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);