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Commit 7ea6e6e4 authored by Vincent Abriou's avatar Vincent Abriou
Browse files

drm/sti: add debugfs entries for HDMI connector 



Signed-off-by: default avatarVincent Abriou <vincent.abriou@st.com>
Reviewed-by: default avatarBenjamin Gaignard <benjamin.gaignard@linaro.org>
parent ffc4a6a1

drivers/gpu/drm/sti/sti_hdmi.c

+174 −1
Original line number Diff line number Diff line
@@ -6,6 +6,7 @@ 


#include <linux/clk.h>

#include <linux/component.h>

#include <linux/debugfs.h>

#include <linux/hdmi.h>

#include <linux/module.h>

#include <linux/of_gpio.h>
@@ -550,6 +551,172 @@ static void hdmi_swreset(struct sti_hdmi *hdmi) 
	clk_disable_unprepare(hdmi->clk_audio);

}



#define DBGFS_PRINT_STR(str1, str2) seq_printf(s, "%-24s %s\n", str1, str2)

#define DBGFS_PRINT_INT(str1, int2) seq_printf(s, "%-24s %d\n", str1, int2)

#define DBGFS_DUMP(str, reg) seq_printf(s, "%s  %-25s 0x%08X", str, #reg, \

					hdmi_read(hdmi, reg))

#define DBGFS_DUMP_DI(reg, slot) DBGFS_DUMP("\n", reg(slot))



static void hdmi_dbg_cfg(struct seq_file *s, int val)

{

	int tmp;



	seq_puts(s, "\t");

	tmp = val & HDMI_CFG_HDMI_NOT_DVI;

	DBGFS_PRINT_STR("mode:", tmp ? "HDMI" : "DVI");

	seq_puts(s, "\t\t\t\t\t");

	tmp = val & HDMI_CFG_HDCP_EN;

	DBGFS_PRINT_STR("HDCP:", tmp ? "enable" : "disable");

	seq_puts(s, "\t\t\t\t\t");

	tmp = val & HDMI_CFG_ESS_NOT_OESS;

	DBGFS_PRINT_STR("HDCP mode:", tmp ? "ESS enable" : "OESS enable");

	seq_puts(s, "\t\t\t\t\t");

	tmp = val & HDMI_CFG_SINK_TERM_DET_EN;

	DBGFS_PRINT_STR("Sink term detection:", tmp ? "enable" : "disable");

	seq_puts(s, "\t\t\t\t\t");

	tmp = val & HDMI_CFG_H_SYNC_POL_NEG;

	DBGFS_PRINT_STR("Hsync polarity:", tmp ? "inverted" : "normal");

	seq_puts(s, "\t\t\t\t\t");

	tmp = val & HDMI_CFG_V_SYNC_POL_NEG;

	DBGFS_PRINT_STR("Vsync polarity:", tmp ? "inverted" : "normal");

	seq_puts(s, "\t\t\t\t\t");

	tmp = val & HDMI_CFG_422_EN;

	DBGFS_PRINT_STR("YUV422 format:", tmp ? "enable" : "disable");

}



static void hdmi_dbg_sta(struct seq_file *s, int val)

{

	int tmp;



	seq_puts(s, "\t");

	tmp = (val & HDMI_STA_DLL_LCK);

	DBGFS_PRINT_STR("pll:", tmp ? "locked" : "not locked");

	seq_puts(s, "\t\t\t\t\t");

	tmp = (val & HDMI_STA_HOT_PLUG);

	DBGFS_PRINT_STR("hdmi cable:", tmp ? "connected" : "not connected");

}



static void hdmi_dbg_sw_di_cfg(struct seq_file *s, int val)

{

	int tmp;

	char *const en_di[] = {"no transmission",

			       "single transmission",

			       "once every field",

			       "once every frame"};



	seq_puts(s, "\t");

	tmp = (val & HDMI_IFRAME_CFG_DI_N(HDMI_IFRAME_MASK, 1));

	DBGFS_PRINT_STR("Data island 1:", en_di[tmp]);

	seq_puts(s, "\t\t\t\t\t");

	tmp = (val & HDMI_IFRAME_CFG_DI_N(HDMI_IFRAME_MASK, 2)) >> 4;

	DBGFS_PRINT_STR("Data island 2:", en_di[tmp]);

	seq_puts(s, "\t\t\t\t\t");

	tmp = (val & HDMI_IFRAME_CFG_DI_N(HDMI_IFRAME_MASK, 3)) >> 8;

	DBGFS_PRINT_STR("Data island 3:", en_di[tmp]);

	seq_puts(s, "\t\t\t\t\t");

	tmp = (val & HDMI_IFRAME_CFG_DI_N(HDMI_IFRAME_MASK, 4)) >> 12;

	DBGFS_PRINT_STR("Data island 4:", en_di[tmp]);

	seq_puts(s, "\t\t\t\t\t");

	tmp = (val & HDMI_IFRAME_CFG_DI_N(HDMI_IFRAME_MASK, 5)) >> 16;

	DBGFS_PRINT_STR("Data island 5:", en_di[tmp]);

	seq_puts(s, "\t\t\t\t\t");

	tmp = (val & HDMI_IFRAME_CFG_DI_N(HDMI_IFRAME_MASK, 6)) >> 20;

	DBGFS_PRINT_STR("Data island 6:", en_di[tmp]);

}



static int hdmi_dbg_show(struct seq_file *s, void *data)

{

	struct drm_info_node *node = s->private;

	struct sti_hdmi *hdmi = (struct sti_hdmi *)node->info_ent->data;

	struct drm_device *dev = node->minor->dev;

	int ret;



	ret = mutex_lock_interruptible(&dev->struct_mutex);

	if (ret)

		return ret;



	seq_printf(s, "HDMI: (vaddr = 0x%p)", hdmi->regs);

	DBGFS_DUMP("\n", HDMI_CFG);

	hdmi_dbg_cfg(s, hdmi_read(hdmi, HDMI_CFG));

	DBGFS_DUMP("", HDMI_INT_EN);

	DBGFS_DUMP("\n", HDMI_STA);

	hdmi_dbg_sta(s, hdmi_read(hdmi, HDMI_STA));

	DBGFS_DUMP("", HDMI_ACTIVE_VID_XMIN);

	seq_puts(s, "\t");

	DBGFS_PRINT_INT("Xmin:", hdmi_read(hdmi, HDMI_ACTIVE_VID_XMIN));

	DBGFS_DUMP("", HDMI_ACTIVE_VID_XMAX);

	seq_puts(s, "\t");

	DBGFS_PRINT_INT("Xmax:", hdmi_read(hdmi, HDMI_ACTIVE_VID_XMAX));

	DBGFS_DUMP("", HDMI_ACTIVE_VID_YMIN);

	seq_puts(s, "\t");

	DBGFS_PRINT_INT("Ymin:", hdmi_read(hdmi, HDMI_ACTIVE_VID_YMIN));

	DBGFS_DUMP("", HDMI_ACTIVE_VID_YMAX);

	seq_puts(s, "\t");

	DBGFS_PRINT_INT("Ymax:", hdmi_read(hdmi, HDMI_ACTIVE_VID_YMAX));

	DBGFS_DUMP("", HDMI_SW_DI_CFG);

	hdmi_dbg_sw_di_cfg(s, hdmi_read(hdmi, HDMI_SW_DI_CFG));



	seq_printf(s, "\n AVI Infoframe (Data Island slot N=%d):",

		   HDMI_IFRAME_SLOT_AVI);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_HEAD_WORD, HDMI_IFRAME_SLOT_AVI);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD0, HDMI_IFRAME_SLOT_AVI);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD1, HDMI_IFRAME_SLOT_AVI);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD2, HDMI_IFRAME_SLOT_AVI);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD3, HDMI_IFRAME_SLOT_AVI);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD4, HDMI_IFRAME_SLOT_AVI);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD5, HDMI_IFRAME_SLOT_AVI);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD6, HDMI_IFRAME_SLOT_AVI);

	seq_puts(s, "\n");

	seq_printf(s, "\n AUDIO Infoframe (Data Island slot N=%d):",

		   HDMI_IFRAME_SLOT_AUDIO);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_HEAD_WORD, HDMI_IFRAME_SLOT_AUDIO);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD0, HDMI_IFRAME_SLOT_AUDIO);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD1, HDMI_IFRAME_SLOT_AUDIO);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD2, HDMI_IFRAME_SLOT_AUDIO);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD3, HDMI_IFRAME_SLOT_AUDIO);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD4, HDMI_IFRAME_SLOT_AUDIO);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD5, HDMI_IFRAME_SLOT_AUDIO);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD6, HDMI_IFRAME_SLOT_AUDIO);

	seq_puts(s, "\n");

	seq_printf(s, "\n VENDOR SPECIFIC Infoframe (Data Island slot N=%d):",

		   HDMI_IFRAME_SLOT_VENDOR);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_HEAD_WORD, HDMI_IFRAME_SLOT_VENDOR);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD0, HDMI_IFRAME_SLOT_VENDOR);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD1, HDMI_IFRAME_SLOT_VENDOR);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD2, HDMI_IFRAME_SLOT_VENDOR);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD3, HDMI_IFRAME_SLOT_VENDOR);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD4, HDMI_IFRAME_SLOT_VENDOR);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD5, HDMI_IFRAME_SLOT_VENDOR);

	DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD6, HDMI_IFRAME_SLOT_VENDOR);

	seq_puts(s, "\n");



	mutex_unlock(&dev->struct_mutex);

	return 0;

}



static struct drm_info_list hdmi_debugfs_files[] = {

	{ "hdmi", hdmi_dbg_show, 0, NULL },

};



static void hdmi_debugfs_exit(struct sti_hdmi *hdmi, struct drm_minor *minor)

{

	drm_debugfs_remove_files(hdmi_debugfs_files,

				 ARRAY_SIZE(hdmi_debugfs_files),

				 minor);

}



static int hdmi_debugfs_init(struct sti_hdmi *hdmi, struct drm_minor *minor)

{

	unsigned int i;



	for (i = 0; i < ARRAY_SIZE(hdmi_debugfs_files); i++)

		hdmi_debugfs_files[i].data = hdmi;



	return drm_debugfs_create_files(hdmi_debugfs_files,

					ARRAY_SIZE(hdmi_debugfs_files),

					minor->debugfs_root, minor);

}



static void sti_hdmi_disable(struct drm_bridge *bridge)

{

	struct sti_hdmi *hdmi = bridge->driver_private;
@@ -941,6 +1108,9 @@ static int sti_hdmi_bind(struct device *dev, struct device *master, void *data) 
	/* Enable default interrupts */

	hdmi_write(hdmi, HDMI_DEFAULT_INT, HDMI_INT_EN);



	if (hdmi_debugfs_init(hdmi, drm_dev->primary))

		DRM_ERROR("HDMI debugfs setup failed\n");



	return 0;



err_sysfs:
@@ -954,7 +1124,10 @@ static int sti_hdmi_bind(struct device *dev, struct device *master, void *data) 
static void sti_hdmi_unbind(struct device *dev,

		struct device *master, void *data)

{

	/* do nothing */

	struct sti_hdmi *hdmi = dev_get_drvdata(dev);

	struct drm_device *drm_dev = data;



	hdmi_debugfs_exit(hdmi, drm_dev->primary);

}



static const struct component_ops sti_hdmi_ops = {

drivers/gpu/drm/sti/sti_hdmi.h

+1 −3
Original line number Diff line number Diff line
@@ -14,9 +14,7 @@ 


#define HDMI_STA           0x0010

#define HDMI_STA_DLL_LCK   BIT(5)



#define HDMI_STA_HOT_PLUG_SHIFT 4

#define HDMI_STA_HOT_PLUG	(1 << HDMI_STA_HOT_PLUG_SHIFT)

#define HDMI_STA_HOT_PLUG  BIT(4)



struct sti_hdmi;