// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/arch/arm/mach-omap1/board-sx1.c
*
* Modified from board-generic.c
*
* Support for the Siemens SX1 mobile phone.
*
* Original version : Vladimir Ananiev (Vovan888-at-gmail com)
*
* Maintainters : Vladimir Ananiev (aka Vovan888), Sergge
*               oslik.ru
*/
#include <linux/gpio/machine.h>
#include <linux/gpio/consumer.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/platform_device.h>
#include <linux/notifier.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/types.h>
#include <linux/i2c.h>
#include <linux/errno.h>
#include <linux/export.h>
#include <linux/omapfb.h>
#include <linux/platform_data/keypad-omap.h>
#include <linux/omap-dma.h>
#include "tc.h"

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>

#include "flash.h"
#include "mux.h"
#include "board-sx1.h"
#include "hardware.h"
#include "usb.h"
#include "common.h"

/* Write to I2C device */
int sx1_i2c_write_byte(u8 devaddr, u8 regoffset, u8 value)
{
        struct i2c_adapter *adap;
        int err;
        struct i2c_msg msg[1];
        unsigned char data[2];

        adap = i2c_get_adapter(0);
        if (!adap)
                return -ENODEV;
        msg->addr = devaddr;    /* I2C address of chip */
        msg->flags = 0;
        msg->len = 2;
        msg->buf = data;
        data[0] = regoffset;    /* register num */
        data[1] = value;                /* register data */
        err = i2c_transfer(adap, msg, 1);
        i2c_put_adapter(adap);
        if (err >= 0)
                return 0;
        return err;
}

/* Read from I2C device */
int sx1_i2c_read_byte(u8 devaddr, u8 regoffset, u8 *value)
{
        struct i2c_adapter *adap;
        int err;
        struct i2c_msg msg[1];
        unsigned char data[2];

        adap = i2c_get_adapter(0);
        if (!adap)
                return -ENODEV;

        msg->addr = devaddr;    /* I2C address of chip */
        msg->flags = 0;
        msg->len = 1;
        msg->buf = data;
        data[0] = regoffset;    /* register num */
        err = i2c_transfer(adap, msg, 1);

        msg->addr = devaddr;    /* I2C address */
        msg->flags = I2C_M_RD;
        msg->len = 1;
        msg->buf = data;
        err = i2c_transfer(adap, msg, 1);
        *value = data[0];
        i2c_put_adapter(adap);

        if (err >= 0)
                return 0;
        return err;
}
/* set keyboard backlight intensity */
int sx1_setkeylight(u8 keylight)
{
        if (keylight > SOFIA_MAX_LIGHT_VAL)
                keylight = SOFIA_MAX_LIGHT_VAL;
        return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_KEYLIGHT_REG, keylight);
}
/* get current keylight intensity */
int sx1_getkeylight(u8 * keylight)
{
        return sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_KEYLIGHT_REG, keylight);
}
/* set LCD backlight intensity */
int sx1_setbacklight(u8 backlight)
{
        if (backlight > SOFIA_MAX_LIGHT_VAL)
                backlight = SOFIA_MAX_LIGHT_VAL;
        return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_BACKLIGHT_REG,
                                  backlight);
}
/* get current LCD backlight intensity */
int sx1_getbacklight (u8 * backlight)
{
        return sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_BACKLIGHT_REG,
                                 backlight);
}
/* set LCD backlight power on/off */
int sx1_setmmipower(u8 onoff)
{
        int err;
        u8 dat = 0;
        err = sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat);
        if (err < 0)
                return err;
        if (onoff)
                dat |= SOFIA_MMILIGHT_POWER;
        else
                dat &= ~SOFIA_MMILIGHT_POWER;
        return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat);
}

/* set USB power on/off */
int sx1_setusbpower(u8 onoff)
{
        int err;
        u8 dat = 0;
        err = sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat);
        if (err < 0)
                return err;
        if (onoff)
                dat |= SOFIA_USB_POWER;
        else
                dat &= ~SOFIA_USB_POWER;
        return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat);
}

EXPORT_SYMBOL(sx1_setkeylight);
EXPORT_SYMBOL(sx1_getkeylight);
EXPORT_SYMBOL(sx1_setbacklight);
EXPORT_SYMBOL(sx1_getbacklight);
EXPORT_SYMBOL(sx1_setmmipower);
EXPORT_SYMBOL(sx1_setusbpower);

/*----------- Keypad -------------------------*/

static const unsigned int sx1_keymap[] = {
        KEY(3, 5, GROUP_0 | 117), /* camera Qt::Key_F17 */
        KEY(4, 0, GROUP_0 | 114), /* voice memo Qt::Key_F14 */
        KEY(4, 1, GROUP_2 | 114), /* voice memo */
        KEY(4, 2, GROUP_3 | 114), /* voice memo */
        KEY(0, 0, GROUP_1 | KEY_F12),   /* red button Qt::Key_Hangup */
        KEY(3, 4, GROUP_1 | KEY_LEFT),
        KEY(3, 2, GROUP_1 | KEY_DOWN),
        KEY(3, 1, GROUP_1 | KEY_RIGHT),
        KEY(3, 0, GROUP_1 | KEY_UP),
        KEY(3, 3, GROUP_1 | KEY_POWER), /* joystick press or Qt::Key_Select */
        KEY(0, 5, GROUP_1 | KEY_1),
        KEY(0, 4, GROUP_1 | KEY_2),
        KEY(0, 3, GROUP_1 | KEY_3),
        KEY(4, 3, GROUP_1 | KEY_4),
        KEY(4, 4, GROUP_1 | KEY_5),
        KEY(4, 5, GROUP_1 | KEY_KPASTERISK),/* "*" */
        KEY(1, 4, GROUP_1 | KEY_6),
        KEY(1, 5, GROUP_1 | KEY_7),
        KEY(1, 3, GROUP_1 | KEY_8),
        KEY(2, 3, GROUP_1 | KEY_9),
        KEY(2, 5, GROUP_1 | KEY_0),
        KEY(2, 4, GROUP_1 | 113), /* # F13 Toggle input method Qt::Key_F13 */
        KEY(1, 0, GROUP_1 | KEY_F11),   /* green button Qt::Key_Call */
        KEY(2, 1, GROUP_1 | KEY_YEN),   /* left soft Qt::Key_Context1 */
        KEY(2, 2, GROUP_1 | KEY_F8),    /* right soft Qt::Key_Back */
        KEY(1, 2, GROUP_1 | KEY_LEFTSHIFT), /* shift */
        KEY(1, 1, GROUP_1 | KEY_BACKSPACE), /* C (clear) */
        KEY(2, 0, GROUP_1 | KEY_F7),    /* menu Qt::Key_Menu */
};

static struct resource sx1_kp_resources[] = {
        [0] = {
                .start  = INT_KEYBOARD,
                .end    = INT_KEYBOARD,
                .flags  = IORESOURCE_IRQ,
        },
};

static const struct matrix_keymap_data sx1_keymap_data = {
        .keymap         = sx1_keymap,
        .keymap_size    = ARRAY_SIZE(sx1_keymap),
};

static struct omap_kp_platform_data sx1_kp_data = {
        .rows           = 6,
        .cols           = 6,
        .keymap_data    = &sx1_keymap_data,
        .delay  = 80,
};

static struct platform_device sx1_kp_device = {
        .name           = "omap-keypad",
        .id             = -1,
        .dev            = {
                .platform_data = &sx1_kp_data,
        },
        .num_resources  = ARRAY_SIZE(sx1_kp_resources),
        .resource       = sx1_kp_resources,
};

/*----------- MTD -------------------------*/

static struct mtd_partition sx1_partitions[] = {
        /* bootloader (U-Boot, etc) in first sector */
        {
                .name           = "bootloader",
                .offset         = 0x01800000,
                .size           = SZ_128K,
                .mask_flags     = MTD_WRITEABLE, /* force read-only */
        },
        /* bootloader params in the next sector */
        {
                .name           = "params",
                .offset         = MTDPART_OFS_APPEND,
                .size           = SZ_128K,
                .mask_flags     = 0,
        },
        /* kernel */
        {
                .name           = "kernel",
                .offset         = MTDPART_OFS_APPEND,
                .size           = SZ_2M - 2 * SZ_128K,
                .mask_flags     = 0
        },
        /* file system */
        {
                .name           = "filesystem",
                .offset         = MTDPART_OFS_APPEND,
                .size           = MTDPART_SIZ_FULL,
                .mask_flags     = 0
        }
};

static struct physmap_flash_data sx1_flash_data = {
        .width          = 2,
        .set_vpp        = omap1_set_vpp,
        .parts          = sx1_partitions,
        .nr_parts       = ARRAY_SIZE(sx1_partitions),
};

/* MTD Intel 4000 flash - new flashes */
static struct resource sx1_new_flash_resource = {
        .start          = OMAP_CS0_PHYS,
        .end            = OMAP_CS0_PHYS + SZ_32M - 1,
        .flags          = IORESOURCE_MEM,
};

static struct platform_device sx1_flash_device = {
        .name           = "physmap-flash",
        .id             = 0,
        .dev            = {
                .platform_data  = &sx1_flash_data,
        },
        .num_resources  = 1,
        .resource       = &sx1_new_flash_resource,
};

/*----------- USB -------------------------*/

static struct omap_usb_config sx1_usb_config __initdata = {
        .otg            = 0,
        .register_dev   = 1,
        .register_host  = 0,
        .hmc_mode       = 0,
        .pins[0]        = 2,
        .pins[1]        = 0,
        .pins[2]        = 0,
};

/*----------- LCD -------------------------*/

static const struct omap_lcd_config sx1_lcd_config __initconst = {
        .ctrl_name      = "internal",
};

/*-----------------------------------------*/
static struct platform_device *sx1_devices[] __initdata = {
        &sx1_flash_device,
        &sx1_kp_device,
};

/*-----------------------------------------*/

static struct gpiod_lookup_table sx1_gpio_table = {
        .dev_id = NULL,
        .table = {
                GPIO_LOOKUP("gpio-0-15", 1, "irda_off",
                            GPIO_ACTIVE_HIGH),
                GPIO_LOOKUP("gpio-0-15", 11, "switch",
                            GPIO_ACTIVE_HIGH),
                GPIO_LOOKUP("gpio-0-15", 15, "usb_on",
                            GPIO_ACTIVE_HIGH),
                { }
        },
};

static void __init omap_sx1_init(void)
{
        struct gpio_desc *d;

        /* mux pins for uarts */
        omap_cfg_reg(UART1_TX);
        omap_cfg_reg(UART1_RTS);
        omap_cfg_reg(UART2_TX);
        omap_cfg_reg(UART2_RTS);
        omap_cfg_reg(UART3_TX);
        omap_cfg_reg(UART3_RX);

        platform_add_devices(sx1_devices, ARRAY_SIZE(sx1_devices));

        omap_serial_init();
        omap_register_i2c_bus(1, 100, NULL, 0);
        omap1_usb_init(&sx1_usb_config);
        sx1_mmc_init();
        gpiod_add_lookup_table(&sx1_gpio_table);

        /* turn on USB power */
        /* sx1_setusbpower(1); can't do it here because i2c is not ready */
        d = gpiod_get(NULL, "irda_off", GPIOD_OUT_HIGH);
        if (IS_ERR(d))
                pr_err("Unable to get IRDA OFF GPIO descriptor\n");
        else
                gpiod_put(d);
        d = gpiod_get(NULL, "switch", GPIOD_OUT_LOW);
        if (IS_ERR(d))
                pr_err("Unable to get SWITCH GPIO descriptor\n");
        else
                gpiod_put(d);
        d = gpiod_get(NULL, "usb_on", GPIOD_OUT_LOW);
        if (IS_ERR(d))
                pr_err("Unable to get USB ON GPIO descriptor\n");
        else
                gpiod_put(d);

        omapfb_set_lcd_config(&sx1_lcd_config);
}

MACHINE_START(SX1, "OMAP310 based Siemens SX1")
        .atag_offset    = 0x100,
        .map_io         = omap1_map_io,
        .init_early     = omap1_init_early,
        .init_irq       = omap1_init_irq,
        .init_machine   = omap_sx1_init,
        .init_late      = omap1_init_late,
        .init_time      = omap1_timer_init,
        .restart        = omap1_restart,
MACHINE_END