diff options
Diffstat (limited to 'drivers/platform/x86')
| -rw-r--r-- | drivers/platform/x86/msi-laptop.c | 81 |
1 files changed, 79 insertions, 2 deletions
diff --git a/drivers/platform/x86/msi-laptop.c b/drivers/platform/x86/msi-laptop.c index 142d3857931..fb4da28f590 100644 --- a/drivers/platform/x86/msi-laptop.c +++ b/drivers/platform/x86/msi-laptop.c @@ -60,6 +60,8 @@ #include <linux/platform_device.h> #include <linux/rfkill.h> #include <linux/i8042.h> +#include <linux/input.h> +#include <linux/input/sparse-keymap.h> #define MSI_DRIVER_VERSION "0.5" @@ -78,6 +80,9 @@ #define MSI_STANDARD_EC_SCM_LOAD_ADDRESS 0x2d #define MSI_STANDARD_EC_SCM_LOAD_MASK (1 << 0) +#define MSI_STANDARD_EC_TOUCHPAD_ADDRESS 0xe4 +#define MSI_STANDARD_EC_TOUCHPAD_MASK (1 << 4) + static int msi_laptop_resume(struct platform_device *device); #define MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS 0x2f @@ -90,6 +95,14 @@ 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 const struct key_entry msi_laptop_keymap[] = { + {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} }, /* Touch Pad On */ + {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },/* Touch Pad On */ + {KE_END, 0} +}; + +static struct input_dev *msi_laptop_input_dev; + static bool old_ec_model; static int wlan_s, bluetooth_s, threeg_s; static int threeg_exists; @@ -605,6 +618,21 @@ static void msi_update_rfkill(struct work_struct *ignored) } static DECLARE_DELAYED_WORK(msi_rfkill_work, msi_update_rfkill); +static void msi_send_touchpad_key(struct work_struct *ignored) +{ + u8 rdata; + int result; + + result = ec_read(MSI_STANDARD_EC_TOUCHPAD_ADDRESS, &rdata); + if (result < 0) + return; + + sparse_keymap_report_event(msi_laptop_input_dev, + (rdata & MSI_STANDARD_EC_TOUCHPAD_MASK) ? + KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF, 1, true); +} +static DECLARE_DELAYED_WORK(msi_touchpad_work, msi_send_touchpad_key); + static bool msi_laptop_i8042_filter(unsigned char data, unsigned char str, struct serio *port) { @@ -613,12 +641,17 @@ static bool msi_laptop_i8042_filter(unsigned char data, unsigned char str, if (str & 0x20) return false; - /* 0x54 wwan, 0x62 bluetooth, 0x76 wlan*/ + /* 0x54 wwan, 0x62 bluetooth, 0x76 wlan, 0xE4 touchpad toggle*/ if (unlikely(data == 0xe0)) { extended = true; return false; } else if (unlikely(extended)) { + extended = false; switch (data) { + case 0xE4: + schedule_delayed_work(&msi_touchpad_work, + round_jiffies_relative(0.5 * HZ)); + break; case 0x54: case 0x62: case 0x76: @@ -626,7 +659,6 @@ static bool msi_laptop_i8042_filter(unsigned char data, unsigned char str, round_jiffies_relative(0.5 * HZ)); break; } - extended = false; } return false; @@ -731,6 +763,42 @@ static int msi_laptop_resume(struct platform_device *device) return 0; } +static int __init msi_laptop_input_setup(void) +{ + int err; + + msi_laptop_input_dev = input_allocate_device(); + if (!msi_laptop_input_dev) + return -ENOMEM; + + msi_laptop_input_dev->name = "MSI Laptop hotkeys"; + msi_laptop_input_dev->phys = "msi-laptop/input0"; + msi_laptop_input_dev->id.bustype = BUS_HOST; + + err = sparse_keymap_setup(msi_laptop_input_dev, + msi_laptop_keymap, NULL); + if (err) + goto err_free_dev; + + err = input_register_device(msi_laptop_input_dev); + if (err) + goto err_free_keymap; + + return 0; + +err_free_keymap: + sparse_keymap_free(msi_laptop_input_dev); +err_free_dev: + input_free_device(msi_laptop_input_dev); + return err; +} + +static void msi_laptop_input_destroy(void) +{ + sparse_keymap_free(msi_laptop_input_dev); + input_unregister_device(msi_laptop_input_dev); +} + static int load_scm_model_init(struct platform_device *sdev) { u8 data; @@ -759,6 +827,11 @@ static int load_scm_model_init(struct platform_device *sdev) if (result < 0) goto fail_rfkill; + /* setup input device */ + result = msi_laptop_input_setup(); + if (result) + goto fail_input; + result = i8042_install_filter(msi_laptop_i8042_filter); if (result) { printk(KERN_ERR @@ -769,6 +842,9 @@ static int load_scm_model_init(struct platform_device *sdev) return 0; fail_filter: + msi_laptop_input_destroy(); + +fail_input: rfkill_cleanup(); fail_rfkill: @@ -886,6 +962,7 @@ static void __exit msi_cleanup(void) { if (load_scm_model) { i8042_remove_filter(msi_laptop_i8042_filter); + msi_laptop_input_destroy(); cancel_delayed_work_sync(&msi_rfkill_work); rfkill_cleanup(); } |