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freebsd-skq/sbin/camcontrol/epc.c
Edward Tomasz Napierala 22267215d6 camcontrol(8): remove unnecessary CCB zeroing 
After 3e404b8c53, cam_getccb(3) clears the returned CCB, making
a number of calls to CCB_CLEAR_ALL_EXCEPT_HDR(3) unnecessary.

Reviewed By:	imp
Sponsored by:	NetApp, Inc.
Sponsored by:	Klara, Inc.
Differential Revision:	https://reviews.freebsd.org/D27812
2021-02-25 18:45:21 +00:00

856 lines
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/*-
* Copyright (c) 2016 Spectra Logic Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* Authors: Ken Merry (Spectra Logic Corporation)
*/
/*
* ATA Extended Power Conditions (EPC) support
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/ioctl.h>
#include <sys/stdint.h>
#include <sys/types.h>
#include <sys/endian.h>
#include <sys/sbuf.h>
#include <sys/queue.h>
#include <sys/ata.h>
#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
#include <unistd.h>
#include <string.h>
#include <strings.h>
#include <fcntl.h>
#include <ctype.h>
#include <limits.h>
#include <err.h>
#include <locale.h>
#include <cam/cam.h>
#include <cam/cam_debug.h>
#include <cam/cam_ccb.h>
#include <cam/scsi/scsi_all.h>
#include <cam/scsi/scsi_da.h>
#include <cam/scsi/scsi_pass.h>
#include <cam/scsi/scsi_message.h>
#include <camlib.h>
#include "camcontrol.h"
typedef enum {
EPC_ACTION_NONE = 0x00,
EPC_ACTION_LIST = 0x01,
EPC_ACTION_TIMER_SET = 0x02,
EPC_ACTION_IMMEDIATE = 0x03,
EPC_ACTION_GETMODE = 0x04
} epc_action;
static struct scsi_nv epc_flags[] = {
{ "Supported", ATA_PCL_COND_SUPPORTED },
{ "Saveable", ATA_PCL_COND_SUPPORTED },
{ "Changeable", ATA_PCL_COND_CHANGEABLE },
{ "Default Timer Enabled", ATA_PCL_DEFAULT_TIMER_EN },
{ "Saved Timer Enabled", ATA_PCL_SAVED_TIMER_EN },
{ "Current Timer Enabled", ATA_PCL_CURRENT_TIMER_EN },
{ "Hold Power Condition Not Supported", ATA_PCL_HOLD_PC_NOT_SUP }
};
static struct scsi_nv epc_power_cond_map[] = {
{ "Standby_z", ATA_EPC_STANDBY_Z },
{ "z", ATA_EPC_STANDBY_Z },
{ "Standby_y", ATA_EPC_STANDBY_Y },
{ "y", ATA_EPC_STANDBY_Y },
{ "Idle_a", ATA_EPC_IDLE_A },
{ "a", ATA_EPC_IDLE_A },
{ "Idle_b", ATA_EPC_IDLE_B },
{ "b", ATA_EPC_IDLE_B },
{ "Idle_c", ATA_EPC_IDLE_C },
{ "c", ATA_EPC_IDLE_C }
};
static struct scsi_nv epc_rst_val[] = {
{ "default", ATA_SF_EPC_RST_DFLT },
{ "saved", 0}
};
static struct scsi_nv epc_ps_map[] = {
{ "unknown", ATA_SF_EPC_SRC_UNKNOWN },
{ "battery", ATA_SF_EPC_SRC_BAT },
{ "notbattery", ATA_SF_EPC_SRC_NOT_BAT }
};
/*
* These aren't subcommands of the EPC SET FEATURES subcommand, but rather
* commands that determine the current capabilities and status of the drive.
* The EPC subcommands are limited to 4 bits, so we won't collide with any
* future values.
*/
#define CCTL_EPC_GET_STATUS 0x8001
#define CCTL_EPC_LIST 0x8002
static struct scsi_nv epc_cmd_map[] = {
{ "restore", ATA_SF_EPC_RESTORE },
{ "goto", ATA_SF_EPC_GOTO },
{ "timer", ATA_SF_EPC_SET_TIMER },
{ "state", ATA_SF_EPC_SET_STATE },
{ "enable", ATA_SF_EPC_ENABLE },
{ "disable", ATA_SF_EPC_DISABLE },
{ "source", ATA_SF_EPC_SET_SOURCE },
{ "status", CCTL_EPC_GET_STATUS },
{ "list", CCTL_EPC_LIST }
};
static int epc_list(struct cam_device *device, camcontrol_devtype devtype,
union ccb *ccb, int retry_count, int timeout);
static void epc_print_pcl_desc(struct ata_power_cond_log_desc *desc,
const char *prefix);
static int epc_getmode(struct cam_device *device, camcontrol_devtype devtype,
union ccb *ccb, int retry_count, int timeout,
int power_only);
static int epc_set_features(struct cam_device *device,
camcontrol_devtype devtype, union ccb *ccb,
int retry_count, int timeout, int action,
int power_cond, int timer, int enable, int save,
int delayed_entry, int hold, int power_src,
int restore_src);
static void
epc_print_pcl_desc(struct ata_power_cond_log_desc *desc, const char *prefix)
{
int first;
unsigned int i, num_printed, max_chars;
first = 1;
max_chars = 75;
num_printed = printf("%sFlags: ", prefix);
for (i = 0; i < (sizeof(epc_flags) / sizeof(epc_flags[0])); i++) {
if ((desc->flags & epc_flags[i].value) == 0)
continue;
if (first == 0) {
num_printed += printf(", ");
}
if ((num_printed + strlen(epc_flags[i].name)) > max_chars) {
printf("\n");
num_printed = printf("%s ", prefix);
}
num_printed += printf("%s", epc_flags[i].name);
first = 0;
}
if (first != 0)
printf("None");
printf("\n");
printf("%sDefault timer setting: %.1f sec\n", prefix,
(double)(le32dec(desc->default_timer) / 10));
printf("%sSaved timer setting: %.1f sec\n", prefix,
(double)(le32dec(desc->saved_timer) / 10));
printf("%sCurrent timer setting: %.1f sec\n", prefix,
(double)(le32dec(desc->current_timer) / 10));
printf("%sNominal time to active: %.1f sec\n", prefix,
(double)(le32dec(desc->nom_time_to_active) / 10));
printf("%sMinimum timer: %.1f sec\n", prefix,
(double)(le32dec(desc->min_timer) / 10));
printf("%sMaximum timer: %.1f sec\n", prefix,
(double)(le32dec(desc->max_timer) / 10));
printf("%sNumber of transitions to power condition: %u\n", prefix,
le32dec(desc->num_transitions_to_pc));
printf("%sHours in power condition: %u\n", prefix,
le32dec(desc->hours_in_pc));
}
static int
epc_list(struct cam_device *device, camcontrol_devtype devtype, union ccb *ccb,
int retry_count, int timeout)
{
struct ata_power_cond_log_idle *idle_log;
struct ata_power_cond_log_standby *standby_log;
uint8_t log_buf[sizeof(*idle_log) + sizeof(*standby_log)];
uint16_t log_addr = ATA_POWER_COND_LOG;
uint16_t page_number = ATA_PCL_IDLE;
uint64_t lba;
int error = 0;
lba = (((uint64_t)page_number & 0xff00) << 32) |
((page_number & 0x00ff) << 8) |
(log_addr & 0xff);
error = build_ata_cmd(ccb,
/*retry_count*/ retry_count,
/*flags*/ CAM_DIR_IN | CAM_DEV_QFRZDIS,
/*tag_action*/ MSG_SIMPLE_Q_TAG,
/*protocol*/ AP_PROTO_DMA | AP_EXTEND,
/*ata_flags*/ AP_FLAG_BYT_BLOK_BLOCKS |
AP_FLAG_TLEN_SECT_CNT |
AP_FLAG_TDIR_FROM_DEV,
/*features*/ 0,
/*sector_count*/ 2,
/*lba*/ lba,
/*command*/ ATA_READ_LOG_DMA_EXT,
/*auxiliary*/ 0,
/*data_ptr*/ log_buf,
/*dxfer_len*/ sizeof(log_buf),
/*cdb_storage*/ NULL,
/*cdb_storage_len*/ 0,
/*sense_len*/ SSD_FULL_SIZE,
/*timeout*/ timeout ? timeout : 60000,
/*is48bit*/ 1,
/*devtype*/ devtype);
if (error != 0) {
warnx("%s: build_ata_cmd() failed, likely programmer error",
__func__);
goto bailout;
}
if (retry_count > 0)
ccb->ccb_h.flags |= CAM_PASS_ERR_RECOVER;
error = cam_send_ccb(device, ccb);
if (error != 0) {
warn("error sending ATA READ LOG EXT CCB");
error = 1;
goto bailout;
}
if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
cam_error_print(device, ccb, CAM_ESF_ALL, CAM_EPF_ALL,stderr);
error = 1;
goto bailout;
}
idle_log = (struct ata_power_cond_log_idle *)log_buf;
standby_log =
(struct ata_power_cond_log_standby *)&log_buf[sizeof(*idle_log)];
printf("ATA Power Conditions Log:\n");
printf(" Idle power conditions page:\n");
printf(" Idle A condition:\n");
epc_print_pcl_desc(&idle_log->idle_a_desc, " ");
printf(" Idle B condition:\n");
epc_print_pcl_desc(&idle_log->idle_b_desc, " ");
printf(" Idle C condition:\n");
epc_print_pcl_desc(&idle_log->idle_c_desc, " ");
printf(" Standby power conditions page:\n");
printf(" Standby Y condition:\n");
epc_print_pcl_desc(&standby_log->standby_y_desc, " ");
printf(" Standby Z condition:\n");
epc_print_pcl_desc(&standby_log->standby_z_desc, " ");
bailout:
return (error);
}
static int
epc_getmode(struct cam_device *device, camcontrol_devtype devtype,
union ccb *ccb, int retry_count, int timeout, int power_only)
{
struct ata_params *ident = NULL;
struct ata_identify_log_sup_cap sup_cap;
const char *mode_name = NULL;
uint8_t error = 0, ata_device = 0, status = 0;
uint16_t count = 0;
uint64_t lba = 0;
uint32_t page_number, log_address;
uint64_t caps = 0;
int avail_bytes = 0;
int res_available = 0;
int retval;
retval = 0;
if (power_only != 0)
goto check_power_mode;
/*
* Get standard ATA Identify data.
*/
retval = ata_do_identify(device, retry_count, timeout, ccb, &ident);
if (retval != 0) {
warnx("Couldn't get identify data");
goto bailout;
}
/*
* Get the ATA Identify Data Log (0x30),
* Supported Capabilities Page (0x03).
*/
log_address = ATA_IDENTIFY_DATA_LOG;
page_number = ATA_IDL_SUP_CAP;
lba = (((uint64_t)page_number & 0xff00) << 32) |
((page_number & 0x00ff) << 8) |
(log_address & 0xff);
bzero(&sup_cap, sizeof(sup_cap));
/*
* XXX KDM check the supported protocol.
*/
retval = build_ata_cmd(ccb,
/*retry_count*/ retry_count,
/*flags*/ CAM_DIR_IN | CAM_DEV_QFRZDIS,
/*tag_action*/ MSG_SIMPLE_Q_TAG,
/*protocol*/ AP_PROTO_DMA |
AP_EXTEND,
/*ata_flags*/ AP_FLAG_BYT_BLOK_BLOCKS |
AP_FLAG_TLEN_SECT_CNT |
AP_FLAG_TDIR_FROM_DEV,
/*features*/ 0,
/*sector_count*/ 1,
/*lba*/ lba,
/*command*/ ATA_READ_LOG_DMA_EXT,
/*auxiliary*/ 0,
/*data_ptr*/ (uint8_t *)&sup_cap,
/*dxfer_len*/ sizeof(sup_cap),
/*cdb_storage*/ NULL,
/*cdb_storage_len*/ 0,
/*sense_len*/ SSD_FULL_SIZE,
/*timeout*/ timeout ? timeout : 60000,
/*is48bit*/ 1,
/*devtype*/ devtype);
if (retval != 0) {
warnx("%s: build_ata_cmd() failed, likely a programmer error",
__func__);
goto bailout;
}
if (retry_count > 0)
ccb->ccb_h.flags |= CAM_PASS_ERR_RECOVER;
retval = cam_send_ccb(device, ccb);
if (retval != 0) {
warn("error sending ATA READ LOG CCB");
retval = 1;
goto bailout;
}
if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
cam_error_print(device, ccb, CAM_ESF_ALL, CAM_EPF_ALL,stderr);
retval = 1;
goto bailout;
}
if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
avail_bytes = ccb->csio.dxfer_len - ccb->csio.resid;
} else {
avail_bytes = ccb->ataio.dxfer_len - ccb->ataio.resid;
}
if (avail_bytes < (int)sizeof(sup_cap)) {
warnx("Couldn't get enough of the ATA Supported "
"Capabilities log, %d bytes returned", avail_bytes);
retval = 1;
goto bailout;
}
caps = le64dec(sup_cap.sup_cap);
if ((caps & ATA_SUP_CAP_VALID) == 0) {
warnx("Supported capabilities bits are not valid");
retval = 1;
goto bailout;
}
printf("APM: %sSupported, %sEnabled\n",
(ident->support.command2 & ATA_SUPPORT_APM) ? "" : "NOT ",
(ident->enabled.command2 & ATA_SUPPORT_APM) ? "" : "NOT ");
printf("EPC: %sSupported, %sEnabled\n",
(ident->support2 & ATA_SUPPORT_EPC) ? "" : "NOT ",
(ident->enabled2 & ATA_ENABLED_EPC) ? "" : "NOT ");
printf("Low Power Standby %sSupported\n",
(caps & ATA_SC_LP_STANDBY_SUP) ? "" : "NOT ");
printf("Set EPC Power Source %sSupported\n",
(caps & ATA_SC_SET_EPC_PS_SUP) ? "" : "NOT ");
check_power_mode:
retval = build_ata_cmd(ccb,
/*retry_count*/ retry_count,
/*flags*/ CAM_DIR_NONE | CAM_DEV_QFRZDIS,
/*tag_action*/ MSG_SIMPLE_Q_TAG,
/*protocol*/ AP_PROTO_NON_DATA |
AP_EXTEND,
/*ata_flags*/ AP_FLAG_BYT_BLOK_BLOCKS |
AP_FLAG_TLEN_NO_DATA |
AP_FLAG_CHK_COND,
/*features*/ ATA_SF_EPC,
/*sector_count*/ 0,
/*lba*/ 0,
/*command*/ ATA_CHECK_POWER_MODE,
/*auxiliary*/ 0,
/*data_ptr*/ NULL,
/*dxfer_len*/ 0,
/*cdb_storage*/ NULL,
/*cdb_storage_len*/ 0,
/*sense_len*/ SSD_FULL_SIZE,
/*timeout*/ timeout ? timeout : 60000,
/*is48bit*/ 0,
/*devtype*/ devtype);
if (retval != 0) {
warnx("%s: build_ata_cmd() failed, likely a programmer error",
__func__);
goto bailout;
}
if (retry_count > 0)
ccb->ccb_h.flags |= CAM_PASS_ERR_RECOVER;
retval = cam_send_ccb(device, ccb);
if (retval != 0) {
warn("error sending ATA CHECK POWER MODE CCB");
retval = 1;
goto bailout;
}
/*
* Check to see whether we got the requested ATA result if this
* is an SCSI ATA PASS-THROUGH command.
*/
if (((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR)
&& (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND)) {
int error_code, sense_key, asc, ascq;
retval = scsi_extract_sense_ccb(ccb, &error_code,
&sense_key, &asc, &ascq);
if (retval == 0) {
cam_error_print(device, ccb, CAM_ESF_ALL, CAM_EPF_ALL,
stderr);
retval = 1;
goto bailout;
}
if ((sense_key == SSD_KEY_RECOVERED_ERROR)
&& (asc == 0x00)
&& (ascq == 0x1d)) {
res_available = 1;
}
}
if (((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP)
&& (res_available == 0)) {
cam_error_print(device, ccb, CAM_ESF_ALL, CAM_EPF_ALL,stderr);
retval = 1;
goto bailout;
}
retval = get_ata_status(device, ccb, &error, &count, &lba, &ata_device,
&status);
if (retval != 0) {
warnx("Unable to get ATA CHECK POWER MODE result");
retval = 1;
goto bailout;
}
mode_name = scsi_nv_to_str(epc_power_cond_map,
sizeof(epc_power_cond_map) / sizeof(epc_power_cond_map[0]), count);
printf("Current power state: ");
/* Note: ident can be null in power_only mode */
if ((ident == NULL)
|| (ident->enabled2 & ATA_ENABLED_EPC)) {
if (mode_name != NULL)
printf("%s", mode_name);
else if (count == 0xff) {
printf("PM0:Active or PM1:Idle");
}
} else {
switch (count) {
case 0x00:
printf("PM2:Standby");
break;
case 0x80:
printf("PM1:Idle");
break;
case 0xff:
printf("PM0:Active or PM1:Idle");
break;
}
}
printf("(0x%02x)\n", count);
if (power_only != 0)
goto bailout;
if (caps & ATA_SC_LP_STANDBY_SUP) {
uint32_t wait_mode;
wait_mode = (lba >> 20) & 0xff;
if (wait_mode == 0xff) {
printf("Device not waiting to enter lower power "
"condition");
} else {
mode_name = scsi_nv_to_str(epc_power_cond_map,
sizeof(epc_power_cond_map) /
sizeof(epc_power_cond_map[0]), wait_mode);
printf("Device waiting to enter mode %s (0x%02x)\n",
(mode_name != NULL) ? mode_name : "Unknown",
wait_mode);
}
printf("Device is %sheld in the current power condition\n",
(lba & 0x80000) ? "" : "NOT ");
}
bailout:
return (retval);
}
static int
epc_set_features(struct cam_device *device, camcontrol_devtype devtype,
union ccb *ccb, int retry_count, int timeout, int action,
int power_cond, int timer, int enable, int save,
int delayed_entry, int hold, int power_src, int restore_src)
{
uint64_t lba;
uint16_t count = 0;
int error;
error = 0;
lba = action;
switch (action) {
case ATA_SF_EPC_SET_TIMER:
lba |= ((timer << ATA_SF_EPC_TIMER_SHIFT) &
ATA_SF_EPC_TIMER_MASK);
/* FALLTHROUGH */
case ATA_SF_EPC_SET_STATE:
lba |= (enable ? ATA_SF_EPC_TIMER_EN : 0) |
(save ? ATA_SF_EPC_TIMER_SAVE : 0);
count = power_cond;
break;
case ATA_SF_EPC_GOTO:
count = power_cond;
lba |= (delayed_entry ? ATA_SF_EPC_GOTO_DELAY : 0) |
(hold ? ATA_SF_EPC_GOTO_HOLD : 0);
break;
case ATA_SF_EPC_RESTORE:
lba |= restore_src |
(save ? ATA_SF_EPC_RST_SAVE : 0);
break;
case ATA_SF_EPC_ENABLE:
case ATA_SF_EPC_DISABLE:
break;
case ATA_SF_EPC_SET_SOURCE:
count = power_src;
break;
}
error = build_ata_cmd(ccb,
/*retry_count*/ retry_count,
/*flags*/ CAM_DIR_NONE | CAM_DEV_QFRZDIS,
/*tag_action*/ MSG_SIMPLE_Q_TAG,
/*protocol*/ AP_PROTO_NON_DATA | AP_EXTEND,
/*ata_flags*/ AP_FLAG_BYT_BLOK_BLOCKS |
AP_FLAG_TLEN_NO_DATA |
AP_FLAG_TDIR_FROM_DEV,
/*features*/ ATA_SF_EPC,
/*sector_count*/ count,
/*lba*/ lba,
/*command*/ ATA_SETFEATURES,
/*auxiliary*/ 0,
/*data_ptr*/ NULL,
/*dxfer_len*/ 0,
/*cdb_storage*/ NULL,
/*cdb_storage_len*/ 0,
/*sense_len*/ SSD_FULL_SIZE,
/*timeout*/ timeout ? timeout : 60000,
/*is48bit*/ 1,
/*devtype*/ devtype);
if (error != 0) {
warnx("%s: build_ata_cmd() failed, likely a programmer error",
__func__);
goto bailout;
}
if (retry_count > 0)
ccb->ccb_h.flags |= CAM_PASS_ERR_RECOVER;
error = cam_send_ccb(device, ccb);
if (error != 0) {
warn("error sending ATA SET FEATURES CCB");
error = 1;
goto bailout;
}
if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
cam_error_print(device, ccb, CAM_ESF_ALL, CAM_EPF_ALL,stderr);
error = 1;
goto bailout;
}
bailout:
return (error);
}
int
epc(struct cam_device *device, int argc, char **argv, char *combinedopt,
int retry_count, int timeout, int verbosemode __unused)
{
union ccb *ccb = NULL;
int error = 0;
int c;
int action = -1;
camcontrol_devtype devtype;
double timer_val = -1;
int timer_tenths = 0, power_cond = -1;
int delayed_entry = 0, hold = 0;
int enable = -1, save = 0;
int restore_src = -1;
int power_src = -1;
int power_only = 0;
ccb = cam_getccb(device);
if (ccb == NULL) {
warnx("%s: error allocating CCB", __func__);
error = 1;
goto bailout;
}
while ((c = getopt(argc, argv, combinedopt)) != -1) {
switch (c) {
case 'c': {
scsi_nv_status status;
int entry_num;
status = scsi_get_nv(epc_cmd_map,
(sizeof(epc_cmd_map) / sizeof(epc_cmd_map[0])),
optarg, &entry_num, SCSI_NV_FLAG_IG_CASE);
if (status == SCSI_NV_FOUND)
action = epc_cmd_map[entry_num].value;
else {
warnx("%s: %s: %s option %s", __func__,
(status == SCSI_NV_AMBIGUOUS) ?
"ambiguous" : "invalid", "epc command",
optarg);
error = 1;
goto bailout;
}
break;
}
case 'd':
enable = 0;
break;
case 'D':
delayed_entry = 1;
break;
case 'e':
enable = 1;
break;
case 'H':
hold = 1;
break;
case 'p': {
scsi_nv_status status;
int entry_num;
status = scsi_get_nv(epc_power_cond_map,
(sizeof(epc_power_cond_map) /
sizeof(epc_power_cond_map[0])), optarg,
&entry_num, SCSI_NV_FLAG_IG_CASE);
if (status == SCSI_NV_FOUND)
power_cond =epc_power_cond_map[entry_num].value;
else {
warnx("%s: %s: %s option %s", __func__,
(status == SCSI_NV_AMBIGUOUS) ?
"ambiguous" : "invalid", "power condition",
optarg);
error = 1;
goto bailout;
}
break;
}
case 'P':
power_only = 1;
break;
case 'r': {
scsi_nv_status status;
int entry_num;
status = scsi_get_nv(epc_rst_val,
(sizeof(epc_rst_val) /
sizeof(epc_rst_val[0])), optarg,
&entry_num, SCSI_NV_FLAG_IG_CASE);
if (status == SCSI_NV_FOUND)
restore_src = epc_rst_val[entry_num].value;
else {
warnx("%s: %s: %s option %s", __func__,
(status == SCSI_NV_AMBIGUOUS) ?
"ambiguous" : "invalid",
"restore value source", optarg);
error = 1;
goto bailout;
}
break;
}
case 's':
save = 1;
break;
case 'S': {
scsi_nv_status status;
int entry_num;
status = scsi_get_nv(epc_ps_map,
(sizeof(epc_ps_map) / sizeof(epc_ps_map[0])),
optarg, &entry_num, SCSI_NV_FLAG_IG_CASE);
if (status == SCSI_NV_FOUND)
power_src = epc_ps_map[entry_num].value;
else {
warnx("%s: %s: %s option %s", __func__,
(status == SCSI_NV_AMBIGUOUS) ?
"ambiguous" : "invalid", "power source",
optarg);
error = 1;
goto bailout;
}
break;
}
case 'T': {
char *endptr;
timer_val = strtod(optarg, &endptr);
if (timer_val < 0) {
warnx("Invalid timer value %f", timer_val);
error = 1;
goto bailout;
} else if (*endptr != '\0') {
warnx("Invalid timer value %s", optarg);
error = 1;
goto bailout;
}
timer_tenths = timer_val * 10;
break;
}
default:
break;
}
}
if (action == -1) {
warnx("Must specify an action");
error = 1;
goto bailout;
}
error = get_device_type(device, retry_count, timeout,
/*printerrors*/ 1, &devtype);
if (error != 0)
errx(1, "Unable to determine device type");
switch (devtype) {
case CC_DT_ATA:
case CC_DT_SATL:
break;
default:
warnx("The epc subcommand only works with ATA protocol "
"devices");
error = 1;
goto bailout;
break; /*NOTREACHED*/
}
switch (action) {
case ATA_SF_EPC_SET_TIMER:
if (timer_val == -1) {
warnx("Must specify a timer value (-T time)");
error = 1;
}
/* FALLTHROUGH */
case ATA_SF_EPC_SET_STATE:
if (enable == -1) {
warnx("Must specify enable (-e) or disable (-d)");
error = 1;
}
/* FALLTHROUGH */
case ATA_SF_EPC_GOTO:
if (power_cond == -1) {
warnx("Must specify a power condition with -p");
error = 1;
}
if (error != 0)
goto bailout;
break;
case ATA_SF_EPC_SET_SOURCE:
if (power_src == -1) {
warnx("Must specify a power source (-S battery or "
"-S notbattery) value");
error = 1;
goto bailout;
}
break;
case ATA_SF_EPC_RESTORE:
if (restore_src == -1) {
warnx("Must specify a source for restored value, "
"-r default or -r saved");
error = 1;
goto bailout;
}
break;
case ATA_SF_EPC_ENABLE:
case ATA_SF_EPC_DISABLE:
case CCTL_EPC_GET_STATUS:
case CCTL_EPC_LIST:
default:
break;
}
switch (action) {
case CCTL_EPC_GET_STATUS:
error = epc_getmode(device, devtype, ccb, retry_count, timeout,
power_only);
break;
case CCTL_EPC_LIST:
error = epc_list(device, devtype, ccb, retry_count, timeout);
break;
case ATA_SF_EPC_RESTORE:
case ATA_SF_EPC_GOTO:
case ATA_SF_EPC_SET_TIMER:
case ATA_SF_EPC_SET_STATE:
case ATA_SF_EPC_ENABLE:
case ATA_SF_EPC_DISABLE:
case ATA_SF_EPC_SET_SOURCE:
error = epc_set_features(device, devtype, ccb, retry_count,
timeout, action, power_cond, timer_tenths, enable, save,
delayed_entry, hold, power_src, restore_src);
break;
default:
warnx("Not implemented yet");
error = 1;
goto bailout;
break;
}
bailout:
if (ccb != NULL)
cam_freeccb(ccb);
return (error);
}
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