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1275 |
phoenix |
/*
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* Linux driver attachment glue for PCI based U320 controllers.
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*
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* Copyright (c) 2000-2001 Adaptec Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*
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* $Id: aic79xx_osm_pci.c,v 1.1.1.1 2004-04-15 02:15:51 phoenix Exp $
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*/
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#include "aic79xx_osm.h"
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#include "aic79xx_inline.h"
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#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0)
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struct pci_device_id
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{
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};
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#endif
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static int ahd_linux_pci_dev_probe(struct pci_dev *pdev,
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const struct pci_device_id *ent);
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static int ahd_linux_pci_reserve_io_regions(struct ahd_softc *ahd,
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u_long *base, u_long *base2);
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static int ahd_linux_pci_reserve_mem_region(struct ahd_softc *ahd,
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u_long *bus_addr,
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uint8_t **maddr);
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
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static void ahd_linux_pci_dev_remove(struct pci_dev *pdev);
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/* We do our own ID filtering. So, grab all SCSI storage class devices. */
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static struct pci_device_id ahd_linux_pci_id_table[] = {
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{
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0x9005, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
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PCI_CLASS_STORAGE_SCSI << 8, 0xFFFF00, 0
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},
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{ 0 }
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};
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MODULE_DEVICE_TABLE(pci, ahd_linux_pci_id_table);
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struct pci_driver aic79xx_pci_driver = {
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name: "aic79xx",
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probe: ahd_linux_pci_dev_probe,
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remove: ahd_linux_pci_dev_remove,
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id_table: ahd_linux_pci_id_table
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};
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static void
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ahd_linux_pci_dev_remove(struct pci_dev *pdev)
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{
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struct ahd_softc *ahd;
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u_long l;
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/*
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* We should be able to just perform
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* the free directly, but check our
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* list for extra sanity.
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*/
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ahd_list_lock(&l);
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ahd = ahd_find_softc((struct ahd_softc *)pci_get_drvdata(pdev));
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if (ahd != NULL) {
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u_long s;
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ahd_lock(ahd, &s);
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ahd_intr_enable(ahd, FALSE);
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ahd_unlock(ahd, &s);
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ahd_free(ahd);
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}
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ahd_list_unlock(&l);
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}
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#endif /* !LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0) */
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static int
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ahd_linux_pci_dev_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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{
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char buf[80];
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struct ahd_softc *ahd;
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ahd_dev_softc_t pci;
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struct ahd_pci_identity *entry;
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char *name;
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int error;
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/*
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* Some BIOSen report the same device multiple times.
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*/
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TAILQ_FOREACH(ahd, &ahd_tailq, links) {
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struct pci_dev *probed_pdev;
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probed_pdev = ahd->dev_softc;
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if (probed_pdev->bus->number == pdev->bus->number
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&& probed_pdev->devfn == pdev->devfn)
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break;
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}
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if (ahd != NULL) {
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/* Skip duplicate. */
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return (-ENODEV);
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}
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pci = pdev;
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entry = ahd_find_pci_device(pci);
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if (entry == NULL)
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return (-ENODEV);
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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, "ahd_pci:%d:%d:%d",
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ahd_get_pci_bus(pci),
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ahd_get_pci_slot(pci),
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ahd_get_pci_function(pci));
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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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ahd = ahd_alloc(NULL, name);
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if (ahd == NULL)
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return (-ENOMEM);
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
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if (pci_enable_device(pdev)) {
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ahd_free(ahd);
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return (-ENODEV);
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}
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pci_set_master(pdev);
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if (sizeof(bus_addr_t) > 4) {
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uint64_t memsize;
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bus_addr_t mask_64bit;
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bus_addr_t mask_39bit;
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memsize = ahd_linux_get_memsize();
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mask_64bit = (bus_addr_t)0xFFFFFFFFFFFFFFFFULL;
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mask_39bit = (bus_addr_t)0x7FFFFFFFFFULL;
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if (memsize >= 0x8000000000ULL
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&& ahd_pci_set_dma_mask(pdev, mask_64bit) == 0) {
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ahd->flags |= AHD_64BIT_ADDRESSING;
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ahd->platform_data->hw_dma_mask = mask_64bit;
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} else if (memsize > 0x80000000
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&& ahd_pci_set_dma_mask(pdev, mask_39bit) == 0) {
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ahd->flags |= AHD_39BIT_ADDRESSING;
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ahd->platform_data->hw_dma_mask = mask_39bit;
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}
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} else {
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ahd_pci_set_dma_mask(pdev, 0xFFFFFFFF);
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ahd->platform_data->hw_dma_mask = 0xFFFFFFFF;
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}
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#endif
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ahd->dev_softc = pci;
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error = ahd_pci_config(ahd, entry);
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if (error != 0) {
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ahd_free(ahd);
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return (-error);
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}
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| 186 |
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
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pci_set_drvdata(pdev, ahd);
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if (aic79xx_detect_complete) {
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
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ahd_linux_register_host(ahd, &aic79xx_driver_template);
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#else
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| 192 |
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printf("aic79xx: ignoring PCI device found after "
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| 193 |
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"initialization\n");
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| 194 |
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return (-ENODEV);
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| 195 |
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#endif
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| 196 |
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}
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| 197 |
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#endif
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| 198 |
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return (0);
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| 199 |
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}
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| 200 |
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| 201 |
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int
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| 202 |
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ahd_linux_pci_init(void)
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| 203 |
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{
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| 204 |
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
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| 205 |
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return (pci_module_init(&aic79xx_pci_driver));
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| 206 |
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#else
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| 207 |
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struct pci_dev *pdev;
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| 208 |
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u_int class;
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| 209 |
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int found;
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| 210 |
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| 211 |
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/* If we don't have a PCI bus, we can't find any adapters. */
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| 212 |
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if (pci_present() == 0)
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return (0);
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| 214 |
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| 215 |
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found = 0;
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| 216 |
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pdev = NULL;
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| 217 |
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class = PCI_CLASS_STORAGE_SCSI << 8;
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| 218 |
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while ((pdev = pci_find_class(class, pdev)) != NULL) {
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| 219 |
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ahd_dev_softc_t pci;
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| 220 |
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int error;
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| 221 |
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| 222 |
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pci = pdev;
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| 223 |
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error = ahd_linux_pci_dev_probe(pdev, /*pci_devid*/NULL);
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| 224 |
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if (error == 0)
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| 225 |
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found++;
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| 226 |
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}
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| 227 |
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return (found);
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| 228 |
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#endif
|
| 229 |
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}
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| 230 |
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|
| 231 |
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void
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| 232 |
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ahd_linux_pci_exit(void)
|
| 233 |
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{
|
| 234 |
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pci_unregister_driver(&aic79xx_pci_driver);
|
| 235 |
|
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}
|
| 236 |
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| 237 |
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static int
|
| 238 |
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ahd_linux_pci_reserve_io_regions(struct ahd_softc *ahd, u_long *base,
|
| 239 |
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u_long *base2)
|
| 240 |
|
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{
|
| 241 |
|
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0)
|
| 242 |
|
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*base = pci_resource_start(ahd->dev_softc, 0);
|
| 243 |
|
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/*
|
| 244 |
|
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* This is really the 3rd bar and should be at index 2,
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| 245 |
|
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* but the Linux PCI code doesn't know how to "count" 64bit
|
| 246 |
|
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* bars.
|
| 247 |
|
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*/
|
| 248 |
|
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*base2 = pci_resource_start(ahd->dev_softc, 3);
|
| 249 |
|
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#else
|
| 250 |
|
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*base = ahd_pci_read_config(ahd->dev_softc, AHD_PCI_IOADDR0, 4);
|
| 251 |
|
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*base2 = ahd_pci_read_config(ahd->dev_softc, AHD_PCI_IOADDR1, 4);
|
| 252 |
|
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*base &= PCI_BASE_ADDRESS_IO_MASK;
|
| 253 |
|
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*base2 &= PCI_BASE_ADDRESS_IO_MASK;
|
| 254 |
|
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#endif
|
| 255 |
|
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if (*base == 0 || *base2 == 0)
|
| 256 |
|
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return (ENOMEM);
|
| 257 |
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0)
|
| 258 |
|
|
if (check_region(*base, 256) != 0
|
| 259 |
|
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|| check_region(*base2, 256) != 0)
|
| 260 |
|
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return (ENOMEM);
|
| 261 |
|
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request_region(*base, 256, "aic79xx");
|
| 262 |
|
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request_region(*base2, 256, "aic79xx");
|
| 263 |
|
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#else
|
| 264 |
|
|
if (request_region(*base, 256, "aic79xx") == 0)
|
| 265 |
|
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return (ENOMEM);
|
| 266 |
|
|
if (request_region(*base2, 256, "aic79xx") == 0) {
|
| 267 |
|
|
release_region(*base2, 256);
|
| 268 |
|
|
return (ENOMEM);
|
| 269 |
|
|
}
|
| 270 |
|
|
#endif
|
| 271 |
|
|
return (0);
|
| 272 |
|
|
}
|
| 273 |
|
|
|
| 274 |
|
|
static int
|
| 275 |
|
|
ahd_linux_pci_reserve_mem_region(struct ahd_softc *ahd,
|
| 276 |
|
|
u_long *bus_addr,
|
| 277 |
|
|
uint8_t **maddr)
|
| 278 |
|
|
{
|
| 279 |
|
|
u_long start;
|
| 280 |
|
|
u_long base_page;
|
| 281 |
|
|
u_long base_offset;
|
| 282 |
|
|
int error;
|
| 283 |
|
|
|
| 284 |
|
|
if (aic79xx_allow_memio == 0)
|
| 285 |
|
|
return (ENOMEM);
|
| 286 |
|
|
|
| 287 |
|
|
if ((ahd->bugs & AHD_PCIX_MMAPIO_BUG) != 0)
|
| 288 |
|
|
return (ENOMEM);
|
| 289 |
|
|
|
| 290 |
|
|
error = 0;
|
| 291 |
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0)
|
| 292 |
|
|
start = pci_resource_start(ahd->dev_softc, 1);
|
| 293 |
|
|
base_page = start & PAGE_MASK;
|
| 294 |
|
|
base_offset = start - base_page;
|
| 295 |
|
|
#else
|
| 296 |
|
|
start = ahd_pci_read_config(ahd->dev_softc, PCIR_MAPS+4, 4);
|
| 297 |
|
|
base_offset = start & PCI_BASE_ADDRESS_MEM_MASK;
|
| 298 |
|
|
base_page = base_offset & PAGE_MASK;
|
| 299 |
|
|
base_offset -= base_page;
|
| 300 |
|
|
#endif
|
| 301 |
|
|
if (start != 0) {
|
| 302 |
|
|
*bus_addr = start;
|
| 303 |
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
|
| 304 |
|
|
if (request_mem_region(start, 0x1000, "aic79xx") == 0)
|
| 305 |
|
|
error = ENOMEM;
|
| 306 |
|
|
#endif
|
| 307 |
|
|
if (error == 0) {
|
| 308 |
|
|
*maddr = ioremap_nocache(base_page, base_offset + 256);
|
| 309 |
|
|
if (*maddr == NULL) {
|
| 310 |
|
|
error = ENOMEM;
|
| 311 |
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
|
| 312 |
|
|
release_mem_region(start, 0x1000);
|
| 313 |
|
|
#endif
|
| 314 |
|
|
} else
|
| 315 |
|
|
*maddr += base_offset;
|
| 316 |
|
|
}
|
| 317 |
|
|
} else
|
| 318 |
|
|
error = ENOMEM;
|
| 319 |
|
|
return (error);
|
| 320 |
|
|
}
|
| 321 |
|
|
|
| 322 |
|
|
int
|
| 323 |
|
|
ahd_pci_map_registers(struct ahd_softc *ahd)
|
| 324 |
|
|
{
|
| 325 |
|
|
uint32_t command;
|
| 326 |
|
|
u_long base;
|
| 327 |
|
|
uint8_t *maddr;
|
| 328 |
|
|
int error;
|
| 329 |
|
|
|
| 330 |
|
|
/*
|
| 331 |
|
|
* If its allowed, we prefer memory mapped access.
|
| 332 |
|
|
*/
|
| 333 |
|
|
command = ahd_pci_read_config(ahd->dev_softc, PCIR_COMMAND, 4);
|
| 334 |
|
|
command &= ~(PCIM_CMD_PORTEN|PCIM_CMD_MEMEN);
|
| 335 |
|
|
base = 0;
|
| 336 |
|
|
maddr = NULL;
|
| 337 |
|
|
#ifdef MMAPIO
|
| 338 |
|
|
error = ahd_linux_pci_reserve_mem_region(ahd, &base, &maddr);
|
| 339 |
|
|
if (error == 0) {
|
| 340 |
|
|
ahd->platform_data->mem_busaddr = base;
|
| 341 |
|
|
ahd->tags[0] = BUS_SPACE_MEMIO;
|
| 342 |
|
|
ahd->bshs[0].maddr = maddr;
|
| 343 |
|
|
ahd->tags[1] = BUS_SPACE_MEMIO;
|
| 344 |
|
|
ahd->bshs[1].maddr = maddr + 0x100;
|
| 345 |
|
|
ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND,
|
| 346 |
|
|
command | PCIM_CMD_MEMEN, 4);
|
| 347 |
|
|
|
| 348 |
|
|
if (ahd_pci_test_register_access(ahd) != 0) {
|
| 349 |
|
|
|
| 350 |
|
|
printf("aic79xx: PCI Device %d:%d:%d "
|
| 351 |
|
|
"failed memory mapped test. Using PIO.\n",
|
| 352 |
|
|
ahd_get_pci_bus(ahd->dev_softc),
|
| 353 |
|
|
ahd_get_pci_slot(ahd->dev_softc),
|
| 354 |
|
|
ahd_get_pci_function(ahd->dev_softc));
|
| 355 |
|
|
iounmap((void *)((u_long)maddr & PAGE_MASK));
|
| 356 |
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
|
| 357 |
|
|
release_mem_region(ahd->platform_data->mem_busaddr,
|
| 358 |
|
|
0x1000);
|
| 359 |
|
|
#endif
|
| 360 |
|
|
ahd->bshs[0].maddr = NULL;
|
| 361 |
|
|
maddr = NULL;
|
| 362 |
|
|
} else
|
| 363 |
|
|
command |= PCIM_CMD_MEMEN;
|
| 364 |
|
|
} else if (bootverbose) {
|
| 365 |
|
|
printf("aic79xx: PCI%d:%d:%d MEM region 0x%lx "
|
| 366 |
|
|
"unavailable. Cannot memory map device.\n",
|
| 367 |
|
|
ahd_get_pci_bus(ahd->dev_softc),
|
| 368 |
|
|
ahd_get_pci_slot(ahd->dev_softc),
|
| 369 |
|
|
ahd_get_pci_function(ahd->dev_softc),
|
| 370 |
|
|
base);
|
| 371 |
|
|
}
|
| 372 |
|
|
#endif
|
| 373 |
|
|
|
| 374 |
|
|
if (maddr == NULL) {
|
| 375 |
|
|
u_long base2;
|
| 376 |
|
|
|
| 377 |
|
|
error = ahd_linux_pci_reserve_io_regions(ahd, &base, &base2);
|
| 378 |
|
|
if (error == 0) {
|
| 379 |
|
|
ahd->tags[0] = BUS_SPACE_PIO;
|
| 380 |
|
|
ahd->tags[1] = BUS_SPACE_PIO;
|
| 381 |
|
|
ahd->bshs[0].ioport = base;
|
| 382 |
|
|
ahd->bshs[1].ioport = base2;
|
| 383 |
|
|
command |= PCIM_CMD_PORTEN;
|
| 384 |
|
|
} else {
|
| 385 |
|
|
printf("aic79xx: PCI%d:%d:%d IO regions 0x%lx and 0x%lx"
|
| 386 |
|
|
"unavailable. Cannot map device.\n",
|
| 387 |
|
|
ahd_get_pci_bus(ahd->dev_softc),
|
| 388 |
|
|
ahd_get_pci_slot(ahd->dev_softc),
|
| 389 |
|
|
ahd_get_pci_function(ahd->dev_softc),
|
| 390 |
|
|
base, base2);
|
| 391 |
|
|
}
|
| 392 |
|
|
}
|
| 393 |
|
|
ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND, command, 4);
|
| 394 |
|
|
return (error);
|
| 395 |
|
|
}
|
| 396 |
|
|
|
| 397 |
|
|
int
|
| 398 |
|
|
ahd_pci_map_int(struct ahd_softc *ahd)
|
| 399 |
|
|
{
|
| 400 |
|
|
int error;
|
| 401 |
|
|
|
| 402 |
|
|
error = request_irq(ahd->dev_softc->irq, ahd_linux_isr,
|
| 403 |
|
|
SA_SHIRQ, "aic79xx", ahd);
|
| 404 |
|
|
if (error == 0)
|
| 405 |
|
|
ahd->platform_data->irq = ahd->dev_softc->irq;
|
| 406 |
|
|
|
| 407 |
|
|
return (-error);
|
| 408 |
|
|
}
|
| 409 |
|
|
|
| 410 |
|
|
void
|
| 411 |
|
|
ahd_power_state_change(struct ahd_softc *ahd, ahd_power_state new_state)
|
| 412 |
|
|
{
|
| 413 |
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
|
| 414 |
|
|
pci_set_power_state(ahd->dev_softc, new_state);
|
| 415 |
|
|
#else
|
| 416 |
|
|
uint32_t cap;
|
| 417 |
|
|
u_int cap_offset;
|
| 418 |
|
|
|
| 419 |
|
|
/*
|
| 420 |
|
|
* Traverse the capability list looking for
|
| 421 |
|
|
* the power management capability.
|
| 422 |
|
|
*/
|
| 423 |
|
|
cap = 0;
|
| 424 |
|
|
cap_offset = ahd_pci_read_config(ahd->dev_softc,
|
| 425 |
|
|
PCIR_CAP_PTR, /*bytes*/1);
|
| 426 |
|
|
while (cap_offset != 0) {
|
| 427 |
|
|
|
| 428 |
|
|
cap = ahd_pci_read_config(ahd->dev_softc,
|
| 429 |
|
|
cap_offset, /*bytes*/4);
|
| 430 |
|
|
if ((cap & 0xFF) == 1
|
| 431 |
|
|
&& ((cap >> 16) & 0x3) > 0) {
|
| 432 |
|
|
uint32_t pm_control;
|
| 433 |
|
|
|
| 434 |
|
|
pm_control = ahd_pci_read_config(ahd->dev_softc,
|
| 435 |
|
|
cap_offset + 4,
|
| 436 |
|
|
/*bytes*/4);
|
| 437 |
|
|
pm_control &= ~0x3;
|
| 438 |
|
|
pm_control |= new_state;
|
| 439 |
|
|
ahd_pci_write_config(ahd->dev_softc,
|
| 440 |
|
|
cap_offset + 4,
|
| 441 |
|
|
pm_control, /*bytes*/2);
|
| 442 |
|
|
break;
|
| 443 |
|
|
}
|
| 444 |
|
|
cap_offset = (cap >> 8) & 0xFF;
|
| 445 |
|
|
}
|
| 446 |
|
|
#endif
|
| 447 |
|
|
}
|
