diff options
Diffstat (limited to 'include/linux/modem/modem.h')
| -rw-r--r-- | include/linux/modem/modem.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/include/linux/modem/modem.h b/include/linux/modem/modem.h new file mode 100644 index 00000000000..c9614a9b061 --- /dev/null +++ b/include/linux/modem/modem.h @@ -0,0 +1,63 @@ +/* + * Copyright (C) ST-Ericsson SA 2011 + * + * License Terms: GNU General Public License v2 + * Author: Kumar Sanghvi <kumar.sanghvi@stericsson.com> + * + * Heavily adapted from Regulator framework + */ +#ifndef __MODEM_H__ +#define __MODEM_H__ + +#include <linux/device.h> + +struct modem_dev; + +struct modem_ops { + void (*request)(struct modem_dev *); + void (*release)(struct modem_dev *); + int (*is_requested)(struct modem_dev *); +}; + +struct modem_desc { + const char *name; + int id; + struct modem_ops *ops; + struct module *owner; +}; + +struct modem_dev { + struct modem_desc *desc; + int use_count; + int open_count; + int exclusive; + + struct list_head modem_list; + + struct list_head client_list; + + struct blocking_notifier_head notifier; + struct mutex mutex; + struct module *owner; + struct device dev; + void *modem_data; +}; + +#ifdef CONFIG_MODEM +struct modem_dev *modem_register(struct modem_desc *modem_desc, + struct device *dev, + void *driver_data); +void modem_unregister(struct modem_dev *mdev); + +#else +static inline struct modem_dev *modem_register(struct modem_desc *modem_desc, + struct device *dev, void *driver_data) +{ + return NULL; +} + +static inline void modem_unregister(struct modem_dev *mdev) +{ +} +#endif +#endif /* __MODEM_H__ */ |