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#include <linux/platform_device.h>
#include <linux/kernel.h>
#include <mach/dc.h>
#include <mach/fb.h>
#include "dc_reg.h"
#include "dc_priv.h"
#include "nvsd.h"
/****************
* Current mode *
****************/
static ssize_t mode_show(struct device *device,
struct device_attribute *attr, char *buf)
{
struct nvhost_device *ndev = to_nvhost_device(device);
struct tegra_dc *dc = nvhost_get_drvdata(ndev);
struct tegra_dc_mode *m;
ssize_t res;
mutex_lock(&dc->lock);
m = &dc->mode;
res = snprintf(buf, PAGE_SIZE,
"pclk: %d\n"
"h_ref_to_sync: %d\n"
"v_ref_to_sync: %d\n"
"h_sync_width: %d\n"
"v_sync_width: %d\n"
"h_back_porch: %d\n"
"v_back_porch: %d\n"
"h_active: %d\n"
"v_active: %d\n"
"h_front_porch: %d\n"
"v_front_porch: %d\n"
"stereo_mode: %d\n",
m->pclk, m->h_ref_to_sync, m->v_ref_to_sync,
m->h_sync_width, m->v_sync_width,
m->h_back_porch, m->v_back_porch,
m->h_active, m->v_active,
m->h_front_porch, m->v_front_porch,
m->stereo_mode);
mutex_unlock(&dc->lock);
return res;
}
static DEVICE_ATTR(mode, S_IRUGO, mode_show, NULL);
/**************
* DC Enabled *
**************/
static ssize_t enable_show(struct device *device,
struct device_attribute *attr, char *buf)
{
struct nvhost_device *ndev = to_nvhost_device(device);
struct tegra_dc *dc = nvhost_get_drvdata(ndev);
ssize_t res;
mutex_lock(&dc->lock);
res = snprintf(buf, PAGE_SIZE, "%d\n", dc->enabled);
mutex_unlock(&dc->lock);
return res;
}
static ssize_t enable_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct nvhost_device *ndev = to_nvhost_device(dev);
struct tegra_dc *dc = nvhost_get_drvdata(ndev);
int enabled;
enabled = simple_strtoul(buf, NULL, 10);
if (enabled) {
tegra_dc_enable(dc);
} else {
tegra_dc_disable(dc);
}
return count;
}
static DEVICE_ATTR(enable, S_IRUGO|S_IWUSR|S_IWGRP, enable_show, enable_store);
#define ORIENTATION_PORTRAIT "portrait"
#define ORIENTATION_LANDSCAPE "landscape"
static ssize_t orientation_3d_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct nvhost_device *ndev = to_nvhost_device(dev);
struct tegra_dc *dc = nvhost_get_drvdata(ndev);
struct tegra_dc_out *dc_out = dc->out;
const char *orientation;
switch (dc_out->stereo->orientation) {
case TEGRA_DC_STEREO_LANDSCAPE:
orientation = ORIENTATION_LANDSCAPE;
break;
case TEGRA_DC_STEREO_PORTRAIT:
orientation = ORIENTATION_PORTRAIT;
break;
default:
pr_err("Invalid value is stored for stereo_orientation.\n");
return -EINVAL;
}
return snprintf(buf, PAGE_SIZE, "%s\n", orientation);
}
static ssize_t orientation_3d_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t cnt)
{
struct nvhost_device *ndev = to_nvhost_device(dev);
struct tegra_dc *dc = nvhost_get_drvdata(ndev);
struct tegra_dc_out *dc_out = dc->out;
struct tegra_stereo_out *stereo = dc_out->stereo;
int orientation;
if (0 == strncmp(buf, ORIENTATION_PORTRAIT,
min(cnt, ARRAY_SIZE(ORIENTATION_PORTRAIT) - 1))) {
orientation = TEGRA_DC_STEREO_PORTRAIT;
} else if (0 == strncmp(buf, ORIENTATION_LANDSCAPE,
min(cnt, ARRAY_SIZE(ORIENTATION_LANDSCAPE) - 1))) {
orientation = TEGRA_DC_STEREO_LANDSCAPE;
} else {
pr_err("Invalid property value for stereo_orientation.\n");
return -EINVAL;
}
stereo->orientation = orientation;
stereo->set_orientation(orientation);
return cnt;
}
static DEVICE_ATTR(stereo_orientation,
S_IRUGO|S_IWUGO, orientation_3d_show, orientation_3d_store);
#define MODE_2D "2d"
#define MODE_3D "3d"
static ssize_t mode_3d_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct nvhost_device *ndev = to_nvhost_device(dev);
struct tegra_dc *dc = nvhost_get_drvdata(ndev);
struct tegra_dc_out *dc_out = dc->out;
const char *mode;
switch (dc_out->stereo->mode_2d_3d) {
case TEGRA_DC_STEREO_MODE_2D:
mode = MODE_2D;
break;
case TEGRA_DC_STEREO_MODE_3D:
mode = MODE_3D;
break;
default:
pr_err("Invalid value is stored for stereo_mode.\n");
return -EINVAL;
}
return snprintf(buf, PAGE_SIZE, "%s\n", mode);
}
static ssize_t mode_3d_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t cnt)
{
struct nvhost_device *ndev = to_nvhost_device(dev);
struct tegra_dc *dc = nvhost_get_drvdata(ndev);
struct tegra_dc_out *dc_out = dc->out;
struct tegra_stereo_out *stereo = dc_out->stereo;
int mode;
if (0 == strncmp(buf, MODE_2D, min(cnt, ARRAY_SIZE(MODE_2D) - 1))) {
mode = TEGRA_DC_STEREO_MODE_2D;
} else if (0 == strncmp(buf, MODE_3D,
min(cnt, ARRAY_SIZE(MODE_3D) - 1))) {
mode = TEGRA_DC_STEREO_MODE_3D;
} else {
pr_err("Invalid property value for stereo_mode.\n");
return -EINVAL;
}
stereo->mode_2d_3d = mode;
stereo->set_mode(mode);
return cnt;
}
static DEVICE_ATTR(stereo_mode,
S_IRUGO|S_IWUGO, mode_3d_show, mode_3d_store);
/********
* Init *
********/
void __devexit tegra_dc_remove_sysfs(struct device *dev)
{
struct nvhost_device *ndev = to_nvhost_device(dev);
struct tegra_dc *dc = nvhost_get_drvdata(ndev);
struct tegra_dc_sd_settings *sd_settings = dc->out->sd_settings;
device_remove_file(dev, &dev_attr_mode);
device_remove_file(dev, &dev_attr_enable);
if (dc->out->stereo) {
device_remove_file(dev, &dev_attr_stereo_orientation);
device_remove_file(dev, &dev_attr_stereo_mode);
}
if(sd_settings) {
nvsd_remove_sysfs(dev);
}
}
void tegra_dc_create_sysfs(struct device *dev)
{
struct nvhost_device *ndev = to_nvhost_device(dev);
struct tegra_dc *dc = nvhost_get_drvdata(ndev);
struct tegra_dc_sd_settings *sd_settings = dc->out->sd_settings;
int error = 0;
error |= device_create_file(dev, &dev_attr_mode);
error |= device_create_file(dev, &dev_attr_enable);
if (dc->out->stereo) {
error |= device_create_file(dev, &dev_attr_stereo_orientation);
error |= device_create_file(dev, &dev_attr_stereo_mode);
}
if(sd_settings) {
error |= nvsd_create_sysfs(dev);
}
if(error) {
printk("Failed to create sysfs attributes!\n");
}
}
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