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path: root/drivers/usb/gadget/mass_storage.c
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2010-03-02USB: mass_storage: eject LUNs on thread exitMichal Nazarewicz
Adds a fallback which forces all LUNs ejection (including non-removable and with prevent_medium_removal flag) when mass storage function (MSF) worker thread exits and gadget fails to handle the situation. Previously, if thread_exits was not specified mass storage function (MSF) did nothing when exiting thread as it's unclear for *function* what to do when it's thread terminates so responsibility of handling this situation was left to the *gadget* using the function. The g_mass_storage handled the situation by unregistering itself (the same thing that file storage gadget does). However, g_multi did nothing and so MSF did not eject LUNs which prevented file system unmounting. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: g_mass_storage: thread_exits callback addedMichal Nazarewicz
thread_exits callback has been added to fsg_common structure. This callback is called when MSF's thread exits (is terminated by a signal or function is unregistered). It's then gadget's responsibility to unregister the gadget. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: g_mass_storage: code cleaned up and comments updatedMichal Nazarewicz
Fixed most of the errors and warnings in f_mass_storage.c and storage_common.c reported by checkpatch.pl as well as updated comments. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: g_mass_storage: fsg_config added & module params handlig changedMichal Nazarewicz
Removed all references to mod_data in f_mass_storage.c and instead created fsg_config structure fsg_common_init() takes as an argument -- it stores all configuration options that were previously taken from mod_data. Moreover, The fsg_config structure allows per-LUN configuration of removable and CD-ROM emulation. Module parameters are handled by defining an object of fsg_module_parameters structure and then declaring module parameters via FSG_MODULE_PARAMETERS() macro. It adds proper declarations to the code making specified object be populated from module parameters. To use values stored there one may use either fsg_config_from_params() which will will a fsg_config structure with values taken from fsg_module_parameters structure or fsg_common_from_params() which will initialise fsg_common structure directly. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: g_mass_storage: Mass Storage Function createdMichal Nazarewicz
The f_mass_storage.c has been changed into a composite function. mass_storage.c file has been introduced which defines a g_mass_storage gadget based on composite framework. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>