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linuxdebug/drivers/media/platform/ti/davinci/vpbe_osd.c

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null pointer error
2024-07-16 15:50:57 +02:00
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2007-2010 Texas Instruments Inc
* Copyright (C) 2007 MontaVista Software, Inc.
*
* Andy Lowe (alowe@mvista.com), MontaVista Software
* - Initial version
* Murali Karicheri (mkaricheri@gmail.com), Texas Instruments Ltd.
* - ported to sub device interface
*/
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/slab.h>
#include <media/davinci/vpss.h>
#include <media/v4l2-device.h>
#include <media/davinci/vpbe_types.h>
#include <media/davinci/vpbe_osd.h>
#include <linux/io.h>
#include "vpbe_osd_regs.h"
#define MODULE_NAME "davinci-vpbe-osd"
static const struct platform_device_id vpbe_osd_devtype[] = {
{
.name = DM644X_VPBE_OSD_SUBDEV_NAME,
.driver_data = VPBE_VERSION_1,
}, {
.name = DM365_VPBE_OSD_SUBDEV_NAME,
.driver_data = VPBE_VERSION_2,
}, {
.name = DM355_VPBE_OSD_SUBDEV_NAME,
.driver_data = VPBE_VERSION_3,
},
{
/* sentinel */
}
};
MODULE_DEVICE_TABLE(platform, vpbe_osd_devtype);
/* register access routines */
static inline u32 __always_unused osd_read(struct osd_state *sd, u32 offset)
{
struct osd_state *osd = sd;
return readl(osd->osd_base + offset);
}
static inline u32 osd_write(struct osd_state *sd, u32 val, u32 offset)
{
struct osd_state *osd = sd;
writel(val, osd->osd_base + offset);
return val;
}
static inline u32 osd_set(struct osd_state *sd, u32 mask, u32 offset)
{
struct osd_state *osd = sd;
void __iomem *addr = osd->osd_base + offset;
u32 val = readl(addr) | mask;
writel(val, addr);
return val;
}
static inline u32 osd_clear(struct osd_state *sd, u32 mask, u32 offset)
{
struct osd_state *osd = sd;
void __iomem *addr = osd->osd_base + offset;
u32 val = readl(addr) & ~mask;
writel(val, addr);
return val;
}
static inline u32 osd_modify(struct osd_state *sd, u32 mask, u32 val,
u32 offset)
{
struct osd_state *osd = sd;
void __iomem *addr = osd->osd_base + offset;
u32 new_val = (readl(addr) & ~mask) | (val & mask);
writel(new_val, addr);
return new_val;
}
/* define some macros for layer and pixfmt classification */
#define is_osd_win(layer) (((layer) == WIN_OSD0) || ((layer) == WIN_OSD1))
#define is_vid_win(layer) (((layer) == WIN_VID0) || ((layer) == WIN_VID1))
#define is_rgb_pixfmt(pixfmt) \
(((pixfmt) == PIXFMT_RGB565) || ((pixfmt) == PIXFMT_RGB888))
#define is_yc_pixfmt(pixfmt) \
(((pixfmt) == PIXFMT_YCBCRI) || ((pixfmt) == PIXFMT_YCRCBI) || \
((pixfmt) == PIXFMT_NV12))
#define MAX_WIN_SIZE OSD_VIDWIN0XP_V0X
#define MAX_LINE_LENGTH (OSD_VIDWIN0OFST_V0LO << 5)
/**
* _osd_dm6446_vid0_pingpong() - field inversion fix for DM6446
* @sd: ptr to struct osd_state
* @field_inversion: inversion flag
* @fb_base_phys: frame buffer address
* @lconfig: ptr to layer config
*
* This routine implements a workaround for the field signal inversion silicon
* erratum described in Advisory 1.3.8 for the DM6446. The fb_base_phys and
* lconfig parameters apply to the vid0 window. This routine should be called
* whenever the vid0 layer configuration or start address is modified, or when
* the OSD field inversion setting is modified.
* Returns: 1 if the ping-pong buffers need to be toggled in the vsync isr, or
* 0 otherwise
*/
static int _osd_dm6446_vid0_pingpong(struct osd_state *sd,
int field_inversion,
unsigned long fb_base_phys,
const struct osd_layer_config *lconfig)
{
struct osd_platform_data *pdata;
pdata = (struct osd_platform_data *)sd->dev->platform_data;
if (pdata != NULL && pdata->field_inv_wa_enable) {
if (!field_inversion || !lconfig->interlaced) {
osd_write(sd, fb_base_phys & ~0x1F, OSD_VIDWIN0ADR);
osd_write(sd, fb_base_phys & ~0x1F, OSD_PPVWIN0ADR);
osd_modify(sd, OSD_MISCCTL_PPSW | OSD_MISCCTL_PPRV, 0,
OSD_MISCCTL);
return 0;
} else {
unsigned miscctl = OSD_MISCCTL_PPRV;
osd_write(sd,
(fb_base_phys & ~0x1F) - lconfig->line_length,
OSD_VIDWIN0ADR);
osd_write(sd,
(fb_base_phys & ~0x1F) + lconfig->line_length,
OSD_PPVWIN0ADR);
osd_modify(sd,
OSD_MISCCTL_PPSW | OSD_MISCCTL_PPRV, miscctl,
OSD_MISCCTL);
return 1;
}
}
return 0;
}
static void _osd_set_field_inversion(struct osd_state *sd, int enable)
{
unsigned fsinv = 0;
if (enable)
fsinv = OSD_MODE_FSINV;
osd_modify(sd, OSD_MODE_FSINV, fsinv, OSD_MODE);
}
static void _osd_set_blink_attribute(struct osd_state *sd, int enable,
enum osd_blink_interval blink)
{
u32 osdatrmd = 0;
if (enable) {
osdatrmd |= OSD_OSDATRMD_BLNK;
osdatrmd |= blink << OSD_OSDATRMD_BLNKINT_SHIFT;
}
/* caller must ensure that OSD1 is configured in attribute mode */
osd_modify(sd, OSD_OSDATRMD_BLNKINT | OSD_OSDATRMD_BLNK, osdatrmd,
OSD_OSDATRMD);
}
static void _osd_set_rom_clut(struct osd_state *sd,
enum osd_rom_clut rom_clut)
{
if (rom_clut == ROM_CLUT0)
osd_clear(sd, OSD_MISCCTL_RSEL, OSD_MISCCTL);
else
osd_set(sd, OSD_MISCCTL_RSEL, OSD_MISCCTL);
}
static void _osd_set_palette_map(struct osd_state *sd,
enum osd_win_layer osdwin,
unsigned char pixel_value,
unsigned char clut_index,
enum osd_pix_format pixfmt)
{
static const int map_2bpp[] = { 0, 5, 10, 15 };
static const int map_1bpp[] = { 0, 15 };
int bmp_offset;
int bmp_shift;
int bmp_mask;
int bmp_reg;
switch (pixfmt) {
case PIXFMT_1BPP:
bmp_reg = map_1bpp[pixel_value & 0x1];
break;
case PIXFMT_2BPP:
bmp_reg = map_2bpp[pixel_value & 0x3];
break;
case PIXFMT_4BPP:
bmp_reg = pixel_value & 0xf;
break;
default:
return;
}
switch (osdwin) {
case OSDWIN_OSD0:
bmp_offset = OSD_W0BMP01 + (bmp_reg >> 1) * sizeof(u32);
break;
case OSDWIN_OSD1:
bmp_offset = OSD_W1BMP01 + (bmp_reg >> 1) * sizeof(u32);
break;
default:
return;
}
if (bmp_reg & 1) {
bmp_shift = 8;
bmp_mask = 0xff << 8;
} else {
bmp_shift = 0;
bmp_mask = 0xff;
}
osd_modify(sd, bmp_mask, clut_index << bmp_shift, bmp_offset);
}
static void _osd_set_rec601_attenuation(struct osd_state *sd,
enum osd_win_layer osdwin, int enable)
{
switch (osdwin) {
case OSDWIN_OSD0:
osd_modify(sd, OSD_OSDWIN0MD_ATN0E,
enable ? OSD_OSDWIN0MD_ATN0E : 0,
OSD_OSDWIN0MD);
if (sd->vpbe_type == VPBE_VERSION_1)
osd_modify(sd, OSD_OSDWIN0MD_ATN0E,
enable ? OSD_OSDWIN0MD_ATN0E : 0,
OSD_OSDWIN0MD);
else if ((sd->vpbe_type == VPBE_VERSION_3) ||
(sd->vpbe_type == VPBE_VERSION_2))
osd_modify(sd, OSD_EXTMODE_ATNOSD0EN,
enable ? OSD_EXTMODE_ATNOSD0EN : 0,
OSD_EXTMODE);
break;
case OSDWIN_OSD1:
osd_modify(sd, OSD_OSDWIN1MD_ATN1E,
enable ? OSD_OSDWIN1MD_ATN1E : 0,
OSD_OSDWIN1MD);
if (sd->vpbe_type == VPBE_VERSION_1)
osd_modify(sd, OSD_OSDWIN1MD_ATN1E,
enable ? OSD_OSDWIN1MD_ATN1E : 0,
OSD_OSDWIN1MD);
else if ((sd->vpbe_type == VPBE_VERSION_3) ||
(sd->vpbe_type == VPBE_VERSION_2))
osd_modify(sd, OSD_EXTMODE_ATNOSD1EN,
enable ? OSD_EXTMODE_ATNOSD1EN : 0,
OSD_EXTMODE);
break;
}
}
static void _osd_set_blending_factor(struct osd_state *sd,
enum osd_win_layer osdwin,
enum osd_blending_factor blend)
{
switch (osdwin) {
case OSDWIN_OSD0:
osd_modify(sd, OSD_OSDWIN0MD_BLND0,
blend << OSD_OSDWIN0MD_BLND0_SHIFT, OSD_OSDWIN0MD);
break;
case OSDWIN_OSD1:
osd_modify(sd, OSD_OSDWIN1MD_BLND1,
blend << OSD_OSDWIN1MD_BLND1_SHIFT, OSD_OSDWIN1MD);
break;
}
}
static void _osd_enable_rgb888_pixblend(struct osd_state *sd,
enum osd_win_layer osdwin)
{
osd_modify(sd, OSD_MISCCTL_BLDSEL, 0, OSD_MISCCTL);
switch (osdwin) {
case OSDWIN_OSD0:
osd_modify(sd, OSD_EXTMODE_OSD0BLDCHR,
OSD_EXTMODE_OSD0BLDCHR, OSD_EXTMODE);
break;
case OSDWIN_OSD1:
osd_modify(sd, OSD_EXTMODE_OSD1BLDCHR,
OSD_EXTMODE_OSD1BLDCHR, OSD_EXTMODE);
break;
}
}
static void _osd_enable_color_key(struct osd_state *sd,
enum osd_win_layer osdwin,
unsigned colorkey,
enum osd_pix_format pixfmt)
{
switch (pixfmt) {
case PIXFMT_1BPP:
case PIXFMT_2BPP:
case PIXFMT_4BPP:
case PIXFMT_8BPP:
if (sd->vpbe_type == VPBE_VERSION_3) {
switch (osdwin) {
case OSDWIN_OSD0:
osd_modify(sd, OSD_TRANSPBMPIDX_BMP0,
colorkey <<
OSD_TRANSPBMPIDX_BMP0_SHIFT,
OSD_TRANSPBMPIDX);
break;
case OSDWIN_OSD1:
osd_modify(sd, OSD_TRANSPBMPIDX_BMP1,
colorkey <<
OSD_TRANSPBMPIDX_BMP1_SHIFT,
OSD_TRANSPBMPIDX);
break;
}
}
break;
case PIXFMT_RGB565:
if (sd->vpbe_type == VPBE_VERSION_1)
osd_write(sd, colorkey & OSD_TRANSPVAL_RGBTRANS,
OSD_TRANSPVAL);
else if (sd->vpbe_type == VPBE_VERSION_3)
osd_write(sd, colorkey & OSD_TRANSPVALL_RGBL,
OSD_TRANSPVALL);
break;
case PIXFMT_YCBCRI:
case PIXFMT_YCRCBI:
if (sd->vpbe_type == VPBE_VERSION_3)
osd_modify(sd, OSD_TRANSPVALU_Y, colorkey,
OSD_TRANSPVALU);
break;
case PIXFMT_RGB888:
if (sd->vpbe_type == VPBE_VERSION_3) {
osd_write(sd, colorkey & OSD_TRANSPVALL_RGBL,
OSD_TRANSPVALL);
osd_modify(sd, OSD_TRANSPVALU_RGBU, colorkey >> 16,
OSD_TRANSPVALU);
}
break;
default:
break;
}
switch (osdwin) {
case OSDWIN_OSD0:
osd_set(sd, OSD_OSDWIN0MD_TE0, OSD_OSDWIN0MD);
break;
case OSDWIN_OSD1:
osd_set(sd, OSD_OSDWIN1MD_TE1, OSD_OSDWIN1MD);
break;
}
}
static void _osd_disable_color_key(struct osd_state *sd,
enum osd_win_layer osdwin)
{
switch (osdwin) {
case OSDWIN_OSD0:
osd_clear(sd, OSD_OSDWIN0MD_TE0, OSD_OSDWIN0MD);
break;
case OSDWIN_OSD1:
osd_clear(sd, OSD_OSDWIN1MD_TE1, OSD_OSDWIN1MD);
break;
}
}
static void _osd_set_osd_clut(struct osd_state *sd,
enum osd_win_layer osdwin,
enum osd_clut clut)
{
u32 winmd = 0;
switch (osdwin) {
case OSDWIN_OSD0:
if (clut == RAM_CLUT)
winmd |= OSD_OSDWIN0MD_CLUTS0;
osd_modify(sd, OSD_OSDWIN0MD_CLUTS0, winmd, OSD_OSDWIN0MD);
break;
case OSDWIN_OSD1:
if (clut == RAM_CLUT)
winmd |= OSD_OSDWIN1MD_CLUTS1;
osd_modify(sd, OSD_OSDWIN1MD_CLUTS1, winmd, OSD_OSDWIN1MD);
break;
}
}
static void _osd_set_zoom(struct osd_state *sd, enum osd_layer layer,
enum osd_zoom_factor h_zoom,
enum osd_zoom_factor v_zoom)
{
u32 winmd = 0;
switch (layer) {
case WIN_OSD0:
winmd |= (h_zoom << OSD_OSDWIN0MD_OHZ0_SHIFT);
winmd |= (v_zoom << OSD_OSDWIN0MD_OVZ0_SHIFT);
osd_modify(sd, OSD_OSDWIN0MD_OHZ0 | OSD_OSDWIN0MD_OVZ0, winmd,
OSD_OSDWIN0MD);
break;
case WIN_VID0:
winmd |= (h_zoom << OSD_VIDWINMD_VHZ0_SHIFT);
winmd |= (v_zoom << OSD_VIDWINMD_VVZ0_SHIFT);
osd_modify(sd, OSD_VIDWINMD_VHZ0 | OSD_VIDWINMD_VVZ0, winmd,
OSD_VIDWINMD);
break;
case WIN_OSD1:
winmd |= (h_zoom << OSD_OSDWIN1MD_OHZ1_SHIFT);
winmd |= (v_zoom << OSD_OSDWIN1MD_OVZ1_SHIFT);
osd_modify(sd, OSD_OSDWIN1MD_OHZ1 | OSD_OSDWIN1MD_OVZ1, winmd,
OSD_OSDWIN1MD);
break;
case WIN_VID1:
winmd |= (h_zoom << OSD_VIDWINMD_VHZ1_SHIFT);
winmd |= (v_zoom << OSD_VIDWINMD_VVZ1_SHIFT);
osd_modify(sd, OSD_VIDWINMD_VHZ1 | OSD_VIDWINMD_VVZ1, winmd,
OSD_VIDWINMD);
break;
}
}
static void _osd_disable_layer(struct osd_state *sd, enum osd_layer layer)
{
switch (layer) {
case WIN_OSD0:
osd_clear(sd, OSD_OSDWIN0MD_OACT0, OSD_OSDWIN0MD);
break;
case WIN_VID0:
osd_clear(sd, OSD_VIDWINMD_ACT0, OSD_VIDWINMD);
break;
case WIN_OSD1:
/* disable attribute mode as well as disabling the window */
osd_clear(sd, OSD_OSDWIN1MD_OASW | OSD_OSDWIN1MD_OACT1,
OSD_OSDWIN1MD);
break;
case WIN_VID1:
osd_clear(sd, OSD_VIDWINMD_ACT1, OSD_VIDWINMD);
break;
}
}
static void osd_disable_layer(struct osd_state *sd, enum osd_layer layer)
{
struct osd_state *osd = sd;
struct osd_window_state *win = &osd->win[layer];
unsigned long flags;
spin_lock_irqsave(&osd->lock, flags);
if (!win->is_enabled) {
spin_unlock_irqrestore(&osd->lock, flags);
return;
}
win->is_enabled = 0;
_osd_disable_layer(sd, layer);
spin_unlock_irqrestore(&osd->lock, flags);
}
static void _osd_enable_attribute_mode(struct osd_state *sd)
{
/* enable attribute mode for OSD1 */
osd_set(sd, OSD_OSDWIN1MD_OASW, OSD_OSDWIN1MD);
}
static void _osd_enable_layer(struct osd_state *sd, enum osd_layer layer)
{
switch (layer) {
case WIN_OSD0:
osd_set(sd, OSD_OSDWIN0MD_OACT0, OSD_OSDWIN0MD);
break;
case WIN_VID0:
osd_set(sd, OSD_VIDWINMD_ACT0, OSD_VIDWINMD);
break;
case WIN_OSD1:
/* enable OSD1 and disable attribute mode */
osd_modify(sd, OSD_OSDWIN1MD_OASW | OSD_OSDWIN1MD_OACT1,
OSD_OSDWIN1MD_OACT1, OSD_OSDWIN1MD);
break;
case WIN_VID1:
osd_set(sd, OSD_VIDWINMD_ACT1, OSD_VIDWINMD);
break;
}
}
static int osd_enable_layer(struct osd_state *sd, enum osd_layer layer,
int otherwin)
{
struct osd_state *osd = sd;
struct osd_window_state *win = &osd->win[layer];
struct osd_layer_config *cfg = &win->lconfig;
unsigned long flags;
spin_lock_irqsave(&osd->lock, flags);
/*
* use otherwin flag to know this is the other vid window
* in YUV420 mode, if is, skip this check
*/
if (!otherwin && (!win->is_allocated ||
!win->fb_base_phys ||
!cfg->line_length ||
!cfg->xsize ||
!cfg->ysize)) {
spin_unlock_irqrestore(&osd->lock, flags);
return -1;
}
if (win->is_enabled) {
spin_unlock_irqrestore(&osd->lock, flags);
return 0;
}
win->is_enabled = 1;
if (cfg->pixfmt != PIXFMT_OSD_ATTR)
_osd_enable_layer(sd, layer);
else {
_osd_enable_attribute_mode(sd);
_osd_set_blink_attribute(sd, osd->is_blinking, osd->blink);
}
spin_unlock_irqrestore(&osd->lock, flags);
return 0;
}
#define OSD_SRC_ADDR_HIGH4 0x7800000
#define OSD_SRC_ADDR_HIGH7 0x7F0000
#define OSD_SRCADD_OFSET_SFT 23
#define OSD_SRCADD_ADD_SFT 16
#define OSD_WINADL_MASK 0xFFFF
#define OSD_WINOFST_MASK 0x1000
#define VPBE_REG_BASE 0x80000000
static void _osd_start_layer(struct osd_state *sd, enum osd_layer layer,
unsigned long fb_base_phys,
unsigned long cbcr_ofst)
{
if (sd->vpbe_type == VPBE_VERSION_1) {
switch (layer) {
case WIN_OSD0:
osd_write(sd, fb_base_phys & ~0x1F, OSD_OSDWIN0ADR);
break;
case WIN_VID0:
osd_write(sd, fb_base_phys & ~0x1F, OSD_VIDWIN0ADR);
break;
case WIN_OSD1:
osd_write(sd, fb_base_phys & ~0x1F, OSD_OSDWIN1ADR);
break;
case WIN_VID1:
osd_write(sd, fb_base_phys & ~0x1F, OSD_VIDWIN1ADR);
break;
}
} else if (sd->vpbe_type == VPBE_VERSION_3) {
unsigned long fb_offset_32 =
(fb_base_phys - VPBE_REG_BASE) >> 5;
switch (layer) {
case WIN_OSD0:
osd_modify(sd, OSD_OSDWINADH_O0AH,
fb_offset_32 >> (OSD_SRCADD_ADD_SFT -
OSD_OSDWINADH_O0AH_SHIFT),
OSD_OSDWINADH);
osd_write(sd, fb_offset_32 & OSD_OSDWIN0ADL_O0AL,
OSD_OSDWIN0ADL);
break;
case WIN_VID0:
osd_modify(sd, OSD_VIDWINADH_V0AH,
fb_offset_32 >> (OSD_SRCADD_ADD_SFT -
OSD_VIDWINADH_V0AH_SHIFT),
OSD_VIDWINADH);
osd_write(sd, fb_offset_32 & OSD_VIDWIN0ADL_V0AL,
OSD_VIDWIN0ADL);
break;
case WIN_OSD1:
osd_modify(sd, OSD_OSDWINADH_O1AH,
fb_offset_32 >> (OSD_SRCADD_ADD_SFT -
OSD_OSDWINADH_O1AH_SHIFT),
OSD_OSDWINADH);
osd_write(sd, fb_offset_32 & OSD_OSDWIN1ADL_O1AL,
OSD_OSDWIN1ADL);
break;
case WIN_VID1:
osd_modify(sd, OSD_VIDWINADH_V1AH,
fb_offset_32 >> (OSD_SRCADD_ADD_SFT -
OSD_VIDWINADH_V1AH_SHIFT),
OSD_VIDWINADH);
osd_write(sd, fb_offset_32 & OSD_VIDWIN1ADL_V1AL,
OSD_VIDWIN1ADL);
break;
}
} else if (sd->vpbe_type == VPBE_VERSION_2) {
struct osd_window_state *win = &sd->win[layer];
unsigned long fb_offset_32, cbcr_offset_32;
fb_offset_32 = fb_base_phys - VPBE_REG_BASE;
if (cbcr_ofst)
cbcr_offset_32 = cbcr_ofst;
else
cbcr_offset_32 = win->lconfig.line_length *
win->lconfig.ysize;
cbcr_offset_32 += fb_offset_32;
fb_offset_32 = fb_offset_32 >> 5;
cbcr_offset_32 = cbcr_offset_32 >> 5;
/*
* DM365: start address is 27-bit long address b26 - b23 are
* in offset register b12 - b9, and * bit 26 has to be '1'
*/
if (win->lconfig.pixfmt == PIXFMT_NV12) {
switch (layer) {
case WIN_VID0:
case WIN_VID1:
/* Y is in VID0 */
osd_modify(sd, OSD_VIDWIN0OFST_V0AH,
((fb_offset_32 & OSD_SRC_ADDR_HIGH4) >>
(OSD_SRCADD_OFSET_SFT -
OSD_WINOFST_AH_SHIFT)) |
OSD_WINOFST_MASK, OSD_VIDWIN0OFST);
osd_modify(sd, OSD_VIDWINADH_V0AH,
(fb_offset_32 & OSD_SRC_ADDR_HIGH7) >>
(OSD_SRCADD_ADD_SFT -
OSD_VIDWINADH_V0AH_SHIFT),
OSD_VIDWINADH);
osd_write(sd, fb_offset_32 & OSD_WINADL_MASK,
OSD_VIDWIN0ADL);
/* CbCr is in VID1 */
osd_modify(sd, OSD_VIDWIN1OFST_V1AH,
((cbcr_offset_32 &
OSD_SRC_ADDR_HIGH4) >>
(OSD_SRCADD_OFSET_SFT -
OSD_WINOFST_AH_SHIFT)) |
OSD_WINOFST_MASK, OSD_VIDWIN1OFST);
osd_modify(sd, OSD_VIDWINADH_V1AH,
(cbcr_offset_32 &
OSD_SRC_ADDR_HIGH7) >>
(OSD_SRCADD_ADD_SFT -
OSD_VIDWINADH_V1AH_SHIFT),
OSD_VIDWINADH);
osd_write(sd, cbcr_offset_32 & OSD_WINADL_MASK,
OSD_VIDWIN1ADL);
break;
default:
break;
}
}
switch (layer) {
case WIN_OSD0:
osd_modify(sd, OSD_OSDWIN0OFST_O0AH,
((fb_offset_32 & OSD_SRC_ADDR_HIGH4) >>
(OSD_SRCADD_OFSET_SFT -
OSD_WINOFST_AH_SHIFT)) | OSD_WINOFST_MASK,
OSD_OSDWIN0OFST);
osd_modify(sd, OSD_OSDWINADH_O0AH,
(fb_offset_32 & OSD_SRC_ADDR_HIGH7) >>
(OSD_SRCADD_ADD_SFT -
OSD_OSDWINADH_O0AH_SHIFT), OSD_OSDWINADH);
osd_write(sd, fb_offset_32 & OSD_WINADL_MASK,
OSD_OSDWIN0ADL);
break;
case WIN_VID0:
if (win->lconfig.pixfmt != PIXFMT_NV12) {
osd_modify(sd, OSD_VIDWIN0OFST_V0AH,
((fb_offset_32 & OSD_SRC_ADDR_HIGH4) >>
(OSD_SRCADD_OFSET_SFT -
OSD_WINOFST_AH_SHIFT)) |
OSD_WINOFST_MASK, OSD_VIDWIN0OFST);
osd_modify(sd, OSD_VIDWINADH_V0AH,
(fb_offset_32 & OSD_SRC_ADDR_HIGH7) >>
(OSD_SRCADD_ADD_SFT -
OSD_VIDWINADH_V0AH_SHIFT),
OSD_VIDWINADH);
osd_write(sd, fb_offset_32 & OSD_WINADL_MASK,
OSD_VIDWIN0ADL);
}
break;
case WIN_OSD1:
osd_modify(sd, OSD_OSDWIN1OFST_O1AH,
((fb_offset_32 & OSD_SRC_ADDR_HIGH4) >>
(OSD_SRCADD_OFSET_SFT -
OSD_WINOFST_AH_SHIFT)) | OSD_WINOFST_MASK,
OSD_OSDWIN1OFST);
osd_modify(sd, OSD_OSDWINADH_O1AH,
(fb_offset_32 & OSD_SRC_ADDR_HIGH7) >>
(OSD_SRCADD_ADD_SFT -
OSD_OSDWINADH_O1AH_SHIFT),
OSD_OSDWINADH);
osd_write(sd, fb_offset_32 & OSD_WINADL_MASK,
OSD_OSDWIN1ADL);
break;
case WIN_VID1:
if (win->lconfig.pixfmt != PIXFMT_NV12) {
osd_modify(sd, OSD_VIDWIN1OFST_V1AH,
((fb_offset_32 & OSD_SRC_ADDR_HIGH4) >>
(OSD_SRCADD_OFSET_SFT -
OSD_WINOFST_AH_SHIFT)) |
OSD_WINOFST_MASK, OSD_VIDWIN1OFST);
osd_modify(sd, OSD_VIDWINADH_V1AH,
(fb_offset_32 & OSD_SRC_ADDR_HIGH7) >>
(OSD_SRCADD_ADD_SFT -
OSD_VIDWINADH_V1AH_SHIFT),
OSD_VIDWINADH);
osd_write(sd, fb_offset_32 & OSD_WINADL_MASK,
OSD_VIDWIN1ADL);
}
break;
}
}
}
static void osd_start_layer(struct osd_state *sd, enum osd_layer layer,
unsigned long fb_base_phys,
unsigned long cbcr_ofst)
{
struct osd_state *osd = sd;
struct osd_window_state *win = &osd->win[layer];
struct osd_layer_config *cfg = &win->lconfig;
unsigned long flags;
spin_lock_irqsave(&osd->lock, flags);
win->fb_base_phys = fb_base_phys & ~0x1F;
_osd_start_layer(sd, layer, fb_base_phys, cbcr_ofst);
if (layer == WIN_VID0) {
osd->pingpong =
_osd_dm6446_vid0_pingpong(sd, osd->field_inversion,
win->fb_base_phys,
cfg);
}
spin_unlock_irqrestore(&osd->lock, flags);
}
static void osd_get_layer_config(struct osd_state *sd, enum osd_layer layer,
struct osd_layer_config *lconfig)
{
struct osd_state *osd = sd;
struct osd_window_state *win = &osd->win[layer];
unsigned long flags;
spin_lock_irqsave(&osd->lock, flags);
*lconfig = win->lconfig;
spin_unlock_irqrestore(&osd->lock, flags);
}
/**
* try_layer_config() - Try a specific configuration for the layer
* @sd: ptr to struct osd_state
* @layer: layer to configure
* @lconfig: layer configuration to try
*
* If the requested lconfig is completely rejected and the value of lconfig on
* exit is the current lconfig, then try_layer_config() returns 1. Otherwise,
* try_layer_config() returns 0. A return value of 0 does not necessarily mean
* that the value of lconfig on exit is identical to the value of lconfig on
* entry, but merely that it represents a change from the current lconfig.
*/
static int try_layer_config(struct osd_state *sd, enum osd_layer layer,
struct osd_layer_config *lconfig)
{
struct osd_state *osd = sd;
struct osd_window_state *win = &osd->win[layer];
int bad_config = 0;
/* verify that the pixel format is compatible with the layer */
switch (lconfig->pixfmt) {
case PIXFMT_1BPP:
case PIXFMT_2BPP:
case PIXFMT_4BPP:
case PIXFMT_8BPP:
case PIXFMT_RGB565:
if (osd->vpbe_type == VPBE_VERSION_1)
bad_config = !is_vid_win(layer);
break;
case PIXFMT_YCBCRI:
case PIXFMT_YCRCBI:
bad_config = !is_vid_win(layer);
break;
case PIXFMT_RGB888:
if (osd->vpbe_type == VPBE_VERSION_1)
bad_config = !is_vid_win(layer);
else if ((osd->vpbe_type == VPBE_VERSION_3) ||
(osd->vpbe_type == VPBE_VERSION_2))
bad_config = !is_osd_win(layer);
break;
case PIXFMT_NV12:
if (osd->vpbe_type != VPBE_VERSION_2)
bad_config = 1;
else
bad_config = is_osd_win(layer);
break;
case PIXFMT_OSD_ATTR:
bad_config = (layer != WIN_OSD1);
break;
default:
bad_config = 1;
break;
}
if (bad_config) {
/*
* The requested pixel format is incompatible with the layer,
* so keep the current layer configuration.
*/
*lconfig = win->lconfig;
return bad_config;
}
/* DM6446: */
/* only one OSD window at a time can use RGB pixel formats */
if ((osd->vpbe_type == VPBE_VERSION_1) &&
is_osd_win(layer) && is_rgb_pixfmt(lconfig->pixfmt)) {
enum osd_pix_format pixfmt;
if (layer == WIN_OSD0)
pixfmt = osd->win[WIN_OSD1].lconfig.pixfmt;
else
pixfmt = osd->win[WIN_OSD0].lconfig.pixfmt;
if (is_rgb_pixfmt(pixfmt)) {
/*
* The other OSD window is already configured for an
* RGB, so keep the current layer configuration.
*/
*lconfig = win->lconfig;
return 1;
}
}
/* DM6446: only one video window at a time can use RGB888 */
if ((osd->vpbe_type == VPBE_VERSION_1) && is_vid_win(layer) &&
lconfig->pixfmt == PIXFMT_RGB888) {
enum osd_pix_format pixfmt;
if (layer == WIN_VID0)
pixfmt = osd->win[WIN_VID1].lconfig.pixfmt;
else
pixfmt = osd->win[WIN_VID0].lconfig.pixfmt;
if (pixfmt == PIXFMT_RGB888) {
/*
* The other video window is already configured for
* RGB888, so keep the current layer configuration.
*/
*lconfig = win->lconfig;
return 1;
}
}
/* window dimensions must be non-zero */
if (!lconfig->line_length || !lconfig->xsize || !lconfig->ysize) {
*lconfig = win->lconfig;
return 1;
}
/* round line_length up to a multiple of 32 */
lconfig->line_length = ((lconfig->line_length + 31) / 32) * 32;
lconfig->line_length =
min(lconfig->line_length, (unsigned)MAX_LINE_LENGTH);
lconfig->xsize = min(lconfig->xsize, (unsigned)MAX_WIN_SIZE);
lconfig->ysize = min(lconfig->ysize, (unsigned)MAX_WIN_SIZE);
lconfig->xpos = min(lconfig->xpos, (unsigned)MAX_WIN_SIZE);
lconfig->ypos = min(lconfig->ypos, (unsigned)MAX_WIN_SIZE);
lconfig->interlaced = (lconfig->interlaced != 0);
if (lconfig->interlaced) {
/* ysize and ypos must be even for interlaced displays */
lconfig->ysize &= ~1;
lconfig->ypos &= ~1;
}
return 0;
}
static void _osd_disable_vid_rgb888(struct osd_state *sd)
{
/*
* The DM6446 supports RGB888 pixel format in a single video window.
* This routine disables RGB888 pixel format for both video windows.
* The caller must ensure that neither video window is currently
* configured for RGB888 pixel format.
*/
if (sd->vpbe_type == VPBE_VERSION_1)
osd_clear(sd, OSD_MISCCTL_RGBEN, OSD_MISCCTL);
}
static void _osd_enable_vid_rgb888(struct osd_state *sd,
enum osd_layer layer)
{
/*
* The DM6446 supports RGB888 pixel format in a single video window.
* This routine enables RGB888 pixel format for the specified video
* window. The caller must ensure that the other video window is not
* currently configured for RGB888 pixel format, as this routine will
* disable RGB888 pixel format for the other window.
*/
if (sd->vpbe_type == VPBE_VERSION_1) {
if (layer == WIN_VID0)
osd_modify(sd, OSD_MISCCTL_RGBEN | OSD_MISCCTL_RGBWIN,
OSD_MISCCTL_RGBEN, OSD_MISCCTL);
else if (layer == WIN_VID1)
osd_modify(sd, OSD_MISCCTL_RGBEN | OSD_MISCCTL_RGBWIN,
OSD_MISCCTL_RGBEN | OSD_MISCCTL_RGBWIN,
OSD_MISCCTL);
}
}
static void _osd_set_cbcr_order(struct osd_state *sd,
enum osd_pix_format pixfmt)
{
/*
* The caller must ensure that all windows using YC pixfmt use the same
* Cb/Cr order.
*/
if (pixfmt == PIXFMT_YCBCRI)
osd_clear(sd, OSD_MODE_CS, OSD_MODE);
else if (pixfmt == PIXFMT_YCRCBI)
osd_set(sd, OSD_MODE_CS, OSD_MODE);
}
static void _osd_set_layer_config(struct osd_state *sd, enum osd_layer layer,
const struct osd_layer_config *lconfig)
{
u32 winmd = 0, winmd_mask = 0, bmw = 0;
_osd_set_cbcr_order(sd, lconfig->pixfmt);
switch (layer) {
case WIN_OSD0:
if (sd->vpbe_type == VPBE_VERSION_1) {
winmd_mask |= OSD_OSDWIN0MD_RGB0E;
if (lconfig->pixfmt == PIXFMT_RGB565)
winmd |= OSD_OSDWIN0MD_RGB0E;
} else if ((sd->vpbe_type == VPBE_VERSION_3) ||
(sd->vpbe_type == VPBE_VERSION_2)) {
winmd_mask |= OSD_OSDWIN0MD_BMP0MD;
switch (lconfig->pixfmt) {
case PIXFMT_RGB565:
winmd |= (1 <<
OSD_OSDWIN0MD_BMP0MD_SHIFT);
break;
case PIXFMT_RGB888:
winmd |= (2 << OSD_OSDWIN0MD_BMP0MD_SHIFT);
_osd_enable_rgb888_pixblend(sd, OSDWIN_OSD0);
break;
case PIXFMT_YCBCRI:
case PIXFMT_YCRCBI:
winmd |= (3 << OSD_OSDWIN0MD_BMP0MD_SHIFT);
break;
default:
break;
}
}
winmd_mask |= OSD_OSDWIN0MD_BMW0 | OSD_OSDWIN0MD_OFF0;
switch (lconfig->pixfmt) {
case PIXFMT_1BPP:
bmw = 0;
break;
case PIXFMT_2BPP:
bmw = 1;
break;
case PIXFMT_4BPP:
bmw = 2;
break;
case PIXFMT_8BPP:
bmw = 3;
break;
default:
break;
}
winmd |= (bmw << OSD_OSDWIN0MD_BMW0_SHIFT);
if (lconfig->interlaced)
winmd |= OSD_OSDWIN0MD_OFF0;
osd_modify(sd, winmd_mask, winmd, OSD_OSDWIN0MD);
osd_write(sd, lconfig->line_length >> 5, OSD_OSDWIN0OFST);
osd_write(sd, lconfig->xpos, OSD_OSDWIN0XP);
osd_write(sd, lconfig->xsize, OSD_OSDWIN0XL);
if (lconfig->interlaced) {
osd_write(sd, lconfig->ypos >> 1, OSD_OSDWIN0YP);
osd_write(sd, lconfig->ysize >> 1, OSD_OSDWIN0YL);
} else {
osd_write(sd, lconfig->ypos, OSD_OSDWIN0YP);
osd_write(sd, lconfig->ysize, OSD_OSDWIN0YL);
}
break;
case WIN_VID0:
winmd_mask |= OSD_VIDWINMD_VFF0;
if (lconfig->interlaced)
winmd |= OSD_VIDWINMD_VFF0;
osd_modify(sd, winmd_mask, winmd, OSD_VIDWINMD);
osd_write(sd, lconfig->line_length >> 5, OSD_VIDWIN0OFST);
osd_write(sd, lconfig->xpos, OSD_VIDWIN0XP);
osd_write(sd, lconfig->xsize, OSD_VIDWIN0XL);
/*
* For YUV420P format the register contents are
* duplicated in both VID registers
*/
if ((sd->vpbe_type == VPBE_VERSION_2) &&
(lconfig->pixfmt == PIXFMT_NV12)) {
/* other window also */
if (lconfig->interlaced) {
winmd_mask |= OSD_VIDWINMD_VFF1;
winmd |= OSD_VIDWINMD_VFF1;
osd_modify(sd, winmd_mask, winmd,
OSD_VIDWINMD);
}
osd_modify(sd, OSD_MISCCTL_S420D,
OSD_MISCCTL_S420D, OSD_MISCCTL);
osd_write(sd, lconfig->line_length >> 5,
OSD_VIDWIN1OFST);
osd_write(sd, lconfig->xpos, OSD_VIDWIN1XP);
osd_write(sd, lconfig->xsize, OSD_VIDWIN1XL);
/*
* if NV21 pixfmt and line length not 32B
* aligned (e.g. NTSC), Need to set window
* X pixel size to be 32B aligned as well
*/
if (lconfig->xsize % 32) {
osd_write(sd,
((lconfig->xsize + 31) & ~31),
OSD_VIDWIN1XL);
osd_write(sd,
((lconfig->xsize + 31) & ~31),
OSD_VIDWIN0XL);
}
} else if ((sd->vpbe_type == VPBE_VERSION_2) &&
(lconfig->pixfmt != PIXFMT_NV12)) {
osd_modify(sd, OSD_MISCCTL_S420D, ~OSD_MISCCTL_S420D,
OSD_MISCCTL);
}
if (lconfig->interlaced) {
osd_write(sd, lconfig->ypos >> 1, OSD_VIDWIN0YP);
osd_write(sd, lconfig->ysize >> 1, OSD_VIDWIN0YL);
if ((sd->vpbe_type == VPBE_VERSION_2) &&
lconfig->pixfmt == PIXFMT_NV12) {
osd_write(sd, lconfig->ypos >> 1,
OSD_VIDWIN1YP);
osd_write(sd, lconfig->ysize >> 1,
OSD_VIDWIN1YL);
}
} else {
osd_write(sd, lconfig->ypos, OSD_VIDWIN0YP);
osd_write(sd, lconfig->ysize, OSD_VIDWIN0YL);
if ((sd->vpbe_type == VPBE_VERSION_2) &&
lconfig->pixfmt == PIXFMT_NV12) {
osd_write(sd, lconfig->ypos, OSD_VIDWIN1YP);
osd_write(sd, lconfig->ysize, OSD_VIDWIN1YL);
}
}
break;
case WIN_OSD1:
/*
* The caller must ensure that OSD1 is disabled prior to
* switching from a normal mode to attribute mode or from
* attribute mode to a normal mode.
*/
if (lconfig->pixfmt == PIXFMT_OSD_ATTR) {
if (sd->vpbe_type == VPBE_VERSION_1) {
winmd_mask |= OSD_OSDWIN1MD_ATN1E |
OSD_OSDWIN1MD_RGB1E | OSD_OSDWIN1MD_CLUTS1 |
OSD_OSDWIN1MD_BLND1 | OSD_OSDWIN1MD_TE1;
} else {
winmd_mask |= OSD_OSDWIN1MD_BMP1MD |
OSD_OSDWIN1MD_CLUTS1 | OSD_OSDWIN1MD_BLND1 |
OSD_OSDWIN1MD_TE1;
}
} else {
if (sd->vpbe_type == VPBE_VERSION_1) {
winmd_mask |= OSD_OSDWIN1MD_RGB1E;
if (lconfig->pixfmt == PIXFMT_RGB565)
winmd |= OSD_OSDWIN1MD_RGB1E;
} else if ((sd->vpbe_type == VPBE_VERSION_3)
|| (sd->vpbe_type == VPBE_VERSION_2)) {
winmd_mask |= OSD_OSDWIN1MD_BMP1MD;
switch (lconfig->pixfmt) {
case PIXFMT_RGB565:
winmd |=
(1 << OSD_OSDWIN1MD_BMP1MD_SHIFT);
break;
case PIXFMT_RGB888:
winmd |=
(2 << OSD_OSDWIN1MD_BMP1MD_SHIFT);
_osd_enable_rgb888_pixblend(sd,
OSDWIN_OSD1);
break;
case PIXFMT_YCBCRI:
case PIXFMT_YCRCBI:
winmd |=
(3 << OSD_OSDWIN1MD_BMP1MD_SHIFT);
break;
default:
break;
}
}
winmd_mask |= OSD_OSDWIN1MD_BMW1;
switch (lconfig->pixfmt) {
case PIXFMT_1BPP:
bmw = 0;
break;
case PIXFMT_2BPP:
bmw = 1;
break;
case PIXFMT_4BPP:
bmw = 2;
break;
case PIXFMT_8BPP:
bmw = 3;
break;
default:
break;
}
winmd |= (bmw << OSD_OSDWIN1MD_BMW1_SHIFT);
}
winmd_mask |= OSD_OSDWIN1MD_OFF1;
if (lconfig->interlaced)
winmd |= OSD_OSDWIN1MD_OFF1;
osd_modify(sd, winmd_mask, winmd, OSD_OSDWIN1MD);
osd_write(sd, lconfig->line_length >> 5, OSD_OSDWIN1OFST);
osd_write(sd, lconfig->xpos, OSD_OSDWIN1XP);
osd_write(sd, lconfig->xsize, OSD_OSDWIN1XL);
if (lconfig->interlaced) {
osd_write(sd, lconfig->ypos >> 1, OSD_OSDWIN1YP);
osd_write(sd, lconfig->ysize >> 1, OSD_OSDWIN1YL);
} else {
osd_write(sd, lconfig->ypos, OSD_OSDWIN1YP);
osd_write(sd, lconfig->ysize, OSD_OSDWIN1YL);
}
break;
case WIN_VID1:
winmd_mask |= OSD_VIDWINMD_VFF1;
if (lconfig->interlaced)
winmd |= OSD_VIDWINMD_VFF1;
osd_modify(sd, winmd_mask, winmd, OSD_VIDWINMD);
osd_write(sd, lconfig->line_length >> 5, OSD_VIDWIN1OFST);
osd_write(sd, lconfig->xpos, OSD_VIDWIN1XP);
osd_write(sd, lconfig->xsize, OSD_VIDWIN1XL);
/*
* For YUV420P format the register contents are
* duplicated in both VID registers
*/
if (sd->vpbe_type == VPBE_VERSION_2) {
if (lconfig->pixfmt == PIXFMT_NV12) {
/* other window also */
if (lconfig->interlaced) {
winmd_mask |= OSD_VIDWINMD_VFF0;
winmd |= OSD_VIDWINMD_VFF0;
osd_modify(sd, winmd_mask, winmd,
OSD_VIDWINMD);
}
osd_modify(sd, OSD_MISCCTL_S420D,
OSD_MISCCTL_S420D, OSD_MISCCTL);
osd_write(sd, lconfig->line_length >> 5,
OSD_VIDWIN0OFST);
osd_write(sd, lconfig->xpos, OSD_VIDWIN0XP);
osd_write(sd, lconfig->xsize, OSD_VIDWIN0XL);
} else {
osd_modify(sd, OSD_MISCCTL_S420D,
~OSD_MISCCTL_S420D, OSD_MISCCTL);
}
}
if (lconfig->interlaced) {
osd_write(sd, lconfig->ypos >> 1, OSD_VIDWIN1YP);
osd_write(sd, lconfig->ysize >> 1, OSD_VIDWIN1YL);
if ((sd->vpbe_type == VPBE_VERSION_2) &&
lconfig->pixfmt == PIXFMT_NV12) {
osd_write(sd, lconfig->ypos >> 1,
OSD_VIDWIN0YP);
osd_write(sd, lconfig->ysize >> 1,
OSD_VIDWIN0YL);
}
} else {
osd_write(sd, lconfig->ypos, OSD_VIDWIN1YP);
osd_write(sd, lconfig->ysize, OSD_VIDWIN1YL);
if ((sd->vpbe_type == VPBE_VERSION_2) &&
lconfig->pixfmt == PIXFMT_NV12) {
osd_write(sd, lconfig->ypos, OSD_VIDWIN0YP);
osd_write(sd, lconfig->ysize, OSD_VIDWIN0YL);
}
}
break;
}
}
static int osd_set_layer_config(struct osd_state *sd, enum osd_layer layer,
struct osd_layer_config *lconfig)
{
struct osd_state *osd = sd;
struct osd_window_state *win = &osd->win[layer];
struct osd_layer_config *cfg = &win->lconfig;
unsigned long flags;
int reject_config;
spin_lock_irqsave(&osd->lock, flags);
reject_config = try_layer_config(sd, layer, lconfig);
if (reject_config) {
spin_unlock_irqrestore(&osd->lock, flags);
return reject_config;
}
/* update the current Cb/Cr order */
if (is_yc_pixfmt(lconfig->pixfmt))
osd->yc_pixfmt = lconfig->pixfmt;
/*
* If we are switching OSD1 from normal mode to attribute mode or from
* attribute mode to normal mode, then we must disable the window.
*/
if (layer == WIN_OSD1) {
if (((lconfig->pixfmt == PIXFMT_OSD_ATTR) &&
(cfg->pixfmt != PIXFMT_OSD_ATTR)) ||
((lconfig->pixfmt != PIXFMT_OSD_ATTR) &&
(cfg->pixfmt == PIXFMT_OSD_ATTR))) {
win->is_enabled = 0;
_osd_disable_layer(sd, layer);
}
}
_osd_set_layer_config(sd, layer, lconfig);
if (layer == WIN_OSD1) {
struct osd_osdwin_state *osdwin_state =
&osd->osdwin[OSDWIN_OSD1];
if ((lconfig->pixfmt != PIXFMT_OSD_ATTR) &&
(cfg->pixfmt == PIXFMT_OSD_ATTR)) {
/*
* We just switched OSD1 from attribute mode to normal
* mode, so we must initialize the CLUT select, the
* blend factor, transparency colorkey enable, and
* attenuation enable (DM6446 only) bits in the
* OSDWIN1MD register.
*/
_osd_set_osd_clut(sd, OSDWIN_OSD1,
osdwin_state->clut);
_osd_set_blending_factor(sd, OSDWIN_OSD1,
osdwin_state->blend);
if (osdwin_state->colorkey_blending) {
_osd_enable_color_key(sd, OSDWIN_OSD1,
osdwin_state->
colorkey,
lconfig->pixfmt);
} else
_osd_disable_color_key(sd, OSDWIN_OSD1);
_osd_set_rec601_attenuation(sd, OSDWIN_OSD1,
osdwin_state->
rec601_attenuation);
} else if ((lconfig->pixfmt == PIXFMT_OSD_ATTR) &&
(cfg->pixfmt != PIXFMT_OSD_ATTR)) {
/*
* We just switched OSD1 from normal mode to attribute
* mode, so we must initialize the blink enable and
* blink interval bits in the OSDATRMD register.
*/
_osd_set_blink_attribute(sd, osd->is_blinking,
osd->blink);
}
}
/*
* If we just switched to a 1-, 2-, or 4-bits-per-pixel bitmap format
* then configure a default palette map.
*/
if ((lconfig->pixfmt != cfg->pixfmt) &&
((lconfig->pixfmt == PIXFMT_1BPP) ||
(lconfig->pixfmt == PIXFMT_2BPP) ||
(lconfig->pixfmt == PIXFMT_4BPP))) {
enum osd_win_layer osdwin =
((layer == WIN_OSD0) ? OSDWIN_OSD0 : OSDWIN_OSD1);
struct osd_osdwin_state *osdwin_state =
&osd->osdwin[osdwin];
unsigned char clut_index;
unsigned char clut_entries = 0;
switch (lconfig->pixfmt) {
case PIXFMT_1BPP:
clut_entries = 2;
break;
case PIXFMT_2BPP:
clut_entries = 4;
break;
case PIXFMT_4BPP:
clut_entries = 16;
break;
default:
break;
}
/*
* The default palette map maps the pixel value to the clut
* index, i.e. pixel value 0 maps to clut entry 0, pixel value
* 1 maps to clut entry 1, etc.
*/
for (clut_index = 0; clut_index < 16; clut_index++) {
osdwin_state->palette_map[clut_index] = clut_index;
if (clut_index < clut_entries) {
_osd_set_palette_map(sd, osdwin, clut_index,
clut_index,
lconfig->pixfmt);
}
}
}
*cfg = *lconfig;
/* DM6446: configure the RGB888 enable and window selection */
if (osd->win[WIN_VID0].lconfig.pixfmt == PIXFMT_RGB888)
_osd_enable_vid_rgb888(sd, WIN_VID0);
else if (osd->win[WIN_VID1].lconfig.pixfmt == PIXFMT_RGB888)
_osd_enable_vid_rgb888(sd, WIN_VID1);
else
_osd_disable_vid_rgb888(sd);
if (layer == WIN_VID0) {
osd->pingpong =
_osd_dm6446_vid0_pingpong(sd, osd->field_inversion,
win->fb_base_phys,
cfg);
}
spin_unlock_irqrestore(&osd->lock, flags);
return 0;
}
static void osd_init_layer(struct osd_state *sd, enum osd_layer layer)
{
struct osd_state *osd = sd;
struct osd_window_state *win = &osd->win[layer];
enum osd_win_layer osdwin;
struct osd_osdwin_state *osdwin_state;
struct osd_layer_config *cfg = &win->lconfig;
unsigned long flags;
spin_lock_irqsave(&osd->lock, flags);
win->is_enabled = 0;
_osd_disable_layer(sd, layer);
win->h_zoom = ZOOM_X1;
win->v_zoom = ZOOM_X1;
_osd_set_zoom(sd, layer, win->h_zoom, win->v_zoom);
win->fb_base_phys = 0;
_osd_start_layer(sd, layer, win->fb_base_phys, 0);
cfg->line_length = 0;
cfg->xsize = 0;
cfg->ysize = 0;
cfg->xpos = 0;
cfg->ypos = 0;
cfg->interlaced = 0;
switch (layer) {
case WIN_OSD0:
case WIN_OSD1:
osdwin = (layer == WIN_OSD0) ? OSDWIN_OSD0 : OSDWIN_OSD1;
osdwin_state = &osd->osdwin[osdwin];
/*
* Other code relies on the fact that OSD windows default to a
* bitmap pixel format when they are deallocated, so don't
* change this default pixel format.
*/
cfg->pixfmt = PIXFMT_8BPP;
_osd_set_layer_config(sd, layer, cfg);
osdwin_state->clut = RAM_CLUT;
_osd_set_osd_clut(sd, osdwin, osdwin_state->clut);
osdwin_state->colorkey_blending = 0;
_osd_disable_color_key(sd, osdwin);
osdwin_state->blend = OSD_8_VID_0;
_osd_set_blending_factor(sd, osdwin, osdwin_state->blend);
osdwin_state->rec601_attenuation = 0;
_osd_set_rec601_attenuation(sd, osdwin,
osdwin_state->
rec601_attenuation);
if (osdwin == OSDWIN_OSD1) {
osd->is_blinking = 0;
osd->blink = BLINK_X1;
}
break;
case WIN_VID0:
case WIN_VID1:
cfg->pixfmt = osd->yc_pixfmt;
_osd_set_layer_config(sd, layer, cfg);
break;
}
spin_unlock_irqrestore(&osd->lock, flags);
}
static void osd_release_layer(struct osd_state *sd, enum osd_layer layer)
{
struct osd_state *osd = sd;
struct osd_window_state *win = &osd->win[layer];
unsigned long flags;
spin_lock_irqsave(&osd->lock, flags);
if (!win->is_allocated) {
spin_unlock_irqrestore(&osd->lock, flags);
return;
}
spin_unlock_irqrestore(&osd->lock, flags);
osd_init_layer(sd, layer);
spin_lock_irqsave(&osd->lock, flags);
win->is_allocated = 0;
spin_unlock_irqrestore(&osd->lock, flags);
}
static int osd_request_layer(struct osd_state *sd, enum osd_layer layer)
{
struct osd_state *osd = sd;
struct osd_window_state *win = &osd->win[layer];
unsigned long flags;
spin_lock_irqsave(&osd->lock, flags);
if (win->is_allocated) {
spin_unlock_irqrestore(&osd->lock, flags);
return -1;
}
win->is_allocated = 1;
spin_unlock_irqrestore(&osd->lock, flags);
return 0;
}
static void _osd_init(struct osd_state *sd)
{
osd_write(sd, 0, OSD_MODE);
osd_write(sd, 0, OSD_VIDWINMD);
osd_write(sd, 0, OSD_OSDWIN0MD);
osd_write(sd, 0, OSD_OSDWIN1MD);
osd_write(sd, 0, OSD_RECTCUR);
osd_write(sd, 0, OSD_MISCCTL);
if (sd->vpbe_type == VPBE_VERSION_3) {
osd_write(sd, 0, OSD_VBNDRY);
osd_write(sd, 0, OSD_EXTMODE);
osd_write(sd, OSD_MISCCTL_DMANG, OSD_MISCCTL);
}
}
static void osd_set_left_margin(struct osd_state *sd, u32 val)
{
osd_write(sd, val, OSD_BASEPX);
}
static void osd_set_top_margin(struct osd_state *sd, u32 val)
{
osd_write(sd, val, OSD_BASEPY);
}
static int osd_initialize(struct osd_state *osd)
{
if (osd == NULL)
return -ENODEV;
_osd_init(osd);
/* set default Cb/Cr order */
osd->yc_pixfmt = PIXFMT_YCBCRI;
if (osd->vpbe_type == VPBE_VERSION_3) {
/*
* ROM CLUT1 on the DM355 is similar (identical?) to ROM CLUT0
* on the DM6446, so make ROM_CLUT1 the default on the DM355.
*/
osd->rom_clut = ROM_CLUT1;
}
_osd_set_field_inversion(osd, osd->field_inversion);
_osd_set_rom_clut(osd, osd->rom_clut);
osd_init_layer(osd, WIN_OSD0);
osd_init_layer(osd, WIN_VID0);
osd_init_layer(osd, WIN_OSD1);
osd_init_layer(osd, WIN_VID1);
return 0;
}
static const struct vpbe_osd_ops osd_ops = {
.initialize = osd_initialize,
.request_layer = osd_request_layer,
.release_layer = osd_release_layer,
.enable_layer = osd_enable_layer,
.disable_layer = osd_disable_layer,
.set_layer_config = osd_set_layer_config,
.get_layer_config = osd_get_layer_config,
.start_layer = osd_start_layer,
.set_left_margin = osd_set_left_margin,
.set_top_margin = osd_set_top_margin,
};
static int osd_probe(struct platform_device *pdev)
{
const struct platform_device_id *pdev_id;
struct osd_state *osd;
struct resource *res;
pdev_id = platform_get_device_id(pdev);
if (!pdev_id)
return -EINVAL;
osd = devm_kzalloc(&pdev->dev, sizeof(struct osd_state), GFP_KERNEL);
if (osd == NULL)
return -ENOMEM;
osd->dev = &pdev->dev;
osd->vpbe_type = pdev_id->driver_data;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
osd->osd_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(osd->osd_base))
return PTR_ERR(osd->osd_base);
osd->osd_base_phys = res->start;
osd->osd_size = resource_size(res);
spin_lock_init(&osd->lock);
osd->ops = osd_ops;
platform_set_drvdata(pdev, osd);
dev_notice(osd->dev, "OSD sub device probe success\n");
return 0;
}
static int osd_remove(struct platform_device *pdev)
{
return 0;
}
static struct platform_driver osd_driver = {
.probe = osd_probe,
.remove = osd_remove,
.driver = {
.name = MODULE_NAME,
},
.id_table = vpbe_osd_devtype
};
module_platform_driver(osd_driver);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("DaVinci OSD Manager Driver");
MODULE_AUTHOR("Texas Instruments");