997 lines
26 KiB
C
997 lines
26 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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*
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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 "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)
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{
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if (triggering == ACPI_LEVEL_SENSITIVE) {
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if (polarity == ACPI_ACTIVE_LOW)
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return IORESOURCE_IRQ_LOWLEVEL;
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else
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return IORESOURCE_IRQ_HIGHLEVEL;
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} else {
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if (polarity == ACPI_ACTIVE_LOW)
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return IORESOURCE_IRQ_LOWEDGE;
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else
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return IORESOURCE_IRQ_HIGHEDGE;
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}
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}
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static void decode_irq_flags(int flag, int *triggering, int *polarity)
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{
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switch (flag) {
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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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}
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}
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static void pnpacpi_parse_allocated_irqresource(struct pnp_resource_table *res,
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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 i = 0;
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int irq;
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int p, t;
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static unsigned char warned;
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if (!valid_IRQ(gsi))
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return;
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while (!(res->irq_resource[i].flags & IORESOURCE_UNSET) &&
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i < PNP_MAX_IRQ)
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i++;
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if (i >= PNP_MAX_IRQ && !warned) {
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printk(KERN_ERR "pnpacpi: exceeded the max number of IRQ "
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"resources: %d \n", PNP_MAX_IRQ);
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warned = 1;
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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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pnp_warn("IRQ %d override to %s, %s",
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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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res->irq_resource[i].flags = IORESOURCE_IRQ; // Also clears _UNSET flag
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res->irq_resource[i].flags |= irq_flags(triggering, polarity);
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irq = acpi_register_gsi(gsi, triggering, polarity);
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if (irq < 0) {
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res->irq_resource[i].flags |= IORESOURCE_DISABLED;
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return;
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}
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if (shareable)
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res->irq_resource[i].flags |= IORESOURCE_IRQ_SHAREABLE;
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res->irq_resource[i].start = irq;
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res->irq_resource[i].end = irq;
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pcibios_penalize_isa_irq(irq, 1);
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}
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static int dma_flags(int type, int bus_master, 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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pnp_err("Invalid DMA 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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pnp_err("Invalid DMA transfer type");
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}
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return flags;
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}
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static void pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table *res,
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u32 dma, int type,
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int bus_master, int transfer)
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{
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int i = 0;
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static unsigned char warned;
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while (i < PNP_MAX_DMA &&
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!(res->dma_resource[i].flags & IORESOURCE_UNSET))
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i++;
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if (i < PNP_MAX_DMA) {
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res->dma_resource[i].flags = IORESOURCE_DMA; // Also clears _UNSET flag
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res->dma_resource[i].flags |=
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dma_flags(type, bus_master, transfer);
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if (dma == -1) {
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res->dma_resource[i].flags |= IORESOURCE_DISABLED;
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return;
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}
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res->dma_resource[i].start = dma;
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res->dma_resource[i].end = dma;
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} else if (!warned) {
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printk(KERN_ERR "pnpacpi: exceeded the max number of DMA "
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"resources: %d \n", PNP_MAX_DMA);
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warned = 1;
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}
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}
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static void pnpacpi_parse_allocated_ioresource(struct pnp_resource_table *res,
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u64 io, u64 len, int io_decode)
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{
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int i = 0;
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static unsigned char warned;
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while (!(res->port_resource[i].flags & IORESOURCE_UNSET) &&
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i < PNP_MAX_PORT)
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i++;
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if (i < PNP_MAX_PORT) {
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res->port_resource[i].flags = IORESOURCE_IO; // Also clears _UNSET flag
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if (io_decode == ACPI_DECODE_16)
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res->port_resource[i].flags |= PNP_PORT_FLAG_16BITADDR;
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if (len <= 0 || (io + len - 1) >= 0x10003) {
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res->port_resource[i].flags |= IORESOURCE_DISABLED;
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return;
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}
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res->port_resource[i].start = io;
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res->port_resource[i].end = io + len - 1;
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} else if (!warned) {
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printk(KERN_ERR "pnpacpi: exceeded the max number of IO "
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"resources: %d \n", PNP_MAX_PORT);
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warned = 1;
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}
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}
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static void pnpacpi_parse_allocated_memresource(struct pnp_resource_table *res,
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u64 mem, u64 len,
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int write_protect)
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{
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int i = 0;
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static unsigned char warned;
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while (!(res->mem_resource[i].flags & IORESOURCE_UNSET) &&
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(i < PNP_MAX_MEM))
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i++;
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if (i < PNP_MAX_MEM) {
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res->mem_resource[i].flags = IORESOURCE_MEM; // Also clears _UNSET flag
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if (len <= 0) {
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res->mem_resource[i].flags |= IORESOURCE_DISABLED;
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return;
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}
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if (write_protect == ACPI_READ_WRITE_MEMORY)
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res->mem_resource[i].flags |= IORESOURCE_MEM_WRITEABLE;
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res->mem_resource[i].start = mem;
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res->mem_resource[i].end = mem + len - 1;
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} else if (!warned) {
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printk(KERN_ERR "pnpacpi: exceeded the max number of mem "
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"resources: %d\n", PNP_MAX_MEM);
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warned = 1;
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}
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}
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static void pnpacpi_parse_allocated_address_space(struct pnp_resource_table *res_table,
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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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pnp_warn("PnPACPI: failed to convert resource type %d",
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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(res_table,
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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(res_table,
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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_resource_table *res_table = data;
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int i;
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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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for (i = 0; i < res->data.irq.interrupt_count; i++) {
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pnpacpi_parse_allocated_irqresource(res_table,
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res->data.irq.interrupts[i],
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res->data.irq.triggering,
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res->data.irq.polarity,
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res->data.irq.sharable);
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}
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break;
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case ACPI_RESOURCE_TYPE_DMA:
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if (res->data.dma.channel_count > 0)
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pnpacpi_parse_allocated_dmaresource(res_table,
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res->data.dma.channels[0],
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res->data.dma.type,
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res->data.dma.bus_master,
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res->data.dma.transfer);
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break;
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case ACPI_RESOURCE_TYPE_IO:
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pnpacpi_parse_allocated_ioresource(res_table,
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res->data.io.minimum,
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res->data.io.address_length,
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res->data.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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pnpacpi_parse_allocated_ioresource(res_table,
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res->data.fixed_io.address,
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res->data.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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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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pnpacpi_parse_allocated_memresource(res_table,
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res->data.memory24.minimum,
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res->data.memory24.address_length,
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res->data.memory24.write_protect);
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break;
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case ACPI_RESOURCE_TYPE_MEMORY32:
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pnpacpi_parse_allocated_memresource(res_table,
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res->data.memory32.minimum,
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res->data.memory32.address_length,
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res->data.memory32.write_protect);
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break;
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case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
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pnpacpi_parse_allocated_memresource(res_table,
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res->data.fixed_memory32.address,
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res->data.fixed_memory32.address_length,
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res->data.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(res_table, 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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if (res->data.extended_irq.producer_consumer == ACPI_PRODUCER)
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return AE_OK;
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for (i = 0; i < res->data.extended_irq.interrupt_count; i++) {
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pnpacpi_parse_allocated_irqresource(res_table,
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res->data.extended_irq.interrupts[i],
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res->data.extended_irq.triggering,
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res->data.extended_irq.polarity,
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res->data.extended_irq.sharable);
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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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pnp_warn("PnPACPI: unknown resource type %d", 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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acpi_status pnpacpi_parse_allocated_resource(acpi_handle handle,
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struct pnp_resource_table * res)
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{
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/* Blank the resource table values */
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pnp_init_resource_table(res);
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return acpi_walk_resources(handle, METHOD_NAME__CRS,
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pnpacpi_allocated_resource, res);
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}
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static __init void pnpacpi_parse_dma_option(struct pnp_option *option,
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struct acpi_resource_dma *p)
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{
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int i;
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struct pnp_dma *dma;
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if (p->channel_count == 0)
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return;
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dma = kzalloc(sizeof(struct pnp_dma), GFP_KERNEL);
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if (!dma)
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return;
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for (i = 0; i < p->channel_count; i++)
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dma->map |= 1 << p->channels[i];
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dma->flags = dma_flags(p->type, p->bus_master, p->transfer);
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pnp_register_dma_resource(option, dma);
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}
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static __init void pnpacpi_parse_irq_option(struct pnp_option *option,
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struct acpi_resource_irq *p)
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{
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int i;
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struct pnp_irq *irq;
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if (p->interrupt_count == 0)
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return;
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irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
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if (!irq)
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return;
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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], irq->map);
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irq->flags = irq_flags(p->triggering, p->polarity);
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pnp_register_irq_resource(option, irq);
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}
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static __init void pnpacpi_parse_ext_irq_option(struct pnp_option *option,
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struct acpi_resource_extended_irq *p)
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{
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int i;
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struct pnp_irq *irq;
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if (p->interrupt_count == 0)
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return;
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irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
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if (!irq)
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return;
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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], irq->map);
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irq->flags = irq_flags(p->triggering, p->polarity);
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pnp_register_irq_resource(option, irq);
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}
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static __init void pnpacpi_parse_port_option(struct pnp_option *option,
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struct acpi_resource_io *io)
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{
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struct pnp_port *port;
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if (io->address_length == 0)
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return;
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port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
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if (!port)
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return;
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port->min = io->minimum;
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port->max = io->maximum;
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port->align = io->alignment;
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port->size = io->address_length;
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port->flags = ACPI_DECODE_16 == io->io_decode ?
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PNP_PORT_FLAG_16BITADDR : 0;
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pnp_register_port_resource(option, port);
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}
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static __init void pnpacpi_parse_fixed_port_option(struct pnp_option *option,
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struct acpi_resource_fixed_io *io)
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{
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struct pnp_port *port;
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if (io->address_length == 0)
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return;
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port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
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if (!port)
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return;
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port->min = port->max = io->address;
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port->size = io->address_length;
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port->align = 0;
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port->flags = PNP_PORT_FLAG_FIXED;
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pnp_register_port_resource(option, port);
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}
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static __init void pnpacpi_parse_mem24_option(struct pnp_option *option,
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struct acpi_resource_memory24 *p)
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{
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struct pnp_mem *mem;
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if (p->address_length == 0)
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return;
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mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
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if (!mem)
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return;
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mem->min = p->minimum;
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mem->max = p->maximum;
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mem->align = p->alignment;
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mem->size = p->address_length;
|
|
|
|
mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
|
|
IORESOURCE_MEM_WRITEABLE : 0;
|
|
|
|
pnp_register_mem_resource(option, mem);
|
|
}
|
|
|
|
static __init void pnpacpi_parse_mem32_option(struct pnp_option *option,
|
|
struct acpi_resource_memory32 *p)
|
|
{
|
|
struct pnp_mem *mem;
|
|
|
|
if (p->address_length == 0)
|
|
return;
|
|
mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
|
|
if (!mem)
|
|
return;
|
|
mem->min = p->minimum;
|
|
mem->max = p->maximum;
|
|
mem->align = p->alignment;
|
|
mem->size = p->address_length;
|
|
|
|
mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
|
|
IORESOURCE_MEM_WRITEABLE : 0;
|
|
|
|
pnp_register_mem_resource(option, mem);
|
|
}
|
|
|
|
static __init void pnpacpi_parse_fixed_mem32_option(struct pnp_option *option,
|
|
struct acpi_resource_fixed_memory32 *p)
|
|
{
|
|
struct pnp_mem *mem;
|
|
|
|
if (p->address_length == 0)
|
|
return;
|
|
mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
|
|
if (!mem)
|
|
return;
|
|
mem->min = mem->max = p->address;
|
|
mem->size = p->address_length;
|
|
mem->align = 0;
|
|
|
|
mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
|
|
IORESOURCE_MEM_WRITEABLE : 0;
|
|
|
|
pnp_register_mem_resource(option, mem);
|
|
}
|
|
|
|
static __init void pnpacpi_parse_address_option(struct pnp_option *option,
|
|
struct acpi_resource *r)
|
|
{
|
|
struct acpi_resource_address64 addr, *p = &addr;
|
|
acpi_status status;
|
|
struct pnp_mem *mem;
|
|
struct pnp_port *port;
|
|
|
|
status = acpi_resource_to_address64(r, p);
|
|
if (!ACPI_SUCCESS(status)) {
|
|
pnp_warn("PnPACPI: failed to convert resource type %d",
|
|
r->type);
|
|
return;
|
|
}
|
|
|
|
if (p->address_length == 0)
|
|
return;
|
|
|
|
if (p->resource_type == ACPI_MEMORY_RANGE) {
|
|
mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
|
|
if (!mem)
|
|
return;
|
|
mem->min = mem->max = p->minimum;
|
|
mem->size = p->address_length;
|
|
mem->align = 0;
|
|
mem->flags = (p->info.mem.write_protect ==
|
|
ACPI_READ_WRITE_MEMORY) ? IORESOURCE_MEM_WRITEABLE
|
|
: 0;
|
|
pnp_register_mem_resource(option, mem);
|
|
} else if (p->resource_type == ACPI_IO_RANGE) {
|
|
port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
|
|
if (!port)
|
|
return;
|
|
port->min = port->max = p->minimum;
|
|
port->size = p->address_length;
|
|
port->align = 0;
|
|
port->flags = PNP_PORT_FLAG_FIXED;
|
|
pnp_register_port_resource(option, port);
|
|
}
|
|
}
|
|
|
|
struct acpipnp_parse_option_s {
|
|
struct pnp_option *option;
|
|
struct pnp_option *option_independent;
|
|
struct pnp_dev *dev;
|
|
};
|
|
|
|
static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
|
|
void *data)
|
|
{
|
|
int priority = 0;
|
|
struct acpipnp_parse_option_s *parse_data = data;
|
|
struct pnp_dev *dev = parse_data->dev;
|
|
struct pnp_option *option = parse_data->option;
|
|
|
|
switch (res->type) {
|
|
case ACPI_RESOURCE_TYPE_IRQ:
|
|
pnpacpi_parse_irq_option(option, &res->data.irq);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_DMA:
|
|
pnpacpi_parse_dma_option(option, &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;
|
|
}
|
|
/* TBD: Consider performance/robustness bits */
|
|
option = pnp_register_dependent_option(dev, priority);
|
|
if (!option)
|
|
return AE_ERROR;
|
|
parse_data->option = option;
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_END_DEPENDENT:
|
|
/*only one EndDependentFn is allowed */
|
|
if (!parse_data->option_independent) {
|
|
pnp_warn("PnPACPI: more than one EndDependentFn");
|
|
return AE_ERROR;
|
|
}
|
|
parse_data->option = parse_data->option_independent;
|
|
parse_data->option_independent = NULL;
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_IO:
|
|
pnpacpi_parse_port_option(option, &res->data.io);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_FIXED_IO:
|
|
pnpacpi_parse_fixed_port_option(option, &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(option, &res->data.memory24);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_MEMORY32:
|
|
pnpacpi_parse_mem32_option(option, &res->data.memory32);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
|
|
pnpacpi_parse_fixed_mem32_option(option,
|
|
&res->data.fixed_memory32);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_ADDRESS16:
|
|
case ACPI_RESOURCE_TYPE_ADDRESS32:
|
|
case ACPI_RESOURCE_TYPE_ADDRESS64:
|
|
pnpacpi_parse_address_option(option, res);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
|
|
pnpacpi_parse_ext_irq_option(option, &res->data.extended_irq);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
|
|
break;
|
|
|
|
default:
|
|
pnp_warn("PnPACPI: unknown resource type %d", res->type);
|
|
return AE_ERROR;
|
|
}
|
|
|
|
return AE_OK;
|
|
}
|
|
|
|
acpi_status __init pnpacpi_parse_resource_option_data(acpi_handle handle,
|
|
struct pnp_dev *dev)
|
|
{
|
|
acpi_status status;
|
|
struct acpipnp_parse_option_s parse_data;
|
|
|
|
parse_data.option = pnp_register_independent_option(dev);
|
|
if (!parse_data.option)
|
|
return AE_ERROR;
|
|
parse_data.option_independent = parse_data.option;
|
|
parse_data.dev = dev;
|
|
status = acpi_walk_resources(handle, METHOD_NAME__PRS,
|
|
pnpacpi_option_resource, &parse_data);
|
|
|
|
return status;
|
|
}
|
|
|
|
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);
|
|
(*resource)++;
|
|
}
|
|
|
|
return AE_OK;
|
|
}
|
|
|
|
int pnpacpi_build_resource_template(acpi_handle handle,
|
|
struct acpi_buffer *buffer)
|
|
{
|
|
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)) {
|
|
pnp_err("Evaluate _CRS failed");
|
|
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;
|
|
pnp_dbg("Res cnt %d", res_cnt);
|
|
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);
|
|
pnp_err("Evaluate _CRS failed");
|
|
return -EINVAL;
|
|
}
|
|
/* resource will pointer the end resource now */
|
|
resource->type = ACPI_RESOURCE_TYPE_END_TAG;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void pnpacpi_encode_irq(struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
int triggering, polarity;
|
|
|
|
decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
|
|
resource->data.irq.triggering = triggering;
|
|
resource->data.irq.polarity = polarity;
|
|
if (triggering == ACPI_EDGE_SENSITIVE)
|
|
resource->data.irq.sharable = ACPI_EXCLUSIVE;
|
|
else
|
|
resource->data.irq.sharable = ACPI_SHARED;
|
|
resource->data.irq.interrupt_count = 1;
|
|
resource->data.irq.interrupts[0] = p->start;
|
|
}
|
|
|
|
static void pnpacpi_encode_ext_irq(struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
int triggering, polarity;
|
|
|
|
decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
|
|
resource->data.extended_irq.producer_consumer = ACPI_CONSUMER;
|
|
resource->data.extended_irq.triggering = triggering;
|
|
resource->data.extended_irq.polarity = polarity;
|
|
if (triggering == ACPI_EDGE_SENSITIVE)
|
|
resource->data.irq.sharable = ACPI_EXCLUSIVE;
|
|
else
|
|
resource->data.irq.sharable = ACPI_SHARED;
|
|
resource->data.extended_irq.interrupt_count = 1;
|
|
resource->data.extended_irq.interrupts[0] = p->start;
|
|
}
|
|
|
|
static void pnpacpi_encode_dma(struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
/* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
|
|
switch (p->flags & IORESOURCE_DMA_SPEED_MASK) {
|
|
case IORESOURCE_DMA_TYPEA:
|
|
resource->data.dma.type = ACPI_TYPE_A;
|
|
break;
|
|
case IORESOURCE_DMA_TYPEB:
|
|
resource->data.dma.type = ACPI_TYPE_B;
|
|
break;
|
|
case IORESOURCE_DMA_TYPEF:
|
|
resource->data.dma.type = ACPI_TYPE_F;
|
|
break;
|
|
default:
|
|
resource->data.dma.type = ACPI_COMPATIBILITY;
|
|
}
|
|
|
|
switch (p->flags & IORESOURCE_DMA_TYPE_MASK) {
|
|
case IORESOURCE_DMA_8BIT:
|
|
resource->data.dma.transfer = ACPI_TRANSFER_8;
|
|
break;
|
|
case IORESOURCE_DMA_8AND16BIT:
|
|
resource->data.dma.transfer = ACPI_TRANSFER_8_16;
|
|
break;
|
|
default:
|
|
resource->data.dma.transfer = ACPI_TRANSFER_16;
|
|
}
|
|
|
|
resource->data.dma.bus_master = !!(p->flags & IORESOURCE_DMA_MASTER);
|
|
resource->data.dma.channel_count = 1;
|
|
resource->data.dma.channels[0] = p->start;
|
|
}
|
|
|
|
static void pnpacpi_encode_io(struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
/* Note: pnp_assign_port will copy pnp_port->flags into p->flags */
|
|
resource->data.io.io_decode = (p->flags & PNP_PORT_FLAG_16BITADDR) ?
|
|
ACPI_DECODE_16 : ACPI_DECODE_10;
|
|
resource->data.io.minimum = p->start;
|
|
resource->data.io.maximum = p->end;
|
|
resource->data.io.alignment = 0; /* Correct? */
|
|
resource->data.io.address_length = p->end - p->start + 1;
|
|
}
|
|
|
|
static void pnpacpi_encode_fixed_io(struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
resource->data.fixed_io.address = p->start;
|
|
resource->data.fixed_io.address_length = p->end - p->start + 1;
|
|
}
|
|
|
|
static void pnpacpi_encode_mem24(struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
/* Note: pnp_assign_mem will copy pnp_mem->flags into p->flags */
|
|
resource->data.memory24.write_protect =
|
|
(p->flags & IORESOURCE_MEM_WRITEABLE) ?
|
|
ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
|
|
resource->data.memory24.minimum = p->start;
|
|
resource->data.memory24.maximum = p->end;
|
|
resource->data.memory24.alignment = 0;
|
|
resource->data.memory24.address_length = p->end - p->start + 1;
|
|
}
|
|
|
|
static void pnpacpi_encode_mem32(struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
resource->data.memory32.write_protect =
|
|
(p->flags & IORESOURCE_MEM_WRITEABLE) ?
|
|
ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
|
|
resource->data.memory32.minimum = p->start;
|
|
resource->data.memory32.maximum = p->end;
|
|
resource->data.memory32.alignment = 0;
|
|
resource->data.memory32.address_length = p->end - p->start + 1;
|
|
}
|
|
|
|
static void pnpacpi_encode_fixed_mem32(struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
resource->data.fixed_memory32.write_protect =
|
|
(p->flags & IORESOURCE_MEM_WRITEABLE) ?
|
|
ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
|
|
resource->data.fixed_memory32.address = p->start;
|
|
resource->data.fixed_memory32.address_length = p->end - p->start + 1;
|
|
}
|
|
|
|
int pnpacpi_encode_resources(struct pnp_resource_table *res_table,
|
|
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("res cnt %d", res_cnt);
|
|
while (i < res_cnt) {
|
|
switch (resource->type) {
|
|
case ACPI_RESOURCE_TYPE_IRQ:
|
|
pnp_dbg("Encode irq");
|
|
pnpacpi_encode_irq(resource,
|
|
&res_table->irq_resource[irq]);
|
|
irq++;
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_DMA:
|
|
pnp_dbg("Encode dma");
|
|
pnpacpi_encode_dma(resource,
|
|
&res_table->dma_resource[dma]);
|
|
dma++;
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_IO:
|
|
pnp_dbg("Encode io");
|
|
pnpacpi_encode_io(resource,
|
|
&res_table->port_resource[port]);
|
|
port++;
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_FIXED_IO:
|
|
pnp_dbg("Encode fixed io");
|
|
pnpacpi_encode_fixed_io(resource,
|
|
&res_table->
|
|
port_resource[port]);
|
|
port++;
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_MEMORY24:
|
|
pnp_dbg("Encode mem24");
|
|
pnpacpi_encode_mem24(resource,
|
|
&res_table->mem_resource[mem]);
|
|
mem++;
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_MEMORY32:
|
|
pnp_dbg("Encode mem32");
|
|
pnpacpi_encode_mem32(resource,
|
|
&res_table->mem_resource[mem]);
|
|
mem++;
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
|
|
pnp_dbg("Encode fixed mem32");
|
|
pnpacpi_encode_fixed_mem32(resource,
|
|
&res_table->
|
|
mem_resource[mem]);
|
|
mem++;
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
|
|
pnp_dbg("Encode ext irq");
|
|
pnpacpi_encode_ext_irq(resource,
|
|
&res_table->irq_resource[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 */
|
|
pnp_warn("unknown resource type %d", resource->type);
|
|
return -EINVAL;
|
|
}
|
|
resource++;
|
|
i++;
|
|
}
|
|
return 0;
|
|
}
|