sys/arch/arm/s3c2xx0/s3c24x0_lcd.h

   1 /* $NetBSD: s3c24x0_lcd.h,v 1.3 2006/04/15 17:00:11 jmmv Exp $ */
   2
   3 /*
   4  * Copyright (c) 2004  Genetec Corporation.  All rights reserved.
   5  * Written by Hiroyuki Bessho for Genetec Corporation.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. The name of Genetec Corporation may not be used to endorse or
  16  *    promote products derived from this software without specific prior
  17  *    written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL GENETEC CORPORATION
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32
  33 #ifndef _ARM_S3C2XX0_S3C24X0_LCD_H
  34 #define _ARM_S3C2XX0_S3C24X0_LCD_H
  35
  36 #include <dev/rasops/rasops.h>
  37 #include <machine/bus.h>
  38
  39 /* LCD Contoroller */
  40
  41 struct s3c24x0_lcd_screen {
  42         LIST_ENTRY(s3c24x0_lcd_screen) link;
  43
  44         /* Frame buffer */
  45         bus_dmamap_t dma;
  46         bus_dma_segment_t segs[1];
  47         int     nsegs;
  48         size_t  buf_size;
  49         size_t  map_size;
  50         void    *buf_va;
  51         int     depth;
  52         int     stride;
  53
  54         /* rasterop */
  55         struct rasops_info rinfo;
  56 };
  57
  58 struct s3c24x0_lcd_softc {
  59         struct device  dev;
  60
  61         /* control registers */
  62         bus_space_tag_t         iot;
  63         bus_space_handle_t      ioh;
  64         bus_dma_tag_t           dma_tag;
  65
  66         const struct s3c24x0_lcd_panel_info *panel_info;
  67
  68         LIST_HEAD(, s3c24x0_lcd_screen) screens;
  69         struct s3c24x0_lcd_screen *active;
  70         void *ih;                       /* interrupt handler */
  71
  72         int n_screens;
  73         int lcd_on;                     /* LCD is turned on */
  74 };
  75
  76 void s3c24x0_lcd_attach_sub(struct s3c24x0_lcd_softc *,
  77     struct s3c2xx0_attach_args *, const struct s3c24x0_lcd_panel_info *);
  78 int s3c24x0_lcd_start_dma(struct s3c24x0_lcd_softc *,
  79     struct s3c24x0_lcd_screen *);
  80
  81 struct s3c24x0_lcd_panel_info {
  82         short panel_width;
  83         short panel_height;
  84         int   pixel_clock;              /* in Hz */
  85
  86         /* Initial values to go to LCD controll registers */
  87         uint32_t lcdcon1;
  88         uint32_t lcdcon2;
  89         uint32_t lcdcon3;
  90         uint32_t lcdcon4;
  91         uint32_t lcdcon5;
  92         uint32_t lpcsel;
  93
  94 #define s3c24x0_lcd_panel_tft(info)     \
  95         (((info)->lcdcon1 & LCDCON1_PNRMODE_MASK) == LCDCON1_PNRMODE_TFT)
  96 };
  97
  98 void s3c24x0_set_lcd_panel_info(struct s3c24x0_lcd_softc *,
  99     const struct s3c24x0_lcd_panel_info *);
 100
 101 struct s3c24x0_lcd_screen *s3c24x0_lcd_new_screen(struct s3c24x0_lcd_softc *,
 102     int, int, int);
 103
 104 /*
 105  * we need bits-per-pixel value to configure wsdisplay screen
 106  */
 107 struct s3c24x0_wsscreen_descr {
 108         struct wsscreen_descr  c;       /* standard descriptor */
 109         int depth;                      /* bits per pixel */
 110 };
 111
 112 int s3c24x0_lcd_show_screen(void *, void *, int, void (*)(void *, int, int),
 113     void *);
 114 int s3c24x0_lcd_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
 115     struct lwp *p);
 116 paddr_t s3c24x0_lcd_mmap(void *, void *, off_t, int);
 117 int s3c24x0_lcd_alloc_screen(void *, const struct wsscreen_descr *, void **,
 118     int *, int *, long *);
 119 void s3c24x0_lcd_free_screen(void *, void *);
 120 void s3c24x0_lcd_power(struct s3c24x0_lcd_softc *, int);
 121
 122 extern const struct wsdisplay_emulops s3c24x0_lcd_emulops;
 123
 124 #endif /* _ARM_S3C2XX0_S3C24X0_LCD_H */