/*
* ds.h -- 16-bit PCMCIA core support
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* The initial developer of the original code is David A. Hinds
* <[email protected]>. Portions created by David A. Hinds
* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
*
* (C) 1999 David A. Hinds
* (C) 2003 - 2008 Dominik Brodowski
*/

#ifndef _LINUX_DS_H
#define _LINUX_DS_H

#ifdef __KERNEL__
#include <linux/mod_devicetable.h>
#endif

#include <pcmcia/device_id.h>

#ifdef __KERNEL__
#include <linux/device.h>
#include <linux/interrupt.h>
#include <pcmcia/ss.h>
#include <linux/atomic.h>


/*
* PCMCIA device drivers (16-bit cards only; 32-bit cards require CardBus
* a.k.a. PCI drivers
*/
struct pcmcia_socket;
struct pcmcia_device;
struct config_t;
struct net_device;

/* dynamic device IDs for PCMCIA device drivers. See
* Documentation/pcmcia/driver.txt for details.
*/
struct pcmcia_dynids {
struct mutex lock;
struct list_head list;
};

struct pcmcia_driver {
const char *name;

int (*probe) (struct pcmcia_device *dev);
void (*remove) (struct pcmcia_device *dev);

int (*suspend) (struct pcmcia_device *dev);
int (*resume) (struct pcmcia_device *dev);

struct module *owner;
const struct pcmcia_device_id *id_table;
struct device_driver drv;
struct pcmcia_dynids dynids;
};

/* driver registration */
int pcmcia_register_driver(struct pcmcia_driver *driver);
void pcmcia_unregister_driver(struct pcmcia_driver *driver);

/**
* module_pcmcia_driver() - Helper macro for registering a pcmcia driver
* @__pcmcia_driver: pcmcia_driver struct
*
* Helper macro for pcmcia drivers which do not do anything special in module
* init/exit. This eliminates a lot of boilerplate. Each module may only use
* this macro once, and calling it replaces module_init() and module_exit().
*/
#define module_pcmcia_driver(__pcmcia_driver) \
module_driver(__pcmcia_driver, pcmcia_register_driver, \
pcmcia_unregister_driver)

/* for struct resource * array embedded in struct pcmcia_device */
enum {
PCMCIA_IOPORT_0,
PCMCIA_IOPORT_1,
PCMCIA_IOMEM_0,
PCMCIA_IOMEM_1,
PCMCIA_IOMEM_2,
PCMCIA_IOMEM_3,
PCMCIA_NUM_RESOURCES,
};

struct pcmcia_device {
/* the socket and the device_no [for multifunction devices]
uniquely define a pcmcia_device */
struct pcmcia_socket *socket;

char *devname;

u8 device_no;

/* the hardware "function" device; certain subdevices can
* share one hardware "function" device. */
u8 func;
struct config_t *function_config;

struct list_head socket_device_list;

/* device setup */
unsigned int irq;
struct resource *resource[PCMCIA_NUM_RESOURCES];
resource_size_t card_addr; /* for the 1st IOMEM resource */
unsigned int vpp;

unsigned int config_flags; /* CONF_ENABLE_ flags below */
unsigned int config_base;
unsigned int config_index;
unsigned int config_regs; /* PRESENT_ flags below */
unsigned int io_lines; /* number of I/O lines */

/* Is the device suspended? */
u16 suspended:1;

/* Flags whether io, irq, win configurations were
* requested, and whether the configuration is "locked" */
u16 _irq:1;
u16 _io:1;
u16 _win:4;
u16 _locked:1;

/* Flag whether a "fuzzy" func_id based match is
* allowed. */
u16 allow_func_id_match:1;

/* information about this device */
u16 has_manf_id:1;
u16 has_card_id:1;
u16 has_func_id:1;

u16 reserved:4;

u8 func_id;
u16 manf_id;
u16 card_id;

char *prod_id[4];

u64 dma_mask;
struct device dev;

/* data private to drivers */
void *priv;
unsigned int open;
};

#define to_pcmcia_dev(n) container_of(n, struct pcmcia_device, dev)
#define to_pcmcia_drv(n) container_of(n, struct pcmcia_driver, drv)


/*
* CIS access.
*
* Please use the following functions to access CIS tuples:
* - pcmcia_get_tuple()
* - pcmcia_loop_tuple()
* - pcmcia_get_mac_from_cis()
*
* To parse a tuple_t, pcmcia_parse_tuple() exists. Its interface
* might change in future.
*/

/* get the very first CIS entry of type @code. Note that buf is pointer
* to u8 *buf; and that you need to kfree(buf) afterwards. */
size_t pcmcia_get_tuple(struct pcmcia_device *p_dev, cisdata_t code,
u8 **buf);

/* loop over CIS entries */
int pcmcia_loop_tuple(struct pcmcia_device *p_dev, cisdata_t code,
int (*loop_tuple) (struct pcmcia_device *p_dev,
tuple_t *tuple,
void *priv_data),
void *priv_data);

/* get the MAC address from CISTPL_FUNCE */
int pcmcia_get_mac_from_cis(struct pcmcia_device *p_dev,
struct net_device *dev);


/* parse a tuple_t */
int pcmcia_parse_tuple(tuple_t *tuple, cisparse_t *parse);

/* loop CIS entries for valid configuration */
int pcmcia_loop_config(struct pcmcia_device *p_dev,
int (*conf_check) (struct pcmcia_device *p_dev,
void *priv_data),
void *priv_data);

/* is the device still there? */
struct pcmcia_device *pcmcia_dev_present(struct pcmcia_device *p_dev);

/* low-level interface reset */
int pcmcia_reset_card(struct pcmcia_socket *skt);

/* CIS config */
int pcmcia_read_config_byte(struct pcmcia_device *p_dev, off_t where, u8 *val);
int pcmcia_write_config_byte(struct pcmcia_device *p_dev, off_t where, u8 val);

/* device configuration */
int pcmcia_request_io(struct pcmcia_device *p_dev);

int __must_check
__pcmcia_request_exclusive_irq(struct pcmcia_device *p_dev,
irq_handler_t handler);
static inline __must_check __deprecated int
pcmcia_request_exclusive_irq(struct pcmcia_device *p_dev,
irq_handler_t handler)
{
return __pcmcia_request_exclusive_irq(p_dev, handler);
}

int __must_check pcmcia_request_irq(struct pcmcia_device *p_dev,
irq_handler_t handler);

int pcmcia_enable_device(struct pcmcia_device *p_dev);

int pcmcia_request_window(struct pcmcia_device *p_dev, struct resource *res,
unsigned int speed);
int pcmcia_release_window(struct pcmcia_device *p_dev, struct resource *res);
int pcmcia_map_mem_page(struct pcmcia_device *p_dev, struct resource *res,
unsigned int offset);

int pcmcia_fixup_vpp(struct pcmcia_device *p_dev, unsigned char new_vpp);
int pcmcia_fixup_iowidth(struct pcmcia_device *p_dev);

void pcmcia_disable_device(struct pcmcia_device *p_dev);

/* IO ports */
#define IO_DATA_PATH_WIDTH 0x18
#define IO_DATA_PATH_WIDTH_8 0x00
#define IO_DATA_PATH_WIDTH_16 0x08
#define IO_DATA_PATH_WIDTH_AUTO 0x10

/* IO memory */
#define WIN_MEMORY_TYPE_CM 0x00 /* default */
#define WIN_MEMORY_TYPE_AM 0x20 /* MAP_ATTRIB */
#define WIN_DATA_WIDTH_8 0x00 /* default */
#define WIN_DATA_WIDTH_16 0x02 /* MAP_16BIT */
#define WIN_ENABLE 0x01 /* MAP_ACTIVE */
#define WIN_USE_WAIT 0x40 /* MAP_USE_WAIT */

#define WIN_FLAGS_MAP 0x63 /* MAP_ATTRIB | MAP_16BIT | MAP_ACTIVE |
MAP_USE_WAIT */
#define WIN_FLAGS_REQ 0x1c /* mapping to socket->win[i]:
0x04 -> 0
0x08 -> 1
0x0c -> 2
0x10 -> 3 */

/* config_reg{ister}s present for this PCMCIA device */
#define PRESENT_OPTION 0x001
#define PRESENT_STATUS 0x002
#define PRESENT_PIN_REPLACE 0x004
#define PRESENT_COPY 0x008
#define PRESENT_EXT_STATUS 0x010
#define PRESENT_IOBASE_0 0x020
#define PRESENT_IOBASE_1 0x040
#define PRESENT_IOBASE_2 0x080
#define PRESENT_IOBASE_3 0x100
#define PRESENT_IOSIZE 0x200

/* flags to be passed to pcmcia_enable_device() */
#define CONF_ENABLE_IRQ 0x0001
#define CONF_ENABLE_SPKR 0x0002
#define CONF_ENABLE_PULSE_IRQ 0x0004
#define CONF_ENABLE_ESR 0x0008
#define CONF_ENABLE_IOCARD 0x0010 /* auto-enabled if IO resources or IRQ
* (CONF_ENABLE_IRQ) in use */
#define CONF_ENABLE_ZVCARD 0x0020

/* flags used by pcmcia_loop_config() autoconfiguration */
#define CONF_AUTO_CHECK_VCC 0x0100 /* check for matching Vcc? */
#define CONF_AUTO_SET_VPP 0x0200 /* set Vpp? */
#define CONF_AUTO_AUDIO 0x0400 /* enable audio line? */
#define CONF_AUTO_SET_IO 0x0800 /* set ->resource[0,1] */
#define CONF_AUTO_SET_IOMEM 0x1000 /* set ->resource[2] */

#endif /* __KERNEL__ */

#endif /* _LINUX_DS_H */