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-rw-r--r--include/pcmcia/ss.h263
1 files changed, 263 insertions, 0 deletions
diff --git a/include/pcmcia/ss.h b/include/pcmcia/ss.h
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index 000000000..7cf7dbbfa
--- /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 */