in occ/common.c [776:1079]
static int occ_setup_sensor_attrs(struct occ *occ)
{
unsigned int i, s, num_attrs = 0;
struct device *dev = occ->bus_dev;
struct occ_sensors *sensors = &occ->sensors;
struct occ_attribute *attr;
struct temp_sensor_2 *temp;
ssize_t (*show_temp)(struct device *, struct device_attribute *,
char *) = occ_show_temp_1;
ssize_t (*show_freq)(struct device *, struct device_attribute *,
char *) = occ_show_freq_1;
ssize_t (*show_power)(struct device *, struct device_attribute *,
char *) = occ_show_power_1;
ssize_t (*show_caps)(struct device *, struct device_attribute *,
char *) = occ_show_caps_1_2;
switch (sensors->temp.version) {
case 1:
num_attrs += (sensors->temp.num_sensors * 2);
break;
case 2:
num_attrs += (sensors->temp.num_sensors * 4);
show_temp = occ_show_temp_2;
break;
case 0x10:
num_attrs += (sensors->temp.num_sensors * 5);
show_temp = occ_show_temp_10;
break;
default:
sensors->temp.num_sensors = 0;
}
switch (sensors->freq.version) {
case 2:
show_freq = occ_show_freq_2;
fallthrough;
case 1:
num_attrs += (sensors->freq.num_sensors * 2);
break;
default:
sensors->freq.num_sensors = 0;
}
switch (sensors->power.version) {
case 2:
show_power = occ_show_power_2;
fallthrough;
case 1:
num_attrs += (sensors->power.num_sensors * 4);
break;
case 0xA0:
num_attrs += (sensors->power.num_sensors * 16);
show_power = occ_show_power_a0;
break;
default:
sensors->power.num_sensors = 0;
}
switch (sensors->caps.version) {
case 1:
num_attrs += (sensors->caps.num_sensors * 7);
break;
case 3:
show_caps = occ_show_caps_3;
fallthrough;
case 2:
num_attrs += (sensors->caps.num_sensors * 8);
break;
default:
sensors->caps.num_sensors = 0;
}
switch (sensors->extended.version) {
case 1:
num_attrs += (sensors->extended.num_sensors * 3);
break;
default:
sensors->extended.num_sensors = 0;
}
occ->attrs = devm_kzalloc(dev, sizeof(*occ->attrs) * num_attrs,
GFP_KERNEL);
if (!occ->attrs)
return -ENOMEM;
/* null-terminated list */
occ->group.attrs = devm_kzalloc(dev, sizeof(*occ->group.attrs) *
num_attrs + 1, GFP_KERNEL);
if (!occ->group.attrs)
return -ENOMEM;
attr = occ->attrs;
for (i = 0; i < sensors->temp.num_sensors; ++i) {
s = i + 1;
temp = ((struct temp_sensor_2 *)sensors->temp.data) + i;
snprintf(attr->name, sizeof(attr->name), "temp%d_label", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444, show_temp, NULL,
0, i);
attr++;
if (sensors->temp.version == 2 &&
temp->fru_type == OCC_FRU_TYPE_VRM) {
snprintf(attr->name, sizeof(attr->name),
"temp%d_alarm", s);
} else {
snprintf(attr->name, sizeof(attr->name),
"temp%d_input", s);
}
attr->sensor = OCC_INIT_ATTR(attr->name, 0444, show_temp, NULL,
1, i);
attr++;
if (sensors->temp.version > 1) {
snprintf(attr->name, sizeof(attr->name),
"temp%d_fru_type", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444,
show_temp, NULL, 2, i);
attr++;
snprintf(attr->name, sizeof(attr->name),
"temp%d_fault", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444,
show_temp, NULL, 3, i);
attr++;
if (sensors->temp.version == 0x10) {
snprintf(attr->name, sizeof(attr->name),
"temp%d_max", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444,
show_temp, NULL,
4, i);
attr++;
}
}
}
for (i = 0; i < sensors->freq.num_sensors; ++i) {
s = i + 1;
snprintf(attr->name, sizeof(attr->name), "freq%d_label", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444, show_freq, NULL,
0, i);
attr++;
snprintf(attr->name, sizeof(attr->name), "freq%d_input", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444, show_freq, NULL,
1, i);
attr++;
}
if (sensors->power.version == 0xA0) {
/*
* Special case for many-attribute power sensor. Split it into
* a sensor number per power type, emulating several sensors.
*/
for (i = 0; i < sensors->power.num_sensors; ++i) {
unsigned int j;
unsigned int nr = 0;
s = (i * 4) + 1;
for (j = 0; j < 4; ++j) {
snprintf(attr->name, sizeof(attr->name),
"power%d_label", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444,
show_power, NULL,
nr++, i);
attr++;
snprintf(attr->name, sizeof(attr->name),
"power%d_average", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444,
show_power, NULL,
nr++, i);
attr++;
snprintf(attr->name, sizeof(attr->name),
"power%d_average_interval", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444,
show_power, NULL,
nr++, i);
attr++;
snprintf(attr->name, sizeof(attr->name),
"power%d_input", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444,
show_power, NULL,
nr++, i);
attr++;
s++;
}
}
s = (sensors->power.num_sensors * 4) + 1;
} else {
for (i = 0; i < sensors->power.num_sensors; ++i) {
s = i + 1;
snprintf(attr->name, sizeof(attr->name),
"power%d_label", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444,
show_power, NULL, 0, i);
attr++;
snprintf(attr->name, sizeof(attr->name),
"power%d_average", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444,
show_power, NULL, 1, i);
attr++;
snprintf(attr->name, sizeof(attr->name),
"power%d_average_interval", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444,
show_power, NULL, 2, i);
attr++;
snprintf(attr->name, sizeof(attr->name),
"power%d_input", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444,
show_power, NULL, 3, i);
attr++;
}
s = sensors->power.num_sensors + 1;
}
if (sensors->caps.num_sensors >= 1) {
snprintf(attr->name, sizeof(attr->name), "power%d_label", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444, show_caps, NULL,
0, 0);
attr++;
snprintf(attr->name, sizeof(attr->name), "power%d_cap", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444, show_caps, NULL,
1, 0);
attr++;
snprintf(attr->name, sizeof(attr->name), "power%d_input", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444, show_caps, NULL,
2, 0);
attr++;
snprintf(attr->name, sizeof(attr->name),
"power%d_cap_not_redundant", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444, show_caps, NULL,
3, 0);
attr++;
snprintf(attr->name, sizeof(attr->name), "power%d_cap_max", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444, show_caps, NULL,
4, 0);
attr++;
snprintf(attr->name, sizeof(attr->name), "power%d_cap_min", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444, show_caps, NULL,
5, 0);
attr++;
snprintf(attr->name, sizeof(attr->name), "power%d_cap_user",
s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0644, show_caps,
occ_store_caps_user, 6, 0);
attr++;
if (sensors->caps.version > 1) {
snprintf(attr->name, sizeof(attr->name),
"power%d_cap_user_source", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444,
show_caps, NULL, 7, 0);
attr++;
}
}
for (i = 0; i < sensors->extended.num_sensors; ++i) {
s = i + 1;
snprintf(attr->name, sizeof(attr->name), "extn%d_label", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444,
occ_show_extended, NULL, 0, i);
attr++;
snprintf(attr->name, sizeof(attr->name), "extn%d_flags", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444,
occ_show_extended, NULL, 1, i);
attr++;
snprintf(attr->name, sizeof(attr->name), "extn%d_input", s);
attr->sensor = OCC_INIT_ATTR(attr->name, 0444,
occ_show_extended, NULL, 2, i);
attr++;
}
/* put the sensors in the group */
for (i = 0; i < num_attrs; ++i) {
sysfs_attr_init(&occ->attrs[i].sensor.dev_attr.attr);
occ->group.attrs[i] = &occ->attrs[i].sensor.dev_attr.attr;
}
return 0;
}