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