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-rw-r--r--drivers/ide/Kconfig8
-rw-r--r--drivers/ide/Makefile4
-rw-r--r--drivers/ide/aec62xx.c4
-rw-r--r--drivers/ide/alim15x3.c2
-rw-r--r--drivers/ide/amd74xx.c14
-rw-r--r--drivers/ide/atiixp.c3
-rw-r--r--drivers/ide/cmd64x.c2
-rw-r--r--drivers/ide/cs5520.c3
-rw-r--r--drivers/ide/cs5530.c2
-rw-r--r--drivers/ide/delkin_cb.c2
-rw-r--r--drivers/ide/hpt366.c4
-rw-r--r--drivers/ide/ide-acpi.c214
-rw-r--r--drivers/ide/ide-atapi.c41
-rw-r--r--drivers/ide/ide-cd.c4
-rw-r--r--drivers/ide/ide-devsets.c190
-rw-r--r--drivers/ide/ide-dma.c57
-rw-r--r--drivers/ide/ide-eh.c428
-rw-r--r--drivers/ide/ide-io-std.c316
-rw-r--r--drivers/ide/ide-io.c320
-rw-r--r--drivers/ide/ide-iops.c742
-rw-r--r--drivers/ide/ide-lib.c240
-rw-r--r--drivers/ide/ide-park.c25
-rw-r--r--drivers/ide/ide-pci-generic.c4
-rw-r--r--drivers/ide/ide-probe.c257
-rw-r--r--drivers/ide/ide-proc.c2
-rw-r--r--drivers/ide/ide-xfer-mode.c246
-rw-r--r--drivers/ide/ide.c156
-rw-r--r--drivers/ide/it821x.c2
-rw-r--r--drivers/ide/ns87415.c4
-rw-r--r--drivers/ide/pdc202xx_new.c4
-rw-r--r--drivers/ide/pdc202xx_old.c4
-rw-r--r--drivers/ide/piix.c13
-rw-r--r--drivers/ide/serverworks.c13
-rw-r--r--drivers/ide/setup-pci.c27
-rw-r--r--drivers/ide/siimage.c2
-rw-r--r--drivers/ide/sis5513.c4
-rw-r--r--drivers/ide/sl82c105.c4
-rw-r--r--drivers/ide/slc90e66.c1
-rw-r--r--drivers/ide/trm290.c3
-rw-r--r--drivers/ide/via82cxxx.c12
40 files changed, 1533 insertions, 1850 deletions
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 5ea3bfad172a..640c99207242 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -56,8 +56,12 @@ if IDE
56 56
57comment "Please see Documentation/ide/ide.txt for help/info on IDE drives" 57comment "Please see Documentation/ide/ide.txt for help/info on IDE drives"
58 58
59config IDE_XFER_MODE
60 bool
61
59config IDE_TIMINGS 62config IDE_TIMINGS
60 bool 63 bool
64 select IDE_XFER_MODE
61 65
62config IDE_ATAPI 66config IDE_ATAPI
63 bool 67 bool
@@ -698,6 +702,7 @@ config BLK_DEV_IDE_PMAC_ATA100FIRST
698config BLK_DEV_IDE_AU1XXX 702config BLK_DEV_IDE_AU1XXX
699 bool "IDE for AMD Alchemy Au1200" 703 bool "IDE for AMD Alchemy Au1200"
700 depends on SOC_AU1200 704 depends on SOC_AU1200
705 select IDE_XFER_MODE
701choice 706choice
702 prompt "IDE Mode for AMD Alchemy Au1200" 707 prompt "IDE Mode for AMD Alchemy Au1200"
703 default CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA 708 default CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA
@@ -871,6 +876,7 @@ config BLK_DEV_ALI14XX
871 876
872config BLK_DEV_DTC2278 877config BLK_DEV_DTC2278
873 tristate "DTC-2278 support" 878 tristate "DTC-2278 support"
879 select IDE_XFER_MODE
874 select IDE_LEGACY 880 select IDE_LEGACY
875 help 881 help
876 This driver is enabled at runtime using the "dtc2278.probe" kernel 882 This driver is enabled at runtime using the "dtc2278.probe" kernel
@@ -902,6 +908,7 @@ config BLK_DEV_QD65XX
902 908
903config BLK_DEV_UMC8672 909config BLK_DEV_UMC8672
904 tristate "UMC-8672 support" 910 tristate "UMC-8672 support"
911 select IDE_XFER_MODE
905 select IDE_LEGACY 912 select IDE_LEGACY
906 help 913 help
907 This driver is enabled at runtime using the "umc8672.probe" kernel 914 This driver is enabled at runtime using the "umc8672.probe" kernel
@@ -915,5 +922,6 @@ endif
915config BLK_DEV_IDEDMA 922config BLK_DEV_IDEDMA
916 def_bool BLK_DEV_IDEDMA_SFF || \ 923 def_bool BLK_DEV_IDEDMA_SFF || \
917 BLK_DEV_IDEDMA_ICS || BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA 924 BLK_DEV_IDEDMA_ICS || BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
925 select IDE_XFER_MODE
918 926
919endif # IDE 927endif # IDE
diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile
index 1c326d94aa6d..9b4bbe1cdc1a 100644
--- a/drivers/ide/Makefile
+++ b/drivers/ide/Makefile
@@ -5,9 +5,11 @@
5EXTRA_CFLAGS += -Idrivers/ide 5EXTRA_CFLAGS += -Idrivers/ide
6 6
7ide-core-y += ide.o ide-ioctls.o ide-io.o ide-iops.o ide-lib.o ide-probe.o \ 7ide-core-y += ide.o ide-ioctls.o ide-io.o ide-iops.o ide-lib.o ide-probe.o \
8 ide-taskfile.o ide-pm.o ide-park.o ide-pio-blacklist.o ide-sysfs.o 8 ide-taskfile.o ide-pm.o ide-park.o ide-sysfs.o ide-devsets.o \
9 ide-io-std.o ide-eh.o
9 10
10# core IDE code 11# core IDE code
12ide-core-$(CONFIG_IDE_XFER_MODE) += ide-pio-blacklist.o ide-xfer-mode.o
11ide-core-$(CONFIG_IDE_TIMINGS) += ide-timings.o 13ide-core-$(CONFIG_IDE_TIMINGS) += ide-timings.o
12ide-core-$(CONFIG_IDE_ATAPI) += ide-atapi.o 14ide-core-$(CONFIG_IDE_ATAPI) += ide-atapi.o
13ide-core-$(CONFIG_BLK_DEV_IDEPCI) += setup-pci.o 15ide-core-$(CONFIG_BLK_DEV_IDEPCI) += setup-pci.o
diff --git a/drivers/ide/aec62xx.c b/drivers/ide/aec62xx.c
index 4485b9c6f0e6..878f8ec6dbe1 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)
139 drive->hwif->port_ops->set_dma_mode(drive, pio + XFER_PIO_0); 139 drive->hwif->port_ops->set_dma_mode(drive, pio + XFER_PIO_0);
140} 140}
141 141
142static unsigned int init_chipset_aec62xx(struct pci_dev *dev) 142static int init_chipset_aec62xx(struct pci_dev *dev)
143{ 143{
144 /* These are necessary to get AEC6280 Macintosh cards to work */ 144 /* These are necessary to get AEC6280 Macintosh cards to work */
145 if ((dev->device == PCI_DEVICE_ID_ARTOP_ATP865) || 145 if ((dev->device == PCI_DEVICE_ID_ARTOP_ATP865) ||
@@ -156,7 +156,7 @@ static unsigned int init_chipset_aec62xx(struct pci_dev *dev)
156 pci_write_config_byte(dev, 0x4a, reg4ah | 0x80); 156 pci_write_config_byte(dev, 0x4a, reg4ah | 0x80);
157 } 157 }
158 158
159 return dev->irq; 159 return 0;
160} 160}
161 161
162static u8 atp86x_cable_detect(ide_hwif_t *hwif) 162static u8 atp86x_cable_detect(ide_hwif_t *hwif)
diff --git a/drivers/ide/alim15x3.c b/drivers/ide/alim15x3.c
index 66f43083408b..d3513b6b8530 100644
--- a/drivers/ide/alim15x3.c
+++ b/drivers/ide/alim15x3.c
@@ -212,7 +212,7 @@ static int ali15x3_dma_setup(ide_drive_t *drive)
212 * appropriate also sets up the 1533 southbridge. 212 * appropriate also sets up the 1533 southbridge.
213 */ 213 */
214 214
215static unsigned int init_chipset_ali15x3(struct pci_dev *dev) 215static int init_chipset_ali15x3(struct pci_dev *dev)
216{ 216{
217 unsigned long flags; 217 unsigned long flags;
218 u8 tmpbyte; 218 u8 tmpbyte;
diff --git a/drivers/ide/amd74xx.c b/drivers/ide/amd74xx.c
index 77267c859965..628cd2e5fed8 100644
--- a/drivers/ide/amd74xx.c
+++ b/drivers/ide/amd74xx.c
@@ -140,7 +140,7 @@ static void amd7411_cable_detect(struct pci_dev *dev)
140 * The initialization callback. Initialize drive independent registers. 140 * The initialization callback. Initialize drive independent registers.
141 */ 141 */
142 142
143static unsigned int init_chipset_amd74xx(struct pci_dev *dev) 143static int init_chipset_amd74xx(struct pci_dev *dev)
144{ 144{
145 u8 t = 0, offset = amd_offset(dev); 145 u8 t = 0, offset = amd_offset(dev);
146 146
@@ -172,7 +172,7 @@ static unsigned int init_chipset_amd74xx(struct pci_dev *dev)
172 t |= 0xf0; 172 t |= 0xf0;
173 pci_write_config_byte(dev, AMD_IDE_CONFIG + offset, t); 173 pci_write_config_byte(dev, AMD_IDE_CONFIG + offset, t);
174 174
175 return dev->irq; 175 return 0;
176} 176}
177 177
178static u8 amd_cable_detect(ide_hwif_t *hwif) 178static u8 amd_cable_detect(ide_hwif_t *hwif)
@@ -183,14 +183,6 @@ static u8 amd_cable_detect(ide_hwif_t *hwif)
183 return ATA_CBL_PATA40; 183 return ATA_CBL_PATA40;
184} 184}
185 185
186static void __devinit init_hwif_amd74xx(ide_hwif_t *hwif)
187{
188 struct pci_dev *dev = to_pci_dev(hwif->dev);
189
190 if (hwif->irq == 0) /* 0 is bogus but will do for now */
191 hwif->irq = pci_get_legacy_ide_irq(dev, hwif->channel);
192}
193
194static const struct ide_port_ops amd_port_ops = { 186static const struct ide_port_ops amd_port_ops = {
195 .set_pio_mode = amd_set_pio_mode, 187 .set_pio_mode = amd_set_pio_mode,
196 .set_dma_mode = amd_set_drive, 188 .set_dma_mode = amd_set_drive,
@@ -207,7 +199,6 @@ static const struct ide_port_ops amd_port_ops = {
207 { \ 199 { \
208 .name = DRV_NAME, \ 200 .name = DRV_NAME, \
209 .init_chipset = init_chipset_amd74xx, \ 201 .init_chipset = init_chipset_amd74xx, \
210 .init_hwif = init_hwif_amd74xx, \
211 .enablebits = {{0x40,0x02,0x02}, {0x40,0x01,0x01}}, \ 202 .enablebits = {{0x40,0x02,0x02}, {0x40,0x01,0x01}}, \
212 .port_ops = &amd_port_ops, \ 203 .port_ops = &amd_port_ops, \
213 .host_flags = IDE_HFLAGS_AMD, \ 204 .host_flags = IDE_HFLAGS_AMD, \
@@ -221,7 +212,6 @@ static const struct ide_port_ops amd_port_ops = {
221 { \ 212 { \
222 .name = DRV_NAME, \ 213 .name = DRV_NAME, \
223 .init_chipset = init_chipset_amd74xx, \ 214 .init_chipset = init_chipset_amd74xx, \
224 .init_hwif = init_hwif_amd74xx, \
225 .enablebits = {{0x50,0x02,0x02}, {0x50,0x01,0x01}}, \ 215 .enablebits = {{0x50,0x02,0x02}, {0x50,0x01,0x01}}, \
226 .port_ops = &amd_port_ops, \ 216 .port_ops = &amd_port_ops, \
227 .host_flags = IDE_HFLAGS_AMD, \ 217 .host_flags = IDE_HFLAGS_AMD, \
diff --git a/drivers/ide/atiixp.c b/drivers/ide/atiixp.c
index ecd1e62ca91a..923cbfe259d3 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 = {
142 .name = DRV_NAME, 142 .name = DRV_NAME,
143 .enablebits = {{0x48,0x01,0x00}, {0x48,0x08,0x00}}, 143 .enablebits = {{0x48,0x01,0x00}, {0x48,0x08,0x00}},
144 .port_ops = &atiixp_port_ops, 144 .port_ops = &atiixp_port_ops,
145 .host_flags = IDE_HFLAG_LEGACY_IRQS,
146 .pio_mask = ATA_PIO4, 145 .pio_mask = ATA_PIO4,
147 .mwdma_mask = ATA_MWDMA2, 146 .mwdma_mask = ATA_MWDMA2,
148 .udma_mask = ATA_UDMA5, 147 .udma_mask = ATA_UDMA5,
@@ -151,7 +150,7 @@ static const struct ide_port_info atiixp_pci_info[] __devinitdata = {
151 .name = DRV_NAME, 150 .name = DRV_NAME,
152 .enablebits = {{0x48,0x01,0x00}, {0x00,0x00,0x00}}, 151 .enablebits = {{0x48,0x01,0x00}, {0x00,0x00,0x00}},
153 .port_ops = &atiixp_port_ops, 152 .port_ops = &atiixp_port_ops,
154 .host_flags = IDE_HFLAG_SINGLE | IDE_HFLAG_LEGACY_IRQS, 153 .host_flags = IDE_HFLAG_SINGLE,
155 .pio_mask = ATA_PIO4, 154 .pio_mask = ATA_PIO4,
156 .mwdma_mask = ATA_MWDMA2, 155 .mwdma_mask = ATA_MWDMA2,
157 .udma_mask = ATA_UDMA5, 156 .udma_mask = ATA_UDMA5,
diff --git a/drivers/ide/cmd64x.c b/drivers/ide/cmd64x.c
index 2f9688d87ecd..aeee036b1503 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)
333 return (dma_stat & 7) != 4; 333 return (dma_stat & 7) != 4;
334} 334}
335 335
336static unsigned int init_chipset_cmd64x(struct pci_dev *dev) 336static int init_chipset_cmd64x(struct pci_dev *dev)
337{ 337{
338 u8 mrdmode = 0; 338 u8 mrdmode = 0;
339 339
diff --git a/drivers/ide/cs5520.c b/drivers/ide/cs5520.c
index d003bec56ff9..58fb90e5b763 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
133 * do all the device setup for us 133 * do all the device setup for us
134 */ 134 */
135 135
136 ide_pci_setup_ports(dev, d, 14, &hw[0], &hws[0]); 136 ide_pci_setup_ports(dev, d, &hw[0], &hws[0]);
137 hw[0].irq = 14;
137 138
138 return ide_host_add(d, hws, NULL); 139 return ide_host_add(d, hws, NULL);
139} 140}
diff --git a/drivers/ide/cs5530.c b/drivers/ide/cs5530.c
index d8ede85fe17f..8e8b35a89901 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)
135 * Initialize the cs5530 bridge for reliable IDE DMA operation. 135 * Initialize the cs5530 bridge for reliable IDE DMA operation.
136 */ 136 */
137 137
138static unsigned int init_chipset_cs5530(struct pci_dev *dev) 138static int init_chipset_cs5530(struct pci_dev *dev)
139{ 139{
140 struct pci_dev *master_0 = NULL, *cs5530_0 = NULL; 140 struct pci_dev *master_0 = NULL, *cs5530_0 = NULL;
141 141
diff --git a/drivers/ide/delkin_cb.c b/drivers/ide/delkin_cb.c
index 8f1b2d9f0513..bacb1194c9c9 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 = {
46 .quirkproc = ide_undecoded_slave, 46 .quirkproc = ide_undecoded_slave,
47}; 47};
48 48
49static unsigned int delkin_cb_init_chipset(struct pci_dev *dev) 49static int delkin_cb_init_chipset(struct pci_dev *dev)
50{ 50{
51 unsigned long base = pci_resource_start(dev, 0); 51 unsigned long base = pci_resource_start(dev, 0);
52 int i; 52 int i;
diff --git a/drivers/ide/hpt366.c b/drivers/ide/hpt366.c
index 3eb9b5c63a0f..d3b3e824f445 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)
995 pci_write_config_byte(dev, mcr_addr + 1, new_mcr); 995 pci_write_config_byte(dev, mcr_addr + 1, new_mcr);
996} 996}
997 997
998static unsigned int init_chipset_hpt366(struct pci_dev *dev) 998static int init_chipset_hpt366(struct pci_dev *dev)
999{ 999{
1000 unsigned long io_base = pci_resource_start(dev, 4); 1000 unsigned long io_base = pci_resource_start(dev, 4);
1001 struct hpt_info *info = hpt3xx_get_info(&dev->dev); 1001 struct hpt_info *info = hpt3xx_get_info(&dev->dev);
@@ -1237,7 +1237,7 @@ static unsigned int init_chipset_hpt366(struct pci_dev *dev)
1237 hpt3xx_disable_fast_irq(dev, 0x50); 1237 hpt3xx_disable_fast_irq(dev, 0x50);
1238 hpt3xx_disable_fast_irq(dev, 0x54); 1238 hpt3xx_disable_fast_irq(dev, 0x54);
1239 1239
1240 return dev->irq; 1240 return 0;
1241} 1241}
1242 1242
1243static u8 hpt3xx_cable_detect(ide_hwif_t *hwif) 1243static u8 hpt3xx_cable_detect(ide_hwif_t *hwif)
diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c
index ec7d07fa570a..5b704f1ea90c 100644
--- a/drivers/ide/ide-acpi.c
+++ b/drivers/ide/ide-acpi.c
@@ -20,9 +20,6 @@
20#include <acpi/acpi_bus.h> 20#include <acpi/acpi_bus.h>
21 21
22#define REGS_PER_GTF 7 22#define REGS_PER_GTF 7
23struct taskfile_array {
24 u8 tfa[REGS_PER_GTF]; /* regs. 0x1f1 - 0x1f7 */
25};
26 23
27struct GTM_buffer { 24struct GTM_buffer {
28 u32 PIO_speed0; 25 u32 PIO_speed0;
@@ -89,12 +86,8 @@ static const struct dmi_system_id ide_acpi_dmi_table[] = {
89 { } /* terminate list */ 86 { } /* terminate list */
90}; 87};
91 88
92static int ide_acpi_blacklist(void) 89int ide_acpi_init(void)
93{ 90{
94 static int done;
95 if (done)
96 return 0;
97 done = 1;
98 dmi_check_system(ide_acpi_dmi_table); 91 dmi_check_system(ide_acpi_dmi_table);
99 return 0; 92 return 0;
100} 93}
@@ -202,40 +195,6 @@ static acpi_handle ide_acpi_hwif_get_handle(ide_hwif_t *hwif)
202} 195}
203 196
204/** 197/**
205 * ide_acpi_drive_get_handle - Get ACPI object handle for a given drive
206 * @drive: device to locate
207 *
208 * Retrieves the object handle of a given drive. According to the ACPI
209 * spec the drive is a child of the hwif.
210 *
211 * Returns handle on success, 0 on error.
212 */
213static acpi_handle ide_acpi_drive_get_handle(ide_drive_t *drive)
214{
215 ide_hwif_t *hwif = drive->hwif;
216 int port;
217 acpi_handle drive_handle;
218
219 if (!hwif->acpidata)
220 return NULL;
221
222 if (!hwif->acpidata->obj_handle)
223 return NULL;
224
225 port = hwif->channel ? drive->dn - 2: drive->dn;
226
227 DEBPRINT("ENTER: %s at channel#: %d port#: %d\n",
228 drive->name, hwif->channel, port);
229
230
231 /* TBD: could also check ACPI object VALID bits */
232 drive_handle = acpi_get_child(hwif->acpidata->obj_handle, port);
233 DEBPRINT("drive %s handle 0x%p\n", drive->name, drive_handle);
234
235 return drive_handle;
236}
237
238/**
239 * do_drive_get_GTF - get the drive bootup default taskfile settings 198 * do_drive_get_GTF - get the drive bootup default taskfile settings
240 * @drive: the drive for which the taskfile settings should be retrieved 199 * @drive: the drive for which the taskfile settings should be retrieved
241 * @gtf_length: number of bytes of _GTF data returned at @gtf_address 200 * @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,
257 acpi_status status; 216 acpi_status status;
258 struct acpi_buffer output; 217 struct acpi_buffer output;
259 union acpi_object *out_obj; 218 union acpi_object *out_obj;
260 ide_hwif_t *hwif = drive->hwif;
261 struct device *dev = hwif->gendev.parent;
262 int err = -ENODEV; 219 int err = -ENODEV;
263 int port;
264 220
265 *gtf_length = 0; 221 *gtf_length = 0;
266 *gtf_address = 0UL; 222 *gtf_address = 0UL;
267 *obj_loc = 0UL; 223 *obj_loc = 0UL;
268 224
269 if (ide_noacpi)
270 return 0;
271
272 if (!dev) {
273 DEBPRINT("no PCI device for %s\n", hwif->name);
274 goto out;
275 }
276
277 if (!hwif->acpidata) {
278 DEBPRINT("no ACPI data for %s\n", hwif->name);
279 goto out;
280 }
281
282 port = hwif->channel ? drive->dn - 2: drive->dn;
283
284 DEBPRINT("ENTER: %s at %s, port#: %d, hard_port#: %d\n",
285 hwif->name, dev_name(dev), port, hwif->channel);
286
287 if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0) {
288 DEBPRINT("%s drive %d:%d not present\n",
289 hwif->name, hwif->channel, port);
290 goto out;
291 }
292
293 /* Get this drive's _ADR info. if not already known. */
294 if (!drive->acpidata->obj_handle) { 225 if (!drive->acpidata->obj_handle) {
295 drive->acpidata->obj_handle = ide_acpi_drive_get_handle(drive); 226 DEBPRINT("No ACPI object found for %s\n", drive->name);
296 if (!drive->acpidata->obj_handle) { 227 goto out;
297 DEBPRINT("No ACPI object found for %s\n",
298 drive->name);
299 goto out;
300 }
301 } 228 }
302 229
303 /* Setting up output buffer */ 230 /* Setting up output buffer */
@@ -355,43 +282,6 @@ out:
355} 282}
356 283
357/** 284/**
358 * taskfile_load_raw - send taskfile registers to drive
359 * @drive: drive to which output is sent
360 * @gtf: raw ATA taskfile register set (0x1f1 - 0x1f7)
361 *
362 * Outputs IDE taskfile to the drive.
363 */
364static int taskfile_load_raw(ide_drive_t *drive,
365 const struct taskfile_array *gtf)
366{
367 ide_task_t args;
368 int err = 0;
369
370 DEBPRINT("(0x1f1-1f7): hex: "
371 "%02x %02x %02x %02x %02x %02x %02x\n",
372 gtf->tfa[0], gtf->tfa[1], gtf->tfa[2],
373 gtf->tfa[3], gtf->tfa[4], gtf->tfa[5], gtf->tfa[6]);
374
375 memset(&args, 0, sizeof(ide_task_t));
376
377 /* convert gtf to IDE Taskfile */
378 memcpy(&args.tf_array[7], &gtf->tfa, 7);
379 args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
380
381 if (!ide_acpigtf) {
382 DEBPRINT("_GTF execution disabled\n");
383 return err;
384 }
385
386 err = ide_no_data_taskfile(drive, &args);
387 if (err)
388 printk(KERN_ERR "%s: ide_no_data_taskfile failed: %u\n",
389 __func__, err);
390
391 return err;
392}
393
394/**
395 * do_drive_set_taskfiles - write the drive taskfile settings from _GTF 285 * do_drive_set_taskfiles - write the drive taskfile settings from _GTF
396 * @drive: the drive to which the taskfile command should be sent 286 * @drive: the drive to which the taskfile command should be sent
397 * @gtf_length: total number of bytes of _GTF taskfiles 287 * @gtf_length: total number of bytes of _GTF taskfiles
@@ -404,43 +294,41 @@ static int do_drive_set_taskfiles(ide_drive_t *drive,
404 unsigned int gtf_length, 294 unsigned int gtf_length,
405 unsigned long gtf_address) 295 unsigned long gtf_address)
406{ 296{
407 int rc = -ENODEV, err; 297 int rc = 0, err;
408 int gtf_count = gtf_length / REGS_PER_GTF; 298 int gtf_count = gtf_length / REGS_PER_GTF;
409 int ix; 299 int ix;
410 struct taskfile_array *gtf;
411
412 if (ide_noacpi)
413 return 0;
414
415 DEBPRINT("ENTER: %s, hard_port#: %d\n", drive->name, drive->dn);
416
417 if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
418 goto out;
419
420 if (!gtf_count) /* shouldn't be here */
421 goto out;
422 300
423 DEBPRINT("total GTF bytes=%u (0x%x), gtf_count=%d, addr=0x%lx\n", 301 DEBPRINT("total GTF bytes=%u (0x%x), gtf_count=%d, addr=0x%lx\n",
424 gtf_length, gtf_length, gtf_count, gtf_address); 302 gtf_length, gtf_length, gtf_count, gtf_address);
425 303
426 if (gtf_length % REGS_PER_GTF) { 304 /* send all taskfile registers (0x1f1-0x1f7) *in*that*order* */
427 printk(KERN_ERR "%s: unexpected GTF length (%d)\n",
428 __func__, gtf_length);
429 goto out;
430 }
431
432 rc = 0;
433 for (ix = 0; ix < gtf_count; ix++) { 305 for (ix = 0; ix < gtf_count; ix++) {
434 gtf = (struct taskfile_array *) 306 u8 *gtf = (u8 *)(gtf_address + ix * REGS_PER_GTF);
435 (gtf_address + ix * REGS_PER_GTF); 307 ide_task_t task;
436 308
437 /* send all TaskFile registers (0x1f1-0x1f7) *in*that*order* */ 309 DEBPRINT("(0x1f1-1f7): "
438 err = taskfile_load_raw(drive, gtf); 310 "hex: %02x %02x %02x %02x %02x %02x %02x\n",
439 if (err) 311 gtf[0], gtf[1], gtf[2],
312 gtf[3], gtf[4], gtf[5], gtf[6]);
313
314 if (!ide_acpigtf) {
315 DEBPRINT("_GTF execution disabled\n");
316 continue;
317 }
318
319 /* convert GTF to taskfile */
320 memset(&task, 0, sizeof(ide_task_t));
321 memcpy(&task.tf_array[7], gtf, REGS_PER_GTF);
322 task.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
323
324 err = ide_no_data_taskfile(drive, &task);
325 if (err) {
326 printk(KERN_ERR "%s: ide_no_data_taskfile failed: %u\n",
327 __func__, err);
440 rc = err; 328 rc = err;
329 }
441 } 330 }
442 331
443out:
444 return rc; 332 return rc;
445} 333}
446 334
@@ -647,26 +535,23 @@ void ide_acpi_set_state(ide_hwif_t *hwif, int on)
647 DEBPRINT("no ACPI data for %s\n", hwif->name); 535 DEBPRINT("no ACPI data for %s\n", hwif->name);
648 return; 536 return;
649 } 537 }
538
650 /* channel first and then drives for power on and verse versa for power off */ 539 /* channel first and then drives for power on and verse versa for power off */
651 if (on) 540 if (on)
652 acpi_bus_set_power(hwif->acpidata->obj_handle, ACPI_STATE_D0); 541 acpi_bus_set_power(hwif->acpidata->obj_handle, ACPI_STATE_D0);
653 542
654 ide_port_for_each_dev(i, drive, hwif) { 543 ide_port_for_each_present_dev(i, drive, hwif) {
655 if (!drive->acpidata->obj_handle) 544 if (drive->acpidata->obj_handle)
656 drive->acpidata->obj_handle = ide_acpi_drive_get_handle(drive);
657
658 if (drive->acpidata->obj_handle &&
659 (drive->dev_flags & IDE_DFLAG_PRESENT)) {
660 acpi_bus_set_power(drive->acpidata->obj_handle, 545 acpi_bus_set_power(drive->acpidata->obj_handle,
661 on? ACPI_STATE_D0: ACPI_STATE_D3); 546 on ? ACPI_STATE_D0 : ACPI_STATE_D3);
662 }
663 } 547 }
548
664 if (!on) 549 if (!on)
665 acpi_bus_set_power(hwif->acpidata->obj_handle, ACPI_STATE_D3); 550 acpi_bus_set_power(hwif->acpidata->obj_handle, ACPI_STATE_D3);
666} 551}
667 552
668/** 553/**
669 * ide_acpi_init - initialize the ACPI link for an IDE interface 554 * ide_acpi_init_port - initialize the ACPI link for an IDE interface
670 * @hwif: target IDE interface (channel) 555 * @hwif: target IDE interface (channel)
671 * 556 *
672 * The ACPI spec is not quite clear when the drive identify buffer 557 * 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)
676 * So we get the information during startup; but this means that 561 * So we get the information during startup; but this means that
677 * any changes during run-time will be lost after resume. 562 * any changes during run-time will be lost after resume.
678 */ 563 */
679void ide_acpi_init(ide_hwif_t *hwif) 564void ide_acpi_init_port(ide_hwif_t *hwif)
680{ 565{
681 ide_acpi_blacklist();
682
683 hwif->acpidata = kzalloc(sizeof(struct ide_acpi_hwif_link), GFP_KERNEL); 566 hwif->acpidata = kzalloc(sizeof(struct ide_acpi_hwif_link), GFP_KERNEL);
684 if (!hwif->acpidata) 567 if (!hwif->acpidata)
685 return; 568 return;
@@ -708,15 +591,24 @@ void ide_acpi_port_init_devices(ide_hwif_t *hwif)
708 hwif->devices[0]->acpidata = &hwif->acpidata->master; 591 hwif->devices[0]->acpidata = &hwif->acpidata->master;
709 hwif->devices[1]->acpidata = &hwif->acpidata->slave; 592 hwif->devices[1]->acpidata = &hwif->acpidata->slave;
710 593
711 /* 594 /* get _ADR info for each device */
712 * Send IDENTIFY for each drive 595 ide_port_for_each_present_dev(i, drive, hwif) {
713 */ 596 acpi_handle dev_handle;
714 ide_port_for_each_dev(i, drive, hwif) {
715 memset(drive->acpidata, 0, sizeof(*drive->acpidata));
716 597
717 if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0) 598 DEBPRINT("ENTER: %s at channel#: %d port#: %d\n",
718 continue; 599 drive->name, hwif->channel, drive->dn & 1);
600
601 /* TBD: could also check ACPI object VALID bits */
602 dev_handle = acpi_get_child(hwif->acpidata->obj_handle,
603 drive->dn & 1);
604
605 DEBPRINT("drive %s handle 0x%p\n", drive->name, dev_handle);
606
607 drive->acpidata->obj_handle = dev_handle;
608 }
719 609
610 /* send IDENTIFY for each device */
611 ide_port_for_each_present_dev(i, drive, hwif) {
720 err = taskfile_lib_get_identify(drive, drive->acpidata->idbuff); 612 err = taskfile_lib_get_identify(drive, drive->acpidata->idbuff);
721 if (err) 613 if (err)
722 DEBPRINT("identify device %s failed (%d)\n", 614 DEBPRINT("identify device %s failed (%d)\n",
@@ -736,9 +628,7 @@ void ide_acpi_port_init_devices(ide_hwif_t *hwif)
736 ide_acpi_get_timing(hwif); 628 ide_acpi_get_timing(hwif);
737 ide_acpi_push_timing(hwif); 629 ide_acpi_push_timing(hwif);
738 630
739 ide_port_for_each_dev(i, drive, hwif) { 631 ide_port_for_each_present_dev(i, drive, hwif) {
740 if (drive->dev_flags & IDE_DFLAG_PRESENT) 632 ide_acpi_exec_tfs(drive);
741 /* Execute ACPI startup code */
742 ide_acpi_exec_tfs(drive);
743 } 633 }
744} 634}
diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index e9d042dba0e0..6adc5b4a4406 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,
149 memcpy(rq->cmd, pc->c, 12); 149 memcpy(rq->cmd, pc->c, 12);
150 if (drive->media == ide_tape) 150 if (drive->media == ide_tape)
151 rq->cmd[13] = REQ_IDETAPE_PC1; 151 rq->cmd[13] = REQ_IDETAPE_PC1;
152 ide_do_drive_cmd(drive, rq); 152
153 drive->hwif->rq = NULL;
154
155 elv_add_request(drive->queue, rq, ELEVATOR_INSERT_FRONT, 0);
153} 156}
154 157
155/* 158/*
@@ -297,6 +300,21 @@ int ide_cd_get_xferlen(struct request *rq)
297} 300}
298EXPORT_SYMBOL_GPL(ide_cd_get_xferlen); 301EXPORT_SYMBOL_GPL(ide_cd_get_xferlen);
299 302
303void ide_read_bcount_and_ireason(ide_drive_t *drive, u16 *bcount, u8 *ireason)
304{
305 ide_task_t task;
306
307 memset(&task, 0, sizeof(task));
308 task.tf_flags = IDE_TFLAG_IN_LBAH | IDE_TFLAG_IN_LBAM |
309 IDE_TFLAG_IN_NSECT;
310
311 drive->hwif->tp_ops->tf_read(drive, &task);
312
313 *bcount = (task.tf.lbah << 8) | task.tf.lbam;
314 *ireason = task.tf.nsect & 3;
315}
316EXPORT_SYMBOL_GPL(ide_read_bcount_and_ireason);
317
300/* 318/*
301 * This is the usual interrupt handler which will be called during a packet 319 * This is the usual interrupt handler which will be called during a packet
302 * command. We will transfer some of the data (as requested by the drive) 320 * command. We will transfer some of the data (as requested by the drive)
@@ -456,6 +474,25 @@ next_irq:
456 return ide_started; 474 return ide_started;
457} 475}
458 476
477static void ide_pktcmd_tf_load(ide_drive_t *drive, u32 tf_flags, u16 bcount)
478{
479 ide_hwif_t *hwif = drive->hwif;
480 ide_task_t task;
481 u8 dma = drive->dma;
482
483 memset(&task, 0, sizeof(task));
484 task.tf_flags = IDE_TFLAG_OUT_LBAH | IDE_TFLAG_OUT_LBAM |
485 IDE_TFLAG_OUT_FEATURE | tf_flags;
486 task.tf.feature = dma; /* Use PIO/DMA */
487 task.tf.lbam = bcount & 0xff;
488 task.tf.lbah = (bcount >> 8) & 0xff;
489
490 ide_tf_dump(drive->name, &task.tf);
491 hwif->tp_ops->set_irq(hwif, 1);
492 SELECT_MASK(drive, 0);
493 hwif->tp_ops->tf_load(drive, &task);
494}
495
459static u8 ide_read_ireason(ide_drive_t *drive) 496static u8 ide_read_ireason(ide_drive_t *drive)
460{ 497{
461 ide_task_t task; 498 ide_task_t task;
@@ -629,7 +666,7 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive)
629 : WAIT_TAPE_CMD; 666 : WAIT_TAPE_CMD;
630 } 667 }
631 668
632 ide_pktcmd_tf_load(drive, tf_flags, bcount, drive->dma); 669 ide_pktcmd_tf_load(drive, tf_flags, bcount);
633 670
634 /* Issue the packet command */ 671 /* Issue the packet command */
635 if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) { 672 if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) {
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index ddfbea41d296..2177cd11664c 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,
242 ide_debug_log(IDE_DBG_SENSE, "failed_cmd: 0x%x\n", 242 ide_debug_log(IDE_DBG_SENSE, "failed_cmd: 0x%x\n",
243 failed_command->cmd[0]); 243 failed_command->cmd[0]);
244 244
245 ide_do_drive_cmd(drive, rq); 245 drive->hwif->rq = NULL;
246
247 elv_add_request(drive->queue, rq, ELEVATOR_INSERT_FRONT, 0);
246} 248}
247 249
248static void cdrom_end_request(ide_drive_t *drive, int uptodate) 250static 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 000000000000..7c3953414d47
--- /dev/null
+++ b/drivers/ide/ide-devsets.c
@@ -0,0 +1,190 @@
1
2#include <linux/kernel.h>
3#include <linux/ide.h>
4
5DEFINE_MUTEX(ide_setting_mtx);
6
7ide_devset_get(io_32bit, io_32bit);
8
9static int set_io_32bit(ide_drive_t *drive, int arg)
10{
11 if (drive->dev_flags & IDE_DFLAG_NO_IO_32BIT)
12 return -EPERM;
13
14 if (arg < 0 || arg > 1 + (SUPPORT_VLB_SYNC << 1))
15 return -EINVAL;
16
17 drive->io_32bit = arg;
18
19 return 0;
20}
21
22ide_devset_get_flag(ksettings, IDE_DFLAG_KEEP_SETTINGS);
23
24static int set_ksettings(ide_drive_t *drive, int arg)
25{
26 if (arg < 0 || arg > 1)
27 return -EINVAL;
28
29 if (arg)
30 drive->dev_flags |= IDE_DFLAG_KEEP_SETTINGS;
31 else
32 drive->dev_flags &= ~IDE_DFLAG_KEEP_SETTINGS;
33
34 return 0;
35}
36
37ide_devset_get_flag(using_dma, IDE_DFLAG_USING_DMA);
38
39static int set_using_dma(ide_drive_t *drive, int arg)
40{
41#ifdef CONFIG_BLK_DEV_IDEDMA
42 int err = -EPERM;
43
44 if (arg < 0 || arg > 1)
45 return -EINVAL;
46
47 if (ata_id_has_dma(drive->id) == 0)
48 goto out;
49
50 if (drive->hwif->dma_ops == NULL)
51 goto out;
52
53 err = 0;
54
55 if (arg) {
56 if (ide_set_dma(drive))
57 err = -EIO;
58 } else
59 ide_dma_off(drive);
60
61out:
62 return err;
63#else
64 if (arg < 0 || arg > 1)
65 return -EINVAL;
66
67 return -EPERM;
68#endif
69}
70
71/*
72 * handle HDIO_SET_PIO_MODE ioctl abusers here, eventually it will go away
73 */
74static int set_pio_mode_abuse(ide_hwif_t *hwif, u8 req_pio)
75{
76 switch (req_pio) {
77 case 202:
78 case 201:
79 case 200:
80 case 102:
81 case 101:
82 case 100:
83 return (hwif->host_flags & IDE_HFLAG_ABUSE_DMA_MODES) ? 1 : 0;
84 case 9:
85 case 8:
86 return (hwif->host_flags & IDE_HFLAG_ABUSE_PREFETCH) ? 1 : 0;
87 case 7:
88 case 6:
89 return (hwif->host_flags & IDE_HFLAG_ABUSE_FAST_DEVSEL) ? 1 : 0;
90 default:
91 return 0;
92 }
93}
94
95static int set_pio_mode(ide_drive_t *drive, int arg)
96{
97 ide_hwif_t *hwif = drive->hwif;
98 const struct ide_port_ops *port_ops = hwif->port_ops;
99
100 if (arg < 0 || arg > 255)
101 return -EINVAL;
102
103 if (port_ops == NULL || port_ops->set_pio_mode == NULL ||
104 (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
105 return -ENOSYS;
106
107 if (set_pio_mode_abuse(drive->hwif, arg)) {
108 if (arg == 8 || arg == 9) {
109 unsigned long flags;
110
111 /* take lock for IDE_DFLAG_[NO_]UNMASK/[NO_]IO_32BIT */
112 spin_lock_irqsave(&hwif->lock, flags);
113 port_ops->set_pio_mode(drive, arg);
114 spin_unlock_irqrestore(&hwif->lock, flags);
115 } else
116 port_ops->set_pio_mode(drive, arg);
117 } else {
118 int keep_dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
119
120 ide_set_pio(drive, arg);
121
122 if (hwif->host_flags & IDE_HFLAG_SET_PIO_MODE_KEEP_DMA) {
123 if (keep_dma)
124 ide_dma_on(drive);
125 }
126 }
127
128 return 0;
129}
130
131ide_devset_get_flag(unmaskirq, IDE_DFLAG_UNMASK);
132
133static int set_unmaskirq(ide_drive_t *drive, int arg)
134{
135 if (drive->dev_flags & IDE_DFLAG_NO_UNMASK)
136 return -EPERM;
137
138 if (arg < 0 || arg > 1)
139 return -EINVAL;
140
141 if (arg)
142 drive->dev_flags |= IDE_DFLAG_UNMASK;
143 else
144 drive->dev_flags &= ~IDE_DFLAG_UNMASK;
145
146 return 0;
147}
148
149ide_ext_devset_rw_sync(io_32bit, io_32bit);
150ide_ext_devset_rw_sync(keepsettings, ksettings);
151ide_ext_devset_rw_sync(unmaskirq, unmaskirq);
152ide_ext_devset_rw_sync(using_dma, using_dma);
153__IDE_DEVSET(pio_mode, DS_SYNC, NULL, set_pio_mode);
154
155int ide_devset_execute(ide_drive_t *drive, const struct ide_devset *setting,
156 int arg)
157{
158 struct request_queue *q = drive->queue;
159 struct request *rq;
160 int ret = 0;
161
162 if (!(setting->flags & DS_SYNC))
163 return setting->set(drive, arg);
164
165 rq = blk_get_request(q, READ, __GFP_WAIT);
166 rq->cmd_type = REQ_TYPE_SPECIAL;
167 rq->cmd_len = 5;
168 rq->cmd[0] = REQ_DEVSET_EXEC;
169 *(int *)&rq->cmd[1] = arg;
170 rq->special = setting->set;
171
172 if (blk_execute_rq(q, NULL, rq, 0))
173 ret = rq->errors;
174 blk_put_request(rq);
175
176 return ret;
177}
178
179ide_startstop_t ide_do_devset(ide_drive_t *drive, struct request *rq)
180{
181 int err, (*setfunc)(ide_drive_t *, int) = rq->special;
182
183 err = setfunc(drive, *(int *)&rq->cmd[1]);
184 if (err)
185 rq->errors = err;
186 else
187 err = 1;
188 ide_end_request(drive, err, 0);
189 return ide_stopped;
190}
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 059c90bb5ad2..a878f4734f81 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)
470} 470}
471EXPORT_SYMBOL_GPL(ide_dma_timeout); 471EXPORT_SYMBOL_GPL(ide_dma_timeout);
472 472
473/*
474 * un-busy the port etc, and clear any pending DMA status. we want to
475 * retry the current request in pio mode instead of risking tossing it
476 * all away
477 */
478ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error)
479{
480 ide_hwif_t *hwif = drive->hwif;
481 struct request *rq;
482 ide_startstop_t ret = ide_stopped;
483
484 /*
485 * end current dma transaction
486 */
487
488 if (error < 0) {
489 printk(KERN_WARNING "%s: DMA timeout error\n", drive->name);
490 (void)hwif->dma_ops->dma_end(drive);
491 ret = ide_error(drive, "dma timeout error",
492 hwif->tp_ops->read_status(hwif));
493 } else {
494 printk(KERN_WARNING "%s: DMA timeout retry\n", drive->name);
495 hwif->dma_ops->dma_timeout(drive);
496 }
497
498 /*
499 * disable dma for now, but remember that we did so because of
500 * a timeout -- we'll reenable after we finish this next request
501 * (or rather the first chunk of it) in pio.
502 */
503 drive->dev_flags |= IDE_DFLAG_DMA_PIO_RETRY;
504 drive->retry_pio++;
505 ide_dma_off_quietly(drive);
506
507 /*
508 * un-busy drive etc and make sure request is sane
509 */
510
511 rq = hwif->rq;
512 if (!rq)
513 goto out;
514
515 hwif->rq = NULL;
516
517 rq->errors = 0;
518
519 if (!rq->bio)
520 goto out;
521
522 rq->sector = rq->bio->bi_sector;
523 rq->current_nr_sectors = bio_iovec(rq->bio)->bv_len >> 9;
524 rq->hard_cur_sectors = rq->current_nr_sectors;
525 rq->buffer = bio_data(rq->bio);
526out:
527 return ret;
528}
529
473void ide_release_dma_engine(ide_hwif_t *hwif) 530void ide_release_dma_engine(ide_hwif_t *hwif)
474{ 531{
475 if (hwif->dmatable_cpu) { 532 if (hwif->dmatable_cpu) {
diff --git a/drivers/ide/ide-eh.c b/drivers/ide/ide-eh.c
new file mode 100644
index 000000000000..1231b5e486f2
--- /dev/null
+++ b/drivers/ide/ide-eh.c
@@ -0,0 +1,428 @@
1
2#include <linux/kernel.h>
3#include <linux/ide.h>
4#include <linux/delay.h>
5
6static ide_startstop_t ide_ata_error(ide_drive_t *drive, struct request *rq,
7 u8 stat, u8 err)
8{
9 ide_hwif_t *hwif = drive->hwif;
10
11 if ((stat & ATA_BUSY) ||
12 ((stat & ATA_DF) && (drive->dev_flags & IDE_DFLAG_NOWERR) == 0)) {
13 /* other bits are useless when BUSY */
14 rq->errors |= ERROR_RESET;
15 } else if (stat & ATA_ERR) {
16 /* err has different meaning on cdrom and tape */
17 if (err == ATA_ABORTED) {
18 if ((drive->dev_flags & IDE_DFLAG_LBA) &&
19 /* some newer drives don't support ATA_CMD_INIT_DEV_PARAMS */
20 hwif->tp_ops->read_status(hwif) == ATA_CMD_INIT_DEV_PARAMS)
21 return ide_stopped;
22 } else if ((err & BAD_CRC) == BAD_CRC) {
23 /* UDMA crc error, just retry the operation */
24 drive->crc_count++;
25 } else if (err & (ATA_BBK | ATA_UNC)) {
26 /* retries won't help these */
27 rq->errors = ERROR_MAX;
28 } else if (err & ATA_TRK0NF) {
29 /* help it find track zero */
30 rq->errors |= ERROR_RECAL;
31 }
32 }
33
34 if ((stat & ATA_DRQ) && rq_data_dir(rq) == READ &&
35 (hwif->host_flags & IDE_HFLAG_ERROR_STOPS_FIFO) == 0) {
36 int nsect = drive->mult_count ? drive->mult_count : 1;
37
38 ide_pad_transfer(drive, READ, nsect * SECTOR_SIZE);
39 }
40
41 if (rq->errors >= ERROR_MAX || blk_noretry_request(rq)) {
42 ide_kill_rq(drive, rq);
43 return ide_stopped;
44 }
45
46 if (hwif->tp_ops->read_status(hwif) & (ATA_BUSY | ATA_DRQ))
47 rq->errors |= ERROR_RESET;
48
49 if ((rq->errors & ERROR_RESET) == ERROR_RESET) {
50 ++rq->errors;
51 return ide_do_reset(drive);
52 }
53
54 if ((rq->errors & ERROR_RECAL) == ERROR_RECAL)
55 drive->special.b.recalibrate = 1;
56
57 ++rq->errors;
58
59 return ide_stopped;
60}
61
62static ide_startstop_t ide_atapi_error(ide_drive_t *drive, struct request *rq,
63 u8 stat, u8 err)
64{
65 ide_hwif_t *hwif = drive->hwif;
66
67 if ((stat & ATA_BUSY) ||
68 ((stat & ATA_DF) && (drive->dev_flags & IDE_DFLAG_NOWERR) == 0)) {
69 /* other bits are useless when BUSY */
70 rq->errors |= ERROR_RESET;
71 } else {
72 /* add decoding error stuff */
73 }
74
75 if (hwif->tp_ops->read_status(hwif) & (ATA_BUSY | ATA_DRQ))
76 /* force an abort */
77 hwif->tp_ops->exec_command(hwif, ATA_CMD_IDLEIMMEDIATE);
78
79 if (rq->errors >= ERROR_MAX) {
80 ide_kill_rq(drive, rq);
81 } else {
82 if ((rq->errors & ERROR_RESET) == ERROR_RESET) {
83 ++rq->errors;
84 return ide_do_reset(drive);
85 }
86 ++rq->errors;
87 }
88
89 return ide_stopped;
90}
91
92static ide_startstop_t __ide_error(ide_drive_t *drive, struct request *rq,
93 u8 stat, u8 err)
94{
95 if (drive->media == ide_disk)
96 return ide_ata_error(drive, rq, stat, err);
97 return ide_atapi_error(drive, rq, stat, err);
98}
99
100/**
101 * ide_error - handle an error on the IDE
102 * @drive: drive the error occurred on
103 * @msg: message to report
104 * @stat: status bits
105 *
106 * ide_error() takes action based on the error returned by the drive.
107 * For normal I/O that may well include retries. We deal with
108 * both new-style (taskfile) and old style command handling here.
109 * In the case of taskfile command handling there is work left to
110 * do
111 */
112
113ide_startstop_t ide_error(ide_drive_t *drive, const char *msg, u8 stat)
114{
115 struct request *rq;
116 u8 err;
117
118 err = ide_dump_status(drive, msg, stat);
119
120 rq = drive->hwif->rq;
121 if (rq == NULL)
122 return ide_stopped;
123
124 /* retry only "normal" I/O: */
125 if (!blk_fs_request(rq)) {
126 rq->errors = 1;
127 ide_end_drive_cmd(drive, stat, err);
128 return ide_stopped;
129 }
130
131 return __ide_error(drive, rq, stat, err);
132}
133EXPORT_SYMBOL_GPL(ide_error);
134
135static inline void ide_complete_drive_reset(ide_drive_t *drive, int err)
136{
137 struct request *rq = drive->hwif->rq;
138
139 if (rq && blk_special_request(rq) && rq->cmd[0] == REQ_DRIVE_RESET)
140 ide_end_request(drive, err ? err : 1, 0);
141}
142
143/* needed below */
144static ide_startstop_t do_reset1(ide_drive_t *, int);
145
146/*
147 * atapi_reset_pollfunc() gets invoked to poll the interface for completion
148 * every 50ms during an atapi drive reset operation. If the drive has not yet
149 * responded, and we have not yet hit our maximum waiting time, then the timer
150 * is restarted for another 50ms.
151 */
152static ide_startstop_t atapi_reset_pollfunc(ide_drive_t *drive)
153{
154 ide_hwif_t *hwif = drive->hwif;
155 u8 stat;
156
157 SELECT_DRIVE(drive);
158 udelay(10);
159 stat = hwif->tp_ops->read_status(hwif);
160
161 if (OK_STAT(stat, 0, ATA_BUSY))
162 printk(KERN_INFO "%s: ATAPI reset complete\n", drive->name);
163 else {
164 if (time_before(jiffies, hwif->poll_timeout)) {
165 ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20,
166 NULL);
167 /* continue polling */
168 return ide_started;
169 }
170 /* end of polling */
171 hwif->polling = 0;
172 printk(KERN_ERR "%s: ATAPI reset timed-out, status=0x%02x\n",
173 drive->name, stat);
174 /* do it the old fashioned way */
175 return do_reset1(drive, 1);
176 }
177 /* done polling */
178 hwif->polling = 0;
179 ide_complete_drive_reset(drive, 0);
180 return ide_stopped;
181}
182
183static void ide_reset_report_error(ide_hwif_t *hwif, u8 err)
184{
185 static const char *err_master_vals[] =
186 { NULL, "passed", "formatter device error",
187 "sector buffer error", "ECC circuitry error",
188 "controlling MPU error" };
189
190 u8 err_master = err & 0x7f;
191
192 printk(KERN_ERR "%s: reset: master: ", hwif->name);
193 if (err_master && err_master < 6)
194 printk(KERN_CONT "%s", err_master_vals[err_master]);
195 else
196 printk(KERN_CONT "error (0x%02x?)", err);
197 if (err & 0x80)
198 printk(KERN_CONT "; slave: failed");
199 printk(KERN_CONT "\n");
200}
201
202/*
203 * reset_pollfunc() gets invoked to poll the interface for completion every 50ms
204 * during an ide reset operation. If the drives have not yet responded,
205 * and we have not yet hit our maximum waiting time, then the timer is restarted
206 * for another 50ms.
207 */
208static ide_startstop_t reset_pollfunc(ide_drive_t *drive)
209{
210 ide_hwif_t *hwif = drive->hwif;
211 const struct ide_port_ops *port_ops = hwif->port_ops;
212 u8 tmp;
213 int err = 0;
214
215 if (port_ops && port_ops->reset_poll) {
216 err = port_ops->reset_poll(drive);
217 if (err) {
218 printk(KERN_ERR "%s: host reset_poll failure for %s.\n",
219 hwif->name, drive->name);
220 goto out;
221 }
222 }
223
224 tmp = hwif->tp_ops->read_status(hwif);
225
226 if (!OK_STAT(tmp, 0, ATA_BUSY)) {
227 if (time_before(jiffies, hwif->poll_timeout)) {
228 ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
229 /* continue polling */
230 return ide_started;
231 }
232 printk(KERN_ERR "%s: reset timed-out, status=0x%02x\n",
233 hwif->name, tmp);
234 drive->failures++;
235 err = -EIO;
236 } else {
237 tmp = ide_read_error(drive);
238
239 if (tmp == 1) {
240 printk(KERN_INFO "%s: reset: success\n", hwif->name);
241 drive->failures = 0;
242 } else {
243 ide_reset_report_error(hwif, tmp);
244 drive->failures++;
245 err = -EIO;
246 }
247 }
248out:
249 hwif->polling = 0; /* done polling */
250 ide_complete_drive_reset(drive, err);
251 return ide_stopped;
252}
253
254static void ide_disk_pre_reset(ide_drive_t *drive)
255{
256 int legacy = (drive->id[ATA_ID_CFS_ENABLE_2] & 0x0400) ? 0 : 1;
257
258 drive->special.all = 0;
259 drive->special.b.set_geometry = legacy;
260 drive->special.b.recalibrate = legacy;
261
262 drive->mult_count = 0;
263 drive->dev_flags &= ~IDE_DFLAG_PARKED;
264
265 if ((drive->dev_flags & IDE_DFLAG_KEEP_SETTINGS) == 0 &&
266 (drive->dev_flags & IDE_DFLAG_USING_DMA) == 0)
267 drive->mult_req = 0;
268
269 if (drive->mult_req != drive->mult_count)
270 drive->special.b.set_multmode = 1;
271}
272
273static void pre_reset(ide_drive_t *drive)
274{
275 const struct ide_port_ops *port_ops = drive->hwif->port_ops;
276
277 if (drive->media == ide_disk)
278 ide_disk_pre_reset(drive);
279 else
280 drive->dev_flags |= IDE_DFLAG_POST_RESET;
281
282 if (drive->dev_flags & IDE_DFLAG_USING_DMA) {
283 if (drive->crc_count)
284 ide_check_dma_crc(drive);
285 else
286 ide_dma_off(drive);
287 }
288
289 if ((drive->dev_flags & IDE_DFLAG_KEEP_SETTINGS) == 0) {
290 if ((drive->dev_flags & IDE_DFLAG_USING_DMA) == 0) {
291 drive->dev_flags &= ~IDE_DFLAG_UNMASK;
292 drive->io_32bit = 0;
293 }
294 return;
295 }
296
297 if (port_ops && port_ops->pre_reset)
298 port_ops->pre_reset(drive);
299
300 if (drive->current_speed != 0xff)
301 drive->desired_speed = drive->current_speed;
302 drive->current_speed = 0xff;
303}
304
305/*
306 * do_reset1() attempts to recover a confused drive by resetting it.
307 * Unfortunately, resetting a disk drive actually resets all devices on
308 * the same interface, so it can really be thought of as resetting the
309 * interface rather than resetting the drive.
310 *
311 * ATAPI devices have their own reset mechanism which allows them to be
312 * individually reset without clobbering other devices on the same interface.
313 *
314 * Unfortunately, the IDE interface does not generate an interrupt to let
315 * us know when the reset operation has finished, so we must poll for this.
316 * Equally poor, though, is the fact that this may a very long time to complete,
317 * (up to 30 seconds worstcase). So, instead of busy-waiting here for it,
318 * we set a timer to poll at 50ms intervals.
319 */
320static ide_startstop_t do_reset1(ide_drive_t *drive, int do_not_try_atapi)
321{
322 ide_hwif_t *hwif = drive->hwif;
323 struct ide_io_ports *io_ports = &hwif->io_ports;
324 const struct ide_tp_ops *tp_ops = hwif->tp_ops;
325 const struct ide_port_ops *port_ops;
326 ide_drive_t *tdrive;
327 unsigned long flags, timeout;
328 int i;
329 DEFINE_WAIT(wait);
330
331 spin_lock_irqsave(&hwif->lock, flags);
332
333 /* We must not reset with running handlers */
334 BUG_ON(hwif->handler != NULL);
335
336 /* For an ATAPI device, first try an ATAPI SRST. */
337 if (drive->media != ide_disk && !do_not_try_atapi) {
338 pre_reset(drive);
339 SELECT_DRIVE(drive);
340 udelay(20);
341 tp_ops->exec_command(hwif, ATA_CMD_DEV_RESET);
342 ndelay(400);
343 hwif->poll_timeout = jiffies + WAIT_WORSTCASE;
344 hwif->polling = 1;
345 __ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20, NULL);
346 spin_unlock_irqrestore(&hwif->lock, flags);
347 return ide_started;
348 }
349
350 /* We must not disturb devices in the IDE_DFLAG_PARKED state. */
351 do {
352 unsigned long now;
353
354 prepare_to_wait(&ide_park_wq, &wait, TASK_UNINTERRUPTIBLE);
355 timeout = jiffies;
356 ide_port_for_each_present_dev(i, tdrive, hwif) {
357 if ((tdrive->dev_flags & IDE_DFLAG_PARKED) &&
358 time_after(tdrive->sleep, timeout))
359 timeout = tdrive->sleep;
360 }
361
362 now = jiffies;
363 if (time_before_eq(timeout, now))
364 break;
365
366 spin_unlock_irqrestore(&hwif->lock, flags);
367 timeout = schedule_timeout_uninterruptible(timeout - now);
368 spin_lock_irqsave(&hwif->lock, flags);
369 } while (timeout);
370 finish_wait(&ide_park_wq, &wait);
371
372 /*
373 * First, reset any device state data we were maintaining
374 * for any of the drives on this interface.
375 */
376 ide_port_for_each_dev(i, tdrive, hwif)
377 pre_reset(tdrive);
378
379 if (io_ports->ctl_addr == 0) {
380 spin_unlock_irqrestore(&hwif->lock, flags);
381 ide_complete_drive_reset(drive, -ENXIO);
382 return ide_stopped;
383 }
384
385 /*
386 * Note that we also set nIEN while resetting the device,
387 * to mask unwanted interrupts from the interface during the reset.
388 * However, due to the design of PC hardware, this will cause an
389 * immediate interrupt due to the edge transition it produces.
390 * This single interrupt gives us a "fast poll" for drives that
391 * recover from reset very quickly, saving us the first 50ms wait time.
392 *
393 * TODO: add ->softreset method and stop abusing ->set_irq
394 */
395 /* set SRST and nIEN */
396 tp_ops->set_irq(hwif, 4);
397 /* more than enough time */
398 udelay(10);
399 /* clear SRST, leave nIEN (unless device is on the quirk list) */
400 tp_ops->set_irq(hwif, drive->quirk_list == 2);
401 /* more than enough time */
402 udelay(10);
403 hwif->poll_timeout = jiffies + WAIT_WORSTCASE;
404 hwif->polling = 1;
405 __ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
406
407 /*
408 * Some weird controller like resetting themselves to a strange
409 * state when the disks are reset this way. At least, the Winbond
410 * 553 documentation says that
411 */
412 port_ops = hwif->port_ops;
413 if (port_ops && port_ops->resetproc)
414 port_ops->resetproc(drive);
415
416 spin_unlock_irqrestore(&hwif->lock, flags);
417 return ide_started;
418}
419
420/*
421 * ide_do_reset() is the entry point to the drive/interface reset code.
422 */
423
424ide_startstop_t ide_do_reset(ide_drive_t *drive)
425{
426 return do_reset1(drive, 0);
427}
428EXPORT_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 000000000000..45b43dd49cda
--- /dev/null
+++ b/drivers/ide/ide-io-std.c
@@ -0,0 +1,316 @@
1
2#include <linux/kernel.h>
3#include <linux/ide.h>
4
5/*
6 * Conventional PIO operations for ATA devices
7 */
8
9static u8 ide_inb(unsigned long port)
10{
11 return (u8) inb(port);
12}
13
14static void ide_outb(u8 val, unsigned long port)
15{
16 outb(val, port);
17}
18
19/*
20 * MMIO operations, typically used for SATA controllers
21 */
22
23static u8 ide_mm_inb(unsigned long port)
24{
25 return (u8) readb((void __iomem *) port);
26}
27
28static void ide_mm_outb(u8 value, unsigned long port)
29{
30 writeb(value, (void __iomem *) port);
31}
32
33void ide_exec_command(ide_hwif_t *hwif, u8 cmd)
34{
35 if (hwif->host_flags & IDE_HFLAG_MMIO)
36 writeb(cmd, (void __iomem *)hwif->io_ports.command_addr);
37 else
38 outb(cmd, hwif->io_ports.command_addr);
39}
40EXPORT_SYMBOL_GPL(ide_exec_command);
41
42u8 ide_read_status(ide_hwif_t *hwif)
43{
44 if (hwif->host_flags & IDE_HFLAG_MMIO)
45 return readb((void __iomem *)hwif->io_ports.status_addr);
46 else
47 return inb(hwif->io_ports.status_addr);
48}
49EXPORT_SYMBOL_GPL(ide_read_status);
50
51u8 ide_read_altstatus(ide_hwif_t *hwif)
52{
53 if (hwif->host_flags & IDE_HFLAG_MMIO)
54 return readb((void __iomem *)hwif->io_ports.ctl_addr);
55 else
56 return inb(hwif->io_ports.ctl_addr);
57}
58EXPORT_SYMBOL_GPL(ide_read_altstatus);
59
60void ide_set_irq(ide_hwif_t *hwif, int on)
61{
62 u8 ctl = ATA_DEVCTL_OBS;
63
64 if (on == 4) { /* hack for SRST */
65 ctl |= 4;
66 on &= ~4;
67 }
68
69 ctl |= on ? 0 : 2;
70
71 if (hwif->host_flags & IDE_HFLAG_MMIO)
72 writeb(ctl, (void __iomem *)hwif->io_ports.ctl_addr);
73 else
74 outb(ctl, hwif->io_ports.ctl_addr);
75}
76EXPORT_SYMBOL_GPL(ide_set_irq);
77
78void ide_tf_load(ide_drive_t *drive, ide_task_t *task)
79{
80 ide_hwif_t *hwif = drive->hwif;
81 struct ide_io_ports *io_ports = &hwif->io_ports;
82 struct ide_taskfile *tf = &task->tf;
83 void (*tf_outb)(u8 addr, unsigned long port);
84 u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
85 u8 HIHI = (task->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
86
87 if (mmio)
88 tf_outb = ide_mm_outb;
89 else
90 tf_outb = ide_outb;
91
92 if (task->tf_flags & IDE_TFLAG_FLAGGED)
93 HIHI = 0xFF;
94
95 if (task->tf_flags & IDE_TFLAG_OUT_DATA) {
96 u16 data = (tf->hob_data << 8) | tf->data;
97
98 if (mmio)
99 writew(data, (void __iomem *)io_ports->data_addr);
100 else
101 outw(data, io_ports->data_addr);
102 }
103
104 if (task->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
105 tf_outb(tf->hob_feature, io_ports->feature_addr);
106 if (task->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
107 tf_outb(tf->hob_nsect, io_ports->nsect_addr);
108 if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
109 tf_outb(tf->hob_lbal, io_ports->lbal_addr);
110 if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
111 tf_outb(tf->hob_lbam, io_ports->lbam_addr);
112 if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
113 tf_outb(tf->hob_lbah, io_ports->lbah_addr);
114
115 if (task->tf_flags & IDE_TFLAG_OUT_FEATURE)
116 tf_outb(tf->feature, io_ports->feature_addr);
117 if (task->tf_flags & IDE_TFLAG_OUT_NSECT)
118 tf_outb(tf->nsect, io_ports->nsect_addr);
119 if (task->tf_flags & IDE_TFLAG_OUT_LBAL)
120 tf_outb(tf->lbal, io_ports->lbal_addr);
121 if (task->tf_flags & IDE_TFLAG_OUT_LBAM)
122 tf_outb(tf->lbam, io_ports->lbam_addr);
123 if (task->tf_flags & IDE_TFLAG_OUT_LBAH)
124 tf_outb(tf->lbah, io_ports->lbah_addr);
125
126 if (task->tf_flags & IDE_TFLAG_OUT_DEVICE)
127 tf_outb((tf->device & HIHI) | drive->select,
128 io_ports->device_addr);
129}
130EXPORT_SYMBOL_GPL(ide_tf_load);
131
132void ide_tf_read(ide_drive_t *drive, ide_task_t *task)
133{
134 ide_hwif_t *hwif = drive->hwif;
135 struct ide_io_ports *io_ports = &hwif->io_ports;
136 struct ide_taskfile *tf = &task->tf;
137 void (*tf_outb)(u8 addr, unsigned long port);
138 u8 (*tf_inb)(unsigned long port);
139 u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
140
141 if (mmio) {
142 tf_outb = ide_mm_outb;
143 tf_inb = ide_mm_inb;
144 } else {
145 tf_outb = ide_outb;
146 tf_inb = ide_inb;
147 }
148
149 if (task->tf_flags & IDE_TFLAG_IN_DATA) {
150 u16 data;
151
152 if (mmio)
153 data = readw((void __iomem *)io_ports->data_addr);
154 else
155 data = inw(io_ports->data_addr);
156
157 tf->data = data & 0xff;
158 tf->hob_data = (data >> 8) & 0xff;
159 }
160
161 /* be sure we're looking at the low order bits */
162 tf_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
163
164 if (task->tf_flags & IDE_TFLAG_IN_FEATURE)
165 tf->feature = tf_inb(io_ports->feature_addr);
166 if (task->tf_flags & IDE_TFLAG_IN_NSECT)
167 tf->nsect = tf_inb(io_ports->nsect_addr);
168 if (task->tf_flags & IDE_TFLAG_IN_LBAL)
169 tf->lbal = tf_inb(io_ports->lbal_addr);
170 if (task->tf_flags & IDE_TFLAG_IN_LBAM)
171 tf->lbam = tf_inb(io_ports->lbam_addr);
172 if (task->tf_flags & IDE_TFLAG_IN_LBAH)
173 tf->lbah = tf_inb(io_ports->lbah_addr);
174 if (task->tf_flags & IDE_TFLAG_IN_DEVICE)
175 tf->device = tf_inb(io_ports->device_addr);
176
177 if (task->tf_flags & IDE_TFLAG_LBA48) {
178 tf_outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
179
180 if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
181 tf->hob_feature = tf_inb(io_ports->feature_addr);
182 if (task->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
183 tf->hob_nsect = tf_inb(io_ports->nsect_addr);
184 if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
185 tf->hob_lbal = tf_inb(io_ports->lbal_addr);
186 if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
187 tf->hob_lbam = tf_inb(io_ports->lbam_addr);
188 if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
189 tf->hob_lbah = tf_inb(io_ports->lbah_addr);
190 }
191}
192EXPORT_SYMBOL_GPL(ide_tf_read);
193
194/*
195 * Some localbus EIDE interfaces require a special access sequence
196 * when using 32-bit I/O instructions to transfer data. We call this
197 * the "vlb_sync" sequence, which consists of three successive reads
198 * of the sector count register location, with interrupts disabled
199 * to ensure that the reads all happen together.
200 */
201static void ata_vlb_sync(unsigned long port)
202{
203 (void)inb(port);
204 (void)inb(port);
205 (void)inb(port);
206}
207
208/*
209 * This is used for most PIO data transfers *from* the IDE interface
210 *
211 * These routines will round up any request for an odd number of bytes,
212 * so if an odd len is specified, be sure that there's at least one
213 * extra byte allocated for the buffer.
214 */
215void ide_input_data(ide_drive_t *drive, struct request *rq, void *buf,
216 unsigned int len)
217{
218 ide_hwif_t *hwif = drive->hwif;
219 struct ide_io_ports *io_ports = &hwif->io_ports;
220 unsigned long data_addr = io_ports->data_addr;
221 u8 io_32bit = drive->io_32bit;
222 u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
223
224 len++;
225
226 if (io_32bit) {
227 unsigned long uninitialized_var(flags);
228
229 if ((io_32bit & 2) && !mmio) {
230 local_irq_save(flags);
231 ata_vlb_sync(io_ports->nsect_addr);
232 }
233
234 if (mmio)
235 __ide_mm_insl((void __iomem *)data_addr, buf, len / 4);
236 else
237 insl(data_addr, buf, len / 4);
238
239 if ((io_32bit & 2) && !mmio)
240 local_irq_restore(flags);
241
242 if ((len & 3) >= 2) {
243 if (mmio)
244 __ide_mm_insw((void __iomem *)data_addr,
245 (u8 *)buf + (len & ~3), 1);
246 else
247 insw(data_addr, (u8 *)buf + (len & ~3), 1);
248 }
249 } else {
250 if (mmio)
251 __ide_mm_insw((void __iomem *)data_addr, buf, len / 2);
252 else
253 insw(data_addr, buf, len / 2);
254 }
255}
256EXPORT_SYMBOL_GPL(ide_input_data);
257
258/*
259 * This is used for most PIO data transfers *to* the IDE interface
260 */
261void ide_output_data(ide_drive_t *drive, struct request *rq, void *buf,
262 unsigned int len)
263{
264 ide_hwif_t *hwif = drive->hwif;
265 struct ide_io_ports *io_ports = &hwif->io_ports;
266 unsigned long data_addr = io_ports->data_addr;
267 u8 io_32bit = drive->io_32bit;
268 u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
269
270 len++;
271
272 if (io_32bit) {
273 unsigned long uninitialized_var(flags);
274
275 if ((io_32bit & 2) && !mmio) {
276 local_irq_save(flags);
277 ata_vlb_sync(io_ports->nsect_addr);
278 }
279
280 if (mmio)
281 __ide_mm_outsl((void __iomem *)data_addr, buf, len / 4);
282 else
283 outsl(data_addr, buf, len / 4);
284
285 if ((io_32bit & 2) && !mmio)
286 local_irq_restore(flags);
287
288 if ((len & 3) >= 2) {
289 if (mmio)
290 __ide_mm_outsw((void __iomem *)data_addr,
291 (u8 *)buf + (len & ~3), 1);
292 else
293 outsw(data_addr, (u8 *)buf + (len & ~3), 1);
294 }
295 } else {
296 if (mmio)
297 __ide_mm_outsw((void __iomem *)data_addr, buf, len / 2);
298 else
299 outsw(data_addr, buf, len / 2);
300 }
301}
302EXPORT_SYMBOL_GPL(ide_output_data);
303
304const struct ide_tp_ops default_tp_ops = {
305 .exec_command = ide_exec_command,
306 .read_status = ide_read_status,
307 .read_altstatus = ide_read_altstatus,
308
309 .set_irq = ide_set_irq,
310
311 .tf_load = ide_tf_load,
312 .tf_read = ide_tf_read,
313
314 .input_data = ide_input_data,
315 .output_data = ide_output_data,
316};
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index a9a6c208288a..2e92497b58aa 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)
196} 196}
197EXPORT_SYMBOL(ide_end_drive_cmd); 197EXPORT_SYMBOL(ide_end_drive_cmd);
198 198
199static void ide_kill_rq(ide_drive_t *drive, struct request *rq) 199void ide_kill_rq(ide_drive_t *drive, struct request *rq)
200{ 200{
201 if (rq->rq_disk) { 201 if (rq->rq_disk) {
202 struct ide_driver *drv; 202 struct ide_driver *drv;
@@ -207,133 +207,6 @@ static void ide_kill_rq(ide_drive_t *drive, struct request *rq)
207 ide_end_request(drive, 0, 0); 207 ide_end_request(drive, 0, 0);
208} 208}
209 209
210static ide_startstop_t ide_ata_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err)
211{
212 ide_hwif_t *hwif = drive->hwif;
213
214 if ((stat & ATA_BUSY) ||
215 ((stat & ATA_DF) && (drive->dev_flags & IDE_DFLAG_NOWERR) == 0)) {
216 /* other bits are useless when BUSY */
217 rq->errors |= ERROR_RESET;
218 } else if (stat & ATA_ERR) {
219 /* err has different meaning on cdrom and tape */
220 if (err == ATA_ABORTED) {
221 if ((drive->dev_flags & IDE_DFLAG_LBA) &&
222 /* some newer drives don't support ATA_CMD_INIT_DEV_PARAMS */
223 hwif->tp_ops->read_status(hwif) == ATA_CMD_INIT_DEV_PARAMS)
224 return ide_stopped;
225 } else if ((err & BAD_CRC) == BAD_CRC) {
226 /* UDMA crc error, just retry the operation */
227 drive->crc_count++;
228 } else if (err & (ATA_BBK | ATA_UNC)) {
229 /* retries won't help these */
230 rq->errors = ERROR_MAX;
231 } else if (err & ATA_TRK0NF) {
232 /* help it find track zero */
233 rq->errors |= ERROR_RECAL;
234 }
235 }
236
237 if ((stat & ATA_DRQ) && rq_data_dir(rq) == READ &&
238 (hwif->host_flags & IDE_HFLAG_ERROR_STOPS_FIFO) == 0) {
239 int nsect = drive->mult_count ? drive->mult_count : 1;
240
241 ide_pad_transfer(drive, READ, nsect * SECTOR_SIZE);
242 }
243
244 if (rq->errors >= ERROR_MAX || blk_noretry_request(rq)) {
245 ide_kill_rq(drive, rq);
246 return ide_stopped;
247 }
248
249 if (hwif->tp_ops->read_status(hwif) & (ATA_BUSY | ATA_DRQ))
250 rq->errors |= ERROR_RESET;
251
252 if ((rq->errors & ERROR_RESET) == ERROR_RESET) {
253 ++rq->errors;
254 return ide_do_reset(drive);
255 }
256
257 if ((rq->errors & ERROR_RECAL) == ERROR_RECAL)
258 drive->special.b.recalibrate = 1;
259
260 ++rq->errors;
261
262 return ide_stopped;
263}
264
265static ide_startstop_t ide_atapi_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err)
266{
267 ide_hwif_t *hwif = drive->hwif;
268
269 if ((stat & ATA_BUSY) ||
270 ((stat & ATA_DF) && (drive->dev_flags & IDE_DFLAG_NOWERR) == 0)) {
271 /* other bits are useless when BUSY */
272 rq->errors |= ERROR_RESET;
273 } else {
274 /* add decoding error stuff */
275 }
276
277 if (hwif->tp_ops->read_status(hwif) & (ATA_BUSY | ATA_DRQ))
278 /* force an abort */
279 hwif->tp_ops->exec_command(hwif, ATA_CMD_IDLEIMMEDIATE);
280
281 if (rq->errors >= ERROR_MAX) {
282 ide_kill_rq(drive, rq);
283 } else {
284 if ((rq->errors & ERROR_RESET) == ERROR_RESET) {
285 ++rq->errors;
286 return ide_do_reset(drive);
287 }
288 ++rq->errors;
289 }
290
291 return ide_stopped;
292}
293
294static ide_startstop_t
295__ide_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err)
296{
297 if (drive->media == ide_disk)
298 return ide_ata_error(drive, rq, stat, err);
299 return ide_atapi_error(drive, rq, stat, err);
300}
301
302/**
303 * ide_error - handle an error on the IDE
304 * @drive: drive the error occurred on
305 * @msg: message to report
306 * @stat: status bits
307 *
308 * ide_error() takes action based on the error returned by the drive.
309 * For normal I/O that may well include retries. We deal with
310 * both new-style (taskfile) and old style command handling here.
311 * In the case of taskfile command handling there is work left to
312 * do
313 */
314
315ide_startstop_t ide_error (ide_drive_t *drive, const char *msg, u8 stat)
316{
317 struct request *rq;
318 u8 err;
319
320 err = ide_dump_status(drive, msg, stat);
321
322 rq = drive->hwif->rq;
323 if (rq == NULL)
324 return ide_stopped;
325
326 /* retry only "normal" I/O: */
327 if (!blk_fs_request(rq)) {
328 rq->errors = 1;
329 ide_end_drive_cmd(drive, stat, err);
330 return ide_stopped;
331 }
332
333 return __ide_error(drive, rq, stat, err);
334}
335EXPORT_SYMBOL_GPL(ide_error);
336
337static void ide_tf_set_specify_cmd(ide_drive_t *drive, struct ide_taskfile *tf) 210static void ide_tf_set_specify_cmd(ide_drive_t *drive, struct ide_taskfile *tf)
338{ 211{
339 tf->nsect = drive->sect; 212 tf->nsect = drive->sect;
@@ -490,71 +363,16 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
490 return ide_stopped; 363 return ide_stopped;
491} 364}
492 365
493int ide_devset_execute(ide_drive_t *drive, const struct ide_devset *setting,
494 int arg)
495{
496 struct request_queue *q = drive->queue;
497 struct request *rq;
498 int ret = 0;
499
500 if (!(setting->flags & DS_SYNC))
501 return setting->set(drive, arg);
502
503 rq = blk_get_request(q, READ, __GFP_WAIT);
504 rq->cmd_type = REQ_TYPE_SPECIAL;
505 rq->cmd_len = 5;
506 rq->cmd[0] = REQ_DEVSET_EXEC;
507 *(int *)&rq->cmd[1] = arg;
508 rq->special = setting->set;
509
510 if (blk_execute_rq(q, NULL, rq, 0))
511 ret = rq->errors;
512 blk_put_request(rq);
513
514 return ret;
515}
516EXPORT_SYMBOL_GPL(ide_devset_execute);
517
518static ide_startstop_t ide_special_rq(ide_drive_t *drive, struct request *rq) 366static ide_startstop_t ide_special_rq(ide_drive_t *drive, struct request *rq)
519{ 367{
520 u8 cmd = rq->cmd[0]; 368 u8 cmd = rq->cmd[0];
521 369
522 if (cmd == REQ_PARK_HEADS || cmd == REQ_UNPARK_HEADS) {
523 ide_task_t task;
524 struct ide_taskfile *tf = &task.tf;
525
526 memset(&task, 0, sizeof(task));
527 if (cmd == REQ_PARK_HEADS) {
528 drive->sleep = *(unsigned long *)rq->special;
529 drive->dev_flags |= IDE_DFLAG_SLEEPING;
530 tf->command = ATA_CMD_IDLEIMMEDIATE;
531 tf->feature = 0x44;
532 tf->lbal = 0x4c;
533 tf->lbam = 0x4e;
534 tf->lbah = 0x55;
535 task.tf_flags |= IDE_TFLAG_CUSTOM_HANDLER;
536 } else /* cmd == REQ_UNPARK_HEADS */
537 tf->command = ATA_CMD_CHK_POWER;
538
539 task.tf_flags |= IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
540 task.rq = rq;
541 drive->hwif->data_phase = task.data_phase = TASKFILE_NO_DATA;
542 return do_rw_taskfile(drive, &task);
543 }
544
545 switch (cmd) { 370 switch (cmd) {
371 case REQ_PARK_HEADS:
372 case REQ_UNPARK_HEADS:
373 return ide_do_park_unpark(drive, rq);
546 case REQ_DEVSET_EXEC: 374 case REQ_DEVSET_EXEC:
547 { 375 return ide_do_devset(drive, rq);
548 int err, (*setfunc)(ide_drive_t *, int) = rq->special;
549
550 err = setfunc(drive, *(int *)&rq->cmd[1]);
551 if (err)
552 rq->errors = err;
553 else
554 err = 1;
555 ide_end_request(drive, err, 0);
556 return ide_stopped;
557 }
558 case REQ_DRIVE_RESET: 376 case REQ_DRIVE_RESET:
559 return ide_do_reset(drive); 377 return ide_do_reset(drive);
560 default: 378 default:
@@ -820,63 +638,6 @@ plug_device_2:
820 blk_plug_device(q); 638 blk_plug_device(q);
821} 639}
822 640
823/*
824 * un-busy the port etc, and clear any pending DMA status. we want to
825 * retry the current request in pio mode instead of risking tossing it
826 * all away
827 */
828static ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error)
829{
830 ide_hwif_t *hwif = drive->hwif;
831 struct request *rq;
832 ide_startstop_t ret = ide_stopped;
833
834 /*
835 * end current dma transaction
836 */
837
838 if (error < 0) {
839 printk(KERN_WARNING "%s: DMA timeout error\n", drive->name);
840 (void)hwif->dma_ops->dma_end(drive);
841 ret = ide_error(drive, "dma timeout error",
842 hwif->tp_ops->read_status(hwif));
843 } else {
844 printk(KERN_WARNING "%s: DMA timeout retry\n", drive->name);
845 hwif->dma_ops->dma_timeout(drive);
846 }
847
848 /*
849 * disable dma for now, but remember that we did so because of
850 * a timeout -- we'll reenable after we finish this next request
851 * (or rather the first chunk of it) in pio.
852 */
853 drive->dev_flags |= IDE_DFLAG_DMA_PIO_RETRY;
854 drive->retry_pio++;
855 ide_dma_off_quietly(drive);
856
857 /*
858 * un-busy drive etc and make sure request is sane
859 */
860
861 rq = hwif->rq;
862 if (!rq)
863 goto out;
864
865 hwif->rq = NULL;
866
867 rq->errors = 0;
868
869 if (!rq->bio)
870 goto out;
871
872 rq->sector = rq->bio->bi_sector;
873 rq->current_nr_sectors = bio_iovec(rq->bio)->bv_len >> 9;
874 rq->hard_cur_sectors = rq->current_nr_sectors;
875 rq->buffer = bio_data(rq->bio);
876out:
877 return ret;
878}
879
880static void ide_plug_device(ide_drive_t *drive) 641static void ide_plug_device(ide_drive_t *drive)
881{ 642{
882 struct request_queue *q = drive->queue; 643 struct request_queue *q = drive->queue;
@@ -888,6 +649,29 @@ static void ide_plug_device(ide_drive_t *drive)
888 spin_unlock_irqrestore(q->queue_lock, flags); 649 spin_unlock_irqrestore(q->queue_lock, flags);
889} 650}
890 651
652static int drive_is_ready(ide_drive_t *drive)
653{
654 ide_hwif_t *hwif = drive->hwif;
655 u8 stat = 0;
656
657 if (drive->waiting_for_dma)
658 return hwif->dma_ops->dma_test_irq(drive);
659
660 if (hwif->io_ports.ctl_addr &&
661 (hwif->host_flags & IDE_HFLAG_BROKEN_ALTSTATUS) == 0)
662 stat = hwif->tp_ops->read_altstatus(hwif);
663 else
664 /* Note: this may clear a pending IRQ!! */
665 stat = hwif->tp_ops->read_status(hwif);
666
667 if (stat & ATA_BUSY)
668 /* drive busy: definitely not interrupting */
669 return 0;
670
671 /* drive ready: *might* be interrupting */
672 return 1;
673}
674
891/** 675/**
892 * ide_timer_expiry - handle lack of an IDE interrupt 676 * ide_timer_expiry - handle lack of an IDE interrupt
893 * @data: timer callback magic (hwif) 677 * @data: timer callback magic (hwif)
@@ -1164,54 +948,6 @@ out_early:
1164} 948}
1165EXPORT_SYMBOL_GPL(ide_intr); 949EXPORT_SYMBOL_GPL(ide_intr);
1166 950
1167/**
1168 * ide_do_drive_cmd - issue IDE special command
1169 * @drive: device to issue command
1170 * @rq: request to issue
1171 *
1172 * This function issues a special IDE device request
1173 * onto the request queue.
1174 *
1175 * the rq is queued at the head of the request queue, displacing
1176 * the currently-being-processed request and this function
1177 * returns immediately without waiting for the new rq to be
1178 * completed. This is VERY DANGEROUS, and is intended for
1179 * careful use by the ATAPI tape/cdrom driver code.
1180 */
1181
1182void ide_do_drive_cmd(ide_drive_t *drive, struct request *rq)
1183{
1184 struct request_queue *q = drive->queue;
1185 unsigned long flags;
1186
1187 drive->hwif->rq = NULL;
1188
1189 spin_lock_irqsave(q->queue_lock, flags);
1190 __elv_add_request(q, rq, ELEVATOR_INSERT_FRONT, 0);
1191 spin_unlock_irqrestore(q->queue_lock, flags);
1192}
1193EXPORT_SYMBOL(ide_do_drive_cmd);
1194
1195void ide_pktcmd_tf_load(ide_drive_t *drive, u32 tf_flags, u16 bcount, u8 dma)
1196{
1197 ide_hwif_t *hwif = drive->hwif;
1198 ide_task_t task;
1199
1200 memset(&task, 0, sizeof(task));
1201 task.tf_flags = IDE_TFLAG_OUT_LBAH | IDE_TFLAG_OUT_LBAM |
1202 IDE_TFLAG_OUT_FEATURE | tf_flags;
1203 task.tf.feature = dma; /* Use PIO/DMA */
1204 task.tf.lbam = bcount & 0xff;
1205 task.tf.lbah = (bcount >> 8) & 0xff;
1206
1207 ide_tf_dump(drive->name, &task.tf);
1208 hwif->tp_ops->set_irq(hwif, 1);
1209 SELECT_MASK(drive, 0);
1210 hwif->tp_ops->tf_load(drive, &task);
1211}
1212
1213EXPORT_SYMBOL_GPL(ide_pktcmd_tf_load);
1214
1215void ide_pad_transfer(ide_drive_t *drive, int write, int len) 951void ide_pad_transfer(ide_drive_t *drive, int write, int len)
1216{ 952{
1217 ide_hwif_t *hwif = drive->hwif; 953 ide_hwif_t *hwif = drive->hwif;
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index b1892bd95c6f..317c5dadd7c0 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -27,35 +27,7 @@
27#include <asm/uaccess.h> 27#include <asm/uaccess.h>
28#include <asm/io.h> 28#include <asm/io.h>
29 29
30/* 30void SELECT_DRIVE(ide_drive_t *drive)
31 * Conventional PIO operations for ATA devices
32 */
33
34static u8 ide_inb (unsigned long port)
35{
36 return (u8) inb(port);
37}
38
39static void ide_outb (u8 val, unsigned long port)
40{
41 outb(val, port);
42}
43
44/*
45 * MMIO operations, typically used for SATA controllers
46 */
47
48static u8 ide_mm_inb (unsigned long port)
49{
50 return (u8) readb((void __iomem *) port);
51}
52
53static void ide_mm_outb (u8 value, unsigned long port)
54{
55 writeb(value, (void __iomem *) port);
56}
57
58void SELECT_DRIVE (ide_drive_t *drive)
59{ 31{
60 ide_hwif_t *hwif = drive->hwif; 32 ide_hwif_t *hwif = drive->hwif;
61 const struct ide_port_ops *port_ops = hwif->port_ops; 33 const struct ide_port_ops *port_ops = hwif->port_ops;
@@ -78,277 +50,6 @@ void SELECT_MASK(ide_drive_t *drive, int mask)
78 port_ops->maskproc(drive, mask); 50 port_ops->maskproc(drive, mask);
79} 51}
80 52
81void ide_exec_command(ide_hwif_t *hwif, u8 cmd)
82{
83 if (hwif->host_flags & IDE_HFLAG_MMIO)
84 writeb(cmd, (void __iomem *)hwif->io_ports.command_addr);
85 else
86 outb(cmd, hwif->io_ports.command_addr);
87}
88EXPORT_SYMBOL_GPL(ide_exec_command);
89
90u8 ide_read_status(ide_hwif_t *hwif)
91{
92 if (hwif->host_flags & IDE_HFLAG_MMIO)
93 return readb((void __iomem *)hwif->io_ports.status_addr);
94 else
95 return inb(hwif->io_ports.status_addr);
96}
97EXPORT_SYMBOL_GPL(ide_read_status);
98
99u8 ide_read_altstatus(ide_hwif_t *hwif)
100{
101 if (hwif->host_flags & IDE_HFLAG_MMIO)
102 return readb((void __iomem *)hwif->io_ports.ctl_addr);
103 else
104 return inb(hwif->io_ports.ctl_addr);
105}
106EXPORT_SYMBOL_GPL(ide_read_altstatus);
107
108void ide_set_irq(ide_hwif_t *hwif, int on)
109{
110 u8 ctl = ATA_DEVCTL_OBS;
111
112 if (on == 4) { /* hack for SRST */
113 ctl |= 4;
114 on &= ~4;
115 }
116
117 ctl |= on ? 0 : 2;
118
119 if (hwif->host_flags & IDE_HFLAG_MMIO)
120 writeb(ctl, (void __iomem *)hwif->io_ports.ctl_addr);
121 else
122 outb(ctl, hwif->io_ports.ctl_addr);
123}
124EXPORT_SYMBOL_GPL(ide_set_irq);
125
126void ide_tf_load(ide_drive_t *drive, ide_task_t *task)
127{
128 ide_hwif_t *hwif = drive->hwif;
129 struct ide_io_ports *io_ports = &hwif->io_ports;
130 struct ide_taskfile *tf = &task->tf;
131 void (*tf_outb)(u8 addr, unsigned long port);
132 u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
133 u8 HIHI = (task->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
134
135 if (mmio)
136 tf_outb = ide_mm_outb;
137 else
138 tf_outb = ide_outb;
139
140 if (task->tf_flags & IDE_TFLAG_FLAGGED)
141 HIHI = 0xFF;
142
143 if (task->tf_flags & IDE_TFLAG_OUT_DATA) {
144 u16 data = (tf->hob_data << 8) | tf->data;
145
146 if (mmio)
147 writew(data, (void __iomem *)io_ports->data_addr);
148 else
149 outw(data, io_ports->data_addr);
150 }
151
152 if (task->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
153 tf_outb(tf->hob_feature, io_ports->feature_addr);
154 if (task->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
155 tf_outb(tf->hob_nsect, io_ports->nsect_addr);
156 if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
157 tf_outb(tf->hob_lbal, io_ports->lbal_addr);
158 if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
159 tf_outb(tf->hob_lbam, io_ports->lbam_addr);
160 if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
161 tf_outb(tf->hob_lbah, io_ports->lbah_addr);
162
163 if (task->tf_flags & IDE_TFLAG_OUT_FEATURE)
164 tf_outb(tf->feature, io_ports->feature_addr);
165 if (task->tf_flags & IDE_TFLAG_OUT_NSECT)
166 tf_outb(tf->nsect, io_ports->nsect_addr);
167 if (task->tf_flags & IDE_TFLAG_OUT_LBAL)
168 tf_outb(tf->lbal, io_ports->lbal_addr);
169 if (task->tf_flags & IDE_TFLAG_OUT_LBAM)
170 tf_outb(tf->lbam, io_ports->lbam_addr);
171 if (task->tf_flags & IDE_TFLAG_OUT_LBAH)
172 tf_outb(tf->lbah, io_ports->lbah_addr);
173
174 if (task->tf_flags & IDE_TFLAG_OUT_DEVICE)
175 tf_outb((tf->device & HIHI) | drive->select,
176 io_ports->device_addr);
177}
178EXPORT_SYMBOL_GPL(ide_tf_load);
179
180void ide_tf_read(ide_drive_t *drive, ide_task_t *task)
181{
182 ide_hwif_t *hwif = drive->hwif;
183 struct ide_io_ports *io_ports = &hwif->io_ports;
184 struct ide_taskfile *tf = &task->tf;
185 void (*tf_outb)(u8 addr, unsigned long port);
186 u8 (*tf_inb)(unsigned long port);
187 u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
188
189 if (mmio) {
190 tf_outb = ide_mm_outb;
191 tf_inb = ide_mm_inb;
192 } else {
193 tf_outb = ide_outb;
194 tf_inb = ide_inb;
195 }
196
197 if (task->tf_flags & IDE_TFLAG_IN_DATA) {
198 u16 data;
199
200 if (mmio)
201 data = readw((void __iomem *)io_ports->data_addr);
202 else
203 data = inw(io_ports->data_addr);
204
205 tf->data = data & 0xff;
206 tf->hob_data = (data >> 8) & 0xff;
207 }
208
209 /* be sure we're looking at the low order bits */
210 tf_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
211
212 if (task->tf_flags & IDE_TFLAG_IN_FEATURE)
213 tf->feature = tf_inb(io_ports->feature_addr);
214 if (task->tf_flags & IDE_TFLAG_IN_NSECT)
215 tf->nsect = tf_inb(io_ports->nsect_addr);
216 if (task->tf_flags & IDE_TFLAG_IN_LBAL)
217 tf->lbal = tf_inb(io_ports->lbal_addr);
218 if (task->tf_flags & IDE_TFLAG_IN_LBAM)
219 tf->lbam = tf_inb(io_ports->lbam_addr);
220 if (task->tf_flags & IDE_TFLAG_IN_LBAH)
221 tf->lbah = tf_inb(io_ports->lbah_addr);
222 if (task->tf_flags & IDE_TFLAG_IN_DEVICE)
223 tf->device = tf_inb(io_ports->device_addr);
224
225 if (task->tf_flags & IDE_TFLAG_LBA48) {
226 tf_outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
227
228 if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
229 tf->hob_feature = tf_inb(io_ports->feature_addr);
230 if (task->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
231 tf->hob_nsect = tf_inb(io_ports->nsect_addr);
232 if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
233 tf->hob_lbal = tf_inb(io_ports->lbal_addr);
234 if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
235 tf->hob_lbam = tf_inb(io_ports->lbam_addr);
236 if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
237 tf->hob_lbah = tf_inb(io_ports->lbah_addr);
238 }
239}
240EXPORT_SYMBOL_GPL(ide_tf_read);
241
242/*
243 * Some localbus EIDE interfaces require a special access sequence
244 * when using 32-bit I/O instructions to transfer data. We call this
245 * the "vlb_sync" sequence, which consists of three successive reads
246 * of the sector count register location, with interrupts disabled
247 * to ensure that the reads all happen together.
248 */
249static void ata_vlb_sync(unsigned long port)
250{
251 (void)inb(port);
252 (void)inb(port);
253 (void)inb(port);
254}
255
256/*
257 * This is used for most PIO data transfers *from* the IDE interface
258 *
259 * These routines will round up any request for an odd number of bytes,
260 * so if an odd len is specified, be sure that there's at least one
261 * extra byte allocated for the buffer.
262 */
263void ide_input_data(ide_drive_t *drive, struct request *rq, void *buf,
264 unsigned int len)
265{
266 ide_hwif_t *hwif = drive->hwif;
267 struct ide_io_ports *io_ports = &hwif->io_ports;
268 unsigned long data_addr = io_ports->data_addr;
269 u8 io_32bit = drive->io_32bit;
270 u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
271
272 len++;
273
274 if (io_32bit) {
275 unsigned long uninitialized_var(flags);
276
277 if ((io_32bit & 2) && !mmio) {
278 local_irq_save(flags);
279 ata_vlb_sync(io_ports->nsect_addr);
280 }
281
282 if (mmio)
283 __ide_mm_insl((void __iomem *)data_addr, buf, len / 4);
284 else
285 insl(data_addr, buf, len / 4);
286
287 if ((io_32bit & 2) && !mmio)
288 local_irq_restore(flags);
289
290 if ((len & 3) >= 2) {
291 if (mmio)
292 __ide_mm_insw((void __iomem *)data_addr,
293 (u8 *)buf + (len & ~3), 1);
294 else
295 insw(data_addr, (u8 *)buf + (len & ~3), 1);
296 }
297 } else {
298 if (mmio)
299 __ide_mm_insw((void __iomem *)data_addr, buf, len / 2);
300 else
301 insw(data_addr, buf, len / 2);
302 }
303}
304EXPORT_SYMBOL_GPL(ide_input_data);
305
306/*
307 * This is used for most PIO data transfers *to* the IDE interface
308 */
309void ide_output_data(ide_drive_t *drive, struct request *rq, void *buf,
310 unsigned int len)
311{
312 ide_hwif_t *hwif = drive->hwif;
313 struct ide_io_ports *io_ports = &hwif->io_ports;
314 unsigned long data_addr = io_ports->data_addr;
315 u8 io_32bit = drive->io_32bit;
316 u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
317
318 len++;
319
320 if (io_32bit) {
321 unsigned long uninitialized_var(flags);
322
323 if ((io_32bit & 2) && !mmio) {
324 local_irq_save(flags);
325 ata_vlb_sync(io_ports->nsect_addr);
326 }
327
328 if (mmio)
329 __ide_mm_outsl((void __iomem *)data_addr, buf, len / 4);
330 else
331 outsl(data_addr, buf, len / 4);
332
333 if ((io_32bit & 2) && !mmio)
334 local_irq_restore(flags);
335
336 if ((len & 3) >= 2) {
337 if (mmio)
338 __ide_mm_outsw((void __iomem *)data_addr,
339 (u8 *)buf + (len & ~3), 1);
340 else
341 outsw(data_addr, (u8 *)buf + (len & ~3), 1);
342 }
343 } else {
344 if (mmio)
345 __ide_mm_outsw((void __iomem *)data_addr, buf, len / 2);
346 else
347 outsw(data_addr, buf, len / 2);
348 }
349}
350EXPORT_SYMBOL_GPL(ide_output_data);
351
352u8 ide_read_error(ide_drive_t *drive) 53u8 ide_read_error(ide_drive_t *drive)
353{ 54{
354 ide_task_t task; 55 ide_task_t task;
@@ -362,35 +63,6 @@ u8 ide_read_error(ide_drive_t *drive)
362} 63}
363EXPORT_SYMBOL_GPL(ide_read_error); 64EXPORT_SYMBOL_GPL(ide_read_error);
364 65
365void ide_read_bcount_and_ireason(ide_drive_t *drive, u16 *bcount, u8 *ireason)
366{
367 ide_task_t task;
368
369 memset(&task, 0, sizeof(task));
370 task.tf_flags = IDE_TFLAG_IN_LBAH | IDE_TFLAG_IN_LBAM |
371 IDE_TFLAG_IN_NSECT;
372
373 drive->hwif->tp_ops->tf_read(drive, &task);
374
375 *bcount = (task.tf.lbah << 8) | task.tf.lbam;
376 *ireason = task.tf.nsect & 3;
377}
378EXPORT_SYMBOL_GPL(ide_read_bcount_and_ireason);
379
380const struct ide_tp_ops default_tp_ops = {
381 .exec_command = ide_exec_command,
382 .read_status = ide_read_status,
383 .read_altstatus = ide_read_altstatus,
384
385 .set_irq = ide_set_irq,
386
387 .tf_load = ide_tf_load,
388 .tf_read = ide_tf_read,
389
390 .input_data = ide_input_data,
391 .output_data = ide_output_data,
392};
393
394void ide_fix_driveid(u16 *id) 66void ide_fix_driveid(u16 *id)
395{ 67{
396#ifndef __LITTLE_ENDIAN 68#ifndef __LITTLE_ENDIAN
@@ -412,7 +84,7 @@ void ide_fix_driveid(u16 *id)
412 * returned by the ATA_CMD_ID_ATA[PI] commands. 84 * returned by the ATA_CMD_ID_ATA[PI] commands.
413 */ 85 */
414 86
415void ide_fixstring (u8 *s, const int bytecount, const int byteswap) 87void ide_fixstring(u8 *s, const int bytecount, const int byteswap)
416{ 88{
417 u8 *p, *end = &s[bytecount & ~1]; /* bytecount must be even */ 89 u8 *p, *end = &s[bytecount & ~1]; /* bytecount must be even */
418 90
@@ -435,44 +107,9 @@ void ide_fixstring (u8 *s, const int bytecount, const int byteswap)
435 while (p != end) 107 while (p != end)
436 *p++ = '\0'; 108 *p++ = '\0';
437} 109}
438
439EXPORT_SYMBOL(ide_fixstring); 110EXPORT_SYMBOL(ide_fixstring);
440 111
441/* 112/*
442 * Needed for PCI irq sharing
443 */
444int drive_is_ready (ide_drive_t *drive)
445{
446 ide_hwif_t *hwif = drive->hwif;
447 u8 stat = 0;
448
449 if (drive->waiting_for_dma)
450 return hwif->dma_ops->dma_test_irq(drive);
451
452 /*
453 * We do a passive status test under shared PCI interrupts on
454 * cards that truly share the ATA side interrupt, but may also share
455 * an interrupt with another pci card/device. We make no assumptions
456 * about possible isa-pnp and pci-pnp issues yet.
457 */
458 if (hwif->io_ports.ctl_addr &&
459 (hwif->host_flags & IDE_HFLAG_BROKEN_ALTSTATUS) == 0)
460 stat = hwif->tp_ops->read_altstatus(hwif);
461 else
462 /* Note: this may clear a pending IRQ!! */
463 stat = hwif->tp_ops->read_status(hwif);
464
465 if (stat & ATA_BUSY)
466 /* drive busy: definitely not interrupting */
467 return 0;
468
469 /* drive ready: *might* be interrupting */
470 return 1;
471}
472
473EXPORT_SYMBOL(drive_is_ready);
474
475/*
476 * This routine busy-waits for the drive status to be not "busy". 113 * This routine busy-waits for the drive status to be not "busy".
477 * It then checks the status for all of the "good" bits and none 114 * It then checks the status for all of the "good" bits and none
478 * of the "bad" bits, and if all is okay it returns 0. All other 115 * of the "bad" bits, and if all is okay it returns 0. All other
@@ -483,7 +120,8 @@ EXPORT_SYMBOL(drive_is_ready);
483 * setting a timer to wake up at half second intervals thereafter, 120 * setting a timer to wake up at half second intervals thereafter,
484 * until timeout is achieved, before timing out. 121 * until timeout is achieved, before timing out.
485 */ 122 */
486static int __ide_wait_stat(ide_drive_t *drive, u8 good, u8 bad, unsigned long timeout, u8 *rstat) 123static int __ide_wait_stat(ide_drive_t *drive, u8 good, u8 bad,
124 unsigned long timeout, u8 *rstat)
487{ 125{
488 ide_hwif_t *hwif = drive->hwif; 126 ide_hwif_t *hwif = drive->hwif;
489 const struct ide_tp_ops *tp_ops = hwif->tp_ops; 127 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
541 * The caller should return the updated value of "startstop" in this case, 179 * The caller should return the updated value of "startstop" in this case,
542 * "startstop" is unchanged when the function returns 0. 180 * "startstop" is unchanged when the function returns 0.
543 */ 181 */
544int ide_wait_stat(ide_startstop_t *startstop, ide_drive_t *drive, u8 good, u8 bad, unsigned long timeout) 182int ide_wait_stat(ide_startstop_t *startstop, ide_drive_t *drive, u8 good,
183 u8 bad, unsigned long timeout)
545{ 184{
546 int err; 185 int err;
547 u8 stat; 186 u8 stat;
@@ -561,7 +200,6 @@ int ide_wait_stat(ide_startstop_t *startstop, ide_drive_t *drive, u8 good, u8 ba
561 200
562 return err; 201 return err;
563} 202}
564
565EXPORT_SYMBOL(ide_wait_stat); 203EXPORT_SYMBOL(ide_wait_stat);
566 204
567/** 205/**
@@ -582,7 +220,6 @@ int ide_in_drive_list(u16 *id, const struct drive_list_entry *table)
582 return 1; 220 return 1;
583 return 0; 221 return 0;
584} 222}
585
586EXPORT_SYMBOL_GPL(ide_in_drive_list); 223EXPORT_SYMBOL_GPL(ide_in_drive_list);
587 224
588/* 225/*
@@ -607,7 +244,7 @@ static const struct drive_list_entry ivb_list[] = {
607 * All hosts that use the 80c ribbon must use! 244 * All hosts that use the 80c ribbon must use!
608 * The name is derived from upper byte of word 93 and the 80c ribbon. 245 * The name is derived from upper byte of word 93 and the 80c ribbon.
609 */ 246 */
610u8 eighty_ninty_three (ide_drive_t *drive) 247u8 eighty_ninty_three(ide_drive_t *drive)
611{ 248{
612 ide_hwif_t *hwif = drive->hwif; 249 ide_hwif_t *hwif = drive->hwif;
613 u16 *id = drive->id; 250 u16 *id = drive->id;
@@ -652,47 +289,19 @@ no_80w:
652 289
653int ide_driveid_update(ide_drive_t *drive) 290int ide_driveid_update(ide_drive_t *drive)
654{ 291{
655 ide_hwif_t *hwif = drive->hwif;
656 const struct ide_tp_ops *tp_ops = hwif->tp_ops;
657 u16 *id; 292 u16 *id;
658 unsigned long flags; 293 int rc;
659 u8 stat;
660
661 /*
662 * Re-read drive->id for possible DMA mode
663 * change (copied from ide-probe.c)
664 */
665
666 SELECT_MASK(drive, 1);
667 tp_ops->set_irq(hwif, 0);
668 msleep(50);
669 tp_ops->exec_command(hwif, ATA_CMD_ID_ATA);
670 294
671 if (ide_busy_sleep(hwif, WAIT_WORSTCASE, 1)) { 295 id = kmalloc(SECTOR_SIZE, GFP_ATOMIC);
672 SELECT_MASK(drive, 0); 296 if (id == NULL)
673 return 0; 297 return 0;
674 }
675
676 msleep(50); /* wait for IRQ and ATA_DRQ */
677 stat = tp_ops->read_status(hwif);
678 298
679 if (!OK_STAT(stat, ATA_DRQ, BAD_R_STAT)) { 299 SELECT_MASK(drive, 1);
680 SELECT_MASK(drive, 0); 300 rc = ide_dev_read_id(drive, ATA_CMD_ID_ATA, id);
681 printk("%s: CHECK for good STATUS\n", drive->name);
682 return 0;
683 }
684 local_irq_save(flags);
685 SELECT_MASK(drive, 0); 301 SELECT_MASK(drive, 0);
686 id = kmalloc(SECTOR_SIZE, GFP_ATOMIC); 302
687 if (!id) { 303 if (rc)
688 local_irq_restore(flags); 304 goto out_err;
689 return 0;
690 }
691 tp_ops->input_data(drive, NULL, id, SECTOR_SIZE);
692 (void)tp_ops->read_status(hwif); /* clear drive IRQ */
693 local_irq_enable();
694 local_irq_restore(flags);
695 ide_fix_driveid(id);
696 305
697 drive->id[ATA_ID_UDMA_MODES] = id[ATA_ID_UDMA_MODES]; 306 drive->id[ATA_ID_UDMA_MODES] = id[ATA_ID_UDMA_MODES];
698 drive->id[ATA_ID_MWDMA_MODES] = id[ATA_ID_MWDMA_MODES]; 307 drive->id[ATA_ID_MWDMA_MODES] = id[ATA_ID_MWDMA_MODES];
@@ -705,6 +314,12 @@ int ide_driveid_update(ide_drive_t *drive)
705 ide_dma_off(drive); 314 ide_dma_off(drive);
706 315
707 return 1; 316 return 1;
317out_err:
318 SELECT_MASK(drive, 0);
319 if (rc == 2)
320 printk(KERN_ERR "%s: %s: bad status\n", drive->name, __func__);
321 kfree(id);
322 return 0;
708} 323}
709 324
710int ide_config_drive_speed(ide_drive_t *drive, u8 speed) 325int 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)
731 * but for some reason these don't work at 346 * but for some reason these don't work at
732 * this point (lost interrupt). 347 * this point (lost interrupt).
733 */ 348 */
734 /* 349
735 * Select the drive, and issue the SETFEATURES command
736 */
737 disable_irq_nosync(hwif->irq);
738
739 /* 350 /*
740 * FIXME: we race against the running IRQ here if 351 * FIXME: we race against the running IRQ here if
741 * this is called from non IRQ context. If we use 352 * this is called from non IRQ context. If we use
742 * disable_irq() we hang on the error path. Work 353 * disable_irq() we hang on the error path. Work
743 * is needed. 354 * is needed.
744 */ 355 */
745 356 disable_irq_nosync(hwif->irq);
357
746 udelay(1); 358 udelay(1);
747 SELECT_DRIVE(drive); 359 SELECT_DRIVE(drive);
748 SELECT_MASK(drive, 1); 360 SELECT_MASK(drive, 1);
@@ -812,8 +424,8 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed)
812 * 424 *
813 * See also ide_execute_command 425 * See also ide_execute_command
814 */ 426 */
815static void __ide_set_handler (ide_drive_t *drive, ide_handler_t *handler, 427void __ide_set_handler(ide_drive_t *drive, ide_handler_t *handler,
816 unsigned int timeout, ide_expiry_t *expiry) 428 unsigned int timeout, ide_expiry_t *expiry)
817{ 429{
818 ide_hwif_t *hwif = drive->hwif; 430 ide_hwif_t *hwif = drive->hwif;
819 431
@@ -835,9 +447,8 @@ void ide_set_handler (ide_drive_t *drive, ide_handler_t *handler,
835 __ide_set_handler(drive, handler, timeout, expiry); 447 __ide_set_handler(drive, handler, timeout, expiry);
836 spin_unlock_irqrestore(&hwif->lock, flags); 448 spin_unlock_irqrestore(&hwif->lock, flags);
837} 449}
838
839EXPORT_SYMBOL(ide_set_handler); 450EXPORT_SYMBOL(ide_set_handler);
840 451
841/** 452/**
842 * ide_execute_command - execute an IDE command 453 * ide_execute_command - execute an IDE command
843 * @drive: IDE drive to issue the command against 454 * @drive: IDE drive to issue the command against
@@ -847,7 +458,7 @@ EXPORT_SYMBOL(ide_set_handler);
847 * @expiry: handler to run on timeout 458 * @expiry: handler to run on timeout
848 * 459 *
849 * Helper function to issue an IDE command. This handles the 460 * Helper function to issue an IDE command. This handles the
850 * atomicity requirements, command timing and ensures that the 461 * atomicity requirements, command timing and ensures that the
851 * handler and IRQ setup do not race. All IDE command kick off 462 * handler and IRQ setup do not race. All IDE command kick off
852 * should go via this function or do equivalent locking. 463 * should go via this function or do equivalent locking.
853 */ 464 */
@@ -884,301 +495,6 @@ void ide_execute_pkt_cmd(ide_drive_t *drive)
884} 495}
885EXPORT_SYMBOL_GPL(ide_execute_pkt_cmd); 496EXPORT_SYMBOL_GPL(ide_execute_pkt_cmd);
886 497
887static inline void ide_complete_drive_reset(ide_drive_t *drive, int err)
888{
889 struct request *rq = drive->hwif->rq;
890
891 if (rq && blk_special_request(rq) && rq->cmd[0] == REQ_DRIVE_RESET)
892 ide_end_request(drive, err ? err : 1, 0);
893}
894
895/* needed below */
896static ide_startstop_t do_reset1 (ide_drive_t *, int);
897
898/*
899 * atapi_reset_pollfunc() gets invoked to poll the interface for completion every 50ms
900 * during an atapi drive reset operation. If the drive has not yet responded,
901 * and we have not yet hit our maximum waiting time, then the timer is restarted
902 * for another 50ms.
903 */
904static ide_startstop_t atapi_reset_pollfunc (ide_drive_t *drive)
905{
906 ide_hwif_t *hwif = drive->hwif;
907 u8 stat;
908
909 SELECT_DRIVE(drive);
910 udelay (10);
911 stat = hwif->tp_ops->read_status(hwif);
912
913 if (OK_STAT(stat, 0, ATA_BUSY))
914 printk("%s: ATAPI reset complete\n", drive->name);
915 else {
916 if (time_before(jiffies, hwif->poll_timeout)) {
917 ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20, NULL);
918 /* continue polling */
919 return ide_started;
920 }
921 /* end of polling */
922 hwif->polling = 0;
923 printk("%s: ATAPI reset timed-out, status=0x%02x\n",
924 drive->name, stat);
925 /* do it the old fashioned way */
926 return do_reset1(drive, 1);
927 }
928 /* done polling */
929 hwif->polling = 0;
930 ide_complete_drive_reset(drive, 0);
931 return ide_stopped;
932}
933
934static void ide_reset_report_error(ide_hwif_t *hwif, u8 err)
935{
936 static const char *err_master_vals[] =
937 { NULL, "passed", "formatter device error",
938 "sector buffer error", "ECC circuitry error",
939 "controlling MPU error" };
940
941 u8 err_master = err & 0x7f;
942
943 printk(KERN_ERR "%s: reset: master: ", hwif->name);
944 if (err_master && err_master < 6)
945 printk(KERN_CONT "%s", err_master_vals[err_master]);
946 else
947 printk(KERN_CONT "error (0x%02x?)", err);
948 if (err & 0x80)
949 printk(KERN_CONT "; slave: failed");
950 printk(KERN_CONT "\n");
951}
952
953/*
954 * reset_pollfunc() gets invoked to poll the interface for completion every 50ms
955 * during an ide reset operation. If the drives have not yet responded,
956 * and we have not yet hit our maximum waiting time, then the timer is restarted
957 * for another 50ms.
958 */
959static ide_startstop_t reset_pollfunc (ide_drive_t *drive)
960{
961 ide_hwif_t *hwif = drive->hwif;
962 const struct ide_port_ops *port_ops = hwif->port_ops;
963 u8 tmp;
964 int err = 0;
965
966 if (port_ops && port_ops->reset_poll) {
967 err = port_ops->reset_poll(drive);
968 if (err) {
969 printk(KERN_ERR "%s: host reset_poll failure for %s.\n",
970 hwif->name, drive->name);
971 goto out;
972 }
973 }
974
975 tmp = hwif->tp_ops->read_status(hwif);
976
977 if (!OK_STAT(tmp, 0, ATA_BUSY)) {
978 if (time_before(jiffies, hwif->poll_timeout)) {
979 ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
980 /* continue polling */
981 return ide_started;
982 }
983 printk("%s: reset timed-out, status=0x%02x\n", hwif->name, tmp);
984 drive->failures++;
985 err = -EIO;
986 } else {
987 tmp = ide_read_error(drive);
988
989 if (tmp == 1) {
990 printk(KERN_INFO "%s: reset: success\n", hwif->name);
991 drive->failures = 0;
992 } else {
993 ide_reset_report_error(hwif, tmp);
994 drive->failures++;
995 err = -EIO;
996 }
997 }
998out:
999 hwif->polling = 0; /* done polling */
1000 ide_complete_drive_reset(drive, err);
1001 return ide_stopped;
1002}
1003
1004static void ide_disk_pre_reset(ide_drive_t *drive)
1005{
1006 int legacy = (drive->id[ATA_ID_CFS_ENABLE_2] & 0x0400) ? 0 : 1;
1007
1008 drive->special.all = 0;
1009 drive->special.b.set_geometry = legacy;
1010 drive->special.b.recalibrate = legacy;
1011
1012 drive->mult_count = 0;
1013 drive->dev_flags &= ~IDE_DFLAG_PARKED;
1014
1015 if ((drive->dev_flags & IDE_DFLAG_KEEP_SETTINGS) == 0 &&
1016 (drive->dev_flags & IDE_DFLAG_USING_DMA) == 0)
1017 drive->mult_req = 0;
1018
1019 if (drive->mult_req != drive->mult_count)
1020 drive->special.b.set_multmode = 1;
1021}
1022
1023static void pre_reset(ide_drive_t *drive)
1024{
1025 const struct ide_port_ops *port_ops = drive->hwif->port_ops;
1026
1027 if (drive->media == ide_disk)
1028 ide_disk_pre_reset(drive);
1029 else
1030 drive->dev_flags |= IDE_DFLAG_POST_RESET;
1031
1032 if (drive->dev_flags & IDE_DFLAG_USING_DMA) {
1033 if (drive->crc_count)
1034 ide_check_dma_crc(drive);
1035 else
1036 ide_dma_off(drive);
1037 }
1038
1039 if ((drive->dev_flags & IDE_DFLAG_KEEP_SETTINGS) == 0) {
1040 if ((drive->dev_flags & IDE_DFLAG_USING_DMA) == 0) {
1041 drive->dev_flags &= ~IDE_DFLAG_UNMASK;
1042 drive->io_32bit = 0;
1043 }
1044 return;
1045 }
1046
1047 if (port_ops && port_ops->pre_reset)
1048 port_ops->pre_reset(drive);
1049
1050 if (drive->current_speed != 0xff)
1051 drive->desired_speed = drive->current_speed;
1052 drive->current_speed = 0xff;
1053}
1054
1055/*
1056 * do_reset1() attempts to recover a confused drive by resetting it.
1057 * Unfortunately, resetting a disk drive actually resets all devices on
1058 * the same interface, so it can really be thought of as resetting the
1059 * interface rather than resetting the drive.
1060 *
1061 * ATAPI devices have their own reset mechanism which allows them to be
1062 * individually reset without clobbering other devices on the same interface.
1063 *
1064 * Unfortunately, the IDE interface does not generate an interrupt to let
1065 * us know when the reset operation has finished, so we must poll for this.
1066 * Equally poor, though, is the fact that this may a very long time to complete,
1067 * (up to 30 seconds worstcase). So, instead of busy-waiting here for it,
1068 * we set a timer to poll at 50ms intervals.
1069 */
1070static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
1071{
1072 ide_hwif_t *hwif = drive->hwif;
1073 struct ide_io_ports *io_ports = &hwif->io_ports;
1074 const struct ide_tp_ops *tp_ops = hwif->tp_ops;
1075 const struct ide_port_ops *port_ops;
1076 ide_drive_t *tdrive;
1077 unsigned long flags, timeout;
1078 int i;
1079 DEFINE_WAIT(wait);
1080
1081 spin_lock_irqsave(&hwif->lock, flags);
1082
1083 /* We must not reset with running handlers */
1084 BUG_ON(hwif->handler != NULL);
1085
1086 /* For an ATAPI device, first try an ATAPI SRST. */
1087 if (drive->media != ide_disk && !do_not_try_atapi) {
1088 pre_reset(drive);
1089 SELECT_DRIVE(drive);
1090 udelay (20);
1091 tp_ops->exec_command(hwif, ATA_CMD_DEV_RESET);
1092 ndelay(400);
1093 hwif->poll_timeout = jiffies + WAIT_WORSTCASE;
1094 hwif->polling = 1;
1095 __ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20, NULL);
1096 spin_unlock_irqrestore(&hwif->lock, flags);
1097 return ide_started;
1098 }
1099
1100 /* We must not disturb devices in the IDE_DFLAG_PARKED state. */
1101 do {
1102 unsigned long now;
1103
1104 prepare_to_wait(&ide_park_wq, &wait, TASK_UNINTERRUPTIBLE);
1105 timeout = jiffies;
1106 ide_port_for_each_dev(i, tdrive, hwif) {
1107 if (tdrive->dev_flags & IDE_DFLAG_PRESENT &&
1108 tdrive->dev_flags & IDE_DFLAG_PARKED &&
1109 time_after(tdrive->sleep, timeout))
1110 timeout = tdrive->sleep;
1111 }
1112
1113 now = jiffies;
1114 if (time_before_eq(timeout, now))
1115 break;
1116
1117 spin_unlock_irqrestore(&hwif->lock, flags);
1118 timeout = schedule_timeout_uninterruptible(timeout - now);
1119 spin_lock_irqsave(&hwif->lock, flags);
1120 } while (timeout);
1121 finish_wait(&ide_park_wq, &wait);
1122
1123 /*
1124 * First, reset any device state data we were maintaining
1125 * for any of the drives on this interface.
1126 */
1127 ide_port_for_each_dev(i, tdrive, hwif)
1128 pre_reset(tdrive);
1129
1130 if (io_ports->ctl_addr == 0) {
1131 spin_unlock_irqrestore(&hwif->lock, flags);
1132 ide_complete_drive_reset(drive, -ENXIO);
1133 return ide_stopped;
1134 }
1135
1136 /*
1137 * Note that we also set nIEN while resetting the device,
1138 * to mask unwanted interrupts from the interface during the reset.
1139 * However, due to the design of PC hardware, this will cause an
1140 * immediate interrupt due to the edge transition it produces.
1141 * This single interrupt gives us a "fast poll" for drives that
1142 * recover from reset very quickly, saving us the first 50ms wait time.
1143 *
1144 * TODO: add ->softreset method and stop abusing ->set_irq
1145 */
1146 /* set SRST and nIEN */
1147 tp_ops->set_irq(hwif, 4);
1148 /* more than enough time */
1149 udelay(10);
1150 /* clear SRST, leave nIEN (unless device is on the quirk list) */
1151 tp_ops->set_irq(hwif, drive->quirk_list == 2);
1152 /* more than enough time */
1153 udelay(10);
1154 hwif->poll_timeout = jiffies + WAIT_WORSTCASE;
1155 hwif->polling = 1;
1156 __ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
1157
1158 /*
1159 * Some weird controller like resetting themselves to a strange
1160 * state when the disks are reset this way. At least, the Winbond
1161 * 553 documentation says that
1162 */
1163 port_ops = hwif->port_ops;
1164 if (port_ops && port_ops->resetproc)
1165 port_ops->resetproc(drive);
1166
1167 spin_unlock_irqrestore(&hwif->lock, flags);
1168 return ide_started;
1169}
1170
1171/*
1172 * ide_do_reset() is the entry point to the drive/interface reset code.
1173 */
1174
1175ide_startstop_t ide_do_reset (ide_drive_t *drive)
1176{
1177 return do_reset1(drive, 0);
1178}
1179
1180EXPORT_SYMBOL(ide_do_reset);
1181
1182/* 498/*
1183 * ide_wait_not_busy() waits for the currently selected device on the hwif 499 * ide_wait_not_busy() waits for the currently selected device on the hwif
1184 * to report a non-busy status, see comments in ide_probe_port(). 500 * 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)
1187{ 503{
1188 u8 stat = 0; 504 u8 stat = 0;
1189 505
1190 while(timeout--) { 506 while (timeout--) {
1191 /* 507 /*
1192 * Turn this into a schedule() sleep once I'm sure 508 * Turn this into a schedule() sleep once I'm sure
1193 * about locking issues (2.5 work ?). 509 * about locking issues (2.5 work ?).
diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c
index 09526a0de734..f6c683dd2987 100644
--- a/drivers/ide/ide-lib.c
+++ b/drivers/ide/ide-lib.c
@@ -5,163 +5,6 @@
5#include <linux/ide.h> 5#include <linux/ide.h>
6#include <linux/bitops.h> 6#include <linux/bitops.h>
7 7
8static const char *udma_str[] =
9 { "UDMA/16", "UDMA/25", "UDMA/33", "UDMA/44",
10 "UDMA/66", "UDMA/100", "UDMA/133", "UDMA7" };
11static const char *mwdma_str[] =
12 { "MWDMA0", "MWDMA1", "MWDMA2" };
13static const char *swdma_str[] =
14 { "SWDMA0", "SWDMA1", "SWDMA2" };
15static const char *pio_str[] =
16 { "PIO0", "PIO1", "PIO2", "PIO3", "PIO4", "PIO5" };
17
18/**
19 * ide_xfer_verbose - return IDE mode names
20 * @mode: transfer mode
21 *
22 * Returns a constant string giving the name of the mode
23 * requested.
24 */
25
26const char *ide_xfer_verbose(u8 mode)
27{
28 const char *s;
29 u8 i = mode & 0xf;
30
31 if (mode >= XFER_UDMA_0 && mode <= XFER_UDMA_7)
32 s = udma_str[i];
33 else if (mode >= XFER_MW_DMA_0 && mode <= XFER_MW_DMA_2)
34 s = mwdma_str[i];
35 else if (mode >= XFER_SW_DMA_0 && mode <= XFER_SW_DMA_2)
36 s = swdma_str[i];
37 else if (mode >= XFER_PIO_0 && mode <= XFER_PIO_5)
38 s = pio_str[i & 0x7];
39 else if (mode == XFER_PIO_SLOW)
40 s = "PIO SLOW";
41 else
42 s = "XFER ERROR";
43
44 return s;
45}
46EXPORT_SYMBOL(ide_xfer_verbose);
47
48/**
49 * ide_rate_filter - filter transfer mode
50 * @drive: IDE device
51 * @speed: desired speed
52 *
53 * Given the available transfer modes this function returns
54 * the best available speed at or below the speed requested.
55 *
56 * TODO: check device PIO capabilities
57 */
58
59static u8 ide_rate_filter(ide_drive_t *drive, u8 speed)
60{
61 ide_hwif_t *hwif = drive->hwif;
62 u8 mode = ide_find_dma_mode(drive, speed);
63
64 if (mode == 0) {
65 if (hwif->pio_mask)
66 mode = fls(hwif->pio_mask) - 1 + XFER_PIO_0;
67 else
68 mode = XFER_PIO_4;
69 }
70
71/* printk("%s: mode 0x%02x, speed 0x%02x\n", __func__, mode, speed); */
72
73 return min(speed, mode);
74}
75
76/**
77 * ide_get_best_pio_mode - get PIO mode from drive
78 * @drive: drive to consider
79 * @mode_wanted: preferred mode
80 * @max_mode: highest allowed mode
81 *
82 * This routine returns the recommended PIO settings for a given drive,
83 * based on the drive->id information and the ide_pio_blacklist[].
84 *
85 * Drive PIO mode is auto-selected if 255 is passed as mode_wanted.
86 * This is used by most chipset support modules when "auto-tuning".
87 */
88
89u8 ide_get_best_pio_mode(ide_drive_t *drive, u8 mode_wanted, u8 max_mode)
90{
91 u16 *id = drive->id;
92 int pio_mode = -1, overridden = 0;
93
94 if (mode_wanted != 255)
95 return min_t(u8, mode_wanted, max_mode);
96
97 if ((drive->hwif->host_flags & IDE_HFLAG_PIO_NO_BLACKLIST) == 0)
98 pio_mode = ide_scan_pio_blacklist((char *)&id[ATA_ID_PROD]);
99
100 if (pio_mode != -1) {
101 printk(KERN_INFO "%s: is on PIO blacklist\n", drive->name);
102 } else {
103 pio_mode = id[ATA_ID_OLD_PIO_MODES] >> 8;
104 if (pio_mode > 2) { /* 2 is maximum allowed tPIO value */
105 pio_mode = 2;
106 overridden = 1;
107 }
108
109 if (id[ATA_ID_FIELD_VALID] & 2) { /* ATA2? */
110 if (ata_id_has_iordy(id)) {
111 if (id[ATA_ID_PIO_MODES] & 7) {
112 overridden = 0;
113 if (id[ATA_ID_PIO_MODES] & 4)
114 pio_mode = 5;
115 else if (id[ATA_ID_PIO_MODES] & 2)
116 pio_mode = 4;
117 else
118 pio_mode = 3;
119 }
120 }
121 }
122
123 if (overridden)
124 printk(KERN_INFO "%s: tPIO > 2, assuming tPIO = 2\n",
125 drive->name);
126 }
127
128 if (pio_mode > max_mode)
129 pio_mode = max_mode;
130
131 return pio_mode;
132}
133EXPORT_SYMBOL_GPL(ide_get_best_pio_mode);
134
135/* req_pio == "255" for auto-tune */
136void ide_set_pio(ide_drive_t *drive, u8 req_pio)
137{
138 ide_hwif_t *hwif = drive->hwif;
139 const struct ide_port_ops *port_ops = hwif->port_ops;
140 u8 host_pio, pio;
141
142 if (port_ops == NULL || port_ops->set_pio_mode == NULL ||
143 (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
144 return;
145
146 BUG_ON(hwif->pio_mask == 0x00);
147
148 host_pio = fls(hwif->pio_mask) - 1;
149
150 pio = ide_get_best_pio_mode(drive, req_pio, host_pio);
151
152 /*
153 * TODO:
154 * - report device max PIO mode
155 * - check req_pio != 255 against device max PIO mode
156 */
157 printk(KERN_DEBUG "%s: host max PIO%d wanted PIO%d%s selected PIO%d\n",
158 drive->name, host_pio, req_pio,
159 req_pio == 255 ? "(auto-tune)" : "", pio);
160
161 (void)ide_set_pio_mode(drive, XFER_PIO_0 + pio);
162}
163EXPORT_SYMBOL_GPL(ide_set_pio);
164
165/** 8/**
166 * ide_toggle_bounce - handle bounce buffering 9 * ide_toggle_bounce - handle bounce buffering
167 * @drive: drive to update 10 * @drive: drive to update
@@ -188,89 +31,6 @@ void ide_toggle_bounce(ide_drive_t *drive, int on)
188 blk_queue_bounce_limit(drive->queue, addr); 31 blk_queue_bounce_limit(drive->queue, addr);
189} 32}
190 33
191int ide_set_pio_mode(ide_drive_t *drive, const u8 mode)
192{
193 ide_hwif_t *hwif = drive->hwif;
194 const struct ide_port_ops *port_ops = hwif->port_ops;
195
196 if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)
197 return 0;
198
199 if (port_ops == NULL || port_ops->set_pio_mode == NULL)
200 return -1;
201
202 /*
203 * TODO: temporary hack for some legacy host drivers that didn't
204 * set transfer mode on the device in ->set_pio_mode method...
205 */
206 if (port_ops->set_dma_mode == NULL) {
207 port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
208 return 0;
209 }
210
211 if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) {
212 if (ide_config_drive_speed(drive, mode))
213 return -1;
214 port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
215 return 0;
216 } else {
217 port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
218 return ide_config_drive_speed(drive, mode);
219 }
220}
221
222int ide_set_dma_mode(ide_drive_t *drive, const u8 mode)
223{
224 ide_hwif_t *hwif = drive->hwif;
225 const struct ide_port_ops *port_ops = hwif->port_ops;
226
227 if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)
228 return 0;
229
230 if (port_ops == NULL || port_ops->set_dma_mode == NULL)
231 return -1;
232
233 if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) {
234 if (ide_config_drive_speed(drive, mode))
235 return -1;
236 port_ops->set_dma_mode(drive, mode);
237 return 0;
238 } else {
239 port_ops->set_dma_mode(drive, mode);
240 return ide_config_drive_speed(drive, mode);
241 }
242}
243EXPORT_SYMBOL_GPL(ide_set_dma_mode);
244
245/**
246 * ide_set_xfer_rate - set transfer rate
247 * @drive: drive to set
248 * @rate: speed to attempt to set
249 *
250 * General helper for setting the speed of an IDE device. This
251 * function knows about user enforced limits from the configuration
252 * which ->set_pio_mode/->set_dma_mode does not.
253 */
254
255int ide_set_xfer_rate(ide_drive_t *drive, u8 rate)
256{
257 ide_hwif_t *hwif = drive->hwif;
258 const struct ide_port_ops *port_ops = hwif->port_ops;
259
260 if (port_ops == NULL || port_ops->set_dma_mode == NULL ||
261 (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
262 return -1;
263
264 rate = ide_rate_filter(drive, rate);
265
266 BUG_ON(rate < XFER_PIO_0);
267
268 if (rate >= XFER_PIO_0 && rate <= XFER_PIO_5)
269 return ide_set_pio_mode(drive, rate);
270
271 return ide_set_dma_mode(drive, rate);
272}
273
274static void ide_dump_opcode(ide_drive_t *drive) 34static void ide_dump_opcode(ide_drive_t *drive)
275{ 35{
276 struct request *rq = drive->hwif->rq; 36 struct request *rq = drive->hwif->rq;
diff --git a/drivers/ide/ide-park.c b/drivers/ide/ide-park.c
index c875a957596c..f30e52152fcb 100644
--- a/drivers/ide/ide-park.c
+++ b/drivers/ide/ide-park.c
@@ -1,5 +1,6 @@
1#include <linux/kernel.h> 1#include <linux/kernel.h>
2#include <linux/ide.h> 2#include <linux/ide.h>
3#include <linux/hdreg.h>
3#include <linux/jiffies.h> 4#include <linux/jiffies.h>
4#include <linux/blkdev.h> 5#include <linux/blkdev.h>
5 6
@@ -60,6 +61,30 @@ out:
60 return; 61 return;
61} 62}
62 63
64ide_startstop_t ide_do_park_unpark(ide_drive_t *drive, struct request *rq)
65{
66 ide_task_t task;
67 struct ide_taskfile *tf = &task.tf;
68
69 memset(&task, 0, sizeof(task));
70 if (rq->cmd[0] == REQ_PARK_HEADS) {
71 drive->sleep = *(unsigned long *)rq->special;
72 drive->dev_flags |= IDE_DFLAG_SLEEPING;
73 tf->command = ATA_CMD_IDLEIMMEDIATE;
74 tf->feature = 0x44;
75 tf->lbal = 0x4c;
76 tf->lbam = 0x4e;
77 tf->lbah = 0x55;
78 task.tf_flags |= IDE_TFLAG_CUSTOM_HANDLER;
79 } else /* cmd == REQ_UNPARK_HEADS */
80 tf->command = ATA_CMD_CHK_POWER;
81
82 task.tf_flags |= IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
83 task.rq = rq;
84 drive->hwif->data_phase = task.data_phase = TASKFILE_NO_DATA;
85 return do_rw_taskfile(drive, &task);
86}
87
63ssize_t ide_park_show(struct device *dev, struct device_attribute *attr, 88ssize_t ide_park_show(struct device *dev, struct device_attribute *attr,
64 char *buf) 89 char *buf)
65{ 90{
diff --git a/drivers/ide/ide-pci-generic.c b/drivers/ide/ide-pci-generic.c
index bddae2b329a0..61111fd27130 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 */
33module_param_named(all_generic_ide, ide_generic_all, bool, 0444); 33module_param_named(all_generic_ide, ide_generic_all, bool, 0444);
34MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers."); 34MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers.");
35 35
36#define IDE_HFLAGS_UMC (IDE_HFLAG_NO_DMA | IDE_HFLAG_FORCE_LEGACY_IRQS)
37
38#define DECLARE_GENERIC_PCI_DEV(extra_flags) \ 36#define DECLARE_GENERIC_PCI_DEV(extra_flags) \
39 { \ 37 { \
40 .name = DRV_NAME, \ 38 .name = DRV_NAME, \
@@ -61,7 +59,7 @@ static const struct ide_port_info generic_chipsets[] __devinitdata = {
61 /* 2: SAMURAI / HT6565 / HINT_IDE */ 59 /* 2: SAMURAI / HT6565 / HINT_IDE */
62 DECLARE_GENERIC_PCI_DEV(0), 60 DECLARE_GENERIC_PCI_DEV(0),
63 /* 3: UM8673F / UM8886A / UM8886BF */ 61 /* 3: UM8673F / UM8886A / UM8886BF */
64 DECLARE_GENERIC_PCI_DEV(IDE_HFLAGS_UMC), 62 DECLARE_GENERIC_PCI_DEV(IDE_HFLAG_NO_DMA),
65 /* 4: VIA_IDE / OPTI621V / Piccolo010{2,3,5} */ 63 /* 4: VIA_IDE / OPTI621V / Piccolo010{2,3,5} */
66 DECLARE_GENERIC_PCI_DEV(IDE_HFLAG_NO_AUTODMA), 64 DECLARE_GENERIC_PCI_DEV(IDE_HFLAG_NO_AUTODMA),
67 65
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index ee8e3e7cad51..974067043fba 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)
181 * do_identify - identify a drive 181 * do_identify - identify a drive
182 * @drive: drive to identify 182 * @drive: drive to identify
183 * @cmd: command used 183 * @cmd: command used
184 * @id: buffer for IDENTIFY data
184 * 185 *
185 * Called when we have issued a drive identify command to 186 * Called when we have issued a drive identify command to
186 * read and parse the results. This function is run with 187 * read and parse the results. This function is run with
187 * interrupts disabled. 188 * interrupts disabled.
188 */ 189 */
189 190
190static void do_identify(ide_drive_t *drive, u8 cmd) 191static void do_identify(ide_drive_t *drive, u8 cmd, u16 *id)
191{ 192{
192 ide_hwif_t *hwif = drive->hwif; 193 ide_hwif_t *hwif = drive->hwif;
193 u16 *id = drive->id;
194 char *m = (char *)&id[ATA_ID_PROD]; 194 char *m = (char *)&id[ATA_ID_PROD];
195 unsigned long flags; 195 unsigned long flags;
196 int bswap = 1; 196 int bswap = 1;
@@ -233,16 +233,6 @@ static void do_identify(ide_drive_t *drive, u8 cmd)
233 drive->dev_flags |= IDE_DFLAG_PRESENT; 233 drive->dev_flags |= IDE_DFLAG_PRESENT;
234 drive->dev_flags &= ~IDE_DFLAG_DEAD; 234 drive->dev_flags &= ~IDE_DFLAG_DEAD;
235 235
236 /*
237 * Check for an ATAPI device
238 */
239 if (cmd == ATA_CMD_ID_ATAPI)
240 ide_classify_atapi_dev(drive);
241 else
242 /*
243 * Not an ATAPI device: looks like a "regular" hard disk
244 */
245 ide_classify_ata_dev(drive);
246 return; 236 return;
247err_misc: 237err_misc:
248 kfree(id); 238 kfree(id);
@@ -250,21 +240,19 @@ err_misc:
250} 240}
251 241
252/** 242/**
253 * actual_try_to_identify - send ata/atapi identify 243 * ide_dev_read_id - send ATA/ATAPI IDENTIFY command
254 * @drive: drive to identify 244 * @drive: drive to identify
255 * @cmd: command to use 245 * @cmd: command to use
246 * @id: buffer for IDENTIFY data
256 * 247 *
257 * try_to_identify() sends an ATA(PI) IDENTIFY request to a drive 248 * Sends an ATA(PI) IDENTIFY request to a drive and waits for a response.
258 * and waits for a response. It also monitors irqs while this is
259 * happening, in hope of automatically determining which one is
260 * being used by the interface.
261 * 249 *
262 * Returns: 0 device was identified 250 * Returns: 0 device was identified
263 * 1 device timed-out (no response to identify request) 251 * 1 device timed-out (no response to identify request)
264 * 2 device aborted the command (refused to identify itself) 252 * 2 device aborted the command (refused to identify itself)
265 */ 253 */
266 254
267static int actual_try_to_identify (ide_drive_t *drive, u8 cmd) 255int ide_dev_read_id(ide_drive_t *drive, u8 cmd, u16 *id)
268{ 256{
269 ide_hwif_t *hwif = drive->hwif; 257 ide_hwif_t *hwif = drive->hwif;
270 struct ide_io_ports *io_ports = &hwif->io_ports; 258 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)
273 unsigned long timeout; 261 unsigned long timeout;
274 u8 s = 0, a = 0; 262 u8 s = 0, a = 0;
275 263
264 /*
265 * Disable device IRQ. Otherwise we'll get spurious interrupts
266 * during the identify phase that the IRQ handler isn't expecting.
267 */
268 if (io_ports->ctl_addr)
269 tp_ops->set_irq(hwif, 0);
270
276 /* take a deep breath */ 271 /* take a deep breath */
277 msleep(50); 272 msleep(50);
278 273
@@ -317,7 +312,7 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd)
317 312
318 if (OK_STAT(s, ATA_DRQ, BAD_R_STAT)) { 313 if (OK_STAT(s, ATA_DRQ, BAD_R_STAT)) {
319 /* drive returned ID */ 314 /* drive returned ID */
320 do_identify(drive, cmd); 315 do_identify(drive, cmd, id);
321 /* drive responded with ID */ 316 /* drive responded with ID */
322 rc = 0; 317 rc = 0;
323 /* clear drive IRQ */ 318 /* clear drive IRQ */
@@ -329,63 +324,6 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd)
329 return rc; 324 return rc;
330} 325}
331 326
332/**
333 * try_to_identify - try to identify a drive
334 * @drive: drive to probe
335 * @cmd: command to use
336 *
337 * Issue the identify command and then do IRQ probing to
338 * complete the identification when needed by finding the
339 * IRQ the drive is attached to
340 */
341
342static int try_to_identify (ide_drive_t *drive, u8 cmd)
343{
344 ide_hwif_t *hwif = drive->hwif;
345 const struct ide_tp_ops *tp_ops = hwif->tp_ops;
346 int retval;
347 int autoprobe = 0;
348 unsigned long cookie = 0;
349
350 /*
351 * Disable device irq unless we need to
352 * probe for it. Otherwise we'll get spurious
353 * interrupts during the identify-phase that
354 * the irq handler isn't expecting.
355 */
356 if (hwif->io_ports.ctl_addr) {
357 if (!hwif->irq) {
358 autoprobe = 1;
359 cookie = probe_irq_on();
360 }
361 tp_ops->set_irq(hwif, autoprobe);
362 }
363
364 retval = actual_try_to_identify(drive, cmd);
365
366 if (autoprobe) {
367 int irq;
368
369 tp_ops->set_irq(hwif, 0);
370 /* clear drive IRQ */
371 (void)tp_ops->read_status(hwif);
372 udelay(5);
373 irq = probe_irq_off(cookie);
374 if (!hwif->irq) {
375 if (irq > 0) {
376 hwif->irq = irq;
377 } else {
378 /* Mmmm.. multiple IRQs..
379 * don't know which was ours
380 */
381 printk(KERN_ERR "%s: IRQ probe failed (0x%lx)\n",
382 drive->name, cookie);
383 }
384 }
385 }
386 return retval;
387}
388
389int ide_busy_sleep(ide_hwif_t *hwif, unsigned long timeout, int altstatus) 327int ide_busy_sleep(ide_hwif_t *hwif, unsigned long timeout, int altstatus)
390{ 328{
391 u8 stat; 329 u8 stat;
@@ -440,6 +378,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
440{ 378{
441 ide_hwif_t *hwif = drive->hwif; 379 ide_hwif_t *hwif = drive->hwif;
442 const struct ide_tp_ops *tp_ops = hwif->tp_ops; 380 const struct ide_tp_ops *tp_ops = hwif->tp_ops;
381 u16 *id = drive->id;
443 int rc; 382 int rc;
444 u8 present = !!(drive->dev_flags & IDE_DFLAG_PRESENT), stat; 383 u8 present = !!(drive->dev_flags & IDE_DFLAG_PRESENT), stat;
445 384
@@ -475,11 +414,10 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
475 414
476 if (OK_STAT(stat, ATA_DRDY, ATA_BUSY) || 415 if (OK_STAT(stat, ATA_DRDY, ATA_BUSY) ||
477 present || cmd == ATA_CMD_ID_ATAPI) { 416 present || cmd == ATA_CMD_ID_ATAPI) {
478 /* send cmd and wait */ 417 rc = ide_dev_read_id(drive, cmd, id);
479 if ((rc = try_to_identify(drive, cmd))) { 418 if (rc)
480 /* failed: try again */ 419 /* failed: try again */
481 rc = try_to_identify(drive,cmd); 420 rc = ide_dev_read_id(drive, cmd, id);
482 }
483 421
484 stat = tp_ops->read_status(hwif); 422 stat = tp_ops->read_status(hwif);
485 423
@@ -494,7 +432,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
494 msleep(50); 432 msleep(50);
495 tp_ops->exec_command(hwif, ATA_CMD_DEV_RESET); 433 tp_ops->exec_command(hwif, ATA_CMD_DEV_RESET);
496 (void)ide_busy_sleep(hwif, WAIT_WORSTCASE, 0); 434 (void)ide_busy_sleep(hwif, WAIT_WORSTCASE, 0);
497 rc = try_to_identify(drive, cmd); 435 rc = ide_dev_read_id(drive, cmd, id);
498 } 436 }
499 437
500 /* ensure drive IRQ is clear */ 438 /* ensure drive IRQ is clear */
@@ -517,37 +455,6 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
517 return rc; 455 return rc;
518} 456}
519 457
520/*
521 *
522 */
523static void enable_nest (ide_drive_t *drive)
524{
525 ide_hwif_t *hwif = drive->hwif;
526 const struct ide_tp_ops *tp_ops = hwif->tp_ops;
527 u8 stat;
528
529 printk(KERN_INFO "%s: enabling %s -- ",
530 hwif->name, (char *)&drive->id[ATA_ID_PROD]);
531
532 SELECT_DRIVE(drive);
533 msleep(50);
534 tp_ops->exec_command(hwif, ATA_EXABYTE_ENABLE_NEST);
535
536 if (ide_busy_sleep(hwif, WAIT_WORSTCASE, 0)) {
537 printk(KERN_CONT "failed (timeout)\n");
538 return;
539 }
540
541 msleep(50);
542
543 stat = tp_ops->read_status(hwif);
544
545 if (!OK_STAT(stat, 0, BAD_STAT))
546 printk(KERN_CONT "failed (status = 0x%02x)\n", stat);
547 else
548 printk(KERN_CONT "success\n");
549}
550
551/** 458/**
552 * probe_for_drives - upper level drive probe 459 * probe_for_drives - upper level drive probe
553 * @drive: drive to probe for 460 * @drive: drive to probe for
@@ -563,6 +470,8 @@ static void enable_nest (ide_drive_t *drive)
563static u8 probe_for_drive(ide_drive_t *drive) 470static u8 probe_for_drive(ide_drive_t *drive)
564{ 471{
565 char *m; 472 char *m;
473 int rc;
474 u8 cmd;
566 475
567 /* 476 /*
568 * In order to keep things simple we have an id 477 * In order to keep things simple we have an id
@@ -586,21 +495,19 @@ static u8 probe_for_drive(ide_drive_t *drive)
586 495
587 /* skip probing? */ 496 /* skip probing? */
588 if ((drive->dev_flags & IDE_DFLAG_NOPROBE) == 0) { 497 if ((drive->dev_flags & IDE_DFLAG_NOPROBE) == 0) {
589retry:
590 /* if !(success||timed-out) */ 498 /* if !(success||timed-out) */
591 if (do_probe(drive, ATA_CMD_ID_ATA) >= 2) 499 cmd = ATA_CMD_ID_ATA;
500 rc = do_probe(drive, cmd);
501 if (rc >= 2) {
592 /* look for ATAPI device */ 502 /* look for ATAPI device */
593 (void)do_probe(drive, ATA_CMD_ID_ATAPI); 503 cmd = ATA_CMD_ID_ATAPI;
504 rc = do_probe(drive, cmd);
505 }
594 506
595 if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0) 507 if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
596 /* drive not found */ 508 /* drive not found */
597 return 0; 509 return 0;
598 510
599 if (strstr(m, "E X A B Y T E N E S T")) {
600 enable_nest(drive);
601 goto retry;
602 }
603
604 /* identification failed? */ 511 /* identification failed? */
605 if ((drive->dev_flags & IDE_DFLAG_ID_READ) == 0) { 512 if ((drive->dev_flags & IDE_DFLAG_ID_READ) == 0) {
606 if (drive->media == ide_disk) { 513 if (drive->media == ide_disk) {
@@ -614,8 +521,12 @@ retry:
614 printk(KERN_WARNING "%s: Unknown device on bus refused identification. Ignoring.\n", drive->name); 521 printk(KERN_WARNING "%s: Unknown device on bus refused identification. Ignoring.\n", drive->name);
615 drive->dev_flags &= ~IDE_DFLAG_PRESENT; 522 drive->dev_flags &= ~IDE_DFLAG_PRESENT;
616 } 523 }
524 } else {
525 if (cmd == ATA_CMD_ID_ATAPI)
526 ide_classify_atapi_dev(drive);
527 else
528 ide_classify_ata_dev(drive);
617 } 529 }
618 /* drive was found */
619 } 530 }
620 531
621 if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0) 532 if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
@@ -779,7 +690,6 @@ EXPORT_SYMBOL_GPL(ide_undecoded_slave);
779static int ide_probe_port(ide_hwif_t *hwif) 690static int ide_probe_port(ide_hwif_t *hwif)
780{ 691{
781 ide_drive_t *drive; 692 ide_drive_t *drive;
782 unsigned long flags;
783 unsigned int irqd; 693 unsigned int irqd;
784 int i, rc = -ENODEV; 694 int i, rc = -ENODEV;
785 695
@@ -797,9 +707,6 @@ static int ide_probe_port(ide_hwif_t *hwif)
797 if (irqd) 707 if (irqd)
798 disable_irq(hwif->irq); 708 disable_irq(hwif->irq);
799 709
800 local_save_flags(flags);
801 local_irq_enable_in_hardirq();
802
803 if (ide_port_wait_ready(hwif) == -EBUSY) 710 if (ide_port_wait_ready(hwif) == -EBUSY)
804 printk(KERN_DEBUG "%s: Wait for ready failed before probe !\n", hwif->name); 711 printk(KERN_DEBUG "%s: Wait for ready failed before probe !\n", hwif->name);
805 712
@@ -813,8 +720,6 @@ static int ide_probe_port(ide_hwif_t *hwif)
813 rc = 0; 720 rc = 0;
814 } 721 }
815 722
816 local_irq_restore(flags);
817
818 /* 723 /*
819 * Use cached IRQ number. It might be (and is...) changed by probe 724 * Use cached IRQ number. It might be (and is...) changed by probe
820 * code above 725 * code above
@@ -831,29 +736,18 @@ static void ide_port_tune_devices(ide_hwif_t *hwif)
831 ide_drive_t *drive; 736 ide_drive_t *drive;
832 int i; 737 int i;
833 738
834 ide_port_for_each_dev(i, drive, hwif) { 739 ide_port_for_each_present_dev(i, drive, hwif) {
835 if (drive->dev_flags & IDE_DFLAG_PRESENT) { 740 if (port_ops && port_ops->quirkproc)
836 if (port_ops && port_ops->quirkproc) 741 port_ops->quirkproc(drive);
837 port_ops->quirkproc(drive);
838 }
839 } 742 }
840 743
841 ide_port_for_each_dev(i, drive, hwif) { 744 ide_port_for_each_present_dev(i, drive, hwif) {
842 if (drive->dev_flags & IDE_DFLAG_PRESENT) { 745 ide_set_max_pio(drive);
843 ide_set_max_pio(drive);
844 746
845 drive->dev_flags |= IDE_DFLAG_NICE1; 747 drive->dev_flags |= IDE_DFLAG_NICE1;
846
847 if (hwif->dma_ops)
848 ide_set_dma(drive);
849 }
850 }
851 748
852 ide_port_for_each_dev(i, drive, hwif) { 749 if (hwif->dma_ops)
853 if (hwif->host_flags & IDE_HFLAG_NO_IO_32BIT) 750 ide_set_dma(drive);
854 drive->dev_flags |= IDE_DFLAG_NO_IO_32BIT;
855 else
856 drive->dev_flags &= ~IDE_DFLAG_NO_IO_32BIT;
857 } 751 }
858} 752}
859 753
@@ -924,10 +818,7 @@ static int ide_port_setup_devices(ide_hwif_t *hwif)
924 int i, j = 0; 818 int i, j = 0;
925 819
926 mutex_lock(&ide_cfg_mtx); 820 mutex_lock(&ide_cfg_mtx);
927 ide_port_for_each_dev(i, drive, hwif) { 821 ide_port_for_each_present_dev(i, drive, hwif) {
928 if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
929 continue;
930
931 if (ide_init_queue(drive)) { 822 if (ide_init_queue(drive)) {
932 printk(KERN_ERR "ide: failed to init %s\n", 823 printk(KERN_ERR "ide: failed to init %s\n",
933 drive->name); 824 drive->name);
@@ -953,13 +844,6 @@ static int init_irq (ide_hwif_t *hwif)
953 irq_handler_t irq_handler; 844 irq_handler_t irq_handler;
954 int sa = 0; 845 int sa = 0;
955 846
956 mutex_lock(&ide_cfg_mtx);
957 spin_lock_init(&hwif->lock);
958
959 init_timer(&hwif->timer);
960 hwif->timer.function = &ide_timer_expiry;
961 hwif->timer.data = (unsigned long)hwif;
962
963 irq_handler = hwif->host->irq_handler; 847 irq_handler = hwif->host->irq_handler;
964 if (irq_handler == NULL) 848 if (irq_handler == NULL)
965 irq_handler = ide_intr; 849 irq_handler = ide_intr;
@@ -997,10 +881,8 @@ static int init_irq (ide_hwif_t *hwif)
997 printk(KERN_CONT " (serialized)"); 881 printk(KERN_CONT " (serialized)");
998 printk(KERN_CONT "\n"); 882 printk(KERN_CONT "\n");
999 883
1000 mutex_unlock(&ide_cfg_mtx);
1001 return 0; 884 return 0;
1002out_up: 885out_up:
1003 mutex_unlock(&ide_cfg_mtx);
1004 return 1; 886 return 1;
1005} 887}
1006 888
@@ -1099,14 +981,9 @@ static void drive_release_dev (struct device *dev)
1099 981
1100static int hwif_init(ide_hwif_t *hwif) 982static int hwif_init(ide_hwif_t *hwif)
1101{ 983{
1102 int old_irq;
1103
1104 if (!hwif->irq) { 984 if (!hwif->irq) {
1105 hwif->irq = __ide_default_irq(hwif->io_ports.data_addr); 985 printk(KERN_ERR "%s: disabled, no IRQ\n", hwif->name);
1106 if (!hwif->irq) { 986 return 0;
1107 printk(KERN_ERR "%s: disabled, no IRQ\n", hwif->name);
1108 return 0;
1109 }
1110 } 987 }
1111 988
1112 if (register_blkdev(hwif->major, hwif->name)) 989 if (register_blkdev(hwif->major, hwif->name))
@@ -1124,29 +1001,12 @@ static int hwif_init(ide_hwif_t *hwif)
1124 1001
1125 sg_init_table(hwif->sg_table, hwif->sg_max_nents); 1002 sg_init_table(hwif->sg_table, hwif->sg_max_nents);
1126 1003
1127 if (init_irq(hwif) == 0)
1128 goto done;
1129
1130 old_irq = hwif->irq;
1131 /*
1132 * It failed to initialise. Find the default IRQ for
1133 * this port and try that.
1134 */
1135 hwif->irq = __ide_default_irq(hwif->io_ports.data_addr);
1136 if (!hwif->irq) {
1137 printk(KERN_ERR "%s: disabled, unable to get IRQ %d\n",
1138 hwif->name, old_irq);
1139 goto out;
1140 }
1141 if (init_irq(hwif)) { 1004 if (init_irq(hwif)) {
1142 printk(KERN_ERR "%s: probed IRQ %d and default IRQ %d failed\n", 1005 printk(KERN_ERR "%s: disabled, unable to get IRQ %d\n",
1143 hwif->name, old_irq, hwif->irq); 1006 hwif->name, hwif->irq);
1144 goto out; 1007 goto out;
1145 } 1008 }
1146 printk(KERN_WARNING "%s: probed IRQ %d failed, using default\n",
1147 hwif->name, hwif->irq);
1148 1009
1149done:
1150 blk_register_region(MKDEV(hwif->major, 0), MAX_DRIVES << PARTN_BITS, 1010 blk_register_region(MKDEV(hwif->major, 0), MAX_DRIVES << PARTN_BITS,
1151 THIS_MODULE, ata_probe, ata_lock, hwif); 1011 THIS_MODULE, ata_probe, ata_lock, hwif);
1152 return 1; 1012 return 1;
@@ -1161,13 +1021,10 @@ static void hwif_register_devices(ide_hwif_t *hwif)
1161 ide_drive_t *drive; 1021 ide_drive_t *drive;
1162 unsigned int i; 1022 unsigned int i;
1163 1023
1164 ide_port_for_each_dev(i, drive, hwif) { 1024 ide_port_for_each_present_dev(i, drive, hwif) {
1165 struct device *dev = &drive->gendev; 1025 struct device *dev = &drive->gendev;
1166 int ret; 1026 int ret;
1167 1027
1168 if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
1169 continue;
1170
1171 dev_set_name(dev, "%u.%u", hwif->index, i); 1028 dev_set_name(dev, "%u.%u", hwif->index, i);
1172 dev->parent = &hwif->gendev; 1029 dev->parent = &hwif->gendev;
1173 dev->bus = &ide_bus_type; 1030 dev->bus = &ide_bus_type;
@@ -1192,6 +1049,8 @@ static void ide_port_init_devices(ide_hwif_t *hwif)
1192 1049
1193 if (hwif->host_flags & IDE_HFLAG_IO_32BIT) 1050 if (hwif->host_flags & IDE_HFLAG_IO_32BIT)
1194 drive->io_32bit = 1; 1051 drive->io_32bit = 1;
1052 if (hwif->host_flags & IDE_HFLAG_NO_IO_32BIT)
1053 drive->dev_flags |= IDE_DFLAG_NO_IO_32BIT;
1195 if (hwif->host_flags & IDE_HFLAG_UNMASK_IRQS) 1054 if (hwif->host_flags & IDE_HFLAG_UNMASK_IRQS)
1196 drive->dev_flags |= IDE_DFLAG_UNMASK; 1055 drive->dev_flags |= IDE_DFLAG_UNMASK;
1197 if (hwif->host_flags & IDE_HFLAG_NO_UNMASK_IRQS) 1056 if (hwif->host_flags & IDE_HFLAG_NO_UNMASK_IRQS)
@@ -1213,10 +1072,6 @@ static void ide_init_port(ide_hwif_t *hwif, unsigned int port,
1213 if (d->init_iops) 1072 if (d->init_iops)
1214 d->init_iops(hwif); 1073 d->init_iops(hwif);
1215 1074
1216 if ((!hwif->irq && (d->host_flags & IDE_HFLAG_LEGACY_IRQS)) ||
1217 (d->host_flags & IDE_HFLAG_FORCE_LEGACY_IRQS))
1218 hwif->irq = port ? 15 : 14;
1219
1220 /* ->host_flags may be set by ->init_iops (or even earlier...) */ 1075 /* ->host_flags may be set by ->init_iops (or even earlier...) */
1221 hwif->host_flags |= d->host_flags; 1076 hwif->host_flags |= d->host_flags;
1222 hwif->pio_mask = d->pio_mask; 1077 hwif->pio_mask = d->pio_mask;
@@ -1317,6 +1172,12 @@ static void ide_init_port_data(ide_hwif_t *hwif, unsigned int index)
1317 hwif->name[2] = 'e'; 1172 hwif->name[2] = 'e';
1318 hwif->name[3] = '0' + index; 1173 hwif->name[3] = '0' + index;
1319 1174
1175 spin_lock_init(&hwif->lock);
1176
1177 init_timer(&hwif->timer);
1178 hwif->timer.function = &ide_timer_expiry;
1179 hwif->timer.data = (unsigned long)hwif;
1180
1320 init_completion(&hwif->gendev_rel_comp); 1181 init_completion(&hwif->gendev_rel_comp);
1321 1182
1322 hwif->tp_ops = &default_tp_ops; 1183 hwif->tp_ops = &default_tp_ops;
@@ -1567,7 +1428,7 @@ int ide_host_register(struct ide_host *host, const struct ide_port_info *d,
1567 1428
1568 j++; 1429 j++;
1569 1430
1570 ide_acpi_init(hwif); 1431 ide_acpi_init_port(hwif);
1571 1432
1572 if (hwif->present) 1433 if (hwif->present)
1573 ide_acpi_port_init_devices(hwif); 1434 ide_acpi_port_init_devices(hwif);
@@ -1624,11 +1485,9 @@ static void __ide_port_unregister_devices(ide_hwif_t *hwif)
1624 ide_drive_t *drive; 1485 ide_drive_t *drive;
1625 int i; 1486 int i;
1626 1487
1627 ide_port_for_each_dev(i, drive, hwif) { 1488 ide_port_for_each_present_dev(i, drive, hwif) {
1628 if (drive->dev_flags & IDE_DFLAG_PRESENT) { 1489 device_unregister(&drive->gendev);
1629 device_unregister(&drive->gendev); 1490 wait_for_completion(&drive->gendev_rel_comp);
1630 wait_for_completion(&drive->gendev_rel_comp);
1631 }
1632 } 1491 }
1633} 1492}
1634 1493
diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c
index a7b9287ee0d4..417cde56eafd 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)
600 int i; 600 int i;
601 601
602 ide_port_for_each_dev(i, drive, hwif) { 602 ide_port_for_each_dev(i, drive, hwif) {
603 if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0 || drive->proc) 603 if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
604 continue; 604 continue;
605 605
606 drive->proc = proc_mkdir(drive->name, parent); 606 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 000000000000..6910f6a257e8
--- /dev/null
+++ b/drivers/ide/ide-xfer-mode.c
@@ -0,0 +1,246 @@
1#include <linux/types.h>
2#include <linux/string.h>
3#include <linux/kernel.h>
4#include <linux/interrupt.h>
5#include <linux/ide.h>
6#include <linux/bitops.h>
7
8static const char *udma_str[] =
9 { "UDMA/16", "UDMA/25", "UDMA/33", "UDMA/44",
10 "UDMA/66", "UDMA/100", "UDMA/133", "UDMA7" };
11static const char *mwdma_str[] =
12 { "MWDMA0", "MWDMA1", "MWDMA2" };
13static const char *swdma_str[] =
14 { "SWDMA0", "SWDMA1", "SWDMA2" };
15static const char *pio_str[] =
16 { "PIO0", "PIO1", "PIO2", "PIO3", "PIO4", "PIO5" };
17
18/**
19 * ide_xfer_verbose - return IDE mode names
20 * @mode: transfer mode
21 *
22 * Returns a constant string giving the name of the mode
23 * requested.
24 */
25
26const char *ide_xfer_verbose(u8 mode)
27{
28 const char *s;
29 u8 i = mode & 0xf;
30
31 if (mode >= XFER_UDMA_0 && mode <= XFER_UDMA_7)
32 s = udma_str[i];
33 else if (mode >= XFER_MW_DMA_0 && mode <= XFER_MW_DMA_2)
34 s = mwdma_str[i];
35 else if (mode >= XFER_SW_DMA_0 && mode <= XFER_SW_DMA_2)
36 s = swdma_str[i];
37 else if (mode >= XFER_PIO_0 && mode <= XFER_PIO_5)
38 s = pio_str[i & 0x7];
39 else if (mode == XFER_PIO_SLOW)
40 s = "PIO SLOW";
41 else
42 s = "XFER ERROR";
43
44 return s;
45}
46EXPORT_SYMBOL(ide_xfer_verbose);
47
48/**
49 * ide_get_best_pio_mode - get PIO mode from drive
50 * @drive: drive to consider
51 * @mode_wanted: preferred mode
52 * @max_mode: highest allowed mode
53 *
54 * This routine returns the recommended PIO settings for a given drive,
55 * based on the drive->id information and the ide_pio_blacklist[].
56 *
57 * Drive PIO mode is auto-selected if 255 is passed as mode_wanted.
58 * This is used by most chipset support modules when "auto-tuning".
59 */
60
61u8 ide_get_best_pio_mode(ide_drive_t *drive, u8 mode_wanted, u8 max_mode)
62{
63 u16 *id = drive->id;
64 int pio_mode = -1, overridden = 0;
65
66 if (mode_wanted != 255)
67 return min_t(u8, mode_wanted, max_mode);
68
69 if ((drive->hwif->host_flags & IDE_HFLAG_PIO_NO_BLACKLIST) == 0)
70 pio_mode = ide_scan_pio_blacklist((char *)&id[ATA_ID_PROD]);
71
72 if (pio_mode != -1) {
73 printk(KERN_INFO "%s: is on PIO blacklist\n", drive->name);
74 } else {
75 pio_mode = id[ATA_ID_OLD_PIO_MODES] >> 8;
76 if (pio_mode > 2) { /* 2 is maximum allowed tPIO value */
77 pio_mode = 2;
78 overridden = 1;
79 }
80
81 if (id[ATA_ID_FIELD_VALID] & 2) { /* ATA2? */
82 if (ata_id_has_iordy(id)) {
83 if (id[ATA_ID_PIO_MODES] & 7) {
84 overridden = 0;
85 if (id[ATA_ID_PIO_MODES] & 4)
86 pio_mode = 5;
87 else if (id[ATA_ID_PIO_MODES] & 2)
88 pio_mode = 4;
89 else
90 pio_mode = 3;
91 }
92 }
93 }
94
95 if (overridden)
96 printk(KERN_INFO "%s: tPIO > 2, assuming tPIO = 2\n",
97 drive->name);
98 }
99
100 if (pio_mode > max_mode)
101 pio_mode = max_mode;
102
103 return pio_mode;
104}
105EXPORT_SYMBOL_GPL(ide_get_best_pio_mode);
106
107int ide_set_pio_mode(ide_drive_t *drive, const u8 mode)
108{
109 ide_hwif_t *hwif = drive->hwif;
110 const struct ide_port_ops *port_ops = hwif->port_ops;
111
112 if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)
113 return 0;
114
115 if (port_ops == NULL || port_ops->set_pio_mode == NULL)
116 return -1;
117
118 /*
119 * TODO: temporary hack for some legacy host drivers that didn't
120 * set transfer mode on the device in ->set_pio_mode method...
121 */
122 if (port_ops->set_dma_mode == NULL) {
123 port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
124 return 0;
125 }
126
127 if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) {
128 if (ide_config_drive_speed(drive, mode))
129 return -1;
130 port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
131 return 0;
132 } else {
133 port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
134 return ide_config_drive_speed(drive, mode);
135 }
136}
137
138int ide_set_dma_mode(ide_drive_t *drive, const u8 mode)
139{
140 ide_hwif_t *hwif = drive->hwif;
141 const struct ide_port_ops *port_ops = hwif->port_ops;
142
143 if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)
144 return 0;
145
146 if (port_ops == NULL || port_ops->set_dma_mode == NULL)
147 return -1;
148
149 if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) {
150 if (ide_config_drive_speed(drive, mode))
151 return -1;
152 port_ops->set_dma_mode(drive, mode);
153 return 0;
154 } else {
155 port_ops->set_dma_mode(drive, mode);
156 return ide_config_drive_speed(drive, mode);
157 }
158}
159EXPORT_SYMBOL_GPL(ide_set_dma_mode);
160
161/* req_pio == "255" for auto-tune */
162void ide_set_pio(ide_drive_t *drive, u8 req_pio)
163{
164 ide_hwif_t *hwif = drive->hwif;
165 const struct ide_port_ops *port_ops = hwif->port_ops;
166 u8 host_pio, pio;
167
168 if (port_ops == NULL || port_ops->set_pio_mode == NULL ||
169 (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
170 return;
171
172 BUG_ON(hwif->pio_mask == 0x00);
173
174 host_pio = fls(hwif->pio_mask) - 1;
175
176 pio = ide_get_best_pio_mode(drive, req_pio, host_pio);
177
178 /*
179 * TODO:
180 * - report device max PIO mode
181 * - check req_pio != 255 against device max PIO mode
182 */
183 printk(KERN_DEBUG "%s: host max PIO%d wanted PIO%d%s selected PIO%d\n",
184 drive->name, host_pio, req_pio,
185 req_pio == 255 ? "(auto-tune)" : "", pio);
186
187 (void)ide_set_pio_mode(drive, XFER_PIO_0 + pio);
188}
189EXPORT_SYMBOL_GPL(ide_set_pio);
190
191/**
192 * ide_rate_filter - filter transfer mode
193 * @drive: IDE device
194 * @speed: desired speed
195 *
196 * Given the available transfer modes this function returns
197 * the best available speed at or below the speed requested.
198 *
199 * TODO: check device PIO capabilities
200 */
201
202static u8 ide_rate_filter(ide_drive_t *drive, u8 speed)
203{
204 ide_hwif_t *hwif = drive->hwif;
205 u8 mode = ide_find_dma_mode(drive, speed);
206
207 if (mode == 0) {
208 if (hwif->pio_mask)
209 mode = fls(hwif->pio_mask) - 1 + XFER_PIO_0;
210 else
211 mode = XFER_PIO_4;
212 }
213
214/* printk("%s: mode 0x%02x, speed 0x%02x\n", __func__, mode, speed); */
215
216 return min(speed, mode);
217}
218
219/**
220 * ide_set_xfer_rate - set transfer rate
221 * @drive: drive to set
222 * @rate: speed to attempt to set
223 *
224 * General helper for setting the speed of an IDE device. This
225 * function knows about user enforced limits from the configuration
226 * which ->set_pio_mode/->set_dma_mode does not.
227 */
228
229int ide_set_xfer_rate(ide_drive_t *drive, u8 rate)
230{
231 ide_hwif_t *hwif = drive->hwif;
232 const struct ide_port_ops *port_ops = hwif->port_ops;
233
234 if (port_ops == NULL || port_ops->set_dma_mode == NULL ||
235 (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
236 return -1;
237
238 rate = ide_rate_filter(drive, rate);
239
240 BUG_ON(rate < XFER_PIO_0);
241
242 if (rate >= XFER_PIO_0 && rate <= XFER_PIO_5)
243 return ide_set_pio_mode(drive, rate);
244
245 return ide_set_dma_mode(drive, rate);
246}
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 0920e3b0c962..92c9b90931e7 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -62,160 +62,6 @@
62 62
63struct class *ide_port_class; 63struct class *ide_port_class;
64 64
65/*
66 * Locks for IDE setting functionality
67 */
68
69DEFINE_MUTEX(ide_setting_mtx);
70
71ide_devset_get(io_32bit, io_32bit);
72
73static int set_io_32bit(ide_drive_t *drive, int arg)
74{
75 if (drive->dev_flags & IDE_DFLAG_NO_IO_32BIT)
76 return -EPERM;
77
78 if (arg < 0 || arg > 1 + (SUPPORT_VLB_SYNC << 1))
79 return -EINVAL;
80
81 drive->io_32bit = arg;
82
83 return 0;
84}
85
86ide_devset_get_flag(ksettings, IDE_DFLAG_KEEP_SETTINGS);
87
88static int set_ksettings(ide_drive_t *drive, int arg)
89{
90 if (arg < 0 || arg > 1)
91 return -EINVAL;
92
93 if (arg)
94 drive->dev_flags |= IDE_DFLAG_KEEP_SETTINGS;
95 else
96 drive->dev_flags &= ~IDE_DFLAG_KEEP_SETTINGS;
97
98 return 0;
99}
100
101ide_devset_get_flag(using_dma, IDE_DFLAG_USING_DMA);
102
103static int set_using_dma(ide_drive_t *drive, int arg)
104{
105#ifdef CONFIG_BLK_DEV_IDEDMA
106 int err = -EPERM;
107
108 if (arg < 0 || arg > 1)
109 return -EINVAL;
110
111 if (ata_id_has_dma(drive->id) == 0)
112 goto out;
113
114 if (drive->hwif->dma_ops == NULL)
115 goto out;
116
117 err = 0;
118
119 if (arg) {
120 if (ide_set_dma(drive))
121 err = -EIO;
122 } else
123 ide_dma_off(drive);
124
125out:
126 return err;
127#else
128 if (arg < 0 || arg > 1)
129 return -EINVAL;
130
131 return -EPERM;
132#endif
133}
134
135/*
136 * handle HDIO_SET_PIO_MODE ioctl abusers here, eventually it will go away
137 */
138static int set_pio_mode_abuse(ide_hwif_t *hwif, u8 req_pio)
139{
140 switch (req_pio) {
141 case 202:
142 case 201:
143 case 200:
144 case 102:
145 case 101:
146 case 100:
147 return (hwif->host_flags & IDE_HFLAG_ABUSE_DMA_MODES) ? 1 : 0;
148 case 9:
149 case 8:
150 return (hwif->host_flags & IDE_HFLAG_ABUSE_PREFETCH) ? 1 : 0;
151 case 7:
152 case 6:
153 return (hwif->host_flags & IDE_HFLAG_ABUSE_FAST_DEVSEL) ? 1 : 0;
154 default:
155 return 0;
156 }
157}
158
159static int set_pio_mode(ide_drive_t *drive, int arg)
160{
161 ide_hwif_t *hwif = drive->hwif;
162 const struct ide_port_ops *port_ops = hwif->port_ops;
163
164 if (arg < 0 || arg > 255)
165 return -EINVAL;
166
167 if (port_ops == NULL || port_ops->set_pio_mode == NULL ||
168 (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
169 return -ENOSYS;
170
171 if (set_pio_mode_abuse(drive->hwif, arg)) {
172 if (arg == 8 || arg == 9) {
173 unsigned long flags;
174
175 /* take lock for IDE_DFLAG_[NO_]UNMASK/[NO_]IO_32BIT */
176 spin_lock_irqsave(&hwif->lock, flags);
177 port_ops->set_pio_mode(drive, arg);
178 spin_unlock_irqrestore(&hwif->lock, flags);
179 } else
180 port_ops->set_pio_mode(drive, arg);
181 } else {
182 int keep_dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
183
184 ide_set_pio(drive, arg);
185
186 if (hwif->host_flags & IDE_HFLAG_SET_PIO_MODE_KEEP_DMA) {
187 if (keep_dma)
188 ide_dma_on(drive);
189 }
190 }
191
192 return 0;
193}
194
195ide_devset_get_flag(unmaskirq, IDE_DFLAG_UNMASK);
196
197static int set_unmaskirq(ide_drive_t *drive, int arg)
198{
199 if (drive->dev_flags & IDE_DFLAG_NO_UNMASK)
200 return -EPERM;
201
202 if (arg < 0 || arg > 1)
203 return -EINVAL;
204
205 if (arg)
206 drive->dev_flags |= IDE_DFLAG_UNMASK;
207 else
208 drive->dev_flags &= ~IDE_DFLAG_UNMASK;
209
210 return 0;
211}
212
213ide_ext_devset_rw_sync(io_32bit, io_32bit);
214ide_ext_devset_rw_sync(keepsettings, ksettings);
215ide_ext_devset_rw_sync(unmaskirq, unmaskirq);
216ide_ext_devset_rw_sync(using_dma, using_dma);
217__IDE_DEVSET(pio_mode, DS_SYNC, NULL, set_pio_mode);
218
219/** 65/**
220 * ide_device_get - get an additional reference to a ide_drive_t 66 * ide_device_get - get an additional reference to a ide_drive_t
221 * @drive: device to get a reference to 67 * @drive: device to get a reference to
@@ -527,6 +373,8 @@ static int __init ide_init(void)
527 goto out_port_class; 373 goto out_port_class;
528 } 374 }
529 375
376 ide_acpi_init();
377
530 proc_ide_create(); 378 proc_ide_create();
531 379
532 return 0; 380 return 0;
diff --git a/drivers/ide/it821x.c b/drivers/ide/it821x.c
index 13b8153112ed..6b9fc950b4af 100644
--- a/drivers/ide/it821x.c
+++ b/drivers/ide/it821x.c
@@ -603,7 +603,7 @@ static void it8212_disable_raid(struct pci_dev *dev)
603 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20); 603 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20);
604} 604}
605 605
606static unsigned int init_chipset_it821x(struct pci_dev *dev) 606static int init_chipset_it821x(struct pci_dev *dev)
607{ 607{
608 u8 conf; 608 u8 conf;
609 static char *mode[2] = { "pass through", "smart" }; 609 static char *mode[2] = { "pass through", "smart" };
diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c
index 83643ed9a426..ea48a3ee8063 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)
286 } 286 }
287 287
288 if (!using_inta) 288 if (!using_inta)
289 hwif->irq = __ide_default_irq(hwif->io_ports.data_addr); 289 hwif->irq = pci_get_legacy_ide_irq(dev, hwif->channel);
290 else if (!hwif->irq && hwif->mate && hwif->mate->irq)
291 hwif->irq = hwif->mate->irq; /* share IRQ with mate */
292 290
293 if (!hwif->dma_base) 291 if (!hwif->dma_base)
294 return; 292 return;
diff --git a/drivers/ide/pdc202xx_new.c b/drivers/ide/pdc202xx_new.c
index f21290c4b447..b68906c3c17e 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)
325} 325}
326#endif /* CONFIG_PPC_PMAC */ 326#endif /* CONFIG_PPC_PMAC */
327 327
328static unsigned int init_chipset_pdcnew(struct pci_dev *dev) 328static int init_chipset_pdcnew(struct pci_dev *dev)
329{ 329{
330 const char *name = DRV_NAME; 330 const char *name = DRV_NAME;
331 unsigned long dma_base = pci_resource_start(dev, 4); 331 unsigned long dma_base = pci_resource_start(dev, 4);
@@ -444,7 +444,7 @@ static unsigned int init_chipset_pdcnew(struct pci_dev *dev)
444#endif 444#endif
445 445
446 out: 446 out:
447 return dev->irq; 447 return 0;
448} 448}
449 449
450static struct pci_dev * __devinit pdc20270_get_dev2(struct pci_dev *dev) 450static 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 97193323aebf..cba66ebce4e3 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)
264 ide_dma_timeout(drive); 264 ide_dma_timeout(drive);
265} 265}
266 266
267static unsigned int init_chipset_pdc202xx(struct pci_dev *dev) 267static int init_chipset_pdc202xx(struct pci_dev *dev)
268{ 268{
269 unsigned long dmabase = pci_resource_start(dev, 4); 269 unsigned long dmabase = pci_resource_start(dev, 4);
270 u8 udma_speed_flag = 0, primary_mode = 0, secondary_mode = 0; 270 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)
290 printk("%sACTIVE\n", (inb(dmabase | 0x1f) & 1) ? "" : "IN"); 290 printk("%sACTIVE\n", (inb(dmabase | 0x1f) & 1) ? "" : "IN");
291 } 291 }
292out: 292out:
293 return dev->irq; 293 return 0;
294} 294}
295 295
296static void __devinit pdc202ata4_fixup_irq(struct pci_dev *dev, 296static void __devinit pdc202ata4_fixup_irq(struct pci_dev *dev,
diff --git a/drivers/ide/piix.c b/drivers/ide/piix.c
index f1e2e4ef0d71..2aa699933064 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)
204 * out to be nice and simple. 204 * out to be nice and simple.
205 */ 205 */
206 206
207static unsigned int init_chipset_ich(struct pci_dev *dev) 207static int init_chipset_ich(struct pci_dev *dev)
208{ 208{
209 u32 extra = 0; 209 u32 extra = 0;
210 210
@@ -318,19 +318,12 @@ static const struct ide_port_ops ich_port_ops = {
318 .cable_detect = piix_cable_detect, 318 .cable_detect = piix_cable_detect,
319}; 319};
320 320
321#ifndef CONFIG_IA64
322 #define IDE_HFLAGS_PIIX IDE_HFLAG_LEGACY_IRQS
323#else
324 #define IDE_HFLAGS_PIIX 0
325#endif
326
327#define DECLARE_PIIX_DEV(udma) \ 321#define DECLARE_PIIX_DEV(udma) \
328 { \ 322 { \
329 .name = DRV_NAME, \ 323 .name = DRV_NAME, \
330 .init_hwif = init_hwif_piix, \ 324 .init_hwif = init_hwif_piix, \
331 .enablebits = {{0x41,0x80,0x80}, {0x43,0x80,0x80}}, \ 325 .enablebits = {{0x41,0x80,0x80}, {0x43,0x80,0x80}}, \
332 .port_ops = &piix_port_ops, \ 326 .port_ops = &piix_port_ops, \
333 .host_flags = IDE_HFLAGS_PIIX, \
334 .pio_mask = ATA_PIO4, \ 327 .pio_mask = ATA_PIO4, \
335 .swdma_mask = ATA_SWDMA2_ONLY, \ 328 .swdma_mask = ATA_SWDMA2_ONLY, \
336 .mwdma_mask = ATA_MWDMA12_ONLY, \ 329 .mwdma_mask = ATA_MWDMA12_ONLY, \
@@ -344,7 +337,6 @@ static const struct ide_port_ops ich_port_ops = {
344 .init_hwif = init_hwif_piix, \ 337 .init_hwif = init_hwif_piix, \
345 .enablebits = {{0x41,0x80,0x80}, {0x43,0x80,0x80}}, \ 338 .enablebits = {{0x41,0x80,0x80}, {0x43,0x80,0x80}}, \
346 .port_ops = &ich_port_ops, \ 339 .port_ops = &ich_port_ops, \
347 .host_flags = IDE_HFLAGS_PIIX, \
348 .pio_mask = ATA_PIO4, \ 340 .pio_mask = ATA_PIO4, \
349 .swdma_mask = ATA_SWDMA2_ONLY, \ 341 .swdma_mask = ATA_SWDMA2_ONLY, \
350 .mwdma_mask = ATA_MWDMA12_ONLY, \ 342 .mwdma_mask = ATA_MWDMA12_ONLY, \
@@ -360,8 +352,7 @@ static const struct ide_port_info piix_pci_info[] __devinitdata = {
360 */ 352 */
361 .name = DRV_NAME, 353 .name = DRV_NAME,
362 .enablebits = {{0x6d,0xc0,0x80}, {0x6d,0xc0,0xc0}}, 354 .enablebits = {{0x6d,0xc0,0x80}, {0x6d,0xc0,0xc0}},
363 .host_flags = IDE_HFLAG_ISA_PORTS | IDE_HFLAG_NO_DMA | 355 .host_flags = IDE_HFLAG_ISA_PORTS | IDE_HFLAG_NO_DMA,
364 IDE_HFLAGS_PIIX,
365 .pio_mask = ATA_PIO4, 356 .pio_mask = ATA_PIO4,
366 /* This is a painful system best to let it self tune for now */ 357 /* This is a painful system best to let it self tune for now */
367 }, 358 },
diff --git a/drivers/ide/serverworks.c b/drivers/ide/serverworks.c
index 382102ba467b..b6554ef92716 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)
175 pci_write_config_byte(dev, 0x54, ultra_enable); 175 pci_write_config_byte(dev, 0x54, ultra_enable);
176} 176}
177 177
178static unsigned int init_chipset_svwks(struct pci_dev *dev) 178static int init_chipset_svwks(struct pci_dev *dev)
179{ 179{
180 unsigned int reg; 180 unsigned int reg;
181 u8 btr; 181 u8 btr;
@@ -270,7 +270,7 @@ static unsigned int init_chipset_svwks(struct pci_dev *dev)
270 pci_write_config_byte(dev, 0x5A, btr); 270 pci_write_config_byte(dev, 0x5A, btr);
271 } 271 }
272 272
273 return dev->irq; 273 return 0;
274} 274}
275 275
276static u8 ata66_svwks_svwks(ide_hwif_t *hwif) 276static u8 ata66_svwks_svwks(ide_hwif_t *hwif)
@@ -353,14 +353,11 @@ static const struct ide_port_ops svwks_port_ops = {
353 .cable_detect = svwks_cable_detect, 353 .cable_detect = svwks_cable_detect,
354}; 354};
355 355
356#define IDE_HFLAGS_SVWKS IDE_HFLAG_LEGACY_IRQS
357
358static const struct ide_port_info serverworks_chipsets[] __devinitdata = { 356static const struct ide_port_info serverworks_chipsets[] __devinitdata = {
359 { /* 0: OSB4 */ 357 { /* 0: OSB4 */
360 .name = DRV_NAME, 358 .name = DRV_NAME,
361 .init_chipset = init_chipset_svwks, 359 .init_chipset = init_chipset_svwks,
362 .port_ops = &osb4_port_ops, 360 .port_ops = &osb4_port_ops,
363 .host_flags = IDE_HFLAGS_SVWKS,
364 .pio_mask = ATA_PIO4, 361 .pio_mask = ATA_PIO4,
365 .mwdma_mask = ATA_MWDMA2, 362 .mwdma_mask = ATA_MWDMA2,
366 .udma_mask = 0x00, /* UDMA is problematic on OSB4 */ 363 .udma_mask = 0x00, /* UDMA is problematic on OSB4 */
@@ -369,7 +366,6 @@ static const struct ide_port_info serverworks_chipsets[] __devinitdata = {
369 .name = DRV_NAME, 366 .name = DRV_NAME,
370 .init_chipset = init_chipset_svwks, 367 .init_chipset = init_chipset_svwks,
371 .port_ops = &svwks_port_ops, 368 .port_ops = &svwks_port_ops,
372 .host_flags = IDE_HFLAGS_SVWKS,
373 .pio_mask = ATA_PIO4, 369 .pio_mask = ATA_PIO4,
374 .mwdma_mask = ATA_MWDMA2, 370 .mwdma_mask = ATA_MWDMA2,
375 .udma_mask = ATA_UDMA5, 371 .udma_mask = ATA_UDMA5,
@@ -378,7 +374,6 @@ static const struct ide_port_info serverworks_chipsets[] __devinitdata = {
378 .name = DRV_NAME, 374 .name = DRV_NAME,
379 .init_chipset = init_chipset_svwks, 375 .init_chipset = init_chipset_svwks,
380 .port_ops = &svwks_port_ops, 376 .port_ops = &svwks_port_ops,
381 .host_flags = IDE_HFLAGS_SVWKS,
382 .pio_mask = ATA_PIO4, 377 .pio_mask = ATA_PIO4,
383 .mwdma_mask = ATA_MWDMA2, 378 .mwdma_mask = ATA_MWDMA2,
384 .udma_mask = ATA_UDMA5, 379 .udma_mask = ATA_UDMA5,
@@ -387,7 +382,7 @@ static const struct ide_port_info serverworks_chipsets[] __devinitdata = {
387 .name = DRV_NAME, 382 .name = DRV_NAME,
388 .init_chipset = init_chipset_svwks, 383 .init_chipset = init_chipset_svwks,
389 .port_ops = &svwks_port_ops, 384 .port_ops = &svwks_port_ops,
390 .host_flags = IDE_HFLAGS_SVWKS | IDE_HFLAG_SINGLE, 385 .host_flags = IDE_HFLAG_SINGLE,
391 .pio_mask = ATA_PIO4, 386 .pio_mask = ATA_PIO4,
392 .mwdma_mask = ATA_MWDMA2, 387 .mwdma_mask = ATA_MWDMA2,
393 .udma_mask = ATA_UDMA5, 388 .udma_mask = ATA_UDMA5,
@@ -396,7 +391,7 @@ static const struct ide_port_info serverworks_chipsets[] __devinitdata = {
396 .name = DRV_NAME, 391 .name = DRV_NAME,
397 .init_chipset = init_chipset_svwks, 392 .init_chipset = init_chipset_svwks,
398 .port_ops = &svwks_port_ops, 393 .port_ops = &svwks_port_ops,
399 .host_flags = IDE_HFLAGS_SVWKS | IDE_HFLAG_SINGLE, 394 .host_flags = IDE_HFLAG_SINGLE,
400 .pio_mask = ATA_PIO4, 395 .pio_mask = ATA_PIO4,
401 .mwdma_mask = ATA_MWDMA2, 396 .mwdma_mask = ATA_MWDMA2,
402 .udma_mask = ATA_UDMA5, 397 .udma_mask = ATA_UDMA5,
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index e85d1ed29c2a..24bc884826fc 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 *
305 * @dev: PCI device holding interface 305 * @dev: PCI device holding interface
306 * @d: IDE port info 306 * @d: IDE port info
307 * @port: port number 307 * @port: port number
308 * @irq: PCI IRQ
309 * @hw: hw_regs_t instance corresponding to this port 308 * @hw: hw_regs_t instance corresponding to this port
310 * 309 *
311 * Perform the initial set up for the hardware interface structure. This 310 * 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 *
316 */ 315 */
317 316
318static int ide_hw_configure(struct pci_dev *dev, const struct ide_port_info *d, 317static int ide_hw_configure(struct pci_dev *dev, const struct ide_port_info *d,
319 unsigned int port, int irq, hw_regs_t *hw) 318 unsigned int port, hw_regs_t *hw)
320{ 319{
321 unsigned long ctl = 0, base = 0; 320 unsigned long ctl = 0, base = 0;
322 321
@@ -344,7 +343,6 @@ static int ide_hw_configure(struct pci_dev *dev, const struct ide_port_info *d,
344 } 343 }
345 344
346 memset(hw, 0, sizeof(*hw)); 345 memset(hw, 0, sizeof(*hw));
347 hw->irq = irq;
348 hw->dev = &dev->dev; 346 hw->dev = &dev->dev;
349 hw->chipset = d->chipset ? d->chipset : ide_pci; 347 hw->chipset = d->chipset ? d->chipset : ide_pci;
350 ide_std_init_ports(hw, base, ctl | 2); 348 ide_std_init_ports(hw, base, ctl | 2);
@@ -448,7 +446,6 @@ out:
448 * ide_pci_setup_ports - configure ports/devices on PCI IDE 446 * ide_pci_setup_ports - configure ports/devices on PCI IDE
449 * @dev: PCI device 447 * @dev: PCI device
450 * @d: IDE port info 448 * @d: IDE port info
451 * @pciirq: IRQ line
452 * @hw: hw_regs_t instances corresponding to this PCI IDE device 449 * @hw: hw_regs_t instances corresponding to this PCI IDE device
453 * @hws: hw_regs_t pointers table to update 450 * @hws: hw_regs_t pointers table to update
454 * 451 *
@@ -462,7 +459,7 @@ out:
462 */ 459 */
463 460
464void ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d, 461void ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d,
465 int pciirq, hw_regs_t *hw, hw_regs_t **hws) 462 hw_regs_t *hw, hw_regs_t **hws)
466{ 463{
467 int channels = (d->host_flags & IDE_HFLAG_SINGLE) ? 1 : 2, port; 464 int channels = (d->host_flags & IDE_HFLAG_SINGLE) ? 1 : 2, port;
468 u8 tmp; 465 u8 tmp;
@@ -481,7 +478,7 @@ void ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d,
481 continue; /* port not enabled */ 478 continue; /* port not enabled */
482 } 479 }
483 480
484 if (ide_hw_configure(dev, d, port, pciirq, hw + port)) 481 if (ide_hw_configure(dev, d, port, hw + port))
485 continue; 482 continue;
486 483
487 *(hws + port) = hw + port; 484 *(hws + port) = hw + port;
@@ -524,7 +521,7 @@ static int do_ide_setup_pci_device(struct pci_dev *dev,
524 if (noisy) 521 if (noisy)
525 printk(KERN_INFO "%s %s: not 100%% native mode: will " 522 printk(KERN_INFO "%s %s: not 100%% native mode: will "
526 "probe irqs later\n", d->name, pci_name(dev)); 523 "probe irqs later\n", d->name, pci_name(dev));
527 pciirq = ret; 524 pciirq = 0;
528 } else if (!pciirq && noisy) { 525 } else if (!pciirq && noisy) {
529 printk(KERN_WARNING "%s %s: bad irq (%d): will probe later\n", 526 printk(KERN_WARNING "%s %s: bad irq (%d): will probe later\n",
530 d->name, pci_name(dev), pciirq); 527 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,
549 if (ret < 0) 546 if (ret < 0)
550 goto out; 547 goto out;
551 548
552 ide_pci_setup_ports(dev, d, 0, &hw[0], &hws[0]); 549 ide_pci_setup_ports(dev, d, &hw[0], &hws[0]);
553 550
554 host = ide_host_alloc(d, hws); 551 host = ide_host_alloc(d, hws);
555 if (host == NULL) { 552 if (host == NULL) {
@@ -568,7 +565,11 @@ int ide_pci_init_one(struct pci_dev *dev, const struct ide_port_info *d,
568 goto out; 565 goto out;
569 566
570 /* fixup IRQ */ 567 /* fixup IRQ */
571 hw[1].irq = hw[0].irq = ret; 568 if (ide_pci_is_in_compatibility_mode(dev)) {
569 hw[0].irq = pci_get_legacy_ide_irq(dev, 0);
570 hw[1].irq = pci_get_legacy_ide_irq(dev, 1);
571 } else
572 hw[1].irq = hw[0].irq = ret;
572 573
573 ret = ide_host_register(host, d, hws); 574 ret = ide_host_register(host, d, hws);
574 if (ret) 575 if (ret)
@@ -591,7 +592,7 @@ int ide_pci_init_two(struct pci_dev *dev1, struct pci_dev *dev2,
591 if (ret < 0) 592 if (ret < 0)
592 goto out; 593 goto out;
593 594
594 ide_pci_setup_ports(pdev[i], d, 0, &hw[i*2], &hws[i*2]); 595 ide_pci_setup_ports(pdev[i], d, &hw[i*2], &hws[i*2]);
595 } 596 }
596 597
597 host = ide_host_alloc(d, hws); 598 host = ide_host_alloc(d, hws);
@@ -619,7 +620,11 @@ int ide_pci_init_two(struct pci_dev *dev1, struct pci_dev *dev2,
619 goto out; 620 goto out;
620 621
621 /* fixup IRQ */ 622 /* fixup IRQ */
622 hw[i*2 + 1].irq = hw[i*2].irq = ret; 623 if (ide_pci_is_in_compatibility_mode(pdev[i])) {
624 hw[i*2].irq = pci_get_legacy_ide_irq(pdev[i], 0);
625 hw[i*2 + 1].irq = pci_get_legacy_ide_irq(pdev[i], 1);
626 } else
627 hw[i*2 + 1].irq = hw[i*2].irq = ret;
623 } 628 }
624 629
625 ret = ide_host_register(host, d, hws); 630 ret = ide_host_register(host, d, hws);
diff --git a/drivers/ide/siimage.c b/drivers/ide/siimage.c
index cb2b352b876b..1811ae9cd843 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)
464 * to 133 MHz clocking if the system isn't already set up to do it. 464 * to 133 MHz clocking if the system isn't already set up to do it.
465 */ 465 */
466 466
467static unsigned int init_chipset_siimage(struct pci_dev *dev) 467static int init_chipset_siimage(struct pci_dev *dev)
468{ 468{
469 struct ide_host *host = pci_get_drvdata(dev); 469 struct ide_host *host = pci_get_drvdata(dev);
470 void __iomem *ioaddr = host->host_priv; 470 void __iomem *ioaddr = host->host_priv;
diff --git a/drivers/ide/sis5513.c b/drivers/ide/sis5513.c
index 9ec1a4a4432c..afca22beaadf 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)
447 return chipset_family; 447 return chipset_family;
448} 448}
449 449
450static unsigned int init_chipset_sis5513(struct pci_dev *dev) 450static int init_chipset_sis5513(struct pci_dev *dev)
451{ 451{
452 /* Make general config ops here 452 /* Make general config ops here
453 1/ tell IDE channels to operate in Compatibility mode only 453 1/ tell IDE channels to operate in Compatibility mode only
@@ -563,7 +563,7 @@ static const struct ide_port_info sis5513_chipset __devinitdata = {
563 .name = DRV_NAME, 563 .name = DRV_NAME,
564 .init_chipset = init_chipset_sis5513, 564 .init_chipset = init_chipset_sis5513,
565 .enablebits = { {0x4a, 0x02, 0x02}, {0x4a, 0x04, 0x04} }, 565 .enablebits = { {0x4a, 0x02, 0x02}, {0x4a, 0x04, 0x04} },
566 .host_flags = IDE_HFLAG_LEGACY_IRQS | IDE_HFLAG_NO_AUTODMA, 566 .host_flags = IDE_HFLAG_NO_AUTODMA,
567 .pio_mask = ATA_PIO4, 567 .pio_mask = ATA_PIO4,
568 .mwdma_mask = ATA_MWDMA2, 568 .mwdma_mask = ATA_MWDMA2,
569}; 569};
diff --git a/drivers/ide/sl82c105.c b/drivers/ide/sl82c105.c
index 6297956507c0..dba213c51baa 100644
--- a/drivers/ide/sl82c105.c
+++ b/drivers/ide/sl82c105.c
@@ -271,7 +271,7 @@ static u8 sl82c105_bridge_revision(struct pci_dev *dev)
271 * channel 0 here at least, but channel 1 has to be enabled by 271 * channel 0 here at least, but channel 1 has to be enabled by
272 * firmware or arch code. We still set both to 16 bits mode. 272 * firmware or arch code. We still set both to 16 bits mode.
273 */ 273 */
274static unsigned int init_chipset_sl82c105(struct pci_dev *dev) 274static int init_chipset_sl82c105(struct pci_dev *dev)
275{ 275{
276 u32 val; 276 u32 val;
277 277
@@ -281,7 +281,7 @@ static unsigned int init_chipset_sl82c105(struct pci_dev *dev)
281 val |= CTRL_P0EN | CTRL_P0F16 | CTRL_P1F16; 281 val |= CTRL_P0EN | CTRL_P0F16 | CTRL_P1F16;
282 pci_write_config_dword(dev, 0x40, val); 282 pci_write_config_dword(dev, 0x40, val);
283 283
284 return dev->irq; 284 return 0;
285} 285}
286 286
287static const struct ide_port_ops sl82c105_port_ops = { 287static const struct ide_port_ops sl82c105_port_ops = {
diff --git a/drivers/ide/slc90e66.c b/drivers/ide/slc90e66.c
index 40b4b94a4288..f55d7d6313e8 100644
--- a/drivers/ide/slc90e66.c
+++ b/drivers/ide/slc90e66.c
@@ -136,7 +136,6 @@ static const struct ide_port_info slc90e66_chipset __devinitdata = {
136 .name = DRV_NAME, 136 .name = DRV_NAME,
137 .enablebits = { {0x41, 0x80, 0x80}, {0x43, 0x80, 0x80} }, 137 .enablebits = { {0x41, 0x80, 0x80}, {0x43, 0x80, 0x80} },
138 .port_ops = &slc90e66_port_ops, 138 .port_ops = &slc90e66_port_ops,
139 .host_flags = IDE_HFLAG_LEGACY_IRQS,
140 .pio_mask = ATA_PIO4, 139 .pio_mask = ATA_PIO4,
141 .swdma_mask = ATA_SWDMA2_ONLY, 140 .swdma_mask = ATA_SWDMA2_ONLY,
142 .mwdma_mask = ATA_MWDMA12_ONLY, 141 .mwdma_mask = ATA_MWDMA12_ONLY,
diff --git a/drivers/ide/trm290.c b/drivers/ide/trm290.c
index b6a1285a4021..1c09e549c423 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)
277 if (reg & 0x10) 277 if (reg & 0x10)
278 /* legacy mode */ 278 /* legacy mode */
279 hwif->irq = hwif->channel ? 15 : 14; 279 hwif->irq = hwif->channel ? 15 : 14;
280 else if (!hwif->irq && hwif->mate && hwif->mate->irq)
281 /* sharing IRQ with mate */
282 hwif->irq = hwif->mate->irq;
283 280
284#if 1 281#if 1
285 { 282 {
diff --git a/drivers/ide/via82cxxx.c b/drivers/ide/via82cxxx.c
index 6092fe3f409d..3ff7231e4858 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)
267 * and initialize its drive independent registers. 267 * and initialize its drive independent registers.
268 */ 268 */
269 269
270static unsigned int init_chipset_via82cxxx(struct pci_dev *dev) 270static int init_chipset_via82cxxx(struct pci_dev *dev)
271{ 271{
272 struct ide_host *host = pci_get_drvdata(dev); 272 struct ide_host *host = pci_get_drvdata(dev);
273 struct via82cxxx_dev *vdev = host->host_priv; 273 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
443 if ((via_config->flags & VIA_NO_UNMASK) == 0) 443 if ((via_config->flags & VIA_NO_UNMASK) == 0)
444 d.host_flags |= IDE_HFLAG_UNMASK_IRQS; 444 d.host_flags |= IDE_HFLAG_UNMASK_IRQS;
445 445
446#ifdef CONFIG_PPC_CHRP
447 if (machine_is(chrp) && _chrp_type == _CHRP_Pegasos)
448 d.host_flags |= IDE_HFLAG_FORCE_LEGACY_IRQS;
449#endif
450
451#ifdef CONFIG_AMIGAONE
452 if (machine_is(amigaone))
453 d.host_flags |= IDE_HFLAG_FORCE_LEGACY_IRQS;
454#endif
455
456 d.udma_mask = via_config->udma_mask; 446 d.udma_mask = via_config->udma_mask;
457 447
458 vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); 448 vdev = kzalloc(sizeof(*vdev), GFP_KERNEL);
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-19 02:46:50 -0500