drivers/net/wireless/bcmdhd/dhd_pcie.h

/*
 * Linux DHD Bus Module for PCIE
 *
 * Copyright (C) 1999-2016, Broadcom Corporation
 * 
 *      Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2 (the "GPL"),
 * available at http://www.broadcom.com/licenses/GPLv2.php, with the
 * following added to such license:
 * 
 *      As a special exception, the copyright holders of this software give you
 * permission to link this software with independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions of
 * the license of that module.  An independent module is a module which is not
 * derived from this software.  The special exception does not apply to any
 * modifications of the software.
 * 
 *      Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
 * $Id: dhd_pcie.h 452261 2014-01-29 19:30:23Z $
 */


#ifndef dhd_pcie_h
#define dhd_pcie_h

#include <bcmpcie.h>

/* defines */

#define PCMSGBUF_HDRLEN 20
#define DONGLE_REG_MAP_SIZE (32 * 1024)
#define DONGLE_TCM_MAP_SIZE (4096 * 1024)
#define DONGLE_MIN_MEMSIZE (128 *1024)
#ifdef DHD_DEBUG
#define DHD_PCIE_SUCCESS 0
#define DHD_PCIE_FAILURE 1
#endif /* DHD_DEBUG */
#define	REMAP_ENAB(bus)			((bus)->remap)
#define	REMAP_ISADDR(bus, a)		(((a) >= ((bus)->orig_ramsize)) && ((a) < ((bus)->ramsize)))


/* user defined data structures */
#ifdef DHD_DEBUG
/* Device console log buffer state */
#define CONSOLE_LINE_MAX	192
#define CONSOLE_BUFFER_MAX	2024


typedef struct dhd_console {
	 uint		count;	/* Poll interval msec counter */
	 uint		log_addr;		 /* Log struct address (fixed) */
	 hndrte_log_t	 log;			 /* Log struct (host copy) */
	 uint		 bufsize;		 /* Size of log buffer */
	 uint8		 *buf;			 /* Log buffer (host copy) */
	 uint		 last;			 /* Last buffer read index */
} dhd_console_t;
#endif /* DHD_DEBUG */

typedef struct dhd_bus {
	dhd_pub_t	*dhd;
	struct pci_dev  *dev;		/* pci device handle */
	si_t		*sih;			/* Handle for SI calls */
	char		*vars;			/* Variables (from CIS and/or other) */
	uint		varsz;			/* Size of variables buffer */
	uint32		sbaddr;			/* Current SB window pointer (-1, invalid) */
	sbpcieregs_t	*reg;			/* Registers for PCIE core */

	uint		armrev;			/* CPU core revision */
	uint		ramrev;			/* SOCRAM core revision */
	uint32		ramsize;		/* Size of RAM in SOCRAM (bytes) */
	uint32		orig_ramsize;		/* Size of RAM in SOCRAM (bytes) */
	uint32		srmemsize;		/* Size of SRMEM */

	uint32		bus;			/* gSPI or SDIO bus */
	uint32		intstatus;		/* Intstatus bits (events) pending */
	bool		dpc_sched;		/* Indicates DPC schedule (intrpt rcvd) */
	bool		fcstate;		/* State of dongle flow-control */

	uint16		cl_devid;		/* cached devid for dhdsdio_probe_attach() */
	char		*fw_path;		/* module_param: path to firmware image */
	char		*nv_path;		/* module_param: path to nvram vars file */
	const char      *nvram_params;		/* user specified nvram params. */

	struct pktq	txq;			/* Queue length used for flow-control */

	uint		rxlen;			/* Length of valid data in buffer */


	bool		intr;			/* Use interrupts */
	bool		ipend;			/* Device interrupt is pending */
	bool		intdis;			/* Interrupts disabled by isr */
	uint		intrcount;		/* Count of device interrupt callbacks */
	uint		lastintrs;		/* Count as of last watchdog timer */

#ifdef DHD_DEBUG
	dhd_console_t	console;		/* Console output polling support */
	uint		console_addr;		/* Console address from shared struct */
#endif /* DHD_DEBUG */

	bool		alp_only;		/* Don't use HT clock (ALP only) */

	bool		remap;		/* Contiguous 1MB RAM: 512K socram + 512K devram
					 * Available with socram rev 16
					 * Remap region not DMA-able
					 */
	uint32		resetinstr;
	uint32		dongle_ram_base;

	ulong		shared_addr;
	pciedev_shared_t	*pcie_sh;
	bool bus_flowctrl;
	ioct_resp_hdr_t	ioct_resp;
	uint32		dma_rxoffset;
	volatile char	*regs;		/* pci device memory va */
	volatile char	*tcm;		/* pci device memory va */
	osl_t		*osh;
	uint32		nvram_csm;	/* Nvram checksum */
	uint16		pollrate;
	uint16  polltick;

	uint32  *pcie_mb_intr_addr;
	void    *pcie_mb_intr_osh;
	bool	sleep_allowed;

	/* version 3 shared struct related info start */
	uint8	h2d_ring_count;
	uint8	d2h_ring_count;
	uint32  ringmem_ptr;
	uint32  ring_state_ptr;

	uint32 h2d_data_ring_mem_addr;
	uint32 h2d_ctrl_ring_mem_addr;
	uint32 h2d_data_ring_state_addr;
	uint32 h2d_ctrl_ring_state_addr;

	uint32 d2h_data_ring_mem_addr;
	uint32 d2h_ctrl_ring_mem_addr;
	uint32 d2h_data_ring_state_addr;
	uint32 d2h_ctrl_ring_state_addr;

	uint32 h2d_mb_data_ptr_addr;
	uint32 d2h_mb_data_ptr_addr;
	/* version 3 shared struct related info end */

	uint32 def_intmask;
	bool	ltrsleep_on_unload;

} dhd_bus_t;

/* function declarations */

extern uint32* dhdpcie_bus_reg_map(osl_t *osh, ulong addr, int size);
extern int dhdpcie_bus_register(void);
extern void dhdpcie_bus_unregister(void);
extern bool dhdpcie_chipmatch(uint16 vendor, uint16 device);

extern struct dhd_bus* dhdpcie_bus_attach(osl_t *osh, volatile char* regs, volatile char* tcm);
extern uint32 dhdpcie_bus_cfg_read_dword(struct dhd_bus *bus, uint32 addr, uint32 size);
extern void dhdpcie_bus_cfg_write_dword(struct dhd_bus *bus, uint32 addr, uint32 size, uint32 data);
extern void dhdpcie_bus_intr_disable(struct dhd_bus *bus);
extern void dhdpcie_bus_release(struct dhd_bus *bus);
extern int32 dhdpcie_bus_isr(struct dhd_bus *bus);
extern void dhdpcie_free_irq(dhd_bus_t *bus);
#endif /* dhd_pcie_h */