Enhance debugging messages for the fan subdriver.
Signed-off-by: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
---
Documentation/laptops/thinkpad-acpi.txt | 1 +
drivers/platform/x86/thinkpad_acpi.c | 46 +++++++++++++++++++++++++++---
2 files changed, 42 insertions(+), 5 deletions(-)
diff --git a/Documentation/laptops/thinkpad-acpi.txt b/Documentation/laptops/thinkpad-acpi.txt
index abbbe78..25ed43d 100644
--- a/Documentation/laptops/thinkpad-acpi.txt
+++ b/Documentation/laptops/thinkpad-acpi.txt
@@ -1497,6 +1497,7 @@ to enable more than one output class, just add their values.
0x0004 RF Transmitter control (RFKILL)
(bluetooth, WWAN, UWB...)
0x0008 HKEY event interface, hotkeys
+ 0x0010 Fan control
There is also a kernel build option to enable more debugging
information, which may be necessary to debug driver problems.
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index c8bd563..27c9480 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -191,6 +191,7 @@ enum {
#define TPACPI_DBG_EXIT 0x0002
#define TPACPI_DBG_RFKILL 0x0004
#define TPACPI_DBG_HKEY 0x0008
+#define TPACPI_DBG_FAN 0x0010
#define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off")
#define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled")
@@ -6271,6 +6272,9 @@ static int fan_set_level(int level)
default:
return -ENXIO;
}
+
+ vdbg_printk(TPACPI_DBG_FAN,
+ "fan control: set fan control register to 0x%02x\n", level);
return 0;
}
@@ -6348,6 +6352,11 @@ static int fan_set_enable(void)
}
mutex_unlock(&fan_mutex);
+
+ if (!rc)
+ vdbg_printk(TPACPI_DBG_FAN,
+ "fan control: set fan control register to 0x%02x\n",
+ s);
return rc;
}
@@ -6384,6 +6393,9 @@ static int fan_set_disable(void)
rc = -ENXIO;
}
+ if (!rc)
+ vdbg_printk(TPACPI_DBG_FAN,
+ "fan control: set fan control register to 0\n");
mutex_unlock(&fan_mutex);
return rc;
@@ -6512,6 +6524,9 @@ static ssize_t fan_pwm1_enable_store(struct device *dev,
if (parse_strtoul(buf, 2, &t))
return -EINVAL;
+ tpacpi_disclose_usertask("hwmon pwm1_enable",
+ "set fan mode to %lu\n", t);
+
switch (t) {
case 0:
level = TP_EC_FAN_FULLSPEED;
@@ -6577,6 +6592,9 @@ static ssize_t fan_pwm1_store(struct device *dev,
if (parse_strtoul(buf, 255, &s))
return -EINVAL;
+ tpacpi_disclose_usertask("hwmon pwm1",
+ "set fan speed to %lu\n", s);
+
/* scale down from 0-255 to 0-7 */
newlevel = (s >> 5) & 0x07;
@@ -6643,6 +6661,8 @@ static ssize_t fan_fan_watchdog_store(struct device_driver *drv,
fan_watchdog_maxinterval = t;
fan_watchdog_reset();
+ tpacpi_disclose_usertask("fan_watchdog", "set to %lu\n", t);
+
return count;
}
@@ -6664,7 +6684,8 @@ static int __init fan_init(struct ibm_init_struct *iibm)
{
int rc;
- vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n");
+ vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN,
+ "initializing fan subdriver\n");
mutex_init(&fan_mutex);
fan_status_access_mode = TPACPI_FAN_NONE;
@@ -6723,7 +6744,8 @@ static int __init fan_init(struct ibm_init_struct *iibm)
}
}
- vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n",
+ vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN,
+ "fan is %s, modes %d, %d\n",
str_supported(fan_status_access_mode != TPACPI_FAN_NONE ||
fan_control_access_mode != TPACPI_FAN_WR_NONE),
fan_status_access_mode, fan_control_access_mode);
@@ -6732,7 +6754,7 @@ static int __init fan_init(struct ibm_init_struct *iibm)
if (!fan_control_allowed) {
fan_control_access_mode = TPACPI_FAN_WR_NONE;
fan_control_commands = 0;
- dbg_printk(TPACPI_DBG_INIT,
+ dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN,
"fan control features disabled by parameter\n");
}
@@ -6761,7 +6783,7 @@ static int __init fan_init(struct ibm_init_struct *iibm)
static void fan_exit(void)
{
- vdbg_printk(TPACPI_DBG_EXIT,
+ vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_FAN,
"cancelling any pending fan watchdog tasks\n");
/* FIXME: can we really do this unconditionally? */
@@ -6942,6 +6964,9 @@ static int fan_write_cmd_level(const char *cmd, int *rc)
if (*rc == -ENXIO)
printk(TPACPI_ERR "level command accepted for unsupported "
"access mode %d", fan_control_access_mode);
+ else if (!*rc)
+ tpacpi_disclose_usertask("procfs fan",
+ "set level to %d\n", level);
return 1;
}
@@ -6955,6 +6980,8 @@ static int fan_write_cmd_enable(const char *cmd, int *rc)
if (*rc == -ENXIO)
printk(TPACPI_ERR "enable command accepted for unsupported "
"access mode %d", fan_control_access_mode);
+ else if (!*rc)
+ tpacpi_disclose_usertask("procfs fan", "enable\n");
return 1;
}
@@ -6968,6 +6995,8 @@ static int fan_write_cmd_disable(const char *cmd, int *rc)
if (*rc == -ENXIO)
printk(TPACPI_ERR "disable command accepted for unsupported "
"access mode %d", fan_control_access_mode);
+ else if (!*rc)
+ tpacpi_disclose_usertask("procfs fan", "disable\n");
return 1;
}
@@ -6986,6 +7015,9 @@ static int fan_write_cmd_speed(const char *cmd, int *rc)
if (*rc == -ENXIO)
printk(TPACPI_ERR "speed command accepted for unsupported "
"access mode %d", fan_control_access_mode);
+ else if (!*rc)
+ tpacpi_disclose_usertask("procfs fan",
+ "set speed to %d\n", speed);
return 1;
}
@@ -6999,8 +7031,12 @@ static int fan_write_cmd_watchdog(const char *cmd, int *rc)
if (interval < 0 || interval > 120)
*rc = -EINVAL;
- else
+ else {
fan_watchdog_maxinterval = interval;
+ tpacpi_disclose_usertask("procfs fan",
+ "set watchdog timer to %d\n",
+ interval);
+ }
return 1;
}
--
1.6.2.1
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