diff options
| -rw-r--r-- | board/glados/battery.c | 27 | ||||
| -rw-r--r-- | board/glados/board.h | 3 |
2 files changed, 29 insertions, 1 deletions
diff --git a/board/glados/battery.c b/board/glados/battery.c index 2311120145..3365c93be1 100644 --- a/board/glados/battery.c +++ b/board/glados/battery.c @@ -6,6 +6,13 @@ */ #include "battery.h" +#include "battery_smart.h" +#include "i2c.h" +#include "util.h" + +/* Shutdown mode parameter to write to manufacturer access register */ +#define PARAM_CUT_OFF_LOW 0x10 +#define PARAM_CUT_OFF_HIGH 0x00 /* Battery info for BQ40Z55 */ static const struct battery_info info = { @@ -25,3 +32,23 @@ const struct battery_info *battery_get_info(void) { return &info; } + +int board_cut_off_battery(void) +{ + int rv; + uint8_t buf[3]; + + /* Ship mode command must be sent twice to take effect */ + buf[0] = SB_MANUFACTURER_ACCESS & 0xff; + buf[1] = PARAM_CUT_OFF_LOW; + buf[2] = PARAM_CUT_OFF_HIGH; + + i2c_lock(I2C_PORT_BATTERY, 1); + rv = i2c_xfer(I2C_PORT_BATTERY, BATTERY_ADDR, buf, 3, NULL, 0, + I2C_XFER_SINGLE); + rv |= i2c_xfer(I2C_PORT_BATTERY, BATTERY_ADDR, buf, 3, NULL, 0, + I2C_XFER_SINGLE); + i2c_lock(I2C_PORT_BATTERY, 0); + + return rv; +} diff --git a/board/glados/board.h b/board/glados/board.h index da54b2a861..923289388b 100644 --- a/board/glados/board.h +++ b/board/glados/board.h @@ -10,6 +10,7 @@ /* Optional features */ #define CONFIG_ADC +#define CONFIG_BATTERY_CUT_OFF #define CONFIG_BATTERY_PRESENT_GPIO GPIO_BAT_PRESENT_L #define CONFIG_BATTERY_SMART #define CONFIG_BUTTON_COUNT 2 @@ -67,7 +68,7 @@ #define I2C_PORT_PMIC MEC1322_I2C3 #undef DEFERRABLE_MAX_COUNT -#define DEFERRABLE_MAX_COUNT 9 +#define DEFERRABLE_MAX_COUNT 10 #ifndef __ASSEMBLER__ |