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Diffstat (limited to '')
| -rw-r--r-- | include/pcmcia/ds.h | 274 |
1 files changed, 274 insertions, 0 deletions
diff --git a/include/pcmcia/ds.h b/include/pcmcia/ds.h new file mode 100644 index 000000000..b7a8de88b --- /dev/null +++ b/include/pcmcia/ds.h @@ -0,0 +1,274 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * ds.h -- 16-bit PCMCIA core support + * + * The initial developer of the original code is David A. Hinds + * <dahinds@users.sourceforge.net>. 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.rst 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_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 */ |