Make VIdeo plug more verbose on what is on going
Signed-off-by: Benjamin Gaignard benjamin.gaignard@linaro.org Signed-off-by: Vincent Abriou vincent.abriou@st.com Signed-off-by: Fabien Dessenne fabien.dessenne@st.com --- drivers/gpu/drm/sti/sti_vid.c | 121 ++++++++++++++++++++++++++++++++++++++++++ drivers/gpu/drm/sti/sti_vid.h | 1 + 2 files changed, 122 insertions(+)
diff --git a/drivers/gpu/drm/sti/sti_vid.c b/drivers/gpu/drm/sti/sti_vid.c index 710665d..35f60d8 100644 --- a/drivers/gpu/drm/sti/sti_vid.c +++ b/drivers/gpu/drm/sti/sti_vid.c @@ -8,6 +8,8 @@
#include "sti_vid.h" #include "sti_layer.h" +#include "sti_compositor.h" +#include "sti_drm_drv.h" #include "sti_vtg_utils.h"
/* Registers */ @@ -49,6 +51,8 @@ static int sti_vid_prepare_layer(void *lay, bool first_prepare) struct sti_layer *layer = (struct sti_layer *)lay; struct sti_vid *vid = layer->vid;
+ dev_dbg(vid->dev, "%s %s\n", __func__, sti_layer_to_str(layer)); + /* Unmask */ val = readl(vid->regs + VID_CTL); val &= ~VID_CTL_IGNORE; @@ -64,6 +68,8 @@ static int sti_vid_commit_layer(void *lay) struct drm_display_mode *mode = layer->mode; u32 ydo, xdo, yds, xds;
+ dev_dbg(vid->dev, "%s %s\n", __func__, sti_layer_to_str(layer)); + ydo = sti_vtg_get_line_number(*mode, layer->dst_y); yds = sti_vtg_get_line_number(*mode, layer->dst_y + layer->dst_h - 1); xdo = sti_vtg_get_pixel_number(*mode, layer->dst_x); @@ -81,6 +87,8 @@ static int sti_vid_disable_layer(void *lay) struct sti_layer *layer = (struct sti_layer *)lay; struct sti_vid *vid = layer->vid;
+ DRM_DEBUG_DRIVER("%s\n", sti_layer_to_str(layer)); + /* Mask */ val = readl(vid->regs + VID_CTL); val |= VID_CTL_IGNORE; @@ -136,3 +144,116 @@ struct sti_vid *sti_vid_create(struct device *dev, void __iomem *baseaddr)
return vid; } + +static void sti_vid_dbg_ctl(struct seq_file *m, int val) +{ + val = val >> 30; + seq_puts(m, "\t"); + + if (!(val & 1)) + seq_puts(m, "NOT "); + seq_puts(m, "ignored on main mixer - "); + + if (!(val & 2)) + seq_puts(m, "NOT "); + seq_puts(m, "ignored on aux mixer"); +} + +static void sti_vid_dbg_vpo(struct seq_file *m, int val) +{ + seq_printf(m, "\txdo:%4d\tydo:%4d", val & 0x0FFF, (val >> 16) & 0x0FFF); +} + +static void sti_vid_dbg_vps(struct seq_file *m, int val) +{ + seq_printf(m, "\txds:%4d\tyds:%4d", val & 0x0FFF, (val >> 16) & 0x0FFF); +} + +static void sti_vid_dbg_mst(struct seq_file *m, int val) +{ + if (val & 1) + seq_puts(m, "\tBUFFER UNDERFLOW!"); +} + +#define DBG_DUMP(reg) \ + seq_printf(m, "\n " #reg "\t 0x%08X", readl(vid->regs + reg)) + +int sti_vid_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; + enum sti_layer_desc vid_id = *(enum sti_layer_desc *)arg; + struct sti_layer *layer; + struct sti_vid *vid; + struct drm_plane *plane; + struct drm_crtc *crtc; + struct drm_framebuffer *fb; + + if (compo == NULL) { + seq_puts(m, "No compo available\n"); + goto out; + } + + layer = sti_layer_find_layer(compo->layer, vid_id); + if (!layer) { + seq_puts(m, "Cannot find video layer\n"); + goto out; + } + vid = layer->vid; + + seq_printf(m, "\n%s (associated with the mixer_id %d)", + sti_layer_to_str(layer), layer->mixer_id); + seq_printf(m, "\t %d frame updates", + layer->fps_info.curr_frame_counter); + + DBG_DUMP(VID_CTL); + sti_vid_dbg_ctl(m, readl(vid->regs + VID_CTL)); + DBG_DUMP(VID_ALP); + DBG_DUMP(VID_CLF); + DBG_DUMP(VID_VPO); + sti_vid_dbg_vpo(m, readl(vid->regs + VID_VPO)); + DBG_DUMP(VID_VPS); + sti_vid_dbg_vps(m, readl(vid->regs + VID_VPS)); + DBG_DUMP(VID_KEY1); + DBG_DUMP(VID_KEY2); + DBG_DUMP(VID_MPR0); + DBG_DUMP(VID_MPR1); + DBG_DUMP(VID_MPR2); + DBG_DUMP(VID_MPR3); + DBG_DUMP(VID_MST); + sti_vid_dbg_mst(m, readl(vid->regs + VID_MST)); + DBG_DUMP(VID_BC); + DBG_DUMP(VID_TINT); + DBG_DUMP(VID_CSAT); + + seq_puts(m, "\n"); + + plane = &layer->plane; + if (!plane->base.id) { + seq_puts(m, " Not connected to any DRM PLANE\n"); + goto out; + } + seq_printf(m, " Connected to DRM PLANE #%d which is:\n", + plane->base.id); + + crtc = plane->crtc; + if (!crtc) { + seq_puts(m, "\tNot connected to any DRM CRTC\n"); + goto out; + } + seq_printf(m, "\tConnected to DRM CRTC #%d\n", crtc->base.id); + + fb = crtc->fb; + if (!fb) { + seq_puts(m, "\tNot connected to any DRM FB\n"); + goto out; + } + seq_printf(m, "\tConnected to DRM FB #%d, %dx%d, %.4s\n", + fb->base.id, + fb->width, fb->height, (char *)&fb->pixel_format); + +out: + return 0; +} diff --git a/drivers/gpu/drm/sti/sti_vid.h b/drivers/gpu/drm/sti/sti_vid.h index dd4fd95..6261ade 100644 --- a/drivers/gpu/drm/sti/sti_vid.h +++ b/drivers/gpu/drm/sti/sti_vid.h @@ -29,5 +29,6 @@ struct sti_vid { };
struct sti_vid *sti_vid_create(struct device *dev, void __iomem *baseaddr); +int sti_vid_dbg_show(struct seq_file *m, void *arg);
#endif