drivers/char/sonypi.c

   1 /*
   2  * Sony Programmable I/O Control Device driver for VAIO
   3  *
   4  * Copyright (C) 2001-2003 Stelian Pop <stelian@popies.net>
   5  *
   6  * Copyright (C) 2001-2002 Alcôve <www.alcove.com>
   7  *
   8  * Copyright (C) 2001 Michael Ashley <m.ashley@unsw.edu.au>
   9  *
  10  * Copyright (C) 2001 Junichi Morita <jun1m@mars.dti.ne.jp>
  11  *
  12  * Copyright (C) 2000 Takaya Kinjo <t-kinjo@tc4.so-net.ne.jp>
  13  *
  14  * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
  15  *
  16  * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
  17  *
  18  * This program is free software; you can redistribute it and/or modify
  19  * it under the terms of the GNU General Public License as published by
  20  * the Free Software Foundation; either version 2 of the License, or
  21  * (at your option) any later version.
  22  *
  23  * This program is distributed in the hope that it will be useful,
  24  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  25  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  26  * GNU General Public License for more details.
  27  *
  28  * You should have received a copy of the GNU General Public License
  29  * along with this program; if not, write to the Free Software
  30  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  31  *
  32  */
  33
  34 #include <linux/config.h>
  35 #include <linux/module.h>
  36 #include <linux/input.h>
  37 #include <linux/pci.h>
  38 #include <linux/sched.h>
  39 #include <linux/init.h>
  40 #include <linux/interrupt.h>
  41 #include <linux/miscdevice.h>
  42 #include <linux/poll.h>
  43 #include <linux/delay.h>
  44 #include <linux/wait.h>
  45 #include <linux/acpi.h>
  46 #include <linux/dmi.h>
  47 #include <linux/sysdev.h>
  48
  49 #include <asm/uaccess.h>
  50 #include <asm/io.h>
  51 #include <asm/system.h>
  52
  53 static int verbose; /* = 0 */
  54
  55 #include "sonypi.h"
  56 #include <linux/sonypi.h>
  57
  58 static struct sonypi_device sonypi_device;
  59 static int minor = -1;
  60 static int fnkeyinit; /* = 0 */
  61 static int camera; /* = 0 */
  62 static int compat; /* = 0 */
  63 static int useinput = 1;
  64 static unsigned long mask = 0xffffffff;
  65
  66 /* Inits the queue */
  67 static inline void sonypi_initq(void) {
  68         sonypi_device.queue.head = sonypi_device.queue.tail = 0;
  69         sonypi_device.queue.len = 0;
  70         sonypi_device.queue.s_lock = SPIN_LOCK_UNLOCKED;
  71         init_waitqueue_head(&sonypi_device.queue.proc_list);
  72 }
  73
  74 /* Pulls an event from the queue */
  75 static inline unsigned char sonypi_pullq(void) {
  76         unsigned char result;
  77         unsigned long flags;
  78
  79         spin_lock_irqsave(&sonypi_device.queue.s_lock, flags);
  80         if (!sonypi_device.queue.len) {
  81                 spin_unlock_irqrestore(&sonypi_device.queue.s_lock, flags);
  82                 return 0;
  83         }
  84         result = sonypi_device.queue.buf[sonypi_device.queue.head];
  85         sonypi_device.queue.head++;
  86         sonypi_device.queue.head &= (SONYPI_BUF_SIZE - 1);
  87         sonypi_device.queue.len--;
  88         spin_unlock_irqrestore(&sonypi_device.queue.s_lock, flags);
  89         return result;
  90 }
  91
  92 /* Pushes an event into the queue */
  93 static inline void sonypi_pushq(unsigned char event) {
  94         unsigned long flags;
  95
  96         spin_lock_irqsave(&sonypi_device.queue.s_lock, flags);
  97         if (sonypi_device.queue.len == SONYPI_BUF_SIZE) {
  98                 /* remove the first element */
  99                 sonypi_device.queue.head++;
 100                 sonypi_device.queue.head &= (SONYPI_BUF_SIZE - 1);
 101                 sonypi_device.queue.len--;
 102         }
 103         sonypi_device.queue.buf[sonypi_device.queue.tail] = event;
 104         sonypi_device.queue.tail++;
 105         sonypi_device.queue.tail &= (SONYPI_BUF_SIZE - 1);
 106         sonypi_device.queue.len++;
 107
 108         kill_fasync(&sonypi_device.queue.fasync, SIGIO, POLL_IN);
 109         wake_up_interruptible(&sonypi_device.queue.proc_list);
 110         spin_unlock_irqrestore(&sonypi_device.queue.s_lock, flags);
 111 }
 112
 113 /* Tests if the queue is empty */
 114 static inline int sonypi_emptyq(void) {
 115         int result;
 116         unsigned long flags;
 117
 118         spin_lock_irqsave(&sonypi_device.queue.s_lock, flags);
 119         result = (sonypi_device.queue.len == 0);
 120         spin_unlock_irqrestore(&sonypi_device.queue.s_lock, flags);
 121         return result;
 122 }
 123
 124 static int ec_read16(u8 addr, u16 *value) {
 125         u8 val_lb, val_hb;
 126         if (sonypi_ec_read(addr, &val_lb))
 127                 return -1;
 128         if (sonypi_ec_read(addr + 1, &val_hb))
 129                 return -1;
 130         *value = val_lb | (val_hb << 8);
 131         return 0;
 132 }
 133
 134 /* Initializes the device - this comes from the AML code in the ACPI bios */
 135 static void sonypi_type1_srs(void) {
 136         u32 v;
 137
 138         pci_read_config_dword(sonypi_device.dev, SONYPI_G10A, &v);
 139         v = (v & 0xFFFF0000) | ((u32)sonypi_device.ioport1);
 140         pci_write_config_dword(sonypi_device.dev, SONYPI_G10A, v);
 141
 142         pci_read_config_dword(sonypi_device.dev, SONYPI_G10A, &v);
 143         v = (v & 0xFFF0FFFF) |
 144             (((u32)sonypi_device.ioport1 ^ sonypi_device.ioport2) << 16);
 145         pci_write_config_dword(sonypi_device.dev, SONYPI_G10A, v);
 146
 147         v = inl(SONYPI_IRQ_PORT);
 148         v &= ~(((u32)0x3) << SONYPI_IRQ_SHIFT);
 149         v |= (((u32)sonypi_device.bits) << SONYPI_IRQ_SHIFT);
 150         outl(v, SONYPI_IRQ_PORT);
 151
 152         pci_read_config_dword(sonypi_device.dev, SONYPI_G10A, &v);
 153         v = (v & 0xFF1FFFFF) | 0x00C00000;
 154         pci_write_config_dword(sonypi_device.dev, SONYPI_G10A, v);
 155 }
 156
 157 static void sonypi_type2_srs(void) {
 158         if (sonypi_ec_write(SONYPI_SHIB, (sonypi_device.ioport1 & 0xFF00) >> 8))
 159                 printk(KERN_WARNING "ec_write failed\n");
 160         if (sonypi_ec_write(SONYPI_SLOB,  sonypi_device.ioport1 & 0x00FF))
 161                 printk(KERN_WARNING "ec_write failed\n");
 162         if (sonypi_ec_write(SONYPI_SIRQ,  sonypi_device.bits))
 163                 printk(KERN_WARNING "ec_write failed\n");
 164         udelay(10);
 165 }
 166
 167 /* Disables the device - this comes from the AML code in the ACPI bios */
 168 static void sonypi_type1_dis(void) {
 169         u32 v;
 170
 171         pci_read_config_dword(sonypi_device.dev, SONYPI_G10A, &v);
 172         v = v & 0xFF3FFFFF;
 173         pci_write_config_dword(sonypi_device.dev, SONYPI_G10A, v);
 174
 175         v = inl(SONYPI_IRQ_PORT);
 176         v |= (0x3 << SONYPI_IRQ_SHIFT);
 177         outl(v, SONYPI_IRQ_PORT);
 178 }
 179
 180 static void sonypi_type2_dis(void) {
 181         if (sonypi_ec_write(SONYPI_SHIB, 0))
 182                 printk(KERN_WARNING "ec_write failed\n");
 183         if (sonypi_ec_write(SONYPI_SLOB, 0))
 184                 printk(KERN_WARNING "ec_write failed\n");
 185         if (sonypi_ec_write(SONYPI_SIRQ, 0))
 186                 printk(KERN_WARNING "ec_write failed\n");
 187 }
 188
 189 static u8 sonypi_call1(u8 dev) {
 190         u8 v1, v2;
 191
 192         wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG);
 193         outb(dev, sonypi_device.ioport2);
 194         v1 = inb_p(sonypi_device.ioport2);
 195         v2 = inb_p(sonypi_device.ioport1);
 196         return v2;
 197 }
 198
 199 static u8 sonypi_call2(u8 dev, u8 fn) {
 200         u8 v1;
 201
 202         wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG);
 203         outb(dev, sonypi_device.ioport2);
 204         wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG);
 205         outb(fn, sonypi_device.ioport1);
 206         v1 = inb_p(sonypi_device.ioport1);
 207         return v1;
 208 }
 209
 210 static u8 sonypi_call3(u8 dev, u8 fn, u8 v) {
 211         u8 v1;
 212
 213         wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG);
 214         outb(dev, sonypi_device.ioport2);
 215         wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG);
 216         outb(fn, sonypi_device.ioport1);
 217         wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG);
 218         outb(v, sonypi_device.ioport1);
 219         v1 = inb_p(sonypi_device.ioport1);
 220         return v1;
 221 }
 222
 223 static u8 sonypi_read(u8 fn) {
 224         u8 v1, v2;
 225         int n = 100;
 226
 227         while (n--) {
 228                 v1 = sonypi_call2(0x8f, fn);
 229                 v2 = sonypi_call2(0x8f, fn);
 230                 if (v1 == v2 && v1 != 0xff)
 231                         return v1;
 232         }
 233         return 0xff;
 234 }
 235
 236 /* Set brightness, hue etc */
 237 static void sonypi_set(u8 fn, u8 v) {
 238
 239         wait_on_command(0, sonypi_call3(0x90, fn, v), ITERATIONS_SHORT);
 240 }
 241
 242 /* Tests if the camera is ready */
 243 static int sonypi_camera_ready(void) {
 244         u8 v;
 245
 246         v = sonypi_call2(0x8f, SONYPI_CAMERA_STATUS);
 247         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
 248 }
 249
 250 /* Turns the camera off */
 251 static void sonypi_camera_off(void) {
 252
 253         sonypi_set(SONYPI_CAMERA_PICTURE, SONYPI_CAMERA_MUTE_MASK);
 254
 255         if (!sonypi_device.camera_power)
 256                 return;
 257
 258         sonypi_call2(0x91, 0);
 259         sonypi_device.camera_power = 0;
 260 }
 261
 262 /* Turns the camera on */
 263 static void sonypi_camera_on(void) {
 264         int i, j;
 265
 266         if (sonypi_device.camera_power)
 267                 return;
 268
 269         for (j = 5; j > 0; j--) {
 270
 271                 while (sonypi_call2(0x91, 0x1)) {
 272                         set_current_state(TASK_UNINTERRUPTIBLE);
 273                         schedule_timeout(1);
 274                 }
 275                 sonypi_call1(0x93);
 276
 277                 for (i = 400; i > 0; i--) {
 278                         if (sonypi_camera_ready())
 279                                 break;
 280                         set_current_state(TASK_UNINTERRUPTIBLE);
 281                         schedule_timeout(1);
 282                 }
 283                 if (i)
 284                         break;
 285         }
 286
 287         if (j == 0) {
 288                 printk(KERN_WARNING "sonypi: failed to power on camera\n");
 289                 return;
 290         }
 291
 292         sonypi_set(0x10, 0x5a);
 293         sonypi_device.camera_power = 1;
 294 }
 295
 296 /* sets the bluetooth subsystem power state */
 297 static void sonypi_setbluetoothpower(u8 state) {
 298
 299         state = !!state;
 300         if (sonypi_device.bluetooth_power == state)
 301                 return;
 302
 303         sonypi_call2(0x96, state);
 304         sonypi_call1(0x82);
 305         sonypi_device.bluetooth_power = state;
 306 }
 307
 308 /* Interrupt handler: some event is available */
 309 static irqreturn_t sonypi_irq(int irq, void *dev_id, struct pt_regs *regs) {
 310         u8 v1, v2, event = 0;
 311         int i, j;
 312
 313         v1 = inb_p(sonypi_device.ioport1);
 314         v2 = inb_p(sonypi_device.ioport1 + sonypi_device.evtype_offset);
 315
 316         for (i = 0; sonypi_eventtypes[i].model; i++) {
 317                 if (sonypi_device.model != sonypi_eventtypes[i].model)
 318                         continue;
 319                 if ((v2 & sonypi_eventtypes[i].data) != sonypi_eventtypes[i].data)
 320                         continue;
 321                 if (! (mask & sonypi_eventtypes[i].mask))
 322                         continue;
 323                 for (j = 0; sonypi_eventtypes[i].events[j].event; j++) {
 324                         if (v1 == sonypi_eventtypes[i].events[j].data) {
 325                                 event = sonypi_eventtypes[i].events[j].event;
 326                                 goto found;
 327                         }
 328                 }
 329         }
 330
 331         if (verbose)
 332                 printk(KERN_WARNING
 333                        "sonypi: unknown event port1=0x%02x,port2=0x%02x\n",v1,v2);
 334         /* We need to return IRQ_HANDLED here because there *are*
 335          * events belonging to the sonypi device we don't know about,
 336          * but we still don't want those to pollute the logs... */
 337         return IRQ_HANDLED;
 338
 339 found:
 340         if (verbose > 1)
 341                 printk(KERN_INFO
 342                        "sonypi: event port1=0x%02x,port2=0x%02x\n", v1, v2);
 343
 344 #ifdef SONYPI_USE_INPUT
 345         if (useinput) {
 346                 struct input_dev *jog_dev = &sonypi_device.jog_dev;
 347                 if (event == SONYPI_EVENT_JOGDIAL_PRESSED)
 348                         input_report_key(jog_dev, BTN_MIDDLE, 1);
 349                 else if (event == SONYPI_EVENT_ANYBUTTON_RELEASED)
 350                         input_report_key(jog_dev, BTN_MIDDLE, 0);
 351                 else if ((event == SONYPI_EVENT_JOGDIAL_UP) ||
 352                          (event == SONYPI_EVENT_JOGDIAL_UP_PRESSED))
 353                         input_report_rel(jog_dev, REL_WHEEL, 1);
 354                 else if ((event == SONYPI_EVENT_JOGDIAL_DOWN) ||
 355                          (event == SONYPI_EVENT_JOGDIAL_DOWN_PRESSED))
 356                         input_report_rel(jog_dev, REL_WHEEL, -1);
 357                 input_sync(jog_dev);
 358         }
 359 #endif /* SONYPI_USE_INPUT */
 360         sonypi_pushq(event);
 361         return IRQ_HANDLED;
 362 }
 363
 364 /* External camera command (exported to the motion eye v4l driver) */
 365 u8 sonypi_camera_command(int command, u8 value) {
 366         u8 ret = 0;
 367
 368         if (!camera)
 369                 return 0;
 370
 371         down(&sonypi_device.lock);
 372
 373         switch(command) {
 374                 case SONYPI_COMMAND_GETCAMERA:
 375                         ret = sonypi_camera_ready();
 376                         break;
 377                 case SONYPI_COMMAND_SETCAMERA:
 378                         if (value)
 379                                 sonypi_camera_on();
 380                         else
 381                                 sonypi_camera_off();
 382                         break;
 383                 case SONYPI_COMMAND_GETCAMERABRIGHTNESS:
 384                         ret = sonypi_read(SONYPI_CAMERA_BRIGHTNESS);
 385                         break;
 386                 case SONYPI_COMMAND_SETCAMERABRIGHTNESS:
 387                         sonypi_set(SONYPI_CAMERA_BRIGHTNESS, value);
 388                         break;
 389                 case SONYPI_COMMAND_GETCAMERACONTRAST:
 390                         ret = sonypi_read(SONYPI_CAMERA_CONTRAST);
 391                         break;
 392                 case SONYPI_COMMAND_SETCAMERACONTRAST:
 393                         sonypi_set(SONYPI_CAMERA_CONTRAST, value);
 394                         break;
 395                 case SONYPI_COMMAND_GETCAMERAHUE:
 396                         ret = sonypi_read(SONYPI_CAMERA_HUE);
 397                         break;
 398                 case SONYPI_COMMAND_SETCAMERAHUE:
 399                         sonypi_set(SONYPI_CAMERA_HUE, value);
 400                         break;
 401                 case SONYPI_COMMAND_GETCAMERACOLOR:
 402                         ret = sonypi_read(SONYPI_CAMERA_COLOR);
 403                         break;
 404                 case SONYPI_COMMAND_SETCAMERACOLOR:
 405                         sonypi_set(SONYPI_CAMERA_COLOR, value);
 406                         break;
 407                 case SONYPI_COMMAND_GETCAMERASHARPNESS:
 408                         ret = sonypi_read(SONYPI_CAMERA_SHARPNESS);
 409                         break;
 410                 case SONYPI_COMMAND_SETCAMERASHARPNESS:
 411                         sonypi_set(SONYPI_CAMERA_SHARPNESS, value);
 412                         break;
 413                 case SONYPI_COMMAND_GETCAMERAPICTURE:
 414                         ret = sonypi_read(SONYPI_CAMERA_PICTURE);
 415                         break;
 416                 case SONYPI_COMMAND_SETCAMERAPICTURE:
 417                         sonypi_set(SONYPI_CAMERA_PICTURE, value);
 418                         break;
 419                 case SONYPI_COMMAND_GETCAMERAAGC:
 420                         ret = sonypi_read(SONYPI_CAMERA_AGC);
 421                         break;
 422                 case SONYPI_COMMAND_SETCAMERAAGC:
 423                         sonypi_set(SONYPI_CAMERA_AGC, value);
 424                         break;
 425                 case SONYPI_COMMAND_GETCAMERADIRECTION:
 426                         ret = sonypi_read(SONYPI_CAMERA_STATUS);
 427                         ret &= SONYPI_DIRECTION_BACKWARDS;
 428                         break;
 429                 case SONYPI_COMMAND_GETCAMERAROMVERSION:
 430                         ret = sonypi_read(SONYPI_CAMERA_ROMVERSION);
 431                         break;
 432                 case SONYPI_COMMAND_GETCAMERAREVISION:
 433                         ret = sonypi_read(SONYPI_CAMERA_REVISION);
 434                         break;
 435         }
 436         up(&sonypi_device.lock);
 437         return ret;
 438 }
 439
 440 static int sonypi_misc_fasync(int fd, struct file *filp, int on) {
 441         int retval;
 442
 443         retval = fasync_helper(fd, filp, on, &sonypi_device.queue.fasync);
 444         if (retval < 0)
 445                 return retval;
 446         return 0;
 447 }
 448
 449 static int sonypi_misc_release(struct inode * inode, struct file * file) {
 450         sonypi_misc_fasync(-1, file, 0);
 451         down(&sonypi_device.lock);
 452         sonypi_device.open_count--;
 453         up(&sonypi_device.lock);
 454         return 0;
 455 }
 456
 457 static int sonypi_misc_open(struct inode * inode, struct file * file) {
 458         down(&sonypi_device.lock);
 459         /* Flush input queue on first open */
 460         if (!sonypi_device.open_count)
 461                 sonypi_initq();
 462         sonypi_device.open_count++;
 463         up(&sonypi_device.lock);
 464         return 0;
 465 }
 466
 467 static ssize_t sonypi_misc_read(struct file * file, char __user * buf,
 468                         size_t count, loff_t *pos)
 469 {
 470         DECLARE_WAITQUEUE(wait, current);
 471         ssize_t i = count;
 472         unsigned char c;
 473
 474         if (sonypi_emptyq()) {
 475                 if (file->f_flags & O_NONBLOCK)
 476                         return -EAGAIN;
 477                 add_wait_queue(&sonypi_device.queue.proc_list, &wait);
 478 repeat:
 479                 set_current_state(TASK_INTERRUPTIBLE);
 480                 if (sonypi_emptyq() && !signal_pending(current)) {
 481                         schedule();
 482                         goto repeat;
 483                 }
 484                 current->state = TASK_RUNNING;
 485                 remove_wait_queue(&sonypi_device.queue.proc_list, &wait);
 486         }
 487         while (i > 0 && !sonypi_emptyq()) {
 488                 c = sonypi_pullq();
 489                 put_user(c, buf++);
 490                 i--;
 491         }
 492         if (count - i) {
 493                 file->f_dentry->d_inode->i_atime = CURRENT_TIME;
 494                 return count-i;
 495         }
 496         if (signal_pending(current))
 497                 return -ERESTARTSYS;
 498         return 0;
 499 }
 500
 501 static unsigned int sonypi_misc_poll(struct file *file, poll_table * wait) {
 502         poll_wait(file, &sonypi_device.queue.proc_list, wait);
 503         if (!sonypi_emptyq())
 504                 return POLLIN | POLLRDNORM;
 505         return 0;
 506 }
 507
 508 static int sonypi_misc_ioctl(struct inode *ip, struct file *fp,
 509                              unsigned int cmd, unsigned long arg) {
 510         int ret = 0;
 511         void __user *argp = (void __user *)arg;
 512         u8 val8;
 513         u16 val16;
 514
 515         down(&sonypi_device.lock);
 516         switch (cmd) {
 517         case SONYPI_IOCGBRT:
 518                 if (sonypi_ec_read(SONYPI_LCD_LIGHT, &val8)) {
 519                         ret = -EIO;
 520                         break;
 521                 }
 522                 if (copy_to_user(argp, &val8, sizeof(val8)))
 523                         ret = -EFAULT;
 524                 break;
 525         case SONYPI_IOCSBRT:
 526                 if (copy_from_user(&val8, argp, sizeof(val8))) {
 527                         ret = -EFAULT;
 528                         break;
 529                 }
 530                 if (sonypi_ec_write(SONYPI_LCD_LIGHT, val8))
 531                         ret = -EIO;
 532                 break;
 533         case SONYPI_IOCGBAT1CAP:
 534                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
 535                         ret = -EIO;
 536                         break;
 537                 }
 538                 if (copy_to_user(argp, &val16, sizeof(val16)))
 539                         ret = -EFAULT;
 540                 break;
 541         case SONYPI_IOCGBAT1REM:
 542                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
 543                         ret = -EIO;
 544                         break;
 545                 }
 546                 if (copy_to_user(argp, &val16, sizeof(val16)))
 547                         ret = -EFAULT;
 548                 break;
 549         case SONYPI_IOCGBAT2CAP:
 550                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
 551                         ret = -EIO;
 552                         break;
 553                 }
 554                 if (copy_to_user(argp, &val16, sizeof(val16)))
 555                         ret = -EFAULT;
 556                 break;
 557         case SONYPI_IOCGBAT2REM:
 558                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
 559                         ret = -EIO;
 560                         break;
 561                 }
 562                 if (copy_to_user(argp, &val16, sizeof(val16)))
 563                         ret = -EFAULT;
 564                 break;
 565         case SONYPI_IOCGBATFLAGS:
 566                 if (sonypi_ec_read(SONYPI_BAT_FLAGS, &val8)) {
 567                         ret = -EIO;
 568                         break;
 569                 }
 570                 val8 &= 0x07;
 571                 if (copy_to_user(argp, &val8, sizeof(val8)))
 572                         ret = -EFAULT;
 573                 break;
 574         case SONYPI_IOCGBLUE:
 575                 val8 = sonypi_device.bluetooth_power;
 576                 if (copy_to_user(argp, &val8, sizeof(val8)))
 577                         ret = -EFAULT;
 578                 break;
 579         case SONYPI_IOCSBLUE:
 580                 if (copy_from_user(&val8, argp, sizeof(val8))) {
 581                         ret = -EFAULT;
 582                         break;
 583                 }
 584                 sonypi_setbluetoothpower(val8);
 585                 break;
 586         default:
 587                 ret = -EINVAL;
 588         }
 589         up(&sonypi_device.lock);
 590         return ret;
 591 }
 592
 593 static struct file_operations sonypi_misc_fops = {
 594         .owner          = THIS_MODULE,
 595         .read           = sonypi_misc_read,
 596         .poll           = sonypi_misc_poll,
 597         .open           = sonypi_misc_open,
 598         .release        = sonypi_misc_release,
 599         .fasync         = sonypi_misc_fasync,
 600         .ioctl          = sonypi_misc_ioctl,
 601 };
 602
 603 struct miscdevice sonypi_misc_device = {
 604         -1, "sonypi", &sonypi_misc_fops
 605 };
 606
 607 #ifdef CONFIG_PM
 608 static int old_camera_power;
 609
 610 static int sonypi_suspend(struct sys_device *dev, u32 state) {
 611         sonypi_call2(0x81, 0); /* make sure we don't get any more events */
 612         if (camera) {
 613                 old_camera_power = sonypi_device.camera_power;
 614                 sonypi_camera_off();
 615         }
 616         if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE2)
 617                 sonypi_type2_dis();
 618         else
 619                 sonypi_type1_dis();
 620         /* disable ACPI mode */
 621         if (!SONYPI_ACPI_ACTIVE && fnkeyinit)
 622                 outb(0xf1, 0xb2);
 623         return 0;
 624 }
 625
 626 static int sonypi_resume(struct sys_device *dev) {
 627         /* Enable ACPI mode to get Fn key events */
 628         if (!SONYPI_ACPI_ACTIVE && fnkeyinit)
 629                 outb(0xf0, 0xb2);
 630         if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE2)
 631                 sonypi_type2_srs();
 632         else
 633                 sonypi_type1_srs();
 634         sonypi_call1(0x82);
 635         sonypi_call2(0x81, 0xff);
 636         if (compat)
 637                 sonypi_call1(0x92);
 638         else
 639                 sonypi_call1(0x82);
 640         if (camera && old_camera_power)
 641                 sonypi_camera_on();
 642         return 0;
 643 }
 644
 645 /* Old PM scheme */
 646 static int sonypi_pm_callback(struct pm_dev *dev, pm_request_t rqst, void *data) {
 647
 648         switch (rqst) {
 649                 case PM_SUSPEND:
 650                         sonypi_suspend(NULL, 0);
 651                         break;
 652                 case PM_RESUME:
 653                         sonypi_resume(NULL);
 654                         break;
 655         }
 656         return 0;
 657 }
 658
 659 /* New PM scheme (device model) */
 660 static struct sysdev_class sonypi_sysclass = {
 661         set_kset_name("sonypi"),
 662         .suspend = sonypi_suspend,
 663         .resume = sonypi_resume,
 664 };
 665
 666 static struct sys_device sonypi_sysdev = {
 667         .id = 0,
 668         .cls = &sonypi_sysclass,
 669 };
 670 #endif
 671
 672 static int __devinit sonypi_probe(struct pci_dev *pcidev) {
 673         int i, ret;
 674         struct sonypi_ioport_list *ioport_list;
 675         struct sonypi_irq_list *irq_list;
 676
 677         sonypi_device.dev = pcidev;
 678         if (pcidev)
 679                 sonypi_device.model = SONYPI_DEVICE_MODEL_TYPE1;
 680         else
 681                 sonypi_device.model = SONYPI_DEVICE_MODEL_TYPE2;
 682         sonypi_initq();
 683         init_MUTEX(&sonypi_device.lock);
 684         sonypi_device.bluetooth_power = 0;
 685
 686         if (pcidev && pci_enable_device(pcidev)) {
 687                 printk(KERN_ERR "sonypi: pci_enable_device failed\n");
 688                 ret = -EIO;
 689                 goto out1;
 690         }
 691
 692         sonypi_misc_device.minor = (minor == -1) ?
 693                 MISC_DYNAMIC_MINOR : minor;
 694         if ((ret = misc_register(&sonypi_misc_device))) {
 695                 printk(KERN_ERR "sonypi: misc_register failed\n");
 696                 goto out1;
 697         }
 698
 699         if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE2) {
 700                 ioport_list = sonypi_type2_ioport_list;
 701                 sonypi_device.region_size = SONYPI_TYPE2_REGION_SIZE;
 702                 sonypi_device.evtype_offset = SONYPI_TYPE2_EVTYPE_OFFSET;
 703                 irq_list = sonypi_type2_irq_list;
 704         }
 705         else {
 706                 ioport_list = sonypi_type1_ioport_list;
 707                 sonypi_device.region_size = SONYPI_TYPE1_REGION_SIZE;
 708                 sonypi_device.evtype_offset = SONYPI_TYPE1_EVTYPE_OFFSET;
 709                 irq_list = sonypi_type1_irq_list;
 710         }
 711
 712         for (i = 0; ioport_list[i].port1; i++) {
 713                 if (request_region(ioport_list[i].port1,
 714                                    sonypi_device.region_size,
 715                                    "Sony Programable I/O Device")) {
 716                         /* get the ioport */
 717                         sonypi_device.ioport1 = ioport_list[i].port1;
 718                         sonypi_device.ioport2 = ioport_list[i].port2;
 719                         break;
 720                 }
 721         }
 722         if (!sonypi_device.ioport1) {
 723                 printk(KERN_ERR "sonypi: request_region failed\n");
 724                 ret = -ENODEV;
 725                 goto out2;
 726         }
 727
 728         for (i = 0; irq_list[i].irq; i++) {
 729
 730                 sonypi_device.irq = irq_list[i].irq;
 731                 sonypi_device.bits = irq_list[i].bits;
 732
 733                 /* Enable sonypi IRQ settings */
 734                 if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE2)
 735                         sonypi_type2_srs();
 736                 else
 737                         sonypi_type1_srs();
 738
 739                 sonypi_call1(0x82);
 740                 sonypi_call2(0x81, 0xff);
 741                 if (compat)
 742                         sonypi_call1(0x92);
 743                 else
 744                         sonypi_call1(0x82);
 745
 746                 /* Now try requesting the irq from the system */
 747                 if (!request_irq(sonypi_device.irq, sonypi_irq,
 748                                  SA_SHIRQ, "sonypi", sonypi_irq))
 749                         break;
 750
 751                 /* If request_irq failed, disable sonypi IRQ settings */
 752                 if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE2)
 753                         sonypi_type2_dis();
 754                 else
 755                         sonypi_type1_dis();
 756         }
 757
 758         if (!irq_list[i].irq) {
 759                 printk(KERN_ERR "sonypi: request_irq failed\n");
 760                 ret = -ENODEV;
 761                 goto out3;
 762         }
 763
 764 #ifdef CONFIG_PM
 765         sonypi_device.pm = pm_register(PM_PCI_DEV, 0, sonypi_pm_callback);
 766
 767         if (sysdev_class_register(&sonypi_sysclass) != 0) {
 768                 printk(KERN_ERR "sonypi: sysdev_class_register failed\n");
 769                 ret = -ENODEV;
 770                 goto out4;
 771         }
 772         if (sysdev_register(&sonypi_sysdev) != 0) {
 773                 printk(KERN_ERR "sonypi: sysdev_register failed\n");
 774                 ret = -ENODEV;
 775                 goto out5;
 776         }
 777 #endif
 778
 779         /* Enable ACPI mode to get Fn key events */
 780         if (!SONYPI_ACPI_ACTIVE && fnkeyinit)
 781                 outb(0xf0, 0xb2);
 782
 783         printk(KERN_INFO "sonypi: Sony Programmable I/O Controller Driver v%d.%d.\n",
 784                SONYPI_DRIVER_MAJORVERSION,
 785                SONYPI_DRIVER_MINORVERSION);
 786         printk(KERN_INFO "sonypi: detected %s model, "
 787                "verbose = %d, fnkeyinit = %s, camera = %s, "
 788                "compat = %s, mask = 0x%08lx, useinput = %s, acpi = %s\n",
 789                (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE1) ?
 790                         "type1" : "type2",
 791                verbose,
 792                fnkeyinit ? "on" : "off",
 793                camera ? "on" : "off",
 794                compat ? "on" : "off",
 795                mask,
 796                useinput ? "on" : "off",
 797                SONYPI_ACPI_ACTIVE ? "on" : "off");
 798         printk(KERN_INFO "sonypi: enabled at irq=%d, port1=0x%x, port2=0x%x\n",
 799                sonypi_device.irq,
 800                sonypi_device.ioport1, sonypi_device.ioport2);
 801
 802         if (minor == -1)
 803                 printk(KERN_INFO "sonypi: device allocated minor is %d\n",
 804                        sonypi_misc_device.minor);
 805
 806 #ifdef SONYPI_USE_INPUT
 807         if (useinput) {
 808                 /* Initialize the Input Drivers: */
 809                 sonypi_device.jog_dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
 810                 sonypi_device.jog_dev.keybit[LONG(BTN_MOUSE)] = BIT(BTN_MIDDLE);
 811                 sonypi_device.jog_dev.relbit[0] = BIT(REL_WHEEL);
 812                 sonypi_device.jog_dev.name = (char *) kmalloc(
 813                         sizeof(SONYPI_INPUTNAME), GFP_KERNEL);
 814                 sprintf(sonypi_device.jog_dev.name, SONYPI_INPUTNAME);
 815                 sonypi_device.jog_dev.id.bustype = BUS_ISA;
 816                 sonypi_device.jog_dev.id.vendor = PCI_VENDOR_ID_SONY;
 817
 818                 input_register_device(&sonypi_device.jog_dev);
 819                 printk(KERN_INFO "%s installed.\n", sonypi_device.jog_dev.name);
 820         }
 821 #endif /* SONYPI_USE_INPUT */
 822
 823         return 0;
 824
 825 #ifdef CONFIG_PM
 826 out5:
 827         sysdev_class_unregister(&sonypi_sysclass);
 828 out4:
 829         free_irq(sonypi_device.irq, sonypi_irq);
 830 #endif
 831 out3:
 832         release_region(sonypi_device.ioport1, sonypi_device.region_size);
 833 out2:
 834         misc_deregister(&sonypi_misc_device);
 835 out1:
 836         return ret;
 837 }
 838
 839 static void __devexit sonypi_remove(void) {
 840
 841 #ifdef CONFIG_PM
 842         pm_unregister(sonypi_device.pm);
 843
 844         sysdev_unregister(&sonypi_sysdev);
 845         sysdev_class_unregister(&sonypi_sysclass);
 846 #endif
 847
 848         sonypi_call2(0x81, 0); /* make sure we don't get any more events */
 849
 850 #ifdef SONYPI_USE_INPUT
 851         if (useinput) {
 852                 input_unregister_device(&sonypi_device.jog_dev);
 853                 kfree(sonypi_device.jog_dev.name);
 854         }
 855 #endif /* SONYPI_USE_INPUT */
 856
 857         if (camera)
 858                 sonypi_camera_off();
 859         if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE2)
 860                 sonypi_type2_dis();
 861         else
 862                 sonypi_type1_dis();
 863         /* disable ACPI mode */
 864         if (!SONYPI_ACPI_ACTIVE && fnkeyinit)
 865                 outb(0xf1, 0xb2);
 866         free_irq(sonypi_device.irq, sonypi_irq);
 867         release_region(sonypi_device.ioport1, sonypi_device.region_size);
 868         misc_deregister(&sonypi_misc_device);
 869         printk(KERN_INFO "sonypi: removed.\n");
 870 }
 871
 872 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
 873         {
 874                 .ident = "Sony Vaio",
 875                 .matches = {
 876                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 877                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
 878                 },
 879         },
 880         {
 881                 .ident = "Sony Vaio",
 882                 .matches = {
 883                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 884                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
 885                 },
 886         },
 887         { }
 888 };
 889
 890 static int __init sonypi_init_module(void)
 891 {
 892         struct pci_dev *pcidev = NULL;
 893         if (dmi_check_system(sonypi_dmi_table)) {
 894                 pcidev = pci_find_device(PCI_VENDOR_ID_INTEL,
 895                                          PCI_DEVICE_ID_INTEL_82371AB_3,
 896                                          NULL);
 897                 return sonypi_probe(pcidev);
 898         }
 899         else
 900                 return -ENODEV;
 901 }
 902
 903 static void __exit sonypi_cleanup_module(void) {
 904         sonypi_remove();
 905 }
 906
 907 #ifndef MODULE
 908 static int __init sonypi_setup(char *str)  {
 909         int ints[8];
 910
 911         str = get_options(str, ARRAY_SIZE(ints), ints);
 912         if (ints[0] <= 0)
 913                 goto out;
 914         minor = ints[1];
 915         if (ints[0] == 1)
 916                 goto out;
 917         verbose = ints[2];
 918         if (ints[0] == 2)
 919                 goto out;
 920         fnkeyinit = ints[3];
 921         if (ints[0] == 3)
 922                 goto out;
 923         camera = ints[4];
 924         if (ints[0] == 4)
 925                 goto out;
 926         compat = ints[5];
 927         if (ints[0] == 5)
 928                 goto out;
 929         mask = ints[6];
 930         if (ints[0] == 6)
 931                 goto out;
 932         useinput = ints[7];
 933 out:
 934         return 1;
 935 }
 936
 937 __setup("sonypi=", sonypi_setup);
 938 #endif /* !MODULE */
 939
 940 /* Module entry points */
 941 module_init(sonypi_init_module);
 942 module_exit(sonypi_cleanup_module);
 943
 944 MODULE_AUTHOR("Stelian Pop <stelian@popies.net>");
 945 MODULE_DESCRIPTION("Sony Programmable I/O Control Device driver");
 946 MODULE_LICENSE("GPL");
 947
 948
 949 MODULE_PARM(minor,"i");
 950 MODULE_PARM_DESC(minor, "minor number of the misc device, default is -1 (automatic)");
 951 MODULE_PARM(verbose,"i");
 952 MODULE_PARM_DESC(verbose, "be verbose, default is 0 (no)");
 953 MODULE_PARM(fnkeyinit,"i");
 954 MODULE_PARM_DESC(fnkeyinit, "set this if your Fn keys do not generate any event");
 955 MODULE_PARM(camera,"i");
 956 MODULE_PARM_DESC(camera, "set this if you have a MotionEye camera (PictureBook series)");
 957 MODULE_PARM(compat,"i");
 958 MODULE_PARM_DESC(compat, "set this if you want to enable backward compatibility mode");
 959 MODULE_PARM(mask, "i");
 960 MODULE_PARM_DESC(mask, "set this to the mask of event you want to enable (see doc)");
 961 MODULE_PARM(useinput, "i");
 962 MODULE_PARM_DESC(useinput, "if you have a jogdial, set this if you would like it to use the modern Linux Input Driver system");
 963
 964 EXPORT_SYMBOL(sonypi_camera_command);