Add the following sysfs attributes to the writeback panel driver:
- paddr
- p_uv_addr
- rotation_type
- color_mode
- pre_mult_alpha
- capture_rate
Signed-off-by: Archit Taneja <archit@xxxxxx>
---
drivers/video/omap2/dss/writeback.c | 210 +++++++++++++++++++++++++++++++++++
1 files changed, 210 insertions(+), 0 deletions(-)
diff --git a/drivers/video/omap2/dss/writeback.c b/drivers/video/omap2/dss/writeback.c
index 215958e..c6450e7 100644
--- a/drivers/video/omap2/dss/writeback.c
+++ b/drivers/video/omap2/dss/writeback.c
@@ -214,8 +214,218 @@ int dss_wb_simple_check(struct omap_dss_writeback *wb,
/* Dummy Writeback Panel driver */
+static ssize_t writeback_panel_paddr_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct omap_dss_writeback_info info;
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ struct omap_dss_writeback *wb = dssdev->wbdev;
+
+ wb->get_wb_info(wb, &info);
+
+ return snprintf(buf, PAGE_SIZE, "%x\n", info.paddr);
+}
+
+static ssize_t writeback_panel_p_uv_addr_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct omap_dss_writeback_info info;
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ struct omap_dss_writeback *wb = dssdev->wbdev;
+
+ wb->get_wb_info(wb, &info);
+
+ return snprintf(buf, PAGE_SIZE, "%x\n", info.p_uv_addr);
+}
+
+static ssize_t writeback_panel_rotation_type_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct omap_dss_writeback_info info;
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ struct omap_dss_writeback *wb = dssdev->wbdev;
+
+ wb->get_wb_info(wb, &info);
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", info.rotation_type);
+}
+
+static ssize_t writeback_panel_color_mode_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct omap_dss_writeback_info info;
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ struct omap_dss_writeback *wb = dssdev->wbdev;
+
+ wb->get_wb_info(wb, &info);
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", info.color_mode);
+}
+
+static ssize_t writeback_panel_color_mode_store(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t size)
+{
+ int r;
+ int color_mode;
+ struct omap_dss_writeback_info info;
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ struct omap_dss_writeback *wb = dssdev->wbdev;
+
+ r = kstrtoint(buf, 0, &color_mode);
+ if (r)
+ return r;
+
+ wb->get_wb_info(wb, &info);
+
+ info.color_mode = color_mode;
+
+ r = wb->set_wb_info(wb, &info);
+ if (r) {
+ dev_err(&dssdev->dev, "failed to set color mode %d\n",
+ color_mode);
+ return r;
+ }
+
+ if (dssdev->manager) {
+ r = dssdev->manager->apply(dssdev->manager);
+ if (r)
+ return r;
+ }
+
+ return size;
+}
+
+static ssize_t writeback_panel_pre_mult_alpha_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct omap_dss_writeback_info info;
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ struct omap_dss_writeback *wb = dssdev->wbdev;
+
+ wb->get_wb_info(wb, &info);
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", info.pre_mult_alpha);
+}
+
+static ssize_t writeback_panel_pre_mult_alpha_store(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t size)
+{
+ int r;
+ u8 pre_mult_alpha;
+ struct omap_dss_writeback_info info;
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ struct omap_dss_writeback *wb = dssdev->wbdev;
+
+ r = kstrtou8(buf, 0, &pre_mult_alpha);
+ if (r)
+ return r;
+
+ wb->get_wb_info(wb, &info);
+
+ info.pre_mult_alpha = pre_mult_alpha;
+
+ r = wb->set_wb_info(wb, &info);
+ if (r) {
+ dev_err(&dssdev->dev, "failed to set pre_mult_alpha %d\n",
+ pre_mult_alpha);
+ return r;
+ }
+
+ if (dssdev->manager) {
+ r = dssdev->manager->apply(dssdev->manager);
+ if (r)
+ return r;
+ }
+
+ return size;
+}
+
+static ssize_t writeback_panel_capture_rate_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct omap_dss_writeback_info info;
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ struct omap_dss_writeback *wb = dssdev->wbdev;
+
+ wb->get_wb_info(wb, &info);
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", info.capture_rate);
+}
+
+static ssize_t writeback_panel_capture_rate_store(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t size)
+{
+ int r;
+ int capture_rate;
+ struct omap_dss_writeback_info info;
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ struct omap_dss_writeback *wb = dssdev->wbdev;
+
+ r = kstrtoint(buf, 0, &capture_rate);
+ if (r)
+ return r;
+
+ wb->get_wb_info(wb, &info);
+
+ info.capture_rate = capture_rate;
+
+ r = wb->set_wb_info(wb, &info);
+ if (r) {
+ dev_err(&dssdev->dev, "failed to set capture_rate %d\n",
+ capture_rate);
+ return r;
+ }
+
+ if (dssdev->manager) {
+ r = dssdev->manager->apply(dssdev->manager);
+ if (r)
+ return r;
+ }
+
+ return size;
+}
+
+static DEVICE_ATTR(paddr, S_IRUGO, writeback_panel_paddr_show, NULL);
+static DEVICE_ATTR(p_uv_addr, S_IRUGO, writeback_panel_p_uv_addr_show, NULL);
+static DEVICE_ATTR(rotation_type, S_IRUGO, writeback_panel_rotation_type_show,
+ NULL);
+static DEVICE_ATTR(color_mode, S_IRUGO | S_IWUSR,
+ writeback_panel_color_mode_show,
+ writeback_panel_color_mode_store);
+static DEVICE_ATTR(pre_mult_alpha, S_IRUGO | S_IWUSR,
+ writeback_panel_pre_mult_alpha_show,
+ writeback_panel_pre_mult_alpha_store);
+static DEVICE_ATTR(capture_rate, S_IRUGO | S_IWUSR,
+ writeback_panel_capture_rate_show,
+ writeback_panel_capture_rate_store);
+
+static struct attribute *writeback_attrs[] = {
+ &dev_attr_paddr.attr,
+ &dev_attr_p_uv_addr.attr,
+ &dev_attr_rotation_type.attr,
+ &dev_attr_color_mode.attr,
+ &dev_attr_pre_mult_alpha.attr,
+ &dev_attr_capture_rate.attr,
+ NULL,
+};
+
+static struct attribute_group writeback_attr_group = {
+ .attrs = writeback_attrs,
+};
+
static int writeback_panel_probe(struct omap_dss_device *dssdev)
{
+ int r;
+
+ r = sysfs_create_group(&dssdev->dev.kobj, &writeback_attr_group);
+ if (r) {
+ dev_err(&dssdev->dev, "failed to create sysfs files\n");
+ return r;
+ }
+
return 0;
}
--
1.7.4.1
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