diff options
Diffstat (limited to 'util/uio_usbdebug/uio_usbdebug.c')
-rw-r--r-- | util/uio_usbdebug/uio_usbdebug.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/util/uio_usbdebug/uio_usbdebug.c b/util/uio_usbdebug/uio_usbdebug.c new file mode 100644 index 0000000000..e2836fc3b1 --- /dev/null +++ b/util/uio_usbdebug/uio_usbdebug.c @@ -0,0 +1,67 @@ +/* + * uio_usbdebug - Run coreboot's usbdebug driver in userspace + * + * Copyright (C) 2013 Nico Huber <nico.h@gmx.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <stdio.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <unistd.h> +#include <sys/mman.h> + +#include <pci/pci.h> + +/* coreboot's arch/io.h conflicts with libc's sys/io.h, so declare this here: */ +int ioperm(unsigned long from, unsigned long num, int turn_on); + +#include <arch/io.h> +#include <console/usb.h> + +void *ehci_bar; +struct pci_access *pci_access; + +int main(int argc, char *argv[]) +{ + if (argc != 2) { + fprintf(stderr, "Usage: %s <uio-dev>\n", argv[0]); + return 1; + } + const int fd = open(argv[1], O_RDWR); + if (fd < 0) { + perror("Failed to open uio device"); + return 2; + } + ehci_bar = + mmap(NULL, 1 << 8, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); + if (MAP_FAILED == ehci_bar) { + perror("Failed to map ehci bar"); + close(fd); + return 3; + } + + ioperm(0x80, 1, 1); + + pci_access = pci_alloc(); + pci_init(pci_access); + + usbdebug_init(); + + pci_cleanup(pci_access); + munmap(ehci_bar, 1 << 8); + close(fd); + return 0; +} |