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Pass driver_data from ID table to driver init function

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This commit is contained in:
Daniel Drake 2007-10-25 15:00:30 +01:00
parent 2709c6dc8c
commit 0ac74ef649
3 changed files with 10 additions and 5 deletions
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10
libfprint/core.c
View file

@ -95,7 +95,8 @@ static void register_drivers(void)
}
}
static struct fp_driver *find_supporting_driver(struct usb_device *udev)
static struct fp_driver *find_supporting_driver(struct usb_device *udev,
unsigned long *driver_data)
{
GList *elem = registered_drivers;
@ -108,6 +109,7 @@ static struct fp_driver *find_supporting_driver(struct usb_device *udev)
udev->descriptor.idProduct == id->product) {
fp_dbg("driver %s supports USB device %04x:%04x",
drv->name, id->vendor, id->product);
*driver_data = id->driver_data;
return drv;
}
} while (elem = g_list_next(elem));
@ -135,13 +137,15 @@ API_EXPORTED struct fp_dscv_dev **fp_discover_devs(void)
* sets of drivers against small sets of USB devices */
for (bus = usb_get_busses(); bus; bus = bus->next)
for (udev = bus->devices; udev; udev = udev->next) {
struct fp_driver *drv = find_supporting_driver(udev);
unsigned long driver_data;
struct fp_driver *drv = find_supporting_driver(udev, &driver_data);
struct fp_dscv_dev *ddev;
if (!drv)
continue;
ddev = g_malloc0(sizeof(*ddev));
ddev->drv = drv;
ddev->udev = udev;
ddev->driver_data = driver_data;
tmplist = g_list_prepend(tmplist, (gpointer) ddev);
dscv_count++;
}
@ -196,7 +200,7 @@ API_EXPORTED struct fp_dev *fp_dev_open(struct fp_dscv_dev *ddev)
dev->__enroll_stage = -1;
if (drv->init) {
r = drv->init(dev);
r = drv->init(dev, ddev->driver_data);
if (r) {
fp_err("device initialisation failed, driver=%s", drv->name);
usb_close(udevh);

2
libfprint/drivers/upekts.c
View file

@ -420,7 +420,7 @@ static const unsigned char init28_0b[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00
};
static int dev_init(struct fp_dev *dev)
static int dev_init(struct fp_dev *dev, unsigned long driver_data)
{
struct upekts_dev *upekdev;
unsigned char dummy = 0x10;

3
libfprint/fp_internal.h
View file

@ -102,7 +102,7 @@ struct fp_driver {
void *priv;
/* Device operations */
int (*init)(struct fp_dev *dev);
int (*init)(struct fp_dev *dev, unsigned long driver_data);
void (*exit)(struct fp_dev *dev);
int (*enroll)(struct fp_dev *dev, gboolean initial, int stage,
struct fp_print_data **print_data);
@ -123,6 +123,7 @@ void fpi_img_driver_setup(struct fp_img_driver *idriver);
struct fp_dscv_dev {
struct usb_device *udev;
struct fp_driver *drv;
unsigned long driver_data;
};
struct fp_print_data {