diff options
| author | Kumar Sanghvi <kumar.sanghvi@stericsson.com> | 2011-05-16 20:56:25 +0530 |
|---|---|---|
| committer | Philippe Langlais <philippe.langlais@stericsson.com> | 2012-05-22 11:07:11 +0200 |
| commit | 2a418882e47a84ff7b8bcd0204e848db7035aefb (patch) | |
| tree | 13599eca9f3a67e2529b70c80713f329761a07ef /include | |
| parent | 13e73ab3ca41a236ff8574a1f113e5f8ba60c022 (diff) | |
drivers: Add Modem Access Framework
Adds Modem Access Framework, which allows for registering
platform specific modem access mechanisms. The framework also
exposes APIs for client drivers for getting and releasing access
to modem, regardless of the underlying platform specific access
mechanism.
ST-Ericsson ID: CR329459
Change-Id: I643c56892e4423ec27467cbcfe8a22586c1e3f6a
Signed-off-by: Kumar Sanghvi <kumar.sanghvi@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/23553
Reviewed-by: QATEST
Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/modem/modem.h | 63 | ||||
| -rw-r--r-- | include/linux/modem/modem_client.h | 53 |
2 files changed, 116 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__ */ diff --git a/include/linux/modem/modem_client.h b/include/linux/modem/modem_client.h new file mode 100644 index 00000000000..21f04798490 --- /dev/null +++ b/include/linux/modem/modem_client.h @@ -0,0 +1,53 @@ +/* + * 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_CLIENT_H__ +#define __MODEM_CLIENT_H__ + +#include <linux/device.h> + +struct modem; + +#ifdef CONFIG_MODEM +struct modem *modem_get(struct device *dev, const char *id); +void modem_put(struct modem *modem); +void modem_request(struct modem *modem); +void modem_release(struct modem *modem); +int modem_is_requested(struct modem *modem); +int modem_get_usage(struct modem *modem); + +#else + +static inline struct modem *modem_get(struct device *dev, const char *id) +{ + return NULL; +} + +static inline void modem_put(struct modem *modem) +{ +} + +static inline void modem_request(struct modem *modem) +{ +} + +static inline void modem_release(struct modem *modem) +{ +} + +static inline int modem_is_requested(struct modem *modem) +{ + return 0; +} + +static inline int modem_get_usage(struct modem *modem) +{ + return 0; +} +#endif +#endif /* __MODEM_CLIENT_H__ */ |