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Date: Wed, 1 Nov 2017 17:03:10 +0000 From: Adam Thomson <Adam.Thomson.Opensource@...semi.com> To: Heikki Krogerus <heikki.krogerus@...ux.intel.com>, Guenter Roeck <linux@...ck-us.net>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Sebastian Reichel <sre@...nel.org>, Hans de Goede <hdegoede@...hat.com>, Yueyao Zhu <yueyao.zhu@...il.com>, Rui Miguel Silva <rmfrfs@...il.com> CC: <linux-usb@...r.kernel.org>, <linux-pm@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <support.opensource@...semi.com> Subject: [RFC PATCH 2/7] 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 <Adam.Thomson.Opensource@...semi.com> --- include/linux/usb/pd_ado.h | 49 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 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 0000000..edcbcfa --- /dev/null +++ b/include/linux/usb/pd_ado.h @@ -0,0 +1,49 @@ +/* + * Copyright (c) 2017 Dialog Semiconductor + * + * Author: Adam Thomson <Adam.Thomson.Opensource@...semi.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __LINUX_USB_PD_ADO_H +#define __LINUX_USB_PD_ADO_H + +/* ADO : Alert Data Object */ +#define ADO_TYPE_SHIFT 24 +#define ADO_TYPE_MASK 0xff +#define ADO_FIXED_BATT_SHIFT 20 +#define ADO_FIXED_BATT_MASK 0xf +#define ADO_HOT_SWAP_BATT_SHIFT 16 +#define ADO_HOT_SWAP_BATT_MASK 0xf + +#define ADO_TYPE_BATT_STATUS_CHANGE BIT(1) +#define ADO_TYPE_OCP BIT(2) +#define ADO_TYPE_OTP BIT(3) +#define ADO_TYPE_OP_COND_CHANGE BIT(4) +#define ADO_TYPE_SRC_INPUT_CHANGE BIT(5) +#define ADO_TYPE_OVP BIT(6) + +static inline unsigned int ado_type(u32 ado) +{ + return (ado >> ADO_TYPE_SHIFT) & ADO_TYPE_MASK; +} + +static inline unsigned int ado_fixed_batt(u32 ado) +{ + return (ado >> ADO_FIXED_BATT_SHIFT) & ADO_FIXED_BATT_MASK; +} + +static inline unsigned int ado_hot_swap_batt(u32 ado) +{ + return (ado >> ADO_HOT_SWAP_BATT_SHIFT) & ADO_HOT_SWAP_BATT_MASK; +} +#endif /* __LINUX_USB_PD_ADO_H */ -- 1.9.1
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