diff options
Diffstat (limited to 'drivers/staging/unisys/visorbus/vbusdeviceinfo.h')
-rw-r--r-- | drivers/staging/unisys/visorbus/vbusdeviceinfo.h | 213 |
1 files changed, 0 insertions, 213 deletions
diff --git a/drivers/staging/unisys/visorbus/vbusdeviceinfo.h b/drivers/staging/unisys/visorbus/vbusdeviceinfo.h deleted file mode 100644 index abdab4ad0b36..000000000000 --- a/drivers/staging/unisys/visorbus/vbusdeviceinfo.h +++ /dev/null @@ -1,213 +0,0 @@ -/* Copyright (C) 2010 - 2015 UNISYS CORPORATION - * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. - */ - -#ifndef __VBUSDEVICEINFO_H__ -#define __VBUSDEVICEINFO_H__ - -#include <linux/types.h> - -#pragma pack(push, 1) /* both GCC and VC now allow this pragma */ - -/* An array of this struct is present in the channel area for each vbus. - * (See vbuschannel.h.) - * It is filled in by the client side to provide info about the device - * and driver from the client's perspective. - */ -struct ultra_vbus_deviceinfo { - u8 devtype[16]; /* short string identifying the device type */ - u8 drvname[16]; /* driver .sys file name */ - u8 infostrs[96]; /* sequence of tab-delimited id strings: */ - /* <DRIVER_REV> <DRIVER_VERTAG> <DRIVER_COMPILETIME> */ - u8 reserved[128]; /* pad size to 256 bytes */ -}; - -#pragma pack(pop) - -/* Reads chars from the buffer at <src> for <srcmax> bytes, and writes to - * the buffer at <p>, which is <remain> bytes long, ensuring never to - * overflow the buffer at <p>, using the following rules: - * - printable characters are simply copied from the buffer at <src> to the - * buffer at <p> - * - intervening streaks of non-printable characters in the buffer at <src> - * are replaced with a single space in the buffer at <p> - * Note that we pay no attention to '\0'-termination. - * Returns the number of bytes written to <p>. - * - * Pass <p> == NULL and <remain> == 0 for this special behavior. In this - * case, we simply return the number of bytes that WOULD HAVE been written - * to a buffer at <p>, had it been infinitely big. - */ -static inline int -vbuschannel_sanitize_buffer(char *p, int remain, char *src, int srcmax) -{ - int chars = 0; - int nonprintable_streak = 0; - - while (srcmax > 0) { - if ((*src >= ' ') && (*src < 0x7f)) { - if (nonprintable_streak) { - if (remain > 0) { - *p = ' '; - p++; - remain--; - chars++; - } else if (!p) { - chars++; - } - nonprintable_streak = 0; - } - if (remain > 0) { - *p = *src; - p++; - remain--; - chars++; - } else if (!p) { - chars++; - } - } else { - nonprintable_streak = 1; - } - src++; - srcmax--; - } - return chars; -} - -#define VBUSCHANNEL_ADDACHAR(ch, p, remain, chars) \ - do { \ - if (remain <= 0) \ - break; \ - *p = ch; \ - p++; chars++; remain--; \ - } while (0) - -/* Converts the non-negative value at <num> to an ascii decimal string - * at <p>, writing at most <remain> bytes. Note there is NO '\0' termination - * written to <p>. - * - * Returns the number of bytes written to <p>. - * - * Note that we create this function because we need to do this operation in - * an environment-independent way (since we are in a common header file). - */ -static inline int -vbuschannel_itoa(char *p, int remain, int num) -{ - int digits = 0; - char s[32]; - int i; - - if (num == 0) { - /* '0' is a special case */ - if (remain <= 0) - return 0; - *p = '0'; - return 1; - } - /* form a backwards decimal ascii string in <s> */ - while (num > 0) { - if (digits >= (int)sizeof(s)) - return 0; - s[digits++] = (num % 10) + '0'; - num = num / 10; - } - if (remain < digits) { - /* not enough room left at <p> to hold number, so fill with - * '?' - */ - for (i = 0; i < remain; i++, p++) - *p = '?'; - return remain; - } - /* plug in the decimal ascii string representing the number, by */ - /* reversing the string we just built in <s> */ - i = digits; - while (i > 0) { - i--; - *p = s[i]; - p++; - } - return digits; -} - -/* Reads <devInfo>, and converts its contents to a printable string at <p>, - * writing at most <remain> bytes. Note there is NO '\0' termination - * written to <p>. - * - * Pass <devix> >= 0 if you want a device index presented. - * - * Returns the number of bytes written to <p>. - */ -static inline int -vbuschannel_devinfo_to_string(struct ultra_vbus_deviceinfo *devinfo, - char *p, int remain, int devix) -{ - char *psrc; - int nsrc, x, i, pad; - int chars = 0; - - psrc = &devinfo->devtype[0]; - nsrc = sizeof(devinfo->devtype); - if (vbuschannel_sanitize_buffer(NULL, 0, psrc, nsrc) <= 0) - return 0; - - /* emit device index */ - if (devix >= 0) { - VBUSCHANNEL_ADDACHAR('[', p, remain, chars); - x = vbuschannel_itoa(p, remain, devix); - p += x; - remain -= x; - chars += x; - VBUSCHANNEL_ADDACHAR(']', p, remain, chars); - } else { - VBUSCHANNEL_ADDACHAR(' ', p, remain, chars); - VBUSCHANNEL_ADDACHAR(' ', p, remain, chars); - VBUSCHANNEL_ADDACHAR(' ', p, remain, chars); - } - - /* emit device type */ - x = vbuschannel_sanitize_buffer(p, remain, psrc, nsrc); - p += x; - remain -= x; - chars += x; - pad = 15 - x; /* pad device type to be exactly 15 chars */ - for (i = 0; i < pad; i++) - VBUSCHANNEL_ADDACHAR(' ', p, remain, chars); - VBUSCHANNEL_ADDACHAR(' ', p, remain, chars); - - /* emit driver name */ - psrc = &devinfo->drvname[0]; - nsrc = sizeof(devinfo->drvname); - x = vbuschannel_sanitize_buffer(p, remain, psrc, nsrc); - p += x; - remain -= x; - chars += x; - pad = 15 - x; /* pad driver name to be exactly 15 chars */ - for (i = 0; i < pad; i++) - VBUSCHANNEL_ADDACHAR(' ', p, remain, chars); - VBUSCHANNEL_ADDACHAR(' ', p, remain, chars); - - /* emit strings */ - psrc = &devinfo->infostrs[0]; - nsrc = sizeof(devinfo->infostrs); - x = vbuschannel_sanitize_buffer(p, remain, psrc, nsrc); - p += x; - remain -= x; - chars += x; - VBUSCHANNEL_ADDACHAR('\n', p, remain, chars); - - return chars; -} - -#endif |