Changeset cf8cc36 in mainline for uspace/app/test_serial/test_serial.c

Timestamp:

2010-05-14T13:45:28Z (14 years ago)

Author:

Lenka Trochtova <trochtova.lenka@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

c47e1a8

Parents:

04c7003f

Message:

get/set parameters of the serial communication (baud rate, parity, number of stop bits, word size)

File:

• uspace/app/test_serial/test_serial.c (modified) (3 diffs)

uspace/app/test_serial/test_serial.c

@@ -92 +92 @@
         }
         
-        res = ipc_call_sync_1_0(phone, SERIAL_SET_BAUD_RATE, 1200);
+        unsigned int old_baud, old_par, old_stop, old_word_size;
+        
+        res = ipc_call_sync_0_4(phone, SERIAL_GET_COM_PROPS, &old_baud, &old_par, &old_word_size, &old_stop);   
         if (EOK != res) {
-                printf(NAME ": failed to set baud rate, errno = %d.\n", -res);
+                printf(NAME ": failed to get old communication parameters, errno = %d.\n", -res);
                 devman_hangup_phone(DEVMAN_CLIENT);
                 ipc_hangup(phone);
                 free(buf);
-                return 4;               
+                return 4;
         }
+        
+        res = ipc_call_sync_4_0(phone, SERIAL_SET_COM_PROPS, 1200, SERIAL_NO_PARITY, 8, 1);     
+        if (EOK != res) {
+                printf(NAME ": failed to set communication parameters, errno = %d.\n", -res);
+                devman_hangup_phone(DEVMAN_CLIENT);
+                ipc_hangup(phone);
+                free(buf);
+                return 4;
+        }
+        
         
         int total = 0;
@@ -107 +119 @@
                 if (0 > read) {
                         printf(NAME ": failed read from device, errno = %d.\n", -read);
+                        ipc_call_sync_4_0(phone, SERIAL_SET_COM_PROPS, old_baud, old_par, old_word_size, old_stop);     
                         ipc_hangup(phone);
                         devman_hangup_phone(DEVMAN_CLIENT);
@@ -126 +139 @@
         write_dev(phone, the_end, str_size(the_end));
         
+        // restore original communication settings
+        ipc_call_sync_4_0(phone, SERIAL_SET_COM_PROPS, old_baud, old_par, old_word_size, old_stop);     
         devman_hangup_phone(DEVMAN_CLIENT);
         ipc_hangup(phone);