linux/include/video/atmel_lcdc.h
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   1/*
   2 *  Header file for AT91/AT32 LCD Controller
   3 *
   4 *  Data structure and register user interface
   5 *
   6 *  Copyright (C) 2007 Atmel Corporation
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of the GNU General Public License as published by
  10 * the Free Software Foundation; either version 2 of the License, or
  11 * (at your option) any later version.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 * GNU General Public License for more details.
  17 *
  18 * You should have received a copy of the GNU General Public License
  19 * along with this program; if not, write to the Free Software
  20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21 */
  22#ifndef __ATMEL_LCDC_H__
  23#define __ATMEL_LCDC_H__
  24
  25#include <linux/workqueue.h>
  26
  27/* Way LCD wires are connected to the chip:
  28 * Some Atmel chips use BGR color mode (instead of standard RGB)
  29 * A swapped wiring onboard can bring to RGB mode.
  30 */
  31#define ATMEL_LCDC_WIRING_BGR   0
  32#define ATMEL_LCDC_WIRING_RGB   1
  33
  34
  35 /* LCD Controller info data structure, stored in device platform_data */
  36struct atmel_lcdfb_pdata {
  37        unsigned int            guard_time;
  38        bool                    lcdcon_is_backlight;
  39        bool                    lcdcon_pol_negative;
  40        u8                      default_bpp;
  41        u8                      lcd_wiring_mode;
  42        unsigned int            default_lcdcon2;
  43        unsigned int            default_dmacon;
  44        void (*atmel_lcdfb_power_control)(struct atmel_lcdfb_pdata *pdata, int on);
  45        struct fb_monspecs      *default_monspecs;
  46
  47        struct list_head        pwr_gpios;
  48};
  49
  50#define ATMEL_LCDC_DMABADDR1    0x00
  51#define ATMEL_LCDC_DMABADDR2    0x04
  52#define ATMEL_LCDC_DMAFRMPT1    0x08
  53#define ATMEL_LCDC_DMAFRMPT2    0x0c
  54#define ATMEL_LCDC_DMAFRMADD1   0x10
  55#define ATMEL_LCDC_DMAFRMADD2   0x14
  56
  57#define ATMEL_LCDC_DMAFRMCFG    0x18
  58#define ATMEL_LCDC_FRSIZE       (0x7fffff <<  0)
  59#define ATMEL_LCDC_BLENGTH_OFFSET       24
  60#define ATMEL_LCDC_BLENGTH      (0x7f     << ATMEL_LCDC_BLENGTH_OFFSET)
  61
  62#define ATMEL_LCDC_DMACON       0x1c
  63#define ATMEL_LCDC_DMAEN        (0x1 << 0)
  64#define ATMEL_LCDC_DMARST       (0x1 << 1)
  65#define ATMEL_LCDC_DMABUSY      (0x1 << 2)
  66#define         ATMEL_LCDC_DMAUPDT      (0x1 << 3)
  67#define         ATMEL_LCDC_DMA2DEN      (0x1 << 4)
  68
  69#define ATMEL_LCDC_DMA2DCFG     0x20
  70#define         ATMEL_LCDC_ADDRINC_OFFSET       0
  71#define         ATMEL_LCDC_ADDRINC              (0xffff)
  72#define         ATMEL_LCDC_PIXELOFF_OFFSET      24
  73#define         ATMEL_LCDC_PIXELOFF             (0x1f << 24)
  74
  75#define ATMEL_LCDC_LCDCON1      0x0800
  76#define ATMEL_LCDC_BYPASS       (1     <<  0)
  77#define ATMEL_LCDC_CLKVAL_OFFSET        12
  78#define ATMEL_LCDC_CLKVAL       (0x1ff << ATMEL_LCDC_CLKVAL_OFFSET)
  79#define ATMEL_LCDC_LINCNT       (0x7ff << 21)
  80
  81#define ATMEL_LCDC_LCDCON2      0x0804
  82#define ATMEL_LCDC_DISTYPE      (3 << 0)
  83#define         ATMEL_LCDC_DISTYPE_STNMONO      (0 << 0)
  84#define         ATMEL_LCDC_DISTYPE_STNCOLOR     (1 << 0)
  85#define         ATMEL_LCDC_DISTYPE_TFT          (2 << 0)
  86#define ATMEL_LCDC_SCANMOD      (1 << 2)
  87#define         ATMEL_LCDC_SCANMOD_SINGLE       (0 << 2)
  88#define         ATMEL_LCDC_SCANMOD_DUAL         (1 << 2)
  89#define ATMEL_LCDC_IFWIDTH      (3 << 3)
  90#define         ATMEL_LCDC_IFWIDTH_4            (0 << 3)
  91#define         ATMEL_LCDC_IFWIDTH_8            (1 << 3)
  92#define         ATMEL_LCDC_IFWIDTH_16           (2 << 3)
  93#define ATMEL_LCDC_PIXELSIZE    (7 << 5)
  94#define         ATMEL_LCDC_PIXELSIZE_1          (0 << 5)
  95#define         ATMEL_LCDC_PIXELSIZE_2          (1 << 5)
  96#define         ATMEL_LCDC_PIXELSIZE_4          (2 << 5)
  97#define         ATMEL_LCDC_PIXELSIZE_8          (3 << 5)
  98#define         ATMEL_LCDC_PIXELSIZE_16         (4 << 5)
  99#define         ATMEL_LCDC_PIXELSIZE_24         (5 << 5)
 100#define         ATMEL_LCDC_PIXELSIZE_32         (6 << 5)
 101#define ATMEL_LCDC_INVVD        (1 << 8)
 102#define         ATMEL_LCDC_INVVD_NORMAL         (0 << 8)
 103#define         ATMEL_LCDC_INVVD_INVERTED       (1 << 8)
 104#define ATMEL_LCDC_INVFRAME     (1 << 9 )
 105#define         ATMEL_LCDC_INVFRAME_NORMAL      (0 << 9)
 106#define         ATMEL_LCDC_INVFRAME_INVERTED    (1 << 9)
 107#define ATMEL_LCDC_INVLINE      (1 << 10)
 108#define         ATMEL_LCDC_INVLINE_NORMAL       (0 << 10)
 109#define         ATMEL_LCDC_INVLINE_INVERTED     (1 << 10)
 110#define ATMEL_LCDC_INVCLK       (1 << 11)
 111#define         ATMEL_LCDC_INVCLK_NORMAL        (0 << 11)
 112#define         ATMEL_LCDC_INVCLK_INVERTED      (1 << 11)
 113#define ATMEL_LCDC_INVDVAL      (1 << 12)
 114#define         ATMEL_LCDC_INVDVAL_NORMAL       (0 << 12)
 115#define         ATMEL_LCDC_INVDVAL_INVERTED     (1 << 12)
 116#define ATMEL_LCDC_CLKMOD       (1 << 15)
 117#define         ATMEL_LCDC_CLKMOD_ACTIVEDISPLAY (0 << 15)
 118#define         ATMEL_LCDC_CLKMOD_ALWAYSACTIVE  (1 << 15)
 119#define ATMEL_LCDC_MEMOR        (1 << 31)
 120#define         ATMEL_LCDC_MEMOR_BIG            (0 << 31)
 121#define         ATMEL_LCDC_MEMOR_LITTLE         (1 << 31)
 122
 123#define ATMEL_LCDC_TIM1         0x0808
 124#define ATMEL_LCDC_VFP          (0xffU <<  0)
 125#define ATMEL_LCDC_VBP_OFFSET           8
 126#define ATMEL_LCDC_VBP          (0xffU <<  ATMEL_LCDC_VBP_OFFSET)
 127#define ATMEL_LCDC_VPW_OFFSET           16
 128#define ATMEL_LCDC_VPW          (0x3fU << ATMEL_LCDC_VPW_OFFSET)
 129#define ATMEL_LCDC_VHDLY_OFFSET         24
 130#define ATMEL_LCDC_VHDLY        (0xfU  << ATMEL_LCDC_VHDLY_OFFSET)
 131
 132#define ATMEL_LCDC_TIM2         0x080c
 133#define ATMEL_LCDC_HBP          (0xffU  <<  0)
 134#define ATMEL_LCDC_HPW_OFFSET           8
 135#define ATMEL_LCDC_HPW          (0x3fU  <<  ATMEL_LCDC_HPW_OFFSET)
 136#define ATMEL_LCDC_HFP_OFFSET           21
 137#define ATMEL_LCDC_HFP          (0x7ffU << ATMEL_LCDC_HFP_OFFSET)
 138
 139#define ATMEL_LCDC_LCDFRMCFG    0x0810
 140#define ATMEL_LCDC_LINEVAL      (0x7ff <<  0)
 141#define ATMEL_LCDC_HOZVAL_OFFSET        21
 142#define ATMEL_LCDC_HOZVAL       (0x7ff << ATMEL_LCDC_HOZVAL_OFFSET)
 143
 144#define ATMEL_LCDC_FIFO         0x0814
 145#define ATMEL_LCDC_FIFOTH       (0xffff)
 146
 147#define ATMEL_LCDC_MVAL         0x0818
 148
 149#define ATMEL_LCDC_DP1_2        0x081c
 150#define ATMEL_LCDC_DP4_7        0x0820
 151#define ATMEL_LCDC_DP3_5        0x0824
 152#define ATMEL_LCDC_DP2_3        0x0828
 153#define ATMEL_LCDC_DP5_7        0x082c
 154#define ATMEL_LCDC_DP3_4        0x0830
 155#define ATMEL_LCDC_DP4_5        0x0834
 156#define ATMEL_LCDC_DP6_7        0x0838
 157#define ATMEL_LCDC_DP1_2_VAL    (0xff)
 158#define ATMEL_LCDC_DP4_7_VAL    (0xfffffff)
 159#define ATMEL_LCDC_DP3_5_VAL    (0xfffff)
 160#define ATMEL_LCDC_DP2_3_VAL    (0xfff)
 161#define ATMEL_LCDC_DP5_7_VAL    (0xfffffff)
 162#define ATMEL_LCDC_DP3_4_VAL    (0xffff)
 163#define ATMEL_LCDC_DP4_5_VAL    (0xfffff)
 164#define ATMEL_LCDC_DP6_7_VAL    (0xfffffff)
 165
 166#define ATMEL_LCDC_PWRCON       0x083c
 167#define ATMEL_LCDC_PWR          (1    <<  0)
 168#define ATMEL_LCDC_GUARDT_OFFSET        1
 169#define ATMEL_LCDC_GUARDT       (0x7f <<  ATMEL_LCDC_GUARDT_OFFSET)
 170#define ATMEL_LCDC_BUSY         (1    << 31)
 171
 172#define ATMEL_LCDC_CONTRAST_CTR 0x0840
 173#define ATMEL_LCDC_PS           (3 << 0)
 174#define         ATMEL_LCDC_PS_DIV1              (0 << 0)
 175#define         ATMEL_LCDC_PS_DIV2              (1 << 0)
 176#define         ATMEL_LCDC_PS_DIV4              (2 << 0)
 177#define         ATMEL_LCDC_PS_DIV8              (3 << 0)
 178#define ATMEL_LCDC_POL          (1 << 2)
 179#define         ATMEL_LCDC_POL_NEGATIVE         (0 << 2)
 180#define         ATMEL_LCDC_POL_POSITIVE         (1 << 2)
 181#define ATMEL_LCDC_ENA          (1 << 3)
 182#define         ATMEL_LCDC_ENA_PWMDISABLE       (0 << 3)
 183#define         ATMEL_LCDC_ENA_PWMENABLE        (1 << 3)
 184
 185#define ATMEL_LCDC_CONTRAST_VAL 0x0844
 186#define ATMEL_LCDC_CVAL (0xff)
 187
 188#define ATMEL_LCDC_IER          0x0848
 189#define ATMEL_LCDC_IDR          0x084c
 190#define ATMEL_LCDC_IMR          0x0850
 191#define ATMEL_LCDC_ISR          0x0854
 192#define ATMEL_LCDC_ICR          0x0858
 193#define ATMEL_LCDC_LNI          (1 << 0)
 194#define ATMEL_LCDC_LSTLNI       (1 << 1)
 195#define ATMEL_LCDC_EOFI         (1 << 2)
 196#define ATMEL_LCDC_UFLWI        (1 << 4)
 197#define ATMEL_LCDC_OWRI         (1 << 5)
 198#define ATMEL_LCDC_MERI         (1 << 6)
 199
 200#define ATMEL_LCDC_LUT(n)       (0x0c00 + ((n)*4))
 201
 202#endif /* __ATMEL_LCDC_H__ */
 203