Bug: #346586

http://launchpad.net/bugs/346586

This patch solves a long-standing issue where the Prestigio 157 does not
re-enable the RF kill switch after resuming from suspend.

Originally thought to be an issue with the ipw2200 (bug #53310) and then
specifically the un-maintained acerhk (bug #53953) which also supports
the same key inputs.

The wistron_btns driver is maintained upstream and fully supports all
the Prestigio buttons and functions.

I'm sending this patch to the upstream maintainer Miloslav Trmac.


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Bug: #346586

Other bugs: #53953 #53310

The Prestigio 157, an old no-name clone laptop uses input keys very similar to
the Wistron 1557/MS2141 with the addition of BIOS-controlled wireless radio
frequency kill switch.

This patch adds support for the RF kill switch control and adds manual identification
of the model.

The Prestigio does not expose any recognisable identity via dmidecode and so
requires manual selection at module init using force=1 keymap=prestigio

Signed-off-by: TJ <ubuntu@tjworld.net>
---
drivers/input/misc/wistron_btns.c | 18 ++++++++++++++++++
1 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/drivers/input/misc/wistron_btns.c b/drivers/input/misc/wistron_btns.c
index 7c8957d..563858b 100644
--- a/drivers/input/misc/wistron_btns.c
+++ b/drivers/input/misc/wistron_btns.c
@@ -611,6 +611,20 @@ static struct key_entry keymap_wistron_generic[] __initdata = {
{ KE_END, 0 }
};

+static struct key_entry keymap_prestigio[] __initdata = {
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_WIFI, 0x30 },
+ { KE_KEY, 0x22, {KEY_REWIND} },
+ { KE_KEY, 0x23, {KEY_FORWARD} },
+ { KE_KEY, 0x24, {KEY_PLAYPAUSE} },
+ { KE_KEY, 0x25, {KEY_STOPCD} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_END, 0 }
+};
+
+
/*
* If your machine is not here (which is currently rather likely), please send
* a list of buttons and their key codes (reported when loading this module
@@ -964,6 +978,10 @@ static int __init select_keymap(void)
keymap = keymap_wistron_ms2141;
else if (strcmp (keymap_name, "generic") == 0)
keymap = keymap_wistron_generic;
+ else if (strcmp (keymap_name, "prestigio") == 0) {
+ keymap = keymap_prestigio;
+ have_wifi = 1;
+ }
else {
printk(KERN_ERR "wistron_btns: Keymap unknown
");
return -EINVAL;
--
1.6.0.4


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