/*
 * Adaptation to Oswald
 */
#include <msp430.h>
#include <msp430xgeneric.h>
#include <stdint.h>
#include <string.h>

#include "mw_main.h"

#include "mw_lcd.h"
#include "mw_adc.h"
#include "mw_bt.h"
#include "bt_hci.h"
#include "bt_l2cap.h"
#include "bluetooth_init_cc256x.h"
#include "mw_acc.h"

#include "oswald.h"
#include "oswald_hal.h"

#include "calendar.h"


const char *hal_get_version_string(void)
{
	return MW_MAIN_VERSION;
}

const char *hal_get_buildno_string(void)
{
	return BUILDNO;
}

const char *hal_get_radio_version_string(void)
{
	return cc256x_version;
}

void hal_lcd_set_pixel(uint8_t x, uint8_t y, uint8_t color)
{
	if (x > 95)
		x = 95;
	if (y > 95)
		y = 95;
	mw_lcd_draw_pixel(x, y, color ? LCD_BLACK : LCD_WHITE);
}

void hal_lcd_clear_display(void)
{
	mw_lcd_clear_fb();
}

void hal_lcd_update_display(void)
{
	mw_lcd_update_screen();
}

void hal_lcd_set_backlight(boolean state)
{
	if (state) {
		ENABLE_LCD_LED();
	} else {
		DISABLE_LCD_LED();
	}
}

boolean hal_lcd_get_backlight(void)
{
	return (LCD_LED_POUT & LCD_LED_PIN) ? TRUE : FALSE;
}

void hal_enable_centisecond_timer(void)
{
	start_timer(TIMER_100MS_CYCLES);
}

void hal_disable_centisecond_timer(void)
{
	stop_timer();
}

void hal_enable_halfsecond_timer(void)
{
	start_timer(TIMER_500MS_CYCLES);
}

void hal_disable_halfsecond_timer(void)
{
	stop_timer();
}

void hal_get_rtc(clock_state *rtc)
{
	/* Update clock state from RTC */
	rtc->hour = RTCHOUR;
	rtc->minute = RTCMIN;
	rtc->second = RTCSEC;
	rtc->day = RTCDAY;
	rtc->month = RTCMON;
	rtc->year = RTCYEAR;
	rtc->wday = RTCDOW;
}

void hal_set_rtc(clock_state *rtc, boolean set_sec)
{
	/* Update clock state from RTC */
	RTCHOUR = rtc->hour;
	RTCMIN = rtc->minute;
	if (set_sec)
		RTCSEC = rtc->second;
	RTCDAY = rtc->day;
	RTCMON = rtc->month;
	RTCYEAR = rtc->year;
	rtc->wday = getWochentag(rtc->day, rtc->month, rtc->year);
	RTCDOW = rtc->wday;
}

void hal_get_power_state(power_state *pwr)
{
	unsigned int val;

	pwr->source = (BAT_CHARGE_IN & BAT_CHARGE_PWR_BIT) ? POWER_SOURCE_BATTERY : POWER_SOURCE_EXTERNAL;

	/* unless the charger is enabled we do not get a reasonable state */
	if (!(BAT_CHARGE_IN & BAT_CHARGE_ENABLE_PIN)) {
		switch (BAT_CHARGE_IN & (BAT_CHARGE_STAT1 | BAT_CHARGE_STAT2)) {
			case BAT_CHARGE_STAT1:
				pwr->charge_state = POWER_CHARGER_DONE;
				break;
			case BAT_CHARGE_STAT2:
				pwr->charge_state = POWER_CHARGER_CHARGING;
				break;
			case (BAT_CHARGE_STAT1 | BAT_CHARGE_STAT2):
				pwr->charge_state = POWER_CHARGER_UNK;
				break;
			default:
				pwr->charge_state = POWER_CHARGER_PRECHARGE;
				break;
		}
	} else {
		pwr->charge_state = POWER_CHARGER_UNK;
	}

	if ((pwr->source == POWER_SOURCE_BATTERY) && (RTCSEC != 0)) {
		/* the ADC and activating the measuring shunts is
		 * power expensive so only do this every minute */
		return;
	};

	/* get new values and so some averaging to avoid jumps */
	val = mw_get_battery_adc_val();
	pwr->percent = mw_get_battery_percentage_from_val(val);
	pwr->level = val;
}

void hal_vibration_set_state(boolean state)
{
#ifdef MW_DIGITAL_V2
	if (state) {
		TA1CTL |= TASSEL__ACLK | MC__UPDOWN | ID_0;
		P7SEL |= BIT3;
	} else {
		TA1CTL = 0;
		P7SEL &= ~BIT3;
	}
#endif
}

boolean hal_vibration_get_state(void)
{
#ifdef MW_DIGITAL_V2
	return (P7SEL & BIT3) ? TRUE : FALSE;
#else
	return FALSE;
#endif
}

#define BLUETOOTH_DEVICE_NAME "Oswald on MetaWatch"
static boolean bt_is_visible = FALSE;


bluetooth_state hal_bluetooth_set_state(bluetooth_state state)
{
	uint8_t buf[32];

	if (state == BLUETOOTH_OFF && mw_bt_is_enabled() == 1) {
		mw_disable_bt();
		bt_is_visible = FALSE;
		return BLUETOOTH_OFF;
	} else if (state == BLUETOOTH_ON && mw_bt_is_enabled() == 0) {
		mw_enable_bt();
		// set our name
		memset(buf, 0, 32);
		strncpy((char *)buf, BLUETOOTH_DEVICE_NAME, strlen(BLUETOOTH_DEVICE_NAME));
		bt_hci_cmd(HCI_HC_BB_OGF, HCI_W_LOCAL_NAME_OCF, strlen(BLUETOOTH_DEVICE_NAME)+1, buf);
		// read our local address
		bt_hci_cmd(HCI_INFO_PARAM_OGF, HCI_R_BD_ADDR_OCF, 0, NULL);
		// enable page scan
		buf[0] = HCI_BB_SCAN_PAGE;
		bt_hci_cmd(HCI_HC_BB_OGF, HCI_W_SCAN_EN_OCF, 1, buf);
		bt_is_visible = FALSE;
		return BLUETOOTH_ON;
	} else
		return BLUETOOTH_ILL;
}

bluetooth_state hal_bluetooth_get_state(void)
{
	if (mw_bt_is_enabled() == 1) {
		if (bt_l2cap_get_connected(0x40))
			return BLUETOOTH_CONNECTED;
		else
			return BLUETOOTH_ON;
	} else
		return BLUETOOTH_OFF;
}

uint8_t *hal_bluetooth_get_local_bdaddr(void)
{
	return bt_hci_get_local_bdaddr();
}

void hal_bluetooth_set_visible(boolean visible)
{
	uint8_t buf[2];

	if (mw_bt_is_enabled() == 0) {
		bt_is_visible = FALSE;
		return;
	}

	if (visible) {
		// enable page and inquiry scan
		buf[0] = HCI_BB_SCAN_INQUIRY | HCI_BB_SCAN_PAGE;
		bt_hci_cmd(HCI_HC_BB_OGF, HCI_W_SCAN_EN_OCF, 1, buf);
		bt_is_visible = TRUE;
	} else {
		// enable page scan only
		buf[0] = HCI_BB_SCAN_PAGE;
		bt_hci_cmd(HCI_HC_BB_OGF, HCI_W_SCAN_EN_OCF, 1, buf);
		bt_is_visible = FALSE;
	}
}

boolean hal_bluetooth_get_visible(void)
{
	return bt_is_visible;
}

void hal_bluetooth_send_data(const void *mdat, uint16_t mlen)
{
	bt_l2cap_send_channel(0x40, mdat, mlen);
}

/*
 * Control the accelerometer
 */
void hal_accelerometer_enable(void)
{
	mw_acc_enable();
}

void hal_accelerometer_disable(void)
{
	mw_acc_disable();
}

uint16_t hal_amblight_get_val(void)
{
	return mw_get_amblight_adc_val();
}