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ide: merge ide_match_hwif() and ide_find_port()
* Change ide_match_hwif() argument from 'u8 bootable' to 'struct ide_port_info *d'. * Move ide_match_hwif() to ide-probe.c from setup-pci.c and rename it to ide_find_port_slot(). Update some comments while at it. * ide_find_port() can be now just a wrapper for ide_find_port_slot(). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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@ -1444,6 +1444,52 @@ static int ide_sysfs_register_port(ide_hwif_t *hwif)
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return rc;
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}
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/**
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* ide_find_port_slot - find free ide_hwifs[] slot
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* @d: IDE port info
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*
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* Return the new hwif. If we are out of free slots return NULL.
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*/
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ide_hwif_t *ide_find_port_slot(const struct ide_port_info *d)
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{
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ide_hwif_t *hwif;
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int i;
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u8 bootable = (d && (d->host_flags & IDE_HFLAG_NON_BOOTABLE)) ? 0 : 1;
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/*
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* Claim an unassigned slot.
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*
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* Give preference to claiming other slots before claiming ide0/ide1,
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* just in case there's another interface yet-to-be-scanned
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* which uses ports 0x1f0/0x170 (the ide0/ide1 defaults).
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*
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* Unless there is a bootable card that does not use the standard
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* ports 0x1f0/0x170 (the ide0/ide1 defaults).
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*/
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if (bootable) {
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for (i = 0; i < MAX_HWIFS; i++) {
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hwif = &ide_hwifs[i];
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if (hwif->chipset == ide_unknown)
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return hwif;
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}
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} else {
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for (i = 2; i < MAX_HWIFS; i++) {
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hwif = &ide_hwifs[i];
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if (hwif->chipset == ide_unknown)
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return hwif;
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}
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for (i = 0; i < 2 && i < MAX_HWIFS; i++) {
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hwif = &ide_hwifs[i];
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if (hwif->chipset == ide_unknown)
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return hwif;
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}
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}
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return NULL;
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}
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EXPORT_SYMBOL_GPL(ide_find_port_slot);
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int ide_device_add_all(u8 *idx, const struct ide_port_info *d)
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{
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ide_hwif_t *hwif, *mate = NULL;
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@ -232,21 +232,6 @@ static int ide_system_bus_speed(void)
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return pci_dev_present(pci_default) ? 33 : 50;
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}
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ide_hwif_t *ide_find_port(void)
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{
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ide_hwif_t *hwif;
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int i;
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for (i = 0; i < MAX_HWIFS; i++) {
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hwif = &ide_hwifs[i];
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if (hwif->chipset == ide_unknown)
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return hwif;
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}
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return NULL;
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}
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EXPORT_SYMBOL_GPL(ide_find_port);
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static struct resource* hwif_request_region(ide_hwif_t *hwif,
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unsigned long addr, int num)
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{
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@ -20,51 +20,6 @@
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#include <asm/io.h>
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#include <asm/irq.h>
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/**
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* ide_match_hwif - find free ide_hwifs[] slot
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* @bootable: bootable flag
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*
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* Return the new hwif. If we are out of free slots return NULL.
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*/
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static ide_hwif_t *ide_match_hwif(u8 bootable)
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{
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ide_hwif_t *hwif;
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int h;
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/*
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* Claim an unassigned slot.
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*
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* Give preference to claiming other slots before claiming ide0/ide1,
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* just in case there's another interface yet-to-be-scanned
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* which uses ports 1f0/170 (the ide0/ide1 defaults).
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*
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* Unless there is a bootable card that does not use the standard
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* ports 1f0/170 (the ide0/ide1 defaults). The (bootable) flag.
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*/
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if (bootable) {
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for (h = 0; h < MAX_HWIFS; ++h) {
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hwif = &ide_hwifs[h];
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if (hwif->chipset == ide_unknown)
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return hwif; /* pick an unused entry */
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}
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} else {
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for (h = 2; h < MAX_HWIFS; ++h) {
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hwif = ide_hwifs + h;
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if (hwif->chipset == ide_unknown)
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return hwif; /* pick an unused entry */
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}
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}
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for (h = 0; h < 2 && h < MAX_HWIFS; ++h) {
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hwif = ide_hwifs + h;
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if (hwif->chipset == ide_unknown)
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return hwif; /* pick an unused entry */
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}
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return NULL;
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}
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/**
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* ide_setup_pci_baseregs - place a PCI IDE controller native
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* @dev: PCI device of interface to switch native
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@ -320,7 +275,6 @@ static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev,
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{
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unsigned long ctl = 0, base = 0;
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ide_hwif_t *hwif;
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u8 bootable = (d->host_flags & IDE_HFLAG_NON_BOOTABLE) ? 0 : 1;
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struct hw_regs_s hw;
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if ((d->host_flags & IDE_HFLAG_ISA_PORTS) == 0) {
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@ -346,7 +300,7 @@ static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev,
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base = port ? 0x170 : 0x1f0;
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}
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hwif = ide_match_hwif(bootable);
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hwif = ide_find_port_slot(d);
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if (hwif == NULL) {
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printk(KERN_ERR "%s: too many IDE interfaces, no room in "
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"table\n", d->name);
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@ -170,7 +170,6 @@ typedef struct hw_regs_s {
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struct device *dev;
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} hw_regs_t;
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struct hwif_s *ide_find_port(void);
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void ide_init_port_data(struct hwif_s *, unsigned int);
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void ide_init_port_hw(struct hwif_s *, hw_regs_t *);
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@ -809,6 +808,13 @@ extern ide_hwif_t ide_hwifs[]; /* master data repository */
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#endif
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extern int noautodma;
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ide_hwif_t *ide_find_port_slot(const struct ide_port_info *);
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static inline ide_hwif_t *ide_find_port(void)
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{
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return ide_find_port_slot(NULL);
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}
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extern int ide_end_request (ide_drive_t *drive, int uptodate, int nrsecs);
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int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq,
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int uptodate, int nr_sectors);
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