Orange Pi5 kernel

Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Nintendo Wii / Wii U peripherals
* Copyright (c) 2011-2013 David Herrmann <dh.herrmann@gmail.com>
*/
/*
*/
#include <linux/completion.h>
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/spinlock.h>
#include "hid-ids.h"
#include "hid-wiimote.h"
/* output queue handling */
static int wiimote_hid_send(struct hid_device *hdev, __u8 *buffer,
<------><------><------> size_t count)
{
<------>__u8 *buf;
<------>int ret;
<------>if (!hdev->ll_driver->output_report)
<------><------>return -ENODEV;
<------>buf = kmemdup(buffer, count, GFP_KERNEL);
<------>if (!buf)
<------><------>return -ENOMEM;
<------>ret = hid_hw_output_report(hdev, buf, count);
<------>kfree(buf);
<------>return ret;
}
static void wiimote_queue_worker(struct work_struct *work)
{
<------>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->queue.lock, 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->queue.tail = (wdata->queue.tail + 1) % WIIMOTE_BUFSIZE;
<------>}
<------>spin_unlock_irqrestore(&wdata->queue.lock, flags);
}
static void wiimote_queue(struct wiimote_data *wdata, const __u8 *buffer,
<------><------><------><------><------><------><------><------>size_t count)
{
<------>unsigned long flags;
<------>__u8 newhead;
<------>if (count > HID_MAX_BUFFER_SIZE) {
<------><------>hid_warn(wdata->hdev, "Sending too large output report\n");
<------><------>spin_lock_irqsave(&wdata->queue.lock, flags);
<------><------>goto out_error;
<------>}
<------>/*
<------> * Copy new request into our output queue and check whether the
<------> * queue is full. If it is full, discard this request.
<------> * If it is empty we need to start a new worker that will
<------> * send out the buffer to the hid device.
<------> * If the queue is not empty, then there must be a worker
<------> * that is currently sending out our buffer and this worker
<------> * will reschedule itself until the queue is empty.
<------> */
<------>spin_lock_irqsave(&wdata->queue.lock, flags);
<------>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->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;
<------>}
<------>goto out_unlock;
out_error:
<------>wiimote_cmd_abort(wdata);
out_unlock:
<------>spin_unlock_irqrestore(&wdata->queue.lock, flags);
}
/*
* This sets the rumble bit on the given output report if rumble is
* currently enabled.
* \cmd1 must point to the second byte in the output report => &cmd[1]
* This must be called on nearly every output report before passing it
* into the output queue!
*/
static inline void wiiproto_keep_rumble(struct wiimote_data *wdata, __u8 *cmd1)
{
<------>if (wdata->state.flags & WIIPROTO_FLAG_RUMBLE)
<------><------>*cmd1 |= 0x01;
}
void wiiproto_req_rumble(struct wiimote_data *wdata, __u8 rumble)
{
<------>__u8 cmd[2];
<------>rumble = !!rumble;
<------>if (rumble == !!(wdata->state.flags & WIIPROTO_FLAG_RUMBLE))
<------><------>return;
<------>if (rumble)
<------><------>wdata->state.flags |= WIIPROTO_FLAG_RUMBLE;
<------>else
<------><------>wdata->state.flags &= ~WIIPROTO_FLAG_RUMBLE;
<------>cmd[0] = WIIPROTO_REQ_RUMBLE;
<------>cmd[1] = 0;
<------>wiiproto_keep_rumble(wdata, &cmd[1]);
<------>wiimote_queue(wdata, cmd, sizeof(cmd));
}
void wiiproto_req_leds(struct wiimote_data *wdata, int leds)
{
<------>__u8 cmd[2];
<------>leds &= WIIPROTO_FLAGS_LEDS;
<------>if ((wdata->state.flags & WIIPROTO_FLAGS_LEDS) == leds)
<------><------>return;
<------>wdata->state.flags = (wdata->state.flags & ~WIIPROTO_FLAGS_LEDS) | leds;
<------>cmd[0] = WIIPROTO_REQ_LED;
<------>cmd[1] = 0;
<------>if (leds & WIIPROTO_FLAG_LED1)
<------><------>cmd[1] |= 0x10;
<------>if (leds & WIIPROTO_FLAG_LED2)
<------><------>cmd[1] |= 0x20;
<------>if (leds & WIIPROTO_FLAG_LED3)
<------><------>cmd[1] |= 0x40;
<------>if (leds & WIIPROTO_FLAG_LED4)
<------><------>cmd[1] |= 0x80;
<------>wiiproto_keep_rumble(wdata, &cmd[1]);
<------>wiimote_queue(wdata, cmd, sizeof(cmd));
}
/*
* 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;
<------>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) {
<------><------><------>/* GEN10 and ealier devices bind IR formats to DRMs.
<------><------><------> * Hence, we cannot use DRM_KAI here as it might be
<------><------><------> * bound to IR_EXT. Use DRM_KAIE unconditionally so we
<------><------><------> * work with all devices and our parsers can use the
<------><------><------> * fixed formats, too. */
<------><------><------>return WIIPROTO_REQ_DRM_KAIE;
<------><------>} 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_SKAI1;
<------>} else {
<------><------>if (wdata->state.flags & WIIPROTO_FLAG_ACCEL) {
<------><------><------>if (ext)
<------><------><------><------>return WIIPROTO_REQ_DRM_KAE;
<------><------><------>else
<------><------><------><------>return WIIPROTO_REQ_DRM_KA;
<------><------>} else {
<------><------><------>if (ext)
<------><------><------><------>return WIIPROTO_REQ_DRM_KEE;
<------><------><------>else
<------><------><------><------>return WIIPROTO_REQ_DRM_K;
<------><------>}
<------>}
}
void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm)
{
<------>__u8 cmd[3];
<------>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;
<------>cmd[1] = 0;
<------>cmd[2] = drm;
<------>wdata->state.drm = drm;
<------>wiiproto_keep_rumble(wdata, &cmd[1]);
<------>wiimote_queue(wdata, cmd, sizeof(cmd));
}
void wiiproto_req_status(struct wiimote_data *wdata)
{
<------>__u8 cmd[2];
<------>cmd[0] = WIIPROTO_REQ_SREQ;
<------>cmd[1] = 0;
<------>wiiproto_keep_rumble(wdata, &cmd[1]);
<------>wiimote_queue(wdata, cmd, sizeof(cmd));
}
void wiiproto_req_accel(struct wiimote_data *wdata, __u8 accel)
{
<------>accel = !!accel;
<------>if (accel == !!(wdata->state.flags & WIIPROTO_FLAG_ACCEL))
<------><------>return;
<------>if (accel)
<------><------>wdata->state.flags |= WIIPROTO_FLAG_ACCEL;
<------>else
<------><------>wdata->state.flags &= ~WIIPROTO_FLAG_ACCEL;
<------>wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
}
void wiiproto_req_ir1(struct wiimote_data *wdata, __u8 flags)
{
<------>__u8 cmd[2];
<------>cmd[0] = WIIPROTO_REQ_IR1;
<------>cmd[1] = flags;
<------>wiiproto_keep_rumble(wdata, &cmd[1]);
<------>wiimote_queue(wdata, cmd, sizeof(cmd));
}
void wiiproto_req_ir2(struct wiimote_data *wdata, __u8 flags)
{
<------>__u8 cmd[2];
<------>cmd[0] = WIIPROTO_REQ_IR2;
<------>cmd[1] = flags;
<------>wiiproto_keep_rumble(wdata, &cmd[1]);
<------>wiimote_queue(wdata, cmd, sizeof(cmd));
}
#define wiiproto_req_wreg(wdata, os, buf, sz) \
<------><------><------>wiiproto_req_wmem((wdata), false, (os), (buf), (sz))
#define wiiproto_req_weeprom(wdata, os, buf, sz) \
<------><------><------>wiiproto_req_wmem((wdata), true, (os), (buf), (sz))
static void wiiproto_req_wmem(struct wiimote_data *wdata, bool eeprom,
<------><------><------><------>__u32 offset, const __u8 *buf, __u8 size)
{
<------>__u8 cmd[22];
<------>if (size > 16 || size == 0) {
<------><------>hid_warn(wdata->hdev, "Invalid length %d wmem request\n", size);
<------><------>return;
<------>}
<------>memset(cmd, 0, sizeof(cmd));
<------>cmd[0] = WIIPROTO_REQ_WMEM;
<------>cmd[2] = (offset >> 16) & 0xff;
<------>cmd[3] = (offset >> 8) & 0xff;
<------>cmd[4] = offset & 0xff;
<------>cmd[5] = size;
<------>memcpy(&cmd[6], buf, size);
<------>if (!eeprom)
<------><------>cmd[1] |= 0x04;
<------>wiiproto_keep_rumble(wdata, &cmd[1]);
<------>wiimote_queue(wdata, cmd, sizeof(cmd));
}
void wiiproto_req_rmem(struct wiimote_data *wdata, bool eeprom, __u32 offset,
<------><------><------><------><------><------><------><------>__u16 size)
{
<------>__u8 cmd[7];
<------>if (size == 0) {
<------><------>hid_warn(wdata->hdev, "Invalid length %d rmem request\n", size);
<------><------>return;
<------>}
<------>cmd[0] = WIIPROTO_REQ_RMEM;
<------>cmd[1] = 0;
<------>cmd[2] = (offset >> 16) & 0xff;
<------>cmd[3] = (offset >> 8) & 0xff;
<------>cmd[4] = offset & 0xff;
<------>cmd[5] = (size >> 8) & 0xff;
<------>cmd[6] = size & 0xff;
<------>if (!eeprom)
<------><------>cmd[1] |= 0x04;
<------>wiiproto_keep_rumble(wdata, &cmd[1]);
<------>wiimote_queue(wdata, cmd, sizeof(cmd));
}
/* requries the cmd-mutex to be held */
int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset,
<------><------><------><------><------><------>const __u8 *wmem, __u8 size)
{
<------>unsigned long flags;
<------>int ret;
<------>spin_lock_irqsave(&wdata->state.lock, flags);
<------>wiimote_cmd_set(wdata, WIIPROTO_REQ_WMEM, 0);
<------>wiiproto_req_wreg(wdata, offset, wmem, size);
<------>spin_unlock_irqrestore(&wdata->state.lock, flags);
<------>ret = wiimote_cmd_wait(wdata);
<------>if (!ret && wdata->state.cmd_err)
<------><------>ret = -EIO;
<------>return ret;
}
/* requries the cmd-mutex to be held */
ssize_t wiimote_cmd_read(struct wiimote_data *wdata, __u32 offset, __u8 *rmem,
<------><------><------><------><------><------><------><------>__u8 size)
{
<------>unsigned long flags;
<------>ssize_t ret;
<------>spin_lock_irqsave(&wdata->state.lock, flags);
<------>wdata->state.cmd_read_size = size;
<------>wdata->state.cmd_read_buf = rmem;
<------>wiimote_cmd_set(wdata, WIIPROTO_REQ_RMEM, offset & 0xffff);
<------>wiiproto_req_rreg(wdata, offset, size);
<------>spin_unlock_irqrestore(&wdata->state.lock, flags);
<------>ret = wiimote_cmd_wait(wdata);
<------>spin_lock_irqsave(&wdata->state.lock, flags);
<------>wdata->state.cmd_read_buf = NULL;
<------>spin_unlock_irqrestore(&wdata->state.lock, flags);
<------>if (!ret) {
<------><------>if (wdata->state.cmd_read_size == 0)
<------><------><------>ret = -EIO;
<------><------>else
<------><------><------>ret = wdata->state.cmd_read_size;
<------>}
<------>return ret;
}
/* requires the cmd-mutex to be held */
static int wiimote_cmd_init_ext(struct wiimote_data *wdata)
{
<------>__u8 wmem;
<------>int ret;
<------>/* initialize extension */
<------>wmem = 0x55;
<------>ret = wiimote_cmd_write(wdata, 0xa400f0, &wmem, sizeof(wmem));
<------>if (ret)
<------><------>return ret;
<------>/* disable default encryption */
<------>wmem = 0x0;
<------>ret = wiimote_cmd_write(wdata, 0xa400fb, &wmem, sizeof(wmem));
<------>if (ret)
<------><------>return ret;
<------>return 0;
}
/* 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: %6phC\n", rmem);
<------>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;
<------>if (rmem[0] == 0x01 && rmem[1] == 0x00 &&
<------> rmem[4] == 0x01 && rmem[5] == 0x03)
<------><------>return WIIMOTE_EXT_DRUMS;
<------>if (rmem[0] == 0x00 && rmem[1] == 0x00 &&
<------> rmem[4] == 0x01 && rmem[5] == 0x03)
<------><------>return WIIMOTE_EXT_GUITAR;
<------>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) {
<------>case WIIMOTE_EXT_CLASSIC_CONTROLLER:
<------>case WIIMOTE_EXT_DRUMS:
<------>case WIIMOTE_EXT_GUITAR:
<------><------>wmem = 0x07;
<------><------>break;
<------>case WIIMOTE_EXT_NUNCHUK:
<------><------>wmem = 0x05;
<------><------>break;
<------>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: %6phC\n", rmem);
<------>if (rmem[5] == 0x05)
<------><------>return true;
<------>hid_info(wdata->hdev, "unknown motion plus ID: %6phC\n", rmem);
<------>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: %6phC\n", rmem);
<------>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;
<------><------>}
<------>}
<------>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;
<------>}
<------>for (iter = mods; *iter != WIIMOD_NULL; ++iter) {
<------><------>ops = wiimod_table[*iter];
<------><------>if (!ops->probe)
<------><------><------>continue;
<------><------>ret = ops->probe(ops, wdata);
<------><------>if (ret)
<------><------><------>goto error;
<------>}
<------>if (wdata->input) {
<------><------>ret = input_register_device(wdata->input);
<------><------>if (ret)
<------><------><------>goto error;
<------>}
<------>spin_lock_irq(&wdata->state.lock);
<------>wdata->state.devtype = devtype;
<------>spin_unlock_irq(&wdata->state.lock);
<------>return;
error:
<------>for ( ; iter-- != mods; ) {
<------><------>ops = wiimod_table[*iter];
<------><------>if (ops->remove)
<------><------><------>ops->remove(ops, wdata);
<------>}
<------>if (wdata->input) {
<------><------>input_free_device(wdata->input);
<------><------>wdata->input = NULL;
<------>}
}
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];
<------>spin_lock_irqsave(&wdata->state.lock, flags);
<------>wdata->state.devtype = WIIMOTE_DEV_UNKNOWN;
<------>spin_unlock_irqrestore(&wdata->state.lock, flags);
<------>/* 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;
<------>}
}
/* 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] = {
<------>[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",
};
/* 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)
{
<------>__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;
<------>}
<------>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 void wiimote_init_detect(struct wiimote_data *wdata)
{
<------>__u8 exttype = WIIMOTE_EXT_NONE, extdata[6];
<------>bool ext;
<------>int ret;
<------>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)
<------><------>goto out_release;
<------>spin_lock_irq(&wdata->state.lock);
<------>ext = wdata->state.flags & WIIPROTO_FLAG_EXT_PLUGGED;
<------>spin_unlock_irq(&wdata->state.lock);
<------>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);
}
/*
* 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 && !(flags & WIIPROTO_FLAG_BUILTIN_MP) &&
<------> !(flags & WIIPROTO_FLAG_NO_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",
<------>[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",
<------>[WIIMOTE_EXT_DRUMS] = "Nintendo Wii Drums",
<------>[WIIMOTE_EXT_GUITAR] = "Nintendo Wii Guitar",
};
/*
* 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);
<------>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; %6phC\n",
<------><------><------><------> extdata);
<------><------>} 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 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)
{
<------>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(struct timer_list *t)
{
<------>struct wiimote_data *wdata = from_timer(wdata, t, timer);
<------>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;
<------>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];
<------><------>if (ops->in_keys) {
<------><------><------>ops->in_keys(wdata, payload);
<------><------><------>break;
<------><------>}
<------>}
}
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];
<------><------>if (ops->in_accel) {
<------><------><------>ops->in_accel(wdata, payload);
<------><------><------>break;
<------><------>}
<------>}
}
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)
{
<------>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;
<------>/* 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)
#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 */
static void handler_status_K(struct wiimote_data *wdata,
<------><------><------> const __u8 *payload)
{
<------>handler_keys(wdata, payload);
<------>/* on status reports the drm is reset so we need to resend the drm */
<------>wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
}
/* extended status report with "BB BB LF 00 00 VV" data */
static void handler_status(struct wiimote_data *wdata, const __u8 *payload)
{
<------>handler_status_K(wdata, payload);
<------>/* 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);
<------><------>}
<------>}
<------>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_generic_K(struct wiimote_data *wdata, const __u8 *payload)
{
<------>handler_keys(wdata, payload);
}
static void handler_data(struct wiimote_data *wdata, const __u8 *payload)
{
<------>__u16 offset = payload[3] << 8 | payload[4];
<------>__u8 size = (payload[2] >> 4) + 1;
<------>__u8 err = payload[2] & 0x0f;
<------>handler_keys(wdata, payload);
<------>if (wiimote_cmd_pending(wdata, WIIPROTO_REQ_RMEM, offset)) {
<------><------>if (err)
<------><------><------>size = 0;
<------><------>else if (size > wdata->state.cmd_read_size)
<------><------><------>size = wdata->state.cmd_read_size;
<------><------>wdata->state.cmd_read_size = size;
<------><------>if (wdata->state.cmd_read_buf)
<------><------><------>memcpy(wdata->state.cmd_read_buf, &payload[5], size);
<------><------>wiimote_cmd_complete(wdata);
<------>}
}
static void handler_return(struct wiimote_data *wdata, const __u8 *payload)
{
<------>__u8 err = payload[3];
<------>__u8 cmd = payload[2];
<------>handler_keys(wdata, payload);
<------>if (wiimote_cmd_pending(wdata, cmd, 0)) {
<------><------>wdata->state.cmd_err = err;
<------><------>wiimote_cmd_complete(wdata);
<------>} else if (err) {
<------><------>hid_warn(wdata->hdev, "Remote error %hhu on req %hhu\n", err,
<------><------><------><------><------><------><------><------><------>cmd);
<------>}
}
static void handler_drm_KA(struct wiimote_data *wdata, const __u8 *payload)
{
<------>handler_keys(wdata, payload);
<------>handler_accel(wdata, payload);
}
static void handler_drm_KE(struct wiimote_data *wdata, const __u8 *payload)
{
<------>handler_keys(wdata, payload);
<------>handler_ext(wdata, &payload[2], 8);
}
static void handler_drm_KAI(struct wiimote_data *wdata, const __u8 *payload)
{
<------>handler_keys(wdata, payload);
<------>handler_accel(wdata, payload);
<------>ir_to_input0(wdata, &payload[5], false);
<------>ir_to_input1(wdata, &payload[8], false);
<------>ir_to_input2(wdata, &payload[11], false);
<------>ir_to_input3(wdata, &payload[14], false);
}
static void handler_drm_KEE(struct wiimote_data *wdata, const __u8 *payload)
{
<------>handler_keys(wdata, payload);
<------>handler_ext(wdata, &payload[2], 19);
}
static void handler_drm_KIE(struct wiimote_data *wdata, const __u8 *payload)
{
<------>handler_keys(wdata, payload);
<------>ir_to_input0(wdata, &payload[2], false);
<------>ir_to_input1(wdata, &payload[4], true);
<------>ir_to_input2(wdata, &payload[7], false);
<------>ir_to_input3(wdata, &payload[9], true);
<------>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);
<------>handler_ext(wdata, &payload[5], 16);
}
static void handler_drm_KAIE(struct wiimote_data *wdata, const __u8 *payload)
{
<------>handler_keys(wdata, payload);
<------>handler_accel(wdata, payload);
<------>ir_to_input0(wdata, &payload[5], false);
<------>ir_to_input1(wdata, &payload[7], true);
<------>ir_to_input2(wdata, &payload[10], false);
<------>ir_to_input3(wdata, &payload[12], true);
<------>handler_ext(wdata, &payload[15], 6);
}
static void handler_drm_E(struct wiimote_data *wdata, const __u8 *payload)
{
<------>handler_ext(wdata, payload, 21);
}
static void handler_drm_SKAI1(struct wiimote_data *wdata, const __u8 *payload)
{
<------>handler_keys(wdata, payload);
<------>wdata->state.accel_split[0] = payload[2];
<------>wdata->state.accel_split[1] = (payload[0] >> 1) & (0x10 | 0x20);
<------>wdata->state.accel_split[1] |= (payload[1] << 1) & (0x40 | 0x80);
<------>ir_to_input0(wdata, &payload[3], false);
<------>ir_to_input1(wdata, &payload[12], false);
}
static void handler_drm_SKAI2(struct wiimote_data *wdata, const __u8 *payload)
{
<------>__u8 buf[5];
<------>handler_keys(wdata, payload);
<------>wdata->state.accel_split[1] |= (payload[0] >> 5) & (0x01 | 0x02);
<------>wdata->state.accel_split[1] |= (payload[1] >> 3) & (0x04 | 0x08);
<------>buf[0] = 0;
<------>buf[1] = 0;
<------>buf[2] = wdata->state.accel_split[0];
<------>buf[3] = payload[2];
<------>buf[4] = wdata->state.accel_split[1];
<------>handler_accel(wdata, buf);
<------>ir_to_input2(wdata, &payload[3], false);
<------>ir_to_input3(wdata, &payload[12], false);
}
struct wiiproto_handler {
<------>__u8 id;
<------>size_t size;
<------>void (*func)(struct wiimote_data *wdata, const __u8 *payload);
};
static const struct wiiproto_handler handlers[] = {
<------>{ .id = WIIPROTO_REQ_STATUS, .size = 6, .func = handler_status },
<------>{ .id = WIIPROTO_REQ_STATUS, .size = 2, .func = handler_status_K },
<------>{ .id = WIIPROTO_REQ_DATA, .size = 21, .func = handler_data },
<------>{ .id = WIIPROTO_REQ_DATA, .size = 2, .func = handler_generic_K },
<------>{ .id = WIIPROTO_REQ_RETURN, .size = 4, .func = handler_return },
<------>{ .id = WIIPROTO_REQ_RETURN, .size = 2, .func = handler_generic_K },
<------>{ .id = WIIPROTO_REQ_DRM_K, .size = 2, .func = handler_keys },
<------>{ .id = WIIPROTO_REQ_DRM_KA, .size = 5, .func = handler_drm_KA },
<------>{ .id = WIIPROTO_REQ_DRM_KA, .size = 2, .func = handler_generic_K },
<------>{ .id = WIIPROTO_REQ_DRM_KE, .size = 10, .func = handler_drm_KE },
<------>{ .id = WIIPROTO_REQ_DRM_KE, .size = 2, .func = handler_generic_K },
<------>{ .id = WIIPROTO_REQ_DRM_KAI, .size = 17, .func = handler_drm_KAI },
<------>{ .id = WIIPROTO_REQ_DRM_KAI, .size = 2, .func = handler_generic_K },
<------>{ .id = WIIPROTO_REQ_DRM_KEE, .size = 21, .func = handler_drm_KEE },
<------>{ .id = WIIPROTO_REQ_DRM_KEE, .size = 2, .func = handler_generic_K },
<------>{ .id = WIIPROTO_REQ_DRM_KAE, .size = 21, .func = handler_drm_KAE },
<------>{ .id = WIIPROTO_REQ_DRM_KAE, .size = 2, .func = handler_generic_K },
<------>{ .id = WIIPROTO_REQ_DRM_KIE, .size = 21, .func = handler_drm_KIE },
<------>{ .id = WIIPROTO_REQ_DRM_KIE, .size = 2, .func = handler_generic_K },
<------>{ .id = WIIPROTO_REQ_DRM_KAIE, .size = 21, .func = handler_drm_KAIE },
<------>{ .id = WIIPROTO_REQ_DRM_KAIE, .size = 2, .func = handler_generic_K },
<------>{ .id = WIIPROTO_REQ_DRM_E, .size = 21, .func = handler_drm_E },
<------>{ .id = WIIPROTO_REQ_DRM_SKAI1, .size = 21, .func = handler_drm_SKAI1 },
<------>{ .id = WIIPROTO_REQ_DRM_SKAI2, .size = 21, .func = handler_drm_SKAI2 },
<------>{ .id = 0 }
};
static int wiimote_hid_event(struct hid_device *hdev, struct hid_report *report,
<------><------><------><------><------><------><------>u8 *raw_data, int size)
{
<------>struct wiimote_data *wdata = hid_get_drvdata(hdev);
<------>const struct wiiproto_handler *h;
<------>int i;
<------>unsigned long flags;
<------>if (size < 1)
<------><------>return -EINVAL;
<------>for (i = 0; handlers[i].id; ++i) {
<------><------>h = &handlers[i];
<------><------>if (h->id == raw_data[0] && h->size < size) {
<------><------><------>spin_lock_irqsave(&wdata->state.lock, flags);
<------><------><------>h->func(wdata, &raw_data[1]);
<------><------><------>spin_unlock_irqrestore(&wdata->state.lock, flags);
<------><------><------>break;
<------><------>}
<------>}
<------>if (!handlers[i].id)
<------><------>hid_warn(hdev, "Unhandled report %hhu size %d\n", raw_data[0],
<------><------><------><------><------><------><------><------><------>size);
<------>return 0;
}
static ssize_t wiimote_ext_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.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_DRUMS:
<------><------>return sprintf(buf, "drums\n");
<------>case WIIMOTE_EXT_GUITAR:
<------><------>return sprintf(buf, "guitar\n");
<------>case WIIMOTE_EXT_UNKNOWN:
<------>default:
<------><------>return sprintf(buf, "unknown\n");
<------>}
}
static ssize_t wiimote_ext_store(struct device *dev,
<------><------><------><------> struct device_attribute *attr,
<------><------><------><------> const char *buf, size_t count)
{
<------>struct wiimote_data *wdata = dev_to_wii(dev);
<------>if (!strcmp(buf, "scan")) {
<------><------>wiimote_schedule(wdata);
<------>} else {
<------><------>return -EINVAL;
<------>}
<------>return strnlen(buf, PAGE_SIZE);
}
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:
<------>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;
<------>wdata = kzalloc(sizeof(*wdata), GFP_KERNEL);
<------>if (!wdata)
<------><------>return NULL;
<------>wdata->hdev = hdev;
<------>hid_set_drvdata(hdev, wdata);
<------>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;
<------>INIT_WORK(&wdata->init_worker, wiimote_init_worker);
<------>timer_setup(&wdata->timer, wiimote_init_timeout, 0);
<------>return wdata;
}
static void wiimote_destroy(struct wiimote_data *wdata)
{
<------>unsigned long flags;
<------>wiidebug_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);
<------>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);
}
static int wiimote_hid_probe(struct hid_device *hdev,
<------><------><------><------>const struct hid_device_id *id)
{
<------>struct wiimote_data *wdata;
<------>int ret;
<------>hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
<------>wdata = wiimote_create(hdev);
<------>if (!wdata) {
<------><------>hid_err(hdev, "Can't alloc device\n");
<------><------>return -ENOMEM;
<------>}
<------>ret = hid_parse(hdev);
<------>if (ret) {
<------><------>hid_err(hdev, "HID parse failed\n");
<------><------>goto err;
<------>}
<------>ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
<------>if (ret) {
<------><------>hid_err(hdev, "HW start failed\n");
<------><------>goto err;
<------>}
<------>ret = hid_hw_open(hdev);
<------>if (ret) {
<------><------>hid_err(hdev, "cannot start hardware I/O\n");
<------><------>goto err_stop;
<------>}
<------>ret = device_create_file(&hdev->dev, &dev_attr_extension);
<------>if (ret) {
<------><------>hid_err(hdev, "cannot create sysfs attribute\n");
<------><------>goto err_close;
<------>}
<------>ret = device_create_file(&hdev->dev, &dev_attr_devtype);
<------>if (ret) {
<------><------>hid_err(hdev, "cannot create sysfs attribute\n");
<------><------>goto err_ext;
<------>}
<------>ret = wiidebug_init(wdata);
<------>if (ret)
<------><------>goto err_free;
<------>hid_info(hdev, "New device registered\n");
<------>/* schedule device detection */
<------>wiimote_schedule(wdata);
<------>return 0;
err_free:
<------>wiimote_destroy(wdata);
<------>return ret;
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);
<------>kfree(wdata);
<------>return ret;
}
static void wiimote_hid_remove(struct hid_device *hdev)
{
<------>struct wiimote_data *wdata = hid_get_drvdata(hdev);
<------>hid_info(hdev, "Device removed\n");
<------>wiimote_destroy(wdata);
}
static const struct hid_device_id wiimote_hid_devices[] = {
<------>{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
<------><------><------><------>USB_DEVICE_ID_NINTENDO_WIIMOTE) },
<------>{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
<------><------><------><------>USB_DEVICE_ID_NINTENDO_WIIMOTE2) },
<------>{ }
};
bool wiimote_dpad_as_analog = false;
module_param_named(dpad_as_analog, wiimote_dpad_as_analog, bool, 0644);
MODULE_PARM_DESC(dpad_as_analog, "Use D-Pad as main analog input");
MODULE_DEVICE_TABLE(hid, wiimote_hid_devices);
static struct hid_driver wiimote_hid_driver = {
<------>.name = "wiimote",
<------>.id_table = wiimote_hid_devices,
<------>.probe = wiimote_hid_probe,
<------>.remove = wiimote_hid_remove,
<------>.raw_event = wiimote_hid_event,
};
module_hid_driver(wiimote_hid_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("David Herrmann <dh.herrmann@gmail.com>");
MODULE_DESCRIPTION("Driver for Nintendo Wii / Wii U peripherals");