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@@ -10,44 +10,29 @@
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* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
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*
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* (C) 1999 David A. Hinds
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- * (C) 2003 - 2004 Dominik Brodowski
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+ * (C) 2003 - 2005 Dominik Brodowski
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*/
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#include <linux/config.h>
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+#include <linux/kernel.h>
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#include <linux/module.h>
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-#include <linux/moduleparam.h>
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#include <linux/init.h>
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-#include <linux/kernel.h>
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-#include <linux/major.h>
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-#include <linux/string.h>
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#include <linux/errno.h>
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-#include <linux/slab.h>
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-#include <linux/mm.h>
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-#include <linux/fcntl.h>
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-#include <linux/sched.h>
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-#include <linux/smp_lock.h>
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-#include <linux/timer.h>
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-#include <linux/ioctl.h>
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-#include <linux/proc_fs.h>
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-#include <linux/poll.h>
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-#include <linux/pci.h>
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#include <linux/list.h>
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#include <linux/delay.h>
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-#include <linux/kref.h>
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#include <linux/workqueue.h>
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-
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-#include <asm/atomic.h>
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+#include <linux/crc32.h>
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+#include <linux/firmware.h>
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#define IN_CARD_SERVICES
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-#include <pcmcia/version.h>
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#include <pcmcia/cs_types.h>
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#include <pcmcia/cs.h>
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-#include <pcmcia/bulkmem.h>
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#include <pcmcia/cistpl.h>
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#include <pcmcia/ds.h>
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#include <pcmcia/ss.h>
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#include "cs_internal.h"
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+#include "ds_internal.h"
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/*====================================================================*/
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@@ -70,49 +55,9 @@ module_param_named(pc_debug, ds_pc_debug, int, 0644);
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#define ds_dbg(lvl, fmt, arg...) do { } while (0)
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#endif
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-/*====================================================================*/
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+spinlock_t pcmcia_dev_list_lock;
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-/* Device user information */
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-#define MAX_EVENTS 32
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-#define USER_MAGIC 0x7ea4
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-#define CHECK_USER(u) \
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- (((u) == NULL) || ((u)->user_magic != USER_MAGIC))
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-typedef struct user_info_t {
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- u_int user_magic;
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- int event_head, event_tail;
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- event_t event[MAX_EVENTS];
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- struct user_info_t *next;
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- struct pcmcia_bus_socket *socket;
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-} user_info_t;
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-
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-/* Socket state information */
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-struct pcmcia_bus_socket {
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- struct kref refcount;
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- struct pcmcia_callback callback;
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- int state;
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- user_info_t *user;
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- wait_queue_head_t queue;
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- struct pcmcia_socket *parent;
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-
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- /* the PCMCIA devices connected to this socket (normally one, more
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- * for multifunction devices: */
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- struct list_head devices_list;
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- u8 device_count; /* the number of devices, used
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- * only internally and subject
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- * to incorrectness and change */
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-};
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-static spinlock_t pcmcia_dev_list_lock;
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-
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-#define DS_SOCKET_PRESENT 0x01
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-#define DS_SOCKET_BUSY 0x02
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-#define DS_SOCKET_REMOVAL_PENDING 0x10
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-#define DS_SOCKET_DEAD 0x80
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-
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-/*====================================================================*/
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-
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-static int major_dev = -1;
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-
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-static int unbind_request(struct pcmcia_bus_socket *s);
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+static int unbind_request(struct pcmcia_socket *s);
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/*====================================================================*/
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@@ -213,7 +158,7 @@ static const lookup_t service_table[] = {
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};
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-int pcmcia_report_error(client_handle_t handle, error_info_t *err)
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+static int pcmcia_report_error(client_handle_t handle, error_info_t *err)
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{
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int i;
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char *serv;
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@@ -243,7 +188,6 @@ int pcmcia_report_error(client_handle_t handle, error_info_t *err)
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return CS_SUCCESS;
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} /* report_error */
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-EXPORT_SYMBOL(pcmcia_report_error);
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/* end of code which was in cs.c before */
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@@ -256,29 +200,101 @@ void cs_error(client_handle_t handle, int func, int ret)
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}
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EXPORT_SYMBOL(cs_error);
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-/*======================================================================*/
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-
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-static struct pcmcia_driver * get_pcmcia_driver (dev_info_t *dev_info);
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-static struct pcmcia_bus_socket * get_socket_info_by_nr(unsigned int nr);
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-static void pcmcia_release_bus_socket(struct kref *refcount)
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+static void pcmcia_check_driver(struct pcmcia_driver *p_drv)
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{
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- struct pcmcia_bus_socket *s = container_of(refcount, struct pcmcia_bus_socket, refcount);
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- pcmcia_put_socket(s->parent);
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- kfree(s);
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+ struct pcmcia_device_id *did = p_drv->id_table;
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+ unsigned int i;
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+ u32 hash;
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+
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+ while (did && did->match_flags) {
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+ for (i=0; i<4; i++) {
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+ if (!did->prod_id[i])
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+ continue;
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+
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+ hash = crc32(0, did->prod_id[i], strlen(did->prod_id[i]));
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+ if (hash == did->prod_id_hash[i])
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+ continue;
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+
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+ printk(KERN_DEBUG "pcmcia: %s: invalid hash for "
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+ "product string \"%s\": is 0x%x, should "
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+ "be 0x%x\n", p_drv->drv.name, did->prod_id[i],
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+ did->prod_id_hash[i], hash);
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+ printk(KERN_DEBUG "pcmcia: see "
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+ "Documentation/pcmcia/devicetable.txt for "
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+ "details\n");
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+ }
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+ did++;
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+ }
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+
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+ return;
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}
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-static void pcmcia_put_bus_socket(struct pcmcia_bus_socket *s)
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+
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+#ifdef CONFIG_PCMCIA_LOAD_CIS
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+
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+/**
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+ * pcmcia_load_firmware - load CIS from userspace if device-provided is broken
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+ * @dev - the pcmcia device which needs a CIS override
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+ * @filename - requested filename in /lib/firmware/cis/
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+ *
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+ * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if
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+ * the one provided by the card is broken. The firmware files reside in
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+ * /lib/firmware/cis/ in userspace.
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+ */
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+static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename)
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{
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- kref_put(&s->refcount, pcmcia_release_bus_socket);
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+ struct pcmcia_socket *s = dev->socket;
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+ const struct firmware *fw;
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+ char path[20];
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+ int ret=-ENOMEM;
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+ cisdump_t *cis;
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+
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+ if (!filename)
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+ return -EINVAL;
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+
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+ ds_dbg(1, "trying to load firmware %s\n", filename);
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+
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+ if (strlen(filename) > 14)
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+ return -EINVAL;
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+
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+ snprintf(path, 20, "%s", filename);
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+
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+ if (request_firmware(&fw, path, &dev->dev) == 0) {
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+ if (fw->size >= CISTPL_MAX_CIS_SIZE)
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+ goto release;
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+
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+ cis = kmalloc(sizeof(cisdump_t), GFP_KERNEL);
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+ if (!cis)
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+ goto release;
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+
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+ memset(cis, 0, sizeof(cisdump_t));
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+
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+ cis->Length = fw->size + 1;
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+ memcpy(cis->Data, fw->data, fw->size);
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+
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+ if (!pcmcia_replace_cis(s, cis))
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+ ret = 0;
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+ }
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+ release:
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+ release_firmware(fw);
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+
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+ return (ret);
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}
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-static struct pcmcia_bus_socket *pcmcia_get_bus_socket(struct pcmcia_bus_socket *s)
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+#else /* !CONFIG_PCMCIA_LOAD_CIS */
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+
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+static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename)
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{
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- kref_get(&s->refcount);
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- return (s);
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+ return -ENODEV;
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}
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+#endif
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+
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+
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+/*======================================================================*/
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+
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+
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/**
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* pcmcia_register_driver - register a PCMCIA driver with the bus core
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*
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@@ -292,6 +308,8 @@ int pcmcia_register_driver(struct pcmcia_driver *driver)
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if (!driver)
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return -EINVAL;
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+ pcmcia_check_driver(driver);
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+
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/* initialize common fields */
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driver->drv.bus = &pcmcia_bus_type;
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driver->drv.owner = driver->owner;
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@@ -311,42 +329,10 @@ void pcmcia_unregister_driver(struct pcmcia_driver *driver)
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}
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EXPORT_SYMBOL(pcmcia_unregister_driver);
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-#ifdef CONFIG_PROC_FS
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-static struct proc_dir_entry *proc_pccard = NULL;
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-
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-static int proc_read_drivers_callback(struct device_driver *driver, void *d)
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-{
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- char **p = d;
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- struct pcmcia_driver *p_drv = container_of(driver,
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- struct pcmcia_driver, drv);
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-
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- *p += sprintf(*p, "%-24.24s 1 %d\n", p_drv->drv.name,
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-#ifdef CONFIG_MODULE_UNLOAD
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- (p_drv->owner) ? module_refcount(p_drv->owner) : 1
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-#else
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- 1
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-#endif
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- );
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- d = (void *) p;
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-
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- return 0;
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-}
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-
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-static int proc_read_drivers(char *buf, char **start, off_t pos,
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- int count, int *eof, void *data)
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-{
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- char *p = buf;
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-
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- bus_for_each_drv(&pcmcia_bus_type, NULL,
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- (void *) &p, proc_read_drivers_callback);
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-
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- return (p - buf);
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-}
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-#endif
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/* pcmcia_device handling */
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-static struct pcmcia_device * pcmcia_get_dev(struct pcmcia_device *p_dev)
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+struct pcmcia_device * pcmcia_get_dev(struct pcmcia_device *p_dev)
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{
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struct device *tmp_dev;
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tmp_dev = get_device(&p_dev->dev);
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@@ -355,7 +341,7 @@ static struct pcmcia_device * pcmcia_get_dev(struct pcmcia_device *p_dev)
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return to_pcmcia_dev(tmp_dev);
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}
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-static void pcmcia_put_dev(struct pcmcia_device *p_dev)
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+void pcmcia_put_dev(struct pcmcia_device *p_dev)
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{
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if (p_dev)
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put_device(&p_dev->dev);
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@@ -365,7 +351,7 @@ static void pcmcia_release_dev(struct device *dev)
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{
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struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
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ds_dbg(1, "releasing dev %p\n", p_dev);
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- pcmcia_put_bus_socket(p_dev->socket->pcmcia);
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+ pcmcia_put_socket(p_dev->socket);
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kfree(p_dev);
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}
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@@ -500,34 +486,38 @@ static int pcmcia_device_query(struct pcmcia_device *p_dev)
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*/
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static DECLARE_MUTEX(device_add_lock);
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-static struct pcmcia_device * pcmcia_device_add(struct pcmcia_bus_socket *s, unsigned int function)
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+struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function)
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{
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struct pcmcia_device *p_dev;
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unsigned long flags;
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- s = pcmcia_get_bus_socket(s);
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+ s = pcmcia_get_socket(s);
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if (!s)
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return NULL;
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down(&device_add_lock);
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+ /* max of 2 devices per card */
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+ if (s->device_count == 2)
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+ goto err_put;
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+
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p_dev = kmalloc(sizeof(struct pcmcia_device), GFP_KERNEL);
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if (!p_dev)
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goto err_put;
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memset(p_dev, 0, sizeof(struct pcmcia_device));
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- p_dev->socket = s->parent;
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+ p_dev->socket = s;
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p_dev->device_no = (s->device_count++);
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p_dev->func = function;
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p_dev->dev.bus = &pcmcia_bus_type;
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- p_dev->dev.parent = s->parent->dev.dev;
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+ p_dev->dev.parent = s->dev.dev;
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p_dev->dev.release = pcmcia_release_dev;
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sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no);
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/* compat */
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p_dev->client.client_magic = CLIENT_MAGIC;
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- p_dev->client.Socket = s->parent;
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+ p_dev->client.Socket = s;
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p_dev->client.Function = function;
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p_dev->client.state = CLIENT_UNBOUND;
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@@ -536,6 +526,8 @@ static struct pcmcia_device * pcmcia_device_add(struct pcmcia_bus_socket *s, uns
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list_add_tail(&p_dev->socket_device_list, &s->devices_list);
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spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
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+ pcmcia_device_query(p_dev);
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+
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if (device_register(&p_dev->dev)) {
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spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
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list_del(&p_dev->socket_device_list);
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@@ -553,7 +545,7 @@ static struct pcmcia_device * pcmcia_device_add(struct pcmcia_bus_socket *s, uns
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s->device_count--;
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err_put:
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up(&device_add_lock);
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- pcmcia_put_bus_socket(s);
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+ pcmcia_put_socket(s);
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return NULL;
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}
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@@ -584,23 +576,252 @@ static int pcmcia_card_add(struct pcmcia_socket *s)
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/* this doesn't handle multifunction devices on one pcmcia function
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* yet. */
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for (i=0; i < no_funcs; i++)
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- pcmcia_device_add(s->pcmcia, i);
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+ pcmcia_device_add(s, i);
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return (ret);
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}
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+static void pcmcia_delayed_add_pseudo_device(void *data)
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+{
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+ struct pcmcia_socket *s = data;
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+ pcmcia_device_add(s, 0);
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+ s->pcmcia_state.device_add_pending = 0;
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+}
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+
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+static inline void pcmcia_add_pseudo_device(struct pcmcia_socket *s)
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+{
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+ if (!s->pcmcia_state.device_add_pending) {
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+ schedule_work(&s->device_add);
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+ s->pcmcia_state.device_add_pending = 1;
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+ }
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+ return;
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+}
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+
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+static int pcmcia_requery(struct device *dev, void * _data)
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+{
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+ struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
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+ if (!p_dev->dev.driver)
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+ pcmcia_device_query(p_dev);
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+
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+ return 0;
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+}
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+
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+static void pcmcia_bus_rescan(struct pcmcia_socket *skt)
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+{
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+ int no_devices=0;
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+ unsigned long flags;
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+
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+ /* must be called with skt_sem held */
|
|
|
+ spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
|
|
|
+ if (list_empty(&skt->devices_list))
|
|
|
+ no_devices=1;
|
|
|
+ spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
|
|
|
+
|
|
|
+ /* if no devices were added for this socket yet because of
|
|
|
+ * missing resource information or other trouble, we need to
|
|
|
+ * do this now. */
|
|
|
+ if (no_devices) {
|
|
|
+ int ret = pcmcia_card_add(skt);
|
|
|
+ if (ret)
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* some device information might have changed because of a CIS
|
|
|
+ * update or because we can finally read it correctly... so
|
|
|
+ * determine it again, overwriting old values if necessary. */
|
|
|
+ bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery);
|
|
|
+
|
|
|
+ /* we re-scan all devices, not just the ones connected to this
|
|
|
+ * socket. This does not matter, though. */
|
|
|
+ bus_rescan_devices(&pcmcia_bus_type);
|
|
|
+}
|
|
|
+
|
|
|
+static inline int pcmcia_devmatch(struct pcmcia_device *dev,
|
|
|
+ struct pcmcia_device_id *did)
|
|
|
+{
|
|
|
+ if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) {
|
|
|
+ if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id))
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) {
|
|
|
+ if ((!dev->has_card_id) || (dev->card_id != did->card_id))
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) {
|
|
|
+ if (dev->func != did->function)
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) {
|
|
|
+ if (!dev->prod_id[0])
|
|
|
+ return 0;
|
|
|
+ if (strcmp(did->prod_id[0], dev->prod_id[0]))
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) {
|
|
|
+ if (!dev->prod_id[1])
|
|
|
+ return 0;
|
|
|
+ if (strcmp(did->prod_id[1], dev->prod_id[1]))
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) {
|
|
|
+ if (!dev->prod_id[2])
|
|
|
+ return 0;
|
|
|
+ if (strcmp(did->prod_id[2], dev->prod_id[2]))
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) {
|
|
|
+ if (!dev->prod_id[3])
|
|
|
+ return 0;
|
|
|
+ if (strcmp(did->prod_id[3], dev->prod_id[3]))
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) {
|
|
|
+ /* handle pseudo multifunction devices:
|
|
|
+ * there are at most two pseudo multifunction devices.
|
|
|
+ * if we're matching against the first, schedule a
|
|
|
+ * call which will then check whether there are two
|
|
|
+ * pseudo devices, and if not, add the second one.
|
|
|
+ */
|
|
|
+ if (dev->device_no == 0)
|
|
|
+ pcmcia_add_pseudo_device(dev->socket);
|
|
|
+
|
|
|
+ if (dev->device_no != did->device_no)
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) {
|
|
|
+ if ((!dev->has_func_id) || (dev->func_id != did->func_id))
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ /* if this is a pseudo-multi-function device,
|
|
|
+ * we need explicit matches */
|
|
|
+ if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO)
|
|
|
+ return 0;
|
|
|
+ if (dev->device_no)
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ /* also, FUNC_ID matching needs to be activated by userspace
|
|
|
+ * after it has re-checked that there is no possible module
|
|
|
+ * with a prod_id/manf_id/card_id match.
|
|
|
+ */
|
|
|
+ if (!dev->allow_func_id_match)
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) {
|
|
|
+ if (!dev->socket->fake_cis)
|
|
|
+ pcmcia_load_firmware(dev, did->cisfile);
|
|
|
+
|
|
|
+ if (!dev->socket->fake_cis)
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) {
|
|
|
+ int i;
|
|
|
+ for (i=0; i<4; i++)
|
|
|
+ if (dev->prod_id[i])
|
|
|
+ return 0;
|
|
|
+ if (dev->has_manf_id || dev->has_card_id || dev->has_func_id)
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ dev->dev.driver_data = (void *) did;
|
|
|
+
|
|
|
+ return 1;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) {
|
|
|
struct pcmcia_device * p_dev = to_pcmcia_dev(dev);
|
|
|
struct pcmcia_driver * p_drv = to_pcmcia_drv(drv);
|
|
|
+ struct pcmcia_device_id *did = p_drv->id_table;
|
|
|
|
|
|
/* matching by cardmgr */
|
|
|
if (p_dev->cardmgr == p_drv)
|
|
|
return 1;
|
|
|
|
|
|
+ while (did && did->match_flags) {
|
|
|
+ if (pcmcia_devmatch(p_dev, did))
|
|
|
+ return 1;
|
|
|
+ did++;
|
|
|
+ }
|
|
|
+
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
+#ifdef CONFIG_HOTPLUG
|
|
|
+
|
|
|
+static int pcmcia_bus_hotplug(struct device *dev, char **envp, int num_envp,
|
|
|
+ char *buffer, int buffer_size)
|
|
|
+{
|
|
|
+ struct pcmcia_device *p_dev;
|
|
|
+ int i, length = 0;
|
|
|
+ u32 hash[4] = { 0, 0, 0, 0};
|
|
|
+
|
|
|
+ if (!dev)
|
|
|
+ return -ENODEV;
|
|
|
+
|
|
|
+ p_dev = to_pcmcia_dev(dev);
|
|
|
+
|
|
|
+ /* 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]));
|
|
|
+ }
|
|
|
+
|
|
|
+ i = 0;
|
|
|
+
|
|
|
+ if (add_hotplug_env_var(envp, num_envp, &i,
|
|
|
+ buffer, buffer_size, &length,
|
|
|
+ "SOCKET_NO=%u",
|
|
|
+ p_dev->socket->sock))
|
|
|
+ return -ENOMEM;
|
|
|
+
|
|
|
+ if (add_hotplug_env_var(envp, num_envp, &i,
|
|
|
+ buffer, buffer_size, &length,
|
|
|
+ "DEVICE_NO=%02X",
|
|
|
+ p_dev->device_no))
|
|
|
+ return -ENOMEM;
|
|
|
+
|
|
|
+ if (add_hotplug_env_var(envp, num_envp, &i,
|
|
|
+ buffer, buffer_size, &length,
|
|
|
+ "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X"
|
|
|
+ "pa%08Xpb%08Xpc%08Xpd%08X",
|
|
|
+ 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]))
|
|
|
+ return -ENOMEM;
|
|
|
+
|
|
|
+ envp[i] = NULL;
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+#else
|
|
|
+
|
|
|
+static int pcmcia_bus_hotplug(struct device *dev, char **envp, int num_envp,
|
|
|
+ char *buffer, int buffer_size)
|
|
|
+{
|
|
|
+ return -ENODEV;
|
|
|
+}
|
|
|
+
|
|
|
+#endif
|
|
|
+
|
|
|
/************************ per-device sysfs output ***************************/
|
|
|
|
|
|
#define pcmcia_device_attr(field, test, format) \
|
|
@@ -626,6 +847,43 @@ pcmcia_device_stringattr(prod_id2, prod_id[1]);
|
|
|
pcmcia_device_stringattr(prod_id3, prod_id[2]);
|
|
|
pcmcia_device_stringattr(prod_id4, prod_id[3]);
|
|
|
|
|
|
+static ssize_t modalias_show(struct device *dev, char *buf)
|
|
|
+{
|
|
|
+ struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
|
|
|
+ int i;
|
|
|
+ u32 hash[4] = { 0, 0, 0, 0};
|
|
|
+
|
|
|
+ /* 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)
|
|
|
+ return -EINVAL;
|
|
|
+
|
|
|
+ down(&p_dev->socket->skt_sem);
|
|
|
+ p_dev->allow_func_id_match = 1;
|
|
|
+ up(&p_dev->socket->skt_sem);
|
|
|
+
|
|
|
+ bus_rescan_devices(&pcmcia_bus_type);
|
|
|
+
|
|
|
+ return count;
|
|
|
+}
|
|
|
+
|
|
|
static struct device_attribute pcmcia_dev_attrs[] = {
|
|
|
__ATTR(function, 0444, func_show, NULL),
|
|
|
__ATTR_RO(func_id),
|
|
@@ -635,44 +893,12 @@ static struct device_attribute pcmcia_dev_attrs[] = {
|
|
|
__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,
|
|
|
};
|
|
|
|
|
|
|
|
|
-/*======================================================================
|
|
|
-
|
|
|
- These manage a ring buffer of events pending for one user process
|
|
|
-
|
|
|
-======================================================================*/
|
|
|
-
|
|
|
-static int queue_empty(user_info_t *user)
|
|
|
-{
|
|
|
- return (user->event_head == user->event_tail);
|
|
|
-}
|
|
|
-
|
|
|
-static event_t get_queued_event(user_info_t *user)
|
|
|
-{
|
|
|
- user->event_tail = (user->event_tail+1) % MAX_EVENTS;
|
|
|
- return user->event[user->event_tail];
|
|
|
-}
|
|
|
-
|
|
|
-static void queue_event(user_info_t *user, event_t event)
|
|
|
-{
|
|
|
- user->event_head = (user->event_head+1) % MAX_EVENTS;
|
|
|
- if (user->event_head == user->event_tail)
|
|
|
- user->event_tail = (user->event_tail+1) % MAX_EVENTS;
|
|
|
- user->event[user->event_head] = event;
|
|
|
-}
|
|
|
-
|
|
|
-static void handle_event(struct pcmcia_bus_socket *s, event_t event)
|
|
|
-{
|
|
|
- user_info_t *user;
|
|
|
- for (user = s->user; user; user = user->next)
|
|
|
- queue_event(user, event);
|
|
|
- wake_up_interruptible(&s->queue);
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
/*======================================================================
|
|
|
|
|
|
The card status event handler.
|
|
@@ -706,21 +932,13 @@ static int send_event_callback(struct device *dev, void * _data)
|
|
|
|
|
|
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 */
|
|
|
|
|
|
|
|
@@ -731,25 +949,25 @@ static int send_event(struct pcmcia_socket *s, event_t event, int priority)
|
|
|
|
|
|
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:
|
|
@@ -757,137 +975,22 @@ static int ds_event(struct pcmcia_socket *skt, event_t event, int priority)
|
|
|
break;
|
|
|
|
|
|
default:
|
|
|
- handle_event(s, event);
|
|
|
+ handle_event(skt, event);
|
|
|
send_event(skt, event, priority);
|
|
|
break;
|
|
|
}
|
|
|
|
|
|
+ pcmcia_put_socket(s);
|
|
|
+
|
|
|
return 0;
|
|
|
} /* ds_event */
|
|
|
|
|
|
|
|
|
-/*======================================================================
|
|
|
-
|
|
|
- bind_request() and bind_device() are merged by now. Register_client()
|
|
|
- is called right at the end of bind_request(), during the driver's
|
|
|
- ->attach() call. Individual descriptions:
|
|
|
-
|
|
|
- bind_request() connects a socket to a particular client driver.
|
|
|
- It looks up the specified device ID in the list of registered
|
|
|
- drivers, binds it to the socket, and tries to create an instance
|
|
|
- of the device. unbind_request() deletes a driver instance.
|
|
|
-
|
|
|
- Bind_device() associates a device driver with a particular socket.
|
|
|
- It is normally called by Driver Services after it has identified
|
|
|
- a newly inserted card. An instance of that driver will then be
|
|
|
- eligible to register as a client of this socket.
|
|
|
-
|
|
|
- Register_client() uses the dev_info_t handle to match the
|
|
|
- caller with a socket. The driver must have already been bound
|
|
|
- to a socket with bind_device() -- in fact, bind_device()
|
|
|
- allocates the client structure that will be used.
|
|
|
-
|
|
|
-======================================================================*/
|
|
|
-
|
|
|
-static int bind_request(struct pcmcia_bus_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);
|
|
|
- if (!s)
|
|
|
- return -EINVAL;
|
|
|
-
|
|
|
- ds_dbg(2, "bind_request(%d, '%s')\n", s->parent->sock,
|
|
|
- (char *)bind_info->dev_info);
|
|
|
-
|
|
|
- p_drv = get_pcmcia_driver(&bind_info->dev_info);
|
|
|
- if (!p_drv) {
|
|
|
- ret = -EINVAL;
|
|
|
- goto err_put;
|
|
|
- }
|
|
|
-
|
|
|
- if (!try_module_get(p_drv->owner)) {
|
|
|
- ret = -EINVAL;
|
|
|
- goto err_put_driver;
|
|
|
- }
|
|
|
-
|
|
|
- spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
|
|
|
- list_for_each_entry(p_dev, &s->devices_list, socket_device_list) {
|
|
|
- if (p_dev->func == bind_info->function) {
|
|
|
- if ((p_dev->dev.driver == &p_drv->drv)) {
|
|
|
- if (p_dev->cardmgr) {
|
|
|
- /* if there's already a device
|
|
|
- * registered, and it was registered
|
|
|
- * by userspace before, we need to
|
|
|
- * return the "instance". */
|
|
|
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
|
|
|
- bind_info->instance = p_dev->instance;
|
|
|
- ret = -EBUSY;
|
|
|
- goto err_put_module;
|
|
|
- } else {
|
|
|
- /* the correct driver managed to bind
|
|
|
- * itself magically to the correct
|
|
|
- * device. */
|
|
|
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
|
|
|
- p_dev->cardmgr = p_drv;
|
|
|
- ret = 0;
|
|
|
- goto err_put_module;
|
|
|
- }
|
|
|
- } else if (!p_dev->dev.driver) {
|
|
|
- /* there's already a device available where
|
|
|
- * no device has been bound to yet. So we don't
|
|
|
- * need to register a device! */
|
|
|
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
|
|
|
- goto rescan;
|
|
|
- }
|
|
|
- }
|
|
|
- }
|
|
|
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
|
|
|
-
|
|
|
- p_dev = pcmcia_device_add(s, bind_info->function);
|
|
|
- if (!p_dev) {
|
|
|
- ret = -EIO;
|
|
|
- goto err_put_module;
|
|
|
- }
|
|
|
-
|
|
|
-rescan:
|
|
|
- p_dev->cardmgr = p_drv;
|
|
|
-
|
|
|
- pcmcia_device_query(p_dev);
|
|
|
-
|
|
|
- /*
|
|
|
- * Prevent this racing with a card insertion.
|
|
|
- */
|
|
|
- down(&s->parent->skt_sem);
|
|
|
- bus_rescan_devices(&pcmcia_bus_type);
|
|
|
- up(&s->parent->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
|
|
|
- * paths...
|
|
|
- */
|
|
|
- if (!(p_dev->dev.driver == &p_drv->drv))
|
|
|
- p_dev->cardmgr = NULL;
|
|
|
-
|
|
|
- err_put_module:
|
|
|
- module_put(p_drv->owner);
|
|
|
- err_put_driver:
|
|
|
- put_driver(&p_drv->drv);
|
|
|
- err_put:
|
|
|
- pcmcia_put_bus_socket(s);
|
|
|
-
|
|
|
- return (ret);
|
|
|
-} /* bind_request */
|
|
|
-
|
|
|
|
|
|
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 */
|
|
@@ -898,14 +1001,11 @@ int pcmcia_register_client(client_handle_t *handle, client_reg_t *req)
|
|
|
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)
|
|
@@ -924,14 +1024,14 @@ int pcmcia_register_client(client_handle_t *handle, client_reg_t *req)
|
|
|
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;
|
|
@@ -978,106 +1078,15 @@ int pcmcia_register_client(client_handle_t *handle, client_reg_t *req)
|
|
|
EXPORT_SYMBOL(pcmcia_register_client);
|
|
|
|
|
|
|
|
|
-/*====================================================================*/
|
|
|
-
|
|
|
-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)
|
|
|
-{
|
|
|
- dev_node_t *node;
|
|
|
- struct pcmcia_device *p_dev;
|
|
|
- unsigned long flags;
|
|
|
- int ret = 0;
|
|
|
-
|
|
|
-#ifdef CONFIG_CARDBUS
|
|
|
- /*
|
|
|
- * Some unbelievably ugly code to associate the PCI cardbus
|
|
|
- * device and its driver with the PCMCIA "bind" information.
|
|
|
- */
|
|
|
- {
|
|
|
- struct pci_bus *bus;
|
|
|
-
|
|
|
- bus = pcmcia_lookup_bus(s->parent);
|
|
|
- if (bus) {
|
|
|
- struct list_head *list;
|
|
|
- struct pci_dev *dev = NULL;
|
|
|
-
|
|
|
- list = bus->devices.next;
|
|
|
- while (list != &bus->devices) {
|
|
|
- struct pci_dev *pdev = pci_dev_b(list);
|
|
|
- list = list->next;
|
|
|
-
|
|
|
- if (first) {
|
|
|
- dev = pdev;
|
|
|
- break;
|
|
|
- }
|
|
|
-
|
|
|
- /* Try to handle "next" here some way? */
|
|
|
- }
|
|
|
- if (dev && dev->driver) {
|
|
|
- strlcpy(bind_info->name, dev->driver->name, DEV_NAME_LEN);
|
|
|
- bind_info->major = 0;
|
|
|
- bind_info->minor = 0;
|
|
|
- bind_info->next = NULL;
|
|
|
- return 0;
|
|
|
- }
|
|
|
- }
|
|
|
- }
|
|
|
-#endif
|
|
|
-
|
|
|
- spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
|
|
|
- list_for_each_entry(p_dev, &s->devices_list, socket_device_list) {
|
|
|
- if (p_dev->func == bind_info->function) {
|
|
|
- p_dev = pcmcia_get_dev(p_dev);
|
|
|
- if (!p_dev)
|
|
|
- continue;
|
|
|
- goto found;
|
|
|
- }
|
|
|
- }
|
|
|
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
|
|
|
- return -ENODEV;
|
|
|
-
|
|
|
- found:
|
|
|
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
|
|
|
-
|
|
|
- if ((!p_dev->instance) ||
|
|
|
- (p_dev->instance->state & DEV_CONFIG_PENDING)) {
|
|
|
- ret = -EAGAIN;
|
|
|
- goto err_put;
|
|
|
- }
|
|
|
-
|
|
|
- if (first)
|
|
|
- node = p_dev->instance->dev;
|
|
|
- else
|
|
|
- for (node = p_dev->instance->dev; node; node = node->next)
|
|
|
- if (node == bind_info->next)
|
|
|
- break;
|
|
|
- if (!node) {
|
|
|
- ret = -ENODEV;
|
|
|
- goto err_put;
|
|
|
- }
|
|
|
-
|
|
|
- strlcpy(bind_info->name, node->dev_name, DEV_NAME_LEN);
|
|
|
- bind_info->major = node->major;
|
|
|
- bind_info->minor = node->minor;
|
|
|
- bind_info->next = node->next;
|
|
|
-
|
|
|
- err_put:
|
|
|
- pcmcia_put_dev(p_dev);
|
|
|
- return (ret);
|
|
|
-} /* get_device_info */
|
|
|
-
|
|
|
-/*====================================================================*/
|
|
|
-
|
|
|
/* 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;
|
|
|
|
|
@@ -1133,433 +1142,58 @@ int pcmcia_deregister_client(client_handle_t handle)
|
|
|
} /* deregister_client */
|
|
|
EXPORT_SYMBOL(pcmcia_deregister_client);
|
|
|
|
|
|
-
|
|
|
-/*======================================================================
|
|
|
-
|
|
|
- The user-mode PC Card device interface
|
|
|
-
|
|
|
-======================================================================*/
|
|
|
-
|
|
|
-static int ds_open(struct inode *inode, struct file *file)
|
|
|
-{
|
|
|
- socket_t i = iminor(inode);
|
|
|
- struct pcmcia_bus_socket *s;
|
|
|
- user_info_t *user;
|
|
|
-
|
|
|
- ds_dbg(0, "ds_open(socket %d)\n", i);
|
|
|
-
|
|
|
- s = get_socket_info_by_nr(i);
|
|
|
- if (!s)
|
|
|
- return -ENODEV;
|
|
|
- s = pcmcia_get_bus_socket(s);
|
|
|
- if (!s)
|
|
|
- return -ENODEV;
|
|
|
-
|
|
|
- if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
|
|
|
- if (s->state & DS_SOCKET_BUSY) {
|
|
|
- pcmcia_put_bus_socket(s);
|
|
|
- return -EBUSY;
|
|
|
- }
|
|
|
- else
|
|
|
- s->state |= DS_SOCKET_BUSY;
|
|
|
- }
|
|
|
-
|
|
|
- user = kmalloc(sizeof(user_info_t), GFP_KERNEL);
|
|
|
- if (!user) {
|
|
|
- pcmcia_put_bus_socket(s);
|
|
|
- return -ENOMEM;
|
|
|
- }
|
|
|
- user->event_tail = user->event_head = 0;
|
|
|
- user->next = s->user;
|
|
|
- user->user_magic = USER_MAGIC;
|
|
|
- user->socket = s;
|
|
|
- s->user = user;
|
|
|
- file->private_data = user;
|
|
|
-
|
|
|
- if (s->state & DS_SOCKET_PRESENT)
|
|
|
- queue_event(user, CS_EVENT_CARD_INSERTION);
|
|
|
- return 0;
|
|
|
-} /* ds_open */
|
|
|
-
|
|
|
-/*====================================================================*/
|
|
|
-
|
|
|
-static int ds_release(struct inode *inode, struct file *file)
|
|
|
-{
|
|
|
- struct pcmcia_bus_socket *s;
|
|
|
- user_info_t *user, **link;
|
|
|
-
|
|
|
- ds_dbg(0, "ds_release(socket %d)\n", iminor(inode));
|
|
|
-
|
|
|
- user = file->private_data;
|
|
|
- if (CHECK_USER(user))
|
|
|
- goto out;
|
|
|
-
|
|
|
- s = user->socket;
|
|
|
-
|
|
|
- /* Unlink user data structure */
|
|
|
- if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
|
|
|
- s->state &= ~DS_SOCKET_BUSY;
|
|
|
- }
|
|
|
- file->private_data = NULL;
|
|
|
- for (link = &s->user; *link; link = &(*link)->next)
|
|
|
- if (*link == user) break;
|
|
|
- if (link == NULL)
|
|
|
- goto out;
|
|
|
- *link = user->next;
|
|
|
- user->user_magic = 0;
|
|
|
- kfree(user);
|
|
|
- pcmcia_put_bus_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;
|
|
|
- user_info_t *user;
|
|
|
- int ret;
|
|
|
-
|
|
|
- ds_dbg(2, "ds_read(socket %d)\n", iminor(file->f_dentry->d_inode));
|
|
|
-
|
|
|
- if (count < 4)
|
|
|
- return -EINVAL;
|
|
|
-
|
|
|
- user = file->private_data;
|
|
|
- if (CHECK_USER(user))
|
|
|
- return -EIO;
|
|
|
-
|
|
|
- s = user->socket;
|
|
|
- if (s->state & DS_SOCKET_DEAD)
|
|
|
- return -EIO;
|
|
|
-
|
|
|
- ret = wait_event_interruptible(s->queue, !queue_empty(user));
|
|
|
- if (ret == 0)
|
|
|
- ret = put_user(get_queued_event(user), (int __user *)buf) ? -EFAULT : 4;
|
|
|
-
|
|
|
- return ret;
|
|
|
-} /* ds_read */
|
|
|
-
|
|
|
-/*====================================================================*/
|
|
|
-
|
|
|
-static ssize_t ds_write(struct file *file, const char __user *buf,
|
|
|
- size_t count, loff_t *ppos)
|
|
|
-{
|
|
|
- ds_dbg(2, "ds_write(socket %d)\n", iminor(file->f_dentry->d_inode));
|
|
|
-
|
|
|
- if (count != 4)
|
|
|
- return -EINVAL;
|
|
|
- if ((file->f_flags & O_ACCMODE) == O_RDONLY)
|
|
|
- return -EBADF;
|
|
|
-
|
|
|
- return -EIO;
|
|
|
-} /* ds_write */
|
|
|
-
|
|
|
-/*====================================================================*/
|
|
|
-
|
|
|
-/* No kernel lock - fine */
|
|
|
-static u_int ds_poll(struct file *file, poll_table *wait)
|
|
|
-{
|
|
|
- struct pcmcia_bus_socket *s;
|
|
|
- user_info_t *user;
|
|
|
-
|
|
|
- ds_dbg(2, "ds_poll(socket %d)\n", iminor(file->f_dentry->d_inode));
|
|
|
-
|
|
|
- user = file->private_data;
|
|
|
- if (CHECK_USER(user))
|
|
|
- return POLLERR;
|
|
|
- s = user->socket;
|
|
|
- /*
|
|
|
- * We don't check for a dead socket here since that
|
|
|
- * will send cardmgr into an endless spin.
|
|
|
- */
|
|
|
- poll_wait(file, &s->queue, wait);
|
|
|
- if (!queue_empty(user))
|
|
|
- return POLLIN | POLLRDNORM;
|
|
|
- return 0;
|
|
|
-} /* ds_poll */
|
|
|
-
|
|
|
-/*====================================================================*/
|
|
|
-
|
|
|
-extern int pcmcia_adjust_resource_info(adjust_t *adj);
|
|
|
-
|
|
|
-static int ds_ioctl(struct inode * inode, struct file * file,
|
|
|
- u_int cmd, u_long arg)
|
|
|
-{
|
|
|
- struct pcmcia_bus_socket *s;
|
|
|
- void __user *uarg = (char __user *)arg;
|
|
|
- u_int size;
|
|
|
- int ret, err;
|
|
|
- ds_ioctl_arg_t *buf;
|
|
|
- user_info_t *user;
|
|
|
-
|
|
|
- ds_dbg(2, "ds_ioctl(socket %d, %#x, %#lx)\n", iminor(inode), cmd, arg);
|
|
|
-
|
|
|
- user = file->private_data;
|
|
|
- if (CHECK_USER(user))
|
|
|
- return -EIO;
|
|
|
-
|
|
|
- s = user->socket;
|
|
|
- if (s->state & DS_SOCKET_DEAD)
|
|
|
- return -EIO;
|
|
|
-
|
|
|
- size = (cmd & IOCSIZE_MASK) >> IOCSIZE_SHIFT;
|
|
|
- if (size > sizeof(ds_ioctl_arg_t)) return -EINVAL;
|
|
|
-
|
|
|
- /* Permission check */
|
|
|
- if (!(cmd & IOC_OUT) && !capable(CAP_SYS_ADMIN))
|
|
|
- return -EPERM;
|
|
|
-
|
|
|
- if (cmd & IOC_IN) {
|
|
|
- if (!access_ok(VERIFY_READ, uarg, size)) {
|
|
|
- ds_dbg(3, "ds_ioctl(): verify_read = %d\n", -EFAULT);
|
|
|
- return -EFAULT;
|
|
|
- }
|
|
|
- }
|
|
|
- if (cmd & IOC_OUT) {
|
|
|
- if (!access_ok(VERIFY_WRITE, uarg, size)) {
|
|
|
- ds_dbg(3, "ds_ioctl(): verify_write = %d\n", -EFAULT);
|
|
|
- return -EFAULT;
|
|
|
- }
|
|
|
- }
|
|
|
- buf = kmalloc(sizeof(ds_ioctl_arg_t), GFP_KERNEL);
|
|
|
- if (!buf)
|
|
|
- return -ENOMEM;
|
|
|
-
|
|
|
- err = ret = 0;
|
|
|
-
|
|
|
- if (cmd & IOC_IN) __copy_from_user((char *)buf, uarg, size);
|
|
|
-
|
|
|
- switch (cmd) {
|
|
|
- case DS_ADJUST_RESOURCE_INFO:
|
|
|
- ret = pcmcia_adjust_resource_info(&buf->adjust);
|
|
|
- break;
|
|
|
- case DS_GET_CARD_SERVICES_INFO:
|
|
|
- ret = pcmcia_get_card_services_info(&buf->servinfo);
|
|
|
- break;
|
|
|
- case DS_GET_CONFIGURATION_INFO:
|
|
|
- if (buf->config.Function &&
|
|
|
- (buf->config.Function >= s->parent->functions))
|
|
|
- ret = CS_BAD_ARGS;
|
|
|
- else
|
|
|
- ret = pccard_get_configuration_info(s->parent,
|
|
|
- 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);
|
|
|
- break;
|
|
|
- case DS_GET_NEXT_TUPLE:
|
|
|
- ret = pccard_get_next_tuple(s->parent, 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);
|
|
|
- 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);
|
|
|
- break;
|
|
|
- case DS_GET_STATUS:
|
|
|
- if (buf->status.Function &&
|
|
|
- (buf->status.Function >= s->parent->functions))
|
|
|
- ret = CS_BAD_ARGS;
|
|
|
- else
|
|
|
- ret = pccard_get_status(s->parent, 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);
|
|
|
- break;
|
|
|
- case DS_SUSPEND_CARD:
|
|
|
- ret = pcmcia_suspend_card(s->parent);
|
|
|
- break;
|
|
|
- case DS_RESUME_CARD:
|
|
|
- ret = pcmcia_resume_card(s->parent);
|
|
|
- break;
|
|
|
- case DS_EJECT_CARD:
|
|
|
- err = pcmcia_eject_card(s->parent);
|
|
|
- break;
|
|
|
- case DS_INSERT_CARD:
|
|
|
- err = pcmcia_insert_card(s->parent);
|
|
|
- break;
|
|
|
- case DS_ACCESS_CONFIGURATION_REGISTER:
|
|
|
- if ((buf->conf_reg.Action == CS_WRITE) && !capable(CAP_SYS_ADMIN)) {
|
|
|
- err = -EPERM;
|
|
|
- goto free_out;
|
|
|
- }
|
|
|
- if (buf->conf_reg.Function &&
|
|
|
- (buf->conf_reg.Function >= s->parent->functions))
|
|
|
- ret = CS_BAD_ARGS;
|
|
|
- else
|
|
|
- ret = pccard_access_configuration_register(s->parent,
|
|
|
- buf->conf_reg.Function, &buf->conf_reg);
|
|
|
- break;
|
|
|
- case DS_GET_FIRST_REGION:
|
|
|
- case DS_GET_NEXT_REGION:
|
|
|
- case DS_BIND_MTD:
|
|
|
- if (!capable(CAP_SYS_ADMIN)) {
|
|
|
- err = -EPERM;
|
|
|
- goto free_out;
|
|
|
- } else {
|
|
|
- static int printed = 0;
|
|
|
- if (!printed) {
|
|
|
- printk(KERN_WARNING "2.6. kernels use pcmciamtd instead of memory_cs.c and do not require special\n");
|
|
|
- printk(KERN_WARNING "MTD handling any more.\n");
|
|
|
- printed++;
|
|
|
- }
|
|
|
- }
|
|
|
- err = -EINVAL;
|
|
|
- goto free_out;
|
|
|
- break;
|
|
|
- case DS_GET_FIRST_WINDOW:
|
|
|
- ret = pcmcia_get_window(s->parent, &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,
|
|
|
- buf->win_info.handle->index + 1, &buf->win_info.window);
|
|
|
- break;
|
|
|
- case DS_GET_MEM_PAGE:
|
|
|
- ret = pcmcia_get_mem_page(buf->win_info.handle,
|
|
|
- &buf->win_info.map);
|
|
|
- break;
|
|
|
- case DS_REPLACE_CIS:
|
|
|
- ret = pcmcia_replace_cis(s->parent, &buf->cisdump);
|
|
|
- break;
|
|
|
- case DS_BIND_REQUEST:
|
|
|
- if (!capable(CAP_SYS_ADMIN)) {
|
|
|
- err = -EPERM;
|
|
|
- goto free_out;
|
|
|
- }
|
|
|
- err = bind_request(s, &buf->bind_info);
|
|
|
- break;
|
|
|
- case DS_GET_DEVICE_INFO:
|
|
|
- err = get_device_info(s, &buf->bind_info, 1);
|
|
|
- break;
|
|
|
- case DS_GET_NEXT_DEVICE:
|
|
|
- err = get_device_info(s, &buf->bind_info, 0);
|
|
|
- break;
|
|
|
- case DS_UNBIND_REQUEST:
|
|
|
- err = 0;
|
|
|
- break;
|
|
|
- default:
|
|
|
- err = -EINVAL;
|
|
|
- }
|
|
|
-
|
|
|
- if ((err == 0) && (ret != CS_SUCCESS)) {
|
|
|
- ds_dbg(2, "ds_ioctl: ret = %d\n", ret);
|
|
|
- switch (ret) {
|
|
|
- case CS_BAD_SOCKET: case CS_NO_CARD:
|
|
|
- err = -ENODEV; break;
|
|
|
- case CS_BAD_ARGS: case CS_BAD_ATTRIBUTE: case CS_BAD_IRQ:
|
|
|
- case CS_BAD_TUPLE:
|
|
|
- err = -EINVAL; break;
|
|
|
- case CS_IN_USE:
|
|
|
- err = -EBUSY; break;
|
|
|
- case CS_OUT_OF_RESOURCE:
|
|
|
- err = -ENOSPC; break;
|
|
|
- case CS_NO_MORE_ITEMS:
|
|
|
- err = -ENODATA; break;
|
|
|
- case CS_UNSUPPORTED_FUNCTION:
|
|
|
- err = -ENOSYS; break;
|
|
|
- default:
|
|
|
- err = -EIO; break;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- if (cmd & IOC_OUT) {
|
|
|
- if (__copy_to_user(uarg, (char *)buf, size))
|
|
|
- err = -EFAULT;
|
|
|
- }
|
|
|
-
|
|
|
-free_out:
|
|
|
- kfree(buf);
|
|
|
- return err;
|
|
|
-} /* ds_ioctl */
|
|
|
-
|
|
|
-/*====================================================================*/
|
|
|
-
|
|
|
-static struct file_operations ds_fops = {
|
|
|
- .owner = THIS_MODULE,
|
|
|
- .open = ds_open,
|
|
|
- .release = ds_release,
|
|
|
- .ioctl = ds_ioctl,
|
|
|
- .read = ds_read,
|
|
|
- .write = ds_write,
|
|
|
- .poll = ds_poll,
|
|
|
+static struct pcmcia_callback pcmcia_bus_callback = {
|
|
|
+ .owner = THIS_MODULE,
|
|
|
+ .event = ds_event,
|
|
|
+ .requery = pcmcia_bus_rescan,
|
|
|
};
|
|
|
|
|
|
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);
|
|
|
|
|
|
- init_waitqueue_head(&s->queue);
|
|
|
- INIT_LIST_HEAD(&s->devices_list);
|
|
|
-
|
|
|
- /* Set up hotline to Card Services */
|
|
|
- s->callback.owner = THIS_MODULE;
|
|
|
- s->callback.event = &ds_event;
|
|
|
- s->callback.resources_done = &pcmcia_card_add;
|
|
|
- socket->pcmcia = s;
|
|
|
+#ifdef CONFIG_PCMCIA_IOCTL
|
|
|
+ init_waitqueue_head(&socket->queue);
|
|
|
+#endif
|
|
|
+ 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, &s->callback);
|
|
|
+ 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);
|
|
|
}
|
|
|
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
-
|
|
|
static void pcmcia_bus_remove_socket(struct class_device *class_dev)
|
|
|
{
|
|
|
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;
|
|
|
}
|
|
@@ -1575,34 +1209,20 @@ static struct class_interface pcmcia_bus_interface = {
|
|
|
|
|
|
struct bus_type pcmcia_bus_type = {
|
|
|
.name = "pcmcia",
|
|
|
+ .hotplug = pcmcia_bus_hotplug,
|
|
|
.match = pcmcia_bus_match,
|
|
|
.dev_attrs = pcmcia_dev_attrs,
|
|
|
};
|
|
|
-EXPORT_SYMBOL(pcmcia_bus_type);
|
|
|
|
|
|
|
|
|
static int __init init_pcmcia_bus(void)
|
|
|
{
|
|
|
- int i;
|
|
|
-
|
|
|
spin_lock_init(&pcmcia_dev_list_lock);
|
|
|
|
|
|
bus_register(&pcmcia_bus_type);
|
|
|
class_interface_register(&pcmcia_bus_interface);
|
|
|
|
|
|
- /* Set up character device for user mode clients */
|
|
|
- i = register_chrdev(0, "pcmcia", &ds_fops);
|
|
|
- if (i < 0)
|
|
|
- printk(KERN_NOTICE "unable to find a free device # for "
|
|
|
- "Driver Services (error=%d)\n", i);
|
|
|
- else
|
|
|
- major_dev = i;
|
|
|
-
|
|
|
-#ifdef CONFIG_PROC_FS
|
|
|
- proc_pccard = proc_mkdir("pccard", proc_bus);
|
|
|
- if (proc_pccard)
|
|
|
- create_proc_read_entry("drivers",0,proc_pccard,proc_read_drivers,NULL);
|
|
|
-#endif
|
|
|
+ pcmcia_setup_ioctl();
|
|
|
|
|
|
return 0;
|
|
|
}
|
|
@@ -1612,48 +1232,13 @@ fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that
|
|
|
|
|
|
static void __exit exit_pcmcia_bus(void)
|
|
|
{
|
|
|
- class_interface_unregister(&pcmcia_bus_interface);
|
|
|
+ pcmcia_cleanup_ioctl();
|
|
|
|
|
|
-#ifdef CONFIG_PROC_FS
|
|
|
- if (proc_pccard) {
|
|
|
- remove_proc_entry("drivers", proc_pccard);
|
|
|
- remove_proc_entry("pccard", proc_bus);
|
|
|
- }
|
|
|
-#endif
|
|
|
- if (major_dev != -1)
|
|
|
- unregister_chrdev(major_dev, "pcmcia");
|
|
|
+ class_interface_unregister(&pcmcia_bus_interface);
|
|
|
|
|
|
bus_unregister(&pcmcia_bus_type);
|
|
|
}
|
|
|
module_exit(exit_pcmcia_bus);
|
|
|
|
|
|
|
|
|
-
|
|
|
-/* helpers for backwards-compatible functions */
|
|
|
-
|
|
|
-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)
|
|
|
-{
|
|
|
- struct device_driver *drv;
|
|
|
- struct pcmcia_driver *p_drv;
|
|
|
-
|
|
|
- drv = driver_find((char *) dev_info, &pcmcia_bus_type);
|
|
|
- if (!drv)
|
|
|
- return NULL;
|
|
|
-
|
|
|
- p_drv = container_of(drv, struct pcmcia_driver, drv);
|
|
|
-
|
|
|
- return (p_drv);
|
|
|
-}
|
|
|
-
|
|
|
MODULE_ALIAS("ds");
|