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-rw-r--r--drivers/platform/x86/Kconfig11
-rw-r--r--drivers/platform/x86/thinkpad_acpi.c910
2 files changed, 769 insertions, 152 deletions
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index e65448e99b48..431772b8a1d0 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -192,6 +192,17 @@ config THINKPAD_ACPI
192 192
193 If you have an IBM or Lenovo ThinkPad laptop, say Y or M here. 193 If you have an IBM or Lenovo ThinkPad laptop, say Y or M here.
194 194
195config THINKPAD_ACPI_DEBUGFACILITIES
196 bool "Maintainer debug facilities"
197 depends on THINKPAD_ACPI
198 default n
199 ---help---
200 Enables extra stuff in the thinkpad-acpi which is completely useless
201 for normal use. Read the driver source to find out what it does.
202
203 Say N here, unless you were told by a kernel maintainer to do
204 otherwise.
205
195config THINKPAD_ACPI_DEBUG 206config THINKPAD_ACPI_DEBUG
196 bool "Verbose debug mode" 207 bool "Verbose debug mode"
197 depends on THINKPAD_ACPI 208 depends on THINKPAD_ACPI
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 3478453eba7a..bcbc05107ba8 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -21,7 +21,7 @@
21 * 02110-1301, USA. 21 * 02110-1301, USA.
22 */ 22 */
23 23
24#define TPACPI_VERSION "0.21" 24#define TPACPI_VERSION "0.22"
25#define TPACPI_SYSFS_VERSION 0x020200 25#define TPACPI_SYSFS_VERSION 0x020200
26 26
27/* 27/*
@@ -122,6 +122,27 @@ enum {
122#define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */ 122#define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */
123#define TPACPI_HKEY_INPUT_VERSION 0x4101 123#define TPACPI_HKEY_INPUT_VERSION 0x4101
124 124
125/* ACPI \WGSV commands */
126enum {
127 TP_ACPI_WGSV_GET_STATE = 0x01, /* Get state information */
128 TP_ACPI_WGSV_PWR_ON_ON_RESUME = 0x02, /* Resume WWAN powered on */
129 TP_ACPI_WGSV_PWR_OFF_ON_RESUME = 0x03, /* Resume WWAN powered off */
130 TP_ACPI_WGSV_SAVE_STATE = 0x04, /* Save state for S4/S5 */
131};
132
133/* TP_ACPI_WGSV_GET_STATE bits */
134enum {
135 TP_ACPI_WGSV_STATE_WWANEXIST = 0x0001, /* WWAN hw available */
136 TP_ACPI_WGSV_STATE_WWANPWR = 0x0002, /* WWAN radio enabled */
137 TP_ACPI_WGSV_STATE_WWANPWRRES = 0x0004, /* WWAN state at resume */
138 TP_ACPI_WGSV_STATE_WWANBIOSOFF = 0x0008, /* WWAN disabled in BIOS */
139 TP_ACPI_WGSV_STATE_BLTHEXIST = 0x0001, /* BLTH hw available */
140 TP_ACPI_WGSV_STATE_BLTHPWR = 0x0002, /* BLTH radio enabled */
141 TP_ACPI_WGSV_STATE_BLTHPWRRES = 0x0004, /* BLTH state at resume */
142 TP_ACPI_WGSV_STATE_BLTHBIOSOFF = 0x0008, /* BLTH disabled in BIOS */
143 TP_ACPI_WGSV_STATE_UWBEXIST = 0x0010, /* UWB hw available */
144 TP_ACPI_WGSV_STATE_UWBPWR = 0x0020, /* UWB radio enabled */
145};
125 146
126/**************************************************************************** 147/****************************************************************************
127 * Main driver 148 * Main driver
@@ -148,14 +169,17 @@ enum {
148enum { 169enum {
149 TPACPI_RFK_BLUETOOTH_SW_ID = 0, 170 TPACPI_RFK_BLUETOOTH_SW_ID = 0,
150 TPACPI_RFK_WWAN_SW_ID, 171 TPACPI_RFK_WWAN_SW_ID,
172 TPACPI_RFK_UWB_SW_ID,
151}; 173};
152 174
153/* Debugging */ 175/* Debugging */
154#define TPACPI_LOG TPACPI_FILE ": " 176#define TPACPI_LOG TPACPI_FILE ": "
155#define TPACPI_ERR KERN_ERR TPACPI_LOG 177#define TPACPI_ALERT KERN_ALERT TPACPI_LOG
156#define TPACPI_NOTICE KERN_NOTICE TPACPI_LOG 178#define TPACPI_CRIT KERN_CRIT TPACPI_LOG
157#define TPACPI_INFO KERN_INFO TPACPI_LOG 179#define TPACPI_ERR KERN_ERR TPACPI_LOG
158#define TPACPI_DEBUG KERN_DEBUG TPACPI_LOG 180#define TPACPI_NOTICE KERN_NOTICE TPACPI_LOG
181#define TPACPI_INFO KERN_INFO TPACPI_LOG
182#define TPACPI_DEBUG KERN_DEBUG TPACPI_LOG
159 183
160#define TPACPI_DBG_ALL 0xffff 184#define TPACPI_DBG_ALL 0xffff
161#define TPACPI_DBG_INIT 0x0001 185#define TPACPI_DBG_INIT 0x0001
@@ -201,6 +225,7 @@ struct ibm_struct {
201 void (*exit) (void); 225 void (*exit) (void);
202 void (*resume) (void); 226 void (*resume) (void);
203 void (*suspend) (pm_message_t state); 227 void (*suspend) (pm_message_t state);
228 void (*shutdown) (void);
204 229
205 struct list_head all_drivers; 230 struct list_head all_drivers;
206 231
@@ -239,6 +264,7 @@ static struct {
239 u32 bright_16levels:1; 264 u32 bright_16levels:1;
240 u32 bright_acpimode:1; 265 u32 bright_acpimode:1;
241 u32 wan:1; 266 u32 wan:1;
267 u32 uwb:1;
242 u32 fan_ctrl_status_undef:1; 268 u32 fan_ctrl_status_undef:1;
243 u32 input_device_registered:1; 269 u32 input_device_registered:1;
244 u32 platform_drv_registered:1; 270 u32 platform_drv_registered:1;
@@ -288,6 +314,18 @@ struct tpacpi_led_classdev {
288 unsigned int led; 314 unsigned int led;
289}; 315};
290 316
317#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
318static int dbg_wlswemul;
319static int tpacpi_wlsw_emulstate;
320static int dbg_bluetoothemul;
321static int tpacpi_bluetooth_emulstate;
322static int dbg_wwanemul;
323static int tpacpi_wwan_emulstate;
324static int dbg_uwbemul;
325static int tpacpi_uwb_emulstate;
326#endif
327
328
291/**************************************************************************** 329/****************************************************************************
292 **************************************************************************** 330 ****************************************************************************
293 * 331 *
@@ -728,6 +766,18 @@ static int tpacpi_resume_handler(struct platform_device *pdev)
728 return 0; 766 return 0;
729} 767}
730 768
769static void tpacpi_shutdown_handler(struct platform_device *pdev)
770{
771 struct ibm_struct *ibm, *itmp;
772
773 list_for_each_entry_safe(ibm, itmp,
774 &tpacpi_all_drivers,
775 all_drivers) {
776 if (ibm->shutdown)
777 (ibm->shutdown)();
778 }
779}
780
731static struct platform_driver tpacpi_pdriver = { 781static struct platform_driver tpacpi_pdriver = {
732 .driver = { 782 .driver = {
733 .name = TPACPI_DRVR_NAME, 783 .name = TPACPI_DRVR_NAME,
@@ -735,6 +785,7 @@ static struct platform_driver tpacpi_pdriver = {
735 }, 785 },
736 .suspend = tpacpi_suspend_handler, 786 .suspend = tpacpi_suspend_handler,
737 .resume = tpacpi_resume_handler, 787 .resume = tpacpi_resume_handler,
788 .shutdown = tpacpi_shutdown_handler,
738}; 789};
739 790
740static struct platform_driver tpacpi_hwmon_pdriver = { 791static struct platform_driver tpacpi_hwmon_pdriver = {
@@ -922,11 +973,27 @@ static int __init tpacpi_new_rfkill(const unsigned int id,
922 struct rfkill **rfk, 973 struct rfkill **rfk,
923 const enum rfkill_type rfktype, 974 const enum rfkill_type rfktype,
924 const char *name, 975 const char *name,
976 const bool set_default,
925 int (*toggle_radio)(void *, enum rfkill_state), 977 int (*toggle_radio)(void *, enum rfkill_state),
926 int (*get_state)(void *, enum rfkill_state *)) 978 int (*get_state)(void *, enum rfkill_state *))
927{ 979{
928 int res; 980 int res;
929 enum rfkill_state initial_state; 981 enum rfkill_state initial_state = RFKILL_STATE_SOFT_BLOCKED;
982
983 res = get_state(NULL, &initial_state);
984 if (res < 0) {
985 printk(TPACPI_ERR
986 "failed to read initial state for %s, error %d; "
987 "will turn radio off\n", name, res);
988 } else if (set_default) {
989 /* try to set the initial state as the default for the rfkill
990 * type, since we ask the firmware to preserve it across S5 in
991 * NVRAM */
992 rfkill_set_default(rfktype,
993 (initial_state == RFKILL_STATE_UNBLOCKED) ?
994 RFKILL_STATE_UNBLOCKED :
995 RFKILL_STATE_SOFT_BLOCKED);
996 }
930 997
931 *rfk = rfkill_allocate(&tpacpi_pdev->dev, rfktype); 998 *rfk = rfkill_allocate(&tpacpi_pdev->dev, rfktype);
932 if (!*rfk) { 999 if (!*rfk) {
@@ -938,9 +1005,7 @@ static int __init tpacpi_new_rfkill(const unsigned int id,
938 (*rfk)->name = name; 1005 (*rfk)->name = name;
939 (*rfk)->get_state = get_state; 1006 (*rfk)->get_state = get_state;
940 (*rfk)->toggle_radio = toggle_radio; 1007 (*rfk)->toggle_radio = toggle_radio;
941 1008 (*rfk)->state = initial_state;
942 if (!get_state(NULL, &initial_state))
943 (*rfk)->state = initial_state;
944 1009
945 res = rfkill_register(*rfk); 1010 res = rfkill_register(*rfk);
946 if (res < 0) { 1011 if (res < 0) {
@@ -1006,6 +1071,119 @@ static DRIVER_ATTR(version, S_IRUGO,
1006 1071
1007/* --------------------------------------------------------------------- */ 1072/* --------------------------------------------------------------------- */
1008 1073
1074#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
1075
1076static void tpacpi_send_radiosw_update(void);
1077
1078/* wlsw_emulstate ------------------------------------------------------ */
1079static ssize_t tpacpi_driver_wlsw_emulstate_show(struct device_driver *drv,
1080 char *buf)
1081{
1082 return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wlsw_emulstate);
1083}
1084
1085static ssize_t tpacpi_driver_wlsw_emulstate_store(struct device_driver *drv,
1086 const char *buf, size_t count)
1087{
1088 unsigned long t;
1089
1090 if (parse_strtoul(buf, 1, &t))
1091 return -EINVAL;
1092
1093 if (tpacpi_wlsw_emulstate != t) {
1094 tpacpi_wlsw_emulstate = !!t;
1095 tpacpi_send_radiosw_update();
1096 } else
1097 tpacpi_wlsw_emulstate = !!t;
1098
1099 return count;
1100}
1101
1102static DRIVER_ATTR(wlsw_emulstate, S_IWUSR | S_IRUGO,
1103 tpacpi_driver_wlsw_emulstate_show,
1104 tpacpi_driver_wlsw_emulstate_store);
1105
1106/* bluetooth_emulstate ------------------------------------------------- */
1107static ssize_t tpacpi_driver_bluetooth_emulstate_show(
1108 struct device_driver *drv,
1109 char *buf)
1110{
1111 return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_bluetooth_emulstate);
1112}
1113
1114static ssize_t tpacpi_driver_bluetooth_emulstate_store(
1115 struct device_driver *drv,
1116 const char *buf, size_t count)
1117{
1118 unsigned long t;
1119
1120 if (parse_strtoul(buf, 1, &t))
1121 return -EINVAL;
1122
1123 tpacpi_bluetooth_emulstate = !!t;
1124
1125 return count;
1126}
1127
1128static DRIVER_ATTR(bluetooth_emulstate, S_IWUSR | S_IRUGO,
1129 tpacpi_driver_bluetooth_emulstate_show,
1130 tpacpi_driver_bluetooth_emulstate_store);
1131
1132/* wwan_emulstate ------------------------------------------------- */
1133static ssize_t tpacpi_driver_wwan_emulstate_show(
1134 struct device_driver *drv,
1135 char *buf)
1136{
1137 return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wwan_emulstate);
1138}
1139
1140static ssize_t tpacpi_driver_wwan_emulstate_store(
1141 struct device_driver *drv,
1142 const char *buf, size_t count)
1143{
1144 unsigned long t;
1145
1146 if (parse_strtoul(buf, 1, &t))
1147 return -EINVAL;
1148
1149 tpacpi_wwan_emulstate = !!t;
1150
1151 return count;
1152}
1153
1154static DRIVER_ATTR(wwan_emulstate, S_IWUSR | S_IRUGO,
1155 tpacpi_driver_wwan_emulstate_show,
1156 tpacpi_driver_wwan_emulstate_store);
1157
1158/* uwb_emulstate ------------------------------------------------- */
1159static ssize_t tpacpi_driver_uwb_emulstate_show(
1160 struct device_driver *drv,
1161 char *buf)
1162{
1163 return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_uwb_emulstate);
1164}
1165
1166static ssize_t tpacpi_driver_uwb_emulstate_store(
1167 struct device_driver *drv,
1168 const char *buf, size_t count)
1169{
1170 unsigned long t;
1171
1172 if (parse_strtoul(buf, 1, &t))
1173 return -EINVAL;
1174
1175 tpacpi_uwb_emulstate = !!t;
1176
1177 return count;
1178}
1179
1180static DRIVER_ATTR(uwb_emulstate, S_IWUSR | S_IRUGO,
1181 tpacpi_driver_uwb_emulstate_show,
1182 tpacpi_driver_uwb_emulstate_store);
1183#endif
1184
1185/* --------------------------------------------------------------------- */
1186
1009static struct driver_attribute *tpacpi_driver_attributes[] = { 1187static struct driver_attribute *tpacpi_driver_attributes[] = {
1010 &driver_attr_debug_level, &driver_attr_version, 1188 &driver_attr_debug_level, &driver_attr_version,
1011 &driver_attr_interface_version, 1189 &driver_attr_interface_version,
@@ -1022,6 +1200,17 @@ static int __init tpacpi_create_driver_attributes(struct device_driver *drv)
1022 i++; 1200 i++;
1023 } 1201 }
1024 1202
1203#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
1204 if (!res && dbg_wlswemul)
1205 res = driver_create_file(drv, &driver_attr_wlsw_emulstate);
1206 if (!res && dbg_bluetoothemul)
1207 res = driver_create_file(drv, &driver_attr_bluetooth_emulstate);
1208 if (!res && dbg_wwanemul)
1209 res = driver_create_file(drv, &driver_attr_wwan_emulstate);
1210 if (!res && dbg_uwbemul)
1211 res = driver_create_file(drv, &driver_attr_uwb_emulstate);
1212#endif
1213
1025 return res; 1214 return res;
1026} 1215}
1027 1216
@@ -1031,6 +1220,13 @@ static void tpacpi_remove_driver_attributes(struct device_driver *drv)
1031 1220
1032 for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) 1221 for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++)
1033 driver_remove_file(drv, tpacpi_driver_attributes[i]); 1222 driver_remove_file(drv, tpacpi_driver_attributes[i]);
1223
1224#ifdef THINKPAD_ACPI_DEBUGFACILITIES
1225 driver_remove_file(drv, &driver_attr_wlsw_emulstate);
1226 driver_remove_file(drv, &driver_attr_bluetooth_emulstate);
1227 driver_remove_file(drv, &driver_attr_wwan_emulstate);
1228 driver_remove_file(drv, &driver_attr_uwb_emulstate);
1229#endif
1034} 1230}
1035 1231
1036/**************************************************************************** 1232/****************************************************************************
@@ -1216,6 +1412,12 @@ static struct attribute_set *hotkey_dev_attributes;
1216 1412
1217static int hotkey_get_wlsw(int *status) 1413static int hotkey_get_wlsw(int *status)
1218{ 1414{
1415#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
1416 if (dbg_wlswemul) {
1417 *status = !!tpacpi_wlsw_emulstate;
1418 return 0;
1419 }
1420#endif
1219 if (!acpi_evalf(hkey_handle, status, "WLSW", "d")) 1421 if (!acpi_evalf(hkey_handle, status, "WLSW", "d"))
1220 return -EIO; 1422 return -EIO;
1221 return 0; 1423 return 0;
@@ -1678,7 +1880,7 @@ static ssize_t hotkey_mask_show(struct device *dev,
1678{ 1880{
1679 int res; 1881 int res;
1680 1882
1681 if (mutex_lock_interruptible(&hotkey_mutex)) 1883 if (mutex_lock_killable(&hotkey_mutex))
1682 return -ERESTARTSYS; 1884 return -ERESTARTSYS;
1683 res = hotkey_mask_get(); 1885 res = hotkey_mask_get();
1684 mutex_unlock(&hotkey_mutex); 1886 mutex_unlock(&hotkey_mutex);
@@ -1697,7 +1899,7 @@ static ssize_t hotkey_mask_store(struct device *dev,
1697 if (parse_strtoul(buf, 0xffffffffUL, &t)) 1899 if (parse_strtoul(buf, 0xffffffffUL, &t))
1698 return -EINVAL; 1900 return -EINVAL;
1699 1901
1700 if (mutex_lock_interruptible(&hotkey_mutex)) 1902 if (mutex_lock_killable(&hotkey_mutex))
1701 return -ERESTARTSYS; 1903 return -ERESTARTSYS;
1702 1904
1703 res = hotkey_mask_set(t); 1905 res = hotkey_mask_set(t);
@@ -1783,7 +1985,7 @@ static ssize_t hotkey_source_mask_store(struct device *dev,
1783 ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) 1985 ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0))
1784 return -EINVAL; 1986 return -EINVAL;
1785 1987
1786 if (mutex_lock_interruptible(&hotkey_mutex)) 1988 if (mutex_lock_killable(&hotkey_mutex))
1787 return -ERESTARTSYS; 1989 return -ERESTARTSYS;
1788 1990
1789 HOTKEY_CONFIG_CRITICAL_START 1991 HOTKEY_CONFIG_CRITICAL_START
@@ -1818,7 +2020,7 @@ static ssize_t hotkey_poll_freq_store(struct device *dev,
1818 if (parse_strtoul(buf, 25, &t)) 2020 if (parse_strtoul(buf, 25, &t))
1819 return -EINVAL; 2021 return -EINVAL;
1820 2022
1821 if (mutex_lock_interruptible(&hotkey_mutex)) 2023 if (mutex_lock_killable(&hotkey_mutex))
1822 return -ERESTARTSYS; 2024 return -ERESTARTSYS;
1823 2025
1824 hotkey_poll_freq = t; 2026 hotkey_poll_freq = t;
@@ -1958,6 +2160,7 @@ static struct attribute *hotkey_mask_attributes[] __initdata = {
1958 2160
1959static void bluetooth_update_rfk(void); 2161static void bluetooth_update_rfk(void);
1960static void wan_update_rfk(void); 2162static void wan_update_rfk(void);
2163static void uwb_update_rfk(void);
1961static void tpacpi_send_radiosw_update(void) 2164static void tpacpi_send_radiosw_update(void)
1962{ 2165{
1963 int wlsw; 2166 int wlsw;
@@ -1967,6 +2170,8 @@ static void tpacpi_send_radiosw_update(void)
1967 bluetooth_update_rfk(); 2170 bluetooth_update_rfk();
1968 if (tp_features.wan) 2171 if (tp_features.wan)
1969 wan_update_rfk(); 2172 wan_update_rfk();
2173 if (tp_features.uwb)
2174 uwb_update_rfk();
1970 2175
1971 if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) { 2176 if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) {
1972 mutex_lock(&tpacpi_inputdev_send_mutex); 2177 mutex_lock(&tpacpi_inputdev_send_mutex);
@@ -2222,6 +2427,13 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
2222 hotkey_source_mask, hotkey_poll_freq); 2427 hotkey_source_mask, hotkey_poll_freq);
2223#endif 2428#endif
2224 2429
2430#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
2431 if (dbg_wlswemul) {
2432 tp_features.hotkey_wlsw = 1;
2433 printk(TPACPI_INFO
2434 "radio switch emulation enabled\n");
2435 } else
2436#endif
2225 /* Not all thinkpads have a hardware radio switch */ 2437 /* Not all thinkpads have a hardware radio switch */
2226 if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { 2438 if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) {
2227 tp_features.hotkey_wlsw = 1; 2439 tp_features.hotkey_wlsw = 1;
@@ -2361,13 +2573,154 @@ err_exit:
2361 return (res < 0)? res : 1; 2573 return (res < 0)? res : 1;
2362} 2574}
2363 2575
2576static bool hotkey_notify_hotkey(const u32 hkey,
2577 bool *send_acpi_ev,
2578 bool *ignore_acpi_ev)
2579{
2580 /* 0x1000-0x1FFF: key presses */
2581 unsigned int scancode = hkey & 0xfff;
2582 *send_acpi_ev = true;
2583 *ignore_acpi_ev = false;
2584
2585 if (scancode > 0 && scancode < 0x21) {
2586 scancode--;
2587 if (!(hotkey_source_mask & (1 << scancode))) {
2588 tpacpi_input_send_key(scancode);
2589 *send_acpi_ev = false;
2590 } else {
2591 *ignore_acpi_ev = true;
2592 }
2593 return true;
2594 }
2595 return false;
2596}
2597
2598static bool hotkey_notify_wakeup(const u32 hkey,
2599 bool *send_acpi_ev,
2600 bool *ignore_acpi_ev)
2601{
2602 /* 0x2000-0x2FFF: Wakeup reason */
2603 *send_acpi_ev = true;
2604 *ignore_acpi_ev = false;
2605
2606 switch (hkey) {
2607 case 0x2304: /* suspend, undock */
2608 case 0x2404: /* hibernation, undock */
2609 hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK;
2610 *ignore_acpi_ev = true;
2611 break;
2612
2613 case 0x2305: /* suspend, bay eject */
2614 case 0x2405: /* hibernation, bay eject */
2615 hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ;
2616 *ignore_acpi_ev = true;
2617 break;
2618
2619 case 0x2313: /* Battery on critical low level (S3) */
2620 case 0x2413: /* Battery on critical low level (S4) */
2621 printk(TPACPI_ALERT
2622 "EMERGENCY WAKEUP: battery almost empty\n");
2623 /* how to auto-heal: */
2624 /* 2313: woke up from S3, go to S4/S5 */
2625 /* 2413: woke up from S4, go to S5 */
2626 break;
2627
2628 default:
2629 return false;
2630 }
2631
2632 if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) {
2633 printk(TPACPI_INFO
2634 "woke up due to a hot-unplug "
2635 "request...\n");
2636 hotkey_wakeup_reason_notify_change();
2637 }
2638 return true;
2639}
2640
2641static bool hotkey_notify_usrevent(const u32 hkey,
2642 bool *send_acpi_ev,
2643 bool *ignore_acpi_ev)
2644{
2645 /* 0x5000-0x5FFF: human interface helpers */
2646 *send_acpi_ev = true;
2647 *ignore_acpi_ev = false;
2648
2649 switch (hkey) {
2650 case 0x5010: /* Lenovo new BIOS: brightness changed */
2651 case 0x500b: /* X61t: tablet pen inserted into bay */
2652 case 0x500c: /* X61t: tablet pen removed from bay */
2653 return true;
2654
2655 case 0x5009: /* X41t-X61t: swivel up (tablet mode) */
2656 case 0x500a: /* X41t-X61t: swivel down (normal mode) */
2657 tpacpi_input_send_tabletsw();
2658 hotkey_tablet_mode_notify_change();
2659 *send_acpi_ev = false;
2660 return true;
2661
2662 case 0x5001:
2663 case 0x5002:
2664 /* LID switch events. Do not propagate */
2665 *ignore_acpi_ev = true;
2666 return true;
2667
2668 default:
2669 return false;
2670 }
2671}
2672
2673static bool hotkey_notify_thermal(const u32 hkey,
2674 bool *send_acpi_ev,
2675 bool *ignore_acpi_ev)
2676{
2677 /* 0x6000-0x6FFF: thermal alarms */
2678 *send_acpi_ev = true;
2679 *ignore_acpi_ev = false;
2680
2681 switch (hkey) {
2682 case 0x6011:
2683 printk(TPACPI_CRIT
2684 "THERMAL ALARM: battery is too hot!\n");
2685 /* recommended action: warn user through gui */
2686 return true;
2687 case 0x6012:
2688 printk(TPACPI_ALERT
2689 "THERMAL EMERGENCY: battery is extremely hot!\n");
2690 /* recommended action: immediate sleep/hibernate */
2691 return true;
2692 case 0x6021:
2693 printk(TPACPI_CRIT
2694 "THERMAL ALARM: "
2695 "a sensor reports something is too hot!\n");
2696 /* recommended action: warn user through gui, that */
2697 /* some internal component is too hot */
2698 return true;
2699 case 0x6022:
2700 printk(TPACPI_ALERT
2701 "THERMAL EMERGENCY: "
2702 "a sensor reports something is extremely hot!\n");
2703 /* recommended action: immediate sleep/hibernate */
2704 return true;
2705 case 0x6030:
2706 printk(TPACPI_INFO
2707 "EC reports that Thermal Table has changed\n");
2708 /* recommended action: do nothing, we don't have
2709 * Lenovo ATM information */
2710 return true;
2711 default:
2712 printk(TPACPI_ALERT
2713 "THERMAL ALERT: unknown thermal alarm received\n");
2714 return false;
2715 }
2716}
2717
2364static void hotkey_notify(struct ibm_struct *ibm, u32 event) 2718static void hotkey_notify(struct ibm_struct *ibm, u32 event)
2365{ 2719{
2366 u32 hkey; 2720 u32 hkey;
2367 unsigned int scancode; 2721 bool send_acpi_ev;
2368 int send_acpi_ev; 2722 bool ignore_acpi_ev;
2369 int ignore_acpi_ev; 2723 bool known_ev;
2370 int unk_ev;
2371 2724
2372 if (event != 0x80) { 2725 if (event != 0x80) {
2373 printk(TPACPI_ERR 2726 printk(TPACPI_ERR
@@ -2375,7 +2728,7 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
2375 /* forward it to userspace, maybe it knows how to handle it */ 2728 /* forward it to userspace, maybe it knows how to handle it */
2376 acpi_bus_generate_netlink_event( 2729 acpi_bus_generate_netlink_event(
2377 ibm->acpi->device->pnp.device_class, 2730 ibm->acpi->device->pnp.device_class,
2378 ibm->acpi->device->dev.bus_id, 2731 dev_name(&ibm->acpi->device->dev),
2379 event, 0); 2732 event, 0);
2380 return; 2733 return;
2381 } 2734 }
@@ -2391,107 +2744,72 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
2391 return; 2744 return;
2392 } 2745 }
2393 2746
2394 send_acpi_ev = 1; 2747 send_acpi_ev = true;
2395 ignore_acpi_ev = 0; 2748 ignore_acpi_ev = false;
2396 unk_ev = 0;
2397 2749
2398 switch (hkey >> 12) { 2750 switch (hkey >> 12) {
2399 case 1: 2751 case 1:
2400 /* 0x1000-0x1FFF: key presses */ 2752 /* 0x1000-0x1FFF: key presses */
2401 scancode = hkey & 0xfff; 2753 known_ev = hotkey_notify_hotkey(hkey, &send_acpi_ev,
2402 if (scancode > 0 && scancode < 0x21) { 2754 &ignore_acpi_ev);
2403 scancode--;
2404 if (!(hotkey_source_mask & (1 << scancode))) {
2405 tpacpi_input_send_key(scancode);
2406 send_acpi_ev = 0;
2407 } else {
2408 ignore_acpi_ev = 1;
2409 }
2410 } else {
2411 unk_ev = 1;
2412 }
2413 break; 2755 break;
2414 case 2: 2756 case 2:
2415 /* Wakeup reason */ 2757 /* 0x2000-0x2FFF: Wakeup reason */
2416 switch (hkey) { 2758 known_ev = hotkey_notify_wakeup(hkey, &send_acpi_ev,
2417 case 0x2304: /* suspend, undock */ 2759 &ignore_acpi_ev);
2418 case 0x2404: /* hibernation, undock */
2419 hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK;
2420 ignore_acpi_ev = 1;
2421 break;
2422 case 0x2305: /* suspend, bay eject */
2423 case 0x2405: /* hibernation, bay eject */
2424 hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ;
2425 ignore_acpi_ev = 1;
2426 break;
2427 default:
2428 unk_ev = 1;
2429 }
2430 if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) {
2431 printk(TPACPI_INFO
2432 "woke up due to a hot-unplug "
2433 "request...\n");
2434 hotkey_wakeup_reason_notify_change();
2435 }
2436 break; 2760 break;
2437 case 3: 2761 case 3:
2438 /* bay-related wakeups */ 2762 /* 0x3000-0x3FFF: bay-related wakeups */
2439 if (hkey == 0x3003) { 2763 if (hkey == 0x3003) {
2440 hotkey_autosleep_ack = 1; 2764 hotkey_autosleep_ack = 1;
2441 printk(TPACPI_INFO 2765 printk(TPACPI_INFO
2442 "bay ejected\n"); 2766 "bay ejected\n");
2443 hotkey_wakeup_hotunplug_complete_notify_change(); 2767 hotkey_wakeup_hotunplug_complete_notify_change();
2768 known_ev = true;
2444 } else { 2769 } else {
2445 unk_ev = 1; 2770 known_ev = false;
2446 } 2771 }
2447 break; 2772 break;
2448 case 4: 2773 case 4:
2449 /* dock-related wakeups */ 2774 /* 0x4000-0x4FFF: dock-related wakeups */
2450 if (hkey == 0x4003) { 2775 if (hkey == 0x4003) {
2451 hotkey_autosleep_ack = 1; 2776 hotkey_autosleep_ack = 1;
2452 printk(TPACPI_INFO 2777 printk(TPACPI_INFO
2453 "undocked\n"); 2778 "undocked\n");
2454 hotkey_wakeup_hotunplug_complete_notify_change(); 2779 hotkey_wakeup_hotunplug_complete_notify_change();
2780 known_ev = true;
2455 } else { 2781 } else {
2456 unk_ev = 1; 2782 known_ev = false;
2457 } 2783 }
2458 break; 2784 break;
2459 case 5: 2785 case 5:
2460 /* 0x5000-0x5FFF: human interface helpers */ 2786 /* 0x5000-0x5FFF: human interface helpers */
2461 switch (hkey) { 2787 known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev,
2462 case 0x5010: /* Lenovo new BIOS: brightness changed */ 2788 &ignore_acpi_ev);
2463 case 0x500b: /* X61t: tablet pen inserted into bay */ 2789 break;
2464 case 0x500c: /* X61t: tablet pen removed from bay */ 2790 case 6:
2465 break; 2791 /* 0x6000-0x6FFF: thermal alarms */
2466 case 0x5009: /* X41t-X61t: swivel up (tablet mode) */ 2792 known_ev = hotkey_notify_thermal(hkey, &send_acpi_ev,
2467 case 0x500a: /* X41t-X61t: swivel down (normal mode) */ 2793 &ignore_acpi_ev);
2468 tpacpi_input_send_tabletsw();
2469 hotkey_tablet_mode_notify_change();
2470 send_acpi_ev = 0;
2471 break;
2472 case 0x5001:
2473 case 0x5002:
2474 /* LID switch events. Do not propagate */
2475 ignore_acpi_ev = 1;
2476 break;
2477 default:
2478 unk_ev = 1;
2479 }
2480 break; 2794 break;
2481 case 7: 2795 case 7:
2482 /* 0x7000-0x7FFF: misc */ 2796 /* 0x7000-0x7FFF: misc */
2483 if (tp_features.hotkey_wlsw && hkey == 0x7000) { 2797 if (tp_features.hotkey_wlsw && hkey == 0x7000) {
2484 tpacpi_send_radiosw_update(); 2798 tpacpi_send_radiosw_update();
2485 send_acpi_ev = 0; 2799 send_acpi_ev = 0;
2800 known_ev = true;
2486 break; 2801 break;
2487 } 2802 }
2488 /* fallthrough to default */ 2803 /* fallthrough to default */
2489 default: 2804 default:
2490 unk_ev = 1; 2805 known_ev = false;
2491 } 2806 }
2492 if (unk_ev) { 2807 if (!known_ev) {
2493 printk(TPACPI_NOTICE 2808 printk(TPACPI_NOTICE
2494 "unhandled HKEY event 0x%04x\n", hkey); 2809 "unhandled HKEY event 0x%04x\n", hkey);
2810 printk(TPACPI_NOTICE
2811 "please report the conditions when this "
2812 "event happened to %s\n", TPACPI_MAIL);
2495 } 2813 }
2496 2814
2497 /* Legacy events */ 2815 /* Legacy events */
@@ -2505,7 +2823,7 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
2505 if (!ignore_acpi_ev && send_acpi_ev) { 2823 if (!ignore_acpi_ev && send_acpi_ev) {
2506 acpi_bus_generate_netlink_event( 2824 acpi_bus_generate_netlink_event(
2507 ibm->acpi->device->pnp.device_class, 2825 ibm->acpi->device->pnp.device_class,
2508 ibm->acpi->device->dev.bus_id, 2826 dev_name(&ibm->acpi->device->dev),
2509 event, hkey); 2827 event, hkey);
2510 } 2828 }
2511 } 2829 }
@@ -2544,7 +2862,7 @@ static int hotkey_read(char *p)
2544 return len; 2862 return len;
2545 } 2863 }
2546 2864
2547 if (mutex_lock_interruptible(&hotkey_mutex)) 2865 if (mutex_lock_killable(&hotkey_mutex))
2548 return -ERESTARTSYS; 2866 return -ERESTARTSYS;
2549 res = hotkey_status_get(&status); 2867 res = hotkey_status_get(&status);
2550 if (!res) 2868 if (!res)
@@ -2575,7 +2893,7 @@ static int hotkey_write(char *buf)
2575 if (!tp_features.hotkey) 2893 if (!tp_features.hotkey)
2576 return -ENODEV; 2894 return -ENODEV;
2577 2895
2578 if (mutex_lock_interruptible(&hotkey_mutex)) 2896 if (mutex_lock_killable(&hotkey_mutex))
2579 return -ERESTARTSYS; 2897 return -ERESTARTSYS;
2580 2898
2581 status = -1; 2899 status = -1;
@@ -2640,11 +2958,28 @@ enum {
2640 /* ACPI GBDC/SBDC bits */ 2958 /* ACPI GBDC/SBDC bits */
2641 TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ 2959 TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */
2642 TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ 2960 TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */
2643 TP_ACPI_BLUETOOTH_UNK = 0x04, /* unknown function */ 2961 TP_ACPI_BLUETOOTH_RESUMECTRL = 0x04, /* Bluetooth state at resume:
2962 off / last state */
2963};
2964
2965enum {
2966 /* ACPI \BLTH commands */
2967 TP_ACPI_BLTH_GET_ULTRAPORT_ID = 0x00, /* Get Ultraport BT ID */
2968 TP_ACPI_BLTH_GET_PWR_ON_RESUME = 0x01, /* Get power-on-resume state */
2969 TP_ACPI_BLTH_PWR_ON_ON_RESUME = 0x02, /* Resume powered on */
2970 TP_ACPI_BLTH_PWR_OFF_ON_RESUME = 0x03, /* Resume powered off */
2971 TP_ACPI_BLTH_SAVE_STATE = 0x05, /* Save state for S4/S5 */
2644}; 2972};
2645 2973
2646static struct rfkill *tpacpi_bluetooth_rfkill; 2974static struct rfkill *tpacpi_bluetooth_rfkill;
2647 2975
2976static void bluetooth_suspend(pm_message_t state)
2977{
2978 /* Try to make sure radio will resume powered off */
2979 acpi_evalf(NULL, NULL, "\\BLTH", "vd",
2980 TP_ACPI_BLTH_PWR_OFF_ON_RESUME);
2981}
2982
2648static int bluetooth_get_radiosw(void) 2983static int bluetooth_get_radiosw(void)
2649{ 2984{
2650 int status; 2985 int status;
@@ -2656,6 +2991,12 @@ static int bluetooth_get_radiosw(void)
2656 if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status) 2991 if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status)
2657 return RFKILL_STATE_HARD_BLOCKED; 2992 return RFKILL_STATE_HARD_BLOCKED;
2658 2993
2994#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
2995 if (dbg_bluetoothemul)
2996 return (tpacpi_bluetooth_emulstate) ?
2997 RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED;
2998#endif
2999
2659 if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) 3000 if (!acpi_evalf(hkey_handle, &status, "GBDC", "d"))
2660 return -EIO; 3001 return -EIO;
2661 3002
@@ -2689,12 +3030,20 @@ static int bluetooth_set_radiosw(int radio_on, int update_rfk)
2689 && radio_on) 3030 && radio_on)
2690 return -EPERM; 3031 return -EPERM;
2691 3032
2692 if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) 3033#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
2693 return -EIO; 3034 if (dbg_bluetoothemul) {
3035 tpacpi_bluetooth_emulstate = !!radio_on;
3036 if (update_rfk)
3037 bluetooth_update_rfk();
3038 return 0;
3039 }
3040#endif
3041
3042 /* We make sure to keep TP_ACPI_BLUETOOTH_RESUMECTRL off */
2694 if (radio_on) 3043 if (radio_on)
2695 status |= TP_ACPI_BLUETOOTH_RADIOSSW; 3044 status = TP_ACPI_BLUETOOTH_RADIOSSW;
2696 else 3045 else
2697 status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; 3046 status = 0;
2698 if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) 3047 if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status))
2699 return -EIO; 3048 return -EIO;
2700 3049
@@ -2765,8 +3114,19 @@ static int tpacpi_bluetooth_rfk_set(void *data, enum rfkill_state state)
2765 return bluetooth_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0); 3114 return bluetooth_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0);
2766} 3115}
2767 3116
3117static void bluetooth_shutdown(void)
3118{
3119 /* Order firmware to save current state to NVRAM */
3120 if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd",
3121 TP_ACPI_BLTH_SAVE_STATE))
3122 printk(TPACPI_NOTICE
3123 "failed to save bluetooth state to NVRAM\n");
3124}
3125
2768static void bluetooth_exit(void) 3126static void bluetooth_exit(void)
2769{ 3127{
3128 bluetooth_shutdown();
3129
2770 if (tpacpi_bluetooth_rfkill) 3130 if (tpacpi_bluetooth_rfkill)
2771 rfkill_unregister(tpacpi_bluetooth_rfkill); 3131 rfkill_unregister(tpacpi_bluetooth_rfkill);
2772 3132
@@ -2792,6 +3152,13 @@ static int __init bluetooth_init(struct ibm_init_struct *iibm)
2792 str_supported(tp_features.bluetooth), 3152 str_supported(tp_features.bluetooth),
2793 status); 3153 status);
2794 3154
3155#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
3156 if (dbg_bluetoothemul) {
3157 tp_features.bluetooth = 1;
3158 printk(TPACPI_INFO
3159 "bluetooth switch emulation enabled\n");
3160 } else
3161#endif
2795 if (tp_features.bluetooth && 3162 if (tp_features.bluetooth &&
2796 !(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { 3163 !(status & TP_ACPI_BLUETOOTH_HWPRESENT)) {
2797 /* no bluetooth hardware present in system */ 3164 /* no bluetooth hardware present in system */
@@ -2812,6 +3179,7 @@ static int __init bluetooth_init(struct ibm_init_struct *iibm)
2812 &tpacpi_bluetooth_rfkill, 3179 &tpacpi_bluetooth_rfkill,
2813 RFKILL_TYPE_BLUETOOTH, 3180 RFKILL_TYPE_BLUETOOTH,
2814 "tpacpi_bluetooth_sw", 3181 "tpacpi_bluetooth_sw",
3182 true,
2815 tpacpi_bluetooth_rfk_set, 3183 tpacpi_bluetooth_rfk_set,
2816 tpacpi_bluetooth_rfk_get); 3184 tpacpi_bluetooth_rfk_get);
2817 if (res) { 3185 if (res) {
@@ -2864,6 +3232,8 @@ static struct ibm_struct bluetooth_driver_data = {
2864 .read = bluetooth_read, 3232 .read = bluetooth_read,
2865 .write = bluetooth_write, 3233 .write = bluetooth_write,
2866 .exit = bluetooth_exit, 3234 .exit = bluetooth_exit,
3235 .suspend = bluetooth_suspend,
3236 .shutdown = bluetooth_shutdown,
2867}; 3237};
2868 3238
2869/************************************************************************* 3239/*************************************************************************
@@ -2874,11 +3244,19 @@ enum {
2874 /* ACPI GWAN/SWAN bits */ 3244 /* ACPI GWAN/SWAN bits */
2875 TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ 3245 TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */
2876 TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ 3246 TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */
2877 TP_ACPI_WANCARD_UNK = 0x04, /* unknown function */ 3247 TP_ACPI_WANCARD_RESUMECTRL = 0x04, /* Wan state at resume:
3248 off / last state */
2878}; 3249};
2879 3250
2880static struct rfkill *tpacpi_wan_rfkill; 3251static struct rfkill *tpacpi_wan_rfkill;
2881 3252
3253static void wan_suspend(pm_message_t state)
3254{
3255 /* Try to make sure radio will resume powered off */
3256 acpi_evalf(NULL, NULL, "\\WGSV", "qvd",
3257 TP_ACPI_WGSV_PWR_OFF_ON_RESUME);
3258}
3259
2882static int wan_get_radiosw(void) 3260static int wan_get_radiosw(void)
2883{ 3261{
2884 int status; 3262 int status;
@@ -2890,6 +3268,12 @@ static int wan_get_radiosw(void)
2890 if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status) 3268 if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status)
2891 return RFKILL_STATE_HARD_BLOCKED; 3269 return RFKILL_STATE_HARD_BLOCKED;
2892 3270
3271#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
3272 if (dbg_wwanemul)
3273 return (tpacpi_wwan_emulstate) ?
3274 RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED;
3275#endif
3276
2893 if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) 3277 if (!acpi_evalf(hkey_handle, &status, "GWAN", "d"))
2894 return -EIO; 3278 return -EIO;
2895 3279
@@ -2923,12 +3307,20 @@ static int wan_set_radiosw(int radio_on, int update_rfk)
2923 && radio_on) 3307 && radio_on)
2924 return -EPERM; 3308 return -EPERM;
2925 3309
2926 if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) 3310#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
2927 return -EIO; 3311 if (dbg_wwanemul) {
3312 tpacpi_wwan_emulstate = !!radio_on;
3313 if (update_rfk)
3314 wan_update_rfk();
3315 return 0;
3316 }
3317#endif
3318
3319 /* We make sure to keep TP_ACPI_WANCARD_RESUMECTRL off */
2928 if (radio_on) 3320 if (radio_on)
2929 status |= TP_ACPI_WANCARD_RADIOSSW; 3321 status = TP_ACPI_WANCARD_RADIOSSW;
2930 else 3322 else
2931 status &= ~TP_ACPI_WANCARD_RADIOSSW; 3323 status = 0;
2932 if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) 3324 if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status))
2933 return -EIO; 3325 return -EIO;
2934 3326
@@ -2999,8 +3391,19 @@ static int tpacpi_wan_rfk_set(void *data, enum rfkill_state state)
2999 return wan_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0); 3391 return wan_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0);
3000} 3392}
3001 3393
3394static void wan_shutdown(void)
3395{
3396 /* Order firmware to save current state to NVRAM */
3397 if (!acpi_evalf(NULL, NULL, "\\WGSV", "vd",
3398 TP_ACPI_WGSV_SAVE_STATE))
3399 printk(TPACPI_NOTICE
3400 "failed to save WWAN state to NVRAM\n");
3401}
3402
3002static void wan_exit(void) 3403static void wan_exit(void)
3003{ 3404{
3405 wan_shutdown();
3406
3004 if (tpacpi_wan_rfkill) 3407 if (tpacpi_wan_rfkill)
3005 rfkill_unregister(tpacpi_wan_rfkill); 3408 rfkill_unregister(tpacpi_wan_rfkill);
3006 3409
@@ -3024,6 +3427,13 @@ static int __init wan_init(struct ibm_init_struct *iibm)
3024 str_supported(tp_features.wan), 3427 str_supported(tp_features.wan),
3025 status); 3428 status);
3026 3429
3430#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
3431 if (dbg_wwanemul) {
3432 tp_features.wan = 1;
3433 printk(TPACPI_INFO
3434 "wwan switch emulation enabled\n");
3435 } else
3436#endif
3027 if (tp_features.wan && 3437 if (tp_features.wan &&
3028 !(status & TP_ACPI_WANCARD_HWPRESENT)) { 3438 !(status & TP_ACPI_WANCARD_HWPRESENT)) {
3029 /* no wan hardware present in system */ 3439 /* no wan hardware present in system */
@@ -3044,6 +3454,7 @@ static int __init wan_init(struct ibm_init_struct *iibm)
3044 &tpacpi_wan_rfkill, 3454 &tpacpi_wan_rfkill,
3045 RFKILL_TYPE_WWAN, 3455 RFKILL_TYPE_WWAN,
3046 "tpacpi_wwan_sw", 3456 "tpacpi_wwan_sw",
3457 true,
3047 tpacpi_wan_rfk_set, 3458 tpacpi_wan_rfk_set,
3048 tpacpi_wan_rfk_get); 3459 tpacpi_wan_rfk_get);
3049 if (res) { 3460 if (res) {
@@ -3096,6 +3507,164 @@ static struct ibm_struct wan_driver_data = {
3096 .read = wan_read, 3507 .read = wan_read,
3097 .write = wan_write, 3508 .write = wan_write,
3098 .exit = wan_exit, 3509 .exit = wan_exit,
3510 .suspend = wan_suspend,
3511 .shutdown = wan_shutdown,
3512};
3513
3514/*************************************************************************
3515 * UWB subdriver
3516 */
3517
3518enum {
3519 /* ACPI GUWB/SUWB bits */
3520 TP_ACPI_UWB_HWPRESENT = 0x01, /* UWB hw available */
3521 TP_ACPI_UWB_RADIOSSW = 0x02, /* UWB radio enabled */
3522};
3523
3524static struct rfkill *tpacpi_uwb_rfkill;
3525
3526static int uwb_get_radiosw(void)
3527{
3528 int status;
3529
3530 if (!tp_features.uwb)
3531 return -ENODEV;
3532
3533 /* WLSW overrides UWB in firmware/hardware, reflect that */
3534 if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status)
3535 return RFKILL_STATE_HARD_BLOCKED;
3536
3537#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
3538 if (dbg_uwbemul)
3539 return (tpacpi_uwb_emulstate) ?
3540 RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED;
3541#endif
3542
3543 if (!acpi_evalf(hkey_handle, &status, "GUWB", "d"))
3544 return -EIO;
3545
3546 return ((status & TP_ACPI_UWB_RADIOSSW) != 0) ?
3547 RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED;
3548}
3549
3550static void uwb_update_rfk(void)
3551{
3552 int status;
3553
3554 if (!tpacpi_uwb_rfkill)
3555 return;
3556
3557 status = uwb_get_radiosw();
3558 if (status < 0)
3559 return;
3560 rfkill_force_state(tpacpi_uwb_rfkill, status);
3561}
3562
3563static int uwb_set_radiosw(int radio_on, int update_rfk)
3564{
3565 int status;
3566
3567 if (!tp_features.uwb)
3568 return -ENODEV;
3569
3570 /* WLSW overrides UWB in firmware/hardware, but there is no
3571 * reason to risk weird behaviour. */
3572 if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status
3573 && radio_on)
3574 return -EPERM;
3575
3576#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
3577 if (dbg_uwbemul) {
3578 tpacpi_uwb_emulstate = !!radio_on;
3579 if (update_rfk)
3580 uwb_update_rfk();
3581 return 0;
3582 }
3583#endif
3584
3585 status = (radio_on) ? TP_ACPI_UWB_RADIOSSW : 0;
3586 if (!acpi_evalf(hkey_handle, NULL, "SUWB", "vd", status))
3587 return -EIO;
3588
3589 if (update_rfk)
3590 uwb_update_rfk();
3591
3592 return 0;
3593}
3594
3595/* --------------------------------------------------------------------- */
3596
3597static int tpacpi_uwb_rfk_get(void *data, enum rfkill_state *state)
3598{
3599 int uwbs = uwb_get_radiosw();
3600
3601 if (uwbs < 0)
3602 return uwbs;
3603
3604 *state = uwbs;
3605 return 0;
3606}
3607
3608static int tpacpi_uwb_rfk_set(void *data, enum rfkill_state state)
3609{
3610 return uwb_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0);
3611}
3612
3613static void uwb_exit(void)
3614{
3615 if (tpacpi_uwb_rfkill)
3616 rfkill_unregister(tpacpi_uwb_rfkill);
3617}
3618
3619static int __init uwb_init(struct ibm_init_struct *iibm)
3620{
3621 int res;
3622 int status = 0;
3623
3624 vdbg_printk(TPACPI_DBG_INIT, "initializing uwb subdriver\n");
3625
3626 TPACPI_ACPIHANDLE_INIT(hkey);
3627
3628 tp_features.uwb = hkey_handle &&
3629 acpi_evalf(hkey_handle, &status, "GUWB", "qd");
3630
3631 vdbg_printk(TPACPI_DBG_INIT, "uwb is %s, status 0x%02x\n",
3632 str_supported(tp_features.uwb),
3633 status);
3634
3635#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
3636 if (dbg_uwbemul) {
3637 tp_features.uwb = 1;
3638 printk(TPACPI_INFO
3639 "uwb switch emulation enabled\n");
3640 } else
3641#endif
3642 if (tp_features.uwb &&
3643 !(status & TP_ACPI_UWB_HWPRESENT)) {
3644 /* no uwb hardware present in system */
3645 tp_features.uwb = 0;
3646 dbg_printk(TPACPI_DBG_INIT,
3647 "uwb hardware not installed\n");
3648 }
3649
3650 if (!tp_features.uwb)
3651 return 1;
3652
3653 res = tpacpi_new_rfkill(TPACPI_RFK_UWB_SW_ID,
3654 &tpacpi_uwb_rfkill,
3655 RFKILL_TYPE_UWB,
3656 "tpacpi_uwb_sw",
3657 false,
3658 tpacpi_uwb_rfk_set,
3659 tpacpi_uwb_rfk_get);
3660
3661 return res;
3662}
3663
3664static struct ibm_struct uwb_driver_data = {
3665 .name = "uwb",
3666 .exit = uwb_exit,
3667 .flags.experimental = 1,
3099}; 3668};
3100 3669
3101/************************************************************************* 3670/*************************************************************************
@@ -3724,7 +4293,7 @@ static void dock_notify(struct ibm_struct *ibm, u32 event)
3724 } 4293 }
3725 acpi_bus_generate_proc_event(ibm->acpi->device, event, data); 4294 acpi_bus_generate_proc_event(ibm->acpi->device, event, data);
3726 acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, 4295 acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
3727 ibm->acpi->device->dev.bus_id, 4296 dev_name(&ibm->acpi->device->dev),
3728 event, data); 4297 event, data);
3729} 4298}
3730 4299
@@ -3826,7 +4395,7 @@ static void bay_notify(struct ibm_struct *ibm, u32 event)
3826{ 4395{
3827 acpi_bus_generate_proc_event(ibm->acpi->device, event, 0); 4396 acpi_bus_generate_proc_event(ibm->acpi->device, event, 0);
3828 acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, 4397 acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
3829 ibm->acpi->device->dev.bus_id, 4398 dev_name(&ibm->acpi->device->dev),
3830 event, 0); 4399 event, 0);
3831} 4400}
3832 4401
@@ -4850,7 +5419,7 @@ static int brightness_set(int value)
4850 value < 0) 5419 value < 0)
4851 return -EINVAL; 5420 return -EINVAL;
4852 5421
4853 res = mutex_lock_interruptible(&brightness_mutex); 5422 res = mutex_lock_killable(&brightness_mutex);
4854 if (res < 0) 5423 if (res < 0)
4855 return res; 5424 return res;
4856 5425
@@ -5334,6 +5903,60 @@ TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */
5334 ); /* all others */ 5903 ); /* all others */
5335 5904
5336/* 5905/*
5906 * Unitialized HFSP quirk: ACPI DSDT and EC fail to initialize the
5907 * HFSP register at boot, so it contains 0x07 but the Thinkpad could
5908 * be in auto mode (0x80).
5909 *
5910 * This is corrected by any write to HFSP either by the driver, or
5911 * by the firmware.
5912 *
5913 * We assume 0x07 really means auto mode while this quirk is active,
5914 * as this is far more likely than the ThinkPad being in level 7,
5915 * which is only used by the firmware during thermal emergencies.
5916 */
5917
5918static void fan_quirk1_detect(void)
5919{
5920 /* In some ThinkPads, neither the EC nor the ACPI
5921 * DSDT initialize the HFSP register, and it ends up
5922 * being initially set to 0x07 when it *could* be
5923 * either 0x07 or 0x80.
5924 *
5925 * Enable for TP-1Y (T43), TP-78 (R51e),
5926 * TP-76 (R52), TP-70 (T43, R52), which are known
5927 * to be buggy. */
5928 if (fan_control_initial_status == 0x07) {
5929 switch (thinkpad_id.ec_model) {
5930 case 0x5931: /* TP-1Y */
5931 case 0x3837: /* TP-78 */
5932 case 0x3637: /* TP-76 */
5933 case 0x3037: /* TP-70 */
5934 printk(TPACPI_NOTICE
5935 "fan_init: initial fan status is unknown, "
5936 "assuming it is in auto mode\n");
5937 tp_features.fan_ctrl_status_undef = 1;
5938 ;;
5939 }
5940 }
5941}
5942
5943static void fan_quirk1_handle(u8 *fan_status)
5944{
5945 if (unlikely(tp_features.fan_ctrl_status_undef)) {
5946 if (*fan_status != fan_control_initial_status) {
5947 /* something changed the HFSP regisnter since
5948 * driver init time, so it is not undefined
5949 * anymore */
5950 tp_features.fan_ctrl_status_undef = 0;
5951 } else {
5952 /* Return most likely status. In fact, it
5953 * might be the only possible status */
5954 *fan_status = TP_EC_FAN_AUTO;
5955 }
5956 }
5957}
5958
5959/*
5337 * Call with fan_mutex held 5960 * Call with fan_mutex held
5338 */ 5961 */
5339static void fan_update_desired_level(u8 status) 5962static void fan_update_desired_level(u8 status)
@@ -5371,8 +5994,10 @@ static int fan_get_status(u8 *status)
5371 if (unlikely(!acpi_ec_read(fan_status_offset, &s))) 5994 if (unlikely(!acpi_ec_read(fan_status_offset, &s)))
5372 return -EIO; 5995 return -EIO;
5373 5996
5374 if (likely(status)) 5997 if (likely(status)) {
5375 *status = s; 5998 *status = s;
5999 fan_quirk1_handle(status);
6000 }
5376 6001
5377 break; 6002 break;
5378 6003
@@ -5388,7 +6013,7 @@ static int fan_get_status_safe(u8 *status)
5388 int rc; 6013 int rc;
5389 u8 s; 6014 u8 s;
5390 6015
5391 if (mutex_lock_interruptible(&fan_mutex)) 6016 if (mutex_lock_killable(&fan_mutex))
5392 return -ERESTARTSYS; 6017 return -ERESTARTSYS;
5393 rc = fan_get_status(&s); 6018 rc = fan_get_status(&s);
5394 if (!rc) 6019 if (!rc)
@@ -5471,7 +6096,7 @@ static int fan_set_level_safe(int level)
5471 if (!fan_control_allowed) 6096 if (!fan_control_allowed)
5472 return -EPERM; 6097 return -EPERM;
5473 6098
5474 if (mutex_lock_interruptible(&fan_mutex)) 6099 if (mutex_lock_killable(&fan_mutex))
5475 return -ERESTARTSYS; 6100 return -ERESTARTSYS;
5476 6101
5477 if (level == TPACPI_FAN_LAST_LEVEL) 6102 if (level == TPACPI_FAN_LAST_LEVEL)
@@ -5493,7 +6118,7 @@ static int fan_set_enable(void)
5493 if (!fan_control_allowed) 6118 if (!fan_control_allowed)
5494 return -EPERM; 6119 return -EPERM;
5495 6120
5496 if (mutex_lock_interruptible(&fan_mutex)) 6121 if (mutex_lock_killable(&fan_mutex))
5497 return -ERESTARTSYS; 6122 return -ERESTARTSYS;
5498 6123
5499 switch (fan_control_access_mode) { 6124 switch (fan_control_access_mode) {
@@ -5548,7 +6173,7 @@ static int fan_set_disable(void)
5548 if (!fan_control_allowed) 6173 if (!fan_control_allowed)
5549 return -EPERM; 6174 return -EPERM;
5550 6175
5551 if (mutex_lock_interruptible(&fan_mutex)) 6176 if (mutex_lock_killable(&fan_mutex))
5552 return -ERESTARTSYS; 6177 return -ERESTARTSYS;
5553 6178
5554 rc = 0; 6179 rc = 0;
@@ -5586,7 +6211,7 @@ static int fan_set_speed(int speed)
5586 if (!fan_control_allowed) 6211 if (!fan_control_allowed)
5587 return -EPERM; 6212 return -EPERM;
5588 6213
5589 if (mutex_lock_interruptible(&fan_mutex)) 6214 if (mutex_lock_killable(&fan_mutex))
5590 return -ERESTARTSYS; 6215 return -ERESTARTSYS;
5591 6216
5592 rc = 0; 6217 rc = 0;
@@ -5682,16 +6307,6 @@ static ssize_t fan_pwm1_enable_show(struct device *dev,
5682 if (res) 6307 if (res)
5683 return res; 6308 return res;
5684 6309
5685 if (unlikely(tp_features.fan_ctrl_status_undef)) {
5686 if (status != fan_control_initial_status) {
5687 tp_features.fan_ctrl_status_undef = 0;
5688 } else {
5689 /* Return most likely status. In fact, it
5690 * might be the only possible status */
5691 status = TP_EC_FAN_AUTO;
5692 }
5693 }
5694
5695 if (status & TP_EC_FAN_FULLSPEED) { 6310 if (status & TP_EC_FAN_FULLSPEED) {
5696 mode = 0; 6311 mode = 0;
5697 } else if (status & TP_EC_FAN_AUTO) { 6312 } else if (status & TP_EC_FAN_AUTO) {
@@ -5756,14 +6371,6 @@ static ssize_t fan_pwm1_show(struct device *dev,
5756 if (res) 6371 if (res)
5757 return res; 6372 return res;
5758 6373
5759 if (unlikely(tp_features.fan_ctrl_status_undef)) {
5760 if (status != fan_control_initial_status) {
5761 tp_features.fan_ctrl_status_undef = 0;
5762 } else {
5763 status = TP_EC_FAN_AUTO;
5764 }
5765 }
5766
5767 if ((status & 6374 if ((status &
5768 (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) 6375 (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0)
5769 status = fan_control_desired_level; 6376 status = fan_control_desired_level;
@@ -5788,7 +6395,7 @@ static ssize_t fan_pwm1_store(struct device *dev,
5788 /* scale down from 0-255 to 0-7 */ 6395 /* scale down from 0-255 to 0-7 */
5789 newlevel = (s >> 5) & 0x07; 6396 newlevel = (s >> 5) & 0x07;
5790 6397
5791 if (mutex_lock_interruptible(&fan_mutex)) 6398 if (mutex_lock_killable(&fan_mutex))
5792 return -ERESTARTSYS; 6399 return -ERESTARTSYS;
5793 6400
5794 rc = fan_get_status(&status); 6401 rc = fan_get_status(&status);
@@ -5895,29 +6502,7 @@ static int __init fan_init(struct ibm_init_struct *iibm)
5895 if (likely(acpi_ec_read(fan_status_offset, 6502 if (likely(acpi_ec_read(fan_status_offset,
5896 &fan_control_initial_status))) { 6503 &fan_control_initial_status))) {
5897 fan_status_access_mode = TPACPI_FAN_RD_TPEC; 6504 fan_status_access_mode = TPACPI_FAN_RD_TPEC;
5898 6505 fan_quirk1_detect();
5899 /* In some ThinkPads, neither the EC nor the ACPI
5900 * DSDT initialize the fan status, and it ends up
5901 * being set to 0x07 when it *could* be either
5902 * 0x07 or 0x80.
5903 *
5904 * Enable for TP-1Y (T43), TP-78 (R51e),
5905 * TP-76 (R52), TP-70 (T43, R52), which are known
5906 * to be buggy. */
5907 if (fan_control_initial_status == 0x07) {
5908 switch (thinkpad_id.ec_model) {
5909 case 0x5931: /* TP-1Y */
5910 case 0x3837: /* TP-78 */
5911 case 0x3637: /* TP-76 */
5912 case 0x3037: /* TP-70 */
5913 printk(TPACPI_NOTICE
5914 "fan_init: initial fan status "
5915 "is unknown, assuming it is "
5916 "in auto mode\n");
5917 tp_features.fan_ctrl_status_undef = 1;
5918 ;;
5919 }
5920 }
5921 } else { 6506 } else {
5922 printk(TPACPI_ERR 6507 printk(TPACPI_ERR
5923 "ThinkPad ACPI EC access misbehaving, " 6508 "ThinkPad ACPI EC access misbehaving, "
@@ -6106,15 +6691,6 @@ static int fan_read(char *p)
6106 if (rc < 0) 6691 if (rc < 0)
6107 return rc; 6692 return rc;
6108 6693
6109 if (unlikely(tp_features.fan_ctrl_status_undef)) {
6110 if (status != fan_control_initial_status)
6111 tp_features.fan_ctrl_status_undef = 0;
6112 else
6113 /* Return most likely status. In fact, it
6114 * might be the only possible status */
6115 status = TP_EC_FAN_AUTO;
6116 }
6117
6118 len += sprintf(p + len, "status:\t\t%s\n", 6694 len += sprintf(p + len, "status:\t\t%s\n",
6119 (status != 0) ? "enabled" : "disabled"); 6695 (status != 0) ? "enabled" : "disabled");
6120 6696
@@ -6563,6 +7139,10 @@ static struct ibm_init_struct ibms_init[] __initdata = {
6563 .init = wan_init, 7139 .init = wan_init,
6564 .data = &wan_driver_data, 7140 .data = &wan_driver_data,
6565 }, 7141 },
7142 {
7143 .init = uwb_init,
7144 .data = &uwb_driver_data,
7145 },
6566#ifdef CONFIG_THINKPAD_ACPI_VIDEO 7146#ifdef CONFIG_THINKPAD_ACPI_VIDEO
6567 { 7147 {
6568 .init = video_init, 7148 .init = video_init,
@@ -6701,6 +7281,32 @@ TPACPI_PARAM(brightness);
6701TPACPI_PARAM(volume); 7281TPACPI_PARAM(volume);
6702TPACPI_PARAM(fan); 7282TPACPI_PARAM(fan);
6703 7283
7284#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
7285module_param(dbg_wlswemul, uint, 0);
7286MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation");
7287module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0);
7288MODULE_PARM_DESC(wlsw_state,
7289 "Initial state of the emulated WLSW switch");
7290
7291module_param(dbg_bluetoothemul, uint, 0);
7292MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation");
7293module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0);
7294MODULE_PARM_DESC(bluetooth_state,
7295 "Initial state of the emulated bluetooth switch");
7296
7297module_param(dbg_wwanemul, uint, 0);
7298MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation");
7299module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0);
7300MODULE_PARM_DESC(wwan_state,
7301 "Initial state of the emulated WWAN switch");
7302
7303module_param(dbg_uwbemul, uint, 0);
7304MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation");
7305module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0);
7306MODULE_PARM_DESC(uwb_state,
7307 "Initial state of the emulated UWB switch");
7308#endif
7309
6704static void thinkpad_acpi_module_exit(void) 7310static void thinkpad_acpi_module_exit(void)
6705{ 7311{
6706 struct ibm_struct *ibm, *itmp; 7312 struct ibm_struct *ibm, *itmp;
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-23 17:53:11 -0500