[PATCH 15/26] ACPI: thinkpad-acpi: issue input events for tablet swivel events

Len Brown
2008-02-21T09:29:01Z

From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>

Issue EV_SW SW_TABLET_MODE events for HKEY events 0x5009 and 0x500A on the
X41t/X60t/X61t. As usual, we suppress the HKEY events on the netlink
interface to avoid sending duplicate events to userspace.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
---
Documentation/laptops/thinkpad-acpi.txt | 4 ++--
drivers/misc/thinkpad_acpi.c | 22 ++++++++++++++++++++--
2 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/Documentation/laptops/thinkpad-acpi.txt b/Documentation/laptops/thinkpad-acpi.txt
index 33d6e5a..0ae5708 100644
--- a/Documentation/laptops/thinkpad-acpi.txt
+++ b/Documentation/laptops/thinkpad-acpi.txt
@@ -491,6 +491,8 @@ generate input device EV_KEY events.
Non hot-key ACPI HKEY event map:
0x5001 Lid closed
0x5002 Lid opened
+0x5009 Tablet swivel: switched to tablet mode
+0x500A Tablet swivel: switched to normal mode
0x7000 Radio Switch may have changed state

The above events are not propagated by the driver, except for legacy
@@ -505,8 +507,6 @@ The above events are never propagated by the driver.

0x3003 Bay ejection (see 0x2x05) complete, can sleep again
0x4003 Undocked (see 0x2x04), can sleep again
-0x5009 Tablet swivel: switched to tablet mode
-0x500A Tablet swivel: switched to normal mode
0x500B Tablet pen insterted into its storage bay
0x500C Tablet pen removed from its storage bay
0x5010 Brightness level changed (newer Lenovo BIOSes)
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index 4ea3866..3548350 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -1172,6 +1172,17 @@ static void tpacpi_input_send_radiosw(void)
mutex_unlock(&tpacpi_inputdev_send_mutex);
}

+static void tpacpi_input_send_tabletsw(unsigned int state)
+{
+ mutex_lock(&tpacpi_inputdev_send_mutex);
+
+ input_report_switch(tpacpi_inputdev,
+ SW_TABLET_MODE, !!state);
+ input_sync(tpacpi_inputdev);
+
+ mutex_unlock(&tpacpi_inputdev_send_mutex);
+}
+
static void tpacpi_input_send_key(unsigned int scancode)
{
unsigned int keycode;
@@ -2020,6 +2031,10 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
set_bit(EV_SW, tpacpi_inputdev->evbit);
set_bit(SW_RADIO, tpacpi_inputdev->swbit);
}
+ if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) {
+ set_bit(EV_SW, tpacpi_inputdev->evbit);
+ set_bit(SW_TABLET_MODE, tpacpi_inputdev->swbit);
+ }

dbg_printk(TPACPI_DBG_INIT,
"enabling hot key handling\n");
@@ -2169,11 +2184,14 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
/* 0x5000-0x5FFF: human interface helpers */
switch (hkey) {
case 0x5010: /* Lenovo new BIOS: brightness changed */
- case 0x5009: /* X61t: swivel up (tablet mode) */
- case 0x500a: /* X61t: swivel down (normal mode) */
case 0x500b: /* X61t: tablet pen inserted into bay */
case 0x500c: /* X61t: tablet pen removed from bay */
break;
+ case 0x5009: /* X61t: swivel up (tablet mode) */
+ case 0x500a: /* X61t: swivel down (normal mode) */
+ tpacpi_input_send_tabletsw((hkey == 0x5009));
+ send_acpi_ev = 0;
+ break;
case 0x5001:
case 0x5002:
/* LID switch events. Do not propagate */
--
1.5.4.2