broadsheetfb.h

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/*
 * broadsheetfb.h - definitions for the broadsheet framebuffer driver
 *
 * Copyright (C) 2008 by Jaya Kumar
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License. See the file COPYING in the main directory of this archive for
 * more details.
 *
 */

#ifndef _LINUX_BROADSHEETFB_H_
#define _LINUX_BROADSHEETFB_H_

/* Broadsheet command defines */
#define BS_CMD_INIT_SYS_RUN 0x06
#define BS_CMD_INIT_DSPE_CFG    0x09
#define BS_CMD_INIT_DSPE_TMG    0x0A
#define BS_CMD_INIT_ROTMODE 0x0B
#define BS_CMD_RD_REG       0x10
#define BS_CMD_WR_REG       0x11
#define BS_CMD_LD_IMG       0x20
#define BS_CMD_LD_IMG_AREA  0x22
#define BS_CMD_LD_IMG_END   0x23
#define BS_CMD_WAIT_DSPE_TRG    0x28
#define BS_CMD_WAIT_DSPE_FREND  0x29
#define BS_CMD_RD_WFM_INFO  0x30
#define BS_CMD_UPD_INIT     0x32
#define BS_CMD_UPD_FULL     0x33
#define BS_CMD_UPD_GDRV_CLR 0x37

/* Broadsheet register interface defines */
#define BS_REG_REV      0x00
#define BS_REG_PRC      0x02

/* Broadsheet pin interface specific defines */
#define BS_CS   0x01
#define BS_DC   0x02
#define BS_WR   0x03

/* Broadsheet IO interface specific defines */
#define BS_MMIO_CMD 0x01
#define BS_MMIO_DATA    0x02

/* struct used by broadsheet. board specific stuff comes from *board */
struct broadsheetfb_par {
    struct fb_info *info;
    struct broadsheet_board *board;
    void (*write_reg)(struct broadsheetfb_par *, u16 reg, u16 val);
    u16 (*read_reg)(struct broadsheetfb_par *, u16 reg);
    wait_queue_head_t waitq;
    int panel_index;
    struct mutex io_lock;
};

/* board specific routines */
struct broadsheet_board {
    struct module *owner;
    int (*init)(struct broadsheetfb_par *);
    int (*wait_for_rdy)(struct broadsheetfb_par *);
    void (*cleanup)(struct broadsheetfb_par *);
    int (*get_panel_type)(void);
    int (*setup_irq)(struct fb_info *);

    /* Functions for boards that use GPIO */
    void (*set_ctl)(struct broadsheetfb_par *, unsigned char, u8);
    void (*set_hdb)(struct broadsheetfb_par *, u16);
    u16 (*get_hdb)(struct broadsheetfb_par *);

    /* Functions for boards that have specialized MMIO */
    void (*mmio_write)(struct broadsheetfb_par *, int type, u16);
    u16 (*mmio_read)(struct broadsheetfb_par *);
};
#endif