Linux Audio

Check our new training course

Embedded Linux Audio

Check our new training course
with Creative Commons CC-BY-SA
lecture materials

Bootlin logo

Elixir Cross Referencer

Open Menu / arch / ppc / kernel / port_io.c
Loading...
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
/*
 * I/O 'port' access routines
 */

/* This is really only correct for the MVME16xx (PreP)? */

#define _IO_BASE ((unsigned long)0x80000000)

unsigned char
inb(int port)
{
	return (*((unsigned  char *)(_IO_BASE+port)));
}

unsigned short
inw(int port)
{
	return (_LE_to_BE_short(*((unsigned short *)(_IO_BASE+port))));
}

unsigned long
inl(int port)
{
	return (_LE_to_BE_long(*((unsigned  long *)(_IO_BASE+port))));
}

void insb(int port, char *ptr, int len)
{
	unsigned char *io_ptr = (unsigned char *)(_IO_BASE+port);
	while (len-- > 0)
	{
		*ptr++ = *io_ptr;
	}
}

#if 0
void insw(int port, short *ptr, int len)
{
	unsigned short *io_ptr = (unsigned short *)(_IO_BASE+port);
	while (len-- > 0)
	{
		*ptr++ = _LE_to_BE_short(*io_ptr);
	}
}
#else
void insw(int port, short *ptr, int len)
{
	unsigned short *io_ptr = (unsigned short *)(_IO_BASE+port);
	_insw(io_ptr, ptr, len);
}
#endif

void insw_unswapped(int port, short *ptr, int len)
{
	unsigned short *io_ptr = (unsigned short *)(_IO_BASE+port);
	while (len-- > 0)
	{
		*ptr++ = *io_ptr;
	}
}

void insl(int port, long *ptr, int len)
{
	unsigned long *io_ptr = (unsigned long *)(_IO_BASE+port);
	while (len-- > 0)
	{
		*ptr++ = _LE_to_BE_long(*io_ptr);
	}
}

unsigned char  inb_p(int port) {return (inb(port)); }
unsigned short inw_p(int port) {return (inw(port)); }
unsigned long  inl_p(int port) {return (inl(port)); }

unsigned char
outb(unsigned char val,int port)
{
	*((unsigned  char *)(_IO_BASE+port)) = (val);
	return (val);
}

unsigned short
outw(unsigned short val,int port)
{
	*((unsigned  short *)(_IO_BASE+port)) = _LE_to_BE_short(val);
	return (val);
}

unsigned long
outl(unsigned long val,int port)
{
	*((unsigned  long *)(_IO_BASE+port)) = _LE_to_BE_long(val);
	return (val);
}

void outsb(int port, char *ptr, int len)
{
	unsigned char *io_ptr = (unsigned char *)(_IO_BASE+port);
	while (len-- > 0)
	{
		*io_ptr = *ptr++;
	}
}

#if 0
void outsw(int port, short *ptr, int len)
{
	unsigned short *io_ptr = (unsigned short *)(_IO_BASE+port);
	while (len-- > 0)
	{
		*io_ptr = _LE_to_BE_short(*ptr++);
	}
}
#else
void outsw(int port, short *ptr, int len)
{
	unsigned short *io_ptr = (unsigned short *)(_IO_BASE+port);
	_outsw(io_ptr, ptr, len);
}
#endif

void outsw_unswapped(int port, short *ptr, int len)
{
	unsigned short *io_ptr = (unsigned short *)(_IO_BASE+port);
	while (len-- > 0)
	{
		*io_ptr = *ptr++;
	}
}

void outsl(int port, long *ptr, int len)
{
	unsigned long *io_ptr = (unsigned long *)(_IO_BASE+port);
	while (len-- > 0)
	{
		*io_ptr = _LE_to_BE_long(*ptr++);
	}
}

unsigned char  outb_p(unsigned char val,int port) { return (outb(val,port)); }
unsigned short outw_p(unsigned short val,int port) { return (outw(val,port)); }
unsigned long  outl_p(unsigned long val,int port) { return (outl(val,port)); }