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Date: Wed, 18 Feb 2015 21:53:44 +0100
From: Bastien Nocera <hadess@...ess.net>
To: Henrique de Moraes Holschuh <ibm-acpi@....eng.br>,
Darren Hart <dvhart@...radead.org>,
ibm-acpi-devel@...ts.sourceforge.net,
platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-input@...r.kernel.org
Subject: [PATCH 3/6] thinkpad_acpi: Add adaptive_kbd_mode sysfs attr
Signed-off-by: Bastien Nocera <hadess@...ess.net>
---
drivers/platform/x86/thinkpad_acpi.c | 71 +++++++++++++++++++++++++++++++-----
1 file changed, 62 insertions(+), 9 deletions(-)
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index a6dd017..562d958 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -2917,6 +2917,59 @@ static void hotkey_wakeup_hotunplug_complete_notify_change(void)
"wakeup_hotunplug_complete");
}
+/* sysfs adaptive kbd mode --------------------------------------------- */
+
+static int adaptive_keyboard_get_mode(void);
+static int adaptive_keyboard_set_mode(int new_mode);
+
+enum ADAPTIVE_KEY_MODE {
+ HOME_MODE,
+ WEB_BROWSER_MODE,
+ WEB_CONFERENCE_MODE,
+ FUNCTION_MODE,
+ LAYFLAT_MODE
+};
+
+static ssize_t adaptive_kbd_mode_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ u32 current_mode;
+
+ current_mode = adaptive_keyboard_get_mode();
+ if (current_mode < 0)
+ return current_mode;
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", current_mode);
+}
+
+static ssize_t adaptive_kbd_mode_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ unsigned long t;
+ int res;
+
+ if (parse_strtoul(buf, LAYFLAT_MODE, &t))
+ return -EINVAL;
+
+ res = adaptive_keyboard_set_mode(t);
+ return (res < 0) ? res : count;
+}
+
+static struct device_attribute dev_attr_adaptive_kbd_mode =
+ __ATTR(adaptive_kbd_mode, S_IWUSR | S_IRUGO,
+ adaptive_kbd_mode_show, adaptive_kbd_mode_store);
+
+static struct attribute *adaptive_kbd_attributes[] = {
+ &dev_attr_adaptive_kbd_mode.attr,
+ NULL
+};
+
+static const struct attribute_group adaptive_kbd_attr_group = {
+ .attrs = adaptive_kbd_attributes,
+};
+
/* --------------------------------------------------------------------- */
static struct attribute *hotkey_attributes[] __initdata = {
@@ -3230,8 +3283,13 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
/* does it have an adaptive keyboard, like
* the Lenovo Carbon X1 2014 (2nd gen) */
if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) {
- if ((hkeyv >> 8) == 2)
+ if ((hkeyv >> 8) == 2) {
tp_features.has_adaptive_kbd = true;
+ res = sysfs_create_group(&tpacpi_pdev->dev.kobj,
+ &adaptive_kbd_attr_group);
+ if (res)
+ goto err_exit;
+ }
}
quirks = tpacpi_check_quirks(tpacpi_hotkey_qtable,
@@ -3444,6 +3502,9 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
err_exit:
delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj);
+ sysfs_remove_group(&tpacpi_pdev->dev.kobj,
+ &adaptive_kbd_attr_group);
+
hotkey_dev_attributes = NULL;
return (res < 0) ? res : 1;
@@ -3456,14 +3517,6 @@ err_exit:
* Will consider support rest of modes in future.
*
*/
-enum ADAPTIVE_KEY_MODE {
- HOME_MODE,
- WEB_BROWSER_MODE,
- WEB_CONFERENCE_MODE,
- FUNCTION_MODE,
- LAYFLAT_MODE
-};
-
const int adaptive_keyboard_modes[] = {
HOME_MODE,
/* WEB_BROWSER_MODE = 2,
--
2.1.0
--
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