amiro-lld / source / bq27500 / v1 / alld_bq27500_v1.c @ 9797f02a
History | View | Annotate | Download (8.635 KB)
| 1 |
/*
|
|---|---|
| 2 |
AMiRo-LLD is a compilation of low-level hardware drivers for the Autonomous Mini Robot (AMiRo) platform.
|
| 3 |
Copyright (C) 2016..2019 Thomas Schöpping et al.
|
| 4 |
|
| 5 |
This program is free software: you can redistribute it and/or modify
|
| 6 |
it under the terms of the GNU Lesser General Public License as published by
|
| 7 |
the Free Software Foundation, either version 3 of the License, or
|
| 8 |
(at your option) any later version.
|
| 9 |
|
| 10 |
This program is distributed in the hope that it will be useful,
|
| 11 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 12 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 13 |
GNU Lesser General Public License for more details.
|
| 14 |
|
| 15 |
You should have received a copy of the GNU Lesser General Public License
|
| 16 |
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
| 17 |
*/
|
| 18 |
|
| 19 |
/**
|
| 20 |
* @file alld_bq27500_v1.c
|
| 21 |
* @brief Fuel Gauge function implementations.
|
| 22 |
*
|
| 23 |
* @addtogroup lld_gauge
|
| 24 |
* @{
|
| 25 |
*/
|
| 26 |
|
| 27 |
#include <alld_bq27500.h> |
| 28 |
|
| 29 |
#if (defined(AMIROLLD_CFG_BQ27500) && (AMIROLLD_CFG_BQ27500 == 1)) || defined(__DOXYGEN__) |
| 30 |
|
| 31 |
#include <string.h> |
| 32 |
|
| 33 |
/******************************************************************************/
|
| 34 |
/* LOCAL DEFINITIONS */
|
| 35 |
/******************************************************************************/
|
| 36 |
|
| 37 |
/******************************************************************************/
|
| 38 |
/* EXPORTED VARIABLES */
|
| 39 |
/******************************************************************************/
|
| 40 |
|
| 41 |
/******************************************************************************/
|
| 42 |
/* LOCAL TYPES */
|
| 43 |
/******************************************************************************/
|
| 44 |
|
| 45 |
/******************************************************************************/
|
| 46 |
/* LOCAL VARIABLES */
|
| 47 |
/******************************************************************************/
|
| 48 |
|
| 49 |
/******************************************************************************/
|
| 50 |
/* LOCAL FUNCTIONS */
|
| 51 |
/******************************************************************************/
|
| 52 |
|
| 53 |
/******************************************************************************/
|
| 54 |
/* EXPORTED FUNCTIONS */
|
| 55 |
/******************************************************************************/
|
| 56 |
|
| 57 |
/**
|
| 58 |
* @brief Read the battery low Gpio pin.
|
| 59 |
* @param[in] bqd The bq27500 driver
|
| 60 |
* @param[out] batlow The battery low state
|
| 61 |
*
|
| 62 |
* @return The return status indicates whether the function call was succesfull or a timeout occurred.
|
| 63 |
*/
|
| 64 |
apalExitStatus_t bq27500_lld_read_batlow(const BQ27500Driver* const bq27500, bq27500_lld_batlow_t* const batlow) |
| 65 |
{
|
| 66 |
apalDbgAssert(bq27500 != NULL);
|
| 67 |
apalDbgAssert(batlow != NULL);
|
| 68 |
|
| 69 |
apalControlGpioState_t gpio_state; |
| 70 |
apalExitStatus_t status = apalControlGpioGet(bq27500->gpio_batlow, &gpio_state); |
| 71 |
*batlow = (gpio_state == APAL_GPIO_ON) ? BQ27500_LLD_BATTERY_LOW : BQ27500_LLD_BATTERY_NOT_LOW; |
| 72 |
return status;
|
| 73 |
} |
| 74 |
|
| 75 |
/**
|
| 76 |
* @brief Read the battery good Gpio pin.
|
| 77 |
* @param[in] bqd The bq27500 driver
|
| 78 |
* @param[out] batgood The battery good state
|
| 79 |
*
|
| 80 |
* @return The return status indicates whether the function call was succesfull or a timeout occurred.
|
| 81 |
*/
|
| 82 |
apalExitStatus_t bq27500_lld_read_batgood(const BQ27500Driver* const bq27500, bq27500_lld_batgood_t* const batgood) |
| 83 |
{
|
| 84 |
apalDbgAssert(bq27500 != NULL);
|
| 85 |
apalDbgAssert(batgood != NULL);
|
| 86 |
|
| 87 |
apalControlGpioState_t gpio_state; |
| 88 |
apalExitStatus_t status = apalControlGpioGet(bq27500->gpio_batgood, &gpio_state); |
| 89 |
*batgood = (gpio_state == APAL_GPIO_ON) ? BQ27500_LLD_BATTERY_GOOD : BQ27500_LLD_BATTERY_NOT_GOOD; |
| 90 |
return status;
|
| 91 |
} |
| 92 |
|
| 93 |
/**
|
| 94 |
* @brief Execute one of the standard commands.
|
| 95 |
* @param[in] i2cd The I2C Driver
|
| 96 |
* @param[in] cmd The command to be executed
|
| 97 |
* @param[out] dst The return value of the command
|
| 98 |
* @param[in] timeout Timeout of the I2C bus
|
| 99 |
*
|
| 100 |
* @return The return status indicates whether the function call was succesfull or a timeout occurred.
|
| 101 |
*/
|
| 102 |
apalExitStatus_t bq27500_lld_std_command(const BQ27500Driver* const bq27500, const bq27500_lld_std_command_t cmd, uint16_t* const dst, const apalTime_t timeout) |
| 103 |
{
|
| 104 |
apalDbgAssert(bq27500 != NULL);
|
| 105 |
apalDbgAssert(dst != NULL);
|
| 106 |
|
| 107 |
uint8_t buffer[2];
|
| 108 |
apalExitStatus_t status = apalI2CMasterTransmit(bq27500->i2cd, BQ27500_LLD_I2C_ADDR, (uint8_t*)&cmd, 1, buffer, 2, timeout); |
| 109 |
*dst = (uint16_t)((buffer[1] << 8) | buffer[0]); |
| 110 |
return status;
|
| 111 |
} |
| 112 |
|
| 113 |
/**
|
| 114 |
* @brief Execute one of the control sub commands.
|
| 115 |
* @param[in] i2cd The I2C Driver
|
| 116 |
* @param[in] cmd The sub command to be executed
|
| 117 |
* @param[in] timeout Timeout of the I2C bus
|
| 118 |
*
|
| 119 |
* @return The return status indicates whether the function call was succesfull or a timeout occurred.
|
| 120 |
*/
|
| 121 |
apalExitStatus_t bq27500_lld_sub_command_call(const BQ27500Driver* const bq27500, const bq27500_lld_control_subcmd_t cmd, const apalTime_t timeout) |
| 122 |
{
|
| 123 |
apalDbgAssert(bq27500 != NULL);
|
| 124 |
|
| 125 |
uint8_t buffer[3] = {BQ27500_LLD_STD_CMD_Control, (uint8_t)(cmd & 0x00FFu), (uint8_t)((cmd & 0xFF00u) >> 8)}; |
| 126 |
return apalI2CMasterTransmit(bq27500->i2cd, BQ27500_LLD_I2C_ADDR, buffer, 3, NULL, 0, timeout); |
| 127 |
} |
| 128 |
|
| 129 |
/**
|
| 130 |
* @brief Read the return value of a previously executed control sub command.
|
| 131 |
* @param[in] i2cd The I2C Driver
|
| 132 |
* @param[out] data The data read from the sub command
|
| 133 |
* @param[in] timeout Timeout of the I2C bus
|
| 134 |
*
|
| 135 |
* @return The return status indicates whether the function call was succesfull or a timeout occurred.
|
| 136 |
*/
|
| 137 |
apalExitStatus_t bq27500_lld_sub_command_read(const BQ27500Driver* const bq27500, uint16_t* const data, const apalTime_t timeout) |
| 138 |
{
|
| 139 |
apalDbgAssert(bq27500 != NULL);
|
| 140 |
apalDbgAssert(data != NULL);
|
| 141 |
|
| 142 |
uint8_t buffer[3] = {0, 0, 0}; |
| 143 |
apalExitStatus_t status = apalI2CMasterTransmit(bq27500->i2cd, BQ27500_LLD_I2C_ADDR, buffer, 1, &buffer[1], 2, timeout); |
| 144 |
*data = (uint16_t)((buffer[2] << 8) | buffer[1]); |
| 145 |
return status;
|
| 146 |
} |
| 147 |
|
| 148 |
/**
|
| 149 |
* @brief Execute on of the extended commands.
|
| 150 |
* @param[in] i2cd The I2C Driver
|
| 151 |
* @param[in] cmd The ext command to be executed
|
| 152 |
* @param[in] rw Use the command in read or write mode
|
| 153 |
* @param[in] buffer A buffer for input and output
|
| 154 |
* @param[in] length length of the buffer
|
| 155 |
* @param[in] offset Offset for reading or writing
|
| 156 |
* @param[in] timeout Timeout of the I2C bus
|
| 157 |
*
|
| 158 |
* @return The return status indicates whether the function call was succesfull or a timeout occurred.
|
| 159 |
*/
|
| 160 |
apalExitStatus_t bq27500_lld_ext_command(const BQ27500Driver* const bq27500, const bq27500_lld_ext_command_t cmd, const bq27500_lld_ext_cmd_access_t rw, uint8_t* const buffer, const uint8_t length, const uint8_t offset, const apalTime_t timeout) |
| 161 |
{
|
| 162 |
apalDbgAssert(bq27500 != NULL);
|
| 163 |
apalDbgAssert(buffer != NULL);
|
| 164 |
|
| 165 |
uint8_t in_buffer[1+length];
|
| 166 |
in_buffer[0] = cmd + offset;
|
| 167 |
if (rw == BQ27500_LLD_EXT_CMD_WRITE) {
|
| 168 |
memcpy(in_buffer+1, buffer, length);
|
| 169 |
} |
| 170 |
uint8_t txbytes = 1 + ((rw == BQ27500_LLD_EXT_CMD_WRITE) ? length : 0); |
| 171 |
uint8_t rxbytes = ((rw == BQ27500_LLD_EXT_CMD_READ) ? length : 0);
|
| 172 |
return apalI2CMasterTransmit(bq27500->i2cd, BQ27500_LLD_I2C_ADDR, in_buffer, txbytes, ((rw == BQ27500_LLD_EXT_CMD_READ) ? buffer : NULL), rxbytes, timeout); |
| 173 |
} |
| 174 |
|
| 175 |
/**
|
| 176 |
* @brief Send data via the CTNL command.
|
| 177 |
* @param[in] i2cd The I2C Driver
|
| 178 |
* @param[in] data Data to be sent
|
| 179 |
* @param[in] timeout Timeout of the I2C bus
|
| 180 |
*
|
| 181 |
* @return The return status indicates whether the function call was succesfull or a timeout occurred.
|
| 182 |
*/
|
| 183 |
apalExitStatus_t bq27500_lld_send_ctnl_data(const BQ27500Driver* const bq27500, const uint16_t data, const apalTime_t timeout) |
| 184 |
{
|
| 185 |
apalDbgAssert(bq27500 != NULL);
|
| 186 |
|
| 187 |
uint8_t buffer[3] = {BQ27500_LLD_STD_CMD_Control, (uint8_t)(data & 0x00FFu), (uint8_t)((data & 0xFF00u) >> 8)}; |
| 188 |
return apalI2CMasterTransmit(bq27500->i2cd, BQ27500_LLD_I2C_ADDR, buffer, 3, NULL, 0, timeout); |
| 189 |
} |
| 190 |
|
| 191 |
/**
|
| 192 |
* @bried Computes the checksum of blockdata.
|
| 193 |
* @param[in] blockdata Data to compute the checksum of (32 byte buffer)
|
| 194 |
* @param[out] sum The computed checksum
|
| 195 |
*
|
| 196 |
* @return The return status indicates whether the function call was succesfull or a timeout occurred.
|
| 197 |
*/
|
| 198 |
apalExitStatus_t bq27500_lld_compute_blockdata_checksum(const uint8_t* const blockdata, uint8_t* const sum) |
| 199 |
{
|
| 200 |
apalDbgAssert(blockdata != NULL);
|
| 201 |
apalDbgAssert(sum != NULL);
|
| 202 |
|
| 203 |
*sum = 0;
|
| 204 |
for (uint8_t dataIdx = 0; dataIdx < 32; dataIdx++) { |
| 205 |
*sum += blockdata[dataIdx]; |
| 206 |
} |
| 207 |
*sum = 0xFF - *sum;
|
| 208 |
return APAL_STATUS_SUCCESS;
|
| 209 |
} |
| 210 |
|
| 211 |
#endif /* defined(AMIROLLD_CFG_BQ27500) && (AMIROLLD_CFG_BQ27500 == 1) */ |
| 212 |
|
| 213 |
/** @} */
|