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#include <stdio.h>
#include <fcntl.h>
#include <string.h>
#include <sys/ioctl.h>
#include "vpapi_lib.h"

/* Locals */
static char dev_name[] = "/dev/vpapi";
static int dev_fd = 0;
static char lib_str[] = "[vpapi_lib]:";

int vpapi_open_device(void)
{
	int fdflags;

	/* open the device */
	dev_fd = open(dev_name, O_RDWR); 
	if (dev_fd <= 0) {
		printf("Cannot open %s device\n", dev_name);
		return -1;
	}

	/* set some flags */
	fdflags = fcntl(dev_fd, F_GETFL, 0);
	fdflags |= O_NONBLOCK;
	fcntl(dev_fd, F_SETFL, fdflags);

	return 0;
}

int vpapi_close_device(void)
{
	if(dev_fd > 0)
		close(dev_fd);

	return 0;	
}

VpStatusType vpapi_make_dev_object(VpDeviceType dev_type, VpDeviceIdType dev_id)
{
	VpApiModMkDevObjType data;

	data.deviceType = dev_type;
	data.deviceId = dev_id;

	if (dev_fd <= 0) {
		printf("Device %s is not accessible\n", dev_name);
		return VP_STATUS_FAILURE;
	}

	
	if (ioctl(dev_fd, VPAPI_MOD_IOX_MK_DEV_OBJ, &data) < 0) {
		printf("ioctl(VPAPI_MOD_IOX_MK_DEV_OBJ) failed\n");
		return VP_STATUS_FAILURE;
	}

	return data.status;
}

VpStatusType vpapi_make_line_object(VpTermType term_type, VpLineIdType line_id)
{
	VpApiModMkLnObjType data;

	data.termType = term_type;
	data.lineId = line_id;

	if (dev_fd <= 0) {
		printf("Device %s is not accessible\n", dev_name);
		return VP_STATUS_FAILURE;
	}

	
	if (ioctl(dev_fd, VPAPI_MOD_IOX_MK_LN_OBJ, &data) < 0) {
		printf("ioctl(VPAPI_MOD_IOX_MK_LN_OBJ) failed\n");
		return VP_STATUS_FAILURE;
	}

	return data.status;
}

VpStatusType vpapi_map_line_id(VpLineIdType line_id)
{
	VpApiModMapLnIdType data;

	data.lineId = line_id;

	if (dev_fd <= 0) {
		printf("Device %s is not accessible\n", dev_name);
		return VP_STATUS_FAILURE;
	}

	
	if (ioctl(dev_fd, VPAPI_MOD_IOX_MAP_LN_ID, &data) < 0) {
		printf("ioctl(VPAPI_MOD_IOX_MAP_LN_ID) failed\n");
		return VP_STATUS_FAILURE;
	}

	return data.status;
}

VpStatusType vpapi_map_slac_id(VpDeviceIdType dev_id, unsigned char slac_id)
{
	VpApiModMapSlacIdType data;

	data.deviceId = dev_id;
	data.slacId = slac_id;

	if (dev_fd <= 0) {
		printf("Device %s is not accessible\n", dev_name);
		return VP_STATUS_FAILURE;
	}

	
	if (ioctl(dev_fd, VPAPI_MOD_IOX_MAP_SLAC_ID, &data) < 0) {
		printf("ioctl(VPAPI_MOD_IOX_MAP_SLAC_ID) failed\n");
		return VP_STATUS_FAILURE;
	}

	return data.status;
}

VpStatusType vpapi_free_line_context(VpLineIdType line_id)
{
	VpApiModFreeLnCtxType data;

	data.lineId = line_id;

	if (dev_fd <= 0) {
		printf("Device %s is not accessible\n", dev_name);
		return VP_STATUS_FAILURE;
	}

	
	if (ioctl(dev_fd, VPAPI_MOD_IOX_FREE_LN_CTX, &data) < 0) {
		printf("ioctl(VPAPI_MOD_IOX_FREE_LN_CTX) failed\n");
		return VP_STATUS_FAILURE;
	}

	return data.status;
}

VpStatusType vpapi_init_device(VpDeviceIdType dev_id, VpProfilePtrType dev_profile_ptr,
				VpProfilePtrType ac_profile_ptr, VpProfilePtrType dc_profile_ptr,
				VpProfilePtrType ring_profile_ptr, VpProfilePtrType fxo_ac_profile_ptr,
				VpProfilePtrType fxo_cfg_profile_ptr, vpapi_init_device_params_t *params_ptr)
{
	VpApiModInitDeviceType data;

	data.deviceId = dev_id;
	data.pDevProfile = dev_profile_ptr;
	data.pAcProfile = ac_profile_ptr;
	data.pDcProfile = dc_profile_ptr;
	data.pRingProfile = ring_profile_ptr;
	data.pFxoAcProfile = fxo_ac_profile_ptr;
	data.pFxoCfgProfile = fxo_cfg_profile_ptr;
	data.devProfileSize = params_ptr->dev_size;
	data.acProfileSize = params_ptr->ac_size;
	data.dcProfileSize = params_ptr->dc_size;
	data.ringProfileSize = params_ptr->ring_size;
	data.fxoAcProfileSize = params_ptr->fxo_ac_size;
	data.fxoCfgProfileSize = params_ptr->fxo_cfg_size;

	if (dev_fd <= 0) {
		printf("Device %s is not accessible\n", dev_name);
		return VP_STATUS_FAILURE;
	}

	
	if (ioctl(dev_fd, VPAPI_MOD_IOX_INIT_DEV, &data) < 0) {
		printf("ioctl(VPAPI_MOD_IOX_INIT_DEV) failed\n");
		return VP_STATUS_FAILURE;
	}

	return data.status;
}

VpStatusType vpapi_cal_line(VpLineIdType line_id)
{
	VpApiModCalLnType data;

	data.lineId = line_id;

	if (dev_fd <= 0) {
		printf("Device %s is not accessible\n", dev_name);
		return VP_STATUS_FAILURE;
	}

	
	if (ioctl(dev_fd, VPAPI_MOD_IOX_CAL_LN, &data) < 0) {
		printf("ioctl(VPAPI_MOD_IOX_CAL_LN) failed\n");
		return VP_STATUS_FAILURE;
	}

	return data.status;
}

VpStatusType vpapi_set_line_state(VpLineIdType line_id, VpLineStateType state)
{
	VpApiModSetLnStType data;

	data.lineId = line_id;
	data.state = state;

	if (dev_fd <= 0) {
		printf("Device %s is not accessible\n", dev_name);
		return VP_STATUS_FAILURE;
	}

	
	if (ioctl(dev_fd, VPAPI_MOD_IOX_SET_LN_ST, &data) < 0) {
		printf("ioctl(VPAPI_MOD_IOX_SET_LN_ST) failed\n");
		return VP_STATUS_FAILURE;
	}

	return data.status;
}

VpStatusType vpapi_set_option(unsigned char line_request, VpLineIdType line_id, 
				VpDeviceIdType dev_id, VpOptionIdType option, void *value_p)
{
	VpApiModSetOptionType data;
	
	data.lineRequest = line_request;
	data.lineId = line_id;
	data.deviceId = dev_id;
	data.option = option;
	data.pValue = value_p;

	if (dev_fd <= 0) {
		printf("Device %s is not accessible\n", dev_name);
		return VP_STATUS_FAILURE;
	}

	
	if (ioctl(dev_fd, VPAPI_MOD_IOX_SET_OPTION, &data) < 0) {
		printf("ioctl(VPAPI_MOD_IOX_SET_OPTION) failed\n");
		return VP_STATUS_FAILURE;
	}

	return data.status;
}

bool vpapi_get_event(VpDeviceIdType dev_id, VpEventType *event_p)
{
	VpApiModGetEventType data;

	data.deviceId = dev_id;
	data.pEvent = event_p;

	if (dev_fd <= 0) {
		printf("Device %s is not accessible\n", dev_name);
		return false;
	}

	
	if (ioctl(dev_fd, VPAPI_MOD_IOX_GET_EVENT, &data) < 0) {
		printf("ioctl(VPAPI_MOD_IOX_GET_EVENT) failed\n");
		return false;
	}

	return data.newEvent;
}

int vpapi_check_event(void)
{
	fd_set ex_fds;
	struct timeval timeout = {0, 1};
	int ret;

	if (dev_fd <= 0) {
		printf("Device %s is not accessible\n", dev_name);
		return 1;
	}

	FD_ZERO(&ex_fds);
	FD_SET(dev_fd, &ex_fds);

	/* Wait for event  */
	ret = select(dev_fd+1, NULL, NULL, &ex_fds, &timeout);

	if(FD_ISSET(dev_fd, &ex_fds))
		return 0;
	else
		return 1;
}

int vpapi_battary_on(int vbh, int vbl, int vbp)
{
	VpModBatteryOnType data;

	data.vbh = vbh;
	data.vbl = vbl;
	data.vbp = vbp;

	if (dev_fd <= 0) {
		printf("Device %s is not accessible\n", dev_name);
		return -1;
	}

	if (ioctl(dev_fd, VPAPI_MOD_IOX_BATT_ON, &data) < 0) {
		printf("ioctl(VPAPI_MOD_IOX_BATT_ON) failed\n");
		return -1;
	}

	return data.status;
}

int vpapi_battery_off(void)
{
	VpModBatteryOffType data;

	if (dev_fd <= 0) {
		printf("Device %s is not accessible\n", dev_name);
		return -1;
	}

	if (ioctl(dev_fd, VPAPI_MOD_IOX_BATT_OFF, &data) < 0) {
		printf("ioctl(VPAPI_MOD_IOX_BATT_OFF) failed\n");
		return -1;
	}

	return data.status;
}

int vpapi_slic_reg_read(VpLineIdType line_id, unsigned char cmd, unsigned char cmd_len, unsigned char *buff)
{
	VpModRegOpType data;
	
	if (dev_fd <= 0) {
		printf("Device %s is not accessible\n", dev_name);
		return -1;
	}

	data.lineId = line_id;
	data.cmd = cmd;
	data.cmdLen = cmd_len;

	if (ioctl(dev_fd, VPAPI_MOD_IOX_REG_READ, &data) < 0) {
		printf("ioctl(VPAPI_MOD_IOX_REG_READ) failed\n");
		return -1;
	}

	memcpy(buff, data.buff, cmd_len);

	return 0;
}

int vpapi_slic_reg_write(VpLineIdType line_id, unsigned char cmd, unsigned char cmd_len, unsigned char *buff)
{
	VpModRegOpType data;
	
	if (dev_fd <= 0) {
		printf("Device %s is not accessible\n", dev_name);
		return -1;
	}

	data.lineId = line_id;
	data.cmd = cmd;
	data.cmdLen = cmd_len;
	memcpy(data.buff, buff, cmd_len);

	if (ioctl(dev_fd, VPAPI_MOD_IOX_REG_WRITE, &data) < 0) {
		printf("ioctl(VPAPI_MOD_IOX_REG_WRITE) failed\n");
		return -1;
	}

	return 0;
}