Input: wistron_btns - switch to using sparse keymap library

The keymap manipulation code was split into a library module,
so let's make us of it.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index a9bb254..d25ecbb 100644 (file)
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -80,6 +80,7 @@ config INPUT_WISTRON_BTNS
        tristate "x86 Wistron laptop button interface"
        depends on X86 && !X86_64
        select INPUT_POLLDEV
+       select INPUT_SPARSEKMAP
        select NEW_LEDS
        select LEDS_CLASS
        select CHECK_SIGNATURE

diff --git a/drivers/input/misc/wistron_btns.c b/drivers/input/misc/wistron_btns.c
index f9d2bc8..38da6ab 100644 (file)
--- a/drivers/input/misc/wistron_btns.c
+++ b/drivers/input/misc/wistron_btns.c
@@ -21,6 +21,7 @@
 #include <linux/dmi.h>
 #include <linux/init.h>
 #include <linux/input-polldev.h>
+#include <linux/input/sparse-keymap.h>
 #include <linux/interrupt.h>
 #include <linux/jiffies.h>
 #include <linux/kernel.h>
@@ -224,19 +225,8 @@ static void bios_set_state(u8 subsys, int enable)
 
 /* Hardware database */
 
-struct key_entry {
-       char type;              /* See KE_* below */
-       u8 code;
-       union {
-               u16 keycode;            /* For KE_KEY */
-               struct {                /* For KE_SW */
-                       u8 code;
-                       u8 value;
-               } sw;
-       };
-};
-
-enum { KE_END, KE_KEY, KE_SW, KE_WIFI, KE_BLUETOOTH };
+#define KE_WIFI                (KE_LAST + 1)
+#define KE_BLUETOOTH   (KE_LAST + 2)
 
 #define FE_MAIL_LED 0x01
 #define FE_WIFI_LED 0x02
@@ -1037,21 +1027,6 @@ static unsigned long jiffies_last_press;
 static bool wifi_enabled;
 static bool bluetooth_enabled;
 
-static void report_key(struct input_dev *dev, unsigned int keycode)
-{
-       input_report_key(dev, keycode, 1);
-       input_sync(dev);
-       input_report_key(dev, keycode, 0);
-       input_sync(dev);
-}
-
-static void report_switch(struct input_dev *dev, unsigned int code, int value)
-{
-       input_report_switch(dev, code, value);
-       input_sync(dev);
-}
-
-
  /* led management */
 static void wistron_mail_led_set(struct led_classdev *led_cdev,
                                enum led_brightness value)
@@ -1128,43 +1103,13 @@ static inline void wistron_led_resume(void)
                led_classdev_resume(&wistron_wifi_led);
 }
 
-static struct key_entry *wistron_get_entry_by_scancode(int code)
-{
-       struct key_entry *key;
-
-       for (key = keymap; key->type != KE_END; key++)
-               if (code == key->code)
-                       return key;
-
-       return NULL;
-}
-
-static struct key_entry *wistron_get_entry_by_keycode(int keycode)
-{
-       struct key_entry *key;
-
-       for (key = keymap; key->type != KE_END; key++)
-               if (key->type == KE_KEY && keycode == key->keycode)
-                       return key;
-
-       return NULL;
-}
-
 static void handle_key(u8 code)
 {
-       const struct key_entry *key = wistron_get_entry_by_scancode(code);
+       const struct key_entry *key =
+               sparse_keymap_entry_from_scancode(wistron_idev->input, code);
 
        if (key) {
                switch (key->type) {
-               case KE_KEY:
-                       report_key(wistron_idev->input, key->keycode);
-                       break;
-
-               case KE_SW:
-                       report_switch(wistron_idev->input,
-                                     key->sw.code, key->sw.value);
-                       break;
-
                case KE_WIFI:
                        if (have_wifi) {
                                wifi_enabled = !wifi_enabled;
@@ -1180,7 +1125,9 @@ static void handle_key(u8 code)
                        break;
 
                default:
-                       BUG();
+                       sparse_keymap_report_entry(wistron_idev->input,
+                                                  key, 1, true);
+                       break;
                }
                jiffies_last_press = jiffies;
        } else
@@ -1220,42 +1167,39 @@ static void wistron_poll(struct input_polled_dev *dev)
                dev->poll_interval = POLL_INTERVAL_DEFAULT;
 }
 
-static int wistron_getkeycode(struct input_dev *dev, int scancode, int *keycode)
+static int __devinit wistron_setup_keymap(struct input_dev *dev,
+                                         struct key_entry *entry)
 {
-       const struct key_entry *key = wistron_get_entry_by_scancode(scancode);
+       switch (entry->type) {
 
-       if (key && key->type == KE_KEY) {
-               *keycode = key->keycode;
-               return 0;
-       }
-
-       return -EINVAL;
-}
+       /* if wifi or bluetooth are not available, create normal keys */
+       case KE_WIFI:
+               if (!have_wifi) {
+                       entry->type = KE_KEY;
+                       entry->keycode = KEY_WLAN;
+               }
+               break;
 
-static int wistron_setkeycode(struct input_dev *dev, int scancode, int keycode)
-{
-       struct key_entry *key;
-       int old_keycode;
-
-       if (keycode < 0 || keycode > KEY_MAX)
-               return -EINVAL;
-
-       key = wistron_get_entry_by_scancode(scancode);
-       if (key && key->type == KE_KEY) {
-               old_keycode = key->keycode;
-               key->keycode = keycode;
-               set_bit(keycode, dev->keybit);
-               if (!wistron_get_entry_by_keycode(old_keycode))
-                       clear_bit(old_keycode, dev->keybit);
-               return 0;
+       case KE_BLUETOOTH:
+               if (!have_bluetooth) {
+                       entry->type = KE_KEY;
+                       entry->keycode = KEY_BLUETOOTH;
+               }
+               break;
+
+       case KE_END:
+               if (entry->code & FE_UNTESTED)
+                       printk(KERN_WARNING "Untested laptop multimedia keys, "
+                               "please report success or failure to "
+                               "eric.piel@tremplin-utc.net\n");
+               break;
        }
 
-       return -EINVAL;
+       return 0;
 }
 
 static int __devinit setup_input_dev(void)
 {
-       struct key_entry *key;
        struct input_dev *input_dev;
        int error;
 
@@ -1273,56 +1217,21 @@ static int __devinit setup_input_dev(void)
        input_dev->id.bustype = BUS_HOST;
        input_dev->dev.parent = &wistron_device->dev;
 
-       input_dev->getkeycode = wistron_getkeycode;
-       input_dev->setkeycode = wistron_setkeycode;
-
-       for (key = keymap; key->type != KE_END; key++) {
-               switch (key->type) {
-                       case KE_KEY:
-                               set_bit(EV_KEY, input_dev->evbit);
-                               set_bit(key->keycode, input_dev->keybit);
-                               break;
-
-                       case KE_SW:
-                               set_bit(EV_SW, input_dev->evbit);
-                               set_bit(key->sw.code, input_dev->swbit);
-                               break;
-
-                       /* if wifi or bluetooth are not available, create normal keys */
-                       case KE_WIFI:
-                               if (!have_wifi) {
-                                       key->type = KE_KEY;
-                                       key->keycode = KEY_WLAN;
-                                       key--;
-                               }
-                               break;
-
-                       case KE_BLUETOOTH:
-                               if (!have_bluetooth) {
-                                       key->type = KE_KEY;
-                                       key->keycode = KEY_BLUETOOTH;
-                                       key--;
-                               }
-                               break;
-
-                       default:
-                               break;
-               }
-       }
-
-       /* reads information flags on KE_END */
-       if (key->code & FE_UNTESTED)
-               printk(KERN_WARNING "Untested laptop multimedia keys, "
-                       "please report success or failure to eric.piel"
-                       "@tremplin-utc.net\n");
+       error = sparse_keymap_setup(input_dev, keymap, wistron_setup_keymap);
+       if (error)
+               goto err_free_dev;
 
        error = input_register_polled_device(wistron_idev);
-       if (error) {
-               input_free_polled_device(wistron_idev);
-               return error;
-       }
+       if (error)
+               goto err_free_keymap;
 
        return 0;
+
+ err_free_keymap:
+       sparse_keymap_free(input_dev);
+ err_free_dev:
+       input_free_polled_device(wistron_idev);
+       return error;
 }
 
 /* Driver core */
@@ -1371,6 +1280,7 @@ static int __devexit wistron_remove(struct platform_device *dev)
 {
        wistron_led_remove();
        input_unregister_polled_device(wistron_idev);
+       sparse_keymap_free(wistron_idev->input);
        input_free_polled_device(wistron_idev);
        bios_detach();