diff options
| author | Simon Glass <sjg@chromium.org> | 2017-06-14 21:28:45 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2017-07-11 10:08:19 -0600 |
| commit | 5c56176318c8a602fa78813ac273f16a10278a2d (patch) | |
| tree | e5b96c93ea8ed53607d47ab6ce0438c4246a7a84 | |
| parent | f6580ef39b332387f84334d238320ce99115af67 (diff) | |
dm: scsi: Split out the bus scanning code
Split out the code that scans a single SCSI bus into a separate function.
This will allow it to be used from driver model.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
| -rw-r--r-- | drivers/scsi/scsi.c | 35 | ||||
| -rw-r--r-- | include/scsi.h | 8 |
2 files changed, 31 insertions, 12 deletions
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index 80c5ce699e..2b87548bd3 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -601,9 +601,30 @@ static int do_scsi_scan_one(struct udevice *dev, int id, int lun, bool verbose) return 0; } +int scsi_scan_dev(struct udevice *dev, bool verbose) +{ + struct scsi_platdata *uc_plat; /* scsi controller platdata */ + int ret; + int i; + int lun; + + /* probe SCSI controller driver */ + ret = device_probe(dev); + if (ret) + return ret; + + /* Get controller platdata */ + uc_plat = dev_get_uclass_platdata(dev); + + for (i = 0; i < uc_plat->max_id; i++) + for (lun = 0; lun < uc_plat->max_lun; lun++) + do_scsi_scan_one(dev, i, lun, verbose); + + return 0; +} + int scsi_scan(bool verbose) { - unsigned char i, lun; struct uclass *uc; struct udevice *dev; /* SCSI controller */ int ret; @@ -618,19 +639,9 @@ int scsi_scan(bool verbose) return ret; uclass_foreach_dev(dev, uc) { - struct scsi_platdata *plat; /* scsi controller platdata */ - - /* probe SCSI controller driver */ - ret = device_probe(dev); + ret = scsi_scan_dev(dev, verbose); if (ret) return ret; - - /* Get controller platdata */ - plat = dev_get_uclass_platdata(dev); - - for (i = 0; i < plat->max_id; i++) - for (lun = 0; lun < plat->max_lun; lun++) - do_scsi_scan_one(dev, i, lun, verbose); } return 0; diff --git a/include/scsi.h b/include/scsi.h index 9cdd13c795..7173912de4 100644 --- a/include/scsi.h +++ b/include/scsi.h @@ -219,6 +219,14 @@ int scsi_bus_reset(struct udevice *dev); */ int scsi_scan(bool verbose); +/** + * scsi_scan_dev() - scan a SCSI bus and create devices + * + * @dev: SCSI bus + * @verbose: true to show information about each device found + */ +int scsi_scan_dev(struct udevice *dev, bool verbose); + #ifndef CONFIG_DM_SCSI void scsi_low_level_init(int busdevfunc); void scsi_init(void); |