1eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti/* 2eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti * PPS sysfs support 3eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti * 4eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti * 5eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti * Copyright (C) 2007-2009 Rodolfo Giometti <giometti@linux.it> 6eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti * 7eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti * This program is free software; you can redistribute it and/or modify 8eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti * it under the terms of the GNU General Public License as published by 9eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti * the Free Software Foundation; either version 2 of the License, or 10eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti * (at your option) any later version. 11eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti * 12eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti * This program is distributed in the hope that it will be useful, 13eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti * but WITHOUT ANY WARRANTY; without even the implied warranty of 14eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti * GNU General Public License for more details. 16eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti * 17eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti * You should have received a copy of the GNU General Public License 18eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti * along with this program; if not, write to the Free Software 19eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti */ 21eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti 22eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti 23eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti#include <linux/device.h> 24eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti#include <linux/module.h> 25eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti#include <linux/string.h> 26eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti#include <linux/pps_kernel.h> 27eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti 28eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti/* 29eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti * Attribute functions 30eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti */ 31eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti 32eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giomettistatic ssize_t pps_show_assert(struct device *dev, 33eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti struct device_attribute *attr, char *buf) 34eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti{ 35eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti struct pps_device *pps = dev_get_drvdata(dev); 36eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti 37eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti if (!(pps->info.mode & PPS_CAPTUREASSERT)) 38eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti return 0; 39eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti 40eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti return sprintf(buf, "%lld.%09d#%d\n", 41eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti (long long) pps->assert_tu.sec, pps->assert_tu.nsec, 42eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti pps->assert_sequence); 43eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti} 44eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti 45eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giomettistatic ssize_t pps_show_clear(struct device *dev, 46eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti struct device_attribute *attr, char *buf) 47eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti{ 48eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti struct pps_device *pps = dev_get_drvdata(dev); 49eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti 50eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti if (!(pps->info.mode & PPS_CAPTURECLEAR)) 51eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti return 0; 52eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti 53eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti return sprintf(buf, "%lld.%09d#%d\n", 54eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti (long long) pps->clear_tu.sec, pps->clear_tu.nsec, 55eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti pps->clear_sequence); 56eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti} 57eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti 58eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giomettistatic ssize_t pps_show_mode(struct device *dev, 59eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti struct device_attribute *attr, char *buf) 60eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti{ 61eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti struct pps_device *pps = dev_get_drvdata(dev); 62eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti 63eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti return sprintf(buf, "%4x\n", pps->info.mode); 64eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti} 65eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti 66eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giomettistatic ssize_t pps_show_echo(struct device *dev, 67eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti struct device_attribute *attr, char *buf) 68eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti{ 69eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti struct pps_device *pps = dev_get_drvdata(dev); 70eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti 71eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti return sprintf(buf, "%d\n", !!pps->info.echo); 72eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti} 73eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti 74eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giomettistatic ssize_t pps_show_name(struct device *dev, 75eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti struct device_attribute *attr, char *buf) 76eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti{ 77eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti struct pps_device *pps = dev_get_drvdata(dev); 78eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti 79eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti return sprintf(buf, "%s\n", pps->info.name); 80eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti} 81eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti 82eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giomettistatic ssize_t pps_show_path(struct device *dev, 83eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti struct device_attribute *attr, char *buf) 84eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti{ 85eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti struct pps_device *pps = dev_get_drvdata(dev); 86eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti 87eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti return sprintf(buf, "%s\n", pps->info.path); 88eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti} 89eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti 90eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giomettistruct device_attribute pps_attrs[] = { 91eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti __ATTR(assert, S_IRUGO, pps_show_assert, NULL), 92eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti __ATTR(clear, S_IRUGO, pps_show_clear, NULL), 93eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti __ATTR(mode, S_IRUGO, pps_show_mode, NULL), 94eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti __ATTR(echo, S_IRUGO, pps_show_echo, NULL), 95eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti __ATTR(name, S_IRUGO, pps_show_name, NULL), 96eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti __ATTR(path, S_IRUGO, pps_show_path, NULL), 97eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti __ATTR_NULL, 98eae9d2ba0cfc27a2ad9765f23efb98fb80d80234Rodolfo Giometti}; 99