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diff --git a/kernel/drivers/isdn/sc/hardware.h b/kernel/drivers/isdn/sc/hardware.h
new file mode 100644
index 000000000..81fbe7870
--- /dev/null
+++ b/kernel/drivers/isdn/sc/hardware.h
@@ -0,0 +1,110 @@
+/*
+ * Hardware specific macros, defines and structures
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+#ifndef HARDWARE_H
+#define HARDWARE_H
+
+#include <asm/param.h>			/* For HZ */
+
+/*
+ * General hardware parameters common to all ISA adapters
+ */
+
+#define MAX_CARDS	4		/* The maximum number of cards to
+					   control or probe for. */
+
+#define SIGNATURE	0x87654321	/* Board reset signature */
+#define SIG_OFFSET	0x1004		/* Where to find signature in shared RAM */
+#define TRACE_OFFSET	0x1008		/* Trace enable word offset in shared RAM */
+#define BUFFER_OFFSET	0x1800		/* Beginning of buffers */
+
+/* I/O Port parameters */
+#define IOBASE_MIN	0x180		/* Lowest I/O port address */
+#define IOBASE_MAX	0x3C0		/* Highest I/O port address */
+#define IOBASE_OFFSET	0x20		/* Inter-board I/O port gap used during
+					   probing */
+#define FIFORD_OFFSET	0x0
+#define FIFOWR_OFFSET	0x400
+#define FIFOSTAT_OFFSET	0x1000
+#define RESET_OFFSET	0x2800
+#define PG0_OFFSET	0x3000		/* Offset from I/O Base for Page 0 register */
+#define PG1_OFFSET	0x3400		/* Offset from I/O Base for Page 1 register */
+#define PG2_OFFSET	0x3800		/* Offset from I/O Base for Page 2 register */
+#define PG3_OFFSET	0x3C00		/* Offset from I/O Base for Page 3 register */
+
+#define FIFO_READ	0		/* FIFO Read register */
+#define FIFO_WRITE	1		/* FIFO Write rgister */
+#define LO_ADDR_PTR	2		/* Extended RAM Low Addr Pointer */
+#define HI_ADDR_PTR	3		/* Extended RAM High Addr Pointer */
+#define NOT_USED_1	4
+#define FIFO_STATUS	5		/* FIFO Status Register */
+#define NOT_USED_2	6
+#define MEM_OFFSET	7
+#define SFT_RESET	10		/* Reset Register */
+#define EXP_BASE	11		/* Shared RAM Base address */
+#define EXP_PAGE0	12		/* Shared RAM Page0 register */
+#define EXP_PAGE1	13		/* Shared RAM Page1 register */
+#define EXP_PAGE2	14		/* Shared RAM Page2 register */
+#define EXP_PAGE3	15		/* Shared RAM Page3 register */
+#define IRQ_SELECT	16		/* IRQ selection register */
+#define MAX_IO_REGS	17		/* Total number of I/O ports */
+
+/* FIFO register values */
+#define RF_HAS_DATA	0x01		/* fifo has data */
+#define RF_QUART_FULL	0x02		/* fifo quarter full */
+#define RF_HALF_FULL	0x04		/* fifo half full */
+#define RF_NOT_FULL	0x08		/* fifo not full */
+#define WF_HAS_DATA	0x10		/* fifo has data */
+#define WF_QUART_FULL	0x20		/* fifo quarter full */
+#define WF_HALF_FULL	0x40		/* fifo half full */
+#define WF_NOT_FULL	0x80		/* fifo not full */
+
+/* Shared RAM parameters */
+#define SRAM_MIN	0xC0000         /* Lowest host shared RAM address */
+#define SRAM_MAX	0xEFFFF         /* Highest host shared RAM address */
+#define SRAM_PAGESIZE	0x4000		/* Size of one RAM page (16K) */
+
+/* Shared RAM buffer parameters */
+#define BUFFER_SIZE	0x800		/* The size of a buffer in bytes */
+#define BUFFER_BASE	BUFFER_OFFSET	/* Offset from start of shared RAM
+					   where buffer start */
+#define BUFFERS_MAX	16		/* Maximum number of send/receive
+					   buffers per channel */
+#define HDLC_PROTO	0x01		/* Frame Format for Layer 2 */
+
+#define BRI_BOARD	0
+#define POTS_BOARD	1
+#define PRI_BOARD	2
+
+/*
+ * Specific hardware parameters for the DataCommute/BRI
+ */
+#define BRI_CHANNELS	2		/* Number of B channels */
+#define BRI_BASEPG_VAL	0x98
+#define BRI_MAGIC	0x60000		/* Magic Number */
+#define BRI_MEMSIZE	0x10000		/* Amount of RAM (64K) */
+#define BRI_PARTNO	"72-029"
+#define BRI_FEATURES	ISDN_FEATURE_L2_HDLC | ISDN_FEATURE_L3_TRANS;
+/*
+ * Specific hardware parameters for the DataCommute/PRI
+ */
+#define PRI_CHANNELS	23		/* Number of B channels */
+#define PRI_BASEPG_VAL	0x88
+#define PRI_MAGIC	0x20000		/* Magic Number */
+#define PRI_MEMSIZE	0x100000	/* Amount of RAM (1M) */
+#define PRI_PARTNO	"72-030"
+#define PRI_FEATURES	ISDN_FEATURE_L2_HDLC | ISDN_FEATURE_L3_TRANS;
+
+/*
+ * Some handy macros
+ */
+
+/* Determine if a channel number is valid for the adapter */
+#define IS_VALID_CHANNEL(y, x)	((x > 0) && (x <= sc_adapter[y]->channels))
+
+#endif