/* * QEMU HP Artist Emulation * * Copyright (c) 2019-2022 Sven Schnelle * Copyright (c) 2022 Helge Deller * * This work is licensed under the terms of the GNU GPL, version 2 or later. */ #include "qemu/osdep.h" #include "qemu/error-report.h" #include "qemu/log.h" #include "qemu/module.h" #include "qemu/units.h" #include "qapi/error.h" #include "hw/sysbus.h" #include "hw/loader.h" #include "hw/qdev-core.h" #include "hw/qdev-properties.h" #include "migration/vmstate.h" #include "ui/console.h" #include "trace.h" #include "framebuffer.h" #include "qom/object.h" #define TYPE_ARTIST "artist" OBJECT_DECLARE_SIMPLE_TYPE(ARTISTState, ARTIST) struct vram_buffer { MemoryRegion mr; uint8_t *data; unsigned int size; unsigned int width; unsigned int height; }; struct ARTISTState { SysBusDevice parent_obj; QemuConsole *con; MemoryRegion vram_mem; MemoryRegion mem_as_root; MemoryRegion reg; MemoryRegionSection fbsection; void *vram_int_mr; AddressSpace as; struct vram_buffer vram_buffer[16]; uint16_t width; uint16_t height; uint16_t depth; uint32_t fg_color; uint32_t bg_color; uint32_t vram_char_y; uint32_t vram_bitmask; uint32_t vram_start; uint32_t vram_pos; uint32_t vram_size; uint32_t blockmove_source; uint32_t blockmove_dest; uint32_t blockmove_size; uint32_t line_size; uint32_t line_end; uint32_t line_xy; uint32_t line_pattern_start; uint32_t line_pattern_skip; uint32_t cursor_pos; uint32_t cursor_cntrl; uint32_t cursor_height; uint32_t cursor_width; uint32_t plane_mask; uint32_t reg_100080; uint32_t horiz_backporch; uint32_t active_lines_low; uint32_t misc_video; uint32_t misc_ctrl; uint32_t dst_bm_access; uint32_t src_bm_access; uint32_t control_plane; uint32_t transfer_data; uint32_t image_bitmap_op; uint32_t font_write1; uint32_t font_write2; uint32_t font_write_pos_y; int draw_line_pattern; }; /* hardware allows up to 64x64, but we emulate 32x32 only. */ #define NGLE_MAX_SPRITE_SIZE 32 typedef enum { ARTIST_BUFFER_AP = 1, ARTIST_BUFFER_OVERLAY = 2, ARTIST_BUFFER_CURSOR1 = 6, ARTIST_BUFFER_CURSOR2 = 7, ARTIST_BUFFER_ATTRIBUTE = 13, ARTIST_BUFFER_CMAP = 15, } artist_buffer_t; typedef enum { VRAM_IDX = 0x1004a0, VRAM_BITMASK = 0x1005a0, VRAM_WRITE_INCR_X = 0x100600, VRAM_WRITE_INCR_X2 = 0x100604, VRAM_WRITE_INCR_Y = 0x100620, VRAM_START = 0x100800, BLOCK_MOVE_SIZE = 0x100804, BLOCK_MOVE_SOURCE = 0x100808, TRANSFER_DATA = 0x100820, FONT_WRITE_INCR_Y = 0x1008a0, VRAM_START_TRIGGER = 0x100a00, VRAM_SIZE_TRIGGER = 0x100a04, FONT_WRITE_START = 0x100aa0, BLOCK_MOVE_DEST_TRIGGER = 0x100b00, BLOCK_MOVE_SIZE_TRIGGER = 0x100b04, LINE_XY = 0x100ccc, PATTERN_LINE_START = 0x100ecc, LINE_SIZE = 0x100e04, LINE_END = 0x100e44, DST_SRC_BM_ACCESS = 0x118000, DST_BM_ACCESS = 0x118004, SRC_BM_ACCESS = 0x118008, CONTROL_PLANE = 0x11800c, FG_COLOR = 0x118010, BG_COLOR = 0x118014, PLANE_MASK = 0x118018, IMAGE_BITMAP_OP = 0x11801c, CURSOR_POS = 0x300100, /* reg17 */ CURSOR_CTRL = 0x300104, /* reg18 */ MISC_VIDEO = 0x300218, /* reg21 */ MISC_CTRL = 0x300308, /* reg27 */ HORIZ_BACKPORCH = 0x300200, /* reg19 */ ACTIVE_LINES_LOW = 0x300208,/* reg20 */ FIFO1 = 0x300008, /* reg34 */ FIFO2 = 0x380008, } artist_reg_t; typedef enum { ARTIST_ROP_CLEAR = 0, ARTIST_ROP_COPY = 3, ARTIST_ROP_XOR = 6, ARTIST_ROP_NOT_DST = 10, ARTIST_ROP_SET = 15, } artist_rop_t; #define REG_NAME(_x) case _x: return " "#_x; static const char *artist_reg_name(uint64_t addr) { switch ((artist_reg_t)addr) { REG_NAME(VRAM_IDX); REG_NAME(VRAM_BITMASK); REG_NAME(VRAM_WRITE_INCR_X); REG_NAME(VRAM_WRITE_INCR_X2); REG_NAME(VRAM_WRITE_INCR_Y); REG_NAME(VRAM_START); REG_NAME(BLOCK_MOVE_SIZE); REG_NAME(BLOCK_MOVE_SOURCE); REG_NAME(FG_COLOR); REG_NAME(BG_COLOR); REG_NAME(PLANE_MASK); REG_NAME(VRAM_START_TRIGGER); REG_NAME(VRAM_SIZE_TRIGGER); REG_NAME(BLOCK_MOVE_DEST_TRIGGER); REG_NAME(BLOCK_MOVE_SIZE_TRIGGER); REG_NAME(TRANSFER_DATA); REG_NAME(CONTROL_PLANE); REG_NAME(IMAGE_BITMAP_OP); REG_NAME(DST_SRC_BM_ACCESS); REG_NAME(DST_BM_ACCESS); REG_NAME(SRC_BM_ACCESS); REG_NAME(CURSOR_POS); REG_NAME(CURSOR_CTRL); REG_NAME(HORIZ_BACKPORCH); REG_NAME(ACTIVE_LINES_LOW); REG_NAME(MISC_VIDEO); REG_NAME(MISC_CTRL); REG_NAME(LINE_XY); REG_NAME(PATTERN_LINE_START); REG_NAME(LINE_SIZE); REG_NAME(LINE_END); REG_NAME(FONT_WRITE_INCR_Y); REG_NAME(FONT_WRITE_START); REG_NAME(FIFO1); REG_NAME(FIFO2); } return ""; } #undef REG_NAME static void artist_invalidate(void *opaque); /* artist has a fixed line length of 2048 bytes. */ #define ADDR_TO_Y(addr) extract32(addr, 11, 11) #define ADDR_TO_X(addr) extract32(addr, 0, 11) static int16_t artist_get_x(uint32_t reg) { return reg >> 16; } static int16_t artist_get_y(uint32_t reg) { return reg & 0xffff; } static void artist_invalidate_lines(struct vram_buffer *buf, int starty, int height) { int start = starty * buf->width; int size; if (starty + height > buf->height) { height = buf->height - starty; } size = height * buf->width; if (start + size <= buf->size) { memory_region_set_dirty(&buf->mr, start, size); } } static int vram_write_bufidx(ARTISTState *s) { return (s->dst_bm_access >> 12) & 0x0f; } static int vram_read_bufidx(ARTISTState *s) { return (s->src_bm_access >> 12) & 0x0f; } static struct vram_buffer *vram_read_buffer(ARTISTState *s) { return &s->vram_buffer[vram_read_bufidx(s)]; } static struct vram_buffer *vram_write_buffer(ARTISTState *s) { return &s->vram_buffer[vram_write_bufidx(s)]; } static uint8_t artist_get_color(ARTISTState *s) { if (s->image_bitmap_op & 2) { return s->fg_color; } else { return s->bg_color; } } static artist_rop_t artist_get_op(ARTISTState *s) { return (s->image_bitmap_op >> 8) & 0xf; } static void artist_rop8(ARTISTState *s, struct vram_buffer *buf, unsigned int offset, uint8_t val) { const artist_rop_t op = artist_get_op(s); uint8_t plane_mask; uint8_t *dst; if (offset >= buf->size) { qemu_log_mask(LOG_GUEST_ERROR, "rop8 offset:%u bufsize:%u\n", offset, buf->size); return; } dst = buf->data + offset; plane_mask = s->plane_mask & 0xff; switch (op) { case ARTIST_ROP_CLEAR: *dst &= ~plane_mask; break; case ARTIST_ROP_COPY: *dst = (*dst & ~plane_mask) | (val & plane_mask); break; case ARTIST_ROP_XOR: *dst ^= val & plane_mask; break; case ARTIST_ROP_NOT_DST: *dst ^= plane_mask; break; case ARTIST_ROP_SET: *dst |= plane_mask; break; default: qemu_log_mask(LOG_UNIMP, "%s: unsupported rop %d\n", __func__, op); break; } } static void artist_get_cursor_pos(ARTISTState *s, int *x, int *y) { /* * The emulated Artist graphic is like a CRX graphic, and as such * it's usually fixed at 1280x1024 pixels. * Other resolutions may work, but no guarantee. */ unsigned int hbp_times_vi, horizBackPorch; int16_t xHi, xLo; const int videoInterleave = 4; const int pipelineDelay = 4; /* ignore if uninitialized */ if (s->cursor_pos == 0) { *x = *y = 0; return; } /* * Calculate X position based on backporch and interleave values. * Based on code from Xorg X11R6.6 */ horizBackPorch = ((s->horiz_backporch & 0xff0000) >> 16) + ((s->horiz_backporch & 0xff00) >> 8) + 2; hbp_times_vi = horizBackPorch * videoInterleave; xHi = s->cursor_pos >> 19; *x = ((xHi + pipelineDelay) * videoInterleave) - hbp_times_vi; xLo = (s->cursor_pos >> 16) & 0x07; *x += ((xLo - hbp_times_vi) & (videoInterleave - 1)) + 8 - 1; /* subtract cursor offset from cursor control register */ *x -= (s->cursor_cntrl & 0xf0) >> 4; /* Calculate Y position */ *y = s->height - artist_get_y(s->cursor_pos); *y -= (s->cursor_cntrl & 0x0f); if (*x > s->width) { *x = s->width; } if (*y > s->height) { *y = s->height; } } static inline bool cursor_visible(ARTISTState *s) { /* cursor is visible if bit 0x80 is set in cursor_cntrl */ return s->cursor_cntrl & 0x80; } static void artist_invalidate_cursor(ARTISTState *s) { int x, y; if (!cursor_visible(s)) { return; } artist_get_cursor_pos(s, &x, &y); artist_invalidate_lines(&s->vram_buffer[ARTIST_BUFFER_AP], y, s->cursor_height); } static void block_move(ARTISTState *s, unsigned int source_x, unsigned int source_y, unsigned int dest_x, unsigned int dest_y, unsigned int width, unsigned int height) { struct vram_buffer *buf; int line, endline, lineincr, startcolumn, endcolumn, columnincr, column; unsigned int dst, src; trace_artist_block_move(source_x, source_y, dest_x, dest_y, width, height); if (s->control_plane != 0) { /* We don't support CONTROL_PLANE accesses */ qemu_log_mask(LOG_UNIMP, "%s: CONTROL_PLANE: %08x\n", __func__, s->control_plane); return; } buf = &s->vram_buffer[ARTIST_BUFFER_AP]; if (height > buf->height) { height = buf->height; } if (width > buf->width) { width = buf->width; } if (dest_y > source_y) { /* move down */ line = height - 1; endline = -1; lineincr = -1; } else { /* move up */ line = 0; endline = height; lineincr = 1; } if (dest_x > source_x) { /* move right */ startcolumn = width - 1; endcolumn = -1; columnincr = -1; } else { /* move left */ startcolumn = 0; endcolumn = width; columnincr = 1; } for ( ; line != endline; line += lineincr) { src = source_x + ((line + source_y) * buf->width) + startcolumn; dst = dest_x + ((line + dest_y) * buf->width) + startcolumn; for (column = startcolumn; column != endcolumn; column += columnincr) { if (dst >= buf->size || src >= buf->size) { continue; } artist_rop8(s, buf, dst, buf->data[src]); src += columnincr; dst += columnincr; } } artist_invalidate_lines(buf, dest_y, height); } static void fill_window(ARTISTState *s, unsigned int startx, unsigned int starty, unsigned int width, unsigned int height) { unsigned int offset; uint8_t color = artist_get_color(s); struct vram_buffer *buf; int x, y; trace_artist_fill_window(startx, starty, width, height, s->image_bitmap_op, s->control_plane); if (s->control_plane != 0) { /* We don't support CONTROL_PLANE accesses */ qemu_log_mask(LOG_UNIMP, "%s: CONTROL_PLANE: %08x\n", __func__, s->control_plane); return; } if (s->reg_100080 == 0x7d) { /* * Not sure what this register really does, but * 0x7d seems to enable autoincremt of the Y axis * by the current block move height. */ height = artist_get_y(s->blockmove_size); s->vram_start += height; } buf = &s->vram_buffer[ARTIST_BUFFER_AP]; for (y = starty; y < starty + height; y++) { offset = y * s->width; for (x = startx; x < startx + width; x++) { artist_rop8(s, buf, offset + x, color); } } artist_invalidate_lines(buf, starty, height); } static void draw_line(ARTISTState *s, unsigned int x1, unsigned int y1, unsigned int x2, unsigned int y2, bool update_start, int skip_pix, int max_pix) { struct vram_buffer *buf = &s->vram_buffer[ARTIST_BUFFER_AP]; uint8_t color; int dx, dy, t, e, x, y, incy, diago, horiz; bool c1; trace_artist_draw_line(x1, y1, x2, y2); if ((x1 >= buf->width && x2 >= buf->width) || (y1 >= buf->height && y2 >= buf->height)) { return; } if (update_start) { s->vram_start = (x2 << 16) | y2; } if (x2 > x1) { dx = x2 - x1; } else { dx = x1 - x2; } if (y2 > y1) { dy = y2 - y1; } else { dy = y1 - y2; } c1 = false; if (dy > dx) { t = y2; y2 = x2; x2 = t; t = y1; y1 = x1; x1 = t; t = dx; dx = dy; dy = t; c1 = true; } if (x1 > x2) { t = y2; y2 = y1; y1 = t; t = x1; x1 = x2; x2 = t; } horiz = dy << 1; diago = (dy - dx) << 1; e = (dy << 1) - dx; if (y1 <= y2) { incy = 1; } else { incy = -1; } x = x1; y = y1; color = artist_get_color(s); do { unsigned int ofs; if (c1) { ofs = x * s->width + y; } else { ofs = y * s->width + x; } if (skip_pix > 0) { skip_pix--; } else { artist_rop8(s, buf, ofs, color); } if (e > 0) { y += incy; e += diago; } else { e += horiz; } x++; } while (x <= x2 && (max_pix == -1 || --max_pix > 0)); if (c1) { artist_invalidate_lines(buf, x1, x2 - x1); } else { artist_invalidate_lines(buf, y1 > y2 ? y2 : y1, x2 - x1); } } static void draw_line_pattern_start(ARTISTState *s) { int startx = artist_get_x(s->vram_start); int starty = artist_get_y(s->vram_start); int endx = artist_get_x(s->blockmove_size); int endy = artist_get_y(s->blockmove_size); int pstart = s->line_pattern_start >> 16; draw_line(s, startx, starty, endx, endy, false, -1, pstart); s->line_pattern_skip = pstart; } static void draw_line_pattern_next(ARTISTState *s) { int startx = artist_get_x(s->vram_start); int starty = artist_get_y(s->vram_start); int endx = artist_get_x(s->blockmove_size); int endy = artist_get_y(s->blockmove_size); int line_xy = s->line_xy >> 16; draw_line(s, startx, starty, endx, endy, false, s->line_pattern_skip, s->line_pattern_skip + line_xy); s->line_pattern_skip += line_xy; s->image_bitmap_op ^= 2; } static void draw_line_size(ARTISTState *s, bool update_start) { int startx = artist_get_x(s->vram_start); int starty = artist_get_y(s->vram_start); int endx = artist_get_x(s->line_size); int endy = artist_get_y(s->line_size); draw_line(s, startx, starty, endx, endy, update_start, -1, -1); } static void draw_line_xy(ARTISTState *s, bool update_start) { int startx = artist_get_x(s->vram_start); int starty = artist_get_y(s->vram_start); int sizex = artist_get_x(s->blockmove_size); int sizey = artist_get_y(s->blockmove_size); int linexy = s->line_xy >> 16; int endx, endy; endx = startx; endy = starty; if (sizex > 0) { endx = startx + linexy; } if (sizex < 0) { endx = startx; startx -= linexy; } if (sizey > 0) { endy = starty + linexy; } if (sizey < 0) { endy = starty; starty -= linexy; } if (startx < 0) { startx = 0; } if (endx < 0) { endx = 0; } if (starty < 0) { starty = 0; } if (endy < 0) { endy = 0; } draw_line(s, startx, starty, endx, endy, false, -1, -1); } static void draw_line_end(ARTISTState *s, bool update_start) { int startx = artist_get_x(s->vram_start); int starty = artist_get_y(s->vram_start); int endx = artist_get_x(s->line_end); int endy = artist_get_y(s->line_end); draw_line(s, startx, starty, endx, endy, update_start, -1, -1); } static void font_write16(ARTISTState *s, uint16_t val) { struct vram_buffer *buf; uint32_t color = (s->image_bitmap_op & 2) ? s->fg_color : s->bg_color; uint16_t mask; int i; unsigned int startx = artist_get_x(s->vram_start); unsigned int starty = artist_get_y(s->vram_start) + s->font_write_pos_y; unsigned int offset = starty * s->width + startx; buf = &s->vram_buffer[ARTIST_BUFFER_AP]; if (startx >= buf->width || starty >= buf->height || offset + 16 >= buf->size) { return; } for (i = 0; i < 16; i++) { mask = 1 << (15 - i); if (val & mask) { artist_rop8(s, buf, offset + i, color); } else { if (!(s->image_bitmap_op & 0x20000000)) { artist_rop8(s, buf, offset + i, s->bg_color); } } } artist_invalidate_lines(buf, starty, 1); } static void font_write(ARTISTState *s, uint32_t val) { font_write16(s, val >> 16); if (++s->font_write_pos_y == artist_get_y(s->blockmove_size)) { s->vram_start += (s->blockmove_size & 0xffff0000); return; } font_write16(s, val & 0xffff); if (++s->font_write_pos_y == artist_get_y(s->blockmove_size)) { s->vram_start += (s->blockmove_size & 0xffff0000); return; } } static void combine_write_reg(hwaddr addr, uint64_t val, int size, void *out) { /* * FIXME: is there a qemu helper for this? */ #if !HOST_BIG_ENDIAN addr ^= 3; #endif switch (size) { case 1: *(uint8_t *)(out + (addr & 3)) = val; break; case 2: *(uint16_t *)(out + (addr & 2)) = val; break; case 4: *(uint32_t *)out = val; break; default: qemu_log_mask(LOG_UNIMP, "unsupported write size: %d\n", size); } } static void artist_vram_write4(ARTISTState *s, struct vram_buffer *buf, uint32_t offset, uint32_t data) { int i; int mask = s->vram_bitmask >> 28; for (i = 0; i < 4; i++) { if (!(s->image_bitmap_op & 0x20000000) || (mask & 8)) { artist_rop8(s, buf, offset + i, data >> 24); data <<= 8; mask <<= 1; } } memory_region_set_dirty(&buf->mr, offset, 3); } static void artist_vram_write32(ARTISTState *s, struct vram_buffer *buf, uint32_t offset, int size, uint32_t data, int fg, int bg) { uint32_t mask, vram_bitmask = s->vram_bitmask >> ((4 - size) * 8); int i, pix_count = size * 8; for (i = 0; i < pix_count && offset + i < buf->size; i++) { mask = 1 << (pix_count - 1 - i); if (!(s->image_bitmap_op & 0x20000000) || (vram_bitmask & mask)) { if (data & mask) { artist_rop8(s, buf, offset + i, fg); } else { if (!(s->image_bitmap_op & 0x10000002)) { artist_rop8(s, buf, offset + i, bg); } } } } memory_region_set_dirty(&buf->mr, offset, pix_count); } static int get_vram_offset(ARTISTState *s, struct vram_buffer *buf, int pos, int posy) { unsigned int posx, width; width = buf->width; posx = ADDR_TO_X(pos); posy += ADDR_TO_Y(pos); return posy * width + posx; } static int vram_bit_write(ARTISTState *s, uint32_t pos, int posy, uint32_t data, int size) { struct vram_buffer *buf = vram_write_buffer(s); switch (s->dst_bm_access >> 16) { case 0x3ba0: case 0xbbe0: artist_vram_write4(s, buf, pos, bswap32(data)); pos += 4; break; case 0x1360: /* linux */ artist_vram_write4(s, buf, get_vram_offset(s, buf, pos, posy), data); pos += 4; break; case 0x13a0: artist_vram_write4(s, buf, get_vram_offset(s, buf, pos >> 2, posy), data); pos += 16; break; case 0x2ea0: artist_vram_write32(s, buf, get_vram_offset(s, buf, pos >> 2, posy), size, data, s->fg_color, s->bg_color); pos += 4; break; case 0x28a0: artist_vram_write32(s, buf, get_vram_offset(s, buf, pos >> 2, posy), size, data, 1, 0); pos += 4; break; default: qemu_log_mask(LOG_UNIMP, "%s: unknown dst bm access %08x\n", __func__, s->dst_bm_access); break; } if (vram_write_bufidx(s) == ARTIST_BUFFER_CURSOR1 || vram_write_bufidx(s) == ARTIST_BUFFER_CURSOR2) { artist_invalidate_cursor(s); } return pos; } static void artist_vram_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) { ARTISTState *s = opaque; s->vram_char_y = 0; trace_artist_vram_write(size, addr, val); vram_bit_write(opaque, addr, 0, val, size); } static uint64_t artist_vram_read(void *opaque, hwaddr addr, unsigned size) { ARTISTState *s = opaque; struct vram_buffer *buf; unsigned int offset; uint64_t val; buf = vram_read_buffer(s); if (!buf->size) { return 0; } offset = get_vram_offset(s, buf, addr >> 2, 0); if (offset > buf->size) { return 0; } switch (s->src_bm_access >> 16) { case 0x3ba0: val = *(uint32_t *)(buf->data + offset); break; case 0x13a0: case 0x2ea0: val = bswap32(*(uint32_t *)(buf->data + offset)); break; default: qemu_log_mask(LOG_UNIMP, "%s: unknown src bm access %08x\n", __func__, s->dst_bm_access); val = -1ULL; break; } trace_artist_vram_read(size, addr, val); return val; } static void artist_reg_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) { ARTISTState *s = opaque; int width, height; uint64_t oldval; trace_artist_reg_write(size, addr, artist_reg_name(addr & ~3ULL), val); switch (addr & ~3ULL) { case 0x100080: combine_write_reg(addr, val, size, &s->reg_100080); break; case FG_COLOR: combine_write_reg(addr, val, size, &s->fg_color); break; case BG_COLOR: combine_write_reg(addr, val, size, &s->bg_color); break; case VRAM_BITMASK: combine_write_reg(addr, val, size, &s->vram_bitmask); break; case VRAM_WRITE_INCR_Y: vram_bit_write(s, s->vram_pos, s->vram_char_y++, val, size); break; case VRAM_WRITE_INCR_X: case VRAM_WRITE_INCR_X2: s->vram_pos = vram_bit_write(s, s->vram_pos, s->vram_char_y, val, size); break; case VRAM_IDX: combine_write_reg(addr, val, size, &s->vram_pos); s->vram_char_y = 0; s->draw_line_pattern = 0; break; case VRAM_START: combine_write_reg(addr, val, size, &s->vram_start); s->draw_line_pattern = 0; break; case VRAM_START_TRIGGER: combine_write_reg(addr, val, size, &s->vram_start); fill_window(s, artist_get_x(s->vram_start), artist_get_y(s->vram_start), artist_get_x(s->blockmove_size), artist_get_y(s->blockmove_size)); break; case VRAM_SIZE_TRIGGER: combine_write_reg(addr, val, size, &s->vram_size); if (size == 2 && !(addr & 2)) { height = artist_get_y(s->blockmove_size); } else { height = artist_get_y(s->vram_size); } if (size == 2 && (addr & 2)) { width = artist_get_x(s->blockmove_size); } else { width = artist_get_x(s->vram_size); } fill_window(s, artist_get_x(s->vram_start), artist_get_y(s->vram_start), width, height); break; case LINE_XY: combine_write_reg(addr, val, size, &s->line_xy); if (s->draw_line_pattern) { draw_line_pattern_next(s); } else { draw_line_xy(s, true); } break; case PATTERN_LINE_START: combine_write_reg(addr, val, size, &s->line_pattern_start); s->draw_line_pattern = 1; draw_line_pattern_start(s); break; case LINE_SIZE: combine_write_reg(addr, val, size, &s->line_size); draw_line_size(s, true); break; case LINE_END: combine_write_reg(addr, val, size, &s->line_end); draw_line_end(s, true); break; case BLOCK_MOVE_SIZE: combine_write_reg(addr, val, size, &s->blockmove_size); break; case BLOCK_MOVE_SOURCE: combine_write_reg(addr, val, size, &s->blockmove_source); break; case BLOCK_MOVE_DEST_TRIGGER: combine_write_reg(addr, val, size, &s->blockmove_dest); block_move(s, artist_get_x(s->blockmove_source), artist_get_y(s->blockmove_source), artist_get_x(s->blockmove_dest), artist_get_y(s->blockmove_dest), artist_get_x(s->blockmove_size), artist_get_y(s->blockmove_size)); break; case BLOCK_MOVE_SIZE_TRIGGER: combine_write_reg(addr, val, size, &s->blockmove_size); block_move(s, artist_get_x(s->blockmove_source), artist_get_y(s->blockmove_source), artist_get_x(s->vram_start), artist_get_y(s->vram_start), artist_get_x(s->blockmove_size), artist_get_y(s->blockmove_size)); break; case PLANE_MASK: combine_write_reg(addr, val, size, &s->plane_mask); break; case DST_SRC_BM_ACCESS: combine_write_reg(addr, val, size, &s->dst_bm_access); combine_write_reg(addr, val, size, &s->src_bm_access); break; case DST_BM_ACCESS: combine_write_reg(addr, val, size, &s->dst_bm_access); break; case SRC_BM_ACCESS: combine_write_reg(addr, val, size, &s->src_bm_access); break; case CONTROL_PLANE: combine_write_reg(addr, val, size, &s->control_plane); break; case TRANSFER_DATA: combine_write_reg(addr, val, size, &s->transfer_data); break; case HORIZ_BACKPORCH: /* overwrite HP-UX settings to fix X cursor position. */ val = (NGLE_MAX_SPRITE_SIZE << 16) + (NGLE_MAX_SPRITE_SIZE << 8); combine_write_reg(addr, val, size, &s->horiz_backporch); break; case ACTIVE_LINES_LOW: combine_write_reg(addr, val, size, &s->active_lines_low); break; case MISC_VIDEO: oldval = s->misc_video; combine_write_reg(addr, val, size, &s->misc_video); /* Invalidate and hide screen if graphics signal is turned off. */ if (((oldval & 0x0A000000) == 0x0A000000) && ((val & 0x0A000000) != 0x0A000000)) { artist_invalidate(s); } /* Invalidate and redraw screen if graphics signal is turned back on. */ if (((oldval & 0x0A000000) != 0x0A000000) && ((val & 0x0A000000) == 0x0A000000)) { artist_invalidate(s); } break; case MISC_CTRL: combine_write_reg(addr, val, size, &s->misc_ctrl); break; case CURSOR_POS: artist_invalidate_cursor(s); combine_write_reg(addr, val, size, &s->cursor_pos); artist_invalidate_cursor(s); break; case CURSOR_CTRL: combine_write_reg(addr, val, size, &s->cursor_cntrl); break; case IMAGE_BITMAP_OP: combine_write_reg(addr, val, size, &s->image_bitmap_op); break; case FONT_WRITE_INCR_Y: combine_write_reg(addr, val, size, &s->font_write1); font_write(s, s->font_write1); break; case FONT_WRITE_START: combine_write_reg(addr, val, size, &s->font_write2); s->font_write_pos_y = 0; font_write(s, s->font_write2); break; case 300104: break; default: qemu_log_mask(LOG_UNIMP, "%s: unknown register: reg=%08" HWADDR_PRIx " val=%08" PRIx64 " size=%d\n", __func__, addr, val, size); break; } } static uint64_t combine_read_reg(hwaddr addr, int size, void *in) { /* * FIXME: is there a qemu helper for this? */ #if !HOST_BIG_ENDIAN addr ^= 3; #endif switch (size) { case 1: return *(uint8_t *)(in + (addr & 3)); case 2: return *(uint16_t *)(in + (addr & 2)); case 4: return *(uint32_t *)in; default: qemu_log_mask(LOG_UNIMP, "unsupported read size: %d\n", size); return 0; } } static uint64_t artist_reg_read(void *opaque, hwaddr addr, unsigned size) { ARTISTState *s = opaque; uint32_t val = 0; switch (addr & ~3ULL) { /* Unknown status registers */ case 0: break; case 0x211110: val = (s->width << 16) | s->height; if (s->depth == 1) { val |= 1 << 31; } break; case 0x100000: case 0x300000: case 0x300004: case 0x380000: break; case FIFO1: case FIFO2: /* * FIFO ready flag. we're not emulating the FIFOs * so we're always ready */ val = 0x10; break; case HORIZ_BACKPORCH: val = s->horiz_backporch; break; case ACTIVE_LINES_LOW: val = s->active_lines_low; /* activeLinesLo for cursor is in reg20.b.b0 */ val &= ~(0xff << 24); val |= (s->height & 0xff) << 24; break; case MISC_VIDEO: /* emulate V-blank */ s->misc_video ^= 0x00040000; /* activeLinesHi for cursor is in reg21.b.b2 */ val = s->misc_video; val &= ~0xff00UL; val |= (s->height & 0xff00); break; case MISC_CTRL: val = s->misc_ctrl; break; case 0x30023c: val = 0xac4ffdac; break; case 0x380004: /* 0x02000000 Buserror */ val = 0x6dc20006; break; default: qemu_log_mask(LOG_UNIMP, "%s: unknown register: %08" HWADDR_PRIx " size %d\n", __func__, addr, size); break; } val = combine_read_reg(addr, size, &val); trace_artist_reg_read(size, addr, artist_reg_name(addr & ~3ULL), val); return val; } static const MemoryRegionOps artist_reg_ops = { .read = artist_reg_read, .write = artist_reg_write, .endianness = DEVICE_NATIVE_ENDIAN, .impl.min_access_size = 1, .impl.max_access_size = 4, }; static const MemoryRegionOps artist_vram_ops = { .read = artist_vram_read, .write = artist_vram_write, .endianness = DEVICE_NATIVE_ENDIAN, .impl.min_access_size = 1, .impl.max_access_size = 4, }; static void artist_draw_cursor(ARTISTState *s) { DisplaySurface *surface = qemu_console_surface(s->con); uint32_t *data = (uint32_t *)surface_data(surface); struct vram_buffer *cursor0, *cursor1 , *buf; int cx, cy, cursor_pos_x, cursor_pos_y; if (!cursor_visible(s)) { return; } cursor0 = &s->vram_buffer[ARTIST_BUFFER_CURSOR1]; cursor1 = &s->vram_buffer[ARTIST_BUFFER_CURSOR2]; buf = &s->vram_buffer[ARTIST_BUFFER_AP]; artist_get_cursor_pos(s, &cursor_pos_x, &cursor_pos_y); for (cy = 0; cy < s->cursor_height; cy++) { for (cx = 0; cx < s->cursor_width; cx++) { if (cursor_pos_y + cy < 0 || cursor_pos_x + cx < 0 || cursor_pos_y + cy > buf->height - 1 || cursor_pos_x + cx > buf->width) { continue; } int dstoffset = (cursor_pos_y + cy) * s->width + (cursor_pos_x + cx); if (cursor0->data[cy * cursor0->width + cx]) { data[dstoffset] = 0; } else { if (cursor1->data[cy * cursor1->width + cx]) { data[dstoffset] = 0xffffff; } } } } } static bool artist_screen_enabled(ARTISTState *s) { /* We could check for (s->misc_ctrl & 0x00800000) too... */ return ((s->misc_video & 0x0A000000) == 0x0A000000); } static void artist_draw_line(void *opaque, uint8_t *d, const uint8_t *src, int width, int pitch) { ARTISTState *s = ARTIST(opaque); uint32_t *cmap, *data = (uint32_t *)d; int x; if (!artist_screen_enabled(s)) { /* clear screen */ memset(data, 0, s->width * sizeof(uint32_t)); return; } cmap = (uint32_t *)(s->vram_buffer[ARTIST_BUFFER_CMAP].data + 0x400); for (x = 0; x < s->width; x++) { *data++ = cmap[*src++]; } } static void artist_update_display(void *opaque) { ARTISTState *s = opaque; DisplaySurface *surface = qemu_console_surface(s->con); int first = 0, last; framebuffer_update_display(surface, &s->fbsection, s->width, s->height, s->width, s->width * 4, 0, 0, artist_draw_line, s, &first, &last); artist_draw_cursor(s); if (first >= 0) { dpy_gfx_update(s->con, 0, first, s->width, last - first + 1); } } static void artist_invalidate(void *opaque) { ARTISTState *s = ARTIST(opaque); struct vram_buffer *buf = &s->vram_buffer[ARTIST_BUFFER_AP]; memory_region_set_dirty(&buf->mr, 0, buf->size); } static const GraphicHwOps artist_ops = { .invalidate = artist_invalidate, .gfx_update = artist_update_display, }; static void artist_initfn(Object *obj) { SysBusDevice *sbd = SYS_BUS_DEVICE(obj); ARTISTState *s = ARTIST(obj); memory_region_init_io(&s->reg, obj, &artist_reg_ops, s, "artist.reg", 4 * MiB); memory_region_init_io(&s->vram_mem, obj, &artist_vram_ops, s, "artist.vram", 8 * MiB); sysbus_init_mmio(sbd, &s->reg); sysbus_init_mmio(sbd, &s->vram_mem); } static void artist_create_buffer(ARTISTState *s, const char *name, hwaddr *offset, unsigned int idx, int width, int height) { struct vram_buffer *buf = s->vram_buffer + idx; memory_region_init_ram(&buf->mr, OBJECT(s), name, width * height, &error_fatal); memory_region_add_subregion_overlap(&s->mem_as_root, *offset, &buf->mr, 0); buf->data = memory_region_get_ram_ptr(&buf->mr); buf->size = height * width; buf->width = width; buf->height = height; *offset += buf->size; } static void artist_realizefn(DeviceState *dev, Error **errp) { ARTISTState *s = ARTIST(dev); struct vram_buffer *buf; hwaddr offset = 0; if (s->width > 2048 || s->height > 2048) { error_report("artist: screen size can not exceed 2048 x 2048 pixel."); s->width = MIN(s->width, 2048); s->height = MIN(s->height, 2048); } if (s->width < 640 || s->height < 480) { error_report("artist: minimum screen size is 640 x 480 pixel."); s->width = MAX(s->width, 640); s->height = MAX(s->height, 480); } memory_region_init(&s->mem_as_root, OBJECT(dev), "artist", ~0ull); address_space_init(&s->as, &s->mem_as_root, "artist"); artist_create_buffer(s, "cmap", &offset, ARTIST_BUFFER_CMAP, 2048, 4); artist_create_buffer(s, "ap", &offset, ARTIST_BUFFER_AP, s->width, s->height); artist_create_buffer(s, "cursor1", &offset, ARTIST_BUFFER_CURSOR1, 64, 64); artist_create_buffer(s, "cursor2", &offset, ARTIST_BUFFER_CURSOR2, 64, 64); artist_create_buffer(s, "attribute", &offset, ARTIST_BUFFER_ATTRIBUTE, 64, 64); buf = &s->vram_buffer[ARTIST_BUFFER_AP]; framebuffer_update_memory_section(&s->fbsection, &buf->mr, 0, buf->width, buf->height); /* * Artist cursor max size */ s->cursor_height = NGLE_MAX_SPRITE_SIZE; s->cursor_width = NGLE_MAX_SPRITE_SIZE; /* * These two registers are not initialized by seabios's STI implementation. * Initialize them here to sane values so artist also works with older * (not-fixed) seabios versions. */ s->image_bitmap_op = 0x23000300; s->plane_mask = 0xff; /* enable screen */ s->misc_video |= 0x0A000000; s->misc_ctrl |= 0x00800000; s->con = graphic_console_init(dev, 0, &artist_ops, s); qemu_console_resize(s->con, s->width, s->height); } static int vmstate_artist_post_load(void *opaque, int version_id) { artist_invalidate(opaque); return 0; } static const VMStateDescription vmstate_artist = { .name = "artist", .version_id = 2, .minimum_version_id = 2, .post_load = vmstate_artist_post_load, .fields = (const VMStateField[]) { VMSTATE_UINT16(height, ARTISTState), VMSTATE_UINT16(width, ARTISTState), VMSTATE_UINT16(depth, ARTISTState), VMSTATE_UINT32(fg_color, ARTISTState), VMSTATE_UINT32(bg_color, ARTISTState), VMSTATE_UINT32(vram_char_y, ARTISTState), VMSTATE_UINT32(vram_bitmask, ARTISTState), VMSTATE_UINT32(vram_start, ARTISTState), VMSTATE_UINT32(vram_pos, ARTISTState), VMSTATE_UINT32(vram_size, ARTISTState), VMSTATE_UINT32(blockmove_source, ARTISTState), VMSTATE_UINT32(blockmove_dest, ARTISTState), VMSTATE_UINT32(blockmove_size, ARTISTState), VMSTATE_UINT32(line_size, ARTISTState), VMSTATE_UINT32(line_end, ARTISTState), VMSTATE_UINT32(line_xy, ARTISTState), VMSTATE_UINT32(cursor_pos, ARTISTState), VMSTATE_UINT32(cursor_cntrl, ARTISTState), VMSTATE_UINT32(cursor_height, ARTISTState), VMSTATE_UINT32(cursor_width, ARTISTState), VMSTATE_UINT32(plane_mask, ARTISTState), VMSTATE_UINT32(reg_100080, ARTISTState), VMSTATE_UINT32(horiz_backporch, ARTISTState), VMSTATE_UINT32(active_lines_low, ARTISTState), VMSTATE_UINT32(misc_video, ARTISTState), VMSTATE_UINT32(misc_ctrl, ARTISTState), VMSTATE_UINT32(dst_bm_access, ARTISTState), VMSTATE_UINT32(src_bm_access, ARTISTState), VMSTATE_UINT32(control_plane, ARTISTState), VMSTATE_UINT32(transfer_data, ARTISTState), VMSTATE_UINT32(image_bitmap_op, ARTISTState), VMSTATE_UINT32(font_write1, ARTISTState), VMSTATE_UINT32(font_write2, ARTISTState), VMSTATE_UINT32(font_write_pos_y, ARTISTState), VMSTATE_END_OF_LIST() } }; static Property artist_properties[] = { DEFINE_PROP_UINT16("width", ARTISTState, width, 1280), DEFINE_PROP_UINT16("height", ARTISTState, height, 1024), DEFINE_PROP_UINT16("depth", ARTISTState, depth, 8), DEFINE_PROP_END_OF_LIST(), }; static void artist_reset(DeviceState *qdev) { } static void artist_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); dc->realize = artist_realizefn; dc->vmsd = &vmstate_artist; device_class_set_legacy_reset(dc, artist_reset); device_class_set_props(dc, artist_properties); } static const TypeInfo artist_info = { .name = TYPE_ARTIST, .parent = TYPE_SYS_BUS_DEVICE, .instance_size = sizeof(ARTISTState), .instance_init = artist_initfn, .class_init = artist_class_init, }; static void artist_register_types(void) { type_register_static(&artist_info); } type_init(artist_register_types)