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/* SPDX-License-Identifier: GPL-2.0-only */
#include "coreinfo.h"
#if CONFIG(MODULE_RAMDUMP)
static s64 cursor = 0;
static s64 cursor_max = (1 * 1024 * 1024 * 1024); /* Max. 1 GB RAM for now. */
static int ramdump_module_init(void)
{
return 0;
}
static void dump_ram(WINDOW *win, uint32_t addr, int row, int col)
{
int i, x = 0, y = 0, count = 0;
volatile uint8_t *ptr = (void *)(addr);
mvwprintw(win, 0, col + 54, "RAM address: 0x%08x", addr);
/* Dump 256 bytes of RAM. */
for (i = 1; i < 257; i++) {
if (x == 0) {
mvwprintw(win, row + y, col - 1, "%08x", addr + 16 * y);
mvwaddch(win, row + y, col + 59, '|');
mvwaddch(win, row + y, col + 76, '|');
}
mvwprintw(win, row + y, col + x + 9, "%02x", ptr[i - 1]);
mvwprintw(win, row + y, 62 + count++, "%c",
isprint(ptr[i - 1]) ? ptr[i - 1] : ' ');
x += 3;
if (x == 24) /* One more space after column/byte 8. */
x++;
if (i % 16 == 0) {
y++; /* Start a newline after 16 bytes. */
x = count = 0;
}
}
}
static int ramdump_module_redraw(WINDOW *win)
{
print_module_title(win, "RAM Dump");
dump_ram(win, cursor * 256, 2, 2);
return 0;
}
static int ramdump_module_handle(int key)
{
switch (key) {
case KEY_DOWN:
cursor++;
break;
case KEY_UP:
cursor--;
break;
case KEY_RIGHT:
cursor += 256;
break;
case KEY_LEFT:
cursor -= 256;
break;
case KEY_PPAGE:
cursor += 4096; /* Jump in 1MB steps. */
break;
case KEY_NPAGE:
cursor -= 4096; /* Jump in 1MB steps. */
break;
}
if (cursor > cursor_max)
cursor = cursor_max;
if (cursor < 0)
cursor = 0;
return 1;
}
struct coreinfo_module ramdump_module = {
.name = "RAM Dump",
.init = ramdump_module_init,
.redraw = ramdump_module_redraw,
.handle = ramdump_module_handle,
};
#else
struct coreinfo_module ramdump_module = {
};
#endif
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