*
*
* Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net>
- * Copyright (C) 2006-2007 Henrique de Moraes Holschuh <hmh@hmh.eng.br>
+ * Copyright (C) 2006-2008 Henrique de Moraes Holschuh <hmh@hmh.eng.br>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* 02110-1301, USA.
*/
-#define IBM_VERSION "0.17"
-#define TPACPI_SYSFS_VERSION 0x020000
+#define TPACPI_VERSION "0.19"
+#define TPACPI_SYSFS_VERSION 0x020200
/*
* Changelog:
+ * 2007-10-20 changelog trimmed down
+ *
* 2007-03-27 0.14 renamed to thinkpad_acpi and moved to
* drivers/misc.
*
* changelog now lives in git commit history, and will
* not be updated further in-file.
*
- * 2005-08-17 0.12 fix compilation on 2.6.13-rc kernels
* 2005-03-17 0.11 support for 600e, 770x
* thanks to Jamie Lentin <lentinj@dial.pipex.com>
- * support for 770e, G41
- * G40 and G41 don't have a thinklight
- * temperatures no longer experimental
- * experimental brightness control
- * experimental volume control
- * experimental fan enable/disable
- * 2005-01-16 0.10 fix module loading on R30, R31
- * 2005-01-16 0.9 support for 570, R30, R31
- * ultrabay support on A22p, A3x
- * limit arg for cmos, led, beep, drop experimental status
- * more capable led control on A21e, A22p, T20-22, X20
- * experimental temperatures and fan speed
- * experimental embedded controller register dump
- * mark more functions as __init, drop incorrect __exit
- * use MODULE_VERSION
+ *
+ * 2005-01-16 0.9 use MODULE_VERSION
* thanks to Henrik Brix Andersen <brix@gentoo.org>
* fix parameter passing on module loading
* thanks to Rusty Russell <rusty@rustcorp.com.au>
* thanks to Jim Radford <radford@blackbean.org>
* 2004-11-08 0.8 fix init error case, don't return from a macro
* thanks to Chris Wright <chrisw@osdl.org>
- * 2004-10-23 0.7 fix module loading on A21e, A22p, T20, T21, X20
- * fix led control on A21e
- * 2004-10-19 0.6 use acpi_bus_register_driver() to claim HKEY device
- * 2004-10-18 0.5 thinklight support on A21e, G40, R32, T20, T21, X20
- * proc file format changed
- * video_switch command
- * experimental cmos control
- * experimental led control
- * experimental acpi sounds
- * 2004-09-16 0.4 support for module parameters
- * hotkey mask can be prefixed by 0x
- * video output switching
- * video expansion control
- * ultrabay eject support
- * removed lcd brightness/on/off control, didn't work
- * 2004-08-17 0.3 support for R40
- * lcd off, brightness control
- * thinklight on/off
- * 2004-08-14 0.2 support for T series, X20
- * bluetooth enable/disable
- * hotkey events disabled by default
- * removed fan control, currently useless
- * 2004-08-09 0.1 initial release, support for X series
*/
-#include "thinkpad_acpi.h"
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/kthread.h>
+#include <linux/freezer.h>
+#include <linux/delay.h>
+
+#include <linux/nvram.h>
+#include <linux/proc_fs.h>
+#include <linux/sysfs.h>
+#include <linux/backlight.h>
+#include <linux/fb.h>
+#include <linux/platform_device.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/input.h>
+#include <asm/uaccess.h>
+
+#include <linux/dmi.h>
+#include <linux/jiffies.h>
+#include <linux/workqueue.h>
+
+#include <acpi/acpi_drivers.h>
+#include <acpi/acnamesp.h>
+
+#include <linux/pci_ids.h>
+
+
+/* ThinkPad CMOS commands */
+#define TP_CMOS_VOLUME_DOWN 0
+#define TP_CMOS_VOLUME_UP 1
+#define TP_CMOS_VOLUME_MUTE 2
+#define TP_CMOS_BRIGHTNESS_UP 4
+#define TP_CMOS_BRIGHTNESS_DOWN 5
+
+/* NVRAM Addresses */
+enum tp_nvram_addr {
+ TP_NVRAM_ADDR_HK2 = 0x57,
+ TP_NVRAM_ADDR_THINKLIGHT = 0x58,
+ TP_NVRAM_ADDR_VIDEO = 0x59,
+ TP_NVRAM_ADDR_BRIGHTNESS = 0x5e,
+ TP_NVRAM_ADDR_MIXER = 0x60,
+};
-MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh");
-MODULE_DESCRIPTION(IBM_DESC);
-MODULE_VERSION(IBM_VERSION);
-MODULE_LICENSE("GPL");
+/* NVRAM bit masks */
+enum {
+ TP_NVRAM_MASK_HKT_THINKPAD = 0x08,
+ TP_NVRAM_MASK_HKT_ZOOM = 0x20,
+ TP_NVRAM_MASK_HKT_DISPLAY = 0x40,
+ TP_NVRAM_MASK_HKT_HIBERNATE = 0x80,
+ TP_NVRAM_MASK_THINKLIGHT = 0x10,
+ TP_NVRAM_MASK_HKT_DISPEXPND = 0x30,
+ TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20,
+ TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f,
+ TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0,
+ TP_NVRAM_MASK_MUTE = 0x40,
+ TP_NVRAM_MASK_HKT_VOLUME = 0x80,
+ TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f,
+ TP_NVRAM_POS_LEVEL_VOLUME = 0,
+};
-/* Please remove this in year 2009 */
-MODULE_ALIAS("ibm_acpi");
+/* ACPI HIDs */
+#define TPACPI_ACPI_HKEY_HID "IBM0068"
-/*
- * DMI matching for module autoloading
- *
- * See http://thinkwiki.org/wiki/List_of_DMI_IDs
- * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads
- *
- * Only models listed in thinkwiki will be supported, so add yours
- * if it is not there yet.
+/* Input IDs */
+#define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */
+#define TPACPI_HKEY_INPUT_VERSION 0x4101
+
+
+/****************************************************************************
+ * Main driver
*/
-#define IBM_BIOS_MODULE_ALIAS(__type) \
- MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW")
-/* Non-ancient thinkpads */
-MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*");
-MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*");
+#define TPACPI_NAME "thinkpad"
+#define TPACPI_DESC "ThinkPad ACPI Extras"
+#define TPACPI_FILE TPACPI_NAME "_acpi"
+#define TPACPI_URL "http://ibm-acpi.sf.net/"
+#define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net"
+
+#define TPACPI_PROC_DIR "ibm"
+#define TPACPI_ACPI_EVENT_PREFIX "ibm"
+#define TPACPI_DRVR_NAME TPACPI_FILE
+#define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon"
+
+#define TPACPI_MAX_ACPI_ARGS 3
+
+/* Debugging */
+#define TPACPI_LOG TPACPI_FILE ": "
+#define TPACPI_ERR KERN_ERR TPACPI_LOG
+#define TPACPI_NOTICE KERN_NOTICE TPACPI_LOG
+#define TPACPI_INFO KERN_INFO TPACPI_LOG
+#define TPACPI_DEBUG KERN_DEBUG TPACPI_LOG
+
+#define TPACPI_DBG_ALL 0xffff
+#define TPACPI_DBG_ALL 0xffff
+#define TPACPI_DBG_INIT 0x0001
+#define TPACPI_DBG_EXIT 0x0002
+#define dbg_printk(a_dbg_level, format, arg...) \
+ do { if (dbg_level & a_dbg_level) \
+ printk(TPACPI_DEBUG "%s: " format, __func__ , ## arg); \
+ } while (0)
+#ifdef CONFIG_THINKPAD_ACPI_DEBUG
+#define vdbg_printk(a_dbg_level, format, arg...) \
+ dbg_printk(a_dbg_level, format, ## arg)
+static const char *str_supported(int is_supported);
+#else
+#define vdbg_printk(a_dbg_level, format, arg...)
+#endif
-/* Ancient thinkpad BIOSes have to be identified by
- * BIOS type or model number, and there are far less
- * BIOS types than model numbers... */
-IBM_BIOS_MODULE_ALIAS("I[B,D,H,I,M,N,O,T,W,V,Y,Z]");
-IBM_BIOS_MODULE_ALIAS("1[0,3,6,8,A-G,I,K,M-P,S,T]");
-IBM_BIOS_MODULE_ALIAS("K[U,X-Z]");
+#define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off")
+#define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled")
+#define strlencmp(a, b) (strncmp((a), (b), strlen(b)))
-#define __unused __attribute__ ((unused))
+
+/****************************************************************************
+ * Driver-wide structs and misc. variables
+ */
+
+struct ibm_struct;
+
+struct tp_acpi_drv_struct {
+ const struct acpi_device_id *hid;
+ struct acpi_driver *driver;
+
+ void (*notify) (struct ibm_struct *, u32);
+ acpi_handle *handle;
+ u32 type;
+ struct acpi_device *device;
+};
+
+struct ibm_struct {
+ char *name;
+
+ int (*read) (char *);
+ int (*write) (char *);
+ void (*exit) (void);
+ void (*resume) (void);
+ void (*suspend) (pm_message_t state);
+
+ struct list_head all_drivers;
+
+ struct tp_acpi_drv_struct *acpi;
+
+ struct {
+ u8 acpi_driver_registered:1;
+ u8 acpi_notify_installed:1;
+ u8 proc_created:1;
+ u8 init_called:1;
+ u8 experimental:1;
+ } flags;
+};
+
+struct ibm_init_struct {
+ char param[32];
+
+ int (*init) (struct ibm_init_struct *);
+ struct ibm_struct *data;
+};
+
+static struct {
+#ifdef CONFIG_THINKPAD_ACPI_BAY
+ u32 bay_status:1;
+ u32 bay_eject:1;
+ u32 bay_status2:1;
+ u32 bay_eject2:1;
+#endif
+ u32 bluetooth:1;
+ u32 hotkey:1;
+ u32 hotkey_mask:1;
+ u32 hotkey_wlsw:1;
+ u32 light:1;
+ u32 light_status:1;
+ u32 bright_16levels: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;
+ u32 hotkey_poll_active:1;
+} tp_features;
+
+struct thinkpad_id_data {
+ unsigned int vendor; /* ThinkPad vendor:
+ * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */
+
+ char *bios_version_str; /* Something like 1ZET51WW (1.03z) */
+ char *ec_version_str; /* Something like 1ZHT51WW-1.04a */
+
+ u16 bios_model; /* Big Endian, TP-1Y = 0x5931, 0 = unknown */
+ u16 ec_model;
+
+ char *model_str;
+};
+static struct thinkpad_id_data thinkpad_id;
static enum {
TPACPI_LIFE_INIT = 0,
TPACPI_LIFE_EXITING,
} tpacpi_lifecycle;
+static int experimental;
+static u32 dbg_level;
+
/****************************************************************************
****************************************************************************
*
static acpi_handle root_handle;
-#define IBM_HANDLE(object, parent, paths...) \
+#define TPACPI_HANDLE(object, parent, paths...) \
static acpi_handle object##_handle; \
static acpi_handle *object##_parent = &parent##_handle; \
static char *object##_path; \
static char *object##_paths[] = { paths }
-IBM_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */
+TPACPI_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */
"\\_SB.PCI.ISA.EC", /* 570 */
"\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */
"\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */
"\\_SB.PCI0.LPC.EC", /* all others */
);
-IBM_HANDLE(ecrd, ec, "ECRD"); /* 570 */
-IBM_HANDLE(ecwr, ec, "ECWR"); /* 570 */
-
+TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */
+TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */
-/*************************************************************************
- * Misc ACPI handles
- */
-
-IBM_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, T4x, X31, X40 */
+TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */
+ /* T4x, X31, X40 */
"\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */
"\\CMS", /* R40, R40e */
); /* all others */
-IBM_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */
+TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */
"^HKEY", /* R30, R31 */
"HKEY", /* all others */
); /* 570 */
{
char *fmt0 = fmt;
struct acpi_object_list params;
- union acpi_object in_objs[IBM_MAX_ACPI_ARGS];
+ union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS];
struct acpi_buffer result, *resultp;
union acpi_object out_obj;
acpi_status status;
int quiet;
if (!*fmt) {
- printk(IBM_ERR "acpi_evalf() called with empty format\n");
+ printk(TPACPI_ERR "acpi_evalf() called with empty format\n");
return 0;
}
break;
/* add more types as needed */
default:
- printk(IBM_ERR "acpi_evalf() called "
+ printk(TPACPI_ERR "acpi_evalf() called "
"with invalid format character '%c'\n", c);
return 0;
}
break;
/* add more types as needed */
default:
- printk(IBM_ERR "acpi_evalf() called "
+ printk(TPACPI_ERR "acpi_evalf() called "
"with invalid format character '%c'\n", res_type);
return 0;
}
if (!success && !quiet)
- printk(IBM_ERR "acpi_evalf(%s, %s, ...) failed: %d\n",
+ printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %d\n",
method, fmt0, status);
return success;
}
-static void __unused acpi_print_int(acpi_handle handle, char *method)
-{
- int i;
-
- if (acpi_evalf(handle, &i, method, "d"))
- printk(IBM_INFO "%s = 0x%x\n", method, i);
- else
- printk(IBM_ERR "error calling %s\n", method);
-}
-
-static int acpi_ec_read(int i, u8 * p)
+static int acpi_ec_read(int i, u8 *p)
{
int v;
return 1;
}
+#if defined(CONFIG_THINKPAD_ACPI_DOCK) || defined(CONFIG_THINKPAD_ACPI_BAY)
static int _sta(acpi_handle handle)
{
int status;
return status;
}
+#endif
static int issue_thinkpad_cmos_command(int cmos_cmd)
{
* ACPI device model
*/
+#define TPACPI_ACPIHANDLE_INIT(object) \
+ drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \
+ object##_paths, ARRAY_SIZE(object##_paths), &object##_path)
+
static void drv_acpi_handle_init(char *name,
acpi_handle *handle, acpi_handle parent,
char **paths, int num_paths, char **path)
rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device);
if (rc < 0) {
- printk(IBM_ERR "acpi_bus_get_device(%s) failed: %d\n",
+ printk(TPACPI_ERR "acpi_bus_get_device(%s) failed: %d\n",
ibm->name, rc);
return -ENODEV;
}
acpi_driver_data(ibm->acpi->device) = ibm;
sprintf(acpi_device_class(ibm->acpi->device), "%s/%s",
- IBM_ACPI_EVENT_PREFIX,
+ TPACPI_ACPI_EVENT_PREFIX,
ibm->name);
status = acpi_install_notify_handler(*ibm->acpi->handle,
ibm->acpi->type, dispatch_acpi_notify, ibm);
if (ACPI_FAILURE(status)) {
if (status == AE_ALREADY_EXISTS) {
- printk(IBM_NOTICE "another device driver is already handling %s events\n",
- ibm->name);
+ printk(TPACPI_NOTICE
+ "another device driver is already "
+ "handling %s events\n", ibm->name);
} else {
- printk(IBM_ERR "acpi_install_notify_handler(%s) failed: %d\n",
- ibm->name, status);
+ printk(TPACPI_ERR
+ "acpi_install_notify_handler(%s) failed: %d\n",
+ ibm->name, status);
}
return -ENODEV;
}
ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL);
if (!ibm->acpi->driver) {
- printk(IBM_ERR "kzalloc(ibm->driver) failed\n");
+ printk(TPACPI_ERR "kzalloc(ibm->driver) failed\n");
return -ENOMEM;
}
- sprintf(ibm->acpi->driver->name, "%s_%s", IBM_NAME, ibm->name);
+ sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name);
ibm->acpi->driver->ids = ibm->acpi->hid;
ibm->acpi->driver->ops.add = &tpacpi_device_add;
rc = acpi_bus_register_driver(ibm->acpi->driver);
if (rc < 0) {
- printk(IBM_ERR "acpi_bus_register_driver(%s) failed: %d\n",
+ printk(TPACPI_ERR "acpi_bus_register_driver(%s) failed: %d\n",
ibm->name, rc);
kfree(ibm->acpi->driver);
ibm->acpi->driver = NULL;
}
static int dispatch_procfs_write(struct file *file,
- const char __user * userbuf,
+ const char __user *userbuf,
unsigned long count, void *data)
{
struct ibm_struct *ibm = data;
static struct device *tpacpi_hwmon;
static struct input_dev *tpacpi_inputdev;
static struct mutex tpacpi_inputdev_send_mutex;
+static LIST_HEAD(tpacpi_all_drivers);
+
+static int tpacpi_suspend_handler(struct platform_device *pdev,
+ pm_message_t state)
+{
+ struct ibm_struct *ibm, *itmp;
+
+ list_for_each_entry_safe(ibm, itmp,
+ &tpacpi_all_drivers,
+ all_drivers) {
+ if (ibm->suspend)
+ (ibm->suspend)(state);
+ }
+ return 0;
+}
static int tpacpi_resume_handler(struct platform_device *pdev)
{
static struct platform_driver tpacpi_pdriver = {
.driver = {
- .name = IBM_DRVR_NAME,
+ .name = TPACPI_DRVR_NAME,
.owner = THIS_MODULE,
},
+ .suspend = tpacpi_suspend_handler,
.resume = tpacpi_resume_handler,
};
static struct platform_driver tpacpi_hwmon_pdriver = {
.driver = {
- .name = IBM_HWMON_DRVR_NAME,
+ .name = TPACPI_HWMON_DRVR_NAME,
.owner = THIS_MODULE,
},
};
/*************************************************************************
- * thinkpad-acpi driver attributes
+ * sysfs support helpers
*/
-/* interface_version --------------------------------------------------- */
-static ssize_t tpacpi_driver_interface_version_show(
- struct device_driver *drv,
- char *buf)
-{
- return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION);
-}
-
-static DRIVER_ATTR(interface_version, S_IRUGO,
- tpacpi_driver_interface_version_show, NULL);
-
-/* debug_level --------------------------------------------------------- */
-static ssize_t tpacpi_driver_debug_show(struct device_driver *drv,
- char *buf)
-{
- return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level);
-}
-
-static ssize_t tpacpi_driver_debug_store(struct device_driver *drv,
- const char *buf, size_t count)
-{
- unsigned long t;
-
- if (parse_strtoul(buf, 0xffff, &t))
- return -EINVAL;
-
- dbg_level = t;
-
- return count;
-}
-
-static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO,
- tpacpi_driver_debug_show, tpacpi_driver_debug_store);
-
-/* version ------------------------------------------------------------- */
-static ssize_t tpacpi_driver_version_show(struct device_driver *drv,
- char *buf)
-{
- return snprintf(buf, PAGE_SIZE, "%s v%s\n", IBM_DESC, IBM_VERSION);
-}
-
-static DRIVER_ATTR(version, S_IRUGO,
- tpacpi_driver_version_show, NULL);
-
-/* --------------------------------------------------------------------- */
-
-static struct driver_attribute* tpacpi_driver_attributes[] = {
- &driver_attr_debug_level, &driver_attr_version,
- &driver_attr_interface_version,
+struct attribute_set {
+ unsigned int members, max_members;
+ struct attribute_group group;
};
-static int __init tpacpi_create_driver_attributes(struct device_driver *drv)
-{
- int i, res;
-
- i = 0;
- res = 0;
- while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) {
- res = driver_create_file(drv, tpacpi_driver_attributes[i]);
- i++;
- }
-
- return res;
-}
-
-static void tpacpi_remove_driver_attributes(struct device_driver *drv)
-{
- int i;
-
- for(i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++)
- driver_remove_file(drv, tpacpi_driver_attributes[i]);
-}
-
-/*************************************************************************
- * sysfs support helpers
- */
-
struct attribute_set_obj {
struct attribute_set s;
struct attribute *a;
} __attribute__((packed));
static struct attribute_set *create_attr_set(unsigned int max_members,
- const char* name)
+ const char *name)
{
struct attribute_set_obj *sobj;
return &sobj->s;
}
+#define destroy_attr_set(_set) \
+ kfree(_set);
+
/* not multi-threaded safe, use it in a single thread per set */
-static int add_to_attr_set(struct attribute_set* s, struct attribute *attr)
+static int add_to_attr_set(struct attribute_set *s, struct attribute *attr)
{
if (!s || !attr)
return -EINVAL;
return 0;
}
-static int add_many_to_attr_set(struct attribute_set* s,
+static int add_many_to_attr_set(struct attribute_set *s,
struct attribute **attr,
unsigned int count)
{
return 0;
}
-static void delete_attr_set(struct attribute_set* s, struct kobject *kobj)
+static void delete_attr_set(struct attribute_set *s, struct kobject *kobj)
{
sysfs_remove_group(kobj, &s->group);
destroy_attr_set(s);
}
+#define register_attr_set_with_sysfs(_attr_set, _kobj) \
+ sysfs_create_group(_kobj, &_attr_set->group)
+
static int parse_strtoul(const char *buf,
unsigned long max, unsigned long *value)
{
return 0;
}
+/*************************************************************************
+ * thinkpad-acpi driver attributes
+ */
+
+/* interface_version --------------------------------------------------- */
+static ssize_t tpacpi_driver_interface_version_show(
+ struct device_driver *drv,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION);
+}
+
+static DRIVER_ATTR(interface_version, S_IRUGO,
+ tpacpi_driver_interface_version_show, NULL);
+
+/* debug_level --------------------------------------------------------- */
+static ssize_t tpacpi_driver_debug_show(struct device_driver *drv,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level);
+}
+
+static ssize_t tpacpi_driver_debug_store(struct device_driver *drv,
+ const char *buf, size_t count)
+{
+ unsigned long t;
+
+ if (parse_strtoul(buf, 0xffff, &t))
+ return -EINVAL;
+
+ dbg_level = t;
+
+ return count;
+}
+
+static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO,
+ tpacpi_driver_debug_show, tpacpi_driver_debug_store);
+
+/* version ------------------------------------------------------------- */
+static ssize_t tpacpi_driver_version_show(struct device_driver *drv,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%s v%s\n",
+ TPACPI_DESC, TPACPI_VERSION);
+}
+
+static DRIVER_ATTR(version, S_IRUGO,
+ tpacpi_driver_version_show, NULL);
+
+/* --------------------------------------------------------------------- */
+
+static struct driver_attribute *tpacpi_driver_attributes[] = {
+ &driver_attr_debug_level, &driver_attr_version,
+ &driver_attr_interface_version,
+};
+
+static int __init tpacpi_create_driver_attributes(struct device_driver *drv)
+{
+ int i, res;
+
+ i = 0;
+ res = 0;
+ while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) {
+ res = driver_create_file(drv, tpacpi_driver_attributes[i]);
+ i++;
+ }
+
+ return res;
+}
+
+static void tpacpi_remove_driver_attributes(struct device_driver *drv)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++)
+ driver_remove_file(drv, tpacpi_driver_attributes[i]);
+}
+
/****************************************************************************
****************************************************************************
*
static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm)
{
- printk(IBM_INFO "%s v%s\n", IBM_DESC, IBM_VERSION);
- printk(IBM_INFO "%s\n", IBM_URL);
+ printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION);
+ printk(TPACPI_INFO "%s\n", TPACPI_URL);
- printk(IBM_INFO "ThinkPad BIOS %s, EC %s\n",
+ printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n",
(thinkpad_id.bios_version_str) ?
thinkpad_id.bios_version_str : "unknown",
(thinkpad_id.ec_version_str) ?
thinkpad_id.ec_version_str : "unknown");
if (thinkpad_id.vendor && thinkpad_id.model_str)
- printk(IBM_INFO "%s %s\n",
+ printk(TPACPI_INFO "%s %s\n",
(thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ?
"IBM" : ((thinkpad_id.vendor ==
PCI_VENDOR_ID_LENOVO) ?
{
int len = 0;
- len += sprintf(p + len, "driver:\t\t%s\n", IBM_DESC);
- len += sprintf(p + len, "version:\t%s\n", IBM_VERSION);
+ len += sprintf(p + len, "driver:\t\t%s\n", TPACPI_DESC);
+ len += sprintf(p + len, "version:\t%s\n", TPACPI_VERSION);
return len;
}
* Hotkey subdriver
*/
+enum { /* hot key scan codes (derived from ACPI DSDT) */
+ TP_ACPI_HOTKEYSCAN_FNF1 = 0,
+ TP_ACPI_HOTKEYSCAN_FNF2,
+ TP_ACPI_HOTKEYSCAN_FNF3,
+ TP_ACPI_HOTKEYSCAN_FNF4,
+ TP_ACPI_HOTKEYSCAN_FNF5,
+ TP_ACPI_HOTKEYSCAN_FNF6,
+ TP_ACPI_HOTKEYSCAN_FNF7,
+ TP_ACPI_HOTKEYSCAN_FNF8,
+ TP_ACPI_HOTKEYSCAN_FNF9,
+ TP_ACPI_HOTKEYSCAN_FNF10,
+ TP_ACPI_HOTKEYSCAN_FNF11,
+ TP_ACPI_HOTKEYSCAN_FNF12,
+ TP_ACPI_HOTKEYSCAN_FNBACKSPACE,
+ TP_ACPI_HOTKEYSCAN_FNINSERT,
+ TP_ACPI_HOTKEYSCAN_FNDELETE,
+ TP_ACPI_HOTKEYSCAN_FNHOME,
+ TP_ACPI_HOTKEYSCAN_FNEND,
+ TP_ACPI_HOTKEYSCAN_FNPAGEUP,
+ TP_ACPI_HOTKEYSCAN_FNPAGEDOWN,
+ TP_ACPI_HOTKEYSCAN_FNSPACE,
+ TP_ACPI_HOTKEYSCAN_VOLUMEUP,
+ TP_ACPI_HOTKEYSCAN_VOLUMEDOWN,
+ TP_ACPI_HOTKEYSCAN_MUTE,
+ TP_ACPI_HOTKEYSCAN_THINKPAD,
+};
+
+enum { /* Keys available through NVRAM polling */
+ TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U,
+ TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U,
+};
+
+enum { /* Positions of some of the keys in hotkey masks */
+ TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7,
+ TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8,
+ TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12,
+ TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME,
+ TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND,
+ TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP,
+ TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE,
+ TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP,
+ TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN,
+ TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE,
+ TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD,
+};
+
+enum { /* NVRAM to ACPI HKEY group map */
+ TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK |
+ TP_ACPI_HKEY_ZOOM_MASK |
+ TP_ACPI_HKEY_DISPSWTCH_MASK |
+ TP_ACPI_HKEY_HIBERNATE_MASK,
+ TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK |
+ TP_ACPI_HKEY_BRGHTDWN_MASK,
+ TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK |
+ TP_ACPI_HKEY_VOLDWN_MASK |
+ TP_ACPI_HKEY_MUTE_MASK,
+};
+
+#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
+struct tp_nvram_state {
+ u16 thinkpad_toggle:1;
+ u16 zoom_toggle:1;
+ u16 display_toggle:1;
+ u16 thinklight_toggle:1;
+ u16 hibernate_toggle:1;
+ u16 displayexp_toggle:1;
+ u16 display_state:1;
+ u16 brightness_toggle:1;
+ u16 volume_toggle:1;
+ u16 mute:1;
+
+ u8 brightness_level;
+ u8 volume_level;
+};
+
+static struct task_struct *tpacpi_hotkey_task;
+static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */
+static int hotkey_poll_freq = 10; /* Hz */
+static struct mutex hotkey_thread_mutex;
+static struct mutex hotkey_thread_data_mutex;
+static unsigned int hotkey_config_change;
+
+#else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */
+
+#define hotkey_source_mask 0U
+
+#endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */
+
+static struct mutex hotkey_mutex;
+
+static enum { /* Reasons for waking up */
+ TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */
+ TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */
+ TP_ACPI_WAKEUP_UNDOCK, /* Undock request */
+} hotkey_wakeup_reason;
+
+static int hotkey_autosleep_ack;
+
static int hotkey_orig_status;
static u32 hotkey_orig_mask;
static u32 hotkey_all_mask;
static u32 hotkey_reserved_mask;
+static u32 hotkey_mask;
+
+static unsigned int hotkey_report_mode;
static u16 *hotkey_keycode_map;
static struct attribute_set *hotkey_dev_attributes;
+#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
+#define HOTKEY_CONFIG_CRITICAL_START \
+ do { \
+ mutex_lock(&hotkey_thread_data_mutex); \
+ hotkey_config_change++; \
+ } while (0);
+#define HOTKEY_CONFIG_CRITICAL_END \
+ mutex_unlock(&hotkey_thread_data_mutex);
+#else
+#define HOTKEY_CONFIG_CRITICAL_START
+#define HOTKEY_CONFIG_CRITICAL_END
+#endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */
+
static int hotkey_get_wlsw(int *status)
{
if (!acpi_evalf(hkey_handle, status, "WLSW", "d"))
return 0;
}
-/* sysfs hotkey enable ------------------------------------------------- */
-static ssize_t hotkey_enable_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+/*
+ * Call with hotkey_mutex held
+ */
+static int hotkey_mask_get(void)
{
- int res, status;
+ u32 m = 0;
+
+ if (tp_features.hotkey_mask) {
+ if (!acpi_evalf(hkey_handle, &m, "DHKN", "d"))
+ return -EIO;
+ }
+ hotkey_mask = m | (hotkey_source_mask & hotkey_mask);
+
+ return 0;
+}
+
+/*
+ * Call with hotkey_mutex held
+ */
+static int hotkey_mask_set(u32 mask)
+{
+ int i;
+ int rc = 0;
+
+ if (tp_features.hotkey_mask) {
+ HOTKEY_CONFIG_CRITICAL_START
+ for (i = 0; i < 32; i++) {
+ u32 m = 1 << i;
+ /* enable in firmware mask only keys not in NVRAM
+ * mode, but enable the key in the cached hotkey_mask
+ * regardless of mode, or the key will end up
+ * disabled by hotkey_mask_get() */
+ if (!acpi_evalf(hkey_handle,
+ NULL, "MHKM", "vdd", i + 1,
+ !!((mask & ~hotkey_source_mask) & m))) {
+ rc = -EIO;
+ break;
+ } else {
+ hotkey_mask = (hotkey_mask & ~m) | (mask & m);
+ }
+ }
+ HOTKEY_CONFIG_CRITICAL_END
+
+ /* hotkey_mask_get must be called unconditionally below */
+ if (!hotkey_mask_get() && !rc &&
+ (hotkey_mask & ~hotkey_source_mask) !=
+ (mask & ~hotkey_source_mask)) {
+ printk(TPACPI_NOTICE
+ "requested hot key mask 0x%08x, but "
+ "firmware forced it to 0x%08x\n",
+ mask, hotkey_mask);
+ }
+ } else {
+#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
+ HOTKEY_CONFIG_CRITICAL_START
+ hotkey_mask = mask & hotkey_source_mask;
+ HOTKEY_CONFIG_CRITICAL_END
+ hotkey_mask_get();
+ if (hotkey_mask != mask) {
+ printk(TPACPI_NOTICE
+ "requested hot key mask 0x%08x, "
+ "forced to 0x%08x (NVRAM poll mask is "
+ "0x%08x): no firmware mask support\n",
+ mask, hotkey_mask, hotkey_source_mask);
+ }
+#else
+ hotkey_mask_get();
+ rc = -ENXIO;
+#endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */
+ }
+
+ return rc;
+}
+
+static int hotkey_status_get(int *status)
+{
+ if (!acpi_evalf(hkey_handle, status, "DHKC", "d"))
+ return -EIO;
+
+ return 0;
+}
+
+static int hotkey_status_set(int status)
+{
+ if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status))
+ return -EIO;
+
+ return 0;
+}
+
+static void tpacpi_input_send_radiosw(void)
+{
+ int 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 tpacpi_input_send_key(unsigned int scancode)
+{
+ unsigned int keycode;
+
+ keycode = hotkey_keycode_map[scancode];
+
+ 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,
+ scancode);
+ input_sync(tpacpi_inputdev);
+
+ input_report_key(tpacpi_inputdev, keycode, 0);
+ if (keycode == KEY_UNKNOWN)
+ input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN,
+ scancode);
+ input_sync(tpacpi_inputdev);
+
+ mutex_unlock(&tpacpi_inputdev_send_mutex);
+ }
+}
+
+#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
+static struct tp_acpi_drv_struct ibm_hotkey_acpidriver;
+
+static void tpacpi_hotkey_send_key(unsigned int scancode)
+{
+ tpacpi_input_send_key(scancode);
+ if (hotkey_report_mode < 2) {
+ acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device,
+ 0x80, 0x1001 + scancode);
+ }
+}
+
+static void hotkey_read_nvram(struct tp_nvram_state *n, u32 m)
+{
+ u8 d;
+
+ if (m & TP_NVRAM_HKEY_GROUP_HK2) {
+ d = nvram_read_byte(TP_NVRAM_ADDR_HK2);
+ n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD);
+ n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM);
+ n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY);
+ n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE);
+ }
+ if (m & TP_ACPI_HKEY_THNKLGHT_MASK) {
+ d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT);
+ n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT);
+ }
+ if (m & TP_ACPI_HKEY_DISPXPAND_MASK) {
+ d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO);
+ n->displayexp_toggle =
+ !!(d & TP_NVRAM_MASK_HKT_DISPEXPND);
+ }
+ if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) {
+ d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS);
+ n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS)
+ >> TP_NVRAM_POS_LEVEL_BRIGHTNESS;
+ n->brightness_toggle =
+ !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS);
+ }
+ if (m & TP_NVRAM_HKEY_GROUP_VOLUME) {
+ d = nvram_read_byte(TP_NVRAM_ADDR_MIXER);
+ n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME)
+ >> TP_NVRAM_POS_LEVEL_VOLUME;
+ n->mute = !!(d & TP_NVRAM_MASK_MUTE);
+ n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME);
+ }
+}
+
+#define TPACPI_COMPARE_KEY(__scancode, __member) \
+ do { \
+ if ((mask & (1 << __scancode)) && \
+ oldn->__member != newn->__member) \
+ tpacpi_hotkey_send_key(__scancode); \
+ } while (0)
+
+#define TPACPI_MAY_SEND_KEY(__scancode) \
+ do { if (mask & (1 << __scancode)) \
+ tpacpi_hotkey_send_key(__scancode); } while (0)
+
+static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
+ struct tp_nvram_state *newn,
+ u32 mask)
+{
+ TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle);
+ TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle);
+ TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle);
+ TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle);
+
+ TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle);
+
+ TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle);
+
+ /* handle volume */
+ if (oldn->volume_toggle != newn->volume_toggle) {
+ if (oldn->mute != newn->mute) {
+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE);
+ }
+ if (oldn->volume_level > newn->volume_level) {
+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN);
+ } else if (oldn->volume_level < newn->volume_level) {
+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
+ } else if (oldn->mute == newn->mute) {
+ /* repeated key presses that didn't change state */
+ if (newn->mute) {
+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE);
+ } else if (newn->volume_level != 0) {
+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
+ } else {
+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN);
+ }
+ }
+ }
+
+ /* handle brightness */
+ if (oldn->brightness_toggle != newn->brightness_toggle) {
+ if (oldn->brightness_level < newn->brightness_level) {
+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
+ } else if (oldn->brightness_level > newn->brightness_level) {
+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND);
+ } else {
+ /* repeated key presses that didn't change state */
+ if (newn->brightness_level != 0) {
+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
+ } else {
+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND);
+ }
+ }
+ }
+}
+
+#undef TPACPI_COMPARE_KEY
+#undef TPACPI_MAY_SEND_KEY
+
+static int hotkey_kthread(void *data)
+{
+ struct tp_nvram_state s[2];
u32 mask;
+ unsigned int si, so;
+ unsigned long t;
+ unsigned int change_detector, must_reset;
+
+ mutex_lock(&hotkey_thread_mutex);
+
+ if (tpacpi_lifecycle == TPACPI_LIFE_EXITING)
+ goto exit;
+
+ set_freezable();
+
+ so = 0;
+ si = 1;
+ t = 0;
+
+ /* Initial state for compares */
+ mutex_lock(&hotkey_thread_data_mutex);
+ change_detector = hotkey_config_change;
+ mask = hotkey_source_mask & hotkey_mask;
+ mutex_unlock(&hotkey_thread_data_mutex);
+ hotkey_read_nvram(&s[so], mask);
+
+ while (!kthread_should_stop() && hotkey_poll_freq) {
+ if (t == 0)
+ t = 1000/hotkey_poll_freq;
+ t = msleep_interruptible(t);
+ if (unlikely(kthread_should_stop()))
+ break;
+ must_reset = try_to_freeze();
+ if (t > 0 && !must_reset)
+ continue;
+
+ mutex_lock(&hotkey_thread_data_mutex);
+ if (must_reset || hotkey_config_change != change_detector) {
+ /* forget old state on thaw or config change */
+ si = so;
+ t = 0;
+ change_detector = hotkey_config_change;
+ }
+ mask = hotkey_source_mask & hotkey_mask;
+ mutex_unlock(&hotkey_thread_data_mutex);
+
+ if (likely(mask)) {
+ hotkey_read_nvram(&s[si], mask);
+ if (likely(si != so)) {
+ hotkey_compare_and_issue_event(&s[so], &s[si],
+ mask);
+ }
+ }
+
+ so = si;
+ si ^= 1;
+ }
+
+exit:
+ mutex_unlock(&hotkey_thread_mutex);
+ return 0;
+}
+
+static void hotkey_poll_stop_sync(void)
+{
+ if (tpacpi_hotkey_task) {
+ if (frozen(tpacpi_hotkey_task) ||
+ freezing(tpacpi_hotkey_task))
+ thaw_process(tpacpi_hotkey_task);
+
+ kthread_stop(tpacpi_hotkey_task);
+ tpacpi_hotkey_task = NULL;
+ mutex_lock(&hotkey_thread_mutex);
+ /* at this point, the thread did exit */
+ mutex_unlock(&hotkey_thread_mutex);
+ }
+}
+
+/* call with hotkey_mutex held */
+static void hotkey_poll_setup(int may_warn)
+{
+ if ((hotkey_source_mask & hotkey_mask) != 0 &&
+ hotkey_poll_freq > 0 &&
+ (tpacpi_inputdev->users > 0 || hotkey_report_mode < 2)) {
+ if (!tpacpi_hotkey_task) {
+ tpacpi_hotkey_task = kthread_run(hotkey_kthread,
+ NULL,
+ TPACPI_FILE "d");
+ if (IS_ERR(tpacpi_hotkey_task)) {
+ tpacpi_hotkey_task = NULL;
+ printk(TPACPI_ERR
+ "could not create kernel thread "
+ "for hotkey polling\n");
+ }
+ }
+ } else {
+ hotkey_poll_stop_sync();
+ if (may_warn &&
+ hotkey_source_mask != 0 && hotkey_poll_freq == 0) {
+ printk(TPACPI_NOTICE
+ "hot keys 0x%08x require polling, "
+ "which is currently disabled\n",
+ hotkey_source_mask);
+ }
+ }
+}
+
+static void hotkey_poll_setup_safe(int may_warn)
+{
+ mutex_lock(&hotkey_mutex);
+ hotkey_poll_setup(may_warn);
+ mutex_unlock(&hotkey_mutex);
+}
+
+static int hotkey_inputdev_open(struct input_dev *dev)
+{
+ switch (tpacpi_lifecycle) {
+ case TPACPI_LIFE_INIT:
+ /*
+ * hotkey_init will call hotkey_poll_setup_safe
+ * at the appropriate moment
+ */
+ return 0;
+ case TPACPI_LIFE_EXITING:
+ return -EBUSY;
+ case TPACPI_LIFE_RUNNING:
+ hotkey_poll_setup_safe(0);
+ return 0;
+ }
+
+ /* Should only happen if tpacpi_lifecycle is corrupt */
+ BUG();
+ return -EBUSY;
+}
+
+static void hotkey_inputdev_close(struct input_dev *dev)
+{
+ /* disable hotkey polling when possible */
+ if (tpacpi_lifecycle == TPACPI_LIFE_RUNNING)
+ hotkey_poll_setup_safe(0);
+}
+#endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */
+
+/* sysfs hotkey enable ------------------------------------------------- */
+static ssize_t hotkey_enable_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ int res, status;
- res = hotkey_get(&status, &mask);
+ res = hotkey_status_get(&status);
if (res)
return res;
const char *buf, size_t count)
{
unsigned long t;
- int res, status;
- u32 mask;
+ int res;
if (parse_strtoul(buf, 1, &t))
return -EINVAL;
- res = hotkey_get(&status, &mask);
- if (!res)
- res = hotkey_set(t, mask);
+ res = hotkey_status_set(t);
return (res) ? res : count;
}
struct device_attribute *attr,
char *buf)
{
- int res, status;
- u32 mask;
+ int res;
- res = hotkey_get(&status, &mask);
- if (res)
- return res;
+ if (mutex_lock_interruptible(&hotkey_mutex))
+ return -ERESTARTSYS;
+ res = hotkey_mask_get();
+ mutex_unlock(&hotkey_mutex);
- return snprintf(buf, PAGE_SIZE, "0x%08x\n", mask);
+ return (res)?
+ res : snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_mask);
}
static ssize_t hotkey_mask_store(struct device *dev,
const char *buf, size_t count)
{
unsigned long t;
- int res, status;
- u32 mask;
+ int res;
if (parse_strtoul(buf, 0xffffffffUL, &t))
return -EINVAL;
- res = hotkey_get(&status, &mask);
- if (!res)
- hotkey_set(status, t);
+ if (mutex_lock_interruptible(&hotkey_mutex))
+ return -ERESTARTSYS;
+
+ res = hotkey_mask_set(t);
+
+#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
+ hotkey_poll_setup(1);
+#endif
+
+ mutex_unlock(&hotkey_mutex);
return (res) ? res : count;
}
struct device_attribute *attr,
char *buf)
{
- return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_all_mask);
+ return snprintf(buf, PAGE_SIZE, "0x%08x\n",
+ hotkey_all_mask | hotkey_source_mask);
}
static struct device_attribute dev_attr_hotkey_all_mask =
char *buf)
{
return snprintf(buf, PAGE_SIZE, "0x%08x\n",
- hotkey_all_mask & ~hotkey_reserved_mask);
+ (hotkey_all_mask | hotkey_source_mask)
+ & ~hotkey_reserved_mask);
}
static struct device_attribute dev_attr_hotkey_recommended_mask =
__ATTR(hotkey_recommended_mask, S_IRUGO,
hotkey_recommended_mask_show, NULL);
-/* sysfs hotkey radio_sw ----------------------------------------------- */
+#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
+
+/* sysfs hotkey hotkey_source_mask ------------------------------------- */
+static ssize_t hotkey_source_mask_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask);
+}
+
+static ssize_t hotkey_source_mask_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ unsigned long t;
+
+ if (parse_strtoul(buf, 0xffffffffUL, &t) ||
+ ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0))
+ return -EINVAL;
+
+ if (mutex_lock_interruptible(&hotkey_mutex))
+ return -ERESTARTSYS;
+
+ HOTKEY_CONFIG_CRITICAL_START
+ hotkey_source_mask = t;
+ HOTKEY_CONFIG_CRITICAL_END
+
+ hotkey_poll_setup(1);
+
+ mutex_unlock(&hotkey_mutex);
+
+ return count;
+}
+
+static struct device_attribute dev_attr_hotkey_source_mask =
+ __ATTR(hotkey_source_mask, S_IWUSR | S_IRUGO,
+ hotkey_source_mask_show, hotkey_source_mask_store);
+
+/* sysfs hotkey hotkey_poll_freq --------------------------------------- */
+static ssize_t hotkey_poll_freq_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq);
+}
+
+static ssize_t hotkey_poll_freq_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ unsigned long t;
+
+ if (parse_strtoul(buf, 25, &t))
+ return -EINVAL;
+
+ if (mutex_lock_interruptible(&hotkey_mutex))
+ return -ERESTARTSYS;
+
+ hotkey_poll_freq = t;
+
+ hotkey_poll_setup(1);
+ mutex_unlock(&hotkey_mutex);
+
+ return count;
+}
+
+static struct device_attribute dev_attr_hotkey_poll_freq =
+ __ATTR(hotkey_poll_freq, S_IWUSR | S_IRUGO,
+ hotkey_poll_freq_show, hotkey_poll_freq_store);
+
+#endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */
+
+/* sysfs hotkey radio_sw (pollable) ------------------------------------ */
static ssize_t hotkey_radio_sw_show(struct device *dev,
struct device_attribute *attr,
char *buf)
static struct device_attribute dev_attr_hotkey_radio_sw =
__ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL);
+static void hotkey_radio_sw_notify_change(void)
+{
+ if (tp_features.hotkey_wlsw)
+ sysfs_notify(&tpacpi_pdev->dev.kobj, NULL,
+ "hotkey_radio_sw");
+}
+
/* sysfs hotkey report_mode -------------------------------------------- */
static ssize_t hotkey_report_mode_show(struct device *dev,
struct device_attribute *attr,
static struct device_attribute dev_attr_hotkey_report_mode =
__ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL);
-/* --------------------------------------------------------------------- */
+/* sysfs wakeup reason (pollable) -------------------------------------- */
+static ssize_t hotkey_wakeup_reason_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason);
+}
-static struct attribute *hotkey_attributes[] __initdata = {
- &dev_attr_hotkey_enable.attr,
- &dev_attr_hotkey_report_mode.attr,
-};
+static struct device_attribute dev_attr_hotkey_wakeup_reason =
+ __ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL);
-static struct attribute *hotkey_mask_attributes[] __initdata = {
- &dev_attr_hotkey_mask.attr,
+void hotkey_wakeup_reason_notify_change(void)
+{
+ if (tp_features.hotkey_mask)
+ sysfs_notify(&tpacpi_pdev->dev.kobj, NULL,
+ "wakeup_reason");
+}
+
+/* sysfs wakeup hotunplug_complete (pollable) -------------------------- */
+static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack);
+}
+
+static struct device_attribute dev_attr_hotkey_wakeup_hotunplug_complete =
+ __ATTR(wakeup_hotunplug_complete, S_IRUGO,
+ hotkey_wakeup_hotunplug_complete_show, NULL);
+
+void hotkey_wakeup_hotunplug_complete_notify_change(void)
+{
+ if (tp_features.hotkey_mask)
+ sysfs_notify(&tpacpi_pdev->dev.kobj, NULL,
+ "wakeup_hotunplug_complete");
+}
+
+/* --------------------------------------------------------------------- */
+
+static struct attribute *hotkey_attributes[] __initdata = {
+ &dev_attr_hotkey_enable.attr,
&dev_attr_hotkey_bios_enabled.attr,
+ &dev_attr_hotkey_report_mode.attr,
+#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
+ &dev_attr_hotkey_mask.attr,
+ &dev_attr_hotkey_all_mask.attr,
+ &dev_attr_hotkey_recommended_mask.attr,
+ &dev_attr_hotkey_source_mask.attr,
+ &dev_attr_hotkey_poll_freq.attr,
+#endif
+};
+
+static struct attribute *hotkey_mask_attributes[] __initdata = {
&dev_attr_hotkey_bios_mask.attr,
+#ifndef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
+ &dev_attr_hotkey_mask.attr,
&dev_attr_hotkey_all_mask.attr,
&dev_attr_hotkey_recommended_mask.attr,
+#endif
+ &dev_attr_hotkey_wakeup_reason.attr,
+ &dev_attr_hotkey_wakeup_hotunplug_complete.attr,
};
static int __init hotkey_init(struct ibm_init_struct *iibm)
{
-
+ /* Requirements for changing the default keymaps:
+ *
+ * 1. Many of the keys are mapped to KEY_RESERVED for very
+ * good reasons. Do not change them unless you have deep
+ * knowledge on the IBM and Lenovo ThinkPad firmware for
+ * the various ThinkPad models. The driver behaves
+ * differently for KEY_RESERVED: such keys have their
+ * hot key mask *unset* in mask_recommended, and also
+ * in the initial hot key mask programmed into the
+ * firmware at driver load time, which means the firm-
+ * ware may react very differently if you change them to
+ * something else;
+ *
+ * 2. You must be subscribed to the linux-thinkpad and
+ * ibm-acpi-devel mailing lists, and you should read the
+ * list archives since 2007 if you want to change the
+ * keymaps. This requirement exists so that you will
+ * know the past history of problems with the thinkpad-
+ * acpi driver keymaps, and also that you will be
+ * listening to any bug reports;
+ *
+ * 3. Do not send thinkpad-acpi specific patches directly to
+ * for merging, *ever*. Send them to the linux-acpi
+ * mailinglist for comments. Merging is to be done only
+ * through acpi-test and the ACPI maintainer.
+ *
+ * If the above is too much to ask, don't change the keymap.
+ * Ask the thinkpad-acpi maintainer to do it, instead.
+ */
static u16 ibm_keycode_map[] __initdata = {
/* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */
KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP,
KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8,
KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND,
- /* Scan codes 0x0C to 0x0F: Other ACPI HKEY hot keys */
+
+ /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */
KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */
KEY_UNKNOWN, /* 0x0D: FN+INSERT */
KEY_UNKNOWN, /* 0x0E: FN+DELETE */
+
+ /* brightness: firmware always reacts to them, unless
+ * X.org did some tricks in the radeon BIOS scratch
+ * registers of *some* models */
KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */
- /* Scan codes 0x10 to 0x1F: Extended ACPI HKEY hot keys */
KEY_RESERVED, /* 0x10: FN+END (brightness down) */
+
+ /* Thinklight: firmware always react to it */
KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */
+
KEY_UNKNOWN, /* 0x12: FN+PGDOWN */
KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */
+
+ /* Volume: firmware always react to it and reprograms
+ * the built-in *extra* mixer. Never map it to control
+ * another mixer by default. */
KEY_RESERVED, /* 0x14: VOLUME UP */
KEY_RESERVED, /* 0x15: VOLUME DOWN */
KEY_RESERVED, /* 0x16: MUTE */
+
KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */
+
/* (assignments unknown, please report if found) */
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP,
KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8,
KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND,
- /* Scan codes 0x0C to 0x0F: Other ACPI HKEY hot keys */
+
+ /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */
KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */
KEY_UNKNOWN, /* 0x0D: FN+INSERT */
KEY_UNKNOWN, /* 0x0E: FN+DELETE */
+
KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */
- /* Scan codes 0x10 to 0x1F: Extended ACPI HKEY hot keys */
KEY_RESERVED, /* 0x10: FN+END (brightness down) */
+
KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */
+
KEY_UNKNOWN, /* 0x12: FN+PGDOWN */
KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */
+
+ /* Volume: z60/z61, T60 (BIOS version?): firmware always
+ * react to it and reprograms the built-in *extra* mixer.
+ * Never map it to control another mixer by default.
+ *
+ * T60?, T61, R60?, R61: firmware and EC tries to send
+ * these over the regular keyboard, so these are no-ops,
+ * but there are still weird bugs re. MUTE, so do not
+ * change unless you get test reports from all Lenovo
+ * models. May cause the BIOS to interfere with the
+ * HDA mixer.
+ */
KEY_RESERVED, /* 0x14: VOLUME UP */
KEY_RESERVED, /* 0x15: VOLUME DOWN */
KEY_RESERVED, /* 0x16: MUTE */
+
KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */
+
/* (assignments unknown, please report if found) */
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n");
BUG_ON(!tpacpi_inputdev);
+ BUG_ON(tpacpi_inputdev->open != NULL ||
+ tpacpi_inputdev->close != NULL);
- IBM_ACPIHANDLE_INIT(hkey);
+ TPACPI_ACPIHANDLE_INIT(hkey);
mutex_init(&hotkey_mutex);
+#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
+ mutex_init(&hotkey_thread_mutex);
+ mutex_init(&hotkey_thread_data_mutex);
+#endif
+
/* hotkey not supported on 570 */
tp_features.hotkey = hkey_handle != NULL;
str_supported(tp_features.hotkey));
if (tp_features.hotkey) {
- hotkey_dev_attributes = create_attr_set(8, NULL);
+ hotkey_dev_attributes = create_attr_set(12, NULL);
if (!hotkey_dev_attributes)
return -ENOMEM;
res = add_many_to_attr_set(hotkey_dev_attributes,
for HKEY interface version 0x100 */
if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) {
if ((hkeyv >> 8) != 1) {
- printk(IBM_ERR "unknown version of the "
+ printk(TPACPI_ERR "unknown version of the "
"HKEY interface: 0x%x\n", hkeyv);
- printk(IBM_ERR "please report this to %s\n",
- IBM_MAIL);
+ printk(TPACPI_ERR "please report this to %s\n",
+ TPACPI_MAIL);
} else {
/*
* MHKV 0x100 in A31, R40, R40e,
* T4x, X31, and later
- * */
+ */
tp_features.hotkey_mask = 1;
}
}
if (tp_features.hotkey_mask) {
if (!acpi_evalf(hkey_handle, &hotkey_all_mask,
"MHKA", "qd")) {
- printk(IBM_ERR
+ printk(TPACPI_ERR
"missing MHKA handler, "
"please report this to %s\n",
- IBM_MAIL);
- hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */
+ TPACPI_MAIL);
+ /* FN+F12, FN+F4, FN+F3 */
+ hotkey_all_mask = 0x080cU;
}
}
- res = hotkey_get(&hotkey_orig_status, &hotkey_orig_mask);
+ /* hotkey_source_mask *must* be zero for
+ * the first hotkey_mask_get */
+ res = hotkey_status_get(&hotkey_orig_status);
if (!res && tp_features.hotkey_mask) {
- res = add_many_to_attr_set(hotkey_dev_attributes,
- hotkey_mask_attributes,
- ARRAY_SIZE(hotkey_mask_attributes));
+ res = hotkey_mask_get();
+ hotkey_orig_mask = hotkey_mask;
+ if (!res) {
+ res = add_many_to_attr_set(
+ hotkey_dev_attributes,
+ hotkey_mask_attributes,
+ ARRAY_SIZE(hotkey_mask_attributes));
+ }
+ }
+
+#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
+ if (tp_features.hotkey_mask) {
+ hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK
+ & ~hotkey_all_mask;
+ } else {
+ hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK;
}
+ vdbg_printk(TPACPI_DBG_INIT,
+ "hotkey source mask 0x%08x, polling freq %d\n",
+ hotkey_source_mask, hotkey_poll_freq);
+#endif
+
/* Not all thinkpads have a hardware radio switch */
if (!res && acpi_evalf(hkey_handle, &status, "WLSW", "qd")) {
tp_features.hotkey_wlsw = 1;
- printk(IBM_INFO
+ printk(TPACPI_INFO
"radio switch found; radios are %s\n",
enabled(status, 0));
res = add_to_attr_set(hotkey_dev_attributes,
hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE,
GFP_KERNEL);
if (!hotkey_keycode_map) {
- printk(IBM_ERR "failed to allocate memory for key map\n");
+ printk(TPACPI_ERR
+ "failed to allocate memory for key map\n");
return -ENOMEM;
}
dbg_printk(TPACPI_DBG_INIT,
"enabling hot key handling\n");
- res = hotkey_set(1, (hotkey_all_mask & ~hotkey_reserved_mask)
- | hotkey_orig_mask);
+ res = hotkey_status_set(1);
if (res)
return res;
+ res = hotkey_mask_set(((hotkey_all_mask | hotkey_source_mask)
+ & ~hotkey_reserved_mask)
+ | hotkey_orig_mask);
+ if (res < 0 && res != -ENXIO)
+ return res;
dbg_printk(TPACPI_DBG_INIT,
"legacy hot key reporting over procfs %s\n",
(hotkey_report_mode < 2) ?
"enabled" : "disabled");
+
+#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
+ tpacpi_inputdev->open = &hotkey_inputdev_open;
+ tpacpi_inputdev->close = &hotkey_inputdev_close;
+
+ hotkey_poll_setup_safe(1);
+#endif
}
return (tp_features.hotkey)? 0 : 1;
static void hotkey_exit(void)
{
- int res;
+#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
+ hotkey_poll_stop_sync();
+#endif
if (tp_features.hotkey) {
- dbg_printk(TPACPI_DBG_EXIT, "restoring original hotkey mask\n");
- res = hotkey_set(hotkey_orig_status, hotkey_orig_mask);
- if (res)
- printk(IBM_ERR "failed to restore hotkey to BIOS defaults\n");
+ dbg_printk(TPACPI_DBG_EXIT,
+ "restoring original hot key mask\n");
+ /* no short-circuit boolean operator below! */
+ if ((hotkey_mask_set(hotkey_orig_mask) |
+ hotkey_status_set(hotkey_orig_status)) != 0)
+ printk(TPACPI_ERR
+ "failed to restore hot key mask "
+ "to BIOS defaults\n");
}
if (hotkey_dev_attributes) {
}
}
-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,
- scancode);
- input_sync(tpacpi_inputdev);
-
- input_report_key(tpacpi_inputdev, keycode, 0);
- if (keycode == KEY_UNKNOWN)
- input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN,
- scancode);
- input_sync(tpacpi_inputdev);
-
- mutex_unlock(&tpacpi_inputdev_send_mutex);
- }
-}
-
-static void tpacpi_input_send_radiosw(void)
-{
- int 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;
+ unsigned int scancode;
int send_acpi_ev;
int ignore_acpi_ev;
+ int unk_ev;
if (event != 0x80) {
- printk(IBM_ERR "unknown HKEY notification event %d\n", event);
+ printk(TPACPI_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);
+ 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");
+ printk(TPACPI_ERR "failed to retrieve HKEY event\n");
return;
}
return;
}
- send_acpi_ev = 0;
+ send_acpi_ev = 1;
ignore_acpi_ev = 0;
+ unk_ev = 0;
switch (hkey >> 12) {
case 1:
scancode = hkey & 0xfff;
if (scancode > 0 && scancode < 0x21) {
scancode--;
- keycode = hotkey_keycode_map[scancode];
- tpacpi_input_send_key(scancode, keycode);
+ if (!(hotkey_source_mask & (1 << scancode))) {
+ tpacpi_input_send_key(scancode);
+ send_acpi_ev = 0;
+ } else {
+ ignore_acpi_ev = 1;
+ }
} else {
- printk(IBM_ERR
- "hotkey 0x%04x out of range for keyboard map\n",
- hkey);
- send_acpi_ev = 1;
+ unk_ev = 1;
}
break;
- case 5:
- /* 0x5000-0x5FFF: LID */
- /* we don't handle it through this path, just
- * eat up known LID events */
- if (hkey != 0x5001 && hkey != 0x5002) {
- printk(IBM_ERR
- "unknown LID-related HKEY event: 0x%04x\n",
- hkey);
- send_acpi_ev = 1;
+ case 2:
+ /* Wakeup reason */
+ switch (hkey) {
+ case 0x2304: /* suspend, undock */
+ case 0x2404: /* hibernation, undock */
+ hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK;
+ ignore_acpi_ev = 1;
+ break;
+ case 0x2305: /* suspend, bay eject */
+ case 0x2405: /* hibernation, bay eject */
+ hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ;
+ ignore_acpi_ev = 1;
+ break;
+ default:
+ unk_ev = 1;
+ }
+ if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) {
+ printk(TPACPI_INFO
+ "woke up due to a hot-unplug "
+ "request...\n");
+ hotkey_wakeup_reason_notify_change();
+ }
+ break;
+ case 3:
+ /* bay-related wakeups */
+ if (hkey == 0x3003) {
+ hotkey_autosleep_ack = 1;
+ printk(TPACPI_INFO
+ "bay ejected\n");
+ hotkey_wakeup_hotunplug_complete_notify_change();
+ } else {
+ unk_ev = 1;
+ }
+ break;
+ case 4:
+ /* dock-related wakeups */
+ if (hkey == 0x4003) {
+ hotkey_autosleep_ack = 1;
+ printk(TPACPI_INFO
+ "undocked\n");
+ hotkey_wakeup_hotunplug_complete_notify_change();
} else {
+ unk_ev = 1;
+ }
+ break;
+ case 5:
+ /* 0x5000-0x5FFF: human interface helpers */
+ switch (hkey) {
+ case 0x5010: /* Lenovo new BIOS: brightness changed */
+ case 0x5009: /* X61t: swivel up (tablet mode) */
+ case 0x500a: /* X61t: swivel down (normal mode) */
+ case 0x500b: /* X61t: tablet pen inserted into bay */
+ case 0x500c: /* X61t: tablet pen removed from bay */
+ break;
+ case 0x5001:
+ case 0x5002:
+ /* LID switch events. Do not propagate */
ignore_acpi_ev = 1;
+ break;
+ default:
+ unk_ev = 1;
}
break;
case 7:
/* 0x7000-0x7FFF: misc */
if (tp_features.hotkey_wlsw && hkey == 0x7000) {
tpacpi_input_send_radiosw();
+ hotkey_radio_sw_notify_change();
+ send_acpi_ev = 0;
break;
}
/* fallthrough to default */
default:
- /* case 2: dock-related */
- /* 0x2305 - T43 waking up due to bay lever eject while aslept */
- /* case 3: ultra-bay related. maybe bay in dock? */
- /* 0x3003 - T43 after wake up by bay lever eject (0x2305) */
- printk(IBM_NOTICE "unhandled HKEY event 0x%04x\n", hkey);
- send_acpi_ev = 1;
+ unk_ev = 1;
+ }
+ if (unk_ev) {
+ printk(TPACPI_NOTICE
+ "unhandled HKEY event 0x%04x\n", hkey);
}
/* Legacy events */
- if (!ignore_acpi_ev && (send_acpi_ev || hotkey_report_mode < 2)) {
- acpi_bus_generate_proc_event(ibm->acpi->device, event, hkey);
+ if (!ignore_acpi_ev &&
+ (send_acpi_ev || hotkey_report_mode < 2)) {
+ acpi_bus_generate_proc_event(ibm->acpi->device,
+ 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);
+ acpi_bus_generate_netlink_event(
+ ibm->acpi->device->pnp.device_class,
+ ibm->acpi->device->dev.bus_id,
+ event, hkey);
}
}
}
-static void hotkey_resume(void)
-{
- tpacpi_input_send_radiosw();
-}
-
-/*
- * Call with hotkey_mutex held
- */
-static int hotkey_get(int *status, u32 *mask)
+static void hotkey_suspend(pm_message_t state)
{
- if (!acpi_evalf(hkey_handle, status, "DHKC", "d"))
- return -EIO;
-
- if (tp_features.hotkey_mask)
- if (!acpi_evalf(hkey_handle, mask, "DHKN", "d"))
- return -EIO;
-
- return 0;
+ /* Do these on suspend, we get the events on early resume! */
+ hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE;
+ hotkey_autosleep_ack = 0;
}
-/*
- * Call with hotkey_mutex held
- */
-static int hotkey_set(int status, u32 mask)
+static void hotkey_resume(void)
{
- int i;
-
- if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status))
- return -EIO;
-
- if (tp_features.hotkey_mask)
- for (i = 0; i < 32; i++) {
- int bit = ((1 << i) & mask) != 0;
- if (!acpi_evalf(hkey_handle,
- NULL, "MHKM", "vdd", i + 1, bit))
- return -EIO;
- }
-
- return 0;
+ if (hotkey_mask_get())
+ printk(TPACPI_ERR
+ "error while trying to read hot key mask "
+ "from firmware\n");
+ tpacpi_input_send_radiosw();
+ hotkey_radio_sw_notify_change();
+ hotkey_wakeup_reason_notify_change();
+ hotkey_wakeup_hotunplug_complete_notify_change();
+#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
+ hotkey_poll_setup_safe(0);
+#endif
}
/* procfs -------------------------------------------------------------- */
static int hotkey_read(char *p)
{
int res, status;
- u32 mask;
int len = 0;
if (!tp_features.hotkey) {
if (mutex_lock_interruptible(&hotkey_mutex))
return -ERESTARTSYS;
- res = hotkey_get(&status, &mask);
+ res = hotkey_status_get(&status);
+ if (!res)
+ res = hotkey_mask_get();
mutex_unlock(&hotkey_mutex);
if (res)
return res;
len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0));
if (tp_features.hotkey_mask) {
- len += sprintf(p + len, "mask:\t\t0x%08x\n", mask);
+ len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_mask);
len += sprintf(p + len,
"commands:\tenable, disable, reset, <mask>\n");
} else {
int res, status;
u32 mask;
char *cmd;
- int do_cmd = 0;
if (!tp_features.hotkey)
return -ENODEV;
if (mutex_lock_interruptible(&hotkey_mutex))
return -ERESTARTSYS;
- res = hotkey_get(&status, &mask);
- if (res)
- goto errexit;
+ status = -1;
+ mask = hotkey_mask;
res = 0;
while ((cmd = next_cmd(&buf))) {
res = -EINVAL;
goto errexit;
}
- do_cmd = 1;
}
+ if (status != -1)
+ res = hotkey_status_set(status);
- if (do_cmd)
- res = hotkey_set(status, mask);
+ if (!res && mask != hotkey_mask)
+ res = hotkey_mask_set(mask);
errexit:
mutex_unlock(&hotkey_mutex);
}
static const struct acpi_device_id ibm_htk_device_ids[] = {
- {IBM_HKEY_HID, 0},
+ {TPACPI_ACPI_HKEY_HID, 0},
{"", 0},
};
.write = hotkey_write,
.exit = hotkey_exit,
.resume = hotkey_resume,
+ .suspend = hotkey_suspend,
.acpi = &ibm_hotkey_acpidriver,
};
* Bluetooth subdriver
*/
+enum {
+ /* ACPI GBDC/SBDC bits */
+ TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */
+ TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */
+ TP_ACPI_BLUETOOTH_UNK = 0x04, /* unknown function */
+};
+
+static int bluetooth_get_radiosw(void);
+static int bluetooth_set_radiosw(int radio_on);
+
/* sysfs bluetooth enable ---------------------------------------------- */
static ssize_t bluetooth_enable_show(struct device *dev,
struct device_attribute *attr,
vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n");
- IBM_ACPIHANDLE_INIT(hkey);
+ TPACPI_ACPIHANDLE_INIT(hkey);
/* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p,
G4x, R30, R31, R40e, R50e, T20-22, X20-21 */
* Wan subdriver
*/
+enum {
+ /* ACPI GWAN/SWAN bits */
+ TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */
+ TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */
+ TP_ACPI_WANCARD_UNK = 0x04, /* unknown function */
+};
+
+static int wan_get_radiosw(void);
+static int wan_set_radiosw(int radio_on);
+
/* sysfs wan enable ---------------------------------------------------- */
static ssize_t wan_enable_show(struct device *dev,
struct device_attribute *attr,
vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n");
- IBM_ACPIHANDLE_INIT(hkey);
+ TPACPI_ACPIHANDLE_INIT(hkey);
tp_features.wan = hkey_handle &&
acpi_evalf(hkey_handle, &status, "GWAN", "qd");
* Video subdriver
*/
+enum video_access_mode {
+ TPACPI_VIDEO_NONE = 0,
+ TPACPI_VIDEO_570, /* 570 */
+ TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */
+ TPACPI_VIDEO_NEW, /* all others */
+};
+
+enum { /* video status flags, based on VIDEO_570 */
+ TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */
+ TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */
+ TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */
+};
+
+enum { /* TPACPI_VIDEO_570 constants */
+ TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */
+ TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to
+ * video_status_flags */
+ TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */
+ TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */
+};
+
static enum video_access_mode video_supported;
static int video_orig_autosw;
-IBM_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */
+static int video_autosw_get(void);
+static int video_autosw_set(int enable);
+
+TPACPI_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */
"\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */
"\\_SB.PCI0.VID0", /* 770e */
"\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */
"\\_SB.PCI0.AGP.VID", /* all others */
); /* R30, R31 */
-IBM_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */
+TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */
static int __init video_init(struct ibm_init_struct *iibm)
{
vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n");
- IBM_ACPIHANDLE_INIT(vid);
- IBM_ACPIHANDLE_INIT(vid2);
+ TPACPI_ACPIHANDLE_INIT(vid);
+ TPACPI_ACPIHANDLE_INIT(vid2);
if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga)
/* G41, assume IVGA doesn't change */
dbg_printk(TPACPI_DBG_EXIT,
"restoring original video autoswitch mode\n");
if (video_autosw_set(video_orig_autosw))
- printk(IBM_ERR "error while trying to restore original "
+ printk(TPACPI_ERR "error while trying to restore original "
"video autoswitch mode\n");
}
res = acpi_evalf(vid_handle, NULL,
"ASWT", "vdd", status * 0x100, 0);
if (!autosw && video_autosw_set(autosw)) {
- printk(IBM_ERR "video auto-switch left enabled due to error\n");
+ printk(TPACPI_ERR
+ "video auto-switch left enabled due to error\n");
return -EIO;
}
break;
case TPACPI_VIDEO_NEW:
res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) &&
- acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1);
+ acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1);
break;
default:
return -ENOSYS;
return -ENOSYS;
}
if (!autosw && video_autosw_set(autosw)) {
- printk(IBM_ERR "video auto-switch left enabled due to error\n");
+ printk(TPACPI_ERR
+ "video auto-switch left enabled due to error\n");
return -EIO;
}
* Light (thinklight) subdriver
*/
-IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */
-IBM_HANDLE(ledb, ec, "LEDB"); /* G4x */
+TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */
+TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */
static int __init light_init(struct ibm_init_struct *iibm)
{
vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n");
- IBM_ACPIHANDLE_INIT(ledb);
- IBM_ACPIHANDLE_INIT(lght);
- IBM_ACPIHANDLE_INIT(cmos);
+ TPACPI_ACPIHANDLE_INIT(ledb);
+ TPACPI_ACPIHANDLE_INIT(lght);
+ TPACPI_ACPIHANDLE_INIT(cmos);
/* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */
tp_features.light = (cmos_handle || lght_handle) && !ledb_handle;
#ifdef CONFIG_THINKPAD_ACPI_DOCK
-IBM_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */
+static void dock_notify(struct ibm_struct *ibm, u32 event);
+static int dock_read(char *p);
+static int dock_write(char *buf);
+
+TPACPI_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */
"\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */
"\\_SB.PCI0.PCI1.DOCK", /* all others */
"\\_SB.PCI.ISA.SLCE", /* 570 */
); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */
/* don't list other alternatives as we install a notify handler on the 570 */
-IBM_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */
+TPACPI_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */
static const struct acpi_device_id ibm_pci_device_ids[] = {
{PCI_ROOT_HID_STRING, 0},
{
vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n");
- IBM_ACPIHANDLE_INIT(dock);
+ TPACPI_ACPIHANDLE_INIT(dock);
vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n",
str_supported(dock_handle != NULL));
if (dock_driver_data[0].flags.acpi_driver_registered &&
dock_driver_data[0].flags.acpi_notify_installed) {
- IBM_ACPIHANDLE_INIT(pci);
+ TPACPI_ACPIHANDLE_INIT(pci);
dock2_needed = (pci_handle != NULL);
vdbg_printk(TPACPI_DBG_INIT,
"dock PCI handler for the TP 570 is %s\n",
else if (event == 0 && docked)
data = 3; /* dock */
else {
- printk(IBM_ERR "unknown dock event %d, status %d\n",
+ printk(TPACPI_ERR "unknown dock event %d, status %d\n",
event, _sta(dock_handle));
data = 0; /* unknown */
}
*/
#ifdef CONFIG_THINKPAD_ACPI_BAY
-IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */
+
+TPACPI_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */
"\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */
"\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */
"\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */
); /* A21e, R30, R31 */
-IBM_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */
+TPACPI_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */
"_EJ0", /* all others */
); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */
-IBM_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */
+TPACPI_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */
"\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */
); /* all others */
-IBM_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */
+TPACPI_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */
"_EJ0", /* 770x */
); /* all others */
{
vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n");
- IBM_ACPIHANDLE_INIT(bay);
+ TPACPI_ACPIHANDLE_INIT(bay);
if (bay_handle)
- IBM_ACPIHANDLE_INIT(bay_ej);
- IBM_ACPIHANDLE_INIT(bay2);
+ TPACPI_ACPIHANDLE_INIT(bay_ej);
+ TPACPI_ACPIHANDLE_INIT(bay2);
if (bay2_handle)
- IBM_ACPIHANDLE_INIT(bay2_ej);
+ TPACPI_ACPIHANDLE_INIT(bay2_ej);
tp_features.bay_status = bay_handle &&
acpi_evalf(bay_handle, NULL, "_STA", "qv");
vdbg_printk(TPACPI_DBG_INIT,
"initializing cmos commands subdriver\n");
- IBM_ACPIHANDLE_INIT(cmos);
+ TPACPI_ACPIHANDLE_INIT(cmos);
vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n",
str_supported(cmos_handle != NULL));
* LED subdriver
*/
+enum led_access_mode {
+ TPACPI_LED_NONE = 0,
+ TPACPI_LED_570, /* 570 */
+ TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */
+ TPACPI_LED_NEW, /* all others */
+};
+
+enum { /* For TPACPI_LED_OLD */
+ TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */
+ TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */
+ TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */
+};
+
static enum led_access_mode led_supported;
-IBM_HANDLE(led, ec, "SLED", /* 570 */
- "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */
+TPACPI_HANDLE(led, ec, "SLED", /* 570 */
+ "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, */
+ /* T20-22, X20-21 */
"LED", /* all others */
); /* R30, R31 */
{
vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n");
- IBM_ACPIHANDLE_INIT(led);
+ TPACPI_ACPIHANDLE_INIT(led);
if (!led_handle)
/* led not supported on R30, R31 */
led = 1 << led;
ret = ec_write(TPACPI_LED_EC_HLMS, led);
if (ret >= 0)
- ret =
- ec_write(TPACPI_LED_EC_HLBL,
- led * led_exp_hlbl[ind]);
+ ret = ec_write(TPACPI_LED_EC_HLBL,
+ led * led_exp_hlbl[ind]);
if (ret >= 0)
- ret =
- ec_write(TPACPI_LED_EC_HLCL,
- led * led_exp_hlcl[ind]);
+ ret = ec_write(TPACPI_LED_EC_HLCL,
+ led * led_exp_hlcl[ind]);
if (ret < 0)
return ret;
} else {
* Beep subdriver
*/
-IBM_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */
+TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */
static int __init beep_init(struct ibm_init_struct *iibm)
{
vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n");
- IBM_ACPIHANDLE_INIT(beep);
+ TPACPI_ACPIHANDLE_INIT(beep);
vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n",
str_supported(beep_handle != NULL));
* Thermal subdriver
*/
-static enum thermal_access_mode thermal_read_mode;
-
-/* sysfs temp##_input -------------------------------------------------- */
-
-static ssize_t thermal_temp_input_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct sensor_device_attribute *sensor_attr =
- to_sensor_dev_attr(attr);
- int idx = sensor_attr->index;
- s32 value;
- int res;
-
- res = thermal_get_sensor(idx, &value);
- if (res)
- return res;
- if (value == TP_EC_THERMAL_TMP_NA * 1000)
- return -ENXIO;
-
- return snprintf(buf, PAGE_SIZE, "%d\n", value);
-}
-
-#define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \
- SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, thermal_temp_input_show, NULL, _idxB)
-
-static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = {
- THERMAL_SENSOR_ATTR_TEMP(1, 0),
- THERMAL_SENSOR_ATTR_TEMP(2, 1),
- THERMAL_SENSOR_ATTR_TEMP(3, 2),
- THERMAL_SENSOR_ATTR_TEMP(4, 3),
- THERMAL_SENSOR_ATTR_TEMP(5, 4),
- THERMAL_SENSOR_ATTR_TEMP(6, 5),
- THERMAL_SENSOR_ATTR_TEMP(7, 6),
- THERMAL_SENSOR_ATTR_TEMP(8, 7),
- THERMAL_SENSOR_ATTR_TEMP(9, 8),
- THERMAL_SENSOR_ATTR_TEMP(10, 9),
- THERMAL_SENSOR_ATTR_TEMP(11, 10),
- THERMAL_SENSOR_ATTR_TEMP(12, 11),
- THERMAL_SENSOR_ATTR_TEMP(13, 12),
- THERMAL_SENSOR_ATTR_TEMP(14, 13),
- THERMAL_SENSOR_ATTR_TEMP(15, 14),
- THERMAL_SENSOR_ATTR_TEMP(16, 15),
-};
-
-#define THERMAL_ATTRS(X) \
- &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr
-
-static struct attribute *thermal_temp_input_attr[] = {
- THERMAL_ATTRS(8),
- THERMAL_ATTRS(9),
- THERMAL_ATTRS(10),
- THERMAL_ATTRS(11),
- THERMAL_ATTRS(12),
- THERMAL_ATTRS(13),
- THERMAL_ATTRS(14),
- THERMAL_ATTRS(15),
- THERMAL_ATTRS(0),
- THERMAL_ATTRS(1),
- THERMAL_ATTRS(2),
- THERMAL_ATTRS(3),
- THERMAL_ATTRS(4),
- THERMAL_ATTRS(5),
- THERMAL_ATTRS(6),
- THERMAL_ATTRS(7),
- NULL
+enum thermal_access_mode {
+ TPACPI_THERMAL_NONE = 0, /* No thermal support */
+ TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */
+ TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */
+ TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */
+ TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */
};
-static const struct attribute_group thermal_temp_input16_group = {
- .attrs = thermal_temp_input_attr
+enum { /* TPACPI_THERMAL_TPEC_* */
+ TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */
+ TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */
+ TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */
};
-static const struct attribute_group thermal_temp_input8_group = {
- .attrs = &thermal_temp_input_attr[8]
+#define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */
+struct ibm_thermal_sensors_struct {
+ s32 temp[TPACPI_MAX_THERMAL_SENSORS];
};
-#undef THERMAL_SENSOR_ATTR_TEMP
-#undef THERMAL_ATTRS
-
-/* --------------------------------------------------------------------- */
+static enum thermal_access_mode thermal_read_mode;
-static int __init thermal_init(struct ibm_init_struct *iibm)
+/* idx is zero-based */
+static int thermal_get_sensor(int idx, s32 *value)
{
- u8 t, ta1, ta2;
+ int t;
+ s8 tmp;
+ char tmpi[5];
+
+ t = TP_EC_THERMAL_TMP0;
+
+ switch (thermal_read_mode) {
+#if TPACPI_MAX_THERMAL_SENSORS >= 16
+ case TPACPI_THERMAL_TPEC_16:
+ if (idx >= 8 && idx <= 15) {
+ t = TP_EC_THERMAL_TMP8;
+ idx -= 8;
+ }
+ /* fallthrough */
+#endif
+ case TPACPI_THERMAL_TPEC_8:
+ if (idx <= 7) {
+ if (!acpi_ec_read(t + idx, &tmp))
+ return -EIO;
+ *value = tmp * 1000;
+ return 0;
+ }
+ break;
+
+ case TPACPI_THERMAL_ACPI_UPDT:
+ if (idx <= 7) {
+ snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx);
+ if (!acpi_evalf(ec_handle, NULL, "UPDT", "v"))
+ return -EIO;
+ if (!acpi_evalf(ec_handle, &t, tmpi, "d"))
+ return -EIO;
+ *value = (t - 2732) * 100;
+ return 0;
+ }
+ break;
+
+ case TPACPI_THERMAL_ACPI_TMP07:
+ if (idx <= 7) {
+ snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx);
+ if (!acpi_evalf(ec_handle, &t, tmpi, "d"))
+ return -EIO;
+ if (t > 127 || t < -127)
+ t = TP_EC_THERMAL_TMP_NA;
+ *value = t * 1000;
+ return 0;
+ }
+ break;
+
+ case TPACPI_THERMAL_NONE:
+ default:
+ return -ENOSYS;
+ }
+
+ return -EINVAL;
+}
+
+static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s)
+{
+ int res, i;
+ int n;
+
+ n = 8;
+ i = 0;
+
+ if (!s)
+ return -EINVAL;
+
+ if (thermal_read_mode == TPACPI_THERMAL_TPEC_16)
+ n = 16;
+
+ for (i = 0 ; i < n; i++) {
+ res = thermal_get_sensor(i, &s->temp[i]);
+ if (res)
+ return res;
+ }
+
+ return n;
+}
+
+/* sysfs temp##_input -------------------------------------------------- */
+
+static ssize_t thermal_temp_input_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct sensor_device_attribute *sensor_attr =
+ to_sensor_dev_attr(attr);
+ int idx = sensor_attr->index;
+ s32 value;
+ int res;
+
+ res = thermal_get_sensor(idx, &value);
+ if (res)
+ return res;
+ if (value == TP_EC_THERMAL_TMP_NA * 1000)
+ return -ENXIO;
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", value);
+}
+
+#define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \
+ SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \
+ thermal_temp_input_show, NULL, _idxB)
+
+static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = {
+ THERMAL_SENSOR_ATTR_TEMP(1, 0),
+ THERMAL_SENSOR_ATTR_TEMP(2, 1),
+ THERMAL_SENSOR_ATTR_TEMP(3, 2),
+ THERMAL_SENSOR_ATTR_TEMP(4, 3),
+ THERMAL_SENSOR_ATTR_TEMP(5, 4),
+ THERMAL_SENSOR_ATTR_TEMP(6, 5),
+ THERMAL_SENSOR_ATTR_TEMP(7, 6),
+ THERMAL_SENSOR_ATTR_TEMP(8, 7),
+ THERMAL_SENSOR_ATTR_TEMP(9, 8),
+ THERMAL_SENSOR_ATTR_TEMP(10, 9),
+ THERMAL_SENSOR_ATTR_TEMP(11, 10),
+ THERMAL_SENSOR_ATTR_TEMP(12, 11),
+ THERMAL_SENSOR_ATTR_TEMP(13, 12),
+ THERMAL_SENSOR_ATTR_TEMP(14, 13),
+ THERMAL_SENSOR_ATTR_TEMP(15, 14),
+ THERMAL_SENSOR_ATTR_TEMP(16, 15),
+};
+
+#define THERMAL_ATTRS(X) \
+ &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr
+
+static struct attribute *thermal_temp_input_attr[] = {
+ THERMAL_ATTRS(8),
+ THERMAL_ATTRS(9),
+ THERMAL_ATTRS(10),
+ THERMAL_ATTRS(11),
+ THERMAL_ATTRS(12),
+ THERMAL_ATTRS(13),
+ THERMAL_ATTRS(14),
+ THERMAL_ATTRS(15),
+ THERMAL_ATTRS(0),
+ THERMAL_ATTRS(1),
+ THERMAL_ATTRS(2),
+ THERMAL_ATTRS(3),
+ THERMAL_ATTRS(4),
+ THERMAL_ATTRS(5),
+ THERMAL_ATTRS(6),
+ THERMAL_ATTRS(7),
+ NULL
+};
+
+static const struct attribute_group thermal_temp_input16_group = {
+ .attrs = thermal_temp_input_attr
+};
+
+static const struct attribute_group thermal_temp_input8_group = {
+ .attrs = &thermal_temp_input_attr[8]
+};
+
+#undef THERMAL_SENSOR_ATTR_TEMP
+#undef THERMAL_ATTRS
+
+/* --------------------------------------------------------------------- */
+
+static int __init thermal_init(struct ibm_init_struct *iibm)
+{
+ u8 t, ta1, ta2;
int i;
int acpi_tmp7;
int res;
if (ta1 == 0) {
/* This is sheer paranoia, but we handle it anyway */
if (acpi_tmp7) {
- printk(IBM_ERR
+ printk(TPACPI_ERR
"ThinkPad ACPI EC access misbehaving, "
- "falling back to ACPI TMPx access mode\n");
+ "falling back to ACPI TMPx access "
+ "mode\n");
thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07;
} else {
- printk(IBM_ERR
+ printk(TPACPI_ERR
"ThinkPad ACPI EC access misbehaving, "
"disabling thermal sensors access\n");
thermal_read_mode = TPACPI_THERMAL_NONE;
str_supported(thermal_read_mode != TPACPI_THERMAL_NONE),
thermal_read_mode);
- switch(thermal_read_mode) {
+ switch (thermal_read_mode) {
case TPACPI_THERMAL_TPEC_16:
res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj,
&thermal_temp_input16_group);
static void thermal_exit(void)
{
- switch(thermal_read_mode) {
+ switch (thermal_read_mode) {
case TPACPI_THERMAL_TPEC_16:
sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj,
&thermal_temp_input16_group);
}
}
-/* idx is zero-based */
-static int thermal_get_sensor(int idx, s32 *value)
-{
- int t;
- s8 tmp;
- char tmpi[5];
-
- t = TP_EC_THERMAL_TMP0;
-
- switch (thermal_read_mode) {
-#if TPACPI_MAX_THERMAL_SENSORS >= 16
- case TPACPI_THERMAL_TPEC_16:
- if (idx >= 8 && idx <= 15) {
- t = TP_EC_THERMAL_TMP8;
- idx -= 8;
- }
- /* fallthrough */
-#endif
- case TPACPI_THERMAL_TPEC_8:
- if (idx <= 7) {
- if (!acpi_ec_read(t + idx, &tmp))
- return -EIO;
- *value = tmp * 1000;
- return 0;
- }
- break;
-
- case TPACPI_THERMAL_ACPI_UPDT:
- if (idx <= 7) {
- snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx);
- if (!acpi_evalf(ec_handle, NULL, "UPDT", "v"))
- return -EIO;
- if (!acpi_evalf(ec_handle, &t, tmpi, "d"))
- return -EIO;
- *value = (t - 2732) * 100;
- return 0;
- }
- break;
-
- case TPACPI_THERMAL_ACPI_TMP07:
- if (idx <= 7) {
- snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx);
- if (!acpi_evalf(ec_handle, &t, tmpi, "d"))
- return -EIO;
- if (t > 127 || t < -127)
- t = TP_EC_THERMAL_TMP_NA;
- *value = t * 1000;
- return 0;
- }
- break;
-
- case TPACPI_THERMAL_NONE:
- default:
- return -ENOSYS;
- }
-
- return -EINVAL;
-}
-
-static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s)
-{
- int res, i;
- int n;
-
- n = 8;
- i = 0;
-
- if (!s)
- return -EINVAL;
-
- if (thermal_read_mode == TPACPI_THERMAL_TPEC_16)
- n = 16;
-
- for(i = 0 ; i < n; i++) {
- res = thermal_get_sensor(i, &s->temp[i]);
- if (res)
- return res;
- }
-
- return n;
-}
-
static int thermal_read(char *p)
{
int len = 0;
* Backlight/brightness subdriver
*/
-static struct backlight_device *ibm_backlight_device;
+#define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen"
-static struct backlight_ops ibm_backlight_data = {
- .get_brightness = brightness_get,
- .update_status = brightness_update_status,
-};
+static struct backlight_device *ibm_backlight_device;
+static int brightness_offset = 0x31;
+static int brightness_mode;
+static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */
static struct mutex brightness_mutex;
-static int __init tpacpi_query_bcll_levels(acpi_handle handle)
+/*
+ * ThinkPads can read brightness from two places: EC 0x31, or
+ * CMOS NVRAM byte 0x5E, bits 0-3.
+ */
+static int brightness_get(struct backlight_device *bd)
{
- struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object *obj;
+ u8 lec = 0, lcmos = 0, level = 0;
+
+ if (brightness_mode & 1) {
+ if (!acpi_ec_read(brightness_offset, &lec))
+ return -EIO;
+ lec &= (tp_features.bright_16levels)? 0x0f : 0x07;
+ level = lec;
+ };
+ if (brightness_mode & 2) {
+ lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS)
+ & TP_NVRAM_MASK_LEVEL_BRIGHTNESS)
+ >> TP_NVRAM_POS_LEVEL_BRIGHTNESS;
+ lcmos &= (tp_features.bright_16levels)? 0x0f : 0x07;
+ level = lcmos;
+ }
+
+ if (brightness_mode == 3 && lec != lcmos) {
+ printk(TPACPI_ERR
+ "CMOS NVRAM (%u) and EC (%u) do not agree "
+ "on display brightness level\n",
+ (unsigned int) lcmos,
+ (unsigned int) lec);
+ return -EIO;
+ }
+
+ return level;
+}
+
+/* May return EINTR which can always be mapped to ERESTARTSYS */
+static int brightness_set(int value)
+{
+ int cmos_cmd, inc, i, res;
+ int current_value;
+
+ if (value > ((tp_features.bright_16levels)? 15 : 7))
+ return -EINVAL;
+
+ res = mutex_lock_interruptible(&brightness_mutex);
+ if (res < 0)
+ return res;
+
+ current_value = brightness_get(NULL);
+ if (current_value < 0) {
+ res = current_value;
+ goto errout;
+ }
+
+ cmos_cmd = value > current_value ?
+ TP_CMOS_BRIGHTNESS_UP :
+ TP_CMOS_BRIGHTNESS_DOWN;
+ inc = (value > current_value)? 1 : -1;
+
+ res = 0;
+ for (i = current_value; i != value; i += inc) {
+ if ((brightness_mode & 2) &&
+ issue_thinkpad_cmos_command(cmos_cmd)) {
+ res = -EIO;
+ goto errout;
+ }
+ if ((brightness_mode & 1) &&
+ !acpi_ec_write(brightness_offset, i + inc)) {
+ res = -EIO;
+ goto errout;;
+ }
+ }
+
+errout:
+ mutex_unlock(&brightness_mutex);
+ return res;
+}
+
+/* sysfs backlight class ----------------------------------------------- */
+
+static int brightness_update_status(struct backlight_device *bd)
+{
+ /* it is the backlight class's job (caller) to handle
+ * EINTR and other errors properly */
+ return brightness_set(
+ (bd->props.fb_blank == FB_BLANK_UNBLANK &&
+ bd->props.power == FB_BLANK_UNBLANK) ?
+ bd->props.brightness : 0);
+}
+
+static struct backlight_ops ibm_backlight_data = {
+ .get_brightness = brightness_get,
+ .update_status = brightness_update_status,
+};
+
+/* --------------------------------------------------------------------- */
+
+static int __init tpacpi_query_bcll_levels(acpi_handle handle)
+{
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ union acpi_object *obj;
int rc;
if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) {
obj = (union acpi_object *)buffer.pointer;
if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) {
- printk(IBM_ERR "Unknown BCLL data, "
- "please report this to %s\n", IBM_MAIL);
+ printk(TPACPI_ERR "Unknown BCLL data, "
+ "please report this to %s\n", TPACPI_MAIL);
rc = 0;
} else {
rc = obj->package.count;
void *found_node = NULL;
if (!vid_handle) {
- IBM_ACPIHANDLE_INIT(vid);
+ TPACPI_ACPIHANDLE_INIT(vid);
}
if (!vid_handle)
return 0;
/* Search for a BCLL package with 16 levels */
status = acpi_walk_namespace(ACPI_TYPE_PACKAGE, vid_handle, 3,
- brightness_find_bcll, NULL, &found_node);
+ brightness_find_bcll, NULL,
+ &found_node);
return (ACPI_SUCCESS(status) && found_node != NULL);
}
void *found_node = NULL;
if (!vid_handle) {
- IBM_ACPIHANDLE_INIT(vid);
+ TPACPI_ACPIHANDLE_INIT(vid);
}
if (!vid_handle)
return 0;
/* Search for a _BCL method, but don't execute it */
status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3,
- brightness_find_bcl, NULL, &found_node);
+ brightness_find_bcl, NULL, &found_node);
return (ACPI_SUCCESS(status) && found_node != NULL);
}
if (!brightness_enable) {
dbg_printk(TPACPI_DBG_INIT,
- "brightness support disabled by module parameter\n");
+ "brightness support disabled by "
+ "module parameter\n");
return 1;
} else if (brightness_enable > 1) {
if (brightness_check_std_acpi_support()) {
- printk(IBM_NOTICE
- "standard ACPI backlight interface available, not loading native one...\n");
+ printk(TPACPI_NOTICE
+ "standard ACPI backlight interface "
+ "available, not loading native one...\n");
return 1;
}
}
return 1;
if (tp_features.bright_16levels)
- printk(IBM_INFO "detected a 16-level brightness capable ThinkPad\n");
+ printk(TPACPI_INFO
+ "detected a 16-level brightness capable ThinkPad\n");
ibm_backlight_device = backlight_device_register(
TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL,
&ibm_backlight_data);
if (IS_ERR(ibm_backlight_device)) {
- printk(IBM_ERR "Could not register backlight device\n");
+ printk(TPACPI_ERR "Could not register backlight device\n");
return PTR_ERR(ibm_backlight_device);
}
vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n");
}
}
-static int brightness_update_status(struct backlight_device *bd)
-{
- /* it is the backlight class's job (caller) to handle
- * EINTR and other errors properly */
- return brightness_set(
- (bd->props.fb_blank == FB_BLANK_UNBLANK &&
- bd->props.power == FB_BLANK_UNBLANK) ?
- bd->props.brightness : 0);
-}
-
-/*
- * ThinkPads can read brightness from two places: EC 0x31, or
- * CMOS NVRAM byte 0x5E, bits 0-3.
- */
-static int brightness_get(struct backlight_device *bd)
-{
- u8 lec = 0, lcmos = 0, level = 0;
-
- if (brightness_mode & 1) {
- if (!acpi_ec_read(brightness_offset, &lec))
- return -EIO;
- lec &= (tp_features.bright_16levels)? 0x0f : 0x07;
- level = lec;
- };
- if (brightness_mode & 2) {
- lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS)
- & TP_NVRAM_MASK_LEVEL_BRIGHTNESS)
- >> TP_NVRAM_POS_LEVEL_BRIGHTNESS;
- lcmos &= (tp_features.bright_16levels)? 0x0f : 0x07;
- level = lcmos;
- }
-
- if (brightness_mode == 3 && lec != lcmos) {
- printk(IBM_ERR
- "CMOS NVRAM (%u) and EC (%u) do not agree "
- "on display brightness level\n",
- (unsigned int) lcmos,
- (unsigned int) lec);
- return -EIO;
- }
-
- return level;
-}
-
-/* May return EINTR which can always be mapped to ERESTARTSYS */
-static int brightness_set(int value)
-{
- int cmos_cmd, inc, i, res;
- int current_value;
-
- if (value > ((tp_features.bright_16levels)? 15 : 7))
- return -EINVAL;
-
- res = mutex_lock_interruptible(&brightness_mutex);
- if (res < 0)
- return res;
-
- current_value = brightness_get(NULL);
- if (current_value < 0) {
- res = current_value;
- goto errout;
- }
-
- cmos_cmd = value > current_value ?
- TP_CMOS_BRIGHTNESS_UP :
- TP_CMOS_BRIGHTNESS_DOWN;
- inc = (value > current_value)? 1 : -1;
-
- res = 0;
- for (i = current_value; i != value; i += inc) {
- if ((brightness_mode & 2) &&
- issue_thinkpad_cmos_command(cmos_cmd)) {
- res = -EIO;
- goto errout;
- }
- if ((brightness_mode & 1) &&
- !acpi_ec_write(brightness_offset, i + inc)) {
- res = -EIO;
- goto errout;;
- }
- }
-
-errout:
- mutex_unlock(&brightness_mutex);
- return res;
-}
-
static int brightness_read(char *p)
{
int len = 0;
int level;
- if ((level = brightness_get(NULL)) < 0) {
+ level = brightness_get(NULL);
+ if (level < 0) {
len += sprintf(p + len, "level:\t\tunreadable\n");
} else {
len += sprintf(p + len, "level:\t\t%d\n", level);
* Volume subdriver
*/
+static int volume_offset = 0x30;
+
static int volume_read(char *p)
{
int len = 0;
} else
return -EINVAL;
- if (new_level != level) { /* mute doesn't change */
- cmos_cmd = new_level > level ? TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN;
+ if (new_level != level) {
+ /* mute doesn't change */
+
+ cmos_cmd = (new_level > level) ?
+ TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN;
inc = new_level > level ? 1 : -1;
if (mute && (issue_thinkpad_cmos_command(cmos_cmd) ||
!acpi_ec_write(volume_offset, i + inc))
return -EIO;
- if (mute && (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) ||
- !acpi_ec_write(volume_offset,
- new_level + mute)))
+ if (mute &&
+ (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) ||
+ !acpi_ec_write(volume_offset, new_level + mute))) {
return -EIO;
+ }
}
- if (new_mute != mute) { /* level doesn't change */
- cmos_cmd = new_mute ? TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP;
+ if (new_mute != mute) {
+ /* level doesn't change */
+
+ cmos_cmd = (new_mute) ?
+ TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP;
if (issue_thinkpad_cmos_command(cmos_cmd) ||
!acpi_ec_write(volume_offset, level + new_mute))
* but the ACPI tables just mention level 7.
*/
+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 */
+
+ TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */
+ TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */
+
+ TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */
+};
+
+enum fan_status_access_mode {
+ TPACPI_FAN_NONE = 0, /* No fan status or control */
+ TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */
+ TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */
+};
+
+enum fan_control_access_mode {
+ TPACPI_FAN_WR_NONE = 0, /* No fan control */
+ TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */
+ TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */
+ TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */
+};
+
+enum fan_control_commands {
+ TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */
+ TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */
+ TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd,
+ * and also watchdog cmd */
+};
+
+static int fan_control_allowed;
+
static enum fan_status_access_mode fan_status_access_mode;
static enum fan_control_access_mode fan_control_access_mode;
static enum fan_control_commands fan_control_commands;
static u8 fan_control_initial_status;
static u8 fan_control_desired_level;
+static int fan_watchdog_maxinterval;
+
+static struct mutex fan_mutex;
static void fan_watchdog_fire(struct work_struct *ignored);
-static int fan_watchdog_maxinterval;
static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire);
-IBM_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */
-IBM_HANDLE(gfan, ec, "GFAN", /* 570 */
+TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */
+TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */
"\\FSPD", /* 600e/x, 770e, 770x */
); /* all others */
-IBM_HANDLE(sfan, ec, "SFAN", /* 570 */
+TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */
"JFNS", /* 770x-JL */
); /* all others */
/*
- * SYSFS fan layout: hwmon compatible (device)
- *
- * pwm*_enable:
- * 0: "disengaged" mode
- * 1: manual mode
- * 2: native EC "auto" mode (recommended, hardware default)
- *
- * pwm*: set speed in manual mode, ignored otherwise.
- * 0 is level 0; 255 is level 7. Intermediate points done with linear
- * interpolation.
- *
- * fan*_input: tachometer reading, RPM
- *
- *
- * SYSFS fan layout: extensions
- *
- * fan_watchdog (driver):
- * fan watchdog interval in seconds, 0 disables (default), max 120
+ * Call with fan_mutex held
*/
-
-/* sysfs fan pwm1_enable ----------------------------------------------- */
-static ssize_t fan_pwm1_enable_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+static void fan_update_desired_level(u8 status)
{
- int res, mode;
- u8 status;
-
- res = fan_get_status_safe(&status);
- if (res)
- return res;
-
- if (unlikely(tp_features.fan_ctrl_status_undef)) {
- if (status != fan_control_initial_status) {
- tp_features.fan_ctrl_status_undef = 0;
- } else {
- /* Return most likely status. In fact, it
- * might be the only possible status */
- status = TP_EC_FAN_AUTO;
- }
+ if ((status &
+ (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) {
+ if (status > 7)
+ fan_control_desired_level = 7;
+ else
+ fan_control_desired_level = status;
}
-
- if (status & TP_EC_FAN_FULLSPEED) {
- mode = 0;
- } else if (status & TP_EC_FAN_AUTO) {
- mode = 2;
- } else
- mode = 1;
-
- return snprintf(buf, PAGE_SIZE, "%d\n", mode);
}
-static ssize_t fan_pwm1_enable_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
+static int fan_get_status(u8 *status)
{
- unsigned long t;
- int res, level;
+ u8 s;
- if (parse_strtoul(buf, 2, &t))
- return -EINVAL;
+ /* TODO:
+ * Add TPACPI_FAN_RD_ACPI_FANS ? */
- switch (t) {
- case 0:
- level = TP_EC_FAN_FULLSPEED;
- break;
- case 1:
- level = TPACPI_FAN_LAST_LEVEL;
- break;
- case 2:
- level = TP_EC_FAN_AUTO;
- break;
- case 3:
- /* reserved for software-controlled auto mode */
- return -ENOSYS;
- default:
- return -EINVAL;
- }
+ switch (fan_status_access_mode) {
+ case TPACPI_FAN_RD_ACPI_GFAN:
+ /* 570, 600e/x, 770e, 770x */
- res = fan_set_level_safe(level);
- if (res == -ENXIO)
- return -EINVAL;
- else if (res < 0)
- return res;
+ if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d")))
+ return -EIO;
- fan_watchdog_reset();
+ if (likely(status))
+ *status = s & 0x07;
- return count;
-}
+ break;
-static struct device_attribute dev_attr_fan_pwm1_enable =
- __ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
- fan_pwm1_enable_show, fan_pwm1_enable_store);
+ case TPACPI_FAN_RD_TPEC:
+ /* all except 570, 600e/x, 770e, 770x */
+ if (unlikely(!acpi_ec_read(fan_status_offset, &s)))
+ return -EIO;
-/* sysfs fan pwm1 ------------------------------------------------------ */
-static ssize_t fan_pwm1_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- int res;
- u8 status;
+ if (likely(status))
+ *status = s;
- res = fan_get_status_safe(&status);
- if (res)
- return res;
+ break;
- if (unlikely(tp_features.fan_ctrl_status_undef)) {
- if (status != fan_control_initial_status) {
- tp_features.fan_ctrl_status_undef = 0;
- } else {
- status = TP_EC_FAN_AUTO;
- }
+ default:
+ return -ENXIO;
}
- if ((status &
- (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0)
- status = fan_control_desired_level;
+ return 0;
+}
- if (status > 7)
- status = 7;
+static int fan_get_status_safe(u8 *status)
+{
+ int rc;
+ u8 s;
- return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7);
+ if (mutex_lock_interruptible(&fan_mutex))
+ return -ERESTARTSYS;
+ rc = fan_get_status(&s);
+ if (!rc)
+ fan_update_desired_level(s);
+ mutex_unlock(&fan_mutex);
+
+ if (status)
+ *status = s;
+
+ return rc;
}
-static ssize_t fan_pwm1_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
+static int fan_get_speed(unsigned int *speed)
{
- unsigned long s;
- int rc;
- u8 status, newlevel;
+ u8 hi, lo;
- if (parse_strtoul(buf, 255, &s))
- return -EINVAL;
+ switch (fan_status_access_mode) {
+ case TPACPI_FAN_RD_TPEC:
+ /* all except 570, 600e/x, 770e, 770x */
+ if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) ||
+ !acpi_ec_read(fan_rpm_offset + 1, &hi)))
+ return -EIO;
- /* scale down from 0-255 to 0-7 */
- newlevel = (s >> 5) & 0x07;
+ if (likely(speed))
+ *speed = (hi << 8) | lo;
- if (mutex_lock_interruptible(&fan_mutex))
- return -ERESTARTSYS;
+ break;
- rc = fan_get_status(&status);
- if (!rc && (status &
- (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) {
- rc = fan_set_level(newlevel);
- if (rc == -ENXIO)
- rc = -EINVAL;
- else if (!rc) {
- fan_update_desired_level(newlevel);
- fan_watchdog_reset();
- }
+ default:
+ return -ENXIO;
}
- mutex_unlock(&fan_mutex);
- return (rc)? rc : count;
+ return 0;
}
-static struct device_attribute dev_attr_fan_pwm1 =
- __ATTR(pwm1, S_IWUSR | S_IRUGO,
- fan_pwm1_show, fan_pwm1_store);
-
-/* sysfs fan fan1_input ------------------------------------------------ */
-static ssize_t fan_fan1_input_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+static int fan_set_level(int level)
{
- int res;
- unsigned int speed;
+ if (!fan_control_allowed)
+ return -EPERM;
- res = fan_get_speed(&speed);
- if (res < 0)
- return res;
+ switch (fan_control_access_mode) {
+ case TPACPI_FAN_WR_ACPI_SFAN:
+ if (level >= 0 && level <= 7) {
+ if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level))
+ return -EIO;
+ } else
+ return -EINVAL;
+ break;
- return snprintf(buf, PAGE_SIZE, "%u\n", speed);
-}
+ case TPACPI_FAN_WR_ACPI_FANS:
+ case TPACPI_FAN_WR_TPEC:
+ if ((level != TP_EC_FAN_AUTO) &&
+ (level != TP_EC_FAN_FULLSPEED) &&
+ ((level < 0) || (level > 7)))
+ return -EINVAL;
-static struct device_attribute dev_attr_fan_fan1_input =
- __ATTR(fan1_input, S_IRUGO,
- fan_fan1_input_show, NULL);
+ /* safety net should the EC not support AUTO
+ * or FULLSPEED mode bits and just ignore them */
+ if (level & TP_EC_FAN_FULLSPEED)
+ level |= 7; /* safety min speed 7 */
+ else if (level & TP_EC_FAN_AUTO)
+ level |= 4; /* safety min speed 4 */
-/* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */
-static ssize_t fan_fan_watchdog_show(struct device_driver *drv,
- char *buf)
-{
- return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval);
+ if (!acpi_ec_write(fan_status_offset, level))
+ return -EIO;
+ else
+ tp_features.fan_ctrl_status_undef = 0;
+ break;
+
+ default:
+ return -ENXIO;
+ }
+ return 0;
}
-static ssize_t fan_fan_watchdog_store(struct device_driver *drv,
- const char *buf, size_t count)
+static int fan_set_level_safe(int level)
{
- unsigned long t;
-
- if (parse_strtoul(buf, 120, &t))
- return -EINVAL;
+ int rc;
if (!fan_control_allowed)
return -EPERM;
- fan_watchdog_maxinterval = t;
- fan_watchdog_reset();
-
- return count;
-}
+ if (mutex_lock_interruptible(&fan_mutex))
+ return -ERESTARTSYS;
-static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO,
- fan_fan_watchdog_show, fan_fan_watchdog_store);
+ if (level == TPACPI_FAN_LAST_LEVEL)
+ level = fan_control_desired_level;
-/* --------------------------------------------------------------------- */
-static struct attribute *fan_attributes[] = {
- &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr,
- &dev_attr_fan_fan1_input.attr,
- NULL
-};
+ rc = fan_set_level(level);
+ if (!rc)
+ fan_update_desired_level(level);
-static const struct attribute_group fan_attr_group = {
- .attrs = fan_attributes,
-};
+ mutex_unlock(&fan_mutex);
+ return rc;
+}
-static int __init fan_init(struct ibm_init_struct *iibm)
+static int fan_set_enable(void)
{
+ u8 s;
int rc;
- vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n");
+ if (!fan_control_allowed)
+ return -EPERM;
- mutex_init(&fan_mutex);
- fan_status_access_mode = TPACPI_FAN_NONE;
- fan_control_access_mode = TPACPI_FAN_WR_NONE;
- fan_control_commands = 0;
- fan_watchdog_maxinterval = 0;
- tp_features.fan_ctrl_status_undef = 0;
- fan_control_desired_level = 7;
+ if (mutex_lock_interruptible(&fan_mutex))
+ return -ERESTARTSYS;
- IBM_ACPIHANDLE_INIT(fans);
- IBM_ACPIHANDLE_INIT(gfan);
- IBM_ACPIHANDLE_INIT(sfan);
+ switch (fan_control_access_mode) {
+ case TPACPI_FAN_WR_ACPI_FANS:
+ case TPACPI_FAN_WR_TPEC:
+ rc = fan_get_status(&s);
+ if (rc < 0)
+ break;
- if (gfan_handle) {
- /* 570, 600e/x, 770e, 770x */
- fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN;
- } else {
- /* all other ThinkPads: note that even old-style
- * ThinkPad ECs supports the fan control register */
- if (likely(acpi_ec_read(fan_status_offset,
- &fan_control_initial_status))) {
- fan_status_access_mode = TPACPI_FAN_RD_TPEC;
+ /* Don't go out of emergency fan mode */
+ if (s != 7) {
+ s &= 0x07;
+ s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */
+ }
- /* In some ThinkPads, neither the EC nor the ACPI
- * DSDT initialize the fan status, and it ends up
- * being set to 0x07 when it *could* be either
- * 0x07 or 0x80.
- *
- * Enable for TP-1Y (T43), TP-78 (R51e),
- * TP-76 (R52), TP-70 (T43, R52), which are known
- * to be buggy. */
- if (fan_control_initial_status == 0x07) {
- switch (thinkpad_id.ec_model) {
- case 0x5931: /* TP-1Y */
- case 0x3837: /* TP-78 */
- case 0x3637: /* TP-76 */
- case 0x3037: /* TP-70 */
- printk(IBM_NOTICE
- "fan_init: initial fan status is "
- "unknown, assuming it is in auto "
- "mode\n");
- tp_features.fan_ctrl_status_undef = 1;
- ;;
- }
- }
- } else {
- printk(IBM_ERR
- "ThinkPad ACPI EC access misbehaving, "
- "fan status and control unavailable\n");
- return 1;
- }
- }
-
- if (sfan_handle) {
- /* 570, 770x-JL */
- fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN;
- fan_control_commands |=
- TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE;
- } else {
- if (!gfan_handle) {
- /* gfan without sfan means no fan control */
- /* all other models implement TP EC 0x2f control */
-
- if (fans_handle) {
- /* X31, X40, X41 */
- fan_control_access_mode =
- TPACPI_FAN_WR_ACPI_FANS;
- fan_control_commands |=
- TPACPI_FAN_CMD_SPEED |
- TPACPI_FAN_CMD_LEVEL |
- TPACPI_FAN_CMD_ENABLE;
- } else {
- fan_control_access_mode = TPACPI_FAN_WR_TPEC;
- fan_control_commands |=
- TPACPI_FAN_CMD_LEVEL |
- TPACPI_FAN_CMD_ENABLE;
- }
+ if (!acpi_ec_write(fan_status_offset, s))
+ rc = -EIO;
+ else {
+ tp_features.fan_ctrl_status_undef = 0;
+ rc = 0;
}
- }
-
- vdbg_printk(TPACPI_DBG_INIT, "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);
-
- /* fan control master switch */
- if (!fan_control_allowed) {
- fan_control_access_mode = TPACPI_FAN_WR_NONE;
- fan_control_commands = 0;
- dbg_printk(TPACPI_DBG_INIT,
- "fan control features disabled by parameter\n");
- }
-
- /* update fan_control_desired_level */
- if (fan_status_access_mode != TPACPI_FAN_NONE)
- fan_get_status_safe(NULL);
+ break;
- if (fan_status_access_mode != TPACPI_FAN_NONE ||
- fan_control_access_mode != TPACPI_FAN_WR_NONE) {
- rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj,
- &fan_attr_group);
- if (!(rc < 0))
- rc = driver_create_file(&tpacpi_hwmon_pdriver.driver,
- &driver_attr_fan_watchdog);
+ case TPACPI_FAN_WR_ACPI_SFAN:
+ rc = fan_get_status(&s);
if (rc < 0)
- return rc;
- return 0;
- } else
- return 1;
-}
-
-/*
- * Call with fan_mutex held
- */
-static void fan_update_desired_level(u8 status)
-{
- if ((status &
- (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) {
- if (status > 7)
- fan_control_desired_level = 7;
- else
- fan_control_desired_level = status;
- }
-}
-
-static int fan_get_status(u8 *status)
-{
- u8 s;
-
- /* TODO:
- * Add TPACPI_FAN_RD_ACPI_FANS ? */
-
- switch (fan_status_access_mode) {
- case TPACPI_FAN_RD_ACPI_GFAN:
- /* 570, 600e/x, 770e, 770x */
-
- if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d")))
- return -EIO;
-
- if (likely(status))
- *status = s & 0x07;
-
- break;
+ break;
- case TPACPI_FAN_RD_TPEC:
- /* all except 570, 600e/x, 770e, 770x */
- if (unlikely(!acpi_ec_read(fan_status_offset, &s)))
- return -EIO;
+ s &= 0x07;
- if (likely(status))
- *status = s;
+ /* Set fan to at least level 4 */
+ s |= 4;
+ if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s))
+ rc = -EIO;
+ else
+ rc = 0;
break;
default:
- return -ENXIO;
+ rc = -ENXIO;
}
- return 0;
+ mutex_unlock(&fan_mutex);
+ return rc;
}
-static int fan_get_status_safe(u8 *status)
+static int fan_set_disable(void)
{
int rc;
- u8 s;
+
+ if (!fan_control_allowed)
+ return -EPERM;
if (mutex_lock_interruptible(&fan_mutex))
return -ERESTARTSYS;
- rc = fan_get_status(&s);
- if (!rc)
- fan_update_desired_level(s);
- mutex_unlock(&fan_mutex);
- if (status)
- *status = s;
+ rc = 0;
+ switch (fan_control_access_mode) {
+ case TPACPI_FAN_WR_ACPI_FANS:
+ case TPACPI_FAN_WR_TPEC:
+ if (!acpi_ec_write(fan_status_offset, 0x00))
+ rc = -EIO;
+ else {
+ fan_control_desired_level = 0;
+ tp_features.fan_ctrl_status_undef = 0;
+ }
+ break;
- return rc;
-}
+ case TPACPI_FAN_WR_ACPI_SFAN:
+ if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00))
+ rc = -EIO;
+ else
+ fan_control_desired_level = 0;
+ break;
-static void fan_exit(void)
-{
- vdbg_printk(TPACPI_DBG_EXIT, "cancelling any pending fan watchdog tasks\n");
+ default:
+ rc = -ENXIO;
+ }
- /* FIXME: can we really do this unconditionally? */
- 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();
+ mutex_unlock(&fan_mutex);
+ return rc;
}
-static int fan_get_speed(unsigned int *speed)
+static int fan_set_speed(int speed)
{
- u8 hi, lo;
+ int rc;
- switch (fan_status_access_mode) {
- case TPACPI_FAN_RD_TPEC:
- /* all except 570, 600e/x, 770e, 770x */
- if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) ||
- !acpi_ec_read(fan_rpm_offset + 1, &hi)))
- return -EIO;
+ if (!fan_control_allowed)
+ return -EPERM;
- if (likely(speed))
- *speed = (hi << 8) | lo;
+ if (mutex_lock_interruptible(&fan_mutex))
+ return -ERESTARTSYS;
+ rc = 0;
+ switch (fan_control_access_mode) {
+ case TPACPI_FAN_WR_ACPI_FANS:
+ if (speed >= 0 && speed <= 65535) {
+ if (!acpi_evalf(fans_handle, NULL, NULL, "vddd",
+ speed, speed, speed))
+ rc = -EIO;
+ } else
+ rc = -EINVAL;
break;
default:
- return -ENXIO;
+ rc = -ENXIO;
}
- return 0;
-}
-
-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) {
- printk(IBM_ERR "fan watchdog: error %d while enabling fan, "
- "will try again later...\n", -rc);
- /* reschedule for later */
- fan_watchdog_reset();
- }
+ mutex_unlock(&fan_mutex);
+ return rc;
}
static void fan_watchdog_reset(void)
if (!schedule_delayed_work(&fan_watchdog_task,
msecs_to_jiffies(fan_watchdog_maxinterval
* 1000))) {
- printk(IBM_ERR "failed to schedule the fan watchdog, "
+ printk(TPACPI_ERR
+ "failed to schedule the fan watchdog, "
"watchdog will not trigger\n");
}
} else
fan_watchdog_active = 0;
}
-static int fan_set_level(int level)
+static void fan_watchdog_fire(struct work_struct *ignored)
{
- if (!fan_control_allowed)
- return -EPERM;
-
- switch (fan_control_access_mode) {
- case TPACPI_FAN_WR_ACPI_SFAN:
- if (level >= 0 && level <= 7) {
- if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level))
- return -EIO;
- } else
- return -EINVAL;
- break;
+ int rc;
- case TPACPI_FAN_WR_ACPI_FANS:
- case TPACPI_FAN_WR_TPEC:
- if ((level != TP_EC_FAN_AUTO) &&
- (level != TP_EC_FAN_FULLSPEED) &&
- ((level < 0) || (level > 7)))
- return -EINVAL;
+ if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING)
+ return;
- /* safety net should the EC not support AUTO
- * or FULLSPEED mode bits and just ignore them */
- if (level & TP_EC_FAN_FULLSPEED)
- level |= 7; /* safety min speed 7 */
- else if (level & TP_EC_FAN_FULLSPEED)
- level |= 4; /* safety min speed 4 */
+ printk(TPACPI_NOTICE "fan watchdog: enabling fan\n");
+ rc = fan_set_enable();
+ if (rc < 0) {
+ printk(TPACPI_ERR "fan watchdog: error %d while enabling fan, "
+ "will try again later...\n", -rc);
+ /* reschedule for later */
+ fan_watchdog_reset();
+ }
+}
- if (!acpi_ec_write(fan_status_offset, level))
- return -EIO;
- else
+/*
+ * SYSFS fan layout: hwmon compatible (device)
+ *
+ * pwm*_enable:
+ * 0: "disengaged" mode
+ * 1: manual mode
+ * 2: native EC "auto" mode (recommended, hardware default)
+ *
+ * pwm*: set speed in manual mode, ignored otherwise.
+ * 0 is level 0; 255 is level 7. Intermediate points done with linear
+ * interpolation.
+ *
+ * fan*_input: tachometer reading, RPM
+ *
+ *
+ * SYSFS fan layout: extensions
+ *
+ * fan_watchdog (driver):
+ * fan watchdog interval in seconds, 0 disables (default), max 120
+ */
+
+/* sysfs fan pwm1_enable ----------------------------------------------- */
+static ssize_t fan_pwm1_enable_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ int res, mode;
+ u8 status;
+
+ res = fan_get_status_safe(&status);
+ if (res)
+ return res;
+
+ if (unlikely(tp_features.fan_ctrl_status_undef)) {
+ if (status != fan_control_initial_status) {
tp_features.fan_ctrl_status_undef = 0;
- break;
+ } else {
+ /* Return most likely status. In fact, it
+ * might be the only possible status */
+ status = TP_EC_FAN_AUTO;
+ }
+ }
+ if (status & TP_EC_FAN_FULLSPEED) {
+ mode = 0;
+ } else if (status & TP_EC_FAN_AUTO) {
+ mode = 2;
+ } else
+ mode = 1;
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", mode);
+}
+
+static ssize_t fan_pwm1_enable_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ unsigned long t;
+ int res, level;
+
+ if (parse_strtoul(buf, 2, &t))
+ return -EINVAL;
+
+ switch (t) {
+ case 0:
+ level = TP_EC_FAN_FULLSPEED;
+ break;
+ case 1:
+ level = TPACPI_FAN_LAST_LEVEL;
+ break;
+ case 2:
+ level = TP_EC_FAN_AUTO;
+ break;
+ case 3:
+ /* reserved for software-controlled auto mode */
+ return -ENOSYS;
default:
- return -ENXIO;
+ return -EINVAL;
}
- return 0;
+
+ res = fan_set_level_safe(level);
+ if (res == -ENXIO)
+ return -EINVAL;
+ else if (res < 0)
+ return res;
+
+ fan_watchdog_reset();
+
+ return count;
}
-static int fan_set_level_safe(int level)
+static struct device_attribute dev_attr_fan_pwm1_enable =
+ __ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
+ fan_pwm1_enable_show, fan_pwm1_enable_store);
+
+/* sysfs fan pwm1 ------------------------------------------------------ */
+static ssize_t fan_pwm1_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
{
- int rc;
+ int res;
+ u8 status;
- if (!fan_control_allowed)
- return -EPERM;
+ res = fan_get_status_safe(&status);
+ if (res)
+ return res;
- if (mutex_lock_interruptible(&fan_mutex))
- return -ERESTARTSYS;
+ if (unlikely(tp_features.fan_ctrl_status_undef)) {
+ if (status != fan_control_initial_status) {
+ tp_features.fan_ctrl_status_undef = 0;
+ } else {
+ status = TP_EC_FAN_AUTO;
+ }
+ }
- if (level == TPACPI_FAN_LAST_LEVEL)
- level = fan_control_desired_level;
+ if ((status &
+ (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0)
+ status = fan_control_desired_level;
- rc = fan_set_level(level);
- if (!rc)
- fan_update_desired_level(level);
+ if (status > 7)
+ status = 7;
- mutex_unlock(&fan_mutex);
- return rc;
+ return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7);
}
-static int fan_set_enable(void)
+static ssize_t fan_pwm1_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
{
- u8 s;
+ unsigned long s;
int rc;
+ u8 status, newlevel;
- if (!fan_control_allowed)
- return -EPERM;
+ if (parse_strtoul(buf, 255, &s))
+ return -EINVAL;
+
+ /* scale down from 0-255 to 0-7 */
+ newlevel = (s >> 5) & 0x07;
if (mutex_lock_interruptible(&fan_mutex))
return -ERESTARTSYS;
- switch (fan_control_access_mode) {
- case TPACPI_FAN_WR_ACPI_FANS:
- case TPACPI_FAN_WR_TPEC:
- rc = fan_get_status(&s);
- if (rc < 0)
- break;
-
- /* Don't go out of emergency fan mode */
- if (s != 7) {
- s &= 0x07;
- s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */
+ rc = fan_get_status(&status);
+ if (!rc && (status &
+ (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) {
+ rc = fan_set_level(newlevel);
+ if (rc == -ENXIO)
+ rc = -EINVAL;
+ else if (!rc) {
+ fan_update_desired_level(newlevel);
+ fan_watchdog_reset();
}
+ }
- if (!acpi_ec_write(fan_status_offset, s))
- rc = -EIO;
- else {
- tp_features.fan_ctrl_status_undef = 0;
- rc = 0;
- }
- break;
+ mutex_unlock(&fan_mutex);
+ return (rc)? rc : count;
+}
- case TPACPI_FAN_WR_ACPI_SFAN:
- rc = fan_get_status(&s);
- if (rc < 0)
- break;
+static struct device_attribute dev_attr_fan_pwm1 =
+ __ATTR(pwm1, S_IWUSR | S_IRUGO,
+ fan_pwm1_show, fan_pwm1_store);
- s &= 0x07;
+/* sysfs fan fan1_input ------------------------------------------------ */
+static ssize_t fan_fan1_input_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ int res;
+ unsigned int speed;
- /* Set fan to at least level 4 */
- s |= 4;
+ res = fan_get_speed(&speed);
+ if (res < 0)
+ return res;
- if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s))
- rc= -EIO;
- else
- rc = 0;
- break;
+ return snprintf(buf, PAGE_SIZE, "%u\n", speed);
+}
- default:
- rc = -ENXIO;
- }
+static struct device_attribute dev_attr_fan_fan1_input =
+ __ATTR(fan1_input, S_IRUGO,
+ fan_fan1_input_show, NULL);
- mutex_unlock(&fan_mutex);
- return rc;
+/* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */
+static ssize_t fan_fan_watchdog_show(struct device_driver *drv,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval);
}
-static int fan_set_disable(void)
+static ssize_t fan_fan_watchdog_store(struct device_driver *drv,
+ const char *buf, size_t count)
{
- int rc;
+ unsigned long t;
+
+ if (parse_strtoul(buf, 120, &t))
+ return -EINVAL;
if (!fan_control_allowed)
return -EPERM;
- if (mutex_lock_interruptible(&fan_mutex))
- return -ERESTARTSYS;
+ fan_watchdog_maxinterval = t;
+ fan_watchdog_reset();
- rc = 0;
- switch (fan_control_access_mode) {
- case TPACPI_FAN_WR_ACPI_FANS:
- case TPACPI_FAN_WR_TPEC:
- if (!acpi_ec_write(fan_status_offset, 0x00))
- rc = -EIO;
- else {
- fan_control_desired_level = 0;
- tp_features.fan_ctrl_status_undef = 0;
+ return count;
+}
+
+static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO,
+ fan_fan_watchdog_show, fan_fan_watchdog_store);
+
+/* --------------------------------------------------------------------- */
+static struct attribute *fan_attributes[] = {
+ &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr,
+ &dev_attr_fan_fan1_input.attr,
+ NULL
+};
+
+static const struct attribute_group fan_attr_group = {
+ .attrs = fan_attributes,
+};
+
+static int __init fan_init(struct ibm_init_struct *iibm)
+{
+ int rc;
+
+ vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n");
+
+ mutex_init(&fan_mutex);
+ fan_status_access_mode = TPACPI_FAN_NONE;
+ fan_control_access_mode = TPACPI_FAN_WR_NONE;
+ fan_control_commands = 0;
+ fan_watchdog_maxinterval = 0;
+ tp_features.fan_ctrl_status_undef = 0;
+ fan_control_desired_level = 7;
+
+ TPACPI_ACPIHANDLE_INIT(fans);
+ TPACPI_ACPIHANDLE_INIT(gfan);
+ TPACPI_ACPIHANDLE_INIT(sfan);
+
+ if (gfan_handle) {
+ /* 570, 600e/x, 770e, 770x */
+ fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN;
+ } else {
+ /* all other ThinkPads: note that even old-style
+ * ThinkPad ECs supports the fan control register */
+ if (likely(acpi_ec_read(fan_status_offset,
+ &fan_control_initial_status))) {
+ fan_status_access_mode = TPACPI_FAN_RD_TPEC;
+
+ /* In some ThinkPads, neither the EC nor the ACPI
+ * DSDT initialize the fan status, and it ends up
+ * being set to 0x07 when it *could* be either
+ * 0x07 or 0x80.
+ *
+ * Enable for TP-1Y (T43), TP-78 (R51e),
+ * TP-76 (R52), TP-70 (T43, R52), which are known
+ * to be buggy. */
+ if (fan_control_initial_status == 0x07) {
+ switch (thinkpad_id.ec_model) {
+ case 0x5931: /* TP-1Y */
+ case 0x3837: /* TP-78 */
+ case 0x3637: /* TP-76 */
+ case 0x3037: /* TP-70 */
+ printk(TPACPI_NOTICE
+ "fan_init: initial fan status "
+ "is unknown, assuming it is "
+ "in auto mode\n");
+ tp_features.fan_ctrl_status_undef = 1;
+ ;;
+ }
+ }
+ } else {
+ printk(TPACPI_ERR
+ "ThinkPad ACPI EC access misbehaving, "
+ "fan status and control unavailable\n");
+ return 1;
}
- break;
+ }
- case TPACPI_FAN_WR_ACPI_SFAN:
- if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00))
- rc = -EIO;
- else
- fan_control_desired_level = 0;
- break;
+ if (sfan_handle) {
+ /* 570, 770x-JL */
+ fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN;
+ fan_control_commands |=
+ TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE;
+ } else {
+ if (!gfan_handle) {
+ /* gfan without sfan means no fan control */
+ /* all other models implement TP EC 0x2f control */
- default:
- rc = -ENXIO;
+ if (fans_handle) {
+ /* X31, X40, X41 */
+ fan_control_access_mode =
+ TPACPI_FAN_WR_ACPI_FANS;
+ fan_control_commands |=
+ TPACPI_FAN_CMD_SPEED |
+ TPACPI_FAN_CMD_LEVEL |
+ TPACPI_FAN_CMD_ENABLE;
+ } else {
+ fan_control_access_mode = TPACPI_FAN_WR_TPEC;
+ fan_control_commands |=
+ TPACPI_FAN_CMD_LEVEL |
+ TPACPI_FAN_CMD_ENABLE;
+ }
+ }
+ }
+
+ vdbg_printk(TPACPI_DBG_INIT, "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);
+
+ /* fan control master switch */
+ if (!fan_control_allowed) {
+ fan_control_access_mode = TPACPI_FAN_WR_NONE;
+ fan_control_commands = 0;
+ dbg_printk(TPACPI_DBG_INIT,
+ "fan control features disabled by parameter\n");
}
+ /* update fan_control_desired_level */
+ if (fan_status_access_mode != TPACPI_FAN_NONE)
+ fan_get_status_safe(NULL);
- mutex_unlock(&fan_mutex);
- return rc;
+ if (fan_status_access_mode != TPACPI_FAN_NONE ||
+ fan_control_access_mode != TPACPI_FAN_WR_NONE) {
+ rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj,
+ &fan_attr_group);
+ if (!(rc < 0))
+ rc = driver_create_file(&tpacpi_hwmon_pdriver.driver,
+ &driver_attr_fan_watchdog);
+ if (rc < 0)
+ return rc;
+ return 0;
+ } else
+ return 1;
}
-static int fan_set_speed(int speed)
+static void fan_exit(void)
{
- int rc;
-
- if (!fan_control_allowed)
- return -EPERM;
-
- if (mutex_lock_interruptible(&fan_mutex))
- return -ERESTARTSYS;
-
- rc = 0;
- switch (fan_control_access_mode) {
- case TPACPI_FAN_WR_ACPI_FANS:
- if (speed >= 0 && speed <= 65535) {
- if (!acpi_evalf(fans_handle, NULL, NULL, "vddd",
- speed, speed, speed))
- rc = -EIO;
- } else
- rc = -EINVAL;
- break;
+ vdbg_printk(TPACPI_DBG_EXIT,
+ "cancelling any pending fan watchdog tasks\n");
- default:
- rc = -ENXIO;
- }
+ /* FIXME: can we really do this unconditionally? */
+ sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group);
+ driver_remove_file(&tpacpi_hwmon_pdriver.driver,
+ &driver_attr_fan_watchdog);
- mutex_unlock(&fan_mutex);
- return rc;
+ cancel_delayed_work(&fan_watchdog_task);
+ flush_scheduled_work();
}
static int fan_read(char *p)
switch (fan_status_access_mode) {
case TPACPI_FAN_RD_ACPI_GFAN:
/* 570, 600e/x, 770e, 770x */
- if ((rc = fan_get_status_safe(&status)) < 0)
+ rc = fan_get_status_safe(&status);
+ if (rc < 0)
return rc;
len += sprintf(p + len, "status:\t\t%s\n"
case TPACPI_FAN_RD_TPEC:
/* all except 570, 600e/x, 770e, 770x */
- if ((rc = fan_get_status_safe(&status)) < 0)
+ rc = fan_get_status_safe(&status);
+ if (rc < 0)
return rc;
if (unlikely(tp_features.fan_ctrl_status_undef)) {
len += sprintf(p + len, "status:\t\t%s\n",
(status != 0) ? "enabled" : "disabled");
- if ((rc = fan_get_speed(&speed)) < 0)
+ rc = fan_get_speed(&speed);
+ if (rc < 0)
return rc;
len += sprintf(p + len, "speed:\t\t%d\n", speed);
if (fan_control_commands & TPACPI_FAN_CMD_ENABLE)
len += sprintf(p + len, "commands:\tenable, disable\n"
- "commands:\twatchdog <timeout> (<timeout> is 0 (off), "
- "1-120 (seconds))\n");
+ "commands:\twatchdog <timeout> (<timeout> "
+ "is 0 (off), 1-120 (seconds))\n");
if (fan_control_commands & TPACPI_FAN_CMD_SPEED)
len += sprintf(p + len, "commands:\tspeed <speed>"
if (strlencmp(cmd, "level auto") == 0)
level = TP_EC_FAN_AUTO;
else if ((strlencmp(cmd, "level disengaged") == 0) |
- (strlencmp(cmd, "level full-speed") == 0))
+ (strlencmp(cmd, "level full-speed") == 0))
level = TP_EC_FAN_FULLSPEED;
else if (sscanf(cmd, "level %d", &level) != 1)
return 0;
- if ((*rc = fan_set_level_safe(level)) == -ENXIO)
- printk(IBM_ERR "level command accepted for unsupported "
+ *rc = fan_set_level_safe(level);
+ if (*rc == -ENXIO)
+ printk(TPACPI_ERR "level command accepted for unsupported "
"access mode %d", fan_control_access_mode);
return 1;
if (strlencmp(cmd, "enable") != 0)
return 0;
- if ((*rc = fan_set_enable()) == -ENXIO)
- printk(IBM_ERR "enable command accepted for unsupported "
+ *rc = fan_set_enable();
+ if (*rc == -ENXIO)
+ printk(TPACPI_ERR "enable command accepted for unsupported "
"access mode %d", fan_control_access_mode);
return 1;
if (strlencmp(cmd, "disable") != 0)
return 0;
- if ((*rc = fan_set_disable()) == -ENXIO)
- printk(IBM_ERR "disable command accepted for unsupported "
+ *rc = fan_set_disable();
+ if (*rc == -ENXIO)
+ printk(TPACPI_ERR "disable command accepted for unsupported "
"access mode %d", fan_control_access_mode);
return 1;
if (sscanf(cmd, "speed %d", &speed) != 1)
return 0;
- if ((*rc = fan_set_speed(speed)) == -ENXIO)
- printk(IBM_ERR "speed command accepted for unsupported "
+ *rc = fan_set_speed(speed);
+ if (*rc == -ENXIO)
+ printk(TPACPI_ERR "speed command accepted for unsupported "
"access mode %d", fan_control_access_mode);
return 1;
struct device_attribute *attr,
char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%s\n", IBM_NAME);
+ return snprintf(buf, PAGE_SIZE, "%s\n", TPACPI_NAME);
}
static struct device_attribute dev_attr_thinkpad_acpi_pdev_name =
/* /proc support */
static struct proc_dir_entry *proc_dir;
-/* Subdriver registry */
-static LIST_HEAD(tpacpi_all_drivers);
-
-
/*
* Module and infrastructure proble, init and exit handling
*/
+static int force_load;
+
#ifdef CONFIG_THINKPAD_ACPI_DEBUG
static const char * __init str_supported(int is_supported)
{
}
#endif /* CONFIG_THINKPAD_ACPI_DEBUG */
+static void ibm_exit(struct ibm_struct *ibm)
+{
+ dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name);
+
+ list_del_init(&ibm->all_drivers);
+
+ if (ibm->flags.acpi_notify_installed) {
+ dbg_printk(TPACPI_DBG_EXIT,
+ "%s: acpi_remove_notify_handler\n", ibm->name);
+ BUG_ON(!ibm->acpi);
+ acpi_remove_notify_handler(*ibm->acpi->handle,
+ ibm->acpi->type,
+ dispatch_acpi_notify);
+ ibm->flags.acpi_notify_installed = 0;
+ ibm->flags.acpi_notify_installed = 0;
+ }
+
+ if (ibm->flags.proc_created) {
+ dbg_printk(TPACPI_DBG_EXIT,
+ "%s: remove_proc_entry\n", ibm->name);
+ remove_proc_entry(ibm->name, proc_dir);
+ ibm->flags.proc_created = 0;
+ }
+
+ if (ibm->flags.acpi_driver_registered) {
+ dbg_printk(TPACPI_DBG_EXIT,
+ "%s: acpi_bus_unregister_driver\n", ibm->name);
+ BUG_ON(!ibm->acpi);
+ acpi_bus_unregister_driver(ibm->acpi->driver);
+ kfree(ibm->acpi->driver);
+ ibm->acpi->driver = NULL;
+ ibm->flags.acpi_driver_registered = 0;
+ }
+
+ if (ibm->flags.init_called && ibm->exit) {
+ ibm->exit();
+ ibm->flags.init_called = 0;
+ }
+
+ dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name);
+}
+
static int __init ibm_init(struct ibm_init_struct *iibm)
{
int ret;
if (ibm->acpi->notify) {
ret = setup_acpi_notify(ibm);
if (ret == -ENODEV) {
- printk(IBM_NOTICE "disabling subdriver %s\n",
+ printk(TPACPI_NOTICE "disabling subdriver %s\n",
ibm->name);
ret = 0;
goto err_out;
S_IFREG | S_IRUGO | S_IWUSR,
proc_dir);
if (!entry) {
- printk(IBM_ERR "unable to create proc entry %s\n",
+ printk(TPACPI_ERR "unable to create proc entry %s\n",
ibm->name);
ret = -ENODEV;
goto err_out;
return (ret < 0)? ret : 0;
}
-static void ibm_exit(struct ibm_struct *ibm)
-{
- dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name);
-
- list_del_init(&ibm->all_drivers);
-
- if (ibm->flags.acpi_notify_installed) {
- dbg_printk(TPACPI_DBG_EXIT,
- "%s: acpi_remove_notify_handler\n", ibm->name);
- BUG_ON(!ibm->acpi);
- acpi_remove_notify_handler(*ibm->acpi->handle,
- ibm->acpi->type,
- dispatch_acpi_notify);
- ibm->flags.acpi_notify_installed = 0;
- ibm->flags.acpi_notify_installed = 0;
- }
-
- if (ibm->flags.proc_created) {
- dbg_printk(TPACPI_DBG_EXIT,
- "%s: remove_proc_entry\n", ibm->name);
- remove_proc_entry(ibm->name, proc_dir);
- ibm->flags.proc_created = 0;
- }
-
- if (ibm->flags.acpi_driver_registered) {
- dbg_printk(TPACPI_DBG_EXIT,
- "%s: acpi_bus_unregister_driver\n", ibm->name);
- BUG_ON(!ibm->acpi);
- acpi_bus_unregister_driver(ibm->acpi->driver);
- kfree(ibm->acpi->driver);
- ibm->acpi->driver = NULL;
- ibm->flags.acpi_driver_registered = 0;
- }
-
- if (ibm->flags.init_called && ibm->exit) {
- ibm->exit();
- ibm->flags.init_called = 0;
- }
-
- dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name);
-}
-
/* Probing */
static void __init get_thinkpad_model_data(struct thinkpad_id_data *tp)
is_thinkpad = (thinkpad_id.model_str != NULL);
/* ec is required because many other handles are relative to it */
- IBM_ACPIHANDLE_INIT(ec);
+ TPACPI_ACPIHANDLE_INIT(ec);
if (!ec_handle) {
if (is_thinkpad)
- printk(IBM_ERR
+ printk(TPACPI_ERR
"Not yet supported ThinkPad detected!\n");
return -ENODEV;
}
return -EINVAL;
}
-static int experimental;
module_param(experimental, int, 0);
+MODULE_PARM_DESC(experimental,
+ "Enables experimental features when non-zero");
-static u32 dbg_level;
module_param_named(debug, dbg_level, uint, 0);
+MODULE_PARM_DESC(debug, "Sets debug level bit-mask");
-static int force_load;
module_param(force_load, bool, 0);
+MODULE_PARM_DESC(force_load,
+ "Attempts to load the driver even on a "
+ "mis-identified ThinkPad when true");
-static int fan_control_allowed;
module_param_named(fan_control, fan_control_allowed, bool, 0);
+MODULE_PARM_DESC(fan_control,
+ "Enables setting fan parameters features when true");
-static int brightness_mode;
module_param_named(brightness_mode, brightness_mode, int, 0);
+MODULE_PARM_DESC(brightness_mode,
+ "Selects brightness control strategy: "
+ "0=auto, 1=EC, 2=CMOS, 3=both");
-static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */
module_param(brightness_enable, uint, 0);
+MODULE_PARM_DESC(brightness_enable,
+ "Enables backlight control when 1, disables when 0");
-static unsigned int hotkey_report_mode;
module_param(hotkey_report_mode, uint, 0);
-
-#define IBM_PARAM(feature) \
- module_param_call(feature, set_ibm_param, NULL, NULL, 0)
-
-IBM_PARAM(hotkey);
-IBM_PARAM(bluetooth);
-IBM_PARAM(video);
-IBM_PARAM(light);
+MODULE_PARM_DESC(hotkey_report_mode,
+ "used for backwards compatibility with userspace, "
+ "see documentation");
+
+#define TPACPI_PARAM(feature) \
+ module_param_call(feature, set_ibm_param, NULL, NULL, 0); \
+ MODULE_PARM_DESC(feature, "Simulates thinkpad-aci procfs command " \
+ "at module load, see documentation")
+
+TPACPI_PARAM(hotkey);
+TPACPI_PARAM(bluetooth);
+TPACPI_PARAM(video);
+TPACPI_PARAM(light);
#ifdef CONFIG_THINKPAD_ACPI_DOCK
-IBM_PARAM(dock);
+TPACPI_PARAM(dock);
#endif
#ifdef CONFIG_THINKPAD_ACPI_BAY
-IBM_PARAM(bay);
+TPACPI_PARAM(bay);
#endif /* CONFIG_THINKPAD_ACPI_BAY */
-IBM_PARAM(cmos);
-IBM_PARAM(led);
-IBM_PARAM(beep);
-IBM_PARAM(ecdump);
-IBM_PARAM(brightness);
-IBM_PARAM(volume);
-IBM_PARAM(fan);
+TPACPI_PARAM(cmos);
+TPACPI_PARAM(led);
+TPACPI_PARAM(beep);
+TPACPI_PARAM(ecdump);
+TPACPI_PARAM(brightness);
+TPACPI_PARAM(volume);
+TPACPI_PARAM(fan);
+
+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) {
+ ibm_exit(ibm);
+ }
+
+ dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n");
+
+ if (tpacpi_inputdev) {
+ if (tp_features.input_device_registered)
+ input_unregister_device(tpacpi_inputdev);
+ else
+ input_free_device(tpacpi_inputdev);
+ }
+
+ 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);
+
+ if (proc_dir)
+ remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir);
+
+ kfree(thinkpad_id.bios_version_str);
+ kfree(thinkpad_id.ec_version_str);
+ kfree(thinkpad_id.model_str);
+}
+
static int __init thinkpad_acpi_module_init(void)
{
/* Driver initialization */
- IBM_ACPIHANDLE_INIT(ecrd);
- IBM_ACPIHANDLE_INIT(ecwr);
+ TPACPI_ACPIHANDLE_INIT(ecrd);
+ TPACPI_ACPIHANDLE_INIT(ecwr);
- proc_dir = proc_mkdir(IBM_PROC_DIR, acpi_root_dir);
+ proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir);
if (!proc_dir) {
- printk(IBM_ERR "unable to create proc dir " IBM_PROC_DIR);
+ printk(TPACPI_ERR
+ "unable to create proc dir " TPACPI_PROC_DIR);
thinkpad_acpi_module_exit();
return -ENODEV;
}
ret = platform_driver_register(&tpacpi_pdriver);
if (ret) {
- printk(IBM_ERR "unable to register main platform driver\n");
+ printk(TPACPI_ERR
+ "unable to register main platform driver\n");
thinkpad_acpi_module_exit();
return ret;
}
ret = platform_driver_register(&tpacpi_hwmon_pdriver);
if (ret) {
- printk(IBM_ERR "unable to register hwmon platform driver\n");
+ printk(TPACPI_ERR
+ "unable to register hwmon platform driver\n");
thinkpad_acpi_module_exit();
return ret;
}
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);
+ ret = tpacpi_create_driver_attributes(
+ &tpacpi_hwmon_pdriver.driver);
}
if (ret) {
- printk(IBM_ERR "unable to create sysfs driver attributes\n");
+ printk(TPACPI_ERR
+ "unable to create sysfs driver attributes\n");
thinkpad_acpi_module_exit();
return ret;
}
/* Device initialization */
- tpacpi_pdev = platform_device_register_simple(IBM_DRVR_NAME, -1,
+ tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1,
NULL, 0);
if (IS_ERR(tpacpi_pdev)) {
ret = PTR_ERR(tpacpi_pdev);
tpacpi_pdev = NULL;
- printk(IBM_ERR "unable to register platform device\n");
+ printk(TPACPI_ERR "unable to register platform device\n");
thinkpad_acpi_module_exit();
return ret;
}
tpacpi_sensors_pdev = platform_device_register_simple(
- IBM_HWMON_DRVR_NAME,
- -1, NULL, 0);
+ TPACPI_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");
+ printk(TPACPI_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");
+ printk(TPACPI_ERR
+ "unable to create sysfs hwmon device attributes\n");
thinkpad_acpi_module_exit();
return ret;
}
if (IS_ERR(tpacpi_hwmon)) {
ret = PTR_ERR(tpacpi_hwmon);
tpacpi_hwmon = NULL;
- printk(IBM_ERR "unable to register hwmon device\n");
+ printk(TPACPI_ERR "unable to register hwmon device\n");
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");
+ printk(TPACPI_ERR "unable to allocate input device\n");
thinkpad_acpi_module_exit();
return -ENOMEM;
} else {
/* Prepare input device, but don't register */
tpacpi_inputdev->name = "ThinkPad Extra Buttons";
- tpacpi_inputdev->phys = IBM_DRVR_NAME "/input0";
+ tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0";
tpacpi_inputdev->id.bustype = BUS_HOST;
tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ?
thinkpad_id.vendor :
}
ret = input_register_device(tpacpi_inputdev);
if (ret < 0) {
- printk(IBM_ERR "unable to register input device\n");
+ printk(TPACPI_ERR "unable to register input device\n");
thinkpad_acpi_module_exit();
return ret;
} else {
return 0;
}
-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) {
- ibm_exit(ibm);
- }
-
- dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n");
-
- if (tpacpi_inputdev) {
- if (tp_features.input_device_registered)
- input_unregister_device(tpacpi_inputdev);
- else
- input_free_device(tpacpi_inputdev);
- }
-
- 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);
+/* Please remove this in year 2009 */
+MODULE_ALIAS("ibm_acpi");
- if (tp_features.sensors_pdrv_registered)
- platform_driver_unregister(&tpacpi_hwmon_pdriver);
+/*
+ * DMI matching for module autoloading
+ *
+ * See http://thinkwiki.org/wiki/List_of_DMI_IDs
+ * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads
+ *
+ * Only models listed in thinkwiki will be supported, so add yours
+ * if it is not there yet.
+ */
+#define IBM_BIOS_MODULE_ALIAS(__type) \
+ MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW")
- if (tp_features.platform_drv_registered)
- platform_driver_unregister(&tpacpi_pdriver);
+/* Non-ancient thinkpads */
+MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*");
+MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*");
- if (proc_dir)
- remove_proc_entry(IBM_PROC_DIR, acpi_root_dir);
+/* Ancient thinkpad BIOSes have to be identified by
+ * BIOS type or model number, and there are far less
+ * BIOS types than model numbers... */
+IBM_BIOS_MODULE_ALIAS("I[B,D,H,I,M,N,O,T,W,V,Y,Z]");
+IBM_BIOS_MODULE_ALIAS("1[0,3,6,8,A-G,I,K,M-P,S,T]");
+IBM_BIOS_MODULE_ALIAS("K[U,X-Z]");
- kfree(thinkpad_id.bios_version_str);
- kfree(thinkpad_id.ec_version_str);
- kfree(thinkpad_id.model_str);
-}
+MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh");
+MODULE_DESCRIPTION(TPACPI_DESC);
+MODULE_VERSION(TPACPI_VERSION);
+MODULE_LICENSE("GPL");
module_init(thinkpad_acpi_module_init);
module_exit(thinkpad_acpi_module_exit);
git.samba.org / sfrench / cifs-2.6.git / commitdiff