FreeBSD/Linux Kernel Cross Reference
sys/chips/ims332.h

     /* 
      * Mach Operating System
      * Copyright (c) 1991,1990,1989 Carnegie Mellon University
      * All Rights Reserved.
      * 
      * Permission to use, copy, modify and distribute this software and its
      * documentation is hereby granted, provided that both the copyright
      * notice and this permission notice appear in all copies of the
      * software, derivative works or modified versions, and any portions
     * thereof, and that both notices appear in supporting documentation.
     * 
     * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
     * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     * 
     * Carnegie Mellon requests users of this software to return to
     * 
     *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
     *  School of Computer Science
     *  Carnegie Mellon University
     *  Pittsburgh PA 15213-3890
     * 
     * any improvements or extensions that they make and grant Carnegie Mellon
     * the rights to redistribute these changes.
     */
    /*
     * HISTORY
     * $Log:        ims332.h,v $
     * Revision 2.3  92/03/05  11:36:51  rpd
     *      Got real specs ( thanks Jukki!! ):
     *      "IMS G332 colour video controller"
     *      1990 Databook, pp 139-163, Inmos Ltd.
     *      [92/03/03            af]
     * 
     * Revision 2.2  92/03/02  18:32:54  rpd
     *      Created stub to make things compile.
     *      [92/03/02            af]
     * 
     */
    /*
     *      File: ims332.h
     *      Author: Alessandro Forin, Carnegie Mellon University
     *      Date:   1/92
     *
     *      Defines for the Inmos IMS-G332 Colour video controller
     */
    
    
    #ifndef _CHIPS_IMS332_H_
    #define _CHIPS_IMS332_H_        1
    
    /*
     * Although the chip is built to be memory-mapped
     * it can be programmed for 32 or 64 bit addressing.
     * Moreover, the hardware bits have been twisted
     * even more on the machine I am writing this for.
     * So I'll just define the chip's offsets and leave
     * it to the implementation to define the rest.
     */
    
    #define IMS332_REG_BOOT                 0x000   /* boot time config */
    
    #define IMS332_REG_HALF_SYNCH           0x021   /* datapath registers */
    #define IMS332_REG_BACK_PORCH           0x022
    #define IMS332_REG_DISPLAY              0x023
    #define IMS332_REG_SHORT_DIS            0x024
    #define IMS332_REG_BROAD_PULSE          0x025
    #define IMS332_REG_V_SYNC               0x026
    #define IMS332_REG_V_PRE_EQUALIZE       0x027
    #define IMS332_REG_V_POST_EQUALIZE      0x028
    #define IMS332_REG_V_BLANK              0x029
    #define IMS332_REG_V_DISPLAY            0x02a
    #define IMS332_REG_LINE_TIME            0x02b
    #define IMS332_REG_LINE_START           0x02c
    #define IMS332_REG_MEM_INIT             0x02d
    #define IMS332_REG_XFER_DELAY           0x02e
    
    #define IMS332_REG_COLOR_MASK           0x040   /* color mask register */
    
    #define IMS332_REG_CSR_A                0x060
    
    #define IMS332_REG_CSR_B                0x070
    
    #define IMS332_REG_TOP_SCREEN           0x080   /* top-of-screen offset */
    
    #define IMS332_REG_CURSOR_LUT_0         0x0a1   /* cursor palette */
    #define IMS332_REG_CURSOR_LUT_1         0x0a2
    #define IMS332_REG_CURSOR_LUT_2         0x0a3
    
    #define IMS332_REG_RGB_CKSUM_0          0x0c0   /* test registers */
    #define IMS332_REG_RGB_CKSUM_1          0x0c1
    #define IMS332_REG_RGB_CKSUM_2          0x0c2
    
    #define IMS332_REG_CURSOR_LOC           0x0c7   /* cursor location */
    
    #define IMS332_REG_LUT_BASE             0x100   /* color palette */
    #define IMS332_REG_LUT_END              0x1ff
    
    #define IMS332_REG_CURSOR_RAM           0x200   /* cursor bitmap */
   #define IMS332_REG_CURSOR_RAM_END       0x3ff
   
   /*
    * Control register A
    */
   
   #define IMS332_CSR_A_VTG_ENABLE         0x000001        /* vertical timing generator */
   #define IMS332_CSR_A_INTERLACED         0x000002        /* screen format */
   #define IMS332_CSR_A_CCIR               0x000004        /* default is EIA */
   #define IMS332_CSR_A_SLAVE_SYNC         0x000008        /* else from our pll */
   #define IMS332_CSR_A_PLAIN_SYNC         0x000010        /* else tesselated */
   #define IMS332_CSR_A_SEPARATE_SYNC      0x000020        /* else composite */
   #define IMS332_CSR_A_VIDEO_ONLY         0x000040        /* else video+sync */
   #define IMS332_CSR_A_BLANK_PEDESTAL     0x000080        /* blank level */
   #define IMS332_CSR_A_CBLANK_IS_OUT      0x000100
   #define IMS332_CSR_A_CBLANK_NO_DELAY    0x000200
   #define IMS332_CSR_A_FORCE_BLANK        0x000400
   #define IMS332_CSR_A_BLANK_DISABLE      0x000800
   #define IMS332_CSR_A_VRAM_INCREMENT     0x003000
   #       define IMS332_VRAM_INC_1        0x000000
   #       define IMS332_VRAM_INC_256      0x001000        /* except interlaced->2 */
   #       define IMS332_VRAM_INC_512      0x002000
   #       define IMS332_VRAM_INC_1024     0x003000
   #define IMS332_CSR_A_DMA_DISABLE        0x004000
   #define IMS332_CSR_A_SYNC_DELAY_MASK    0x038000        /* 0-7 VTG clk delays */
   #define IMS332_CSR_A_PIXEL_INTERLEAVE   0x040000
   #define IMS332_CSR_A_DELAYED_SAMPLING   0x080000
   #define IMS332_CSR_A_BITS_PER_PIXEL     0x700000
   #       define IMS332_BPP_1             0x000000
   #       define IMS332_BPP_2             0x100000
   #       define IMS332_BPP_4             0x200000
   #       define IMS332_BPP_8             0x300000
   #       define IMS332_BPP_15            0x400000
   #       define IMS332_BPP_16            0x500000
   #define IMS332_CSR_A_DISABLE_CURSOR     0x800000
   
   
   /*
    * Control register B is mbz
    */
   
   /*
    * Boot register
    */
   
   #define IMS332_BOOT_PLL                 0x00001f        /* xPLL, binary */
   #define IMS332_BOOT_CLOCK_PLL           0x000020        /* else xternal */
   #define IMS332_BOOT_64_BIT_MODE         0x000040        /* else 32 */
   #define IMS332_BOOT_xxx                 0xffff80        /* reserved, mbz */
   
   
   #endif  _CHIPS_IMS332_H_

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