From 16bf288c4be67b68c3fcb6561ff145702cb7bd22 Mon Sep 17 00:00:00 2001 From: Chris Bagwell Date: Sun, 25 Mar 2012 23:26:20 -0700 Subject: Input: wacom - create inputs when wireless connect When a tablet connect or disconnect is detected, schedule work queue to register or unregister related input devices. When a wireless tablet connects, it reports same USB PID used if tablet is connected with USB cable. Use this to update features values, set input capabilities, and then register device. From there, the Pen and Touch interfaces will reuse the existing tablet's IRQ routines. Its possible that 1 receiver is shared with 2 tablets with different PID (small and medium Bamboo for example) so the input is unregister at disconnect to better support this case. Signed-off-by: Chris Bagwell Tested-by: Jason Gerecke Acked-by: Ping Cheng Signed-off-by: Dmitry Torokhov --- drivers/input/tablet/wacom.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/input/tablet/wacom.h') diff --git a/drivers/input/tablet/wacom.h b/drivers/input/tablet/wacom.h index 0783864a7dc2..febbfd9f3a84 100644 --- a/drivers/input/tablet/wacom.h +++ b/drivers/input/tablet/wacom.h @@ -112,6 +112,7 @@ struct wacom { struct urb *irq; struct wacom_wac wacom_wac; struct mutex lock; + struct work_struct work; bool open; char phys[32]; struct wacom_led { @@ -122,6 +123,12 @@ struct wacom { } led; }; +static inline void wacom_schedule_work(struct wacom_wac *wacom_wac) +{ + struct wacom *wacom = container_of(wacom_wac, struct wacom, wacom_wac); + schedule_work(&wacom->work); +} + extern const struct usb_device_id wacom_ids[]; void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len); -- cgit v1.2.3 From a1d552cc15b0be9124ccba593f99f59c4ec1e153 Mon Sep 17 00:00:00 2001 From: Chris Bagwell Date: Sun, 25 Mar 2012 23:26:30 -0700 Subject: Input: wacom - wireless battery status Signed-off-by: Chris Bagwell Tested-by: Jason Gerecke Acked-by: Ping Cheng Signed-off-by: Dmitry Torokhov --- drivers/input/tablet/Kconfig | 1 + drivers/input/tablet/wacom.h | 2 ++ drivers/input/tablet/wacom_sys.c | 57 +++++++++++++++++++++++++++++++++++++++- drivers/input/tablet/wacom_wac.c | 5 +++- drivers/input/tablet/wacom_wac.h | 1 + 5 files changed, 64 insertions(+), 2 deletions(-) (limited to 'drivers/input/tablet/wacom.h') diff --git a/drivers/input/tablet/Kconfig b/drivers/input/tablet/Kconfig index 58a87755b936..0edeb949109b 100644 --- a/drivers/input/tablet/Kconfig +++ b/drivers/input/tablet/Kconfig @@ -76,6 +76,7 @@ config TABLET_USB_KBTAB config TABLET_USB_WACOM tristate "Wacom Intuos/Graphire tablet support (USB)" depends on USB_ARCH_HAS_HCD + select POWER_SUPPLY select USB help Say Y here if you want to use the USB version of the Wacom Intuos diff --git a/drivers/input/tablet/wacom.h b/drivers/input/tablet/wacom.h index febbfd9f3a84..b4842d0e61dd 100644 --- a/drivers/input/tablet/wacom.h +++ b/drivers/input/tablet/wacom.h @@ -88,6 +88,7 @@ #include #include #include +#include #include /* @@ -121,6 +122,7 @@ struct wacom { u8 hlv; /* status led brightness button pressed (1..127) */ u8 img_lum; /* OLED matrix display brightness */ } led; + struct power_supply battery; }; static inline void wacom_schedule_work(struct wacom_wac *wacom_wac) diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c index 2fc77053960f..19ba58640dc2 100644 --- a/drivers/input/tablet/wacom_sys.c +++ b/drivers/input/tablet/wacom_sys.c @@ -843,6 +843,55 @@ static void wacom_destroy_leds(struct wacom *wacom) } } +static enum power_supply_property wacom_battery_props[] = { + POWER_SUPPLY_PROP_CAPACITY +}; + +static int wacom_battery_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct wacom *wacom = container_of(psy, struct wacom, battery); + int ret = 0; + + switch (psp) { + case POWER_SUPPLY_PROP_CAPACITY: + val->intval = + wacom->wacom_wac.battery_capacity * 100 / 31; + break; + default: + ret = -EINVAL; + break; + } + + return ret; +} + +static int wacom_initialize_battery(struct wacom *wacom) +{ + int error = 0; + + if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) { + wacom->battery.properties = wacom_battery_props; + wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props); + wacom->battery.get_property = wacom_battery_get_property; + wacom->battery.name = "wacom_battery"; + wacom->battery.type = POWER_SUPPLY_TYPE_BATTERY; + wacom->battery.use_for_apm = 0; + + error = power_supply_register(&wacom->usbdev->dev, + &wacom->battery); + } + + return error; +} + +static void wacom_destroy_battery(struct wacom *wacom) +{ + if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) + power_supply_unregister(&wacom->battery); +} + static int wacom_register_input(struct wacom *wacom) { struct input_dev *input_dev; @@ -1016,10 +1065,14 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i if (error) goto fail4; + error = wacom_initialize_battery(wacom); + if (error) + goto fail5; + if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) { error = wacom_register_input(wacom); if (error) - goto fail5; + goto fail6; } /* Note that if query fails it is not a hard failure */ @@ -1034,6 +1087,7 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i return 0; + fail6: wacom_destroy_battery(wacom); fail5: wacom_destroy_leds(wacom); fail4: wacom_remove_shared_data(wacom_wac); fail3: usb_free_urb(wacom->irq); @@ -1052,6 +1106,7 @@ static void wacom_disconnect(struct usb_interface *intf) cancel_work_sync(&wacom->work); if (wacom->wacom_wac.input) input_unregister_device(wacom->wacom_wac.input); + wacom_destroy_battery(wacom); wacom_destroy_leds(wacom); usb_free_urb(wacom->irq); usb_free_coherent(interface_to_usbdev(intf), WACOM_PKGLEN_MAX, diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index fce7a09fb5db..99fb6fed2bf3 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -1054,17 +1054,20 @@ static int wacom_wireless_irq(struct wacom_wac *wacom, size_t len) connected = data[1] & 0x01; if (connected) { - int pid; + int pid, battery; pid = get_unaligned_be16(&data[6]); + battery = data[5] & 0x3f; if (wacom->pid != pid) { wacom->pid = pid; wacom_schedule_work(wacom); } + wacom->battery_capacity = battery; } else if (wacom->pid != 0) { /* disconnected while previously connected */ wacom->pid = 0; wacom_schedule_work(wacom); + wacom->battery_capacity = 0; } return 0; diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h index cffaf6b7e6e9..ba5a334e54d6 100644 --- a/drivers/input/tablet/wacom_wac.h +++ b/drivers/input/tablet/wacom_wac.h @@ -112,6 +112,7 @@ struct wacom_wac { struct wacom_shared *shared; struct input_dev *input; int pid; + int battery_capacity; }; #endif -- cgit v1.2.3