diff options
| -rw-r--r-- | drivers/acpi/ibm_acpi.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/acpi/ibm_acpi.c b/drivers/acpi/ibm_acpi.c index faf78d3eac2d..b6ad2ed5fd6c 100644 --- a/drivers/acpi/ibm_acpi.c +++ b/drivers/acpi/ibm_acpi.c @@ -354,6 +354,11 @@ enum { /* Fan control constants */ fan_status_offset = 0x2f, /* EC register 0x2f */ fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) * 0x84 must be read before 0x85 */ + + IBMACPI_FAN_EC_DISENGAGED = 0x40, /* EC mode: tachometer + * disengaged */ + IBMACPI_FAN_EC_AUTO = 0x80, /* EC mode: auto fan + * control */ }; static int ibm_thinkpad_ec_found; @@ -1910,8 +1915,9 @@ static int fan_read(char *p) if ((rc = fan_get_status(&status)) < 0) return rc; - len += sprintf(p + len, "level:\t\t%d\n", status); - + len += sprintf(p + len, "status:\t\t%s\n" + "level:\t\t%d\n", + (status != 0) ? "enabled" : "disabled", status); break; case IBMACPI_FAN_RD_TPEC: @@ -1919,12 +1925,21 @@ static int fan_read(char *p) if ((rc = fan_get_status(&status)) < 0) return rc; - len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 7)); + len += sprintf(p + len, "status:\t\t%s\n", + (status != 0) ? "enabled" : "disabled"); if ((rc = fan_get_speed(&speed)) < 0) return rc; len += sprintf(p + len, "speed:\t\t%d\n", speed); + + if (status & IBMACPI_FAN_EC_DISENGAGED) + /* Disengaged mode takes precedence */ + len += sprintf(p + len, "level:\t\tdisengaged\n"); + else if (status & IBMACPI_FAN_EC_AUTO) + len += sprintf(p + len, "level:\t\tauto\n"); + else + len += sprintf(p + len, "level:\t\t%d\n", status); break; case IBMACPI_FAN_NONE: |