diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/drivers/usb/gadget/u_os_desc.h | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/drivers/usb/gadget/u_os_desc.h')
| -rw-r--r-- | roms/u-boot/drivers/usb/gadget/u_os_desc.h | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/usb/gadget/u_os_desc.h b/roms/u-boot/drivers/usb/gadget/u_os_desc.h new file mode 100644 index 000000000..4dab4814a --- /dev/null +++ b/roms/u-boot/drivers/usb/gadget/u_os_desc.h @@ -0,0 +1,123 @@ +/* + * u_os_desc.h + * + * Utility definitions for "OS Descriptors" support + * + * Copyright (c) 2014 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __U_OS_DESC_H__ +#define __U_OS_DESC_H__ + +#include <linux/utf.h> + +#define USB_EXT_PROP_DW_SIZE 0 +#define USB_EXT_PROP_DW_PROPERTY_DATA_TYPE 4 +#define USB_EXT_PROP_W_PROPERTY_NAME_LENGTH 8 +#define USB_EXT_PROP_B_PROPERTY_NAME 10 +#define USB_EXT_PROP_DW_PROPERTY_DATA_LENGTH 10 +#define USB_EXT_PROP_B_PROPERTY_DATA 14 + +#define USB_EXT_PROP_RESERVED 0 +#define USB_EXT_PROP_UNICODE 1 +#define USB_EXT_PROP_UNICODE_ENV 2 +#define USB_EXT_PROP_BINARY 3 +#define USB_EXT_PROP_LE32 4 +#define USB_EXT_PROP_BE32 5 +#define USB_EXT_PROP_UNICODE_LINK 6 +#define USB_EXT_PROP_UNICODE_MULTI 7 + +static inline u8 *__usb_ext_prop_ptr(u8 *buf, size_t offset) +{ + return buf + offset; +} + +static inline u8 *usb_ext_prop_size_ptr(u8 *buf) +{ + return __usb_ext_prop_ptr(buf, USB_EXT_PROP_DW_SIZE); +} + +static inline u8 *usb_ext_prop_type_ptr(u8 *buf) +{ + return __usb_ext_prop_ptr(buf, USB_EXT_PROP_DW_PROPERTY_DATA_TYPE); +} + +static inline u8 *usb_ext_prop_name_len_ptr(u8 *buf) +{ + return __usb_ext_prop_ptr(buf, USB_EXT_PROP_W_PROPERTY_NAME_LENGTH); +} + +static inline u8 *usb_ext_prop_name_ptr(u8 *buf) +{ + return __usb_ext_prop_ptr(buf, USB_EXT_PROP_B_PROPERTY_NAME); +} + +static inline u8 *usb_ext_prop_data_len_ptr(u8 *buf, size_t off) +{ + return __usb_ext_prop_ptr(buf, + USB_EXT_PROP_DW_PROPERTY_DATA_LENGTH + off); +} + +static inline u8 *usb_ext_prop_data_ptr(u8 *buf, size_t off) +{ + return __usb_ext_prop_ptr(buf, USB_EXT_PROP_B_PROPERTY_DATA + off); +} + +static inline void usb_ext_prop_put_size(u8 *buf, int dw_size) +{ + put_unaligned_le32(dw_size, usb_ext_prop_size_ptr(buf)); +} + +static inline void usb_ext_prop_put_type(u8 *buf, int type) +{ + put_unaligned_le32(type, usb_ext_prop_type_ptr(buf)); +} + +static inline int usb_ext_prop_put_name(u8 *buf, const char *name, int pnl) +{ + int result; + + put_unaligned_le16(pnl, usb_ext_prop_name_len_ptr(buf)); + memset(usb_ext_prop_name_ptr(buf), 0, 2 * strlen(name)); + result = utf8_to_utf16le(name, (__le16 *)usb_ext_prop_name_ptr(buf), + strlen(name)); + if (result < 0) + return result; + + put_unaligned_le16(0, &buf[USB_EXT_PROP_B_PROPERTY_NAME + pnl - 2]); + + return pnl; +} + +static inline void usb_ext_prop_put_binary(u8 *buf, int pnl, const char *data, + int data_len) +{ + put_unaligned_le32(data_len, usb_ext_prop_data_len_ptr(buf, pnl)); + memcpy(usb_ext_prop_data_ptr(buf, pnl), data, data_len); +} + +static inline int usb_ext_prop_put_unicode(u8 *buf, int pnl, const char *string, + int data_len) +{ + int result; + put_unaligned_le32(data_len, usb_ext_prop_data_len_ptr(buf, pnl)); + memset(usb_ext_prop_data_ptr(buf, pnl), 0, 2 * (data_len >> 1)); + result = utf8_to_utf16le(string, (__le16 *) usb_ext_prop_data_ptr(buf, pnl), + data_len >> 1); + if (result < 0) + return result; + + put_unaligned_le16(0, + &buf[USB_EXT_PROP_B_PROPERTY_DATA + pnl + data_len - 2]); + + return data_len; +} + +#endif /* __U_OS_DESC_H__ */ |