52 lines
1.0 KiB
C
52 lines
1.0 KiB
C
/* uio_usbdebug - Run coreboot's usbdebug driver in userspace */
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/* SPDX-License-Identifier: GPL-2.0-only */
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#include <stdio.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <pci/pci.h>
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/* coreboot's arch/io.h conflicts with libc's sys/io.h, so declare this here: */
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int ioperm(unsigned long from, unsigned long num, int turn_on);
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#include <arch/io.h>
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#include <console/usb.h>
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void *ehci_bar;
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struct pci_access *pci_access;
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int main(int argc, char *argv[])
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{
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if (argc != 2) {
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fprintf(stderr, "Usage: %s <uio-dev>\n", argv[0]);
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return 1;
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}
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const int fd = open(argv[1], O_RDWR);
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if (fd < 0) {
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perror("Failed to open uio device");
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return 2;
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}
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ehci_bar =
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mmap(NULL, 1 << 8, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
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if (MAP_FAILED == ehci_bar) {
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perror("Failed to map ehci bar");
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close(fd);
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return 3;
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}
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ioperm(0x80, 1, 1);
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pci_access = pci_alloc();
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pci_init(pci_access);
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usbdebug_init();
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pci_cleanup(pci_access);
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munmap(ehci_bar, 1 << 8);
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close(fd);
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return 0;
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}
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