1/*
2 * Copyright 2012 Nouveau community
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: Martin Peres
23 */
24#include "priv.h"
25
26#include <subdev/bios/extdev.h>
27#include <subdev/i2c.h>
28
29static bool
30probe_monitoring_device(struct nvkm_i2c_port *i2c,
31			struct i2c_board_info *info, void *data)
32{
33	struct nvkm_therm_priv *priv = data;
34	struct nvbios_therm_sensor *sensor = &priv->bios_sensor;
35	struct i2c_client *client;
36
37	request_module("%s%s", I2C_MODULE_PREFIX, info->type);
38
39	client = i2c_new_device(&i2c->adapter, info);
40	if (!client)
41		return false;
42
43	if (!client->dev.driver ||
44	    to_i2c_driver(client->dev.driver)->detect(client, info)) {
45		i2c_unregister_device(client);
46		return false;
47	}
48
49	nv_info(priv,
50		"Found an %s at address 0x%x (controlled by lm_sensors, "
51		"temp offset %+i C)\n",
52		info->type, info->addr, sensor->offset_constant);
53	priv->ic = client;
54	return true;
55}
56
57static struct nvkm_i2c_board_info
58nv_board_infos[] = {
59	{ { I2C_BOARD_INFO("w83l785ts", 0x2d) }, 0 },
60	{ { I2C_BOARD_INFO("w83781d", 0x2d) }, 0  },
61	{ { I2C_BOARD_INFO("adt7473", 0x2e) }, 40  },
62	{ { I2C_BOARD_INFO("adt7473", 0x2d) }, 40  },
63	{ { I2C_BOARD_INFO("adt7473", 0x2c) }, 40  },
64	{ { I2C_BOARD_INFO("f75375", 0x2e) }, 0  },
65	{ { I2C_BOARD_INFO("lm99", 0x4c) }, 0  },
66	{ { I2C_BOARD_INFO("lm90", 0x4c) }, 0  },
67	{ { I2C_BOARD_INFO("lm90", 0x4d) }, 0  },
68	{ { I2C_BOARD_INFO("adm1021", 0x18) }, 0  },
69	{ { I2C_BOARD_INFO("adm1021", 0x19) }, 0  },
70	{ { I2C_BOARD_INFO("adm1021", 0x1a) }, 0  },
71	{ { I2C_BOARD_INFO("adm1021", 0x29) }, 0  },
72	{ { I2C_BOARD_INFO("adm1021", 0x2a) }, 0  },
73	{ { I2C_BOARD_INFO("adm1021", 0x2b) }, 0  },
74	{ { I2C_BOARD_INFO("adm1021", 0x4c) }, 0  },
75	{ { I2C_BOARD_INFO("adm1021", 0x4d) }, 0  },
76	{ { I2C_BOARD_INFO("adm1021", 0x4e) }, 0  },
77	{ { I2C_BOARD_INFO("lm63", 0x18) }, 0  },
78	{ { I2C_BOARD_INFO("lm63", 0x4e) }, 0  },
79	{ }
80};
81
82void
83nvkm_therm_ic_ctor(struct nvkm_therm *therm)
84{
85	struct nvkm_therm_priv *priv = (void *)therm;
86	struct nvkm_bios *bios = nvkm_bios(therm);
87	struct nvkm_i2c *i2c = nvkm_i2c(therm);
88	struct nvbios_extdev_func extdev_entry;
89
90	if (!nvbios_extdev_find(bios, NVBIOS_EXTDEV_LM89, &extdev_entry)) {
91		struct nvkm_i2c_board_info board[] = {
92		  { { I2C_BOARD_INFO("lm90", extdev_entry.addr >> 1) }, 0},
93		  { }
94		};
95
96		i2c->identify(i2c, NV_I2C_DEFAULT(0), "monitoring device",
97			      board, probe_monitoring_device, therm);
98		if (priv->ic)
99			return;
100	}
101
102	if (!nvbios_extdev_find(bios, NVBIOS_EXTDEV_ADT7473, &extdev_entry)) {
103		struct nvkm_i2c_board_info board[] = {
104		  { { I2C_BOARD_INFO("adt7473", extdev_entry.addr >> 1) }, 20 },
105		  { }
106		};
107
108		i2c->identify(i2c, NV_I2C_DEFAULT(0), "monitoring device",
109			      board, probe_monitoring_device, therm);
110		if (priv->ic)
111			return;
112	}
113
114	/* The vbios doesn't provide the address of an exisiting monitoring
115	   device. Let's try our static list.
116	 */
117	i2c->identify(i2c, NV_I2C_DEFAULT(0), "monitoring device",
118		      nv_board_infos, probe_monitoring_device, therm);
119}
120