Jacob Garber | 07201d7 | 2020-09-08 12:25:44 -0600 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
Uwe Hermann | 2fbbb29 | 2008-07-08 16:18:38 +0000 | [diff] [blame] | 2 | |
| 3 | #include "coreinfo.h" |
| 4 | |
Julius Werner | eab2a29 | 2019-03-05 16:55:15 -0800 | [diff] [blame] | 5 | #if CONFIG(MODULE_RAMDUMP) |
Uwe Hermann | 2fbbb29 | 2008-07-08 16:18:38 +0000 | [diff] [blame] | 6 | |
| 7 | static s64 cursor = 0; |
| 8 | static s64 cursor_max = (1 * 1024 * 1024 * 1024); /* Max. 1 GB RAM for now. */ |
| 9 | |
| 10 | static int ramdump_module_init(void) |
| 11 | { |
| 12 | return 0; |
| 13 | } |
| 14 | |
| 15 | static void dump_ram(WINDOW *win, uint32_t addr, int row, int col) |
| 16 | { |
| 17 | int i, x = 0, y = 0, count = 0; |
| 18 | volatile uint8_t *ptr = (void *)(addr); |
| 19 | |
Stefan Reinauer | 31575f6 | 2016-03-12 12:17:48 -0800 | [diff] [blame] | 20 | mvwprintw(win, 0, col + 54, "RAM address: 0x%08x", addr); |
Uwe Hermann | 2fbbb29 | 2008-07-08 16:18:38 +0000 | [diff] [blame] | 21 | |
| 22 | /* Dump 256 bytes of RAM. */ |
| 23 | for (i = 1; i < 257; i++) { |
| 24 | if (x == 0) { |
| 25 | mvwprintw(win, row + y, col - 1, "%08x", addr + 16 * y); |
Ulf Jordan | c5c1442 | 2008-08-09 20:15:00 +0000 | [diff] [blame] | 26 | mvwaddch(win, row + y, col + 59, '|'); |
| 27 | mvwaddch(win, row + y, col + 76, '|'); |
Uwe Hermann | 2fbbb29 | 2008-07-08 16:18:38 +0000 | [diff] [blame] | 28 | } |
| 29 | mvwprintw(win, row + y, col + x + 9, "%02x", ptr[i - 1]); |
Ulf Jordan | 94c1bd8 | 2008-09-30 06:13:54 +0000 | [diff] [blame] | 30 | mvwprintw(win, row + y, 62 + count++, "%c", |
| 31 | isprint(ptr[i - 1]) ? ptr[i - 1] : ' '); |
Uwe Hermann | 2fbbb29 | 2008-07-08 16:18:38 +0000 | [diff] [blame] | 32 | x += 3; |
| 33 | if (x == 24) /* One more space after column/byte 8. */ |
| 34 | x++; |
| 35 | if (i % 16 == 0) { |
| 36 | y++; /* Start a newline after 16 bytes. */ |
| 37 | x = count = 0; |
| 38 | } |
| 39 | } |
| 40 | } |
| 41 | |
| 42 | static int ramdump_module_redraw(WINDOW *win) |
| 43 | { |
| 44 | print_module_title(win, "RAM Dump"); |
| 45 | dump_ram(win, cursor * 256, 2, 2); |
| 46 | |
| 47 | return 0; |
| 48 | } |
| 49 | |
| 50 | static int ramdump_module_handle(int key) |
| 51 | { |
| 52 | switch (key) { |
| 53 | case KEY_DOWN: |
Uwe Hermann | 2fbbb29 | 2008-07-08 16:18:38 +0000 | [diff] [blame] | 54 | cursor++; |
| 55 | break; |
| 56 | case KEY_UP: |
Uwe Hermann | 2fbbb29 | 2008-07-08 16:18:38 +0000 | [diff] [blame] | 57 | cursor--; |
| 58 | break; |
Myles Watson | 44163f7 | 2009-08-24 15:25:11 +0000 | [diff] [blame] | 59 | case KEY_RIGHT: |
| 60 | cursor += 256; |
| 61 | break; |
| 62 | case KEY_LEFT: |
| 63 | cursor -= 256; |
Uwe Hermann | 2fbbb29 | 2008-07-08 16:18:38 +0000 | [diff] [blame] | 64 | break; |
| 65 | case KEY_PPAGE: |
Myles Watson | 44163f7 | 2009-08-24 15:25:11 +0000 | [diff] [blame] | 66 | cursor += 4096; /* Jump in 1MB steps. */ |
| 67 | break; |
| 68 | case KEY_NPAGE: |
Uwe Hermann | 2fbbb29 | 2008-07-08 16:18:38 +0000 | [diff] [blame] | 69 | cursor -= 4096; /* Jump in 1MB steps. */ |
| 70 | break; |
| 71 | } |
| 72 | |
| 73 | if (cursor > cursor_max) |
| 74 | cursor = cursor_max; |
| 75 | |
| 76 | if (cursor < 0) |
| 77 | cursor = 0; |
| 78 | |
| 79 | return 1; |
| 80 | } |
| 81 | |
| 82 | struct coreinfo_module ramdump_module = { |
| 83 | .name = "RAM Dump", |
| 84 | .init = ramdump_module_init, |
| 85 | .redraw = ramdump_module_redraw, |
| 86 | .handle = ramdump_module_handle, |
| 87 | }; |
| 88 | |
| 89 | #else |
| 90 | |
| 91 | struct coreinfo_module ramdump_module = { |
| 92 | }; |
| 93 | |
| 94 | #endif |