1  /* SPDX-License-Identifier: GPL-2.0-or-later */
 2  
 3  #include "superiotool.h"
 4  
 5  #define DEVICE_ID_BYTE1_REG	0x20
 6  #define DEVICE_ID_BYTE2_REG	0x21
 7  
 8  #define DEVICE_REV_REG		0x1f
 9  
10  static const struct superio_registers reg_table[] = {
11  	/* TODO: M5113 doesn't seem to have ID registers? */
12  	{0x5315, "M1535/M1535D/M1535+/M1535D+", {
13  		{NOLDN, NULL,
14  			{0x1f,0x20,0x21,0x22,0x23,0x2c,0x2d,0x2e,EOT},
15  			{NANA,0x53,0x15,0x00,0x00,RSVD,RSVD,RSVD,EOT}},
16  		{0x0, "Floppy",
17  			{0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,0xf2,0xf4,EOT},
18  			{0x00,0x03,0xf0,0x06,0x02,0x08,0x00,0xff,0x00,EOT}},
19  		{0x3, "Parallel port",
20  			{0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,EOT},
21  			{0x00,0x03,0x78,0x05,0x04,0x8c,0xc5,EOT}},
22  		{0x4, "COM1",
23  			{0x30,0x60,0x61,0x70,0xf0,0xf1,0xf2,EOT},
24  			{0x00,0x03,0xf8,0x04,0x00,0x00,0x0c,EOT}},
25  		{0x5, "COM2",
26  			{0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,0xf2,EOT},
27  			{0x00,0x03,0xe8,0x09,0x04,0x80,0x00,0x0c,EOT}},
28  		{0x7, "Keyboard",
29  			{0x30,0x70,0x72,0xf0,EOT},
30  			{NANA,0x01,0x00,0x00,EOT}},
31  		{0x8, "COM3",
32  			{0x30,0x60,0x61,0x70,0xf0,0xf1,0xf2,EOT},
33  			{0x00,0x02,0xf8,0x03,0x00,0x00,0x0c,EOT}},
34  		{0xc, "Hotkey",
35  			{0x30,0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,EOT},
36  			{0x00,0x35,0x14,0x11,0x71,RSVD,0x05,EOT}},
37  		{EOT}}},
38  	{0x2351, "M512x", {
39  		{EOT}}},
40  	{EOT}
41  };
42  
43  static void enter_conf_mode_ali(uint16_t port)
44  {
45  	OUTB(0x51, port);
46  	OUTB(0x23, port);
47  }
48  
49  static void exit_conf_mode_ali(uint16_t port)
50  {
51  	OUTB(0xbb, port);
52  }
53  
54  void probe_idregs_ali(uint16_t port)
55  {
56  	uint16_t id;
57  	uint8_t rev;
58  
59  	probing_for("ALi", "", port);
60  
61  	enter_conf_mode_ali(port);
62  
63  	id = regval(port, DEVICE_ID_BYTE1_REG) << 8;
64  	id |= regval(port, DEVICE_ID_BYTE2_REG);
65  
66  	/* TODO: Not documented/available on M512x (?) */
67  	rev = regval(port, DEVICE_REV_REG);
68  
69  	if (superio_unknown(reg_table, id)) {
70  		if (verbose)
71  			printf(NOTFOUND "id=0x%04x, rev=0x%02x\n", id, rev);
72  		exit_conf_mode_ali(port);
73  		return;
74  	}
75  
76  	printf("Found ALi %s (id=0x%04x, rev=0x%02x) at 0x%x\n",
77  	       get_superio_name(reg_table, id), id, rev, port);
78  	chip_found = 1;
79  
80  	dump_superio("ALi", reg_table, port, id, LDN_SEL);
81  
82  	exit_conf_mode_ali(port);
83  }
84  
85  void print_ali_chips(void)
86  {
87  	print_vendor_chips("ALi", reg_table);
88  }