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path: root/drivers/media/platform/s5p-tv/hdmiphy_drv.c
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Diffstat (limited to 'drivers/media/platform/s5p-tv/hdmiphy_drv.c')
-rw-r--r--drivers/media/platform/s5p-tv/hdmiphy_drv.c329
1 files changed, 329 insertions, 0 deletions
diff --git a/drivers/media/platform/s5p-tv/hdmiphy_drv.c b/drivers/media/platform/s5p-tv/hdmiphy_drv.c
new file mode 100644
index 000000000000..f67b38631801
--- /dev/null
+++ b/drivers/media/platform/s5p-tv/hdmiphy_drv.c
@@ -0,0 +1,329 @@
+/*
+ * 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 {
+ unsigned long pixclk;
+ const u8 *data;
+};
+
+struct hdmiphy_ctx {
+ struct v4l2_subdev sd;
+ const struct hdmiphy_conf *conf_tab;
+};
+
+static const struct hdmiphy_conf hdmiphy_conf_s5pv210[] = {
+ { .pixclk = 27000000, .data = (u8 [32]) {
+ 0x01, 0x05, 0x00, 0xD8, 0x10, 0x1C, 0x30, 0x40,
+ 0x6B, 0x10, 0x02, 0x52, 0xDF, 0xF2, 0x54, 0x87,
+ 0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0,
+ 0x22, 0x40, 0xE3, 0x26, 0x00, 0x00, 0x00, 0x00, }
+ },
+ { .pixclk = 27027000, .data = (u8 [32]) {
+ 0x01, 0x05, 0x00, 0xD4, 0x10, 0x9C, 0x09, 0x64,
+ 0x6B, 0x10, 0x02, 0x52, 0xDF, 0xF2, 0x54, 0x87,
+ 0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0,
+ 0x22, 0x40, 0xE2, 0x26, 0x00, 0x00, 0x00, 0x00, }
+ },
+ { .pixclk = 74176000, .data = (u8 [32]) {
+ 0x01, 0x05, 0x00, 0xD8, 0x10, 0x9C, 0xEF, 0x5B,
+ 0x6D, 0x10, 0x01, 0x52, 0xEF, 0xF3, 0x54, 0xB9,
+ 0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0,
+ 0x22, 0x40, 0xA5, 0x26, 0x01, 0x00, 0x00, 0x00, }
+ },
+ { .pixclk = 74250000, .data = (u8 [32]) {
+ 0x01, 0x05, 0x00, 0xD8, 0x10, 0x9C, 0xF8, 0x40,
+ 0x6A, 0x10, 0x01, 0x52, 0xFF, 0xF1, 0x54, 0xBA,
+ 0x84, 0x00, 0x10, 0x38, 0x00, 0x08, 0x10, 0xE0,
+ 0x22, 0x40, 0xA4, 0x26, 0x01, 0x00, 0x00, 0x00, }
+ },
+ { /* end marker */ }
+};
+
+static const struct hdmiphy_conf hdmiphy_conf_exynos4210[] = {
+ { .pixclk = 27000000, .data = (u8 [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, }
+ },
+ { .pixclk = 27027000, .data = (u8 [32]) {
+ 0x01, 0x05, 0x00, 0xD4, 0x10, 0x9C, 0x09, 0x64,
+ 0x6B, 0x10, 0x02, 0x51, 0xDF, 0xF2, 0x54, 0x87,
+ 0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0,
+ 0x22, 0x40, 0xE2, 0x26, 0x00, 0x00, 0x00, 0x00, }
+ },
+ { .pixclk = 74176000, .data = (u8 [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, }
+ },
+ { .pixclk = 74250000, .data = (u8 [32]) {
+ 0x01, 0x05, 0x00, 0xD8, 0x10, 0x9C, 0xF8, 0x40,
+ 0x6A, 0x10, 0x01, 0x51, 0xFF, 0xF1, 0x54, 0xBA,
+ 0x84, 0x00, 0x10, 0x38, 0x00, 0x08, 0x10, 0xE0,
+ 0x22, 0x40, 0xA4, 0x26, 0x01, 0x00, 0x00, 0x00, }
+ },
+ { .pixclk = 148352000, .data = (u8 [32]) {
+ 0x01, 0x05, 0x00, 0xD8, 0x10, 0x9C, 0xEF, 0x5B,
+ 0x6D, 0x18, 0x00, 0x51, 0xEF, 0xF3, 0x54, 0xB9,
+ 0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0,
+ 0x11, 0x40, 0xA5, 0x26, 0x02, 0x00, 0x00, 0x00, }
+ },
+ { .pixclk = 148500000, .data = (u8 [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,
+ 0x11, 0x40, 0xA4, 0x26, 0x02, 0x00, 0x00, 0x00, }
+ },
+ { /* end marker */ }
+};
+
+static const struct hdmiphy_conf hdmiphy_conf_exynos4212[] = {
+ { .pixclk = 27000000, .data = (u8 [32]) {
+ 0x01, 0x11, 0x2D, 0x75, 0x00, 0x01, 0x00, 0x08,
+ 0x82, 0x00, 0x0E, 0xD9, 0x45, 0xA0, 0x34, 0xC0,
+ 0x0B, 0x80, 0x12, 0x87, 0x08, 0x24, 0x24, 0x71,
+ 0x54, 0xE3, 0x24, 0x00, 0x00, 0x00, 0x01, 0x00, }
+ },
+ { .pixclk = 27027000, .data = (u8 [32]) {
+ 0x01, 0x91, 0x2D, 0x72, 0x00, 0x64, 0x12, 0x08,
+ 0x43, 0x20, 0x0E, 0xD9, 0x45, 0xA0, 0x34, 0xC0,
+ 0x0B, 0x80, 0x12, 0x87, 0x08, 0x24, 0x24, 0x71,
+ 0x54, 0xE2, 0x24, 0x00, 0x00, 0x00, 0x01, 0x00, }
+ },
+ { .pixclk = 74176000, .data = (u8 [32]) {
+ 0x01, 0x91, 0x3E, 0x35, 0x00, 0x5B, 0xDE, 0x08,
+ 0x82, 0x20, 0x73, 0xD9, 0x45, 0xA0, 0x34, 0xC0,
+ 0x0B, 0x80, 0x12, 0x87, 0x08, 0x24, 0x24, 0x52,
+ 0x54, 0xA5, 0x24, 0x01, 0x00, 0x00, 0x01, 0x00, }
+ },
+ { .pixclk = 74250000, .data = (u8 [32]) {
+ 0x01, 0x91, 0x3E, 0x35, 0x00, 0x40, 0xF0, 0x08,
+ 0x82, 0x20, 0x73, 0xD9, 0x45, 0xA0, 0x34, 0xC0,
+ 0x0B, 0x80, 0x12, 0x87, 0x08, 0x24, 0x24, 0x52,
+ 0x54, 0xA4, 0x24, 0x01, 0x00, 0x00, 0x01, 0x00, }
+ },
+ { .pixclk = 148500000, .data = (u8 [32]) {
+ 0x01, 0x91, 0x3E, 0x15, 0x00, 0x40, 0xF0, 0x08,
+ 0x82, 0x20, 0x73, 0xD9, 0x45, 0xA0, 0x34, 0xC0,
+ 0x0B, 0x80, 0x12, 0x87, 0x08, 0x24, 0x24, 0xA4,
+ 0x54, 0x4A, 0x25, 0x03, 0x00, 0x00, 0x01, 0x00, }
+ },
+ { /* end marker */ }
+};
+
+static const struct hdmiphy_conf hdmiphy_conf_exynos4412[] = {
+ { .pixclk = 27000000, .data = (u8 [32]) {
+ 0x01, 0x11, 0x2D, 0x75, 0x40, 0x01, 0x00, 0x08,
+ 0x82, 0x00, 0x0E, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
+ 0x08, 0x80, 0x11, 0x84, 0x02, 0x22, 0x44, 0x86,
+ 0x54, 0xE4, 0x24, 0x00, 0x00, 0x00, 0x01, 0x00, }
+ },
+ { .pixclk = 27027000, .data = (u8 [32]) {
+ 0x01, 0x91, 0x2D, 0x72, 0x40, 0x64, 0x12, 0x08,
+ 0x43, 0x20, 0x0E, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
+ 0x08, 0x80, 0x11, 0x84, 0x02, 0x22, 0x44, 0x86,
+ 0x54, 0xE3, 0x24, 0x00, 0x00, 0x00, 0x01, 0x00, }
+ },
+ { .pixclk = 74176000, .data = (u8 [32]) {
+ 0x01, 0x91, 0x1F, 0x10, 0x40, 0x5B, 0xEF, 0x08,
+ 0x81, 0x20, 0xB9, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
+ 0x08, 0x80, 0x11, 0x84, 0x02, 0x22, 0x44, 0x86,
+ 0x54, 0xA6, 0x24, 0x01, 0x00, 0x00, 0x01, 0x00, }
+ },
+ { .pixclk = 74250000, .data = (u8 [32]) {
+ 0x01, 0x91, 0x1F, 0x10, 0x40, 0x40, 0xF8, 0x08,
+ 0x81, 0x20, 0xBA, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
+ 0x08, 0x80, 0x11, 0x84, 0x02, 0x22, 0x44, 0x86,
+ 0x54, 0xA5, 0x24, 0x01, 0x00, 0x00, 0x01, 0x00, }
+ },
+ { .pixclk = 148500000, .data = (u8 [32]) {
+ 0x01, 0x91, 0x1F, 0x00, 0x40, 0x40, 0xF8, 0x08,
+ 0x81, 0x20, 0xBA, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
+ 0x08, 0x80, 0x11, 0x84, 0x02, 0x22, 0x44, 0x86,
+ 0x54, 0x4B, 0x25, 0x03, 0x00, 0x00, 0x01, 0x00, }
+ },
+ { /* end marker */ }
+};
+
+static inline struct hdmiphy_ctx *sd_to_ctx(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct hdmiphy_ctx, sd);
+}
+
+static unsigned long hdmiphy_preset_to_pixclk(u32 preset)
+{
+ static const unsigned long pixclk[] = {
+ [V4L2_DV_480P59_94] = 27000000,
+ [V4L2_DV_576P50] = 27000000,
+ [V4L2_DV_720P59_94] = 74176000,
+ [V4L2_DV_720P50] = 74250000,
+ [V4L2_DV_720P60] = 74250000,
+ [V4L2_DV_1080P24] = 74250000,
+ [V4L2_DV_1080P30] = 74250000,
+ [V4L2_DV_1080I50] = 74250000,
+ [V4L2_DV_1080I60] = 74250000,
+ [V4L2_DV_1080P50] = 148500000,
+ [V4L2_DV_1080P60] = 148500000,
+ };
+ if (preset < ARRAY_SIZE(pixclk))
+ return pixclk[preset];
+ else
+ return 0;
+}
+
+static const u8 *hdmiphy_find_conf(u32 preset, const struct hdmiphy_conf *conf)
+{
+ unsigned long pixclk;
+
+ pixclk = hdmiphy_preset_to_pixclk(preset);
+ if (!pixclk)
+ return NULL;
+
+ for (; conf->pixclk; ++conf)
+ if (conf->pixclk == pixclk)
+ return conf->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 hdmiphy_ctx *ctx = sd_to_ctx(sd);
+ 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_find_conf(preset->preset, ctx->conf_tab);
+ 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)
+{
+ struct hdmiphy_ctx *ctx;
+
+ ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ ctx->conf_tab = (struct hdmiphy_conf *)id->driver_data;
+ v4l2_i2c_subdev_init(&ctx->sd, client, &hdmiphy_ops);
+
+ dev_info(&client->dev, "probe successful\n");
+ return 0;
+}
+
+static int __devexit hdmiphy_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct hdmiphy_ctx *ctx = sd_to_ctx(sd);
+
+ kfree(ctx);
+ dev_info(&client->dev, "remove successful\n");
+
+ return 0;
+}
+
+static const struct i2c_device_id hdmiphy_id[] = {
+ { "hdmiphy", (unsigned long)hdmiphy_conf_exynos4210 },
+ { "hdmiphy-s5pv210", (unsigned long)hdmiphy_conf_s5pv210 },
+ { "hdmiphy-exynos4210", (unsigned long)hdmiphy_conf_exynos4210 },
+ { "hdmiphy-exynos4212", (unsigned long)hdmiphy_conf_exynos4212 },
+ { "hdmiphy-exynos4412", (unsigned long)hdmiphy_conf_exynos4412 },
+ { },
+};
+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,
+};
+
+module_i2c_driver(hdmiphy_driver);
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-27 22:40:45 +0300