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- /*
- * libdi - CD Audio Player Device Interface Library
- *
- * Copyright (C) 1995 Ti Kan
- * E-mail: ti@amb.org
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
- /*
- * IBM AIX version 3.2.x and 4.x support
- *
- * Contributing author: Kurt Brunton
- * E-Mail: kbrunton@ccd.harris.com
- *
- * Contributing author: Tom Crawley
- * E-Mail: tomc@osi.curtin.edu.au
- *
- * This software fragment contains code that interfaces the CD player
- * application to the IBM AIX operating system. The name "IBM" is
- * used here for identification purposes only.
- *
- */
- #ifndef LINT
- static char *_os_aix_c_ident_ = "@(#)os_aix.c 5.6 94/12/28";
- #endif
-
- #include "common.d/appenv.h"
- #include "common.d/util.h"
- #include "libdi.d/libdi.h"
- #include "libdi.d/scsipt.h"
-
- #if defined(_AIX) && defined(DI_SCSIPT) && !defined(DEMO_ONLY)
-
- extern appdata_t app_data;
- extern bool_t scsipt_notrom_error;
- extern FILE *errfp;
-
- STATIC int pthru_fd = -1; /* Passthrough device file desc */
-
-
- /*
- * pthru_send
- * Build SCSI CDB and send command to the device.
- *
- * Args:
- * opcode - SCSI command opcode
- * addr - The "address" portion of the SCSI CDB
- * buf - Pointer to data buffer
- * size - Number of bytes to transfer
- * rsvd - The "reserved" portion of the SCSI CDB
- * length - The "length" portion of the SCSI CDB
- * param - The "param" portion of the SCSI CDB
- * control - The "control" portion of the SCSI CDB
- * rw - Data transfer direction flag (READ_OP or WRITE_OP)
- * prnerr - Whether an error message should be displayed
- * when a command fails
- *
- * Return:
- * TRUE - command completed successfully
- * FALSE - command failed
- */
- bool_t
- pthru_send(
- byte_t opcode,
- word32_t addr,
- byte_t *buf,
- word32_t size,
- byte_t rsvd,
- word32_t length,
- byte_t param,
- byte_t control,
- byte_t rw,
- bool_t prnerr
- )
- {
- struct sc_iocmd sc_cmd;
- int kstat;
-
- if (pthru_fd < 0 || scsipt_notrom_error)
- return FALSE;
-
- memset(&sc_cmd, 0, sizeof(sc_cmd));
-
- /* set up SCSI CDB */
- switch (opcode & 0xf0) {
- case 0xa0:
- case 0xe0:
- /* 12-byte commands */
- sc_cmd.scsi_cdb[0] = opcode;
- sc_cmd.scsi_cdb[1] = param;
- sc_cmd.scsi_cdb[2] = (addr >> 24) & 0xff;
- sc_cmd.scsi_cdb[3] = (addr >> 16) & 0xff;
- sc_cmd.scsi_cdb[4] = (addr >> 8) & 0xff;
- sc_cmd.scsi_cdb[5] = (addr & 0xff);
- sc_cmd.scsi_cdb[6] = (length >> 24) & 0xff;
- sc_cmd.scsi_cdb[7] = (length >> 16) & 0xff;
- sc_cmd.scsi_cdb[8] = (length >> 8) & 0xff;
- sc_cmd.scsi_cdb[9] = length & 0xff;
- sc_cmd.scsi_cdb[10] = rsvd;
- sc_cmd.scsi_cdb[11] = control;
-
- sc_cmd.command_length = 12;
- break;
-
- case 0xc0:
- case 0xd0:
- case 0x20:
- case 0x30:
- case 0x40:
- /* 10-byte commands */
- sc_cmd.scsi_cdb[0] = opcode;
- sc_cmd.scsi_cdb[1] = param;
- sc_cmd.scsi_cdb[2] = (addr >> 24) & 0xff;
- sc_cmd.scsi_cdb[3] = (addr >> 16) & 0xff;
- sc_cmd.scsi_cdb[4] = (addr >> 8) & 0xff;
- sc_cmd.scsi_cdb[5] = addr & 0xff;
- sc_cmd.scsi_cdb[6] = rsvd;
- sc_cmd.scsi_cdb[7] = (length >> 8) & 0xff;
- sc_cmd.scsi_cdb[8] = length & 0xff;
- sc_cmd.scsi_cdb[9] = control;
-
- sc_cmd.command_length = 10;
- break;
-
- case 0x00:
- case 0x10:
- /* 6-byte commands */
- sc_cmd.scsi_cdb[0] = opcode;
- sc_cmd.scsi_cdb[1] = param;
- sc_cmd.scsi_cdb[2] = (addr >> 8) & 0xff;
- sc_cmd.scsi_cdb[3] = addr & 0xff;
- sc_cmd.scsi_cdb[4] = length & 0xff;
- sc_cmd.scsi_cdb[5] = control;
-
- sc_cmd.command_length = 6;
- break;
-
- default:
- if (app_data.scsierr_msg && prnerr)
- fprintf(errfp, "0x%02x: Unknown SCSI opcode\n",
- opcode);
- return FALSE;
- }
-
- DBGDUMP("SCSI CDB bytes", (byte_t *) sc_cmd.scsi_cdb,
- sc_cmd.command_length);
-
- /* set up sc_iocmd */
- sc_cmd.buffer = (caddr_t) buf;
- sc_cmd.data_length = (int) size;
- sc_cmd.timeout_value = 5; /* Allow 5 seconds */
-
- sc_cmd.flags = SC_ASYNC;
- if (size != 0)
- sc_cmd.flags |= (rw == READ_OP) ? B_READ : B_WRITE;
-
- /* Send the command down via the "pass-through" interface */
- if ((kstat = ioctl(pthru_fd, CDIOCMD, &sc_cmd)) < 0) {
- if (app_data.scsierr_msg && prnerr)
- perror("CDIOCMD ioctl failed");
-
- return FALSE;
- }
-
- if ((sc_cmd.status_validity & 0x01) != 0) {
- if (sc_cmd.scsi_bus_status != SC_GOOD_STATUS) {
- if (app_data.scsierr_msg && prnerr) {
- fprintf(errfp,
- "CD audio: %s %s:\n%s=0x%x %s=0x%x\n",
- "SCSI bus status error on",
- app_data.device,
- "Opcode",
- opcode,
- "Status",
- sc_cmd.scsi_bus_status);
- }
- }
-
- return FALSE;
- }
-
- if ((sc_cmd.status_validity & 0x02) != 0) {
- if (sc_cmd.adapter_status != SC_GOOD_STATUS) {
- if (app_data.scsierr_msg && prnerr) {
- fprintf(errfp,
- "CD audio: %s %s:\n%s=0x%x %s=0x%x\n",
- "adapter status error on",
- app_data.device,
- "Opcode",
- opcode,
- "Status",
- sc_cmd.adapter_status);
- }
- }
-
- return FALSE;
- }
-
- return TRUE;
- }
-
-
- /*
- * pthru_open
- * Open SCSI pass-through device
- *
- * Args:
- * path - device path name string
- *
- * Return:
- * TRUE - open successful
- * FALSE - open failed
- */
- bool_t
- pthru_open(char *path)
- {
- struct stat stbuf;
- char errstr[ERR_BUF_SZ];
-
- /* Check for validity of device node */
- if (stat(path, &stbuf) < 0) {
- sprintf(errstr, app_data.str_staterr, path);
- cd_fatal_popup(app_data.str_fatal, errstr);
- return FALSE;
- }
-
- if (!S_ISCHR(stbuf.st_mode)) {
- sprintf(errstr, app_data.str_noderr, path);
- cd_fatal_popup(app_data.str_fatal, errstr);
- return FALSE;
- }
-
- if ((pthru_fd = openx(path, O_RDONLY, NULL, SC_DIAGNOSTIC)) < 0) {
- DBGPRN(errfp, "Cannot open %s: errno=%d\n", path, errno);
- return FALSE;
- }
-
- return TRUE;
- }
-
-
- /*
- * pthru_close
- * Close SCSI pass-through device
- *
- * Args:
- * Nothing.
- *
- * Return:
- * Nothing.
- */
- void
- pthru_close(void)
- {
- if (pthru_fd >= 0) {
- close(pthru_fd);
- pthru_fd = -1;
- }
- }
-
-
- /*
- * pthru_vers
- * Return OS Interface Module version string
- *
- * Args:
- * Nothing.
- *
- * Return:
- * Module version text string.
- */
- char *
- pthru_vers(void)
- {
- return ("OS Interface module (for IBM AIX 3.2.x and 4.x)\n");
- }
-
- #endif /* _AIX DI_SCSIPT DEMO_ONLY */
-
-