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>

1 files changed, 23 insertions, 0 deletions

diff --git a/drivers/input/touchscreen/penmount.c b/drivers/input/touchscreen/penmount.c
index 71422b91dc46..a047850e38b1 100644
--- 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);