+ SENSOR_ATTR(fan7_input, 0444, show_fan_value, NULL, 6),
+ SENSOR_ATTR(fan7_div, 0644, show_fan_div, store_fan_div, 6),
+ SENSOR_ATTR(fan7_alarm, 0444, show_fan_alarm, NULL, 6),
+ SENSOR_ATTR(fan7_fault, 0444, show_fan_fault, NULL, 6),
+ SENSOR_ATTR(pwm7_auto_point1_pwm, 0644, show_pwm_auto_point1_pwm,
+ store_pwm_auto_point1_pwm, 6),
+};
+
+
+/*
+ * Watchdog routines
+ */
+
+static int watchdog_set_timeout(struct fschmd_data *data, int timeout)
+{
+ int ret, resolution;
+ int kind = data->kind + 1; /* 0-x array index -> 1-x module param */
+
+ /* 2 second or 60 second resolution? */
+ if (timeout <= 510 || kind == fscpos || kind == fscscy)
+ resolution = 2;
+ else
+ resolution = 60;
+
+ if (timeout < resolution || timeout > (resolution * 255))
+ return -EINVAL;
+
+ mutex_lock(&data->watchdog_lock);
+ if (!data->client) {
+ ret = -ENODEV;
+ goto leave;
+ }
+
+ if (resolution == 2)
+ data->watchdog_control &= ~FSCHMD_WDOG_CONTROL_RESOLUTION;
+ else
+ data->watchdog_control |= FSCHMD_WDOG_CONTROL_RESOLUTION;
+
+ data->watchdog_preset = DIV_ROUND_UP(timeout, resolution);
+
+ /* Write new timeout value */
+ i2c_smbus_write_byte_data(data->client,
+ FSCHMD_REG_WDOG_PRESET[data->kind], data->watchdog_preset);
+ /* Write new control register, do not trigger! */
+ i2c_smbus_write_byte_data(data->client,
+ FSCHMD_REG_WDOG_CONTROL[data->kind],
+ data->watchdog_control & ~FSCHMD_WDOG_CONTROL_TRIGGER);
+
+ ret = data->watchdog_preset * resolution;
+
+leave:
+ mutex_unlock(&data->watchdog_lock);
+ return ret;
+}
+
+static int watchdog_get_timeout(struct fschmd_data *data)
+{
+ int timeout;
+
+ mutex_lock(&data->watchdog_lock);
+ if (data->watchdog_control & FSCHMD_WDOG_CONTROL_RESOLUTION)
+ timeout = data->watchdog_preset * 60;
+ else
+ timeout = data->watchdog_preset * 2;
+ mutex_unlock(&data->watchdog_lock);
+
+ return timeout;
+}
+
+static int watchdog_trigger(struct fschmd_data *data)
+{
+ int ret = 0;
+
+ mutex_lock(&data->watchdog_lock);
+ if (!data->client) {
+ ret = -ENODEV;
+ goto leave;
+ }
+
+ data->watchdog_control |= FSCHMD_WDOG_CONTROL_TRIGGER;
+ i2c_smbus_write_byte_data(data->client,
+ FSCHMD_REG_WDOG_CONTROL[data->kind],
+ data->watchdog_control);
+leave:
+ mutex_unlock(&data->watchdog_lock);
+ return ret;
+}
+
+static int watchdog_stop(struct fschmd_data *data)
+{
+ int ret = 0;
+
+ mutex_lock(&data->watchdog_lock);
+ if (!data->client) {
+ ret = -ENODEV;
+ goto leave;
+ }
+
+ data->watchdog_control &= ~FSCHMD_WDOG_CONTROL_STARTED;
+ /* Don't store the stop flag in our watchdog control register copy, as
+ its a write only bit (read always returns 0) */
+ i2c_smbus_write_byte_data(data->client,
+ FSCHMD_REG_WDOG_CONTROL[data->kind],
+ data->watchdog_control | FSCHMD_WDOG_CONTROL_STOP);
+leave:
+ mutex_unlock(&data->watchdog_lock);
+ return ret;
+}
+
+static int watchdog_open(struct inode *inode, struct file *filp)
+{
+ struct fschmd_data *pos, *data = NULL;
+ int watchdog_is_open;
+
+ /* We get called from drivers/char/misc.c with misc_mtx hold, and we
+ call misc_register() from fschmd_probe() with watchdog_data_mutex
+ hold, as misc_register() takes the misc_mtx lock, this is a possible
+ deadlock, so we use mutex_trylock here. */
+ if (!mutex_trylock(&watchdog_data_mutex))
+ return -ERESTARTSYS;
+ list_for_each_entry(pos, &watchdog_data_list, list) {
+ if (pos->watchdog_miscdev.minor == iminor(inode)) {
+ data = pos;
+ break;
+ }
+ }
+ /* Note we can never not have found data, so we don't check for this */
+ watchdog_is_open = test_and_set_bit(0, &data->watchdog_is_open);
+ if (!watchdog_is_open)
+ kref_get(&data->kref);
+ mutex_unlock(&watchdog_data_mutex);
+
+ if (watchdog_is_open)
+ return -EBUSY;
+
+ /* Start the watchdog */
+ watchdog_trigger(data);
+ filp->private_data = data;
+
+ return nonseekable_open(inode, filp);
+}
+
+static int watchdog_release(struct inode *inode, struct file *filp)
+{
+ struct fschmd_data *data = filp->private_data;
+
+ if (data->watchdog_expect_close) {
+ watchdog_stop(data);
+ data->watchdog_expect_close = 0;
+ } else {
+ watchdog_trigger(data);
+ dev_crit(&data->client->dev,
+ "unexpected close, not stopping watchdog!\n");
+ }
+
+ clear_bit(0, &data->watchdog_is_open);
+
+ mutex_lock(&watchdog_data_mutex);
+ kref_put(&data->kref, fschmd_release_resources);
+ mutex_unlock(&watchdog_data_mutex);
+
+ return 0;
+}
+
+static ssize_t watchdog_write(struct file *filp, const char __user *buf,
+ size_t count, loff_t *offset)
+{
+ int ret;
+ struct fschmd_data *data = filp->private_data;
+
+ if (count) {
+ if (!nowayout) {
+ size_t i;
+
+ /* Clear it in case it was set with a previous write */
+ data->watchdog_expect_close = 0;
+
+ for (i = 0; i != count; i++) {
+ char c;
+ if (get_user(c, buf + i))
+ return -EFAULT;
+ if (c == 'V')
+ data->watchdog_expect_close = 1;
+ }
+ }
+ ret = watchdog_trigger(data);
+ if (ret < 0)
+ return ret;
+ }
+ return count;
+}
+
+static long watchdog_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+ static struct watchdog_info ident = {
+ .options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT |
+ WDIOF_CARDRESET,
+ .identity = "FSC watchdog"
+ };
+ int i, ret = 0;
+ struct fschmd_data *data = filp->private_data;
+
+ lock_kernel();
+ switch (cmd) {
+ case WDIOC_GETSUPPORT:
+ ident.firmware_version = data->revision;
+ if (!nowayout)
+ ident.options |= WDIOF_MAGICCLOSE;
+ if (copy_to_user((void __user *)arg, &ident, sizeof(ident)))
+ ret = -EFAULT;
+ break;
+
+ case WDIOC_GETSTATUS:
+ ret = put_user(0, (int __user *)arg);
+ break;
+
+ case WDIOC_GETBOOTSTATUS:
+ if (data->watchdog_state & FSCHMD_WDOG_STATE_CARDRESET)
+ ret = put_user(WDIOF_CARDRESET, (int __user *)arg);
+ else
+ ret = put_user(0, (int __user *)arg);
+ break;
+
+ case WDIOC_KEEPALIVE:
+ ret = watchdog_trigger(data);
+ break;
+
+ case WDIOC_GETTIMEOUT:
+ i = watchdog_get_timeout(data);
+ ret = put_user(i, (int __user *)arg);
+ break;
+
+ case WDIOC_SETTIMEOUT:
+ if (get_user(i, (int __user *)arg)) {
+ ret = -EFAULT;
+ break;
+ }
+ ret = watchdog_set_timeout(data, i);
+ if (ret > 0)
+ ret = put_user(ret, (int __user *)arg);
+ break;
+
+ case WDIOC_SETOPTIONS:
+ if (get_user(i, (int __user *)arg)) {
+ ret = -EFAULT;
+ break;
+ }
+
+ if (i & WDIOS_DISABLECARD)
+ ret = watchdog_stop(data);
+ else if (i & WDIOS_ENABLECARD)
+ ret = watchdog_trigger(data);
+ else
+ ret = -EINVAL;
+
+ break;
+ default:
+ ret = -ENOTTY;
+ }
+ unlock_kernel();
+ return ret;
+}
+
+static const struct file_operations watchdog_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .open = watchdog_open,
+ .release = watchdog_release,
+ .write = watchdog_write,
+ .unlocked_ioctl = watchdog_ioctl,