mirror of
https://xff.cz/git/pinephone-keyboard
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61 lines
1.4 KiB
C
61 lines
1.4 KiB
C
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/*
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* Pinephone keyboard I2C debugging tool.
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*
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* Copyright (C) 2021 Ondřej Jirman <megi@xff.cz>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "common.c"
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#include "firmware/registers.h"
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void dump_log(int fd)
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{
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int ret;
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uint8_t addr = REG_DEBUG_LOG;
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uint8_t buf[64];
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struct i2c_msg msgs[] = {
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{ KB_ADDR, 0, 1, &addr }, // set 0xff address
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{ KB_ADDR, I2C_M_RD, sizeof(buf), buf },
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};
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struct i2c_rdwr_ioctl_data msg = {
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.msgs = msgs,
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.nmsgs = sizeof(msgs) / sizeof(msgs[0])
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};
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ret = ioctl(fd, I2C_RDWR, &msg);
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syscall_error(ret < 0, "I2C_RDWR failed");
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int i;
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for (i = 0; i < sizeof(buf) && buf[i]; i++);
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if (i > 0)
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xwrite(1, buf, i);
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}
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int main(int ac, char* av[])
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{
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int fd, ret;
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fd = pogo_i2c_open();
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while (1) {
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dump_log(fd);
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usleep(10000);
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}
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return 0;
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}
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