DevI2C wrappers for Javascript.
Dependents: ST_SENSOR_JS MQTT_JS
DevI2C-js.cpp@2:c899857665c6, 2018-01-17 (annotated)
- Committer:
- akhtar.syedzeeshan@gmail.com
- Date:
- Wed Jan 17 10:51:57 2018 +0100
- Revision:
- 2:c899857665c6
- Parent:
- 1:9004b187e772
Code fixes
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 1 | /** |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 2 | ****************************************************************************** |
akhtar.syedzeeshan@gmail.com | 2:c899857665c6 | 3 | * @file DevI2C-js.cpp |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 4 | * @author ST |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 5 | * @version V1.0.0 |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 6 | * @date 25 October 2017 |
akhtar.syedzeeshan@gmail.com | 2:c899857665c6 | 7 | * @brief Implementation of DevI2C for Javascript. |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 8 | ****************************************************************************** |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 9 | * @attention |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 10 | * |
akhtar.syedzeeshan@gmail.com | 2:c899857665c6 | 11 | * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2> |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 12 | * |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 13 | * Redistribution and use in source and binary forms, with or without modification, |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 14 | * are permitted provided that the following conditions are met: |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 15 | * 1. Redistributions of source code must retain the above copyright notice, |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 16 | * this list of conditions and the following disclaimer. |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 17 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 18 | * this list of conditions and the following disclaimer in the documentation |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 19 | * and/or other materials provided with the distribution. |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 20 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 21 | * may be used to endorse or promote products derived from this software |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 22 | * without specific prior written permission. |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 23 | * |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 24 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 25 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 27 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 30 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 31 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 32 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 33 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 34 | * |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 35 | ****************************************************************************** |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 36 | */ |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 37 | |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 38 | |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 39 | /* Includes ------------------------------------------------------------------*/ |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 40 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 41 | #include "jerryscript-mbed-util/logging.h" |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 42 | #include "jerryscript-mbed-library-registry/wrap_tools.h" |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 43 | |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 44 | // Load the library that we'll wrap |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 45 | #include "DevI2C.h" |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 46 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 47 | #include "mbed.h" |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 48 | |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 49 | /* Class Implementation ------------------------------------------------------*/ |
akhtar.syedzeeshan@gmail.com | 1:9004b187e772 | 50 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 51 | /** |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 52 | * DevI2C#destructor |
akhtar.syedzeeshan@gmail.com | 2:c899857665c6 | 53 | * @brief Called if/when the DevI2C object is GC'ed. |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 54 | */ |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 55 | void NAME_FOR_CLASS_NATIVE_DESTRUCTOR(DevI2C) (void *void_ptr) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 56 | delete static_cast<DevI2C*>(void_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 57 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 58 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 59 | /** |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 60 | * Type infomation of the native DevI2C pointer |
akhtar.syedzeeshan@gmail.com | 2:c899857665c6 | 61 | * @brief Set DevI2C#destructor as the free callback. |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 62 | */ |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 63 | static const jerry_object_native_info_t native_obj_type_info = { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 64 | .free_cb = NAME_FOR_CLASS_NATIVE_DESTRUCTOR(DevI2C) |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 65 | }; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 66 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 67 | /** |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 68 | * DevI2C#frequency (native JavaScript method) |
akhtar.syedzeeshan@gmail.com | 2:c899857665c6 | 69 | * @brief Set the frequency of the DevI2C bus. |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 70 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 71 | * @param frequency New DevI2C Frequency |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 72 | */ |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 73 | DECLARE_CLASS_FUNCTION(DevI2C, frequency) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 74 | CHECK_ARGUMENT_COUNT(DevI2C, frequency, (args_count == 1)); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 75 | CHECK_ARGUMENT_TYPE_ALWAYS(DevI2C, frequency, 0, number); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 76 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 77 | // Unwrap native DevI2C object |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 78 | void *void_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 79 | const jerry_object_native_info_t *type_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 80 | bool has_ptr = jerry_get_object_native_pointer(this_obj, &void_ptr, &type_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 81 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 82 | if (!has_ptr || type_ptr != &native_obj_type_info) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 83 | return jerry_create_error(JERRY_ERROR_TYPE, |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 84 | (const jerry_char_t *) "Failed to get native DevI2C pointer"); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 85 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 86 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 87 | I2C *native_ptr = static_cast<I2C*>(void_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 88 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 89 | int hz = jerry_get_number_value(args[0]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 90 | native_ptr->frequency(hz); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 91 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 92 | return jerry_create_undefined(); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 93 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 94 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 95 | /** |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 96 | * DevI2C#read (native JavaScript method) |
akhtar.syedzeeshan@gmail.com | 2:c899857665c6 | 97 | * @brief Read data from the DevI2C bus. |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 98 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 99 | * @overload DevI2C#read(int) |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 100 | * Read a single byte from the DevI2C bus |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 101 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 102 | * @param ack indicates if the byte is to be acknowledged (1 => acknowledge) |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 103 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 104 | * @returns array: Data read from the DevI2C bus |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 105 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 106 | * @overload DevI2C#read(int, array, int) |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 107 | * Read a series of bytes from the DevI2C bus |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 108 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 109 | * @param address DevI2C address to read from |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 110 | * @param data Array to read into |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 111 | * @param length Length of data to read |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 112 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 113 | * @returns array: Data read from the DevI2C bus |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 114 | */ |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 115 | DECLARE_CLASS_FUNCTION(DevI2C, read) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 116 | CHECK_ARGUMENT_COUNT(DevI2C, read, (args_count == 1 || args_count == 3 || args_count == 4)); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 117 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 118 | if (args_count == 1) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 119 | CHECK_ARGUMENT_TYPE_ALWAYS(DevI2C, read, 0, number); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 120 | void *void_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 121 | const jerry_object_native_info_t *type_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 122 | bool has_ptr = jerry_get_object_native_pointer(this_obj, &void_ptr, &type_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 123 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 124 | if (!has_ptr || type_ptr != &native_obj_type_info) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 125 | return jerry_create_error(JERRY_ERROR_TYPE, |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 126 | (const jerry_char_t *) "Failed to get native DevI2C pointer"); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 127 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 128 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 129 | I2C *native_ptr = static_cast<I2C*>(void_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 130 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 131 | int data = jerry_get_number_value(args[0]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 132 | int result = native_ptr->read(data); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 133 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 134 | return jerry_create_number(result); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 135 | } else { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 136 | CHECK_ARGUMENT_TYPE_ALWAYS(DevI2C, read, 0, number); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 137 | CHECK_ARGUMENT_TYPE_ALWAYS(DevI2C, read, 1, array); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 138 | CHECK_ARGUMENT_TYPE_ALWAYS(DevI2C, read, 2, number); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 139 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 140 | CHECK_ARGUMENT_TYPE_ON_CONDITION(DevI2C, read, 3, boolean, (args_count == 4)); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 141 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 142 | void *void_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 143 | const jerry_object_native_info_t *type_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 144 | bool has_ptr = jerry_get_object_native_pointer(this_obj, &void_ptr, &type_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 145 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 146 | if (!has_ptr || type_ptr != &native_obj_type_info) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 147 | return jerry_create_error(JERRY_ERROR_TYPE, |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 148 | (const jerry_char_t *) "Failed to get native DevI2C pointer"); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 149 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 150 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 151 | I2C *native_ptr = static_cast<I2C*>(void_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 152 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 153 | const uint32_t data_len = jerry_get_array_length(args[1]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 154 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 155 | int address = jerry_get_number_value(args[0]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 156 | int length = jerry_get_number_value(args[2]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 157 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 158 | char *data = new char[data_len]; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 159 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 160 | bool repeated = false; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 161 | if (args_count == 4) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 162 | repeated = jerry_get_boolean_value(args[3]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 163 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 164 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 165 | int result = native_ptr->read(address, data, length, repeated); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 166 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 167 | jerry_value_t out_array = jerry_create_array(data_len); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 168 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 169 | for (uint32_t i = 0; i < data_len; i++) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 170 | jerry_value_t val = jerry_create_number(double(data[i])); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 171 | jerry_set_property_by_index(out_array, i, val); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 172 | jerry_release_value(val); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 173 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 174 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 175 | delete[] data; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 176 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 177 | if (result == 0) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 178 | // ACK |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 179 | return out_array; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 180 | } else { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 181 | // NACK |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 182 | const char *error_msg = "NACK received from DevI2C bus"; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 183 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 184 | jerry_release_value(out_array); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 185 | return jerry_create_error(JERRY_ERROR_COMMON, reinterpret_cast<const jerry_char_t *>(error_msg)); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 186 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 187 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 188 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 189 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 190 | /** |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 191 | * DevI2C#write (native JavaScript method) |
akhtar.syedzeeshan@gmail.com | 2:c899857665c6 | 192 | * @brief Writes to DevI2C bus |
akhtar.syedzeeshan@gmail.com | 2:c899857665c6 | 193 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 194 | * @overload DevI2C#write(int) |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 195 | * Write a single byte to the DevI2C bus |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 196 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 197 | * @param data Data byte to write to the DevI2C bus |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 198 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 199 | * @returns 1 on success, 0 on failure |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 200 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 201 | * @overload DevI2C#write(int, array, int, bool) |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 202 | * Write an array of data to a certain address on the DevI2C bus |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 203 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 204 | * @param address 8-bit DevI2C slave address |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 205 | * @param data Array of bytes to send |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 206 | * @param length Length of data to write |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 207 | * @param repeated (optional) If true, do not send stop at end. |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 208 | * |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 209 | * @returns 0 on success, non-0 on failure |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 210 | */ |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 211 | DECLARE_CLASS_FUNCTION(DevI2C, write) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 212 | CHECK_ARGUMENT_COUNT(DevI2C, write, (args_count == 1 || args_count == 3 || args_count == 4)); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 213 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 214 | if (args_count == 1) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 215 | CHECK_ARGUMENT_TYPE_ALWAYS(DevI2C, write, 0, number); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 216 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 217 | // Extract native DevI2C object |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 218 | void *void_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 219 | const jerry_object_native_info_t *type_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 220 | bool has_ptr = jerry_get_object_native_pointer(this_obj, &void_ptr, &type_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 221 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 222 | if (!has_ptr || type_ptr != &native_obj_type_info) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 223 | return jerry_create_error(JERRY_ERROR_TYPE, |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 224 | (const jerry_char_t *) "Failed to get native DevI2C pointer"); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 225 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 226 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 227 | I2C *native_ptr = static_cast<I2C*>(void_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 228 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 229 | // Unwrap arguments |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 230 | int data = jerry_get_number_value(args[0]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 231 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 232 | int result = native_ptr->write(data); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 233 | return jerry_create_number(result); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 234 | } else { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 235 | // 3 or 4 |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 236 | CHECK_ARGUMENT_TYPE_ALWAYS(DevI2C, write, 0, number); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 237 | CHECK_ARGUMENT_TYPE_ALWAYS(DevI2C, write, 1, array); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 238 | CHECK_ARGUMENT_TYPE_ALWAYS(DevI2C, write, 2, number); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 239 | CHECK_ARGUMENT_TYPE_ON_CONDITION(DevI2C, write, 3, boolean, (args_count == 4)); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 240 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 241 | // Extract native DevI2C object |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 242 | void *void_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 243 | const jerry_object_native_info_t *type_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 244 | bool has_ptr = jerry_get_object_native_pointer(this_obj, &void_ptr, &type_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 245 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 246 | if (!has_ptr || type_ptr != &native_obj_type_info) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 247 | return jerry_create_error(JERRY_ERROR_TYPE, |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 248 | (const jerry_char_t *) "Failed to get native DevI2C pointer"); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 249 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 250 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 251 | I2C *native_ptr = static_cast<I2C*>(void_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 252 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 253 | // Unwrap arguments |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 254 | int address = jerry_get_number_value(args[0]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 255 | const uint32_t data_len = jerry_get_array_length(args[1]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 256 | int length = jerry_get_number_value(args[2]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 257 | bool repeated = args_count == 4 && jerry_get_boolean_value(args[3]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 258 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 259 | // Construct data byte array |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 260 | char *data = new char[data_len]; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 261 | for (uint32_t i = 0; i < data_len; i++) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 262 | data[i] = jerry_get_number_value(jerry_get_property_by_index(args[1], i)); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 263 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 264 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 265 | int result = native_ptr->write(address, data, length, repeated); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 266 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 267 | // free dynamically allocated resources |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 268 | delete[] data; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 269 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 270 | return jerry_create_number(result); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 271 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 272 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 273 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 274 | /** |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 275 | * DevI2C#start (native JavaScript method) |
akhtar.syedzeeshan@gmail.com | 2:c899857665c6 | 276 | * @brief Creates a start condition on the DevI2C bus. |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 277 | */ |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 278 | DECLARE_CLASS_FUNCTION(DevI2C, start) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 279 | CHECK_ARGUMENT_COUNT(DevI2C, start, (args_count == 0)); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 280 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 281 | // Extract native DevI2C object |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 282 | void *void_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 283 | const jerry_object_native_info_t *type_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 284 | bool has_ptr = jerry_get_object_native_pointer(this_obj, &void_ptr, &type_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 285 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 286 | if (!has_ptr || type_ptr != &native_obj_type_info) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 287 | return jerry_create_error(JERRY_ERROR_TYPE, |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 288 | (const jerry_char_t *) "Failed to get native DevI2C pointer"); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 289 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 290 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 291 | I2C *native_ptr = static_cast<I2C*>(void_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 292 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 293 | native_ptr->start(); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 294 | return jerry_create_undefined(); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 295 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 296 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 297 | /** |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 298 | * DevI2C#stop (native JavaScript method) |
akhtar.syedzeeshan@gmail.com | 2:c899857665c6 | 299 | * @brief Creates a stop condition on the DevI2C bus. |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 300 | */ |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 301 | DECLARE_CLASS_FUNCTION(DevI2C, stop) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 302 | CHECK_ARGUMENT_COUNT(DevI2C, stop, (args_count == 0)); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 303 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 304 | // Extract native DevI2C object |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 305 | void *void_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 306 | const jerry_object_native_info_t *type_ptr; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 307 | bool has_ptr = jerry_get_object_native_pointer(this_obj, &void_ptr, &type_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 308 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 309 | if (!has_ptr || type_ptr != &native_obj_type_info) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 310 | return jerry_create_error(JERRY_ERROR_TYPE, |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 311 | (const jerry_char_t *) "Failed to get native DevI2C pointer"); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 312 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 313 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 314 | I2C *native_ptr = static_cast<I2C*>(void_ptr); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 315 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 316 | native_ptr->stop(); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 317 | return jerry_create_undefined(); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 318 | } |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 319 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 320 | /** |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 321 | * DevI2C (native JavaScript constructor) |
akhtar.syedzeeshan@gmail.com | 2:c899857665c6 | 322 | * @brief Constructor |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 323 | * @param sda mbed pin for DevI2C data |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 324 | * @param scl mbed pin for DevI2C clock |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 325 | * @returns a JavaScript object representing the DevI2C bus. |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 326 | */ |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 327 | DECLARE_CLASS_CONSTRUCTOR(DevI2C) { |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 328 | CHECK_ARGUMENT_COUNT(DevI2C, __constructor, (args_count == 2)); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 329 | CHECK_ARGUMENT_TYPE_ALWAYS(DevI2C, __constructor, 0, number); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 330 | CHECK_ARGUMENT_TYPE_ALWAYS(DevI2C, __constructor, 1, number); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 331 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 332 | int sda = jerry_get_number_value(args[0]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 333 | int scl = jerry_get_number_value(args[1]); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 334 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 335 | DevI2C *native_ptr = new DevI2C((PinName)sda, (PinName)scl); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 336 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 337 | jerry_value_t js_object = jerry_create_object(); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 338 | jerry_set_object_native_pointer(js_object, native_ptr, &native_obj_type_info); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 339 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 340 | ATTACH_CLASS_FUNCTION(js_object, DevI2C, frequency); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 341 | ATTACH_CLASS_FUNCTION(js_object, DevI2C, read); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 342 | ATTACH_CLASS_FUNCTION(js_object, DevI2C, write); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 343 | ATTACH_CLASS_FUNCTION(js_object, DevI2C, start); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 344 | ATTACH_CLASS_FUNCTION(js_object, DevI2C, stop); |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 345 | |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 346 | return js_object; |
akhtar.syedzeeshan@gmail.com | 0:948fd0e96aaa | 347 | } |