X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fpnp%2Fquirks.c;h=e2b7de4cb05e46849f60ce4326b289bfe2092e62;hb=d2fc60d6925574eeeadd037aa0f1378e07189a1a;hp=e97ecefe85841c966be495f27588ea128684bc25;hpb=6ab3d5624e172c553004ecc862bfeac16d9d68b7;p=safe%2Fjmp%2Flinux-2.6

diff --git a/drivers/pnp/quirks.c b/drivers/pnp/quirks.c
index e97ecef..e2b7de4 100644
--- a/drivers/pnp/quirks.c
+++ b/drivers/pnp/quirks.c
@@ -16,9 +16,10 @@
 #include <linux/string.h>
 #include <linux/slab.h>
 #include <linux/pnp.h>
+#include <linux/io.h>
+#include <linux/kallsyms.h>
 #include "base.h"
 
-
 static void quirk_awe32_resources(struct pnp_dev *dev)
 {
 	struct pnp_port *port, *port2, *port3;
@@ -30,7 +31,7 @@ static void quirk_awe32_resources(struct pnp_dev *dev)
 	 * two extra ports (at offset 0x400 and 0x800 from the one given) by
 	 * hand.
 	 */
-	for ( ; res ; res = res->next ) {
+	for (; res; res = res->next) {
 		port2 = pnp_alloc(sizeof(struct pnp_port));
 		if (!port2)
 			return;
@@ -48,8 +49,11 @@ static void quirk_awe32_resources(struct pnp_dev *dev)
 		port2->max += 0x400;
 		port3->min += 0x800;
 		port3->max += 0x800;
+		dev_info(&dev->dev,
+			"AWE32 quirk - added ioports 0x%lx and 0x%lx\n",
+			(unsigned long)port2->min,
+			(unsigned long)port3->min);
 	}
-	printk(KERN_INFO "pnp: AWE32 quirk - adding two ports\n");
 }
 
 static void quirk_cmi8330_resources(struct pnp_dev *dev)
@@ -57,28 +61,30 @@ static void quirk_cmi8330_resources(struct pnp_dev *dev)
 	struct pnp_option *res = dev->dependent;
 	unsigned long tmp;
 
-	for ( ; res ; res = res->next ) {
+	for (; res; res = res->next) {
 
 		struct pnp_irq *irq;
 		struct pnp_dma *dma;
 
-		for( irq = res->irq; irq; irq = irq->next ) {	// Valid irqs are 5, 7, 10
+		for (irq = res->irq; irq; irq = irq->next) {	// Valid irqs are 5, 7, 10
 			tmp = 0x04A0;
 			bitmap_copy(irq->map, &tmp, 16);	// 0000 0100 1010 0000
 		}
 
-		for( dma = res->dma; dma; dma = dma->next ) // Valid 8bit dma channels are 1,3
-			if( ( dma->flags & IORESOURCE_DMA_TYPE_MASK ) == IORESOURCE_DMA_8BIT )
+		for (dma = res->dma; dma; dma = dma->next)	// Valid 8bit dma channels are 1,3
+			if ((dma->flags & IORESOURCE_DMA_TYPE_MASK) ==
+			    IORESOURCE_DMA_8BIT)
 				dma->map = 0x000A;
 	}
-	printk(KERN_INFO "pnp: CMI8330 quirk - fixing interrupts and dma\n");
+	dev_info(&dev->dev, "CMI8330 quirk - forced possible IRQs to 5, 7, 10 "
+		"and DMA channels to 1, 3\n");
 }
 
 static void quirk_sb16audio_resources(struct pnp_dev *dev)
 {
 	struct pnp_port *port;
 	struct pnp_option *res = dev->dependent;
-	int    changed = 0;
+	int changed = 0;
 
 	/*
 	 * The default range on the mpu port for these devices is 0x388-0x388.
@@ -86,24 +92,204 @@ static void quirk_sb16audio_resources(struct pnp_dev *dev)
 	 * auto-configured.
 	 */
 
-	for( ; res ; res = res->next ) {
+	for (; res; res = res->next) {
 		port = res->port;
-		if(!port)
+		if (!port)
 			continue;
 		port = port->next;
-		if(!port)
+		if (!port)
 			continue;
 		port = port->next;
-		if(!port)
+		if (!port)
 			continue;
-		if(port->min != port->max)
+		if (port->min != port->max)
 			continue;
 		port->max += 0x70;
 		changed = 1;
 	}
-	if(changed)
-		printk(KERN_INFO "pnp: SB audio device quirk - increasing port range\n");
-	return;
+	if (changed)
+		dev_info(&dev->dev, "SB audio device quirk - increased port range\n");
+}
+
+static struct pnp_option *quirk_isapnp_mpu_options(struct pnp_dev *dev)
+{
+	struct pnp_option *head = NULL;
+	struct pnp_option *prev = NULL;
+	struct pnp_option *res;
+
+	/*
+	 * Build a functional IRQ-less variant of each MPU option.
+	 */
+
+	for (res = dev->dependent; res; res = res->next) {
+		struct pnp_option *curr;
+		struct pnp_port *port;
+		struct pnp_port *copy;
+
+		port = res->port;
+		if (!port || !res->irq)
+			continue;
+
+		copy = pnp_alloc(sizeof *copy);
+		if (!copy)
+			break;
+
+		copy->min = port->min;
+		copy->max = port->max;
+		copy->align = port->align;
+		copy->size = port->size;
+		copy->flags = port->flags;
+
+		curr = pnp_build_option(PNP_RES_PRIORITY_FUNCTIONAL);
+		if (!curr) {
+			kfree(copy);
+			break;
+		}
+		curr->port = copy;
+
+		if (prev)
+			prev->next = curr;
+		else
+			head = curr;
+		prev = curr;
+	}
+	if (head)
+		dev_info(&dev->dev, "adding IRQ-less MPU options\n");
+
+	return head;
+}
+
+static void quirk_ad1815_mpu_resources(struct pnp_dev *dev)
+{
+	struct pnp_option *res;
+	struct pnp_irq *irq;
+
+	/*
+	 * Distribute the independent IRQ over the dependent options
+	 */
+
+	res = dev->independent;
+	if (!res)
+		return;
+
+	irq = res->irq;
+	if (!irq || irq->next)
+		return;
+
+	res = dev->dependent;
+	if (!res)
+		return;
+
+	while (1) {
+		struct pnp_irq *copy;
+
+		copy = pnp_alloc(sizeof *copy);
+		if (!copy)
+			break;
+
+		memcpy(copy->map, irq->map, sizeof copy->map);
+		copy->flags = irq->flags;
+
+		copy->next = res->irq; /* Yes, this is NULL */
+		res->irq = copy;
+
+		if (!res->next)
+			break;
+		res = res->next;
+	}
+	kfree(irq);
+
+	res->next = quirk_isapnp_mpu_options(dev);
+
+	res = dev->independent;
+	res->irq = NULL;
+}
+
+static void quirk_isapnp_mpu_resources(struct pnp_dev *dev)
+{
+	struct pnp_option *res;
+
+	res = dev->dependent;
+	if (!res)
+		return;
+
+	while (res->next)
+		res = res->next;
+
+	res->next = quirk_isapnp_mpu_options(dev);
+}
+
+#include <linux/pci.h>
+
+static void quirk_system_pci_resources(struct pnp_dev *dev)
+{
+	struct pci_dev *pdev = NULL;
+	struct resource *res;
+	resource_size_t pnp_start, pnp_end, pci_start, pci_end;
+	int i, j;
+
+	/*
+	 * Some BIOSes have PNP motherboard devices with resources that
+	 * partially overlap PCI BARs.  The PNP system driver claims these
+	 * motherboard resources, which prevents the normal PCI driver from
+	 * requesting them later.
+	 *
+	 * This patch disables the PNP resources that conflict with PCI BARs
+	 * so they won't be claimed by the PNP system driver.
+	 */
+	for_each_pci_dev(pdev) {
+		for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
+			if (!(pci_resource_flags(pdev, i) & IORESOURCE_MEM) ||
+			    pci_resource_len(pdev, i) == 0)
+				continue;
+
+			pci_start = pci_resource_start(pdev, i);
+			pci_end = pci_resource_end(pdev, i);
+			for (j = 0;
+			     (res = pnp_get_resource(dev, IORESOURCE_MEM, j));
+			     j++) {
+				if (res->flags & IORESOURCE_UNSET ||
+				    (res->start == 0 && res->end == 0))
+					continue;
+
+				pnp_start = res->start;
+				pnp_end = res->end;
+
+				/*
+				 * If the PNP region doesn't overlap the PCI
+				 * region at all, there's no problem.
+				 */
+				if (pnp_end < pci_start || pnp_start > pci_end)
+					continue;
+
+				/*
+				 * If the PNP region completely encloses (or is
+				 * at least as large as) the PCI region, that's
+				 * also OK.  For example, this happens when the
+				 * PNP device describes a bridge with PCI
+				 * behind it.
+				 */
+				if (pnp_start <= pci_start &&
+				    pnp_end >= pci_end)
+					continue;
+
+				/*
+				 * Otherwise, the PNP region overlaps *part* of
+				 * the PCI region, and that might prevent a PCI
+				 * driver from requesting its resources.
+				 */
+				dev_warn(&dev->dev, "mem resource "
+					"(0x%llx-0x%llx) overlaps %s BAR %d "
+					"(0x%llx-0x%llx), disabling\n",
+					(unsigned long long) pnp_start,
+					(unsigned long long) pnp_end,
+					pci_name(pdev), i,
+					(unsigned long long) pci_start,
+					(unsigned long long) pci_end);
+				res->flags = 0;
+			}
+		}
+	}
 }
 
 /*
@@ -113,32 +299,40 @@ static void quirk_sb16audio_resources(struct pnp_dev *dev)
 
 static struct pnp_fixup pnp_fixups[] = {
 	/* Soundblaster awe io port quirk */
-	{ "CTL0021", quirk_awe32_resources },
-	{ "CTL0022", quirk_awe32_resources },
-	{ "CTL0023", quirk_awe32_resources },
+	{"CTL0021", quirk_awe32_resources},
+	{"CTL0022", quirk_awe32_resources},
+	{"CTL0023", quirk_awe32_resources},
 	/* CMI 8330 interrupt and dma fix */
-	{ "@X@0001", quirk_cmi8330_resources },
+	{"@X@0001", quirk_cmi8330_resources},
 	/* Soundblaster audio device io port range quirk */
-	{ "CTL0001", quirk_sb16audio_resources },
-	{ "CTL0031", quirk_sb16audio_resources },
-	{ "CTL0041", quirk_sb16audio_resources },
-	{ "CTL0042", quirk_sb16audio_resources },
-	{ "CTL0043", quirk_sb16audio_resources },
-	{ "CTL0044", quirk_sb16audio_resources },
-	{ "CTL0045", quirk_sb16audio_resources },
-	{ "" }
+	{"CTL0001", quirk_sb16audio_resources},
+	{"CTL0031", quirk_sb16audio_resources},
+	{"CTL0041", quirk_sb16audio_resources},
+	{"CTL0042", quirk_sb16audio_resources},
+	{"CTL0043", quirk_sb16audio_resources},
+	{"CTL0044", quirk_sb16audio_resources},
+	{"CTL0045", quirk_sb16audio_resources},
+	/* Add IRQ-less MPU options */
+	{"ADS7151", quirk_ad1815_mpu_resources},
+	{"ADS7181", quirk_isapnp_mpu_resources},
+	{"AZT0002", quirk_isapnp_mpu_resources},
+	/* PnP resources that might overlap PCI BARs */
+	{"PNP0c01", quirk_system_pci_resources},
+	{"PNP0c02", quirk_system_pci_resources},
+	{""}
 };
 
 void pnp_fixup_device(struct pnp_dev *dev)
 {
-	int i = 0;
+	struct pnp_fixup *f;
 
-	while (*pnp_fixups[i].id) {
-		if (compare_pnp_id(dev->id,pnp_fixups[i].id)) {
-			pnp_dbg("Calling quirk for %s",
-		                  dev->dev.bus_id);
-			pnp_fixups[i].quirk_function(dev);
-		}
-		i++;
+	for (f = pnp_fixups; *f->id; f++) {
+		if (!compare_pnp_id(dev->id, f->id))
+			continue;
+#ifdef DEBUG
+		dev_dbg(&dev->dev, "%s: calling ", f->id);
+		print_fn_descriptor_symbol("%s\n", f->quirk_function);
+#endif
+		f->quirk_function(dev);
 	}
 }