int ide_noacpionboot = 1;
#endif
-/*
- * This is declared extern in ide.h, for access by other IDE modules:
- */
ide_hwif_t ide_hwifs[MAX_HWIFS]; /* master data repository */
-EXPORT_SYMBOL(ide_hwifs);
-
static void ide_port_init_devices_data(ide_hwif_t *);
/*
}
}
-
-static void init_hwif_default(ide_hwif_t *hwif, unsigned int index)
-{
- hw_regs_t hw;
-
- memset(&hw, 0, sizeof(hw_regs_t));
-
- ide_init_hwif_ports(&hw, ide_default_io_base(index), 0, &hwif->irq);
-
- memcpy(hwif->io_ports, hw.io_ports, sizeof(hw.io_ports));
-
- hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET];
-}
-
/*
* init_ide_data() sets reasonable default values into all fields
* of all instances of the hwifs and drives, but only on the first call.
#define MAGIC_COOKIE 0x12345678
static void __init init_ide_data (void)
{
- ide_hwif_t *hwif;
unsigned int index;
static unsigned long magic_cookie = MAGIC_COOKIE;
/* Initialise all interface structures */
for (index = 0; index < MAX_HWIFS; ++index) {
- hwif = &ide_hwifs[index];
+ ide_hwif_t *hwif = &ide_hwifs[index];
+
ide_init_port_data(hwif, index);
- init_hwif_default(hwif, index);
-#if !defined(CONFIG_PPC32) || !defined(CONFIG_PCI)
- hwif->irq =
- ide_init_default_irq(hwif->io_ports[IDE_DATA_OFFSET]);
-#endif
}
}
return pci_dev_present(pci_default) ? 33 : 50;
}
-ide_hwif_t * ide_find_port(unsigned long base)
-{
- ide_hwif_t *hwif;
- int i;
-
- for (i = 0; i < MAX_HWIFS; i++) {
- hwif = &ide_hwifs[i];
- if (hwif->io_ports[IDE_DATA_OFFSET] == base)
- goto found;
- }
-
- for (i = 0; i < MAX_HWIFS; i++) {
- hwif = &ide_hwifs[i];
- if (hwif->chipset == ide_unknown)
- goto found;
- }
-
- hwif = NULL;
-found:
- return hwif;
-}
-
-EXPORT_SYMBOL_GPL(ide_find_port);
-
-static struct resource* hwif_request_region(ide_hwif_t *hwif,
- unsigned long addr, int num)
-{
- struct resource *res = request_region(addr, num, hwif->name);
-
- if (!res)
- printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
- hwif->name, addr, addr+num-1);
- return res;
-}
-
-/**
- * ide_hwif_request_regions - request resources for IDE
- * @hwif: interface to use
- *
- * Requests all the needed resources for an interface.
- * Right now core IDE code does this work which is deeply wrong.
- * MMIO leaves it to the controller driver,
- * PIO will migrate this way over time.
- */
-
-int ide_hwif_request_regions(ide_hwif_t *hwif)
-{
- unsigned long addr;
- unsigned int i;
-
- if (hwif->mmio)
- return 0;
- addr = hwif->io_ports[IDE_CONTROL_OFFSET];
- if (addr && !hwif_request_region(hwif, addr, 1))
- goto control_region_busy;
- hwif->straight8 = 0;
- addr = hwif->io_ports[IDE_DATA_OFFSET];
- if ((addr | 7) == hwif->io_ports[IDE_STATUS_OFFSET]) {
- if (!hwif_request_region(hwif, addr, 8))
- goto data_region_busy;
- hwif->straight8 = 1;
- return 0;
- }
- for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
- addr = hwif->io_ports[i];
- if (!hwif_request_region(hwif, addr, 1)) {
- while (--i)
- release_region(addr, 1);
- goto data_region_busy;
- }
- }
- return 0;
-
-data_region_busy:
- addr = hwif->io_ports[IDE_CONTROL_OFFSET];
- if (addr)
- release_region(addr, 1);
-control_region_busy:
- /* If any errors are return, we drop the hwif interface. */
- return -EBUSY;
-}
-
-/**
- * ide_hwif_release_regions - free IDE resources
- *
- * Note that we only release the standard ports,
- * and do not even try to handle any extra ports
- * allocated for weird IDE interface chipsets.
- *
- * Note also that we don't yet handle mmio resources here. More
- * importantly our caller should be doing this so we need to
- * restructure this as a helper function for drivers.
- */
-
-void ide_hwif_release_regions(ide_hwif_t *hwif)
-{
- u32 i = 0;
-
- if (hwif->mmio)
- return;
- if (hwif->io_ports[IDE_CONTROL_OFFSET])
- release_region(hwif->io_ports[IDE_CONTROL_OFFSET], 1);
- if (hwif->straight8) {
- release_region(hwif->io_ports[IDE_DATA_OFFSET], 8);
- return;
- }
- for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++)
- if (hwif->io_ports[i])
- release_region(hwif->io_ports[i], 1);
-}
-
-/**
- * ide_hwif_restore - restore hwif to template
- * @hwif: hwif to update
- * @tmp_hwif: template
- *
- * Restore hwif to a previous state by copying most settings
- * from the template.
- */
-
-static void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif)
-{
- hwif->hwgroup = tmp_hwif->hwgroup;
-
- hwif->gendev.parent = tmp_hwif->gendev.parent;
-
- hwif->proc = tmp_hwif->proc;
-
- hwif->major = tmp_hwif->major;
- hwif->straight8 = tmp_hwif->straight8;
- hwif->bus_state = tmp_hwif->bus_state;
-
- hwif->host_flags = tmp_hwif->host_flags;
-
- hwif->pio_mask = tmp_hwif->pio_mask;
-
- hwif->ultra_mask = tmp_hwif->ultra_mask;
- hwif->mwdma_mask = tmp_hwif->mwdma_mask;
- hwif->swdma_mask = tmp_hwif->swdma_mask;
-
- hwif->cbl = tmp_hwif->cbl;
-
- hwif->chipset = tmp_hwif->chipset;
- hwif->hold = tmp_hwif->hold;
-
- hwif->dev = tmp_hwif->dev;
-
-#ifdef CONFIG_BLK_DEV_IDEPCI
- hwif->cds = tmp_hwif->cds;
-#endif
-
- hwif->set_pio_mode = tmp_hwif->set_pio_mode;
- hwif->set_dma_mode = tmp_hwif->set_dma_mode;
- hwif->mdma_filter = tmp_hwif->mdma_filter;
- hwif->udma_filter = tmp_hwif->udma_filter;
- hwif->selectproc = tmp_hwif->selectproc;
- hwif->reset_poll = tmp_hwif->reset_poll;
- hwif->pre_reset = tmp_hwif->pre_reset;
- hwif->resetproc = tmp_hwif->resetproc;
- hwif->maskproc = tmp_hwif->maskproc;
- hwif->quirkproc = tmp_hwif->quirkproc;
-
- hwif->ata_input_data = tmp_hwif->ata_input_data;
- hwif->ata_output_data = tmp_hwif->ata_output_data;
- hwif->atapi_input_bytes = tmp_hwif->atapi_input_bytes;
- hwif->atapi_output_bytes = tmp_hwif->atapi_output_bytes;
-
- hwif->dma_host_set = tmp_hwif->dma_host_set;
- hwif->dma_setup = tmp_hwif->dma_setup;
- hwif->dma_exec_cmd = tmp_hwif->dma_exec_cmd;
- hwif->dma_start = tmp_hwif->dma_start;
- hwif->ide_dma_end = tmp_hwif->ide_dma_end;
- hwif->ide_dma_test_irq = tmp_hwif->ide_dma_test_irq;
- hwif->ide_dma_clear_irq = tmp_hwif->ide_dma_clear_irq;
- hwif->dma_lost_irq = tmp_hwif->dma_lost_irq;
- hwif->dma_timeout = tmp_hwif->dma_timeout;
-
- hwif->OUTB = tmp_hwif->OUTB;
- hwif->OUTBSYNC = tmp_hwif->OUTBSYNC;
- hwif->OUTW = tmp_hwif->OUTW;
- hwif->OUTSW = tmp_hwif->OUTSW;
- hwif->OUTSL = tmp_hwif->OUTSL;
-
- hwif->INB = tmp_hwif->INB;
- hwif->INW = tmp_hwif->INW;
- hwif->INSW = tmp_hwif->INSW;
- hwif->INSL = tmp_hwif->INSL;
-
- hwif->sg_max_nents = tmp_hwif->sg_max_nents;
-
- hwif->mmio = tmp_hwif->mmio;
- hwif->rqsize = tmp_hwif->rqsize;
-
-#ifndef CONFIG_BLK_DEV_IDECS
- hwif->irq = tmp_hwif->irq;
-#endif
-
- hwif->dma_base = tmp_hwif->dma_base;
- hwif->dma_command = tmp_hwif->dma_command;
- hwif->dma_vendor1 = tmp_hwif->dma_vendor1;
- hwif->dma_status = tmp_hwif->dma_status;
- hwif->dma_vendor3 = tmp_hwif->dma_vendor3;
- hwif->dma_prdtable = tmp_hwif->dma_prdtable;
-
- hwif->config_data = tmp_hwif->config_data;
- hwif->select_data = tmp_hwif->select_data;
- hwif->extra_base = tmp_hwif->extra_base;
- hwif->extra_ports = tmp_hwif->extra_ports;
-
- hwif->hwif_data = tmp_hwif->hwif_data;
-}
-
void ide_remove_port_from_hwgroup(ide_hwif_t *hwif)
{
ide_hwgroup_t *hwgroup = hwif->hwgroup;
/**
* ide_unregister - free an IDE interface
* @index: index of interface (will change soon to a pointer)
- * @init_default: init default hwif flag
- * @restore: restore hwif flag
*
* Perform the final unregister of an IDE interface. At the moment
* we don't refcount interfaces so this will also get split up.
* This is raving bonkers.
*/
-void ide_unregister(unsigned int index, int init_default, int restore)
+void ide_unregister(unsigned int index)
{
ide_hwif_t *hwif, *g;
- static ide_hwif_t tmp_hwif; /* protected by ide_cfg_mtx */
ide_hwgroup_t *hwgroup;
int irq_count = 0;
unregister_blkdev(hwif->major, hwif->name);
spin_lock_irq(&ide_lock);
- if (hwif->dma_base) {
- (void) ide_release_dma(hwif);
-
- hwif->dma_base = 0;
- hwif->dma_command = 0;
- hwif->dma_vendor1 = 0;
- hwif->dma_status = 0;
- hwif->dma_vendor3 = 0;
- hwif->dma_prdtable = 0;
-
- hwif->extra_base = 0;
- hwif->extra_ports = 0;
- }
-
- ide_hwif_release_regions(hwif);
-
- /* copy original settings */
- tmp_hwif = *hwif;
+ if (hwif->dma_base)
+ ide_release_dma_engine(hwif);
/* restore hwif data to pristine status */
ide_init_port_data(hwif, index);
- if (init_default)
- init_hwif_default(hwif, index);
-
- if (restore)
- ide_hwif_restore(hwif, &tmp_hwif);
-
abort:
spin_unlock_irq(&ide_lock);
mutex_unlock(&ide_cfg_mtx);
{
memcpy(hwif->io_ports, hw->io_ports, sizeof(hwif->io_ports));
hwif->irq = hw->irq;
- hwif->noprobe = 0;
hwif->chipset = hw->chipset;
hwif->gendev.parent = hw->dev;
hwif->ack_intr = hw->ack_intr;
}
EXPORT_SYMBOL_GPL(ide_init_port_hw);
-/**
- * ide_register_hw - register IDE interface
- * @hw: hardware registers
- * @quirkproc: quirkproc function
- * @hwifp: pointer to returned hwif
- *
- * Register an IDE interface, specifying exactly the registers etc.
- *
- * Returns -1 on error.
- */
-
-static int ide_register_hw(hw_regs_t *hw, void (*quirkproc)(ide_drive_t *),
- ide_hwif_t **hwifp)
-{
- int index, retry = 1;
- ide_hwif_t *hwif;
- u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
-
- do {
- hwif = ide_find_port(hw->io_ports[IDE_DATA_OFFSET]);
- if (hwif)
- goto found;
- for (index = 0; index < MAX_HWIFS; index++)
- ide_unregister(index, 1, 1);
- } while (retry--);
- return -1;
-found:
- index = hwif->index;
- if (hwif->present)
- ide_unregister(index, 0, 1);
- else if (!hwif->hold)
- ide_init_port_data(hwif, index);
-
- ide_init_port_hw(hwif, hw);
- hwif->quirkproc = quirkproc;
-
- idx[0] = index;
-
- ide_device_add(idx, NULL);
-
- if (hwifp)
- *hwifp = hwif;
-
- return hwif->present ? index : -1;
-}
-
/*
* Locks for IDE setting functionality
*/
if (!drive->id || !(drive->id->capability & 1))
goto out;
- if (hwif->dma_host_set == NULL)
+ if (hwif->dma_ops == NULL)
goto out;
err = -EBUSY;
int set_pio_mode(ide_drive_t *drive, int arg)
{
struct request rq;
+ ide_hwif_t *hwif = drive->hwif;
+ const struct ide_port_ops *port_ops = hwif->port_ops;
if (arg < 0 || arg > 255)
return -EINVAL;
- if (drive->hwif->set_pio_mode == NULL)
+ if (port_ops == NULL || port_ops->set_pio_mode == NULL ||
+ (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
return -ENOSYS;
if (drive->special.b.set_tune)
if (!capable(CAP_SYS_RAWIO))
return -EACCES;
return ide_task_ioctl(drive, cmd, arg);
-
- case HDIO_SCAN_HWIF:
- {
- hw_regs_t hw;
- int args[3];
- if (!capable(CAP_SYS_RAWIO)) return -EACCES;
- if (copy_from_user(args, p, 3 * sizeof(int)))
- return -EFAULT;
- memset(&hw, 0, sizeof(hw));
- ide_init_hwif_ports(&hw, (unsigned long) args[0],
- (unsigned long) args[1], NULL);
- hw.irq = args[2];
- if (ide_register_hw(&hw, NULL, NULL) == -1)
- return -EIO;
- return 0;
- }
- case HDIO_UNREGISTER_HWIF:
- if (!capable(CAP_SYS_RAWIO)) return -EACCES;
- /* (arg > MAX_HWIFS) checked in function */
- ide_unregister(arg, 1, 1);
- return 0;
case HDIO_SET_NICE:
if (!capable(CAP_SYS_ADMIN)) return -EACCES;
if (arg != (arg & ((1 << IDE_NICE_DSC_OVERLAP) | (1 << IDE_NICE_1))))
extern int probe_ht6560b;
extern int probe_qd65xx;
extern int cmd640_vlb;
+extern int probe_4drives;
static int __initdata is_chipset_set;
goto done;
case -3: /* "nowerr" */
drive->bad_wstat = BAD_R_STAT;
- hwif->noprobe = 0;
goto done;
case -4: /* "cdrom" */
drive->present = 1;
drive->media = ide_cdrom;
/* an ATAPI device ignores DRDY */
drive->ready_stat = 0;
- hwif->noprobe = 0;
goto done;
case -5: /* nodma */
drive->nodma = 1;
drive->sect = drive->bios_sect = vals[2];
drive->present = 1;
drive->forced_geom = 1;
- hwif->noprobe = 0;
goto done;
default:
goto bad_option;
* (-8, -9, -10) are reserved to ease the hardcoding.
*/
static const char *ide_words[] = {
- "noprobe", "serialize", "minus3", "minus4",
+ "minus1", "minus2", "minus3", "minus4",
"reset", "minus6", "ata66", "minus8", "minus9",
"minus10", "four", "qd65xx", "ht6560b", "cmd640_vlb",
"dtc2278", "umc8672", "ali14xx", NULL };
#endif
#ifdef CONFIG_BLK_DEV_4DRIVES
case -11: /* "four" drives on one set of ports */
- {
- ide_hwif_t *mate = &ide_hwifs[hw^1];
- mate->drives[0].select.all ^= 0x20;
- mate->drives[1].select.all ^= 0x20;
- hwif->chipset = mate->chipset = ide_4drives;
- mate->irq = hwif->irq;
- memcpy(mate->io_ports, hwif->io_ports, sizeof(hwif->io_ports));
- hwif->mate = mate;
- mate->mate = hwif;
- hwif->serialized = mate->serialized = 1;
+ probe_4drives = 1;
goto obsolete_option;
- }
-#endif /* CONFIG_BLK_DEV_4DRIVES */
+#endif
case -10: /* minus10 */
case -9: /* minus9 */
case -8: /* minus8 */
case -5: /* "reset" */
hwif->reset = 1;
goto obsolete_option;
- case -2: /* "serialize" */
- hwif->mate = &ide_hwifs[hw^1];
- hwif->mate->mate = hwif;
- hwif->serialized = hwif->mate->serialized = 1;
- goto obsolete_option;
-
- case -1: /* "noprobe" */
- hwif->noprobe = 1;
- goto obsolete_option;
+ case -2:
+ case -1:
case 0:
case 1:
case 2:
put_device(&hwif->gendev);
}
+static unsigned int ide_ignore_cable;
+
+static int ide_set_ignore_cable(const char *s, struct kernel_param *kp)
+{
+ int i, j = 1;
+
+ if (sscanf(s, "%d:%d", &i, &j) != 2 && sscanf(s, "%d", &i) != 1)
+ return -EINVAL;
+
+ if (i >= MAX_HWIFS || j < 0 || j > 1)
+ return -EINVAL;
+
+ if (j)
+ ide_ignore_cable |= (1 << i);
+ else
+ ide_ignore_cable &= (1 << i);
+
+ return 0;
+}
+
+module_param_call(ignore_cable, ide_set_ignore_cable, NULL, NULL, 0);
+MODULE_PARM_DESC(ignore_cable, "ignore cable detection");
+
+void ide_port_apply_params(ide_hwif_t *hwif)
+{
+ if (ide_ignore_cable & (1 << hwif->index)) {
+ printk(KERN_INFO "ide: ignoring cable detection for %s\n",
+ hwif->name);
+ hwif->cbl = ATA_CBL_PATA40_SHORT;
+ }
+}
+
/*
* This is gets invoked once during initialization, to set *everything* up
*/
int index;
for (index = 0; index < MAX_HWIFS; ++index)
- ide_unregister(index, 0, 0);
+ ide_unregister(index);
proc_ide_destroy();
projects / firefly-linux-kernel-4.4.55.git / blobdiff