diff options
| -rw-r--r-- | drivers/video/mxc_hdmi.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/drivers/video/mxc_hdmi.c b/drivers/video/mxc_hdmi.c index c9b1a835a97..7e3c8af7838 100644 --- a/drivers/video/mxc_hdmi.c +++ b/drivers/video/mxc_hdmi.c @@ -182,6 +182,52 @@ static void dump_fb_videomode(struct fb_videomode *m) {} #endif +static ssize_t mxc_hdmi_show_name(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct mxc_hdmi *hdmi = dev_get_drvdata(dev); + + strcpy(buf, hdmi->fbi->fix.id); + sprintf(buf+strlen(buf), "\n"); + + return strlen(buf); +} + +static DEVICE_ATTR(fb_name, S_IRUGO, mxc_hdmi_show_name, NULL); + +static ssize_t mxc_hdmi_show_state(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct mxc_hdmi *hdmi = dev_get_drvdata(dev); + + if (hdmi->cable_plugin == false) + strcpy(buf, "plugout\n"); + else + strcpy(buf, "plugin\n"); + + return strlen(buf); +} + +static DEVICE_ATTR(cable_state, S_IRUGO, mxc_hdmi_show_state, NULL); + +static ssize_t mxc_hdmi_show_edid(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct mxc_hdmi *hdmi = dev_get_drvdata(dev); + int i, j, len = 0; + + for (j = 0; j < HDMI_EDID_LEN/16; j++) { + for (i = 0; i < 16; i++) + len += sprintf(buf+len, "0x%02X ", + hdmi->edid[j*16 + i]); + len += sprintf(buf+len, "\n"); + } + + return len; +} + +static DEVICE_ATTR(edid, S_IRUGO, mxc_hdmi_show_edid, NULL); + /*! * this submodule is responsible for the video data synchronization. * for example, for RGB 4:4:4 input, the data map is defined as @@ -1610,6 +1656,8 @@ static void hotplug_worker(struct work_struct *work) bool hdmi_disable = false; int irq = platform_get_irq(hdmi->pdev, 0); unsigned long flags; + char event_string[16]; + char *envp[] = { event_string, NULL }; if (!hdmi->irq_enabled) { /* Enable clock long enough to do a few register accesses */ @@ -1660,6 +1708,10 @@ static void hotplug_worker(struct work_struct *work) val = hdmi_readb(HDMI_PHY_POL0); val &= ~HDMI_PHY_HPD; hdmi_writeb(val, HDMI_PHY_POL0); + + sprintf(event_string, "EVENT=plugin"); + kobject_uevent_env(&hdmi->pdev->dev.kobj, KOBJ_CHANGE, envp); + } else if (!(phy_int_pol & HDMI_PHY_HPD)) { /* * Plugout event = assume that iahb clock was enabled. @@ -1672,6 +1724,10 @@ static void hotplug_worker(struct work_struct *work) val = hdmi_readb(HDMI_PHY_POL0); val |= HDMI_PHY_HPD; hdmi_writeb(val, HDMI_PHY_POL0); + + sprintf(event_string, "EVENT=plugout"); + kobject_uevent_env(&hdmi->pdev->dev.kobj, KOBJ_CHANGE, envp); + } else dev_dbg(&hdmi->pdev->dev, "EVENT=none?\n"); } @@ -2075,6 +2131,19 @@ static int mxc_hdmi_disp_init(struct mxc_dispdrv_handle *disp, goto ereqirq; } + ret = device_create_file(&hdmi->pdev->dev, &dev_attr_fb_name); + if (ret < 0) + dev_warn(&hdmi->pdev->dev, + "cound not create sys node for fb name\n"); + ret = device_create_file(&hdmi->pdev->dev, &dev_attr_cable_state); + if (ret < 0) + dev_warn(&hdmi->pdev->dev, + "cound not create sys node for cable state\n"); + ret = device_create_file(&hdmi->pdev->dev, &dev_attr_edid); + if (ret < 0) + dev_warn(&hdmi->pdev->dev, + "cound not create sys node for edid\n"); + dev_dbg(&hdmi->pdev->dev, "%s exit\n", __func__); return ret; |