patch-2.4.19 linux-2.4.19/drivers/scsi/aic7xxx/aic7xxx_linux_pci.c

• Lines: 408
• Date: Wed Dec 31 16:00:00 1969
• Orig file: linux-2.4.18/drivers/scsi/aic7xxx/aic7xxx_linux_pci.c
• Orig date: Tue Nov 13 09:19:41 2001

diff -urN linux-2.4.18/drivers/scsi/aic7xxx/aic7xxx_linux_pci.c linux-2.4.19/drivers/scsi/aic7xxx/aic7xxx_linux_pci.c
@@ -1,407 +0,0 @@
-/*
- * Linux driver attachment glue for PCI based 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/aic7xxx_linux_pci.c#27 $
- */
-
-#include "aic7xxx_osm.h"
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0)
-struct pci_device_id
-{
-};
-#endif
-
-static int	ahc_linux_pci_dev_probe(struct pci_dev *pdev,
-					const struct pci_device_id *ent);
-static int	ahc_linux_pci_reserve_io_region(struct ahc_softc *ahc,
-						u_long *base);
-#ifdef MMAPIO
-static int	ahc_linux_pci_reserve_mem_region(struct ahc_softc *ahc,
-						 u_long *bus_addr,
-						 uint8_t **maddr);
-#endif /* MMAPIO */
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
-static void	ahc_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 ahc_linux_pci_id_table[] = {
-	{
-		0x9004, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
-		PCI_CLASS_STORAGE_SCSI << 8, 0xFFFF00, 0
-	},
-	{
-		0x9005, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
-		PCI_CLASS_STORAGE_SCSI << 8, 0xFFFF00, 0
-	},
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, ahc_linux_pci_id_table);
-
-struct pci_driver aic7xxx_pci_driver = {
-	name:		"aic7xxx",
-	probe:		ahc_linux_pci_dev_probe,
-	remove:		ahc_linux_pci_dev_remove,
-	id_table:	ahc_linux_pci_id_table
-};
-
-static void
-ahc_linux_pci_dev_remove(struct pci_dev *pdev)
-{
-	struct ahc_softc *ahc;
-	struct ahc_softc *list_ahc;
-
-	/*
-	 * We should be able to just perform
-	 * the free directly, but check our
-	 * list for extra sanity.
-	 */
-	ahc = pci_get_drvdata(pdev);
-	TAILQ_FOREACH(list_ahc, &ahc_tailq, links) {
-		if (list_ahc == ahc) {
-			ahc_free(ahc);
-			break;
-		}
-	}
-}
-#endif /* !LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0) */
-
-static int
-ahc_linux_pci_dev_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
-{
-	char		 buf[80];
-	struct		 ahc_softc *ahc;
-	ahc_dev_softc_t	 pci;
-	struct		 ahc_pci_identity *entry;
-	char		*name;
-	int		 error;
-
-	/*
-	 * Some BIOSen report the same device multiple times.
-	 */
-	TAILQ_FOREACH(ahc, &ahc_tailq, links) {
-		struct pci_dev *probed_pdev;
-
-		probed_pdev = ahc->dev_softc;
-		if (probed_pdev->bus->number == pdev->bus->number
-		 && probed_pdev->devfn == pdev->devfn)
-			break;
-	}
-	if (ahc != NULL) {
-		/* Skip duplicate. */
-		return (-ENODEV);
-	}
-
-	pci = pdev;
-	entry = ahc_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, "ahc_pci:%d:%d:%d",
-		ahc_get_pci_bus(pci),
-		ahc_get_pci_slot(pci),
-		ahc_get_pci_function(pci));
-	name = malloc(strlen(buf) + 1, M_DEVBUF, M_NOWAIT);
-	if (name == NULL)
-		return (-ENOMEM);
-	strcpy(name, buf);
-	ahc = ahc_alloc(NULL, name);
-	if (ahc == NULL)
-		return (-ENOMEM);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
-	if (pci_enable_device(pdev)) {
-		ahc_free(ahc);
-		return (-ENODEV);
-	}
-	pci_set_master(pdev);
-
-	if (sizeof(bus_addr_t) > 4
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,3)
-	 && ahc_linux_get_memsize() > 0x80000000
-	 && pci_set_dma_mask(pdev, 0x7FFFFFFFFFULL) == 0) {
-#else
-	 && ahc_linux_get_memsize() > 0x80000000) {
-
-		ahc->dev_softc->dma_mask = 
-		    (bus_addr_t)(0x7FFFFFFFFFULL & (bus_addr_t)~0);
-#endif
-		ahc->flags |= AHC_39BIT_ADDRESSING;
-		ahc->platform_data->hw_dma_mask =
-		    (bus_addr_t)(0x7FFFFFFFFFULL & (bus_addr_t)~0);
-	}
-#endif
-	ahc->dev_softc = pci;
-	ahc->platform_data->irq = pdev->irq;
-	error = ahc_pci_config(ahc, entry);
-	if (error != 0) {
-		ahc_free(ahc);
-		return (-error);
-	}
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
-	pci_set_drvdata(pdev, ahc);
-	if (aic7xxx_detect_complete)
-		ahc_linux_register_host(ahc, aic7xxx_driver_template);
-#endif
-	return (0);
-}
-
-int
-ahc_linux_pci_probe(Scsi_Host_Template *template)
-{
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
-	return (pci_module_init(&aic7xxx_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) {
-		ahc_dev_softc_t pci;
-		int error;
-
-		pci = pdev;
-		error = ahc_linux_pci_dev_probe(pdev, /*pci_devid*/NULL);
-		if (error == 0)
-			found++;
-	}
-	return (found);
-#endif
-}
-
-static int
-ahc_linux_pci_reserve_io_region(struct ahc_softc *ahc, u_long *base)
-{
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0)
-	*base = pci_resource_start(ahc->dev_softc, 0);
-#else
-	*base = ahc_pci_read_config(ahc->dev_softc, PCIR_MAPS, 4);
-	*base &= PCI_BASE_ADDRESS_IO_MASK;
-#endif
-	if (base == 0)
-		return (ENOMEM);
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0)
-	if (check_region(*base, 256) != 0)
-		return (ENOMEM);
-	else
-		request_region(*base, 256, "aic7xxx");
-#else
-	if (request_region(*base, 256, "aic7xxx") == 0)
-		return (ENOMEM);
-#endif
-	return (0);
-}
-
-#ifdef MMAPIO
-static int
-ahc_linux_pci_reserve_mem_region(struct ahc_softc *ahc,
-				 u_long *bus_addr,
-				 uint8_t **maddr)
-{
-	u_long	start;
-	u_long	base_page;
-	u_long	base_offset;
-	int	error;
-
-	error = 0;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0)
-	start = pci_resource_start(ahc->dev_softc, 1);
-	base_page = start & PAGE_MASK;
-	base_offset = start - base_page;
-#else
-	start = ahc_pci_read_config(ahc->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, "aic7xxx") == 0)
-			error = ENOMEM;
-#endif
-		if (error == 0) {
-			*maddr = ioremap_nocache(base_page, base_offset + 256);
-			if (*maddr == NULL)
-				error = ENOMEM;
-			else
-				*maddr += base_offset;
-		}
-	} else
-		error = ENOMEM;
-	return (error);
-}
-#endif /* MMAPIO */
-
-int
-ahc_pci_map_registers(struct ahc_softc *ahc)
-{
-	uint32_t command;
-	u_long	 base;
-	uint8_t	*maddr;
-	int	 error;
-	int	 io_error;
-
-	/*
-	 * We always reserve both our register spaces to avoid
-	 * other devices claiming them.
-	 */
-	command = ahc_pci_read_config(ahc->dev_softc, PCIR_COMMAND, 4);
-	command &= ~(PCIM_CMD_PORTEN|PCIM_CMD_MEMEN);
-	base = 0;
-	maddr = NULL;
-#ifdef MMAPIO
-	error = ahc_linux_pci_reserve_mem_region(ahc, &base, &maddr);
-	if (error == 0) {
-		ahc->platform_data->mem_busaddr = base;
-		ahc->tag = BUS_SPACE_MEMIO;
-		ahc->bsh.maddr = maddr;
-		ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND,
-				     command | PCIM_CMD_MEMEN, 4);
-
-		/*
-		 * Do a quick test to see if memory mapped
-		 * I/O is functioning correctly.
-		 */
-		if (ahc_inb(ahc, HCNTRL) == 0xFF) {
-
-			printf("aic7xxx: PCI Device %d:%d:%d "
-			       "failed memory mapped test\n",
-			       ahc_get_pci_bus(ahc->dev_softc),
-			       ahc_get_pci_slot(ahc->dev_softc),
-			       ahc_get_pci_function(ahc->dev_softc));
-			maddr = NULL;
-		} else
-			command |= PCIM_CMD_MEMEN;
-	} else {
-		printf("aic7xxx: PCI%d:%d:%d MEM region 0x%lx "
-		       "unavailable. Cannot map device.\n",
-		       ahc_get_pci_bus(ahc->dev_softc),
-		       ahc_get_pci_slot(ahc->dev_softc),
-		       ahc_get_pci_function(ahc->dev_softc),
-		       base);
-	}
-#endif
-
-	/*
-	 * We always prefer memory mapped access.  Only
-	 * complain about our ioport conflicting with
-	 * another device if we are going to use it.
-	 */
-	io_error = ahc_linux_pci_reserve_io_region(ahc, &base);
-	if (maddr == NULL) {
-		error = io_error;
-		if (error != 0) {
-			printf("aic7xxx: PCI%d:%d:%d IO region 0x%lx[0..255] "
-			       "unavailable. Cannot map device.\n",
-			       ahc_get_pci_bus(ahc->dev_softc),
-			       ahc_get_pci_slot(ahc->dev_softc),
-			       ahc_get_pci_function(ahc->dev_softc),
-			       base);
-			base = 0;
-		} else {
-			ahc->tag = BUS_SPACE_PIO;
-			ahc->bsh.ioport = base;
-			command |= PCIM_CMD_PORTEN;
-		}
-	}
-	ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND, command, 4);
-	return (error);
-}
-
-int
-ahc_pci_map_int(struct ahc_softc *ahc)
-{
-	int error;
-
-	ahc->platform_data->irq = ahc->dev_softc->irq;
-	error = request_irq(ahc->platform_data->irq, ahc_linux_isr,
-			    SA_SHIRQ, "aic7xxx", ahc);
-	
-	return (-error);
-}
-
-void
-ahc_power_state_change(struct ahc_softc *ahc, ahc_power_state new_state)
-{
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
-	pci_set_power_state(ahc->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 = ahc_pci_read_config(ahc->dev_softc,
-					 PCIR_CAP_PTR, /*bytes*/1);
-	while (cap_offset != 0) {
-
-		cap = ahc_pci_read_config(ahc->dev_softc,
-					  cap_offset, /*bytes*/4);
-		if ((cap & 0xFF) == 1
-		 && ((cap >> 16) & 0x3) > 0) {
-			uint32_t pm_control;
-
-			pm_control = ahc_pci_read_config(ahc->dev_softc,
-							 cap_offset + 4,
-							 /*bytes*/4);
-			pm_control &= ~0x3;
-			pm_control |= new_state;
-			ahc_pci_write_config(ahc->dev_softc,
-					     cap_offset + 4,
-					     pm_control, /*bytes*/2);
-			break;
-		}
-		cap_offset = (cap >> 8) & 0xFF;
-	}
-#endif 
-}