This introduces the first sub-device modules by converting the KEYS and
RUMBLE sub-devices into wiimote modules. Both must be converted at once
because they depend on the built-in shared input device.
This mostly moves code from wiimote-core to wiimote-modules and doesn't
change any semantics or ABI.
Signed-off-by: David Herrmann <dh.herrmann@xxxxxxxxx>
---
drivers/hid/hid-wiimote-core.c | 134 ++++++--------------------------------
drivers/hid/hid-wiimote-modules.c | 134 ++++++++++++++++++++++++++++++++++++++
drivers/hid/hid-wiimote.h | 18 +++++
3 files changed, 172 insertions(+), 114 deletions(-)
diff --git a/drivers/hid/hid-wiimote-core.c b/drivers/hid/hid-wiimote-core.c
index 275428b..6ada226 100644
--- a/drivers/hid/hid-wiimote-core.c
+++ b/drivers/hid/hid-wiimote-core.c
@@ -22,35 +22,6 @@
#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 */
-};
-
static enum power_supply_property wiimote_battery_props[] = {
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_SCOPE,
@@ -166,7 +137,7 @@ static inline void wiiproto_keep_rumble(struct wiimote_data *wdata, __u8 *cmd1)
*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];
@@ -654,31 +625,6 @@ static void wiimote_leds_set(struct led_classdev *led_dev,
}
}
-static int wiimote_ff_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 wiimote_accel_open(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
@@ -725,12 +671,18 @@ static const __u8 * const wiimote_devtype_mods[WIIMOTE_DEV_NUM] = {
WIIMOD_NULL,
},
[WIIMOTE_DEV_GENERIC] = (const __u8[]){
+ WIIMOD_KEYS,
+ WIIMOD_RUMBLE,
WIIMOD_NULL,
},
[WIIMOTE_DEV_GEN10] = (const __u8[]){
+ WIIMOD_KEYS,
+ WIIMOD_RUMBLE,
WIIMOD_NULL,
},
[WIIMOTE_DEV_GEN20] = (const __u8[]){
+ WIIMOD_KEYS,
+ WIIMOD_RUMBLE,
WIIMOD_NULL,
},
};
@@ -933,29 +885,17 @@ static void wiimote_init_worker(struct work_struct *work)
static void handler_keys(struct wiimote_data *wdata, const __u8 *payload)
{
- 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);
+ const __u8 *iter, *mods;
+ const struct wiimod_ops *ops;
+
+ 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;
+ }
+ }
}
static void handler_accel(struct wiimote_data *wdata, const __u8 *payload)
@@ -1319,38 +1259,17 @@ err:
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->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;
+ goto err;
input_set_drvdata(wdata->accel, wdata);
wdata->accel->open = wiimote_accel_open;
@@ -1417,8 +1336,6 @@ static struct wiimote_data *wiimote_create(struct hid_device *hdev)
err_ir:
input_free_device(wdata->accel);
-err_input:
- input_free_device(wdata->input);
err:
kfree(wdata);
return NULL;
@@ -1430,13 +1347,12 @@ static void wiimote_destroy(struct wiimote_data *wdata)
wiiext_deinit(wdata);
wiimote_leds_destroy(wdata);
+ cancel_work_sync(&wdata->init_worker);
wiimote_modules_unload(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->init_worker);
cancel_work_sync(&wdata->queue.worker);
hid_hw_close(wdata->hdev);
hid_hw_stop(wdata->hdev);
@@ -1488,12 +1404,6 @@ static int wiimote_hid_probe(struct hid_device *hdev,
goto err_ir;
}
- ret = input_register_device(wdata->input);
- 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;
@@ -1545,9 +1455,6 @@ err_free:
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:
@@ -1560,7 +1467,6 @@ err_stop:
err:
input_free_device(wdata->ir);
input_free_device(wdata->accel);
- input_free_device(wdata->input);
kfree(wdata);
return ret;
}
diff --git a/drivers/hid/hid-wiimote-modules.c b/drivers/hid/hid-wiimote-modules.c
index 5dcdd23..616f240 100644
--- a/drivers/hid/hid-wiimote-modules.c
+++ b/drivers/hid/hid-wiimote-modules.c
@@ -39,7 +39,141 @@
#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,
+};
+
/* module table */
const struct wiimod_ops *wiimod_table[WIIMOD_NUM] = {
+ [WIIMOD_KEYS] = &wiimod_keys,
+ [WIIMOD_RUMBLE] = &wiimod_rumble,
};
diff --git a/drivers/hid/hid-wiimote.h b/drivers/hid/hid-wiimote.h
index 3c94e3c..93c48fb 100644
--- a/drivers/hid/hid-wiimote.h
+++ b/drivers/hid/hid-wiimote.h
@@ -45,6 +45,21 @@
/* 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,
@@ -111,6 +126,8 @@ struct wiimote_data {
/* wiimote modules */
enum wiimod_module {
+ WIIMOD_KEYS,
+ WIIMOD_RUMBLE,
WIIMOD_NUM,
WIIMOD_NULL = WIIMOD_NUM,
};
@@ -166,6 +183,7 @@ enum wiiproto_reqs {
dev))
extern void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm);
+extern void wiiproto_req_rumble(struct wiimote_data *wdata, __u8 rumble);
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,
--
1.8.2.2
--
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