From 16297cfb2a20c9d89834cd9e31edac5184a777a1 Mon Sep 17 00:00:00 2001 From: Mateusz Zalega Date: Fri, 4 Oct 2013 19:22:26 +0200 Subject: usb: new board-specific USB init interface This commit unifies board-specific USB initialization implementations under one symbol (usb_board_init), declaration of which is available in usb.h. New API allows selective initialization of USB controllers whenever needed. Signed-off-by: Mateusz Zalega Signed-off-by: Kyungmin Park Reviewed-by: Lukasz Majewski Cc: Marek Vasut Cc: Lukasz Majewski --- include/g_dnl.h | 2 -- include/usb.h | 30 ++++++++++++++++++++++++++++-- include/usb_mass_storage.h | 13 +++++-------- 3 files changed, 33 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/include/g_dnl.h b/include/g_dnl.h index 2b2f11a62f..b6c4dd4ac3 100644 --- a/include/g_dnl.h +++ b/include/g_dnl.h @@ -14,6 +14,4 @@ int g_dnl_bind_fixup(struct usb_device_descriptor *); int g_dnl_register(const char *s); void g_dnl_unregister(void); -/* USB initialization declaration - board specific */ -void board_usb_init(void); #endif /* __G_DOWNLOAD_H_ */ diff --git a/include/usb.h b/include/usb.h index a96ec235c8..17fb68cf16 100644 --- a/include/usb.h +++ b/include/usb.h @@ -167,10 +167,36 @@ int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer, extern void udc_disconnect(void); -#else -#error USB Lowlevel not defined #endif +/* + * You can initialize platform's USB host or device + * ports by passing this enum as an argument to + * board_usb_init(). + */ +enum board_usb_init_type { + USB_INIT_HOST, + USB_INIT_DEVICE +}; + +/* + * board-specific hardware initialization, called by + * usb drivers and u-boot commands + * + * @param index USB controller number + * @param init initializes controller as USB host or device + */ +int board_usb_init(int index, enum board_usb_init_type init); + +/* + * can be used to clean up after failed USB initialization attempt + * vide: board_usb_init() + * + * @param index USB controller number for selective cleanup + * @param init board_usb_init_type passed to board_usb_init() + */ +int board_usb_cleanup(int index, enum board_usb_init_type init); + #ifdef CONFIG_USB_STORAGE #define USB_MAX_STOR_DEV 5 diff --git a/include/usb_mass_storage.h b/include/usb_mass_storage.h index e08deb4ddf..13f535ce2e 100644 --- a/include/usb_mass_storage.h +++ b/include/usb_mass_storage.h @@ -31,14 +31,11 @@ struct ums_board_info { struct ums_device ums_dev; }; -extern void board_usb_init(void); - -extern int fsg_init(struct ums_board_info *); -extern void fsg_cleanup(void); -extern struct ums_board_info *board_ums_init(unsigned int, - unsigned int, unsigned int); -extern int usb_gadget_handle_interrupts(void); -extern int fsg_main_thread(void *); +int fsg_init(struct ums_board_info *); +void fsg_cleanup(void); +struct ums_board_info *board_ums_init(unsigned int, unsigned int, + unsigned int); +int fsg_main_thread(void *); #ifdef CONFIG_USB_GADGET_MASS_STORAGE int fsg_add(struct usb_configuration *c); -- cgit v1.2.1