flash/stm32*: Rewrite info functions

Factor out common bit masking and printing code and use intermediate
strings to avoid buffer size handling.

Change-Id: I7d8c12df11ade6cdca8c917b5524372daa498bf4
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/1496
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>

diff --git a/src/flash/nor/stm32f1x.c b/src/flash/nor/stm32f1x.c
index 037fea07b9b634ef56e8b0a995ab176c2087aaf4..3c360fcd0f89d748b9a2eeb00a245d4ba176f832 100644 (file)
--- a/src/flash/nor/stm32f1x.c
+++ b/src/flash/nor/stm32f1x.c
@@ -1016,204 +1016,174 @@ COMMAND_HANDLER(stm32x_handle_part_id_command)
 
 static int get_stm32x_info(struct flash_bank *bank, char *buf, int buf_size)
 {
-       uint32_t device_id;
-       int printed;
+       uint32_t dbgmcu_idcode;
 
                /* read stm32 device id register */
-       int retval = stm32x_get_device_id(bank, &device_id);
+       int retval = stm32x_get_device_id(bank, &dbgmcu_idcode);
        if (retval != ERROR_OK)
                return retval;
 
-       if ((device_id & 0xfff) == 0x410) {
-               printed = snprintf(buf, buf_size, "stm32x (Medium Density) - 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 0x0000:
-                               snprintf(buf, buf_size, "A");
-                               break;
+       switch (device_id) {
+       case 0x410:
+               device_str = "stm32x (Medium Density)";
 
-                       case 0x2000:
-                               snprintf(buf, buf_size, "B");
-                               break;
+               switch (rev_id) {
+               case 0x0000:
+                       rev_str = "A";
+                       break;
 
-                       case 0x2001:
-                               snprintf(buf, buf_size, "Z");
-                               break;
+               case 0x2000:
+                       rev_str = "B";
+                       break;
 
-                       case 0x2003:
-                               snprintf(buf, buf_size, "Y");
-                               break;
+               case 0x2001:
+                       rev_str = "Z";
+                       break;
 
-                       default:
-                               snprintf(buf, buf_size, "unknown");
-                               break;
+               case 0x2003:
+                       rev_str = "Y";
+                       break;
                }
-       } else if ((device_id & 0xfff) == 0x412) {
-               printed = snprintf(buf, buf_size, "stm32x (Low Density) - Rev: ");
-               buf += printed;
-               buf_size -= printed;
-
-               switch (device_id >> 16) {
-                       case 0x1000:
-                               snprintf(buf, buf_size, "A");
-                               break;
-
-                       default:
-                               snprintf(buf, buf_size, "unknown");
-                               break;
+               break;
+
+       case 0x412:
+               device_str = "stm32x (Low Density)";
+
+               switch (rev_id) {
+               case 0x1000:
+                       rev_str = "A";
+                       break;
                }
-       } else if ((device_id & 0xfff) == 0x414) {
-               printed = snprintf(buf, buf_size, "stm32x (High Density) - Rev: ");
-               buf += printed;
-               buf_size -= printed;
-
-               switch (device_id >> 16) {
-                       case 0x1000:
-                               snprintf(buf, buf_size, "A");
-                               break;
-
-                       case 0x1001:
-                               snprintf(buf, buf_size, "Z");
-                               break;
-
-                       default:
-                               snprintf(buf, buf_size, "unknown");
-                               break;
+               break;
+
+       case 0x414:
+               device_str = "stm32x (High Density)";
+
+               switch (rev_id) {
+               case 0x1000:
+                       rev_str = "A";
+                       break;
+
+               case 0x1001:
+                       rev_str = "Z";
+                       break;
                }
-       } else if ((device_id & 0xfff) == 0x418) {
-               printed = snprintf(buf, buf_size, "stm32x (Connectivity) - Rev: ");
-               buf += printed;
-               buf_size -= printed;
-
-               switch (device_id >> 16) {
-                       case 0x1000:
-                               snprintf(buf, buf_size, "A");
-                               break;
-
-                       case 0x1001:
-                               snprintf(buf, buf_size, "Z");
-                               break;
-
-                       default:
-                               snprintf(buf, buf_size, "unknown");
-                               break;
+               break;
+
+       case 0x418:
+               device_str = "stm32x (Connectivity)";
+
+               switch (rev_id) {
+               case 0x1000:
+                       rev_str = "A";
+                       break;
+
+               case 0x1001:
+                       rev_str = "Z";
+                       break;
                }
-       } else if ((device_id & 0xfff) == 0x420) {
-               printed = snprintf(buf, buf_size, "stm32x (Value) - Rev: ");
-               buf += printed;
-               buf_size -= printed;
-
-               switch (device_id >> 16) {
-                       case 0x1000:
-                               snprintf(buf, buf_size, "A");
-                               break;
-
-                       case 0x1001:
-                               snprintf(buf, buf_size, "Z");
-                               break;
-
-                       default:
-                               snprintf(buf, buf_size, "unknown");
-                               break;
+               break;
+
+       case 0x420:
+               device_str = "stm32x (Value)";
+
+               switch (rev_id) {
+               case 0x1000:
+                       rev_str = "A";
+                       break;
+
+               case 0x1001:
+                       rev_str = "Z";
+                       break;
                }
-       } else if ((device_id & 0xfff) == 0x422) {
-               printed = snprintf(buf, buf_size, "stm32f30x - Rev: ");
-               buf += printed;
-               buf_size -= printed;
-
-               switch (device_id >> 16) {
-                       case 0x1000:
-                               snprintf(buf, buf_size, "A");
-                               break;
-
-                       case 0x1001:
-                               snprintf(buf, buf_size, "Z");
-                               break;
-
-                       case 0x2000:
-                               snprintf(buf, buf_size, "B");
-                               break;
-
-                       default:
-                               snprintf(buf, buf_size, "unknown");
-                               break;
+               break;
+
+       case 0x422:
+               device_str = "stm32f30x";
+
+               switch (rev_id) {
+               case 0x1000:
+                       rev_str = "A";
+                       break;
+
+               case 0x1001:
+                       rev_str = "Z";
+                       break;
+
+               case 0x2000:
+                       rev_str = "B";
+                       break;
                }
-       } else if ((device_id & 0xfff) == 0x428) {
-               printed = snprintf(buf, buf_size, "stm32x (Value HD) - Rev: ");
-               buf += printed;
-               buf_size -= printed;
-
-               switch (device_id >> 16) {
-                       case 0x1000:
-                               snprintf(buf, buf_size, "A");
-                               break;
-
-                       case 0x1001:
-                               snprintf(buf, buf_size, "Z");
-                               break;
-
-                       default:
-                               snprintf(buf, buf_size, "unknown");
-                               break;
+               break;
+
+       case 0x428:
+               device_str = "stm32x (Value HD)";
+
+               switch (rev_id) {
+               case 0x1000:
+                       rev_str = "A";
+                       break;
+
+               case 0x1001:
+                       rev_str = "Z";
+                       break;
                }
-       } else if ((device_id & 0xfff) == 0x430) {
-               printed = snprintf(buf, buf_size, "stm32x (XL) - Rev: ");
-               buf += printed;
-               buf_size -= printed;
-
-               switch (device_id >> 16) {
-                       case 0x1000:
-                               snprintf(buf, buf_size, "A");
-                               break;
-
-                       default:
-                               snprintf(buf, buf_size, "unknown");
-                               break;
+               break;
+
+       case 0x430:
+               device_str = "stm32x (XL)";
+
+               switch (rev_id) {
+               case 0x1000:
+                       rev_str = "A";
+                       break;
                }
-       } else if ((device_id & 0xfff) == 0x432) {
-               printed = snprintf(buf, buf_size, "stm32f37x - Rev: ");
-               buf += printed;
-               buf_size -= printed;
-
-               switch (device_id >> 16) {
-                       case 0x1000:
-                               snprintf(buf, buf_size, "A");
-                               break;
-
-                       case 0x2000:
-                               snprintf(buf, buf_size, "B");
-                               break;
-
-                       default:
-                               snprintf(buf, buf_size, "unknown");
-                               break;
+               break;
+
+       case 0x432:
+               device_str = "stm32f37x";
+
+               switch (rev_id) {
+               case 0x1000:
+                       rev_str = "A";
+                       break;
+
+               case 0x2000:
+                       rev_str = "B";
+                       break;
                }
-       } else if (((device_id & 0xfff) == 0x440) ||
-                       ((device_id & 0xfff) == 0x444)) {
-               printed = snprintf(buf, buf_size, "stm32f0x - Rev: ");
-               buf += printed;
-               buf_size -= printed;
-
-               switch (device_id >> 16) {
-                       case 0x1000:
-                               snprintf(buf, buf_size, "1.0");
-                               break;
-
-                       case 0x2000:
-                               snprintf(buf, buf_size, "2.0");
-                               break;
-
-                       default:
-                               snprintf(buf, buf_size, "unknown");
-                               break;
+               break;
+
+       case 0x440:
+       case 0x444:
+               device_str = "stm32f0x";
+
+               switch (rev_id) {
+               case 0x1000:
+                       rev_str = "1.0";
+                       break;
+
+               case 0x2000:
+                       rev_str = "2.0";
+                       break;
                }
-       } else {
+               break;
+
+       default:
                snprintf(buf, buf_size, "Cannot identify target as a stm32x\n");
                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;
 }
 

diff --git a/src/flash/nor/stm32f2x.c b/src/flash/nor/stm32f2x.c
index 1922a8c9afaadef910e5083005335083330a46ed..0593bfdda2dfadf1b86c32e9cd2aee2da13d0050 100644 (file)
--- a/src/flash/nor/stm32f2x.c
+++ b/src/flash/nor/stm32f2x.c
@@ -857,68 +857,70 @@ static int stm32x_auto_probe(struct flash_bank *bank)
 
 static int get_stm32x_info(struct flash_bank *bank, char *buf, int buf_size)
 {
-       uint32_t device_id;
-       int printed;
+       uint32_t dbgmcu_idcode;
 
        /* read stm32 device id register */
-       int retval = stm32x_get_device_id(bank, &device_id);
+       int retval = stm32x_get_device_id(bank, &dbgmcu_idcode);
        if (retval != ERROR_OK)
                return retval;
 
-       if ((device_id & 0xfff) == 0x411) {
-               printed = snprintf(buf, buf_size, "stm32f2x - 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 0x411:
+               device_str = "stm32f2x";
 
-                       case 0x2000:
-                               snprintf(buf, buf_size, "B");
-                               break;
+               switch (rev_id) {
+               case 0x1000:
+                       rev_str = "A";
+                       break;
 
-                       case 0x1001:
-                               snprintf(buf, buf_size, "Z");
-                               break;
+               case 0x2000:
+                       rev_str = "B";
+                       break;
 
-                       case 0x2001:
-                               snprintf(buf, buf_size, "Y");
-                               break;
+               case 0x1001:
+                       rev_str = "Z";
+                       break;
 
-                       case 0x2003:
-                               snprintf(buf, buf_size, "X");
-                               break;
+               case 0x2001:
+                       rev_str = "Y";
+                       break;
 
-                       default:
-                               snprintf(buf, buf_size, "unknown");
-                               break;
+               case 0x2003:
+                       rev_str = "X";
+                       break;
                }
-       } else if (((device_id & 0xfff) == 0x413) ||
-                       ((device_id & 0xfff) == 0x419)) {
-               printed = snprintf(buf, buf_size, "stm32f4x - Rev: ");
-               buf += printed;
-               buf_size -= printed;
-
-               switch (device_id >> 16) {
-                       case 0x1000:
-                               snprintf(buf, buf_size, "A");
-                               break;
-
-                       case 0x1001:
-                               snprintf(buf, buf_size, "Z");
-                               break;
-
-                       default:
-                               snprintf(buf, buf_size, "unknown");
-                               break;
+               break;
+
+       case 0x413:
+       case 0x419:
+               device_str = "stm32f4x";
+
+               switch (rev_id) {
+               case 0x1000:
+                       rev_str = "A";
+                       break;
+
+               case 0x1001:
+                       rev_str = "Z";
+                       break;
                }
-       } else {
+               break;
+
+       default:
                snprintf(buf, buf_size, "Cannot identify target as a stm32x\n");
                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;
 }
 

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;
 }