11efd54eaSAndrzej Pietrasiewicz /* 21efd54eaSAndrzej Pietrasiewicz * u_f.h 31efd54eaSAndrzej Pietrasiewicz * 41efd54eaSAndrzej Pietrasiewicz * Utility definitions for USB functions 51efd54eaSAndrzej Pietrasiewicz * 61efd54eaSAndrzej Pietrasiewicz * Copyright (c) 2013 Samsung Electronics Co., Ltd. 71efd54eaSAndrzej Pietrasiewicz * http://www.samsung.com 81efd54eaSAndrzej Pietrasiewicz * 91efd54eaSAndrzej Pietrasiewicz * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com> 101efd54eaSAndrzej Pietrasiewicz * 111efd54eaSAndrzej Pietrasiewicz * This program is free software; you can redistribute it and/or modify 121efd54eaSAndrzej Pietrasiewicz * it under the terms of the GNU General Public License version 2 as 131efd54eaSAndrzej Pietrasiewicz * published by the Free Software Foundation. 141efd54eaSAndrzej Pietrasiewicz */ 151efd54eaSAndrzej Pietrasiewicz 161efd54eaSAndrzej Pietrasiewicz #ifndef __U_F_H__ 171efd54eaSAndrzej Pietrasiewicz #define __U_F_H__ 181efd54eaSAndrzej Pietrasiewicz 1974d48466SAndrzej Pietrasiewicz /* Variable Length Array Macros **********************************************/ 2074d48466SAndrzej Pietrasiewicz #define vla_group(groupname) size_t groupname##__next = 0 2174d48466SAndrzej Pietrasiewicz #define vla_group_size(groupname) groupname##__next 2274d48466SAndrzej Pietrasiewicz 2374d48466SAndrzej Pietrasiewicz #define vla_item(groupname, type, name, n) \ 2474d48466SAndrzej Pietrasiewicz size_t groupname##_##name##__offset = ({ \ 2574d48466SAndrzej Pietrasiewicz size_t align_mask = __alignof__(type) - 1; \ 2674d48466SAndrzej Pietrasiewicz size_t offset = (groupname##__next + align_mask) & ~align_mask;\ 2774d48466SAndrzej Pietrasiewicz size_t size = (n) * sizeof(type); \ 2874d48466SAndrzej Pietrasiewicz groupname##__next = offset + size; \ 2974d48466SAndrzej Pietrasiewicz offset; \ 3074d48466SAndrzej Pietrasiewicz }) 3174d48466SAndrzej Pietrasiewicz 3274d48466SAndrzej Pietrasiewicz #define vla_item_with_sz(groupname, type, name, n) \ 3374d48466SAndrzej Pietrasiewicz size_t groupname##_##name##__sz = (n) * sizeof(type); \ 3474d48466SAndrzej Pietrasiewicz size_t groupname##_##name##__offset = ({ \ 3574d48466SAndrzej Pietrasiewicz size_t align_mask = __alignof__(type) - 1; \ 3674d48466SAndrzej Pietrasiewicz size_t offset = (groupname##__next + align_mask) & ~align_mask;\ 3774d48466SAndrzej Pietrasiewicz size_t size = groupname##_##name##__sz; \ 3874d48466SAndrzej Pietrasiewicz groupname##__next = offset + size; \ 3974d48466SAndrzej Pietrasiewicz offset; \ 4074d48466SAndrzej Pietrasiewicz }) 4174d48466SAndrzej Pietrasiewicz 4274d48466SAndrzej Pietrasiewicz #define vla_ptr(ptr, groupname, name) \ 4374d48466SAndrzej Pietrasiewicz ((void *) ((char *)ptr + groupname##_##name##__offset)) 4474d48466SAndrzej Pietrasiewicz 451efd54eaSAndrzej Pietrasiewicz struct usb_ep; 461efd54eaSAndrzej Pietrasiewicz struct usb_request; 471efd54eaSAndrzej Pietrasiewicz 481efd54eaSAndrzej Pietrasiewicz struct usb_request *alloc_ep_req(struct usb_ep *ep, int len, int default_len); 491efd54eaSAndrzej Pietrasiewicz 501efd54eaSAndrzej Pietrasiewicz #endif /* __U_F_H__ */ 511efd54eaSAndrzej Pietrasiewicz 521efd54eaSAndrzej Pietrasiewicz 53