| /* |
| * Copyright (c) 2006-2012 Douglas Gilbert. |
| * 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. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, 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 DAMAGE. |
| * |
| */ |
| |
| #include <unistd.h> |
| #include <fcntl.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <errno.h> |
| #include <sys/ioctl.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include "sg_lib.h" |
| #include "sg_io_linux.h" |
| |
| /* This program performs a ATA PASS-THROUGH (16) SCSI command in order |
| to perform an ATA CHECK POWER MODE command. See http://www.t10.org |
| SAT draft at time of writing: sat-r09.pdf |
| |
| Invocation: sg_sat_chk_power [-v] [-V] <device> |
| |
| */ |
| |
| #define SAT_ATA_PASS_THROUGH16 0x85 |
| #define SAT_ATA_PASS_THROUGH16_LEN 16 |
| #define SAT_ATA_RETURN_DESC 9 /* ATA Return (sense) Descriptor */ |
| #define ASCQ_ATA_PT_INFO_AVAILABLE 0x1d |
| |
| #define ATA_CHECK_POWER_MODE 0xe5 |
| |
| #define EBUFF_SZ 256 |
| |
| static const char * version_str = "1.04 20120319"; |
| |
| |
| #if 0 |
| /* Returns length of decoded fixed format sense for SAT ATA pass-through |
| * command, else returns 0. If returns 0 (expected sense data not found) |
| * then '\0' placed in first byte of bp. */ |
| static int |
| sg_sat_decode_fixed_sense(const unsigned char * sp, int slen, char * bp, |
| int max_blen, int verbose) |
| { |
| int n; |
| |
| if ((NULL == bp) || (NULL == sp) || (max_blen < 1) || (slen < 14)) |
| return 0; |
| bp[0] = '\0'; |
| if ((0x70 != (0x7f & sp[0])) || |
| (SPC_SK_RECOVERED_ERROR != (0xf & sp[2])) || |
| (0 != sp[12]) || (ASCQ_ATA_PT_INFO_AVAILABLE != sp[13])) |
| return 0; |
| n = snprintf(bp, max_blen, "error=0x%x, status=0x%x, device=0x%x, " |
| "sector_count(7:0)=0x%x%c\n", sp[3], sp[4], sp[5], sp[6], |
| ((0x40 & sp[8]) ? '+' : ' ')); |
| if (n >= max_blen) |
| return max_blen - 1; |
| n += snprintf(bp + n, max_blen - n, "extend=%d, log_index=0x%x, " |
| "lba_high,mid,low(7:0)=0x%x,0x%x,0x%x%c\n", |
| (!!(0x80 & sp[8])), (0xf & sp[8]), sp[9], sp[10], sp[11], |
| ((0x20 & sp[8]) ? '+' : ' ')); |
| if (n >= max_blen) |
| return max_blen - 1; |
| if (verbose) |
| n += snprintf(bp + n, max_blen - n, " sector_count_upper_nonzero=" |
| "%d, lba_upper_nonzero=%d\n", !!(0x40 & sp[8]), |
| !!(0x20 & sp[8])); |
| return (n >= max_blen) ? max_blen - 1 : n; |
| } |
| #endif |
| |
| int main(int argc, char * argv[]) |
| { |
| int sg_fd, k; |
| unsigned char aptCmdBlk[SAT_ATA_PASS_THROUGH16_LEN] = |
| {SAT_ATA_PASS_THROUGH16, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0}; |
| sg_io_hdr_t io_hdr; |
| char * file_name = 0; |
| char ebuff[EBUFF_SZ]; |
| unsigned char sense_buffer[64]; |
| int verbose = 0; |
| int extend = 0; |
| int chk_cond = 1; /* set to 1 to read register(s) back */ |
| int protocol = 3; /* non-dat data-in */ |
| int t_dir = 1; /* 0 -> to device, 1 -> from device */ |
| int byte_block = 1; /* 0 -> bytes, 1 -> 512 byte blocks */ |
| int t_length = 0; /* 0 -> no data transferred, 2 -> sector count */ |
| const unsigned char * ucp = NULL; |
| |
| for (k = 1; k < argc; ++k) { |
| if (0 == strcmp(argv[k], "-v")) |
| ++verbose; |
| else if (0 == strcmp(argv[k], "-vv")) |
| verbose += 2; |
| else if (0 == strcmp(argv[k], "-vvv")) |
| verbose += 3; |
| else if (0 == strcmp(argv[k], "-V")) { |
| fprintf(stderr, "version: %s\n", version_str); |
| exit(0); |
| } else if (*argv[k] == '-') { |
| printf("Unrecognized switch: %s\n", argv[k]); |
| file_name = 0; |
| break; |
| } |
| else if (0 == file_name) |
| file_name = argv[k]; |
| else { |
| printf("too many arguments\n"); |
| file_name = 0; |
| break; |
| } |
| } |
| if (0 == file_name) { |
| printf("Usage: 'sg_sat_chk_power [-v] [-V] <device>'\n"); |
| return 1; |
| } |
| |
| if ((sg_fd = open(file_name, O_RDWR)) < 0) { |
| snprintf(ebuff, EBUFF_SZ, |
| "sg_sat_chk_power: error opening file: %s", file_name); |
| perror(ebuff); |
| return 1; |
| } |
| |
| /* Prepare ATA PASS-THROUGH COMMAND (16) command */ |
| aptCmdBlk[14] = ATA_CHECK_POWER_MODE; |
| aptCmdBlk[1] = (protocol << 1) | extend; |
| aptCmdBlk[2] = (chk_cond << 5) | (t_dir << 3) | |
| (byte_block << 2) | t_length; |
| if (verbose) { |
| fprintf(stderr, " ata pass through(16) cdb: "); |
| for (k = 0; k < SAT_ATA_PASS_THROUGH16_LEN; ++k) |
| fprintf(stderr, "%02x ", aptCmdBlk[k]); |
| fprintf(stderr, "\n"); |
| } |
| |
| memset(&io_hdr, 0, sizeof(sg_io_hdr_t)); |
| io_hdr.interface_id = 'S'; |
| io_hdr.cmd_len = sizeof(aptCmdBlk); |
| /* io_hdr.iovec_count = 0; */ /* memset takes care of this */ |
| io_hdr.mx_sb_len = sizeof(sense_buffer); |
| io_hdr.dxfer_direction = SG_DXFER_NONE; |
| io_hdr.dxfer_len = 0; |
| io_hdr.dxferp = NULL; |
| io_hdr.cmdp = aptCmdBlk; |
| io_hdr.sbp = sense_buffer; |
| io_hdr.timeout = 20000; /* 20000 millisecs == 20 seconds */ |
| /* io_hdr.flags = 0; */ /* take defaults: indirect IO, etc */ |
| /* io_hdr.pack_id = 0; */ |
| /* io_hdr.usr_ptr = NULL; */ |
| |
| if (ioctl(sg_fd, SG_IO, &io_hdr) < 0) { |
| perror("sg_sat_chk_power: SG_IO ioctl error"); |
| close(sg_fd); |
| return 1; |
| } |
| |
| /* error processing: N.B. expect check condition, no sense ... !! */ |
| switch (sg_err_category3(&io_hdr)) { |
| case SG_LIB_CAT_CLEAN: |
| break; |
| case SG_LIB_CAT_RECOVERED: /* sat-r09 (latest) uses this sk */ |
| case SG_LIB_CAT_NO_SENSE: /* earlier SAT drafts used this */ |
| /* XXX: Until the spec decides which one to go with. 20060607 */ |
| ucp = sg_scsi_sense_desc_find(sense_buffer, sizeof(sense_buffer), |
| SAT_ATA_RETURN_DESC); |
| if (NULL == ucp) { |
| if (verbose > 1) |
| printf("ATA Return Descriptor expected in sense but not " |
| "found\n"); |
| sg_chk_n_print3("ATA_16 command error", &io_hdr, 1); |
| } else if (verbose) |
| sg_chk_n_print3("ATA Return Descriptor, as expected", |
| &io_hdr, 1); |
| if (ucp && ucp[3]) { |
| if (ucp[3] & 0x4) |
| printf("error in returned FIS: aborted command\n"); |
| else |
| printf("error=0x%x, status=0x%x\n", ucp[3], ucp[13]); |
| } |
| break; |
| default: |
| fprintf(stderr, "unexpected SCSI sense category\n"); |
| ucp = sg_scsi_sense_desc_find(sense_buffer, sizeof(sense_buffer), |
| SAT_ATA_RETURN_DESC); |
| if (NULL == ucp) |
| sg_chk_n_print3("ATA_16 command error", &io_hdr, 1); |
| else if (verbose) |
| sg_chk_n_print3("ATA Return Descriptor, as expected", |
| &io_hdr, 1); |
| if (ucp && ucp[3]) { |
| if (ucp[3] & 0x4) |
| printf("error in returned FIS: aborted command\n"); |
| else |
| printf("error=0x%x, status=0x%x\n", ucp[3], ucp[13]); |
| } |
| break; |
| } |
| |
| if (ucp) { |
| switch (ucp[5]) { /* sector_count (7:0) */ |
| case 0xff: |
| printf("In active mode or idle mode\n"); |
| break; |
| case 0x80: |
| printf("In idle mode\n"); |
| break; |
| case 0x41: |
| printf("In NV power mode and spindle is spun or spinning up\n"); |
| break; |
| case 0x40: |
| printf("In NV power mode and spindle is spun or spinning down\n"); |
| break; |
| case 0x0: |
| printf("In standby mode\n"); |
| break; |
| default: |
| printf("unknown power mode (sector count) value=0x%x\n", ucp[5]); |
| break; |
| } |
| } else |
| fprintf(stderr, "Expecting a ATA Return Descriptor in sense and " |
| "didn't receive it\n"); |
| |
| close(sg_fd); |
| return 0; |
| } |
