diff options
| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-08-10 13:54:02 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2019-06-22 23:55:49 -0700 |
| commit | 21ae38f8558511450a33fb3873bfcd6b8f1e0922 (patch) | |
| tree | 3dc8e02fccde3ae8ce3a5088abec7d3bb15f4f00 /drivers/input | |
| parent | 8624dfd10a3bb3ea3d8a959e17f8951f1b03d68d (diff) | |
| download | lwn-21ae38f8558511450a33fb3873bfcd6b8f1e0922.tar.gz lwn-21ae38f8558511450a33fb3873bfcd6b8f1e0922.zip | |
Input: iforce - use unaligned accessors, where appropriate
Instead of open-coding conversion from/to little-endian, let's
use proper accessors.
Tested-by: Tim Schumacher <timschumi@gmx.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/joystick/iforce/iforce-main.c | 7 | ||||
| -rw-r--r-- | drivers/input/joystick/iforce/iforce-packets.c | 12 |
2 files changed, 12 insertions, 7 deletions
diff --git a/drivers/input/joystick/iforce/iforce-main.c b/drivers/input/joystick/iforce/iforce-main.c index 5cb3e80f4e0d..d696b0b653b6 100644 --- a/drivers/input/joystick/iforce/iforce-main.c +++ b/drivers/input/joystick/iforce/iforce-main.c @@ -21,6 +21,7 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +#include <asm/unaligned.h> #include "iforce.h" MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>, Johann Deneux <johann.deneux@gmail.com>"); @@ -286,17 +287,17 @@ int iforce_init_device(struct device *parent, u16 bustype, */ if (!iforce_get_id_packet(iforce, 'M', buf, &len) || len < 3) - input_dev->id.vendor = (buf[2] << 8) | buf[1]; + input_dev->id.vendor = get_unaligned_le16(buf + 1); else dev_warn(&iforce->dev->dev, "Device does not respond to id packet M\n"); if (!iforce_get_id_packet(iforce, 'P', buf, &len) || len < 3) - input_dev->id.product = (buf[2] << 8) | buf[1]; + input_dev->id.product = get_unaligned_le16(buf + 1); else dev_warn(&iforce->dev->dev, "Device does not respond to id packet P\n"); if (!iforce_get_id_packet(iforce, 'B', buf, &len) || len < 3) - iforce->device_memory.end = (buf[2] << 8) | buf[1]; + iforce->device_memory.end = get_unaligned_le16(buf + 1); else dev_warn(&iforce->dev->dev, "Device does not respond to id packet B\n"); diff --git a/drivers/input/joystick/iforce/iforce-packets.c b/drivers/input/joystick/iforce/iforce-packets.c index 976ec1c7cf15..76c4475740ab 100644 --- a/drivers/input/joystick/iforce/iforce-packets.c +++ b/drivers/input/joystick/iforce/iforce-packets.c @@ -21,6 +21,7 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +#include <asm/unaligned.h> #include "iforce.h" static struct { @@ -175,8 +176,10 @@ void iforce_process_packet(struct iforce *iforce, switch (packet_id) { case 0x01: /* joystick position data */ - input_report_abs(dev, ABS_X, (__s16) (((__s16)data[1] << 8) | data[0])); - input_report_abs(dev, ABS_Y, (__s16) (((__s16)data[3] << 8) | data[2])); + input_report_abs(dev, ABS_X, + (__s16) get_unaligned_le16(data)); + input_report_abs(dev, ABS_Y, + (__s16) get_unaligned_le16(data + 2)); input_report_abs(dev, ABS_THROTTLE, 255 - data[4]); if (len >= 8 && test_bit(ABS_RUDDER ,dev->absbit)) @@ -188,7 +191,8 @@ void iforce_process_packet(struct iforce *iforce, break; case 0x03: /* wheel position data */ - input_report_abs(dev, ABS_WHEEL, (__s16) (((__s16)data[1] << 8) | data[0])); + input_report_abs(dev, ABS_WHEEL, + (__s16) get_unaligned_le16(data)); input_report_abs(dev, ABS_GAS, 255 - data[2]); input_report_abs(dev, ABS_BRAKE, 255 - data[3]); @@ -214,7 +218,7 @@ void iforce_process_packet(struct iforce *iforce, } for (j = 3; j < len; j += 2) - mark_core_as_ready(iforce, data[j] | (data[j + 1] << 8)); + mark_core_as_ready(iforce, get_unaligned_le16(data + j)); break; } |