![Benjamin Gaignard](/assets/img/avatar_default.png)
Add SPDX identifiers to files under sti directory Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com> Acked-by: Vincent Abriou <vincent.abriou@st.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171206112947.9569-2-benjamin.gaignard@st.com
224 lines
5.8 KiB
C
224 lines
5.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (C) STMicroelectronics SA 2014
|
|
* Author: Fabien Dessenne <fabien.dessenne@st.com> for STMicroelectronics.
|
|
*/
|
|
#include <linux/seq_file.h>
|
|
|
|
#include <drm/drmP.h>
|
|
|
|
#include "sti_plane.h"
|
|
#include "sti_vid.h"
|
|
#include "sti_vtg.h"
|
|
|
|
/* Registers */
|
|
#define VID_CTL 0x00
|
|
#define VID_ALP 0x04
|
|
#define VID_CLF 0x08
|
|
#define VID_VPO 0x0C
|
|
#define VID_VPS 0x10
|
|
#define VID_KEY1 0x28
|
|
#define VID_KEY2 0x2C
|
|
#define VID_MPR0 0x30
|
|
#define VID_MPR1 0x34
|
|
#define VID_MPR2 0x38
|
|
#define VID_MPR3 0x3C
|
|
#define VID_MST 0x68
|
|
#define VID_BC 0x70
|
|
#define VID_TINT 0x74
|
|
#define VID_CSAT 0x78
|
|
|
|
/* Registers values */
|
|
#define VID_CTL_IGNORE (BIT(31) | BIT(30))
|
|
#define VID_CTL_PSI_ENABLE (BIT(2) | BIT(1) | BIT(0))
|
|
#define VID_ALP_OPAQUE 0x00000080
|
|
#define VID_BC_DFLT 0x00008000
|
|
#define VID_TINT_DFLT 0x00000000
|
|
#define VID_CSAT_DFLT 0x00000080
|
|
/* YCbCr to RGB BT709:
|
|
* R = Y+1.5391Cr
|
|
* G = Y-0.4590Cr-0.1826Cb
|
|
* B = Y+1.8125Cb */
|
|
#define VID_MPR0_BT709 0x0A800000
|
|
#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_putc(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;
|
|
|
|
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_putc(s, '\n');
|
|
return 0;
|
|
}
|
|
|
|
static struct drm_info_list vid_debugfs_files[] = {
|
|
{ "vid", vid_dbg_show, 0, NULL },
|
|
};
|
|
|
|
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)
|
|
{
|
|
struct drm_crtc *crtc = state->crtc;
|
|
struct drm_display_mode *mode = &crtc->mode;
|
|
int dst_x = state->crtc_x;
|
|
int dst_y = state->crtc_y;
|
|
int dst_w = clamp_val(state->crtc_w, 0, mode->hdisplay - dst_x);
|
|
int dst_h = clamp_val(state->crtc_h, 0, mode->vdisplay - dst_y);
|
|
int src_h = state->src_h >> 16;
|
|
u32 val, ydo, xdo, yds, xds;
|
|
|
|
/* Input / output size
|
|
* Align to upper even value */
|
|
dst_w = ALIGN(dst_w, 2);
|
|
dst_h = ALIGN(dst_h, 2);
|
|
|
|
/* Unmask */
|
|
val = readl(vid->regs + VID_CTL);
|
|
val &= ~VID_CTL_IGNORE;
|
|
writel(val, vid->regs + VID_CTL);
|
|
|
|
ydo = sti_vtg_get_line_number(*mode, dst_y);
|
|
yds = sti_vtg_get_line_number(*mode, dst_y + dst_h - 1);
|
|
xdo = sti_vtg_get_pixel_number(*mode, dst_x);
|
|
xds = sti_vtg_get_pixel_number(*mode, dst_x + dst_w - 1);
|
|
|
|
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)
|
|
{
|
|
u32 val;
|
|
|
|
/* Mask */
|
|
val = readl(vid->regs + VID_CTL);
|
|
val |= VID_CTL_IGNORE;
|
|
writel(val, vid->regs + VID_CTL);
|
|
}
|
|
|
|
static void sti_vid_init(struct sti_vid *vid)
|
|
{
|
|
/* Enable PSI, Mask layer */
|
|
writel(VID_CTL_PSI_ENABLE | VID_CTL_IGNORE, vid->regs + VID_CTL);
|
|
|
|
/* Opaque */
|
|
writel(VID_ALP_OPAQUE, vid->regs + VID_ALP);
|
|
|
|
/* 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, struct drm_device *drm_dev,
|
|
int id, void __iomem *baseaddr)
|
|
{
|
|
struct sti_vid *vid;
|
|
|
|
vid = devm_kzalloc(dev, sizeof(*vid), GFP_KERNEL);
|
|
if (!vid) {
|
|
DRM_ERROR("Failed to allocate memory for VID\n");
|
|
return NULL;
|
|
}
|
|
|
|
vid->dev = dev;
|
|
vid->regs = baseaddr;
|
|
vid->id = id;
|
|
|
|
sti_vid_init(vid);
|
|
|
|
return vid;
|
|
}
|