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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);
/********
* 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(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(sd_settings) {
error |= nvsd_create_sysfs(dev);
}
if(error) {
printk("Failed to create sysfs attributes!\n");
}
}
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