4 * driver for the IPOCTAL boards
6 * Copyright (C) 2009-2012 CERN (www.cern.ch)
7 * Author: Nicolas Serafini, EIC2 SA
8 * Author: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the Free
12 * Software Foundation; version 2 of the License.
19 * union scc2698_channel - Channel access to scc2698 IO
21 * dn value are only spacer.
24 union scc2698_channel {
26 u8 d0, mr; /* Mode register 1/2*/
27 u8 d1, sr; /* Status register */
28 u8 d2, r1; /* reserved */
29 u8 d3, rhr; /* Receive holding register (R) */
30 u8 junk[8]; /* other crap for block control */
31 } __packed r; /* Read access */
33 u8 d0, mr; /* Mode register 1/2 */
34 u8 d1, csr; /* Clock select register */
35 u8 d2, cr; /* Command register */
36 u8 d3, thr; /* Transmit holding register */
37 u8 junk[8]; /* other crap for block control */
38 } __packed w; /* Write access */
42 * union scc2698_block - Block access to scc2698 IO
44 * The scc2698 contain 4 block.
45 * Each block containt two channel a and b.
46 * dn value are only spacer.
51 u8 d0, mra; /* Mode register 1/2 (a) */
52 u8 d1, sra; /* Status register (a) */
53 u8 d2, r1; /* reserved */
54 u8 d3, rhra; /* Receive holding register (a) */
55 u8 d4, ipcr; /* Input port change register of block */
56 u8 d5, isr; /* Interrupt status register of block */
57 u8 d6, ctur; /* Counter timer upper register of block */
58 u8 d7, ctlr; /* Counter timer lower register of block */
59 u8 d8, mrb; /* Mode register 1/2 (b) */
60 u8 d9, srb; /* Status register (b) */
61 u8 da, r2; /* reserved */
62 u8 db, rhrb; /* Receive holding register (b) */
63 u8 dc, r3; /* reserved */
64 u8 dd, ip; /* Input port register of block */
65 u8 de, ctg; /* Start counter timer of block */
66 u8 df, cts; /* Stop counter timer of block */
67 } __packed r; /* Read access */
69 u8 d0, mra; /* Mode register 1/2 (a) */
70 u8 d1, csra; /* Clock select register (a) */
71 u8 d2, cra; /* Command register (a) */
72 u8 d3, thra; /* Transmit holding register (a) */
73 u8 d4, acr; /* Auxiliary control register of block */
74 u8 d5, imr; /* Interrupt mask register of block */
75 u8 d6, ctu; /* Counter timer upper register of block */
76 u8 d7, ctl; /* Counter timer lower register of block */
77 u8 d8, mrb; /* Mode register 1/2 (b) */
78 u8 d9, csrb; /* Clock select register (a) */
79 u8 da, crb; /* Command register (b) */
80 u8 db, thrb; /* Transmit holding register (b) */
81 u8 dc, r1; /* reserved */
82 u8 dd, opcr; /* Output port configuration register of block */
83 u8 de, r2; /* reserved */
84 u8 df, r3; /* reserved */
85 } __packed w; /* Write access */
88 #define MR1_CHRL_5_BITS (0x0 << 0)
89 #define MR1_CHRL_6_BITS (0x1 << 0)
90 #define MR1_CHRL_7_BITS (0x2 << 0)
91 #define MR1_CHRL_8_BITS (0x3 << 0)
92 #define MR1_PARITY_EVEN (0x1 << 2)
93 #define MR1_PARITY_ODD (0x0 << 2)
94 #define MR1_PARITY_ON (0x0 << 3)
95 #define MR1_PARITY_FORCE (0x1 << 3)
96 #define MR1_PARITY_OFF (0x2 << 3)
97 #define MR1_PARITY_SPECIAL (0x3 << 3)
98 #define MR1_ERROR_CHAR (0x0 << 5)
99 #define MR1_ERROR_BLOCK (0x1 << 5)
100 #define MR1_RxINT_RxRDY (0x0 << 6)
101 #define MR1_RxINT_FFULL (0x1 << 6)
102 #define MR1_RxRTS_CONTROL_ON (0x1 << 7)
103 #define MR1_RxRTS_CONTROL_OFF (0x0 << 7)
105 #define MR2_STOP_BITS_LENGTH_1 (0x7 << 0)
106 #define MR2_STOP_BITS_LENGTH_2 (0xF << 0)
107 #define MR2_CTS_ENABLE_TX_ON (0x1 << 4)
108 #define MR2_CTS_ENABLE_TX_OFF (0x0 << 4)
109 #define MR2_TxRTS_CONTROL_ON (0x1 << 5)
110 #define MR2_TxRTS_CONTROL_OFF (0x0 << 5)
111 #define MR2_CH_MODE_NORMAL (0x0 << 6)
112 #define MR2_CH_MODE_ECHO (0x1 << 6)
113 #define MR2_CH_MODE_LOCAL (0x2 << 6)
114 #define MR2_CH_MODE_REMOTE (0x3 << 6)
116 #define CR_ENABLE_RX (0x1 << 0)
117 #define CR_DISABLE_RX (0x1 << 1)
118 #define CR_ENABLE_TX (0x1 << 2)
119 #define CR_DISABLE_TX (0x1 << 3)
120 #define CR_CMD_RESET_MR (0x1 << 4)
121 #define CR_CMD_RESET_RX (0x2 << 4)
122 #define CR_CMD_RESET_TX (0x3 << 4)
123 #define CR_CMD_RESET_ERR_STATUS (0x4 << 4)
124 #define CR_CMD_RESET_BREAK_CHANGE (0x5 << 4)
125 #define CR_CMD_START_BREAK (0x6 << 4)
126 #define CR_CMD_STOP_BREAK (0x7 << 4)
127 #define CR_CMD_ASSERT_RTSN (0x8 << 4)
128 #define CR_CMD_NEGATE_RTSN (0x9 << 4)
129 #define CR_CMD_SET_TIMEOUT_MODE (0xA << 4)
130 #define CR_CMD_DISABLE_TIMEOUT_MODE (0xC << 4)
132 #define SR_RX_READY (0x1 << 0)
133 #define SR_FIFO_FULL (0x1 << 1)
134 #define SR_TX_READY (0x1 << 2)
135 #define SR_TX_EMPTY (0x1 << 3)
136 #define SR_OVERRUN_ERROR (0x1 << 4)
137 #define SR_PARITY_ERROR (0x1 << 5)
138 #define SR_FRAMING_ERROR (0x1 << 6)
139 #define SR_RECEIVED_BREAK (0x1 << 7)
141 #define SR_ERROR (0xF0)
143 #define ACR_DELTA_IP0_IRQ_EN (0x1 << 0)
144 #define ACR_DELTA_IP1_IRQ_EN (0x1 << 1)
145 #define ACR_DELTA_IP2_IRQ_EN (0x1 << 2)
146 #define ACR_DELTA_IP3_IRQ_EN (0x1 << 3)
147 #define ACR_CT_Mask (0x7 << 4)
148 #define ACR_CExt (0x0 << 4)
149 #define ACR_CTxCA (0x1 << 4)
150 #define ACR_CTxCB (0x2 << 4)
151 #define ACR_CClk16 (0x3 << 4)
152 #define ACR_TExt (0x4 << 4)
153 #define ACR_TExt16 (0x5 << 4)
154 #define ACR_TClk (0x6 << 4)
155 #define ACR_TClk16 (0x7 << 4)
156 #define ACR_BRG_SET1 (0x0 << 7)
157 #define ACR_BRG_SET2 (0x1 << 7)
159 #define TX_CLK_75 (0x0 << 0)
160 #define TX_CLK_110 (0x1 << 0)
161 #define TX_CLK_38400 (0x2 << 0)
162 #define TX_CLK_150 (0x3 << 0)
163 #define TX_CLK_300 (0x4 << 0)
164 #define TX_CLK_600 (0x5 << 0)
165 #define TX_CLK_1200 (0x6 << 0)
166 #define TX_CLK_2000 (0x7 << 0)
167 #define TX_CLK_2400 (0x8 << 0)
168 #define TX_CLK_4800 (0x9 << 0)
169 #define TX_CLK_1800 (0xA << 0)
170 #define TX_CLK_9600 (0xB << 0)
171 #define TX_CLK_19200 (0xC << 0)
172 #define RX_CLK_75 (0x0 << 4)
173 #define RX_CLK_110 (0x1 << 4)
174 #define RX_CLK_38400 (0x2 << 4)
175 #define RX_CLK_150 (0x3 << 4)
176 #define RX_CLK_300 (0x4 << 4)
177 #define RX_CLK_600 (0x5 << 4)
178 #define RX_CLK_1200 (0x6 << 4)
179 #define RX_CLK_2000 (0x7 << 4)
180 #define RX_CLK_2400 (0x8 << 4)
181 #define RX_CLK_4800 (0x9 << 4)
182 #define RX_CLK_1800 (0xA << 4)
183 #define RX_CLK_9600 (0xB << 4)
184 #define RX_CLK_19200 (0xC << 4)
186 #define OPCR_MPOa_RTSN (0x0 << 0)
187 #define OPCR_MPOa_C_TO (0x1 << 0)
188 #define OPCR_MPOa_TxC1X (0x2 << 0)
189 #define OPCR_MPOa_TxC16X (0x3 << 0)
190 #define OPCR_MPOa_RxC1X (0x4 << 0)
191 #define OPCR_MPOa_RxC16X (0x5 << 0)
192 #define OPCR_MPOa_TxRDY (0x6 << 0)
193 #define OPCR_MPOa_RxRDY_FF (0x7 << 0)
195 #define OPCR_MPOb_RTSN (0x0 << 4)
196 #define OPCR_MPOb_C_TO (0x1 << 4)
197 #define OPCR_MPOb_TxC1X (0x2 << 4)
198 #define OPCR_MPOb_TxC16X (0x3 << 4)
199 #define OPCR_MPOb_RxC1X (0x4 << 4)
200 #define OPCR_MPOb_RxC16X (0x5 << 4)
201 #define OPCR_MPOb_TxRDY (0x6 << 4)
202 #define OPCR_MPOb_RxRDY_FF (0x7 << 4)
204 #define OPCR_MPP_INPUT (0x0 << 7)
205 #define OPCR_MPP_OUTPUT (0x1 << 7)
207 #define IMR_TxRDY_A (0x1 << 0)
208 #define IMR_RxRDY_FFULL_A (0x1 << 1)
209 #define IMR_DELTA_BREAK_A (0x1 << 2)
210 #define IMR_COUNTER_READY (0x1 << 3)
211 #define IMR_TxRDY_B (0x1 << 4)
212 #define IMR_RxRDY_FFULL_B (0x1 << 5)
213 #define IMR_DELTA_BREAK_B (0x1 << 6)
214 #define IMR_INPUT_PORT_CHANGE (0x1 << 7)
216 #define ISR_TxRDY_A (0x1 << 0)
217 #define ISR_RxRDY_FFULL_A (0x1 << 1)
218 #define ISR_DELTA_BREAK_A (0x1 << 2)
219 #define ISR_COUNTER_READY (0x1 << 3)
220 #define ISR_TxRDY_B (0x1 << 4)
221 #define ISR_RxRDY_FFULL_B (0x1 << 5)
222 #define ISR_DELTA_BREAK_B (0x1 << 6)
223 #define ISR_INPUT_PORT_CHANGE (0x1 << 7)
225 #define ACK_INT_REQ0 0
226 #define ACK_INT_REQ1 2
228 #endif /* SCC2698_H_ */