1 files changed, 188 insertions, 0 deletions

diff --git a/drivers/media/video/s5p-tv/hdmiphy_drv.c b/drivers/media/video/s5p-tv/hdmiphy_drv.c
new file mode 100644
index 00000000000..6693f4aff10
--- /dev/null
+++ b/drivers/media/video/s5p-tv/hdmiphy_drv.c
@@ -0,0 +1,188 @@
+/*
+ * Samsung HDMI Physical interface driver
+ *
+ * Copyright (C) 2010-2011 Samsung Electronics Co.Ltd
+ * Author: Tomasz Stanislawski <t.stanislaws@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/err.h>
+
+#include <media/v4l2-subdev.h>
+
+MODULE_AUTHOR("Tomasz Stanislawski <t.stanislaws@samsung.com>");
+MODULE_DESCRIPTION("Samsung HDMI Physical interface driver");
+MODULE_LICENSE("GPL");
+
+struct hdmiphy_conf {
+        u32 preset;
+        const u8 *data;
+};
+
+static const u8 hdmiphy_conf27[32] = {
+        0x01, 0x05, 0x00, 0xD8, 0x10, 0x1C, 0x30, 0x40,
+        0x6B, 0x10, 0x02, 0x51, 0xDf, 0xF2, 0x54, 0x87,
+        0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0,
+        0x22, 0x40, 0xe3, 0x26, 0x00, 0x00, 0x00, 0x00,
+};
+
+static const u8 hdmiphy_conf74_175[32] = {
+        0x01, 0x05, 0x00, 0xD8, 0x10, 0x9C, 0xef, 0x5B,
+        0x6D, 0x10, 0x01, 0x51, 0xef, 0xF3, 0x54, 0xb9,
+        0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0,
+        0x22, 0x40, 0xa5, 0x26, 0x01, 0x00, 0x00, 0x00,
+};
+
+static const u8 hdmiphy_conf74_25[32] = {
+        0x01, 0x05, 0x00, 0xd8, 0x10, 0x9c, 0xf8, 0x40,
+        0x6a, 0x10, 0x01, 0x51, 0xff, 0xf1, 0x54, 0xba,
+        0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xe0,
+        0x22, 0x40, 0xa4, 0x26, 0x01, 0x00, 0x00, 0x00,
+};
+
+static const u8 hdmiphy_conf148_5[32] = {
+        0x01, 0x05, 0x00, 0xD8, 0x10, 0x9C, 0xf8, 0x40,
+        0x6A, 0x18, 0x00, 0x51, 0xff, 0xF1, 0x54, 0xba,
+        0x84, 0x00, 0x10, 0x38, 0x00, 0x08, 0x10, 0xE0,
+        0x22, 0x40, 0xa4, 0x26, 0x02, 0x00, 0x00, 0x00,
+};
+
+static const struct hdmiphy_conf hdmiphy_conf[] = {
+        { V4L2_DV_480P59_94, hdmiphy_conf27 },
+        { V4L2_DV_1080P30, hdmiphy_conf74_175 },
+        { V4L2_DV_720P59_94, hdmiphy_conf74_175 },
+        { V4L2_DV_720P60, hdmiphy_conf74_25 },
+        { V4L2_DV_1080P50, hdmiphy_conf148_5 },
+        { V4L2_DV_1080P60, hdmiphy_conf148_5 },
+};
+
+const u8 *hdmiphy_preset2conf(u32 preset)
+{
+        int i;
+        for (i = 0; i < ARRAY_SIZE(hdmiphy_conf); ++i)
+                if (hdmiphy_conf[i].preset == preset)
+                        return hdmiphy_conf[i].data;
+        return NULL;
+}
+
+static int hdmiphy_s_power(struct v4l2_subdev *sd, int on)
+{
+        /* to be implemented */
+        return 0;
+}
+
+static int hdmiphy_s_dv_preset(struct v4l2_subdev *sd,
+        struct v4l2_dv_preset *preset)
+{
+        const u8 *data;
+        u8 buffer[32];
+        int ret;
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
+        struct device *dev = &client->dev;
+
+        dev_info(dev, "s_dv_preset(preset = %d)\n", preset->preset);
+        data = hdmiphy_preset2conf(preset->preset);
+        if (!data) {
+                dev_err(dev, "format not supported\n");
+                return -EINVAL;
+        }
+
+        /* storing configuration to the device */
+        memcpy(buffer, data, 32);
+        ret = i2c_master_send(client, buffer, 32);
+        if (ret != 32) {
+                dev_err(dev, "failed to configure HDMIPHY via I2C\n");
+                return -EIO;
+        }
+
+        return 0;
+}
+
+static int hdmiphy_s_stream(struct v4l2_subdev *sd, int enable)
+{
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
+        struct device *dev = &client->dev;
+        u8 buffer[2];
+        int ret;
+
+        dev_info(dev, "s_stream(%d)\n", enable);
+        /* going to/from configuration from/to operation mode */
+        buffer[0] = 0x1f;
+        buffer[1] = enable ? 0x80 : 0x00;
+
+        ret = i2c_master_send(client, buffer, 2);
+        if (ret != 2) {
+                dev_err(dev, "stream (%d) failed\n", enable);
+                return -EIO;
+        }
+        return 0;
+}
+
+static const struct v4l2_subdev_core_ops hdmiphy_core_ops = {
+        .s_power =  hdmiphy_s_power,
+};
+
+static const struct v4l2_subdev_video_ops hdmiphy_video_ops = {
+        .s_dv_preset = hdmiphy_s_dv_preset,
+        .s_stream =  hdmiphy_s_stream,
+};
+
+static const struct v4l2_subdev_ops hdmiphy_ops = {
+        .core = &hdmiphy_core_ops,
+        .video = &hdmiphy_video_ops,
+};
+
+static int __devinit hdmiphy_probe(struct i2c_client *client,
+        const struct i2c_device_id *id)
+{
+        static struct v4l2_subdev sd;
+
+        v4l2_i2c_subdev_init(&sd, client, &hdmiphy_ops);
+        dev_info(&client->dev, "probe successful\n");
+        return 0;
+}
+
+static int __devexit hdmiphy_remove(struct i2c_client *client)
+{
+        dev_info(&client->dev, "remove successful\n");
+        return 0;
+}
+
+static const struct i2c_device_id hdmiphy_id[] = {
+        { "hdmiphy", 0 },
+        { },
+};
+MODULE_DEVICE_TABLE(i2c, hdmiphy_id);
+
+static struct i2c_driver hdmiphy_driver = {
+        .driver = {
+                .name   = "s5p-hdmiphy",
+                .owner  = THIS_MODULE,
+        },
+        .probe          = hdmiphy_probe,
+        .remove         = __devexit_p(hdmiphy_remove),
+        .id_table = hdmiphy_id,
+};
+
+static int __init hdmiphy_init(void)
+{
+        return i2c_add_driver(&hdmiphy_driver);
+}
+module_init(hdmiphy_init);
+
+static void __exit hdmiphy_exit(void)
+{
+        i2c_del_driver(&hdmiphy_driver);
+}
+module_exit(hdmiphy_exit);