Small additions to core/system.[ch] Small addition to gpio driver header

diff --git a/core/system.c b/core/system.c
index 5939c49..f8e6ecc 100644 (file)
--- a/core/system.c
+++ b/core/system.c
@@ -137,6 +137,12 @@ void subsystem_power(uint32_t power_bit, uint32_t on_off)
                sys_config->sys_AHB_clk_ctrl &= ~(power_bit);
        }
 }
+/* Check whether a subsystem is powered or not */
+uint8_t subsystem_powered(uint32_t power_bit)
+{
+       struct lpc_sys_config* sys_config = LPC_SYS_CONFIG;
+       return (sys_config->sys_AHB_clk_ctrl & power_bit);
+}
 
 /***************************************************************************** */
 /*                      System Clock                                           */

diff --git a/include/core/system.h b/include/core/system.h
index dc3dfb1..4f06c0f 100644 (file)
--- a/include/core/system.h
+++ b/include/core/system.h
@@ -46,6 +46,8 @@ void enter_deep_sleep(void);
 
 /* Power on or off a subsystem */
 void subsystem_power(uint32_t power_bit, uint32_t on_off);
+/* Check whether a subsystem is powered or not */
+uint8_t subsystem_powered(uint32_t power_bit);
 
 /* Configure the brown-out detection.
  * Note: Brown-Out detection must be powered to operate the ADC (See Section 19.2

diff --git a/include/drivers/gpio.h b/include/drivers/gpio.h
index 5ca197f..d4bad31 100644 (file)
--- a/include/drivers/gpio.h
+++ b/include/drivers/gpio.h
@@ -68,6 +68,12 @@ struct lpc_gpio
 /***************************************************************************** */
 /*   Public access to GPIO setup   */
 
+enum gpio_ports {
+       GPIO_PORT0 = 0,
+       GPIO_PORT1,
+       GPIO_PORT2,
+};
+
 #define GPIO_DIR_IN 0
 #define GPIO_DIR_OUT 1