ni_mio_cs.c revision 1ac71e5a35eebee60cdcf15b3980bd94498f037b
1/* 2 comedi/drivers/ni_mio_cs.c 3 Hardware driver for NI PCMCIA MIO E series cards 4 5 COMEDI - Linux Control and Measurement Device Interface 6 Copyright (C) 1997-2000 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 You should have received a copy of the GNU General Public License 19 along with this program; if not, write to the Free Software 20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 21 22*/ 23/* 24Driver: ni_mio_cs 25Description: National Instruments DAQCard E series 26Author: ds 27Status: works 28Devices: [National Instruments] DAQCard-AI-16XE-50 (ni_mio_cs), 29 DAQCard-AI-16E-4, DAQCard-6062E, DAQCard-6024E, DAQCard-6036E 30Updated: Thu Oct 23 19:43:17 CDT 2003 31 32See the notes in the ni_atmio.o driver. 33*/ 34/* 35 The real guts of the driver is in ni_mio_common.c, which is 36 included by all the E series drivers. 37 38 References for specifications: 39 40 341080a.pdf DAQCard E Series Register Level Programmer Manual 41 42*/ 43 44#include "../comedidev.h" 45 46#include <linux/delay.h> 47 48#include "ni_stc.h" 49#include "8255.h" 50 51#include <pcmcia/cistpl.h> 52#include <pcmcia/ds.h> 53 54#undef DEBUG 55 56#define ATMIO 1 57#undef PCIMIO 58 59/* 60 * AT specific setup 61 */ 62 63#define NI_SIZE 0x20 64 65#define MAX_N_CALDACS 32 66 67static const struct ni_board_struct ni_boards[] = { 68 {.device_id = 0x010d, 69 .name = "DAQCard-ai-16xe-50", 70 .n_adchan = 16, 71 .adbits = 16, 72 .ai_fifo_depth = 1024, 73 .alwaysdither = 0, 74 .gainlkup = ai_gain_8, 75 .ai_speed = 5000, 76 .n_aochan = 0, 77 .aobits = 0, 78 .ao_fifo_depth = 0, 79 .ao_unipolar = 0, 80 .num_p0_dio_channels = 8, 81 .has_8255 = 0, 82 .caldac = {dac8800, dac8043}, 83 }, 84 {.device_id = 0x010c, 85 .name = "DAQCard-ai-16e-4", 86 .n_adchan = 16, 87 .adbits = 12, 88 .ai_fifo_depth = 1024, 89 .alwaysdither = 0, 90 .gainlkup = ai_gain_16, 91 .ai_speed = 4000, 92 .n_aochan = 0, 93 .aobits = 0, 94 .ao_fifo_depth = 0, 95 .ao_unipolar = 0, 96 .num_p0_dio_channels = 8, 97 .has_8255 = 0, 98 .caldac = {mb88341}, /* verified */ 99 }, 100 {.device_id = 0x02c4, 101 .name = "DAQCard-6062E", 102 .n_adchan = 16, 103 .adbits = 12, 104 .ai_fifo_depth = 8192, 105 .alwaysdither = 0, 106 .gainlkup = ai_gain_16, 107 .ai_speed = 2000, 108 .n_aochan = 2, 109 .aobits = 12, 110 .ao_fifo_depth = 2048, 111 .ao_range_table = &range_bipolar10, 112 .ao_unipolar = 0, 113 .ao_speed = 1176, 114 .num_p0_dio_channels = 8, 115 .has_8255 = 0, 116 .caldac = {ad8804_debug}, /* verified */ 117 }, 118 {.device_id = 0x075e, 119 .name = "DAQCard-6024E", /* specs incorrect! */ 120 .n_adchan = 16, 121 .adbits = 12, 122 .ai_fifo_depth = 1024, 123 .alwaysdither = 0, 124 .gainlkup = ai_gain_4, 125 .ai_speed = 5000, 126 .n_aochan = 2, 127 .aobits = 12, 128 .ao_fifo_depth = 0, 129 .ao_range_table = &range_bipolar10, 130 .ao_unipolar = 0, 131 .ao_speed = 1000000, 132 .num_p0_dio_channels = 8, 133 .has_8255 = 0, 134 .caldac = {ad8804_debug}, 135 }, 136 {.device_id = 0x0245, 137 .name = "DAQCard-6036E", /* specs incorrect! */ 138 .n_adchan = 16, 139 .adbits = 16, 140 .ai_fifo_depth = 1024, 141 .alwaysdither = 1, 142 .gainlkup = ai_gain_4, 143 .ai_speed = 5000, 144 .n_aochan = 2, 145 .aobits = 16, 146 .ao_fifo_depth = 0, 147 .ao_range_table = &range_bipolar10, 148 .ao_unipolar = 0, 149 .ao_speed = 1000000, 150 .num_p0_dio_channels = 8, 151 .has_8255 = 0, 152 .caldac = {ad8804_debug}, 153 }, 154#if 0 155 {.device_id = 0x0000, /* unknown */ 156 .name = "DAQCard-6715", 157 .n_adchan = 0, 158 .n_aochan = 8, 159 .aobits = 12, 160 .ao_671x = 8192, 161 .num_p0_dio_channels = 8, 162 .caldac = {mb88341, mb88341}, 163 }, 164#endif 165 /* N.B. Update ni_mio_cs_ids[] when entries added above. */ 166}; 167 168#define interrupt_pin(a) 0 169 170#define IRQ_POLARITY 1 171 172#define NI_E_IRQ_FLAGS IRQF_SHARED 173 174struct ni_private { 175 176 struct pcmcia_device *link; 177 178 NI_PRIVATE_COMMON}; 179 180#define devpriv ((struct ni_private *)dev->private) 181 182/* How we access registers */ 183 184#define ni_writel(a, b) (outl((a), (b)+dev->iobase)) 185#define ni_readl(a) (inl((a)+dev->iobase)) 186#define ni_writew(a, b) (outw((a), (b)+dev->iobase)) 187#define ni_readw(a) (inw((a)+dev->iobase)) 188#define ni_writeb(a, b) (outb((a), (b)+dev->iobase)) 189#define ni_readb(a) (inb((a)+dev->iobase)) 190 191/* How we access windowed registers */ 192 193/* We automatically take advantage of STC registers that can be 194 * read/written directly in the I/O space of the board. The 195 * DAQCard devices map the low 8 STC registers to iobase+addr*2. */ 196 197static void mio_cs_win_out(struct comedi_device *dev, uint16_t data, int addr) 198{ 199 unsigned long flags; 200 201 spin_lock_irqsave(&devpriv->window_lock, flags); 202 if (addr < 8) { 203 ni_writew(data, addr * 2); 204 } else { 205 ni_writew(addr, Window_Address); 206 ni_writew(data, Window_Data); 207 } 208 spin_unlock_irqrestore(&devpriv->window_lock, flags); 209} 210 211static uint16_t mio_cs_win_in(struct comedi_device *dev, int addr) 212{ 213 unsigned long flags; 214 uint16_t ret; 215 216 spin_lock_irqsave(&devpriv->window_lock, flags); 217 if (addr < 8) { 218 ret = ni_readw(addr * 2); 219 } else { 220 ni_writew(addr, Window_Address); 221 ret = ni_readw(Window_Data); 222 } 223 spin_unlock_irqrestore(&devpriv->window_lock, flags); 224 225 return ret; 226} 227 228static int mio_cs_attach(struct comedi_device *dev, 229 struct comedi_devconfig *it); 230static int mio_cs_detach(struct comedi_device *dev); 231static struct comedi_driver driver_ni_mio_cs = { 232 .driver_name = "ni_mio_cs", 233 .module = THIS_MODULE, 234 .attach = mio_cs_attach, 235 .detach = mio_cs_detach, 236}; 237 238#include "ni_mio_common.c" 239 240static int ni_getboardtype(struct comedi_device *dev, 241 struct pcmcia_device *link); 242 243/* clean up allocated resources */ 244/* called when driver is removed */ 245static int mio_cs_detach(struct comedi_device *dev) 246{ 247 mio_common_detach(dev); 248 249 /* PCMCIA layer frees the IO region */ 250 251 if (dev->irq) 252 free_irq(dev->irq, dev); 253 254 return 0; 255} 256 257static void mio_cs_config(struct pcmcia_device *link); 258static void cs_release(struct pcmcia_device *link); 259static void cs_detach(struct pcmcia_device *); 260 261static struct pcmcia_device *cur_dev = NULL; 262 263static int cs_attach(struct pcmcia_device *link) 264{ 265 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_16; 266 link->resource[0]->end = 16; 267 link->config_flags |= CONF_ENABLE_IRQ; 268 269 cur_dev = link; 270 271 mio_cs_config(link); 272 273 return 0; 274} 275 276static void cs_release(struct pcmcia_device *link) 277{ 278 pcmcia_disable_device(link); 279} 280 281static void cs_detach(struct pcmcia_device *link) 282{ 283 DPRINTK("cs_detach(link=%p)\n", link); 284 285 cs_release(link); 286} 287 288static int mio_cs_suspend(struct pcmcia_device *link) 289{ 290 DPRINTK("pm suspend\n"); 291 292 return 0; 293} 294 295static int mio_cs_resume(struct pcmcia_device *link) 296{ 297 DPRINTK("pm resume\n"); 298 return 0; 299} 300 301 302static int mio_pcmcia_config_loop(struct pcmcia_device *p_dev, 303 cistpl_cftable_entry_t *cfg, 304 cistpl_cftable_entry_t *dflt, 305 unsigned int vcc, 306 void *priv_data) 307{ 308 int base, ret; 309 310 p_dev->resource[0]->end = cfg->io.win[0].len; 311 p_dev->io_lines = cfg->io.flags & CISTPL_IO_LINES_MASK; 312 313 for (base = 0x000; base < 0x400; base += 0x20) { 314 p_dev->resource[0]->start = base; 315 ret = pcmcia_request_io(p_dev); 316 if (!ret) 317 return 0; 318 } 319 return -ENODEV; 320} 321 322 323static void mio_cs_config(struct pcmcia_device *link) 324{ 325 int ret; 326 327 DPRINTK("mio_cs_config(link=%p)\n", link); 328 329 ret = pcmcia_loop_config(link, mio_pcmcia_config_loop, NULL); 330 if (ret) { 331 dev_warn(&link->dev, "no configuration found\n"); 332 return; 333 } 334 335 if (!link->irq) 336 dev_info(&link->dev, "no IRQ available\n"); 337 338 ret = pcmcia_enable_device(link); 339} 340 341static int mio_cs_attach(struct comedi_device *dev, struct comedi_devconfig *it) 342{ 343 struct pcmcia_device *link; 344 unsigned int irq; 345 int ret; 346 347 DPRINTK("mio_cs_attach(dev=%p,it=%p)\n", dev, it); 348 349 link = cur_dev; /* XXX hack */ 350 if (!link) 351 return -EIO; 352 353 dev->driver = &driver_ni_mio_cs; 354 dev->iobase = link->resource[0]->start; 355 356 irq = link->irq; 357 358 printk("comedi%d: %s: DAQCard: io 0x%04lx, irq %u, ", 359 dev->minor, dev->driver->driver_name, dev->iobase, irq); 360 361#if 0 362 { 363 int i; 364 365 printk(" board fingerprint:"); 366 for (i = 0; i < 32; i += 2) { 367 printk(" %04x %02x", inw(dev->iobase + i), 368 inb(dev->iobase + i + 1)); 369 } 370 printk("\n"); 371 printk(" board fingerprint (windowed):"); 372 for (i = 0; i < 10; i++) 373 printk(" 0x%04x", win_in(i)); 374 printk("\n"); 375 } 376#endif 377 378 dev->board_ptr = ni_boards + ni_getboardtype(dev, link); 379 380 printk(" %s", boardtype.name); 381 dev->board_name = boardtype.name; 382 383 ret = request_irq(irq, ni_E_interrupt, NI_E_IRQ_FLAGS, 384 "ni_mio_cs", dev); 385 if (ret < 0) { 386 printk(" irq not available\n"); 387 return -EINVAL; 388 } 389 dev->irq = irq; 390 391 /* allocate private area */ 392 ret = ni_alloc_private(dev); 393 if (ret < 0) 394 return ret; 395 396 devpriv->stc_writew = &mio_cs_win_out; 397 devpriv->stc_readw = &mio_cs_win_in; 398 devpriv->stc_writel = &win_out2; 399 devpriv->stc_readl = &win_in2; 400 401 ret = ni_E_init(dev, it); 402 403 if (ret < 0) 404 return ret; 405 406 return 0; 407} 408 409static int ni_getboardtype(struct comedi_device *dev, 410 struct pcmcia_device *link) 411{ 412 int i; 413 414 for (i = 0; i < n_ni_boards; i++) { 415 if (ni_boards[i].device_id == link->card_id) 416 return i; 417 } 418 419 printk("unknown board 0x%04x -- pretend it is a ", link->card_id); 420 421 return 0; 422} 423 424#ifdef MODULE 425 426static struct pcmcia_device_id ni_mio_cs_ids[] = { 427 PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010d), /* DAQCard-ai-16xe-50 */ 428 PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010c), /* DAQCard-ai-16e-4 */ 429 PCMCIA_DEVICE_MANF_CARD(0x010b, 0x02c4), /* DAQCard-6062E */ 430 PCMCIA_DEVICE_MANF_CARD(0x010b, 0x075e), /* DAQCard-6024E */ 431 PCMCIA_DEVICE_MANF_CARD(0x010b, 0x0245), /* DAQCard-6036E */ 432 PCMCIA_DEVICE_NULL 433}; 434 435MODULE_DEVICE_TABLE(pcmcia, ni_mio_cs_ids); 436MODULE_AUTHOR("David A. Schleef <ds@schleef.org>"); 437MODULE_DESCRIPTION("Comedi driver for National Instruments DAQCard E series"); 438MODULE_LICENSE("GPL"); 439 440struct pcmcia_driver ni_mio_cs_driver = { 441 .probe = &cs_attach, 442 .remove = &cs_detach, 443 .suspend = &mio_cs_suspend, 444 .resume = &mio_cs_resume, 445 .id_table = ni_mio_cs_ids, 446 .owner = THIS_MODULE, 447 .drv = { 448 .name = "ni_mio_cs", 449 }, 450}; 451 452int init_module(void) 453{ 454 pcmcia_register_driver(&ni_mio_cs_driver); 455 comedi_driver_register(&driver_ni_mio_cs); 456 return 0; 457} 458 459void cleanup_module(void) 460{ 461 pcmcia_unregister_driver(&ni_mio_cs_driver); 462#if 0 463 while (cur_dev != NULL) 464 cs_detach(cur_dev->handle); 465#endif 466 comedi_driver_unregister(&driver_ni_mio_cs); 467} 468#endif 469