#include <linux/dmi.h>
#include <acpi/acpi_bus.h>
-#include <acpi/acnames.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acparser.h>
-#include <acpi/acexcep.h>
-#include <acpi/acmacros.h>
-#include <acpi/actypes.h>
#define REGS_PER_GTF 7
struct taskfile_array {
{ } /* terminate list */
};
-static int ide_acpi_blacklist(void)
+int ide_acpi_init(void)
{
- static int done;
- if (done)
- return 0;
- done = 1;
dmi_check_system(ide_acpi_dmi_table);
return 0;
}
return chan_handle;
}
-/**
- * ide_acpi_drive_get_handle - Get ACPI object handle for a given drive
- * @drive: device to locate
- *
- * Retrieves the object handle of a given drive. According to the ACPI
- * spec the drive is a child of the hwif.
- *
- * Returns handle on success, 0 on error.
- */
-static acpi_handle ide_acpi_drive_get_handle(ide_drive_t *drive)
-{
- ide_hwif_t *hwif = HWIF(drive);
- int port;
- acpi_handle drive_handle;
-
- if (!hwif->acpidata)
- return NULL;
-
- if (!hwif->acpidata->obj_handle)
- return NULL;
-
- port = hwif->channel ? drive->dn - 2: drive->dn;
-
- DEBPRINT("ENTER: %s at channel#: %d port#: %d\n",
- drive->name, hwif->channel, port);
-
-
- /* TBD: could also check ACPI object VALID bits */
- drive_handle = acpi_get_child(hwif->acpidata->obj_handle, port);
- DEBPRINT("drive %s handle 0x%p\n", drive->name, drive_handle);
-
- return drive_handle;
-}
-
/**
* do_drive_get_GTF - get the drive bootup default taskfile settings
* @drive: the drive for which the taskfile settings should be retrieved
acpi_status status;
struct acpi_buffer output;
union acpi_object *out_obj;
- ide_hwif_t *hwif = HWIF(drive);
- struct device *dev = hwif->gendev.parent;
int err = -ENODEV;
- int port;
*gtf_length = 0;
*gtf_address = 0UL;
*obj_loc = 0UL;
- if (ide_noacpi)
- return 0;
-
- if (!dev) {
- DEBPRINT("no PCI device for %s\n", hwif->name);
- goto out;
- }
-
- if (!hwif->acpidata) {
- DEBPRINT("no ACPI data for %s\n", hwif->name);
- goto out;
- }
-
- port = hwif->channel ? drive->dn - 2: drive->dn;
-
- DEBPRINT("ENTER: %s at %s, port#: %d, hard_port#: %d\n",
- hwif->name, dev->bus_id, port, hwif->channel);
-
- if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0) {
- DEBPRINT("%s drive %d:%d not present\n",
- hwif->name, hwif->channel, port);
- goto out;
- }
-
- /* Get this drive's _ADR info. if not already known. */
if (!drive->acpidata->obj_handle) {
- drive->acpidata->obj_handle = ide_acpi_drive_get_handle(drive);
- if (!drive->acpidata->obj_handle) {
- DEBPRINT("No ACPI object found for %s\n",
- drive->name);
- goto out;
- }
+ DEBPRINT("No ACPI object found for %s\n", drive->name);
+ goto out;
}
/* Setting up output buffer */
unsigned int gtf_length,
unsigned long gtf_address)
{
- int rc = -ENODEV, err;
+ int rc = 0, err;
int gtf_count = gtf_length / REGS_PER_GTF;
int ix;
struct taskfile_array *gtf;
- if (ide_noacpi)
- return 0;
-
- DEBPRINT("ENTER: %s, hard_port#: %d\n", drive->name, drive->dn);
-
- if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
- goto out;
-
- if (!gtf_count) /* shouldn't be here */
- goto out;
-
DEBPRINT("total GTF bytes=%u (0x%x), gtf_count=%d, addr=0x%lx\n",
gtf_length, gtf_length, gtf_count, gtf_address);
- if (gtf_length % REGS_PER_GTF) {
- printk(KERN_ERR "%s: unexpected GTF length (%d)\n",
- __func__, gtf_length);
- goto out;
- }
-
- rc = 0;
for (ix = 0; ix < gtf_count; ix++) {
gtf = (struct taskfile_array *)
(gtf_address + ix * REGS_PER_GTF);
rc = err;
}
-out:
return rc;
}
in_params[0].buffer.length = sizeof(struct GTM_buffer);
in_params[0].buffer.pointer = (u8 *)&hwif->acpidata->gtm;
in_params[1].type = ACPI_TYPE_BUFFER;
- in_params[1].buffer.length = sizeof(ATA_ID_WORDS * 2);
+ in_params[1].buffer.length = ATA_ID_WORDS * 2;
in_params[1].buffer.pointer = (u8 *)&master->idbuff;
in_params[2].type = ACPI_TYPE_BUFFER;
- in_params[2].buffer.length = sizeof(ATA_ID_WORDS * 2);
+ in_params[2].buffer.length = ATA_ID_WORDS * 2;
in_params[2].buffer.pointer = (u8 *)&slave->idbuff;
/* Output buffer: _STM has no output */
*/
void ide_acpi_set_state(ide_hwif_t *hwif, int on)
{
- int unit;
+ ide_drive_t *drive;
+ int i;
if (ide_noacpi || ide_noacpi_psx)
return;
DEBPRINT("no ACPI data for %s\n", hwif->name);
return;
}
+
/* channel first and then drives for power on and verse versa for power off */
if (on)
acpi_bus_set_power(hwif->acpidata->obj_handle, ACPI_STATE_D0);
- for (unit = 0; unit < MAX_DRIVES; ++unit) {
- ide_drive_t *drive = &hwif->drives[unit];
- if (!drive->acpidata->obj_handle)
- drive->acpidata->obj_handle = ide_acpi_drive_get_handle(drive);
-
- if (drive->acpidata->obj_handle &&
- (drive->dev_flags & IDE_DFLAG_PRESENT)) {
+ ide_port_for_each_present_dev(i, drive, hwif) {
+ if (drive->acpidata->obj_handle)
acpi_bus_set_power(drive->acpidata->obj_handle,
- on? ACPI_STATE_D0: ACPI_STATE_D3);
- }
+ on ? ACPI_STATE_D0 : ACPI_STATE_D3);
}
+
if (!on)
acpi_bus_set_power(hwif->acpidata->obj_handle, ACPI_STATE_D3);
}
/**
- * ide_acpi_init - initialize the ACPI link for an IDE interface
+ * ide_acpi_init_port - initialize the ACPI link for an IDE interface
* @hwif: target IDE interface (channel)
*
* The ACPI spec is not quite clear when the drive identify buffer
* So we get the information during startup; but this means that
* any changes during run-time will be lost after resume.
*/
-void ide_acpi_init(ide_hwif_t *hwif)
+void ide_acpi_init_port(ide_hwif_t *hwif)
{
- ide_acpi_blacklist();
-
hwif->acpidata = kzalloc(sizeof(struct ide_acpi_hwif_link), GFP_KERNEL);
if (!hwif->acpidata)
return;
* for both drives, regardless whether they are connected
* or not.
*/
- hwif->drives[0].acpidata = &hwif->acpidata->master;
- hwif->drives[1].acpidata = &hwif->acpidata->slave;
+ hwif->devices[0]->acpidata = &hwif->acpidata->master;
+ hwif->devices[1]->acpidata = &hwif->acpidata->slave;
- /*
- * Send IDENTIFY for each drive
- */
- for (i = 0; i < MAX_DRIVES; i++) {
- drive = &hwif->drives[i];
+ /* get _ADR info for each device */
+ ide_port_for_each_present_dev(i, drive, hwif) {
+ acpi_handle dev_handle;
+
+ DEBPRINT("ENTER: %s at channel#: %d port#: %d\n",
+ drive->name, hwif->channel, drive->dn & 1);
- memset(drive->acpidata, 0, sizeof(*drive->acpidata));
+ /* TBD: could also check ACPI object VALID bits */
+ dev_handle = acpi_get_child(hwif->acpidata->obj_handle,
+ drive->dn & 1);
- if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
- continue;
+ DEBPRINT("drive %s handle 0x%p\n", drive->name, dev_handle);
+ drive->acpidata->obj_handle = dev_handle;
+ }
+
+ /* send IDENTIFY for each device */
+ ide_port_for_each_present_dev(i, drive, hwif) {
err = taskfile_lib_get_identify(drive, drive->acpidata->idbuff);
if (err)
DEBPRINT("identify device %s failed (%d)\n",
ide_acpi_get_timing(hwif);
ide_acpi_push_timing(hwif);
- for (i = 0; i < MAX_DRIVES; i++) {
- drive = &hwif->drives[i];
-
- if (drive->dev_flags & IDE_DFLAG_PRESENT)
- /* Execute ACPI startup code */
- ide_acpi_exec_tfs(drive);
+ ide_port_for_each_present_dev(i, drive, hwif) {
+ ide_acpi_exec_tfs(drive);
}
}