mirror of
https://github.com/libratbag/libratbag.git
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59df7defdb
Basically a nuclear weapon to reset the flash to 0. Use it with caution! Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
111 lines
2.8 KiB
C
111 lines
2.8 KiB
C
/*
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* Copyright © 2017 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <config.h>
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#include <errno.h>
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#include <error.h>
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#include <fcntl.h>
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#include <hidpp20.h>
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#include <libratbag-util.h>
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static inline int
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reset_sector(struct hidpp20_device *dev, uint16_t sector_size, uint16_t sector)
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{
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int rc = 0;
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_cleanup_free_ uint8_t *data = NULL;
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data = zalloc(sector_size);
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/* this returns error 4: hardware error and is expected */
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rc = hidpp20_onboard_profiles_write_sector(dev, sector, sector_size, data, false);
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if (rc == 4)
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rc = 0;
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return rc;
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}
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static int
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reset_all_sectors(struct hidpp20_device *dev, uint16_t sector_size)
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{
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uint8_t sector;
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int rc = 0;
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for (sector = 1; sector < 31; sector++) {
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rc = reset_sector(dev, sector_size, sector);
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if (rc != 0)
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break;
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}
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if (!rc)
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rc = reset_sector(dev, sector_size, 0);
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return rc;
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}
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static void
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usage(void)
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{
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printf("Usage: %s [sector] /dev/hidraw0\n", program_invocation_short_name);
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}
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int
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main(int argc, char **argv)
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{
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_cleanup_close_ int fd = -1;
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const char *path;
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size_t sector = 0;
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struct hidpp20_device *dev = NULL;
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struct hidpp_device base;
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struct hidpp20_onboard_profiles_info info = { 0 };
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int rc;
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if (argc < 2 || argc > 3) {
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usage();
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return 1;
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}
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path = argv[argc - 1];
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fd = open(path, O_RDWR);
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if (fd < 0)
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error(1, errno, "Failed to open path %s", path);
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hidpp_device_init(&base, fd);
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dev = hidpp20_device_new(&base, 0xff);
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if (!dev)
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error(1, 0, "Failed to open %s as a HID++ 2.0 device", path);
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hidpp20_onboard_profiles_get_profiles_desc(dev, &info);
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if (argc == 2)
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rc = reset_all_sectors(dev, info.sector_size);
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else {
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sector = atoi(argv[1]);
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rc = reset_sector(dev, info.sector_size, sector);
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}
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hidpp20_device_destroy(dev);
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return rc;
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}
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