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947 lines
26 KiB
947 lines
26 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
|
/* |
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* pnpacpi -- PnP ACPI driver |
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* |
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* Copyright (c) 2004 Matthieu Castet <[email protected]> |
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* Copyright (c) 2004 Li Shaohua <[email protected]> |
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* Copyright (C) 2008 Hewlett-Packard Development Company, L.P. |
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* Bjorn Helgaas <[email protected]> |
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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 <linux/slab.h> |
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#include "../base.h" |
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#include "pnpacpi.h" |
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|
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static void decode_irq_flags(struct pnp_dev *dev, int flags, u8 *triggering, |
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u8 *polarity, u8 *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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|
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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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|
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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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|
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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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|
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return flags; |
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} |
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|
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/* |
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* Allocated Resources |
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*/ |
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|
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static void pnpacpi_add_irqresource(struct pnp_dev *dev, struct resource *r) |
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{ |
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if (!(r->flags & IORESOURCE_DISABLED)) |
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pcibios_penalize_isa_irq(r->start, 1); |
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|
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pnp_add_resource(dev, r); |
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} |
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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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|
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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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|
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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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|
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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, |
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"wrong vendor descriptor size; 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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|
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return 1; |
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} |
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|
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return 0; |
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} |
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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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|
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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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|
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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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|
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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_dma *dma; |
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struct acpi_resource_vendor_typed *vendor_typed; |
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struct acpi_resource_gpio *gpio; |
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struct resource_win win = {{0}, 0}; |
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struct resource *r = &win.res; |
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int i, flags; |
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|
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if (acpi_dev_resource_address_space(res, &win) |
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|| acpi_dev_resource_ext_address_space(res, &win)) { |
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pnp_add_resource(dev, &win.res); |
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return AE_OK; |
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} |
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|
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r->flags = 0; |
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if (acpi_dev_resource_interrupt(res, 0, r)) { |
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pnpacpi_add_irqresource(dev, r); |
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for (i = 1; acpi_dev_resource_interrupt(res, i, r); i++) |
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pnpacpi_add_irqresource(dev, r); |
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|
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if (i > 1) { |
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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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dev_warn(&dev->dev, |
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"multiple interrupts in _CRS descriptor; configuration can't be changed\n"); |
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dev->capabilities &= ~PNP_WRITE; |
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} |
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} |
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return AE_OK; |
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} else if (acpi_gpio_get_irq_resource(res, &gpio)) { |
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/* |
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* If the resource is GpioInt() type then extract the IRQ |
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* from GPIO resource and fill it into IRQ resource type. |
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*/ |
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i = acpi_dev_gpio_irq_get(dev->data, 0); |
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if (i >= 0) { |
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flags = acpi_dev_irq_flags(gpio->triggering, |
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gpio->polarity, |
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gpio->shareable); |
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} else { |
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flags = IORESOURCE_DISABLED; |
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} |
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pnp_add_irq_resource(dev, i, flags); |
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return AE_OK; |
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} else if (r->flags & IORESOURCE_DISABLED) { |
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pnp_add_irq_resource(dev, 0, IORESOURCE_DISABLED); |
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return AE_OK; |
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} |
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|
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switch (res->type) { |
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case ACPI_RESOURCE_TYPE_MEMORY24: |
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case ACPI_RESOURCE_TYPE_MEMORY32: |
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case ACPI_RESOURCE_TYPE_FIXED_MEMORY32: |
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if (acpi_dev_resource_memory(res, r)) |
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pnp_add_resource(dev, r); |
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break; |
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case ACPI_RESOURCE_TYPE_IO: |
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case ACPI_RESOURCE_TYPE_FIXED_IO: |
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if (acpi_dev_resource_io(res, r)) |
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pnp_add_resource(dev, r); |
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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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|
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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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|
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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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|
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case ACPI_RESOURCE_TYPE_END_TAG: |
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break; |
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|
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case ACPI_RESOURCE_TYPE_GENERIC_REGISTER: |
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break; |
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|
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case ACPI_RESOURCE_TYPE_SERIAL_BUS: |
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/* serial bus connections (I2C/SPI/UART) are not pnp */ |
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break; |
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|
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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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|
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return AE_OK; |
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} |
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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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struct acpi_device *acpi_dev = dev->data; |
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acpi_handle handle = acpi_dev->handle; |
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acpi_status status; |
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|
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pnp_dbg(&dev->dev, "parse allocated resources\n"); |
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|
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pnp_init_resources(dev); |
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|
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status = acpi_walk_resources(handle, METHOD_NAME__CRS, |
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pnpacpi_allocated_resource, dev); |
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|
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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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|
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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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|
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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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|
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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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|
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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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|
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bitmap_zero(map.bits, PNP_IRQ_NR); |
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for (i = 0; i < p->interrupt_count; i++) |
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if (p->interrupts[i]) |
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__set_bit(p->interrupts[i], map.bits); |
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|
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flags = acpi_dev_irq_flags(p->triggering, p->polarity, p->shareable); |
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pnp_register_irq_resource(dev, option_flags, &map, flags); |
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} |
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|
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static __init void pnpacpi_parse_ext_irq_option(struct pnp_dev *dev, |
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unsigned int option_flags, |
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struct acpi_resource_extended_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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|
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bitmap_zero(map.bits, PNP_IRQ_NR); |
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for (i = 0; i < p->interrupt_count; i++) { |
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if (p->interrupts[i]) { |
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if (p->interrupts[i] < PNP_IRQ_NR) |
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__set_bit(p->interrupts[i], map.bits); |
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else |
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dev_err(&dev->dev, |
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"ignoring IRQ %d option (too large for %d entry bitmap)\n", |
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p->interrupts[i], PNP_IRQ_NR); |
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} |
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} |
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|
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flags = acpi_dev_irq_flags(p->triggering, p->polarity, p->shareable); |
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pnp_register_irq_resource(dev, option_flags, &map, flags); |
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} |
|
|
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static __init void pnpacpi_parse_port_option(struct pnp_dev *dev, |
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unsigned int option_flags, |
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struct acpi_resource_io *io) |
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{ |
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unsigned char flags = 0; |
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|
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if (io->io_decode == ACPI_DECODE_16) |
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flags = IORESOURCE_IO_16BIT_ADDR; |
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pnp_register_port_resource(dev, option_flags, io->minimum, io->maximum, |
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io->alignment, io->address_length, flags); |
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} |
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|
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static __init void pnpacpi_parse_fixed_port_option(struct pnp_dev *dev, |
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unsigned int option_flags, |
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struct acpi_resource_fixed_io *io) |
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{ |
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pnp_register_port_resource(dev, option_flags, io->address, io->address, |
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0, io->address_length, IORESOURCE_IO_FIXED); |
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} |
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|
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static __init void pnpacpi_parse_mem24_option(struct pnp_dev *dev, |
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unsigned int option_flags, |
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struct acpi_resource_memory24 *p) |
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{ |
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unsigned char flags = 0; |
|
|
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if (p->write_protect == ACPI_READ_WRITE_MEMORY) |
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flags = IORESOURCE_MEM_WRITEABLE; |
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pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum, |
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p->alignment, p->address_length, flags); |
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} |
|
|
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static __init void pnpacpi_parse_mem32_option(struct pnp_dev *dev, |
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unsigned int option_flags, |
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struct acpi_resource_memory32 *p) |
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{ |
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unsigned char flags = 0; |
|
|
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if (p->write_protect == ACPI_READ_WRITE_MEMORY) |
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flags = IORESOURCE_MEM_WRITEABLE; |
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pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum, |
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p->alignment, p->address_length, flags); |
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} |
|
|
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static __init void pnpacpi_parse_fixed_mem32_option(struct pnp_dev *dev, |
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unsigned int option_flags, |
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struct acpi_resource_fixed_memory32 *p) |
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{ |
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unsigned char flags = 0; |
|
|
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if (p->write_protect == ACPI_READ_WRITE_MEMORY) |
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flags = IORESOURCE_MEM_WRITEABLE; |
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pnp_register_mem_resource(dev, option_flags, p->address, p->address, |
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0, p->address_length, flags); |
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} |
|
|
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static __init void pnpacpi_parse_address_option(struct pnp_dev *dev, |
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unsigned int option_flags, |
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struct acpi_resource *r) |
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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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unsigned char flags = 0; |
|
|
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status = acpi_resource_to_address64(r, p); |
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if (ACPI_FAILURE(status)) { |
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dev_warn(&dev->dev, "can't convert resource type %d\n", |
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r->type); |
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return; |
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} |
|
|
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if (p->resource_type == ACPI_MEMORY_RANGE) { |
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if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY) |
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flags = IORESOURCE_MEM_WRITEABLE; |
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pnp_register_mem_resource(dev, option_flags, p->address.minimum, |
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p->address.minimum, 0, p->address.address_length, |
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flags); |
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} else if (p->resource_type == ACPI_IO_RANGE) |
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pnp_register_port_resource(dev, option_flags, p->address.minimum, |
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p->address.minimum, 0, p->address.address_length, |
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IORESOURCE_IO_FIXED); |
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} |
|
|
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static __init void pnpacpi_parse_ext_address_option(struct pnp_dev *dev, |
|
unsigned int option_flags, |
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struct acpi_resource *r) |
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{ |
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struct acpi_resource_extended_address64 *p = &r->data.ext_address64; |
|
unsigned char flags = 0; |
|
|
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if (p->resource_type == ACPI_MEMORY_RANGE) { |
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if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY) |
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flags = IORESOURCE_MEM_WRITEABLE; |
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pnp_register_mem_resource(dev, option_flags, p->address.minimum, |
|
p->address.minimum, 0, p->address.address_length, |
|
flags); |
|
} else if (p->resource_type == ACPI_IO_RANGE) |
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pnp_register_port_resource(dev, option_flags, p->address.minimum, |
|
p->address.minimum, 0, p->address.address_length, |
|
IORESOURCE_IO_FIXED); |
|
} |
|
|
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struct acpipnp_parse_option_s { |
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struct pnp_dev *dev; |
|
unsigned int option_flags; |
|
}; |
|
|
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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; |
|
|
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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: |
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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: |
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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: |
|
pnpacpi_parse_ext_address_option(dev, option_flags, res); |
|
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) |
|
{ |
|
struct acpi_device *acpi_dev = dev->data; |
|
acpi_handle handle = acpi_dev->handle; |
|
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_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) |
|
{ |
|
struct acpi_device *acpi_dev = dev->data; |
|
acpi_handle handle = acpi_dev->handle; |
|
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; |
|
resource->length = sizeof(struct acpi_resource); |
|
|
|
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; |
|
u8 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->shareable = 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->shareable == 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; |
|
u8 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->shareable = 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->shareable == 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 = resource_size(p); |
|
} 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 = resource_size(p); |
|
} 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 = resource_size(p); |
|
} 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 = resource_size(p); |
|
} 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 = resource_size(p); |
|
} 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; |
|
unsigned 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; |
|
}
|
|
|