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-rw-r--r--scd/ccid-driver.c30
1 files changed, 29 insertions, 1 deletions
diff --git a/scd/ccid-driver.c b/scd/ccid-driver.c
index ae40f0118..6b0833b2c 100644
--- a/scd/ccid-driver.c
+++ b/scd/ccid-driver.c
@@ -255,6 +255,9 @@ struct ccid_driver_s
void (*progress_cb)(void *, const char *, int, int, int);
void *progress_cb_arg;
+ void (*prompt_cb)(void *, int);
+ void *prompt_cb_arg;
+
unsigned char intr_buf[64];
struct libusb_transfer *transfer;
};
@@ -1802,6 +1805,19 @@ ccid_set_progress_cb (ccid_driver_t handle,
}
+int
+ccid_set_prompt_cb (ccid_driver_t handle,
+ void (*cb)(void *, int), void *cb_arg)
+{
+ if (!handle)
+ return CCID_DRIVER_ERR_INV_VALUE;
+
+ handle->prompt_cb = cb;
+ handle->prompt_cb_arg = cb_arg;
+ return 0;
+}
+
+
/* Close the reader HANDLE. */
int
ccid_close_reader (ccid_driver_t handle)
@@ -1930,6 +1946,7 @@ bulk_in (ccid_driver_t handle, unsigned char *buffer, size_t length,
{
int rc;
int msglen;
+ int notified = 0;
/* Fixme: The next line for the current Valgrind without support
for USB IOCTLs. */
@@ -1982,14 +1999,25 @@ bulk_in (ccid_driver_t handle, unsigned char *buffer, size_t length,
we got the expected message type. This is in particular required
for the Cherry keyboard which sends a time extension request for
each key hit. */
- if ( !(buffer[7] & 0x03) && (buffer[7] & 0xC0) == 0x80)
+ if (!(buffer[7] & 0x03) && (buffer[7] & 0xC0) == 0x80)
{
/* Card present and active, time extension requested. */
DEBUGOUT_2 ("time extension requested (%02X,%02X)\n",
buffer[7], buffer[8]);
+
+ /* Gnuk enhancement to prompt user input by ack button */
+ if (buffer[8] == 0xff && !notified)
+ {
+ notified = 1;
+ handle->prompt_cb (handle->prompt_cb_arg, 1);
+ }
+
goto retry;
}
+ if (notified)
+ handle->prompt_cb (handle->prompt_cb_arg, 0);
+
if (buffer[0] != expected_type && buffer[0] != RDR_to_PC_SlotStatus)
{
DEBUGOUT_1 ("unexpected bulk-in msg type (%02x)\n", buffer[0]);