Add general programmer sanity checks

And remove the completely unused vendor field.

Corresponding to flashrom svn r1630.
Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>

flashrom.c

@@ -1557,8 +1557,9 @@ void print_banner(void)
 
 int selfcheck(void)
 {
-	int ret = 0;
 	const struct flashchip *chip;
+	int i;
+	int ret = 0;
 
 	/* Safety check. Instead of aborting after the first error, check
 	 * if more errors exist.
@@ -1567,6 +1568,32 @@ int selfcheck(void)
 		msg_gerr("Programmer table miscompilation!\n");
 		ret = 1;
 	}
+	for (i = 0; i < PROGRAMMER_INVALID; i++) {
+		const struct programmer_entry p = programmer_table[i];
+		if (p.name == NULL) {
+			msg_gerr("All programmers need a valid name, but the one with index %d does not!\n", i);
+			ret = 1;
+			/* This might hide other problems with this programmer, but allows for better error
+			 * messages below without jumping through hoops. */
+			continue;
+		}
+		if (p.init == NULL) {
+			msg_gerr("Programmer %s does not have a valid init function!\n", p.name);
+			ret = 1;
+		}
+		if (p.delay == NULL) {
+			msg_gerr("Programmer %s does not have a valid delay function!\n", p.name);
+			ret = 1;
+		}
+		if (p.map_flash_region == NULL) {
+			msg_gerr("Programmer %s does not have a valid map_flash_region function!\n", p.name);
+			ret = 1;
+		}
+		if (p.unmap_flash_region == NULL) {
+			msg_gerr("Programmer %s does not have a valid unmap_flash_region function!\n", p.name);
+			ret = 1;
+		}
+	}
 	/* It would be favorable if we could also check for correct termination
 	 * of the following arrays, but we don't know their sizes in here...
 	 * For 'flashchips' we check the first element to be non-null. In the

programmer.h

@@ -91,13 +91,11 @@ enum programmer {
 };
 
 struct programmer_entry {
-	const char *vendor;
 	const char *name;
 
 	int (*init) (void);
 
-	void *(*map_flash_region) (const char *descr, unsigned long phys_addr,
-				   size_t len);
+	void *(*map_flash_region) (const char *descr, unsigned long phys_addr, size_t len);
 	void (*unmap_flash_region) (void *virt_addr, size_t len);
 
 	void (*delay) (int usecs);