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/*
* XMM6260 Firmware loader functions
* Copyright (C) 2012 Alexander Tarasikov <alexander.tarasikov@gmail.com>
* Copyright (C) 2012 Paul Kocialkowski <contact@paulk.fr>
*
* based on the incomplete C++ implementation which is
* Copyright (C) 2012 Sergey Gridasov <grindars@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __XMM6260_LOADER_H__
#define __XMM6260_LOADER_H__
#define RADIO_MAP_SIZE (16 << 20)
#define DEFAULT_TIMEOUT 50
/*
* Offset and length to describe a part of XMM6260 firmware
*/
struct xmm6260_radio_part {
size_t offset;
size_t length;
};
/*
* Components of the Samsung XMM6260 firmware
*/
enum xmm6260_image {
PSI,
EBL,
SECURE_IMAGE,
FIRMWARE,
NVDATA,
};
/*
* Bootloader control interface definitions
*/
enum xmm6260_boot_cmd {
SetPortConf,
ReqSecStart,
ReqSecEnd,
ReqForceHwReset,
ReqFlashSetAddress,
ReqFlashWriteBlock,
};
/*
* @brief Calculate the checksum for the XMM6260 bootloader protocol
*
* @param data [in] the data to calculate the checksum for
* @param offset [in] number of bytes to skip
* @param length [in] length of data in bytes
* @return checksum value
*/
unsigned char xmm6260_crc_calculate(void* data, size_t offset, size_t length);
/*
* @brief Waits for fd to become available for reading
*
* @param fd [in] File descriptor of the socket
* @param timeout [in] Timeout in milliseconds
* @return Negative value indicating error code
* @return Available socket number - 1, as select()
*/
int expect(int fd, unsigned timeout);
/*
* @brief Waits for data available and reads it to the buffer
*
* @param fd [in] File descriptor of the socket
* @param buf Buffer to hold data
* @param size [in] The number of bytes to read
* @return Negative value indicating error code
* @return The size of data received
*/
int expect_read(int fd, void *buf, size_t size);
/*
* @brief Receives data and compares with the pattern in memory
*
* @param fd [in] File descriptor of the socket
* @param data [in] The pattern to compare to
* @param size [in] The length of data to read in bytes
* @return Negative value indicating error code
* @return Available socket number - 1, as select()
*/
int expect_data(int fd, void *data, size_t size);
#endif
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