1  /* SPDX-License-Identifier: GPL-2.0-or-later */
 2  
 3  #include "superiotool.h"
 4  
 5  #define DEVICE_ID_REG		0x20
 6  #define DEVICE_REV_REG		0x21
 7  
 8  static const struct superio_registers reg_table[] = {
 9  	{0x0b, "SLB9635TT12", {
10  		{NOLDN, NULL,
11  			{0x20,0x21,0x26,0x27,EOT},
12  			{0x0b,0x00,NANA,NANA,EOT}},
13  		{0, NULL,
14  			{0x30,0x38,0x60,0x61,0x70,0x71,0xf1,0xf2,0xf3,0xf4,0xf5,EOT},
15  			{0x00,0x00,NANA,NANA,0x00,0x02,0xd1,0x15,0x0b,0x00,NANA,EOT}},
16  		{EOT}}},
17  	{EOT}
18  };
19  
20  /* same as some SMSC */
21  static void enter_conf_mode_infineon(uint16_t port)
22  {
23  	OUTB(0x55, port);
24  }
25  
26  static void exit_conf_mode_infineon(uint16_t port)
27  {
28  	OUTB(0xaa, port);
29  }
30  
31  void probe_idregs_infineon(uint16_t port)
32  {
33  	uint8_t rev, devid;
34  
35  	probing_for("Infineon", "", port);
36  
37  	enter_conf_mode_infineon(port);
38  
39  	devid = regval(port, DEVICE_ID_REG);
40  	rev = regval(port, DEVICE_REV_REG);
41  
42  	if (superio_unknown(reg_table, devid)) {
43  		if (verbose)
44  			printf(NOTFOUND "id=0x%02x, rev=0x%02x\n", devid, rev);
45  		exit_conf_mode_infineon(port);
46  		return;
47  	}
48  
49  	/* Attempt to prevent false matches on SMSC FDC37N972, see smsc.c */
50  	if (((regval(port, 0x27)<<8)|regval(port, 0x26)) != port) {
51  		if (verbose)
52  			printf(NOTFOUND "id=0x%02x, rev=0x%02x\n", devid, rev);
53  		exit_conf_mode_infineon(port);
54  		return;
55  	}
56  
57  	printf("Found Infineon %s (id=0x%02x, rev=0x%02x) at 0x%x\n",
58  	       get_superio_name(reg_table, devid), devid, rev, port);
59  	chip_found = 1;
60  
61  	dump_superio("Infineon", reg_table, port, devid, LDN_SEL);
62  
63  	exit_conf_mode_infineon(port);
64  }
65  
66  void print_infineon_chips(void)
67  {
68  	print_vendor_chips("Infineon", reg_table);
69  }