1/* 2 comedi/drivers/ni_atmio.c 3 Hardware driver for NI AT-MIO E series cards 4 5 COMEDI - Linux Control and Measurement Device Interface 6 Copyright (C) 1997-2001 David A. Schleef <ds@schleef.org> 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 2 of the License, or 11 (at your option) any later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17*/ 18/* 19Driver: ni_atmio 20Description: National Instruments AT-MIO-E series 21Author: ds 22Devices: [National Instruments] AT-MIO-16E-1 (ni_atmio), 23 AT-MIO-16E-2, AT-MIO-16E-10, AT-MIO-16DE-10, AT-MIO-64E-3, 24 AT-MIO-16XE-50, AT-MIO-16XE-10, AT-AI-16XE-10 25Status: works 26Updated: Thu May 1 20:03:02 CDT 2003 27 28The driver has 2.6 kernel isapnp support, and 29will automatically probe for a supported board if the 30I/O base is left unspecified with comedi_config. 31However, many of 32the isapnp id numbers are unknown. If your board is not 33recognized, please send the output of 'cat /proc/isapnp' 34(you may need to modprobe the isa-pnp module for 35/proc/isapnp to exist) so the 36id numbers for your board can be added to the driver. 37 38Otherwise, you can use the isapnptools package to configure 39your board. Use isapnp to 40configure the I/O base and IRQ for the board, and then pass 41the same values as 42parameters in comedi_config. A sample isapnp.conf file is included 43in the etc/ directory of Comedilib. 44 45Comedilib includes a utility to autocalibrate these boards. The 46boards seem to boot into a state where the all calibration DACs 47are at one extreme of their range, thus the default calibration 48is terrible. Calibration at boot is strongly encouraged. 49 50To use the extended digital I/O on some of the boards, enable the 518255 driver when configuring the Comedi source tree. 52 53External triggering is supported for some events. The channel index 54(scan_begin_arg, etc.) maps to PFI0 - PFI9. 55 56Some of the more esoteric triggering possibilities of these boards 57are not supported. 58*/ 59/* 60 The real guts of the driver is in ni_mio_common.c, which is included 61 both here and in ni_pcimio.c 62 63 Interrupt support added by Truxton Fulton <trux@truxton.com> 64 65 References for specifications: 66 67 340747b.pdf Register Level Programmer Manual (obsolete) 68 340747c.pdf Register Level Programmer Manual (new) 69 DAQ-STC reference manual 70 71 Other possibly relevant info: 72 73 320517c.pdf User manual (obsolete) 74 320517f.pdf User manual (new) 75 320889a.pdf delete 76 320906c.pdf maximum signal ratings 77 321066a.pdf about 16x 78 321791a.pdf discontinuation of at-mio-16e-10 rev. c 79 321808a.pdf about at-mio-16e-10 rev P 80 321837a.pdf discontinuation of at-mio-16de-10 rev d 81 321838a.pdf about at-mio-16de-10 rev N 82 83 ISSUES: 84 85 need to deal with external reference for DAC, and other DAC 86 properties in board properties 87 88 deal with at-mio-16de-10 revision D to N changes, etc. 89 90*/ 91 92#include <linux/module.h> 93#include <linux/interrupt.h> 94#include "../comedidev.h" 95 96#include <linux/isapnp.h> 97 98#include "ni_stc.h" 99#include "8255.h" 100 101/* 102 * AT specific setup 103 */ 104 105static const struct ni_board_struct ni_boards[] = { 106 { 107 .name = "at-mio-16e-1", 108 .device_id = 44, 109 .isapnp_id = 0x0000, /* XXX unknown */ 110 .n_adchan = 16, 111 .ai_maxdata = 0x0fff, 112 .ai_fifo_depth = 8192, 113 .gainlkup = ai_gain_16, 114 .ai_speed = 800, 115 .n_aochan = 2, 116 .ao_maxdata = 0x0fff, 117 .ao_fifo_depth = 2048, 118 .ao_range_table = &range_ni_E_ao_ext, 119 .ao_speed = 1000, 120 .caldac = { mb88341 }, 121 }, { 122 .name = "at-mio-16e-2", 123 .device_id = 25, 124 .isapnp_id = 0x1900, 125 .n_adchan = 16, 126 .ai_maxdata = 0x0fff, 127 .ai_fifo_depth = 2048, 128 .gainlkup = ai_gain_16, 129 .ai_speed = 2000, 130 .n_aochan = 2, 131 .ao_maxdata = 0x0fff, 132 .ao_fifo_depth = 2048, 133 .ao_range_table = &range_ni_E_ao_ext, 134 .ao_speed = 1000, 135 .caldac = { mb88341 }, 136 }, { 137 .name = "at-mio-16e-10", 138 .device_id = 36, 139 .isapnp_id = 0x2400, 140 .n_adchan = 16, 141 .ai_maxdata = 0x0fff, 142 .ai_fifo_depth = 512, 143 .gainlkup = ai_gain_16, 144 .ai_speed = 10000, 145 .n_aochan = 2, 146 .ao_maxdata = 0x0fff, 147 .ao_range_table = &range_ni_E_ao_ext, 148 .ao_speed = 10000, 149 .caldac = { ad8804_debug }, 150 }, { 151 .name = "at-mio-16de-10", 152 .device_id = 37, 153 .isapnp_id = 0x2500, 154 .n_adchan = 16, 155 .ai_maxdata = 0x0fff, 156 .ai_fifo_depth = 512, 157 .gainlkup = ai_gain_16, 158 .ai_speed = 10000, 159 .n_aochan = 2, 160 .ao_maxdata = 0x0fff, 161 .ao_range_table = &range_ni_E_ao_ext, 162 .ao_speed = 10000, 163 .caldac = { ad8804_debug }, 164 .has_8255 = 1, 165 }, { 166 .name = "at-mio-64e-3", 167 .device_id = 38, 168 .isapnp_id = 0x2600, 169 .n_adchan = 64, 170 .ai_maxdata = 0x0fff, 171 .ai_fifo_depth = 2048, 172 .gainlkup = ai_gain_16, 173 .ai_speed = 2000, 174 .n_aochan = 2, 175 .ao_maxdata = 0x0fff, 176 .ao_fifo_depth = 2048, 177 .ao_range_table = &range_ni_E_ao_ext, 178 .ao_speed = 1000, 179 .caldac = { ad8804_debug }, 180 }, { 181 .name = "at-mio-16xe-50", 182 .device_id = 39, 183 .isapnp_id = 0x2700, 184 .n_adchan = 16, 185 .ai_maxdata = 0xffff, 186 .ai_fifo_depth = 512, 187 .alwaysdither = 1, 188 .gainlkup = ai_gain_8, 189 .ai_speed = 50000, 190 .n_aochan = 2, 191 .ao_maxdata = 0x0fff, 192 .ao_range_table = &range_bipolar10, 193 .ao_speed = 50000, 194 .caldac = { dac8800, dac8043 }, 195 }, { 196 .name = "at-mio-16xe-10", 197 .device_id = 50, 198 .isapnp_id = 0x0000, /* XXX unknown */ 199 .n_adchan = 16, 200 .ai_maxdata = 0xffff, 201 .ai_fifo_depth = 512, 202 .alwaysdither = 1, 203 .gainlkup = ai_gain_14, 204 .ai_speed = 10000, 205 .n_aochan = 2, 206 .ao_maxdata = 0xffff, 207 .ao_fifo_depth = 2048, 208 .ao_range_table = &range_ni_E_ao_ext, 209 .ao_speed = 1000, 210 .caldac = { dac8800, dac8043, ad8522 }, 211 }, { 212 .name = "at-ai-16xe-10", 213 .device_id = 51, 214 .isapnp_id = 0x0000, /* XXX unknown */ 215 .n_adchan = 16, 216 .ai_maxdata = 0xffff, 217 .ai_fifo_depth = 512, 218 .alwaysdither = 1, /* unknown */ 219 .gainlkup = ai_gain_14, 220 .ai_speed = 10000, 221 .caldac = { dac8800, dac8043, ad8522 }, 222 }, 223}; 224 225static const int ni_irqpin[] = { 226 -1, -1, -1, 0, 1, 2, -1, 3, -1, -1, 4, 5, 6, -1, -1, 7 227}; 228 229#include "ni_mio_common.c" 230 231static struct pnp_device_id device_ids[] = { 232 {.id = "NIC1900", .driver_data = 0}, 233 {.id = "NIC2400", .driver_data = 0}, 234 {.id = "NIC2500", .driver_data = 0}, 235 {.id = "NIC2600", .driver_data = 0}, 236 {.id = "NIC2700", .driver_data = 0}, 237 {.id = ""} 238}; 239 240MODULE_DEVICE_TABLE(pnp, device_ids); 241 242static int ni_isapnp_find_board(struct pnp_dev **dev) 243{ 244 struct pnp_dev *isapnp_dev = NULL; 245 int i; 246 247 for (i = 0; i < ARRAY_SIZE(ni_boards); i++) { 248 isapnp_dev = pnp_find_dev(NULL, 249 ISAPNP_VENDOR('N', 'I', 'C'), 250 ISAPNP_FUNCTION(ni_boards[i]. 251 isapnp_id), NULL); 252 253 if (isapnp_dev == NULL || isapnp_dev->card == NULL) 254 continue; 255 256 if (pnp_device_attach(isapnp_dev) < 0) 257 continue; 258 259 if (pnp_activate_dev(isapnp_dev) < 0) { 260 pnp_device_detach(isapnp_dev); 261 return -EAGAIN; 262 } 263 264 if (!pnp_port_valid(isapnp_dev, 0) || 265 !pnp_irq_valid(isapnp_dev, 0)) { 266 pnp_device_detach(isapnp_dev); 267 return -ENOMEM; 268 } 269 break; 270 } 271 if (i == ARRAY_SIZE(ni_boards)) 272 return -ENODEV; 273 *dev = isapnp_dev; 274 return 0; 275} 276 277static int ni_getboardtype(struct comedi_device *dev) 278{ 279 int device_id = ni_read_eeprom(dev, 511); 280 int i; 281 282 for (i = 0; i < ARRAY_SIZE(ni_boards); i++) { 283 if (ni_boards[i].device_id == device_id) 284 return i; 285 286 } 287 if (device_id == 255) 288 dev_err(dev->class_dev, "can't find board\n"); 289 else if (device_id == 0) 290 dev_err(dev->class_dev, 291 "EEPROM read error (?) or device not found\n"); 292 else 293 dev_err(dev->class_dev, 294 "unknown device ID %d -- contact author\n", device_id); 295 296 return -1; 297} 298 299static int ni_atmio_attach(struct comedi_device *dev, 300 struct comedi_devconfig *it) 301{ 302 const struct ni_board_struct *boardtype; 303 struct ni_private *devpriv; 304 struct pnp_dev *isapnp_dev; 305 int ret; 306 unsigned long iobase; 307 int board; 308 unsigned int irq; 309 310 ret = ni_alloc_private(dev); 311 if (ret) 312 return ret; 313 devpriv = dev->private; 314 315 iobase = it->options[0]; 316 irq = it->options[1]; 317 isapnp_dev = NULL; 318 if (iobase == 0) { 319 ret = ni_isapnp_find_board(&isapnp_dev); 320 if (ret < 0) 321 return ret; 322 323 iobase = pnp_port_start(isapnp_dev, 0); 324 irq = pnp_irq(isapnp_dev, 0); 325 comedi_set_hw_dev(dev, &isapnp_dev->dev); 326 } 327 328 ret = comedi_request_region(dev, iobase, 0x20); 329 if (ret) 330 return ret; 331 332 /* get board type */ 333 334 board = ni_getboardtype(dev); 335 if (board < 0) 336 return -EIO; 337 338 dev->board_ptr = ni_boards + board; 339 boardtype = dev->board_ptr; 340 dev->board_name = boardtype->name; 341 342 /* irq stuff */ 343 344 if (irq != 0) { 345 if (irq > 15 || ni_irqpin[irq] == -1) 346 return -EINVAL; 347 ret = request_irq(irq, ni_E_interrupt, 0, 348 dev->board_name, dev); 349 if (ret < 0) 350 return -EINVAL; 351 dev->irq = irq; 352 } 353 354 /* generic E series stuff in ni_mio_common.c */ 355 356 ret = ni_E_init(dev, ni_irqpin[dev->irq], 0); 357 if (ret < 0) 358 return ret; 359 360 361 return 0; 362} 363 364static void ni_atmio_detach(struct comedi_device *dev) 365{ 366 struct pnp_dev *isapnp_dev; 367 368 mio_common_detach(dev); 369 comedi_legacy_detach(dev); 370 371 isapnp_dev = dev->hw_dev ? to_pnp_dev(dev->hw_dev) : NULL; 372 if (isapnp_dev) 373 pnp_device_detach(isapnp_dev); 374} 375 376static struct comedi_driver ni_atmio_driver = { 377 .driver_name = "ni_atmio", 378 .module = THIS_MODULE, 379 .attach = ni_atmio_attach, 380 .detach = ni_atmio_detach, 381}; 382module_comedi_driver(ni_atmio_driver); 383