summaryrefslogtreecommitdiff
path: root/src/mainboard/roda/rk886ex/m3885.c
blob: 6756e0e9b31318130e7109342def0e3d5c84dea5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
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
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
/* SPDX-License-Identifier: GPL-2.0-only */

#include <types.h>
#include <console/console.h>
#include <arch/io.h>
#include <delay.h>

#include <ec/acpi/ec.h>
#include "m3885.h"

#define TH0LOW	80
#define TH0HIGH	85
#define TH0CRIT	120
#define TH1LOW	75
#define TH1HIGH	80

static u8 variables[] = {
     /* Offs,  AND,   OR */
	0x08, 0x48, 0x6C,  /* Keyboard ScanCode Set & LED Data (kState1) */
	0x0a, 0x01, 0x00,  /* Keyboard Shift flags (kState3) */
	0x0c, 0x80, 0x08,  /* Keyboard State flags (kState5) */
	0x11, 0xff, 0x06,  /* Make/Break Debounce #'s (debounce) */
	0x13, 0xff, 0x00,  /* HotKey1 ScanCode (hotKey1) */
	0x14, 0xff, 0x00,  /* HotKey2 ScanCode (hotKey2) */
	0x15, 0xff, 0x3f,  /* HotKey3 ScanCode (hotKey3) */
	0x16, 0xff, 0x00,  /* HotKey4 ScanCode (hotKey4) */
	0x17, 0xff, 0x00,  /* HotKey5 ScanCode (hotKey5) */
	0x18, 0xff, 0x0e,  /* HotKey6 ScanCode (hotKey6) */
	0x19, 0xff, 0x9f,  /* HotKey1 Task = c5 Command Data (keyTsk1) */
	0x1a, 0xff, 0x9f,  /* HotKey2 Task = c5 Command Data (keyTsk2) */
	0x1b, 0xff, 0x6a,  /* HotKey3 Task = c5 Command Data (keyTsk3) */
	0x1c, 0xff, 0x9f,  /* HotKey4 Task = c5 Command Data (keyTsk4) */
	0x1d, 0xff, 0x9f,  /* HotKey5 Task = c5 Command Data (keyTsk5) */
	0x1e, 0xff, 0x87,  /* FuncKey Task = c5 Command Data (funcTsk) */
	0x1f, 0xff, 0x9f,  /* Delayed Task = c5 Command Data (dlyTsk1) */
	0x20, 0xff, 0x9f,  /* Wake-Up Task = c5 Command Data (wakeTsk) */

	0x21, 0xff, 0x08,  /* WigglePin Pulse Width * 2.4ms (tmPulse) */
	0x24, 0xff, 0x30,  /* Keyboard State Flags (kState7) */

	0x2b, 0xff, 0x00,
	0x2c, 0xff, 0x80,  /* Set Fn-Key 8 */
	0x2d, 0xff, 0x02,  /* Set Fn-Key 9 */
	0x2e, 0xff, 0x00,  /* Set Fn-Key 1-8 task  (0 = SMI) */
	0x2f, 0xff, 0x00,  /* Set Fn-Key 9-12 task (1 = SCI) */
};

static u8 matrix[] = {
	0xc1,0xc0,0xd8,0xdb,0xbf,0x05,0x76,0xbf,  /* (0x00-0x07) */
	0xbf,0x80,0x78,0xbf,0xbf,0x07,0x88,0xc2,  /* (0x08-0x0f) */
	0x03,0x09,0xd9,0x16,0xbf,0x06,0x0e,0x81,  /* (0x10-0x17) */
	0xbf,0xbf,0xee,0xbf,0xbf,0x55,0x9a,0x89,  /* (0x18-0x1f) */
	0x1e,0x15,0x36,0xda,0xe8,0xbf,0x0d,0xbf,  /* (0x20-0x27) */
	0xbf,0xbf,0xbf,0xa3,0xbf,0x4e,0x66,0x8b,  /* (0x28-0x2f) */
	0x1d,0x2e,0xe6,0xe7,0xe5,0x1c,0x58,0xbf,  /* (0x30-0x37) */
	0x82,0xbf,0xf0,0xbf,0xbf,0x5b,0x5d,0x8c,  /* (0x38-0x3f) */
	0x22,0x25,0x2c,0x35,0xe1,0x1a,0x96,0xbf,  /* (0x40-0x47) */
	0xbf,0xbf,0xec,0xbf,0xbf,0x54,0xf1,0x8f,  /* (0x48-0x4f) */
	0x1b,0x2a,0x2b,0x32,0xe9,0x31,0x29,0x61,  /* (0x50-0x57) */
	0xbf,0xbf,0x8d,0xbf,0x86,0xc3,0x92,0x93,  /* (0x58-0x5f) */
	0x21,0x23,0x34,0x33,0x41,0xe0,0xbf,0xbf,  /* (0x60-0x67) */
	0xbf,0x85,0xeb,0xbf,0xb6,0xbf,0x91,0xbf,  /* (0x68-0x6f) */
	0x26,0x24,0x2d,0xe3,0xe2,0xe4,0xbf,0xbf,  /* (0x70-0x77) */
	0x87,0xbf,0xea,0xbf,0xbf,0x52,0x90,0x8e,  /* (0x78-0x7f) */
};

static u8 function_ram[] = {
	0x04,0xbd,0x0c,0xbe,0x7e,0x9a,0x8a,0xb6,  /* (0xc0-0xc3) */
	0x92,0x8f,0x93,0x8e,0x81,0x86,0x82,0x87,  /* (0xc4-0xc7) */
	0x8a,0x9a,0x8d,0x7e,0x88,0x84,0x7e,0x78,  /* (0xc8-0xcb) */
	0x77,0x07,0x77,0x98,0x89,0xb2,0x05,0x9b,  /* (0xcc-0xcf) */
	0x78,0x84,0x07,0x88,0x8a,0x7e,0x05,0xa6,  /* (0xd0-0xd3) */
	0x06,0xa7,0x04,0xa8,0x0c,0xa9,0x03,0xaa,  /* (0xd4-0xd7) */
	0x0b,0xc1,0x83,0xc0,0x0a,0xad,0x01,0xae,  /* (0xd8-0xdb) */
	0x09,0xaf,0x78,0xb0,0x07,0xb1,0x1a,0x61,  /* (0xdc-0xdf) */
	0x3b,0x69,0x42,0x72,0x4b,0x7a,0x3c,0x6b,  /* (0xe0-0xe3) */
	0x43,0x73,0x44,0x74,0x3d,0x6c,0x3e,0x75,  /* (0xe4-0xe7) */
	0x46,0x7d,0x3a,0x70,0x49,0x71,0x4a,0x94,  /* (0xe8-0xeb) */
	0x4c,0x79,0x4c,0x7c,0x45,0x7c,0x45,0x79,  /* (0xec-0xef) */
	0x4d,0x7b,0x5a,0x95,0x4c,0x7b,0x45,0x7b,  /* (0xf0-0xf3) */
	0x4d,0x79,0x4d,0x7c,0x4e,0x7b,0x54,0x95,  /* (0xf4-0xf7) */
	0x52,0x7c,0x45,0x94,0x4a,0x79,0xb3,0x95,  /* (0xf8-0xfb) */
	0xb4,0x7b,0xb5,0x7c,0x00,0x00,0x55,0x79,  /* (0xfc-0xff) */
};


#define KBD_DATA	0x60
#define KBD_SC		0x64

#define   KBD_IBF	(1 << 1) /* 1: input buffer full (data ready for ec) */
#define   KBD_OBF	(1 << 0) /* 1: output buffer full (data ready for host) */

static int send_kbd_command(u8 command)
{
	int timeout;

	timeout = 0x7ff;
	while ((inb(KBD_SC) & KBD_IBF) && --timeout) {
		udelay(10);
		if ((timeout & 0xff) == 0)
			printk(BIOS_SPEW, ".");
	}
	if (!timeout) {
		printk(BIOS_DEBUG, "Timeout while sending command 0x%02x to EC!\n",
				command);
	}

	outb(command, KBD_SC);
	return 0;
}

static int send_kbd_data(u8 data)
{
	int timeout;

	timeout = 0x7ff;
	while ((inb(KBD_SC) & KBD_IBF) && --timeout) { /* wait for IBF = 0 */
		udelay(10);
		if ((timeout & 0xff) == 0)
			printk(BIOS_SPEW, ".");
	}
	if (!timeout) {
		printk(BIOS_DEBUG, "Timeout while sending data 0x%02x to EC!\n",
				data);
	}

	outb(data, KBD_DATA);

	return 0;
}


static u8 recv_kbd_data(void)
{
	int timeout;
	u8 data;

	timeout = 0x7fff;
	while (--timeout) { /* Wait for OBF = 1 */
		if (inb(KBD_SC) & KBD_OBF) {
			break;
		}
		udelay(10);
		if ((timeout & 0xff) == 0)
			printk(BIOS_SPEW, ".");
	}
	if (!timeout) {
		printk(BIOS_DEBUG, "\nTimeout while receiving data from EC!\n");
	}

	data = inb(KBD_DATA);

	return data;
}


static u8 m3885_get_variable(u8 index)
{
	u8 ret;

	send_kbd_command(0xb8);
	send_kbd_data(index);
	send_kbd_command(0xbc);
	send_kbd_command(0xff);
	ret = recv_kbd_data();
	printk(BIOS_SPEW, "m3885: get variable %02x = %02x\n", index, ret);
	return ret;
}

static void m3885_set_variable(u8 index, u8 data)
{
	printk(BIOS_SPEW, "m3885: set variable %02x = %02x\n", index, data);
	send_kbd_command(0xb8);
	send_kbd_data(index);
	send_kbd_command(0xbd);
	send_kbd_data(data);
}

static void m3885_set_proc_ram(u8 index, u8 data)
{
	printk(BIOS_SPEW, "m3885: set procram %02x = %02x\n", index, data);
	send_kbd_command(0xb8);
	send_kbd_data(index);
	send_kbd_command(0xbb);
	send_kbd_data(data);
}

static u8 m3885_get_proc_ram(u8 index)
{
	u8 ret;

	send_kbd_command(0xb8);
	send_kbd_data(index);
	send_kbd_command(0xba);
	ret = recv_kbd_data();
	printk(BIOS_SPEW, "m3885: get procram %02x = %02x\n", index, ret);
	return ret;
}

static u8 m3885_read_port(void)
{
	u8 reg8;

	reg8 = m3885_get_variable(0x0c);
	reg8 &= ~(7 << 4);
	reg8 |= (4 << 4);	/* bank 4 */
	m3885_set_variable(0x0c, reg8);

	/* P6YSTATE */
	return m3885_get_proc_ram(0xf8);
}

void m3885_configure_multikey(void)
{
	int i;
	u8 reg8;
	u8 kstate5_flags, offs, maxvars;

	/* RAM bank 0 */
	kstate5_flags = m3885_get_variable(0x0c);
	m3885_set_variable(0x0c, kstate5_flags & ~(7 << 4));

	/* Write Matrix to bank 0 */
	for (i = 0; i < ARRAY_SIZE(matrix); i++) {
		m3885_set_proc_ram(i + 0x80, matrix[i]);
	}


	/* RAM bank 2 */
	m3885_set_variable(0x0c, (kstate5_flags & (~(7 << 4))) | (2 << 4));

	/* Get the number of variables */
	maxvars = m3885_get_variable(0x00);
	printk(BIOS_DEBUG, "M388x has %d variables in bank 2.\n", maxvars);
	if (maxvars >= 35) {
		offs = m3885_get_variable(0x23);
		if ((offs > 0xc0) || (offs < 0x80)) {
			printk(BIOS_DEBUG, "M388x does not have a valid RAM offset (0x%x)\n", offs);
		} else {
			printk(BIOS_DEBUG, "Writing Fn-Table to M388x RAM offset 0x%x\n", offs);
			for (i = 0; i < ARRAY_SIZE(function_ram); i++) {
				m3885_set_proc_ram(i + offs, function_ram[i]);
			}
		}
	} else {
		printk(BIOS_DEBUG, "Could not load Function-RAM (%d).\n", maxvars);
	}

	/* restore original bank */
	m3885_set_variable(0x0c, kstate5_flags);
	maxvars = m3885_get_variable(0x00);
	printk(BIOS_DEBUG, "M388x has %d variables in original bank.\n", maxvars);
	for (i = 0; i < ARRAY_SIZE(variables); i+=3) {
		if(variables[i + 0] > maxvars)
			continue;
		reg8 = m3885_get_variable(variables[i + 0]);
		reg8 &= ~(variables[i + 1]);
		reg8 |= variables[i + 2];
		m3885_set_variable(variables[i + 0], reg8);
	}

	/* OEM Init */

	/* Set Bank 1 */
	m3885_set_variable(0x0c, (kstate5_flags & ~(7 << 4)) | (1 << 4));

	/* Set SMI# at P5.1 */
	/* SMI Control -> p5.1 = EXTSMI# */
	m3885_set_proc_ram(0xff, 0xc1);

	/* Set Fn-Key Task 0 -> SMI#/SCI */
	m3885_set_proc_ram(0x6d, 0x81);

	/* Set Fn-Key Task 1 -> SCI */
	m3885_set_proc_ram(0x6c, 0x80);

	/* Number of Thermal Sensors */
	m3885_set_proc_ram(0xf2, 0x02);

	/* Critical Task */
	m3885_set_proc_ram(0xf3, 0x5d);

	/* Thermal Polling Period */
	m3885_set_proc_ram(0xf9, 0x0a);

	/* ReadPort */

	/* AC PRESN# */
	if (m3885_read_port() & (1 << 0))
		reg8 = 0x8a;
	else
		reg8 = 0x9a;
	m3885_set_proc_ram(0xd0, reg8); /* P60SPEC */

	/* SENSE1# */
	if (m3885_read_port() & (1 << 2))
		reg8 = 0x8a;
	else
		reg8 = 0x9a;
	m3885_set_proc_ram(0xd2, reg8); /* P62SPEC */

	/* SENSE2# */
	if (m3885_read_port() & (1 << 3))
		reg8 = 0x8a;
	else
		reg8 = 0x9a;
	m3885_set_proc_ram(0xd3, reg8); /* P63SPEC */

	/* Low Active Port */
	m3885_set_proc_ram(0xd1, 0x88); /* P61SPEC */
	m3885_set_proc_ram(0xd6, 0x88); /* P66SPEC */
	m3885_set_proc_ram(0xd7, 0x88); /* P67SPEC */

	/* High Active Port */
	m3885_set_proc_ram(0xd4, 0x98); /* P64SPEC */
	m3885_set_proc_ram(0xd5, 0x98); /* P65SPEC */

	/* Set P60TASK-P67TASK */
	/* SCI */
	m3885_set_proc_ram(0xda, 0x80); /* P62TASK SENSE1# */
	m3885_set_proc_ram(0xdb, 0x80); /* P63TASK SENSE2# */
	m3885_set_proc_ram(0xdd, 0x80); /* P65TASK PROCHOT */
	m3885_set_proc_ram(0xde, 0x80); /* P65TASK THERMTRIP# */
	m3885_set_proc_ram(0xdf, 0x80); /* P65TASK PME# */
	/* SMI/SCI */
	m3885_set_proc_ram(0xd8, 0x81); /* P60TASK, AC_PRESN# */
	m3885_set_proc_ram(0xd9, 0x81); /* P61TASK, LID# */
	m3885_set_proc_ram(0xdc, 0x81); /* P64TASK, FDD/LPT# */

	/* Thermal */
	/* Bank 5 */
	m3885_set_variable(0x0c, (kstate5_flags & ~(7 << 4)) | (5 << 4));

	/* Thermal 0: Active cooling, Speed Step Down */
	m3885_set_proc_ram(0x81, 0x9c);    /* THRM0 */
	m3885_set_proc_ram(0x82, 0x01);    /* THRM0 CMD */
	m3885_set_proc_ram(0x84, TH0LOW);  /* THRM0 LOW */
	m3885_set_proc_ram(0x85, TH0HIGH); /* THRM0 HIGH */
	m3885_set_proc_ram(0x86, 0x81);    /* Set Task SMI#/SCI */
	m3885_set_proc_ram(0x87, TH0CRIT); /* THRM0 CRIT */

	/* Thermal 1: Passive cooling, Fan On */
	m3885_set_proc_ram(0x89, 0x9c);    /* THRM1 */
	m3885_set_proc_ram(0x8a, 0x01);    /* THRM1 CMD */
	m3885_set_proc_ram(0x8c, TH1LOW);  /* THRM1 LOW */
	m3885_set_proc_ram(0x8d, TH1HIGH); /* THRM1 HIGH */
	m3885_set_proc_ram(0x8e, 0x81);    /* Set Task SMI#/SCI */

	/* Switch Task to SMI */
	udelay(100 * 1000); /* 100ms */
	outb(KBD_SC, 0xca);
	udelay(100 * 1000); /* 100ms */
	outb(KBD_DATA, 0x17);

	/* Set P22 to high level, keyboard backlight default off */
	udelay(100 * 1000); /* 100ms */
	outb(KBD_SC, 0xc5);
	udelay(100 * 1000); /* 100ms */
	outb(KBD_DATA, 0x4a);
}

u8 m3885_gpio(u8 value)
{
	/* First write data */
	ec_write(M3885_CMDAT1, value);

	/* Issue command: ACCESS GPIO */
	ec_write(M3885_CMCMD, 0xc5);
	return 0;
}