C++ (Cpp) lcdc_write_chan_mirror Examples

Example #1

File: sh_mobile_lcdcfb.c Project: kozmikkick/eternityprj-kernel-endeavoru-128

static int sh_mobile_fb_pan_display(struct fb_var_screeninfo *var,
				     struct fb_info *info)
{
	struct sh_mobile_lcdc_chan *ch = info->par;
	struct sh_mobile_lcdc_priv *priv = ch->lcdc;
	unsigned long ldrcntr;
	unsigned long new_pan_offset;
	unsigned long base_addr_y, base_addr_c;
	unsigned long c_offset;

	if (!var->nonstd)
		new_pan_offset = (var->yoffset * info->fix.line_length) +
			(var->xoffset * (info->var.bits_per_pixel / 8));
	else
		new_pan_offset = (var->yoffset * info->fix.line_length) +
			(var->xoffset);

	if (new_pan_offset == ch->pan_offset)
		return 0;	/* No change, do nothing */

	ldrcntr = lcdc_read(priv, _LDRCNTR);

	/* Set the source address for the next refresh */
	base_addr_y = ch->dma_handle + new_pan_offset;
	if (var->nonstd) {
		/* Set y offset */
		c_offset = (var->yoffset *
			info->fix.line_length *
			(info->var.bits_per_pixel - 8)) / 8;
		base_addr_c = ch->dma_handle + var->xres * var->yres_virtual +
			c_offset;
		/* Set x offset */
		if (info->var.bits_per_pixel == 24)
			base_addr_c += 2 * var->xoffset;
		else
			base_addr_c += var->xoffset;
	} else
		base_addr_c = 0;

	lcdc_write_chan_mirror(ch, LDSA1R, base_addr_y);
	if (base_addr_c)
		lcdc_write_chan_mirror(ch, LDSA2R, base_addr_c);

	if (lcdc_chan_is_sublcd(ch))
		lcdc_write(ch->lcdc, _LDRCNTR, ldrcntr ^ LDRCNTR_SRS);
	else
		lcdc_write(ch->lcdc, _LDRCNTR, ldrcntr ^ LDRCNTR_MRS);

	ch->pan_offset = new_pan_offset;

	sh_mobile_lcdc_deferred_io_touch(info);

	return 0;
}

Example #2

File: sh_mobile_lcdcfb.c Project: ANFS/ANFS-kernel

static int sh_mobile_fb_pan_display(struct fb_var_screeninfo *var,
				     struct fb_info *info)
{
	struct sh_mobile_lcdc_chan *ch = info->par;
	struct sh_mobile_lcdc_priv *priv = ch->lcdc;
	unsigned long ldrcntr;
	unsigned long new_pan_offset;

	new_pan_offset = (var->yoffset * info->fix.line_length) +
		(var->xoffset * (info->var.bits_per_pixel / 8));

	if (new_pan_offset == ch->pan_offset)
		return 0;	/* No change, do nothing */

	ldrcntr = lcdc_read(priv, _LDRCNTR);

	/* Set the source address for the next refresh */
	lcdc_write_chan_mirror(ch, LDSA1R, ch->dma_handle + new_pan_offset);
	if (lcdc_chan_is_sublcd(ch))
		lcdc_write(ch->lcdc, _LDRCNTR, ldrcntr ^ LDRCNTR_SRS);
	else
		lcdc_write(ch->lcdc, _LDRCNTR, ldrcntr ^ LDRCNTR_MRS);

	ch->pan_offset = new_pan_offset;

	sh_mobile_lcdc_deferred_io_touch(info);

	return 0;
}

Example #3

File: sh_mobile_lcdcfb.c Project: 325116067/semc-qsd8x50

static irqreturn_t sh_mobile_lcdc_irq(int irq, void *data)
{
	struct sh_mobile_lcdc_priv *priv = data;
	struct sh_mobile_lcdc_chan *ch;
	unsigned long tmp;
	unsigned long ldintr;
	int is_sub;
	int k;

	/* acknowledge interrupt */
	ldintr = tmp = lcdc_read(priv, _LDINTR);
	/*
	 * disable further VSYNC End IRQs, preserve all other enabled IRQs,
	 * write 0 to bits 0-6 to ack all triggered IRQs.
	 */
	tmp &= 0xffffff00 & ~LDINTR_VEE;
	lcdc_write(priv, _LDINTR, tmp);

	/* figure out if this interrupt is for main or sub lcd */
	is_sub = (lcdc_read(priv, _LDSR) & (1 << 10)) ? 1 : 0;

	/* wake up channel and disable clocks */
	for (k = 0; k < ARRAY_SIZE(priv->ch); k++) {
		ch = &priv->ch[k];

		if (!ch->enabled)
			continue;

		/* Frame Start */
		if (ldintr & LDINTR_FS) {
			if (is_sub == lcdc_chan_is_sublcd(ch)) {
				ch->frame_end = 1;
				wake_up(&ch->frame_end_wait);

				sh_mobile_lcdc_clk_off(priv);
			}
		}

		/* VSYNC End */
		if (ldintr & LDINTR_VES) {
			unsigned long ldrcntr = lcdc_read(priv, _LDRCNTR);
			/* Set the source address for the next refresh */
			lcdc_write_chan_mirror(ch, LDSA1R, ch->dma_handle +
					       ch->new_pan_offset);
			if (lcdc_chan_is_sublcd(ch))
				lcdc_write(ch->lcdc, _LDRCNTR,
					   ldrcntr ^ LDRCNTR_SRS);
			else
				lcdc_write(ch->lcdc, _LDRCNTR,
					   ldrcntr ^ LDRCNTR_MRS);
			ch->pan_offset = ch->new_pan_offset;
		}
	}

	return IRQ_HANDLED;
}

Example #4

static irqreturn_t sh_mobile_lcdc_irq(int irq, void *data)
{
	struct sh_mobile_lcdc_priv *priv = data;
	struct sh_mobile_lcdc_chan *ch;
	unsigned long tmp;
	unsigned long ldintr;
	int is_sub;
	int k;

	
	ldintr = tmp = lcdc_read(priv, _LDINTR);
	
	tmp &= 0xffffff00 & ~LDINTR_VEE;
	lcdc_write(priv, _LDINTR, tmp);

	
	is_sub = (lcdc_read(priv, _LDSR) & (1 << 10)) ? 1 : 0;

	
	for (k = 0; k < ARRAY_SIZE(priv->ch); k++) {
		ch = &priv->ch[k];

		if (!ch->enabled)
			continue;

		
		if (ldintr & LDINTR_FS) {
			if (is_sub == lcdc_chan_is_sublcd(ch)) {
				ch->frame_end = 1;
				wake_up(&ch->frame_end_wait);

				sh_mobile_lcdc_clk_off(priv);
			}
		}

		
		if (ldintr & LDINTR_VES) {
			unsigned long ldrcntr = lcdc_read(priv, _LDRCNTR);
			
			lcdc_write_chan_mirror(ch, LDSA1R, ch->dma_handle +
					       ch->new_pan_offset);
			if (lcdc_chan_is_sublcd(ch))
				lcdc_write(ch->lcdc, _LDRCNTR,
					   ldrcntr ^ LDRCNTR_SRS);
			else
				lcdc_write(ch->lcdc, _LDRCNTR,
					   ldrcntr ^ LDRCNTR_MRS);
			ch->pan_offset = ch->new_pan_offset;
		}
	}

	return IRQ_HANDLED;
}