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Diffstat (limited to 'include/pcmcia/ss.h')
| -rw-r--r-- | include/pcmcia/ss.h | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/include/pcmcia/ss.h b/include/pcmcia/ss.h new file mode 100644 index 0000000000..7cf7dbbfa1 --- /dev/null +++ b/include/pcmcia/ss.h @@ -0,0 +1,263 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * ss.h + * + * 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 + */ + +#ifndef _LINUX_SS_H +#define _LINUX_SS_H + +#include <linux/device.h> +#include <linux/sched.h> /* task_struct, completion */ +#include <linux/mutex.h> + +#ifdef CONFIG_CARDBUS +#include <linux/pci.h> +#endif + +/* Definitions for card status flags for GetStatus */ +#define SS_WRPROT 0x0001 +#define SS_CARDLOCK 0x0002 +#define SS_EJECTION 0x0004 +#define SS_INSERTION 0x0008 +#define SS_BATDEAD 0x0010 +#define SS_BATWARN 0x0020 +#define SS_READY 0x0040 +#define SS_DETECT 0x0080 +#define SS_POWERON 0x0100 +#define SS_GPI 0x0200 +#define SS_STSCHG 0x0400 +#define SS_CARDBUS 0x0800 +#define SS_3VCARD 0x1000 +#define SS_XVCARD 0x2000 +#define SS_PENDING 0x4000 +#define SS_ZVCARD 0x8000 + +/* InquireSocket capabilities */ +#define SS_CAP_PAGE_REGS 0x0001 +#define SS_CAP_VIRTUAL_BUS 0x0002 +#define SS_CAP_MEM_ALIGN 0x0004 +#define SS_CAP_STATIC_MAP 0x0008 +#define SS_CAP_PCCARD 0x4000 +#define SS_CAP_CARDBUS 0x8000 + +/* for GetSocket, SetSocket */ +typedef struct socket_state_t { + u_int flags; + u_int csc_mask; + u_char Vcc, Vpp; + u_char io_irq; +} socket_state_t; + +extern socket_state_t dead_socket; + +/* Socket configuration flags */ +#define SS_PWR_AUTO 0x0010 +#define SS_IOCARD 0x0020 +#define SS_RESET 0x0040 +#define SS_DMA_MODE 0x0080 +#define SS_SPKR_ENA 0x0100 +#define SS_OUTPUT_ENA 0x0200 + +/* Flags for I/O port and memory windows */ +#define MAP_ACTIVE 0x01 +#define MAP_16BIT 0x02 +#define MAP_AUTOSZ 0x04 +#define MAP_0WS 0x08 +#define MAP_WRPROT 0x10 +#define MAP_ATTRIB 0x20 +#define MAP_USE_WAIT 0x40 +#define MAP_PREFETCH 0x80 + +/* Use this just for bridge windows */ +#define MAP_IOSPACE 0x20 + +/* power hook operations */ +#define HOOK_POWER_PRE 0x01 +#define HOOK_POWER_POST 0x02 + +typedef struct pccard_io_map { + u_char map; + u_char flags; + u_short speed; + phys_addr_t start, stop; +} pccard_io_map; + +typedef struct pccard_mem_map { + u_char map; + u_char flags; + u_short speed; + phys_addr_t static_start; + u_int card_start; + struct resource *res; +} pccard_mem_map; + +typedef struct io_window_t { + u_int InUse, Config; + struct resource *res; +} io_window_t; + +/* Maximum number of IO windows per socket */ +#define MAX_IO_WIN 2 + +/* Maximum number of memory windows per socket */ +#define MAX_WIN 4 + + +/* + * Socket operations. + */ +struct pcmcia_socket; +struct pccard_resource_ops; +struct config_t; +struct pcmcia_callback; +struct user_info_t; + +struct pccard_operations { + int (*init)(struct pcmcia_socket *s); + int (*suspend)(struct pcmcia_socket *s); + int (*get_status)(struct pcmcia_socket *s, u_int *value); + int (*set_socket)(struct pcmcia_socket *s, socket_state_t *state); + int (*set_io_map)(struct pcmcia_socket *s, struct pccard_io_map *io); + int (*set_mem_map)(struct pcmcia_socket *s, struct pccard_mem_map *mem); +}; + +struct pcmcia_socket { + struct module *owner; + socket_state_t socket; + u_int state; + u_int suspended_state; /* state before suspend */ + u_short functions; + u_short lock_count; + pccard_mem_map cis_mem; + void __iomem *cis_virt; + io_window_t io[MAX_IO_WIN]; + pccard_mem_map win[MAX_WIN]; + struct list_head cis_cache; + size_t fake_cis_len; + u8 *fake_cis; + + struct list_head socket_list; + struct completion socket_released; + + /* deprecated */ + unsigned int sock; /* socket number */ + + + /* socket capabilities */ + u_int features; + u_int irq_mask; + u_int map_size; + u_int io_offset; + u_int pci_irq; + struct pci_dev *cb_dev; + + /* socket setup is done so resources should be able to be allocated. + * Only if set to 1, calls to find_{io,mem}_region are handled, and + * insertio events are actually managed by the PCMCIA layer.*/ + u8 resource_setup_done; + + /* socket operations */ + struct pccard_operations *ops; + struct pccard_resource_ops *resource_ops; + void *resource_data; + + /* Zoom video behaviour is so chip specific its not worth adding + this to _ops */ + void (*zoom_video)(struct pcmcia_socket *, + int); + + /* so is power hook */ + int (*power_hook)(struct pcmcia_socket *sock, int operation); + + /* allows tuning the CB bridge before loading driver for the CB card */ +#ifdef CONFIG_CARDBUS + void (*tune_bridge)(struct pcmcia_socket *sock, struct pci_bus *bus); +#endif + + /* state thread */ + struct task_struct *thread; + struct completion thread_done; + unsigned int thread_events; + unsigned int sysfs_events; + + /* For the non-trivial interaction between these locks, + * see Documentation/pcmcia/locking.rst */ + struct mutex skt_mutex; + struct mutex ops_mutex; + + /* protects thread_events and sysfs_events */ + spinlock_t thread_lock; + + /* pcmcia (16-bit) */ + struct pcmcia_callback *callback; + +#if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE) + /* The following elements refer to 16-bit PCMCIA devices inserted + * into the socket */ + struct list_head devices_list; + + /* the number of devices, used only internally and subject to + * incorrectness and change */ + u8 device_count; + + /* does the PCMCIA card consist of two pseudo devices? */ + u8 pcmcia_pfc; + + /* non-zero if PCMCIA card is present */ + atomic_t present; + + /* IRQ to be used by PCMCIA devices. May not be IRQ 0. */ + unsigned int pcmcia_irq; + +#endif /* CONFIG_PCMCIA */ + + /* socket device */ + struct device dev; + /* data internal to the socket driver */ + void *driver_data; + /* status of the card during resume from a system sleep state */ + int resume_status; +}; + + +/* socket drivers must define the resource operations type they use. There + * are three options: + * - pccard_static_ops iomem and ioport areas are assigned statically + * - pccard_iodyn_ops iomem areas is assigned statically, ioport + * areas dynamically + * If this option is selected, use + * "select PCCARD_IODYN" in Kconfig. + * - pccard_nonstatic_ops iomem and ioport areas are assigned dynamically. + * If this option is selected, use + * "select PCCARD_NONSTATIC" in Kconfig. + * + */ +extern struct pccard_resource_ops pccard_static_ops; +#if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE) +extern struct pccard_resource_ops pccard_iodyn_ops; +extern struct pccard_resource_ops pccard_nonstatic_ops; +#else +/* If PCMCIA is not used, but only CARDBUS, these functions are not used + * at all. Therefore, do not use the large (240K!) rsrc_nonstatic module + */ +#define pccard_iodyn_ops pccard_static_ops +#define pccard_nonstatic_ops pccard_static_ops +#endif + + +/* socket drivers use this callback in their IRQ handler */ +extern void pcmcia_parse_events(struct pcmcia_socket *socket, + unsigned int events); + +/* to register and unregister a socket */ +extern int pcmcia_register_socket(struct pcmcia_socket *socket); +extern void pcmcia_unregister_socket(struct pcmcia_socket *socket); + + +#endif /* _LINUX_SS_H */ |