Input: penmount - add PenMount 6250 support

Add multi touch support for PenMount 6250 touch controller.

Signed-off-by: John Sung <penmount.touch@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/drivers/input/touchscreen/penmount.c b/drivers/input/touchscreen/penmount.c
index 71422b91dc46463d7a8d7cd7a0b217bc5c526c1c..a047850e38b108fc8e5c30647566cc7d8ada3299 100644 (file)
--- a/drivers/input/touchscreen/penmount.c
+++ b/drivers/input/touchscreen/penmount.c
@@ -37,6 +37,7 @@ MODULE_LICENSE("GPL");
 #define        PM_MAX_LENGTH   6
 #define        PM_MAX_MTSLOT   16
 #define        PM_3000_MTSLOT  2
+#define        PM_6250_MTSLOT  12
 
 /*
  * Multi-touch slot
@@ -150,6 +151,21 @@ static irqreturn_t pm_interrupt(struct serio *serio,
                        }
                }
                break;
+
+       case 0x6250:
+               if ((pm->data[0] & 0xb0) == 0x30) {
+                       if (pm->packetsize == ++pm->idx) {
+                               if (pm_checkpacket(pm->data)) {
+                                       int slotnum = pm->data[0] & 0x0f;
+                                       pm->slots[slotnum].active = pm->data[0] & 0x40;
+                                       pm->slots[slotnum].x = pm->data[2] * 256 + pm->data[1];
+                                       pm->slots[slotnum].y = pm->data[4] * 256 + pm->data[3];
+                                       pm_mtevent(pm, dev);
+                               }
+                               pm->idx = 0;
+                       }
+               }
+               break;
        }
 
        return IRQ_HANDLED;
@@ -227,6 +243,13 @@ static int pm_connect(struct serio *serio, struct serio_driver *drv)
                max_x = max_y = 0x7ff;
                pm->maxcontacts = PM_3000_MTSLOT;
                break;
+
+       case 3:
+               pm->packetsize = 6;
+               input_dev->id.product = 0x6250;
+               max_x = max_y = 0x3ff;
+               pm->maxcontacts = PM_6250_MTSLOT;
+               break;
        }
 
        input_set_abs_params(pm->dev, ABS_X, 0, max_x, 0, 0);