LED_CFG_LED_POLAR
rt2x00_set_field32(®, LED_CFG_LED_POLAR, polarity);
led_g_mode = rt2x00_get_field32(reg, LED_CFG_LED_POLAR) ? 3 : 0;
led_r_mode = rt2x00_get_field32(reg, LED_CFG_LED_POLAR) ? 0 : 3;
rt2x00_set_field32(®, LED_CFG_LED_POLAR, 1);