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_types.h>
  52 #include <pcmcia/cs.h>
  53 #include <pcmcia/cistpl.h>
  54 #include <pcmcia/ds.h>
  55
  56 #undef DEBUG
  57
  58 #define ATMIO 1
  59 #undef PCIMIO
  60
  61 /*
  62  *  AT specific setup
  63  */
  64
  65 #define NI_SIZE 0x20
  66
  67 #define MAX_N_CALDACS 32
  68
  69 static const struct ni_board_struct ni_boards[] = {
  70         {.device_id = 0x010d,
  71          .name = "DAQCard-ai-16xe-50",
  72          .n_adchan = 16,
  73          .adbits = 16,
  74          .ai_fifo_depth = 1024,
  75          .alwaysdither = 0,
  76          .gainlkup = ai_gain_8,
  77          .ai_speed = 5000,
  78          .n_aochan = 0,
  79          .aobits = 0,
  80          .ao_fifo_depth = 0,
  81          .ao_unipolar = 0,
  82          .num_p0_dio_channels = 8,
  83          .has_8255 = 0,
  84          .caldac = {dac8800, dac8043},
  85          },
  86         {.device_id = 0x010c,
  87          .name = "DAQCard-ai-16e-4",
  88          .n_adchan = 16,
  89          .adbits = 12,
  90          .ai_fifo_depth = 1024,
  91          .alwaysdither = 0,
  92          .gainlkup = ai_gain_16,
  93          .ai_speed = 4000,
  94          .n_aochan = 0,
  95          .aobits = 0,
  96          .ao_fifo_depth = 0,
  97          .ao_unipolar = 0,
  98          .num_p0_dio_channels = 8,
  99          .has_8255 = 0,
 100          .caldac = {mb88341},   /* verified */
 101          },
 102         {.device_id = 0x02c4,
 103          .name = "DAQCard-6062E",
 104          .n_adchan = 16,
 105          .adbits = 12,
 106          .ai_fifo_depth = 8192,
 107          .alwaysdither = 0,
 108          .gainlkup = ai_gain_16,
 109          .ai_speed = 2000,
 110          .n_aochan = 2,
 111          .aobits = 12,
 112          .ao_fifo_depth = 2048,
 113          .ao_range_table = &range_bipolar10,
 114          .ao_unipolar = 0,
 115          .ao_speed = 1176,
 116          .num_p0_dio_channels = 8,
 117          .has_8255 = 0,
 118          .caldac = {ad8804_debug},      /* verified */
 119          },
 120         {.device_id = 0x075e,
 121          .name = "DAQCard-6024E",       /* specs incorrect! */
 122          .n_adchan = 16,
 123          .adbits = 12,
 124          .ai_fifo_depth = 1024,
 125          .alwaysdither = 0,
 126          .gainlkup = ai_gain_16,
 127          .ai_speed = 5000,
 128          .n_aochan = 2,
 129          .aobits = 12,
 130          .ao_fifo_depth = 0,
 131          .ao_range_table = &range_bipolar10,
 132          .ao_unipolar = 0,
 133          .ao_speed = 1000000,
 134          .num_p0_dio_channels = 8,
 135          .has_8255 = 0,
 136          .caldac = {ad8804_debug},
 137          },
 138         {.device_id = 0x0245,
 139          .name = "DAQCard-6036E",       /* specs incorrect! */
 140          .n_adchan = 16,
 141          .adbits = 16,
 142          .ai_fifo_depth = 1024,
 143          .alwaysdither = 1,
 144          .gainlkup = ai_gain_4,
 145          .ai_speed = 5000,
 146          .n_aochan = 2,
 147          .aobits = 16,
 148          .ao_fifo_depth = 0,
 149          .ao_range_table = &range_bipolar10,
 150          .ao_unipolar = 0,
 151          .ao_speed = 1000000,
 152          .num_p0_dio_channels = 8,
 153          .has_8255 = 0,
 154          .caldac = {ad8804_debug},
 155          },
 156 #if 0
 157         {.device_id = 0x0000,   /* unknown */
 158          .name = "DAQCard-6715",
 159          .n_adchan = 0,
 160          .n_aochan = 8,
 161          .aobits = 12,
 162          .ao_671x = 8192,
 163          .num_p0_dio_channels = 8,
 164          .caldac = {mb88341, mb88341},
 165          },
 166 #endif
 167         /* N.B. Update ni_mio_cs_ids[] when entries added above. */
 168 };
 169
 170 #define interrupt_pin(a)        0
 171
 172 #define IRQ_POLARITY 1
 173
 174 #define NI_E_IRQ_FLAGS          IRQF_SHARED
 175
 176 struct ni_private {
 177
 178         struct pcmcia_device *link;
 179
 180  NI_PRIVATE_COMMON};
 181
 182 #define devpriv ((struct ni_private *)dev->private)
 183
 184 /* How we access registers */
 185
 186 #define ni_writel(a, b)         (outl((a), (b)+dev->iobase))
 187 #define ni_readl(a)             (inl((a)+dev->iobase))
 188 #define ni_writew(a, b)         (outw((a), (b)+dev->iobase))
 189 #define ni_readw(a)             (inw((a)+dev->iobase))
 190 #define ni_writeb(a, b)         (outb((a), (b)+dev->iobase))
 191 #define ni_readb(a)             (inb((a)+dev->iobase))
 192
 193 /* How we access windowed registers */
 194
 195 /* We automatically take advantage of STC registers that can be
 196  * read/written directly in the I/O space of the board.  The
 197  * DAQCard devices map the low 8 STC registers to iobase+addr*2. */
 198
 199 static void mio_cs_win_out(struct comedi_device *dev, uint16_t data, int addr)
 200 {
 201         unsigned long flags;
 202
 203         spin_lock_irqsave(&devpriv->window_lock, flags);
 204         if (addr < 8) {
 205                 ni_writew(data, addr * 2);
 206         } else {
 207                 ni_writew(addr, Window_Address);
 208                 ni_writew(data, Window_Data);
 209         }
 210         spin_unlock_irqrestore(&devpriv->window_lock, flags);
 211 }
 212
 213 static uint16_t mio_cs_win_in(struct comedi_device *dev, int addr)
 214 {
 215         unsigned long flags;
 216         uint16_t ret;
 217
 218         spin_lock_irqsave(&devpriv->window_lock, flags);
 219         if (addr < 8) {
 220                 ret = ni_readw(addr * 2);
 221         } else {
 222                 ni_writew(addr, Window_Address);
 223                 ret = ni_readw(Window_Data);
 224         }
 225         spin_unlock_irqrestore(&devpriv->window_lock, flags);
 226
 227         return ret;
 228 }
 229
 230 static int mio_cs_attach(struct comedi_device *dev,
 231                          struct comedi_devconfig *it);
 232 static int mio_cs_detach(struct comedi_device *dev);
 233 static struct comedi_driver driver_ni_mio_cs = {
 234         .driver_name = "ni_mio_cs",
 235         .module = THIS_MODULE,
 236         .attach = mio_cs_attach,
 237         .detach = mio_cs_detach,
 238 };
 239
 240 #include "ni_mio_common.c"
 241
 242 static int ni_getboardtype(struct comedi_device *dev,
 243                            struct pcmcia_device *link);
 244
 245 /* clean up allocated resources */
 246 /* called when driver is removed */
 247 static int mio_cs_detach(struct comedi_device *dev)
 248 {
 249         mio_common_detach(dev);
 250
 251         /* PCMCIA layer frees the IO region */
 252
 253         if (dev->irq)
 254                 free_irq(dev->irq, dev);
 255
 256         return 0;
 257 }
 258
 259 static void mio_cs_config(struct pcmcia_device *link);
 260 static void cs_release(struct pcmcia_device *link);
 261 static void cs_detach(struct pcmcia_device *);
 262
 263 static struct pcmcia_device *cur_dev = NULL;
 264 static const dev_info_t dev_info = "ni_mio_cs";
 265
 266 static int cs_attach(struct pcmcia_device *link)
 267 {
 268         link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
 269         link->io.NumPorts1 = 16;
 270         link->conf.Attributes = CONF_ENABLE_IRQ;
 271         link->conf.IntType = INT_MEMORY_AND_IO;
 272
 273         cur_dev = link;
 274
 275         mio_cs_config(link);
 276
 277         return 0;
 278 }
 279
 280 static void cs_release(struct pcmcia_device *link)
 281 {
 282         pcmcia_disable_device(link);
 283 }
 284
 285 static void cs_detach(struct pcmcia_device *link)
 286 {
 287         DPRINTK("cs_detach(link=%p)\n", link);
 288
 289         cs_release(link);
 290 }
 291
 292 static int mio_cs_suspend(struct pcmcia_device *link)
 293 {
 294         DPRINTK("pm suspend\n");
 295
 296         return 0;
 297 }
 298
 299 static int mio_cs_resume(struct pcmcia_device *link)
 300 {
 301         DPRINTK("pm resume\n");
 302         return 0;
 303 }
 304
 305
 306 static int mio_pcmcia_config_loop(struct pcmcia_device *p_dev,
 307                                 cistpl_cftable_entry_t *cfg,
 308                                 cistpl_cftable_entry_t *dflt,
 309                                 unsigned int vcc,
 310                                 void *priv_data)
 311 {
 312         int base, ret;
 313
 314         p_dev->io.NumPorts1 = cfg->io.win[0].len;
 315         p_dev->io.IOAddrLines = cfg->io.flags & CISTPL_IO_LINES_MASK;
 316         p_dev->io.NumPorts2 = 0;
 317
 318         for (base = 0x000; base < 0x400; base += 0x20) {
 319                 p_dev->io.BasePort1 = base;
 320                 ret = pcmcia_request_io(p_dev, &p_dev->io);
 321                 if (!ret)
 322                         return 0;
 323         }
 324         return -ENODEV;
 325 }
 326
 327
 328 static void mio_cs_config(struct pcmcia_device *link)
 329 {
 330         int ret;
 331
 332         DPRINTK("mio_cs_config(link=%p)\n", link);
 333
 334         ret = pcmcia_loop_config(link, mio_pcmcia_config_loop, NULL);
 335         if (ret) {
 336                 dev_warn(&link->dev, "no configuration found\n");
 337                 return;
 338         }
 339
 340         if (!link->irq)
 341                 dev_info(&link->dev, "no IRQ available\n");
 342
 343         ret = pcmcia_request_configuration(link, &link->conf);
 344 }
 345
 346 static int mio_cs_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 347 {
 348         struct pcmcia_device *link;
 349         unsigned int irq;
 350         int ret;
 351
 352         DPRINTK("mio_cs_attach(dev=%p,it=%p)\n", dev, it);
 353
 354         link = cur_dev;         /* XXX hack */
 355         if (!link)
 356                 return -EIO;
 357
 358         dev->driver = &driver_ni_mio_cs;
 359         dev->iobase = link->io.BasePort1;
 360
 361         irq = link->irq;
 362
 363         printk("comedi%d: %s: DAQCard: io 0x%04lx, irq %u, ",
 364                dev->minor, dev->driver->driver_name, dev->iobase, irq);
 365
 366 #if 0
 367         {
 368                 int i;
 369
 370                 printk(" board fingerprint:");
 371                 for (i = 0; i < 32; i += 2) {
 372                         printk(" %04x %02x", inw(dev->iobase + i),
 373                                inb(dev->iobase + i + 1));
 374                 }
 375                 printk("\n");
 376                 printk(" board fingerprint (windowed):");
 377                 for (i = 0; i < 10; i++)
 378                         printk(" 0x%04x", win_in(i));
 379                 printk("\n");
 380         }
 381 #endif
 382
 383         dev->board_ptr = ni_boards + ni_getboardtype(dev, link);
 384
 385         printk(" %s", boardtype.name);
 386         dev->board_name = boardtype.name;
 387
 388         ret = request_irq(irq, ni_E_interrupt, NI_E_IRQ_FLAGS,
 389                           "ni_mio_cs", dev);
 390         if (ret < 0) {
 391                 printk(" irq not available\n");
 392                 return -EINVAL;
 393         }
 394         dev->irq = irq;
 395
 396         /* allocate private area */
 397         ret = ni_alloc_private(dev);
 398         if (ret < 0)
 399                 return ret;
 400
 401         devpriv->stc_writew = &mio_cs_win_out;
 402         devpriv->stc_readw = &mio_cs_win_in;
 403         devpriv->stc_writel = &win_out2;
 404         devpriv->stc_readl = &win_in2;
 405
 406         ret = ni_E_init(dev, it);
 407
 408         if (ret < 0)
 409                 return ret;
 410
 411         return 0;
 412 }
 413
 414 static int ni_getboardtype(struct comedi_device *dev,
 415                            struct pcmcia_device *link)
 416 {
 417         int i;
 418
 419         for (i = 0; i < n_ni_boards; i++) {
 420                 if (ni_boards[i].device_id == link->card_id)
 421                         return i;
 422         }
 423
 424         printk("unknown board 0x%04x -- pretend it is a ", link->card_id);
 425
 426         return 0;
 427 }
 428
 429 #ifdef MODULE
 430
 431 static struct pcmcia_device_id ni_mio_cs_ids[] = {
 432         PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010d),        /* DAQCard-ai-16xe-50 */
 433         PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010c),        /* DAQCard-ai-16e-4 */
 434         PCMCIA_DEVICE_MANF_CARD(0x010b, 0x02c4),        /* DAQCard-6062E */
 435         PCMCIA_DEVICE_MANF_CARD(0x010b, 0x075e),        /* DAQCard-6024E */
 436         PCMCIA_DEVICE_MANF_CARD(0x010b, 0x0245),        /* DAQCard-6036E */
 437         PCMCIA_DEVICE_NULL
 438 };
 439
 440 MODULE_DEVICE_TABLE(pcmcia, ni_mio_cs_ids);
 441 MODULE_AUTHOR("David A. Schleef <ds@schleef.org>");
 442 MODULE_DESCRIPTION("Comedi driver for National Instruments DAQCard E series");
 443 MODULE_LICENSE("GPL");
 444
 445 struct pcmcia_driver ni_mio_cs_driver = {
 446         .probe = &cs_attach,
 447         .remove = &cs_detach,
 448         .suspend = &mio_cs_suspend,
 449         .resume = &mio_cs_resume,
 450         .id_table = ni_mio_cs_ids,
 451         .owner = THIS_MODULE,
 452         .drv = {
 453                 .name = dev_info,
 454                 },
 455 };
 456
 457 int init_module(void)
 458 {
 459         pcmcia_register_driver(&ni_mio_cs_driver);
 460         comedi_driver_register(&driver_ni_mio_cs);
 461         return 0;
 462 }
 463
 464 void cleanup_module(void)
 465 {
 466         pcmcia_unregister_driver(&ni_mio_cs_driver);
 467 #if 0
 468         while (cur_dev != NULL)
 469                 cs_detach(cur_dev->handle);
 470 #endif
 471         comedi_driver_unregister(&driver_ni_mio_cs);
 472 }
 473 #endif