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5ed132db5a
This change adds frs-typec-current which allows setting the initial current capability of the new source when vSafe5V is applied during PD3.0 sink Fast Role Swap. Signed-off-by: Badhri Jagan Sridharan <badhri@google.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20201020093627.256885-2-badhri@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
97 lines
3.7 KiB
C
97 lines
3.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __DT_POWER_DELIVERY_H
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#define __DT_POWER_DELIVERY_H
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/* Power delivery Power Data Object definitions */
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#define PDO_TYPE_FIXED 0
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#define PDO_TYPE_BATT 1
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#define PDO_TYPE_VAR 2
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#define PDO_TYPE_APDO 3
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#define PDO_TYPE_SHIFT 30
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#define PDO_TYPE_MASK 0x3
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#define PDO_TYPE(t) ((t) << PDO_TYPE_SHIFT)
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#define PDO_VOLT_MASK 0x3ff
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#define PDO_CURR_MASK 0x3ff
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#define PDO_PWR_MASK 0x3ff
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#define PDO_FIXED_DUAL_ROLE (1 << 29) /* Power role swap supported */
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#define PDO_FIXED_SUSPEND (1 << 28) /* USB Suspend supported (Source) */
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#define PDO_FIXED_HIGHER_CAP (1 << 28) /* Requires more than vSafe5V (Sink) */
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#define PDO_FIXED_EXTPOWER (1 << 27) /* Externally powered */
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#define PDO_FIXED_USB_COMM (1 << 26) /* USB communications capable */
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#define PDO_FIXED_DATA_SWAP (1 << 25) /* Data role swap supported */
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#define PDO_FIXED_VOLT_SHIFT 10 /* 50mV units */
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#define PDO_FIXED_CURR_SHIFT 0 /* 10mA units */
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#define PDO_FIXED_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_FIXED_VOLT_SHIFT)
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#define PDO_FIXED_CURR(ma) ((((ma) / 10) & PDO_CURR_MASK) << PDO_FIXED_CURR_SHIFT)
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#define PDO_FIXED(mv, ma, flags) \
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(PDO_TYPE(PDO_TYPE_FIXED) | (flags) | \
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PDO_FIXED_VOLT(mv) | PDO_FIXED_CURR(ma))
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#define VSAFE5V 5000 /* mv units */
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#define PDO_BATT_MAX_VOLT_SHIFT 20 /* 50mV units */
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#define PDO_BATT_MIN_VOLT_SHIFT 10 /* 50mV units */
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#define PDO_BATT_MAX_PWR_SHIFT 0 /* 250mW units */
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#define PDO_BATT_MIN_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_BATT_MIN_VOLT_SHIFT)
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#define PDO_BATT_MAX_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_BATT_MAX_VOLT_SHIFT)
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#define PDO_BATT_MAX_POWER(mw) ((((mw) / 250) & PDO_PWR_MASK) << PDO_BATT_MAX_PWR_SHIFT)
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#define PDO_BATT(min_mv, max_mv, max_mw) \
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(PDO_TYPE(PDO_TYPE_BATT) | PDO_BATT_MIN_VOLT(min_mv) | \
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PDO_BATT_MAX_VOLT(max_mv) | PDO_BATT_MAX_POWER(max_mw))
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#define PDO_VAR_MAX_VOLT_SHIFT 20 /* 50mV units */
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#define PDO_VAR_MIN_VOLT_SHIFT 10 /* 50mV units */
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#define PDO_VAR_MAX_CURR_SHIFT 0 /* 10mA units */
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#define PDO_VAR_MIN_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_VAR_MIN_VOLT_SHIFT)
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#define PDO_VAR_MAX_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_VAR_MAX_VOLT_SHIFT)
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#define PDO_VAR_MAX_CURR(ma) ((((ma) / 10) & PDO_CURR_MASK) << PDO_VAR_MAX_CURR_SHIFT)
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#define PDO_VAR(min_mv, max_mv, max_ma) \
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(PDO_TYPE(PDO_TYPE_VAR) | PDO_VAR_MIN_VOLT(min_mv) | \
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PDO_VAR_MAX_VOLT(max_mv) | PDO_VAR_MAX_CURR(max_ma))
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#define APDO_TYPE_PPS 0
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#define PDO_APDO_TYPE_SHIFT 28 /* Only valid value currently is 0x0 - PPS */
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#define PDO_APDO_TYPE_MASK 0x3
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#define PDO_APDO_TYPE(t) ((t) << PDO_APDO_TYPE_SHIFT)
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#define PDO_PPS_APDO_MAX_VOLT_SHIFT 17 /* 100mV units */
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#define PDO_PPS_APDO_MIN_VOLT_SHIFT 8 /* 100mV units */
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#define PDO_PPS_APDO_MAX_CURR_SHIFT 0 /* 50mA units */
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#define PDO_PPS_APDO_VOLT_MASK 0xff
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#define PDO_PPS_APDO_CURR_MASK 0x7f
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#define PDO_PPS_APDO_MIN_VOLT(mv) \
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((((mv) / 100) & PDO_PPS_APDO_VOLT_MASK) << PDO_PPS_APDO_MIN_VOLT_SHIFT)
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#define PDO_PPS_APDO_MAX_VOLT(mv) \
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((((mv) / 100) & PDO_PPS_APDO_VOLT_MASK) << PDO_PPS_APDO_MAX_VOLT_SHIFT)
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#define PDO_PPS_APDO_MAX_CURR(ma) \
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((((ma) / 50) & PDO_PPS_APDO_CURR_MASK) << PDO_PPS_APDO_MAX_CURR_SHIFT)
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#define PDO_PPS_APDO(min_mv, max_mv, max_ma) \
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(PDO_TYPE(PDO_TYPE_APDO) | PDO_APDO_TYPE(APDO_TYPE_PPS) | \
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PDO_PPS_APDO_MIN_VOLT(min_mv) | PDO_PPS_APDO_MAX_VOLT(max_mv) | \
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PDO_PPS_APDO_MAX_CURR(max_ma))
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/*
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* Based on "Table 6-14 Fixed Supply PDO - Sink" of "USB Power Delivery Specification Revision 3.0,
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* Version 1.2"
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* Initial current capability of the new source when vSafe5V is applied.
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*/
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#define FRS_DEFAULT_POWER 1
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#define FRS_5V_1P5A 2
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#define FRS_5V_3A 3
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#endif /* __DT_POWER_DELIVERY_H */
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