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authorFinn Thain <fthain@telegraphics.com.au>2017-01-16 00:50:57 +0100
committerMartin K. Petersen <martin.petersen@oracle.com>2017-02-01 03:38:15 +0100
commit14d739f640d894b4b5db1ab3e1df17b865825a42 (patch)
tree8dea026b9bea32690ac1c3409bd1aed099b81f78 /drivers/scsi/sun3_scsi.c
parentscsi: ncr5380: Clean up dead code and redundant macro usage (diff)
downloadlinux-14d739f640d894b4b5db1ab3e1df17b865825a42.tar.xz
linux-14d739f640d894b4b5db1ab3e1df17b865825a42.zip
scsi: ncr5380: Reduce #include files
The NCR5380 wrapper drivers don't export symbols or declarations and don't actually need separate header files. Most of these header files were removed already; only sun3_scsi.h and g_NCR5380.h remain. Move the remaining definitions to the corresponding .c files to improve readability and proximity. The #defines which influence the #included core driver are no longer mixed up with unrelated #defines and #includes. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Tested-by: Ondrej Zary <linux@rainbow-software.org> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/sun3_scsi.c')
-rw-r--r--drivers/scsi/sun3_scsi.c80
1 files changed, 79 insertions, 1 deletions
diff --git a/drivers/scsi/sun3_scsi.c b/drivers/scsi/sun3_scsi.c
index 166f466964c4..14cebaf10371 100644
--- a/drivers/scsi/sun3_scsi.c
+++ b/drivers/scsi/sun3_scsi.c
@@ -34,7 +34,6 @@
#include <asm/dvma.h>
#include <scsi/scsi_host.h>
-#include "sun3_scsi.h"
/* minimum number of bytes to do dma on */
#define DMA_MIN_SIZE 129
@@ -58,6 +57,85 @@
#include "NCR5380.h"
+/* dma regs start at regbase + 8, directly after the NCR regs */
+struct sun3_dma_regs {
+ unsigned short dma_addr_hi; /* vme only */
+ unsigned short dma_addr_lo; /* vme only */
+ unsigned short dma_count_hi; /* vme only */
+ unsigned short dma_count_lo; /* vme only */
+ unsigned short udc_data; /* udc dma data reg (obio only) */
+ unsigned short udc_addr; /* uda dma addr reg (obio only) */
+ unsigned short fifo_data; /* fifo data reg,
+ * holds extra byte on odd dma reads
+ */
+ unsigned short fifo_count;
+ unsigned short csr; /* control/status reg */
+ unsigned short bpack_hi; /* vme only */
+ unsigned short bpack_lo; /* vme only */
+ unsigned short ivect; /* vme only */
+ unsigned short fifo_count_hi; /* vme only */
+};
+
+/* ucd chip specific regs - live in dvma space */
+struct sun3_udc_regs {
+ unsigned short rsel; /* select regs to load */
+ unsigned short addr_hi; /* high word of addr */
+ unsigned short addr_lo; /* low word */
+ unsigned short count; /* words to be xfer'd */
+ unsigned short mode_hi; /* high word of channel mode */
+ unsigned short mode_lo; /* low word of channel mode */
+};
+
+/* addresses of the udc registers */
+#define UDC_MODE 0x38
+#define UDC_CSR 0x2e /* command/status */
+#define UDC_CHN_HI 0x26 /* chain high word */
+#define UDC_CHN_LO 0x22 /* chain lo word */
+#define UDC_CURA_HI 0x1a /* cur reg A high */
+#define UDC_CURA_LO 0x0a /* cur reg A low */
+#define UDC_CURB_HI 0x12 /* cur reg B high */
+#define UDC_CURB_LO 0x02 /* cur reg B low */
+#define UDC_MODE_HI 0x56 /* mode reg high */
+#define UDC_MODE_LO 0x52 /* mode reg low */
+#define UDC_COUNT 0x32 /* words to xfer */
+
+/* some udc commands */
+#define UDC_RESET 0
+#define UDC_CHN_START 0xa0 /* start chain */
+#define UDC_INT_ENABLE 0x32 /* channel 1 int on */
+
+/* udc mode words */
+#define UDC_MODE_HIWORD 0x40
+#define UDC_MODE_LSEND 0xc2
+#define UDC_MODE_LRECV 0xd2
+
+/* udc reg selections */
+#define UDC_RSEL_SEND 0x282
+#define UDC_RSEL_RECV 0x182
+
+/* bits in csr reg */
+#define CSR_DMA_ACTIVE 0x8000
+#define CSR_DMA_CONFLICT 0x4000
+#define CSR_DMA_BUSERR 0x2000
+
+#define CSR_FIFO_EMPTY 0x400 /* fifo flushed? */
+#define CSR_SDB_INT 0x200 /* sbc interrupt pending */
+#define CSR_DMA_INT 0x100 /* dma interrupt pending */
+
+#define CSR_LEFT 0xc0
+#define CSR_LEFT_3 0xc0
+#define CSR_LEFT_2 0x80
+#define CSR_LEFT_1 0x40
+#define CSR_PACK_ENABLE 0x20
+
+#define CSR_DMA_ENABLE 0x10
+
+#define CSR_SEND 0x8 /* 1 = send 0 = recv */
+#define CSR_FIFO 0x2 /* reset fifo */
+#define CSR_INTR 0x4 /* interrupt enable */
+#define CSR_SCSI 0x1
+
+#define VME_DATA24 0x3d00
extern int sun3_map_test(unsigned long, char *);