1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * include/asm/sunbpp.h
4 */
5
6 #ifndef _ASM_SPARC_SUNBPP_H
7 #define _ASM_SPARC_SUNBPP_H
8
9 struct bpp_regs {
10 /* DMA registers */
11 __volatile__ __u32 p_csr; /* DMA Control/Status Register */
12 __volatile__ __u32 p_addr; /* Address Register */
13 __volatile__ __u32 p_bcnt; /* Byte Count Register */
14 __volatile__ __u32 p_tst_csr; /* Test Control/Status (DMA2 only) */
15 /* Parallel Port registers */
16 __volatile__ __u16 p_hcr; /* Hardware Configuration Register */
17 __volatile__ __u16 p_ocr; /* Operation Configuration Register */
18 __volatile__ __u8 p_dr; /* Parallel Data Register */
19 __volatile__ __u8 p_tcr; /* Transfer Control Register */
20 __volatile__ __u8 p_or; /* Output Register */
21 __volatile__ __u8 p_ir; /* Input Register */
22 __volatile__ __u16 p_icr; /* Interrupt Control Register */
23 };
24
25 /* P_HCR. Time is in increments of SBus clock. */
26 #define P_HCR_TEST 0x8000 /* Allows buried counters to be read */
27 #define P_HCR_DSW 0x7f00 /* Data strobe width (in ticks) */
28 #define P_HCR_DDS 0x007f /* Data setup before strobe (in ticks) */
29
30 /* P_OCR. */
31 #define P_OCR_MEM_CLR 0x8000
32 #define P_OCR_DATA_SRC 0x4000 /* ) */
33 #define P_OCR_DS_DSEL 0x2000 /* ) Bidirectional */
34 #define P_OCR_BUSY_DSEL 0x1000 /* ) selects */
35 #define P_OCR_ACK_DSEL 0x0800 /* ) */
36 #define P_OCR_EN_DIAG 0x0400
37 #define P_OCR_BUSY_OP 0x0200 /* Busy operation */
38 #define P_OCR_ACK_OP 0x0100 /* Ack operation */
39 #define P_OCR_SRST 0x0080 /* Reset state machines. Not selfcleaning. */
40 #define P_OCR_IDLE 0x0008 /* PP data transfer state machine is idle */
41 #define P_OCR_V_ILCK 0x0002 /* Versatec faded. Zebra only. */
42 #define P_OCR_EN_VER 0x0001 /* Enable Versatec (0 - enable). Zebra only. */
43
44 /* P_TCR */
45 #define P_TCR_DIR 0x08
46 #define P_TCR_BUSY 0x04
47 #define P_TCR_ACK 0x02
48 #define P_TCR_DS 0x01 /* Strobe */
49
50 /* P_OR */
51 #define P_OR_V3 0x20 /* ) */
52 #define P_OR_V2 0x10 /* ) on Zebra only */
53 #define P_OR_V1 0x08 /* ) */
54 #define P_OR_INIT 0x04
55 #define P_OR_AFXN 0x02 /* Auto Feed */
56 #define P_OR_SLCT_IN 0x01
57
58 /* P_IR */
59 #define P_IR_PE 0x04
60 #define P_IR_SLCT 0x02
61 #define P_IR_ERR 0x01
62
63 /* P_ICR */
64 #define P_DS_IRQ 0x8000 /* RW1 */
65 #define P_ACK_IRQ 0x4000 /* RW1 */
66 #define P_BUSY_IRQ 0x2000 /* RW1 */
67 #define P_PE_IRQ 0x1000 /* RW1 */
68 #define P_SLCT_IRQ 0x0800 /* RW1 */
69 #define P_ERR_IRQ 0x0400 /* RW1 */
70 #define P_DS_IRQ_EN 0x0200 /* RW Always on rising edge */
71 #define P_ACK_IRQ_EN 0x0100 /* RW Always on rising edge */
72 #define P_BUSY_IRP 0x0080 /* RW 1= rising edge */
73 #define P_BUSY_IRQ_EN 0x0040 /* RW */
74 #define P_PE_IRP 0x0020 /* RW 1= rising edge */
75 #define P_PE_IRQ_EN 0x0010 /* RW */
76 #define P_SLCT_IRP 0x0008 /* RW 1= rising edge */
77 #define P_SLCT_IRQ_EN 0x0004 /* RW */
78 #define P_ERR_IRP 0x0002 /* RW1 1= rising edge */
79 #define P_ERR_IRQ_EN 0x0001 /* RW */
80
81 #endif /* !(_ASM_SPARC_SUNBPP_H) */