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authorJack Rosenthal <jrosenth@chromium.org>2021-11-04 12:11:58 -0600
committerCommit Bot <commit-bot@chromium.org>2021-11-05 04:22:34 +0000
commit252457d4b21f46889eebad61d4c0a65331919cec (patch)
tree01856c4d31d710b20e85a74c8d7b5836e35c3b98 /chip/host/usb_pd_phy.c
parent08f5a1e6fc2c9467230444ac9b582dcf4d9f0068 (diff)
downloadchrome-ec-stabilize-14388.62.B-ish.tar.gz
In the interest of making long-term branch maintenance incur as little technical debt on us as possible, we should not maintain any files on the branch we are not actually using. This has the added effect of making it extremely clear when merging CLs from the main branch when changes have the possibility to affect us. The follow-on CL adds a convenience script to actually pull updates from the main branch and generate a CL for the update. BUG=b:204206272 BRANCH=ish TEST=make BOARD=arcada_ish && make BOARD=drallion_ish Signed-off-by: Jack Rosenthal <jrosenth@chromium.org> Change-Id: I17e4694c38219b5a0823e0a3e55a28d1348f4b18 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3262038 Reviewed-by: Jett Rink <jettrink@chromium.org> Reviewed-by: Tom Hughes <tomhughes@chromium.org>
Diffstat (limited to 'chip/host/usb_pd_phy.c')
-rw-r--r--chip/host/usb_pd_phy.c370
1 files changed, 0 insertions, 370 deletions
diff --git a/chip/host/usb_pd_phy.c b/chip/host/usb_pd_phy.c
deleted file mode 100644
index ba81b986ad..0000000000
--- a/chip/host/usb_pd_phy.c
+++ /dev/null
@@ -1,370 +0,0 @@
-/* Copyright 2014 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 "common.h"
-#include "console.h"
-#include "crc.h"
-#include "task.h"
-#include "usb_pd.h"
-#include "usb_pd_config.h"
-#include "util.h"
-
-#define PREAMBLE_OFFSET 60 /* Any number should do */
-
-/*
- * Maximum size of a Power Delivery packet (in bits on the wire) :
- * 16-bit header + 0..7 32-bit data objects (+ 4b5b encoding)
- * 64-bit preamble + SOP (4x 5b) + message in 4b5b + 32-bit CRC + EOP (1x 5b)
- * = 64 + 4*5 + 16 * 5/4 + 7 * 32 * 5/4 + 32 * 5/4 + 5
- */
-#define PD_BIT_LEN 429
-
-static struct pd_physical {
- int hw_init_done;
-
- uint8_t bits[PD_BIT_LEN];
- int total;
- int has_preamble;
- int rx_started;
- int rx_monitoring;
-
- int preamble_written;
- int has_msg;
- int last_edge_written;
- uint8_t out_msg[PD_BIT_LEN / 5];
- int verified_idx;
-} pd_phy[CONFIG_USB_PD_PORT_MAX_COUNT];
-
-static const uint16_t enc4b5b[] = {
- 0x1E, 0x09, 0x14, 0x15, 0x0A, 0x0B, 0x0E, 0x0F, 0x12, 0x13, 0x16,
- 0x17, 0x1A, 0x1B, 0x1C, 0x1D};
-
-/* Test utilities */
-static void pd_test_reset_phy(int port)
-{
- int i;
- int enc_len = PD_BIT_LEN / 5;
-
- for (i = 0; i < PD_BIT_LEN; i++)
- pd_phy[port].bits[i] = 0;
-
- for (i = 0; i < enc_len; i++)
- pd_phy[port].out_msg[i] = 0;
-
- pd_phy[port].total = 0;
- pd_phy[port].has_preamble = 0;
- pd_phy[port].rx_started = 0;
- pd_phy[port].rx_monitoring = 0;
- pd_phy[port].preamble_written = 0;
- pd_phy[port].has_msg = 0;
- pd_phy[port].last_edge_written = 0;
- pd_phy[port].verified_idx = 0;
-}
-
-void pd_test_rx_set_preamble(int port, int has_preamble)
-{
- pd_phy[port].total = 0;
- pd_phy[port].has_preamble = has_preamble;
-}
-
-void pd_test_rx_msg_append_bits(int port, uint32_t bits, int nb)
-{
- int i;
-
- for (i = 0; i < nb; ++i) {
- pd_phy[port].bits[pd_phy[port].total++] = bits & 1;
- bits >>= 1;
- }
-}
-
-void pd_test_rx_msg_append_kcode(int port, uint8_t kcode)
-{
- pd_test_rx_msg_append_bits(port, kcode, 5);
-}
-
-void pd_test_rx_msg_append_sop(int port)
-{
- pd_test_rx_msg_append_kcode(port, PD_SYNC1);
- pd_test_rx_msg_append_kcode(port, PD_SYNC1);
- pd_test_rx_msg_append_kcode(port, PD_SYNC1);
- pd_test_rx_msg_append_kcode(port, PD_SYNC2);
-}
-
-void pd_test_rx_msg_append_sop_prime(int port)
-{
- pd_test_rx_msg_append_kcode(port, PD_SYNC1);
- pd_test_rx_msg_append_kcode(port, PD_SYNC1);
- pd_test_rx_msg_append_kcode(port, PD_SYNC3);
- pd_test_rx_msg_append_kcode(port, PD_SYNC3);
-}
-
-void pd_test_rx_msg_append_sop_prime_prime(int port)
-{
- pd_test_rx_msg_append_kcode(port, PD_SYNC1);
- pd_test_rx_msg_append_kcode(port, PD_SYNC3);
- pd_test_rx_msg_append_kcode(port, PD_SYNC1);
- pd_test_rx_msg_append_kcode(port, PD_SYNC3);
-}
-
-void pd_test_rx_msg_append_eop(int port)
-{
- pd_test_rx_msg_append_kcode(port, PD_EOP);
-}
-
-void pd_test_rx_msg_append_last_edge(int port)
-{
- /* end with 1, 1, 0 similar to pd_write_last_edge() */
- pd_test_rx_msg_append_bits(port, 3, 6);
-}
-
-void pd_test_rx_msg_append_4b(int port, uint8_t val)
-{
- pd_test_rx_msg_append_bits(port, enc4b5b[val & 0xF], 5);
-}
-
-void pd_test_rx_msg_append_short(int port, uint16_t val)
-{
- pd_test_rx_msg_append_4b(port, (val >> 0) & 0xF);
- pd_test_rx_msg_append_4b(port, (val >> 4) & 0xF);
- pd_test_rx_msg_append_4b(port, (val >> 8) & 0xF);
- pd_test_rx_msg_append_4b(port, (val >> 12) & 0xF);
-}
-
-void pd_test_rx_msg_append_word(int port, uint32_t val)
-{
- pd_test_rx_msg_append_short(port, val & 0xFFFF);
- pd_test_rx_msg_append_short(port, val >> 16);
-}
-
-void pd_simulate_rx(int port)
-{
- if (!pd_phy[port].rx_monitoring)
- return;
-
- pd_phy[port].rx_started = 1;
- pd_rx_disable_monitoring(port);
- pd_rx_event(port);
-}
-
-static int pd_test_tx_msg_verify(int port, uint8_t raw)
-{
- int verified_idx = pd_phy[port].verified_idx++;
- return pd_phy[port].out_msg[verified_idx] == raw;
-}
-
-int pd_test_tx_msg_verify_kcode(int port, uint8_t kcode)
-{
- return pd_test_tx_msg_verify(port, kcode);
-}
-
-int pd_test_tx_msg_verify_sop(int port)
-{
- crc32_init();
- return pd_test_tx_msg_verify_kcode(port, PD_SYNC1) &&
- pd_test_tx_msg_verify_kcode(port, PD_SYNC1) &&
- pd_test_tx_msg_verify_kcode(port, PD_SYNC1) &&
- pd_test_tx_msg_verify_kcode(port, PD_SYNC2);
-}
-
-int pd_test_tx_msg_verify_sop_prime(int port)
-{
- crc32_init();
- return pd_test_tx_msg_verify_kcode(port, PD_SYNC1) &&
- pd_test_tx_msg_verify_kcode(port, PD_SYNC1) &&
- pd_test_tx_msg_verify_kcode(port, PD_SYNC3) &&
- pd_test_tx_msg_verify_kcode(port, PD_SYNC3);
-}
-
-int pd_test_tx_msg_verify_sop_prime_prime(int port)
-{
- crc32_init();
- return pd_test_tx_msg_verify_kcode(port, PD_SYNC1) &&
- pd_test_tx_msg_verify_kcode(port, PD_SYNC3) &&
- pd_test_tx_msg_verify_kcode(port, PD_SYNC1) &&
- pd_test_tx_msg_verify_kcode(port, PD_SYNC3);
-}
-
-int pd_test_tx_msg_verify_eop(int port)
-{
- return pd_test_tx_msg_verify_kcode(port, PD_EOP);
-}
-
-int pd_test_tx_msg_verify_4b5b(int port, uint8_t b4)
-{
- return pd_test_tx_msg_verify(port, enc4b5b[b4]);
-}
-
-int pd_test_tx_msg_verify_short(int port, uint16_t val)
-{
- crc32_hash16(val);
- return pd_test_tx_msg_verify_4b5b(port, (val >> 0) & 0xF) &&
- pd_test_tx_msg_verify_4b5b(port, (val >> 4) & 0xF) &&
- pd_test_tx_msg_verify_4b5b(port, (val >> 8) & 0xF) &&
- pd_test_tx_msg_verify_4b5b(port, (val >> 12) & 0xF);
-}
-
-int pd_test_tx_msg_verify_word(int port, uint32_t val)
-{
- return pd_test_tx_msg_verify_short(port, val & 0xFFFF) &&
- pd_test_tx_msg_verify_short(port, val >> 16);
-}
-
-int pd_test_tx_msg_verify_crc(int port)
-{
- return pd_test_tx_msg_verify_word(port, crc32_result());
-}
-
-
-/* Mock functions */
-
-void pd_init_dequeue(int port)
-{
-}
-
-int pd_dequeue_bits(int port, int off, int len, uint32_t *val)
-{
- int i;
-
- /* Rx must have started to receive message */
- ASSERT(pd_phy[port].rx_started);
-
- if (pd_phy[port].total <= off + len - PREAMBLE_OFFSET)
- return -1;
- *val = 0;
- for (i = 0; i < len; ++i)
- *val |= pd_phy[port].bits[off + i - PREAMBLE_OFFSET] << i;
- return off + len;
-}
-
-int pd_find_preamble(int port)
-{
- return pd_phy[port].has_preamble ? PREAMBLE_OFFSET : -1;
-}
-
-int pd_write_preamble(int port)
-{
- ASSERT(pd_phy[port].preamble_written == 0);
- pd_phy[port].preamble_written = 1;
- ASSERT(pd_phy[port].has_msg == 0);
- return 0;
-}
-
-static uint8_t decode_bmc(uint32_t val10)
-{
- uint8_t ret = 0;
- int i;
-
- for (i = 0; i < 5; ++i)
- if (!!(val10 & (1 << (2 * i))) !=
- !!(val10 & (1 << (2 * i + 1))))
- ret |= BIT(i);
- return ret;
-}
-
-int pd_write_sym(int port, int bit_off, uint32_t val10)
-{
- pd_phy[port].out_msg[bit_off] = decode_bmc(val10);
- pd_phy[port].has_msg = 1;
- return bit_off + 1;
-}
-
-int pd_write_last_edge(int port, int bit_off)
-{
- pd_phy[port].last_edge_written = 1;
- return bit_off;
-}
-
-void pd_dump_packet(int port, const char *msg)
-{
- /* Not implemented */
-}
-
-void pd_tx_set_circular_mode(int port)
-{
- /* Not implemented */
-}
-
-void pd_tx_clear_circular_mode(int port)
-{
- /* Not implemented */
-}
-
-int pd_start_tx(int port, int polarity, int bit_len)
-{
- ASSERT(pd_phy[port].hw_init_done);
- pd_phy[port].has_msg = 0;
- pd_phy[port].preamble_written = 0;
- pd_phy[port].verified_idx = 0;
- pd_phy[port].total = 0;
-
- /*
- * Hand over to test runner. The test runner must wake us after
- * processing the packet.
- */
- task_wake(TASK_ID_TEST_RUNNER);
- task_wait_event(-1);
-
- return bit_len;
-}
-
-void pd_tx_done(int port, int polarity)
-{
- pd_test_reset_phy(port);
-}
-
-void pd_rx_start(int port)
-{
- ASSERT(pd_phy[port].hw_init_done);
-
- task_wake(TASK_ID_TEST_RUNNER);
- task_wait_event(-1);
-
- pd_phy[port].rx_started = 1;
-}
-
-void pd_rx_complete(int port)
-{
- ASSERT(pd_phy[port].hw_init_done);
- pd_test_reset_phy(port);
-}
-
-int pd_rx_started(int port)
-{
- return pd_phy[port].rx_started;
-}
-
-void pd_rx_enable_monitoring(int port)
-{
- ASSERT(pd_phy[port].hw_init_done);
- pd_phy[port].rx_monitoring = 1;
-}
-
-void pd_rx_disable_monitoring(int port)
-{
- /*
- * We disabled RX monitoring in TCPMv1 in set_state when
- * transitioning from suspended to disconnected, but we only
- * reinitialize after we have fully transitioned to disconnected. Don't
- * assert that hw_init_done here since we have "valid" code that
- * requires hw_init_done to be false when a port is suspended.
- */
- pd_phy[port].rx_monitoring = 0;
-}
-
-void pd_hw_release(int port)
-{
- pd_phy[port].hw_init_done = 0;
-}
-
-void pd_hw_init(int port, enum pd_power_role role)
-{
- pd_config_init(port, role);
- pd_phy[port].hw_init_done = 1;
-}
-
-void pd_set_clock(int port, int freq)
-{
- /* Not implemented */
-}