diff options
Diffstat (limited to 'hw/syborg_fb.c')
| -rw-r--r-- | hw/syborg_fb.c | 554 |
1 files changed, 0 insertions, 554 deletions
diff --git a/hw/syborg_fb.c b/hw/syborg_fb.c deleted file mode 100644 index b87d7e6d10..0000000000 --- a/hw/syborg_fb.c +++ /dev/null @@ -1,554 +0,0 @@ -/* - * Syborg Framebuffer - * - * Copyright (c) 2009 CodeSourcery - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -#include "sysbus.h" -#include "console.h" -#include "syborg.h" -#include "framebuffer.h" - -//#define DEBUG_SYBORG_FB - -#ifdef DEBUG_SYBORG_FB -#define DPRINTF(fmt, ...) \ -do { printf("syborg_fb: " fmt , ## __VA_ARGS__); } while (0) -#define BADF(fmt, ...) \ -do { fprintf(stderr, "syborg_fb: error: " fmt , ## __VA_ARGS__); \ - exit(1);} while (0) -#else -#define DPRINTF(fmt, ...) do {} while(0) -#define BADF(fmt, ...) \ -do { fprintf(stderr, "syborg_fb: error: " fmt , ## __VA_ARGS__);} while (0) -#endif - -enum { - FB_ID = 0, - FB_BASE = 1, - FB_HEIGHT = 2, - FB_WIDTH = 3, - FB_ORIENTATION = 4, - FB_BLANK = 5, - FB_INT_MASK = 6, - FB_INTERRUPT_CAUSE = 7, - FB_BPP = 8, - FB_COLOR_ORDER = 9, - FB_BYTE_ORDER = 10, - FB_PIXEL_ORDER = 11, - FB_ROW_PITCH = 12, - FB_ENABLED = 13, - FB_PALETTE_START = 0x400 >> 2, - FB_PALETTE_END = FB_PALETTE_START+256-1, -}; - -#define FB_INT_VSYNC (1U << 0) -#define FB_INT_BASE_UPDATE_DONE (1U << 1) - -typedef struct { - SysBusDevice busdev; - MemoryRegion iomem; - DisplayState *ds; - /*QEMUConsole *console;*/ - uint32_t need_update : 1; - uint32_t need_int : 1; - uint32_t enabled : 1; - uint32_t int_status; - uint32_t int_enable; - qemu_irq irq; - - uint32_t base; - uint32_t pitch; - uint32_t rows; - uint32_t cols; - int blank; - int bpp; - int rgb; /* 0 = BGR, 1 = RGB */ - int endian; /* 0 = Little, 1 = Big */ - uint32_t raw_palette[256]; - uint32_t palette[256]; -} SyborgFBState; - -enum { - BPP_SRC_1, - BPP_SRC_2, - BPP_SRC_4, - BPP_SRC_8, - BPP_SRC_16, - BPP_SRC_32, - /* TODO: Implement these. */ - BPP_SRC_15 = -1, - BPP_SRC_24 = -2 -}; - -#include "pixel_ops.h" - -#define BITS 8 -#include "pl110_template.h" -#define BITS 15 -#include "pl110_template.h" -#define BITS 16 -#include "pl110_template.h" -#define BITS 24 -#include "pl110_template.h" -#define BITS 32 -#include "pl110_template.h" - -/* Update interrupts. */ -static void syborg_fb_update(SyborgFBState *s) -{ - if ((s->int_status & s->int_enable) != 0) { - DPRINTF("Raise IRQ\n"); - qemu_irq_raise(s->irq); - } else { - DPRINTF("Lower IRQ\n"); - qemu_irq_lower(s->irq); - } -} - -static int syborg_fb_enabled(const SyborgFBState *s) -{ - return s->enabled; -} - -static void syborg_fb_update_palette(SyborgFBState *s) -{ - int n, i; - uint32_t raw; - unsigned int r, g, b; - - switch (s->bpp) { - case BPP_SRC_1: n = 2; break; - case BPP_SRC_2: n = 4; break; - case BPP_SRC_4: n = 16; break; - case BPP_SRC_8: n = 256; break; - default: return; - } - - for (i = 0; i < n; i++) { - raw = s->raw_palette[i]; - r = (raw >> 16) & 0xff; - g = (raw >> 8) & 0xff; - b = raw & 0xff; - switch (ds_get_bits_per_pixel(s->ds)) { - case 8: - s->palette[i] = rgb_to_pixel8(r, g, b); - break; - case 15: - s->palette[i] = rgb_to_pixel15(r, g, b); - break; - case 16: - s->palette[i] = rgb_to_pixel16(r, g, b); - break; - case 24: - case 32: - s->palette[i] = rgb_to_pixel32(r, g, b); - break; - default: - abort(); - } - } - -} - -static void syborg_fb_update_display(void *opaque) -{ - SyborgFBState *s = (SyborgFBState *)opaque; - drawfn* fntable; - drawfn fn; - int dest_width; - int src_width; - int bpp_offset; - int first; - int last; - - if (!syborg_fb_enabled(s)) - return; - - switch (ds_get_bits_per_pixel(s->ds)) { - case 0: - return; - case 8: - fntable = pl110_draw_fn_8; - dest_width = 1; - break; - case 15: - fntable = pl110_draw_fn_15; - dest_width = 2; - break; - case 16: - fntable = pl110_draw_fn_16; - dest_width = 2; - break; - case 24: - fntable = pl110_draw_fn_24; - dest_width = 3; - break; - case 32: - fntable = pl110_draw_fn_32; - dest_width = 4; - break; - default: - fprintf(stderr, "syborg_fb: Bad color depth\n"); - exit(1); - } - - if (s->need_int) { - s->int_status |= FB_INT_BASE_UPDATE_DONE; - syborg_fb_update(s); - s->need_int = 0; - } - - if (s->rgb) { - bpp_offset = 24; - } else { - bpp_offset = 0; - } - if (s->endian) { - bpp_offset += 8; - } - /* Our bpp constants mostly match the PL110/PL111 but - * not for the 16 bit case - */ - switch (s->bpp) { - case BPP_SRC_16: - bpp_offset += 6; - break; - default: - bpp_offset += s->bpp; - } - fn = fntable[bpp_offset]; - - if (s->pitch) { - src_width = s->pitch; - } else { - src_width = s->cols; - switch (s->bpp) { - case BPP_SRC_1: - src_width >>= 3; - break; - case BPP_SRC_2: - src_width >>= 2; - break; - case BPP_SRC_4: - src_width >>= 1; - break; - case BPP_SRC_8: - break; - case BPP_SRC_15: - case BPP_SRC_16: - src_width <<= 1; - break; - case BPP_SRC_24: - src_width *= 3; - break; - case BPP_SRC_32: - src_width <<= 2; - break; - } - } - dest_width *= s->cols; - first = 0; - /* TODO: Implement blanking. */ - if (!s->blank) { - if (s->need_update && s->bpp <= BPP_SRC_8) { - syborg_fb_update_palette(s); - } - framebuffer_update_display(s->ds, - s->base, s->cols, s->rows, - src_width, dest_width, 0, - s->need_update, - fn, s->palette, - &first, &last); - if (first >= 0) { - dpy_update(s->ds, 0, first, s->cols, last - first + 1); - } - - s->int_status |= FB_INT_VSYNC; - syborg_fb_update(s); - } - - s->need_update = 0; -} - -static void syborg_fb_invalidate_display(void * opaque) -{ - SyborgFBState *s = (SyborgFBState *)opaque; - s->need_update = 1; -} - -static uint64_t syborg_fb_read(void *opaque, target_phys_addr_t offset, - unsigned size) -{ - SyborgFBState *s = opaque; - - DPRINTF("read reg %d\n", (int)offset); - offset &= 0xfff; - switch (offset >> 2) { - case FB_ID: - return SYBORG_ID_FRAMEBUFFER; - - case FB_BASE: - return s->base; - - case FB_HEIGHT: - return s->rows; - - case FB_WIDTH: - return s->cols; - - case FB_ORIENTATION: - return 0; - - case FB_BLANK: - return s->blank; - - case FB_INT_MASK: - return s->int_enable; - - case FB_INTERRUPT_CAUSE: - return s->int_status; - - case FB_BPP: - switch (s->bpp) { - case BPP_SRC_1: return 1; - case BPP_SRC_2: return 2; - case BPP_SRC_4: return 4; - case BPP_SRC_8: return 8; - case BPP_SRC_15: return 15; - case BPP_SRC_16: return 16; - case BPP_SRC_24: return 24; - case BPP_SRC_32: return 32; - default: return 0; - } - - case FB_COLOR_ORDER: - return s->rgb; - - case FB_BYTE_ORDER: - return s->endian; - - case FB_PIXEL_ORDER: - return 0; - - case FB_ROW_PITCH: - return s->pitch; - - case FB_ENABLED: - return s->enabled; - - default: - if ((offset >> 2) >= FB_PALETTE_START - && (offset >> 2) <= FB_PALETTE_END) { - return s->raw_palette[(offset >> 2) - FB_PALETTE_START]; - } else { - cpu_abort (cpu_single_env, "syborg_fb_read: Bad offset %x\n", - (int)offset); - } - return 0; - } -} - -static void syborg_fb_write(void *opaque, target_phys_addr_t offset, - uint64_t val, unsigned size) -{ - SyborgFBState *s = opaque; - - DPRINTF("write reg %d = %d\n", (int)offset, val); - s->need_update = 1; - offset &= 0xfff; - switch (offset >> 2) { - case FB_BASE: - s->base = val; - s->need_int = 1; - s->need_update = 1; - syborg_fb_update(s); - break; - - case FB_HEIGHT: - s->rows = val; - break; - - case FB_WIDTH: - s->cols = val; - break; - - case FB_ORIENTATION: - /* TODO: Implement rotation. */ - break; - - case FB_BLANK: - s->blank = val & 1; - break; - - case FB_INT_MASK: - s->int_enable = val; - syborg_fb_update(s); - break; - - case FB_INTERRUPT_CAUSE: - s->int_status &= ~val; - syborg_fb_update(s); - break; - - case FB_BPP: - switch (val) { - case 1: val = BPP_SRC_1; break; - case 2: val = BPP_SRC_2; break; - case 4: val = BPP_SRC_4; break; - case 8: val = BPP_SRC_8; break; - /* case 15: val = BPP_SRC_15; break; */ - case 16: val = BPP_SRC_16; break; - /* case 24: val = BPP_SRC_24; break; */ - case 32: val = BPP_SRC_32; break; - default: val = s->bpp; break; - } - s->bpp = val; - break; - - case FB_COLOR_ORDER: - s->rgb = (val != 0); - break; - - case FB_BYTE_ORDER: - s->endian = (val != 0); - break; - - case FB_PIXEL_ORDER: - /* TODO: Implement this. */ - break; - - case FB_ROW_PITCH: - s->pitch = val; - break; - - case FB_ENABLED: - s->enabled = val; - break; - - default: - if ((offset >> 2) >= FB_PALETTE_START - && (offset >> 2) <= FB_PALETTE_END) { - s->raw_palette[(offset >> 2) - FB_PALETTE_START] = val; - } else { - cpu_abort (cpu_single_env, "syborg_fb_write: Bad offset %x\n", - (int)offset); - } - break; - } -} - -static const MemoryRegionOps syborg_fb_ops = { - .read = syborg_fb_read, - .write = syborg_fb_write, - .endianness = DEVICE_NATIVE_ENDIAN, -}; - -static void syborg_fb_save(QEMUFile *f, void *opaque) -{ - SyborgFBState *s = opaque; - int i; - - qemu_put_be32(f, s->need_int); - qemu_put_be32(f, s->int_status); - qemu_put_be32(f, s->int_enable); - qemu_put_be32(f, s->enabled); - qemu_put_be32(f, s->base); - qemu_put_be32(f, s->pitch); - qemu_put_be32(f, s->rows); - qemu_put_be32(f, s->cols); - qemu_put_be32(f, s->bpp); - qemu_put_be32(f, s->rgb); - for (i = 0; i < 256; i++) { - qemu_put_be32(f, s->raw_palette[i]); - } -} - -static int syborg_fb_load(QEMUFile *f, void *opaque, int version_id) -{ - SyborgFBState *s = opaque; - int i; - - if (version_id != 1) - return -EINVAL; - - s->need_int = qemu_get_be32(f); - s->int_status = qemu_get_be32(f); - s->int_enable = qemu_get_be32(f); - s->enabled = qemu_get_be32(f); - s->base = qemu_get_be32(f); - s->pitch = qemu_get_be32(f); - s->rows = qemu_get_be32(f); - s->cols = qemu_get_be32(f); - s->bpp = qemu_get_be32(f); - s->rgb = qemu_get_be32(f); - for (i = 0; i < 256; i++) { - s->raw_palette[i] = qemu_get_be32(f); - } - s->need_update = 1; - - return 0; -} - -static int syborg_fb_init(SysBusDevice *dev) -{ - SyborgFBState *s = FROM_SYSBUS(SyborgFBState, dev); - - sysbus_init_irq(dev, &s->irq); - memory_region_init_io(&s->iomem, &syborg_fb_ops, s, - "framebuffer", 0x1000); - sysbus_init_mmio(dev, &s->iomem); - - s->ds = graphic_console_init(syborg_fb_update_display, - syborg_fb_invalidate_display, - NULL, NULL, s); - - if (s->cols != 0 && s->rows != 0) { - qemu_console_resize(s->ds, s->cols, s->rows); - } - - if (!s->cols) - s->cols = ds_get_width(s->ds); - if (!s->rows) - s->rows = ds_get_height(s->ds); - - register_savevm(&dev->qdev, "syborg_framebuffer", -1, 1, - syborg_fb_save, syborg_fb_load, s); - return 0; -} - -static SysBusDeviceInfo syborg_fb_info = { - .init = syborg_fb_init, - .qdev.name = "syborg,framebuffer", - .qdev.size = sizeof(SyborgFBState), - .qdev.props = (Property[]) { - DEFINE_PROP_UINT32("width", SyborgFBState, cols, 0), - DEFINE_PROP_UINT32("height", SyborgFBState, rows, 0), - DEFINE_PROP_END_OF_LIST(), - } -}; - -static void syborg_fb_register_devices(void) -{ - sysbus_register_withprop(&syborg_fb_info); -} - -device_init(syborg_fb_register_devices) |