134 lines
3.3 KiB
C++
134 lines
3.3 KiB
C++
#include <broadway/mmio/vi.hpp>
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#include <ircolib/log.hpp>
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#include <mem.hpp>
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namespace weee::core {
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video_interface::video_interface(mem &mem) {
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mem.register_read16_handler(0x0c002000, 0x0c0020ff, [&](ircolib::u32 addr) { return read16(addr); });
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mem.register_read32_handler(0x0c002000, 0x0c0020ff, [&](ircolib::u32 addr) { return read32(addr); });
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mem.register_write16_handler(0x0c002000, 0x0c0020ff,
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[&](ircolib::u32 addr, ircolib::u16 value) { write16(addr, value); });
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mem.register_write32_handler(0x0c002000, 0x0c0020ff,
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[&](ircolib::u32 addr, ircolib::u32 value) { write32(addr, value); });
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}
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ircolib::u16 video_interface::read16(ircolib::u32 addr) {
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switch (addr) {
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case 0x00:
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return vtr.raw;
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case 0x02:
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return dcr.raw;
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case 0x4a:
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return hsr.raw;
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case 0x6c:
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return viclk & 1;
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case 0x70:
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return 0x0280;
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default:
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ircolib::panic("video_interface::read16 from unimplemented addr 0x{:04X}", addr);
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return 0;
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}
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}
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ircolib::u32 video_interface::read32(ircolib::u32 addr) {
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switch (addr) {
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case 0x02:
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return dcr.raw;
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case 0x04:
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return htr0.raw;
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case 0x08:
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return htr1.raw;
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case 0x0c:
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return vto.raw;
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case 0x10:
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return vte.raw;
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case 0x14:
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return bbei.raw;
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case 0x18:
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return bboi.raw;
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case 0x1c:
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return tfbl.raw & 0x1ffffe00;
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case 0x24:
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return bfbl.raw & 0x10fffe00;
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case 0x4c:
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case 0x50:
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case 0x54:
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return fct0[addr - 0x4c].raw;
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case 0x58:
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case 0x5c:
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case 0x60:
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case 0x64:
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return fct1[addr - 0x58].raw;
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default:
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ircolib::panic("video_interface::read32 from unimplemented addr 0x{:04X}", addr);
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return 0;
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}
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}
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void video_interface::write16(ircolib::u32 addr, ircolib::u16 value) {
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switch (addr) {
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case 0x00:
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vtr.raw = value;
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break;
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case 0x02:
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dcr.raw = value;
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break;
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case 0x4a:
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hsr.raw = value;
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break;
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case 0x6c:
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viclk = value & 1;
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break;
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case 0x70:
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break;
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default:
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ircolib::panic("video_interface::write16 to unimplemented addr 0x{:04X} with value 0x{:04X}", addr, value);
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}
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}
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void video_interface::write32(ircolib::u32 addr, ircolib::u32 value) {
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switch (addr) {
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case 0x02:
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dcr.raw = value;
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break;
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case 0x04:
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htr0.raw = value;
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break;
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case 0x08:
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htr1.raw = value;
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break;
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case 0x0c:
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vto.raw = value;
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break;
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case 0x10:
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vte.raw = value;
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break;
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case 0x14:
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bbei.raw = value;
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break;
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case 0x18:
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bboi.raw = value;
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break;
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case 0x1c:
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tfbl.raw = value & 0x1ffffe00;
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break;
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case 0x24:
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bfbl.raw = value & 0x10fffe00;
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break;
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case 0x4c:
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case 0x50:
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case 0x54:
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fct0[addr - 0x4c].raw = value;
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break;
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case 0x58:
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case 0x5c:
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case 0x60:
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case 0x64:
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fct1[addr - 0x58].raw = value;
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break;
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default:
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ircolib::panic("video_interface::write32 to unimplemented addr 0x{:04X} with value 0x{:08X}", addr, value);
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}
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}
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} // namespace weee::core
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