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-rw-r--r--sys/dev/pci/lofnreg.h33
1 files changed, 21 insertions, 12 deletions
diff --git a/sys/dev/pci/lofnreg.h b/sys/dev/pci/lofnreg.h
index bd65bdaf3ca..dc85cc5465f 100644
--- a/sys/dev/pci/lofnreg.h
+++ b/sys/dev/pci/lofnreg.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: lofnreg.h,v 1.10 2001/06/27 05:11:16 jason Exp $ */
+/* $OpenBSD: lofnreg.h,v 1.11 2001/07/04 05:58:29 jason Exp $ */
/*
* Copyright (c) 2001 Jason L. Wright (jason@thought.net)
@@ -31,17 +31,12 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
-#define LOFN_BAR0 0x10
+#define LOFN_BAR0 0x0010 /* base address register */
-#define LOFN_WIN_0 0x0000
-#define LOFN_WIN_1 0x2000
-#define LOFN_WIN_2 0x4000
-#define LOFN_WIN_3 0x6000
-
-#define LOFN_REG_MASK 0x0f80 /* Register number mask */
-#define LOFN_REG_SHIFT 7
-#define LOFN_WORD_MASK 0x007c /* Word index mask */
-#define LOFN_WORD_SHIFT 2
+#define LOFN_WIN_0 0x0000 /* 0 - rev byte, norm word */
+#define LOFN_WIN_1 0x2000 /* 1 - rev byte, rev word */
+#define LOFN_WIN_2 0x4000 /* 2 - norm byte, norm word */
+#define LOFN_WIN_3 0x6000 /* 3 - norm byte, rev word */
/* Bignum registers */
#define LOFN_REL_DATA 0x0000 /* Data registers */
@@ -64,19 +59,30 @@
#define LOFN_REL_CFG2 0x1fe8 /* Config2 */
#define LOFN_REL_CHIPID 0x1fec /* Chip ID */
+/* Data register access */
+#define LOFN_REG_MASK 0x0f80 /* Register number mask */
+#define LOFN_REG_SHIFT 7
+#define LOFN_WORD_MASK 0x007c /* Word index mask */
+#define LOFN_WORD_SHIFT 2
+
+/* Command address register (LOFN_REL_CR) */
#define LOFN_CR_ADDR_MASK 0x0000003f /* Instruction addr offset */
+/* Status register (LOFN_REL_SR) */
#define LOFN_SR_CARRY 0x00000008 /* Carry from operation */
#define LOFN_SR_RNG_UF 0x00001000 /* RNG underflow */
#define LOFN_SR_RNG_RDY 0x00004000 /* RNG ready */
#define LOFN_SR_DONE 0x00008000 /* Operation done */
+/* Interrupt enable register (LOFN_REL_IER) */
#define LOFN_IER_RDY 0x00004000 /* RNG ready */
#define LOFN_IER_DONE 0x00008000 /* Operation done */
+/* Random number configuration (LOFN_REL_RNC) */
#define LOFN_RNC_OUTSCALE 0x00000080 /* Output prescalar */
#define LOFN_RNC_1STSCALE 0x00000f00 /* First prescalar */
+/* Config register 1 (LOFN_REL_CFG1) */
#define LOFN_CFG1_RESET 0x00000001 /* Reset */
#define LOFN_CFG1_MULTI 0x00000038 /* PLL multiple */
#define LOFN_CFG1_MULTI_BYP 0x00000000 /* PLL bypass */
@@ -88,9 +94,11 @@
#define LOFN_CFG1_MULTI_4X 0x00000030 /* 4x CLK */
#define LOFN_CFG1_CLOCK 0x00000040 /* Clock select */
+/* Config register 2 (LOFN_REL_CFG2) */
#define LOFN_CFG2_RNGENA 0x00000001 /* RNG enable */
#define LOFN_CFG2_PRCENA 0x00000002 /* Processor enable */
+/* Chip identification (LOFN_REL_CHIPID) */
#define LOFN_CHIPID_MASK 0x0000ffff /* Chip ID */
#define LOFN_REGADDR(win,r,idx) \
@@ -118,7 +126,8 @@
#define OP_CODE_SR 0x28000000 /* shift right */
#define OP_CODE_SL 0x2c000000 /* shift left */
#define OP_CODE_INC 0x30000000 /* increment */
-#define OP_CODE_DEC 0x34000000 /* set length tag */
+#define OP_CODE_DEC 0x34000000 /* decrement */
+#define OP_CODE_TAG 0x38000000 /* set length tag */
#define OP_CODE_NOP 0x7c000000 /* nop */
#define OP_RD_SHIFT 21