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-rw-r--r--src/devices/bus/cpc/smartwatch.c91
1 files changed, 91 insertions, 0 deletions
diff --git a/src/devices/bus/cpc/smartwatch.c b/src/devices/bus/cpc/smartwatch.c
new file mode 100644
index 00000000000..75cc3bb8a89
--- /dev/null
+++ b/src/devices/bus/cpc/smartwatch.c
@@ -0,0 +1,91 @@
+// license:BSD-3-Clause
+// copyright-holders:Barry Rodewald
+/*
+ Dobbertin Smartwatch
+
+ Created: 23/2/2015
+
+ TODO: setting the time (requires the DS1315 core to be able to do this,
+ at the moment it just reads the current time)
+*/
+
+#include "emu.h"
+#include "smartwatch.h"
+#include "includes/amstrad.h"
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+const device_type CPC_SMARTWATCH = &device_creator<cpc_smartwatch_device>;
+
+
+static MACHINE_CONFIG_FRAGMENT( cpc_smartwatch )
+ MCFG_DS1315_ADD("rtc")
+ // no pass-through (?)
+MACHINE_CONFIG_END
+
+machine_config_constructor cpc_smartwatch_device::device_mconfig_additions() const
+{
+ return MACHINE_CONFIG_NAME( cpc_smartwatch );
+}
+
+ROM_START( cpc_smartwatch )
+ ROM_REGION( 0x4000, "exp_rom", 0 )
+ ROM_LOAD( "timerom+.rom", 0x0000, 0x4000, CRC(ed42a147) SHA1(61750d0535a1fbf2a4addad9def332cbcf8917c3) )
+ROM_END
+
+const rom_entry *cpc_smartwatch_device::device_rom_region() const
+{
+ return ROM_NAME( cpc_smartwatch );
+}
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+cpc_smartwatch_device::cpc_smartwatch_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, CPC_SMARTWATCH, "Dobbertin Smartwatch", tag, owner, clock, "cpc_smartwatch", __FILE__),
+ device_cpc_expansion_card_interface(mconfig, *this),
+ m_rtc(*this,"rtc")
+{
+}
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void cpc_smartwatch_device::device_start()
+{
+ m_slot = dynamic_cast<cpc_expansion_slot_device *>(owner());
+}
+
+//-------------------------------------------------
+// device_reset - device-specific reset
+//-------------------------------------------------
+
+void cpc_smartwatch_device::device_reset()
+{
+ device_t* cpu = machine().device(":maincpu");
+ address_space& space = cpu->memory().space(AS_PROGRAM);
+ space.install_read_handler(0xc000,0xc001,0,0,read8_delegate(FUNC(cpc_smartwatch_device::rtc_w),this));
+ space.install_read_handler(0xc004,0xc004,0,0,read8_delegate(FUNC(cpc_smartwatch_device::rtc_r),this));
+ m_bank = membank(":bank7");
+}
+
+READ8_MEMBER(cpc_smartwatch_device::rtc_w)
+{
+ UINT8* bank = (UINT8*)m_bank->base();
+ if(offset & 1)
+ m_rtc->read_1(space,0);
+ else
+ m_rtc->read_0(space,0);
+ return bank[offset & 1];
+}
+
+READ8_MEMBER(cpc_smartwatch_device::rtc_r)
+{
+ UINT8* bank = (UINT8*)m_bank->base();
+ return ((bank[(offset & 1)+4]) & 0xfe) | (m_rtc->read_data(space,0) & 0x01);
+}