root/drivers/pcmcia/topic.h

INCLUDED FROM

DEFINITIONS

1. topic97_zoom_video
2. topic97_override
3. topic95_override

   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 
 110 static 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 
 133 static 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 
 141 static 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 */