first cut at a bpp driver; mailed to me by downsj eons ago

1 files changed, 139 insertions, 0 deletions

diff --git a/sys/arch/sparc/dev/bppreg.h b/sys/arch/sparc/dev/bppreg.h
new file mode 100644
index 00000000000..fe3d7e5c6a4
--- /dev/null
+++ b/sys/arch/sparc/dev/bppreg.h
@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) 1997, Jason Downs.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Jason Downs for the
+ *      OpenBSD system.
+ * 4. Neither the name(s) of the author(s) nor the name OpenBSD
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * based on work by Stephen Williams, Gus Baldauf, and Peter Zaitcev
+ */
+
+/*
+ * BPP Register Block
+ */
+struct bppregs {
+
+	volatile u_int32_t	bpp_csr;
+	volatile u_int32_t	bpp_addr;
+	volatile u_int32_t	bpp_bcnt;
+	volatile u_int32_t	bpp_tst_csr;
+
+	volatile u_int16_t	bpp_hcr;
+	volatile u_int16_t	bpp_ocr;
+	volatile u_int8_t	bpp_dr;
+	volatile u_int8_t	bpp_tcr;
+	volatile u_int8_t	bpp_or;
+	volatile u_int8_t	bpp_ir;
+	volatile u_int16_t	bpp_icr;
+};
+
+
+#define BPP_DEV_ID_MASK		0xf0000000
+#define BPP_DEV_ID_ZEBRA	0x40000000
+#define BPP_DEV_ID_L64854	0xa0000000
+#define BPP_NA_LOADED		0x08000000
+#define BPP_A_LOADED		0x04000000
+#define BPP_DMA_ON		0x02000000
+#define BPP_EN_NEXT		0x01000000
+#define BPP_TCI_DIS		0x00800000
+#define BPP_DIAG		0x00100000
+
+#define BPP_BURST_SIZE		0x000c0000
+#define BPP_BURST_8		0x00000000
+#define BPP_BURST_4		0x00040000
+#define BPP_BURST_1		0x00080000
+#define BPP_TC			0x00004000
+
+#define BPP_EN_CNT		0x00002000
+#define BPP_EN_DMA		0x00000200
+#define BPP_WRITE		0x00000100
+#define BPP_RESET		0x00000080
+#define BPP_SLAVE_ERR		0x00000040
+#define BPP_INVALIDATE		0x00000020
+#define BPP_INT_EN		0x00000010
+#define BPP_DRAINING		0x0000000c
+
+#define BPP_ERR_PEND		0x00000002
+#define BPP_INT_PEND		0x00000001
+
+
+#define BPP_HCR_TEST		0x8000
+#define BPP_HCR_DSW		0x7f00
+#define BPP_HCR_DDS		0x007f
+
+
+#define BPP_OCR_MEM_CLR		0x8000
+#define BPP_OCR_DATA_SRC	0x4000
+#define BPP_OCR_DS_DSEL		0x2000
+#define BPP_OCR_BUSY_DSEL	0x1000
+#define BPP_OCR_ACK_DSEL	0x0800
+#define BPP_OCR_EN_DIAG		0x0400
+#define BPP_OCR_BUSY_OP		0x0200
+#define BPP_OCR_ACK_OP		0x0100
+#define BPP_OCR_SRST		0x0080
+#define BPP_OCR_IDLE		0x0008
+#define BPP_OCR_V_ILCK		0x0002
+#define BPP_OCR_EN_VER		0x0001
+
+
+#define BPP_TCR_DIR		0x08
+#define BPP_TCR_BUSY		0x04
+#define BPP_TCR_ACK		0x02
+#define BPP_TCR_DS		0x01
+
+
+#define BPP_OR_V3		0x20
+#define BPP_OR_V2		0x10
+#define BPP_OR_V1		0x08
+#define BPP_OR_INIT		0x04
+#define BPP_OR_AFXN		0x02
+#define BPP_OR_SLCT_IN		0x01
+
+
+#define BPP_IR_PE		0x04
+#define BPP_IR_SLCT		0x02
+#define BPP_IR_ERR		0x01
+
+
+#define BPP_DS_IRQ		0x8000
+#define BPP_ACK_IRQ		0x4000
+#define BPP_BUSY_IRQ		0x2000
+#define BPP_PE_IRQ		0x1000
+#define BPP_SLCT_IRQ		0x0800
+#define BPP_ERR_IRQ		0x0400
+#define BPP_DS_IRQ_EN		0x0200
+#define BPP_ACK_IRQ_EN		0x0100
+#define BPP_BUSY_IRP		0x0080
+#define BPP_BUSY_IRQ_EN		0x0040
+#define BPP_PE_IRP		0x0020
+#define BPP_PE_IRQ_EN		0x0010
+#define BPP_SLCT_IRP		0x0008
+#define BPP_SLCT_IRQ_EN		0x0004
+#define BPP_ERR_IRP		0x0002
+#define BPP_ERR_IRQ_EN		0x0001