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#define ATMEL_LCDC_WIRING_RGB555        2
  34
  35
  36 /* LCD Controller info data structure, stored in device platform_data */
  37struct atmel_lcdfb_info {
  38        spinlock_t              lock;
  39        struct fb_info          *info;
  40        void __iomem            *mmio;
  41        int                     irq_base;
  42        struct work_struct      task;
  43
  44        unsigned int            guard_time;
  45        unsigned int            smem_len;
  46        struct platform_device  *pdev;
  47        struct clk              *bus_clk;
  48        struct clk              *lcdc_clk;
  49
  50#ifdef CONFIG_BACKLIGHT_ATMEL_LCDC
  51        struct backlight_device *backlight;
  52        u8                      bl_power;
  53#endif
  54        bool                    lcdcon_is_backlight;
  55        bool                    lcdcon_pol_negative;
  56        u8                      saved_lcdcon;
  57
  58        u8                      default_bpp;
  59        u8                      lcd_wiring_mode;
  60        unsigned int            default_lcdcon2;
  61        unsigned int            default_dmacon;
  62        void (*atmel_lcdfb_power_control)(int on);
  63        struct fb_monspecs      *default_monspecs;
  64        u32                     pseudo_palette[16];
  65};
  66
  67#define ATMEL_LCDC_DMABADDR1    0x00
  68#define ATMEL_LCDC_DMABADDR2    0x04
  69#define ATMEL_LCDC_DMAFRMPT1    0x08
  70#define ATMEL_LCDC_DMAFRMPT2    0x0c
  71#define ATMEL_LCDC_DMAFRMADD1   0x10
  72#define ATMEL_LCDC_DMAFRMADD2   0x14
  73
  74#define ATMEL_LCDC_DMAFRMCFG    0x18
  75#define ATMEL_LCDC_FRSIZE       (0x7fffff <<  0)
  76#define ATMEL_LCDC_BLENGTH_OFFSET       24
  77#define ATMEL_LCDC_BLENGTH      (0x7f     << ATMEL_LCDC_BLENGTH_OFFSET)
  78
  79#define ATMEL_LCDC_DMACON       0x1c
  80#define ATMEL_LCDC_DMAEN        (0x1 << 0)
  81#define ATMEL_LCDC_DMARST       (0x1 << 1)
  82#define ATMEL_LCDC_DMABUSY      (0x1 << 2)
  83#define         ATMEL_LCDC_DMAUPDT      (0x1 << 3)
  84#define         ATMEL_LCDC_DMA2DEN      (0x1 << 4)
  85
  86#define ATMEL_LCDC_DMA2DCFG     0x20
  87#define         ATMEL_LCDC_ADDRINC_OFFSET       0
  88#define         ATMEL_LCDC_ADDRINC              (0xffff)
  89#define         ATMEL_LCDC_PIXELOFF_OFFSET      24
  90#define         ATMEL_LCDC_PIXELOFF             (0x1f << 24)
  91
  92#define ATMEL_LCDC_LCDCON1      0x0800
  93#define ATMEL_LCDC_BYPASS       (1     <<  0)
  94#define ATMEL_LCDC_CLKVAL_OFFSET        12
  95#define ATMEL_LCDC_CLKVAL       (0x1ff << ATMEL_LCDC_CLKVAL_OFFSET)
  96#define ATMEL_LCDC_LINCNT       (0x7ff << 21)
  97
  98#define ATMEL_LCDC_LCDCON2      0x0804
  99#define ATMEL_LCDC_DISTYPE      (3 << 0)
 100#define         ATMEL_LCDC_DISTYPE_STNMONO      (0 << 0)
 101#define         ATMEL_LCDC_DISTYPE_STNCOLOR     (1 << 0)
 102#define         ATMEL_LCDC_DISTYPE_TFT          (2 << 0)
 103#define ATMEL_LCDC_SCANMOD      (1 << 2)
 104#define         ATMEL_LCDC_SCANMOD_SINGLE       (0 << 2)
 105#define         ATMEL_LCDC_SCANMOD_DUAL         (1 << 2)
 106#define ATMEL_LCDC_IFWIDTH      (3 << 3)
 107#define         ATMEL_LCDC_IFWIDTH_4            (0 << 3)
 108#define         ATMEL_LCDC_IFWIDTH_8            (1 << 3)
 109#define         ATMEL_LCDC_IFWIDTH_16           (2 << 3)
 110#define ATMEL_LCDC_PIXELSIZE    (7 << 5)
 111#define         ATMEL_LCDC_PIXELSIZE_1          (0 << 5)
 112#define         ATMEL_LCDC_PIXELSIZE_2          (1 << 5)
 113#define         ATMEL_LCDC_PIXELSIZE_4          (2 << 5)
 114#define         ATMEL_LCDC_PIXELSIZE_8          (3 << 5)
 115#define         ATMEL_LCDC_PIXELSIZE_16         (4 << 5)
 116#define         ATMEL_LCDC_PIXELSIZE_24         (5 << 5)
 117#define         ATMEL_LCDC_PIXELSIZE_32         (6 << 5)
 118#define ATMEL_LCDC_INVVD        (1 << 8)
 119#define         ATMEL_LCDC_INVVD_NORMAL         (0 << 8)
 120#define         ATMEL_LCDC_INVVD_INVERTED       (1 << 8)
 121#define ATMEL_LCDC_INVFRAME     (1 << 9 )
 122#define         ATMEL_LCDC_INVFRAME_NORMAL      (0 << 9)
 123#define         ATMEL_LCDC_INVFRAME_INVERTED    (1 << 9)
 124#define ATMEL_LCDC_INVLINE      (1 << 10)
 125#define         ATMEL_LCDC_INVLINE_NORMAL       (0 << 10)
 126#define         ATMEL_LCDC_INVLINE_INVERTED     (1 << 10)
 127#define ATMEL_LCDC_INVCLK       (1 << 11)
 128#define         ATMEL_LCDC_INVCLK_NORMAL        (0 << 11)
 129#define         ATMEL_LCDC_INVCLK_INVERTED      (1 << 11)
 130#define ATMEL_LCDC_INVDVAL      (1 << 12)
 131#define         ATMEL_LCDC_INVDVAL_NORMAL       (0 << 12)
 132#define         ATMEL_LCDC_INVDVAL_INVERTED     (1 << 12)
 133#define ATMEL_LCDC_CLKMOD       (1 << 15)
 134#define         ATMEL_LCDC_CLKMOD_ACTIVEDISPLAY (0 << 15)
 135#define         ATMEL_LCDC_CLKMOD_ALWAYSACTIVE  (1 << 15)
 136#define ATMEL_LCDC_MEMOR        (1 << 31)
 137#define         ATMEL_LCDC_MEMOR_BIG            (0 << 31)
 138#define         ATMEL_LCDC_MEMOR_LITTLE         (1 << 31)
 139
 140#define ATMEL_LCDC_TIM1         0x0808
 141#define ATMEL_LCDC_VFP          (0xffU <<  0)
 142#define ATMEL_LCDC_VBP_OFFSET           8
 143#define ATMEL_LCDC_VBP          (0xffU <<  ATMEL_LCDC_VBP_OFFSET)
 144#define ATMEL_LCDC_VPW_OFFSET           16
 145#define ATMEL_LCDC_VPW          (0x3fU << ATMEL_LCDC_VPW_OFFSET)
 146#define ATMEL_LCDC_VHDLY_OFFSET         24
 147#define ATMEL_LCDC_VHDLY        (0xfU  << ATMEL_LCDC_VHDLY_OFFSET)
 148
 149#define ATMEL_LCDC_TIM2         0x080c
 150#define ATMEL_LCDC_HBP          (0xffU  <<  0)
 151#define ATMEL_LCDC_HPW_OFFSET           8
 152#define ATMEL_LCDC_HPW          (0x3fU  <<  ATMEL_LCDC_HPW_OFFSET)
 153#define ATMEL_LCDC_HFP_OFFSET           21
 154#define ATMEL_LCDC_HFP          (0x7ffU << ATMEL_LCDC_HFP_OFFSET)
 155
 156#define ATMEL_LCDC_LCDFRMCFG    0x0810
 157#define ATMEL_LCDC_LINEVAL      (0x7ff <<  0)
 158#define ATMEL_LCDC_HOZVAL_OFFSET        21
 159#define ATMEL_LCDC_HOZVAL       (0x7ff << ATMEL_LCDC_HOZVAL_OFFSET)
 160
 161#define ATMEL_LCDC_FIFO         0x0814
 162#define ATMEL_LCDC_FIFOTH       (0xffff)
 163
 164#define ATMEL_LCDC_MVAL         0x0818
 165
 166#define ATMEL_LCDC_DP1_2        0x081c
 167#define ATMEL_LCDC_DP4_7        0x0820
 168#define ATMEL_LCDC_DP3_5        0x0824
 169#define ATMEL_LCDC_DP2_3        0x0828
 170#define ATMEL_LCDC_DP5_7        0x082c
 171#define ATMEL_LCDC_DP3_4        0x0830
 172#define ATMEL_LCDC_DP4_5        0x0834
 173#define ATMEL_LCDC_DP6_7        0x0838
 174#define ATMEL_LCDC_DP1_2_VAL    (0xff)
 175#define ATMEL_LCDC_DP4_7_VAL    (0xfffffff)
 176#define ATMEL_LCDC_DP3_5_VAL    (0xfffff)
 177#define ATMEL_LCDC_DP2_3_VAL    (0xfff)
 178#define ATMEL_LCDC_DP5_7_VAL    (0xfffffff)
 179#define ATMEL_LCDC_DP3_4_VAL    (0xffff)
 180#define ATMEL_LCDC_DP4_5_VAL    (0xfffff)
 181#define ATMEL_LCDC_DP6_7_VAL    (0xfffffff)
 182
 183#define ATMEL_LCDC_PWRCON       0x083c
 184#define ATMEL_LCDC_PWR          (1    <<  0)
 185#define ATMEL_LCDC_GUARDT_OFFSET        1
 186#define ATMEL_LCDC_GUARDT       (0x7f <<  ATMEL_LCDC_GUARDT_OFFSET)
 187#define ATMEL_LCDC_BUSY         (1    << 31)
 188
 189#define ATMEL_LCDC_CONTRAST_CTR 0x0840
 190#define ATMEL_LCDC_PS           (3 << 0)
 191#define         ATMEL_LCDC_PS_DIV1              (0 << 0)
 192#define         ATMEL_LCDC_PS_DIV2              (1 << 0)
 193#define         ATMEL_LCDC_PS_DIV4              (2 << 0)
 194#define         ATMEL_LCDC_PS_DIV8              (3 << 0)
 195#define ATMEL_LCDC_POL          (1 << 2)
 196#define         ATMEL_LCDC_POL_NEGATIVE         (0 << 2)
 197#define         ATMEL_LCDC_POL_POSITIVE         (1 << 2)
 198#define ATMEL_LCDC_ENA          (1 << 3)
 199#define         ATMEL_LCDC_ENA_PWMDISABLE       (0 << 3)
 200#define         ATMEL_LCDC_ENA_PWMENABLE        (1 << 3)
 201
 202#define ATMEL_LCDC_CONTRAST_VAL 0x0844
 203#define ATMEL_LCDC_CVAL (0xff)
 204
 205#define ATMEL_LCDC_IER          0x0848
 206#define ATMEL_LCDC_IDR          0x084c
 207#define ATMEL_LCDC_IMR          0x0850
 208#define ATMEL_LCDC_ISR          0x0854
 209#define ATMEL_LCDC_ICR          0x0858
 210#define ATMEL_LCDC_LNI          (1 << 0)
 211#define ATMEL_LCDC_LSTLNI       (1 << 1)
 212#define ATMEL_LCDC_EOFI         (1 << 2)
 213#define ATMEL_LCDC_UFLWI        (1 << 4)
 214#define ATMEL_LCDC_OWRI         (1 << 5)
 215#define ATMEL_LCDC_MERI         (1 << 6)
 216
 217#define ATMEL_LCDC_LUT(n)       (0x0c00 + ((n)*4))
 218
 219#endif /* __ATMEL_LCDC_H__ */
 220
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