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/*
 * Copyright (C) 2008 Freescale Semiconductor, Inc.
 *		Dave Liu <daveliu@freescale.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 *
 */

#ifndef __FIS_H__
#define __FIS_H__
/*
* Register - Host to Device FIS
*/
typedef struct sata_fis_h2d {
	u8 fis_type;
	u8 pm_port_c;
	u8 command;
	u8 features;
	u8 lba_low;
	u8 lba_mid;
	u8 lba_high;
	u8 device;
	u8 lba_low_exp;
	u8 lba_mid_exp;
	u8 lba_high_exp;
	u8 features_exp;
	u8 sector_count;
	u8 sector_count_exp;
	u8 res1;
	u8 control;
	u8 res2[4];
} __attribute__ ((packed)) sata_fis_h2d_t;

/*
* Register - Host to Device FIS for read/write FPDMA queued
*/
typedef struct sata_fis_h2d_ncq {
	u8 fis_type;
	u8 pm_port_c;
	u8 command;
	u8 sector_count_low;
	u8 lba_low;
	u8 lba_mid;
	u8 lba_high;
	u8 device;
	u8 lba_low_exp;
	u8 lba_mid_exp;
	u8 lba_high_exp;
	u8 sector_count_high;
	u8 tag;
	u8 res1;
	u8 res2;
	u8 control;
	u8 res3[4];
} __attribute__ ((packed)) sata_fis_h2d_ncq_t;

/*
* Register - Device to Host FIS
*/
typedef struct sata_fis_d2h {
	u8 fis_type;
	u8 pm_port_i;
	u8 status;
	u8 error;
	u8 lba_low;
	u8 lba_mid;
	u8 lba_high;
	u8 device;
	u8 lba_low_exp;
	u8 lba_mid_exp;
	u8 lba_high_exp;
	u8 res1;
	u8 sector_count;
	u8 sector_count_exp;
	u8 res2[2];
	u8 res3[4];
} __attribute__ ((packed)) sata_fis_d2h_t;

/*
* DMA Setup - Device to Host or Host to Device FIS
*/
typedef struct sata_fis_dma_setup {
	u8 fis_type;
	u8 pm_port_dir_int_act;
	u8 res1;
	u8 res2;
	u32 dma_buffer_id_low;
	u32 dma_buffer_id_high;
	u32 res3;
	u32 dma_buffer_offset;
	u32 dma_transfer_count;
	u32 res4;
} __attribute__ ((packed)) sata_fis_dma_setup_t;

/*
* PIO Setup - Device to Host FIS
*/
typedef struct sata_fis_pio_setup {
	u8 fis_type;
	u8 pm_port_dir_int;
	u8 status;
	u8 error;
	u8 lba_low;
	u8 lba_mid;
	u8 lba_high;
	u8 res1;
	u8 lba_low_exp;
	u8 lba_mid_exp;
	u8 lba_high_exp;
	u8 res2;
	u8 sector_count;
	u8 sector_count_exp;
	u8 res3;
	u8 e_status;
	u16 transfer_count;
	u16 res4;
} __attribute__ ((packed)) sata_fis_pio_setup_t;

/*
* Data - Host to Device or Device to Host FIS
*/
typedef struct sata_fis_data {
	u8 fis_type;
	u8 pm_port;
	u8 res1;
	u8 res2;
	u32 data[2048];
} __attribute__ ((packed)) sata_fis_data_t;

/* fis_type - SATA FIS type
 */
enum sata_fis_type {
	SATA_FIS_TYPE_REGISTER_H2D		= 0x27,
	SATA_FIS_TYPE_REGISTER_D2H		= 0x34,
	SATA_FIS_TYPE_DMA_ACT_D2H		= 0x39,
	SATA_FIS_TYPE_DMA_SETUP_BI		= 0x41,
	SATA_FIS_TYPE_DATA_BI			= 0x46,
	SATA_FIS_TYPE_BIST_ACT_BI		= 0x58,
	SATA_FIS_TYPE_PIO_SETUP_D2H		= 0x5F,
	SATA_FIS_TYPE_SET_DEVICE_BITS_D2H	= 0xA1,
};

#endif	/* __FIS_H__ */