/* * Copyright 2004 Digi International (www.digi.com) * Scott H Kilau * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR * PURPOSE. See the GNU General Public License for more details. * */ #include "dgrp_common.h" #include #include #include #include #include #include #include #define PORTSERVER_DIVIDEND 1843200 #define SERIAL_TYPE_NORMAL 1 #define SERIAL_TYPE_CALLOUT 2 #define SERIAL_TYPE_XPRINT 3 static struct class *dgrp_class; static struct device *dgrp_class_nodes_dev; static struct device *dgrp_class_global_settings_dev; static ssize_t dgrp_class_version_show(struct class *class, struct class_attribute *attr, char *buf) { return snprintf(buf, PAGE_SIZE, "%s\n", DIGI_VERSION); } static CLASS_ATTR(driver_version, 0400, dgrp_class_version_show, NULL); static ssize_t dgrp_class_register_with_sysfs_show(struct device *c, struct device_attribute *attr, char *buf) { return snprintf(buf, PAGE_SIZE, "1\n"); } static DEVICE_ATTR(register_with_sysfs, 0400, dgrp_class_register_with_sysfs_show, NULL); static ssize_t dgrp_class_pollrate_show(struct device *c, struct device_attribute *attr, char *buf) { return snprintf(buf, PAGE_SIZE, "%d\n", dgrp_poll_tick); } static ssize_t dgrp_class_pollrate_store(struct device *c, struct device_attribute *attr, const char *buf, size_t count) { sscanf(buf, "0x%x\n", &dgrp_poll_tick); return count; } static DEVICE_ATTR(pollrate, 0600, dgrp_class_pollrate_show, dgrp_class_pollrate_store); static struct attribute *dgrp_sysfs_global_settings_entries[] = { &dev_attr_pollrate.attr, &dev_attr_register_with_sysfs.attr, NULL }; static struct attribute_group dgrp_global_settings_attribute_group = { .name = NULL, .attrs = dgrp_sysfs_global_settings_entries, }; int dgrp_create_class_sysfs_files(void) { int ret = 0; int max_majors = 1U << (32 - MINORBITS); dgrp_class = class_create(THIS_MODULE, "digi_realport"); if (IS_ERR(dgrp_class)) return PTR_ERR(dgrp_class); ret = class_create_file(dgrp_class, &class_attr_driver_version); if (ret) goto err_class; dgrp_class_global_settings_dev = device_create(dgrp_class, NULL, MKDEV(0, max_majors + 1), NULL, "driver_settings"); if (IS_ERR(dgrp_class_global_settings_dev)) { ret = PTR_ERR(dgrp_class_global_settings_dev); goto err_file; } ret = sysfs_create_group(&dgrp_class_global_settings_dev->kobj, &dgrp_global_settings_attribute_group); if (ret) { pr_alert("%s: failed to create sysfs global settings device attributes.\n", __func__); goto err_dev1; } dgrp_class_nodes_dev = device_create(dgrp_class, NULL, MKDEV(0, max_majors + 2), NULL, "nodes"); if (IS_ERR(dgrp_class_nodes_dev)) { ret = PTR_ERR(dgrp_class_nodes_dev); goto err_group; } return 0; err_group: sysfs_remove_group(&dgrp_class_global_settings_dev->kobj, &dgrp_global_settings_attribute_group); err_dev1: device_destroy(dgrp_class, MKDEV(0, max_majors + 1)); err_file: class_remove_file(dgrp_class, &class_attr_driver_version); err_class: class_destroy(dgrp_class); return ret; } void dgrp_remove_class_sysfs_files(void) { struct nd_struct *nd; int max_majors = 1U << (32 - MINORBITS); list_for_each_entry(nd, &nd_struct_list, list) dgrp_remove_node_class_sysfs_files(nd); sysfs_remove_group(&dgrp_class_global_settings_dev->kobj, &dgrp_global_settings_attribute_group); class_remove_file(dgrp_class, &class_attr_driver_version); device_destroy(dgrp_class, MKDEV(0, max_majors + 1)); device_destroy(dgrp_class, MKDEV(0, max_majors + 2)); class_destroy(dgrp_class); } static ssize_t dgrp_node_state_show(struct device *c, struct device_attribute *attr, char *buf) { struct nd_struct *nd; if (!c) return 0; nd = (struct nd_struct *) dev_get_drvdata(c); if (!nd) return 0; return snprintf(buf, PAGE_SIZE, "%s\n", ND_STATE_STR(nd->nd_state)); } static DEVICE_ATTR(state, 0600, dgrp_node_state_show, NULL); static ssize_t dgrp_node_description_show(struct device *c, struct device_attribute *attr, char *buf) { struct nd_struct *nd; if (!c) return 0; nd = (struct nd_struct *) dev_get_drvdata(c); if (!nd) return 0; if (nd->nd_state == NS_READY) return snprintf(buf, PAGE_SIZE, "%s\n", nd->nd_ps_desc); return 0; } static DEVICE_ATTR(description_info, 0600, dgrp_node_description_show, NULL); static ssize_t dgrp_node_hw_version_show(struct device *c, struct device_attribute *attr, char *buf) { struct nd_struct *nd; if (!c) return 0; nd = (struct nd_struct *) dev_get_drvdata(c); if (!nd) return 0; if (nd->nd_state == NS_READY) return snprintf(buf, PAGE_SIZE, "%d.%d\n", (nd->nd_hw_ver >> 8) & 0xff, nd->nd_hw_ver & 0xff); return 0; } static DEVICE_ATTR(hw_version_info, 0600, dgrp_node_hw_version_show, NULL); static ssize_t dgrp_node_hw_id_show(struct device *c, struct device_attribute *attr, char *buf) { struct nd_struct *nd; if (!c) return 0; nd = (struct nd_struct *) dev_get_drvdata(c); if (!nd) return 0; if (nd->nd_state == NS_READY) return snprintf(buf, PAGE_SIZE, "%d\n", nd->nd_hw_id); return 0; } static DEVICE_ATTR(hw_id_info, 0600, dgrp_node_hw_id_show, NULL); static ssize_t dgrp_node_sw_version_show(struct device *c, struct device_attribute *attr, char *buf) { struct nd_struct *nd; if (!c) return 0; nd = (struct nd_struct *) dev_get_drvdata(c); if (!nd) return 0; if (nd->nd_state == NS_READY) return snprintf(buf, PAGE_SIZE, "%d.%d\n", (nd->nd_sw_ver >> 8) & 0xff, nd->nd_sw_ver & 0xff); return 0; } static DEVICE_ATTR(sw_version_info, 0600, dgrp_node_sw_version_show, NULL); static struct attribute *dgrp_sysfs_node_entries[] = { &dev_attr_state.attr, &dev_attr_description_info.attr, &dev_attr_hw_version_info.attr, &dev_attr_hw_id_info.attr, &dev_attr_sw_version_info.attr, NULL }; static struct attribute_group dgrp_node_attribute_group = { .name = NULL, .attrs = dgrp_sysfs_node_entries, }; void dgrp_create_node_class_sysfs_files(struct nd_struct *nd) { int ret; char name[10]; if (nd->nd_ID) ID_TO_CHAR(nd->nd_ID, name); else sprintf(name, "node%ld", nd->nd_major); nd->nd_class_dev = device_create(dgrp_class, dgrp_class_nodes_dev, MKDEV(0, nd->nd_major), NULL, name); ret = sysfs_create_group(&nd->nd_class_dev->kobj, &dgrp_node_attribute_group); if (ret) { pr_alert("%s: failed to create sysfs node device attributes.\n", __func__); sysfs_remove_group(&nd->nd_class_dev->kobj, &dgrp_node_attribute_group); return; } dev_set_drvdata(nd->nd_class_dev, nd); } void dgrp_remove_node_class_sysfs_files(struct nd_struct *nd) { if (nd->nd_class_dev) { sysfs_remove_group(&nd->nd_class_dev->kobj, &dgrp_node_attribute_group); device_destroy(dgrp_class, MKDEV(0, nd->nd_major)); nd->nd_class_dev = NULL; } } static ssize_t dgrp_tty_state_show(struct device *d, struct device_attribute *attr, char *buf) { struct un_struct *un; if (!d) return 0; un = (struct un_struct *) dev_get_drvdata(d); if (!un) return 0; return snprintf(buf, PAGE_SIZE, "%s\n", un->un_open_count ? "Open" : "Closed"); } static DEVICE_ATTR(state_info, 0600, dgrp_tty_state_show, NULL); static ssize_t dgrp_tty_baud_show(struct device *d, struct device_attribute *attr, char *buf) { struct ch_struct *ch; struct un_struct *un; if (!d) return 0; un = (struct un_struct *) dev_get_drvdata(d); if (!un) return 0; ch = un->un_ch; if (!ch) return 0; return snprintf(buf, PAGE_SIZE, "%d\n", un->un_open_count ? (PORTSERVER_DIVIDEND / ch->ch_s_brate) : 0); } static DEVICE_ATTR(baud_info, 0400, dgrp_tty_baud_show, NULL); static ssize_t dgrp_tty_msignals_show(struct device *d, struct device_attribute *attr, char *buf) { struct ch_struct *ch; struct un_struct *un; if (!d) return 0; un = (struct un_struct *) dev_get_drvdata(d); if (!un) return 0; ch = un->un_ch; if (!ch) return 0; if (ch->ch_open_count) { return snprintf(buf, PAGE_SIZE, "%s %s %s %s %s %s\n", (ch->ch_s_mlast & DM_RTS) ? "RTS" : "", (ch->ch_s_mlast & DM_CTS) ? "CTS" : "", (ch->ch_s_mlast & DM_DTR) ? "DTR" : "", (ch->ch_s_mlast & DM_DSR) ? "DSR" : "", (ch->ch_s_mlast & DM_CD) ? "DCD" : "", (ch->ch_s_mlast & DM_RI) ? "RI" : ""); } return 0; } static DEVICE_ATTR(msignals_info, 0400, dgrp_tty_msignals_show, NULL); static ssize_t dgrp_tty_iflag_show(struct device *d, struct device_attribute *attr, char *buf) { struct ch_struct *ch; struct un_struct *un; if (!d) return 0; un = (struct un_struct *) dev_get_drvdata(d); if (!un) return 0; ch = un->un_ch; if (!ch) return 0; return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_s_iflag); } static DEVICE_ATTR(iflag_info, 0600, dgrp_tty_iflag_show, NULL); static ssize_t dgrp_tty_cflag_show(struct device *d, struct device_attribute *attr, char *buf) { struct ch_struct *ch; struct un_struct *un; if (!d) return 0; un = (struct un_struct *) dev_get_drvdata(d); if (!un) return 0; ch = un->un_ch; if (!ch) return 0; return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_s_cflag); } static DEVICE_ATTR(cflag_info, 0600, dgrp_tty_cflag_show, NULL); static ssize_t dgrp_tty_oflag_show(struct device *d, struct device_attribute *attr, char *buf) { struct ch_struct *ch; struct un_struct *un; if (!d) return 0; un = (struct un_struct *) dev_get_drvdata(d); if (!un) return 0; ch = un->un_ch; if (!ch) return 0; return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_s_oflag); } static DEVICE_ATTR(oflag_info, 0600, dgrp_tty_oflag_show, NULL); static ssize_t dgrp_tty_digi_flag_show(struct device *d, struct device_attribute *attr, char *buf) { struct ch_struct *ch; struct un_struct *un; if (!d) return 0; un = (struct un_struct *) dev_get_drvdata(d); if (!un) return 0; ch = un->un_ch; if (!ch) return 0; return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_digi.digi_flags); } static DEVICE_ATTR(digi_flag_info, 0600, dgrp_tty_digi_flag_show, NULL); static ssize_t dgrp_tty_rxcount_show(struct device *d, struct device_attribute *attr, char *buf) { struct ch_struct *ch; struct un_struct *un; if (!d) return 0; un = (struct un_struct *) dev_get_drvdata(d); if (!un) return 0; ch = un->un_ch; if (!ch) return 0; return snprintf(buf, PAGE_SIZE, "%d\n", ch->ch_rxcount); } static DEVICE_ATTR(rxcount_info, 0600, dgrp_tty_rxcount_show, NULL); static ssize_t dgrp_tty_txcount_show(struct device *d, struct device_attribute *attr, char *buf) { struct ch_struct *ch; struct un_struct *un; if (!d) return 0; un = (struct un_struct *) dev_get_drvdata(d); if (!un) return 0; ch = un->un_ch; if (!ch) return 0; return snprintf(buf, PAGE_SIZE, "%d\n", ch->ch_txcount); } static DEVICE_ATTR(txcount_info, 0600, dgrp_tty_txcount_show, NULL); static ssize_t dgrp_tty_name_show(struct device *d, struct device_attribute *attr, char *buf) { struct nd_struct *nd; struct ch_struct *ch; struct un_struct *un; char name[10]; if (!d) return 0; un = (struct un_struct *) dev_get_drvdata(d); if (!un) return 0; ch = un->un_ch; if (!ch) return 0; nd = ch->ch_nd; if (!nd) return 0; ID_TO_CHAR(nd->nd_ID, name); return snprintf(buf, PAGE_SIZE, "%s%s%02d\n", un->un_type == SERIAL_TYPE_XPRINT ? "pr" : "tty", name, ch->ch_portnum); } static DEVICE_ATTR(custom_name, 0600, dgrp_tty_name_show, NULL); static struct attribute *dgrp_sysfs_tty_entries[] = { &dev_attr_state_info.attr, &dev_attr_baud_info.attr, &dev_attr_msignals_info.attr, &dev_attr_iflag_info.attr, &dev_attr_cflag_info.attr, &dev_attr_oflag_info.attr, &dev_attr_digi_flag_info.attr, &dev_attr_rxcount_info.attr, &dev_attr_txcount_info.attr, &dev_attr_custom_name.attr, NULL }; static struct attribute_group dgrp_tty_attribute_group = { .name = NULL, .attrs = dgrp_sysfs_tty_entries, }; void dgrp_create_tty_sysfs(struct un_struct *un, struct device *c) { int ret; ret = sysfs_create_group(&c->kobj, &dgrp_tty_attribute_group); if (ret) { pr_alert("%s: failed to create sysfs tty device attributes.\n", __func__); sysfs_remove_group(&c->kobj, &dgrp_tty_attribute_group); return; } dev_set_drvdata(c, un); } void dgrp_remove_tty_sysfs(struct device *c) { sysfs_remove_group(&c->kobj, &dgrp_tty_attribute_group); }