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sc16is752-regs.h
1 /*
2  * Copyright (c) 2016 embedded brains GmbH. All rights reserved.
3  *
4  * embedded brains GmbH
5  * Dornierstr. 4
6  * 82178 Puchheim
7  * Germany
8  * <info@embedded-brains.de>
9  *
10  * The license and distribution terms for this file may be
11  * found in the file LICENSE in this distribution or at
12  * http://www.rtems.org/license/LICENSE.
13  */
14 
15 #ifndef LIBBSP_ARM_ATSAM_SC16IS752_H
16 #define LIBBSP_ARM_ATSAM_SC16IS752_H
17 
18 #ifdef __cplusplus
19 extern "C" {
20 #endif /* __cplusplus */
21 
22 /* General register set */
23 #define SC16IS752_RHR 0x0
24 #define SC16IS752_THR 0x0
25 #define SC16IS752_IER 0x1
26 #define SC16IS752_FCR 0x2
27 #define SC16IS752_IIR 0x2
28 #define SC16IS752_LCR 0x3
29 #define SC16IS752_MCR 0x4
30 #define SC16IS752_LSR 0x5
31 #define SC16IS752_MSR 0x6
32 #define SC16IS752_TCR 0x6
33 #define SC16IS752_SPR 0x7
34 #define SC16IS752_TLR 0x7
35 #define SC16IS752_TXLVL 0x8
36 #define SC16IS752_RXLVL 0x9
37 #define SC16IS752_IODIR 0xA
38 #define SC16IS752_IOSTATE 0xB
39 #define SC16IS752_IOINTENA 0xC
40 #define SC16IS752_IOCONTROL 0xE
41 #define SC16IS752_EFCR 0xF
42 
43 /* Special register set */
44 #define SC16IS752_DLL 0x0
45 #define SC16IS752_DLH 0x1
46 
47 /* Enhanced register set */
48 #define SC16IS752_EFR 0x2
49 #define SC16IS752_XON1 0x4
50 #define SC16IS752_XON2 0x5
51 #define SC16IS752_XOFF1 0x6
52 #define SC16IS752_XOFF2 0x7
53 
54 /* FCR */
55 #define SC16IS752_FCR_FIFO_EN 0x01
56 #define SC16IS752_FCR_RX_FIFO_RST 0x02
57 #define SC16IS752_FCR_TX_FIFO_RST 0x04
58 #define SC16IS752_FCR_TX_FIFO_TRG_8 0x00
59 #define SC16IS752_FCR_TX_FIFO_TRG_16 0x10
60 #define SC16IS752_FCR_TX_FIFO_TRG_32 0x20
61 #define SC16IS752_FCR_TX_FIFO_TRG_56 0x30
62 #define SC16IS752_FCR_RX_FIFO_TRG_8 0x00
63 #define SC16IS752_FCR_RX_FIFO_TRG_16 0x40
64 #define SC16IS752_FCR_RX_FIFO_TRG_56 0x80
65 #define SC16IS752_FCR_RX_FIFO_TRG_60 0xc0
66 
67 /* EFCR */
68 #define SC16IS752_EFCR_RS485_ENABLE (1u << 0)
69 #define SC16IS752_EFCR_RX_DISABLE (1u << 1)
70 #define SC16IS752_EFCR_TX_DISABLE (1u << 2)
71 
72 /* IER */
73 #define SC16IS752_IER_RHR (1u << 0)
74 #define SC16IS752_IER_THR (1u << 1)
75 #define SC16IS752_IER_RECEIVE_LINE_STATUS (1u << 2)
76 #define SC16IS752_IER_MODEM_STATUS (1u << 3)
77 #define SC16IS752_IER_SLEEP_MODE (1u << 4)
78 #define SC16IS752_IER_XOFF (1u << 5)
79 #define SC16IS752_IER_RTS (1u << 6)
80 #define SC16IS752_IER_CTS (1u << 7)
81 
82 /* IIR */
83 #define SC16IS752_IIR_TX_INTERRUPT (1u << 1)
84 #define SC16IS752_IIR_RX_INTERRUPT (1u << 2)
85 
86 /* LCR */
87 #define SC16IS752_LCR_CHRL_5_BIT (0u << 1) | (0u << 0)
88 #define SC16IS752_LCR_CHRL_6_BIT (0u << 1) | (1u << 0)
89 #define SC16IS752_LCR_CHRL_7_BIT (1u << 1) | (0u << 0)
90 #define SC16IS752_LCR_CHRL_8_BIT (1u << 1) | (1u << 0)
91 #define SC16IS752_LCR_2_STOP_BIT (1u << 2)
92 #define SC16IS752_LCR_SET_PARITY (1u << 3)
93 #define SC16IS752_LCR_EVEN_PARITY (1u << 4)
94 #define SC16IS752_LCR_ENABLE_DIVISOR (1u << 7)
95 
96 /* LSR */
97 #define SC16IS752_LSR_TXEMPTY (1u << 5)
98 #define SC16IS752_LSR_RXRDY (1u << 0)
99 #define SC16IS752_LSR_ERROR_BITS (7u << 2)
100 
101 /* MCR */
102 #define SC16IS752_MCR_DTR (1u << 0)
103 #define SC16IS752_MCR_RTS (1u << 1)
104 #define SC16IS752_MCR_TCR_TLR (1u << 2)
105 #define SC16IS752_MCR_LOOPBACK (1u << 4)
106 #define SC16IS752_MCR_XON_ANY (1u << 5)
107 #define SC16IS752_MCR_IRDA_ENABLE (1u << 6)
108 #define SC16IS752_MCR_PRESCALE_NEEDED (1u << 7)
109 
110 /* MSR */
111 #define SC16IS752_MSR_dCTS (1u << 0)
112 #define SC16IS752_MSR_dDSR (1u << 1)
113 #define SC16IS752_MSR_dRI (1u << 2)
114 #define SC16IS752_MSR_dCD (1u << 3)
115 #define SC16IS752_MSR_CTS (1u << 4)
116 #define SC16IS752_MSR_DSR (1u << 5)
117 #define SC16IS752_MSR_RI (1u << 6)
118 #define SC16IS752_MSR_CD (1u << 7)
119 
120 /* EFR */
121 #define SC16IS752_EFR_ENHANCED_FUNC_ENABLE (1u << 4)
122 #define SC16IS752_EFR_SPECIAL_CHAR_DETECT (1u << 5)
123 #define SC16IS752_EFR_RTS_FLOW_CTRL_EN (1u << 6)
124 #define SC16IS752_EFR_CTS_FLOW_CTRL_EN (1u << 7)
125 
126 /* IOCONTROL: User accessible. Therefore see sc16is752.h for the defines. */
127 
128 #define SC16IS752_FIFO_DEPTH 64
129 
130 #ifdef __cplusplus
131 }
132 #endif /* __cplusplus */
133 
134 #endif /* LIBBSP_ARM_ATSAM_SC16IS752_H */
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