[PATCH 08/11] pcmcia: use struct resource for PCMCIA devices, part 2
Dominik Brodowski
linux at dominikbrodowski.net
Sun Aug 1 08:59:07 EDT 2010
Use struct resource * also for iomem resources.
CC: linux-mtd at lists.infradead.org
CC: netdev at vger.kernel.org
CC: linux-wireless at vger.kernel.org
CC: Jiri Kosina <jkosina at suse.cz>
Signed-off-by: Dominik Brodowski <linux at dominikbrodowski.net>
---
drivers/char/pcmcia/ipwireless/main.c | 13 +-----
drivers/mtd/maps/pcmciamtd.c | 1 -
drivers/net/pcmcia/ibmtr_cs.c | 1 -
drivers/net/wireless/b43/pcmcia.c | 3 +-
drivers/net/wireless/ray_cs.c | 8 ----
drivers/pcmcia/cs_internal.h | 1 +
drivers/pcmcia/ds.c | 7 ++-
drivers/pcmcia/pcmcia_resource.c | 70 ++++++++++++++++++---------------
include/pcmcia/cs.h | 35 +++++++----------
include/pcmcia/ds.h | 15 ++++++-
10 files changed, 74 insertions(+), 80 deletions(-)
diff --git a/drivers/char/pcmcia/ipwireless/main.c b/drivers/char/pcmcia/ipwireless/main.c
index 6c4aa4b..67bdb05 100644
--- a/drivers/char/pcmcia/ipwireless/main.c
+++ b/drivers/char/pcmcia/ipwireless/main.c
@@ -157,15 +157,12 @@ static int ipwireless_probe(struct pcmcia_device *p_dev,
return 0;
exit3:
- pcmcia_release_window(p_dev, ipw->handle_attr_memory);
exit2:
if (ipw->common_memory) {
release_mem_region(ipw->request_common_memory.Base,
ipw->request_common_memory.Size);
iounmap(ipw->common_memory);
- pcmcia_release_window(p_dev, ipw->handle_common_memory);
- } else
- pcmcia_release_window(p_dev, ipw->handle_common_memory);
+ }
exit1:
release_resource(io_resource);
pcmcia_disable_device(p_dev);
@@ -238,13 +235,12 @@ exit:
release_mem_region(ipw->request_attr_memory.Base,
ipw->request_attr_memory.Size);
iounmap(ipw->attr_memory);
- pcmcia_release_window(link, ipw->handle_attr_memory);
+
}
if (ipw->common_memory) {
release_mem_region(ipw->request_common_memory.Base,
ipw->request_common_memory.Size);
iounmap(ipw->common_memory);
- pcmcia_release_window(link, ipw->handle_common_memory);
}
pcmcia_disable_device(link);
return -1;
@@ -262,11 +258,6 @@ static void release_ipwireless(struct ipw_dev *ipw)
ipw->request_attr_memory.Size);
iounmap(ipw->attr_memory);
}
- if (ipw->common_memory)
- pcmcia_release_window(ipw->link, ipw->handle_common_memory);
- if (ipw->attr_memory)
- pcmcia_release_window(ipw->link, ipw->handle_attr_memory);
-
pcmcia_disable_device(ipw->link);
}
diff --git a/drivers/mtd/maps/pcmciamtd.c b/drivers/mtd/maps/pcmciamtd.c
index f97463e..e9ca5ba 100644
--- a/drivers/mtd/maps/pcmciamtd.c
+++ b/drivers/mtd/maps/pcmciamtd.c
@@ -344,7 +344,6 @@ static void pcmciamtd_release(struct pcmcia_device *link)
iounmap(dev->win_base);
dev->win_base = NULL;
}
- pcmcia_release_window(link, link->win);
}
pcmcia_disable_device(link);
}
diff --git a/drivers/net/pcmcia/ibmtr_cs.c b/drivers/net/pcmcia/ibmtr_cs.c
index c0b3cdd..b0d06a3 100644
--- a/drivers/net/pcmcia/ibmtr_cs.c
+++ b/drivers/net/pcmcia/ibmtr_cs.c
@@ -319,7 +319,6 @@ static void ibmtr_release(struct pcmcia_device *link)
if (link->win) {
struct tok_info *ti = netdev_priv(dev);
iounmap(ti->mmio);
- pcmcia_release_window(link, info->sram_win_handle);
}
pcmcia_disable_device(link);
}
diff --git a/drivers/net/wireless/b43/pcmcia.c b/drivers/net/wireless/b43/pcmcia.c
index ffe1f89..dfbc41d 100644
--- a/drivers/net/wireless/b43/pcmcia.c
+++ b/drivers/net/wireless/b43/pcmcia.c
@@ -76,8 +76,7 @@ static int __devinit b43_pcmcia_probe(struct pcmcia_device *dev)
dev->conf.Attributes = CONF_ENABLE_IRQ;
dev->conf.IntType = INT_MEMORY_AND_IO;
- win.Attributes = WIN_ADDR_SPACE_MEM | WIN_MEMORY_TYPE_CM |
- WIN_ENABLE | WIN_DATA_WIDTH_16 |
+ win.Attributes = WIN_ENABLE | WIN_DATA_WIDTH_16 |
WIN_USE_WAIT;
win.Base = 0;
win.Size = SSB_CORE_SIZE;
diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c
index 7eb339a..a860bce 100644
--- a/drivers/net/wireless/ray_cs.c
+++ b/drivers/net/wireless/ray_cs.c
@@ -785,7 +785,6 @@ static void ray_release(struct pcmcia_device *link)
{
struct net_device *dev = link->priv;
ray_dev_t *local = netdev_priv(dev);
- int i;
dev_dbg(&link->dev, "ray_release\n");
@@ -794,13 +793,6 @@ static void ray_release(struct pcmcia_device *link)
iounmap(local->sram);
iounmap(local->rmem);
iounmap(local->amem);
- /* Do bother checking to see if these succeed or not */
- i = pcmcia_release_window(link, local->amem_handle);
- if (i != 0)
- dev_dbg(&link->dev, "ReleaseWindow(local->amem) ret = %x\n", i);
- i = pcmcia_release_window(link, local->rmem_handle);
- if (i != 0)
- dev_dbg(&link->dev, "ReleaseWindow(local->rmem) ret = %x\n", i);
pcmcia_disable_device(link);
dev_dbg(&link->dev, "ray_release ending\n");
diff --git a/drivers/pcmcia/cs_internal.h b/drivers/pcmcia/cs_internal.h
index 511ac75..37d38b5 100644
--- a/drivers/pcmcia/cs_internal.h
+++ b/drivers/pcmcia/cs_internal.h
@@ -40,6 +40,7 @@ typedef struct config_t {
unsigned int CardValues;
struct resource io[MAX_IO_WIN]; /* io ports */
+ struct resource mem[MAX_WIN]; /* mem areas */
struct {
u_int Attributes;
diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c
index 7ddd19a..61de128 100644
--- a/drivers/pcmcia/ds.c
+++ b/drivers/pcmcia/ds.c
@@ -552,13 +552,16 @@ static struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s,
}
p_dev->function_config = c;
kref_init(&c->ref);
- for (i = 0; i < MAX_IO_WIN; i++) {
+ for (i = 0; i < (MAX_IO_WIN + MAX_WIN); i++) {
c->io[i].name = dev_name(&p_dev->dev);
- c->io[i].flags = IORESOURCE_IO;
+ c->io[i].flags = i < MAX_IO_WIN ? IORESOURCE_IO :
+ IORESOURCE_MEM;
}
}
for (i = 0; i < MAX_IO_WIN; i++)
p_dev->resource[i] = &p_dev->function_config->io[i];
+ for (; i < (MAX_IO_WIN + MAX_WIN); i++)
+ p_dev->resource[i] = &p_dev->function_config->mem[i-MAX_IO_WIN];
mutex_unlock(&s->ops_mutex);
diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c
index 975baaa..01f8e56 100644
--- a/drivers/pcmcia/pcmcia_resource.c
+++ b/drivers/pcmcia/pcmcia_resource.c
@@ -196,15 +196,17 @@ int pcmcia_map_mem_page(struct pcmcia_device *p_dev, window_handle_t wh,
unsigned int offset)
{
struct pcmcia_socket *s = p_dev->socket;
+ struct resource *res = wh;
+ unsigned int w;
int ret;
- wh--;
- if (wh >= MAX_WIN)
+ w = ((res->flags & IORESOURCE_BITS & WIN_FLAGS_REQ) >> 2) - 1;
+ if (w >= MAX_WIN)
return -EINVAL;
mutex_lock(&s->ops_mutex);
- s->win[wh].card_start = offset;
- ret = s->ops->set_mem_map(s, &s->win[wh]);
+ s->win[w].card_start = offset;
+ ret = s->ops->set_mem_map(s, &s->win[w]);
if (ret)
dev_warn(&s->dev, "failed to set_mem_map\n");
mutex_unlock(&s->ops_mutex);
@@ -371,19 +373,22 @@ out:
} /* pcmcia_release_io */
-int pcmcia_release_window(struct pcmcia_device *p_dev, window_handle_t wh)
+int pcmcia_release_window(struct pcmcia_device *p_dev, struct resource *res)
{
struct pcmcia_socket *s = p_dev->socket;
pccard_mem_map *win;
+ unsigned int w;
- wh--;
- if (wh >= MAX_WIN)
+ dev_dbg(&p_dev->dev, "releasing window %pR\n", res);
+
+ w = ((res->flags & IORESOURCE_BITS & WIN_FLAGS_REQ) >> 2) - 1;
+ if (w >= MAX_WIN)
return -EINVAL;
mutex_lock(&s->ops_mutex);
- win = &s->win[wh];
+ win = &s->win[w];
- if (!(p_dev->_win & CLIENT_WIN_REQ(wh))) {
+ if (!(p_dev->_win & CLIENT_WIN_REQ(w))) {
dev_dbg(&s->dev, "not releasing unknown window\n");
mutex_unlock(&s->ops_mutex);
return -EINVAL;
@@ -392,7 +397,7 @@ int pcmcia_release_window(struct pcmcia_device *p_dev, window_handle_t wh)
/* Shut down memory window */
win->flags &= ~MAP_ACTIVE;
s->ops->set_mem_map(s, win);
- s->state &= ~SOCKET_WIN_REQ(wh);
+ s->state &= ~SOCKET_WIN_REQ(w);
/* Release system memory */
if (win->res) {
@@ -400,7 +405,7 @@ int pcmcia_release_window(struct pcmcia_device *p_dev, window_handle_t wh)
kfree(win->res);
win->res = NULL;
}
- p_dev->_win &= ~CLIENT_WIN_REQ(wh);
+ p_dev->_win &= ~CLIENT_WIN_REQ(w);
mutex_unlock(&s->ops_mutex);
return 0;
@@ -775,23 +780,18 @@ int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_ha
struct pcmcia_socket *s = p_dev->socket;
pccard_mem_map *win;
u_long align;
+ struct resource *res;
int w;
if (!(s->state & SOCKET_PRESENT)) {
dev_dbg(&s->dev, "No card present\n");
return -ENODEV;
}
- if (req->Attributes & (WIN_PAGED | WIN_SHARED)) {
- dev_dbg(&s->dev, "bad attribute setting for iomem region\n");
- return -EINVAL;
- }
/* Window size defaults to smallest available */
if (req->Size == 0)
req->Size = s->map_size;
- align = (((s->features & SS_CAP_MEM_ALIGN) ||
- (req->Attributes & WIN_STRICT_ALIGN)) ?
- req->Size : s->map_size);
+ align = (s->features & SS_CAP_MEM_ALIGN) ? req->Size : s->map_size;
if (req->Size & (s->map_size-1)) {
dev_dbg(&s->dev, "invalid map size\n");
return -EINVAL;
@@ -805,20 +805,21 @@ int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_ha
align = 0;
/* Allocate system memory window */
+ mutex_lock(&s->ops_mutex);
for (w = 0; w < MAX_WIN; w++)
if (!(s->state & SOCKET_WIN_REQ(w)))
break;
if (w == MAX_WIN) {
dev_dbg(&s->dev, "all windows are used already\n");
+ mutex_unlock(&s->ops_mutex);
return -EINVAL;
}
- mutex_lock(&s->ops_mutex);
win = &s->win[w];
if (!(s->features & SS_CAP_STATIC_MAP)) {
win->res = pcmcia_find_mem_region(req->Base, req->Size, align,
- (req->Attributes & WIN_MAP_BELOW_1MB), s);
+ 0, s);
if (!win->res) {
dev_dbg(&s->dev, "allocating mem region failed\n");
mutex_unlock(&s->ops_mutex);
@@ -829,16 +830,8 @@ int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_ha
/* Configure the socket controller */
win->map = w+1;
- win->flags = 0;
+ win->flags = req->Attributes;
win->speed = req->AccessSpeed;
- if (req->Attributes & WIN_MEMORY_TYPE)
- win->flags |= MAP_ATTRIB;
- if (req->Attributes & WIN_ENABLE)
- win->flags |= MAP_ACTIVE;
- if (req->Attributes & WIN_DATA_WIDTH_16)
- win->flags |= MAP_16BIT;
- if (req->Attributes & WIN_USE_WAIT)
- win->flags |= MAP_USE_WAIT;
win->card_start = 0;
if (s->ops->set_mem_map(s, win) != 0) {
@@ -854,8 +847,16 @@ int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_ha
else
req->Base = win->res->start;
+ /* convert to new-style resources */
+ res = p_dev->resource[w + MAX_IO_WIN];
+ res->start = req->Base;
+ res->end = req->Base + req->Size - 1;
+ res->flags &= ~IORESOURCE_BITS;
+ res->flags |= (req->Attributes & WIN_FLAGS_MAP) | (win->map << 2);
+ dev_dbg(&s->dev, "request_window results in %pR\n", res);
+
mutex_unlock(&s->ops_mutex);
- *wh = w + 1;
+ *wh = res;
return 0;
} /* pcmcia_request_window */
@@ -863,13 +864,18 @@ EXPORT_SYMBOL(pcmcia_request_window);
void pcmcia_disable_device(struct pcmcia_device *p_dev)
{
+ int i;
+ for (i = 0; i < MAX_WIN; i++) {
+ struct resource *res = p_dev->resource[MAX_IO_WIN + i];
+ if (res->flags & WIN_FLAGS_REQ)
+ pcmcia_release_window(p_dev, res);
+ }
+
pcmcia_release_configuration(p_dev);
pcmcia_release_io(p_dev);
if (p_dev->_irq) {
free_irq(p_dev->irq, p_dev->priv);
p_dev->_irq = 0;
}
- if (p_dev->win)
- pcmcia_release_window(p_dev, p_dev->win);
}
EXPORT_SYMBOL(pcmcia_disable_device);
diff --git a/include/pcmcia/cs.h b/include/pcmcia/cs.h
index e4faf44..68d8bde 100644
--- a/include/pcmcia/cs.h
+++ b/include/pcmcia/cs.h
@@ -77,26 +77,19 @@ typedef struct win_req_t {
} win_req_t;
/* Attributes for RequestWindow */
-#define WIN_ADDR_SPACE 0x0001
-#define WIN_ADDR_SPACE_MEM 0x0000
-#define WIN_ADDR_SPACE_IO 0x0001
-#define WIN_MEMORY_TYPE 0x0002
-#define WIN_MEMORY_TYPE_CM 0x0000
-#define WIN_MEMORY_TYPE_AM 0x0002
-#define WIN_ENABLE 0x0004
-#define WIN_DATA_WIDTH 0x0018
-#define WIN_DATA_WIDTH_8 0x0000
-#define WIN_DATA_WIDTH_16 0x0008
-#define WIN_DATA_WIDTH_32 0x0010
-#define WIN_PAGED 0x0020
-#define WIN_SHARED 0x0040
-#define WIN_FIRST_SHARED 0x0080
-#define WIN_USE_WAIT 0x0100
-#define WIN_STRICT_ALIGN 0x0200
-#define WIN_MAP_BELOW_1MB 0x0400
-#define WIN_PREFETCH 0x0800
-#define WIN_CACHEABLE 0x1000
-#define WIN_BAR_MASK 0xe000
-#define WIN_BAR_SHIFT 13
+#define WIN_MEMORY_TYPE_CM 0x00 /* default */
+#define WIN_MEMORY_TYPE_AM 0x20 /* MAP_ATTRIB */
+#define WIN_DATA_WIDTH_8 0x00 /* default */
+#define WIN_DATA_WIDTH_16 0x02 /* MAP_16BIT */
+#define WIN_ENABLE 0x01 /* MAP_ACTIVE */
+#define WIN_USE_WAIT 0x40 /* MAP_USE_WAIT */
+
+#define WIN_FLAGS_MAP 0x63 /* MAP_ATTRIB | MAP_16BIT | MAP_ACTIVE |
+ MAP_USE_WAIT */
+#define WIN_FLAGS_REQ 0x1c /* mapping to socket->win[i]:
+ 0x04 -> 0
+ 0x08 -> 1
+ 0x0c -> 2
+ 0x10 -> 3 */
#endif /* _LINUX_CS_H */
diff --git a/include/pcmcia/ds.h b/include/pcmcia/ds.h
index a2bf3a7..70c58ed 100644
--- a/include/pcmcia/ds.h
+++ b/include/pcmcia/ds.h
@@ -36,7 +36,7 @@ struct pcmcia_device;
struct config_t;
struct net_device;
-typedef unsigned long window_handle_t;
+typedef struct resource *window_handle_t;
/* dynamic device IDs for PCMCIA device drivers. See
* Documentation/pcmcia/driver.txt for details.
@@ -63,6 +63,17 @@ struct pcmcia_driver {
int pcmcia_register_driver(struct pcmcia_driver *driver);
void pcmcia_unregister_driver(struct pcmcia_driver *driver);
+/* for struct resource * array embedded in struct pcmcia_device */
+enum {
+ PCMCIA_IOPORT_0,
+ PCMCIA_IOPORT_1,
+ PCMCIA_IOMEM_0,
+ PCMCIA_IOMEM_1,
+ PCMCIA_IOMEM_2,
+ PCMCIA_IOMEM_3,
+ PCMCIA_NUM_RESOURCES,
+};
+
struct pcmcia_device {
/* the socket and the device_no [for multifunction devices]
uniquely define a pcmcia_device */
@@ -85,7 +96,7 @@ struct pcmcia_device {
/* device setup */
unsigned int irq;
- struct resource *resource[MAX_IO_WIN];
+ struct resource *resource[PCMCIA_NUM_RESOURCES];
unsigned int io_lines; /* number of I/O lines */
--
1.7.0.4
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