/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * This file is part of wl1271
 *
 * Copyright (C) 1998-2009 Texas Instruments. All rights reserved.
 * Copyright (C) 2008-2010 Nokia Corporation
 *
 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
 */

#ifndef __IO_H__
#define __IO_H__

#include <linux/irqreturn.h>

#define HW_ACCESS_MEMORY_MAX_RANGE      0x1FFC0

#define HW_PARTITION_REGISTERS_ADDR     0x1FFC0
#define HW_PART0_SIZE_ADDR              (HW_PARTITION_REGISTERS_ADDR)
#define HW_PART0_START_ADDR             (HW_PARTITION_REGISTERS_ADDR + 4)
#define HW_PART1_SIZE_ADDR              (HW_PARTITION_REGISTERS_ADDR + 8)
#define HW_PART1_START_ADDR             (HW_PARTITION_REGISTERS_ADDR + 12)
#define HW_PART2_SIZE_ADDR              (HW_PARTITION_REGISTERS_ADDR + 16)
#define HW_PART2_START_ADDR             (HW_PARTITION_REGISTERS_ADDR + 20)
#define HW_PART3_SIZE_ADDR              (HW_PARTITION_REGISTERS_ADDR + 24)
#define HW_PART3_START_ADDR             (HW_PARTITION_REGISTERS_ADDR + 28)

#define HW_ACCESS_REGISTER_SIZE         4

#define HW_ACCESS_PRAM_MAX_RANGE        0x3c000

struct wl1271;

void wlcore_disable_interrupts(struct wl1271 *wl);
void wlcore_disable_interrupts_nosync(struct wl1271 *wl);
void wlcore_enable_interrupts(struct wl1271 *wl);
void wlcore_synchronize_interrupts(struct wl1271 *wl);

void wl1271_io_reset(struct wl1271 *wl);
void wl1271_io_init(struct wl1271 *wl);
int wlcore_translate_addr(struct wl1271 *wl, int addr);

/* Raw target IO, address is not translated */
static inline int __must_check wlcore_raw_write(struct wl1271 *wl, int addr,
                                                void *buf, size_t len,
                                                bool fixed)
{
        int ret;

        if (test_bit(WL1271_FLAG_IO_FAILED, &wl->flags) ||
            WARN_ON((test_bit(WL1271_FLAG_IN_ELP, &wl->flags) &&
                     addr != HW_ACCESS_ELP_CTRL_REG)))
                return -EIO;

        ret = wl->if_ops->write(wl->dev, addr, buf, len, fixed);
        if (ret && wl->state != WLCORE_STATE_OFF)
                set_bit(WL1271_FLAG_IO_FAILED, &wl->flags);

        return ret;
}

static inline int __must_check wlcore_raw_read(struct wl1271 *wl, int addr,
                                               void *buf, size_t len,
                                               bool fixed)
{
        int ret;

        if (test_bit(WL1271_FLAG_IO_FAILED, &wl->flags) ||
            WARN_ON((test_bit(WL1271_FLAG_IN_ELP, &wl->flags) &&
                     addr != HW_ACCESS_ELP_CTRL_REG)))
                return -EIO;

        ret = wl->if_ops->read(wl->dev, addr, buf, len, fixed);
        if (ret && wl->state != WLCORE_STATE_OFF)
                set_bit(WL1271_FLAG_IO_FAILED, &wl->flags);

        return ret;
}

static inline int __must_check wlcore_raw_read_data(struct wl1271 *wl, int reg,
                                                    void *buf, size_t len,
                                                    bool fixed)
{
        return wlcore_raw_read(wl, wl->rtable[reg], buf, len, fixed);
}

static inline int __must_check wlcore_raw_write_data(struct wl1271 *wl, int reg,
                                                     void *buf, size_t len,
                                                     bool fixed)
{
        return wlcore_raw_write(wl, wl->rtable[reg], buf, len, fixed);
}

static inline int __must_check wlcore_raw_read32(struct wl1271 *wl, int addr,
                                                 u32 *val)
{
        int ret;

        ret = wlcore_raw_read(wl, addr, wl->buffer_32,
                              sizeof(*wl->buffer_32), false);
        if (ret < 0)
                return ret;

        if (val)
                *val = le32_to_cpu(*wl->buffer_32);

        return 0;
}

static inline int __must_check wlcore_raw_write32(struct wl1271 *wl, int addr,
                                                  u32 val)
{
        *wl->buffer_32 = cpu_to_le32(val);
        return wlcore_raw_write(wl, addr, wl->buffer_32,
                                sizeof(*wl->buffer_32), false);
}

static inline int __must_check wlcore_read(struct wl1271 *wl, int addr,
                                           void *buf, size_t len, bool fixed)
{
        int physical;

        physical = wlcore_translate_addr(wl, addr);

        return wlcore_raw_read(wl, physical, buf, len, fixed);
}

static inline int __must_check wlcore_write(struct wl1271 *wl, int addr,
                                            void *buf, size_t len, bool fixed)
{
        int physical;

        physical = wlcore_translate_addr(wl, addr);

        return wlcore_raw_write(wl, physical, buf, len, fixed);
}

static inline int __must_check wlcore_write_data(struct wl1271 *wl, int reg,
                                                 void *buf, size_t len,
                                                 bool fixed)
{
        return wlcore_write(wl, wl->rtable[reg], buf, len, fixed);
}

static inline int __must_check wlcore_read_data(struct wl1271 *wl, int reg,
                                                void *buf, size_t len,
                                                bool fixed)
{
        return wlcore_read(wl, wl->rtable[reg], buf, len, fixed);
}

static inline int __must_check wlcore_read_hwaddr(struct wl1271 *wl, int hwaddr,
                                                  void *buf, size_t len,
                                                  bool fixed)
{
        int physical;
        int addr;

        /* Convert from FW internal address which is chip arch dependent */
        addr = wl->ops->convert_hwaddr(wl, hwaddr);

        physical = wlcore_translate_addr(wl, addr);

        return wlcore_raw_read(wl, physical, buf, len, fixed);
}

static inline int __must_check wlcore_read32(struct wl1271 *wl, int addr,
                                             u32 *val)
{
        return wlcore_raw_read32(wl, wlcore_translate_addr(wl, addr), val);
}

static inline int __must_check wlcore_write32(struct wl1271 *wl, int addr,
                                              u32 val)
{
        return wlcore_raw_write32(wl, wlcore_translate_addr(wl, addr), val);
}

static inline int __must_check wlcore_read_reg(struct wl1271 *wl, int reg,
                                               u32 *val)
{
        return wlcore_raw_read32(wl,
                                 wlcore_translate_addr(wl, wl->rtable[reg]),
                                 val);
}

static inline int __must_check wlcore_write_reg(struct wl1271 *wl, int reg,
                                                u32 val)
{
        return wlcore_raw_write32(wl,
                                  wlcore_translate_addr(wl, wl->rtable[reg]),
                                  val);
}

static inline void wl1271_power_off(struct wl1271 *wl)
{
        int ret = 0;

        if (!test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags))
                return;

        if (wl->if_ops->power)
                ret = wl->if_ops->power(wl->dev, false);
        if (!ret)
                clear_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
}

static inline int wl1271_power_on(struct wl1271 *wl)
{
        int ret = 0;

        if (wl->if_ops->power)
                ret = wl->if_ops->power(wl->dev, true);
        if (ret == 0)
                set_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);

        return ret;
}

int wlcore_set_partition(struct wl1271 *wl,
                         const struct wlcore_partition_set *p);

bool wl1271_set_block_size(struct wl1271 *wl);

/* Functions from wl1271_main.c */

int wl1271_tx_dummy_packet(struct wl1271 *wl);

#endif