Merge struct pcmcia_bus_socket into struct pcmcia_socket.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
spinlock_t pcmcia_dev_list_lock;
-static int unbind_request(struct pcmcia_bus_socket *s);
+static int unbind_request(struct pcmcia_socket *s);
/*====================================================================*/
/*======================================================================*/
-void pcmcia_release_bus_socket(struct kref *refcount)
-{
- struct pcmcia_bus_socket *s = container_of(refcount, struct pcmcia_bus_socket, refcount);
- pcmcia_put_socket(s->parent);
- kfree(s);
-}
-
-void pcmcia_put_bus_socket(struct pcmcia_bus_socket *s)
-{
- kref_put(&s->refcount, pcmcia_release_bus_socket);
-}
-
-struct pcmcia_bus_socket *pcmcia_get_bus_socket(struct pcmcia_bus_socket *s)
-{
- kref_get(&s->refcount);
- return (s);
-}
-
/**
* pcmcia_register_driver - register a PCMCIA driver with the bus core
*
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
ds_dbg(1, "releasing dev %p\n", p_dev);
- pcmcia_put_bus_socket(p_dev->socket->pcmcia);
+ pcmcia_put_socket(p_dev->socket);
kfree(p_dev);
}
*/
static DECLARE_MUTEX(device_add_lock);
-struct pcmcia_device * pcmcia_device_add(struct pcmcia_bus_socket *s, unsigned int function)
+struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function)
{
struct pcmcia_device *p_dev;
unsigned long flags;
- s = pcmcia_get_bus_socket(s);
+ s = pcmcia_get_socket(s);
if (!s)
return NULL;
goto err_put;
memset(p_dev, 0, sizeof(struct pcmcia_device));
- p_dev->socket = s->parent;
+ p_dev->socket = s;
p_dev->device_no = (s->device_count++);
p_dev->func = function;
p_dev->dev.bus = &pcmcia_bus_type;
- p_dev->dev.parent = s->parent->dev.dev;
+ p_dev->dev.parent = s->dev.dev;
p_dev->dev.release = pcmcia_release_dev;
sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no);
/* compat */
p_dev->client.client_magic = CLIENT_MAGIC;
- p_dev->client.Socket = s->parent;
+ p_dev->client.Socket = s;
p_dev->client.Function = function;
p_dev->client.state = CLIENT_UNBOUND;
s->device_count--;
err_put:
up(&device_add_lock);
- pcmcia_put_bus_socket(s);
+ pcmcia_put_socket(s);
return NULL;
}
/* this doesn't handle multifunction devices on one pcmcia function
* yet. */
for (i=0; i < no_funcs; i++)
- pcmcia_device_add(s->pcmcia, i);
+ pcmcia_device_add(s, i);
return (ret);
}
static void pcmcia_delayed_add_pseudo_device(void *data)
{
- struct pcmcia_bus_socket *s = data;
+ struct pcmcia_socket *s = data;
pcmcia_device_add(s, 0);
s->pcmcia_state.device_add_pending = 0;
}
-static inline void pcmcia_add_pseudo_device(struct pcmcia_bus_socket *s)
+static inline void pcmcia_add_pseudo_device(struct pcmcia_socket *s)
{
if (!s->pcmcia_state.device_add_pending) {
schedule_work(&s->device_add);
/* must be called with skt_sem held */
spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
- if (list_empty(&skt->pcmcia->devices_list))
+ if (list_empty(&skt->devices_list))
no_devices=1;
spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
* pseudo devices, and if not, add the second one.
*/
if (dev->device_no == 0)
- pcmcia_add_pseudo_device(dev->socket->pcmcia);
+ pcmcia_add_pseudo_device(dev->socket);
if (dev->device_no != did->device_no)
return 0;
static int send_event(struct pcmcia_socket *s, event_t event, int priority)
{
- int ret = 0;
struct send_event_data private;
- struct pcmcia_bus_socket *skt = pcmcia_get_bus_socket(s->pcmcia);
-
- if (!skt)
- return 0;
private.skt = s;
private.event = event;
private.priority = priority;
- ret = bus_for_each_dev(&pcmcia_bus_type, NULL, &private, send_event_callback);
-
- pcmcia_put_bus_socket(skt);
- return ret;
+ return bus_for_each_dev(&pcmcia_bus_type, NULL, &private, send_event_callback);
} /* send_event */
static int ds_event(struct pcmcia_socket *skt, event_t event, int priority)
{
- struct pcmcia_bus_socket *s = skt->pcmcia;
+ struct pcmcia_socket *s = pcmcia_get_socket(skt);
int ret = 0;
ds_dbg(1, "ds_event(0x%06x, %d, 0x%p)\n",
- event, priority, s);
+ event, priority, skt);
switch (event) {
case CS_EVENT_CARD_REMOVAL:
s->pcmcia_state.present = 0;
send_event(skt, event, priority);
- unbind_request(s);
- handle_event(s, event);
+ unbind_request(skt);
+ handle_event(skt, event);
break;
case CS_EVENT_CARD_INSERTION:
s->pcmcia_state.present = 1;
pcmcia_card_add(skt);
- handle_event(s, event);
+ handle_event(skt, event);
break;
case CS_EVENT_EJECTION_REQUEST:
break;
default:
- handle_event(s, event);
+ handle_event(skt, event);
send_event(skt, event, priority);
break;
}
+ pcmcia_put_socket(s);
+
return 0;
} /* ds_event */
int pcmcia_register_client(client_handle_t *handle, client_reg_t *req)
{
client_t *client = NULL;
- struct pcmcia_socket *s;
- struct pcmcia_bus_socket *skt = NULL;
+ struct pcmcia_socket *s = NULL;
struct pcmcia_device *p_dev = NULL;
/* Look for unbound client with matching dev_info */
if (s->state & SOCKET_CARDBUS)
continue;
- skt = s->pcmcia;
- if (!skt)
- continue;
- skt = pcmcia_get_bus_socket(skt);
- if (!skt)
+ s = pcmcia_get_socket(s);
+ if (!s)
continue;
spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
- list_for_each_entry(p_dev, &skt->devices_list, socket_device_list) {
+ list_for_each_entry(p_dev, &s->devices_list, socket_device_list) {
struct pcmcia_driver *p_drv;
p_dev = pcmcia_get_dev(p_dev);
if (!p_dev)
pcmcia_put_dev(p_dev);
}
spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
- pcmcia_put_bus_socket(skt);
+ pcmcia_put_socket(s);
}
found:
up_read(&pcmcia_socket_list_rwsem);
if (!p_dev || !client)
return -ENODEV;
- pcmcia_put_bus_socket(skt); /* safe, as we already hold a reference from bind_device */
+ pcmcia_put_socket(s); /* safe, as we already hold a reference from bind_device */
*handle = client;
client->state &= ~CLIENT_UNBOUND;
/* unbind _all_ devices attached to a given pcmcia_bus_socket. The
* drivers have been called with EVENT_CARD_REMOVAL before.
*/
-static int unbind_request(struct pcmcia_bus_socket *s)
+static int unbind_request(struct pcmcia_socket *s)
{
struct pcmcia_device *p_dev;
unsigned long flags;
- ds_dbg(2, "unbind_request(%d)\n", s->parent->sock);
+ ds_dbg(2, "unbind_request(%d)\n", s->sock);
s->device_count = 0;
static int __devinit pcmcia_bus_add_socket(struct class_device *class_dev)
{
struct pcmcia_socket *socket = class_get_devdata(class_dev);
- struct pcmcia_bus_socket *s;
int ret;
- s = kmalloc(sizeof(struct pcmcia_bus_socket), GFP_KERNEL);
- if(!s)
- return -ENOMEM;
- memset(s, 0, sizeof(struct pcmcia_bus_socket));
-
- /* get reference to parent socket */
- s->parent = pcmcia_get_socket(socket);
- if (!s->parent) {
+ socket = pcmcia_get_socket(socket);
+ if (!socket) {
printk(KERN_ERR "PCMCIA obtaining reference to socket %p failed\n", socket);
- kfree (s);
return -ENODEV;
}
- kref_init(&s->refcount);
-
/*
* Ugly. But we want to wait for the socket threads to have started up.
* We really should let the drivers themselves drive some of this..
msleep(250);
#ifdef CONFIG_PCMCIA_IOCTL
- init_waitqueue_head(&s->queue);
+ init_waitqueue_head(&socket->queue);
#endif
- INIT_LIST_HEAD(&s->devices_list);
- INIT_WORK(&s->device_add, pcmcia_delayed_add_pseudo_device, s);
-
- /* Set up hotline to Card Services */
- socket->pcmcia = s;
+ INIT_LIST_HEAD(&socket->devices_list);
+ INIT_WORK(&socket->device_add, pcmcia_delayed_add_pseudo_device, socket);
+ memset(&socket->pcmcia_state, 0, sizeof(u8));
+ socket->device_count = 0;
ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback);
if (ret) {
printk(KERN_ERR "PCMCIA registration PCCard core failed for socket %p\n", socket);
- pcmcia_put_bus_socket(s);
- socket->pcmcia = NULL;
+ pcmcia_put_socket(socket);
return (ret);
}
{
struct pcmcia_socket *socket = class_get_devdata(class_dev);
- if (!socket || !socket->pcmcia)
+ if (!socket)
return;
+ socket->pcmcia_state.dead = 1;
pccard_register_pcmcia(socket, NULL);
- socket->pcmcia->pcmcia_state.dead = 1;
- pcmcia_put_bus_socket(socket->pcmcia);
- socket->pcmcia = NULL;
+ pcmcia_put_socket(socket);
return;
}
/* ds_internal.h - internal header for 16-bit PCMCIA devices management */
-struct user_info_t;
-
-/* Socket state information */
-struct pcmcia_bus_socket {
- struct kref refcount;
- struct pcmcia_socket *parent;
-
- /* the PCMCIA devices connected to this socket (normally one, more
- * for multifunction devices: */
- struct list_head devices_list;
- u8 device_count; /* the number of devices, used
- * only internally and subject
- * to incorrectness and change */
-
- struct {
- u8 present:1,
- busy:1,
- dead:1,
- device_add_pending:1,
- reserved:4;
- } pcmcia_state;
-
- struct work_struct device_add;
-
-
-#ifdef CONFIG_PCMCIA_IOCTL
- struct user_info_t *user;
- wait_queue_head_t queue;
-#endif
-};
extern spinlock_t pcmcia_dev_list_lock;
-
extern struct bus_type pcmcia_bus_type;
-
extern struct pcmcia_device * pcmcia_get_dev(struct pcmcia_device *p_dev);
extern void pcmcia_put_dev(struct pcmcia_device *p_dev);
-struct pcmcia_bus_socket *pcmcia_get_bus_socket(struct pcmcia_bus_socket *s);
-void pcmcia_put_bus_socket(struct pcmcia_bus_socket *s);
-
-struct pcmcia_device * pcmcia_device_add(struct pcmcia_bus_socket *s, unsigned int function);
+struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function);
#ifdef CONFIG_PCMCIA_IOCTL
extern void __init pcmcia_setup_ioctl(void);
extern void __exit pcmcia_cleanup_ioctl(void);
-extern void handle_event(struct pcmcia_bus_socket *s, event_t event);
-extern int handle_request(struct pcmcia_bus_socket *s, event_t event);
+extern void handle_event(struct pcmcia_socket *s, event_t event);
+extern int handle_request(struct pcmcia_socket *s, event_t event);
#else
static inline void __init pcmcia_setup_ioctl(void) { return; }
static inline void __init pcmcia_cleanup_ioctl(void) { return; }
-static inline void handle_event(struct pcmcia_bus_socket *s, event_t event) { return; }
-static inline int handle_request(struct pcmcia_bus_socket *s, event_t event) { return CS_SUCCESS; }
+static inline void handle_event(struct pcmcia_socket *s, event_t event) { return; }
+static inline int handle_request(struct pcmcia_socket *s, event_t event) { return CS_SUCCESS; }
#endif
int event_head, event_tail;
event_t event[MAX_EVENTS];
struct user_info_t *next;
- struct pcmcia_bus_socket *socket;
+ struct pcmcia_socket *socket;
} user_info_t;
#endif
-static struct pcmcia_bus_socket * get_socket_info_by_nr(unsigned int nr)
-{
- struct pcmcia_socket * s = pcmcia_get_socket_by_nr(nr);
- if (s && s->pcmcia)
- return s->pcmcia;
- else
- return NULL;
-}
-
/* backwards-compatible accessing of driver --- by name! */
static struct pcmcia_driver * get_pcmcia_driver (dev_info_t *dev_info)
user->event[user->event_head] = event;
}
-void handle_event(struct pcmcia_bus_socket *s, event_t event)
+void handle_event(struct pcmcia_socket *s, event_t event)
{
user_info_t *user;
for (user = s->user; user; user = user->next)
======================================================================*/
-static int bind_request(struct pcmcia_bus_socket *s, bind_info_t *bind_info)
+static int bind_request(struct pcmcia_socket *s, bind_info_t *bind_info)
{
struct pcmcia_driver *p_drv;
struct pcmcia_device *p_dev;
int ret = 0;
unsigned long flags;
- s = pcmcia_get_bus_socket(s);
+ s = pcmcia_get_socket(s);
if (!s)
return -EINVAL;
- ds_dbg(2, "bind_request(%d, '%s')\n", s->parent->sock,
+ ds_dbg(2, "bind_request(%d, '%s')\n", s->sock,
(char *)bind_info->dev_info);
p_drv = get_pcmcia_driver(&bind_info->dev_info);
/*
* Prevent this racing with a card insertion.
*/
- down(&s->parent->skt_sem);
+ down(&s->skt_sem);
bus_rescan_devices(&pcmcia_bus_type);
- up(&s->parent->skt_sem);
+ up(&s->skt_sem);
/* check whether the driver indeed matched. I don't care if this
* is racy or not, because it can only happen on cardmgr access
err_put_driver:
put_driver(&p_drv->drv);
err_put:
- pcmcia_put_bus_socket(s);
+ pcmcia_put_socket(s);
return (ret);
} /* bind_request */
extern struct pci_bus *pcmcia_lookup_bus(struct pcmcia_socket *s);
-static int get_device_info(struct pcmcia_bus_socket *s, bind_info_t *bind_info, int first)
+static int get_device_info(struct pcmcia_socket *s, bind_info_t *bind_info, int first)
{
dev_node_t *node;
struct pcmcia_device *p_dev;
{
struct pci_bus *bus;
- bus = pcmcia_lookup_bus(s->parent);
+ bus = pcmcia_lookup_bus(s);
if (bus) {
struct list_head *list;
struct pci_dev *dev = NULL;
static int ds_open(struct inode *inode, struct file *file)
{
socket_t i = iminor(inode);
- struct pcmcia_bus_socket *s;
+ struct pcmcia_socket *s;
user_info_t *user;
ds_dbg(0, "ds_open(socket %d)\n", i);
- s = get_socket_info_by_nr(i);
+ s = pcmcia_get_socket_by_nr(i);
if (!s)
return -ENODEV;
- s = pcmcia_get_bus_socket(s);
+ s = pcmcia_get_socket(s);
if (!s)
return -ENODEV;
if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
if (s->pcmcia_state.busy) {
- pcmcia_put_bus_socket(s);
+ pcmcia_put_socket(s);
return -EBUSY;
}
else
user = kmalloc(sizeof(user_info_t), GFP_KERNEL);
if (!user) {
- pcmcia_put_bus_socket(s);
+ pcmcia_put_socket(s);
return -ENOMEM;
}
user->event_tail = user->event_head = 0;
static int ds_release(struct inode *inode, struct file *file)
{
- struct pcmcia_bus_socket *s;
+ struct pcmcia_socket *s;
user_info_t *user, **link;
ds_dbg(0, "ds_release(socket %d)\n", iminor(inode));
*link = user->next;
user->user_magic = 0;
kfree(user);
- pcmcia_put_bus_socket(s);
+ pcmcia_put_socket(s);
out:
return 0;
} /* ds_release */
static ssize_t ds_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
- struct pcmcia_bus_socket *s;
+ struct pcmcia_socket *s;
user_info_t *user;
int ret;
/* No kernel lock - fine */
static u_int ds_poll(struct file *file, poll_table *wait)
{
- struct pcmcia_bus_socket *s;
+ struct pcmcia_socket *s;
user_info_t *user;
ds_dbg(2, "ds_poll(socket %d)\n", iminor(file->f_dentry->d_inode));
static int ds_ioctl(struct inode * inode, struct file * file,
u_int cmd, u_long arg)
{
- struct pcmcia_bus_socket *s;
+ struct pcmcia_socket *s;
void __user *uarg = (char __user *)arg;
u_int size;
int ret, err;
break;
case DS_GET_CONFIGURATION_INFO:
if (buf->config.Function &&
- (buf->config.Function >= s->parent->functions))
+ (buf->config.Function >= s->functions))
ret = CS_BAD_ARGS;
else
- ret = pccard_get_configuration_info(s->parent,
+ ret = pccard_get_configuration_info(s,
buf->config.Function, &buf->config);
break;
case DS_GET_FIRST_TUPLE:
- down(&s->parent->skt_sem);
- pcmcia_validate_mem(s->parent);
- up(&s->parent->skt_sem);
- ret = pccard_get_first_tuple(s->parent, BIND_FN_ALL, &buf->tuple);
+ down(&s->skt_sem);
+ pcmcia_validate_mem(s);
+ up(&s->skt_sem);
+ ret = pccard_get_first_tuple(s, BIND_FN_ALL, &buf->tuple);
break;
case DS_GET_NEXT_TUPLE:
- ret = pccard_get_next_tuple(s->parent, BIND_FN_ALL, &buf->tuple);
+ ret = pccard_get_next_tuple(s, BIND_FN_ALL, &buf->tuple);
break;
case DS_GET_TUPLE_DATA:
buf->tuple.TupleData = buf->tuple_parse.data;
buf->tuple.TupleDataMax = sizeof(buf->tuple_parse.data);
- ret = pccard_get_tuple_data(s->parent, &buf->tuple);
+ ret = pccard_get_tuple_data(s, &buf->tuple);
break;
case DS_PARSE_TUPLE:
buf->tuple.TupleData = buf->tuple_parse.data;
ret = pccard_parse_tuple(&buf->tuple, &buf->tuple_parse.parse);
break;
case DS_RESET_CARD:
- ret = pccard_reset_card(s->parent);
+ ret = pccard_reset_card(s);
break;
case DS_GET_STATUS:
if (buf->status.Function &&
- (buf->status.Function >= s->parent->functions))
+ (buf->status.Function >= s->functions))
ret = CS_BAD_ARGS;
else
- ret = pccard_get_status(s->parent, buf->status.Function, &buf->status);
+ ret = pccard_get_status(s, buf->status.Function, &buf->status);
break;
case DS_VALIDATE_CIS:
- down(&s->parent->skt_sem);
- pcmcia_validate_mem(s->parent);
- up(&s->parent->skt_sem);
- ret = pccard_validate_cis(s->parent, BIND_FN_ALL, &buf->cisinfo);
+ down(&s->skt_sem);
+ pcmcia_validate_mem(s);
+ up(&s->skt_sem);
+ ret = pccard_validate_cis(s, BIND_FN_ALL, &buf->cisinfo);
break;
case DS_SUSPEND_CARD:
- ret = pcmcia_suspend_card(s->parent);
+ ret = pcmcia_suspend_card(s);
break;
case DS_RESUME_CARD:
- ret = pcmcia_resume_card(s->parent);
+ ret = pcmcia_resume_card(s);
break;
case DS_EJECT_CARD:
- err = pcmcia_eject_card(s->parent);
+ err = pcmcia_eject_card(s);
break;
case DS_INSERT_CARD:
- err = pcmcia_insert_card(s->parent);
+ err = pcmcia_insert_card(s);
break;
case DS_ACCESS_CONFIGURATION_REGISTER:
if ((buf->conf_reg.Action == CS_WRITE) && !capable(CAP_SYS_ADMIN)) {
goto free_out;
}
if (buf->conf_reg.Function &&
- (buf->conf_reg.Function >= s->parent->functions))
+ (buf->conf_reg.Function >= s->functions))
ret = CS_BAD_ARGS;
else
- ret = pccard_access_configuration_register(s->parent,
+ ret = pccard_access_configuration_register(s,
buf->conf_reg.Function, &buf->conf_reg);
break;
case DS_GET_FIRST_REGION:
goto free_out;
break;
case DS_GET_FIRST_WINDOW:
- ret = pcmcia_get_window(s->parent, &buf->win_info.handle, 0,
+ ret = pcmcia_get_window(s, &buf->win_info.handle, 0,
&buf->win_info.window);
break;
case DS_GET_NEXT_WINDOW:
- ret = pcmcia_get_window(s->parent, &buf->win_info.handle,
+ ret = pcmcia_get_window(s, &buf->win_info.handle,
buf->win_info.handle->index + 1, &buf->win_info.window);
break;
case DS_GET_MEM_PAGE:
&buf->win_info.map);
break;
case DS_REPLACE_CIS:
- ret = pcmcia_replace_cis(s->parent, &buf->cisdump);
+ ret = pcmcia_replace_cis(s, &buf->cisdump);
break;
case DS_BIND_REQUEST:
if (!capable(CAP_SYS_ADMIN)) {
#ifndef _LINUX_SS_H
#define _LINUX_SS_H
+#include <linux/config.h>
+#include <linux/device.h>
+
#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/bulkmem.h>
-#include <linux/device.h>
/* Definitions for card status flags for GetStatus */
#define SS_WRPROT 0x0001
struct config_t;
struct pcmcia_callback;
-
+struct user_info_t;
struct pcmcia_socket {
struct module *owner;
unsigned int thread_events;
/* pcmcia (16-bit) */
- struct pcmcia_bus_socket *pcmcia;
struct pcmcia_callback *callback;
+#if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE)
+ struct list_head devices_list; /* PCMCIA devices */
+ u8 device_count; /* the number of devices, used
+ * only internally and subject
+ * to incorrectness and change */
+
+ struct {
+ u8 present:1, /* PCMCIA card is present in socket */
+ busy:1, /* "master" ioctl is used */
+ dead:1, /* pcmcia module is being unloaded */
+ device_add_pending:1, /* a pseudo-multifunction-device
+ * add event is pending */
+ reserved:4;
+ } pcmcia_state;
+
+ struct work_struct device_add; /* for adding further pseudo-multifunction
+ * devices */
+
+#ifdef CONFIG_PCMCIA_IOCTL
+ struct user_info_t *user;
+ wait_queue_head_t queue;
+#endif
+#endif
+
/* cardbus (32-bit) */
#ifdef CONFIG_CARDBUS
struct resource * cb_cis_res;
projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / commitdiff