What: /sys/bus/hid/drivers/wiimote/<dev>/extension
Date: August 2011
KernelVersion: 3.2
-Contact: David Herrmann <dh.herrmann@googlemail.com>
+Contact: David Herrmann <dh.herrmann@gmail.com>
Description: This file contains the currently connected and initialized
extensions. It can be one of: none, motionp, nunchuck, classic,
motionp+nunchuck, motionp+classic
the official Nintendo Nunchuck extension and classic is the
Nintendo Classic Controller extension. The motionp extension can
be combined with the other two.
+ Starting with kernel-version 3.11 Motion Plus hotplugging is
+ supported and if detected, it's no longer reported as static
+ extension. You will get uevent notifications for the motion-plus
+ device then.
+
+What: /sys/bus/hid/drivers/wiimote/<dev>/devtype
+Date: May 2013
+KernelVersion: 3.11
+Contact: David Herrmann <dh.herrmann@gmail.com>
+Description: While a device is initialized by the wiimote driver, we perform
+ a device detection and signal a "change" uevent after it is
+ done. This file shows the detected device type. "pending" means
+ that the detection is still ongoing, "unknown" means, that the
+ device couldn't be detected or loaded. "generic" means, that the
+ device couldn't be detected but supports basic Wii Remote
+ features and can be used.
+ Other strings for each device-type are available and may be
+ added if new device-specific detections are added.
+ Currently supported are:
+ gen10: First Wii Remote generation
+ gen20: Second Wii Remote Plus generation (builtin MP)
+ balanceboard: Wii Balance Board
+
+What: /sys/bus/hid/drivers/wiimote/<dev>/bboard_calib
+Date: May 2013
+KernelVersion: 3.11
+Contact: David Herrmann <dh.herrmann@gmail.com>
+Description: This attribute is only provided if the device was detected as a
+ balance board. It provides a single line with 3 calibration
+ values for all 4 sensors. The values are separated by colons and
+ are each 2 bytes long (encoded as 4 digit hexadecimal value).
+ First, 0kg values for all 4 sensors are written, followed by the
+ 17kg values for all 4 sensors and last the 34kg values for all 4
+ sensors.
+ Calibration data is already applied by the kernel to all input
+ values but may be used by user-space to perform other
+ transformations.
Support for Wacom Graphire Bluetooth and Intuos4 WL tablets.
config HID_WIIMOTE
- tristate "Nintendo Wii Remote support"
+ tristate "Nintendo Wii / Wii U peripherals"
depends on HID
depends on LEDS_CLASS
select POWER_SUPPLY
select INPUT_FF_MEMLESS
---help---
- Support for the Nintendo Wii Remote bluetooth device.
+ Support for Nintendo Wii and Wii U Bluetooth peripherals. Supported
+ devices are the Wii Remote and its extension devices, but also devices
+ based on the Wii Remote like the Wii U Pro Controller or the
+ Wii Balance Board.
-config HID_WIIMOTE_EXT
- bool "Nintendo Wii Remote Extension support"
- depends on HID_WIIMOTE
- default HID_WIIMOTE
- ---help---
- Support for extension controllers of the Nintendo Wii Remote. Say yes
- here if you want to use the Nintendo Motion+, Nunchuck or Classic
- extension controllers with your Wii Remote.
+ Support for all official Nintendo extensions is available, however, 3rd
+ party extensions might not be supported. Please report these devices to:
+ http://github.com/dvdhrm/xwiimote/issues
+
+ Other Nintendo Wii U peripherals that are IEEE 802.11 based (including
+ the Wii U Gamepad) might be supported in the future. But currently
+ support is limited to Bluetooth based devices.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called hid-wiimote.
config HID_ZEROPLUS
tristate "Zeroplus based game controller support"
hid-logitech-y += hid-lg4ff.o
endif
-hid-wiimote-y := hid-wiimote-core.o
-ifdef CONFIG_HID_WIIMOTE_EXT
- hid-wiimote-y += hid-wiimote-ext.o
-endif
+hid-wiimote-y := hid-wiimote-core.o hid-wiimote-modules.o
ifdef CONFIG_DEBUG_FS
hid-wiimote-y += hid-wiimote-debug.o
endif
__u8 battery_capacity;
__u8 power_raw;
__u8 ps_connected;
+ __u8 bat_charging;
struct power_supply battery;
struct power_supply ac;
__u8 led_selector;
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_SCOPE,
+ POWER_SUPPLY_PROP_STATUS,
};
static enum power_supply_property wacom_ac_props[] = {
case POWER_SUPPLY_PROP_CAPACITY:
val->intval = wdata->battery_capacity;
break;
+ case POWER_SUPPLY_PROP_STATUS:
+ if (wdata->bat_charging)
+ val->intval = POWER_SUPPLY_STATUS_CHARGING;
+ else
+ if (wdata->battery_capacity == 100 && wdata->ps_connected)
+ val->intval = POWER_SUPPLY_STATUS_FULL;
+ else
+ val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
+ break;
default:
ret = -EINVAL;
break;
if (power_raw != wdata->power_raw) {
wdata->power_raw = power_raw;
wdata->battery_capacity = batcap_i4[power_raw & 0x07];
- wdata->ps_connected = power_raw & 0x08;
+ wdata->bat_charging = (power_raw & 0x08) ? 1 : 0;
+ wdata->ps_connected = (power_raw & 0x10) ? 1 : 0;
}
break;
/*
- * HID driver for Nintendo Wiimote devices
- * Copyright (c) 2011 David Herrmann
+ * HID driver for Nintendo Wii / Wii U peripherals
+ * Copyright (c) 2011-2013 David Herrmann <dh.herrmann@gmail.com>
*/
/*
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/input.h>
-#include <linux/leds.h>
#include <linux/module.h>
#include <linux/mutex.h>
-#include <linux/power_supply.h>
#include <linux/spinlock.h>
#include "hid-ids.h"
#include "hid-wiimote.h"
-enum wiiproto_keys {
- WIIPROTO_KEY_LEFT,
- WIIPROTO_KEY_RIGHT,
- WIIPROTO_KEY_UP,
- WIIPROTO_KEY_DOWN,
- WIIPROTO_KEY_PLUS,
- WIIPROTO_KEY_MINUS,
- WIIPROTO_KEY_ONE,
- WIIPROTO_KEY_TWO,
- WIIPROTO_KEY_A,
- WIIPROTO_KEY_B,
- WIIPROTO_KEY_HOME,
- WIIPROTO_KEY_COUNT
-};
-
-static __u16 wiiproto_keymap[] = {
- KEY_LEFT, /* WIIPROTO_KEY_LEFT */
- KEY_RIGHT, /* WIIPROTO_KEY_RIGHT */
- KEY_UP, /* WIIPROTO_KEY_UP */
- KEY_DOWN, /* WIIPROTO_KEY_DOWN */
- KEY_NEXT, /* WIIPROTO_KEY_PLUS */
- KEY_PREVIOUS, /* WIIPROTO_KEY_MINUS */
- BTN_1, /* WIIPROTO_KEY_ONE */
- BTN_2, /* WIIPROTO_KEY_TWO */
- BTN_A, /* WIIPROTO_KEY_A */
- BTN_B, /* WIIPROTO_KEY_B */
- BTN_MODE, /* WIIPROTO_KEY_HOME */
-};
+/* output queue handling */
-static enum power_supply_property wiimote_battery_props[] = {
- POWER_SUPPLY_PROP_CAPACITY,
- POWER_SUPPLY_PROP_SCOPE,
-};
-
-static ssize_t wiimote_hid_send(struct hid_device *hdev, __u8 *buffer,
- size_t count)
+static int wiimote_hid_send(struct hid_device *hdev, __u8 *buffer,
+ size_t count)
{
__u8 *buf;
- ssize_t ret;
+ int ret;
if (!hdev->hid_output_raw_report)
return -ENODEV;
return ret;
}
-static void wiimote_worker(struct work_struct *work)
+static void wiimote_queue_worker(struct work_struct *work)
{
- struct wiimote_data *wdata = container_of(work, struct wiimote_data,
- worker);
+ struct wiimote_queue *queue = container_of(work, struct wiimote_queue,
+ worker);
+ struct wiimote_data *wdata = container_of(queue, struct wiimote_data,
+ queue);
unsigned long flags;
+ int ret;
- spin_lock_irqsave(&wdata->qlock, flags);
+ spin_lock_irqsave(&wdata->queue.lock, flags);
- while (wdata->head != wdata->tail) {
- spin_unlock_irqrestore(&wdata->qlock, flags);
- wiimote_hid_send(wdata->hdev, wdata->outq[wdata->tail].data,
- wdata->outq[wdata->tail].size);
- spin_lock_irqsave(&wdata->qlock, flags);
+ while (wdata->queue.head != wdata->queue.tail) {
+ spin_unlock_irqrestore(&wdata->queue.lock, flags);
+ ret = wiimote_hid_send(wdata->hdev,
+ wdata->queue.outq[wdata->queue.tail].data,
+ wdata->queue.outq[wdata->queue.tail].size);
+ if (ret < 0) {
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wiimote_cmd_abort(wdata);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+ }
+ spin_lock_irqsave(&wdata->queue.lock, flags);
- wdata->tail = (wdata->tail + 1) % WIIMOTE_BUFSIZE;
+ wdata->queue.tail = (wdata->queue.tail + 1) % WIIMOTE_BUFSIZE;
}
- spin_unlock_irqrestore(&wdata->qlock, flags);
+ spin_unlock_irqrestore(&wdata->queue.lock, flags);
}
static void wiimote_queue(struct wiimote_data *wdata, const __u8 *buffer,
if (count > HID_MAX_BUFFER_SIZE) {
hid_warn(wdata->hdev, "Sending too large output report\n");
- return;
+
+ spin_lock_irqsave(&wdata->queue.lock, flags);
+ goto out_error;
}
/*
* will reschedule itself until the queue is empty.
*/
- spin_lock_irqsave(&wdata->qlock, flags);
+ spin_lock_irqsave(&wdata->queue.lock, flags);
- memcpy(wdata->outq[wdata->head].data, buffer, count);
- wdata->outq[wdata->head].size = count;
- newhead = (wdata->head + 1) % WIIMOTE_BUFSIZE;
+ memcpy(wdata->queue.outq[wdata->queue.head].data, buffer, count);
+ wdata->queue.outq[wdata->queue.head].size = count;
+ newhead = (wdata->queue.head + 1) % WIIMOTE_BUFSIZE;
- if (wdata->head == wdata->tail) {
- wdata->head = newhead;
- schedule_work(&wdata->worker);
- } else if (newhead != wdata->tail) {
- wdata->head = newhead;
+ if (wdata->queue.head == wdata->queue.tail) {
+ wdata->queue.head = newhead;
+ schedule_work(&wdata->queue.worker);
+ } else if (newhead != wdata->queue.tail) {
+ wdata->queue.head = newhead;
} else {
hid_warn(wdata->hdev, "Output queue is full");
+ goto out_error;
}
- spin_unlock_irqrestore(&wdata->qlock, flags);
+ goto out_unlock;
+
+out_error:
+ wiimote_cmd_abort(wdata);
+out_unlock:
+ spin_unlock_irqrestore(&wdata->queue.lock, flags);
}
/*
*cmd1 |= 0x01;
}
-static void wiiproto_req_rumble(struct wiimote_data *wdata, __u8 rumble)
+void wiiproto_req_rumble(struct wiimote_data *wdata, __u8 rumble)
{
__u8 cmd[2];
wiimote_queue(wdata, cmd, sizeof(cmd));
}
-static void wiiproto_req_leds(struct wiimote_data *wdata, int leds)
+void wiiproto_req_leds(struct wiimote_data *wdata, int leds)
{
__u8 cmd[2];
* Check what peripherals of the wiimote are currently
* active and select a proper DRM that supports all of
* the requested data inputs.
+ *
+ * Not all combinations are actually supported. The following
+ * combinations work only with limitations:
+ * - IR cam in extended or full mode disables any data transmission
+ * of extension controllers. There is no DRM mode that supports
+ * extension bytes plus extended/full IR.
+ * - IR cam with accelerometer and extension *_EXT8 is not supported.
+ * However, all extensions that need *_EXT8 are devices that don't
+ * support IR cameras. Hence, this shouldn't happen under normal
+ * operation.
+ * - *_EXT16 is only supported in combination with buttons and
+ * accelerometer. No IR or similar can be active simultaneously. As
+ * above, all modules that require it are mutually exclusive with
+ * IR/etc. so this doesn't matter.
*/
static __u8 select_drm(struct wiimote_data *wdata)
{
__u8 ir = wdata->state.flags & WIIPROTO_FLAGS_IR;
- bool ext = wiiext_active(wdata);
+ bool ext;
- if (ir == WIIPROTO_FLAG_IR_BASIC) {
- if (wdata->state.flags & WIIPROTO_FLAG_ACCEL)
- return WIIPROTO_REQ_DRM_KAIE;
+ ext = (wdata->state.flags & WIIPROTO_FLAG_EXT_USED) ||
+ (wdata->state.flags & WIIPROTO_FLAG_MP_USED);
+
+ /* some 3rd-party balance-boards are hard-coded to KEE, *sigh* */
+ if (wdata->state.devtype == WIIMOTE_DEV_BALANCE_BOARD) {
+ if (ext)
+ return WIIPROTO_REQ_DRM_KEE;
else
+ return WIIPROTO_REQ_DRM_K;
+ }
+
+ if (ir == WIIPROTO_FLAG_IR_BASIC) {
+ if (wdata->state.flags & WIIPROTO_FLAG_ACCEL) {
+ if (ext)
+ return WIIPROTO_REQ_DRM_KAIE;
+ else
+ return WIIPROTO_REQ_DRM_KAI;
+ } else {
return WIIPROTO_REQ_DRM_KIE;
+ }
} else if (ir == WIIPROTO_FLAG_IR_EXT) {
return WIIPROTO_REQ_DRM_KAI;
} else if (ir == WIIPROTO_FLAG_IR_FULL) {
return WIIPROTO_REQ_DRM_KA;
} else {
if (ext)
- return WIIPROTO_REQ_DRM_KE;
+ return WIIPROTO_REQ_DRM_KEE;
else
return WIIPROTO_REQ_DRM_K;
}
{
__u8 cmd[3];
- if (drm == WIIPROTO_REQ_NULL)
+ if (wdata->state.flags & WIIPROTO_FLAG_DRM_LOCKED)
+ drm = wdata->state.drm;
+ else if (drm == WIIPROTO_REQ_NULL)
drm = select_drm(wdata);
cmd[0] = WIIPROTO_REQ_DRM;
wiimote_queue(wdata, cmd, sizeof(cmd));
}
-static void wiiproto_req_status(struct wiimote_data *wdata)
+void wiiproto_req_status(struct wiimote_data *wdata)
{
__u8 cmd[2];
wiimote_queue(wdata, cmd, sizeof(cmd));
}
-static void wiiproto_req_accel(struct wiimote_data *wdata, __u8 accel)
+void wiiproto_req_accel(struct wiimote_data *wdata, __u8 accel)
{
accel = !!accel;
if (accel == !!(wdata->state.flags & WIIPROTO_FLAG_ACCEL))
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
}
-static void wiiproto_req_ir1(struct wiimote_data *wdata, __u8 flags)
+void wiiproto_req_ir1(struct wiimote_data *wdata, __u8 flags)
{
__u8 cmd[2];
wiimote_queue(wdata, cmd, sizeof(cmd));
}
-static void wiiproto_req_ir2(struct wiimote_data *wdata, __u8 flags)
+void wiiproto_req_ir2(struct wiimote_data *wdata, __u8 flags)
{
__u8 cmd[2];
return ret;
}
-static int wiimote_battery_get_property(struct power_supply *psy,
- enum power_supply_property psp,
- union power_supply_propval *val)
+/* requires the cmd-mutex to be held */
+static int wiimote_cmd_init_ext(struct wiimote_data *wdata)
{
- struct wiimote_data *wdata = container_of(psy,
- struct wiimote_data, battery);
- int ret = 0, state;
- unsigned long flags;
+ __u8 wmem;
+ int ret;
- if (psp == POWER_SUPPLY_PROP_SCOPE) {
- val->intval = POWER_SUPPLY_SCOPE_DEVICE;
- return 0;
- }
+ /* initialize extension */
+ wmem = 0x55;
+ ret = wiimote_cmd_write(wdata, 0xa400f0, &wmem, sizeof(wmem));
+ if (ret)
+ return ret;
- ret = wiimote_cmd_acquire(wdata);
+ /* disable default encryption */
+ wmem = 0x0;
+ ret = wiimote_cmd_write(wdata, 0xa400fb, &wmem, sizeof(wmem));
if (ret)
return ret;
- spin_lock_irqsave(&wdata->state.lock, flags);
- wiimote_cmd_set(wdata, WIIPROTO_REQ_SREQ, 0);
- wiiproto_req_status(wdata);
- spin_unlock_irqrestore(&wdata->state.lock, flags);
+ return 0;
+}
- ret = wiimote_cmd_wait(wdata);
- state = wdata->state.cmd_battery;
- wiimote_cmd_release(wdata);
+/* requires the cmd-mutex to be held */
+static __u8 wiimote_cmd_read_ext(struct wiimote_data *wdata, __u8 *rmem)
+{
+ int ret;
+
+ /* read extension ID */
+ ret = wiimote_cmd_read(wdata, 0xa400fa, rmem, 6);
+ if (ret != 6)
+ return WIIMOTE_EXT_NONE;
+
+ hid_dbg(wdata->hdev, "extension ID: %02x:%02x %02x:%02x %02x:%02x\n",
+ rmem[0], rmem[1], rmem[2], rmem[3], rmem[4], rmem[5]);
+ if (rmem[0] == 0xff && rmem[1] == 0xff && rmem[2] == 0xff &&
+ rmem[3] == 0xff && rmem[4] == 0xff && rmem[5] == 0xff)
+ return WIIMOTE_EXT_NONE;
+
+ if (rmem[4] == 0x00 && rmem[5] == 0x00)
+ return WIIMOTE_EXT_NUNCHUK;
+ if (rmem[4] == 0x01 && rmem[5] == 0x01)
+ return WIIMOTE_EXT_CLASSIC_CONTROLLER;
+ if (rmem[4] == 0x04 && rmem[5] == 0x02)
+ return WIIMOTE_EXT_BALANCE_BOARD;
+ if (rmem[4] == 0x01 && rmem[5] == 0x20)
+ return WIIMOTE_EXT_PRO_CONTROLLER;
+
+ return WIIMOTE_EXT_UNKNOWN;
+}
+
+/* requires the cmd-mutex to be held */
+static int wiimote_cmd_init_mp(struct wiimote_data *wdata)
+{
+ __u8 wmem;
+ int ret;
+
+ /* initialize MP */
+ wmem = 0x55;
+ ret = wiimote_cmd_write(wdata, 0xa600f0, &wmem, sizeof(wmem));
if (ret)
return ret;
- switch (psp) {
- case POWER_SUPPLY_PROP_CAPACITY:
- val->intval = state * 100 / 255;
- break;
- default:
- ret = -EINVAL;
- break;
+ /* disable default encryption */
+ wmem = 0x0;
+ ret = wiimote_cmd_write(wdata, 0xa600fb, &wmem, sizeof(wmem));
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+/* requires the cmd-mutex to be held */
+static bool wiimote_cmd_map_mp(struct wiimote_data *wdata, __u8 exttype)
+{
+ __u8 wmem;
+
+ /* map MP with correct pass-through mode */
+ switch (exttype) {
+ case WIIMOTE_EXT_CLASSIC_CONTROLLER:
+ wmem = 0x07;
+ break;
+ case WIIMOTE_EXT_NUNCHUK:
+ wmem = 0x05;
+ break;
+ default:
+ wmem = 0x04;
+ break;
}
- return ret;
+ return wiimote_cmd_write(wdata, 0xa600fe, &wmem, sizeof(wmem));
}
-static int wiimote_init_ir(struct wiimote_data *wdata, __u16 mode)
+/* requires the cmd-mutex to be held */
+static bool wiimote_cmd_read_mp(struct wiimote_data *wdata, __u8 *rmem)
{
int ret;
- unsigned long flags;
- __u8 format = 0;
- static const __u8 data_enable[] = { 0x01 };
- static const __u8 data_sens1[] = { 0x02, 0x00, 0x00, 0x71, 0x01,
- 0x00, 0xaa, 0x00, 0x64 };
- static const __u8 data_sens2[] = { 0x63, 0x03 };
- static const __u8 data_fin[] = { 0x08 };
- spin_lock_irqsave(&wdata->state.lock, flags);
+ /* read motion plus ID */
+ ret = wiimote_cmd_read(wdata, 0xa600fa, rmem, 6);
+ if (ret != 6)
+ return false;
- if (mode == (wdata->state.flags & WIIPROTO_FLAGS_IR)) {
- spin_unlock_irqrestore(&wdata->state.lock, flags);
- return 0;
- }
+ hid_dbg(wdata->hdev, "motion plus ID: %02x:%02x %02x:%02x %02x:%02x\n",
+ rmem[0], rmem[1], rmem[2], rmem[3], rmem[4], rmem[5]);
- if (mode == 0) {
- wdata->state.flags &= ~WIIPROTO_FLAGS_IR;
- wiiproto_req_ir1(wdata, 0);
- wiiproto_req_ir2(wdata, 0);
- wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
- spin_unlock_irqrestore(&wdata->state.lock, flags);
- return 0;
- }
+ if (rmem[5] == 0x05)
+ return true;
- spin_unlock_irqrestore(&wdata->state.lock, flags);
+ hid_info(wdata->hdev, "unknown motion plus ID: %02x:%02x %02x:%02x %02x:%02x\n",
+ rmem[0], rmem[1], rmem[2], rmem[3], rmem[4], rmem[5]);
- ret = wiimote_cmd_acquire(wdata);
- if (ret)
- return ret;
+ return false;
+}
- /* send PIXEL CLOCK ENABLE cmd first */
- spin_lock_irqsave(&wdata->state.lock, flags);
- wiimote_cmd_set(wdata, WIIPROTO_REQ_IR1, 0);
- wiiproto_req_ir1(wdata, 0x06);
- spin_unlock_irqrestore(&wdata->state.lock, flags);
+/* requires the cmd-mutex to be held */
+static __u8 wiimote_cmd_read_mp_mapped(struct wiimote_data *wdata)
+{
+ int ret;
+ __u8 rmem[6];
- ret = wiimote_cmd_wait(wdata);
- if (ret)
- goto unlock;
- if (wdata->state.cmd_err) {
- ret = -EIO;
- goto unlock;
+ /* read motion plus ID */
+ ret = wiimote_cmd_read(wdata, 0xa400fa, rmem, 6);
+ if (ret != 6)
+ return WIIMOTE_MP_NONE;
+
+ hid_dbg(wdata->hdev, "mapped motion plus ID: %02x:%02x %02x:%02x %02x:%02x\n",
+ rmem[0], rmem[1], rmem[2], rmem[3], rmem[4], rmem[5]);
+
+ if (rmem[0] == 0xff && rmem[1] == 0xff && rmem[2] == 0xff &&
+ rmem[3] == 0xff && rmem[4] == 0xff && rmem[5] == 0xff)
+ return WIIMOTE_MP_NONE;
+
+ if (rmem[4] == 0x04 && rmem[5] == 0x05)
+ return WIIMOTE_MP_SINGLE;
+ else if (rmem[4] == 0x05 && rmem[5] == 0x05)
+ return WIIMOTE_MP_PASSTHROUGH_NUNCHUK;
+ else if (rmem[4] == 0x07 && rmem[5] == 0x05)
+ return WIIMOTE_MP_PASSTHROUGH_CLASSIC;
+
+ return WIIMOTE_MP_UNKNOWN;
+}
+
+/* device module handling */
+
+static const __u8 * const wiimote_devtype_mods[WIIMOTE_DEV_NUM] = {
+ [WIIMOTE_DEV_PENDING] = (const __u8[]){
+ WIIMOD_NULL,
+ },
+ [WIIMOTE_DEV_UNKNOWN] = (const __u8[]){
+ WIIMOD_NO_MP,
+ WIIMOD_NULL,
+ },
+ [WIIMOTE_DEV_GENERIC] = (const __u8[]){
+ WIIMOD_KEYS,
+ WIIMOD_RUMBLE,
+ WIIMOD_BATTERY,
+ WIIMOD_LED1,
+ WIIMOD_LED2,
+ WIIMOD_LED3,
+ WIIMOD_LED4,
+ WIIMOD_ACCEL,
+ WIIMOD_IR,
+ WIIMOD_NULL,
+ },
+ [WIIMOTE_DEV_GEN10] = (const __u8[]){
+ WIIMOD_KEYS,
+ WIIMOD_RUMBLE,
+ WIIMOD_BATTERY,
+ WIIMOD_LED1,
+ WIIMOD_LED2,
+ WIIMOD_LED3,
+ WIIMOD_LED4,
+ WIIMOD_ACCEL,
+ WIIMOD_IR,
+ WIIMOD_NULL,
+ },
+ [WIIMOTE_DEV_GEN20] = (const __u8[]){
+ WIIMOD_KEYS,
+ WIIMOD_RUMBLE,
+ WIIMOD_BATTERY,
+ WIIMOD_LED1,
+ WIIMOD_LED2,
+ WIIMOD_LED3,
+ WIIMOD_LED4,
+ WIIMOD_ACCEL,
+ WIIMOD_IR,
+ WIIMOD_BUILTIN_MP,
+ WIIMOD_NULL,
+ },
+ [WIIMOTE_DEV_BALANCE_BOARD] = (const __u8[]) {
+ WIIMOD_BATTERY,
+ WIIMOD_LED1,
+ WIIMOD_NO_MP,
+ WIIMOD_NULL,
+ },
+ [WIIMOTE_DEV_PRO_CONTROLLER] = (const __u8[]) {
+ WIIMOD_BATTERY,
+ WIIMOD_LED1,
+ WIIMOD_LED2,
+ WIIMOD_LED3,
+ WIIMOD_LED4,
+ WIIMOD_NO_MP,
+ WIIMOD_NULL,
+ },
+};
+
+static void wiimote_modules_load(struct wiimote_data *wdata,
+ unsigned int devtype)
+{
+ bool need_input = false;
+ const __u8 *mods, *iter;
+ const struct wiimod_ops *ops;
+ int ret;
+
+ mods = wiimote_devtype_mods[devtype];
+
+ for (iter = mods; *iter != WIIMOD_NULL; ++iter) {
+ if (wiimod_table[*iter]->flags & WIIMOD_FLAG_INPUT) {
+ need_input = true;
+ break;
+ }
}
- /* enable IR LOGIC */
- spin_lock_irqsave(&wdata->state.lock, flags);
- wiimote_cmd_set(wdata, WIIPROTO_REQ_IR2, 0);
- wiiproto_req_ir2(wdata, 0x06);
- spin_unlock_irqrestore(&wdata->state.lock, flags);
+ if (need_input) {
+ wdata->input = input_allocate_device();
+ if (!wdata->input)
+ return;
+
+ input_set_drvdata(wdata->input, wdata);
+ wdata->input->dev.parent = &wdata->hdev->dev;
+ wdata->input->id.bustype = wdata->hdev->bus;
+ wdata->input->id.vendor = wdata->hdev->vendor;
+ wdata->input->id.product = wdata->hdev->product;
+ wdata->input->id.version = wdata->hdev->version;
+ wdata->input->name = WIIMOTE_NAME;
+ }
- ret = wiimote_cmd_wait(wdata);
- if (ret)
- goto unlock;
- if (wdata->state.cmd_err) {
- ret = -EIO;
- goto unlock;
+ for (iter = mods; *iter != WIIMOD_NULL; ++iter) {
+ ops = wiimod_table[*iter];
+ if (!ops->probe)
+ continue;
+
+ ret = ops->probe(ops, wdata);
+ if (ret)
+ goto error;
}
- /* enable IR cam but do not make it send data, yet */
- ret = wiimote_cmd_write(wdata, 0xb00030, data_enable,
- sizeof(data_enable));
- if (ret)
- goto unlock;
+ if (wdata->input) {
+ ret = input_register_device(wdata->input);
+ if (ret)
+ goto error;
+ }
- /* write first sensitivity block */
- ret = wiimote_cmd_write(wdata, 0xb00000, data_sens1,
- sizeof(data_sens1));
- if (ret)
- goto unlock;
+ spin_lock_irq(&wdata->state.lock);
+ wdata->state.devtype = devtype;
+ spin_unlock_irq(&wdata->state.lock);
+ return;
- /* write second sensitivity block */
- ret = wiimote_cmd_write(wdata, 0xb0001a, data_sens2,
- sizeof(data_sens2));
- if (ret)
- goto unlock;
+error:
+ for ( ; iter-- != mods; ) {
+ ops = wiimod_table[*iter];
+ if (ops->remove)
+ ops->remove(ops, wdata);
+ }
- /* put IR cam into desired state */
- switch (mode) {
- case WIIPROTO_FLAG_IR_FULL:
- format = 5;
- break;
- case WIIPROTO_FLAG_IR_EXT:
- format = 3;
- break;
- case WIIPROTO_FLAG_IR_BASIC:
- format = 1;
- break;
+ if (wdata->input) {
+ input_free_device(wdata->input);
+ wdata->input = NULL;
}
- ret = wiimote_cmd_write(wdata, 0xb00033, &format, sizeof(format));
- if (ret)
- goto unlock;
+}
- /* make IR cam send data */
- ret = wiimote_cmd_write(wdata, 0xb00030, data_fin, sizeof(data_fin));
- if (ret)
- goto unlock;
+static void wiimote_modules_unload(struct wiimote_data *wdata)
+{
+ const __u8 *mods, *iter;
+ const struct wiimod_ops *ops;
+ unsigned long flags;
+
+ mods = wiimote_devtype_mods[wdata->state.devtype];
- /* request new DRM mode compatible to IR mode */
spin_lock_irqsave(&wdata->state.lock, flags);
- wdata->state.flags &= ~WIIPROTO_FLAGS_IR;
- wdata->state.flags |= mode & WIIPROTO_FLAGS_IR;
- wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
+ wdata->state.devtype = WIIMOTE_DEV_UNKNOWN;
spin_unlock_irqrestore(&wdata->state.lock, flags);
-unlock:
- wiimote_cmd_release(wdata);
- return ret;
+ /* find end of list */
+ for (iter = mods; *iter != WIIMOD_NULL; ++iter)
+ /* empty */ ;
+
+ if (wdata->input) {
+ input_get_device(wdata->input);
+ input_unregister_device(wdata->input);
+ }
+
+ for ( ; iter-- != mods; ) {
+ ops = wiimod_table[*iter];
+ if (ops->remove)
+ ops->remove(ops, wdata);
+ }
+
+ if (wdata->input) {
+ input_put_device(wdata->input);
+ wdata->input = NULL;
+ }
}
-static enum led_brightness wiimote_leds_get(struct led_classdev *led_dev)
+/* device extension handling */
+
+static void wiimote_ext_load(struct wiimote_data *wdata, unsigned int ext)
{
- struct wiimote_data *wdata;
- struct device *dev = led_dev->dev->parent;
- int i;
unsigned long flags;
- bool value = false;
+ const struct wiimod_ops *ops;
+ int ret;
- wdata = hid_get_drvdata(container_of(dev, struct hid_device, dev));
+ ops = wiimod_ext_table[ext];
- for (i = 0; i < 4; ++i) {
- if (wdata->leds[i] == led_dev) {
- spin_lock_irqsave(&wdata->state.lock, flags);
- value = wdata->state.flags & WIIPROTO_FLAG_LED(i + 1);
- spin_unlock_irqrestore(&wdata->state.lock, flags);
- break;
- }
+ if (ops->probe) {
+ ret = ops->probe(ops, wdata);
+ if (ret)
+ ext = WIIMOTE_EXT_UNKNOWN;
}
- return value ? LED_FULL : LED_OFF;
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wdata->state.exttype = ext;
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
}
-static void wiimote_leds_set(struct led_classdev *led_dev,
- enum led_brightness value)
+static void wiimote_ext_unload(struct wiimote_data *wdata)
{
- struct wiimote_data *wdata;
- struct device *dev = led_dev->dev->parent;
- int i;
unsigned long flags;
- __u8 state, flag;
+ const struct wiimod_ops *ops;
- wdata = hid_get_drvdata(container_of(dev, struct hid_device, dev));
+ ops = wiimod_ext_table[wdata->state.exttype];
- for (i = 0; i < 4; ++i) {
- if (wdata->leds[i] == led_dev) {
- flag = WIIPROTO_FLAG_LED(i + 1);
- spin_lock_irqsave(&wdata->state.lock, flags);
- state = wdata->state.flags;
- if (value == LED_OFF)
- wiiproto_req_leds(wdata, state & ~flag);
- else
- wiiproto_req_leds(wdata, state | flag);
- spin_unlock_irqrestore(&wdata->state.lock, flags);
- break;
- }
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wdata->state.exttype = WIIMOTE_EXT_UNKNOWN;
+ wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+ if (ops->remove)
+ ops->remove(ops, wdata);
+}
+
+static void wiimote_mp_load(struct wiimote_data *wdata)
+{
+ unsigned long flags;
+ const struct wiimod_ops *ops;
+ int ret;
+ __u8 mode = 2;
+
+ ops = &wiimod_mp;
+ if (ops->probe) {
+ ret = ops->probe(ops, wdata);
+ if (ret)
+ mode = 1;
}
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wdata->state.mp = mode;
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
}
-static int wiimote_ff_play(struct input_dev *dev, void *data,
- struct ff_effect *eff)
+static void wiimote_mp_unload(struct wiimote_data *wdata)
{
- struct wiimote_data *wdata = input_get_drvdata(dev);
- __u8 value;
unsigned long flags;
+ const struct wiimod_ops *ops;
- /*
- * The wiimote supports only a single rumble motor so if any magnitude
- * is set to non-zero then we start the rumble motor. If both are set to
- * zero, we stop the rumble motor.
- */
+ if (wdata->state.mp < 2)
+ return;
- if (eff->u.rumble.strong_magnitude || eff->u.rumble.weak_magnitude)
- value = 1;
- else
- value = 0;
+ ops = &wiimod_mp;
spin_lock_irqsave(&wdata->state.lock, flags);
- wiiproto_req_rumble(wdata, value);
+ wdata->state.mp = 0;
+ wdata->state.flags &= ~WIIPROTO_FLAG_MP_USED;
spin_unlock_irqrestore(&wdata->state.lock, flags);
- return 0;
+ if (ops->remove)
+ ops->remove(ops, wdata);
}
-static int wiimote_input_open(struct input_dev *dev)
-{
- struct wiimote_data *wdata = input_get_drvdata(dev);
+/* device (re-)initialization and detection */
- return hid_hw_open(wdata->hdev);
-}
+static const char *wiimote_devtype_names[WIIMOTE_DEV_NUM] = {
+ [WIIMOTE_DEV_PENDING] = "Pending",
+ [WIIMOTE_DEV_UNKNOWN] = "Unknown",
+ [WIIMOTE_DEV_GENERIC] = "Generic",
+ [WIIMOTE_DEV_GEN10] = "Nintendo Wii Remote (Gen 1)",
+ [WIIMOTE_DEV_GEN20] = "Nintendo Wii Remote Plus (Gen 2)",
+ [WIIMOTE_DEV_BALANCE_BOARD] = "Nintendo Wii Balance Board",
+ [WIIMOTE_DEV_PRO_CONTROLLER] = "Nintendo Wii U Pro Controller",
+};
-static void wiimote_input_close(struct input_dev *dev)
+/* Try to guess the device type based on all collected information. We
+ * first try to detect by static extension types, then VID/PID and the
+ * device name. If we cannot detect the device, we use
+ * WIIMOTE_DEV_GENERIC so all modules will get probed on the device. */
+static void wiimote_init_set_type(struct wiimote_data *wdata,
+ __u8 exttype)
{
- struct wiimote_data *wdata = input_get_drvdata(dev);
+ __u8 devtype = WIIMOTE_DEV_GENERIC;
+ __u16 vendor, product;
+ const char *name;
+
+ vendor = wdata->hdev->vendor;
+ product = wdata->hdev->product;
+ name = wdata->hdev->name;
+
+ if (exttype == WIIMOTE_EXT_BALANCE_BOARD) {
+ devtype = WIIMOTE_DEV_BALANCE_BOARD;
+ goto done;
+ } else if (exttype == WIIMOTE_EXT_PRO_CONTROLLER) {
+ devtype = WIIMOTE_DEV_PRO_CONTROLLER;
+ goto done;
+ }
- hid_hw_close(wdata->hdev);
+ if (!strcmp(name, "Nintendo RVL-CNT-01")) {
+ devtype = WIIMOTE_DEV_GEN10;
+ goto done;
+ } else if (!strcmp(name, "Nintendo RVL-CNT-01-TR")) {
+ devtype = WIIMOTE_DEV_GEN20;
+ goto done;
+ } else if (!strcmp(name, "Nintendo RVL-WBC-01")) {
+ devtype = WIIMOTE_DEV_BALANCE_BOARD;
+ goto done;
+ } else if (!strcmp(name, "Nintendo RVL-CNT-01-UC")) {
+ devtype = WIIMOTE_DEV_PRO_CONTROLLER;
+ goto done;
+ }
+
+ if (vendor == USB_VENDOR_ID_NINTENDO) {
+ if (product == USB_DEVICE_ID_NINTENDO_WIIMOTE) {
+ devtype = WIIMOTE_DEV_GEN10;
+ goto done;
+ } else if (product == USB_DEVICE_ID_NINTENDO_WIIMOTE2) {
+ devtype = WIIMOTE_DEV_GEN20;
+ goto done;
+ }
+ }
+
+done:
+ if (devtype == WIIMOTE_DEV_GENERIC)
+ hid_info(wdata->hdev, "cannot detect device; NAME: %s VID: %04x PID: %04x EXT: %04x\n",
+ name, vendor, product, exttype);
+ else
+ hid_info(wdata->hdev, "detected device: %s\n",
+ wiimote_devtype_names[devtype]);
+
+ wiimote_modules_load(wdata, devtype);
}
-static int wiimote_accel_open(struct input_dev *dev)
+static void wiimote_init_detect(struct wiimote_data *wdata)
{
- struct wiimote_data *wdata = input_get_drvdata(dev);
+ __u8 exttype = WIIMOTE_EXT_NONE, extdata[6];
+ bool ext;
int ret;
- unsigned long flags;
- ret = hid_hw_open(wdata->hdev);
+ wiimote_cmd_acquire_noint(wdata);
+
+ spin_lock_irq(&wdata->state.lock);
+ wdata->state.devtype = WIIMOTE_DEV_UNKNOWN;
+ wiimote_cmd_set(wdata, WIIPROTO_REQ_SREQ, 0);
+ wiiproto_req_status(wdata);
+ spin_unlock_irq(&wdata->state.lock);
+
+ ret = wiimote_cmd_wait_noint(wdata);
if (ret)
- return ret;
+ goto out_release;
- spin_lock_irqsave(&wdata->state.lock, flags);
- wiiproto_req_accel(wdata, true);
- spin_unlock_irqrestore(&wdata->state.lock, flags);
+ spin_lock_irq(&wdata->state.lock);
+ ext = wdata->state.flags & WIIPROTO_FLAG_EXT_PLUGGED;
+ spin_unlock_irq(&wdata->state.lock);
- return 0;
+ if (!ext)
+ goto out_release;
+
+ wiimote_cmd_init_ext(wdata);
+ exttype = wiimote_cmd_read_ext(wdata, extdata);
+
+out_release:
+ wiimote_cmd_release(wdata);
+ wiimote_init_set_type(wdata, exttype);
+
+ /* schedule MP timer */
+ spin_lock_irq(&wdata->state.lock);
+ if (!(wdata->state.flags & WIIPROTO_FLAG_BUILTIN_MP) &&
+ !(wdata->state.flags & WIIPROTO_FLAG_NO_MP))
+ mod_timer(&wdata->timer, jiffies + HZ * 4);
+ spin_unlock_irq(&wdata->state.lock);
}
-static void wiimote_accel_close(struct input_dev *dev)
+/*
+ * MP hotplug events are not generated by the wiimote. Therefore, we need
+ * polling to detect it. We use a 4s interval for polling MP registers. This
+ * seems reasonable considering applications can trigger it manually via
+ * sysfs requests.
+ */
+static void wiimote_init_poll_mp(struct wiimote_data *wdata)
{
- struct wiimote_data *wdata = input_get_drvdata(dev);
- unsigned long flags;
+ bool mp;
+ __u8 mpdata[6];
- spin_lock_irqsave(&wdata->state.lock, flags);
- wiiproto_req_accel(wdata, false);
- spin_unlock_irqrestore(&wdata->state.lock, flags);
+ wiimote_cmd_acquire_noint(wdata);
+ wiimote_cmd_init_mp(wdata);
+ mp = wiimote_cmd_read_mp(wdata, mpdata);
+ wiimote_cmd_release(wdata);
- hid_hw_close(wdata->hdev);
+ /* load/unload MP module if it changed */
+ if (mp) {
+ if (!wdata->state.mp) {
+ hid_info(wdata->hdev, "detected extension: Nintendo Wii Motion Plus\n");
+ wiimote_mp_load(wdata);
+ }
+ } else if (wdata->state.mp) {
+ wiimote_mp_unload(wdata);
+ }
+
+ mod_timer(&wdata->timer, jiffies + HZ * 4);
}
-static int wiimote_ir_open(struct input_dev *dev)
+/*
+ * Check whether the wiimote is in the expected state. The extension registers
+ * may change during hotplug and initialization so we might get hotplug events
+ * that we caused by remapping some memory.
+ * We use some heuristics here to check known states. If the wiimote is in the
+ * expected state, we can ignore the hotplug event.
+ *
+ * Returns "true" if the device is in expected state, "false" if we should
+ * redo hotplug handling and extension initialization.
+ */
+static bool wiimote_init_check(struct wiimote_data *wdata)
{
- struct wiimote_data *wdata = input_get_drvdata(dev);
- int ret;
+ __u32 flags;
+ __u8 type, data[6];
+ bool ret, poll_mp;
- ret = hid_hw_open(wdata->hdev);
- if (ret)
- return ret;
+ spin_lock_irq(&wdata->state.lock);
+ flags = wdata->state.flags;
+ spin_unlock_irq(&wdata->state.lock);
- ret = wiimote_init_ir(wdata, WIIPROTO_FLAG_IR_BASIC);
- if (ret) {
- hid_hw_close(wdata->hdev);
- return ret;
+ wiimote_cmd_acquire_noint(wdata);
+
+ /* If MP is used and active, but the extension is not, we expect:
+ * read_mp_mapped() == WIIMOTE_MP_SINGLE
+ * state.flags == !EXT_ACTIVE && !MP_PLUGGED && MP_ACTIVE
+ * We do not check EXT_PLUGGED because it might change during
+ * initialization of MP without extensions.
+ * - If MP is unplugged/replugged, read_mp_mapped() fails
+ * - If EXT is plugged, MP_PLUGGED will get set */
+ if (wdata->state.exttype == WIIMOTE_EXT_NONE &&
+ wdata->state.mp > 0 && (flags & WIIPROTO_FLAG_MP_USED)) {
+ type = wiimote_cmd_read_mp_mapped(wdata);
+ ret = type == WIIMOTE_MP_SINGLE;
+
+ spin_lock_irq(&wdata->state.lock);
+ ret = ret && !(wdata->state.flags & WIIPROTO_FLAG_EXT_ACTIVE);
+ ret = ret && !(wdata->state.flags & WIIPROTO_FLAG_MP_PLUGGED);
+ ret = ret && (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE);
+ spin_unlock_irq(&wdata->state.lock);
+
+ if (!ret)
+ hid_dbg(wdata->hdev, "state left: !EXT && MP\n");
+
+ /* while MP is mapped, we get EXT_PLUGGED events */
+ poll_mp = false;
+
+ goto out_release;
}
- return 0;
+ /* If MP is unused, but the extension port is used, we expect:
+ * read_ext == state.exttype
+ * state.flags == !MP_ACTIVE && EXT_ACTIVE
+ * - If MP is plugged/unplugged, our timer detects it
+ * - If EXT is unplugged/replugged, EXT_ACTIVE will become unset */
+ if (!(flags & WIIPROTO_FLAG_MP_USED) &&
+ wdata->state.exttype != WIIMOTE_EXT_NONE) {
+ type = wiimote_cmd_read_ext(wdata, data);
+ ret = type == wdata->state.exttype;
+
+ spin_lock_irq(&wdata->state.lock);
+ ret = ret && !(wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE);
+ ret = ret && (wdata->state.flags & WIIPROTO_FLAG_EXT_ACTIVE);
+ spin_unlock_irq(&wdata->state.lock);
+
+ if (!ret)
+ hid_dbg(wdata->hdev, "state left: EXT && !MP\n");
+
+ /* poll MP for hotplug events */
+ poll_mp = true;
+
+ goto out_release;
+ }
+
+ /* If neither MP nor an extension are used, we expect:
+ * read_ext() == WIIMOTE_EXT_NONE
+ * state.flags == !MP_ACTIVE && !EXT_ACTIVE && !EXT_PLUGGED
+ * No need to perform any action in this case as everything is
+ * disabled already.
+ * - If MP is plugged/unplugged, our timer detects it
+ * - If EXT is plugged, EXT_PLUGGED will be set */
+ if (!(flags & WIIPROTO_FLAG_MP_USED) &&
+ wdata->state.exttype == WIIMOTE_EXT_NONE) {
+ type = wiimote_cmd_read_ext(wdata, data);
+ ret = type == wdata->state.exttype;
+
+ spin_lock_irq(&wdata->state.lock);
+ ret = ret && !(wdata->state.flags & WIIPROTO_FLAG_EXT_ACTIVE);
+ ret = ret && !(wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE);
+ ret = ret && !(wdata->state.flags & WIIPROTO_FLAG_EXT_PLUGGED);
+ spin_unlock_irq(&wdata->state.lock);
+
+ if (!ret)
+ hid_dbg(wdata->hdev, "state left: !EXT && !MP\n");
+
+ /* poll MP for hotplug events */
+ poll_mp = true;
+
+ goto out_release;
+ }
+
+ /* The trickiest part is if both EXT and MP are active. We cannot read
+ * the EXT ID, anymore, because MP is mapped over it. However, we use
+ * a handy trick here:
+ * - EXT_ACTIVE is unset whenever !MP_PLUGGED is sent
+ * MP_PLUGGED might be re-sent again before we are scheduled, but
+ * EXT_ACTIVE will stay unset.
+ * So it is enough to check for mp_mapped() and MP_ACTIVE and
+ * EXT_ACTIVE. EXT_PLUGGED is a sanity check. */
+ if (wdata->state.exttype != WIIMOTE_EXT_NONE &&
+ wdata->state.mp > 0 && (flags & WIIPROTO_FLAG_MP_USED)) {
+ type = wiimote_cmd_read_mp_mapped(wdata);
+ ret = type != WIIMOTE_MP_NONE;
+ ret = ret && type != WIIMOTE_MP_UNKNOWN;
+ ret = ret && type != WIIMOTE_MP_SINGLE;
+
+ spin_lock_irq(&wdata->state.lock);
+ ret = ret && (wdata->state.flags & WIIPROTO_FLAG_EXT_PLUGGED);
+ ret = ret && (wdata->state.flags & WIIPROTO_FLAG_EXT_ACTIVE);
+ ret = ret && (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE);
+ spin_unlock_irq(&wdata->state.lock);
+
+ if (!ret)
+ hid_dbg(wdata->hdev, "state left: EXT && MP\n");
+
+ /* while MP is mapped, we get EXT_PLUGGED events */
+ poll_mp = false;
+
+ goto out_release;
+ }
+
+ /* unknown state */
+ ret = false;
+
+out_release:
+ wiimote_cmd_release(wdata);
+
+ /* only poll for MP if requested and if state didn't change */
+ if (ret && poll_mp && !(flags & WIIPROTO_FLAG_BUILTIN_MP) &&
+ !(flags & WIIPROTO_FLAG_NO_MP))
+ wiimote_init_poll_mp(wdata);
+
+ return ret;
}
-static void wiimote_ir_close(struct input_dev *dev)
+static const char *wiimote_exttype_names[WIIMOTE_EXT_NUM] = {
+ [WIIMOTE_EXT_NONE] = "None",
+ [WIIMOTE_EXT_UNKNOWN] = "Unknown",
+ [WIIMOTE_EXT_NUNCHUK] = "Nintendo Wii Nunchuk",
+ [WIIMOTE_EXT_CLASSIC_CONTROLLER] = "Nintendo Wii Classic Controller",
+ [WIIMOTE_EXT_BALANCE_BOARD] = "Nintendo Wii Balance Board",
+ [WIIMOTE_EXT_PRO_CONTROLLER] = "Nintendo Wii U Pro Controller",
+};
+
+/*
+ * Handle hotplug events
+ * If we receive an hotplug event and the device-check failed, we deinitialize
+ * the extension ports, re-read all extension IDs and set the device into
+ * the desired state. This involves mapping MP into the main extension
+ * registers, setting up extension passthrough modes and initializing the
+ * requested extensions.
+ */
+static void wiimote_init_hotplug(struct wiimote_data *wdata)
{
- struct wiimote_data *wdata = input_get_drvdata(dev);
+ __u8 exttype, extdata[6], mpdata[6];
+ __u32 flags;
+ bool mp;
- wiimote_init_ir(wdata, 0);
- hid_hw_close(wdata->hdev);
+ hid_dbg(wdata->hdev, "detect extensions..\n");
+
+ wiimote_cmd_acquire_noint(wdata);
+
+ spin_lock_irq(&wdata->state.lock);
+
+ /* get state snapshot that we will then work on */
+ flags = wdata->state.flags;
+
+ /* disable event forwarding temporarily */
+ wdata->state.flags &= ~WIIPROTO_FLAG_EXT_ACTIVE;
+ wdata->state.flags &= ~WIIPROTO_FLAG_MP_ACTIVE;
+
+ spin_unlock_irq(&wdata->state.lock);
+
+ /* init extension and MP (deactivates current extension or MP) */
+ wiimote_cmd_init_ext(wdata);
+ if (flags & WIIPROTO_FLAG_NO_MP) {
+ mp = false;
+ } else {
+ wiimote_cmd_init_mp(wdata);
+ mp = wiimote_cmd_read_mp(wdata, mpdata);
+ }
+ exttype = wiimote_cmd_read_ext(wdata, extdata);
+
+ wiimote_cmd_release(wdata);
+
+ /* load/unload extension module if it changed */
+ if (exttype != wdata->state.exttype) {
+ /* unload previous extension */
+ wiimote_ext_unload(wdata);
+
+ if (exttype == WIIMOTE_EXT_UNKNOWN) {
+ hid_info(wdata->hdev, "cannot detect extension; %02x:%02x %02x:%02x %02x:%02x\n",
+ extdata[0], extdata[1], extdata[2],
+ extdata[3], extdata[4], extdata[5]);
+ } else if (exttype == WIIMOTE_EXT_NONE) {
+ spin_lock_irq(&wdata->state.lock);
+ wdata->state.exttype = WIIMOTE_EXT_NONE;
+ spin_unlock_irq(&wdata->state.lock);
+ } else {
+ hid_info(wdata->hdev, "detected extension: %s\n",
+ wiimote_exttype_names[exttype]);
+ /* try loading new extension */
+ wiimote_ext_load(wdata, exttype);
+ }
+ }
+
+ /* load/unload MP module if it changed */
+ if (mp) {
+ if (!wdata->state.mp) {
+ hid_info(wdata->hdev, "detected extension: Nintendo Wii Motion Plus\n");
+ wiimote_mp_load(wdata);
+ }
+ } else if (wdata->state.mp) {
+ wiimote_mp_unload(wdata);
+ }
+
+ /* if MP is not used, do not map or activate it */
+ if (!(flags & WIIPROTO_FLAG_MP_USED))
+ mp = false;
+
+ /* map MP into main extension registers if used */
+ if (mp) {
+ wiimote_cmd_acquire_noint(wdata);
+ wiimote_cmd_map_mp(wdata, exttype);
+ wiimote_cmd_release(wdata);
+
+ /* delete MP hotplug timer */
+ del_timer_sync(&wdata->timer);
+ } else {
+ /* reschedule MP hotplug timer */
+ if (!(flags & WIIPROTO_FLAG_BUILTIN_MP) &&
+ !(flags & WIIPROTO_FLAG_NO_MP))
+ mod_timer(&wdata->timer, jiffies + HZ * 4);
+ }
+
+ spin_lock_irq(&wdata->state.lock);
+
+ /* enable data forwarding again and set expected hotplug state */
+ if (mp) {
+ wdata->state.flags |= WIIPROTO_FLAG_MP_ACTIVE;
+ if (wdata->state.exttype == WIIMOTE_EXT_NONE) {
+ wdata->state.flags &= ~WIIPROTO_FLAG_EXT_PLUGGED;
+ wdata->state.flags &= ~WIIPROTO_FLAG_MP_PLUGGED;
+ } else {
+ wdata->state.flags &= ~WIIPROTO_FLAG_EXT_PLUGGED;
+ wdata->state.flags |= WIIPROTO_FLAG_MP_PLUGGED;
+ wdata->state.flags |= WIIPROTO_FLAG_EXT_ACTIVE;
+ }
+ } else if (wdata->state.exttype != WIIMOTE_EXT_NONE) {
+ wdata->state.flags |= WIIPROTO_FLAG_EXT_ACTIVE;
+ }
+
+ /* request status report for hotplug state updates */
+ wiiproto_req_status(wdata);
+
+ spin_unlock_irq(&wdata->state.lock);
+
+ hid_dbg(wdata->hdev, "detected extensions: MP: %d EXT: %d\n",
+ wdata->state.mp, wdata->state.exttype);
}
-static void handler_keys(struct wiimote_data *wdata, const __u8 *payload)
+static void wiimote_init_worker(struct work_struct *work)
+{
+ struct wiimote_data *wdata = container_of(work, struct wiimote_data,
+ init_worker);
+ bool changed = false;
+
+ if (wdata->state.devtype == WIIMOTE_DEV_PENDING) {
+ wiimote_init_detect(wdata);
+ changed = true;
+ }
+
+ if (changed || !wiimote_init_check(wdata))
+ wiimote_init_hotplug(wdata);
+
+ if (changed)
+ kobject_uevent(&wdata->hdev->dev.kobj, KOBJ_CHANGE);
+}
+
+void __wiimote_schedule(struct wiimote_data *wdata)
{
- input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_LEFT],
- !!(payload[0] & 0x01));
- input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_RIGHT],
- !!(payload[0] & 0x02));
- input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_DOWN],
- !!(payload[0] & 0x04));
- input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_UP],
- !!(payload[0] & 0x08));
- input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_PLUS],
- !!(payload[0] & 0x10));
- input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_TWO],
- !!(payload[1] & 0x01));
- input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_ONE],
- !!(payload[1] & 0x02));
- input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_B],
- !!(payload[1] & 0x04));
- input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_A],
- !!(payload[1] & 0x08));
- input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_MINUS],
- !!(payload[1] & 0x10));
- input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_HOME],
- !!(payload[1] & 0x80));
- input_sync(wdata->input);
+ if (!(wdata->state.flags & WIIPROTO_FLAG_EXITING))
+ schedule_work(&wdata->init_worker);
}
-static void handler_accel(struct wiimote_data *wdata, const __u8 *payload)
+static void wiimote_schedule(struct wiimote_data *wdata)
{
- __u16 x, y, z;
+ unsigned long flags;
- if (!(wdata->state.flags & WIIPROTO_FLAG_ACCEL))
- return;
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ __wiimote_schedule(wdata);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+}
- /*
- * payload is: BB BB XX YY ZZ
- * Accelerometer data is encoded into 3 10bit values. XX, YY and ZZ
- * contain the upper 8 bits of each value. The lower 2 bits are
- * contained in the buttons data BB BB.
- * Bits 6 and 7 of the first buttons byte BB is the lower 2 bits of the
- * X accel value. Bit 5 of the second buttons byte is the 2nd bit of Y
- * accel value and bit 6 is the second bit of the Z value.
- * The first bit of Y and Z values is not available and always set to 0.
- * 0x200 is returned on no movement.
- */
+static void wiimote_init_timeout(unsigned long arg)
+{
+ struct wiimote_data *wdata = (void*)arg;
- x = payload[2] << 2;
- y = payload[3] << 2;
- z = payload[4] << 2;
+ wiimote_schedule(wdata);
+}
+
+/* protocol handlers */
+
+static void handler_keys(struct wiimote_data *wdata, const __u8 *payload)
+{
+ const __u8 *iter, *mods;
+ const struct wiimod_ops *ops;
- x |= (payload[0] >> 5) & 0x3;
- y |= (payload[1] >> 4) & 0x2;
- z |= (payload[1] >> 5) & 0x2;
+ ops = wiimod_ext_table[wdata->state.exttype];
+ if (ops->in_keys) {
+ ops->in_keys(wdata, payload);
+ return;
+ }
- input_report_abs(wdata->accel, ABS_RX, x - 0x200);
- input_report_abs(wdata->accel, ABS_RY, y - 0x200);
- input_report_abs(wdata->accel, ABS_RZ, z - 0x200);
- input_sync(wdata->accel);
+ mods = wiimote_devtype_mods[wdata->state.devtype];
+ for (iter = mods; *iter != WIIMOD_NULL; ++iter) {
+ ops = wiimod_table[*iter];
+ if (ops->in_keys) {
+ ops->in_keys(wdata, payload);
+ break;
+ }
+ }
}
-#define ir_to_input0(wdata, ir, packed) __ir_to_input((wdata), (ir), (packed), \
- ABS_HAT0X, ABS_HAT0Y)
-#define ir_to_input1(wdata, ir, packed) __ir_to_input((wdata), (ir), (packed), \
- ABS_HAT1X, ABS_HAT1Y)
-#define ir_to_input2(wdata, ir, packed) __ir_to_input((wdata), (ir), (packed), \
- ABS_HAT2X, ABS_HAT2Y)
-#define ir_to_input3(wdata, ir, packed) __ir_to_input((wdata), (ir), (packed), \
- ABS_HAT3X, ABS_HAT3Y)
+static void handler_accel(struct wiimote_data *wdata, const __u8 *payload)
+{
+ const __u8 *iter, *mods;
+ const struct wiimod_ops *ops;
+
+ ops = wiimod_ext_table[wdata->state.exttype];
+ if (ops->in_accel) {
+ ops->in_accel(wdata, payload);
+ return;
+ }
-static void __ir_to_input(struct wiimote_data *wdata, const __u8 *ir,
- bool packed, __u8 xid, __u8 yid)
+ mods = wiimote_devtype_mods[wdata->state.devtype];
+ for (iter = mods; *iter != WIIMOD_NULL; ++iter) {
+ ops = wiimod_table[*iter];
+ if (ops->in_accel) {
+ ops->in_accel(wdata, payload);
+ break;
+ }
+ }
+}
+
+static bool valid_ext_handler(const struct wiimod_ops *ops, size_t len)
{
- __u16 x, y;
+ if (!ops->in_ext)
+ return false;
+ if ((ops->flags & WIIMOD_FLAG_EXT8) && len < 8)
+ return false;
+ if ((ops->flags & WIIMOD_FLAG_EXT16) && len < 16)
+ return false;
+
+ return true;
+}
- if (!(wdata->state.flags & WIIPROTO_FLAGS_IR))
+static void handler_ext(struct wiimote_data *wdata, const __u8 *payload,
+ size_t len)
+{
+ static const __u8 invalid[21] = { 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff,
+ 0xff };
+ const __u8 *iter, *mods;
+ const struct wiimod_ops *ops;
+ bool is_mp;
+
+ if (len > 21)
+ len = 21;
+ if (len < 6 || !memcmp(payload, invalid, len))
return;
- /*
- * Basic IR data is encoded into 3 bytes. The first two bytes are the
- * lower 8 bit of the X/Y data, the 3rd byte contains the upper 2 bits
- * of both.
- * If data is packed, then the 3rd byte is put first and slightly
- * reordered. This allows to interleave packed and non-packed data to
- * have two IR sets in 5 bytes instead of 6.
- * The resulting 10bit X/Y values are passed to the ABS_HATXY input dev.
- */
+ /* if MP is active, track MP slot hotplugging */
+ if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
+ /* this bit is set for invalid events (eg. during hotplug) */
+ if (payload[5] & 0x01)
+ return;
+
+ if (payload[4] & 0x01) {
+ if (!(wdata->state.flags & WIIPROTO_FLAG_MP_PLUGGED)) {
+ hid_dbg(wdata->hdev, "MP hotplug: 1\n");
+ wdata->state.flags |= WIIPROTO_FLAG_MP_PLUGGED;
+ __wiimote_schedule(wdata);
+ }
+ } else {
+ if (wdata->state.flags & WIIPROTO_FLAG_MP_PLUGGED) {
+ hid_dbg(wdata->hdev, "MP hotplug: 0\n");
+ wdata->state.flags &= ~WIIPROTO_FLAG_MP_PLUGGED;
+ wdata->state.flags &= ~WIIPROTO_FLAG_EXT_ACTIVE;
+ __wiimote_schedule(wdata);
+ }
+ }
- if (packed) {
- x = ir[1] | ((ir[0] & 0x03) << 8);
- y = ir[2] | ((ir[0] & 0x0c) << 6);
+ /* detect MP data that is sent interleaved with EXT data */
+ is_mp = payload[5] & 0x02;
} else {
- x = ir[0] | ((ir[2] & 0x30) << 4);
- y = ir[1] | ((ir[2] & 0xc0) << 2);
+ is_mp = false;
+ }
+
+ /* ignore EXT events if no extension is active */
+ if (!(wdata->state.flags & WIIPROTO_FLAG_EXT_ACTIVE) && !is_mp)
+ return;
+
+ /* try forwarding to extension handler, first */
+ ops = wiimod_ext_table[wdata->state.exttype];
+ if (is_mp && ops->in_mp) {
+ ops->in_mp(wdata, payload);
+ return;
+ } else if (!is_mp && valid_ext_handler(ops, len)) {
+ ops->in_ext(wdata, payload);
+ return;
+ }
+
+ /* try forwarding to MP handler */
+ ops = &wiimod_mp;
+ if (is_mp && ops->in_mp) {
+ ops->in_mp(wdata, payload);
+ return;
+ } else if (!is_mp && valid_ext_handler(ops, len)) {
+ ops->in_ext(wdata, payload);
+ return;
}
- input_report_abs(wdata->ir, xid, x);
- input_report_abs(wdata->ir, yid, y);
+ /* try forwarding to loaded modules */
+ mods = wiimote_devtype_mods[wdata->state.devtype];
+ for (iter = mods; *iter != WIIMOD_NULL; ++iter) {
+ ops = wiimod_table[*iter];
+ if (is_mp && ops->in_mp) {
+ ops->in_mp(wdata, payload);
+ return;
+ } else if (!is_mp && valid_ext_handler(ops, len)) {
+ ops->in_ext(wdata, payload);
+ return;
+ }
+ }
+}
+
+#define ir_to_input0(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 0)
+#define ir_to_input1(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 1)
+#define ir_to_input2(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 2)
+#define ir_to_input3(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 3)
+
+static void handler_ir(struct wiimote_data *wdata, const __u8 *payload,
+ bool packed, unsigned int id)
+{
+ const __u8 *iter, *mods;
+ const struct wiimod_ops *ops;
+
+ ops = wiimod_ext_table[wdata->state.exttype];
+ if (ops->in_ir) {
+ ops->in_ir(wdata, payload, packed, id);
+ return;
+ }
+
+ mods = wiimote_devtype_mods[wdata->state.devtype];
+ for (iter = mods; *iter != WIIMOD_NULL; ++iter) {
+ ops = wiimod_table[*iter];
+ if (ops->in_ir) {
+ ops->in_ir(wdata, payload, packed, id);
+ break;
+ }
+ }
}
/* reduced status report with "BB BB" key data only */
{
handler_status_K(wdata, payload);
- wiiext_event(wdata, payload[2] & 0x02);
+ /* update extension status */
+ if (payload[2] & 0x02) {
+ if (!(wdata->state.flags & WIIPROTO_FLAG_EXT_PLUGGED)) {
+ hid_dbg(wdata->hdev, "EXT hotplug: 1\n");
+ wdata->state.flags |= WIIPROTO_FLAG_EXT_PLUGGED;
+ __wiimote_schedule(wdata);
+ }
+ } else {
+ if (wdata->state.flags & WIIPROTO_FLAG_EXT_PLUGGED) {
+ hid_dbg(wdata->hdev, "EXT hotplug: 0\n");
+ wdata->state.flags &= ~WIIPROTO_FLAG_EXT_PLUGGED;
+ wdata->state.flags &= ~WIIPROTO_FLAG_MP_PLUGGED;
+ wdata->state.flags &= ~WIIPROTO_FLAG_EXT_ACTIVE;
+ wdata->state.flags &= ~WIIPROTO_FLAG_MP_ACTIVE;
+ __wiimote_schedule(wdata);
+ }
+ }
- if (wiimote_cmd_pending(wdata, WIIPROTO_REQ_SREQ, 0)) {
- wdata->state.cmd_battery = payload[5];
+ wdata->state.cmd_battery = payload[5];
+ if (wiimote_cmd_pending(wdata, WIIPROTO_REQ_SREQ, 0))
wiimote_cmd_complete(wdata);
- }
}
/* reduced generic report with "BB BB" key data only */
static void handler_drm_KE(struct wiimote_data *wdata, const __u8 *payload)
{
handler_keys(wdata, payload);
- wiiext_handle(wdata, &payload[2]);
+ handler_ext(wdata, &payload[2], 8);
}
static void handler_drm_KAI(struct wiimote_data *wdata, const __u8 *payload)
ir_to_input1(wdata, &payload[8], false);
ir_to_input2(wdata, &payload[11], false);
ir_to_input3(wdata, &payload[14], false);
- input_sync(wdata->ir);
}
static void handler_drm_KEE(struct wiimote_data *wdata, const __u8 *payload)
{
handler_keys(wdata, payload);
- wiiext_handle(wdata, &payload[2]);
+ handler_ext(wdata, &payload[2], 19);
}
static void handler_drm_KIE(struct wiimote_data *wdata, const __u8 *payload)
ir_to_input1(wdata, &payload[4], true);
ir_to_input2(wdata, &payload[7], false);
ir_to_input3(wdata, &payload[9], true);
- input_sync(wdata->ir);
- wiiext_handle(wdata, &payload[12]);
+ handler_ext(wdata, &payload[12], 9);
}
static void handler_drm_KAE(struct wiimote_data *wdata, const __u8 *payload)
{
handler_keys(wdata, payload);
handler_accel(wdata, payload);
- wiiext_handle(wdata, &payload[5]);
+ handler_ext(wdata, &payload[5], 16);
}
static void handler_drm_KAIE(struct wiimote_data *wdata, const __u8 *payload)
ir_to_input1(wdata, &payload[7], true);
ir_to_input2(wdata, &payload[10], false);
ir_to_input3(wdata, &payload[12], true);
- input_sync(wdata->ir);
- wiiext_handle(wdata, &payload[15]);
+ handler_ext(wdata, &payload[15], 6);
}
static void handler_drm_E(struct wiimote_data *wdata, const __u8 *payload)
{
- wiiext_handle(wdata, payload);
+ handler_ext(wdata, payload, 21);
}
static void handler_drm_SKAI1(struct wiimote_data *wdata, const __u8 *payload)
ir_to_input0(wdata, &payload[3], false);
ir_to_input1(wdata, &payload[12], false);
- input_sync(wdata->ir);
}
static void handler_drm_SKAI2(struct wiimote_data *wdata, const __u8 *payload)
ir_to_input2(wdata, &payload[3], false);
ir_to_input3(wdata, &payload[12], false);
- input_sync(wdata->ir);
}
struct wiiproto_handler {
return 0;
}
-static void wiimote_leds_destroy(struct wiimote_data *wdata)
+static ssize_t wiimote_ext_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
{
- int i;
- struct led_classdev *led;
-
- for (i = 0; i < 4; ++i) {
- if (wdata->leds[i]) {
- led = wdata->leds[i];
- wdata->leds[i] = NULL;
- led_classdev_unregister(led);
- kfree(led);
- }
+ struct wiimote_data *wdata = dev_to_wii(dev);
+ __u8 type;
+ unsigned long flags;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ type = wdata->state.exttype;
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+ switch (type) {
+ case WIIMOTE_EXT_NONE:
+ return sprintf(buf, "none\n");
+ case WIIMOTE_EXT_NUNCHUK:
+ return sprintf(buf, "nunchuk\n");
+ case WIIMOTE_EXT_CLASSIC_CONTROLLER:
+ return sprintf(buf, "classic\n");
+ case WIIMOTE_EXT_BALANCE_BOARD:
+ return sprintf(buf, "balanceboard\n");
+ case WIIMOTE_EXT_PRO_CONTROLLER:
+ return sprintf(buf, "procontroller\n");
+ case WIIMOTE_EXT_UNKNOWN:
+ /* fallthrough */
+ default:
+ return sprintf(buf, "unknown\n");
}
}
-static int wiimote_leds_create(struct wiimote_data *wdata)
+static ssize_t wiimote_ext_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
{
- int i, ret;
- struct device *dev = &wdata->hdev->dev;
- size_t namesz = strlen(dev_name(dev)) + 9;
- struct led_classdev *led;
- char *name;
+ struct wiimote_data *wdata = dev_to_wii(dev);
- for (i = 0; i < 4; ++i) {
- led = kzalloc(sizeof(struct led_classdev) + namesz, GFP_KERNEL);
- if (!led) {
- ret = -ENOMEM;
- goto err;
- }
- name = (void*)&led[1];
- snprintf(name, namesz, "%s:blue:p%d", dev_name(dev), i);
- led->name = name;
- led->brightness = 0;
- led->max_brightness = 1;
- led->brightness_get = wiimote_leds_get;
- led->brightness_set = wiimote_leds_set;
-
- ret = led_classdev_register(dev, led);
- if (ret) {
- kfree(led);
- goto err;
- }
- wdata->leds[i] = led;
+ if (!strcmp(buf, "scan")) {
+ wiimote_schedule(wdata);
+ } else {
+ return -EINVAL;
}
- return 0;
+ return strnlen(buf, PAGE_SIZE);
+}
-err:
- wiimote_leds_destroy(wdata);
- return ret;
+static DEVICE_ATTR(extension, S_IRUGO | S_IWUSR | S_IWGRP, wiimote_ext_show,
+ wiimote_ext_store);
+
+static ssize_t wiimote_dev_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct wiimote_data *wdata = dev_to_wii(dev);
+ __u8 type;
+ unsigned long flags;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ type = wdata->state.devtype;
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+ switch (type) {
+ case WIIMOTE_DEV_GENERIC:
+ return sprintf(buf, "generic\n");
+ case WIIMOTE_DEV_GEN10:
+ return sprintf(buf, "gen10\n");
+ case WIIMOTE_DEV_GEN20:
+ return sprintf(buf, "gen20\n");
+ case WIIMOTE_DEV_BALANCE_BOARD:
+ return sprintf(buf, "balanceboard\n");
+ case WIIMOTE_DEV_PRO_CONTROLLER:
+ return sprintf(buf, "procontroller\n");
+ case WIIMOTE_DEV_PENDING:
+ return sprintf(buf, "pending\n");
+ case WIIMOTE_DEV_UNKNOWN:
+ /* fallthrough */
+ default:
+ return sprintf(buf, "unknown\n");
+ }
}
+static DEVICE_ATTR(devtype, S_IRUGO, wiimote_dev_show, NULL);
+
static struct wiimote_data *wiimote_create(struct hid_device *hdev)
{
struct wiimote_data *wdata;
- int i;
wdata = kzalloc(sizeof(*wdata), GFP_KERNEL);
if (!wdata)
return NULL;
- wdata->input = input_allocate_device();
- if (!wdata->input)
- goto err;
-
wdata->hdev = hdev;
hid_set_drvdata(hdev, wdata);
- input_set_drvdata(wdata->input, wdata);
- wdata->input->open = wiimote_input_open;
- wdata->input->close = wiimote_input_close;
- wdata->input->dev.parent = &wdata->hdev->dev;
- wdata->input->id.bustype = wdata->hdev->bus;
- wdata->input->id.vendor = wdata->hdev->vendor;
- wdata->input->id.product = wdata->hdev->product;
- wdata->input->id.version = wdata->hdev->version;
- wdata->input->name = WIIMOTE_NAME;
-
- set_bit(EV_KEY, wdata->input->evbit);
- for (i = 0; i < WIIPROTO_KEY_COUNT; ++i)
- set_bit(wiiproto_keymap[i], wdata->input->keybit);
-
- set_bit(FF_RUMBLE, wdata->input->ffbit);
- if (input_ff_create_memless(wdata->input, NULL, wiimote_ff_play))
- goto err_input;
-
- wdata->accel = input_allocate_device();
- if (!wdata->accel)
- goto err_input;
-
- input_set_drvdata(wdata->accel, wdata);
- wdata->accel->open = wiimote_accel_open;
- wdata->accel->close = wiimote_accel_close;
- wdata->accel->dev.parent = &wdata->hdev->dev;
- wdata->accel->id.bustype = wdata->hdev->bus;
- wdata->accel->id.vendor = wdata->hdev->vendor;
- wdata->accel->id.product = wdata->hdev->product;
- wdata->accel->id.version = wdata->hdev->version;
- wdata->accel->name = WIIMOTE_NAME " Accelerometer";
-
- set_bit(EV_ABS, wdata->accel->evbit);
- set_bit(ABS_RX, wdata->accel->absbit);
- set_bit(ABS_RY, wdata->accel->absbit);
- set_bit(ABS_RZ, wdata->accel->absbit);
- input_set_abs_params(wdata->accel, ABS_RX, -500, 500, 2, 4);
- input_set_abs_params(wdata->accel, ABS_RY, -500, 500, 2, 4);
- input_set_abs_params(wdata->accel, ABS_RZ, -500, 500, 2, 4);
-
- wdata->ir = input_allocate_device();
- if (!wdata->ir)
- goto err_ir;
-
- input_set_drvdata(wdata->ir, wdata);
- wdata->ir->open = wiimote_ir_open;
- wdata->ir->close = wiimote_ir_close;
- wdata->ir->dev.parent = &wdata->hdev->dev;
- wdata->ir->id.bustype = wdata->hdev->bus;
- wdata->ir->id.vendor = wdata->hdev->vendor;
- wdata->ir->id.product = wdata->hdev->product;
- wdata->ir->id.version = wdata->hdev->version;
- wdata->ir->name = WIIMOTE_NAME " IR";
-
- set_bit(EV_ABS, wdata->ir->evbit);
- set_bit(ABS_HAT0X, wdata->ir->absbit);
- set_bit(ABS_HAT0Y, wdata->ir->absbit);
- set_bit(ABS_HAT1X, wdata->ir->absbit);
- set_bit(ABS_HAT1Y, wdata->ir->absbit);
- set_bit(ABS_HAT2X, wdata->ir->absbit);
- set_bit(ABS_HAT2Y, wdata->ir->absbit);
- set_bit(ABS_HAT3X, wdata->ir->absbit);
- set_bit(ABS_HAT3Y, wdata->ir->absbit);
- input_set_abs_params(wdata->ir, ABS_HAT0X, 0, 1023, 2, 4);
- input_set_abs_params(wdata->ir, ABS_HAT0Y, 0, 767, 2, 4);
- input_set_abs_params(wdata->ir, ABS_HAT1X, 0, 1023, 2, 4);
- input_set_abs_params(wdata->ir, ABS_HAT1Y, 0, 767, 2, 4);
- input_set_abs_params(wdata->ir, ABS_HAT2X, 0, 1023, 2, 4);
- input_set_abs_params(wdata->ir, ABS_HAT2Y, 0, 767, 2, 4);
- input_set_abs_params(wdata->ir, ABS_HAT3X, 0, 1023, 2, 4);
- input_set_abs_params(wdata->ir, ABS_HAT3Y, 0, 767, 2, 4);
-
- spin_lock_init(&wdata->qlock);
- INIT_WORK(&wdata->worker, wiimote_worker);
+ spin_lock_init(&wdata->queue.lock);
+ INIT_WORK(&wdata->queue.worker, wiimote_queue_worker);
spin_lock_init(&wdata->state.lock);
init_completion(&wdata->state.ready);
mutex_init(&wdata->state.sync);
wdata->state.drm = WIIPROTO_REQ_DRM_K;
+ wdata->state.cmd_battery = 0xff;
- return wdata;
+ INIT_WORK(&wdata->init_worker, wiimote_init_worker);
+ setup_timer(&wdata->timer, wiimote_init_timeout, (long)wdata);
-err_ir:
- input_free_device(wdata->accel);
-err_input:
- input_free_device(wdata->input);
-err:
- kfree(wdata);
- return NULL;
+ return wdata;
}
static void wiimote_destroy(struct wiimote_data *wdata)
{
+ unsigned long flags;
+
wiidebug_deinit(wdata);
- wiiext_deinit(wdata);
- wiimote_leds_destroy(wdata);
-
- power_supply_unregister(&wdata->battery);
- kfree(wdata->battery.name);
- input_unregister_device(wdata->accel);
- input_unregister_device(wdata->ir);
- input_unregister_device(wdata->input);
- cancel_work_sync(&wdata->worker);
+
+ /* prevent init_worker from being scheduled again */
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wdata->state.flags |= WIIPROTO_FLAG_EXITING;
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+ cancel_work_sync(&wdata->init_worker);
+ del_timer_sync(&wdata->timer);
+
+ device_remove_file(&wdata->hdev->dev, &dev_attr_devtype);
+ device_remove_file(&wdata->hdev->dev, &dev_attr_extension);
+
+ wiimote_mp_unload(wdata);
+ wiimote_ext_unload(wdata);
+ wiimote_modules_unload(wdata);
+ cancel_work_sync(&wdata->queue.worker);
+ hid_hw_close(wdata->hdev);
hid_hw_stop(wdata->hdev);
kfree(wdata);
goto err;
}
- ret = input_register_device(wdata->accel);
+ ret = hid_hw_open(hdev);
if (ret) {
- hid_err(hdev, "Cannot register input device\n");
+ hid_err(hdev, "cannot start hardware I/O\n");
goto err_stop;
}
- ret = input_register_device(wdata->ir);
- if (ret) {
- hid_err(hdev, "Cannot register input device\n");
- goto err_ir;
- }
-
- ret = input_register_device(wdata->input);
+ ret = device_create_file(&hdev->dev, &dev_attr_extension);
if (ret) {
- hid_err(hdev, "Cannot register input device\n");
- goto err_input;
- }
-
- wdata->battery.properties = wiimote_battery_props;
- wdata->battery.num_properties = ARRAY_SIZE(wiimote_battery_props);
- wdata->battery.get_property = wiimote_battery_get_property;
- wdata->battery.type = POWER_SUPPLY_TYPE_BATTERY;
- wdata->battery.use_for_apm = 0;
- wdata->battery.name = kasprintf(GFP_KERNEL, "wiimote_battery_%s",
- wdata->hdev->uniq);
- if (!wdata->battery.name) {
- ret = -ENOMEM;
- goto err_battery_name;
+ hid_err(hdev, "cannot create sysfs attribute\n");
+ goto err_close;
}
- ret = power_supply_register(&wdata->hdev->dev, &wdata->battery);
+ ret = device_create_file(&hdev->dev, &dev_attr_devtype);
if (ret) {
- hid_err(hdev, "Cannot register battery device\n");
- goto err_battery;
+ hid_err(hdev, "cannot create sysfs attribute\n");
+ goto err_ext;
}
- power_supply_powers(&wdata->battery, &hdev->dev);
-
- ret = wiimote_leds_create(wdata);
- if (ret)
- goto err_free;
-
- ret = wiiext_init(wdata);
- if (ret)
- goto err_free;
-
ret = wiidebug_init(wdata);
if (ret)
goto err_free;
hid_info(hdev, "New device registered\n");
- /* by default set led1 after device initialization */
- spin_lock_irq(&wdata->state.lock);
- wiiproto_req_leds(wdata, WIIPROTO_FLAG_LED1);
- spin_unlock_irq(&wdata->state.lock);
+ /* schedule device detection */
+ wiimote_schedule(wdata);
return 0;
wiimote_destroy(wdata);
return ret;
-err_battery:
- kfree(wdata->battery.name);
-err_battery_name:
- input_unregister_device(wdata->input);
- wdata->input = NULL;
-err_input:
- input_unregister_device(wdata->ir);
- wdata->ir = NULL;
-err_ir:
- input_unregister_device(wdata->accel);
- wdata->accel = NULL;
+err_ext:
+ device_remove_file(&wdata->hdev->dev, &dev_attr_extension);
+err_close:
+ hid_hw_close(hdev);
err_stop:
hid_hw_stop(hdev);
err:
input_free_device(wdata->ir);
input_free_device(wdata->accel);
- input_free_device(wdata->input);
kfree(wdata);
return ret;
}
MODULE_LICENSE("GPL");
MODULE_AUTHOR("David Herrmann <dh.herrmann@gmail.com>");
-MODULE_DESCRIPTION(WIIMOTE_NAME " Device Driver");
+MODULE_DESCRIPTION("Driver for Nintendo Wii / Wii U peripherals");
/*
- * Debug support for HID Nintendo Wiimote devices
- * Copyright (c) 2011 David Herrmann
+ * Debug support for HID Nintendo Wii / Wii U peripherals
+ * Copyright (c) 2011-2013 David Herrmann <dh.herrmann@gmail.com>
*/
/*
static ssize_t wiidebug_drm_write(struct file *f, const char __user *u,
size_t s, loff_t *off)
{
- struct wiimote_debug *dbg = f->private_data;
+ struct seq_file *sf = f->private_data;
+ struct wiimote_debug *dbg = sf->private;
unsigned long flags;
char buf[16];
ssize_t len;
if (copy_from_user(buf, u, len))
return -EFAULT;
- buf[15] = 0;
+ buf[len] = 0;
for (i = 0; i < WIIPROTO_REQ_MAX; ++i) {
if (!wiidebug_drmmap[i])
}
if (i == WIIPROTO_REQ_MAX)
- i = simple_strtoul(buf, NULL, 10);
+ i = simple_strtoul(buf, NULL, 16);
spin_lock_irqsave(&dbg->wdata->state.lock, flags);
+ dbg->wdata->state.flags &= ~WIIPROTO_FLAG_DRM_LOCKED;
wiiproto_req_drm(dbg->wdata, (__u8) i);
+ if (i != WIIPROTO_REQ_NULL)
+ dbg->wdata->state.flags |= WIIPROTO_FLAG_DRM_LOCKED;
spin_unlock_irqrestore(&dbg->wdata->state.lock, flags);
return len;
+++ /dev/null
-/*
- * HID driver for Nintendo Wiimote extension devices
- * Copyright (c) 2011 David Herrmann
- */
-
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- */
-
-#include <linux/atomic.h>
-#include <linux/module.h>
-#include <linux/spinlock.h>
-#include <linux/workqueue.h>
-#include "hid-wiimote.h"
-
-struct wiimote_ext {
- struct wiimote_data *wdata;
- struct work_struct worker;
- struct input_dev *input;
- struct input_dev *mp_input;
-
- atomic_t opened;
- atomic_t mp_opened;
- bool plugged;
- bool mp_plugged;
- bool motionp;
- __u8 ext_type;
- __u16 calib[4][3];
-};
-
-enum wiiext_type {
- WIIEXT_NONE, /* placeholder */
- WIIEXT_CLASSIC, /* Nintendo classic controller */
- WIIEXT_NUNCHUCK, /* Nintendo nunchuck controller */
- WIIEXT_BALANCE_BOARD, /* Nintendo balance board controller */
-};
-
-enum wiiext_keys {
- WIIEXT_KEY_C,
- WIIEXT_KEY_Z,
- WIIEXT_KEY_A,
- WIIEXT_KEY_B,
- WIIEXT_KEY_X,
- WIIEXT_KEY_Y,
- WIIEXT_KEY_ZL,
- WIIEXT_KEY_ZR,
- WIIEXT_KEY_PLUS,
- WIIEXT_KEY_MINUS,
- WIIEXT_KEY_HOME,
- WIIEXT_KEY_LEFT,
- WIIEXT_KEY_RIGHT,
- WIIEXT_KEY_UP,
- WIIEXT_KEY_DOWN,
- WIIEXT_KEY_LT,
- WIIEXT_KEY_RT,
- WIIEXT_KEY_COUNT
-};
-
-static __u16 wiiext_keymap[] = {
- BTN_C, /* WIIEXT_KEY_C */
- BTN_Z, /* WIIEXT_KEY_Z */
- BTN_A, /* WIIEXT_KEY_A */
- BTN_B, /* WIIEXT_KEY_B */
- BTN_X, /* WIIEXT_KEY_X */
- BTN_Y, /* WIIEXT_KEY_Y */
- BTN_TL2, /* WIIEXT_KEY_ZL */
- BTN_TR2, /* WIIEXT_KEY_ZR */
- KEY_NEXT, /* WIIEXT_KEY_PLUS */
- KEY_PREVIOUS, /* WIIEXT_KEY_MINUS */
- BTN_MODE, /* WIIEXT_KEY_HOME */
- KEY_LEFT, /* WIIEXT_KEY_LEFT */
- KEY_RIGHT, /* WIIEXT_KEY_RIGHT */
- KEY_UP, /* WIIEXT_KEY_UP */
- KEY_DOWN, /* WIIEXT_KEY_DOWN */
- BTN_TL, /* WIIEXT_KEY_LT */
- BTN_TR, /* WIIEXT_KEY_RT */
-};
-
-/* disable all extensions */
-static void ext_disable(struct wiimote_ext *ext)
-{
- unsigned long flags;
- __u8 wmem = 0x55;
-
- if (!wiimote_cmd_acquire(ext->wdata)) {
- wiimote_cmd_write(ext->wdata, 0xa400f0, &wmem, sizeof(wmem));
- wiimote_cmd_release(ext->wdata);
- }
-
- spin_lock_irqsave(&ext->wdata->state.lock, flags);
- ext->motionp = false;
- ext->ext_type = WIIEXT_NONE;
- wiiproto_req_drm(ext->wdata, WIIPROTO_REQ_NULL);
- spin_unlock_irqrestore(&ext->wdata->state.lock, flags);
-}
-
-static bool motionp_read(struct wiimote_ext *ext)
-{
- __u8 rmem[2], wmem;
- ssize_t ret;
- bool avail = false;
-
- if (!atomic_read(&ext->mp_opened))
- return false;
-
- if (wiimote_cmd_acquire(ext->wdata))
- return false;
-
- /* initialize motion plus */
- wmem = 0x55;
- ret = wiimote_cmd_write(ext->wdata, 0xa600f0, &wmem, sizeof(wmem));
- if (ret)
- goto error;
-
- /* read motion plus ID */
- ret = wiimote_cmd_read(ext->wdata, 0xa600fe, rmem, 2);
- if (ret == 2 || rmem[1] == 0x5)
- avail = true;
-
-error:
- wiimote_cmd_release(ext->wdata);
- return avail;
-}
-
-static __u8 ext_read(struct wiimote_ext *ext)
-{
- ssize_t ret;
- __u8 buf[24], i, j, offs = 0;
- __u8 rmem[2], wmem;
- __u8 type = WIIEXT_NONE;
-
- if (!ext->plugged || !atomic_read(&ext->opened))
- return WIIEXT_NONE;
-
- if (wiimote_cmd_acquire(ext->wdata))
- return WIIEXT_NONE;
-
- /* initialize extension */
- wmem = 0x55;
- ret = wiimote_cmd_write(ext->wdata, 0xa400f0, &wmem, sizeof(wmem));
- if (!ret) {
- /* disable encryption */
- wmem = 0x0;
- wiimote_cmd_write(ext->wdata, 0xa400fb, &wmem, sizeof(wmem));
- }
-
- /* read extension ID */
- ret = wiimote_cmd_read(ext->wdata, 0xa400fe, rmem, 2);
- if (ret == 2) {
- if (rmem[0] == 0 && rmem[1] == 0)
- type = WIIEXT_NUNCHUCK;
- else if (rmem[0] == 0x01 && rmem[1] == 0x01)
- type = WIIEXT_CLASSIC;
- else if (rmem[0] == 0x04 && rmem[1] == 0x02)
- type = WIIEXT_BALANCE_BOARD;
- }
-
- /* get balance board calibration data */
- if (type == WIIEXT_BALANCE_BOARD) {
- ret = wiimote_cmd_read(ext->wdata, 0xa40024, buf, 12);
- ret += wiimote_cmd_read(ext->wdata, 0xa40024 + 12,
- buf + 12, 12);
-
- if (ret != 24) {
- type = WIIEXT_NONE;
- } else {
- for (i = 0; i < 3; i++) {
- for (j = 0; j < 4; j++) {
- ext->calib[j][i] = buf[offs];
- ext->calib[j][i] <<= 8;
- ext->calib[j][i] |= buf[offs + 1];
- offs += 2;
- }
- }
- }
- }
-
- wiimote_cmd_release(ext->wdata);
-
- return type;
-}
-
-static void ext_enable(struct wiimote_ext *ext, bool motionp, __u8 ext_type)
-{
- unsigned long flags;
- __u8 wmem;
- int ret;
-
- if (motionp) {
- if (wiimote_cmd_acquire(ext->wdata))
- return;
-
- if (ext_type == WIIEXT_CLASSIC)
- wmem = 0x07;
- else if (ext_type == WIIEXT_NUNCHUCK)
- wmem = 0x05;
- else
- wmem = 0x04;
-
- ret = wiimote_cmd_write(ext->wdata, 0xa600fe, &wmem, sizeof(wmem));
- wiimote_cmd_release(ext->wdata);
- if (ret)
- return;
- }
-
- spin_lock_irqsave(&ext->wdata->state.lock, flags);
- ext->motionp = motionp;
- ext->ext_type = ext_type;
- wiiproto_req_drm(ext->wdata, WIIPROTO_REQ_NULL);
- spin_unlock_irqrestore(&ext->wdata->state.lock, flags);
-}
-
-static void wiiext_worker(struct work_struct *work)
-{
- struct wiimote_ext *ext = container_of(work, struct wiimote_ext,
- worker);
- bool motionp;
- __u8 ext_type;
-
- ext_disable(ext);
- motionp = motionp_read(ext);
- ext_type = ext_read(ext);
- ext_enable(ext, motionp, ext_type);
-}
-
-/* schedule work only once, otherwise mark for reschedule */
-static void wiiext_schedule(struct wiimote_ext *ext)
-{
- schedule_work(&ext->worker);
-}
-
-/*
- * Reacts on extension port events
- * Whenever the driver gets an event from the wiimote that an extension has been
- * plugged or unplugged, this funtion shall be called. It checks what extensions
- * are connected and initializes and activates them.
- * This can be called in atomic context. The initialization is done in a
- * separate worker thread. The state.lock spinlock must be held by the caller.
- */
-void wiiext_event(struct wiimote_data *wdata, bool plugged)
-{
- if (!wdata->ext)
- return;
-
- if (wdata->ext->plugged == plugged)
- return;
-
- wdata->ext->plugged = plugged;
-
- if (!plugged)
- wdata->ext->mp_plugged = false;
-
- /*
- * We need to call wiiext_schedule(wdata->ext) here, however, the
- * extension initialization logic is not fully understood and so
- * automatic initialization is not supported, yet.
- */
-}
-
-/*
- * Returns true if the current DRM mode should contain extension data and false
- * if there is no interest in extension data.
- * All supported extensions send 6 byte extension data so any DRM that contains
- * extension bytes is fine.
- * The caller must hold the state.lock spinlock.
- */
-bool wiiext_active(struct wiimote_data *wdata)
-{
- if (!wdata->ext)
- return false;
-
- return wdata->ext->motionp || wdata->ext->ext_type;
-}
-
-static void handler_motionp(struct wiimote_ext *ext, const __u8 *payload)
-{
- __s32 x, y, z;
- bool plugged;
-
- /* | 8 7 6 5 4 3 | 2 | 1 |
- * -----+------------------------------+-----+-----+
- * 1 | Yaw Speed <7:0> |
- * 2 | Roll Speed <7:0> |
- * 3 | Pitch Speed <7:0> |
- * -----+------------------------------+-----+-----+
- * 4 | Yaw Speed <13:8> | Yaw |Pitch|
- * -----+------------------------------+-----+-----+
- * 5 | Roll Speed <13:8> |Roll | Ext |
- * -----+------------------------------+-----+-----+
- * 6 | Pitch Speed <13:8> | 1 | 0 |
- * -----+------------------------------+-----+-----+
- * The single bits Yaw, Roll, Pitch in the lower right corner specify
- * whether the wiimote is rotating fast (0) or slow (1). Speed for slow
- * roation is 440 deg/s and for fast rotation 2000 deg/s. To get a
- * linear scale we multiply by 2000/440 = ~4.5454 which is 18 for fast
- * and 9 for slow.
- * If the wiimote is not rotating the sensor reports 2^13 = 8192.
- * Ext specifies whether an extension is connected to the motionp.
- */
-
- x = payload[0];
- y = payload[1];
- z = payload[2];
-
- x |= (((__u16)payload[3]) << 6) & 0xff00;
- y |= (((__u16)payload[4]) << 6) & 0xff00;
- z |= (((__u16)payload[5]) << 6) & 0xff00;
-
- x -= 8192;
- y -= 8192;
- z -= 8192;
-
- if (!(payload[3] & 0x02))
- x *= 18;
- else
- x *= 9;
- if (!(payload[4] & 0x02))
- y *= 18;
- else
- y *= 9;
- if (!(payload[3] & 0x01))
- z *= 18;
- else
- z *= 9;
-
- input_report_abs(ext->mp_input, ABS_RX, x);
- input_report_abs(ext->mp_input, ABS_RY, y);
- input_report_abs(ext->mp_input, ABS_RZ, z);
- input_sync(ext->mp_input);
-
- plugged = payload[5] & 0x01;
- if (plugged != ext->mp_plugged)
- ext->mp_plugged = plugged;
-}
-
-static void handler_nunchuck(struct wiimote_ext *ext, const __u8 *payload)
-{
- __s16 x, y, z, bx, by;
-
- /* Byte | 8 7 | 6 5 | 4 3 | 2 | 1 |
- * -----+----------+---------+---------+----+-----+
- * 1 | Button X <7:0> |
- * 2 | Button Y <7:0> |
- * -----+----------+---------+---------+----+-----+
- * 3 | Speed X <9:2> |
- * 4 | Speed Y <9:2> |
- * 5 | Speed Z <9:2> |
- * -----+----------+---------+---------+----+-----+
- * 6 | Z <1:0> | Y <1:0> | X <1:0> | BC | BZ |
- * -----+----------+---------+---------+----+-----+
- * Button X/Y is the analog stick. Speed X, Y and Z are the
- * accelerometer data in the same format as the wiimote's accelerometer.
- * The 6th byte contains the LSBs of the accelerometer data.
- * BC and BZ are the C and Z buttons: 0 means pressed
- *
- * If reported interleaved with motionp, then the layout changes. The
- * 5th and 6th byte changes to:
- * -----+-----------------------------------+-----+
- * 5 | Speed Z <9:3> | EXT |
- * -----+--------+-----+-----+----+----+----+-----+
- * 6 |Z <2:1> |Y <1>|X <1>| BC | BZ | 0 | 0 |
- * -----+--------+-----+-----+----+----+----+-----+
- * All three accelerometer values lose their LSB. The other data is
- * still available but slightly moved.
- *
- * Center data for button values is 128. Center value for accelerometer
- * values it 512 / 0x200
- */
-
- bx = payload[0];
- by = payload[1];
- bx -= 128;
- by -= 128;
-
- x = payload[2] << 2;
- y = payload[3] << 2;
- z = payload[4] << 2;
-
- if (ext->motionp) {
- x |= (payload[5] >> 3) & 0x02;
- y |= (payload[5] >> 4) & 0x02;
- z &= ~0x4;
- z |= (payload[5] >> 5) & 0x06;
- } else {
- x |= (payload[5] >> 2) & 0x03;
- y |= (payload[5] >> 4) & 0x03;
- z |= (payload[5] >> 6) & 0x03;
- }
-
- x -= 0x200;
- y -= 0x200;
- z -= 0x200;
-
- input_report_abs(ext->input, ABS_HAT0X, bx);
- input_report_abs(ext->input, ABS_HAT0Y, by);
-
- input_report_abs(ext->input, ABS_RX, x);
- input_report_abs(ext->input, ABS_RY, y);
- input_report_abs(ext->input, ABS_RZ, z);
-
- if (ext->motionp) {
- input_report_key(ext->input,
- wiiext_keymap[WIIEXT_KEY_Z], !(payload[5] & 0x04));
- input_report_key(ext->input,
- wiiext_keymap[WIIEXT_KEY_C], !(payload[5] & 0x08));
- } else {
- input_report_key(ext->input,
- wiiext_keymap[WIIEXT_KEY_Z], !(payload[5] & 0x01));
- input_report_key(ext->input,
- wiiext_keymap[WIIEXT_KEY_C], !(payload[5] & 0x02));
- }
-
- input_sync(ext->input);
-}
-
-static void handler_classic(struct wiimote_ext *ext, const __u8 *payload)
-{
- __s8 rx, ry, lx, ly, lt, rt;
-
- /* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
- * -----+-----+-----+-----+-----+-----+-----+-----+-----+
- * 1 | RX <5:4> | LX <5:0> |
- * 2 | RX <3:2> | LY <5:0> |
- * -----+-----+-----+-----+-----------------------------+
- * 3 |RX<1>| LT <5:4> | RY <5:1> |
- * -----+-----+-----------+-----------------------------+
- * 4 | LT <3:1> | RT <5:1> |
- * -----+-----+-----+-----+-----+-----+-----+-----+-----+
- * 5 | BDR | BDD | BLT | B- | BH | B+ | BRT | 1 |
- * -----+-----+-----+-----+-----+-----+-----+-----+-----+
- * 6 | BZL | BB | BY | BA | BX | BZR | BDL | BDU |
- * -----+-----+-----+-----+-----+-----+-----+-----+-----+
- * All buttons are 0 if pressed
- * RX and RY are right analog stick
- * LX and LY are left analog stick
- * LT is left trigger, RT is right trigger
- * BLT is 0 if left trigger is fully pressed
- * BRT is 0 if right trigger is fully pressed
- * BDR, BDD, BDL, BDU form the D-Pad with right, down, left, up buttons
- * BZL is left Z button and BZR is right Z button
- * B-, BH, B+ are +, HOME and - buttons
- * BB, BY, BA, BX are A, B, X, Y buttons
- * LSB of RX, RY, LT, and RT are not transmitted and always 0.
- *
- * With motionp enabled it changes slightly to this:
- * Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
- * -----+-----+-----+-----+-----+-----+-----+-----+-----+
- * 1 | RX <4:3> | LX <5:1> | BDU |
- * 2 | RX <2:1> | LY <5:1> | BDL |
- * -----+-----+-----+-----+-----------------------+-----+
- * 3 |RX<0>| LT <4:3> | RY <4:0> |
- * -----+-----+-----------+-----------------------------+
- * 4 | LT <2:0> | RT <4:0> |
- * -----+-----+-----+-----+-----+-----+-----+-----+-----+
- * 5 | BDR | BDD | BLT | B- | BH | B+ | BRT | EXT |
- * -----+-----+-----+-----+-----+-----+-----+-----+-----+
- * 6 | BZL | BB | BY | BA | BX | BZR | 0 | 0 |
- * -----+-----+-----+-----+-----+-----+-----+-----+-----+
- * Only the LSBs of LX and LY are lost. BDU and BDL are moved, the rest
- * is the same as before.
- */
-
- if (ext->motionp) {
- lx = payload[0] & 0x3e;
- ly = payload[0] & 0x3e;
- } else {
- lx = payload[0] & 0x3f;
- ly = payload[0] & 0x3f;
- }
-
- rx = (payload[0] >> 3) & 0x14;
- rx |= (payload[1] >> 5) & 0x06;
- rx |= (payload[2] >> 7) & 0x01;
- ry = payload[2] & 0x1f;
-
- rt = payload[3] & 0x1f;
- lt = (payload[2] >> 2) & 0x18;
- lt |= (payload[3] >> 5) & 0x07;
-
- rx <<= 1;
- ry <<= 1;
- rt <<= 1;
- lt <<= 1;
-
- input_report_abs(ext->input, ABS_HAT1X, lx - 0x20);
- input_report_abs(ext->input, ABS_HAT1Y, ly - 0x20);
- input_report_abs(ext->input, ABS_HAT2X, rx - 0x20);
- input_report_abs(ext->input, ABS_HAT2Y, ry - 0x20);
- input_report_abs(ext->input, ABS_HAT3X, rt - 0x20);
- input_report_abs(ext->input, ABS_HAT3Y, lt - 0x20);
-
- input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_RIGHT],
- !!(payload[4] & 0x80));
- input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_DOWN],
- !!(payload[4] & 0x40));
- input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_LT],
- !!(payload[4] & 0x20));
- input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_MINUS],
- !!(payload[4] & 0x10));
- input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_HOME],
- !!(payload[4] & 0x08));
- input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_PLUS],
- !!(payload[4] & 0x04));
- input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_RT],
- !!(payload[4] & 0x02));
- input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_ZL],
- !!(payload[5] & 0x80));
- input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_B],
- !!(payload[5] & 0x40));
- input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_Y],
- !!(payload[5] & 0x20));
- input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_A],
- !!(payload[5] & 0x10));
- input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_X],
- !!(payload[5] & 0x08));
- input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_ZR],
- !!(payload[5] & 0x04));
-
- if (ext->motionp) {
- input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_UP],
- !!(payload[0] & 0x01));
- input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_LEFT],
- !!(payload[1] & 0x01));
- } else {
- input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_UP],
- !!(payload[5] & 0x01));
- input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_LEFT],
- !!(payload[5] & 0x02));
- }
-
- input_sync(ext->input);
-}
-
-static void handler_balance_board(struct wiimote_ext *ext, const __u8 *payload)
-{
- __s32 val[4], tmp;
- unsigned int i;
-
- /* Byte | 8 7 6 5 4 3 2 1 |
- * -----+--------------------------+
- * 1 | Top Right <15:8> |
- * 2 | Top Right <7:0> |
- * -----+--------------------------+
- * 3 | Bottom Right <15:8> |
- * 4 | Bottom Right <7:0> |
- * -----+--------------------------+
- * 5 | Top Left <15:8> |
- * 6 | Top Left <7:0> |
- * -----+--------------------------+
- * 7 | Bottom Left <15:8> |
- * 8 | Bottom Left <7:0> |
- * -----+--------------------------+
- *
- * These values represent the weight-measurements of the Wii-balance
- * board with 16bit precision.
- *
- * The balance-board is never reported interleaved with motionp.
- */
-
- val[0] = payload[0];
- val[0] <<= 8;
- val[0] |= payload[1];
-
- val[1] = payload[2];
- val[1] <<= 8;
- val[1] |= payload[3];
-
- val[2] = payload[4];
- val[2] <<= 8;
- val[2] |= payload[5];
-
- val[3] = payload[6];
- val[3] <<= 8;
- val[3] |= payload[7];
-
- /* apply calibration data */
- for (i = 0; i < 4; i++) {
- if (val[i] < ext->calib[i][1]) {
- tmp = val[i] - ext->calib[i][0];
- tmp *= 1700;
- tmp /= ext->calib[i][1] - ext->calib[i][0];
- } else {
- tmp = val[i] - ext->calib[i][1];
- tmp *= 1700;
- tmp /= ext->calib[i][2] - ext->calib[i][1];
- tmp += 1700;
- }
- val[i] = tmp;
- }
-
- input_report_abs(ext->input, ABS_HAT0X, val[0]);
- input_report_abs(ext->input, ABS_HAT0Y, val[1]);
- input_report_abs(ext->input, ABS_HAT1X, val[2]);
- input_report_abs(ext->input, ABS_HAT1Y, val[3]);
-
- input_sync(ext->input);
-}
-
-/* call this with state.lock spinlock held */
-void wiiext_handle(struct wiimote_data *wdata, const __u8 *payload)
-{
- struct wiimote_ext *ext = wdata->ext;
-
- if (!ext)
- return;
-
- if (ext->motionp && (payload[5] & 0x02)) {
- handler_motionp(ext, payload);
- } else if (ext->ext_type == WIIEXT_NUNCHUCK) {
- handler_nunchuck(ext, payload);
- } else if (ext->ext_type == WIIEXT_CLASSIC) {
- handler_classic(ext, payload);
- } else if (ext->ext_type == WIIEXT_BALANCE_BOARD) {
- handler_balance_board(ext, payload);
- }
-}
-
-static ssize_t wiiext_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct wiimote_data *wdata = dev_to_wii(dev);
- __u8 type = WIIEXT_NONE;
- bool motionp = false;
- unsigned long flags;
-
- spin_lock_irqsave(&wdata->state.lock, flags);
- if (wdata->ext) {
- motionp = wdata->ext->motionp;
- type = wdata->ext->ext_type;
- }
- spin_unlock_irqrestore(&wdata->state.lock, flags);
-
- if (type == WIIEXT_NUNCHUCK) {
- if (motionp)
- return sprintf(buf, "motionp+nunchuck\n");
- else
- return sprintf(buf, "nunchuck\n");
- } else if (type == WIIEXT_CLASSIC) {
- if (motionp)
- return sprintf(buf, "motionp+classic\n");
- else
- return sprintf(buf, "classic\n");
- } else if (type == WIIEXT_BALANCE_BOARD) {
- if (motionp)
- return sprintf(buf, "motionp+balanceboard\n");
- else
- return sprintf(buf, "balanceboard\n");
- } else {
- if (motionp)
- return sprintf(buf, "motionp\n");
- else
- return sprintf(buf, "none\n");
- }
-}
-
-static DEVICE_ATTR(extension, S_IRUGO, wiiext_show, NULL);
-
-static int wiiext_input_open(struct input_dev *dev)
-{
- struct wiimote_ext *ext = input_get_drvdata(dev);
- int ret;
-
- ret = hid_hw_open(ext->wdata->hdev);
- if (ret)
- return ret;
-
- atomic_inc(&ext->opened);
- wiiext_schedule(ext);
-
- return 0;
-}
-
-static void wiiext_input_close(struct input_dev *dev)
-{
- struct wiimote_ext *ext = input_get_drvdata(dev);
-
- atomic_dec(&ext->opened);
- wiiext_schedule(ext);
- hid_hw_close(ext->wdata->hdev);
-}
-
-static int wiiext_mp_open(struct input_dev *dev)
-{
- struct wiimote_ext *ext = input_get_drvdata(dev);
- int ret;
-
- ret = hid_hw_open(ext->wdata->hdev);
- if (ret)
- return ret;
-
- atomic_inc(&ext->mp_opened);
- wiiext_schedule(ext);
-
- return 0;
-}
-
-static void wiiext_mp_close(struct input_dev *dev)
-{
- struct wiimote_ext *ext = input_get_drvdata(dev);
-
- atomic_dec(&ext->mp_opened);
- wiiext_schedule(ext);
- hid_hw_close(ext->wdata->hdev);
-}
-
-/* Initializes the extension driver of a wiimote */
-int wiiext_init(struct wiimote_data *wdata)
-{
- struct wiimote_ext *ext;
- unsigned long flags;
- int ret, i;
-
- ext = kzalloc(sizeof(*ext), GFP_KERNEL);
- if (!ext)
- return -ENOMEM;
-
- ext->wdata = wdata;
- INIT_WORK(&ext->worker, wiiext_worker);
-
- ext->input = input_allocate_device();
- if (!ext->input) {
- ret = -ENOMEM;
- goto err_input;
- }
-
- input_set_drvdata(ext->input, ext);
- ext->input->open = wiiext_input_open;
- ext->input->close = wiiext_input_close;
- ext->input->dev.parent = &wdata->hdev->dev;
- ext->input->id.bustype = wdata->hdev->bus;
- ext->input->id.vendor = wdata->hdev->vendor;
- ext->input->id.product = wdata->hdev->product;
- ext->input->id.version = wdata->hdev->version;
- ext->input->name = WIIMOTE_NAME " Extension";
-
- set_bit(EV_KEY, ext->input->evbit);
- for (i = 0; i < WIIEXT_KEY_COUNT; ++i)
- set_bit(wiiext_keymap[i], ext->input->keybit);
-
- set_bit(EV_ABS, ext->input->evbit);
- set_bit(ABS_HAT0X, ext->input->absbit);
- set_bit(ABS_HAT0Y, ext->input->absbit);
- set_bit(ABS_HAT1X, ext->input->absbit);
- set_bit(ABS_HAT1Y, ext->input->absbit);
- set_bit(ABS_HAT2X, ext->input->absbit);
- set_bit(ABS_HAT2Y, ext->input->absbit);
- set_bit(ABS_HAT3X, ext->input->absbit);
- set_bit(ABS_HAT3Y, ext->input->absbit);
- input_set_abs_params(ext->input, ABS_HAT0X, -120, 120, 2, 4);
- input_set_abs_params(ext->input, ABS_HAT0Y, -120, 120, 2, 4);
- input_set_abs_params(ext->input, ABS_HAT1X, -30, 30, 1, 1);
- input_set_abs_params(ext->input, ABS_HAT1Y, -30, 30, 1, 1);
- input_set_abs_params(ext->input, ABS_HAT2X, -30, 30, 1, 1);
- input_set_abs_params(ext->input, ABS_HAT2Y, -30, 30, 1, 1);
- input_set_abs_params(ext->input, ABS_HAT3X, -30, 30, 1, 1);
- input_set_abs_params(ext->input, ABS_HAT3Y, -30, 30, 1, 1);
- set_bit(ABS_RX, ext->input->absbit);
- set_bit(ABS_RY, ext->input->absbit);
- set_bit(ABS_RZ, ext->input->absbit);
- input_set_abs_params(ext->input, ABS_RX, -500, 500, 2, 4);
- input_set_abs_params(ext->input, ABS_RY, -500, 500, 2, 4);
- input_set_abs_params(ext->input, ABS_RZ, -500, 500, 2, 4);
-
- ret = input_register_device(ext->input);
- if (ret) {
- input_free_device(ext->input);
- goto err_input;
- }
-
- ext->mp_input = input_allocate_device();
- if (!ext->mp_input) {
- ret = -ENOMEM;
- goto err_mp;
- }
-
- input_set_drvdata(ext->mp_input, ext);
- ext->mp_input->open = wiiext_mp_open;
- ext->mp_input->close = wiiext_mp_close;
- ext->mp_input->dev.parent = &wdata->hdev->dev;
- ext->mp_input->id.bustype = wdata->hdev->bus;
- ext->mp_input->id.vendor = wdata->hdev->vendor;
- ext->mp_input->id.product = wdata->hdev->product;
- ext->mp_input->id.version = wdata->hdev->version;
- ext->mp_input->name = WIIMOTE_NAME " Motion+";
-
- set_bit(EV_ABS, ext->mp_input->evbit);
- set_bit(ABS_RX, ext->mp_input->absbit);
- set_bit(ABS_RY, ext->mp_input->absbit);
- set_bit(ABS_RZ, ext->mp_input->absbit);
- input_set_abs_params(ext->mp_input, ABS_RX, -160000, 160000, 4, 8);
- input_set_abs_params(ext->mp_input, ABS_RY, -160000, 160000, 4, 8);
- input_set_abs_params(ext->mp_input, ABS_RZ, -160000, 160000, 4, 8);
-
- ret = input_register_device(ext->mp_input);
- if (ret) {
- input_free_device(ext->mp_input);
- goto err_mp;
- }
-
- ret = device_create_file(&wdata->hdev->dev, &dev_attr_extension);
- if (ret)
- goto err_dev;
-
- spin_lock_irqsave(&wdata->state.lock, flags);
- wdata->ext = ext;
- spin_unlock_irqrestore(&wdata->state.lock, flags);
-
- return 0;
-
-err_dev:
- input_unregister_device(ext->mp_input);
-err_mp:
- input_unregister_device(ext->input);
-err_input:
- kfree(ext);
- return ret;
-}
-
-/* Deinitializes the extension driver of a wiimote */
-void wiiext_deinit(struct wiimote_data *wdata)
-{
- struct wiimote_ext *ext = wdata->ext;
- unsigned long flags;
-
- if (!ext)
- return;
-
- /*
- * We first unset wdata->ext to avoid further input from the wiimote
- * core. The worker thread does not access this pointer so it is not
- * affected by this.
- * We kill the worker after this so it does not get respawned during
- * deinitialization.
- */
-
- spin_lock_irqsave(&wdata->state.lock, flags);
- wdata->ext = NULL;
- spin_unlock_irqrestore(&wdata->state.lock, flags);
-
- device_remove_file(&wdata->hdev->dev, &dev_attr_extension);
- input_unregister_device(ext->mp_input);
- input_unregister_device(ext->input);
-
- cancel_work_sync(&ext->worker);
- kfree(ext);
-}
--- /dev/null
+/*
+ * Device Modules for Nintendo Wii / Wii U HID Driver
+ * Copyright (c) 2011-2013 David Herrmann <dh.herrmann@gmail.com>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+/*
+ * Wiimote Modules
+ * Nintendo devices provide different peripherals and many new devices lack
+ * initial features like the IR camera. Therefore, each peripheral device is
+ * implemented as an independent module and we probe on each device only the
+ * modules for the hardware that really is available.
+ *
+ * Module registration is sequential. Unregistration is done in reverse order.
+ * After device detection, the needed modules are loaded. Users can trigger
+ * re-detection which causes all modules to be unloaded and then reload the
+ * modules for the new detected device.
+ *
+ * wdata->input is a shared input device. It is always initialized prior to
+ * module registration. If at least one registered module is marked as
+ * WIIMOD_FLAG_INPUT, then the input device will get registered after all
+ * modules were registered.
+ * Please note that it is unregistered _before_ the "remove" callbacks are
+ * called. This guarantees that no input interaction is done, anymore. However,
+ * the wiimote core keeps a reference to the input device so it is freed only
+ * after all modules were removed. It is safe to send events to unregistered
+ * input devices.
+ */
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/input.h>
+#include <linux/spinlock.h>
+#include "hid-wiimote.h"
+
+/*
+ * Keys
+ * The initial Wii Remote provided a bunch of buttons that are reported as
+ * part of the core protocol. Many later devices dropped these and report
+ * invalid data in the core button reports. Load this only on devices which
+ * correctly send button reports.
+ * It uses the shared input device.
+ */
+
+static const __u16 wiimod_keys_map[] = {
+ KEY_LEFT, /* WIIPROTO_KEY_LEFT */
+ KEY_RIGHT, /* WIIPROTO_KEY_RIGHT */
+ KEY_UP, /* WIIPROTO_KEY_UP */
+ KEY_DOWN, /* WIIPROTO_KEY_DOWN */
+ KEY_NEXT, /* WIIPROTO_KEY_PLUS */
+ KEY_PREVIOUS, /* WIIPROTO_KEY_MINUS */
+ BTN_1, /* WIIPROTO_KEY_ONE */
+ BTN_2, /* WIIPROTO_KEY_TWO */
+ BTN_A, /* WIIPROTO_KEY_A */
+ BTN_B, /* WIIPROTO_KEY_B */
+ BTN_MODE, /* WIIPROTO_KEY_HOME */
+};
+
+static void wiimod_keys_in_keys(struct wiimote_data *wdata, const __u8 *keys)
+{
+ input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_LEFT],
+ !!(keys[0] & 0x01));
+ input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_RIGHT],
+ !!(keys[0] & 0x02));
+ input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_DOWN],
+ !!(keys[0] & 0x04));
+ input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_UP],
+ !!(keys[0] & 0x08));
+ input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_PLUS],
+ !!(keys[0] & 0x10));
+ input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_TWO],
+ !!(keys[1] & 0x01));
+ input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_ONE],
+ !!(keys[1] & 0x02));
+ input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_B],
+ !!(keys[1] & 0x04));
+ input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_A],
+ !!(keys[1] & 0x08));
+ input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_MINUS],
+ !!(keys[1] & 0x10));
+ input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_HOME],
+ !!(keys[1] & 0x80));
+ input_sync(wdata->input);
+}
+
+static int wiimod_keys_probe(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ unsigned int i;
+
+ set_bit(EV_KEY, wdata->input->evbit);
+ for (i = 0; i < WIIPROTO_KEY_COUNT; ++i)
+ set_bit(wiimod_keys_map[i], wdata->input->keybit);
+
+ return 0;
+}
+
+static const struct wiimod_ops wiimod_keys = {
+ .flags = WIIMOD_FLAG_INPUT,
+ .arg = 0,
+ .probe = wiimod_keys_probe,
+ .remove = NULL,
+ .in_keys = wiimod_keys_in_keys,
+};
+
+/*
+ * Rumble
+ * Nearly all devices provide a rumble feature. A small motor for
+ * force-feedback effects. We provide an FF_RUMBLE memless ff device on the
+ * shared input device if this module is loaded.
+ * The rumble motor is controlled via a flag on almost every output report so
+ * the wiimote core handles the rumble flag. But if a device doesn't provide
+ * the rumble motor, this flag shouldn't be set.
+ */
+
+static int wiimod_rumble_play(struct input_dev *dev, void *data,
+ struct ff_effect *eff)
+{
+ struct wiimote_data *wdata = input_get_drvdata(dev);
+ __u8 value;
+ unsigned long flags;
+
+ /*
+ * The wiimote supports only a single rumble motor so if any magnitude
+ * is set to non-zero then we start the rumble motor. If both are set to
+ * zero, we stop the rumble motor.
+ */
+
+ if (eff->u.rumble.strong_magnitude || eff->u.rumble.weak_magnitude)
+ value = 1;
+ else
+ value = 0;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wiiproto_req_rumble(wdata, value);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+ return 0;
+}
+
+static int wiimod_rumble_probe(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ set_bit(FF_RUMBLE, wdata->input->ffbit);
+ if (input_ff_create_memless(wdata->input, NULL, wiimod_rumble_play))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static void wiimod_rumble_remove(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wiiproto_req_rumble(wdata, 0);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+}
+
+static const struct wiimod_ops wiimod_rumble = {
+ .flags = WIIMOD_FLAG_INPUT,
+ .arg = 0,
+ .probe = wiimod_rumble_probe,
+ .remove = wiimod_rumble_remove,
+};
+
+/*
+ * Battery
+ * 1 byte of battery capacity information is sent along every protocol status
+ * report. The wiimote core caches it but we try to update it on every
+ * user-space request.
+ * This is supported by nearly every device so it's almost always enabled.
+ */
+
+static enum power_supply_property wiimod_battery_props[] = {
+ POWER_SUPPLY_PROP_CAPACITY,
+ POWER_SUPPLY_PROP_SCOPE,
+};
+
+static int wiimod_battery_get_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct wiimote_data *wdata = container_of(psy, struct wiimote_data,
+ battery);
+ int ret = 0, state;
+ unsigned long flags;
+
+ if (psp == POWER_SUPPLY_PROP_SCOPE) {
+ val->intval = POWER_SUPPLY_SCOPE_DEVICE;
+ return 0;
+ } else if (psp != POWER_SUPPLY_PROP_CAPACITY) {
+ return -EINVAL;
+ }
+
+ ret = wiimote_cmd_acquire(wdata);
+ if (ret)
+ return ret;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wiimote_cmd_set(wdata, WIIPROTO_REQ_SREQ, 0);
+ wiiproto_req_status(wdata);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+ wiimote_cmd_wait(wdata);
+ wiimote_cmd_release(wdata);
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ state = wdata->state.cmd_battery;
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+ val->intval = state * 100 / 255;
+ return ret;
+}
+
+static int wiimod_battery_probe(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ int ret;
+
+ wdata->battery.properties = wiimod_battery_props;
+ wdata->battery.num_properties = ARRAY_SIZE(wiimod_battery_props);
+ wdata->battery.get_property = wiimod_battery_get_property;
+ wdata->battery.type = POWER_SUPPLY_TYPE_BATTERY;
+ wdata->battery.use_for_apm = 0;
+ wdata->battery.name = kasprintf(GFP_KERNEL, "wiimote_battery_%s",
+ wdata->hdev->uniq);
+ if (!wdata->battery.name)
+ return -ENOMEM;
+
+ ret = power_supply_register(&wdata->hdev->dev, &wdata->battery);
+ if (ret) {
+ hid_err(wdata->hdev, "cannot register battery device\n");
+ goto err_free;
+ }
+
+ power_supply_powers(&wdata->battery, &wdata->hdev->dev);
+ return 0;
+
+err_free:
+ kfree(wdata->battery.name);
+ wdata->battery.name = NULL;
+ return ret;
+}
+
+static void wiimod_battery_remove(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ if (!wdata->battery.name)
+ return;
+
+ power_supply_unregister(&wdata->battery);
+ kfree(wdata->battery.name);
+ wdata->battery.name = NULL;
+}
+
+static const struct wiimod_ops wiimod_battery = {
+ .flags = 0,
+ .arg = 0,
+ .probe = wiimod_battery_probe,
+ .remove = wiimod_battery_remove,
+};
+
+/*
+ * LED
+ * 0 to 4 player LEDs are supported by devices. The "arg" field of the
+ * wiimod_ops structure specifies which LED this module controls. This allows
+ * to register a limited number of LEDs.
+ * State is managed by wiimote core.
+ */
+
+static enum led_brightness wiimod_led_get(struct led_classdev *led_dev)
+{
+ struct wiimote_data *wdata;
+ struct device *dev = led_dev->dev->parent;
+ int i;
+ unsigned long flags;
+ bool value = false;
+
+ wdata = hid_get_drvdata(container_of(dev, struct hid_device, dev));
+
+ for (i = 0; i < 4; ++i) {
+ if (wdata->leds[i] == led_dev) {
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ value = wdata->state.flags & WIIPROTO_FLAG_LED(i + 1);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+ break;
+ }
+ }
+
+ return value ? LED_FULL : LED_OFF;
+}
+
+static void wiimod_led_set(struct led_classdev *led_dev,
+ enum led_brightness value)
+{
+ struct wiimote_data *wdata;
+ struct device *dev = led_dev->dev->parent;
+ int i;
+ unsigned long flags;
+ __u8 state, flag;
+
+ wdata = hid_get_drvdata(container_of(dev, struct hid_device, dev));
+
+ for (i = 0; i < 4; ++i) {
+ if (wdata->leds[i] == led_dev) {
+ flag = WIIPROTO_FLAG_LED(i + 1);
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ state = wdata->state.flags;
+ if (value == LED_OFF)
+ wiiproto_req_leds(wdata, state & ~flag);
+ else
+ wiiproto_req_leds(wdata, state | flag);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+ break;
+ }
+ }
+}
+
+static int wiimod_led_probe(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ struct device *dev = &wdata->hdev->dev;
+ size_t namesz = strlen(dev_name(dev)) + 9;
+ struct led_classdev *led;
+ unsigned long flags;
+ char *name;
+ int ret;
+
+ led = kzalloc(sizeof(struct led_classdev) + namesz, GFP_KERNEL);
+ if (!led)
+ return -ENOMEM;
+
+ name = (void*)&led[1];
+ snprintf(name, namesz, "%s:blue:p%lu", dev_name(dev), ops->arg);
+ led->name = name;
+ led->brightness = 0;
+ led->max_brightness = 1;
+ led->brightness_get = wiimod_led_get;
+ led->brightness_set = wiimod_led_set;
+
+ wdata->leds[ops->arg] = led;
+ ret = led_classdev_register(dev, led);
+ if (ret)
+ goto err_free;
+
+ /* enable LED1 to stop initial LED-blinking */
+ if (ops->arg == 0) {
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wiiproto_req_leds(wdata, WIIPROTO_FLAG_LED1);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+ }
+
+ return 0;
+
+err_free:
+ wdata->leds[ops->arg] = NULL;
+ kfree(led);
+ return ret;
+}
+
+static void wiimod_led_remove(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ if (!wdata->leds[ops->arg])
+ return;
+
+ led_classdev_unregister(wdata->leds[ops->arg]);
+ kfree(wdata->leds[ops->arg]);
+ wdata->leds[ops->arg] = NULL;
+}
+
+static const struct wiimod_ops wiimod_leds[4] = {
+ {
+ .flags = 0,
+ .arg = 0,
+ .probe = wiimod_led_probe,
+ .remove = wiimod_led_remove,
+ },
+ {
+ .flags = 0,
+ .arg = 1,
+ .probe = wiimod_led_probe,
+ .remove = wiimod_led_remove,
+ },
+ {
+ .flags = 0,
+ .arg = 2,
+ .probe = wiimod_led_probe,
+ .remove = wiimod_led_remove,
+ },
+ {
+ .flags = 0,
+ .arg = 3,
+ .probe = wiimod_led_probe,
+ .remove = wiimod_led_remove,
+ },
+};
+
+/*
+ * Accelerometer
+ * 3 axis accelerometer data is part of nearly all DRMs. If not supported by a
+ * device, it's mostly cleared to 0. This module parses this data and provides
+ * it via a separate input device.
+ */
+
+static void wiimod_accel_in_accel(struct wiimote_data *wdata,
+ const __u8 *accel)
+{
+ __u16 x, y, z;
+
+ if (!(wdata->state.flags & WIIPROTO_FLAG_ACCEL))
+ return;
+
+ /*
+ * payload is: BB BB XX YY ZZ
+ * Accelerometer data is encoded into 3 10bit values. XX, YY and ZZ
+ * contain the upper 8 bits of each value. The lower 2 bits are
+ * contained in the buttons data BB BB.
+ * Bits 6 and 7 of the first buttons byte BB is the lower 2 bits of the
+ * X accel value. Bit 5 of the second buttons byte is the 2nd bit of Y
+ * accel value and bit 6 is the second bit of the Z value.
+ * The first bit of Y and Z values is not available and always set to 0.
+ * 0x200 is returned on no movement.
+ */
+
+ x = accel[2] << 2;
+ y = accel[3] << 2;
+ z = accel[4] << 2;
+
+ x |= (accel[0] >> 5) & 0x3;
+ y |= (accel[1] >> 4) & 0x2;
+ z |= (accel[1] >> 5) & 0x2;
+
+ input_report_abs(wdata->accel, ABS_RX, x - 0x200);
+ input_report_abs(wdata->accel, ABS_RY, y - 0x200);
+ input_report_abs(wdata->accel, ABS_RZ, z - 0x200);
+ input_sync(wdata->accel);
+}
+
+static int wiimod_accel_open(struct input_dev *dev)
+{
+ struct wiimote_data *wdata = input_get_drvdata(dev);
+ unsigned long flags;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wiiproto_req_accel(wdata, true);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+ return 0;
+}
+
+static void wiimod_accel_close(struct input_dev *dev)
+{
+ struct wiimote_data *wdata = input_get_drvdata(dev);
+ unsigned long flags;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wiiproto_req_accel(wdata, false);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+}
+
+static int wiimod_accel_probe(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ int ret;
+
+ wdata->accel = input_allocate_device();
+ if (!wdata->accel)
+ return -ENOMEM;
+
+ input_set_drvdata(wdata->accel, wdata);
+ wdata->accel->open = wiimod_accel_open;
+ wdata->accel->close = wiimod_accel_close;
+ wdata->accel->dev.parent = &wdata->hdev->dev;
+ wdata->accel->id.bustype = wdata->hdev->bus;
+ wdata->accel->id.vendor = wdata->hdev->vendor;
+ wdata->accel->id.product = wdata->hdev->product;
+ wdata->accel->id.version = wdata->hdev->version;
+ wdata->accel->name = WIIMOTE_NAME " Accelerometer";
+
+ set_bit(EV_ABS, wdata->accel->evbit);
+ set_bit(ABS_RX, wdata->accel->absbit);
+ set_bit(ABS_RY, wdata->accel->absbit);
+ set_bit(ABS_RZ, wdata->accel->absbit);
+ input_set_abs_params(wdata->accel, ABS_RX, -500, 500, 2, 4);
+ input_set_abs_params(wdata->accel, ABS_RY, -500, 500, 2, 4);
+ input_set_abs_params(wdata->accel, ABS_RZ, -500, 500, 2, 4);
+
+ ret = input_register_device(wdata->accel);
+ if (ret) {
+ hid_err(wdata->hdev, "cannot register input device\n");
+ goto err_free;
+ }
+
+ return 0;
+
+err_free:
+ input_free_device(wdata->accel);
+ wdata->accel = NULL;
+ return ret;
+}
+
+static void wiimod_accel_remove(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ if (!wdata->accel)
+ return;
+
+ input_unregister_device(wdata->accel);
+ wdata->accel = NULL;
+}
+
+static const struct wiimod_ops wiimod_accel = {
+ .flags = 0,
+ .arg = 0,
+ .probe = wiimod_accel_probe,
+ .remove = wiimod_accel_remove,
+ .in_accel = wiimod_accel_in_accel,
+};
+
+/*
+ * IR Cam
+ * Up to 4 IR sources can be tracked by a normal Wii Remote. The IR cam needs
+ * to be initialized with a fairly complex procedure and consumes a lot of
+ * power. Therefore, as long as no application uses the IR input device, it is
+ * kept offline.
+ * Nearly no other device than the normal Wii Remotes supports the IR cam so
+ * you can disable this module for these devices.
+ */
+
+static void wiimod_ir_in_ir(struct wiimote_data *wdata, const __u8 *ir,
+ bool packed, unsigned int id)
+{
+ __u16 x, y;
+ __u8 xid, yid;
+ bool sync = false;
+
+ if (!(wdata->state.flags & WIIPROTO_FLAGS_IR))
+ return;
+
+ switch (id) {
+ case 0:
+ xid = ABS_HAT0X;
+ yid = ABS_HAT0Y;
+ break;
+ case 1:
+ xid = ABS_HAT1X;
+ yid = ABS_HAT1Y;
+ break;
+ case 2:
+ xid = ABS_HAT2X;
+ yid = ABS_HAT2Y;
+ break;
+ case 3:
+ xid = ABS_HAT3X;
+ yid = ABS_HAT3Y;
+ sync = true;
+ break;
+ default:
+ return;
+ }
+
+ /*
+ * Basic IR data is encoded into 3 bytes. The first two bytes are the
+ * lower 8 bit of the X/Y data, the 3rd byte contains the upper 2 bits
+ * of both.
+ * If data is packed, then the 3rd byte is put first and slightly
+ * reordered. This allows to interleave packed and non-packed data to
+ * have two IR sets in 5 bytes instead of 6.
+ * The resulting 10bit X/Y values are passed to the ABS_HAT? input dev.
+ */
+
+ if (packed) {
+ x = ir[1] | ((ir[0] & 0x03) << 8);
+ y = ir[2] | ((ir[0] & 0x0c) << 6);
+ } else {
+ x = ir[0] | ((ir[2] & 0x30) << 4);
+ y = ir[1] | ((ir[2] & 0xc0) << 2);
+ }
+
+ input_report_abs(wdata->ir, xid, x);
+ input_report_abs(wdata->ir, yid, y);
+
+ if (sync)
+ input_sync(wdata->ir);
+}
+
+static int wiimod_ir_change(struct wiimote_data *wdata, __u16 mode)
+{
+ int ret;
+ unsigned long flags;
+ __u8 format = 0;
+ static const __u8 data_enable[] = { 0x01 };
+ static const __u8 data_sens1[] = { 0x02, 0x00, 0x00, 0x71, 0x01,
+ 0x00, 0xaa, 0x00, 0x64 };
+ static const __u8 data_sens2[] = { 0x63, 0x03 };
+ static const __u8 data_fin[] = { 0x08 };
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+
+ if (mode == (wdata->state.flags & WIIPROTO_FLAGS_IR)) {
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+ return 0;
+ }
+
+ if (mode == 0) {
+ wdata->state.flags &= ~WIIPROTO_FLAGS_IR;
+ wiiproto_req_ir1(wdata, 0);
+ wiiproto_req_ir2(wdata, 0);
+ wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+ return 0;
+ }
+
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+ ret = wiimote_cmd_acquire(wdata);
+ if (ret)
+ return ret;
+
+ /* send PIXEL CLOCK ENABLE cmd first */
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wiimote_cmd_set(wdata, WIIPROTO_REQ_IR1, 0);
+ wiiproto_req_ir1(wdata, 0x06);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+ ret = wiimote_cmd_wait(wdata);
+ if (ret)
+ goto unlock;
+ if (wdata->state.cmd_err) {
+ ret = -EIO;
+ goto unlock;
+ }
+
+ /* enable IR LOGIC */
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wiimote_cmd_set(wdata, WIIPROTO_REQ_IR2, 0);
+ wiiproto_req_ir2(wdata, 0x06);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+ ret = wiimote_cmd_wait(wdata);
+ if (ret)
+ goto unlock;
+ if (wdata->state.cmd_err) {
+ ret = -EIO;
+ goto unlock;
+ }
+
+ /* enable IR cam but do not make it send data, yet */
+ ret = wiimote_cmd_write(wdata, 0xb00030, data_enable,
+ sizeof(data_enable));
+ if (ret)
+ goto unlock;
+
+ /* write first sensitivity block */
+ ret = wiimote_cmd_write(wdata, 0xb00000, data_sens1,
+ sizeof(data_sens1));
+ if (ret)
+ goto unlock;
+
+ /* write second sensitivity block */
+ ret = wiimote_cmd_write(wdata, 0xb0001a, data_sens2,
+ sizeof(data_sens2));
+ if (ret)
+ goto unlock;
+
+ /* put IR cam into desired state */
+ switch (mode) {
+ case WIIPROTO_FLAG_IR_FULL:
+ format = 5;
+ break;
+ case WIIPROTO_FLAG_IR_EXT:
+ format = 3;
+ break;
+ case WIIPROTO_FLAG_IR_BASIC:
+ format = 1;
+ break;
+ }
+ ret = wiimote_cmd_write(wdata, 0xb00033, &format, sizeof(format));
+ if (ret)
+ goto unlock;
+
+ /* make IR cam send data */
+ ret = wiimote_cmd_write(wdata, 0xb00030, data_fin, sizeof(data_fin));
+ if (ret)
+ goto unlock;
+
+ /* request new DRM mode compatible to IR mode */
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wdata->state.flags &= ~WIIPROTO_FLAGS_IR;
+ wdata->state.flags |= mode & WIIPROTO_FLAGS_IR;
+ wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+unlock:
+ wiimote_cmd_release(wdata);
+ return ret;
+}
+
+static int wiimod_ir_open(struct input_dev *dev)
+{
+ struct wiimote_data *wdata = input_get_drvdata(dev);
+
+ return wiimod_ir_change(wdata, WIIPROTO_FLAG_IR_BASIC);
+}
+
+static void wiimod_ir_close(struct input_dev *dev)
+{
+ struct wiimote_data *wdata = input_get_drvdata(dev);
+
+ wiimod_ir_change(wdata, 0);
+}
+
+static int wiimod_ir_probe(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ int ret;
+
+ wdata->ir = input_allocate_device();
+ if (!wdata->ir)
+ return -ENOMEM;
+
+ input_set_drvdata(wdata->ir, wdata);
+ wdata->ir->open = wiimod_ir_open;
+ wdata->ir->close = wiimod_ir_close;
+ wdata->ir->dev.parent = &wdata->hdev->dev;
+ wdata->ir->id.bustype = wdata->hdev->bus;
+ wdata->ir->id.vendor = wdata->hdev->vendor;
+ wdata->ir->id.product = wdata->hdev->product;
+ wdata->ir->id.version = wdata->hdev->version;
+ wdata->ir->name = WIIMOTE_NAME " IR";
+
+ set_bit(EV_ABS, wdata->ir->evbit);
+ set_bit(ABS_HAT0X, wdata->ir->absbit);
+ set_bit(ABS_HAT0Y, wdata->ir->absbit);
+ set_bit(ABS_HAT1X, wdata->ir->absbit);
+ set_bit(ABS_HAT1Y, wdata->ir->absbit);
+ set_bit(ABS_HAT2X, wdata->ir->absbit);
+ set_bit(ABS_HAT2Y, wdata->ir->absbit);
+ set_bit(ABS_HAT3X, wdata->ir->absbit);
+ set_bit(ABS_HAT3Y, wdata->ir->absbit);
+ input_set_abs_params(wdata->ir, ABS_HAT0X, 0, 1023, 2, 4);
+ input_set_abs_params(wdata->ir, ABS_HAT0Y, 0, 767, 2, 4);
+ input_set_abs_params(wdata->ir, ABS_HAT1X, 0, 1023, 2, 4);
+ input_set_abs_params(wdata->ir, ABS_HAT1Y, 0, 767, 2, 4);
+ input_set_abs_params(wdata->ir, ABS_HAT2X, 0, 1023, 2, 4);
+ input_set_abs_params(wdata->ir, ABS_HAT2Y, 0, 767, 2, 4);
+ input_set_abs_params(wdata->ir, ABS_HAT3X, 0, 1023, 2, 4);
+ input_set_abs_params(wdata->ir, ABS_HAT3Y, 0, 767, 2, 4);
+
+ ret = input_register_device(wdata->ir);
+ if (ret) {
+ hid_err(wdata->hdev, "cannot register input device\n");
+ goto err_free;
+ }
+
+ return 0;
+
+err_free:
+ input_free_device(wdata->ir);
+ wdata->ir = NULL;
+ return ret;
+}
+
+static void wiimod_ir_remove(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ if (!wdata->ir)
+ return;
+
+ input_unregister_device(wdata->ir);
+ wdata->ir = NULL;
+}
+
+static const struct wiimod_ops wiimod_ir = {
+ .flags = 0,
+ .arg = 0,
+ .probe = wiimod_ir_probe,
+ .remove = wiimod_ir_remove,
+ .in_ir = wiimod_ir_in_ir,
+};
+
+/*
+ * Nunchuk Extension
+ * The Nintendo Wii Nunchuk was the first official extension published by
+ * Nintendo. It provides two additional keys and a separate accelerometer. It
+ * can be hotplugged to standard Wii Remotes.
+ */
+
+enum wiimod_nunchuk_keys {
+ WIIMOD_NUNCHUK_KEY_C,
+ WIIMOD_NUNCHUK_KEY_Z,
+ WIIMOD_NUNCHUK_KEY_NUM,
+};
+
+static const __u16 wiimod_nunchuk_map[] = {
+ BTN_C, /* WIIMOD_NUNCHUK_KEY_C */
+ BTN_Z, /* WIIMOD_NUNCHUK_KEY_Z */
+};
+
+static void wiimod_nunchuk_in_ext(struct wiimote_data *wdata, const __u8 *ext)
+{
+ __s16 x, y, z, bx, by;
+
+ /* Byte | 8 7 | 6 5 | 4 3 | 2 | 1 |
+ * -----+----------+---------+---------+----+-----+
+ * 1 | Button X <7:0> |
+ * 2 | Button Y <7:0> |
+ * -----+----------+---------+---------+----+-----+
+ * 3 | Speed X <9:2> |
+ * 4 | Speed Y <9:2> |
+ * 5 | Speed Z <9:2> |
+ * -----+----------+---------+---------+----+-----+
+ * 6 | Z <1:0> | Y <1:0> | X <1:0> | BC | BZ |
+ * -----+----------+---------+---------+----+-----+
+ * Button X/Y is the analog stick. Speed X, Y and Z are the
+ * accelerometer data in the same format as the wiimote's accelerometer.
+ * The 6th byte contains the LSBs of the accelerometer data.
+ * BC and BZ are the C and Z buttons: 0 means pressed
+ *
+ * If reported interleaved with motionp, then the layout changes. The
+ * 5th and 6th byte changes to:
+ * -----+-----------------------------------+-----+
+ * 5 | Speed Z <9:3> | EXT |
+ * -----+--------+-----+-----+----+----+----+-----+
+ * 6 |Z <2:1> |Y <1>|X <1>| BC | BZ | 0 | 0 |
+ * -----+--------+-----+-----+----+----+----+-----+
+ * All three accelerometer values lose their LSB. The other data is
+ * still available but slightly moved.
+ *
+ * Center data for button values is 128. Center value for accelerometer
+ * values it 512 / 0x200
+ */
+
+ bx = ext[0];
+ by = ext[1];
+ bx -= 128;
+ by -= 128;
+
+ x = ext[2] << 2;
+ y = ext[3] << 2;
+ z = ext[4] << 2;
+
+ if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
+ x |= (ext[5] >> 3) & 0x02;
+ y |= (ext[5] >> 4) & 0x02;
+ z &= ~0x4;
+ z |= (ext[5] >> 5) & 0x06;
+ } else {
+ x |= (ext[5] >> 2) & 0x03;
+ y |= (ext[5] >> 4) & 0x03;
+ z |= (ext[5] >> 6) & 0x03;
+ }
+
+ x -= 0x200;
+ y -= 0x200;
+ z -= 0x200;
+
+ input_report_abs(wdata->extension.input, ABS_HAT0X, bx);
+ input_report_abs(wdata->extension.input, ABS_HAT0Y, by);
+
+ input_report_abs(wdata->extension.input, ABS_RX, x);
+ input_report_abs(wdata->extension.input, ABS_RY, y);
+ input_report_abs(wdata->extension.input, ABS_RZ, z);
+
+ if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
+ input_report_key(wdata->extension.input,
+ wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_Z],
+ !(ext[5] & 0x04));
+ input_report_key(wdata->extension.input,
+ wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_C],
+ !(ext[5] & 0x08));
+ } else {
+ input_report_key(wdata->extension.input,
+ wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_Z],
+ !(ext[5] & 0x01));
+ input_report_key(wdata->extension.input,
+ wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_C],
+ !(ext[5] & 0x02));
+ }
+
+ input_sync(wdata->extension.input);
+}
+
+static int wiimod_nunchuk_open(struct input_dev *dev)
+{
+ struct wiimote_data *wdata = input_get_drvdata(dev);
+ unsigned long flags;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
+ wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+ return 0;
+}
+
+static void wiimod_nunchuk_close(struct input_dev *dev)
+{
+ struct wiimote_data *wdata = input_get_drvdata(dev);
+ unsigned long flags;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
+ wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+}
+
+static int wiimod_nunchuk_probe(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ int ret, i;
+
+ wdata->extension.input = input_allocate_device();
+ if (!wdata->extension.input)
+ return -ENOMEM;
+
+ input_set_drvdata(wdata->extension.input, wdata);
+ wdata->extension.input->open = wiimod_nunchuk_open;
+ wdata->extension.input->close = wiimod_nunchuk_close;
+ wdata->extension.input->dev.parent = &wdata->hdev->dev;
+ wdata->extension.input->id.bustype = wdata->hdev->bus;
+ wdata->extension.input->id.vendor = wdata->hdev->vendor;
+ wdata->extension.input->id.product = wdata->hdev->product;
+ wdata->extension.input->id.version = wdata->hdev->version;
+ wdata->extension.input->name = WIIMOTE_NAME " Nunchuk";
+
+ set_bit(EV_KEY, wdata->extension.input->evbit);
+ for (i = 0; i < WIIMOD_NUNCHUK_KEY_NUM; ++i)
+ set_bit(wiimod_nunchuk_map[i],
+ wdata->extension.input->keybit);
+
+ set_bit(EV_ABS, wdata->extension.input->evbit);
+ set_bit(ABS_HAT0X, wdata->extension.input->absbit);
+ set_bit(ABS_HAT0Y, wdata->extension.input->absbit);
+ input_set_abs_params(wdata->extension.input,
+ ABS_HAT0X, -120, 120, 2, 4);
+ input_set_abs_params(wdata->extension.input,
+ ABS_HAT0Y, -120, 120, 2, 4);
+ set_bit(ABS_RX, wdata->extension.input->absbit);
+ set_bit(ABS_RY, wdata->extension.input->absbit);
+ set_bit(ABS_RZ, wdata->extension.input->absbit);
+ input_set_abs_params(wdata->extension.input,
+ ABS_RX, -500, 500, 2, 4);
+ input_set_abs_params(wdata->extension.input,
+ ABS_RY, -500, 500, 2, 4);
+ input_set_abs_params(wdata->extension.input,
+ ABS_RZ, -500, 500, 2, 4);
+
+ ret = input_register_device(wdata->extension.input);
+ if (ret)
+ goto err_free;
+
+ return 0;
+
+err_free:
+ input_free_device(wdata->extension.input);
+ wdata->extension.input = NULL;
+ return ret;
+}
+
+static void wiimod_nunchuk_remove(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ if (!wdata->extension.input)
+ return;
+
+ input_unregister_device(wdata->extension.input);
+ wdata->extension.input = NULL;
+}
+
+static const struct wiimod_ops wiimod_nunchuk = {
+ .flags = 0,
+ .arg = 0,
+ .probe = wiimod_nunchuk_probe,
+ .remove = wiimod_nunchuk_remove,
+ .in_ext = wiimod_nunchuk_in_ext,
+};
+
+/*
+ * Classic Controller
+ * Another official extension from Nintendo. It provides a classic
+ * gamecube-like controller that can be hotplugged on the Wii Remote.
+ * It has several hardware buttons and switches that are all reported via
+ * a normal extension device.
+ */
+
+enum wiimod_classic_keys {
+ WIIMOD_CLASSIC_KEY_A,
+ WIIMOD_CLASSIC_KEY_B,
+ WIIMOD_CLASSIC_KEY_X,
+ WIIMOD_CLASSIC_KEY_Y,
+ WIIMOD_CLASSIC_KEY_ZL,
+ WIIMOD_CLASSIC_KEY_ZR,
+ WIIMOD_CLASSIC_KEY_PLUS,
+ WIIMOD_CLASSIC_KEY_MINUS,
+ WIIMOD_CLASSIC_KEY_HOME,
+ WIIMOD_CLASSIC_KEY_LEFT,
+ WIIMOD_CLASSIC_KEY_RIGHT,
+ WIIMOD_CLASSIC_KEY_UP,
+ WIIMOD_CLASSIC_KEY_DOWN,
+ WIIMOD_CLASSIC_KEY_LT,
+ WIIMOD_CLASSIC_KEY_RT,
+ WIIMOD_CLASSIC_KEY_NUM,
+};
+
+static const __u16 wiimod_classic_map[] = {
+ BTN_A, /* WIIMOD_CLASSIC_KEY_A */
+ BTN_B, /* WIIMOD_CLASSIC_KEY_B */
+ BTN_X, /* WIIMOD_CLASSIC_KEY_X */
+ BTN_Y, /* WIIMOD_CLASSIC_KEY_Y */
+ BTN_TL2, /* WIIMOD_CLASSIC_KEY_ZL */
+ BTN_TR2, /* WIIMOD_CLASSIC_KEY_ZR */
+ KEY_NEXT, /* WIIMOD_CLASSIC_KEY_PLUS */
+ KEY_PREVIOUS, /* WIIMOD_CLASSIC_KEY_MINUS */
+ BTN_MODE, /* WIIMOD_CLASSIC_KEY_HOME */
+ KEY_LEFT, /* WIIMOD_CLASSIC_KEY_LEFT */
+ KEY_RIGHT, /* WIIMOD_CLASSIC_KEY_RIGHT */
+ KEY_UP, /* WIIMOD_CLASSIC_KEY_UP */
+ KEY_DOWN, /* WIIMOD_CLASSIC_KEY_DOWN */
+ BTN_TL, /* WIIMOD_CLASSIC_KEY_LT */
+ BTN_TR, /* WIIMOD_CLASSIC_KEY_RT */
+};
+
+static void wiimod_classic_in_ext(struct wiimote_data *wdata, const __u8 *ext)
+{
+ __s8 rx, ry, lx, ly, lt, rt;
+
+ /* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
+ * -----+-----+-----+-----+-----+-----+-----+-----+-----+
+ * 1 | RX <5:4> | LX <5:0> |
+ * 2 | RX <3:2> | LY <5:0> |
+ * -----+-----+-----+-----+-----------------------------+
+ * 3 |RX<1>| LT <5:4> | RY <5:1> |
+ * -----+-----+-----------+-----------------------------+
+ * 4 | LT <3:1> | RT <5:1> |
+ * -----+-----+-----+-----+-----+-----+-----+-----+-----+
+ * 5 | BDR | BDD | BLT | B- | BH | B+ | BRT | 1 |
+ * -----+-----+-----+-----+-----+-----+-----+-----+-----+
+ * 6 | BZL | BB | BY | BA | BX | BZR | BDL | BDU |
+ * -----+-----+-----+-----+-----+-----+-----+-----+-----+
+ * All buttons are 0 if pressed
+ * RX and RY are right analog stick
+ * LX and LY are left analog stick
+ * LT is left trigger, RT is right trigger
+ * BLT is 0 if left trigger is fully pressed
+ * BRT is 0 if right trigger is fully pressed
+ * BDR, BDD, BDL, BDU form the D-Pad with right, down, left, up buttons
+ * BZL is left Z button and BZR is right Z button
+ * B-, BH, B+ are +, HOME and - buttons
+ * BB, BY, BA, BX are A, B, X, Y buttons
+ * LSB of RX, RY, LT, and RT are not transmitted and always 0.
+ *
+ * With motionp enabled it changes slightly to this:
+ * Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
+ * -----+-----+-----+-----+-----+-----+-----+-----+-----+
+ * 1 | RX <5:4> | LX <5:1> | BDU |
+ * 2 | RX <3:2> | LY <5:1> | BDL |
+ * -----+-----+-----+-----+-----------------------+-----+
+ * 3 |RX<1>| LT <5:4> | RY <5:1> |
+ * -----+-----+-----------+-----------------------------+
+ * 4 | LT <3:1> | RT <5:1> |
+ * -----+-----+-----+-----+-----+-----+-----+-----+-----+
+ * 5 | BDR | BDD | BLT | B- | BH | B+ | BRT | EXT |
+ * -----+-----+-----+-----+-----+-----+-----+-----+-----+
+ * 6 | BZL | BB | BY | BA | BX | BZR | 0 | 0 |
+ * -----+-----+-----+-----+-----+-----+-----+-----+-----+
+ * Only the LSBs of LX and LY are lost. BDU and BDL are moved, the rest
+ * is the same as before.
+ */
+
+ if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
+ lx = ext[0] & 0x3e;
+ ly = ext[1] & 0x3e;
+ } else {
+ lx = ext[0] & 0x3f;
+ ly = ext[1] & 0x3f;
+ }
+
+ rx = (ext[0] >> 3) & 0x18;
+ rx |= (ext[1] >> 5) & 0x06;
+ rx |= (ext[2] >> 7) & 0x01;
+ ry = ext[2] & 0x1f;
+
+ rt = ext[3] & 0x1f;
+ lt = (ext[2] >> 2) & 0x18;
+ lt |= (ext[3] >> 5) & 0x07;
+
+ rx <<= 1;
+ ry <<= 1;
+ rt <<= 1;
+ lt <<= 1;
+
+ input_report_abs(wdata->extension.input, ABS_HAT1X, lx - 0x20);
+ input_report_abs(wdata->extension.input, ABS_HAT1Y, ly - 0x20);
+ input_report_abs(wdata->extension.input, ABS_HAT2X, rx - 0x20);
+ input_report_abs(wdata->extension.input, ABS_HAT2Y, ry - 0x20);
+ input_report_abs(wdata->extension.input, ABS_HAT3X, rt);
+ input_report_abs(wdata->extension.input, ABS_HAT3Y, lt);
+
+ input_report_key(wdata->extension.input,
+ wiimod_classic_map[WIIMOD_CLASSIC_KEY_RIGHT],
+ !(ext[4] & 0x80));
+ input_report_key(wdata->extension.input,
+ wiimod_classic_map[WIIMOD_CLASSIC_KEY_DOWN],
+ !(ext[4] & 0x40));
+ input_report_key(wdata->extension.input,
+ wiimod_classic_map[WIIMOD_CLASSIC_KEY_LT],
+ !(ext[4] & 0x20));
+ input_report_key(wdata->extension.input,
+ wiimod_classic_map[WIIMOD_CLASSIC_KEY_MINUS],
+ !(ext[4] & 0x10));
+ input_report_key(wdata->extension.input,
+ wiimod_classic_map[WIIMOD_CLASSIC_KEY_HOME],
+ !(ext[4] & 0x08));
+ input_report_key(wdata->extension.input,
+ wiimod_classic_map[WIIMOD_CLASSIC_KEY_PLUS],
+ !(ext[4] & 0x04));
+ input_report_key(wdata->extension.input,
+ wiimod_classic_map[WIIMOD_CLASSIC_KEY_RT],
+ !(ext[4] & 0x02));
+ input_report_key(wdata->extension.input,
+ wiimod_classic_map[WIIMOD_CLASSIC_KEY_ZL],
+ !(ext[5] & 0x80));
+ input_report_key(wdata->extension.input,
+ wiimod_classic_map[WIIMOD_CLASSIC_KEY_B],
+ !(ext[5] & 0x40));
+ input_report_key(wdata->extension.input,
+ wiimod_classic_map[WIIMOD_CLASSIC_KEY_Y],
+ !(ext[5] & 0x20));
+ input_report_key(wdata->extension.input,
+ wiimod_classic_map[WIIMOD_CLASSIC_KEY_A],
+ !(ext[5] & 0x10));
+ input_report_key(wdata->extension.input,
+ wiimod_classic_map[WIIMOD_CLASSIC_KEY_X],
+ !(ext[5] & 0x08));
+ input_report_key(wdata->extension.input,
+ wiimod_classic_map[WIIMOD_CLASSIC_KEY_ZR],
+ !(ext[5] & 0x04));
+
+ if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
+ input_report_key(wdata->extension.input,
+ wiimod_classic_map[WIIMOD_CLASSIC_KEY_LEFT],
+ !(ext[1] & 0x01));
+ input_report_key(wdata->extension.input,
+ wiimod_classic_map[WIIMOD_CLASSIC_KEY_UP],
+ !(ext[0] & 0x01));
+ } else {
+ input_report_key(wdata->extension.input,
+ wiimod_classic_map[WIIMOD_CLASSIC_KEY_LEFT],
+ !(ext[5] & 0x02));
+ input_report_key(wdata->extension.input,
+ wiimod_classic_map[WIIMOD_CLASSIC_KEY_UP],
+ !(ext[5] & 0x01));
+ }
+
+ input_sync(wdata->extension.input);
+}
+
+static int wiimod_classic_open(struct input_dev *dev)
+{
+ struct wiimote_data *wdata = input_get_drvdata(dev);
+ unsigned long flags;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
+ wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+ return 0;
+}
+
+static void wiimod_classic_close(struct input_dev *dev)
+{
+ struct wiimote_data *wdata = input_get_drvdata(dev);
+ unsigned long flags;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
+ wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+}
+
+static int wiimod_classic_probe(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ int ret, i;
+
+ wdata->extension.input = input_allocate_device();
+ if (!wdata->extension.input)
+ return -ENOMEM;
+
+ input_set_drvdata(wdata->extension.input, wdata);
+ wdata->extension.input->open = wiimod_classic_open;
+ wdata->extension.input->close = wiimod_classic_close;
+ wdata->extension.input->dev.parent = &wdata->hdev->dev;
+ wdata->extension.input->id.bustype = wdata->hdev->bus;
+ wdata->extension.input->id.vendor = wdata->hdev->vendor;
+ wdata->extension.input->id.product = wdata->hdev->product;
+ wdata->extension.input->id.version = wdata->hdev->version;
+ wdata->extension.input->name = WIIMOTE_NAME " Classic Controller";
+
+ set_bit(EV_KEY, wdata->extension.input->evbit);
+ for (i = 0; i < WIIMOD_CLASSIC_KEY_NUM; ++i)
+ set_bit(wiimod_classic_map[i],
+ wdata->extension.input->keybit);
+
+ set_bit(EV_ABS, wdata->extension.input->evbit);
+ set_bit(ABS_HAT1X, wdata->extension.input->absbit);
+ set_bit(ABS_HAT1Y, wdata->extension.input->absbit);
+ set_bit(ABS_HAT2X, wdata->extension.input->absbit);
+ set_bit(ABS_HAT2Y, wdata->extension.input->absbit);
+ set_bit(ABS_HAT3X, wdata->extension.input->absbit);
+ set_bit(ABS_HAT3Y, wdata->extension.input->absbit);
+ input_set_abs_params(wdata->extension.input,
+ ABS_HAT1X, -30, 30, 1, 1);
+ input_set_abs_params(wdata->extension.input,
+ ABS_HAT1Y, -30, 30, 1, 1);
+ input_set_abs_params(wdata->extension.input,
+ ABS_HAT2X, -30, 30, 1, 1);
+ input_set_abs_params(wdata->extension.input,
+ ABS_HAT2Y, -30, 30, 1, 1);
+ input_set_abs_params(wdata->extension.input,
+ ABS_HAT3X, -30, 30, 1, 1);
+ input_set_abs_params(wdata->extension.input,
+ ABS_HAT3Y, -30, 30, 1, 1);
+
+ ret = input_register_device(wdata->extension.input);
+ if (ret)
+ goto err_free;
+
+ return 0;
+
+err_free:
+ input_free_device(wdata->extension.input);
+ wdata->extension.input = NULL;
+ return ret;
+}
+
+static void wiimod_classic_remove(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ if (!wdata->extension.input)
+ return;
+
+ input_unregister_device(wdata->extension.input);
+ wdata->extension.input = NULL;
+}
+
+static const struct wiimod_ops wiimod_classic = {
+ .flags = 0,
+ .arg = 0,
+ .probe = wiimod_classic_probe,
+ .remove = wiimod_classic_remove,
+ .in_ext = wiimod_classic_in_ext,
+};
+
+/*
+ * Balance Board Extension
+ * The Nintendo Wii Balance Board provides four hardware weight sensor plus a
+ * single push button. No other peripherals are available. However, the
+ * balance-board data is sent via a standard Wii Remote extension. All other
+ * data for non-present hardware is zeroed out.
+ * Some 3rd party devices react allergic if we try to access normal Wii Remote
+ * hardware, so this extension module should be the only module that is loaded
+ * on balance boards.
+ * The balance board needs 8 bytes extension data instead of basic 6 bytes so
+ * it needs the WIIMOD_FLAG_EXT8 flag.
+ */
+
+static void wiimod_bboard_in_keys(struct wiimote_data *wdata, const __u8 *keys)
+{
+ input_report_key(wdata->extension.input, BTN_A,
+ !!(keys[1] & 0x08));
+ input_sync(wdata->extension.input);
+}
+
+static void wiimod_bboard_in_ext(struct wiimote_data *wdata,
+ const __u8 *ext)
+{
+ __s32 val[4], tmp, div;
+ unsigned int i;
+ struct wiimote_state *s = &wdata->state;
+
+ /*
+ * Balance board data layout:
+ *
+ * Byte | 8 7 6 5 4 3 2 1 |
+ * -----+--------------------------+
+ * 1 | Top Right <15:8> |
+ * 2 | Top Right <7:0> |
+ * -----+--------------------------+
+ * 3 | Bottom Right <15:8> |
+ * 4 | Bottom Right <7:0> |
+ * -----+--------------------------+
+ * 5 | Top Left <15:8> |
+ * 6 | Top Left <7:0> |
+ * -----+--------------------------+
+ * 7 | Bottom Left <15:8> |
+ * 8 | Bottom Left <7:0> |
+ * -----+--------------------------+
+ *
+ * These values represent the weight-measurements of the Wii-balance
+ * board with 16bit precision.
+ *
+ * The balance-board is never reported interleaved with motionp.
+ */
+
+ val[0] = ext[0];
+ val[0] <<= 8;
+ val[0] |= ext[1];
+
+ val[1] = ext[2];
+ val[1] <<= 8;
+ val[1] |= ext[3];
+
+ val[2] = ext[4];
+ val[2] <<= 8;
+ val[2] |= ext[5];
+
+ val[3] = ext[6];
+ val[3] <<= 8;
+ val[3] |= ext[7];
+
+ /* apply calibration data */
+ for (i = 0; i < 4; i++) {
+ if (val[i] <= s->calib_bboard[i][0]) {
+ tmp = 0;
+ } else if (val[i] < s->calib_bboard[i][1]) {
+ tmp = val[i] - s->calib_bboard[i][0];
+ tmp *= 1700;
+ div = s->calib_bboard[i][1] - s->calib_bboard[i][0];
+ tmp /= div ? div : 1;
+ } else {
+ tmp = val[i] - s->calib_bboard[i][1];
+ tmp *= 1700;
+ div = s->calib_bboard[i][2] - s->calib_bboard[i][1];
+ tmp /= div ? div : 1;
+ tmp += 1700;
+ }
+ val[i] = tmp;
+ }
+
+ input_report_abs(wdata->extension.input, ABS_HAT0X, val[0]);
+ input_report_abs(wdata->extension.input, ABS_HAT0Y, val[1]);
+ input_report_abs(wdata->extension.input, ABS_HAT1X, val[2]);
+ input_report_abs(wdata->extension.input, ABS_HAT1Y, val[3]);
+ input_sync(wdata->extension.input);
+}
+
+static int wiimod_bboard_open(struct input_dev *dev)
+{
+ struct wiimote_data *wdata = input_get_drvdata(dev);
+ unsigned long flags;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
+ wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+ return 0;
+}
+
+static void wiimod_bboard_close(struct input_dev *dev)
+{
+ struct wiimote_data *wdata = input_get_drvdata(dev);
+ unsigned long flags;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
+ wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+}
+
+static ssize_t wiimod_bboard_calib_show(struct device *dev,
+ struct device_attribute *attr,
+ char *out)
+{
+ struct wiimote_data *wdata = dev_to_wii(dev);
+ int i, j, ret;
+ __u16 val;
+ __u8 buf[24], offs;
+
+ ret = wiimote_cmd_acquire(wdata);
+ if (ret)
+ return ret;
+
+ ret = wiimote_cmd_read(wdata, 0xa40024, buf, 12);
+ if (ret != 12) {
+ wiimote_cmd_release(wdata);
+ return ret < 0 ? ret : -EIO;
+ }
+ ret = wiimote_cmd_read(wdata, 0xa40024 + 12, buf + 12, 12);
+ if (ret != 12) {
+ wiimote_cmd_release(wdata);
+ return ret < 0 ? ret : -EIO;
+ }
+
+ wiimote_cmd_release(wdata);
+
+ spin_lock_irq(&wdata->state.lock);
+ offs = 0;
+ for (i = 0; i < 3; ++i) {
+ for (j = 0; j < 4; ++j) {
+ wdata->state.calib_bboard[j][i] = buf[offs];
+ wdata->state.calib_bboard[j][i] <<= 8;
+ wdata->state.calib_bboard[j][i] |= buf[offs + 1];
+ offs += 2;
+ }
+ }
+ spin_unlock_irq(&wdata->state.lock);
+
+ ret = 0;
+ for (i = 0; i < 3; ++i) {
+ for (j = 0; j < 4; ++j) {
+ val = wdata->state.calib_bboard[j][i];
+ if (i == 2 && j == 3)
+ ret += sprintf(&out[ret], "%04x\n", val);
+ else
+ ret += sprintf(&out[ret], "%04x:", val);
+ }
+ }
+
+ return ret;
+}
+
+static DEVICE_ATTR(bboard_calib, S_IRUGO, wiimod_bboard_calib_show, NULL);
+
+static int wiimod_bboard_probe(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ int ret, i, j;
+ __u8 buf[24], offs;
+
+ wiimote_cmd_acquire_noint(wdata);
+
+ ret = wiimote_cmd_read(wdata, 0xa40024, buf, 12);
+ if (ret != 12) {
+ wiimote_cmd_release(wdata);
+ return ret < 0 ? ret : -EIO;
+ }
+ ret = wiimote_cmd_read(wdata, 0xa40024 + 12, buf + 12, 12);
+ if (ret != 12) {
+ wiimote_cmd_release(wdata);
+ return ret < 0 ? ret : -EIO;
+ }
+
+ wiimote_cmd_release(wdata);
+
+ offs = 0;
+ for (i = 0; i < 3; ++i) {
+ for (j = 0; j < 4; ++j) {
+ wdata->state.calib_bboard[j][i] = buf[offs];
+ wdata->state.calib_bboard[j][i] <<= 8;
+ wdata->state.calib_bboard[j][i] |= buf[offs + 1];
+ offs += 2;
+ }
+ }
+
+ wdata->extension.input = input_allocate_device();
+ if (!wdata->extension.input)
+ return -ENOMEM;
+
+ ret = device_create_file(&wdata->hdev->dev,
+ &dev_attr_bboard_calib);
+ if (ret) {
+ hid_err(wdata->hdev, "cannot create sysfs attribute\n");
+ goto err_free;
+ }
+
+ input_set_drvdata(wdata->extension.input, wdata);
+ wdata->extension.input->open = wiimod_bboard_open;
+ wdata->extension.input->close = wiimod_bboard_close;
+ wdata->extension.input->dev.parent = &wdata->hdev->dev;
+ wdata->extension.input->id.bustype = wdata->hdev->bus;
+ wdata->extension.input->id.vendor = wdata->hdev->vendor;
+ wdata->extension.input->id.product = wdata->hdev->product;
+ wdata->extension.input->id.version = wdata->hdev->version;
+ wdata->extension.input->name = WIIMOTE_NAME " Balance Board";
+
+ set_bit(EV_KEY, wdata->extension.input->evbit);
+ set_bit(BTN_A, wdata->extension.input->keybit);
+
+ set_bit(EV_ABS, wdata->extension.input->evbit);
+ set_bit(ABS_HAT0X, wdata->extension.input->absbit);
+ set_bit(ABS_HAT0Y, wdata->extension.input->absbit);
+ set_bit(ABS_HAT1X, wdata->extension.input->absbit);
+ set_bit(ABS_HAT1Y, wdata->extension.input->absbit);
+ input_set_abs_params(wdata->extension.input,
+ ABS_HAT0X, 0, 65535, 2, 4);
+ input_set_abs_params(wdata->extension.input,
+ ABS_HAT0Y, 0, 65535, 2, 4);
+ input_set_abs_params(wdata->extension.input,
+ ABS_HAT1X, 0, 65535, 2, 4);
+ input_set_abs_params(wdata->extension.input,
+ ABS_HAT1Y, 0, 65535, 2, 4);
+
+ ret = input_register_device(wdata->extension.input);
+ if (ret)
+ goto err_file;
+
+ return 0;
+
+err_file:
+ device_remove_file(&wdata->hdev->dev,
+ &dev_attr_bboard_calib);
+err_free:
+ input_free_device(wdata->extension.input);
+ wdata->extension.input = NULL;
+ return ret;
+}
+
+static void wiimod_bboard_remove(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ if (!wdata->extension.input)
+ return;
+
+ input_unregister_device(wdata->extension.input);
+ wdata->extension.input = NULL;
+ device_remove_file(&wdata->hdev->dev,
+ &dev_attr_bboard_calib);
+}
+
+static const struct wiimod_ops wiimod_bboard = {
+ .flags = WIIMOD_FLAG_EXT8,
+ .arg = 0,
+ .probe = wiimod_bboard_probe,
+ .remove = wiimod_bboard_remove,
+ .in_keys = wiimod_bboard_in_keys,
+ .in_ext = wiimod_bboard_in_ext,
+};
+
+/*
+ * Pro Controller
+ * Released with the Wii U was the Nintendo Wii U Pro Controller. It does not
+ * work together with the classic Wii, but only with the new Wii U. However, it
+ * uses the same protocol and provides a builtin "classic controller pro"
+ * extension, few standard buttons, a rumble motor, 4 LEDs and a battery.
+ * We provide all these via a standard extension device as the device doesn't
+ * feature an extension port.
+ */
+
+enum wiimod_pro_keys {
+ WIIMOD_PRO_KEY_A,
+ WIIMOD_PRO_KEY_B,
+ WIIMOD_PRO_KEY_X,
+ WIIMOD_PRO_KEY_Y,
+ WIIMOD_PRO_KEY_PLUS,
+ WIIMOD_PRO_KEY_MINUS,
+ WIIMOD_PRO_KEY_HOME,
+ WIIMOD_PRO_KEY_LEFT,
+ WIIMOD_PRO_KEY_RIGHT,
+ WIIMOD_PRO_KEY_UP,
+ WIIMOD_PRO_KEY_DOWN,
+ WIIMOD_PRO_KEY_TL,
+ WIIMOD_PRO_KEY_TR,
+ WIIMOD_PRO_KEY_ZL,
+ WIIMOD_PRO_KEY_ZR,
+ WIIMOD_PRO_KEY_THUMBL,
+ WIIMOD_PRO_KEY_THUMBR,
+ WIIMOD_PRO_KEY_NUM,
+};
+
+static const __u16 wiimod_pro_map[] = {
+ BTN_EAST, /* WIIMOD_PRO_KEY_A */
+ BTN_SOUTH, /* WIIMOD_PRO_KEY_B */
+ BTN_NORTH, /* WIIMOD_PRO_KEY_X */
+ BTN_WEST, /* WIIMOD_PRO_KEY_Y */
+ BTN_START, /* WIIMOD_PRO_KEY_PLUS */
+ BTN_SELECT, /* WIIMOD_PRO_KEY_MINUS */
+ BTN_MODE, /* WIIMOD_PRO_KEY_HOME */
+ BTN_DPAD_LEFT, /* WIIMOD_PRO_KEY_LEFT */
+ BTN_DPAD_RIGHT, /* WIIMOD_PRO_KEY_RIGHT */
+ BTN_DPAD_UP, /* WIIMOD_PRO_KEY_UP */
+ BTN_DPAD_DOWN, /* WIIMOD_PRO_KEY_DOWN */
+ BTN_TL, /* WIIMOD_PRO_KEY_TL */
+ BTN_TR, /* WIIMOD_PRO_KEY_TR */
+ BTN_TL2, /* WIIMOD_PRO_KEY_ZL */
+ BTN_TR2, /* WIIMOD_PRO_KEY_ZR */
+ BTN_THUMBL, /* WIIMOD_PRO_KEY_THUMBL */
+ BTN_THUMBR, /* WIIMOD_PRO_KEY_THUMBR */
+};
+
+static void wiimod_pro_in_ext(struct wiimote_data *wdata, const __u8 *ext)
+{
+ __s16 rx, ry, lx, ly;
+
+ /* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
+ * -----+-----+-----+-----+-----+-----+-----+-----+-----+
+ * 1 | LX <7:0> |
+ * -----+-----------------------+-----------------------+
+ * 2 | 0 0 0 0 | LX <11:8> |
+ * -----+-----------------------+-----------------------+
+ * 3 | RX <7:0> |
+ * -----+-----------------------+-----------------------+
+ * 4 | 0 0 0 0 | RX <11:8> |
+ * -----+-----------------------+-----------------------+
+ * 5 | LY <7:0> |
+ * -----+-----------------------+-----------------------+
+ * 6 | 0 0 0 0 | LY <11:8> |
+ * -----+-----------------------+-----------------------+
+ * 7 | RY <7:0> |
+ * -----+-----------------------+-----------------------+
+ * 8 | 0 0 0 0 | RY <11:8> |
+ * -----+-----+-----+-----+-----+-----+-----+-----+-----+
+ * 9 | BDR | BDD | BLT | B- | BH | B+ | BRT | 1 |
+ * -----+-----+-----+-----+-----+-----+-----+-----+-----+
+ * 10 | BZL | BB | BY | BA | BX | BZR | BDL | BDU |
+ * -----+-----+-----+-----+-----+-----+-----+-----+-----+
+ * 11 | 1 | BATTERY | USB |CHARG|LTHUM|RTHUM|
+ * -----+-----+-----------------+-----------+-----+-----+
+ * All buttons are low-active (0 if pressed)
+ * RX and RY are right analog stick
+ * LX and LY are left analog stick
+ * BLT is left trigger, BRT is right trigger.
+ * BDR, BDD, BDL, BDU form the D-Pad with right, down, left, up buttons
+ * BZL is left Z button and BZR is right Z button
+ * B-, BH, B+ are +, HOME and - buttons
+ * BB, BY, BA, BX are A, B, X, Y buttons
+ *
+ * Bits marked as 0/1 are unknown and never changed during tests.
+ *
+ * Not entirely verified:
+ * CHARG: 1 if uncharging, 0 if charging
+ * USB: 1 if not connected, 0 if connected
+ * BATTERY: battery capacity from 000 (empty) to 100 (full)
+ */
+
+ lx = (ext[0] & 0xff) | ((ext[1] & 0x0f) << 8);
+ rx = (ext[2] & 0xff) | ((ext[3] & 0x0f) << 8);
+ ly = (ext[4] & 0xff) | ((ext[5] & 0x0f) << 8);
+ ry = (ext[6] & 0xff) | ((ext[7] & 0x0f) << 8);
+
+ input_report_abs(wdata->extension.input, ABS_X, lx - 0x800);
+ input_report_abs(wdata->extension.input, ABS_Y, ly - 0x800);
+ input_report_abs(wdata->extension.input, ABS_RX, rx - 0x800);
+ input_report_abs(wdata->extension.input, ABS_RY, ry - 0x800);
+
+ input_report_key(wdata->extension.input,
+ wiimod_pro_map[WIIMOD_PRO_KEY_RIGHT],
+ !(ext[8] & 0x80));
+ input_report_key(wdata->extension.input,
+ wiimod_pro_map[WIIMOD_PRO_KEY_DOWN],
+ !(ext[8] & 0x40));
+ input_report_key(wdata->extension.input,
+ wiimod_pro_map[WIIMOD_PRO_KEY_TL],
+ !(ext[8] & 0x20));
+ input_report_key(wdata->extension.input,
+ wiimod_pro_map[WIIMOD_PRO_KEY_MINUS],
+ !(ext[8] & 0x10));
+ input_report_key(wdata->extension.input,
+ wiimod_pro_map[WIIMOD_PRO_KEY_HOME],
+ !(ext[8] & 0x08));
+ input_report_key(wdata->extension.input,
+ wiimod_pro_map[WIIMOD_PRO_KEY_PLUS],
+ !(ext[8] & 0x04));
+ input_report_key(wdata->extension.input,
+ wiimod_pro_map[WIIMOD_PRO_KEY_TR],
+ !(ext[8] & 0x02));
+
+ input_report_key(wdata->extension.input,
+ wiimod_pro_map[WIIMOD_PRO_KEY_ZL],
+ !(ext[9] & 0x80));
+ input_report_key(wdata->extension.input,
+ wiimod_pro_map[WIIMOD_PRO_KEY_B],
+ !(ext[9] & 0x40));
+ input_report_key(wdata->extension.input,
+ wiimod_pro_map[WIIMOD_PRO_KEY_Y],
+ !(ext[9] & 0x20));
+ input_report_key(wdata->extension.input,
+ wiimod_pro_map[WIIMOD_PRO_KEY_A],
+ !(ext[9] & 0x10));
+ input_report_key(wdata->extension.input,
+ wiimod_pro_map[WIIMOD_PRO_KEY_X],
+ !(ext[9] & 0x08));
+ input_report_key(wdata->extension.input,
+ wiimod_pro_map[WIIMOD_PRO_KEY_ZR],
+ !(ext[9] & 0x04));
+ input_report_key(wdata->extension.input,
+ wiimod_pro_map[WIIMOD_PRO_KEY_LEFT],
+ !(ext[9] & 0x02));
+ input_report_key(wdata->extension.input,
+ wiimod_pro_map[WIIMOD_PRO_KEY_UP],
+ !(ext[9] & 0x01));
+
+ input_report_key(wdata->extension.input,
+ wiimod_pro_map[WIIMOD_PRO_KEY_THUMBL],
+ !(ext[10] & 0x02));
+ input_report_key(wdata->extension.input,
+ wiimod_pro_map[WIIMOD_PRO_KEY_THUMBR],
+ !(ext[10] & 0x01));
+
+ input_sync(wdata->extension.input);
+}
+
+static int wiimod_pro_open(struct input_dev *dev)
+{
+ struct wiimote_data *wdata = input_get_drvdata(dev);
+ unsigned long flags;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
+ wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+ return 0;
+}
+
+static void wiimod_pro_close(struct input_dev *dev)
+{
+ struct wiimote_data *wdata = input_get_drvdata(dev);
+ unsigned long flags;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
+ wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+}
+
+static int wiimod_pro_play(struct input_dev *dev, void *data,
+ struct ff_effect *eff)
+{
+ struct wiimote_data *wdata = input_get_drvdata(dev);
+ __u8 value;
+ unsigned long flags;
+
+ /*
+ * The wiimote supports only a single rumble motor so if any magnitude
+ * is set to non-zero then we start the rumble motor. If both are set to
+ * zero, we stop the rumble motor.
+ */
+
+ if (eff->u.rumble.strong_magnitude || eff->u.rumble.weak_magnitude)
+ value = 1;
+ else
+ value = 0;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wiiproto_req_rumble(wdata, value);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+ return 0;
+}
+
+static int wiimod_pro_probe(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ int ret, i;
+
+ wdata->extension.input = input_allocate_device();
+ if (!wdata->extension.input)
+ return -ENOMEM;
+
+ set_bit(FF_RUMBLE, wdata->extension.input->ffbit);
+ input_set_drvdata(wdata->extension.input, wdata);
+
+ if (input_ff_create_memless(wdata->extension.input, NULL,
+ wiimod_pro_play)) {
+ ret = -ENOMEM;
+ goto err_free;
+ }
+
+ wdata->extension.input->open = wiimod_pro_open;
+ wdata->extension.input->close = wiimod_pro_close;
+ wdata->extension.input->dev.parent = &wdata->hdev->dev;
+ wdata->extension.input->id.bustype = wdata->hdev->bus;
+ wdata->extension.input->id.vendor = wdata->hdev->vendor;
+ wdata->extension.input->id.product = wdata->hdev->product;
+ wdata->extension.input->id.version = wdata->hdev->version;
+ wdata->extension.input->name = WIIMOTE_NAME " Pro Controller";
+
+ set_bit(EV_KEY, wdata->extension.input->evbit);
+ for (i = 0; i < WIIMOD_PRO_KEY_NUM; ++i)
+ set_bit(wiimod_pro_map[i],
+ wdata->extension.input->keybit);
+
+ set_bit(EV_ABS, wdata->extension.input->evbit);
+ set_bit(ABS_X, wdata->extension.input->absbit);
+ set_bit(ABS_Y, wdata->extension.input->absbit);
+ set_bit(ABS_RX, wdata->extension.input->absbit);
+ set_bit(ABS_RY, wdata->extension.input->absbit);
+ input_set_abs_params(wdata->extension.input,
+ ABS_X, -0x800, 0x800, 2, 4);
+ input_set_abs_params(wdata->extension.input,
+ ABS_Y, -0x800, 0x800, 2, 4);
+ input_set_abs_params(wdata->extension.input,
+ ABS_RX, -0x800, 0x800, 2, 4);
+ input_set_abs_params(wdata->extension.input,
+ ABS_RY, -0x800, 0x800, 2, 4);
+
+ ret = input_register_device(wdata->extension.input);
+ if (ret)
+ goto err_free;
+
+ return 0;
+
+err_free:
+ input_free_device(wdata->extension.input);
+ wdata->extension.input = NULL;
+ return ret;
+}
+
+static void wiimod_pro_remove(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ unsigned long flags;
+
+ if (!wdata->extension.input)
+ return;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wiiproto_req_rumble(wdata, 0);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+ input_unregister_device(wdata->extension.input);
+ wdata->extension.input = NULL;
+}
+
+static const struct wiimod_ops wiimod_pro = {
+ .flags = WIIMOD_FLAG_EXT16,
+ .arg = 0,
+ .probe = wiimod_pro_probe,
+ .remove = wiimod_pro_remove,
+ .in_ext = wiimod_pro_in_ext,
+};
+
+/*
+ * Builtin Motion Plus
+ * This module simply sets the WIIPROTO_FLAG_BUILTIN_MP protocol flag which
+ * disables polling for Motion-Plus. This should be set only for devices which
+ * don't allow MP hotplugging.
+ */
+
+static int wiimod_builtin_mp_probe(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wdata->state.flags |= WIIPROTO_FLAG_BUILTIN_MP;
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+ return 0;
+}
+
+static void wiimod_builtin_mp_remove(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wdata->state.flags |= WIIPROTO_FLAG_BUILTIN_MP;
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+}
+
+static const struct wiimod_ops wiimod_builtin_mp = {
+ .flags = 0,
+ .arg = 0,
+ .probe = wiimod_builtin_mp_probe,
+ .remove = wiimod_builtin_mp_remove,
+};
+
+/*
+ * No Motion Plus
+ * This module simply sets the WIIPROTO_FLAG_NO_MP protocol flag which
+ * disables motion-plus. This is needed for devices that advertise this but we
+ * don't know how to use it (or whether it is actually present).
+ */
+
+static int wiimod_no_mp_probe(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wdata->state.flags |= WIIPROTO_FLAG_NO_MP;
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+ return 0;
+}
+
+static void wiimod_no_mp_remove(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wdata->state.flags |= WIIPROTO_FLAG_NO_MP;
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+}
+
+static const struct wiimod_ops wiimod_no_mp = {
+ .flags = 0,
+ .arg = 0,
+ .probe = wiimod_no_mp_probe,
+ .remove = wiimod_no_mp_remove,
+};
+
+/*
+ * Motion Plus
+ * The Motion Plus extension provides rotation sensors (gyro) as a small
+ * extension device for Wii Remotes. Many devices have them built-in so
+ * you cannot see them from the outside.
+ * Motion Plus extensions are special because they are on a separate extension
+ * port and allow other extensions to be used simultaneously. This is all
+ * handled by the Wiimote Core so we don't have to deal with it.
+ */
+
+static void wiimod_mp_in_mp(struct wiimote_data *wdata, const __u8 *ext)
+{
+ __s32 x, y, z;
+
+ /* | 8 7 6 5 4 3 | 2 | 1 |
+ * -----+------------------------------+-----+-----+
+ * 1 | Yaw Speed <7:0> |
+ * 2 | Roll Speed <7:0> |
+ * 3 | Pitch Speed <7:0> |
+ * -----+------------------------------+-----+-----+
+ * 4 | Yaw Speed <13:8> | Yaw |Pitch|
+ * -----+------------------------------+-----+-----+
+ * 5 | Roll Speed <13:8> |Roll | Ext |
+ * -----+------------------------------+-----+-----+
+ * 6 | Pitch Speed <13:8> | 1 | 0 |
+ * -----+------------------------------+-----+-----+
+ * The single bits Yaw, Roll, Pitch in the lower right corner specify
+ * whether the wiimote is rotating fast (0) or slow (1). Speed for slow
+ * roation is 440 deg/s and for fast rotation 2000 deg/s. To get a
+ * linear scale we multiply by 2000/440 = ~4.5454 which is 18 for fast
+ * and 9 for slow.
+ * If the wiimote is not rotating the sensor reports 2^13 = 8192.
+ * Ext specifies whether an extension is connected to the motionp.
+ * which is parsed by wiimote-core.
+ */
+
+ x = ext[0];
+ y = ext[1];
+ z = ext[2];
+
+ x |= (((__u16)ext[3]) << 6) & 0xff00;
+ y |= (((__u16)ext[4]) << 6) & 0xff00;
+ z |= (((__u16)ext[5]) << 6) & 0xff00;
+
+ x -= 8192;
+ y -= 8192;
+ z -= 8192;
+
+ if (!(ext[3] & 0x02))
+ x *= 18;
+ else
+ x *= 9;
+ if (!(ext[4] & 0x02))
+ y *= 18;
+ else
+ y *= 9;
+ if (!(ext[3] & 0x01))
+ z *= 18;
+ else
+ z *= 9;
+
+ input_report_abs(wdata->mp, ABS_RX, x);
+ input_report_abs(wdata->mp, ABS_RY, y);
+ input_report_abs(wdata->mp, ABS_RZ, z);
+ input_sync(wdata->mp);
+}
+
+static int wiimod_mp_open(struct input_dev *dev)
+{
+ struct wiimote_data *wdata = input_get_drvdata(dev);
+ unsigned long flags;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wdata->state.flags |= WIIPROTO_FLAG_MP_USED;
+ wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
+ __wiimote_schedule(wdata);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+ return 0;
+}
+
+static void wiimod_mp_close(struct input_dev *dev)
+{
+ struct wiimote_data *wdata = input_get_drvdata(dev);
+ unsigned long flags;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wdata->state.flags &= ~WIIPROTO_FLAG_MP_USED;
+ wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
+ __wiimote_schedule(wdata);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+}
+
+static int wiimod_mp_probe(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ int ret;
+
+ wdata->mp = input_allocate_device();
+ if (!wdata->mp)
+ return -ENOMEM;
+
+ input_set_drvdata(wdata->mp, wdata);
+ wdata->mp->open = wiimod_mp_open;
+ wdata->mp->close = wiimod_mp_close;
+ wdata->mp->dev.parent = &wdata->hdev->dev;
+ wdata->mp->id.bustype = wdata->hdev->bus;
+ wdata->mp->id.vendor = wdata->hdev->vendor;
+ wdata->mp->id.product = wdata->hdev->product;
+ wdata->mp->id.version = wdata->hdev->version;
+ wdata->mp->name = WIIMOTE_NAME " Motion Plus";
+
+ set_bit(EV_ABS, wdata->mp->evbit);
+ set_bit(ABS_RX, wdata->mp->absbit);
+ set_bit(ABS_RY, wdata->mp->absbit);
+ set_bit(ABS_RZ, wdata->mp->absbit);
+ input_set_abs_params(wdata->mp,
+ ABS_RX, -16000, 16000, 4, 8);
+ input_set_abs_params(wdata->mp,
+ ABS_RY, -16000, 16000, 4, 8);
+ input_set_abs_params(wdata->mp,
+ ABS_RZ, -16000, 16000, 4, 8);
+
+ ret = input_register_device(wdata->mp);
+ if (ret)
+ goto err_free;
+
+ return 0;
+
+err_free:
+ input_free_device(wdata->mp);
+ wdata->mp = NULL;
+ return ret;
+}
+
+static void wiimod_mp_remove(const struct wiimod_ops *ops,
+ struct wiimote_data *wdata)
+{
+ if (!wdata->mp)
+ return;
+
+ input_unregister_device(wdata->mp);
+ wdata->mp = NULL;
+}
+
+const struct wiimod_ops wiimod_mp = {
+ .flags = 0,
+ .arg = 0,
+ .probe = wiimod_mp_probe,
+ .remove = wiimod_mp_remove,
+ .in_mp = wiimod_mp_in_mp,
+};
+
+/* module table */
+
+static const struct wiimod_ops wiimod_dummy;
+
+const struct wiimod_ops *wiimod_table[WIIMOD_NUM] = {
+ [WIIMOD_KEYS] = &wiimod_keys,
+ [WIIMOD_RUMBLE] = &wiimod_rumble,
+ [WIIMOD_BATTERY] = &wiimod_battery,
+ [WIIMOD_LED1] = &wiimod_leds[0],
+ [WIIMOD_LED2] = &wiimod_leds[1],
+ [WIIMOD_LED3] = &wiimod_leds[2],
+ [WIIMOD_LED4] = &wiimod_leds[3],
+ [WIIMOD_ACCEL] = &wiimod_accel,
+ [WIIMOD_IR] = &wiimod_ir,
+ [WIIMOD_BUILTIN_MP] = &wiimod_builtin_mp,
+ [WIIMOD_NO_MP] = &wiimod_no_mp,
+};
+
+const struct wiimod_ops *wiimod_ext_table[WIIMOTE_EXT_NUM] = {
+ [WIIMOTE_EXT_NONE] = &wiimod_dummy,
+ [WIIMOTE_EXT_UNKNOWN] = &wiimod_dummy,
+ [WIIMOTE_EXT_NUNCHUK] = &wiimod_nunchuk,
+ [WIIMOTE_EXT_CLASSIC_CONTROLLER] = &wiimod_classic,
+ [WIIMOTE_EXT_BALANCE_BOARD] = &wiimod_bboard,
+ [WIIMOTE_EXT_PRO_CONTROLLER] = &wiimod_pro,
+};
#define __HID_WIIMOTE_H
/*
- * HID driver for Nintendo Wiimote devices
- * Copyright (c) 2011 David Herrmann
+ * HID driver for Nintendo Wii / Wii U peripherals
+ * Copyright (c) 2011-2013 David Herrmann <dh.herrmann@gmail.com>
*/
/*
#include <linux/mutex.h>
#include <linux/power_supply.h>
#include <linux/spinlock.h>
+#include <linux/timer.h>
#define WIIMOTE_NAME "Nintendo Wii Remote"
#define WIIMOTE_BUFSIZE 32
#define WIIPROTO_FLAG_IR_BASIC 0x40
#define WIIPROTO_FLAG_IR_EXT 0x80
#define WIIPROTO_FLAG_IR_FULL 0xc0 /* IR_BASIC | IR_EXT */
+#define WIIPROTO_FLAG_EXT_PLUGGED 0x0100
+#define WIIPROTO_FLAG_EXT_USED 0x0200
+#define WIIPROTO_FLAG_EXT_ACTIVE 0x0400
+#define WIIPROTO_FLAG_MP_PLUGGED 0x0800
+#define WIIPROTO_FLAG_MP_USED 0x1000
+#define WIIPROTO_FLAG_MP_ACTIVE 0x2000
+#define WIIPROTO_FLAG_EXITING 0x4000
+#define WIIPROTO_FLAG_DRM_LOCKED 0x8000
+#define WIIPROTO_FLAG_BUILTIN_MP 0x010000
+#define WIIPROTO_FLAG_NO_MP 0x020000
+
#define WIIPROTO_FLAGS_LEDS (WIIPROTO_FLAG_LED1 | WIIPROTO_FLAG_LED2 | \
WIIPROTO_FLAG_LED3 | WIIPROTO_FLAG_LED4)
#define WIIPROTO_FLAGS_IR (WIIPROTO_FLAG_IR_BASIC | WIIPROTO_FLAG_IR_EXT | \
/* return flag for led \num */
#define WIIPROTO_FLAG_LED(num) (WIIPROTO_FLAG_LED1 << (num - 1))
+enum wiiproto_keys {
+ WIIPROTO_KEY_LEFT,
+ WIIPROTO_KEY_RIGHT,
+ WIIPROTO_KEY_UP,
+ WIIPROTO_KEY_DOWN,
+ WIIPROTO_KEY_PLUS,
+ WIIPROTO_KEY_MINUS,
+ WIIPROTO_KEY_ONE,
+ WIIPROTO_KEY_TWO,
+ WIIPROTO_KEY_A,
+ WIIPROTO_KEY_B,
+ WIIPROTO_KEY_HOME,
+ WIIPROTO_KEY_COUNT
+};
+
+enum wiimote_devtype {
+ WIIMOTE_DEV_PENDING,
+ WIIMOTE_DEV_UNKNOWN,
+ WIIMOTE_DEV_GENERIC,
+ WIIMOTE_DEV_GEN10,
+ WIIMOTE_DEV_GEN20,
+ WIIMOTE_DEV_BALANCE_BOARD,
+ WIIMOTE_DEV_PRO_CONTROLLER,
+ WIIMOTE_DEV_NUM,
+};
+
+enum wiimote_exttype {
+ WIIMOTE_EXT_NONE,
+ WIIMOTE_EXT_UNKNOWN,
+ WIIMOTE_EXT_NUNCHUK,
+ WIIMOTE_EXT_CLASSIC_CONTROLLER,
+ WIIMOTE_EXT_BALANCE_BOARD,
+ WIIMOTE_EXT_PRO_CONTROLLER,
+ WIIMOTE_EXT_NUM,
+};
+
+enum wiimote_mptype {
+ WIIMOTE_MP_NONE,
+ WIIMOTE_MP_UNKNOWN,
+ WIIMOTE_MP_SINGLE,
+ WIIMOTE_MP_PASSTHROUGH_NUNCHUK,
+ WIIMOTE_MP_PASSTHROUGH_CLASSIC,
+};
+
struct wiimote_buf {
__u8 data[HID_MAX_BUFFER_SIZE];
size_t size;
};
+struct wiimote_queue {
+ spinlock_t lock;
+ struct work_struct worker;
+ __u8 head;
+ __u8 tail;
+ struct wiimote_buf outq[WIIMOTE_BUFSIZE];
+};
+
struct wiimote_state {
spinlock_t lock;
- __u8 flags;
+ __u32 flags;
__u8 accel_split[2];
__u8 drm;
+ __u8 devtype;
+ __u8 exttype;
+ __u8 mp;
/* synchronous cmd requests */
struct mutex sync;
__u8 cmd_err;
__u8 *cmd_read_buf;
__u8 cmd_read_size;
+
+ /* calibration data */
+ __u16 calib_bboard[4][3];
};
struct wiimote_data {
struct input_dev *accel;
struct input_dev *ir;
struct power_supply battery;
- struct wiimote_ext *ext;
+ struct input_dev *mp;
+ struct timer_list timer;
struct wiimote_debug *debug;
- spinlock_t qlock;
- __u8 head;
- __u8 tail;
- struct wiimote_buf outq[WIIMOTE_BUFSIZE];
- struct work_struct worker;
+ union {
+ struct input_dev *input;
+ } extension;
+ struct wiimote_queue queue;
struct wiimote_state state;
+ struct work_struct init_worker;
+};
+
+/* wiimote modules */
+
+enum wiimod_module {
+ WIIMOD_KEYS,
+ WIIMOD_RUMBLE,
+ WIIMOD_BATTERY,
+ WIIMOD_LED1,
+ WIIMOD_LED2,
+ WIIMOD_LED3,
+ WIIMOD_LED4,
+ WIIMOD_ACCEL,
+ WIIMOD_IR,
+ WIIMOD_BUILTIN_MP,
+ WIIMOD_NO_MP,
+ WIIMOD_NUM,
+ WIIMOD_NULL = WIIMOD_NUM,
+};
+
+#define WIIMOD_FLAG_INPUT 0x0001
+#define WIIMOD_FLAG_EXT8 0x0002
+#define WIIMOD_FLAG_EXT16 0x0004
+
+struct wiimod_ops {
+ __u16 flags;
+ unsigned long arg;
+ int (*probe) (const struct wiimod_ops *ops,
+ struct wiimote_data *wdata);
+ void (*remove) (const struct wiimod_ops *ops,
+ struct wiimote_data *wdata);
+
+ void (*in_keys) (struct wiimote_data *wdata, const __u8 *keys);
+ void (*in_accel) (struct wiimote_data *wdata, const __u8 *accel);
+ void (*in_ir) (struct wiimote_data *wdata, const __u8 *ir, bool packed,
+ unsigned int id);
+ void (*in_mp) (struct wiimote_data *wdata, const __u8 *mp);
+ void (*in_ext) (struct wiimote_data *wdata, const __u8 *ext);
};
+extern const struct wiimod_ops *wiimod_table[WIIMOD_NUM];
+extern const struct wiimod_ops *wiimod_ext_table[WIIMOTE_EXT_NUM];
+extern const struct wiimod_ops wiimod_mp;
+
+/* wiimote requests */
+
enum wiiproto_reqs {
WIIPROTO_REQ_NULL = 0x0,
WIIPROTO_REQ_RUMBLE = 0x10,
WIIPROTO_REQ_STATUS = 0x20,
WIIPROTO_REQ_DATA = 0x21,
WIIPROTO_REQ_RETURN = 0x22,
+
+ /* DRM_K: BB*2 */
WIIPROTO_REQ_DRM_K = 0x30,
+
+ /* DRM_KA: BB*2 AA*3 */
WIIPROTO_REQ_DRM_KA = 0x31,
+
+ /* DRM_KE: BB*2 EE*8 */
WIIPROTO_REQ_DRM_KE = 0x32,
+
+ /* DRM_KAI: BB*2 AA*3 II*12 */
WIIPROTO_REQ_DRM_KAI = 0x33,
+
+ /* DRM_KEE: BB*2 EE*19 */
WIIPROTO_REQ_DRM_KEE = 0x34,
+
+ /* DRM_KAE: BB*2 AA*3 EE*16 */
WIIPROTO_REQ_DRM_KAE = 0x35,
+
+ /* DRM_KIE: BB*2 II*10 EE*9 */
WIIPROTO_REQ_DRM_KIE = 0x36,
+
+ /* DRM_KAIE: BB*2 AA*3 II*10 EE*6 */
WIIPROTO_REQ_DRM_KAIE = 0x37,
+
+ /* DRM_E: EE*21 */
WIIPROTO_REQ_DRM_E = 0x3d,
+
+ /* DRM_SKAI1: BB*2 AA*1 II*18 */
WIIPROTO_REQ_DRM_SKAI1 = 0x3e,
+
+ /* DRM_SKAI2: BB*2 AA*1 II*18 */
WIIPROTO_REQ_DRM_SKAI2 = 0x3f,
+
WIIPROTO_REQ_MAX
};
#define dev_to_wii(pdev) hid_get_drvdata(container_of(pdev, struct hid_device, \
dev))
+void __wiimote_schedule(struct wiimote_data *wdata);
+
extern void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm);
+extern void wiiproto_req_rumble(struct wiimote_data *wdata, __u8 rumble);
+extern void wiiproto_req_leds(struct wiimote_data *wdata, int leds);
+extern void wiiproto_req_status(struct wiimote_data *wdata);
+extern void wiiproto_req_accel(struct wiimote_data *wdata, __u8 accel);
+extern void wiiproto_req_ir1(struct wiimote_data *wdata, __u8 flags);
+extern void wiiproto_req_ir2(struct wiimote_data *wdata, __u8 flags);
extern int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset,
const __u8 *wmem, __u8 size);
extern ssize_t wiimote_cmd_read(struct wiimote_data *wdata, __u32 offset,
extern void wiiproto_req_rmem(struct wiimote_data *wdata, bool eeprom,
__u32 offset, __u16 size);
-#ifdef CONFIG_HID_WIIMOTE_EXT
-
-extern int wiiext_init(struct wiimote_data *wdata);
-extern void wiiext_deinit(struct wiimote_data *wdata);
-extern void wiiext_event(struct wiimote_data *wdata, bool plugged);
-extern bool wiiext_active(struct wiimote_data *wdata);
-extern void wiiext_handle(struct wiimote_data *wdata, const __u8 *payload);
-
-#else
-
-static inline int wiiext_init(void *u) { return 0; }
-static inline void wiiext_deinit(void *u) { }
-static inline void wiiext_event(void *u, bool p) { }
-static inline bool wiiext_active(void *u) { return false; }
-static inline void wiiext_handle(void *u, const __u8 *p) { }
-
-#endif
-
#ifdef CONFIG_DEBUG_FS
extern int wiidebug_init(struct wiimote_data *wdata);
complete(&wdata->state.ready);
}
+/* requires the state.lock spinlock to be held */
+static inline void wiimote_cmd_abort(struct wiimote_data *wdata)
+{
+ /* Abort synchronous request by waking up the sleeping caller. But
+ * reset the state.cmd field to an invalid value so no further event
+ * handlers will work with it. */
+ wdata->state.cmd = WIIPROTO_REQ_MAX;
+ complete(&wdata->state.ready);
+}
+
static inline int wiimote_cmd_acquire(struct wiimote_data *wdata)
{
return mutex_lock_interruptible(&wdata->state.sync) ? -ERESTARTSYS : 0;
}
+static inline void wiimote_cmd_acquire_noint(struct wiimote_data *wdata)
+{
+ mutex_lock(&wdata->state.sync);
+}
+
/* requires the state.lock spinlock to be held */
static inline void wiimote_cmd_set(struct wiimote_data *wdata, int cmd,
__u32 opt)
{
int ret;
+ /* The completion acts as implicit memory barrier so we can safely
+ * assume that state.cmd is set on success/failure and isn't accessed
+ * by any other thread, anymore. */
+
ret = wait_for_completion_interruptible_timeout(&wdata->state.ready, HZ);
if (ret < 0)
return -ERESTARTSYS;
else if (ret == 0)
return -EIO;
+ else if (wdata->state.cmd != WIIPROTO_REQ_NULL)
+ return -EIO;
+ else
+ return 0;
+}
+
+static inline int wiimote_cmd_wait_noint(struct wiimote_data *wdata)
+{
+ unsigned long ret;
+
+ /* no locking needed; see wiimote_cmd_wait() */
+ ret = wait_for_completion_timeout(&wdata->state.ready, HZ);
+ if (!ret)
+ return -EIO;
+ else if (wdata->state.cmd != WIIPROTO_REQ_NULL)
+ return -EIO;
else
return 0;
}
#define BTN_DEAD 0x12f
#define BTN_GAMEPAD 0x130
-#define BTN_A 0x130
-#define BTN_B 0x131
+#define BTN_SOUTH 0x130
+#define BTN_A BTN_SOUTH
+#define BTN_EAST 0x131
+#define BTN_B BTN_EAST
#define BTN_C 0x132
-#define BTN_X 0x133
-#define BTN_Y 0x134
+#define BTN_NORTH 0x133
+#define BTN_X BTN_NORTH
+#define BTN_WEST 0x134
+#define BTN_Y BTN_WEST
#define BTN_Z 0x135
#define BTN_TL 0x136
#define BTN_TR 0x137
#define KEY_ATTENDANT_TOGGLE 0x21d /* Attendant call on or off */
#define KEY_LIGHTS_TOGGLE 0x21e /* Reading light on or off */
+#define BTN_DPAD_UP 0x220
+#define BTN_DPAD_DOWN 0x221
+#define BTN_DPAD_LEFT 0x222
+#define BTN_DPAD_RIGHT 0x223
+
#define BTN_TRIGGER_HAPPY 0x2c0
#define BTN_TRIGGER_HAPPY1 0x2c0
#define BTN_TRIGGER_HAPPY2 0x2c1
projects / mirror_ubuntu-artful-kernel.git / commitdiff