hal.c

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/*
 * ======== hal.c ========
 *
 */
#include "msp430.h"

#include "driverlib.h"

#include "USB_API/USB_Common/device.h"
#include "USB_config/descriptors.h"

#include "hal.h"

#define GPIO_ALL	GPIO_PIN0|GPIO_PIN1|GPIO_PIN2|GPIO_PIN3| \
					GPIO_PIN4|GPIO_PIN5|GPIO_PIN6|GPIO_PIN7


extern volatile uint8_t button1Pressed;
extern volatile uint8_t button2Pressed;

/*
 * This function drives all the I/O's as output-low, to avoid floating inputs
 * (which cause extra power to be consumed).  This setting is compatible with  
 * TI FET target boards, the F5529 Launchpad, and F5529 Experimenters Board;  
 * but may not be compatible with custom hardware, which may have components  
 * attached to the I/Os that could be affected by these settings.  So if using
 * other boards, this function may need to be modified.
 */
void USBHAL_initPorts(void)
{
#ifdef __MSP430_HAS_PORT1_R__
    GPIO_setOutputLowOnPin(GPIO_PORT_P1, GPIO_ALL);
    GPIO_setAsOutputPin(GPIO_PORT_P1, GPIO_ALL);
#endif

#ifdef __MSP430_HAS_PORT2_R__
    GPIO_setOutputLowOnPin(GPIO_PORT_P2, GPIO_ALL);
    GPIO_setAsOutputPin(GPIO_PORT_P2, GPIO_ALL);
#endif

#ifdef __MSP430_HAS_PORT3_R__
    GPIO_setOutputLowOnPin(GPIO_PORT_P3, GPIO_ALL);
    GPIO_setAsOutputPin(GPIO_PORT_P3, GPIO_ALL);
#endif

#ifdef __MSP430_HAS_PORT4_R__
    GPIO_setOutputLowOnPin(GPIO_PORT_P4, GPIO_ALL);
    GPIO_setAsOutputPin(GPIO_PORT_P4, GPIO_ALL);
#endif

#ifdef __MSP430_HAS_PORT5_R__
    GPIO_setOutputLowOnPin(GPIO_PORT_P5, GPIO_ALL);
    GPIO_setAsOutputPin(GPIO_PORT_P5, GPIO_ALL);
#endif

#ifdef __MSP430_HAS_PORT6_R__
    GPIO_setOutputLowOnPin(GPIO_PORT_P6, GPIO_ALL);
    GPIO_setAsOutputPin(GPIO_PORT_P6, GPIO_ALL);
#endif

#ifdef __MSP430_HAS_PORT7_R__
    GPIO_setOutputLowOnPin(GPIO_PORT_P7, GPIO_ALL);
    GPIO_setAsOutputPin(GPIO_PORT_P7, GPIO_ALL);
#endif

#ifdef __MSP430_HAS_PORT8_R__
    GPIO_setOutputLowOnPin(GPIO_PORT_P8, GPIO_ALL);
    GPIO_setAsOutputPin(GPIO_PORT_P8, GPIO_ALL);
#endif

#ifdef __MSP430_HAS_PORT9_R__
    GPIO_setOutputLowOnPin(GPIO_PORT_P9, GPIO_ALL);
    GPIO_setAsOutputPin(GPIO_PORT_P9, GPIO_ALL);
#endif

#ifdef __MSP430_HAS_PORTJ_R__
    GPIO_setOutputLowOnPin(GPIO_PORT_PJ, GPIO_ALL);
    GPIO_setAsOutputPin(GPIO_PORT_PJ, GPIO_ALL);
#endif
}

/* Configures the system clocks:
* MCLK = SMCLK = DCO/FLL = mclkFreq (expected to be expressed in Hz)
* ACLK = FLLref = REFO=32kHz
*
* XT2 is not configured here.  Instead, the USB API automatically starts XT2
* when beginning USB communication, and optionally disables it during USB
* suspend.  It's left running after the USB host is disconnected, at which
* point you're free to disable it.  You need to configure the XT2 frequency
* in the Descriptor Tool (currently set to 4MHz in this example).
* See the Programmer's Guide for more information.
*/
void USBHAL_initClocks(uint32_t mclkFreq)
{
	UCS_initClockSignal(
	   UCS_FLLREF,
	   UCS_REFOCLK_SELECT,
	   UCS_CLOCK_DIVIDER_1);

	UCS_initClockSignal(
	   UCS_ACLK,
	   UCS_REFOCLK_SELECT,
	   UCS_CLOCK_DIVIDER_1);

    UCS_initFLLSettle(
        mclkFreq/1000,
        mclkFreq/32768);
}

void USBHAL_initButtons(void)
{
    GPIO_setOutputHighOnPin(BUTTON_FAR_PORT, BUTTON_FAR_PIN);
    GPIO_setAsInputPinWithPullUpResistor(BUTTON_FAR_PORT, BUTTON_FAR_PIN);
    GPIO_clearInterrupt(BUTTON_FAR_PORT, BUTTON_FAR_PIN);
    GPIO_disableInterrupt(BUTTON_FAR_PORT, BUTTON_FAR_PIN);

    GPIO_setOutputHighOnPin(BUTTON_CENTER_PORT, BUTTON_CENTER_PIN);
    GPIO_setAsInputPinWithPullUpResistor(BUTTON_CENTER_PORT, BUTTON_CENTER_PIN);
    GPIO_clearInterrupt(BUTTON_CENTER_PORT, BUTTON_CENTER_PIN);
    GPIO_disableInterrupt(BUTTON_CENTER_PORT, BUTTON_CENTER_PIN);

    GPIO_setOutputHighOnPin(BUTTON_NEAR_PORT, BUTTON_NEAR_PIN);
    GPIO_setAsInputPinWithPullUpResistor(BUTTON_NEAR_PORT, BUTTON_NEAR_PIN);
    GPIO_clearInterrupt(BUTTON_NEAR_PORT, BUTTON_NEAR_PIN);
    GPIO_disableInterrupt(BUTTON_NEAR_PORT, BUTTON_NEAR_PIN);

    GPIO_setOutputHighOnPin(BUTTON_INDEX_PORT, BUTTON_INDEX_PIN);
    GPIO_setAsInputPinWithPullUpResistor(BUTTON_INDEX_PORT, BUTTON_INDEX_PIN);
    GPIO_clearInterrupt(BUTTON_INDEX_PORT, BUTTON_INDEX_PIN);
    GPIO_disableInterrupt(BUTTON_INDEX_PORT, BUTTON_INDEX_PIN);

    GPIO_setOutputHighOnPin(BUTTON_MIDDLE_PORT, BUTTON_MIDDLE_PIN);
    GPIO_setAsInputPinWithPullUpResistor(BUTTON_MIDDLE_PORT, BUTTON_MIDDLE_PIN);
    GPIO_clearInterrupt(BUTTON_MIDDLE_PORT, BUTTON_MIDDLE_PIN);
    GPIO_disableInterrupt(BUTTON_MIDDLE_PORT, BUTTON_MIDDLE_PIN);

    GPIO_setOutputHighOnPin(BUTTON_RING_PORT, BUTTON_RING_PIN);
    GPIO_setAsInputPinWithPullUpResistor(BUTTON_RING_PORT, BUTTON_RING_PIN);
    GPIO_clearInterrupt(BUTTON_RING_PORT, BUTTON_RING_PIN);
    GPIO_disableInterrupt(BUTTON_RING_PORT, BUTTON_RING_PIN);

    GPIO_setOutputHighOnPin(BUTTON_PINKY_PORT, BUTTON_PINKY_PIN);
    GPIO_setAsInputPinWithPullUpResistor(BUTTON_PINKY_PORT, BUTTON_PINKY_PIN);
    GPIO_clearInterrupt(BUTTON_PINKY_PORT, BUTTON_PINKY_PIN);
    GPIO_disableInterrupt(BUTTON_PINKY_PORT, BUTTON_PINKY_PIN);
}