From 456ebb4f221e98f507cc945690a670a79682c029 Mon Sep 17 00:00:00 2001 From: Adam Thomson Date: Tue, 2 Jan 2018 15:50:50 +0000 Subject: [PATCH] typec: tcpm: Add ADO header for Alert message handling This commit adds a header providing definitions for handling Alert messages. Currently the header only focuses on handling incoming alerts. Signed-off-by: Adam Thomson Acked-by: Heikki Krogerus Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/pd_ado.h | 42 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 include/linux/usb/pd_ado.h diff --git a/include/linux/usb/pd_ado.h b/include/linux/usb/pd_ado.h new file mode 100644 index 000000000000..9aa1cf31c93c --- /dev/null +++ b/include/linux/usb/pd_ado.h @@ -0,0 +1,42 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2017 Dialog Semiconductor + * + * Author: Adam Thomson + */ + +#ifndef __LINUX_USB_PD_ADO_H +#define __LINUX_USB_PD_ADO_H + +/* ADO : Alert Data Object */ +#define USB_PD_ADO_TYPE_SHIFT 24 +#define USB_PD_ADO_TYPE_MASK 0xff +#define USB_PD_ADO_FIXED_BATT_SHIFT 20 +#define USB_PD_ADO_FIXED_BATT_MASK 0xf +#define USB_PD_ADO_HOT_SWAP_BATT_SHIFT 16 +#define USB_PD_ADO_HOT_SWAP_BATT_MASK 0xf + +#define USB_PD_ADO_TYPE_BATT_STATUS_CHANGE BIT(1) +#define USB_PD_ADO_TYPE_OCP BIT(2) +#define USB_PD_ADO_TYPE_OTP BIT(3) +#define USB_PD_ADO_TYPE_OP_COND_CHANGE BIT(4) +#define USB_PD_ADO_TYPE_SRC_INPUT_CHANGE BIT(5) +#define USB_PD_ADO_TYPE_OVP BIT(6) + +static inline unsigned int usb_pd_ado_type(u32 ado) +{ + return (ado >> USB_PD_ADO_TYPE_SHIFT) & USB_PD_ADO_TYPE_MASK; +} + +static inline unsigned int usb_pd_ado_fixed_batt(u32 ado) +{ + return (ado >> USB_PD_ADO_FIXED_BATT_SHIFT) & + USB_PD_ADO_FIXED_BATT_MASK; +} + +static inline unsigned int usb_pd_ado_hot_swap_batt(u32 ado) +{ + return (ado >> USB_PD_ADO_HOT_SWAP_BATT_SHIFT) & + USB_PD_ADO_HOT_SWAP_BATT_MASK; +} +#endif /* __LINUX_USB_PD_ADO_H */