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path: root/drivers/input/mouse/bcm5974.c
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Diffstat (limited to 'drivers/input/mouse/bcm5974.c')
-rw-r--r--drivers/input/mouse/bcm5974.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/input/mouse/bcm5974.c b/drivers/input/mouse/bcm5974.c
index 18f4d7f6ce6d..2998a6ac9ae4 100644
--- a/drivers/input/mouse/bcm5974.c
+++ b/drivers/input/mouse/bcm5974.c
@@ -351,8 +351,9 @@ static int report_tp_state(struct bcm5974 *dev, int size)
351#define BCM5974_WELLSPRING_MODE_REQUEST_VALUE 0x300 351#define BCM5974_WELLSPRING_MODE_REQUEST_VALUE 0x300
352#define BCM5974_WELLSPRING_MODE_REQUEST_INDEX 0 352#define BCM5974_WELLSPRING_MODE_REQUEST_INDEX 0
353#define BCM5974_WELLSPRING_MODE_VENDOR_VALUE 0x01 353#define BCM5974_WELLSPRING_MODE_VENDOR_VALUE 0x01
354#define BCM5974_WELLSPRING_MODE_NORMAL_VALUE 0x08
354 355
355static int bcm5974_wellspring_mode(struct bcm5974 *dev) 356static int bcm5974_wellspring_mode(struct bcm5974 *dev, bool on)
356{ 357{
357 char *data = kmalloc(8, GFP_KERNEL); 358 char *data = kmalloc(8, GFP_KERNEL);
358 int retval = 0, size; 359 int retval = 0, size;
@@ -377,7 +378,9 @@ static int bcm5974_wellspring_mode(struct bcm5974 *dev)
377 } 378 }
378 379
379 /* apply the mode switch */ 380 /* apply the mode switch */
380 data[0] = BCM5974_WELLSPRING_MODE_VENDOR_VALUE; 381 data[0] = on ?
382 BCM5974_WELLSPRING_MODE_VENDOR_VALUE :
383 BCM5974_WELLSPRING_MODE_NORMAL_VALUE;
381 384
382 /* write configuration */ 385 /* write configuration */
383 size = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), 386 size = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
@@ -392,7 +395,8 @@ static int bcm5974_wellspring_mode(struct bcm5974 *dev)
392 goto out; 395 goto out;
393 } 396 }
394 397
395 dprintk(2, "bcm5974: switched to wellspring mode.\n"); 398 dprintk(2, "bcm5974: switched to %s mode.\n",
399 on ? "wellspring" : "normal");
396 400
397 out: 401 out:
398 kfree(data); 402 kfree(data);
@@ -481,7 +485,7 @@ exit:
481 */ 485 */
482static int bcm5974_start_traffic(struct bcm5974 *dev) 486static int bcm5974_start_traffic(struct bcm5974 *dev)
483{ 487{
484 if (bcm5974_wellspring_mode(dev)) { 488 if (bcm5974_wellspring_mode(dev, true)) {
485 dprintk(1, "bcm5974: mode switch failed\n"); 489 dprintk(1, "bcm5974: mode switch failed\n");
486 goto error; 490 goto error;
487 } 491 }
@@ -504,6 +508,7 @@ static void bcm5974_pause_traffic(struct bcm5974 *dev)
504{ 508{
505 usb_kill_urb(dev->tp_urb); 509 usb_kill_urb(dev->tp_urb);
506 usb_kill_urb(dev->bt_urb); 510 usb_kill_urb(dev->bt_urb);
511 bcm5974_wellspring_mode(dev, false);
507} 512}
508 513
509/* 514/*