HID: move usage input mapping to hid.h

This mapping are currently used on 2 placces and will be needed by more
quirk drivers, so move them to hid.h to allow them to use it.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

3 files changed, 103 insertions, 46 deletions

diff --git a/drivers/hid/hid-input-quirks.c b/drivers/hid/hid-input-quirks.c
index 16feea014494..8ec64b74d38d 100644
--- a/drivers/hid/hid-input-quirks.c
+++ b/drivers/hid/hid-input-quirks.c
@@ -16,16 +16,14 @@
 #include <linux/input.h>
 #include <linux/hid.h>
 
-#define map_abs(c)      do { usage->code = c; usage->type = EV_ABS; *bit = input->absbit; *max = ABS_MAX; } while (0)
-#define map_rel(c)      do { usage->code = c; usage->type = EV_REL; *bit = input->relbit; *max = REL_MAX; } while (0)
-#define map_key(c)      do { usage->code = c; usage->type = EV_KEY; *bit = input->keybit; *max = KEY_MAX; } while (0)
-#define map_led(c)      do { usage->code = c; usage->type = EV_LED; *bit = input->ledbit; *max = LED_MAX; } while (0)
+#define map_rel(c)      hid_map_usage(hidinput, usage, bit, max, EV_REL, (c))
+#define map_key(c)      hid_map_usage(hidinput, usage, bit, max, EV_KEY, (c))
 
-#define map_abs_clear(c)        do { map_abs(c); clear_bit(c, *bit); } while (0)
-#define map_key_clear(c)        do { map_key(c); clear_bit(c, *bit); } while (0)
+#define map_key_clear(c)        hid_map_usage_clear(hidinput, usage, bit, \
+                max, EV_KEY, (c))
 
-static int quirk_belkin_wkbd(struct hid_usage *usage, struct input_dev *input,
-                              unsigned long **bit, int *max)
+static int quirk_belkin_wkbd(struct hid_usage *usage,
+                struct hid_input *hidinput, unsigned long **bit, int *max)
 {
         if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
                 return 0;
@@ -40,8 +38,8 @@ static int quirk_belkin_wkbd(struct hid_usage *usage, struct input_dev *input,
         return 1;
 }
 
-static int quirk_cherry_cymotion(struct hid_usage *usage, struct input_dev *input,
-                              unsigned long **bit, int *max)
+static int quirk_cherry_cymotion(struct hid_usage *usage,
+                struct hid_input *hidinput, unsigned long **bit, int *max)
 {
         if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
                 return 0;
@@ -56,13 +54,13 @@ static int quirk_cherry_cymotion(struct hid_usage *usage, struct input_dev *inpu
         return 1;
 }
 
-static int quirk_logitech_ultrax_remote(struct hid_usage *usage, struct input_dev *input,
-                              unsigned long **bit, int *max)
+static int quirk_logitech_ultrax_remote(struct hid_usage *usage,
+                struct hid_input *hidinput, unsigned long **bit, int *max)
 {
         if ((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR)
                 return 0;
 
-        set_bit(EV_REP, input->evbit);
+        set_bit(EV_REP, hidinput->input->evbit);
         switch(usage->hid & HID_USAGE) {
                 /* Reported on Logitech Ultra X Media Remote */
                 case 0x004: map_key_clear(KEY_AGAIN);           break;
@@ -89,13 +87,13 @@ static int quirk_logitech_ultrax_remote(struct hid_usage *usage, struct input_de
         return 1;
 }
 
-static int quirk_gyration_remote(struct hid_usage *usage, struct input_dev *input,
-                              unsigned long **bit, int *max)
+static int quirk_gyration_remote(struct hid_usage *usage,
+                struct hid_input *hidinput, unsigned long **bit, int *max)
 {
         if ((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR)
                 return 0;
 
-        set_bit(EV_REP, input->evbit);
+        set_bit(EV_REP, hidinput->input->evbit);
         switch(usage->hid & HID_USAGE) {
                 /* Reported on Gyration MCE Remote */
                 case 0x00d: map_key_clear(KEY_HOME);            break;
@@ -112,13 +110,13 @@ static int quirk_gyration_remote(struct hid_usage *usage, struct input_dev *inpu
         return 1;
 }
 
-static int quirk_chicony_tactical_pad(struct hid_usage *usage, struct input_dev *input,
-                              unsigned long **bit, int *max)
+static int quirk_chicony_tactical_pad(struct hid_usage *usage,
+                struct hid_input *hidinput, unsigned long **bit, int *max)
 {
         if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
                 return 0;
 
-        set_bit(EV_REP, input->evbit);
+        set_bit(EV_REP, hidinput->input->evbit);
         switch (usage->hid & HID_USAGE) {
                 case 0xff01: map_key_clear(BTN_1);              break;
                 case 0xff02: map_key_clear(BTN_2);              break;
@@ -137,9 +135,11 @@ static int quirk_chicony_tactical_pad(struct hid_usage *usage, struct input_dev
         return 1;
 }
 
-static int quirk_microsoft_ergonomy_kb(struct hid_usage *usage, struct input_dev *input,
-                              unsigned long **bit, int *max)
+static int quirk_microsoft_ergonomy_kb(struct hid_usage *usage,
+                struct hid_input *hidinput, unsigned long **bit, int *max)
 {
+        struct input_dev *input = hidinput->input;
+
         if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
                 return 0;
 
@@ -160,13 +160,13 @@ static int quirk_microsoft_ergonomy_kb(struct hid_usage *usage, struct input_dev
         return 1;
 }
 
-static int quirk_microsoft_presenter_8k(struct hid_usage *usage, struct input_dev *input,
-                              unsigned long **bit, int *max)
+static int quirk_microsoft_presenter_8k(struct hid_usage *usage,
+                struct hid_input *hidinput, unsigned long **bit, int *max)
 {
         if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
                 return 0;
 
-        set_bit(EV_REP, input->evbit);
+        set_bit(EV_REP, hidinput->input->evbit);
         switch(usage->hid & HID_USAGE) {
                 case 0xfd08: map_key_clear(KEY_FORWARD);        break;
                 case 0xfd09: map_key_clear(KEY_BACK);           break;
@@ -179,8 +179,8 @@ static int quirk_microsoft_presenter_8k(struct hid_usage *usage, struct input_de
         return 1;
 }
 
-static int quirk_petalynx_remote(struct hid_usage *usage, struct input_dev *input,
-                              unsigned long **bit, int *max)
+static int quirk_petalynx_remote(struct hid_usage *usage,
+                struct hid_input *hidinput, unsigned long **bit, int *max)
 {
         if (((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR) &&
                         ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER))
@@ -207,8 +207,8 @@ static int quirk_petalynx_remote(struct hid_usage *usage, struct input_dev *inpu
         return 1;
 }
 
-static int quirk_logitech_wireless(struct hid_usage *usage, struct input_dev *input,
-                              unsigned long **bit, int *max)
+static int quirk_logitech_wireless(struct hid_usage *usage,
+                struct hid_input *hidinput, unsigned long **bit, int *max)
 {
         if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
                 return 0;
@@ -259,8 +259,8 @@ static int quirk_logitech_wireless(struct hid_usage *usage, struct input_dev *in
         return 1;
 }
 
-static int quirk_cherry_genius_29e(struct hid_usage *usage, struct input_dev *input,
-                              unsigned long **bit, int *max)
+static int quirk_cherry_genius_29e(struct hid_usage *usage,
+                struct hid_input *hidinput, unsigned long **bit, int *max)
 {
         if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
                 return 0;
@@ -277,7 +277,7 @@ static int quirk_cherry_genius_29e(struct hid_usage *usage, struct input_dev *in
         return 1;
 }
 
-static int quirk_btc_8193(struct hid_usage *usage, struct input_dev *input,
+static int quirk_btc_8193(struct hid_usage *usage, struct hid_input *hidinput,
                               unsigned long **bit, int *max)
 {
         if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
@@ -299,8 +299,8 @@ static int quirk_btc_8193(struct hid_usage *usage, struct input_dev *input,
         return 1;
 }
 
-static int quirk_sunplus_wdesktop(struct hid_usage *usage, struct input_dev *input,
-                              unsigned long **bit, int *max)
+static int quirk_sunplus_wdesktop(struct hid_usage *usage,
+                struct hid_input *hidinput, unsigned long **bit, int *max)
 {
         if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
                 return 0;
@@ -353,7 +353,8 @@ static int quirk_sunplus_wdesktop(struct hid_usage *usage, struct input_dev *inp
 static const struct hid_input_blacklist {
         __u16 idVendor;
         __u16 idProduct;
-        int (*quirk)(struct hid_usage *, struct input_dev *, unsigned long **, int *);
+        int (*quirk)(struct hid_usage *, struct hid_input *, unsigned long **,
+                        int *);
 } hid_input_blacklist[] = {
         { VENDOR_ID_BELKIN, DEVICE_ID_BELKIN_WIRELESS_KEYBOARD, quirk_belkin_wkbd },
 
@@ -385,16 +386,16 @@ static const struct hid_input_blacklist {
 };
 
 int hidinput_mapping_quirks(struct hid_usage *usage, 
-                                   struct input_dev *input, 
-                                   unsigned long **bit, int *max)
+                struct hid_input *hi, unsigned long **bit, int *max)
 {
-        struct hid_device *device = input_get_drvdata(input);
+        struct hid_device *device = input_get_drvdata(hi->input);
         int i = 0;
         
         while (hid_input_blacklist[i].quirk) {
                 if (hid_input_blacklist[i].idVendor == device->vendor &&
                                 hid_input_blacklist[i].idProduct == device->product)
-                        return hid_input_blacklist[i].quirk(usage, input, bit, max);
+                        return hid_input_blacklist[i].quirk(usage, hi, bit,
+                                        max);
                 i++;
         }
         return 0;
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 9fa7239ab310..be2c7a8ad254 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -76,13 +76,15 @@ static const struct {
         __s32 y;
 }  hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
 
-#define map_abs(c)      do { usage->code = c; usage->type = EV_ABS; bit = input->absbit; max = ABS_MAX; } while (0)
-#define map_rel(c)      do { usage->code = c; usage->type = EV_REL; bit = input->relbit; max = REL_MAX; } while (0)
-#define map_key(c)      do { usage->code = c; usage->type = EV_KEY; bit = input->keybit; max = KEY_MAX; } while (0)
-#define map_led(c)      do { usage->code = c; usage->type = EV_LED; bit = input->ledbit; max = LED_MAX; } while (0)
+#define map_abs(c)      hid_map_usage(hidinput, usage, &bit, &max, EV_ABS, (c))
+#define map_rel(c)      hid_map_usage(hidinput, usage, &bit, &max, EV_REL, (c))
+#define map_key(c)      hid_map_usage(hidinput, usage, &bit, &max, EV_KEY, (c))
+#define map_led(c)      hid_map_usage(hidinput, usage, &bit, &max, EV_LED, (c))
 
-#define map_abs_clear(c)        do { map_abs(c); clear_bit(c, bit); } while (0)
-#define map_key_clear(c)        do { map_key(c); clear_bit(c, bit); } while (0)
+#define map_abs_clear(c)        hid_map_usage_clear(hidinput, usage, &bit, \
+                &max, EV_ABS, (c))
+#define map_key_clear(c)        hid_map_usage_clear(hidinput, usage, &bit, \
+                &max, EV_KEY, (c))
 
 #ifdef CONFIG_USB_HIDINPUT_POWERBOOK
 
@@ -386,7 +388,7 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
         }
 
         /* handle input mappings for quirky devices */
-        ret = hidinput_mapping_quirks(usage, input, &bit, &max);
+        ret = hidinput_mapping_quirks(usage, hidinput, &bit, &max);
         if (ret)
                 goto mapped;
 
diff --git a/include/linux/hid.h b/include/linux/hid.h
index ac2584fe65c5..986c0e7ea66a 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -655,7 +655,8 @@ extern void hidinput_disconnect(struct hid_device *);
 int hid_set_field(struct hid_field *, unsigned, __s32);
 int hid_input_report(struct hid_device *, int type, u8 *, int, int);
 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field);
-int hidinput_mapping_quirks(struct hid_usage *, struct input_dev *, unsigned long **, int *);
+int hidinput_mapping_quirks(struct hid_usage *, struct hid_input *,
+                unsigned long **, int *);
 int hidinput_event_quirks(struct hid_device *, struct hid_field *, struct hid_usage *, __s32);
 int hidinput_apple_event(struct hid_device *, struct input_dev *, struct hid_usage *, __s32);
 void hid_output_report(struct hid_report *report, __u8 *data);
@@ -663,6 +664,59 @@ struct hid_device *hid_allocate_device(void);
 int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size);
 
 /**
+ * hid_map_usage - map usage input bits
+ *
+ * @hidinput: hidinput which we are interested in
+ * @usage: usage to fill in
+ * @bit: pointer to input->{}bit (out parameter)
+ * @max: maximal valid usage->code to consider later (out parameter)
+ * @type: input event type (EV_KEY, EV_REL, ...)
+ * @c: code which corresponds to this usage and type
+ */
+static inline void hid_map_usage(struct hid_input *hidinput,
+                struct hid_usage *usage, unsigned long **bit, int *max,
+                __u8 type, __u16 c)
+{
+        struct input_dev *input = hidinput->input;
+
+        usage->type = type;
+        usage->code = c;
+
+        switch (type) {
+        case EV_ABS:
+                *bit = input->absbit;
+                *max = ABS_MAX;
+                break;
+        case EV_REL:
+                *bit = input->relbit;
+                *max = REL_MAX;
+                break;
+        case EV_KEY:
+                *bit = input->keybit;
+                *max = KEY_MAX;
+                break;
+        case EV_LED:
+                *bit = input->ledbit;
+                *max = LED_MAX;
+                break;
+        }
+}
+
+/**
+ * hid_map_usage_clear - map usage input bits and clear the input bit
+ *
+ * The same as hid_map_usage, except the @c bit is also cleared in supported
+ * bits (@bit).
+ */
+static inline void hid_map_usage_clear(struct hid_input *hidinput,
+                struct hid_usage *usage, unsigned long **bit, int *max,
+                __u8 type, __u16 c)
+{
+        hid_map_usage(hidinput, usage, bit, max, type, c);
+        clear_bit(c, *bit);
+}
+
+/**
  * hid_parse - parse HW reports
  *
  * @hdev: hid device