/*
 * Copyright 2008 Advanced Micro Devices, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Author: Stanislaw Skowronek
 */

#ifndef ATOM_H
#define ATOM_H

#include <linux/mutex.h>
#include <linux/types.h>

#define ATOM_BIOS_MAGIC         0xAA55
#define ATOM_ATI_MAGIC_PTR      0x30
#define ATOM_ATI_MAGIC          " 761295520"
#define ATOM_ROM_TABLE_PTR      0x48

#define ATOM_ROM_MAGIC          "ATOM"
#define ATOM_ROM_MAGIC_PTR      4

#define ATOM_ROM_MSG_PTR        0x10
#define ATOM_ROM_CMD_PTR        0x1E
#define ATOM_ROM_DATA_PTR       0x20

#define ATOM_CMD_INIT           0
#define ATOM_CMD_SETSCLK        0x0A
#define ATOM_CMD_SETMCLK        0x0B
#define ATOM_CMD_SETPCLK        0x0C
#define ATOM_CMD_SPDFANCNTL     0x39

#define ATOM_DATA_FWI_PTR       0xC
#define ATOM_DATA_IIO_PTR       0x32

#define ATOM_FWI_DEFSCLK_PTR    8
#define ATOM_FWI_DEFMCLK_PTR    0xC
#define ATOM_FWI_MAXSCLK_PTR    0x24
#define ATOM_FWI_MAXMCLK_PTR    0x28

#define ATOM_CT_SIZE_PTR        0
#define ATOM_CT_WS_PTR          4
#define ATOM_CT_PS_PTR          5
#define ATOM_CT_PS_MASK         0x7F
#define ATOM_CT_CODE_PTR        6

#define ATOM_OP_CNT             123
#define ATOM_OP_EOT             91

#define ATOM_CASE_MAGIC         0x63
#define ATOM_CASE_END           0x5A5A

#define ATOM_ARG_REG            0
#define ATOM_ARG_PS             1
#define ATOM_ARG_WS             2
#define ATOM_ARG_FB             3
#define ATOM_ARG_ID             4
#define ATOM_ARG_IMM            5
#define ATOM_ARG_PLL            6
#define ATOM_ARG_MC             7

#define ATOM_SRC_DWORD          0
#define ATOM_SRC_WORD0          1
#define ATOM_SRC_WORD8          2
#define ATOM_SRC_WORD16         3
#define ATOM_SRC_BYTE0          4
#define ATOM_SRC_BYTE8          5
#define ATOM_SRC_BYTE16         6
#define ATOM_SRC_BYTE24         7

#define ATOM_WS_QUOTIENT        0x40
#define ATOM_WS_REMAINDER       0x41
#define ATOM_WS_DATAPTR         0x42
#define ATOM_WS_SHIFT           0x43
#define ATOM_WS_OR_MASK         0x44
#define ATOM_WS_AND_MASK        0x45
#define ATOM_WS_FB_WINDOW       0x46
#define ATOM_WS_ATTRIBUTES      0x47
#define ATOM_WS_REGPTR          0x48

#define ATOM_IIO_NOP            0
#define ATOM_IIO_START          1
#define ATOM_IIO_READ           2
#define ATOM_IIO_WRITE          3
#define ATOM_IIO_CLEAR          4
#define ATOM_IIO_SET            5
#define ATOM_IIO_MOVE_INDEX     6
#define ATOM_IIO_MOVE_ATTR      7
#define ATOM_IIO_MOVE_DATA      8
#define ATOM_IIO_END            9

#define ATOM_IO_MM              0
#define ATOM_IO_PCI             1
#define ATOM_IO_SYSIO           2
#define ATOM_IO_IIO             0x80

struct card_info {
        struct drm_device *dev;
        void (* reg_write)(struct card_info *, uint32_t, uint32_t);   /*  filled by driver */
        uint32_t (* reg_read)(struct card_info *, uint32_t);          /*  filled by driver */
        void (* ioreg_write)(struct card_info *, uint32_t, uint32_t);   /*  filled by driver */
        uint32_t (* ioreg_read)(struct card_info *, uint32_t);          /*  filled by driver */
        void (* mc_write)(struct card_info *, uint32_t, uint32_t);   /*  filled by driver */
        uint32_t (* mc_read)(struct card_info *, uint32_t);          /*  filled by driver */
        void (* pll_write)(struct card_info *, uint32_t, uint32_t);   /*  filled by driver */
        uint32_t (* pll_read)(struct card_info *, uint32_t);          /*  filled by driver */
};

struct atom_context {
        struct card_info *card;
        struct mutex mutex;
        struct mutex scratch_mutex;
        void *bios;
        uint32_t cmd_table, data_table;
        uint16_t *iio;

        uint16_t data_block;
        uint32_t fb_base;
        uint32_t divmul[2];
        uint16_t io_attr;
        uint16_t reg_block;
        uint8_t shift;
        int cs_equal, cs_above;
        int io_mode;
        uint32_t *scratch;
        int scratch_size_bytes;
};

extern int atom_debug;

struct atom_context *atom_parse(struct card_info *, void *);
int atom_execute_table(struct atom_context *, int, uint32_t *, int);
int atom_execute_table_scratch_unlocked(struct atom_context *, int, uint32_t *, int);
int atom_asic_init(struct atom_context *);
void atom_destroy(struct atom_context *);
bool atom_parse_data_header(struct atom_context *ctx, int index, uint16_t *size,
                            uint8_t *frev, uint8_t *crev, uint16_t *data_start);
bool atom_parse_cmd_header(struct atom_context *ctx, int index,
                           uint8_t *frev, uint8_t *crev);
int atom_allocate_fb_scratch(struct atom_context *ctx);

struct i2c_msg;
struct i2c_adapter;
int radeon_atom_hw_i2c_xfer(struct i2c_adapter *i2c_adap,
                            struct i2c_msg *msgs, int num);
u32 radeon_atom_hw_i2c_func(struct i2c_adapter *adap);

#include "atom-types.h"
#include "atombios.h"
#include "ObjectID.h"

#endif