FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/bt462reg.h

     /*      $NetBSD: bt462reg.h,v 1.1 2010/06/24 03:30:36 macallan Exp $ */
     
     /*-
      * Copyright (c) 2010 Michael Lorenz
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     * POSSIBILITY OF SUCH DAMAGE.
     */
    
    /*
     * register definitions for the Bt461/Bt462 RAMDAC
     *
     * There are four registers, how exactly to access them depends on the host so 
     * we don't provide constants for them. All registers are 8 bit wide:
     * - register 0 provides the lower 8 index bits
     * - register 1 provides the upper 2 index bits
     * - register 2 accesses the alternate colour map ( 256 entries ), overlay
     *   colour map ( 32 enttries ) and control registers
     * - register 3 accesses the main colour map ( 1024 entries )
     */
     
    #ifndef BT462REG_H
    #define BT462REG_H
    
    /* offsets for register 2 */
    #define BT462_ALT_CMAP          0x0000
    #define BT462_OVL_CMAP          0x0100
    #define BT462_ID                0x0200
            #define ID_BT461        0x4d
            #define ID_BT462        0x4c
    
    #define BT462_CMD_0             0x0201
            #define BT462_C0_BLINK_16_48    0x00
            #define BT462_C0_BLINK_16_16    0x04
            #define BT462_C0_BLINK_32_32    0x08
            #define BT462_C0_BLINK_64_64    0x0c
            #define BT462_C0_ALT_ENABLE     0x10
            #define BT462_C0_OVL_OPAQUE     0x20    /* use ovl 0, not cmap */
            #define BT462_C0_MULT_3_1       0x00
            #define BT462_C0_MULT_4_1       0x40
            #define BT462_C0_MULT_5_1       0xc0
    
    #define BT462_CMD_1             0x0202
            #define BT462_C1_PAN_0          0x00
            #define BT462_C1_PAN_1          0x20
            #define BT462_C1_PAN_2          0x40
            #define BT462_C1_PAN_3          0x80
            #define BT462_C1_PAN_4          0xa0
    
    #define BT462_CMD_2             0x0203
            #define BT462_C2_TEST_ENABLE    0x01
            #define BT462_C2_UNDERLAY_EN    0x04    /* Bt462 only */
            #define BT462_C2_PLL_USE_BLANK  0x08    /* SYNC otherwise */
            #define BT462_C2_LOAD_ALWAYS    0x00
            #define BT462_C2_LOAD_ON_RED    0x10
            #define BT462_C2_LOAD_ON_GREEN  0x20
            #define BT462_C2_LOAD_ON_BLUE   0x30
            #define BT462_C2_PEDESTAL_EN    0x40
            #define BT462_C2_SYNC_ENABLE    0x80
    
    #define BT462_PIXEL_READ_MSK_L  0x0204
    #define BT462_PIXEL_READ_MSK_H  0x0205
    #define BT462_PIXEL_BLNK_MSK_L  0x0206
    #define BT462_PIXEL_BLNK_MSK_H  0x0207
    #define BT462_OVL_READ_MSK      0x0208
    #define BT462_OVL_BLNK_MSK      0x0209
    #define BT462_TEST              0x020c
    
    #endif /* BT462REG_H */

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