kpriv/linux-hardened
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

pcmcia: use struct resource for PCMCIA devices, part 2

Browse source 
Use struct resource * also for iomem resources.

CC: linux-mtd@lists.infradead.org
CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
This commit is contained in:
Dominik Brodowski 2010-07-24 19:03:02 +02:00
parent b5cb259e7f
commit 0ca724d37a
10 changed files with 75 additions and 78 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

13
drivers/char/pcmcia/ipwireless/main.c
View file

@ -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);
}

1
drivers/mtd/maps/pcmciamtd.c
View file

@ -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);
}

1
drivers/net/pcmcia/ibmtr_cs.c
View file

@ -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);
}

3
drivers/net/wireless/b43/pcmcia.c
View file

@ -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;

8
drivers/net/wireless/ray_cs.c
View file

@ -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");

1
drivers/pcmcia/cs_internal.h
View file

@ -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;

6
drivers/pcmcia/ds.c
View file

@ -556,9 +556,15 @@ static struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s,
c->io[i].name = dev_name(&p_dev->dev);
c->io[i].flags = IORESOURCE_IO;
}
for (i = 0; i< MAX_WIN; i++) {
c->mem[i].name = dev_name(&p_dev->dev);
c->mem[i].flags = 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);

70
drivers/pcmcia/pcmcia_resource.c
View file

@ -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);

35
include/pcmcia/cs.h
View file

@ -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 */

15
include/pcmcia/ds.h
View file

@ -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 */