X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fpcmcia%2Frsrc_nonstatic.c;h=c42455d20eb683c6d2c99de733966ad403c5941d;hb=62351cc38d3eaf3de0327054dd6ebc039f4da80d;hp=6b463609a3aa91f6ff862e82905845398ca1e515;hpb=22916638b124e859b595099bd0c86a1e09e767fb;p=linux-2.6

diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c
index 6b463609a3..c42455d20e 100644
--- a/drivers/pcmcia/rsrc_nonstatic.c
+++ b/drivers/pcmcia/rsrc_nonstatic.c
@@ -372,6 +372,9 @@ static int do_mem_probe(u_long base, u_long num, struct pcmcia_socket *s)
 	   base, base+num-1);
     bad = fail = 0;
     step = (num < 0x20000) ? 0x2000 : ((num>>4) & ~0x1fff);
+    /* don't allow too large steps */
+    if (step > 0x800000)
+	step = 0x800000;
     /* cis_readable wants to map 2x map_size */
     if (step < 2 * s->map_size)
 	step = 2 * s->map_size;
@@ -465,8 +468,7 @@ static void validate_mem(struct pcmcia_socket *s, unsigned int probe_mask)
 
 	for (m = s_data->mem_db.next; m != &s_data->mem_db; m = mm.next) {
 		mm = *m;
-		if (do_mem_probe(mm.base, mm.num, s))
-			break;
+		do_mem_probe(mm.base, mm.num, s);
 	}
 }
 
@@ -768,6 +770,69 @@ static int nonstatic_adjust_resource_info(struct pcmcia_socket *s, adjust_t *adj
 	return CS_UNSUPPORTED_FUNCTION;
 }
 
+#ifdef CONFIG_PCI
+static int nonstatic_autoadd_resources(struct pcmcia_socket *s)
+{
+	struct resource *res;
+	int i, done = 0;
+
+	if (!s->cb_dev || !s->cb_dev->bus)
+		return -ENODEV;
+
+#if defined(CONFIG_X86) || defined(CONFIG_X86_64)
+	/* If this is the root bus, the risk of hitting
+	 * some strange system devices which aren't protected
+	 * by either ACPI resource tables or properly requested
+	 * resources is too big. Therefore, don't do auto-adding
+	 * of resources at the moment.
+	 */
+	if (s->cb_dev->bus->number == 0)
+		return -EINVAL;
+#endif
+
+	for (i=0; i < PCI_BUS_NUM_RESOURCES; i++) {
+		res = s->cb_dev->bus->resource[i];
+		if (!res)
+			continue;
+
+		if (res->flags & IORESOURCE_IO) {
+			if (res == &ioport_resource)
+				continue;
+			printk(KERN_INFO "pcmcia: parent PCI bridge I/O window: 0x%lx - 0x%lx\n",
+			       res->start, res->end);
+			if (!adjust_io(s, ADD_MANAGED_RESOURCE, res->start, res->end))
+				done |= IORESOURCE_IO;
+
+		}
+
+		if (res->flags & IORESOURCE_MEM) {
+			if (res == &iomem_resource)
+				continue;
+			printk(KERN_INFO "pcmcia: parent PCI bridge Memory window: 0x%lx - 0x%lx\n",
+			       res->start, res->end);
+			if (!adjust_memory(s, ADD_MANAGED_RESOURCE, res->start, res->end))
+				done |= IORESOURCE_MEM;
+		}
+	}
+
+	/* if we got at least one of IO, and one of MEM, we can be glad and
+	 * activate the PCMCIA subsystem */
+	if (done & (IORESOURCE_MEM | IORESOURCE_IO))
+		s->resource_setup_done = 1;
+
+	return 0;
+}
+
+#else
+
+static inline int nonstatic_autoadd_resources(struct pcmcia_socket *s)
+{
+	return -ENODEV;
+}
+
+#endif
+
+
 static int nonstatic_init(struct pcmcia_socket *s)
 {
 	struct socket_data *data;
@@ -782,6 +847,8 @@ static int nonstatic_init(struct pcmcia_socket *s)
 
 	s->resource_data = (void *) data;
 
+	nonstatic_autoadd_resources(s);
+
 	return 0;
 }
 
@@ -862,6 +929,8 @@ static ssize_t store_io_db(struct class_device *class_dev, const char *buf, size
 		return -EINVAL;
 
 	ret = adjust_io(s, add, start_addr, end_addr);
+	if (!ret)
+		s->resource_setup_new = 1;
 
 	return ret ? ret : count;
 }
@@ -912,6 +981,8 @@ static ssize_t store_mem_db(struct class_device *class_dev, const char *buf, siz
 		return -EINVAL;
 
 	ret = adjust_memory(s, add, start_addr, end_addr);
+	if (!ret)
+		s->resource_setup_new = 1;
 
 	return ret ? ret : count;
 }