+++ /dev/null
-/*
- $Id: freebsd_cam.c,v 1.4 2005/01/27 04:00:48 rocky Exp $
-
- Copyright (C) 2004, 2005 Rocky Bernstein <rocky@panix.com>
-
- 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-*/
-
-/* This file contains FreeBSD-specific code and implements low-level
- control of the CD drive via SCSI emulation.
-*/
-\f
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-static const char _rcsid[] = "$Id: freebsd_cam.c,v 1.4 2005/01/27 04:00:48 rocky Exp $";
-
-#ifdef HAVE_FREEBSD_CDROM
-
-#include "freebsd.h"
-#include <cdio/scsi_mmc.h>
-
-/* Default value in seconds we will wait for a command to
- complete. */
-#define DEFAULT_TIMEOUT_MSECS 10000
-
-/*!
- Run a SCSI MMC command.
-
- p_user_data internal CD structure.
- i_timeout_ms time in milliseconds we will wait for the command
- to complete. If this value is -1, use the default
- time-out value.
- i_cdb Size of p_cdb
- p_cdb CDB bytes.
- e_direction direction the transfer is to go.
- i_buf Size of buffer
- p_buf Buffer for data, both sending and receiving
-
- Return 0 if no error.
- */
-int
-run_scsi_cmd_freebsd_cam( const void *p_user_data, unsigned int i_timeout_ms,
- unsigned int i_cdb, const scsi_mmc_cdb_t *p_cdb,
- scsi_mmc_direction_t e_direction,
- unsigned int i_buf, /*in/out*/ void *p_buf )
-{
- const _img_private_t *p_env = p_user_data;
- int i_status;
- int direction = CAM_DEV_QFRZDIS;
- union ccb ccb;
-
- if (!p_env || !p_env->cam) return -2;
-
- memset(&ccb, 0, sizeof(ccb));
-
- ccb.ccb_h.path_id = p_env->cam->path_id;
- ccb.ccb_h.target_id = p_env->cam->target_id;
- ccb.ccb_h.target_lun = p_env->cam->target_lun;
- ccb.ccb_h.timeout = i_timeout_ms;
-
- if (!i_cdb)
- direction |= CAM_DIR_NONE;
- else
- direction |= (e_direction == SCSI_MMC_DATA_READ)?CAM_DIR_IN : CAM_DIR_OUT;
- cam_fill_csio (&(ccb.csio), 1, NULL,
- direction | CAM_DEV_QFRZDIS, MSG_SIMPLE_Q_TAG, p_buf, i_buf,
- sizeof(ccb.csio.sense_data), 0, 30*1000);
-
- memcpy(ccb.csio.cdb_io.cdb_bytes, p_cdb, i_cdb);
-
- ccb.csio.cdb_len =
- scsi_mmc_get_cmd_len(ccb.csio.cdb_io.cdb_bytes[0]);
-
- if ((i_status = cam_send_ccb(p_env->cam, &ccb)) < 0)
- {
- cdio_warn ("transport failed: %d", i_status);
- return -1;
- }
- if ((ccb.ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP)
- {
- return 0;
- }
- errno = EIO;
- i_status = ERRCODE(((unsigned char *)&ccb.csio.sense_data));
- if (i_status == 0)
- i_status = -1;
- else
- CREAM_ON_ERRNO(((unsigned char *)&ccb.csio.sense_data));
- cdio_warn ("transport failed: %d", i_status);
- return i_status;
-}
-
-bool
-init_freebsd_cam (_img_private_t *p_env)
-{
- char pass[100];
-
- p_env->cam=NULL;
- memset (&p_env->ccb, 0, sizeof(p_env->ccb));
- p_env->ccb.ccb_h.func_code = XPT_GDEVLIST;
-
- if (-1 == p_env->gen.fd)
- p_env->gen.fd = open (p_env->device, O_RDONLY, 0);
-
- if (p_env->gen.fd < 0)
- {
- cdio_warn ("open (%s): %s", p_env->device, strerror (errno));
- return false;
- }
-
- if (ioctl (p_env->gen.fd, CAMGETPASSTHRU, &p_env->ccb) < 0)
- {
- cdio_warn ("open: %s", strerror (errno));
- return false;
- }
- sprintf (pass,"/dev/%.15s%u",
- p_env->ccb.cgdl.periph_name,
- p_env->ccb.cgdl.unit_number);
- p_env->cam = cam_open_pass (pass,O_RDWR,NULL);
- if (!p_env->cam) return false;
-
- p_env->gen.init = true;
- p_env->b_cam_init = true;
- return true;
-}
-
-void
-free_freebsd_cam (void *user_data)
-{
- _img_private_t *p_env = user_data;
-
- if (NULL == p_env) return;
-
- if (p_env->gen.fd > 0)
- close (p_env->gen.fd);
- p_env->gen.fd = -1;
-
- if(p_env->cam)
- cam_close_device(p_env->cam);
-
- free (p_env);
-}
-
-driver_return_code_t
-read_mode2_sector_freebsd_cam (_img_private_t *p_env, void *data, lsn_t lsn,
- bool b_form2)
-{
- if ( b_form2 )
- return read_mode2_sectors_freebsd_cam(p_env, data, lsn, 1);
- else {
- /* Need to pick out the data portion from a mode2 form2 frame */
- char buf[M2RAW_SECTOR_SIZE] = { 0, };
- int retval = read_mode2_sectors_freebsd_cam(p_env, buf, lsn, 1);
- if ( retval ) return retval;
- memcpy (((char *)data), buf + CDIO_CD_SUBHEADER_SIZE, CDIO_CD_FRAMESIZE);
- return DRIVER_OP_SUCCESS;
- }
-}
-
-/*!
- Reads nblocks of mode2 sectors from cd device into data starting
- from lsn.
- Returns 0 if no error.
- */
-int
-read_mode2_sectors_freebsd_cam (_img_private_t *p_env, void *p_buf,
- lsn_t lsn, unsigned int nblocks)
-{
- scsi_mmc_cdb_t cdb = {{0, }};
-
- bool b_read_10 = false;
-
- CDIO_MMC_SET_READ_LBA(cdb.field, lsn);
-
- if (b_read_10) {
- int retval;
-
- CDIO_MMC_SET_COMMAND(cdb.field, CDIO_MMC_GPCMD_READ_10);
- CDIO_MMC_SET_READ_LENGTH16(cdb.field, nblocks);
- if ((retval = scsi_mmc_set_blocksize (p_env->gen.cdio, M2RAW_SECTOR_SIZE)))
- return retval;
-
- if ((retval = run_scsi_cmd_freebsd_cam (p_env, 0,
- scsi_mmc_get_cmd_len(cdb.field[0]),
- &cdb,
- SCSI_MMC_DATA_READ,
- M2RAW_SECTOR_SIZE * nblocks,
- p_buf)))
- {
- scsi_mmc_set_blocksize (p_env->gen.cdio, CDIO_CD_FRAMESIZE);
- return retval;
- }
-
- return scsi_mmc_set_blocksize (p_env->gen.cdio, CDIO_CD_FRAMESIZE);
- } else {
- CDIO_MMC_SET_COMMAND(cdb.field, CDIO_MMC_GPCMD_READ_CD);
- CDIO_MMC_SET_READ_LENGTH24(cdb.field, nblocks);
- cdb.field[1] = 0; /* sector size mode2 */
- cdb.field[9] = 0x58; /* 2336 mode2 */
- return run_scsi_cmd_freebsd_cam (p_env, 0,
- scsi_mmc_get_cmd_len(cdb.field[0]),
- &cdb,
- SCSI_MMC_DATA_READ,
- M2RAW_SECTOR_SIZE * nblocks, p_buf);
-
- }
- }
-
-/*!
- * Eject using SCSI MMC commands. Return 0 if successful.
- */
-int
-eject_media_freebsd_cam (_img_private_t *p_env)
-{
- int i_status;
- scsi_mmc_cdb_t cdb = {{0, }};
- uint8_t buf[1];
-
- CDIO_MMC_SET_COMMAND(cdb.field, CDIO_MMC_GPCMD_ALLOW_MEDIUM_REMOVAL);
-
- i_status = run_scsi_cmd_freebsd_cam (p_env, DEFAULT_TIMEOUT_MSECS,
- scsi_mmc_get_cmd_len(cdb.field[0]),
- &cdb, SCSI_MMC_DATA_WRITE, 0, &buf);
- if (i_status) return i_status;
-
- cdb.field[4] = 1;
- i_status = run_scsi_cmd_freebsd_cam (p_env, DEFAULT_TIMEOUT_MSECS,
- scsi_mmc_get_cmd_len(cdb.field[0]), &cdb,
- SCSI_MMC_DATA_WRITE, 0, &buf);
- if (i_status) return i_status;
-
- CDIO_MMC_SET_COMMAND(cdb.field, CDIO_MMC_GPCMD_START_STOP);
- cdb.field[4] = 2; /* eject */
-
- return run_scsi_cmd_freebsd_cam (p_env, DEFAULT_TIMEOUT_MSECS,
- scsi_mmc_get_cmd_len(cdb.field[0]),
- &cdb,
- SCSI_MMC_DATA_WRITE, 0, &buf);
-}
-
-#endif /* HAVE_FREEBSD_CDROM */
projects / vuplus_xbmc / blobdiff