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-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 */
-}