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git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h
3 #include <core/subdev.h>
4 #include <core/event.h>
6 #include <subdev/bios.h>
7 #include <subdev/bios/i2c.h>
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
19 struct nvkm_i2c_ntfy_rep
{
23 struct nvkm_i2c_bus_probe
{
24 struct i2c_board_info dev
;
25 u8 udelay
; /* set to 0 to use the standard delay */
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
38 struct list_head head
;
39 struct i2c_adapter i2c
;
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 *);
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)
57 struct list_head head
;
58 struct i2c_adapter i2c
;
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
);
72 const struct nvkm_i2c_func
*func
;
73 struct nvkm_subdev subdev
;
79 struct nvkm_event event
;
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);
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
**);
92 int gm204_i2c_new(struct nvkm_device
*, int, struct nvkm_i2c
**);
95 nvkm_rdi2cr(struct i2c_adapter
*adap
, u8 addr
, u8 reg
)
98 struct i2c_msg msgs
[] = {
99 { .addr
= addr
, .flags
= 0, .len
= 1, .buf
= ®
},
100 { .addr
= addr
, .flags
= I2C_M_RD
, .len
= 1, .buf
= &val
},
103 int ret
= i2c_transfer(adap
, msgs
, ARRAY_SIZE(msgs
));
111 nvkm_wri2cr(struct i2c_adapter
*adap
, u8 addr
, u8 reg
, u8 val
)
113 u8 buf
[2] = { reg
, val
};
114 struct i2c_msg msgs
[] = {
115 { .addr
= addr
, .flags
= 0, .len
= 2, .buf
= buf
},
118 int ret
= i2c_transfer(adap
, msgs
, ARRAY_SIZE(msgs
));
126 nvkm_probe_i2c(struct i2c_adapter
*adap
, u8 addr
)
128 return nvkm_rdi2cr(adap
, addr
, 0) >= 0;
132 nvkm_rdaux(struct nvkm_i2c_aux
*aux
, u32 addr
, u8
*data
, u8 size
)
134 int ret
= nvkm_i2c_aux_acquire(aux
);
136 ret
= nvkm_i2c_aux_xfer(aux
, true, 9, addr
, data
, size
);
137 nvkm_i2c_aux_release(aux
);
143 nvkm_wraux(struct nvkm_i2c_aux
*aux
, u32 addr
, u8
*data
, u8 size
)
145 int ret
= nvkm_i2c_aux_acquire(aux
);
147 ret
= nvkm_i2c_aux_xfer(aux
, true, 8, addr
, data
, size
);
148 nvkm_i2c_aux_release(aux
);