diff options
author | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-09-24 21:22:33 +0100 |
---|---|---|
committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-09-24 21:22:33 +0100 |
commit | baea7b946f00a291b166ccae7fcfed6c01530cc6 (patch) | |
tree | 4aa275fbdbec9c7b9b4629e8bee2bbecd3c6a6af /drivers/platform/x86/eeepc-laptop.c | |
parent | ae19ffbadc1b2100285a5b5b3d0a4e0a11390904 (diff) | |
parent | 94e0fb086fc5663c38bbc0fe86d698be8314f82f (diff) |
Merge branch 'origin' into for-linus
Conflicts:
MAINTAINERS
Diffstat (limited to 'drivers/platform/x86/eeepc-laptop.c')
-rw-r--r-- | drivers/platform/x86/eeepc-laptop.c | 340 |
1 files changed, 205 insertions, 135 deletions
diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 222ffb892f2..da3c08b3dcc 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -142,18 +142,28 @@ struct eeepc_hotk { struct rfkill *wlan_rfkill; struct rfkill *bluetooth_rfkill; struct rfkill *wwan3g_rfkill; + struct rfkill *wimax_rfkill; struct hotplug_slot *hotplug_slot; - struct work_struct hotplug_work; + struct mutex hotplug_lock; }; /* The actual device the driver binds to */ static struct eeepc_hotk *ehotk; /* Platform device/driver */ +static int eeepc_hotk_thaw(struct device *device); +static int eeepc_hotk_restore(struct device *device); + +static struct dev_pm_ops eeepc_pm_ops = { + .thaw = eeepc_hotk_thaw, + .restore = eeepc_hotk_restore, +}; + static struct platform_driver platform_driver = { .driver = { .name = EEEPC_HOTK_FILE, .owner = THIS_MODULE, + .pm = &eeepc_pm_ops, } }; @@ -192,7 +202,6 @@ static struct key_entry eeepc_keymap[] = { */ static int eeepc_hotk_add(struct acpi_device *device); static int eeepc_hotk_remove(struct acpi_device *device, int type); -static int eeepc_hotk_resume(struct acpi_device *device); static void eeepc_hotk_notify(struct acpi_device *device, u32 event); static const struct acpi_device_id eeepc_device_ids[] = { @@ -209,7 +218,6 @@ static struct acpi_driver eeepc_hotk_driver = { .ops = { .add = eeepc_hotk_add, .remove = eeepc_hotk_remove, - .resume = eeepc_hotk_resume, .notify = eeepc_hotk_notify, }, }; @@ -579,7 +587,6 @@ static void cmsg_quirks(void) static int eeepc_hotk_check(void) { - const struct key_entry *key; struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; int result; @@ -604,31 +611,6 @@ static int eeepc_hotk_check(void) pr_info("Get control methods supported: 0x%x\n", ehotk->cm_supported); } - ehotk->inputdev = input_allocate_device(); - if (!ehotk->inputdev) { - pr_info("Unable to allocate input device\n"); - return 0; - } - ehotk->inputdev->name = "Asus EeePC extra buttons"; - ehotk->inputdev->phys = EEEPC_HOTK_FILE "/input0"; - ehotk->inputdev->id.bustype = BUS_HOST; - ehotk->inputdev->getkeycode = eeepc_getkeycode; - ehotk->inputdev->setkeycode = eeepc_setkeycode; - - for (key = eeepc_keymap; key->type != KE_END; key++) { - switch (key->type) { - case KE_KEY: - set_bit(EV_KEY, ehotk->inputdev->evbit); - set_bit(key->keycode, ehotk->inputdev->keybit); - break; - } - } - result = input_register_device(ehotk->inputdev); - if (result) { - pr_info("Unable to register input device\n"); - input_free_device(ehotk->inputdev); - return 0; - } } else { pr_err("Hotkey device not present, aborting\n"); return -EINVAL; @@ -661,40 +643,48 @@ static int eeepc_get_adapter_status(struct hotplug_slot *hotplug_slot, return 0; } -static void eeepc_hotplug_work(struct work_struct *work) +static void eeepc_rfkill_hotplug(void) { struct pci_dev *dev; - struct pci_bus *bus = pci_find_bus(0, 1); - bool blocked; + struct pci_bus *bus; + bool blocked = eeepc_wlan_rfkill_blocked(); - if (!bus) { - pr_warning("Unable to find PCI bus 1?\n"); - return; - } + if (ehotk->wlan_rfkill) + rfkill_set_sw_state(ehotk->wlan_rfkill, blocked); - blocked = eeepc_wlan_rfkill_blocked(); - if (!blocked) { - dev = pci_get_slot(bus, 0); - if (dev) { - /* Device already present */ - pci_dev_put(dev); - return; - } - dev = pci_scan_single_device(bus, 0); - if (dev) { - pci_bus_assign_resources(bus); - if (pci_bus_add_device(dev)) - pr_err("Unable to hotplug wifi\n"); + mutex_lock(&ehotk->hotplug_lock); + + if (ehotk->hotplug_slot) { + bus = pci_find_bus(0, 1); + if (!bus) { + pr_warning("Unable to find PCI bus 1?\n"); + goto out_unlock; } - } else { - dev = pci_get_slot(bus, 0); - if (dev) { - pci_remove_bus_device(dev); - pci_dev_put(dev); + + if (!blocked) { + dev = pci_get_slot(bus, 0); + if (dev) { + /* Device already present */ + pci_dev_put(dev); + goto out_unlock; + } + dev = pci_scan_single_device(bus, 0); + if (dev) { + pci_bus_assign_resources(bus); + if (pci_bus_add_device(dev)) + pr_err("Unable to hotplug wifi\n"); + } + } else { + dev = pci_get_slot(bus, 0); + if (dev) { + pci_remove_bus_device(dev); + pci_dev_put(dev); + } } } - rfkill_set_sw_state(ehotk->wlan_rfkill, blocked); +out_unlock: + mutex_unlock(&ehotk->hotplug_lock); } static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data) @@ -702,7 +692,7 @@ static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data) if (event != ACPI_NOTIFY_BUS_CHECK) return; - schedule_work(&ehotk->hotplug_work); + eeepc_rfkill_hotplug(); } static void eeepc_hotk_notify(struct acpi_device *device, u32 event) @@ -839,66 +829,38 @@ error_slot: return ret; } -static int eeepc_hotk_add(struct acpi_device *device) -{ - int result; - - if (!device) - return -EINVAL; - pr_notice(EEEPC_HOTK_NAME "\n"); - ehotk = kzalloc(sizeof(struct eeepc_hotk), GFP_KERNEL); - if (!ehotk) - return -ENOMEM; - ehotk->init_flag = DISABLE_ASL_WLAN | DISABLE_ASL_DISPLAYSWITCH; - ehotk->handle = device->handle; - strcpy(acpi_device_name(device), EEEPC_HOTK_DEVICE_NAME); - strcpy(acpi_device_class(device), EEEPC_HOTK_CLASS); - device->driver_data = ehotk; - ehotk->device = device; - result = eeepc_hotk_check(); - if (result) - goto ehotk_fail; - - return 0; - - ehotk_fail: - kfree(ehotk); - ehotk = NULL; - - return result; -} - -static int eeepc_hotk_remove(struct acpi_device *device, int type) -{ - if (!device || !acpi_driver_data(device)) - return -EINVAL; - - kfree(ehotk); - return 0; -} - -static int eeepc_hotk_resume(struct acpi_device *device) +static int eeepc_hotk_thaw(struct device *device) { if (ehotk->wlan_rfkill) { bool wlan; - /* Workaround - it seems that _PTS disables the wireless - without notification or changing the value read by WLAN. - Normally this is fine because the correct value is restored - from the non-volatile storage on resume, but we need to do - it ourself if case suspend is aborted, or we lose wireless. + /* + * Work around bios bug - acpi _PTS turns off the wireless led + * during suspend. Normally it restores it on resume, but + * we should kick it ourselves in case hibernation is aborted. */ wlan = get_acpi(CM_ASL_WLAN); set_acpi(CM_ASL_WLAN, wlan); + } - rfkill_set_sw_state(ehotk->wlan_rfkill, wlan != 1); + return 0; +} - schedule_work(&ehotk->hotplug_work); - } +static int eeepc_hotk_restore(struct device *device) +{ + /* Refresh both wlan rfkill state and pci hotplug */ + if (ehotk->wlan_rfkill) + eeepc_rfkill_hotplug(); if (ehotk->bluetooth_rfkill) rfkill_set_sw_state(ehotk->bluetooth_rfkill, get_acpi(CM_ASL_BLUETOOTH) != 1); + if (ehotk->wwan3g_rfkill) + rfkill_set_sw_state(ehotk->wwan3g_rfkill, + get_acpi(CM_ASL_3G) != 1); + if (ehotk->wimax_rfkill) + rfkill_set_sw_state(ehotk->wimax_rfkill, + get_acpi(CM_ASL_WIMAX) != 1); return 0; } @@ -1019,16 +981,37 @@ static void eeepc_backlight_exit(void) static void eeepc_rfkill_exit(void) { + eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P5"); eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P6"); eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P7"); - if (ehotk->wlan_rfkill) + if (ehotk->wlan_rfkill) { rfkill_unregister(ehotk->wlan_rfkill); - if (ehotk->bluetooth_rfkill) - rfkill_unregister(ehotk->bluetooth_rfkill); - if (ehotk->wwan3g_rfkill) - rfkill_unregister(ehotk->wwan3g_rfkill); + rfkill_destroy(ehotk->wlan_rfkill); + ehotk->wlan_rfkill = NULL; + } + /* + * Refresh pci hotplug in case the rfkill state was changed after + * eeepc_unregister_rfkill_notifier() + */ + eeepc_rfkill_hotplug(); if (ehotk->hotplug_slot) pci_hp_deregister(ehotk->hotplug_slot); + + if (ehotk->bluetooth_rfkill) { + rfkill_unregister(ehotk->bluetooth_rfkill); + rfkill_destroy(ehotk->bluetooth_rfkill); + ehotk->bluetooth_rfkill = NULL; + } + if (ehotk->wwan3g_rfkill) { + rfkill_unregister(ehotk->wwan3g_rfkill); + rfkill_destroy(ehotk->wwan3g_rfkill); + ehotk->wwan3g_rfkill = NULL; + } + if (ehotk->wimax_rfkill) { + rfkill_unregister(ehotk->wimax_rfkill); + rfkill_destroy(ehotk->wimax_rfkill); + ehotk->wimax_rfkill = NULL; + } } static void eeepc_input_exit(void) @@ -1050,19 +1033,6 @@ static void eeepc_hwmon_exit(void) eeepc_hwmon_device = NULL; } -static void __exit eeepc_laptop_exit(void) -{ - eeepc_backlight_exit(); - eeepc_rfkill_exit(); - eeepc_input_exit(); - eeepc_hwmon_exit(); - acpi_bus_unregister_driver(&eeepc_hotk_driver); - sysfs_remove_group(&platform_device->dev.kobj, - &platform_attribute_group); - platform_device_unregister(platform_device); - platform_driver_unregister(&platform_driver); -} - static int eeepc_new_rfkill(struct rfkill **rfkill, const char *name, struct device *dev, enum rfkill_type type, int cm) @@ -1094,10 +1064,7 @@ static int eeepc_rfkill_init(struct device *dev) { int result = 0; - INIT_WORK(&ehotk->hotplug_work, eeepc_hotplug_work); - - eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P6"); - eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P7"); + mutex_init(&ehotk->hotplug_lock); result = eeepc_new_rfkill(&ehotk->wlan_rfkill, "eeepc-wlan", dev, @@ -1120,6 +1087,13 @@ static int eeepc_rfkill_init(struct device *dev) if (result && result != -ENODEV) goto exit; + result = eeepc_new_rfkill(&ehotk->wimax_rfkill, + "eeepc-wimax", dev, + RFKILL_TYPE_WIMAX, CM_ASL_WIMAX); + + if (result && result != -ENODEV) + goto exit; + result = eeepc_setup_pci_hotplug(); /* * If we get -EBUSY then something else is handling the PCI hotplug - @@ -1128,6 +1102,15 @@ static int eeepc_rfkill_init(struct device *dev) if (result == -EBUSY) result = 0; + eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P5"); + eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P6"); + eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P7"); + /* + * Refresh pci hotplug in case the rfkill state was changed during + * setup. + */ + eeepc_rfkill_hotplug(); + exit: if (result && result != -ENODEV) eeepc_rfkill_exit(); @@ -1172,21 +1155,61 @@ static int eeepc_hwmon_init(struct device *dev) return result; } -static int __init eeepc_laptop_init(void) +static int eeepc_input_init(struct device *dev) { - struct device *dev; + const struct key_entry *key; int result; - if (acpi_disabled) - return -ENODEV; - result = acpi_bus_register_driver(&eeepc_hotk_driver); - if (result < 0) + ehotk->inputdev = input_allocate_device(); + if (!ehotk->inputdev) { + pr_info("Unable to allocate input device\n"); + return -ENOMEM; + } + ehotk->inputdev->name = "Asus EeePC extra buttons"; + ehotk->inputdev->dev.parent = dev; + ehotk->inputdev->phys = EEEPC_HOTK_FILE "/input0"; + ehotk->inputdev->id.bustype = BUS_HOST; + ehotk->inputdev->getkeycode = eeepc_getkeycode; + ehotk->inputdev->setkeycode = eeepc_setkeycode; + + for (key = eeepc_keymap; key->type != KE_END; key++) { + switch (key->type) { + case KE_KEY: + set_bit(EV_KEY, ehotk->inputdev->evbit); + set_bit(key->keycode, ehotk->inputdev->keybit); + break; + } + } + result = input_register_device(ehotk->inputdev); + if (result) { + pr_info("Unable to register input device\n"); + input_free_device(ehotk->inputdev); return result; - if (!ehotk) { - acpi_bus_unregister_driver(&eeepc_hotk_driver); - return -ENODEV; } + return 0; +} + +static int eeepc_hotk_add(struct acpi_device *device) +{ + struct device *dev; + int result; + if (!device) + return -EINVAL; + pr_notice(EEEPC_HOTK_NAME "\n"); + ehotk = kzalloc(sizeof(struct eeepc_hotk), GFP_KERNEL); + if (!ehotk) + return -ENOMEM; + ehotk->init_flag = DISABLE_ASL_WLAN | DISABLE_ASL_DISPLAYSWITCH; + ehotk->handle = device->handle; + strcpy(acpi_device_name(device), EEEPC_HOTK_DEVICE_NAME); + strcpy(acpi_device_class(device), EEEPC_HOTK_CLASS); + device->driver_data = ehotk; + ehotk->device = device; + + result = eeepc_hotk_check(); + if (result) + goto fail_platform_driver; eeepc_enable_camera(); /* Register platform stuff */ @@ -1216,6 +1239,10 @@ static int __init eeepc_laptop_init(void) pr_info("Backlight controlled by ACPI video " "driver\n"); + result = eeepc_input_init(dev); + if (result) + goto fail_input; + result = eeepc_hwmon_init(dev); if (result) goto fail_hwmon; @@ -1225,9 +1252,12 @@ static int __init eeepc_laptop_init(void) goto fail_rfkill; return 0; + fail_rfkill: eeepc_hwmon_exit(); fail_hwmon: + eeepc_input_exit(); +fail_input: eeepc_backlight_exit(); fail_backlight: sysfs_remove_group(&platform_device->dev.kobj, @@ -1239,9 +1269,49 @@ fail_platform_device2: fail_platform_device1: platform_driver_unregister(&platform_driver); fail_platform_driver: - eeepc_input_exit(); + kfree(ehotk); + return result; } +static int eeepc_hotk_remove(struct acpi_device *device, int type) +{ + if (!device || !acpi_driver_data(device)) + return -EINVAL; + + eeepc_backlight_exit(); + eeepc_rfkill_exit(); + eeepc_input_exit(); + eeepc_hwmon_exit(); + sysfs_remove_group(&platform_device->dev.kobj, + &platform_attribute_group); + platform_device_unregister(platform_device); + platform_driver_unregister(&platform_driver); + + kfree(ehotk); + return 0; +} + +static int __init eeepc_laptop_init(void) +{ + int result; + + if (acpi_disabled) + return -ENODEV; + result = acpi_bus_register_driver(&eeepc_hotk_driver); + if (result < 0) + return result; + if (!ehotk) { + acpi_bus_unregister_driver(&eeepc_hotk_driver); + return -ENODEV; + } + return 0; +} + +static void __exit eeepc_laptop_exit(void) +{ + acpi_bus_unregister_driver(&eeepc_hotk_driver); +} + module_init(eeepc_laptop_init); module_exit(eeepc_laptop_exit); |