+/**
+ * get_eeprom - read the eeprom
+ *
+ * @eeprom - pointer to a eeprom struct to fill
+ *
+ * This function will panic() on wrong EEPROM content
+ */
+static void get_eeprom(struct tricorder_eeprom *eeprom)
+{
+ int ret;
+
+ if (!eeprom)
+ panic("No eeprom given!\n");
+
+ ret = gpio_request(7, "BMS");
+ if (ret)
+ panic("gpio: requesting BMS pin failed\n");
+
+ ret = gpio_direction_input(7);
+ if (ret)
+ panic("gpio: set BMS as input failed\n");
+
+ ret = gpio_get_value(7);
+ if (ret < 0)
+ panic("gpio: get BMS pin state failed\n");
+
+ gpio_free(7);
+
+ if (ret == 0) {
+ /* BMS is _not_ set, do the EEPROM check */
+ ret = tricorder_get_eeprom(0x51, eeprom);
+ if (!ret) {
+ if (strncmp(eeprom->board_name, "CS10411", 7) != 0)
+ panic("Wrong board name '%.*s'\n",
+ sizeof(eeprom->board_name),
+ eeprom->board_name);
+ if (eeprom->board_version[0] < 'D')
+ panic("Wrong board version '%.*s'\n",
+ sizeof(eeprom->board_version),
+ eeprom->board_version);
+ } else {
+ panic("Could not get board revision\n");
+ }
+ }
+}
+
+/**
+ * print_hwversion - print out a HW version string
+ *
+ * @eeprom - pointer to the eeprom
+ */
+static void print_hwversion(struct tricorder_eeprom *eeprom)
+{
+ size_t len;
+ if (!eeprom)
+ panic("No eeprom given!");
+
+ printf("Board %.*s:%.*s serial %.*s",
+ sizeof(eeprom->board_name), eeprom->board_name,
+ sizeof(eeprom->board_version), eeprom->board_version,
+ sizeof(eeprom->board_serial), eeprom->board_serial);
+
+ len = strnlen(eeprom->interface_version,
+ sizeof(eeprom->interface_version));
+ if (len > 0)
+ printf(" HW interface version %.*s",
+ sizeof(eeprom->interface_version),
+ eeprom->interface_version);
+ puts("\n");
+}
+