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Annotation of qemu/roms/openbios/utils/devbios/flashchips.h, revision 1.1

1.1     ! root        1: /*
        !             2:  *                     OpenBIOS - free your system! 
        !             3:  *              ( firmware/flash device driver for Linux )
        !             4:  *                          
        !             5:  *  flashchips.h - flash device structures.
        !             6:  *  
        !             7:  *  This program is part of a free implementation of the IEEE 1275-1994 
        !             8:  *  Standard for Boot (Initialization Configuration) Firmware.
        !             9:  *
        !            10:  *  Copyright (C) 1998-2004  Stefan Reinauer, <[email protected]>
        !            11:  *
        !            12:  *  This program is free software; you can redistribute it and/or modify
        !            13:  *  it under the terms of the GNU General Public License as published by
        !            14:  *  the Free Software Foundation; version 2 of the License.
        !            15:  *
        !            16:  *  This program is distributed in the hope that it will be useful,
        !            17:  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            18:  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            19:  *  GNU General Public License for more details.
        !            20:  *
        !            21:  *  You should have received a copy of the GNU General Public License
        !            22:  *  along with this program; if not, write to the Free Software
        !            23:  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
        !            24:  *
        !            25:  */
        !            26: 
        !            27: /*
        !            28:  *   flags structure
        !            29:  *   bit 0 = needs erase before write (f_needs_erase)
        !            30:  *   bit 1-3 flash manu type
        !            31:  *   bit 4-6 probably needed for more manu
        !            32:  *   bit 7 = sector erase happens one sector at a time
        !            33:  *           (f_slow_sector_erase)
        !            34:  */
        !            35: 
        !            36: #define f_needs_erase   0x01
        !            37: 
        !            38: /* 3 bit for flashtype */
        !            39: #define f_manuf_compl   0x0e /* Mask out bits 1-3 */
        !            40: #define f_intel_compl   0x02 /* 001 */
        !            41: #define f_atmel_compl   0x04 /* 010 */
        !            42: #define f_fwh_compl     0x08 /* 100 */
        !            43: 
        !            44: #define f_slow_sector_erase 0x80
        !            45: 
        !            46: #define FLASH_UNKNOWN  0
        !            47: #define FLASH_CFI      1
        !            48: #define FLASH_JEDEC    2
        !            49: 
        !            50: typedef struct flashdevice {
        !            51:        unsigned long   mapped;
        !            52:        unsigned long   physical;
        !            53:        unsigned long   offset;
        !            54:        unsigned int    flashnum, manufnum;
        !            55:        unsigned short  id;
        !            56:        unsigned int    size, sectors;
        !            57:        unsigned int    idx;
        !            58:        void            *data;
        !            59:        int             open_mode, open_cnt;
        !            60: } flashdevice_t;
        !            61: 
        !            62: typedef struct flashchip {
        !            63:        char            *name;
        !            64:        unsigned short  id;
        !            65:        unsigned int    voltage;
        !            66:        unsigned int    size;           /* KBytes */
        !            67:        unsigned int    supported;
        !            68:        unsigned int    pagesize;       /* Bytes */
        !            69:        unsigned int    flags;
        !            70:        unsigned int    *sectors;       /* Kbytes[] including end of last sector */
        !            71: } flashchip_t;
        !            72: 
        !            73: typedef struct manufacturer {
        !            74:        char            *name;
        !            75:        unsigned short  id;
        !            76: } manufacturer_t;
        !            77: 
        !            78: extern unsigned int currflash;
        !            79: extern flashdevice_t  flashdevices[BIOS_MAXDEV];
        !            80: extern const flashchip_t flashchips[];
        !            81: extern const manufacturer_t manufacturers[];

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