common: Add OSS consumerir HAL

Change-Id: I9a48eb9c48a8b726f48ca6ce8c41d4e1b02036f5

consumerir/Android.mk

@@ -0,0 +1,28 @@
+# Copyright (C) 2013 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_C_INCLUDES += $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ/usr/include
+LOCAL_ADDITIONAL_DEPENDENCIES += $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ/usr
+
+LOCAL_MODULE := consumerir.$(TARGET_BOARD_PLATFORM)
+LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_SRC_FILES := consumerir.c
+LOCAL_SHARED_LIBRARIES := liblog libcutils
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_SHARED_LIBRARY)

consumerir/consumerir.c

@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+#define LOG_TAG "ConsumerIrLirc"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <malloc.h>
+#include <string.h>
+#include <stdlib.h>
+#include <linux/lirc.h>
+#include <cutils/log.h>
+#include <cutils/properties.h>
+#include <hardware/hardware.h>
+#include <hardware/consumerir.h>
+
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
+
+static const consumerir_freq_range_t consumerir_freqs[] = {
+    {.min = 30000, .max = 60000},
+};
+
+static int open_lircdev(void)
+{
+    char value[PROPERTY_VALUE_MAX] = {'\0'};
+    property_get("ro.lirc.dev", value, "/dev/lirc0");
+    int fd = open(value, O_RDWR);
+    if (fd < 0) {
+        ALOGE("failed to open %s error %d", value, fd);
+        return fd;
+    }
+
+    return fd;
+}
+
+static int consumerir_transmit(struct consumerir_device *dev __unused,
+   int carrier_freq, const int pattern[], int pattern_len)
+{
+    int total_time = 0;
+    long i;
+    int fd;
+    int rc;
+    char value[PROPERTY_VALUE_MAX] = {'\0'};
+    int duty_cycle;
+
+    fd = open_lircdev();
+    if (fd < 0) {
+        return fd;
+    }
+
+    rc = ioctl(fd, LIRC_SET_SEND_CARRIER, &carrier_freq);
+    if (rc < 0) {
+        ALOGE("failed to set carrier %d error %d", carrier_freq, rc);
+        goto out_close;
+    }
+
+    property_get("ro.lirc.duty_cycle", value, "33");
+    duty_cycle = atoi(value);
+    rc = ioctl(fd, LIRC_SET_SEND_DUTY_CYCLE, &duty_cycle);
+    if (rc < 0) {
+        ALOGE("failed to set duty cycle %d error %d", duty_cycle, rc);
+        goto out_close;
+    }
+
+    if (pattern_len&1) {
+        rc = write(fd, pattern, sizeof(*pattern)*pattern_len);
+    }
+    else {
+        rc = write(fd, pattern, sizeof(*pattern)*(pattern_len-1));
+        usleep(pattern[pattern_len-1]);
+    }
+    if (rc < 0) {
+        ALOGE("failed to write pattern %d error %d", pattern_len, rc);
+        goto out_close;
+    }
+
+    rc = 0;
+
+out_close:
+    close(fd);
+
+    return rc;
+}
+
+static int consumerir_get_num_carrier_freqs(struct consumerir_device *dev __unused)
+{
+    return ARRAY_SIZE(consumerir_freqs);
+}
+
+static int consumerir_get_carrier_freqs(struct consumerir_device *dev __unused,
+    size_t len, consumerir_freq_range_t *ranges)
+{
+    size_t to_copy = ARRAY_SIZE(consumerir_freqs);
+
+    to_copy = len < to_copy ? len : to_copy;
+    memcpy(ranges, consumerir_freqs, to_copy * sizeof(consumerir_freq_range_t));
+    return to_copy;
+}
+
+static int consumerir_close(hw_device_t *dev)
+{
+    free(dev);
+    return 0;
+}
+
+/*
+ * Generic device handling
+ */
+static int consumerir_open(const hw_module_t* module, const char* name,
+        hw_device_t** device)
+{
+    if (strcmp(name, CONSUMERIR_TRANSMITTER) != 0) {
+        return -EINVAL;
+    }
+    if (device == NULL) {
+        ALOGE("NULL device on open");
+        return -EINVAL;
+    }
+
+    int lircfd = open_lircdev();
+    if (lircfd < 0) {
+        return lircfd;
+    }
+    close(lircfd);
+
+    consumerir_device_t *dev = malloc(sizeof(consumerir_device_t));
+    memset(dev, 0, sizeof(consumerir_device_t));
+
+    dev->common.tag = HARDWARE_DEVICE_TAG;
+    dev->common.version = 0;
+    dev->common.module = (struct hw_module_t*) module;
+    dev->common.close = consumerir_close;
+
+    dev->transmit = consumerir_transmit;
+    dev->get_num_carrier_freqs = consumerir_get_num_carrier_freqs;
+    dev->get_carrier_freqs = consumerir_get_carrier_freqs;
+
+    *device = (hw_device_t*) dev;
+    return 0;
+}
+
+static struct hw_module_methods_t consumerir_module_methods = {
+    .open = consumerir_open,
+};
+
+consumerir_module_t HAL_MODULE_INFO_SYM = {
+    .common = {
+        .tag                = HARDWARE_MODULE_TAG,
+        .module_api_version = CONSUMERIR_MODULE_API_VERSION_1_0,
+        .hal_api_version    = HARDWARE_HAL_API_VERSION,
+        .id                 = CONSUMERIR_HARDWARE_MODULE_ID,
+        .name               = "LIRC IR HAL",
+        .author             = "Xiaomi Corporation",
+        .methods            = &consumerir_module_methods,
+    },
+};