1
2
3#define pr_fmt(fmt) "ipmi_hardcode: " fmt
4
5#include <linux/moduleparam.h>
6#include <linux/platform_device.h>
7#include "ipmi_si.h"
8#include "ipmi_plat_data.h"
9
10
11
12
13
14
15#define SI_MAX_PARMS 4
16
17#define MAX_SI_TYPE_STR 30
18static char si_type_str[MAX_SI_TYPE_STR] __initdata;
19static unsigned long addrs[SI_MAX_PARMS];
20static unsigned int num_addrs;
21static unsigned int ports[SI_MAX_PARMS];
22static unsigned int num_ports;
23static int irqs[SI_MAX_PARMS] __initdata;
24static unsigned int num_irqs __initdata;
25static int regspacings[SI_MAX_PARMS] __initdata;
26static unsigned int num_regspacings __initdata;
27static int regsizes[SI_MAX_PARMS] __initdata;
28static unsigned int num_regsizes __initdata;
29static int regshifts[SI_MAX_PARMS] __initdata;
30static unsigned int num_regshifts __initdata;
31static int slave_addrs[SI_MAX_PARMS] __initdata;
32static unsigned int num_slave_addrs __initdata;
33
34module_param_string(type, si_type_str, MAX_SI_TYPE_STR, 0);
35MODULE_PARM_DESC(type, "Defines the type of each interface, each"
36 " interface separated by commas. The types are 'kcs',"
37 " 'smic', and 'bt'. For example si_type=kcs,bt will set"
38 " the first interface to kcs and the second to bt");
39module_param_hw_array(addrs, ulong, iomem, &num_addrs, 0);
40MODULE_PARM_DESC(addrs, "Sets the memory address of each interface, the"
41 " addresses separated by commas. Only use if an interface"
42 " is in memory. Otherwise, set it to zero or leave"
43 " it blank.");
44module_param_hw_array(ports, uint, ioport, &num_ports, 0);
45MODULE_PARM_DESC(ports, "Sets the port address of each interface, the"
46 " addresses separated by commas. Only use if an interface"
47 " is a port. Otherwise, set it to zero or leave"
48 " it blank.");
49module_param_hw_array(irqs, int, irq, &num_irqs, 0);
50MODULE_PARM_DESC(irqs, "Sets the interrupt of each interface, the"
51 " addresses separated by commas. Only use if an interface"
52 " has an interrupt. Otherwise, set it to zero or leave"
53 " it blank.");
54module_param_hw_array(regspacings, int, other, &num_regspacings, 0);
55MODULE_PARM_DESC(regspacings, "The number of bytes between the start address"
56 " and each successive register used by the interface. For"
57 " instance, if the start address is 0xca2 and the spacing"
58 " is 2, then the second address is at 0xca4. Defaults"
59 " to 1.");
60module_param_hw_array(regsizes, int, other, &num_regsizes, 0);
61MODULE_PARM_DESC(regsizes, "The size of the specific IPMI register in bytes."
62 " This should generally be 1, 2, 4, or 8 for an 8-bit,"
63 " 16-bit, 32-bit, or 64-bit register. Use this if you"
64 " the 8-bit IPMI register has to be read from a larger"
65 " register.");
66module_param_hw_array(regshifts, int, other, &num_regshifts, 0);
67MODULE_PARM_DESC(regshifts, "The amount to shift the data read from the."
68 " IPMI register, in bits. For instance, if the data"
69 " is read from a 32-bit word and the IPMI data is in"
70 " bit 8-15, then the shift would be 8");
71module_param_hw_array(slave_addrs, int, other, &num_slave_addrs, 0);
72MODULE_PARM_DESC(slave_addrs, "Set the default IPMB slave address for"
73 " the controller. Normally this is 0x20, but can be"
74 " overridden by this parm. This is an array indexed"
75 " by interface number.");
76
77static void __init ipmi_hardcode_init_one(const char *si_type_str,
78 unsigned int i,
79 unsigned long addr,
80 enum ipmi_addr_space addr_space)
81{
82 struct ipmi_plat_data p;
83
84 memset(&p, 0, sizeof(p));
85
86 p.iftype = IPMI_PLAT_IF_SI;
87 if (!si_type_str || !*si_type_str || strcmp(si_type_str, "kcs") == 0) {
88 p.type = SI_KCS;
89 } else if (strcmp(si_type_str, "smic") == 0) {
90 p.type = SI_SMIC;
91 } else if (strcmp(si_type_str, "bt") == 0) {
92 p.type = SI_BT;
93 } else if (strcmp(si_type_str, "invalid") == 0) {
94
95
96
97
98 p.type = SI_TYPE_INVALID;
99 } else {
100 pr_warn("Interface type specified for interface %d, was invalid: %s\n",
101 i, si_type_str);
102 return;
103 }
104
105 p.regsize = regsizes[i];
106 p.slave_addr = slave_addrs[i];
107 p.addr_source = SI_HARDCODED;
108 p.regshift = regshifts[i];
109 p.regsize = regsizes[i];
110 p.addr = addr;
111 p.space = addr_space;
112
113 ipmi_platform_add("hardcode-ipmi-si", i, &p);
114}
115
116void __init ipmi_hardcode_init(void)
117{
118 unsigned int i;
119 char *str;
120 char *si_type[SI_MAX_PARMS];
121
122 memset(si_type, 0, sizeof(si_type));
123
124
125 str = si_type_str;
126 if (*str != '\0') {
127 for (i = 0; (i < SI_MAX_PARMS) && (*str != '\0'); i++) {
128 si_type[i] = str;
129 str = strchr(str, ',');
130 if (str) {
131 *str = '\0';
132 str++;
133 } else {
134 break;
135 }
136 }
137 }
138
139 for (i = 0; i < SI_MAX_PARMS; i++) {
140 if (i < num_ports && ports[i])
141 ipmi_hardcode_init_one(si_type[i], i, ports[i],
142 IPMI_IO_ADDR_SPACE);
143 if (i < num_addrs && addrs[i])
144 ipmi_hardcode_init_one(si_type[i], i, addrs[i],
145 IPMI_MEM_ADDR_SPACE);
146 }
147}
148
149
150void ipmi_si_hardcode_exit(void)
151{
152 ipmi_remove_platform_device_by_name("hardcode-ipmi-si");
153}
154
155
156
157
158
159int ipmi_si_hardcode_match(int addr_space, unsigned long addr)
160{
161 unsigned int i;
162
163 if (addr_space == IPMI_IO_ADDR_SPACE) {
164 for (i = 0; i < num_ports; i++) {
165 if (ports[i] == addr)
166 return 1;
167 }
168 } else {
169 for (i = 0; i < num_addrs; i++) {
170 if (addrs[i] == addr)
171 return 1;
172 }
173 }
174
175 return 0;
176}
177
