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drm/sti: add debugfs entries for TVOUT encoders

Browse source 
Signed-off-by: Vincent Abriou <vincent.abriou@st.com>
Reviewed-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
This commit is contained in:
Vincent Abriou 2016-02-05 11:14:48 +01:00
parent a5f81078a5
commit b514bee765
1 changed files with 157 additions and 0 deletions
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157
drivers/gpu/drm/sti/sti_tvout.c
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@ -462,6 +462,157 @@ static void tvout_hda_start(struct sti_tvout *tvout, bool main_path)
tvout_write(tvout, 0, TVO_HD_DAC_CFG_OFF);
}
#define DBGFS_DUMP(reg) seq_printf(s, "\n %-25s 0x%08X", #reg, \
readl(tvout->regs + reg))
static void tvout_dbg_vip(struct seq_file *s, int val)
{
int r, g, b, tmp, mask;
char *const reorder[] = {"Y_G", "Cb_B", "Cr_R"};
char *const clipping[] = {"No", "EAV/SAV", "Limited range RGB/Y",
"Limited range Cb/Cr", "decided by register"};
char *const round[] = {"8-bit", "10-bit", "12-bit"};
char *const input_sel[] = {"Main (color matrix enabled)",
"Main (color matrix by-passed)",
"", "", "", "", "", "",
"Aux (color matrix enabled)",
"Aux (color matrix by-passed)",
"", "", "", "", "", "Force value"};
seq_puts(s, "\t");
mask = TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_R_SHIFT;
r = (val & mask) >> TVO_VIP_REORDER_R_SHIFT;
mask = TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_G_SHIFT;
g = (val & mask) >> TVO_VIP_REORDER_G_SHIFT;
mask = TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_B_SHIFT;
b = (val & mask) >> TVO_VIP_REORDER_B_SHIFT;
seq_printf(s, "%-24s %s->%s %s->%s %s->%s\n", "Reorder:",
reorder[r], reorder[TVO_VIP_REORDER_CR_R_SEL],
reorder[g], reorder[TVO_VIP_REORDER_Y_G_SEL],
reorder[b], reorder[TVO_VIP_REORDER_CB_B_SEL]);
seq_puts(s, "\t\t\t\t\t");
mask = TVO_VIP_CLIP_MASK << TVO_VIP_CLIP_SHIFT;
tmp = (val & mask) >> TVO_VIP_CLIP_SHIFT;
seq_printf(s, "%-24s %s\n", "Clipping:", clipping[tmp]);
seq_puts(s, "\t\t\t\t\t");
mask = TVO_VIP_RND_MASK << TVO_VIP_RND_SHIFT;
tmp = (val & mask) >> TVO_VIP_RND_SHIFT;
seq_printf(s, "%-24s input data rounded to %s per component\n",
"Round:", round[tmp]);
seq_puts(s, "\t\t\t\t\t");
tmp = (val & TVO_VIP_SEL_INPUT_MASK);
seq_printf(s, "%-24s %s", "Input selection:", input_sel[tmp]);
}
static void tvout_dbg_hd_dac_cfg(struct seq_file *s, int val)
{
seq_printf(s, "\t%-24s %s", "HD DAC:",
val & 1 ? "disabled" : "enabled");
}
static int tvout_dbg_show(struct seq_file *s, void *data)
{
struct drm_info_node *node = s->private;
struct sti_tvout *tvout = (struct sti_tvout *)node->info_ent->data;
struct drm_device *dev = node->minor->dev;
struct drm_crtc *crtc;
int ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
seq_printf(s, "TVOUT: (vaddr = 0x%p)", tvout->regs);
seq_puts(s, "\n\n HDMI encoder: ");
crtc = tvout->hdmi->crtc;
if (crtc) {
seq_printf(s, "connected to %s path",
sti_crtc_is_main(crtc) ? "main" : "aux");
DBGFS_DUMP(TVO_HDMI_SYNC_SEL);
DBGFS_DUMP(TVO_VIP_HDMI);
tvout_dbg_vip(s, readl(tvout->regs + TVO_VIP_HDMI));
} else {
seq_puts(s, "disabled");
}
seq_puts(s, "\n\n DVO encoder: ");
crtc = tvout->dvo->crtc;
if (crtc) {
seq_printf(s, "connected to %s path",
sti_crtc_is_main(crtc) ? "main" : "aux");
DBGFS_DUMP(TVO_DVO_SYNC_SEL);
DBGFS_DUMP(TVO_DVO_CONFIG);
DBGFS_DUMP(TVO_VIP_DVO);
tvout_dbg_vip(s, readl(tvout->regs + TVO_VIP_DVO));
} else {
seq_puts(s, "disabled");
}
seq_puts(s, "\n\n HDA encoder: ");
crtc = tvout->hda->crtc;
if (crtc) {
seq_printf(s, "connected to %s path",
sti_crtc_is_main(crtc) ? "main" : "aux");
DBGFS_DUMP(TVO_HD_SYNC_SEL);
DBGFS_DUMP(TVO_HD_DAC_CFG_OFF);
tvout_dbg_hd_dac_cfg(s,
readl(tvout->regs + TVO_HD_DAC_CFG_OFF));
DBGFS_DUMP(TVO_VIP_HDF);
tvout_dbg_vip(s, readl(tvout->regs + TVO_VIP_HDF));
} else {
seq_puts(s, "disabled");
}
seq_puts(s, "\n\n main path configuration");
DBGFS_DUMP(TVO_CSC_MAIN_M0);
DBGFS_DUMP(TVO_CSC_MAIN_M1);
DBGFS_DUMP(TVO_CSC_MAIN_M2);
DBGFS_DUMP(TVO_CSC_MAIN_M3);
DBGFS_DUMP(TVO_CSC_MAIN_M4);
DBGFS_DUMP(TVO_CSC_MAIN_M5);
DBGFS_DUMP(TVO_CSC_MAIN_M6);
DBGFS_DUMP(TVO_CSC_MAIN_M7);
DBGFS_DUMP(TVO_MAIN_IN_VID_FORMAT);
seq_puts(s, "\n\n auxiliary path configuration");
DBGFS_DUMP(TVO_CSC_AUX_M0);
DBGFS_DUMP(TVO_CSC_AUX_M2);
DBGFS_DUMP(TVO_CSC_AUX_M3);
DBGFS_DUMP(TVO_CSC_AUX_M4);
DBGFS_DUMP(TVO_CSC_AUX_M5);
DBGFS_DUMP(TVO_CSC_AUX_M6);
DBGFS_DUMP(TVO_CSC_AUX_M7);
DBGFS_DUMP(TVO_AUX_IN_VID_FORMAT);
seq_puts(s, "\n");
mutex_unlock(&dev->struct_mutex);
return 0;
}
static struct drm_info_list tvout_debugfs_files[] = {
{ "tvout", tvout_dbg_show, 0, NULL },
};
static void tvout_debugfs_exit(struct sti_tvout *tvout, struct drm_minor *minor)
{
drm_debugfs_remove_files(tvout_debugfs_files,
ARRAY_SIZE(tvout_debugfs_files),
minor);
}
static int tvout_debugfs_init(struct sti_tvout *tvout, struct drm_minor *minor)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(tvout_debugfs_files); i++)
tvout_debugfs_files[i].data = tvout;
return drm_debugfs_create_files(tvout_debugfs_files,
ARRAY_SIZE(tvout_debugfs_files),
minor->debugfs_root, minor);
}
static void sti_tvout_encoder_dpms(struct drm_encoder *encoder, int mode)
{
}
@ -668,6 +819,9 @@ static int sti_tvout_bind(struct device *dev, struct device *master, void *data)
sti_tvout_create_encoders(drm_dev, tvout);
if (tvout_debugfs_init(tvout, drm_dev->primary))
DRM_ERROR("TVOUT debugfs setup failed\n");
return 0;
}
@ -675,8 +829,11 @@ static void sti_tvout_unbind(struct device *dev, struct device *master,
void *data)
{
struct sti_tvout *tvout = dev_get_drvdata(dev);
struct drm_device *drm_dev = data;
sti_tvout_destroy_encoders(tvout);
tvout_debugfs_exit(tvout, drm_dev->primary);
}
static const struct component_ops sti_tvout_ops = {