* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
*
* (C) 1999 David A. Hinds
- * (C) 2003 - 2004 Dominik Brodowski
+ * (C) 2003 - 2005 Dominik Brodowski
*/
#include <linux/config.h>
+#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/moduleparam.h>
#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/major.h>
-#include <linux/string.h>
#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/fcntl.h>
-#include <linux/sched.h>
-#include <linux/smp_lock.h>
-#include <linux/timer.h>
-#include <linux/ioctl.h>
-#include <linux/proc_fs.h>
-#include <linux/poll.h>
-#include <linux/pci.h>
#include <linux/list.h>
#include <linux/delay.h>
-#include <linux/kref.h>
#include <linux/workqueue.h>
#include <linux/crc32.h>
#include <linux/firmware.h>
-#include <asm/atomic.h>
-
#define IN_CARD_SERVICES
-#include <pcmcia/version.h>
#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
-#include <pcmcia/bulkmem.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/ds.h>
#include <pcmcia/ss.h>
spinlock_t pcmcia_dev_list_lock;
-static int unbind_request(struct pcmcia_bus_socket *s);
+static int unbind_request(struct pcmcia_socket *s);
/*====================================================================*/
};
-static int pcmcia_report_error(client_handle_t handle, error_info_t *err)
+static int pcmcia_report_error(struct pcmcia_device *p_dev, error_info_t *err)
{
int i;
char *serv;
- if (CHECK_HANDLE(handle))
+ if (!p_dev)
printk(KERN_NOTICE);
- else {
- struct pcmcia_device *p_dev = handle_to_pdev(handle);
+ else
printk(KERN_NOTICE "%s: ", p_dev->dev.bus_id);
- }
for (i = 0; i < ARRAY_SIZE(service_table); i++)
if (service_table[i].key == err->func)
/*======================================================================*/
-void cs_error(client_handle_t handle, int func, int ret)
+void cs_error(struct pcmcia_device *p_dev, int func, int ret)
{
error_info_t err = { func, ret };
- pcmcia_report_error(handle, &err);
+ pcmcia_report_error(p_dev, &err);
}
EXPORT_SYMBOL(cs_error);
unsigned int i;
u32 hash;
+ if (!p_drv->attach || !p_drv->event || !p_drv->detach)
+ printk(KERN_DEBUG "pcmcia: %s lacks a requisite callback "
+ "function\n", p_drv->drv.name);
+
while (did && did->match_flags) {
for (i=0; i<4; i++) {
if (!did->prod_id[i])
/*======================================================================*/
-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);
}
if (p_drv->attach) {
p_dev->instance = p_drv->attach();
- if ((!p_dev->instance) || (p_dev->client.state & CLIENT_UNBOUND)) {
+ if ((!p_dev->instance) || (p_dev->state & CLIENT_UNBOUND)) {
printk(KERN_NOTICE "ds: unable to create instance "
"of '%s'!\n", p_drv->drv.name);
ret = -EINVAL;
*/
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.Function = function;
- p_dev->client.state = CLIENT_UNBOUND;
+ p_dev->state = CLIENT_UNBOUND;
/* Add to the list in pcmcia_bus_socket */
spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
s->device_count--;
err_put:
up(&device_add_lock);
- pcmcia_put_bus_socket(s);
+ pcmcia_put_socket(s);
return NULL;
}
else
no_funcs = 1;
- /* 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->device_add_pending = 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->device_add_pending) {
+ if (!s->pcmcia_state.device_add_pending) {
+ s->pcmcia_state.device_add_pending = 1;
schedule_work(&s->device_add);
- s->device_add_pending = 1;
}
return;
}
/* 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;
pcmcia_device_stringattr(prod_id3, prod_id[2]);
pcmcia_device_stringattr(prod_id4, prod_id[3]);
+static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
+ int i;
+ u32 hash[4] = { 0, 0, 0, 0};
-static ssize_t pcmcia_store_allow_func_id_match (struct device * dev, struct device_attribute *attr,
- const char * buf, size_t count)
+ /* calculate hashes */
+ for (i=0; i<4; i++) {
+ if (!p_dev->prod_id[i])
+ continue;
+ hash[i] = crc32(0,p_dev->prod_id[i],strlen(p_dev->prod_id[i]));
+ }
+ return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X"
+ "pa%08Xpb%08Xpc%08Xpd%08X\n",
+ p_dev->has_manf_id ? p_dev->manf_id : 0,
+ p_dev->has_card_id ? p_dev->card_id : 0,
+ p_dev->has_func_id ? p_dev->func_id : 0,
+ p_dev->func, p_dev->device_no,
+ hash[0], hash[1], hash[2], hash[3]);
+}
+
+static ssize_t pcmcia_store_allow_func_id_match(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
if (!count)
__ATTR_RO(prod_id2),
__ATTR_RO(prod_id3),
__ATTR_RO(prod_id4),
+ __ATTR_RO(modalias),
__ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match),
__ATTR_NULL,
};
static int send_event_callback(struct device *dev, void * _data)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
+ struct pcmcia_driver *p_drv;
struct send_event_data *data = _data;
/* we get called for all sockets, but may only pass the event
if (p_dev->socket != data->skt)
return 0;
- if (p_dev->client.state & (CLIENT_UNBOUND|CLIENT_STALE))
+ p_drv = to_pcmcia_drv(p_dev->dev.driver);
+ if (!p_drv)
+ return 0;
+
+ if (p_dev->state & (CLIENT_UNBOUND|CLIENT_STALE))
return 0;
- if (p_dev->client.EventMask & data->event)
- return EVENT(&p_dev->client, data->event, data->priority);
+ if (p_drv->event)
+ return p_drv->event(data->event, data->priority,
+ &p_dev->event_callback_args);
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->state &= ~DS_SOCKET_PRESENT;
+ 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->state |= DS_SOCKET_PRESENT;
+ 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)
+int pcmcia_register_client(struct pcmcia_device **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;
+ struct pcmcia_driver *p_drv = NULL;
/* Look for unbound client with matching dev_info */
down_read(&pcmcia_socket_list_rwsem);
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) {
- struct pcmcia_driver *p_drv;
+ list_for_each_entry(p_dev, &s->devices_list, socket_device_list) {
p_dev = pcmcia_get_dev(p_dev);
if (!p_dev)
continue;
- if (!(p_dev->client.state & CLIENT_UNBOUND) ||
+ if (!(p_dev->state & CLIENT_UNBOUND) ||
(!p_dev->dev.driver)) {
pcmcia_put_dev(p_dev);
continue;
}
p_drv = to_pcmcia_drv(p_dev->dev.driver);
if (!strncmp(p_drv->drv.name, (char *)req->dev_info, DEV_NAME_LEN)) {
- client = &p_dev->client;
spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
goto found;
}
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)
+ if (!p_dev)
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;
- client->Socket = s;
- client->EventMask = req->EventMask;
- client->event_handler = req->event_handler;
- client->event_callback_args = req->event_callback_args;
- client->event_callback_args.client_handle = client;
+ *handle = p_dev;
+ p_dev->state &= ~CLIENT_UNBOUND;
+ p_dev->event_callback_args = req->event_callback_args;
+ p_dev->event_callback_args.client_handle = p_dev;
- if (s->state & SOCKET_CARDBUS)
- client->state |= CLIENT_CARDBUS;
- if ((!(s->state & SOCKET_CARDBUS)) && (s->functions == 0) &&
- (client->Function != BIND_FN_ALL)) {
+ if (!s->functions) {
cistpl_longlink_mfc_t mfc;
- if (pccard_read_tuple(s, client->Function, CISTPL_LONGLINK_MFC, &mfc)
+ if (pccard_read_tuple(s, p_dev->func, CISTPL_LONGLINK_MFC, &mfc)
== CS_SUCCESS)
s->functions = mfc.nfn;
else
}
ds_dbg(1, "register_client(): client 0x%p, dev %s\n",
- client, p_dev->dev.bus_id);
- if (client->EventMask & CS_EVENT_REGISTRATION_COMPLETE)
- EVENT(client, CS_EVENT_REGISTRATION_COMPLETE, CS_EVENT_PRI_LOW);
+ p_dev, p_dev->dev.bus_id);
if ((s->state & (SOCKET_PRESENT|SOCKET_CARDBUS)) == SOCKET_PRESENT) {
- if (client->EventMask & CS_EVENT_CARD_INSERTION)
- EVENT(client, CS_EVENT_CARD_INSERTION, CS_EVENT_PRI_LOW);
+ if (p_drv->event)
+ p_drv->event(CS_EVENT_CARD_INSERTION, CS_EVENT_PRI_LOW,
+ &p_dev->event_callback_args);
+
}
return CS_SUCCESS;
/* 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;
}
p_dev = list_entry((&s->devices_list)->next, struct pcmcia_device, socket_device_list);
list_del(&p_dev->socket_device_list);
- p_dev->client.state |= CLIENT_STALE;
+ p_dev->state |= CLIENT_STALE;
spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
device_unregister(&p_dev->dev);
return 0;
} /* unbind_request */
-int pcmcia_deregister_client(client_handle_t handle)
+int pcmcia_deregister_client(struct pcmcia_device *p_dev)
{
struct pcmcia_socket *s;
int i;
- struct pcmcia_device *p_dev = handle_to_pdev(handle);
- if (CHECK_HANDLE(handle))
- return CS_BAD_HANDLE;
+ s = p_dev->socket;
+ ds_dbg(1, "deregister_client(%p)\n", p_dev);
- s = SOCKET(handle);
- ds_dbg(1, "deregister_client(%p)\n", handle);
-
- if (handle->state & (CLIENT_IRQ_REQ|CLIENT_IO_REQ|CLIENT_CONFIG_LOCKED))
+ if (p_dev->state & (CLIENT_IRQ_REQ|CLIENT_IO_REQ|CLIENT_CONFIG_LOCKED))
goto warn_out;
for (i = 0; i < MAX_WIN; i++)
- if (handle->state & CLIENT_WIN_REQ(i))
+ if (p_dev->state & CLIENT_WIN_REQ(i))
goto warn_out;
- if (handle->state & CLIENT_STALE) {
- handle->client_magic = 0;
- handle->state &= ~CLIENT_STALE;
+ if (p_dev->state & CLIENT_STALE) {
+ p_dev->state &= ~CLIENT_STALE;
pcmcia_put_dev(p_dev);
} else {
- handle->state = CLIENT_UNBOUND;
- handle->event_handler = NULL;
+ p_dev->state = CLIENT_UNBOUND;
}
return CS_SUCCESS;
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->state |= DS_SOCKET_DEAD;
- pcmcia_put_bus_socket(socket->pcmcia);
- socket->pcmcia = NULL;
+ pcmcia_put_socket(socket);
return;
}
projects / linux-2.6-omap-h63xx.git / blobdiff