/*
 * Definitions for API from sdio common code (bcmsdh) to individual
 * host controller drivers.
 *
 * Copyright 1999-2016, Broadcom Corporation
 * All rights reserved,
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *    1. Redistributions of source code must retain the above copyright notice,
 *       this list of conditions and the following disclaimer.
 *    2. Redistributions in binary form must reproduce the above copyright notice,
 *       this list of conditions and the following disclaimer in the documentation
 *       and/or other materials provided with the distribution.
 *
 * This software is provided by the copyright holder "as is" and any express or
 * implied warranties, including, but not limited to, the implied warranties of
 * merchantability and fitness for a particular purpose are disclaimed. In no event
 * shall copyright holder be liable for any direct, indirect, incidental, special,
 * exemplary, or consequential damages (including, but not limited to, procurement
 * of substitute goods or services; loss of use, data, or profits; or business
 * interruption) however caused and on any theory of liability, whether in
 * contract, strict liability, or tort (including negligence or otherwise) arising
 * in any way out of the use of this software, even if advised of the possibility
 * of such damage
 *
 *
 * <<Broadcom-WL-IPTag/Open:>>
 *
 * $Id: bcmsdbus.h 514727 2014-11-12 03:02:48Z $
 */

#ifndef	_sdio_api_h_
#define	_sdio_api_h_


#define SDIOH_API_RC_SUCCESS                          (0x00)
#define SDIOH_API_RC_FAIL	                      (0x01)
#define SDIOH_API_SUCCESS(status) (status == 0)

#define SDIOH_READ              0	/* Read request */
#define SDIOH_WRITE             1	/* Write request */

#define SDIOH_DATA_FIX          0	/* Fixed addressing */
#define SDIOH_DATA_INC          1	/* Incremental addressing */

#define SDIOH_CMD_TYPE_NORMAL   0       /* Normal command */
#define SDIOH_CMD_TYPE_APPEND   1       /* Append command */
#define SDIOH_CMD_TYPE_CUTTHRU  2       /* Cut-through command */

#define SDIOH_DATA_PIO          0       /* PIO mode */
#define SDIOH_DATA_DMA          1       /* DMA mode */

/* Max number of glommed pkts */
#ifdef CUSTOM_MAX_TXGLOM_SIZE
#define SDPCM_MAXGLOM_SIZE  CUSTOM_MAX_TXGLOM_SIZE
#else
#define SDPCM_MAXGLOM_SIZE	36
#endif /* CUSTOM_MAX_TXGLOM_SIZE */

#define SDPCM_TXGLOM_CPY 0			/* SDIO 2.0 should use copy mode */
#define SDPCM_TXGLOM_MDESC	1		/* SDIO 3.0 should use multi-desc mode */

#ifdef CUSTOM_DEF_TXGLOM_SIZE
#define SDPCM_DEFGLOM_SIZE  CUSTOM_DEF_TXGLOM_SIZE
#else
#define SDPCM_DEFGLOM_SIZE SDPCM_MAXGLOM_SIZE
#endif /* CUSTOM_DEF_TXGLOM_SIZE */

#if SDPCM_DEFGLOM_SIZE > SDPCM_MAXGLOM_SIZE
#warning "SDPCM_DEFGLOM_SIZE cannot be higher than SDPCM_MAXGLOM_SIZE!!"
#undef SDPCM_DEFGLOM_SIZE
#define SDPCM_DEFGLOM_SIZE SDPCM_MAXGLOM_SIZE
#endif

#ifdef PKT_STATICS
typedef struct pkt_statics {
	uint16	event_count;
	uint32	event_size;
	uint16	ctrl_count;
	uint32	ctrl_size;
	uint32	data_count;
	uint32	data_size;
	uint32	glom_cnt[SDPCM_MAXGLOM_SIZE];
	uint16	glom_max;
	uint16	glom_count;
	uint32	glom_size;
	uint16	test_count;
	uint32	test_size;
} pkt_statics_t;
#endif

typedef int SDIOH_API_RC;

/* SDio Host structure */
typedef struct sdioh_info sdioh_info_t;

/* callback function, taking one arg */
typedef void (*sdioh_cb_fn_t)(void *);

extern SDIOH_API_RC sdioh_interrupt_register(sdioh_info_t *si, sdioh_cb_fn_t fn, void *argh);
extern SDIOH_API_RC sdioh_interrupt_deregister(sdioh_info_t *si);

/* query whether SD interrupt is enabled or not */
extern SDIOH_API_RC sdioh_interrupt_query(sdioh_info_t *si, bool *onoff);

/* enable or disable SD interrupt */
extern SDIOH_API_RC sdioh_interrupt_set(sdioh_info_t *si, bool enable_disable);

#if defined(DHD_DEBUG)
extern bool sdioh_interrupt_pending(sdioh_info_t *si);
#endif

/* read or write one byte using cmd52 */
extern SDIOH_API_RC sdioh_request_byte(sdioh_info_t *si, uint rw, uint fnc, uint addr, uint8 *byte);

/* read or write 2/4 bytes using cmd53 */
extern SDIOH_API_RC sdioh_request_word(sdioh_info_t *si, uint cmd_type, uint rw, uint fnc,
	uint addr, uint32 *word, uint nbyte);

/* read or write any buffer using cmd53 */
extern SDIOH_API_RC sdioh_request_buffer(sdioh_info_t *si, uint pio_dma, uint fix_inc,
	uint rw, uint fnc_num, uint32 addr, uint regwidth, uint32 buflen, uint8 *buffer,
	void *pkt);

/* get cis data */
extern SDIOH_API_RC sdioh_cis_read(sdioh_info_t *si, uint fuc, uint8 *cis, uint32 length);

extern SDIOH_API_RC sdioh_cfg_read(sdioh_info_t *si, uint fuc, uint32 addr, uint8 *data);
extern SDIOH_API_RC sdioh_cfg_write(sdioh_info_t *si, uint fuc, uint32 addr, uint8 *data);

/* query number of io functions */
extern uint sdioh_query_iofnum(sdioh_info_t *si);

/* handle iovars */
extern int sdioh_iovar_op(sdioh_info_t *si, const char *name,
                          void *params, int plen, void *arg, int len, bool set);

/* Issue abort to the specified function and clear controller as needed */
extern int sdioh_abort(sdioh_info_t *si, uint fnc);

/* Start and Stop SDIO without re-enumerating the SD card. */
extern int sdioh_start(sdioh_info_t *si, int stage);
extern int sdioh_stop(sdioh_info_t *si);

/* Wait system lock free */
extern int sdioh_waitlockfree(sdioh_info_t *si);

/* Reset and re-initialize the device */
extern int sdioh_sdio_reset(sdioh_info_t *si);


#if defined(BCMSDIOH_STD)
	#define SDIOH_SLEEP_ENABLED
#endif
extern SDIOH_API_RC sdioh_sleep(sdioh_info_t *si, bool enab);

/* GPIO support */
extern SDIOH_API_RC sdioh_gpio_init(sdioh_info_t *sd);
extern bool sdioh_gpioin(sdioh_info_t *sd, uint32 gpio);
extern SDIOH_API_RC sdioh_gpioouten(sdioh_info_t *sd, uint32 gpio);
extern SDIOH_API_RC sdioh_gpioout(sdioh_info_t *sd, uint32 gpio, bool enab);

extern uint sdioh_set_mode(sdioh_info_t *sd, uint mode);
#if defined(SWTXGLOM)
/* read or write any buffer using cmd53 */
extern SDIOH_API_RC sdioh_request_swtxglom_buffer(sdioh_info_t *si, uint pio_dma, uint fix_inc,
	uint rw, uint fnc_num, uint32 addr, uint regwidth, uint32 buflen, uint8 *buffer,
	void *pkt);
extern void sdioh_glom_post(sdioh_info_t *sd, uint8 *frame, void *pkt, uint len);
extern void sdioh_glom_clear(sdioh_info_t *sd);
#endif

#endif /* _sdio_api_h_ */