drivers/char/rio/rio_linux.h

   1
   2 /*
   3  *  rio_linux.h
   4  *
   5  *  Copyright (C) 1998,1999,2000 R.E.Wolff@BitWizard.nl
   6  *
   7  *      This program is free software; you can redistribute it and/or modify
   8  *      it under the terms of the GNU General Public License as published by
   9  *      the Free Software Foundation; either version 2 of the License, or
  10  *      (at your option) any later version.
  11  *
  12  *      This program is distributed in the hope that it will be useful,
  13  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *      GNU General Public License for more details.
  16  *
  17  *      You should have received a copy of the GNU General Public License
  18  *      along with this program; if not, write to the Free Software
  19  *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  *
  21  *  RIO serial driver.
  22  *
  23  *  Version 1.0 -- July, 1999.
  24  *
  25  */
  26
  27 #define RIO_NBOARDS        4
  28 #define RIO_PORTSPERBOARD 128
  29 #define RIO_NPORTS        (RIO_NBOARDS * RIO_PORTSPERBOARD)
  30
  31 #define MODEM_SUPPORT
  32
  33 #ifdef __KERNEL__
  34
  35 #define RIO_MAGIC 0x12345678
  36
  37
  38 struct vpd_prom {
  39         unsigned short id;
  40         char hwrev;
  41         char hwass;
  42         int uniqid;
  43         char myear;
  44         char mweek;
  45         char hw_feature[5];
  46         char oem_id;
  47         char identifier[16];
  48 };
  49
  50
  51 #define RIO_DEBUG_ALL           0xffffffff
  52
  53 #define O_OTHER(tty)    \
  54       ((O_OLCUC(tty))  ||\
  55       (O_ONLCR(tty))   ||\
  56       (O_OCRNL(tty))   ||\
  57       (O_ONOCR(tty))   ||\
  58       (O_ONLRET(tty))  ||\
  59       (O_OFILL(tty))   ||\
  60       (O_OFDEL(tty))   ||\
  61       (O_NLDLY(tty))   ||\
  62       (O_CRDLY(tty))   ||\
  63       (O_TABDLY(tty))  ||\
  64       (O_BSDLY(tty))   ||\
  65       (O_VTDLY(tty))   ||\
  66       (O_FFDLY(tty)))
  67
  68 /* Same for input. */
  69 #define I_OTHER(tty)    \
  70       ((I_INLCR(tty))  ||\
  71       (I_IGNCR(tty))   ||\
  72       (I_ICRNL(tty))   ||\
  73       (I_IUCLC(tty))   ||\
  74       (L_ISIG(tty)))
  75
  76
  77 #endif                          /* __KERNEL__ */
  78
  79
  80 #define RIO_BOARD_INTR_LOCK  1
  81
  82
  83 #ifndef RIOCTL_MISC_MINOR
  84 /* Allow others to gather this into "major.h" or something like that */
  85 #define RIOCTL_MISC_MINOR    169
  86 #endif
  87
  88
  89 /* Allow us to debug "in the field" without requiring clients to
  90    recompile.... */
  91 #if 1
  92 #define rio_spin_lock_irqsave(sem, flags) do { \
  93         rio_dprintk (RIO_DEBUG_SPINLOCK, "spinlockirqsave: %p %s:%d\n", \
  94                                         sem, __FILE__, __LINE__);\
  95         spin_lock_irqsave(sem, flags);\
  96         } while (0)
  97
  98 #define rio_spin_unlock_irqrestore(sem, flags) do { \
  99         rio_dprintk (RIO_DEBUG_SPINLOCK, "spinunlockirqrestore: %p %s:%d\n",\
 100                                         sem, __FILE__, __LINE__);\
 101         spin_unlock_irqrestore(sem, flags);\
 102         } while (0)
 103
 104 #define rio_spin_lock(sem) do { \
 105         rio_dprintk (RIO_DEBUG_SPINLOCK, "spinlock: %p %s:%d\n",\
 106                                         sem, __FILE__, __LINE__);\
 107         spin_lock(sem);\
 108         } while (0)
 109
 110 #define rio_spin_unlock(sem) do { \
 111         rio_dprintk (RIO_DEBUG_SPINLOCK, "spinunlock: %p %s:%d\n",\
 112                                         sem, __FILE__, __LINE__);\
 113         spin_unlock(sem);\
 114         } while (0)
 115 #else
 116 #define rio_spin_lock_irqsave(sem, flags) \
 117             spin_lock_irqsave(sem, flags)
 118
 119 #define rio_spin_unlock_irqrestore(sem, flags) \
 120             spin_unlock_irqrestore(sem, flags)
 121
 122 #define rio_spin_lock(sem) \
 123             spin_lock(sem)
 124
 125 #define rio_spin_unlock(sem) \
 126             spin_unlock(sem)
 127
 128 #endif
 129
 130
 131
 132 #ifdef CONFIG_RIO_OLDPCI
 133 static inline void __iomem *rio_memcpy_toio(void __iomem *dummy, void __iomem *dest, void *source, int n)
 134 {
 135         char __iomem *dst = dest;
 136         char *src = source;
 137
 138         while (n--) {
 139                 writeb(*src++, dst++);
 140                 (void) readb(dummy);
 141         }
 142
 143         return dest;
 144 }
 145
 146 static inline void __iomem *rio_copy_toio(void __iomem *dest, void *source, int n)
 147 {
 148         char __iomem *dst = dest;
 149         char *src = source;
 150
 151         while (n--)
 152                 writeb(*src++, dst++);
 153
 154         return dest;
 155 }
 156
 157
 158 static inline void *rio_memcpy_fromio(void *dest, void __iomem *source, int n)
 159 {
 160         char *dst = dest;
 161         char __iomem *src = source;
 162
 163         while (n--)
 164                 *dst++ = readb(src++);
 165
 166         return dest;
 167 }
 168
 169 #else
 170 #define rio_memcpy_toio(dummy,dest,source,n)   memcpy_toio(dest, source, n)
 171 #define rio_copy_toio                          memcpy_toio
 172 #define rio_memcpy_fromio                      memcpy_fromio
 173 #endif
 174
 175 #define DEBUG 1
 176
 177
 178 /*
 179    This driver can spew a whole lot of debugging output at you. If you
 180    need maximum performance, you should disable the DEBUG define. To
 181    aid in debugging in the field, I'm leaving the compile-time debug
 182    features enabled, and disable them "runtime". That allows me to
 183    instruct people with problems to enable debugging without requiring
 184    them to recompile...
 185 */
 186
 187 #ifdef DEBUG
 188 #define rio_dprintk(f, str...) do { if (rio_debug & f) printk (str);} while (0)
 189 #define func_enter() rio_dprintk (RIO_DEBUG_FLOW, "rio: enter %s\n", __func__)
 190 #define func_exit()  rio_dprintk (RIO_DEBUG_FLOW, "rio: exit  %s\n", __func__)
 191 #define func_enter2() rio_dprintk (RIO_DEBUG_FLOW, "rio: enter %s (port %d)\n",__func__, port->line)
 192 #else
 193 #define rio_dprintk(f, str...)  /* nothing */
 194 #define func_enter()
 195 #define func_exit()
 196 #define func_enter2()
 197 #endif