Commit 93bcf12e authored by Michal Nazarewicz's avatar Michal Nazarewicz Committed by Greg Kroah-Hartman
Browse files

USB: g_mass_storage: testing code from f_mass_storage.c removed 



Removed code that was included when CONFIG_USB_FILE_STORAGE_TEST
was defined.  If this functionality is required one may still use
the original File-backed Storage Gadget.  It has been agreed that
testing functionality is not required in the composite function.

Also removed fsg_suspend() and fsg_resume() which were no
operations.

Moreover, storage_common.c has been modified in such a way that
defining certain macros skips parts of the file.  Those macros
are:
* FSG_NO_INTR_EP -- skips interrupt endpoint descriptors
* FSG_NO_DEVICE_STRINGS -- skips certain strings
* FSG_NO_OTG -- skips OTG descriptor

Signed-off-by: default avatarMichal Nazarewicz <m.nazarewicz@samsung.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent d5e2b67a

drivers/usb/gadget/f_mass_storage.c

+92 −570

File changed.

Preview size limit exceeded, changes collapsed.

drivers/usb/gadget/storage_common.c

+48 −2
Original line number Diff line number Diff line
@@ -33,6 +33,20 @@ 
 * macro is defined prior to including this file.

 */



/*

 * When FSG_NO_INTR_EP is defined fsg_fs_intr_in_desc and

 * fsg_hs_intr_in_desc objects as well as

 * FSG_FS_FUNCTION_PRE_EP_ENTRIES and FSG_HS_FUNCTION_PRE_EP_ENTRIES

 * macros are not defined.

 *

 * When FSG_NO_DEVICE_STRINGS is defined FSG_STRING_MANUFACTURER,

 * FSG_STRING_PRODUCT, FSG_STRING_SERIAL and FSG_STRING_CONFIG are not

 * defined (as well as corresponding entries in string tables are

 * missing) and FSG_STRING_INTERFACE has value of zero.

 *

 * When FSG_NO_OTG is defined fsg_otg_desc won't be defined.

 */





#include <asm/unaligned.h>
@@ -327,14 +341,17 @@ static inline u32 get_unaligned_be24(u8 *buf) 




enum {

#ifndef FSG_NO_DEVICE_STRINGS

	FSG_STRING_MANUFACTURER	= 1,

	FSG_STRING_PRODUCT,

	FSG_STRING_SERIAL,

	FSG_STRING_CONFIG,

#endif

	FSG_STRING_INTERFACE

};





#ifndef FSG_NO_OTG

static struct usb_otg_descriptor

fsg_otg_desc = {

	.bLength =		sizeof fsg_otg_desc,
@@ -342,6 +359,7 @@ fsg_otg_desc = { 


	.bmAttributes =		USB_OTG_SRP,

};

#endif



/* There is only one interface. */
@@ -380,6 +398,8 @@ fsg_fs_bulk_out_desc = { 
	/* wMaxPacketSize set by autoconfiguration */

};



#ifndef FSG_NO_INTR_EP



static struct usb_endpoint_descriptor

fsg_fs_intr_in_desc = {

	.bLength =		USB_DT_ENDPOINT_SIZE,
@@ -391,15 +411,26 @@ fsg_fs_intr_in_desc = { 
	.bInterval =		32,	// frames -> 32 ms

};



#ifndef FSG_NO_OTG

#  define FSG_FS_FUNCTION_PRE_EP_ENTRIES	2

#else

#  define FSG_FS_FUNCTION_PRE_EP_ENTRIES	1

#endif



#endif



static const struct usb_descriptor_header *fsg_fs_function[] = {

#ifndef FSG_NO_OTG

	(struct usb_descriptor_header *) &fsg_otg_desc,

#endif

	(struct usb_descriptor_header *) &fsg_intf_desc,

	(struct usb_descriptor_header *) &fsg_fs_bulk_in_desc,

	(struct usb_descriptor_header *) &fsg_fs_bulk_out_desc,

#ifndef FSG_NO_INTR_EP

	(struct usb_descriptor_header *) &fsg_fs_intr_in_desc,

#endif

	NULL,

};

#define FSG_FS_FUNCTION_PRE_EP_ENTRIES	2





/*
@@ -431,6 +462,8 @@ fsg_hs_bulk_out_desc = { 
	.bInterval =		1,	// NAK every 1 uframe

};



#ifndef FSG_NO_INTR_EP



static struct usb_endpoint_descriptor

fsg_hs_intr_in_desc = {

	.bLength =		USB_DT_ENDPOINT_SIZE,
@@ -442,15 +475,26 @@ fsg_hs_intr_in_desc = { 
	.bInterval =		9,	// 2**(9-1) = 256 uframes -> 32 ms

};



#ifndef FSG_NO_OTG

#  define FSG_HS_FUNCTION_PRE_EP_ENTRIES	2

#else

#  define FSG_HS_FUNCTION_PRE_EP_ENTRIES	1

#endif



#endif



static const struct usb_descriptor_header *fsg_hs_function[] = {

#ifndef FSG_NO_OTG

	(struct usb_descriptor_header *) &fsg_otg_desc,

#endif

	(struct usb_descriptor_header *) &fsg_intf_desc,

	(struct usb_descriptor_header *) &fsg_hs_bulk_in_desc,

	(struct usb_descriptor_header *) &fsg_hs_bulk_out_desc,

#ifndef FSG_NO_INTR_EP

	(struct usb_descriptor_header *) &fsg_hs_intr_in_desc,

#endif

	NULL,

};

#define FSG_HS_FUNCTION_PRE_EP_ENTRIES	2



/* Maxpacket and other transfer characteristics vary by speed. */

static struct usb_endpoint_descriptor *
@@ -465,10 +509,12 @@ fsg_ep_desc(struct usb_gadget *g, struct usb_endpoint_descriptor *fs, 


/* Static strings, in UTF-8 (for simplicity we use only ASCII characters) */

static struct usb_string		fsg_strings[] = {

#ifndef FSG_NO_DEVICE_STRINGS

	{FSG_STRING_MANUFACTURER,	fsg_string_manufacturer},

	{FSG_STRING_PRODUCT,		fsg_string_product},

	{FSG_STRING_SERIAL,		fsg_string_serial},

	{FSG_STRING_CONFIG,		fsg_string_config},

#endif

	{FSG_STRING_INTERFACE,		fsg_string_interface},

	{}

};

CRA Git | Maintained and supported by SUSTech CRA and CCSE