mirror of https://gitee.com/openkylin/linux.git
drm/msm/dp: add debugfs nodes for video pattern tests
Add the debugfs nodes needed for the video pattern compliance tests to MSM DP driver. Changes in v2: rebase on top of latest patchset of dependency Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org> Signed-off-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
Abhinav Kumar
Rob Clark
parent
f913454aae
commit
de3ee25473
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@ -203,17 +203,174 @@ static ssize_t dp_debug_read_info(struct file *file, char __user *user_buff,
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return -EINVAL;
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}
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static int dp_test_data_show(struct seq_file *m, void *data)
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{
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struct drm_device *dev;
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struct dp_debug_private *debug;
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struct drm_connector *connector;
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struct drm_connector_list_iter conn_iter;
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u32 bpc;
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debug = m->private;
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dev = debug->drm_dev;
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drm_connector_list_iter_begin(dev, &conn_iter);
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drm_for_each_connector_iter(connector, &conn_iter) {
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if (connector->connector_type !=
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DRM_MODE_CONNECTOR_DisplayPort)
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continue;
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if (connector->status == connector_status_connected) {
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bpc = debug->link->test_video.test_bit_depth;
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seq_printf(m, "hdisplay: %d\n",
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debug->link->test_video.test_h_width);
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seq_printf(m, "vdisplay: %d\n",
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debug->link->test_video.test_v_height);
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seq_printf(m, "bpc: %u\n",
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dp_link_bit_depth_to_bpc(bpc));
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} else
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seq_puts(m, "0");
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}
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drm_connector_list_iter_end(&conn_iter);
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return 0;
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}
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DEFINE_SHOW_ATTRIBUTE(dp_test_data);
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static int dp_test_type_show(struct seq_file *m, void *data)
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{
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struct dp_debug_private *debug = m->private;
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struct drm_device *dev = debug->drm_dev;
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struct drm_connector *connector;
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struct drm_connector_list_iter conn_iter;
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drm_connector_list_iter_begin(dev, &conn_iter);
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drm_for_each_connector_iter(connector, &conn_iter) {
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if (connector->connector_type !=
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DRM_MODE_CONNECTOR_DisplayPort)
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continue;
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if (connector->status == connector_status_connected)
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seq_printf(m, "%02x", DP_TEST_LINK_VIDEO_PATTERN);
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else
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seq_puts(m, "0");
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}
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drm_connector_list_iter_end(&conn_iter);
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return 0;
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}
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DEFINE_SHOW_ATTRIBUTE(dp_test_type);
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static ssize_t dp_test_active_write(struct file *file,
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const char __user *ubuf,
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size_t len, loff_t *offp)
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{
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char *input_buffer;
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int status = 0;
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struct dp_debug_private *debug;
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struct drm_device *dev;
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struct drm_connector *connector;
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struct drm_connector_list_iter conn_iter;
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int val = 0;
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debug = ((struct seq_file *)file->private_data)->private;
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dev = debug->drm_dev;
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if (len == 0)
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return 0;
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input_buffer = memdup_user_nul(ubuf, len);
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if (IS_ERR(input_buffer))
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return PTR_ERR(input_buffer);
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DRM_DEBUG_DRIVER("Copied %d bytes from user\n", (unsigned int)len);
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drm_connector_list_iter_begin(dev, &conn_iter);
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drm_for_each_connector_iter(connector, &conn_iter) {
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if (connector->connector_type !=
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DRM_MODE_CONNECTOR_DisplayPort)
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continue;
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if (connector->status == connector_status_connected) {
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status = kstrtoint(input_buffer, 10, &val);
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if (status < 0)
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break;
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DRM_DEBUG_DRIVER("Got %d for test active\n", val);
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/* To prevent erroneous activation of the compliance
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* testing code, only accept an actual value of 1 here
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*/
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if (val == 1)
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debug->panel->video_test = true;
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else
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debug->panel->video_test = false;
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}
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}
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drm_connector_list_iter_end(&conn_iter);
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kfree(input_buffer);
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if (status < 0)
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return status;
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*offp += len;
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return len;
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}
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static int dp_test_active_show(struct seq_file *m, void *data)
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{
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struct dp_debug_private *debug = m->private;
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struct drm_device *dev = debug->drm_dev;
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struct drm_connector *connector;
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struct drm_connector_list_iter conn_iter;
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drm_connector_list_iter_begin(dev, &conn_iter);
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drm_for_each_connector_iter(connector, &conn_iter) {
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if (connector->connector_type !=
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DRM_MODE_CONNECTOR_DisplayPort)
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continue;
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if (connector->status == connector_status_connected) {
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if (debug->panel->video_test)
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seq_puts(m, "1");
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else
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seq_puts(m, "0");
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} else
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seq_puts(m, "0");
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}
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drm_connector_list_iter_end(&conn_iter);
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return 0;
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}
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static int dp_test_active_open(struct inode *inode,
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struct file *file)
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{
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return single_open(file, dp_test_active_show,
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inode->i_private);
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}
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static const struct file_operations dp_debug_fops = {
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.open = simple_open,
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.read = dp_debug_read_info,
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};
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static const struct file_operations test_active_fops = {
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.owner = THIS_MODULE,
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.open = dp_test_active_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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.write = dp_test_active_write
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};
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static int dp_debug_init(struct dp_debug *dp_debug, struct drm_minor *minor)
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{
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int rc = 0;
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struct dp_debug_private *debug = container_of(dp_debug,
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struct dp_debug_private, dp_debug);
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struct dentry *file;
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struct dentry *test_active;
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struct dentry *test_data, *test_type;
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file = debugfs_create_file("dp_debug", 0444, minor->debugfs_root,
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debug, &dp_debug_fops);
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@ -223,6 +380,33 @@ static int dp_debug_init(struct dp_debug *dp_debug, struct drm_minor *minor)
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DEBUG_NAME, rc);
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}
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test_active = debugfs_create_file("msm_dp_test_active", 0444,
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minor->debugfs_root,
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debug, &test_active_fops);
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if (IS_ERR_OR_NULL(test_active)) {
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rc = PTR_ERR(test_active);
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DRM_ERROR("[%s] debugfs test_active failed, rc=%d\n",
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DEBUG_NAME, rc);
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}
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test_data = debugfs_create_file("msm_dp_test_data", 0444,
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minor->debugfs_root,
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debug, &dp_test_data_fops);
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if (IS_ERR_OR_NULL(test_data)) {
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rc = PTR_ERR(test_data);
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DRM_ERROR("[%s] debugfs test_data failed, rc=%d\n",
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DEBUG_NAME, rc);
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}
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test_type = debugfs_create_file("msm_dp_test_type", 0444,
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minor->debugfs_root,
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debug, &dp_test_type_fops);
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if (IS_ERR_OR_NULL(test_type)) {
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rc = PTR_ERR(test_type);
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DRM_ERROR("[%s] debugfs test_type failed, rc=%d\n",
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DEBUG_NAME, rc);
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}
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debug->root = minor->debugfs_root;
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return rc;
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@ -112,6 +112,29 @@ static inline u32 dp_link_bit_depth_to_bpp(u32 tbd)
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}
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}
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/**
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* dp_test_bit_depth_to_bpc() - convert test bit depth to bpc
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* @tbd: test bit depth
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*
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* Returns the bits per comp (bpc) to be used corresponding to the
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* bit depth value. This function assumes that bit depth has
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* already been validated.
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*/
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static inline u32 dp_link_bit_depth_to_bpc(u32 tbd)
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{
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switch (tbd) {
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case DP_TEST_BIT_DEPTH_6:
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return 6;
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case DP_TEST_BIT_DEPTH_8:
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return 8;
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case DP_TEST_BIT_DEPTH_10:
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return 10;
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case DP_TEST_BIT_DEPTH_UNKNOWN:
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default:
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return 0;
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}
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}
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u32 dp_link_get_test_bits_depth(struct dp_link *dp_link, u32 bpp);
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int dp_link_process_request(struct dp_link *dp_link);
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int dp_link_get_colorimetry_config(struct dp_link *dp_link);
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