cs.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:70k
- /*======================================================================
- Kernel Card Services -- core services
- cs.c 1.271 2000/10/02 20:27:49
-
- The contents of this file are subject to the Mozilla Public
- License Version 1.1 (the "License"); you may not use this file
- except in compliance with the License. You may obtain a copy of
- the License at http://www.mozilla.org/MPL/
- Software distributed under the License is distributed on an "AS
- IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- implied. See the License for the specific language governing
- rights and limitations under the License.
- The initial developer of the original code is David A. Hinds
- <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
- are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
- Alternatively, the contents of this file may be used under the
- terms of the GNU General Public License version 2 (the "GPL"), in which
- case the provisions of the GPL are applicable instead of the
- above. If you wish to allow the use of your version of this file
- only under the terms of the GPL and not to allow others to use
- your version of this file under the MPL, indicate your decision
- by deleting the provisions above and replace them with the notice
- and other provisions required by the GPL. If you do not delete
- the provisions above, a recipient may use your version of this
- file under either the MPL or the GPL.
-
- ======================================================================*/
- #include <linux/module.h>
- #include <linux/init.h>
- #include <linux/kernel.h>
- #include <linux/config.h>
- #include <linux/string.h>
- #include <linux/major.h>
- #include <linux/errno.h>
- #include <linux/slab.h>
- #include <linux/mm.h>
- #include <linux/sched.h>
- #include <linux/timer.h>
- #include <linux/ioport.h>
- #include <linux/delay.h>
- #include <linux/proc_fs.h>
- #include <linux/pm.h>
- #include <linux/pci.h>
- #include <asm/system.h>
- #include <asm/irq.h>
- #define IN_CARD_SERVICES
- #include <pcmcia/version.h>
- #include <pcmcia/cs_types.h>
- #include <pcmcia/ss.h>
- #include <pcmcia/cs.h>
- #include <pcmcia/bulkmem.h>
- #include <pcmcia/cistpl.h>
- #include <pcmcia/cisreg.h>
- #include <pcmcia/bus_ops.h>
- #include "cs_internal.h"
- #ifdef CONFIG_PCI
- #define PCI_OPT " [pci]"
- #else
- #define PCI_OPT ""
- #endif
- #ifdef CONFIG_CARDBUS
- #define CB_OPT " [cardbus]"
- #else
- #define CB_OPT ""
- #endif
- #ifdef CONFIG_PM
- #define PM_OPT " [pm]"
- #else
- #define PM_OPT ""
- #endif
- #if !defined(CONFIG_CARDBUS) && !defined(CONFIG_PCI) && !defined(CONFIG_PM)
- #define OPTIONS " none"
- #else
- #define OPTIONS PCI_OPT CB_OPT PM_OPT
- #endif
- static const char *release = "Linux Kernel Card Services " CS_RELEASE;
- static const char *options = "options: " OPTIONS;
- /*====================================================================*/
- /* Module parameters */
- MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
- MODULE_DESCRIPTION("Linux Kernel Card Services " CS_RELEASE
- "n options:" OPTIONS);
- MODULE_LICENSE("Dual MPL/GPL");
- #define INT_MODULE_PARM(n, v) static int n = v; MODULE_PARM(n, "i")
- INT_MODULE_PARM(setup_delay, 10); /* centiseconds */
- INT_MODULE_PARM(resume_delay, 20); /* centiseconds */
- INT_MODULE_PARM(shutdown_delay, 3); /* centiseconds */
- INT_MODULE_PARM(vcc_settle, 40); /* centiseconds */
- INT_MODULE_PARM(reset_time, 10); /* usecs */
- INT_MODULE_PARM(unreset_delay, 10); /* centiseconds */
- INT_MODULE_PARM(unreset_check, 10); /* centiseconds */
- INT_MODULE_PARM(unreset_limit, 30); /* unreset_check's */
- /* Access speed for attribute memory windows */
- INT_MODULE_PARM(cis_speed, 300); /* ns */
- /* Access speed for IO windows */
- INT_MODULE_PARM(io_speed, 0); /* ns */
- /* Optional features */
- #ifdef CONFIG_PM
- INT_MODULE_PARM(do_apm, 1);
- #else
- INT_MODULE_PARM(do_apm, 0);
- #endif
- #ifdef PCMCIA_DEBUG
- INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG);
- static const char *version =
- "cs.c 1.279 2001/10/13 00:08:28 (David Hinds)";
- #endif
-
- /*====================================================================*/
- socket_state_t dead_socket = {
- 0, SS_DETECT, 0, 0, 0
- };
- /* Table of sockets */
- socket_t sockets = 0;
- socket_info_t *socket_table[MAX_SOCK];
- #ifdef CONFIG_PROC_FS
- struct proc_dir_entry *proc_pccard = NULL;
- #endif
- /*====================================================================*/
- /* String tables for error messages */
- typedef struct lookup_t {
- int key;
- char *msg;
- } lookup_t;
- static const lookup_t error_table[] = {
- { CS_SUCCESS, "Operation succeeded" },
- { CS_BAD_ADAPTER, "Bad adapter" },
- { CS_BAD_ATTRIBUTE, "Bad attribute", },
- { CS_BAD_BASE, "Bad base address" },
- { CS_BAD_EDC, "Bad EDC" },
- { CS_BAD_IRQ, "Bad IRQ" },
- { CS_BAD_OFFSET, "Bad offset" },
- { CS_BAD_PAGE, "Bad page number" },
- { CS_READ_FAILURE, "Read failure" },
- { CS_BAD_SIZE, "Bad size" },
- { CS_BAD_SOCKET, "Bad socket" },
- { CS_BAD_TYPE, "Bad type" },
- { CS_BAD_VCC, "Bad Vcc" },
- { CS_BAD_VPP, "Bad Vpp" },
- { CS_BAD_WINDOW, "Bad window" },
- { CS_WRITE_FAILURE, "Write failure" },
- { CS_NO_CARD, "No card present" },
- { CS_UNSUPPORTED_FUNCTION, "Usupported function" },
- { CS_UNSUPPORTED_MODE, "Unsupported mode" },
- { CS_BAD_SPEED, "Bad speed" },
- { CS_BUSY, "Resource busy" },
- { CS_GENERAL_FAILURE, "General failure" },
- { CS_WRITE_PROTECTED, "Write protected" },
- { CS_BAD_ARG_LENGTH, "Bad argument length" },
- { CS_BAD_ARGS, "Bad arguments" },
- { CS_CONFIGURATION_LOCKED, "Configuration locked" },
- { CS_IN_USE, "Resource in use" },
- { CS_NO_MORE_ITEMS, "No more items" },
- { CS_OUT_OF_RESOURCE, "Out of resource" },
- { CS_BAD_HANDLE, "Bad handle" },
- { CS_BAD_TUPLE, "Bad CIS tuple" }
- };
- #define ERROR_COUNT (sizeof(error_table)/sizeof(lookup_t))
- static const lookup_t service_table[] = {
- { AccessConfigurationRegister, "AccessConfigurationRegister" },
- { AddSocketServices, "AddSocketServices" },
- { AdjustResourceInfo, "AdjustResourceInfo" },
- { CheckEraseQueue, "CheckEraseQueue" },
- { CloseMemory, "CloseMemory" },
- { DeregisterClient, "DeregisterClient" },
- { DeregisterEraseQueue, "DeregisterEraseQueue" },
- { GetCardServicesInfo, "GetCardServicesInfo" },
- { GetClientInfo, "GetClientInfo" },
- { GetConfigurationInfo, "GetConfigurationInfo" },
- { GetEventMask, "GetEventMask" },
- { GetFirstClient, "GetFirstClient" },
- { GetFirstRegion, "GetFirstRegion" },
- { GetFirstTuple, "GetFirstTuple" },
- { GetNextClient, "GetNextClient" },
- { GetNextRegion, "GetNextRegion" },
- { GetNextTuple, "GetNextTuple" },
- { GetStatus, "GetStatus" },
- { GetTupleData, "GetTupleData" },
- { MapMemPage, "MapMemPage" },
- { ModifyConfiguration, "ModifyConfiguration" },
- { ModifyWindow, "ModifyWindow" },
- { OpenMemory, "OpenMemory" },
- { ParseTuple, "ParseTuple" },
- { ReadMemory, "ReadMemory" },
- { RegisterClient, "RegisterClient" },
- { RegisterEraseQueue, "RegisterEraseQueue" },
- { RegisterMTD, "RegisterMTD" },
- { ReleaseConfiguration, "ReleaseConfiguration" },
- { ReleaseIO, "ReleaseIO" },
- { ReleaseIRQ, "ReleaseIRQ" },
- { ReleaseWindow, "ReleaseWindow" },
- { RequestConfiguration, "RequestConfiguration" },
- { RequestIO, "RequestIO" },
- { RequestIRQ, "RequestIRQ" },
- { RequestSocketMask, "RequestSocketMask" },
- { RequestWindow, "RequestWindow" },
- { ResetCard, "ResetCard" },
- { SetEventMask, "SetEventMask" },
- { ValidateCIS, "ValidateCIS" },
- { WriteMemory, "WriteMemory" },
- { BindDevice, "BindDevice" },
- { BindMTD, "BindMTD" },
- { ReportError, "ReportError" },
- { SuspendCard, "SuspendCard" },
- { ResumeCard, "ResumeCard" },
- { EjectCard, "EjectCard" },
- { InsertCard, "InsertCard" },
- { ReplaceCIS, "ReplaceCIS" }
- };
- #define SERVICE_COUNT (sizeof(service_table)/sizeof(lookup_t))
- /*======================================================================
- These functions are just shorthand for the actual low-level drivers
- ======================================================================*/
- static int register_callback(socket_info_t *s, void (*handler)(void *, unsigned int), void * info)
- {
- return s->ss_entry->register_callback(s->sock, handler, info);
- }
- static int get_socket_status(socket_info_t *s, int *val)
- {
- return s->ss_entry->get_status(s->sock, val);
- }
- static int set_socket(socket_info_t *s, socket_state_t *state)
- {
- return s->ss_entry->set_socket(s->sock, state);
- }
- static int set_io_map(socket_info_t *s, struct pccard_io_map *io)
- {
- return s->ss_entry->set_io_map(s->sock, io);
- }
- static int set_mem_map(socket_info_t *s, struct pccard_mem_map *mem)
- {
- return s->ss_entry->set_mem_map(s->sock, mem);
- }
- static int suspend_socket(socket_info_t *s)
- {
- s->socket = dead_socket;
- return s->ss_entry->suspend(s->sock);
- }
- static int init_socket(socket_info_t *s)
- {
- s->socket = dead_socket;
- return s->ss_entry->init(s->sock);
- }
- /*====================================================================*/
- #if defined(CONFIG_PROC_FS) && defined(PCMCIA_DEBUG)
- static int proc_read_clients(char *buf, char **start, off_t pos,
- int count, int *eof, void *data)
- {
- socket_info_t *s = data;
- client_handle_t c;
- char *p = buf;
- for (c = s->clients; c; c = c->next)
- p += sprintf(p, "fn %x: '%s' [attr 0x%04x] [state 0x%04x]n",
- c->Function, c->dev_info, c->Attributes, c->state);
- return (p - buf);
- }
- #endif
- /*======================================================================
- Low-level PC Card interface drivers need to register with Card
- Services using these calls.
-
- ======================================================================*/
- static int setup_socket(socket_info_t *);
- static void shutdown_socket(socket_info_t *);
- static void reset_socket(socket_info_t *);
- static void unreset_socket(socket_info_t *);
- static void parse_events(void *info, u_int events);
- socket_info_t *pcmcia_register_socket (int slot,
- struct pccard_operations * ss_entry,
- int use_bus_pm)
- {
- socket_info_t *s;
- int i;
- DEBUG(0, "cs: pcmcia_register_socket(0x%p)n", ss_entry);
- s = kmalloc(sizeof(struct socket_info_t), GFP_KERNEL);
- if (!s)
- return NULL;
- memset(s, 0, sizeof(socket_info_t));
- s->ss_entry = ss_entry;
- s->sock = slot;
- /* base address = 0, map = 0 */
- s->cis_mem.flags = 0;
- s->cis_mem.speed = cis_speed;
- s->use_bus_pm = use_bus_pm;
- s->erase_busy.next = s->erase_busy.prev = &s->erase_busy;
- spin_lock_init(&s->lock);
-
- for (i = 0; i < sockets; i++)
- if (socket_table[i] == NULL) break;
- socket_table[i] = s;
- if (i == sockets) sockets++;
- init_socket(s);
- ss_entry->inquire_socket(slot, &s->cap);
- #ifdef CONFIG_PROC_FS
- if (proc_pccard) {
- char name[3];
- sprintf(name, "%02d", i);
- s->proc = proc_mkdir(name, proc_pccard);
- if (s->proc)
- ss_entry->proc_setup(slot, s->proc);
- #ifdef PCMCIA_DEBUG
- if (s->proc)
- create_proc_read_entry("clients", 0, s->proc,
- proc_read_clients, s);
- #endif
- }
- #endif
- return s;
- } /* pcmcia_register_socket */
- int register_ss_entry(int nsock, struct pccard_operations * ss_entry)
- {
- int ns;
- DEBUG(0, "cs: register_ss_entry(%d, 0x%p)n", nsock, ss_entry);
- for (ns = 0; ns < nsock; ns++) {
- pcmcia_register_socket (ns, ss_entry, 0);
- }
-
- return 0;
- } /* register_ss_entry */
- /*====================================================================*/
- void pcmcia_unregister_socket(socket_info_t *s)
- {
- int j, socket = -1;
- client_t *client;
- for (j = 0; j < MAX_SOCK; j++)
- if (socket_table [j] == s) {
- socket = j;
- break;
- }
- if (socket < 0)
- return;
- #ifdef CONFIG_PROC_FS
- if (proc_pccard) {
- char name[3];
- sprintf(name, "%02d", socket);
- #ifdef PCMCIA_DEBUG
- remove_proc_entry("clients", s->proc);
- #endif
- remove_proc_entry(name, proc_pccard);
- }
- #endif
- shutdown_socket(s);
- release_cis_mem(s);
- while (s->clients) {
- client = s->clients;
- s->clients = s->clients->next;
- kfree(client);
- }
- s->ss_entry = NULL;
- kfree(s);
- socket_table[socket] = NULL;
- for (j = socket; j < sockets-1; j++)
- socket_table[j] = socket_table[j+1];
- sockets--;
- } /* pcmcia_unregister_socket */
- void unregister_ss_entry(struct pccard_operations * ss_entry)
- {
- int i;
- for (i = sockets-1; i >= 0; i-- ) {
- socket_info_t *socket = socket_table[i];
- if (socket->ss_entry == ss_entry)
- pcmcia_unregister_socket (socket);
- }
- } /* unregister_ss_entry */
- /*======================================================================
- Shutdown_Socket() and setup_socket() are scheduled using add_timer
- calls by the main event handler when card insertion and removal
- events are received. Shutdown_Socket() unconfigures a socket and
- turns off socket power. Setup_socket() turns on socket power
- and resets the socket, in two stages.
- ======================================================================*/
- static void free_regions(memory_handle_t *list)
- {
- memory_handle_t tmp;
- while (*list != NULL) {
- tmp = *list;
- *list = tmp->info.next;
- tmp->region_magic = 0;
- kfree(tmp);
- }
- }
- static int send_event(socket_info_t *s, event_t event, int priority);
- /*
- * Sleep for n_cs centiseconds (1 cs = 1/100th of a second)
- */
- static void cs_sleep(unsigned int n_cs)
- {
- current->state = TASK_INTERRUPTIBLE;
- schedule_timeout( (n_cs * HZ + 99) / 100);
- }
- static void shutdown_socket(socket_info_t *s)
- {
- client_t **c;
-
- DEBUG(1, "cs: shutdown_socket(%p)n", s);
- /* Blank out the socket state */
- s->state &= SOCKET_PRESENT|SOCKET_SETUP_PENDING;
- init_socket(s);
- s->irq.AssignedIRQ = s->irq.Config = 0;
- s->lock_count = 0;
- s->cis_used = 0;
- if (s->fake_cis) {
- kfree(s->fake_cis);
- s->fake_cis = NULL;
- }
- /* Should not the socket be forced quiet as well? e.g. turn off Vcc */
- /* Without these changes, the socket is left hot, even though card-services */
- /* realizes that no card is in place. */
- s->socket.flags &= ~SS_OUTPUT_ENA;
- s->socket.Vpp = 0;
- s->socket.Vcc = 0;
- s->socket.io_irq = 0;
- set_socket(s, &s->socket);
- /* */
- #ifdef CONFIG_CARDBUS
- cb_release_cis_mem(s);
- cb_free(s);
- #endif
- s->functions = 0;
- if (s->config) {
- kfree(s->config);
- s->config = NULL;
- }
- for (c = &s->clients; *c; ) {
- if ((*c)->state & CLIENT_UNBOUND) {
- client_t *d = *c;
- *c = (*c)->next;
- kfree(d);
- } else {
- c = &((*c)->next);
- }
- }
- free_regions(&s->a_region);
- free_regions(&s->c_region);
- } /* shutdown_socket */
- /*
- * Return zero if we think the card isn't actually present
- */
- static int setup_socket(socket_info_t *s)
- {
- int val, ret;
- int setup_timeout = 100;
- /* Wait for "not pending" */
- for (;;) {
- get_socket_status(s, &val);
- if (!(val & SS_PENDING))
- break;
- if (--setup_timeout) {
- cs_sleep(10);
- continue;
- }
- printk(KERN_NOTICE "cs: socket %p voltage interrogation"
- " timed outn", s);
- ret = 0;
- goto out;
- }
- if (val & SS_DETECT) {
- DEBUG(1, "cs: setup_socket(%p): applying powern", s);
- s->state |= SOCKET_PRESENT;
- s->socket.flags &= SS_DEBOUNCED;
- if (val & SS_3VCARD)
- s->socket.Vcc = s->socket.Vpp = 33;
- else if (!(val & SS_XVCARD))
- s->socket.Vcc = s->socket.Vpp = 50;
- else {
- printk(KERN_NOTICE "cs: socket %p: unsupported "
- "voltage keyn", s);
- s->socket.Vcc = 0;
- }
- if (val & SS_CARDBUS) {
- s->state |= SOCKET_CARDBUS;
- #ifndef CONFIG_CARDBUS
- printk(KERN_NOTICE "cs: unsupported card type detected!n");
- #endif
- }
- set_socket(s, &s->socket);
- cs_sleep(vcc_settle);
- reset_socket(s);
- ret = 1;
- } else {
- DEBUG(0, "cs: setup_socket(%p): no card!n", s);
- ret = 0;
- }
- out:
- return ret;
- } /* setup_socket */
- /*======================================================================
- Reset_socket() and unreset_socket() handle hard resets. Resets
- have several causes: card insertion, a call to reset_socket, or
- recovery from a suspend/resume cycle. Unreset_socket() sends
- a CS event that matches the cause of the reset.
-
- ======================================================================*/
- static void reset_socket(socket_info_t *s)
- {
- DEBUG(1, "cs: resetting socket %pn", s);
- s->socket.flags |= SS_OUTPUT_ENA | SS_RESET;
- set_socket(s, &s->socket);
- udelay((long)reset_time);
- s->socket.flags &= ~SS_RESET;
- set_socket(s, &s->socket);
- cs_sleep(unreset_delay);
- unreset_socket(s);
- } /* reset_socket */
- #define EVENT_MASK
- (SOCKET_SETUP_PENDING|SOCKET_SUSPEND|SOCKET_RESET_PENDING)
- static void unreset_socket(socket_info_t *s)
- {
- int setup_timeout = unreset_limit;
- int val;
- /* Wait for "ready" */
- for (;;) {
- get_socket_status(s, &val);
- if (val & SS_READY)
- break;
- DEBUG(2, "cs: socket %d not ready yetn", s->sock);
- if (--setup_timeout) {
- cs_sleep(unreset_check);
- continue;
- }
- printk(KERN_NOTICE "cs: socket %p timed out during"
- " reset. Try increasing setup_delay.n", s);
- s->state &= ~EVENT_MASK;
- return;
- }
- DEBUG(1, "cs: reset done on socket %pn", s);
- if (s->state & SOCKET_SUSPEND) {
- s->state &= ~EVENT_MASK;
- if (verify_cis_cache(s) != 0)
- parse_events(s, SS_DETECT);
- else
- send_event(s, CS_EVENT_PM_RESUME, CS_EVENT_PRI_LOW);
- } else if (s->state & SOCKET_SETUP_PENDING) {
- #ifdef CONFIG_CARDBUS
- if (s->state & SOCKET_CARDBUS)
- cb_alloc(s);
- #endif
- send_event(s, CS_EVENT_CARD_INSERTION, CS_EVENT_PRI_LOW);
- s->state &= ~SOCKET_SETUP_PENDING;
- } else {
- send_event(s, CS_EVENT_CARD_RESET, CS_EVENT_PRI_LOW);
- if (s->reset_handle) {
- s->reset_handle->event_callback_args.info = NULL;
- EVENT(s->reset_handle, CS_EVENT_RESET_COMPLETE,
- CS_EVENT_PRI_LOW);
- }
- s->state &= ~EVENT_MASK;
- }
- } /* unreset_socket */
- /*======================================================================
- The central event handler. Send_event() sends an event to all
- valid clients. Parse_events() interprets the event bits from
- a card status change report. Do_shutdown() handles the high
- priority stuff associated with a card removal.
-
- ======================================================================*/
- static int send_event(socket_info_t *s, event_t event, int priority)
- {
- client_t *client = s->clients;
- int ret;
- DEBUG(1, "cs: send_event(sock %d, event %d, pri %d)n",
- s->sock, event, priority);
- ret = 0;
- for (; client; client = client->next) {
- if (client->state & (CLIENT_UNBOUND|CLIENT_STALE))
- continue;
- if (client->EventMask & event) {
- ret = EVENT(client, event, priority);
- if (ret != 0)
- return ret;
- }
- }
- return ret;
- } /* send_event */
- static void do_shutdown(socket_info_t *s)
- {
- client_t *client;
- if (s->state & SOCKET_SHUTDOWN_PENDING)
- return;
- s->state |= SOCKET_SHUTDOWN_PENDING;
- send_event(s, CS_EVENT_CARD_REMOVAL, CS_EVENT_PRI_HIGH);
- for (client = s->clients; client; client = client->next)
- if (!(client->Attributes & INFO_MASTER_CLIENT))
- client->state |= CLIENT_STALE;
- if (s->state & (SOCKET_SETUP_PENDING|SOCKET_RESET_PENDING)) {
- DEBUG(0, "cs: flushing pending setupn");
- s->state &= ~EVENT_MASK;
- }
- cs_sleep(shutdown_delay);
- s->state &= ~SOCKET_PRESENT;
- shutdown_socket(s);
- }
- static void parse_events(void *info, u_int events)
- {
- socket_info_t *s = info;
- if (events & SS_DETECT) {
- int status;
- get_socket_status(s, &status);
- /*
- * If our socket state indicates that a card is present and
- * either the socket has not been suspended (for some reason)
- * or the card has been removed, shut down the socket first.
- */
- if ((s->state & SOCKET_PRESENT) &&
- (!(s->state & SOCKET_SUSPEND) ||
- !(status & SS_DETECT)))
- do_shutdown(s);
- if (status & SS_DETECT) {
- if (s->state & SOCKET_SETUP_PENDING) {
- DEBUG(1, "cs: delaying pending setupn");
- return;
- }
- s->state |= SOCKET_SETUP_PENDING;
- if (s->state & SOCKET_SUSPEND)
- cs_sleep(resume_delay);
- else
- cs_sleep(setup_delay);
- s->socket.flags |= SS_DEBOUNCED;
- if (setup_socket(s) == 0)
- s->state &= ~SOCKET_SETUP_PENDING;
- s->socket.flags &= ~SS_DEBOUNCED;
- }
- }
- if (events & SS_BATDEAD)
- send_event(s, CS_EVENT_BATTERY_DEAD, CS_EVENT_PRI_LOW);
- if (events & SS_BATWARN)
- send_event(s, CS_EVENT_BATTERY_LOW, CS_EVENT_PRI_LOW);
- if (events & SS_READY) {
- if (!(s->state & SOCKET_RESET_PENDING))
- send_event(s, CS_EVENT_READY_CHANGE, CS_EVENT_PRI_LOW);
- else DEBUG(1, "cs: ready change during resetn");
- }
- } /* parse_events */
- /*======================================================================
- Another event handler, for power management events.
- This does not comply with the latest PC Card spec for handling
- power management events.
-
- ======================================================================*/
- void pcmcia_suspend_socket (socket_info_t *s)
- {
- if ((s->state & SOCKET_PRESENT) && !(s->state & SOCKET_SUSPEND)) {
- send_event(s, CS_EVENT_PM_SUSPEND, CS_EVENT_PRI_LOW);
- suspend_socket(s);
- s->state |= SOCKET_SUSPEND;
- }
- }
- void pcmcia_resume_socket (socket_info_t *s)
- {
- int stat;
- /* Do this just to reinitialize the socket */
- init_socket(s);
- get_socket_status(s, &stat);
- /* If there was or is a card here, we need to do something
- about it... but parse_events will sort it all out. */
- if ((s->state & SOCKET_PRESENT) || (stat & SS_DETECT))
- parse_events(s, SS_DETECT);
- }
- static int handle_pm_event(struct pm_dev *dev, pm_request_t rqst, void *data)
- {
- int i;
- socket_info_t *s;
- /* only for busses that don't suspend/resume slots directly */
- switch (rqst) {
- case PM_SUSPEND:
- DEBUG(1, "cs: received suspend notificationn");
- for (i = 0; i < sockets; i++) {
- s = socket_table [i];
- if (!s->use_bus_pm)
- pcmcia_suspend_socket (socket_table [i]);
- }
- break;
- case PM_RESUME:
- DEBUG(1, "cs: received resume notificationn");
- for (i = 0; i < sockets; i++) {
- s = socket_table [i];
- if (!s->use_bus_pm)
- pcmcia_resume_socket (socket_table [i]);
- }
- break;
- }
- return 0;
- } /* handle_pm_event */
- /*======================================================================
- Special stuff for managing IO windows, because they are scarce.
-
- ======================================================================*/
- static int alloc_io_space(socket_info_t *s, u_int attr, ioaddr_t *base,
- ioaddr_t num, u_int lines, char *name)
- {
- int i;
- ioaddr_t try, align;
- align = (*base) ? (lines ? 1<<lines : 0) : 1;
- if (align && (align < num)) {
- if (*base) {
- DEBUG(0, "odd IO request: num %04x align %04xn",
- num, align);
- align = 0;
- } else
- while (align && (align < num)) align <<= 1;
- }
- if (*base & ~(align-1)) {
- DEBUG(0, "odd IO request: base %04x align %04xn",
- *base, align);
- align = 0;
- }
- if ((s->cap.features & SS_CAP_STATIC_MAP) && s->cap.io_offset) {
- *base = s->cap.io_offset | (*base & 0x0fff);
- #ifdef CONFIG_S3C2410_SMDK
- for (i = 0; i < MAX_IO_WIN; i++) {
- if (s->io[i].NumPorts == 0) {
- s->io[i].Attributes = attr;
- s->io[i].BasePort = *base;
- s->io[i].NumPorts = s->io[i].InUse = num;
- return 0;
- }
- }
- return 1;
- #else
- return 0;
- #endif
- }
- /* Check for an already-allocated window that must conflict with
- what was asked for. It is a hack because it does not catch all
- potential conflicts, just the most obvious ones. */
- for (i = 0; i < MAX_IO_WIN; i++)
- if ((s->io[i].NumPorts != 0) &&
- ((s->io[i].BasePort & (align-1)) == *base))
- return 1;
- for (i = 0; i < MAX_IO_WIN; i++) {
- if (s->io[i].NumPorts == 0) {
- if (find_io_region(base, num, align, name, s) == 0) {
- s->io[i].Attributes = attr;
- s->io[i].BasePort = *base;
- s->io[i].NumPorts = s->io[i].InUse = num;
- break;
- } else
- return 1;
- } else if (s->io[i].Attributes != attr)
- continue;
- /* Try to extend top of window */
- try = s->io[i].BasePort + s->io[i].NumPorts;
- if ((*base == 0) || (*base == try))
- if (find_io_region(&try, num, 0, name, s) == 0) {
- *base = try;
- s->io[i].NumPorts += num;
- s->io[i].InUse += num;
- break;
- }
- /* Try to extend bottom of window */
- try = s->io[i].BasePort - num;
- if ((*base == 0) || (*base == try))
- if (find_io_region(&try, num, 0, name, s) == 0) {
- s->io[i].BasePort = *base = try;
- s->io[i].NumPorts += num;
- s->io[i].InUse += num;
- break;
- }
- }
- return (i == MAX_IO_WIN);
- } /* alloc_io_space */
- static void release_io_space(socket_info_t *s, ioaddr_t base,
- ioaddr_t num)
- {
- int i;
- if(!(s->cap.features & SS_CAP_STATIC_MAP))
- release_region(base, num);
- for (i = 0; i < MAX_IO_WIN; i++) {
- if ((s->io[i].BasePort <= base) &&
- (s->io[i].BasePort+s->io[i].NumPorts >= base+num)) {
- s->io[i].InUse -= num;
- /* Free the window if no one else is using it */
- if (s->io[i].InUse == 0)
- s->io[i].NumPorts = 0;
- }
- }
- }
- /*======================================================================
- Access_configuration_register() reads and writes configuration
- registers in attribute memory. Memory window 0 is reserved for
- this and the tuple reading services.
-
- ======================================================================*/
- int pcmcia_access_configuration_register(client_handle_t handle,
- conf_reg_t *reg)
- {
- socket_info_t *s;
- config_t *c;
- int addr;
- u_char val;
-
- if (CHECK_HANDLE(handle))
- return CS_BAD_HANDLE;
- s = SOCKET(handle);
- if (handle->Function == BIND_FN_ALL) {
- if (reg->Function >= s->functions)
- return CS_BAD_ARGS;
- c = &s->config[reg->Function];
- } else
- c = CONFIG(handle);
- if (!(c->state & CONFIG_LOCKED))
- return CS_CONFIGURATION_LOCKED;
- addr = (c->ConfigBase + reg->Offset) >> 1;
-
- switch (reg->Action) {
- case CS_READ:
- read_cis_mem(s, 1, addr, 1, &val);
- reg->Value = val;
- break;
- case CS_WRITE:
- val = reg->Value;
- write_cis_mem(s, 1, addr, 1, &val);
- break;
- default:
- return CS_BAD_ARGS;
- break;
- }
- return CS_SUCCESS;
- } /* access_configuration_register */
- /*======================================================================
- 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.
-
- ======================================================================*/
- int pcmcia_bind_device(bind_req_t *req)
- {
- client_t *client;
- socket_info_t *s;
- if (CHECK_SOCKET(req->Socket))
- return CS_BAD_SOCKET;
- s = SOCKET(req);
- client = (client_t *)kmalloc(sizeof(client_t), GFP_KERNEL);
- if (!client) return CS_OUT_OF_RESOURCE;
- memset(client, ' ', sizeof(client_t));
- client->client_magic = CLIENT_MAGIC;
- strncpy(client->dev_info, (char *)req->dev_info, DEV_NAME_LEN);
- client->Socket = req->Socket;
- client->Function = req->Function;
- client->state = CLIENT_UNBOUND;
- client->erase_busy.next = &client->erase_busy;
- client->erase_busy.prev = &client->erase_busy;
- init_waitqueue_head(&client->mtd_req);
- client->next = s->clients;
- s->clients = client;
- DEBUG(1, "cs: bind_device(): client 0x%p, sock %d, dev %sn",
- client, client->Socket, client->dev_info);
- return CS_SUCCESS;
- } /* bind_device */
- /*======================================================================
- Bind_mtd() associates a device driver with a particular memory
- region. It is normally called by Driver Services after it has
- identified a memory device type. An instance of the corresponding
- driver will then be able to register to control this region.
-
- ======================================================================*/
- int pcmcia_bind_mtd(mtd_bind_t *req)
- {
- socket_info_t *s;
- memory_handle_t region;
-
- if (CHECK_SOCKET(req->Socket))
- return CS_BAD_SOCKET;
- s = SOCKET(req);
-
- if (req->Attributes & REGION_TYPE_AM)
- region = s->a_region;
- else
- region = s->c_region;
-
- while (region) {
- if (region->info.CardOffset == req->CardOffset) break;
- region = region->info.next;
- }
- if (!region || (region->mtd != NULL))
- return CS_BAD_OFFSET;
- strncpy(region->dev_info, (char *)req->dev_info, DEV_NAME_LEN);
-
- DEBUG(1, "cs: bind_mtd(): attr 0x%x, offset 0x%x, dev %sn",
- req->Attributes, req->CardOffset, (char *)req->dev_info);
- return CS_SUCCESS;
- } /* bind_mtd */
- /*====================================================================*/
- int pcmcia_deregister_client(client_handle_t handle)
- {
- client_t **client;
- socket_info_t *s;
- memory_handle_t region;
- u_long flags;
- int i, sn;
-
- DEBUG(1, "cs: deregister_client(%p)n", handle);
- if (CHECK_HANDLE(handle))
- return CS_BAD_HANDLE;
- if (handle->state &
- (CLIENT_IRQ_REQ|CLIENT_IO_REQ|CLIENT_CONFIG_LOCKED))
- return CS_IN_USE;
- for (i = 0; i < MAX_WIN; i++)
- if (handle->state & CLIENT_WIN_REQ(i))
- return CS_IN_USE;
- /* Disconnect all MTD links */
- s = SOCKET(handle);
- if (handle->mtd_count) {
- for (region = s->a_region; region; region = region->info.next)
- if (region->mtd == handle) region->mtd = NULL;
- for (region = s->c_region; region; region = region->info.next)
- if (region->mtd == handle) region->mtd = NULL;
- }
-
- sn = handle->Socket; s = socket_table[sn];
- if ((handle->state & CLIENT_STALE) ||
- (handle->Attributes & INFO_MASTER_CLIENT)) {
- spin_lock_irqsave(&s->lock, flags);
- client = &s->clients;
- while ((*client) && ((*client) != handle))
- client = &(*client)->next;
- if (*client == NULL) {
- spin_unlock_irqrestore(&s->lock, flags);
- return CS_BAD_HANDLE;
- }
- *client = handle->next;
- handle->client_magic = 0;
- kfree(handle);
- spin_unlock_irqrestore(&s->lock, flags);
- } else {
- handle->state = CLIENT_UNBOUND;
- handle->mtd_count = 0;
- handle->event_handler = NULL;
- }
- if (--s->real_clients == 0)
- register_callback(s, NULL, NULL);
-
- return CS_SUCCESS;
- } /* deregister_client */
- /*====================================================================*/
- int pcmcia_get_configuration_info(client_handle_t handle,
- config_info_t *config)
- {
- socket_info_t *s;
- config_t *c;
-
- if (CHECK_HANDLE(handle))
- return CS_BAD_HANDLE;
- s = SOCKET(handle);
- if (!(s->state & SOCKET_PRESENT))
- return CS_NO_CARD;
- if (handle->Function == BIND_FN_ALL) {
- if (config->Function && (config->Function >= s->functions))
- return CS_BAD_ARGS;
- } else
- config->Function = handle->Function;
-
- #ifdef CONFIG_CARDBUS
- if (s->state & SOCKET_CARDBUS) {
- u_char fn = config->Function;
- memset(config, 0, sizeof(config_info_t));
- config->Function = fn;
- config->Vcc = s->socket.Vcc;
- config->Vpp1 = config->Vpp2 = s->socket.Vpp;
- config->Option = s->cap.cb_dev->subordinate->number;
- if (s->cb_config) {
- config->Attributes = CONF_VALID_CLIENT;
- config->IntType = INT_CARDBUS;
- config->AssignedIRQ = s->irq.AssignedIRQ;
- if (config->AssignedIRQ)
- config->Attributes |= CONF_ENABLE_IRQ;
- config->BasePort1 = s->io[0].BasePort;
- config->NumPorts1 = s->io[0].NumPorts;
- }
- return CS_SUCCESS;
- }
- #endif
-
- c = (s->config != NULL) ? &s->config[config->Function] : NULL;
-
- if ((c == NULL) || !(c->state & CONFIG_LOCKED)) {
- config->Attributes = 0;
- config->Vcc = s->socket.Vcc;
- config->Vpp1 = config->Vpp2 = s->socket.Vpp;
- return CS_SUCCESS;
- }
-
- /* !!! This is a hack !!! */
- memcpy(&config->Attributes, &c->Attributes, sizeof(config_t));
- config->Attributes |= CONF_VALID_CLIENT;
- config->CardValues = c->CardValues;
- config->IRQAttributes = c->irq.Attributes;
- config->AssignedIRQ = s->irq.AssignedIRQ;
- config->BasePort1 = c->io.BasePort1;
- config->NumPorts1 = c->io.NumPorts1;
- config->Attributes1 = c->io.Attributes1;
- config->BasePort2 = c->io.BasePort2;
- config->NumPorts2 = c->io.NumPorts2;
- config->Attributes2 = c->io.Attributes2;
- config->IOAddrLines = c->io.IOAddrLines;
-
- return CS_SUCCESS;
- } /* get_configuration_info */
- /*======================================================================
- Return information about this version of Card Services.
-
- ======================================================================*/
- int pcmcia_get_card_services_info(servinfo_t *info)
- {
- info->Signature[0] = 'C';
- info->Signature[1] = 'S';
- info->Count = sockets;
- info->Revision = CS_RELEASE_CODE;
- info->CSLevel = 0x0210;
- info->VendorString = (char *)release;
- return CS_SUCCESS;
- } /* get_card_services_info */
- /*======================================================================
- Note that get_first_client() *does* recognize the Socket field
- in the request structure.
-
- ======================================================================*/
- int pcmcia_get_first_client(client_handle_t *handle, client_req_t *req)
- {
- socket_t s;
- if (req->Attributes & CLIENT_THIS_SOCKET)
- s = req->Socket;
- else
- s = 0;
- if (CHECK_SOCKET(req->Socket))
- return CS_BAD_SOCKET;
- if (socket_table[s]->clients == NULL)
- return CS_NO_MORE_ITEMS;
- *handle = socket_table[s]->clients;
- return CS_SUCCESS;
- } /* get_first_client */
- /*====================================================================*/
- int pcmcia_get_next_client(client_handle_t *handle, client_req_t *req)
- {
- socket_info_t *s;
- if ((handle == NULL) || CHECK_HANDLE(*handle))
- return CS_BAD_HANDLE;
- if ((*handle)->next == NULL) {
- if (req->Attributes & CLIENT_THIS_SOCKET)
- return CS_NO_MORE_ITEMS;
- s = SOCKET(*handle);
- if (s->clients == NULL)
- return CS_NO_MORE_ITEMS;
- *handle = s->clients;
- } else
- *handle = (*handle)->next;
- return CS_SUCCESS;
- } /* get_next_client */
- /*====================================================================*/
- int pcmcia_get_window(window_handle_t *handle, int idx, win_req_t *req)
- {
- socket_info_t *s;
- window_t *win;
- int w;
- if (idx == 0)
- s = SOCKET((client_handle_t)*handle);
- else
- s = (*handle)->sock;
- if (!(s->state & SOCKET_PRESENT))
- return CS_NO_CARD;
- for (w = idx; w < MAX_WIN; w++)
- if (s->state & SOCKET_WIN_REQ(w)) break;
- if (w == MAX_WIN)
- return CS_NO_MORE_ITEMS;
- win = &s->win[w];
- req->Base = win->ctl.sys_start;
- req->Size = win->ctl.sys_stop - win->ctl.sys_start + 1;
- req->AccessSpeed = win->ctl.speed;
- req->Attributes = 0;
- if (win->ctl.flags & MAP_ATTRIB)
- req->Attributes |= WIN_MEMORY_TYPE_AM;
- if (win->ctl.flags & MAP_ACTIVE)
- req->Attributes |= WIN_ENABLE;
- if (win->ctl.flags & MAP_16BIT)
- req->Attributes |= WIN_DATA_WIDTH_16;
- if (win->ctl.flags & MAP_USE_WAIT)
- req->Attributes |= WIN_USE_WAIT;
- *handle = win;
- return CS_SUCCESS;
- } /* get_window */
- int pcmcia_get_first_window(window_handle_t *win, win_req_t *req)
- {
- if ((win == NULL) || ((*win)->magic != WINDOW_MAGIC))
- return CS_BAD_HANDLE;
- return pcmcia_get_window(win, 0, req);
- }
- int pcmcia_get_next_window(window_handle_t *win, win_req_t *req)
- {
- if ((win == NULL) || ((*win)->magic != WINDOW_MAGIC))
- return CS_BAD_HANDLE;
- return pcmcia_get_window(win, (*win)->index+1, req);
- }
- /*=====================================================================
- Return the PCI device associated with a card..
- ======================================================================*/
- #ifdef CONFIG_CARDBUS
- struct pci_bus *pcmcia_lookup_bus(client_handle_t handle)
- {
- socket_info_t *s;
- if (CHECK_HANDLE(handle))
- return NULL;
- s = SOCKET(handle);
- if (!(s->state & SOCKET_CARDBUS))
- return NULL;
- return s->cap.cb_dev->subordinate;
- }
- EXPORT_SYMBOL(pcmcia_lookup_bus);
- #endif
- /*======================================================================
- Get the current socket state bits. We don't support the latched
- SocketState yet: I haven't seen any point for it.
-
- ======================================================================*/
- int pcmcia_get_status(client_handle_t handle, cs_status_t *status)
- {
- socket_info_t *s;
- config_t *c;
- int val;
-
- if (CHECK_HANDLE(handle))
- return CS_BAD_HANDLE;
- s = SOCKET(handle);
- get_socket_status(s, &val);
- status->CardState = status->SocketState = 0;
- status->CardState |= (val & SS_DETECT) ? CS_EVENT_CARD_DETECT : 0;
- status->CardState |= (val & SS_CARDBUS) ? CS_EVENT_CB_DETECT : 0;
- status->CardState |= (val & SS_3VCARD) ? CS_EVENT_3VCARD : 0;
- status->CardState |= (val & SS_XVCARD) ? CS_EVENT_XVCARD : 0;
- if (s->state & SOCKET_SUSPEND)
- status->CardState |= CS_EVENT_PM_SUSPEND;
- if (!(s->state & SOCKET_PRESENT))
- return CS_NO_CARD;
- if (s->state & SOCKET_SETUP_PENDING)
- status->CardState |= CS_EVENT_CARD_INSERTION;
-
- /* Get info from the PRR, if necessary */
- if (handle->Function == BIND_FN_ALL) {
- if (status->Function && (status->Function >= s->functions))
- return CS_BAD_ARGS;
- c = (s->config != NULL) ? &s->config[status->Function] : NULL;
- } else
- c = CONFIG(handle);
- if ((c != NULL) && (c->state & CONFIG_LOCKED) &&
- (c->IntType & INT_MEMORY_AND_IO)) {
- u_char reg;
- if (c->Present & PRESENT_PIN_REPLACE) {
- read_cis_mem(s, 1, (c->ConfigBase+CISREG_PRR)>>1, 1, ®);
- status->CardState |=
- (reg & PRR_WP_STATUS) ? CS_EVENT_WRITE_PROTECT : 0;
- status->CardState |=
- (reg & PRR_READY_STATUS) ? CS_EVENT_READY_CHANGE : 0;
- status->CardState |=
- (reg & PRR_BVD2_STATUS) ? CS_EVENT_BATTERY_LOW : 0;
- status->CardState |=
- (reg & PRR_BVD1_STATUS) ? CS_EVENT_BATTERY_DEAD : 0;
- } else {
- /* No PRR? Then assume we're always ready */
- status->CardState |= CS_EVENT_READY_CHANGE;
- }
- if (c->Present & PRESENT_EXT_STATUS) {
- read_cis_mem(s, 1, (c->ConfigBase+CISREG_ESR)>>1, 1, ®);
- status->CardState |=
- (reg & ESR_REQ_ATTN) ? CS_EVENT_REQUEST_ATTENTION : 0;
- }
- return CS_SUCCESS;
- }
- status->CardState |=
- (val & SS_WRPROT) ? CS_EVENT_WRITE_PROTECT : 0;
- status->CardState |=
- (val & SS_BATDEAD) ? CS_EVENT_BATTERY_DEAD : 0;
- status->CardState |=
- (val & SS_BATWARN) ? CS_EVENT_BATTERY_LOW : 0;
- status->CardState |=
- (val & SS_READY) ? CS_EVENT_READY_CHANGE : 0;
- return CS_SUCCESS;
- } /* get_status */
- /*======================================================================
- Change the card address of an already open memory window.
-
- ======================================================================*/
- int pcmcia_get_mem_page(window_handle_t win, memreq_t *req)
- {
- if ((win == NULL) || (win->magic != WINDOW_MAGIC))
- return CS_BAD_HANDLE;
- req->Page = 0;
- req->CardOffset = win->ctl.card_start;
- return CS_SUCCESS;
- } /* get_mem_page */
- int pcmcia_map_mem_page(window_handle_t win, memreq_t *req)
- {
- socket_info_t *s;
- if ((win == NULL) || (win->magic != WINDOW_MAGIC))
- return CS_BAD_HANDLE;
- if (req->Page != 0)
- return CS_BAD_PAGE;
- s = win->sock;
- win->ctl.card_start = req->CardOffset;
- if (set_mem_map(s, &win->ctl) != 0)
- return CS_BAD_OFFSET;
- return CS_SUCCESS;
- } /* map_mem_page */
- /*======================================================================
- Modify a locked socket configuration
-
- ======================================================================*/
- int pcmcia_modify_configuration(client_handle_t handle,
- modconf_t *mod)
- {
- socket_info_t *s;
- config_t *c;
-
- if (CHECK_HANDLE(handle))
- return CS_BAD_HANDLE;
- s = SOCKET(handle); c = CONFIG(handle);
- if (!(s->state & SOCKET_PRESENT))
- return CS_NO_CARD;
- if (!(c->state & CONFIG_LOCKED))
- return CS_CONFIGURATION_LOCKED;
-
- if (mod->Attributes & CONF_IRQ_CHANGE_VALID) {
- if (mod->Attributes & CONF_ENABLE_IRQ) {
- c->Attributes |= CONF_ENABLE_IRQ;
- s->socket.io_irq = s->irq.AssignedIRQ;
- } else {
- c->Attributes &= ~CONF_ENABLE_IRQ;
- s->socket.io_irq = 0;
- }
- set_socket(s, &s->socket);
- }
- if (mod->Attributes & CONF_VCC_CHANGE_VALID)
- return CS_BAD_VCC;
- /* We only allow changing Vpp1 and Vpp2 to the same value */
- if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) &&
- (mod->Attributes & CONF_VPP2_CHANGE_VALID)) {
- if (mod->Vpp1 != mod->Vpp2)
- return CS_BAD_VPP;
- c->Vpp1 = c->Vpp2 = s->socket.Vpp = mod->Vpp1;
- if (set_socket(s, &s->socket))
- return CS_BAD_VPP;
- } else if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) ||
- (mod->Attributes & CONF_VPP2_CHANGE_VALID))
- return CS_BAD_VPP;
- return CS_SUCCESS;
- } /* modify_configuration */
- /*======================================================================
- Modify the attributes of a window returned by RequestWindow.
- ======================================================================*/
- int pcmcia_modify_window(window_handle_t win, modwin_t *req)
- {
- if ((win == NULL) || (win->magic != WINDOW_MAGIC))
- return CS_BAD_HANDLE;
- win->ctl.flags &= ~(MAP_ATTRIB|MAP_ACTIVE);
- if (req->Attributes & WIN_MEMORY_TYPE)
- win->ctl.flags |= MAP_ATTRIB;
- if (req->Attributes & WIN_ENABLE)
- win->ctl.flags |= MAP_ACTIVE;
- if (req->Attributes & WIN_DATA_WIDTH_16)
- win->ctl.flags |= MAP_16BIT;
- if (req->Attributes & WIN_USE_WAIT)
- win->ctl.flags |= MAP_USE_WAIT;
- win->ctl.speed = req->AccessSpeed;
- set_mem_map(win->sock, &win->ctl);
-
- return CS_SUCCESS;
- } /* modify_window */
- /*======================================================================
- 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.
-
- ======================================================================*/
- int pcmcia_register_client(client_handle_t *handle, client_reg_t *req)
- {
- client_t *client;
- socket_info_t *s;
- socket_t ns;
-
- /* Look for unbound client with matching dev_info */
- client = NULL;
- for (ns = 0; ns < sockets; ns++) {
- client = socket_table[ns]->clients;
- while (client != NULL) {
- if ((strcmp(client->dev_info, (char *)req->dev_info) == 0)
- && (client->state & CLIENT_UNBOUND)) break;
- client = client->next;
- }
- if (client != NULL) break;
- }
- if (client == NULL)
- return CS_OUT_OF_RESOURCE;
- s = socket_table[ns];
- if (++s->real_clients == 1) {
- int status;
- register_callback(s, &parse_events, s);
- get_socket_status(s, &status);
- if ((status & SS_DETECT) &&
- !(s->state & SOCKET_SETUP_PENDING)) {
- s->state |= SOCKET_SETUP_PENDING;
- if (setup_socket(s) == 0)
- s->state &= ~SOCKET_SETUP_PENDING;
- }
- }
- *handle = client;
- client->state &= ~CLIENT_UNBOUND;
- client->Socket = ns;
- client->Attributes = req->Attributes;
- 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;
- client->event_callback_args.bus = s->cap.bus;
- if (s->state & SOCKET_CARDBUS)
- client->state |= CLIENT_CARDBUS;
-
- if ((!(s->state & SOCKET_CARDBUS)) && (s->functions == 0) &&
- (client->Function != BIND_FN_ALL)) {
- cistpl_longlink_mfc_t mfc;
- if (read_tuple(client, CISTPL_LONGLINK_MFC, &mfc)
- == CS_SUCCESS)
- s->functions = mfc.nfn;
- else
- s->functions = 1;
- s->config = kmalloc(sizeof(config_t) * s->functions,
- GFP_KERNEL);
- if (!s->config)
- return CS_OUT_OF_RESOURCE;
- memset(s->config, 0, sizeof(config_t) * s->functions);
- }
-
- DEBUG(1, "cs: register_client(): client 0x%p, sock %d, dev %sn",
- client, client->Socket, client->dev_info);
- if (client->EventMask & CS_EVENT_REGISTRATION_COMPLETE)
- EVENT(client, CS_EVENT_REGISTRATION_COMPLETE, CS_EVENT_PRI_LOW);
- if ((socket_table[ns]->state & SOCKET_PRESENT) &&
- !(socket_table[ns]->state & SOCKET_SETUP_PENDING)) {
- if (client->EventMask & CS_EVENT_CARD_INSERTION)
- EVENT(client, CS_EVENT_CARD_INSERTION, CS_EVENT_PRI_LOW);
- else
- client->PendingEvents |= CS_EVENT_CARD_INSERTION;
- }
- return CS_SUCCESS;
- } /* register_client */
- /*====================================================================*/
- int pcmcia_release_configuration(client_handle_t handle)
- {
- pccard_io_map io = { 0, 0, 0, 0, 1 };
- socket_info_t *s;
- int i;
-
- if (CHECK_HANDLE(handle) ||
- !(handle->state & CLIENT_CONFIG_LOCKED))
- return CS_BAD_HANDLE;
- handle->state &= ~CLIENT_CONFIG_LOCKED;
- s = SOCKET(handle);
-
- #ifdef CONFIG_CARDBUS
- if (handle->state & CLIENT_CARDBUS) {
- cb_disable(s);
- s->lock_count = 0;
- return CS_SUCCESS;
- }
- #endif
-
- if (!(handle->state & CLIENT_STALE)) {
- config_t *c = CONFIG(handle);
- if (--(s->lock_count) == 0) {
- s->socket.flags = SS_OUTPUT_ENA; /* Is this correct? */
- s->socket.Vpp = 0;
- s->socket.io_irq = 0;
- set_socket(s, &s->socket);
- }
- if (c->state & CONFIG_IO_REQ)
- for (i = 0; i < MAX_IO_WIN; i++) {
- if (s->io[i].NumPorts == 0)
- continue;
- s->io[i].Config--;
- if (s->io[i].Config != 0)
- continue;
- io.map = i;
- set_io_map(s, &io);
- }
- c->state &= ~CONFIG_LOCKED;
- }
-
- return CS_SUCCESS;
- } /* release_configuration */
- /*======================================================================
- Release_io() releases the I/O ranges allocated by a client. This
- may be invoked some time after a card ejection has already dumped
- the actual socket configuration, so if the client is "stale", we
- don't bother checking the port ranges against the current socket
- values.
-
- ======================================================================*/
- int pcmcia_release_io(client_handle_t handle, io_req_t *req)
- {
- socket_info_t *s;
-
- if (CHECK_HANDLE(handle) || !(handle->state & CLIENT_IO_REQ))
- return CS_BAD_HANDLE;
- handle->state &= ~CLIENT_IO_REQ;
- s = SOCKET(handle);
-
- #ifdef CONFIG_CARDBUS
- if (handle->state & CLIENT_CARDBUS) {
- cb_release(s);
- return CS_SUCCESS;
- }
- #endif
-
- if (!(handle->state & CLIENT_STALE)) {
- config_t *c = CONFIG(handle);
- if (c->state & CONFIG_LOCKED)
- return CS_CONFIGURATION_LOCKED;
- if ((c->io.BasePort1 != req->BasePort1) ||
- (c->io.NumPorts1 != req->NumPorts1) ||
- (c->io.BasePort2 != req->BasePort2) ||
- (c->io.NumPorts2 != req->NumPorts2))
- return CS_BAD_ARGS;
- c->state &= ~CONFIG_IO_REQ;
- }
- release_io_space(s, req->BasePort1, req->NumPorts1);
- if (req->NumPorts2)
- release_io_space(s, req->BasePort2, req->NumPorts2);
-
- return CS_SUCCESS;
- } /* release_io */
- /*====================================================================*/
- int pcmcia_release_irq(client_handle_t handle, irq_req_t *req)
- {
- socket_info_t *s;
- if (CHECK_HANDLE(handle) || !(handle->state & CLIENT_IRQ_REQ))
- return CS_BAD_HANDLE;
- handle->state &= ~CLIENT_IRQ_REQ;
- s = SOCKET(handle);
-
- if (!(handle->state & CLIENT_STALE)) {
- config_t *c = CONFIG(handle);
- if (c->state & CONFIG_LOCKED)
- return CS_CONFIGURATION_LOCKED;
- if (c->irq.Attributes != req->Attributes)
- return CS_BAD_ATTRIBUTE;
- if (s->irq.AssignedIRQ != req->AssignedIRQ)
- return CS_BAD_IRQ;
- if (--s->irq.Config == 0) {
- c->state &= ~CONFIG_IRQ_REQ;
- s->irq.AssignedIRQ = 0;
- }
- }
-
- if (req->Attributes & IRQ_HANDLE_PRESENT) {
- bus_free_irq(s->cap.bus, req->AssignedIRQ, req->Instance);
- }
- #ifdef CONFIG_PCMCIA_PROBE
- if (req->AssignedIRQ != s->cap.pci_irq)
- undo_irq(req->Attributes, req->AssignedIRQ);
- #endif
-
- return CS_SUCCESS;
- } /* cs_release_irq */
- /*====================================================================*/
- int pcmcia_release_window(window_handle_t win)
- {
- socket_info_t *s;
-
- if ((win == NULL) || (win->magic != WINDOW_MAGIC))
- return CS_BAD_HANDLE;
- s = win->sock;
- if (!(win->handle->state & CLIENT_WIN_REQ(win->index)))
- return CS_BAD_HANDLE;
- /* Shut down memory window */
- win->ctl.flags &= ~MAP_ACTIVE;
- set_mem_map(s, &win->ctl);
- s->state &= ~SOCKET_WIN_REQ(win->index);
- /* Release system memory */
- if(!(s->cap.features & SS_CAP_STATIC_MAP))
- release_mem_resource(win->base, win->size);
- win->handle->state &= ~CLIENT_WIN_REQ(win->index);
- win->magic = 0;
-
- return CS_SUCCESS;
- } /* release_window */
- /*====================================================================*/
- int pcmcia_request_configuration(client_handle_t handle,
- config_req_t *req)
- {
- int i;
- u_int base;
- socket_info_t *s;
- config_t *c;
- pccard_io_map iomap;
-
- if (CHECK_HANDLE(handle))
- return CS_BAD_HANDLE;
- i = handle->Socket; s = socket_table[i];
- if (!(s->state & SOCKET_PRESENT))
- return CS_NO_CARD;
-
- #ifdef CONFIG_CARDBUS
- if (handle->state & CLIENT_CARDBUS) {
- if (!(req->IntType & INT_CARDBUS))
- return CS_UNSUPPORTED_MODE;
- if (s->lock_count != 0)
- return CS_CONFIGURATION_LOCKED;
- cb_enable(s);
- handle->state |= CLIENT_CONFIG_LOCKED;
- s->lock_count++;
- return CS_SUCCESS;
- }
- #endif
-
- if (req->IntType & INT_CARDBUS)
- return CS_UNSUPPORTED_MODE;
- c = CONFIG(handle);
- if (c->state & CONFIG_LOCKED)
- return CS_CONFIGURATION_LOCKED;
- /* Do power control. We don't allow changes in Vcc. */
- if (s->socket.Vcc != req->Vcc)
- return CS_BAD_VCC;
- if (req->Vpp1 != req->Vpp2)
- return CS_BAD_VPP;
- s->socket.Vpp = req->Vpp1;
- if (set_socket(s, &s->socket))
- return CS_BAD_VPP;
-
- c->Vcc = req->Vcc; c->Vpp1 = c->Vpp2 = req->Vpp1;
-
- /* Pick memory or I/O card, DMA mode, interrupt */
- c->IntType = req->IntType;
- c->Attributes = req->Attributes;
- if (req->IntType & INT_MEMORY_AND_IO)
- s->socket.flags |= SS_IOCARD;
- if (req->Attributes & CONF_ENABLE_DMA)
- s->socket.flags |= SS_DMA_MODE;
- if (req->Attributes & CONF_ENABLE_SPKR)
- s->socket.flags |= SS_SPKR_ENA;
- if (req->Attributes & CONF_ENABLE_IRQ)
- s->socket.io_irq = s->irq.AssignedIRQ;
- else
- s->socket.io_irq = 0;
- set_socket(s, &s->socket);
- s->lock_count++;
-
- /* Set up CIS configuration registers */
- base = c->ConfigBase = req->ConfigBase;
- c->Present = c->CardValues = req->Present;
- if (req->Present & PRESENT_COPY) {
- c->Copy = req->Copy;
- write_cis_mem(s, 1, (base + CISREG_SCR)>>1, 1, &c->Copy);
- }
- if (req->Present & PRESENT_OPTION) {
- if (s->functions == 1) {
- c->Option = req->ConfigIndex & COR_CONFIG_MASK;
- } else {
- c->Option = req->ConfigIndex & COR_MFC_CONFIG_MASK;
- c->Option |= COR_FUNC_ENA|COR_IREQ_ENA;
- if (req->Present & PRESENT_IOBASE_0)
- c->Option |= COR_ADDR_DECODE;
- }
- if (c->state & CONFIG_IRQ_REQ)
- if (!(c->irq.Attributes & IRQ_FORCED_PULSE))
- c->Option |= COR_LEVEL_REQ;
- write_cis_mem(s, 1, (base + CISREG_COR)>>1, 1, &c->Option);
- mdelay(40);
- }
- if (req->Present & PRESENT_STATUS) {
- c->Status = req->Status;
- write_cis_mem(s, 1, (base + CISREG_CCSR)>>1, 1, &c->Status);
- }
- if (req->Present & PRESENT_PIN_REPLACE) {
- c->Pin = req->Pin;
- write_cis_mem(s, 1, (base + CISREG_PRR)>>1, 1, &c->Pin);
- }
- if (req->Present & PRESENT_EXT_STATUS) {
- c->ExtStatus = req->ExtStatus;
- write_cis_mem(s, 1, (base + CISREG_ESR)>>1, 1, &c->ExtStatus);
- }
- if (req->Present & PRESENT_IOBASE_0) {
- u_char b = c->io.BasePort1 & 0xff;
- write_cis_mem(s, 1, (base + CISREG_IOBASE_0)>>1, 1, &b);
- b = (c->io.BasePort1 >> 8) & 0xff;
- write_cis_mem(s, 1, (base + CISREG_IOBASE_1)>>1, 1, &b);
- }
- if (req->Present & PRESENT_IOSIZE) {
- u_char b = c->io.NumPorts1 + c->io.NumPorts2 - 1;
- write_cis_mem(s, 1, (base + CISREG_IOSIZE)>>1, 1, &b);
- }
-
- /* Configure I/O windows */
- if (c->state & CONFIG_IO_REQ) {
- iomap.speed = io_speed;
- for (i = 0; i < MAX_IO_WIN; i++)
- if (s->io[i].NumPorts != 0) {
- iomap.map = i;
- iomap.flags = MAP_ACTIVE;
- switch (s->io[i].Attributes & IO_DATA_PATH_WIDTH) {
- case IO_DATA_PATH_WIDTH_16:
- iomap.flags |= MAP_16BIT; break;
- case IO_DATA_PATH_WIDTH_AUTO:
- iomap.flags |= MAP_AUTOSZ; break;
- default:
- break;
- }
- iomap.start = s->io[i].BasePort;
- iomap.stop = iomap.start + s->io[i].NumPorts - 1;
- set_io_map(s, &iomap);
- s->io[i].Config++;
- }
- }
-
- c->state |= CONFIG_LOCKED;
- handle->state |= CLIENT_CONFIG_LOCKED;
- return CS_SUCCESS;
- } /* request_configuration */
- /*======================================================================
-
- Request_io() reserves ranges of port addresses for a socket.
- I have not implemented range sharing or alias addressing.
-
- ======================================================================*/
- int pcmcia_request_io(client_handle_t handle, io_req_t *req)
- {
- socket_info_t *s;
- config_t *c;
-
- if (CHECK_HANDLE(handle))
- return CS_BAD_HANDLE;
- s = SOCKET(handle);
- if (!(s->state & SOCKET_PRESENT))
- return CS_NO_CARD;
- if (handle->state & CLIENT_CARDBUS) {
- #ifdef CONFIG_CARDBUS
- int ret = cb_config(s);
- if (ret == CS_SUCCESS)
- handle->state |= CLIENT_IO_REQ;
- return ret;
- #else
- return CS_UNSUPPORTED_FUNCTION;
- #endif
- }
- if (!req)
- return CS_UNSUPPORTED_MODE;
- c = CONFIG(handle);
- if (c->state & CONFIG_LOCKED)
- return CS_CONFIGURATION_LOCKED;
- if (c->state & CONFIG_IO_REQ)
- return CS_IN_USE;
- if (req->Attributes1 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS))
- return CS_BAD_ATTRIBUTE;
- if ((req->NumPorts2 > 0) &&
- (req->Attributes2 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS)))
- return CS_BAD_ATTRIBUTE;
- if (alloc_io_space(s, req->Attributes1, &req->BasePort1,
- req->NumPorts1, req->IOAddrLines,
- handle->dev_info))
- return CS_IN_USE;
- if (req->NumPorts2) {
- if (alloc_io_space(s, req->Attributes2, &req->BasePort2,
- req->NumPorts2, req->IOAddrLines,
- handle->dev_info)) {
- release_io_space(s, req->BasePort1, req->NumPorts1);
- return CS_IN_USE;
- }
- }
- c->io = *req;
- c->state |= CONFIG_IO_REQ;
- handle->state |= CLIENT_IO_REQ;
- return CS_SUCCESS;
- } /* request_io */
- /*======================================================================
- Request_irq() reserves an irq for this client.
- Also, since Linux only reserves irq's when they are actually
- hooked, we don't guarantee that an irq will still be available
- when the configuration is locked. Now that I think about it,
- there might be a way to fix this using a dummy handler.
-
- ======================================================================*/
- int pcmcia_request_irq(client_handle_t handle, irq_req_t *req)
- {
- socket_info_t *s;
- config_t *c;
- int ret = 0, irq = 0;
-
- if (CHECK_HANDLE(handle))
- return CS_BAD_HANDLE;
- s = SOCKET(handle);
- if (!(s->state & SOCKET_PRESENT))
- return CS_NO_CARD;
- c = CONFIG(handle);
- if (c->state & CONFIG_LOCKED)
- return CS_CONFIGURATION_LOCKED;
- if (c->state & CONFIG_IRQ_REQ)
- return CS_IN_USE;
-
- /* Short cut: if there are no ISA interrupts, then it is PCI */
- if (!s->cap.irq_mask) {
- irq = s->cap.pci_irq;
- ret = (irq) ? 0 : CS_IN_USE;
- #ifdef CONFIG_PCMCIA_PROBE
- } else if (s->irq.AssignedIRQ != 0) {
- /* If the interrupt is already assigned, it must match */
- irq = s->irq.AssignedIRQ;
- if (req->IRQInfo1 & IRQ_INFO2_VALID) {
- u_int mask = req->IRQInfo2 & s->cap.irq_mask;
- ret = ((mask >> irq) & 1) ? 0 : CS_BAD_ARGS;
- } else
- ret = ((req->IRQInfo1&IRQ_MASK) == irq) ? 0 : CS_BAD_ARGS;
- } else {
- ret = CS_IN_USE;
- if (req->IRQInfo1 & IRQ_INFO2_VALID) {
- u_int try, mask = req->IRQInfo2 & s->cap.irq_mask;
- for (try = 0; try < 2; try++) {
- for (irq = 0; irq < 32; irq++)
- if ((mask >> irq) & 1) {
- ret = try_irq(req->Attributes, irq, try);
- if (ret == 0) break;
- }
- if (ret == 0) break;
- }
- } else {
- irq = req->IRQInfo1 & IRQ_MASK;
- ret = try_irq(req->Attributes, irq, 1);
- }
- #endif
- }
- if (ret != 0) return ret;
- if (req->Attributes & IRQ_HANDLE_PRESENT) {
- if (bus_request_irq(s->cap.bus, irq, req->Handler,
- ((req->Attributes & IRQ_TYPE_DYNAMIC_SHARING) ||
- (s->functions > 1) ||
- (irq == s->cap.pci_irq)) ? SA_SHIRQ : 0,
- handle->dev_info, req->Instance))
- return CS_IN_USE;
- }
- c->irq.Attributes = req->Attributes;
- s->irq.AssignedIRQ = req->AssignedIRQ = irq;
- s->irq.Config++;
-
- c->state |= CONFIG_IRQ_REQ;
- handle->state |= CLIENT_IRQ_REQ;
- return CS_SUCCESS;
- } /* pcmcia_request_irq */
- /*======================================================================
- Request_window() establishes a mapping between card memory space
- and system memory space.
- ======================================================================*/
- int pcmcia_request_window(client_handle_t *handle, win_req_t *req, window_handle_t *wh)
- {
- socket_info_t *s;
- window_t *win;
- u_long align;
- int w;
-
- if (CHECK_HANDLE(*handle))
- return CS_BAD_HANDLE;
- s = SOCKET(*handle);
- if (!(s->state & SOCKET_PRESENT))
- return CS_NO_CARD;
- if (req->Attributes & (WIN_PAGED | WIN_SHARED))
- return CS_BAD_ATTRIBUTE;
- /* Window size defaults to smallest available */
- if (req->Size == 0)
- req->Size = s->cap.map_size;
- align = (((s->cap.features & SS_CAP_MEM_ALIGN) ||
- (req->Attributes & WIN_STRICT_ALIGN)) ?
- req->Size : s->cap.map_size);
- if (req->Size & (s->cap.map_size-1))
- return CS_BAD_SIZE;
- if ((req->Base && (s->cap.features & SS_CAP_STATIC_MAP)) ||
- (req->Base & (align-1)))
- return CS_BAD_BASE;
- if (req->Base)
- align = 0;
- /* Allocate system memory window */
- for (w = 0; w < MAX_WIN; w++)
- if (!(s->state & SOCKET_WIN_REQ(w))) break;
- if (w == MAX_WIN)
- return CS_OUT_OF_RESOURCE;
- win = &s->win[w];
- win->magic = WINDOW_MAGIC;
- win->index = w;
- win->handle = *handle;
- win->sock = s;
- win->base = req->Base;
- win->size = req->Size;
- if (!(s->cap.features & SS_CAP_STATIC_MAP) &&
- find_mem_region(&win->base, win->size, align,
- (req->Attributes & WIN_MAP_BELOW_1MB) ||
- !(s->cap.features & SS_CAP_PAGE_REGS),
- (*handle)->dev_info, s))
- return CS_IN_USE;
- (*handle)->state |= CLIENT_WIN_REQ(w);
- /* Configure the socket controller */
- win->ctl.map = w+1;
- win->ctl.flags = 0;
- win->ctl.speed = req->AccessSpeed;
- if (req->Attributes & WIN_MEMORY_TYPE)
- win->ctl.flags |= MAP_ATTRIB;
- if (req->Attributes & WIN_ENABLE)
- win->ctl.flags |= MAP_ACTIVE;
- if (req->Attributes & WIN_DATA_WIDTH_16)
- win->ctl.flags |= MAP_16BIT;
- if (req->Attributes & WIN_USE_WAIT)
- win->ctl.flags |= MAP_USE_WAIT;
- win->ctl.sys_start = win->base;
- win->ctl.sys_stop = win->base + win->size-1;
- win->ctl.card_start = 0;
- if (set_mem_map(s, &win->ctl) != 0)
- return CS_BAD_ARGS;
- s->state |= SOCKET_WIN_REQ(w);
- /* Return window handle */
- req->Base = win->ctl.sys_start;
- *wh = win;
-
- return CS_SUCCESS;
- } /* request_window */
- /*======================================================================
- I'm not sure which "reset" function this is supposed to use,
- but for now, it uses the low-level interface's reset, not the
- CIS register.
-
- ======================================================================*/
- int pcmcia_reset_card(client_handle_t handle, client_req_t *req)
- {
- int i, ret;
- socket_info_t *s;
-
- if (CHECK_HANDLE(handle))
- return CS_BAD_HANDLE;
- i = handle->Socket; s = socket_table[i];
- if (!(s->state & SOCKET_PRESENT))
- return CS_NO_CARD;
- if (s->state & SOCKET_RESET_PENDING)
- return CS_IN_USE;
- s->state |= SOCKET_RESET_PENDING;
- ret = send_event(s, CS_EVENT_RESET_REQUEST, CS_EVENT_PRI_LOW);
- if (ret != 0) {
- s->state &= ~SOCKET_RESET_PENDING;
- handle->event_callback_args.info = (void *)(u_long)ret;
- EVENT(handle, CS_EVENT_RESET_COMPLETE, CS_EVENT_PRI_LOW);
- } else {
- DEBUG(1, "cs: resetting socket %dn", i);
- send_event(s, CS_EVENT_RESET_PHYSICAL, CS_EVENT_PRI_LOW);
- s->reset_handle = handle;
- reset_socket(s);
- }
- return CS_SUCCESS;
- } /* reset_card */
- /*======================================================================
- These shut down or wake up a socket. They are sort of user
- initiated versions of the APM suspend and resume actions.
-
- ======================================================================*/
- int pcmcia_suspend_card(client_handle_t handle, client_req_t *req)
- {
- int i;
- socket_info_t *s;
-
- if (CHECK_HANDLE(handle))
- return CS_BAD_HANDLE;
- i = handle->Socket; s = socket_table[i];
- if (!(s->state & SOCKET_PRESENT))
- return CS_NO_CARD;
- if (s->state & SOCKET_SUSPEND)
- return CS_IN_USE;
- DEBUG(1, "cs: suspending socket %dn", i);
- send_event(s, CS_EVENT_PM_SUSPEND, CS_EVENT_PRI_LOW);
- suspend_socket(s);
- s->state |= SOCKET_SUSPEND;
- return CS_SUCCESS;
- } /* suspend_card */
- int pcmcia_resume_card(client_handle_t handle, client_req_t *req)
- {
- int i;
- socket_info_t *s;
-
- if (CHECK_HANDLE(handle))
- return CS_BAD_HANDLE;
- i = handle->Socket; s = socket_table[i];
- if (!(s->state & SOCKET_PRESENT))
- return CS_NO_CARD;
- if (!(s->state & SOCKET_SUSPEND))
- return CS_IN_USE;
- DEBUG(1, "cs: waking up socket %dn", i);
- setup_socket(s);
- return CS_SUCCESS;
- } /* resume_card */
- /*======================================================================
- These handle user requests to eject or insert a card.
-
- ======================================================================*/
- int pcmcia_eject_card(client_handle_t handle, client_req_t *req)
- {
- int i, ret;
- socket_info_t *s;
- u_long flags;
-
- if (CHECK_HANDLE(handle))
- return CS_BAD_HANDLE;
- i = handle->Socket; s = socket_table[i];
- if (!(s->state & SOCKET_PRESENT))
- return CS_NO_CARD;
- DEBUG(1, "cs: user eject request on socket %dn", i);
- ret = send_event(s, CS_EVENT_EJECTION_REQUEST, CS_EVENT_PRI_LOW);
- if (ret != 0)
- return ret;
- spin_lock_irqsave(&s->lock, flags);
- do_shutdown(s);
- spin_unlock_irqrestore(&s->lock, flags);
-
- return CS_SUCCESS;
-
- } /* eject_card */
- int pcmcia_insert_card(client_handle_t handle, client_req_t *req)
- {
- int i, status;
- socket_info_t *s;
- u_long flags;
-
- if (CHECK_HANDLE(handle))
- return CS_BAD_HANDLE;
- i = handle->Socket; s = socket_table[i];
- if (s->state & SOCKET_PRESENT)
- return CS_IN_USE;
- DEBUG(1, "cs: user insert request on socket %dn", i);
- spin_lock_irqsave(&s->lock, flags);
- if (!(s->state & SOCKET_SETUP_PENDING)) {
- s->state |= SOCKET_SETUP_PENDING;
- spin_unlock_irqrestore(&s->lock, flags);
- get_socket_status(s, &status);
- if ((status & SS_DETECT) == 0 || (setup_socket(s) == 0)) {
- s->state &= ~SOCKET_SETUP_PENDING;
- return CS_NO_CARD;
- }
- } else
- spin_unlock_irqrestore(&s->lock, flags);
- return CS_SUCCESS;
- } /* insert_card */
- /*======================================================================
- Maybe this should send a CS_EVENT_CARD_INSERTION event if we
- haven't sent one to this client yet?
-
- ======================================================================*/
- int pcmcia_set_event_mask(client_handle_t handle, eventmask_t *mask)
- {
- u_int events, bit;
- if (CHECK_HANDLE(handle))
- return CS_BAD_HANDLE;
- if (handle->Attributes & CONF_EVENT_MASK_VALID)
- return CS_BAD_SOCKET;
- handle->EventMask = mask->EventMask;
- events = handle->PendingEvents & handle->EventMask;
- handle->PendingEvents -= events;
- while (events != 0) {
- bit = ((events ^ (events-1)) + 1) >> 1;
- EVENT(handle, bit, CS_EVENT_PRI_LOW);
- events -= bit;
- }
- return CS_SUCCESS;
- } /* set_event_mask */
- /*====================================================================*/
- int pcmcia_report_error(client_handle_t handle, error_info_t *err)
- {
- int i;
- char *serv;
- if (CHECK_HANDLE(handle))
- printk(KERN_NOTICE);
- else
- printk(KERN_NOTICE "%s: ", handle->dev_info);
-
- for (i = 0; i < SERVICE_COUNT; i++)
- if (service_table[i].key == err->func) break;
- if (i < SERVICE_COUNT)
- serv = service_table[i].msg;
- else
- serv = "Unknown service number";
- for (i = 0; i < ERROR_COUNT; i++)
- if (error_table[i].key == err->retcode) break;
- if (i < ERROR_COUNT)
- printk("%s: %sn", serv, error_table[i].msg);
- else
- printk("%s: Unknown error code %#xn", serv, err->retcode);
- return CS_SUCCESS;
- } /* report_error */
- /*====================================================================*/
- int CardServices(int func, void *a1, void *a2, void *a3)
- {
- #ifdef PCMCIA_DEBUG
- if (pc_debug > 2) {
- int i;
- for (i = 0; i < SERVICE_COUNT; i++)
- if (service_table[i].key == func) break;
- if (i < SERVICE_COUNT)
- printk(KERN_DEBUG "cs: CardServices(%s, 0x%p, 0x%p)n",
- service_table[i].msg, a1, a2);
- else
- printk(KERN_DEBUG "cs: CardServices(Unknown func %d, "
- "0x%p, 0x%p)n", func, a1, a2);
- }
- #endif
- switch (func) {
- case AccessConfigurationRegister:
- return pcmcia_access_configuration_register(a1, a2); break;
- case AdjustResourceInfo:
- return pcmcia_adjust_resource_info(a1, a2); break;
- case CheckEraseQueue:
- return pcmcia_check_erase_queue(a1); break;
- case CloseMemory:
- return pcmcia_close_memory(a1); break;
- case CopyMemory:
- return pcmcia_copy_memory(a1, a2); break;
- case DeregisterClient:
- return pcmcia_deregister_client(a1); break;
- case DeregisterEraseQueue:
- return pcmcia_deregister_erase_queue(a1); break;
- case GetFirstClient:
- return pcmcia_get_first_client(a1, a2); break;
- case GetCardServicesInfo:
- return pcmcia_get_card_services_info(a1); break;
- case GetConfigurationInfo:
- return pcmcia_get_configuration_info(a1, a2); break;
- case GetNextClient:
- return pcmcia_get_next_client(a1, a2); break;
- case GetFirstRegion:
- return pcmcia_get_first_region(a1, a2); break;
- case GetFirstTuple:
- return pcmcia_get_first_tuple(a1, a2); break;
- case GetNextRegion:
- return pcmcia_get_next_region(a1, a2); break;
- case GetNextTuple:
- return pcmcia_get_next_tuple(a1, a2); break;
- case GetStatus:
- return pcmcia_get_status(a1, a2); break;
- case GetTupleData:
- return pcmcia_get_tuple_data(a1, a2); break;
- case MapMemPage:
- return pcmcia_map_mem_page(a1, a2); break;
- case ModifyConfiguration:
- return pcmcia_modify_configuration(a1, a2); break;
- case ModifyWindow:
- return pcmcia_modify_window(a1, a2); break;
- case OpenMemory:
- /* return pcmcia_open_memory(a1, a2); */
- {
- memory_handle_t m;
- int ret = pcmcia_open_memory(a1, a2, &m);
- *(memory_handle_t *)a1 = m;
- return ret;
- }
- break;
- case ParseTuple:
- return pcmcia_parse_tuple(a1, a2, a3); break;
- case ReadMemory:
- return pcmcia_read_memory(a1, a2, a3); break;
- case RegisterClient:
- return pcmcia_register_client(a1, a2); break;
- case RegisterEraseQueue:
- {
- eraseq_handle_t w;
- int ret = pcmcia_register_erase_queue(a1, a2, &w);
- *(eraseq_handle_t *)a1 = w;
- return ret;
- }
- break;
- /* return pcmcia_register_erase_queue(a1, a2); break; */
- return pcmcia_register_mtd(a1, a2); break;
- case ReleaseConfiguration:
- return pcmcia_release_configuration(a1); break;
- case ReleaseIO:
- return pcmcia_release_io(a1, a2); break;
- case ReleaseIRQ:
- return pcmcia_release_irq(a1, a2); break;
- case ReleaseWindow:
- return pcmcia_release_window(a1); break;
- case RequestConfiguration:
- return pcmcia_request_configuration(a1, a2); break;
- case RequestIO:
- return pcmcia_request_io(a1, a2); break;
- case RequestIRQ:
- return pcmcia_request_irq(a1, a2); break;
- case RequestWindow:
- {
- window_handle_t w;
- int ret = pcmcia_request_window(a1, a2, &w);
- *(window_handle_t *)a1 = w;
- return ret;
- }
- break;
- case ResetCard:
- return pcmcia_reset_card(a1, a2); break;
- case SetEventMask:
- return pcmcia_set_event_mask(a1, a2); break;
- case ValidateCIS:
- return pcmcia_validate_cis(a1, a2); break;
- case WriteMemory:
- return pcmcia_write_memory(a1, a2, a3); break;
- case BindDevice:
- return pcmcia_bind_device(a1); break;
- case BindMTD:
- return pcmcia_bind_mtd(a1); break;
- case ReportError:
- return pcmcia_report_error(a1, a2); break;
- case SuspendCard:
- return pcmcia_suspend_card(a1, a2); break;
- case ResumeCard:
- return pcmcia_resume_card(a1, a2); break;
- case EjectCard:
- return pcmcia_eject_card(a1, a2); break;
- case InsertCard:
- return pcmcia_insert_card(a1, a2); break;
- case ReplaceCIS:
- return pcmcia_replace_cis(a1, a2); break;
- case GetFirstWindow:
- return pcmcia_get_first_window(a1, a2); break;
- case GetNextWindow:
- return pcmcia_get_next_window(a1, a2); break;
- case GetMemPage:
- return pcmcia_get_mem_page(a1, a2); break;
- default:
- return CS_UNSUPPORTED_FUNCTION; break;
- }
-
- } /* CardServices */
- /*======================================================================
- OS-specific module glue goes here
-
- ======================================================================*/
- /* in alpha order */
- EXPORT_SYMBOL(pcmcia_access_configuration_register);
- EXPORT_SYMBOL(pcmcia_adjust_resource_info);
- EXPORT_SYMBOL(pcmcia_bind_device);
- EXPORT_SYMBOL(pcmcia_bind_mtd);
- EXPORT_SYMBOL(pcmcia_check_erase_queue);
- EXPORT_SYMBOL(pcmcia_close_memory);
- EXPORT_SYMBOL(pcmcia_copy_memory);
- EXPORT_SYMBOL(pcmcia_deregister_client);
- EXPORT_SYMBOL(pcmcia_deregister_erase_queue);
- EXPORT_SYMBOL(pcmcia_eject_card);
- EXPORT_SYMBOL(pcmcia_get_first_client);
- EXPORT_SYMBOL(pcmcia_get_card_services_info);
- EXPORT_SYMBOL(pcmcia_get_configuration_info);
- EXPORT_SYMBOL(pcmcia_get_mem_page);
- EXPORT_SYMBOL(pcmcia_get_next_client);
- EXPORT_SYMBOL(pcmcia_get_first_region);
- EXPORT_SYMBOL(pcmcia_get_first_tuple);
- EXPORT_SYMBOL(pcmcia_get_first_window);
- EXPORT_SYMBOL(pcmcia_get_next_region);
- EXPORT_SYMBOL(pcmcia_get_next_tuple);
- EXPORT_SYMBOL(pcmcia_get_next_window);
- EXPORT_SYMBOL(pcmcia_get_status);
- EXPORT_SYMBOL(pcmcia_get_tuple_data);
- EXPORT_SYMBOL(pcmcia_insert_card);
- EXPORT_SYMBOL(pcmcia_map_mem_page);
- EXPORT_SYMBOL(pcmcia_modify_configuration);
- EXPORT_SYMBOL(pcmcia_modify_window);
- EXPORT_SYMBOL(pcmcia_open_memory);
- EXPORT_SYMBOL(pcmcia_parse_tuple);
- EXPORT_SYMBOL(pcmcia_read_memory);
- EXPORT_SYMBOL(pcmcia_register_client);
- EXPORT_SYMBOL(pcmcia_register_erase_queue);
- EXPORT_SYMBOL(pcmcia_register_mtd);
- EXPORT_SYMBOL(pcmcia_release_configuration);
- EXPORT_SYMBOL(pcmcia_release_io);
- EXPORT_SYMBOL(pcmcia_release_irq);
- EXPORT_SYMBOL(pcmcia_release_window);
- EXPORT_SYMBOL(pcmcia_replace_cis);
- EXPORT_SYMBOL(pcmcia_report_error);
- EXPORT_SYMBOL(pcmcia_request_configuration);
- EXPORT_SYMBOL(pcmcia_request_io);
- EXPORT_SYMBOL(pcmcia_request_irq);
- EXPORT_SYMBOL(pcmcia_request_window);
- EXPORT_SYMBOL(pcmcia_reset_card);
- EXPORT_SYMBOL(pcmcia_resume_card);
- EXPORT_SYMBOL(pcmcia_set_event_mask);
- EXPORT_SYMBOL(pcmcia_suspend_card);
- EXPORT_SYMBOL(pcmcia_validate_cis);
- EXPORT_SYMBOL(pcmcia_write_memory);
- EXPORT_SYMBOL(dead_socket);
- EXPORT_SYMBOL(register_ss_entry);
- EXPORT_SYMBOL(unregister_ss_entry);
- EXPORT_SYMBOL(CardServices);
- EXPORT_SYMBOL(MTDHelperEntry);
- #ifdef CONFIG_PROC_FS
- EXPORT_SYMBOL(proc_pccard);
- #endif
- EXPORT_SYMBOL(pcmcia_register_socket);
- EXPORT_SYMBOL(pcmcia_unregister_socket);
- EXPORT_SYMBOL(pcmcia_suspend_socket);
- EXPORT_SYMBOL(pcmcia_resume_socket);
- static int __init init_pcmcia_cs(void)
- {
- printk(KERN_INFO "%sn", release);
- printk(KERN_INFO " %sn", options);
- DEBUG(0, "%sn", version);
- if (do_apm)
- pm_register(PM_SYS_DEV, PM_SYS_PCMCIA, handle_pm_event);
- #ifdef CONFIG_PROC_FS
- proc_pccard = proc_mkdir("pccard", proc_bus);
- #endif
- return 0;
- }
- static void __exit exit_pcmcia_cs(void)
- {
- printk(KERN_INFO "unloading Kernel Card Servicesn");
- #ifdef CONFIG_PROC_FS
- if (proc_pccard) {
- remove_proc_entry("pccard", proc_bus);
- }
- #endif
- if (do_apm)
- pm_unregister_all(handle_pm_event);
- release_resource_db();
- }
- module_init(init_pcmcia_cs);
- module_exit(exit_pcmcia_cs);
- /*====================================================================*/