Samuel Iglesias Gonsalvez | ba4dc61 | 2012-05-09 15:27:21 +0200 | [diff] [blame] | 1 | /* |
| 2 | * scc2698.h |
| 3 | * |
| 4 | * driver for the IPOCTAL boards |
Samuel Iglesias Gonsalvez | 7685972 | 2012-11-16 16:19:58 +0100 | [diff] [blame] | 5 | * |
| 6 | * Copyright (C) 2009-2012 CERN (www.cern.ch) |
| 7 | * Author: Nicolas Serafini, EIC2 SA |
| 8 | * Author: Samuel Iglesias Gonsalvez <siglesias@igalia.com> |
Samuel Iglesias Gonsalvez | ba4dc61 | 2012-05-09 15:27:21 +0200 | [diff] [blame] | 9 | * |
| 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 |
Samuel Iglesias Gonsalvez | 3225436 | 2012-05-11 10:17:15 +0200 | [diff] [blame] | 12 | * Software Foundation; version 2 of the License. |
Samuel Iglesias Gonsalvez | ba4dc61 | 2012-05-09 15:27:21 +0200 | [diff] [blame] | 13 | */ |
| 14 | |
| 15 | #ifndef SCC2698_H_ |
| 16 | #define SCC2698_H_ |
| 17 | |
| 18 | /* |
Jens Taprogge | 1f43d7b | 2012-09-04 17:01:12 +0200 | [diff] [blame] | 19 | * union scc2698_channel - Channel access to scc2698 IO |
Samuel Iglesias Gonsalvez | ba4dc61 | 2012-05-09 15:27:21 +0200 | [diff] [blame] | 20 | * |
| 21 | * dn value are only spacer. |
| 22 | * |
| 23 | */ |
Jens Taprogge | 1f43d7b | 2012-09-04 17:01:12 +0200 | [diff] [blame] | 24 | union scc2698_channel { |
| 25 | struct { |
| 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 */ |
| 32 | struct { |
| 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 */ |
| 39 | }; |
Samuel Iglesias Gonsalvez | ba4dc61 | 2012-05-09 15:27:21 +0200 | [diff] [blame] | 40 | |
| 41 | /* |
Jens Taprogge | 1f43d7b | 2012-09-04 17:01:12 +0200 | [diff] [blame] | 42 | * union scc2698_block - Block access to scc2698 IO |
Samuel Iglesias Gonsalvez | ba4dc61 | 2012-05-09 15:27:21 +0200 | [diff] [blame] | 43 | * |
| 44 | * The scc2698 contain 4 block. |
| 45 | * Each block containt two channel a and b. |
| 46 | * dn value are only spacer. |
| 47 | * |
| 48 | */ |
Jens Taprogge | 1f43d7b | 2012-09-04 17:01:12 +0200 | [diff] [blame] | 49 | union scc2698_block { |
| 50 | struct { |
| 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 */ |
| 68 | struct { |
| 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 */ |
| 86 | }; |
Samuel Iglesias Gonsalvez | ba4dc61 | 2012-05-09 15:27:21 +0200 | [diff] [blame] | 87 | |
| 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) |
| 104 | |
| 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) |
| 115 | |
| 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) |
| 131 | |
| 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) |
| 140 | |
| 141 | #define SR_ERROR (0xF0) |
| 142 | |
| 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) |
| 158 | |
| 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) |
| 185 | |
| 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) |
| 194 | |
| 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) |
| 203 | |
| 204 | #define OPCR_MPP_INPUT (0x0 << 7) |
| 205 | #define OPCR_MPP_OUTPUT (0x1 << 7) |
| 206 | |
| 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) |
| 215 | |
| 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) |
| 224 | |
Jens Taprogge | ea99114 | 2012-09-13 12:32:20 +0200 | [diff] [blame] | 225 | #define ACK_INT_REQ0 0 |
| 226 | #define ACK_INT_REQ1 2 |
| 227 | |
Samuel Iglesias Gonsalvez | ba4dc61 | 2012-05-09 15:27:21 +0200 | [diff] [blame] | 228 | #endif /* SCC2698_H_ */ |