release/src-rt-6.x.4708/linux/linux-2.6.36/arch/sh/include/asm/sh7760fb.h

   1 /*
   2  * sh7760fb.h -- platform data for SH7760/SH7763 LCDC framebuffer driver.
   3  *
   4  * (c) 2006-2008 MSC Vertriebsges.m.b.H.,
   5  *                      Manuel Lauss <mano@roarinelk.homelinux.net>
   6  * (c) 2008 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
   7  */
   8
   9 #ifndef _ASM_SH_SH7760FB_H
  10 #define _ASM_SH_SH7760FB_H
  11
  12 /*
  13  * some bits of the colormap registers should be written as zero.
  14  * create a mask for that.
  15  */
  16 #define SH7760FB_PALETTE_MASK 0x00f8fcf8
  17
  18 /* The LCDC dma engine always sets bits 27-26 to 1: this is Area3 */
  19 #define SH7760FB_DMA_MASK 0x0C000000
  20
  21 /* palette */
  22 #define LDPR(x) (((x) << 2))
  23
  24 /* framebuffer registers and bits */
  25 #define LDICKR 0x400
  26 #define LDMTR 0x402
  27 /* see sh7760fb.h for LDMTR bits */
  28 #define LDDFR 0x404
  29 #define LDDFR_PABD (1 << 8)
  30 #define LDDFR_COLOR_MASK 0x7F
  31 #define LDSMR 0x406
  32 #define LDSMR_ROT (1 << 13)
  33 #define LDSARU 0x408
  34 #define LDSARL 0x40c
  35 #define LDLAOR 0x410
  36 #define LDPALCR 0x412
  37 #define LDPALCR_PALS (1 << 4)
  38 #define LDPALCR_PALEN (1 << 0)
  39 #define LDHCNR 0x414
  40 #define LDHSYNR 0x416
  41 #define LDVDLNR 0x418
  42 #define LDVTLNR 0x41a
  43 #define LDVSYNR 0x41c
  44 #define LDACLNR 0x41e
  45 #define LDINTR 0x420
  46 #define LDPMMR 0x424
  47 #define LDPSPR 0x426
  48 #define LDCNTR 0x428
  49 #define LDCNTR_DON (1 << 0)
  50 #define LDCNTR_DON2 (1 << 4)
  51
  52 #ifdef CONFIG_CPU_SUBTYPE_SH7763
  53 # define LDLIRNR       0x440
  54 /* LDINTR bit */
  55 # define LDINTR_MINTEN (1 << 15)
  56 # define LDINTR_FINTEN (1 << 14)
  57 # define LDINTR_VSINTEN (1 << 13)
  58 # define LDINTR_VEINTEN (1 << 12)
  59 # define LDINTR_MINTS (1 << 11)
  60 # define LDINTR_FINTS (1 << 10)
  61 # define LDINTR_VSINTS (1 << 9)
  62 # define LDINTR_VEINTS (1 << 8)
  63 # define VINT_START (LDINTR_VSINTEN)
  64 # define VINT_CHECK (LDINTR_VSINTS)
  65 #else
  66 /* LDINTR bit */
  67 # define LDINTR_VINTSEL (1 << 12)
  68 # define LDINTR_VINTE (1 << 8)
  69 # define LDINTR_VINTS (1 << 0)
  70 # define VINT_START (LDINTR_VINTSEL)
  71 # define VINT_CHECK (LDINTR_VINTS)
  72 #endif
  73
  74 /* HSYNC polarity inversion */
  75 #define LDMTR_FLMPOL (1 << 15)
  76
  77 /* VSYNC polarity inversion */
  78 #define LDMTR_CL1POL (1 << 14)
  79
  80 /* DISPLAY-ENABLE polarity inversion */
  81 #define LDMTR_DISPEN_LOWACT (1 << 13)
  82
  83 /* DISPLAY DATA BUS polarity inversion */
  84 #define LDMTR_DPOL_LOWACT (1 << 12)
  85
  86 /* AC modulation signal enable */
  87 #define LDMTR_MCNT (1 << 10)
  88
  89 /* Disable output of HSYNC during VSYNC period */
  90 #define LDMTR_CL1CNT (1 << 9)
  91
  92 /* Disable output of VSYNC during VSYNC period */
  93 #define LDMTR_CL2CNT (1 << 8)
  94
  95 /* Display types supported by the LCDC */
  96 #define LDMTR_STN_MONO_4       0x00
  97 #define LDMTR_STN_MONO_8       0x01
  98 #define LDMTR_STN_COLOR_4      0x08
  99 #define LDMTR_STN_COLOR_8      0x09
 100 #define LDMTR_STN_COLOR_12     0x0A
 101 #define LDMTR_STN_COLOR_16     0x0B
 102 #define LDMTR_DSTN_MONO_8      0x11
 103 #define LDMTR_DSTN_MONO_16     0x13
 104 #define LDMTR_DSTN_COLOR_8     0x19
 105 #define LDMTR_DSTN_COLOR_12    0x1A
 106 #define LDMTR_DSTN_COLOR_16    0x1B
 107 #define LDMTR_TFT_COLOR_16     0x2B
 108
 109 /* framebuffer color layout */
 110 #define LDDFR_1BPP_MONO 0x00
 111 #define LDDFR_2BPP_MONO 0x01
 112 #define LDDFR_4BPP_MONO 0x02
 113 #define LDDFR_6BPP_MONO 0x04
 114 #define LDDFR_4BPP 0x0A
 115 #define LDDFR_8BPP 0x0C
 116 #define LDDFR_16BPP_RGB555 0x1D
 117 #define LDDFR_16BPP_RGB565 0x2D
 118
 119 /* LCDC Pixclock sources */
 120 #define LCDC_CLKSRC_BUSCLOCK 0
 121 #define LCDC_CLKSRC_PERIPHERAL 1
 122 #define LCDC_CLKSRC_EXTERNAL 2
 123
 124 #define LDICKR_CLKSRC(x) \
 125        (((x) & 3) << 12)
 126
 127 /* LCDC pixclock input divider. Set to 1 at a minimum! */
 128 #define LDICKR_CLKDIV(x) \
 129        ((x) & 0x1f)
 130
 131 struct sh7760fb_platdata {
 132
 133         /* Set this member to a valid fb_videmode for the display you
 134          * wish to use.  The following members must be initialized:
 135          * xres, yres, hsync_len, vsync_len, sync,
 136          * {left,right,upper,lower}_margin.
 137          * The driver uses the above members to calculate register values
 138          * and memory requirements. Other members are ignored but may
 139          * be used by other framebuffer layer components.
 140          */
 141         struct fb_videomode *def_mode;
 142
 143         /* LDMTR includes display type and signal polarity.  The
 144          * HSYNC/VSYNC polarities are derived from the fb_var_screeninfo
 145          * data above; however the polarities of the following signals
 146          * must be encoded in the ldmtr member:
 147          * Display Enable signal (default high-active)  DISPEN_LOWACT
 148          * Display Data signals (default high-active)   DPOL_LOWACT
 149          * AC Modulation signal (default off)           MCNT
 150          * Hsync-During-Vsync suppression (default off) CL1CNT
 151          * Vsync-during-vsync suppression (default off) CL2CNT
 152          * NOTE: also set a display type!
 153          * (one of LDMTR_{STN,DSTN,TFT}_{MONO,COLOR}_{4,8,12,16})
 154          */
 155         u16 ldmtr;
 156
 157         /* LDDFR controls framebuffer image format (depth, organization)
 158          * Use ONE of the LDDFR_?BPP_* macros!
 159          */
 160         u16 lddfr;
 161
 162         /* LDPMMR and LDPSPR control the timing of the power signals
 163          * for the display. Please read the SH7760 Hardware Manual,
 164          * Chapters 30.3.17, 30.3.18 and 30.4.6!
 165          */
 166         u16 ldpmmr;
 167         u16 ldpspr;
 168
 169         /* LDACLNR contains the line numbers after which the AC modulation
 170          * signal is to toggle. Set to ZERO for TFTs or displays which
 171          * do not need it. (Chapter 30.3.15 in SH7760 Hardware Manual).
 172          */
 173         u16 ldaclnr;
 174
 175         /* LDICKR contains information on pixelclock source and config.
 176          * Please use the LDICKR_CLKSRC() and LDICKR_CLKDIV() macros.
 177          * minimal value for CLKDIV() must be 1!.
 178          */
 179         u16 ldickr;
 180
 181         /* set this member to 1 if you wish to use the LCDC's hardware
 182          * rotation function.  This is limited to displays <= 320x200
 183          * pixels resolution!
 184          */
 185         int rotate;             /* set to 1 to rotate 90 CCW */
 186
 187         /* set this to 1 to suppress vsync irq use. */
 188         int novsync;
 189
 190         /* blanking hook for platform. Set this if your platform can do
 191          * more than the LCDC in terms of blanking (e.g. disable clock
 192          * generator / backlight power supply / etc.
 193          */
 194         void (*blank) (int);
 195 };
 196
 197 #endif /* _ASM_SH_SH7760FB_H */