Implment configuration reading

Author: lazd

VoodooI2CGoodix/VoodooI2CGoodixTouchDriver.cpp

@@ -345,15 +345,57 @@ IOReturn VoodooI2CGoodixTouchDriver::goodix_read_version(struct goodix_ts_data *
     return retVal;
 }
 
-IOReturn VoodooI2CGoodixTouchDriver::goodix_configure_dev(struct goodix_ts_data *ts) {
+void VoodooI2CGoodixTouchDriver::goodix_read_config(struct goodix_ts_data *ts) {
+    UInt8 config[GOODIX_CONFIG_MAX_LENGTH];
     IOReturn retVal = kIOReturnSuccess;
 
-    return retVal;
+    retVal = goodix_read_reg(ts->chip->config_addr, config, ts->chip->config_len);
+
+    if (retVal != kIOReturnSuccess) {
+        IOLog("%s::Error reading config (%d), using defaults\n", getName(), retVal);
+        ts->abs_x_max = GOODIX_MAX_WIDTH;
+        ts->abs_y_max = GOODIX_MAX_HEIGHT;
+//        if (ts->swapped_x_y)
+//            swap(ts->abs_x_max, ts->abs_y_max);
+        ts->int_trigger_type = GOODIX_INT_TRIGGER;
+        ts->max_touch_num = GOODIX_MAX_CONTACTS;
+        return;
+    }
+
+    ts->abs_x_max = get_unaligned_le16(&config[RESOLUTION_LOC]);
+    ts->abs_y_max = get_unaligned_le16(&config[RESOLUTION_LOC + 2]);
+//    if (ts->swapped_x_y)
+//        swap(ts->abs_x_max, ts->abs_y_max);
+    ts->int_trigger_type = config[TRIGGER_LOC] & 0x03;
+    ts->max_touch_num = config[MAX_CONTACTS_LOC] & 0x0f;
+    if (!ts->abs_x_max || !ts->abs_y_max || !ts->max_touch_num) {
+        IOLog("%s::Invalid config (%d), using defaults\n", getName(), retVal);
+        ts->abs_x_max = GOODIX_MAX_WIDTH;
+        ts->abs_y_max = GOODIX_MAX_HEIGHT;
+//        if (ts->swapped_x_y)
+//            swap(ts->abs_x_max, ts->abs_y_max);
+        ts->max_touch_num = GOODIX_MAX_CONTACTS;
+    }
+
+    IOLog("%s::Config read successfully\n", getName());
+
+    IOLog("%s::ts->abs_x_max = %d\n", getName(), ts->abs_x_max);
+    IOLog("%s::ts->abs_y_max = %d\n", getName(), ts->abs_y_max);
+    IOLog("%s::ts->int_trigger_type = %d\n", getName(), ts->int_trigger_type);
+    IOLog("%s::ts->max_touch_num = %d\n", getName(), ts->max_touch_num);
+
+//    if (dmi_check_system(rotated_screen)) {
+//        ts->inverted_x = true;
+//        ts->inverted_y = true;
+//        IOLog("%s::Applying '180 degrees rotated screen' quirk\n");
+//    }
 }
 
-IOReturn VoodooI2CGoodixTouchDriver::goodix_read_config(struct goodix_ts_data *ts) {
+IOReturn VoodooI2CGoodixTouchDriver::goodix_configure_dev(struct goodix_ts_data *ts) {
     IOReturn retVal = kIOReturnSuccess;
 
+    goodix_read_config(ts);
+
     return retVal;
 }
 

VoodooI2CGoodix/VoodooI2CGoodixTouchDriver.hpp

@@ -108,7 +108,7 @@ class VoodooI2CGoodixTouchDriver : public IOService {
      *
      * @ts: our goodix_ts_data pointer
      */
-    IOReturn goodix_read_config(struct goodix_ts_data *ts);
+    void goodix_read_config(struct goodix_ts_data *ts);
 };
 
 #endif /* VoodooI2CGoodixTouchDriver_hpp */

VoodooI2CGoodix/goodix.h

@@ -12,6 +12,16 @@
 #define GOODIX_CONFIG_911_LENGTH    186
 #define GOODIX_CONFIG_967_LENGTH    228
 
+#define GOODIX_MAX_HEIGHT        4096
+#define GOODIX_MAX_WIDTH        4096
+#define GOODIX_INT_TRIGGER        1
+#define GOODIX_CONTACT_SIZE        8
+#define GOODIX_MAX_CONTACTS        10
+
+#define RESOLUTION_LOC        1
+#define MAX_CONTACTS_LOC    5
+#define TRIGGER_LOC        6
+
 #define msleep(x)               IOSleep(x)
 #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
 #define usleep_range(min, max)    msleep(DIV_ROUND_UP(min, 1000))