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ide-cd: merge cdrom_select_speed() into ide_cdrom_select_speed() 

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-02-01 23:09:24 +01:00
parent 53126b9127
commit 5c68429dfe
1 changed files with 29 additions and 37 deletions
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64
drivers/ide/ide-cd.c
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@ -2017,38 +2017,6 @@ static int ide_cd_read_tochdr(ide_drive_t *drive, void *arg)
return 0;
}
/* ATAPI cdrom drives are free to select the speed you request or any slower
rate :-( Requesting too fast a speed will _not_ produce an error. */
static int cdrom_select_speed(ide_drive_t *drive, int speed,
struct request_sense *sense)
{
struct cdrom_info *cd = drive->driver_data;
struct cdrom_device_info *cdi = &cd->devinfo;
struct request req;
cdrom_prepare_request(drive, &req);
req.sense = sense;
if (speed == 0)
speed = 0xffff; /* set to max */
else
speed *= 177; /* Nx to kbytes/s */
req.cmd[0] = GPCMD_SET_SPEED;
/* Read Drive speed in kbytes/second MSB */
req.cmd[2] = (speed >> 8) & 0xff;
/* Read Drive speed in kbytes/second LSB */
req.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 */
req.cmd[4] = (speed >> 8) & 0xff;
/* Write Drive speed in kbytes/second LSB */
req.cmd[5] = speed & 0xff;
}
return cdrom_queue_packet_command(drive, &req);
}
static int cdrom_get_toc_entry(ide_drive_t *drive, int track,
struct atapi_toc_entry **ent)
{
@ -2272,22 +2240,46 @@ static void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf)
cd->max_speed = (maxspeed + (176/2)) / 176;
}
static
int ide_cdrom_select_speed (struct cdrom_device_info *cdi, int speed)
/*
* ATAPI devices are free to select the speed you request or any slower
* rate. :-( Requesting too fast a speed will _not_ produce an error.
*/
static 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;
if ((stat = cdrom_select_speed(drive, speed, &sense)) < 0)
return stat;
cdrom_prepare_request(drive, &rq);
rq.sense = &sense;
if (speed == 0)
speed = 0xffff; /* set to max */
else
speed *= 177; /* Nx to kbytes/s */
rq.cmd[0] = GPCMD_SET_SPEED;
/* Read Drive speed in kbytes/second MSB/LSB */
rq.cmd[2] = (speed >> 8) & 0xff;
rq.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;
}
stat = cdrom_queue_packet_command(drive, &rq);
if (!ide_cdrom_get_capabilities(drive, buf)) {
ide_cdrom_update_speed(drive, buf);
cdi->speed = cd->current_speed;
}
return 0;
}