Commit 6e7b51a7 authored by Dominik Brodowski's avatar Dominik Brodowski

pcmcia: move cistpl.c into pcmcia module

As PCMCIA is the only real user of CIS access functions, include
cistpl.c in the PCMCIA module, not in the PCMCIA & CardBus core
module.
Tested-by: default avatarWolfram Sang <w.sang@pengutronix.de>
Signed-off-by: default avatarDominik Brodowski <linux@dominikbrodowski.net>
parent 4e8804ff
......@@ -2,11 +2,11 @@
# Makefile for the kernel pcmcia subsystem (c/o David Hinds)
#
pcmcia_core-y += cs.o cistpl.o rsrc_mgr.o socket_sysfs.o
pcmcia_core-y += cs.o rsrc_mgr.o socket_sysfs.o
pcmcia_core-$(CONFIG_CARDBUS) += cardbus.o
obj-$(CONFIG_PCCARD) += pcmcia_core.o
pcmcia-y += ds.o pcmcia_resource.o
pcmcia-y += ds.o pcmcia_resource.o cistpl.o
pcmcia-$(CONFIG_PCMCIA_IOCTL) += pcmcia_ioctl.o
obj-$(CONFIG_PCMCIA) += pcmcia.o
......
......@@ -76,7 +76,6 @@ void release_cis_mem(struct pcmcia_socket *s)
s->cis_virt = NULL;
}
}
EXPORT_SYMBOL(release_cis_mem);
/*
* Map the card memory at "card_offset" into virtual space.
......@@ -195,7 +194,6 @@ int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
*(u_char *)(ptr+2), *(u_char *)(ptr+3));
return 0;
}
EXPORT_SYMBOL(pcmcia_read_cis_mem);
void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
......@@ -254,7 +252,6 @@ void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
}
}
}
EXPORT_SYMBOL(pcmcia_write_cis_mem);
/*======================================================================
......@@ -335,7 +332,6 @@ void destroy_cis_cache(struct pcmcia_socket *s)
kfree(cis);
}
}
EXPORT_SYMBOL(destroy_cis_cache);
/*======================================================================
......@@ -374,7 +370,6 @@ int verify_cis_cache(struct pcmcia_socket *s)
kfree(buf);
return 0;
}
EXPORT_SYMBOL(verify_cis_cache);
/*======================================================================
......@@ -400,7 +395,6 @@ int pcmcia_replace_cis(struct pcmcia_socket *s,
memcpy(s->fake_cis, data, len);
return 0;
}
EXPORT_SYMBOL(pcmcia_replace_cis);
/*======================================================================
......@@ -446,7 +440,6 @@ int pccard_get_first_tuple(struct pcmcia_socket *s, unsigned int function, tuple
}
return pccard_get_next_tuple(s, function, tuple);
}
EXPORT_SYMBOL(pccard_get_first_tuple);
static int follow_link(struct pcmcia_socket *s, tuple_t *tuple)
{
......@@ -582,7 +575,6 @@ int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, tuple_
tuple->CISOffset = ofs + 2;
return 0;
}
EXPORT_SYMBOL(pccard_get_next_tuple);
/*====================================================================*/
......@@ -606,7 +598,6 @@ int pccard_get_tuple_data(struct pcmcia_socket *s, tuple_t *tuple)
_MIN(len, tuple->TupleDataMax), tuple->TupleData);
return 0;
}
EXPORT_SYMBOL(pccard_get_tuple_data);
/*======================================================================
......@@ -1379,7 +1370,6 @@ int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function, cisdata_t
kfree(buf);
return ret;
}
EXPORT_SYMBOL(pccard_read_tuple);
/**
......@@ -1439,7 +1429,6 @@ int pccard_loop_tuple(struct pcmcia_socket *s, unsigned int function,
kfree(buf);
return ret;
}
EXPORT_SYMBOL(pccard_loop_tuple);
/**
......@@ -1533,4 +1522,149 @@ int pccard_validate_cis(struct pcmcia_socket *s, unsigned int *info)
kfree(p);
return ret;
}
EXPORT_SYMBOL(pccard_validate_cis);
#define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev)
static ssize_t pccard_extract_cis(struct pcmcia_socket *s, char *buf,
loff_t off, size_t count)
{
tuple_t tuple;
int status, i;
loff_t pointer = 0;
ssize_t ret = 0;
u_char *tuplebuffer;
u_char *tempbuffer;
tuplebuffer = kmalloc(sizeof(u_char) * 256, GFP_KERNEL);
if (!tuplebuffer)
return -ENOMEM;
tempbuffer = kmalloc(sizeof(u_char) * 258, GFP_KERNEL);
if (!tempbuffer) {
ret = -ENOMEM;
goto free_tuple;
}
memset(&tuple, 0, sizeof(tuple_t));
tuple.Attributes = TUPLE_RETURN_LINK | TUPLE_RETURN_COMMON;
tuple.DesiredTuple = RETURN_FIRST_TUPLE;
tuple.TupleOffset = 0;
status = pccard_get_first_tuple(s, BIND_FN_ALL, &tuple);
while (!status) {
tuple.TupleData = tuplebuffer;
tuple.TupleDataMax = 255;
memset(tuplebuffer, 0, sizeof(u_char) * 255);
status = pccard_get_tuple_data(s, &tuple);
if (status)
break;
if (off < (pointer + 2 + tuple.TupleDataLen)) {
tempbuffer[0] = tuple.TupleCode & 0xff;
tempbuffer[1] = tuple.TupleLink & 0xff;
for (i = 0; i < tuple.TupleDataLen; i++)
tempbuffer[i + 2] = tuplebuffer[i] & 0xff;
for (i = 0; i < (2 + tuple.TupleDataLen); i++) {
if (((i + pointer) >= off) &&
(i + pointer) < (off + count)) {
buf[ret] = tempbuffer[i];
ret++;
}
}
}
pointer += 2 + tuple.TupleDataLen;
if (pointer >= (off + count))
break;
if (tuple.TupleCode == CISTPL_END)
break;
status = pccard_get_next_tuple(s, BIND_FN_ALL, &tuple);
}
kfree(tempbuffer);
free_tuple:
kfree(tuplebuffer);
return ret;
}
static ssize_t pccard_show_cis(struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
unsigned int size = 0x200;
if (off >= size)
count = 0;
else {
struct pcmcia_socket *s;
unsigned int chains;
if (off + count > size)
count = size - off;
s = to_socket(container_of(kobj, struct device, kobj));
if (!(s->state & SOCKET_PRESENT))
return -ENODEV;
if (pccard_validate_cis(s, &chains))
return -EIO;
if (!chains)
return -ENODATA;
count = pccard_extract_cis(s, buf, off, count);
}
return count;
}
static ssize_t pccard_store_cis(struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct pcmcia_socket *s;
int error;
s = to_socket(container_of(kobj, struct device, kobj));
if (off)
return -EINVAL;
if (count >= CISTPL_MAX_CIS_SIZE)
return -EINVAL;
if (!(s->state & SOCKET_PRESENT))
return -ENODEV;
error = pcmcia_replace_cis(s, buf, count);
if (error)
return -EIO;
mutex_lock(&s->skt_mutex);
if ((s->callback) && (s->state & SOCKET_PRESENT) &&
!(s->state & SOCKET_CARDBUS)) {
if (try_module_get(s->callback->owner)) {
s->callback->requery(s, 1);
module_put(s->callback->owner);
}
}
mutex_unlock(&s->skt_mutex);
return count;
}
struct bin_attribute pccard_cis_attr = {
.attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR },
.size = 0x200,
.read = pccard_show_cis,
.write = pccard_store_cis,
};
......@@ -92,9 +92,6 @@ struct pccard_resource_ops {
* Stuff internal to module "pcmcia_core":
*/
/* cistpl.c */
int verify_cis_cache(struct pcmcia_socket *s);
/* socket_sysfs.c */
extern int pccard_sysfs_add_socket(struct device *dev);
extern void pccard_sysfs_remove_socket(struct device *dev);
......@@ -102,8 +99,6 @@ extern void pccard_sysfs_remove_socket(struct device *dev);
/* cardbus.c */
int cb_alloc(struct pcmcia_socket *s);
void cb_free(struct pcmcia_socket *s);
int read_cb_mem(struct pcmcia_socket *s, int space, u_int addr, u_int len,
void *ptr);
......@@ -116,6 +111,7 @@ struct pcmcia_callback{
int (*event) (struct pcmcia_socket *s,
event_t event, int priority);
void (*requery) (struct pcmcia_socket *s, int new_cis);
int (*validate) (struct pcmcia_socket *s, unsigned int *i);
int (*suspend) (struct pcmcia_socket *s);
int (*resume) (struct pcmcia_socket *s);
};
......@@ -137,7 +133,26 @@ int pcmcia_insert_card(struct pcmcia_socket *skt);
struct pcmcia_socket *pcmcia_get_socket(struct pcmcia_socket *skt);
void pcmcia_put_socket(struct pcmcia_socket *skt);
/* rsrc_mgr.c */
int pcmcia_validate_mem(struct pcmcia_socket *s);
struct resource *pcmcia_find_mem_region(u_long base,
u_long num,
u_long align,
int low,
struct pcmcia_socket *s);
/*
* Stuff internal to module "pcmcia".
*/
/* ds.c */
extern struct bus_type pcmcia_bus_type;
/* pcmcia_resource.c */
extern int pcmcia_release_configuration(struct pcmcia_device *p_dev);
/* cistpl.c */
extern struct bin_attribute pccard_cis_attr;
int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr,
u_int addr, u_int len, void *ptr);
void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr,
......@@ -149,8 +164,8 @@ int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function,
int pcmcia_replace_cis(struct pcmcia_socket *s,
const u8 *data, const size_t len);
int pccard_validate_cis(struct pcmcia_socket *s, unsigned int *count);
int verify_cis_cache(struct pcmcia_socket *s);
/* loop over CIS entries */
int pccard_loop_tuple(struct pcmcia_socket *s, unsigned int function,
cisdata_t code, cisparse_t *parse, void *priv_data,
int (*loop_tuple) (tuple_t *tuple,
......@@ -166,23 +181,6 @@ int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function,
int pccard_get_tuple_data(struct pcmcia_socket *s, tuple_t *tuple);
/* rsrc_mgr.c */
int pcmcia_validate_mem(struct pcmcia_socket *s);
struct resource *pcmcia_find_mem_region(u_long base,
u_long num,
u_long align,
int low,
struct pcmcia_socket *s);
/*
* Stuff internal to module "pcmcia".
*/
/* ds.c */
extern struct bus_type pcmcia_bus_type;
/* pcmcia_resource.c */
extern int pcmcia_release_configuration(struct pcmcia_device *p_dev);
#ifdef CONFIG_PCMCIA_IOCTL
/* ds.c */
extern spinlock_t pcmcia_dev_list_lock;
......
......@@ -1313,6 +1313,7 @@ static struct pcmcia_callback pcmcia_bus_callback = {
.owner = THIS_MODULE,
.event = ds_event,
.requery = pcmcia_bus_rescan,
.validate = pccard_validate_cis,
.suspend = pcmcia_bus_suspend,
.resume = pcmcia_bus_resume,
};
......@@ -1336,6 +1337,13 @@ static int __devinit pcmcia_bus_add_socket(struct device *dev,
*/
msleep(250);
ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr);
if (ret) {
dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n");
pcmcia_put_socket(socket);
return ret;
}
#ifdef CONFIG_PCMCIA_IOCTL
init_waitqueue_head(&socket->queue);
#endif
......@@ -1371,6 +1379,8 @@ static void pcmcia_bus_remove_socket(struct device *dev,
release_cis_mem(socket);
mutex_unlock(&socket->skt_mutex);
sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr);
pcmcia_put_socket(socket);
return;
......
......@@ -277,7 +277,9 @@ static int readable(struct pcmcia_socket *s, struct resource *res,
s->cis_mem.res = res;
s->cis_virt = ioremap(res->start, s->map_size);
if (s->cis_virt) {
ret = pccard_validate_cis(s, count);
/* as we're only called from pcmcia.c, we're safe */
if (s->callback->validate)
ret = s->callback->validate(s, count);
/* invalidate mapping */
iounmap(s->cis_virt);
s->cis_virt = NULL;
......
......@@ -213,138 +213,6 @@ static ssize_t pccard_store_resource(struct device *dev,
}
static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource);
static ssize_t pccard_extract_cis(struct pcmcia_socket *s, char *buf, loff_t off, size_t count)
{
tuple_t tuple;
int status, i;
loff_t pointer = 0;
ssize_t ret = 0;
u_char *tuplebuffer;
u_char *tempbuffer;
tuplebuffer = kmalloc(sizeof(u_char) * 256, GFP_KERNEL);
if (!tuplebuffer)
return -ENOMEM;
tempbuffer = kmalloc(sizeof(u_char) * 258, GFP_KERNEL);
if (!tempbuffer) {
ret = -ENOMEM;
goto free_tuple;
}
memset(&tuple, 0, sizeof(tuple_t));
tuple.Attributes = TUPLE_RETURN_LINK | TUPLE_RETURN_COMMON;
tuple.DesiredTuple = RETURN_FIRST_TUPLE;
tuple.TupleOffset = 0;
status = pccard_get_first_tuple(s, BIND_FN_ALL, &tuple);
while (!status) {
tuple.TupleData = tuplebuffer;
tuple.TupleDataMax = 255;
memset(tuplebuffer, 0, sizeof(u_char) * 255);
status = pccard_get_tuple_data(s, &tuple);
if (status)
break;
if (off < (pointer + 2 + tuple.TupleDataLen)) {
tempbuffer[0] = tuple.TupleCode & 0xff;
tempbuffer[1] = tuple.TupleLink & 0xff;
for (i = 0; i < tuple.TupleDataLen; i++)
tempbuffer[i + 2] = tuplebuffer[i] & 0xff;
for (i = 0; i < (2 + tuple.TupleDataLen); i++) {
if (((i + pointer) >= off) &&
(i + pointer) < (off + count)) {
buf[ret] = tempbuffer[i];
ret++;
}
}
}
pointer += 2 + tuple.TupleDataLen;
if (pointer >= (off + count))
break;
if (tuple.TupleCode == CISTPL_END)
break;
status = pccard_get_next_tuple(s, BIND_FN_ALL, &tuple);
}
kfree(tempbuffer);
free_tuple:
kfree(tuplebuffer);
return ret;
}
static ssize_t pccard_show_cis(struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
unsigned int size = 0x200;
if (off >= size)
count = 0;
else {
struct pcmcia_socket *s;
unsigned int chains;
if (off + count > size)
count = size - off;
s = to_socket(container_of(kobj, struct device, kobj));
if (!(s->state & SOCKET_PRESENT))
return -ENODEV;
if (pccard_validate_cis(s, &chains))
return -EIO;
if (!chains)
return -ENODATA;
count = pccard_extract_cis(s, buf, off, count);
}
return count;
}
static ssize_t pccard_store_cis(struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct pcmcia_socket *s = to_socket(container_of(kobj, struct device, kobj));
int error;
if (off)
return -EINVAL;
if (count >= CISTPL_MAX_CIS_SIZE)
return -EINVAL;
if (!(s->state & SOCKET_PRESENT))
return -ENODEV;
error = pcmcia_replace_cis(s, buf, count);
if (error)
return -EIO;
mutex_lock(&s->skt_mutex);
if ((s->callback) && (s->state & SOCKET_PRESENT) &&
!(s->state & SOCKET_CARDBUS)) {
if (try_module_get(s->callback->owner)) {
s->callback->requery(s, 1);
module_put(s->callback->owner);
}
}
mutex_unlock(&s->skt_mutex);
return count;
}
static struct attribute *pccard_socket_attributes[] = {
&dev_attr_card_type.attr,
&dev_attr_card_voltage.attr,
......@@ -362,28 +230,12 @@ static const struct attribute_group socket_attrs = {
.attrs = pccard_socket_attributes,
};
static struct bin_attribute pccard_cis_attr = {
.attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR },
.size = 0x200,
.read = pccard_show_cis,
.write = pccard_store_cis,
};
int pccard_sysfs_add_socket(struct device *dev)
{
int ret = 0;
ret = sysfs_create_group(&dev->kobj, &socket_attrs);
if (!ret) {
ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr);
if (ret)
sysfs_remove_group(&dev->kobj, &socket_attrs);
}
return ret;
return sysfs_create_group(&dev->kobj, &socket_attrs);
}
void pccard_sysfs_remove_socket(struct device *dev)
{
sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr);
sysfs_remove_group(&dev->kobj, &socket_attrs);
}
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