root / hw / pxa2xx_lcd.c @ 9077f01b
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/*
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* Intel XScale PXA255/270 LCDC emulation.
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*
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* Copyright (c) 2006 Openedhand Ltd.
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* Written by Andrzej Zaborowski <balrog@zabor.org>
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*
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* This code is licensed under the GPLv2.
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*
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* Contributions after 2012-01-13 are licensed under the terms of the
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* GNU GPL, version 2 or (at your option) any later version.
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*/
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#include "hw.h" |
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#include "console.h" |
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#include "pxa.h" |
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#include "pixel_ops.h" |
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/* FIXME: For graphic_rotate. Should probably be done in common code. */
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#include "sysemu.h" |
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#include "framebuffer.h" |
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struct DMAChannel {
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uint32_t branch; |
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uint8_t up; |
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uint8_t palette[1024];
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uint8_t pbuffer[1024];
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void (*redraw)(PXA2xxLCDState *s, target_phys_addr_t addr,
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int *miny, int *maxy); |
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uint32_t descriptor; |
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uint32_t source; |
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uint32_t id; |
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uint32_t command; |
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}; |
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struct PXA2xxLCDState {
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MemoryRegion *sysmem; |
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MemoryRegion iomem; |
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qemu_irq irq; |
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int irqlevel;
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int invalidated;
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DisplayState *ds; |
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drawfn *line_fn[2];
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int dest_width;
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int xres, yres;
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int pal_for;
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int transp;
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enum {
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pxa_lcdc_2bpp = 1,
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pxa_lcdc_4bpp = 2,
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pxa_lcdc_8bpp = 3,
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pxa_lcdc_16bpp = 4,
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pxa_lcdc_18bpp = 5,
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pxa_lcdc_18pbpp = 6,
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pxa_lcdc_19bpp = 7,
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pxa_lcdc_19pbpp = 8,
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pxa_lcdc_24bpp = 9,
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pxa_lcdc_25bpp = 10,
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} bpp; |
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uint32_t control[6];
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uint32_t status[2];
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uint32_t ovl1c[2];
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uint32_t ovl2c[2];
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uint32_t ccr; |
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uint32_t cmdcr; |
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uint32_t trgbr; |
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uint32_t tcr; |
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uint32_t liidr; |
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uint8_t bscntr; |
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struct DMAChannel dma_ch[7]; |
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qemu_irq vsync_cb; |
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int orientation;
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}; |
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typedef struct QEMU_PACKED { |
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uint32_t fdaddr; |
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uint32_t fsaddr; |
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uint32_t fidr; |
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uint32_t ldcmd; |
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} PXAFrameDescriptor; |
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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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|
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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 3 Frame Branch register */ |
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#define FBR4 0x030 /* DMA Channel 4 Frame Branch register */ |
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#define FBR5 0x110 /* DMA Channel 5 Frame Branch register */ |
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#define FBR6 0x114 /* DMA Channel 6 Frame Branch register */ |
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|
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#define LCSR1 0x034 /* LCD Controller Status register 1 */ |
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#define LCSR0 0x038 /* LCD Controller Status register 0 */ |
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#define LIIDR 0x03c /* LCD Controller Interrupt ID register */ |
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|
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#define TRGBR 0x040 /* TMED RGB Seed register */ |
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#define TCR 0x044 /* TMED Control register */ |
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|
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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 CCR 0x090 /* Cursor Control register */ |
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|
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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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|
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#define PXA_LCDDMA_CHANS 7 |
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#define DMA_FDADR 0x00 /* Frame Descriptor Address register */ |
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#define DMA_FSADR 0x04 /* Frame Source Address register */ |
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#define DMA_FIDR 0x08 /* Frame ID register */ |
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#define DMA_LDCMD 0x0c /* Command register */ |
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|
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/* LCD Buffer Strength Control register */
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#define BSCNTR 0x04000054 |
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|
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/* Bitfield masks */
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#define LCCR0_ENB (1 << 0) |
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#define LCCR0_CMS (1 << 1) |
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#define LCCR0_SDS (1 << 2) |
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#define LCCR0_LDM (1 << 3) |
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#define LCCR0_SOFM0 (1 << 4) |
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#define LCCR0_IUM (1 << 5) |
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#define LCCR0_EOFM0 (1 << 6) |
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#define LCCR0_PAS (1 << 7) |
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#define LCCR0_DPD (1 << 9) |
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#define LCCR0_DIS (1 << 10) |
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#define LCCR0_QDM (1 << 11) |
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#define LCCR0_PDD (0xff << 12) |
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#define LCCR0_BSM0 (1 << 20) |
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#define LCCR0_OUM (1 << 21) |
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#define LCCR0_LCDT (1 << 22) |
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#define LCCR0_RDSTM (1 << 23) |
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#define LCCR0_CMDIM (1 << 24) |
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#define LCCR0_OUC (1 << 25) |
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#define LCCR0_LDDALT (1 << 26) |
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#define LCCR1_PPL(x) ((x) & 0x3ff) |
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#define LCCR2_LPP(x) ((x) & 0x3ff) |
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#define LCCR3_API (15 << 16) |
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#define LCCR3_BPP(x) ((((x) >> 24) & 7) | (((x) >> 26) & 8)) |
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#define LCCR3_PDFOR(x) (((x) >> 30) & 3) |
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#define LCCR4_K1(x) (((x) >> 0) & 7) |
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#define LCCR4_K2(x) (((x) >> 3) & 7) |
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#define LCCR4_K3(x) (((x) >> 6) & 7) |
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#define LCCR4_PALFOR(x) (((x) >> 15) & 3) |
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#define LCCR5_SOFM(ch) (1 << (ch - 1)) |
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#define LCCR5_EOFM(ch) (1 << (ch + 7)) |
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#define LCCR5_BSM(ch) (1 << (ch + 15)) |
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#define LCCR5_IUM(ch) (1 << (ch + 23)) |
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#define OVLC1_EN (1 << 31) |
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#define CCR_CEN (1 << 31) |
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#define FBR_BRA (1 << 0) |
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#define FBR_BINT (1 << 1) |
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#define FBR_SRCADDR (0xfffffff << 4) |
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#define LCSR0_LDD (1 << 0) |
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#define LCSR0_SOF0 (1 << 1) |
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#define LCSR0_BER (1 << 2) |
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#define LCSR0_ABC (1 << 3) |
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#define LCSR0_IU0 (1 << 4) |
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#define LCSR0_IU1 (1 << 5) |
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#define LCSR0_OU (1 << 6) |
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#define LCSR0_QD (1 << 7) |
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#define LCSR0_EOF0 (1 << 8) |
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#define LCSR0_BS0 (1 << 9) |
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#define LCSR0_SINT (1 << 10) |
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#define LCSR0_RDST (1 << 11) |
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#define LCSR0_CMDINT (1 << 12) |
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#define LCSR0_BERCH(x) (((x) & 7) << 28) |
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#define LCSR1_SOF(ch) (1 << (ch - 1)) |
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#define LCSR1_EOF(ch) (1 << (ch + 7)) |
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#define LCSR1_BS(ch) (1 << (ch + 15)) |
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#define LCSR1_IU(ch) (1 << (ch + 23)) |
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#define LDCMD_LENGTH(x) ((x) & 0x001ffffc) |
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#define LDCMD_EOFINT (1 << 21) |
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#define LDCMD_SOFINT (1 << 22) |
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#define LDCMD_PAL (1 << 26) |
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|
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/* Route internal interrupt lines to the global IC */
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static void pxa2xx_lcdc_int_update(PXA2xxLCDState *s) |
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{ |
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int level = 0; |
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level |= (s->status[0] & LCSR0_LDD) && !(s->control[0] & LCCR0_LDM); |
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level |= (s->status[0] & LCSR0_SOF0) && !(s->control[0] & LCCR0_SOFM0); |
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level |= (s->status[0] & LCSR0_IU0) && !(s->control[0] & LCCR0_IUM); |
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level |= (s->status[0] & LCSR0_IU1) && !(s->control[5] & LCCR5_IUM(1)); |
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level |= (s->status[0] & LCSR0_OU) && !(s->control[0] & LCCR0_OUM); |
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level |= (s->status[0] & LCSR0_QD) && !(s->control[0] & LCCR0_QDM); |
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level |= (s->status[0] & LCSR0_EOF0) && !(s->control[0] & LCCR0_EOFM0); |
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level |= (s->status[0] & LCSR0_BS0) && !(s->control[0] & LCCR0_BSM0); |
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level |= (s->status[0] & LCSR0_RDST) && !(s->control[0] & LCCR0_RDSTM); |
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level |= (s->status[0] & LCSR0_CMDINT) && !(s->control[0] & LCCR0_CMDIM); |
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level |= (s->status[1] & ~s->control[5]); |
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qemu_set_irq(s->irq, !!level); |
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s->irqlevel = level; |
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} |
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/* Set Branch Status interrupt high and poke associated registers */
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static inline void pxa2xx_dma_bs_set(PXA2xxLCDState *s, int ch) |
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{ |
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int unmasked;
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if (ch == 0) { |
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s->status[0] |= LCSR0_BS0;
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unmasked = !(s->control[0] & LCCR0_BSM0);
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} else {
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s->status[1] |= LCSR1_BS(ch);
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unmasked = !(s->control[5] & LCCR5_BSM(ch));
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} |
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if (unmasked) {
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if (s->irqlevel)
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s->status[0] |= LCSR0_SINT;
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else
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s->liidr = s->dma_ch[ch].id; |
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} |
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} |
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/* Set Start Of Frame Status interrupt high and poke associated registers */
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static inline void pxa2xx_dma_sof_set(PXA2xxLCDState *s, int ch) |
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{ |
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int unmasked;
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if (!(s->dma_ch[ch].command & LDCMD_SOFINT))
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return;
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if (ch == 0) { |
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s->status[0] |= LCSR0_SOF0;
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unmasked = !(s->control[0] & LCCR0_SOFM0);
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} else {
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s->status[1] |= LCSR1_SOF(ch);
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unmasked = !(s->control[5] & LCCR5_SOFM(ch));
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} |
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if (unmasked) {
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if (s->irqlevel)
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s->status[0] |= LCSR0_SINT;
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else
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s->liidr = s->dma_ch[ch].id; |
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} |
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} |
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/* Set End Of Frame Status interrupt high and poke associated registers */
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static inline void pxa2xx_dma_eof_set(PXA2xxLCDState *s, int ch) |
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{ |
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int unmasked;
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if (!(s->dma_ch[ch].command & LDCMD_EOFINT))
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return;
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if (ch == 0) { |
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s->status[0] |= LCSR0_EOF0;
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unmasked = !(s->control[0] & LCCR0_EOFM0);
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} else {
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s->status[1] |= LCSR1_EOF(ch);
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unmasked = !(s->control[5] & LCCR5_EOFM(ch));
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} |
263 |
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if (unmasked) {
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if (s->irqlevel)
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s->status[0] |= LCSR0_SINT;
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else
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s->liidr = s->dma_ch[ch].id; |
269 |
} |
270 |
} |
271 |
|
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/* Set Bus Error Status interrupt high and poke associated registers */
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static inline void pxa2xx_dma_ber_set(PXA2xxLCDState *s, int ch) |
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{ |
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s->status[0] |= LCSR0_BERCH(ch) | LCSR0_BER;
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if (s->irqlevel)
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s->status[0] |= LCSR0_SINT;
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else
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s->liidr = s->dma_ch[ch].id; |
280 |
} |
281 |
|
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/* Set Read Status interrupt high and poke associated registers */
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static inline void pxa2xx_dma_rdst_set(PXA2xxLCDState *s) |
284 |
{ |
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s->status[0] |= LCSR0_RDST;
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if (s->irqlevel && !(s->control[0] & LCCR0_RDSTM)) |
287 |
s->status[0] |= LCSR0_SINT;
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} |
289 |
|
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/* Load new Frame Descriptors from DMA */
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static void pxa2xx_descriptor_load(PXA2xxLCDState *s) |
292 |
{ |
293 |
PXAFrameDescriptor desc; |
294 |
target_phys_addr_t descptr; |
295 |
int i;
|
296 |
|
297 |
for (i = 0; i < PXA_LCDDMA_CHANS; i ++) { |
298 |
s->dma_ch[i].source = 0;
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299 |
|
300 |
if (!s->dma_ch[i].up)
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301 |
continue;
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302 |
|
303 |
if (s->dma_ch[i].branch & FBR_BRA) {
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304 |
descptr = s->dma_ch[i].branch & FBR_SRCADDR; |
305 |
if (s->dma_ch[i].branch & FBR_BINT)
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pxa2xx_dma_bs_set(s, i); |
307 |
s->dma_ch[i].branch &= ~FBR_BRA; |
308 |
} else
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309 |
descptr = s->dma_ch[i].descriptor; |
310 |
|
311 |
if (!((descptr >= PXA2XX_SDRAM_BASE && descptr +
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312 |
sizeof(desc) <= PXA2XX_SDRAM_BASE + ram_size) ||
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313 |
(descptr >= PXA2XX_INTERNAL_BASE && descptr + sizeof(desc) <=
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314 |
PXA2XX_INTERNAL_BASE + PXA2XX_INTERNAL_SIZE))) { |
315 |
continue;
|
316 |
} |
317 |
|
318 |
cpu_physical_memory_read(descptr, (void *)&desc, sizeof(desc)); |
319 |
s->dma_ch[i].descriptor = tswap32(desc.fdaddr); |
320 |
s->dma_ch[i].source = tswap32(desc.fsaddr); |
321 |
s->dma_ch[i].id = tswap32(desc.fidr); |
322 |
s->dma_ch[i].command = tswap32(desc.ldcmd); |
323 |
} |
324 |
} |
325 |
|
326 |
static uint64_t pxa2xx_lcdc_read(void *opaque, target_phys_addr_t offset, |
327 |
unsigned size)
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328 |
{ |
329 |
PXA2xxLCDState *s = (PXA2xxLCDState *) opaque; |
330 |
int ch;
|
331 |
|
332 |
switch (offset) {
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333 |
case LCCR0:
|
334 |
return s->control[0]; |
335 |
case LCCR1:
|
336 |
return s->control[1]; |
337 |
case LCCR2:
|
338 |
return s->control[2]; |
339 |
case LCCR3:
|
340 |
return s->control[3]; |
341 |
case LCCR4:
|
342 |
return s->control[4]; |
343 |
case LCCR5:
|
344 |
return s->control[5]; |
345 |
|
346 |
case OVL1C1:
|
347 |
return s->ovl1c[0]; |
348 |
case OVL1C2:
|
349 |
return s->ovl1c[1]; |
350 |
case OVL2C1:
|
351 |
return s->ovl2c[0]; |
352 |
case OVL2C2:
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353 |
return s->ovl2c[1]; |
354 |
|
355 |
case CCR:
|
356 |
return s->ccr;
|
357 |
|
358 |
case CMDCR:
|
359 |
return s->cmdcr;
|
360 |
|
361 |
case TRGBR:
|
362 |
return s->trgbr;
|
363 |
case TCR:
|
364 |
return s->tcr;
|
365 |
|
366 |
case 0x200 ... 0x1000: /* DMA per-channel registers */ |
367 |
ch = (offset - 0x200) >> 4; |
368 |
if (!(ch >= 0 && ch < PXA_LCDDMA_CHANS)) |
369 |
goto fail;
|
370 |
|
371 |
switch (offset & 0xf) { |
372 |
case DMA_FDADR:
|
373 |
return s->dma_ch[ch].descriptor;
|
374 |
case DMA_FSADR:
|
375 |
return s->dma_ch[ch].source;
|
376 |
case DMA_FIDR:
|
377 |
return s->dma_ch[ch].id;
|
378 |
case DMA_LDCMD:
|
379 |
return s->dma_ch[ch].command;
|
380 |
default:
|
381 |
goto fail;
|
382 |
} |
383 |
|
384 |
case FBR0:
|
385 |
return s->dma_ch[0].branch; |
386 |
case FBR1:
|
387 |
return s->dma_ch[1].branch; |
388 |
case FBR2:
|
389 |
return s->dma_ch[2].branch; |
390 |
case FBR3:
|
391 |
return s->dma_ch[3].branch; |
392 |
case FBR4:
|
393 |
return s->dma_ch[4].branch; |
394 |
case FBR5:
|
395 |
return s->dma_ch[5].branch; |
396 |
case FBR6:
|
397 |
return s->dma_ch[6].branch; |
398 |
|
399 |
case BSCNTR:
|
400 |
return s->bscntr;
|
401 |
|
402 |
case PRSR:
|
403 |
return 0; |
404 |
|
405 |
case LCSR0:
|
406 |
return s->status[0]; |
407 |
case LCSR1:
|
408 |
return s->status[1]; |
409 |
case LIIDR:
|
410 |
return s->liidr;
|
411 |
|
412 |
default:
|
413 |
fail:
|
414 |
hw_error("%s: Bad offset " REG_FMT "\n", __FUNCTION__, offset); |
415 |
} |
416 |
|
417 |
return 0; |
418 |
} |
419 |
|
420 |
static void pxa2xx_lcdc_write(void *opaque, target_phys_addr_t offset, |
421 |
uint64_t value, unsigned size)
|
422 |
{ |
423 |
PXA2xxLCDState *s = (PXA2xxLCDState *) opaque; |
424 |
int ch;
|
425 |
|
426 |
switch (offset) {
|
427 |
case LCCR0:
|
428 |
/* ACK Quick Disable done */
|
429 |
if ((s->control[0] & LCCR0_ENB) && !(value & LCCR0_ENB)) |
430 |
s->status[0] |= LCSR0_QD;
|
431 |
|
432 |
if (!(s->control[0] & LCCR0_LCDT) && (value & LCCR0_LCDT)) |
433 |
printf("%s: internal frame buffer unsupported\n", __FUNCTION__);
|
434 |
|
435 |
if ((s->control[3] & LCCR3_API) && |
436 |
(value & LCCR0_ENB) && !(value & LCCR0_LCDT)) |
437 |
s->status[0] |= LCSR0_ABC;
|
438 |
|
439 |
s->control[0] = value & 0x07ffffff; |
440 |
pxa2xx_lcdc_int_update(s); |
441 |
|
442 |
s->dma_ch[0].up = !!(value & LCCR0_ENB);
|
443 |
s->dma_ch[1].up = (s->ovl1c[0] & OVLC1_EN) || (value & LCCR0_SDS); |
444 |
break;
|
445 |
|
446 |
case LCCR1:
|
447 |
s->control[1] = value;
|
448 |
break;
|
449 |
|
450 |
case LCCR2:
|
451 |
s->control[2] = value;
|
452 |
break;
|
453 |
|
454 |
case LCCR3:
|
455 |
s->control[3] = value & 0xefffffff; |
456 |
s->bpp = LCCR3_BPP(value); |
457 |
break;
|
458 |
|
459 |
case LCCR4:
|
460 |
s->control[4] = value & 0x83ff81ff; |
461 |
break;
|
462 |
|
463 |
case LCCR5:
|
464 |
s->control[5] = value & 0x3f3f3f3f; |
465 |
break;
|
466 |
|
467 |
case OVL1C1:
|
468 |
if (!(s->ovl1c[0] & OVLC1_EN) && (value & OVLC1_EN)) |
469 |
printf("%s: Overlay 1 not supported\n", __FUNCTION__);
|
470 |
|
471 |
s->ovl1c[0] = value & 0x80ffffff; |
472 |
s->dma_ch[1].up = (value & OVLC1_EN) || (s->control[0] & LCCR0_SDS); |
473 |
break;
|
474 |
|
475 |
case OVL1C2:
|
476 |
s->ovl1c[1] = value & 0x000fffff; |
477 |
break;
|
478 |
|
479 |
case OVL2C1:
|
480 |
if (!(s->ovl2c[0] & OVLC1_EN) && (value & OVLC1_EN)) |
481 |
printf("%s: Overlay 2 not supported\n", __FUNCTION__);
|
482 |
|
483 |
s->ovl2c[0] = value & 0x80ffffff; |
484 |
s->dma_ch[2].up = !!(value & OVLC1_EN);
|
485 |
s->dma_ch[3].up = !!(value & OVLC1_EN);
|
486 |
s->dma_ch[4].up = !!(value & OVLC1_EN);
|
487 |
break;
|
488 |
|
489 |
case OVL2C2:
|
490 |
s->ovl2c[1] = value & 0x007fffff; |
491 |
break;
|
492 |
|
493 |
case CCR:
|
494 |
if (!(s->ccr & CCR_CEN) && (value & CCR_CEN))
|
495 |
printf("%s: Hardware cursor unimplemented\n", __FUNCTION__);
|
496 |
|
497 |
s->ccr = value & 0x81ffffe7;
|
498 |
s->dma_ch[5].up = !!(value & CCR_CEN);
|
499 |
break;
|
500 |
|
501 |
case CMDCR:
|
502 |
s->cmdcr = value & 0xff;
|
503 |
break;
|
504 |
|
505 |
case TRGBR:
|
506 |
s->trgbr = value & 0x00ffffff;
|
507 |
break;
|
508 |
|
509 |
case TCR:
|
510 |
s->tcr = value & 0x7fff;
|
511 |
break;
|
512 |
|
513 |
case 0x200 ... 0x1000: /* DMA per-channel registers */ |
514 |
ch = (offset - 0x200) >> 4; |
515 |
if (!(ch >= 0 && ch < PXA_LCDDMA_CHANS)) |
516 |
goto fail;
|
517 |
|
518 |
switch (offset & 0xf) { |
519 |
case DMA_FDADR:
|
520 |
s->dma_ch[ch].descriptor = value & 0xfffffff0;
|
521 |
break;
|
522 |
|
523 |
default:
|
524 |
goto fail;
|
525 |
} |
526 |
break;
|
527 |
|
528 |
case FBR0:
|
529 |
s->dma_ch[0].branch = value & 0xfffffff3; |
530 |
break;
|
531 |
case FBR1:
|
532 |
s->dma_ch[1].branch = value & 0xfffffff3; |
533 |
break;
|
534 |
case FBR2:
|
535 |
s->dma_ch[2].branch = value & 0xfffffff3; |
536 |
break;
|
537 |
case FBR3:
|
538 |
s->dma_ch[3].branch = value & 0xfffffff3; |
539 |
break;
|
540 |
case FBR4:
|
541 |
s->dma_ch[4].branch = value & 0xfffffff3; |
542 |
break;
|
543 |
case FBR5:
|
544 |
s->dma_ch[5].branch = value & 0xfffffff3; |
545 |
break;
|
546 |
case FBR6:
|
547 |
s->dma_ch[6].branch = value & 0xfffffff3; |
548 |
break;
|
549 |
|
550 |
case BSCNTR:
|
551 |
s->bscntr = value & 0xf;
|
552 |
break;
|
553 |
|
554 |
case PRSR:
|
555 |
break;
|
556 |
|
557 |
case LCSR0:
|
558 |
s->status[0] &= ~(value & 0xfff); |
559 |
if (value & LCSR0_BER)
|
560 |
s->status[0] &= ~LCSR0_BERCH(7); |
561 |
break;
|
562 |
|
563 |
case LCSR1:
|
564 |
s->status[1] &= ~(value & 0x3e3f3f); |
565 |
break;
|
566 |
|
567 |
default:
|
568 |
fail:
|
569 |
hw_error("%s: Bad offset " REG_FMT "\n", __FUNCTION__, offset); |
570 |
} |
571 |
} |
572 |
|
573 |
static const MemoryRegionOps pxa2xx_lcdc_ops = { |
574 |
.read = pxa2xx_lcdc_read, |
575 |
.write = pxa2xx_lcdc_write, |
576 |
.endianness = DEVICE_NATIVE_ENDIAN, |
577 |
}; |
578 |
|
579 |
/* Load new palette for a given DMA channel, convert to internal format */
|
580 |
static void pxa2xx_palette_parse(PXA2xxLCDState *s, int ch, int bpp) |
581 |
{ |
582 |
int i, n, format, r, g, b, alpha;
|
583 |
uint32_t *dest; |
584 |
uint8_t *src; |
585 |
s->pal_for = LCCR4_PALFOR(s->control[4]);
|
586 |
format = s->pal_for; |
587 |
|
588 |
switch (bpp) {
|
589 |
case pxa_lcdc_2bpp:
|
590 |
n = 4;
|
591 |
break;
|
592 |
case pxa_lcdc_4bpp:
|
593 |
n = 16;
|
594 |
break;
|
595 |
case pxa_lcdc_8bpp:
|
596 |
n = 256;
|
597 |
break;
|
598 |
default:
|
599 |
format = 0;
|
600 |
return;
|
601 |
} |
602 |
|
603 |
src = (uint8_t *) s->dma_ch[ch].pbuffer; |
604 |
dest = (uint32_t *) s->dma_ch[ch].palette; |
605 |
alpha = r = g = b = 0;
|
606 |
|
607 |
for (i = 0; i < n; i ++) { |
608 |
switch (format) {
|
609 |
case 0: /* 16 bpp, no transparency */ |
610 |
alpha = 0;
|
611 |
if (s->control[0] & LCCR0_CMS) { |
612 |
r = g = b = *(uint16_t *) src & 0xff;
|
613 |
} |
614 |
else {
|
615 |
r = (*(uint16_t *) src & 0xf800) >> 8; |
616 |
g = (*(uint16_t *) src & 0x07e0) >> 3; |
617 |
b = (*(uint16_t *) src & 0x001f) << 3; |
618 |
} |
619 |
src += 2;
|
620 |
break;
|
621 |
case 1: /* 16 bpp plus transparency */ |
622 |
alpha = *(uint16_t *) src & (1 << 24); |
623 |
if (s->control[0] & LCCR0_CMS) |
624 |
r = g = b = *(uint16_t *) src & 0xff;
|
625 |
else {
|
626 |
r = (*(uint16_t *) src & 0xf800) >> 8; |
627 |
g = (*(uint16_t *) src & 0x07e0) >> 3; |
628 |
b = (*(uint16_t *) src & 0x001f) << 3; |
629 |
} |
630 |
src += 2;
|
631 |
break;
|
632 |
case 2: /* 18 bpp plus transparency */ |
633 |
alpha = *(uint32_t *) src & (1 << 24); |
634 |
if (s->control[0] & LCCR0_CMS) |
635 |
r = g = b = *(uint32_t *) src & 0xff;
|
636 |
else {
|
637 |
r = (*(uint32_t *) src & 0xf80000) >> 16; |
638 |
g = (*(uint32_t *) src & 0x00fc00) >> 8; |
639 |
b = (*(uint32_t *) src & 0x0000f8);
|
640 |
} |
641 |
src += 4;
|
642 |
break;
|
643 |
case 3: /* 24 bpp plus transparency */ |
644 |
alpha = *(uint32_t *) src & (1 << 24); |
645 |
if (s->control[0] & LCCR0_CMS) |
646 |
r = g = b = *(uint32_t *) src & 0xff;
|
647 |
else {
|
648 |
r = (*(uint32_t *) src & 0xff0000) >> 16; |
649 |
g = (*(uint32_t *) src & 0x00ff00) >> 8; |
650 |
b = (*(uint32_t *) src & 0x0000ff);
|
651 |
} |
652 |
src += 4;
|
653 |
break;
|
654 |
} |
655 |
switch (ds_get_bits_per_pixel(s->ds)) {
|
656 |
case 8: |
657 |
*dest = rgb_to_pixel8(r, g, b) | alpha; |
658 |
break;
|
659 |
case 15: |
660 |
*dest = rgb_to_pixel15(r, g, b) | alpha; |
661 |
break;
|
662 |
case 16: |
663 |
*dest = rgb_to_pixel16(r, g, b) | alpha; |
664 |
break;
|
665 |
case 24: |
666 |
*dest = rgb_to_pixel24(r, g, b) | alpha; |
667 |
break;
|
668 |
case 32: |
669 |
*dest = rgb_to_pixel32(r, g, b) | alpha; |
670 |
break;
|
671 |
} |
672 |
dest ++; |
673 |
} |
674 |
} |
675 |
|
676 |
static void pxa2xx_lcdc_dma0_redraw_rot0(PXA2xxLCDState *s, |
677 |
target_phys_addr_t addr, int *miny, int *maxy) |
678 |
{ |
679 |
int src_width, dest_width;
|
680 |
drawfn fn = NULL;
|
681 |
if (s->dest_width)
|
682 |
fn = s->line_fn[s->transp][s->bpp]; |
683 |
if (!fn)
|
684 |
return;
|
685 |
|
686 |
src_width = (s->xres + 3) & ~3; /* Pad to a 4 pixels multiple */ |
687 |
if (s->bpp == pxa_lcdc_19pbpp || s->bpp == pxa_lcdc_18pbpp)
|
688 |
src_width *= 3;
|
689 |
else if (s->bpp > pxa_lcdc_16bpp) |
690 |
src_width *= 4;
|
691 |
else if (s->bpp > pxa_lcdc_8bpp) |
692 |
src_width *= 2;
|
693 |
|
694 |
dest_width = s->xres * s->dest_width; |
695 |
*miny = 0;
|
696 |
framebuffer_update_display(s->ds, s->sysmem, |
697 |
addr, s->xres, s->yres, |
698 |
src_width, dest_width, s->dest_width, |
699 |
s->invalidated, |
700 |
fn, s->dma_ch[0].palette, miny, maxy);
|
701 |
} |
702 |
|
703 |
static void pxa2xx_lcdc_dma0_redraw_rot90(PXA2xxLCDState *s, |
704 |
target_phys_addr_t addr, int *miny, int *maxy) |
705 |
{ |
706 |
int src_width, dest_width;
|
707 |
drawfn fn = NULL;
|
708 |
if (s->dest_width)
|
709 |
fn = s->line_fn[s->transp][s->bpp]; |
710 |
if (!fn)
|
711 |
return;
|
712 |
|
713 |
src_width = (s->xres + 3) & ~3; /* Pad to a 4 pixels multiple */ |
714 |
if (s->bpp == pxa_lcdc_19pbpp || s->bpp == pxa_lcdc_18pbpp)
|
715 |
src_width *= 3;
|
716 |
else if (s->bpp > pxa_lcdc_16bpp) |
717 |
src_width *= 4;
|
718 |
else if (s->bpp > pxa_lcdc_8bpp) |
719 |
src_width *= 2;
|
720 |
|
721 |
dest_width = s->yres * s->dest_width; |
722 |
*miny = 0;
|
723 |
framebuffer_update_display(s->ds, s->sysmem, |
724 |
addr, s->xres, s->yres, |
725 |
src_width, s->dest_width, -dest_width, |
726 |
s->invalidated, |
727 |
fn, s->dma_ch[0].palette,
|
728 |
miny, maxy); |
729 |
} |
730 |
|
731 |
static void pxa2xx_lcdc_dma0_redraw_rot180(PXA2xxLCDState *s, |
732 |
target_phys_addr_t addr, int *miny, int *maxy) |
733 |
{ |
734 |
int src_width, dest_width;
|
735 |
drawfn fn = NULL;
|
736 |
if (s->dest_width) {
|
737 |
fn = s->line_fn[s->transp][s->bpp]; |
738 |
} |
739 |
if (!fn) {
|
740 |
return;
|
741 |
} |
742 |
|
743 |
src_width = (s->xres + 3) & ~3; /* Pad to a 4 pixels multiple */ |
744 |
if (s->bpp == pxa_lcdc_19pbpp || s->bpp == pxa_lcdc_18pbpp) {
|
745 |
src_width *= 3;
|
746 |
} else if (s->bpp > pxa_lcdc_16bpp) { |
747 |
src_width *= 4;
|
748 |
} else if (s->bpp > pxa_lcdc_8bpp) { |
749 |
src_width *= 2;
|
750 |
} |
751 |
|
752 |
dest_width = s->xres * s->dest_width; |
753 |
*miny = 0;
|
754 |
framebuffer_update_display(s->ds, s->sysmem, |
755 |
addr, s->xres, s->yres, |
756 |
src_width, -dest_width, -s->dest_width, |
757 |
s->invalidated, |
758 |
fn, s->dma_ch[0].palette, miny, maxy);
|
759 |
} |
760 |
|
761 |
static void pxa2xx_lcdc_dma0_redraw_rot270(PXA2xxLCDState *s, |
762 |
target_phys_addr_t addr, int *miny, int *maxy) |
763 |
{ |
764 |
int src_width, dest_width;
|
765 |
drawfn fn = NULL;
|
766 |
if (s->dest_width) {
|
767 |
fn = s->line_fn[s->transp][s->bpp]; |
768 |
} |
769 |
if (!fn) {
|
770 |
return;
|
771 |
} |
772 |
|
773 |
src_width = (s->xres + 3) & ~3; /* Pad to a 4 pixels multiple */ |
774 |
if (s->bpp == pxa_lcdc_19pbpp || s->bpp == pxa_lcdc_18pbpp) {
|
775 |
src_width *= 3;
|
776 |
} else if (s->bpp > pxa_lcdc_16bpp) { |
777 |
src_width *= 4;
|
778 |
} else if (s->bpp > pxa_lcdc_8bpp) { |
779 |
src_width *= 2;
|
780 |
} |
781 |
|
782 |
dest_width = s->yres * s->dest_width; |
783 |
*miny = 0;
|
784 |
framebuffer_update_display(s->ds, s->sysmem, |
785 |
addr, s->xres, s->yres, |
786 |
src_width, -s->dest_width, dest_width, |
787 |
s->invalidated, |
788 |
fn, s->dma_ch[0].palette,
|
789 |
miny, maxy); |
790 |
} |
791 |
|
792 |
static void pxa2xx_lcdc_resize(PXA2xxLCDState *s) |
793 |
{ |
794 |
int width, height;
|
795 |
if (!(s->control[0] & LCCR0_ENB)) |
796 |
return;
|
797 |
|
798 |
width = LCCR1_PPL(s->control[1]) + 1; |
799 |
height = LCCR2_LPP(s->control[2]) + 1; |
800 |
|
801 |
if (width != s->xres || height != s->yres) {
|
802 |
if (s->orientation == 90 || s->orientation == 270) { |
803 |
qemu_console_resize(s->ds, height, width); |
804 |
} else {
|
805 |
qemu_console_resize(s->ds, width, height); |
806 |
} |
807 |
s->invalidated = 1;
|
808 |
s->xres = width; |
809 |
s->yres = height; |
810 |
} |
811 |
} |
812 |
|
813 |
static void pxa2xx_update_display(void *opaque) |
814 |
{ |
815 |
PXA2xxLCDState *s = (PXA2xxLCDState *) opaque; |
816 |
target_phys_addr_t fbptr; |
817 |
int miny, maxy;
|
818 |
int ch;
|
819 |
if (!(s->control[0] & LCCR0_ENB)) |
820 |
return;
|
821 |
|
822 |
pxa2xx_descriptor_load(s); |
823 |
|
824 |
pxa2xx_lcdc_resize(s); |
825 |
miny = s->yres; |
826 |
maxy = 0;
|
827 |
s->transp = s->dma_ch[2].up || s->dma_ch[3].up; |
828 |
/* Note: With overlay planes the order depends on LCCR0 bit 25. */
|
829 |
for (ch = 0; ch < PXA_LCDDMA_CHANS; ch ++) |
830 |
if (s->dma_ch[ch].up) {
|
831 |
if (!s->dma_ch[ch].source) {
|
832 |
pxa2xx_dma_ber_set(s, ch); |
833 |
continue;
|
834 |
} |
835 |
fbptr = s->dma_ch[ch].source; |
836 |
if (!((fbptr >= PXA2XX_SDRAM_BASE &&
|
837 |
fbptr <= PXA2XX_SDRAM_BASE + ram_size) || |
838 |
(fbptr >= PXA2XX_INTERNAL_BASE && |
839 |
fbptr <= PXA2XX_INTERNAL_BASE + PXA2XX_INTERNAL_SIZE))) { |
840 |
pxa2xx_dma_ber_set(s, ch); |
841 |
continue;
|
842 |
} |
843 |
|
844 |
if (s->dma_ch[ch].command & LDCMD_PAL) {
|
845 |
cpu_physical_memory_read(fbptr, s->dma_ch[ch].pbuffer, |
846 |
MAX(LDCMD_LENGTH(s->dma_ch[ch].command), |
847 |
sizeof(s->dma_ch[ch].pbuffer)));
|
848 |
pxa2xx_palette_parse(s, ch, s->bpp); |
849 |
} else {
|
850 |
/* Do we need to reparse palette */
|
851 |
if (LCCR4_PALFOR(s->control[4]) != s->pal_for) |
852 |
pxa2xx_palette_parse(s, ch, s->bpp); |
853 |
|
854 |
/* ACK frame start */
|
855 |
pxa2xx_dma_sof_set(s, ch); |
856 |
|
857 |
s->dma_ch[ch].redraw(s, fbptr, &miny, &maxy); |
858 |
s->invalidated = 0;
|
859 |
|
860 |
/* ACK frame completed */
|
861 |
pxa2xx_dma_eof_set(s, ch); |
862 |
} |
863 |
} |
864 |
|
865 |
if (s->control[0] & LCCR0_DIS) { |
866 |
/* ACK last frame completed */
|
867 |
s->control[0] &= ~LCCR0_ENB;
|
868 |
s->status[0] |= LCSR0_LDD;
|
869 |
} |
870 |
|
871 |
if (miny >= 0) { |
872 |
switch (s->orientation) {
|
873 |
case 0: |
874 |
dpy_update(s->ds, 0, miny, s->xres, maxy - miny + 1); |
875 |
break;
|
876 |
case 90: |
877 |
dpy_update(s->ds, miny, 0, maxy - miny + 1, s->xres); |
878 |
break;
|
879 |
case 180: |
880 |
maxy = s->yres - maxy - 1;
|
881 |
miny = s->yres - miny - 1;
|
882 |
dpy_update(s->ds, 0, maxy, s->xres, miny - maxy + 1); |
883 |
break;
|
884 |
case 270: |
885 |
maxy = s->yres - maxy - 1;
|
886 |
miny = s->yres - miny - 1;
|
887 |
dpy_update(s->ds, maxy, 0, miny - maxy + 1, s->xres); |
888 |
break;
|
889 |
} |
890 |
} |
891 |
pxa2xx_lcdc_int_update(s); |
892 |
|
893 |
qemu_irq_raise(s->vsync_cb); |
894 |
} |
895 |
|
896 |
static void pxa2xx_invalidate_display(void *opaque) |
897 |
{ |
898 |
PXA2xxLCDState *s = (PXA2xxLCDState *) opaque; |
899 |
s->invalidated = 1;
|
900 |
} |
901 |
|
902 |
static void pxa2xx_lcdc_orientation(void *opaque, int angle) |
903 |
{ |
904 |
PXA2xxLCDState *s = (PXA2xxLCDState *) opaque; |
905 |
|
906 |
switch (angle) {
|
907 |
case 0: |
908 |
s->dma_ch[0].redraw = pxa2xx_lcdc_dma0_redraw_rot0;
|
909 |
break;
|
910 |
case 90: |
911 |
s->dma_ch[0].redraw = pxa2xx_lcdc_dma0_redraw_rot90;
|
912 |
break;
|
913 |
case 180: |
914 |
s->dma_ch[0].redraw = pxa2xx_lcdc_dma0_redraw_rot180;
|
915 |
break;
|
916 |
case 270: |
917 |
s->dma_ch[0].redraw = pxa2xx_lcdc_dma0_redraw_rot270;
|
918 |
break;
|
919 |
} |
920 |
|
921 |
s->orientation = angle; |
922 |
s->xres = s->yres = -1;
|
923 |
pxa2xx_lcdc_resize(s); |
924 |
} |
925 |
|
926 |
static const VMStateDescription vmstate_dma_channel = { |
927 |
.name = "dma_channel",
|
928 |
.version_id = 0,
|
929 |
.minimum_version_id = 0,
|
930 |
.minimum_version_id_old = 0,
|
931 |
.fields = (VMStateField[]) { |
932 |
VMSTATE_UINT32(branch, struct DMAChannel),
|
933 |
VMSTATE_UINT8(up, struct DMAChannel),
|
934 |
VMSTATE_BUFFER(pbuffer, struct DMAChannel),
|
935 |
VMSTATE_UINT32(descriptor, struct DMAChannel),
|
936 |
VMSTATE_UINT32(source, struct DMAChannel),
|
937 |
VMSTATE_UINT32(id, struct DMAChannel),
|
938 |
VMSTATE_UINT32(command, struct DMAChannel),
|
939 |
VMSTATE_END_OF_LIST() |
940 |
} |
941 |
}; |
942 |
|
943 |
static int pxa2xx_lcdc_post_load(void *opaque, int version_id) |
944 |
{ |
945 |
PXA2xxLCDState *s = opaque; |
946 |
|
947 |
s->bpp = LCCR3_BPP(s->control[3]);
|
948 |
s->xres = s->yres = s->pal_for = -1;
|
949 |
|
950 |
return 0; |
951 |
} |
952 |
|
953 |
static const VMStateDescription vmstate_pxa2xx_lcdc = { |
954 |
.name = "pxa2xx_lcdc",
|
955 |
.version_id = 0,
|
956 |
.minimum_version_id = 0,
|
957 |
.minimum_version_id_old = 0,
|
958 |
.post_load = pxa2xx_lcdc_post_load, |
959 |
.fields = (VMStateField[]) { |
960 |
VMSTATE_INT32(irqlevel, PXA2xxLCDState), |
961 |
VMSTATE_INT32(transp, PXA2xxLCDState), |
962 |
VMSTATE_UINT32_ARRAY(control, PXA2xxLCDState, 6),
|
963 |
VMSTATE_UINT32_ARRAY(status, PXA2xxLCDState, 2),
|
964 |
VMSTATE_UINT32_ARRAY(ovl1c, PXA2xxLCDState, 2),
|
965 |
VMSTATE_UINT32_ARRAY(ovl2c, PXA2xxLCDState, 2),
|
966 |
VMSTATE_UINT32(ccr, PXA2xxLCDState), |
967 |
VMSTATE_UINT32(cmdcr, PXA2xxLCDState), |
968 |
VMSTATE_UINT32(trgbr, PXA2xxLCDState), |
969 |
VMSTATE_UINT32(tcr, PXA2xxLCDState), |
970 |
VMSTATE_UINT32(liidr, PXA2xxLCDState), |
971 |
VMSTATE_UINT8(bscntr, PXA2xxLCDState), |
972 |
VMSTATE_STRUCT_ARRAY(dma_ch, PXA2xxLCDState, 7, 0, |
973 |
vmstate_dma_channel, struct DMAChannel),
|
974 |
VMSTATE_END_OF_LIST() |
975 |
} |
976 |
}; |
977 |
|
978 |
#define BITS 8 |
979 |
#include "pxa2xx_template.h" |
980 |
#define BITS 15 |
981 |
#include "pxa2xx_template.h" |
982 |
#define BITS 16 |
983 |
#include "pxa2xx_template.h" |
984 |
#define BITS 24 |
985 |
#include "pxa2xx_template.h" |
986 |
#define BITS 32 |
987 |
#include "pxa2xx_template.h" |
988 |
|
989 |
PXA2xxLCDState *pxa2xx_lcdc_init(MemoryRegion *sysmem, |
990 |
target_phys_addr_t base, qemu_irq irq) |
991 |
{ |
992 |
PXA2xxLCDState *s; |
993 |
|
994 |
s = (PXA2xxLCDState *) g_malloc0(sizeof(PXA2xxLCDState));
|
995 |
s->invalidated = 1;
|
996 |
s->irq = irq; |
997 |
s->sysmem = sysmem; |
998 |
|
999 |
pxa2xx_lcdc_orientation(s, graphic_rotate); |
1000 |
|
1001 |
memory_region_init_io(&s->iomem, &pxa2xx_lcdc_ops, s, |
1002 |
"pxa2xx-lcd-controller", 0x00100000); |
1003 |
memory_region_add_subregion(sysmem, base, &s->iomem); |
1004 |
|
1005 |
s->ds = graphic_console_init(pxa2xx_update_display, |
1006 |
pxa2xx_invalidate_display, |
1007 |
NULL, NULL, s); |
1008 |
|
1009 |
switch (ds_get_bits_per_pixel(s->ds)) {
|
1010 |
case 0: |
1011 |
s->dest_width = 0;
|
1012 |
break;
|
1013 |
case 8: |
1014 |
s->line_fn[0] = pxa2xx_draw_fn_8;
|
1015 |
s->line_fn[1] = pxa2xx_draw_fn_8t;
|
1016 |
s->dest_width = 1;
|
1017 |
break;
|
1018 |
case 15: |
1019 |
s->line_fn[0] = pxa2xx_draw_fn_15;
|
1020 |
s->line_fn[1] = pxa2xx_draw_fn_15t;
|
1021 |
s->dest_width = 2;
|
1022 |
break;
|
1023 |
case 16: |
1024 |
s->line_fn[0] = pxa2xx_draw_fn_16;
|
1025 |
s->line_fn[1] = pxa2xx_draw_fn_16t;
|
1026 |
s->dest_width = 2;
|
1027 |
break;
|
1028 |
case 24: |
1029 |
s->line_fn[0] = pxa2xx_draw_fn_24;
|
1030 |
s->line_fn[1] = pxa2xx_draw_fn_24t;
|
1031 |
s->dest_width = 3;
|
1032 |
break;
|
1033 |
case 32: |
1034 |
s->line_fn[0] = pxa2xx_draw_fn_32;
|
1035 |
s->line_fn[1] = pxa2xx_draw_fn_32t;
|
1036 |
s->dest_width = 4;
|
1037 |
break;
|
1038 |
default:
|
1039 |
fprintf(stderr, "%s: Bad color depth\n", __FUNCTION__);
|
1040 |
exit(1);
|
1041 |
} |
1042 |
|
1043 |
vmstate_register(NULL, 0, &vmstate_pxa2xx_lcdc, s); |
1044 |
|
1045 |
return s;
|
1046 |
} |
1047 |
|
1048 |
void pxa2xx_lcd_vsync_notifier(PXA2xxLCDState *s, qemu_irq handler)
|
1049 |
{ |
1050 |
s->vsync_cb = handler; |
1051 |
} |