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Staging: comedi: jr3_pci: Use struct device from pci_dev for firmware loading. 

Signed-off-by: Frank Mori Hess <fmhess@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Frank Mori Hess 2009-04-14 12:59:47 -04:00 committed by Greg Kroah-Hartman
parent 883db3d9bb
commit c5331be12e
1 changed files with 35 additions and 49 deletions
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84
drivers/staging/comedi/drivers/jr3_pci.c
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@ -48,55 +48,6 @@ Devices: [JR3] PCI force sensor board (jr3_pci)
#include "comedi_pci.h"
#include "jr3_pci.h"
/* Hotplug firmware loading stuff */
static void comedi_fw_release(struct device *dev)
{
printk(KERN_DEBUG "firmware_sample_driver: ghost_release\n");
}
static struct device comedi_fw_device = {
.init_name = "comedi",
.release = comedi_fw_release
};
typedef int comedi_firmware_callback(struct comedi_device * dev,
const u8 * data, size_t size);
static int comedi_load_firmware(struct comedi_device * dev,
char *name, comedi_firmware_callback cb)
{
int result = 0;
const struct firmware *fw;
char *firmware_path;
static const char *prefix = "comedi/";
firmware_path = kmalloc(strlen(prefix) + strlen(name) + 1, GFP_KERNEL);
if (!firmware_path) {
result = -ENOMEM;
} else {
firmware_path[0] = '\0';
strcat(firmware_path, prefix);
strcat(firmware_path, name);
result = device_register(&comedi_fw_device);
if (result == 0) {
result = request_firmware(&fw, firmware_path,
&comedi_fw_device);
if (result == 0) {
if (!cb) {
result = -EINVAL;
} else {
result = cb(dev, fw->data, fw->size);
}
release_firmware(fw);
}
device_unregister(&comedi_fw_device);
}
kfree(firmware_path);
}
return result;
}
#define PCI_VENDOR_ID_JR3 0x1762
#define PCI_DEVICE_ID_JR3_1_CHANNEL 0x3111
#define PCI_DEVICE_ID_JR3_2_CHANNEL 0x3112
@ -168,6 +119,41 @@ struct jr3_pci_subdev_private {
int retries;
};
/* Hotplug firmware loading stuff */
typedef int comedi_firmware_callback(struct comedi_device *dev,
const u8 *data, size_t size);
static int comedi_load_firmware(struct comedi_device *dev, char *name,
comedi_firmware_callback cb)
{
int result = 0;
const struct firmware *fw;
char *firmware_path;
static const char *prefix = "comedi/";
struct jr3_pci_dev_private *devpriv = dev->private;
firmware_path = kmalloc(strlen(prefix) + strlen(name) + 1, GFP_KERNEL);
if (!firmware_path) {
result = -ENOMEM;
} else {
firmware_path[0] = '\0';
strcat(firmware_path, prefix);
strcat(firmware_path, name);
result = request_firmware(&fw, firmware_path,
&devpriv->pci_dev->dev);
if (result == 0) {
if (!cb)
result = -EINVAL;
else
result = cb(dev, fw->data, fw->size);
release_firmware(fw);
}
kfree(firmware_path);
}
return result;
}
static struct poll_delay_t poll_delay_min_max(int min, int max)
{
struct poll_delay_t result;