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/*
 *  TP-LINK TL-MR11U/TL-MR3040 board support
 *
 *  Copyright (C) 2011 dongyuqi <729650915@qq.com>
 *  Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
 *
 *  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 <asm/mach-ath79/ar71xx_regs.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 TL_MR11U_GPIO_LED_3G            27
#define TL_MR11U_GPIO_LED_WLAN          26
#define TL_MR11U_GPIO_LED_LAN           17

#define TL_MR11U_GPIO_BTN_WPS           20
#define TL_MR11U_GPIO_BTN_RESET         11

#define TL_MR11U_GPIO_USB_POWER         8
#define TL_MR3040_GPIO_USB_POWER        18

#define TL_MR3040_V2_GPIO_BTN_SW1       19
#define TL_MR3040_V2_GPIO_BTN_SW2       20

#define TL_MR11U_KEYS_POLL_INTERVAL     20      /* msecs */
#define TL_MR11U_KEYS_DEBOUNCE_INTERVAL (3 * TL_MR11U_KEYS_POLL_INTERVAL)

static const char *tl_mr11u_part_probes[] = {
        "tp-link",
        NULL,
};

static struct flash_platform_data tl_mr11u_flash_data = {
        .part_probes    = tl_mr11u_part_probes,
};

static struct gpio_led tl_mr11u_leds_gpio[] __initdata = {
        {
                .name           = "tp-link:green:3g",
                .gpio           = TL_MR11U_GPIO_LED_3G,
                .active_low     = 1,
        },
        {
                .name           = "tp-link:green:wlan",
                .gpio           = TL_MR11U_GPIO_LED_WLAN,
                .active_low     = 1,
        },
        {
                .name           = "tp-link:green:lan",
                .gpio           = TL_MR11U_GPIO_LED_LAN,
                .active_low     = 1,
        }
};

static struct gpio_keys_button tl_mr11u_gpio_keys[] __initdata = {
        {
                .desc           = "reset",
                .type           = EV_KEY,
                .code           = KEY_RESTART,
                .debounce_interval = TL_MR11U_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = TL_MR11U_GPIO_BTN_RESET,
                .active_low     = 0,
        },
        {
                .desc           = "wps",
                .type           = EV_KEY,
                .code           = KEY_WPS_BUTTON,
                .debounce_interval = TL_MR11U_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = TL_MR11U_GPIO_BTN_WPS,
                .active_low     = 0,
        },
};

static struct gpio_keys_button tl_mr3040_v2_gpio_keys[] __initdata = {
        {
                .desc           = "reset",
                .type           = EV_KEY,
                .code           = KEY_RESTART,
                .debounce_interval = TL_MR11U_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = TL_MR11U_GPIO_BTN_RESET,
                .active_low     = 0,
        },
        {
                .desc           = "sw1",
                .type           = EV_SW,
                .code           = BTN_0,
                .debounce_interval = TL_MR11U_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = TL_MR3040_V2_GPIO_BTN_SW1,
                .active_low     = 0,
        },
        {
                .desc           = "sw2",
                .type           = EV_SW,
                .code           = BTN_1,
                .debounce_interval = TL_MR11U_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = TL_MR3040_V2_GPIO_BTN_SW2,
                .active_low     = 0,
        }
};

static void __init common_setup(void)
{
        u8 *mac = (u8 *) KSEG1ADDR(0x1f01fc00);
        u8 *ee = (u8 *) KSEG1ADDR(0x1fff1000);

        /* Disable hardware control LAN1 and LAN2 LEDs, enabling GPIO14 and GPIO15 */
        ath79_gpio_function_disable(AR933X_GPIO_FUNC_ETH_SWITCH_LED1_EN |
                                    AR933X_GPIO_FUNC_ETH_SWITCH_LED2_EN);

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

        ath79_register_m25p80(&tl_mr11u_flash_data);
        ath79_register_leds_gpio(-1, ARRAY_SIZE(tl_mr11u_leds_gpio),
                                 tl_mr11u_leds_gpio);

        ath79_register_usb();

        ath79_init_mac(ath79_eth0_data.mac_addr, mac, 0);

        ath79_register_mdio(0, 0x0);
        ath79_register_eth(0);

        ath79_register_wmac(ee, mac);
}

static void __init tl_mr11u_setup(void)
{
        common_setup();

        ath79_register_gpio_keys_polled(-1, TL_MR11U_KEYS_POLL_INTERVAL,
                                        ARRAY_SIZE(tl_mr11u_gpio_keys),
                                        tl_mr11u_gpio_keys);
        gpio_request_one(TL_MR11U_GPIO_USB_POWER,
                         GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
                         "USB power");
}

MIPS_MACHINE(ATH79_MACH_TL_MR11U, "TL-MR11U", "TP-LINK TL-MR11U",
             tl_mr11u_setup);

static void __init tl_mr3040_setup(void)
{
        common_setup();

        ath79_register_gpio_keys_polled(-1, TL_MR11U_KEYS_POLL_INTERVAL,
                                        1, tl_mr11u_gpio_keys);
        gpio_request_one(TL_MR3040_GPIO_USB_POWER,
                         GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
                         "USB power");
}

MIPS_MACHINE(ATH79_MACH_TL_MR3040, "TL-MR3040", "TP-LINK TL-MR3040",
             tl_mr3040_setup);

static void __init tl_mr3040_v2_setup(void)
{
        common_setup();

        ath79_register_gpio_keys_polled(-1, TL_MR11U_KEYS_POLL_INTERVAL,
                                        ARRAY_SIZE(tl_mr3040_v2_gpio_keys),
                                        tl_mr3040_v2_gpio_keys);
        gpio_request_one(TL_MR3040_GPIO_USB_POWER,
                         GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
                         "USB power");
}

MIPS_MACHINE(ATH79_MACH_TL_MR3040_V2, "TL-MR3040-v2", "TP-LINK TL-MR3040 v2",
             tl_mr3040_v2_setup);