diff options
Diffstat (limited to 'board/host/usb_pd_config.h')
| -rw-r--r-- | board/host/usb_pd_config.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/board/host/usb_pd_config.h b/board/host/usb_pd_config.h new file mode 100644 index 0000000000..6770b8e11d --- /dev/null +++ b/board/host/usb_pd_config.h @@ -0,0 +1,41 @@ +/* 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. + */ + +/* USB Power delivery board configuration */ + +#ifndef __USB_PD_CONFIG_H +#define __USB_PD_CONFIG_H + +/* Port and task configuration */ +#define PD_PORT_COUNT 2 +#define PORT_TO_TASK_ID(port) ((port) ? TASK_ID_PD_C1 : TASK_ID_PD_C0) +#define TASK_ID_TO_PORT(id) ((id) == TASK_ID_PD_C0 ? 0 : 1) + +/* Use software CRC */ +#define CONFIG_SW_CRC + +void pd_select_polarity(int port, int polarity); + +void pd_tx_init(void); + +void pd_set_host_mode(int port, int enable); + +int pd_adc_read(int port, int cc); + +int pd_snk_is_vbus_provided(int port); + +/* Standard-current DFP : no-connect voltage is 1.55V */ +#define PD_SRC_VNC 1550 /* mV */ + +/* UFP-side : threshold for DFP connection detection */ +#define PD_SNK_VA 200 /* mV */ + +/* start as a sink in case we have no other power supply/battery */ +#define PD_DEFAULT_STATE PD_STATE_SNK_DISCONNECTED + +/* delay necessary for the voltage transition on the power supply */ +#define PD_POWER_SUPPLY_TRANSITION_DELAY 50000 /* us */ + +#endif /* __USB_PD_CONFIG_H */ |