| /* uio_usbdebug - Run coreboot's usbdebug driver in userspace */ |
| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #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; |
| } |