X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fpnp%2Fresource.c;h=391828c7f2079a6a0a3727ae5a1f7fdfdbbc4f2a;hb=6e906f0e1c8633ed357a64e9861f1822789bee3d;hp=390b50096e30890f57d6cf6f55dc730d18013b47;hpb=860da5e578c25d1ab4528c0d1ad13f9969e3490f;p=linux-2.6

diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c
index 390b50096e..391828c7f2 100644
--- a/drivers/pnp/resource.c
+++ b/drivers/pnp/resource.c
@@ -98,13 +98,13 @@ int pnp_register_irq_resource(struct pnp_dev *dev, struct pnp_option *option,
 		int i;
 
 		for (i = 0; i < 16; i++)
-			if (test_bit(i, data->map))
+			if (test_bit(i, data->map.bits))
 				pcibios_penalize_isa_irq(i, 0);
 	}
 #endif
 
 #ifdef DEBUG
-	bitmap_scnprintf(buf, sizeof(buf), data->map, PNP_IRQ_NR);
+	bitmap_scnprintf(buf, sizeof(buf), data->map.bits, PNP_IRQ_NR);
 	dev_dbg(&dev->dev, "  irq bitmask %s flags %#x\n", buf,
 		data->flags);
 #endif
@@ -143,8 +143,11 @@ int pnp_register_port_resource(struct pnp_dev *dev, struct pnp_option *option,
 		option->port = data;
 
 	dev_dbg(&dev->dev, "  io  "
-		"min %#x max %#x align %d size %d flags %#x\n",
-		data->min, data->max, data->align, data->size, data->flags);
+		"min %#llx max %#llx align %lld size %lld flags %#x\n",
+		(unsigned long long) data->min,
+		(unsigned long long) data->max,
+		(unsigned long long) data->align,
+		(unsigned long long) data->size, data->flags);
 	return 0;
 }
 
@@ -162,8 +165,11 @@ int pnp_register_mem_resource(struct pnp_dev *dev, struct pnp_option *option,
 		option->mem = data;
 
 	dev_dbg(&dev->dev, "  mem "
-		"min %#x max %#x align %d size %d flags %#x\n",
-		data->min, data->max, data->align, data->size, data->flags);
+		"min %#llx max %#llx align %lld size %lld flags %#x\n",
+		(unsigned long long) data->min,
+		(unsigned long long) data->max,
+		(unsigned long long) data->align,
+		(unsigned long long) data->size, data->flags);
 	return 0;
 }
 
@@ -237,7 +243,7 @@ void pnp_free_option(struct pnp_option *option)
 	!((*(enda) < *(startb)) || (*(endb) < *(starta)))
 
 #define cannot_compare(flags) \
-((flags) & (IORESOURCE_UNSET | IORESOURCE_DISABLED))
+((flags) & IORESOURCE_DISABLED)
 
 int pnp_check_port(struct pnp_dev *dev, struct resource *res)
 {
@@ -499,81 +505,37 @@ int pnp_check_dma(struct pnp_dev *dev, struct resource *res)
 #endif
 }
 
-struct pnp_resource *pnp_get_pnp_resource(struct pnp_dev *dev,
-					  unsigned int type, unsigned int num)
+int pnp_resource_type(struct resource *res)
 {
-	struct pnp_resource_table *res = dev->res;
-
-	switch (type) {
-	case IORESOURCE_IO:
-		if (num >= PNP_MAX_PORT)
-			return NULL;
-		return &res->port[num];
-	case IORESOURCE_MEM:
-		if (num >= PNP_MAX_MEM)
-			return NULL;
-		return &res->mem[num];
-	case IORESOURCE_IRQ:
-		if (num >= PNP_MAX_IRQ)
-			return NULL;
-		return &res->irq[num];
-	case IORESOURCE_DMA:
-		if (num >= PNP_MAX_DMA)
-			return NULL;
-		return &res->dma[num];
-	}
-	return NULL;
+	return res->flags & (IORESOURCE_IO  | IORESOURCE_MEM |
+			     IORESOURCE_IRQ | IORESOURCE_DMA);
 }
 
 struct resource *pnp_get_resource(struct pnp_dev *dev,
 				  unsigned int type, unsigned int num)
 {
 	struct pnp_resource *pnp_res;
+	struct resource *res;
 
-	pnp_res = pnp_get_pnp_resource(dev, type, num);
-	if (pnp_res)
-		return &pnp_res->res;
-
+	list_for_each_entry(pnp_res, &dev->resources, list) {
+		res = &pnp_res->res;
+		if (pnp_resource_type(res) == type && num-- == 0)
+			return res;
+	}
 	return NULL;
 }
 EXPORT_SYMBOL(pnp_get_resource);
 
-static struct pnp_resource *pnp_new_resource(struct pnp_dev *dev, int type)
+static struct pnp_resource *pnp_new_resource(struct pnp_dev *dev)
 {
 	struct pnp_resource *pnp_res;
-	int i;
 
-	switch (type) {
-	case IORESOURCE_IO:
-		for (i = 0; i < PNP_MAX_PORT; i++) {
-			pnp_res = pnp_get_pnp_resource(dev, IORESOURCE_IO, i);
-			if (pnp_res && !pnp_resource_valid(&pnp_res->res))
-				return pnp_res;
-		}
-		break;
-	case IORESOURCE_MEM:
-		for (i = 0; i < PNP_MAX_MEM; i++) {
-			pnp_res = pnp_get_pnp_resource(dev, IORESOURCE_MEM, i);
-			if (pnp_res && !pnp_resource_valid(&pnp_res->res))
-				return pnp_res;
-		}
-		break;
-	case IORESOURCE_IRQ:
-		for (i = 0; i < PNP_MAX_IRQ; i++) {
-			pnp_res = pnp_get_pnp_resource(dev, IORESOURCE_IRQ, i);
-			if (pnp_res && !pnp_resource_valid(&pnp_res->res))
-				return pnp_res;
-		}
-		break;
-	case IORESOURCE_DMA:
-		for (i = 0; i < PNP_MAX_DMA; i++) {
-			pnp_res = pnp_get_pnp_resource(dev, IORESOURCE_DMA, i);
-			if (pnp_res && !pnp_resource_valid(&pnp_res->res))
-				return pnp_res;
-		}
-		break;
-	}
-	return NULL;
+	pnp_res = kzalloc(sizeof(struct pnp_resource), GFP_KERNEL);
+	if (!pnp_res)
+		return NULL;
+
+	list_add_tail(&pnp_res->list, &dev->resources);
+	return pnp_res;
 }
 
 struct pnp_resource *pnp_add_irq_resource(struct pnp_dev *dev, int irq,
@@ -581,15 +543,10 @@ struct pnp_resource *pnp_add_irq_resource(struct pnp_dev *dev, int irq,
 {
 	struct pnp_resource *pnp_res;
 	struct resource *res;
-	static unsigned char warned;
 
-	pnp_res = pnp_new_resource(dev, IORESOURCE_IRQ);
+	pnp_res = pnp_new_resource(dev);
 	if (!pnp_res) {
-		if (!warned) {
-			dev_err(&dev->dev, "can't add resource for IRQ %d\n",
-				irq);
-			warned = 1;
-		}
+		dev_err(&dev->dev, "can't add resource for IRQ %d\n", irq);
 		return NULL;
 	}
 
@@ -607,15 +564,10 @@ struct pnp_resource *pnp_add_dma_resource(struct pnp_dev *dev, int dma,
 {
 	struct pnp_resource *pnp_res;
 	struct resource *res;
-	static unsigned char warned;
 
-	pnp_res = pnp_new_resource(dev, IORESOURCE_DMA);
+	pnp_res = pnp_new_resource(dev);
 	if (!pnp_res) {
-		if (!warned) {
-			dev_err(&dev->dev, "can't add resource for DMA %d\n",
-				dma);
-			warned = 1;
-		}
+		dev_err(&dev->dev, "can't add resource for DMA %d\n", dma);
 		return NULL;
 	}
 
@@ -634,16 +586,12 @@ struct pnp_resource *pnp_add_io_resource(struct pnp_dev *dev,
 {
 	struct pnp_resource *pnp_res;
 	struct resource *res;
-	static unsigned char warned;
 
-	pnp_res = pnp_new_resource(dev, IORESOURCE_IO);
+	pnp_res = pnp_new_resource(dev);
 	if (!pnp_res) {
-		if (!warned) {
-			dev_err(&dev->dev, "can't add resource for IO "
-				"%#llx-%#llx\n",(unsigned long long) start,
-				(unsigned long long) end);
-			warned = 1;
-		}
+		dev_err(&dev->dev, "can't add resource for IO %#llx-%#llx\n",
+			(unsigned long long) start,
+			(unsigned long long) end);
 		return NULL;
 	}
 
@@ -663,16 +611,12 @@ struct pnp_resource *pnp_add_mem_resource(struct pnp_dev *dev,
 {
 	struct pnp_resource *pnp_res;
 	struct resource *res;
-	static unsigned char warned;
 
-	pnp_res = pnp_new_resource(dev, IORESOURCE_MEM);
+	pnp_res = pnp_new_resource(dev);
 	if (!pnp_res) {
-		if (!warned) {
-			dev_err(&dev->dev, "can't add resource for MEM "
-				"%#llx-%#llx\n",(unsigned long long) start,
-				(unsigned long long) end);
-			warned = 1;
-		}
+		dev_err(&dev->dev, "can't add resource for MEM %#llx-%#llx\n",
+			(unsigned long long) start,
+			(unsigned long long) end);
 		return NULL;
 	}
 
@@ -686,6 +630,68 @@ struct pnp_resource *pnp_add_mem_resource(struct pnp_dev *dev,
 	return pnp_res;
 }
 
+static int pnp_possible_option(struct pnp_option *option, int type,
+			       resource_size_t start, resource_size_t size)
+{
+	struct pnp_option *tmp;
+	struct pnp_port *port;
+	struct pnp_mem *mem;
+	struct pnp_irq *irq;
+	struct pnp_dma *dma;
+
+	if (!option)
+		return 0;
+
+	for (tmp = option; tmp; tmp = tmp->next) {
+		switch (type) {
+		case IORESOURCE_IO:
+			for (port = tmp->port; port; port = port->next) {
+				if (port->min == start && port->size == size)
+					return 1;
+			}
+			break;
+		case IORESOURCE_MEM:
+			for (mem = tmp->mem; mem; mem = mem->next) {
+				if (mem->min == start && mem->size == size)
+					return 1;
+			}
+			break;
+		case IORESOURCE_IRQ:
+			for (irq = tmp->irq; irq; irq = irq->next) {
+				if (start < PNP_IRQ_NR &&
+				    test_bit(start, irq->map.bits))
+					return 1;
+			}
+			break;
+		case IORESOURCE_DMA:
+			for (dma = tmp->dma; dma; dma = dma->next) {
+				if (dma->map & (1 << start))
+					return 1;
+			}
+			break;
+		}
+	}
+
+	return 0;
+}
+
+/*
+ * Determine whether the specified resource is a possible configuration
+ * for this device.
+ */
+int pnp_possible_config(struct pnp_dev *dev, int type, resource_size_t start,
+			resource_size_t size)
+{
+	if (pnp_possible_option(dev->independent, type, start, size))
+		return 1;
+
+	if (pnp_possible_option(dev->dependent, type, start, size))
+		return 1;
+
+	return 0;
+}
+EXPORT_SYMBOL(pnp_possible_config);
+
 /* format is: pnp_reserve_irq=irq1[,irq2] .... */
 static int __init pnp_setup_reserve_irq(char *str)
 {