Backport from 3.2 (754214)
Andy Ross (4):
asus-laptop: Platform detection for Pegatron Lucid
asus-laptop: Pegatron Lucid ALS sensor
asus-laptop: allow boot time control of Pegatron ALS sensor
asus-laptop: Pegatron Lucid accelerometer
Anisse Astier (2):
asus-laptop: pega_accel - Report accelerometer orientation change through udev
asus-laptop: Add rfkill support for Pegatron Lucid tablet
Axel Lin (1):
platform-drivers-x86: asus-laptop: fix wrong test for successful registered led_classdev
Corentin Chary (2):
asus-laptop: hide leds on Pegatron Lucid
asus-laptop: fix module description
diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c
index fa6d7ec..edaccad 100644
--- a/drivers/platform/x86/asus-laptop.c
+++ b/drivers/platform/x86/asus-laptop.c
@@ -4,6 +4,7 @@
*
* Copyright (C) 2002-2005 Julien Lerouge, 2003-2006 Karol Kozimor
* Copyright (C) 2006-2007 Corentin Chary
+ * Copyright (C) 2011 Wind River Systems
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -48,6 +49,7 @@
#include <linux/uaccess.h>
#include <linux/input.h>
#include <linux/input/sparse-keymap.h>
+#include <linux/input-polldev.h>
#include <linux/rfkill.h>
#include <linux/slab.h>
#include <linux/dmi.h>
@@ -83,26 +85,32 @@ static int wlan_status = 1;
static int bluetooth_status = 1;
static int wimax_status = -1;
static int wwan_status = -1;
+static int als_status;
module_param(wlan_status, int, 0444);
MODULE_PARM_DESC(wlan_status, "Set the wireless status on boot "
"(0 = disabled, 1 = enabled, -1 = don't do anything). "
- "default is 1");
+ "default is -1");
module_param(bluetooth_status, int, 0444);
MODULE_PARM_DESC(bluetooth_status, "Set the wireless status on boot "
"(0 = disabled, 1 = enabled, -1 = don't do anything). "
- "default is 1");
+ "default is -1");
module_param(wimax_status, int, 0444);
MODULE_PARM_DESC(wimax_status, "Set the wireless status on boot "
"(0 = disabled, 1 = enabled, -1 = don't do anything). "
- "default is 1");
+ "default is -1");
module_param(wwan_status, int, 0444);
MODULE_PARM_DESC(wwan_status, "Set the wireless status on boot "
"(0 = disabled, 1 = enabled, -1 = don't do anything). "
- "default is 1");
+ "default is -1");
+
+module_param(als_status, int, 0444);
+MODULE_PARM_DESC(als_status, "Set the ALS status on boot "
+ "(0 = disabled, 1 = enabled). "
+ "default is 0");
/*
* Some events we use, same for all Asus
@@ -173,6 +181,29 @@ MODULE_PARM_DESC(wwan_status, "Set the wireless status on boot "
#define METHOD_KBD_LIGHT_SET "SLKB"
#define METHOD_KBD_LIGHT_GET "GLKB"
+/* For Pegatron Lucid tablet */
+#define DEVICE_NAME_PEGA "Lucid"
+
+#define METHOD_PEGA_ENABLE "ENPR"
+#define METHOD_PEGA_DISABLE "DAPR"
+#define PEGA_WLAN 0x00
+#define PEGA_BLUETOOTH 0x01
+#define PEGA_WWAN 0x02
+#define PEGA_ALS 0x04
+#define PEGA_ALS_POWER 0x05
+
+#define METHOD_PEGA_READ "RDLN"
+#define PEGA_READ_ALS_H 0x02
+#define PEGA_READ_ALS_L 0x03
+
+#define PEGA_ACCEL_NAME "pega_accel"
+#define PEGA_ACCEL_DESC "Pegatron Lucid Tablet Accelerometer"
+#define METHOD_XLRX "XLRX"
+#define METHOD_XLRY "XLRY"
+#define METHOD_XLRZ "XLRZ"
+#define PEGA_ACC_CLAMP 512 /* 1G accel is reported as ~256, so clamp to 2G */
+#define PEGA_ACC_RETRIES 3
+
/*
* Define a specific led structure to keep the main structure clean
*/
@@ -185,6 +216,15 @@ struct asus_led {
};
/*
+ * Same thing for rfkill
+ */
+struct asus_pega_rfkill {
+ int control_id; /* type of control. Maps to PEGA_* values */
+ struct rfkill *rfkill;
+ struct asus_laptop *asus;
+};
+
+/*
* This is the main structure, we can use it to store anything interesting
* about the hotk device
*/
@@ -198,6 +238,7 @@ struct asus_laptop {
struct input_dev *inputdev;
struct key_entry *keymap;
+ struct input_polled_dev *pega_accel_poll;
struct asus_led mled;
struct asus_led tled;
@@ -209,9 +250,18 @@ struct asus_laptop {
int wireless_status;
bool have_rsts;
+ bool is_pega_lucid;
+ bool pega_acc_live;
+ int pega_acc_x;
+ int pega_acc_y;
+ int pega_acc_z;
struct rfkill *gps_rfkill;
+ struct asus_pega_rfkill wlanrfk;
+ struct asus_pega_rfkill btrfk;
+ struct asus_pega_rfkill wwanrfk;
+
acpi_handle handle; /* the handle of the hotk device */
u32 ledd_status; /* status of the LED display */
u8 light_level; /* light sensor level */
@@ -323,6 +373,127 @@ static int acpi_check_handle(acpi_handle handle, const char *method,
return 0;
}
+static bool asus_check_pega_lucid(struct asus_laptop *asus)
+{
+ return !strcmp(asus->name, DEVICE_NAME_PEGA) &&
+ !acpi_check_handle(asus->handle, METHOD_PEGA_ENABLE, NULL) &&
+ !acpi_check_handle(asus->handle, METHOD_PEGA_DISABLE, NULL) &&
+ !acpi_check_handle(asus->handle, METHOD_PEGA_READ, NULL);
+}
+
+static int asus_pega_lucid_set(struct asus_laptop *asus, int unit, bool enable)
+{
+ char *method = enable ? METHOD_PEGA_ENABLE : METHOD_PEGA_DISABLE;
+ return write_acpi_int(asus->handle, method, unit);
+}
+
+static int pega_acc_axis(struct asus_laptop *asus, int curr, char *method)
+{
+ int i, delta;
+ unsigned long long val;
+ for (i = 0; i < PEGA_ACC_RETRIES; i++) {
+ acpi_evaluate_integer(asus->handle, method, NULL, &val);
+
+ /* The output is noisy. From reading the ASL
+ * dissassembly, timeout errors are returned with 1's
+ * in the high word, and the lack of locking around
+ * thei hi/lo byte reads means that a transition
+ * between (for example) -1 and 0 could be read as
+ * 0xff00 or 0x00ff. */
+ delta = abs(curr - (short)val);
+ if (delta < 128 && !(val & ~0xffff))
+ break;
+ }
+ return clamp_val((short)val, -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP);
+}
+
+static void pega_accel_poll(struct input_polled_dev *ipd)
+{
+ struct device *parent = ipd->input->dev.parent;
+ struct asus_laptop *asus = dev_get_drvdata(parent);
+
+ /* In some cases, the very first call to poll causes a
+ * recursive fault under the polldev worker. This is
+ * apparently related to very early userspace access to the
+ * device, and perhaps a firmware bug. Fake the first report. */
+ if (!asus->pega_acc_live) {
+ asus->pega_acc_live = true;
+ input_report_abs(ipd->input, ABS_X, 0);
+ input_report_abs(ipd->input, ABS_Y, 0);
+ input_report_abs(ipd->input, ABS_Z, 0);
+ input_sync(ipd->input);
+ return;
+ }
+
+ asus->pega_acc_x = pega_acc_axis(asus, asus->pega_acc_x, METHOD_XLRX);
+ asus->pega_acc_y = pega_acc_axis(asus, asus->pega_acc_y, METHOD_XLRY);
+ asus->pega_acc_z = pega_acc_axis(asus, asus->pega_acc_z, METHOD_XLRZ);
+
+ /* Note transform, convert to "right/up/out" in the native
+ * landscape orientation (i.e. the vector is the direction of
+ * "real up" in the device's cartiesian coordinates). */
+ input_report_abs(ipd->input, ABS_X, -asus->pega_acc_x);
+ input_report_abs(ipd->input, ABS_Y, -asus->pega_acc_y);
+ input_report_abs(ipd->input, ABS_Z, asus->pega_acc_z);
+ input_sync(ipd->input);
+}
+
+static void pega_accel_exit(struct asus_laptop *asus)
+{
+ if (asus->pega_accel_poll) {
+ input_unregister_polled_device(asus->pega_accel_poll);
+ input_free_polled_device(asus->pega_accel_poll);
+ }
+ asus->pega_accel_poll = NULL;
+}
+
+static int pega_accel_init(struct asus_laptop *asus)
+{
+ int err;
+ struct input_polled_dev *ipd;
+
+ if (!asus->is_pega_lucid)
+ return -ENODEV;
+
+ if (acpi_check_handle(asus->handle, METHOD_XLRX, NULL) ||
+ acpi_check_handle(asus->handle, METHOD_XLRY, NULL) ||
+ acpi_check_handle(asus->handle, METHOD_XLRZ, NULL))
+ return -ENODEV;
+
+ ipd = input_allocate_polled_device();
+ if (!ipd)
+ return -ENOMEM;
+
+ ipd->poll = pega_accel_poll;
+ ipd->poll_interval = 125;
+ ipd->poll_interval_min = 50;
+ ipd->poll_interval_max = 2000;
+
+ ipd->input->name = PEGA_ACCEL_DESC;
+ ipd->input->phys = PEGA_ACCEL_NAME "/input0";
+ ipd->input->dev.parent = &asus->platform_device->dev;
+ ipd->input->id.bustype = BUS_HOST;
+
+ set_bit(EV_ABS, ipd->input->evbit);
+ input_set_abs_params(ipd->input, ABS_X,
+ -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0);
+ input_set_abs_params(ipd->input, ABS_Y,
+ -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0);
+ input_set_abs_params(ipd->input, ABS_Z,
+ -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0);
+
+ err = input_register_polled_device(ipd);
+ if (err)
+ goto exit;
+
+ asus->pega_accel_poll = ipd;
+ return 0;
+
+exit:
+ input_free_polled_device(ipd);
+ return err;
+}
+
/* Generic LED function */
static int asus_led_set(struct asus_laptop *asus, const char *method,
int value)
@@ -430,17 +601,17 @@ static enum led_brightness asus_kled_cdev_get(struct led_classdev *led_cdev)
static void asus_led_exit(struct asus_laptop *asus)
{
- if (asus->mled.led.dev)
+ if (!IS_ERR_OR_NULL(asus->mled.led.dev))
led_classdev_unregister(&asus->mled.led);
- if (asus->tled.led.dev)
+ if (!IS_ERR_OR_NULL(asus->tled.led.dev))
led_classdev_unregister(&asus->tled.led);
- if (asus->pled.led.dev)
+ if (!IS_ERR_OR_NULL(asus->pled.led.dev))
led_classdev_unregister(&asus->pled.led);
- if (asus->rled.led.dev)
+ if (!IS_ERR_OR_NULL(asus->rled.led.dev))
led_classdev_unregister(&asus->rled.led);
- if (asus->gled.led.dev)
+ if (!IS_ERR_OR_NULL(asus->gled.led.dev))
led_classdev_unregister(&asus->gled.led);
- if (asus->kled.led.dev)
+ if (!IS_ERR_OR_NULL(asus->kled.led.dev))
led_classdev_unregister(&asus->kled.led);
if (asus->led_workqueue) {
destroy_workqueue(asus->led_workqueue);
@@ -474,6 +645,13 @@ static int asus_led_init(struct asus_laptop *asus)
int r;
/*
+ * The Pegatron Lucid has no physical leds, but all methods are
+ * available in the DSDT...
+ */
+ if (asus->is_pega_lucid)
+ return 0;
+
+ /*
* Functions that actually update the LED's are called from a
* workqueue. By doing this as separate work rather than when the LED
* subsystem asks, we avoid messing with the Asus ACPI stuff during a
@@ -907,8 +1085,18 @@ static ssize_t store_disp(struct device *dev, struct device_attribute *attr,
*/
static void asus_als_switch(struct asus_laptop *asus, int value)
{
- if (write_acpi_int(asus->handle, METHOD_ALS_CONTROL, value))
- pr_warn("Error setting light sensor switch\n");
+ int ret;
+
+ if (asus->is_pega_lucid) {
+ ret = asus_pega_lucid_set(asus, PEGA_ALS, value);
+ if (!ret)
+ ret = asus_pega_lucid_set(asus, PEGA_ALS_POWER, value);
+ } else {
+ ret = write_acpi_int(asus->handle, METHOD_ALS_CONTROL, value);
+ }
+ if (ret)
+ pr_warning("Error setting light sensor switch\n");
+
asus->light_switch = value;
}
@@ -964,6 +1152,35 @@ static ssize_t store_lslvl(struct device *dev, struct device_attribute *attr,
return rv;
}
+static int pega_int_read(struct asus_laptop *asus, int arg, int *result)
+{
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ int err = write_acpi_int_ret(asus->handle, METHOD_PEGA_READ, arg,
+ &buffer);
+ if (!err) {
+ union acpi_object *obj = buffer.pointer;
+ if (obj && obj->type == ACPI_TYPE_INTEGER)
+ *result = obj->integer.value;
+ else
+ err = -EIO;
+ }
+ return err;
+}
+
+static ssize_t show_lsvalue(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct asus_laptop *asus = dev_get_drvdata(dev);
+ int err, hi, lo;
+
+ err = pega_int_read(asus, PEGA_READ_ALS_H, &hi);
+ if (!err)
+ err = pega_int_read(asus, PEGA_READ_ALS_L, &lo);
+ if (!err)
+ return sprintf(buf, "%d\n", 10 * hi + lo);
+ return err;
+}
+
/*
* GPS
*/
@@ -1062,6 +1279,86 @@ static int asus_rfkill_init(struct asus_laptop *asus)
return result;
}
+static int pega_rfkill_set(void *data, bool blocked)
+{
+ struct asus_pega_rfkill *pega_rfk = data;
+
+ int ret = asus_pega_lucid_set(pega_rfk->asus, pega_rfk->control_id, !blocked);
+ pr_warn("Setting rfkill %d, to %d; returned %d\n", pega_rfk->control_id, !blocked, ret);
+
+ return ret;
+}
+
+static const struct rfkill_ops pega_rfkill_ops = {
+ .set_block = pega_rfkill_set,
+};
+
+static void pega_rfkill_terminate(struct asus_pega_rfkill *pega_rfk)
+{
+ pr_warn("Terminating %d\n", pega_rfk->control_id);
+ if (pega_rfk->rfkill) {
+ rfkill_unregister(pega_rfk->rfkill);
+ rfkill_destroy(pega_rfk->rfkill);
+ pega_rfk->rfkill = NULL;
+ }
+}
+
+static void pega_rfkill_exit(struct asus_laptop *asus)
+{
+ pega_rfkill_terminate(&asus->wwanrfk);
+ pega_rfkill_terminate(&asus->btrfk);
+ pega_rfkill_terminate(&asus->wlanrfk);
+}
+
+static int pega_rfkill_setup(struct asus_laptop *asus, struct asus_pega_rfkill *pega_rfk,
+ const char *name, int controlid, int rfkill_type)
+{
+ int result;
+
+ pr_warn("Setting up rfk %s, control %d, type %d\n", name, controlid, rfkill_type);
+ pega_rfk->control_id = controlid;
+ pega_rfk->asus = asus;
+ pega_rfk->rfkill = rfkill_alloc(name, &asus->platform_device->dev,
+ rfkill_type, &pega_rfkill_ops, pega_rfk);
+ if (!pega_rfk->rfkill)
+ return -EINVAL;
+
+ result = rfkill_register(pega_rfk->rfkill);
+ if (result) {
+ rfkill_destroy(pega_rfk->rfkill);
+ pega_rfk->rfkill = NULL;
+ }
+
+ return result;
+}
+
+static int pega_rfkill_init(struct asus_laptop *asus)
+{
+ int ret = 0;
+
+ if(!asus->is_pega_lucid)
+ return -ENODEV;
+
+ ret = pega_rfkill_setup(asus, &asus->wlanrfk, "pega-wlan", PEGA_WLAN, RFKILL_TYPE_WLAN);
+ if(ret)
+ return ret;
+ ret = pega_rfkill_setup(asus, &asus->btrfk, "pega-bt", PEGA_BLUETOOTH, RFKILL_TYPE_BLUETOOTH);
+ if(ret)
+ goto err_btrfk;
+ ret = pega_rfkill_setup(asus, &asus->wwanrfk, "pega-wwan", PEGA_WWAN, RFKILL_TYPE_WWAN);
+ if(ret)
+ goto err_wwanrfk;
+
+ pr_warn("Pega rfkill init succeeded\n");
+ return 0;
+err_wwanrfk:
+ pega_rfkill_terminate(&asus->btrfk);
+err_btrfk:
+ pega_rfkill_terminate(&asus->wlanrfk);
+
+ return ret;
+}
+
/*
* Input device (i.e. hotkeys)
*/
@@ -1141,6 +1438,14 @@ static void asus_acpi_notify(struct acpi_device *device, u32 event)
}
return ;
}
+
+ /* Accelerometer "coarse orientation change" event */
+ if (asus->pega_accel_poll && event == 0xEA) {
+ kobject_uevent(&asus->pega_accel_poll->input->dev.kobj,
+ KOBJ_CHANGE);
+ return ;
+ }
+
asus_input_notify(asus, event);
}
@@ -1152,6 +1457,7 @@ static DEVICE_ATTR(wimax, S_IRUGO | S_IWUSR, show_wimax, store_wimax);
static DEVICE_ATTR(wwan, S_IRUGO | S_IWUSR, show_wwan, store_wwan);
static DEVICE_ATTR(display, S_IWUSR, NULL, store_disp);
static DEVICE_ATTR(ledd, S_IRUGO | S_IWUSR, show_ledd, store_ledd);
+static DEVICE_ATTR(ls_value, S_IRUGO, show_lsvalue, NULL);
static DEVICE_ATTR(ls_level, S_IRUGO | S_IWUSR, show_lslvl, store_lslvl);
static DEVICE_ATTR(ls_switch, S_IRUGO | S_IWUSR, show_lssw, store_lssw);
static DEVICE_ATTR(gps, S_IRUGO | S_IWUSR, show_gps, store_gps);
@@ -1164,6 +1470,7 @@ static struct attribute *asus_attributes[] = {
&dev_attr_wwan.attr,
&dev_attr_display.attr,
&dev_attr_ledd.attr,
+ &dev_attr_ls_value.attr,
&dev_attr_ls_level.attr,
&dev_attr_ls_switch.attr,
&dev_attr_gps.attr,
@@ -1180,6 +1487,19 @@ static mode_t asus_sysfs_is_visible(struct kobject *kobj,
acpi_handle handle = asus->handle;
bool supported;
+ if (asus->is_pega_lucid) {
+ /* no ls_level interface on the Lucid */
+ if (attr == &dev_attr_ls_switch.attr)
+ supported = true;
+ else if (attr == &dev_attr_ls_level.attr)
+ supported = false;
+ else
+ goto normal;
+
+ return supported;
+ }
+
+normal:
if (attr == &dev_attr_wlan.attr) {
supported = !acpi_check_handle(handle, METHOD_WLAN, NULL);
@@ -1202,8 +1522,9 @@ static mode_t asus_sysfs_is_visible(struct kobject *kobj,
} else if (attr == &dev_attr_ls_switch.attr ||
attr == &dev_attr_ls_level.attr) {
supported = !acpi_check_handle(handle, METHOD_ALS_CONTROL, NULL) &&
- !acpi_check_handle(handle, METHOD_ALS_LEVEL, NULL);
-
+ !acpi_check_handle(handle, METHOD_ALS_LEVEL, NULL);
+ } else if (attr == &dev_attr_ls_value.attr) {
+ supported = asus->is_pega_lucid;
} else if (attr == &dev_attr_gps.attr) {
supported = !acpi_check_handle(handle, METHOD_GPS_ON, NULL) &&
!acpi_check_handle(handle, METHOD_GPS_OFF, NULL) &&
@@ -1258,7 +1579,7 @@ static struct platform_driver platform_driver = {
.driver = {
.name = ASUS_LAPTOP_FILE,
.owner = THIS_MODULE,
- }
+ },
};
/*
@@ -1388,11 +1709,13 @@ static int __devinit asus_acpi_init(struct asus_laptop *asus)
asus->ledd_status = 0xFFF;
/* Set initial values of light sensor and level */
- asus->light_switch = 0; /* Default to light sensor disabled */
+ asus->light_switch = !!als_status;
asus->light_level = 5; /* level 5 for sensor sensitivity */
- if (!acpi_check_handle(asus->handle, METHOD_ALS_CONTROL, NULL) &&
- !acpi_check_handle(asus->handle, METHOD_ALS_LEVEL, NULL)) {
+ if (asus->is_pega_lucid) {
+ asus_als_switch(asus, asus->light_switch);
+ } else if (!acpi_check_handle(asus->handle, METHOD_ALS_CONTROL, NULL) &&
+ !acpi_check_handle(asus->handle, METHOD_ALS_LEVEL, NULL)) {
asus_als_switch(asus, asus->light_switch);
asus_als_level(asus, asus->light_level);
}
@@ -1439,9 +1762,10 @@ static int __devinit asus_acpi_add(struct acpi_device *device)
goto fail_platform;
/*
- * Register the platform device first. It is used as a parent for the
- * sub-devices below.
+ * Need platform type detection first, then the platform
+ * device. It is used as a parent for the sub-devices below.
*/
+ asus->is_pega_lucid = asus_check_pega_lucid(asus);
result = asus_platform_init(asus);
if (result)
goto fail_platform;
@@ -1465,9 +1789,21 @@ static int __devinit asus_acpi_add(struct acpi_device *device)
if (result)
goto fail_rfkill;
+ result = pega_accel_init(asus);
+ if (result && result != -ENODEV)
+ goto fail_pega_accel;
+
+ result = pega_rfkill_init(asus);
+ if (result && result != -ENODEV)
+ goto fail_pega_rfkill;
+
asus_device_present = true;
return 0;
+fail_pega_rfkill:
+ pega_accel_exit(asus);
+fail_pega_accel:
+ asus_rfkill_exit(asus);
fail_rfkill:
asus_led_exit(asus);
fail_led:
@@ -1491,6 +1827,8 @@ static int asus_acpi_remove(struct acpi_device *device, int type)
asus_rfkill_exit(asus);
asus_led_exit(asus);
asus_input_exit(asus);
+ pega_accel_exit(asus);
+ pega_rfkill_exit(asus);
asus_platform_exit(asus);
kfree(asus->name);