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r26554 Sunday 8th December, 2013 at 22:27:11 UTC by Barry Rodewald
wicat: added terminal board components (except for the unemulated INS2651 UARTs), added RS232 ports.
[src/mess/drivers]wicat.c

trunk/src/mess/drivers/wicat.c
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1010
1111#include "emu.h"
1212#include "cpu/m68000/m68000.h"
13#include "machine/terminal.h"
13#include "cpu/z8000/z8000.h"
14#include "machine/serial.h"
1415#include "machine/6522via.h"
1516#include "machine/mm58274c.h"
1617#include "machine/mc2661.h"
18#include "machine/im6402.h"
19#include "video/i8275x.h"
20#include "machine/am9517a.h"
1721#include "wicat.lh"
1822
1923class wicat_state : public driver_device
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2125public:
2226   wicat_state(const machine_config &mconfig, device_type type, const char *tag)
2327      : driver_device(mconfig, type, tag)
24//      , m_p_base(*this, "rambase")
28      , m_vram(*this, "vram")
2529      , m_maincpu(*this, "maincpu")
26      , m_terminal(*this, TERMINAL_TAG)
2730      , m_rtc(*this, "rtc")
2831      , m_uart0(*this,"uart0")
2932      , m_uart1(*this,"uart1")
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3235      , m_uart4(*this,"uart4")
3336      , m_uart5(*this,"uart5")
3437      , m_uart6(*this,"uart6")
38      , m_videocpu(*this,"videocpu")
39      , m_videoctrl(*this,"video")
40      , m_videodma(*this,"videodma")
3541   { }
3642
3743   //DECLARE_WRITE8_MEMBER(kbd_put);
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4349   DECLARE_READ8_MEMBER(via_b_r);
4450   DECLARE_WRITE8_MEMBER(via_a_w);
4551   DECLARE_WRITE8_MEMBER(via_b_w);
52   DECLARE_READ8_MEMBER(video_r);
53   DECLARE_WRITE8_MEMBER(video_w);
54
55   UINT32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) { return 0; }
4656private:
4757   UINT8 m_term_data;
4858   virtual void machine_start();
4959   virtual void machine_reset();
50//   required_shared_ptr<UINT16> m_p_base;
60   required_shared_ptr<UINT8> m_vram;
5161   required_device<cpu_device> m_maincpu;
52   required_device<serial_terminal_device> m_terminal;
5362   required_device<mm58274c_device> m_rtc;
5463   required_device<mc2661_device> m_uart0;
5564   required_device<mc2661_device> m_uart1;
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5867   required_device<mc2661_device> m_uart4;
5968   required_device<mc2661_device> m_uart5;
6069   required_device<mc2661_device> m_uart6;
70   required_device<cpu_device> m_videocpu;
71   required_device<i8275x_device> m_videoctrl;
72   required_device<am9517a_device> m_videodma;
6173
6274   UINT8 m_portA;
6375   UINT8 m_portB;
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6779static ADDRESS_MAP_START(wicat_mem, AS_PROGRAM, 16, wicat_state)
6880   ADDRESS_MAP_UNMAP_HIGH
6981   ADDRESS_MAP_GLOBAL_MASK(0xffffff)
70//   AM_RANGE(0x000000, 0x01efff) AM_RAM AM_SHARE("rambase")
7182   AM_RANGE(0x000000, 0x001fff) AM_ROM AM_REGION("c2", 0x0000)
7283   AM_RANGE(0x020000, 0x1fffff) AM_RAM
7384   AM_RANGE(0x200000, 0x2fffff) AM_RAM
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8697   AM_RANGE(0xf00f00, 0xf00fff) AM_READWRITE(invalid_r,invalid_w)
8798ADDRESS_MAP_END
8899
100static ADDRESS_MAP_START(wicat_video_mem, AS_PROGRAM, 16, wicat_state)
101   AM_RANGE(0x0000, 0x7fff) AM_ROM AM_REGION("g2", 0x0000)
102   AM_RANGE(0x8000, 0xffff) AM_RAM
103ADDRESS_MAP_END
89104
105static ADDRESS_MAP_START(wicat_video_io, AS_PROGRAM, 8, wicat_state)
106   // yet to figure out...
107   // 0x0100 - INS2651 USART #1 ?
108   // 0x0200 - INS2651 USART #2 ?
109   AM_RANGE(0x0700,0x0700) AM_DEVREADWRITE("videouart",im6402_device,read,write)  // UART?
110   AM_RANGE(0x0800,0x080f) AM_DEVREADWRITE("videodma",am9517a_device,read,write)  // DMA?
111   AM_RANGE(0x0b00,0x0b03) AM_READWRITE(video_r,video_w)
112   AM_RANGE(0x4000,0x5fff) AM_RAM AM_SHARE("vram") // video RAM?
113   AM_RANGE(0x8000,0x8fff) AM_ROM AM_REGION("g2char",0x0000)
114   AM_RANGE(0x9000,0x9fff) AM_ROM AM_REGION("g2char",0x0000)
115ADDRESS_MAP_END
116
117
90118/* Input ports */
91119static INPUT_PORTS_START( wicat )
92120INPUT_PORTS_END
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169197   m_maincpu->set_input_line(M68K_LINE_BUSERROR, CLEAR_LINE);
170198}
171199
172static serial_terminal_interface terminal_intf =
200READ8_MEMBER(wicat_state::video_r)
173201{
174   DEVCB_NULL
175};
202   switch(offset)
203   {
204   case 0x00:
205      return m_videoctrl->read(space,0);
206   case 0x02:
207      return m_videoctrl->read(space,1);
208   default:
209      return 0xff;
210   }
211}
176212
213WRITE8_MEMBER(wicat_state::video_w)
214{
215   switch(offset)
216   {
217   case 0x00:
218      m_videoctrl->write(space,0,data);
219      break;
220   case 0x02:
221      m_videoctrl->write(space,1,data);
222      break;
223   }
224}
225
226I8275_DISPLAY_PIXELS(wicat_display_pixels)
227{
228   //wicat_state *state = device->machine().driver_data<wicat_state>();
229
230   // TODO
231}
232
233// internal terminal
177234static mc2661_interface wicat_uart0_intf =
178235{
179236   0,  // RXC
180237   0,  // TXC
181   DEVCB_NULL, //DEVCB_DEVICE_LINE_MEMBER(RS232_TAG, serial_port_device, rx),  // RXD in
182   DEVCB_NULL, //DEVCB_DEVICE_LINE_MEMBER(RS232_TAG, serial_port_device, tx),  // RXD out
238   DEVCB_NULL,  // RXD in
239   DEVCB_NULL,  // RXD out
183240   DEVCB_CPU_INPUT_LINE("maincpu",M68K_IRQ_2),  // RXRDY out
184241   DEVCB_NULL,  // TXRDY out
185242   DEVCB_NULL, //DEVCB_DEVICE_LINE_MEMBER(RS232_TAG, rs232_port_device, rts_w),  // RTS out
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189246   DEVCB_NULL   // XSYNC out
190247};
191248
192static mc2661_interface wicat_unused_intf =
249// RS232C ports (x5)
250static mc2661_interface wicat_uart1_intf =
193251{
194252   0,
195253   0,
254   DEVCB_DEVICE_LINE_MEMBER("serial1", serial_port_device, rx),
255   DEVCB_DEVICE_LINE_MEMBER("serial1", serial_port_device, tx),
256   DEVCB_CPU_INPUT_LINE("maincpu",M68K_IRQ_2),  // RXRDY out
196257   DEVCB_NULL,
258   DEVCB_DEVICE_LINE_MEMBER("serial1", rs232_port_device, rts_w),
259   DEVCB_DEVICE_LINE_MEMBER("serial1", rs232_port_device, dtr_w),
260   DEVCB_CPU_INPUT_LINE("maincpu",M68K_IRQ_2),  // TXEMT out
197261   DEVCB_NULL,
262   DEVCB_NULL
263};
264
265static mc2661_interface wicat_uart2_intf =
266{
267   0,
268   0,
269   DEVCB_DEVICE_LINE_MEMBER("serial2", serial_port_device, rx),
270   DEVCB_DEVICE_LINE_MEMBER("serial2", serial_port_device, tx),
271   DEVCB_CPU_INPUT_LINE("maincpu",M68K_IRQ_2),  // RXRDY out
198272   DEVCB_NULL,
273   DEVCB_DEVICE_LINE_MEMBER("serial2", rs232_port_device, rts_w),
274   DEVCB_DEVICE_LINE_MEMBER("serial2", rs232_port_device, dtr_w),
275   DEVCB_CPU_INPUT_LINE("maincpu",M68K_IRQ_2),  // TXEMT out
199276   DEVCB_NULL,
277   DEVCB_NULL
278};
279
280static mc2661_interface wicat_uart3_intf =
281{
282   0,
283   0,
284   DEVCB_DEVICE_LINE_MEMBER("serial3", serial_port_device, rx),
285   DEVCB_DEVICE_LINE_MEMBER("serial3", serial_port_device, tx),
286   DEVCB_CPU_INPUT_LINE("maincpu",M68K_IRQ_2),  // RXRDY out
200287   DEVCB_NULL,
288   DEVCB_DEVICE_LINE_MEMBER("serial3", rs232_port_device, rts_w),
289   DEVCB_DEVICE_LINE_MEMBER("serial3", rs232_port_device, dtr_w),
290   DEVCB_CPU_INPUT_LINE("maincpu",M68K_IRQ_2),  // TXEMT out
201291   DEVCB_NULL,
292   DEVCB_NULL
293};
294
295static mc2661_interface wicat_uart4_intf =
296{
297   0,
298   0,
299   DEVCB_DEVICE_LINE_MEMBER("serial4", serial_port_device, rx),
300   DEVCB_DEVICE_LINE_MEMBER("serial4", serial_port_device, tx),
301   DEVCB_CPU_INPUT_LINE("maincpu",M68K_IRQ_2),  // RXRDY out
202302   DEVCB_NULL,
303   DEVCB_DEVICE_LINE_MEMBER("serial4", rs232_port_device, rts_w),
304   DEVCB_DEVICE_LINE_MEMBER("serial4", rs232_port_device, dtr_w),
305   DEVCB_CPU_INPUT_LINE("maincpu",M68K_IRQ_2),  // TXEMT out
203306   DEVCB_NULL,
204307   DEVCB_NULL
205308};
206309
310static mc2661_interface wicat_uart5_intf =
311{
312   0,
313   0,
314   DEVCB_DEVICE_LINE_MEMBER("serial5", serial_port_device, rx),
315   DEVCB_DEVICE_LINE_MEMBER("serial5", serial_port_device, tx),
316   DEVCB_CPU_INPUT_LINE("maincpu",M68K_IRQ_2),  // RXRDY out
317   DEVCB_NULL,
318   DEVCB_DEVICE_LINE_MEMBER("serial5", rs232_port_device, rts_w),
319   DEVCB_DEVICE_LINE_MEMBER("serial5", rs232_port_device, dtr_w),
320   DEVCB_CPU_INPUT_LINE("maincpu",M68K_IRQ_2),  // TXEMT out
321   DEVCB_NULL,
322   DEVCB_NULL
323};
324
325// modem
326static mc2661_interface wicat_uart6_intf =
327{
328   0,  // RXC
329   0,  // TXC
330   DEVCB_NULL, //DEVCB_DEVICE_LINE_MEMBER(RS232_TAG, serial_port_device, rx),  // RXD in
331   DEVCB_NULL, //DEVCB_DEVICE_LINE_MEMBER(RS232_TAG, serial_port_device, tx),  // RXD out
332   DEVCB_CPU_INPUT_LINE("maincpu",M68K_IRQ_2),  // RXRDY out
333   DEVCB_NULL,  // TXRDY out
334   DEVCB_NULL, //DEVCB_DEVICE_LINE_MEMBER(RS232_TAG, rs232_port_device, rts_w),  // RTS out
335   DEVCB_NULL, //DEVCB_DEVICE_LINE_MEMBER(RS232_TAG, rs232_port_device, dtr_w),  // DTR out
336   DEVCB_CPU_INPUT_LINE("maincpu",M68K_IRQ_2),  // TXEMT out
337   DEVCB_NULL,  // BKDET out
338   DEVCB_NULL   // XSYNC out
339};
340
341struct im6402_interface wicat_video_uart_intf =
342{
343   0,  // RRC
344   0,  // TRC
345
346   DEVCB_NULL, //m_in_rri_cb;
347   DEVCB_NULL, //m_out_tro_cb;
348   DEVCB_NULL, //m_out_dr_cb;
349   DEVCB_NULL, //m_out_tbre_cb;
350   DEVCB_NULL, //m_out_tre_cb;
351};
352
207353static via6522_interface wicat_via_intf =
208354{
209355   DEVCB_DRIVER_MEMBER(wicat_state,via_a_r),  // Port A in
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227373   1   // first day
228374};
229375
376struct rs232_port_interface wicat_serial_intf =
377{
378   DEVCB_NULL,  // RX out
379   DEVCB_NULL,  // DCD out
380   DEVCB_NULL,  // DSR out
381   DEVCB_NULL,  // RI out
382   DEVCB_NULL   // CTS out
383};
384
385AM9517A_INTERFACE( wicat_videodma_intf )
386{
387   DEVCB_NULL, // m_out_hreq_cb;
388   DEVCB_NULL, // m_out_eop_cb;
389
390   DEVCB_NULL, // m_in_memr_cb;
391   DEVCB_NULL, // m_out_memw_cb;
392
393   { DEVCB_NULL,DEVCB_NULL,DEVCB_NULL,DEVCB_NULL }, // m_in_ior_cb[4];
394   { DEVCB_NULL,DEVCB_NULL,DEVCB_NULL,DEVCB_NULL }, // m_out_iow_cb[4];
395   { DEVCB_NULL,DEVCB_NULL,DEVCB_NULL,DEVCB_NULL }  // m_out_dack_cb[4];
396};
397
230398static MACHINE_CONFIG_START( wicat, wicat_state )
231399   /* basic machine hardware */
232400   MCFG_CPU_ADD("maincpu", M68000, XTAL_8MHz) // unknown clock
233401   MCFG_CPU_PROGRAM_MAP(wicat_mem)
234402
235   /* video hardware */
236   MCFG_SERIAL_TERMINAL_ADD(TERMINAL_TAG, terminal_intf, XTAL_5_0688MHz)
237
238403   MCFG_VIA6522_ADD("via",XTAL_4MHz,wicat_via_intf)
239404
240405   MCFG_MM58274C_ADD("rtc",wicat_rtc_intf)  // actually an MM58174AN, but should be compatible
241406
242407   MCFG_MC2661_ADD("uart0", XTAL_5_0688MHz, wicat_uart0_intf)  // connected to terminal board (TODO)
243   MCFG_MC2661_ADD("uart1", XTAL_5_0688MHz, wicat_unused_intf)
244   MCFG_MC2661_ADD("uart2", XTAL_5_0688MHz, wicat_unused_intf)
245   MCFG_MC2661_ADD("uart3", XTAL_5_0688MHz, wicat_unused_intf)
246   MCFG_MC2661_ADD("uart4", XTAL_5_0688MHz, wicat_unused_intf)
247   MCFG_MC2661_ADD("uart5", XTAL_5_0688MHz, wicat_unused_intf)
248   MCFG_MC2661_ADD("uart6", XTAL_5_0688MHz, wicat_unused_intf)  // connected to modem port
408   MCFG_MC2661_ADD("uart1", XTAL_5_0688MHz, wicat_uart1_intf)
409   MCFG_MC2661_ADD("uart2", XTAL_5_0688MHz, wicat_uart2_intf)
410   MCFG_MC2661_ADD("uart3", XTAL_5_0688MHz, wicat_uart3_intf)
411   MCFG_MC2661_ADD("uart4", XTAL_5_0688MHz, wicat_uart4_intf)
412   MCFG_MC2661_ADD("uart5", XTAL_5_0688MHz, wicat_uart5_intf)
413   MCFG_MC2661_ADD("uart6", XTAL_5_0688MHz, wicat_uart6_intf)  // connected to modem port
249414
415   MCFG_RS232_PORT_ADD("serial1",wicat_serial_intf,default_rs232_devices,NULL)
416   MCFG_RS232_PORT_ADD("serial2",wicat_serial_intf,default_rs232_devices,NULL)
417   MCFG_RS232_PORT_ADD("serial3",wicat_serial_intf,default_rs232_devices,NULL)
418   MCFG_RS232_PORT_ADD("serial4",wicat_serial_intf,default_rs232_devices,NULL)
419   MCFG_RS232_PORT_ADD("serial5",wicat_serial_intf,default_rs232_devices,NULL)
420
421   /* video hardware */
422   MCFG_CPU_ADD("videocpu",Z8002,XTAL_8MHz)  // AMD AMZ8002DC
423   MCFG_CPU_PROGRAM_MAP(wicat_video_mem)
424   MCFG_CPU_IO_MAP(wicat_video_io)
425
426   MCFG_AM9517A_ADD("videodma", XTAL_8MHz, wicat_videodma_intf)  // clock is a bit of guess
427   MCFG_IM6402_ADD("videouart", wicat_video_uart_intf)
428   // Also 2x INS2651 USARTs, not yet emulated
429
430   MCFG_SCREEN_ADD("screen",RASTER)
431   MCFG_SCREEN_SIZE(400,300)
432   MCFG_SCREEN_VISIBLE_AREA(0,400-1,0,300-1)
433   MCFG_SCREEN_REFRESH_RATE(60)
434   MCFG_SCREEN_UPDATE_DEVICE("video",i8275x_device,screen_update)
435
436   MCFG_I8275_ADD("video",XTAL_19_6608MHz/8,9,wicat_display_pixels,DEVWRITELINE("videodma",am9517a_device, dreq0_w))
437
250438   MCFG_DEFAULT_LAYOUT(layout_wicat)
439
251440MACHINE_CONFIG_END
252441
253442/* ROM definition */
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313502   ROM_LOAD       ("ascii.chr",  0x00000, 0x0800, CRC(43e26e37) SHA1(f3d5d16040c66f0e827f72a35d4694ca62950949) )
314503   ROM_LOAD       ("apl.chr",    0x00800, 0x0800, CRC(8c6d698e) SHA1(147dd9296fe2efc6140fa148a6edf673c33f9371) )
315504
505   // Winchester Floppy Controller  (Signetics N8X300I + FD1795)
316506   ROM_REGION(0x1800, "wd3", 0)
317507   ROM_LOAD       ("wd3.u95",    0x00000, 0x0800, CRC(80bb0617) SHA1(ac0f3194fcbef77532571baa3fec78b3010528bf) )
318508   ROM_LOAD       ("wd3.u96",    0x00800, 0x0800, CRC(52736e61) SHA1(71c7c9170c733c483393969cb1cb3798b3eb980c) )

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