Adjust sllin configuration utility to specify external expected response length.

The setup of the length has meaning not only for sent frames
but even for received responses. The new kernel driver
code uses DLC value stored in the cache for received frames.
The LIN_CACHE_RESPONSE is used only for IDs which
should be sent by the kernel driver.

Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>

diff --git a/lin_config/src/sllin_config.c b/lin_config/src/sllin_config.c
index dc704d8638ded650761f80b7d60abbc05064f629..c4b4084ba04092811f8633aef2978852bc565021 100644 (file)
--- a/lin_config/src/sllin_config.c
+++ b/lin_config/src/sllin_config.c
@@ -123,24 +123,24 @@ int sllin_cache_config(struct linc_lin_state *linc_lin_state,
        }
 
        for (i = 0; i < 0x3F; i++) {
+               frame.can_dlc = linc_lin_state->frame_entry[i].data_len;
+               frame.can_id = i; /* LIN ID */
+               frame.data[0] = linc_lin_state->frame_entry[i].data[0]; /* Data */
+               frame.data[1] = linc_lin_state->frame_entry[i].data[1]; /* Data */
+               frame.data[2] = linc_lin_state->frame_entry[i].data[2]; /* Data */
+               frame.data[3] = linc_lin_state->frame_entry[i].data[3]; /* Data */
+               frame.data[4] = linc_lin_state->frame_entry[i].data[4]; /* Data */
+               frame.data[5] = linc_lin_state->frame_entry[i].data[5]; /* Data */
+               frame.data[6] = linc_lin_state->frame_entry[i].data[6]; /* Data */
+               frame.data[7] = linc_lin_state->frame_entry[i].data[7]; /* Data */
+               frame.can_id |= LIN_CTRL_FRAME;
                if (linc_lin_state->frame_entry[i].status == 1) { /* Is active */
-                       frame.can_dlc = linc_lin_state->frame_entry[i].data_len;
-                       frame.can_id = i; /* LIN ID */
-                       frame.data[0] = linc_lin_state->frame_entry[i].data[0]; /* Data */
-                       frame.data[1] = linc_lin_state->frame_entry[i].data[1]; /* Data */
-                       frame.data[2] = linc_lin_state->frame_entry[i].data[2]; /* Data */
-                       frame.data[3] = linc_lin_state->frame_entry[i].data[3]; /* Data */
-                       frame.data[4] = linc_lin_state->frame_entry[i].data[4]; /* Data */
-                       frame.data[5] = linc_lin_state->frame_entry[i].data[5]; /* Data */
-                       frame.data[6] = linc_lin_state->frame_entry[i].data[6]; /* Data */
-                       frame.data[7] = linc_lin_state->frame_entry[i].data[7]; /* Data */
-
-                       frame.can_id |= LIN_CTRL_FRAME | LIN_CACHE_RESPONSE;
-                       ret = write(s, &frame, sizeof(frame));
-                       printf("configuring frame cache; ret = %d\n", ret);
-                       //if (ret ...)
-                       //read_response(tty);
+                       frame.can_id |= LIN_CACHE_RESPONSE;
                }
+               ret = write(s, &frame, sizeof(frame));
+               printf("configuring frame cache; ret = %d\n", ret);
+               //if (ret ...)
+               //read_response(tty);
        }
 
        close(s);