summaryrefslogtreecommitdiffstatshomepage
path: root/src
diff options
context:
space:
mode:
author fulivi <fulivi@users.noreply.github.com>2015-08-13 16:11:32 +0200
committer fulivi <fulivi@users.noreply.github.com>2015-08-17 10:40:01 +0200
commitc3d3c118f7b4becf69e6d53ec22171e6f79f2737 (patch)
tree1e149e5e01530d6772b3c1c4ce9985e15aa9da5a /src
parent79e87536d53e846447a030a25749f18d18e08daa (diff)
hp64k: rs232 port added
Diffstat (limited to 'src')
-rw-r--r--src/mess/drivers/hp64k.c50
1 files changed, 45 insertions, 5 deletions
diff --git a/src/mess/drivers/hp64k.c b/src/mess/drivers/hp64k.c
index 80f48ae7ea4..7f7236c1baa 100644
--- a/src/mess/drivers/hp64k.c
+++ b/src/mess/drivers/hp64k.c
@@ -160,6 +160,7 @@
#include "sound/beep.h"
#include "machine/clock.h"
#include "machine/i8251.h"
+#include "bus/rs232/rs232.h"
#define BIT_MASK(n) (1U << (n))
@@ -224,7 +225,10 @@ public:
DECLARE_WRITE_LINE_MEMBER(hp64k_rts_w);
DECLARE_WRITE16_MEMBER(hp64k_loopback_w);
void hp64k_update_loopback(void);
-
+ DECLARE_WRITE_LINE_MEMBER(hp64k_rs232_rxd_w);
+ DECLARE_WRITE_LINE_MEMBER(hp64k_rs232_dcd_w);
+ DECLARE_WRITE_LINE_MEMBER(hp64k_rs232_cts_w);
+
DECLARE_WRITE16_MEMBER(hp64k_beep_w);
TIMER_DEVICE_CALLBACK_MEMBER(hp64k_beeper_off);
@@ -249,6 +253,7 @@ private:
required_device<clock_device> m_baud_rate;
required_ioport m_s5_sw;
required_device<i8251_device> m_uart;
+ required_device<rs232_port_device> m_rs232;
// Character generator
const UINT8 *m_chargen;
@@ -366,7 +371,8 @@ hp64k_state::hp64k_state(const machine_config &mconfig, device_type type, const
m_beep_timer(*this , "beep_timer"),
m_baud_rate(*this , "baud_rate"),
m_s5_sw(*this , "s5_sw"),
- m_uart(*this , "uart")
+ m_uart(*this , "uart"),
+ m_rs232(*this , "rs232")
{
}
@@ -1010,6 +1016,7 @@ WRITE_LINE_MEMBER(hp64k_state::hp64k_txd_w)
if (m_loopback) {
m_uart->write_rxd(state);
}
+ m_rs232->write_txd(state);
}
WRITE_LINE_MEMBER(hp64k_state::hp64k_dtr_w)
@@ -1018,14 +1025,20 @@ WRITE_LINE_MEMBER(hp64k_state::hp64k_dtr_w)
if (m_loopback) {
m_uart->write_dsr(state);
}
+ m_rs232->write_dtr(state);
}
WRITE_LINE_MEMBER(hp64k_state::hp64k_rts_w)
{
+ if (BIT(m_s5_sw->read() , 0)) {
+ // Full duplex, RTS/ = 0
+ state = 0;
+ }
m_rts_state = state;
if (m_loopback) {
m_uart->write_cts(state);
}
+ m_rs232->write_rts(state);
}
WRITE16_MEMBER(hp64k_state::hp64k_loopback_w)
@@ -1041,9 +1054,30 @@ void hp64k_state::hp64k_update_loopback(void)
m_uart->write_dsr(m_dtr_state);
m_uart->write_cts(m_rts_state);
} else {
- m_uart->write_rxd(1);
- m_uart->write_dsr(1);
- m_uart->write_cts(1);
+ m_uart->write_rxd(m_rs232->rxd_r());
+ m_uart->write_dsr(m_rs232->dcd_r());
+ m_uart->write_cts(m_rs232->cts_r());
+ }
+}
+
+WRITE_LINE_MEMBER(hp64k_state::hp64k_rs232_rxd_w)
+{
+ if (!m_loopback) {
+ m_uart->write_rxd(state);
+ }
+}
+
+WRITE_LINE_MEMBER(hp64k_state::hp64k_rs232_dcd_w)
+{
+ if (!m_loopback) {
+ m_uart->write_dsr(state);
+ }
+}
+
+WRITE_LINE_MEMBER(hp64k_state::hp64k_rs232_cts_w)
+{
+ if (!m_loopback) {
+ m_uart->write_cts(state);
}
}
@@ -1385,6 +1419,12 @@ static MACHINE_CONFIG_START(hp64k , hp64k_state)
MCFG_I8251_TXD_HANDLER(WRITELINE(hp64k_state , hp64k_txd_w));
MCFG_I8251_DTR_HANDLER(WRITELINE(hp64k_state , hp64k_dtr_w));
MCFG_I8251_RTS_HANDLER(WRITELINE(hp64k_state , hp64k_rts_w));
+
+ MCFG_RS232_PORT_ADD("rs232" , default_rs232_devices , NULL)
+ MCFG_RS232_RXD_HANDLER(WRITELINE(hp64k_state , hp64k_rs232_rxd_w))
+ MCFG_RS232_DCD_HANDLER(WRITELINE(hp64k_state , hp64k_rs232_dcd_w))
+ MCFG_RS232_CTS_HANDLER(WRITELINE(hp64k_state , hp64k_rs232_cts_w))
+
MACHINE_CONFIG_END
ROM_START(hp64k)