diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/platform/x86/thinkpad_acpi.c | 61 |
1 files changed, 38 insertions, 23 deletions
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 763aef0e7764..5dea4c270482 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -3483,6 +3483,32 @@ static const int adaptive_keyboard_modes[] = { static bool adaptive_keyboard_mode_is_saved; static int adaptive_keyboard_prev_mode; +static int adaptive_keyboard_get_mode(void) +{ + int mode = 0; + + if (!acpi_evalf(hkey_handle, &mode, "GTRW", "dd", 0)) { + pr_err("Cannot read adaptive keyboard mode\n"); + return -EIO; + } + + return mode; +} + +static int adaptive_keyboard_set_mode(int new_mode) +{ + if (new_mode < 0 || + new_mode > LAYFLAT_MODE) + return -EINVAL; + + if (!acpi_evalf(hkey_handle, NULL, "STRW", "vd", new_mode)) { + pr_err("Cannot set adaptive keyboard mode\n"); + return -EIO; + } + + return 0; +} + static int adaptive_keyboard_get_next_mode(int mode) { size_t i; @@ -3512,39 +3538,28 @@ static bool adaptive_keyboard_hotkey_notify_hotkey(unsigned int scancode) new_mode = adaptive_keyboard_prev_mode; adaptive_keyboard_mode_is_saved = false; } else { - if (!acpi_evalf( - hkey_handle, ¤t_mode, - "GTRW", "dd", 0)) { - pr_err("Cannot read adaptive keyboard mode\n"); + current_mode = adaptive_keyboard_get_mode(); + if (current_mode < 0) return false; - } else { - new_mode = adaptive_keyboard_get_next_mode( - current_mode); - } + new_mode = adaptive_keyboard_get_next_mode( + current_mode); } - if (!acpi_evalf(hkey_handle, NULL, "STRW", "vd", new_mode)) { - pr_err("Cannot set adaptive keyboard mode\n"); + if (adaptive_keyboard_set_mode(new_mode) < 0) return false; - } return true; case DFR_SHOW_QUICKVIEW_ROW: - if (!acpi_evalf(hkey_handle, - &adaptive_keyboard_prev_mode, - "GTRW", "dd", 0)) { - pr_err("Cannot read adaptive keyboard mode\n"); + current_mode = adaptive_keyboard_get_mode(); + if (current_mode < 0) return false; - } else { - adaptive_keyboard_mode_is_saved = true; - if (!acpi_evalf(hkey_handle, - NULL, "STRW", "vd", FUNCTION_MODE)) { - pr_err("Cannot set adaptive keyboard mode\n"); - return false; - } - } + adaptive_keyboard_prev_mode = current_mode; + adaptive_keyboard_mode_is_saved = true; + + if (adaptive_keyboard_set_mode (FUNCTION_MODE) < 0) + return false; return true; default: |