[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / linux / tc.h

/*
 *	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);
}

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

#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 */
Commit	Line	Data
b454cc66 MR	1	/*
	2	* Interface to the TURBOchannel related routines.
	3	*
	4	* Copyright (c) 1998 Harald Koerfgen
	5	* Copyright (c) 2005 James Simmons
	6	* Copyright (c) 2006 Maciej W. Rozycki
	7	*
	8	* Based on:
	9	*
	10	* "TURBOchannel Firmware Specification", EK-TCAAD-FS-004
	11	*
	12	* from Digital Equipment Corporation.
	13	*
	14	* This file is subject to the terms and conditions of the GNU
	15	* General Public License. See the file "COPYING" in the main
	16	* directory of this archive for more details.
	17	*/
	18	#ifndef _LINUX_TC_H
	19	#define _LINUX_TC_H
	20
	21	#include <linux/compiler.h>
	22	#include <linux/device.h>
	23	#include <linux/ioport.h>
	24	#include <linux/types.h>
	25
	26	/*
	27	* Offsets for the ROM header locations for TURBOchannel cards.
	28	*/
	29	#define TC_OLDCARD 0x3c0000
	30	#define TC_NEWCARD 0x000000
	31
	32	#define TC_ROM_WIDTH 0x3e0
	33	#define TC_ROM_STRIDE 0x3e4
	34	#define TC_ROM_SIZE 0x3e8
	35	#define TC_SLOT_SIZE 0x3ec
	36	#define TC_PATTERN0 0x3f0
	37	#define TC_PATTERN1 0x3f4
	38	#define TC_PATTERN2 0x3f8
	39	#define TC_PATTERN3 0x3fc
	40	#define TC_FIRM_VER 0x400
	41	#define TC_VENDOR 0x420
	42	#define TC_MODULE 0x440
	43	#define TC_FIRM_TYPE 0x460
	44	#define TC_FLAGS 0x470
	45	#define TC_ROM_OBJECTS 0x480
	46
	47	/*
	48	* Information obtained through the get_tcinfo() PROM call.
	49	*/
	50	struct tcinfo {
	51	s32 revision; /* Hardware revision level. */
	52	s32 clk_period; /* Clock period in nanoseconds. */
	53	s32 slot_size; /* Slot size in megabytes. */
	54	s32 io_timeout; /* I/O timeout in cycles. */
	55	s32 dma_range; /* DMA address range in megabytes. */
	56	s32 max_dma_burst; /* Maximum DMA burst length. */
	57	s32 parity; /* System module supports TC parity. */
	58	s32 reserved[4];
	59	};
	60
	61	/*
	62	* TURBOchannel bus.
	63	*/
	64	struct tc_bus {
65	struct list_head devices; /* List of devices on this bus. */
66	struct resource resource[2]; /* Address space routed to this bus. */
67
68	struct device dev;
69	char name[13];
70	resource_size_t slot_base;
71	resource_size_t ext_slot_base;
72	resource_size_t ext_slot_size;
73	int num_tcslots;
74	struct tcinfo info;
75	};
76
77	/*
78	* TURBOchannel device.
79	*/
80	struct tc_dev {
81	struct list_head node; /* Node in list of all TC devices. */
82	struct tc_bus bus; / Bus this device is on. */
83	struct tc_driver driver; / Which driver has allocated this
84	device. */
85	struct device dev; /* Generic device interface. */
86	struct resource resource; /* Address space of this device. */
87	char vendor[9];
88	char name[9];
89	char firmware[9];
90	int interrupt;
91	int slot;
92	};
93
94	#define to_tc_dev(n) container_of(n, struct tc_dev, dev)
95
96	struct tc_device_id {
97	char vendor[9];
98	char name[9];
99	};
100
101	/*
102	* TURBOchannel driver.
103	*/
104	struct tc_driver {
105	struct list_head node;
106	const struct tc_device_id *id_table;
107	struct device_driver driver;
108	};
109
110	#define to_tc_driver(drv) container_of(drv, struct tc_driver, driver)
111
112	/*
113	* Return TURBOchannel clock frequency in Hz.
114	*/
115	static inline unsigned long tc_get_speed(struct tc_bus *tbus)
116	{
117	return 100000 * (10000 / (unsigned long)tbus->info.clk_period);
118	}
119
120	#ifdef CONFIG_TC
121
122	extern struct bus_type tc_bus_type;
123
124	extern int tc_register_driver(struct tc_driver *tdrv);
125	extern void tc_unregister_driver(struct tc_driver *tdrv);
126
127	#else /* !CONFIG_TC */
128
129	static inline int tc_register_driver(struct tc_driver *tdrv) { return 0; }
130	static inline void tc_unregister_driver(struct tc_driver *tdrv) { }
131
132	#endif /* CONFIG_TC */
133
134	/*
135	* These have to be provided by the architecture.
136	*/
137	extern int tc_preadb(u8 valp, void __iomem addr);
138	extern int tc_bus_get_info(struct tc_bus *tbus);
139	extern void tc_device_get_irq(struct tc_dev *tdev);
140
141	#endif /* _LINUX_TC_H */