Patrick Georgi | ea063cb | 2020-05-08 19:28:13 +0200 | [diff] [blame] | 1 | /* uio_usbdebug - Run coreboot's usbdebug driver in userspace */ |
Patrick Georgi | 7333a11 | 2020-05-08 20:48:04 +0200 | [diff] [blame] | 2 | /* SPDX-License-Identifier: GPL-2.0-only */ |
Nico Huber | b0f8326 | 2014-01-01 20:47:55 +0100 | [diff] [blame] | 3 | |
| 4 | #include <stdio.h> |
| 5 | #include <sys/stat.h> |
| 6 | #include <fcntl.h> |
| 7 | #include <unistd.h> |
| 8 | #include <sys/mman.h> |
| 9 | |
| 10 | #include <pci/pci.h> |
| 11 | |
| 12 | /* coreboot's arch/io.h conflicts with libc's sys/io.h, so declare this here: */ |
| 13 | int ioperm(unsigned long from, unsigned long num, int turn_on); |
| 14 | |
| 15 | #include <arch/io.h> |
| 16 | #include <console/usb.h> |
| 17 | |
| 18 | void *ehci_bar; |
| 19 | struct pci_access *pci_access; |
| 20 | |
| 21 | int main(int argc, char *argv[]) |
| 22 | { |
| 23 | if (argc != 2) { |
| 24 | fprintf(stderr, "Usage: %s <uio-dev>\n", argv[0]); |
| 25 | return 1; |
| 26 | } |
| 27 | const int fd = open(argv[1], O_RDWR); |
| 28 | if (fd < 0) { |
| 29 | perror("Failed to open uio device"); |
| 30 | return 2; |
| 31 | } |
| 32 | ehci_bar = |
| 33 | mmap(NULL, 1 << 8, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); |
| 34 | if (MAP_FAILED == ehci_bar) { |
| 35 | perror("Failed to map ehci bar"); |
| 36 | close(fd); |
| 37 | return 3; |
| 38 | } |
| 39 | |
| 40 | ioperm(0x80, 1, 1); |
| 41 | |
| 42 | pci_access = pci_alloc(); |
| 43 | pci_init(pci_access); |
| 44 | |
| 45 | usbdebug_init(); |
| 46 | |
| 47 | pci_cleanup(pci_access); |
| 48 | munmap(ehci_bar, 1 << 8); |
| 49 | close(fd); |
| 50 | return 0; |
| 51 | } |