#include "emu.h" #include "ne1000.h" static const dp8390_interface ne1000_dp8390_interface = { DEVCB_DEVICE_LINE_MEMBER(DEVICE_SELF_OWNER, ne1000_device, ne1000_irq_w), DEVCB_NULL, DEVCB_DEVICE_MEMBER(DEVICE_SELF_OWNER, ne1000_device, ne1000_mem_read), DEVCB_DEVICE_MEMBER(DEVICE_SELF_OWNER, ne1000_device, ne1000_mem_write) }; static MACHINE_CONFIG_FRAGMENT(ne1000_config) MCFG_DP8390D_ADD("dp8390d", ne1000_dp8390_interface) MACHINE_CONFIG_END const device_type NE1000 = &device_creator; machine_config_constructor ne1000_device::device_mconfig_additions() const { return MACHINE_CONFIG_NAME(ne1000_config); } ne1000_device::ne1000_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : device_t(mconfig, NE1000, "NE1000 Network Adapter", tag, owner, clock, "ne1000", __FILE__), device_isa8_card_interface(mconfig, *this), m_dp8390(*this, "dp8390d") { } void ne1000_device::device_start() { char mac[7]; UINT32 num = rand(); memset(m_prom, 0x57, 16); sprintf(mac+2, "\x1b%c%c%c", (num >> 16) & 0xff, (num >> 8) & 0xff, num & 0xff); mac[0] = 0; mac[1] = 0; // avoid gcc warning memcpy(m_prom, mac, 6); m_dp8390->set_mac(mac); set_isa_device(); m_isa->install_device(0x0300, 0x031f, 0, 0, read8_delegate(FUNC(ne1000_device::ne1000_port_r), this), write8_delegate(FUNC(ne1000_device::ne1000_port_w), this)); } void ne1000_device::device_reset() { memcpy(m_prom, m_dp8390->get_mac(), 6); m_irq = ioport("CONFIG")->read() & 3; } READ8_MEMBER(ne1000_device::ne1000_port_r) { if(offset < 16) { m_dp8390->dp8390_cs(CLEAR_LINE); return m_dp8390->dp8390_r(space, offset, mem_mask); } switch(offset) { case 16: m_dp8390->dp8390_cs(ASSERT_LINE); return m_dp8390->dp8390_r(space, offset, mem_mask); case 31: m_dp8390->dp8390_reset(CLEAR_LINE); return 0; default: logerror("ne1000: invalid register read %02X\n", offset); } return 0; } WRITE8_MEMBER(ne1000_device::ne1000_port_w) { if(offset < 16) { m_dp8390->dp8390_cs(CLEAR_LINE); m_dp8390->dp8390_w(space, offset, data, mem_mask); return; } switch(offset) { case 16: m_dp8390->dp8390_cs(ASSERT_LINE); m_dp8390->dp8390_w(space, offset, data, mem_mask); return; case 31: m_dp8390->dp8390_reset(ASSERT_LINE); return; default: logerror("ne1000: invalid register write %02X\n", offset); } return; } WRITE_LINE_MEMBER(ne1000_device::ne1000_irq_w) { switch(m_irq) { case 0: m_isa->irq2_w(state); break; case 1: m_isa->irq3_w(state); break; case 2: m_isa->irq4_w(state); break; case 3: m_isa->irq5_w(state); break; } } READ8_MEMBER(ne1000_device::ne1000_mem_read) { offset &= ~0xc000; // verify if(offset < 16) return m_prom[offset]; if((offset < (8*1024)) || (offset >= (16*1024))) { logerror("ne1000: invalid memory read %04X\n", offset); return 0xff; } return m_board_ram[offset - (8*1024)]; } WRITE8_MEMBER(ne1000_device::ne1000_mem_write) { offset &= ~0xc000; // verify if((offset < (8*1024)) || (offset >= (16*1024))) { logerror("ne1000: invalid memory write %04X\n", offset); return; } m_board_ram[offset - (8*1024)] = data; } static INPUT_PORTS_START( ne1000 ) PORT_START("CONFIG") PORT_CONFNAME(0x03, 0x01, "NE1000 IRQ jumper (W12-15)") PORT_CONFSETTING( 0x00, "IRQ2/9") PORT_CONFSETTING( 0x01, "IRQ3") PORT_CONFSETTING( 0x02, "IRQ4") PORT_CONFSETTING( 0x03, "IRQ5") //PORT_CONFNAME(0x30, 0x00, "NE1000 IO port jumper (W9-10)") //PORT_CONFSETTING( 0x00, "300") //PORT_CONFSETTING( 0x10, "320") //PORT_CONFSETTING( 0x20, "340") //PORT_CONFSETTING( 0x30, "360") INPUT_PORTS_END ioport_constructor ne1000_device::device_input_ports() const { return INPUT_PORTS_NAME(ne1000); }