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/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
  67 static 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
 174 struct 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
 197 static 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
 211 static 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
 228 static int mio_cs_attach(struct comedi_device *dev,
 229                          struct comedi_devconfig *it);
 230 static int mio_cs_detach(struct comedi_device *dev);
 231 static 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
 240 static int ni_getboardtype(struct comedi_device *dev,
 241                            struct pcmcia_device *link);
 242
 243 /* clean up allocated resources */
 244 /* called when driver is removed */
 245 static 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
 257 static void mio_cs_config(struct pcmcia_device *link);
 258 static void cs_release(struct pcmcia_device *link);
 259 static void cs_detach(struct pcmcia_device *);
 260
 261 static struct pcmcia_device *cur_dev = NULL;
 262
 263 static int cs_attach(struct pcmcia_device *link)
 264 {
 265         cur_dev = link;
 266
 267         mio_cs_config(link);
 268
 269         return 0;
 270 }
 271
 272 static void cs_release(struct pcmcia_device *link)
 273 {
 274         pcmcia_disable_device(link);
 275 }
 276
 277 static void cs_detach(struct pcmcia_device *link)
 278 {
 279         DPRINTK("cs_detach(link=%p)\n", link);
 280
 281         cs_release(link);
 282 }
 283
 284 static int mio_cs_suspend(struct pcmcia_device *link)
 285 {
 286         DPRINTK("pm suspend\n");
 287
 288         return 0;
 289 }
 290
 291 static int mio_cs_resume(struct pcmcia_device *link)
 292 {
 293         DPRINTK("pm resume\n");
 294         return 0;
 295 }
 296
 297
 298 static int mio_pcmcia_config_loop(struct pcmcia_device *p_dev, void *priv_data)
 299 {
 300         int base, ret;
 301
 302         p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
 303         p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
 304
 305         for (base = 0x000; base < 0x400; base += 0x20) {
 306                 p_dev->resource[0]->start = base;
 307                 ret = pcmcia_request_io(p_dev);
 308                 if (!ret)
 309                         return 0;
 310         }
 311         return -ENODEV;
 312 }
 313
 314
 315 static void mio_cs_config(struct pcmcia_device *link)
 316 {
 317         int ret;
 318
 319         DPRINTK("mio_cs_config(link=%p)\n", link);
 320         link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
 321
 322         ret = pcmcia_loop_config(link, mio_pcmcia_config_loop, NULL);
 323         if (ret) {
 324                 dev_warn(&link->dev, "no configuration found\n");
 325                 return;
 326         }
 327
 328         if (!link->irq)
 329                 dev_info(&link->dev, "no IRQ available\n");
 330
 331         ret = pcmcia_enable_device(link);
 332 }
 333
 334 static int mio_cs_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 335 {
 336         struct pcmcia_device *link;
 337         unsigned int irq;
 338         int ret;
 339
 340         DPRINTK("mio_cs_attach(dev=%p,it=%p)\n", dev, it);
 341
 342         link = cur_dev;         /* XXX hack */
 343         if (!link)
 344                 return -EIO;
 345
 346         dev->driver = &driver_ni_mio_cs;
 347         dev->iobase = link->resource[0]->start;
 348
 349         irq = link->irq;
 350
 351         printk("comedi%d: %s: DAQCard: io 0x%04lx, irq %u, ",
 352                dev->minor, dev->driver->driver_name, dev->iobase, irq);
 353
 354 #if 0
 355         {
 356                 int i;
 357
 358                 printk(" board fingerprint:");
 359                 for (i = 0; i < 32; i += 2) {
 360                         printk(" %04x %02x", inw(dev->iobase + i),
 361                                inb(dev->iobase + i + 1));
 362                 }
 363                 printk("\n");
 364                 printk(" board fingerprint (windowed):");
 365                 for (i = 0; i < 10; i++)
 366                         printk(" 0x%04x", win_in(i));
 367                 printk("\n");
 368         }
 369 #endif
 370
 371         dev->board_ptr = ni_boards + ni_getboardtype(dev, link);
 372
 373         printk(" %s", boardtype.name);
 374         dev->board_name = boardtype.name;
 375
 376         ret = request_irq(irq, ni_E_interrupt, NI_E_IRQ_FLAGS,
 377                           "ni_mio_cs", dev);
 378         if (ret < 0) {
 379                 printk(" irq not available\n");
 380                 return -EINVAL;
 381         }
 382         dev->irq = irq;
 383
 384         /* allocate private area */
 385         ret = ni_alloc_private(dev);
 386         if (ret < 0)
 387                 return ret;
 388
 389         devpriv->stc_writew = &mio_cs_win_out;
 390         devpriv->stc_readw = &mio_cs_win_in;
 391         devpriv->stc_writel = &win_out2;
 392         devpriv->stc_readl = &win_in2;
 393
 394         ret = ni_E_init(dev, it);
 395
 396         if (ret < 0)
 397                 return ret;
 398
 399         return 0;
 400 }
 401
 402 static int ni_getboardtype(struct comedi_device *dev,
 403                            struct pcmcia_device *link)
 404 {
 405         int i;
 406
 407         for (i = 0; i < n_ni_boards; i++) {
 408                 if (ni_boards[i].device_id == link->card_id)
 409                         return i;
 410         }
 411
 412         printk("unknown board 0x%04x -- pretend it is a ", link->card_id);
 413
 414         return 0;
 415 }
 416
 417 #ifdef MODULE
 418
 419 static struct pcmcia_device_id ni_mio_cs_ids[] = {
 420         PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010d),        /* DAQCard-ai-16xe-50 */
 421         PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010c),        /* DAQCard-ai-16e-4 */
 422         PCMCIA_DEVICE_MANF_CARD(0x010b, 0x02c4),        /* DAQCard-6062E */
 423         PCMCIA_DEVICE_MANF_CARD(0x010b, 0x075e),        /* DAQCard-6024E */
 424         PCMCIA_DEVICE_MANF_CARD(0x010b, 0x0245),        /* DAQCard-6036E */
 425         PCMCIA_DEVICE_NULL
 426 };
 427
 428 MODULE_DEVICE_TABLE(pcmcia, ni_mio_cs_ids);
 429 MODULE_AUTHOR("David A. Schleef <ds@schleef.org>");
 430 MODULE_DESCRIPTION("Comedi driver for National Instruments DAQCard E series");
 431 MODULE_LICENSE("GPL");
 432
 433 struct pcmcia_driver ni_mio_cs_driver = {
 434         .probe = &cs_attach,
 435         .remove = &cs_detach,
 436         .suspend = &mio_cs_suspend,
 437         .resume = &mio_cs_resume,
 438         .id_table = ni_mio_cs_ids,
 439         .owner = THIS_MODULE,
 440         .drv = {
 441                 .name = "ni_mio_cs",
 442                 },
 443 };
 444
 445 int init_module(void)
 446 {
 447         pcmcia_register_driver(&ni_mio_cs_driver);
 448         comedi_driver_register(&driver_ni_mio_cs);
 449         return 0;
 450 }
 451
 452 void cleanup_module(void)
 453 {
 454         pcmcia_unregister_driver(&ni_mio_cs_driver);
 455 #if 0
 456         while (cur_dev != NULL)
 457                 cs_detach(cur_dev->handle);
 458 #endif
 459         comedi_driver_unregister(&driver_ni_mio_cs);
 460 }
 461 #endif