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198fc108ee
PXA27x and later processors support overlay1 and overlay2 on-top of the
base framebuffer (although under-neath the base is also possible). They
support palette and no-palette RGB formats, as well as YUV formats (only
available on overlay2). These overlays have dedicated DMA channels and
behave in a similar way as a framebuffer.
This heavily simplified and re-structured work is based on the original
pxafb_overlay.c (which is pending for mainline merge for a long time).
The major problems with this pxafb_overlay.c are (if you are interested
in the history):
1. heavily redundant (the control logics for overlay1 and overlay2 are
actually identical except for some small operations, which are now
abstracted into a 'pxafb_layer_ops' structure)
2. a lot of useless and un-tested code (two workarounds which are now
fixed on mature silicons)
3. cursorfb is actually useless, hardware cursor should not be used
this way, and the code was actually un-tested for a long time.
The code in this patch should be self-explanatory, I tried to add minimum
comments. As said, this is basically simplified, there are several things
still on the pending list:
1. palette mode is un-supported and un-tested (although re-using the
palette code of the base framebuffer is actually very easy now with
previous clean-up patches)
2. fb_pan_display for overlay(s) is un-supported
3. the base framebuffer can actually be abstracted by 'pxafb_layer' as
well, which will help further re-use of the code and keep a better
and consistent structure. (This is the reason I named it 'pxafb_layer'
instead of 'pxafb_overlay' or something alike)
See Documentation/fb/pxafb.txt for additional usage information.
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Cc: Rodolfo Giometti <giometti@linux.it>
Signed-off-by: Eric Miao <ycmiao@ycmiao-hp520.(none)>
198 lines
9.0 KiB
C
198 lines
9.0 KiB
C
#ifndef __ASM_ARCH_REGS_LCD_H
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#define __ASM_ARCH_REGS_LCD_H
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#include <mach/bitfield.h>
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/*
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* LCD Controller Registers and Bits Definitions
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*/
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#define LCCR0 (0x000) /* LCD Controller Control Register 0 */
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#define LCCR1 (0x004) /* LCD Controller Control Register 1 */
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#define LCCR2 (0x008) /* LCD Controller Control Register 2 */
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#define LCCR3 (0x00C) /* LCD Controller Control Register 3 */
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#define LCCR4 (0x010) /* LCD Controller Control Register 4 */
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#define LCCR5 (0x014) /* LCD Controller Control Register 5 */
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#define LCSR (0x038) /* LCD Controller Status Register 0 */
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#define LCSR1 (0x034) /* LCD Controller Status Register 1 */
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#define LIIDR (0x03C) /* LCD Controller Interrupt ID Register */
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#define TMEDRGBR (0x040) /* TMED RGB Seed Register */
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#define TMEDCR (0x044) /* TMED Control Register */
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#define FBR0 (0x020) /* DMA Channel 0 Frame Branch Register */
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#define FBR1 (0x024) /* DMA Channel 1 Frame Branch Register */
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#define FBR2 (0x028) /* DMA Channel 2 Frame Branch Register */
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#define FBR3 (0x02C) /* DMA Channel 2 Frame Branch Register */
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#define FBR4 (0x030) /* DMA Channel 2 Frame Branch Register */
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#define FBR5 (0x110) /* DMA Channel 2 Frame Branch Register */
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#define FBR6 (0x114) /* DMA Channel 2 Frame Branch Register */
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#define OVL1C1 (0x050) /* Overlay 1 Control Register 1 */
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#define OVL1C2 (0x060) /* Overlay 1 Control Register 2 */
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#define OVL2C1 (0x070) /* Overlay 2 Control Register 1 */
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#define OVL2C2 (0x080) /* Overlay 2 Control Register 2 */
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#define CMDCR (0x100) /* Command Control Register */
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#define PRSR (0x104) /* Panel Read Status Register */
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#define LCCR3_BPP(x) ((((x) & 0x7) << 24) | (((x) & 0x8) ? (1 << 29) : 0))
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#define LCCR3_PDFOR_0 (0 << 30)
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#define LCCR3_PDFOR_1 (1 << 30)
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#define LCCR3_PDFOR_2 (2 << 30)
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#define LCCR3_PDFOR_3 (3 << 30)
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#define LCCR4_PAL_FOR_0 (0 << 15)
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#define LCCR4_PAL_FOR_1 (1 << 15)
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#define LCCR4_PAL_FOR_2 (2 << 15)
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#define LCCR4_PAL_FOR_3 (3 << 15)
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#define LCCR4_PAL_FOR_MASK (3 << 15)
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#define FDADR0 (0x200) /* DMA Channel 0 Frame Descriptor Address Register */
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#define FDADR1 (0x210) /* DMA Channel 1 Frame Descriptor Address Register */
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#define FDADR2 (0x220) /* DMA Channel 2 Frame Descriptor Address Register */
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#define FDADR3 (0x230) /* DMA Channel 3 Frame Descriptor Address Register */
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#define FDADR4 (0x240) /* DMA Channel 4 Frame Descriptor Address Register */
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#define FDADR5 (0x250) /* DMA Channel 5 Frame Descriptor Address Register */
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#define FDADR6 (0x260) /* DMA Channel 6 Frame Descriptor Address Register */
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#define LCCR0_ENB (1 << 0) /* LCD Controller enable */
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#define LCCR0_CMS (1 << 1) /* Color/Monochrome Display Select */
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#define LCCR0_Color (LCCR0_CMS*0) /* Color display */
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#define LCCR0_Mono (LCCR0_CMS*1) /* Monochrome display */
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#define LCCR0_SDS (1 << 2) /* Single/Dual Panel Display Select */
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#define LCCR0_Sngl (LCCR0_SDS*0) /* Single panel display */
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#define LCCR0_Dual (LCCR0_SDS*1) /* Dual panel display */
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#define LCCR0_LDM (1 << 3) /* LCD Disable Done Mask */
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#define LCCR0_SFM (1 << 4) /* Start of frame mask */
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#define LCCR0_IUM (1 << 5) /* Input FIFO underrun mask */
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#define LCCR0_EFM (1 << 6) /* End of Frame mask */
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#define LCCR0_PAS (1 << 7) /* Passive/Active display Select */
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#define LCCR0_Pas (LCCR0_PAS*0) /* Passive display (STN) */
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#define LCCR0_Act (LCCR0_PAS*1) /* Active display (TFT) */
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#define LCCR0_DPD (1 << 9) /* Double Pixel Data (monochrome) */
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#define LCCR0_4PixMono (LCCR0_DPD*0) /* 4-Pixel/clock Monochrome display */
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#define LCCR0_8PixMono (LCCR0_DPD*1) /* 8-Pixel/clock Monochrome display */
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#define LCCR0_DIS (1 << 10) /* LCD Disable */
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#define LCCR0_QDM (1 << 11) /* LCD Quick Disable mask */
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#define LCCR0_PDD (0xff << 12) /* Palette DMA request delay */
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#define LCCR0_PDD_S 12
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#define LCCR0_BM (1 << 20) /* Branch mask */
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#define LCCR0_OUM (1 << 21) /* Output FIFO underrun mask */
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#define LCCR0_LCDT (1 << 22) /* LCD panel type */
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#define LCCR0_RDSTM (1 << 23) /* Read status interrupt mask */
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#define LCCR0_CMDIM (1 << 24) /* Command interrupt mask */
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#define LCCR0_OUC (1 << 25) /* Overlay Underlay control bit */
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#define LCCR0_LDDALT (1 << 26) /* LDD alternate mapping control */
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#define LCCR1_PPL Fld (10, 0) /* Pixels Per Line - 1 */
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#define LCCR1_DisWdth(Pixel) (((Pixel) - 1) << FShft (LCCR1_PPL))
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#define LCCR1_HSW Fld (6, 10) /* Horizontal Synchronization */
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#define LCCR1_HorSnchWdth(Tpix) (((Tpix) - 1) << FShft (LCCR1_HSW))
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#define LCCR1_ELW Fld (8, 16) /* End-of-Line pixel clock Wait - 1 */
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#define LCCR1_EndLnDel(Tpix) (((Tpix) - 1) << FShft (LCCR1_ELW))
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#define LCCR1_BLW Fld (8, 24) /* Beginning-of-Line pixel clock */
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#define LCCR1_BegLnDel(Tpix) (((Tpix) - 1) << FShft (LCCR1_BLW))
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#define LCCR2_LPP Fld (10, 0) /* Line Per Panel - 1 */
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#define LCCR2_DisHght(Line) (((Line) - 1) << FShft (LCCR2_LPP))
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#define LCCR2_VSW Fld (6, 10) /* Vertical Synchronization pulse - 1 */
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#define LCCR2_VrtSnchWdth(Tln) (((Tln) - 1) << FShft (LCCR2_VSW))
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#define LCCR2_EFW Fld (8, 16) /* End-of-Frame line clock Wait */
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#define LCCR2_EndFrmDel(Tln) ((Tln) << FShft (LCCR2_EFW))
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#define LCCR2_BFW Fld (8, 24) /* Beginning-of-Frame line clock */
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#define LCCR2_BegFrmDel(Tln) ((Tln) << FShft (LCCR2_BFW))
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#define LCCR3_API (0xf << 16) /* AC Bias pin trasitions per interrupt */
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#define LCCR3_API_S 16
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#define LCCR3_VSP (1 << 20) /* vertical sync polarity */
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#define LCCR3_HSP (1 << 21) /* horizontal sync polarity */
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#define LCCR3_PCP (1 << 22) /* Pixel Clock Polarity (L_PCLK) */
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#define LCCR3_PixRsEdg (LCCR3_PCP*0) /* Pixel clock Rising-Edge */
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#define LCCR3_PixFlEdg (LCCR3_PCP*1) /* Pixel clock Falling-Edge */
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#define LCCR3_OEP (1 << 23) /* Output Enable Polarity */
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#define LCCR3_OutEnH (LCCR3_OEP*0) /* Output Enable active High */
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#define LCCR3_OutEnL (LCCR3_OEP*1) /* Output Enable active Low */
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#define LCCR3_DPC (1 << 27) /* double pixel clock mode */
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#define LCCR3_PCD Fld (8, 0) /* Pixel Clock Divisor */
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#define LCCR3_PixClkDiv(Div) (((Div) << FShft (LCCR3_PCD)))
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#define LCCR3_ACB Fld (8, 8) /* AC Bias */
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#define LCCR3_Acb(Acb) (((Acb) << FShft (LCCR3_ACB)))
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#define LCCR3_HorSnchH (LCCR3_HSP*0) /* HSP Active High */
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#define LCCR3_HorSnchL (LCCR3_HSP*1) /* HSP Active Low */
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#define LCCR3_VrtSnchH (LCCR3_VSP*0) /* VSP Active High */
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#define LCCR3_VrtSnchL (LCCR3_VSP*1) /* VSP Active Low */
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#define LCCR5_IUM(x) (1 << ((x) + 23)) /* input underrun mask */
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#define LCCR5_BSM(x) (1 << ((x) + 15)) /* branch mask */
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#define LCCR5_EOFM(x) (1 << ((x) + 7)) /* end of frame mask */
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#define LCCR5_SOFM(x) (1 << ((x) + 0)) /* start of frame mask */
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#define LCSR_LDD (1 << 0) /* LCD Disable Done */
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#define LCSR_SOF (1 << 1) /* Start of frame */
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#define LCSR_BER (1 << 2) /* Bus error */
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#define LCSR_ABC (1 << 3) /* AC Bias count */
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#define LCSR_IUL (1 << 4) /* input FIFO underrun Lower panel */
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#define LCSR_IUU (1 << 5) /* input FIFO underrun Upper panel */
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#define LCSR_OU (1 << 6) /* output FIFO underrun */
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#define LCSR_QD (1 << 7) /* quick disable */
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#define LCSR_EOF (1 << 8) /* end of frame */
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#define LCSR_BS (1 << 9) /* branch status */
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#define LCSR_SINT (1 << 10) /* subsequent interrupt */
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#define LCSR_RD_ST (1 << 11) /* read status */
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#define LCSR_CMD_INT (1 << 12) /* command interrupt */
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#define LCSR1_IU(x) (1 << ((x) + 23)) /* Input FIFO underrun */
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#define LCSR1_BS(x) (1 << ((x) + 15)) /* Branch Status */
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#define LCSR1_EOF(x) (1 << ((x) + 7)) /* End of Frame Status */
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#define LCSR1_SOF(x) (1 << ((x) - 1)) /* Start of Frame Status */
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#define LDCMD_PAL (1 << 26) /* instructs DMA to load palette buffer */
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/* overlay control registers */
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#define OVLxC1_PPL(x) ((((x) - 1) & 0x3ff) << 0) /* Pixels Per Line */
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#define OVLxC1_LPO(x) ((((x) - 1) & 0x3ff) << 10) /* Number of Lines */
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#define OVLxC1_BPP(x) (((x) & 0xf) << 20) /* Bits Per Pixel */
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#define OVLxC1_OEN (1 << 31) /* Enable bit for Overlay */
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#define OVLxC2_XPOS(x) (((x) & 0x3ff) << 0) /* Horizontal Position */
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#define OVLxC2_YPOS(x) (((x) & 0x3ff) << 10) /* Vertical Position */
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#define OVL2C2_PFOR(x) (((x) & 0x7) << 20) /* Pixel Format */
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/* smartpanel related */
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#define PRSR_DATA(x) ((x) & 0xff) /* Panel Data */
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#define PRSR_A0 (1 << 8) /* Read Data Source */
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#define PRSR_ST_OK (1 << 9) /* Status OK */
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#define PRSR_CON_NT (1 << 10) /* Continue to Next Command */
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#define SMART_CMD_A0 (0x1 << 8)
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#define SMART_CMD_READ_STATUS_REG (0x0 << 9)
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#define SMART_CMD_READ_FRAME_BUFFER ((0x0 << 9) | SMART_CMD_A0)
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#define SMART_CMD_WRITE_COMMAND (0x1 << 9)
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#define SMART_CMD_WRITE_DATA ((0x1 << 9) | SMART_CMD_A0)
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#define SMART_CMD_WRITE_FRAME ((0x2 << 9) | SMART_CMD_A0)
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#define SMART_CMD_WAIT_FOR_VSYNC (0x3 << 9)
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#define SMART_CMD_NOOP (0x4 << 9)
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#define SMART_CMD_INTERRUPT (0x5 << 9)
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#define SMART_CMD(x) (SMART_CMD_WRITE_COMMAND | ((x) & 0xff))
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#define SMART_DAT(x) (SMART_CMD_WRITE_DATA | ((x) & 0xff))
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/* SMART_DELAY() is introduced for software controlled delay primitive which
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* can be inserted between command sequences, unused command 0x6 is used here
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* and delay ranges from 0ms ~ 255ms
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*/
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#define SMART_CMD_DELAY (0x6 << 9)
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#define SMART_DELAY(ms) (SMART_CMD_DELAY | ((ms) & 0xff))
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#endif /* __ASM_ARCH_REGS_LCD_H */
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