1443 lines
36 KiB
C
1443 lines
36 KiB
C
/*
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* QEMU HP Artist Emulation
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*
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* Copyright (c) 2019 Sven Schnelle <svens@stackframe.org>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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*/
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#include "qemu/osdep.h"
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#include "qemu-common.h"
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#include "qemu/error-report.h"
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#include "qemu/typedefs.h"
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#include "qemu/log.h"
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#include "qemu/module.h"
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#include "qemu/units.h"
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#include "qapi/error.h"
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#include "hw/sysbus.h"
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#include "hw/loader.h"
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#include "hw/qdev-core.h"
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#include "hw/qdev-properties.h"
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#include "migration/vmstate.h"
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#include "ui/console.h"
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#include "trace.h"
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#include "framebuffer.h"
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#define TYPE_ARTIST "artist"
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#define ARTIST(obj) OBJECT_CHECK(ARTISTState, (obj), TYPE_ARTIST)
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#ifdef HOST_WORDS_BIGENDIAN
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#define ROP8OFF(_i) (3 - (_i))
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#else
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#define ROP8OFF
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#endif
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struct vram_buffer {
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MemoryRegion mr;
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uint8_t *data;
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int size;
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int width;
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int height;
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};
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typedef struct ARTISTState {
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SysBusDevice parent_obj;
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QemuConsole *con;
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MemoryRegion vram_mem;
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MemoryRegion mem_as_root;
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MemoryRegion reg;
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MemoryRegionSection fbsection;
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void *vram_int_mr;
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AddressSpace as;
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struct vram_buffer vram_buffer[16];
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uint16_t width;
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uint16_t height;
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uint16_t depth;
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uint32_t fg_color;
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uint32_t bg_color;
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uint32_t vram_char_y;
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uint32_t vram_bitmask;
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uint32_t vram_start;
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uint32_t vram_pos;
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uint32_t vram_size;
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uint32_t blockmove_source;
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uint32_t blockmove_dest;
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uint32_t blockmove_size;
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uint32_t line_size;
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uint32_t line_end;
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uint32_t line_xy;
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uint32_t line_pattern_start;
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uint32_t line_pattern_skip;
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uint32_t cursor_pos;
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uint32_t cursor_height;
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uint32_t cursor_width;
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uint32_t plane_mask;
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uint32_t reg_100080;
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uint32_t reg_300200;
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uint32_t reg_300208;
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uint32_t reg_300218;
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uint32_t cmap_bm_access;
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uint32_t dst_bm_access;
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uint32_t src_bm_access;
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uint32_t control_plane;
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uint32_t transfer_data;
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uint32_t image_bitmap_op;
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uint32_t font_write1;
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uint32_t font_write2;
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uint32_t font_write_pos_y;
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int draw_line_pattern;
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} ARTISTState;
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typedef enum {
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ARTIST_BUFFER_AP = 1,
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ARTIST_BUFFER_OVERLAY = 2,
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ARTIST_BUFFER_CURSOR1 = 6,
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ARTIST_BUFFER_CURSOR2 = 7,
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ARTIST_BUFFER_ATTRIBUTE = 13,
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ARTIST_BUFFER_CMAP = 15,
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} artist_buffer_t;
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typedef enum {
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VRAM_IDX = 0x1004a0,
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VRAM_BITMASK = 0x1005a0,
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VRAM_WRITE_INCR_X = 0x100600,
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VRAM_WRITE_INCR_X2 = 0x100604,
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VRAM_WRITE_INCR_Y = 0x100620,
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VRAM_START = 0x100800,
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BLOCK_MOVE_SIZE = 0x100804,
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BLOCK_MOVE_SOURCE = 0x100808,
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TRANSFER_DATA = 0x100820,
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FONT_WRITE_INCR_Y = 0x1008a0,
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VRAM_START_TRIGGER = 0x100a00,
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VRAM_SIZE_TRIGGER = 0x100a04,
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FONT_WRITE_START = 0x100aa0,
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BLOCK_MOVE_DEST_TRIGGER = 0x100b00,
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BLOCK_MOVE_SIZE_TRIGGER = 0x100b04,
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LINE_XY = 0x100ccc,
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PATTERN_LINE_START = 0x100ecc,
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LINE_SIZE = 0x100e04,
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LINE_END = 0x100e44,
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CMAP_BM_ACCESS = 0x118000,
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DST_BM_ACCESS = 0x118004,
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SRC_BM_ACCESS = 0x118008,
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CONTROL_PLANE = 0x11800c,
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FG_COLOR = 0x118010,
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BG_COLOR = 0x118014,
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PLANE_MASK = 0x118018,
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IMAGE_BITMAP_OP = 0x11801c,
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CURSOR_POS = 0x300100,
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CURSOR_CTRL = 0x300104,
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} artist_reg_t;
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typedef enum {
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ARTIST_ROP_CLEAR = 0,
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ARTIST_ROP_COPY = 3,
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ARTIST_ROP_XOR = 6,
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ARTIST_ROP_NOT_DST = 10,
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ARTIST_ROP_SET = 15,
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} artist_rop_t;
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#define REG_NAME(_x) case _x: return " "#_x;
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static const char *artist_reg_name(uint64_t addr)
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{
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switch ((artist_reg_t)addr) {
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REG_NAME(VRAM_IDX);
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REG_NAME(VRAM_BITMASK);
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REG_NAME(VRAM_WRITE_INCR_X);
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REG_NAME(VRAM_WRITE_INCR_X2);
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REG_NAME(VRAM_WRITE_INCR_Y);
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REG_NAME(VRAM_START);
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REG_NAME(BLOCK_MOVE_SIZE);
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REG_NAME(BLOCK_MOVE_SOURCE);
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REG_NAME(FG_COLOR);
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REG_NAME(BG_COLOR);
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REG_NAME(PLANE_MASK);
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REG_NAME(VRAM_START_TRIGGER);
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REG_NAME(VRAM_SIZE_TRIGGER);
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REG_NAME(BLOCK_MOVE_DEST_TRIGGER);
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REG_NAME(BLOCK_MOVE_SIZE_TRIGGER);
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REG_NAME(TRANSFER_DATA);
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REG_NAME(CONTROL_PLANE);
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REG_NAME(IMAGE_BITMAP_OP);
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REG_NAME(CMAP_BM_ACCESS);
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REG_NAME(DST_BM_ACCESS);
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REG_NAME(SRC_BM_ACCESS);
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REG_NAME(CURSOR_POS);
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REG_NAME(CURSOR_CTRL);
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REG_NAME(LINE_XY);
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REG_NAME(PATTERN_LINE_START);
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REG_NAME(LINE_SIZE);
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REG_NAME(LINE_END);
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REG_NAME(FONT_WRITE_INCR_Y);
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REG_NAME(FONT_WRITE_START);
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}
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return "";
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}
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#undef REG_NAME
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static int16_t artist_get_x(uint32_t reg)
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{
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return reg >> 16;
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}
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static int16_t artist_get_y(uint32_t reg)
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{
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return reg & 0xffff;
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}
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static void artist_invalidate_lines(struct vram_buffer *buf,
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int starty, int height)
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{
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int start = starty * buf->width;
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int size = height * buf->width;
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if (start + size <= buf->size) {
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memory_region_set_dirty(&buf->mr, start, size);
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}
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}
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static int vram_write_pix_per_transfer(ARTISTState *s)
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{
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if (s->cmap_bm_access) {
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return 1 << ((s->cmap_bm_access >> 27) & 0x0f);
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} else {
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return 1 << ((s->dst_bm_access >> 27) & 0x0f);
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}
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}
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static int vram_pixel_length(ARTISTState *s)
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{
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if (s->cmap_bm_access) {
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return (s->cmap_bm_access >> 24) & 0x07;
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} else {
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return (s->dst_bm_access >> 24) & 0x07;
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}
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}
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static int vram_write_bufidx(ARTISTState *s)
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{
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if (s->cmap_bm_access) {
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return (s->cmap_bm_access >> 12) & 0x0f;
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} else {
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return (s->dst_bm_access >> 12) & 0x0f;
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}
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}
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static int vram_read_bufidx(ARTISTState *s)
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{
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if (s->cmap_bm_access) {
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return (s->cmap_bm_access >> 12) & 0x0f;
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} else {
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return (s->src_bm_access >> 12) & 0x0f;
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}
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}
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static struct vram_buffer *vram_read_buffer(ARTISTState *s)
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{
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return &s->vram_buffer[vram_read_bufidx(s)];
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}
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static struct vram_buffer *vram_write_buffer(ARTISTState *s)
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{
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return &s->vram_buffer[vram_write_bufidx(s)];
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}
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static uint8_t artist_get_color(ARTISTState *s)
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{
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if (s->image_bitmap_op & 2) {
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return s->fg_color;
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} else {
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return s->bg_color;
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}
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}
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static artist_rop_t artist_get_op(ARTISTState *s)
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{
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return (s->image_bitmap_op >> 8) & 0xf;
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}
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static void artist_rop8(ARTISTState *s, uint8_t *dst, uint8_t val)
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{
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const artist_rop_t op = artist_get_op(s);
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uint8_t plane_mask = s->plane_mask & 0xff;
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switch (op) {
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case ARTIST_ROP_CLEAR:
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*dst &= ~plane_mask;
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break;
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case ARTIST_ROP_COPY:
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*dst &= ~plane_mask;
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*dst |= val & plane_mask;
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break;
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case ARTIST_ROP_XOR:
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*dst ^= val & plane_mask;
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break;
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case ARTIST_ROP_NOT_DST:
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*dst ^= plane_mask;
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break;
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case ARTIST_ROP_SET:
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*dst |= plane_mask;
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break;
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default:
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qemu_log_mask(LOG_UNIMP, "%s: unsupported rop %d\n", __func__, op);
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break;
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}
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}
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static void artist_get_cursor_pos(ARTISTState *s, int *x, int *y)
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{
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/*
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* Don't know whether these magic offset values are configurable via
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* some register. They are the same for all resolutions, so don't
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* bother about it.
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*/
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*y = 0x47a - artist_get_y(s->cursor_pos);
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*x = ((artist_get_x(s->cursor_pos) - 338) / 2);
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if (*x > s->width) {
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*x = 0;
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}
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if (*y > s->height) {
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*y = 0;
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}
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}
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static void artist_invalidate_cursor(ARTISTState *s)
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{
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int x, y;
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artist_get_cursor_pos(s, &x, &y);
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artist_invalidate_lines(&s->vram_buffer[ARTIST_BUFFER_AP],
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y, s->cursor_height);
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}
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static void vram_bit_write(ARTISTState *s, int posx, int posy, bool incr_x,
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int size, uint32_t data)
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{
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struct vram_buffer *buf;
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uint32_t vram_bitmask = s->vram_bitmask;
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int mask, i, pix_count, pix_length, offset, height, width;
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uint8_t *data8, *p;
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pix_count = vram_write_pix_per_transfer(s);
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pix_length = vram_pixel_length(s);
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buf = vram_write_buffer(s);
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height = buf->height;
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width = buf->width;
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if (s->cmap_bm_access) {
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offset = s->vram_pos;
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} else {
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offset = posy * width + posx;
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}
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if (!buf->size) {
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qemu_log("write to non-existent buffer\n");
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return;
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}
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p = buf->data;
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if (pix_count > size * 8) {
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pix_count = size * 8;
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}
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if (posy * width + posx + pix_count > buf->size) {
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qemu_log("write outside bounds: wants %dx%d, max size %dx%d\n",
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posx, posy, width, height);
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return;
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}
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switch (pix_length) {
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case 0:
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if (s->image_bitmap_op & 0x20000000) {
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data &= vram_bitmask;
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}
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for (i = 0; i < pix_count; i++) {
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artist_rop8(s, p + offset + pix_count - 1 - i,
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(data & 1) ? (s->plane_mask >> 24) : 0);
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data >>= 1;
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}
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memory_region_set_dirty(&buf->mr, offset, pix_count);
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break;
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case 3:
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if (s->cmap_bm_access) {
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*(uint32_t *)(p + offset) = data;
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break;
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}
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data8 = (uint8_t *)&data;
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for (i = 3; i >= 0; i--) {
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if (!(s->image_bitmap_op & 0x20000000) ||
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s->vram_bitmask & (1 << (28 + i))) {
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artist_rop8(s, p + offset + 3 - i, data8[ROP8OFF(i)]);
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}
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}
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memory_region_set_dirty(&buf->mr, offset, 3);
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break;
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case 6:
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switch (size) {
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default:
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case 4:
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vram_bitmask = s->vram_bitmask;
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break;
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case 2:
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vram_bitmask = s->vram_bitmask >> 16;
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break;
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case 1:
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vram_bitmask = s->vram_bitmask >> 24;
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break;
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}
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for (i = 0; i < pix_count; i++) {
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mask = 1 << (pix_count - 1 - i);
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if (!(s->image_bitmap_op & 0x20000000) ||
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(vram_bitmask & mask)) {
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if (data & mask) {
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artist_rop8(s, p + offset + i, s->fg_color);
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} else {
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if (!(s->image_bitmap_op & 0x10000002)) {
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artist_rop8(s, p + offset + i, s->bg_color);
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}
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}
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}
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}
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memory_region_set_dirty(&buf->mr, offset, pix_count);
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break;
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default:
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qemu_log_mask(LOG_UNIMP, "%s: unknown pixel length %d\n",
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__func__, pix_length);
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break;
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}
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if (incr_x) {
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if (s->cmap_bm_access) {
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s->vram_pos += 4;
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} else {
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s->vram_pos += pix_count << 2;
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}
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}
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if (vram_write_bufidx(s) == ARTIST_BUFFER_CURSOR1 ||
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vram_write_bufidx(s) == ARTIST_BUFFER_CURSOR2) {
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artist_invalidate_cursor(s);
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}
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}
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static void block_move(ARTISTState *s, int source_x, int source_y, int dest_x,
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int dest_y, int width, int height)
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{
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struct vram_buffer *buf;
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int line, endline, lineincr, startcolumn, endcolumn, columnincr, column;
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uint32_t dst, src;
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trace_artist_block_move(source_x, source_y, dest_x, dest_y, width, height);
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if (s->control_plane != 0) {
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/* We don't support CONTROL_PLANE accesses */
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qemu_log_mask(LOG_UNIMP, "%s: CONTROL_PLANE: %08x\n", __func__,
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s->control_plane);
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return;
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}
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buf = &s->vram_buffer[ARTIST_BUFFER_AP];
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if (dest_y > source_y) {
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/* move down */
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line = height - 1;
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endline = -1;
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lineincr = -1;
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} else {
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/* move up */
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line = 0;
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endline = height;
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lineincr = 1;
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}
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if (dest_x > source_x) {
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/* move right */
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startcolumn = width - 1;
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endcolumn = -1;
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columnincr = -1;
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} else {
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/* move left */
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startcolumn = 0;
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endcolumn = width;
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columnincr = 1;
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}
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for ( ; line != endline; line += lineincr) {
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src = source_x + ((line + source_y) * buf->width);
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dst = dest_x + ((line + dest_y) * buf->width);
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for (column = startcolumn; column != endcolumn; column += columnincr) {
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if (dst + column > buf->size || src + column > buf->size) {
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continue;
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}
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artist_rop8(s, buf->data + dst + column, buf->data[src + column]);
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}
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}
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artist_invalidate_lines(buf, dest_y, height);
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}
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static void fill_window(ARTISTState *s, int startx, int starty,
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int width, int height)
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{
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uint32_t offset;
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uint8_t color = artist_get_color(s);
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struct vram_buffer *buf;
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int x, y;
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trace_artist_fill_window(startx, starty, width, height,
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s->image_bitmap_op, s->control_plane);
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if (s->control_plane != 0) {
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/* We don't support CONTROL_PLANE accesses */
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qemu_log_mask(LOG_UNIMP, "%s: CONTROL_PLANE: %08x\n", __func__,
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s->control_plane);
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return;
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}
|
|
|
|
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->data + offset + x, color);
|
|
}
|
|
}
|
|
artist_invalidate_lines(buf, starty, height);
|
|
}
|
|
|
|
static void draw_line(ARTISTState *s, int x1, int y1, int x2, int y2,
|
|
bool update_start, int skip_pix, int max_pix)
|
|
{
|
|
struct vram_buffer *buf;
|
|
uint8_t color;
|
|
int dx, dy, t, e, x, y, incy, diago, horiz;
|
|
bool c1;
|
|
uint8_t *p;
|
|
|
|
trace_artist_draw_line(x1, y1, x2, y2);
|
|
|
|
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;
|
|
}
|
|
if (!dx || !dy) {
|
|
return;
|
|
}
|
|
|
|
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);
|
|
buf = &s->vram_buffer[ARTIST_BUFFER_AP];
|
|
|
|
do {
|
|
if (c1) {
|
|
p = buf->data + x * s->width + y;
|
|
} else {
|
|
p = buf->data + y * s->width + x;
|
|
}
|
|
|
|
if (skip_pix > 0) {
|
|
skip_pix--;
|
|
} else {
|
|
artist_rop8(s, p, color);
|
|
}
|
|
|
|
if (e > 0) {
|
|
artist_invalidate_lines(buf, y, 1);
|
|
y += incy;
|
|
e += diago;
|
|
} else {
|
|
e += horiz;
|
|
}
|
|
x++;
|
|
} while (x <= x2 && (max_pix == -1 || --max_pix > 0));
|
|
}
|
|
|
|
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;
|
|
|
|
int startx = artist_get_x(s->vram_start);
|
|
int starty = artist_get_y(s->vram_start) + s->font_write_pos_y;
|
|
int offset = starty * s->width + startx;
|
|
|
|
buf = &s->vram_buffer[ARTIST_BUFFER_AP];
|
|
|
|
if (offset + 16 > buf->size) {
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < 16; i++) {
|
|
mask = 1 << (15 - i);
|
|
if (val & mask) {
|
|
artist_rop8(s, buf->data + offset + i, color);
|
|
} else {
|
|
if (!(s->image_bitmap_op & 0x20000000)) {
|
|
artist_rop8(s, buf->data + 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?
|
|
*/
|
|
|
|
#ifndef HOST_WORDS_BIGENDIAN
|
|
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_reg_write(void *opaque, hwaddr addr, uint64_t val,
|
|
unsigned size)
|
|
{
|
|
ARTISTState *s = opaque;
|
|
int posx, posy;
|
|
int width, height;
|
|
|
|
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:
|
|
posx = (s->vram_pos >> 2) & 0x7ff;
|
|
posy = (s->vram_pos >> 13) & 0x3ff;
|
|
vram_bit_write(s, posx, posy + s->vram_char_y++, false, size, val);
|
|
break;
|
|
|
|
case VRAM_WRITE_INCR_X:
|
|
case VRAM_WRITE_INCR_X2:
|
|
posx = (s->vram_pos >> 2) & 0x7ff;
|
|
posy = (s->vram_pos >> 13) & 0x3ff;
|
|
vram_bit_write(s, posx, posy + s->vram_char_y, true, size, val);
|
|
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 CMAP_BM_ACCESS:
|
|
combine_write_reg(addr, val, size, &s->cmap_bm_access);
|
|
break;
|
|
|
|
case DST_BM_ACCESS:
|
|
combine_write_reg(addr, val, size, &s->dst_bm_access);
|
|
s->cmap_bm_access = 0;
|
|
break;
|
|
|
|
case SRC_BM_ACCESS:
|
|
combine_write_reg(addr, val, size, &s->src_bm_access);
|
|
s->cmap_bm_access = 0;
|
|
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 0x300200:
|
|
combine_write_reg(addr, val, size, &s->reg_300200);
|
|
break;
|
|
|
|
case 0x300208:
|
|
combine_write_reg(addr, val, size, &s->reg_300208);
|
|
break;
|
|
|
|
case 0x300218:
|
|
combine_write_reg(addr, val, size, &s->reg_300218);
|
|
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:
|
|
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?
|
|
*/
|
|
|
|
#ifndef HOST_WORDS_BIGENDIAN
|
|
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 0x300308:
|
|
case 0x380000:
|
|
break;
|
|
|
|
case 0x300008:
|
|
case 0x380008:
|
|
/*
|
|
* FIFO ready flag. we're not emulating the FIFOs
|
|
* so we're always ready
|
|
*/
|
|
val = 0x10;
|
|
break;
|
|
|
|
case 0x300200:
|
|
val = s->reg_300200;
|
|
break;
|
|
|
|
case 0x300208:
|
|
val = s->reg_300208;
|
|
break;
|
|
|
|
case 0x300218:
|
|
val = s->reg_300218;
|
|
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 void artist_vram_write(void *opaque, hwaddr addr, uint64_t val,
|
|
unsigned size)
|
|
{
|
|
ARTISTState *s = opaque;
|
|
struct vram_buffer *buf;
|
|
int posy = (addr >> 11) & 0x3ff;
|
|
int posx = addr & 0x7ff;
|
|
uint32_t offset;
|
|
trace_artist_vram_write(size, addr, val);
|
|
|
|
if (s->cmap_bm_access) {
|
|
buf = &s->vram_buffer[ARTIST_BUFFER_CMAP];
|
|
if (addr + 3 < buf->size) {
|
|
*(uint32_t *)(buf->data + addr) = val;
|
|
}
|
|
return;
|
|
}
|
|
|
|
buf = vram_write_buffer(s);
|
|
if (!buf->size) {
|
|
return;
|
|
}
|
|
|
|
if (posy > buf->height || posx > buf->width) {
|
|
return;
|
|
}
|
|
|
|
offset = posy * buf->width + posx;
|
|
switch (size) {
|
|
case 4:
|
|
*(uint32_t *)(buf->data + offset) = be32_to_cpu(val);
|
|
memory_region_set_dirty(&buf->mr, offset, 4);
|
|
break;
|
|
case 2:
|
|
*(uint16_t *)(buf->data + offset) = be16_to_cpu(val);
|
|
memory_region_set_dirty(&buf->mr, offset, 2);
|
|
break;
|
|
case 1:
|
|
*(uint8_t *)(buf->data + offset) = val;
|
|
memory_region_set_dirty(&buf->mr, offset, 1);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static uint64_t artist_vram_read(void *opaque, hwaddr addr, unsigned size)
|
|
{
|
|
ARTISTState *s = opaque;
|
|
struct vram_buffer *buf;
|
|
uint64_t val;
|
|
int posy, posx;
|
|
|
|
if (s->cmap_bm_access) {
|
|
buf = &s->vram_buffer[ARTIST_BUFFER_CMAP];
|
|
val = *(uint32_t *)(buf->data + addr);
|
|
trace_artist_vram_read(size, addr, 0, 0, val);
|
|
return 0;
|
|
}
|
|
|
|
buf = vram_read_buffer(s);
|
|
if (!buf->size) {
|
|
return 0;
|
|
}
|
|
|
|
posy = (addr >> 13) & 0x3ff;
|
|
posx = (addr >> 2) & 0x7ff;
|
|
|
|
if (posy > buf->height || posx > buf->width) {
|
|
return 0;
|
|
}
|
|
|
|
val = cpu_to_be32(*(uint32_t *)(buf->data + posy * buf->width + posx));
|
|
trace_artist_vram_read(size, addr, posx, posy, val);
|
|
return val;
|
|
}
|
|
|
|
static const MemoryRegionOps artist_reg_ops = {
|
|
.read = artist_reg_read,
|
|
.write = artist_reg_write,
|
|
.endianness = DEVICE_NATIVE_ENDIAN,
|
|
.valid = {
|
|
.min_access_size = 1,
|
|
.max_access_size = 4,
|
|
},
|
|
};
|
|
|
|
static const MemoryRegionOps artist_vram_ops = {
|
|
.read = artist_vram_read,
|
|
.write = artist_vram_write,
|
|
.endianness = DEVICE_NATIVE_ENDIAN,
|
|
.valid = {
|
|
.min_access_size = 1,
|
|
.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;
|
|
|
|
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 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;
|
|
|
|
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);
|
|
|
|
dpy_gfx_update(s->con, 0, 0, s->width, s->height);
|
|
}
|
|
|
|
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, NULL, 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;
|
|
|
|
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);
|
|
/*
|
|
* no idea whether the cursor is fixed size or not, so assume 32x32 which
|
|
* seems sufficient for HP-UX X11.
|
|
*/
|
|
s->cursor_height = 32;
|
|
s->cursor_width = 32;
|
|
|
|
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 = 1,
|
|
.minimum_version_id = 1,
|
|
.post_load = vmstate_artist_post_load,
|
|
.fields = (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_height, ARTISTState),
|
|
VMSTATE_UINT32(cursor_width, ARTISTState),
|
|
VMSTATE_UINT32(plane_mask, ARTISTState),
|
|
VMSTATE_UINT32(reg_100080, ARTISTState),
|
|
VMSTATE_UINT32(reg_300200, ARTISTState),
|
|
VMSTATE_UINT32(reg_300208, ARTISTState),
|
|
VMSTATE_UINT32(reg_300218, ARTISTState),
|
|
VMSTATE_UINT32(cmap_bm_access, 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;
|
|
dc->reset = 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)
|