![Bjorn Helgaas](/assets/img/avatar_default.png)
pnp_dbg() is equivalent to dev_dbg() except that we can turn it on at boot-time with the "pnp.debug" kernel parameter, so we don't have to build a new kernel image. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
1127 lines
30 KiB
C
1127 lines
30 KiB
C
/*
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* pnpacpi -- PnP ACPI driver
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*
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* Copyright (c) 2004 Matthieu Castet <castet.matthieu@free.fr>
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* Copyright (c) 2004 Li Shaohua <shaohua.li@intel.com>
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* Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
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* Bjorn Helgaas <bjorn.helgaas@hp.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/kernel.h>
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#include <linux/acpi.h>
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#include <linux/pci.h>
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#include <linux/pnp.h>
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#include "../base.h"
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#include "pnpacpi.h"
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#ifdef CONFIG_IA64
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#define valid_IRQ(i) (1)
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#else
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#define valid_IRQ(i) (((i) != 0) && ((i) != 2))
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#endif
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/*
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* Allocated Resources
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*/
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static int irq_flags(int triggering, int polarity, int shareable)
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{
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int flags;
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if (triggering == ACPI_LEVEL_SENSITIVE) {
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if (polarity == ACPI_ACTIVE_LOW)
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flags = IORESOURCE_IRQ_LOWLEVEL;
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else
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flags = IORESOURCE_IRQ_HIGHLEVEL;
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} else {
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if (polarity == ACPI_ACTIVE_LOW)
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flags = IORESOURCE_IRQ_LOWEDGE;
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else
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flags = IORESOURCE_IRQ_HIGHEDGE;
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}
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if (shareable == ACPI_SHARED)
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flags |= IORESOURCE_IRQ_SHAREABLE;
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return flags;
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}
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static void decode_irq_flags(struct pnp_dev *dev, int flags, int *triggering,
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int *polarity, int *shareable)
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{
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switch (flags & (IORESOURCE_IRQ_LOWLEVEL | IORESOURCE_IRQ_HIGHLEVEL |
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IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE)) {
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case IORESOURCE_IRQ_LOWLEVEL:
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*triggering = ACPI_LEVEL_SENSITIVE;
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*polarity = ACPI_ACTIVE_LOW;
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break;
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case IORESOURCE_IRQ_HIGHLEVEL:
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*triggering = ACPI_LEVEL_SENSITIVE;
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*polarity = ACPI_ACTIVE_HIGH;
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break;
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case IORESOURCE_IRQ_LOWEDGE:
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*triggering = ACPI_EDGE_SENSITIVE;
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*polarity = ACPI_ACTIVE_LOW;
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break;
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case IORESOURCE_IRQ_HIGHEDGE:
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*triggering = ACPI_EDGE_SENSITIVE;
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*polarity = ACPI_ACTIVE_HIGH;
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break;
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default:
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dev_err(&dev->dev, "can't encode invalid IRQ mode %#x\n",
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flags);
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*triggering = ACPI_EDGE_SENSITIVE;
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*polarity = ACPI_ACTIVE_HIGH;
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break;
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}
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if (flags & IORESOURCE_IRQ_SHAREABLE)
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*shareable = ACPI_SHARED;
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else
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*shareable = ACPI_EXCLUSIVE;
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}
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static void pnpacpi_parse_allocated_irqresource(struct pnp_dev *dev,
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u32 gsi, int triggering,
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int polarity, int shareable)
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{
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int irq, flags;
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int p, t;
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if (!valid_IRQ(gsi)) {
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pnp_add_irq_resource(dev, gsi, IORESOURCE_DISABLED);
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return;
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}
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/*
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* in IO-APIC mode, use overrided attribute. Two reasons:
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* 1. BIOS bug in DSDT
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* 2. BIOS uses IO-APIC mode Interrupt Source Override
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*/
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if (!acpi_get_override_irq(gsi, &t, &p)) {
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t = t ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
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p = p ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
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if (triggering != t || polarity != p) {
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dev_warn(&dev->dev, "IRQ %d override to %s, %s\n",
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gsi, t ? "edge":"level", p ? "low":"high");
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triggering = t;
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polarity = p;
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}
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}
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flags = irq_flags(triggering, polarity, shareable);
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irq = acpi_register_gsi(gsi, triggering, polarity);
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if (irq >= 0)
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pcibios_penalize_isa_irq(irq, 1);
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else
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flags |= IORESOURCE_DISABLED;
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pnp_add_irq_resource(dev, irq, flags);
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}
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static int dma_flags(struct pnp_dev *dev, int type, int bus_master,
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int transfer)
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{
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int flags = 0;
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if (bus_master)
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flags |= IORESOURCE_DMA_MASTER;
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switch (type) {
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case ACPI_COMPATIBILITY:
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flags |= IORESOURCE_DMA_COMPATIBLE;
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break;
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case ACPI_TYPE_A:
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flags |= IORESOURCE_DMA_TYPEA;
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break;
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case ACPI_TYPE_B:
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flags |= IORESOURCE_DMA_TYPEB;
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break;
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case ACPI_TYPE_F:
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flags |= IORESOURCE_DMA_TYPEF;
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break;
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default:
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/* Set a default value ? */
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flags |= IORESOURCE_DMA_COMPATIBLE;
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dev_err(&dev->dev, "invalid DMA type %d\n", type);
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}
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switch (transfer) {
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case ACPI_TRANSFER_8:
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flags |= IORESOURCE_DMA_8BIT;
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break;
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case ACPI_TRANSFER_8_16:
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flags |= IORESOURCE_DMA_8AND16BIT;
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break;
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case ACPI_TRANSFER_16:
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flags |= IORESOURCE_DMA_16BIT;
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break;
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default:
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/* Set a default value ? */
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flags |= IORESOURCE_DMA_8AND16BIT;
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dev_err(&dev->dev, "invalid DMA transfer type %d\n", transfer);
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}
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return flags;
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}
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static void pnpacpi_parse_allocated_ioresource(struct pnp_dev *dev, u64 start,
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u64 len, int io_decode)
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{
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int flags = 0;
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u64 end = start + len - 1;
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if (io_decode == ACPI_DECODE_16)
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flags |= IORESOURCE_IO_16BIT_ADDR;
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if (len == 0 || end >= 0x10003)
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flags |= IORESOURCE_DISABLED;
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pnp_add_io_resource(dev, start, end, flags);
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}
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/*
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* Device CSRs that do not appear in PCI config space should be described
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* via ACPI. This would normally be done with Address Space Descriptors
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* marked as "consumer-only," but old versions of Windows and Linux ignore
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* the producer/consumer flag, so HP invented a vendor-defined resource to
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* describe the location and size of CSR space.
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*/
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static struct acpi_vendor_uuid hp_ccsr_uuid = {
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.subtype = 2,
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.data = { 0xf9, 0xad, 0xe9, 0x69, 0x4f, 0x92, 0x5f, 0xab, 0xf6, 0x4a,
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0x24, 0xd2, 0x01, 0x37, 0x0e, 0xad },
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};
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static int vendor_resource_matches(struct pnp_dev *dev,
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struct acpi_resource_vendor_typed *vendor,
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struct acpi_vendor_uuid *match,
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int expected_len)
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{
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int uuid_len = sizeof(vendor->uuid);
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u8 uuid_subtype = vendor->uuid_subtype;
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u8 *uuid = vendor->uuid;
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int actual_len;
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/* byte_length includes uuid_subtype and uuid */
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actual_len = vendor->byte_length - uuid_len - 1;
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if (uuid_subtype == match->subtype &&
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uuid_len == sizeof(match->data) &&
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memcmp(uuid, match->data, uuid_len) == 0) {
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if (expected_len && expected_len != actual_len) {
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dev_err(&dev->dev, "wrong vendor descriptor size; "
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"expected %d, found %d bytes\n",
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expected_len, actual_len);
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return 0;
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}
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return 1;
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}
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return 0;
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}
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static void pnpacpi_parse_allocated_vendor(struct pnp_dev *dev,
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struct acpi_resource_vendor_typed *vendor)
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{
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if (vendor_resource_matches(dev, vendor, &hp_ccsr_uuid, 16)) {
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u64 start, length;
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memcpy(&start, vendor->byte_data, sizeof(start));
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memcpy(&length, vendor->byte_data + 8, sizeof(length));
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pnp_add_mem_resource(dev, start, start + length - 1, 0);
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}
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}
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static void pnpacpi_parse_allocated_memresource(struct pnp_dev *dev,
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u64 start, u64 len,
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int write_protect)
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{
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int flags = 0;
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u64 end = start + len - 1;
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if (len == 0)
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flags |= IORESOURCE_DISABLED;
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if (write_protect == ACPI_READ_WRITE_MEMORY)
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flags |= IORESOURCE_MEM_WRITEABLE;
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pnp_add_mem_resource(dev, start, end, flags);
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}
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static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev,
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struct acpi_resource *res)
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{
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struct acpi_resource_address64 addr, *p = &addr;
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acpi_status status;
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status = acpi_resource_to_address64(res, p);
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if (!ACPI_SUCCESS(status)) {
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dev_warn(&dev->dev, "failed to convert resource type %d\n",
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res->type);
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return;
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}
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if (p->producer_consumer == ACPI_PRODUCER)
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return;
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if (p->resource_type == ACPI_MEMORY_RANGE)
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pnpacpi_parse_allocated_memresource(dev,
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p->minimum, p->address_length,
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p->info.mem.write_protect);
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else if (p->resource_type == ACPI_IO_RANGE)
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pnpacpi_parse_allocated_ioresource(dev,
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p->minimum, p->address_length,
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p->granularity == 0xfff ? ACPI_DECODE_10 :
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ACPI_DECODE_16);
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}
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static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
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void *data)
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{
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struct pnp_dev *dev = data;
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struct acpi_resource_irq *irq;
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struct acpi_resource_dma *dma;
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struct acpi_resource_io *io;
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struct acpi_resource_fixed_io *fixed_io;
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struct acpi_resource_vendor_typed *vendor_typed;
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struct acpi_resource_memory24 *memory24;
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struct acpi_resource_memory32 *memory32;
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struct acpi_resource_fixed_memory32 *fixed_memory32;
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struct acpi_resource_extended_irq *extended_irq;
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int i, flags;
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switch (res->type) {
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case ACPI_RESOURCE_TYPE_IRQ:
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/*
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* Per spec, only one interrupt per descriptor is allowed in
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* _CRS, but some firmware violates this, so parse them all.
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*/
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irq = &res->data.irq;
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if (irq->interrupt_count == 0)
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pnp_add_irq_resource(dev, 0, IORESOURCE_DISABLED);
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else {
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for (i = 0; i < irq->interrupt_count; i++) {
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pnpacpi_parse_allocated_irqresource(dev,
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irq->interrupts[i],
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irq->triggering,
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irq->polarity,
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irq->sharable);
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}
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/*
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* The IRQ encoder puts a single interrupt in each
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* descriptor, so if a _CRS descriptor has more than
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* one interrupt, we won't be able to re-encode it.
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*/
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if (pnp_can_write(dev) && irq->interrupt_count > 1) {
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dev_warn(&dev->dev, "multiple interrupts in "
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"_CRS descriptor; configuration can't "
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"be changed\n");
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dev->capabilities &= ~PNP_WRITE;
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}
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}
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break;
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case ACPI_RESOURCE_TYPE_DMA:
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dma = &res->data.dma;
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if (dma->channel_count > 0 && dma->channels[0] != (u8) -1)
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flags = dma_flags(dev, dma->type, dma->bus_master,
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dma->transfer);
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else
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flags = IORESOURCE_DISABLED;
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pnp_add_dma_resource(dev, dma->channels[0], flags);
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break;
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case ACPI_RESOURCE_TYPE_IO:
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io = &res->data.io;
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pnpacpi_parse_allocated_ioresource(dev,
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io->minimum,
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io->address_length,
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io->io_decode);
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break;
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case ACPI_RESOURCE_TYPE_START_DEPENDENT:
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case ACPI_RESOURCE_TYPE_END_DEPENDENT:
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break;
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case ACPI_RESOURCE_TYPE_FIXED_IO:
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fixed_io = &res->data.fixed_io;
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pnpacpi_parse_allocated_ioresource(dev,
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fixed_io->address,
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fixed_io->address_length,
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ACPI_DECODE_10);
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break;
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case ACPI_RESOURCE_TYPE_VENDOR:
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vendor_typed = &res->data.vendor_typed;
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pnpacpi_parse_allocated_vendor(dev, vendor_typed);
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break;
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case ACPI_RESOURCE_TYPE_END_TAG:
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break;
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case ACPI_RESOURCE_TYPE_MEMORY24:
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memory24 = &res->data.memory24;
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pnpacpi_parse_allocated_memresource(dev,
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memory24->minimum,
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memory24->address_length,
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memory24->write_protect);
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break;
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case ACPI_RESOURCE_TYPE_MEMORY32:
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memory32 = &res->data.memory32;
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pnpacpi_parse_allocated_memresource(dev,
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memory32->minimum,
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memory32->address_length,
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memory32->write_protect);
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break;
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case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
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fixed_memory32 = &res->data.fixed_memory32;
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pnpacpi_parse_allocated_memresource(dev,
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fixed_memory32->address,
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fixed_memory32->address_length,
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fixed_memory32->write_protect);
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break;
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case ACPI_RESOURCE_TYPE_ADDRESS16:
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case ACPI_RESOURCE_TYPE_ADDRESS32:
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case ACPI_RESOURCE_TYPE_ADDRESS64:
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pnpacpi_parse_allocated_address_space(dev, res);
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break;
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case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
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if (res->data.ext_address64.producer_consumer == ACPI_PRODUCER)
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return AE_OK;
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break;
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case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
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extended_irq = &res->data.extended_irq;
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if (extended_irq->interrupt_count == 0)
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pnp_add_irq_resource(dev, 0, IORESOURCE_DISABLED);
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else {
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for (i = 0; i < extended_irq->interrupt_count; i++) {
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pnpacpi_parse_allocated_irqresource(dev,
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extended_irq->interrupts[i],
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extended_irq->triggering,
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extended_irq->polarity,
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extended_irq->sharable);
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}
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/*
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* The IRQ encoder puts a single interrupt in each
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* descriptor, so if a _CRS descriptor has more than
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* one interrupt, we won't be able to re-encode it.
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*/
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if (pnp_can_write(dev) &&
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extended_irq->interrupt_count > 1) {
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dev_warn(&dev->dev, "multiple interrupts in "
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"_CRS descriptor; configuration can't "
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"be changed\n");
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dev->capabilities &= ~PNP_WRITE;
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}
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}
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break;
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case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
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break;
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default:
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dev_warn(&dev->dev, "unknown resource type %d in _CRS\n",
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res->type);
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return AE_ERROR;
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}
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return AE_OK;
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}
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int pnpacpi_parse_allocated_resource(struct pnp_dev *dev)
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{
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acpi_handle handle = dev->data;
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acpi_status status;
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pnp_dbg(&dev->dev, "parse allocated resources\n");
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pnp_init_resources(dev);
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status = acpi_walk_resources(handle, METHOD_NAME__CRS,
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pnpacpi_allocated_resource, dev);
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if (ACPI_FAILURE(status)) {
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if (status != AE_NOT_FOUND)
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dev_err(&dev->dev, "can't evaluate _CRS: %d", status);
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return -EPERM;
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}
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return 0;
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}
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static __init void pnpacpi_parse_dma_option(struct pnp_dev *dev,
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unsigned int option_flags,
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struct acpi_resource_dma *p)
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{
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int i;
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unsigned char map = 0, flags;
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if (p->channel_count == 0)
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return;
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for (i = 0; i < p->channel_count; i++)
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map |= 1 << p->channels[i];
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flags = dma_flags(dev, p->type, p->bus_master, p->transfer);
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pnp_register_dma_resource(dev, option_flags, map, flags);
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}
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static __init void pnpacpi_parse_irq_option(struct pnp_dev *dev,
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unsigned int option_flags,
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struct acpi_resource_irq *p)
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{
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int i;
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pnp_irq_mask_t map;
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unsigned char flags;
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if (p->interrupt_count == 0)
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return;
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bitmap_zero(map.bits, PNP_IRQ_NR);
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for (i = 0; i < p->interrupt_count; i++)
|
|
if (p->interrupts[i])
|
|
__set_bit(p->interrupts[i], map.bits);
|
|
|
|
flags = irq_flags(p->triggering, p->polarity, p->sharable);
|
|
pnp_register_irq_resource(dev, option_flags, &map, flags);
|
|
}
|
|
|
|
static __init void pnpacpi_parse_ext_irq_option(struct pnp_dev *dev,
|
|
unsigned int option_flags,
|
|
struct acpi_resource_extended_irq *p)
|
|
{
|
|
int i;
|
|
pnp_irq_mask_t map;
|
|
unsigned char flags;
|
|
|
|
if (p->interrupt_count == 0)
|
|
return;
|
|
|
|
bitmap_zero(map.bits, PNP_IRQ_NR);
|
|
for (i = 0; i < p->interrupt_count; i++) {
|
|
if (p->interrupts[i]) {
|
|
if (p->interrupts[i] < PNP_IRQ_NR)
|
|
__set_bit(p->interrupts[i], map.bits);
|
|
else
|
|
dev_err(&dev->dev, "ignoring IRQ %d option "
|
|
"(too large for %d entry bitmap)\n",
|
|
p->interrupts[i], PNP_IRQ_NR);
|
|
}
|
|
}
|
|
|
|
flags = irq_flags(p->triggering, p->polarity, p->sharable);
|
|
pnp_register_irq_resource(dev, option_flags, &map, flags);
|
|
}
|
|
|
|
static __init void pnpacpi_parse_port_option(struct pnp_dev *dev,
|
|
unsigned int option_flags,
|
|
struct acpi_resource_io *io)
|
|
{
|
|
unsigned char flags = 0;
|
|
|
|
if (io->address_length == 0)
|
|
return;
|
|
|
|
if (io->io_decode == ACPI_DECODE_16)
|
|
flags = IORESOURCE_IO_16BIT_ADDR;
|
|
pnp_register_port_resource(dev, option_flags, io->minimum, io->maximum,
|
|
io->alignment, io->address_length, flags);
|
|
}
|
|
|
|
static __init void pnpacpi_parse_fixed_port_option(struct pnp_dev *dev,
|
|
unsigned int option_flags,
|
|
struct acpi_resource_fixed_io *io)
|
|
{
|
|
if (io->address_length == 0)
|
|
return;
|
|
|
|
pnp_register_port_resource(dev, option_flags, io->address, io->address,
|
|
0, io->address_length, IORESOURCE_IO_FIXED);
|
|
}
|
|
|
|
static __init void pnpacpi_parse_mem24_option(struct pnp_dev *dev,
|
|
unsigned int option_flags,
|
|
struct acpi_resource_memory24 *p)
|
|
{
|
|
unsigned char flags = 0;
|
|
|
|
if (p->address_length == 0)
|
|
return;
|
|
|
|
if (p->write_protect == ACPI_READ_WRITE_MEMORY)
|
|
flags = IORESOURCE_MEM_WRITEABLE;
|
|
pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum,
|
|
p->alignment, p->address_length, flags);
|
|
}
|
|
|
|
static __init void pnpacpi_parse_mem32_option(struct pnp_dev *dev,
|
|
unsigned int option_flags,
|
|
struct acpi_resource_memory32 *p)
|
|
{
|
|
unsigned char flags = 0;
|
|
|
|
if (p->address_length == 0)
|
|
return;
|
|
|
|
if (p->write_protect == ACPI_READ_WRITE_MEMORY)
|
|
flags = IORESOURCE_MEM_WRITEABLE;
|
|
pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum,
|
|
p->alignment, p->address_length, flags);
|
|
}
|
|
|
|
static __init void pnpacpi_parse_fixed_mem32_option(struct pnp_dev *dev,
|
|
unsigned int option_flags,
|
|
struct acpi_resource_fixed_memory32 *p)
|
|
{
|
|
unsigned char flags = 0;
|
|
|
|
if (p->address_length == 0)
|
|
return;
|
|
|
|
if (p->write_protect == ACPI_READ_WRITE_MEMORY)
|
|
flags = IORESOURCE_MEM_WRITEABLE;
|
|
pnp_register_mem_resource(dev, option_flags, p->address, p->address,
|
|
0, p->address_length, flags);
|
|
}
|
|
|
|
static __init void pnpacpi_parse_address_option(struct pnp_dev *dev,
|
|
unsigned int option_flags,
|
|
struct acpi_resource *r)
|
|
{
|
|
struct acpi_resource_address64 addr, *p = &addr;
|
|
acpi_status status;
|
|
unsigned char flags = 0;
|
|
|
|
status = acpi_resource_to_address64(r, p);
|
|
if (ACPI_FAILURE(status)) {
|
|
dev_warn(&dev->dev, "can't convert resource type %d\n",
|
|
r->type);
|
|
return;
|
|
}
|
|
|
|
if (p->address_length == 0)
|
|
return;
|
|
|
|
if (p->resource_type == ACPI_MEMORY_RANGE) {
|
|
if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY)
|
|
flags = IORESOURCE_MEM_WRITEABLE;
|
|
pnp_register_mem_resource(dev, option_flags, p->minimum,
|
|
p->minimum, 0, p->address_length,
|
|
flags);
|
|
} else if (p->resource_type == ACPI_IO_RANGE)
|
|
pnp_register_port_resource(dev, option_flags, p->minimum,
|
|
p->minimum, 0, p->address_length,
|
|
IORESOURCE_IO_FIXED);
|
|
}
|
|
|
|
struct acpipnp_parse_option_s {
|
|
struct pnp_dev *dev;
|
|
unsigned int option_flags;
|
|
};
|
|
|
|
static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
|
|
void *data)
|
|
{
|
|
int priority;
|
|
struct acpipnp_parse_option_s *parse_data = data;
|
|
struct pnp_dev *dev = parse_data->dev;
|
|
unsigned int option_flags = parse_data->option_flags;
|
|
|
|
switch (res->type) {
|
|
case ACPI_RESOURCE_TYPE_IRQ:
|
|
pnpacpi_parse_irq_option(dev, option_flags, &res->data.irq);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_DMA:
|
|
pnpacpi_parse_dma_option(dev, option_flags, &res->data.dma);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_START_DEPENDENT:
|
|
switch (res->data.start_dpf.compatibility_priority) {
|
|
case ACPI_GOOD_CONFIGURATION:
|
|
priority = PNP_RES_PRIORITY_PREFERRED;
|
|
break;
|
|
|
|
case ACPI_ACCEPTABLE_CONFIGURATION:
|
|
priority = PNP_RES_PRIORITY_ACCEPTABLE;
|
|
break;
|
|
|
|
case ACPI_SUB_OPTIMAL_CONFIGURATION:
|
|
priority = PNP_RES_PRIORITY_FUNCTIONAL;
|
|
break;
|
|
default:
|
|
priority = PNP_RES_PRIORITY_INVALID;
|
|
break;
|
|
}
|
|
parse_data->option_flags = pnp_new_dependent_set(dev, priority);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_END_DEPENDENT:
|
|
parse_data->option_flags = 0;
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_IO:
|
|
pnpacpi_parse_port_option(dev, option_flags, &res->data.io);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_FIXED_IO:
|
|
pnpacpi_parse_fixed_port_option(dev, option_flags,
|
|
&res->data.fixed_io);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_VENDOR:
|
|
case ACPI_RESOURCE_TYPE_END_TAG:
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_MEMORY24:
|
|
pnpacpi_parse_mem24_option(dev, option_flags,
|
|
&res->data.memory24);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_MEMORY32:
|
|
pnpacpi_parse_mem32_option(dev, option_flags,
|
|
&res->data.memory32);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
|
|
pnpacpi_parse_fixed_mem32_option(dev, option_flags,
|
|
&res->data.fixed_memory32);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_ADDRESS16:
|
|
case ACPI_RESOURCE_TYPE_ADDRESS32:
|
|
case ACPI_RESOURCE_TYPE_ADDRESS64:
|
|
pnpacpi_parse_address_option(dev, option_flags, res);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
|
|
pnpacpi_parse_ext_irq_option(dev, option_flags,
|
|
&res->data.extended_irq);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
|
|
break;
|
|
|
|
default:
|
|
dev_warn(&dev->dev, "unknown resource type %d in _PRS\n",
|
|
res->type);
|
|
return AE_ERROR;
|
|
}
|
|
|
|
return AE_OK;
|
|
}
|
|
|
|
int __init pnpacpi_parse_resource_option_data(struct pnp_dev *dev)
|
|
{
|
|
acpi_handle handle = dev->data;
|
|
acpi_status status;
|
|
struct acpipnp_parse_option_s parse_data;
|
|
|
|
pnp_dbg(&dev->dev, "parse resource options\n");
|
|
|
|
parse_data.dev = dev;
|
|
parse_data.option_flags = 0;
|
|
|
|
status = acpi_walk_resources(handle, METHOD_NAME__PRS,
|
|
pnpacpi_option_resource, &parse_data);
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
if (status != AE_NOT_FOUND)
|
|
dev_err(&dev->dev, "can't evaluate _PRS: %d", status);
|
|
return -EPERM;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int pnpacpi_supported_resource(struct acpi_resource *res)
|
|
{
|
|
switch (res->type) {
|
|
case ACPI_RESOURCE_TYPE_IRQ:
|
|
case ACPI_RESOURCE_TYPE_DMA:
|
|
case ACPI_RESOURCE_TYPE_IO:
|
|
case ACPI_RESOURCE_TYPE_FIXED_IO:
|
|
case ACPI_RESOURCE_TYPE_MEMORY24:
|
|
case ACPI_RESOURCE_TYPE_MEMORY32:
|
|
case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
|
|
case ACPI_RESOURCE_TYPE_ADDRESS16:
|
|
case ACPI_RESOURCE_TYPE_ADDRESS32:
|
|
case ACPI_RESOURCE_TYPE_ADDRESS64:
|
|
case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Set resource
|
|
*/
|
|
static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
|
|
void *data)
|
|
{
|
|
int *res_cnt = data;
|
|
|
|
if (pnpacpi_supported_resource(res))
|
|
(*res_cnt)++;
|
|
return AE_OK;
|
|
}
|
|
|
|
static acpi_status pnpacpi_type_resources(struct acpi_resource *res, void *data)
|
|
{
|
|
struct acpi_resource **resource = data;
|
|
|
|
if (pnpacpi_supported_resource(res)) {
|
|
(*resource)->type = res->type;
|
|
(*resource)->length = sizeof(struct acpi_resource);
|
|
if (res->type == ACPI_RESOURCE_TYPE_IRQ)
|
|
(*resource)->data.irq.descriptor_length =
|
|
res->data.irq.descriptor_length;
|
|
(*resource)++;
|
|
}
|
|
|
|
return AE_OK;
|
|
}
|
|
|
|
int pnpacpi_build_resource_template(struct pnp_dev *dev,
|
|
struct acpi_buffer *buffer)
|
|
{
|
|
acpi_handle handle = dev->data;
|
|
struct acpi_resource *resource;
|
|
int res_cnt = 0;
|
|
acpi_status status;
|
|
|
|
status = acpi_walk_resources(handle, METHOD_NAME__CRS,
|
|
pnpacpi_count_resources, &res_cnt);
|
|
if (ACPI_FAILURE(status)) {
|
|
dev_err(&dev->dev, "can't evaluate _CRS: %d\n", status);
|
|
return -EINVAL;
|
|
}
|
|
if (!res_cnt)
|
|
return -EINVAL;
|
|
buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1;
|
|
buffer->pointer = kzalloc(buffer->length - 1, GFP_KERNEL);
|
|
if (!buffer->pointer)
|
|
return -ENOMEM;
|
|
|
|
resource = (struct acpi_resource *)buffer->pointer;
|
|
status = acpi_walk_resources(handle, METHOD_NAME__CRS,
|
|
pnpacpi_type_resources, &resource);
|
|
if (ACPI_FAILURE(status)) {
|
|
kfree(buffer->pointer);
|
|
dev_err(&dev->dev, "can't evaluate _CRS: %d\n", status);
|
|
return -EINVAL;
|
|
}
|
|
/* resource will pointer the end resource now */
|
|
resource->type = ACPI_RESOURCE_TYPE_END_TAG;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void pnpacpi_encode_irq(struct pnp_dev *dev,
|
|
struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
struct acpi_resource_irq *irq = &resource->data.irq;
|
|
int triggering, polarity, shareable;
|
|
|
|
if (!pnp_resource_enabled(p)) {
|
|
irq->interrupt_count = 0;
|
|
pnp_dbg(&dev->dev, " encode irq (%s)\n",
|
|
p ? "disabled" : "missing");
|
|
return;
|
|
}
|
|
|
|
decode_irq_flags(dev, p->flags, &triggering, &polarity, &shareable);
|
|
irq->triggering = triggering;
|
|
irq->polarity = polarity;
|
|
irq->sharable = shareable;
|
|
irq->interrupt_count = 1;
|
|
irq->interrupts[0] = p->start;
|
|
|
|
pnp_dbg(&dev->dev, " encode irq %d %s %s %s (%d-byte descriptor)\n",
|
|
(int) p->start,
|
|
triggering == ACPI_LEVEL_SENSITIVE ? "level" : "edge",
|
|
polarity == ACPI_ACTIVE_LOW ? "low" : "high",
|
|
irq->sharable == ACPI_SHARED ? "shared" : "exclusive",
|
|
irq->descriptor_length);
|
|
}
|
|
|
|
static void pnpacpi_encode_ext_irq(struct pnp_dev *dev,
|
|
struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
struct acpi_resource_extended_irq *extended_irq = &resource->data.extended_irq;
|
|
int triggering, polarity, shareable;
|
|
|
|
if (!pnp_resource_enabled(p)) {
|
|
extended_irq->interrupt_count = 0;
|
|
pnp_dbg(&dev->dev, " encode extended irq (%s)\n",
|
|
p ? "disabled" : "missing");
|
|
return;
|
|
}
|
|
|
|
decode_irq_flags(dev, p->flags, &triggering, &polarity, &shareable);
|
|
extended_irq->producer_consumer = ACPI_CONSUMER;
|
|
extended_irq->triggering = triggering;
|
|
extended_irq->polarity = polarity;
|
|
extended_irq->sharable = shareable;
|
|
extended_irq->interrupt_count = 1;
|
|
extended_irq->interrupts[0] = p->start;
|
|
|
|
pnp_dbg(&dev->dev, " encode irq %d %s %s %s\n", (int) p->start,
|
|
triggering == ACPI_LEVEL_SENSITIVE ? "level" : "edge",
|
|
polarity == ACPI_ACTIVE_LOW ? "low" : "high",
|
|
extended_irq->sharable == ACPI_SHARED ? "shared" : "exclusive");
|
|
}
|
|
|
|
static void pnpacpi_encode_dma(struct pnp_dev *dev,
|
|
struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
struct acpi_resource_dma *dma = &resource->data.dma;
|
|
|
|
if (!pnp_resource_enabled(p)) {
|
|
dma->channel_count = 0;
|
|
pnp_dbg(&dev->dev, " encode dma (%s)\n",
|
|
p ? "disabled" : "missing");
|
|
return;
|
|
}
|
|
|
|
/* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
|
|
switch (p->flags & IORESOURCE_DMA_SPEED_MASK) {
|
|
case IORESOURCE_DMA_TYPEA:
|
|
dma->type = ACPI_TYPE_A;
|
|
break;
|
|
case IORESOURCE_DMA_TYPEB:
|
|
dma->type = ACPI_TYPE_B;
|
|
break;
|
|
case IORESOURCE_DMA_TYPEF:
|
|
dma->type = ACPI_TYPE_F;
|
|
break;
|
|
default:
|
|
dma->type = ACPI_COMPATIBILITY;
|
|
}
|
|
|
|
switch (p->flags & IORESOURCE_DMA_TYPE_MASK) {
|
|
case IORESOURCE_DMA_8BIT:
|
|
dma->transfer = ACPI_TRANSFER_8;
|
|
break;
|
|
case IORESOURCE_DMA_8AND16BIT:
|
|
dma->transfer = ACPI_TRANSFER_8_16;
|
|
break;
|
|
default:
|
|
dma->transfer = ACPI_TRANSFER_16;
|
|
}
|
|
|
|
dma->bus_master = !!(p->flags & IORESOURCE_DMA_MASTER);
|
|
dma->channel_count = 1;
|
|
dma->channels[0] = p->start;
|
|
|
|
pnp_dbg(&dev->dev, " encode dma %d "
|
|
"type %#x transfer %#x master %d\n",
|
|
(int) p->start, dma->type, dma->transfer, dma->bus_master);
|
|
}
|
|
|
|
static void pnpacpi_encode_io(struct pnp_dev *dev,
|
|
struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
struct acpi_resource_io *io = &resource->data.io;
|
|
|
|
if (pnp_resource_enabled(p)) {
|
|
/* Note: pnp_assign_port copies pnp_port->flags into p->flags */
|
|
io->io_decode = (p->flags & IORESOURCE_IO_16BIT_ADDR) ?
|
|
ACPI_DECODE_16 : ACPI_DECODE_10;
|
|
io->minimum = p->start;
|
|
io->maximum = p->end;
|
|
io->alignment = 0; /* Correct? */
|
|
io->address_length = p->end - p->start + 1;
|
|
} else {
|
|
io->minimum = 0;
|
|
io->address_length = 0;
|
|
}
|
|
|
|
pnp_dbg(&dev->dev, " encode io %#x-%#x decode %#x\n", io->minimum,
|
|
io->minimum + io->address_length - 1, io->io_decode);
|
|
}
|
|
|
|
static void pnpacpi_encode_fixed_io(struct pnp_dev *dev,
|
|
struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
struct acpi_resource_fixed_io *fixed_io = &resource->data.fixed_io;
|
|
|
|
if (pnp_resource_enabled(p)) {
|
|
fixed_io->address = p->start;
|
|
fixed_io->address_length = p->end - p->start + 1;
|
|
} else {
|
|
fixed_io->address = 0;
|
|
fixed_io->address_length = 0;
|
|
}
|
|
|
|
pnp_dbg(&dev->dev, " encode fixed_io %#x-%#x\n", fixed_io->address,
|
|
fixed_io->address + fixed_io->address_length - 1);
|
|
}
|
|
|
|
static void pnpacpi_encode_mem24(struct pnp_dev *dev,
|
|
struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
struct acpi_resource_memory24 *memory24 = &resource->data.memory24;
|
|
|
|
if (pnp_resource_enabled(p)) {
|
|
/* Note: pnp_assign_mem copies pnp_mem->flags into p->flags */
|
|
memory24->write_protect = p->flags & IORESOURCE_MEM_WRITEABLE ?
|
|
ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
|
|
memory24->minimum = p->start;
|
|
memory24->maximum = p->end;
|
|
memory24->alignment = 0;
|
|
memory24->address_length = p->end - p->start + 1;
|
|
} else {
|
|
memory24->minimum = 0;
|
|
memory24->address_length = 0;
|
|
}
|
|
|
|
pnp_dbg(&dev->dev, " encode mem24 %#x-%#x write_protect %#x\n",
|
|
memory24->minimum,
|
|
memory24->minimum + memory24->address_length - 1,
|
|
memory24->write_protect);
|
|
}
|
|
|
|
static void pnpacpi_encode_mem32(struct pnp_dev *dev,
|
|
struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
struct acpi_resource_memory32 *memory32 = &resource->data.memory32;
|
|
|
|
if (pnp_resource_enabled(p)) {
|
|
memory32->write_protect = p->flags & IORESOURCE_MEM_WRITEABLE ?
|
|
ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
|
|
memory32->minimum = p->start;
|
|
memory32->maximum = p->end;
|
|
memory32->alignment = 0;
|
|
memory32->address_length = p->end - p->start + 1;
|
|
} else {
|
|
memory32->minimum = 0;
|
|
memory32->alignment = 0;
|
|
}
|
|
|
|
pnp_dbg(&dev->dev, " encode mem32 %#x-%#x write_protect %#x\n",
|
|
memory32->minimum,
|
|
memory32->minimum + memory32->address_length - 1,
|
|
memory32->write_protect);
|
|
}
|
|
|
|
static void pnpacpi_encode_fixed_mem32(struct pnp_dev *dev,
|
|
struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
struct acpi_resource_fixed_memory32 *fixed_memory32 = &resource->data.fixed_memory32;
|
|
|
|
if (pnp_resource_enabled(p)) {
|
|
fixed_memory32->write_protect =
|
|
p->flags & IORESOURCE_MEM_WRITEABLE ?
|
|
ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
|
|
fixed_memory32->address = p->start;
|
|
fixed_memory32->address_length = p->end - p->start + 1;
|
|
} else {
|
|
fixed_memory32->address = 0;
|
|
fixed_memory32->address_length = 0;
|
|
}
|
|
|
|
pnp_dbg(&dev->dev, " encode fixed_mem32 %#x-%#x write_protect %#x\n",
|
|
fixed_memory32->address,
|
|
fixed_memory32->address + fixed_memory32->address_length - 1,
|
|
fixed_memory32->write_protect);
|
|
}
|
|
|
|
int pnpacpi_encode_resources(struct pnp_dev *dev, struct acpi_buffer *buffer)
|
|
{
|
|
int i = 0;
|
|
/* pnpacpi_build_resource_template allocates extra mem */
|
|
int res_cnt = (buffer->length - 1) / sizeof(struct acpi_resource) - 1;
|
|
struct acpi_resource *resource = buffer->pointer;
|
|
int port = 0, irq = 0, dma = 0, mem = 0;
|
|
|
|
pnp_dbg(&dev->dev, "encode %d resources\n", res_cnt);
|
|
while (i < res_cnt) {
|
|
switch (resource->type) {
|
|
case ACPI_RESOURCE_TYPE_IRQ:
|
|
pnpacpi_encode_irq(dev, resource,
|
|
pnp_get_resource(dev, IORESOURCE_IRQ, irq));
|
|
irq++;
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_DMA:
|
|
pnpacpi_encode_dma(dev, resource,
|
|
pnp_get_resource(dev, IORESOURCE_DMA, dma));
|
|
dma++;
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_IO:
|
|
pnpacpi_encode_io(dev, resource,
|
|
pnp_get_resource(dev, IORESOURCE_IO, port));
|
|
port++;
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_FIXED_IO:
|
|
pnpacpi_encode_fixed_io(dev, resource,
|
|
pnp_get_resource(dev, IORESOURCE_IO, port));
|
|
port++;
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_MEMORY24:
|
|
pnpacpi_encode_mem24(dev, resource,
|
|
pnp_get_resource(dev, IORESOURCE_MEM, mem));
|
|
mem++;
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_MEMORY32:
|
|
pnpacpi_encode_mem32(dev, resource,
|
|
pnp_get_resource(dev, IORESOURCE_MEM, mem));
|
|
mem++;
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
|
|
pnpacpi_encode_fixed_mem32(dev, resource,
|
|
pnp_get_resource(dev, IORESOURCE_MEM, mem));
|
|
mem++;
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
|
|
pnpacpi_encode_ext_irq(dev, resource,
|
|
pnp_get_resource(dev, IORESOURCE_IRQ, irq));
|
|
irq++;
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_START_DEPENDENT:
|
|
case ACPI_RESOURCE_TYPE_END_DEPENDENT:
|
|
case ACPI_RESOURCE_TYPE_VENDOR:
|
|
case ACPI_RESOURCE_TYPE_END_TAG:
|
|
case ACPI_RESOURCE_TYPE_ADDRESS16:
|
|
case ACPI_RESOURCE_TYPE_ADDRESS32:
|
|
case ACPI_RESOURCE_TYPE_ADDRESS64:
|
|
case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
|
|
case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
|
|
default: /* other type */
|
|
dev_warn(&dev->dev, "can't encode unknown resource "
|
|
"type %d\n", resource->type);
|
|
return -EINVAL;
|
|
}
|
|
resource++;
|
|
i++;
|
|
}
|
|
return 0;
|
|
}
|