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linux-headers-5.4.0-215-generic
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pcmcia
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ss.h
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/* 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 */