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Release 4.12 include/linux/tc.h

Directory: include/linux
 *      Interface to the TURBOchannel related routines.
 *      Copyright (c) 1998  Harald Koerfgen
 *      Copyright (c) 2005  James Simmons
 *      Copyright (c) 2006  Maciej W. Rozycki
 *      Based on:
 *      "TURBOchannel Firmware Specification", EK-TCAAD-FS-004
 *      from Digital Equipment Corporation.
 *      This file is subject to the terms and conditions of the GNU
 *      General Public License.  See the file "COPYING" in the main
 *      directory of this archive for more details.
#ifndef _LINUX_TC_H

#define _LINUX_TC_H

#include <linux/compiler.h>
#include <linux/device.h>
#include <linux/ioport.h>
#include <linux/types.h>

 * Offsets for the ROM header locations for TURBOchannel cards.

#define TC_OLDCARD	0x3c0000

#define TC_NEWCARD	0x000000

#define TC_ROM_WIDTH	0x3e0

#define TC_ROM_STRIDE	0x3e4

#define TC_ROM_SIZE	0x3e8

#define TC_SLOT_SIZE	0x3ec

#define TC_PATTERN0	0x3f0

#define TC_PATTERN1	0x3f4

#define TC_PATTERN2	0x3f8

#define TC_PATTERN3	0x3fc

#define TC_FIRM_VER	0x400

#define TC_VENDOR	0x420

#define TC_MODULE	0x440

#define TC_FIRM_TYPE	0x460

#define TC_FLAGS	0x470

#define TC_ROM_OBJECTS	0x480

 * Information obtained through the get_tcinfo() PROM call.

struct tcinfo {
s32		revision;	/* Hardware revision level. */
s32		clk_period;	/* Clock period in nanoseconds. */
s32		slot_size;	/* Slot size in megabytes. */
s32		io_timeout;	/* I/O timeout in cycles. */
s32		dma_range;	/* DMA address range in megabytes. */
s32		max_dma_burst;	/* Maximum DMA burst length. */
s32		parity;		/* System module supports TC parity. */
s32		reserved[4];

 * TURBOchannel bus.

struct tc_bus {
struct list_head devices;	/* List of devices on this bus. */
struct resource	resource[2];	/* Address space routed to this bus. */

struct device	dev;
char		name[13];
resource_size_t	slot_base;
resource_size_t	ext_slot_base;
resource_size_t	ext_slot_size;
int		num_tcslots;
struct tcinfo	info;

 * TURBOchannel device.

struct tc_dev {
struct list_head node;		/* Node in list of all TC devices. */
struct tc_bus	*bus;		/* Bus this device is on. */
struct tc_driver *driver;	/* Which driver has allocated this
                                           device. */
struct device	dev;		/* Generic device interface. */
struct resource	resource;	/* Address space of this device. */
char		vendor[9];
char		name[9];
char		firmware[9];
int		interrupt;
int		slot;

#define to_tc_dev(n) container_of(n, struct tc_dev, dev)

struct tc_device_id {
char		vendor[9];
char		name[9];

 * TURBOchannel driver.

struct tc_driver {
struct list_head node;
const struct tc_device_id *id_table;
struct device_driver driver;

#define to_tc_driver(drv) container_of(drv, struct tc_driver, driver)

 * Return TURBOchannel clock frequency in Hz.

static inline unsigned long tc_get_speed(struct tc_bus *tbus) { return 100000 * (10000 / (unsigned long)tbus->info.clk_period); }


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#ifdef CONFIG_TC extern struct bus_type tc_bus_type; extern int tc_register_driver(struct tc_driver *tdrv); extern void tc_unregister_driver(struct tc_driver *tdrv); #else /* !CONFIG_TC */
static inline int tc_register_driver(struct tc_driver *tdrv) { return 0; }


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static inline void tc_unregister_driver(struct tc_driver *tdrv) { }


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#endif /* CONFIG_TC */ /* * These have to be provided by the architecture. */ extern int tc_preadb(u8 *valp, void __iomem *addr); extern int tc_bus_get_info(struct tc_bus *tbus); extern void tc_device_get_irq(struct tc_dev *tdev); #endif /* _LINUX_TC_H */

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Directory: include/linux
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