forked from luck/tmp_suning_uos_patched
88b060d6c0
During a suspend/resume cycle, an user may change the card in the PCMCIA/CardBus slot. The pcmcia_core can at least look at the socket state to check whether it is the same. For PCMCIA devices, move the detection and handling of such a change to ds.c. For CardBus devices, the PCI hotplug interface doesn't offer a "rescan" facility which also _removes_ devices no longer to be found behind a bridge. Therefore, remove and re-add all devices unconditionally. CC: Jesse Barnes <jbarnes@virtuousgeek.org> CC: Linus Torvalds <torvalds@linux-foundation.org> Tested-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
291 lines
7.5 KiB
C
291 lines
7.5 KiB
C
/*
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* ss.h
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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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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*/
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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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#include <pcmcia/cs_types.h>
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#include <pcmcia/cs.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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spinlock_t lock;
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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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struct {
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u_int AssignedIRQ;
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u_int Config;
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} irq;
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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:1;
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/* It's old if resource setup is done using adjust_resource_info() */
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u8 resource_setup_old:1;
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u8 resource_setup_new:1;
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u8 reserved:5;
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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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/* protects socket h/w state */
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struct mutex skt_mutex;
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/* protects thread_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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/* 16-bit state: */
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struct {
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/* PCMCIA card is present in socket */
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u8 present:1;
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/* "master" ioctl is used */
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u8 busy:1;
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/* pcmcia module is being unloaded */
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u8 dead:1;
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/* a multifunction-device add event is pending */
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u8 device_add_pending:1;
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/* the pending event adds a mfc (1) or pfc (0) */
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u8 mfc_pfc:1;
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u8 reserved:3;
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} pcmcia_state;
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/* for adding further pseudo-multifunction devices */
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struct work_struct device_add;
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#ifdef CONFIG_PCMCIA_IOCTL
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struct user_info_t *user;
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wait_queue_head_t queue;
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#endif /* CONFIG_PCMCIA_IOCTL */
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#endif /* CONFIG_PCMCIA */
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/* cardbus (32-bit) */
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#ifdef CONFIG_CARDBUS
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struct resource *cb_cis_res;
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void __iomem *cb_cis_virt;
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#endif /* CONFIG_CARDBUS */
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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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* - 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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extern struct pccard_resource_ops pccard_static_ops;
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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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/* socket drivers are expected to use these callbacks in their .drv struct */
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extern int pcmcia_socket_dev_suspend(struct device *dev);
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extern void pcmcia_socket_dev_early_resume(struct device *dev);
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extern void pcmcia_socket_dev_late_resume(struct device *dev);
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extern int pcmcia_socket_dev_resume(struct device *dev);
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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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