diff options
author | Tejun Heo <htejun@gmail.com> | 2007-05-05 14:50:38 (GMT) |
---|---|---|
committer | Jeff Garzik <jeff@garzik.org> | 2007-05-11 22:12:42 (GMT) |
commit | 3a32a8e96694a243ec7e7feb6d76dfc4b1fe90c1 (patch) | |
tree | c7e326d85996b196770e5bef4d7fd005380b09a0 /drivers/ata/libata-acpi.c | |
parent | e92351bb53c0849fabfa80be53cbf3b0aa166e54 (diff) | |
download | linux-fsl-qoriq-3a32a8e96694a243ec7e7feb6d76dfc4b1fe90c1.tar.xz |
libata-acpi: clean up parameters and misc stuff
This patch cleans up libata-acpi such that it looks similar to other
libata files. This patch doesn't introuce any behavior changes.
* make libata-acpi functions take ata_device instead of ata_port +
device index
* s/atadev/dev/
* de-indent local variable declarations
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/libata-acpi.c')
-rw-r--r-- | drivers/ata/libata-acpi.c | 192 |
1 files changed, 95 insertions, 97 deletions
diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index cb3eab6e..ed4138e 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -270,8 +270,7 @@ out: /** * do_drive_get_GTF - get the drive bootup default taskfile settings - * @ap: the ata_port for the drive - * @ix: target ata_device (drive) index + * @dev: target ATA device * @gtf_length: number of bytes of _GTF data returned at @gtf_address * @gtf_address: buffer containing _GTF taskfile arrays * @@ -286,20 +285,19 @@ out: * The returned @gtf_length and @gtf_address are only valid if the * function return value is 0. */ -static int do_drive_get_GTF(struct ata_port *ap, int ix, - unsigned int *gtf_length, unsigned long *gtf_address, - unsigned long *obj_loc) +static int do_drive_get_GTF(struct ata_device *dev, unsigned int *gtf_length, + unsigned long *gtf_address, unsigned long *obj_loc) { - acpi_status status; - acpi_handle dev_handle = NULL; - acpi_handle chan_handle, drive_handle; - acpi_integer pcidevfn = 0; - u32 dev_adr; - struct acpi_buffer output; - union acpi_object *out_obj; - struct device *dev = ap->host->dev; - struct ata_device *atadev = &ap->device[ix]; - int err = -ENODEV; + struct ata_port *ap = dev->ap; + acpi_status status; + acpi_handle dev_handle = NULL; + acpi_handle chan_handle, drive_handle; + acpi_integer pcidevfn = 0; + u32 dev_adr; + struct acpi_buffer output; + union acpi_object *out_obj; + struct device *gdev = ap->host->dev; + int err = -ENODEV; *gtf_length = 0; *gtf_address = 0UL; @@ -309,14 +307,14 @@ static int do_drive_get_GTF(struct ata_port *ap, int ix, return 0; if (ata_msg_probe(ap)) - ata_dev_printk(atadev, KERN_DEBUG, "%s: ENTER: port#: %d\n", + ata_dev_printk(dev, KERN_DEBUG, "%s: ENTER: port#: %d\n", __FUNCTION__, ap->port_no); - if (!ata_dev_enabled(atadev) || (ap->flags & ATA_FLAG_DISABLED)) { + if (!ata_dev_enabled(dev) || (ap->flags & ATA_FLAG_DISABLED)) { if (ata_msg_probe(ap)) - ata_dev_printk(atadev, KERN_DEBUG, "%s: ERR: " + ata_dev_printk(dev, KERN_DEBUG, "%s: ERR: " "ata_dev_present: %d, PORT_DISABLED: %lu\n", - __FUNCTION__, ata_dev_enabled(atadev), + __FUNCTION__, ata_dev_enabled(dev), ap->flags & ATA_FLAG_DISABLED); goto out; } @@ -324,19 +322,19 @@ static int do_drive_get_GTF(struct ata_port *ap, int ix, /* Don't continue if device has no _ADR method. * _GTF is intended for known motherboard devices. */ if (!(ap->cbl == ATA_CBL_SATA)) { - err = pata_get_dev_handle(dev, &dev_handle, &pcidevfn); + err = pata_get_dev_handle(gdev, &dev_handle, &pcidevfn); if (err < 0) { if (ata_msg_probe(ap)) - ata_dev_printk(atadev, KERN_DEBUG, + ata_dev_printk(dev, KERN_DEBUG, "%s: pata_get_dev_handle failed (%d)\n", __FUNCTION__, err); goto out; } } else { - err = sata_get_dev_handle(dev, &dev_handle, &pcidevfn); + err = sata_get_dev_handle(gdev, &dev_handle, &pcidevfn); if (err < 0) { if (ata_msg_probe(ap)) - ata_dev_printk(atadev, KERN_DEBUG, + ata_dev_printk(dev, KERN_DEBUG, "%s: sata_get_dev_handle failed (%d\n", __FUNCTION__, err); goto out; @@ -344,7 +342,7 @@ static int do_drive_get_GTF(struct ata_port *ap, int ix, } /* Get this drive's _ADR info. if not already known. */ - if (!atadev->obj_handle) { + if (!dev->obj_handle) { if (!(ap->cbl == ATA_CBL_SATA)) { /* get child objects of dev_handle == channel objects, * + _their_ children == drive objects */ @@ -352,7 +350,7 @@ static int do_drive_get_GTF(struct ata_port *ap, int ix, chan_handle = acpi_get_child(dev_handle, ap->port_no); if (ata_msg_probe(ap)) - ata_dev_printk(atadev, KERN_DEBUG, + ata_dev_printk(dev, KERN_DEBUG, "%s: chan adr=%d: chan_handle=0x%p\n", __FUNCTION__, ap->port_no, chan_handle); @@ -361,26 +359,26 @@ static int do_drive_get_GTF(struct ata_port *ap, int ix, goto out; } /* TBD: could also check ACPI object VALID bits */ - drive_handle = acpi_get_child(chan_handle, ix); + drive_handle = acpi_get_child(chan_handle, dev->devno); if (!drive_handle) { err = -ENODEV; goto out; } - dev_adr = ix; - atadev->obj_handle = drive_handle; + dev_adr = dev->devno; + dev->obj_handle = drive_handle; } else { /* for SATA mode */ dev_adr = SATA_ADR_RSVD; - err = get_sata_adr(dev, dev_handle, pcidevfn, 0, - ap, atadev, &dev_adr); + err = get_sata_adr(gdev, dev_handle, pcidevfn, 0, + ap, dev, &dev_adr); } if (err < 0 || dev_adr == SATA_ADR_RSVD || - !atadev->obj_handle) { + !dev->obj_handle) { if (ata_msg_probe(ap)) - ata_dev_printk(atadev, KERN_DEBUG, + ata_dev_printk(dev, KERN_DEBUG, "%s: get_sata/pata_adr failed: " "err=%d, dev_adr=%u, obj_handle=0x%p\n", __FUNCTION__, err, dev_adr, - atadev->obj_handle); + dev->obj_handle); goto out; } } @@ -391,11 +389,11 @@ static int do_drive_get_GTF(struct ata_port *ap, int ix, /* _GTF has no input parameters */ err = -EIO; - status = acpi_evaluate_object(atadev->obj_handle, "_GTF", + status = acpi_evaluate_object(dev->obj_handle, "_GTF", NULL, &output); if (ACPI_FAILURE(status)) { if (ata_msg_probe(ap)) - ata_dev_printk(atadev, KERN_DEBUG, + ata_dev_printk(dev, KERN_DEBUG, "%s: Run _GTF error: status = 0x%x\n", __FUNCTION__, status); goto out; @@ -403,7 +401,7 @@ static int do_drive_get_GTF(struct ata_port *ap, int ix, if (!output.length || !output.pointer) { if (ata_msg_probe(ap)) - ata_dev_printk(atadev, KERN_DEBUG, "%s: Run _GTF: " + ata_dev_printk(dev, KERN_DEBUG, "%s: Run _GTF: " "length or ptr is NULL (0x%llx, 0x%p)\n", __FUNCTION__, (unsigned long long)output.length, @@ -416,7 +414,7 @@ static int do_drive_get_GTF(struct ata_port *ap, int ix, if (out_obj->type != ACPI_TYPE_BUFFER) { kfree(output.pointer); if (ata_msg_probe(ap)) - ata_dev_printk(atadev, KERN_DEBUG, "%s: Run _GTF: " + ata_dev_printk(dev, KERN_DEBUG, "%s: Run _GTF: " "error: expected object type of " " ACPI_TYPE_BUFFER, got 0x%x\n", __FUNCTION__, out_obj->type); @@ -427,7 +425,7 @@ static int do_drive_get_GTF(struct ata_port *ap, int ix, if (!out_obj->buffer.length || !out_obj->buffer.pointer || out_obj->buffer.length % REGS_PER_GTF) { if (ata_msg_drv(ap)) - ata_dev_printk(atadev, KERN_ERR, + ata_dev_printk(dev, KERN_ERR, "%s: unexpected GTF length (%d) or addr (0x%p)\n", __FUNCTION__, out_obj->buffer.length, out_obj->buffer.pointer); @@ -439,7 +437,7 @@ static int do_drive_get_GTF(struct ata_port *ap, int ix, *gtf_address = (unsigned long)out_obj->buffer.pointer; *obj_loc = (unsigned long)out_obj; if (ata_msg_probe(ap)) - ata_dev_printk(atadev, KERN_DEBUG, "%s: returning " + ata_dev_printk(dev, KERN_DEBUG, "%s: returning " "gtf_length=%d, gtf_address=0x%lx, obj_loc=0x%lx\n", __FUNCTION__, *gtf_length, *gtf_address, *obj_loc); err = 0; @@ -449,7 +447,7 @@ out: /** * taskfile_load_raw - send taskfile registers to host controller - * @ap: Port to which output is sent + * @dev: target ATA device * @gtf: raw ATA taskfile register set (0x1f1 - 0x1f7) * * Outputs ATA taskfile to standard ATA host controller using MMIO @@ -466,15 +464,15 @@ out: * LOCKING: TBD: * Inherited from caller. */ -static void taskfile_load_raw(struct ata_port *ap, - struct ata_device *atadev, - const struct taskfile_array *gtf) +static void taskfile_load_raw(struct ata_device *dev, + const struct taskfile_array *gtf) { + struct ata_port *ap = dev->ap; struct ata_taskfile tf; unsigned int err; if (ata_msg_probe(ap)) - ata_dev_printk(atadev, KERN_DEBUG, "%s: (0x1f1-1f7): hex: " + ata_dev_printk(dev, KERN_DEBUG, "%s: (0x1f1-1f7): hex: " "%02x %02x %02x %02x %02x %02x %02x\n", __FUNCTION__, gtf->tfa[0], gtf->tfa[1], gtf->tfa[2], @@ -485,7 +483,7 @@ static void taskfile_load_raw(struct ata_port *ap, && (gtf->tfa[6] == 0)) return; - ata_tf_init(atadev, &tf); + ata_tf_init(dev, &tf); /* convert gtf to tf */ tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE; /* TBD */ @@ -498,17 +496,16 @@ static void taskfile_load_raw(struct ata_port *ap, tf.device = gtf->tfa[5]; /* 0x1f6 */ tf.command = gtf->tfa[6]; /* 0x1f7 */ - err = ata_exec_internal(atadev, &tf, NULL, DMA_NONE, NULL, 0); + err = ata_exec_internal(dev, &tf, NULL, DMA_NONE, NULL, 0); if (err && ata_msg_probe(ap)) - ata_dev_printk(atadev, KERN_ERR, + ata_dev_printk(dev, KERN_ERR, "%s: ata_exec_internal failed: %u\n", __FUNCTION__, err); } /** * do_drive_set_taskfiles - write the drive taskfile settings from _GTF - * @ap: the ata_port for the drive - * @atadev: target ata_device + * @dev: target ATA device * @gtf_length: total number of bytes of _GTF taskfiles * @gtf_address: location of _GTF taskfile arrays * @@ -517,30 +514,31 @@ static void taskfile_load_raw(struct ata_port *ap, * Write {gtf_address, length gtf_length} in groups of * REGS_PER_GTF bytes. */ -static int do_drive_set_taskfiles(struct ata_port *ap, - struct ata_device *atadev, unsigned int gtf_length, - unsigned long gtf_address) +static int do_drive_set_taskfiles(struct ata_device *dev, + unsigned int gtf_length, + unsigned long gtf_address) { - int err = -ENODEV; - int gtf_count = gtf_length / REGS_PER_GTF; - int ix; + struct ata_port *ap = dev->ap; + int err = -ENODEV; + int gtf_count = gtf_length / REGS_PER_GTF; + int ix; struct taskfile_array *gtf; if (ata_msg_probe(ap)) - ata_dev_printk(atadev, KERN_DEBUG, "%s: ENTER: port#: %d\n", + ata_dev_printk(dev, KERN_DEBUG, "%s: ENTER: port#: %d\n", __FUNCTION__, ap->port_no); if (libata_noacpi || !(ap->cbl == ATA_CBL_SATA)) return 0; - if (!ata_dev_enabled(atadev) || (ap->flags & ATA_FLAG_DISABLED)) + if (!ata_dev_enabled(dev) || (ap->flags & ATA_FLAG_DISABLED)) goto out; if (!gtf_count) /* shouldn't be here */ goto out; if (gtf_length % REGS_PER_GTF) { if (ata_msg_drv(ap)) - ata_dev_printk(atadev, KERN_ERR, + ata_dev_printk(dev, KERN_ERR, "%s: unexpected GTF length (%d)\n", __FUNCTION__, gtf_length); goto out; @@ -551,7 +549,7 @@ static int do_drive_set_taskfiles(struct ata_port *ap, (gtf_address + ix * REGS_PER_GTF); /* send all TaskFile registers (0x1f1-0x1f7) *in*that*order* */ - taskfile_load_raw(ap, atadev, gtf); + taskfile_load_raw(dev, gtf); } err = 0; @@ -567,11 +565,11 @@ out: */ int ata_acpi_exec_tfs(struct ata_port *ap) { - int ix; - int ret =0; - unsigned int gtf_length; - unsigned long gtf_address; - unsigned long obj_loc; + int ix; + int ret = 0; + unsigned int gtf_length; + unsigned long gtf_address; + unsigned long obj_loc; if (libata_noacpi) return 0; @@ -584,11 +582,13 @@ int ata_acpi_exec_tfs(struct ata_port *ap) return 0; for (ix = 0; ix < ATA_MAX_DEVICES; ix++) { - if (!ata_dev_enabled(&ap->device[ix])) + struct ata_device *dev = &ap->device[ix]; + + if (!ata_dev_enabled(dev)) continue; - ret = do_drive_get_GTF(ap, ix, - >f_length, >f_address, &obj_loc); + ret = do_drive_get_GTF(dev, >f_length, >f_address, + &obj_loc); if (ret < 0) { if (ata_msg_probe(ap)) ata_port_printk(ap, KERN_DEBUG, @@ -597,8 +597,7 @@ int ata_acpi_exec_tfs(struct ata_port *ap) break; } - ret = do_drive_set_taskfiles(ap, &ap->device[ix], - gtf_length, gtf_address); + ret = do_drive_set_taskfiles(dev, gtf_length, gtf_address); kfree((void *)obj_loc); if (ret < 0) { if (ata_msg_probe(ap)) @@ -614,8 +613,7 @@ int ata_acpi_exec_tfs(struct ata_port *ap) /** * ata_acpi_push_id - send Identify data to drive - * @ap: the ata_port for the drive - * @ix: drive index + * @dev: target ATA device * * _SDD ACPI object: for SATA mode only * Must be after Identify (Packet) Device -- uses its data @@ -623,57 +621,57 @@ int ata_acpi_exec_tfs(struct ata_port *ap) * method and if it fails for whatever reason, we should still * just keep going. */ -int ata_acpi_push_id(struct ata_port *ap, unsigned int ix) +int ata_acpi_push_id(struct ata_device *dev) { - acpi_handle handle; - acpi_integer pcidevfn; - int err; - struct device *dev = ap->host->dev; - struct ata_device *atadev = &ap->device[ix]; - u32 dev_adr; - acpi_status status; - struct acpi_object_list input; - union acpi_object in_params[1]; + struct ata_port *ap = dev->ap; + acpi_handle handle; + acpi_integer pcidevfn; + int err; + struct device *gdev = ap->host->dev; + u32 dev_adr; + acpi_status status; + struct acpi_object_list input; + union acpi_object in_params[1]; if (libata_noacpi) return 0; if (ata_msg_probe(ap)) - ata_dev_printk(atadev, KERN_DEBUG, "%s: ix = %d, port#: %d\n", - __FUNCTION__, ix, ap->port_no); + ata_dev_printk(dev, KERN_DEBUG, "%s: ix = %d, port#: %d\n", + __FUNCTION__, dev->devno, ap->port_no); /* Don't continue if not a SATA device. */ if (!(ap->cbl == ATA_CBL_SATA)) { if (ata_msg_probe(ap)) - ata_dev_printk(atadev, KERN_DEBUG, + ata_dev_printk(dev, KERN_DEBUG, "%s: Not a SATA device\n", __FUNCTION__); goto out; } /* Don't continue if device has no _ADR method. * _SDD is intended for known motherboard devices. */ - err = sata_get_dev_handle(dev, &handle, &pcidevfn); + err = sata_get_dev_handle(gdev, &handle, &pcidevfn); if (err < 0) { if (ata_msg_probe(ap)) - ata_dev_printk(atadev, KERN_DEBUG, + ata_dev_printk(dev, KERN_DEBUG, "%s: sata_get_dev_handle failed (%d\n", __FUNCTION__, err); goto out; } /* Get this drive's _ADR info, if not already known */ - if (!atadev->obj_handle) { + if (!dev->obj_handle) { dev_adr = SATA_ADR_RSVD; - err = get_sata_adr(dev, handle, pcidevfn, ix, ap, atadev, + err = get_sata_adr(gdev, handle, pcidevfn, dev->devno, ap, dev, &dev_adr); if (err < 0 || dev_adr == SATA_ADR_RSVD || - !atadev->obj_handle) { + !dev->obj_handle) { if (ata_msg_probe(ap)) - ata_dev_printk(atadev, KERN_DEBUG, + ata_dev_printk(dev, KERN_DEBUG, "%s: get_sata_adr failed: " "err=%d, dev_adr=%u, obj_handle=0x%p\n", __FUNCTION__, err, dev_adr, - atadev->obj_handle); + dev->obj_handle); goto out; } } @@ -683,19 +681,19 @@ int ata_acpi_push_id(struct ata_port *ap, unsigned int ix) input.count = 1; input.pointer = in_params; in_params[0].type = ACPI_TYPE_BUFFER; - in_params[0].buffer.length = sizeof(atadev->id[0]) * ATA_ID_WORDS; - in_params[0].buffer.pointer = (u8 *)atadev->id; + in_params[0].buffer.length = sizeof(dev->id[0]) * ATA_ID_WORDS; + in_params[0].buffer.pointer = (u8 *)dev->id; /* Output buffer: _SDD has no output */ /* It's OK for _SDD to be missing too. */ - swap_buf_le16(atadev->id, ATA_ID_WORDS); - status = acpi_evaluate_object(atadev->obj_handle, "_SDD", &input, NULL); - swap_buf_le16(atadev->id, ATA_ID_WORDS); + swap_buf_le16(dev->id, ATA_ID_WORDS); + status = acpi_evaluate_object(dev->obj_handle, "_SDD", &input, NULL); + swap_buf_le16(dev->id, ATA_ID_WORDS); err = ACPI_FAILURE(status) ? -EIO : 0; if (err < 0) { if (ata_msg_probe(ap)) - ata_dev_printk(atadev, KERN_DEBUG, + ata_dev_printk(dev, KERN_DEBUG, "%s _SDD error: status = 0x%x\n", __FUNCTION__, status); } |