drivers/staging/comedi/drivers/ni_mio_cs.c

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