diff options
Diffstat (limited to 'drivers/gpu/drm/sti/sti_vid.c')
| -rw-r--r-- | drivers/gpu/drm/sti/sti_vid.c | 125 |
1 files changed, 117 insertions, 8 deletions
diff --git a/drivers/gpu/drm/sti/sti_vid.c b/drivers/gpu/drm/sti/sti_vid.c index a8254cc362a1..5a2c5dc3687b 100644 --- a/drivers/gpu/drm/sti/sti_vid.c +++ b/drivers/gpu/drm/sti/sti_vid.c @@ -42,6 +42,104 @@ #define VID_MPR1_BT709 0x0AC50000 #define VID_MPR2_BT709 0x07150545 #define VID_MPR3_BT709 0x00000AE8 +/* YCbCr to RGB BT709: + * R = Y+1.3711Cr + * G = Y-0.6992Cr-0.3359Cb + * B = Y+1.7344Cb + */ +#define VID_MPR0_BT601 0x0A800000 +#define VID_MPR1_BT601 0x0AAF0000 +#define VID_MPR2_BT601 0x094E0754 +#define VID_MPR3_BT601 0x00000ADD + +#define VID_MIN_HD_HEIGHT 720 + +#define DBGFS_DUMP(reg) seq_printf(s, "\n %-25s 0x%08X", #reg, \ + readl(vid->regs + reg)) + +static void vid_dbg_ctl(struct seq_file *s, int val) +{ + val = val >> 30; + seq_puts(s, "\t"); + + if (!(val & 1)) + seq_puts(s, "NOT "); + seq_puts(s, "ignored on main mixer - "); + + if (!(val & 2)) + seq_puts(s, "NOT "); + seq_puts(s, "ignored on aux mixer"); +} + +static void vid_dbg_vpo(struct seq_file *s, int val) +{ + seq_printf(s, "\txdo:%4d\tydo:%4d", val & 0x0FFF, (val >> 16) & 0x0FFF); +} + +static void vid_dbg_vps(struct seq_file *s, int val) +{ + seq_printf(s, "\txds:%4d\tyds:%4d", val & 0x0FFF, (val >> 16) & 0x0FFF); +} + +static void vid_dbg_mst(struct seq_file *s, int val) +{ + if (val & 1) + seq_puts(s, "\tBUFFER UNDERFLOW!"); +} + +static int vid_dbg_show(struct seq_file *s, void *arg) +{ + struct drm_info_node *node = s->private; + struct sti_vid *vid = (struct sti_vid *)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, "VID: (vaddr= 0x%p)", vid->regs); + + DBGFS_DUMP(VID_CTL); + vid_dbg_ctl(s, readl(vid->regs + VID_CTL)); + DBGFS_DUMP(VID_ALP); + DBGFS_DUMP(VID_CLF); + DBGFS_DUMP(VID_VPO); + vid_dbg_vpo(s, readl(vid->regs + VID_VPO)); + DBGFS_DUMP(VID_VPS); + vid_dbg_vps(s, readl(vid->regs + VID_VPS)); + DBGFS_DUMP(VID_KEY1); + DBGFS_DUMP(VID_KEY2); + DBGFS_DUMP(VID_MPR0); + DBGFS_DUMP(VID_MPR1); + DBGFS_DUMP(VID_MPR2); + DBGFS_DUMP(VID_MPR3); + DBGFS_DUMP(VID_MST); + vid_dbg_mst(s, readl(vid->regs + VID_MST)); + DBGFS_DUMP(VID_BC); + DBGFS_DUMP(VID_TINT); + DBGFS_DUMP(VID_CSAT); + seq_puts(s, "\n"); + + mutex_unlock(&dev->struct_mutex); + return 0; +} + +static struct drm_info_list vid_debugfs_files[] = { + { "vid", vid_dbg_show, 0, NULL }, +}; + +static int vid_debugfs_init(struct sti_vid *vid, struct drm_minor *minor) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(vid_debugfs_files); i++) + vid_debugfs_files[i].data = vid; + + return drm_debugfs_create_files(vid_debugfs_files, + ARRAY_SIZE(vid_debugfs_files), + minor->debugfs_root, minor); +} void sti_vid_commit(struct sti_vid *vid, struct drm_plane_state *state) @@ -52,6 +150,7 @@ void sti_vid_commit(struct sti_vid *vid, int dst_y = state->crtc_y; int dst_w = clamp_val(state->crtc_w, 0, mode->crtc_hdisplay - dst_x); int dst_h = clamp_val(state->crtc_h, 0, mode->crtc_vdisplay - dst_y); + int src_h = state->src_h >> 16; u32 val, ydo, xdo, yds, xds; /* Input / output size @@ -71,6 +170,19 @@ void sti_vid_commit(struct sti_vid *vid, writel((ydo << 16) | xdo, vid->regs + VID_VPO); writel((yds << 16) | xds, vid->regs + VID_VPS); + + /* Color conversion parameters */ + if (src_h >= VID_MIN_HD_HEIGHT) { + writel(VID_MPR0_BT709, vid->regs + VID_MPR0); + writel(VID_MPR1_BT709, vid->regs + VID_MPR1); + writel(VID_MPR2_BT709, vid->regs + VID_MPR2); + writel(VID_MPR3_BT709, vid->regs + VID_MPR3); + } else { + writel(VID_MPR0_BT601, vid->regs + VID_MPR0); + writel(VID_MPR1_BT601, vid->regs + VID_MPR1); + writel(VID_MPR2_BT601, vid->regs + VID_MPR2); + writel(VID_MPR3_BT601, vid->regs + VID_MPR3); + } } void sti_vid_disable(struct sti_vid *vid) @@ -91,20 +203,14 @@ static void sti_vid_init(struct sti_vid *vid) /* Opaque */ writel(VID_ALP_OPAQUE, vid->regs + VID_ALP); - /* Color conversion parameters */ - writel(VID_MPR0_BT709, vid->regs + VID_MPR0); - writel(VID_MPR1_BT709, vid->regs + VID_MPR1); - writel(VID_MPR2_BT709, vid->regs + VID_MPR2); - writel(VID_MPR3_BT709, vid->regs + VID_MPR3); - /* Brightness, contrast, tint, saturation */ writel(VID_BC_DFLT, vid->regs + VID_BC); writel(VID_TINT_DFLT, vid->regs + VID_TINT); writel(VID_CSAT_DFLT, vid->regs + VID_CSAT); } -struct sti_vid *sti_vid_create(struct device *dev, int id, - void __iomem *baseaddr) +struct sti_vid *sti_vid_create(struct device *dev, struct drm_device *drm_dev, + int id, void __iomem *baseaddr) { struct sti_vid *vid; @@ -120,5 +226,8 @@ struct sti_vid *sti_vid_create(struct device *dev, int id, sti_vid_init(vid); + if (vid_debugfs_init(vid, drm_dev->primary)) + DRM_ERROR("VID debugfs setup failed\n"); + return vid; } |