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authorMaciej W. Rozycki <macro@linux-mips.org>2007-02-05 19:28:25 -0500
committerRalf Baechle <ralf@linux-mips.org>2007-02-09 11:23:15 -0500
commitb454cc6636d254fbf6049b73e9560aee76fb04a3 (patch)
tree5d3d0067ba49fa9e7bb2d6590db3ef8f3c1f499f /include
parent5986a2ec35836a878350c54af4bd91b1de6abc59 (diff)
[TC] MIPS: TURBOchannel update to the driver model
This is a set of changes to convert support for the TURBOchannel bus to the driver model. It implements the usual set of calls similar to what other bus drivers have: tc_register_driver(), tc_unregister_driver(), etc. All the platform-specific bits have been removed and headers from asm-mips/dec/ have been merged into linux/tc.h, which should be included by drivers. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'include')
-rw-r--r--include/asm-mips/dec/tc.h41
-rw-r--r--include/asm-mips/dec/tcinfo.h47
-rw-r--r--include/asm-mips/dec/tcmodule.h39
-rw-r--r--include/linux/tc.h141
4 files changed, 141 insertions, 127 deletions
diff --git a/include/asm-mips/dec/tc.h b/include/asm-mips/dec/tc.h
deleted file mode 100644
index 9cb51f24d42c..000000000000
--- a/include/asm-mips/dec/tc.h
+++ /dev/null
@@ -1,41 +0,0 @@
1/*
2 * Interface to the TURBOchannel related routines
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 *
8 * Copyright (c) 1998 Harald Koerfgen
9 */
10#ifndef __ASM_DEC_TC_H
11#define __ASM_DEC_TC_H
12
13/*
14 * Search for a TURBOchannel Option Module
15 * with a certain name. Returns slot number
16 * of the first card not in use or -ENODEV
17 * if none found.
18 */
19extern int search_tc_card(const char *);
20/*
21 * Marks the card in slot as used
22 */
23extern void claim_tc_card(int);
24/*
25 * Marks the card in slot as free
26 */
27extern void release_tc_card(int);
28/*
29 * Return base address of card in slot
30 */
31extern unsigned long get_tc_base_addr(int);
32/*
33 * Return interrupt number of slot
34 */
35extern unsigned long get_tc_irq_nr(int);
36/*
37 * Return TURBOchannel clock frequency in Hz
38 */
39extern unsigned long get_tc_speed(void);
40
41#endif /* __ASM_DEC_TC_H */
diff --git a/include/asm-mips/dec/tcinfo.h b/include/asm-mips/dec/tcinfo.h
deleted file mode 100644
index cc23509ee77a..000000000000
--- a/include/asm-mips/dec/tcinfo.h
+++ /dev/null
@@ -1,47 +0,0 @@
1/*
2 * Various TURBOchannel related stuff
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 *
8 * Information obtained through the get_tcinfo prom call
9 * created from:
10 *
11 * TURBOchannel Firmware Specification
12 *
13 * EK-TCAAD-FS-004
14 * from Digital Equipment Corporation
15 *
16 * Copyright (c) 1998 Harald Koerfgen
17 */
18
19typedef struct {
20 int revision;
21 int clk_period;
22 int slot_size;
23 int io_timeout;
24 int dma_range;
25 int max_dma_burst;
26 int parity;
27 int reserved[4];
28} tcinfo;
29
30#define MAX_SLOT 7
31
32typedef struct {
33 unsigned long base_addr;
34 unsigned char name[9];
35 unsigned char vendor[9];
36 unsigned char firmware[9];
37 int interrupt;
38 int flags;
39} slot_info;
40
41/*
42 * Values for flags
43 */
44#define FREE 1<<0
45#define IN_USE 1<<1
46
47
diff --git a/include/asm-mips/dec/tcmodule.h b/include/asm-mips/dec/tcmodule.h
deleted file mode 100644
index 6268e8915d87..000000000000
--- a/include/asm-mips/dec/tcmodule.h
+++ /dev/null
@@ -1,39 +0,0 @@
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Offsets for the ROM header locations for
7 * TURBOchannel cards
8 *
9 * created from:
10 *
11 * TURBOchannel Firmware Specification
12 *
13 * EK-TCAAD-FS-004
14 * from Digital Equipment Corporation
15 *
16 * Jan.1998 Harald Koerfgen
17 */
18#ifndef __ASM_DEC_TCMODULE_H
19#define __ASM_DEC_TCMODULE_H
20
21#define OLDCARD 0x3c0000
22#define NEWCARD 0x000000
23
24#define TC_ROM_WIDTH 0x3e0
25#define TC_ROM_STRIDE 0x3e4
26#define TC_ROM_SIZE 0x3e8
27#define TC_SLOT_SIZE 0x3ec
28#define TC_PATTERN0 0x3f0
29#define TC_PATTERN1 0x3f4
30#define TC_PATTERN2 0x3f8
31#define TC_PATTERN3 0x3fc
32#define TC_FIRM_VER 0x400
33#define TC_VENDOR 0x420
34#define TC_MODULE 0x440
35#define TC_FIRM_TYPE 0x460
36#define TC_FLAGS 0x470
37#define TC_ROM_OBJECTS 0x480
38
39#endif /* __ASM_DEC_TCMODULE_H */
diff --git a/include/linux/tc.h b/include/linux/tc.h
new file mode 100644
index 000000000000..f92511e57cdb
--- /dev/null
+++ b/include/linux/tc.h
@@ -0,0 +1,141 @@
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 */
50struct 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 */
64struct 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 */
80struct 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
96struct tc_device_id {
97 char vendor[9];
98 char name[9];
99};
100
101/*
102 * TURBOchannel driver.
103 */
104struct 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 */
115static 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
122extern struct bus_type tc_bus_type;
123
124extern int tc_register_driver(struct tc_driver *tdrv);
125extern void tc_unregister_driver(struct tc_driver *tdrv);
126
127#else /* !CONFIG_TC */
128
129static inline int tc_register_driver(struct tc_driver *tdrv) { return 0; }
130static 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 */
137extern int tc_preadb(u8 *valp, void __iomem *addr);
138extern int tc_bus_get_info(struct tc_bus *tbus);
139extern void tc_device_get_irq(struct tc_dev *tdev);
140
141#endif /* _LINUX_TC_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-29 05:35:04 -0500