275 lines
7.5 KiB
C
275 lines
7.5 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* ds.h -- 16-bit PCMCIA core support
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*
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* The initial developer of the original code is David A. Hinds
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* <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
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* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
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*
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* (C) 1999 David A. Hinds
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* (C) 2003 - 2008 Dominik Brodowski
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*/
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#ifndef _LINUX_DS_H
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#define _LINUX_DS_H
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#ifdef __KERNEL__
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#include <linux/mod_devicetable.h>
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#endif
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#include <pcmcia/device_id.h>
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#ifdef __KERNEL__
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#include <linux/device.h>
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#include <linux/interrupt.h>
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#include <pcmcia/ss.h>
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#include <linux/atomic.h>
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/*
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* PCMCIA device drivers (16-bit cards only; 32-bit cards require CardBus
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* a.k.a. PCI drivers
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*/
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struct pcmcia_socket;
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struct pcmcia_device;
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struct config_t;
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struct net_device;
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/* dynamic device IDs for PCMCIA device drivers. See
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* Documentation/pcmcia/driver.rst for details.
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*/
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struct pcmcia_dynids {
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struct mutex lock;
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struct list_head list;
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};
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struct pcmcia_driver {
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const char *name;
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int (*probe) (struct pcmcia_device *dev);
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void (*remove) (struct pcmcia_device *dev);
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int (*suspend) (struct pcmcia_device *dev);
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int (*resume) (struct pcmcia_device *dev);
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struct module *owner;
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const struct pcmcia_device_id *id_table;
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struct device_driver drv;
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struct pcmcia_dynids dynids;
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};
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/* driver registration */
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int pcmcia_register_driver(struct pcmcia_driver *driver);
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void pcmcia_unregister_driver(struct pcmcia_driver *driver);
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/**
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* module_pcmcia_driver() - Helper macro for registering a pcmcia driver
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* @__pcmcia_driver: pcmcia_driver struct
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*
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* Helper macro for pcmcia drivers which do not do anything special in module
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* init/exit. This eliminates a lot of boilerplate. Each module may only use
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* this macro once, and calling it replaces module_init() and module_exit().
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*/
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#define module_pcmcia_driver(__pcmcia_driver) \
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module_driver(__pcmcia_driver, pcmcia_register_driver, \
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pcmcia_unregister_driver)
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/* for struct resource * array embedded in struct pcmcia_device */
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enum {
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PCMCIA_IOPORT_0,
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PCMCIA_IOPORT_1,
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PCMCIA_IOMEM_0,
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PCMCIA_IOMEM_1,
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PCMCIA_IOMEM_2,
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PCMCIA_IOMEM_3,
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PCMCIA_NUM_RESOURCES,
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};
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struct pcmcia_device {
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/* the socket and the device_no [for multifunction devices]
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uniquely define a pcmcia_device */
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struct pcmcia_socket *socket;
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char *devname;
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u8 device_no;
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/* the hardware "function" device; certain subdevices can
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* share one hardware "function" device. */
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u8 func;
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struct config_t *function_config;
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struct list_head socket_device_list;
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/* device setup */
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unsigned int irq;
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struct resource *resource[PCMCIA_NUM_RESOURCES];
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resource_size_t card_addr; /* for the 1st IOMEM resource */
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unsigned int vpp;
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unsigned int config_flags; /* CONF_ENABLE_ flags below */
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unsigned int config_base;
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unsigned int config_index;
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unsigned int config_regs; /* PRESENT_ flags below */
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unsigned int io_lines; /* number of I/O lines */
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/* Is the device suspended? */
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u16 suspended:1;
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/* Flags whether io, irq, win configurations were
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* requested, and whether the configuration is "locked" */
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u16 _irq:1;
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u16 _io:1;
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u16 _win:4;
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u16 _locked:1;
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/* Flag whether a "fuzzy" func_id based match is
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* allowed. */
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u16 allow_func_id_match:1;
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/* information about this device */
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u16 has_manf_id:1;
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u16 has_card_id:1;
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u16 has_func_id:1;
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u16 reserved:4;
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u8 func_id;
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u16 manf_id;
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u16 card_id;
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char *prod_id[4];
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u64 dma_mask;
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struct device dev;
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/* data private to drivers */
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void *priv;
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unsigned int open;
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};
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#define to_pcmcia_dev(n) container_of(n, struct pcmcia_device, dev)
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#define to_pcmcia_drv(n) container_of(n, struct pcmcia_driver, drv)
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/*
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* CIS access.
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*
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* Please use the following functions to access CIS tuples:
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* - pcmcia_get_tuple()
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* - pcmcia_loop_tuple()
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* - pcmcia_get_mac_from_cis()
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*
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* To parse a tuple_t, pcmcia_parse_tuple() exists. Its interface
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* might change in future.
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*/
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/* get the very first CIS entry of type @code. Note that buf is pointer
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* to u8 *buf; and that you need to kfree(buf) afterwards. */
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size_t pcmcia_get_tuple(struct pcmcia_device *p_dev, cisdata_t code,
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u8 **buf);
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/* loop over CIS entries */
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int pcmcia_loop_tuple(struct pcmcia_device *p_dev, cisdata_t code,
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int (*loop_tuple) (struct pcmcia_device *p_dev,
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tuple_t *tuple,
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void *priv_data),
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void *priv_data);
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/* get the MAC address from CISTPL_FUNCE */
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int pcmcia_get_mac_from_cis(struct pcmcia_device *p_dev,
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struct net_device *dev);
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/* parse a tuple_t */
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int pcmcia_parse_tuple(tuple_t *tuple, cisparse_t *parse);
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/* loop CIS entries for valid configuration */
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int pcmcia_loop_config(struct pcmcia_device *p_dev,
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int (*conf_check) (struct pcmcia_device *p_dev,
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void *priv_data),
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void *priv_data);
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/* is the device still there? */
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struct pcmcia_device *pcmcia_dev_present(struct pcmcia_device *p_dev);
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/* low-level interface reset */
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int pcmcia_reset_card(struct pcmcia_socket *skt);
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/* CIS config */
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int pcmcia_read_config_byte(struct pcmcia_device *p_dev, off_t where, u8 *val);
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int pcmcia_write_config_byte(struct pcmcia_device *p_dev, off_t where, u8 val);
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/* device configuration */
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int pcmcia_request_io(struct pcmcia_device *p_dev);
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int __must_check pcmcia_request_irq(struct pcmcia_device *p_dev,
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irq_handler_t handler);
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int pcmcia_enable_device(struct pcmcia_device *p_dev);
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int pcmcia_request_window(struct pcmcia_device *p_dev, struct resource *res,
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unsigned int speed);
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int pcmcia_release_window(struct pcmcia_device *p_dev, struct resource *res);
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int pcmcia_map_mem_page(struct pcmcia_device *p_dev, struct resource *res,
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unsigned int offset);
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int pcmcia_fixup_vpp(struct pcmcia_device *p_dev, unsigned char new_vpp);
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int pcmcia_fixup_iowidth(struct pcmcia_device *p_dev);
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void pcmcia_disable_device(struct pcmcia_device *p_dev);
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/* IO ports */
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#define IO_DATA_PATH_WIDTH 0x18
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#define IO_DATA_PATH_WIDTH_8 0x00
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#define IO_DATA_PATH_WIDTH_16 0x08
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#define IO_DATA_PATH_WIDTH_AUTO 0x10
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/* IO memory */
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#define WIN_MEMORY_TYPE_CM 0x00 /* default */
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#define WIN_MEMORY_TYPE_AM 0x20 /* MAP_ATTRIB */
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#define WIN_DATA_WIDTH_8 0x00 /* default */
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#define WIN_DATA_WIDTH_16 0x02 /* MAP_16BIT */
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#define WIN_ENABLE 0x01 /* MAP_ACTIVE */
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#define WIN_USE_WAIT 0x40 /* MAP_USE_WAIT */
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#define WIN_FLAGS_MAP 0x63 /* MAP_ATTRIB | MAP_16BIT | MAP_ACTIVE |
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MAP_USE_WAIT */
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#define WIN_FLAGS_REQ 0x1c /* mapping to socket->win[i]:
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0x04 -> 0
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0x08 -> 1
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0x0c -> 2
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0x10 -> 3 */
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/* config_reg{ister}s present for this PCMCIA device */
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#define PRESENT_OPTION 0x001
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#define PRESENT_STATUS 0x002
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#define PRESENT_PIN_REPLACE 0x004
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#define PRESENT_COPY 0x008
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#define PRESENT_EXT_STATUS 0x010
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#define PRESENT_IOBASE_0 0x020
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#define PRESENT_IOBASE_1 0x040
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#define PRESENT_IOBASE_2 0x080
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#define PRESENT_IOBASE_3 0x100
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#define PRESENT_IOSIZE 0x200
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/* flags to be passed to pcmcia_enable_device() */
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#define CONF_ENABLE_IRQ 0x0001
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#define CONF_ENABLE_SPKR 0x0002
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#define CONF_ENABLE_PULSE_IRQ 0x0004
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#define CONF_ENABLE_ESR 0x0008
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#define CONF_ENABLE_IOCARD 0x0010 /* auto-enabled if IO resources or IRQ
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* (CONF_ENABLE_IRQ) in use */
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#define CONF_ENABLE_ZVCARD 0x0020
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/* flags used by pcmcia_loop_config() autoconfiguration */
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#define CONF_AUTO_CHECK_VCC 0x0100 /* check for matching Vcc? */
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#define CONF_AUTO_SET_VPP 0x0200 /* set Vpp? */
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#define CONF_AUTO_AUDIO 0x0400 /* enable audio line? */
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#define CONF_AUTO_SET_IO 0x0800 /* set ->resource[0,1] */
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#define CONF_AUTO_SET_IOMEM 0x1000 /* set ->resource[2] */
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#endif /* __KERNEL__ */
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#endif /* _LINUX_DS_H */
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