#include <linux/fs.h>
#include <linux/delay.h>
#include <linux/poll.h>
+#include <linux/smp_lock.h>
#include <linux/wait.h>
#include <asm/uaccess.h>
#include <asm/io.h>
struct reader_dev *dev;
struct pcmcia_device *link;
int minor = iminor(inode);
+ int ret;
if (minor >= CM_MAX_DEV)
return -ENODEV;
+ lock_kernel();
link = dev_table[minor];
- if (link == NULL || !pcmcia_dev_present(link))
- return -ENODEV;
+ if (link == NULL || !pcmcia_dev_present(link)) {
+ ret = -ENODEV;
+ goto out;
+ }
- if (link->open)
- return -EBUSY;
+ if (link->open) {
+ ret = -EBUSY;
+ goto out;
+ }
dev = link->priv;
filp->private_data = dev;
if (filp->f_flags & O_NONBLOCK) {
DEBUGP(4, dev, "filep->f_flags O_NONBLOCK set\n");
- return -EAGAIN;
+ ret = -EAGAIN;
+ goto out;
}
link->open = 1;
mod_timer(&dev->poll_timer, jiffies + POLL_PERIOD);
DEBUGP(2, dev, "<- cm4040_open (successfully)\n");
- return nonseekable_open(inode, filp);
+ ret = nonseekable_open(inode, filp);
+out:
+ unlock_kernel();
+ return ret;
}
static int cm4040_close(struct inode *inode, struct file *filp)
return;
}
-static int reader_config(struct pcmcia_device *link, int devno)
+static int cm4040_config_check(struct pcmcia_device *p_dev,
+ cistpl_cftable_entry_t *cfg,
+ void *priv_data)
{
- struct reader_dev *dev;
- tuple_t tuple;
- cisparse_t parse;
- u_char buf[64];
- int fail_fn, fail_rc;
int rc;
+ if (!cfg->io.nwin)
+ return -ENODEV;
+
+ /* Get the IOaddr */
+ p_dev->io.BasePort1 = cfg->io.win[0].base;
+ p_dev->io.NumPorts1 = cfg->io.win[0].len;
+ p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
+ if (!(cfg->io.flags & CISTPL_IO_8BIT))
+ p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
+ if (!(cfg->io.flags & CISTPL_IO_16BIT))
+ p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+ p_dev->io.IOAddrLines = cfg->io.flags & CISTPL_IO_LINES_MASK;
+
+ rc = pcmcia_request_io(p_dev, &p_dev->io);
+ dev_printk(KERN_INFO, &handle_to_dev(p_dev),
+ "pcmcia_request_io returned 0x%x\n", rc);
+ return rc;
+}
+
- tuple.Attributes = 0;
- tuple.TupleData = buf;
- tuple.TupleDataMax = sizeof(buf);
- tuple.TupleOffset = 0;
+static int reader_config(struct pcmcia_device *link, int devno)
+{
+ struct reader_dev *dev;
+ int fail_rc;
link->io.BasePort2 = 0;
link->io.NumPorts2 = 0;
link->io.Attributes2 = 0;
- tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
- for (rc = pcmcia_get_first_tuple(link, &tuple);
- rc == CS_SUCCESS;
- rc = pcmcia_get_next_tuple(link, &tuple)) {
- rc = pcmcia_get_tuple_data(link, &tuple);
- if (rc != CS_SUCCESS)
- continue;
- rc = pcmcia_parse_tuple(link, &tuple, &parse);
- if (rc != CS_SUCCESS)
- continue;
-
- link->conf.ConfigIndex = parse.cftable_entry.index;
-
- if (!parse.cftable_entry.io.nwin)
- continue;
-
- link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
- link->io.NumPorts1 = parse.cftable_entry.io.win[0].len;
- link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
- if (!(parse.cftable_entry.io.flags & CISTPL_IO_8BIT))
- link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
- if (!(parse.cftable_entry.io.flags & CISTPL_IO_16BIT))
- link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
- link->io.IOAddrLines = parse.cftable_entry.io.flags
- & CISTPL_IO_LINES_MASK;
- rc = pcmcia_request_io(link, &link->io);
-
- dev_printk(KERN_INFO, &handle_to_dev(link), "foo");
- if (rc == CS_SUCCESS)
- break;
- else
- dev_printk(KERN_INFO, &handle_to_dev(link),
- "pcmcia_request_io failed 0x%x\n", rc);
- }
- if (rc != CS_SUCCESS)
+
+ if (pcmcia_loop_config(link, cm4040_config_check, NULL))
goto cs_release;
link->conf.IntType = 00000002;
if ((fail_rc = pcmcia_request_configuration(link,&link->conf))
!=CS_SUCCESS) {
- fail_fn = RequestConfiguration;
dev_printk(KERN_INFO, &handle_to_dev(link),
"pcmcia_request_configuration failed 0x%x\n",
fail_rc);
return ret;
}
- device_create(cmx_class, NULL, MKDEV(major, i), "cmx%d", i);
+ device_create_drvdata(cmx_class, NULL, MKDEV(major, i), NULL,
+ "cmx%d", i);
return 0;
}