[PATCH] drivers/input/joystick: convert to dynamic input_dev allocation

Input: convert drivers/input/joystick to dynamic input_dev allocation

This is required for input_dev sysfs integration

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 42 insertions, 28 deletions

diff --git a/drivers/input/joystick/sidewinder.c b/drivers/input/joystick/sidewinder.c
index 9e0353721a35..eaaad45cc750 100644
--- a/drivers/input/joystick/sidewinder.c
+++ b/drivers/input/joystick/sidewinder.c
@@ -113,7 +113,7 @@ static struct {
 
 struct sw {
         struct gameport *gameport;
-        struct input_dev dev[4];
+        struct input_dev *dev[4];
         char name[64];
         char phys[4][32];
         int length;
@@ -301,7 +301,7 @@ static int sw_check(__u64 t)
 static int sw_parse(unsigned char *buf, struct sw *sw)
 {
         int hat, i, j;
-        struct input_dev *dev = sw->dev;
+        struct input_dev *dev;
 
         switch (sw->type) {
 
@@ -310,6 +310,8 @@ static int sw_parse(unsigned char *buf, struct sw *sw)
                         if (sw_check(GB(0,64)) || (hat = (GB(6,1) << 3) | GB(60,3)) > 8)
                                 return -1;
 
+                        dev = sw->dev[0];
+
                         input_report_abs(dev, ABS_X,        (GB( 3,3) << 7) | GB(16,7));
                         input_report_abs(dev, ABS_Y,        (GB( 0,3) << 7) | GB(24,7));
                         input_report_abs(dev, ABS_RZ,       (GB(35,2) << 7) | GB(40,7));
@@ -335,13 +337,13 @@ static int sw_parse(unsigned char *buf, struct sw *sw)
                                 if (sw_parity(GB(i*15,15)))
                                         return -1;
 
-                                input_report_abs(dev + i, ABS_X, GB(i*15+3,1) - GB(i*15+2,1));
-                                input_report_abs(dev + i, ABS_Y, GB(i*15+0,1) - GB(i*15+1,1));
+                                input_report_abs(sw->dev[i], ABS_X, GB(i*15+3,1) - GB(i*15+2,1));
+                                input_report_abs(sw->dev[i], ABS_Y, GB(i*15+0,1) - GB(i*15+1,1));
 
                                 for (j = 0; j < 10; j++)
-                                        input_report_key(dev + i, sw_btn[SW_ID_GP][j], !GB(i*15+j+4,1));
+                                        input_report_key(sw->dev[i], sw_btn[SW_ID_GP][j], !GB(i*15+j+4,1));
 
-                                input_sync(dev + i);
+                                input_sync(sw->dev[i]);
                         }
 
                         return 0;
@@ -352,6 +354,7 @@ static int sw_parse(unsigned char *buf, struct sw *sw)
                         if (!sw_parity(GB(0,48)) || (hat = GB(42,4)) > 8)
                                 return -1;
 
+                        dev = sw->dev[0];
                         input_report_abs(dev, ABS_X,        GB( 9,10));
                         input_report_abs(dev, ABS_Y,        GB(19,10));
                         input_report_abs(dev, ABS_RZ,       GB(36, 6));
@@ -372,6 +375,7 @@ static int sw_parse(unsigned char *buf, struct sw *sw)
                         if (!sw_parity(GB(0,43)) || (hat = GB(28,4)) > 8)
                                 return -1;
 
+                        dev = sw->dev[0];
                         input_report_abs(dev, ABS_X,        GB( 0,10));
                         input_report_abs(dev, ABS_Y,        GB(16,10));
                         input_report_abs(dev, ABS_THROTTLE, GB(32, 6));
@@ -396,6 +400,7 @@ static int sw_parse(unsigned char *buf, struct sw *sw)
                         if (!sw_parity(GB(0,33)))
                                 return -1;
 
+                        dev = sw->dev[0];
                         input_report_abs(dev, ABS_RX,       GB( 0,10));
                         input_report_abs(dev, ABS_RUDDER,   GB(10, 6));
                         input_report_abs(dev, ABS_THROTTLE, GB(16, 6));
@@ -581,6 +586,7 @@ static int sw_guess_mode(unsigned char *buf, int len)
 static int sw_connect(struct gameport *gameport, struct gameport_driver *drv)
 {
         struct sw *sw;
+        struct input_dev *input_dev;
         int i, j, k, l;
         int err;
         unsigned char *buf = NULL;      /* [SW_LENGTH] */
@@ -729,42 +735,50 @@ static int sw_connect(struct gameport *gameport, struct gameport_driver *drv)
                 sprintf(sw->name, "Microsoft SideWinder %s", sw_name[sw->type]);
                 sprintf(sw->phys[i], "%s/input%d", gameport->phys, i);
 
-                sw->dev[i].private = sw;
+                input_dev = input_allocate_device();
+                if (!input_dev) {
+                        err = -ENOMEM;
+                        goto fail3;
+                }
 
-                sw->dev[i].open = sw_open;
-                sw->dev[i].close = sw_close;
+                input_dev->name = sw->name;
+                input_dev->phys = sw->phys[i];
+                input_dev->id.bustype = BUS_GAMEPORT;
+                input_dev->id.vendor = GAMEPORT_ID_VENDOR_MICROSOFT;
+                input_dev->id.product = sw->type;
+                input_dev->id.version = 0x0100;
+                input_dev->cdev.dev = &gameport->dev;
+                input_dev->private = sw;
 
-                sw->dev[i].name = sw->name;
-                sw->dev[i].phys = sw->phys[i];
-                sw->dev[i].id.bustype = BUS_GAMEPORT;
-                sw->dev[i].id.vendor = GAMEPORT_ID_VENDOR_MICROSOFT;
-                sw->dev[i].id.product = sw->type;
-                sw->dev[i].id.version = 0x0100;
+                input_dev->open = sw_open;
+                input_dev->close = sw_close;
 
-                sw->dev[i].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+                input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
 
                 for (j = 0; (bits = sw_bit[sw->type][j]); j++) {
                         code = sw_abs[sw->type][j];
-                        set_bit(code, sw->dev[i].absbit);
-                        sw->dev[i].absmax[code] = (1 << bits) - 1;
-                        sw->dev[i].absmin[code] = (bits == 1) ? -1 : 0;
-                        sw->dev[i].absfuzz[code] = ((bits >> 1) >= 2) ? (1 << ((bits >> 1) - 2)) : 0;
+                        set_bit(code, input_dev->absbit);
+                        input_dev->absmax[code] = (1 << bits) - 1;
+                        input_dev->absmin[code] = (bits == 1) ? -1 : 0;
+                        input_dev->absfuzz[code] = ((bits >> 1) >= 2) ? (1 << ((bits >> 1) - 2)) : 0;
                         if (code != ABS_THROTTLE)
-                                sw->dev[i].absflat[code] = (bits >= 5) ? (1 << (bits - 5)) : 0;
+                                input_dev->absflat[code] = (bits >= 5) ? (1 << (bits - 5)) : 0;
                 }
 
                 for (j = 0; (code = sw_btn[sw->type][j]); j++)
-                        set_bit(code, sw->dev[i].keybit);
+                        set_bit(code, input_dev->keybit);
+
+                dbg("%s%s [%d-bit id %d data %d]\n", sw->name, comment, m, l, k);
 
-                input_register_device(sw->dev + i);
-                printk(KERN_INFO "input: %s%s on %s [%d-bit id %d data %d]\n",
-                        sw->name, comment, gameport->phys, m, l, k);
+                input_register_device(sw->dev[i]);
         }
 
         return 0;
 
-fail2:  gameport_close(gameport);
-fail1:  gameport_set_drvdata(gameport, NULL);
+ fail3: while (--i >= 0)
+                input_unregister_device(sw->dev[i]);
+ fail2: gameport_close(gameport);
+ fail1: gameport_set_drvdata(gameport, NULL);
         kfree(sw);
         kfree(buf);
         kfree(idbuf);
@@ -777,7 +791,7 @@ static void sw_disconnect(struct gameport *gameport)
         int i;
 
         for (i = 0; i < sw->number; i++)
-                input_unregister_device(sw->dev + i);
+                input_unregister_device(sw->dev[i]);
         gameport_close(gameport);
         gameport_set_drvdata(gameport, NULL);
         kfree(sw);