exynos4x12: add nfc package

#

ifeq ($(TARGET_SOC),exynos4x12)

exynos4x12_dirs := liblights

exynos4x12_dirs := liblights nfc

include $(call all-named-subdir-makefiles,$(exynos4x12_dirs))

endif

# Copyright (C) 2011 The Android Open Source Project

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

#      http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)

LOCAL_MODULE := nfc.$(TARGET_BOARD_PLATFORM)

LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/hw

LOCAL_SRC_FILES := nfc_hw.c

LOCAL_SHARED_LIBRARIES := liblog libcutils

LOCAL_MODULE_TAGS := optional

include $(BUILD_SHARED_LIBRARY)

/*

 * Copyright (C) 2011 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

#include <errno.h>

#include <string.h>

#include <hardware/hardware.h>

#include <hardware/nfc.h>

static uint8_t pn544_eedata_settings[][4] = {

    // DIFFERENTIAL_ANTENNA

    // RF Settings

    {0x00,0x9B,0xD1,0x0D} // Tx consumption higher than 0x0D (average 50mA)

    ,{0x00,0x9B,0xD2,0x24} // GSP setting for this threshold

    ,{0x00,0x9B,0xD3,0x0A} // Tx consumption higher than 0x0A (average 40mA)

    ,{0x00,0x9B,0xD4,0x22} // GSP setting for this threshold

    ,{0x00,0x9B,0xD5,0x08} // Tx consumption higher than 0x08 (average 30mA)

    ,{0x00,0x9B,0xD6,0x1E} // GSP setting for this threshold

    ,{0x00,0x9B,0xDD,0x1C} // GSP setting for this threshold

    ,{0x00,0x9B,0x84,0x13} // ANACM2 setting

    ,{0x00,0x99,0x81,0x7F} // ANAVMID setting PCD

    ,{0x00,0x99,0x31,0x70} // ANAVMID setting PICC

    // Enable PBTF

    ,{0x00,0x98,0x00,0x3F} // SECURE_ELEMENT_CONFIGURATION - No Secure Element

    ,{0x00,0x9F,0x09,0x00} // SWP_PBTF_RFU

    ,{0x00,0x9F,0x0A,0x05} // SWP_PBTF_RFLD  --> RFLEVEL Detector for PBTF

    ,{0x00,0x9E,0xD1,0xA1} //

    // Change RF Level Detector ANARFLDWU

    ,{0x00,0x99,0x23,0x00} // Default Value is 0x01

    // Low-power polling

    ,{0x00,0x9E,0x74,0xB0} // Default Value is 0x00, bits 0->2: sensitivity (0==max, 6==min),

                           // bit 3: RFU,

                           // bits 4,5 hybrid low-power: # of low-power polls per regular poll

                           // bit 6: RFU

                           // bit 7: (0 -> disabled, 1 -> enabled)

    ,{0x00,0x9E,0x7D,0xB0} // bits 0->3: RFU,

                           // bits 4,5: # retries after low power detection

                           // 0=1 retry, 1=2 retry, 2=3 retry, 3=4 retry

                           // bit 6: RFU,

                           // bit 7: Enable or disable retry mechanism (0: disable, 1: enable)

    ,{0x00,0x9F,0x28,0x01} // bits 0->7: # of measurements per low-power poll

    //LLC Timer

    ,{0x00,0x9C,0x31,0x00} // Guard host time-out in ms (MSB)

    ,{0x00,0x9C,0x32,0xC8} // Guard host time-out in ms (LSB)

    ,{0x00,0x9C,0x19,0x40} // Max RX retry (PN544=>host?)

    ,{0x00,0x9C,0x1A,0x40} // Max TX retry (PN544=>host?)

    ,{0x00,0x9C,0x0C,0x00} //

    ,{0x00,0x9C,0x0D,0x00} //

    ,{0x00,0x9C,0x12,0x00} //

    ,{0x00,0x9C,0x13,0x00} //

    //WTX for LLCP communication

    ,{0x00,0x98,0xA2,0x0E} // Max value: 14 (default value: 09)

    //SE GPIO

    ,{0x00, 0x98, 0x93, 0x40}

    // Set NFCT ATQA

    ,{0x00, 0x98, 0x7D, 0x02}

    ,{0x00, 0x98, 0x7E, 0x00}

    // Enable CEA detection mechanism

    ,{0x00, 0x9F, 0xC8, 0x01}

    // Set NFC-F poll RC=0x00

    ,{0x00, 0x9F, 0x9A, 0x00}

    // Setting for EMD support for ISO 14443-4 Reader

    ,{0x00,0x9F,0x09,0x00} // 0x00 - Disable EMD support, 0x01 - Enable EMD support

};

static int pn544_close(hw_device_t *dev) {

    free(dev);

    return 0;

}

/*

 * Generic device handling

 */

static int nfc_open(const hw_module_t* module, const char* name,

        hw_device_t** device) {

    if (strcmp(name, NFC_PN544_CONTROLLER) == 0) {

        nfc_pn544_device_t *dev = calloc(1, sizeof(nfc_pn544_device_t));

        dev->common.tag = HARDWARE_DEVICE_TAG;

        dev->common.version = 0;

        dev->common.module = (struct hw_module_t*) module;

        dev->common.close = pn544_close;

        dev->num_eeprom_settings = sizeof(pn544_eedata_settings) / 4;

        dev->eeprom_settings = (uint8_t*)pn544_eedata_settings;

        dev->linktype = PN544_LINK_TYPE_I2C;

        dev->device_node = "/dev/pn544";

        dev->enable_i2c_workaround = 1;

        *device = (hw_device_t*) dev;

        return 0;

    } else {

        return -EINVAL;

    }

}

static struct hw_module_methods_t nfc_module_methods = {

    .open = nfc_open,

};

struct nfc_module_t HAL_MODULE_INFO_SYM = {

    .common = {

        .tag = HARDWARE_MODULE_TAG,

        .version_major = 1,

        .version_minor = 0,

        .id = NFC_HARDWARE_MODULE_ID,

        .name = "Herring NFC HW HAL",

        .author = "The Android Open Source Project",

        .methods = &nfc_module_methods,

    },

};