#include "libata.h"
+#define DRV_VERSION "2.10" /* must be exactly four chars */
+
+
/* debounce timing parameters in msecs { interval, duration, timeout } */
const unsigned long sata_deb_timing_normal[] = { 5, 100, 2000 };
const unsigned long sata_deb_timing_hotplug[] = { 25, 500, 2000 };
module_param(ata_probe_timeout, int, 0444);
MODULE_PARM_DESC(ata_probe_timeout, "Set ATA probing timeout (seconds)");
+int noacpi;
+module_param(noacpi, int, 0444);
+MODULE_PARM_DESC(noacpi, "Disables the use of ACPI in suspend/resume when set");
+
MODULE_AUTHOR("Jeff Garzik");
MODULE_DESCRIPTION("Library module for ATA devices");
MODULE_LICENSE("GPL");
}
/**
- * ata_pio_devchk - PATA device presence detection
- * @ap: ATA channel to examine
- * @device: Device to examine (starting at zero)
- *
- * This technique was originally described in
- * Hale Landis's ATADRVR (www.ata-atapi.com), and
- * later found its way into the ATA/ATAPI spec.
- *
- * Write a pattern to the ATA shadow registers,
- * and if a device is present, it will respond by
- * correctly storing and echoing back the
- * ATA shadow register contents.
- *
- * LOCKING:
- * caller.
- */
-
-static unsigned int ata_pio_devchk(struct ata_port *ap,
- unsigned int device)
-{
- struct ata_ioports *ioaddr = &ap->ioaddr;
- u8 nsect, lbal;
-
- ap->ops->dev_select(ap, device);
-
- outb(0x55, ioaddr->nsect_addr);
- outb(0xaa, ioaddr->lbal_addr);
-
- outb(0xaa, ioaddr->nsect_addr);
- outb(0x55, ioaddr->lbal_addr);
-
- outb(0x55, ioaddr->nsect_addr);
- outb(0xaa, ioaddr->lbal_addr);
-
- nsect = inb(ioaddr->nsect_addr);
- lbal = inb(ioaddr->lbal_addr);
-
- if ((nsect == 0x55) && (lbal == 0xaa))
- return 1; /* we found a device */
-
- return 0; /* nothing found */
-}
-
-/**
- * ata_mmio_devchk - PATA device presence detection
+ * ata_devchk - PATA device presence detection
* @ap: ATA channel to examine
* @device: Device to examine (starting at zero)
*
* caller.
*/
-static unsigned int ata_mmio_devchk(struct ata_port *ap,
- unsigned int device)
+static unsigned int ata_devchk(struct ata_port *ap, unsigned int device)
{
struct ata_ioports *ioaddr = &ap->ioaddr;
u8 nsect, lbal;
ap->ops->dev_select(ap, device);
- writeb(0x55, (void __iomem *) ioaddr->nsect_addr);
- writeb(0xaa, (void __iomem *) ioaddr->lbal_addr);
+ iowrite8(0x55, ioaddr->nsect_addr);
+ iowrite8(0xaa, ioaddr->lbal_addr);
- writeb(0xaa, (void __iomem *) ioaddr->nsect_addr);
- writeb(0x55, (void __iomem *) ioaddr->lbal_addr);
+ iowrite8(0xaa, ioaddr->nsect_addr);
+ iowrite8(0x55, ioaddr->lbal_addr);
- writeb(0x55, (void __iomem *) ioaddr->nsect_addr);
- writeb(0xaa, (void __iomem *) ioaddr->lbal_addr);
+ iowrite8(0x55, ioaddr->nsect_addr);
+ iowrite8(0xaa, ioaddr->lbal_addr);
- nsect = readb((void __iomem *) ioaddr->nsect_addr);
- lbal = readb((void __iomem *) ioaddr->lbal_addr);
+ nsect = ioread8(ioaddr->nsect_addr);
+ lbal = ioread8(ioaddr->lbal_addr);
if ((nsect == 0x55) && (lbal == 0xaa))
return 1; /* we found a device */
return 0; /* nothing found */
}
-/**
- * ata_devchk - PATA device presence detection
- * @ap: ATA channel to examine
- * @device: Device to examine (starting at zero)
- *
- * Dispatch ATA device presence detection, depending
- * on whether we are using PIO or MMIO to talk to the
- * ATA shadow registers.
- *
- * LOCKING:
- * caller.
- */
-
-static unsigned int ata_devchk(struct ata_port *ap,
- unsigned int device)
-{
- if (ap->flags & ATA_FLAG_MMIO)
- return ata_mmio_devchk(ap, device);
- return ata_pio_devchk(ap, device);
-}
-
/**
* ata_dev_classify - determine device type based on ATA-spec signature
* @tf: ATA taskfile register set for device to be identified
else
tmp = ATA_DEVICE_OBS | ATA_DEV1;
- if (ap->flags & ATA_FLAG_MMIO) {
- writeb(tmp, (void __iomem *) ap->ioaddr.device_addr);
- } else {
- outb(tmp, ap->ioaddr.device_addr);
- }
+ iowrite8(tmp, ap->ioaddr.device_addr);
ata_pause(ap); /* needed; also flushes, for mmio */
}
* the PIO timing number for the maximum. Turn it into
* a mask.
*/
- u8 mode = id[ATA_ID_OLD_PIO_MODES] & 0xFF;
+ u8 mode = (id[ATA_ID_OLD_PIO_MODES] >> 8) & 0xFF;
if (mode < 5) /* Valid PIO range */
pio_mask = (2 << mode) - 1;
else
ata_port_printk(ap, KERN_DEBUG, "%s: EXIT\n", __FUNCTION__);
}
-void ata_qc_complete_internal(struct ata_queued_cmd *qc)
+static void ata_qc_complete_internal(struct ata_queued_cmd *qc)
{
struct completion *waiting = qc->private_data;
buflen += sg[i].length;
ata_sg_init(qc, sg, n_elem);
- qc->nsect = buflen / ATA_SECT_SIZE;
+ qc->nbytes = buflen;
}
qc->private_data = &wait;
if (ap->ops->post_internal_cmd)
ap->ops->post_internal_cmd(qc);
- if (qc->flags & ATA_QCFLAG_FAILED && !qc->err_mask) {
+ if ((qc->flags & ATA_QCFLAG_FAILED) && !qc->err_mask) {
if (ata_msg_warn(ap))
ata_dev_printk(dev, KERN_WARNING,
"zero err_mask for failed "
}
tf.protocol = ATA_PROT_PIO;
- tf.flags |= ATA_TFLAG_POLLING; /* for polling presence detection */
+
+ /* Some devices choke if TF registers contain garbage. Make
+ * sure those are properly initialized.
+ */
+ tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
+
+ /* Device presence detection is unreliable on some
+ * controllers. Always poll IDENTIFY if available.
+ */
+ tf.flags |= ATA_TFLAG_POLLING;
err_mask = ata_exec_internal(dev, &tf, NULL, DMA_FROM_DEVICE,
id, sizeof(id[0]) * ATA_ID_WORDS);
const u16 *id = dev->id;
unsigned int xfer_mask;
char revbuf[7]; /* XYZ-99\0 */
+ char fwrevbuf[ATA_ID_FW_REV_LEN+1];
+ char modelbuf[ATA_ID_PROD_LEN+1];
int rc;
if (!ata_dev_enabled(dev) && ata_msg_info(ap)) {
ata_dev_printk(dev, KERN_DEBUG, "%s: ENTER, host %u, dev %u\n",
__FUNCTION__, ap->id, dev->devno);
+ /* set _SDD */
+ rc = ata_acpi_push_id(ap, dev->devno);
+ if (rc) {
+ ata_dev_printk(dev, KERN_WARNING, "failed to set _SDD(%d)\n",
+ rc);
+ }
+
+ /* retrieve and execute the ATA task file of _GTF */
+ ata_acpi_exec_tfs(ap);
+
/* print device capabilities */
if (ata_msg_probe(ap))
ata_dev_printk(dev, KERN_DEBUG,
dev->n_sectors = ata_id_n_sectors(id);
+ /* SCSI only uses 4-char revisions, dump full 8 chars from ATA */
+ ata_id_c_string(dev->id, fwrevbuf, ATA_ID_FW_REV,
+ sizeof(fwrevbuf));
+
+ ata_id_c_string(dev->id, modelbuf, ATA_ID_PROD,
+ sizeof(modelbuf));
+
+ if (dev->id[59] & 0x100)
+ dev->multi_count = dev->id[59] & 0xff;
+
if (ata_id_has_lba(id)) {
const char *lba_desc;
char ncq_desc[20];
ata_dev_config_ncq(dev, ncq_desc, sizeof(ncq_desc));
/* print device info to dmesg */
- if (ata_msg_drv(ap) && print_info)
- ata_dev_printk(dev, KERN_INFO, "%s, "
- "max %s, %Lu sectors: %s %s\n",
- revbuf,
- ata_mode_string(xfer_mask),
+ if (ata_msg_drv(ap) && print_info) {
+ ata_dev_printk(dev, KERN_INFO,
+ "%s: %s, %s, max %s\n",
+ revbuf, modelbuf, fwrevbuf,
+ ata_mode_string(xfer_mask));
+ ata_dev_printk(dev, KERN_INFO,
+ "%Lu sectors, multi %u: %s %s\n",
(unsigned long long)dev->n_sectors,
- lba_desc, ncq_desc);
+ dev->multi_count, lba_desc, ncq_desc);
+ }
} else {
/* CHS */
}
/* print device info to dmesg */
- if (ata_msg_drv(ap) && print_info)
- ata_dev_printk(dev, KERN_INFO, "%s, "
- "max %s, %Lu sectors: CHS %u/%u/%u\n",
- revbuf,
- ata_mode_string(xfer_mask),
- (unsigned long long)dev->n_sectors,
- dev->cylinders, dev->heads,
- dev->sectors);
- }
-
- if (dev->id[59] & 0x100) {
- dev->multi_count = dev->id[59] & 0xff;
- if (ata_msg_drv(ap) && print_info)
+ if (ata_msg_drv(ap) && print_info) {
ata_dev_printk(dev, KERN_INFO,
- "ata%u: dev %u multi count %u\n",
- ap->id, dev->devno, dev->multi_count);
+ "%s: %s, %s, max %s\n",
+ revbuf, modelbuf, fwrevbuf,
+ ata_mode_string(xfer_mask));
+ ata_dev_printk(dev, KERN_INFO,
+ "%Lu sectors, multi %u, CHS %u/%u/%u\n",
+ (unsigned long long)dev->n_sectors,
+ dev->multi_count, dev->cylinders,
+ dev->heads, dev->sectors);
+ }
}
dev->cdb_len = 16;
dev->flags |= ATA_DFLAG_PIO;
err_mask = ata_dev_set_xfermode(dev);
+ /* Old CFA may refuse this command, which is just fine */
+ if (dev->xfer_shift == ATA_SHIFT_PIO && ata_id_is_cfa(dev->id))
+ err_mask &= ~AC_ERR_DEV;
+
if (err_mask) {
ata_dev_printk(dev, KERN_ERR, "failed to set xfermode "
"(err_mask=0x%x)\n", err_mask);
for (i = 0; i < ATA_MAX_DEVICES; i++) {
dev = &ap->device[i];
- /* don't udpate suspended devices' xfer mode */
+ /* don't update suspended devices' xfer mode */
if (!ata_dev_ready(dev))
continue;
u8 nsect, lbal;
ap->ops->dev_select(ap, 1);
- if (ap->flags & ATA_FLAG_MMIO) {
- nsect = readb((void __iomem *) ioaddr->nsect_addr);
- lbal = readb((void __iomem *) ioaddr->lbal_addr);
- } else {
- nsect = inb(ioaddr->nsect_addr);
- lbal = inb(ioaddr->lbal_addr);
- }
+ nsect = ioread8(ioaddr->nsect_addr);
+ lbal = ioread8(ioaddr->lbal_addr);
if ((nsect == 1) && (lbal == 1))
break;
if (time_after(jiffies, timeout)) {
DPRINTK("ata%u: bus reset via SRST\n", ap->id);
/* software reset. causes dev0 to be selected */
- if (ap->flags & ATA_FLAG_MMIO) {
- writeb(ap->ctl, (void __iomem *) ioaddr->ctl_addr);
- udelay(20); /* FIXME: flush */
- writeb(ap->ctl | ATA_SRST, (void __iomem *) ioaddr->ctl_addr);
- udelay(20); /* FIXME: flush */
- writeb(ap->ctl, (void __iomem *) ioaddr->ctl_addr);
- } else {
- outb(ap->ctl, ioaddr->ctl_addr);
- udelay(10);
- outb(ap->ctl | ATA_SRST, ioaddr->ctl_addr);
- udelay(10);
- outb(ap->ctl, ioaddr->ctl_addr);
- }
+ iowrite8(ap->ctl, ioaddr->ctl_addr);
+ udelay(20); /* FIXME: flush */
+ iowrite8(ap->ctl | ATA_SRST, ioaddr->ctl_addr);
+ udelay(20); /* FIXME: flush */
+ iowrite8(ap->ctl, ioaddr->ctl_addr);
/* spec mandates ">= 2ms" before checking status.
* We wait 150ms, because that was the magic delay used for
ap->device[1].class = ata_dev_try_classify(ap, 1, &err);
/* re-enable interrupts */
- if (ap->ioaddr.ctl_addr) /* FIXME: hack. create a hook instead */
- ata_irq_on(ap);
+ ap->ops->irq_on(ap);
/* is double-select really necessary? */
if (ap->device[1].class != ATA_DEV_NONE)
if (ap->flags & (ATA_FLAG_SATA_RESET | ATA_FLAG_SRST)) {
/* set up device control for ATA_FLAG_SATA_RESET */
- if (ap->flags & ATA_FLAG_MMIO)
- writeb(ap->ctl, (void __iomem *) ioaddr->ctl_addr);
- else
- outb(ap->ctl, ioaddr->ctl_addr);
+ iowrite8(ap->ctl, ioaddr->ctl_addr);
}
DPRINTK("EXIT\n");
return 0;
}
+ /* wait a while before checking status, see SRST for more info */
+ msleep(150);
+
if (ata_busy_sleep(ap, ATA_TMOUT_BOOT_QUICK, ATA_TMOUT_BOOT)) {
ata_port_printk(ap, KERN_ERR,
"COMRESET failed (device not ready)\n");
sata_scr_write(ap, SCR_ERROR, serror);
/* re-enable interrupts */
- if (!ap->ops->error_handler) {
- /* FIXME: hack. create a hook instead */
- if (ap->ioaddr.ctl_addr)
- ata_irq_on(ap);
- }
+ if (!ap->ops->error_handler)
+ ap->ops->irq_on(ap);
/* is double-select really necessary? */
if (classes[0] != ATA_DEV_NONE)
}
/* set up device control */
- if (ap->ioaddr.ctl_addr) {
- if (ap->flags & ATA_FLAG_MMIO)
- writeb(ap->ctl, (void __iomem *) ap->ioaddr.ctl_addr);
- else
- outb(ap->ctl, ap->ioaddr.ctl_addr);
- }
+ if (ap->ioaddr.ctl_addr)
+ iowrite8(ap->ctl, ap->ioaddr.ctl_addr);
DPRINTK("EXIT\n");
}
const u16 *new_id)
{
const u16 *old_id = dev->id;
- unsigned char model[2][41], serial[2][21];
+ unsigned char model[2][ATA_ID_PROD_LEN + 1];
+ unsigned char serial[2][ATA_ID_SERNO_LEN + 1];
u64 new_n_sectors;
if (dev->class != new_class) {
return 0;
}
- ata_id_c_string(old_id, model[0], ATA_ID_PROD_OFS, sizeof(model[0]));
- ata_id_c_string(new_id, model[1], ATA_ID_PROD_OFS, sizeof(model[1]));
- ata_id_c_string(old_id, serial[0], ATA_ID_SERNO_OFS, sizeof(serial[0]));
- ata_id_c_string(new_id, serial[1], ATA_ID_SERNO_OFS, sizeof(serial[1]));
+ ata_id_c_string(old_id, model[0], ATA_ID_PROD, sizeof(model[0]));
+ ata_id_c_string(new_id, model[1], ATA_ID_PROD, sizeof(model[1]));
+ ata_id_c_string(old_id, serial[0], ATA_ID_SERNO, sizeof(serial[0]));
+ ata_id_c_string(new_id, serial[1], ATA_ID_SERNO, sizeof(serial[1]));
new_n_sectors = ata_id_n_sectors(new_id);
if (strcmp(model[0], model[1])) {
{ }
};
-static int ata_strim(char *s, size_t len)
-{
- len = strnlen(s, len);
-
- /* ATAPI specifies that empty space is blank-filled; remove blanks */
- while ((len > 0) && (s[len - 1] == ' ')) {
- len--;
- s[len] = 0;
- }
- return len;
-}
-
unsigned long ata_device_blacklisted(const struct ata_device *dev)
{
- unsigned char model_num[40];
- unsigned char model_rev[16];
- unsigned int nlen, rlen;
+ unsigned char model_num[ATA_ID_PROD_LEN + 1];
+ unsigned char model_rev[ATA_ID_FW_REV_LEN + 1];
const struct ata_blacklist_entry *ad = ata_device_blacklist;
- ata_id_string(dev->id, model_num, ATA_ID_PROD_OFS,
- sizeof(model_num));
- ata_id_string(dev->id, model_rev, ATA_ID_FW_REV_OFS,
- sizeof(model_rev));
- nlen = ata_strim(model_num, sizeof(model_num));
- rlen = ata_strim(model_rev, sizeof(model_rev));
+ ata_id_c_string(dev->id, model_num, ATA_ID_PROD, sizeof(model_num));
+ ata_id_c_string(dev->id, model_rev, ATA_ID_FW_REV, sizeof(model_rev));
while (ad->model_num) {
- if (!strncmp(ad->model_num, model_num, nlen)) {
+ if (!strcmp(ad->model_num, model_num)) {
if (ad->model_rev == NULL)
return ad->horkage;
- if (!strncmp(ad->model_rev, model_rev, rlen))
+ if (!strcmp(ad->model_rev, model_rev))
return ad->horkage;
}
ad++;
}
/**
- * ata_mmio_data_xfer - Transfer data by MMIO
- * @adev: device for this I/O
- * @buf: data buffer
- * @buflen: buffer length
- * @write_data: read/write
- *
- * Transfer data from/to the device data register by MMIO.
- *
- * LOCKING:
- * Inherited from caller.
- */
-
-void ata_mmio_data_xfer(struct ata_device *adev, unsigned char *buf,
- unsigned int buflen, int write_data)
-{
- struct ata_port *ap = adev->ap;
- unsigned int i;
- unsigned int words = buflen >> 1;
- u16 *buf16 = (u16 *) buf;
- void __iomem *mmio = (void __iomem *)ap->ioaddr.data_addr;
-
- /* Transfer multiple of 2 bytes */
- if (write_data) {
- for (i = 0; i < words; i++)
- writew(le16_to_cpu(buf16[i]), mmio);
- } else {
- for (i = 0; i < words; i++)
- buf16[i] = cpu_to_le16(readw(mmio));
- }
-
- /* Transfer trailing 1 byte, if any. */
- if (unlikely(buflen & 0x01)) {
- u16 align_buf[1] = { 0 };
- unsigned char *trailing_buf = buf + buflen - 1;
-
- if (write_data) {
- memcpy(align_buf, trailing_buf, 1);
- writew(le16_to_cpu(align_buf[0]), mmio);
- } else {
- align_buf[0] = cpu_to_le16(readw(mmio));
- memcpy(trailing_buf, align_buf, 1);
- }
- }
-}
-
-/**
- * ata_pio_data_xfer - Transfer data by PIO
+ * ata_data_xfer - Transfer data by PIO
* @adev: device to target
* @buf: data buffer
* @buflen: buffer length
* LOCKING:
* Inherited from caller.
*/
-
-void ata_pio_data_xfer(struct ata_device *adev, unsigned char *buf,
- unsigned int buflen, int write_data)
+void ata_data_xfer(struct ata_device *adev, unsigned char *buf,
+ unsigned int buflen, int write_data)
{
struct ata_port *ap = adev->ap;
unsigned int words = buflen >> 1;
/* Transfer multiple of 2 bytes */
if (write_data)
- outsw(ap->ioaddr.data_addr, buf, words);
+ iowrite16_rep(ap->ioaddr.data_addr, buf, words);
else
- insw(ap->ioaddr.data_addr, buf, words);
+ ioread16_rep(ap->ioaddr.data_addr, buf, words);
/* Transfer trailing 1 byte, if any. */
if (unlikely(buflen & 0x01)) {
if (write_data) {
memcpy(align_buf, trailing_buf, 1);
- outw(le16_to_cpu(align_buf[0]), ap->ioaddr.data_addr);
+ iowrite16(le16_to_cpu(align_buf[0]), ap->ioaddr.data_addr);
} else {
- align_buf[0] = cpu_to_le16(inw(ap->ioaddr.data_addr));
+ align_buf[0] = cpu_to_le16(ioread16(ap->ioaddr.data_addr));
memcpy(trailing_buf, align_buf, 1);
}
}
}
/**
- * ata_pio_data_xfer_noirq - Transfer data by PIO
+ * ata_data_xfer_noirq - Transfer data by PIO
* @adev: device to target
* @buf: data buffer
* @buflen: buffer length
* LOCKING:
* Inherited from caller.
*/
-
-void ata_pio_data_xfer_noirq(struct ata_device *adev, unsigned char *buf,
- unsigned int buflen, int write_data)
+void ata_data_xfer_noirq(struct ata_device *adev, unsigned char *buf,
+ unsigned int buflen, int write_data)
{
unsigned long flags;
local_irq_save(flags);
- ata_pio_data_xfer(adev, buf, buflen, write_data);
+ ata_data_xfer(adev, buf, buflen, write_data);
local_irq_restore(flags);
}
unsigned int offset;
unsigned char *buf;
- if (qc->cursect == (qc->nsect - 1))
+ if (qc->curbytes == qc->nbytes - ATA_SECT_SIZE)
ap->hsm_task_state = HSM_ST_LAST;
page = sg[qc->cursg].page;
- offset = sg[qc->cursg].offset + qc->cursg_ofs * ATA_SECT_SIZE;
+ offset = sg[qc->cursg].offset + qc->cursg_ofs;
/* get the current page and offset */
page = nth_page(page, (offset >> PAGE_SHIFT));
ap->ops->data_xfer(qc->dev, buf + offset, ATA_SECT_SIZE, do_write);
}
- qc->cursect++;
- qc->cursg_ofs++;
+ qc->curbytes += ATA_SECT_SIZE;
+ qc->cursg_ofs += ATA_SECT_SIZE;
- if ((qc->cursg_ofs * ATA_SECT_SIZE) == (&sg[qc->cursg])->length) {
+ if (qc->cursg_ofs == (&sg[qc->cursg])->length) {
qc->cursg++;
qc->cursg_ofs = 0;
}
WARN_ON(qc->dev->multi_count == 0);
- nsect = min(qc->nsect - qc->cursect, qc->dev->multi_count);
+ nsect = min((qc->nbytes - qc->curbytes) / ATA_SECT_SIZE,
+ qc->dev->multi_count);
while (nsect--)
ata_pio_sector(qc);
} else
qc = ata_qc_from_tag(ap, qc->tag);
if (qc) {
if (likely(!(qc->err_mask & AC_ERR_HSM))) {
- ata_irq_on(ap);
+ ap->ops->irq_on(ap);
ata_qc_complete(qc);
} else
ata_port_freeze(ap);
} else {
if (in_wq) {
spin_lock_irqsave(ap->lock, flags);
- ata_irq_on(ap);
+ ap->ops->irq_on(ap);
ata_qc_complete(qc);
spin_unlock_irqrestore(ap->lock, flags);
} else
#ifdef ATA_IRQ_TRAP
if ((ap->stats.idle_irq % 1000) == 0) {
- ata_irq_ack(ap, 0); /* debug trap */
+ ap->ops->irq_ack(ap, 0); /* debug trap */
ata_port_printk(ap, KERN_WARNING, "irq trap\n");
return 1;
}
* LOCKING:
* Inherited from caller.
*/
-
-int ata_port_start (struct ata_port *ap)
+int ata_port_start(struct ata_port *ap)
{
struct device *dev = ap->dev;
int rc;
- ap->prd = dma_alloc_coherent(dev, ATA_PRD_TBL_SZ, &ap->prd_dma, GFP_KERNEL);
+ ap->prd = dmam_alloc_coherent(dev, ATA_PRD_TBL_SZ, &ap->prd_dma,
+ GFP_KERNEL);
if (!ap->prd)
return -ENOMEM;
rc = ata_pad_alloc(ap, dev);
- if (rc) {
- dma_free_coherent(dev, ATA_PRD_TBL_SZ, ap->prd, ap->prd_dma);
+ if (rc)
return rc;
- }
-
- DPRINTK("prd alloc, virt %p, dma %llx\n", ap->prd, (unsigned long long) ap->prd_dma);
+ DPRINTK("prd alloc, virt %p, dma %llx\n", ap->prd,
+ (unsigned long long)ap->prd_dma);
return 0;
}
-
-/**
- * ata_port_stop - Undo ata_port_start()
- * @ap: Port to shut down
- *
- * Frees the PRD table.
- *
- * May be used as the port_stop() entry in ata_port_operations.
- *
- * LOCKING:
- * Inherited from caller.
- */
-
-void ata_port_stop (struct ata_port *ap)
-{
- struct device *dev = ap->dev;
-
- dma_free_coherent(dev, ATA_PRD_TBL_SZ, ap->prd, ap->prd_dma);
- ata_pad_free(ap, dev);
-}
-
-void ata_host_stop (struct ata_host *host)
-{
- if (host->mmio_base)
- iounmap(host->mmio_base);
-}
-
/**
* ata_dev_init - Initialize an ata_device structure
* @dev: Device structure to initialize
return ap;
}
+static void ata_host_release(struct device *gendev, void *res)
+{
+ struct ata_host *host = dev_get_drvdata(gendev);
+ int i;
+
+ for (i = 0; i < host->n_ports; i++) {
+ struct ata_port *ap = host->ports[i];
+
+ if (!ap)
+ continue;
+
+ if (ap->ops->port_stop)
+ ap->ops->port_stop(ap);
+
+ scsi_host_put(ap->scsi_host);
+ }
+
+ if (host->ops->host_stop)
+ host->ops->host_stop(host);
+}
+
/**
* ata_sas_host_init - Initialize a host struct
* @host: host to initialize
int rc;
DPRINTK("ENTER\n");
-
+
if (ent->irq == 0) {
dev_printk(KERN_ERR, dev, "is not available: No interrupt assigned.\n");
return 0;
}
+
+ if (!devres_open_group(dev, ata_device_add, GFP_KERNEL))
+ return 0;
+
/* alloc a container for our list of ATA ports (buses) */
- host = kzalloc(sizeof(struct ata_host) +
- (ent->n_ports * sizeof(void *)), GFP_KERNEL);
+ host = devres_alloc(ata_host_release, sizeof(struct ata_host) +
+ (ent->n_ports * sizeof(void *)), GFP_KERNEL);
if (!host)
- return 0;
+ goto err_out;
+ devres_add(dev, host);
+ dev_set_drvdata(dev, host);
ata_host_init(host, dev, ent->_host_flags, ent->port_ops);
host->n_ports = ent->n_ports;
host->irq = ent->irq;
host->irq2 = ent->irq2;
- host->mmio_base = ent->mmio_base;
+ host->iomap = ent->iomap;
host->private_data = ent->private_data;
/* register each port bound to this device */
(ap->pio_mask << ATA_SHIFT_PIO);
/* print per-port info to dmesg */
- ata_port_printk(ap, KERN_INFO, "%cATA max %s cmd 0x%lX "
- "ctl 0x%lX bmdma 0x%lX irq %d\n",
+ ata_port_printk(ap, KERN_INFO, "%cATA max %s cmd 0x%p "
+ "ctl 0x%p bmdma 0x%p irq %d\n",
ap->flags & ATA_FLAG_SATA ? 'S' : 'P',
ata_mode_string(xfer_mode_mask),
ap->ioaddr.cmd_addr,
}
/* obtain irq, that may be shared between channels */
- rc = request_irq(ent->irq, ent->port_ops->irq_handler, ent->irq_flags,
- DRV_NAME, host);
+ rc = devm_request_irq(dev, ent->irq, ent->port_ops->irq_handler,
+ ent->irq_flags, DRV_NAME, host);
if (rc) {
dev_printk(KERN_ERR, dev, "irq %lu request failed: %d\n",
ent->irq, rc);
so trap it now */
BUG_ON(ent->irq == ent->irq2);
- rc = request_irq(ent->irq2, ent->port_ops->irq_handler, ent->irq_flags,
- DRV_NAME, host);
+ rc = devm_request_irq(dev, ent->irq2,
+ ent->port_ops->irq_handler, ent->irq_flags,
+ DRV_NAME, host);
if (rc) {
dev_printk(KERN_ERR, dev, "irq %lu request failed: %d\n",
ent->irq2, rc);
- goto err_out_free_irq;
+ goto err_out;
}
}
+ /* resource acquisition complete */
+ devres_remove_group(dev, ata_device_add);
+
/* perform each probe synchronously */
DPRINTK("probe begin\n");
for (i = 0; i < host->n_ports; i++) {
ata_scsi_scan_host(ap);
}
- dev_set_drvdata(dev, host);
-
VPRINTK("EXIT, returning %u\n", ent->n_ports);
return ent->n_ports; /* success */
-err_out_free_irq:
- free_irq(ent->irq, host);
-err_out:
- for (i = 0; i < host->n_ports; i++) {
- struct ata_port *ap = host->ports[i];
- if (ap) {
- ap->ops->port_stop(ap);
- scsi_host_put(ap->scsi_host);
- }
- }
-
- kfree(host);
- VPRINTK("EXIT, returning 0\n");
+ err_out:
+ devres_release_group(dev, ata_device_add);
+ dev_set_drvdata(dev, NULL);
+ VPRINTK("EXIT, returning %d\n", rc);
return 0;
}
}
/**
- * ata_host_remove - PCI layer callback for device removal
- * @host: ATA host set that was removed
+ * ata_host_detach - Detach all ports of an ATA host
+ * @host: Host to detach
*
- * Unregister all objects associated with this host set. Free those
- * objects.
+ * Detach all ports of @host.
*
* LOCKING:
- * Inherited from calling layer (may sleep).
+ * Kernel thread context (may sleep).
*/
-
-void ata_host_remove(struct ata_host *host)
+void ata_host_detach(struct ata_host *host)
{
- unsigned int i;
+ int i;
for (i = 0; i < host->n_ports; i++)
ata_port_detach(host->ports[i]);
-
- free_irq(host->irq, host);
- if (host->irq2)
- free_irq(host->irq2, host);
-
- for (i = 0; i < host->n_ports; i++) {
- struct ata_port *ap = host->ports[i];
-
- ata_scsi_release(ap->scsi_host);
-
- if ((ap->flags & ATA_FLAG_NO_LEGACY) == 0) {
- struct ata_ioports *ioaddr = &ap->ioaddr;
-
- /* FIXME: Add -ac IDE pci mods to remove these special cases */
- if (ioaddr->cmd_addr == ATA_PRIMARY_CMD)
- release_region(ATA_PRIMARY_CMD, 8);
- else if (ioaddr->cmd_addr == ATA_SECONDARY_CMD)
- release_region(ATA_SECONDARY_CMD, 8);
- }
-
- scsi_host_put(ap->scsi_host);
- }
-
- if (host->ops->host_stop)
- host->ops->host_stop(host);
-
- kfree(host);
-}
-
-/**
- * ata_scsi_release - SCSI layer callback hook for host unload
- * @shost: libata host to be unloaded
- *
- * Performs all duties necessary to shut down a libata port...
- * Kill port kthread, disable port, and release resources.
- *
- * LOCKING:
- * Inherited from SCSI layer.
- *
- * RETURNS:
- * One.
- */
-
-int ata_scsi_release(struct Scsi_Host *shost)
-{
- struct ata_port *ap = ata_shost_to_port(shost);
-
- DPRINTK("ENTER\n");
-
- ap->ops->port_disable(ap);
- ap->ops->port_stop(ap);
-
- DPRINTK("EXIT\n");
- return 1;
}
struct ata_probe_ent *
{
struct ata_probe_ent *probe_ent;
- probe_ent = kzalloc(sizeof(*probe_ent), GFP_KERNEL);
+ /* XXX - the following if can go away once all LLDs are managed */
+ if (!list_empty(&dev->devres_head))
+ probe_ent = devm_kzalloc(dev, sizeof(*probe_ent), GFP_KERNEL);
+ else
+ probe_ent = kzalloc(sizeof(*probe_ent), GFP_KERNEL);
if (!probe_ent) {
printk(KERN_ERR DRV_NAME "(%s): out of memory\n",
kobject_name(&(dev->kobj)));
#ifdef CONFIG_PCI
-void ata_pci_host_stop (struct ata_host *host)
-{
- struct pci_dev *pdev = to_pci_dev(host->dev);
-
- pci_iounmap(pdev, host->mmio_base);
-}
-
/**
* ata_pci_remove_one - PCI layer callback for device removal
* @pdev: PCI device that was removed
*
- * PCI layer indicates to libata via this hook that
- * hot-unplug or module unload event has occurred.
- * Handle this by unregistering all objects associated
- * with this PCI device. Free those objects. Then finally
- * release PCI resources and disable device.
+ * PCI layer indicates to libata via this hook that hot-unplug or
+ * module unload event has occurred. Detach all ports. Resource
+ * release is handled via devres.
*
* LOCKING:
* Inherited from PCI layer (may sleep).
*/
-
-void ata_pci_remove_one (struct pci_dev *pdev)
+void ata_pci_remove_one(struct pci_dev *pdev)
{
struct device *dev = pci_dev_to_dev(pdev);
struct ata_host *host = dev_get_drvdata(dev);
- ata_host_remove(host);
-
- pci_release_regions(pdev);
- pci_disable_device(pdev);
- dev_set_drvdata(dev, NULL);
+ ata_host_detach(host);
}
/* move to PCI subsystem */
}
}
-void ata_pci_device_do_resume(struct pci_dev *pdev)
+int ata_pci_device_do_resume(struct pci_dev *pdev)
{
+ int rc;
+
pci_set_power_state(pdev, PCI_D0);
pci_restore_state(pdev);
- pci_enable_device(pdev);
+
+ rc = pcim_enable_device(pdev);
+ if (rc) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "failed to enable device after resume (%d)\n", rc);
+ return rc;
+ }
+
pci_set_master(pdev);
+ return 0;
}
int ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
int ata_pci_device_resume(struct pci_dev *pdev)
{
struct ata_host *host = dev_get_drvdata(&pdev->dev);
+ int rc;
- ata_pci_device_do_resume(pdev);
- ata_host_resume(host);
- return 0;
+ rc = ata_pci_device_do_resume(pdev);
+ if (rc == 0)
+ ata_host_resume(host);
+ return rc;
}
#endif /* CONFIG_PCI */
EXPORT_SYMBOL_GPL(ata_std_ports);
EXPORT_SYMBOL_GPL(ata_host_init);
EXPORT_SYMBOL_GPL(ata_device_add);
-EXPORT_SYMBOL_GPL(ata_port_detach);
-EXPORT_SYMBOL_GPL(ata_host_remove);
+EXPORT_SYMBOL_GPL(ata_host_detach);
EXPORT_SYMBOL_GPL(ata_sg_init);
EXPORT_SYMBOL_GPL(ata_sg_init_one);
EXPORT_SYMBOL_GPL(ata_hsm_move);
EXPORT_SYMBOL_GPL(ata_altstatus);
EXPORT_SYMBOL_GPL(ata_exec_command);
EXPORT_SYMBOL_GPL(ata_port_start);
-EXPORT_SYMBOL_GPL(ata_port_stop);
-EXPORT_SYMBOL_GPL(ata_host_stop);
EXPORT_SYMBOL_GPL(ata_interrupt);
-EXPORT_SYMBOL_GPL(ata_mmio_data_xfer);
-EXPORT_SYMBOL_GPL(ata_pio_data_xfer);
-EXPORT_SYMBOL_GPL(ata_pio_data_xfer_noirq);
+EXPORT_SYMBOL_GPL(ata_data_xfer);
+EXPORT_SYMBOL_GPL(ata_data_xfer_noirq);
EXPORT_SYMBOL_GPL(ata_qc_prep);
EXPORT_SYMBOL_GPL(ata_noop_qc_prep);
EXPORT_SYMBOL_GPL(ata_bmdma_setup);
EXPORT_SYMBOL_GPL(ata_scsi_slave_config);
EXPORT_SYMBOL_GPL(ata_scsi_slave_destroy);
EXPORT_SYMBOL_GPL(ata_scsi_change_queue_depth);
-EXPORT_SYMBOL_GPL(ata_scsi_release);
EXPORT_SYMBOL_GPL(ata_host_intr);
EXPORT_SYMBOL_GPL(sata_scr_valid);
EXPORT_SYMBOL_GPL(sata_scr_read);
#ifdef CONFIG_PCI
EXPORT_SYMBOL_GPL(pci_test_config_bits);
-EXPORT_SYMBOL_GPL(ata_pci_host_stop);
EXPORT_SYMBOL_GPL(ata_pci_init_native_mode);
EXPORT_SYMBOL_GPL(ata_pci_init_one);
EXPORT_SYMBOL_GPL(ata_pci_remove_one);
EXPORT_SYMBOL_GPL(ata_eh_qc_complete);
EXPORT_SYMBOL_GPL(ata_eh_qc_retry);
EXPORT_SYMBOL_GPL(ata_do_eh);
+EXPORT_SYMBOL_GPL(ata_irq_on);
+EXPORT_SYMBOL_GPL(ata_dummy_irq_on);
+EXPORT_SYMBOL_GPL(ata_irq_ack);
+EXPORT_SYMBOL_GPL(ata_dummy_irq_ack);
git.openpandora.org / pandora-kernel.git / blobdiff