diff options
| -rw-r--r-- | drivers/ata/libahci.c | 2 | ||||
| -rw-r--r-- | drivers/ata/libata-core.c | 21 | ||||
| -rw-r--r-- | drivers/ata/libata-sff.c | 2 | ||||
| -rw-r--r-- | drivers/ata/libata-transport.c | 30 | ||||
| -rw-r--r-- | drivers/ata/sata_fsl.c | 2 | ||||
| -rw-r--r-- | drivers/ata/sata_inic162x.c | 2 | ||||
| -rw-r--r-- | drivers/ata/sata_sil24.c | 2 | ||||
| -rw-r--r-- | include/linux/libata.h | 2 |
8 files changed, 42 insertions, 21 deletions
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index 94edbc89a48c..b7b460560a92 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -1300,7 +1300,7 @@ unsigned int ahci_dev_classify(struct ata_port *ap) tf.lbal = (tmp >> 8) & 0xff; tf.nsect = (tmp) & 0xff; - return ata_dev_classify(&tf); + return ata_port_classify(ap, &tf); } EXPORT_SYMBOL_GPL(ahci_dev_classify); diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 72f56c32fe83..28645ac04d9f 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -1007,32 +1007,21 @@ unsigned int ata_dev_classify(const struct ata_taskfile *tf) * SEMB signature. This is worked around in * ata_dev_read_id(). */ - if ((tf->lbam == 0) && (tf->lbah == 0)) { - DPRINTK("found ATA device by sig\n"); + if (tf->lbam == 0 && tf->lbah == 0) return ATA_DEV_ATA; - } - if ((tf->lbam == 0x14) && (tf->lbah == 0xeb)) { - DPRINTK("found ATAPI device by sig\n"); + if (tf->lbam == 0x14 && tf->lbah == 0xeb) return ATA_DEV_ATAPI; - } - if ((tf->lbam == 0x69) && (tf->lbah == 0x96)) { - DPRINTK("found PMP device by sig\n"); + if (tf->lbam == 0x69 && tf->lbah == 0x96) return ATA_DEV_PMP; - } - if ((tf->lbam == 0x3c) && (tf->lbah == 0xc3)) { - DPRINTK("found SEMB device by sig (could be ATA device)\n"); + if (tf->lbam == 0x3c && tf->lbah == 0xc3) return ATA_DEV_SEMB; - } - if ((tf->lbam == 0xcd) && (tf->lbah == 0xab)) { - DPRINTK("found ZAC device by sig\n"); + if (tf->lbam == 0xcd && tf->lbah == 0xab) return ATA_DEV_ZAC; - } - DPRINTK("unknown device\n"); return ATA_DEV_UNKNOWN; } EXPORT_SYMBOL_GPL(ata_dev_classify); diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 39c026f3948c..a119fabe0919 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -1853,7 +1853,7 @@ unsigned int ata_sff_dev_classify(struct ata_device *dev, int present, return ATA_DEV_NONE; /* determine if device is ATA or ATAPI */ - class = ata_dev_classify(&tf); + class = ata_port_classify(ap, &tf); if (class == ATA_DEV_UNKNOWN) { /* If the device failed diagnostic, it's likely to diff --git a/drivers/ata/libata-transport.c b/drivers/ata/libata-transport.c index 4162d625fc92..ca129854a88c 100644 --- a/drivers/ata/libata-transport.c +++ b/drivers/ata/libata-transport.c @@ -321,6 +321,36 @@ int ata_tport_add(struct device *parent, return error; } +/** + * ata_port_classify - determine device type based on ATA-spec signature + * @ap: ATA port device on which the classification should be run + * @tf: ATA taskfile register set for device to be identified + * + * A wrapper around ata_dev_classify() to provide additional logging + * + * RETURNS: + * Device type, %ATA_DEV_ATA, %ATA_DEV_ATAPI, %ATA_DEV_PMP, + * %ATA_DEV_ZAC, or %ATA_DEV_UNKNOWN the event of failure. + */ +unsigned int ata_port_classify(struct ata_port *ap, + const struct ata_taskfile *tf) +{ + int i; + unsigned int class = ata_dev_classify(tf); + + /* Start with index '1' to skip the 'unknown' entry */ + for (i = 1; i < ARRAY_SIZE(ata_class_names); i++) { + if (ata_class_names[i].value == class) { + ata_port_dbg(ap, "found %s device by sig\n", + ata_class_names[i].name); + return class; + } + } + + ata_port_info(ap, "found unknown device (class %u)\n", class); + return class; +} +EXPORT_SYMBOL_GPL(ata_port_classify); /* * ATA link attributes diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c index ec52511ae60f..7504d9fbff2a 100644 --- a/drivers/ata/sata_fsl.c +++ b/drivers/ata/sata_fsl.c @@ -814,7 +814,7 @@ static unsigned int sata_fsl_dev_classify(struct ata_port *ap) tf.lbal = (temp >> 8) & 0xff; tf.nsect = temp & 0xff; - return ata_dev_classify(&tf); + return ata_port_classify(ap, &tf); } static int sata_fsl_hardreset(struct ata_link *link, unsigned int *class, diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c index e517bd8822a5..b6239dae524a 100644 --- a/drivers/ata/sata_inic162x.c +++ b/drivers/ata/sata_inic162x.c @@ -657,7 +657,7 @@ static int inic_hardreset(struct ata_link *link, unsigned int *class, } inic_tf_read(ap, &tf); - *class = ata_dev_classify(&tf); + *class = ata_port_classify(ap, &tf); } return 0; diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c index f99ec6f7d7c0..7e9c1945dc81 100644 --- a/drivers/ata/sata_sil24.c +++ b/drivers/ata/sata_sil24.c @@ -680,7 +680,7 @@ static int sil24_softreset(struct ata_link *link, unsigned int *class, } sil24_read_tf(ap, 0, &tf); - *class = ata_dev_classify(&tf); + *class = ata_port_classify(ap, &tf); DPRINTK("EXIT, class=%u\n", *class); return 0; diff --git a/include/linux/libata.h b/include/linux/libata.h index 2a8404b26083..235fdbeb19ea 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -1160,6 +1160,8 @@ extern enum ata_completion_errors ata_noop_qc_prep(struct ata_queued_cmd *qc); extern void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg, unsigned int n_elem); extern unsigned int ata_dev_classify(const struct ata_taskfile *tf); +extern unsigned int ata_port_classify(struct ata_port *ap, + const struct ata_taskfile *tf); extern void ata_dev_disable(struct ata_device *adev); extern void ata_id_string(const u16 *id, unsigned char *s, unsigned int ofs, unsigned int len); |