void button_close_device(void)
{
if (!initialized)
return;
/* Assumes HP detection is not available */
initialized = false;
mc13783_enable_event(MC13783_ONOFD1_EVENT, false);
ext_btn = BUTTON_NONE;
}
void usb_init_device(void)
{
/* Do one-time inits */
usb_drv_startup();
/* Initially poll */
usb_connect_event();
/* Enable PMIC event */
mc13783_enable_event(MC13783_USB_EVENT);
}
void INIT_ATTR headphone_init(void)
{
/* A thread is required to monitor the remote ADC and jack state. */
semaphore_init(&headphone_wakeup, 1, 0);
headphone_thread_id = create_thread(headphone_thread,
headphone_stack,
sizeof(headphone_stack),
0, headphone_thread_name
IF_PRIO(, PRIORITY_REALTIME)
IF_COP(, CPU));
/* Initially poll and then enable PMIC event */
headphone_detect_event();
mc13783_enable_event(MC13783_ONOFD2_EVENT);
}
void button_init_device(void)
{
#ifdef BOOTLOADER
/* Can be called more than once in the bootloader */
if (initialized)
return;
initialized = true;
#endif
/* Enable keypad clock */
ccm_module_clock_gating(CG_KPP, CGM_ON_RUN_WAIT);
/* 1. Enable number of rows in keypad (KPCR[4:0])
*
* Configure the rows/cols in KPP
* LSB nybble in KPP is for 5 rows
* MSB nybble in KPP is for 3 cols */
KPP_KPCR |= 0x1f;
/* 2. Write 0's to KPDR[10:8] */
KPP_KPDR &= ~(0x7 << 8);
/* 3. Configure the keypad columns as open-drain (KPCR[10:8]). */
KPP_KPCR |= (0x7 << 8);
/* 4. Configure columns as output, rows as input (KDDR[10:8,4:0]) */
KPP_KDDR = (KPP_KDDR | (0x7 << 8)) & ~0x1f;
/* 5. Clear the KPKD Status Flag and Synchronizer chain.
* 6. Set the KDIE control bit bit. */
KPP_KPSR = KPP_KPSR_KRSS | KPP_KPSR_KDSC | KPP_KPSR_KPKD;
power_button_update(!(mc13783_read(MC13783_INTERRUPT_SENSE1)
& MC13783_ONOFD1S));
mc13783_enable_event(MC13783_ONOFD1_EVENT, true);
#ifdef HAVE_HEADPHONE_DETECTION
headphone_init();
#endif
}
