[PATCH] pcmcia: mark parent bridge windows as resources available for PCMCIA devices
Dominik Brodowski [Mon, 27 Jun 2005 23:28:46 +0000 (16:28 -0700)]
Automatically mark the parent PCI-PCI bridge windows as resources available
for PCMCIA usage.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/pcmcia/rsrc_mgr.c
drivers/pcmcia/rsrc_nonstatic.c
include/pcmcia/ss.h

index b6843f8..b9269e6 100644 (file)
@@ -72,7 +72,7 @@ int pcmcia_adjust_resource_info(adjust_t *adj)
                        /* you can't use the old interface if the new
                         * one was used before */
                        spin_lock_irqsave(&s->lock, flags);
-                       if ((s->resource_setup_done) &&
+                       if ((s->resource_setup_new) &&
                            !(s->resource_setup_old)) {
                                spin_unlock_irqrestore(&s->lock, flags);
                                continue;
index 6b46360..c8f2179 100644 (file)
@@ -768,6 +768,58 @@ 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;
+
+       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 +834,8 @@ static int nonstatic_init(struct pcmcia_socket *s)
 
        s->resource_data = (void *) data;
 
+       nonstatic_autoadd_resources(s);
+
        return 0;
 }
 
@@ -862,6 +916,8 @@ 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 +968,8 @@ 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;
 }
index 67b867f..f879776 100644 (file)
@@ -216,8 +216,9 @@ struct pcmcia_socket {
 
        /* is set to one if resource setup is done using adjust_resource_info() */
        u8                              resource_setup_old:1;
+       u8                              resource_setup_new:1;
 
-       u8                              reserved:6;
+       u8                              reserved:5;
 
        /* socket operations */
        struct pccard_operations *      ops;