platform-drivers-x86 for 3.18-3
Remove hp_accel events from keyboard bus stream. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAABAgAGBQJUZYFKAAoJEKbMaAwKp364rjAH/jFoEj0sJa1nMRS4OsIwOuf+ zbh5wv9rLIsGI4lrvI35bUY+RXAudf5Ih4n0n6XwXvE8GfMjDCbKelRDdbBBhOcL knIcypuWKwrcl5mIp71ro8twm+dkFO7i6euts4S44wyBc5f43eYJfKdQ/BFsr5l+ 1187LU1TjZN+60no/bKoaoE1xHwd7dyqFmMSJJT9CBroa8pTRoyunlh6bxq9Couf CMaM79lsIDO6Jy+hFbos1HPCC4Cd7tHsQnHZqSPNCb49uQmz394pZhkIjV2T8nYa sdCUNtzOG/eRmVlUvZoV0TcvwEEtZMdYfq8erPa/cHbZxE61ln5WwEU7q2goOXk= =bk2k -----END PGP SIGNATURE----- Merge tag 'platform-drivers-x86-v3.18-3' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86 Pull x86 platform drivers fixlets from Darren Hart: "Just two patches to remove hp_accel events from the keyboard bus stream via an i8042 filter" * tag 'platform-drivers-x86-v3.18-3' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: platform: hp_accel: Add SERIO_I8042 as a dependency since it now includes i8042.h/serio.h platform: hp_accel: add a i8042 filter to remove HPQ6000 data from kb bus stream
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commit
5ae93760cb
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@ -202,6 +202,7 @@ config TC1100_WMI
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config HP_ACCEL
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tristate "HP laptop accelerometer"
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depends on INPUT && ACPI
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depends on SERIO_I8042
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select SENSORS_LIS3LV02D
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select NEW_LEDS
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select LEDS_CLASS
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@ -37,6 +37,8 @@
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#include <linux/leds.h>
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#include <linux/atomic.h>
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#include <linux/acpi.h>
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#include <linux/i8042.h>
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#include <linux/serio.h>
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#include "../../misc/lis3lv02d/lis3lv02d.h"
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#define DRIVER_NAME "hp_accel"
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@ -73,6 +75,13 @@ static inline void delayed_sysfs_set(struct led_classdev *led_cdev,
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/* HP-specific accelerometer driver ------------------------------------ */
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/* e0 25, e0 26, e0 27, e0 28 are scan codes that the accelerometer with acpi id
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* HPQ6000 sends through the keyboard bus */
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#define ACCEL_1 0x25
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#define ACCEL_2 0x26
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#define ACCEL_3 0x27
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#define ACCEL_4 0x28
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/* For automatic insertion of the module */
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static const struct acpi_device_id lis3lv02d_device_ids[] = {
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{"HPQ0004", 0}, /* HP Mobile Data Protection System PNP */
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@ -294,6 +303,35 @@ static void lis3lv02d_enum_resources(struct acpi_device *device)
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printk(KERN_DEBUG DRIVER_NAME ": Error getting resources\n");
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}
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static bool hp_accel_i8042_filter(unsigned char data, unsigned char str,
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struct serio *port)
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{
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static bool extended;
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if (str & I8042_STR_AUXDATA)
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return false;
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if (data == 0xe0) {
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extended = true;
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return true;
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} else if (unlikely(extended)) {
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extended = false;
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switch (data) {
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case ACCEL_1:
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case ACCEL_2:
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case ACCEL_3:
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case ACCEL_4:
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return true;
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default:
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serio_interrupt(port, 0xe0, 0);
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return false;
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}
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}
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return false;
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}
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static int lis3lv02d_add(struct acpi_device *device)
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{
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int ret;
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@ -326,6 +364,11 @@ static int lis3lv02d_add(struct acpi_device *device)
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if (ret)
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return ret;
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/* filter to remove HPQ6000 accelerometer data
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* from keyboard bus stream */
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if (strstr(dev_name(&device->dev), "HPQ6000"))
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i8042_install_filter(hp_accel_i8042_filter);
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INIT_WORK(&hpled_led.work, delayed_set_status_worker);
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ret = led_classdev_register(NULL, &hpled_led.led_classdev);
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if (ret) {
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@ -343,6 +386,7 @@ static int lis3lv02d_remove(struct acpi_device *device)
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if (!device)
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return -EINVAL;
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i8042_remove_filter(hp_accel_i8042_filter);
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lis3lv02d_joystick_disable(&lis3_dev);
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lis3lv02d_poweroff(&lis3_dev);
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