72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
#include <common.h>
|
|
#include <fs.h>
|
|
|
|
#define OVERLAY_PART "1:3"
|
|
|
|
int read_file(const char* filename, char *buf, int size)
|
|
{
|
|
loff_t filesize = 0;
|
|
loff_t len;
|
|
int ret;
|
|
|
|
/* If consoldev is set take this as productive conosle instead of default console */
|
|
if (fs_set_blk_dev("mmc", OVERLAY_PART, FS_TYPE_EXT) != 0) {
|
|
puts("Error, can not set blk device\n");
|
|
return -1;
|
|
}
|
|
|
|
|
|
/* File does not exist, do not print an error message */
|
|
if (fs_size(filename, &filesize)) {
|
|
return -1;
|
|
}
|
|
|
|
if (filesize < size)
|
|
size = filesize;
|
|
|
|
/* If consoldev is set take this as productive conosle instead of default console */
|
|
if (fs_set_blk_dev("mmc", OVERLAY_PART, FS_TYPE_EXT) != 0) {
|
|
puts("Error, can not set blk device\n");
|
|
return -1;
|
|
}
|
|
|
|
|
|
if ((ret = fs_read(filename, (ulong)buf, 0, size, &len))) {
|
|
printf("Can't read file %s (size %d, len %lld, ret %d)\n", filename, size, len, ret);
|
|
return -1;
|
|
}
|
|
|
|
buf[len] = 0;
|
|
|
|
return len;
|
|
}
|
|
|
|
void fs_set_console(void)
|
|
{
|
|
loff_t len;
|
|
char buf[50] = "\n";
|
|
char *defaultconsole = getenv("defaultconsole");
|
|
|
|
if (defaultconsole == 0) {
|
|
/* This is the default console that should be used for e.g. recovery boot */
|
|
sprintf(buf, "ttyS1");
|
|
setenv("defaultconsole", buf);
|
|
}
|
|
|
|
|
|
/* If consoldev is set take this as productive conosle instead of default console */
|
|
if (fs_set_blk_dev("mmc", OVERLAY_PART, FS_TYPE_EXT) != 0) {
|
|
puts("Error, can not set blk device\n");
|
|
return;
|
|
}
|
|
|
|
fs_read("/root/boot/consoledev", (ulong)buf, 0, 5, &len);
|
|
if ((len != 5) || (strstr(buf, "tty")!=buf) || ((buf[4]<'0') && (buf[4]>'1'))) {
|
|
puts("Using default console\n");
|
|
return;
|
|
}
|
|
|
|
setenv("defaultconsoel", buf);
|
|
}
|
|
|