Commit | Line | Data |
---|---|---|
a52074ee TS |
1 | /* |
2 | * Samsung HDMI Physical interface driver | |
3 | * | |
4 | * Copyright (C) 2010-2011 Samsung Electronics Co.Ltd | |
5 | * Author: Tomasz Stanislawski <t.stanislaws@samsung.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | */ | |
12 | ||
13 | #include <linux/module.h> | |
14 | #include <linux/i2c.h> | |
15 | #include <linux/slab.h> | |
16 | #include <linux/clk.h> | |
17 | #include <linux/io.h> | |
18 | #include <linux/interrupt.h> | |
19 | #include <linux/irq.h> | |
20 | #include <linux/err.h> | |
21 | ||
22 | #include <media/v4l2-subdev.h> | |
23 | ||
24 | MODULE_AUTHOR("Tomasz Stanislawski <t.stanislaws@samsung.com>"); | |
25 | MODULE_DESCRIPTION("Samsung HDMI Physical interface driver"); | |
26 | MODULE_LICENSE("GPL"); | |
27 | ||
28 | struct hdmiphy_conf { | |
29 | u32 preset; | |
30 | const u8 *data; | |
31 | }; | |
32 | ||
33 | static const u8 hdmiphy_conf27[32] = { | |
34 | 0x01, 0x05, 0x00, 0xD8, 0x10, 0x1C, 0x30, 0x40, | |
35 | 0x6B, 0x10, 0x02, 0x51, 0xDf, 0xF2, 0x54, 0x87, | |
36 | 0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0, | |
37 | 0x22, 0x40, 0xe3, 0x26, 0x00, 0x00, 0x00, 0x00, | |
38 | }; | |
39 | ||
40 | static const u8 hdmiphy_conf74_175[32] = { | |
41 | 0x01, 0x05, 0x00, 0xD8, 0x10, 0x9C, 0xef, 0x5B, | |
42 | 0x6D, 0x10, 0x01, 0x51, 0xef, 0xF3, 0x54, 0xb9, | |
43 | 0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0, | |
44 | 0x22, 0x40, 0xa5, 0x26, 0x01, 0x00, 0x00, 0x00, | |
45 | }; | |
46 | ||
47 | static const u8 hdmiphy_conf74_25[32] = { | |
48 | 0x01, 0x05, 0x00, 0xd8, 0x10, 0x9c, 0xf8, 0x40, | |
49 | 0x6a, 0x10, 0x01, 0x51, 0xff, 0xf1, 0x54, 0xba, | |
50 | 0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xe0, | |
51 | 0x22, 0x40, 0xa4, 0x26, 0x01, 0x00, 0x00, 0x00, | |
52 | }; | |
53 | ||
54 | static const u8 hdmiphy_conf148_5[32] = { | |
55 | 0x01, 0x05, 0x00, 0xD8, 0x10, 0x9C, 0xf8, 0x40, | |
56 | 0x6A, 0x18, 0x00, 0x51, 0xff, 0xF1, 0x54, 0xba, | |
57 | 0x84, 0x00, 0x10, 0x38, 0x00, 0x08, 0x10, 0xE0, | |
58 | 0x22, 0x40, 0xa4, 0x26, 0x02, 0x00, 0x00, 0x00, | |
59 | }; | |
60 | ||
61 | static const struct hdmiphy_conf hdmiphy_conf[] = { | |
62 | { V4L2_DV_480P59_94, hdmiphy_conf27 }, | |
63 | { V4L2_DV_1080P30, hdmiphy_conf74_175 }, | |
64 | { V4L2_DV_720P59_94, hdmiphy_conf74_175 }, | |
65 | { V4L2_DV_720P60, hdmiphy_conf74_25 }, | |
66 | { V4L2_DV_1080P50, hdmiphy_conf148_5 }, | |
67 | { V4L2_DV_1080P60, hdmiphy_conf148_5 }, | |
68 | }; | |
69 | ||
70 | const u8 *hdmiphy_preset2conf(u32 preset) | |
71 | { | |
72 | int i; | |
73 | for (i = 0; i < ARRAY_SIZE(hdmiphy_conf); ++i) | |
74 | if (hdmiphy_conf[i].preset == preset) | |
75 | return hdmiphy_conf[i].data; | |
76 | return NULL; | |
77 | } | |
78 | ||
79 | static int hdmiphy_s_power(struct v4l2_subdev *sd, int on) | |
80 | { | |
81 | /* to be implemented */ | |
82 | return 0; | |
83 | } | |
84 | ||
85 | static int hdmiphy_s_dv_preset(struct v4l2_subdev *sd, | |
86 | struct v4l2_dv_preset *preset) | |
87 | { | |
88 | const u8 *data; | |
89 | u8 buffer[32]; | |
90 | int ret; | |
91 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
92 | struct device *dev = &client->dev; | |
93 | ||
94 | dev_info(dev, "s_dv_preset(preset = %d)\n", preset->preset); | |
95 | data = hdmiphy_preset2conf(preset->preset); | |
96 | if (!data) { | |
97 | dev_err(dev, "format not supported\n"); | |
98 | return -EINVAL; | |
99 | } | |
100 | ||
101 | /* storing configuration to the device */ | |
102 | memcpy(buffer, data, 32); | |
103 | ret = i2c_master_send(client, buffer, 32); | |
104 | if (ret != 32) { | |
105 | dev_err(dev, "failed to configure HDMIPHY via I2C\n"); | |
106 | return -EIO; | |
107 | } | |
108 | ||
109 | return 0; | |
110 | } | |
111 | ||
112 | static int hdmiphy_s_stream(struct v4l2_subdev *sd, int enable) | |
113 | { | |
114 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
115 | struct device *dev = &client->dev; | |
116 | u8 buffer[2]; | |
117 | int ret; | |
118 | ||
119 | dev_info(dev, "s_stream(%d)\n", enable); | |
120 | /* going to/from configuration from/to operation mode */ | |
121 | buffer[0] = 0x1f; | |
122 | buffer[1] = enable ? 0x80 : 0x00; | |
123 | ||
124 | ret = i2c_master_send(client, buffer, 2); | |
125 | if (ret != 2) { | |
126 | dev_err(dev, "stream (%d) failed\n", enable); | |
127 | return -EIO; | |
128 | } | |
129 | return 0; | |
130 | } | |
131 | ||
132 | static const struct v4l2_subdev_core_ops hdmiphy_core_ops = { | |
133 | .s_power = hdmiphy_s_power, | |
134 | }; | |
135 | ||
136 | static const struct v4l2_subdev_video_ops hdmiphy_video_ops = { | |
137 | .s_dv_preset = hdmiphy_s_dv_preset, | |
138 | .s_stream = hdmiphy_s_stream, | |
139 | }; | |
140 | ||
141 | static const struct v4l2_subdev_ops hdmiphy_ops = { | |
142 | .core = &hdmiphy_core_ops, | |
143 | .video = &hdmiphy_video_ops, | |
144 | }; | |
145 | ||
146 | static int __devinit hdmiphy_probe(struct i2c_client *client, | |
147 | const struct i2c_device_id *id) | |
148 | { | |
149 | static struct v4l2_subdev sd; | |
150 | ||
151 | v4l2_i2c_subdev_init(&sd, client, &hdmiphy_ops); | |
152 | dev_info(&client->dev, "probe successful\n"); | |
153 | return 0; | |
154 | } | |
155 | ||
156 | static int __devexit hdmiphy_remove(struct i2c_client *client) | |
157 | { | |
158 | dev_info(&client->dev, "remove successful\n"); | |
159 | return 0; | |
160 | } | |
161 | ||
162 | static const struct i2c_device_id hdmiphy_id[] = { | |
163 | { "hdmiphy", 0 }, | |
164 | { }, | |
165 | }; | |
166 | MODULE_DEVICE_TABLE(i2c, hdmiphy_id); | |
167 | ||
168 | static struct i2c_driver hdmiphy_driver = { | |
169 | .driver = { | |
170 | .name = "s5p-hdmiphy", | |
171 | .owner = THIS_MODULE, | |
172 | }, | |
173 | .probe = hdmiphy_probe, | |
174 | .remove = __devexit_p(hdmiphy_remove), | |
175 | .id_table = hdmiphy_id, | |
176 | }; | |
177 | ||
178 | static int __init hdmiphy_init(void) | |
179 | { | |
180 | return i2c_add_driver(&hdmiphy_driver); | |
181 | } | |
182 | module_init(hdmiphy_init); | |
183 | ||
184 | static void __exit hdmiphy_exit(void) | |
185 | { | |
186 | i2c_del_driver(&hdmiphy_driver); | |
187 | } | |
188 | module_exit(hdmiphy_exit); |