drivers/pcmcia/ti113x.h

   1 /*
   2  * ti113x.h 1.16 1999/10/25 20:03:34
   3  *
   4  * The contents of this file are subject to the Mozilla Public License
   5  * Version 1.1 (the "License"); you may not use this file except in
   6  * compliance with the License. You may obtain a copy of the License
   7  * at http://www.mozilla.org/MPL/
   8  *
   9  * Software distributed under the License is distributed on an "AS IS"
  10  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  11  * the License for the specific language governing rights and
  12  * limitations under the License.
  13  *
  14  * The initial developer of the original code is David A. Hinds
  15  * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
  16  * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
  17  *
  18  * Alternatively, the contents of this file may be used under the
  19  * terms of the GNU General Public License version 2 (the "GPL"), in which
  20  * case the provisions of the GPL are applicable instead of the
  21  * above.  If you wish to allow the use of your version of this file
  22  * only under the terms of the GPL and not to allow others to use
  23  * your version of this file under the MPL, indicate your decision by
  24  * deleting the provisions above and replace them with the notice and
  25  * other provisions required by the GPL.  If you do not delete the
  26  * provisions above, a recipient may use your version of this file
  27  * under either the MPL or the GPL.
  28  */
  29
  30 #ifndef _LINUX_TI113X_H
  31 #define _LINUX_TI113X_H
  32
  33 #include <linux/config.h>
  34
  35 /* Register definitions for TI 113X PCI-to-CardBus bridges */
  36
  37 /* System Control Register */
  38 #define TI113X_SYSTEM_CONTROL           0x0080  /* 32 bit */
  39 #define  TI113X_SCR_SMIROUTE            0x04000000
  40 #define  TI113X_SCR_SMISTATUS           0x02000000
  41 #define  TI113X_SCR_SMIENB              0x01000000
  42 #define  TI113X_SCR_VCCPROT             0x00200000
  43 #define  TI113X_SCR_REDUCEZV            0x00100000
  44 #define  TI113X_SCR_CDREQEN             0x00080000
  45 #define  TI113X_SCR_CDMACHAN            0x00070000
  46 #define  TI113X_SCR_SOCACTIVE           0x00002000
  47 #define  TI113X_SCR_PWRSTREAM           0x00000800
  48 #define  TI113X_SCR_DELAYUP             0x00000400
  49 #define  TI113X_SCR_DELAYDOWN           0x00000200
  50 #define  TI113X_SCR_INTERROGATE         0x00000100
  51 #define  TI113X_SCR_CLKRUN_SEL          0x00000080
  52 #define  TI113X_SCR_PWRSAVINGS          0x00000040
  53 #define  TI113X_SCR_SUBSYSRW            0x00000020
  54 #define  TI113X_SCR_CB_DPAR             0x00000010
  55 #define  TI113X_SCR_CDMA_EN             0x00000008
  56 #define  TI113X_SCR_ASYNC_IRQ           0x00000004
  57 #define  TI113X_SCR_KEEPCLK             0x00000002
  58 #define  TI113X_SCR_CLKRUN_ENA          0x00000001
  59
  60 #define  TI122X_SCR_SER_STEP            0xc0000000
  61 #define  TI122X_SCR_INTRTIE             0x20000000
  62 #define  TI122X_SCR_CBRSVD              0x00400000
  63 #define  TI122X_SCR_MRBURSTDN           0x00008000
  64 #define  TI122X_SCR_MRBURSTUP           0x00004000
  65 #define  TI122X_SCR_RIMUX               0x00000001
  66
  67 /* Multimedia Control Register */
  68 #define TI1250_MULTIMEDIA_CTL           0x0084  /* 8 bit */
  69 #define  TI1250_MMC_ZVOUTEN             0x80
  70 #define  TI1250_MMC_PORTSEL             0x40
  71 #define  TI1250_MMC_ZVEN1               0x02
  72 #define  TI1250_MMC_ZVEN0               0x01
  73
  74 #define TI1250_GENERAL_STATUS           0x0085  /* 8 bit */
  75 #define TI1250_GPIO0_CONTROL            0x0088  /* 8 bit */
  76 #define TI1250_GPIO1_CONTROL            0x0089  /* 8 bit */
  77 #define TI1250_GPIO2_CONTROL            0x008a  /* 8 bit */
  78 #define TI1250_GPIO3_CONTROL            0x008b  /* 8 bit */
  79 #define TI1250_GPIO_MODE_MASK           0xc0
  80
  81 /* IRQMUX/MFUNC Register */
  82 #define TI122X_MFUNC                    0x008c  /* 32 bit */
  83 #define TI122X_MFUNC0_MASK              0x0000000f
  84 #define TI122X_MFUNC1_MASK              0x000000f0
  85 #define TI122X_MFUNC2_MASK              0x00000f00
  86 #define TI122X_MFUNC3_MASK              0x0000f000
  87 #define TI122X_MFUNC4_MASK              0x000f0000
  88 #define TI122X_MFUNC5_MASK              0x00f00000
  89 #define TI122X_MFUNC6_MASK              0x0f000000
  90
  91 #define TI122X_MFUNC0_INTA              0x00000002
  92 #define TI125X_MFUNC0_INTB              0x00000001
  93 #define TI122X_MFUNC1_INTB              0x00000020
  94 #define TI122X_MFUNC3_IRQSER            0x00001000
  95
  96
  97 /* Retry Status Register */
  98 #define TI113X_RETRY_STATUS             0x0090  /* 8 bit */
  99 #define  TI113X_RSR_PCIRETRY            0x80
 100 #define  TI113X_RSR_CBRETRY             0x40
 101 #define  TI113X_RSR_TEXP_CBB            0x20
 102 #define  TI113X_RSR_MEXP_CBB            0x10
 103 #define  TI113X_RSR_TEXP_CBA            0x08
 104 #define  TI113X_RSR_MEXP_CBA            0x04
 105 #define  TI113X_RSR_TEXP_PCI            0x02
 106 #define  TI113X_RSR_MEXP_PCI            0x01
 107
 108 /* Card Control Register */
 109 #define TI113X_CARD_CONTROL             0x0091  /* 8 bit */
 110 #define  TI113X_CCR_RIENB               0x80
 111 #define  TI113X_CCR_ZVENABLE            0x40
 112 #define  TI113X_CCR_PCI_IRQ_ENA         0x20
 113 #define  TI113X_CCR_PCI_IREQ            0x10
 114 #define  TI113X_CCR_PCI_CSC             0x08
 115 #define  TI113X_CCR_SPKROUTEN           0x02
 116 #define  TI113X_CCR_IFG                 0x01
 117
 118 #define  TI1220_CCR_PORT_SEL            0x20
 119 #define  TI122X_CCR_AUD2MUX             0x04
 120
 121 /* Device Control Register */
 122 #define TI113X_DEVICE_CONTROL           0x0092  /* 8 bit */
 123 #define  TI113X_DCR_5V_FORCE            0x40
 124 #define  TI113X_DCR_3V_FORCE            0x20
 125 #define  TI113X_DCR_IMODE_MASK          0x06
 126 #define  TI113X_DCR_IMODE_ISA           0x02
 127 #define  TI113X_DCR_IMODE_SERIAL        0x04
 128
 129 #define  TI12XX_DCR_IMODE_PCI_ONLY      0x00
 130 #define  TI12XX_DCR_IMODE_ALL_SERIAL    0x06
 131
 132 /* Buffer Control Register */
 133 #define TI113X_BUFFER_CONTROL           0x0093  /* 8 bit */
 134 #define  TI113X_BCR_CB_READ_DEPTH       0x08
 135 #define  TI113X_BCR_CB_WRITE_DEPTH      0x04
 136 #define  TI113X_BCR_PCI_READ_DEPTH      0x02
 137 #define  TI113X_BCR_PCI_WRITE_DEPTH     0x01
 138
 139 /* Diagnostic Register */
 140 #define TI1250_DIAGNOSTIC               0x0093  /* 8 bit */
 141 #define  TI1250_DIAG_TRUE_VALUE         0x80
 142 #define  TI1250_DIAG_PCI_IREQ           0x40
 143 #define  TI1250_DIAG_PCI_CSC            0x20
 144 #define  TI1250_DIAG_ASYNC_CSC          0x01
 145
 146 /* DMA Registers */
 147 #define TI113X_DMA_0                    0x0094  /* 32 bit */
 148 #define TI113X_DMA_1                    0x0098  /* 32 bit */
 149
 150 /* ExCA IO offset registers */
 151 #define TI113X_IO_OFFSET(map)           (0x36+((map)<<1))
 152
 153 /* EnE test register */
 154 #define ENE_TEST_C9                     0xc9    /* 8bit */
 155 #define ENE_TEST_C9_TLTENABLE           0x02
 156
 157 /*
 158  * Texas Instruments CardBus controller overrides.
 159  */
 160 #define ti_sysctl(socket)       ((socket)->private[0])
 161 #define ti_cardctl(socket)      ((socket)->private[1])
 162 #define ti_devctl(socket)       ((socket)->private[2])
 163 #define ti_diag(socket)         ((socket)->private[3])
 164 #define ti_mfunc(socket)        ((socket)->private[4])
 165 #define ene_test_c9(socket)     ((socket)->private[5])
 166
 167 /*
 168  * These are the TI specific power management handlers.
 169  */
 170 static void ti_save_state(struct yenta_socket *socket)
 171 {
 172         ti_sysctl(socket) = config_readl(socket, TI113X_SYSTEM_CONTROL);
 173         ti_mfunc(socket) = config_readl(socket, TI122X_MFUNC);
 174         ti_cardctl(socket) = config_readb(socket, TI113X_CARD_CONTROL);
 175         ti_devctl(socket) = config_readb(socket, TI113X_DEVICE_CONTROL);
 176         ti_diag(socket) = config_readb(socket, TI1250_DIAGNOSTIC);
 177
 178         if (socket->dev->vendor == PCI_VENDOR_ID_ENE)
 179                 ene_test_c9(socket) = config_readb(socket, ENE_TEST_C9);
 180 }
 181
 182 static void ti_restore_state(struct yenta_socket *socket)
 183 {
 184         config_writel(socket, TI113X_SYSTEM_CONTROL, ti_sysctl(socket));
 185         config_writel(socket, TI122X_MFUNC, ti_mfunc(socket));
 186         config_writeb(socket, TI113X_CARD_CONTROL, ti_cardctl(socket));
 187         config_writeb(socket, TI113X_DEVICE_CONTROL, ti_devctl(socket));
 188         config_writeb(socket, TI1250_DIAGNOSTIC, ti_diag(socket));
 189
 190         if (socket->dev->vendor == PCI_VENDOR_ID_ENE)
 191                 config_writeb(socket, ENE_TEST_C9, ene_test_c9(socket));
 192 }
 193
 194 /*
 195  *      Zoom video control for TI122x/113x chips
 196  */
 197
 198 static void ti_zoom_video(struct pcmcia_socket *sock, int onoff)
 199 {
 200         u8 reg;
 201         struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
 202
 203         /* If we don't have a Zoom Video switch this is harmless,
 204            we just tristate the unused (ZV) lines */
 205         reg = config_readb(socket, TI113X_CARD_CONTROL);
 206         if (onoff)
 207                 /* Zoom zoom, we will all go together, zoom zoom, zoom zoom */
 208                 reg |= TI113X_CCR_ZVENABLE;
 209         else
 210                 reg &= ~TI113X_CCR_ZVENABLE;
 211         config_writeb(socket, TI113X_CARD_CONTROL, reg);
 212 }
 213
 214 /*
 215  *      The 145x series can also use this. They have an additional
 216  *      ZV autodetect mode we don't use but don't actually need.
 217  *      FIXME: manual says its in func0 and func1 but disagrees with
 218  *      itself about this - do we need to force func0, if so we need
 219  *      to know a lot more about socket pairings in pcmcia_socket than
 220  *      we do now.. uggh.
 221  */
 222
 223 static void ti1250_zoom_video(struct pcmcia_socket *sock, int onoff)
 224 {
 225         struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
 226         int shift = 0;
 227         u8 reg;
 228
 229         ti_zoom_video(sock, onoff);
 230
 231         reg = config_readb(socket, TI1250_MULTIMEDIA_CTL);
 232         reg |= TI1250_MMC_ZVOUTEN;      /* ZV bus enable */
 233
 234         if(PCI_FUNC(socket->dev->devfn)==1)
 235                 shift = 1;
 236
 237         if(onoff)
 238         {
 239                 reg &= ~(1<<6);         /* Clear select bit */
 240                 reg |= shift<<6;        /* Favour our socket */
 241                 reg |= 1<<shift;        /* Socket zoom video on */
 242         }
 243         else
 244         {
 245                 reg &= ~(1<<6);         /* Clear select bit */
 246                 reg |= (1^shift)<<6;    /* Favour other socket */
 247                 reg &= ~(1<<shift);     /* Socket zoon video off */
 248         }
 249
 250         config_writeb(socket, TI1250_MULTIMEDIA_CTL, reg);
 251 }
 252
 253 static void ti_set_zv(struct yenta_socket *socket)
 254 {
 255         if(socket->dev->vendor == PCI_VENDOR_ID_TI)
 256         {
 257                 switch(socket->dev->device)
 258                 {
 259                         /* There may be more .. */
 260                         case PCI_DEVICE_ID_TI_1220:
 261                         case PCI_DEVICE_ID_TI_1221:
 262                         case PCI_DEVICE_ID_TI_1225:
 263                         case PCI_DEVICE_ID_TI_4510:
 264                                 socket->socket.zoom_video = ti_zoom_video;
 265                                 break;
 266                         case PCI_DEVICE_ID_TI_1250:
 267                         case PCI_DEVICE_ID_TI_1251A:
 268                         case PCI_DEVICE_ID_TI_1251B:
 269                         case PCI_DEVICE_ID_TI_1450:
 270                                 socket->socket.zoom_video = ti1250_zoom_video;
 271                 }
 272         }
 273 }
 274
 275
 276 /*
 277  * Generic TI init - TI has an extension for the
 278  * INTCTL register that sets the PCI CSC interrupt.
 279  * Make sure we set it correctly at open and init
 280  * time
 281  * - override: disable the PCI CSC interrupt. This makes
 282  *   it possible to use the CSC interrupt to probe the
 283  *   ISA interrupts.
 284  * - init: set the interrupt to match our PCI state.
 285  *   This makes us correctly get PCI CSC interrupt
 286  *   events.
 287  */
 288 static int ti_init(struct yenta_socket *socket)
 289 {
 290         u8 new, reg = exca_readb(socket, I365_INTCTL);
 291
 292         new = reg & ~I365_INTR_ENA;
 293         if (socket->cb_irq)
 294                 new |= I365_INTR_ENA;
 295         if (new != reg)
 296                 exca_writeb(socket, I365_INTCTL, new);
 297         return 0;
 298 }
 299
 300 static int ti_override(struct yenta_socket *socket)
 301 {
 302         u8 new, reg = exca_readb(socket, I365_INTCTL);
 303
 304         new = reg & ~I365_INTR_ENA;
 305         if (new != reg)
 306                 exca_writeb(socket, I365_INTCTL, new);
 307
 308         ti_set_zv(socket);
 309
 310         return 0;
 311 }
 312
 313 static int ti113x_override(struct yenta_socket *socket)
 314 {
 315         u8 cardctl;
 316
 317         cardctl = config_readb(socket, TI113X_CARD_CONTROL);
 318         cardctl &= ~(TI113X_CCR_PCI_IRQ_ENA | TI113X_CCR_PCI_IREQ | TI113X_CCR_PCI_CSC);
 319         if (socket->cb_irq)
 320                 cardctl |= TI113X_CCR_PCI_IRQ_ENA | TI113X_CCR_PCI_CSC | TI113X_CCR_PCI_IREQ;
 321         config_writeb(socket, TI113X_CARD_CONTROL, cardctl);
 322
 323         return ti_override(socket);
 324 }
 325
 326
 327 /* irqrouting for func0, probes PCI interrupt and ISA interrupts */
 328 static void ti12xx_irqroute_func0(struct yenta_socket *socket)
 329 {
 330         u32 mfunc, mfunc_old, devctl;
 331         u8 gpio3, gpio3_old;
 332         int pci_irq_status;
 333
 334         mfunc = mfunc_old = config_readl(socket, TI122X_MFUNC);
 335         devctl = config_readb(socket, TI113X_DEVICE_CONTROL);
 336         printk(KERN_INFO "Yenta TI: socket %s, mfunc 0x%08x, devctl 0x%02x\n",
 337                pci_name(socket->dev), mfunc, devctl);
 338
 339         /* make sure PCI interrupts are enabled before probing */
 340         ti_init(socket);
 341
 342         /* test PCI interrupts first. only try fixing if return value is 0! */
 343         pci_irq_status = yenta_probe_cb_irq(socket);
 344         if (pci_irq_status)
 345                 goto out;
 346
 347         /*
 348          * We're here which means PCI interrupts are _not_ delivered. try to
 349          * find the right setting (all serial or parallel)
 350          */
 351         printk(KERN_INFO "Yenta TI: socket %s probing PCI interrupt failed, trying to fix\n",
 352                pci_name(socket->dev));
 353
 354         /* for serial PCI make sure MFUNC3 is set to IRQSER */
 355         if ((devctl & TI113X_DCR_IMODE_MASK) == TI12XX_DCR_IMODE_ALL_SERIAL) {
 356                 switch (socket->dev->device) {
 357                 case PCI_DEVICE_ID_TI_1250:
 358                 case PCI_DEVICE_ID_TI_1251A:
 359                 case PCI_DEVICE_ID_TI_1251B:
 360                 case PCI_DEVICE_ID_TI_1450:
 361                 case PCI_DEVICE_ID_TI_1451A:
 362                 case PCI_DEVICE_ID_TI_4450:
 363                 case PCI_DEVICE_ID_TI_4451:
 364                         /* these chips have no IRQSER setting in MFUNC3  */
 365                         break;
 366
 367                 default:
 368                         mfunc = (mfunc & ~TI122X_MFUNC3_MASK) | TI122X_MFUNC3_IRQSER;
 369
 370                         /* write down if changed, probe */
 371                         if (mfunc != mfunc_old) {
 372                                 config_writel(socket, TI122X_MFUNC, mfunc);
 373
 374                                 pci_irq_status = yenta_probe_cb_irq(socket);
 375                                 if (pci_irq_status == 1) {
 376                                         printk(KERN_INFO "Yenta TI: socket %s all-serial interrupts ok\n",
 377                                                pci_name(socket->dev));
 378                                         mfunc_old = mfunc;
 379                                         goto out;
 380                                 }
 381
 382                                 /* not working, back to old value */
 383                                 mfunc = mfunc_old;
 384                                 config_writel(socket, TI122X_MFUNC, mfunc);
 385
 386                                 if (pci_irq_status == -1)
 387                                         goto out;
 388                         }
 389                 }
 390
 391                 /* serial PCI interrupts not working fall back to parallel */
 392                 printk(KERN_INFO "Yenta TI: socket %s falling back to parallel PCI interrupts\n",
 393                        pci_name(socket->dev));
 394                 devctl &= ~TI113X_DCR_IMODE_MASK;
 395                 devctl |= TI113X_DCR_IMODE_SERIAL; /* serial ISA could be right */
 396                 config_writeb(socket, TI113X_DEVICE_CONTROL, devctl);
 397         }
 398
 399         /* parallel PCI interrupts: route INTA */
 400         switch (socket->dev->device) {
 401         case PCI_DEVICE_ID_TI_1250:
 402         case PCI_DEVICE_ID_TI_1251A:
 403         case PCI_DEVICE_ID_TI_1251B:
 404         case PCI_DEVICE_ID_TI_1450:
 405                 /* make sure GPIO3 is set to INTA */
 406                 gpio3 = gpio3_old = config_readb(socket, TI1250_GPIO3_CONTROL);
 407                 gpio3 &= ~TI1250_GPIO_MODE_MASK;
 408                 if (gpio3 != gpio3_old)
 409                         config_writeb(socket, TI1250_GPIO3_CONTROL, gpio3);
 410                 break;
 411
 412         default:
 413                 gpio3 = gpio3_old = 0;
 414
 415                 mfunc = (mfunc & ~TI122X_MFUNC0_MASK) | TI122X_MFUNC0_INTA;
 416                 if (mfunc != mfunc_old)
 417                         config_writel(socket, TI122X_MFUNC, mfunc);
 418         }
 419
 420         /* time to probe again */
 421         pci_irq_status = yenta_probe_cb_irq(socket);
 422         if (pci_irq_status == 1) {
 423                 mfunc_old = mfunc;
 424                 printk(KERN_INFO "Yenta TI: socket %s parallel PCI interrupts ok\n",
 425                        pci_name(socket->dev));
 426         } else {
 427                 /* not working, back to old value */
 428                 mfunc = mfunc_old;
 429                 config_writel(socket, TI122X_MFUNC, mfunc);
 430                 if (gpio3 != gpio3_old)
 431                         config_writeb(socket, TI1250_GPIO3_CONTROL, gpio3_old);
 432         }
 433
 434 out:
 435         if (pci_irq_status < 1) {
 436                 socket->cb_irq = 0;
 437                 printk(KERN_INFO "Yenta TI: socket %s no PCI interrupts. Fish. Please report.\n",
 438                        pci_name(socket->dev));
 439         }
 440 }
 441
 442
 443 /* changes the irq of func1 to match that of func0 */
 444 static int ti12xx_align_irqs(struct yenta_socket *socket, int *old_irq)
 445 {
 446         struct pci_dev *func0;
 447
 448         /* find func0 device */
 449         func0 = pci_get_slot(socket->dev->bus, socket->dev->devfn & ~0x07);
 450         if (!func0)
 451                 return 0;
 452
 453         if (old_irq)
 454                 *old_irq = socket->cb_irq;
 455         socket->cb_irq = socket->dev->irq = func0->irq;
 456
 457         pci_dev_put(func0);
 458
 459         return 1;
 460 }
 461
 462 /*
 463  * ties INTA and INTB together. also changes the devices irq to that of
 464  * the function 0 device. call from func1 only.
 465  * returns 1 if INTRTIE changed, 0 otherwise.
 466  */
 467 static int ti12xx_tie_interrupts(struct yenta_socket *socket, int *old_irq)
 468 {
 469         u32 sysctl;
 470         int ret;
 471
 472         sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL);
 473         if (sysctl & TI122X_SCR_INTRTIE)
 474                 return 0;
 475
 476         /* align */
 477         ret = ti12xx_align_irqs(socket, old_irq);
 478         if (!ret)
 479                 return 0;
 480
 481         /* tie */
 482         sysctl |= TI122X_SCR_INTRTIE;
 483         config_writel(socket, TI113X_SYSTEM_CONTROL, sysctl);
 484
 485         return 1;
 486 }
 487
 488 /* undo what ti12xx_tie_interrupts() did */
 489 static void ti12xx_untie_interrupts(struct yenta_socket *socket, int old_irq)
 490 {
 491         u32 sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL);
 492         sysctl &= ~TI122X_SCR_INTRTIE;
 493         config_writel(socket, TI113X_SYSTEM_CONTROL, sysctl);
 494
 495         socket->cb_irq = socket->dev->irq = old_irq;
 496 }
 497
 498 /*
 499  * irqrouting for func1, plays with INTB routing
 500  * only touches MFUNC for INTB routing. all other bits are taken
 501  * care of in func0 already.
 502  */
 503 static void ti12xx_irqroute_func1(struct yenta_socket *socket)
 504 {
 505         u32 mfunc, mfunc_old, devctl, sysctl;
 506         int pci_irq_status;
 507
 508         mfunc = mfunc_old = config_readl(socket, TI122X_MFUNC);
 509         devctl = config_readb(socket, TI113X_DEVICE_CONTROL);
 510         printk(KERN_INFO "Yenta TI: socket %s, mfunc 0x%08x, devctl 0x%02x\n",
 511                pci_name(socket->dev), mfunc, devctl);
 512
 513         /* if IRQs are configured as tied, align irq of func1 with func0 */
 514         sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL);
 515         if (sysctl & TI122X_SCR_INTRTIE)
 516                 ti12xx_align_irqs(socket, NULL);
 517
 518         /* make sure PCI interrupts are enabled before probing */
 519         ti_init(socket);
 520
 521         /* test PCI interrupts first. only try fixing if return value is 0! */
 522         pci_irq_status = yenta_probe_cb_irq(socket);
 523         if (pci_irq_status)
 524                 goto out;
 525
 526         /*
 527          * We're here which means PCI interrupts are _not_ delivered. try to
 528          * find the right setting
 529          */
 530         printk(KERN_INFO "Yenta TI: socket %s probing PCI interrupt failed, trying to fix\n",
 531                pci_name(socket->dev));
 532
 533
 534         /* if all serial: set INTRTIE, probe again */
 535         if ((devctl & TI113X_DCR_IMODE_MASK) == TI12XX_DCR_IMODE_ALL_SERIAL) {
 536                 int old_irq;
 537
 538                 if (ti12xx_tie_interrupts(socket, &old_irq)) {
 539                         pci_irq_status = yenta_probe_cb_irq(socket);
 540                         if (pci_irq_status == 1) {
 541                                 printk(KERN_INFO "Yenta TI: socket %s all-serial interrupts, tied ok\n",
 542                                        pci_name(socket->dev));
 543                                 goto out;
 544                         }
 545
 546                         ti12xx_untie_interrupts(socket, old_irq);
 547                 }
 548         }
 549         /* parallel PCI: route INTB, probe again */
 550         else {
 551                 int old_irq;
 552
 553                 switch (socket->dev->device) {
 554                 case PCI_DEVICE_ID_TI_1250:
 555                         /* the 1250 has one pin for IRQSER/INTB depending on devctl */
 556                         break;
 557
 558                 case PCI_DEVICE_ID_TI_1251A:
 559                 case PCI_DEVICE_ID_TI_1251B:
 560                 case PCI_DEVICE_ID_TI_1450:
 561                         /*
 562                          *  those have a pin for IRQSER/INTB plus INTB in MFUNC0
 563                          *  we alread probed the shared pin, now go for MFUNC0
 564                          */
 565                         mfunc = (mfunc & ~TI122X_MFUNC0_MASK) | TI125X_MFUNC0_INTB;
 566                         break;
 567
 568                 default:
 569                         mfunc = (mfunc & ~TI122X_MFUNC1_MASK) | TI122X_MFUNC1_INTB;
 570                         break;
 571                 }
 572
 573                 /* write, probe */
 574                 if (mfunc != mfunc_old) {
 575                         config_writel(socket, TI122X_MFUNC, mfunc);
 576
 577                         pci_irq_status = yenta_probe_cb_irq(socket);
 578                         if (pci_irq_status == 1) {
 579                                 printk(KERN_INFO "Yenta TI: socket %s parallel PCI interrupts ok\n",
 580                                        pci_name(socket->dev));
 581                                 goto out;
 582                         }
 583
 584                         mfunc = mfunc_old;
 585                         config_writel(socket, TI122X_MFUNC, mfunc);
 586
 587                         if (pci_irq_status == -1)
 588                                 goto out;
 589                 }
 590
 591                 /* still nothing: set INTRTIE */
 592                 if (ti12xx_tie_interrupts(socket, &old_irq)) {
 593                         pci_irq_status = yenta_probe_cb_irq(socket);
 594                         if (pci_irq_status == 1) {
 595                                 printk(KERN_INFO "Yenta TI: socket %s parallel PCI interrupts, tied ok\n",
 596                                        pci_name(socket->dev));
 597                                 goto out;
 598                         }
 599
 600                         ti12xx_untie_interrupts(socket, old_irq);
 601                 }
 602         }
 603
 604 out:
 605         if (pci_irq_status < 1) {
 606                 socket->cb_irq = 0;
 607                 printk(KERN_INFO "Yenta TI: socket %s no PCI interrupts. Fish. Please report.\n",
 608                        pci_name(socket->dev));
 609         }
 610 }
 611
 612
 613 /* Returns true value if the second slot of a two-slot controller is empty */
 614 static int ti12xx_2nd_slot_empty(struct yenta_socket *socket)
 615 {
 616         struct pci_dev *func;
 617         struct yenta_socket *slot2;
 618         int devfn;
 619         unsigned int state;
 620         int ret = 1;
 621
 622         /* catch the two-slot controllers */
 623         switch (socket->dev->device) {
 624         case PCI_DEVICE_ID_TI_1220:
 625         case PCI_DEVICE_ID_TI_1221:
 626         case PCI_DEVICE_ID_TI_1225:
 627         case PCI_DEVICE_ID_TI_1251A:
 628         case PCI_DEVICE_ID_TI_1251B:
 629         case PCI_DEVICE_ID_TI_1420:
 630         case PCI_DEVICE_ID_TI_1450:
 631         case PCI_DEVICE_ID_TI_1451A:
 632         case PCI_DEVICE_ID_TI_1520:
 633         case PCI_DEVICE_ID_TI_1620:
 634         case PCI_DEVICE_ID_TI_4520:
 635         case PCI_DEVICE_ID_TI_4450:
 636         case PCI_DEVICE_ID_TI_4451:
 637                 /*
 638                  * there are way more, but they need to be added in yenta_socket.c
 639                  * and pci_ids.h first anyway.
 640                  */
 641                 break;
 642
 643         /* single-slot controllers have the 2nd slot empty always :) */
 644         default:
 645                 return 1;
 646         }
 647
 648         /* get other slot */
 649         devfn = socket->dev->devfn & ~0x07;
 650         func = pci_get_slot(socket->dev->bus,
 651                             (socket->dev->devfn & 0x07) ? devfn : devfn | 0x01);
 652         if (!func)
 653                 return 1;
 654
 655         slot2 = pci_get_drvdata(func);
 656         if (!slot2)
 657                 goto out;
 658
 659         /* check state */
 660         yenta_get_status(&socket->socket, &state);
 661         if (state & SS_DETECT) {
 662                 ret = 0;
 663                 goto out;
 664         }
 665
 666 out:
 667         pci_dev_put(func);
 668         return ret;
 669 }
 670
 671 /*
 672  * TI specifiy parts for the power hook.
 673  *
 674  * some TI's with some CB's produces interrupt storm on power on. it has been
 675  * seen with atheros wlan cards on TI1225 and TI1410. solution is simply to
 676  * disable any CB interrupts during this time.
 677  */
 678 static int ti12xx_power_hook(struct pcmcia_socket *sock, int operation)
 679 {
 680         struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
 681         u32 mfunc, devctl, sysctl;
 682         u8 gpio3;
 683
 684         /* only POWER_PRE and POWER_POST are interesting */
 685         if ((operation != HOOK_POWER_PRE) && (operation != HOOK_POWER_POST))
 686                 return 0;
 687
 688         devctl = config_readb(socket, TI113X_DEVICE_CONTROL);
 689         sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL);
 690         mfunc = config_readl(socket, TI122X_MFUNC);
 691
 692         /*
 693          * all serial/tied: only disable when modparm set. always doing it
 694          * would mean a regression for working setups 'cos it disables the
 695          * interrupts for both both slots on 2-slot controllers
 696          * (and users of single slot controllers where it's save have to
 697          * live with setting the modparm, most don't have to anyway)
 698          */
 699         if (((devctl & TI113X_DCR_IMODE_MASK) == TI12XX_DCR_IMODE_ALL_SERIAL) &&
 700             (pwr_irqs_off || ti12xx_2nd_slot_empty(socket))) {
 701                 switch (socket->dev->device) {
 702                 case PCI_DEVICE_ID_TI_1250:
 703                 case PCI_DEVICE_ID_TI_1251A:
 704                 case PCI_DEVICE_ID_TI_1251B:
 705                 case PCI_DEVICE_ID_TI_1450:
 706                 case PCI_DEVICE_ID_TI_1451A:
 707                 case PCI_DEVICE_ID_TI_4450:
 708                 case PCI_DEVICE_ID_TI_4451:
 709                         /* these chips have no IRQSER setting in MFUNC3  */
 710                         break;
 711
 712                 default:
 713                         if (operation == HOOK_POWER_PRE)
 714                                 mfunc = (mfunc & ~TI122X_MFUNC3_MASK);
 715                         else
 716                                 mfunc = (mfunc & ~TI122X_MFUNC3_MASK) | TI122X_MFUNC3_IRQSER;
 717                 }
 718
 719                 return 0;
 720         }
 721
 722         /* do the job differently for func0/1 */
 723         if ((PCI_FUNC(socket->dev->devfn) == 0) ||
 724             ((sysctl & TI122X_SCR_INTRTIE) &&
 725              (pwr_irqs_off || ti12xx_2nd_slot_empty(socket)))) {
 726                 /* some bridges are different */
 727                 switch (socket->dev->device) {
 728                 case PCI_DEVICE_ID_TI_1250:
 729                 case PCI_DEVICE_ID_TI_1251A:
 730                 case PCI_DEVICE_ID_TI_1251B:
 731                 case PCI_DEVICE_ID_TI_1450:
 732                         /* those oldies use gpio3 for INTA */
 733                         gpio3 = config_readb(socket, TI1250_GPIO3_CONTROL);
 734                         if (operation == HOOK_POWER_PRE)
 735                                 gpio3 = (gpio3 & ~TI1250_GPIO_MODE_MASK) | 0x40;
 736                         else
 737                                 gpio3 &= ~TI1250_GPIO_MODE_MASK;
 738                         config_writeb(socket, TI1250_GPIO3_CONTROL, gpio3);
 739                         break;
 740
 741                 default:
 742                         /* all new bridges are the same */
 743                         if (operation == HOOK_POWER_PRE)
 744                                 mfunc &= ~TI122X_MFUNC0_MASK;
 745                         else
 746                                 mfunc |= TI122X_MFUNC0_INTA;
 747                         config_writel(socket, TI122X_MFUNC, mfunc);
 748                 }
 749         } else {
 750                 switch (socket->dev->device) {
 751                 case PCI_DEVICE_ID_TI_1251A:
 752                 case PCI_DEVICE_ID_TI_1251B:
 753                 case PCI_DEVICE_ID_TI_1450:
 754                         /* those have INTA elsewhere and INTB in MFUNC0 */
 755                         if (operation == HOOK_POWER_PRE)
 756                                 mfunc &= ~TI122X_MFUNC0_MASK;
 757                         else
 758                                 mfunc |= TI125X_MFUNC0_INTB;
 759                         config_writel(socket, TI122X_MFUNC, mfunc);
 760
 761                         break;
 762
 763                 default:
 764                         /* all new bridges are the same */
 765                         if (operation == HOOK_POWER_PRE)
 766                                 mfunc &= ~TI122X_MFUNC1_MASK;
 767                         else
 768                                 mfunc |= TI122X_MFUNC1_INTB;
 769                         config_writel(socket, TI122X_MFUNC, mfunc);
 770                 }
 771         }
 772
 773         return 0;
 774 }
 775
 776 static int ti12xx_override(struct yenta_socket *socket)
 777 {
 778         u32 val, val_orig;
 779
 780         /* make sure that memory burst is active */
 781         val_orig = val = config_readl(socket, TI113X_SYSTEM_CONTROL);
 782         if (disable_clkrun && PCI_FUNC(socket->dev->devfn) == 0) {
 783                 printk(KERN_INFO "Yenta: Disabling CLKRUN feature\n");
 784                 val |= TI113X_SCR_KEEPCLK;
 785         }
 786         if (!(val & TI122X_SCR_MRBURSTUP)) {
 787                 printk(KERN_INFO "Yenta: Enabling burst memory read transactions\n");
 788                 val |= TI122X_SCR_MRBURSTUP;
 789         }
 790         if (val_orig != val)
 791                 config_writel(socket, TI113X_SYSTEM_CONTROL, val);
 792
 793         /*
 794          * for EnE bridges only: clear testbit TLTEnable. this makes the
 795          * RME Hammerfall DSP sound card working.
 796          */
 797         if (socket->dev->vendor == PCI_VENDOR_ID_ENE) {
 798                 u8 test_c9 = config_readb(socket, ENE_TEST_C9);
 799                 test_c9 &= ~ENE_TEST_C9_TLTENABLE;
 800                 config_writeb(socket, ENE_TEST_C9, test_c9);
 801         }
 802
 803         /*
 804          * Yenta expects controllers to use CSCINT to route
 805          * CSC interrupts to PCI rather than INTVAL.
 806          */
 807         val = config_readb(socket, TI1250_DIAGNOSTIC);
 808         printk(KERN_INFO "Yenta: Using %s to route CSC interrupts to PCI\n",
 809                 (val & TI1250_DIAG_PCI_CSC) ? "CSCINT" : "INTVAL");
 810         printk(KERN_INFO "Yenta: Routing CardBus interrupts to %s\n",
 811                 (val & TI1250_DIAG_PCI_IREQ) ? "PCI" : "ISA");
 812
 813         /* do irqrouting, depending on function */
 814         if (PCI_FUNC(socket->dev->devfn) == 0)
 815                 ti12xx_irqroute_func0(socket);
 816         else
 817                 ti12xx_irqroute_func1(socket);
 818
 819         /* install power hook */
 820         socket->socket.power_hook = ti12xx_power_hook;
 821
 822         return ti_override(socket);
 823 }
 824
 825
 826 static int ti1250_override(struct yenta_socket *socket)
 827 {
 828         u8 old, diag;
 829
 830         old = config_readb(socket, TI1250_DIAGNOSTIC);
 831         diag = old & ~(TI1250_DIAG_PCI_CSC | TI1250_DIAG_PCI_IREQ);
 832         if (socket->cb_irq)
 833                 diag |= TI1250_DIAG_PCI_CSC | TI1250_DIAG_PCI_IREQ;
 834
 835         if (diag != old) {
 836                 printk(KERN_INFO "Yenta: adjusting diagnostic: %02x -> %02x\n",
 837                         old, diag);
 838                 config_writeb(socket, TI1250_DIAGNOSTIC, diag);
 839         }
 840
 841         return ti12xx_override(socket);
 842 }
 843
 844 #endif /* _LINUX_TI113X_H */
 845