Commit bf0a40b7 authored by Len Brown's avatar Len Brown

Pull thinkpad into release branch

parents 2cde4afa 32afbf07
......@@ -105,10 +105,15 @@ The version of thinkpad-acpi's sysfs interface is exported by the driver
as a driver attribute (see below).
Sysfs driver attributes are on the driver's sysfs attribute space,
for 2.6.20 this is /sys/bus/platform/drivers/thinkpad_acpi/.
for 2.6.23 this is /sys/bus/platform/drivers/thinkpad_acpi/ and
/sys/bus/platform/drivers/thinkpad_hwmon/
Sysfs device attributes are on the driver's sysfs attribute space,
for 2.6.20 this is /sys/devices/platform/thinkpad_acpi/.
Sysfs device attributes are on the thinkpad_acpi device sysfs attribute
space, for 2.6.23 this is /sys/devices/platform/thinkpad_acpi/.
Sysfs device attributes for the sensors and fan are on the
thinkpad_hwmon device's sysfs attribute space, but you should locate it
looking for a hwmon device with the name attribute of "thinkpad".
Driver version
--------------
......@@ -766,7 +771,7 @@ Temperature sensors
-------------------
procfs: /proc/acpi/ibm/thermal
sysfs device attributes: (hwmon) temp*_input
sysfs device attributes: (hwmon "thinkpad") temp*_input
Most ThinkPads include six or more separate temperature sensors but only
expose the CPU temperature through the standard ACPI methods. This
......@@ -989,7 +994,9 @@ Fan control and monitoring: fan speed, fan enable/disable
---------------------------------------------------------
procfs: /proc/acpi/ibm/fan
sysfs device attributes: (hwmon) fan_input, pwm1, pwm1_enable
sysfs device attributes: (hwmon "thinkpad") fan1_input, pwm1,
pwm1_enable
sysfs hwmon driver attributes: fan_watchdog
NOTE NOTE NOTE: fan control operations are disabled by default for
safety reasons. To enable them, the module parameter "fan_control=1"
......@@ -1131,7 +1138,7 @@ hwmon device attribute fan1_input:
which can take up to two minutes. May return rubbish on older
ThinkPads.
driver attribute fan_watchdog:
hwmon driver attribute fan_watchdog:
Fan safety watchdog timer interval, in seconds. Minimum is
1 second, maximum is 120 seconds. 0 disables the watchdog.
......@@ -1233,3 +1240,9 @@ Sysfs interface changelog:
layer, the radio switch generates input event EV_RADIO,
and the driver enables hot key handling by default in
the firmware.
0x020000: ABI fix: added a separate hwmon platform device and
driver, which must be located by name (thinkpad)
and the hwmon class for libsensors4 (lm-sensors 3)
compatibility. Moved all hwmon attributes to this
new platform device.
......@@ -22,7 +22,7 @@
*/
#define IBM_VERSION "0.16"
#define TPACPI_SYSFS_VERSION 0x010000
#define TPACPI_SYSFS_VERSION 0x020000
/*
* Changelog:
......@@ -117,6 +117,12 @@ IBM_BIOS_MODULE_ALIAS("K[U,X-Z]");
#define __unused __attribute__ ((unused))
static enum {
TPACPI_LIFE_INIT = 0,
TPACPI_LIFE_RUNNING,
TPACPI_LIFE_EXITING,
} tpacpi_lifecycle;
/****************************************************************************
****************************************************************************
*
......@@ -342,6 +348,9 @@ static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data)
{
struct ibm_struct *ibm = data;
if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING)
return;
if (!ibm || !ibm->acpi || !ibm->acpi->notify)
return;
......@@ -517,8 +526,10 @@ static char *next_cmd(char **cmds)
****************************************************************************/
static struct platform_device *tpacpi_pdev;
static struct platform_device *tpacpi_sensors_pdev;
static struct class_device *tpacpi_hwmon;
static struct input_dev *tpacpi_inputdev;
static struct mutex tpacpi_inputdev_send_mutex;
static int tpacpi_resume_handler(struct platform_device *pdev)
......@@ -543,6 +554,12 @@ static struct platform_driver tpacpi_pdriver = {
.resume = tpacpi_resume_handler,
};
static struct platform_driver tpacpi_hwmon_pdriver = {
.driver = {
.name = IBM_HWMON_DRVR_NAME,
.owner = THIS_MODULE,
},
};
/*************************************************************************
* thinkpad-acpi driver attributes
......@@ -692,6 +709,8 @@ static int parse_strtoul(const char *buf,
{
char *endp;
while (*buf && isspace(*buf))
buf++;
*value = simple_strtoul(buf, &endp, 0);
while (*endp && isspace(*endp))
endp++;
......@@ -989,6 +1008,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
int res, i;
int status;
int hkeyv;
vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n");
......@@ -1014,18 +1034,35 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
return res;
/* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p,
A30, R30, R31, T20-22, X20-21, X22-24 */
tp_features.hotkey_mask =
acpi_evalf(hkey_handle, NULL, "DHKN", "qv");
A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking
for HKEY interface version 0x100 */
if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) {
if ((hkeyv >> 8) != 1) {
printk(IBM_ERR "unknown version of the "
"HKEY interface: 0x%x\n", hkeyv);
printk(IBM_ERR "please report this to %s\n",
IBM_MAIL);
} else {
/*
* MHKV 0x100 in A31, R40, R40e,
* T4x, X31, and later
* */
tp_features.hotkey_mask = 1;
}
}
vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n",
str_supported(tp_features.hotkey_mask));
if (tp_features.hotkey_mask) {
/* MHKA available in A31, R40, R40e, T4x, X31, and later */
if (!acpi_evalf(hkey_handle, &hotkey_all_mask,
"MHKA", "qd"))
"MHKA", "qd")) {
printk(IBM_ERR
"missing MHKA handler, "
"please report this to %s\n",
IBM_MAIL);
hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */
}
}
res = hotkey_get(&hotkey_orig_status, &hotkey_orig_mask);
......@@ -1131,6 +1168,8 @@ static void tpacpi_input_send_key(unsigned int scancode,
unsigned int keycode)
{
if (keycode != KEY_RESERVED) {
mutex_lock(&tpacpi_inputdev_send_mutex);
input_report_key(tpacpi_inputdev, keycode, 1);
if (keycode == KEY_UNKNOWN)
input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN,
......@@ -1142,6 +1181,8 @@ static void tpacpi_input_send_key(unsigned int scancode,
input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN,
scancode);
input_sync(tpacpi_inputdev);
mutex_unlock(&tpacpi_inputdev_send_mutex);
}
}
......@@ -1149,18 +1190,47 @@ static void tpacpi_input_send_radiosw(void)
{
int wlsw;
if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw))
mutex_lock(&tpacpi_inputdev_send_mutex);
if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) {
input_report_switch(tpacpi_inputdev,
SW_RADIO, !!wlsw);
input_sync(tpacpi_inputdev);
}
mutex_unlock(&tpacpi_inputdev_send_mutex);
}
static void hotkey_notify(struct ibm_struct *ibm, u32 event)
{
u32 hkey;
unsigned int keycode, scancode;
int send_acpi_ev = 0;
int send_acpi_ev;
int ignore_acpi_ev;
if (event != 0x80) {
printk(IBM_ERR "unknown HKEY notification event %d\n", event);
/* forward it to userspace, maybe it knows how to handle it */
acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
ibm->acpi->device->dev.bus_id,
event, 0);
return;
}
while (1) {
if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) {
printk(IBM_ERR "failed to retrieve HKEY event\n");
return;
}
if (hkey == 0) {
/* queue empty */
return;
}
send_acpi_ev = 0;
ignore_acpi_ev = 0;
if (event == 0x80 && acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) {
switch (hkey >> 12) {
case 1:
/* 0x1000-0x1FFF: key presses */
......@@ -1182,9 +1252,11 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
* eat up known LID events */
if (hkey != 0x5001 && hkey != 0x5002) {
printk(IBM_ERR
"unknown LID-related hotkey event: 0x%04x\n",
hkey);
"unknown LID-related HKEY event: 0x%04x\n",
hkey);
send_acpi_ev = 1;
} else {
ignore_acpi_ev = 1;
}
break;
case 7:
......@@ -1202,21 +1274,18 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
printk(IBM_NOTICE "unhandled HKEY event 0x%04x\n", hkey);
send_acpi_ev = 1;
}
} else {
printk(IBM_ERR "unknown hotkey notification event %d\n", event);
hkey = 0;
send_acpi_ev = 1;
}
/* Legacy events */
if (send_acpi_ev || hotkey_report_mode < 2)
acpi_bus_generate_proc_event(ibm->acpi->device, event, hkey);
/* Legacy events */
if (!ignore_acpi_ev && (send_acpi_ev || hotkey_report_mode < 2)) {
acpi_bus_generate_proc_event(ibm->acpi->device, event, hkey);
}
/* netlink events */
if (send_acpi_ev) {
acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
ibm->acpi->device->dev.bus_id,
event, hkey);
/* netlink events */
if (!ignore_acpi_ev && send_acpi_ev) {
acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
ibm->acpi->device->dev.bus_id,
event, hkey);
}
}
}
......@@ -2812,7 +2881,7 @@ static int __init thermal_init(struct ibm_init_struct *iibm)
switch(thermal_read_mode) {
case TPACPI_THERMAL_TPEC_16:
res = sysfs_create_group(&tpacpi_pdev->dev.kobj,
res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj,
&thermal_temp_input16_group);
if (res)
return res;
......@@ -2820,7 +2889,7 @@ static int __init thermal_init(struct ibm_init_struct *iibm)
case TPACPI_THERMAL_TPEC_8:
case TPACPI_THERMAL_ACPI_TMP07:
case TPACPI_THERMAL_ACPI_UPDT:
res = sysfs_create_group(&tpacpi_pdev->dev.kobj,
res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj,
&thermal_temp_input8_group);
if (res)
return res;
......@@ -2837,13 +2906,13 @@ static void thermal_exit(void)
{
switch(thermal_read_mode) {
case TPACPI_THERMAL_TPEC_16:
sysfs_remove_group(&tpacpi_pdev->dev.kobj,
sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj,
&thermal_temp_input16_group);
break;
case TPACPI_THERMAL_TPEC_8:
case TPACPI_THERMAL_ACPI_TMP07:
case TPACPI_THERMAL_ACPI_UPDT:
sysfs_remove_group(&tpacpi_pdev->dev.kobj,
sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj,
&thermal_temp_input16_group);
break;
case TPACPI_THERMAL_NONE:
......@@ -3626,7 +3695,7 @@ static struct device_attribute dev_attr_fan_fan1_input =
__ATTR(fan1_input, S_IRUGO,
fan_fan1_input_show, NULL);
/* sysfs fan fan_watchdog (driver) ------------------------------------- */
/* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */
static ssize_t fan_fan_watchdog_show(struct device_driver *drv,
char *buf)
{
......@@ -3768,10 +3837,10 @@ static int __init fan_init(struct ibm_init_struct *iibm)
if (fan_status_access_mode != TPACPI_FAN_NONE ||
fan_control_access_mode != TPACPI_FAN_WR_NONE) {
rc = sysfs_create_group(&tpacpi_pdev->dev.kobj,
rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj,
&fan_attr_group);
if (!(rc < 0))
rc = driver_create_file(&tpacpi_pdriver.driver,
rc = driver_create_file(&tpacpi_hwmon_pdriver.driver,
&driver_attr_fan_watchdog);
if (rc < 0)
return rc;
......@@ -3854,8 +3923,8 @@ static void fan_exit(void)
vdbg_printk(TPACPI_DBG_EXIT, "cancelling any pending fan watchdog tasks\n");
/* FIXME: can we really do this unconditionally? */
sysfs_remove_group(&tpacpi_pdev->dev.kobj, &fan_attr_group);
driver_remove_file(&tpacpi_pdriver.driver, &driver_attr_fan_watchdog);
sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group);
driver_remove_file(&tpacpi_hwmon_pdriver.driver, &driver_attr_fan_watchdog);
cancel_delayed_work(&fan_watchdog_task);
flush_scheduled_work();
......@@ -3888,6 +3957,9 @@ static void fan_watchdog_fire(struct work_struct *ignored)
{
int rc;
if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING)
return;
printk(IBM_NOTICE "fan watchdog: enabling fan\n");
rc = fan_set_enable();
if (rc < 0) {
......@@ -3908,7 +3980,8 @@ static void fan_watchdog_reset(void)
if (fan_watchdog_active)
cancel_delayed_work(&fan_watchdog_task);
if (fan_watchdog_maxinterval > 0) {
if (fan_watchdog_maxinterval > 0 &&
tpacpi_lifecycle != TPACPI_LIFE_EXITING) {
fan_watchdog_active = 1;
if (!schedule_delayed_work(&fan_watchdog_task,
msecs_to_jiffies(fan_watchdog_maxinterval
......@@ -4302,6 +4375,19 @@ static struct ibm_struct fan_driver_data = {
****************************************************************************
****************************************************************************/
/* sysfs name ---------------------------------------------------------- */
static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return snprintf(buf, PAGE_SIZE, "%s\n", IBM_NAME);
}
static struct device_attribute dev_attr_thinkpad_acpi_pdev_name =
__ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL);
/* --------------------------------------------------------------------- */
/* /proc support */
static struct proc_dir_entry *proc_dir;
......@@ -4674,6 +4760,8 @@ static int __init thinkpad_acpi_module_init(void)
{
int ret, i;
tpacpi_lifecycle = TPACPI_LIFE_INIT;
/* Parameter checking */
if (hotkey_report_mode > 2)
return -EINVAL;
......@@ -4702,19 +4790,31 @@ static int __init thinkpad_acpi_module_init(void)
ret = platform_driver_register(&tpacpi_pdriver);
if (ret) {
printk(IBM_ERR "unable to register platform driver\n");
printk(IBM_ERR "unable to register main platform driver\n");
thinkpad_acpi_module_exit();
return ret;
}
tp_features.platform_drv_registered = 1;
ret = platform_driver_register(&tpacpi_hwmon_pdriver);
if (ret) {
printk(IBM_ERR "unable to register hwmon platform driver\n");
thinkpad_acpi_module_exit();
return ret;
}
tp_features.sensors_pdrv_registered = 1;
ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver);
if (!ret) {
tp_features.platform_drv_attrs_registered = 1;
ret = tpacpi_create_driver_attributes(&tpacpi_hwmon_pdriver.driver);
}
if (ret) {
printk(IBM_ERR "unable to create sysfs driver attributes\n");
thinkpad_acpi_module_exit();
return ret;
}
tp_features.platform_drv_attrs_registered = 1;
tp_features.sensors_pdrv_attrs_registered = 1;
/* Device initialization */
......@@ -4727,7 +4827,26 @@ static int __init thinkpad_acpi_module_init(void)
thinkpad_acpi_module_exit();
return ret;
}
tpacpi_hwmon = hwmon_device_register(&tpacpi_pdev->dev);
tpacpi_sensors_pdev = platform_device_register_simple(
IBM_HWMON_DRVR_NAME,
-1, NULL, 0);
if (IS_ERR(tpacpi_sensors_pdev)) {
ret = PTR_ERR(tpacpi_sensors_pdev);
tpacpi_sensors_pdev = NULL;
printk(IBM_ERR "unable to register hwmon platform device\n");
thinkpad_acpi_module_exit();
return ret;
}
ret = device_create_file(&tpacpi_sensors_pdev->dev,
&dev_attr_thinkpad_acpi_pdev_name);
if (ret) {
printk(IBM_ERR
"unable to create sysfs hwmon device attributes\n");
thinkpad_acpi_module_exit();
return ret;
}
tp_features.sensors_pdev_attrs_registered = 1;
tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev);
if (IS_ERR(tpacpi_hwmon)) {
ret = PTR_ERR(tpacpi_hwmon);
tpacpi_hwmon = NULL;
......@@ -4735,6 +4854,7 @@ static int __init thinkpad_acpi_module_init(void)
thinkpad_acpi_module_exit();
return ret;
}
mutex_init(&tpacpi_inputdev_send_mutex);
tpacpi_inputdev = input_allocate_device();
if (!tpacpi_inputdev) {
printk(IBM_ERR "unable to allocate input device\n");
......@@ -4769,6 +4889,7 @@ static int __init thinkpad_acpi_module_init(void)
tp_features.input_device_registered = 1;
}
tpacpi_lifecycle = TPACPI_LIFE_RUNNING;
return 0;
}
......@@ -4776,6 +4897,8 @@ static void thinkpad_acpi_module_exit(void)
{
struct ibm_struct *ibm, *itmp;
tpacpi_lifecycle = TPACPI_LIFE_EXITING;
list_for_each_entry_safe_reverse(ibm, itmp,
&tpacpi_all_drivers,
all_drivers) {
......@@ -4794,12 +4917,22 @@ static void thinkpad_acpi_module_exit(void)
if (tpacpi_hwmon)
hwmon_device_unregister(tpacpi_hwmon);
if (tp_features.sensors_pdev_attrs_registered)
device_remove_file(&tpacpi_sensors_pdev->dev,
&dev_attr_thinkpad_acpi_pdev_name);
if (tpacpi_sensors_pdev)
platform_device_unregister(tpacpi_sensors_pdev);
if (tpacpi_pdev)
platform_device_unregister(tpacpi_pdev);
if (tp_features.sensors_pdrv_attrs_registered)
tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver);
if (tp_features.platform_drv_attrs_registered)
tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver);
if (tp_features.sensors_pdrv_registered)
platform_driver_unregister(&tpacpi_hwmon_pdriver);
if (tp_features.platform_drv_registered)
platform_driver_unregister(&tpacpi_pdriver);
......
......@@ -58,13 +58,14 @@
#define IBM_NAME "thinkpad"
#define IBM_DESC "ThinkPad ACPI Extras"
#define IBM_FILE "thinkpad_acpi"
#define IBM_FILE IBM_NAME "_acpi"
#define IBM_URL "http://ibm-acpi.sf.net/"
#define IBM_MAIL "ibm-acpi-devel@lists.sourceforge.net"
#define IBM_PROC_DIR "ibm"
#define IBM_ACPI_EVENT_PREFIX "ibm"
#define IBM_DRVR_NAME IBM_FILE
#define IBM_HWMON_DRVR_NAME IBM_NAME "_hwmon"
#define IBM_LOG IBM_FILE ": "
#define IBM_ERR KERN_ERR IBM_LOG
......@@ -171,6 +172,7 @@ static int parse_strtoul(const char *buf, unsigned long max,
/* Device model */
static struct platform_device *tpacpi_pdev;
static struct platform_device *tpacpi_sensors_pdev;
static struct class_device *tpacpi_hwmon;
static struct platform_driver tpacpi_pdriver;
static struct input_dev *tpacpi_inputdev;
......@@ -233,22 +235,25 @@ struct ibm_init_struct {
static struct {
#ifdef CONFIG_THINKPAD_ACPI_BAY
u16 bay_status:1;
u16 bay_eject:1;
u16 bay_status2:1;
u16 bay_eject2:1;
u32 bay_status:1;
u32 bay_eject:1;
u32 bay_status2:1;
u32 bay_eject2:1;
#endif
u16 bluetooth:1;
u16 hotkey:1;
u16 hotkey_mask:1;
u16 hotkey_wlsw:1;
u16 light:1;
u16 light_status:1;
u16 wan:1;
u16 fan_ctrl_status_undef:1;
u16 input_device_registered:1;
u16 platform_drv_registered:1;
u16 platform_drv_attrs_registered:1;
u32 bluetooth:1;
u32 hotkey:1;
u32 hotkey_mask:1;
u32 hotkey_wlsw:1;
u32 light:1;
u32 light_status:1;
u32 wan:1;
u32 fan_ctrl_status_undef:1;
u32 input_device_registered:1;
u32 platform_drv_registered:1;
u32 platform_drv_attrs_registered:1;
u32 sensors_pdrv_registered:1;
u32 sensors_pdrv_attrs_registered:1;
u32 sensors_pdev_attrs_registered:1;
} tp_features;
struct thinkpad_id_data {
......
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