| Marcin Bukat | 8f4202d | 2011-05-30 21:10:43 +0000 | [diff] [blame] | 1 | #include <unistd.h> |
| 2 | #include <stdio.h> |
| 3 | #include <stdint.h> |
| 4 | #include <stdbool.h> |
| 5 | #include <stdlib.h> |
| 6 | #include <string.h> |
| 7 | #include <libusb.h> |
| 8 | |
| 9 | #include "rk27load.h" |
| 10 | #include "common.h" |
| 11 | #include "scramble.h" |
| 12 | #include "checksum.h" |
| 13 | #include "stage1_upload.h" |
| 14 | |
| 15 | /* ### upload sdram init code ### */ |
| 16 | int upload_stage1_code(libusb_device_handle *hdev, char *fn_stage1, |
| 17 | bool do_scramble) |
| 18 | { |
| 19 | FILE *f; |
| 20 | int ret; |
| 21 | uint8_t *code; |
| 22 | uint32_t codesize; |
| 23 | uint16_t cks; |
| 24 | |
| 25 | if ((f = fopen(fn_stage1, "rb")) == NULL) |
| 26 | { |
| 27 | fprintf(stderr, "[error]: Could not open file \"%s\"\n", fn_stage1); |
| 28 | return -10; |
| 29 | } |
| 30 | |
| 31 | codesize = filesize(f); |
| 32 | |
| 33 | if (codesize > 0x1fe) |
| 34 | { |
| 35 | fprintf(stderr, "[error]: Code too big for stage1\n"); |
| 36 | return -11; |
| 37 | } |
| 38 | |
| 39 | fprintf(stderr, "[stage1]: Loading %d bytes (%s) of code... ", codesize, fn_stage1); |
| 40 | |
| 41 | code = (uint8_t *)malloc(0x200); |
| 42 | if (code == NULL) |
| 43 | { |
| 44 | fprintf(stderr, "\n[error]: Out of memory\n"); |
| 45 | fclose(f); |
| 46 | return -12; |
| 47 | } |
| 48 | |
| 49 | memset(code, 0, 0x200); |
| 50 | if (fread(code, 1, codesize, f) != codesize) |
| 51 | { |
| 52 | fprintf(stderr, "\n[error]: I/O error\n"); |
| 53 | fclose(f); |
| 54 | free(code); |
| 55 | return -13; |
| 56 | } |
| 57 | |
| 58 | fprintf(stderr, "done\n"); |
| 59 | fclose(f); |
| 60 | |
| 61 | /* encode data if requested */ |
| 62 | if (do_scramble) |
| 63 | { |
| 64 | |
| 65 | fprintf(stderr, "[stage1]: Encoding %d bytes of data ... ", codesize); |
| 66 | scramble(code, code, codesize); |
| 67 | fprintf(stderr, "done\n"); |
| 68 | } |
| 69 | |
| 70 | |
| 71 | fprintf(stderr, "[stage1]: codesize = %d (0x%x)\n", codesize, codesize); |
| 72 | |
| 73 | fprintf(stderr, "[stage1]: Calculating checksum... "); |
| 74 | cks = checksum((void *)code, codesize); |
| 75 | fprintf(stderr, "0x%04x\n", cks); |
| 76 | code[0x1fe] = (cks >> 8) & 0xff; |
| 77 | code[0x1ff] = cks & 0xff; |
| 78 | codesize += 2; |
| 79 | |
| 80 | fprintf(stderr, "[stage1]: Uploading code (%d bytes)... ", codesize); |
| 81 | |
| 82 | ret = libusb_control_transfer(hdev, /* device handle */ |
| 83 | USB_EP0, /* bmRequestType */ |
| 84 | VCMD_UPLOAD, /* bRequest */ |
| 85 | 0, /* wValue */ |
| 86 | VCMD_INDEX_STAGE1, /* wIndex */ |
| 87 | code, /* data */ |
| 88 | codesize, /* wLength */ |
| 89 | USB_TIMEOUT /* timeout */ |
| 90 | ); |
| 91 | if (ret < 0) |
| 92 | { |
| 93 | fprintf(stderr, "\n[error]: Code upload request failed (ret=%d)\n", ret); |
| 94 | free(code); |
| 95 | return -14; |
| 96 | } |
| 97 | |
| 98 | if (ret != (int)codesize) |
| 99 | { |
| 100 | fprintf(stderr, "\n[error]: Sent %d of %d total\n", ret, codesize); |
| 101 | free(code); |
| 102 | return -15; |
| 103 | } |
| 104 | |
| 105 | sleep(1); /* wait for code to finish */ |
| 106 | fprintf(stderr, "done\n"); |
| 107 | |
| 108 | /* free code */ |
| 109 | free(code); |
| 110 | |
| 111 | return 0; |
| 112 | } |
| 113 | |