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Diffstat (limited to 'drivers/ata/libata-sff.c')
-rw-r--r--drivers/ata/libata-sff.c109
1 files changed, 56 insertions, 53 deletions
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 8544321293d4..04024a556660 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -51,13 +51,13 @@ const struct ata_port_operations ata_sff_port_ops = {
51 .error_handler = ata_sff_error_handler, 51 .error_handler = ata_sff_error_handler,
52 .post_internal_cmd = ata_sff_post_internal_cmd, 52 .post_internal_cmd = ata_sff_post_internal_cmd,
53 53
54 .dev_select = ata_sff_dev_select, 54 .sff_dev_select = ata_sff_dev_select,
55 .check_status = ata_sff_check_status, 55 .sff_check_status = ata_sff_check_status,
56 .tf_load = ata_sff_tf_load, 56 .sff_tf_load = ata_sff_tf_load,
57 .tf_read = ata_sff_tf_read, 57 .sff_tf_read = ata_sff_tf_read,
58 .exec_command = ata_sff_exec_command, 58 .sff_exec_command = ata_sff_exec_command,
59 .data_xfer = ata_sff_data_xfer, 59 .sff_data_xfer = ata_sff_data_xfer,
60 .irq_on = ata_sff_irq_on, 60 .sff_irq_on = ata_sff_irq_on,
61 61
62 .port_start = ata_sff_port_start, 62 .port_start = ata_sff_port_start,
63}; 63};
@@ -71,7 +71,7 @@ const struct ata_port_operations ata_bmdma_port_ops = {
71 .bmdma_start = ata_bmdma_start, 71 .bmdma_start = ata_bmdma_start,
72 .bmdma_stop = ata_bmdma_stop, 72 .bmdma_stop = ata_bmdma_stop,
73 .bmdma_status = ata_bmdma_status, 73 .bmdma_status = ata_bmdma_status,
74 .irq_clear = ata_sff_irq_clear, 74 .sff_irq_clear = ata_sff_irq_clear,
75}; 75};
76 76
77/** 77/**
@@ -245,8 +245,8 @@ u8 ata_sff_check_status(struct ata_port *ap)
245 */ 245 */
246u8 ata_sff_altstatus(struct ata_port *ap) 246u8 ata_sff_altstatus(struct ata_port *ap)
247{ 247{
248 if (ap->ops->check_altstatus) 248 if (ap->ops->sff_check_altstatus)
249 return ap->ops->check_altstatus(ap); 249 return ap->ops->sff_check_altstatus(ap);
250 250
251 return ioread8(ap->ioaddr.altstatus_addr); 251 return ioread8(ap->ioaddr.altstatus_addr);
252} 252}
@@ -290,7 +290,7 @@ int ata_sff_busy_sleep(struct ata_port *ap,
290 while (status != 0xff && (status & ATA_BUSY) && 290 while (status != 0xff && (status & ATA_BUSY) &&
291 time_before(jiffies, timeout)) { 291 time_before(jiffies, timeout)) {
292 msleep(50); 292 msleep(50);
293 status = ap->ops->check_status(ap); 293 status = ap->ops->sff_check_status(ap);
294 } 294 }
295 295
296 if (status == 0xff) 296 if (status == 0xff)
@@ -326,7 +326,7 @@ int ata_sff_wait_ready(struct ata_port *ap, unsigned long deadline)
326 int warned = 0; 326 int warned = 0;
327 327
328 while (1) { 328 while (1) {
329 u8 status = ap->ops->check_status(ap); 329 u8 status = ap->ops->sff_check_status(ap);
330 unsigned long now = jiffies; 330 unsigned long now = jiffies;
331 331
332 if (!(status & ATA_BUSY)) 332 if (!(status & ATA_BUSY))
@@ -403,7 +403,7 @@ void ata_dev_select(struct ata_port *ap, unsigned int device,
403 if (wait) 403 if (wait)
404 ata_wait_idle(ap); 404 ata_wait_idle(ap);
405 405
406 ap->ops->dev_select(ap, device); 406 ap->ops->sff_dev_select(ap, device);
407 407
408 if (wait) { 408 if (wait) {
409 if (can_sleep && ap->link.device[device].class == ATA_DEV_ATAPI) 409 if (can_sleep && ap->link.device[device].class == ATA_DEV_ATAPI)
@@ -434,7 +434,7 @@ u8 ata_sff_irq_on(struct ata_port *ap)
434 iowrite8(ap->ctl, ioaddr->ctl_addr); 434 iowrite8(ap->ctl, ioaddr->ctl_addr);
435 tmp = ata_wait_idle(ap); 435 tmp = ata_wait_idle(ap);
436 436
437 ap->ops->irq_clear(ap); 437 ap->ops->sff_irq_clear(ap);
438 438
439 return tmp; 439 return tmp;
440} 440}
@@ -593,8 +593,8 @@ void ata_sff_exec_command(struct ata_port *ap, const struct ata_taskfile *tf)
593static inline void ata_tf_to_host(struct ata_port *ap, 593static inline void ata_tf_to_host(struct ata_port *ap,
594 const struct ata_taskfile *tf) 594 const struct ata_taskfile *tf)
595{ 595{
596 ap->ops->tf_load(ap, tf); 596 ap->ops->sff_tf_load(ap, tf);
597 ap->ops->exec_command(ap, tf); 597 ap->ops->sff_exec_command(ap, tf);
598} 598}
599 599
600/** 600/**
@@ -709,13 +709,15 @@ static void ata_pio_sector(struct ata_queued_cmd *qc)
709 buf = kmap_atomic(page, KM_IRQ0); 709 buf = kmap_atomic(page, KM_IRQ0);
710 710
711 /* do the actual data transfer */ 711 /* do the actual data transfer */
712 ap->ops->data_xfer(qc->dev, buf + offset, qc->sect_size, do_write); 712 ap->ops->sff_data_xfer(qc->dev, buf + offset, qc->sect_size,
713 do_write);
713 714
714 kunmap_atomic(buf, KM_IRQ0); 715 kunmap_atomic(buf, KM_IRQ0);
715 local_irq_restore(flags); 716 local_irq_restore(flags);
716 } else { 717 } else {
717 buf = page_address(page); 718 buf = page_address(page);
718 ap->ops->data_xfer(qc->dev, buf + offset, qc->sect_size, do_write); 719 ap->ops->sff_data_xfer(qc->dev, buf + offset, qc->sect_size,
720 do_write);
719 } 721 }
720 722
721 qc->curbytes += qc->sect_size; 723 qc->curbytes += qc->sect_size;
@@ -772,7 +774,7 @@ static void atapi_send_cdb(struct ata_port *ap, struct ata_queued_cmd *qc)
772 DPRINTK("send cdb\n"); 774 DPRINTK("send cdb\n");
773 WARN_ON(qc->dev->cdb_len < 12); 775 WARN_ON(qc->dev->cdb_len < 12);
774 776
775 ap->ops->data_xfer(qc->dev, qc->cdb, qc->dev->cdb_len, 1); 777 ap->ops->sff_data_xfer(qc->dev, qc->cdb, qc->dev->cdb_len, 1);
776 ata_sff_altstatus(ap); /* flush */ 778 ata_sff_altstatus(ap); /* flush */
777 779
778 switch (qc->tf.protocol) { 780 switch (qc->tf.protocol) {
@@ -844,13 +846,13 @@ next_sg:
844 buf = kmap_atomic(page, KM_IRQ0); 846 buf = kmap_atomic(page, KM_IRQ0);
845 847
846 /* do the actual data transfer */ 848 /* do the actual data transfer */
847 consumed = ap->ops->data_xfer(dev, buf + offset, count, rw); 849 consumed = ap->ops->sff_data_xfer(dev, buf + offset, count, rw);
848 850
849 kunmap_atomic(buf, KM_IRQ0); 851 kunmap_atomic(buf, KM_IRQ0);
850 local_irq_restore(flags); 852 local_irq_restore(flags);
851 } else { 853 } else {
852 buf = page_address(page); 854 buf = page_address(page);
853 consumed = ap->ops->data_xfer(dev, buf + offset, count, rw); 855 consumed = ap->ops->sff_data_xfer(dev, buf + offset, count, rw);
854 } 856 }
855 857
856 bytes -= min(bytes, consumed); 858 bytes -= min(bytes, consumed);
@@ -893,7 +895,7 @@ static void atapi_pio_bytes(struct ata_queued_cmd *qc)
893 * error, qc->result_tf is later overwritten by ata_qc_complete(). 895 * error, qc->result_tf is later overwritten by ata_qc_complete().
894 * So, the correctness of qc->result_tf is not affected. 896 * So, the correctness of qc->result_tf is not affected.
895 */ 897 */
896 ap->ops->tf_read(ap, &qc->result_tf); 898 ap->ops->sff_tf_read(ap, &qc->result_tf);
897 ireason = qc->result_tf.nsect; 899 ireason = qc->result_tf.nsect;
898 bc_lo = qc->result_tf.lbam; 900 bc_lo = qc->result_tf.lbam;
899 bc_hi = qc->result_tf.lbah; 901 bc_hi = qc->result_tf.lbah;
@@ -979,7 +981,7 @@ static void ata_hsm_qc_complete(struct ata_queued_cmd *qc, int in_wq)
979 qc = ata_qc_from_tag(ap, qc->tag); 981 qc = ata_qc_from_tag(ap, qc->tag);
980 if (qc) { 982 if (qc) {
981 if (likely(!(qc->err_mask & AC_ERR_HSM))) { 983 if (likely(!(qc->err_mask & AC_ERR_HSM))) {
982 ap->ops->irq_on(ap); 984 ap->ops->sff_irq_on(ap);
983 ata_qc_complete(qc); 985 ata_qc_complete(qc);
984 } else 986 } else
985 ata_port_freeze(ap); 987 ata_port_freeze(ap);
@@ -995,7 +997,7 @@ static void ata_hsm_qc_complete(struct ata_queued_cmd *qc, int in_wq)
995 } else { 997 } else {
996 if (in_wq) { 998 if (in_wq) {
997 spin_lock_irqsave(ap->lock, flags); 999 spin_lock_irqsave(ap->lock, flags);
998 ap->ops->irq_on(ap); 1000 ap->ops->sff_irq_on(ap);
999 ata_qc_complete(qc); 1001 ata_qc_complete(qc);
1000 spin_unlock_irqrestore(ap->lock, flags); 1002 spin_unlock_irqrestore(ap->lock, flags);
1001 } else 1003 } else
@@ -1345,7 +1347,7 @@ unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc)
1345 case ATA_PROT_DMA: 1347 case ATA_PROT_DMA:
1346 WARN_ON(qc->tf.flags & ATA_TFLAG_POLLING); 1348 WARN_ON(qc->tf.flags & ATA_TFLAG_POLLING);
1347 1349
1348 ap->ops->tf_load(ap, &qc->tf); /* load tf registers */ 1350 ap->ops->sff_tf_load(ap, &qc->tf); /* load tf registers */
1349 ap->ops->bmdma_setup(qc); /* set up bmdma */ 1351 ap->ops->bmdma_setup(qc); /* set up bmdma */
1350 ap->ops->bmdma_start(qc); /* initiate bmdma */ 1352 ap->ops->bmdma_start(qc); /* initiate bmdma */
1351 ap->hsm_task_state = HSM_ST_LAST; 1353 ap->hsm_task_state = HSM_ST_LAST;
@@ -1397,7 +1399,7 @@ unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc)
1397 case ATAPI_PROT_DMA: 1399 case ATAPI_PROT_DMA:
1398 WARN_ON(qc->tf.flags & ATA_TFLAG_POLLING); 1400 WARN_ON(qc->tf.flags & ATA_TFLAG_POLLING);
1399 1401
1400 ap->ops->tf_load(ap, &qc->tf); /* load tf registers */ 1402 ap->ops->sff_tf_load(ap, &qc->tf); /* load tf registers */
1401 ap->ops->bmdma_setup(qc); /* set up bmdma */ 1403 ap->ops->bmdma_setup(qc); /* set up bmdma */
1402 ap->hsm_task_state = HSM_ST_FIRST; 1404 ap->hsm_task_state = HSM_ST_FIRST;
1403 1405
@@ -1486,12 +1488,12 @@ inline unsigned int ata_sff_host_intr(struct ata_port *ap,
1486 goto idle_irq; 1488 goto idle_irq;
1487 1489
1488 /* check main status, clearing INTRQ */ 1490 /* check main status, clearing INTRQ */
1489 status = ap->ops->check_status(ap); 1491 status = ap->ops->sff_check_status(ap);
1490 if (unlikely(status & ATA_BUSY)) 1492 if (unlikely(status & ATA_BUSY))
1491 goto idle_irq; 1493 goto idle_irq;
1492 1494
1493 /* ack bmdma irq events */ 1495 /* ack bmdma irq events */
1494 ap->ops->irq_clear(ap); 1496 ap->ops->sff_irq_clear(ap);
1495 1497
1496 ata_sff_hsm_move(ap, qc, status, 0); 1498 ata_sff_hsm_move(ap, qc, status, 0);
1497 1499
@@ -1506,8 +1508,8 @@ idle_irq:
1506 1508
1507#ifdef ATA_IRQ_TRAP 1509#ifdef ATA_IRQ_TRAP
1508 if ((ap->stats.idle_irq % 1000) == 0) { 1510 if ((ap->stats.idle_irq % 1000) == 0) {
1509 ap->ops->check_status(ap); 1511 ap->ops->sff_check_status(ap);
1510 ap->ops->irq_clear(ap); 1512 ap->ops->sff_irq_clear(ap);
1511 ata_port_printk(ap, KERN_WARNING, "irq trap\n"); 1513 ata_port_printk(ap, KERN_WARNING, "irq trap\n");
1512 return 1; 1514 return 1;
1513 } 1515 }
@@ -1582,9 +1584,9 @@ void ata_sff_freeze(struct ata_port *ap)
1582 * ATA_NIEN manipulation. Also, many controllers fail to mask 1584 * ATA_NIEN manipulation. Also, many controllers fail to mask
1583 * previously pending IRQ on ATA_NIEN assertion. Clear it. 1585 * previously pending IRQ on ATA_NIEN assertion. Clear it.
1584 */ 1586 */
1585 ap->ops->check_status(ap); 1587 ap->ops->sff_check_status(ap);
1586 1588
1587 ap->ops->irq_clear(ap); 1589 ap->ops->sff_irq_clear(ap);
1588} 1590}
1589 1591
1590/** 1592/**
@@ -1599,9 +1601,9 @@ void ata_sff_freeze(struct ata_port *ap)
1599void ata_sff_thaw(struct ata_port *ap) 1601void ata_sff_thaw(struct ata_port *ap)
1600{ 1602{
1601 /* clear & re-enable interrupts */ 1603 /* clear & re-enable interrupts */
1602 ap->ops->check_status(ap); 1604 ap->ops->sff_check_status(ap);
1603 ap->ops->irq_clear(ap); 1605 ap->ops->sff_irq_clear(ap);
1604 ap->ops->irq_on(ap); 1606 ap->ops->sff_irq_on(ap);
1605} 1607}
1606 1608
1607/** 1609/**
@@ -1626,7 +1628,7 @@ static unsigned int ata_devchk(struct ata_port *ap, unsigned int device)
1626 struct ata_ioports *ioaddr = &ap->ioaddr; 1628 struct ata_ioports *ioaddr = &ap->ioaddr;
1627 u8 nsect, lbal; 1629 u8 nsect, lbal;
1628 1630
1629 ap->ops->dev_select(ap, device); 1631 ap->ops->sff_dev_select(ap, device);
1630 1632
1631 iowrite8(0x55, ioaddr->nsect_addr); 1633 iowrite8(0x55, ioaddr->nsect_addr);
1632 iowrite8(0xaa, ioaddr->lbal_addr); 1634 iowrite8(0xaa, ioaddr->lbal_addr);
@@ -1675,11 +1677,11 @@ unsigned int ata_sff_dev_classify(struct ata_device *dev, int present,
1675 unsigned int class; 1677 unsigned int class;
1676 u8 err; 1678 u8 err;
1677 1679
1678 ap->ops->dev_select(ap, dev->devno); 1680 ap->ops->sff_dev_select(ap, dev->devno);
1679 1681
1680 memset(&tf, 0, sizeof(tf)); 1682 memset(&tf, 0, sizeof(tf));
1681 1683
1682 ap->ops->tf_read(ap, &tf); 1684 ap->ops->sff_tf_read(ap, &tf);
1683 err = tf.feature; 1685 err = tf.feature;
1684 if (r_err) 1686 if (r_err)
1685 *r_err = err; 1687 *r_err = err;
@@ -1709,7 +1711,8 @@ unsigned int ata_sff_dev_classify(struct ata_device *dev, int present,
1709 class = ATA_DEV_ATA; 1711 class = ATA_DEV_ATA;
1710 else 1712 else
1711 class = ATA_DEV_NONE; 1713 class = ATA_DEV_NONE;
1712 } else if ((class == ATA_DEV_ATA) && (ap->ops->check_status(ap) == 0)) 1714 } else if ((class == ATA_DEV_ATA) &&
1715 (ap->ops->sff_check_status(ap) == 0))
1713 class = ATA_DEV_NONE; 1716 class = ATA_DEV_NONE;
1714 1717
1715 return class; 1718 return class;
@@ -1741,7 +1744,7 @@ static int ata_bus_post_reset(struct ata_port *ap, unsigned int devmask,
1741 if (dev1) { 1744 if (dev1) {
1742 int i; 1745 int i;
1743 1746
1744 ap->ops->dev_select(ap, 1); 1747 ap->ops->sff_dev_select(ap, 1);
1745 1748
1746 /* Wait for register access. Some ATAPI devices fail 1749 /* Wait for register access. Some ATAPI devices fail
1747 * to set nsect/lbal after reset, so don't waste too 1750 * to set nsect/lbal after reset, so don't waste too
@@ -1766,11 +1769,11 @@ static int ata_bus_post_reset(struct ata_port *ap, unsigned int devmask,
1766 } 1769 }
1767 1770
1768 /* is all this really necessary? */ 1771 /* is all this really necessary? */
1769 ap->ops->dev_select(ap, 0); 1772 ap->ops->sff_dev_select(ap, 0);
1770 if (dev1) 1773 if (dev1)
1771 ap->ops->dev_select(ap, 1); 1774 ap->ops->sff_dev_select(ap, 1);
1772 if (dev0) 1775 if (dev0)
1773 ap->ops->dev_select(ap, 0); 1776 ap->ops->sff_dev_select(ap, 0);
1774 1777
1775 return ret; 1778 return ret;
1776} 1779}
@@ -1820,7 +1823,7 @@ void ata_sff_wait_after_reset(struct ata_port *ap, unsigned long deadline)
1820 */ 1823 */
1821 if (ap->flags & ATA_FLAG_SATA) { 1824 if (ap->flags & ATA_FLAG_SATA) {
1822 while (1) { 1825 while (1) {
1823 u8 status = ap->ops->check_status(ap); 1826 u8 status = ap->ops->sff_check_status(ap);
1824 1827
1825 if (status != 0xff || time_after(jiffies, deadline)) 1828 if (status != 0xff || time_after(jiffies, deadline))
1826 return; 1829 return;
@@ -1851,7 +1854,7 @@ static int ata_bus_softreset(struct ata_port *ap, unsigned int devmask,
1851 * the bus shows 0xFF because the odd clown forgets the D7 1854 * the bus shows 0xFF because the odd clown forgets the D7
1852 * pulldown resistor. 1855 * pulldown resistor.
1853 */ 1856 */
1854 if (ap->ops->check_status(ap) == 0xFF) 1857 if (ap->ops->sff_check_status(ap) == 0xFF)
1855 return -ENODEV; 1858 return -ENODEV;
1856 1859
1857 return ata_bus_post_reset(ap, devmask, deadline); 1860 return ata_bus_post_reset(ap, devmask, deadline);
@@ -1894,7 +1897,7 @@ int ata_sff_softreset(struct ata_link *link, unsigned int *classes,
1894 devmask |= (1 << 1); 1897 devmask |= (1 << 1);
1895 1898
1896 /* select device 0 again */ 1899 /* select device 0 again */
1897 ap->ops->dev_select(ap, 0); 1900 ap->ops->sff_dev_select(ap, 0);
1898 1901
1899 /* issue bus reset */ 1902 /* issue bus reset */
1900 DPRINTK("about to softreset, devmask=%x\n", devmask); 1903 DPRINTK("about to softreset, devmask=%x\n", devmask);
@@ -1977,7 +1980,7 @@ int sata_sff_hardreset(struct ata_link *link, unsigned int *class,
1977 return rc; 1980 return rc;
1978 } 1981 }
1979 1982
1980 ap->ops->dev_select(ap, 0); /* probably unnecessary */ 1983 ap->ops->sff_dev_select(ap, 0); /* probably unnecessary */
1981 1984
1982 *class = ata_sff_dev_classify(link->device, 1, NULL); 1985 *class = ata_sff_dev_classify(link->device, 1, NULL);
1983 1986
@@ -2035,8 +2038,8 @@ void ata_sff_error_handler(struct ata_port *ap)
2035 } 2038 }
2036 2039
2037 ata_sff_altstatus(ap); 2040 ata_sff_altstatus(ap);
2038 ap->ops->check_status(ap); 2041 ap->ops->sff_check_status(ap);
2039 ap->ops->irq_clear(ap); 2042 ap->ops->sff_irq_clear(ap);
2040 2043
2041 spin_unlock_irqrestore(ap->lock, flags); 2044 spin_unlock_irqrestore(ap->lock, flags);
2042 2045
@@ -2153,7 +2156,7 @@ void ata_bmdma_setup(struct ata_queued_cmd *qc)
2153 iowrite8(dmactl, ap->ioaddr.bmdma_addr + ATA_DMA_CMD); 2156 iowrite8(dmactl, ap->ioaddr.bmdma_addr + ATA_DMA_CMD);
2154 2157
2155 /* issue r/w command */ 2158 /* issue r/w command */
2156 ap->ops->exec_command(ap, &qc->tf); 2159 ap->ops->sff_exec_command(ap, &qc->tf);
2157} 2160}
2158 2161
2159/** 2162/**
@@ -2277,7 +2280,7 @@ void ata_bus_reset(struct ata_port *ap)
2277 devmask |= (1 << 1); 2280 devmask |= (1 << 1);
2278 2281
2279 /* select device 0 again */ 2282 /* select device 0 again */
2280 ap->ops->dev_select(ap, 0); 2283 ap->ops->sff_dev_select(ap, 0);
2281 2284
2282 /* issue bus reset */ 2285 /* issue bus reset */
2283 if (ap->flags & ATA_FLAG_SRST) { 2286 if (ap->flags & ATA_FLAG_SRST) {
@@ -2295,9 +2298,9 @@ void ata_bus_reset(struct ata_port *ap)
2295 2298
2296 /* is double-select really necessary? */ 2299 /* is double-select really necessary? */
2297 if (device[1].class != ATA_DEV_NONE) 2300 if (device[1].class != ATA_DEV_NONE)
2298 ap->ops->dev_select(ap, 1); 2301 ap->ops->sff_dev_select(ap, 1);
2299 if (device[0].class != ATA_DEV_NONE) 2302 if (device[0].class != ATA_DEV_NONE)
2300 ap->ops->dev_select(ap, 0); 2303 ap->ops->sff_dev_select(ap, 0);
2301 2304
2302 /* if no devices were detected, disable this port */ 2305 /* if no devices were detected, disable this port */
2303 if ((device[0].class == ATA_DEV_NONE) && 2306 if ((device[0].class == ATA_DEV_NONE) &&