patch-2.4.22 linux-2.4.22/drivers/scsi/aic79xx/aic79xx_osm_pci.c
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- Lines: 433
- Date:
1969-12-31 16:00:00.000000000 -0800
- Orig file:
linux-2.4.21/drivers/scsi/aic79xx/aic79xx_osm_pci.c
- Orig date:
2003-06-13 07:51:36.000000000 -0700
diff -urN linux-2.4.21/drivers/scsi/aic79xx/aic79xx_osm_pci.c linux-2.4.22/drivers/scsi/aic79xx/aic79xx_osm_pci.c
@@ -1,432 +0,0 @@
-/*
- * Linux driver attachment glue for PCI based U320 controllers.
- *
- * Copyright (c) 2000-2001 Adaptec Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- *
- * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic79xx_osm_pci.c#20 $
- */
-
-#include "aic79xx_osm.h"
-#include "aic79xx_inline.h"
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0)
-struct pci_device_id
-{
-};
-#endif
-
-static int ahd_linux_pci_dev_probe(struct pci_dev *pdev,
- const struct pci_device_id *ent);
-static int ahd_linux_pci_reserve_io_regions(struct ahd_softc *ahd,
- u_long *base, u_long *base2);
-static int ahd_linux_pci_reserve_mem_region(struct ahd_softc *ahd,
- u_long *bus_addr,
- uint8_t **maddr);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
-static void ahd_linux_pci_dev_remove(struct pci_dev *pdev);
-
-/* We do our own ID filtering. So, grab all SCSI storage class devices. */
-static struct pci_device_id ahd_linux_pci_id_table[] = {
- {
- 0x9005, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
- PCI_CLASS_STORAGE_SCSI << 8, 0xFFFF00, 0
- },
- { 0 }
-};
-
-MODULE_DEVICE_TABLE(pci, ahd_linux_pci_id_table);
-
-struct pci_driver aic79xx_pci_driver = {
- name: "aic79xx",
- probe: ahd_linux_pci_dev_probe,
- remove: ahd_linux_pci_dev_remove,
- id_table: ahd_linux_pci_id_table
-};
-
-static void
-ahd_linux_pci_dev_remove(struct pci_dev *pdev)
-{
- struct ahd_softc *ahd;
- u_long l;
-
- /*
- * We should be able to just perform
- * the free directly, but check our
- * list for extra sanity.
- */
- ahd_list_lock(&l);
- ahd = ahd_find_softc((struct ahd_softc *)pci_get_drvdata(pdev));
- if (ahd != NULL) {
- u_long s;
-
- ahd_lock(ahd, &s);
- ahd_intr_enable(ahd, FALSE);
- ahd_unlock(ahd, &s);
- ahd_free(ahd);
- }
- ahd_list_unlock(&l);
-}
-#endif /* !LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0) */
-
-static int
-ahd_linux_pci_dev_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
-{
- char buf[80];
- struct ahd_softc *ahd;
- ahd_dev_softc_t pci;
- struct ahd_pci_identity *entry;
- char *name;
- int error;
-
- /*
- * Some BIOSen report the same device multiple times.
- */
- TAILQ_FOREACH(ahd, &ahd_tailq, links) {
- struct pci_dev *probed_pdev;
-
- probed_pdev = ahd->dev_softc;
- if (probed_pdev->bus->number == pdev->bus->number
- && probed_pdev->devfn == pdev->devfn)
- break;
- }
- if (ahd != NULL) {
- /* Skip duplicate. */
- return (-ENODEV);
- }
-
- pci = pdev;
- entry = ahd_find_pci_device(pci);
- if (entry == NULL)
- return (-ENODEV);
-
- /*
- * Allocate a softc for this card and
- * set it up for attachment by our
- * common detect routine.
- */
- sprintf(buf, "ahd_pci:%d:%d:%d",
- ahd_get_pci_bus(pci),
- ahd_get_pci_slot(pci),
- ahd_get_pci_function(pci));
- name = malloc(strlen(buf) + 1, M_DEVBUF, M_NOWAIT);
- if (name == NULL)
- return (-ENOMEM);
- strcpy(name, buf);
- ahd = ahd_alloc(NULL, name);
- if (ahd == NULL)
- return (-ENOMEM);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
- if (pci_enable_device(pdev)) {
- ahd_free(ahd);
- return (-ENODEV);
- }
- pci_set_master(pdev);
-
- if (sizeof(bus_addr_t) > 4) {
- uint64_t memsize;
-
- memsize = ahd_linux_get_memsize();
- if (memsize >= 0x8000000000
- && ahd_pci_set_dma_mask(pdev, 0xFFFFFFFFFFFFFFFFULL) == 0) {
- ahd->flags |= AHD_64BIT_ADDRESSING;
- ahd->platform_data->hw_dma_mask =
- (bus_addr_t)(0xFFFFFFFFFFFFFFFFULL&(bus_addr_t)~0);
- } else if (memsize > 0x80000000
- && ahd_pci_set_dma_mask(pdev, 0x7FFFFFFFFFULL) == 0) {
- ahd->flags |= AHD_39BIT_ADDRESSING;
- ahd->platform_data->hw_dma_mask =
- (bus_addr_t)(0x7FFFFFFFFFULL & (bus_addr_t)~0);
- }
- } else {
- ahd_pci_set_dma_mask(pdev, 0xFFFFFFFF);
- ahd->platform_data->hw_dma_mask = 0xFFFFFFFF;
- }
-#endif
- ahd->dev_softc = pci;
- error = ahd_pci_config(ahd, entry);
- if (error != 0) {
- ahd_free(ahd);
- return (-error);
- }
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
- pci_set_drvdata(pdev, ahd);
- if (aic79xx_detect_complete)
- ahd_linux_register_host(ahd, &aic79xx_driver_template);
-#endif
- return (0);
-}
-
-int
-ahd_linux_pci_probe(Scsi_Host_Template *template)
-{
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
- return (pci_module_init(&aic79xx_pci_driver));
-#else
- struct pci_dev *pdev;
- u_int class;
- int found;
-
- /* If we don't have a PCI bus, we can't find any adapters. */
- if (pci_present() == 0)
- return (0);
-
- found = 0;
- pdev = NULL;
- class = PCI_CLASS_STORAGE_SCSI << 8;
- while ((pdev = pci_find_class(class, pdev)) != NULL) {
- ahd_dev_softc_t pci;
- int error;
-
- pci = pdev;
- error = ahd_linux_pci_dev_probe(pdev, /*pci_devid*/NULL);
- if (error == 0)
- found++;
- }
- return (found);
-#endif
-}
-
-static int
-ahd_linux_pci_reserve_io_regions(struct ahd_softc *ahd, u_long *base,
- u_long *base2)
-{
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0)
- *base = pci_resource_start(ahd->dev_softc, 0);
- /*
- * This is really the 3rd bar and should be at index 2,
- * but the Linux PCI code doesn't know how to "count" 64bit
- * bars.
- */
- *base2 = pci_resource_start(ahd->dev_softc, 3);
-#else
- *base = ahd_pci_read_config(ahd->dev_softc, AHD_PCI_IOADDR0, 4);
- *base2 = ahd_pci_read_config(ahd->dev_softc, AHD_PCI_IOADDR1, 4);
- *base &= PCI_BASE_ADDRESS_IO_MASK;
- *base2 &= PCI_BASE_ADDRESS_IO_MASK;
-#endif
- if (*base == 0 || *base2 == 0)
- return (ENOMEM);
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0)
- if (check_region(*base, 256) != 0
- || check_region(*base2, 256) != 0)
- return (ENOMEM);
- request_region(*base, 256, "aic79xx");
- request_region(*base2, 256, "aic79xx");
-#else
- if (request_region(*base, 256, "aic79xx") == 0)
- return (ENOMEM);
- if (request_region(*base2, 256, "aic79xx") == 0) {
- release_region(*base2, 256);
- return (ENOMEM);
- }
-#endif
- return (0);
-}
-
-static int
-ahd_linux_pci_reserve_mem_region(struct ahd_softc *ahd,
- u_long *bus_addr,
- uint8_t **maddr)
-{
- u_long start;
- u_long base_page;
- u_long base_offset;
- int error;
-
- if (aic79xx_allow_memio == 0)
- return (ENOMEM);
-
- if ((ahd->bugs & AHD_PCIX_MMAPIO_BUG) != 0)
- return (ENOMEM);
-
- error = 0;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0)
- start = pci_resource_start(ahd->dev_softc, 1);
- base_page = start & PAGE_MASK;
- base_offset = start - base_page;
-#else
- start = ahd_pci_read_config(ahd->dev_softc, PCIR_MAPS+4, 4);
- base_offset = start & PCI_BASE_ADDRESS_MEM_MASK;
- base_page = base_offset & PAGE_MASK;
- base_offset -= base_page;
-#endif
- if (start != 0) {
- *bus_addr = start;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
- if (request_mem_region(start, 0x1000, "aic79xx") == 0)
- error = ENOMEM;
-#endif
- if (error == 0) {
- *maddr = ioremap_nocache(base_page, base_offset + 256);
- if (*maddr == NULL) {
- error = ENOMEM;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
- release_mem_region(start, 0x1000);
-#endif
- } else
- *maddr += base_offset;
- }
- } else
- error = ENOMEM;
- return (error);
-}
-
-int
-ahd_pci_map_registers(struct ahd_softc *ahd)
-{
- uint32_t command;
- u_long base;
- uint8_t *maddr;
- int error;
-
- /*
- * If its allowed, we prefer memory mapped access.
- */
- command = ahd_pci_read_config(ahd->dev_softc, PCIR_COMMAND, 4);
- command &= ~(PCIM_CMD_PORTEN|PCIM_CMD_MEMEN);
- base = 0;
- maddr = NULL;
-#ifdef MMAPIO
- error = ahd_linux_pci_reserve_mem_region(ahd, &base, &maddr);
- if (error == 0) {
- ahd->platform_data->mem_busaddr = base;
- ahd->tags[0] = BUS_SPACE_MEMIO;
- ahd->bshs[0].maddr = maddr;
- ahd->tags[1] = BUS_SPACE_MEMIO;
- ahd->bshs[1].maddr = maddr + 0x100;
- ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND,
- command | PCIM_CMD_MEMEN, 4);
-
- if (ahd_pci_test_register_access(ahd) != 0) {
-
- printf("aic79xx: PCI Device %d:%d:%d "
- "failed memory mapped test. Using PIO.\n",
- ahd_get_pci_bus(ahd->dev_softc),
- ahd_get_pci_slot(ahd->dev_softc),
- ahd_get_pci_function(ahd->dev_softc));
- iounmap((void *)((u_long)maddr & PAGE_MASK));
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
- release_mem_region(ahd->platform_data->mem_busaddr,
- 0x1000);
-#endif
- ahd->bshs[0].maddr = NULL;
- maddr = NULL;
- } else
- command |= PCIM_CMD_MEMEN;
- } else if (bootverbose) {
- printf("aic79xx: PCI%d:%d:%d MEM region 0x%lx "
- "unavailable. Cannot memory map device.\n",
- ahd_get_pci_bus(ahd->dev_softc),
- ahd_get_pci_slot(ahd->dev_softc),
- ahd_get_pci_function(ahd->dev_softc),
- base);
- }
-#endif
-
- if (maddr == NULL) {
- u_long base2;
-
- error = ahd_linux_pci_reserve_io_regions(ahd, &base, &base2);
- if (error == 0) {
- ahd->tags[0] = BUS_SPACE_PIO;
- ahd->tags[1] = BUS_SPACE_PIO;
- ahd->bshs[0].ioport = base;
- ahd->bshs[1].ioport = base2;
- command |= PCIM_CMD_PORTEN;
- } else {
- printf("aic79xx: PCI%d:%d:%d IO regions 0x%lx and 0x%lx"
- "unavailable. Cannot map device.\n",
- ahd_get_pci_bus(ahd->dev_softc),
- ahd_get_pci_slot(ahd->dev_softc),
- ahd_get_pci_function(ahd->dev_softc),
- base, base2);
- }
- }
- ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND, command, 4);
- return (error);
-}
-
-int
-ahd_pci_map_int(struct ahd_softc *ahd)
-{
- int error;
-
- error = request_irq(ahd->dev_softc->irq, ahd_linux_isr,
- SA_SHIRQ, "aic79xx", ahd);
- if (error == 0)
- ahd->platform_data->irq = ahd->dev_softc->irq;
-
- return (-error);
-}
-
-void
-ahd_power_state_change(struct ahd_softc *ahd, ahd_power_state new_state)
-{
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
- pci_set_power_state(ahd->dev_softc, new_state);
-#else
- uint32_t cap;
- u_int cap_offset;
-
- /*
- * Traverse the capability list looking for
- * the power management capability.
- */
- cap = 0;
- cap_offset = ahd_pci_read_config(ahd->dev_softc,
- PCIR_CAP_PTR, /*bytes*/1);
- while (cap_offset != 0) {
-
- cap = ahd_pci_read_config(ahd->dev_softc,
- cap_offset, /*bytes*/4);
- if ((cap & 0xFF) == 1
- && ((cap >> 16) & 0x3) > 0) {
- uint32_t pm_control;
-
- pm_control = ahd_pci_read_config(ahd->dev_softc,
- cap_offset + 4,
- /*bytes*/4);
- pm_control &= ~0x3;
- pm_control |= new_state;
- ahd_pci_write_config(ahd->dev_softc,
- cap_offset + 4,
- pm_control, /*bytes*/2);
- break;
- }
- cap_offset = (cap >> 8) & 0xFF;
- }
-#endif
-}
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