Jim Carver / Mbed OS GarageDoorOpener

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Dependencies:   X_NUCLEO_COMMON ST_INTERFACES

sensors/VL53L0X/STMPE1600/Stmpe1600.h@18:a15bfe7aaebd, 2018-12-16 (annotated)

Committer:
screamer
Date:
Sun Dec 16 13:53:42 2018 +0000
Revision:
18:a15bfe7aaebd
Reorganize sensors

Who changed what in which revision?

UserRevisionLine numberNew contents of line
screamer 18:a15bfe7aaebd 1 /**
screamer 18:a15bfe7aaebd 2 ******************************************************************************
screamer 18:a15bfe7aaebd 3 * @file Stmpe1600.h
screamer 18:a15bfe7aaebd 4 * @author AST / EST
screamer 18:a15bfe7aaebd 5 * @version V0.0.1
screamer 18:a15bfe7aaebd 6 * @date 14-April-2015
screamer 18:a15bfe7aaebd 7 * @brief Header file for component stmpe1600
screamer 18:a15bfe7aaebd 8 ******************************************************************************
screamer 18:a15bfe7aaebd 9 * @attention
screamer 18:a15bfe7aaebd 10 *
screamer 18:a15bfe7aaebd 11 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
screamer 18:a15bfe7aaebd 12 *
screamer 18:a15bfe7aaebd 13 * Redistribution and use in source and binary forms, with or without modification,
screamer 18:a15bfe7aaebd 14 * are permitted provided that the following conditions are met:
screamer 18:a15bfe7aaebd 15 * 1. Redistributions of source code must retain the above copyright notice,
screamer 18:a15bfe7aaebd 16 * this list of conditions and the following disclaimer.
screamer 18:a15bfe7aaebd 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
screamer 18:a15bfe7aaebd 18 * this list of conditions and the following disclaimer in the documentation
screamer 18:a15bfe7aaebd 19 * and/or other materials provided with the distribution.
screamer 18:a15bfe7aaebd 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
screamer 18:a15bfe7aaebd 21 * may be used to endorse or promote products derived from this software
screamer 18:a15bfe7aaebd 22 * without specific prior written permission.
screamer 18:a15bfe7aaebd 23 *
screamer 18:a15bfe7aaebd 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
screamer 18:a15bfe7aaebd 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
screamer 18:a15bfe7aaebd 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
screamer 18:a15bfe7aaebd 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
screamer 18:a15bfe7aaebd 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
screamer 18:a15bfe7aaebd 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
screamer 18:a15bfe7aaebd 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
screamer 18:a15bfe7aaebd 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
screamer 18:a15bfe7aaebd 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
screamer 18:a15bfe7aaebd 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
screamer 18:a15bfe7aaebd 34 *
screamer 18:a15bfe7aaebd 35 ******************************************************************************
screamer 18:a15bfe7aaebd 36 */
screamer 18:a15bfe7aaebd 37 #ifndef __STMPE1600_CLASS
screamer 18:a15bfe7aaebd 38 #define __STMPE1600_CLASS
screamer 18:a15bfe7aaebd 39 /* Includes ------------------------------------------------------------------*/
screamer 18:a15bfe7aaebd 40 #include "DevI2C.h"
screamer 18:a15bfe7aaebd 41
screamer 18:a15bfe7aaebd 42 #define STMPE1600_DEF_DEVICE_ADDRESS (uint8_t)0x42*2
screamer 18:a15bfe7aaebd 43 #define STMPE1600_DEF_DIGIOUT_LVL 1
screamer 18:a15bfe7aaebd 44
screamer 18:a15bfe7aaebd 45 /** STMPE1600 registr map **/
screamer 18:a15bfe7aaebd 46 #define CHIP_ID_0_7 (uint8_t)0x00
screamer 18:a15bfe7aaebd 47 #define CHIP_ID_8_15 (uint8_t)0x01
screamer 18:a15bfe7aaebd 48 #define VERSION_ID (uint8_t)0x02
screamer 18:a15bfe7aaebd 49 #define SYS_CTRL (uint8_t)0x03
screamer 18:a15bfe7aaebd 50 #define IEGPIOR_0_7 (uint8_t)0x08
screamer 18:a15bfe7aaebd 51 #define IEGPIOR_8_15 (uint8_t)0x09
screamer 18:a15bfe7aaebd 52 #define ISGPIOR_0_7 (uint8_t)0x0A
screamer 18:a15bfe7aaebd 53 #define ISGPIOR_8_15 (uint8_t)0x0B
screamer 18:a15bfe7aaebd 54 #define GPMR_0_7 (uint8_t)0x10
screamer 18:a15bfe7aaebd 55 #define GPMR_8_15 (uint8_t)0x11
screamer 18:a15bfe7aaebd 56 #define GPSR_0_7 (uint8_t)0x12
screamer 18:a15bfe7aaebd 57 #define GPSR_8_15 (uint8_t)0x13
screamer 18:a15bfe7aaebd 58 #define GPDR_0_7 (uint8_t)0x14
screamer 18:a15bfe7aaebd 59 #define GPDR_8_15 (uint8_t)0x15
screamer 18:a15bfe7aaebd 60 #define GPIR_0_7 (uint8_t)0x16
screamer 18:a15bfe7aaebd 61 #define GPIR_8_15 (uint8_t)0x17
screamer 18:a15bfe7aaebd 62
screamer 18:a15bfe7aaebd 63 #define SOFT_RESET (uint8_t)0x80
screamer 18:a15bfe7aaebd 64
screamer 18:a15bfe7aaebd 65 typedef enum {
screamer 18:a15bfe7aaebd 66 // GPIO Expander pin names
screamer 18:a15bfe7aaebd 67 GPIO_0 = 0,
screamer 18:a15bfe7aaebd 68 GPIO_1,
screamer 18:a15bfe7aaebd 69 GPIO_2,
screamer 18:a15bfe7aaebd 70 GPIO_3,
screamer 18:a15bfe7aaebd 71 GPIO_4,
screamer 18:a15bfe7aaebd 72 GPIO_5,
screamer 18:a15bfe7aaebd 73 GPIO_6,
screamer 18:a15bfe7aaebd 74 GPIO_7,
screamer 18:a15bfe7aaebd 75 GPIO_8,
screamer 18:a15bfe7aaebd 76 GPIO_9,
screamer 18:a15bfe7aaebd 77 GPIO_10,
screamer 18:a15bfe7aaebd 78 GPIO_11,
screamer 18:a15bfe7aaebd 79 GPIO_12,
screamer 18:a15bfe7aaebd 80 GPIO_13,
screamer 18:a15bfe7aaebd 81 GPIO_14,
screamer 18:a15bfe7aaebd 82 GPIO_15,
screamer 18:a15bfe7aaebd 83 NOT_CON
screamer 18:a15bfe7aaebd 84 } ExpGpioPinName;
screamer 18:a15bfe7aaebd 85
screamer 18:a15bfe7aaebd 86 typedef enum {
screamer 18:a15bfe7aaebd 87 INPUT = 0,
screamer 18:a15bfe7aaebd 88 OUTPUT,
screamer 18:a15bfe7aaebd 89 NOT_CONNECTED
screamer 18:a15bfe7aaebd 90 } ExpGpioPinDirection;
screamer 18:a15bfe7aaebd 91
screamer 18:a15bfe7aaebd 92 /* Classes -------------------------------------------------------------------*/
screamer 18:a15bfe7aaebd 93 /** Class representing a single stmpe1600 GPIO expander output pin
screamer 18:a15bfe7aaebd 94 */
screamer 18:a15bfe7aaebd 95 class Stmpe1600DigiOut
screamer 18:a15bfe7aaebd 96 {
screamer 18:a15bfe7aaebd 97
screamer 18:a15bfe7aaebd 98 public:
screamer 18:a15bfe7aaebd 99 /** Constructor
screamer 18:a15bfe7aaebd 100 * @param[in] &i2c device I2C to be used for communication
screamer 18:a15bfe7aaebd 101 * @param[in] outpinname the desired out pin name to be created
screamer 18:a15bfe7aaebd 102 * @param[in] DevAddr the stmpe1600 I2C device address (deft STMPE1600_DEF_DEVICE_ADDRESS)
screamer 18:a15bfe7aaebd 103 * @param[in] lvl the default ot pin level
screamer 18:a15bfe7aaebd 104 */
screamer 18:a15bfe7aaebd 105 Stmpe1600DigiOut(DevI2C *i2c, ExpGpioPinName out_pin_name, uint8_t dev_addr = STMPE1600_DEF_DEVICE_ADDRESS,
screamer 18:a15bfe7aaebd 106 bool lvl = STMPE1600_DEF_DIGIOUT_LVL) : _dev_i2c(i2c), exp_dev_addr(dev_addr), exp_pin_name(out_pin_name)
screamer 18:a15bfe7aaebd 107 {
screamer 18:a15bfe7aaebd 108 uint8_t data[2];
screamer 18:a15bfe7aaebd 109
screamer 18:a15bfe7aaebd 110 if (exp_pin_name == NOT_CON) {
screamer 18:a15bfe7aaebd 111 return;
screamer 18:a15bfe7aaebd 112 }
screamer 18:a15bfe7aaebd 113 /* set the exp_pin_name as output */
screamer 18:a15bfe7aaebd 114 _dev_i2c->i2c_read(data, exp_dev_addr, GPDR_0_7, 1);
screamer 18:a15bfe7aaebd 115 _dev_i2c->i2c_read(&data[1], exp_dev_addr, GPDR_8_15, 1);
screamer 18:a15bfe7aaebd 116 * (uint16_t *) data = * (uint16_t *) data | (1 << (uint16_t) exp_pin_name); // set gpio as out
screamer 18:a15bfe7aaebd 117 _dev_i2c->i2c_write(data, exp_dev_addr, GPDR_0_7, 1);
screamer 18:a15bfe7aaebd 118 _dev_i2c->i2c_write(&data[1], exp_dev_addr, GPDR_8_15, 1);
screamer 18:a15bfe7aaebd 119 write(lvl);
screamer 18:a15bfe7aaebd 120 }
screamer 18:a15bfe7aaebd 121
screamer 18:a15bfe7aaebd 122 /**
screamer 18:a15bfe7aaebd 123 * @brief Write on the out pin
screamer 18:a15bfe7aaebd 124 * @param[in] lvl level to write
screamer 18:a15bfe7aaebd 125 * @return 0 on Success
screamer 18:a15bfe7aaebd 126 */
screamer 18:a15bfe7aaebd 127 void write(int lvl)
screamer 18:a15bfe7aaebd 128 {
screamer 18:a15bfe7aaebd 129 uint8_t data[2];
screamer 18:a15bfe7aaebd 130
screamer 18:a15bfe7aaebd 131 if (exp_pin_name == NOT_CON) {
screamer 18:a15bfe7aaebd 132 return;
screamer 18:a15bfe7aaebd 133 }
screamer 18:a15bfe7aaebd 134 /* set the exp_pin_name state to lvl */
screamer 18:a15bfe7aaebd 135 _dev_i2c->i2c_read(data, exp_dev_addr, GPSR_0_7, 2);
screamer 18:a15bfe7aaebd 136 * (uint16_t *) data = * (uint16_t *) data & (uint16_t)(~(1 << (uint16_t) exp_pin_name)); // set pin mask
screamer 18:a15bfe7aaebd 137 if (lvl) {
screamer 18:a15bfe7aaebd 138 * (uint16_t *) data = * (uint16_t *) data | (uint16_t)(1 << (uint16_t) exp_pin_name);
screamer 18:a15bfe7aaebd 139 }
screamer 18:a15bfe7aaebd 140 _dev_i2c->i2c_write(data, exp_dev_addr, GPSR_0_7, 2);
screamer 18:a15bfe7aaebd 141 }
screamer 18:a15bfe7aaebd 142
screamer 18:a15bfe7aaebd 143 /**
screamer 18:a15bfe7aaebd 144 * @brief Overload assignement operator
screamer 18:a15bfe7aaebd 145 */
screamer 18:a15bfe7aaebd 146 Stmpe1600DigiOut &operator= (int lvl)
screamer 18:a15bfe7aaebd 147 {
screamer 18:a15bfe7aaebd 148 write(lvl);
screamer 18:a15bfe7aaebd 149 return *this;
screamer 18:a15bfe7aaebd 150 }
screamer 18:a15bfe7aaebd 151
screamer 18:a15bfe7aaebd 152 private:
screamer 18:a15bfe7aaebd 153 DevI2C *_dev_i2c;
screamer 18:a15bfe7aaebd 154 uint8_t exp_dev_addr;
screamer 18:a15bfe7aaebd 155 ExpGpioPinName exp_pin_name;
screamer 18:a15bfe7aaebd 156 };
screamer 18:a15bfe7aaebd 157
screamer 18:a15bfe7aaebd 158 /* Classes -------------------------------------------------------------------*/
screamer 18:a15bfe7aaebd 159 /** Class representing a single stmpe1600 GPIO expander input pin
screamer 18:a15bfe7aaebd 160 */
screamer 18:a15bfe7aaebd 161 class Stmpe1600DigiIn
screamer 18:a15bfe7aaebd 162 {
screamer 18:a15bfe7aaebd 163 public:
screamer 18:a15bfe7aaebd 164 /** Constructor
screamer 18:a15bfe7aaebd 165 * @param[in] &i2c device I2C to be used for communication
screamer 18:a15bfe7aaebd 166 * @param[in] inpinname the desired input pin name to be created
screamer 18:a15bfe7aaebd 167 * @param[in] DevAddr the stmpe1600 I2C device addres (deft STMPE1600_DEF_DEVICE_ADDRESS)
screamer 18:a15bfe7aaebd 168 */
screamer 18:a15bfe7aaebd 169 Stmpe1600DigiIn(DevI2C *i2c, ExpGpioPinName in_pin_name,
screamer 18:a15bfe7aaebd 170 uint8_t dev_addr = STMPE1600_DEF_DEVICE_ADDRESS) : _dev_i2c(i2c), exp_dev_addr(dev_addr),
screamer 18:a15bfe7aaebd 171 exp_pin_name(in_pin_name)
screamer 18:a15bfe7aaebd 172 {
screamer 18:a15bfe7aaebd 173 uint8_t data[2];
screamer 18:a15bfe7aaebd 174
screamer 18:a15bfe7aaebd 175 if (exp_pin_name == NOT_CON) {
screamer 18:a15bfe7aaebd 176 return;
screamer 18:a15bfe7aaebd 177 }
screamer 18:a15bfe7aaebd 178 /* set the exp_pin_name as input pin direction */
screamer 18:a15bfe7aaebd 179 _dev_i2c->i2c_read(data, exp_dev_addr, GPDR_0_7, 2);
screamer 18:a15bfe7aaebd 180 * (uint16_t *) data = * (uint16_t *) data & (uint16_t)(~(1 << (uint16_t) exp_pin_name)); // set gpio as in
screamer 18:a15bfe7aaebd 181 _dev_i2c->i2c_write(data, exp_dev_addr, GPDR_0_7, 2);
screamer 18:a15bfe7aaebd 182 }
screamer 18:a15bfe7aaebd 183
screamer 18:a15bfe7aaebd 184 /**
screamer 18:a15bfe7aaebd 185 * @brief Read the input pin
screamer 18:a15bfe7aaebd 186 * @return The pin logical state 0 or 1
screamer 18:a15bfe7aaebd 187 */
screamer 18:a15bfe7aaebd 188 bool read()
screamer 18:a15bfe7aaebd 189 {
screamer 18:a15bfe7aaebd 190 uint8_t data[2];
screamer 18:a15bfe7aaebd 191
screamer 18:a15bfe7aaebd 192 if (exp_pin_name == NOT_CON) {
screamer 18:a15bfe7aaebd 193 return false;
screamer 18:a15bfe7aaebd 194 }
screamer 18:a15bfe7aaebd 195 /* read the exp_pin_name */
screamer 18:a15bfe7aaebd 196 _dev_i2c->i2c_read(data, exp_dev_addr, GPMR_0_7, 2);
screamer 18:a15bfe7aaebd 197 * (uint16_t *) data = * (uint16_t *) data & (uint16_t)(1 << (uint16_t) exp_pin_name); // mask the in gpio
screamer 18:a15bfe7aaebd 198 if (data[0] || data[1]) {
screamer 18:a15bfe7aaebd 199 return true;
screamer 18:a15bfe7aaebd 200 }
screamer 18:a15bfe7aaebd 201 return false;
screamer 18:a15bfe7aaebd 202 }
screamer 18:a15bfe7aaebd 203
screamer 18:a15bfe7aaebd 204 operator int()
screamer 18:a15bfe7aaebd 205 {
screamer 18:a15bfe7aaebd 206 return read();
screamer 18:a15bfe7aaebd 207 }
screamer 18:a15bfe7aaebd 208
screamer 18:a15bfe7aaebd 209 private:
screamer 18:a15bfe7aaebd 210 DevI2C *_dev_i2c;
screamer 18:a15bfe7aaebd 211 uint8_t exp_dev_addr;
screamer 18:a15bfe7aaebd 212 ExpGpioPinName exp_pin_name;
screamer 18:a15bfe7aaebd 213 };
screamer 18:a15bfe7aaebd 214
screamer 18:a15bfe7aaebd 215 /* Classes -------------------------------------------------------------------*/
screamer 18:a15bfe7aaebd 216 /** Class representing a whole stmpe1600 component (16 gpio)
screamer 18:a15bfe7aaebd 217 */
screamer 18:a15bfe7aaebd 218 class Stmpe1600
screamer 18:a15bfe7aaebd 219 {
screamer 18:a15bfe7aaebd 220
screamer 18:a15bfe7aaebd 221 public:
screamer 18:a15bfe7aaebd 222 /** Constructor
screamer 18:a15bfe7aaebd 223 * @param[in] &i2c device I2C to be used for communication
screamer 18:a15bfe7aaebd 224 * @param[in] DevAddr the stmpe1600 I2C device addres (deft STMPE1600_DEF_DEVICE_ADDRESS)
screamer 18:a15bfe7aaebd 225 */
screamer 18:a15bfe7aaebd 226 Stmpe1600(DevI2C *i2c, uint8_t dev_addr = STMPE1600_DEF_DEVICE_ADDRESS) : _dev_i2c(i2c)
screamer 18:a15bfe7aaebd 227 {
screamer 18:a15bfe7aaebd 228 exp_dev_addr = dev_addr;
screamer 18:a15bfe7aaebd 229 write_sys_ctrl(SOFT_RESET);
screamer 18:a15bfe7aaebd 230
screamer 18:a15bfe7aaebd 231 gpdr0_15 = (uint16_t) 0; // gpio dir all IN
screamer 18:a15bfe7aaebd 232 write_16bit_reg(GPDR_0_7, &gpdr0_15);
screamer 18:a15bfe7aaebd 233 gpsr0_15 = (uint16_t) 0x0ffff; // gpio status all 1
screamer 18:a15bfe7aaebd 234 write_16bit_reg(GPSR_0_7, &gpsr0_15);
screamer 18:a15bfe7aaebd 235 }
screamer 18:a15bfe7aaebd 236
screamer 18:a15bfe7aaebd 237 /**
screamer 18:a15bfe7aaebd 238 * @brief Write the SYS_CTRL register
screamer 18:a15bfe7aaebd 239 * @param[in] Data to be written (bit fields)
screamer 18:a15bfe7aaebd 240 */
screamer 18:a15bfe7aaebd 241 void write_sys_ctrl(uint8_t data) // data = SOFT_RESET reset the device
screamer 18:a15bfe7aaebd 242 {
screamer 18:a15bfe7aaebd 243 _dev_i2c->i2c_write(&data, exp_dev_addr, SYS_CTRL, 1);
screamer 18:a15bfe7aaebd 244 }
screamer 18:a15bfe7aaebd 245
screamer 18:a15bfe7aaebd 246 /**
screamer 18:a15bfe7aaebd 247 * @brief Set the out pin
screamer 18:a15bfe7aaebd 248 * @param[in] The pin name
screamer 18:a15bfe7aaebd 249 * @return 0 on Success
screamer 18:a15bfe7aaebd 250 */
screamer 18:a15bfe7aaebd 251 bool set_gpio(ExpGpioPinName pin_name)
screamer 18:a15bfe7aaebd 252 {
screamer 18:a15bfe7aaebd 253 if (pin_name == NOT_CON) {
screamer 18:a15bfe7aaebd 254 return true;
screamer 18:a15bfe7aaebd 255 }
screamer 18:a15bfe7aaebd 256 gpsr0_15 = gpsr0_15 | ((uint16_t) 0x0001 << pin_name);
screamer 18:a15bfe7aaebd 257 write_16bit_reg(GPSR_0_7, &gpsr0_15);
screamer 18:a15bfe7aaebd 258 return false;
screamer 18:a15bfe7aaebd 259 }
screamer 18:a15bfe7aaebd 260
screamer 18:a15bfe7aaebd 261 /**
screamer 18:a15bfe7aaebd 262 * @brief Clear the out pin
screamer 18:a15bfe7aaebd 263 * @param[in] The pin name
screamer 18:a15bfe7aaebd 264 * @return 0 on Success
screamer 18:a15bfe7aaebd 265 */
screamer 18:a15bfe7aaebd 266 bool clear_gpio(ExpGpioPinName pin_name)
screamer 18:a15bfe7aaebd 267 {
screamer 18:a15bfe7aaebd 268 if (pin_name == NOT_CON) {
screamer 18:a15bfe7aaebd 269 return true;
screamer 18:a15bfe7aaebd 270 }
screamer 18:a15bfe7aaebd 271 gpsr0_15 = gpsr0_15 & (~((uint16_t) 0x0001 << pin_name));
screamer 18:a15bfe7aaebd 272 write_16bit_reg(GPSR_0_7, &gpsr0_15);
screamer 18:a15bfe7aaebd 273 return false;
screamer 18:a15bfe7aaebd 274 }
screamer 18:a15bfe7aaebd 275
screamer 18:a15bfe7aaebd 276 /**
screamer 18:a15bfe7aaebd 277 * @brief Read the input pin
screamer 18:a15bfe7aaebd 278 * @param[in] The pin name
screamer 18:a15bfe7aaebd 279 * @return The logical pin level
screamer 18:a15bfe7aaebd 280 */
screamer 18:a15bfe7aaebd 281 bool read_gpio(ExpGpioPinName pin_name)
screamer 18:a15bfe7aaebd 282 {
screamer 18:a15bfe7aaebd 283 uint16_t gpmr0_15;
screamer 18:a15bfe7aaebd 284 if (pin_name == NOT_CON) {
screamer 18:a15bfe7aaebd 285 return true;
screamer 18:a15bfe7aaebd 286 }
screamer 18:a15bfe7aaebd 287 read_16bit_reg(GPMR_0_7, &gpmr0_15);
screamer 18:a15bfe7aaebd 288 gpmr0_15 = gpmr0_15 & ((uint16_t) 0x0001 << pin_name);
screamer 18:a15bfe7aaebd 289 if (gpmr0_15) {
screamer 18:a15bfe7aaebd 290 return true;
screamer 18:a15bfe7aaebd 291 }
screamer 18:a15bfe7aaebd 292 return false;
screamer 18:a15bfe7aaebd 293 }
screamer 18:a15bfe7aaebd 294
screamer 18:a15bfe7aaebd 295 /**
screamer 18:a15bfe7aaebd 296 * @brief Set the pin direction
screamer 18:a15bfe7aaebd 297 * @param[in] The pin name
screamer 18:a15bfe7aaebd 298 * @param[in] The pin direction
screamer 18:a15bfe7aaebd 299 * @return 0 on success
screamer 18:a15bfe7aaebd 300 */
screamer 18:a15bfe7aaebd 301 bool set_gpio_dir(ExpGpioPinName pin_name, ExpGpioPinDirection pin_dir)
screamer 18:a15bfe7aaebd 302 {
screamer 18:a15bfe7aaebd 303 if (pin_name == NOT_CON || pin_dir == NOT_CONNECTED) {
screamer 18:a15bfe7aaebd 304 return true;
screamer 18:a15bfe7aaebd 305 }
screamer 18:a15bfe7aaebd 306 gpdr0_15 = gpdr0_15 & (~((uint16_t) 0x0001 << pin_name)); // clear the Pin
screamer 18:a15bfe7aaebd 307 gpdr0_15 = gpdr0_15 | ((uint16_t) pin_dir << pin_name);
screamer 18:a15bfe7aaebd 308 write_16bit_reg(GPDR_0_7, &gpdr0_15);
screamer 18:a15bfe7aaebd 309 return false;
screamer 18:a15bfe7aaebd 310 }
screamer 18:a15bfe7aaebd 311
screamer 18:a15bfe7aaebd 312 /**
screamer 18:a15bfe7aaebd 313 * @brief Read a 16 bits register
screamer 18:a15bfe7aaebd 314 * @param[in] The register address
screamer 18:a15bfe7aaebd 315 * @param[in] The pointer to the read data
screamer 18:a15bfe7aaebd 316 */
screamer 18:a15bfe7aaebd 317 void read_16bit_reg(uint8_t reg16_addr, uint16_t *reg16_data)
screamer 18:a15bfe7aaebd 318 {
screamer 18:a15bfe7aaebd 319 _dev_i2c->i2c_read((uint8_t *) reg16_data, exp_dev_addr, reg16_addr, 2);
screamer 18:a15bfe7aaebd 320 }
screamer 18:a15bfe7aaebd 321
screamer 18:a15bfe7aaebd 322 /**
screamer 18:a15bfe7aaebd 323 * @brief Write a 16 bits register
screamer 18:a15bfe7aaebd 324 * @param[in] The register address
screamer 18:a15bfe7aaebd 325 * @param[in] The pointer to the data to be written
screamer 18:a15bfe7aaebd 326 */
screamer 18:a15bfe7aaebd 327 void write_16bit_reg(uint8_t reg16_addr, uint16_t *reg16_data)
screamer 18:a15bfe7aaebd 328 {
screamer 18:a15bfe7aaebd 329 _dev_i2c->i2c_write((uint8_t *) reg16_data, exp_dev_addr, reg16_addr, 2);
screamer 18:a15bfe7aaebd 330 }
screamer 18:a15bfe7aaebd 331
screamer 18:a15bfe7aaebd 332 private:
screamer 18:a15bfe7aaebd 333 DevI2C *_dev_i2c;
screamer 18:a15bfe7aaebd 334 uint16_t gpdr0_15; // local copy of bit direction reg
screamer 18:a15bfe7aaebd 335 uint16_t gpsr0_15; // local copy of bit status reg
screamer 18:a15bfe7aaebd 336 uint8_t exp_dev_addr; // expander device i2c addr
screamer 18:a15bfe7aaebd 337 };
screamer 18:a15bfe7aaebd 338
screamer 18:a15bfe7aaebd 339 #endif // __STMPE1600_CLASS