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-rw-r--r--drivers/hid/hid-wiimote-core.c669
-rw-r--r--drivers/hid/hid-wiimote-modules.c16
-rw-r--r--drivers/hid/hid-wiimote.h49
3 files changed, 709 insertions, 25 deletions
diff --git a/drivers/hid/hid-wiimote-core.c b/drivers/hid/hid-wiimote-core.c
index 1ea70c8..836611e 100644
--- a/drivers/hid/hid-wiimote-core.c
+++ b/drivers/hid/hid-wiimote-core.c
@@ -179,17 +179,38 @@ void wiiproto_req_leds(struct wiimote_data *wdata, int leds)
* 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;
+
+ ext = (wdata->state.flags & WIIPROTO_FLAG_EXT_USED) ||
+ (wdata->state.flags & WIIPROTO_FLAG_MP_USED);
if (ir == WIIPROTO_FLAG_IR_BASIC) {
- if (wdata->state.flags & WIIPROTO_FLAG_ACCEL)
- return WIIPROTO_REQ_DRM_KAIE;
- else
+ 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) {
@@ -202,7 +223,7 @@ static __u8 select_drm(struct wiimote_data *wdata)
return WIIPROTO_REQ_DRM_KA;
} else {
if (ext)
- return WIIPROTO_REQ_DRM_KE;
+ return WIIPROTO_REQ_DRM_KEE;
else
return WIIPROTO_REQ_DRM_K;
}
@@ -399,9 +420,8 @@ static int wiimote_cmd_init_ext(struct wiimote_data *wdata)
}
/* requires the cmd-mutex to be held */
-static __u8 wiimote_cmd_read_ext(struct wiimote_data *wdata)
+static __u8 wiimote_cmd_read_ext(struct wiimote_data *wdata, __u8 *rmem)
{
- __u8 rmem[6];
int ret;
/* read extension ID */
@@ -409,6 +429,9 @@ static __u8 wiimote_cmd_read_ext(struct wiimote_data *wdata)
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;
@@ -416,6 +439,92 @@ static __u8 wiimote_cmd_read_ext(struct wiimote_data *wdata)
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;
+
+ /* 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) {
+ default:
+ wmem = 0x04;
+ break;
+ }
+
+ return wiimote_cmd_write(wdata, 0xa600fe, &wmem, sizeof(wmem));
+}
+
+/* requires the cmd-mutex to be held */
+static bool wiimote_cmd_read_mp(struct wiimote_data *wdata, __u8 *rmem)
+{
+ int ret;
+
+ /* read motion plus ID */
+ ret = wiimote_cmd_read(wdata, 0xa600fa, rmem, 6);
+ if (ret != 6)
+ return false;
+
+ 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 (rmem[5] == 0x05)
+ return true;
+
+ 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]);
+
+ return false;
+}
+
+/* requires the cmd-mutex to be held */
+static __u8 wiimote_cmd_read_mp_mapped(struct wiimote_data *wdata)
+{
+ int ret;
+ __u8 rmem[6];
+
+ /* 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] = {
@@ -561,6 +670,81 @@ static void wiimote_modules_unload(struct wiimote_data *wdata)
}
}
+/* device extension handling */
+
+static void wiimote_ext_load(struct wiimote_data *wdata, unsigned int ext)
+{
+ unsigned long flags;
+ const struct wiimod_ops *ops;
+ int ret;
+
+ ops = wiimod_ext_table[ext];
+
+ if (ops->probe) {
+ ret = ops->probe(ops, wdata);
+ if (ret)
+ ext = WIIMOTE_EXT_UNKNOWN;
+ }
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wdata->state.exttype = ext;
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+}
+
+static void wiimote_ext_unload(struct wiimote_data *wdata)
+{
+ unsigned long flags;
+ const struct wiimod_ops *ops;
+
+ ops = wiimod_ext_table[wdata->state.exttype];
+
+ 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 void wiimote_mp_unload(struct wiimote_data *wdata)
+{
+ unsigned long flags;
+ const struct wiimod_ops *ops;
+
+ if (wdata->state.mp < 2)
+ return;
+
+ ops = &wiimod_mp;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ wdata->state.mp = 0;
+ wdata->state.flags &= ~WIIPROTO_FLAG_MP_USED;
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+ if (ops->remove)
+ ops->remove(ops, wdata);
+}
+
/* device (re-)initialization and detection */
static const char *wiimote_devtype_names[WIIMOTE_DEV_NUM] = {
@@ -617,7 +801,7 @@ done:
static void wiimote_init_detect(struct wiimote_data *wdata)
{
- __u8 exttype = WIIMOTE_EXT_NONE;
+ __u8 exttype = WIIMOTE_EXT_NONE, extdata[6];
bool ext;
int ret;
@@ -641,11 +825,301 @@ static void wiimote_init_detect(struct wiimote_data *wdata)
goto out_release;
wiimote_cmd_init_ext(wdata);
- exttype = wiimote_cmd_read_ext(wdata);
+ exttype = wiimote_cmd_read_ext(wdata, extdata);
out_release:
wiimote_cmd_release(wdata);
wiimote_init_set_type(wdata, exttype);
+ /* schedule MP timer */
+ mod_timer(&wdata->timer, jiffies + HZ * 4);
+}
+
+/*
+ * 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)
+{
+ bool mp;
+ __u8 mpdata[6];
+
+ wiimote_cmd_acquire_noint(wdata);
+ wiimote_cmd_init_mp(wdata);
+ mp = wiimote_cmd_read_mp(wdata, mpdata);
+ wiimote_cmd_release(wdata);
+
+ /* 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);
+}
+
+/*
+ * 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)
+{
+ __u32 flags;
+ __u8 type, data[6];
+ bool ret, poll_mp;
+
+ spin_lock_irq(&wdata->state.lock);
+ flags = wdata->state.flags;
+ spin_unlock_irq(&wdata->state.lock);
+
+ 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;
+ }
+
+ /* 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)
+ wiimote_init_poll_mp(wdata);
+
+ return ret;
+}
+
+static const char *wiimote_exttype_names[WIIMOTE_EXT_NUM] = {
+ [WIIMOTE_EXT_NONE] = "None",
+ [WIIMOTE_EXT_UNKNOWN] = "Unknown",
+};
+
+/*
+ * 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)
+{
+ __u8 exttype, extdata[6], mpdata[6];
+ __u32 flags;
+ bool mp;
+
+ 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);
+ 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 */
+ 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 wiimote_init_worker(struct work_struct *work)
@@ -655,6 +1129,30 @@ static void wiimote_init_worker(struct work_struct *work)
if (wdata->state.devtype == WIIMOTE_DEV_PENDING)
wiimote_init_detect(wdata);
+ if (!wiimote_init_check(wdata))
+ wiimote_init_hotplug(wdata);
+}
+
+void __wiimote_schedule(struct wiimote_data *wdata)
+{
+ if (!(wdata->state.flags & WIIPROTO_FLAG_EXITING))
+ schedule_work(&wdata->init_worker);
+}
+
+static void wiimote_schedule(struct wiimote_data *wdata)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&wdata->state.lock, flags);
+ __wiimote_schedule(wdata);
+ spin_unlock_irqrestore(&wdata->state.lock, flags);
+}
+
+static void wiimote_init_timeout(unsigned long arg)
+{
+ struct wiimote_data *wdata = (void*)arg;
+
+ wiimote_schedule(wdata);
}
/* protocol handlers */
@@ -664,6 +1162,12 @@ static void handler_keys(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_keys) {
+ ops->in_keys(wdata, payload);
+ return;
+ }
+
mods = wiimote_devtype_mods[wdata->state.devtype];
for (iter = mods; *iter != WIIMOD_NULL; ++iter) {
ops = wiimod_table[*iter];
@@ -679,6 +1183,12 @@ 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;
+ }
+
mods = wiimote_devtype_mods[wdata->state.devtype];
for (iter = mods; *iter != WIIMOD_NULL; ++iter) {
ops = wiimod_table[*iter];
@@ -689,6 +1199,93 @@ static void handler_accel(struct wiimote_data *wdata, const __u8 *payload)
}
}
+static bool valid_ext_handler(const struct wiimod_ops *ops, size_t len)
+{
+ 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;
+}
+
+static void handler_ext(struct wiimote_data *wdata, const __u8 *payload,
+ size_t len)
+{
+ const __u8 *iter, *mods;
+ const struct wiimod_ops *ops;
+ bool is_mp;
+
+ if (len < 6)
+ return;
+
+ /* 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);
+ }
+ }
+
+ /* detect MP data that is sent interleaved with EXT data */
+ is_mp = payload[5] & 0x02;
+ } else {
+ 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;
+ }
+
+ /* 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)
@@ -700,6 +1297,12 @@ static void handler_ir(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_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];
@@ -727,11 +1330,20 @@ static void handler_status(struct wiimote_data *wdata, const __u8 *payload)
/* update extension status */
if (payload[2] & 0x02) {
- wdata->state.flags |= WIIPROTO_FLAG_EXT_PLUGGED;
- wiiext_event(wdata, true);
+ 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 {
- wdata->state.flags &= ~WIIPROTO_FLAG_EXT_PLUGGED;
- wiiext_event(wdata, false);
+ 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);
+ }
}
wdata->state.cmd_battery = payload[5];
@@ -791,7 +1403,7 @@ static void handler_drm_KA(struct wiimote_data *wdata, const __u8 *payload)
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)
@@ -807,7 +1419,7 @@ static void handler_drm_KAI(struct wiimote_data *wdata, const __u8 *payload)
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)
@@ -817,14 +1429,14 @@ 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);
- 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)
@@ -835,12 +1447,12 @@ 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);
- 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)
@@ -960,16 +1572,27 @@ static struct wiimote_data *wiimote_create(struct hid_device *hdev)
wdata->state.cmd_battery = 0xff;
INIT_WORK(&wdata->init_worker, wiimote_init_worker);
+ setup_timer(&wdata->timer, wiimote_init_timeout, (long)wdata);
return wdata;
}
static void wiimote_destroy(struct wiimote_data *wdata)
{
+ unsigned long flags;
+
wiidebug_deinit(wdata);
- wiiext_deinit(wdata);
+
+ /* 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);
+
+ wiimote_mp_unload(wdata);
+ wiimote_ext_unload(wdata);
wiimote_modules_unload(wdata);
cancel_work_sync(&wdata->queue.worker);
hid_hw_close(wdata->hdev);
@@ -1010,10 +1633,6 @@ static int wiimote_hid_probe(struct hid_device *hdev,
goto err_stop;
}
- ret = wiiext_init(wdata);
- if (ret)
- goto err_free;
-
ret = wiidebug_init(wdata);
if (ret)
goto err_free;
@@ -1021,7 +1640,7 @@ static int wiimote_hid_probe(struct hid_device *hdev,
hid_info(hdev, "New device registered\n");
/* schedule device detection */
- schedule_work(&wdata->init_worker);
+ wiimote_schedule(wdata);
return 0;
diff --git a/drivers/hid/hid-wiimote-modules.c b/drivers/hid/hid-wiimote-modules.c
index 5cc593a..d3eef77 100644
--- a/drivers/hid/hid-wiimote-modules.c
+++ b/drivers/hid/hid-wiimote-modules.c
@@ -788,8 +788,19 @@ static const struct wiimod_ops wiimod_ir = {
.in_ir = wiimod_ir_in_ir,
};
+/*
+ * Motion Plus
+ */
+
+const struct wiimod_ops wiimod_mp = {
+ .flags = 0,
+ .arg = 0,
+};
+
/* 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,
@@ -801,3 +812,8 @@ const struct wiimod_ops *wiimod_table[WIIMOD_NUM] = {
[WIIMOD_ACCEL] = &wiimod_accel,
[WIIMOD_IR] = &wiimod_ir,
};
+
+const struct wiimod_ops *wiimod_ext_table[WIIMOTE_EXT_NUM] = {
+ [WIIMOTE_EXT_NONE] = &wiimod_dummy,
+ [WIIMOTE_EXT_UNKNOWN] = &wiimod_dummy,
+};
diff --git a/drivers/hid/hid-wiimote.h b/drivers/hid/hid-wiimote.h
index 3a2d3a1..0afc9f9 100644
--- a/drivers/hid/hid-wiimote.h
+++ b/drivers/hid/hid-wiimote.h
@@ -22,6 +22,7 @@
#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
@@ -36,6 +37,12 @@
#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_FLAGS_LEDS (WIIPROTO_FLAG_LED1 | WIIPROTO_FLAG_LED2 | \
WIIPROTO_FLAG_LED3 | WIIPROTO_FLAG_LED4)
@@ -75,6 +82,14 @@ enum wiimote_exttype {
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;
@@ -94,6 +109,8 @@ struct wiimote_state {
__u8 accel_split[2];
__u8 drm;
__u8 devtype;
+ __u8 exttype;
+ __u8 mp;
/* synchronous cmd requests */
struct mutex sync;
@@ -115,6 +132,7 @@ struct wiimote_data {
struct input_dev *accel;
struct input_dev *ir;
struct power_supply battery;
+ struct timer_list timer;
struct wiimote_ext *ext;
struct wiimote_debug *debug;
@@ -140,6 +158,8 @@ enum wiimod_module {
};
#define WIIMOD_FLAG_INPUT 0x0001
+#define WIIMOD_FLAG_EXT8 0x0002
+#define WIIMOD_FLAG_EXT16 0x0004
struct wiimod_ops {
__u16 flags;
@@ -153,9 +173,13 @@ struct wiimod_ops {
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 */
@@ -172,23 +196,48 @@ enum wiiproto_reqs {
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);
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