diff options
Diffstat (limited to 'drivers/staging/dgap/dgap_sysfs.c')
| -rw-r--r-- | drivers/staging/dgap/dgap_sysfs.c | 793 |
1 files changed, 793 insertions, 0 deletions
diff --git a/drivers/staging/dgap/dgap_sysfs.c b/drivers/staging/dgap/dgap_sysfs.c new file mode 100644 index 000000000000..94da06fcf7e9 --- /dev/null +++ b/drivers/staging/dgap/dgap_sysfs.c @@ -0,0 +1,793 @@ +/* + * Copyright 2004 Digi International (www.digi.com) + * Scott H Kilau <Scott_Kilau at digi dot com> + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * + * NOTE TO LINUX KERNEL HACKERS: DO NOT REFORMAT THIS CODE! + * + * This is shared code between Digi's CVS archive and the + * Linux Kernel sources. + * Changing the source just for reformatting needlessly breaks + * our CVS diff history. + * + * Send any bug fixes/changes to: Eng.Linux at digi dot com. + * Thank you. + * + * + * + * $Id: dgap_sysfs.c,v 1.1 2009/10/23 14:01:57 markh Exp $ + */ + + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/ctype.h> +#include <linux/string.h> +#include <linux/serial_reg.h> +#include <linux/device.h> +#include <linux/pci.h> +#include <linux/kdev_t.h> + +#include "dgap_driver.h" +#include "dgap_conf.h" +#include "dgap_parse.h" + + +static ssize_t dgap_driver_version_show(struct device_driver *ddp, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%s\n", DG_PART); +} +static DRIVER_ATTR(version, S_IRUSR, dgap_driver_version_show, NULL); + + +static ssize_t dgap_driver_boards_show(struct device_driver *ddp, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", dgap_NumBoards); +} +static DRIVER_ATTR(boards, S_IRUSR, dgap_driver_boards_show, NULL); + + +static ssize_t dgap_driver_maxboards_show(struct device_driver *ddp, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", MAXBOARDS); +} +static DRIVER_ATTR(maxboards, S_IRUSR, dgap_driver_maxboards_show, NULL); + + +static ssize_t dgap_driver_pollcounter_show(struct device_driver *ddp, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%ld\n", dgap_poll_counter); +} +static DRIVER_ATTR(pollcounter, S_IRUSR, dgap_driver_pollcounter_show, NULL); + + +static ssize_t dgap_driver_state_show(struct device_driver *ddp, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%s\n", dgap_driver_state_text[dgap_driver_state]); +} +static DRIVER_ATTR(state, S_IRUSR, dgap_driver_state_show, NULL); + + +static ssize_t dgap_driver_debug_show(struct device_driver *ddp, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "0x%x\n", dgap_debug); +} + +static ssize_t dgap_driver_debug_store(struct device_driver *ddp, const char *buf, size_t count) +{ + sscanf(buf, "0x%x\n", &dgap_debug); + return count; +} +static DRIVER_ATTR(debug, (S_IRUSR | S_IWUSR), dgap_driver_debug_show, dgap_driver_debug_store); + + +static ssize_t dgap_driver_rawreadok_show(struct device_driver *ddp, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "0x%x\n", dgap_rawreadok); +} + +static ssize_t dgap_driver_rawreadok_store(struct device_driver *ddp, const char *buf, size_t count) +{ + sscanf(buf, "0x%x\n", &dgap_rawreadok); + return count; +} +static DRIVER_ATTR(rawreadok, (S_IRUSR | S_IWUSR), dgap_driver_rawreadok_show, dgap_driver_rawreadok_store); + + +static ssize_t dgap_driver_pollrate_show(struct device_driver *ddp, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%dms\n", dgap_poll_tick); +} + +static ssize_t dgap_driver_pollrate_store(struct device_driver *ddp, const char *buf, size_t count) +{ + sscanf(buf, "%d\n", &dgap_poll_tick); + return count; +} +static DRIVER_ATTR(pollrate, (S_IRUSR | S_IWUSR), dgap_driver_pollrate_show, dgap_driver_pollrate_store); + + +void dgap_create_driver_sysfiles(struct pci_driver *dgap_driver) +{ + int rc = 0; + struct device_driver *driverfs = &dgap_driver->driver; + + rc |= driver_create_file(driverfs, &driver_attr_version); + rc |= driver_create_file(driverfs, &driver_attr_boards); + rc |= driver_create_file(driverfs, &driver_attr_maxboards); + rc |= driver_create_file(driverfs, &driver_attr_debug); + rc |= driver_create_file(driverfs, &driver_attr_rawreadok); + rc |= driver_create_file(driverfs, &driver_attr_pollrate); + rc |= driver_create_file(driverfs, &driver_attr_pollcounter); + rc |= driver_create_file(driverfs, &driver_attr_state); + if (rc) { + printk(KERN_ERR "DGAP: sysfs driver_create_file failed!\n"); + } +} + + +void dgap_remove_driver_sysfiles(struct pci_driver *dgap_driver) +{ + struct device_driver *driverfs = &dgap_driver->driver; + driver_remove_file(driverfs, &driver_attr_version); + driver_remove_file(driverfs, &driver_attr_boards); + driver_remove_file(driverfs, &driver_attr_maxboards); + driver_remove_file(driverfs, &driver_attr_debug); + driver_remove_file(driverfs, &driver_attr_rawreadok); + driver_remove_file(driverfs, &driver_attr_pollrate); + driver_remove_file(driverfs, &driver_attr_pollcounter); + driver_remove_file(driverfs, &driver_attr_state); +} + + +#define DGAP_VERIFY_BOARD(p, bd) \ + if (!p) \ + return (0); \ + \ + bd = dev_get_drvdata(p); \ + if (!bd || bd->magic != DGAP_BOARD_MAGIC) \ + return (0); \ + if (bd->state != BOARD_READY) \ + return (0); \ + + +static ssize_t dgap_ports_state_show(struct device *p, struct device_attribute *attr, char *buf) +{ + struct board_t *bd; + int count = 0; + int i = 0; + + DGAP_VERIFY_BOARD(p, bd); + + for (i = 0; i < bd->nasync; i++) { + count += snprintf(buf + count, PAGE_SIZE - count, + "%d %s\n", bd->channels[i]->ch_portnum, + bd->channels[i]->ch_open_count ? "Open" : "Closed"); + } + return count; +} +static DEVICE_ATTR(ports_state, S_IRUSR, dgap_ports_state_show, NULL); + + +static ssize_t dgap_ports_baud_show(struct device *p, struct device_attribute *attr, char *buf) +{ + struct board_t *bd; + int count = 0; + int i = 0; + + DGAP_VERIFY_BOARD(p, bd); + + for (i = 0; i < bd->nasync; i++) { + count += snprintf(buf + count, PAGE_SIZE - count, + "%d %d\n", bd->channels[i]->ch_portnum, bd->channels[i]->ch_baud_info); + } + return count; +} +static DEVICE_ATTR(ports_baud, S_IRUSR, dgap_ports_baud_show, NULL); + + +static ssize_t dgap_ports_msignals_show(struct device *p, struct device_attribute *attr, char *buf) +{ + struct board_t *bd; + int count = 0; + int i = 0; + + DGAP_VERIFY_BOARD(p, bd); + + for (i = 0; i < bd->nasync; i++) { + if (bd->channels[i]->ch_open_count) { + count += snprintf(buf + count, PAGE_SIZE - count, + "%d %s %s %s %s %s %s\n", bd->channels[i]->ch_portnum, + (bd->channels[i]->ch_mostat & UART_MCR_RTS) ? "RTS" : "", + (bd->channels[i]->ch_mistat & UART_MSR_CTS) ? "CTS" : "", + (bd->channels[i]->ch_mostat & UART_MCR_DTR) ? "DTR" : "", + (bd->channels[i]->ch_mistat & UART_MSR_DSR) ? "DSR" : "", + (bd->channels[i]->ch_mistat & UART_MSR_DCD) ? "DCD" : "", + (bd->channels[i]->ch_mistat & UART_MSR_RI) ? "RI" : ""); + } else { + count += snprintf(buf + count, PAGE_SIZE - count, + "%d\n", bd->channels[i]->ch_portnum); + } + } + return count; +} +static DEVICE_ATTR(ports_msignals, S_IRUSR, dgap_ports_msignals_show, NULL); + + +static ssize_t dgap_ports_iflag_show(struct device *p, struct device_attribute *attr, char *buf) +{ + struct board_t *bd; + int count = 0; + int i = 0; + + DGAP_VERIFY_BOARD(p, bd); + + for (i = 0; i < bd->nasync; i++) { + count += snprintf(buf + count, PAGE_SIZE - count, "%d %x\n", + bd->channels[i]->ch_portnum, bd->channels[i]->ch_c_iflag); + } + return count; +} +static DEVICE_ATTR(ports_iflag, S_IRUSR, dgap_ports_iflag_show, NULL); + + +static ssize_t dgap_ports_cflag_show(struct device *p, struct device_attribute *attr, char *buf) +{ + struct board_t *bd; + int count = 0; + int i = 0; + + DGAP_VERIFY_BOARD(p, bd); + + for (i = 0; i < bd->nasync; i++) { + count += snprintf(buf + count, PAGE_SIZE - count, "%d %x\n", + bd->channels[i]->ch_portnum, bd->channels[i]->ch_c_cflag); + } + return count; +} +static DEVICE_ATTR(ports_cflag, S_IRUSR, dgap_ports_cflag_show, NULL); + + +static ssize_t dgap_ports_oflag_show(struct device *p, struct device_attribute *attr, char *buf) +{ + struct board_t *bd; + int count = 0; + int i = 0; + + DGAP_VERIFY_BOARD(p, bd); + + for (i = 0; i < bd->nasync; i++) { + count += snprintf(buf + count, PAGE_SIZE - count, "%d %x\n", + bd->channels[i]->ch_portnum, bd->channels[i]->ch_c_oflag); + } + return count; +} +static DEVICE_ATTR(ports_oflag, S_IRUSR, dgap_ports_oflag_show, NULL); + + +static ssize_t dgap_ports_lflag_show(struct device *p, struct device_attribute *attr, char *buf) +{ + struct board_t *bd; + int count = 0; + int i = 0; + + DGAP_VERIFY_BOARD(p, bd); + + for (i = 0; i < bd->nasync; i++) { + count += snprintf(buf + count, PAGE_SIZE - count, "%d %x\n", + bd->channels[i]->ch_portnum, bd->channels[i]->ch_c_lflag); + } + return count; +} +static DEVICE_ATTR(ports_lflag, S_IRUSR, dgap_ports_lflag_show, NULL); + + +static ssize_t dgap_ports_digi_flag_show(struct device *p, struct device_attribute *attr, char *buf) +{ + struct board_t *bd; + int count = 0; + int i = 0; + + DGAP_VERIFY_BOARD(p, bd); + + for (i = 0; i < bd->nasync; i++) { + count += snprintf(buf + count, PAGE_SIZE - count, "%d %x\n", + bd->channels[i]->ch_portnum, bd->channels[i]->ch_digi.digi_flags); + } + return count; +} +static DEVICE_ATTR(ports_digi_flag, S_IRUSR, dgap_ports_digi_flag_show, NULL); + + +static ssize_t dgap_ports_rxcount_show(struct device *p, struct device_attribute *attr, char *buf) +{ + struct board_t *bd; + int count = 0; + int i = 0; + + DGAP_VERIFY_BOARD(p, bd); + + for (i = 0; i < bd->nasync; i++) { + count += snprintf(buf + count, PAGE_SIZE - count, "%d %ld\n", + bd->channels[i]->ch_portnum, bd->channels[i]->ch_rxcount); + } + return count; +} +static DEVICE_ATTR(ports_rxcount, S_IRUSR, dgap_ports_rxcount_show, NULL); + + +static ssize_t dgap_ports_txcount_show(struct device *p, struct device_attribute *attr, char *buf) +{ + struct board_t *bd; + int count = 0; + int i = 0; + + DGAP_VERIFY_BOARD(p, bd); + + for (i = 0; i < bd->nasync; i++) { + count += snprintf(buf + count, PAGE_SIZE - count, "%d %ld\n", + bd->channels[i]->ch_portnum, bd->channels[i]->ch_txcount); + } + return count; +} +static DEVICE_ATTR(ports_txcount, S_IRUSR, dgap_ports_txcount_show, NULL); + + +/* this function creates the sys files that will export each signal status + * to sysfs each value will be put in a separate filename + */ +void dgap_create_ports_sysfiles(struct board_t *bd) +{ + int rc = 0; + + dev_set_drvdata(&bd->pdev->dev, bd); + rc |= device_create_file(&(bd->pdev->dev), &dev_attr_ports_state); + rc |= device_create_file(&(bd->pdev->dev), &dev_attr_ports_baud); + rc |= device_create_file(&(bd->pdev->dev), &dev_attr_ports_msignals); + rc |= device_create_file(&(bd->pdev->dev), &dev_attr_ports_iflag); + rc |= device_create_file(&(bd->pdev->dev), &dev_attr_ports_cflag); + rc |= device_create_file(&(bd->pdev->dev), &dev_attr_ports_oflag); + rc |= device_create_file(&(bd->pdev->dev), &dev_attr_ports_lflag); + rc |= device_create_file(&(bd->pdev->dev), &dev_attr_ports_digi_flag); + rc |= device_create_file(&(bd->pdev->dev), &dev_attr_ports_rxcount); + rc |= device_create_file(&(bd->pdev->dev), &dev_attr_ports_txcount); + if (rc) { + printk(KERN_ERR "DGAP: sysfs device_create_file failed!\n"); + } +} + + +/* removes all the sys files created for that port */ +void dgap_remove_ports_sysfiles(struct board_t *bd) +{ + device_remove_file(&(bd->pdev->dev), &dev_attr_ports_state); + device_remove_file(&(bd->pdev->dev), &dev_attr_ports_baud); + device_remove_file(&(bd->pdev->dev), &dev_attr_ports_msignals); + device_remove_file(&(bd->pdev->dev), &dev_attr_ports_iflag); + device_remove_file(&(bd->pdev->dev), &dev_attr_ports_cflag); + device_remove_file(&(bd->pdev->dev), &dev_attr_ports_oflag); + device_remove_file(&(bd->pdev->dev), &dev_attr_ports_lflag); + device_remove_file(&(bd->pdev->dev), &dev_attr_ports_digi_flag); + device_remove_file(&(bd->pdev->dev), &dev_attr_ports_rxcount); + device_remove_file(&(bd->pdev->dev), &dev_attr_ports_txcount); +} + + +static ssize_t dgap_tty_state_show(struct device *d, struct device_attribute *attr, char *buf) +{ + struct board_t *bd; + struct channel_t *ch; + struct un_t *un; + + if (!d) + return (0); + un = (struct un_t *) dev_get_drvdata(d); + if (!un || un->magic != DGAP_UNIT_MAGIC) + return (0); + ch = un->un_ch; + if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) + return (0); + bd = ch->ch_bd; + if (!bd || bd->magic != DGAP_BOARD_MAGIC) + return (0); + if (bd->state != BOARD_READY) + return (0); + + return snprintf(buf, PAGE_SIZE, "%s", un->un_open_count ? "Open" : "Closed"); +} +static DEVICE_ATTR(state, S_IRUSR, dgap_tty_state_show, NULL); + + +static ssize_t dgap_tty_baud_show(struct device *d, struct device_attribute *attr, char *buf) +{ + struct board_t *bd; + struct channel_t *ch; + struct un_t *un; + + if (!d) + return (0); + un = (struct un_t *) dev_get_drvdata(d); + if (!un || un->magic != DGAP_UNIT_MAGIC) + return (0); + ch = un->un_ch; + if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) + return (0); + bd = ch->ch_bd; + if (!bd || bd->magic != DGAP_BOARD_MAGIC) + return (0); + if (bd->state != BOARD_READY) + return (0); + + return snprintf(buf, PAGE_SIZE, "%d\n", ch->ch_baud_info); +} +static DEVICE_ATTR(baud, S_IRUSR, dgap_tty_baud_show, NULL); + + +static ssize_t dgap_tty_msignals_show(struct device *d, struct device_attribute *attr, char *buf) +{ + struct board_t *bd; + struct channel_t *ch; + struct un_t *un; + + if (!d) + return (0); + un = (struct un_t *) dev_get_drvdata(d); + if (!un || un->magic != DGAP_UNIT_MAGIC) + return (0); + ch = un->un_ch; + if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) + return (0); + bd = ch->ch_bd; + if (!bd || bd->magic != DGAP_BOARD_MAGIC) + return (0); + if (bd->state != BOARD_READY) + return (0); + + if (ch->ch_open_count) { + return snprintf(buf, PAGE_SIZE, "%s %s %s %s %s %s\n", + (ch->ch_mostat & UART_MCR_RTS) ? "RTS" : "", + (ch->ch_mistat & UART_MSR_CTS) ? "CTS" : "", + (ch->ch_mostat & UART_MCR_DTR) ? "DTR" : "", + (ch->ch_mistat & UART_MSR_DSR) ? "DSR" : "", + (ch->ch_mistat & UART_MSR_DCD) ? "DCD" : "", + (ch->ch_mistat & UART_MSR_RI) ? "RI" : ""); + } + return 0; +} +static DEVICE_ATTR(msignals, S_IRUSR, dgap_tty_msignals_show, NULL); + + +static ssize_t dgap_tty_iflag_show(struct device *d, struct device_attribute *attr, char *buf) +{ + struct board_t *bd; + struct channel_t *ch; + struct un_t *un; + + if (!d) + return (0); + un = (struct un_t *) dev_get_drvdata(d); + if (!un || un->magic != DGAP_UNIT_MAGIC) + return (0); + ch = un->un_ch; + if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) + return (0); + bd = ch->ch_bd; + if (!bd || bd->magic != DGAP_BOARD_MAGIC) + return (0); + if (bd->state != BOARD_READY) + return (0); + + return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_c_iflag); +} +static DEVICE_ATTR(iflag, S_IRUSR, dgap_tty_iflag_show, NULL); + + +static ssize_t dgap_tty_cflag_show(struct device *d, struct device_attribute *attr, char *buf) +{ + struct board_t *bd; + struct channel_t *ch; + struct un_t *un; + + if (!d) + return (0); + un = (struct un_t *) dev_get_drvdata(d); + if (!un || un->magic != DGAP_UNIT_MAGIC) + return (0); + ch = un->un_ch; + if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) + return (0); + bd = ch->ch_bd; + if (!bd || bd->magic != DGAP_BOARD_MAGIC) + return (0); + if (bd->state != BOARD_READY) + return (0); + + return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_c_cflag); +} +static DEVICE_ATTR(cflag, S_IRUSR, dgap_tty_cflag_show, NULL); + + +static ssize_t dgap_tty_oflag_show(struct device *d, struct device_attribute *attr, char *buf) +{ + struct board_t *bd; + struct channel_t *ch; + struct un_t *un; + + if (!d) + return (0); + un = (struct un_t *) dev_get_drvdata(d); + if (!un || un->magic != DGAP_UNIT_MAGIC) + return (0); + ch = un->un_ch; + if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) + return (0); + bd = ch->ch_bd; + if (!bd || bd->magic != DGAP_BOARD_MAGIC) + return (0); + if (bd->state != BOARD_READY) + return (0); + + return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_c_oflag); +} +static DEVICE_ATTR(oflag, S_IRUSR, dgap_tty_oflag_show, NULL); + + +static ssize_t dgap_tty_lflag_show(struct device *d, struct device_attribute *attr, char *buf) +{ + struct board_t *bd; + struct channel_t *ch; + struct un_t *un; + + if (!d) + return (0); + un = (struct un_t *) dev_get_drvdata(d); + if (!un || un->magic != DGAP_UNIT_MAGIC) + return (0); + ch = un->un_ch; + if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) + return (0); + bd = ch->ch_bd; + if (!bd || bd->magic != DGAP_BOARD_MAGIC) + return (0); + if (bd->state != BOARD_READY) + return (0); + + return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_c_lflag); +} +static DEVICE_ATTR(lflag, S_IRUSR, dgap_tty_lflag_show, NULL); + + +static ssize_t dgap_tty_digi_flag_show(struct device *d, struct device_attribute *attr, char *buf) +{ + struct board_t *bd; + struct channel_t *ch; + struct un_t *un; + + if (!d) + return (0); + un = (struct un_t *) dev_get_drvdata(d); + if (!un || un->magic != DGAP_UNIT_MAGIC) + return (0); + ch = un->un_ch; + if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) + return (0); + bd = ch->ch_bd; + if (!bd || bd->magic != DGAP_BOARD_MAGIC) + return (0); + if (bd->state != BOARD_READY) + return (0); + + return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_digi.digi_flags); +} +static DEVICE_ATTR(digi_flag, S_IRUSR, dgap_tty_digi_flag_show, NULL); + + +static ssize_t dgap_tty_rxcount_show(struct device *d, struct device_attribute *attr, char *buf) +{ + struct board_t *bd; + struct channel_t *ch; + struct un_t *un; + + if (!d) + return (0); + un = (struct un_t *) dev_get_drvdata(d); + if (!un || un->magic != DGAP_UNIT_MAGIC) + return (0); + ch = un->un_ch; + if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) + return (0); + bd = ch->ch_bd; + if (!bd || bd->magic != DGAP_BOARD_MAGIC) + return (0); + if (bd->state != BOARD_READY) + return (0); + + return snprintf(buf, PAGE_SIZE, "%ld\n", ch->ch_rxcount); +} +static DEVICE_ATTR(rxcount, S_IRUSR, dgap_tty_rxcount_show, NULL); + + +static ssize_t dgap_tty_txcount_show(struct device *d, struct device_attribute *attr, char *buf) +{ + struct board_t *bd; + struct channel_t *ch; + struct un_t *un; + + if (!d) + return (0); + un = (struct un_t *) dev_get_drvdata(d); + if (!un || un->magic != DGAP_UNIT_MAGIC) + return (0); + ch = un->un_ch; + if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) + return (0); + bd = ch->ch_bd; + if (!bd || bd->magic != DGAP_BOARD_MAGIC) + return (0); + if (bd->state != BOARD_READY) + return (0); + + return snprintf(buf, PAGE_SIZE, "%ld\n", ch->ch_txcount); +} +static DEVICE_ATTR(txcount, S_IRUSR, dgap_tty_txcount_show, NULL); + + +static ssize_t dgap_tty_name_show(struct device *d, struct device_attribute *attr, char *buf) +{ + struct board_t *bd; + struct channel_t *ch; + struct un_t *un; + int cn; + int bn; + struct cnode *cptr = NULL; + int found = FALSE; + int ncount = 0; + int starto = 0; + int i = 0; + + if (!d) + return (0); + un = (struct un_t *) dev_get_drvdata(d); + if (!un || un->magic != DGAP_UNIT_MAGIC) + return (0); + ch = un->un_ch; + if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) + return (0); + bd = ch->ch_bd; + if (!bd || bd->magic != DGAP_BOARD_MAGIC) + return (0); + if (bd->state != BOARD_READY) + return (0); + + bn = bd->boardnum; + cn = ch->ch_portnum; + + for (cptr = bd->bd_config; cptr; cptr = cptr->next) { + + if ((cptr->type == BNODE) && + ((cptr->u.board.type == APORT2_920P) || (cptr->u.board.type == APORT4_920P) || + (cptr->u.board.type == APORT8_920P) || (cptr->u.board.type == PAPORT4) || + (cptr->u.board.type == PAPORT8))) { + + found = TRUE; + if (cptr->u.board.v_start) + starto = cptr->u.board.start; + else + starto = 1; + } + + if (cptr->type == TNODE && found == TRUE) { + char *ptr1; + if (strstr(cptr->u.ttyname, "tty")) { + ptr1 = cptr->u.ttyname; + ptr1 += 3; + } + else { + ptr1 = cptr->u.ttyname; + } + + for (i = 0; i < dgap_config_get_number_of_ports(bd); i++) { + if (cn == i) { + return snprintf(buf, PAGE_SIZE, "%s%s%02d\n", + (un->un_type == DGAP_PRINT) ? "pr" : "tty", + ptr1, i + starto); + } + } + } + + if (cptr->type == CNODE) { + + for (i = 0; i < cptr->u.conc.nport; i++) { + if (cn == (i + ncount)) { + + return snprintf(buf, PAGE_SIZE, "%s%s%02d\n", + (un->un_type == DGAP_PRINT) ? "pr" : "tty", + cptr->u.conc.id, + i + (cptr->u.conc.v_start ? cptr->u.conc.start : 1)); + } + } + + ncount += cptr->u.conc.nport; + } + + if (cptr->type == MNODE) { + + for (i = 0; i < cptr->u.module.nport; i++) { + if (cn == (i + ncount)) { + return snprintf(buf, PAGE_SIZE, "%s%s%02d\n", + (un->un_type == DGAP_PRINT) ? "pr" : "tty", + cptr->u.module.id, + i + (cptr->u.module.v_start ? cptr->u.module.start : 1)); + } + } + + ncount += cptr->u.module.nport; + + } + } + + return snprintf(buf, PAGE_SIZE, "%s_dgap_%d_%d\n", + (un->un_type == DGAP_PRINT) ? "pr" : "tty", bn, cn); + +} +static DEVICE_ATTR(custom_name, S_IRUSR, dgap_tty_name_show, NULL); + + +static struct attribute *dgap_sysfs_tty_entries[] = { + &dev_attr_state.attr, + &dev_attr_baud.attr, + &dev_attr_msignals.attr, + &dev_attr_iflag.attr, + &dev_attr_cflag.attr, + &dev_attr_oflag.attr, + &dev_attr_lflag.attr, + &dev_attr_digi_flag.attr, + &dev_attr_rxcount.attr, + &dev_attr_txcount.attr, + &dev_attr_custom_name.attr, + NULL +}; + + +static struct attribute_group dgap_tty_attribute_group = { + .name = NULL, + .attrs = dgap_sysfs_tty_entries, +}; + + + + +void dgap_create_tty_sysfs(struct un_t *un, struct device *c) +{ + int ret; + + ret = sysfs_create_group(&c->kobj, &dgap_tty_attribute_group); + if (ret) { + printk(KERN_ERR "dgap: failed to create sysfs tty device attributes.\n"); + sysfs_remove_group(&c->kobj, &dgap_tty_attribute_group); + return; + } + + dev_set_drvdata(c, un); + +} + + +void dgap_remove_tty_sysfs(struct device *c) +{ + sysfs_remove_group(&c->kobj, &dgap_tty_attribute_group); +} |