TononixOS/ubports_kernel_google_msm
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Input: add getkeycode and setkeycode methods

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Allow drivers to implement their own get and set keycode methods. This
will allow drivers to change their keymaps without allocating huge
tables covering entire range of possible scancodes.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Marvin Raaijmakers
2007-03-14 22:50:42 -04:00
committed by Dmitry Torokhov
parent 55e3d9224b
commit c8e4c77277
4 changed files with 122 additions and 96 deletions
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29
drivers/input/evdev.c
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@@ -434,32 +434,21 @@ static long evdev_ioctl_handler(struct file *file, unsigned int cmd,
case EVIOCGKEYCODE:
if (get_user(t, ip))
return -EFAULT;
if (t < 0 || t >= dev->keycodemax || !dev->keycodesize)
return -EINVAL;
if (put_user(INPUT_KEYCODE(dev, t), ip + 1))
error = dev->getkeycode(dev, t, &v);
if (error)
return error;
if (put_user(v, ip + 1))
return -EFAULT;
return 0;
case EVIOCSKEYCODE:
if (get_user(t, ip))
if (get_user(t, ip) || get_user(v, ip + 1))
return -EFAULT;
if (t < 0 || t >= dev->keycodemax || !dev->keycodesize)
return -EINVAL;
if (get_user(v, ip + 1))
return -EFAULT;
if (v < 0 || v > KEY_MAX)
return -EINVAL;
if (dev->keycodesize < sizeof(v) && (v >> (dev->keycodesize * 8)))
return -EINVAL;
u = SET_INPUT_KEYCODE(dev, t, v);
clear_bit(u, dev->keybit);
set_bit(v, dev->keybit);
for (i = 0; i < dev->keycodemax; i++)
if (INPUT_KEYCODE(dev, i) == u)
set_bit(u, dev->keybit);
return 0;
return dev->setkeycode(dev, t, v);
case EVIOCSFF:
if (copy_from_user(&effect, p, sizeof(effect)))