diff options
| -rw-r--r-- | drivers/rtc/rtc-ds1685.c | 221 |
1 files changed, 0 insertions, 221 deletions
diff --git a/drivers/rtc/rtc-ds1685.c b/drivers/rtc/rtc-ds1685.c index 5c0db6c8134c..c3755d04575f 100644 --- a/drivers/rtc/rtc-ds1685.c +++ b/drivers/rtc/rtc-ds1685.c @@ -1520,217 +1520,6 @@ ds1685_rtc_sysfs_ctrl4b_grp = { .name = "ctrl4b", .attrs = ds1685_rtc_sysfs_ctrl4b_attrs, }; - - -/** - * struct ds1685_rtc_ctrl_regs. - * @name: char pointer for the bit name. - * @reg: control register the bit is in. - * @bit: the bit's offset in the register. - */ -struct ds1685_rtc_time_regs { - const char *name; - const u8 reg; - const u8 mask; - const u8 min; - const u8 max; -}; - -/* - * Time/Date register lookup tables. - */ -static const struct ds1685_rtc_time_regs -ds1685_time_regs_bcd_table[] = { - { "seconds", RTC_SECS, RTC_SECS_BCD_MASK, 0, 59 }, - { "minutes", RTC_MINS, RTC_MINS_BCD_MASK, 0, 59 }, - { "hours", RTC_HRS, RTC_HRS_24_BCD_MASK, 0, 23 }, - { "wday", RTC_WDAY, RTC_WDAY_MASK, 1, 7 }, - { "mday", RTC_MDAY, RTC_MDAY_BCD_MASK, 1, 31 }, - { "month", RTC_MONTH, RTC_MONTH_BCD_MASK, 1, 12 }, - { "year", RTC_YEAR, RTC_YEAR_BCD_MASK, 0, 99 }, - { "century", RTC_CENTURY, RTC_CENTURY_MASK, 0, 99 }, - { "alarm_seconds", RTC_SECS_ALARM, RTC_SECS_BCD_MASK, 0, 59 }, - { "alarm_minutes", RTC_MINS_ALARM, RTC_MINS_BCD_MASK, 0, 59 }, - { "alarm_hours", RTC_HRS_ALARM, RTC_HRS_24_BCD_MASK, 0, 23 }, - { "alarm_mday", RTC_MDAY_ALARM, RTC_MDAY_ALARM_MASK, 1, 31 }, - { NULL, 0, 0, 0, 0 }, -}; - -static const struct ds1685_rtc_time_regs -ds1685_time_regs_bin_table[] = { - { "seconds", RTC_SECS, RTC_SECS_BIN_MASK, 0x00, 0x3b }, - { "minutes", RTC_MINS, RTC_MINS_BIN_MASK, 0x00, 0x3b }, - { "hours", RTC_HRS, RTC_HRS_24_BIN_MASK, 0x00, 0x17 }, - { "wday", RTC_WDAY, RTC_WDAY_MASK, 0x01, 0x07 }, - { "mday", RTC_MDAY, RTC_MDAY_BIN_MASK, 0x01, 0x1f }, - { "month", RTC_MONTH, RTC_MONTH_BIN_MASK, 0x01, 0x0c }, - { "year", RTC_YEAR, RTC_YEAR_BIN_MASK, 0x00, 0x63 }, - { "century", RTC_CENTURY, RTC_CENTURY_MASK, 0x00, 0x63 }, - { "alarm_seconds", RTC_SECS_ALARM, RTC_SECS_BIN_MASK, 0x00, 0x3b }, - { "alarm_minutes", RTC_MINS_ALARM, RTC_MINS_BIN_MASK, 0x00, 0x3b }, - { "alarm_hours", RTC_HRS_ALARM, RTC_HRS_24_BIN_MASK, 0x00, 0x17 }, - { "alarm_mday", RTC_MDAY_ALARM, RTC_MDAY_ALARM_MASK, 0x01, 0x1f }, - { NULL, 0, 0, 0x00, 0x00 }, -}; - -/** - * ds1685_rtc_sysfs_time_regs_bcd_lookup - time/date reg bit lookup function. - * @name: register bit to look up in ds1685_time_regs_bcd_table. - */ -static const struct ds1685_rtc_time_regs* -ds1685_rtc_sysfs_time_regs_lookup(const char *name, bool bcd_mode) -{ - const struct ds1685_rtc_time_regs *p; - - if (bcd_mode) - p = ds1685_time_regs_bcd_table; - else - p = ds1685_time_regs_bin_table; - - for (; p->name != NULL; ++p) - if (strcmp(p->name, name) == 0) - return p; - - return NULL; -} - -/** - * ds1685_rtc_sysfs_time_regs_show - reads a time/date register via sysfs. - * @dev: pointer to device structure. - * @attr: pointer to device_attribute structure. - * @buf: pointer to char array to hold the output. - */ -static ssize_t -ds1685_rtc_sysfs_time_regs_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - u8 tmp; - struct ds1685_priv *rtc = dev_get_drvdata(dev); - const struct ds1685_rtc_time_regs *bcd_reg_info = - ds1685_rtc_sysfs_time_regs_lookup(attr->attr.name, true); - const struct ds1685_rtc_time_regs *bin_reg_info = - ds1685_rtc_sysfs_time_regs_lookup(attr->attr.name, false); - - /* Make sure we actually matched something. */ - if (!bcd_reg_info || !bin_reg_info) - return -EINVAL; - - /* bcd_reg_info->reg == bin_reg_info->reg. */ - ds1685_rtc_begin_data_access(rtc); - tmp = rtc->read(rtc, bcd_reg_info->reg); - ds1685_rtc_end_data_access(rtc); - - tmp = ds1685_rtc_bcd2bin(rtc, tmp, bcd_reg_info->mask, - bin_reg_info->mask); - - return sprintf(buf, "%d\n", tmp); -} - -/** - * ds1685_rtc_sysfs_time_regs_store - writes a time/date register via sysfs. - * @dev: pointer to device structure. - * @attr: pointer to device_attribute structure. - * @buf: pointer to char array to hold the output. - * @count: number of bytes written. - */ -static ssize_t -ds1685_rtc_sysfs_time_regs_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - long int val = 0; - struct ds1685_priv *rtc = dev_get_drvdata(dev); - const struct ds1685_rtc_time_regs *bcd_reg_info = - ds1685_rtc_sysfs_time_regs_lookup(attr->attr.name, true); - const struct ds1685_rtc_time_regs *bin_reg_info = - ds1685_rtc_sysfs_time_regs_lookup(attr->attr.name, false); - - /* We only accept numbers. */ - if (kstrtol(buf, 10, &val) < 0) - return -EINVAL; - - /* Make sure we actually matched something. */ - if (!bcd_reg_info || !bin_reg_info) - return -EINVAL; - - /* Check for a valid range. */ - if (rtc->bcd_mode) { - if ((val < bcd_reg_info->min) || (val > bcd_reg_info->max)) - return -ERANGE; - } else { - if ((val < bin_reg_info->min) || (val > bin_reg_info->max)) - return -ERANGE; - } - - val = ds1685_rtc_bin2bcd(rtc, val, bin_reg_info->mask, - bcd_reg_info->mask); - - /* bcd_reg_info->reg == bin_reg_info->reg. */ - ds1685_rtc_begin_data_access(rtc); - rtc->write(rtc, bcd_reg_info->reg, val); - ds1685_rtc_end_data_access(rtc); - - return count; -} - -/** - * DS1685_RTC_SYSFS_REG_RW - device_attribute for a read-write time register. - * @reg: time/date register to read or write. - */ -#define DS1685_RTC_SYSFS_TIME_REG_RW(reg) \ - static DEVICE_ATTR(reg, S_IRUGO | S_IWUSR, \ - ds1685_rtc_sysfs_time_regs_show, \ - ds1685_rtc_sysfs_time_regs_store) - -/* - * Time/Date Register bits. - */ -DS1685_RTC_SYSFS_TIME_REG_RW(seconds); -DS1685_RTC_SYSFS_TIME_REG_RW(minutes); -DS1685_RTC_SYSFS_TIME_REG_RW(hours); -DS1685_RTC_SYSFS_TIME_REG_RW(wday); -DS1685_RTC_SYSFS_TIME_REG_RW(mday); -DS1685_RTC_SYSFS_TIME_REG_RW(month); -DS1685_RTC_SYSFS_TIME_REG_RW(year); -DS1685_RTC_SYSFS_TIME_REG_RW(century); -DS1685_RTC_SYSFS_TIME_REG_RW(alarm_seconds); -DS1685_RTC_SYSFS_TIME_REG_RW(alarm_minutes); -DS1685_RTC_SYSFS_TIME_REG_RW(alarm_hours); -DS1685_RTC_SYSFS_TIME_REG_RW(alarm_mday); - -static struct attribute* -ds1685_rtc_sysfs_time_attrs[] = { - &dev_attr_seconds.attr, - &dev_attr_minutes.attr, - &dev_attr_hours.attr, - &dev_attr_wday.attr, - &dev_attr_mday.attr, - &dev_attr_month.attr, - &dev_attr_year.attr, - &dev_attr_century.attr, - NULL, -}; - -static const struct attribute_group -ds1685_rtc_sysfs_time_grp = { - .name = "datetime", - .attrs = ds1685_rtc_sysfs_time_attrs, -}; - -static struct attribute* -ds1685_rtc_sysfs_alarm_attrs[] = { - &dev_attr_alarm_seconds.attr, - &dev_attr_alarm_minutes.attr, - &dev_attr_alarm_hours.attr, - &dev_attr_alarm_mday.attr, - NULL, -}; - -static const struct attribute_group -ds1685_rtc_sysfs_alarm_grp = { - .name = "alarm", - .attrs = ds1685_rtc_sysfs_alarm_attrs, -}; #endif /* CONFIG_RTC_DS1685_SYSFS_REGS */ @@ -1776,14 +1565,6 @@ ds1685_rtc_sysfs_register(struct device *dev) ret = sysfs_create_group(&dev->kobj, &ds1685_rtc_sysfs_ctrl4b_grp); if (ret) return ret; - - ret = sysfs_create_group(&dev->kobj, &ds1685_rtc_sysfs_time_grp); - if (ret) - return ret; - - ret = sysfs_create_group(&dev->kobj, &ds1685_rtc_sysfs_alarm_grp); - if (ret) - return ret; #endif return 0; } @@ -1805,8 +1586,6 @@ ds1685_rtc_sysfs_unregister(struct device *dev) sysfs_remove_group(&dev->kobj, &ds1685_rtc_sysfs_ctrld_grp); sysfs_remove_group(&dev->kobj, &ds1685_rtc_sysfs_ctrl4a_grp); sysfs_remove_group(&dev->kobj, &ds1685_rtc_sysfs_ctrl4b_grp); - sysfs_remove_group(&dev->kobj, &ds1685_rtc_sysfs_time_grp); - sysfs_remove_group(&dev->kobj, &ds1685_rtc_sysfs_alarm_grp); #endif return 0; |