "DS2781"; +static const char manufacturer[] = "Maxim/Dallas"; + +static inline struct ds2781_device_info * +to_ds2781_device_info(struct power_supply *psy) +{ + return container_of(psy, struct ds2781_device_info, bat); +} + +static inline struct power_supply *to_power_supply(struct device *dev) +{ + return dev_get_drvdata(dev); +} + +static inline int ds2781_battery_io(struct ds2781_device_info *dev_info, + char *buf, int addr, size_t count, int io) +{ + if (dev_info->mutex_holder == current) + return w1_ds2781_io_nolock(dev_info->w1_dev, buf, addr, + count, io); + else + return w1_ds2781_io(dev_info->w1_dev, buf, addr, count, io); +} + +int w1_ds2781_read(struct ds2781_device_info *dev_info, char *buf, + int addr, size_t count) +{ + return ds2781_battery_io(dev_info, buf, addr, count, 0); +} + +static inline int ds2781_read8(struct ds2781_device_info *dev_info, u8 *val, + int addr) +{ + return ds2781_battery_io(dev_info, val, addr, sizeof(u8), 0); +} + +static int ds2781_read16(struct ds2781_device_info *dev_info, s16 *val, + int addr) +{ + int ret; + u8 raw[2]; + + ret = ds2781_battery_io(dev_info, raw, addr, sizeof(raw), 0); + if (ret < 0) + return ret; + + *val = (raw[0] << 8) | raw[1]; + + return 0; +} + +static inline int ds2781_read_block(struct ds2781_device_info *dev_info, + u8 *val, int addr, size_t count) +{ + return ds2781_battery_io(dev_info, val, addr, count, 0); +} + +static inline int ds2781_write(struct ds2781_device_info *dev_info, u8 *val, + int addr, size_t count) +{ + return ds2781_battery_io(dev_info, val, addr, count, 1); +} + +static inline int ds2781_store_eeprom(struct device *dev, int addr) +{ + return w1_ds2781_eeprom_cmd(dev, addr, W1_DS2781_COPY_DATA); +} + +static inline int ds2781_recall_eeprom(struct device *dev, int addr) +{ + return w1_ds2781_eeprom_cmd(dev, addr, W1_DS2781_RECALL_DATA); +} + +static int ds2781_save_eeprom(struct ds2781_device_info *dev_info, int reg) +{ + int ret; + + ret = ds2781_store_eeprom(dev_info->w1_dev, reg); + if (ret < 0) + return ret; + + ret = ds2781_recall_eeprom(dev_info->w1_dev, reg); + if (ret < 0) + return ret; + + return 0; +} + +/* Set sense resistor value in mhos */ +static int ds2781_set_sense_register(struct ds2781_device_info *dev_info, + u8 conductance) +{ + int ret; + + ret = ds2781_write(dev_info, &conductance, + DS2781_RSNSP, sizeof(u8)); + if (ret < 0) + return ret; + + return ds2781_save_eeprom(dev_info, DS2781_RSNSP); +} + +/* Get RSGAIN value from 0 to 1.999 in steps of 0.001 */ +static int ds2781_get_rsgain_register(struct ds2781_device_info *dev_info, + u16 *rsgain) +{ + return ds2781_read16(dev_info, rsgain, DS2781_RSGAIN_MSB); +} + +/* Set RSGAIN value from 0 to 1.999 in steps of 0.001 */ +static int ds2781_set_rsgain_register(struct ds2781_device_info *dev_info, + u16 rsgain) +{ + int ret; + u8 raw[] = {rsgain >> 8, rsgain & 0xFF}; + + ret = ds2781_write(dev_info, raw, + DS2781_RSGAIN_MSB, sizeof(raw)); + if (ret < 0) + return ret; + + return ds2781_save_eeprom(dev_info, DS2781_RSGAIN_MSB); +} + +static int ds2781_get_voltage(struct ds2781_device_info *dev_info, + int *voltage_uV) +{ + int ret; + char val[2]; + int voltage_raw; + + ret = w1_ds2781_read(dev_info, val, DS2781_VOLT_MSB, 2 * sizeof(u8)); + if (ret < 0) + return ret; + /* + * The voltage value is located in 10 bits across the voltage MSB + * and LSB registers in two's compliment form + * Sign bit of the voltage value is in bit 7 of the voltage MSB register + * Bits 9 - 3 of the voltage value are in bits 6 - 0 of the + * voltage MSB register + * Bits 2 - 0 of the voltage value are in bits 7 - 5 of the + * voltage LSB register + */ + voltage_raw = (val[0] << 3) | + (val[1] >> 5); + + /* DS2781 reports voltage in units of 9.76mV, but the battery class + * reports in units of uV, so convert by multiplying by 9760. */ + *voltage_uV = voltage_raw * 9760; + + return 0; +} + +static int ds2781_get_temperature(struct ds2781_device_info *dev_info, + int *temp) +{ + int ret; + char val[2]; + int temp_raw; + + ret = w1_ds2781_read(dev_info, val, DS2781_TEMP_MSB, 2 * sizeof(u8)); + if (ret < 0) + return ret; + /* + * The temperature value is located in 10 bits across the temperature + * MSB and LSB registers in two's compliment form + * Sign bit of the temperature value is in bit 7 of the temperature + * MSB register + * Bits 9 - 3 of the temperature value are in bits 6 - 0 of the + * temperature MSB register + * Bits 2 - 0 of the temperature value are in bits 7 - 5 of the + * temperature LSB register + */ + temp_raw = ((val[0]) << 3) | + (val[1] >> 5); + *temp = temp_raw + (temp_raw / 4); + + return 0; +} + +static int ds2781_get_current(struct ds2781_device_info *dev_info, + enum current_types type, int *current_uA) +{ + int ret, sense_res; + s16 current_raw; + u8 sense_res_raw, reg_msb; + + /* + * The units of measurement for current are dependent on the value of + * the sense resistor. + */ + ret = ds2781_read8(dev_info, &sense_res_raw, DS2781_RSNSP); + if (ret < 0) + return ret; + + if (sense_res_raw == 0) { + dev_err(dev_info->dev, "sense resistor value is 0\n"); + return -EINVAL; + } + sense_res = 1000 / sense_res_raw; + + if (type == CURRENT_NOW) + reg_msb = DS2781_CURRENT_MSB; + else if (type == CURRENT_AVG) + reg_msb = DS2781_IAVG_MSB; + else + return -EINVAL; + + /* + * The current value is located in 16 bits across the current MSB + * and LSB registers in two's compliment form + * Sign bit of the current value is in bit 7 of the current MSB register + * Bits 14 - 8 of the current value are in bits 6 - 0 of the current + * MSB register + * Bits 7 - 0 of the current value are in bits 7 - 0 of the current + * LSB register + */ + ret = ds2781_read16(dev_info, ¤t_raw, reg_msb); + if (ret < 0) + return ret; + + *current_uA = current_raw * (DS2781_CURRENT_UNITS / sense_res); + return 0; +} + +static int ds2781_get_accumulated_current(struct ds2781_device_info *dev_info, + int *accumulated_current) +{ + int ret, sense_res; + s16 current_raw; + u8 sense_res_raw; + + /* + * The units of measurement for accumulated current are dependent on + * the value of the sense resistor. + */ + ret = ds2781_read8(dev_info, &sense_res_raw, DS2781_RSNSP); + if (ret < 0) + return ret; + + if (sense_res_raw == 0) { + dev_err(dev_info->dev, "sense resistor value is 0\n"); + return -EINVAL; + } + sense_res = 1000 / sense_res_raw; + + /* + * The ACR value is located in 16 bits across the ACR MSB and + * LSB registers + * Bits 15 - 8 of the ACR value are in bits 7 - 0 of the ACR + * MSB register + * Bits 7 - 0 of the ACR value are in bits 7 - 0 of the ACR + * LSB register + */ + ret = ds2781_read16(dev_info, ¤t_raw, DS2781_ACR_MSB); + if (ret < 0) + return ret; + + *accumulated_current = current_raw * (DS2781_CHARGE_UNITS / sense_res); + return 0; +} + +static int ds2781_get_capacity(struct ds2781_device_info *dev_info, + int *capacity) +{ + int ret; + u8 raw; + + ret = ds2781_read8(dev_info, &raw, DS2781_RARC); + if (ret < 0) + return ret; + + *capacity = raw; + return 0; +} + +static int ds2781_get_status(struct ds2781_device_info *dev_info, int *status) +{ + int ret, current_uA, capacity; + + ret = ds2781_get_current(dev_info, CURRENT_NOW, ¤t_uA); + if (ret < 0) + return ret; + + ret = ds2781_get_capacity(dev_info, &capacity); + if (ret < 0) + return ret; + + if (power_supply_am_i_supplied(&dev_info->bat)) { + if (capacity == 100) + *status = POWER_SUPPLY_STATUS_FULL; + else if (current_uA > 50000) + *status = POWER_SUPPLY_STATUS_CHARGING; + else + *status = POWER_SUPPLY_STATUS_NOT_CHARGING; + } else { + *status = POWER_SUPPLY_STATUS_DISCHARGING; + } + return 0; +} + +static int ds2781_get_charge_now(struct ds2781_device_info *dev_info, + int *charge_now) +{ + int ret; + u16 charge_raw; + + /* + * The RAAC value is located in 16 bits across the RAAC MSB and + * LSB registers + * Bits 15 - 8 of the RAAC value are in bits 7 - 0 of the RAAC + * MSB register + * Bits 7 - 0 of the RAAC value are in bits 7 - 0 of the RAAC + * LSB register + */ + ret = ds2781_read16(dev_info, &charge_raw, DS2781_RAAC_MSB); + if (ret < 0) + return ret; + + *charge_now = charge_raw * 1600; + return 0; +} + +static int ds2781_get_control_register(struct ds2781_device_info *dev_info, + u8 *control_reg) +{ + return ds2781_read8(dev_info, control_reg, DS2781_CONTROL); +} + +static int ds2781_set_control_register(struct ds2781_device_info *dev_info, + u8 control_reg) +{ + int ret; + + ret = ds2781_write(dev_info, &control_reg, + DS2781_CONTROL, sizeof(u8)); + if (ret < 0) + return ret; + + return ds2781_save_eeprom(dev_info, DS2781_CONTROL); +} + +static int ds2781_battery_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + int ret = 0; + struct ds2781_device_info *dev_info = to_ds2781_device_info(psy); + + switch (psp) { + case POWER_SUPPLY_PROP_VOLTAGE_NOW: + ret = ds2781_get_voltage(dev_info, &val->intval); + break; + + case POWER_SUPPLY_PROP_TEMP: + ret = ds2781_get_temperature(dev_info, &val->intval); + break; + + case POWER_SUPPLY_PROP_MODEL_NAME: + val->strval = model; + break; + + case POWER_SUPPLY_PROP_MANUFACTURER: + val->strval = manufacturer; + break; + + case POWER_SUPPLY_PROP_CURRENT_NOW: + ret = ds2781_get_current(dev_info, CURRENT_NOW, &val->intval); + break; + + case POWER_SUPPLY_PROP_CURRENT_AVG: + ret = ds2781_get_current(dev_info, CURRENT_AVG, &val->intval); + break; + + case POWER_SUPPLY_PROP_STATUS: + ret = ds2781_get_status(dev_info, &val->intval); + break; + + case POWER_SUPPLY_PROP_CAPACITY: + ret = ds2781_get_capacity(dev_info, &val->intval); + break; + + case POWER_SUPPLY_PROP_CHARGE_COUNTER: + ret = ds2781_get_accumulated_current(dev_info, &val->intval); + break; + + case POWER_SUPPLY_PROP_CHARGE_NOW: + ret = ds2781_get_charge_now(dev_info, &val->intval); + break; + + default: + ret = -EINVAL; + } + + return ret; +} + +static enum power_supply_property ds2781_battery_props[] = { + POWER_SUPPLY_PROP_STATUS, + POWER_SUPPLY_PROP_VOLTAGE_NOW, + POWER_SUPPLY_PROP_TEMP, + POWER_SUPPLY_PROP_MODEL_NAME, + POWER_SUPPLY_PROP_MANUFACTURER, + POWER_SUPPLY_PROP_CURRENT_NOW, + POWER_SUPPLY_PROP_CURRENT_AVG, + POWER_SUPPLY_PROP_CAPACITY, + POWER_SUPPLY_PROP_CHARGE_COUNTER, + POWER_SUPPLY_PROP_CHARGE_NOW, +}; + +static ssize_t ds2781_get_pmod_enabled(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int ret; + u8 control_reg; + struct power_supply *psy = to_power_supply(dev); + struct ds2781_device_info *dev_info = to_ds2781_device_info(psy); + + /* Get power mode */ + ret = ds2781_get_control_register(dev_info, &control_reg); + if (ret < 0) + return ret; + + return sprintf(buf, "%d\n", + !!(control_reg & DS2781_CONTROL_PMOD)); +} + +static ssize_t ds2781_set_pmod_enabled(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + int ret; + u8 control_reg, new_setting; + struct power_supply *psy = to_power_supply(dev); + struct ds2781_device_info *dev_info = to_ds2781_device_info(psy); + + /* Set power mode */ + ret = ds2781_get_control_register(dev_info, &control_reg); + if (ret < 0) + return ret; + + ret = kstrtou8(buf, 0, &new_setting); + if (ret < 0) + return ret; + + if ((new_setting != 0) && (new_setting != 1)) { + dev_err(dev_info->dev, "Invalid pmod setting (0 or 1)\n"); + return -EINVAL; + } + + if (new_setting) + control_reg |= DS2781_CONTROL_PMOD; + else + control_reg &= ~DS2781_CONTROL_PMOD; + + ret = ds2781_set_control_register(dev_info, control_reg); + if (ret < 0) + return ret; + + return count; +} + +static ssize_t ds2781_get_sense_resistor_value(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int ret; + u8 sense_resistor; + struct power_supply *psy = to_power_supply(dev); + struct ds2781_device_info *dev_info = to_ds2781_device_info(psy); + + ret = ds2781_read8(dev_info, &sense_resistor, DS2781_RSNSP); + if (ret < 0) + return ret; + + ret = sprintf(buf, "%d\n", sense_resistor); + return ret; +} + +static ssize_t ds2781_set_sense_resistor_value(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + int ret; + u8 new_setting; + struct power_supply *psy = to_power_supply(dev); + struct ds2781_device_info *dev_info = to_ds2781_device_info(psy); + + ret = kstrtou8(buf, 0, &new_setting); + if (ret < 0) + return ret; + + ret = ds2781_set_sense_register(dev_info, new_setting); + if (ret < 0) + return ret; + + return count; +} + +static ssize_t ds2781_get_rsgain_setting(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int ret; + u16 rsgain; + struct power_supply *psy = to_power_supply(dev); + struct ds2781_device_info *dev_info = to_ds2781_device_info(psy); + + ret = ds2781_get_rsgain_register(dev_info, &rsgain); + if (ret < 0) + return ret; + + return sprintf(buf, "%d\n", rsgain); +} + +static ssize_t ds2781_set_rsgain_setting(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + int ret; + u16 new_setting; + struct power_supply *psy = to_power_supply(dev); + struct ds2781_device_info *dev_info = to_ds2781_device_info(psy); + + ret = kstrtou16(buf, 0, &new_setting); + if (ret < 0) + return ret; + + /* Gain can only be from 0 to 1.999 in steps of .001 */ + if (new_setting > 1999) { + dev_err(dev_info->dev, "Invalid rsgain setting (0 - 1999)\n"); + return -EINVAL; + } + + ret = ds2781_set_rsgain_register(dev_info, new_setting); + if (ret < 0) + return ret; + + return count; +} + +static ssize_t ds2781_get_pio_pin(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int ret; + u8 sfr; + struct power_supply *psy = to_power_supply(dev); + struct ds2781_device_info *dev_info = to_ds2781_device_info(psy); + + ret = ds2781_read8(dev_info, &sfr, DS2781_SFR); + if (ret < 0) + return ret; + + ret = sprintf(buf, "%d\n", sfr & DS2781_SFR_PIOSC); + return ret; +} + +static ssize_t ds2781_set_pio_pin(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + int ret; + u8 new_setting; + struct power_supply *psy = to_power_supply(dev); + struct ds2781_device_info *dev_info = to_ds2781_device_info(psy); + + ret = kstrtou8(buf, 0, &new_setting); + if (ret < 0) + return ret; + + if ((new_setting != 0) && (new_setting != 1)) { + dev_err(dev_info->dev, "Invalid pio_pin setting (0 or 1)\n"); + return -EINVAL; + } + + ret = ds2781_write(dev_info, &new_setting, + DS2781_SFR, sizeof(u8)); + if (ret < 0) + return ret; + + return count; +} + +static ssize_t ds2781_read_param_eeprom_bin(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); + struct power_supply *psy = to_power_supply(dev); + struct ds2781_device_info *dev_info = to_ds2781_device_info(psy); + + count = min_t(loff_t, count, + DS2781_EEPROM_BLOCK1_END - + DS2781_EEPROM_BLOCK1_START + 1 - off); + + return ds2781_read_block(dev_info, buf, + DS2781_EEPROM_BLOCK1_START + off, count); +} + +static ssize_t ds2781_write_param_eeprom_bin(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); + struct power_supply *psy = to_power_supply(dev); + struct ds2781_device_info *dev_info = to_ds2781_device_info(psy); + int ret; + + count = min_t(loff_t, count, + DS2781_EEPROM_BLOCK1_END - + DS2781_EEPROM_BLOCK1_START + 1 - off); + + ret = ds2781_write(dev_info, buf, + DS2781_EEPROM_BLOCK1_START + off, count); + if (ret < 0) + return ret; + + ret = ds2781_save_eeprom(dev_info, DS2781_EEPROM_BLOCK1_START); + if (ret < 0) + return ret; + + return count; +} + +static struct bin_attribute ds2781_param_eeprom_bin_attr = { + .attr = { + .name = "param_eeprom", + .mode = S_IRUGO | S_IWUSR, + }, + .size = DS2781_EEPROM_BLOCK1_END - DS2781_EEPROM_BLOCK1_START + 1, + .read = ds2781_read_param_eeprom_bin, + .write = ds2781_write_param_eeprom_bin, +}; + +static ssize_t ds2781_read_user_eeprom_bin(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); + struct power_supply *psy = to_power_supply(dev); + struct ds2781_device_info *dev_info = to_ds2781_device_info(psy); + + count = min_t(loff_t, count, + DS2781_EEPROM_BLOCK0_END - + DS2781_EEPROM_BLOCK0_START + 1 - off); + + return ds2781_read_block(dev_info, buf, + DS2781_EEPROM_BLOCK0_START + off, count); + +} + +static ssize_t ds2781_write_user_eeprom_bin(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); + struct power_supply *psy = to_power_supply(dev); + struct ds2781_device_info *dev_info = to_ds2781_device_info(psy); + int ret; + + count = min_t(loff_t, count, + DS2781_EEPROM_BLOCK0_END - + DS2781_EEPROM_BLOCK0_START + 1 - off); + + ret = ds2781_write(dev_info, buf, + DS2781_EEPROM_BLOCK0_START + off, count); + if (ret < 0) + return ret; + + ret = ds2781_save_eeprom(dev_info, DS2781_EEPROM_BLOCK0_START); + if (ret < 0) + return ret; + + return count; +} + +static struct bin_attribute ds2781_user_eeprom_bin_attr = { + .attr = { + .name = "user_eeprom", + .mode = S_IRUGO | S_IWUSR, + }, + .size = DS2781_EEPROM_BLOCK0_END - DS2781_EEPROM_BLOCK0_START + 1, + .read = ds2781_read_user_eeprom_bin, + .write = ds2781_write_user_eeprom_bin, +}; + +static DEVICE_ATTR(pmod_enabled, S_IRUGO | S_IWUSR, ds2781_get_pmod_enabled, + ds2781_set_pmod_enabled); +static DEVICE_ATTR(sense_resistor_value, S_IRUGO | S_IWUSR, + ds2781_get_sense_resistor_value, ds2781_set_sense_resistor_value); +static DEVICE_ATTR(rsgain_setting, S_IRUGO | S_IWUSR, ds2781_get_rsgain_setting, + ds2781_set_rsgain_setting); +static DEVICE_ATTR(pio_pin, S_IRUGO | S_IWUSR, ds2781_get_pio_pin, + ds2781_set_pio_pin); + + +static struct attribute *ds2781_attributes[] = { + &dev_attr_pmod_enabled.attr, + &dev_attr_sense_resistor_value.attr, + &dev_attr_rsgain_setting.attr, + &dev_attr_pio_pin.attr, + NULL +}; + +static const struct attribute_group ds2781_attr_group = { + .attrs = ds2781_attributes, +}; + +static int __devinit ds2781_battery_probe(struct platform_device *pdev) +{ + int ret = 0; + struct ds2781_device_info *dev_info; + + dev_info = kzalloc(sizeof(*dev_info), GFP_KERNEL); + if (!dev_info) { + ret = -ENOMEM; + goto fail; + } + + platform_set_drvdata(pdev, dev_info); + + dev_info->dev = &pdev->dev; + dev_info->w1_dev = pdev->dev.parent; + dev_info->bat.name = dev_name(&pdev->dev); + dev_info->bat.type = POWER_SUPPLY_TYPE_BATTERY; + dev_info->bat.properties = ds2781_battery_props; + dev_info->bat.num_properties = ARRAY_SIZE(ds2781_battery_props); + dev_info->bat.get_property = ds2781_battery_get_property; + dev_info->mutex_holder = current; + + ret = power_supply_register(&pdev->dev, &dev_info->bat); + if (ret) { + dev_err(dev_info->dev, "failed to register battery\n"); + goto fail_free_info; + } + + ret = sysfs_create_group(&dev_info->bat.dev->kobj, &ds2781_attr_group); + if (ret) { + dev_err(dev_info->dev, "failed to create sysfs group\n"); + goto fail_unregister; + } + + ret = sysfs_create_bin_file(&dev_info->bat.dev->kobj, + &ds2781_param_eeprom_bin_attr); + if (ret) { + dev_err(dev_info->dev, + "failed to create param eeprom bin file"); + goto fail_remove_group; + } + + ret = sysfs_create_bin_file(&dev_info->bat.dev->kobj, + &ds2781_user_eeprom_bin_attr); + if (ret) { + dev_err(dev_info->dev, + "failed to create user eeprom bin file"); + goto fail_remove_bin_file; + } + + dev_info->mutex_holder = NULL; + + return 0; + +fail_remove_bin_file: + sysfs_remove_bin_file(&dev_info->bat.dev->kobj, + &ds2781_param_eeprom_bin_attr); +fail_remove_group: + sysfs_remove_group(&dev_info->bat.dev->kobj, &ds2781_attr_group); +fail_unregister: + power_supply_unregister(&dev_info->bat); +fail_free_info: + kfree(dev_info); +fail: + return ret; +} + +static int __devexit ds2781_battery_remove(struct platform_device *pdev) +{ + struct ds2781_device_info *dev_info = platform_get_drvdata(pdev); + + dev_info->mutex_holder = current; + + /* remove attributes */ + sysfs_remove_group(&dev_info->bat.dev->kobj, &ds2781_attr_group); + + power_supply_unregister(&dev_info->bat); + + kfree(dev_info); + return 0; +} + +static struct platform_driver ds2781_battery_driver = { + .driver = { + .name = "ds2781-battery", + }, + .probe = ds2781_battery_probe, + .remove = __devexit_p(ds2781_battery_remove), +}; + +static int __init ds2781_battery_init(void) +{ + return platform_driver_register(&ds2781_battery_driver); +} + +static void __exit ds2781_battery_exit(void) +{ + platform_driver_unregister(&ds2781_battery_driver); +} + +module_init(ds2781_battery_init); +module_exit(ds2781_battery_exit); + + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Renata Sayakhova <renata@oktetlabs.ru>"); +MODULE_DESCRIPTION("Maxim/Dallas DS2781 Stand-Alone Fuel Gauage IC driver"); +MODULE_ALIAS("platform:ds2781-battery"); + diff --git a/drivers/power/isp1704_charger.c b/drivers/power/isp1704_charger.c index b806667b59a..1289a5f790a 100644 --- a/drivers/power/isp1704_charger.c +++ b/drivers/power/isp1704_charger.c @@ -56,7 +56,7 @@ static u16 isp170x_id[] = { struct isp1704_charger { struct device *dev; struct power_supply psy; - struct otg_transceiver *otg; + struct usb_phy *phy; struct notifier_block nb; struct work_struct work; @@ -71,6 +71,16 @@ struct isp1704_charger { unsigned max_power; }; +static inline int isp1704_read(struct isp1704_charger *isp, u32 reg) +{ + return usb_phy_io_read(isp->phy, reg); +} + +static inline int isp1704_write(struct isp1704_charger *isp, u32 val, u32 reg) +{ + return usb_phy_io_write(isp->phy, val, reg); +} + /* * Disable/enable the power from the isp1704 if a function for it * has been provided with platform data. @@ -97,31 +107,31 @@ static inline int isp1704_charger_type(struct isp1704_charger *isp) u8 otg_ctrl; int type = POWER_SUPPLY_TYPE_USB_DCP; - func_ctrl = otg_io_read(isp->otg, ULPI_FUNC_CTRL); - otg_ctrl = otg_io_read(isp->otg, ULPI_OTG_CTRL); + func_ctrl = isp1704_read(isp, ULPI_FUNC_CTRL); + otg_ctrl = isp1704_read(isp, ULPI_OTG_CTRL); /* disable pulldowns */ reg = ULPI_OTG_CTRL_DM_PULLDOWN | ULPI_OTG_CTRL_DP_PULLDOWN; - otg_io_write(isp->otg, ULPI_CLR(ULPI_OTG_CTRL), reg); + isp1704_write(isp, ULPI_CLR(ULPI_OTG_CTRL), reg); /* full speed */ - otg_io_write(isp->otg, ULPI_CLR(ULPI_FUNC_CTRL), + isp1704_write(isp, ULPI_CLR(ULPI_FUNC_CTRL), ULPI_FUNC_CTRL_XCVRSEL_MASK); - otg_io_write(isp->otg, ULPI_SET(ULPI_FUNC_CTRL), + isp1704_write(isp, ULPI_SET(ULPI_FUNC_CTRL), ULPI_FUNC_CTRL_FULL_SPEED); /* Enable strong pull-up on DP (1.5K) and reset */ reg = ULPI_FUNC_CTRL_TERMSELECT | ULPI_FUNC_CTRL_RESET; - otg_io_write(isp->otg, ULPI_SET(ULPI_FUNC_CTRL), reg); + isp1704_write(isp, ULPI_SET(ULPI_FUNC_CTRL), reg); usleep_range(1000, 2000); - reg = otg_io_read(isp->otg, ULPI_DEBUG); + reg = isp1704_read(isp, ULPI_DEBUG); if ((reg & 3) != 3) type = POWER_SUPPLY_TYPE_USB_CDP; /* recover original state */ - otg_io_write(isp->otg, ULPI_FUNC_CTRL, func_ctrl); - otg_io_write(isp->otg, ULPI_OTG_CTRL, otg_ctrl); + isp1704_write(isp, ULPI_FUNC_CTRL, func_ctrl); + isp1704_write(isp, ULPI_OTG_CTRL, otg_ctrl); return type; } @@ -136,28 +146,28 @@ static inline int isp1704_charger_verify(struct isp1704_charger *isp) u8 r; /* Reset the transceiver */ - r = otg_io_read(isp->otg, ULPI_FUNC_CTRL); + r = isp1704_read(isp, ULPI_FUNC_CTRL); r |= ULPI_FUNC_CTRL_RESET; - otg_io_write(isp->otg, ULPI_FUNC_CTRL, r); + isp1704_write(isp, ULPI_FUNC_CTRL, r); usleep_range(1000, 2000); /* Set normal mode */ r &= ~(ULPI_FUNC_CTRL_RESET | ULPI_FUNC_CTRL_OPMODE_MASK); - otg_io_write(isp->otg, ULPI_FUNC_CTRL, r); + isp1704_write(isp, ULPI_FUNC_CTRL, r); /* Clear the DP and DM pull-down bits */ r = ULPI_OTG_CTRL_DP_PULLDOWN | ULPI_OTG_CTRL_DM_PULLDOWN; - otg_io_write(isp->otg, ULPI_CLR(ULPI_OTG_CTRL), r); + isp1704_write(isp, ULPI_CLR(ULPI_OTG_CTRL), r); /* Enable strong pull-up on DP (1.5K) and reset */ r = ULPI_FUNC_CTRL_TERMSELECT | ULPI_FUNC_CTRL_RESET; - otg_io_write(isp->otg, ULPI_SET(ULPI_FUNC_CTRL), r); + isp1704_write(isp, ULPI_SET(ULPI_FUNC_CTRL), r); usleep_range(1000, 2000); /* Read the line state */ - if (!otg_io_read(isp->otg, ULPI_DEBUG)) { + if (!isp1704_read(isp, ULPI_DEBUG)) { /* Disable strong pull-up on DP (1.5K) */ - otg_io_write(isp->otg, ULPI_CLR(ULPI_FUNC_CTRL), + isp1704_write(isp, ULPI_CLR(ULPI_FUNC_CTRL), ULPI_FUNC_CTRL_TERMSELECT); return 1; } @@ -165,23 +175,23 @@ static inline int isp1704_charger_verify(struct isp1704_charger *isp) /* Is it a charger or PS/2 connection */ /* Enable weak pull-up resistor on DP */ - otg_io_write(isp->otg, ULPI_SET(ISP1704_PWR_CTRL), + isp1704_write(isp, ULPI_SET(ISP1704_PWR_CTRL), ISP1704_PWR_CTRL_DP_WKPU_EN); /* Disable strong pull-up on DP (1.5K) */ - otg_io_write(isp->otg, ULPI_CLR(ULPI_FUNC_CTRL), + isp1704_write(isp, ULPI_CLR(ULPI_FUNC_CTRL), ULPI_FUNC_CTRL_TERMSELECT); /* Enable weak pull-down resistor on DM */ - otg_io_write(isp->otg, ULPI_SET(ULPI_OTG_CTRL), + isp1704_write(isp, ULPI_SET(ULPI_OTG_CTRL), ULPI_OTG_CTRL_DM_PULLDOWN); /* It's a charger if the line states are clear */ - if (!(otg_io_read(isp->otg, ULPI_DEBUG))) + if (!(isp1704_read(isp, ULPI_DEBUG))) ret = 1; /* Disable weak pull-up resistor on DP */ - otg_io_write(isp->otg, ULPI_CLR(ISP1704_PWR_CTRL), + isp1704_write(isp, ULPI_CLR(ISP1704_PWR_CTRL), ISP1704_PWR_CTRL_DP_WKPU_EN); return ret; @@ -193,14 +203,14 @@ static inline int isp1704_charger_detect(struct isp1704_charger *isp) u8 pwr_ctrl; int ret = 0; - pwr_ctrl = otg_io_read(isp->otg, ISP1704_PWR_CTRL); + pwr_ctrl = isp1704_read(isp, ISP1704_PWR_CTRL); /* set SW control bit in PWR_CTRL register */ - otg_io_write(isp->otg, ISP1704_PWR_CTRL, + isp1704_write(isp, ISP1704_PWR_CTRL, ISP1704_PWR_CTRL_SWCTRL); /* enable manual charger detection */ - otg_io_write(isp->otg, ULPI_SET(ISP1704_PWR_CTRL), + isp1704_write(isp, ULPI_SET(ISP1704_PWR_CTRL), ISP1704_PWR_CTRL_SWCTRL | ISP1704_PWR_CTRL_DPVSRC_EN); usleep_range(1000, 2000); @@ -208,7 +218,7 @@ static inline int isp1704_charger_detect(struct isp1704_charger *isp) timeout = jiffies + msecs_to_jiffies(300); do { /* Check if there is a charger */ - if (otg_io_read(isp->otg, ISP1704_PWR_CTRL) + if (isp1704_read(isp, ISP1704_PWR_CTRL) & ISP1704_PWR_CTRL_VDAT_DET) { ret = isp1704_charger_verify(isp); break; @@ -216,7 +226,7 @@ static inline int isp1704_charger_detect(struct isp1704_charger *isp) } while (!time_after(jiffies, timeout) && isp->online); /* recover original state */ - otg_io_write(isp->otg, ISP1704_PWR_CTRL, pwr_ctrl); + isp1704_write(isp, ISP1704_PWR_CTRL, pwr_ctrl); return ret; } @@ -264,8 +274,8 @@ static void isp1704_charger_work(struct work_struct *data) case POWER_SUPPLY_TYPE_USB: default: /* enable data pullups */ - if (isp->otg->gadget) - usb_gadget_connect(isp->otg->gadget); + if (isp->phy->otg->gadget) + usb_gadget_connect(isp->phy->otg->gadget); } break; case USB_EVENT_NONE: @@ -283,8 +293,8 @@ static void isp1704_charger_work(struct work_struct *data) * chargers. The pullups may be enabled elsewhere, so this can * not be the final solution. */ - if (isp->otg->gadget) - usb_gadget_disconnect(isp->otg->gadget); + if (isp->phy->otg->gadget) + usb_gadget_disconnect(isp->phy->otg->gadget); isp1704_charger_set_power(isp, 0); break; @@ -364,11 +374,11 @@ static inline int isp1704_test_ulpi(struct isp1704_charger *isp) int ret = -ENODEV; /* Test ULPI interface */ - ret = otg_io_write(isp->otg, ULPI_SCRATCH, 0xaa); + ret = isp1704_write(isp, ULPI_SCRATCH, 0xaa); if (ret < 0) return ret; - ret = otg_io_read(isp->otg, ULPI_SCRATCH); + ret = isp1704_read(isp, ULPI_SCRATCH); if (ret < 0) return ret; @@ -376,13 +386,13 @@ static inline int isp1704_test_ulpi(struct isp1704_charger *isp) return -ENODEV; /* Verify the product and vendor id matches */ - vendor = otg_io_read(isp->otg, ULPI_VENDOR_ID_LOW); - vendor |= otg_io_read(isp->otg, ULPI_VENDOR_ID_HIGH) << 8; + vendor = isp1704_read(isp, ULPI_VENDOR_ID_LOW); + vendor |= isp1704_read(isp, ULPI_VENDOR_ID_HIGH) << 8; if (vendor != NXP_VENDOR_ID) return -ENODEV; - product = otg_io_read(isp->otg, ULPI_PRODUCT_ID_LOW); - product |= otg_io_read(isp->otg, ULPI_PRODUCT_ID_HIGH) << 8; + product = isp1704_read(isp, ULPI_PRODUCT_ID_LOW); + product |= isp1704_read(isp, ULPI_PRODUCT_ID_HIGH) << 8; for (i = 0; i < ARRAY_SIZE(isp170x_id); i++) { if (product == isp170x_id[i]) { @@ -405,8 +415,8 @@ static int __devinit isp1704_charger_probe(struct platform_device *pdev) if (!isp) return -ENOMEM; - isp->otg = otg_get_transceiver(); - if (!isp->otg) + isp->phy = usb_get_transceiver(); + if (!isp->phy) goto fail0; isp->dev = &pdev->dev; @@ -429,14 +439,14 @@ static int __devinit isp1704_charger_probe(struct platform_device *pdev) goto fail1; /* - * REVISIT: using work in order to allow the otg notifications to be + * REVISIT: using work in order to allow the usb notifications to be * made atomically in the future. */ INIT_WORK(&isp->work, isp1704_charger_work); isp->nb.notifier_call = isp1704_notifier_call; - ret = otg_register_notifier(isp->otg, &isp->nb); + ret = usb_register_notifier(isp->phy, &isp->nb); if (ret) goto fail2; @@ -449,13 +459,13 @@ static int __devinit isp1704_charger_probe(struct platform_device *pdev) * enumerated. The charger driver should be always loaded before any * gadget is loaded. */ - if (isp->otg->gadget) - usb_gadget_disconnect(isp->otg->gadget); + if (isp->phy->otg->gadget) + usb_gadget_disconnect(isp->phy->otg->gadget); /* Detect charger if VBUS is valid (the cable was already plugged). */ - ret = otg_io_read(isp->otg, ULPI_USB_INT_STS); + ret = isp1704_read(isp, ULPI_USB_INT_STS); isp1704_charger_set_power(isp, 0); - if ((ret & ULPI_INT_VBUS_VALID) && !isp->otg->default_a) { + if ((ret & ULPI_INT_VBUS_VALID) && !isp->phy->otg->default_a) { isp->event = USB_EVENT_VBUS; schedule_work(&isp->work); } @@ -464,7 +474,7 @@ static int __devinit isp1704_charger_probe(struct platform_device *pdev) fail2: power_supply_unregister(&isp->psy); fail1: - otg_put_transceiver(isp->otg); + usb_put_transceiver(isp->phy); fail0: kfree(isp); @@ -477,9 +487,9 @@ static int __devexit isp1704_charger_remove(struct platform_device *pdev) { struct isp1704_charger *isp = platform_get_drvdata(pdev); - otg_unregister_notifier(isp->otg, &isp->nb); + usb_unregister_notifier(isp->phy, &isp->nb); power_supply_unregister(&isp->psy); - otg_put_transceiver(isp->otg); + usb_put_transceiver(isp->phy); isp1704_charger_set_power(isp, 0); kfree(isp); diff --git a/drivers/power/pda_power.c b/drivers/power/pda_power.c index fd49689738a..214468f4444 100644 --- a/drivers/power/pda_power.c +++ b/drivers/power/pda_power.c @@ -40,7 +40,7 @@ static struct timer_list polling_timer; static int polling; #ifdef CONFIG_USB_OTG_UTILS -static struct otg_transceiver *transceiver; +static struct usb_phy *transceiver; static struct notifier_block otg_nb; #endif @@ -321,7 +321,7 @@ static int pda_power_probe(struct platform_device *pdev) } #ifdef CONFIG_USB_OTG_UTILS - transceiver = otg_get_transceiver(); + transceiver = usb_get_transceiver(); if (transceiver && !pdata->is_usb_online) { pdata->is_usb_online = otg_is_usb_online; } @@ -375,7 +375,7 @@ static int pda_power_probe(struct platform_device *pdev) #ifdef CONFIG_USB_OTG_UTILS if (transceiver && pdata->use_otg_notifier) { otg_nb.notifier_call = otg_handle_notification; - ret = otg_register_notifier(transceiver, &otg_nb); + ret = usb_register_notifier(transceiver, &otg_nb); if (ret) { dev_err(dev, "failure to register otg notifier\n"); goto otg_reg_notifier_failed; @@ -409,7 +409,7 @@ usb_supply_failed: free_irq(ac_irq->start, &pda_psy_ac); #ifdef CONFIG_USB_OTG_UTILS if (transceiver) - otg_put_transceiver(transceiver); + usb_put_transceiver(transceiver); #endif ac_irq_failed: if (pdata->is_ac_online) @@ -444,7 +444,7 @@ static int pda_power_remove(struct platform_device *pdev) power_supply_unregister(&pda_psy_ac); #ifdef CONFIG_USB_OTG_UTILS if (transceiver) - otg_put_transceiver(transceiver); + usb_put_transceiver(transceiver); #endif if (ac_draw) { regulator_put(ac_draw); diff --git a/drivers/power/twl4030_charger.c b/drivers/power/twl4030_charger.c index 54b9198fa57..fdad850c77d 100644 --- a/drivers/power/twl4030_charger.c +++ b/drivers/power/twl4030_charger.c @@ -69,8 +69,8 @@ struct twl4030_bci { struct device *dev; struct power_supply ac; struct power_supply usb; - struct otg_transceiver *transceiver; - struct notifier_block otg_nb; + struct usb_phy *transceiver; + struct notifier_block usb_nb; struct work_struct work; int irq_chg; int irq_bci; @@ -279,7 +279,7 @@ static void twl4030_bci_usb_work(struct work_struct *data) static int twl4030_bci_usb_ncb(struct notifier_block *nb, unsigned long val, void *priv) { - struct twl4030_bci *bci = container_of(nb, struct twl4030_bci, otg_nb); + struct twl4030_bci *bci = container_of(nb, struct twl4030_bci, usb_nb); dev_dbg(bci->dev, "OTG notify %lu\n", val); @@ -479,10 +479,10 @@ static int __init twl4030_bci_probe(struct platform_device *pdev) INIT_WORK(&bci->work, twl4030_bci_usb_work); - bci->transceiver = otg_get_transceiver(); + bci->transceiver = usb_get_transceiver(); if (bci->transceiver != NULL) { - bci->otg_nb.notifier_call = twl4030_bci_usb_ncb; - otg_register_notifier(bci->transceiver, &bci->otg_nb); + bci->usb_nb.notifier_call = twl4030_bci_usb_ncb; + usb_register_notifier(bci->transceiver, &bci->usb_nb); } /* Enable interrupts now. */ @@ -508,8 +508,8 @@ static int __init twl4030_bci_probe(struct platform_device *pdev) fail_unmask_interrupts: if (bci->transceiver != NULL) { - otg_unregister_notifier(bci->transceiver, &bci->otg_nb); - otg_put_transceiver(bci->transceiver); + usb_unregister_notifier(bci->transceiver, &bci->usb_nb); + usb_put_transceiver(bci->transceiver); } free_irq(bci->irq_bci, bci); fail_bci_irq: @@ -539,8 +539,8 @@ static int __exit twl4030_bci_remove(struct platform_device *pdev) TWL4030_INTERRUPTS_BCIIMR2A); if (bci->transceiver != NULL) { - otg_unregister_notifier(bci->transceiver, &bci->otg_nb); - otg_put_transceiver(bci->transceiver); + usb_unregister_notifier(bci->transceiver, &bci->usb_nb); + usb_put_transceiver(bci->transceiver); } free_irq(bci->irq_bci, bci); free_irq(bci->irq_chg, bci); |