From 5f828546e1acb45678e73d3a9a796c1a3a8c7846 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Tue, 15 Jul 2008 21:21:42 +0200 Subject: [PATCH] ide-cd: convert ide_cd_queue_pc to use blk_execute_rq This converts ide_cd_queue_pc to use blk_execute_rq, necessitating changing the ide_cd_queue_pc prototype into a form that doesn't takes a pointer to request struct. ide_cd_queue_pc works like scsi_execute. Signed-off-by: FUJITA Tomonori Cc: Borislav Petkov Cc: Jens Axboe Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-cd.c | 96 +++++++++++++++++++---------------- drivers/ide/ide-cd.h | 3 +- drivers/ide/ide-cd_ioctl.c | 101 ++++++++++++++++++------------------- 3 files changed, 103 insertions(+), 97 deletions(-) diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index ff8815937d32..792a3cf73d6e 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -839,34 +839,54 @@ static void ide_cd_request_sense_fixup(struct request *rq) } } -int ide_cd_queue_pc(ide_drive_t *drive, struct request *rq) +int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd, + int write, void *buffer, unsigned *bufflen, + struct request_sense *sense, int timeout, + unsigned int cmd_flags) { - struct request_sense sense; + struct cdrom_info *info = drive->driver_data; + struct request_sense local_sense; int retries = 10; - unsigned int flags = rq->cmd_flags; + unsigned int flags = 0; - if (rq->sense == NULL) - rq->sense = &sense; + if (!sense) + sense = &local_sense; /* start of retry loop */ do { + struct request *rq; int error; - unsigned long time = jiffies; - rq->cmd_flags = flags; - error = ide_do_drive_cmd(drive, rq, ide_wait); - time = jiffies - time; + rq = blk_get_request(drive->queue, write, __GFP_WAIT); + + memcpy(rq->cmd, cmd, BLK_MAX_CDB); + rq->cmd_type = REQ_TYPE_ATA_PC; + rq->sense = sense; + rq->cmd_flags |= cmd_flags; + rq->timeout = timeout; + if (buffer) { + rq->data = buffer; + rq->data_len = *bufflen; + } + + error = blk_execute_rq(drive->queue, info->disk, rq, 0); + + if (buffer) + *bufflen = rq->data_len; + + flags = rq->cmd_flags; + blk_put_request(rq); /* * FIXME: we should probably abort/retry or something in case of * failure. */ - if (rq->cmd_flags & REQ_FAILED) { + if (flags & REQ_FAILED) { /* * The request failed. Retry if it was due to a unit * attention status (usually means media was changed). */ - struct request_sense *reqbuf = rq->sense; + struct request_sense *reqbuf = sense; if (reqbuf->sense_key == UNIT_ATTENTION) cdrom_saw_media_change(drive); @@ -886,10 +906,10 @@ int ide_cd_queue_pc(ide_drive_t *drive, struct request *rq) } /* end of retry loop */ - } while ((rq->cmd_flags & REQ_FAILED) && retries >= 0); + } while ((flags & REQ_FAILED) && retries >= 0); /* return an error if the command failed */ - return (rq->cmd_flags & REQ_FAILED) ? -EIO : 0; + return (flags & REQ_FAILED) ? -EIO : 0; } /* @@ -1269,23 +1289,20 @@ static void msf_from_bcd(struct atapi_msf *msf) int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense) { - struct request req; struct cdrom_info *info = drive->driver_data; struct cdrom_device_info *cdi = &info->devinfo; + unsigned char cmd[BLK_MAX_CDB]; - ide_cd_init_rq(drive, &req); - - req.sense = sense; - req.cmd[0] = GPCMD_TEST_UNIT_READY; - req.cmd_flags |= REQ_QUIET; + memset(cmd, 0, BLK_MAX_CDB); + cmd[0] = GPCMD_TEST_UNIT_READY; /* * Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to switch CDs * instead of supporting the LOAD_UNLOAD opcode. */ - req.cmd[7] = cdi->sanyo_slot % 3; + cmd[7] = cdi->sanyo_slot % 3; - return ide_cd_queue_pc(drive, &req); + return ide_cd_queue_pc(drive, cmd, 0, NULL, 0, sense, 0, REQ_QUIET); } static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, @@ -1298,17 +1315,14 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, } capbuf; int stat; - struct request req; - - ide_cd_init_rq(drive, &req); + unsigned char cmd[BLK_MAX_CDB]; + unsigned len = sizeof(capbuf); - req.sense = sense; - req.cmd[0] = GPCMD_READ_CDVD_CAPACITY; - req.data = (char *)&capbuf; - req.data_len = sizeof(capbuf); - req.cmd_flags |= REQ_QUIET; + memset(cmd, 0, BLK_MAX_CDB); + cmd[0] = GPCMD_READ_CDVD_CAPACITY; - stat = ide_cd_queue_pc(drive, &req); + stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, sense, 0, + REQ_QUIET); if (stat == 0) { *capacity = 1 + be32_to_cpu(capbuf.lba); *sectors_per_frame = @@ -1322,24 +1336,20 @@ static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag, int format, char *buf, int buflen, struct request_sense *sense) { - struct request req; + unsigned char cmd[BLK_MAX_CDB]; - ide_cd_init_rq(drive, &req); + memset(cmd, 0, BLK_MAX_CDB); - req.sense = sense; - req.data = buf; - req.data_len = buflen; - req.cmd_flags |= REQ_QUIET; - req.cmd[0] = GPCMD_READ_TOC_PMA_ATIP; - req.cmd[6] = trackno; - req.cmd[7] = (buflen >> 8); - req.cmd[8] = (buflen & 0xff); - req.cmd[9] = (format << 6); + cmd[0] = GPCMD_READ_TOC_PMA_ATIP; + cmd[6] = trackno; + cmd[7] = (buflen >> 8); + cmd[8] = (buflen & 0xff); + cmd[9] = (format << 6); if (msf_flag) - req.cmd[1] = 2; + cmd[1] = 2; - return ide_cd_queue_pc(drive, &req); + return ide_cd_queue_pc(drive, cmd, 0, buf, &buflen, sense, 0, REQ_QUIET); } /* Try to read the entire TOC for the disk into our internal buffer. */ diff --git a/drivers/ide/ide-cd.h b/drivers/ide/ide-cd.h index a58801c4484d..df01cfd797cf 100644 --- a/drivers/ide/ide-cd.h +++ b/drivers/ide/ide-cd.h @@ -144,7 +144,8 @@ void ide_cd_log_error(const char *, struct request *, struct request_sense *); /* ide-cd.c functions used by ide-cd_ioctl.c */ void ide_cd_init_rq(ide_drive_t *, struct request *); -int ide_cd_queue_pc(ide_drive_t *, struct request *); +int ide_cd_queue_pc(ide_drive_t *, const unsigned char *, int, void *, + unsigned *, struct request_sense *, int, unsigned int); int ide_cd_read_toc(ide_drive_t *, struct request_sense *); int ide_cdrom_get_capabilities(ide_drive_t *, u8 *); void ide_cdrom_update_speed(ide_drive_t *, u8 *); diff --git a/drivers/ide/ide-cd_ioctl.c b/drivers/ide/ide-cd_ioctl.c index 6d147ce6782f..851277074302 100644 --- a/drivers/ide/ide-cd_ioctl.c +++ b/drivers/ide/ide-cd_ioctl.c @@ -104,8 +104,8 @@ int cdrom_eject(ide_drive_t *drive, int ejectflag, { struct cdrom_info *cd = drive->driver_data; struct cdrom_device_info *cdi = &cd->devinfo; - struct request req; char loej = 0x02; + unsigned char cmd[BLK_MAX_CDB]; if ((cd->cd_flags & IDE_CD_FLAG_NO_EJECT) && !ejectflag) return -EDRIVE_CANT_DO_THIS; @@ -114,17 +114,16 @@ int cdrom_eject(ide_drive_t *drive, int ejectflag, if ((cd->cd_flags & IDE_CD_FLAG_DOOR_LOCKED) && ejectflag) return 0; - ide_cd_init_rq(drive, &req); - /* only tell drive to close tray if open, if it can do that */ if (ejectflag && (cdi->mask & CDC_CLOSE_TRAY)) loej = 0; - req.sense = sense; - req.cmd[0] = GPCMD_START_STOP_UNIT; - req.cmd[4] = loej | (ejectflag != 0); + memset(cmd, 0, BLK_MAX_CDB); + + cmd[0] = GPCMD_START_STOP_UNIT; + cmd[4] = loej | (ejectflag != 0); - return ide_cd_queue_pc(drive, &req); + return ide_cd_queue_pc(drive, cmd, 0, NULL, 0, sense, 0, 0); } /* Lock the door if LOCKFLAG is nonzero; unlock it otherwise. */ @@ -134,7 +133,6 @@ int ide_cd_lockdoor(ide_drive_t *drive, int lockflag, { struct cdrom_info *cd = drive->driver_data; struct request_sense my_sense; - struct request req; int stat; if (sense == NULL) @@ -144,11 +142,15 @@ int ide_cd_lockdoor(ide_drive_t *drive, int lockflag, if (cd->cd_flags & IDE_CD_FLAG_NO_DOORLOCK) { stat = 0; } else { - ide_cd_init_rq(drive, &req); - req.sense = sense; - req.cmd[0] = GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL; - req.cmd[4] = lockflag ? 1 : 0; - stat = ide_cd_queue_pc(drive, &req); + unsigned char cmd[BLK_MAX_CDB]; + + memset(cmd, 0, BLK_MAX_CDB); + + cmd[0] = GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL; + cmd[4] = lockflag ? 1 : 0; + + stat = ide_cd_queue_pc(drive, cmd, 0, NULL, 0, + sense, 0, 0); } /* If we got an illegal field error, the drive @@ -206,32 +208,30 @@ int ide_cdrom_select_speed(struct cdrom_device_info *cdi, int speed) { ide_drive_t *drive = cdi->handle; struct cdrom_info *cd = drive->driver_data; - struct request rq; struct request_sense sense; u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE]; int stat; - - ide_cd_init_rq(drive, &rq); - - rq.sense = &sense; + unsigned char cmd[BLK_MAX_CDB]; if (speed == 0) speed = 0xffff; /* set to max */ else speed *= 177; /* Nx to kbytes/s */ - rq.cmd[0] = GPCMD_SET_SPEED; + memset(cmd, 0, BLK_MAX_CDB); + + cmd[0] = GPCMD_SET_SPEED; /* Read Drive speed in kbytes/second MSB/LSB */ - rq.cmd[2] = (speed >> 8) & 0xff; - rq.cmd[3] = speed & 0xff; + cmd[2] = (speed >> 8) & 0xff; + cmd[3] = speed & 0xff; if ((cdi->mask & (CDC_CD_R | CDC_CD_RW | CDC_DVD_R)) != (CDC_CD_R | CDC_CD_RW | CDC_DVD_R)) { /* Write Drive speed in kbytes/second MSB/LSB */ - rq.cmd[4] = (speed >> 8) & 0xff; - rq.cmd[5] = speed & 0xff; + cmd[4] = (speed >> 8) & 0xff; + cmd[5] = speed & 0xff; } - stat = ide_cd_queue_pc(drive, &rq); + stat = ide_cd_queue_pc(drive, cmd, 0, NULL, 0, &sense, 0, 0); if (!ide_cdrom_get_capabilities(drive, buf)) { ide_cdrom_update_speed(drive, buf); @@ -268,21 +268,19 @@ int ide_cdrom_get_mcn(struct cdrom_device_info *cdi, { ide_drive_t *drive = cdi->handle; int stat, mcnlen; - struct request rq; char buf[24]; + unsigned char cmd[BLK_MAX_CDB]; + unsigned len = sizeof(buf); - ide_cd_init_rq(drive, &rq); + memset(cmd, 0, BLK_MAX_CDB); - rq.data = buf; - rq.data_len = sizeof(buf); + cmd[0] = GPCMD_READ_SUBCHANNEL; + cmd[1] = 2; /* MSF addressing */ + cmd[2] = 0x40; /* request subQ data */ + cmd[3] = 2; /* format */ + cmd[8] = len; - rq.cmd[0] = GPCMD_READ_SUBCHANNEL; - rq.cmd[1] = 2; /* MSF addressing */ - rq.cmd[2] = 0x40; /* request subQ data */ - rq.cmd[3] = 2; /* format */ - rq.cmd[8] = sizeof(buf); - - stat = ide_cd_queue_pc(drive, &rq); + stat = ide_cd_queue_pc(drive, cmd, 0, buf, &len, NULL, 0, 0); if (stat) return stat; @@ -351,8 +349,8 @@ static int ide_cd_fake_play_trkind(ide_drive_t *drive, void *arg) struct atapi_toc_entry *first_toc, *last_toc; unsigned long lba_start, lba_end; int stat; - struct request rq; struct request_sense sense; + unsigned char cmd[BLK_MAX_CDB]; stat = ide_cd_get_toc_entry(drive, ti->cdti_trk0, &first_toc); if (stat) @@ -370,14 +368,13 @@ static int ide_cd_fake_play_trkind(ide_drive_t *drive, void *arg) if (lba_end <= lba_start) return -EINVAL; - ide_cd_init_rq(drive, &rq); + memset(cmd, 0, BLK_MAX_CDB); - rq.sense = &sense; - rq.cmd[0] = GPCMD_PLAY_AUDIO_MSF; - lba_to_msf(lba_start, &rq.cmd[3], &rq.cmd[4], &rq.cmd[5]); - lba_to_msf(lba_end - 1, &rq.cmd[6], &rq.cmd[7], &rq.cmd[8]); + cmd[0] = GPCMD_PLAY_AUDIO_MSF; + lba_to_msf(lba_start, &cmd[3], &cmd[4], &cmd[5]); + lba_to_msf(lba_end - 1, &cmd[6], &cmd[7], &cmd[8]); - return ide_cd_queue_pc(drive, &rq); + return ide_cd_queue_pc(drive, cmd, 0, NULL, 0, &sense, 0, 0); } static int ide_cd_read_tochdr(ide_drive_t *drive, void *arg) @@ -447,8 +444,9 @@ int ide_cdrom_audio_ioctl(struct cdrom_device_info *cdi, int ide_cdrom_packet(struct cdrom_device_info *cdi, struct packet_command *cgc) { - struct request req; ide_drive_t *drive = cdi->handle; + unsigned int flags = 0; + unsigned len = cgc->buflen; if (cgc->timeout <= 0) cgc->timeout = ATAPI_WAIT_PC; @@ -456,24 +454,21 @@ int ide_cdrom_packet(struct cdrom_device_info *cdi, /* here we queue the commands from the uniform CD-ROM layer. the packet must be complete, as we do not touch it at all. */ - ide_cd_init_rq(drive, &req); if (cgc->data_direction == CGC_DATA_WRITE) - req.cmd_flags |= REQ_RW; + flags |= REQ_RW; - memcpy(req.cmd, cgc->cmd, CDROM_PACKET_SIZE); if (cgc->sense) memset(cgc->sense, 0, sizeof(struct request_sense)); - req.data = cgc->buffer; - req.data_len = cgc->buflen; - req.timeout = cgc->timeout; if (cgc->quiet) - req.cmd_flags |= REQ_QUIET; + flags |= REQ_QUIET; - req.sense = cgc->sense; - cgc->stat = ide_cd_queue_pc(drive, &req); + cgc->stat = ide_cd_queue_pc(drive, cgc->cmd, + cgc->data_direction == CGC_DATA_WRITE, + cgc->buffer, &len, + cgc->sense, cgc->timeout, flags); if (!cgc->stat) - cgc->buflen -= req.data_len; + cgc->buflen -= len; return cgc->stat; } -- 2.20.1