protocol.c revision f838788e6a4d57634a53eb597ee76a597feffcb5
1dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 2dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project 3dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * All rights reserved. 4dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 5dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Redistribution and use in source and binary forms, with or without 6dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * modification, are permitted provided that the following conditions 7dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * are met: 8dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * * Redistributions of source code must retain the above copyright 9dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * notice, this list of conditions and the following disclaimer. 10dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * * Redistributions in binary form must reproduce the above copyright 11dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * notice, this list of conditions and the following disclaimer in 125ae3f93f3bafbeb1fc9a3324475c58c725749c5eAnatol Pomazau * the documentation and/or other materials provided with the 13dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * distribution. 14dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 15dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 225ae3f93f3bafbeb1fc9a3324475c58c725749c5eAnatol Pomazau * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * SUCH DAMAGE. 27dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 28dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 29f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross#define min(a, b) \ 30f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross ({ typeof(a) _a = (a); typeof(b) _b = (b); (_a < _b) ? _a : _b; }) 31f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross#define round_down(a, b) \ 32f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross ({ typeof(a) _a = (a); typeof(b) _b = (b); _a - (_a % _b); }) 33f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 34dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <stdio.h> 35dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <stdlib.h> 36dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <string.h> 37dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <errno.h> 38dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 39f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross#include <sparse/sparse.h> 40f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 41dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include "fastboot.h" 42dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 43dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic char ERROR[128]; 44dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 45dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectchar *fb_get_error(void) 46dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 47dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return ERROR; 48dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 49dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 50f838788e6a4d57634a53eb597ee76a597feffcb5Colin Crossstatic int check_response(usb_handle *usb, unsigned int size, char *response) 51dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 52dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project unsigned char status[65]; 53dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int r; 54dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 55dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for(;;) { 56dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project r = usb_read(usb, status, 64); 57dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(r < 0) { 58dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sprintf(ERROR, "status read failed (%s)", strerror(errno)); 59dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project usb_close(usb); 60dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 61dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 62dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project status[r] = 0; 63dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 64dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(r < 4) { 65dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sprintf(ERROR, "status malformed (%d bytes)", r); 66dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project usb_close(usb); 67dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 68dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 69dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 70dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(!memcmp(status, "INFO", 4)) { 7163e5205cd2f693bbfa54411f2dd20354bd30ffd8Brian Swetland fprintf(stderr,"(bootloader) %s\n", status + 4); 72dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project continue; 73dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 74dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 75dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(!memcmp(status, "OKAY", 4)) { 76dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(response) { 77dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project strcpy(response, (char*) status + 4); 78dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 79dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 80dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 81dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 82dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(!memcmp(status, "FAIL", 4)) { 83dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(r > 4) { 84dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sprintf(ERROR, "remote: %s", status + 4); 85dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 86dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project strcpy(ERROR, "remote failure"); 87dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 88dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 89dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 90dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 91f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross if(!memcmp(status, "DATA", 4) && size > 0){ 92dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project unsigned dsize = strtoul((char*) status + 4, 0, 16); 93dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(dsize > size) { 94dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project strcpy(ERROR, "data size too large"); 95dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project usb_close(usb); 96dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 97dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 98dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return dsize; 99dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 100dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 101dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project strcpy(ERROR,"unknown status code"); 102dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project usb_close(usb); 103dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 104dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 105dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 106dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 107dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 108dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 109f838788e6a4d57634a53eb597ee76a597feffcb5Colin Crossstatic int _command_start(usb_handle *usb, const char *cmd, unsigned size, 110f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross char *response) 111dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 112dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int cmdsize = strlen(cmd); 113dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int r; 1145ae3f93f3bafbeb1fc9a3324475c58c725749c5eAnatol Pomazau 115dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(response) { 116dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project response[0] = 0; 117dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 118dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 119dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(cmdsize > 64) { 120dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sprintf(ERROR,"command too large"); 121dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 122dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 123dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 124dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(usb_write(usb, cmd, cmdsize) != cmdsize) { 125dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sprintf(ERROR,"command write failed (%s)", strerror(errno)); 126dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project usb_close(usb); 127dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 128dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 129dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 130f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return check_response(usb, size, response); 131f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross} 132f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 133f838788e6a4d57634a53eb597ee76a597feffcb5Colin Crossstatic int _command_data(usb_handle *usb, const void *data, unsigned size) 134f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross{ 135f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross int r; 136f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 137f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross r = usb_write(usb, data, size); 138f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross if(r < 0) { 139f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross sprintf(ERROR, "data transfer failure (%s)", strerror(errno)); 140f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross usb_close(usb); 141f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return -1; 142f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross } 143f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross if(r != ((int) size)) { 144f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross sprintf(ERROR, "data transfer failure (short transfer)"); 145f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross usb_close(usb); 146f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return -1; 147dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 148dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 149f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return r; 150f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross} 151f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 152f838788e6a4d57634a53eb597ee76a597feffcb5Colin Crossstatic int _command_end(usb_handle *usb) 153f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross{ 154f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross int r; 155f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross r = check_response(usb, 0, 0); 156dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(r < 0) { 157dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 158dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 159f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return 0; 160f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross} 161dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 162f838788e6a4d57634a53eb597ee76a597feffcb5Colin Crossstatic int _command_send(usb_handle *usb, const char *cmd, 163f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross const void *data, unsigned size, 164f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross char *response) 165f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross{ 166f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross int r; 167f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross if (size == 0) { 168f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return -1; 169dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1705ae3f93f3bafbeb1fc9a3324475c58c725749c5eAnatol Pomazau 171f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross r = _command_start(usb, cmd, size, response); 172f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross if (r < 0) { 173f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return -1; 174f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross } 175f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 176f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross r = _command_data(usb, data, size); 177f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross if (r < 0) { 178f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return -1; 179f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross } 180f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 181f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross r = _command_end(usb); 182dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(r < 0) { 183dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 184dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 185f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 186f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return size; 187f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross} 188f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 189f838788e6a4d57634a53eb597ee76a597feffcb5Colin Crossstatic int _command_send_no_data(usb_handle *usb, const char *cmd, 190f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross char *response) 191f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross{ 192f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross int r; 193f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 194f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return _command_start(usb, cmd, 0, response); 195dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 196dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 197dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectint fb_command(usb_handle *usb, const char *cmd) 198dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 199f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return _command_send_no_data(usb, cmd, 0); 200dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 201dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 202dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectint fb_command_response(usb_handle *usb, const char *cmd, char *response) 203dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 204f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return _command_send_no_data(usb, cmd, response); 205dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 206dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 207dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectint fb_download_data(usb_handle *usb, const void *data, unsigned size) 208dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 209dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char cmd[64]; 210dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int r; 2115ae3f93f3bafbeb1fc9a3324475c58c725749c5eAnatol Pomazau 212dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sprintf(cmd, "download:%08x", size); 213dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project r = _command_send(usb, cmd, data, size, 0); 2145ae3f93f3bafbeb1fc9a3324475c58c725749c5eAnatol Pomazau 215dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(r < 0) { 216dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 217dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 218dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 219dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 220dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 221dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 222f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross#define USB_BUF_SIZE 512 223f838788e6a4d57634a53eb597ee76a597feffcb5Colin Crossstatic char usb_buf[USB_BUF_SIZE]; 224f838788e6a4d57634a53eb597ee76a597feffcb5Colin Crossstatic int usb_buf_len; 225f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 226f838788e6a4d57634a53eb597ee76a597feffcb5Colin Crossstatic int fb_download_data_sparse_write(void *priv, const void *data, int len) 227f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross{ 228f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross int r; 229f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross usb_handle *usb = priv; 230f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross int to_write; 231f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross const char *ptr = data; 232f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 233f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross if (usb_buf_len) { 234f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross to_write = min(USB_BUF_SIZE - usb_buf_len, len); 235f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 236f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross memcpy(usb_buf + usb_buf_len, ptr, to_write); 237f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross usb_buf_len += to_write; 238f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross ptr += to_write; 239f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross len -= to_write; 240f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross } 241f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 242f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross if (usb_buf_len == USB_BUF_SIZE) { 243f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross r = _command_data(usb, usb_buf, USB_BUF_SIZE); 244f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross if (r != USB_BUF_SIZE) { 245f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return -1; 246f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross } 247f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross usb_buf_len = 0; 248f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross } 249f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 250f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross if (len > USB_BUF_SIZE) { 251f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross if (usb_buf_len > 0) { 252f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross sprintf(ERROR, "internal error: usb_buf not empty\n"); 253f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return -1; 254f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross } 255f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross to_write = round_down(len, USB_BUF_SIZE); 256f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross r = _command_data(usb, ptr, to_write); 257f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross if (r != to_write) { 258f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return -1; 259f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross } 260f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross ptr += to_write; 261f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross len -= to_write; 262f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross } 263f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 264f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross if (len > 0) { 265f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross if (len > USB_BUF_SIZE) { 266f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross sprintf(ERROR, "internal error: too much left for usb_buf\n"); 267f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return -1; 268f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross } 269f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross memcpy(usb_buf, ptr, len); 270f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross usb_buf_len = len; 271f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross } 272f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 273f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return 0; 274f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross} 275f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 276f838788e6a4d57634a53eb597ee76a597feffcb5Colin Crossstatic int fb_download_data_sparse_flush(usb_handle *usb) 277f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross{ 278f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross int r; 279f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 280f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross if (usb_buf_len > 0) { 281f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross r = _command_data(usb, usb_buf, usb_buf_len); 282f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross if (r != usb_buf_len) { 283f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return -1; 284f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross } 285f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross usb_buf_len = 0; 286f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross } 287f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 288f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return 0; 289f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross} 290f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 291f838788e6a4d57634a53eb597ee76a597feffcb5Colin Crossint fb_download_data_sparse(usb_handle *usb, struct sparse_file *s) 292f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross{ 293f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross char cmd[64]; 294f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross int r; 295f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross int size = sparse_file_len(s, true, false); 296f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross if (size <= 0) { 297f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return -1; 298f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross } 299f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 300f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross sprintf(cmd, "download:%08x", size); 301f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross r = _command_start(usb, cmd, size, 0); 302f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross if (r < 0) { 303f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return -1; 304f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross } 305f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 306f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross r = sparse_file_callback(s, true, false, fb_download_data_sparse_write, usb); 307f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross if (r < 0) { 308f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return -1; 309f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross } 310f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 311f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross fb_download_data_sparse_flush(usb); 312f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross 313f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross return _command_end(usb); 314f838788e6a4d57634a53eb597ee76a597feffcb5Colin Cross} 315