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eeb7a50b MP |
1 | /* |
2 | * Copyright 2010 Red Hat 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 | * Authors: Ben Skeggs | |
23 | */ | |
24 | ||
25 | #ifndef __NOUVEAU_HWSQ_H__ | |
26 | #define __NOUVEAU_HWSQ_H__ | |
27 | ||
28 | struct hwsq_ucode { | |
29 | u8 data[0x200]; | |
30 | union { | |
31 | u8 *u08; | |
32 | u16 *u16; | |
33 | u32 *u32; | |
34 | } ptr; | |
35 | u16 len; | |
36 | ||
37 | u32 reg; | |
38 | u32 val; | |
39 | }; | |
40 | ||
41 | static inline void | |
42 | hwsq_init(struct hwsq_ucode *hwsq) | |
43 | { | |
44 | hwsq->ptr.u08 = hwsq->data; | |
45 | hwsq->reg = 0xffffffff; | |
46 | hwsq->val = 0xffffffff; | |
47 | } | |
48 | ||
49 | static inline void | |
50 | hwsq_fini(struct hwsq_ucode *hwsq) | |
51 | { | |
52 | do { | |
53 | *hwsq->ptr.u08++ = 0x7f; | |
54 | hwsq->len = hwsq->ptr.u08 - hwsq->data; | |
55 | } while (hwsq->len & 3); | |
56 | hwsq->ptr.u08 = hwsq->data; | |
57 | } | |
58 | ||
59 | static inline void | |
c8b9641a | 60 | hwsq_usec(struct hwsq_ucode *hwsq, u8 usec) |
eeb7a50b | 61 | { |
c8b9641a BS |
62 | u32 shift = 0; |
63 | while (usec & ~3) { | |
64 | usec >>= 2; | |
65 | shift++; | |
66 | } | |
67 | ||
68 | *hwsq->ptr.u08++ = (shift << 2) | usec; | |
69 | } | |
70 | ||
71 | static inline void | |
72 | hwsq_setf(struct hwsq_ucode *hwsq, u8 flag, int val) | |
73 | { | |
74 | flag += 0x80; | |
75 | if (val >= 0) | |
76 | flag += 0x20; | |
77 | if (val >= 1) | |
78 | flag += 0x20; | |
79 | *hwsq->ptr.u08++ = flag; | |
eeb7a50b MP |
80 | } |
81 | ||
82 | static inline void | |
83 | hwsq_op5f(struct hwsq_ucode *hwsq, u8 v0, u8 v1) | |
84 | { | |
85 | *hwsq->ptr.u08++ = 0x5f; | |
86 | *hwsq->ptr.u08++ = v0; | |
87 | *hwsq->ptr.u08++ = v1; | |
88 | } | |
89 | ||
90 | static inline void | |
91 | hwsq_wr32(struct hwsq_ucode *hwsq, u32 reg, u32 val) | |
92 | { | |
93 | if (val != hwsq->val) { | |
94 | if ((val & 0xffff0000) == (hwsq->val & 0xffff0000)) { | |
95 | *hwsq->ptr.u08++ = 0x42; | |
96 | *hwsq->ptr.u16++ = (val & 0x0000ffff); | |
97 | } else { | |
98 | *hwsq->ptr.u08++ = 0xe2; | |
99 | *hwsq->ptr.u32++ = val; | |
100 | } | |
101 | ||
102 | hwsq->val = val; | |
103 | } | |
104 | ||
105 | if ((reg & 0xffff0000) == (hwsq->reg & 0xffff0000)) { | |
106 | *hwsq->ptr.u08++ = 0x40; | |
107 | *hwsq->ptr.u16++ = (reg & 0x0000ffff); | |
108 | } else { | |
109 | *hwsq->ptr.u08++ = 0xe0; | |
110 | *hwsq->ptr.u32++ = reg; | |
111 | } | |
112 | hwsq->reg = reg; | |
113 | } | |
114 | ||
115 | #endif |