From 412a8f99928beff605805807b0f07f6bf8d0a965 Mon Sep 17 00:00:00 2001 From: Uros Majstorovic Date: Fri, 13 May 2022 12:45:53 +0200 Subject: code rename --- fw/fe310/eos/dev/bq25895.c | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 fw/fe310/eos/dev/bq25895.c (limited to 'fw/fe310/eos/dev/bq25895.c') diff --git a/fw/fe310/eos/dev/bq25895.c b/fw/fe310/eos/dev/bq25895.c new file mode 100644 index 0000000..b290926 --- /dev/null +++ b/fw/fe310/eos/dev/bq25895.c @@ -0,0 +1,43 @@ +#include +#include +#include + +#include "eos.h" +#include "pwr.h" +#include "i2c.h" +#include "bq25895.h" + +static int reg_read(uint8_t reg, uint8_t *data) { + return eos_i2c_read8(BQ25895_ADDR, reg, data, 1); +} + +static int reg_write(uint8_t reg, uint8_t data) { + return eos_i2c_write8(BQ25895_ADDR, reg, &data, 1); +} + +int eos_bq25895_init(uint8_t wakeup_cause) { + int rst = (wakeup_cause == EOS_PWR_WAKE_RST); + int i, rv = EOS_OK; + uint8_t data = 0; + + if (rst) { + rv = reg_write(0x14, 0x80); // reset + if (rv) printf("I2C ERROR 0x14\n"); + rv = reg_write(0x14, 0x00); // disable watchdog + if (rv) printf("I2C ERROR 0x14\n"); + rv = reg_write(0x07, 0x8d); // disable watchdog + if (rv) printf("I2C ERROR 0x07\n"); + rv = reg_write(0x00, 0x28); // 2.1A input current + if (rv) printf("I2C ERROR 0x00\n"); + rv = reg_write(0x02, 0x30); // enable ICO, disaable MaxCharge and D+/D- + if (rv) printf("I2C ERROR 0x02\n"); + } + + printf("BQ25895:\n"); + for (i=0; i<0x15; i++) { + rv = reg_read(i, &data); + if (!rv) printf("REG%02x: %02x\n", i, data); + } + + return EOS_OK; +} -- cgit v1.2.3