2afb189817
Allow boards with GP-MMIO controllers to provide hooks to broadsheetfb in order to offload cmd/data writes and data reads instead of relying only on host based GPIO wiggling. Signed-off-by: Jaya Kumar <jayakumar.lkml@gmail.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
70 lines
2 KiB
C
70 lines
2 KiB
C
/*
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* broadsheetfb.h - definitions for the broadsheet framebuffer driver
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*
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* Copyright (C) 2008 by Jaya Kumar
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive for
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* more details.
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*
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*/
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#ifndef _LINUX_BROADSHEETFB_H_
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#define _LINUX_BROADSHEETFB_H_
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/* Broadsheet command defines */
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#define BS_CMD_INIT_SYS_RUN 0x06
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#define BS_CMD_INIT_DSPE_CFG 0x09
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#define BS_CMD_INIT_DSPE_TMG 0x0A
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#define BS_CMD_INIT_ROTMODE 0x0B
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#define BS_CMD_RD_REG 0x10
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#define BS_CMD_WR_REG 0x11
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#define BS_CMD_LD_IMG 0x20
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#define BS_CMD_LD_IMG_AREA 0x22
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#define BS_CMD_LD_IMG_END 0x23
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#define BS_CMD_WAIT_DSPE_TRG 0x28
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#define BS_CMD_WAIT_DSPE_FREND 0x29
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#define BS_CMD_RD_WFM_INFO 0x30
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#define BS_CMD_UPD_INIT 0x32
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#define BS_CMD_UPD_FULL 0x33
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#define BS_CMD_UPD_GDRV_CLR 0x37
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/* Broadsheet pin interface specific defines */
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#define BS_CS 0x01
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#define BS_DC 0x02
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#define BS_WR 0x03
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/* Broadsheet IO interface specific defines */
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#define BS_MMIO_CMD 0x01
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#define BS_MMIO_DATA 0x02
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/* struct used by broadsheet. board specific stuff comes from *board */
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struct broadsheetfb_par {
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struct fb_info *info;
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struct broadsheet_board *board;
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void (*write_reg)(struct broadsheetfb_par *, u16 reg, u16 val);
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u16 (*read_reg)(struct broadsheetfb_par *, u16 reg);
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wait_queue_head_t waitq;
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int panel_index;
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};
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/* board specific routines */
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struct broadsheet_board {
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struct module *owner;
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int (*init)(struct broadsheetfb_par *);
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int (*wait_for_rdy)(struct broadsheetfb_par *);
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void (*cleanup)(struct broadsheetfb_par *);
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int (*get_panel_type)(void);
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int (*setup_irq)(struct fb_info *);
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/* Functions for boards that use GPIO */
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void (*set_ctl)(struct broadsheetfb_par *, unsigned char, u8);
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void (*set_hdb)(struct broadsheetfb_par *, u16);
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u16 (*get_hdb)(struct broadsheetfb_par *);
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/* Functions for boards that have specialized MMIO */
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void (*mmio_write)(struct broadsheetfb_par *, int type, u16);
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u16 (*mmio_read)(struct broadsheetfb_par *);
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};
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#endif
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