include/asm-m68knommu/nap.h

   1 /****************************************************************************/
   2
   3 /*
   4  *      nap.h -- Marconi/NAP support.
   5  *
   6  *      (C) Copyright 2001, SnapGear (www.snapgear.com)
   7  */
   8
   9 /****************************************************************************/
  10 #ifndef nap_h
  11 #define nap_h
  12 /****************************************************************************/
  13
  14 #include <linux/config.h>
  15
  16 /****************************************************************************/
  17 #ifdef CONFIG_MARCONINAP
  18 /****************************************************************************/
  19
  20 #ifdef CONFIG_COLDFIRE
  21 #include <asm/coldfire.h>
  22 #include <asm/mcfsim.h>
  23 #endif
  24
  25 /*
  26  *      Command to support selecting RS232 or RS422 mode on the
  27  *      second COM port.
  28  */
  29 #define TIOCSET422      0x4d01          /* Set port mode 232 or 422 */
  30 #define TIOCGET422      0x4d02          /* Get current port mode */
  31
  32 /*
  33  *      Low level control of the RS232/422 enable.
  34  */
  35 #define MCFPP_PA11      0x0800
  36
  37 #ifndef __ASSEMBLY__
  38 /*
  39  *      RS232/422 control is via the single PA11 line. Low is the RS422
  40  *      enable, high is RS232 mode.
  41  */
  42 static __inline__ unsigned int mcf_getpa(void)
  43 {
  44         volatile unsigned short *pp;
  45         pp = (volatile unsigned short *) (MCF_MBAR + MCFSIM_PADAT);
  46         return((unsigned int) *pp);
  47 }
  48
  49 static __inline__ void mcf_setpa(unsigned int mask, unsigned int bits)
  50 {
  51         volatile unsigned short *pp;
  52         unsigned long           flags;
  53
  54         pp = (volatile unsigned short *) (MCF_MBAR + MCFSIM_PADAT);
  55         save_flags(flags); cli();
  56         *pp = (*pp & ~mask) | bits;
  57         restore_flags(flags);
  58 }
  59 #endif /* __ASSEMBLY__ */
  60
  61 /****************************************************************************/
  62
  63 #if defined(CONFIG_M5272)
  64 /*
  65  *      Marconi/NAP based hardware. DTR/DCD lines are wired to GPB lines.
  66  */
  67 #define MCFPP_DCD0      0x0080
  68 #define MCFPP_DCD1      0x0020
  69 #define MCFPP_DTR0      0x0040
  70 #define MCFPP_DTR1      0x0010
  71
  72 #ifndef __ASSEMBLY__
  73 /*
  74  *      These functions defined to give quasi generic access to the
  75  *      PPIO bits used for DTR/DCD.
  76  */
  77 static __inline__ unsigned int mcf_getppdata(void)
  78 {
  79         volatile unsigned short *pp;
  80         pp = (volatile unsigned short *) (MCF_MBAR + MCFSIM_PBDAT);
  81         return((unsigned int) *pp);
  82 }
  83
  84 static __inline__ void mcf_setppdata(unsigned int mask, unsigned int bits)
  85 {
  86         volatile unsigned short *pp;
  87         pp = (volatile unsigned short *) (MCF_MBAR + MCFSIM_PBDAT);
  88         *pp = (*pp & ~mask) | bits;
  89 }
  90 #endif /* __ASSEMBLY__ */
  91 #endif /* CONFIG_M5272 */
  92
  93 /****************************************************************************/
  94 #endif /* CONFIG_MARCONINAP */
  95 /****************************************************************************/
  96 #endif  /* nap_h */