diff options
Diffstat (limited to 'common/host_command_pd.c')
| -rw-r--r-- | common/host_command_pd.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/common/host_command_pd.c b/common/host_command_pd.c new file mode 100644 index 0000000000..5d9a3adf6d --- /dev/null +++ b/common/host_command_pd.c @@ -0,0 +1,52 @@ +/* Copyright (c) 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. + */ + +/* Host command module for PD MCU */ + +#include "charge_state.h" +#include "common.h" +#include "host_command.h" +#include "task.h" +#include "timer.h" +#include "util.h" + +#define TASK_EVENT_EXCHANGE_PD_STATUS TASK_EVENT_CUSTOM(1) + +void host_command_pd_send_status(void) +{ + task_set_event(TASK_ID_PDCMD, TASK_EVENT_EXCHANGE_PD_STATUS, 0); +} + +static void pd_exchange_status(void) +{ + struct ec_params_pd_status ec_status; + + /* + * TODO(crosbug.com/p/29499): Change sending state of charge to + * remaining capacity for finer grained control. + */ + /* Send battery state of charge */ + if (charge_get_flags() & CHARGE_FLAG_BATT_RESPONSIVE) + ec_status.batt_soc = charge_get_percent(); + else + ec_status.batt_soc = -1; + + pd_host_command(EC_CMD_PD_EXCHANGE_STATUS, 0, &ec_status, + sizeof(struct ec_params_pd_status), NULL, 0); +} + +void pd_command_task(void) +{ + + while (1) { + /* Wait for the next command event */ + int evt = task_wait_event(-1); + + /* Process event to send status to PD */ + if (evt & TASK_EVENT_EXCHANGE_PD_STATUS) + pd_exchange_status(); + } +} + |