DevI2C wrappers for Javascript.
Dependents: ST_SENSOR_JS MQTT_JS
DevI2C-js.cpp@0:948fd0e96aaa, 2017-10-25 (annotated)
- Committer:
- akhtar.syedzeeshan@gmail.com
- Date:
- Wed Oct 25 13:45:51 2017 +0200
- Revision:
- 0:948fd0e96aaa
- Child:
- 1:9004b187e772
Implemented DevI2C for Javascript
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 1 | /* Copyright JS Foundation and other contributors, http://js.foundation |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 2 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 3 | * Licensed under the Apache License, Version 2.0 (the "License"); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 4 | * you may not use this file except in compliance with the License. |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 5 | * You may obtain a copy of the License at |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 6 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 7 | * http://www.apache.org/licenses/LICENSE-2.0 |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 8 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 9 | * Unless required by applicable law or agreed to in writing, software |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 10 | * distributed under the License is distributed on an "AS IS" BASIS |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 11 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 12 | * See the License for the specific language governing permissions and |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 13 | * limitations under the License. |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 14 | */ |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 15 | #include "jerryscript-mbed-util/logging.h" |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 16 | #include "jerryscript-mbed-library-registry/wrap_tools.h" |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 17 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 18 | #include "DevI2C.h" |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 19 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 20 | #include "mbed.h" |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 21 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 22 | /** |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 23 | * DevI2C#destructor |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 24 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 25 | * Called if/when the DevI2C object is GC'ed. |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 26 | */ |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 27 | void NAME_FOR_CLASS_NATIVE_DESTRUCTOR(DevI2C) (void *void_ptr) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 28 | delete static_cast<DevI2C*>(void_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 29 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 30 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 31 | /** |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 32 | * Type infomation of the native DevI2C pointer |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 33 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 34 | * Set DevI2C#destructor as the free callback. |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 35 | */ |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 36 | static const jerry_object_native_info_t native_obj_type_info = { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 37 | .free_cb = NAME_FOR_CLASS_NATIVE_DESTRUCTOR(DevI2C) |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 38 | }; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 39 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 40 | /** |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 41 | * DevI2C#frequency (native JavaScript method) |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 42 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 43 | * Set the frequency of the DevI2C bus. |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 44 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 45 | * @param frequency New DevI2C Frequency |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 46 | */ |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 47 | DECLARE_CLASS_FUNCTION(DevI2C, frequency) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 48 | CHECK_ARGUMENT_COUNT(DevI2C, frequency, (args_count == 1)); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 49 | CHECK_ARGUMENT_TYPE_ALWAYS(DevI2C, frequency, 0, number); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 50 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 51 | // Unwrap native DevI2C object |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 52 | void *void_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 53 | const jerry_object_native_info_t *type_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 54 | bool has_ptr = jerry_get_object_native_pointer(this_obj, &void_ptr, &type_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 55 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 56 | if (!has_ptr || type_ptr != &native_obj_type_info) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 57 | return jerry_create_error(JERRY_ERROR_TYPE, |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 58 | (const jerry_char_t *) "Failed to get native DevI2C pointer"); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 59 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 60 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 61 | I2C *native_ptr = static_cast<I2C*>(void_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 62 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 63 | int hz = jerry_get_number_value(args[0]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 64 | native_ptr->frequency(hz); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 65 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 66 | return jerry_create_undefined(); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 67 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 68 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 69 | /** |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 70 | * DevI2C#read (native JavaScript method) |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 71 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 72 | * Read data from the DevI2C bus. |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 73 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 74 | * @overload DevI2C#read(int) |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 75 | * Read a single byte from the DevI2C bus |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 76 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 77 | * @param ack indicates if the byte is to be acknowledged (1 => acknowledge) |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 78 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 79 | * @returns array: Data read from the DevI2C bus |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 80 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 81 | * @overload DevI2C#read(int, array, int) |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 82 | * Read a series of bytes from the DevI2C bus |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 83 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 84 | * @param address DevI2C address to read from |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 85 | * @param data Array to read into |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 86 | * @param length Length of data to read |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 87 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 88 | * @returns array: Data read from the DevI2C bus |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 89 | */ |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 90 | DECLARE_CLASS_FUNCTION(DevI2C, read) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 91 | CHECK_ARGUMENT_COUNT(DevI2C, read, (args_count == 1 || args_count == 3 || args_count == 4)); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 92 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 93 | if (args_count == 1) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 94 | CHECK_ARGUMENT_TYPE_ALWAYS(DevI2C, read, 0, number); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 95 | void *void_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 96 | const jerry_object_native_info_t *type_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 97 | bool has_ptr = jerry_get_object_native_pointer(this_obj, &void_ptr, &type_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 98 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 99 | if (!has_ptr || type_ptr != &native_obj_type_info) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 100 | return jerry_create_error(JERRY_ERROR_TYPE, |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 101 | (const jerry_char_t *) "Failed to get native DevI2C pointer"); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 102 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 103 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 104 | I2C *native_ptr = static_cast<I2C*>(void_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 105 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 106 | int data = jerry_get_number_value(args[0]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 107 | int result = native_ptr->read(data); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 108 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 109 | return jerry_create_number(result); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 110 | } else { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 111 | CHECK_ARGUMENT_TYPE_ALWAYS(DevI2C, read, 0, number); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 112 | CHECK_ARGUMENT_TYPE_ALWAYS(DevI2C, read, 1, array); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 113 | CHECK_ARGUMENT_TYPE_ALWAYS(DevI2C, read, 2, number); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 114 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 115 | CHECK_ARGUMENT_TYPE_ON_CONDITION(DevI2C, read, 3, boolean, (args_count == 4)); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 116 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 117 | void *void_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 118 | const jerry_object_native_info_t *type_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 119 | bool has_ptr = jerry_get_object_native_pointer(this_obj, &void_ptr, &type_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 120 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 121 | if (!has_ptr || type_ptr != &native_obj_type_info) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 122 | return jerry_create_error(JERRY_ERROR_TYPE, |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 123 | (const jerry_char_t *) "Failed to get native DevI2C pointer"); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 124 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 125 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 126 | I2C *native_ptr = static_cast<I2C*>(void_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 127 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 128 | const uint32_t data_len = jerry_get_array_length(args[1]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 129 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 130 | int address = jerry_get_number_value(args[0]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 131 | int length = jerry_get_number_value(args[2]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 132 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 133 | char *data = new char[data_len]; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 134 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 135 | bool repeated = false; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 136 | if (args_count == 4) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 137 | repeated = jerry_get_boolean_value(args[3]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 138 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 139 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 140 | int result = native_ptr->read(address, data, length, repeated); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 141 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 142 | jerry_value_t out_array = jerry_create_array(data_len); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 143 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 144 | for (uint32_t i = 0; i < data_len; i++) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 145 | jerry_value_t val = jerry_create_number(double(data[i])); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 146 | jerry_set_property_by_index(out_array, i, val); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 147 | jerry_release_value(val); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 148 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 149 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 150 | delete[] data; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 151 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 152 | if (result == 0) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 153 | // ACK |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 154 | return out_array; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 155 | } else { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 156 | // NACK |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 157 | const char *error_msg = "NACK received from DevI2C bus"; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 158 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 159 | jerry_release_value(out_array); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 160 | return jerry_create_error(JERRY_ERROR_COMMON, reinterpret_cast<const jerry_char_t *>(error_msg)); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 161 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 162 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 163 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 164 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 165 | /** |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 166 | * DevI2C#write (native JavaScript method) |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 167 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 168 | * @overload DevI2C#write(int) |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 169 | * Write a single byte to the DevI2C bus |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 170 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 171 | * @param data Data byte to write to the DevI2C bus |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 172 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 173 | * @returns 1 on success, 0 on failure |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 174 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 175 | * @overload DevI2C#write(int, array, int, bool) |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 176 | * Write an array of data to a certain address on the DevI2C bus |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 177 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 178 | * @param address 8-bit DevI2C slave address |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 179 | * @param data Array of bytes to send |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 180 | * @param length Length of data to write |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 181 | * @param repeated (optional) If true, do not send stop at end. |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 182 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 183 | * @returns 0 on success, non-0 on failure |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 184 | */ |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 185 | DECLARE_CLASS_FUNCTION(DevI2C, write) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 186 | CHECK_ARGUMENT_COUNT(DevI2C, write, (args_count == 1 || args_count == 3 || args_count == 4)); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 187 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 188 | if (args_count == 1) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 189 | CHECK_ARGUMENT_TYPE_ALWAYS(DevI2C, write, 0, number); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 190 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 191 | // Extract native DevI2C object |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 192 | void *void_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 193 | const jerry_object_native_info_t *type_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 194 | bool has_ptr = jerry_get_object_native_pointer(this_obj, &void_ptr, &type_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 195 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 196 | if (!has_ptr || type_ptr != &native_obj_type_info) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 197 | return jerry_create_error(JERRY_ERROR_TYPE, |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 198 | (const jerry_char_t *) "Failed to get native DevI2C pointer"); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 199 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 200 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 201 | I2C *native_ptr = static_cast<I2C*>(void_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 202 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 203 | // Unwrap arguments |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 204 | int data = jerry_get_number_value(args[0]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 205 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 206 | int result = native_ptr->write(data); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 207 | return jerry_create_number(result); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 208 | } else { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 209 | // 3 or 4 |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 210 | CHECK_ARGUMENT_TYPE_ALWAYS(DevI2C, write, 0, number); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 211 | CHECK_ARGUMENT_TYPE_ALWAYS(DevI2C, write, 1, array); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 212 | CHECK_ARGUMENT_TYPE_ALWAYS(DevI2C, write, 2, number); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 213 | CHECK_ARGUMENT_TYPE_ON_CONDITION(DevI2C, write, 3, boolean, (args_count == 4)); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 214 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 215 | // Extract native DevI2C object |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 216 | void *void_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 217 | const jerry_object_native_info_t *type_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 218 | bool has_ptr = jerry_get_object_native_pointer(this_obj, &void_ptr, &type_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 219 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 220 | if (!has_ptr || type_ptr != &native_obj_type_info) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 221 | return jerry_create_error(JERRY_ERROR_TYPE, |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 222 | (const jerry_char_t *) "Failed to get native DevI2C pointer"); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 223 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 224 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 225 | I2C *native_ptr = static_cast<I2C*>(void_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 226 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 227 | // Unwrap arguments |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 228 | int address = jerry_get_number_value(args[0]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 229 | const uint32_t data_len = jerry_get_array_length(args[1]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 230 | int length = jerry_get_number_value(args[2]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 231 | bool repeated = args_count == 4 && jerry_get_boolean_value(args[3]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 232 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 233 | // Construct data byte array |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 234 | char *data = new char[data_len]; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 235 | for (uint32_t i = 0; i < data_len; i++) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 236 | data[i] = jerry_get_number_value(jerry_get_property_by_index(args[1], i)); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 237 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 238 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 239 | int result = native_ptr->write(address, data, length, repeated); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 240 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 241 | // free dynamically allocated resources |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 242 | delete[] data; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 243 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 244 | return jerry_create_number(result); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 245 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 246 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 247 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 248 | /** |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 249 | * DevI2C#start (native JavaScript method) |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 250 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 251 | * Creates a start condition on the DevI2C bus. |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 252 | */ |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 253 | DECLARE_CLASS_FUNCTION(DevI2C, start) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 254 | CHECK_ARGUMENT_COUNT(DevI2C, start, (args_count == 0)); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 255 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 256 | // Extract native DevI2C object |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 257 | void *void_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 258 | const jerry_object_native_info_t *type_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 259 | bool has_ptr = jerry_get_object_native_pointer(this_obj, &void_ptr, &type_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 260 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 261 | if (!has_ptr || type_ptr != &native_obj_type_info) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 262 | return jerry_create_error(JERRY_ERROR_TYPE, |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 263 | (const jerry_char_t *) "Failed to get native DevI2C pointer"); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 264 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 265 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 266 | I2C *native_ptr = static_cast<I2C*>(void_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 267 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 268 | native_ptr->start(); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 269 | return jerry_create_undefined(); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 270 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 271 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 272 | /** |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 273 | * DevI2C#stop (native JavaScript method) |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 274 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 275 | * Creates a stop condition on the DevI2C bus. |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 276 | */ |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 277 | DECLARE_CLASS_FUNCTION(DevI2C, stop) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 278 | CHECK_ARGUMENT_COUNT(DevI2C, stop, (args_count == 0)); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 279 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 280 | // Extract native DevI2C object |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 281 | void *void_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 282 | const jerry_object_native_info_t *type_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 283 | bool has_ptr = jerry_get_object_native_pointer(this_obj, &void_ptr, &type_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 284 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 285 | if (!has_ptr || type_ptr != &native_obj_type_info) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 286 | return jerry_create_error(JERRY_ERROR_TYPE, |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 287 | (const jerry_char_t *) "Failed to get native DevI2C pointer"); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 288 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 289 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 290 | I2C *native_ptr = static_cast<I2C*>(void_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 291 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 292 | native_ptr->stop(); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 293 | return jerry_create_undefined(); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 294 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 295 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 296 | /** |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 297 | * DevI2C (native JavaScript constructor) |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 298 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 299 | * @param sda mbed pin for DevI2C data |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 300 | * @param scl mbed pin for DevI2C clock |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 301 | * @returns a JavaScript object representing the DevI2C bus. |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 302 | */ |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 303 | DECLARE_CLASS_CONSTRUCTOR(DevI2C) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 304 | CHECK_ARGUMENT_COUNT(DevI2C, __constructor, (args_count == 2)); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 305 | CHECK_ARGUMENT_TYPE_ALWAYS(DevI2C, __constructor, 0, number); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 306 | CHECK_ARGUMENT_TYPE_ALWAYS(DevI2C, __constructor, 1, number); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 307 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 308 | int sda = jerry_get_number_value(args[0]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 309 | int scl = jerry_get_number_value(args[1]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 310 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 311 | DevI2C *native_ptr = new DevI2C((PinName)sda, (PinName)scl); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 312 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 313 | jerry_value_t js_object = jerry_create_object(); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 314 | jerry_set_object_native_pointer(js_object, native_ptr, &native_obj_type_info); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 315 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 316 | ATTACH_CLASS_FUNCTION(js_object, DevI2C, frequency); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 317 | ATTACH_CLASS_FUNCTION(js_object, DevI2C, read); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 318 | ATTACH_CLASS_FUNCTION(js_object, DevI2C, write); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 319 | ATTACH_CLASS_FUNCTION(js_object, DevI2C, start); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 320 | ATTACH_CLASS_FUNCTION(js_object, DevI2C, stop); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 321 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 322 | return js_object; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 323 | } |