summaryrefslogtreecommitdiff
path: root/sanei/sanei_directio.c
diff options
context:
space:
mode:
Diffstat (limited to 'sanei/sanei_directio.c')
-rw-r--r--sanei/sanei_directio.c367
1 files changed, 367 insertions, 0 deletions
diff --git a/sanei/sanei_directio.c b/sanei/sanei_directio.c
new file mode 100644
index 0000000..c95bb97
--- /dev/null
+++ b/sanei/sanei_directio.c
@@ -0,0 +1,367 @@
+/*************************************************/
+/* here we define sanei_inb/sanei_outb based on */
+/* OS dependent inb/outb definitions */
+/* SANE_INB is defined whenever a valid inb/outb */
+/* definition has been found */
+/*************************************************/
+
+#include "../include/sane/config.h"
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <sys/types.h>
+
+#include "../include/sane/sane.h"
+#include "../include/sane/sanei.h"
+#include "../include/sane/sanei_directio.h"
+
+#ifdef ENABLE_PARPORT_DIRECTIO
+
+#define TEST_SANE_INB(val) ( SANE_INB == val )
+
+#if ( TEST_SANE_INB(1) ) /* OS/2 EMX case */
+int
+sanei_ioperm (int start, int length, int enable)
+{
+ if (enable)
+ return _portaccess (port, port + length - 1);
+ return 0;
+}
+
+unsigned char
+sanei_inb (unsigned int port)
+{
+ return _inp8 (port) & 0xFF;
+}
+
+void
+sanei_outb (unsigned int port, unsigned char value)
+{
+ _outp8 (port, value);
+}
+
+void
+sanei_insb (unsigned int port, unsigned char *addr, unsigned long count)
+{
+ _inps8 (port, (unsigned char *) addr, count);
+}
+
+void
+sanei_insl (unsigned int port, unsigned char *addr, unsigned long count)
+{
+ _inps32 (port, (unsigned long *) addr, count);
+}
+
+void
+sanei_outsb (unsigned int port, const unsigned char *addr,
+ unsigned long count)
+{
+ _outps8 (port, (unsigned char *) addr, count);
+}
+
+void
+sanei_outsl (unsigned int port, const unsigned char *addr,
+ unsigned long count)
+{
+ _outps32 (port, (unsigned long *) addr, count);
+}
+#endif /* OS/2 EMX case */
+
+
+
+#if ( TEST_SANE_INB(2) ) /* FreeBSD case */
+int
+sanei_ioperm (int start, int length, int enable)
+{
+#ifdef HAVE_I386_SET_IOPERM
+ return i386_set_ioperm (start, length, enable);
+#else
+ int fd = 0;
+
+ /* makes compilers happy */
+ start = length + enable;
+ fd = open ("/dev/io", O_RDONLY);
+ if (fd > 0)
+ return 0;
+ return -1;
+#endif
+}
+
+unsigned char
+sanei_inb (unsigned int port)
+{
+ return inb (port);
+}
+
+void
+sanei_outb (unsigned int port, unsigned char value)
+{
+ outb (port, value);
+}
+
+void
+sanei_insb (unsigned int port, unsigned char *addr, unsigned long count)
+{
+ insb (port, addr, count);
+}
+
+void
+sanei_insl (unsigned int port, unsigned char *addr, unsigned long count)
+{
+ insl (port, addr, count);
+}
+
+void
+sanei_outsb (unsigned int port, const unsigned char *addr,
+ unsigned long count)
+{
+ outsb (port, addr, count);
+}
+
+void
+sanei_outsl (unsigned int port, const unsigned char *addr,
+ unsigned long count)
+{
+ outsl (port, addr, count);
+}
+#endif /* FreeBSD case */
+
+
+/* linux GCC on i386 */
+#if ( TEST_SANE_INB(3) ) /* FreeBSD case */
+
+int
+sanei_ioperm (int start, int length, int enable)
+{
+#ifdef HAVE_IOPERM
+ return ioperm (start, length, enable);
+#else
+ /* linux without ioperm ? hum ... */
+ /* makes compilers happy */
+ start = length + enable;
+ return 0;
+#endif
+}
+
+unsigned char
+sanei_inb (unsigned int port)
+{
+ return inb (port);
+}
+
+void
+sanei_outb (unsigned int port, unsigned char value)
+{
+ outb (value, port);
+}
+
+void
+sanei_insb (unsigned int port, unsigned char *addr, unsigned long count)
+{
+ insb (port, addr, count);
+}
+
+void
+sanei_insl (unsigned int port, unsigned char *addr, unsigned long count)
+{
+ insl (port, addr, count);
+}
+
+void
+sanei_outsb (unsigned int port, const unsigned char *addr,
+ unsigned long count)
+{
+ outsb (port, addr, count);
+}
+
+void
+sanei_outsl (unsigned int port, const unsigned char *addr,
+ unsigned long count)
+{
+ /* oddly, 32 bit I/O are done with outsw instead of the expected outsl */
+ outsw (port, addr, count);
+}
+#endif /* linux GCC on i386 */
+
+
+/* linux GCC non i386 */
+#if ( TEST_SANE_INB(4) )
+int
+sanei_ioperm (int start, int length, int enable)
+{
+#ifdef HAVE_IOPERM
+ return ioperm (start, length, enable);
+#else
+ /* linux without ioperm ? hum ... */
+ /* makes compilers happy */
+ start = length + enable;
+ return 0;
+#endif
+}
+
+unsigned char
+sanei_inb (unsigned int port)
+{
+ return inb (port);
+}
+
+void
+sanei_outb (unsigned int port, unsigned char value)
+{
+ outb (value, port);
+}
+
+void
+sanei_insb (unsigned int port, unsigned char *addr, unsigned long count)
+{
+ unsigned int i;
+
+ for (i = 0; i < count; i++)
+ addr[i] = sanei_inb (port);
+}
+
+void
+sanei_insl (unsigned int port, unsigned char *addr, unsigned long count)
+{
+ unsigned int i;
+
+ for (i = 0; i < count * 4; i++)
+ addr[i] = sanei_inb (port);
+}
+
+void
+sanei_outsb (unsigned int port, const unsigned char *addr,
+ unsigned long count)
+{
+ unsigned int i;
+
+ for (i = 0; i < count; i++)
+ sanei_outb (port, addr[i]);
+}
+
+void
+sanei_outsl (unsigned int port, const unsigned char *addr,
+ unsigned long count)
+{
+ unsigned int i;
+
+ for (i = 0; i < count * 4; i++)
+ sanei_outb (port, addr[i]);
+}
+#endif /* linux GCC non i386 */
+
+
+/* ICC on i386 */
+#if ( TEST_SANE_INB(5) )
+int
+sanei_ioperm (int start, int length, int enable)
+{
+#ifdef HAVE_IOPERM
+ return ioperm (start, length, enable);
+#else
+ /* ICC without ioperm() ... */
+ /* makes compilers happy */
+ start = length + enable;
+ return 0;
+#endif
+}
+unsigned char
+sanei_inb (unsigned int port)
+{
+ unsigned char ret;
+
+ __asm__ __volatile__ ("inb %%dx,%%al":"=a" (ret):"d" ((u_int) port));
+ return ret;
+}
+
+void
+sanei_outb (unsigned int port, unsigned char value)
+{
+ __asm__ __volatile__ ("outb %%al,%%dx"::"a" (value), "d" ((u_int) port));
+}
+
+void
+sanei_insb (unsigned int port, void *addr, unsigned long count)
+{
+ __asm__ __volatile__ ("rep ; insb":"=D" (addr), "=c" (count):"d" (port),
+ "0" (addr), "1" (count));
+}
+
+void
+sanei_insl (unsigned int port, void *addr, unsigned long count)
+{
+ __asm__ __volatile__ ("rep ; insl":"=D" (addr), "=c" (count):"d" (port),
+ "0" (addr), "1" (count));
+}
+
+void
+sanei_outsb (unsigned int port, const void *addr, unsigned long count)
+{
+ __asm__ __volatile__ ("rep ; outsb":"=S" (addr), "=c" (count):"d" (port),
+ "0" (addr), "1" (count));
+}
+
+void
+sanei_outsl (unsigned int port, const void *addr, unsigned long count)
+{
+ __asm__ __volatile__ ("rep ; outsl":"=S" (addr), "=c" (count):"d" (port),
+ "0" (addr), "1" (count));
+}
+
+#endif /* ICC on i386 */
+
+#endif /* ENABLE_PARPORT_DIRECTIO */
+/*
+ * no inb/outb without --enable-parport-directio *
+ */
+#ifndef ENABLE_PARPORT_DIRECTIO
+int
+sanei_ioperm (__sane_unused__ int start, __sane_unused__ int length,
+ __sane_unused__ int enable)
+{
+ /* returns failure */
+ return -1;
+}
+
+unsigned char
+sanei_inb (__sane_unused__ unsigned int port)
+{
+ return 255;
+}
+
+void
+sanei_outb (__sane_unused__ unsigned int port,
+ __sane_unused__ unsigned char value)
+{
+}
+
+void
+sanei_insb (__sane_unused__ unsigned int port,
+ __sane_unused__ unsigned char *addr,
+ __sane_unused__ unsigned long count)
+{
+}
+
+void
+sanei_insl (__sane_unused__ unsigned int port,
+ __sane_unused__ unsigned char *addr,
+ __sane_unused__ unsigned long count)
+{
+}
+
+void
+sanei_outsb (__sane_unused__ unsigned int port,
+ __sane_unused__ const unsigned char *addr,
+ __sane_unused__ unsigned long count)
+{
+}
+
+void
+sanei_outsl (__sane_unused__ unsigned int port,
+ __sane_unused__ const unsigned char *addr,
+ __sane_unused__ unsigned long count)
+{
+}
+#endif /* ENABLE_PARPORT_DIRECTIO is not defined */
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-03 22:26:14 +0000