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path: root/drivers/pcmcia/pcmcia_resource.c
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Diffstat (limited to 'drivers/pcmcia/pcmcia_resource.c')
-rw-r--r--drivers/pcmcia/pcmcia_resource.c482
1 files changed, 299 insertions, 183 deletions
diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c
index d919e96..a8bf8c1 100644
--- a/drivers/pcmcia/pcmcia_resource.c
+++ b/drivers/pcmcia/pcmcia_resource.c
@@ -20,6 +20,7 @@
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/device.h>
+#include <linux/netdevice.h>
#include <pcmcia/cs_types.h>
#include <pcmcia/ss.h>
@@ -43,21 +44,6 @@ static u8 pcmcia_used_irq[NR_IRQS];
#endif
-#ifdef CONFIG_PCMCIA_DEBUG
-extern int ds_pc_debug;
-
-#define ds_dbg(skt, lvl, fmt, arg...) do { \
- if (ds_pc_debug >= lvl) \
- dev_printk(KERN_DEBUG, &skt->dev, \
- "pcmcia_resource: " fmt, \
- ## arg); \
-} while (0)
-#else
-#define ds_dbg(skt, lvl, fmt, arg...) do { } while (0)
-#endif
-
-
-
/** alloc_io_space
*
* Special stuff for managing IO windows, because they are scarce
@@ -72,14 +58,14 @@ static int alloc_io_space(struct pcmcia_socket *s, u_int attr,
align = (*base) ? (lines ? 1<<lines : 0) : 1;
if (align && (align < num)) {
if (*base) {
- ds_dbg(s, 0, "odd IO request: num %#x align %#x\n",
+ dev_dbg(&s->dev, "odd IO request: num %#x align %#x\n",
num, align);
align = 0;
} else
while (align && (align < num)) align <<= 1;
}
if (*base & ~(align-1)) {
- ds_dbg(s, 0, "odd IO request: base %#x align %#x\n",
+ dev_dbg(&s->dev, "odd IO request: base %#x align %#x\n",
*base, align);
align = 0;
}
@@ -173,8 +159,10 @@ int pcmcia_access_configuration_register(struct pcmcia_device *p_dev,
s = p_dev->socket;
c = p_dev->function_config;
- if (!(c->state & CONFIG_LOCKED))
+ if (!(c->state & CONFIG_LOCKED)) {
+ dev_dbg(&s->dev, "Configuration isnt't locked\n");
return -EACCES;
+ }
addr = (c->ConfigBase + reg->Offset) >> 1;
@@ -188,6 +176,7 @@ int pcmcia_access_configuration_register(struct pcmcia_device *p_dev,
pcmcia_write_cis_mem(s, 1, addr, 1, &val);
break;
default:
+ dev_dbg(&s->dev, "Invalid conf register request\n");
return -EINVAL;
break;
}
@@ -196,68 +185,21 @@ int pcmcia_access_configuration_register(struct pcmcia_device *p_dev,
EXPORT_SYMBOL(pcmcia_access_configuration_register);
-/** pcmcia_get_window
- */
-int pcmcia_get_window(struct pcmcia_socket *s, window_handle_t *handle,
- int idx, win_req_t *req)
-{
- window_t *win;
- int w;
-
- if (!s || !(s->state & SOCKET_PRESENT))
- return -ENODEV;
- for (w = idx; w < MAX_WIN; w++)
- if (s->state & SOCKET_WIN_REQ(w))
- break;
- if (w == MAX_WIN)
- return -EINVAL;
- win = &s->win[w];
- req->Base = win->ctl.res->start;
- req->Size = win->ctl.res->end - win->ctl.res->start + 1;
- req->AccessSpeed = win->ctl.speed;
- req->Attributes = 0;
- if (win->ctl.flags & MAP_ATTRIB)
- req->Attributes |= WIN_MEMORY_TYPE_AM;
- if (win->ctl.flags & MAP_ACTIVE)
- req->Attributes |= WIN_ENABLE;
- if (win->ctl.flags & MAP_16BIT)
- req->Attributes |= WIN_DATA_WIDTH_16;
- if (win->ctl.flags & MAP_USE_WAIT)
- req->Attributes |= WIN_USE_WAIT;
- *handle = win;
- return 0;
-} /* pcmcia_get_window */
-EXPORT_SYMBOL(pcmcia_get_window);
-
-
-/** pcmcia_get_mem_page
- *
- * Change the card address of an already open memory window.
- */
-int pcmcia_get_mem_page(window_handle_t win, memreq_t *req)
+int pcmcia_map_mem_page(struct pcmcia_device *p_dev, window_handle_t wh,
+ memreq_t *req)
{
- if ((win == NULL) || (win->magic != WINDOW_MAGIC))
- return -EINVAL;
- req->Page = 0;
- req->CardOffset = win->ctl.card_start;
- return 0;
-} /* pcmcia_get_mem_page */
-EXPORT_SYMBOL(pcmcia_get_mem_page);
-
+ struct pcmcia_socket *s = p_dev->socket;
-int pcmcia_map_mem_page(window_handle_t win, memreq_t *req)
-{
- struct pcmcia_socket *s;
- if ((win == NULL) || (win->magic != WINDOW_MAGIC))
+ wh--;
+ if (wh >= MAX_WIN)
return -EINVAL;
- s = win->sock;
if (req->Page != 0) {
- ds_dbg(s, 0, "failure: requested page is zero\n");
+ dev_dbg(&s->dev, "failure: requested page is zero\n");
return -EINVAL;
}
- win->ctl.card_start = req->CardOffset;
- if (s->ops->set_mem_map(s, &win->ctl) != 0) {
- ds_dbg(s, 0, "failed to set_mem_map\n");
+ s->win[wh].card_start = req->CardOffset;
+ if (s->ops->set_mem_map(s, &s->win[wh]) != 0) {
+ dev_dbg(&s->dev, "failed to set_mem_map\n");
return -EIO;
}
return 0;
@@ -278,10 +220,14 @@ int pcmcia_modify_configuration(struct pcmcia_device *p_dev,
s = p_dev->socket;
c = p_dev->function_config;
- if (!(s->state & SOCKET_PRESENT))
+ if (!(s->state & SOCKET_PRESENT)) {
+ dev_dbg(&s->dev, "No card present\n");
return -ENODEV;
- if (!(c->state & CONFIG_LOCKED))
+ }
+ if (!(c->state & CONFIG_LOCKED)) {
+ dev_dbg(&s->dev, "Configuration isnt't locked\n");
return -EACCES;
+ }
if (mod->Attributes & CONF_IRQ_CHANGE_VALID) {
if (mod->Attributes & CONF_ENABLE_IRQ) {
@@ -295,7 +241,7 @@ int pcmcia_modify_configuration(struct pcmcia_device *p_dev,
}
if (mod->Attributes & CONF_VCC_CHANGE_VALID) {
- ds_dbg(s, 0, "changing Vcc is not allowed at this time\n");
+ dev_dbg(&s->dev, "changing Vcc is not allowed at this time\n");
return -EINVAL;
}
@@ -303,7 +249,7 @@ int pcmcia_modify_configuration(struct pcmcia_device *p_dev,
if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) &&
(mod->Attributes & CONF_VPP2_CHANGE_VALID)) {
if (mod->Vpp1 != mod->Vpp2) {
- ds_dbg(s, 0, "Vpp1 and Vpp2 must be the same\n");
+ dev_dbg(&s->dev, "Vpp1 and Vpp2 must be the same\n");
return -EINVAL;
}
s->socket.Vpp = mod->Vpp1;
@@ -314,7 +260,7 @@ int pcmcia_modify_configuration(struct pcmcia_device *p_dev,
}
} else if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) ||
(mod->Attributes & CONF_VPP2_CHANGE_VALID)) {
- ds_dbg(s, 0, "changing Vcc is not allowed at this time\n");
+ dev_dbg(&s->dev, "changing Vcc is not allowed at this time\n");
return -EINVAL;
}
@@ -425,11 +371,11 @@ static int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req)
if (c->state & CONFIG_LOCKED)
return -EACCES;
if (c->irq.Attributes != req->Attributes) {
- ds_dbg(s, 0, "IRQ attributes must match assigned ones\n");
+ dev_dbg(&s->dev, "IRQ attributes must match assigned ones\n");
return -EINVAL;
}
if (s->irq.AssignedIRQ != req->AssignedIRQ) {
- ds_dbg(s, 0, "IRQ must match assigned one\n");
+ dev_dbg(&s->dev, "IRQ must match assigned one\n");
return -EINVAL;
}
if (--s->irq.Config == 0) {
@@ -437,8 +383,8 @@ static int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req)
s->irq.AssignedIRQ = 0;
}
- if (req->Attributes & IRQ_HANDLE_PRESENT) {
- free_irq(req->AssignedIRQ, req->Instance);
+ if (req->Handler) {
+ free_irq(req->AssignedIRQ, p_dev->priv);
}
#ifdef CONFIG_PCMCIA_PROBE
@@ -449,30 +395,34 @@ static int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req)
} /* pcmcia_release_irq */
-int pcmcia_release_window(window_handle_t win)
+int pcmcia_release_window(struct pcmcia_device *p_dev, window_handle_t wh)
{
- struct pcmcia_socket *s;
+ struct pcmcia_socket *s = p_dev->socket;
+ pccard_mem_map *win;
- if ((win == NULL) || (win->magic != WINDOW_MAGIC))
+ wh--;
+ if (wh >= MAX_WIN)
return -EINVAL;
- s = win->sock;
- if (!(win->handle->_win & CLIENT_WIN_REQ(win->index)))
+
+ win = &s->win[wh];
+
+ if (!(p_dev->_win & CLIENT_WIN_REQ(wh))) {
+ dev_dbg(&s->dev, "not releasing unknown window\n");
return -EINVAL;
+ }
/* Shut down memory window */
- win->ctl.flags &= ~MAP_ACTIVE;
- s->ops->set_mem_map(s, &win->ctl);
- s->state &= ~SOCKET_WIN_REQ(win->index);
+ win->flags &= ~MAP_ACTIVE;
+ s->ops->set_mem_map(s, win);
+ s->state &= ~SOCKET_WIN_REQ(wh);
/* Release system memory */
- if (win->ctl.res) {
- release_resource(win->ctl.res);
- kfree(win->ctl.res);
- win->ctl.res = NULL;
+ if (win->res) {
+ release_resource(win->res);
+ kfree(win->res);
+ win->res = NULL;
}
- win->handle->_win &= ~CLIENT_WIN_REQ(win->index);
-
- win->magic = 0;
+ p_dev->_win &= ~CLIENT_WIN_REQ(wh);
return 0;
} /* pcmcia_release_window */
@@ -492,12 +442,14 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev,
return -ENODEV;
if (req->IntType & INT_CARDBUS) {
- ds_dbg(p_dev->socket, 0, "IntType may not be INT_CARDBUS\n");
+ dev_dbg(&s->dev, "IntType may not be INT_CARDBUS\n");
return -EINVAL;
}
c = p_dev->function_config;
- if (c->state & CONFIG_LOCKED)
+ if (c->state & CONFIG_LOCKED) {
+ dev_dbg(&s->dev, "Configuration is locked\n");
return -EACCES;
+ }
/* Do power control. We don't allow changes in Vcc. */
s->socket.Vpp = req->Vpp;
@@ -609,40 +561,44 @@ int pcmcia_request_io(struct pcmcia_device *p_dev, io_req_t *req)
struct pcmcia_socket *s = p_dev->socket;
config_t *c;
- if (!(s->state & SOCKET_PRESENT))
+ if (!(s->state & SOCKET_PRESENT)) {
+ dev_dbg(&s->dev, "No card present\n");
return -ENODEV;
+ }
if (!req)
return -EINVAL;
c = p_dev->function_config;
- if (c->state & CONFIG_LOCKED)
+ if (c->state & CONFIG_LOCKED) {
+ dev_dbg(&s->dev, "Configuration is locked\n");
return -EACCES;
+ }
if (c->state & CONFIG_IO_REQ) {
- ds_dbg(s, 0, "IO already configured\n");
+ dev_dbg(&s->dev, "IO already configured\n");
return -EBUSY;
}
if (req->Attributes1 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS)) {
- ds_dbg(s, 0, "bad attribute setting for IO region 1\n");
+ dev_dbg(&s->dev, "bad attribute setting for IO region 1\n");
return -EINVAL;
}
if ((req->NumPorts2 > 0) &&
(req->Attributes2 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS))) {
- ds_dbg(s, 0, "bad attribute setting for IO region 2\n");
+ dev_dbg(&s->dev, "bad attribute setting for IO region 2\n");
return -EINVAL;
}
- ds_dbg(s, 1, "trying to allocate resource 1\n");
+ dev_dbg(&s->dev, "trying to allocate resource 1\n");
if (alloc_io_space(s, req->Attributes1, &req->BasePort1,
req->NumPorts1, req->IOAddrLines)) {
- ds_dbg(s, 0, "allocation of resource 1 failed\n");
+ dev_dbg(&s->dev, "allocation of resource 1 failed\n");
return -EBUSY;
}
if (req->NumPorts2) {
- ds_dbg(s, 1, "trying to allocate resource 2\n");
+ dev_dbg(&s->dev, "trying to allocate resource 2\n");
if (alloc_io_space(s, req->Attributes2, &req->BasePort2,
req->NumPorts2, req->IOAddrLines)) {
- ds_dbg(s, 0, "allocation of resource 2 failed\n");
+ dev_dbg(&s->dev, "allocation of resource 2 failed\n");
release_io_space(s, req->BasePort1, req->NumPorts1);
return -EBUSY;
}
@@ -680,13 +636,17 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
int ret = -EINVAL, irq = 0;
int type;
- if (!(s->state & SOCKET_PRESENT))
+ if (!(s->state & SOCKET_PRESENT)) {
+ dev_dbg(&s->dev, "No card present\n");
return -ENODEV;
+ }
c = p_dev->function_config;
- if (c->state & CONFIG_LOCKED)
+ if (c->state & CONFIG_LOCKED) {
+ dev_dbg(&s->dev, "Configuration is locked\n");
return -EACCES;
+ }
if (c->state & CONFIG_IRQ_REQ) {
- ds_dbg(s, 0, "IRQ already configured\n");
+ dev_dbg(&s->dev, "IRQ already configured\n");
return -EBUSY;
}
@@ -704,7 +664,7 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
/* if the underlying IRQ infrastructure allows for it, only allocate
* the IRQ, but do not enable it
*/
- if (!(req->Attributes & IRQ_HANDLE_PRESENT))
+ if (!(req->Handler))
type |= IRQ_NOAUTOEN;
#endif /* IRQ_NOAUTOEN */
@@ -714,7 +674,7 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
} else {
int try;
u32 mask = s->irq_mask;
- void *data = &p_dev->dev.driver; /* something unique to this device */
+ void *data = p_dev; /* something unique to this device */
for (try = 0; try < 64; try++) {
irq = try % 32;
@@ -731,12 +691,12 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
* registering a dummy handle works, i.e. if the IRQ isn't
* marked as used by the kernel resource management core */
ret = request_irq(irq,
- (req->Attributes & IRQ_HANDLE_PRESENT) ? req->Handler : test_action,
+ (req->Handler) ? req->Handler : test_action,
type,
p_dev->devname,
- (req->Attributes & IRQ_HANDLE_PRESENT) ? req->Instance : data);
+ (req->Handler) ? p_dev->priv : data);
if (!ret) {
- if (!(req->Attributes & IRQ_HANDLE_PRESENT))
+ if (!req->Handler)
free_irq(irq, data);
break;
}
@@ -745,17 +705,22 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
#endif
/* only assign PCI irq if no IRQ already assigned */
if (ret && !s->irq.AssignedIRQ) {
- if (!s->pci_irq)
+ if (!s->pci_irq) {
+ dev_printk(KERN_INFO, &s->dev, "no IRQ found\n");
return ret;
+ }
type = IRQF_SHARED;
irq = s->pci_irq;
}
- if (ret && (req->Attributes & IRQ_HANDLE_PRESENT)) {
+ if (ret && req->Handler) {
ret = request_irq(irq, req->Handler, type,
- p_dev->devname, req->Instance);
- if (ret)
+ p_dev->devname, p_dev->priv);
+ if (ret) {
+ dev_printk(KERN_INFO, &s->dev,
+ "request_irq() failed\n");
return ret;
+ }
}
/* Make sure the fact the request type was overridden is passed back */
@@ -787,17 +752,19 @@ EXPORT_SYMBOL(pcmcia_request_irq);
* Request_window() establishes a mapping between card memory space
* and system memory space.
*/
-int pcmcia_request_window(struct pcmcia_device **p_dev, win_req_t *req, window_handle_t *wh)
+int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_handle_t *wh)
{
- struct pcmcia_socket *s = (*p_dev)->socket;
- window_t *win;
+ struct pcmcia_socket *s = p_dev->socket;
+ pccard_mem_map *win;
u_long align;
int w;
- if (!(s->state & SOCKET_PRESENT))
+ if (!(s->state & SOCKET_PRESENT)) {
+ dev_dbg(&s->dev, "No card present\n");
return -ENODEV;
+ }
if (req->Attributes & (WIN_PAGED | WIN_SHARED)) {
- ds_dbg(s, 0, "bad attribute setting for iomem region\n");
+ dev_dbg(&s->dev, "bad attribute setting for iomem region\n");
return -EINVAL;
}
@@ -808,12 +775,12 @@ int pcmcia_request_window(struct pcmcia_device **p_dev, win_req_t *req, window_h
(req->Attributes & WIN_STRICT_ALIGN)) ?
req->Size : s->map_size);
if (req->Size & (s->map_size-1)) {
- ds_dbg(s, 0, "invalid map size\n");
+ dev_dbg(&s->dev, "invalid map size\n");
return -EINVAL;
}
if ((req->Base && (s->features & SS_CAP_STATIC_MAP)) ||
(req->Base & (align-1))) {
- ds_dbg(s, 0, "invalid base address\n");
+ dev_dbg(&s->dev, "invalid base address\n");
return -EINVAL;
}
if (req->Base)
@@ -823,52 +790,48 @@ int pcmcia_request_window(struct pcmcia_device **p_dev, win_req_t *req, window_h
for (w = 0; w < MAX_WIN; w++)
if (!(s->state & SOCKET_WIN_REQ(w))) break;
if (w == MAX_WIN) {
- ds_dbg(s, 0, "all windows are used already\n");
+ dev_dbg(&s->dev, "all windows are used already\n");
return -EINVAL;
}
win = &s->win[w];
- win->magic = WINDOW_MAGIC;
- win->index = w;
- win->handle = *p_dev;
- win->sock = s;
if (!(s->features & SS_CAP_STATIC_MAP)) {
- win->ctl.res = pcmcia_find_mem_region(req->Base, req->Size, align,
+ win->res = pcmcia_find_mem_region(req->Base, req->Size, align,
(req->Attributes & WIN_MAP_BELOW_1MB), s);
- if (!win->ctl.res) {
- ds_dbg(s, 0, "allocating mem region failed\n");
+ if (!win->res) {
+ dev_dbg(&s->dev, "allocating mem region failed\n");
return -EINVAL;
}
}
- (*p_dev)->_win |= CLIENT_WIN_REQ(w);
+ p_dev->_win |= CLIENT_WIN_REQ(w);
/* Configure the socket controller */
- win->ctl.map = w+1;
- win->ctl.flags = 0;
- win->ctl.speed = req->AccessSpeed;
+ win->map = w+1;
+ win->flags = 0;
+ win->speed = req->AccessSpeed;
if (req->Attributes & WIN_MEMORY_TYPE)
- win->ctl.flags |= MAP_ATTRIB;
+ win->flags |= MAP_ATTRIB;
if (req->Attributes & WIN_ENABLE)
- win->ctl.flags |= MAP_ACTIVE;
+ win->flags |= MAP_ACTIVE;
if (req->Attributes & WIN_DATA_WIDTH_16)
- win->ctl.flags |= MAP_16BIT;
+ win->flags |= MAP_16BIT;
if (req->Attributes & WIN_USE_WAIT)
- win->ctl.flags |= MAP_USE_WAIT;
- win->ctl.card_start = 0;
- if (s->ops->set_mem_map(s, &win->ctl) != 0) {
- ds_dbg(s, 0, "failed to set memory mapping\n");
+ win->flags |= MAP_USE_WAIT;
+ win->card_start = 0;
+ if (s->ops->set_mem_map(s, win) != 0) {
+ dev_dbg(&s->dev, "failed to set memory mapping\n");
return -EIO;
}
s->state |= SOCKET_WIN_REQ(w);
/* Return window handle */
if (s->features & SS_CAP_STATIC_MAP) {
- req->Base = win->ctl.static_start;
+ req->Base = win->static_start;
} else {
- req->Base = win->ctl.res->start;
+ req->Base = win->res->start;
}
- *wh = win;
+ *wh = w + 1;
return 0;
} /* pcmcia_request_window */
@@ -879,19 +842,46 @@ void pcmcia_disable_device(struct pcmcia_device *p_dev) {
pcmcia_release_io(p_dev, &p_dev->io);
pcmcia_release_irq(p_dev, &p_dev->irq);
if (p_dev->win)
- pcmcia_release_window(p_dev->win);
+ pcmcia_release_window(p_dev, p_dev->win);
}
EXPORT_SYMBOL(pcmcia_disable_device);
struct pcmcia_cfg_mem {
- tuple_t tuple;
+ struct pcmcia_device *p_dev;
+ void *priv_data;
+ int (*conf_check) (struct pcmcia_device *p_dev,
+ cistpl_cftable_entry_t *cfg,
+ cistpl_cftable_entry_t *dflt,
+ unsigned int vcc,
+ void *priv_data);
cisparse_t parse;
- u8 buf[256];
cistpl_cftable_entry_t dflt;
};
/**
+ * pcmcia_do_loop_config() - internal helper for pcmcia_loop_config()
+ *
+ * pcmcia_do_loop_config() is the internal callback for the call from
+ * pcmcia_loop_config() to pccard_loop_tuple(). Data is transferred
+ * by a struct pcmcia_cfg_mem.
+ */
+static int pcmcia_do_loop_config(tuple_t *tuple, cisparse_t *parse, void *priv)
+{
+ cistpl_cftable_entry_t *cfg = &parse->cftable_entry;
+ struct pcmcia_cfg_mem *cfg_mem = priv;
+
+ /* default values */
+ cfg_mem->p_dev->conf.ConfigIndex = cfg->index;
+ if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
+ cfg_mem->dflt = *cfg;
+
+ return cfg_mem->conf_check(cfg_mem->p_dev, cfg, &cfg_mem->dflt,
+ cfg_mem->p_dev->socket->socket.Vcc,
+ cfg_mem->priv_data);
+}
+
+/**
* pcmcia_loop_config() - loop over configuration options
* @p_dev: the struct pcmcia_device which we need to loop for.
* @conf_check: function to call for each configuration option.
@@ -913,48 +903,174 @@ int pcmcia_loop_config(struct pcmcia_device *p_dev,
void *priv_data)
{
struct pcmcia_cfg_mem *cfg_mem;
-
- tuple_t *tuple;
int ret;
- unsigned int vcc;
cfg_mem = kzalloc(sizeof(struct pcmcia_cfg_mem), GFP_KERNEL);
if (cfg_mem == NULL)
return -ENOMEM;
- /* get the current Vcc setting */
- vcc = p_dev->socket->socket.Vcc;
+ cfg_mem->p_dev = p_dev;
+ cfg_mem->conf_check = conf_check;
+ cfg_mem->priv_data = priv_data;
- tuple = &cfg_mem->tuple;
- tuple->TupleData = cfg_mem->buf;
- tuple->TupleDataMax = 255;
- tuple->TupleOffset = 0;
- tuple->DesiredTuple = CISTPL_CFTABLE_ENTRY;
- tuple->Attributes = 0;
+ ret = pccard_loop_tuple(p_dev->socket, p_dev->func,
+ CISTPL_CFTABLE_ENTRY, &cfg_mem->parse,
+ cfg_mem, pcmcia_do_loop_config);
- ret = pcmcia_get_first_tuple(p_dev, tuple);
- while (!ret) {
- cistpl_cftable_entry_t *cfg = &cfg_mem->parse.cftable_entry;
+ kfree(cfg_mem);
+ return ret;
+}
+EXPORT_SYMBOL(pcmcia_loop_config);
+
+
+struct pcmcia_loop_mem {
+ struct pcmcia_device *p_dev;
+ void *priv_data;
+ int (*loop_tuple) (struct pcmcia_device *p_dev,
+ tuple_t *tuple,
+ void *priv_data);
+};
+
+/**
+ * pcmcia_do_loop_tuple() - internal helper for pcmcia_loop_config()
+ *
+ * pcmcia_do_loop_tuple() is the internal callback for the call from
+ * pcmcia_loop_tuple() to pccard_loop_tuple(). Data is transferred
+ * by a struct pcmcia_cfg_mem.
+ */
+static int pcmcia_do_loop_tuple(tuple_t *tuple, cisparse_t *parse, void *priv)
+{
+ struct pcmcia_loop_mem *loop = priv;
+
+ return loop->loop_tuple(loop->p_dev, tuple, loop->priv_data);
+};
+
+/**
+ * pcmcia_loop_tuple() - loop over tuples in the CIS
+ * @p_dev: the struct pcmcia_device which we need to loop for.
+ * @code: which CIS code shall we look for?
+ * @priv_data: private data to be passed to the loop_tuple function.
+ * @loop_tuple: function to call for each CIS entry of type @function. IT
+ * gets passed the raw tuple and @priv_data.
+ *
+ * pcmcia_loop_tuple() loops over all CIS entries of type @function, and
+ * calls the @loop_tuple function for each entry. If the call to @loop_tuple
+ * returns 0, the loop exits. Returns 0 on success or errorcode otherwise.
+ */
+int pcmcia_loop_tuple(struct pcmcia_device *p_dev, cisdata_t code,
+ int (*loop_tuple) (struct pcmcia_device *p_dev,
+ tuple_t *tuple,
+ void *priv_data),
+ void *priv_data)
+{
+ struct pcmcia_loop_mem loop = {
+ .p_dev = p_dev,
+ .loop_tuple = loop_tuple,
+ .priv_data = priv_data};
- if (pcmcia_get_tuple_data(p_dev, tuple))
- goto next_entry;
+ return pccard_loop_tuple(p_dev->socket, p_dev->func, code, NULL,
+ &loop, pcmcia_do_loop_tuple);
+};
+EXPORT_SYMBOL(pcmcia_loop_tuple);
- if (pcmcia_parse_tuple(tuple, &cfg_mem->parse))
- goto next_entry;
- /* default values */
- p_dev->conf.ConfigIndex = cfg->index;
- if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
- cfg_mem->dflt = *cfg;
+struct pcmcia_loop_get {
+ size_t len;
+ cisdata_t **buf;
+};
- ret = conf_check(p_dev, cfg, &cfg_mem->dflt, vcc, priv_data);
- if (!ret)
- break;
+/**
+ * pcmcia_do_get_tuple() - internal helper for pcmcia_get_tuple()
+ *
+ * pcmcia_do_get_tuple() is the internal callback for the call from
+ * pcmcia_get_tuple() to pcmcia_loop_tuple(). As we're only interested in
+ * the first tuple, return 0 unconditionally. Create a memory buffer large
+ * enough to hold the content of the tuple, and fill it with the tuple data.
+ * The caller is responsible to free the buffer.
+ */
+static int pcmcia_do_get_tuple(struct pcmcia_device *p_dev, tuple_t *tuple,
+ void *priv)
+{
+ struct pcmcia_loop_get *get = priv;
+
+ *get->buf = kzalloc(tuple->TupleDataLen, GFP_KERNEL);
+ if (*get->buf) {
+ get->len = tuple->TupleDataLen;
+ memcpy(*get->buf, tuple->TupleData, tuple->TupleDataLen);
+ } else
+ dev_dbg(&p_dev->dev, "do_get_tuple: out of memory\n");
+ return 0;
+};
-next_entry:
- ret = pcmcia_get_next_tuple(p_dev, tuple);
+/**
+ * pcmcia_get_tuple() - get first tuple from CIS
+ * @p_dev: the struct pcmcia_device which we need to loop for.
+ * @code: which CIS code shall we look for?
+ * @buf: pointer to store the buffer to.
+ *
+ * pcmcia_get_tuple() gets the content of the first CIS entry of type @code.
+ * It returns the buffer length (or zero). The caller is responsible to free
+ * the buffer passed in @buf.
+ */
+size_t pcmcia_get_tuple(struct pcmcia_device *p_dev, cisdata_t code,
+ unsigned char **buf)
+{
+ struct pcmcia_loop_get get = {
+ .len = 0,
+ .buf = buf,
+ };
+
+ *get.buf = NULL;
+ pcmcia_loop_tuple(p_dev, code, pcmcia_do_get_tuple, &get);
+
+ return get.len;
+};
+EXPORT_SYMBOL(pcmcia_get_tuple);
+
+
+/**
+ * pcmcia_do_get_mac() - internal helper for pcmcia_get_mac_from_cis()
+ *
+ * pcmcia_do_get_mac() is the internal callback for the call from
+ * pcmcia_get_mac_from_cis() to pcmcia_loop_tuple(). We check whether the
+ * tuple contains a proper LAN_NODE_ID of length 6, and copy the data
+ * to struct net_device->dev_addr[i].
+ */
+static int pcmcia_do_get_mac(struct pcmcia_device *p_dev, tuple_t *tuple,
+ void *priv)
+{
+ struct net_device *dev = priv;
+ int i;
+
+ if (tuple->TupleData[0] != CISTPL_FUNCE_LAN_NODE_ID)
+ return -EINVAL;
+ if (tuple->TupleDataLen < ETH_ALEN + 2) {
+ dev_warn(&p_dev->dev, "Invalid CIS tuple length for "
+ "LAN_NODE_ID\n");
+ return -EINVAL;
}
- return ret;
-}
-EXPORT_SYMBOL(pcmcia_loop_config);
+ if (tuple->TupleData[1] != ETH_ALEN) {
+ dev_warn(&p_dev->dev, "Invalid header for LAN_NODE_ID\n");
+ return -EINVAL;
+ }
+ for (i = 0; i < 6; i++)
+ dev->dev_addr[i] = tuple->TupleData[i+2];
+ return 0;
+};
+
+/**
+ * pcmcia_get_mac_from_cis() - read out MAC address from CISTPL_FUNCE
+ * @p_dev: the struct pcmcia_device for which we want the address.
+ * @dev: a properly prepared struct net_device to store the info to.
+ *
+ * pcmcia_get_mac_from_cis() reads out the hardware MAC address from
+ * CISTPL_FUNCE and stores it into struct net_device *dev->dev_addr which
+ * must be set up properly by the driver (see examples!).
+ */
+int pcmcia_get_mac_from_cis(struct pcmcia_device *p_dev, struct net_device *dev)
+{
+ return pcmcia_loop_tuple(p_dev, CISTPL_FUNCE, pcmcia_do_get_mac, dev);
+};
+EXPORT_SYMBOL(pcmcia_get_mac_from_cis);
+
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