o Merge with Linux 2.1.116.

 o New Newport console code.
 o New G364 console code.

1 files changed, 72 insertions, 0 deletions

diff --git a/drivers/scsi/blz1230.h b/drivers/scsi/blz1230.h
new file mode 100644
index 000000000..3712b0f0d
--- /dev/null
+++ b/drivers/scsi/blz1230.h
@@ -0,0 +1,72 @@
+/* blz1230.h: Defines and structures for the Blizzard 1230 SCSI IV driver.
+ *
+ * Copyright (C) 1996 Jesper Skov (jskov@cygnus.co.uk)
+ *
+ * This file is based on cyber_esp.h (hence the occasional reference to
+ * CyberStorm).
+ */
+
+#include "NCR53C9x.h"
+
+#ifndef BLZ1230_H
+#define BLZ1230_H
+
+/* The controller registers can be found in the Z2 config area at these
+ * offsets:
+ */
+#define BLZ1230_ESP_ADDR 0x8000
+#define BLZ1230_DMA_ADDR 0x10000
+#define BLZ1230II_ESP_ADDR 0x10000
+#define BLZ1230II_DMA_ADDR 0x10021
+
+
+/* The Blizzard 1230 DMA interface
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ * Only two things can be programmed in the Blizzard DMA:
+ *  1) The data direction is controlled by the status of bit 31 (1 = write)
+ *  2) The source/dest address (word aligned, shifted one right) in bits 30-0
+ *
+ * Program DMA by first latching the highest byte of the address/direction
+ * (i.e. bits 31-24 of the long word constructed as described in steps 1+2
+ * above). Then write each byte of the address/direction (starting with the
+ * top byte, working down) to the DMA address register.
+ *
+ * Figure out interrupt status by reading the ESP status byte.
+ */
+struct blz1230_dma_registers {
+	volatile unsigned char dma_addr; 	/* DMA address      [0x0000] */
+	unsigned char dmapad2[0x7fff];
+	volatile unsigned char dma_latch; 	/* DMA latch        [0x8000] */
+};
+
+struct blz1230II_dma_registers {
+	volatile unsigned char dma_addr; 	/* DMA address      [0x0000] */
+	unsigned char dmapad2[0xf];
+	volatile unsigned char dma_latch; 	/* DMA latch        [0x0010] */
+};
+
+#define BLZ1230_DMA_WRITE 0x80000000
+
+extern int blz1230_esp_detect(struct SHT *);
+extern const char *esp_info(struct Scsi_Host *);
+extern int esp_queue(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
+extern int esp_command(Scsi_Cmnd *);
+extern int esp_abort(Scsi_Cmnd *);
+extern int esp_reset(Scsi_Cmnd *, unsigned int);
+extern int esp_proc_info(char *buffer, char **start, off_t offset, int length,
+			 int hostno, int inout);
+
+#define SCSI_BLZ1230      { proc_dir:		&proc_scsi_esp, \
+			    name:		"Blizzard1230 SCSI IV", \
+			    detect:		blz1230_esp_detect, \
+			    release:		NULL, \
+			    queuecommand:	esp_queue, \
+			    abort:		esp_abort, \
+			    reset:		esp_reset, \
+			    can_queue:          7, \
+			    this_id:		7, \
+			    sg_tablesize:	SG_ALL, \
+			    cmd_per_lun:	1, \
+			    use_clustering:	DISABLE_CLUSTERING }
+
+#endif /* BLZ1230_H */