Merge bk://linux-pnp.bkbits.net/pnp-2.5

into home.osdl.org:/home/torvalds/v2.5/linux

drivers/pnp/interface.c

@@ -259,7 +259,10 @@ static ssize_t pnp_show_current_resources(struct device *dmdev, char *buf)
 	for (i = 0; i < PNP_MAX_PORT; i++) {
 		if (pnp_port_valid(dev, i)) {
 			pnp_printf(buffer,"io");
-			pnp_printf(buffer," 0x%lx-0x%lx \n",
+			if (pnp_port_flags(dev, i) & IORESOURCE_DISABLED)
+				pnp_printf(buffer," disabled\n");
+			else
+				pnp_printf(buffer," 0x%lx-0x%lx\n",
 						pnp_port_start(dev, i),
 						pnp_port_end(dev, i));
 		}
@@ -267,7 +270,10 @@ static ssize_t pnp_show_current_resources(struct device *dmdev, char *buf)
 	for (i = 0; i < PNP_MAX_MEM; i++) {
 		if (pnp_mem_valid(dev, i)) {
 			pnp_printf(buffer,"mem");
-			pnp_printf(buffer," 0x%lx-0x%lx \n",
+			if (pnp_mem_flags(dev, i) & IORESOURCE_DISABLED)
+				pnp_printf(buffer," disabled\n");
+			else
+				pnp_printf(buffer," 0x%lx-0x%lx\n",
 						pnp_mem_start(dev, i),
 						pnp_mem_end(dev, i));
 		}
@@ -275,13 +281,21 @@ static ssize_t pnp_show_current_resources(struct device *dmdev, char *buf)
 	for (i = 0; i < PNP_MAX_IRQ; i++) {
 		if (pnp_irq_valid(dev, i)) {
 			pnp_printf(buffer,"irq");
-			pnp_printf(buffer," %ld \n", pnp_irq(dev, i));
+			if (pnp_irq_flags(dev, i) & IORESOURCE_DISABLED)
+				pnp_printf(buffer," disabled\n");
+			else
+				pnp_printf(buffer," %ld\n",
+						pnp_irq(dev, i));
 		}
 	}
 	for (i = 0; i < PNP_MAX_DMA; i++) {
 		if (pnp_dma_valid(dev, i)) {
 			pnp_printf(buffer,"dma");
-			pnp_printf(buffer," %ld \n", pnp_dma(dev, i));
+			if (pnp_dma_flags(dev, i) & IORESOURCE_DISABLED)
+				pnp_printf(buffer," disabled\n");
+			else
+				pnp_printf(buffer," %ld\n",
+						pnp_dma(dev, i));
 		}
 	}
 	ret = (buffer->curr - buf);

drivers/pnp/manager.c

@@ -45,9 +45,15 @@ static int pnp_assign_port(struct pnp_dev *dev, struct pnp_port *rule, int idx)
 	flags = &dev->res.port_resource[idx].flags;
 
 	/* set the initial values */
+	*flags = *flags | rule->flags | IORESOURCE_IO;
+
+	if (!rule->size) {
+		*flags |= IORESOURCE_DISABLED;
+		return 1; /* skip disabled resource requests */
+	}
+
 	*start = rule->min;
 	*end = *start + rule->size - 1;
-	*flags = *flags | rule->flags | IORESOURCE_IO;
 
 	/* run through until pnp_check_port is happy */
 	while (!pnp_check_port(dev, idx)) {
@@ -81,8 +87,6 @@ static int pnp_assign_mem(struct pnp_dev *dev, struct pnp_mem *rule, int idx)
 	flags = &dev->res.mem_resource[idx].flags;
 
 	/* set the initial values */
-	*start = rule->min;
-	*end = *start + rule->size -1;
 	*flags = *flags | rule->flags | IORESOURCE_MEM;
 
 	/* convert pnp flags to standard Linux flags */
@@ -95,6 +99,14 @@ static int pnp_assign_mem(struct pnp_dev *dev, struct pnp_mem *rule, int idx)
 	if (rule->flags & IORESOURCE_MEM_SHADOWABLE)
 		*flags |= IORESOURCE_SHADOWABLE;
 
+	if (!rule->size) {
+		*flags |= IORESOURCE_DISABLED;
+		return 1; /* skip disabled resource requests */
+	}
+
+	*start = rule->min;
+	*end = *start + rule->size -1;
+
 	/* run through until pnp_check_mem is happy */
 	while (!pnp_check_mem(dev, idx)) {
 		*start += rule->align;
@@ -135,6 +147,11 @@ static int pnp_assign_irq(struct pnp_dev * dev, struct pnp_irq *rule, int idx)
 	/* set the initial values */
 	*flags = *flags | rule->flags | IORESOURCE_IRQ;
 
+	if (!rule->map) {
+		*flags |= IORESOURCE_DISABLED;
+		return 1; /* skip disabled resource requests */
+	}
+
 	for (i = 0; i < 16; i++) {
 		if(rule->map & (1<<xtab[i])) {
 			*start = *end = xtab[i];
@@ -175,6 +192,11 @@ static int pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx)
 	/* set the initial values */
 	*flags = *flags | rule->flags | IORESOURCE_DMA;
 
+	if (!rule->map) {
+		*flags |= IORESOURCE_DISABLED;
+		return 1; /* skip disabled resource requests */
+	}
+
 	for (i = 0; i < 8; i++) {
 		if(rule->map & (1<<xtab[i])) {
 			*start = *end = xtab[i];
@@ -378,25 +400,24 @@ int pnp_manual_config_dev(struct pnp_dev *dev, struct pnp_resource_table * res,
 	dev->res = *res;
 	if (!(mode & PNP_CONFIG_FORCE)) {
 		for (i = 0; i < PNP_MAX_PORT; i++) {
-			if(pnp_check_port(dev,i))
+			if(!pnp_check_port(dev,i))
 				goto fail;
 		}
 		for (i = 0; i < PNP_MAX_MEM; i++) {
-			if(pnp_check_mem(dev,i))
+			if(!pnp_check_mem(dev,i))
 				goto fail;
 		}
 		for (i = 0; i < PNP_MAX_IRQ; i++) {
-			if(pnp_check_irq(dev,i))
+			if(!pnp_check_irq(dev,i))
 				goto fail;
 		}
 		for (i = 0; i < PNP_MAX_DMA; i++) {
-			if(pnp_check_dma(dev,i))
+			if(!pnp_check_dma(dev,i))
 				goto fail;
 		}
 	}
 	up(&pnp_res_mutex);
 
-	pnp_auto_config_dev(dev);
 	kfree(bak);
 	return 0;
 

drivers/pnp/resource.c

@@ -286,6 +286,8 @@ int pnp_check_port(struct pnp_dev * dev, int idx)
 			continue;
 		for (tmp = 0; tmp < PNP_MAX_PORT; tmp++) {
 			if (tdev->res.port_resource[tmp].flags & IORESOURCE_IO) {
+				if (pnp_port_flags(dev, tmp) & IORESOURCE_DISABLED)
+					continue;
 				tport = &tdev->res.port_resource[tmp].start;
 				tend = &tdev->res.port_resource[tmp].end;
 				if (ranged_conflict(port,end,tport,tend))
@@ -340,6 +342,8 @@ int pnp_check_mem(struct pnp_dev * dev, int idx)
 			continue;
 		for (tmp = 0; tmp < PNP_MAX_MEM; tmp++) {
 			if (tdev->res.mem_resource[tmp].flags & IORESOURCE_MEM) {
+				if (pnp_mem_flags(dev, tmp) & IORESOURCE_DISABLED)
+					continue;
 				taddr = &tdev->res.mem_resource[tmp].start;
 				tend = &tdev->res.mem_resource[tmp].end;
 				if (ranged_conflict(addr,end,taddr,tend))
@@ -409,6 +413,8 @@ int pnp_check_irq(struct pnp_dev * dev, int idx)
 			continue;
 		for (tmp = 0; tmp < PNP_MAX_IRQ; tmp++) {
 			if (tdev->res.irq_resource[tmp].flags & IORESOURCE_IRQ) {
+				if (pnp_irq_flags(dev, tmp) & IORESOURCE_DISABLED)
+					continue;
 				if ((tdev->res.irq_resource[tmp].start == *irq))
 					return 0;
 			}
@@ -462,6 +468,8 @@ int pnp_check_dma(struct pnp_dev * dev, int idx)
 			continue;
 		for (tmp = 0; tmp < PNP_MAX_DMA; tmp++) {
 			if (tdev->res.dma_resource[tmp].flags & IORESOURCE_DMA) {
+				if (pnp_dma_flags(dev, tmp) & IORESOURCE_DISABLED)
+					continue;
 				if ((tdev->res.dma_resource[tmp].start == *dma))
 					return 0;
 			}

drivers/pnp/support.c

@@ -68,9 +68,13 @@ static void current_irqresource(struct pnp_resource_table * res, int irq)
 	int i = 0;
 	while ((res->irq_resource[i].flags & IORESOURCE_IRQ) && i < PNP_MAX_IRQ) i++;
 	if (i < PNP_MAX_IRQ) {
+		res->irq_resource[i].flags = IORESOURCE_IRQ;  // Also clears _UNSET flag
+		if (irq == -1) {
+			res->irq_resource[i].flags |= IORESOURCE_DISABLED;
+			return;
+		}
 		res->irq_resource[i].start =
 		res->irq_resource[i].end = (unsigned long) irq;
-		res->irq_resource[i].flags = IORESOURCE_IRQ;  // Also clears _UNSET flag
 	}
 }
 
@@ -79,9 +83,13 @@ static void current_dmaresource(struct pnp_resource_table * res, int dma)
 	int i = 0;
 	while ((res->dma_resource[i].flags & IORESOURCE_DMA) && i < PNP_MAX_DMA) i++;
 	if (i < PNP_MAX_DMA) {
+		res->dma_resource[i].flags = IORESOURCE_DMA;  // Also clears _UNSET flag
+		if (dma == -1) {
+			res->dma_resource[i].flags |= IORESOURCE_DISABLED;
+			return;
+		}
 		res->dma_resource[i].start =
 		res->dma_resource[i].end = (unsigned long) dma;
-		res->dma_resource[i].flags = IORESOURCE_DMA;  // Also clears _UNSET flag
 	}
 }
 
@@ -90,9 +98,13 @@ static void current_ioresource(struct pnp_resource_table * res, int io, int len)
 	int i = 0;
 	while ((res->port_resource[i].flags & IORESOURCE_IO) && i < PNP_MAX_PORT) i++;
 	if (i < PNP_MAX_PORT) {
+		res->port_resource[i].flags = IORESOURCE_IO;  // Also clears _UNSET flag
+		if (len <= 0 || (io + len -1) >= 0x10003) {
+			res->port_resource[i].flags |= IORESOURCE_DISABLED;
+			return;
+		}
 		res->port_resource[i].start = (unsigned long) io;
 		res->port_resource[i].end = (unsigned long)(io + len - 1);
-		res->port_resource[i].flags = IORESOURCE_IO;  // Also clears _UNSET flag
 	}
 }
 
@@ -101,9 +113,13 @@ static void current_memresource(struct pnp_resource_table * res, int mem, int le
 	int i = 0;
 	while ((res->mem_resource[i].flags & IORESOURCE_MEM) && i < PNP_MAX_MEM) i++;
 	if (i < PNP_MAX_MEM) {
+		res->mem_resource[i].flags = IORESOURCE_MEM;  // Also clears _UNSET flag
+		if (len <= 0) {
+			res->mem_resource[i].flags |= IORESOURCE_DISABLED;
+			return;
+		}
 		res->mem_resource[i].start = (unsigned long) mem;
 		res->mem_resource[i].end = (unsigned long)(mem + len - 1);
-		res->mem_resource[i].flags = IORESOURCE_MEM;  // Also clears _UNSET flag
 	}
 }
 

include/linux/ioport.h

@@ -43,6 +43,7 @@ struct resource_list {
 #define IORESOURCE_SHADOWABLE	0x00010000
 #define IORESOURCE_BUS_HAS_VGA	0x00080000
 
+#define IORESOURCE_DISABLED	0x10000000
 #define IORESOURCE_UNSET	0x20000000
 #define IORESOURCE_AUTO		0x40000000
 #define IORESOURCE_BUSY		0x80000000	/* Driver has marked this resource busy */