diff options
Diffstat (limited to 'drivers/staging/typec/pd.h')
| -rw-r--r-- | drivers/staging/typec/pd.h | 293 |
1 files changed, 0 insertions, 293 deletions
diff --git a/drivers/staging/typec/pd.h b/drivers/staging/typec/pd.h deleted file mode 100644 index 30b32ad72acd..000000000000 --- a/drivers/staging/typec/pd.h +++ /dev/null @@ -1,293 +0,0 @@ -/* - * Copyright 2015-2017 Google, Inc - * - * 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_H -#define __LINUX_USB_PD_H - -#include <linux/types.h> -#include <linux/usb/typec.h> - -/* USB PD Messages */ -enum pd_ctrl_msg_type { - /* 0 Reserved */ - PD_CTRL_GOOD_CRC = 1, - PD_CTRL_GOTO_MIN = 2, - PD_CTRL_ACCEPT = 3, - PD_CTRL_REJECT = 4, - PD_CTRL_PING = 5, - PD_CTRL_PS_RDY = 6, - PD_CTRL_GET_SOURCE_CAP = 7, - PD_CTRL_GET_SINK_CAP = 8, - PD_CTRL_DR_SWAP = 9, - PD_CTRL_PR_SWAP = 10, - PD_CTRL_VCONN_SWAP = 11, - PD_CTRL_WAIT = 12, - PD_CTRL_SOFT_RESET = 13, - /* 14-15 Reserved */ -}; - -enum pd_data_msg_type { - /* 0 Reserved */ - PD_DATA_SOURCE_CAP = 1, - PD_DATA_REQUEST = 2, - PD_DATA_BIST = 3, - PD_DATA_SINK_CAP = 4, - /* 5-14 Reserved */ - PD_DATA_VENDOR_DEF = 15, -}; - -#define PD_REV10 0x0 -#define PD_REV20 0x1 - -#define PD_HEADER_CNT_SHIFT 12 -#define PD_HEADER_CNT_MASK 0x7 -#define PD_HEADER_ID_SHIFT 9 -#define PD_HEADER_ID_MASK 0x7 -#define PD_HEADER_PWR_ROLE BIT(8) -#define PD_HEADER_REV_SHIFT 6 -#define PD_HEADER_REV_MASK 0x3 -#define PD_HEADER_DATA_ROLE BIT(5) -#define PD_HEADER_TYPE_SHIFT 0 -#define PD_HEADER_TYPE_MASK 0xf - -#define PD_HEADER(type, pwr, data, id, cnt) \ - ((((type) & PD_HEADER_TYPE_MASK) << PD_HEADER_TYPE_SHIFT) | \ - ((pwr) == TYPEC_SOURCE ? PD_HEADER_PWR_ROLE : 0) | \ - ((data) == TYPEC_HOST ? PD_HEADER_DATA_ROLE : 0) | \ - (PD_REV20 << PD_HEADER_REV_SHIFT) | \ - (((id) & PD_HEADER_ID_MASK) << PD_HEADER_ID_SHIFT) | \ - (((cnt) & PD_HEADER_CNT_MASK) << PD_HEADER_CNT_SHIFT)) - -#define PD_HEADER_LE(type, pwr, data, id, cnt) \ - cpu_to_le16(PD_HEADER((type), (pwr), (data), (id), (cnt))) - -static inline unsigned int pd_header_cnt(u16 header) -{ - return (header >> PD_HEADER_CNT_SHIFT) & PD_HEADER_CNT_MASK; -} - -static inline unsigned int pd_header_cnt_le(__le16 header) -{ - return pd_header_cnt(le16_to_cpu(header)); -} - -static inline unsigned int pd_header_type(u16 header) -{ - return (header >> PD_HEADER_TYPE_SHIFT) & PD_HEADER_TYPE_MASK; -} - -static inline unsigned int pd_header_type_le(__le16 header) -{ - return pd_header_type(le16_to_cpu(header)); -} - -static inline unsigned int pd_header_msgid(u16 header) -{ - return (header >> PD_HEADER_ID_SHIFT) & PD_HEADER_ID_MASK; -} - -static inline unsigned int pd_header_msgid_le(__le16 header) -{ - return pd_header_msgid(le16_to_cpu(header)); -} - -#define PD_MAX_PAYLOAD 7 - -struct pd_message { - __le16 header; - __le32 payload[PD_MAX_PAYLOAD]; -} __packed; - -/* PDO: Power Data Object */ -#define PDO_MAX_OBJECTS 7 - -enum pd_pdo_type { - PDO_TYPE_FIXED = 0, - PDO_TYPE_BATT = 1, - PDO_TYPE_VAR = 2, -}; - -#define PDO_TYPE_SHIFT 30 -#define PDO_TYPE_MASK 0x3 - -#define PDO_TYPE(t) ((t) << PDO_TYPE_SHIFT) - -#define PDO_VOLT_MASK 0x3ff -#define PDO_CURR_MASK 0x3ff -#define PDO_PWR_MASK 0x3ff - -#define PDO_FIXED_DUAL_ROLE BIT(29) /* Power role swap supported */ -#define PDO_FIXED_SUSPEND BIT(28) /* USB Suspend supported (Source) */ -#define PDO_FIXED_HIGHER_CAP BIT(28) /* Requires more than vSafe5V (Sink) */ -#define PDO_FIXED_EXTPOWER BIT(27) /* Externally powered */ -#define PDO_FIXED_USB_COMM BIT(26) /* USB communications capable */ -#define PDO_FIXED_DATA_SWAP BIT(25) /* Data role swap supported */ -#define PDO_FIXED_VOLT_SHIFT 10 /* 50mV units */ -#define PDO_FIXED_CURR_SHIFT 0 /* 10mA units */ - -#define PDO_FIXED_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_FIXED_VOLT_SHIFT) -#define PDO_FIXED_CURR(ma) ((((ma) / 10) & PDO_CURR_MASK) << PDO_FIXED_CURR_SHIFT) - -#define PDO_FIXED(mv, ma, flags) \ - (PDO_TYPE(PDO_TYPE_FIXED) | (flags) | \ - PDO_FIXED_VOLT(mv) | PDO_FIXED_CURR(ma)) - -#define PDO_BATT_MAX_VOLT_SHIFT 20 /* 50mV units */ -#define PDO_BATT_MIN_VOLT_SHIFT 10 /* 50mV units */ -#define PDO_BATT_MAX_PWR_SHIFT 0 /* 250mW units */ - -#define PDO_BATT_MIN_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_BATT_MIN_VOLT_SHIFT) -#define PDO_BATT_MAX_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_BATT_MAX_VOLT_SHIFT) -#define PDO_BATT_MAX_POWER(mw) ((((mw) / 250) & PDO_PWR_MASK) << PDO_BATT_MAX_PWR_SHIFT) - -#define PDO_BATT(min_mv, max_mv, max_mw) \ - (PDO_TYPE(PDO_TYPE_BATT) | PDO_BATT_MIN_VOLT(min_mv) | \ - PDO_BATT_MAX_VOLT(max_mv) | PDO_BATT_MAX_POWER(max_mw)) - -#define PDO_VAR_MAX_VOLT_SHIFT 20 /* 50mV units */ -#define PDO_VAR_MIN_VOLT_SHIFT 10 /* 50mV units */ -#define PDO_VAR_MAX_CURR_SHIFT 0 /* 10mA units */ - -#define PDO_VAR_MIN_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_VAR_MIN_VOLT_SHIFT) -#define PDO_VAR_MAX_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_VAR_MAX_VOLT_SHIFT) -#define PDO_VAR_MAX_CURR(ma) ((((ma) / 10) & PDO_CURR_MASK) << PDO_VAR_MAX_CURR_SHIFT) - -#define PDO_VAR(min_mv, max_mv, max_ma) \ - (PDO_TYPE(PDO_TYPE_VAR) | PDO_VAR_MIN_VOLT(min_mv) | \ - PDO_VAR_MAX_VOLT(max_mv) | PDO_VAR_MAX_CURR(max_ma)) - -static inline enum pd_pdo_type pdo_type(u32 pdo) -{ - return (pdo >> PDO_TYPE_SHIFT) & PDO_TYPE_MASK; -} - -static inline unsigned int pdo_fixed_voltage(u32 pdo) -{ - return ((pdo >> PDO_FIXED_VOLT_SHIFT) & PDO_VOLT_MASK) * 50; -} - -static inline unsigned int pdo_min_voltage(u32 pdo) -{ - return ((pdo >> PDO_VAR_MIN_VOLT_SHIFT) & PDO_VOLT_MASK) * 50; -} - -static inline unsigned int pdo_max_voltage(u32 pdo) -{ - return ((pdo >> PDO_VAR_MAX_VOLT_SHIFT) & PDO_VOLT_MASK) * 50; -} - -static inline unsigned int pdo_max_current(u32 pdo) -{ - return ((pdo >> PDO_VAR_MAX_CURR_SHIFT) & PDO_CURR_MASK) * 10; -} - -static inline unsigned int pdo_max_power(u32 pdo) -{ - return ((pdo >> PDO_BATT_MAX_PWR_SHIFT) & PDO_PWR_MASK) * 250; -} - -/* RDO: Request Data Object */ -#define RDO_OBJ_POS_SHIFT 28 -#define RDO_OBJ_POS_MASK 0x7 -#define RDO_GIVE_BACK BIT(27) /* Supports reduced operating current */ -#define RDO_CAP_MISMATCH BIT(26) /* Not satisfied by source caps */ -#define RDO_USB_COMM BIT(25) /* USB communications capable */ -#define RDO_NO_SUSPEND BIT(24) /* USB Suspend not supported */ - -#define RDO_PWR_MASK 0x3ff -#define RDO_CURR_MASK 0x3ff - -#define RDO_FIXED_OP_CURR_SHIFT 10 -#define RDO_FIXED_MAX_CURR_SHIFT 0 - -#define RDO_OBJ(idx) (((idx) & RDO_OBJ_POS_MASK) << RDO_OBJ_POS_SHIFT) - -#define PDO_FIXED_OP_CURR(ma) ((((ma) / 10) & RDO_CURR_MASK) << RDO_FIXED_OP_CURR_SHIFT) -#define PDO_FIXED_MAX_CURR(ma) ((((ma) / 10) & RDO_CURR_MASK) << RDO_FIXED_MAX_CURR_SHIFT) - -#define RDO_FIXED(idx, op_ma, max_ma, flags) \ - (RDO_OBJ(idx) | (flags) | \ - PDO_FIXED_OP_CURR(op_ma) | PDO_FIXED_MAX_CURR(max_ma)) - -#define RDO_BATT_OP_PWR_SHIFT 10 /* 250mW units */ -#define RDO_BATT_MAX_PWR_SHIFT 0 /* 250mW units */ - -#define RDO_BATT_OP_PWR(mw) ((((mw) / 250) & RDO_PWR_MASK) << RDO_BATT_OP_PWR_SHIFT) -#define RDO_BATT_MAX_PWR(mw) ((((mw) / 250) & RDO_PWR_MASK) << RDO_BATT_MAX_PWR_SHIFT) - -#define RDO_BATT(idx, op_mw, max_mw, flags) \ - (RDO_OBJ(idx) | (flags) | \ - RDO_BATT_OP_PWR(op_mw) | RDO_BATT_MAX_PWR(max_mw)) - -static inline unsigned int rdo_index(u32 rdo) -{ - return (rdo >> RDO_OBJ_POS_SHIFT) & RDO_OBJ_POS_MASK; -} - -static inline unsigned int rdo_op_current(u32 rdo) -{ - return ((rdo >> RDO_FIXED_OP_CURR_SHIFT) & RDO_CURR_MASK) * 10; -} - -static inline unsigned int rdo_max_current(u32 rdo) -{ - return ((rdo >> RDO_FIXED_MAX_CURR_SHIFT) & - RDO_CURR_MASK) * 10; -} - -static inline unsigned int rdo_op_power(u32 rdo) -{ - return ((rdo >> RDO_BATT_OP_PWR_SHIFT) & RDO_PWR_MASK) * 250; -} - -static inline unsigned int rdo_max_power(u32 rdo) -{ - return ((rdo >> RDO_BATT_MAX_PWR_SHIFT) & RDO_PWR_MASK) * 250; -} - -/* USB PD timers and counters */ -#define PD_T_NO_RESPONSE 5000 /* 4.5 - 5.5 seconds */ -#define PD_T_DB_DETECT 10000 /* 10 - 15 seconds */ -#define PD_T_SEND_SOURCE_CAP 150 /* 100 - 200 ms */ -#define PD_T_SENDER_RESPONSE 60 /* 24 - 30 ms, relaxed */ -#define PD_T_SOURCE_ACTIVITY 45 -#define PD_T_SINK_ACTIVITY 135 -#define PD_T_SINK_WAIT_CAP 240 -#define PD_T_PS_TRANSITION 500 -#define PD_T_SRC_TRANSITION 35 -#define PD_T_DRP_SNK 40 -#define PD_T_DRP_SRC 30 -#define PD_T_PS_SOURCE_OFF 920 -#define PD_T_PS_SOURCE_ON 480 -#define PD_T_PS_HARD_RESET 30 -#define PD_T_SRC_RECOVER 760 -#define PD_T_SRC_RECOVER_MAX 1000 -#define PD_T_SRC_TURN_ON 275 -#define PD_T_SAFE_0V 650 -#define PD_T_VCONN_SOURCE_ON 100 -#define PD_T_SINK_REQUEST 100 /* 100 ms minimum */ -#define PD_T_ERROR_RECOVERY 100 /* minimum 25 is insufficient */ -#define PD_T_SRCSWAPSTDBY 625 /* Maximum of 650ms */ -#define PD_T_NEWSRC 250 /* Maximum of 275ms */ - -#define PD_T_DRP_TRY 100 /* 75 - 150 ms */ -#define PD_T_DRP_TRYWAIT 600 /* 400 - 800 ms */ - -#define PD_T_CC_DEBOUNCE 200 /* 100 - 200 ms */ -#define PD_T_PD_DEBOUNCE 20 /* 10 - 20 ms */ - -#define PD_N_CAPS_COUNT (PD_T_NO_RESPONSE / PD_T_SEND_SOURCE_CAP) -#define PD_N_HARD_RESET_COUNT 2 - -#endif /* __LINUX_USB_PD_H */ |