linux-kernel - [PATCH 56/62] msi-laptop: Support standard ec 66/62 command on MSI notebook and nebook

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1267572541-410-56-git-send-email-gregkh@suse.de>
Date:	Tue,  2 Mar 2010 15:28:55 -0800
From:	Greg Kroah-Hartman <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org
Cc:	"Lee, Chun-Yi" <jlee@...ell.com>,
	Lennart Poettering <mzxreary@...inter.de>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [PATCH 56/62] msi-laptop: Support standard ec 66/62 command on MSI notebook and nebook

From: Lee, Chun-Yi <jlee@...ell.com>

Suppport standard ec 66/62 command on MSI notebook and nebook. MSI
netbook and notebook already support 66/62 command, so, add new
get_state function, and put the old model to non-standard model, but
driver still support those old model.

Signed-off-by: Lee, Chun-Yi <jlee@...ell.com>
Cc: Lennart Poettering <mzxreary@...inter.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 drivers/platform/x86/msi-laptop.c |   43 +++++++++++++++++++++++++++++++++---
 1 files changed, 39 insertions(+), 4 deletions(-)

diff --git a/drivers/platform/x86/msi-laptop.c b/drivers/platform/x86/msi-laptop.c
index 759763d..323e994 100644
--- a/drivers/platform/x86/msi-laptop.c
+++ b/drivers/platform/x86/msi-laptop.c
@@ -66,6 +66,11 @@
 #define MSI_EC_COMMAND_WIRELESS 0x10
 #define MSI_EC_COMMAND_LCD_LEVEL 0x11
 
+#define MSI_STANDARD_EC_COMMAND_ADDRESS	0x2e
+#define MSI_STANDARD_EC_BLUETOOTH_MASK	(1 << 0)
+#define MSI_STANDARD_EC_WEBCAM_MASK	(1 << 1)
+#define MSI_STANDARD_EC_WLAN_MASK	(1 << 3)
+
 static int force;
 module_param(force, bool, 0);
 MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
@@ -74,6 +79,9 @@ static int auto_brightness;
 module_param(auto_brightness, int, 0);
 MODULE_PARM_DESC(auto_brightness, "Enable automatic brightness control (0: disabled; 1: enabled; 2: don't touch)");
 
+static bool old_ec_model;
+static int wlan_s, bluetooth_s;
+
 /* Hardware access */
 
 static int set_lcd_level(int level)
@@ -148,6 +156,22 @@ static int get_wireless_state(int *wlan, int *bluetooth)
 	return 0;
 }
 
+static int get_wireless_state_ec_standard(void)
+{
+	u8 rdata;
+	int result;
+
+	result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata);
+	if (result < 0)
+		return -1;
+
+	wlan_s = !!(rdata & MSI_STANDARD_EC_WLAN_MASK);
+
+	bluetooth_s = !!(rdata & MSI_STANDARD_EC_BLUETOOTH_MASK);
+
+	return 0;
+}
+
 /* Backlight device stuff */
 
 static int bl_get_brightness(struct backlight_device *b)
@@ -176,7 +200,12 @@ static ssize_t show_wlan(struct device *dev,
 
 	int ret, enabled;
 
-	ret = get_wireless_state(&enabled, NULL);
+	if (old_ec_model) {
+		ret = get_wireless_state(&enabled, NULL);
+	} else {
+		ret = get_wireless_state_ec_standard();
+		enabled = wlan_s;
+	}
 	if (ret < 0)
 		return ret;
 
@@ -189,7 +218,12 @@ static ssize_t show_bluetooth(struct device *dev,
 
 	int ret, enabled;
 
-	ret = get_wireless_state(NULL, &enabled);
+	if (old_ec_model) {
+		ret = get_wireless_state(NULL, &enabled);
+	} else {
+		ret = get_wireless_state_ec_standard();
+		enabled = bluetooth_s;
+	}
 	if (ret < 0)
 		return ret;
 
@@ -339,8 +373,8 @@ static int __init msi_init(void)
 	if (acpi_disabled)
 		return -ENODEV;
 
-	if (!force && !dmi_check_system(msi_dmi_table))
-		return -ENODEV;
+	if (force || dmi_check_system(msi_dmi_table))
+		old_ec_model = 1;
 
 	if (auto_brightness < 0 || auto_brightness > 2)
 		return -EINVAL;
@@ -435,3 +469,4 @@ MODULE_ALIAS("dmi:*:svnMICRO-STARINT'LCO.,LTD:pnMS-1013:pvr0131*:cvnMICRO-STARIN
 MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1058:pvr0581:rvnMSI:rnMS-1058:*:ct10:*");
 MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1412:*:rvnMSI:rnMS-1412:*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
 MODULE_ALIAS("dmi:*:svnNOTEBOOK:pnSAM2000:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
+MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N034:*");
-- 
1.7.0.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/