pcmcia: pccard_read_tuple and TUPLE_RETURN_COMMON cleanup
[safe/jmp/linux-2.6] / drivers / pcmcia / pcmcia_ioctl.c
index 1efc74f..30cf71d 100644 (file)
 #include <linux/proc_fs.h>
 #include <linux/poll.h>
 #include <linux/pci.h>
+#include <linux/seq_file.h>
+#include <linux/smp_lock.h>
 #include <linux/workqueue.h>
 
-#define IN_CARD_SERVICES
 #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"
-#include "ds_internal.h"
 
 static int major_dev = -1;
 
@@ -57,7 +58,7 @@ typedef struct user_info_t {
 } user_info_t;
 
 
-#ifdef DEBUG
+#ifdef CONFIG_PCMCIA_DEBUG
 extern int ds_pc_debug;
 
 #define ds_dbg(lvl, fmt, arg...) do {          \
@@ -105,37 +106,40 @@ static struct pcmcia_driver *get_pcmcia_driver(dev_info_t *dev_info)
 #ifdef CONFIG_PROC_FS
 static struct proc_dir_entry *proc_pccard = NULL;
 
-static int proc_read_drivers_callback(struct device_driver *driver, void *d)
+static int proc_read_drivers_callback(struct device_driver *driver, void *_m)
 {
-       char **p = d;
+       struct seq_file *m = _m;
        struct pcmcia_driver *p_drv = container_of(driver,
                                                   struct pcmcia_driver, drv);
 
-       *p += sprintf(*p, "%-24.24s 1 %d\n", p_drv->drv.name,
+       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
        );
-       d = (void *) p;
-
        return 0;
 }
 
-static int proc_read_drivers(char *buf, char **start, off_t pos,
-                            int count, int *eof, void *data)
+static int pccard_drivers_proc_show(struct seq_file *m, void *v)
 {
-       char *p = buf;
-       int rc;
-
-       rc = bus_for_each_drv(&pcmcia_bus_type, NULL,
-                             (void *) &p, proc_read_drivers_callback);
-       if (rc < 0)
-               return rc;
+       return bus_for_each_drv(&pcmcia_bus_type, NULL,
+                               m, proc_read_drivers_callback);
+}
 
-       return (p - buf);
+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
 
 
@@ -148,7 +152,7 @@ static int adjust_irq(struct pcmcia_socket *s, adjust_t *adj)
 
        irq = adj->resource.irq.IRQ;
        if ((irq < 0) || (irq > 15))
-               return CS_BAD_IRQ;
+               return -EINVAL;
 
        if (adj->Action != REMOVE_MANAGED_RESOURCE)
                return 0;
@@ -166,7 +170,7 @@ static int adjust_irq(struct pcmcia_socket *s, adjust_t *adj)
 #else
 
 static inline int adjust_irq(struct pcmcia_socket *s, adjust_t *adj) {
-       return CS_SUCCESS;
+       return 0;
 }
 
 #endif
@@ -174,7 +178,7 @@ static inline int adjust_irq(struct pcmcia_socket *s, adjust_t *adj) {
 static int pcmcia_adjust_resource_info(adjust_t *adj)
 {
        struct pcmcia_socket *s;
-       int ret = CS_UNSUPPORTED_FUNCTION;
+       int ret = -ENOSYS;
        unsigned long flags;
 
        down_read(&pcmcia_socket_list_rwsem);
@@ -225,6 +229,138 @@ static int pcmcia_adjust_resource_info(adjust_t *adj)
        return (ret);
 }
 
+/** 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) {
+                       pcmcia_read_cis_mem(s, 1, (c->ConfigBase+CISREG_PRR)>>1, 1, &reg);
+                       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) {
+                       pcmcia_read_cis_mem(s, 1, (c->ConfigBase+CISREG_ESR)>>1, 1, &reg);
+                       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->irq.AssignedIRQ;
+                       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->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 0;
+} /* pccard_get_configuration_info */
+
 
 /*======================================================================
 
@@ -485,20 +621,27 @@ static int ds_open(struct inode *inode, struct file *file)
     struct pcmcia_socket *s;
     user_info_t *user;
     static int warning_printed = 0;
+    int ret = 0;
 
     ds_dbg(0, "ds_open(socket %d)\n", i);
 
+    lock_kernel();
     s = pcmcia_get_socket_by_nr(i);
-    if (!s)
-           return -ENODEV;
+    if (!s) {
+           ret = -ENODEV;
+           goto out;
+    }
     s = pcmcia_get_socket(s);
-    if (!s)
-           return -ENODEV;
+    if (!s) {
+           ret = -ENODEV;
+           goto out;
+    }
 
     if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
            if (s->pcmcia_state.busy) {
                    pcmcia_put_socket(s);
-                   return -EBUSY;
+                   ret = -EBUSY;
+                   goto out;
            }
        else
            s->pcmcia_state.busy = 1;
@@ -507,7 +650,8 @@ static int ds_open(struct inode *inode, struct file *file)
     user = kmalloc(sizeof(user_info_t), GFP_KERNEL);
     if (!user) {
            pcmcia_put_socket(s);
-           return -ENOMEM;
+           ret = -ENOMEM;
+           goto out;
     }
     user->event_tail = user->event_head = 0;
     user->next = s->user;
@@ -529,7 +673,9 @@ static int ds_open(struct inode *inode, struct file *file)
 
     if (s->pcmcia_state.present)
        queue_event(user, CS_EVENT_CARD_INSERTION);
-    return 0;
+out:
+    unlock_kernel();
+    return ret;
 } /* ds_open */
 
 /*====================================================================*/
@@ -693,7 +839,7 @@ static int ds_ioctl(struct inode * inode, struct file * file,
     case DS_GET_CONFIGURATION_INFO:
        if (buf->config.Function &&
           (buf->config.Function >= s->functions))
-           ret = CS_BAD_ARGS;
+           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);
@@ -716,15 +862,15 @@ static int ds_ioctl(struct inode * inode, struct file * file,
        break;
     case DS_PARSE_TUPLE:
        buf->tuple.TupleData = buf->tuple_parse.data;
-       ret = pccard_parse_tuple(&buf->tuple, &buf->tuple_parse.parse);
+       ret = pcmcia_parse_tuple(&buf->tuple, &buf->tuple_parse.parse);
        break;
     case DS_RESET_CARD:
-       ret = pccard_reset_card(s);
+       ret = pcmcia_reset_card(s);
        break;
     case DS_GET_STATUS:
            if (buf->status.Function &&
                (buf->status.Function >= s->functions))
-                   ret = CS_BAD_ARGS;
+                   ret = -EINVAL;
            else {
                    struct pcmcia_device *p_dev = get_pcmcia_device(s, buf->status.Function);
                    ret = pccard_get_status(s, p_dev, &buf->status);
@@ -735,7 +881,7 @@ static int ds_ioctl(struct inode * inode, struct file * file,
        mutex_lock(&s->skt_mutex);
        pcmcia_validate_mem(s);
        mutex_unlock(&s->skt_mutex);
-       ret = pccard_validate_cis(s, BIND_FN_ALL, &buf->cisinfo.Chains);
+       ret = pccard_validate_cis(s, &buf->cisinfo.Chains);
        break;
     case DS_SUSPEND_CARD:
        ret = pcmcia_suspend_card(s);
@@ -755,7 +901,7 @@ static int ds_ioctl(struct inode * inode, struct file * file,
            goto free_out;
        }
 
-       ret = CS_BAD_ARGS;
+       ret = -EINVAL;
 
        if (!(buf->conf_reg.Function &&
             (buf->conf_reg.Function >= s->functions))) {
@@ -773,12 +919,9 @@ static int ds_ioctl(struct inode * inode, struct file * file,
                err = -EPERM;
                goto free_out;
        } else {
-               static int printed = 0;
-               if (!printed) {
-                       printk(KERN_WARNING "2.6. kernels use pcmciamtd instead of memory_cs.c and do not require special\n");
-                       printk(KERN_WARNING "MTD handling any more.\n");
-                       printed++;
-               }
+                       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;
@@ -796,7 +939,7 @@ static int ds_ioctl(struct inode * inode, struct file * file,
                           &buf->win_info.map);
        break;
     case DS_REPLACE_CIS:
-       ret = pcmcia_replace_cis(s, &buf->cisdump);
+       ret = pcmcia_replace_cis(s, buf->cisdump.Data, buf->cisdump.Length);
        break;
     case DS_BIND_REQUEST:
        if (!capable(CAP_SYS_ADMIN)) {
@@ -818,22 +961,19 @@ static int ds_ioctl(struct inode * inode, struct file * file,
        err = -EINVAL;
     }
 
-    if ((err == 0) && (ret != CS_SUCCESS)) {
+    if ((err == 0) && (ret != 0)) {
        ds_dbg(2, "ds_ioctl: ret = %d\n", ret);
        switch (ret) {
-       case CS_BAD_SOCKET: case CS_NO_CARD:
-           err = -ENODEV; break;
-       case CS_BAD_ARGS: case CS_BAD_ATTRIBUTE: case CS_BAD_IRQ:
-       case CS_BAD_TUPLE:
-           err = -EINVAL; break;
-       case CS_IN_USE:
-           err = -EBUSY; break;
-       case CS_OUT_OF_RESOURCE:
+       case -ENODEV:
+       case -EINVAL:
+       case -EBUSY:
+       case -ENOSYS:
+           err = ret;
+           break;
+       case -ENOMEM:
            err = -ENOSPC; break;
-       case CS_NO_MORE_ITEMS:
+       case -ENOSPC:
            err = -ENODATA; break;
-       case CS_UNSUPPORTED_FUNCTION:
-           err = -ENOSYS; break;
        default:
            err = -EIO; break;
        }
@@ -875,7 +1015,7 @@ void __init pcmcia_setup_ioctl(void) {
 #ifdef CONFIG_PROC_FS
        proc_pccard = proc_mkdir("bus/pccard", NULL);
        if (proc_pccard)
-               create_proc_read_entry("drivers",0,proc_pccard,proc_read_drivers,NULL);
+               proc_create("drivers", 0, proc_pccard, &pccard_drivers_proc_fops);
 #endif
 }