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b9ec1424 BS |
1 | #ifndef __NVKM_I2C_H__ |
2 | #define __NVKM_I2C_H__ | |
4196faa8 | 3 | #include <core/subdev.h> |
b9ec1424 | 4 | #include <core/event.h> |
4196faa8 BS |
5 | |
6 | #include <subdev/bios.h> | |
7 | #include <subdev/bios/i2c.h> | |
6ee73861 | 8 | |
79ca2770 BS |
9 | struct nvkm_i2c_ntfy_req { |
10 | #define NVKM_I2C_PLUG 0x01 | |
11 | #define NVKM_I2C_UNPLUG 0x02 | |
12 | #define NVKM_I2C_IRQ 0x04 | |
13 | #define NVKM_I2C_DONE 0x08 | |
14 | #define NVKM_I2C_ANY 0x0f | |
15 | u8 mask; | |
16 | u8 port; | |
17 | }; | |
18 | ||
19 | struct nvkm_i2c_ntfy_rep { | |
20 | u8 mask; | |
3668a339 BS |
21 | }; |
22 | ||
2aa5eac5 BS |
23 | struct nvkm_i2c_bus_probe { |
24 | struct i2c_board_info dev; | |
25 | u8 udelay; /* set to 0 to use the standard delay */ | |
26 | }; | |
7dcd060c | 27 | |
2aa5eac5 BS |
28 | struct nvkm_i2c_bus { |
29 | const struct nvkm_i2c_bus_func *func; | |
30 | struct nvkm_i2c_pad *pad; | |
31 | #define NVKM_I2C_BUS_CCB(n) /* 'n' is ccb index */ (n) | |
32 | #define NVKM_I2C_BUS_EXT(n) /* 'n' is dcb external encoder type */ ((n) + 0x100) | |
33 | #define NVKM_I2C_BUS_PRI /* ccb primary comm. port */ -1 | |
34 | #define NVKM_I2C_BUS_SEC /* ccb secondary comm. port */ -2 | |
35 | int id; | |
7dcd060c | 36 | |
2aa5eac5 BS |
37 | struct mutex mutex; |
38 | struct list_head head; | |
39 | struct i2c_adapter i2c; | |
7dcd060c BS |
40 | }; |
41 | ||
2aa5eac5 BS |
42 | int nvkm_i2c_bus_acquire(struct nvkm_i2c_bus *); |
43 | void nvkm_i2c_bus_release(struct nvkm_i2c_bus *); | |
44 | int nvkm_i2c_bus_probe(struct nvkm_i2c_bus *, const char *, | |
45 | struct nvkm_i2c_bus_probe *, | |
46 | bool (*)(struct nvkm_i2c_bus *, | |
47 | struct i2c_board_info *, void *), void *); | |
7dcd060c | 48 | |
2aa5eac5 BS |
49 | struct nvkm_i2c_aux { |
50 | const struct nvkm_i2c_aux_func *func; | |
51 | struct nvkm_i2c_pad *pad; | |
52 | #define NVKM_I2C_AUX_CCB(n) /* 'n' is ccb index */ (n) | |
53 | #define NVKM_I2C_AUX_EXT(n) /* 'n' is dcb external encoder type */ ((n) + 0x100) | |
54 | int id; | |
6ee73861 | 55 | |
2aa5eac5 BS |
56 | struct mutex mutex; |
57 | struct list_head head; | |
58 | struct i2c_adapter i2c; | |
59 | ||
60 | u32 intr; | |
9e2b734f MP |
61 | }; |
62 | ||
2aa5eac5 BS |
63 | void nvkm_i2c_aux_monitor(struct nvkm_i2c_aux *, bool monitor); |
64 | int nvkm_i2c_aux_acquire(struct nvkm_i2c_aux *); | |
65 | void nvkm_i2c_aux_release(struct nvkm_i2c_aux *); | |
66 | int nvkm_i2c_aux_xfer(struct nvkm_i2c_aux *, bool retry, u8 type, | |
67 | u32 addr, u8 *data, u8 size); | |
68 | int nvkm_i2c_aux_lnk_ctl(struct nvkm_i2c_aux *, int link_nr, int link_bw, | |
69 | bool enhanced_framing); | |
70 | ||
b9ec1424 | 71 | struct nvkm_i2c { |
49bd8da5 | 72 | const struct nvkm_i2c_func *func; |
5b920d92 | 73 | struct nvkm_subdev subdev; |
4196faa8 | 74 | |
2aa5eac5 BS |
75 | struct list_head pad; |
76 | struct list_head bus; | |
77 | struct list_head aux; | |
49bd8da5 BS |
78 | |
79 | struct nvkm_event event; | |
4196faa8 BS |
80 | }; |
81 | ||
2aa5eac5 BS |
82 | struct nvkm_i2c_bus *nvkm_i2c_bus_find(struct nvkm_i2c *, int); |
83 | struct nvkm_i2c_aux *nvkm_i2c_aux_find(struct nvkm_i2c *, int); | |
84 | ||
49bd8da5 BS |
85 | int nv04_i2c_new(struct nvkm_device *, int, struct nvkm_i2c **); |
86 | int nv4e_i2c_new(struct nvkm_device *, int, struct nvkm_i2c **); | |
87 | int nv50_i2c_new(struct nvkm_device *, int, struct nvkm_i2c **); | |
88 | int g94_i2c_new(struct nvkm_device *, int, struct nvkm_i2c **); | |
89 | int gf117_i2c_new(struct nvkm_device *, int, struct nvkm_i2c **); | |
90 | int gf119_i2c_new(struct nvkm_device *, int, struct nvkm_i2c **); | |
91 | int gk104_i2c_new(struct nvkm_device *, int, struct nvkm_i2c **); | |
db1eb528 | 92 | int gm200_i2c_new(struct nvkm_device *, int, struct nvkm_i2c **); |
6ee73861 | 93 | |
7dcd060c | 94 | static inline int |
2aa5eac5 | 95 | nvkm_rdi2cr(struct i2c_adapter *adap, u8 addr, u8 reg) |
7dcd060c BS |
96 | { |
97 | u8 val; | |
98 | struct i2c_msg msgs[] = { | |
99 | { .addr = addr, .flags = 0, .len = 1, .buf = ® }, | |
100 | { .addr = addr, .flags = I2C_M_RD, .len = 1, .buf = &val }, | |
101 | }; | |
102 | ||
2aa5eac5 | 103 | int ret = i2c_transfer(adap, msgs, ARRAY_SIZE(msgs)); |
7dcd060c BS |
104 | if (ret != 2) |
105 | return -EIO; | |
106 | ||
107 | return val; | |
108 | } | |
109 | ||
b71c0892 KH |
110 | static inline int |
111 | nv_rd16i2cr(struct i2c_adapter *adap, u8 addr, u8 reg) | |
112 | { | |
113 | u8 val[2]; | |
114 | struct i2c_msg msgs[] = { | |
115 | { .addr = addr, .flags = 0, .len = 1, .buf = ® }, | |
116 | { .addr = addr, .flags = I2C_M_RD, .len = 2, .buf = val }, | |
117 | }; | |
118 | ||
119 | int ret = i2c_transfer(adap, msgs, ARRAY_SIZE(msgs)); | |
120 | if (ret != 2) | |
121 | return -EIO; | |
122 | ||
123 | return val[0] << 8 | val[1]; | |
124 | } | |
125 | ||
7dcd060c | 126 | static inline int |
2aa5eac5 | 127 | nvkm_wri2cr(struct i2c_adapter *adap, u8 addr, u8 reg, u8 val) |
7dcd060c BS |
128 | { |
129 | u8 buf[2] = { reg, val }; | |
130 | struct i2c_msg msgs[] = { | |
131 | { .addr = addr, .flags = 0, .len = 2, .buf = buf }, | |
132 | }; | |
133 | ||
2aa5eac5 | 134 | int ret = i2c_transfer(adap, msgs, ARRAY_SIZE(msgs)); |
7dcd060c BS |
135 | if (ret != 1) |
136 | return -EIO; | |
137 | ||
138 | return 0; | |
139 | } | |
140 | ||
b71c0892 KH |
141 | static inline int |
142 | nv_wr16i2cr(struct i2c_adapter *adap, u8 addr, u8 reg, u16 val) | |
143 | { | |
144 | u8 buf[3] = { reg, val >> 8, val & 0xff}; | |
145 | struct i2c_msg msgs[] = { | |
146 | { .addr = addr, .flags = 0, .len = 3, .buf = buf }, | |
147 | }; | |
148 | ||
149 | int ret = i2c_transfer(adap, msgs, ARRAY_SIZE(msgs)); | |
150 | if (ret != 1) | |
151 | return -EIO; | |
152 | ||
153 | return 0; | |
154 | } | |
155 | ||
7dcd060c | 156 | static inline bool |
2aa5eac5 BS |
157 | nvkm_probe_i2c(struct i2c_adapter *adap, u8 addr) |
158 | { | |
159 | return nvkm_rdi2cr(adap, addr, 0) >= 0; | |
160 | } | |
161 | ||
162 | static inline int | |
163 | nvkm_rdaux(struct nvkm_i2c_aux *aux, u32 addr, u8 *data, u8 size) | |
7dcd060c | 164 | { |
2aa5eac5 BS |
165 | int ret = nvkm_i2c_aux_acquire(aux); |
166 | if (ret == 0) { | |
167 | ret = nvkm_i2c_aux_xfer(aux, true, 9, addr, data, size); | |
168 | nvkm_i2c_aux_release(aux); | |
169 | } | |
170 | return ret; | |
7dcd060c BS |
171 | } |
172 | ||
2aa5eac5 BS |
173 | static inline int |
174 | nvkm_wraux(struct nvkm_i2c_aux *aux, u32 addr, u8 *data, u8 size) | |
175 | { | |
176 | int ret = nvkm_i2c_aux_acquire(aux); | |
177 | if (ret == 0) { | |
178 | ret = nvkm_i2c_aux_xfer(aux, true, 8, addr, data, size); | |
179 | nvkm_i2c_aux_release(aux); | |
180 | } | |
181 | return ret; | |
182 | } | |
4196faa8 | 183 | #endif |