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1da177e4 LT |
1 | /* $Id: sunbpp.h,v 1.1 1999/08/08 14:09:49 shadow Exp $ |
2 | * include/asm-sparc/sunbpp.h | |
3 | */ | |
4 | ||
5 | #ifndef _ASM_SPARC_SUNBPP_H | |
6 | #define _ASM_SPARC_SUNBPP_H | |
7 | ||
8 | struct bpp_regs { | |
9 | /* DMA registers */ | |
10 | __volatile__ __u32 p_csr; /* DMA Control/Status Register */ | |
11 | __volatile__ __u32 p_addr; /* Address Register */ | |
12 | __volatile__ __u32 p_bcnt; /* Byte Count Register */ | |
13 | __volatile__ __u32 p_tst_csr; /* Test Control/Status (DMA2 only) */ | |
14 | /* Parallel Port registers */ | |
15 | __volatile__ __u16 p_hcr; /* Hardware Configuration Register */ | |
16 | __volatile__ __u16 p_ocr; /* Operation Configuration Register */ | |
17 | __volatile__ __u8 p_dr; /* Parallel Data Register */ | |
18 | __volatile__ __u8 p_tcr; /* Transfer Control Register */ | |
19 | __volatile__ __u8 p_or; /* Output Register */ | |
20 | __volatile__ __u8 p_ir; /* Input Register */ | |
21 | __volatile__ __u16 p_icr; /* Interrupt Control Register */ | |
22 | }; | |
23 | ||
24 | /* P_HCR. Time is in increments of SBus clock. */ | |
25 | #define P_HCR_TEST 0x8000 /* Allows buried counters to be read */ | |
26 | #define P_HCR_DSW 0x7f00 /* Data strobe width (in ticks) */ | |
27 | #define P_HCR_DDS 0x007f /* Data setup before strobe (in ticks) */ | |
28 | ||
29 | /* P_OCR. */ | |
30 | #define P_OCR_MEM_CLR 0x8000 | |
31 | #define P_OCR_DATA_SRC 0x4000 /* ) */ | |
32 | #define P_OCR_DS_DSEL 0x2000 /* ) Bidirectional */ | |
33 | #define P_OCR_BUSY_DSEL 0x1000 /* ) selects */ | |
34 | #define P_OCR_ACK_DSEL 0x0800 /* ) */ | |
35 | #define P_OCR_EN_DIAG 0x0400 | |
36 | #define P_OCR_BUSY_OP 0x0200 /* Busy operation */ | |
37 | #define P_OCR_ACK_OP 0x0100 /* Ack operation */ | |
38 | #define P_OCR_SRST 0x0080 /* Reset state machines. Not selfcleaning. */ | |
39 | #define P_OCR_IDLE 0x0008 /* PP data transfer state machine is idle */ | |
40 | #define P_OCR_V_ILCK 0x0002 /* Versatec faded. Zebra only. */ | |
41 | #define P_OCR_EN_VER 0x0001 /* Enable Versatec (0 - enable). Zebra only. */ | |
42 | ||
43 | /* P_TCR */ | |
44 | #define P_TCR_DIR 0x08 | |
45 | #define P_TCR_BUSY 0x04 | |
46 | #define P_TCR_ACK 0x02 | |
47 | #define P_TCR_DS 0x01 /* Strobe */ | |
48 | ||
49 | /* P_OR */ | |
50 | #define P_OR_V3 0x20 /* ) */ | |
51 | #define P_OR_V2 0x10 /* ) on Zebra only */ | |
52 | #define P_OR_V1 0x08 /* ) */ | |
53 | #define P_OR_INIT 0x04 | |
54 | #define P_OR_AFXN 0x02 /* Auto Feed */ | |
55 | #define P_OR_SLCT_IN 0x01 | |
56 | ||
57 | /* P_IR */ | |
58 | #define P_IR_PE 0x04 | |
59 | #define P_IR_SLCT 0x02 | |
60 | #define P_IR_ERR 0x01 | |
61 | ||
62 | /* P_ICR */ | |
63 | #define P_DS_IRQ 0x8000 /* RW1 */ | |
64 | #define P_ACK_IRQ 0x4000 /* RW1 */ | |
65 | #define P_BUSY_IRQ 0x2000 /* RW1 */ | |
66 | #define P_PE_IRQ 0x1000 /* RW1 */ | |
67 | #define P_SLCT_IRQ 0x0800 /* RW1 */ | |
68 | #define P_ERR_IRQ 0x0400 /* RW1 */ | |
69 | #define P_DS_IRQ_EN 0x0200 /* RW Always on rising edge */ | |
70 | #define P_ACK_IRQ_EN 0x0100 /* RW Always on rising edge */ | |
71 | #define P_BUSY_IRP 0x0080 /* RW 1= rising edge */ | |
72 | #define P_BUSY_IRQ_EN 0x0040 /* RW */ | |
73 | #define P_PE_IRP 0x0020 /* RW 1= rising edge */ | |
74 | #define P_PE_IRQ_EN 0x0010 /* RW */ | |
75 | #define P_SLCT_IRP 0x0008 /* RW 1= rising edge */ | |
76 | #define P_SLCT_IRQ_EN 0x0004 /* RW */ | |
77 | #define P_ERR_IRP 0x0002 /* RW1 1= rising edge */ | |
78 | #define P_ERR_IRQ_EN 0x0001 /* RW */ | |
79 | ||
80 | #endif /* !(_ASM_SPARC_SUNBPP_H) */ |