summaryrefslogtreecommitdiff
path: root/drivers/ipack/devices/scc2698.h
blob: 9649576ce77edb531a613e98279157191b3f2682 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * scc2698.h
 *
 * driver for the IPOCTAL boards
 *
 * Copyright (C) 2009-2012 CERN (www.cern.ch)
 * Author: Nicolas Serafini, EIC2 SA
 * Author: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
 */

#ifndef SCC2698_H_
#define SCC2698_H_

/*
 * union scc2698_channel - Channel access to scc2698 IO
 *
 * dn value are only spacer.
 *
 */
union scc2698_channel {
	struct {
		u8 d0, mr;  /* Mode register 1/2*/
		u8 d1, sr;  /* Status register */
		u8 d2, r1;  /* reserved */
		u8 d3, rhr; /* Receive holding register (R) */
		u8 junk[8]; /* other crap for block control */
	} __packed r; /* Read access */
	struct {
		u8 d0, mr;  /* Mode register 1/2 */
		u8 d1, csr; /* Clock select register */
		u8 d2, cr;  /* Command register */
		u8 d3, thr; /* Transmit holding register */
		u8 junk[8]; /* other crap for block control */
	} __packed w; /* Write access */
};

/*
 * union scc2698_block - Block access to scc2698 IO
 *
 * The scc2698 contain 4 block.
 * Each block containt two channel a and b.
 * dn value are only spacer.
 *
 */
union scc2698_block {
	struct {
		u8 d0, mra;  /* Mode register 1/2 (a) */
		u8 d1, sra;  /* Status register (a) */
		u8 d2, r1;   /* reserved */
		u8 d3, rhra; /* Receive holding register (a) */
		u8 d4, ipcr; /* Input port change register of block */
		u8 d5, isr;  /* Interrupt status register of block */
		u8 d6, ctur; /* Counter timer upper register of block */
		u8 d7, ctlr; /* Counter timer lower register of block */
		u8 d8, mrb;  /* Mode register 1/2 (b) */
		u8 d9, srb;  /* Status register (b) */
		u8 da, r2;   /* reserved */
		u8 db, rhrb; /* Receive holding register (b) */
		u8 dc, r3;   /* reserved */
		u8 dd, ip;   /* Input port register of block */
		u8 de, ctg;  /* Start counter timer of block */
		u8 df, cts;  /* Stop counter timer of block */
	} __packed r; /* Read access */
	struct {
		u8 d0, mra;  /* Mode register 1/2 (a) */
		u8 d1, csra; /* Clock select register (a) */
		u8 d2, cra;  /* Command register (a) */
		u8 d3, thra; /* Transmit holding register (a) */
		u8 d4, acr;  /* Auxiliary control register of block */
		u8 d5, imr;  /* Interrupt mask register of block  */
		u8 d6, ctu;  /* Counter timer upper register of block */
		u8 d7, ctl;  /* Counter timer lower register of block */
		u8 d8, mrb;  /* Mode register 1/2 (b) */
		u8 d9, csrb; /* Clock select register (a) */
		u8 da, crb;  /* Command register (b) */
		u8 db, thrb; /* Transmit holding register (b) */
		u8 dc, r1;   /* reserved */
		u8 dd, opcr; /* Output port configuration register of block */
		u8 de, r2;   /* reserved */
		u8 df, r3;   /* reserved */
	} __packed w; /* Write access */
};

#define MR1_CHRL_5_BITS             (0x0 << 0)
#define MR1_CHRL_6_BITS             (0x1 << 0)
#define MR1_CHRL_7_BITS             (0x2 << 0)
#define MR1_CHRL_8_BITS             (0x3 << 0)
#define MR1_PARITY_EVEN             (0x1 << 2)
#define MR1_PARITY_ODD              (0x0 << 2)
#define MR1_PARITY_ON               (0x0 << 3)
#define MR1_PARITY_FORCE            (0x1 << 3)
#define MR1_PARITY_OFF              (0x2 << 3)
#define MR1_PARITY_SPECIAL          (0x3 << 3)
#define MR1_ERROR_CHAR              (0x0 << 5)
#define MR1_ERROR_BLOCK             (0x1 << 5)
#define MR1_RxINT_RxRDY             (0x0 << 6)
#define MR1_RxINT_FFULL             (0x1 << 6)
#define MR1_RxRTS_CONTROL_ON        (0x1 << 7)
#define MR1_RxRTS_CONTROL_OFF       (0x0 << 7)

#define MR2_STOP_BITS_LENGTH_1      (0x7 << 0)
#define MR2_STOP_BITS_LENGTH_2      (0xF << 0)
#define MR2_CTS_ENABLE_TX_ON        (0x1 << 4)
#define MR2_CTS_ENABLE_TX_OFF       (0x0 << 4)
#define MR2_TxRTS_CONTROL_ON        (0x1 << 5)
#define MR2_TxRTS_CONTROL_OFF       (0x0 << 5)
#define MR2_CH_MODE_NORMAL          (0x0 << 6)
#define MR2_CH_MODE_ECHO            (0x1 << 6)
#define MR2_CH_MODE_LOCAL           (0x2 << 6)
#define MR2_CH_MODE_REMOTE          (0x3 << 6)

#define CR_ENABLE_RX                (0x1 << 0)
#define CR_DISABLE_RX               (0x1 << 1)
#define CR_ENABLE_TX                (0x1 << 2)
#define CR_DISABLE_TX               (0x1 << 3)
#define CR_CMD_RESET_MR             (0x1 << 4)
#define CR_CMD_RESET_RX             (0x2 << 4)
#define CR_CMD_RESET_TX             (0x3 << 4)
#define CR_CMD_RESET_ERR_STATUS     (0x4 << 4)
#define CR_CMD_RESET_BREAK_CHANGE   (0x5 << 4)
#define CR_CMD_START_BREAK          (0x6 << 4)
#define CR_CMD_STOP_BREAK           (0x7 << 4)
#define CR_CMD_ASSERT_RTSN          (0x8 << 4)
#define CR_CMD_NEGATE_RTSN          (0x9 << 4)
#define CR_CMD_SET_TIMEOUT_MODE     (0xA << 4)
#define CR_CMD_DISABLE_TIMEOUT_MODE (0xC << 4)

#define SR_RX_READY                 (0x1 << 0)
#define SR_FIFO_FULL                (0x1 << 1)
#define SR_TX_READY                 (0x1 << 2)
#define SR_TX_EMPTY                 (0x1 << 3)
#define SR_OVERRUN_ERROR            (0x1 << 4)
#define SR_PARITY_ERROR             (0x1 << 5)
#define SR_FRAMING_ERROR            (0x1 << 6)
#define SR_RECEIVED_BREAK           (0x1 << 7)

#define SR_ERROR                    (0xF0)

#define ACR_DELTA_IP0_IRQ_EN        (0x1 << 0)
#define ACR_DELTA_IP1_IRQ_EN        (0x1 << 1)
#define ACR_DELTA_IP2_IRQ_EN        (0x1 << 2)
#define ACR_DELTA_IP3_IRQ_EN        (0x1 << 3)
#define ACR_CT_Mask                 (0x7 << 4)
#define ACR_CExt                    (0x0 << 4)
#define ACR_CTxCA                   (0x1 << 4)
#define ACR_CTxCB                   (0x2 << 4)
#define ACR_CClk16                  (0x3 << 4)
#define ACR_TExt                    (0x4 << 4)
#define ACR_TExt16                  (0x5 << 4)
#define ACR_TClk                    (0x6 << 4)
#define ACR_TClk16                  (0x7 << 4)
#define ACR_BRG_SET1                (0x0 << 7)
#define ACR_BRG_SET2                (0x1 << 7)

#define TX_CLK_75                   (0x0 << 0)
#define TX_CLK_110                  (0x1 << 0)
#define TX_CLK_38400                (0x2 << 0)
#define TX_CLK_150                  (0x3 << 0)
#define TX_CLK_300                  (0x4 << 0)
#define TX_CLK_600                  (0x5 << 0)
#define TX_CLK_1200                 (0x6 << 0)
#define TX_CLK_2000                 (0x7 << 0)
#define TX_CLK_2400                 (0x8 << 0)
#define TX_CLK_4800                 (0x9 << 0)
#define TX_CLK_1800                 (0xA << 0)
#define TX_CLK_9600                 (0xB << 0)
#define TX_CLK_19200                (0xC << 0)
#define RX_CLK_75                   (0x0 << 4)
#define RX_CLK_110                  (0x1 << 4)
#define RX_CLK_38400                (0x2 << 4)
#define RX_CLK_150                  (0x3 << 4)
#define RX_CLK_300                  (0x4 << 4)
#define RX_CLK_600                  (0x5 << 4)
#define RX_CLK_1200                 (0x6 << 4)
#define RX_CLK_2000                 (0x7 << 4)
#define RX_CLK_2400                 (0x8 << 4)
#define RX_CLK_4800                 (0x9 << 4)
#define RX_CLK_1800                 (0xA << 4)
#define RX_CLK_9600                 (0xB << 4)
#define RX_CLK_19200                (0xC << 4)

#define OPCR_MPOa_RTSN              (0x0 << 0)
#define OPCR_MPOa_C_TO              (0x1 << 0)
#define OPCR_MPOa_TxC1X             (0x2 << 0)
#define OPCR_MPOa_TxC16X            (0x3 << 0)
#define OPCR_MPOa_RxC1X             (0x4 << 0)
#define OPCR_MPOa_RxC16X            (0x5 << 0)
#define OPCR_MPOa_TxRDY             (0x6 << 0)
#define OPCR_MPOa_RxRDY_FF          (0x7 << 0)

#define OPCR_MPOb_RTSN              (0x0 << 4)
#define OPCR_MPOb_C_TO              (0x1 << 4)
#define OPCR_MPOb_TxC1X             (0x2 << 4)
#define OPCR_MPOb_TxC16X            (0x3 << 4)
#define OPCR_MPOb_RxC1X             (0x4 << 4)
#define OPCR_MPOb_RxC16X            (0x5 << 4)
#define OPCR_MPOb_TxRDY             (0x6 << 4)
#define OPCR_MPOb_RxRDY_FF          (0x7 << 4)

#define OPCR_MPP_INPUT              (0x0 << 7)
#define OPCR_MPP_OUTPUT             (0x1 << 7)

#define IMR_TxRDY_A                 (0x1 << 0)
#define IMR_RxRDY_FFULL_A           (0x1 << 1)
#define IMR_DELTA_BREAK_A           (0x1 << 2)
#define IMR_COUNTER_READY           (0x1 << 3)
#define IMR_TxRDY_B                 (0x1 << 4)
#define IMR_RxRDY_FFULL_B           (0x1 << 5)
#define IMR_DELTA_BREAK_B           (0x1 << 6)
#define IMR_INPUT_PORT_CHANGE       (0x1 << 7)

#define ISR_TxRDY_A                 (0x1 << 0)
#define ISR_RxRDY_FFULL_A           (0x1 << 1)
#define ISR_DELTA_BREAK_A           (0x1 << 2)
#define ISR_COUNTER_READY           (0x1 << 3)
#define ISR_TxRDY_B                 (0x1 << 4)
#define ISR_RxRDY_FFULL_B           (0x1 << 5)
#define ISR_DELTA_BREAK_B           (0x1 << 6)
#define ISR_INPUT_PORT_CHANGE       (0x1 << 7)

#define ACK_INT_REQ0			0
#define ACK_INT_REQ1			2

#endif /* SCC2698_H_ */