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samus: add battery cutoff

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Add battery cutoff to samus.

BUG=chrome-os-partner:35744
BRANCH=samus
TEST=tested "cutoff" console command cuts off battery
and "ectool batterycutoff" from host cuts off battery

Change-Id: I88194c9c601594dee144933cabef5b1dc536ab0d
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/242830
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
This commit is contained in:
Alec Berg
2015-01-23 09:06:36 -08:00
committed by ChromeOS Commit Bot
parent 0cefc2eeb5
commit 0ef55f5899
2 changed files with 25 additions and 0 deletions
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1
board/samus/board.h
View File

@@ -24,6 +24,7 @@
#define CONFIG_CMD_ACCEL_INFO
#undef CONFIG_BATTERY_CRITICAL_SHUTDOWN_TIMEOUT
#define CONFIG_BATTERY_CRITICAL_SHUTDOWN_TIMEOUT 60
#define CONFIG_BATTERY_CUT_OFF
#define CONFIG_POWER_COMMON
#define CONFIG_CHIPSET_CAN_THROTTLE
#define CONFIG_KEYBOARD_BOARD_CONFIG

24
driver/battery/samus.c
View File

@@ -10,6 +10,7 @@
#include "console.h"
#include "ec_commands.h"
#include "extpower.h"
#include "i2c.h"
#include "util.h"
static const struct battery_info info = {
@@ -220,3 +221,26 @@ enum battery_disconnect_state battery_get_disconnect_state(void)
return BATTERY_NOT_DISCONNECTED;
}
#endif /* CONFIG_BATTERY_REVIVE_DISCONNECT */
#define PARAM_CUT_OFF_LOW 0x10
#define PARAM_CUT_OFF_HIGH 0x00
int board_cut_off_battery(void)
{
int rv;
uint8_t buf[3];
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;
}