Make mixer driver more verbose
Signed-off-by: Benjamin Gaignard benjamin.gaignard@linaro.org --- drivers/gpu/drm/sti/sti_mixer.c | 164 ++++++++++++++++++++++++++++++++++++++++ drivers/gpu/drm/sti/sti_mixer.h | 2 + 2 files changed, 166 insertions(+)
diff --git a/drivers/gpu/drm/sti/sti_mixer.c b/drivers/gpu/drm/sti/sti_mixer.c index b6c8214..73d5405 100644 --- a/drivers/gpu/drm/sti/sti_mixer.c +++ b/drivers/gpu/drm/sti/sti_mixer.c @@ -6,7 +6,9 @@ * License terms: GNU General Public License (GPL), version 2 */
+#include "sti_drm_drv.h" #include "sti_mixer.h" +#include "sti_compositor.h" #include "sti_vtg_utils.h"
/* Identity: G=Y , B=Cb , R=Cr */ @@ -139,6 +141,8 @@ int sti_mixer_set_layer_depth(struct sti_mixer *mixer, struct sti_layer *layer) mask = GAM_DEPTH_MASK_ID << (3 * depth); layer_id = layer_id << (3 * depth);
+ DRM_DEBUG_DRIVER("%s %s depth=%d\n", sti_mixer_to_str(mixer), + sti_layer_to_str(layer), depth); dev_dbg(mixer->dev, "GAM_MIXER_CRB val 0x%x mask 0x%x\n", layer_id, mask); sti_mixer_reg_writemask(mixer, GAM_MIXER_CRB, layer_id, mask); @@ -197,6 +201,9 @@ int sti_mixer_set_layer_status(struct sti_mixer *mixer, { u32 mask, val;
+ DRM_DEBUG_DRIVER("%s %s %s\n", status ? "enable" : "disable", + sti_mixer_to_str(mixer), sti_layer_to_str(layer)); + mask = sti_mixer_get_layer_mask(layer); if (!mask) { DRM_ERROR("Can not find layer mask\n"); @@ -239,3 +246,160 @@ struct sti_mixer *sti_mixer_create(struct device *dev, int id,
return mixer; } + +static void sti_mixer_dbg_ctl(struct seq_file *m, int val) +{ + int count = 0; + + seq_puts(m, "\tEnabled: "); + if (val & 1) { + seq_puts(m, "BKG "); + count++; + } + val = val >> 1; + + if (val & 1) { + seq_puts(m, "VID0 "); + count++; + } + val = val >> 1; + if (val & 1) { + seq_puts(m, "VID1 "); + count++; + } + val = val >> 1; + if (val & 1) { + seq_puts(m, "GDP0 "); + count++; + } + val = val >> 1; + if (val & 1) { + seq_puts(m, "GDP1 "); + count++; + } + val = val >> 1; + if (val & 1) { + seq_puts(m, "GDP2 "); + count++; + } + val = val >> 1; + if (val & 1) { + seq_puts(m, "GDP3 "); + count++; + } + if (!count) + seq_puts(m, "Nothing"); +} + +static void sti_mixer_dbg_crb(struct seq_file *m, int val) +{ + int i; + + seq_puts(m, "\tDepth: "); + for (i = 0; i < GAM_MIXER_NB_DEPTH_LEVEL; i++) { + switch (val & GAM_DEPTH_MASK_ID) { + case GAM_DEPTH_VID0_ID: + seq_puts(m, "VID0"); + break; + case GAM_DEPTH_VID1_ID: + seq_puts(m, "VID1"); + break; + case GAM_DEPTH_GDP0_ID: + seq_puts(m, "GDP0"); + break; + case GAM_DEPTH_GDP1_ID: + seq_puts(m, "GDP1"); + break; + case GAM_DEPTH_GDP2_ID: + seq_puts(m, "GDP2"); + break; + case GAM_DEPTH_GDP3_ID: + seq_puts(m, "GDP3"); + break; + default: + seq_puts(m, "---"); + } + if (i < GAM_MIXER_NB_DEPTH_LEVEL - 1) + seq_puts(m, " < "); + val = val >> 3; + } +} + +static void sti_mixer_dbg_mxn(struct seq_file *m, void *addr) +{ + int i; + + for (i = 1; i < 8; i++) + seq_printf(m, "-0x%08X", (int)readl(addr + i * 4)); +} + +#define MIXER_DBG_DUMP(reg) seq_printf(m, "\n " #reg "\t 0x%08X", \ + sti_mixer_reg_read(mixer, reg)) + +int sti_mixer_dbg_show(struct seq_file *m, void *arg) +{ + struct drm_info_node *node = (struct drm_info_node *)m->private; + struct drm_device *dev = node->minor->dev; + struct sti_drm_private *dev_priv = dev->dev_private; + struct sti_compositor *compo = dev_priv->compo; + int i, ret; + + ret = mutex_lock_interruptible(&dev->struct_mutex); + if (ret) + return ret; + + if (compo == NULL) { + seq_puts(m, "No compositor available\n"); + goto out; + } + + for (i = 0; i < compo->nb_mixers; i++) { + struct drm_crtc *crtc; + struct drm_framebuffer *fb; + struct sti_mixer *mixer = compo->mixer[i]; + + seq_printf(m, "\n%s", sti_mixer_to_str(mixer)); + MIXER_DBG_DUMP(GAM_MIXER_CTL); + sti_mixer_dbg_ctl(m, + sti_mixer_reg_read(mixer, + GAM_MIXER_CTL)); + MIXER_DBG_DUMP(GAM_MIXER_BKC); + MIXER_DBG_DUMP(GAM_MIXER_BCO); + MIXER_DBG_DUMP(GAM_MIXER_BCS); + MIXER_DBG_DUMP(GAM_MIXER_AVO); + MIXER_DBG_DUMP(GAM_MIXER_AVS); + MIXER_DBG_DUMP(GAM_MIXER_CRB); + sti_mixer_dbg_crb(m, + sti_mixer_reg_read(mixer, + GAM_MIXER_CRB)); + MIXER_DBG_DUMP(GAM_MIXER_ACT); + MIXER_DBG_DUMP(GAM_MIXER_MBP); + MIXER_DBG_DUMP(GAM_MIXER_MX0); + sti_mixer_dbg_mxn(m, mixer->regs + GAM_MIXER_MX0); + seq_puts(m, "\n"); + + crtc = &mixer->drm_crtc; + if (!crtc) { + seq_puts(m, " Not connected to any DRM CRTC\n"); + continue; + } + seq_printf(m, " Connected to DRM CRTC #%d which is:\n", + crtc->base.id); + seq_puts(m, crtc->enabled ? "\tEnabled\n" : "\tDisabled\n"); + seq_printf(m, "\tMode: %s %dHz\n", + crtc->mode.name, crtc->mode.vrefresh); + seq_printf(m, "\tat %d,%d\n", crtc->x, crtc->y); + + fb = crtc->fb; + if (!fb) { + seq_puts(m, "\tNot connected to any DRM FB\n"); + continue; + } + seq_printf(m, "\tConnected to DRM FB #%d, %dx%d, %.4s\n", + fb->base.id, + fb->width, fb->height, (char *)&fb->pixel_format); + } +out: + mutex_unlock(&dev->struct_mutex); + return 0; +} diff --git a/drivers/gpu/drm/sti/sti_mixer.h b/drivers/gpu/drm/sti/sti_mixer.h index a05e21f..abdd1ad 100644 --- a/drivers/gpu/drm/sti/sti_mixer.h +++ b/drivers/gpu/drm/sti/sti_mixer.h @@ -43,6 +43,8 @@ int sti_mixer_active_video_area(struct sti_mixer *mixer,
void sti_mixer_set_background_status(struct sti_mixer *mixer, bool enable);
+int sti_mixer_dbg_show(struct seq_file *m, void *arg); + /* depth in Cross-bar control = z order */ #define GAM_MIXER_NB_DEPTH_LEVEL 7