summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/bus/isa/ne1000.cpp
diff options
context:
space:
mode:
author Miodrag Milanovic <mmicko@gmail.com>2015-11-08 12:56:12 +0100
committer Miodrag Milanovic <mmicko@gmail.com>2015-11-08 12:56:12 +0100
commit7c19aac60e12d6f5ea301bdb34d7826a01e0b06f (patch)
treef310d86aa2c6bfc19d115307dedde4eb0cd52dad /src/devices/bus/isa/ne1000.cpp
parenta57b46ae933badd7441ce1644711dbb851e2b504 (diff)
Rename *.c -> *.cpp in our source (nw)
Diffstat (limited to 'src/devices/bus/isa/ne1000.cpp')
-rw-r--r--src/devices/bus/isa/ne1000.cpp133
1 files changed, 133 insertions, 0 deletions
diff --git a/src/devices/bus/isa/ne1000.cpp b/src/devices/bus/isa/ne1000.cpp
new file mode 100644
index 00000000000..a62d5e71f8f
--- /dev/null
+++ b/src/devices/bus/isa/ne1000.cpp
@@ -0,0 +1,133 @@
+// license:BSD-3-Clause
+// copyright-holders:Carl
+#include "emu.h"
+#include "ne1000.h"
+
+static MACHINE_CONFIG_FRAGMENT(ne1000_config)
+ MCFG_DEVICE_ADD("dp8390d", DP8390D, 0)
+ MCFG_DP8390D_IRQ_CB(WRITELINE(ne1000_device, ne1000_irq_w))
+ MCFG_DP8390D_MEM_READ_CB(READ8(ne1000_device, ne1000_mem_read))
+ MCFG_DP8390D_MEM_WRITE_CB(WRITE8(ne1000_device, ne1000_mem_write))
+MACHINE_CONFIG_END
+
+const device_type NE1000 = &device_creator<ne1000_device>;
+
+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);
+}