GNUBoot
/
coreboot-libre-fam15h-rdimm
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
coreboot-libre-fam15h-rdimm/3rdparty/chromeec/common/usb_pd_tcpc.c

1458 lines
38 KiB
C
Raw Blame History

/* Copyright 2015 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "adc.h"
#include "common.h"
#include "config.h"
#include "console.h"
#include "crc.h"
#include "ec_commands.h"
#include "gpio.h"
#include "hooks.h"
#include "host_command.h"
#include "registers.h"
#include "system.h"
#include "task.h"
#include "tcpci.h"
#include "tcpm.h"
#include "timer.h"
#include "util.h"
#include "usb_pd.h"
#include "usb_pd_config.h"
#include "usb_pd_tcpm.h"
#ifdef CONFIG_COMMON_RUNTIME
#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args)
#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args)
/*
* Debug log level - higher number == more log
* Level 0: Log state transitions
* Level 1: Level 0, plus packet info
* Level 2: Level 1, plus ping packet and packet dump on error
*
* Note that higher log level causes timing changes and thus may affect
* performance.
*/
static int debug_level;
static struct mutex pd_crc_lock;
#else
#define CPRINTF(format, args...)
static const int debug_level;
#endif
/* Encode 5 bits using Biphase Mark Coding */
#define BMC(x) ((x & 1 ? 0x001 : 0x3FF) \
^ (x & 2 ? 0x004 : 0x3FC) \
^ (x & 4 ? 0x010 : 0x3F0) \
^ (x & 8 ? 0x040 : 0x3C0) \
^ (x & 16 ? 0x100 : 0x300))
/* 4b/5b + Bimark Phase encoding */
static const uint16_t bmc4b5b[] = {
/* 0 = 0000 */ BMC(0x1E) /* 11110 */,
/* 1 = 0001 */ BMC(0x09) /* 01001 */,
/* 2 = 0010 */ BMC(0x14) /* 10100 */,
/* 3 = 0011 */ BMC(0x15) /* 10101 */,
/* 4 = 0100 */ BMC(0x0A) /* 01010 */,
/* 5 = 0101 */ BMC(0x0B) /* 01011 */,
/* 6 = 0110 */ BMC(0x0E) /* 01110 */,
/* 7 = 0111 */ BMC(0x0F) /* 01111 */,
/* 8 = 1000 */ BMC(0x12) /* 10010 */,
/* 9 = 1001 */ BMC(0x13) /* 10011 */,
/* A = 1010 */ BMC(0x16) /* 10110 */,
/* B = 1011 */ BMC(0x17) /* 10111 */,
/* C = 1100 */ BMC(0x1A) /* 11010 */,
/* D = 1101 */ BMC(0x1B) /* 11011 */,
/* E = 1110 */ BMC(0x1C) /* 11100 */,
/* F = 1111 */ BMC(0x1D) /* 11101 */,
/* Sync-1 K-code 11000 Startsynch #1 */
/* Sync-2 K-code 10001 Startsynch #2 */
/* RST-1 K-code 00111 Hard Reset #1 */
/* RST-2 K-code 11001 Hard Reset #2 */
/* EOP K-code 01101 EOP End Of Packet */
/* Reserved Error 00000 */
/* Reserved Error 00001 */
/* Reserved Error 00010 */
/* Reserved Error 00011 */
/* Reserved Error 00100 */
/* Reserved Error 00101 */
/* Reserved Error 00110 */
/* Reserved Error 01000 */
/* Reserved Error 01100 */
/* Reserved Error 10000 */
/* Reserved Error 11111 */
};
static const uint8_t dec4b5b[] = {
/* Error */ 0x10 /* 00000 */,
/* Error */ 0x10 /* 00001 */,
/* Error */ 0x10 /* 00010 */,
/* Error */ 0x10 /* 00011 */,
/* Error */ 0x10 /* 00100 */,
/* Error */ 0x10 /* 00101 */,
/* Error */ 0x10 /* 00110 */,
/* RST-1 */ 0x13 /* 00111 K-code: Hard Reset #1 */,
/* Error */ 0x10 /* 01000 */,
/* 1 = 0001 */ 0x01 /* 01001 */,
/* 4 = 0100 */ 0x04 /* 01010 */,
/* 5 = 0101 */ 0x05 /* 01011 */,
/* Error */ 0x10 /* 01100 */,
/* EOP */ 0x15 /* 01101 K-code: EOP End Of Packet */,
/* 6 = 0110 */ 0x06 /* 01110 */,
/* 7 = 0111 */ 0x07 /* 01111 */,
/* Error */ 0x10 /* 10000 */,
/* Sync-2 */ 0x12 /* 10001 K-code: Startsynch #2 */,
/* 8 = 1000 */ 0x08 /* 10010 */,
/* 9 = 1001 */ 0x09 /* 10011 */,
/* 2 = 0010 */ 0x02 /* 10100 */,
/* 3 = 0011 */ 0x03 /* 10101 */,
/* A = 1010 */ 0x0A /* 10110 */,
/* B = 1011 */ 0x0B /* 10111 */,
/* Sync-1 */ 0x11 /* 11000 K-code: Startsynch #1 */,
/* RST-2 */ 0x14 /* 11001 K-code: Hard Reset #2 */,
/* C = 1100 */ 0x0C /* 11010 */,
/* D = 1101 */ 0x0D /* 11011 */,
/* E = 1110 */ 0x0E /* 11100 */,
/* F = 1111 */ 0x0F /* 11101 */,
/* 0 = 0000 */ 0x00 /* 11110 */,
/* Error */ 0x10 /* 11111 */,
};
/* Start of Packet sequence : three Sync-1 K-codes, then one Sync-2 K-code */
#define PD_SOP (PD_SYNC1 | (PD_SYNC1<<5) | (PD_SYNC1<<10) | (PD_SYNC2<<15))
#define PD_SOP_PRIME (PD_SYNC1 | (PD_SYNC1<<5) | \
(PD_SYNC3<<10) | (PD_SYNC3<<15))
#define PD_SOP_PRIME_PRIME (PD_SYNC1 | (PD_SYNC3<<5) | \
(PD_SYNC1<<10) | (PD_SYNC3<<15))
/* Hard Reset sequence : three RST-1 K-codes, then one RST-2 K-code */
#define PD_HARD_RESET (PD_RST1 | (PD_RST1 << 5) |\
(PD_RST1 << 10) | (PD_RST2 << 15))
/*
* Polarity based on 'DFP Perspective' (see table USB Type-C Cable and Connector
* Specification)
*
* CC1 CC2 STATE POSITION
* ----------------------------------------
* open open NC N/A
* Rd open UFP attached 1
* open Rd UFP attached 2
* open Ra pwr cable no UFP N/A
* Ra open pwr cable no UFP N/A
* Rd Ra pwr cable & UFP 1
* Ra Rd pwr cable & UFP 2
* Rd Rd dbg accessory N/A
* Ra Ra audio accessory N/A
*
* Note, V(Rd) > V(Ra)
*/
#ifndef PD_SRC_RD_THRESHOLD
#define PD_SRC_RD_THRESHOLD PD_SRC_DEF_RD_THRESH_MV
#endif
#ifndef PD_SRC_VNC
#define PD_SRC_VNC PD_SRC_DEF_VNC_MV
#endif
#ifndef CC_RA
#define CC_RA(port, cc, sel) (cc < PD_SRC_RD_THRESHOLD)
#endif
#define CC_RD(cc) ((cc >= PD_SRC_RD_THRESHOLD) && (cc < PD_SRC_VNC))
#ifndef CC_NC
#define CC_NC(port, cc, sel) (cc >= PD_SRC_VNC)
#endif
/*
* Polarity based on 'UFP Perspective'.
*
* CC1 CC2 STATE POSITION
* ----------------------------------------
* open open NC N/A
* Rp open DFP attached 1
* open Rp DFP attached 2
* Rp Rp Accessory attached N/A
*/
#ifndef PD_SNK_VA
#define PD_SNK_VA PD_SNK_VA_MV
#endif
#define CC_RP(cc) (cc >= PD_SNK_VA)
/*
* Type C power source charge current limits are identified by their cc
* voltage (set by selecting the proper Rd resistor). Any voltage below
* TYPE_C_SRC_500_THRESHOLD will not be identified as a type C charger.
*/
#define TYPE_C_SRC_500_THRESHOLD PD_SRC_RD_THRESHOLD
#define TYPE_C_SRC_1500_THRESHOLD 660 /* mV */
#define TYPE_C_SRC_3000_THRESHOLD 1230 /* mV */
/* Convert TCPC Alert register to index into pd.alert[] */
#define ALERT_REG_TO_INDEX(reg) (reg - TCPC_REG_ALERT)
/* PD transmit errors */
enum pd_tx_errors {
PD_TX_ERR_GOODCRC = -1, /* Failed to receive goodCRC */
PD_TX_ERR_DISABLED = -2, /* Attempted transmit even though disabled */
PD_TX_ERR_INV_ACK = -4, /* Received different packet instead of gCRC */
PD_TX_ERR_COLLISION = -5 /* Collision detected during transmit */
};
/* PD Header with SOP* encoded in bits 31 - 28 */
union pd_header_sop {
uint16_t pd_header;
uint32_t head;
};
/*
* If TCPM is not on this chip, and PD low power is defined, then use low
* power task delay logic.
*/
#if !defined(CONFIG_USB_POWER_DELIVERY) && defined(CONFIG_USB_PD_LOW_POWER)
#define TCPC_LOW_POWER
#endif
/*
* Receive message buffer size. Buffer physical size is RX_BUFFER_SIZE + 1,
* but only RX_BUFFER_SIZE of that memory is used to store messages that can
* be retrieved from TCPM. The last slot is a temporary buffer for collecting
* a message before deciding whether or not to keep it.
*/
#ifdef CONFIG_USB_POWER_DELIVERY
#define RX_BUFFER_SIZE 1
#else
#define RX_BUFFER_SIZE 2
#endif
static struct pd_port_controller {
/* current port power role (SOURCE or SINK) */
uint8_t power_role;
/* current port data role (DFP or UFP) */
uint8_t data_role;
/* Port polarity : 0 => CC1 is CC line, 1 => CC2 is CC line */
uint8_t polarity;
/* Our CC pull resistor setting */
uint8_t cc_pull;
/* CC status */
uint8_t cc_status[2];
/* TCPC alert status */
uint16_t alert;
uint16_t alert_mask;
/* RX enabled */
uint8_t rx_enabled;
/* Power status */
uint8_t power_status;
uint8_t power_status_mask;
#ifdef TCPC_LOW_POWER
/* Timestamp beyond which we allow low power task sampling */
timestamp_t low_power_ts;
#endif
/* Last received */
int rx_head[RX_BUFFER_SIZE+1];
uint32_t rx_payload[RX_BUFFER_SIZE+1][7];
int rx_buf_head, rx_buf_tail;
/* Next transmit */
enum tcpm_transmit_type tx_type;
uint16_t tx_head;
uint32_t tx_payload[7];
const uint32_t *tx_data;
} pd[CONFIG_USB_PD_PORT_COUNT];
static int rx_buf_is_full(int port)
{
/*
* TODO: Refactor these to use the incrementing-counter idiom instead of
* the wrapping-counter idiom to reclaim the last buffer entry.
*
* Buffer is full if the tail is 1 ahead of head.
*/
int diff = pd[port].rx_buf_tail - pd[port].rx_buf_head;
return (diff == 1) || (diff == -RX_BUFFER_SIZE);
}
int rx_buf_is_empty(int port)
{
/* Buffer is empty if the head and tail are the same */
return pd[port].rx_buf_tail == pd[port].rx_buf_head;
}
void rx_buf_clear(int port)
{
pd[port].rx_buf_tail = pd[port].rx_buf_head;
}
static void rx_buf_increment(int port, int *buf_ptr)
{
*buf_ptr = *buf_ptr == RX_BUFFER_SIZE ? 0 : *buf_ptr + 1;
}
static inline int encode_short(int port, int off, uint16_t val16)
{
off = pd_write_sym(port, off, bmc4b5b[(val16 >> 0) & 0xF]);
off = pd_write_sym(port, off, bmc4b5b[(val16 >> 4) & 0xF]);
off = pd_write_sym(port, off, bmc4b5b[(val16 >> 8) & 0xF]);
return pd_write_sym(port, off, bmc4b5b[(val16 >> 12) & 0xF]);
}
int encode_word(int port, int off, uint32_t val32)
{
off = encode_short(port, off, (val32 >> 0) & 0xFFFF);
return encode_short(port, off, (val32 >> 16) & 0xFFFF);
}
/* prepare a 4b/5b-encoded PD message to send */
int prepare_message(int port, uint16_t header, uint8_t cnt,
const uint32_t *data)
{
int off, i;
/* 64-bit preamble */
off = pd_write_preamble(port);
#if defined(CONFIG_USB_TYPEC_VPD) || defined(CONFIG_USB_TYPEC_CTVPD)
/* Start Of Packet Prime: 2x Sync-1 + 2x Sync-3 */
off = pd_write_sym(port, off, BMC(PD_SYNC1));
off = pd_write_sym(port, off, BMC(PD_SYNC1));
off = pd_write_sym(port, off, BMC(PD_SYNC3));
off = pd_write_sym(port, off, BMC(PD_SYNC3));
#else
/* Start Of Packet: 3x Sync-1 + 1x Sync-2 */
off = pd_write_sym(port, off, BMC(PD_SYNC1));
off = pd_write_sym(port, off, BMC(PD_SYNC1));
off = pd_write_sym(port, off, BMC(PD_SYNC1));
off = pd_write_sym(port, off, BMC(PD_SYNC2));
#endif
/* header */
off = encode_short(port, off, header);
#ifdef CONFIG_COMMON_RUNTIME
mutex_lock(&pd_crc_lock);
#endif
crc32_init();
crc32_hash16(header);
/* data payload */
for (i = 0; i < cnt; i++) {
off = encode_word(port, off, data[i]);
crc32_hash32(data[i]);
}
/* CRC */
off = encode_word(port, off, crc32_result());
#ifdef CONFIG_COMMON_RUNTIME
mutex_unlock(&pd_crc_lock);
#endif
/* End Of Packet */
off = pd_write_sym(port, off, BMC(PD_EOP));
/* Ensure that we have a final edge */
return pd_write_last_edge(port, off);
}
static int send_hard_reset(int port)
{
int off;
if (debug_level >= 1)
CPRINTF("C%d Send hard reset\n", port);
/* 64-bit preamble */
off = pd_write_preamble(port);
/* Hard-Reset: 3x RST-1 + 1x RST-2 */
off = pd_write_sym(port, off, BMC(PD_RST1));
off = pd_write_sym(port, off, BMC(PD_RST1));
off = pd_write_sym(port, off, BMC(PD_RST1));
off = pd_write_sym(port, off, BMC(PD_RST2));
/* Ensure that we have a final edge */
off = pd_write_last_edge(port, off);
/* Transmit the packet */
if (pd_start_tx(port, pd[port].polarity, off) < 0)
return PD_TX_ERR_COLLISION;
pd_tx_done(port, pd[port].polarity);
/* Keep RX monitoring on */
pd_rx_enable_monitoring(port);
return 0;
}
static int send_validate_message(int port, uint16_t header,
const uint32_t *data)
{
int r;
static uint32_t payload[7];
uint8_t expected_msg_id = PD_HEADER_ID(header);
uint8_t cnt = PD_HEADER_CNT(header);
int retries = PD_HEADER_TYPE(header) == PD_DATA_SOURCE_CAP ?
0 : PD_RETRY_COUNT;
/* retry 3 times if we are not getting a valid answer */
for (r = 0; r <= retries; r++) {
int bit_len, head;
/* write the encoded packet in the transmission buffer */
bit_len = prepare_message(port, header, cnt, data);
/* Transmit the packet */
if (pd_start_tx(port, pd[port].polarity, bit_len) < 0) {
/*
* Collision detected, return immediately so we can
* respond to what we have received.
*/
return PD_TX_ERR_COLLISION;
}
pd_tx_done(port, pd[port].polarity);
/*
* If this is the first attempt, leave RX monitoring off,
* and do a blocking read of the channel until timeout or
* packet received. If we failed the first try, enable
* interrupt and yield to other tasks, so that we don't
* starve them.
*/
if (r) {
pd_rx_enable_monitoring(port);
/* Wait for message receive timeout */
if (task_wait_event(USB_PD_RX_TMOUT_US) ==
TASK_EVENT_TIMER)
continue;
/*
* Make sure we woke up due to rx recd, otherwise
* we need to manually start
*/
if (!pd_rx_started(port)) {
pd_rx_disable_monitoring(port);
pd_rx_start(port);
}
} else {
/* starting waiting for GoodCrc */
pd_rx_start(port);
}
/* read the incoming packet if any */
head = pd_analyze_rx(port, payload);
pd_rx_complete(port);
/* keep RX monitoring on to avoid collisions */
pd_rx_enable_monitoring(port);
if (head > 0) { /* we got a good packet, analyze it */
int type = PD_HEADER_TYPE(head);
int nb = PD_HEADER_CNT(head);
uint8_t id = PD_HEADER_ID(head);
if (type == PD_CTRL_GOOD_CRC && nb == 0 &&
id == expected_msg_id) {
/* got the GoodCRC we were expecting */
/* do not catch last edges as a new packet */
udelay(20);
return bit_len;
} else {
/*
* we have received a good packet
* but not the expected GoodCRC,
* the other side is trying to contact us,
* bail out immediately so we can get the retry.
*/
return PD_TX_ERR_INV_ACK;
}
}
}
/* we failed all the re-transmissions */
if (debug_level >= 1)
CPRINTF("TX NOACK%d %04x/%d\n", port, header, cnt);
return PD_TX_ERR_GOODCRC;
}
static void send_goodcrc(int port, int id)
{
uint16_t header = PD_HEADER(PD_CTRL_GOOD_CRC, pd[port].power_role,
pd[port].data_role, id, 0, 0, 0);
int bit_len = prepare_message(port, header, 0, NULL);
if (pd_start_tx(port, pd[port].polarity, bit_len) < 0)
/* another packet recvd before we could send goodCRC */
return;
pd_tx_done(port, pd[port].polarity);
/* Keep RX monitoring on */
pd_rx_enable_monitoring(port);
}
#if 0
/* TODO: when/how do we trigger this ? */
static int analyze_rx_bist(int port);
void bist_mode_2_rx(int port)
{
int analyze_bist = 0;
int num_bits;
timestamp_t start_time;
/* monitor for incoming packet */
pd_rx_enable_monitoring(port);
/* loop until we start receiving data */
start_time.val = get_time().val;
while ((get_time().val - start_time.val) < (500*MSEC)) {
task_wait_event(10*MSEC);
/* incoming packet ? */
if (pd_rx_started(port)) {
analyze_bist = 1;
break;
}
}
if (analyze_bist) {
/*
* once we start receiving bist data, analyze 40 bytes
* every 10 msec. Continue analyzing until BIST data
* is no longer received. The standard limits the max
* BIST length to 60 msec.
*/
start_time.val = get_time().val;
while ((get_time().val - start_time.val)
< (PD_T_BIST_RECEIVE)) {
num_bits = analyze_rx_bist(port);
pd_rx_complete(port);
/*
* If no data was received, then analyze_rx_bist()
* will return a -1 and there is no need to stay
* in this mode
*/
if (num_bits == -1)
break;
msleep(10);
pd_rx_enable_monitoring(port);
}
} else {
CPRINTF("BIST RX TO\n");
}
}
#endif
static void bist_mode_2_tx(int port)
{
int bit;
CPRINTF("BIST 2: p%d\n", port);
/*
* build context buffer with 5 bytes, where the data is
* alternating 1's and 0's.
*/
bit = pd_write_sym(port, 0, BMC(0x15));
bit = pd_write_sym(port, bit, BMC(0x0a));
bit = pd_write_sym(port, bit, BMC(0x15));
bit = pd_write_sym(port, bit, BMC(0x0a));
/* start a circular DMA transfer */
pd_tx_set_circular_mode(port);
pd_start_tx(port, pd[port].polarity, bit);
task_wait_event(PD_T_BIST_TRANSMIT);
/* clear dma circular mode, will also stop dma */
pd_tx_clear_circular_mode(port);
/* finish and cleanup transmit */
pd_tx_done(port, pd[port].polarity);
}
static inline int decode_short(int port, int off, uint16_t *val16)
{
uint32_t w;
int end;
end = pd_dequeue_bits(port, off, 20, &w);
#if 0 /* DEBUG */
CPRINTS("%d-%d: %05x %x:%x:%x:%x",
off, end, w,
dec4b5b[(w >> 15) & 0x1f], dec4b5b[(w >> 10) & 0x1f],
dec4b5b[(w >> 5) & 0x1f], dec4b5b[(w >> 0) & 0x1f]);
#endif
*val16 = dec4b5b[w & 0x1f] |
(dec4b5b[(w >> 5) & 0x1f] << 4) |
(dec4b5b[(w >> 10) & 0x1f] << 8) |
(dec4b5b[(w >> 15) & 0x1f] << 12);
return end;
}
static inline int decode_word(int port, int off, uint32_t *val32)
{
off = decode_short(port, off, (uint16_t *)val32);
return decode_short(port, off, ((uint16_t *)val32 + 1));
}
#ifdef CONFIG_COMMON_RUNTIME
#if 0
/*
* TODO: when/how do we trigger this ? Could add custom vendor command
* to TCPCI to enter bist verification? Is there an easier way?
*/
static int count_set_bits(int n)
{
int count = 0;
while (n) {
n &= (n - 1);
count++;
}
return count;
}
static int analyze_rx_bist(int port)
{
int i = 0, bit = -1;
uint32_t w, match;
int invalid_bits = 0;
int bits_analyzed = 0;
static int total_invalid_bits;
/* dequeue bits until we see a full byte of alternating 1's and 0's */
while (i < 10 && (bit < 0 || (w != 0xaa && w != 0x55)))
bit = pd_dequeue_bits(port, i++, 8, &w);
/* if we didn't find any bytes that match criteria, display error */
if (i == 10) {
CPRINTF("invalid pattern\n");
return -1;
}
/*
* now we know what matching byte we are looking for, dequeue a bunch
* more data and count how many bits differ from expectations.
*/
match = w;
bit = i - 1;
for (i = 0; i < 40; i++) {
bit = pd_dequeue_bits(port, bit, 8, &w);
if (i && (i % 20 == 0))
CPRINTF("\n");
CPRINTF("%02x ", w);
bits_analyzed += 8;
invalid_bits += count_set_bits(w ^ match);
}
total_invalid_bits += invalid_bits;
CPRINTF("\nInvalid: %d/%d\n",
invalid_bits, total_invalid_bits);
return bits_analyzed;
}
#endif
#endif
int pd_analyze_rx(int port, uint32_t *payload)
{
int bit;
char *msg = "---";
uint32_t val = 0;
union pd_header_sop phs;
uint32_t pcrc, ccrc;
int p, cnt;
uint32_t eop;
pd_init_dequeue(port);
/* Detect preamble */
bit = pd_find_preamble(port);
if (bit == PD_RX_ERR_HARD_RESET || bit == PD_RX_ERR_CABLE_RESET) {
/* Hard reset or cable reset */
return bit;
} else if (bit < 0) {
msg = "Preamble";
goto packet_err;
}
/* Find the Start Of Packet sequence */
while (bit > 0) {
bit = pd_dequeue_bits(port, bit, 20, &val);
#if defined(CONFIG_USB_TYPEC_VPD) || defined(CONFIG_USB_TYPEC_CTVPD)
if (val == PD_SOP_PRIME) {
break;
} else if (val == PD_SOP) {
CPRINTF("SOP\n");
return PD_RX_ERR_UNSUPPORTED_SOP;
} else if (val == PD_SOP_PRIME_PRIME) {
CPRINTF("SOP''\n");
return PD_RX_ERR_UNSUPPORTED_SOP;
}
#else /* CONFIG_USB_TYPEC_VPD || CONFIG_USB_TYPEC_CTVPD */
#ifdef CONFIG_USB_PD_DECODE_SOP
if (val == PD_SOP || val == PD_SOP_PRIME ||
val == PD_SOP_PRIME_PRIME)
break;
#else
if (val == PD_SOP) {
break;
} else if (val == PD_SOP_PRIME) {
CPRINTF("SOP'\n");
return PD_RX_ERR_UNSUPPORTED_SOP;
} else if (val == PD_SOP_PRIME_PRIME) {
CPRINTF("SOP''\n");
return PD_RX_ERR_UNSUPPORTED_SOP;
}
#endif /* CONFIG_USB_PD_DECODE_SOP */
#endif /* CONFIG_USB_TYPEC_VPD || CONFIG_USB_TYPEC_CTVPD */
}
if (bit < 0) {
#ifdef CONFIG_USB_PD_DECODE_SOP
if (val == PD_SOP)
msg = "SOP";
else if (val == PD_SOP_PRIME)
msg = "SOP'";
else if (val == PD_SOP_PRIME_PRIME)
msg = "SOP''";
else
msg = "SOP*";
#else
msg = "SOP";
#endif
goto packet_err;
}
phs.head = 0;
/* read header */
bit = decode_short(port, bit, &phs.pd_header);
#ifdef CONFIG_COMMON_RUNTIME
mutex_lock(&pd_crc_lock);
#endif
crc32_init();
crc32_hash16(phs.pd_header);
cnt = PD_HEADER_CNT(phs.pd_header);
#ifdef CONFIG_USB_PD_DECODE_SOP
/* Encode message address */
if (val == PD_SOP) {
phs.head |= PD_HEADER_SOP(PD_MSG_SOP);
} else if (val == PD_SOP_PRIME) {
phs.head |= PD_HEADER_SOP(PD_MSG_SOPP);
} else if (val == PD_SOP_PRIME_PRIME) {
phs.head |= PD_HEADER_SOP(PD_MSG_SOPPP);
} else {
msg = "SOP*";
goto packet_err;
}
#endif
/* read payload data */
for (p = 0; p < cnt && bit > 0; p++) {
bit = decode_word(port, bit, payload+p);
crc32_hash32(payload[p]);
}
ccrc = crc32_result();
#ifdef CONFIG_COMMON_RUNTIME
mutex_unlock(&pd_crc_lock);
#endif
if (bit < 0) {
msg = "len";
goto packet_err;
}
/* check transmitted CRC */
bit = decode_word(port, bit, &pcrc);
if (bit < 0 || pcrc != ccrc) {
msg = "CRC";
if (pcrc != ccrc)
bit = PD_RX_ERR_CRC;
if (debug_level >= 1)
CPRINTF("CRC%d %08x <> %08x\n", port, pcrc, ccrc);
goto packet_err;
}
/*
* Check EOP. EOP is 5 bits, but last bit may not be able to
* be dequeued, depending on ending state of CC line, so stop
* at 4 bits (assumes last bit is 0).
*/
bit = pd_dequeue_bits(port, bit, 4, &eop);
if (bit < 0 || eop != PD_EOP) {
msg = "EOP";
goto packet_err;
}
return phs.head;
packet_err:
if (debug_level >= 2)
pd_dump_packet(port, msg);
else
CPRINTF("RXERR%d %s\n", port, msg);
return bit;
}
static void handle_request(int port, uint16_t head)
{
int cnt = PD_HEADER_CNT(head);
if (PD_HEADER_TYPE(head) != PD_CTRL_GOOD_CRC || cnt)
send_goodcrc(port, PD_HEADER_ID(head));
else
/* keep RX monitoring on to avoid collisions */
pd_rx_enable_monitoring(port);
}
/* Convert CC voltage to CC status */
static int cc_voltage_to_status(int port, int cc_volt, int cc_sel)
{
/* If we have a pull-up, then we are source, check for Rd. */
if (pd[port].cc_pull == TYPEC_CC_RP) {
if (CC_NC(port, cc_volt, cc_sel))
return TYPEC_CC_VOLT_OPEN;
else if (CC_RA(port, cc_volt, cc_sel))
return TYPEC_CC_VOLT_RA;
else
return TYPEC_CC_VOLT_RD;
/* If we have a pull-down, then we are sink, check for Rp. */
}
#ifdef CONFIG_USB_PD_DUAL_ROLE
else if (pd[port].cc_pull == TYPEC_CC_RD) {
if (cc_volt >= TYPE_C_SRC_3000_THRESHOLD)
return TYPEC_CC_VOLT_RP_3_0;
else if (cc_volt >= TYPE_C_SRC_1500_THRESHOLD)
return TYPEC_CC_VOLT_RP_1_5;
else if (CC_RP(cc_volt))
return TYPEC_CC_VOLT_RP_DEF;
else
return TYPEC_CC_VOLT_OPEN;
}
#endif
/* If we are open, then always return 0 */
else
return 0;
}
static void alert(int port, int mask)
{
/* Always update the Alert status register */
pd[port].alert |= mask;
/*
* Only send interrupt to TCPM if corresponding
* bit in the alert_enable register is set.
*/
if (pd[port].alert_mask & mask)
tcpc_alert(port);
}
int tcpc_run(int port, int evt)
{
int cc, i, res;
/* incoming packet ? */
if (pd_rx_started(port) && pd[port].rx_enabled) {
/* Get message and place at RX buffer head */
res = pd[port].rx_head[pd[port].rx_buf_head] =
pd_analyze_rx(port,
pd[port].rx_payload[pd[port].rx_buf_head]);
pd_rx_complete(port);
/*
* If there is space in buffer, then increment head to keep
* the message and send goodCRC. If this is a hard reset,
* send alert regardless of rx buffer status. Else if there is
* no space in buffer, then do not send goodCRC and drop
* message.
*/
if (res > 0 && !rx_buf_is_full(port)) {
rx_buf_increment(port, &pd[port].rx_buf_head);
handle_request(port, res);
alert(port, TCPC_REG_ALERT_RX_STATUS);
} else if (res == PD_RX_ERR_HARD_RESET) {
alert(port, TCPC_REG_ALERT_RX_HARD_RST);
}
}
/* outgoing packet ? */
if ((evt & PD_EVENT_TX) && pd[port].rx_enabled) {
switch (pd[port].tx_type) {
#if defined(CONFIG_USB_TYPEC_VPD) || defined(CONFIG_USB_TYPEC_CTVPD)
case TCPC_TX_SOP_PRIME:
#else
case TCPC_TX_SOP:
#endif
res = send_validate_message(port,
pd[port].tx_head,
pd[port].tx_data);
break;
case TCPC_TX_BIST_MODE_2:
bist_mode_2_tx(port);
res = 0;
break;
case TCPC_TX_HARD_RESET:
res = send_hard_reset(port);
break;
default:
res = PD_TX_ERR_DISABLED;
break;
}
/* send appropriate alert for tx completion */
if (res >= 0)
alert(port, TCPC_REG_ALERT_TX_SUCCESS);
else if (res == PD_TX_ERR_GOODCRC)
alert(port, TCPC_REG_ALERT_TX_FAILED);
else
alert(port, TCPC_REG_ALERT_TX_DISCARDED);
} else {
/* If we have nothing to transmit, then sample CC lines */
/* CC pull changed, wait 1ms for CC voltage to stabilize */
if (evt & PD_EVENT_CC)
usleep(MSEC);
/* check CC lines */
for (i = 0; i < 2; i++) {
/* read CC voltage */
cc = pd_adc_read(port, i);
/* convert voltage to status, and check status change */
cc = cc_voltage_to_status(port, cc, i);
if (pd[port].cc_status[i] != cc) {
pd[port].cc_status[i] = cc;
alert(port, TCPC_REG_ALERT_CC_STATUS);
}
}
}
/* make sure PD monitoring is enabled to wake on PD RX */
if (pd[port].rx_enabled)
pd_rx_enable_monitoring(port);
#ifdef TCPC_LOW_POWER
/*
* If we are presenting Rd with no connection, and timestamp is
* past the low power timestamp, then we don't need to sample
* CC lines as often. In this case, our connection delay should not
* actually increased because we will get an interrupt on VBUS detect.
*/
return (get_time().val >= pd[port].low_power_ts.val &&
pd[port].cc_pull == TYPEC_CC_RD &&
cc_is_open(pd[port].cc_status[0], pd[port].cc_status[1]))
? 200 * MSEC
: 10 * MSEC;
#else
return 10*MSEC;
#endif
}
#if !defined(CONFIG_USB_POWER_DELIVERY) && !defined(CONFIG_USB_SM_FRAMEWORK)
void pd_task(void *u)
{
int port = TASK_ID_TO_PD_PORT(task_get_current());
int timeout = 10*MSEC;
int evt;
/* initialize phy task */
tcpc_init(port);
/* we are now initialized */
pd[port].power_status &= ~TCPC_REG_POWER_STATUS_UNINIT;
while (1) {
/* wait for next event/packet or timeout expiration */
evt = task_wait_event(timeout);
/* run phy task once */
timeout = tcpc_run(port, evt);
}
}
#endif
void pd_rx_event(int port)
{
task_set_event(PD_PORT_TO_TASK_ID(port), TASK_EVENT_WAKE, 0);
}
int tcpc_alert_status(int port, int *alert)
{
/* return the value of the TCPC Alert register */
uint16_t ret = pd[port].alert;
*alert = ret;
return EC_SUCCESS;
}
int tcpc_alert_status_clear(int port, uint16_t mask)
{
/*
* If the RX status alert is attempting to be cleared, then increment
* rx buffer tail pointer. if the RX buffer is not empty, then keep
* the RX status alert active.
*/
if (mask & TCPC_REG_ALERT_RX_STATUS) {
if (!rx_buf_is_empty(port)) {
rx_buf_increment(port, &pd[port].rx_buf_tail);
if (!rx_buf_is_empty(port))
/* buffer is not empty, keep alert active */
mask &= ~TCPC_REG_ALERT_RX_STATUS;
}
}
/* clear only the bits specified by the TCPM */
pd[port].alert &= ~mask;
#ifndef CONFIG_USB_POWER_DELIVERY
/* Set Alert# inactive if all alert bits clear */
if (!pd[port].alert)
tcpc_alert_clear(port);
#endif
return EC_SUCCESS;
}
int tcpc_alert_mask_set(int port, uint16_t mask)
{
/* Update the alert mask as specificied by the TCPM */
pd[port].alert_mask = mask;
return EC_SUCCESS;
}
int tcpc_set_cc(int port, int pull)
{
/* If CC pull resistor not changing, then nothing to do */
if (pd[port].cc_pull == pull)
return EC_SUCCESS;
/* Change CC pull resistor */
pd[port].cc_pull = pull;
#ifdef CONFIG_USB_PD_DUAL_ROLE
pd_set_host_mode(port, pull == TYPEC_CC_RP);
#endif
#ifdef TCPC_LOW_POWER
/*
* Reset the low power timestamp every time CC termination toggles,
* because we only want to go into low power mode when we are not
* dual-role toggling.
*/
pd[port].low_power_ts.val = get_time().val +
2*(PD_T_DRP_SRC + PD_T_DRP_SNK);
#endif
/*
* Before CC pull can be changed and the task can read the new
* status, we should set the CC status to open, in case TCPM
* asks before it is known for sure.
*/
pd[port].cc_status[0] = TYPEC_CC_VOLT_OPEN;
pd[port].cc_status[1] = pd[port].cc_status[0];
/* Wake the PD phy task with special CC event mask */
/* TODO: use top case if no TCPM on same CPU */
#ifdef CONFIG_USB_POWER_DELIVERY
tcpc_run(port, PD_EVENT_CC);
#else
task_set_event(PD_PORT_TO_TASK_ID(port), PD_EVENT_CC, 0);
#endif
return EC_SUCCESS;
}
int tcpc_get_cc(int port, enum tcpc_cc_voltage_status *cc1,
enum tcpc_cc_voltage_status *cc2)
{
*cc2 = pd[port].cc_status[1];
*cc1 = pd[port].cc_status[0];
return EC_SUCCESS;
}
int board_select_rp_value(int port, int rp) __attribute__((weak));
int tcpc_select_rp_value(int port, int rp)
{
if (board_select_rp_value)
return board_select_rp_value(port, rp);
else
return EC_ERROR_UNIMPLEMENTED;
}
int tcpc_set_polarity(int port, int polarity)
{
pd[port].polarity = polarity;
pd_select_polarity(port, pd[port].polarity);
return EC_SUCCESS;
}
#ifdef CONFIG_USB_PD_TCPC_TRACK_VBUS
static int tcpc_set_power_status(int port, int vbus_present)
{
/* Update VBUS present bit */
if (vbus_present)
pd[port].power_status |= TCPC_REG_POWER_STATUS_VBUS_PRES;
else
pd[port].power_status &= ~TCPC_REG_POWER_STATUS_VBUS_PRES;
/* Set bit Port Power Status bit in Alert register */
if (pd[port].power_status_mask & TCPC_REG_POWER_STATUS_VBUS_PRES)
alert(port, TCPC_REG_ALERT_POWER_STATUS);
return EC_SUCCESS;
}
#endif /* CONFIG_USB_PD_TCPC_TRACK_VBUS */
int tcpc_set_power_status_mask(int port, uint8_t mask)
{
pd[port].power_status_mask = mask;
return EC_SUCCESS;
}
int tcpc_set_vconn(int port, int enable)
{
#ifdef CONFIG_USBC_VCONN
pd_set_vconn(port, pd[port].polarity, enable);
#endif
return EC_SUCCESS;
}
int tcpc_set_rx_enable(int port, int enable)
{
#if defined(CONFIG_LOW_POWER_IDLE) && !defined(CONFIG_USB_POWER_DELIVERY)
int i;
#endif
pd[port].rx_enabled = enable;
if (!enable)
pd_rx_disable_monitoring(port);
#if defined(CONFIG_LOW_POWER_IDLE) && !defined(CONFIG_USB_POWER_DELIVERY)
/* If any PD port is connected, then disable deep sleep */
for (i = 0; i < CONFIG_USB_PD_PORT_COUNT; ++i)
if (pd[i].rx_enabled)
break;
if (i == CONFIG_USB_PD_PORT_COUNT)
enable_sleep(SLEEP_MASK_USB_PD);
else
disable_sleep(SLEEP_MASK_USB_PD);
#endif
return EC_SUCCESS;
}
int tcpc_transmit(int port, enum tcpm_transmit_type type, uint16_t header,
const uint32_t *data)
{
/* Store data to transmit and wake task to send it */
pd[port].tx_type = type;
pd[port].tx_head = header;
pd[port].tx_data = data;
/* TODO: use top case if no TCPM on same CPU */
#ifdef CONFIG_USB_POWER_DELIVERY
tcpc_run(port, PD_EVENT_TX);
#else
task_set_event(PD_PORT_TO_TASK_ID(port), PD_EVENT_TX, 0);
#endif
return EC_SUCCESS;
}
int tcpc_set_msg_header(int port, int power_role, int data_role)
{
pd[port].power_role = power_role;
pd[port].data_role = data_role;
return EC_SUCCESS;
}
int tcpc_get_message(int port, uint32_t *payload, int *head)
{
/* Get message at tail of RX buffer */
int idx = pd[port].rx_buf_tail;
memcpy(payload, pd[port].rx_payload[idx],
sizeof(pd[port].rx_payload[idx]));
*head = pd[port].rx_head[idx];
return EC_SUCCESS;
}
void tcpc_pre_init(void)
{
int i;
/* Mark as uninitialized */
for (i = 0; i < CONFIG_USB_PD_PORT_COUNT; i++)
pd[i].power_status |= TCPC_REG_POWER_STATUS_UNINIT |
TCPC_REG_POWER_STATUS_VBUS_DET;
}
/* Must be prioritized above i2c init */
DECLARE_HOOK(HOOK_INIT, tcpc_pre_init, HOOK_PRIO_INIT_I2C - 1);
void tcpc_init(int port)
{
int i;
/* Initialize physical layer */
pd_hw_init(port, PD_ROLE_DEFAULT(port));
pd[port].cc_pull = PD_ROLE_DEFAULT(port) ==
PD_ROLE_SOURCE ? TYPEC_CC_RP : TYPEC_CC_RD;
#ifdef TCPC_LOW_POWER
/* Don't use low power immediately after boot */
pd[port].low_power_ts.val = get_time().val + SECOND;
#endif
/* make sure PD monitoring is disabled initially */
pd[port].rx_enabled = 0;
/* make initial readings of CC voltages */
for (i = 0; i < 2; i++) {
pd[port].cc_status[i] = cc_voltage_to_status(port,
pd_adc_read(port, i),
i);
}
#ifdef CONFIG_USB_PD_TCPC_TRACK_VBUS
#if CONFIG_USB_PD_PORT_COUNT >= 2
tcpc_set_power_status(port, !gpio_get_level(port ?
GPIO_USB_C1_VBUS_WAKE_L :
GPIO_USB_C0_VBUS_WAKE_L));
#else
tcpc_set_power_status(port, !gpio_get_level(GPIO_USB_C0_VBUS_WAKE_L));
#endif /* CONFIG_USB_PD_PORT_COUNT >= 2 */
#endif /* CONFIG_USB_PD_TCPC_TRACK_VBUS */
/* set default alert and power mask register values */
pd[port].alert_mask = TCPC_REG_ALERT_MASK_ALL;
pd[port].power_status_mask = TCPC_REG_POWER_STATUS_MASK_ALL;
/* set power status alert since the UNINIT bit has been set */
alert(port, TCPC_REG_ALERT_POWER_STATUS);
}
#ifdef CONFIG_USB_PD_TCPC_TRACK_VBUS
void pd_vbus_evt_p0(enum gpio_signal signal)
{
tcpc_set_power_status(TASK_ID_TO_PD_PORT(TASK_ID_PD_C0),
!gpio_get_level(GPIO_USB_C0_VBUS_WAKE_L));
task_wake(TASK_ID_PD_C0);
}
#if CONFIG_USB_PD_PORT_COUNT >= 2
void pd_vbus_evt_p1(enum gpio_signal signal)
{
tcpc_set_power_status(TASK_ID_TO_PD_PORT(TASK_ID_PD_C1),
!gpio_get_level(GPIO_USB_C1_VBUS_WAKE_L));
task_wake(TASK_ID_PD_C1);
}
#endif /* PD_PORT_COUNT >= 2 */
#endif /* CONFIG_USB_PD_TCPC_TRACK_VBUS */
#ifndef CONFIG_USB_POWER_DELIVERY
static void tcpc_i2c_write(int port, int reg, int len, uint8_t *payload)
{
uint16_t alert;
/* If we are not yet initialized, ignore any write command */
if (pd[port].power_status & TCPC_REG_POWER_STATUS_UNINIT)
return;
switch (reg) {
case TCPC_REG_ROLE_CTRL:
tcpc_set_cc(port, TCPC_REG_ROLE_CTRL_CC1(payload[1]));
break;
case TCPC_REG_POWER_CTRL:
tcpc_set_vconn(port, TCPC_REG_POWER_CTRL_VCONN(payload[1]));
break;
case TCPC_REG_TCPC_CTRL:
tcpc_set_polarity(port,
TCPC_REG_TCPC_CTRL_POLARITY(payload[1]));
break;
case TCPC_REG_MSG_HDR_INFO:
tcpc_set_msg_header(port,
TCPC_REG_MSG_HDR_INFO_PROLE(payload[1]),
TCPC_REG_MSG_HDR_INFO_DROLE(payload[1]));
break;
case TCPC_REG_ALERT:
alert = payload[1];
alert |= (payload[2] << 8);
/* clear alert bits specified by the TCPM */
tcpc_alert_status_clear(port, alert);
break;
case TCPC_REG_ALERT_MASK:
alert = payload[1];
alert |= (payload[2] << 8);
tcpc_alert_mask_set(port, alert);
break;
case TCPC_REG_RX_DETECT:
tcpc_set_rx_enable(port, payload[1] &
TCPC_REG_RX_DETECT_SOP_HRST_MASK);
break;
case TCPC_REG_POWER_STATUS_MASK:
tcpc_set_power_status_mask(port, payload[1]);
break;
case TCPC_REG_TX_HDR:
pd[port].tx_head = (payload[2] << 8) | payload[1];
break;
case TCPC_REG_TX_DATA:
memcpy(pd[port].tx_payload, &payload[1], len - 1);
break;
case TCPC_REG_TRANSMIT:
tcpc_transmit(port, TCPC_REG_TRANSMIT_TYPE(payload[1]),
pd[port].tx_head, pd[port].tx_payload);
break;
}
}
static int tcpc_i2c_read(int port, int reg, uint8_t *payload)
{
enum tcpc_cc_voltage_status cc1, cc2;
int alert;
switch (reg) {
case TCPC_REG_VENDOR_ID:
*(uint16_t *)payload = USB_VID_GOOGLE;
return 2;
case TCPC_REG_CC_STATUS:
tcpc_get_cc(port, &cc1, &cc2);
payload[0] = TCPC_REG_CC_STATUS_SET(
pd[port].cc_pull == TYPEC_CC_RD,
pd[port].cc_status[0], pd[port].cc_status[1]);
return 1;
case TCPC_REG_ROLE_CTRL:
payload[0] = TCPC_REG_ROLE_CTRL_SET(0, 0,
pd[port].cc_pull,
pd[port].cc_pull);
return 1;
case TCPC_REG_TCPC_CTRL:
payload[0] = TCPC_REG_TCPC_CTRL_SET(pd[port].polarity);
return 1;
case TCPC_REG_MSG_HDR_INFO:
payload[0] = TCPC_REG_MSG_HDR_INFO_SET(pd[port].data_role,
pd[port].power_role);
return 1;
case TCPC_REG_RX_DETECT:
payload[0] = pd[port].rx_enabled ?
TCPC_REG_RX_DETECT_SOP_HRST_MASK : 0;
return 1;
case TCPC_REG_ALERT:
tcpc_alert_status(port, &alert);
payload[0] = alert & 0xff;
payload[1] = (alert >> 8) & 0xff;
return 2;
case TCPC_REG_ALERT_MASK:
payload[0] = pd[port].alert_mask & 0xff;
payload[1] = (pd[port].alert_mask >> 8) & 0xff;
return 2;
case TCPC_REG_RX_BYTE_CNT:
payload[0] = 3 + 4 *
PD_HEADER_CNT(pd[port].rx_head[pd[port].rx_buf_tail]);
return 1;
case TCPC_REG_RX_HDR:
payload[0] = pd[port].rx_head[pd[port].rx_buf_tail] & 0xff;
payload[1] =
(pd[port].rx_head[pd[port].rx_buf_tail] >> 8) & 0xff;
return 2;
case TCPC_REG_RX_DATA:
memcpy(payload, pd[port].rx_payload[pd[port].rx_buf_tail],
sizeof(pd[port].rx_payload[pd[port].rx_buf_tail]));
return sizeof(pd[port].rx_payload[pd[port].rx_buf_tail]);
case TCPC_REG_POWER_STATUS:
payload[0] = pd[port].power_status;
return 1;
case TCPC_REG_POWER_STATUS_MASK:
payload[0] = pd[port].power_status_mask;
return 1;
case TCPC_REG_TX_HDR:
payload[0] = pd[port].tx_head & 0xff;
payload[1] = (pd[port].tx_head >> 8) & 0xff;
return 2;
case TCPC_REG_TX_DATA:
memcpy(payload, pd[port].tx_payload,
sizeof(pd[port].tx_payload));
return sizeof(pd[port].tx_payload);
default:
return 0;
}
}
void tcpc_i2c_process(int read, int port, int len, uint8_t *payload,
void (*send_response)(int))
{
int i, reg;
if (debug_level >= 1) {
CPRINTF("tcpci p%d: ", port);
for (i = 0; i < len; i++)
CPRINTF("0x%02x ", payload[i]);
CPRINTF("\n");
}
/* length must always be at least 1 */
if (len == 0) {
/*
* if this is a read, we must call send_response() for
* i2c transaction to finishe properly
*/
if (read)
(*send_response)(0);
}
/* if this is a write, length must be at least 2 */
if (!read && len < 2)
return;
/* register is always first byte */
reg = payload[0];
/* perform read or write */
if (read) {
len = tcpc_i2c_read(port, reg, payload);
(*send_response)(len);
} else {
tcpc_i2c_write(port, reg, len, payload);
}
}
#endif
#ifdef CONFIG_COMMON_RUNTIME
static int command_tcpc(int argc, char **argv)
{
int port;
char *e;
if (argc < 2)
return EC_ERROR_PARAM_COUNT;
if (!strcasecmp(argv[1], "dump")) {
int level;
if (argc < 3)
ccprintf("lvl: %d\n", debug_level);
else {
level = strtoi(argv[2], &e, 10);
if (*e)
return EC_ERROR_PARAM2;
debug_level = level;
}
return EC_SUCCESS;
}
/* command: pd <port> <subcmd> [args] */
port = strtoi(argv[1], &e, 10);
if (argc < 3)
return EC_ERROR_PARAM_COUNT;
if (*e || port >= CONFIG_USB_PD_PORT_COUNT)
return EC_ERROR_PARAM2;
if (!strcasecmp(argv[2], "clock")) {
int freq;
if (argc < 4)
return EC_ERROR_PARAM2;
freq = strtoi(argv[3], &e, 10);
if (*e)
return EC_ERROR_PARAM2;
pd_set_clock(port, freq);
ccprintf("set TX frequency to %d Hz\n", freq);
return EC_SUCCESS;
} else if (!strncasecmp(argv[2], "state", 5)) {
ccprintf("Port C%d, %s - CC:%d, CC0:%d, CC1:%d\n"
"Alert: 0x%02x Mask: 0x%04x\n"
"Power Status: 0x%02x Mask: 0x%02x\n", port,
pd[port].rx_enabled ? "Ena" : "Dis",
pd[port].cc_pull,
pd[port].cc_status[0], pd[port].cc_status[1],
pd[port].alert, pd[port].alert_mask,
pd[port].power_status, pd[port].power_status_mask);
}
return EC_SUCCESS;
}
DECLARE_CONSOLE_COMMAND(tcpc, command_tcpc,
"dump [0|1]\n\t<port> [clock|state]",
"Type-C Port Controller");
#endif
Reference in New Issue View Git Blame Copy Permalink