projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /********************************************************************* |
| 2 | * | |
| 3 | * Filename: nsc-ircc.h | |
| 4 | * Version: | |
| 5 | * Description: | |
| 6 | * Status: Experimental. | |
| 7 | * Author: Dag Brattli <dagb@cs.uit.no> | |
| 8 | * Created at: Fri Nov 13 14:37:40 1998 | |
| 9 | * Modified at: Sun Jan 23 17:47:00 2000 | |
| 10 | * Modified by: Dag Brattli <dagb@cs.uit.no> | |
| 11 | * | |
| 12 | * Copyright (c) 1998-2000 Dag Brattli <dagb@cs.uit.no> | |
| 13 | * Copyright (c) 1998 Lichen Wang, <lwang@actisys.com> | |
| 14 | * Copyright (c) 1998 Actisys Corp., www.actisys.com | |
| 15 | * All Rights Reserved | |
| 16 | * | |
| 17 | * This program is free software; you can redistribute it and/or | |
| 18 | * modify it under the terms of the GNU General Public License as | |
| 19 | * published by the Free Software Foundation; either version 2 of | |
| 20 | * the License, or (at your option) any later version. | |
| 21 | * | |
| 96de0e25 | 22 | * Neither Dag Brattli nor University of Tromsø admit liability nor |
| 1da177e4 LT |
23 | * provide warranty for any of this software. This material is |
| 24 | * provided "AS-IS" and at no charge. | |
| 25 | * | |
| 26 | ********************************************************************/ | |
| 27 | ||
| 28 | #ifndef NSC_IRCC_H | |
| 29 | #define NSC_IRCC_H | |
| 30 | ||
| 31 | #include <linux/time.h> | |
| 32 | ||
| 33 | #include <linux/spinlock.h> | |
| 34 | #include <linux/pm.h> | |
| 35 | #include <linux/types.h> | |
| 36 | #include <asm/io.h> | |
| 37 | ||
| 1fa98174 MG |
38 | /* Features for chips (set in driver_data) */ |
| 39 | #define NSC_FORCE_DONGLE_TYPE9 0x00000001 | |
| 40 | ||
| 1da177e4 LT |
41 | /* DMA modes needed */ |
| 42 | #define DMA_TX_MODE 0x08 /* Mem to I/O, ++, demand. */ | |
| 43 | #define DMA_RX_MODE 0x04 /* I/O to mem, ++, demand. */ | |
| 44 | ||
| 45 | /* Config registers for the '108 */ | |
| 46 | #define CFG_108_BAIC 0x00 | |
| 47 | #define CFG_108_CSRT 0x01 | |
| 48 | #define CFG_108_MCTL 0x02 | |
| 49 | ||
| 50 | /* Config registers for the '338 */ | |
| 51 | #define CFG_338_FER 0x00 | |
| 52 | #define CFG_338_FAR 0x01 | |
| 53 | #define CFG_338_PTR 0x02 | |
| 54 | #define CFG_338_PNP0 0x1b | |
| 55 | #define CFG_338_PNP1 0x1c | |
| 56 | #define CFG_338_PNP3 0x4f | |
| 57 | ||
| 58 | /* Config registers for the '39x (in the logical device bank) */ | |
| 59 | #define CFG_39X_LDN 0x07 /* Logical device number (Super I/O bank) */ | |
| 60 | #define CFG_39X_SIOCF1 0x21 /* SuperI/O Config */ | |
| 61 | #define CFG_39X_ACT 0x30 /* Device activation */ | |
| 62 | #define CFG_39X_BASEH 0x60 /* Device base address (high bits) */ | |
| 63 | #define CFG_39X_BASEL 0x61 /* Device base address (low bits) */ | |
| 64 | #define CFG_39X_IRQNUM 0x70 /* Interrupt number & wake up enable */ | |
| 65 | #define CFG_39X_IRQSEL 0x71 /* Interrupt select (edge/level + polarity) */ | |
| 66 | #define CFG_39X_DMA0 0x74 /* DMA 0 configuration */ | |
| 67 | #define CFG_39X_DMA1 0x75 /* DMA 1 configuration */ | |
| 68 | #define CFG_39X_SPC 0xF0 /* Serial port configuration register */ | |
| 69 | ||
| 70 | /* Flags for configuration register CRF0 */ | |
| 71 | #define APEDCRC 0x02 | |
| 72 | #define ENBNKSEL 0x01 | |
| 73 | ||
| 74 | /* Set 0 */ | |
| 75 | #define TXD 0x00 /* Transmit data port */ | |
| 76 | #define RXD 0x00 /* Receive data port */ | |
| 77 | ||
| 78 | /* Register 1 */ | |
| 79 | #define IER 0x01 /* Interrupt Enable Register*/ | |
| 80 | #define IER_RXHDL_IE 0x01 /* Receiver high data level interrupt */ | |
| 81 | #define IER_TXLDL_IE 0x02 /* Transeiver low data level interrupt */ | |
| 82 | #define IER_LS_IE 0x04//* Link Status Interrupt */ | |
| 83 | #define IER_ETXURI 0x04 /* Tx underrun */ | |
| 84 | #define IER_DMA_IE 0x10 /* DMA finished interrupt */ | |
| 85 | #define IER_TXEMP_IE 0x20 | |
| 86 | #define IER_SFIF_IE 0x40 /* Frame status FIFO intr */ | |
| 87 | #define IER_TMR_IE 0x80 /* Timer event */ | |
| 88 | ||
| 89 | #define FCR 0x02 /* (write only) */ | |
| 90 | #define FCR_FIFO_EN 0x01 /* Enable FIFO's */ | |
| 91 | #define FCR_RXSR 0x02 /* Rx FIFO soft reset */ | |
| 92 | #define FCR_TXSR 0x04 /* Tx FIFO soft reset */ | |
| 93 | #define FCR_RXTH 0x40 /* Rx FIFO threshold (set to 16) */ | |
| 94 | #define FCR_TXTH 0x20 /* Tx FIFO threshold (set to 17) */ | |
| 95 | ||
| 96 | #define EIR 0x02 /* (read only) */ | |
| 97 | #define EIR_RXHDL_EV 0x01 | |
| 98 | #define EIR_TXLDL_EV 0x02 | |
| 99 | #define EIR_LS_EV 0x04 | |
| 100 | #define EIR_DMA_EV 0x10 | |
| 101 | #define EIR_TXEMP_EV 0x20 | |
| 102 | #define EIR_SFIF_EV 0x40 | |
| 103 | #define EIR_TMR_EV 0x80 | |
| 104 | ||
| 105 | #define LCR 0x03 /* Link control register */ | |
| 106 | #define LCR_WLS_8 0x03 /* 8 bits */ | |
| 107 | ||
| 108 | #define BSR 0x03 /* Bank select register */ | |
| 109 | #define BSR_BKSE 0x80 | |
| 110 | #define BANK0 LCR_WLS_8 /* Must make sure that we set 8N1 */ | |
| 111 | #define BANK1 0x80 | |
| 112 | #define BANK2 0xe0 | |
| 113 | #define BANK3 0xe4 | |
| 114 | #define BANK4 0xe8 | |
| 115 | #define BANK5 0xec | |
| 116 | #define BANK6 0xf0 | |
| 117 | #define BANK7 0xf4 | |
| 118 | ||
| 119 | #define MCR 0x04 /* Mode Control Register */ | |
| 120 | #define MCR_MODE_MASK ~(0xd0) | |
| 121 | #define MCR_UART 0x00 | |
| 122 | #define MCR_RESERVED 0x20 | |
| 123 | #define MCR_SHARP_IR 0x40 | |
| 124 | #define MCR_SIR 0x60 | |
| 125 | #define MCR_MIR 0x80 | |
| 126 | #define MCR_FIR 0xa0 | |
| 127 | #define MCR_CEIR 0xb0 | |
| 128 | #define MCR_IR_PLS 0x10 | |
| 129 | #define MCR_DMA_EN 0x04 | |
| 130 | #define MCR_EN_IRQ 0x08 | |
| 131 | #define MCR_TX_DFR 0x08 | |
| 132 | ||
| 133 | #define LSR 0x05 /* Link status register */ | |
| 134 | #define LSR_RXDA 0x01 /* Receiver data available */ | |
| 135 | #define LSR_TXRDY 0x20 /* Transmitter ready */ | |
| 136 | #define LSR_TXEMP 0x40 /* Transmitter empty */ | |
| 137 | ||
| 25985edc | 138 | #define ASCR 0x07 /* Auxiliary Status and Control Register */ |
| 1da177e4 LT |
139 | #define ASCR_RXF_TOUT 0x01 /* Rx FIFO timeout */ |
| 140 | #define ASCR_FEND_INF 0x02 /* Frame end bytes in rx FIFO */ | |
| 141 | #define ASCR_S_EOT 0x04 /* Set end of transmission */ | |
| 142 | #define ASCT_RXBSY 0x20 /* Rx busy */ | |
| 143 | #define ASCR_TXUR 0x40 /* Transeiver underrun */ | |
| 144 | #define ASCR_CTE 0x80 /* Clear timer event */ | |
| 145 | ||
| 146 | /* Bank 2 */ | |
| 147 | #define BGDL 0x00 /* Baud Generator Divisor Port (Low Byte) */ | |
| 148 | #define BGDH 0x01 /* Baud Generator Divisor Port (High Byte) */ | |
| 149 | ||
| 150 | #define ECR1 0x02 /* Extended Control Register 1 */ | |
| 151 | #define ECR1_EXT_SL 0x01 /* Extended Mode Select */ | |
| 152 | #define ECR1_DMANF 0x02 /* DMA Fairness */ | |
| 153 | #define ECR1_DMATH 0x04 /* DMA Threshold */ | |
| 154 | #define ECR1_DMASWP 0x08 /* DMA Swap */ | |
| 155 | ||
| 156 | #define EXCR2 0x04 | |
| 157 | #define EXCR2_TFSIZ 0x01 /* Rx FIFO size = 32 */ | |
| 158 | #define EXCR2_RFSIZ 0x04 /* Tx FIFO size = 32 */ | |
| 159 | ||
| 160 | #define TXFLV 0x06 /* Tx FIFO level */ | |
| 161 | #define RXFLV 0x07 /* Rx FIFO level */ | |
| 162 | ||
| 163 | /* Bank 3 */ | |
| 164 | #define MID 0x00 | |
| 165 | ||
| 166 | /* Bank 4 */ | |
| 167 | #define TMRL 0x00 /* Timer low byte */ | |
| 168 | #define TMRH 0x01 /* Timer high byte */ | |
| 169 | #define IRCR1 0x02 /* Infrared control register 1 */ | |
| 170 | #define IRCR1_TMR_EN 0x01 /* Timer enable */ | |
| 171 | ||
| 172 | #define TFRLL 0x04 | |
| 173 | #define TFRLH 0x05 | |
| 174 | #define RFRLL 0x06 | |
| 175 | #define RFRLH 0x07 | |
| 176 | ||
| 177 | /* Bank 5 */ | |
| 178 | #define IRCR2 0x04 /* Infrared control register 2 */ | |
| 179 | #define IRCR2_MDRS 0x04 /* MIR data rate select */ | |
| 180 | #define IRCR2_FEND_MD 0x20 /* */ | |
| 181 | ||
| 182 | #define FRM_ST 0x05 /* Frame status FIFO */ | |
| 183 | #define FRM_ST_VLD 0x80 /* Frame status FIFO data valid */ | |
| 184 | #define FRM_ST_ERR_MSK 0x5f | |
| 185 | #define FRM_ST_LOST_FR 0x40 /* Frame lost */ | |
| 186 | #define FRM_ST_MAX_LEN 0x10 /* Max frame len exceeded */ | |
| 187 | #define FRM_ST_PHY_ERR 0x08 /* Physical layer error */ | |
| 188 | #define FRM_ST_BAD_CRC 0x04 | |
| 189 | #define FRM_ST_OVR1 0x02 /* Rx FIFO overrun */ | |
| 190 | #define FRM_ST_OVR2 0x01 /* Frame status FIFO overrun */ | |
| 191 | ||
| 192 | #define RFLFL 0x06 | |
| 193 | #define RFLFH 0x07 | |
| 194 | ||
| 195 | /* Bank 6 */ | |
| 196 | #define IR_CFG2 0x00 | |
| 197 | #define IR_CFG2_DIS_CRC 0x02 | |
| 198 | ||
| 199 | /* Bank 7 */ | |
| 200 | #define IRM_CR 0x07 /* Infrared module control register */ | |
| 201 | #define IRM_CR_IRX_MSL 0x40 | |
| 202 | #define IRM_CR_AF_MNT 0x80 /* Automatic format */ | |
| 203 | ||
| 204 | /* NSC chip information */ | |
| 205 | struct nsc_chip { | |
| 206 | char *name; /* Name of chipset */ | |
| 207 | int cfg[3]; /* Config registers */ | |
| 208 | u_int8_t cid_index; /* Chip identification index reg */ | |
| 209 | u_int8_t cid_value; /* Chip identification expected value */ | |
| 210 | u_int8_t cid_mask; /* Chip identification revision mask */ | |
| 211 | ||
| 212 | /* Functions for probing and initializing the specific chip */ | |
| 213 | int (*probe)(struct nsc_chip *chip, chipio_t *info); | |
| 214 | int (*init)(struct nsc_chip *chip, chipio_t *info); | |
| 215 | }; | |
| 216 | typedef struct nsc_chip nsc_chip_t; | |
| 217 | ||
| 218 | /* For storing entries in the status FIFO */ | |
| 219 | struct st_fifo_entry { | |
| 220 | int status; | |
| 221 | int len; | |
| 222 | }; | |
| 223 | ||
| 224 | #define MAX_TX_WINDOW 7 | |
| 225 | #define MAX_RX_WINDOW 7 | |
| 226 | ||
| 227 | struct st_fifo { | |
| 228 | struct st_fifo_entry entries[MAX_RX_WINDOW]; | |
| 229 | int pending_bytes; | |
| 230 | int head; | |
| 231 | int tail; | |
| 232 | int len; | |
| 233 | }; | |
| 234 | ||
| 235 | struct frame_cb { | |
| 236 | void *start; /* Start of frame in DMA mem */ | |
| efad798b | 237 | int len; /* Length of frame in DMA mem */ |
| 1da177e4 LT |
238 | }; |
| 239 | ||
| 240 | struct tx_fifo { | |
| 241 | struct frame_cb queue[MAX_TX_WINDOW]; /* Info about frames in queue */ | |
| 242 | int ptr; /* Currently being sent */ | |
| efad798b | 243 | int len; /* Length of queue */ |
| 1da177e4 LT |
244 | int free; /* Next free slot */ |
| 245 | void *tail; /* Next free start in DMA mem */ | |
| 246 | }; | |
| 247 | ||
| 248 | /* Private data for each instance */ | |
| 249 | struct nsc_ircc_cb { | |
| 250 | struct st_fifo st_fifo; /* Info about received frames */ | |
| 251 | struct tx_fifo tx_fifo; /* Info about frames to be transmitted */ | |
| 252 | ||
| 253 | struct net_device *netdev; /* Yes! we are some kind of netdevice */ | |
| 1da177e4 LT |
254 | |
| 255 | struct irlap_cb *irlap; /* The link layer we are binded to */ | |
| 256 | struct qos_info qos; /* QoS capabilities for this device */ | |
| 257 | ||
| 258 | chipio_t io; /* IrDA controller information */ | |
| 259 | iobuff_t tx_buff; /* Transmit buffer */ | |
| 260 | iobuff_t rx_buff; /* Receive buffer */ | |
| 261 | dma_addr_t tx_buff_dma; | |
| 262 | dma_addr_t rx_buff_dma; | |
| 263 | ||
| 264 | __u8 ier; /* Interrupt enable register */ | |
| 265 | ||
| 266 | struct timeval stamp; | |
| 267 | struct timeval now; | |
| 268 | ||
| 269 | spinlock_t lock; /* For serializing operations */ | |
| 270 | ||
| 271 | __u32 new_speed; | |
| 272 | int index; /* Instance index */ | |
| 273 | ||
| 3b99b93b | 274 | struct platform_device *pldev; |
| 1da177e4 LT |
275 | }; |
| 276 | ||
| 277 | static inline void switch_bank(int iobase, int bank) | |
| 278 | { | |
| 279 | outb(bank, iobase+BSR); | |
| 280 | } | |
| 281 | ||
| 282 | #endif /* NSC_IRCC_H */ |