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staging: typec: Fairchild FUSB302 Type-c chip driver

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Fairchild FUSB302 Type-C chip driver that works with
Type-C Port Controller Manager to provide USB PD and
USB Type-C functionalities.

Signed-off-by: Yueyao Zhu <yueyao.zhu@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Yueyao Zhu 2017-04-27 14:09:58 -07:00 committed by Greg Kroah-Hartman
parent 74e656d6b0
commit c034a43e72
7 changed files with 2018 additions and 0 deletions
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2
drivers/staging/typec/Kconfig
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@ -17,6 +17,8 @@ config TYPEC_TCPCI
help
Type-C Port Controller driver for TCPCI-compliant controller.
source "drivers/staging/typec/fusb302/Kconfig"
endif
endmenu

1
drivers/staging/typec/Makefile
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@ -1,2 +1,3 @@
obj-$(CONFIG_TYPEC_TCPM) += tcpm.o
obj-$(CONFIG_TYPEC_TCPCI) += tcpci.o
obj-y += fusb302/

7
drivers/staging/typec/fusb302/Kconfig Normal file
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@ -0,0 +1,7 @@
config TYPEC_FUSB302
tristate "Fairchild FUSB302 Type-C chip driver"
depends on I2C
help
The Fairchild FUSB302 Type-C chip driver that works with
Type-C Port Controller Manager to provide USB PD and USB
Type-C functionalities.

1
drivers/staging/typec/fusb302/Makefile Normal file
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@ -0,0 +1 @@
obj-$(CONFIG_TYPEC_FUSB302) += fusb302.o

6
drivers/staging/typec/fusb302/TODO Normal file
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@ -0,0 +1,6 @@
fusb302:
- Find a better logging scheme, at least not having the same debugging/logging
code replicated here and in tcpm
- Find a non-hacky way to coordinate between PM and I2C access
- Documentation? The FUSB302 datasheet provides information on the chip to help
understand the code. But it may still be helpful to have a documentation.

1815
drivers/staging/typec/fusb302/fusb302.c Normal file
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File diff suppressed because it is too large Load Diff

186
drivers/staging/typec/fusb302/fusb302_reg.h Normal file
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@ -0,0 +1,186 @@
/*
* Copyright 2016-2017 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.
*
* Fairchild FUSB302 Type-C Chip Driver
*/
#ifndef FUSB302_REG_H
#define FUSB302_REG_H
#define FUSB_REG_DEVICE_ID 0x01
#define FUSB_REG_SWITCHES0 0x02
#define FUSB_REG_SWITCHES0_CC2_PU_EN BIT(7)
#define FUSB_REG_SWITCHES0_CC1_PU_EN BIT(6)
#define FUSB_REG_SWITCHES0_VCONN_CC2 BIT(5)
#define FUSB_REG_SWITCHES0_VCONN_CC1 BIT(4)
#define FUSB_REG_SWITCHES0_MEAS_CC2 BIT(3)
#define FUSB_REG_SWITCHES0_MEAS_CC1 BIT(2)
#define FUSB_REG_SWITCHES0_CC2_PD_EN BIT(1)
#define FUSB_REG_SWITCHES0_CC1_PD_EN BIT(0)
#define FUSB_REG_SWITCHES1 0x03
#define FUSB_REG_SWITCHES1_POWERROLE BIT(7)
#define FUSB_REG_SWITCHES1_SPECREV1 BIT(6)
#define FUSB_REG_SWITCHES1_SPECREV0 BIT(5)
#define FUSB_REG_SWITCHES1_DATAROLE BIT(4)
#define FUSB_REG_SWITCHES1_AUTO_GCRC BIT(2)
#define FUSB_REG_SWITCHES1_TXCC2_EN BIT(1)
#define FUSB_REG_SWITCHES1_TXCC1_EN BIT(0)
#define FUSB_REG_MEASURE 0x04
#define FUSB_REG_MEASURE_MDAC5 BIT(7)
#define FUSB_REG_MEASURE_MDAC4 BIT(6)
#define FUSB_REG_MEASURE_MDAC3 BIT(5)
#define FUSB_REG_MEASURE_MDAC2 BIT(4)
#define FUSB_REG_MEASURE_MDAC1 BIT(3)
#define FUSB_REG_MEASURE_MDAC0 BIT(2)
#define FUSB_REG_MEASURE_VBUS BIT(1)
#define FUSB_REG_MEASURE_XXXX5 BIT(0)
#define FUSB_REG_CONTROL0 0x06
#define FUSB_REG_CONTROL0_TX_FLUSH BIT(6)
#define FUSB_REG_CONTROL0_INT_MASK BIT(5)
#define FUSB_REG_CONTROL0_HOST_CUR_MASK (0xC)
#define FUSB_REG_CONTROL0_HOST_CUR_HIGH (0xC)
#define FUSB_REG_CONTROL0_HOST_CUR_MED (0x8)
#define FUSB_REG_CONTROL0_HOST_CUR_DEF (0x4)
#define FUSB_REG_CONTROL0_TX_START BIT(0)
#define FUSB_REG_CONTROL1 0x07
#define FUSB_REG_CONTROL1_ENSOP2DB BIT(6)
#define FUSB_REG_CONTROL1_ENSOP1DB BIT(5)
#define FUSB_REG_CONTROL1_BIST_MODE2 BIT(4)
#define FUSB_REG_CONTROL1_RX_FLUSH BIT(2)
#define FUSB_REG_CONTROL1_ENSOP2 BIT(1)
#define FUSB_REG_CONTROL1_ENSOP1 BIT(0)
#define FUSB_REG_CONTROL2 0x08
#define FUSB_REG_CONTROL2_MODE BIT(1)
#define FUSB_REG_CONTROL2_MODE_MASK (0x6)
#define FUSB_REG_CONTROL2_MODE_DFP (0x6)
#define FUSB_REG_CONTROL2_MODE_UFP (0x4)
#define FUSB_REG_CONTROL2_MODE_DRP (0x2)
#define FUSB_REG_CONTROL2_MODE_NONE (0x0)
#define FUSB_REG_CONTROL2_TOGGLE BIT(0)
#define FUSB_REG_CONTROL3 0x09
#define FUSB_REG_CONTROL3_SEND_HARDRESET BIT(6)
#define FUSB_REG_CONTROL3_BIST_TMODE BIT(5) /* 302B Only */
#define FUSB_REG_CONTROL3_AUTO_HARDRESET BIT(4)
#define FUSB_REG_CONTROL3_AUTO_SOFTRESET BIT(3)
#define FUSB_REG_CONTROL3_N_RETRIES BIT(1)
#define FUSB_REG_CONTROL3_N_RETRIES_MASK (0x6)
#define FUSB_REG_CONTROL3_N_RETRIES_3 (0x6)
#define FUSB_REG_CONTROL3_N_RETRIES_2 (0x4)
#define FUSB_REG_CONTROL3_N_RETRIES_1 (0x2)
#define FUSB_REG_CONTROL3_AUTO_RETRY BIT(0)
#define FUSB_REG_MASK 0x0A
#define FUSB_REG_MASK_VBUSOK BIT(7)
#define FUSB_REG_MASK_ACTIVITY BIT(6)
#define FUSB_REG_MASK_COMP_CHNG BIT(5)
#define FUSB_REG_MASK_CRC_CHK BIT(4)
#define FUSB_REG_MASK_ALERT BIT(3)
#define FUSB_REG_MASK_WAKE BIT(2)
#define FUSB_REG_MASK_COLLISION BIT(1)
#define FUSB_REG_MASK_BC_LVL BIT(0)
#define FUSB_REG_POWER 0x0B
#define FUSB_REG_POWER_PWR BIT(0)
#define FUSB_REG_POWER_PWR_LOW 0x1
#define FUSB_REG_POWER_PWR_MEDIUM 0x3
#define FUSB_REG_POWER_PWR_HIGH 0x7
#define FUSB_REG_POWER_PWR_ALL 0xF
#define FUSB_REG_RESET 0x0C
#define FUSB_REG_RESET_PD_RESET BIT(1)
#define FUSB_REG_RESET_SW_RESET BIT(0)
#define FUSB_REG_MASKA 0x0E
#define FUSB_REG_MASKA_OCP_TEMP BIT(7)
#define FUSB_REG_MASKA_TOGDONE BIT(6)
#define FUSB_REG_MASKA_SOFTFAIL BIT(5)
#define FUSB_REG_MASKA_RETRYFAIL BIT(4)
#define FUSB_REG_MASKA_HARDSENT BIT(3)
#define FUSB_REG_MASKA_TX_SUCCESS BIT(2)
#define FUSB_REG_MASKA_SOFTRESET BIT(1)
#define FUSB_REG_MASKA_HARDRESET BIT(0)
#define FUSB_REG_MASKB 0x0F
#define FUSB_REG_MASKB_GCRCSENT BIT(0)
#define FUSB_REG_STATUS0A 0x3C
#define FUSB_REG_STATUS0A_SOFTFAIL BIT(5)
#define FUSB_REG_STATUS0A_RETRYFAIL BIT(4)
#define FUSB_REG_STATUS0A_POWER BIT(2)
#define FUSB_REG_STATUS0A_RX_SOFT_RESET BIT(1)
#define FUSB_REG_STATUS0A_RX_HARD_RESET BIT(0)
#define FUSB_REG_STATUS1A 0x3D
#define FUSB_REG_STATUS1A_TOGSS BIT(3)
#define FUSB_REG_STATUS1A_TOGSS_RUNNING 0x0
#define FUSB_REG_STATUS1A_TOGSS_SRC1 0x1
#define FUSB_REG_STATUS1A_TOGSS_SRC2 0x2
#define FUSB_REG_STATUS1A_TOGSS_SNK1 0x5
#define FUSB_REG_STATUS1A_TOGSS_SNK2 0x6
#define FUSB_REG_STATUS1A_TOGSS_AA 0x7
#define FUSB_REG_STATUS1A_TOGSS_POS (3)
#define FUSB_REG_STATUS1A_TOGSS_MASK (0x7)
#define FUSB_REG_STATUS1A_RXSOP2DB BIT(2)
#define FUSB_REG_STATUS1A_RXSOP1DB BIT(1)
#define FUSB_REG_STATUS1A_RXSOP BIT(0)
#define FUSB_REG_INTERRUPTA 0x3E
#define FUSB_REG_INTERRUPTA_OCP_TEMP BIT(7)
#define FUSB_REG_INTERRUPTA_TOGDONE BIT(6)
#define FUSB_REG_INTERRUPTA_SOFTFAIL BIT(5)
#define FUSB_REG_INTERRUPTA_RETRYFAIL BIT(4)
#define FUSB_REG_INTERRUPTA_HARDSENT BIT(3)
#define FUSB_REG_INTERRUPTA_TX_SUCCESS BIT(2)
#define FUSB_REG_INTERRUPTA_SOFTRESET BIT(1)
#define FUSB_REG_INTERRUPTA_HARDRESET BIT(0)
#define FUSB_REG_INTERRUPTB 0x3F
#define FUSB_REG_INTERRUPTB_GCRCSENT BIT(0)
#define FUSB_REG_STATUS0 0x40
#define FUSB_REG_STATUS0_VBUSOK BIT(7)
#define FUSB_REG_STATUS0_ACTIVITY BIT(6)
#define FUSB_REG_STATUS0_COMP BIT(5)
#define FUSB_REG_STATUS0_CRC_CHK BIT(4)
#define FUSB_REG_STATUS0_ALERT BIT(3)
#define FUSB_REG_STATUS0_WAKE BIT(2)
#define FUSB_REG_STATUS0_BC_LVL_MASK 0x03
#define FUSB_REG_STATUS0_BC_LVL_0_200 0x0
#define FUSB_REG_STATUS0_BC_LVL_200_600 0x1
#define FUSB_REG_STATUS0_BC_LVL_600_1230 0x2
#define FUSB_REG_STATUS0_BC_LVL_1230_MAX 0x3
#define FUSB_REG_STATUS0_BC_LVL1 BIT(1)
#define FUSB_REG_STATUS0_BC_LVL0 BIT(0)
#define FUSB_REG_STATUS1 0x41
#define FUSB_REG_STATUS1_RXSOP2 BIT(7)
#define FUSB_REG_STATUS1_RXSOP1 BIT(6)
#define FUSB_REG_STATUS1_RX_EMPTY BIT(5)
#define FUSB_REG_STATUS1_RX_FULL BIT(4)
#define FUSB_REG_STATUS1_TX_EMPTY BIT(3)
#define FUSB_REG_STATUS1_TX_FULL BIT(2)
#define FUSB_REG_INTERRUPT 0x42
#define FUSB_REG_INTERRUPT_VBUSOK BIT(7)
#define FUSB_REG_INTERRUPT_ACTIVITY BIT(6)
#define FUSB_REG_INTERRUPT_COMP_CHNG BIT(5)
#define FUSB_REG_INTERRUPT_CRC_CHK BIT(4)
#define FUSB_REG_INTERRUPT_ALERT BIT(3)
#define FUSB_REG_INTERRUPT_WAKE BIT(2)
#define FUSB_REG_INTERRUPT_COLLISION BIT(1)
#define FUSB_REG_INTERRUPT_BC_LVL BIT(0)
#define FUSB_REG_FIFOS 0x43
/* Tokens defined for the FUSB302 TX FIFO */
enum fusb302_txfifo_tokens {
FUSB302_TKN_TXON = 0xA1,
FUSB302_TKN_SYNC1 = 0x12,
FUSB302_TKN_SYNC2 = 0x13,
FUSB302_TKN_SYNC3 = 0x1B,
FUSB302_TKN_RST1 = 0x15,
FUSB302_TKN_RST2 = 0x16,
FUSB302_TKN_PACKSYM = 0x80,
FUSB302_TKN_JAMCRC = 0xFF,
FUSB302_TKN_EOP = 0x14,
FUSB302_TKN_TXOFF = 0xFE,
};
#endif