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aeslib: introduce user_data for write registers callback

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aes2501 needs this for state tracking
This commit is contained in:
Daniel Drake 2008-02-15 18:06:24 +00:00
parent 6f08a3666d
commit 77b5dab04b
3 changed files with 12 additions and 9 deletions
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12
libfprint/aeslib.c
View file

@ -39,6 +39,7 @@ struct write_regv_data {
const struct aes_regwrite *regs;
unsigned int offset;
aes_write_regv_cb callback;
void *user_data;
};
static void continue_write_regv(struct write_regv_data *wdata);
@ -56,9 +57,9 @@ static void write_regv_trf_complete(libusb_dev_handle *devh,
libusb_urb_handle_free(urbh);
if (status != FP_URB_COMPLETED)
wdata->callback(wdata->imgdev, -EIO);
wdata->callback(wdata->imgdev, -EIO, wdata->user_data);
else if (rqlength != actual_length)
wdata->callback(wdata->imgdev, -EPROTO);
wdata->callback(wdata->imgdev, -EPROTO, wdata->user_data);
else
continue_write_regv(wdata);
}
@ -110,7 +111,7 @@ static void continue_write_regv(struct write_regv_data *wdata)
while (TRUE) {
if (offset >= wdata->num_regs) {
fp_dbg("all registers written");
wdata->callback(wdata->imgdev, 0);
wdata->callback(wdata->imgdev, 0, wdata->user_data);
return;
}
if (wdata->regs[offset].reg)
@ -133,7 +134,7 @@ static void continue_write_regv(struct write_regv_data *wdata)
r = do_write_regv(wdata, upper_bound);
if (r < 0) {
wdata->callback(wdata->imgdev, r);
wdata->callback(wdata->imgdev, r, wdata->user_data);
return;
}
@ -144,7 +145,7 @@ static void continue_write_regv(struct write_regv_data *wdata)
* single URB up to a limit. insert writes to non-existent register 0 to force
* specific groups of writes to be separated by different URBs. */
void aes_write_regv(struct fp_img_dev *dev, const struct aes_regwrite *regs,
unsigned int num_regs, aes_write_regv_cb callback)
unsigned int num_regs, aes_write_regv_cb callback, void *user_data)
{
struct write_regv_data *wdata = g_malloc(sizeof(*wdata));
fp_dbg("write %d regs", num_regs);
@ -153,6 +154,7 @@ void aes_write_regv(struct fp_img_dev *dev, const struct aes_regwrite *regs,
wdata->regs = regs;
wdata->offset = 0;
wdata->callback = callback;
wdata->user_data = user_data;
continue_write_regv(wdata);
}

5
libfprint/aeslib.h
View file

@ -27,10 +27,11 @@ struct aes_regwrite {
unsigned char value;
};
typedef void (*aes_write_regv_cb)(struct fp_img_dev *dev, int result);
typedef void (*aes_write_regv_cb)(struct fp_img_dev *dev, int result,
void *user_data);
void aes_write_regv(struct fp_img_dev *dev, const struct aes_regwrite *regs,
unsigned int num_regs, aes_write_regv_cb callback);
unsigned int num_regs, aes_write_regv_cb callback, void *user_data);
void aes_assemble_image(unsigned char *input, size_t width, size_t height,
unsigned char *output);

4
libfprint/drivers/aes4000.c
View file

@ -177,7 +177,7 @@ static void do_capture(struct fp_img_dev *dev)
}
}
static void init_reqs_cb(struct fp_img_dev *dev, int result)
static void init_reqs_cb(struct fp_img_dev *dev, int result, void *user_data)
{
fpi_imgdev_activate_complete(dev, result);
if (result == 0)
@ -186,7 +186,7 @@ static void init_reqs_cb(struct fp_img_dev *dev, int result)
static int dev_activate(struct fp_img_dev *dev, enum fp_imgdev_state state)
{
aes_write_regv(dev, init_reqs, G_N_ELEMENTS(init_reqs), init_reqs_cb);
aes_write_regv(dev, init_reqs, G_N_ELEMENTS(init_reqs), init_reqs_cb, NULL);
return 0;
}