-/* Copyright (C) 1992, 1996 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
-Contributed by David Mosberger.
+/* Copyright (C) 1992, 1996, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by David Mosberger.
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
-The GNU C Library 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. See the GNU
-Library General Public License for more details.
+ The GNU C Library 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. See the GNU
+ Library General Public License for more details.
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
/* I/O access is restricted to ISA port space (ports 0..65535).
-Modern devices hopefully are sane enough not to put any performance
-critical registers in i/o space.
+ Modern devices hopefully are sane enough not to put any performance
+ critical registers in i/o space.
-On the first call to ioperm() or _sethae(), the entire (E)ISA port
-space is mapped into the virtual address space at address io.base.
-mprotect() calls are then used to enable/disable access to ports. Per
-page, there are PAGE_SIZE>>IO_SHIFT I/O ports (e.g., 256 ports on a
-Low Cost Alpha based system using 8KB pages).
+ On the first call to ioperm() or _sethae(), the entire (E)ISA port
+ space is mapped into the virtual address space at address io.base.
+ mprotect() calls are then used to enable/disable access to ports. Per
+ page, there are PAGE_SIZE>>IO_SHIFT I/O ports (e.g., 256 ports on a
+ Low Cost Alpha based system using 8KB pages).
-Keep in mind that this code should be able to run in a 32bit address
-space. It is therefore unreasonable to expect mmap'ing the entire
-sparse address space would work (e.g., the Low Cost Alpha chip has an
-I/O address space that's 512MB large!). */
+ Keep in mind that this code should be able to run in a 32bit address
+ space. It is therefore unreasonable to expect mmap'ing the entire
+ sparse address space would work (e.g., the Low Cost Alpha chip has an
+ I/O address space that's 512MB large!). */
#include <errno.h>
#include <fcntl.h>
#define CIA_SPARSE_MEM (0xfffffc8000000000UL)
#define CIA_DENSE_MEM (0xfffffc8600000000UL)
+#define T2_IO_BASE (0xfffffc03a0000000UL)
+#define T2_SPARSE_BASE (0xfffffc0200000000UL)
+#define T2_DENSE_BASE (0xfffffc03c0000000UL)
-enum {
- IOSYS_JENSEN = 0, IOSYS_APECS = 1, IOSYS_CIA = 2
+typedef enum {
+ IOSYS_UNKNOWN, IOSYS_JENSEN, IOSYS_APECS, IOSYS_CIA, IOSYS_T2
} iosys_t;
struct ioswtch {
- void (*sethae)(unsigned long addr);
- void (*outb)(unsigned char b, unsigned long port);
- void (*outw)(unsigned short b, unsigned long port);
- void (*outl)(unsigned int b, unsigned long port);
- unsigned int (*inb)(unsigned long port);
- unsigned int (*inw)(unsigned long port);
- unsigned int (*inl)(unsigned long port);
+ void (*sethae)(unsigned long int addr);
+ void (*outb)(unsigned char b, unsigned long int port);
+ void (*outw)(unsigned short b, unsigned long int port);
+ void (*outl)(unsigned int b, unsigned long int port);
+ unsigned int (*inb)(unsigned long int port);
+ unsigned int (*inw)(unsigned long int port);
+ unsigned int (*inl)(unsigned long int port);
};
static struct platform {
- const char *name;
- int io_sys;
- int hae_shift;
- unsigned long bus_memory_base;
- unsigned long sparse_bus_memory_base;
+ const char *name;
+ int io_sys;
+ iosys_t hae_shift;
+ unsigned long int bus_memory_base;
+ unsigned long int sparse_bus_memory_base;
} platform[] = {
{"Alcor", IOSYS_CIA, 5, CIA_DENSE_MEM, CIA_SPARSE_MEM},
{"Avanti", IOSYS_APECS, 5, APECS_DENSE_MEM, APECS_SPARSE_MEM},
{"Mikasa", IOSYS_APECS, 5, APECS_DENSE_MEM, APECS_SPARSE_MEM},
{"Mustang", IOSYS_APECS, 5, APECS_DENSE_MEM, APECS_SPARSE_MEM},
{"Noname", IOSYS_APECS, 5, APECS_DENSE_MEM, APECS_SPARSE_MEM},
+ {"Sable", IOSYS_T2, 5, T2_DENSE_MEM, T2_SPARSE_MEM},
};
static struct {
struct hae {
- unsigned long cache;
- unsigned long * reg;
+ unsigned long int cache;
+ unsigned long int * reg;
} hae;
- unsigned long base;
+ unsigned long int base;
struct ioswtch * swp;
- int sys;
+ unsigned long int bus_memory_base;
+ unsigned long int sparse_bus_memory_base;
+ unsigned long int io_base;
+ iosys_t sys;
int hae_shift;
- unsigned long bus_memory_base;
- unsigned long sparse_bus_memory_base;
} io;
-extern void __sethae (unsigned long); /* we can't use asm/io.h */
+extern void __sethae (unsigned long int); /* we can't use asm/io.h */
-static inline unsigned long
-port_to_cpu_addr (unsigned long port, int iosys, int size)
+static inline unsigned long int
+port_to_cpu_addr (unsigned long int port, iosys_t iosys, int size)
{
if (iosys == IOSYS_JENSEN)
return (port << 7) + ((size - 1) << 5) + io.base;
static inline void
-inline_sethae (unsigned long addr, int iosys)
+inline_sethae (unsigned long int addr, iosys_t iosys)
{
if (iosys == IOSYS_JENSEN)
{
}
else
{
- unsigned long msb;
+ unsigned long int msb;
/* no need to set hae if msb is 0: */
msb = addr & 0xf8000000;
static inline void
-inline_outb (unsigned char b, unsigned long port, int iosys)
+inline_outb (unsigned char b, unsigned long int port, iosys_t iosys)
{
unsigned int w;
- unsigned long addr = port_to_cpu_addr (port, iosys, 1);
+ unsigned long int addr = port_to_cpu_addr (port, iosys, 1);
inline_sethae (0, iosys);
asm ("insbl %2,%1,%0" : "r=" (w) : "ri" (port & 0x3), "r" (b));
static inline void
-inline_outw (unsigned short b, unsigned long port, int iosys)
+inline_outw (unsigned short int b, unsigned long int port, iosys_t iosys)
{
unsigned int w;
- unsigned long addr = port_to_cpu_addr (port, iosys, 2);
+ unsigned long int addr = port_to_cpu_addr (port, iosys, 2);
inline_sethae (0, iosys);
asm ("inswl %2,%1,%0" : "r=" (w) : "ri" (port & 0x3), "r" (b));
static inline void
-inline_outl (unsigned int b, unsigned long port, int iosys)
+inline_outl (unsigned int b, unsigned long int port, iosys_t iosys)
{
- unsigned long addr = port_to_cpu_addr (port, iosys, 4);
+ unsigned long int addr = port_to_cpu_addr (port, iosys, 4);
if (port >= MAX_PORT)
return;
static inline unsigned int
-inline_inb (unsigned long port, int iosys)
+inline_inb (unsigned long int port, iosys_t iosys)
{
- unsigned long result, addr = port_to_cpu_addr (port, iosys, 1);
+ unsigned long int result, addr = port_to_cpu_addr (port, iosys, 1);
inline_sethae (0, iosys);
result = *(vuip) addr;
static inline unsigned int
-inline_inw (unsigned long port, int iosys)
+inline_inw (unsigned long int port, iosys_t iosys)
{
- unsigned long result, addr = port_to_cpu_addr (port, iosys, 2);
+ unsigned long int result, addr = port_to_cpu_addr (port, iosys, 2);
inline_sethae (0, iosys);
result = *(vuip) addr;
static inline unsigned int
-inline_inl (unsigned long port, int iosys)
+inline_inl (unsigned long int port, iosys_t iosys)
{
- unsigned long addr = port_to_cpu_addr (port, iosys, 4);
+ unsigned long int addr = port_to_cpu_addr (port, iosys, 4);
inline_sethae (0, iosys);
return *(vuip) addr;
#define DCL_SETHAE(name, iosys) \
static void \
-name##_sethae (unsigned long addr) \
+name##_sethae (unsigned long int addr) \
{ \
inline_sethae (addr, IOSYS_##iosys); \
}
#define DCL_OUT(name, func, type, iosys) \
static void \
-name##_##func (unsigned type b, unsigned long addr) \
+name##_##func (unsigned type b, unsigned long int addr) \
{ \
inline_##func (b, addr, IOSYS_##iosys); \
}
#define DCL_IN(name, func, iosys) \
static unsigned int \
-name##_##func (unsigned long addr) \
+name##_##func (unsigned long int addr) \
{ \
return inline_##func (addr, IOSYS_##iosys); \
}
DCL_SETHAE(jensen, JENSEN)
DCL_OUT(jensen, outb, char, JENSEN)
-DCL_OUT(jensen, outw, short, JENSEN)
+DCL_OUT(jensen, outw, short int, JENSEN)
DCL_OUT(jensen, outl, int, JENSEN)
DCL_IN(jensen, inb, JENSEN)
DCL_IN(jensen, inw, JENSEN)
DCL_SETHAE(apecs, APECS)
DCL_OUT(apecs, outb, char, APECS)
-DCL_OUT(apecs, outw, short, APECS)
+DCL_OUT(apecs, outw, short int, APECS)
DCL_OUT(apecs, outl, int, APECS)
DCL_IN(apecs, inb, APECS)
DCL_IN(apecs, inw, APECS)
* with, we first try to read the value of symlink PATH_ALPHA_SYSTYPE,
* if that fails, we lookup the "system type" field in /proc/cpuinfo.
* If that fails as well, we give up.
+ *
+ * If the value received from PATH_ALPHA_SYSTYPE begins with a number,
+ * assume this is a previously unsupported system and the values encode,
+ * in order, "<io_base>,<hae_shift>,<dense_base>,<sparse_base>".
*/
static int
init_iosys (void)
char systype[256];
int i, n;
- n = readlink(PATH_ALPHA_SYSTYPE, systype, sizeof(systype) - 1);
+ n = readlink (PATH_ALPHA_SYSTYPE, systype, sizeof (systype) - 1);
if (n > 0)
{
systype[n] = '\0';
+ if (isdigit (systype[0]))
+ {
+ if (sscanf (systype, "%li,%i,%li,%li", &io.io_base, &io.hae_shift,
+ &io.bus_memory_base, &io.sparse_bus_memory_base) == 4)
+ {
+ io.sys = IOSYS_UNKNOWN;
+ io.swp = &ioswtch[1];
+ return 0;
+ }
+ /* else we're likely going to fail with the system match below */
+ }
}
else
{
else
fgets (systype, 256, fp);
}
- fclose(fp);
+ fclose (fp);
if (n == EOF)
{
/* this can happen if the format of /proc/cpuinfo changes... */
- fprintf(stderr,
- "ioperm.init_iosys(): Unable to determine system type.\n"
- "\t(May need " PATH_ALPHA_SYSTYPE " symlink?)\n");
+ fprintf (stderr,
+ "ioperm.init_iosys(): Unable to determine system type.\n"
+ "\t(May need " PATH_ALPHA_SYSTYPE " symlink?)\n");
__set_errno (ENODEV);
return -1;
}
int
-_ioperm (unsigned long from, unsigned long num, int turn_on)
+_ioperm (unsigned long int from, unsigned long int num, int turn_on)
{
- unsigned long addr, len;
+ unsigned long int addr, len;
int prot;
if (!io.swp && init_iosys () < 0)
{
if (!io.base)
{
- unsigned long base;
+ unsigned long int base;
int fd;
io.hae.reg = 0; /* not used in user-level */
switch (io.sys)
{
+ case IOSYS_UNKNOWN: base = io.io_base; break;
case IOSYS_JENSEN: base = JENSEN_IO_BASE; break;
case IOSYS_APECS: base = APECS_IO_BASE; break;
case IOSYS_CIA: base = CIA_IO_BASE; break;
addr &= PAGE_MASK;
len = port_to_cpu_addr (MAX_PORT, io.sys, 1) - addr;
io.base =
- (unsigned long) __mmap (0, len, PROT_NONE, MAP_SHARED, fd, base);
+ (unsigned long int) __mmap (0, len, PROT_NONE, MAP_SHARED,
+ fd, base);
close (fd);
if ((long) io.base == -1)
return -1;
void
-_sethae (unsigned long addr)
+_sethae (unsigned long int addr)
{
if (!io.swp && init_iosys () < 0)
return;
void
-_outb (unsigned char b, unsigned long port)
+_outb (unsigned char b, unsigned long int port)
{
if (port >= MAX_PORT)
return;
void
-_outw (unsigned short b, unsigned long port)
+_outw (unsigned short b, unsigned long int port)
{
if (port >= MAX_PORT)
return;
void
-_outl (unsigned int b, unsigned long port)
+_outl (unsigned int b, unsigned long int port)
{
if (port >= MAX_PORT)
return;
unsigned int
-_inb (unsigned long port)
+_inb (unsigned long int port)
{
return io.swp->inb (port);
}
unsigned int
-_inw (unsigned long port)
+_inw (unsigned long int port)
{
return io.swp->inw (port);
}
unsigned int
-_inl (unsigned long port)
+_inl (unsigned long int port)
{
return io.swp->inl (port);
}
-unsigned long
+unsigned long int
_bus_base(void)
{
if (!io.swp && init_iosys () < 0)
return io.bus_memory_base;
}
-unsigned long
+unsigned long int
_bus_base_sparse(void)
{
if (!io.swp && init_iosys () < 0)
projects / external / glibc.git / commitdiff