coil: remove host_command_master

This code uses coil terms we're removing, but we don't use it in
platform/cr50. Remove the code instead of replacing the terms.

BUG=b:175244613
TEST=make buildall -j

Change-Id: Ic2ffb06851b199dcbf33b27fc9b8316b21c9ae7c
Signed-off-by: Mary Ruthven <mruthven@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2613444
Reviewed-by: Namyoon Woo <namyoon@chromium.org>

2 files changed, 0 insertions, 231 deletions

diff --git a/common/build.mk b/common/build.mk
index 324ff35e1a..0d862cb983 100644
--- a/common/build.mk
+++ b/common/build.mk
@@ -72,7 +72,6 @@ common-$(CONFIG_FMAP)+=fmap.o
 common-$(CONFIG_GESTURE_SW_DETECTION)+=gesture.o
 common-$(CONFIG_HOSTCMD_EVENTS)+=host_event_commands.o
 common-$(CONFIG_HOSTCMD_GET_UPTIME_INFO)+=uptime.o
-common-$(CONFIG_HOSTCMD_PD)+=host_command_master.o
 common-$(CONFIG_HOSTCMD_RTC)+=rtc.o
 common-$(CONFIG_I2C_DEBUG)+=i2c_trace.o
 common-$(CONFIG_I2C_MASTER)+=i2c_master.o
diff --git a/common/host_command_master.c b/common/host_command_master.c
deleted file mode 100644
index 5f707eac1a..0000000000
--- a/common/host_command_master.c
+++ /dev/null
@@ -1,230 +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.
- */
-
-/* Host command master module for Chrome EC */
-
-#include "common.h"
-#include "console.h"
-#include "host_command.h"
-#include "i2c.h"
-#include "task.h"
-#include "timer.h"
-#include "usb_pd.h"
-#include "util.h"
-
-/* Console output macros */
-#define CPUTS(outstr) cputs(CC_HOSTCMD, outstr)
-#define CPRINTS(format, args...) cprints(CC_HOSTCMD, format, ## args)
-#define CPRINTF(format, args...) cprintf(CC_HOSTCMD, format, ## args)
-
-/* Number of attempts for each PD host command */
-#define PD_HOST_COMMAND_ATTEMPTS 3
-
-static struct mutex pd_mutex;
-
-/**
- * Non-task-safe internal version of pd_host_command().
- *
- * Do not call this version directly!  Use pd_host_command().
- */
-static int pd_host_command_internal(int command, int version,
-				    const void *outdata, int outsize,
-				    void *indata, int insize)
-{
-	int ret, i;
-	int resp_len;
-	struct ec_host_request rq;
-	struct ec_host_response rs;
-	static uint8_t req_buf[EC_LPC_HOST_PACKET_SIZE];
-	static uint8_t resp_buf[EC_LPC_HOST_PACKET_SIZE];
-	uint8_t sum = 0;
-	const uint8_t *c;
-	uint8_t *d;
-
-	/* Fail if output size is too big */
-	if (outsize + sizeof(rq) > EC_LPC_HOST_PACKET_SIZE)
-		return -EC_RES_REQUEST_TRUNCATED;
-
-	/* Fill in request packet */
-	rq.struct_version = EC_HOST_REQUEST_VERSION;
-	rq.checksum = 0;
-	rq.command = command;
-	rq.command_version = version;
-	rq.reserved = 0;
-	rq.data_len = outsize;
-
-	/* Copy data and start checksum */
-	for (i = 0, c = (const uint8_t *)outdata; i < outsize; i++, c++) {
-		req_buf[sizeof(rq) + 1 + i] = *c;
-		sum += *c;
-	}
-
-	/* Finish checksum */
-	for (i = 0, c = (const uint8_t *)&rq; i < sizeof(rq); i++, c++)
-		sum += *c;
-
-	/* Write checksum field so the entire packet sums to 0 */
-	rq.checksum = (uint8_t)(-sum);
-
-	/* Copy header */
-	for (i = 0, c = (const uint8_t *)&rq; i < sizeof(rq); i++, c++)
-		req_buf[1 + i] = *c;
-
-	/* Set command to use protocol v3 */
-	req_buf[0] = EC_COMMAND_PROTOCOL_3;
-
-	/*
-	 * Transmit all data and receive 2 bytes for return value and response
-	 * length.
-	 */
-	i2c_lock(I2C_PORT_PD_MCU, 1);
-	i2c_set_timeout(I2C_PORT_PD_MCU, PD_HOST_COMMAND_TIMEOUT_US);
-	ret = i2c_xfer_unlocked(I2C_PORT_PD_MCU,
-				CONFIG_USB_PD_I2C_SLAVE_ADDR_FLAGS,
-				&req_buf[0], outsize + sizeof(rq) + 1,
-				&resp_buf[0], 2, I2C_XFER_START);
-	i2c_set_timeout(I2C_PORT_PD_MCU, 0);
-	if (ret) {
-		i2c_lock(I2C_PORT_PD_MCU, 0);
-		CPRINTS("i2c transaction 1 failed: %d", ret);
-		return -EC_RES_BUS_ERROR;
-	}
-
-	resp_len = resp_buf[1];
-
-	if (resp_len > (insize + sizeof(rs))) {
-		/* Do a dummy read to generate stop condition */
-		i2c_xfer_unlocked(I2C_PORT_PD_MCU,
-				  CONFIG_USB_PD_I2C_SLAVE_ADDR_FLAGS,
-				  0, 0, &resp_buf[2], 1, I2C_XFER_STOP);
-		i2c_lock(I2C_PORT_PD_MCU, 0);
-		CPRINTS("response size is too large %d > %d",
-			resp_len, insize + sizeof(rs));
-		return -EC_RES_RESPONSE_TOO_BIG;
-	}
-
-	/* Receive remaining data */
-	ret = i2c_xfer_unlocked(I2C_PORT_PD_MCU,
-				CONFIG_USB_PD_I2C_SLAVE_ADDR_FLAGS,
-				0, 0,
-				&resp_buf[2], resp_len, I2C_XFER_STOP);
-	i2c_lock(I2C_PORT_PD_MCU, 0);
-	if (ret) {
-		CPRINTS("i2c transaction 2 failed: %d", ret);
-		return -EC_RES_BUS_ERROR;
-	}
-
-	/* Check for host command error code */
-	ret = resp_buf[0];
-	if (ret) {
-		CPRINTS("command 0x%02x returned error %d", command, ret);
-		return -ret;
-	}
-
-	/* Read back response header and start checksum */
-	sum = 0;
-	for (i = 0, d = (uint8_t *)&rs; i < sizeof(rs); i++, d++) {
-		*d = resp_buf[i + 2];
-		sum += *d;
-	}
-
-	if (rs.struct_version != EC_HOST_RESPONSE_VERSION) {
-		CPRINTS("PD response version mismatch");
-		return -EC_RES_INVALID_RESPONSE;
-	}
-
-	if (rs.reserved) {
-		CPRINTS("PD response reserved != 0");
-		return -EC_RES_INVALID_RESPONSE;
-	}
-
-	if (rs.data_len > insize) {
-		CPRINTS("PD returned too much data");
-		return -EC_RES_RESPONSE_TOO_BIG;
-	}
-
-	/* Read back data and update checksum */
-	resp_len -= sizeof(rs);
-	for (i = 0, d = (uint8_t *)indata; i < resp_len; i++, d++) {
-		*d = resp_buf[sizeof(rs) + i + 2];
-		sum += *d;
-	}
-
-
-	if ((uint8_t)sum) {
-		CPRINTS("command 0x%02x bad checksum returned: %d",
-			command, sum);
-		return -EC_RES_INVALID_CHECKSUM;
-	}
-
-	/* Return output buffer size */
-	return resp_len;
-}
-
-int pd_host_command(int command, int version,
-		    const void *outdata, int outsize,
-		    void *indata, int insize)
-{
-	int rv;
-	int tries = 0;
-
-	/* Try multiple times to send host command. */
-	for (tries = 0; tries < PD_HOST_COMMAND_ATTEMPTS; tries++) {
-		/* Acquire mutex */
-		mutex_lock(&pd_mutex);
-		/* Call internal version of host command */
-		rv = pd_host_command_internal(command, version, outdata,
-					      outsize, indata, insize);
-		/* Release mutex */
-		mutex_unlock(&pd_mutex);
-
-		/* If host command error due to i2c bus error, try again. */
-		if (rv != -EC_RES_BUS_ERROR)
-			break;
-		task_wait_event(50*MSEC);
-	}
-
-	return rv;
-}
-
-static int command_pd_mcu(int argc, char **argv)
-{
-	char *e;
-	static char __bss_slow outbuf[128];
-	static char __bss_slow inbuf[128];
-	int command, version;
-	int i, ret, tmp;
-
-	if (argc < 3)
-		return EC_ERROR_PARAM_COUNT;
-
-	command = strtoi(argv[1], &e, 0);
-	if (*e)
-		return EC_ERROR_PARAM1;
-
-	version = strtoi(argv[2], &e, 0);
-	if (*e)
-		return EC_ERROR_PARAM2;
-
-	for (i = 3; i < argc; i++) {
-		tmp = strtoi(argv[i], &e, 0);
-		if (*e)
-			return EC_ERROR_PARAM3;
-		outbuf[i-3] = tmp;
-	}
-
-	ret = pd_host_command(command, version, &outbuf, argc - 3, &inbuf,
-			sizeof(inbuf));
-
-	ccprintf("Host command 0x%02x, returned %d\n", command, ret);
-	for (i = 0; i < ret; i++)
-		ccprintf("0x%02x\n", inbuf[i]);
-
-	return EC_SUCCESS;
-}
-DECLARE_CONSOLE_COMMAND(pdcmd, command_pd_mcu,
-			"cmd ver [params]",
-			"Send PD host command");
-