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/*
 *  PQI Air Pen stick support
 *
 *  Copyright (C) 2016 YuheiOKAWA <tochiro.srchack@gmail.com>
 *
 *  This program is free software; you can redistribute it and/or modify it
 *  under the terms of the GNU General Public License version 2 as published
 *  by the Free Software Foundation.
*/

#include <linux/gpio.h>

#include <asm/mach-ath79/ath79.h>

#include "common.h"
#include "dev-eth.h"
#include "dev-gpio-buttons.h"
#include "dev-leds-gpio.h"
#include "dev-m25p80.h"
#include "dev-usb.h"
#include "dev-wmac.h"
#include "machtypes.h"

#define PQI_AIR_PEN_GPIO_LED_WLAN               0
#define PQI_AIR_PEN_GPIO_LED_WPS                23

#define PQI_AIR_PEN_GPIO_BTN_WPS                22
#define PQI_AIR_PEN_GPIO_BTN_RESET              12

#define PQI_AIR_PEN_KEYS_POLL_INTERVAL          20 /* msecs */
#define PQI_AIR_PEN_KEYS_DEBOUNCE_INTERVAL      (3 * PQI_AIR_PEN_KEYS_POLL_INTERVAL)

#define PQI_AIR_PEN_WMAC_CALDATA_OFFSET         0x1000
#define PQI_AIR_PEN_LAN_MAC_OFFSET              0x1002
#define PQI_AIR_PEN_WMAC_MAC_OFFSET             0x1002

static struct gpio_led pqi_air_pen_leds_gpio[] __initdata = {
        {
                .name = "pqi-air-pen:blue:wlan",
                .gpio = PQI_AIR_PEN_GPIO_LED_WLAN,
                .active_low = 0,
        },
        {
                .name = "pqi-air-pen:blue:wps",
                .gpio = PQI_AIR_PEN_GPIO_LED_WPS,
                .active_low = 0,
        },
};

static struct gpio_keys_button pqi_air_pen_gpio_keys[] __initdata = {
        {
                .desc = "wps",
                .type = EV_KEY,
                .code = KEY_WPS_BUTTON,
                .debounce_interval = PQI_AIR_PEN_KEYS_DEBOUNCE_INTERVAL,
                .gpio = PQI_AIR_PEN_GPIO_BTN_WPS,
                .active_low = 0,
        },
        {
                .desc = "reset",
                .type = EV_KEY,
                .code = KEY_RESTART,
                .debounce_interval = PQI_AIR_PEN_KEYS_DEBOUNCE_INTERVAL,
                .gpio = PQI_AIR_PEN_GPIO_BTN_RESET,
                .active_low = 0,
        },
};

static void __init pqi_air_pen_setup(void)
{
        /* ART base address */
        u8 *art = (u8 *) KSEG1ADDR(0x9f050000);

        /* register flash. */
        ath79_register_m25p80(NULL);

        /* register wireless mac with cal data */
        ath79_register_wmac(art + PQI_AIR_PEN_WMAC_CALDATA_OFFSET, art + PQI_AIR_PEN_WMAC_MAC_OFFSET);

        /* false PHY_SWAP and PHY_ADDR_SWAP bits */
        ath79_setup_ar933x_phy4_switch(false, false);

        /* register gpio LEDs and keys */
        ath79_register_leds_gpio(-1, ARRAY_SIZE(pqi_air_pen_leds_gpio),
                                 pqi_air_pen_leds_gpio);
        ath79_register_gpio_keys_polled(-1, PQI_AIR_PEN_KEYS_POLL_INTERVAL,
                                        ARRAY_SIZE(pqi_air_pen_gpio_keys),
                                        pqi_air_pen_gpio_keys);

        /* enable usb */
        ath79_register_usb();
        
        /* register eth0 as LAN */
        ath79_init_mac(ath79_eth0_data.mac_addr, art + PQI_AIR_PEN_LAN_MAC_OFFSET, 0);
        ath79_register_mdio(0, 0x0);
        ath79_register_eth(0);
}

MIPS_MACHINE(ATH79_MACH_PQI_AIR_PEN, "PQI-AIR-PEN", "PQI Air Pen",pqi_air_pen_setup);