| /* |
| * Intel XScale PXA255/270 LCDC emulation. |
| * |
| * Copyright (c) 2006 Openedhand Ltd. |
| * Written by Andrzej Zaborowski <balrog@zabor.org> |
| * |
| * This code is licensed under the GPLv2. |
| * |
| * Contributions after 2012-01-13 are licensed under the terms of the |
| * GNU GPL, version 2 or (at your option) any later version. |
| */ |
| |
| #include "hw.h" |
| #include "console.h" |
| #include "pxa.h" |
| #include "pixel_ops.h" |
| /* FIXME: For graphic_rotate. Should probably be done in common code. */ |
| #include "sysemu.h" |
| #include "framebuffer.h" |
| |
| struct DMAChannel { |
| uint32_t branch; |
| uint8_t up; |
| uint8_t palette[1024]; |
| uint8_t pbuffer[1024]; |
| void (*redraw)(PXA2xxLCDState *s, hwaddr addr, |
| int *miny, int *maxy); |
| |
| uint32_t descriptor; |
| uint32_t source; |
| uint32_t id; |
| uint32_t command; |
| }; |
| |
| struct PXA2xxLCDState { |
| MemoryRegion *sysmem; |
| MemoryRegion iomem; |
| qemu_irq irq; |
| int irqlevel; |
| |
| int invalidated; |
| DisplayState *ds; |
| drawfn *line_fn[2]; |
| int dest_width; |
| int xres, yres; |
| int pal_for; |
| int transp; |
| enum { |
| pxa_lcdc_2bpp = 1, |
| pxa_lcdc_4bpp = 2, |
| pxa_lcdc_8bpp = 3, |
| pxa_lcdc_16bpp = 4, |
| pxa_lcdc_18bpp = 5, |
| pxa_lcdc_18pbpp = 6, |
| pxa_lcdc_19bpp = 7, |
| pxa_lcdc_19pbpp = 8, |
| pxa_lcdc_24bpp = 9, |
| pxa_lcdc_25bpp = 10, |
| } bpp; |
| |
| uint32_t control[6]; |
| uint32_t status[2]; |
| uint32_t ovl1c[2]; |
| uint32_t ovl2c[2]; |
| uint32_t ccr; |
| uint32_t cmdcr; |
| uint32_t trgbr; |
| uint32_t tcr; |
| uint32_t liidr; |
| uint8_t bscntr; |
| |
| struct DMAChannel dma_ch[7]; |
| |
| qemu_irq vsync_cb; |
| int orientation; |
| }; |
| |
| typedef struct QEMU_PACKED { |
| uint32_t fdaddr; |
| uint32_t fsaddr; |
| uint32_t fidr; |
| uint32_t ldcmd; |
| } PXAFrameDescriptor; |
| |
| #define LCCR0 0x000 /* LCD Controller Control register 0 */ |
| #define LCCR1 0x004 /* LCD Controller Control register 1 */ |
| #define LCCR2 0x008 /* LCD Controller Control register 2 */ |
| #define LCCR3 0x00c /* LCD Controller Control register 3 */ |
| #define LCCR4 0x010 /* LCD Controller Control register 4 */ |
| #define LCCR5 0x014 /* LCD Controller Control register 5 */ |
| |
| #define FBR0 0x020 /* DMA Channel 0 Frame Branch register */ |
| #define FBR1 0x024 /* DMA Channel 1 Frame Branch register */ |
| #define FBR2 0x028 /* DMA Channel 2 Frame Branch register */ |
| #define FBR3 0x02c /* DMA Channel 3 Frame Branch register */ |
| #define FBR4 0x030 /* DMA Channel 4 Frame Branch register */ |
| #define FBR5 0x110 /* DMA Channel 5 Frame Branch register */ |
| #define FBR6 0x114 /* DMA Channel 6 Frame Branch register */ |
| |
| #define LCSR1 0x034 /* LCD Controller Status register 1 */ |
| #define LCSR0 0x038 /* LCD Controller Status register 0 */ |
| #define LIIDR 0x03c /* LCD Controller Interrupt ID register */ |
| |
| #define TRGBR 0x040 /* TMED RGB Seed register */ |
| #define TCR 0x044 /* TMED Control register */ |
| |
| #define OVL1C1 0x050 /* Overlay 1 Control register 1 */ |
| #define OVL1C2 0x060 /* Overlay 1 Control register 2 */ |
| #define OVL2C1 0x070 /* Overlay 2 Control register 1 */ |
| #define OVL2C2 0x080 /* Overlay 2 Control register 2 */ |
| #define CCR 0x090 /* Cursor Control register */ |
| |
| #define CMDCR 0x100 /* Command Control register */ |
| #define PRSR 0x104 /* Panel Read Status register */ |
| |
| #define PXA_LCDDMA_CHANS 7 |
| #define DMA_FDADR 0x00 /* Frame Descriptor Address register */ |
| #define DMA_FSADR 0x04 /* Frame Source Address register */ |
| #define DMA_FIDR 0x08 /* Frame ID register */ |
| #define DMA_LDCMD 0x0c /* Command register */ |
| |
| /* LCD Buffer Strength Control register */ |
| #define BSCNTR 0x04000054 |
| |
| /* Bitfield masks */ |
| #define LCCR0_ENB (1 << 0) |
| #define LCCR0_CMS (1 << 1) |
| #define LCCR0_SDS (1 << 2) |
| #define LCCR0_LDM (1 << 3) |
| #define LCCR0_SOFM0 (1 << 4) |
| #define LCCR0_IUM (1 << 5) |
| #define LCCR0_EOFM0 (1 << 6) |
| #define LCCR0_PAS (1 << 7) |
| #define LCCR0_DPD (1 << 9) |
| #define LCCR0_DIS (1 << 10) |
| #define LCCR0_QDM (1 << 11) |
| #define LCCR0_PDD (0xff << 12) |
| #define LCCR0_BSM0 (1 << 20) |
| #define LCCR0_OUM (1 << 21) |
| #define LCCR0_LCDT (1 << 22) |
| #define LCCR0_RDSTM (1 << 23) |
| #define LCCR0_CMDIM (1 << 24) |
| #define LCCR0_OUC (1 << 25) |
| #define LCCR0_LDDALT (1 << 26) |
| #define LCCR1_PPL(x) ((x) & 0x3ff) |
| #define LCCR2_LPP(x) ((x) & 0x3ff) |
| #define LCCR3_API (15 << 16) |
| #define LCCR3_BPP(x) ((((x) >> 24) & 7) | (((x) >> 26) & 8)) |
| #define LCCR3_PDFOR(x) (((x) >> 30) & 3) |
| #define LCCR4_K1(x) (((x) >> 0) & 7) |
| #define LCCR4_K2(x) (((x) >> 3) & 7) |
| #define LCCR4_K3(x) (((x) >> 6) & 7) |
| #define LCCR4_PALFOR(x) (((x) >> 15) & 3) |
| #define LCCR5_SOFM(ch) (1 << (ch - 1)) |
| #define LCCR5_EOFM(ch) (1 << (ch + 7)) |
| #define LCCR5_BSM(ch) (1 << (ch + 15)) |
| #define LCCR5_IUM(ch) (1 << (ch + 23)) |
| #define OVLC1_EN (1 << 31) |
| #define CCR_CEN (1 << 31) |
| #define FBR_BRA (1 << 0) |
| #define FBR_BINT (1 << 1) |
| #define FBR_SRCADDR (0xfffffff << 4) |
| #define LCSR0_LDD (1 << 0) |
| #define LCSR0_SOF0 (1 << 1) |
| #define LCSR0_BER (1 << 2) |
| #define LCSR0_ABC (1 << 3) |
| #define LCSR0_IU0 (1 << 4) |
| #define LCSR0_IU1 (1 << 5) |
| #define LCSR0_OU (1 << 6) |
| #define LCSR0_QD (1 << 7) |
| #define LCSR0_EOF0 (1 << 8) |
| #define LCSR0_BS0 (1 << 9) |
| #define LCSR0_SINT (1 << 10) |
| #define LCSR0_RDST (1 << 11) |
| #define LCSR0_CMDINT (1 << 12) |
| #define LCSR0_BERCH(x) (((x) & 7) << 28) |
| #define LCSR1_SOF(ch) (1 << (ch - 1)) |
| #define LCSR1_EOF(ch) (1 << (ch + 7)) |
| #define LCSR1_BS(ch) (1 << (ch + 15)) |
| #define LCSR1_IU(ch) (1 << (ch + 23)) |
| #define LDCMD_LENGTH(x) ((x) & 0x001ffffc) |
| #define LDCMD_EOFINT (1 << 21) |
| #define LDCMD_SOFINT (1 << 22) |
| #define LDCMD_PAL (1 << 26) |
| |
| /* Route internal interrupt lines to the global IC */ |
| static void pxa2xx_lcdc_int_update(PXA2xxLCDState *s) |
| { |
| int level = 0; |
| level |= (s->status[0] & LCSR0_LDD) && !(s->control[0] & LCCR0_LDM); |
| level |= (s->status[0] & LCSR0_SOF0) && !(s->control[0] & LCCR0_SOFM0); |
| level |= (s->status[0] & LCSR0_IU0) && !(s->control[0] & LCCR0_IUM); |
| level |= (s->status[0] & LCSR0_IU1) && !(s->control[5] & LCCR5_IUM(1)); |
| level |= (s->status[0] & LCSR0_OU) && !(s->control[0] & LCCR0_OUM); |
| level |= (s->status[0] & LCSR0_QD) && !(s->control[0] & LCCR0_QDM); |
| level |= (s->status[0] & LCSR0_EOF0) && !(s->control[0] & LCCR0_EOFM0); |
| level |= (s->status[0] & LCSR0_BS0) && !(s->control[0] & LCCR0_BSM0); |
| level |= (s->status[0] & LCSR0_RDST) && !(s->control[0] & LCCR0_RDSTM); |
| level |= (s->status[0] & LCSR0_CMDINT) && !(s->control[0] & LCCR0_CMDIM); |
| level |= (s->status[1] & ~s->control[5]); |
| |
| qemu_set_irq(s->irq, !!level); |
| s->irqlevel = level; |
| } |
| |
| /* Set Branch Status interrupt high and poke associated registers */ |
| static inline void pxa2xx_dma_bs_set(PXA2xxLCDState *s, int ch) |
| { |
| int unmasked; |
| if (ch == 0) { |
| s->status[0] |= LCSR0_BS0; |
| unmasked = !(s->control[0] & LCCR0_BSM0); |
| } else { |
| s->status[1] |= LCSR1_BS(ch); |
| unmasked = !(s->control[5] & LCCR5_BSM(ch)); |
| } |
| |
| if (unmasked) { |
| if (s->irqlevel) |
| s->status[0] |= LCSR0_SINT; |
| else |
| s->liidr = s->dma_ch[ch].id; |
| } |
| } |
| |
| /* Set Start Of Frame Status interrupt high and poke associated registers */ |
| static inline void pxa2xx_dma_sof_set(PXA2xxLCDState *s, int ch) |
| { |
| int unmasked; |
| if (!(s->dma_ch[ch].command & LDCMD_SOFINT)) |
| return; |
| |
| if (ch == 0) { |
| s->status[0] |= LCSR0_SOF0; |
| unmasked = !(s->control[0] & LCCR0_SOFM0); |
| } else { |
| s->status[1] |= LCSR1_SOF(ch); |
| unmasked = !(s->control[5] & LCCR5_SOFM(ch)); |
| } |
| |
| if (unmasked) { |
| if (s->irqlevel) |
| s->status[0] |= LCSR0_SINT; |
| else |
| s->liidr = s->dma_ch[ch].id; |
| } |
| } |
| |
| /* Set End Of Frame Status interrupt high and poke associated registers */ |
| static inline void pxa2xx_dma_eof_set(PXA2xxLCDState *s, int ch) |
| { |
| int unmasked; |
| if (!(s->dma_ch[ch].command & LDCMD_EOFINT)) |
| return; |
| |
| if (ch == 0) { |
| s->status[0] |= LCSR0_EOF0; |
| unmasked = !(s->control[0] & LCCR0_EOFM0); |
| } else { |
| s->status[1] |= LCSR1_EOF(ch); |
| unmasked = !(s->control[5] & LCCR5_EOFM(ch)); |
| } |
| |
| if (unmasked) { |
| if (s->irqlevel) |
| s->status[0] |= LCSR0_SINT; |
| else |
| s->liidr = s->dma_ch[ch].id; |
| } |
| } |
| |
| /* Set Bus Error Status interrupt high and poke associated registers */ |
| static inline void pxa2xx_dma_ber_set(PXA2xxLCDState *s, int ch) |
| { |
| s->status[0] |= LCSR0_BERCH(ch) | LCSR0_BER; |
| if (s->irqlevel) |
| s->status[0] |= LCSR0_SINT; |
| else |
| s->liidr = s->dma_ch[ch].id; |
| } |
| |
| /* Set Read Status interrupt high and poke associated registers */ |
| static inline void pxa2xx_dma_rdst_set(PXA2xxLCDState *s) |
| { |
| s->status[0] |= LCSR0_RDST; |
| if (s->irqlevel && !(s->control[0] & LCCR0_RDSTM)) |
| s->status[0] |= LCSR0_SINT; |
| } |
| |
| /* Load new Frame Descriptors from DMA */ |
| static void pxa2xx_descriptor_load(PXA2xxLCDState *s) |
| { |
| PXAFrameDescriptor desc; |
| hwaddr descptr; |
| int i; |
| |
| for (i = 0; i < PXA_LCDDMA_CHANS; i ++) { |
| s->dma_ch[i].source = 0; |
| |
| if (!s->dma_ch[i].up) |
| continue; |
| |
| if (s->dma_ch[i].branch & FBR_BRA) { |
| descptr = s->dma_ch[i].branch & FBR_SRCADDR; |
| if (s->dma_ch[i].branch & FBR_BINT) |
| pxa2xx_dma_bs_set(s, i); |
| s->dma_ch[i].branch &= ~FBR_BRA; |
| } else |
| descptr = s->dma_ch[i].descriptor; |
| |
| if (!((descptr >= PXA2XX_SDRAM_BASE && descptr + |
| sizeof(desc) <= PXA2XX_SDRAM_BASE + ram_size) || |
| (descptr >= PXA2XX_INTERNAL_BASE && descptr + sizeof(desc) <= |
| PXA2XX_INTERNAL_BASE + PXA2XX_INTERNAL_SIZE))) { |
| continue; |
| } |
| |
| cpu_physical_memory_read(descptr, (void *)&desc, sizeof(desc)); |
| s->dma_ch[i].descriptor = tswap32(desc.fdaddr); |
| s->dma_ch[i].source = tswap32(desc.fsaddr); |
| s->dma_ch[i].id = tswap32(desc.fidr); |
| s->dma_ch[i].command = tswap32(desc.ldcmd); |
| } |
| } |
| |
| static uint64_t pxa2xx_lcdc_read(void *opaque, hwaddr offset, |
| unsigned size) |
| { |
| PXA2xxLCDState *s = (PXA2xxLCDState *) opaque; |
| int ch; |
| |
| switch (offset) { |
| case LCCR0: |
| return s->control[0]; |
| case LCCR1: |
| return s->control[1]; |
| case LCCR2: |
| return s->control[2]; |
| case LCCR3: |
| return s->control[3]; |
| case LCCR4: |
| return s->control[4]; |
| case LCCR5: |
| return s->control[5]; |
| |
| case OVL1C1: |
| return s->ovl1c[0]; |
| case OVL1C2: |
| return s->ovl1c[1]; |
| case OVL2C1: |
| return s->ovl2c[0]; |
| case OVL2C2: |
| return s->ovl2c[1]; |
| |
| case CCR: |
| return s->ccr; |
| |
| case CMDCR: |
| return s->cmdcr; |
| |
| case TRGBR: |
| return s->trgbr; |
| case TCR: |
| return s->tcr; |
| |
| case 0x200 ... 0x1000: /* DMA per-channel registers */ |
| ch = (offset - 0x200) >> 4; |
| if (!(ch >= 0 && ch < PXA_LCDDMA_CHANS)) |
| goto fail; |
| |
| switch (offset & 0xf) { |
| case DMA_FDADR: |
| return s->dma_ch[ch].descriptor; |
| case DMA_FSADR: |
| return s->dma_ch[ch].source; |
| case DMA_FIDR: |
| return s->dma_ch[ch].id; |
| case DMA_LDCMD: |
| return s->dma_ch[ch].command; |
| default: |
| goto fail; |
| } |
| |
| case FBR0: |
| return s->dma_ch[0].branch; |
| case FBR1: |
| return s->dma_ch[1].branch; |
| case FBR2: |
| return s->dma_ch[2].branch; |
| case FBR3: |
| return s->dma_ch[3].branch; |
| case FBR4: |
| return s->dma_ch[4].branch; |
| case FBR5: |
| return s->dma_ch[5].branch; |
| case FBR6: |
| return s->dma_ch[6].branch; |
| |
| case BSCNTR: |
| return s->bscntr; |
| |
| case PRSR: |
| return 0; |
| |
| case LCSR0: |
| return s->status[0]; |
| case LCSR1: |
| return s->status[1]; |
| case LIIDR: |
| return s->liidr; |
| |
| default: |
| fail: |
| hw_error("%s: Bad offset " REG_FMT "\n", __FUNCTION__, offset); |
| } |
| |
| return 0; |
| } |
| |
| static void pxa2xx_lcdc_write(void *opaque, hwaddr offset, |
| uint64_t value, unsigned size) |
| { |
| PXA2xxLCDState *s = (PXA2xxLCDState *) opaque; |
| int ch; |
| |
| switch (offset) { |
| case LCCR0: |
| /* ACK Quick Disable done */ |
| if ((s->control[0] & LCCR0_ENB) && !(value & LCCR0_ENB)) |
| s->status[0] |= LCSR0_QD; |
| |
| if (!(s->control[0] & LCCR0_LCDT) && (value & LCCR0_LCDT)) |
| printf("%s: internal frame buffer unsupported\n", __FUNCTION__); |
| |
| if ((s->control[3] & LCCR3_API) && |
| (value & LCCR0_ENB) && !(value & LCCR0_LCDT)) |
| s->status[0] |= LCSR0_ABC; |
| |
| s->control[0] = value & 0x07ffffff; |
| pxa2xx_lcdc_int_update(s); |
| |
| s->dma_ch[0].up = !!(value & LCCR0_ENB); |
| s->dma_ch[1].up = (s->ovl1c[0] & OVLC1_EN) || (value & LCCR0_SDS); |
| break; |
| |
| case LCCR1: |
| s->control[1] = value; |
| break; |
| |
| case LCCR2: |
| s->control[2] = value; |
| break; |
| |
| case LCCR3: |
| s->control[3] = value & 0xefffffff; |
| s->bpp = LCCR3_BPP(value); |
| break; |
| |
| case LCCR4: |
| s->control[4] = value & 0x83ff81ff; |
| break; |
| |
| case LCCR5: |
| s->control[5] = value & 0x3f3f3f3f; |
| break; |
| |
| case OVL1C1: |
| if (!(s->ovl1c[0] & OVLC1_EN) && (value & OVLC1_EN)) |
| printf("%s: Overlay 1 not supported\n", __FUNCTION__); |
| |
| s->ovl1c[0] = value & 0x80ffffff; |
| s->dma_ch[1].up = (value & OVLC1_EN) || (s->control[0] & LCCR0_SDS); |
| break; |
| |
| case OVL1C2: |
| s->ovl1c[1] = value & 0x000fffff; |
| break; |
| |
| case OVL2C1: |
| if (!(s->ovl2c[0] & OVLC1_EN) && (value & OVLC1_EN)) |
| printf("%s: Overlay 2 not supported\n", __FUNCTION__); |
| |
| s->ovl2c[0] = value & 0x80ffffff; |
| s->dma_ch[2].up = !!(value & OVLC1_EN); |
| s->dma_ch[3].up = !!(value & OVLC1_EN); |
| s->dma_ch[4].up = !!(value & OVLC1_EN); |
| break; |
| |
| case OVL2C2: |
| s->ovl2c[1] = value & 0x007fffff; |
| break; |
| |
| case CCR: |
| if (!(s->ccr & CCR_CEN) && (value & CCR_CEN)) |
| printf("%s: Hardware cursor unimplemented\n", __FUNCTION__); |
| |
| s->ccr = value & 0x81ffffe7; |
| s->dma_ch[5].up = !!(value & CCR_CEN); |
| break; |
| |
| case CMDCR: |
| s->cmdcr = value & 0xff; |
| break; |
| |
| case TRGBR: |
| s->trgbr = value & 0x00ffffff; |
| break; |
| |
| case TCR: |
| s->tcr = value & 0x7fff; |
| break; |
| |
| case 0x200 ... 0x1000: /* DMA per-channel registers */ |
| ch = (offset - 0x200) >> 4; |
| if (!(ch >= 0 && ch < PXA_LCDDMA_CHANS)) |
| goto fail; |
| |
| switch (offset & 0xf) { |
| case DMA_FDADR: |
| s->dma_ch[ch].descriptor = value & 0xfffffff0; |
| break; |
| |
| default: |
| goto fail; |
| } |
| break; |
| |
| case FBR0: |
| s->dma_ch[0].branch = value & 0xfffffff3; |
| break; |
| case FBR1: |
| s->dma_ch[1].branch = value & 0xfffffff3; |
| break; |
| case FBR2: |
| s->dma_ch[2].branch = value & 0xfffffff3; |
| break; |
| case FBR3: |
| s->dma_ch[3].branch = value & 0xfffffff3; |
| break; |
| case FBR4: |
| s->dma_ch[4].branch = value & 0xfffffff3; |
| break; |
| case FBR5: |
| s->dma_ch[5].branch = value & 0xfffffff3; |
| break; |
| case FBR6: |
| s->dma_ch[6].branch = value & 0xfffffff3; |
| break; |
| |
| case BSCNTR: |
| s->bscntr = value & 0xf; |
| break; |
| |
| case PRSR: |
| break; |
| |
| case LCSR0: |
| s->status[0] &= ~(value & 0xfff); |
| if (value & LCSR0_BER) |
| s->status[0] &= ~LCSR0_BERCH(7); |
| break; |
| |
| case LCSR1: |
| s->status[1] &= ~(value & 0x3e3f3f); |
| break; |
| |
| default: |
| fail: |
| hw_error("%s: Bad offset " REG_FMT "\n", __FUNCTION__, offset); |
| } |
| } |
| |
| static const MemoryRegionOps pxa2xx_lcdc_ops = { |
| .read = pxa2xx_lcdc_read, |
| .write = pxa2xx_lcdc_write, |
| .endianness = DEVICE_NATIVE_ENDIAN, |
| }; |
| |
| /* Load new palette for a given DMA channel, convert to internal format */ |
| static void pxa2xx_palette_parse(PXA2xxLCDState *s, int ch, int bpp) |
| { |
| int i, n, format, r, g, b, alpha; |
| uint32_t *dest; |
| uint8_t *src; |
| s->pal_for = LCCR4_PALFOR(s->control[4]); |
| format = s->pal_for; |
| |
| switch (bpp) { |
| case pxa_lcdc_2bpp: |
| n = 4; |
| break; |
| case pxa_lcdc_4bpp: |
| n = 16; |
| break; |
| case pxa_lcdc_8bpp: |
| n = 256; |
| break; |
| default: |
| format = 0; |
| return; |
| } |
| |
| src = (uint8_t *) s->dma_ch[ch].pbuffer; |
| dest = (uint32_t *) s->dma_ch[ch].palette; |
| alpha = r = g = b = 0; |
| |
| for (i = 0; i < n; i ++) { |
| switch (format) { |
| case 0: /* 16 bpp, no transparency */ |
| alpha = 0; |
| if (s->control[0] & LCCR0_CMS) { |
| r = g = b = *(uint16_t *) src & 0xff; |
| } |
| else { |
| r = (*(uint16_t *) src & 0xf800) >> 8; |
| g = (*(uint16_t *) src & 0x07e0) >> 3; |
| b = (*(uint16_t *) src & 0x001f) << 3; |
| } |
| src += 2; |
| break; |
| case 1: /* 16 bpp plus transparency */ |
| alpha = *(uint16_t *) src & (1 << 24); |
| if (s->control[0] & LCCR0_CMS) |
| r = g = b = *(uint16_t *) src & 0xff; |
| else { |
| r = (*(uint16_t *) src & 0xf800) >> 8; |
| g = (*(uint16_t *) src & 0x07e0) >> 3; |
| b = (*(uint16_t *) src & 0x001f) << 3; |
| } |
| src += 2; |
| break; |
| case 2: /* 18 bpp plus transparency */ |
| alpha = *(uint32_t *) src & (1 << 24); |
| if (s->control[0] & LCCR0_CMS) |
| r = g = b = *(uint32_t *) src & 0xff; |
| else { |
| r = (*(uint32_t *) src & 0xf80000) >> 16; |
| g = (*(uint32_t *) src & 0x00fc00) >> 8; |
| b = (*(uint32_t *) src & 0x0000f8); |
| } |
| src += 4; |
| break; |
| case 3: /* 24 bpp plus transparency */ |
| alpha = *(uint32_t *) src & (1 << 24); |
| if (s->control[0] & LCCR0_CMS) |
| r = g = b = *(uint32_t *) src & 0xff; |
| else { |
| r = (*(uint32_t *) src & 0xff0000) >> 16; |
| g = (*(uint32_t *) src & 0x00ff00) >> 8; |
| b = (*(uint32_t *) src & 0x0000ff); |
| } |
| src += 4; |
| break; |
| } |
| switch (ds_get_bits_per_pixel(s->ds)) { |
| case 8: |
| *dest = rgb_to_pixel8(r, g, b) | alpha; |
| break; |
| case 15: |
| *dest = rgb_to_pixel15(r, g, b) | alpha; |
| break; |
| case 16: |
| *dest = rgb_to_pixel16(r, g, b) | alpha; |
| break; |
| case 24: |
| *dest = rgb_to_pixel24(r, g, b) | alpha; |
| break; |
| case 32: |
| *dest = rgb_to_pixel32(r, g, b) | alpha; |
| break; |
| } |
| dest ++; |
| } |
| } |
| |
| static void pxa2xx_lcdc_dma0_redraw_rot0(PXA2xxLCDState *s, |
| hwaddr addr, int *miny, int *maxy) |
| { |
| int src_width, dest_width; |
| drawfn fn = NULL; |
| if (s->dest_width) |
| fn = s->line_fn[s->transp][s->bpp]; |
| if (!fn) |
| return; |
| |
| src_width = (s->xres + 3) & ~3; /* Pad to a 4 pixels multiple */ |
| if (s->bpp == pxa_lcdc_19pbpp || s->bpp == pxa_lcdc_18pbpp) |
| src_width *= 3; |
| else if (s->bpp > pxa_lcdc_16bpp) |
| src_width *= 4; |
| else if (s->bpp > pxa_lcdc_8bpp) |
| src_width *= 2; |
| |
| dest_width = s->xres * s->dest_width; |
| *miny = 0; |
| framebuffer_update_display(s->ds, s->sysmem, |
| addr, s->xres, s->yres, |
| src_width, dest_width, s->dest_width, |
| s->invalidated, |
| fn, s->dma_ch[0].palette, miny, maxy); |
| } |
| |
| static void pxa2xx_lcdc_dma0_redraw_rot90(PXA2xxLCDState *s, |
| hwaddr addr, int *miny, int *maxy) |
| { |
| int src_width, dest_width; |
| drawfn fn = NULL; |
| if (s->dest_width) |
| fn = s->line_fn[s->transp][s->bpp]; |
| if (!fn) |
| return; |
| |
| src_width = (s->xres + 3) & ~3; /* Pad to a 4 pixels multiple */ |
| if (s->bpp == pxa_lcdc_19pbpp || s->bpp == pxa_lcdc_18pbpp) |
| src_width *= 3; |
| else if (s->bpp > pxa_lcdc_16bpp) |
| src_width *= 4; |
| else if (s->bpp > pxa_lcdc_8bpp) |
| src_width *= 2; |
| |
| dest_width = s->yres * s->dest_width; |
| *miny = 0; |
| framebuffer_update_display(s->ds, s->sysmem, |
| addr, s->xres, s->yres, |
| src_width, s->dest_width, -dest_width, |
| s->invalidated, |
| fn, s->dma_ch[0].palette, |
| miny, maxy); |
| } |
| |
| static void pxa2xx_lcdc_dma0_redraw_rot180(PXA2xxLCDState *s, |
| hwaddr addr, int *miny, int *maxy) |
| { |
| int src_width, dest_width; |
| drawfn fn = NULL; |
| if (s->dest_width) { |
| fn = s->line_fn[s->transp][s->bpp]; |
| } |
| if (!fn) { |
| return; |
| } |
| |
| src_width = (s->xres + 3) & ~3; /* Pad to a 4 pixels multiple */ |
| if (s->bpp == pxa_lcdc_19pbpp || s->bpp == pxa_lcdc_18pbpp) { |
| src_width *= 3; |
| } else if (s->bpp > pxa_lcdc_16bpp) { |
| src_width *= 4; |
| } else if (s->bpp > pxa_lcdc_8bpp) { |
| src_width *= 2; |
| } |
| |
| dest_width = s->xres * s->dest_width; |
| *miny = 0; |
| framebuffer_update_display(s->ds, s->sysmem, |
| addr, s->xres, s->yres, |
| src_width, -dest_width, -s->dest_width, |
| s->invalidated, |
| fn, s->dma_ch[0].palette, miny, maxy); |
| } |
| |
| static void pxa2xx_lcdc_dma0_redraw_rot270(PXA2xxLCDState *s, |
| hwaddr addr, int *miny, int *maxy) |
| { |
| int src_width, dest_width; |
| drawfn fn = NULL; |
| if (s->dest_width) { |
| fn = s->line_fn[s->transp][s->bpp]; |
| } |
| if (!fn) { |
| return; |
| } |
| |
| src_width = (s->xres + 3) & ~3; /* Pad to a 4 pixels multiple */ |
| if (s->bpp == pxa_lcdc_19pbpp || s->bpp == pxa_lcdc_18pbpp) { |
| src_width *= 3; |
| } else if (s->bpp > pxa_lcdc_16bpp) { |
| src_width *= 4; |
| } else if (s->bpp > pxa_lcdc_8bpp) { |
| src_width *= 2; |
| } |
| |
| dest_width = s->yres * s->dest_width; |
| *miny = 0; |
| framebuffer_update_display(s->ds, s->sysmem, |
| addr, s->xres, s->yres, |
| src_width, -s->dest_width, dest_width, |
| s->invalidated, |
| fn, s->dma_ch[0].palette, |
| miny, maxy); |
| } |
| |
| static void pxa2xx_lcdc_resize(PXA2xxLCDState *s) |
| { |
| int width, height; |
| if (!(s->control[0] & LCCR0_ENB)) |
| return; |
| |
| width = LCCR1_PPL(s->control[1]) + 1; |
| height = LCCR2_LPP(s->control[2]) + 1; |
| |
| if (width != s->xres || height != s->yres) { |
| if (s->orientation == 90 || s->orientation == 270) { |
| qemu_console_resize(s->ds, height, width); |
| } else { |
| qemu_console_resize(s->ds, width, height); |
| } |
| s->invalidated = 1; |
| s->xres = width; |
| s->yres = height; |
| } |
| } |
| |
| static void pxa2xx_update_display(void *opaque) |
| { |
| PXA2xxLCDState *s = (PXA2xxLCDState *) opaque; |
| hwaddr fbptr; |
| int miny, maxy; |
| int ch; |
| if (!(s->control[0] & LCCR0_ENB)) |
| return; |
| |
| pxa2xx_descriptor_load(s); |
| |
| pxa2xx_lcdc_resize(s); |
| miny = s->yres; |
| maxy = 0; |
| s->transp = s->dma_ch[2].up || s->dma_ch[3].up; |
| /* Note: With overlay planes the order depends on LCCR0 bit 25. */ |
| for (ch = 0; ch < PXA_LCDDMA_CHANS; ch ++) |
| if (s->dma_ch[ch].up) { |
| if (!s->dma_ch[ch].source) { |
| pxa2xx_dma_ber_set(s, ch); |
| continue; |
| } |
| fbptr = s->dma_ch[ch].source; |
| if (!((fbptr >= PXA2XX_SDRAM_BASE && |
| fbptr <= PXA2XX_SDRAM_BASE + ram_size) || |
| (fbptr >= PXA2XX_INTERNAL_BASE && |
| fbptr <= PXA2XX_INTERNAL_BASE + PXA2XX_INTERNAL_SIZE))) { |
| pxa2xx_dma_ber_set(s, ch); |
| continue; |
| } |
| |
| if (s->dma_ch[ch].command & LDCMD_PAL) { |
| cpu_physical_memory_read(fbptr, s->dma_ch[ch].pbuffer, |
| MAX(LDCMD_LENGTH(s->dma_ch[ch].command), |
| sizeof(s->dma_ch[ch].pbuffer))); |
| pxa2xx_palette_parse(s, ch, s->bpp); |
| } else { |
| /* Do we need to reparse palette */ |
| if (LCCR4_PALFOR(s->control[4]) != s->pal_for) |
| pxa2xx_palette_parse(s, ch, s->bpp); |
| |
| /* ACK frame start */ |
| pxa2xx_dma_sof_set(s, ch); |
| |
| s->dma_ch[ch].redraw(s, fbptr, &miny, &maxy); |
| s->invalidated = 0; |
| |
| /* ACK frame completed */ |
| pxa2xx_dma_eof_set(s, ch); |
| } |
| } |
| |
| if (s->control[0] & LCCR0_DIS) { |
| /* ACK last frame completed */ |
| s->control[0] &= ~LCCR0_ENB; |
| s->status[0] |= LCSR0_LDD; |
| } |
| |
| if (miny >= 0) { |
| switch (s->orientation) { |
| case 0: |
| dpy_update(s->ds, 0, miny, s->xres, maxy - miny + 1); |
| break; |
| case 90: |
| dpy_update(s->ds, miny, 0, maxy - miny + 1, s->xres); |
| break; |
| case 180: |
| maxy = s->yres - maxy - 1; |
| miny = s->yres - miny - 1; |
| dpy_update(s->ds, 0, maxy, s->xres, miny - maxy + 1); |
| break; |
| case 270: |
| maxy = s->yres - maxy - 1; |
| miny = s->yres - miny - 1; |
| dpy_update(s->ds, maxy, 0, miny - maxy + 1, s->xres); |
| break; |
| } |
| } |
| pxa2xx_lcdc_int_update(s); |
| |
| qemu_irq_raise(s->vsync_cb); |
| } |
| |
| static void pxa2xx_invalidate_display(void *opaque) |
| { |
| PXA2xxLCDState *s = (PXA2xxLCDState *) opaque; |
| s->invalidated = 1; |
| } |
| |
| static void pxa2xx_lcdc_orientation(void *opaque, int angle) |
| { |
| PXA2xxLCDState *s = (PXA2xxLCDState *) opaque; |
| |
| switch (angle) { |
| case 0: |
| s->dma_ch[0].redraw = pxa2xx_lcdc_dma0_redraw_rot0; |
| break; |
| case 90: |
| s->dma_ch[0].redraw = pxa2xx_lcdc_dma0_redraw_rot90; |
| break; |
| case 180: |
| s->dma_ch[0].redraw = pxa2xx_lcdc_dma0_redraw_rot180; |
| break; |
| case 270: |
| s->dma_ch[0].redraw = pxa2xx_lcdc_dma0_redraw_rot270; |
| break; |
| } |
| |
| s->orientation = angle; |
| s->xres = s->yres = -1; |
| pxa2xx_lcdc_resize(s); |
| } |
| |
| static const VMStateDescription vmstate_dma_channel = { |
| .name = "dma_channel", |
| .version_id = 0, |
| .minimum_version_id = 0, |
| .minimum_version_id_old = 0, |
| .fields = (VMStateField[]) { |
| VMSTATE_UINT32(branch, struct DMAChannel), |
| VMSTATE_UINT8(up, struct DMAChannel), |
| VMSTATE_BUFFER(pbuffer, struct DMAChannel), |
| VMSTATE_UINT32(descriptor, struct DMAChannel), |
| VMSTATE_UINT32(source, struct DMAChannel), |
| VMSTATE_UINT32(id, struct DMAChannel), |
| VMSTATE_UINT32(command, struct DMAChannel), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static int pxa2xx_lcdc_post_load(void *opaque, int version_id) |
| { |
| PXA2xxLCDState *s = opaque; |
| |
| s->bpp = LCCR3_BPP(s->control[3]); |
| s->xres = s->yres = s->pal_for = -1; |
| |
| return 0; |
| } |
| |
| static const VMStateDescription vmstate_pxa2xx_lcdc = { |
| .name = "pxa2xx_lcdc", |
| .version_id = 0, |
| .minimum_version_id = 0, |
| .minimum_version_id_old = 0, |
| .post_load = pxa2xx_lcdc_post_load, |
| .fields = (VMStateField[]) { |
| VMSTATE_INT32(irqlevel, PXA2xxLCDState), |
| VMSTATE_INT32(transp, PXA2xxLCDState), |
| VMSTATE_UINT32_ARRAY(control, PXA2xxLCDState, 6), |
| VMSTATE_UINT32_ARRAY(status, PXA2xxLCDState, 2), |
| VMSTATE_UINT32_ARRAY(ovl1c, PXA2xxLCDState, 2), |
| VMSTATE_UINT32_ARRAY(ovl2c, PXA2xxLCDState, 2), |
| VMSTATE_UINT32(ccr, PXA2xxLCDState), |
| VMSTATE_UINT32(cmdcr, PXA2xxLCDState), |
| VMSTATE_UINT32(trgbr, PXA2xxLCDState), |
| VMSTATE_UINT32(tcr, PXA2xxLCDState), |
| VMSTATE_UINT32(liidr, PXA2xxLCDState), |
| VMSTATE_UINT8(bscntr, PXA2xxLCDState), |
| VMSTATE_STRUCT_ARRAY(dma_ch, PXA2xxLCDState, 7, 0, |
| vmstate_dma_channel, struct DMAChannel), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| #define BITS 8 |
| #include "pxa2xx_template.h" |
| #define BITS 15 |
| #include "pxa2xx_template.h" |
| #define BITS 16 |
| #include "pxa2xx_template.h" |
| #define BITS 24 |
| #include "pxa2xx_template.h" |
| #define BITS 32 |
| #include "pxa2xx_template.h" |
| |
| PXA2xxLCDState *pxa2xx_lcdc_init(MemoryRegion *sysmem, |
| hwaddr base, qemu_irq irq) |
| { |
| PXA2xxLCDState *s; |
| |
| s = (PXA2xxLCDState *) g_malloc0(sizeof(PXA2xxLCDState)); |
| s->invalidated = 1; |
| s->irq = irq; |
| s->sysmem = sysmem; |
| |
| pxa2xx_lcdc_orientation(s, graphic_rotate); |
| |
| memory_region_init_io(&s->iomem, &pxa2xx_lcdc_ops, s, |
| "pxa2xx-lcd-controller", 0x00100000); |
| memory_region_add_subregion(sysmem, base, &s->iomem); |
| |
| s->ds = graphic_console_init(pxa2xx_update_display, |
| pxa2xx_invalidate_display, |
| NULL, NULL, s); |
| |
| switch (ds_get_bits_per_pixel(s->ds)) { |
| case 0: |
| s->dest_width = 0; |
| break; |
| case 8: |
| s->line_fn[0] = pxa2xx_draw_fn_8; |
| s->line_fn[1] = pxa2xx_draw_fn_8t; |
| s->dest_width = 1; |
| break; |
| case 15: |
| s->line_fn[0] = pxa2xx_draw_fn_15; |
| s->line_fn[1] = pxa2xx_draw_fn_15t; |
| s->dest_width = 2; |
| break; |
| case 16: |
| s->line_fn[0] = pxa2xx_draw_fn_16; |
| s->line_fn[1] = pxa2xx_draw_fn_16t; |
| s->dest_width = 2; |
| break; |
| case 24: |
| s->line_fn[0] = pxa2xx_draw_fn_24; |
| s->line_fn[1] = pxa2xx_draw_fn_24t; |
| s->dest_width = 3; |
| break; |
| case 32: |
| s->line_fn[0] = pxa2xx_draw_fn_32; |
| s->line_fn[1] = pxa2xx_draw_fn_32t; |
| s->dest_width = 4; |
| break; |
| default: |
| fprintf(stderr, "%s: Bad color depth\n", __FUNCTION__); |
| exit(1); |
| } |
| |
| vmstate_register(NULL, 0, &vmstate_pxa2xx_lcdc, s); |
| |
| return s; |
| } |
| |
| void pxa2xx_lcd_vsync_notifier(PXA2xxLCDState *s, qemu_irq handler) |
| { |
| s->vsync_cb = handler; |
| } |
