1 /*
2  * Copyright (c) 2013 NVIDIA Corporation.
3  *
4  * This program is free software; you can redistribute it and/or modify it
5  * under the terms and conditions of the GNU General Public License,
6  * version 2, as published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope it will be useful, but WITHOUT
9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
11  * more details.
12  *
13  * You should have received a copy of the GNU General Public License
14  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
15  *
16  */
17 
18  /*
19   * Function naming determines intended use:
20   *
21   *     <x>_r(void) : Returns the offset for register <x>.
22   *
23   *     <x>_w(void) : Returns the word offset for word (4 byte) element <x>.
24   *
25   *     <x>_<y>_s(void) : Returns size of field <y> of register <x> in bits.
26   *
27   *     <x>_<y>_f(u32 v) : Returns a value based on 'v' which has been shifted
28   *         and masked to place it at field <y> of register <x>.  This value
29   *         can be |'d with others to produce a full register value for
30   *         register <x>.
31   *
32   *     <x>_<y>_m(void) : Returns a mask for field <y> of register <x>.  This
33   *         value can be ~'d and then &'d to clear the value of field <y> for
34   *         register <x>.
35   *
36   *     <x>_<y>_<z>_f(void) : Returns the constant value <z> after being shifted
37   *         to place it at field <y> of register <x>.  This value can be |'d
38   *         with others to produce a full register value for <x>.
39   *
40   *     <x>_<y>_v(u32 r) : Returns the value of field <y> from a full register
41   *         <x> value 'r' after being shifted to place its LSB at bit 0.
42   *         This value is suitable for direct comparison with other unshifted
43   *         values appropriate for use in field <y> of register <x>.
44   *
45   *     <x>_<y>_<z>_v(void) : Returns the constant value for <z> defined for
46   *         field <y> of register <x>.  This value is suitable for direct
47   *         comparison with unshifted values appropriate for use in field <y>
48   *         of register <x>.
49   */
50 
51 #ifndef HOST1X_HW_HOST1X04_CHANNEL_H
52 #define HOST1X_HW_HOST1X04_CHANNEL_H
53 
54 static inline u32 host1x_channel_fifostat_r(void)
55 {
56 	return 0x0;
57 }
58 #define HOST1X_CHANNEL_FIFOSTAT \
59 	host1x_channel_fifostat_r()
60 static inline u32 host1x_channel_fifostat_cfempty_v(u32 r)
61 {
62 	return (r >> 11) & 0x1;
63 }
64 #define HOST1X_CHANNEL_FIFOSTAT_CFEMPTY_V(r) \
65 	host1x_channel_fifostat_cfempty_v(r)
66 static inline u32 host1x_channel_dmastart_r(void)
67 {
68 	return 0x14;
69 }
70 #define HOST1X_CHANNEL_DMASTART \
71 	host1x_channel_dmastart_r()
72 static inline u32 host1x_channel_dmaput_r(void)
73 {
74 	return 0x18;
75 }
76 #define HOST1X_CHANNEL_DMAPUT \
77 	host1x_channel_dmaput_r()
78 static inline u32 host1x_channel_dmaget_r(void)
79 {
80 	return 0x1c;
81 }
82 #define HOST1X_CHANNEL_DMAGET \
83 	host1x_channel_dmaget_r()
84 static inline u32 host1x_channel_dmaend_r(void)
85 {
86 	return 0x20;
87 }
88 #define HOST1X_CHANNEL_DMAEND \
89 	host1x_channel_dmaend_r()
90 static inline u32 host1x_channel_dmactrl_r(void)
91 {
92 	return 0x24;
93 }
94 #define HOST1X_CHANNEL_DMACTRL \
95 	host1x_channel_dmactrl_r()
96 static inline u32 host1x_channel_dmactrl_dmastop(void)
97 {
98 	return 1 << 0;
99 }
100 #define HOST1X_CHANNEL_DMACTRL_DMASTOP \
101 	host1x_channel_dmactrl_dmastop()
102 static inline u32 host1x_channel_dmactrl_dmastop_v(u32 r)
103 {
104 	return (r >> 0) & 0x1;
105 }
106 #define HOST1X_CHANNEL_DMACTRL_DMASTOP_V(r) \
107 	host1x_channel_dmactrl_dmastop_v(r)
108 static inline u32 host1x_channel_dmactrl_dmagetrst(void)
109 {
110 	return 1 << 1;
111 }
112 #define HOST1X_CHANNEL_DMACTRL_DMAGETRST \
113 	host1x_channel_dmactrl_dmagetrst()
114 static inline u32 host1x_channel_dmactrl_dmainitget(void)
115 {
116 	return 1 << 2;
117 }
118 #define HOST1X_CHANNEL_DMACTRL_DMAINITGET \
119 	host1x_channel_dmactrl_dmainitget()
120 
121 #endif
122