diff options
Diffstat (limited to 'drivers/platform/x86/thinkpad_acpi.c')
| -rw-r--r-- | drivers/platform/x86/thinkpad_acpi.c | 970 |
1 files changed, 714 insertions, 256 deletions
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index e8560085250..3910f2f3ead 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -22,7 +22,7 @@ */ #define TPACPI_VERSION "0.23" -#define TPACPI_SYSFS_VERSION 0x020400 +#define TPACPI_SYSFS_VERSION 0x020500 /* * Changelog: @@ -145,6 +145,51 @@ enum { TP_ACPI_WGSV_STATE_UWBPWR = 0x0020, /* UWB radio enabled */ }; +/* HKEY events */ +enum tpacpi_hkey_event_t { + /* Hotkey-related */ + TP_HKEY_EV_HOTKEY_BASE = 0x1001, /* first hotkey (FN+F1) */ + TP_HKEY_EV_BRGHT_UP = 0x1010, /* Brightness up */ + TP_HKEY_EV_BRGHT_DOWN = 0x1011, /* Brightness down */ + TP_HKEY_EV_VOL_UP = 0x1015, /* Volume up or unmute */ + TP_HKEY_EV_VOL_DOWN = 0x1016, /* Volume down or unmute */ + TP_HKEY_EV_VOL_MUTE = 0x1017, /* Mixer output mute */ + + /* Reasons for waking up from S3/S4 */ + TP_HKEY_EV_WKUP_S3_UNDOCK = 0x2304, /* undock requested, S3 */ + TP_HKEY_EV_WKUP_S4_UNDOCK = 0x2404, /* undock requested, S4 */ + TP_HKEY_EV_WKUP_S3_BAYEJ = 0x2305, /* bay ejection req, S3 */ + TP_HKEY_EV_WKUP_S4_BAYEJ = 0x2405, /* bay ejection req, S4 */ + TP_HKEY_EV_WKUP_S3_BATLOW = 0x2313, /* battery empty, S3 */ + TP_HKEY_EV_WKUP_S4_BATLOW = 0x2413, /* battery empty, S4 */ + + /* Auto-sleep after eject request */ + TP_HKEY_EV_BAYEJ_ACK = 0x3003, /* bay ejection complete */ + TP_HKEY_EV_UNDOCK_ACK = 0x4003, /* undock complete */ + + /* Misc bay events */ + TP_HKEY_EV_OPTDRV_EJ = 0x3006, /* opt. drive tray ejected */ + + /* User-interface events */ + TP_HKEY_EV_LID_CLOSE = 0x5001, /* laptop lid closed */ + TP_HKEY_EV_LID_OPEN = 0x5002, /* laptop lid opened */ + TP_HKEY_EV_TABLET_TABLET = 0x5009, /* tablet swivel up */ + TP_HKEY_EV_TABLET_NOTEBOOK = 0x500a, /* tablet swivel down */ + TP_HKEY_EV_PEN_INSERTED = 0x500b, /* tablet pen inserted */ + TP_HKEY_EV_PEN_REMOVED = 0x500c, /* tablet pen removed */ + TP_HKEY_EV_BRGHT_CHANGED = 0x5010, /* backlight control event */ + + /* Thermal events */ + TP_HKEY_EV_ALARM_BAT_HOT = 0x6011, /* battery too hot */ + TP_HKEY_EV_ALARM_BAT_XHOT = 0x6012, /* battery critically hot */ + TP_HKEY_EV_ALARM_SENSOR_HOT = 0x6021, /* sensor too hot */ + TP_HKEY_EV_ALARM_SENSOR_XHOT = 0x6022, /* sensor critically hot */ + TP_HKEY_EV_THM_TABLE_CHANGED = 0x6030, /* thermal table changed */ + + /* Misc */ + TP_HKEY_EV_RFKILL_CHANGED = 0x7000, /* rfkill switch changed */ +}; + /**************************************************************************** * Main driver */ @@ -1278,6 +1323,7 @@ static void tpacpi_destroy_rfkill(const enum tpacpi_rfk_id id) tp_rfk = tpacpi_rfkill_switches[id]; if (tp_rfk) { rfkill_unregister(tp_rfk->rfkill); + rfkill_destroy(tp_rfk->rfkill); tpacpi_rfkill_switches[id] = NULL; kfree(tp_rfk); } @@ -1601,6 +1647,196 @@ static void tpacpi_remove_driver_attributes(struct device_driver *drv) #endif } +/************************************************************************* + * Firmware Data + */ + +/* + * Table of recommended minimum BIOS versions + * + * Reasons for listing: + * 1. Stable BIOS, listed because the unknown ammount of + * bugs and bad ACPI behaviour on older versions + * + * 2. BIOS or EC fw with known bugs that trigger on Linux + * + * 3. BIOS with known reduced functionality in older versions + * + * We recommend the latest BIOS and EC version. + * We only support the latest BIOS and EC fw version as a rule. + * + * Sources: IBM ThinkPad Public Web Documents (update changelogs), + * Information from users in ThinkWiki + * + * WARNING: we use this table also to detect that the machine is + * a ThinkPad in some cases, so don't remove entries lightly. + */ + +#define TPV_Q(__v, __id1, __id2, __bv1, __bv2) \ + { .vendor = (__v), \ + .bios = TPID(__id1, __id2), \ + .ec = TPACPI_MATCH_ANY, \ + .quirks = TPACPI_MATCH_ANY << 16 \ + | (__bv1) << 8 | (__bv2) } + +#define TPV_Q_X(__v, __bid1, __bid2, __bv1, __bv2, \ + __eid1, __eid2, __ev1, __ev2) \ + { .vendor = (__v), \ + .bios = TPID(__bid1, __bid2), \ + .ec = TPID(__eid1, __eid2), \ + .quirks = (__ev1) << 24 | (__ev2) << 16 \ + | (__bv1) << 8 | (__bv2) } + +#define TPV_QI0(__id1, __id2, __bv1, __bv2) \ + TPV_Q(PCI_VENDOR_ID_IBM, __id1, __id2, __bv1, __bv2) + +#define TPV_QI1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ + TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ + __bv1, __bv2, __id1, __id2, __ev1, __ev2) + +#define TPV_QI2(__bid1, __bid2, __bv1, __bv2, \ + __eid1, __eid2, __ev1, __ev2) \ + TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ + __bv1, __bv2, __eid1, __eid2, __ev1, __ev2) + +#define TPV_QL0(__id1, __id2, __bv1, __bv2) \ + TPV_Q(PCI_VENDOR_ID_LENOVO, __id1, __id2, __bv1, __bv2) + +#define TPV_QL1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ + TPV_Q_X(PCI_VENDOR_ID_LENOVO, __id1, __id2, \ + __bv1, __bv2, __id1, __id2, __ev1, __ev2) + +#define TPV_QL2(__bid1, __bid2, __bv1, __bv2, \ + __eid1, __eid2, __ev1, __ev2) \ + TPV_Q_X(PCI_VENDOR_ID_LENOVO, __bid1, __bid2, \ + __bv1, __bv2, __eid1, __eid2, __ev1, __ev2) + +static const struct tpacpi_quirk tpacpi_bios_version_qtable[] __initconst = { + /* Numeric models ------------------ */ + /* FW MODEL BIOS VERS */ + TPV_QI0('I', 'M', '6', '5'), /* 570 */ + TPV_QI0('I', 'U', '2', '6'), /* 570E */ + TPV_QI0('I', 'B', '5', '4'), /* 600 */ + TPV_QI0('I', 'H', '4', '7'), /* 600E */ + TPV_QI0('I', 'N', '3', '6'), /* 600E */ + TPV_QI0('I', 'T', '5', '5'), /* 600X */ + TPV_QI0('I', 'D', '4', '8'), /* 770, 770E, 770ED */ + TPV_QI0('I', 'I', '4', '2'), /* 770X */ + TPV_QI0('I', 'O', '2', '3'), /* 770Z */ + + /* A-series ------------------------- */ + /* FW MODEL BIOS VERS EC VERS */ + TPV_QI0('I', 'W', '5', '9'), /* A20m */ + TPV_QI0('I', 'V', '6', '9'), /* A20p */ + TPV_QI0('1', '0', '2', '6'), /* A21e, A22e */ + TPV_QI0('K', 'U', '3', '6'), /* A21e */ + TPV_QI0('K', 'X', '3', '6'), /* A21m, A22m */ + TPV_QI0('K', 'Y', '3', '8'), /* A21p, A22p */ + TPV_QI0('1', 'B', '1', '7'), /* A22e */ + TPV_QI0('1', '3', '2', '0'), /* A22m */ + TPV_QI0('1', 'E', '7', '3'), /* A30/p (0) */ + TPV_QI1('1', 'G', '4', '1', '1', '7'), /* A31/p (0) */ + TPV_QI1('1', 'N', '1', '6', '0', '7'), /* A31/p (0) */ + + /* G-series ------------------------- */ + /* FW MODEL BIOS VERS */ + TPV_QI0('1', 'T', 'A', '6'), /* G40 */ + TPV_QI0('1', 'X', '5', '7'), /* G41 */ + + /* R-series, T-series --------------- */ + /* FW MODEL BIOS VERS EC VERS */ + TPV_QI0('1', 'C', 'F', '0'), /* R30 */ + TPV_QI0('1', 'F', 'F', '1'), /* R31 */ + TPV_QI0('1', 'M', '9', '7'), /* R32 */ + TPV_QI0('1', 'O', '6', '1'), /* R40 */ + TPV_QI0('1', 'P', '6', '5'), /* R40 */ + TPV_QI0('1', 'S', '7', '0'), /* R40e */ + TPV_QI1('1', 'R', 'D', 'R', '7', '1'), /* R50/p, R51, + T40/p, T41/p, T42/p (1) */ + TPV_QI1('1', 'V', '7', '1', '2', '8'), /* R50e, R51 (1) */ + TPV_QI1('7', '8', '7', '1', '0', '6'), /* R51e (1) */ + TPV_QI1('7', '6', '6', '9', '1', '6'), /* R52 (1) */ + TPV_QI1('7', '0', '6', '9', '2', '8'), /* R52, T43 (1) */ + + TPV_QI0('I', 'Y', '6', '1'), /* T20 */ + TPV_QI0('K', 'Z', '3', '4'), /* T21 */ + TPV_QI0('1', '6', '3', '2'), /* T22 */ + TPV_QI1('1', 'A', '6', '4', '2', '3'), /* T23 (0) */ + TPV_QI1('1', 'I', '7', '1', '2', '0'), /* T30 (0) */ + TPV_QI1('1', 'Y', '6', '5', '2', '9'), /* T43/p (1) */ + + TPV_QL1('7', '9', 'E', '3', '5', '0'), /* T60/p */ + TPV_QL1('7', 'C', 'D', '2', '2', '2'), /* R60, R60i */ + TPV_QL0('7', 'E', 'D', '0'), /* R60e, R60i */ + + /* BIOS FW BIOS VERS EC FW EC VERS */ + TPV_QI2('1', 'W', '9', '0', '1', 'V', '2', '8'), /* R50e (1) */ + TPV_QL2('7', 'I', '3', '4', '7', '9', '5', '0'), /* T60/p wide */ + + /* X-series ------------------------- */ + /* FW MODEL BIOS VERS EC VERS */ + TPV_QI0('I', 'Z', '9', 'D'), /* X20, X21 */ + TPV_QI0('1', 'D', '7', '0'), /* X22, X23, X24 */ + TPV_QI1('1', 'K', '4', '8', '1', '8'), /* X30 (0) */ + TPV_QI1('1', 'Q', '9', '7', '2', '3'), /* X31, X32 (0) */ + TPV_QI1('1', 'U', 'D', '3', 'B', '2'), /* X40 (0) */ + TPV_QI1('7', '4', '6', '4', '2', '7'), /* X41 (0) */ + TPV_QI1('7', '5', '6', '0', '2', '0'), /* X41t (0) */ + + TPV_QL0('7', 'B', 'D', '7'), /* X60/s */ + TPV_QL0('7', 'J', '3', '0'), /* X60t */ + + /* (0) - older versions lack DMI EC fw string and functionality */ + /* (1) - older versions known to lack functionality */ +}; + +#undef TPV_QL1 +#undef TPV_QL0 +#undef TPV_QI2 +#undef TPV_QI1 +#undef TPV_QI0 +#undef TPV_Q_X +#undef TPV_Q + +static void __init tpacpi_check_outdated_fw(void) +{ + unsigned long fwvers; + u16 ec_version, bios_version; + + fwvers = tpacpi_check_quirks(tpacpi_bios_version_qtable, + ARRAY_SIZE(tpacpi_bios_version_qtable)); + + if (!fwvers) + return; + + bios_version = fwvers & 0xffffU; + ec_version = (fwvers >> 16) & 0xffffU; + + /* note that unknown versions are set to 0x0000 and we use that */ + if ((bios_version > thinkpad_id.bios_release) || + (ec_version > thinkpad_id.ec_release && + ec_version != TPACPI_MATCH_ANY)) { + /* + * The changelogs would let us track down the exact + * reason, but it is just too much of a pain to track + * it. We only list BIOSes that are either really + * broken, or really stable to begin with, so it is + * best if the user upgrades the firmware anyway. + */ + printk(TPACPI_WARN + "WARNING: Outdated ThinkPad BIOS/EC firmware\n"); + printk(TPACPI_WARN + "WARNING: This firmware may be missing critical bug " + "fixes and/or important features\n"); + } +} + +static bool __init tpacpi_is_fw_known(void) +{ + return tpacpi_check_quirks(tpacpi_bios_version_qtable, + ARRAY_SIZE(tpacpi_bios_version_qtable)) != 0; +} + /**************************************************************************** **************************************************************************** * @@ -1634,6 +1870,7 @@ static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) (thinkpad_id.nummodel_str) ? thinkpad_id.nummodel_str : "unknown"); + tpacpi_check_outdated_fw(); return 0; } @@ -1656,6 +1893,27 @@ static struct ibm_struct thinkpad_acpi_driver_data = { * Hotkey subdriver */ +/* + * ThinkPad firmware event model + * + * The ThinkPad firmware has two main event interfaces: normal ACPI + * notifications (which follow the ACPI standard), and a private event + * interface. + * + * The private event interface also issues events for the hotkeys. As + * the driver gained features, the event handling code ended up being + * built around the hotkey subdriver. This will need to be refactored + * to a more formal event API eventually. + * + * Some "hotkeys" are actually supposed to be used as event reports, + * such as "brightness has changed", "volume has changed", depending on + * the ThinkPad model and how the firmware is operating. + * + * Unlike other classes, hotkey-class events have mask/unmask control on + * non-ancient firmware. However, how it behaves changes a lot with the + * firmware model and version. + */ + enum { /* hot key scan codes (derived from ACPI DSDT) */ TP_ACPI_HOTKEYSCAN_FNF1 = 0, TP_ACPI_HOTKEYSCAN_FNF2, @@ -1683,7 +1941,7 @@ enum { /* hot key scan codes (derived from ACPI DSDT) */ TP_ACPI_HOTKEYSCAN_THINKPAD, }; -enum { /* Keys available through NVRAM polling */ +enum { /* Keys/events available through NVRAM polling */ TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, }; @@ -1731,16 +1989,50 @@ struct tp_nvram_state { u8 volume_level; }; +/* kthread for the hotkey poller */ 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 */ + +/* Acquired while the poller kthread is running, use to sync start/stop */ static struct mutex hotkey_thread_mutex; + +/* + * Acquire mutex to write poller control variables as an + * atomic block. + * + * Increment hotkey_config_change when changing them if you + * want the kthread to forget old state. + * + * See HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END + */ static struct mutex hotkey_thread_data_mutex; static unsigned int hotkey_config_change; +/* + * hotkey poller control variables + * + * Must be atomic or readers will also need to acquire mutex + * + * HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END + * should be used only when the changes need to be taken as + * a block, OR when one needs to force the kthread to forget + * old state. + */ +static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ +static unsigned int hotkey_poll_freq = 10; /* Hz */ + +#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 /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ #define hotkey_source_mask 0U +#define HOTKEY_CONFIG_CRITICAL_START +#define HOTKEY_CONFIG_CRITICAL_END #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ @@ -1754,10 +2046,12 @@ static enum { /* Reasons for waking up */ static int hotkey_autosleep_ack; -static u32 hotkey_orig_mask; -static u32 hotkey_all_mask; -static u32 hotkey_reserved_mask; -static u32 hotkey_mask; +static u32 hotkey_orig_mask; /* events the BIOS had enabled */ +static u32 hotkey_all_mask; /* all events supported in fw */ +static u32 hotkey_reserved_mask; /* events better left disabled */ +static u32 hotkey_driver_mask; /* events needed by the driver */ +static u32 hotkey_user_mask; /* events visible to userspace */ +static u32 hotkey_acpi_mask; /* events enabled in firmware */ static unsigned int hotkey_report_mode; @@ -1765,18 +2059,8 @@ 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 void tpacpi_driver_event(const unsigned int hkey_event); +static void hotkey_driver_event(const unsigned int scancode); /* HKEY.MHKG() return bits */ #define TP_HOTKEY_TABLET_MASK (1 << 3) @@ -1812,22 +2096,53 @@ static int hotkey_get_tablet_mode(int *status) } /* + * Reads current event mask from firmware, and updates + * hotkey_acpi_mask accordingly. Also resets any bits + * from hotkey_user_mask that are unavailable to be + * delivered (shadow requirement of the userspace ABI). + * * Call with hotkey_mutex held */ static int hotkey_mask_get(void) { - u32 m = 0; - if (tp_features.hotkey_mask) { + u32 m = 0; + if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) return -EIO; + + hotkey_acpi_mask = m; + } else { + /* no mask support doesn't mean no event support... */ + hotkey_acpi_mask = hotkey_all_mask; } - hotkey_mask = m | (hotkey_source_mask & hotkey_mask); + + /* sync userspace-visible mask */ + hotkey_user_mask &= (hotkey_acpi_mask | hotkey_source_mask); return 0; } +void static hotkey_mask_warn_incomplete_mask(void) +{ + /* log only what the user can fix... */ + const u32 wantedmask = hotkey_driver_mask & + ~(hotkey_acpi_mask | hotkey_source_mask) & + (hotkey_all_mask | TPACPI_HKEY_NVRAM_KNOWN_MASK); + + if (wantedmask) + printk(TPACPI_NOTICE + "required events 0x%08x not enabled!\n", + wantedmask); +} + /* + * Set the firmware mask when supported + * + * Also calls hotkey_mask_get to update hotkey_acpi_mask. + * + * NOTE: does not set bits in hotkey_user_mask, but may reset them. + * * Call with hotkey_mutex held */ static int hotkey_mask_set(u32 mask) @@ -1835,66 +2150,98 @@ static int hotkey_mask_set(u32 mask) int i; int rc = 0; - if (tp_features.hotkey_mask) { - if (!tp_warned.hotkey_mask_ff && - (mask == 0xffff || mask == 0xffffff || - mask == 0xffffffff)) { - tp_warned.hotkey_mask_ff = 1; - printk(TPACPI_NOTICE - "setting the hotkey mask to 0x%08x is likely " - "not the best way to go about it\n", mask); - printk(TPACPI_NOTICE - "please consider using the driver defaults, " - "and refer to up-to-date thinkpad-acpi " - "documentation\n"); - } + const u32 fwmask = mask & ~hotkey_source_mask; - HOTKEY_CONFIG_CRITICAL_START + if (tp_features.hotkey_mask) { 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))) { + !!(mask & (1 << i)))) { 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 */ + /* + * We *must* make an inconditional call to hotkey_mask_get to + * refresh hotkey_acpi_mask and update hotkey_user_mask + * + * Take the opportunity to also log when we cannot _enable_ + * a given event. + */ + if (!hotkey_mask_get() && !rc && (fwmask & ~hotkey_acpi_mask)) { + printk(TPACPI_NOTICE + "asked for hotkey mask 0x%08x, but " + "firmware forced it to 0x%08x\n", + fwmask, hotkey_acpi_mask); } + hotkey_mask_warn_incomplete_mask(); + + return rc; +} + +/* + * Sets hotkey_user_mask and tries to set the firmware mask + * + * Call with hotkey_mutex held + */ +static int hotkey_user_mask_set(const u32 mask) +{ + int rc; + + /* Give people a chance to notice they are doing something that + * is bound to go boom on their users sooner or later */ + if (!tp_warned.hotkey_mask_ff && + (mask == 0xffff || mask == 0xffffff || + mask == 0xffffffff)) { + tp_warned.hotkey_mask_ff = 1; + printk(TPACPI_NOTICE + "setting the hotkey mask to 0x%08x is likely " + "not the best way to go about it\n", mask); + printk(TPACPI_NOTICE + "please consider using the driver defaults, " + "and refer to up-to-date thinkpad-acpi " + "documentation\n"); + } + + /* Try to enable what the user asked for, plus whatever we need. + * this syncs everything but won't enable bits in hotkey_user_mask */ + rc = hotkey_mask_set((mask | hotkey_driver_mask) & ~hotkey_source_mask); + + /* Enable the available bits in hotkey_user_mask */ + hotkey_user_mask = mask & (hotkey_acpi_mask | hotkey_source_mask); + + return rc; +} + +/* + * Sets the driver hotkey mask. + * + * Can be called even if the hotkey subdriver is inactive + */ +static int tpacpi_hotkey_driver_mask_set(const u32 mask) +{ + int rc; + + /* Do the right thing if hotkey_init has not been called yet */ + if (!tp_features.hotkey) { + hotkey_driver_mask = mask; + return 0; + } + + mutex_lock(&hotkey_mutex); + + HOTKEY_CONFIG_CRITICAL_START + hotkey_driver_mask = mask; + hotkey_source_mask |= (mask & ~hotkey_all_mask); + HOTKEY_CONFIG_CRITICAL_END + + rc = hotkey_mask_set((hotkey_acpi_mask | hotkey_driver_mask) & + ~hotkey_source_mask); + mutex_unlock(&hotkey_mutex); + return rc; } @@ -1930,11 +2277,10 @@ static void tpacpi_input_send_tabletsw(void) } } -static void tpacpi_input_send_key(unsigned int scancode) +/* Do NOT call without validating scancode first */ +static void tpacpi_input_send_key(const unsigned int scancode) { - unsigned int keycode; - - keycode = hotkey_keycode_map[scancode]; + const unsigned int keycode = hotkey_keycode_map[scancode]; if (keycode != KEY_RESERVED) { mutex_lock(&tpacpi_inputdev_send_mutex); @@ -1955,19 +2301,28 @@ static void tpacpi_input_send_key(unsigned int scancode) } } +/* Do NOT call without validating scancode first */ +static void tpacpi_input_send_key_masked(const unsigned int scancode) +{ + hotkey_driver_event(scancode); + if (hotkey_user_mask & (1 << scancode)) + tpacpi_input_send_key(scancode); +} + #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; +/* Do NOT call without validating scancode first */ static void tpacpi_hotkey_send_key(unsigned int scancode) { - tpacpi_input_send_key(scancode); + tpacpi_input_send_key_masked(scancode); if (hotkey_report_mode < 2) { acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device, - 0x80, 0x1001 + scancode); + 0x80, TP_HKEY_EV_HOTKEY_BASE + scancode); } } -static void hotkey_read_nvram(struct tp_nvram_state *n, u32 m) +static void hotkey_read_nvram(struct tp_nvram_state *n, const u32 m) { u8 d; @@ -2003,21 +2358,24 @@ static void hotkey_read_nvram(struct tp_nvram_state *n, u32 m) } } +static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, + struct tp_nvram_state *newn, + const u32 event_mask) +{ + #define TPACPI_COMPARE_KEY(__scancode, __member) \ do { \ - if ((mask & (1 << __scancode)) && \ + if ((event_mask & (1 << __scancode)) && \ oldn->__member != newn->__member) \ - tpacpi_hotkey_send_key(__scancode); \ + 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) + do { \ + if (event_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); @@ -2063,18 +2421,26 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, } } } -} #undef TPACPI_COMPARE_KEY #undef TPACPI_MAY_SEND_KEY +} +/* + * Polling driver + * + * We track all events in hotkey_source_mask all the time, since + * most of them are edge-based. We only issue those requested by + * hotkey_user_mask or hotkey_driver_mask, though. + */ static int hotkey_kthread(void *data) { struct tp_nvram_state s[2]; - u32 mask; + u32 poll_mask, event_mask; unsigned int si, so; unsigned long t; unsigned int change_detector, must_reset; + unsigned int poll_freq; mutex_lock(&hotkey_thread_mutex); @@ -2090,13 +2456,20 @@ static int hotkey_kthread(void *data) /* Initial state for compares */ mutex_lock(&hotkey_thread_data_mutex); change_detector = hotkey_config_change; - mask = hotkey_source_mask & hotkey_mask; + poll_mask = hotkey_source_mask; + event_mask = hotkey_source_mask & + (hotkey_driver_mask | hotkey_user_mask); + poll_freq = hotkey_poll_freq; mutex_unlock(&hotkey_thread_data_mutex); - hotkey_read_nvram(&s[so], mask); + hotkey_read_nvram(&s[so], poll_mask); - while (!kthread_should_stop() && hotkey_poll_freq) { - if (t == 0) - t = 1000/hotkey_poll_freq; + while (!kthread_should_stop()) { + if (t == 0) { + if (likely(poll_freq)) + t = 1000/poll_freq; + else + t = 100; /* should never happen... */ + } t = msleep_interruptible(t); if (unlikely(kthread_should_stop())) break; @@ -2111,14 +2484,17 @@ static int hotkey_kthread(void *data) t = 0; change_detector = hotkey_config_change; } - mask = hotkey_source_mask & hotkey_mask; + poll_mask = hotkey_source_mask; + event_mask = hotkey_source_mask & + (hotkey_driver_mask | hotkey_user_mask); + poll_freq = hotkey_poll_freq; mutex_unlock(&hotkey_thread_data_mutex); - if (likely(mask)) { - hotkey_read_nvram(&s[si], mask); + if (likely(poll_mask)) { + hotkey_read_nvram(&s[si], poll_mask); if (likely(si != so)) { hotkey_compare_and_issue_event(&s[so], &s[si], - mask); + event_mask); } } @@ -2131,6 +2507,7 @@ exit: return 0; } +/* call with hotkey_mutex held */ static void hotkey_poll_stop_sync(void) { if (tpacpi_hotkey_task) { @@ -2147,11 +2524,14 @@ static void hotkey_poll_stop_sync(void) } /* call with hotkey_mutex held */ -static void hotkey_poll_setup(int may_warn) +static void hotkey_poll_setup(bool may_warn) { - if ((hotkey_source_mask & hotkey_mask) != 0 && - hotkey_poll_freq > 0 && - (tpacpi_inputdev->users > 0 || hotkey_report_mode < 2)) { + const u32 poll_driver_mask = hotkey_driver_mask & hotkey_source_mask; + const u32 poll_user_mask = hotkey_user_mask & hotkey_source_mask; + + if (hotkey_poll_freq > 0 && + (poll_driver_mask || + (poll_user_mask && tpacpi_inputdev->users > 0))) { if (!tpacpi_hotkey_task) { tpacpi_hotkey_task = kthread_run(hotkey_kthread, NULL, TPACPI_NVRAM_KTHREAD_NAME); @@ -2164,26 +2544,36 @@ static void hotkey_poll_setup(int may_warn) } } else { hotkey_poll_stop_sync(); - if (may_warn && - hotkey_source_mask != 0 && hotkey_poll_freq == 0) { + if (may_warn && (poll_driver_mask || poll_user_mask) && + hotkey_poll_freq == 0) { printk(TPACPI_NOTICE - "hot keys 0x%08x require polling, " - "which is currently disabled\n", - hotkey_source_mask); + "hot keys 0x%08x and/or events 0x%08x " + "require polling, which is currently " + "disabled\n", + poll_user_mask, poll_driver_mask); } } } -static void hotkey_poll_setup_safe(int may_warn) +static void hotkey_poll_setup_safe(bool may_warn) { mutex_lock(&hotkey_mutex); hotkey_poll_setup(may_warn); mutex_unlock(&hotkey_mutex); } +/* call with hotkey_mutex held */ +static void hotkey_poll_set_freq(unsigned int freq) +{ + if (!freq) + hotkey_poll_stop_sync(); + + hotkey_poll_freq = freq; +} + #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ -static void hotkey_poll_setup_safe(int __unused) +static void hotkey_poll_setup_safe(bool __unused) { } @@ -2201,7 +2591,7 @@ static int hotkey_inputdev_open(struct input_dev *dev) case TPACPI_LIFE_EXITING: return -EBUSY; case TPACPI_LIFE_RUNNING: - hotkey_poll_setup_safe(0); + hotkey_poll_setup_safe(false); return 0; } @@ -2213,8 +2603,9 @@ static int hotkey_inputdev_open(struct input_dev *dev) 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); + if (tpacpi_lifecycle == TPACPI_LIFE_RUNNING && + !(hotkey_source_mask & hotkey_driver_mask)) + hotkey_poll_setup_safe(false); } /* sysfs hotkey enable ------------------------------------------------- */ @@ -2261,15 +2652,7 @@ static ssize_t hotkey_mask_show(struct device *dev, struct device_attribute *attr, char *buf) { - int res; - - if (mutex_lock_killable(&hotkey_mutex)) - return -ERESTARTSYS; - res = hotkey_mask_get(); - mutex_unlock(&hotkey_mutex); - - return (res)? - res : snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_mask); + return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_user_mask); } static ssize_t hotkey_mask_store(struct device *dev, @@ -2285,10 +2668,10 @@ static ssize_t hotkey_mask_store(struct device *dev, if (mutex_lock_killable(&hotkey_mutex)) return -ERESTARTSYS; - res = hotkey_mask_set(t); + res = hotkey_user_mask_set(t); #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL - hotkey_poll_setup(1); + hotkey_poll_setup(true); #endif mutex_unlock(&hotkey_mutex); @@ -2318,6 +2701,8 @@ static ssize_t hotkey_bios_mask_show(struct device *dev, struct device_attribute *attr, char *buf) { + printk_deprecated_attribute("hotkey_bios_mask", + "This attribute is useless."); return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); } @@ -2365,6 +2750,8 @@ static ssize_t hotkey_source_mask_store(struct device *dev, const char *buf, size_t count) { unsigned long t; + u32 r_ev; + int rc; if (parse_strtoul(buf, 0xffffffffUL, &t) || ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) @@ -2377,13 +2764,28 @@ static ssize_t hotkey_source_mask_store(struct device *dev, hotkey_source_mask = t; HOTKEY_CONFIG_CRITICAL_END - hotkey_poll_setup(1); + rc = hotkey_mask_set((hotkey_user_mask | hotkey_driver_mask) & + ~hotkey_source_mask); + hotkey_poll_setup(true); + + /* check if events needed by the driver got disabled */ + r_ev = hotkey_driver_mask & ~(hotkey_acpi_mask & hotkey_all_mask) + & ~hotkey_source_mask & TPACPI_HKEY_NVRAM_KNOWN_MASK; mutex_unlock(&hotkey_mutex); + if (rc < 0) + printk(TPACPI_ERR "hotkey_source_mask: failed to update the" + "firmware event mask!\n"); + + if (r_ev) + printk(TPACPI_NOTICE "hotkey_source_mask: " + "some important events were disabled: " + "0x%04x\n", r_ev); + tpacpi_disclose_usertask("hotkey_source_mask", "set to 0x%08lx\n", t); - return count; + return (rc < 0) ? rc : count; } static struct device_attribute dev_attr_hotkey_source_mask = @@ -2410,9 +2812,9 @@ static ssize_t hotkey_poll_freq_store(struct device *dev, if (mutex_lock_killable(&hotkey_mutex)) return -ERESTARTSYS; - hotkey_poll_freq = t; + hotkey_poll_set_freq(t); + hotkey_poll_setup(true); - hotkey_poll_setup(1); mutex_unlock(&hotkey_mutex); tpacpi_disclose_usertask("hotkey_poll_freq", "set to %lu\n", t); @@ -2501,9 +2903,8 @@ static struct device_attribute dev_attr_hotkey_wakeup_reason = static void hotkey_wakeup_reason_notify_change(void) { - if (tp_features.hotkey_mask) - sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, - "wakeup_reason"); + sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, + "wakeup_reason"); } /* sysfs wakeup hotunplug_complete (pollable) -------------------------- */ @@ -2520,9 +2921,8 @@ static struct device_attribute dev_attr_hotkey_wakeup_hotunplug_complete = static void hotkey_wakeup_hotunplug_complete_notify_change(void) { - if (tp_features.hotkey_mask) - sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, - "wakeup_hotunplug_complete"); + sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, + "wakeup_hotunplug_complete"); } /* --------------------------------------------------------------------- */ @@ -2530,27 +2930,19 @@ static void hotkey_wakeup_hotunplug_complete_notify_change(void) static struct attribute *hotkey_attributes[] __initdata = { &dev_attr_hotkey_enable.attr, &dev_attr_hotkey_bios_enabled.attr, + &dev_attr_hotkey_bios_mask.attr, &dev_attr_hotkey_report_mode.attr, -#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL + &dev_attr_hotkey_wakeup_reason.attr, + &dev_attr_hotkey_wakeup_hotunplug_complete.attr, &dev_attr_hotkey_mask.attr, &dev_attr_hotkey_all_mask.attr, &dev_attr_hotkey_recommended_mask.attr, +#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL &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, -}; - /* * Sync both the hw and sw blocking state of all switches */ @@ -2603,7 +2995,9 @@ static void tpacpi_send_radiosw_update(void) static void hotkey_exit(void) { #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL + mutex_lock(&hotkey_mutex); hotkey_poll_stop_sync(); + mutex_unlock(&hotkey_mutex); #endif if (hotkey_dev_attributes) @@ -2611,18 +3005,56 @@ static void hotkey_exit(void) kfree(hotkey_keycode_map); - if (tp_features.hotkey) { - dbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_HKEY, - "restoring original hot key mask\n"); - /* no short-circuit boolean operator below! */ - if ((hotkey_mask_set(hotkey_orig_mask) | - hotkey_status_set(false)) != 0) - printk(TPACPI_ERR - "failed to restore hot key mask " - "to BIOS defaults\n"); + dbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_HKEY, + "restoring original HKEY status and mask\n"); + /* yes, there is a bitwise or below, we want the + * functions to be called even if one of them fail */ + if (((tp_features.hotkey_mask && + hotkey_mask_set(hotkey_orig_mask)) | + hotkey_status_set(false)) != 0) + printk(TPACPI_ERR + "failed to restore hot key mask " + "to BIOS defaults\n"); +} + +static void __init hotkey_unmap(const unsigned int scancode) +{ + if (hotkey_keycode_map[scancode] != KEY_RESERVED) { + clear_bit(hotkey_keycode_map[scancode], + tpacpi_inputdev->keybit); + hotkey_keycode_map[scancode] = KEY_RESERVED; } } +/* + * HKEY quirks: + * TPACPI_HK_Q_INIMASK: Supports FN+F3,FN+F4,FN+F12 + */ + +#define TPACPI_HK_Q_INIMASK 0x0001 + +static const struct tpacpi_quirk tpacpi_hotkey_qtable[] __initconst = { + TPACPI_Q_IBM('I', 'H', TPACPI_HK_Q_INIMASK), /* 600E */ + TPACPI_Q_IBM('I', 'N', TPACPI_HK_Q_INIMASK), /* 600E */ + TPACPI_Q_IBM('I', 'D', TPACPI_HK_Q_INIMASK), /* 770, 770E, 770ED */ + TPACPI_Q_IBM('I', 'W', TPACPI_HK_Q_INIMASK), /* A20m */ + TPACPI_Q_IBM('I', 'V', TPACPI_HK_Q_INIMASK), /* A20p */ + TPACPI_Q_IBM('1', '0', TPACPI_HK_Q_INIMASK), /* A21e, A22e */ + TPACPI_Q_IBM('K', 'U', TPACPI_HK_Q_INIMASK), /* A21e */ + TPACPI_Q_IBM('K', 'X', TPACPI_HK_Q_INIMASK), /* A21m, A22m */ + TPACPI_Q_IBM('K', 'Y', TPACPI_HK_Q_INIMASK), /* A21p, A22p */ + TPACPI_Q_IBM('1', 'B', TPACPI_HK_Q_INIMASK), /* A22e */ + TPACPI_Q_IBM('1', '3', TPACPI_HK_Q_INIMASK), /* A22m */ + TPACPI_Q_IBM('1', 'E', TPACPI_HK_Q_INIMASK), /* A30/p (0) */ + TPACPI_Q_IBM('1', 'C', TPACPI_HK_Q_INIMASK), /* R30 */ + TPACPI_Q_IBM('1', 'F', TPACPI_HK_Q_INIMASK), /* R31 */ + TPACPI_Q_IBM('I', 'Y', TPACPI_HK_Q_INIMASK), /* T20 */ + TPACPI_Q_IBM('K', 'Z', TPACPI_HK_Q_INIMASK), /* T21 */ + TPACPI_Q_IBM('1', '6', TPACPI_HK_Q_INIMASK), /* T22 */ + TPACPI_Q_IBM('I', 'Z', TPACPI_HK_Q_INIMASK), /* X20, X21 */ + TPACPI_Q_IBM('1', 'D', TPACPI_HK_Q_INIMASK), /* X22, X23, X24 */ +}; + static int __init hotkey_init(struct ibm_init_struct *iibm) { /* Requirements for changing the default keymaps: @@ -2665,9 +3097,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) 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 */ + /* brightness: firmware always reacts to them */ KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ KEY_RESERVED, /* 0x10: FN+END (brightness down) */ @@ -2701,11 +3131,11 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) KEY_UNKNOWN, /* 0x0D: FN+INSERT */ KEY_UNKNOWN, /* 0x0E: FN+DELETE */ - /* These either have to go through ACPI video, or - * act like in the IBM ThinkPads, so don't ever - * enable them by default */ - KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ - KEY_RESERVED, /* 0x10: FN+END (brightness down) */ + /* These should be enabled --only-- when ACPI video + * is disabled (i.e. in "vendor" mode), and are handled + * in a special way by the init code */ + KEY_BRIGHTNESSUP, /* 0x0F: FN+HOME (brightness up) */ + KEY_BRIGHTNESSDOWN, /* 0x10: FN+END (brightness down) */ KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ @@ -2742,6 +3172,8 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) int status; int hkeyv; + unsigned long quirks; + vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, "initializing hotkey subdriver\n"); @@ -2767,9 +3199,16 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) if (!tp_features.hotkey) return 1; + quirks = tpacpi_check_quirks(tpacpi_hotkey_qtable, + ARRAY_SIZE(tpacpi_hotkey_qtable)); + tpacpi_disable_brightness_delay(); - hotkey_dev_attributes = create_attr_set(13, NULL); + /* MUST have enough space for all attributes to be added to + * hotkey_dev_attributes */ + hotkey_dev_attributes = create_attr_set( + ARRAY_SIZE(hotkey_attributes) + 2, + NULL); if (!hotkey_dev_attributes) return -ENOMEM; res = add_many_to_attr_set(hotkey_dev_attributes, @@ -2778,7 +3217,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) if (res) goto err_exit; - /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, + /* mask not supported on 600e/x, 770e, 770x, A21e, A2xm/p, A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking for HKEY interface version 0x100 */ if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { @@ -2792,10 +3231,22 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) * MHKV 0x100 in A31, R40, R40e, * T4x, X31, and later */ - tp_features.hotkey_mask = 1; vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, "firmware HKEY interface version: 0x%x\n", hkeyv); + + /* Paranoia check AND init hotkey_all_mask */ + if (!acpi_evalf(hkey_handle, &hotkey_all_mask, + "MHKA", "qd")) { + printk(TPACPI_ERR + "missing MHKA handler, " + "please report this to %s\n", + TPACPI_MAIL); + /* Fallback: pre-init for FN+F3,F4,F12 */ + hotkey_all_mask = 0x080cU; + } else { + tp_features.hotkey_mask = 1; + } } } @@ -2803,47 +3254,25 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) "hotkey masks are %s\n", str_supported(tp_features.hotkey_mask)); - if (tp_features.hotkey_mask) { - if (!acpi_evalf(hkey_handle, &hotkey_all_mask, - "MHKA", "qd")) { - printk(TPACPI_ERR - "missing MHKA handler, " - "please report this to %s\n", - TPACPI_MAIL); - /* FN+F12, FN+F4, FN+F3 */ - hotkey_all_mask = 0x080cU; - } - } + /* Init hotkey_all_mask if not initialized yet */ + if (!tp_features.hotkey_mask && !hotkey_all_mask && + (quirks & TPACPI_HK_Q_INIMASK)) + hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ - /* hotkey_source_mask *must* be zero for - * the first hotkey_mask_get */ + /* Init hotkey_acpi_mask and hotkey_orig_mask */ if (tp_features.hotkey_mask) { + /* hotkey_source_mask *must* be zero for + * the first hotkey_mask_get to return hotkey_orig_mask */ res = hotkey_mask_get(); if (res) goto err_exit; - hotkey_orig_mask = hotkey_mask; - res = add_many_to_attr_set( - hotkey_dev_attributes, - hotkey_mask_attributes, - ARRAY_SIZE(hotkey_mask_attributes)); - if (res) - goto err_exit; - } - -#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL - if (tp_features.hotkey_mask) { - hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK - & ~hotkey_all_mask; + hotkey_orig_mask = hotkey_acpi_mask; } else { - hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK; + hotkey_orig_mask = hotkey_all_mask; + hotkey_acpi_mask = hotkey_all_mask; } - vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, - "hotkey source mask 0x%08x, polling freq %d\n", - hotkey_source_mask, hotkey_poll_freq); -#endif - #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES if (dbg_wlswemul) { tp_features.hotkey_wlsw = 1; @@ -2944,17 +3373,26 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) "Disabling thinkpad-acpi brightness events " "by default...\n"); - /* The hotkey_reserved_mask change below is not - * necessary while the keys are at KEY_RESERVED in the - * default map, but better safe than sorry, leave it - * here as a marker of what we have to do, especially - * when we finally become able to set this at runtime - * on response to X.org requests */ + /* Disable brightness up/down on Lenovo thinkpads when + * ACPI is handling them, otherwise it is plain impossible + * for userspace to do something even remotely sane */ hotkey_reserved_mask |= (1 << TP_ACPI_HOTKEYSCAN_FNHOME) | (1 << TP_ACPI_HOTKEYSCAN_FNEND); + hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNHOME); + hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNEND); } +#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL + hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK + & ~hotkey_all_mask + & ~hotkey_reserved_mask; + + vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, + "hotkey source mask 0x%08x, polling freq %u\n", + hotkey_source_mask, hotkey_poll_freq); +#endif + dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, "enabling firmware HKEY event interface...\n"); res = hotkey_status_set(true); @@ -2962,13 +3400,18 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) hotkey_exit(); return res; } - res = hotkey_mask_set(((hotkey_all_mask | hotkey_source_mask) - & ~hotkey_reserved_mask) - | hotkey_orig_mask); + res = hotkey_mask_set(((hotkey_all_mask & ~hotkey_reserved_mask) + | hotkey_driver_mask) + & ~hotkey_source_mask); if (res < 0 && res != -ENXIO) { hotkey_exit(); return res; } + hotkey_user_mask = (hotkey_acpi_mask | hotkey_source_mask) + & ~hotkey_reserved_mask; + vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, + "initial masks: user=0x%08x, fw=0x%08x, poll=0x%08x\n", + hotkey_user_mask, hotkey_acpi_mask, hotkey_source_mask); dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, "legacy ibm/hotkey event reporting over procfs %s\n", @@ -2978,7 +3421,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) tpacpi_inputdev->open = &hotkey_inputdev_open; tpacpi_inputdev->close = &hotkey_inputdev_close; - hotkey_poll_setup_safe(1); + hotkey_poll_setup_safe(true); tpacpi_send_radiosw_update(); tpacpi_input_send_tabletsw(); @@ -3003,7 +3446,7 @@ static bool hotkey_notify_hotkey(const u32 hkey, if (scancode > 0 && scancode < 0x21) { scancode--; if (!(hotkey_source_mask & (1 << scancode))) { - tpacpi_input_send_key(scancode); + tpacpi_input_send_key_masked(scancode); *send_acpi_ev = false; } else { *ignore_acpi_ev = true; @@ -3022,20 +3465,20 @@ static bool hotkey_notify_wakeup(const u32 hkey, *ignore_acpi_ev = false; switch (hkey) { - case 0x2304: /* suspend, undock */ - case 0x2404: /* hibernation, undock */ + case TP_HKEY_EV_WKUP_S3_UNDOCK: /* suspend, undock */ + case TP_HKEY_EV_WKUP_S4_UNDOCK: /* hibernation, undock */ hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; *ignore_acpi_ev = true; break; - case 0x2305: /* suspend, bay eject */ - case 0x2405: /* hibernation, bay eject */ + case TP_HKEY_EV_WKUP_S3_BAYEJ: /* suspend, bay eject */ + case TP_HKEY_EV_WKUP_S4_BAYEJ: /* hibernation, bay eject */ hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; *ignore_acpi_ev = true; break; - case 0x2313: /* Battery on critical low level (S3) */ - case 0x2413: /* Battery on critical low level (S4) */ + case TP_HKEY_EV_WKUP_S3_BATLOW: /* Battery on critical low level/S3 */ + case TP_HKEY_EV_WKUP_S4_BATLOW: /* Battery on critical low level/S4 */ printk(TPACPI_ALERT "EMERGENCY WAKEUP: battery almost empty\n"); /* how to auto-heal: */ @@ -3065,21 +3508,21 @@ static bool hotkey_notify_usrevent(const u32 hkey, *ignore_acpi_ev = false; switch (hkey) { - case 0x5010: /* Lenovo new BIOS: brightness changed */ - case 0x500b: /* X61t: tablet pen inserted into bay */ - case 0x500c: /* X61t: tablet pen removed from bay */ + case TP_HKEY_EV_PEN_INSERTED: /* X61t: tablet pen inserted into bay */ + case TP_HKEY_EV_PEN_REMOVED: /* X61t: tablet pen removed from bay */ return true; - case 0x5009: /* X41t-X61t: swivel up (tablet mode) */ - case 0x500a: /* X41t-X61t: swivel down (normal mode) */ + case TP_HKEY_EV_TABLET_TABLET: /* X41t-X61t: tablet mode */ + case TP_HKEY_EV_TABLET_NOTEBOOK: /* X41t-X61t: normal mode */ tpacpi_input_send_tabletsw(); hotkey_tablet_mode_notify_change(); *send_acpi_ev = false; return true; - case 0x5001: - case 0x5002: - /* LID switch events. Do not propagate */ + case TP_HKEY_EV_LID_CLOSE: /* Lid closed */ + case TP_HKEY_EV_LID_OPEN: /* Lid opened */ + case TP_HKEY_EV_BRGHT_CHANGED: /* brightness changed */ + /* do not propagate these events */ *ignore_acpi_ev = true; return true; @@ -3097,30 +3540,30 @@ static bool hotkey_notify_thermal(const u32 hkey, *ignore_acpi_ev = false; switch (hkey) { - case 0x6011: + case TP_HKEY_EV_ALARM_BAT_HOT: printk(TPACPI_CRIT "THERMAL ALARM: battery is too hot!\n"); /* recommended action: warn user through gui */ return true; - case 0x6012: + case TP_HKEY_EV_ALARM_BAT_XHOT: printk(TPACPI_ALERT "THERMAL EMERGENCY: battery is extremely hot!\n"); /* recommended action: immediate sleep/hibernate */ return true; - case 0x6021: + case TP_HKEY_EV_ALARM_SENSOR_HOT: printk(TPACPI_CRIT "THERMAL ALARM: " "a sensor reports something is too hot!\n"); /* recommended action: warn user through gui, that */ /* some internal component is too hot */ return true; - case 0x6022: + case TP_HKEY_EV_ALARM_SENSOR_XHOT: printk(TPACPI_ALERT "THERMAL EMERGENCY: " "a sensor reports something is extremely hot!\n"); /* recommended action: immediate sleep/hibernate */ return true; - case 0x6030: + case TP_HKEY_EV_THM_TABLE_CHANGED: printk(TPACPI_INFO "EC reports that Thermal Table has changed\n"); /* recommended action: do nothing, we don't have @@ -3178,7 +3621,7 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event) break; case 3: /* 0x3000-0x3FFF: bay-related wakeups */ - if (hkey == 0x3003) { + if (hkey == TP_HKEY_EV_BAYEJ_ACK) { hotkey_autosleep_ack = 1; printk(TPACPI_INFO "bay ejected\n"); @@ -3190,7 +3633,7 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event) break; case 4: /* 0x4000-0x4FFF: dock-related wakeups */ - if (hkey == 0x4003) { + if (hkey == TP_HKEY_EV_UNDOCK_ACK) { hotkey_autosleep_ack = 1; printk(TPACPI_INFO "undocked\n"); @@ -3212,7 +3655,8 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event) break; case 7: /* 0x7000-0x7FFF: misc */ - if (tp_features.hotkey_wlsw && hkey == 0x7000) { + if (tp_features.hotkey_wlsw && + hkey == TP_HKEY_EV_RFKILL_CHANGED) { tpacpi_send_radiosw_update(); send_acpi_ev = 0; known_ev = true; @@ -3258,15 +3702,17 @@ static void hotkey_resume(void) { tpacpi_disable_brightness_delay(); - if (hotkey_mask_get()) + if (hotkey_status_set(true) < 0 || + hotkey_mask_set(hotkey_acpi_mask) < 0) printk(TPACPI_ERR - "error while trying to read hot key mask " - "from firmware\n"); + "error while attempting to reset the event " + "firmware interface\n"); + tpacpi_send_radiosw_update(); hotkey_tablet_mode_notify_change(); hotkey_wakeup_reason_notify_change(); hotkey_wakeup_hotunplug_complete_notify_change(); - hotkey_poll_setup_safe(0); + hotkey_poll_setup_safe(false); } /* procfs -------------------------------------------------------------- */ @@ -3290,8 +3736,8 @@ static int hotkey_read(char *p) 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", hotkey_mask); + if (hotkey_all_mask) { + len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_user_mask); len += sprintf(p + len, "commands:\tenable, disable, reset, <mask>\n"); } else { @@ -3328,7 +3774,7 @@ static int hotkey_write(char *buf) if (mutex_lock_killable(&hotkey_mutex)) return -ERESTARTSYS; - mask = hotkey_mask; + mask = hotkey_user_mask; res = 0; while ((cmd = next_cmd(&buf))) { @@ -3338,7 +3784,8 @@ static int hotkey_write(char *buf) hotkey_enabledisable_warn(0); res = -EPERM; } else if (strlencmp(cmd, "reset") == 0) { - mask = hotkey_orig_mask; + mask = (hotkey_all_mask | hotkey_source_mask) + & ~hotkey_reserved_mask; } else if (sscanf(cmd, "0x%x", &mask) == 1) { /* mask set */ } else if (sscanf(cmd, "%x", &mask) == 1) { @@ -3349,12 +3796,11 @@ static int hotkey_write(char *buf) } } - if (!res) + if (!res) { tpacpi_disclose_usertask("procfs hotkey", "set mask to 0x%08x\n", mask); - - if (!res && mask != hotkey_mask) - res = hotkey_mask_set(mask); + res = hotkey_user_mask_set(mask); + } errexit: mutex_unlock(&hotkey_mutex); @@ -5655,16 +6101,16 @@ static const struct tpacpi_quirk brightness_quirk_table[] __initconst = { /* Models with ATI GPUs known to require ECNVRAM mode */ TPACPI_Q_IBM('1', 'Y', TPACPI_BRGHT_Q_EC), /* T43/p ATI */ - /* Models with ATI GPUs (waiting confirmation) */ - TPACPI_Q_IBM('1', 'R', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), + /* Models with ATI GPUs that can use ECNVRAM */ + TPACPI_Q_IBM('1', 'R', TPACPI_BRGHT_Q_EC), TPACPI_Q_IBM('1', 'Q', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), TPACPI_Q_IBM('7', '6', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), TPACPI_Q_IBM('7', '8', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), - /* Models with Intel Extreme Graphics 2 (waiting confirmation) */ + /* Models with Intel Extreme Graphics 2 */ + TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_NOEC), TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_NOEC), TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_NOEC), - TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_NOEC), /* Models with Intel GMA900 */ TPACPI_Q_IBM('7', '0', TPACPI_BRGHT_Q_NOEC), /* T43, R52 */ @@ -5767,8 +6213,10 @@ static int __init brightness_init(struct ibm_init_struct *iibm) TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, &ibm_backlight_data); if (IS_ERR(ibm_backlight_device)) { + int rc = PTR_ERR(ibm_backlight_device); + ibm_backlight_device = NULL; printk(TPACPI_ERR "Could not register backlight device\n"); - return PTR_ERR(ibm_backlight_device); + return rc; } vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, "brightness is supported\n"); @@ -7256,6 +7704,21 @@ static struct ibm_struct fan_driver_data = { **************************************************************************** ****************************************************************************/ +/* + * HKEY event callout for other subdrivers go here + * (yes, it is ugly, but it is quick, safe, and gets the job done + */ +static void tpacpi_driver_event(const unsigned int hkey_event) +{ +} + + + +static void hotkey_driver_event(const unsigned int scancode) +{ + tpacpi_driver_event(TP_HKEY_EV_HOTKEY_BASE + scancode); +} + /* sysfs name ---------------------------------------------------------- */ static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, struct device_attribute *attr, @@ -7524,9 +7987,11 @@ static int __init probe_for_thinkpad(void) /* * Non-ancient models have better DMI tagging, but very old models - * don't. + * don't. tpacpi_is_fw_known() is a cheat to help in that case. */ - is_thinkpad = (thinkpad_id.model_str != NULL); + is_thinkpad = (thinkpad_id.model_str != NULL) || + (thinkpad_id.ec_model != 0) || + tpacpi_is_fw_known(); /* ec is required because many other handles are relative to it */ TPACPI_ACPIHANDLE_INIT(ec); @@ -7537,13 +8002,6 @@ static int __init probe_for_thinkpad(void) return -ENODEV; } - /* - * Risks a regression on very old machines, but reduces potential - * false positives a damn great deal - */ - if (!is_thinkpad) - is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM); - if (!is_thinkpad && !force_load) return -ENODEV; |