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authorRalf Baechle <ralf@linux-mips.org>1999-10-09 00:00:47 +0000
committerRalf Baechle <ralf@linux-mips.org>1999-10-09 00:00:47 +0000
commitd6434e1042f3b0a6dfe1b1f615af369486f9b1fa (patch)
treee2be02f33984c48ec019c654051d27964e42c441 /include/asm-i386/parport.h
parent609d1e803baf519487233b765eb487f9ec227a18 (diff)
Merge with 2.3.19.
Diffstat (limited to 'include/asm-i386/parport.h')
-rw-r--r--include/asm-i386/parport.h59
1 files changed, 59 insertions, 0 deletions
diff --git a/include/asm-i386/parport.h b/include/asm-i386/parport.h
new file mode 100644
index 000000000..c08ee4686
--- /dev/null
+++ b/include/asm-i386/parport.h
@@ -0,0 +1,59 @@
+/*
+ * parport.h: ia32-specific parport initialisation
+ *
+ * Copyright (C) 1999 Tim Waugh <tim@cyberelk.demon.co.uk>
+ *
+ * This file should only be included by drivers/parport/parport_pc.c.
+ */
+
+#ifndef _ASM_I386_PARPORT_H
+#define _ASM_I386_PARPORT_H 1
+
+#include <linux/config.h>
+
+/* Maximum number of ports to support. It is useless to set this greater
+ than PARPORT_MAX (in <linux/parport.h>). */
+#define PARPORT_PC_MAX_PORTS 8
+
+/* If parport_cs (PCMCIA) is managing ports for us, we'll need the
+ * probing routines forever; otherwise we can lose them at boot time. */
+#ifdef CONFIG_PARPORT_PC_PCMCIA
+#define __maybe_initdata
+#define __maybe_init
+#else
+#define __maybe_initdata __initdata
+#define __maybe_init __init
+#endif
+
+static int __maybe_init parport_pc_init_pci(int irq, int dma);
+
+static int user_specified __maybe_initdata = 0;
+int __init
+parport_pc_init(int *io, int *io_hi, int *irq, int *dma)
+{
+ int count = 0, i = 0;
+
+ if (io && *io) {
+ /* Only probe the ports we were given. */
+ user_specified = 1;
+ do {
+ if (!*io_hi) *io_hi = 0x400 + *io;
+ if (parport_pc_probe_port(*(io++), *(io_hi++),
+ *(irq++), *(dma++)))
+ count++;
+ } while (*io && (++i < PARPORT_PC_MAX_PORTS));
+ } else {
+ /* Probe all the likely ports. */
+ if (parport_pc_probe_port(0x3bc, 0x7bc, irq[0], dma[0]))
+ count++;
+ if (parport_pc_probe_port(0x378, 0x778, irq[0], dma[0]))
+ count++;
+ if (parport_pc_probe_port(0x278, 0x678, irq[0], dma[0]))
+ count++;
+ count += parport_pc_init_pci (irq[0], dma[0]);
+ }
+
+ return count;
+}
+
+#endif /* !(_ASM_I386_PARPORT_H) */