xref: /openbmc/linux/drivers/gpu/drm/radeon/atom.h (revision f6a96afb)
1 /*
2  * Copyright 2008 Advanced Micro Devices, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Author: Stanislaw Skowronek
23  */
24 
25 #ifndef ATOM_H
26 #define ATOM_H
27 
28 #include <linux/mutex.h>
29 #include <linux/types.h>
30 
31 #define ATOM_BIOS_MAGIC		0xAA55
32 #define ATOM_ATI_MAGIC_PTR	0x30
33 #define ATOM_ATI_MAGIC		" 761295520"
34 #define ATOM_ROM_TABLE_PTR	0x48
35 
36 #define ATOM_ROM_MAGIC		"ATOM"
37 #define ATOM_ROM_MAGIC_PTR	4
38 
39 #define ATOM_ROM_MSG_PTR	0x10
40 #define ATOM_ROM_CMD_PTR	0x1E
41 #define ATOM_ROM_DATA_PTR	0x20
42 
43 #define ATOM_CMD_INIT		0
44 #define ATOM_CMD_SETSCLK	0x0A
45 #define ATOM_CMD_SETMCLK	0x0B
46 #define ATOM_CMD_SETPCLK	0x0C
47 #define ATOM_CMD_SPDFANCNTL	0x39
48 
49 #define ATOM_DATA_FWI_PTR	0xC
50 #define ATOM_DATA_IIO_PTR	0x32
51 
52 #define ATOM_FWI_DEFSCLK_PTR	8
53 #define ATOM_FWI_DEFMCLK_PTR	0xC
54 #define ATOM_FWI_MAXSCLK_PTR	0x24
55 #define ATOM_FWI_MAXMCLK_PTR	0x28
56 
57 #define ATOM_CT_SIZE_PTR	0
58 #define ATOM_CT_WS_PTR		4
59 #define ATOM_CT_PS_PTR		5
60 #define ATOM_CT_PS_MASK		0x7F
61 #define ATOM_CT_CODE_PTR	6
62 
63 #define ATOM_OP_CNT		123
64 #define ATOM_OP_EOT		91
65 
66 #define ATOM_CASE_MAGIC		0x63
67 #define ATOM_CASE_END		0x5A5A
68 
69 #define ATOM_ARG_REG		0
70 #define ATOM_ARG_PS		1
71 #define ATOM_ARG_WS		2
72 #define ATOM_ARG_FB		3
73 #define ATOM_ARG_ID		4
74 #define ATOM_ARG_IMM		5
75 #define ATOM_ARG_PLL		6
76 #define ATOM_ARG_MC		7
77 
78 #define ATOM_SRC_DWORD		0
79 #define ATOM_SRC_WORD0		1
80 #define ATOM_SRC_WORD8		2
81 #define ATOM_SRC_WORD16		3
82 #define ATOM_SRC_BYTE0		4
83 #define ATOM_SRC_BYTE8		5
84 #define ATOM_SRC_BYTE16		6
85 #define ATOM_SRC_BYTE24		7
86 
87 #define ATOM_WS_QUOTIENT	0x40
88 #define ATOM_WS_REMAINDER	0x41
89 #define ATOM_WS_DATAPTR		0x42
90 #define ATOM_WS_SHIFT		0x43
91 #define ATOM_WS_OR_MASK		0x44
92 #define ATOM_WS_AND_MASK	0x45
93 #define ATOM_WS_FB_WINDOW	0x46
94 #define ATOM_WS_ATTRIBUTES	0x47
95 #define ATOM_WS_REGPTR  	0x48
96 
97 #define ATOM_IIO_NOP		0
98 #define ATOM_IIO_START		1
99 #define ATOM_IIO_READ		2
100 #define ATOM_IIO_WRITE		3
101 #define ATOM_IIO_CLEAR		4
102 #define ATOM_IIO_SET		5
103 #define ATOM_IIO_MOVE_INDEX	6
104 #define ATOM_IIO_MOVE_ATTR	7
105 #define ATOM_IIO_MOVE_DATA	8
106 #define ATOM_IIO_END		9
107 
108 #define ATOM_IO_MM		0
109 #define ATOM_IO_PCI		1
110 #define ATOM_IO_SYSIO		2
111 #define ATOM_IO_IIO		0x80
112 
113 struct card_info {
114 	struct drm_device *dev;
115 	void (* reg_write)(struct card_info *, uint32_t, uint32_t);   /*  filled by driver */
116         uint32_t (* reg_read)(struct card_info *, uint32_t);          /*  filled by driver */
117 	void (* ioreg_write)(struct card_info *, uint32_t, uint32_t);   /*  filled by driver */
118         uint32_t (* ioreg_read)(struct card_info *, uint32_t);          /*  filled by driver */
119 	void (* mc_write)(struct card_info *, uint32_t, uint32_t);   /*  filled by driver */
120         uint32_t (* mc_read)(struct card_info *, uint32_t);          /*  filled by driver */
121 	void (* pll_write)(struct card_info *, uint32_t, uint32_t);   /*  filled by driver */
122         uint32_t (* pll_read)(struct card_info *, uint32_t);          /*  filled by driver */
123 };
124 
125 struct atom_context {
126 	struct card_info *card;
127 	struct mutex mutex;
128 	struct mutex scratch_mutex;
129 	void *bios;
130 	uint32_t cmd_table, data_table;
131 	uint16_t *iio;
132 
133 	uint16_t data_block;
134 	uint32_t fb_base;
135 	uint32_t divmul[2];
136 	uint16_t io_attr;
137 	uint16_t reg_block;
138 	uint8_t shift;
139 	int cs_equal, cs_above;
140 	int io_mode;
141 	uint32_t *scratch;
142 	int scratch_size_bytes;
143 };
144 
145 extern int atom_debug;
146 
147 struct atom_context *atom_parse(struct card_info *, void *);
148 int atom_execute_table(struct atom_context *, int, uint32_t *);
149 int atom_execute_table_scratch_unlocked(struct atom_context *, int, uint32_t *);
150 int atom_asic_init(struct atom_context *);
151 void atom_destroy(struct atom_context *);
152 bool atom_parse_data_header(struct atom_context *ctx, int index, uint16_t *size,
153 			    uint8_t *frev, uint8_t *crev, uint16_t *data_start);
154 bool atom_parse_cmd_header(struct atom_context *ctx, int index,
155 			   uint8_t *frev, uint8_t *crev);
156 int atom_allocate_fb_scratch(struct atom_context *ctx);
157 
158 struct i2c_msg;
159 struct i2c_adapter;
160 int radeon_atom_hw_i2c_xfer(struct i2c_adapter *i2c_adap,
161 			    struct i2c_msg *msgs, int num);
162 u32 radeon_atom_hw_i2c_func(struct i2c_adapter *adap);
163 
164 #include "atom-types.h"
165 #include "atombios.h"
166 #include "ObjectID.h"
167 
168 #endif
169