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r18615 Saturday 20th October, 2012 at 02:44:23 UTC by R. Belmont
(MESS) Mac: Convert 343-004x RTC/PRAM chip into modern RTC device [R. Belmont]

[src/mess/drivers]	mac.c
[src/mess/includes]	mac.h
[src/mess/machine]	mac.c macadb.c macrtc.c macrtc.h*

trunk/src/mess/machine/mac.c

r18614	r18615
1333	1333	{
1334	1334	val |= 0x08;
1335	1335	}
	1336
	1337	val |= m_rtc->data_r();
1336	1338	}
1337	1339	else if (ADB_IS_EGRET)
1338	1340	{
r18614	r18615
1350	1352	val |= 0x10;
1351	1353	if ((machine().root_device().ioport("MOUSE0")->read() & 0x01) == 0)
1352	1354	val |= 0x08;
	1355
	1356	if (!ADB_IS_PM_CLASS)
	1357	{
	1358	val |= m_rtc->data_r();
	1359	}
1353	1360	}
1354		if (m_rtc_data_out)
1355		val |= 1;
1356	1361	}
1357	1362
1358	1363	//  printf("VIA1 IN_B = %02x (PC %x)\n", val, machine().device("maincpu")->safe_pc());
r18614	r18615
1405	1410	WRITE8_MEMBER(mac_state::mac_via_out_b)
1406	1411	{
1407	1412	device_t *sound = machine().device("custom");
1408		int new_rtc_rTCClk;
1409	1413	//  printf("VIA1 OUT B: %02x (PC %x)\n", data, machine().device("maincpu")->safe_pc());
1410	1414
1411	1415	if (ADB_IS_PM_VIA1)
r18614	r18615
1496	1500	}
1497	1501	}
1498	1502
1499		rtc_write_rTCEnb(data & 0x04);
1500		new_rtc_rTCClk = (data >> 1) & 0x01;
1501		if ((! new_rtc_rTCClk) && (m_rtc_rTCClk))
1502		rtc_shift_data(data & 0x01);
1503		m_rtc_rTCClk = new_rtc_rTCClk;
1504
1505	1503	if (ADB_IS_BITBANG_CLASS)
1506	1504	{
1507	1505	mac_adb_newaction((data & 0x30) >> 4);
	1506
	1507	m_rtc->ce_w((data & 0x04)>>2);
	1508	m_rtc->data_w(data & 0x01);
	1509	m_rtc->clk_w((data >> 1) & 0x01);
1508	1510	}
1509	1511	else if (ADB_IS_EGRET)
1510	1512	{
r18614	r18615
1522	1524	m_cuda->set_byteack((data&0x10) ? 1 : 0);
1523	1525	m_cuda->set_tip((data&0x20) ? 1 : 0);
1524	1526	}
	1527	else if (!ADB_IS_PM_CLASS)
	1528	{
	1529	m_rtc->ce_w((data & 0x04)>>2);
	1530	m_rtc->data_w(data & 0x01);
	1531	m_rtc->clk_w((data >> 1) & 0x01);
	1532	}
1525	1533	}
1526	1534
1527	1535	static void mac_via_irq(device_t *device, int state)
r18614	r18615
1848	1856
1849	1857	m_last_taken_interrupt = -1;
1850	1858
1851		/* initialize real-time clock */
1852		rtc_init();
1853
1854	1859	/* setup the memory overlay */
1855	1860	if (m_model < MODEL_MAC_POWERMAC_6100)   // no overlay for PowerPC
1856	1861	{
r18614	r18615
1902	1907	m_kbd_shift_reg = 0;
1903	1908	m_kbd_shift_count = 0;
1904	1909	m_mouse_bit_x = m_mouse_bit_y = 0;
1905		m_rtc_rTCEnb = 0;
1906		m_rtc_rTCClk = 0;
1907		m_rtc_bit_count = 0;
1908		m_rtc_data_dir = 0;
1909		m_rtc_data_out = 0;
1910		m_rtc_cmd = 0;
1911		m_rtc_write_protect = 0;
1912		m_rtc_state = 0;
1913	1910	m_pm_data_send = m_pm_data_recv = m_pm_ack = m_pm_req = m_pm_dptr = 0;
1914	1911	m_pm_state = 0;
1915	1912	m_last_taken_interrupt = 0;
r18614	r18615
2199	2196	ca2_data ^= 1;
2200	2197	/* signal 1 Hz irq on CA2 input on the VIA */
2201	2198	m_via1->write_ca2(ca2_data);
2202		rtc_incticks();
2203	2199	}
2204	2200
2205	2201	// handle SE/30 vblank IRQ

trunk/src/mess/machine/macrtc.c

r18614	r18615
1	1	/***************************************************************************
2	2
3		macrtc.c - the real-time clock & NVRAM chip used in Macs and the Apple IIgs.
4
5		TODO: convert to a device, share between Mac and IIgs
6
	3	macrtc.c - the real-time clock & NVRAM chip used in early 680x0 Macs,
	4	Apple part numbers 343-0040 (original) and 343-0042 (with extended PRAM)
	5
	6	The IIgs has this chip also, but the VGC contains a relatively
	7	sophisticated logic block that offloads the low-level serial comms
	8	from the CPU, which makes it look quite different to software.
	9
7	10	***************************************************************************/
8	11
9	12	#include "emu.h"
10		#include "includes/mac.h"
	13	#include "macrtc.h"
11	14
12	15	#ifdef MAME_DEBUG
13	16	#define LOG_RTC         0
r18614	r18615
23	26	RTC_STATE_XPWRITE
24	27	};
25	28
26		/* init the rtc core */
27		void mac_state::rtc_init()
	29	//**************************************************************************
	30	//  LIVE DEVICE
	31	//**************************************************************************
	32
	33	// device type definition
	34	const device_type RTC3430042 = &device_creator<rtc3430042_device>;
	35
	36
	37	//-------------------------------------------------
	38	//  rtc4543_device - constructor
	39	//-------------------------------------------------
	40
	41	rtc3430042_device::rtc3430042_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
	42	: device_t(mconfig, RTC3430042, "Apple 343-0042 clock/PRAM", tag, owner, clock),
	43	device_rtc_interface(mconfig, *this),
	44	device_nvram_interface(mconfig, *this)
28	45	{
	46	}
	47
	48	//-------------------------------------------------
	49	//  device_start - device-specific startup
	50	//-------------------------------------------------
	51
	52	void rtc3430042_device::device_start()
	53	{
	54	// allocate timers
	55	m_clock_timer = timer_alloc();
	56	m_clock_timer->adjust(attotime::from_hz(clock() / 32768), 0, attotime::from_hz(clock() / 32768));
	57
	58	// state saving
	59	}
	60
	61	void rtc3430042_device::device_reset()
	62	{
	63	set_current_time(machine());
	64
	65	m_rtc_rTCEnb = 0;
29	66	m_rtc_rTCClk = 0;
	67	m_rtc_bit_count = 0;
	68	m_rtc_data_dir = 0;
	69	m_rtc_data_out = 0;
	70	m_rtc_cmd = 0;
	71	m_rtc_write_protect = 0;
	72	m_rtc_state = 0;
30	73
31		m_rtc_write_protect = 0;
32		m_rtc_rTCEnb = 0;
33		rtc_write_rTCEnb(1);
	74	ce_w(1);
34	75	m_rtc_state = RTC_STATE_NORMAL;
35	76	}
36	77
	78	//-------------------------------------------------
	79	//  device_timer - handler timer events
	80	//-------------------------------------------------
	81
	82	void rtc3430042_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
	83	{
	84	advance_seconds();
	85	}
	86
	87	//-------------------------------------------------
	88	//  rtc_clock_updated - called by the RTC base class when the time changes
	89	//-------------------------------------------------
	90
	91	void rtc3430042_device::rtc_clock_updated(int year, int month, int day, int day_of_week, int hour, int minute, int second)
	92	{
	93	struct tm cur_time, mac_reference;
	94	UINT32 seconds;
	95
	96	cur_time.tm_sec = second;
	97	cur_time.tm_min = minute;
	98	cur_time.tm_hour = hour;
	99	cur_time.tm_mday = day;
	100	cur_time.tm_mon = month-1;
	101	cur_time.tm_year = year+100;    // assumes post-2000 current system time
	102	cur_time.tm_isdst = 0;
	103
	104	/* The count starts on 1st January 1904 */
	105	mac_reference.tm_sec = 0;
	106	mac_reference.tm_min = 0;
	107	mac_reference.tm_hour = 0;
	108	mac_reference.tm_mday = 1;
	109	mac_reference.tm_mon = 0;
	110	mac_reference.tm_year = 4;
	111	mac_reference.tm_isdst = 0;
	112
	113	seconds = difftime(mktime(&cur_time), mktime(&mac_reference));
	114
	115	if (LOG_RTC)
	116	logerror("second count 0x%lX\n", (unsigned long) seconds);
	117
	118	m_rtc_seconds[0] = seconds & 0xff;
	119	m_rtc_seconds[1] = (seconds >> 8) & 0xff;
	120	m_rtc_seconds[2] = (seconds >> 16) & 0xff;
	121	m_rtc_seconds[3] = (seconds >> 24) & 0xff;
	122	}
	123
37	124	/* write the rTCEnb state */
38		void mac_state::rtc_write_rTCEnb(int val)
	125	WRITE_LINE_MEMBER( rtc3430042_device::ce_w )
39	126	{
40		if (val && (! m_rtc_rTCEnb))
	127	if (state && (! m_rtc_rTCEnb))
41	128	{
42	129	/* rTCEnb goes high (inactive) */
43	130	m_rtc_rTCEnb = 1;
r18614	r18615
45	132	m_rtc_data_byte = m_rtc_bit_count = m_rtc_data_dir = m_rtc_data_out = 0;
46	133	m_rtc_state = RTC_STATE_NORMAL;
47	134	}
48		else if ((! val) && m_rtc_rTCEnb)
	135	else if ((!state) && m_rtc_rTCEnb)
49	136	{
50	137	/* rTCEnb goes low (active) */
51	138	m_rtc_rTCEnb = 0;
r18614	r18615
53	140	m_rtc_data_byte = m_rtc_bit_count = m_rtc_data_dir = m_rtc_data_out = 0;
54	141	m_rtc_state = RTC_STATE_NORMAL;
55	142	}
	143
	144	m_rtc_rTCEnb = state;
56	145	}
57	146
	147	WRITE_LINE_MEMBER( rtc3430042_device::clk_w )
	148	{
	149	if ((!state) && (m_rtc_rTCClk))
	150	{
	151	rtc_shift_data(m_data_latch & 0x01);
	152	}
	153
	154	m_rtc_rTCClk = state;
	155	}
	156
	157	READ_LINE_MEMBER( rtc3430042_device::data_r )
	158	{
	159	return m_rtc_data_out;
	160	}
	161
	162	WRITE_LINE_MEMBER( rtc3430042_device::data_w )
	163	{
	164	m_data_latch = state;
	165	}
	166
58	167	/* shift data (called on rTCClk high-to-low transition (?)) */
59		void mac_state::rtc_shift_data(int data)
	168	void rtc3430042_device::rtc_shift_data(int data)
60	169	{
61	170	if (m_rtc_rTCEnb)
62	171	/* if enable line inactive (high), do nothing */
r18614	r18615
79	188	}
80	189	}
81	190
82		/* called every second, to increment the Clock count */
83		void mac_state::rtc_incticks()
84		{
85		if (LOG_RTC)
86		logerror("rtc_incticks called\n");
87
88		if (++m_rtc_seconds[0] == 0)
89		if (++m_rtc_seconds[1] == 0)
90		if (++m_rtc_seconds[2] == 0)
91		++m_rtc_seconds[3];
92
93		/*if (++m_rtc_seconds[4] == 0)
94		if (++m_rtc_seconds[5] == 0)
95		if (++m_rtc_seconds[6] == 0)
96		++m_rtc_seconds[7];*/
97		}
98
99	191	/* Executes a command.
100	192	Called when the first byte after "enable" is received, and when the data byte after a write command
101	193	is received. */
102		void mac_state::rtc_execute_cmd(int data)
	194	void rtc3430042_device::rtc_execute_cmd(int data)
103	195	{
104	196	int i;
105	197
r18614	r18615
113	205	{
114	206	// read command
115	207	if (LOG_RTC)
116		printf("RTC: Reading extended address %x = %x\n", m_rtc_xpaddr, m_rtc_ram[m_rtc_xpaddr]);
	208	printf("RTC: Reading extended address %x = %x\n", m_rtc_xpaddr, m_pram[m_rtc_xpaddr]);
117	209
118	210	m_rtc_data_dir = 1;
119		m_rtc_data_byte = m_rtc_ram[m_rtc_xpaddr];
	211	m_rtc_data_byte = m_pram[m_rtc_xpaddr];
120	212	m_rtc_state = RTC_STATE_NORMAL;
121	213	}
122	214	else
r18614	r18615
131	223	{
132	224	if (LOG_RTC)
133	225	printf("RTC: writing %x to extended address %x\n", data, m_rtc_xpaddr);
134		m_rtc_ram[m_rtc_xpaddr] = data;
	226	m_pram[m_rtc_xpaddr] = data;
135	227	m_rtc_state = RTC_STATE_NORMAL;
136	228	}
137	229	else if (m_rtc_state == RTC_STATE_WRITE)
r18614	r18615
146	238	switch(i)
147	239	{
148	240	case 0: case 1: case 2: case 3:   /* seconds register */
149		case 4: case 5: case 6: case 7:   /* ??? (not described in IM III) */
150		/* after various tries, I assumed m_rtc_seconds[4+i] is mapped to m_rtc_seconds[i] */
151		if (LOG_RTC)
152		logerror("RTC clock write, address = %X, data = %X\n", i, (int) m_rtc_data_byte);
153		m_rtc_seconds[i & 3] = m_rtc_data_byte;
	241	case 4: case 5: case 6: case 7:   /* ??? (not described in IM III) */
	242	{
	243	/* after various tries, I assumed m_rtc_seconds[4+i] is mapped to m_rtc_seconds[i] */
	244	if (LOG_RTC)
	245	logerror("RTC clock write, address = %X, data = %X\n", i, (int) m_rtc_data_byte);
	246	m_rtc_seconds[i & 3] = m_rtc_data_byte;
	247
	248	// TODO: call the base class's time set here
	249	}
154	250	break;
155	251
156	252	case 8: case 9: case 10: case 11:   /* RAM address $10-$13 */
157	253	if (LOG_RTC)
158		printf("RTC RAM write, address = %X, data = %X\n", (i & 3) + 0x10, (int) m_rtc_data_byte);
159		m_rtc_ram[(i & 3) + 0x10] = m_rtc_data_byte;
	254	printf("PRAM write, address = %X, data = %X\n", (i & 3) + 0x10, (int) m_rtc_data_byte);
	255	m_pram[(i & 3) + 0x10] = m_rtc_data_byte;
160	256	break;
161	257
162	258	case 12:
r18614	r18615
177	273	case 24: case 25: case 26: case 27:
178	274	case 28: case 29: case 30: case 31:
179	275	if (LOG_RTC)
180		printf("RTC RAM write, address = %X, data = %X\n", i & 15, (int) m_rtc_data_byte);
181		m_rtc_ram[i & 15] = m_rtc_data_byte;
	276	printf("PRAM write, address = %X, data = %X\n", i & 15, (int) m_rtc_data_byte);
	277	m_pram[i & 15] = m_rtc_data_byte;
182	278	break;
183	279
184	280	default:
r18614	r18615
217	313
218	314	case 8: case 9: case 10: case 11:
219	315	if (LOG_RTC)
220		printf("RTC RAM read, address = %X data = %x\n", (i & 3) + 0x10, m_rtc_ram[(i & 3) + 0x10]);
221		m_rtc_data_byte = m_rtc_ram[(i & 3) + 0x10];
	316	printf("PRAM read, address = %X data = %x\n", (i & 3) + 0x10, m_pram[(i & 3) + 0x10]);
	317	m_rtc_data_byte = m_pram[(i & 3) + 0x10];
222	318	break;
223	319
224	320	case 16: case 17: case 18: case 19:
r18614	r18615
226	322	case 24: case 25: case 26: case 27:
227	323	case 28: case 29: case 30: case 31:
228	324	if (LOG_RTC)
229		printf("RTC RAM read, address = %X data = %x\n", i & 15, m_rtc_ram[i & 15]);
230		m_rtc_data_byte = m_rtc_ram[i & 15];
	325	printf("PRAM read, address = %X data = %x\n", i & 15, m_pram[i & 15]);
	326	m_rtc_data_byte = m_pram[i & 15];
231	327	break;
232	328
233	329	default:
r18614	r18615
251	347	}
252	348	}
253	349
254		/* should save PRAM to file */
255		/* TODO : save write_protect flag, save time difference with host clock */
256		NVRAM_HANDLER( mac )
	350	void rtc3430042_device::nvram_default()
257	351	{
258		mac_state *mac = machine.driver_data<mac_state>();
	352	memset(m_pram, 0, 0x100);
259	353
260		if (read_or_write)
261		{
262		if (LOG_RTC)
263		logerror("Writing PRAM to file\n");
264		file->write(mac->m_rtc_ram, sizeof(mac->m_rtc_ram));
265		}
266		else
267		{
268		if (file)
269		{
270		if (LOG_RTC)
271		logerror("Reading PRAM from file\n");
272		file->read(mac->m_rtc_ram, sizeof(mac->m_rtc_ram));
273		}
274		else
275		{
276		UINT8 *pram = &mac->m_rtc_ram[0];
	354	// some Mac ROMs are buggy in the presence of
	355	// no NVRAM, so let's try to setup some reasonable defaults
	356	m_pram[0] = 0xa8;   // valid
	357	m_pram[4] = 0xcc;
	358	m_pram[5] = 0x0a;
	359	m_pram[6] = 0xcc;
	360	m_pram[7] = 0x0a;
	361	m_pram[0xc] = 0x42;   // XPRAM valid for Plus/SE
	362	m_pram[0xd] = 0x75;
	363	m_pram[0xe] = 0x67;
	364	m_pram[0xf] = 0x73;
	365	m_pram[0x10] = 0x1b;    // volume
	366	m_pram[0x11] = 0x88;
	367	m_pram[0x12] = 0x01;
	368	m_pram[0x13] = 0x4c;
	369	}
277	370
278		if (LOG_RTC)
279		logerror("trashing PRAM\n");
	371	void rtc3430042_device::nvram_read(emu_file &file)
	372	{
	373	file.read(m_pram, 0x100);
	374	}
280	375
281		memset(mac->m_rtc_ram, 0, sizeof(mac->m_rtc_ram));
282
283		// some Mac ROMs are buggy in the presence of
284		// no NVRAM, so let's initialize it right
285		pram[0] = 0xa8;   // valid
286		pram[4] = 0xcc;
287		pram[5] = 0x0a;
288		pram[6] = 0xcc;
289		pram[7] = 0x0a;
290		pram[0xc] = 0x42;   // XPRAM valid for Plus/SE
291		pram[0xd] = 0x75;
292		pram[0xe] = 0x67;
293		pram[0xf] = 0x73;
294		pram[0x10] = 0x18;
295		pram[0x11] = 0x88;
296		pram[0x12] = 0x01;
297		pram[0x13] = 0x4c;
298
299		if (mac->m_model >= MODEL_MAC_II)
300		{
301		pram[0xc] = 0x4e;   // XPRAM valid is different for these
302		pram[0xd] = 0x75;
303		pram[0xe] = 0x4d;
304		pram[0xf] = 0x63;
305		pram[0x77] = 0x01;
306		pram[0x78] = 0xff;
307		pram[0x79] = 0xff;
308		pram[0x7a] = 0xff;
309		pram[0x7b] = 0xdf;
310
311		if (mac->m_model == MODEL_MAC_IICI)
312		{
313		pram[0] = 0xa8;
314		pram[1] = 0x80;
315		pram[2] = 0x4f;
316		pram[3] = 0x48;
317		pram[4] = 0xcc;
318		pram[5] = 0x0a;
319		pram[6] = 0xcc;
320		pram[7] = 0x0a;
321		pram[0x10] = 0x18;
322		pram[0x11] = 0x88;
323		pram[0x12] = 0x03;
324		pram[0x13] = 0xec;
325		pram[0x57] = 0x1f;
326		pram[0x58] = 0x83;
327		pram[0x59] = 0x86;
328		pram[0x81] = 0x86;
329		pram[0x8a] = 0x05;
330		pram[0xb9] = 0xb0;
331		pram[0xf1] = 0x01;
332		pram[0xf3] = 0x02;
333		pram[0xf9] = 0x01;
334		pram[0xfb] = 0x8e;
335		}
336		}
337		}
338
339		{
340		/* Now we copy the host clock into the Mac clock */
341		/* Cool, isn't it ? :-) */
342		system_time systime;
343		struct tm mac_reference;
344		UINT32 seconds;
345
346		machine.base_datetime(systime);
347
348		/* The count starts on 1st January 1904 */
349		mac_reference.tm_sec = 0;
350		mac_reference.tm_min = 0;
351		mac_reference.tm_hour = 0;
352		mac_reference.tm_mday = 1;
353		mac_reference.tm_mon = 0;
354		mac_reference.tm_year = 4;
355		mac_reference.tm_isdst = 0;
356
357		seconds = difftime((time_t) systime.time, mktime(& mac_reference));
358
359		if (LOG_RTC)
360		logerror("second count 0x%lX\n", (unsigned long) seconds);
361
362		mac->m_rtc_seconds[0] = seconds & 0xff;
363		mac->m_rtc_seconds[1] = (seconds >> 8) & 0xff;
364		mac->m_rtc_seconds[2] = (seconds >> 16) & 0xff;
365		mac->m_rtc_seconds[3] = (seconds >> 24) & 0xff;
366		}
367		}
	376	void rtc3430042_device::nvram_write(emu_file &file)
	377	{
	378	file.write(m_pram, 0x100);
368	379	}
369	380
370
371

trunk/src/mess/machine/macrtc.h

r0	r18615
	1	/**********************************************************************
	2
	3	macrtc.h - Apple 343-0042 real time clock and battery RAM
	4	by R. Belmont
	5
	6	**********************************************************************/
	7
	8	#pragma once
	9
	10	#ifndef __RTC3430042_H__
	11	#define __RTC3430042_H__
	12
	13	#include "emu.h"
	14
	15
	16	//**************************************************************************
	17	//  INTERFACE CONFIGURATION MACROS
	18	//**************************************************************************
	19
	20	#define MCFG_RTC3430042_ADD(_tag, _clock) \
	21	MCFG_DEVICE_ADD(_tag, RTC3430042, _clock)
	22
	23
	24
	25	//**************************************************************************
	26	//  TYPE DEFINITIONS
	27	//**************************************************************************
	28
	29	// ======================> rtc3430042_device
	30
	31	class rtc3430042_device :  public device_t,
	32	public device_rtc_interface,
	33	public device_nvram_interface
	34	{
	35	public:
	36	// construction/destruction
	37	rtc3430042_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
	38
	39	DECLARE_WRITE_LINE_MEMBER( ce_w );
	40	DECLARE_WRITE_LINE_MEMBER( clk_w );
	41	DECLARE_READ_LINE_MEMBER( data_r );
	42	DECLARE_WRITE_LINE_MEMBER( data_w );
	43
	44	protected:
	45	// device-level overrides
	46	virtual void device_start();
	47	virtual void device_reset();
	48	virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
	49
	50	// device_rtc_interface overrides
	51	virtual void rtc_clock_updated(int year, int month, int day, int day_of_week, int hour, int minute, int second);
	52	virtual bool rtc_feature_leap_year() { return true; }
	53
	54	// device_nvram_interface overrides
	55	virtual void nvram_default();
	56	virtual void nvram_read(emu_file &file);
	57	virtual void nvram_write(emu_file &file);
	58
	59	private:
	60	/* state of rTCEnb and rTCClk lines */
	61	UINT8 m_rtc_rTCEnb;
	62	UINT8 m_rtc_rTCClk;
	63
	64	/* serial transmit/receive register : bits are shifted in/out of this byte */
	65	UINT8 m_rtc_data_byte;
	66	/* serial transmitted/received bit count */
	67	UINT8 m_rtc_bit_count;
	68	/* direction of the current transfer (0 : VIA->RTC, 1 : RTC->VIA) */
	69	UINT8 m_rtc_data_dir;
	70	/* when rtc_data_dir == 1, state of rTCData as set by RTC (-> data bit seen by VIA) */
	71	UINT8 m_rtc_data_out;
	72
	73	/* set to 1 when command in progress */
	74	UINT8 m_rtc_cmd;
	75
	76	/* write protect flag */
	77	UINT8 m_rtc_write_protect;
	78
	79	/* internal seconds register */
	80	UINT8 m_rtc_seconds[/*8*/4];
	81	/* 20-byte long PRAM, or 256-byte long XPRAM */
	82	UINT8 m_pram[256];
	83	/* current extended address and RTC state */
	84	UINT8 m_rtc_xpaddr;
	85	UINT8 m_rtc_state;
	86	UINT8 m_data_latch;
	87
	88	// timers
	89	emu_timer *m_clock_timer;
	90
	91	void rtc_shift_data(int data);
	92	void rtc_execute_cmd(int data);
	93	};
	94
	95
	96	// device type definition
	97	extern const device_type RTC3430042;
	98
	99	#endif

trunk/src/mess/machine/macadb.c

r18614	r18615
857	857	{
858	858	for (int i = 0; i < 20; i++)
859	859	{
860		m_rtc_ram[i] = m_pm_cmd[1+i];
	860	m_adb_pram[i] = m_pm_cmd[1+i];
861	861	}
862	862	}
863	863	break;
r18614	r18615
869	869
870	870	for (i = 0; i < m_pm_cmd[3]; i++)
871	871	{
872		m_rtc_ram[m_pm_cmd[2] + i] = m_pm_cmd[4+i];
	872	m_adb_pram[m_pm_cmd[2] + i] = m_pm_cmd[4+i];
873	873	}
874	874	}
875	875	break;
r18614	r18615
877	877	case 0x38:  // read time
878	878	{
879	879	m_pm_out[0] = m_pm_out[1] = 4;
880		m_pm_out[2] = m_rtc_seconds[0];
881		m_pm_out[3] = m_rtc_seconds[1];
882		m_pm_out[4] = m_rtc_seconds[2];
883		m_pm_out[5] = m_rtc_seconds[3];
	880	m_pm_out[2] = 0x63; // famous Mac RTC value of 8/27/56 8:35:00 PM
	881	m_pm_out[3] = 0x0b;
	882	m_pm_out[4] = 0xd1;
	883	m_pm_out[5] = 0x78;
884	884	m_pm_slen = 6;
885	885	m_pmu_send_timer->adjust(attotime(0, ATTOSECONDS_IN_USEC(200)));
886	886	}
r18614	r18615
893	893	m_pm_out[0] = m_pm_out[1] = 20;
894	894	for (i = 0; i < 20; i++)
895	895	{
896		m_pm_out[2 + i] = m_rtc_ram[i];
	896	m_pm_out[2 + i] = m_adb_pram[i];
897	897	}
898	898	m_pm_slen = 22;
899	899	m_pmu_send_timer->adjust(attotime(0, ATTOSECONDS_IN_USEC(200)));
r18614	r18615
908	908	m_pm_out[0] = m_pm_out[1] = m_pm_cmd[3];
909	909	for (i = 0; i < m_pm_cmd[3]; i++)
910	910	{
911		m_pm_out[2 + i] = m_rtc_ram[m_pm_cmd[2] + i];
	911	m_pm_out[2 + i] = m_adb_pram[m_pm_cmd[2] + i];
912	912	}
913	913	m_pm_slen = m_pm_out[0] + 2;
914	914	m_pmu_send_timer->adjust(attotime(0, ATTOSECONDS_IN_USEC(200)));

trunk/src/mess/includes/mac.h

r18614	r18615
18	18	#include "machine/ncr539x.h"
19	19	#include "machine/ncr5380.h"
20	20	#include "machine/mackbd.h"
	21	#include "machine/macrtc.h"
21	22	#include "sound/asc.h"
22	23	#include "sound/awacs.h"
23	24
r18614	r18615
144	145	void mac_asc_irq(device_t *device, int state);
145	146	void mac_fdc_set_enable_lines(device_t *device, int enable_mask);
146	147
147
148
149
150
151
152		NVRAM_HANDLER( mac );
153
154		/*----------- defined in video/mac.c -----------*/
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180	148	/*----------- defined in audio/mac.c -----------*/
181	149
182	150	class mac_sound_device : public device_t,
r18614	r18615
229	197	m_539x_2(*this, MAC_539X_2_TAG),
230	198	m_ncr5380(*this, "scsi:ncr5380"),
231	199	m_mackbd(*this, MACKBD_TAG),
	200	m_rtc(*this,"rtc"),
232	201	m_vram(*this,"vram"),
233	202	m_vram16(*this,"vram16")
234	203	{ }
r18614	r18615
246	215	optional_device<ncr539x_device> m_539x_2;
247	216	optional_device<ncr5380_device> m_ncr5380;
248	217	optional_device<mackbd_device> m_mackbd;
	218	optional_device<rtc3430042_device> m_rtc;
249	219
250	220	virtual void machine_start();
251	221	virtual void machine_reset();
r18614	r18615
290	260
291	261	int irq_count, ca1_data, ca2_data;
292	262
293		/* state of rTCEnb and rTCClk lines */
294		UINT8 m_rtc_rTCEnb;
295		UINT8 m_rtc_rTCClk;
296
297		/* serial transmit/receive register : bits are shifted in/out of this byte */
298		UINT8 m_rtc_data_byte;
299		/* serial transmitted/received bit count */
300		UINT8 m_rtc_bit_count;
301		/* direction of the current transfer (0 : VIA->RTC, 1 : RTC->VIA) */
302		UINT8 m_rtc_data_dir;
303		/* when rtc_data_dir == 1, state of rTCData as set by RTC (-> data bit seen by VIA) */
304		UINT8 m_rtc_data_out;
305
306		/* set to 1 when command in progress */
307		UINT8 m_rtc_cmd;
308
309		/* write protect flag */
310		UINT8 m_rtc_write_protect;
311
312		/* internal seconds register */
313		UINT8 m_rtc_seconds[/*8*/4];
314		/* 20-byte long PRAM, or 256-byte long XPRAM */
315		UINT8 m_rtc_ram[256];
316		/* current extended address and RTC state */
317		UINT8 m_rtc_xpaddr;
318		UINT8 m_rtc_state;
319
320	263	// Mac ADB state
321	264	INT32 m_adb_irq_pending, m_adb_waiting_cmd, m_adb_datasize, m_adb_buffer[257];
322	265	INT32 m_adb_state, m_adb_command, m_adb_send, m_adb_timer_ticks, m_adb_extclock, m_adb_direction;
r18614	r18615
446	389	DECLARE_DIRECT_UPDATE_MEMBER(overlay_opbaseoverride);
447	390	private:
448	391	int has_adb();
449		void rtc_init();
450		void rtc_execute_cmd(int data);
451	392	void adb_reset();
452	393	void adb_vblank();
453	394	int adb_pollkbd(int update);
r18614	r18615
467	408	int m_adb_keybaddr;
468	409	int m_adb_keybinitialized, m_adb_currentkeys[2], m_adb_modifiers;
469	410
	411	// PRAM for ADB MCU HLEs (mostly unused now)
	412	UINT8 m_adb_pram[256];
	413
470	414	UINT8 m_oss_regs[0x400];
471	415
472	416	// AMIC for x100 PowerMacs

trunk/src/mess/drivers/mac.c

r18614	r18615
905	905	MCFG_SOUND_ADD("custom", MAC_SOUND, 0)
906	906	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00)
907	907
908		/* nvram */
909		MCFG_NVRAM_HANDLER(mac)
910
911	908	/* devices */
	909	MCFG_RTC3430042_ADD("rtc", XTAL_32_768kHz)
912	910	MCFG_IWM_ADD("fdc", mac_iwm_interface)
913	911	MCFG_LEGACY_FLOPPY_SONY_2_DRIVES_ADD(mac_floppy_interface)
914	912
r18614	r18615
989	987	MCFG_SOUND_ROUTE(0, "lspeaker", 1.0)
990	988	MCFG_SOUND_ROUTE(1, "rspeaker", 1.0)
991	989
992		/* nvram */
993		MCFG_NVRAM_HANDLER(mac)
994
995	990	/* devices */
	991	MCFG_RTC3430042_ADD("rtc", XTAL_32_768kHz)
996	992	MCFG_SCSIBUS_ADD("scsi")
997	993	MCFG_SCSIDEV_ADD("scsi:harddisk1", SCSIHD, SCSI_ID_6)
998	994	MCFG_SCSIDEV_ADD("scsi:harddisk2", SCSIHD, SCSI_ID_5)
r18614	r18615
1027	1023	MCFG_SOUND_ROUTE(0, "lspeaker", 1.0)
1028	1024	MCFG_SOUND_ROUTE(1, "rspeaker", 1.0)
1029	1025
1030		/* nvram */
1031		MCFG_NVRAM_HANDLER(mac)
1032
1033	1026	/* devices */
	1027	MCFG_RTC3430042_ADD("rtc", XTAL_32_768kHz)
1034	1028	MCFG_NUBUS_BUS_ADD("nubus", "maincpu", nubus_intf)
1035	1029	MCFG_NUBUS_SLOT_ADD("nubus","nb9", mac_nubus_cards, "48gc", NULL)
1036	1030	MCFG_NUBUS_SLOT_ADD("nubus","nba", mac_nubus_cards, NULL, NULL)
r18614	r18615
1079	1073	MCFG_SOUND_ROUTE(0, "lspeaker", 1.0)
1080	1074	MCFG_SOUND_ROUTE(1, "rspeaker", 1.0)
1081	1075
1082		/* nvram */
1083		MCFG_NVRAM_HANDLER(mac)
1084
1085	1076	/* devices */
	1077	MCFG_RTC3430042_ADD("rtc", XTAL_32_768kHz)
1086	1078	MCFG_NUBUS_BUS_ADD("nubus", "maincpu", nubus_intf)
1087	1079	MCFG_NUBUS_SLOT_ADD("nubus","nb9", mac_nubus_cards, "48gc", NULL)
1088	1080	MCFG_NUBUS_SLOT_ADD("nubus","nba", mac_nubus_cards, NULL, NULL)
r18614	r18615
1286	1278	MCFG_SOUND_ROUTE(0, "lspeaker", 1.0)
1287	1279	MCFG_SOUND_ROUTE(1, "rspeaker", 1.0)
1288	1280
1289		/* nvram */
1290		MCFG_NVRAM_HANDLER(mac)
1291
1292	1281	/* devices */
	1282	MCFG_RTC3430042_ADD("rtc", XTAL_32_768kHz)
1293	1283	MCFG_SCSIBUS_ADD("scsi")
1294	1284	MCFG_SCSIDEV_ADD("scsi:harddisk1", SCSIHD, SCSI_ID_6)
1295	1285	MCFG_SCSIDEV_ADD("scsi:harddisk2", SCSIHD, SCSI_ID_5)
r18614	r18615
1337	1327	MCFG_SOUND_ROUTE(0, "lspeaker", 1.0)
1338	1328	MCFG_SOUND_ROUTE(1, "rspeaker", 1.0)
1339	1329
1340		/* nvram */
1341		MCFG_NVRAM_HANDLER(mac)
1342
1343	1330	/* devices */
1344	1331	MCFG_SCSIBUS_ADD("scsi")
1345	1332	MCFG_SCSIDEV_ADD("scsi:harddisk1", SCSIHD, SCSI_ID_6)
r18614	r18615
1408	1395	MCFG_SOUND_ROUTE(0, "lspeaker", 1.0)
1409	1396	MCFG_SOUND_ROUTE(1, "rspeaker", 1.0)
1410	1397
1411		/* nvram */
1412		MCFG_NVRAM_HANDLER(mac)
1413
1414	1398	/* devices */
1415	1399	MCFG_SCSIBUS_ADD("scsi")
1416	1400	MCFG_SCSIDEV_ADD("scsi:harddisk1", SCSIHD, SCSI_ID_6)
r18614	r18615
1580	1564	MCFG_SOUND_ROUTE(0, "lspeaker", 1.0)
1581	1565	MCFG_SOUND_ROUTE(1, "rspeaker", 1.0)
1582	1566
1583		/* nvram */
1584		MCFG_NVRAM_HANDLER(mac)
1585
1586	1567	/* devices */
1587	1568	MCFG_SCSIBUS_ADD("scsi")
1588	1569	MCFG_SCSIDEV_ADD("scsi:harddisk1", SCSIHD, SCSI_ID_6)
r18614	r18615
1628	1609	MCFG_SOUND_ROUTE(0, "lspeaker", 1.0)
1629	1610	MCFG_SOUND_ROUTE(1, "rspeaker", 1.0)
1630	1611
1631		/* nvram */
1632		MCFG_NVRAM_HANDLER(mac)
1633
1634	1612	/* devices */
	1613	MCFG_RTC3430042_ADD("rtc", XTAL_32_768kHz)
1635	1614	MCFG_NUBUS_BUS_ADD("nubus", "maincpu", nubus_intf)
1636	1615	MCFG_NUBUS_SLOT_ADD("nubus","nbd", mac_nubus_cards, NULL, NULL)
1637	1616	MCFG_NUBUS_SLOT_ADD("nubus","nbe", mac_nubus_cards, NULL, NULL)

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