diff options
author | Ryan <fauxpark@gmail.com> | 2023-09-14 13:57:10 +1000 |
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committer | GitHub <noreply@github.com> | 2023-09-14 13:57:10 +1000 |
commit | f9ed1e3ebc66b568a20848ae0f07052fbef5e4a8 (patch) | |
tree | 10284c5b25b8c8c517995b42c23b087a9f6e0ddd /keyboards/fc660c/ad5258.c | |
parent | 20cbe372a68762e0e09072bc6a3bdd987f7ab988 (diff) |
fc660c/fc980c: clean up actuation point adjustment code (#21964)
Co-authored-by: Joel Challis <git@zvecr.com>
Diffstat (limited to 'keyboards/fc660c/ad5258.c')
-rw-r--r-- | keyboards/fc660c/ad5258.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/keyboards/fc660c/ad5258.c b/keyboards/fc660c/ad5258.c new file mode 100644 index 0000000000..b1df75789b --- /dev/null +++ b/keyboards/fc660c/ad5258.c @@ -0,0 +1,52 @@ +/* +Copyright 2017 Balz Guenat +based on work by Jun Wako <wakojun@gmail.com> + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "ad5258.h" +#include "i2c_master.h" + +/////////////////////////////////////////////////////////////////////////////// +// +// AD5258 I2C digital potentiometer +// http://www.analog.com/media/en/technical-documentation/data-sheets/AD5258.pdf +// +#define AD5258_I2C_ADDRESS 0x18 +#define AD5258_INST_RDAC 0x00 +#define AD5258_INST_EEPROM 0x20 + +void ad5258_init(void) { + i2c_init(); +} + +uint8_t ad5258_read_rdac(void) { + // read RDAC register + uint8_t ret = 0; + i2c_readReg(AD5258_I2C_ADDRESS, AD5258_INST_RDAC, &ret, 1, 100); + return ret; +} + +uint8_t ad5258_read_eeprom(void) { + uint8_t ret = 0; + i2c_readReg(AD5258_I2C_ADDRESS, AD5258_INST_EEPROM, &ret, 1, 100); + return ret; +} + +void ad5258_write_rdac(uint8_t rdac) { + // write RDAC register: + uint8_t data = rdac & 0x3F; + i2c_writeReg(AD5258_I2C_ADDRESS, AD5258_INST_RDAC, &data, 1, 100); +} |