John Alexander / VL53L3ExpansionBoard

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Dependencies:   VL53L3_Lib

Dependents:  

Components/STMPE1600/Stmpe1600.h@3:4ed68a07058d, 2020-10-30 (annotated)

Committer:
johnAlexander
Date:
Fri Oct 30 15:31:30 2020 +0000
Revision:
3:4ed68a07058d
Restructure

Who changed what in which revision?

UserRevisionLine numberNew contents of line
johnAlexander 3:4ed68a07058d 1 /**
johnAlexander 3:4ed68a07058d 2 ******************************************************************************
johnAlexander 3:4ed68a07058d 3 * @file Stmpe1600.h
johnAlexander 3:4ed68a07058d 4 * @author AST / EST
johnAlexander 3:4ed68a07058d 5 * @version V0.0.1
johnAlexander 3:4ed68a07058d 6 * @date 14-April-2015
johnAlexander 3:4ed68a07058d 7 * @brief Header file for component stmpe1600
johnAlexander 3:4ed68a07058d 8 ******************************************************************************
johnAlexander 3:4ed68a07058d 9 * @attention
johnAlexander 3:4ed68a07058d 10 *
johnAlexander 3:4ed68a07058d 11 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
johnAlexander 3:4ed68a07058d 12 *
johnAlexander 3:4ed68a07058d 13 * Redistribution and use in source and binary forms, with or without modification,
johnAlexander 3:4ed68a07058d 14 * are permitted provided that the following conditions are met:
johnAlexander 3:4ed68a07058d 15 * 1. Redistributions of source code must retain the above copyright notice,
johnAlexander 3:4ed68a07058d 16 * this list of conditions and the following disclaimer.
johnAlexander 3:4ed68a07058d 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
johnAlexander 3:4ed68a07058d 18 * this list of conditions and the following disclaimer in the documentation
johnAlexander 3:4ed68a07058d 19 * and/or other materials provided with the distribution.
johnAlexander 3:4ed68a07058d 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
johnAlexander 3:4ed68a07058d 21 * may be used to endorse or promote products derived from this software
johnAlexander 3:4ed68a07058d 22 * without specific prior written permission.
johnAlexander 3:4ed68a07058d 23 *
johnAlexander 3:4ed68a07058d 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
johnAlexander 3:4ed68a07058d 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
johnAlexander 3:4ed68a07058d 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
johnAlexander 3:4ed68a07058d 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
johnAlexander 3:4ed68a07058d 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
johnAlexander 3:4ed68a07058d 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
johnAlexander 3:4ed68a07058d 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
johnAlexander 3:4ed68a07058d 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
johnAlexander 3:4ed68a07058d 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
johnAlexander 3:4ed68a07058d 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
johnAlexander 3:4ed68a07058d 34 *
johnAlexander 3:4ed68a07058d 35 ******************************************************************************
johnAlexander 3:4ed68a07058d 36 */
johnAlexander 3:4ed68a07058d 37 #ifndef __STMPE1600_CLASS
johnAlexander 3:4ed68a07058d 38 #define __STMPE1600_CLASS
johnAlexander 3:4ed68a07058d 39 /* Includes ------------------------------------------------------------------*/
johnAlexander 3:4ed68a07058d 40 #include "DevI2C.h"
johnAlexander 3:4ed68a07058d 41
johnAlexander 3:4ed68a07058d 42 #define STMPE1600_DEF_DEVICE_ADDRESS (uint8_t)0x42*2
johnAlexander 3:4ed68a07058d 43 #define STMPE1600_DEF_DIGIOUT_LVL 1
johnAlexander 3:4ed68a07058d 44
johnAlexander 3:4ed68a07058d 45 /** STMPE1600 registr map **/
johnAlexander 3:4ed68a07058d 46 #define CHIP_ID_0_7 (uint8_t)0x00
johnAlexander 3:4ed68a07058d 47 #define CHIP_ID_8_15 (uint8_t)0x01
johnAlexander 3:4ed68a07058d 48 #define VERSION_ID (uint8_t)0x02
johnAlexander 3:4ed68a07058d 49 #define SYS_CTRL (uint8_t)0x03
johnAlexander 3:4ed68a07058d 50 #define IEGPIOR_0_7 (uint8_t)0x08
johnAlexander 3:4ed68a07058d 51 #define IEGPIOR_8_15 (uint8_t)0x09
johnAlexander 3:4ed68a07058d 52 #define ISGPIOR_0_7 (uint8_t)0x0A
johnAlexander 3:4ed68a07058d 53 #define ISGPIOR_8_15 (uint8_t)0x0B
johnAlexander 3:4ed68a07058d 54 #define GPMR_0_7 (uint8_t)0x10
johnAlexander 3:4ed68a07058d 55 #define GPMR_8_15 (uint8_t)0x11
johnAlexander 3:4ed68a07058d 56 #define GPSR_0_7 (uint8_t)0x12
johnAlexander 3:4ed68a07058d 57 #define GPSR_8_15 (uint8_t)0x13
johnAlexander 3:4ed68a07058d 58 #define GPDR_0_7 (uint8_t)0x14
johnAlexander 3:4ed68a07058d 59 #define GPDR_8_15 (uint8_t)0x15
johnAlexander 3:4ed68a07058d 60 #define GPIR_0_7 (uint8_t)0x16
johnAlexander 3:4ed68a07058d 61 #define GPIR_8_15 (uint8_t)0x17
johnAlexander 3:4ed68a07058d 62
johnAlexander 3:4ed68a07058d 63 #define SOFT_RESET (uint8_t)0x80
johnAlexander 3:4ed68a07058d 64
johnAlexander 3:4ed68a07058d 65 typedef enum {
johnAlexander 3:4ed68a07058d 66 // GPIO Expander pin names
johnAlexander 3:4ed68a07058d 67 GPIO_0 = 0,
johnAlexander 3:4ed68a07058d 68 GPIO_1,
johnAlexander 3:4ed68a07058d 69 GPIO_2,
johnAlexander 3:4ed68a07058d 70 GPIO_3,
johnAlexander 3:4ed68a07058d 71 GPIO_4,
johnAlexander 3:4ed68a07058d 72 GPIO_5,
johnAlexander 3:4ed68a07058d 73 GPIO_6,
johnAlexander 3:4ed68a07058d 74 GPIO_7,
johnAlexander 3:4ed68a07058d 75 GPIO_8,
johnAlexander 3:4ed68a07058d 76 GPIO_9,
johnAlexander 3:4ed68a07058d 77 GPIO_10,
johnAlexander 3:4ed68a07058d 78 GPIO_11,
johnAlexander 3:4ed68a07058d 79 GPIO_12,
johnAlexander 3:4ed68a07058d 80 GPIO_13,
johnAlexander 3:4ed68a07058d 81 GPIO_14,
johnAlexander 3:4ed68a07058d 82 GPIO_15,
johnAlexander 3:4ed68a07058d 83 NOT_CON
johnAlexander 3:4ed68a07058d 84 } ExpGpioPinName;
johnAlexander 3:4ed68a07058d 85
johnAlexander 3:4ed68a07058d 86 typedef enum {
johnAlexander 3:4ed68a07058d 87 INPUT = 0,
johnAlexander 3:4ed68a07058d 88 OUTPUT,
johnAlexander 3:4ed68a07058d 89 NOT_CONNECTED
johnAlexander 3:4ed68a07058d 90 } ExpGpioPinDirection;
johnAlexander 3:4ed68a07058d 91
johnAlexander 3:4ed68a07058d 92 /* Classes -------------------------------------------------------------------*/
johnAlexander 3:4ed68a07058d 93 /** Class representing a single stmpe1600 GPIO expander output pin
johnAlexander 3:4ed68a07058d 94 */
johnAlexander 3:4ed68a07058d 95 class Stmpe1600DigiOut
johnAlexander 3:4ed68a07058d 96 {
johnAlexander 3:4ed68a07058d 97
johnAlexander 3:4ed68a07058d 98 public:
johnAlexander 3:4ed68a07058d 99 /** Constructor
johnAlexander 3:4ed68a07058d 100 * @param[in] &i2c device I2C to be used for communication
johnAlexander 3:4ed68a07058d 101 * @param[in] outpinname the desired out pin name to be created
johnAlexander 3:4ed68a07058d 102 * @param[in] DevAddr the stmpe1600 I2C device address (deft STMPE1600_DEF_DEVICE_ADDRESS)
johnAlexander 3:4ed68a07058d 103 * @param[in] lvl the default ot pin level
johnAlexander 3:4ed68a07058d 104 */
johnAlexander 3:4ed68a07058d 105 Stmpe1600DigiOut(DevI2C *i2c, ExpGpioPinName out_pin_name, uint8_t dev_addr = STMPE1600_DEF_DEVICE_ADDRESS,
johnAlexander 3:4ed68a07058d 106 bool lvl = STMPE1600_DEF_DIGIOUT_LVL) : _dev_i2c(i2c), exp_dev_addr(dev_addr), exp_pin_name(out_pin_name)
johnAlexander 3:4ed68a07058d 107 {
johnAlexander 3:4ed68a07058d 108 uint8_t data[2];
johnAlexander 3:4ed68a07058d 109
johnAlexander 3:4ed68a07058d 110 if (exp_pin_name == NOT_CON) {
johnAlexander 3:4ed68a07058d 111 return;
johnAlexander 3:4ed68a07058d 112 }
johnAlexander 3:4ed68a07058d 113 /* set the exp_pin_name as output */
johnAlexander 3:4ed68a07058d 114 _dev_i2c->i2c_read(data, exp_dev_addr, GPDR_0_7, 1);
johnAlexander 3:4ed68a07058d 115 _dev_i2c->i2c_read(&data[1], exp_dev_addr, GPDR_8_15, 1);
johnAlexander 3:4ed68a07058d 116 * (uint16_t *) data = * (uint16_t *) data | (1 << (uint16_t) exp_pin_name); // set gpio as out
johnAlexander 3:4ed68a07058d 117 _dev_i2c->i2c_write(data, exp_dev_addr, GPDR_0_7, 1);
johnAlexander 3:4ed68a07058d 118 _dev_i2c->i2c_write(&data[1], exp_dev_addr, GPDR_8_15, 1);
johnAlexander 3:4ed68a07058d 119 write(lvl);
johnAlexander 3:4ed68a07058d 120 }
johnAlexander 3:4ed68a07058d 121
johnAlexander 3:4ed68a07058d 122 /**
johnAlexander 3:4ed68a07058d 123 * @brief Write on the out pin
johnAlexander 3:4ed68a07058d 124 * @param[in] lvl level to write
johnAlexander 3:4ed68a07058d 125 * @return 0 on Success
johnAlexander 3:4ed68a07058d 126 */
johnAlexander 3:4ed68a07058d 127 void write(int lvl)
johnAlexander 3:4ed68a07058d 128 {
johnAlexander 3:4ed68a07058d 129 uint8_t data[2];
johnAlexander 3:4ed68a07058d 130
johnAlexander 3:4ed68a07058d 131 if (exp_pin_name == NOT_CON) {
johnAlexander 3:4ed68a07058d 132 return;
johnAlexander 3:4ed68a07058d 133 }
johnAlexander 3:4ed68a07058d 134 /* set the exp_pin_name state to lvl */
johnAlexander 3:4ed68a07058d 135 _dev_i2c->i2c_read(data, exp_dev_addr, GPSR_0_7, 2);
johnAlexander 3:4ed68a07058d 136 * (uint16_t *) data = * (uint16_t *) data & (uint16_t)(~(1 << (uint16_t) exp_pin_name)); // set pin mask
johnAlexander 3:4ed68a07058d 137 if (lvl) {
johnAlexander 3:4ed68a07058d 138 * (uint16_t *) data = * (uint16_t *) data | (uint16_t)(1 << (uint16_t) exp_pin_name);
johnAlexander 3:4ed68a07058d 139 }
johnAlexander 3:4ed68a07058d 140 _dev_i2c->i2c_write(data, exp_dev_addr, GPSR_0_7, 2);
johnAlexander 3:4ed68a07058d 141 }
johnAlexander 3:4ed68a07058d 142
johnAlexander 3:4ed68a07058d 143 /**
johnAlexander 3:4ed68a07058d 144 * @brief Overload assignement operator
johnAlexander 3:4ed68a07058d 145 */
johnAlexander 3:4ed68a07058d 146 Stmpe1600DigiOut &operator= (int lvl)
johnAlexander 3:4ed68a07058d 147 {
johnAlexander 3:4ed68a07058d 148 write(lvl);
johnAlexander 3:4ed68a07058d 149 return *this;
johnAlexander 3:4ed68a07058d 150 }
johnAlexander 3:4ed68a07058d 151
johnAlexander 3:4ed68a07058d 152 private:
johnAlexander 3:4ed68a07058d 153 DevI2C *_dev_i2c;
johnAlexander 3:4ed68a07058d 154 uint8_t exp_dev_addr;
johnAlexander 3:4ed68a07058d 155 ExpGpioPinName exp_pin_name;
johnAlexander 3:4ed68a07058d 156 };
johnAlexander 3:4ed68a07058d 157
johnAlexander 3:4ed68a07058d 158 /* Classes -------------------------------------------------------------------*/
johnAlexander 3:4ed68a07058d 159 /** Class representing a single stmpe1600 GPIO expander input pin
johnAlexander 3:4ed68a07058d 160 */
johnAlexander 3:4ed68a07058d 161 class Stmpe1600DigiIn
johnAlexander 3:4ed68a07058d 162 {
johnAlexander 3:4ed68a07058d 163 public:
johnAlexander 3:4ed68a07058d 164 /** Constructor
johnAlexander 3:4ed68a07058d 165 * @param[in] &i2c device I2C to be used for communication
johnAlexander 3:4ed68a07058d 166 * @param[in] inpinname the desired input pin name to be created
johnAlexander 3:4ed68a07058d 167 * @param[in] DevAddr the stmpe1600 I2C device addres (deft STMPE1600_DEF_DEVICE_ADDRESS)
johnAlexander 3:4ed68a07058d 168 */
johnAlexander 3:4ed68a07058d 169 Stmpe1600DigiIn(DevI2C *i2c, ExpGpioPinName in_pin_name,
johnAlexander 3:4ed68a07058d 170 uint8_t dev_addr = STMPE1600_DEF_DEVICE_ADDRESS) : _dev_i2c(i2c), exp_dev_addr(dev_addr),
johnAlexander 3:4ed68a07058d 171 exp_pin_name(in_pin_name)
johnAlexander 3:4ed68a07058d 172 {
johnAlexander 3:4ed68a07058d 173 uint8_t data[2];
johnAlexander 3:4ed68a07058d 174
johnAlexander 3:4ed68a07058d 175 if (exp_pin_name == NOT_CON) {
johnAlexander 3:4ed68a07058d 176 return;
johnAlexander 3:4ed68a07058d 177 }
johnAlexander 3:4ed68a07058d 178 /* set the exp_pin_name as input pin direction */
johnAlexander 3:4ed68a07058d 179 _dev_i2c->i2c_read(data, exp_dev_addr, GPDR_0_7, 2);
johnAlexander 3:4ed68a07058d 180 * (uint16_t *) data = * (uint16_t *) data & (uint16_t)(~(1 << (uint16_t) exp_pin_name)); // set gpio as in
johnAlexander 3:4ed68a07058d 181 _dev_i2c->i2c_write(data, exp_dev_addr, GPDR_0_7, 2);
johnAlexander 3:4ed68a07058d 182 }
johnAlexander 3:4ed68a07058d 183
johnAlexander 3:4ed68a07058d 184 /**
johnAlexander 3:4ed68a07058d 185 * @brief Read the input pin
johnAlexander 3:4ed68a07058d 186 * @return The pin logical state 0 or 1
johnAlexander 3:4ed68a07058d 187 */
johnAlexander 3:4ed68a07058d 188 bool read()
johnAlexander 3:4ed68a07058d 189 {
johnAlexander 3:4ed68a07058d 190 uint8_t data[2];
johnAlexander 3:4ed68a07058d 191
johnAlexander 3:4ed68a07058d 192 if (exp_pin_name == NOT_CON) {
johnAlexander 3:4ed68a07058d 193 return false;
johnAlexander 3:4ed68a07058d 194 }
johnAlexander 3:4ed68a07058d 195 /* read the exp_pin_name */
johnAlexander 3:4ed68a07058d 196 _dev_i2c->i2c_read(data, exp_dev_addr, GPMR_0_7, 2);
johnAlexander 3:4ed68a07058d 197 * (uint16_t *) data = * (uint16_t *) data & (uint16_t)(1 << (uint16_t) exp_pin_name); // mask the in gpio
johnAlexander 3:4ed68a07058d 198 if (data[0] || data[1]) {
johnAlexander 3:4ed68a07058d 199 return true;
johnAlexander 3:4ed68a07058d 200 }
johnAlexander 3:4ed68a07058d 201 return false;
johnAlexander 3:4ed68a07058d 202 }
johnAlexander 3:4ed68a07058d 203
johnAlexander 3:4ed68a07058d 204 operator int()
johnAlexander 3:4ed68a07058d 205 {
johnAlexander 3:4ed68a07058d 206 return read();
johnAlexander 3:4ed68a07058d 207 }
johnAlexander 3:4ed68a07058d 208
johnAlexander 3:4ed68a07058d 209 private:
johnAlexander 3:4ed68a07058d 210 DevI2C *_dev_i2c;
johnAlexander 3:4ed68a07058d 211 uint8_t exp_dev_addr;
johnAlexander 3:4ed68a07058d 212 ExpGpioPinName exp_pin_name;
johnAlexander 3:4ed68a07058d 213 };
johnAlexander 3:4ed68a07058d 214
johnAlexander 3:4ed68a07058d 215 /* Classes -------------------------------------------------------------------*/
johnAlexander 3:4ed68a07058d 216 /** Class representing a whole stmpe1600 component (16 gpio)
johnAlexander 3:4ed68a07058d 217 */
johnAlexander 3:4ed68a07058d 218 class Stmpe1600
johnAlexander 3:4ed68a07058d 219 {
johnAlexander 3:4ed68a07058d 220
johnAlexander 3:4ed68a07058d 221 public:
johnAlexander 3:4ed68a07058d 222 /** Constructor
johnAlexander 3:4ed68a07058d 223 * @param[in] &i2c device I2C to be used for communication
johnAlexander 3:4ed68a07058d 224 * @param[in] DevAddr the stmpe1600 I2C device addres (deft STMPE1600_DEF_DEVICE_ADDRESS)
johnAlexander 3:4ed68a07058d 225 */
johnAlexander 3:4ed68a07058d 226 Stmpe1600(DevI2C *i2c, uint8_t dev_addr = STMPE1600_DEF_DEVICE_ADDRESS) : _dev_i2c(i2c)
johnAlexander 3:4ed68a07058d 227 {
johnAlexander 3:4ed68a07058d 228 exp_dev_addr = dev_addr;
johnAlexander 3:4ed68a07058d 229 write_sys_ctrl(SOFT_RESET);
johnAlexander 3:4ed68a07058d 230
johnAlexander 3:4ed68a07058d 231 gpdr0_15 = (uint16_t) 0; // gpio dir all IN
johnAlexander 3:4ed68a07058d 232 write_16bit_reg(GPDR_0_7, &gpdr0_15);
johnAlexander 3:4ed68a07058d 233 gpsr0_15 = (uint16_t) 0x0ffff; // gpio status all 1
johnAlexander 3:4ed68a07058d 234 write_16bit_reg(GPSR_0_7, &gpsr0_15);
johnAlexander 3:4ed68a07058d 235 }
johnAlexander 3:4ed68a07058d 236
johnAlexander 3:4ed68a07058d 237 /**
johnAlexander 3:4ed68a07058d 238 * @brief Write the SYS_CTRL register
johnAlexander 3:4ed68a07058d 239 * @param[in] Data to be written (bit fields)
johnAlexander 3:4ed68a07058d 240 */
johnAlexander 3:4ed68a07058d 241 void write_sys_ctrl(uint8_t data) // data = SOFT_RESET reset the device
johnAlexander 3:4ed68a07058d 242 {
johnAlexander 3:4ed68a07058d 243 _dev_i2c->i2c_write(&data, exp_dev_addr, SYS_CTRL, 1);
johnAlexander 3:4ed68a07058d 244 }
johnAlexander 3:4ed68a07058d 245
johnAlexander 3:4ed68a07058d 246 /**
johnAlexander 3:4ed68a07058d 247 * @brief Set the out pin
johnAlexander 3:4ed68a07058d 248 * @param[in] The pin name
johnAlexander 3:4ed68a07058d 249 * @return 0 on Success
johnAlexander 3:4ed68a07058d 250 */
johnAlexander 3:4ed68a07058d 251 bool set_gpio(ExpGpioPinName pin_name)
johnAlexander 3:4ed68a07058d 252 {
johnAlexander 3:4ed68a07058d 253 if (pin_name == NOT_CON) {
johnAlexander 3:4ed68a07058d 254 return true;
johnAlexander 3:4ed68a07058d 255 }
johnAlexander 3:4ed68a07058d 256 gpsr0_15 = gpsr0_15 | ((uint16_t) 0x0001 << pin_name);
johnAlexander 3:4ed68a07058d 257 write_16bit_reg(GPSR_0_7, &gpsr0_15);
johnAlexander 3:4ed68a07058d 258 return false;
johnAlexander 3:4ed68a07058d 259 }
johnAlexander 3:4ed68a07058d 260
johnAlexander 3:4ed68a07058d 261 /**
johnAlexander 3:4ed68a07058d 262 * @brief Clear the out pin
johnAlexander 3:4ed68a07058d 263 * @param[in] The pin name
johnAlexander 3:4ed68a07058d 264 * @return 0 on Success
johnAlexander 3:4ed68a07058d 265 */
johnAlexander 3:4ed68a07058d 266 bool clear_gpio(ExpGpioPinName pin_name)
johnAlexander 3:4ed68a07058d 267 {
johnAlexander 3:4ed68a07058d 268 if (pin_name == NOT_CON) {
johnAlexander 3:4ed68a07058d 269 return true;
johnAlexander 3:4ed68a07058d 270 }
johnAlexander 3:4ed68a07058d 271 gpsr0_15 = gpsr0_15 & (~((uint16_t) 0x0001 << pin_name));
johnAlexander 3:4ed68a07058d 272 write_16bit_reg(GPSR_0_7, &gpsr0_15);
johnAlexander 3:4ed68a07058d 273 return false;
johnAlexander 3:4ed68a07058d 274 }
johnAlexander 3:4ed68a07058d 275
johnAlexander 3:4ed68a07058d 276 /**
johnAlexander 3:4ed68a07058d 277 * @brief Read the input pin
johnAlexander 3:4ed68a07058d 278 * @param[in] The pin name
johnAlexander 3:4ed68a07058d 279 * @return The logical pin level
johnAlexander 3:4ed68a07058d 280 */
johnAlexander 3:4ed68a07058d 281 bool read_gpio(ExpGpioPinName pin_name)
johnAlexander 3:4ed68a07058d 282 {
johnAlexander 3:4ed68a07058d 283 uint16_t gpmr0_15;
johnAlexander 3:4ed68a07058d 284 if (pin_name == NOT_CON) {
johnAlexander 3:4ed68a07058d 285 return true;
johnAlexander 3:4ed68a07058d 286 }
johnAlexander 3:4ed68a07058d 287 read_16bit_reg(GPMR_0_7, &gpmr0_15);
johnAlexander 3:4ed68a07058d 288 gpmr0_15 = gpmr0_15 & ((uint16_t) 0x0001 << pin_name);
johnAlexander 3:4ed68a07058d 289 if (gpmr0_15) {
johnAlexander 3:4ed68a07058d 290 return true;
johnAlexander 3:4ed68a07058d 291 }
johnAlexander 3:4ed68a07058d 292 return false;
johnAlexander 3:4ed68a07058d 293 }
johnAlexander 3:4ed68a07058d 294
johnAlexander 3:4ed68a07058d 295 /**
johnAlexander 3:4ed68a07058d 296 * @brief Set the pin direction
johnAlexander 3:4ed68a07058d 297 * @param[in] The pin name
johnAlexander 3:4ed68a07058d 298 * @param[in] The pin direction
johnAlexander 3:4ed68a07058d 299 * @return 0 on success
johnAlexander 3:4ed68a07058d 300 */
johnAlexander 3:4ed68a07058d 301 bool set_gpio_dir(ExpGpioPinName pin_name, ExpGpioPinDirection pin_dir)
johnAlexander 3:4ed68a07058d 302 {
johnAlexander 3:4ed68a07058d 303
johnAlexander 3:4ed68a07058d 304 if (pin_name == NOT_CON || pin_dir == NOT_CONNECTED) {
johnAlexander 3:4ed68a07058d 305 return true;
johnAlexander 3:4ed68a07058d 306 }
johnAlexander 3:4ed68a07058d 307 gpdr0_15 = gpdr0_15 & (~((uint16_t) 0x0001 << pin_name)); // clear the Pin
johnAlexander 3:4ed68a07058d 308 gpdr0_15 = gpdr0_15 | ((uint16_t) pin_dir << pin_name);
johnAlexander 3:4ed68a07058d 309 write_16bit_reg(GPDR_0_7, &gpdr0_15);
johnAlexander 3:4ed68a07058d 310 return false;
johnAlexander 3:4ed68a07058d 311 }
johnAlexander 3:4ed68a07058d 312
johnAlexander 3:4ed68a07058d 313 /**
johnAlexander 3:4ed68a07058d 314 * @brief Read a 16 bits register
johnAlexander 3:4ed68a07058d 315 * @param[in] The register address
johnAlexander 3:4ed68a07058d 316 * @param[in] The pointer to the read data
johnAlexander 3:4ed68a07058d 317 */
johnAlexander 3:4ed68a07058d 318 void read_16bit_reg(uint8_t reg16_addr, uint16_t *reg16_data)
johnAlexander 3:4ed68a07058d 319 {
johnAlexander 3:4ed68a07058d 320 _dev_i2c->i2c_read((uint8_t *) reg16_data, exp_dev_addr, reg16_addr, 2);
johnAlexander 3:4ed68a07058d 321 }
johnAlexander 3:4ed68a07058d 322
johnAlexander 3:4ed68a07058d 323 /**
johnAlexander 3:4ed68a07058d 324 * @brief Write a 16 bits register
johnAlexander 3:4ed68a07058d 325 * @param[in] The register address
johnAlexander 3:4ed68a07058d 326 * @param[in] The pointer to the data to be written
johnAlexander 3:4ed68a07058d 327 */
johnAlexander 3:4ed68a07058d 328 void write_16bit_reg(uint8_t reg16_addr, uint16_t *reg16_data)
johnAlexander 3:4ed68a07058d 329 {
johnAlexander 3:4ed68a07058d 330 _dev_i2c->i2c_write((uint8_t *) reg16_data, exp_dev_addr, reg16_addr, 2);
johnAlexander 3:4ed68a07058d 331 }
johnAlexander 3:4ed68a07058d 332
johnAlexander 3:4ed68a07058d 333 private:
johnAlexander 3:4ed68a07058d 334 DevI2C *_dev_i2c;
johnAlexander 3:4ed68a07058d 335 uint16_t gpdr0_15; // local copy of bit direction reg
johnAlexander 3:4ed68a07058d 336 uint16_t gpsr0_15; // local copy of bit status reg
johnAlexander 3:4ed68a07058d 337 uint8_t exp_dev_addr; // expander device i2c addr
johnAlexander 3:4ed68a07058d 338 };
johnAlexander 3:4ed68a07058d 339
johnAlexander 3:4ed68a07058d 340 #endif // __STMPE1600_CLASS