mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2025-12-29 18:11:05 +00:00
911da8c150
The ioctl return status for CROS_EC_DEV_IOCXCMD is inconsistent across kernel versions: - In 3.8 kernel, on INVALID_VERSION EC result, -EBADMSG is returned - In 3.14 kernel, on INVALID_VERSION EC result, success status is returned In both cases, the INVALID_VERSION result is written to the cros_ec_command.result parameter. The inconsistency here should be fixed with kernel patches. In any case, there is little harm with trying v0 of GET_VERSIONS on any failure of the v1 command. BUG=chrome-os-partner:37668,chromium:466896 TEST=Manual on peppy. Verify 'ectool thermalget 0 0' prints threshold info. BRANCH=None Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org> Change-Id: Ic1eb3f8f2fa95711ec15a5afb740af8f18b88b55 Reviewed-on: https://chromium-review.googlesource.com/260004 Reviewed-by: Bill Richardson <wfrichar@chromium.org> Commit-Queue: Bill Richardson <wfrichar@chromium.org> Trybot-Ready: Bill Richardson <wfrichar@chromium.org> Tested-by: Bill Richardson <wfrichar@chromium.org> Reviewed-by: Randall Spangler <rspangler@chromium.org>
136 lines
2.5 KiB
C
136 lines
2.5 KiB
C
/* Copyright (c) 2013 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 <ctype.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "comm-host.h"
|
|
#include "misc_util.h"
|
|
|
|
int write_file(const char *filename, const char *buf, int size)
|
|
{
|
|
FILE *f;
|
|
int i;
|
|
|
|
/* Write to file */
|
|
f = fopen(filename, "wb");
|
|
if (!f) {
|
|
perror("Error opening output file");
|
|
return -1;
|
|
}
|
|
i = fwrite(buf, 1, size, f);
|
|
fclose(f);
|
|
if (i != size) {
|
|
perror("Error writing to file");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
char *read_file(const char *filename, int *size)
|
|
{
|
|
FILE *f = fopen(filename, "rb");
|
|
char *buf;
|
|
int i;
|
|
|
|
if (!f) {
|
|
perror("Error opening input file");
|
|
return NULL;
|
|
}
|
|
|
|
fseek(f, 0, SEEK_END);
|
|
*size = ftell(f);
|
|
rewind(f);
|
|
if (*size > 0x100000) {
|
|
fprintf(stderr, "File seems unreasonably large\n");
|
|
fclose(f);
|
|
return NULL;
|
|
}
|
|
|
|
buf = (char *)malloc(*size);
|
|
if (!buf) {
|
|
fprintf(stderr, "Unable to allocate buffer.\n");
|
|
fclose(f);
|
|
return NULL;
|
|
}
|
|
|
|
printf("Reading %d bytes from %s...\n", *size, filename);
|
|
i = fread(buf, 1, *size, f);
|
|
fclose(f);
|
|
if (i != *size) {
|
|
perror("Error reading file");
|
|
free(buf);
|
|
return NULL;
|
|
}
|
|
|
|
return buf;
|
|
}
|
|
|
|
int is_string_printable(const char *buf)
|
|
{
|
|
while (*buf) {
|
|
if (!isprint(*buf))
|
|
return 0;
|
|
buf++;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* Get the versions of the command supported by the EC.
|
|
*
|
|
* @param cmd Command
|
|
* @param pmask Destination for version mask; will be set to 0 on
|
|
* error.
|
|
* @return 0 if success, <0 if error
|
|
*/
|
|
int ec_get_cmd_versions(int cmd, uint32_t *pmask)
|
|
{
|
|
struct ec_params_get_cmd_versions_v1 pver_v1;
|
|
struct ec_params_get_cmd_versions pver;
|
|
struct ec_response_get_cmd_versions rver;
|
|
int rv;
|
|
|
|
*pmask = 0;
|
|
|
|
pver_v1.cmd = cmd;
|
|
rv = ec_command(EC_CMD_GET_CMD_VERSIONS, 1, &pver_v1, sizeof(pver_v1),
|
|
&rver, sizeof(rver));
|
|
|
|
if (rv < 0) {
|
|
pver.cmd = cmd;
|
|
rv = ec_command(EC_CMD_GET_CMD_VERSIONS, 0, &pver, sizeof(pver),
|
|
&rver, sizeof(rver));
|
|
}
|
|
|
|
if (rv < 0)
|
|
return rv;
|
|
|
|
*pmask = rver.version_mask;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Return non-zero if the EC supports the command and version
|
|
*
|
|
* @param cmd Command to check
|
|
* @param ver Version to check
|
|
* @return non-zero if command version supported; 0 if not.
|
|
*/
|
|
int ec_cmd_version_supported(int cmd, int ver)
|
|
{
|
|
uint32_t mask = 0;
|
|
|
|
if (ec_get_cmd_versions(cmd, &mask))
|
|
return 0;
|
|
|
|
return (mask & EC_VER_MASK(ver)) ? 1 : 0;
|
|
}
|