[git pull] IDE updates part 1
From: Bartlomiej Zolnierkiewicz
Date: Tue Mar 24 2009 - 20:07:05 EST
Hi,
Nothing really earthshaking here:
- IDE ACPI cleanup
- IRQ setup sanitization
- saner code layout
- unified IDENTIFY handling
- by-the-way fixes/cleanups
Linus, please pull from:
master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6.git/
to receive the following updates:
drivers/ide/Kconfig | 8 +
drivers/ide/Makefile | 4 +-
drivers/ide/aec62xx.c | 4 +-
drivers/ide/alim15x3.c | 2 +-
drivers/ide/amd74xx.c | 14 +-
drivers/ide/atiixp.c | 3 +-
drivers/ide/cmd64x.c | 2 +-
drivers/ide/cs5520.c | 3 +-
drivers/ide/cs5530.c | 2 +-
drivers/ide/delkin_cb.c | 2 +-
drivers/ide/hpt366.c | 4 +-
drivers/ide/ide-acpi.c | 214 +++---------
drivers/ide/ide-atapi.c | 41 +++-
drivers/ide/ide-cd.c | 4 +-
drivers/ide/ide-devsets.c | 190 +++++++++++
drivers/ide/ide-dma.c | 57 ++++
drivers/ide/ide-eh.c | 428 ++++++++++++++++++++++++
drivers/ide/ide-io-std.c | 316 ++++++++++++++++++
drivers/ide/ide-io.c | 320 ++----------------
drivers/ide/ide-iops.c | 742 ++---------------------------------------
drivers/ide/ide-lib.c | 240 -------------
drivers/ide/ide-park.c | 25 ++
drivers/ide/ide-pci-generic.c | 4 +-
drivers/ide/ide-probe.c | 248 +++-----------
drivers/ide/ide-proc.c | 2 +-
drivers/ide/ide-xfer-mode.c | 246 ++++++++++++++
drivers/ide/ide.c | 156 +---------
drivers/ide/it821x.c | 2 +-
drivers/ide/ns87415.c | 4 +-
drivers/ide/pdc202xx_new.c | 4 +-
drivers/ide/pdc202xx_old.c | 4 +-
drivers/ide/piix.c | 13 +-
drivers/ide/serverworks.c | 13 +-
drivers/ide/setup-pci.c | 27 +-
drivers/ide/siimage.c | 2 +-
drivers/ide/sis5513.c | 4 +-
drivers/ide/sl82c105.c | 4 +-
drivers/ide/slc90e66.c | 1 -
drivers/ide/trm290.c | 3 -
drivers/ide/via82cxxx.c | 12 +-
include/asm-frv/ide.h | 24 --
include/asm-mn10300/ide.h | 39 ---
include/asm-mn10300/pci.h | 5 +
include/linux/ata.h | 2 -
include/linux/ide.h | 78 ++---
45 files changed, 1571 insertions(+), 1951 deletions(-)
create mode 100644 drivers/ide/ide-devsets.c
create mode 100644 drivers/ide/ide-eh.c
create mode 100644 drivers/ide/ide-io-std.c
create mode 100644 drivers/ide/ide-xfer-mode.c
delete mode 100644 include/asm-frv/ide.h
delete mode 100644 include/asm-mn10300/ide.h
Bartlomiej Zolnierkiewicz (52):
ide: move ide_pktcmd_tf_load() to ide-atapi.c
ide: no need to touch local IRQs in ide_probe_port()
ide: move ->lock and ->timer init from init_irq() to ide_init_port_data()
ide: init_irq() doesn't need to hold ide_cfg_mtx
ide: remove superfluous check from ide_proc_port_register_devices()
ide-acpi: no need to zero ->acpidata for devices
ide-acpi: init ACPI handles early for devices
ide: add ide_for_each_present_dev() iterator
ide: sanitize ACPI initialization
ide-acpi: cleanup do_drive_get_GTF()
ide-acpi: cleanup do_drive_set_taskfiles()
ide-acpi: remove taskfile_load_raw()
ide: remove stale comments from drive_is_ready()
ide: unexport ide_devset_execute()
ide: move drive_is_ready() to ide-io.c
ide: move ide_dma_timeout_retry() to ide-dma.c
ide: remove ide_do_drive_cmd()
ide: factor out processing of special commands from ide_special_rq()
ide: move ide_do_park_unpark() to ide-park.c
ide: move device settings code to ide-devsets.c
ide: move xfer mode tuning code to ide-xfer-mode.c
ide: move ide_read_bcount_and_ireason() to ide-atapi.c
ide: move standard I/O code to ide-io-std.c
ide: fix printk() levels in [atapi_]reset_pollfunc()
ide: fix comments in ide_config_drive_speed()
ide: checkpatch.pl fixes for ide-iops.c
ide: move error handling code to ide-eh.c (v2)
mn10300: add pci_get_legacy_ide_irq() to <asm/pci.h>
amd74xx: use ide_pci_is_in_compatibility_mode()
ns87415: use pci_get_legacy_ide_irq()
ns87415: small ->init_hwif cleanup
trm290: small ->init_hwif cleanup
ide: handle IDE_HFLAG[_FORCE]_LEGACY_IRQS in ide_pci_init_{one,two}()
ide: use pci_get_legacy_ide_irq() in ide_pci_init_{one,two}()
ide: use ide_pci_is_in_compatibility_mode() in ide_pci_init_{one,two}()
ide: remove no longer needed IDE_HFLAG[_FORCE]_LEGACY_IRQS
amd74xx: remove no longer needed ->init_hwif method
ide: remove no longer needed IRQ fallback code from hwif_init()
ide: remove no longer needed IRQ auto-probing from try_to_identify() (v2)
ide: remove try_to_identify() wrapper
ide: fix ->init_chipset method to return 'int' value
ide: remove pciirq argument from ide_pci_setup_ports()
frv: remove <asm/ide.h>
mn10300: remove <asm/ide.h>
ide: fix kmalloc() failure handling in ide_driveid_update()
ide: propagate AltStatus workarounds to ide_driveid_update()
ide: shorten timeout value in ide_driveid_update()
ide: remove broken EXABYTENEST support
ide: classify device type in do_probe()
ide: sanitize SELECT_MASK() usage in ide_driveid_update()
ide: clear drive IRQ after re-enabling local IRQs in ide_driveid_update()
ide: use try_to_identify() in ide_driveid_update()
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 5ea3bfa..640c992 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -56,8 +56,12 @@ if IDE
comment "Please see Documentation/ide/ide.txt for help/info on IDE drives"
+config IDE_XFER_MODE
+ bool
+
config IDE_TIMINGS
bool
+ select IDE_XFER_MODE
config IDE_ATAPI
bool
@@ -698,6 +702,7 @@ config BLK_DEV_IDE_PMAC_ATA100FIRST
config BLK_DEV_IDE_AU1XXX
bool "IDE for AMD Alchemy Au1200"
depends on SOC_AU1200
+ select IDE_XFER_MODE
choice
prompt "IDE Mode for AMD Alchemy Au1200"
default CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA
@@ -871,6 +876,7 @@ config BLK_DEV_ALI14XX
config BLK_DEV_DTC2278
tristate "DTC-2278 support"
+ select IDE_XFER_MODE
select IDE_LEGACY
help
This driver is enabled at runtime using the "dtc2278.probe" kernel
@@ -902,6 +908,7 @@ config BLK_DEV_QD65XX
config BLK_DEV_UMC8672
tristate "UMC-8672 support"
+ select IDE_XFER_MODE
select IDE_LEGACY
help
This driver is enabled at runtime using the "umc8672.probe" kernel
@@ -915,5 +922,6 @@ endif
config BLK_DEV_IDEDMA
def_bool BLK_DEV_IDEDMA_SFF || \
BLK_DEV_IDEDMA_ICS || BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
+ select IDE_XFER_MODE
endif # IDE
diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile
index 1c326d9..9b4bbe1 100644
--- a/drivers/ide/Makefile
+++ b/drivers/ide/Makefile
@@ -5,9 +5,11 @@
EXTRA_CFLAGS += -Idrivers/ide
ide-core-y += ide.o ide-ioctls.o ide-io.o ide-iops.o ide-lib.o ide-probe.o \
- ide-taskfile.o ide-pm.o ide-park.o ide-pio-blacklist.o ide-sysfs.o
+ ide-taskfile.o ide-pm.o ide-park.o ide-sysfs.o ide-devsets.o \
+ ide-io-std.o ide-eh.o
# core IDE code
+ide-core-$(CONFIG_IDE_XFER_MODE) += ide-pio-blacklist.o ide-xfer-mode.o
ide-core-$(CONFIG_IDE_TIMINGS) += ide-timings.o
ide-core-$(CONFIG_IDE_ATAPI) += ide-atapi.o
ide-core-$(CONFIG_BLK_DEV_IDEPCI) += setup-pci.o
diff --git a/drivers/ide/aec62xx.c b/drivers/ide/aec62xx.c
index 4485b9c..878f8ec 100644
--- a/drivers/ide/aec62xx.c
+++ b/drivers/ide/aec62xx.c
@@ -139,7 +139,7 @@ static void aec_set_pio_mode(ide_drive_t *drive, const u8 pio)
drive->hwif->port_ops->set_dma_mode(drive, pio + XFER_PIO_0);
}
-static unsigned int init_chipset_aec62xx(struct pci_dev *dev)
+static int init_chipset_aec62xx(struct pci_dev *dev)
{
/* These are necessary to get AEC6280 Macintosh cards to work */
if ((dev->device == PCI_DEVICE_ID_ARTOP_ATP865) ||
@@ -156,7 +156,7 @@ static unsigned int init_chipset_aec62xx(struct pci_dev *dev)
pci_write_config_byte(dev, 0x4a, reg4ah | 0x80);
}
- return dev->irq;
+ return 0;
}
static u8 atp86x_cable_detect(ide_hwif_t *hwif)
diff --git a/drivers/ide/alim15x3.c b/drivers/ide/alim15x3.c
index 66f4308..d3513b6 100644
--- a/drivers/ide/alim15x3.c
+++ b/drivers/ide/alim15x3.c
@@ -212,7 +212,7 @@ static int ali15x3_dma_setup(ide_drive_t *drive)
* appropriate also sets up the 1533 southbridge.
*/
-static unsigned int init_chipset_ali15x3(struct pci_dev *dev)
+static int init_chipset_ali15x3(struct pci_dev *dev)
{
unsigned long flags;
u8 tmpbyte;
diff --git a/drivers/ide/amd74xx.c b/drivers/ide/amd74xx.c
index 77267c8..628cd2e 100644
--- a/drivers/ide/amd74xx.c
+++ b/drivers/ide/amd74xx.c
@@ -140,7 +140,7 @@ static void amd7411_cable_detect(struct pci_dev *dev)
* The initialization callback. Initialize drive independent registers.
*/
-static unsigned int init_chipset_amd74xx(struct pci_dev *dev)
+static int init_chipset_amd74xx(struct pci_dev *dev)
{
u8 t = 0, offset = amd_offset(dev);
@@ -172,7 +172,7 @@ static unsigned int init_chipset_amd74xx(struct pci_dev *dev)
t |= 0xf0;
pci_write_config_byte(dev, AMD_IDE_CONFIG + offset, t);
- return dev->irq;
+ return 0;
}
static u8 amd_cable_detect(ide_hwif_t *hwif)
@@ -183,14 +183,6 @@ static u8 amd_cable_detect(ide_hwif_t *hwif)
return ATA_CBL_PATA40;
}
-static void __devinit init_hwif_amd74xx(ide_hwif_t *hwif)
-{
- struct pci_dev *dev = to_pci_dev(hwif->dev);
-
- if (hwif->irq == 0) /* 0 is bogus but will do for now */
- hwif->irq = pci_get_legacy_ide_irq(dev, hwif->channel);
-}
-
static const struct ide_port_ops amd_port_ops = {
.set_pio_mode = amd_set_pio_mode,
.set_dma_mode = amd_set_drive,
@@ -207,7 +199,6 @@ static const struct ide_port_ops amd_port_ops = {
{ \
.name = DRV_NAME, \
.init_chipset = init_chipset_amd74xx, \
- .init_hwif = init_hwif_amd74xx, \
.enablebits = {{0x40,0x02,0x02}, {0x40,0x01,0x01}}, \
.port_ops = &amd_port_ops, \
.host_flags = IDE_HFLAGS_AMD, \
@@ -221,7 +212,6 @@ static const struct ide_port_ops amd_port_ops = {
{ \
.name = DRV_NAME, \
.init_chipset = init_chipset_amd74xx, \
- .init_hwif = init_hwif_amd74xx, \
.enablebits = {{0x50,0x02,0x02}, {0x50,0x01,0x01}}, \
.port_ops = &amd_port_ops, \
.host_flags = IDE_HFLAGS_AMD, \
diff --git a/drivers/ide/atiixp.c b/drivers/ide/atiixp.c
index ecd1e62..923cbfe 100644
--- a/drivers/ide/atiixp.c
+++ b/drivers/ide/atiixp.c
@@ -142,7 +142,6 @@ static const struct ide_port_info atiixp_pci_info[] __devinitdata = {
.name = DRV_NAME,
.enablebits = {{0x48,0x01,0x00}, {0x48,0x08,0x00}},
.port_ops = &atiixp_port_ops,
- .host_flags = IDE_HFLAG_LEGACY_IRQS,
.pio_mask = ATA_PIO4,
.mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA5,
@@ -151,7 +150,7 @@ static const struct ide_port_info atiixp_pci_info[] __devinitdata = {
.name = DRV_NAME,
.enablebits = {{0x48,0x01,0x00}, {0x00,0x00,0x00}},
.port_ops = &atiixp_port_ops,
- .host_flags = IDE_HFLAG_SINGLE | IDE_HFLAG_LEGACY_IRQS,
+ .host_flags = IDE_HFLAG_SINGLE,
.pio_mask = ATA_PIO4,
.mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA5,
diff --git a/drivers/ide/cmd64x.c b/drivers/ide/cmd64x.c
index 2f9688d..aeee036 100644
--- a/drivers/ide/cmd64x.c
+++ b/drivers/ide/cmd64x.c
@@ -333,7 +333,7 @@ static int cmd646_1_dma_end(ide_drive_t *drive)
return (dma_stat & 7) != 4;
}
-static unsigned int init_chipset_cmd64x(struct pci_dev *dev)
+static int init_chipset_cmd64x(struct pci_dev *dev)
{
u8 mrdmode = 0;
diff --git a/drivers/ide/cs5520.c b/drivers/ide/cs5520.c
index d003bec..58fb90e 100644
--- a/drivers/ide/cs5520.c
+++ b/drivers/ide/cs5520.c
@@ -133,7 +133,8 @@ static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_devic
* do all the device setup for us
*/
- ide_pci_setup_ports(dev, d, 14, &hw[0], &hws[0]);
+ ide_pci_setup_ports(dev, d, &hw[0], &hws[0]);
+ hw[0].irq = 14;
return ide_host_add(d, hws, NULL);
}
diff --git a/drivers/ide/cs5530.c b/drivers/ide/cs5530.c
index d8ede85..8e8b35a 100644
--- a/drivers/ide/cs5530.c
+++ b/drivers/ide/cs5530.c
@@ -135,7 +135,7 @@ static void cs5530_set_dma_mode(ide_drive_t *drive, const u8 mode)
* Initialize the cs5530 bridge for reliable IDE DMA operation.
*/
-static unsigned int init_chipset_cs5530(struct pci_dev *dev)
+static int init_chipset_cs5530(struct pci_dev *dev)
{
struct pci_dev *master_0 = NULL, *cs5530_0 = NULL;
diff --git a/drivers/ide/delkin_cb.c b/drivers/ide/delkin_cb.c
index 8f1b2d9..bacb119 100644
--- a/drivers/ide/delkin_cb.c
+++ b/drivers/ide/delkin_cb.c
@@ -46,7 +46,7 @@ static const struct ide_port_ops delkin_cb_port_ops = {
.quirkproc = ide_undecoded_slave,
};
-static unsigned int delkin_cb_init_chipset(struct pci_dev *dev)
+static int delkin_cb_init_chipset(struct pci_dev *dev)
{
unsigned long base = pci_resource_start(dev, 0);
int i;
diff --git a/drivers/ide/hpt366.c b/drivers/ide/hpt366.c
index 3eb9b5c..d3b3e82 100644
--- a/drivers/ide/hpt366.c
+++ b/drivers/ide/hpt366.c
@@ -995,7 +995,7 @@ static void hpt3xx_disable_fast_irq(struct pci_dev *dev, u8 mcr_addr)
pci_write_config_byte(dev, mcr_addr + 1, new_mcr);
}
-static unsigned int init_chipset_hpt366(struct pci_dev *dev)
+static int init_chipset_hpt366(struct pci_dev *dev)
{
unsigned long io_base = pci_resource_start(dev, 4);
struct hpt_info *info = hpt3xx_get_info(&dev->dev);
@@ -1237,7 +1237,7 @@ static unsigned int init_chipset_hpt366(struct pci_dev *dev)
hpt3xx_disable_fast_irq(dev, 0x50);
hpt3xx_disable_fast_irq(dev, 0x54);
- return dev->irq;
+ return 0;
}
static u8 hpt3xx_cable_detect(ide_hwif_t *hwif)
diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c
index ec7d07f..5b704f1 100644
--- a/drivers/ide/ide-acpi.c
+++ b/drivers/ide/ide-acpi.c
@@ -20,9 +20,6 @@
#include <acpi/acpi_bus.h>
#define REGS_PER_GTF 7
-struct taskfile_array {
- u8 tfa[REGS_PER_GTF]; /* regs. 0x1f1 - 0x1f7 */
-};
struct GTM_buffer {
u32 PIO_speed0;
@@ -89,12 +86,8 @@ static const struct dmi_system_id ide_acpi_dmi_table[] = {
{ } /* terminate list */
};
-static int ide_acpi_blacklist(void)
+int ide_acpi_init(void)
{
- static int done;
- if (done)
- return 0;
- done = 1;
dmi_check_system(ide_acpi_dmi_table);
return 0;
}
@@ -202,40 +195,6 @@ static acpi_handle ide_acpi_hwif_get_handle(ide_hwif_t *hwif)
}
/**
- * ide_acpi_drive_get_handle - Get ACPI object handle for a given drive
- * @drive: device to locate
- *
- * Retrieves the object handle of a given drive. According to the ACPI
- * spec the drive is a child of the hwif.
- *
- * Returns handle on success, 0 on error.
- */
-static acpi_handle ide_acpi_drive_get_handle(ide_drive_t *drive)
-{
- ide_hwif_t *hwif = drive->hwif;
- int port;
- acpi_handle drive_handle;
-
- if (!hwif->acpidata)
- return NULL;
-
- if (!hwif->acpidata->obj_handle)
- return NULL;
-
- port = hwif->channel ? drive->dn - 2: drive->dn;
-
- DEBPRINT("ENTER: %s at channel#: %d port#: %d\n",
- drive->name, hwif->channel, port);
-
-
- /* TBD: could also check ACPI object VALID bits */
- drive_handle = acpi_get_child(hwif->acpidata->obj_handle, port);
- DEBPRINT("drive %s handle 0x%p\n", drive->name, drive_handle);
-
- return drive_handle;
-}
-
-/**
* do_drive_get_GTF - get the drive bootup default taskfile settings
* @drive: the drive for which the taskfile settings should be retrieved
* @gtf_length: number of bytes of _GTF data returned at @gtf_address
@@ -257,47 +216,15 @@ static int do_drive_get_GTF(ide_drive_t *drive,
acpi_status status;
struct acpi_buffer output;
union acpi_object *out_obj;
- ide_hwif_t *hwif = drive->hwif;
- struct device *dev = hwif->gendev.parent;
int err = -ENODEV;
- int port;
*gtf_length = 0;
*gtf_address = 0UL;
*obj_loc = 0UL;
- if (ide_noacpi)
- return 0;
-
- if (!dev) {
- DEBPRINT("no PCI device for %s\n", hwif->name);
- goto out;
- }
-
- if (!hwif->acpidata) {
- DEBPRINT("no ACPI data for %s\n", hwif->name);
- goto out;
- }
-
- port = hwif->channel ? drive->dn - 2: drive->dn;
-
- DEBPRINT("ENTER: %s at %s, port#: %d, hard_port#: %d\n",
- hwif->name, dev_name(dev), port, hwif->channel);
-
- if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0) {
- DEBPRINT("%s drive %d:%d not present\n",
- hwif->name, hwif->channel, port);
- goto out;
- }
-
- /* Get this drive's _ADR info. if not already known. */
if (!drive->acpidata->obj_handle) {
- drive->acpidata->obj_handle = ide_acpi_drive_get_handle(drive);
- if (!drive->acpidata->obj_handle) {
- DEBPRINT("No ACPI object found for %s\n",
- drive->name);
- goto out;
- }
+ DEBPRINT("No ACPI object found for %s\n", drive->name);
+ goto out;
}
/* Setting up output buffer */
@@ -355,43 +282,6 @@ out:
}
/**
- * taskfile_load_raw - send taskfile registers to drive
- * @drive: drive to which output is sent
- * @gtf: raw ATA taskfile register set (0x1f1 - 0x1f7)
- *
- * Outputs IDE taskfile to the drive.
- */
-static int taskfile_load_raw(ide_drive_t *drive,
- const struct taskfile_array *gtf)
-{
- ide_task_t args;
- int err = 0;
-
- DEBPRINT("(0x1f1-1f7): hex: "
- "%02x %02x %02x %02x %02x %02x %02x\n",
- gtf->tfa[0], gtf->tfa[1], gtf->tfa[2],
- gtf->tfa[3], gtf->tfa[4], gtf->tfa[5], gtf->tfa[6]);
-
- memset(&args, 0, sizeof(ide_task_t));
-
- /* convert gtf to IDE Taskfile */
- memcpy(&args.tf_array[7], >f->tfa, 7);
- args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
-
- if (!ide_acpigtf) {
- DEBPRINT("_GTF execution disabled\n");
- return err;
- }
-
- err = ide_no_data_taskfile(drive, &args);
- if (err)
- printk(KERN_ERR "%s: ide_no_data_taskfile failed: %u\n",
- __func__, err);
-
- return err;
-}
-
-/**
* do_drive_set_taskfiles - write the drive taskfile settings from _GTF
* @drive: the drive to which the taskfile command should be sent
* @gtf_length: total number of bytes of _GTF taskfiles
@@ -404,43 +294,41 @@ static int do_drive_set_taskfiles(ide_drive_t *drive,
unsigned int gtf_length,
unsigned long gtf_address)
{
- int rc = -ENODEV, err;
+ int rc = 0, err;
int gtf_count = gtf_length / REGS_PER_GTF;
int ix;
- struct taskfile_array *gtf;
-
- if (ide_noacpi)
- return 0;
-
- DEBPRINT("ENTER: %s, hard_port#: %d\n", drive->name, drive->dn);
-
- if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
- goto out;
-
- if (!gtf_count) /* shouldn't be here */
- goto out;
DEBPRINT("total GTF bytes=%u (0x%x), gtf_count=%d, addr=0x%lx\n",
gtf_length, gtf_length, gtf_count, gtf_address);
- if (gtf_length % REGS_PER_GTF) {
- printk(KERN_ERR "%s: unexpected GTF length (%d)\n",
- __func__, gtf_length);
- goto out;
- }
-
- rc = 0;
+ /* send all taskfile registers (0x1f1-0x1f7) *in*that*order* */
for (ix = 0; ix < gtf_count; ix++) {
- gtf = (struct taskfile_array *)
- (gtf_address + ix * REGS_PER_GTF);
+ u8 *gtf = (u8 *)(gtf_address + ix * REGS_PER_GTF);
+ ide_task_t task;
- /* send all TaskFile registers (0x1f1-0x1f7) *in*that*order* */
- err = taskfile_load_raw(drive, gtf);
- if (err)
+ DEBPRINT("(0x1f1-1f7): "
+ "hex: %02x %02x %02x %02x %02x %02x %02x\n",
+ gtf[0], gtf[1], gtf[2],
+ gtf[3], gtf[4], gtf[5], gtf[6]);
+
+ if (!ide_acpigtf) {
+ DEBPRINT("_GTF execution disabled\n");
+ continue;
+ }
+
+ /* convert GTF to taskfile */
+ memset(&task, 0, sizeof(ide_task_t));
+ memcpy(&task.tf_array[7], gtf, REGS_PER_GTF);
+ task.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+
+ err = ide_no_data_taskfile(drive, &task);
+ if (err) {
+ printk(KERN_ERR "%s: ide_no_data_taskfile failed: %u\n",
+ __func__, err);
rc = err;
+ }
}
-out:
return rc;
}
@@ -647,26 +535,23 @@ void ide_acpi_set_state(ide_hwif_t *hwif, int on)
DEBPRINT("no ACPI data for %s\n", hwif->name);
return;
}
+
/* channel first and then drives for power on and verse versa for power off */
if (on)
acpi_bus_set_power(hwif->acpidata->obj_handle, ACPI_STATE_D0);
- ide_port_for_each_dev(i, drive, hwif) {
- if (!drive->acpidata->obj_handle)
- drive->acpidata->obj_handle = ide_acpi_drive_get_handle(drive);
-
- if (drive->acpidata->obj_handle &&
- (drive->dev_flags & IDE_DFLAG_PRESENT)) {
+ ide_port_for_each_present_dev(i, drive, hwif) {
+ if (drive->acpidata->obj_handle)
acpi_bus_set_power(drive->acpidata->obj_handle,
- on? ACPI_STATE_D0: ACPI_STATE_D3);
- }
+ on ? ACPI_STATE_D0 : ACPI_STATE_D3);
}
+
if (!on)
acpi_bus_set_power(hwif->acpidata->obj_handle, ACPI_STATE_D3);
}
/**
- * ide_acpi_init - initialize the ACPI link for an IDE interface
+ * ide_acpi_init_port - initialize the ACPI link for an IDE interface
* @hwif: target IDE interface (channel)
*
* The ACPI spec is not quite clear when the drive identify buffer
@@ -676,10 +561,8 @@ void ide_acpi_set_state(ide_hwif_t *hwif, int on)
* So we get the information during startup; but this means that
* any changes during run-time will be lost after resume.
*/
-void ide_acpi_init(ide_hwif_t *hwif)
+void ide_acpi_init_port(ide_hwif_t *hwif)
{
- ide_acpi_blacklist();
-
hwif->acpidata = kzalloc(sizeof(struct ide_acpi_hwif_link), GFP_KERNEL);
if (!hwif->acpidata)
return;
@@ -708,15 +591,24 @@ void ide_acpi_port_init_devices(ide_hwif_t *hwif)
hwif->devices[0]->acpidata = &hwif->acpidata->master;
hwif->devices[1]->acpidata = &hwif->acpidata->slave;
- /*
- * Send IDENTIFY for each drive
- */
- ide_port_for_each_dev(i, drive, hwif) {
- memset(drive->acpidata, 0, sizeof(*drive->acpidata));
+ /* get _ADR info for each device */
+ ide_port_for_each_present_dev(i, drive, hwif) {
+ acpi_handle dev_handle;
- if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
- continue;
+ DEBPRINT("ENTER: %s at channel#: %d port#: %d\n",
+ drive->name, hwif->channel, drive->dn & 1);
+
+ /* TBD: could also check ACPI object VALID bits */
+ dev_handle = acpi_get_child(hwif->acpidata->obj_handle,
+ drive->dn & 1);
+
+ DEBPRINT("drive %s handle 0x%p\n", drive->name, dev_handle);
+
+ drive->acpidata->obj_handle = dev_handle;
+ }
+ /* send IDENTIFY for each device */
+ ide_port_for_each_present_dev(i, drive, hwif) {
err = taskfile_lib_get_identify(drive, drive->acpidata->idbuff);
if (err)
DEBPRINT("identify device %s failed (%d)\n",
@@ -736,9 +628,7 @@ void ide_acpi_port_init_devices(ide_hwif_t *hwif)
ide_acpi_get_timing(hwif);
ide_acpi_push_timing(hwif);
- ide_port_for_each_dev(i, drive, hwif) {
- if (drive->dev_flags & IDE_DFLAG_PRESENT)
- /* Execute ACPI startup code */
- ide_acpi_exec_tfs(drive);
+ ide_port_for_each_present_dev(i, drive, hwif) {
+ ide_acpi_exec_tfs(drive);
}
}
diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index e9d042d..6adc5b4 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -149,7 +149,10 @@ static void ide_queue_pc_head(ide_drive_t *drive, struct gendisk *disk,
memcpy(rq->cmd, pc->c, 12);
if (drive->media == ide_tape)
rq->cmd[13] = REQ_IDETAPE_PC1;
- ide_do_drive_cmd(drive, rq);
+
+ drive->hwif->rq = NULL;
+
+ elv_add_request(drive->queue, rq, ELEVATOR_INSERT_FRONT, 0);
}
/*
@@ -297,6 +300,21 @@ int ide_cd_get_xferlen(struct request *rq)
}
EXPORT_SYMBOL_GPL(ide_cd_get_xferlen);
+void ide_read_bcount_and_ireason(ide_drive_t *drive, u16 *bcount, u8 *ireason)
+{
+ ide_task_t task;
+
+ memset(&task, 0, sizeof(task));
+ task.tf_flags = IDE_TFLAG_IN_LBAH | IDE_TFLAG_IN_LBAM |
+ IDE_TFLAG_IN_NSECT;
+
+ drive->hwif->tp_ops->tf_read(drive, &task);
+
+ *bcount = (task.tf.lbah << 8) | task.tf.lbam;
+ *ireason = task.tf.nsect & 3;
+}
+EXPORT_SYMBOL_GPL(ide_read_bcount_and_ireason);
+
/*
* This is the usual interrupt handler which will be called during a packet
* command. We will transfer some of the data (as requested by the drive)
@@ -456,6 +474,25 @@ next_irq:
return ide_started;
}
+static void ide_pktcmd_tf_load(ide_drive_t *drive, u32 tf_flags, u16 bcount)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ ide_task_t task;
+ u8 dma = drive->dma;
+
+ memset(&task, 0, sizeof(task));
+ task.tf_flags = IDE_TFLAG_OUT_LBAH | IDE_TFLAG_OUT_LBAM |
+ IDE_TFLAG_OUT_FEATURE | tf_flags;
+ task.tf.feature = dma; /* Use PIO/DMA */
+ task.tf.lbam = bcount & 0xff;
+ task.tf.lbah = (bcount >> 8) & 0xff;
+
+ ide_tf_dump(drive->name, &task.tf);
+ hwif->tp_ops->set_irq(hwif, 1);
+ SELECT_MASK(drive, 0);
+ hwif->tp_ops->tf_load(drive, &task);
+}
+
static u8 ide_read_ireason(ide_drive_t *drive)
{
ide_task_t task;
@@ -629,7 +666,7 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive)
: WAIT_TAPE_CMD;
}
- ide_pktcmd_tf_load(drive, tf_flags, bcount, drive->dma);
+ ide_pktcmd_tf_load(drive, tf_flags, bcount);
/* Issue the packet command */
if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) {
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index ddfbea4..2177cd1 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -242,7 +242,9 @@ static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense,
ide_debug_log(IDE_DBG_SENSE, "failed_cmd: 0x%x\n",
failed_command->cmd[0]);
- ide_do_drive_cmd(drive, rq);
+ drive->hwif->rq = NULL;
+
+ elv_add_request(drive->queue, rq, ELEVATOR_INSERT_FRONT, 0);
}
static void cdrom_end_request(ide_drive_t *drive, int uptodate)
diff --git a/drivers/ide/ide-devsets.c b/drivers/ide/ide-devsets.c
new file mode 100644
index 0000000..7c39534
--- /dev/null
+++ b/drivers/ide/ide-devsets.c
@@ -0,0 +1,190 @@
+
+#include <linux/kernel.h>
+#include <linux/ide.h>
+
+DEFINE_MUTEX(ide_setting_mtx);
+
+ide_devset_get(io_32bit, io_32bit);
+
+static int set_io_32bit(ide_drive_t *drive, int arg)
+{
+ if (drive->dev_flags & IDE_DFLAG_NO_IO_32BIT)
+ return -EPERM;
+
+ if (arg < 0 || arg > 1 + (SUPPORT_VLB_SYNC << 1))
+ return -EINVAL;
+
+ drive->io_32bit = arg;
+
+ return 0;
+}
+
+ide_devset_get_flag(ksettings, IDE_DFLAG_KEEP_SETTINGS);
+
+static int set_ksettings(ide_drive_t *drive, int arg)
+{
+ if (arg < 0 || arg > 1)
+ return -EINVAL;
+
+ if (arg)
+ drive->dev_flags |= IDE_DFLAG_KEEP_SETTINGS;
+ else
+ drive->dev_flags &= ~IDE_DFLAG_KEEP_SETTINGS;
+
+ return 0;
+}
+
+ide_devset_get_flag(using_dma, IDE_DFLAG_USING_DMA);
+
+static int set_using_dma(ide_drive_t *drive, int arg)
+{
+#ifdef CONFIG_BLK_DEV_IDEDMA
+ int err = -EPERM;
+
+ if (arg < 0 || arg > 1)
+ return -EINVAL;
+
+ if (ata_id_has_dma(drive->id) == 0)
+ goto out;
+
+ if (drive->hwif->dma_ops == NULL)
+ goto out;
+
+ err = 0;
+
+ if (arg) {
+ if (ide_set_dma(drive))
+ err = -EIO;
+ } else
+ ide_dma_off(drive);
+
+out:
+ return err;
+#else
+ if (arg < 0 || arg > 1)
+ return -EINVAL;
+
+ return -EPERM;
+#endif
+}
+
+/*
+ * handle HDIO_SET_PIO_MODE ioctl abusers here, eventually it will go away
+ */
+static int set_pio_mode_abuse(ide_hwif_t *hwif, u8 req_pio)
+{
+ switch (req_pio) {
+ case 202:
+ case 201:
+ case 200:
+ case 102:
+ case 101:
+ case 100:
+ return (hwif->host_flags & IDE_HFLAG_ABUSE_DMA_MODES) ? 1 : 0;
+ case 9:
+ case 8:
+ return (hwif->host_flags & IDE_HFLAG_ABUSE_PREFETCH) ? 1 : 0;
+ case 7:
+ case 6:
+ return (hwif->host_flags & IDE_HFLAG_ABUSE_FAST_DEVSEL) ? 1 : 0;
+ default:
+ return 0;
+ }
+}
+
+static int set_pio_mode(ide_drive_t *drive, int arg)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ const struct ide_port_ops *port_ops = hwif->port_ops;
+
+ if (arg < 0 || arg > 255)
+ return -EINVAL;
+
+ if (port_ops == NULL || port_ops->set_pio_mode == NULL ||
+ (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
+ return -ENOSYS;
+
+ if (set_pio_mode_abuse(drive->hwif, arg)) {
+ if (arg == 8 || arg == 9) {
+ unsigned long flags;
+
+ /* take lock for IDE_DFLAG_[NO_]UNMASK/[NO_]IO_32BIT */
+ spin_lock_irqsave(&hwif->lock, flags);
+ port_ops->set_pio_mode(drive, arg);
+ spin_unlock_irqrestore(&hwif->lock, flags);
+ } else
+ port_ops->set_pio_mode(drive, arg);
+ } else {
+ int keep_dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
+
+ ide_set_pio(drive, arg);
+
+ if (hwif->host_flags & IDE_HFLAG_SET_PIO_MODE_KEEP_DMA) {
+ if (keep_dma)
+ ide_dma_on(drive);
+ }
+ }
+
+ return 0;
+}
+
+ide_devset_get_flag(unmaskirq, IDE_DFLAG_UNMASK);
+
+static int set_unmaskirq(ide_drive_t *drive, int arg)
+{
+ if (drive->dev_flags & IDE_DFLAG_NO_UNMASK)
+ return -EPERM;
+
+ if (arg < 0 || arg > 1)
+ return -EINVAL;
+
+ if (arg)
+ drive->dev_flags |= IDE_DFLAG_UNMASK;
+ else
+ drive->dev_flags &= ~IDE_DFLAG_UNMASK;
+
+ return 0;
+}
+
+ide_ext_devset_rw_sync(io_32bit, io_32bit);
+ide_ext_devset_rw_sync(keepsettings, ksettings);
+ide_ext_devset_rw_sync(unmaskirq, unmaskirq);
+ide_ext_devset_rw_sync(using_dma, using_dma);
+__IDE_DEVSET(pio_mode, DS_SYNC, NULL, set_pio_mode);
+
+int ide_devset_execute(ide_drive_t *drive, const struct ide_devset *setting,
+ int arg)
+{
+ struct request_queue *q = drive->queue;
+ struct request *rq;
+ int ret = 0;
+
+ if (!(setting->flags & DS_SYNC))
+ return setting->set(drive, arg);
+
+ rq = blk_get_request(q, READ, __GFP_WAIT);
+ rq->cmd_type = REQ_TYPE_SPECIAL;
+ rq->cmd_len = 5;
+ rq->cmd[0] = REQ_DEVSET_EXEC;
+ *(int *)&rq->cmd[1] = arg;
+ rq->special = setting->set;
+
+ if (blk_execute_rq(q, NULL, rq, 0))
+ ret = rq->errors;
+ blk_put_request(rq);
+
+ return ret;
+}
+
+ide_startstop_t ide_do_devset(ide_drive_t *drive, struct request *rq)
+{
+ int err, (*setfunc)(ide_drive_t *, int) = rq->special;
+
+ err = setfunc(drive, *(int *)&rq->cmd[1]);
+ if (err)
+ rq->errors = err;
+ else
+ err = 1;
+ ide_end_request(drive, err, 0);
+ return ide_stopped;
+}
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 059c90b..a878f47 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -470,6 +470,63 @@ void ide_dma_timeout(ide_drive_t *drive)
}
EXPORT_SYMBOL_GPL(ide_dma_timeout);
+/*
+ * un-busy the port etc, and clear any pending DMA status. we want to
+ * retry the current request in pio mode instead of risking tossing it
+ * all away
+ */
+ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ struct request *rq;
+ ide_startstop_t ret = ide_stopped;
+
+ /*
+ * end current dma transaction
+ */
+
+ if (error < 0) {
+ printk(KERN_WARNING "%s: DMA timeout error\n", drive->name);
+ (void)hwif->dma_ops->dma_end(drive);
+ ret = ide_error(drive, "dma timeout error",
+ hwif->tp_ops->read_status(hwif));
+ } else {
+ printk(KERN_WARNING "%s: DMA timeout retry\n", drive->name);
+ hwif->dma_ops->dma_timeout(drive);
+ }
+
+ /*
+ * disable dma for now, but remember that we did so because of
+ * a timeout -- we'll reenable after we finish this next request
+ * (or rather the first chunk of it) in pio.
+ */
+ drive->dev_flags |= IDE_DFLAG_DMA_PIO_RETRY;
+ drive->retry_pio++;
+ ide_dma_off_quietly(drive);
+
+ /*
+ * un-busy drive etc and make sure request is sane
+ */
+
+ rq = hwif->rq;
+ if (!rq)
+ goto out;
+
+ hwif->rq = NULL;
+
+ rq->errors = 0;
+
+ if (!rq->bio)
+ goto out;
+
+ rq->sector = rq->bio->bi_sector;
+ rq->current_nr_sectors = bio_iovec(rq->bio)->bv_len >> 9;
+ rq->hard_cur_sectors = rq->current_nr_sectors;
+ rq->buffer = bio_data(rq->bio);
+out:
+ return ret;
+}
+
void ide_release_dma_engine(ide_hwif_t *hwif)
{
if (hwif->dmatable_cpu) {
diff --git a/drivers/ide/ide-eh.c b/drivers/ide/ide-eh.c
new file mode 100644
index 0000000..1231b5e
--- /dev/null
+++ b/drivers/ide/ide-eh.c
@@ -0,0 +1,428 @@
+
+#include <linux/kernel.h>
+#include <linux/ide.h>
+#include <linux/delay.h>
+
+static ide_startstop_t ide_ata_error(ide_drive_t *drive, struct request *rq,
+ u8 stat, u8 err)
+{
+ ide_hwif_t *hwif = drive->hwif;
+
+ if ((stat & ATA_BUSY) ||
+ ((stat & ATA_DF) && (drive->dev_flags & IDE_DFLAG_NOWERR) == 0)) {
+ /* other bits are useless when BUSY */
+ rq->errors |= ERROR_RESET;
+ } else if (stat & ATA_ERR) {
+ /* err has different meaning on cdrom and tape */
+ if (err == ATA_ABORTED) {
+ if ((drive->dev_flags & IDE_DFLAG_LBA) &&
+ /* some newer drives don't support ATA_CMD_INIT_DEV_PARAMS */
+ hwif->tp_ops->read_status(hwif) == ATA_CMD_INIT_DEV_PARAMS)
+ return ide_stopped;
+ } else if ((err & BAD_CRC) == BAD_CRC) {
+ /* UDMA crc error, just retry the operation */
+ drive->crc_count++;
+ } else if (err & (ATA_BBK | ATA_UNC)) {
+ /* retries won't help these */
+ rq->errors = ERROR_MAX;
+ } else if (err & ATA_TRK0NF) {
+ /* help it find track zero */
+ rq->errors |= ERROR_RECAL;
+ }
+ }
+
+ if ((stat & ATA_DRQ) && rq_data_dir(rq) == READ &&
+ (hwif->host_flags & IDE_HFLAG_ERROR_STOPS_FIFO) == 0) {
+ int nsect = drive->mult_count ? drive->mult_count : 1;
+
+ ide_pad_transfer(drive, READ, nsect * SECTOR_SIZE);
+ }
+
+ if (rq->errors >= ERROR_MAX || blk_noretry_request(rq)) {
+ ide_kill_rq(drive, rq);
+ return ide_stopped;
+ }
+
+ if (hwif->tp_ops->read_status(hwif) & (ATA_BUSY | ATA_DRQ))
+ rq->errors |= ERROR_RESET;
+
+ if ((rq->errors & ERROR_RESET) == ERROR_RESET) {
+ ++rq->errors;
+ return ide_do_reset(drive);
+ }
+
+ if ((rq->errors & ERROR_RECAL) == ERROR_RECAL)
+ drive->special.b.recalibrate = 1;
+
+ ++rq->errors;
+
+ return ide_stopped;
+}
+
+static ide_startstop_t ide_atapi_error(ide_drive_t *drive, struct request *rq,
+ u8 stat, u8 err)
+{
+ ide_hwif_t *hwif = drive->hwif;
+
+ if ((stat & ATA_BUSY) ||
+ ((stat & ATA_DF) && (drive->dev_flags & IDE_DFLAG_NOWERR) == 0)) {
+ /* other bits are useless when BUSY */
+ rq->errors |= ERROR_RESET;
+ } else {
+ /* add decoding error stuff */
+ }
+
+ if (hwif->tp_ops->read_status(hwif) & (ATA_BUSY | ATA_DRQ))
+ /* force an abort */
+ hwif->tp_ops->exec_command(hwif, ATA_CMD_IDLEIMMEDIATE);
+
+ if (rq->errors >= ERROR_MAX) {
+ ide_kill_rq(drive, rq);
+ } else {
+ if ((rq->errors & ERROR_RESET) == ERROR_RESET) {
+ ++rq->errors;
+ return ide_do_reset(drive);
+ }
+ ++rq->errors;
+ }
+
+ return ide_stopped;
+}
+
+static ide_startstop_t __ide_error(ide_drive_t *drive, struct request *rq,
+ u8 stat, u8 err)
+{
+ if (drive->media == ide_disk)
+ return ide_ata_error(drive, rq, stat, err);
+ return ide_atapi_error(drive, rq, stat, err);
+}
+
+/**
+ * ide_error - handle an error on the IDE
+ * @drive: drive the error occurred on
+ * @msg: message to report
+ * @stat: status bits
+ *
+ * ide_error() takes action based on the error returned by the drive.
+ * For normal I/O that may well include retries. We deal with
+ * both new-style (taskfile) and old style command handling here.
+ * In the case of taskfile command handling there is work left to
+ * do
+ */
+
+ide_startstop_t ide_error(ide_drive_t *drive, const char *msg, u8 stat)
+{
+ struct request *rq;
+ u8 err;
+
+ err = ide_dump_status(drive, msg, stat);
+
+ rq = drive->hwif->rq;
+ if (rq == NULL)
+ return ide_stopped;
+
+ /* retry only "normal" I/O: */
+ if (!blk_fs_request(rq)) {
+ rq->errors = 1;
+ ide_end_drive_cmd(drive, stat, err);
+ return ide_stopped;
+ }
+
+ return __ide_error(drive, rq, stat, err);
+}
+EXPORT_SYMBOL_GPL(ide_error);
+
+static inline void ide_complete_drive_reset(ide_drive_t *drive, int err)
+{
+ struct request *rq = drive->hwif->rq;
+
+ if (rq && blk_special_request(rq) && rq->cmd[0] == REQ_DRIVE_RESET)
+ ide_end_request(drive, err ? err : 1, 0);
+}
+
+/* needed below */
+static ide_startstop_t do_reset1(ide_drive_t *, int);
+
+/*
+ * atapi_reset_pollfunc() gets invoked to poll the interface for completion
+ * every 50ms during an atapi drive reset operation. If the drive has not yet
+ * responded, and we have not yet hit our maximum waiting time, then the timer
+ * is restarted for another 50ms.
+ */
+static ide_startstop_t atapi_reset_pollfunc(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ u8 stat;
+
+ SELECT_DRIVE(drive);
+ udelay(10);
+ stat = hwif->tp_ops->read_status(hwif);
+
+ if (OK_STAT(stat, 0, ATA_BUSY))
+ printk(KERN_INFO "%s: ATAPI reset complete\n", drive->name);
+ else {
+ if (time_before(jiffies, hwif->poll_timeout)) {
+ ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20,
+ NULL);
+ /* continue polling */
+ return ide_started;
+ }
+ /* end of polling */
+ hwif->polling = 0;
+ printk(KERN_ERR "%s: ATAPI reset timed-out, status=0x%02x\n",
+ drive->name, stat);
+ /* do it the old fashioned way */
+ return do_reset1(drive, 1);
+ }
+ /* done polling */
+ hwif->polling = 0;
+ ide_complete_drive_reset(drive, 0);
+ return ide_stopped;
+}
+
+static void ide_reset_report_error(ide_hwif_t *hwif, u8 err)
+{
+ static const char *err_master_vals[] =
+ { NULL, "passed", "formatter device error",
+ "sector buffer error", "ECC circuitry error",
+ "controlling MPU error" };
+
+ u8 err_master = err & 0x7f;
+
+ printk(KERN_ERR "%s: reset: master: ", hwif->name);
+ if (err_master && err_master < 6)
+ printk(KERN_CONT "%s", err_master_vals[err_master]);
+ else
+ printk(KERN_CONT "error (0x%02x?)", err);
+ if (err & 0x80)
+ printk(KERN_CONT "; slave: failed");
+ printk(KERN_CONT "\n");
+}
+
+/*
+ * reset_pollfunc() gets invoked to poll the interface for completion every 50ms
+ * during an ide reset operation. If the drives have not yet responded,
+ * and we have not yet hit our maximum waiting time, then the timer is restarted
+ * for another 50ms.
+ */
+static ide_startstop_t reset_pollfunc(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ const struct ide_port_ops *port_ops = hwif->port_ops;
+ u8 tmp;
+ int err = 0;
+
+ if (port_ops && port_ops->reset_poll) {
+ err = port_ops->reset_poll(drive);
+ if (err) {
+ printk(KERN_ERR "%s: host reset_poll failure for %s.\n",
+ hwif->name, drive->name);
+ goto out;
+ }
+ }
+
+ tmp = hwif->tp_ops->read_status(hwif);
+
+ if (!OK_STAT(tmp, 0, ATA_BUSY)) {
+ if (time_before(jiffies, hwif->poll_timeout)) {
+ ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
+ /* continue polling */
+ return ide_started;
+ }
+ printk(KERN_ERR "%s: reset timed-out, status=0x%02x\n",
+ hwif->name, tmp);
+ drive->failures++;
+ err = -EIO;
+ } else {
+ tmp = ide_read_error(drive);
+
+ if (tmp == 1) {
+ printk(KERN_INFO "%s: reset: success\n", hwif->name);
+ drive->failures = 0;
+ } else {
+ ide_reset_report_error(hwif, tmp);
+ drive->failures++;
+ err = -EIO;
+ }
+ }
+out:
+ hwif->polling = 0; /* done polling */
+ ide_complete_drive_reset(drive, err);
+ return ide_stopped;
+}
+
+static void ide_disk_pre_reset(ide_drive_t *drive)
+{
+ int legacy = (drive->id[ATA_ID_CFS_ENABLE_2] & 0x0400) ? 0 : 1;
+
+ drive->special.all = 0;
+ drive->special.b.set_geometry = legacy;
+ drive->special.b.recalibrate = legacy;
+
+ drive->mult_count = 0;
+ drive->dev_flags &= ~IDE_DFLAG_PARKED;
+
+ if ((drive->dev_flags & IDE_DFLAG_KEEP_SETTINGS) == 0 &&
+ (drive->dev_flags & IDE_DFLAG_USING_DMA) == 0)
+ drive->mult_req = 0;
+
+ if (drive->mult_req != drive->mult_count)
+ drive->special.b.set_multmode = 1;
+}
+
+static void pre_reset(ide_drive_t *drive)
+{
+ const struct ide_port_ops *port_ops = drive->hwif->port_ops;
+
+ if (drive->media == ide_disk)
+ ide_disk_pre_reset(drive);
+ else
+ drive->dev_flags |= IDE_DFLAG_POST_RESET;
+
+ if (drive->dev_flags & IDE_DFLAG_USING_DMA) {
+ if (drive->crc_count)
+ ide_check_dma_crc(drive);
+ else
+ ide_dma_off(drive);
+ }
+
+ if ((drive->dev_flags & IDE_DFLAG_KEEP_SETTINGS) == 0) {
+ if ((drive->dev_flags & IDE_DFLAG_USING_DMA) == 0) {
+ drive->dev_flags &= ~IDE_DFLAG_UNMASK;
+ drive->io_32bit = 0;
+ }
+ return;
+ }
+
+ if (port_ops && port_ops->pre_reset)
+ port_ops->pre_reset(drive);
+
+ if (drive->current_speed != 0xff)
+ drive->desired_speed = drive->current_speed;
+ drive->current_speed = 0xff;
+}
+
+/*
+ * do_reset1() attempts to recover a confused drive by resetting it.
+ * Unfortunately, resetting a disk drive actually resets all devices on
+ * the same interface, so it can really be thought of as resetting the
+ * interface rather than resetting the drive.
+ *
+ * ATAPI devices have their own reset mechanism which allows them to be
+ * individually reset without clobbering other devices on the same interface.
+ *
+ * Unfortunately, the IDE interface does not generate an interrupt to let
+ * us know when the reset operation has finished, so we must poll for this.
+ * Equally poor, though, is the fact that this may a very long time to complete,
+ * (up to 30 seconds worstcase). So, instead of busy-waiting here for it,
+ * we set a timer to poll at 50ms intervals.
+ */
+static ide_startstop_t do_reset1(ide_drive_t *drive, int do_not_try_atapi)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ struct ide_io_ports *io_ports = &hwif->io_ports;
+ const struct ide_tp_ops *tp_ops = hwif->tp_ops;
+ const struct ide_port_ops *port_ops;
+ ide_drive_t *tdrive;
+ unsigned long flags, timeout;
+ int i;
+ DEFINE_WAIT(wait);
+
+ spin_lock_irqsave(&hwif->lock, flags);
+
+ /* We must not reset with running handlers */
+ BUG_ON(hwif->handler != NULL);
+
+ /* For an ATAPI device, first try an ATAPI SRST. */
+ if (drive->media != ide_disk && !do_not_try_atapi) {
+ pre_reset(drive);
+ SELECT_DRIVE(drive);
+ udelay(20);
+ tp_ops->exec_command(hwif, ATA_CMD_DEV_RESET);
+ ndelay(400);
+ hwif->poll_timeout = jiffies + WAIT_WORSTCASE;
+ hwif->polling = 1;
+ __ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20, NULL);
+ spin_unlock_irqrestore(&hwif->lock, flags);
+ return ide_started;
+ }
+
+ /* We must not disturb devices in the IDE_DFLAG_PARKED state. */
+ do {
+ unsigned long now;
+
+ prepare_to_wait(&ide_park_wq, &wait, TASK_UNINTERRUPTIBLE);
+ timeout = jiffies;
+ ide_port_for_each_present_dev(i, tdrive, hwif) {
+ if ((tdrive->dev_flags & IDE_DFLAG_PARKED) &&
+ time_after(tdrive->sleep, timeout))
+ timeout = tdrive->sleep;
+ }
+
+ now = jiffies;
+ if (time_before_eq(timeout, now))
+ break;
+
+ spin_unlock_irqrestore(&hwif->lock, flags);
+ timeout = schedule_timeout_uninterruptible(timeout - now);
+ spin_lock_irqsave(&hwif->lock, flags);
+ } while (timeout);
+ finish_wait(&ide_park_wq, &wait);
+
+ /*
+ * First, reset any device state data we were maintaining
+ * for any of the drives on this interface.
+ */
+ ide_port_for_each_dev(i, tdrive, hwif)
+ pre_reset(tdrive);
+
+ if (io_ports->ctl_addr == 0) {
+ spin_unlock_irqrestore(&hwif->lock, flags);
+ ide_complete_drive_reset(drive, -ENXIO);
+ return ide_stopped;
+ }
+
+ /*
+ * Note that we also set nIEN while resetting the device,
+ * to mask unwanted interrupts from the interface during the reset.
+ * However, due to the design of PC hardware, this will cause an
+ * immediate interrupt due to the edge transition it produces.
+ * This single interrupt gives us a "fast poll" for drives that
+ * recover from reset very quickly, saving us the first 50ms wait time.
+ *
+ * TODO: add ->softreset method and stop abusing ->set_irq
+ */
+ /* set SRST and nIEN */
+ tp_ops->set_irq(hwif, 4);
+ /* more than enough time */
+ udelay(10);
+ /* clear SRST, leave nIEN (unless device is on the quirk list) */
+ tp_ops->set_irq(hwif, drive->quirk_list == 2);
+ /* more than enough time */
+ udelay(10);
+ hwif->poll_timeout = jiffies + WAIT_WORSTCASE;
+ hwif->polling = 1;
+ __ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
+
+ /*
+ * Some weird controller like resetting themselves to a strange
+ * state when the disks are reset this way. At least, the Winbond
+ * 553 documentation says that
+ */
+ port_ops = hwif->port_ops;
+ if (port_ops && port_ops->resetproc)
+ port_ops->resetproc(drive);
+
+ spin_unlock_irqrestore(&hwif->lock, flags);
+ return ide_started;
+}
+
+/*
+ * ide_do_reset() is the entry point to the drive/interface reset code.
+ */
+
+ide_startstop_t ide_do_reset(ide_drive_t *drive)
+{
+ return do_reset1(drive, 0);
+}
+EXPORT_SYMBOL(ide_do_reset);
diff --git a/drivers/ide/ide-io-std.c b/drivers/ide/ide-io-std.c
new file mode 100644
index 0000000..45b43dd
--- /dev/null
+++ b/drivers/ide/ide-io-std.c
@@ -0,0 +1,316 @@
+
+#include <linux/kernel.h>
+#include <linux/ide.h>
+
+/*
+ * Conventional PIO operations for ATA devices
+ */
+
+static u8 ide_inb(unsigned long port)
+{
+ return (u8) inb(port);
+}
+
+static void ide_outb(u8 val, unsigned long port)
+{
+ outb(val, port);
+}
+
+/*
+ * MMIO operations, typically used for SATA controllers
+ */
+
+static u8 ide_mm_inb(unsigned long port)
+{
+ return (u8) readb((void __iomem *) port);
+}
+
+static void ide_mm_outb(u8 value, unsigned long port)
+{
+ writeb(value, (void __iomem *) port);
+}
+
+void ide_exec_command(ide_hwif_t *hwif, u8 cmd)
+{
+ if (hwif->host_flags & IDE_HFLAG_MMIO)
+ writeb(cmd, (void __iomem *)hwif->io_ports.command_addr);
+ else
+ outb(cmd, hwif->io_ports.command_addr);
+}
+EXPORT_SYMBOL_GPL(ide_exec_command);
+
+u8 ide_read_status(ide_hwif_t *hwif)
+{
+ if (hwif->host_flags & IDE_HFLAG_MMIO)
+ return readb((void __iomem *)hwif->io_ports.status_addr);
+ else
+ return inb(hwif->io_ports.status_addr);
+}
+EXPORT_SYMBOL_GPL(ide_read_status);
+
+u8 ide_read_altstatus(ide_hwif_t *hwif)
+{
+ if (hwif->host_flags & IDE_HFLAG_MMIO)
+ return readb((void __iomem *)hwif->io_ports.ctl_addr);
+ else
+ return inb(hwif->io_ports.ctl_addr);
+}
+EXPORT_SYMBOL_GPL(ide_read_altstatus);
+
+void ide_set_irq(ide_hwif_t *hwif, int on)
+{
+ u8 ctl = ATA_DEVCTL_OBS;
+
+ if (on == 4) { /* hack for SRST */
+ ctl |= 4;
+ on &= ~4;
+ }
+
+ ctl |= on ? 0 : 2;
+
+ if (hwif->host_flags & IDE_HFLAG_MMIO)
+ writeb(ctl, (void __iomem *)hwif->io_ports.ctl_addr);
+ else
+ outb(ctl, hwif->io_ports.ctl_addr);
+}
+EXPORT_SYMBOL_GPL(ide_set_irq);
+
+void ide_tf_load(ide_drive_t *drive, ide_task_t *task)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ struct ide_io_ports *io_ports = &hwif->io_ports;
+ struct ide_taskfile *tf = &task->tf;
+ void (*tf_outb)(u8 addr, unsigned long port);
+ u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
+ u8 HIHI = (task->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
+
+ if (mmio)
+ tf_outb = ide_mm_outb;
+ else
+ tf_outb = ide_outb;
+
+ if (task->tf_flags & IDE_TFLAG_FLAGGED)
+ HIHI = 0xFF;
+
+ if (task->tf_flags & IDE_TFLAG_OUT_DATA) {
+ u16 data = (tf->hob_data << 8) | tf->data;
+
+ if (mmio)
+ writew(data, (void __iomem *)io_ports->data_addr);
+ else
+ outw(data, io_ports->data_addr);
+ }
+
+ if (task->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
+ tf_outb(tf->hob_feature, io_ports->feature_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
+ tf_outb(tf->hob_nsect, io_ports->nsect_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
+ tf_outb(tf->hob_lbal, io_ports->lbal_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
+ tf_outb(tf->hob_lbam, io_ports->lbam_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
+ tf_outb(tf->hob_lbah, io_ports->lbah_addr);
+
+ if (task->tf_flags & IDE_TFLAG_OUT_FEATURE)
+ tf_outb(tf->feature, io_ports->feature_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_NSECT)
+ tf_outb(tf->nsect, io_ports->nsect_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_LBAL)
+ tf_outb(tf->lbal, io_ports->lbal_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_LBAM)
+ tf_outb(tf->lbam, io_ports->lbam_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_LBAH)
+ tf_outb(tf->lbah, io_ports->lbah_addr);
+
+ if (task->tf_flags & IDE_TFLAG_OUT_DEVICE)
+ tf_outb((tf->device & HIHI) | drive->select,
+ io_ports->device_addr);
+}
+EXPORT_SYMBOL_GPL(ide_tf_load);
+
+void ide_tf_read(ide_drive_t *drive, ide_task_t *task)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ struct ide_io_ports *io_ports = &hwif->io_ports;
+ struct ide_taskfile *tf = &task->tf;
+ void (*tf_outb)(u8 addr, unsigned long port);
+ u8 (*tf_inb)(unsigned long port);
+ u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
+
+ if (mmio) {
+ tf_outb = ide_mm_outb;
+ tf_inb = ide_mm_inb;
+ } else {
+ tf_outb = ide_outb;
+ tf_inb = ide_inb;
+ }
+
+ if (task->tf_flags & IDE_TFLAG_IN_DATA) {
+ u16 data;
+
+ if (mmio)
+ data = readw((void __iomem *)io_ports->data_addr);
+ else
+ data = inw(io_ports->data_addr);
+
+ tf->data = data & 0xff;
+ tf->hob_data = (data >> 8) & 0xff;
+ }
+
+ /* be sure we're looking at the low order bits */
+ tf_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
+
+ if (task->tf_flags & IDE_TFLAG_IN_FEATURE)
+ tf->feature = tf_inb(io_ports->feature_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_NSECT)
+ tf->nsect = tf_inb(io_ports->nsect_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_LBAL)
+ tf->lbal = tf_inb(io_ports->lbal_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_LBAM)
+ tf->lbam = tf_inb(io_ports->lbam_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_LBAH)
+ tf->lbah = tf_inb(io_ports->lbah_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_DEVICE)
+ tf->device = tf_inb(io_ports->device_addr);
+
+ if (task->tf_flags & IDE_TFLAG_LBA48) {
+ tf_outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
+
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
+ tf->hob_feature = tf_inb(io_ports->feature_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
+ tf->hob_nsect = tf_inb(io_ports->nsect_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
+ tf->hob_lbal = tf_inb(io_ports->lbal_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
+ tf->hob_lbam = tf_inb(io_ports->lbam_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
+ tf->hob_lbah = tf_inb(io_ports->lbah_addr);
+ }
+}
+EXPORT_SYMBOL_GPL(ide_tf_read);
+
+/*
+ * Some localbus EIDE interfaces require a special access sequence
+ * when using 32-bit I/O instructions to transfer data. We call this
+ * the "vlb_sync" sequence, which consists of three successive reads
+ * of the sector count register location, with interrupts disabled
+ * to ensure that the reads all happen together.
+ */
+static void ata_vlb_sync(unsigned long port)
+{
+ (void)inb(port);
+ (void)inb(port);
+ (void)inb(port);
+}
+
+/*
+ * This is used for most PIO data transfers *from* the IDE interface
+ *
+ * These routines will round up any request for an odd number of bytes,
+ * so if an odd len is specified, be sure that there's at least one
+ * extra byte allocated for the buffer.
+ */
+void ide_input_data(ide_drive_t *drive, struct request *rq, void *buf,
+ unsigned int len)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ struct ide_io_ports *io_ports = &hwif->io_ports;
+ unsigned long data_addr = io_ports->data_addr;
+ u8 io_32bit = drive->io_32bit;
+ u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
+
+ len++;
+
+ if (io_32bit) {
+ unsigned long uninitialized_var(flags);
+
+ if ((io_32bit & 2) && !mmio) {
+ local_irq_save(flags);
+ ata_vlb_sync(io_ports->nsect_addr);
+ }
+
+ if (mmio)
+ __ide_mm_insl((void __iomem *)data_addr, buf, len / 4);
+ else
+ insl(data_addr, buf, len / 4);
+
+ if ((io_32bit & 2) && !mmio)
+ local_irq_restore(flags);
+
+ if ((len & 3) >= 2) {
+ if (mmio)
+ __ide_mm_insw((void __iomem *)data_addr,
+ (u8 *)buf + (len & ~3), 1);
+ else
+ insw(data_addr, (u8 *)buf + (len & ~3), 1);
+ }
+ } else {
+ if (mmio)
+ __ide_mm_insw((void __iomem *)data_addr, buf, len / 2);
+ else
+ insw(data_addr, buf, len / 2);
+ }
+}
+EXPORT_SYMBOL_GPL(ide_input_data);
+
+/*
+ * This is used for most PIO data transfers *to* the IDE interface
+ */
+void ide_output_data(ide_drive_t *drive, struct request *rq, void *buf,
+ unsigned int len)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ struct ide_io_ports *io_ports = &hwif->io_ports;
+ unsigned long data_addr = io_ports->data_addr;
+ u8 io_32bit = drive->io_32bit;
+ u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
+
+ len++;
+
+ if (io_32bit) {
+ unsigned long uninitialized_var(flags);
+
+ if ((io_32bit & 2) && !mmio) {
+ local_irq_save(flags);
+ ata_vlb_sync(io_ports->nsect_addr);
+ }
+
+ if (mmio)
+ __ide_mm_outsl((void __iomem *)data_addr, buf, len / 4);
+ else
+ outsl(data_addr, buf, len / 4);
+
+ if ((io_32bit & 2) && !mmio)
+ local_irq_restore(flags);
+
+ if ((len & 3) >= 2) {
+ if (mmio)
+ __ide_mm_outsw((void __iomem *)data_addr,
+ (u8 *)buf + (len & ~3), 1);
+ else
+ outsw(data_addr, (u8 *)buf + (len & ~3), 1);
+ }
+ } else {
+ if (mmio)
+ __ide_mm_outsw((void __iomem *)data_addr, buf, len / 2);
+ else
+ outsw(data_addr, buf, len / 2);
+ }
+}
+EXPORT_SYMBOL_GPL(ide_output_data);
+
+const struct ide_tp_ops default_tp_ops = {
+ .exec_command = ide_exec_command,
+ .read_status = ide_read_status,
+ .read_altstatus = ide_read_altstatus,
+
+ .set_irq = ide_set_irq,
+
+ .tf_load = ide_tf_load,
+ .tf_read = ide_tf_read,
+
+ .input_data = ide_input_data,
+ .output_data = ide_output_data,
+};
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index a9a6c20..2e92497 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -196,7 +196,7 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err)
}
EXPORT_SYMBOL(ide_end_drive_cmd);
-static void ide_kill_rq(ide_drive_t *drive, struct request *rq)
+void ide_kill_rq(ide_drive_t *drive, struct request *rq)
{
if (rq->rq_disk) {
struct ide_driver *drv;
@@ -207,133 +207,6 @@ static void ide_kill_rq(ide_drive_t *drive, struct request *rq)
ide_end_request(drive, 0, 0);
}
-static ide_startstop_t ide_ata_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err)
-{
- ide_hwif_t *hwif = drive->hwif;
-
- if ((stat & ATA_BUSY) ||
- ((stat & ATA_DF) && (drive->dev_flags & IDE_DFLAG_NOWERR) == 0)) {
- /* other bits are useless when BUSY */
- rq->errors |= ERROR_RESET;
- } else if (stat & ATA_ERR) {
- /* err has different meaning on cdrom and tape */
- if (err == ATA_ABORTED) {
- if ((drive->dev_flags & IDE_DFLAG_LBA) &&
- /* some newer drives don't support ATA_CMD_INIT_DEV_PARAMS */
- hwif->tp_ops->read_status(hwif) == ATA_CMD_INIT_DEV_PARAMS)
- return ide_stopped;
- } else if ((err & BAD_CRC) == BAD_CRC) {
- /* UDMA crc error, just retry the operation */
- drive->crc_count++;
- } else if (err & (ATA_BBK | ATA_UNC)) {
- /* retries won't help these */
- rq->errors = ERROR_MAX;
- } else if (err & ATA_TRK0NF) {
- /* help it find track zero */
- rq->errors |= ERROR_RECAL;
- }
- }
-
- if ((stat & ATA_DRQ) && rq_data_dir(rq) == READ &&
- (hwif->host_flags & IDE_HFLAG_ERROR_STOPS_FIFO) == 0) {
- int nsect = drive->mult_count ? drive->mult_count : 1;
-
- ide_pad_transfer(drive, READ, nsect * SECTOR_SIZE);
- }
-
- if (rq->errors >= ERROR_MAX || blk_noretry_request(rq)) {
- ide_kill_rq(drive, rq);
- return ide_stopped;
- }
-
- if (hwif->tp_ops->read_status(hwif) & (ATA_BUSY | ATA_DRQ))
- rq->errors |= ERROR_RESET;
-
- if ((rq->errors & ERROR_RESET) == ERROR_RESET) {
- ++rq->errors;
- return ide_do_reset(drive);
- }
-
- if ((rq->errors & ERROR_RECAL) == ERROR_RECAL)
- drive->special.b.recalibrate = 1;
-
- ++rq->errors;
-
- return ide_stopped;
-}
-
-static ide_startstop_t ide_atapi_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err)
-{
- ide_hwif_t *hwif = drive->hwif;
-
- if ((stat & ATA_BUSY) ||
- ((stat & ATA_DF) && (drive->dev_flags & IDE_DFLAG_NOWERR) == 0)) {
- /* other bits are useless when BUSY */
- rq->errors |= ERROR_RESET;
- } else {
- /* add decoding error stuff */
- }
-
- if (hwif->tp_ops->read_status(hwif) & (ATA_BUSY | ATA_DRQ))
- /* force an abort */
- hwif->tp_ops->exec_command(hwif, ATA_CMD_IDLEIMMEDIATE);
-
- if (rq->errors >= ERROR_MAX) {
- ide_kill_rq(drive, rq);
- } else {
- if ((rq->errors & ERROR_RESET) == ERROR_RESET) {
- ++rq->errors;
- return ide_do_reset(drive);
- }
- ++rq->errors;
- }
-
- return ide_stopped;
-}
-
-static ide_startstop_t
-__ide_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err)
-{
- if (drive->media == ide_disk)
- return ide_ata_error(drive, rq, stat, err);
- return ide_atapi_error(drive, rq, stat, err);
-}
-
-/**
- * ide_error - handle an error on the IDE
- * @drive: drive the error occurred on
- * @msg: message to report
- * @stat: status bits
- *
- * ide_error() takes action based on the error returned by the drive.
- * For normal I/O that may well include retries. We deal with
- * both new-style (taskfile) and old style command handling here.
- * In the case of taskfile command handling there is work left to
- * do
- */
-
-ide_startstop_t ide_error (ide_drive_t *drive, const char *msg, u8 stat)
-{
- struct request *rq;
- u8 err;
-
- err = ide_dump_status(drive, msg, stat);
-
- rq = drive->hwif->rq;
- if (rq == NULL)
- return ide_stopped;
-
- /* retry only "normal" I/O: */
- if (!blk_fs_request(rq)) {
- rq->errors = 1;
- ide_end_drive_cmd(drive, stat, err);
- return ide_stopped;
- }
-
- return __ide_error(drive, rq, stat, err);
-}
-EXPORT_SYMBOL_GPL(ide_error);
-
static void ide_tf_set_specify_cmd(ide_drive_t *drive, struct ide_taskfile *tf)
{
tf->nsect = drive->sect;
@@ -490,71 +363,16 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
return ide_stopped;
}
-int ide_devset_execute(ide_drive_t *drive, const struct ide_devset *setting,
- int arg)
-{
- struct request_queue *q = drive->queue;
- struct request *rq;
- int ret = 0;
-
- if (!(setting->flags & DS_SYNC))
- return setting->set(drive, arg);
-
- rq = blk_get_request(q, READ, __GFP_WAIT);
- rq->cmd_type = REQ_TYPE_SPECIAL;
- rq->cmd_len = 5;
- rq->cmd[0] = REQ_DEVSET_EXEC;
- *(int *)&rq->cmd[1] = arg;
- rq->special = setting->set;
-
- if (blk_execute_rq(q, NULL, rq, 0))
- ret = rq->errors;
- blk_put_request(rq);
-
- return ret;
-}
-EXPORT_SYMBOL_GPL(ide_devset_execute);
-
static ide_startstop_t ide_special_rq(ide_drive_t *drive, struct request *rq)
{
u8 cmd = rq->cmd[0];
- if (cmd == REQ_PARK_HEADS || cmd == REQ_UNPARK_HEADS) {
- ide_task_t task;
- struct ide_taskfile *tf = &task.tf;
-
- memset(&task, 0, sizeof(task));
- if (cmd == REQ_PARK_HEADS) {
- drive->sleep = *(unsigned long *)rq->special;
- drive->dev_flags |= IDE_DFLAG_SLEEPING;
- tf->command = ATA_CMD_IDLEIMMEDIATE;
- tf->feature = 0x44;
- tf->lbal = 0x4c;
- tf->lbam = 0x4e;
- tf->lbah = 0x55;
- task.tf_flags |= IDE_TFLAG_CUSTOM_HANDLER;
- } else /* cmd == REQ_UNPARK_HEADS */
- tf->command = ATA_CMD_CHK_POWER;
-
- task.tf_flags |= IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
- task.rq = rq;
- drive->hwif->data_phase = task.data_phase = TASKFILE_NO_DATA;
- return do_rw_taskfile(drive, &task);
- }
-
switch (cmd) {
+ case REQ_PARK_HEADS:
+ case REQ_UNPARK_HEADS:
+ return ide_do_park_unpark(drive, rq);
case REQ_DEVSET_EXEC:
- {
- int err, (*setfunc)(ide_drive_t *, int) = rq->special;
-
- err = setfunc(drive, *(int *)&rq->cmd[1]);
- if (err)
- rq->errors = err;
- else
- err = 1;
- ide_end_request(drive, err, 0);
- return ide_stopped;
- }
+ return ide_do_devset(drive, rq);
case REQ_DRIVE_RESET:
return ide_do_reset(drive);
default:
@@ -820,63 +638,6 @@ plug_device_2:
blk_plug_device(q);
}
-/*
- * un-busy the port etc, and clear any pending DMA status. we want to
- * retry the current request in pio mode instead of risking tossing it
- * all away
- */
-static ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error)
-{
- ide_hwif_t *hwif = drive->hwif;
- struct request *rq;
- ide_startstop_t ret = ide_stopped;
-
- /*
- * end current dma transaction
- */
-
- if (error < 0) {
- printk(KERN_WARNING "%s: DMA timeout error\n", drive->name);
- (void)hwif->dma_ops->dma_end(drive);
- ret = ide_error(drive, "dma timeout error",
- hwif->tp_ops->read_status(hwif));
- } else {
- printk(KERN_WARNING "%s: DMA timeout retry\n", drive->name);
- hwif->dma_ops->dma_timeout(drive);
- }
-
- /*
- * disable dma for now, but remember that we did so because of
- * a timeout -- we'll reenable after we finish this next request
- * (or rather the first chunk of it) in pio.
- */
- drive->dev_flags |= IDE_DFLAG_DMA_PIO_RETRY;
- drive->retry_pio++;
- ide_dma_off_quietly(drive);
-
- /*
- * un-busy drive etc and make sure request is sane
- */
-
- rq = hwif->rq;
- if (!rq)
- goto out;
-
- hwif->rq = NULL;
-
- rq->errors = 0;
-
- if (!rq->bio)
- goto out;
-
- rq->sector = rq->bio->bi_sector;
- rq->current_nr_sectors = bio_iovec(rq->bio)->bv_len >> 9;
- rq->hard_cur_sectors = rq->current_nr_sectors;
- rq->buffer = bio_data(rq->bio);
-out:
- return ret;
-}
-
static void ide_plug_device(ide_drive_t *drive)
{
struct request_queue *q = drive->queue;
@@ -888,6 +649,29 @@ static void ide_plug_device(ide_drive_t *drive)
spin_unlock_irqrestore(q->queue_lock, flags);
}
+static int drive_is_ready(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ u8 stat = 0;
+
+ if (drive->waiting_for_dma)
+ return hwif->dma_ops->dma_test_irq(drive);
+
+ if (hwif->io_ports.ctl_addr &&
+ (hwif->host_flags & IDE_HFLAG_BROKEN_ALTSTATUS) == 0)
+ stat = hwif->tp_ops->read_altstatus(hwif);
+ else
+ /* Note: this may clear a pending IRQ!! */
+ stat = hwif->tp_ops->read_status(hwif);
+
+ if (stat & ATA_BUSY)
+ /* drive busy: definitely not interrupting */
+ return 0;
+
+ /* drive ready: *might* be interrupting */
+ return 1;
+}
+
/**
* ide_timer_expiry - handle lack of an IDE interrupt
* @data: timer callback magic (hwif)
@@ -1164,54 +948,6 @@ out_early:
}
EXPORT_SYMBOL_GPL(ide_intr);
-/**
- * ide_do_drive_cmd - issue IDE special command
- * @drive: device to issue command
- * @rq: request to issue
- *
- * This function issues a special IDE device request
- * onto the request queue.
- *
- * the rq is queued at the head of the request queue, displacing
- * the currently-being-processed request and this function
- * returns immediately without waiting for the new rq to be
- * completed. This is VERY DANGEROUS, and is intended for
- * careful use by the ATAPI tape/cdrom driver code.
- */
-
-void ide_do_drive_cmd(ide_drive_t *drive, struct request *rq)
-{
- struct request_queue *q = drive->queue;
- unsigned long flags;
-
- drive->hwif->rq = NULL;
-
- spin_lock_irqsave(q->queue_lock, flags);
- __elv_add_request(q, rq, ELEVATOR_INSERT_FRONT, 0);
- spin_unlock_irqrestore(q->queue_lock, flags);
-}
-EXPORT_SYMBOL(ide_do_drive_cmd);
-
-void ide_pktcmd_tf_load(ide_drive_t *drive, u32 tf_flags, u16 bcount, u8 dma)
-{
- ide_hwif_t *hwif = drive->hwif;
- ide_task_t task;
-
- memset(&task, 0, sizeof(task));
- task.tf_flags = IDE_TFLAG_OUT_LBAH | IDE_TFLAG_OUT_LBAM |
- IDE_TFLAG_OUT_FEATURE | tf_flags;
- task.tf.feature = dma; /* Use PIO/DMA */
- task.tf.lbam = bcount & 0xff;
- task.tf.lbah = (bcount >> 8) & 0xff;
-
- ide_tf_dump(drive->name, &task.tf);
- hwif->tp_ops->set_irq(hwif, 1);
- SELECT_MASK(drive, 0);
- hwif->tp_ops->tf_load(drive, &task);
-}
-
-EXPORT_SYMBOL_GPL(ide_pktcmd_tf_load);
-
void ide_pad_transfer(ide_drive_t *drive, int write, int len)
{
ide_hwif_t *hwif = drive->hwif;
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index b1892bd..317c5da 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -27,35 +27,7 @@
#include <asm/uaccess.h>
#include <asm/io.h>
-/*
- * Conventional PIO operations for ATA devices
- */
-
-static u8 ide_inb (unsigned long port)
-{
- return (u8) inb(port);
-}
-
-static void ide_outb (u8 val, unsigned long port)
-{
- outb(val, port);
-}
-
-/*
- * MMIO operations, typically used for SATA controllers
- */
-
-static u8 ide_mm_inb (unsigned long port)
-{
- return (u8) readb((void __iomem *) port);
-}
-
-static void ide_mm_outb (u8 value, unsigned long port)
-{
- writeb(value, (void __iomem *) port);
-}
-
-void SELECT_DRIVE (ide_drive_t *drive)
+void SELECT_DRIVE(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
const struct ide_port_ops *port_ops = hwif->port_ops;
@@ -78,277 +50,6 @@ void SELECT_MASK(ide_drive_t *drive, int mask)
port_ops->maskproc(drive, mask);
}
-void ide_exec_command(ide_hwif_t *hwif, u8 cmd)
-{
- if (hwif->host_flags & IDE_HFLAG_MMIO)
- writeb(cmd, (void __iomem *)hwif->io_ports.command_addr);
- else
- outb(cmd, hwif->io_ports.command_addr);
-}
-EXPORT_SYMBOL_GPL(ide_exec_command);
-
-u8 ide_read_status(ide_hwif_t *hwif)
-{
- if (hwif->host_flags & IDE_HFLAG_MMIO)
- return readb((void __iomem *)hwif->io_ports.status_addr);
- else
- return inb(hwif->io_ports.status_addr);
-}
-EXPORT_SYMBOL_GPL(ide_read_status);
-
-u8 ide_read_altstatus(ide_hwif_t *hwif)
-{
- if (hwif->host_flags & IDE_HFLAG_MMIO)
- return readb((void __iomem *)hwif->io_ports.ctl_addr);
- else
- return inb(hwif->io_ports.ctl_addr);
-}
-EXPORT_SYMBOL_GPL(ide_read_altstatus);
-
-void ide_set_irq(ide_hwif_t *hwif, int on)
-{
- u8 ctl = ATA_DEVCTL_OBS;
-
- if (on == 4) { /* hack for SRST */
- ctl |= 4;
- on &= ~4;
- }
-
- ctl |= on ? 0 : 2;
-
- if (hwif->host_flags & IDE_HFLAG_MMIO)
- writeb(ctl, (void __iomem *)hwif->io_ports.ctl_addr);
- else
- outb(ctl, hwif->io_ports.ctl_addr);
-}
-EXPORT_SYMBOL_GPL(ide_set_irq);
-
-void ide_tf_load(ide_drive_t *drive, ide_task_t *task)
-{
- ide_hwif_t *hwif = drive->hwif;
- struct ide_io_ports *io_ports = &hwif->io_ports;
- struct ide_taskfile *tf = &task->tf;
- void (*tf_outb)(u8 addr, unsigned long port);
- u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
- u8 HIHI = (task->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
-
- if (mmio)
- tf_outb = ide_mm_outb;
- else
- tf_outb = ide_outb;
-
- if (task->tf_flags & IDE_TFLAG_FLAGGED)
- HIHI = 0xFF;
-
- if (task->tf_flags & IDE_TFLAG_OUT_DATA) {
- u16 data = (tf->hob_data << 8) | tf->data;
-
- if (mmio)
- writew(data, (void __iomem *)io_ports->data_addr);
- else
- outw(data, io_ports->data_addr);
- }
-
- if (task->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
- tf_outb(tf->hob_feature, io_ports->feature_addr);
- if (task->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
- tf_outb(tf->hob_nsect, io_ports->nsect_addr);
- if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
- tf_outb(tf->hob_lbal, io_ports->lbal_addr);
- if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
- tf_outb(tf->hob_lbam, io_ports->lbam_addr);
- if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
- tf_outb(tf->hob_lbah, io_ports->lbah_addr);
-
- if (task->tf_flags & IDE_TFLAG_OUT_FEATURE)
- tf_outb(tf->feature, io_ports->feature_addr);
- if (task->tf_flags & IDE_TFLAG_OUT_NSECT)
- tf_outb(tf->nsect, io_ports->nsect_addr);
- if (task->tf_flags & IDE_TFLAG_OUT_LBAL)
- tf_outb(tf->lbal, io_ports->lbal_addr);
- if (task->tf_flags & IDE_TFLAG_OUT_LBAM)
- tf_outb(tf->lbam, io_ports->lbam_addr);
- if (task->tf_flags & IDE_TFLAG_OUT_LBAH)
- tf_outb(tf->lbah, io_ports->lbah_addr);
-
- if (task->tf_flags & IDE_TFLAG_OUT_DEVICE)
- tf_outb((tf->device & HIHI) | drive->select,
- io_ports->device_addr);
-}
-EXPORT_SYMBOL_GPL(ide_tf_load);
-
-void ide_tf_read(ide_drive_t *drive, ide_task_t *task)
-{
- ide_hwif_t *hwif = drive->hwif;
- struct ide_io_ports *io_ports = &hwif->io_ports;
- struct ide_taskfile *tf = &task->tf;
- void (*tf_outb)(u8 addr, unsigned long port);
- u8 (*tf_inb)(unsigned long port);
- u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
-
- if (mmio) {
- tf_outb = ide_mm_outb;
- tf_inb = ide_mm_inb;
- } else {
- tf_outb = ide_outb;
- tf_inb = ide_inb;
- }
-
- if (task->tf_flags & IDE_TFLAG_IN_DATA) {
- u16 data;
-
- if (mmio)
- data = readw((void __iomem *)io_ports->data_addr);
- else
- data = inw(io_ports->data_addr);
-
- tf->data = data & 0xff;
- tf->hob_data = (data >> 8) & 0xff;
- }
-
- /* be sure we're looking at the low order bits */
- tf_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
-
- if (task->tf_flags & IDE_TFLAG_IN_FEATURE)
- tf->feature = tf_inb(io_ports->feature_addr);
- if (task->tf_flags & IDE_TFLAG_IN_NSECT)
- tf->nsect = tf_inb(io_ports->nsect_addr);
- if (task->tf_flags & IDE_TFLAG_IN_LBAL)
- tf->lbal = tf_inb(io_ports->lbal_addr);
- if (task->tf_flags & IDE_TFLAG_IN_LBAM)
- tf->lbam = tf_inb(io_ports->lbam_addr);
- if (task->tf_flags & IDE_TFLAG_IN_LBAH)
- tf->lbah = tf_inb(io_ports->lbah_addr);
- if (task->tf_flags & IDE_TFLAG_IN_DEVICE)
- tf->device = tf_inb(io_ports->device_addr);
-
- if (task->tf_flags & IDE_TFLAG_LBA48) {
- tf_outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
-
- if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
- tf->hob_feature = tf_inb(io_ports->feature_addr);
- if (task->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
- tf->hob_nsect = tf_inb(io_ports->nsect_addr);
- if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
- tf->hob_lbal = tf_inb(io_ports->lbal_addr);
- if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
- tf->hob_lbam = tf_inb(io_ports->lbam_addr);
- if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
- tf->hob_lbah = tf_inb(io_ports->lbah_addr);
- }
-}
-EXPORT_SYMBOL_GPL(ide_tf_read);
-
-/*
- * Some localbus EIDE interfaces require a special access sequence
- * when using 32-bit I/O instructions to transfer data. We call this
- * the "vlb_sync" sequence, which consists of three successive reads
- * of the sector count register location, with interrupts disabled
- * to ensure that the reads all happen together.
- */
-static void ata_vlb_sync(unsigned long port)
-{
- (void)inb(port);
- (void)inb(port);
- (void)inb(port);
-}
-
-/*
- * This is used for most PIO data transfers *from* the IDE interface
- *
- * These routines will round up any request for an odd number of bytes,
- * so if an odd len is specified, be sure that there's at least one
- * extra byte allocated for the buffer.
- */
-void ide_input_data(ide_drive_t *drive, struct request *rq, void *buf,
- unsigned int len)
-{
- ide_hwif_t *hwif = drive->hwif;
- struct ide_io_ports *io_ports = &hwif->io_ports;
- unsigned long data_addr = io_ports->data_addr;
- u8 io_32bit = drive->io_32bit;
- u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
-
- len++;
-
- if (io_32bit) {
- unsigned long uninitialized_var(flags);
-
- if ((io_32bit & 2) && !mmio) {
- local_irq_save(flags);
- ata_vlb_sync(io_ports->nsect_addr);
- }
-
- if (mmio)
- __ide_mm_insl((void __iomem *)data_addr, buf, len / 4);
- else
- insl(data_addr, buf, len / 4);
-
- if ((io_32bit & 2) && !mmio)
- local_irq_restore(flags);
-
- if ((len & 3) >= 2) {
- if (mmio)
- __ide_mm_insw((void __iomem *)data_addr,
- (u8 *)buf + (len & ~3), 1);
- else
- insw(data_addr, (u8 *)buf + (len & ~3), 1);
- }
- } else {
- if (mmio)
- __ide_mm_insw((void __iomem *)data_addr, buf, len / 2);
- else
- insw(data_addr, buf, len / 2);
- }
-}
-EXPORT_SYMBOL_GPL(ide_input_data);
-
-/*
- * This is used for most PIO data transfers *to* the IDE interface
- */
-void ide_output_data(ide_drive_t *drive, struct request *rq, void *buf,
- unsigned int len)
-{
- ide_hwif_t *hwif = drive->hwif;
- struct ide_io_ports *io_ports = &hwif->io_ports;
- unsigned long data_addr = io_ports->data_addr;
- u8 io_32bit = drive->io_32bit;
- u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
-
- len++;
-
- if (io_32bit) {
- unsigned long uninitialized_var(flags);
-
- if ((io_32bit & 2) && !mmio) {
- local_irq_save(flags);
- ata_vlb_sync(io_ports->nsect_addr);
- }
-
- if (mmio)
- __ide_mm_outsl((void __iomem *)data_addr, buf, len / 4);
- else
- outsl(data_addr, buf, len / 4);
-
- if ((io_32bit & 2) && !mmio)
- local_irq_restore(flags);
-
- if ((len & 3) >= 2) {
- if (mmio)
- __ide_mm_outsw((void __iomem *)data_addr,
- (u8 *)buf + (len & ~3), 1);
- else
- outsw(data_addr, (u8 *)buf + (len & ~3), 1);
- }
- } else {
- if (mmio)
- __ide_mm_outsw((void __iomem *)data_addr, buf, len / 2);
- else
- outsw(data_addr, buf, len / 2);
- }
-}
-EXPORT_SYMBOL_GPL(ide_output_data);
-
u8 ide_read_error(ide_drive_t *drive)
{
ide_task_t task;
@@ -362,35 +63,6 @@ u8 ide_read_error(ide_drive_t *drive)
}
EXPORT_SYMBOL_GPL(ide_read_error);
-void ide_read_bcount_and_ireason(ide_drive_t *drive, u16 *bcount, u8 *ireason)
-{
- ide_task_t task;
-
- memset(&task, 0, sizeof(task));
- task.tf_flags = IDE_TFLAG_IN_LBAH | IDE_TFLAG_IN_LBAM |
- IDE_TFLAG_IN_NSECT;
-
- drive->hwif->tp_ops->tf_read(drive, &task);
-
- *bcount = (task.tf.lbah << 8) | task.tf.lbam;
- *ireason = task.tf.nsect & 3;
-}
-EXPORT_SYMBOL_GPL(ide_read_bcount_and_ireason);
-
-const struct ide_tp_ops default_tp_ops = {
- .exec_command = ide_exec_command,
- .read_status = ide_read_status,
- .read_altstatus = ide_read_altstatus,
-
- .set_irq = ide_set_irq,
-
- .tf_load = ide_tf_load,
- .tf_read = ide_tf_read,
-
- .input_data = ide_input_data,
- .output_data = ide_output_data,
-};
-
void ide_fix_driveid(u16 *id)
{
#ifndef __LITTLE_ENDIAN
@@ -412,7 +84,7 @@ void ide_fix_driveid(u16 *id)
* returned by the ATA_CMD_ID_ATA[PI] commands.
*/
-void ide_fixstring (u8 *s, const int bytecount, const int byteswap)
+void ide_fixstring(u8 *s, const int bytecount, const int byteswap)
{
u8 *p, *end = &s[bytecount & ~1]; /* bytecount must be even */
@@ -435,44 +107,9 @@ void ide_fixstring (u8 *s, const int bytecount, const int byteswap)
while (p != end)
*p++ = '\0';
}
-
EXPORT_SYMBOL(ide_fixstring);
/*
- * Needed for PCI irq sharing
- */
-int drive_is_ready (ide_drive_t *drive)
-{
- ide_hwif_t *hwif = drive->hwif;
- u8 stat = 0;
-
- if (drive->waiting_for_dma)
- return hwif->dma_ops->dma_test_irq(drive);
-
- /*
- * We do a passive status test under shared PCI interrupts on
- * cards that truly share the ATA side interrupt, but may also share
- * an interrupt with another pci card/device. We make no assumptions
- * about possible isa-pnp and pci-pnp issues yet.
- */
- if (hwif->io_ports.ctl_addr &&
- (hwif->host_flags & IDE_HFLAG_BROKEN_ALTSTATUS) == 0)
- stat = hwif->tp_ops->read_altstatus(hwif);
- else
- /* Note: this may clear a pending IRQ!! */
- stat = hwif->tp_ops->read_status(hwif);
-
- if (stat & ATA_BUSY)
- /* drive busy: definitely not interrupting */
- return 0;
-
- /* drive ready: *might* be interrupting */
- return 1;
-}
-
-EXPORT_SYMBOL(drive_is_ready);
-
-/*
* This routine busy-waits for the drive status to be not "busy".
* It then checks the status for all of the "good" bits and none
* of the "bad" bits, and if all is okay it returns 0. All other
@@ -483,7 +120,8 @@ EXPORT_SYMBOL(drive_is_ready);
* setting a timer to wake up at half second intervals thereafter,
* until timeout is achieved, before timing out.
*/
-static int __ide_wait_stat(ide_drive_t *drive, u8 good, u8 bad, unsigned long timeout, u8 *rstat)
+static int __ide_wait_stat(ide_drive_t *drive, u8 good, u8 bad,
+ unsigned long timeout, u8 *rstat)
{
ide_hwif_t *hwif = drive->hwif;
const struct ide_tp_ops *tp_ops = hwif->tp_ops;
@@ -541,7 +179,8 @@ static int __ide_wait_stat(ide_drive_t *drive, u8 good, u8 bad, unsigned long ti
* The caller should return the updated value of "startstop" in this case,
* "startstop" is unchanged when the function returns 0.
*/
-int ide_wait_stat(ide_startstop_t *startstop, ide_drive_t *drive, u8 good, u8 bad, unsigned long timeout)
+int ide_wait_stat(ide_startstop_t *startstop, ide_drive_t *drive, u8 good,
+ u8 bad, unsigned long timeout)
{
int err;
u8 stat;
@@ -561,7 +200,6 @@ int ide_wait_stat(ide_startstop_t *startstop, ide_drive_t *drive, u8 good, u8 ba
return err;
}
-
EXPORT_SYMBOL(ide_wait_stat);
/**
@@ -582,7 +220,6 @@ int ide_in_drive_list(u16 *id, const struct drive_list_entry *table)
return 1;
return 0;
}
-
EXPORT_SYMBOL_GPL(ide_in_drive_list);
/*
@@ -607,7 +244,7 @@ static const struct drive_list_entry ivb_list[] = {
* All hosts that use the 80c ribbon must use!
* The name is derived from upper byte of word 93 and the 80c ribbon.
*/
-u8 eighty_ninty_three (ide_drive_t *drive)
+u8 eighty_ninty_three(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
u16 *id = drive->id;
@@ -652,47 +289,19 @@ no_80w:
int ide_driveid_update(ide_drive_t *drive)
{
- ide_hwif_t *hwif = drive->hwif;
- const struct ide_tp_ops *tp_ops = hwif->tp_ops;
u16 *id;
- unsigned long flags;
- u8 stat;
-
- /*
- * Re-read drive->id for possible DMA mode
- * change (copied from ide-probe.c)
- */
-
- SELECT_MASK(drive, 1);
- tp_ops->set_irq(hwif, 0);
- msleep(50);
- tp_ops->exec_command(hwif, ATA_CMD_ID_ATA);
+ int rc;
- if (ide_busy_sleep(hwif, WAIT_WORSTCASE, 1)) {
- SELECT_MASK(drive, 0);
+ id = kmalloc(SECTOR_SIZE, GFP_ATOMIC);
+ if (id == NULL)
return 0;
- }
-
- msleep(50); /* wait for IRQ and ATA_DRQ */
- stat = tp_ops->read_status(hwif);
- if (!OK_STAT(stat, ATA_DRQ, BAD_R_STAT)) {
- SELECT_MASK(drive, 0);
- printk("%s: CHECK for good STATUS\n", drive->name);
- return 0;
- }
- local_irq_save(flags);
+ SELECT_MASK(drive, 1);
+ rc = ide_dev_read_id(drive, ATA_CMD_ID_ATA, id);
SELECT_MASK(drive, 0);
- id = kmalloc(SECTOR_SIZE, GFP_ATOMIC);
- if (!id) {
- local_irq_restore(flags);
- return 0;
- }
- tp_ops->input_data(drive, NULL, id, SECTOR_SIZE);
- (void)tp_ops->read_status(hwif); /* clear drive IRQ */
- local_irq_enable();
- local_irq_restore(flags);
- ide_fix_driveid(id);
+
+ if (rc)
+ goto out_err;
drive->id[ATA_ID_UDMA_MODES] = id[ATA_ID_UDMA_MODES];
drive->id[ATA_ID_MWDMA_MODES] = id[ATA_ID_MWDMA_MODES];
@@ -705,6 +314,12 @@ int ide_driveid_update(ide_drive_t *drive)
ide_dma_off(drive);
return 1;
+out_err:
+ SELECT_MASK(drive, 0);
+ if (rc == 2)
+ printk(KERN_ERR "%s: %s: bad status\n", drive->name, __func__);
+ kfree(id);
+ return 0;
}
int ide_config_drive_speed(ide_drive_t *drive, u8 speed)
@@ -731,18 +346,15 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed)
* but for some reason these don't work at
* this point (lost interrupt).
*/
- /*
- * Select the drive, and issue the SETFEATURES command
- */
- disable_irq_nosync(hwif->irq);
-
+
/*
* FIXME: we race against the running IRQ here if
* this is called from non IRQ context. If we use
* disable_irq() we hang on the error path. Work
* is needed.
*/
-
+ disable_irq_nosync(hwif->irq);
+
udelay(1);
SELECT_DRIVE(drive);
SELECT_MASK(drive, 1);
@@ -812,8 +424,8 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed)
*
* See also ide_execute_command
*/
-static void __ide_set_handler (ide_drive_t *drive, ide_handler_t *handler,
- unsigned int timeout, ide_expiry_t *expiry)
+void __ide_set_handler(ide_drive_t *drive, ide_handler_t *handler,
+ unsigned int timeout, ide_expiry_t *expiry)
{
ide_hwif_t *hwif = drive->hwif;
@@ -835,9 +447,8 @@ void ide_set_handler (ide_drive_t *drive, ide_handler_t *handler,
__ide_set_handler(drive, handler, timeout, expiry);
spin_unlock_irqrestore(&hwif->lock, flags);
}
-
EXPORT_SYMBOL(ide_set_handler);
-
+
/**
* ide_execute_command - execute an IDE command
* @drive: IDE drive to issue the command against
@@ -847,7 +458,7 @@ EXPORT_SYMBOL(ide_set_handler);
* @expiry: handler to run on timeout
*
* Helper function to issue an IDE command. This handles the
- * atomicity requirements, command timing and ensures that the
+ * atomicity requirements, command timing and ensures that the
* handler and IRQ setup do not race. All IDE command kick off
* should go via this function or do equivalent locking.
*/
@@ -884,301 +495,6 @@ void ide_execute_pkt_cmd(ide_drive_t *drive)
}
EXPORT_SYMBOL_GPL(ide_execute_pkt_cmd);
-static inline void ide_complete_drive_reset(ide_drive_t *drive, int err)
-{
- struct request *rq = drive->hwif->rq;
-
- if (rq && blk_special_request(rq) && rq->cmd[0] == REQ_DRIVE_RESET)
- ide_end_request(drive, err ? err : 1, 0);
-}
-
-/* needed below */
-static ide_startstop_t do_reset1 (ide_drive_t *, int);
-
-/*
- * atapi_reset_pollfunc() gets invoked to poll the interface for completion every 50ms
- * during an atapi drive reset operation. If the drive has not yet responded,
- * and we have not yet hit our maximum waiting time, then the timer is restarted
- * for another 50ms.
- */
-static ide_startstop_t atapi_reset_pollfunc (ide_drive_t *drive)
-{
- ide_hwif_t *hwif = drive->hwif;
- u8 stat;
-
- SELECT_DRIVE(drive);
- udelay (10);
- stat = hwif->tp_ops->read_status(hwif);
-
- if (OK_STAT(stat, 0, ATA_BUSY))
- printk("%s: ATAPI reset complete\n", drive->name);
- else {
- if (time_before(jiffies, hwif->poll_timeout)) {
- ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20, NULL);
- /* continue polling */
- return ide_started;
- }
- /* end of polling */
- hwif->polling = 0;
- printk("%s: ATAPI reset timed-out, status=0x%02x\n",
- drive->name, stat);
- /* do it the old fashioned way */
- return do_reset1(drive, 1);
- }
- /* done polling */
- hwif->polling = 0;
- ide_complete_drive_reset(drive, 0);
- return ide_stopped;
-}
-
-static void ide_reset_report_error(ide_hwif_t *hwif, u8 err)
-{
- static const char *err_master_vals[] =
- { NULL, "passed", "formatter device error",
- "sector buffer error", "ECC circuitry error",
- "controlling MPU error" };
-
- u8 err_master = err & 0x7f;
-
- printk(KERN_ERR "%s: reset: master: ", hwif->name);
- if (err_master && err_master < 6)
- printk(KERN_CONT "%s", err_master_vals[err_master]);
- else
- printk(KERN_CONT "error (0x%02x?)", err);
- if (err & 0x80)
- printk(KERN_CONT "; slave: failed");
- printk(KERN_CONT "\n");
-}
-
-/*
- * reset_pollfunc() gets invoked to poll the interface for completion every 50ms
- * during an ide reset operation. If the drives have not yet responded,
- * and we have not yet hit our maximum waiting time, then the timer is restarted
- * for another 50ms.
- */
-static ide_startstop_t reset_pollfunc (ide_drive_t *drive)
-{
- ide_hwif_t *hwif = drive->hwif;
- const struct ide_port_ops *port_ops = hwif->port_ops;
- u8 tmp;
- int err = 0;
-
- if (port_ops && port_ops->reset_poll) {
- err = port_ops->reset_poll(drive);
- if (err) {
- printk(KERN_ERR "%s: host reset_poll failure for %s.\n",
- hwif->name, drive->name);
- goto out;
- }
- }
-
- tmp = hwif->tp_ops->read_status(hwif);
-
- if (!OK_STAT(tmp, 0, ATA_BUSY)) {
- if (time_before(jiffies, hwif->poll_timeout)) {
- ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
- /* continue polling */
- return ide_started;
- }
- printk("%s: reset timed-out, status=0x%02x\n", hwif->name, tmp);
- drive->failures++;
- err = -EIO;
- } else {
- tmp = ide_read_error(drive);
-
- if (tmp == 1) {
- printk(KERN_INFO "%s: reset: success\n", hwif->name);
- drive->failures = 0;
- } else {
- ide_reset_report_error(hwif, tmp);
- drive->failures++;
- err = -EIO;
- }
- }
-out:
- hwif->polling = 0; /* done polling */
- ide_complete_drive_reset(drive, err);
- return ide_stopped;
-}
-
-static void ide_disk_pre_reset(ide_drive_t *drive)
-{
- int legacy = (drive->id[ATA_ID_CFS_ENABLE_2] & 0x0400) ? 0 : 1;
-
- drive->special.all = 0;
- drive->special.b.set_geometry = legacy;
- drive->special.b.recalibrate = legacy;
-
- drive->mult_count = 0;
- drive->dev_flags &= ~IDE_DFLAG_PARKED;
-
- if ((drive->dev_flags & IDE_DFLAG_KEEP_SETTINGS) == 0 &&
- (drive->dev_flags & IDE_DFLAG_USING_DMA) == 0)
- drive->mult_req = 0;
-
- if (drive->mult_req != drive->mult_count)
- drive->special.b.set_multmode = 1;
-}
-
-static void pre_reset(ide_drive_t *drive)
-{
- const struct ide_port_ops *port_ops = drive->hwif->port_ops;
-
- if (drive->media == ide_disk)
- ide_disk_pre_reset(drive);
- else
- drive->dev_flags |= IDE_DFLAG_POST_RESET;
-
- if (drive->dev_flags & IDE_DFLAG_USING_DMA) {
- if (drive->crc_count)
- ide_check_dma_crc(drive);
- else
- ide_dma_off(drive);
- }
-
- if ((drive->dev_flags & IDE_DFLAG_KEEP_SETTINGS) == 0) {
- if ((drive->dev_flags & IDE_DFLAG_USING_DMA) == 0) {
- drive->dev_flags &= ~IDE_DFLAG_UNMASK;
- drive->io_32bit = 0;
- }
- return;
- }
-
- if (port_ops && port_ops->pre_reset)
- port_ops->pre_reset(drive);
-
- if (drive->current_speed != 0xff)
- drive->desired_speed = drive->current_speed;
- drive->current_speed = 0xff;
-}
-
-/*
- * do_reset1() attempts to recover a confused drive by resetting it.
- * Unfortunately, resetting a disk drive actually resets all devices on
- * the same interface, so it can really be thought of as resetting the
- * interface rather than resetting the drive.
- *
- * ATAPI devices have their own reset mechanism which allows them to be
- * individually reset without clobbering other devices on the same interface.
- *
- * Unfortunately, the IDE interface does not generate an interrupt to let
- * us know when the reset operation has finished, so we must poll for this.
- * Equally poor, though, is the fact that this may a very long time to complete,
- * (up to 30 seconds worstcase). So, instead of busy-waiting here for it,
- * we set a timer to poll at 50ms intervals.
- */
-static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
-{
- ide_hwif_t *hwif = drive->hwif;
- struct ide_io_ports *io_ports = &hwif->io_ports;
- const struct ide_tp_ops *tp_ops = hwif->tp_ops;
- const struct ide_port_ops *port_ops;
- ide_drive_t *tdrive;
- unsigned long flags, timeout;
- int i;
- DEFINE_WAIT(wait);
-
- spin_lock_irqsave(&hwif->lock, flags);
-
- /* We must not reset with running handlers */
- BUG_ON(hwif->handler != NULL);
-
- /* For an ATAPI device, first try an ATAPI SRST. */
- if (drive->media != ide_disk && !do_not_try_atapi) {
- pre_reset(drive);
- SELECT_DRIVE(drive);
- udelay (20);
- tp_ops->exec_command(hwif, ATA_CMD_DEV_RESET);
- ndelay(400);
- hwif->poll_timeout = jiffies + WAIT_WORSTCASE;
- hwif->polling = 1;
- __ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20, NULL);
- spin_unlock_irqrestore(&hwif->lock, flags);
- return ide_started;
- }
-
- /* We must not disturb devices in the IDE_DFLAG_PARKED state. */
- do {
- unsigned long now;
-
- prepare_to_wait(&ide_park_wq, &wait, TASK_UNINTERRUPTIBLE);
- timeout = jiffies;
- ide_port_for_each_dev(i, tdrive, hwif) {
- if (tdrive->dev_flags & IDE_DFLAG_PRESENT &&
- tdrive->dev_flags & IDE_DFLAG_PARKED &&
- time_after(tdrive->sleep, timeout))
- timeout = tdrive->sleep;
- }
-
- now = jiffies;
- if (time_before_eq(timeout, now))
- break;
-
- spin_unlock_irqrestore(&hwif->lock, flags);
- timeout = schedule_timeout_uninterruptible(timeout - now);
- spin_lock_irqsave(&hwif->lock, flags);
- } while (timeout);
- finish_wait(&ide_park_wq, &wait);
-
- /*
- * First, reset any device state data we were maintaining
- * for any of the drives on this interface.
- */
- ide_port_for_each_dev(i, tdrive, hwif)
- pre_reset(tdrive);
-
- if (io_ports->ctl_addr == 0) {
- spin_unlock_irqrestore(&hwif->lock, flags);
- ide_complete_drive_reset(drive, -ENXIO);
- return ide_stopped;
- }
-
- /*
- * Note that we also set nIEN while resetting the device,
- * to mask unwanted interrupts from the interface during the reset.
- * However, due to the design of PC hardware, this will cause an
- * immediate interrupt due to the edge transition it produces.
- * This single interrupt gives us a "fast poll" for drives that
- * recover from reset very quickly, saving us the first 50ms wait time.
- *
- * TODO: add ->softreset method and stop abusing ->set_irq
- */
- /* set SRST and nIEN */
- tp_ops->set_irq(hwif, 4);
- /* more than enough time */
- udelay(10);
- /* clear SRST, leave nIEN (unless device is on the quirk list) */
- tp_ops->set_irq(hwif, drive->quirk_list == 2);
- /* more than enough time */
- udelay(10);
- hwif->poll_timeout = jiffies + WAIT_WORSTCASE;
- hwif->polling = 1;
- __ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
-
- /*
- * Some weird controller like resetting themselves to a strange
- * state when the disks are reset this way. At least, the Winbond
- * 553 documentation says that
- */
- port_ops = hwif->port_ops;
- if (port_ops && port_ops->resetproc)
- port_ops->resetproc(drive);
-
- spin_unlock_irqrestore(&hwif->lock, flags);
- return ide_started;
-}
-
-/*
- * ide_do_reset() is the entry point to the drive/interface reset code.
- */
-
-ide_startstop_t ide_do_reset (ide_drive_t *drive)
-{
- return do_reset1(drive, 0);
-}
-
-EXPORT_SYMBOL(ide_do_reset);
-
/*
* ide_wait_not_busy() waits for the currently selected device on the hwif
* to report a non-busy status, see comments in ide_probe_port().
@@ -1187,7 +503,7 @@ int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout)
{
u8 stat = 0;
- while(timeout--) {
+ while (timeout--) {
/*
* Turn this into a schedule() sleep once I'm sure
* about locking issues (2.5 work ?).
diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c
index 09526a0..f6c683d 100644
--- a/drivers/ide/ide-lib.c
+++ b/drivers/ide/ide-lib.c
@@ -5,163 +5,6 @@
#include <linux/ide.h>
#include <linux/bitops.h>
-static const char *udma_str[] =
- { "UDMA/16", "UDMA/25", "UDMA/33", "UDMA/44",
- "UDMA/66", "UDMA/100", "UDMA/133", "UDMA7" };
-static const char *mwdma_str[] =
- { "MWDMA0", "MWDMA1", "MWDMA2" };
-static const char *swdma_str[] =
- { "SWDMA0", "SWDMA1", "SWDMA2" };
-static const char *pio_str[] =
- { "PIO0", "PIO1", "PIO2", "PIO3", "PIO4", "PIO5" };
-
-/**
- * ide_xfer_verbose - return IDE mode names
- * @mode: transfer mode
- *
- * Returns a constant string giving the name of the mode
- * requested.
- */
-
-const char *ide_xfer_verbose(u8 mode)
-{
- const char *s;
- u8 i = mode & 0xf;
-
- if (mode >= XFER_UDMA_0 && mode <= XFER_UDMA_7)
- s = udma_str[i];
- else if (mode >= XFER_MW_DMA_0 && mode <= XFER_MW_DMA_2)
- s = mwdma_str[i];
- else if (mode >= XFER_SW_DMA_0 && mode <= XFER_SW_DMA_2)
- s = swdma_str[i];
- else if (mode >= XFER_PIO_0 && mode <= XFER_PIO_5)
- s = pio_str[i & 0x7];
- else if (mode == XFER_PIO_SLOW)
- s = "PIO SLOW";
- else
- s = "XFER ERROR";
-
- return s;
-}
-EXPORT_SYMBOL(ide_xfer_verbose);
-
-/**
- * ide_rate_filter - filter transfer mode
- * @drive: IDE device
- * @speed: desired speed
- *
- * Given the available transfer modes this function returns
- * the best available speed at or below the speed requested.
- *
- * TODO: check device PIO capabilities
- */
-
-static u8 ide_rate_filter(ide_drive_t *drive, u8 speed)
-{
- ide_hwif_t *hwif = drive->hwif;
- u8 mode = ide_find_dma_mode(drive, speed);
-
- if (mode == 0) {
- if (hwif->pio_mask)
- mode = fls(hwif->pio_mask) - 1 + XFER_PIO_0;
- else
- mode = XFER_PIO_4;
- }
-
-/* printk("%s: mode 0x%02x, speed 0x%02x\n", __func__, mode, speed); */
-
- return min(speed, mode);
-}
-
-/**
- * ide_get_best_pio_mode - get PIO mode from drive
- * @drive: drive to consider
- * @mode_wanted: preferred mode
- * @max_mode: highest allowed mode
- *
- * This routine returns the recommended PIO settings for a given drive,
- * based on the drive->id information and the ide_pio_blacklist[].
- *
- * Drive PIO mode is auto-selected if 255 is passed as mode_wanted.
- * This is used by most chipset support modules when "auto-tuning".
- */
-
-u8 ide_get_best_pio_mode(ide_drive_t *drive, u8 mode_wanted, u8 max_mode)
-{
- u16 *id = drive->id;
- int pio_mode = -1, overridden = 0;
-
- if (mode_wanted != 255)
- return min_t(u8, mode_wanted, max_mode);
-
- if ((drive->hwif->host_flags & IDE_HFLAG_PIO_NO_BLACKLIST) == 0)
- pio_mode = ide_scan_pio_blacklist((char *)&id[ATA_ID_PROD]);
-
- if (pio_mode != -1) {
- printk(KERN_INFO "%s: is on PIO blacklist\n", drive->name);
- } else {
- pio_mode = id[ATA_ID_OLD_PIO_MODES] >> 8;
- if (pio_mode > 2) { /* 2 is maximum allowed tPIO value */
- pio_mode = 2;
- overridden = 1;
- }
-
- if (id[ATA_ID_FIELD_VALID] & 2) { /* ATA2? */
- if (ata_id_has_iordy(id)) {
- if (id[ATA_ID_PIO_MODES] & 7) {
- overridden = 0;
- if (id[ATA_ID_PIO_MODES] & 4)
- pio_mode = 5;
- else if (id[ATA_ID_PIO_MODES] & 2)
- pio_mode = 4;
- else
- pio_mode = 3;
- }
- }
- }
-
- if (overridden)
- printk(KERN_INFO "%s: tPIO > 2, assuming tPIO = 2\n",
- drive->name);
- }
-
- if (pio_mode > max_mode)
- pio_mode = max_mode;
-
- return pio_mode;
-}
-EXPORT_SYMBOL_GPL(ide_get_best_pio_mode);
-
-/* req_pio == "255" for auto-tune */
-void ide_set_pio(ide_drive_t *drive, u8 req_pio)
-{
- ide_hwif_t *hwif = drive->hwif;
- const struct ide_port_ops *port_ops = hwif->port_ops;
- u8 host_pio, pio;
-
- if (port_ops == NULL || port_ops->set_pio_mode == NULL ||
- (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
- return;
-
- BUG_ON(hwif->pio_mask == 0x00);
-
- host_pio = fls(hwif->pio_mask) - 1;
-
- pio = ide_get_best_pio_mode(drive, req_pio, host_pio);
-
- /*
- * TODO:
- * - report device max PIO mode
- * - check req_pio != 255 against device max PIO mode
- */
- printk(KERN_DEBUG "%s: host max PIO%d wanted PIO%d%s selected PIO%d\n",
- drive->name, host_pio, req_pio,
- req_pio == 255 ? "(auto-tune)" : "", pio);
-
- (void)ide_set_pio_mode(drive, XFER_PIO_0 + pio);
-}
-EXPORT_SYMBOL_GPL(ide_set_pio);
-
/**
* ide_toggle_bounce - handle bounce buffering
* @drive: drive to update
@@ -188,89 +31,6 @@ void ide_toggle_bounce(ide_drive_t *drive, int on)
blk_queue_bounce_limit(drive->queue, addr);
}
-int ide_set_pio_mode(ide_drive_t *drive, const u8 mode)
-{
- ide_hwif_t *hwif = drive->hwif;
- const struct ide_port_ops *port_ops = hwif->port_ops;
-
- if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)
- return 0;
-
- if (port_ops == NULL || port_ops->set_pio_mode == NULL)
- return -1;
-
- /*
- * TODO: temporary hack for some legacy host drivers that didn't
- * set transfer mode on the device in ->set_pio_mode method...
- */
- if (port_ops->set_dma_mode == NULL) {
- port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
- return 0;
- }
-
- if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) {
- if (ide_config_drive_speed(drive, mode))
- return -1;
- port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
- return 0;
- } else {
- port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
- return ide_config_drive_speed(drive, mode);
- }
-}
-
-int ide_set_dma_mode(ide_drive_t *drive, const u8 mode)
-{
- ide_hwif_t *hwif = drive->hwif;
- const struct ide_port_ops *port_ops = hwif->port_ops;
-
- if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)
- return 0;
-
- if (port_ops == NULL || port_ops->set_dma_mode == NULL)
- return -1;
-
- if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) {
- if (ide_config_drive_speed(drive, mode))
- return -1;
- port_ops->set_dma_mode(drive, mode);
- return 0;
- } else {
- port_ops->set_dma_mode(drive, mode);
- return ide_config_drive_speed(drive, mode);
- }
-}
-EXPORT_SYMBOL_GPL(ide_set_dma_mode);
-
-/**
- * ide_set_xfer_rate - set transfer rate
- * @drive: drive to set
- * @rate: speed to attempt to set
- *
- * General helper for setting the speed of an IDE device. This
- * function knows about user enforced limits from the configuration
- * which ->set_pio_mode/->set_dma_mode does not.
- */
-
-int ide_set_xfer_rate(ide_drive_t *drive, u8 rate)
-{
- ide_hwif_t *hwif = drive->hwif;
- const struct ide_port_ops *port_ops = hwif->port_ops;
-
- if (port_ops == NULL || port_ops->set_dma_mode == NULL ||
- (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
- return -1;
-
- rate = ide_rate_filter(drive, rate);
-
- BUG_ON(rate < XFER_PIO_0);
-
- if (rate >= XFER_PIO_0 && rate <= XFER_PIO_5)
- return ide_set_pio_mode(drive, rate);
-
- return ide_set_dma_mode(drive, rate);
-}
-
static void ide_dump_opcode(ide_drive_t *drive)
{
struct request *rq = drive->hwif->rq;
diff --git a/drivers/ide/ide-park.c b/drivers/ide/ide-park.c
index c875a95..f30e521 100644
--- a/drivers/ide/ide-park.c
+++ b/drivers/ide/ide-park.c
@@ -1,5 +1,6 @@
#include <linux/kernel.h>
#include <linux/ide.h>
+#include <linux/hdreg.h>
#include <linux/jiffies.h>
#include <linux/blkdev.h>
@@ -60,6 +61,30 @@ out:
return;
}
+ide_startstop_t ide_do_park_unpark(ide_drive_t *drive, struct request *rq)
+{
+ ide_task_t task;
+ struct ide_taskfile *tf = &task.tf;
+
+ memset(&task, 0, sizeof(task));
+ if (rq->cmd[0] == REQ_PARK_HEADS) {
+ drive->sleep = *(unsigned long *)rq->special;
+ drive->dev_flags |= IDE_DFLAG_SLEEPING;
+ tf->command = ATA_CMD_IDLEIMMEDIATE;
+ tf->feature = 0x44;
+ tf->lbal = 0x4c;
+ tf->lbam = 0x4e;
+ tf->lbah = 0x55;
+ task.tf_flags |= IDE_TFLAG_CUSTOM_HANDLER;
+ } else /* cmd == REQ_UNPARK_HEADS */
+ tf->command = ATA_CMD_CHK_POWER;
+
+ task.tf_flags |= IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+ task.rq = rq;
+ drive->hwif->data_phase = task.data_phase = TASKFILE_NO_DATA;
+ return do_rw_taskfile(drive, &task);
+}
+
ssize_t ide_park_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
diff --git a/drivers/ide/ide-pci-generic.c b/drivers/ide/ide-pci-generic.c
index bddae2b..61111fd 100644
--- a/drivers/ide/ide-pci-generic.c
+++ b/drivers/ide/ide-pci-generic.c
@@ -33,8 +33,6 @@ static int ide_generic_all; /* Set to claim all devices */
module_param_named(all_generic_ide, ide_generic_all, bool, 0444);
MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers.");
-#define IDE_HFLAGS_UMC (IDE_HFLAG_NO_DMA | IDE_HFLAG_FORCE_LEGACY_IRQS)
-
#define DECLARE_GENERIC_PCI_DEV(extra_flags) \
{ \
.name = DRV_NAME, \
@@ -61,7 +59,7 @@ static const struct ide_port_info generic_chipsets[] __devinitdata = {
/* 2: SAMURAI / HT6565 / HINT_IDE */
DECLARE_GENERIC_PCI_DEV(0),
/* 3: UM8673F / UM8886A / UM8886BF */
- DECLARE_GENERIC_PCI_DEV(IDE_HFLAGS_UMC),
+ DECLARE_GENERIC_PCI_DEV(IDE_HFLAG_NO_DMA),
/* 4: VIA_IDE / OPTI621V / Piccolo010{2,3,5} */
DECLARE_GENERIC_PCI_DEV(IDE_HFLAG_NO_AUTODMA),
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 97ea532..9740670 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -181,16 +181,16 @@ static void ide_classify_atapi_dev(ide_drive_t *drive)
* do_identify - identify a drive
* @drive: drive to identify
* @cmd: command used
+ * @id: buffer for IDENTIFY data
*
* Called when we have issued a drive identify command to
* read and parse the results. This function is run with
* interrupts disabled.
*/
-static void do_identify(ide_drive_t *drive, u8 cmd)
+static void do_identify(ide_drive_t *drive, u8 cmd, u16 *id)
{
ide_hwif_t *hwif = drive->hwif;
- u16 *id = drive->id;
char *m = (char *)&id[ATA_ID_PROD];
unsigned long flags;
int bswap = 1;
@@ -233,16 +233,6 @@ static void do_identify(ide_drive_t *drive, u8 cmd)
drive->dev_flags |= IDE_DFLAG_PRESENT;
drive->dev_flags &= ~IDE_DFLAG_DEAD;
- /*
- * Check for an ATAPI device
- */
- if (cmd == ATA_CMD_ID_ATAPI)
- ide_classify_atapi_dev(drive);
- else
- /*
- * Not an ATAPI device: looks like a "regular" hard disk
- */
- ide_classify_ata_dev(drive);
return;
err_misc:
kfree(id);
@@ -250,21 +240,19 @@ err_misc:
}
/**
- * actual_try_to_identify - send ata/atapi identify
+ * ide_dev_read_id - send ATA/ATAPI IDENTIFY command
* @drive: drive to identify
* @cmd: command to use
+ * @id: buffer for IDENTIFY data
*
- * try_to_identify() sends an ATA(PI) IDENTIFY request to a drive
- * and waits for a response. It also monitors irqs while this is
- * happening, in hope of automatically determining which one is
- * being used by the interface.
+ * Sends an ATA(PI) IDENTIFY request to a drive and waits for a response.
*
* Returns: 0 device was identified
* 1 device timed-out (no response to identify request)
* 2 device aborted the command (refused to identify itself)
*/
-static int actual_try_to_identify (ide_drive_t *drive, u8 cmd)
+int ide_dev_read_id(ide_drive_t *drive, u8 cmd, u16 *id)
{
ide_hwif_t *hwif = drive->hwif;
struct ide_io_ports *io_ports = &hwif->io_ports;
@@ -273,6 +261,13 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd)
unsigned long timeout;
u8 s = 0, a = 0;
+ /*
+ * Disable device IRQ. Otherwise we'll get spurious interrupts
+ * during the identify phase that the IRQ handler isn't expecting.
+ */
+ if (io_ports->ctl_addr)
+ tp_ops->set_irq(hwif, 0);
+
/* take a deep breath */
msleep(50);
@@ -317,7 +312,7 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd)
if (OK_STAT(s, ATA_DRQ, BAD_R_STAT)) {
/* drive returned ID */
- do_identify(drive, cmd);
+ do_identify(drive, cmd, id);
/* drive responded with ID */
rc = 0;
/* clear drive IRQ */
@@ -329,63 +324,6 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd)
return rc;
}
-/**
- * try_to_identify - try to identify a drive
- * @drive: drive to probe
- * @cmd: command to use
- *
- * Issue the identify command and then do IRQ probing to
- * complete the identification when needed by finding the
- * IRQ the drive is attached to
- */
-
-static int try_to_identify (ide_drive_t *drive, u8 cmd)
-{
- ide_hwif_t *hwif = drive->hwif;
- const struct ide_tp_ops *tp_ops = hwif->tp_ops;
- int retval;
- int autoprobe = 0;
- unsigned long cookie = 0;
-
- /*
- * Disable device irq unless we need to
- * probe for it. Otherwise we'll get spurious
- * interrupts during the identify-phase that
- * the irq handler isn't expecting.
- */
- if (hwif->io_ports.ctl_addr) {
- if (!hwif->irq) {
- autoprobe = 1;
- cookie = probe_irq_on();
- }
- tp_ops->set_irq(hwif, autoprobe);
- }
-
- retval = actual_try_to_identify(drive, cmd);
-
- if (autoprobe) {
- int irq;
-
- tp_ops->set_irq(hwif, 0);
- /* clear drive IRQ */
- (void)tp_ops->read_status(hwif);
- udelay(5);
- irq = probe_irq_off(cookie);
- if (!hwif->irq) {
- if (irq > 0) {
- hwif->irq = irq;
- } else {
- /* Mmmm.. multiple IRQs..
- * don't know which was ours
- */
- printk(KERN_ERR "%s: IRQ probe failed (0x%lx)\n",
- drive->name, cookie);
- }
- }
- }
- return retval;
-}
-
int ide_busy_sleep(ide_hwif_t *hwif, unsigned long timeout, int altstatus)
{
u8 stat;
@@ -440,6 +378,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
{
ide_hwif_t *hwif = drive->hwif;
const struct ide_tp_ops *tp_ops = hwif->tp_ops;
+ u16 *id = drive->id;
int rc;
u8 present = !!(drive->dev_flags & IDE_DFLAG_PRESENT), stat;
@@ -475,11 +414,10 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
if (OK_STAT(stat, ATA_DRDY, ATA_BUSY) ||
present || cmd == ATA_CMD_ID_ATAPI) {
- /* send cmd and wait */
- if ((rc = try_to_identify(drive, cmd))) {
+ rc = ide_dev_read_id(drive, cmd, id);
+ if (rc)
/* failed: try again */
- rc = try_to_identify(drive,cmd);
- }
+ rc = ide_dev_read_id(drive, cmd, id);
stat = tp_ops->read_status(hwif);
@@ -494,7 +432,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
msleep(50);
tp_ops->exec_command(hwif, ATA_CMD_DEV_RESET);
(void)ide_busy_sleep(hwif, WAIT_WORSTCASE, 0);
- rc = try_to_identify(drive, cmd);
+ rc = ide_dev_read_id(drive, cmd, id);
}
/* ensure drive IRQ is clear */
@@ -517,37 +455,6 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
return rc;
}
-/*
- *
- */
-static void enable_nest (ide_drive_t *drive)
-{
- ide_hwif_t *hwif = drive->hwif;
- const struct ide_tp_ops *tp_ops = hwif->tp_ops;
- u8 stat;
-
- printk(KERN_INFO "%s: enabling %s -- ",
- hwif->name, (char *)&drive->id[ATA_ID_PROD]);
-
- SELECT_DRIVE(drive);
- msleep(50);
- tp_ops->exec_command(hwif, ATA_EXABYTE_ENABLE_NEST);
-
- if (ide_busy_sleep(hwif, WAIT_WORSTCASE, 0)) {
- printk(KERN_CONT "failed (timeout)\n");
- return;
- }
-
- msleep(50);
-
- stat = tp_ops->read_status(hwif);
-
- if (!OK_STAT(stat, 0, BAD_STAT))
- printk(KERN_CONT "failed (status = 0x%02x)\n", stat);
- else
- printk(KERN_CONT "success\n");
-}
-
/**
* probe_for_drives - upper level drive probe
* @drive: drive to probe for
@@ -563,6 +470,8 @@ static void enable_nest (ide_drive_t *drive)
static u8 probe_for_drive(ide_drive_t *drive)
{
char *m;
+ int rc;
+ u8 cmd;
/*
* In order to keep things simple we have an id
@@ -586,21 +495,19 @@ static u8 probe_for_drive(ide_drive_t *drive)
/* skip probing? */
if ((drive->dev_flags & IDE_DFLAG_NOPROBE) == 0) {
-retry:
/* if !(success||timed-out) */
- if (do_probe(drive, ATA_CMD_ID_ATA) >= 2)
+ cmd = ATA_CMD_ID_ATA;
+ rc = do_probe(drive, cmd);
+ if (rc >= 2) {
/* look for ATAPI device */
- (void)do_probe(drive, ATA_CMD_ID_ATAPI);
+ cmd = ATA_CMD_ID_ATAPI;
+ rc = do_probe(drive, cmd);
+ }
if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
/* drive not found */
return 0;
- if (strstr(m, "E X A B Y T E N E S T")) {
- enable_nest(drive);
- goto retry;
- }
-
/* identification failed? */
if ((drive->dev_flags & IDE_DFLAG_ID_READ) == 0) {
if (drive->media == ide_disk) {
@@ -614,8 +521,12 @@ retry:
printk(KERN_WARNING "%s: Unknown device on bus refused identification. Ignoring.\n", drive->name);
drive->dev_flags &= ~IDE_DFLAG_PRESENT;
}
+ } else {
+ if (cmd == ATA_CMD_ID_ATAPI)
+ ide_classify_atapi_dev(drive);
+ else
+ ide_classify_ata_dev(drive);
}
- /* drive was found */
}
if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
@@ -779,7 +690,6 @@ EXPORT_SYMBOL_GPL(ide_undecoded_slave);
static int ide_probe_port(ide_hwif_t *hwif)
{
ide_drive_t *drive;
- unsigned long flags;
unsigned int irqd;
int i, rc = -ENODEV;
@@ -797,9 +707,6 @@ static int ide_probe_port(ide_hwif_t *hwif)
if (irqd)
disable_irq(hwif->irq);
- local_save_flags(flags);
- local_irq_enable_in_hardirq();
-
if (ide_port_wait_ready(hwif) == -EBUSY)
printk(KERN_DEBUG "%s: Wait for ready failed before probe !\n", hwif->name);
@@ -813,8 +720,6 @@ static int ide_probe_port(ide_hwif_t *hwif)
rc = 0;
}
- local_irq_restore(flags);
-
/*
* Use cached IRQ number. It might be (and is...) changed by probe
* code above
@@ -831,22 +736,18 @@ static void ide_port_tune_devices(ide_hwif_t *hwif)
ide_drive_t *drive;
int i;
- ide_port_for_each_dev(i, drive, hwif) {
- if (drive->dev_flags & IDE_DFLAG_PRESENT) {
- if (port_ops && port_ops->quirkproc)
- port_ops->quirkproc(drive);
- }
+ ide_port_for_each_present_dev(i, drive, hwif) {
+ if (port_ops && port_ops->quirkproc)
+ port_ops->quirkproc(drive);
}
- ide_port_for_each_dev(i, drive, hwif) {
- if (drive->dev_flags & IDE_DFLAG_PRESENT) {
- ide_set_max_pio(drive);
+ ide_port_for_each_present_dev(i, drive, hwif) {
+ ide_set_max_pio(drive);
- drive->dev_flags |= IDE_DFLAG_NICE1;
+ drive->dev_flags |= IDE_DFLAG_NICE1;
- if (hwif->dma_ops)
- ide_set_dma(drive);
- }
+ if (hwif->dma_ops)
+ ide_set_dma(drive);
}
}
@@ -917,10 +818,7 @@ static int ide_port_setup_devices(ide_hwif_t *hwif)
int i, j = 0;
mutex_lock(&ide_cfg_mtx);
- ide_port_for_each_dev(i, drive, hwif) {
- if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
- continue;
-
+ ide_port_for_each_present_dev(i, drive, hwif) {
if (ide_init_queue(drive)) {
printk(KERN_ERR "ide: failed to init %s\n",
drive->name);
@@ -946,13 +844,6 @@ static int init_irq (ide_hwif_t *hwif)
irq_handler_t irq_handler;
int sa = 0;
- mutex_lock(&ide_cfg_mtx);
- spin_lock_init(&hwif->lock);
-
- init_timer(&hwif->timer);
- hwif->timer.function = &ide_timer_expiry;
- hwif->timer.data = (unsigned long)hwif;
-
irq_handler = hwif->host->irq_handler;
if (irq_handler == NULL)
irq_handler = ide_intr;
@@ -990,10 +881,8 @@ static int init_irq (ide_hwif_t *hwif)
printk(KERN_CONT " (serialized)");
printk(KERN_CONT "\n");
- mutex_unlock(&ide_cfg_mtx);
return 0;
out_up:
- mutex_unlock(&ide_cfg_mtx);
return 1;
}
@@ -1092,14 +981,9 @@ static void drive_release_dev (struct device *dev)
static int hwif_init(ide_hwif_t *hwif)
{
- int old_irq;
-
if (!hwif->irq) {
- hwif->irq = __ide_default_irq(hwif->io_ports.data_addr);
- if (!hwif->irq) {
- printk(KERN_ERR "%s: disabled, no IRQ\n", hwif->name);
- return 0;
- }
+ printk(KERN_ERR "%s: disabled, no IRQ\n", hwif->name);
+ return 0;
}
if (register_blkdev(hwif->major, hwif->name))
@@ -1117,29 +1001,12 @@ static int hwif_init(ide_hwif_t *hwif)
sg_init_table(hwif->sg_table, hwif->sg_max_nents);
- if (init_irq(hwif) == 0)
- goto done;
-
- old_irq = hwif->irq;
- /*
- * It failed to initialise. Find the default IRQ for
- * this port and try that.
- */
- hwif->irq = __ide_default_irq(hwif->io_ports.data_addr);
- if (!hwif->irq) {
- printk(KERN_ERR "%s: disabled, unable to get IRQ %d\n",
- hwif->name, old_irq);
- goto out;
- }
if (init_irq(hwif)) {
- printk(KERN_ERR "%s: probed IRQ %d and default IRQ %d failed\n",
- hwif->name, old_irq, hwif->irq);
+ printk(KERN_ERR "%s: disabled, unable to get IRQ %d\n",
+ hwif->name, hwif->irq);
goto out;
}
- printk(KERN_WARNING "%s: probed IRQ %d failed, using default\n",
- hwif->name, hwif->irq);
-done:
blk_register_region(MKDEV(hwif->major, 0), MAX_DRIVES << PARTN_BITS,
THIS_MODULE, ata_probe, ata_lock, hwif);
return 1;
@@ -1154,13 +1021,10 @@ static void hwif_register_devices(ide_hwif_t *hwif)
ide_drive_t *drive;
unsigned int i;
- ide_port_for_each_dev(i, drive, hwif) {
+ ide_port_for_each_present_dev(i, drive, hwif) {
struct device *dev = &drive->gendev;
int ret;
- if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
- continue;
-
dev_set_name(dev, "%u.%u", hwif->index, i);
dev->parent = &hwif->gendev;
dev->bus = &ide_bus_type;
@@ -1208,10 +1072,6 @@ static void ide_init_port(ide_hwif_t *hwif, unsigned int port,
if (d->init_iops)
d->init_iops(hwif);
- if ((!hwif->irq && (d->host_flags & IDE_HFLAG_LEGACY_IRQS)) ||
- (d->host_flags & IDE_HFLAG_FORCE_LEGACY_IRQS))
- hwif->irq = port ? 15 : 14;
-
/* ->host_flags may be set by ->init_iops (or even earlier...) */
hwif->host_flags |= d->host_flags;
hwif->pio_mask = d->pio_mask;
@@ -1312,6 +1172,12 @@ static void ide_init_port_data(ide_hwif_t *hwif, unsigned int index)
hwif->name[2] = 'e';
hwif->name[3] = '0' + index;
+ spin_lock_init(&hwif->lock);
+
+ init_timer(&hwif->timer);
+ hwif->timer.function = &ide_timer_expiry;
+ hwif->timer.data = (unsigned long)hwif;
+
init_completion(&hwif->gendev_rel_comp);
hwif->tp_ops = &default_tp_ops;
@@ -1562,7 +1428,7 @@ int ide_host_register(struct ide_host *host, const struct ide_port_info *d,
j++;
- ide_acpi_init(hwif);
+ ide_acpi_init_port(hwif);
if (hwif->present)
ide_acpi_port_init_devices(hwif);
@@ -1619,11 +1485,9 @@ static void __ide_port_unregister_devices(ide_hwif_t *hwif)
ide_drive_t *drive;
int i;
- ide_port_for_each_dev(i, drive, hwif) {
- if (drive->dev_flags & IDE_DFLAG_PRESENT) {
- device_unregister(&drive->gendev);
- wait_for_completion(&drive->gendev_rel_comp);
- }
+ ide_port_for_each_present_dev(i, drive, hwif) {
+ device_unregister(&drive->gendev);
+ wait_for_completion(&drive->gendev_rel_comp);
}
}
diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c
index a7b9287..417cde5 100644
--- a/drivers/ide/ide-proc.c
+++ b/drivers/ide/ide-proc.c
@@ -600,7 +600,7 @@ void ide_proc_port_register_devices(ide_hwif_t *hwif)
int i;
ide_port_for_each_dev(i, drive, hwif) {
- if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0 || drive->proc)
+ if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
continue;
drive->proc = proc_mkdir(drive->name, parent);
diff --git a/drivers/ide/ide-xfer-mode.c b/drivers/ide/ide-xfer-mode.c
new file mode 100644
index 0000000..6910f6a
--- /dev/null
+++ b/drivers/ide/ide-xfer-mode.c
@@ -0,0 +1,246 @@
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/ide.h>
+#include <linux/bitops.h>
+
+static const char *udma_str[] =
+ { "UDMA/16", "UDMA/25", "UDMA/33", "UDMA/44",
+ "UDMA/66", "UDMA/100", "UDMA/133", "UDMA7" };
+static const char *mwdma_str[] =
+ { "MWDMA0", "MWDMA1", "MWDMA2" };
+static const char *swdma_str[] =
+ { "SWDMA0", "SWDMA1", "SWDMA2" };
+static const char *pio_str[] =
+ { "PIO0", "PIO1", "PIO2", "PIO3", "PIO4", "PIO5" };
+
+/**
+ * ide_xfer_verbose - return IDE mode names
+ * @mode: transfer mode
+ *
+ * Returns a constant string giving the name of the mode
+ * requested.
+ */
+
+const char *ide_xfer_verbose(u8 mode)
+{
+ const char *s;
+ u8 i = mode & 0xf;
+
+ if (mode >= XFER_UDMA_0 && mode <= XFER_UDMA_7)
+ s = udma_str[i];
+ else if (mode >= XFER_MW_DMA_0 && mode <= XFER_MW_DMA_2)
+ s = mwdma_str[i];
+ else if (mode >= XFER_SW_DMA_0 && mode <= XFER_SW_DMA_2)
+ s = swdma_str[i];
+ else if (mode >= XFER_PIO_0 && mode <= XFER_PIO_5)
+ s = pio_str[i & 0x7];
+ else if (mode == XFER_PIO_SLOW)
+ s = "PIO SLOW";
+ else
+ s = "XFER ERROR";
+
+ return s;
+}
+EXPORT_SYMBOL(ide_xfer_verbose);
+
+/**
+ * ide_get_best_pio_mode - get PIO mode from drive
+ * @drive: drive to consider
+ * @mode_wanted: preferred mode
+ * @max_mode: highest allowed mode
+ *
+ * This routine returns the recommended PIO settings for a given drive,
+ * based on the drive->id information and the ide_pio_blacklist[].
+ *
+ * Drive PIO mode is auto-selected if 255 is passed as mode_wanted.
+ * This is used by most chipset support modules when "auto-tuning".
+ */
+
+u8 ide_get_best_pio_mode(ide_drive_t *drive, u8 mode_wanted, u8 max_mode)
+{
+ u16 *id = drive->id;
+ int pio_mode = -1, overridden = 0;
+
+ if (mode_wanted != 255)
+ return min_t(u8, mode_wanted, max_mode);
+
+ if ((drive->hwif->host_flags & IDE_HFLAG_PIO_NO_BLACKLIST) == 0)
+ pio_mode = ide_scan_pio_blacklist((char *)&id[ATA_ID_PROD]);
+
+ if (pio_mode != -1) {
+ printk(KERN_INFO "%s: is on PIO blacklist\n", drive->name);
+ } else {
+ pio_mode = id[ATA_ID_OLD_PIO_MODES] >> 8;
+ if (pio_mode > 2) { /* 2 is maximum allowed tPIO value */
+ pio_mode = 2;
+ overridden = 1;
+ }
+
+ if (id[ATA_ID_FIELD_VALID] & 2) { /* ATA2? */
+ if (ata_id_has_iordy(id)) {
+ if (id[ATA_ID_PIO_MODES] & 7) {
+ overridden = 0;
+ if (id[ATA_ID_PIO_MODES] & 4)
+ pio_mode = 5;
+ else if (id[ATA_ID_PIO_MODES] & 2)
+ pio_mode = 4;
+ else
+ pio_mode = 3;
+ }
+ }
+ }
+
+ if (overridden)
+ printk(KERN_INFO "%s: tPIO > 2, assuming tPIO = 2\n",
+ drive->name);
+ }
+
+ if (pio_mode > max_mode)
+ pio_mode = max_mode;
+
+ return pio_mode;
+}
+EXPORT_SYMBOL_GPL(ide_get_best_pio_mode);
+
+int ide_set_pio_mode(ide_drive_t *drive, const u8 mode)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ const struct ide_port_ops *port_ops = hwif->port_ops;
+
+ if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)
+ return 0;
+
+ if (port_ops == NULL || port_ops->set_pio_mode == NULL)
+ return -1;
+
+ /*
+ * TODO: temporary hack for some legacy host drivers that didn't
+ * set transfer mode on the device in ->set_pio_mode method...
+ */
+ if (port_ops->set_dma_mode == NULL) {
+ port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
+ return 0;
+ }
+
+ if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) {
+ if (ide_config_drive_speed(drive, mode))
+ return -1;
+ port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
+ return 0;
+ } else {
+ port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
+ return ide_config_drive_speed(drive, mode);
+ }
+}
+
+int ide_set_dma_mode(ide_drive_t *drive, const u8 mode)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ const struct ide_port_ops *port_ops = hwif->port_ops;
+
+ if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)
+ return 0;
+
+ if (port_ops == NULL || port_ops->set_dma_mode == NULL)
+ return -1;
+
+ if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) {
+ if (ide_config_drive_speed(drive, mode))
+ return -1;
+ port_ops->set_dma_mode(drive, mode);
+ return 0;
+ } else {
+ port_ops->set_dma_mode(drive, mode);
+ return ide_config_drive_speed(drive, mode);
+ }
+}
+EXPORT_SYMBOL_GPL(ide_set_dma_mode);
+
+/* req_pio == "255" for auto-tune */
+void ide_set_pio(ide_drive_t *drive, u8 req_pio)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ const struct ide_port_ops *port_ops = hwif->port_ops;
+ u8 host_pio, pio;
+
+ if (port_ops == NULL || port_ops->set_pio_mode == NULL ||
+ (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
+ return;
+
+ BUG_ON(hwif->pio_mask == 0x00);
+
+ host_pio = fls(hwif->pio_mask) - 1;
+
+ pio = ide_get_best_pio_mode(drive, req_pio, host_pio);
+
+ /*
+ * TODO:
+ * - report device max PIO mode
+ * - check req_pio != 255 against device max PIO mode
+ */
+ printk(KERN_DEBUG "%s: host max PIO%d wanted PIO%d%s selected PIO%d\n",
+ drive->name, host_pio, req_pio,
+ req_pio == 255 ? "(auto-tune)" : "", pio);
+
+ (void)ide_set_pio_mode(drive, XFER_PIO_0 + pio);
+}
+EXPORT_SYMBOL_GPL(ide_set_pio);
+
+/**
+ * ide_rate_filter - filter transfer mode
+ * @drive: IDE device
+ * @speed: desired speed
+ *
+ * Given the available transfer modes this function returns
+ * the best available speed at or below the speed requested.
+ *
+ * TODO: check device PIO capabilities
+ */
+
+static u8 ide_rate_filter(ide_drive_t *drive, u8 speed)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ u8 mode = ide_find_dma_mode(drive, speed);
+
+ if (mode == 0) {
+ if (hwif->pio_mask)
+ mode = fls(hwif->pio_mask) - 1 + XFER_PIO_0;
+ else
+ mode = XFER_PIO_4;
+ }
+
+/* printk("%s: mode 0x%02x, speed 0x%02x\n", __func__, mode, speed); */
+
+ return min(speed, mode);
+}
+
+/**
+ * ide_set_xfer_rate - set transfer rate
+ * @drive: drive to set
+ * @rate: speed to attempt to set
+ *
+ * General helper for setting the speed of an IDE device. This
+ * function knows about user enforced limits from the configuration
+ * which ->set_pio_mode/->set_dma_mode does not.
+ */
+
+int ide_set_xfer_rate(ide_drive_t *drive, u8 rate)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ const struct ide_port_ops *port_ops = hwif->port_ops;
+
+ if (port_ops == NULL || port_ops->set_dma_mode == NULL ||
+ (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
+ return -1;
+
+ rate = ide_rate_filter(drive, rate);
+
+ BUG_ON(rate < XFER_PIO_0);
+
+ if (rate >= XFER_PIO_0 && rate <= XFER_PIO_5)
+ return ide_set_pio_mode(drive, rate);
+
+ return ide_set_dma_mode(drive, rate);
+}
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 0920e3b..92c9b90 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -62,160 +62,6 @@
struct class *ide_port_class;
-/*
- * Locks for IDE setting functionality
- */
-
-DEFINE_MUTEX(ide_setting_mtx);
-
-ide_devset_get(io_32bit, io_32bit);
-
-static int set_io_32bit(ide_drive_t *drive, int arg)
-{
- if (drive->dev_flags & IDE_DFLAG_NO_IO_32BIT)
- return -EPERM;
-
- if (arg < 0 || arg > 1 + (SUPPORT_VLB_SYNC << 1))
- return -EINVAL;
-
- drive->io_32bit = arg;
-
- return 0;
-}
-
-ide_devset_get_flag(ksettings, IDE_DFLAG_KEEP_SETTINGS);
-
-static int set_ksettings(ide_drive_t *drive, int arg)
-{
- if (arg < 0 || arg > 1)
- return -EINVAL;
-
- if (arg)
- drive->dev_flags |= IDE_DFLAG_KEEP_SETTINGS;
- else
- drive->dev_flags &= ~IDE_DFLAG_KEEP_SETTINGS;
-
- return 0;
-}
-
-ide_devset_get_flag(using_dma, IDE_DFLAG_USING_DMA);
-
-static int set_using_dma(ide_drive_t *drive, int arg)
-{
-#ifdef CONFIG_BLK_DEV_IDEDMA
- int err = -EPERM;
-
- if (arg < 0 || arg > 1)
- return -EINVAL;
-
- if (ata_id_has_dma(drive->id) == 0)
- goto out;
-
- if (drive->hwif->dma_ops == NULL)
- goto out;
-
- err = 0;
-
- if (arg) {
- if (ide_set_dma(drive))
- err = -EIO;
- } else
- ide_dma_off(drive);
-
-out:
- return err;
-#else
- if (arg < 0 || arg > 1)
- return -EINVAL;
-
- return -EPERM;
-#endif
-}
-
-/*
- * handle HDIO_SET_PIO_MODE ioctl abusers here, eventually it will go away
- */
-static int set_pio_mode_abuse(ide_hwif_t *hwif, u8 req_pio)
-{
- switch (req_pio) {
- case 202:
- case 201:
- case 200:
- case 102:
- case 101:
- case 100:
- return (hwif->host_flags & IDE_HFLAG_ABUSE_DMA_MODES) ? 1 : 0;
- case 9:
- case 8:
- return (hwif->host_flags & IDE_HFLAG_ABUSE_PREFETCH) ? 1 : 0;
- case 7:
- case 6:
- return (hwif->host_flags & IDE_HFLAG_ABUSE_FAST_DEVSEL) ? 1 : 0;
- default:
- return 0;
- }
-}
-
-static int set_pio_mode(ide_drive_t *drive, int arg)
-{
- ide_hwif_t *hwif = drive->hwif;
- const struct ide_port_ops *port_ops = hwif->port_ops;
-
- if (arg < 0 || arg > 255)
- return -EINVAL;
-
- if (port_ops == NULL || port_ops->set_pio_mode == NULL ||
- (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
- return -ENOSYS;
-
- if (set_pio_mode_abuse(drive->hwif, arg)) {
- if (arg == 8 || arg == 9) {
- unsigned long flags;
-
- /* take lock for IDE_DFLAG_[NO_]UNMASK/[NO_]IO_32BIT */
- spin_lock_irqsave(&hwif->lock, flags);
- port_ops->set_pio_mode(drive, arg);
- spin_unlock_irqrestore(&hwif->lock, flags);
- } else
- port_ops->set_pio_mode(drive, arg);
- } else {
- int keep_dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
-
- ide_set_pio(drive, arg);
-
- if (hwif->host_flags & IDE_HFLAG_SET_PIO_MODE_KEEP_DMA) {
- if (keep_dma)
- ide_dma_on(drive);
- }
- }
-
- return 0;
-}
-
-ide_devset_get_flag(unmaskirq, IDE_DFLAG_UNMASK);
-
-static int set_unmaskirq(ide_drive_t *drive, int arg)
-{
- if (drive->dev_flags & IDE_DFLAG_NO_UNMASK)
- return -EPERM;
-
- if (arg < 0 || arg > 1)
- return -EINVAL;
-
- if (arg)
- drive->dev_flags |= IDE_DFLAG_UNMASK;
- else
- drive->dev_flags &= ~IDE_DFLAG_UNMASK;
-
- return 0;
-}
-
-ide_ext_devset_rw_sync(io_32bit, io_32bit);
-ide_ext_devset_rw_sync(keepsettings, ksettings);
-ide_ext_devset_rw_sync(unmaskirq, unmaskirq);
-ide_ext_devset_rw_sync(using_dma, using_dma);
-__IDE_DEVSET(pio_mode, DS_SYNC, NULL, set_pio_mode);
-
/**
* ide_device_get - get an additional reference to a ide_drive_t
* @drive: device to get a reference to
@@ -527,6 +373,8 @@ static int __init ide_init(void)
goto out_port_class;
}
+ ide_acpi_init();
+
proc_ide_create();
return 0;
diff --git a/drivers/ide/it821x.c b/drivers/ide/it821x.c
index 13b8153..6b9fc95 100644
--- a/drivers/ide/it821x.c
+++ b/drivers/ide/it821x.c
@@ -603,7 +603,7 @@ static void it8212_disable_raid(struct pci_dev *dev)
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20);
}
-static unsigned int init_chipset_it821x(struct pci_dev *dev)
+static int init_chipset_it821x(struct pci_dev *dev)
{
u8 conf;
static char *mode[2] = { "pass through", "smart" };
diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c
index 83643ed..ea48a3e 100644
--- a/drivers/ide/ns87415.c
+++ b/drivers/ide/ns87415.c
@@ -286,9 +286,7 @@ static void __devinit init_hwif_ns87415 (ide_hwif_t *hwif)
}
if (!using_inta)
- hwif->irq = __ide_default_irq(hwif->io_ports.data_addr);
- else if (!hwif->irq && hwif->mate && hwif->mate->irq)
- hwif->irq = hwif->mate->irq; /* share IRQ with mate */
+ hwif->irq = pci_get_legacy_ide_irq(dev, hwif->channel);
if (!hwif->dma_base)
return;
diff --git a/drivers/ide/pdc202xx_new.c b/drivers/ide/pdc202xx_new.c
index f21290c..b68906c 100644
--- a/drivers/ide/pdc202xx_new.c
+++ b/drivers/ide/pdc202xx_new.c
@@ -325,7 +325,7 @@ static void apple_kiwi_init(struct pci_dev *pdev)
}
#endif /* CONFIG_PPC_PMAC */
-static unsigned int init_chipset_pdcnew(struct pci_dev *dev)
+static int init_chipset_pdcnew(struct pci_dev *dev)
{
const char *name = DRV_NAME;
unsigned long dma_base = pci_resource_start(dev, 4);
@@ -444,7 +444,7 @@ static unsigned int init_chipset_pdcnew(struct pci_dev *dev)
#endif
out:
- return dev->irq;
+ return 0;
}
static struct pci_dev * __devinit pdc20270_get_dev2(struct pci_dev *dev)
diff --git a/drivers/ide/pdc202xx_old.c b/drivers/ide/pdc202xx_old.c
index 9719332..cba66eb 100644
--- a/drivers/ide/pdc202xx_old.c
+++ b/drivers/ide/pdc202xx_old.c
@@ -264,7 +264,7 @@ static void pdc202xx_dma_timeout(ide_drive_t *drive)
ide_dma_timeout(drive);
}
-static unsigned int init_chipset_pdc202xx(struct pci_dev *dev)
+static int init_chipset_pdc202xx(struct pci_dev *dev)
{
unsigned long dmabase = pci_resource_start(dev, 4);
u8 udma_speed_flag = 0, primary_mode = 0, secondary_mode = 0;
@@ -290,7 +290,7 @@ static unsigned int init_chipset_pdc202xx(struct pci_dev *dev)
printk("%sACTIVE\n", (inb(dmabase | 0x1f) & 1) ? "" : "IN");
}
out:
- return dev->irq;
+ return 0;
}
static void __devinit pdc202ata4_fixup_irq(struct pci_dev *dev,
diff --git a/drivers/ide/piix.c b/drivers/ide/piix.c
index f1e2e4e..2aa6999 100644
--- a/drivers/ide/piix.c
+++ b/drivers/ide/piix.c
@@ -204,7 +204,7 @@ static void piix_set_dma_mode(ide_drive_t *drive, const u8 speed)
* out to be nice and simple.
*/
-static unsigned int init_chipset_ich(struct pci_dev *dev)
+static int init_chipset_ich(struct pci_dev *dev)
{
u32 extra = 0;
@@ -318,19 +318,12 @@ static const struct ide_port_ops ich_port_ops = {
.cable_detect = piix_cable_detect,
};
-#ifndef CONFIG_IA64
- #define IDE_HFLAGS_PIIX IDE_HFLAG_LEGACY_IRQS
-#else
- #define IDE_HFLAGS_PIIX 0
-#endif
-
#define DECLARE_PIIX_DEV(udma) \
{ \
.name = DRV_NAME, \
.init_hwif = init_hwif_piix, \
.enablebits = {{0x41,0x80,0x80}, {0x43,0x80,0x80}}, \
.port_ops = &piix_port_ops, \
- .host_flags = IDE_HFLAGS_PIIX, \
.pio_mask = ATA_PIO4, \
.swdma_mask = ATA_SWDMA2_ONLY, \
.mwdma_mask = ATA_MWDMA12_ONLY, \
@@ -344,7 +337,6 @@ static const struct ide_port_ops ich_port_ops = {
.init_hwif = init_hwif_piix, \
.enablebits = {{0x41,0x80,0x80}, {0x43,0x80,0x80}}, \
.port_ops = &ich_port_ops, \
- .host_flags = IDE_HFLAGS_PIIX, \
.pio_mask = ATA_PIO4, \
.swdma_mask = ATA_SWDMA2_ONLY, \
.mwdma_mask = ATA_MWDMA12_ONLY, \
@@ -360,8 +352,7 @@ static const struct ide_port_info piix_pci_info[] __devinitdata = {
*/
.name = DRV_NAME,
.enablebits = {{0x6d,0xc0,0x80}, {0x6d,0xc0,0xc0}},
- .host_flags = IDE_HFLAG_ISA_PORTS | IDE_HFLAG_NO_DMA |
- IDE_HFLAGS_PIIX,
+ .host_flags = IDE_HFLAG_ISA_PORTS | IDE_HFLAG_NO_DMA,
.pio_mask = ATA_PIO4,
/* This is a painful system best to let it self tune for now */
},
diff --git a/drivers/ide/serverworks.c b/drivers/ide/serverworks.c
index 382102b..b6554ef 100644
--- a/drivers/ide/serverworks.c
+++ b/drivers/ide/serverworks.c
@@ -175,7 +175,7 @@ static void svwks_set_dma_mode(ide_drive_t *drive, const u8 speed)
pci_write_config_byte(dev, 0x54, ultra_enable);
}
-static unsigned int init_chipset_svwks(struct pci_dev *dev)
+static int init_chipset_svwks(struct pci_dev *dev)
{
unsigned int reg;
u8 btr;
@@ -270,7 +270,7 @@ static unsigned int init_chipset_svwks(struct pci_dev *dev)
pci_write_config_byte(dev, 0x5A, btr);
}
- return dev->irq;
+ return 0;
}
static u8 ata66_svwks_svwks(ide_hwif_t *hwif)
@@ -353,14 +353,11 @@ static const struct ide_port_ops svwks_port_ops = {
.cable_detect = svwks_cable_detect,
};
-#define IDE_HFLAGS_SVWKS IDE_HFLAG_LEGACY_IRQS
-
static const struct ide_port_info serverworks_chipsets[] __devinitdata = {
{ /* 0: OSB4 */
.name = DRV_NAME,
.init_chipset = init_chipset_svwks,
.port_ops = &osb4_port_ops,
- .host_flags = IDE_HFLAGS_SVWKS,
.pio_mask = ATA_PIO4,
.mwdma_mask = ATA_MWDMA2,
.udma_mask = 0x00, /* UDMA is problematic on OSB4 */
@@ -369,7 +366,6 @@ static const struct ide_port_info serverworks_chipsets[] __devinitdata = {
.name = DRV_NAME,
.init_chipset = init_chipset_svwks,
.port_ops = &svwks_port_ops,
- .host_flags = IDE_HFLAGS_SVWKS,
.pio_mask = ATA_PIO4,
.mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA5,
@@ -378,7 +374,6 @@ static const struct ide_port_info serverworks_chipsets[] __devinitdata = {
.name = DRV_NAME,
.init_chipset = init_chipset_svwks,
.port_ops = &svwks_port_ops,
- .host_flags = IDE_HFLAGS_SVWKS,
.pio_mask = ATA_PIO4,
.mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA5,
@@ -387,7 +382,7 @@ static const struct ide_port_info serverworks_chipsets[] __devinitdata = {
.name = DRV_NAME,
.init_chipset = init_chipset_svwks,
.port_ops = &svwks_port_ops,
- .host_flags = IDE_HFLAGS_SVWKS | IDE_HFLAG_SINGLE,
+ .host_flags = IDE_HFLAG_SINGLE,
.pio_mask = ATA_PIO4,
.mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA5,
@@ -396,7 +391,7 @@ static const struct ide_port_info serverworks_chipsets[] __devinitdata = {
.name = DRV_NAME,
.init_chipset = init_chipset_svwks,
.port_ops = &svwks_port_ops,
- .host_flags = IDE_HFLAGS_SVWKS | IDE_HFLAG_SINGLE,
+ .host_flags = IDE_HFLAG_SINGLE,
.pio_mask = ATA_PIO4,
.mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA5,
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index e85d1ed..24bc884 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -305,7 +305,6 @@ static int ide_pci_check_iomem(struct pci_dev *dev, const struct ide_port_info *
* @dev: PCI device holding interface
* @d: IDE port info
* @port: port number
- * @irq: PCI IRQ
* @hw: hw_regs_t instance corresponding to this port
*
* Perform the initial set up for the hardware interface structure. This
@@ -316,7 +315,7 @@ static int ide_pci_check_iomem(struct pci_dev *dev, const struct ide_port_info *
*/
static int ide_hw_configure(struct pci_dev *dev, const struct ide_port_info *d,
- unsigned int port, int irq, hw_regs_t *hw)
+ unsigned int port, hw_regs_t *hw)
{
unsigned long ctl = 0, base = 0;
@@ -344,7 +343,6 @@ static int ide_hw_configure(struct pci_dev *dev, const struct ide_port_info *d,
}
memset(hw, 0, sizeof(*hw));
- hw->irq = irq;
hw->dev = &dev->dev;
hw->chipset = d->chipset ? d->chipset : ide_pci;
ide_std_init_ports(hw, base, ctl | 2);
@@ -448,7 +446,6 @@ out:
* ide_pci_setup_ports - configure ports/devices on PCI IDE
* @dev: PCI device
* @d: IDE port info
- * @pciirq: IRQ line
* @hw: hw_regs_t instances corresponding to this PCI IDE device
* @hws: hw_regs_t pointers table to update
*
@@ -462,7 +459,7 @@ out:
*/
void ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d,
- int pciirq, hw_regs_t *hw, hw_regs_t **hws)
+ hw_regs_t *hw, hw_regs_t **hws)
{
int channels = (d->host_flags & IDE_HFLAG_SINGLE) ? 1 : 2, port;
u8 tmp;
@@ -481,7 +478,7 @@ void ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d,
continue; /* port not enabled */
}
- if (ide_hw_configure(dev, d, port, pciirq, hw + port))
+ if (ide_hw_configure(dev, d, port, hw + port))
continue;
*(hws + port) = hw + port;
@@ -524,7 +521,7 @@ static int do_ide_setup_pci_device(struct pci_dev *dev,
if (noisy)
printk(KERN_INFO "%s %s: not 100%% native mode: will "
"probe irqs later\n", d->name, pci_name(dev));
- pciirq = ret;
+ pciirq = 0;
} else if (!pciirq && noisy) {
printk(KERN_WARNING "%s %s: bad irq (%d): will probe later\n",
d->name, pci_name(dev), pciirq);
@@ -549,7 +546,7 @@ int ide_pci_init_one(struct pci_dev *dev, const struct ide_port_info *d,
if (ret < 0)
goto out;
- ide_pci_setup_ports(dev, d, 0, &hw[0], &hws[0]);
+ ide_pci_setup_ports(dev, d, &hw[0], &hws[0]);
host = ide_host_alloc(d, hws);
if (host == NULL) {
@@ -568,7 +565,11 @@ int ide_pci_init_one(struct pci_dev *dev, const struct ide_port_info *d,
goto out;
/* fixup IRQ */
- hw[1].irq = hw[0].irq = ret;
+ if (ide_pci_is_in_compatibility_mode(dev)) {
+ hw[0].irq = pci_get_legacy_ide_irq(dev, 0);
+ hw[1].irq = pci_get_legacy_ide_irq(dev, 1);
+ } else
+ hw[1].irq = hw[0].irq = ret;
ret = ide_host_register(host, d, hws);
if (ret)
@@ -591,7 +592,7 @@ int ide_pci_init_two(struct pci_dev *dev1, struct pci_dev *dev2,
if (ret < 0)
goto out;
- ide_pci_setup_ports(pdev[i], d, 0, &hw[i*2], &hws[i*2]);
+ ide_pci_setup_ports(pdev[i], d, &hw[i*2], &hws[i*2]);
}
host = ide_host_alloc(d, hws);
@@ -619,7 +620,11 @@ int ide_pci_init_two(struct pci_dev *dev1, struct pci_dev *dev2,
goto out;
/* fixup IRQ */
- hw[i*2 + 1].irq = hw[i*2].irq = ret;
+ if (ide_pci_is_in_compatibility_mode(pdev[i])) {
+ hw[i*2].irq = pci_get_legacy_ide_irq(pdev[i], 0);
+ hw[i*2 + 1].irq = pci_get_legacy_ide_irq(pdev[i], 1);
+ } else
+ hw[i*2 + 1].irq = hw[i*2].irq = ret;
}
ret = ide_host_register(host, d, hws);
diff --git a/drivers/ide/siimage.c b/drivers/ide/siimage.c
index cb2b352..1811ae9 100644
--- a/drivers/ide/siimage.c
+++ b/drivers/ide/siimage.c
@@ -464,7 +464,7 @@ static void sil_sata_pre_reset(ide_drive_t *drive)
* to 133 MHz clocking if the system isn't already set up to do it.
*/
-static unsigned int init_chipset_siimage(struct pci_dev *dev)
+static int init_chipset_siimage(struct pci_dev *dev)
{
struct ide_host *host = pci_get_drvdata(dev);
void __iomem *ioaddr = host->host_priv;
diff --git a/drivers/ide/sis5513.c b/drivers/ide/sis5513.c
index 9ec1a4a..afca22b 100644
--- a/drivers/ide/sis5513.c
+++ b/drivers/ide/sis5513.c
@@ -447,7 +447,7 @@ static int __devinit sis_find_family(struct pci_dev *dev)
return chipset_family;
}
-static unsigned int init_chipset_sis5513(struct pci_dev *dev)
+static int init_chipset_sis5513(struct pci_dev *dev)
{
/* Make general config ops here
1/ tell IDE channels to operate in Compatibility mode only
@@ -563,7 +563,7 @@ static const struct ide_port_info sis5513_chipset __devinitdata = {
.name = DRV_NAME,
.init_chipset = init_chipset_sis5513,
.enablebits = { {0x4a, 0x02, 0x02}, {0x4a, 0x04, 0x04} },
- .host_flags = IDE_HFLAG_LEGACY_IRQS | IDE_HFLAG_NO_AUTODMA,
+ .host_flags = IDE_HFLAG_NO_AUTODMA,
.pio_mask = ATA_PIO4,
.mwdma_mask = ATA_MWDMA2,
};
diff --git a/drivers/ide/sl82c105.c b/drivers/ide/sl82c105.c
index 6297956..dba213c 100644
--- a/drivers/ide/sl82c105.c
+++ b/drivers/ide/sl82c105.c
@@ -271,7 +271,7 @@ static u8 sl82c105_bridge_revision(struct pci_dev *dev)
* channel 0 here at least, but channel 1 has to be enabled by
* firmware or arch code. We still set both to 16 bits mode.
*/
-static unsigned int init_chipset_sl82c105(struct pci_dev *dev)
+static int init_chipset_sl82c105(struct pci_dev *dev)
{
u32 val;
@@ -281,7 +281,7 @@ static unsigned int init_chipset_sl82c105(struct pci_dev *dev)
val |= CTRL_P0EN | CTRL_P0F16 | CTRL_P1F16;
pci_write_config_dword(dev, 0x40, val);
- return dev->irq;
+ return 0;
}
static const struct ide_port_ops sl82c105_port_ops = {
diff --git a/drivers/ide/slc90e66.c b/drivers/ide/slc90e66.c
index 40b4b94..f55d7d6 100644
--- a/drivers/ide/slc90e66.c
+++ b/drivers/ide/slc90e66.c
@@ -136,7 +136,6 @@ static const struct ide_port_info slc90e66_chipset __devinitdata = {
.name = DRV_NAME,
.enablebits = { {0x41, 0x80, 0x80}, {0x43, 0x80, 0x80} },
.port_ops = &slc90e66_port_ops,
- .host_flags = IDE_HFLAG_LEGACY_IRQS,
.pio_mask = ATA_PIO4,
.swdma_mask = ATA_SWDMA2_ONLY,
.mwdma_mask = ATA_MWDMA12_ONLY,
diff --git a/drivers/ide/trm290.c b/drivers/ide/trm290.c
index b6a1285..1c09e54 100644
--- a/drivers/ide/trm290.c
+++ b/drivers/ide/trm290.c
@@ -277,9 +277,6 @@ static void __devinit init_hwif_trm290(ide_hwif_t *hwif)
if (reg & 0x10)
/* legacy mode */
hwif->irq = hwif->channel ? 15 : 14;
- else if (!hwif->irq && hwif->mate && hwif->mate->irq)
- /* sharing IRQ with mate */
- hwif->irq = hwif->mate->irq;
#if 1
{
diff --git a/drivers/ide/via82cxxx.c b/drivers/ide/via82cxxx.c
index 6092fe3..3ff7231 100644
--- a/drivers/ide/via82cxxx.c
+++ b/drivers/ide/via82cxxx.c
@@ -267,7 +267,7 @@ static void via_cable_detect(struct via82cxxx_dev *vdev, u32 u)
* and initialize its drive independent registers.
*/
-static unsigned int init_chipset_via82cxxx(struct pci_dev *dev)
+static int init_chipset_via82cxxx(struct pci_dev *dev)
{
struct ide_host *host = pci_get_drvdata(dev);
struct via82cxxx_dev *vdev = host->host_priv;
@@ -443,16 +443,6 @@ static int __devinit via_init_one(struct pci_dev *dev, const struct pci_device_i
if ((via_config->flags & VIA_NO_UNMASK) == 0)
d.host_flags |= IDE_HFLAG_UNMASK_IRQS;
-#ifdef CONFIG_PPC_CHRP
- if (machine_is(chrp) && _chrp_type == _CHRP_Pegasos)
- d.host_flags |= IDE_HFLAG_FORCE_LEGACY_IRQS;
-#endif
-
-#ifdef CONFIG_AMIGAONE
- if (machine_is(amigaone))
- d.host_flags |= IDE_HFLAG_FORCE_LEGACY_IRQS;
-#endif
-
d.udma_mask = via_config->udma_mask;
vdev = kzalloc(sizeof(*vdev), GFP_KERNEL);
diff --git a/include/asm-frv/ide.h b/include/asm-frv/ide.h
deleted file mode 100644
index 3610766..0000000
--- a/include/asm-frv/ide.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/* ide.h: FRV IDE declarations
- *
- * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@xxxxxxxxxx)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _ASM_IDE_H
-#define _ASM_IDE_H
-
-#ifdef __KERNEL__
-
-#include <asm/setup.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-
-#include <asm-generic/ide_iops.h>
-
-#endif /* __KERNEL__ */
-#endif /* _ASM_IDE_H */
diff --git a/include/asm-mn10300/ide.h b/include/asm-mn10300/ide.h
deleted file mode 100644
index 6adcdd9..0000000
--- a/include/asm-mn10300/ide.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/* MN10300 Arch-specific IDE code
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@xxxxxxxxxx)
- * - Derived from include/asm-i386/ide.h
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_IDE_H
-#define _ASM_IDE_H
-
-#ifdef __KERNEL__
-
-#include <asm/intctl-regs.h>
-
-#undef SUPPORT_SLOW_DATA_PORTS
-#define SUPPORT_SLOW_DATA_PORTS 0
-
-#undef SUPPORT_VLB_SYNC
-#define SUPPORT_VLB_SYNC 0
-
-/*
- * some bits needed for parts of the IDE subsystem to compile
- */
-#define __ide_mm_insw(port, addr, n) \
- insw((unsigned long) (port), (addr), (n))
-#define __ide_mm_insl(port, addr, n) \
- insl((unsigned long) (port), (addr), (n))
-#define __ide_mm_outsw(port, addr, n) \
- outsw((unsigned long) (port), (addr), (n))
-#define __ide_mm_outsl(port, addr, n) \
- outsl((unsigned long) (port), (addr), (n))
-
-#endif /* __KERNEL__ */
-#endif /* _ASM_IDE_H */
diff --git a/include/asm-mn10300/pci.h b/include/asm-mn10300/pci.h
index cd9cc5c..0517b45 100644
--- a/include/asm-mn10300/pci.h
+++ b/include/asm-mn10300/pci.h
@@ -121,4 +121,9 @@ pcibios_select_root(struct pci_dev *pdev, struct resource *res)
#define pcibios_scan_all_fns(a, b) 0
+static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
+{
+ return channel ? 15 : 14;
+}
+
#endif /* _ASM_PCI_H */
diff --git a/include/linux/ata.h b/include/linux/ata.h
index 9a061ac..68132c4 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -244,8 +244,6 @@ enum {
ATA_CMD_MEDIA_UNLOCK = 0xDF,
/* marked obsolete in the ATA/ATAPI-7 spec */
ATA_CMD_RESTORE = 0x10,
- /* EXABYTE specific */
- ATA_EXABYTE_ENABLE_NEST = 0xF0,
/* READ_LOG_EXT pages */
ATA_LOG_SATA_NCQ = 0x10,
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 25087ae..854eba8 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -26,7 +26,7 @@
#include <asm/io.h>
#include <asm/mutex.h>
-#if defined(CONFIG_CRIS) || defined(CONFIG_FRV)
+#if defined(CONFIG_CRIS) || defined(CONFIG_FRV) || defined(CONFIG_MN10300)
# define SUPPORT_VLB_SYNC 0
#else
# define SUPPORT_VLB_SYNC 1
@@ -193,24 +193,8 @@ static inline void ide_std_init_ports(hw_regs_t *hw,
hw->io_ports.ctl_addr = ctl_addr;
}
-/* for IDE PCI controllers in legacy mode, temporary */
-static inline int __ide_default_irq(unsigned long base)
-{
- switch (base) {
-#ifdef CONFIG_IA64
- case 0x1f0: return isa_irq_to_vector(14);
- case 0x170: return isa_irq_to_vector(15);
-#else
- case 0x1f0: return 14;
- case 0x170: return 15;
-#endif
- }
- return 0;
-}
-
-#if defined(CONFIG_ARM) || defined(CONFIG_FRV) || defined(CONFIG_M68K) || \
- defined(CONFIG_MIPS) || defined(CONFIG_MN10300) || defined(CONFIG_PARISC) \
- || defined(CONFIG_PPC) || defined(CONFIG_SPARC) || defined(CONFIG_SPARC64)
+#if defined(CONFIG_ARM) || defined(CONFIG_M68K) || defined(CONFIG_MIPS) || \
+ defined(CONFIG_PARISC) || defined(CONFIG_PPC) || defined(CONFIG_SPARC)
#include <asm/ide.h>
#else
#include <asm-generic/ide_iops.h>
@@ -866,7 +850,7 @@ struct ide_host {
ide_hwif_t *ports[MAX_HOST_PORTS + 1];
unsigned int n_ports;
struct device *dev[2];
- unsigned int (*init_chipset)(struct pci_dev *);
+ int (*init_chipset)(struct pci_dev *);
irq_handler_t irq_handler;
unsigned long host_flags;
void *host_priv;
@@ -1146,11 +1130,14 @@ int generic_ide_ioctl(ide_drive_t *, struct block_device *, unsigned, unsigned l
extern int ide_vlb_clk;
extern int ide_pci_clk;
-extern int ide_end_request (ide_drive_t *drive, int uptodate, int nrsecs);
-int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq,
- int uptodate, int nr_sectors);
+int ide_end_request(ide_drive_t *, int, int);
+int ide_end_dequeued_request(ide_drive_t *, struct request *, int, int);
+void ide_kill_rq(ide_drive_t *, struct request *);
-extern void ide_set_handler (ide_drive_t *drive, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry);
+void __ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int,
+ ide_expiry_t *);
+void ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int,
+ ide_expiry_t *);
void ide_execute_command(ide_drive_t *, u8, ide_handler_t *, unsigned int,
ide_expiry_t *);
@@ -1169,13 +1156,14 @@ int ide_busy_sleep(ide_hwif_t *, unsigned long, int);
int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long);
+ide_startstop_t ide_do_park_unpark(ide_drive_t *, struct request *);
+ide_startstop_t ide_do_devset(ide_drive_t *, struct request *);
+
extern ide_startstop_t ide_do_reset (ide_drive_t *);
extern int ide_devset_execute(ide_drive_t *drive,
const struct ide_devset *setting, int arg);
-extern void ide_do_drive_cmd(ide_drive_t *, struct request *);
-
extern void ide_end_drive_cmd(ide_drive_t *, u8, u8);
void ide_tf_dump(const char *, struct ide_taskfile *);
@@ -1200,10 +1188,6 @@ void SELECT_MASK(ide_drive_t *, int);
u8 ide_read_error(ide_drive_t *);
void ide_read_bcount_and_ireason(ide_drive_t *, u16 *, u8 *);
-extern int drive_is_ready(ide_drive_t *);
-
-void ide_pktcmd_tf_load(ide_drive_t *, u32, u16, u8);
-
int ide_check_atapi_device(ide_drive_t *, const char *);
void ide_init_pc(struct ide_atapi_pc *);
@@ -1251,6 +1235,8 @@ int ide_no_data_taskfile(ide_drive_t *, ide_task_t *);
int ide_taskfile_ioctl(ide_drive_t *, unsigned int, unsigned long);
+int ide_dev_read_id(ide_drive_t *, u8, u16 *);
+
extern int ide_driveid_update(ide_drive_t *);
extern int ide_config_drive_speed(ide_drive_t *, u8);
extern u8 eighty_ninty_three (ide_drive_t *);
@@ -1280,7 +1266,7 @@ static inline int ide_pci_is_in_compatibility_mode(struct pci_dev *dev)
return 0;
}
-void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, int,
+void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *,
hw_regs_t *, hw_regs_t **);
void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *);
@@ -1349,10 +1335,6 @@ enum {
IDE_HFLAG_ERROR_STOPS_FIFO = (1 << 19),
/* serialize ports */
IDE_HFLAG_SERIALIZE = (1 << 20),
- /* use legacy IRQs */
- IDE_HFLAG_LEGACY_IRQS = (1 << 21),
- /* force use of legacy IRQs */
- IDE_HFLAG_FORCE_LEGACY_IRQS = (1 << 22),
/* host is TRM290 */
IDE_HFLAG_TRM290 = (1 << 23),
/* use 32-bit I/O ops */
@@ -1380,7 +1362,7 @@ enum {
struct ide_port_info {
char *name;
- unsigned int (*init_chipset)(struct pci_dev *);
+ int (*init_chipset)(struct pci_dev *);
void (*init_iops)(ide_hwif_t *);
void (*init_hwif)(ide_hwif_t *);
int (*init_dma)(ide_hwif_t *,
@@ -1471,6 +1453,7 @@ static inline int config_drive_for_dma(ide_drive_t *drive) { return 0; }
void ide_dma_lost_irq(ide_drive_t *);
void ide_dma_timeout(ide_drive_t *);
+ide_startstop_t ide_dma_timeout_retry(ide_drive_t *, int);
#else
static inline int ide_id_dma_bug(ide_drive_t *drive) { return 0; }
@@ -1482,21 +1465,24 @@ static inline void ide_dma_on(ide_drive_t *drive) { ; }
static inline void ide_dma_verbose(ide_drive_t *drive) { ; }
static inline int ide_set_dma(ide_drive_t *drive) { return 1; }
static inline void ide_check_dma_crc(ide_drive_t *drive) { ; }
+static inline ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error) { return ide_stopped; }
static inline void ide_release_dma_engine(ide_hwif_t *hwif) { ; }
#endif /* CONFIG_BLK_DEV_IDEDMA */
#ifdef CONFIG_BLK_DEV_IDEACPI
+int ide_acpi_init(void);
extern int ide_acpi_exec_tfs(ide_drive_t *drive);
extern void ide_acpi_get_timing(ide_hwif_t *hwif);
extern void ide_acpi_push_timing(ide_hwif_t *hwif);
-extern void ide_acpi_init(ide_hwif_t *hwif);
+void ide_acpi_init_port(ide_hwif_t *);
void ide_acpi_port_init_devices(ide_hwif_t *);
extern void ide_acpi_set_state(ide_hwif_t *hwif, int on);
#else
+static inline int ide_acpi_init(void) { return 0; }
static inline int ide_acpi_exec_tfs(ide_drive_t *drive) { return 0; }
static inline void ide_acpi_get_timing(ide_hwif_t *hwif) { ; }
static inline void ide_acpi_push_timing(ide_hwif_t *hwif) { ; }
-static inline void ide_acpi_init(ide_hwif_t *hwif) { ; }
+static inline void ide_acpi_init_port(ide_hwif_t *hwif) { ; }
static inline void ide_acpi_port_init_devices(ide_hwif_t *hwif) { ; }
static inline void ide_acpi_set_state(ide_hwif_t *hwif, int on) {}
#endif
@@ -1530,9 +1516,7 @@ static inline void ide_set_hwifdata (ide_hwif_t * hwif, void *data)
hwif->hwif_data = data;
}
-const char *ide_xfer_verbose(u8 mode);
extern void ide_toggle_bounce(ide_drive_t *drive, int on);
-extern int ide_set_xfer_rate(ide_drive_t *drive, u8 rate);
u64 ide_get_lba_addr(struct ide_taskfile *, int);
u8 ide_dump_status(ide_drive_t *, const char *, u8);
@@ -1571,14 +1555,18 @@ void ide_timing_merge(struct ide_timing *, struct ide_timing *,
struct ide_timing *, unsigned int);
int ide_timing_compute(ide_drive_t *, u8, struct ide_timing *, int, int);
+#ifdef CONFIG_IDE_XFER_MODE
int ide_scan_pio_blacklist(char *);
-
+const char *ide_xfer_verbose(u8);
u8 ide_get_best_pio_mode(ide_drive_t *, u8, u8);
-
int ide_set_pio_mode(ide_drive_t *, u8);
int ide_set_dma_mode(ide_drive_t *, u8);
-
void ide_set_pio(ide_drive_t *, u8);
+int ide_set_xfer_rate(ide_drive_t *, u8);
+#else
+static inline void ide_set_pio(ide_drive_t *drive, u8 pio) { ; }
+static inline int ide_set_xfer_rate(ide_drive_t *drive, u8 rate) { return -1; }
+#endif
static inline void ide_set_max_pio(ide_drive_t *drive)
{
@@ -1611,6 +1599,10 @@ static inline ide_drive_t *ide_get_pair_dev(ide_drive_t *drive)
#define ide_port_for_each_dev(i, dev, port) \
for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++)
+#define ide_port_for_each_present_dev(i, dev, port) \
+ for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++) \
+ if ((dev)->dev_flags & IDE_DFLAG_PRESENT)
+
#define ide_host_for_each_port(i, port, host) \
for ((i) = 0; ((port) = (host)->ports[i]) || (i) < MAX_HOST_PORTS; (i)++)
--
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