LXR linux/drivers/pcmcia/topic.h

   1/*
   2 * topic.h 1.8 1999/08/28 04:01:47
   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 * topic.h $Release$ 1999/08/28 04:01:47
  29 */
  30
  31#ifndef _LINUX_TOPIC_H
  32#define _LINUX_TOPIC_H
  33
  34/* Register definitions for Toshiba ToPIC95/97/100 controllers */
  35
  36#define TOPIC_SOCKET_CONTROL            0x0090  /* 32 bit */
  37#define  TOPIC_SCR_IRQSEL               0x00000001
  38
  39#define TOPIC_SLOT_CONTROL              0x00a0  /* 8 bit */
  40#define  TOPIC_SLOT_SLOTON              0x80
  41#define  TOPIC_SLOT_SLOTEN              0x40
  42#define  TOPIC_SLOT_ID_LOCK             0x20
  43#define  TOPIC_SLOT_ID_WP               0x10
  44#define  TOPIC_SLOT_PORT_MASK           0x0c
  45#define  TOPIC_SLOT_PORT_SHIFT          2
  46#define  TOPIC_SLOT_OFS_MASK            0x03
  47
  48#define TOPIC_CARD_CONTROL              0x00a1  /* 8 bit */
  49#define  TOPIC_CCR_INTB                 0x20
  50#define  TOPIC_CCR_INTA                 0x10
  51#define  TOPIC_CCR_CLOCK                0x0c
  52#define  TOPIC_CCR_PCICLK               0x0c
  53#define  TOPIC_CCR_PCICLK_2             0x08
  54#define  TOPIC_CCR_CCLK                 0x04
  55
  56#define TOPIC97_INT_CONTROL             0x00a1  /* 8 bit */
  57#define  TOPIC97_ICR_INTB               0x20
  58#define  TOPIC97_ICR_INTA               0x10
  59#define  TOPIC97_ICR_STSIRQNP           0x04
  60#define  TOPIC97_ICR_IRQNP              0x02
  61#define  TOPIC97_ICR_IRQSEL             0x01
  62
  63#define TOPIC_CARD_DETECT               0x00a3  /* 8 bit */
  64#define  TOPIC_CDR_MODE_PC32            0x80
  65#define  TOPIC_CDR_VS1                  0x04
  66#define  TOPIC_CDR_VS2                  0x02
  67#define  TOPIC_CDR_SW_DETECT            0x01
  68
  69#define TOPIC_REGISTER_CONTROL          0x00a4  /* 32 bit */
  70#define  TOPIC_RCR_RESUME_RESET         0x80000000
  71#define  TOPIC_RCR_REMOVE_RESET         0x40000000
  72#define  TOPIC97_RCR_CLKRUN_ENA         0x20000000
  73#define  TOPIC97_RCR_TESTMODE           0x10000000
  74#define  TOPIC97_RCR_IOPLUP             0x08000000
  75#define  TOPIC_RCR_BUFOFF_PWROFF        0x02000000
  76#define  TOPIC_RCR_BUFOFF_SIGOFF        0x01000000
  77#define  TOPIC97_RCR_CB_DEV_MASK        0x0000f800
  78#define  TOPIC97_RCR_CB_DEV_SHIFT       11
  79#define  TOPIC97_RCR_RI_DISABLE         0x00000004
  80#define  TOPIC97_RCR_CAUDIO_OFF         0x00000002
  81#define  TOPIC_RCR_CAUDIO_INVERT        0x00000001
  82
  83#define TOPIC97_MISC1                   0x00ad  /* 8bit */
  84#define  TOPIC97_MISC1_CLOCKRUN_ENABLE  0x80
  85#define  TOPIC97_MISC1_CLOCKRUN_MODE    0x40
  86#define  TOPIC97_MISC1_DETECT_REQ_ENA   0x10
  87#define  TOPIC97_MISC1_SCK_CLEAR_DIS    0x04
  88#define  TOPIC97_MISC1_R2_LOW_ENABLE    0x10
  89
  90#define TOPIC97_MISC2                   0x00ae  /* 8 bit */
  91#define  TOPIC97_MISC2_SPWRCLK_MASK     0x70
  92#define  TOPIC97_MISC2_SPWRMOD          0x08
  93#define  TOPIC97_MISC2_SPWR_ENABLE      0x04
  94#define  TOPIC97_MISC2_ZV_MODE          0x02
  95#define  TOPIC97_MISC2_ZV_ENABLE        0x01
  96
  97#define TOPIC97_ZOOM_VIDEO_CONTROL      0x009c  /* 8 bit */
  98#define  TOPIC97_ZV_CONTROL_ENABLE      0x01
  99
 100#define TOPIC97_AUDIO_VIDEO_SWITCH      0x003c  /* 8 bit */
 101#define  TOPIC97_AVS_AUDIO_CONTROL      0x02
 102#define  TOPIC97_AVS_VIDEO_CONTROL      0x01
 103
 104#define TOPIC_EXCA_IF_CONTROL           0x3e    /* 8 bit */
 105#define TOPIC_EXCA_IFC_33V_ENA          0x01
 106
 107#define TOPIC_PCI_CFG_PPBCN             0x3e    /* 16-bit */
 108#define TOPIC_PCI_CFG_PPBCN_WBEN        0x0400
 109
 110static void topic97_zoom_video(struct pcmcia_socket *sock, int onoff)
 111{
 112        struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
 113        u8 reg_zv, reg;
 114
 115        reg_zv = config_readb(socket, TOPIC97_ZOOM_VIDEO_CONTROL);
 116        if (onoff) {
 117                reg_zv |= TOPIC97_ZV_CONTROL_ENABLE;
 118                config_writeb(socket, TOPIC97_ZOOM_VIDEO_CONTROL, reg_zv);
 119
 120                reg = config_readb(socket, TOPIC97_AUDIO_VIDEO_SWITCH);
 121                reg |= TOPIC97_AVS_AUDIO_CONTROL | TOPIC97_AVS_VIDEO_CONTROL;
 122                config_writeb(socket, TOPIC97_AUDIO_VIDEO_SWITCH, reg);
 123        } else {
 124                reg_zv &= ~TOPIC97_ZV_CONTROL_ENABLE;
 125                config_writeb(socket, TOPIC97_ZOOM_VIDEO_CONTROL, reg_zv);
 126
 127                reg = config_readb(socket, TOPIC97_AUDIO_VIDEO_SWITCH);
 128                reg &= ~(TOPIC97_AVS_AUDIO_CONTROL | TOPIC97_AVS_VIDEO_CONTROL);
 129                config_writeb(socket, TOPIC97_AUDIO_VIDEO_SWITCH, reg);
 130        }
 131}
 132
 133static int topic97_override(struct yenta_socket *socket)
 134{
 135        /* ToPIC97/100 support ZV */
 136        socket->socket.zoom_video = topic97_zoom_video;
 137        return 0;
 138}
 139
 140
 141static int topic95_override(struct yenta_socket *socket)
 142{
 143        u8 fctrl;
 144        u16 ppbcn;
 145
 146        /* enable 3.3V support for 16bit cards */
 147        fctrl = exca_readb(socket, TOPIC_EXCA_IF_CONTROL);
 148        exca_writeb(socket, TOPIC_EXCA_IF_CONTROL, fctrl | TOPIC_EXCA_IFC_33V_ENA);
 149
 150        /* tell yenta to use exca registers to power 16bit cards */
 151        socket->flags |= YENTA_16BIT_POWER_EXCA | YENTA_16BIT_POWER_DF;
 152
 153        /* Disable write buffers to prevent lockups under load with numerous
 154           Cardbus cards, observed on Tecra 500CDT and reported elsewhere on the
 155           net.  This is not a power-on default according to the datasheet
 156           but some BIOSes seem to set it. */
 157        if (pci_read_config_word(socket->dev, TOPIC_PCI_CFG_PPBCN, &ppbcn) == 0
 158            && socket->dev->revision <= 7
 159            && (ppbcn & TOPIC_PCI_CFG_PPBCN_WBEN)) {
 160                ppbcn &= ~TOPIC_PCI_CFG_PPBCN_WBEN;
 161                pci_write_config_word(socket->dev, TOPIC_PCI_CFG_PPBCN, ppbcn);
 162                dev_info(&socket->dev->dev, "Disabled ToPIC95 Cardbus write buffers.\n");
 163        }
 164
 165        return 0;
 166}
 167
 168#endif /* _LINUX_TOPIC_H */
 169