release/src-rt-6.x.4708/linux/linux-2.6.36/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         /* N.B. Update ni_mio_cs_ids[] when entries added above. */
 156 };
 157
 158 #define interrupt_pin(a)        0
 159
 160 #define IRQ_POLARITY 1
 161
 162 #define NI_E_IRQ_FLAGS          IRQF_SHARED
 163
 164 struct ni_private {
 165
 166         struct pcmcia_device *link;
 167
 168  NI_PRIVATE_COMMON};
 169
 170 #define devpriv ((struct ni_private *)dev->private)
 171
 172 /* How we access registers */
 173
 174 #define ni_writel(a, b)         (outl((a), (b)+dev->iobase))
 175 #define ni_readl(a)             (inl((a)+dev->iobase))
 176 #define ni_writew(a, b)         (outw((a), (b)+dev->iobase))
 177 #define ni_readw(a)             (inw((a)+dev->iobase))
 178 #define ni_writeb(a, b)         (outb((a), (b)+dev->iobase))
 179 #define ni_readb(a)             (inb((a)+dev->iobase))
 180
 181 /* How we access windowed registers */
 182
 183 /* We automatically take advantage of STC registers that can be
 184  * read/written directly in the I/O space of the board.  The
 185  * DAQCard devices map the low 8 STC registers to iobase+addr*2. */
 186
 187 static void mio_cs_win_out(struct comedi_device *dev, uint16_t data, int addr)
 188 {
 189         unsigned long flags;
 190
 191         spin_lock_irqsave(&devpriv->window_lock, flags);
 192         if (addr < 8) {
 193                 ni_writew(data, addr * 2);
 194         } else {
 195                 ni_writew(addr, Window_Address);
 196                 ni_writew(data, Window_Data);
 197         }
 198         spin_unlock_irqrestore(&devpriv->window_lock, flags);
 199 }
 200
 201 static uint16_t mio_cs_win_in(struct comedi_device *dev, int addr)
 202 {
 203         unsigned long flags;
 204         uint16_t ret;
 205
 206         spin_lock_irqsave(&devpriv->window_lock, flags);
 207         if (addr < 8) {
 208                 ret = ni_readw(addr * 2);
 209         } else {
 210                 ni_writew(addr, Window_Address);
 211                 ret = ni_readw(Window_Data);
 212         }
 213         spin_unlock_irqrestore(&devpriv->window_lock, flags);
 214
 215         return ret;
 216 }
 217
 218 static int mio_cs_attach(struct comedi_device *dev,
 219                          struct comedi_devconfig *it);
 220 static int mio_cs_detach(struct comedi_device *dev);
 221 static struct comedi_driver driver_ni_mio_cs = {
 222         .driver_name = "ni_mio_cs",
 223         .module = THIS_MODULE,
 224         .attach = mio_cs_attach,
 225         .detach = mio_cs_detach,
 226 };
 227
 228 #include "ni_mio_common.c"
 229
 230 static int ni_getboardtype(struct comedi_device *dev,
 231                            struct pcmcia_device *link);
 232
 233 /* clean up allocated resources */
 234 /* called when driver is removed */
 235 static int mio_cs_detach(struct comedi_device *dev)
 236 {
 237         mio_common_detach(dev);
 238
 239         /* PCMCIA layer frees the IO region */
 240
 241         if (dev->irq)
 242                 free_irq(dev->irq, dev);
 243
 244         return 0;
 245 }
 246
 247 static void mio_cs_config(struct pcmcia_device *link);
 248 static void cs_release(struct pcmcia_device *link);
 249 static void cs_detach(struct pcmcia_device *);
 250
 251 static struct pcmcia_device *cur_dev = NULL;
 252
 253 static int cs_attach(struct pcmcia_device *link)
 254 {
 255         link->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
 256         link->resource[0]->end = 16;
 257         link->conf.Attributes = CONF_ENABLE_IRQ;
 258         link->conf.IntType = INT_MEMORY_AND_IO;
 259
 260         cur_dev = link;
 261
 262         mio_cs_config(link);
 263
 264         return 0;
 265 }
 266
 267 static void cs_release(struct pcmcia_device *link)
 268 {
 269         pcmcia_disable_device(link);
 270 }
 271
 272 static void cs_detach(struct pcmcia_device *link)
 273 {
 274         DPRINTK("cs_detach(link=%p)\n", link);
 275
 276         cs_release(link);
 277 }
 278
 279 static int mio_cs_suspend(struct pcmcia_device *link)
 280 {
 281         DPRINTK("pm suspend\n");
 282
 283         return 0;
 284 }
 285
 286 static int mio_cs_resume(struct pcmcia_device *link)
 287 {
 288         DPRINTK("pm resume\n");
 289         return 0;
 290 }
 291
 292
 293 static int mio_pcmcia_config_loop(struct pcmcia_device *p_dev,
 294                                 cistpl_cftable_entry_t *cfg,
 295                                 cistpl_cftable_entry_t *dflt,
 296                                 unsigned int vcc,
 297                                 void *priv_data)
 298 {
 299         int base, ret;
 300
 301         p_dev->resource[0]->end = cfg->io.win[0].len;
 302         p_dev->io_lines = cfg->io.flags & CISTPL_IO_LINES_MASK;
 303
 304         for (base = 0x000; base < 0x400; base += 0x20) {
 305                 p_dev->resource[0]->start = base;
 306                 ret = pcmcia_request_io(p_dev);
 307                 if (!ret)
 308                         return 0;
 309         }
 310         return -ENODEV;
 311 }
 312
 313
 314 static void mio_cs_config(struct pcmcia_device *link)
 315 {
 316         int ret;
 317
 318         DPRINTK("mio_cs_config(link=%p)\n", link);
 319
 320         ret = pcmcia_loop_config(link, mio_pcmcia_config_loop, NULL);
 321         if (ret) {
 322                 dev_warn(&link->dev, "no configuration found\n");
 323                 return;
 324         }
 325
 326         if (!link->irq)
 327                 dev_info(&link->dev, "no IRQ available\n");
 328
 329         ret = pcmcia_request_configuration(link, &link->conf);
 330 }
 331
 332 static int mio_cs_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 333 {
 334         struct pcmcia_device *link;
 335         unsigned int irq;
 336         int ret;
 337
 338         DPRINTK("mio_cs_attach(dev=%p,it=%p)\n", dev, it);
 339
 340         link = cur_dev;
 341         if (!link)
 342                 return -EIO;
 343
 344         dev->driver = &driver_ni_mio_cs;
 345         dev->iobase = link->resource[0]->start;
 346
 347         irq = link->irq;
 348
 349         printk("comedi%d: %s: DAQCard: io 0x%04lx, irq %u, ",
 350                dev->minor, dev->driver->driver_name, dev->iobase, irq);
 351
 352
 353         dev->board_ptr = ni_boards + ni_getboardtype(dev, link);
 354
 355         printk(" %s", boardtype.name);
 356         dev->board_name = boardtype.name;
 357
 358         ret = request_irq(irq, ni_E_interrupt, NI_E_IRQ_FLAGS,
 359                           "ni_mio_cs", dev);
 360         if (ret < 0) {
 361                 printk(" irq not available\n");
 362                 return -EINVAL;
 363         }
 364         dev->irq = irq;
 365
 366         /* allocate private area */
 367         ret = ni_alloc_private(dev);
 368         if (ret < 0)
 369                 return ret;
 370
 371         devpriv->stc_writew = &mio_cs_win_out;
 372         devpriv->stc_readw = &mio_cs_win_in;
 373         devpriv->stc_writel = &win_out2;
 374         devpriv->stc_readl = &win_in2;
 375
 376         ret = ni_E_init(dev, it);
 377
 378         if (ret < 0)
 379                 return ret;
 380
 381         return 0;
 382 }
 383
 384 static int ni_getboardtype(struct comedi_device *dev,
 385                            struct pcmcia_device *link)
 386 {
 387         int i;
 388
 389         for (i = 0; i < n_ni_boards; i++) {
 390                 if (ni_boards[i].device_id == link->card_id)
 391                         return i;
 392         }
 393
 394         printk("unknown board 0x%04x -- pretend it is a ", link->card_id);
 395
 396         return 0;
 397 }
 398
 399 #ifdef MODULE
 400
 401 static struct pcmcia_device_id ni_mio_cs_ids[] = {
 402         PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010d),        /* DAQCard-ai-16xe-50 */
 403         PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010c),        /* DAQCard-ai-16e-4 */
 404         PCMCIA_DEVICE_MANF_CARD(0x010b, 0x02c4),        /* DAQCard-6062E */
 405         PCMCIA_DEVICE_MANF_CARD(0x010b, 0x075e),        /* DAQCard-6024E */
 406         PCMCIA_DEVICE_MANF_CARD(0x010b, 0x0245),        /* DAQCard-6036E */
 407         PCMCIA_DEVICE_NULL
 408 };
 409
 410 MODULE_DEVICE_TABLE(pcmcia, ni_mio_cs_ids);
 411 MODULE_AUTHOR("David A. Schleef <ds@schleef.org>");
 412 MODULE_DESCRIPTION("Comedi driver for National Instruments DAQCard E series");
 413 MODULE_LICENSE("GPL");
 414
 415 struct pcmcia_driver ni_mio_cs_driver = {
 416         .probe = &cs_attach,
 417         .remove = &cs_detach,
 418         .suspend = &mio_cs_suspend,
 419         .resume = &mio_cs_resume,
 420         .id_table = ni_mio_cs_ids,
 421         .owner = THIS_MODULE,
 422         .drv = {
 423                 .name = "ni_mio_cs",
 424                 },
 425 };
 426
 427 int init_module(void)
 428 {
 429         pcmcia_register_driver(&ni_mio_cs_driver);
 430         comedi_driver_register(&driver_ni_mio_cs);
 431         return 0;
 432 }
 433
 434 void cleanup_module(void)
 435 {
 436         pcmcia_unregister_driver(&ni_mio_cs_driver);
 437         comedi_driver_unregister(&driver_ni_mio_cs);
 438 }
 439 #endif