+++ /dev/null
-/*
- * pcmcia_ioctl.c -- ioctl interface for cardmgr and cardctl
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * (C) 1999 David A. Hinds
- * (C) 2003 - 2004 Dominik Brodowski
- */
-
-/*
- * This file will go away soon.
- */
-
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/major.h>
-#include <linux/errno.h>
-#include <linux/ioctl.h>
-#include <linux/proc_fs.h>
-#include <linux/poll.h>
-#include <linux/pci.h>
-#include <linux/slab.h>
-#include <linux/seq_file.h>
-#include <linux/smp_lock.h>
-#include <linux/workqueue.h>
-
-#include <pcmcia/cs_types.h>
-#include <pcmcia/cs.h>
-#include <pcmcia/cistpl.h>
-#include <pcmcia/cisreg.h>
-#include <pcmcia/ds.h>
-#include <pcmcia/ss.h>
-
-#include "cs_internal.h"
-
-static int major_dev = -1;
-
-
-/* Device user information */
-#define MAX_EVENTS 32
-#define USER_MAGIC 0x7ea4
-#define CHECK_USER(u) \
- (((u) == NULL) || ((u)->user_magic != USER_MAGIC))
-
-typedef struct user_info_t {
- u_int user_magic;
- int event_head, event_tail;
- event_t event[MAX_EVENTS];
- struct user_info_t *next;
- struct pcmcia_socket *socket;
-} user_info_t;
-
-
-static struct pcmcia_device *get_pcmcia_device(struct pcmcia_socket *s,
- unsigned int function)
-{
- struct pcmcia_device *p_dev = NULL;
-
- mutex_lock(&s->ops_mutex);
- list_for_each_entry(p_dev, &s->devices_list, socket_device_list) {
- if (p_dev->func == function) {
- mutex_unlock(&s->ops_mutex);
- return pcmcia_get_dev(p_dev);
- }
- }
- mutex_unlock(&s->ops_mutex);
- 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;
-}
-
-
-#ifdef CONFIG_PROC_FS
-static struct proc_dir_entry *proc_pccard;
-
-static int proc_read_drivers_callback(struct device_driver *driver, void *_m)
-{
- struct seq_file *m = _m;
- struct pcmcia_driver *p_drv = container_of(driver,
- struct pcmcia_driver, drv);
-
- seq_printf(m, "%-24.24s 1 %d\n", p_drv->drv.name,
-#ifdef CONFIG_MODULE_UNLOAD
- (p_drv->owner) ? module_refcount(p_drv->owner) : 1
-#else
- 1
-#endif
- );
- return 0;
-}
-
-static int pccard_drivers_proc_show(struct seq_file *m, void *v)
-{
- return bus_for_each_drv(&pcmcia_bus_type, NULL,
- m, proc_read_drivers_callback);
-}
-
-static int pccard_drivers_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, pccard_drivers_proc_show, NULL);
-}
-
-static const struct file_operations pccard_drivers_proc_fops = {
- .owner = THIS_MODULE,
- .open = pccard_drivers_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-#endif
-
-
-#ifdef CONFIG_PCMCIA_PROBE
-
-static int adjust_irq(struct pcmcia_socket *s, adjust_t *adj)
-{
- int irq;
- u32 mask;
-
- irq = adj->resource.irq.IRQ;
- if ((irq < 0) || (irq > 15))
- return -EINVAL;
-
- if (adj->Action != REMOVE_MANAGED_RESOURCE)
- return 0;
-
- mask = 1 << irq;
-
- if (!(s->irq_mask & mask))
- return 0;
-
- s->irq_mask &= ~mask;
-
- return 0;
-}
-
-#else
-
-static inline int adjust_irq(struct pcmcia_socket *s, adjust_t *adj)
-{
- return 0;
-}
-
-#endif
-
-static int pcmcia_adjust_resource_info(adjust_t *adj)
-{
- struct pcmcia_socket *s;
- int ret = -ENOSYS;
-
- down_read(&pcmcia_socket_list_rwsem);
- list_for_each_entry(s, &pcmcia_socket_list, socket_list) {
-
- if (adj->Resource == RES_IRQ)
- ret = adjust_irq(s, adj);
-
- else if (s->resource_ops->add_io) {
- unsigned long begin, end;
-
- /* you can't use the old interface if the new
- * one was used before */
- mutex_lock(&s->ops_mutex);
- if ((s->resource_setup_new) &&
- !(s->resource_setup_old)) {
- mutex_unlock(&s->ops_mutex);
- continue;
- } else if (!(s->resource_setup_old))
- s->resource_setup_old = 1;
-
- switch (adj->Resource) {
- case RES_MEMORY_RANGE:
- begin = adj->resource.memory.Base;
- end = adj->resource.memory.Base + adj->resource.memory.Size - 1;
- if (s->resource_ops->add_mem)
- ret = s->resource_ops->add_mem(s, adj->Action, begin, end);
- case RES_IO_RANGE:
- begin = adj->resource.io.BasePort;
- end = adj->resource.io.BasePort + adj->resource.io.NumPorts - 1;
- if (s->resource_ops->add_io)
- ret = s->resource_ops->add_io(s, adj->Action, begin, end);
- }
- if (!ret) {
- /* as there's no way we know this is the
- * last call to adjust_resource_info, we
- * always need to assume this is the latest
- * one... */
- s->resource_setup_done = 1;
- }
- mutex_unlock(&s->ops_mutex);
- }
- }
- up_read(&pcmcia_socket_list_rwsem);
-
- return ret;
-}
-
-
-/** pcmcia_get_window
- */
-static int pcmcia_get_window(struct pcmcia_socket *s, window_handle_t *wh_out,
- window_handle_t wh, win_req_t *req)
-{
- pccard_mem_map *win;
- window_handle_t w;
-
- wh--;
- if (!s || !(s->state & SOCKET_PRESENT))
- return -ENODEV;
- if (wh >= MAX_WIN)
- return -EINVAL;
- for (w = wh; w < MAX_WIN; w++)
- if (s->state & SOCKET_WIN_REQ(w))
- break;
- if (w == MAX_WIN)
- return -EINVAL;
- win = &s->win[w];
- req->Base = win->res->start;
- req->Size = win->res->end - win->res->start + 1;
- req->AccessSpeed = win->speed;
- req->Attributes = 0;
- if (win->flags & MAP_ATTRIB)
- req->Attributes |= WIN_MEMORY_TYPE_AM;
- if (win->flags & MAP_ACTIVE)
- req->Attributes |= WIN_ENABLE;
- if (win->flags & MAP_16BIT)
- req->Attributes |= WIN_DATA_WIDTH_16;
- if (win->flags & MAP_USE_WAIT)
- req->Attributes |= WIN_USE_WAIT;
-
- *wh_out = w + 1;
- return 0;
-} /* pcmcia_get_window */
-
-
-/** pcmcia_get_mem_page
- *
- * Change the card address of an already open memory window.
- */
-static int pcmcia_get_mem_page(struct pcmcia_socket *skt, window_handle_t wh,
- memreq_t *req)
-{
- wh--;
- if (wh >= MAX_WIN)
- return -EINVAL;
-
- req->Page = 0;
- req->CardOffset = skt->win[wh].card_start;
- return 0;
-} /* pcmcia_get_mem_page */
-
-
-/** pccard_get_status
- *
- * Get the current socket state bits. We don't support the latched
- * SocketState yet: I haven't seen any point for it.
- */
-
-static int pccard_get_status(struct pcmcia_socket *s,
- struct pcmcia_device *p_dev,
- cs_status_t *status)
-{
- config_t *c;
- int val;
-
- s->ops->get_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 -ENODEV;
-
- c = (p_dev) ? p_dev->function_config : NULL;
-
- if ((c != NULL) && (c->state & CONFIG_LOCKED) &&
- (c->IntType & (INT_MEMORY_AND_IO | INT_ZOOMED_VIDEO))) {
- u_char reg;
- if (c->CardValues & PRESENT_PIN_REPLACE) {
- mutex_lock(&s->ops_mutex);
- pcmcia_read_cis_mem(s, 1, (c->ConfigBase+CISREG_PRR)>>1, 1, ®);
- mutex_unlock(&s->ops_mutex);
- 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->CardValues & PRESENT_EXT_STATUS) {
- mutex_lock(&s->ops_mutex);
- pcmcia_read_cis_mem(s, 1, (c->ConfigBase+CISREG_ESR)>>1, 1, ®);
- mutex_unlock(&s->ops_mutex);
- status->CardState |=
- (reg & ESR_REQ_ATTN) ? CS_EVENT_REQUEST_ATTENTION : 0;
- }
- return 0;
- }
- 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 0;
-} /* pccard_get_status */
-
-static int pccard_get_configuration_info(struct pcmcia_socket *s,
- struct pcmcia_device *p_dev,
- config_info_t *config)
-{
- config_t *c;
-
- if (!(s->state & SOCKET_PRESENT))
- return -ENODEV;
-
-
-#ifdef CONFIG_CARDBUS
- if (s->state & SOCKET_CARDBUS) {
- memset(config, 0, sizeof(config_info_t));
- config->Vcc = s->socket.Vcc;
- config->Vpp1 = config->Vpp2 = s->socket.Vpp;
- config->Option = s->cb_dev->subordinate->number;
- if (s->state & SOCKET_CARDBUS_CONFIG) {
- config->Attributes = CONF_VALID_CLIENT;
- config->IntType = INT_CARDBUS;
- config->AssignedIRQ = s->pcmcia_irq;
- if (config->AssignedIRQ)
- config->Attributes |= CONF_ENABLE_IRQ;
- if (s->io[0].res) {
- config->BasePort1 = s->io[0].res->start;
- config->NumPorts1 = s->io[0].res->end -
- config->BasePort1 + 1;
- }
- }
- return 0;
- }
-#endif
-
- if (p_dev) {
- c = p_dev->function_config;
- config->Function = p_dev->func;
- } else {
- c = NULL;
- config->Function = 0;
- }
-
- if ((c == NULL) || !(c->state & CONFIG_LOCKED)) {
- config->Attributes = 0;
- config->Vcc = s->socket.Vcc;
- config->Vpp1 = config->Vpp2 = s->socket.Vpp;
- return 0;
- }
-
- config->Attributes = c->Attributes | CONF_VALID_CLIENT;
- config->Vcc = s->socket.Vcc;
- config->Vpp1 = config->Vpp2 = s->socket.Vpp;
- config->IntType = c->IntType;
- config->ConfigBase = c->ConfigBase;
- config->Status = c->Status;
- config->Pin = c->Pin;
- config->Copy = c->Copy;
- config->Option = c->Option;
- config->ExtStatus = c->ExtStatus;
- config->Present = config->CardValues = c->CardValues;
- config->IRQAttributes = c->irq.Attributes;
- config->AssignedIRQ = s->pcmcia_irq;
- 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 0;
-} /* pccard_get_configuration_info */
-
-
-/*======================================================================
-
- 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;
-}
-
-void handle_event(struct pcmcia_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);
-}
-
-
-/*======================================================================
-
- 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_socket *s, bind_info_t *bind_info)
-{
- struct pcmcia_driver *p_drv;
- struct pcmcia_device *p_dev;
- int ret = 0;
-
- s = pcmcia_get_socket(s);
- if (!s)
- return -EINVAL;
-
- pr_debug("bind_request(%d, '%s')\n", s->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;
- }
-
- mutex_lock(&s->ops_mutex);
- 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". */
- mutex_unlock(&s->ops_mutex);
- bind_info->instance = p_dev;
- ret = -EBUSY;
- goto err_put_module;
- } else {
- /* the correct driver managed to bind
- * itself magically to the correct
- * device. */
- mutex_unlock(&s->ops_mutex);
- 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! */
- mutex_unlock(&s->ops_mutex);
- goto rescan;
- }
- }
- }
- mutex_unlock(&s->ops_mutex);
-
- p_dev = pcmcia_device_add(s, bind_info->function);
- if (!p_dev) {
- ret = -EIO;
- goto err_put_module;
- }
-
-rescan:
- p_dev->cardmgr = p_drv;
-
- /* if a driver is already running, we can abort */
- if (p_dev->dev.driver)
- goto err_put_module;
-
- /*
- * Prevent this racing with a card insertion.
- */
- mutex_lock(&s->skt_mutex);
- ret = bus_rescan_devices(&pcmcia_bus_type);
- mutex_unlock(&s->skt_mutex);
- if (ret)
- goto err_put_module;
-
- /* 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_socket(s);
-
- return ret;
-} /* bind_request */
-
-#ifdef CONFIG_CARDBUS
-
-static struct pci_bus *pcmcia_lookup_bus(struct pcmcia_socket *s)
-{
- if (!s || !(s->state & SOCKET_CARDBUS))
- return NULL;
-
- return s->cb_dev->subordinate;
-}
-#endif
-
-static int get_device_info(struct pcmcia_socket *s, bind_info_t *bind_info, int first)
-{
- struct pcmcia_device *p_dev;
- struct pcmcia_driver *p_drv;
- 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);
- 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
-
- mutex_lock(&s->ops_mutex);
- 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;
- }
- }
- mutex_unlock(&s->ops_mutex);
- return -ENODEV;
-
- found:
- mutex_unlock(&s->ops_mutex);
-
- p_drv = to_pcmcia_drv(p_dev->dev.driver);
- if (p_drv && !p_dev->_locked) {
- ret = -EAGAIN;
- goto err_put;
- }
-
- if (!first) {
- ret = -ENODEV;
- goto err_put;
- }
-
- strlcpy(bind_info->name, dev_name(&p_dev->dev), DEV_NAME_LEN);
- bind_info->next = NULL;
-
- err_put:
- pcmcia_put_dev(p_dev);
- return ret;
-} /* get_device_info */
-
-
-static int ds_open(struct inode *inode, struct file *file)
-{
- socket_t i = iminor(inode);
- struct pcmcia_socket *s;
- user_info_t *user;
- static int warning_printed;
- int ret = 0;
-
- pr_debug("ds_open(socket %d)\n", i);
-
- lock_kernel();
- s = pcmcia_get_socket_by_nr(i);
- if (!s) {
- ret = -ENODEV;
- goto out;
- }
- s = pcmcia_get_socket(s);
- if (!s) {
- ret = -ENODEV;
- goto out;
- }
-
- if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
- if (s->pcmcia_state.busy) {
- pcmcia_put_socket(s);
- ret = -EBUSY;
- goto out;
- }
- else
- s->pcmcia_state.busy = 1;
- }
-
- user = kmalloc(sizeof(user_info_t), GFP_KERNEL);
- if (!user) {
- pcmcia_put_socket(s);
- ret = -ENOMEM;
- goto out;
- }
- 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 (!warning_printed) {
- printk(KERN_INFO "pcmcia: Detected deprecated PCMCIA ioctl "
- "usage from process: %s.\n", current->comm);
- printk(KERN_INFO "pcmcia: This interface will soon be removed from "
- "the kernel; please expect breakage unless you upgrade "
- "to new tools.\n");
- printk(KERN_INFO "pcmcia: see http://www.kernel.org/pub/linux/"
- "utils/kernel/pcmcia/pcmcia.html for details.\n");
- warning_printed = 1;
- }
-
- if (atomic_read(&s->present))
- queue_event(user, CS_EVENT_CARD_INSERTION);
-out:
- unlock_kernel();
- return ret;
-} /* ds_open */
-
-/*====================================================================*/
-
-static int ds_release(struct inode *inode, struct file *file)
-{
- struct pcmcia_socket *s;
- user_info_t *user, **link;
-
- pr_debug("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->pcmcia_state.busy = 0;
-
- 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_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_socket *s;
- user_info_t *user;
- int ret;
-
- pr_debug("ds_read(socket %d)\n", iminor(file->f_path.dentry->d_inode));
-
- if (count < 4)
- return -EINVAL;
-
- user = file->private_data;
- if (CHECK_USER(user))
- return -EIO;
-
- s = user->socket;
- 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)
-{
- pr_debug("ds_write(socket %d)\n", iminor(file->f_path.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_socket *s;
- user_info_t *user;
-
- pr_debug("ds_poll(socket %d)\n", iminor(file->f_path.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 */
-
-/*====================================================================*/
-
-static int ds_ioctl(struct file *file, u_int cmd, u_long arg)
-{
- struct pcmcia_socket *s;
- void __user *uarg = (char __user *)arg;
- u_int size;
- int ret, err;
- ds_ioctl_arg_t *buf;
- user_info_t *user;
-
- pr_debug("ds_ioctl(socket %d, %#x, %#lx)\n", iminor(inode), cmd, arg);
-
- user = file->private_data;
- if (CHECK_USER(user))
- return -EIO;
-
- s = user->socket;
-
- 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)) {
- pr_debug("ds_ioctl(): verify_read = %d\n", -EFAULT);
- return -EFAULT;
- }
- }
- if (cmd & IOC_OUT) {
- if (!access_ok(VERIFY_WRITE, uarg, size)) {
- pr_debug("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) {
- if (__copy_from_user((char *)buf, uarg, size)) {
- err = -EFAULT;
- goto free_out;
- }
- }
-
- switch (cmd) {
- case DS_ADJUST_RESOURCE_INFO:
- ret = pcmcia_adjust_resource_info(&buf->adjust);
- break;
- case DS_GET_CONFIGURATION_INFO:
- if (buf->config.Function &&
- (buf->config.Function >= s->functions))
- ret = -EINVAL;
- else {
- struct pcmcia_device *p_dev = get_pcmcia_device(s, buf->config.Function);
- ret = pccard_get_configuration_info(s, p_dev, &buf->config);
- pcmcia_put_dev(p_dev);
- }
- break;
- case DS_GET_FIRST_TUPLE:
- mutex_lock(&s->skt_mutex);
- pcmcia_validate_mem(s);
- mutex_unlock(&s->skt_mutex);
- ret = pccard_get_first_tuple(s, BIND_FN_ALL, &buf->tuple);
- break;
- case DS_GET_NEXT_TUPLE:
- ret = pccard_get_next_tuple(s, BIND_FN_ALL, &buf->tuple);
- break;
- case DS_GET_TUPLE_DATA:
- buf->tuple.TupleData = buf->tuple_parse.data;
- buf->tuple.TupleDataMax = sizeof(buf->tuple_parse.data);
- ret = pccard_get_tuple_data(s, &buf->tuple);
- break;
- case DS_PARSE_TUPLE:
- buf->tuple.TupleData = buf->tuple_parse.data;
- ret = pcmcia_parse_tuple(&buf->tuple, &buf->tuple_parse.parse);
- break;
- case DS_RESET_CARD:
- ret = pcmcia_reset_card(s);
- break;
- case DS_GET_STATUS:
- if (buf->status.Function &&
- (buf->status.Function >= s->functions))
- ret = -EINVAL;
- else {
- struct pcmcia_device *p_dev = get_pcmcia_device(s, buf->status.Function);
- ret = pccard_get_status(s, p_dev, &buf->status);
- pcmcia_put_dev(p_dev);
- }
- break;
- case DS_VALIDATE_CIS:
- mutex_lock(&s->skt_mutex);
- pcmcia_validate_mem(s);
- mutex_unlock(&s->skt_mutex);
- ret = pccard_validate_cis(s, &buf->cisinfo.Chains);
- break;
- case DS_SUSPEND_CARD:
- pcmcia_parse_uevents(s, PCMCIA_UEVENT_SUSPEND);
- break;
- case DS_RESUME_CARD:
- pcmcia_parse_uevents(s, PCMCIA_UEVENT_RESUME);
- break;
- case DS_EJECT_CARD:
- pcmcia_parse_uevents(s, PCMCIA_UEVENT_EJECT);
- break;
- case DS_INSERT_CARD:
- pcmcia_parse_uevents(s, PCMCIA_UEVENT_INSERT);
- break;
- case DS_ACCESS_CONFIGURATION_REGISTER:
- if ((buf->conf_reg.Action == CS_WRITE) && !capable(CAP_SYS_ADMIN)) {
- err = -EPERM;
- goto free_out;
- }
-
- ret = -EINVAL;
-
- if (!(buf->conf_reg.Function &&
- (buf->conf_reg.Function >= s->functions))) {
- struct pcmcia_device *p_dev = get_pcmcia_device(s, buf->conf_reg.Function);
- if (p_dev) {
- ret = pcmcia_access_configuration_register(p_dev, &buf->conf_reg);
- pcmcia_put_dev(p_dev);
- }
- }
- 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 {
- printk_once(KERN_WARNING
- "2.6. kernels use pcmciamtd instead of memory_cs.c and do not require special\n");
- printk_once(KERN_WARNING "MTD handling any more.\n");
- }
- err = -EINVAL;
- goto free_out;
- break;
- case DS_GET_FIRST_WINDOW:
- ret = pcmcia_get_window(s, &buf->win_info.handle, 1,
- &buf->win_info.window);
- break;
- case DS_GET_NEXT_WINDOW:
- ret = pcmcia_get_window(s, &buf->win_info.handle,
- buf->win_info.handle + 1, &buf->win_info.window);
- break;
- case DS_GET_MEM_PAGE:
- ret = pcmcia_get_mem_page(s, buf->win_info.handle,
- &buf->win_info.map);
- break;
- case DS_REPLACE_CIS:
- ret = pcmcia_replace_cis(s, buf->cisdump.Data, buf->cisdump.Length);
- 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 != 0)) {
- pr_debug("ds_ioctl: ret = %d\n", ret);
- switch (ret) {
- case -ENODEV:
- case -EINVAL:
- case -EBUSY:
- case -ENOSYS:
- err = ret;
- break;
- case -ENOMEM:
- err = -ENOSPC; break;
- case -ENOSPC:
- err = -ENODATA; 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 long ds_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
- int ret;
-
- lock_kernel();
- ret = ds_ioctl(file, cmd, arg);
- unlock_kernel();
-
- return ret;
-}
-
-
-/*====================================================================*/
-
-static const struct file_operations ds_fops = {
- .owner = THIS_MODULE,
- .open = ds_open,
- .release = ds_release,
- .unlocked_ioctl = ds_unlocked_ioctl,
- .read = ds_read,
- .write = ds_write,
- .poll = ds_poll,
-};
-
-void __init pcmcia_setup_ioctl(void)
-{
- int i;
-
- /* 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("bus/pccard", NULL);
- if (proc_pccard)
- proc_create("drivers", 0, proc_pccard, &pccard_drivers_proc_fops);
-#endif
-}
-
-
-void __exit pcmcia_cleanup_ioctl(void)
-{
-#ifdef CONFIG_PROC_FS
- if (proc_pccard) {
- remove_proc_entry("drivers", proc_pccard);
- remove_proc_entry("bus/pccard", NULL);
- }
-#endif
- if (major_dev != -1)
- unregister_chrdev(major_dev, "pcmcia");
-}
u64 dma_mask;
struct device dev;
-#ifdef CONFIG_PCMCIA_IOCTL
- /* device driver wanted by cardmgr */
- struct pcmcia_driver *cardmgr;
-#endif
-
/* data private to drivers */
void *priv;
};
#endif /* __KERNEL__ */
-
-
-/* Below, there are only definitions which are used by
- * - the PCMCIA ioctl
- * - deprecated PCMCIA userspace tools only
- *
- * here be dragons ... here be dragons ... here be dragons ... here be drag
- */
-
-#if defined(CONFIG_PCMCIA_IOCTL) || !defined(__KERNEL__)
-
-#if defined(__arm__) || defined(__mips__) || defined(__avr32__) || \
- defined(__bfin__)
-/* This (ioaddr_t) is exposed to userspace & hence cannot be changed. */
-typedef u_int ioaddr_t;
-#else
-typedef u_short ioaddr_t;
-#endif
-
-/* for AdjustResourceInfo */
-typedef struct adjust_t {
- u_int Action;
- u_int Resource;
- u_int Attributes;
- union {
- struct memory {
- u_long Base;
- u_long Size;
- } memory;
- struct io {
- ioaddr_t BasePort;
- ioaddr_t NumPorts;
- u_int IOAddrLines;
- } io;
- struct irq {
- u_int IRQ;
- } irq;
- } resource;
-} adjust_t;
-
-/* Action field */
-#define REMOVE_MANAGED_RESOURCE 1
-#define ADD_MANAGED_RESOURCE 2
-#define GET_FIRST_MANAGED_RESOURCE 3
-#define GET_NEXT_MANAGED_RESOURCE 4
-/* Resource field */
-#define RES_MEMORY_RANGE 1
-#define RES_IO_RANGE 2
-#define RES_IRQ 3
-/* Attribute field */
-#define RES_IRQ_TYPE 0x03
-#define RES_IRQ_TYPE_EXCLUSIVE 0
-#define RES_IRQ_TYPE_TIME 1
-#define RES_IRQ_TYPE_DYNAMIC 2
-#define RES_IRQ_CSC 0x04
-#define RES_SHARED 0x08
-#define RES_RESERVED 0x10
-#define RES_ALLOCATED 0x20
-#define RES_REMOVED 0x40
-
-
-typedef struct tuple_parse_t {
- tuple_t tuple;
- cisdata_t data[255];
- cisparse_t parse;
-} tuple_parse_t;
-
-typedef struct win_info_t {
- window_handle_t handle;
- win_req_t window;
- memreq_t map;
-} win_info_t;
-
-typedef struct bind_info_t {
- dev_info_t dev_info;
- u_char function;
- struct pcmcia_device *instance;
- char name[DEV_NAME_LEN];
- u_short major, minor;
- void *next;
-} bind_info_t;
-
-typedef struct mtd_info_t {
- dev_info_t dev_info;
- u_int Attributes;
- u_int CardOffset;
-} mtd_info_t;
-
-typedef struct region_info_t {
- u_int Attributes;
- u_int CardOffset;
- u_int RegionSize;
- u_int AccessSpeed;
- u_int BlockSize;
- u_int PartMultiple;
- u_char JedecMfr, JedecInfo;
- memory_handle_t next;
-} region_info_t;
-
-#define REGION_TYPE 0x0001
-#define REGION_TYPE_CM 0x0000
-#define REGION_TYPE_AM 0x0001
-#define REGION_PREFETCH 0x0008
-#define REGION_CACHEABLE 0x0010
-#define REGION_BAR_MASK 0xe000
-#define REGION_BAR_SHIFT 13
-
-/* For ReplaceCIS */
-typedef struct cisdump_t {
- u_int Length;
- cisdata_t Data[CISTPL_MAX_CIS_SIZE];
-} cisdump_t;
-
-/* for GetConfigurationInfo */
-typedef struct config_info_t {
- u_char Function;
- u_int Attributes;
- u_int Vcc, Vpp1, Vpp2;
- u_int IntType;
- u_int ConfigBase;
- u_char Status, Pin, Copy, Option, ExtStatus;
- u_int Present;
- u_int CardValues;
- u_int AssignedIRQ;
- u_int IRQAttributes;
- ioaddr_t BasePort1;
- ioaddr_t NumPorts1;
- u_int Attributes1;
- ioaddr_t BasePort2;
- ioaddr_t NumPorts2;
- u_int Attributes2;
- u_int IOAddrLines;
-} config_info_t;
-
-/* For ValidateCIS */
-typedef struct cisinfo_t {
- u_int Chains;
-} cisinfo_t;
-
-typedef struct cs_status_t {
- u_char Function;
- event_t CardState;
- event_t SocketState;
-} cs_status_t;
-
-typedef union ds_ioctl_arg_t {
- adjust_t adjust;
- config_info_t config;
- tuple_t tuple;
- tuple_parse_t tuple_parse;
- client_req_t client_req;
- cs_status_t status;
- conf_reg_t conf_reg;
- cisinfo_t cisinfo;
- region_info_t region;
- bind_info_t bind_info;
- mtd_info_t mtd_info;
- win_info_t win_info;
- cisdump_t cisdump;
-} ds_ioctl_arg_t;
-
-#define DS_ADJUST_RESOURCE_INFO _IOWR('d', 2, adjust_t)
-#define DS_GET_CONFIGURATION_INFO _IOWR('d', 3, config_info_t)
-#define DS_GET_FIRST_TUPLE _IOWR('d', 4, tuple_t)
-#define DS_GET_NEXT_TUPLE _IOWR('d', 5, tuple_t)
-#define DS_GET_TUPLE_DATA _IOWR('d', 6, tuple_parse_t)
-#define DS_PARSE_TUPLE _IOWR('d', 7, tuple_parse_t)
-#define DS_RESET_CARD _IO ('d', 8)
-#define DS_GET_STATUS _IOWR('d', 9, cs_status_t)
-#define DS_ACCESS_CONFIGURATION_REGISTER _IOWR('d', 10, conf_reg_t)
-#define DS_VALIDATE_CIS _IOR ('d', 11, cisinfo_t)
-#define DS_SUSPEND_CARD _IO ('d', 12)
-#define DS_RESUME_CARD _IO ('d', 13)
-#define DS_EJECT_CARD _IO ('d', 14)
-#define DS_INSERT_CARD _IO ('d', 15)
-#define DS_GET_FIRST_REGION _IOWR('d', 16, region_info_t)
-#define DS_GET_NEXT_REGION _IOWR('d', 17, region_info_t)
-#define DS_REPLACE_CIS _IOWR('d', 18, cisdump_t)
-#define DS_GET_FIRST_WINDOW _IOR ('d', 19, win_info_t)
-#define DS_GET_NEXT_WINDOW _IOWR('d', 20, win_info_t)
-#define DS_GET_MEM_PAGE _IOWR('d', 21, win_info_t)
-
-#define DS_BIND_REQUEST _IOWR('d', 60, bind_info_t)
-#define DS_GET_DEVICE_INFO _IOWR('d', 61, bind_info_t)
-#define DS_GET_NEXT_DEVICE _IOWR('d', 62, bind_info_t)
-#define DS_UNBIND_REQUEST _IOW ('d', 63, bind_info_t)
-#define DS_BIND_MTD _IOWR('d', 64, mtd_info_t)
-
-
-/* used in userspace only */
-#define CS_IN_USE 0x1e
-
-#define INFO_MASTER_CLIENT 0x01
-#define INFO_IO_CLIENT 0x02
-#define INFO_MTD_CLIENT 0x04
-#define INFO_MEM_CLIENT 0x08
-#define MAX_NUM_CLIENTS 3
-
-#define INFO_CARD_SHARE 0x10
-#define INFO_CARD_EXCL 0x20
-
-
-#endif /* !defined(__KERNEL__) || defined(CONFIG_PCMCIA_IOCTL) */
-
#endif /* _LINUX_DS_H */
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff