diff options
Diffstat (limited to 'src/hw/display/pxa2xx_lcd.c')
| -rw-r--r-- | src/hw/display/pxa2xx_lcd.c | 1064 |
1 files changed, 1064 insertions, 0 deletions
diff --git a/src/hw/display/pxa2xx_lcd.c b/src/hw/display/pxa2xx_lcd.c new file mode 100644 index 0000000..494700d --- /dev/null +++ b/src/hw/display/pxa2xx_lcd.c @@ -0,0 +1,1064 @@ +/* + * 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/hw.h" +#include "ui/console.h" +#include "hw/arm/pxa.h" +#include "ui/pixel_ops.h" +/* FIXME: For graphic_rotate. Should probably be done in common code. */ +#include "sysemu/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; + MemoryRegionSection fbsection; + qemu_irq irq; + int irqlevel; + + int invalidated; + QemuConsole *con; + 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; +} + +/* 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, &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) +{ + DisplaySurface *surface = qemu_console_surface(s->con); + 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 = *(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 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 & 0xfc0000) >> 16; + g = (*(uint32_t *) src & 0x00fc00) >> 8; + b = (*(uint32_t *) src & 0x0000fc); + } + 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 (surface_bits_per_pixel(surface)) { + 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) +{ + DisplaySurface *surface = qemu_console_surface(s->con); + 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; + if (s->invalidated) { + framebuffer_update_memory_section(&s->fbsection, s->sysmem, + addr, s->yres, src_width); + } + framebuffer_update_display(surface, &s->fbsection, 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) +{ + DisplaySurface *surface = qemu_console_surface(s->con); + 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; + if (s->invalidated) { + framebuffer_update_memory_section(&s->fbsection, s->sysmem, + addr, s->yres, src_width); + } + framebuffer_update_display(surface, &s->fbsection, 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) +{ + DisplaySurface *surface = qemu_console_surface(s->con); + 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; + if (s->invalidated) { + framebuffer_update_memory_section(&s->fbsection, s->sysmem, + addr, s->yres, src_width); + } + framebuffer_update_display(surface, &s->fbsection, 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) +{ + DisplaySurface *surface = qemu_console_surface(s->con); + 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; + if (s->invalidated) { + framebuffer_update_memory_section(&s->fbsection, s->sysmem, + addr, s->yres, src_width); + } + framebuffer_update_display(surface, &s->fbsection, 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->con, height, width); + } else { + qemu_console_resize(s->con, 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_gfx_update(s->con, 0, miny, s->xres, maxy - miny + 1); + break; + case 90: + dpy_gfx_update(s->con, miny, 0, maxy - miny + 1, s->xres); + break; + case 180: + maxy = s->yres - maxy - 1; + miny = s->yres - miny - 1; + dpy_gfx_update(s->con, 0, maxy, s->xres, miny - maxy + 1); + break; + case 270: + maxy = s->yres - maxy - 1; + miny = s->yres - miny - 1; + dpy_gfx_update(s->con, 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, + .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, + .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" + +static const GraphicHwOps pxa2xx_ops = { + .invalidate = pxa2xx_invalidate_display, + .gfx_update = pxa2xx_update_display, +}; + +PXA2xxLCDState *pxa2xx_lcdc_init(MemoryRegion *sysmem, + hwaddr base, qemu_irq irq) +{ + PXA2xxLCDState *s; + DisplaySurface *surface; + + 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, NULL, &pxa2xx_lcdc_ops, s, + "pxa2xx-lcd-controller", 0x00100000); + memory_region_add_subregion(sysmem, base, &s->iomem); + + s->con = graphic_console_init(NULL, 0, &pxa2xx_ops, s); + surface = qemu_console_surface(s->con); + + switch (surface_bits_per_pixel(surface)) { + 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; +} |
