This patch adds additional sysfs entries to provide status information to the userland.
The following informations are now provided: - Get operation hours counter - Get board slot address - Get powercycle counter - Set/get Hw Variant Signed-off-by: Andreas Werner <andreas.wer...@men.de> --- drivers/mfd/menf21bmc.c | 99 +++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 96 insertions(+), 3 deletions(-) diff --git a/drivers/mfd/menf21bmc.c b/drivers/mfd/menf21bmc.c index 742ffe7..dd068c0 100644 --- a/drivers/mfd/menf21bmc.c +++ b/drivers/mfd/menf21bmc.c @@ -20,6 +20,10 @@ #define BMC_CMD_REV_MAJOR 0x80 #define BMC_CMD_REV_MINOR 0x81 #define BMC_CMD_REV_MAIN 0x82 +#define BMC_CMD_SLOT_ADDRESS 0x8c +#define BMC_CMD_HW_VARIANT 0x8f +#define BMC_CMD_PWRCYCL_CNT 0x93 +#define BMC_CMD_OP_HRS_CNT 0x94 static struct mfd_cell menf21bmc_cell[] = { { .name = "menf21bmc_wdt", }, @@ -28,7 +32,7 @@ static struct mfd_cell menf21bmc_cell[] = { }; static ssize_t menf21bmc_mode_show(struct device *dev, - struct device_attribute *attr, char *buf) + struct device_attribute *attr, char *buf) { struct i2c_client *client = to_i2c_client(dev); int val; @@ -41,8 +45,8 @@ static ssize_t menf21bmc_mode_show(struct device *dev, } static ssize_t menf21bmc_mode_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t size) + struct device_attribute *attr, + const char *buf, size_t size) { struct i2c_client *client = to_i2c_client(dev); unsigned long mode_val; @@ -66,11 +70,100 @@ static ssize_t menf21bmc_mode_store(struct device *dev, return size; } +static ssize_t menf21bmc_hw_variant_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + int val; + + val = i2c_smbus_read_word_data(client, BMC_CMD_HW_VARIANT); + if (val < 0) + return val; + + return sprintf(buf, "0x%04x\n", val); + +} + +static ssize_t menf21bmc_hw_variant_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct i2c_client *client = to_i2c_client(dev); + unsigned long hw_variant; + int ret; + + if (kstrtoul(buf, 0, &hw_variant)) + return -EINVAL; + + if (hw_variant < 0 || hw_variant > 0xffff) + return -EINVAL; + + ret = i2c_smbus_write_word_data(client, BMC_CMD_HW_VARIANT, + hw_variant); + if (ret < 0) + return ret; + + return size; + +} + +static ssize_t menf21bmc_pwrcycl_cnt_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + int val; + + val = i2c_smbus_read_word_data(client, BMC_CMD_PWRCYCL_CNT); + if (val < 0) + return val; + + return sprintf(buf, "%d\n", val); +} + +static ssize_t menf21bmc_op_hrs_cnt_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + int val; + + val = i2c_smbus_read_word_data(client, BMC_CMD_OP_HRS_CNT); + if (val < 0) + return val; + + return sprintf(buf, "%d\n", val); +} + +static ssize_t menf21bmc_slot_address_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + int val; + + val = i2c_smbus_read_byte_data(client, BMC_CMD_SLOT_ADDRESS); + if (val < 0) + return val; + + return sprintf(buf, "%d\n", val); +} + static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, menf21bmc_mode_show, menf21bmc_mode_store); +static DEVICE_ATTR(hw_variant, S_IRUGO | S_IWUSR, menf21bmc_hw_variant_show, + menf21bmc_hw_variant_store); +static DEVICE_ATTR(pwrcycl_cnt, S_IRUGO, menf21bmc_pwrcycl_cnt_show, NULL); +static DEVICE_ATTR(op_hrs_cnt, S_IRUGO, menf21bmc_op_hrs_cnt_show, NULL); +static DEVICE_ATTR(slot_address, S_IRUGO, menf21bmc_slot_address_show, NULL); static struct attribute *menf21bmc_attributes[] = { &dev_attr_mode.attr, + &dev_attr_hw_variant.attr, + &dev_attr_pwrcycl_cnt.attr, + &dev_attr_op_hrs_cnt.attr, + &dev_attr_slot_address.attr, NULL }; -- 2.6.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/