flash/stm32*: Rewrite info functions

[openocd.git] / src / flash / nor / stm32lx.c

diff --git a/src/flash/nor/stm32lx.c b/src/flash/nor/stm32lx.c
index ec696d2b376a1314be506dc64fc5a66612412c27..b907ff224651c8f0e8c2c81dbac3f2f74f47ea73 100644 (file)
--- a/src/flash/nor/stm32lx.c
+++ b/src/flash/nor/stm32lx.c
@@ -695,73 +695,74 @@ static int stm32lx_get_info(struct flash_bank *bank, char *buf, int buf_size)
 {
        /* This method must return a string displaying information about the bank */
 
-       struct target *target = bank->target;
-       uint32_t device_id;
-       int printed;
+       uint32_t dbgmcu_idcode;
 
        /* read stm32 device id register */
-       int retval = target_read_u32(target, DBGMCU_IDCODE, &device_id);
+       int retval = target_read_u32(bank->target, DBGMCU_IDCODE, &dbgmcu_idcode);
        if (retval != ERROR_OK)
                return retval;
 
-       if ((device_id & 0xfff) == 0x416) {
-               printed = snprintf(buf, buf_size, "stm32lx - Rev: ");
-               buf += printed;
-               buf_size -= printed;
+       uint16_t device_id = dbgmcu_idcode & 0xfff;
+       uint16_t rev_id = dbgmcu_idcode >> 16;
+       const char *device_str;
+       const char *rev_str = NULL;
 
-               switch (device_id >> 16) {
-                       case 0x1000:
-                               snprintf(buf, buf_size, "A");
-                               break;
+       switch (device_id) {
+       case 0x416:
+               device_str = "stm32lx";
 
-                       case 0x1008:
-                               snprintf(buf, buf_size, "Y");
-                               break;
+               switch (rev_id) {
+               case 0x1000:
+                       rev_str = "A";
+                       break;
 
-                       case 0x1018:
-                               snprintf(buf, buf_size, "X");
-                               break;
+               case 0x1008:
+                       rev_str = "Y";
+                       break;
 
-                       case 0x1038:
-                               snprintf(buf, buf_size, "W");
-                               break;
+               case 0x1018:
+                       rev_str = "X";
+                       break;
 
-                       case 0x1078:
-                               snprintf(buf, buf_size, "V");
-                               break;
+               case 0x1038:
+                       rev_str = "W";
+                       break;
 
-                       default:
-                               snprintf(buf, buf_size, "unknown");
-                               break;
+               case 0x1078:
+                       rev_str = "V";
+                       break;
                }
-       } else if (((device_id & 0xfff) == 0x436) ||
-                       ((device_id & 0xfff) == 0x427)) {
-               printed = snprintf(buf, buf_size, "stm32lx (HD) - Rev: ");
-               buf += printed;
-               buf_size -= printed;
-
-               switch (device_id >> 16) {
-                       case 0x1000:
-                               snprintf(buf, buf_size, "A");
-                               break;
+               break;
 
-                       case 0x1008:
-                               snprintf(buf, buf_size, "Z");
-                               break;
+       case 0x436:
+       case 0x427:
+               device_str = "stm32lx (HD)";
 
-                       case 0x1018:
-                               snprintf(buf, buf_size, "Y");
-                               break;
+               switch (rev_id) {
+               case 0x1000:
+                       rev_str = "A";
+                       break;
 
-                       default:
-                               snprintf(buf, buf_size, "unknown");
-                               break;
+               case 0x1008:
+                       rev_str = "Z";
+                       break;
+
+               case 0x1018:
+                       rev_str = "Y";
+                       break;
                }
-       } else {
+               break;
+
+       default:
                snprintf(buf, buf_size, "Cannot identify target as a stm32lx");
                return ERROR_FAIL;
        }
 
+       if (rev_str != NULL)
+               snprintf(buf, buf_size, "%s - Rev: %s", device_str, rev_str);
+       else
+               snprintf(buf, buf_size, "%s - Rev: unknown (0x%04x)", device_str, rev_id);
+
        return ERROR_OK;
 }