diff options
Diffstat (limited to 'driver/ina2xx.c')
| -rw-r--r-- | driver/ina2xx.c | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/driver/ina2xx.c b/driver/ina2xx.c deleted file mode 100644 index cf4389ba49..0000000000 --- a/driver/ina2xx.c +++ /dev/null @@ -1,167 +0,0 @@ -/* Copyright 2014 The Chromium OS Authors. All rights reserved. - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - * - * TI INA219/231 Current/Power monitor driver. - */ - -#include "console.h" -#include "hooks.h" -#include "i2c.h" -#include "system.h" -#include "timer.h" -#include "ina2xx.h" -#include "util.h" - -/* Console output macros */ -#define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args) - -/* I2C base address */ -#define INA2XX_I2C_ADDR_FLAGS 0x40 - -uint16_t ina2xx_read(uint8_t idx, uint8_t reg) -{ - int res; - int val; - - res = i2c_read16(I2C_PORT_MASTER, INA2XX_I2C_ADDR_FLAGS | idx, - reg, &val); - if (res) { - CPRINTS("INA2XX I2C read failed"); - return 0x0bad; - } - return (val >> 8) | ((val & 0xff) << 8); -} - -int ina2xx_write(uint8_t idx, uint8_t reg, uint16_t val) -{ - int res; - uint16_t be_val = (val >> 8) | ((val & 0xff) << 8); - - res = i2c_write16(I2C_PORT_MASTER, INA2XX_I2C_ADDR_FLAGS | idx, - reg, be_val); - if (res) - CPRINTS("INA2XX I2C write failed"); - return res; -} - -int ina2xx_init(uint8_t idx, uint16_t config, uint16_t calib) -{ - int res; - - res = ina2xx_write(idx, INA2XX_REG_CONFIG, config); - /* TODO(crosbug.com/p/29730): assume 1mA/LSB, revisit later */ - res |= ina2xx_write(idx, INA2XX_REG_CALIB, calib); - - return res; -} - -int ina2xx_get_voltage(uint8_t idx) -{ - uint16_t bv = ina2xx_read(idx, INA2XX_REG_BUS_VOLT); - return INA2XX_BUS_MV((int)bv); -} - -int ina2xx_get_current(uint8_t idx) -{ - int16_t curr = ina2xx_read(idx, INA2XX_REG_CURRENT); - /* Current calibration: LSB = 1mA/bit */ - return (int)curr; -} - -int ina2xx_get_power(uint8_t idx) -{ - uint16_t pow = ina2xx_read(idx, INA2XX_REG_POWER); - return INA2XX_POW_MW((int)pow); -} - -int ina2xx_get_mask(uint8_t idx) -{ - return ina2xx_read(idx, INA2XX_REG_MASK); -} - -int ina2xx_set_mask(uint8_t idx, uint16_t mask) -{ - return ina2xx_write(idx, INA2XX_REG_MASK, mask); -} - -int ina2xx_get_alert(uint8_t idx) -{ - return ina2xx_read(idx, INA2XX_REG_ALERT); -} - -int ina2xx_set_alert(uint8_t idx, uint16_t alert) -{ - return ina2xx_write(idx, INA2XX_REG_ALERT, alert); -} - -#ifdef CONFIG_CMD_INA -static void ina2xx_dump(uint8_t idx) -{ - uint16_t cfg = ina2xx_read(idx, INA2XX_REG_CONFIG); - int16_t sv = ina2xx_read(idx, INA2XX_REG_SHUNT_VOLT); - uint16_t bv = ina2xx_read(idx, INA2XX_REG_BUS_VOLT); - uint16_t pow = ina2xx_read(idx, INA2XX_REG_POWER); - int16_t curr = ina2xx_read(idx, INA2XX_REG_CURRENT); - uint16_t calib = ina2xx_read(idx, INA2XX_REG_CALIB); - uint16_t mask = ina2xx_read(idx, INA2XX_REG_MASK); - uint16_t alert = ina2xx_read(idx, INA2XX_REG_ALERT); - - ccprintf("Configuration: %04x\n", cfg); - ccprintf("Shunt voltage: %04x => %d uV\n", sv, - INA2XX_SHUNT_UV((int)sv)); - ccprintf("Bus voltage : %04x => %d mV\n", bv, - INA2XX_BUS_MV((int)bv)); - ccprintf("Power : %04x => %d mW\n", pow, - INA2XX_POW_MW((int)pow)); - ccprintf("Current : %04x => %d mA\n", curr, curr); - ccprintf("Calibration : %04x\n", calib); - ccprintf("Mask/Enable : %04x\n", mask); - ccprintf("Alert limit : %04x\n", alert); -} - -/*****************************************************************************/ -/* Console commands */ - -static int command_ina(int argc, char **argv) -{ - char *e; - int idx; - uint16_t val; - - if (argc < 2) - return EC_ERROR_PARAM_COUNT; - - idx = strtoi(argv[1], &e, 10); - if (*e) - return EC_ERROR_PARAM1; - - if (2 == argc) { /* dump all registers */ - ina2xx_dump(idx); - return EC_SUCCESS; - } else if (4 == argc) { - val = strtoi(argv[3], &e, 16); - if (*e) - return EC_ERROR_PARAM3; - - if (!strcasecmp(argv[2], "config")) { - ina2xx_write(idx, INA2XX_REG_CONFIG, val); - } else if (!strcasecmp(argv[2], "calib")) { - ina2xx_write(idx, INA2XX_REG_CALIB, val); - } else if (!strcasecmp(argv[2], "mask")) { - ina2xx_write(idx, INA2XX_REG_MASK, val); - } else if (!strcasecmp(argv[2], "alert")) { - ina2xx_write(idx, INA2XX_REG_ALERT, val); - } else { /* read one register */ - ccprintf("Invalid register: %s\n", argv[1]); - return EC_ERROR_INVAL; - } - return EC_SUCCESS; - } - - return EC_ERROR_INVAL; -} -DECLARE_CONSOLE_COMMAND(ina, command_ina, - "<index> [config|calib|mask|alert <val>]", - "INA2XX power/current sensing"); -#endif |