/**
* s3c_fb_set_par() - framebuffer request to set new framebuffer state.
* @info: The framebuffer to change.
*
* Framebuffer layer request to set a new mode for the specified framebuffer
*/
static int s3c_fb_set_par(struct fb_info *info)
{
struct fb_var_screeninfo *var = &info->var;
struct s3c_fb_win *win = info->par;
struct s3c_fb *sfb = win->parent;
void __iomem *regs = sfb->regs;
int win_no = win->index;
u32 osdc_data = 0;
u32 data;
u32 pagewidth;
int clkdiv;
dev_dbg(sfb->dev, "setting framebuffer parameters\n");
switch (var->bits_per_pixel) {
case 32:
case 24:
case 16:
case 12:
info->fix.visual = FB_VISUAL_TRUECOLOR;
break;
case 8:
if (s3c_fb_win_has_palette(win_no, 8))
info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
else
info->fix.visual = FB_VISUAL_TRUECOLOR;
break;
case 1:
info->fix.visual = FB_VISUAL_MONO01;
break;
default:
info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
break;
}
info->fix.line_length = (var->xres_virtual * var->bits_per_pixel) / 8;
/* disable the window whilst we update it */
writel(0, regs + WINCON(win_no));
/* use window 0 as the basis for the lcd output timings */
if (win_no == 0) {
clkdiv = s3c_fb_calc_pixclk(sfb, var->pixclock);
data = sfb->pdata->vidcon0;
data &= ~(VIDCON0_CLKVAL_F_MASK | VIDCON0_CLKDIR);
if (clkdiv > 1)
data |= VIDCON0_CLKVAL_F(clkdiv-1) | VIDCON0_CLKDIR;
else
data &= ~VIDCON0_CLKDIR; /* 1:1 clock */
/* write the timing data to the panel */
data |= VIDCON0_ENVID | VIDCON0_ENVID_F;
writel(data, regs + VIDCON0);
data = VIDTCON0_VBPD(var->upper_margin - 1) |
VIDTCON0_VFPD(var->lower_margin - 1) |
VIDTCON0_VSPW(var->vsync_len - 1);
writel(data, regs + VIDTCON0);
data = VIDTCON1_HBPD(var->left_margin - 1) |
VIDTCON1_HFPD(var->right_margin - 1) |
VIDTCON1_HSPW(var->hsync_len - 1);
writel(data, regs + VIDTCON1);
data = VIDTCON2_LINEVAL(var->yres - 1) |
VIDTCON2_HOZVAL(var->xres - 1);
writel(data, regs + VIDTCON2);
}
/* write the buffer address */
writel(info->fix.smem_start, regs + VIDW_BUF_START(win_no));
data = info->fix.smem_start + info->fix.line_length * var->yres;
writel(data, regs + VIDW_BUF_END(win_no));
pagewidth = (var->xres * var->bits_per_pixel) >> 3;
data = VIDW_BUF_SIZE_OFFSET(info->fix.line_length - pagewidth) |
VIDW_BUF_SIZE_PAGEWIDTH(pagewidth);
writel(data, regs + VIDW_BUF_SIZE(win_no));
/* write 'OSD' registers to control position of framebuffer */
data = VIDOSDxA_TOPLEFT_X(0) | VIDOSDxA_TOPLEFT_Y(0);
writel(data, regs + VIDOSD_A(win_no));
data = VIDOSDxB_BOTRIGHT_X(s3c_fb_align_word(var->bits_per_pixel,
var->xres - 1)) |
VIDOSDxB_BOTRIGHT_Y(var->yres - 1);
writel(data, regs + VIDOSD_B(win_no));
data = var->xres * var->yres;
osdc_data = VIDISD14C_ALPHA1_R(0xf) |
VIDISD14C_ALPHA1_G(0xf) |
VIDISD14C_ALPHA1_B(0xf);
if (s3c_fb_has_osd_d(win_no)) {
writel(data, regs + VIDOSD_D(win_no));
writel(osdc_data, regs + VIDOSD_C(win_no));
} else
writel(data, regs + VIDOSD_C(win_no));
data = WINCONx_ENWIN;
/* note, since we have to round up the bits-per-pixel, we end up
* relying on the bitfield information for r/g/b/a to work out
* exactly which mode of operation is intended. */
switch (var->bits_per_pixel) {
case 1:
data |= WINCON0_BPPMODE_1BPP;
data |= WINCONx_BITSWP;
data |= WINCONx_BURSTLEN_4WORD;
break;
case 2:
data |= WINCON0_BPPMODE_2BPP;
data |= WINCONx_BITSWP;
data |= WINCONx_BURSTLEN_8WORD;
break;
case 4:
data |= WINCON0_BPPMODE_4BPP;
data |= WINCONx_BITSWP;
data |= WINCONx_BURSTLEN_8WORD;
break;
case 8:
if (var->transp.length != 0)
data |= WINCON1_BPPMODE_8BPP_1232;
else
data |= WINCON0_BPPMODE_8BPP_PALETTE;
data |= WINCONx_BURSTLEN_8WORD;
data |= WINCONx_BYTSWP;
break;
case 16:
if (var->transp.length != 0)
data |= WINCON1_BPPMODE_16BPP_A1555;
else
data |= WINCON0_BPPMODE_16BPP_565;
data |= WINCONx_HAWSWP;
data |= WINCONx_BURSTLEN_16WORD;
break;
case 24:
case 32:
if (var->red.length == 6) {
if (var->transp.length != 0)
data |= WINCON1_BPPMODE_19BPP_A1666;
else
data |= WINCON1_BPPMODE_18BPP_666;
} else if (var->transp.length == 1)
data |= WINCON1_BPPMODE_25BPP_A1888
| WINCON1_BLD_PIX;
else if (var->transp.length == 4)
data |= WINCON1_BPPMODE_28BPP_A4888
| WINCON1_BLD_PIX | WINCON1_ALPHA_SEL;
else
data |= WINCON0_BPPMODE_24BPP_888;
data |= WINCONx_BURSTLEN_16WORD;
break;
}
/* It has no color key control register for window0 */
if (win_no > 0) {
u32 keycon0_data = 0, keycon1_data = 0;
keycon0_data = ~(WxKEYCON0_KEYBL_EN |
WxKEYCON0_KEYEN_F |
WxKEYCON0_DIRCON) | WxKEYCON0_COMPKEY(0);
keycon1_data = WxKEYCON1_COLVAL(0xffffff);
writel(keycon0_data, regs + WxKEYCONy(win_no-1, 0));
writel(keycon1_data, regs + WxKEYCONy(win_no-1, 1));
}
writel(data, regs + WINCON(win_no));
writel(0x0, regs + WINxMAP(win_no));
return 0;
}
/**
* s3c_fb_set_par() - framebuffer request to set new framebuffer state.
* @info: The framebuffer to change.
*
* Framebuffer layer request to set a new mode for the specified framebuffer
*/
static int s3c_fb_set_par(struct fb_info *info)
{
struct fb_var_screeninfo *var = &info->var;
struct s3c_fb_win *win = info->par;
struct s3c_fb *sfb = win->parent;
void __iomem *regs = sfb->regs;
void __iomem *buf = regs;
int win_no = win->index;
u32 alpha = 0;
u32 data;
u32 pagewidth;
dev_dbg(sfb->dev, "setting framebuffer parameters\n");
pm_runtime_get_sync(sfb->dev);
shadow_protect_win(win, 1);
switch (var->bits_per_pixel) {
case 32:
case 24:
case 16:
case 12:
info->fix.visual = FB_VISUAL_TRUECOLOR;
break;
case 8:
if (win->variant.palette_sz >= 256)
info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
else
info->fix.visual = FB_VISUAL_TRUECOLOR;
break;
case 1:
info->fix.visual = FB_VISUAL_MONO01;
break;
default:
info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
break;
}
info->fix.line_length = (var->xres_virtual * var->bits_per_pixel) / 8;
info->fix.xpanstep = info->var.xres_virtual > info->var.xres ? 1 : 0;
info->fix.ypanstep = info->var.yres_virtual > info->var.yres ? 1 : 0;
/* disable the window whilst we update it */
writel(0, regs + WINCON(win_no));
if (!sfb->output_on)
s3c_fb_enable(sfb, 1);
/* write the buffer address */
/* start and end registers stride is 8 */
buf = regs + win_no * 8;
writel(info->fix.smem_start, buf + sfb->variant.buf_start);
data = info->fix.smem_start + info->fix.line_length * var->yres;
writel(data, buf + sfb->variant.buf_end);
pagewidth = (var->xres * var->bits_per_pixel) >> 3;
data = VIDW_BUF_SIZE_OFFSET(info->fix.line_length - pagewidth) |
VIDW_BUF_SIZE_PAGEWIDTH(pagewidth) |
VIDW_BUF_SIZE_OFFSET_E(info->fix.line_length - pagewidth) |
VIDW_BUF_SIZE_PAGEWIDTH_E(pagewidth);
writel(data, regs + sfb->variant.buf_size + (win_no * 4));
/* write 'OSD' registers to control position of framebuffer */
data = VIDOSDxA_TOPLEFT_X(0) | VIDOSDxA_TOPLEFT_Y(0) |
VIDOSDxA_TOPLEFT_X_E(0) | VIDOSDxA_TOPLEFT_Y_E(0);
writel(data, regs + VIDOSD_A(win_no, sfb->variant));
data = VIDOSDxB_BOTRIGHT_X(s3c_fb_align_word(var->bits_per_pixel,
var->xres - 1)) |
VIDOSDxB_BOTRIGHT_Y(var->yres - 1) |
VIDOSDxB_BOTRIGHT_X_E(s3c_fb_align_word(var->bits_per_pixel,
var->xres - 1)) |
VIDOSDxB_BOTRIGHT_Y_E(var->yres - 1);
writel(data, regs + VIDOSD_B(win_no, sfb->variant));
data = var->xres * var->yres;
alpha = VIDISD14C_ALPHA1_R(0xf) |
VIDISD14C_ALPHA1_G(0xf) |
VIDISD14C_ALPHA1_B(0xf);
vidosd_set_alpha(win, alpha);
vidosd_set_size(win, data);
/* Enable DMA channel for this window */
if (sfb->variant.has_shadowcon) {
data = readl(sfb->regs + SHADOWCON);
data |= SHADOWCON_CHx_ENABLE(win_no);
writel(data, sfb->regs + SHADOWCON);
}
data = WINCONx_ENWIN;
sfb->enabled |= (1 << win->index);
/* note, since we have to round up the bits-per-pixel, we end up
* relying on the bitfield information for r/g/b/a to work out
* exactly which mode of operation is intended. */
switch (var->bits_p
/**
* s3c_fb_set_par() - framebuffer request to set new framebuffer state.
* @info: The framebuffer to change.
*
* Framebuffer layer request to set a new mode for the specified framebuffer
*/
static int s3c_fb_set_par(struct fb_info *info)
{
struct fb_var_screeninfo *var = &info->var;
struct s3c_fb_win *win = info->par;
struct s3c_fb *sfb = win->parent;
void __iomem *regs = sfb->regs;
void __iomem *buf = regs;
int win_no = win->index;
u32 alpha = 0;
u32 data;
u32 pagewidth;
int clkdiv;
dev_dbg(sfb->dev, "setting framebuffer parameters\n");
shadow_protect_win(win, 1);
switch (var->bits_per_pixel) {
case 32:
case 24:
case 16:
case 12:
info->fix.visual = FB_VISUAL_TRUECOLOR;
break;
case 8:
if (win->variant.palette_sz >= 256)
info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
else
info->fix.visual = FB_VISUAL_TRUECOLOR;
break;
case 1:
info->fix.visual = FB_VISUAL_MONO01;
break;
default:
info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
break;
}
info->fix.line_length = (var->xres_virtual * var->bits_per_pixel) / 8;
info->fix.xpanstep = info->var.xres_virtual > info->var.xres ? 1 : 0;
info->fix.ypanstep = info->var.yres_virtual > info->var.yres ? 1 : 0;
/* disable the window whilst we update it */
writel(0, regs + WINCON(win_no));
/* use platform specified window as the basis for the lcd timings */
if (win_no == sfb->pdata->default_win) {
clkdiv = s3c_fb_calc_pixclk(sfb, var->pixclock);
data = sfb->pdata->vidcon0;
data &= ~(VIDCON0_CLKVAL_F_MASK | VIDCON0_CLKDIR);
if (clkdiv > 1)
data |= VIDCON0_CLKVAL_F(clkdiv-1) | VIDCON0_CLKDIR;
else
data &= ~VIDCON0_CLKDIR; /* 1:1 clock */
/* write the timing data to the panel */
if (sfb->variant.is_2443)
data |= (1 << 5);
data |= VIDCON0_ENVID | VIDCON0_ENVID_F;
writel(data, regs + VIDCON0);
data = VIDTCON0_VBPD(var->upper_margin - 1) |
VIDTCON0_VFPD(var->lower_margin - 1) |
VIDTCON0_VSPW(var->vsync_len - 1);
writel(data, regs + sfb->variant.vidtcon);
data = VIDTCON1_HBPD(var->left_margin - 1) |
VIDTCON1_HFPD(var->right_margin - 1) |
VIDTCON1_HSPW(var->hsync_len - 1);
/* VIDTCON1 */
writel(data, regs + sfb->variant.vidtcon + 4);
data = VIDTCON2_LINEVAL(var->yres - 1) |
VIDTCON2_HOZVAL(var->xres - 1);
writel(data, regs +sfb->variant.vidtcon + 8 );
}
/* write the buffer address */
/* start and end registers stride is 8 */
buf = regs + win_no * 8;
writel(info->fix.smem_start, buf + sfb->variant.buf_start);
data = info->fix.smem_start + info->fix.line_length * var->yres;
writel(data, buf + sfb->variant.buf_end);
pagewidth = (var->xres * var->bits_per_pixel) >> 3;
data = VIDW_BUF_SIZE_OFFSET(info->fix.line_length - pagewidth) |
VIDW_BUF_SIZE_PAGEWIDTH(pagewidth);
writel(data, regs + sfb->variant.buf_size + (win_no * 4));
/* write 'OSD' registers to control position of framebuffer */
data = VIDOSDxA_TOPLEFT_X(0) | VIDOSDxA_TOPLEFT_Y(0);
writel(data, regs + VIDOSD_A(win_no, sfb->variant));
data = VIDOSDxB_BOTRIGHT_X(s3c_fb_align_word(var->bits_per_pixel,
var->xres - 1)) |
VIDOSDxB_BOTRIGHT_Y(var->yres - 1);
writel(data, regs + VIDOSD_B(win_no, sfb->variant));
data = var->xres * var->yres;
alpha = VIDISD14C_ALPHA1_R(0xf) |
VIDISD14C_ALPHA1_G(0xf) |
VIDISD14C_ALPHA1_B(0xf);
vidosd_set_alpha(win, alpha);
vidosd_set_size(win, data);
data = WINCONx_ENWIN;
/* note, since we have to round up the bits-per-pixel, we end up
* relying on the bitfield information for r/g/b/a to work out
* exactly which mode of operation is intended. */
switch (var->bits_per_pixel) {
case 1:
data |= WINCON0_BPPMODE_1BPP;
data |= WINCONx_BITSWP;
data |= WINCONx_BURSTLEN_4WORD;
break;
case 2:
data |= WINCON0_BPPMODE_2BPP;
data |= WINCONx_BITSWP;
data |= WINCONx_BURSTLEN_8WORD;
break;
case 4:
data |= WINCON0_BPPMODE_4BPP;
data |= WINCONx_BITSWP;
data |= WINCONx_BURSTLEN_8WORD;
break;
case 8:
if (var->transp.length != 0)
data |= WINCON1_BPPMODE_8BPP_1232;
else
data |= WINCON0_BPPMODE_8BPP_PALETTE;
data |= WINCONx_BURSTLEN_8WORD;
data |= WINCONx_BYTSWP;
break;
case 16:
if (var->transp.length != 0)
data |= WINCON1_BPPMODE_16BPP_A1555;
else
data |= WINCON0_BPPMODE_16BPP_565;
data |= WINCONx_HAWSWP;
data |= WINCONx_BURSTLEN_16WORD;
break;
case 24:
case 32:
if (var->red.length == 6) {
if (var->transp.length != 0)
data |= WINCON1_BPPMODE_19BPP_A1666;
else
data |= WINCON1_BPPMODE_18BPP_666;
} else if (var->transp.length == 1)
data |= WINCON1_BPPMODE_25BPP_A1888
| WINCON1_BLD_PIX;
else if (var->transp.length == 4)
data |= WINCON1_BPPMODE_28BPP_A4888
| WINCON1_BLD_PIX | WINCON1_ALPHA_SEL;
else
data |= WINCON0_BPPMODE_24BPP_888;
data |= WINCONx_WSWP;
data |= WINCONx_BURSTLEN_16WORD;
break;
}
/* Enable the colour keying for the window below this one */
if (win_no > 0) {
u32 keycon0_data = 0, keycon1_data = 0;
void __iomem *keycon = regs + sfb->variant.keycon;
keycon0_data = ~(WxKEYCON0_KEYBL_EN |
WxKEYCON0_KEYEN_F |
WxKEYCON0_DIRCON) | WxKEYCON0_COMPKEY(0);
keycon1_data = WxKEYCON1_COLVAL(0xffffff);
keycon += (win_no - 1) * 8;
writel(keycon0_data, keycon + WKEYCON0);
writel(keycon1_data, keycon + WKEYCON1);
}
writel(data, regs + sfb->variant.wincon + (win_no * 4));
writel(0x0, regs + sfb->variant.winmap + (win_no * 4));
/* Enable DMA channel for this window */
if (sfb->variant.has_shadowcon) {
data = readl(sfb->regs + SHADOWCON);
data |= SHADOWCON_CHx_ENABLE(win_no);
writel(data, sfb->regs + SHADOWCON);
}
shadow_protect_win(win, 0);
return 0;
}
static int s3c_fb_set_par(struct fb_info *info)
{
struct fb_var_screeninfo *var = &info->var;
struct s3c_fb_win *win = info->par;
struct s3c_fb *sfb = win->parent;
void __iomem *regs = sfb->regs;
void __iomem *buf = regs;
int win_no = win->index;
u32 alpha = 0;
u32 data;
u32 pagewidth;
int clkdiv;
dev_dbg(sfb->dev, "setting framebuffer parameters\n");
pm_runtime_get_sync(sfb->dev);
shadow_protect_win(win, 1);
switch (var->bits_per_pixel) {
case 32:
case 24:
case 16:
case 12:
info->fix.visual = FB_VISUAL_TRUECOLOR;
break;
case 8:
if (win->variant.palette_sz >= 256)
info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
else
info->fix.visual = FB_VISUAL_TRUECOLOR;
break;
case 1:
info->fix.visual = FB_VISUAL_MONO01;
break;
default:
info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
break;
}
info->fix.line_length = (var->xres_virtual * var->bits_per_pixel) / 8;
info->fix.xpanstep = info->var.xres_virtual > info->var.xres ? 1 : 0;
info->fix.ypanstep = info->var.yres_virtual > info->var.yres ? 1 : 0;
writel(0, regs + WINCON(win_no));
if (win_no == sfb->pdata->default_win) {
clkdiv = s3c_fb_calc_pixclk(sfb, var->pixclock);
data = sfb->pdata->vidcon0;
data &= ~(VIDCON0_CLKVAL_F_MASK | VIDCON0_CLKDIR);
if (clkdiv > 1)
data |= VIDCON0_CLKVAL_F(clkdiv-1) | VIDCON0_CLKDIR;
else
data &= ~VIDCON0_CLKDIR;
if (sfb->variant.is_2443)
data |= (1 << 5);
writel(data, regs + VIDCON0);
s3c_fb_enable(sfb, 1);
data = VIDTCON0_VBPD(var->upper_margin - 1) |
VIDTCON0_VFPD(var->lower_margin - 1) |
VIDTCON0_VSPW(var->vsync_len - 1);
writel(data, regs + sfb->variant.vidtcon);
data = VIDTCON1_HBPD(var->left_margin - 1) |
VIDTCON1_HFPD(var->right_margin - 1) |
VIDTCON1_HSPW(var->hsync_len - 1);
writel(data, regs + sfb->variant.vidtcon + 4);
data = VIDTCON2_LINEVAL(var->yres - 1) |
VIDTCON2_HOZVAL(var->xres - 1) |
VIDTCON2_LINEVAL_E(var->yres - 1) |
VIDTCON2_HOZVAL_E(var->xres - 1);
writel(data, regs + sfb->variant.vidtcon + 8);
}
buf = regs + win_no * 8;
writel(info->fix.smem_start, buf + sfb->variant.buf_start);
data = info->fix.smem_start + info->fix.line_length * var->yres;
writel(data, buf + sfb->variant.buf_end);
pagewidth = (var->xres * var->bits_per_pixel) >> 3;
data = VIDW_BUF_SIZE_OFFSET(info->fix.line_length - pagewidth) |
VIDW_BUF_SIZE_PAGEWIDTH(pagewidth) |
VIDW_BUF_SIZE_OFFSET_E(info->fix.line_length - pagewidth) |
VIDW_BUF_SIZE_PAGEWIDTH_E(pagewidth);
writel(data, regs + sfb->variant.buf_size + (win_no * 4));
data = VIDOSDxA_TOPLEFT_X(0) | VIDOSDxA_TOPLEFT_Y(0) |
VIDOSDxA_TOPLEFT_X_E(0) | VIDOSDxA_TOPLEFT_Y_E(0);
writel(data, regs + VIDOSD_A(win_no, sfb->variant));
data = VIDOSDxB_BOTRIGHT_X(s3c_fb_align_word(var->bits_per_pixel,
var->xres - 1)) |
VIDOSDxB_BOTRIGHT_Y(var->yres - 1) |
VIDOSDxB_BOTRIGHT_X_E(s3c_fb_align_word(var->bits_per_pixel,
var->xres - 1)) |
VIDOSDxB_BOTRIGHT_Y_E(var->yres - 1);
writel(data, regs + VIDOSD_B(win_no, sfb->variant));
data = var->xres * var->yres;
alpha = VIDISD14C_ALPHA1_R(0xf) |
VIDISD14C_ALPHA1_G(0xf) |
VIDISD14C_ALPHA1_B(0xf);
vidosd_set_alpha(win, alpha);
vidosd_set_size(win, data);
if (sfb->variant.has_shadowcon) {
data = readl(sfb->regs + SHADOWCON);
data |= SHADOWCON_CHx_ENABLE(win_no);
writel(data, sfb->regs + SHADOWCON);
}
data = WINCONx_ENWIN;
sfb->enabled |= (1 << win->index);
switch (var->bits_per_pixel) {
case 1:
data |= WINCON0_BPPMODE_1BPP;
data |= WINCONx_BITSWP;
data |= WINCONx_BURSTLEN_4WORD;
break;
case 2:
data |= WINCON0_BPPMODE_2BPP;
data |= WINCONx_BITSWP;
data |= WINCONx_BURSTLEN_8WORD;
break;
case 4:
data |= WINCON0_BPPMODE_4BPP;
data |= WINCONx_BITSWP;
data |= WINCONx_BURSTLEN_8WORD;
break;
case 8:
if (var->transp.length != 0)
data |= WINCON1_BPPMODE_8BPP_1232;
else
data |= WINCON0_BPPMODE_8BPP_PALETTE;
data |= WINCONx_BURSTLEN_8WORD;
data |= WINCONx_BYTSWP;
break;
case 16:
if (var->transp.length != 0)
data |= WINCON1_BPPMODE_16BPP_A1555;
else
data |= WINCON0_BPPMODE_16BPP_565;
data |= WINCONx_HAWSWP;
data |= WINCONx_BURSTLEN_16WORD;
break;
case 24:
case 32:
if (var->red.length == 6) {
if (var->transp.length != 0)
data |= WINCON1_BPPMODE_19BPP_A1666;
else
data |= WINCON1_BPPMODE_18BPP_666;
} else if (var->transp.length == 1)
data |= WINCON1_BPPMODE_25BPP_A1888
| WINCON1_BLD_PIX;
else if ((var->transp.length == 4) ||
(var->transp.length == 8))
data |= WINCON1_BPPMODE_28BPP_A4888
| WINCON1_BLD_PIX | WINCON1_ALPHA_SEL;
else
data |= WINCON0_BPPMODE_24BPP_888;
data |= WINCONx_WSWP;
data |= WINCONx_BURSTLEN_16WORD;
break;
}
if (win_no > 0) {
u32 keycon0_data = 0, keycon1_data = 0;
void __iomem *keycon = regs + sfb->variant.keycon;
keycon0_data = ~(WxKEYCON0_KEYBL_EN |
WxKEYCON0_KEYEN_F |
WxKEYCON0_DIRCON) | WxKEYCON0_COMPKEY(0);
keycon1_data = WxKEYCON1_COLVAL(0xffffff);
keycon += (win_no - 1) * 8;
writel(keycon0_data, keycon + WKEYCON0);
writel(keycon1_data, keycon + WKEYCON1);
}
writel(data, regs + sfb->variant.wincon + (win_no * 4));
writel(0x0, regs + sfb->variant.winmap + (win_no * 4));
if (sfb->variant.has_blendcon) {
data = readl(sfb->regs + BLENDCON);
data &= ~BLENDCON_NEW_MASK;
if (var->transp.length > 4)
data |= BLENDCON_NEW_8BIT_ALPHA_VALUE;
else
data |= BLENDCON_NEW_4BIT_ALPHA_VALUE;
writel(data, sfb->regs + BLENDCON);
}
shadow_protect_win(win, 0);
pm_runtime_put_sync(sfb->dev);
return 0;
}
/**
* s3c_fb_set_par() - framebuffer request to set new framebuffer state.
* @info: The framebuffer to change.
*
* Framebuffer layer request to set a new mode for the specified framebuffer
*/
static int s3c_fb_set_par(struct fb_info *info)
{
struct fb_var_screeninfo *var = &info->var;
struct s3c_fb_win *win = info->par;
struct s3c_fb *sfb = win->parent;
void __iomem *regs = sfb->regs;
void __iomem *buf = regs;
int win_no = win->index;
u32 alpha = 0;
u32 data;
u32 pagewidth;
dev_dbg(sfb->dev, "setting framebuffer parameters\n");
pm_runtime_get_sync(sfb->dev);
shadow_protect_win(win, 1);
switch (var->bits_per_pixel) {
case 32:
case 24:
case 16:
case 12:
info->fix.visual = FB_VISUAL_TRUECOLOR;
break;
case 8:
if (win->variant.palette_sz >= 256)
info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
else
info->fix.visual = FB_VISUAL_TRUECOLOR;
break;
case 1:
info->fix.visual = FB_VISUAL_MONO01;
break;
default:
info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
break;
}
info->fix.line_length = (var->xres_virtual * var->bits_per_pixel) / 8;
info->fix.xpanstep = info->var.xres_virtual > info->var.xres ? 1 : 0;
info->fix.ypanstep = info->var.yres_virtual > info->var.yres ? 1 : 0;
/* disable the window whilst we update it */
writel(0, regs + WINCON(win_no));
if (!sfb->output_on)
s3c_fb_enable(sfb, 1);
/* write the buffer address */
/* start and end registers stride is 8 */
buf = regs + win_no * 8;
writel(info->fix.smem_start, buf + sfb->variant.buf_start);
data = info->fix.smem_start + info->fix.line_length * var->yres;
writel(data, buf + sfb->variant.buf_end);
pagewidth = (var->xres * var->bits_per_pixel) >> 3;
data = VIDW_BUF_SIZE_OFFSET(info->fix.line_length - pagewidth) |
VIDW_BUF_SIZE_PAGEWIDTH(pagewidth) |
VIDW_BUF_SIZE_OFFSET_E(info->fix.line_length - pagewidth) |
VIDW_BUF_SIZE_PAGEWIDTH_E(pagewidth);
writel(data, regs + sfb->variant.buf_size + (win_no * 4));
/* write 'OSD' registers to control position of framebuffer */
data = VIDOSDxA_TOPLEFT_X(0) | VIDOSDxA_TOPLEFT_Y(0) |
VIDOSDxA_TOPLEFT_X_E(0) | VIDOSDxA_TOPLEFT_Y_E(0);
writel(data, regs + VIDOSD_A(win_no, sfb->variant));
data = VIDOSDxB_BOTRIGHT_X(s3c_fb_align_word(var->bits_per_pixel,
var->xres - 1)) |
VIDOSDxB_BOTRIGHT_Y(var->yres - 1) |
VIDOSDxB_BOTRIGHT_X_E(s3c_fb_align_word(var->bits_per_pixel,
var->xres - 1)) |
VIDOSDxB_BOTRIGHT_Y_E(var->yres - 1);
writel(data, regs + VIDOSD_B(win_no, sfb->variant));
data = var->xres * var->yres;
alpha = VIDISD14C_ALPHA1_R(0xf) |
VIDISD14C_ALPHA1_G(0xf) |
VIDISD14C_ALPHA1_B(0xf);
vidosd_set_alpha(win, alpha);
vidosd_set_size(win, data);
/* Enable DMA channel for this window */
if (sfb->variant.has_shadowcon) {
data = readl(sfb->regs + SHADOWCON);
data |= SHADOWCON_CHx_ENABLE(win_no);
writel(data, sfb->regs + SHADOWCON);
}
data = WINCONx_ENWIN;
sfb->enabled |= (1 << win->index);
/* note, since we have to round up the bits-per-pixel, we end up
* relying on the bitfield information for r/g/b/a to work out
* exactly which mode of operation is intended. */
switch (var->bits_per_pixel) {
case 1:
data |= WINCON0_BPPMODE_1BPP;
data |= WINCONx_BITSWP;
data |= WINCONx_BURSTLEN_4WORD;
break;
case 2:
data |= WINCON0_BPPMODE_2BPP;
data |= WINCONx_BITSWP;
data |= WINCONx_BURSTLEN_8WORD;
break;
case 4:
data |= WINCON0_BPPMODE_4BPP;
data |= WINCONx_BITSWP;
data |= WINCONx_BURSTLEN_8WORD;
break;
case 8:
if (var->transp.length != 0)
data |= WINCON1_BPPMODE_8BPP_1232;
else
data |= WINCON0_BPPMODE_8BPP_PALETTE;
data |= WINCONx_BURSTLEN_8WORD;
data |= WINCONx_BYTSWP;
break;
case 16:
if (var->transp.length != 0)
data |= WINCON1_BPPMODE_16BPP_A1555;
else
data |= WINCON0_BPPMODE_16BPP_565;
data |= WINCONx_HAWSWP;
data |= WINCONx_BURSTLEN_16WORD;
break;
case 24:
case 32:
if (var->red.length == 6) {
if (var->transp.length != 0)
data |= WINCON1_BPPMODE_19BPP_A1666;
else
data |= WINCON1_BPPMODE_18BPP_666;
} else if (var->transp.length == 1)
data |= WINCON1_BPPMODE_25BPP_A1888
| WINCON1_BLD_PIX;
else if ((var->transp.length == 4) ||
(var->transp.length == 8))
data |= WINCON1_BPPMODE_28BPP_A4888
| WINCON1_BLD_PIX | WINCON1_ALPHA_SEL;
else
data |= WINCON0_BPPMODE_24BPP_888;
data |= WINCONx_WSWP;
data |= WINCONx_BURSTLEN_16WORD;
break;
}
/* Enable the colour keying for the window below this one */
if (win_no > 0) {
u32 keycon0_data = 0, keycon1_data = 0;
void __iomem *keycon = regs + sfb->variant.keycon;
keycon0_data = ~(WxKEYCON0_KEYBL_EN |
WxKEYCON0_KEYEN_F |
WxKEYCON0_DIRCON) | WxKEYCON0_COMPKEY(0);
keycon1_data = WxKEYCON1_COLVAL(0xffffff);
keycon += (win_no - 1) * 8;
writel(keycon0_data, keycon + WKEYCON0);
writel(keycon1_data, keycon + WKEYCON1);
}
writel(data, regs + sfb->variant.wincon + (win_no * 4));
writel(0x0, regs + sfb->variant.winmap + (win_no * 4));
/* Set alpha value width */
if (sfb->variant.has_blendcon) {
data = readl(sfb->regs + BLENDCON);
data &= ~BLENDCON_NEW_MASK;
if (var->transp.length > 4)
data |= BLENDCON_NEW_8BIT_ALPHA_VALUE;
else
data |= BLENDCON_NEW_4BIT_ALPHA_VALUE;
writel(data, sfb->regs + BLENDCON);
}
shadow_protect_win(win, 0);
pm_runtime_put_sync(sfb->dev);
return 0;
}