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[SCSI] aic7xxx: clean up eisa support
- the eisa layer only probes when it's actually safe, no need for a driver option - store the id table directly in linux format instead of convering at runtime Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Christoph Hellwig
James Bottomley
parent
8eb3794257
commit
d6cbbad729
3 changed files with 63 additions and 131 deletions
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@ -44,109 +44,6 @@
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#include <linux/device.h>
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#include <linux/eisa.h>
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#define EISA_MFCTR_CHAR0(ID) (char)(((ID>>26) & 0x1F) | '@') /* Bits 26-30 */
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#define EISA_MFCTR_CHAR1(ID) (char)(((ID>>21) & 0x1F) | '@') /* Bits 21-25 */
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#define EISA_MFCTR_CHAR2(ID) (char)(((ID>>16) & 0x1F) | '@') /* Bits 16-20 */
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#define EISA_PRODUCT_ID(ID) (short)((ID>>4) & 0xFFF) /* Bits 4-15 */
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#define EISA_REVISION_ID(ID) (uint8_t)(ID & 0x0F) /* Bits 0-3 */
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static int aic7770_eisa_dev_probe(struct device *dev);
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static int aic7770_eisa_dev_remove(struct device *dev);
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static struct eisa_driver aic7770_driver = {
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.driver = {
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.name = "aic7xxx",
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.probe = aic7770_eisa_dev_probe,
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.remove = aic7770_eisa_dev_remove,
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}
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};
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typedef struct device *aic7770_dev_t;
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static int aic7770_linux_config(struct aic7770_identity *entry,
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aic7770_dev_t dev, u_int eisaBase);
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int
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ahc_linux_eisa_init(void)
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{
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struct eisa_device_id *eid;
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struct aic7770_identity *id;
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int i;
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if (aic7xxx_probe_eisa_vl == 0)
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return -ENODEV;
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/*
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* Linux requires the EISA IDs to be specified in
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* the EISA ID string format. Perform the conversion
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* and setup a table with a NUL terminal entry.
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*/
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aic7770_driver.id_table = malloc(sizeof(struct eisa_device_id) *
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(ahc_num_aic7770_devs + 1),
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M_DEVBUF, M_NOWAIT);
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if (aic7770_driver.id_table == NULL)
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return -ENOMEM;
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for (eid = (struct eisa_device_id *)aic7770_driver.id_table,
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id = aic7770_ident_table, i = 0;
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i < ahc_num_aic7770_devs; eid++, id++, i++) {
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sprintf(eid->sig, "%c%c%c%03X%01X",
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EISA_MFCTR_CHAR0(id->full_id),
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EISA_MFCTR_CHAR1(id->full_id),
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EISA_MFCTR_CHAR2(id->full_id),
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EISA_PRODUCT_ID(id->full_id),
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EISA_REVISION_ID(id->full_id));
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eid->driver_data = i;
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}
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eid->sig[0] = 0;
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return eisa_driver_register(&aic7770_driver);
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}
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void
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ahc_linux_eisa_exit(void)
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{
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if(aic7xxx_probe_eisa_vl != 0 && aic7770_driver.id_table != NULL) {
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eisa_driver_unregister(&aic7770_driver);
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free(aic7770_driver.id_table, M_DEVBUF);
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}
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}
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static int
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aic7770_linux_config(struct aic7770_identity *entry, aic7770_dev_t dev,
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u_int eisaBase)
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{
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struct ahc_softc *ahc;
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char buf[80];
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char *name;
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int error;
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/*
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* Allocate a softc for this card and
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* set it up for attachment by our
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* common detect routine.
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*/
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sprintf(buf, "ahc_eisa:%d", eisaBase >> 12);
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name = malloc(strlen(buf) + 1, M_DEVBUF, M_NOWAIT);
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if (name == NULL)
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return (ENOMEM);
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strcpy(name, buf);
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ahc = ahc_alloc(&aic7xxx_driver_template, name);
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if (ahc == NULL)
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return (ENOMEM);
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error = aic7770_config(ahc, entry, eisaBase);
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if (error != 0) {
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ahc->bsh.ioport = 0;
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ahc_free(ahc);
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return (error);
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}
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dev->driver_data = (void *)ahc;
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if (aic7xxx_detect_complete)
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error = ahc_linux_register_host(ahc, &aic7xxx_driver_template);
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return (error);
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}
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int
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aic7770_map_registers(struct ahc_softc *ahc, u_int port)
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{
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@ -178,25 +75,79 @@ aic7770_map_int(struct ahc_softc *ahc, u_int irq)
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}
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static int
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aic7770_eisa_dev_probe(struct device *dev)
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aic7770_probe(struct device *dev)
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{
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struct eisa_device *edev;
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struct eisa_device *edev = to_eisa_device(dev);
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u_int eisaBase = edev->base_addr+AHC_EISA_SLOT_OFFSET;
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struct ahc_softc *ahc;
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char buf[80];
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char *name;
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int error;
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edev = to_eisa_device(dev);
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return (aic7770_linux_config(aic7770_ident_table + edev->id.driver_data,
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dev, edev->base_addr+AHC_EISA_SLOT_OFFSET));
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sprintf(buf, "ahc_eisa:%d", eisaBase >> 12);
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name = malloc(strlen(buf) + 1, M_DEVBUF, M_NOWAIT);
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if (name == NULL)
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return (ENOMEM);
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strcpy(name, buf);
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ahc = ahc_alloc(&aic7xxx_driver_template, name);
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if (ahc == NULL)
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return (ENOMEM);
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error = aic7770_config(ahc, aic7770_ident_table + edev->id.driver_data,
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eisaBase);
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if (error != 0) {
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ahc->bsh.ioport = 0;
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ahc_free(ahc);
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return (error);
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}
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dev_set_drvdata(dev, ahc);
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if (aic7xxx_detect_complete)
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error = ahc_linux_register_host(ahc, &aic7xxx_driver_template);
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return (error);
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}
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static int
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aic7770_eisa_dev_remove(struct device *dev)
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aic7770_remove(struct device *dev)
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{
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struct ahc_softc *ahc = dev_get_drvata(dev);
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struct ahc_softc *ahc = dev_get_drvdata(dev);
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u_long s;
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ahc_lock(ahc, &s);
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ahc_intr_enable(ahc, FALSE);
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ahc_unlock(ahc, &s);
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ahc_free(ahc);
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return (0);
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ahc_free(ahc);
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return 0;
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}
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static struct eisa_device_id aic7770_ids[] = {
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{ "ADP7771", 0 }, /* AHA 274x */
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{ "ADP7756", 1 }, /* AHA 284x BIOS enabled */
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{ "ADP7757", 2 }, /* AHA 284x BIOS disabled */
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{ "ADP7782", 3 }, /* AHA 274x Olivetti OEM */
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{ "ADP7783", 4 }, /* AHA 274x Olivetti OEM (Differential) */
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{ "ADP7770", 5 }, /* AIC7770 generic */
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{ "" }
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};
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static struct eisa_driver aic7770_driver = {
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.id_table = aic7770_ids,
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.driver = {
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.name = "aic7xxx",
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.probe = aic7770_probe,
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.remove = aic7770_remove,
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}
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};
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int
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ahc_linux_eisa_init(void)
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{
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return eisa_driver_register(&aic7770_driver);
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}
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void
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ahc_linux_eisa_exit(void)
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{
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eisa_driver_unregister(&aic7770_driver);
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}
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@ -329,22 +329,6 @@ static uint32_t aic7xxx_extended;
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*/
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static uint32_t aic7xxx_pci_parity = ~0;
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/*
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* Certain newer motherboards have put new PCI based devices into the
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* IO spaces that used to typically be occupied by VLB or EISA cards.
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* This overlap can cause these newer motherboards to lock up when scanned
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* for older EISA and VLB devices. Setting this option to non-0 will
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* cause the driver to skip scanning for any VLB or EISA controllers and
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* only support the PCI controllers. NOTE: this means that if the kernel
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* os compiled with PCI support disabled, then setting this to non-0
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* would result in never finding any devices :)
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*/
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#ifndef CONFIG_AIC7XXX_PROBE_EISA_VL
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uint32_t aic7xxx_probe_eisa_vl;
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#else
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uint32_t aic7xxx_probe_eisa_vl = ~0;
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#endif
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/*
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* There are lots of broken chipsets in the world. Some of them will
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* violate the PCI spec when we issue byte sized memory writes to our
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@ -1101,8 +1085,6 @@ aic7xxx_setup(char *s)
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{ "debug", &ahc_debug },
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#endif
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{ "reverse_scan", &aic7xxx_reverse_scan },
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{ "no_probe", &aic7xxx_probe_eisa_vl },
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{ "probe_eisa_vl", &aic7xxx_probe_eisa_vl },
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{ "periodic_otag", &aic7xxx_periodic_otag },
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{ "pci_parity", &aic7xxx_pci_parity },
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{ "seltime", &aic7xxx_seltime },
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@ -605,7 +605,6 @@ typedef enum
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/**************************** VL/EISA Routines ********************************/
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#ifdef CONFIG_EISA
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extern uint32_t aic7xxx_probe_eisa_vl;
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int ahc_linux_eisa_init(void);
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void ahc_linux_eisa_exit(void);
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int aic7770_map_registers(struct ahc_softc *ahc,
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