[ARM PATCH] 2167/1: OMAP update 6/8: Add graphics acceleration support to DMA

Patch from Tony Lindgren

This patch by Imre Deak adds support for graphics acceleration
features on the OMAP DMA controller.

Signed-off-by: Tony Lindgren

arch/arm/mach-omap/dma.c

@@ -4,6 +4,8 @@
  * Copyright (C) 2003 Nokia Corporation
  * Author: Juha Yrjl <juha.yrjola@nokia.com>
  * DMA channel linking for 1610 by Samuel Ortiz <samuel.ortiz@nokia.com>
+ * Graphics DMA and LCD DMA graphics tranformations
+ * by Imre Deak <imre.deak@nokia.com>
  *
  * Support functions for the OMAP internal DMA channels.
  *
@@ -26,6 +28,8 @@
 #include <asm/dma.h>
 #include <asm/io.h>
 
+#include <asm/arch/tc.h>
+
 #define OMAP_DMA_ACTIVE		0x01
 
 #define OMAP_DMA_CCR_EN		(1 << 7)
@@ -87,6 +91,34 @@ static void clear_lch_regs(int lch)
 		omap_writew(0, lch_base + i);
 }
 
+void omap_set_dma_priority(int dst_port, int priority)
+{
+	unsigned long reg;
+	u32 l;
+
+	switch (dst_port) {
+	case OMAP_DMA_PORT_OCP_T1:	/* FFFECC00 */
+		reg = OMAP_TC_OCPT1_PRIOR;
+		break;
+	case OMAP_DMA_PORT_OCP_T2:	/* FFFECCD0 */
+		reg = OMAP_TC_OCPT2_PRIOR;
+		break;
+	case OMAP_DMA_PORT_EMIFF:	/* FFFECC08 */
+		reg = OMAP_TC_EMIFF_PRIOR;
+		break;
+	case OMAP_DMA_PORT_EMIFS:	/* FFFECC04 */
+		reg = OMAP_TC_EMIFS_PRIOR;
+		break;
+	default:
+		BUG();
+		return;
+	}
+	l = omap_readl(reg);
+	l &= ~(0xf << 8);
+	l |= (priority & 0xf) << 8;
+	omap_writel(l, reg);
+}
+
 void omap_set_dma_transfer_params(int lch, int data_type, int elem_count,
 				  int frame_count, int sync_mode)
 {
@@ -113,51 +145,38 @@ void omap_set_dma_transfer_params(int lch, int data_type, int elem_count,
 	omap_writew(frame_count, OMAP_DMA_CFN(lch));
 
 }
-void omap_set_dma_constant_fill(int lch, u32 color)
+void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode, u32 color)
 {
 	u16 w;
 
-#ifdef CONFIG_DEBUG_KERNEL
-	if (omap_dma_in_1510_mode()) {
-		printk(KERN_ERR "OMAP DMA constant fill not available in 1510 mode.");
-		BUG();
-		return;
-	}
-#endif
-	w = omap_readw(OMAP_DMA_CCR2(lch)) & ~0x03;
-	w |= 0x01;
-	omap_writew(w, OMAP_DMA_CCR2(lch));
+	BUG_ON(omap_dma_in_1510_mode());
 
-	omap_writew((u16)color, OMAP_DMA_COLOR_L(lch));
-	omap_writew((u16)(color >> 16), OMAP_DMA_COLOR_U(lch));
-
-	w = omap_readw(OMAP_DMA_LCH_CTRL(lch)) & ~0x0f;
-	w |= 1;		/* Channel type G */
-	omap_writew(w, OMAP_DMA_LCH_CTRL(lch));
-}
-
-void omap_set_dma_transparent_copy(int lch, u32 color)
-{
-	u16 w;
-
-#ifdef CONFIG_DEBUG_KERNEL
-	if (omap_dma_in_1510_mode()) {
-		printk(KERN_ERR "OMAP DMA transparent copy not available in 1510 mode.");
+	w = omap_readw(OMAP_DMA_CCR2(lch)) & ~0x03;
+	switch (mode) {
+	case OMAP_DMA_CONSTANT_FILL:
+		w |= 0x01;
+		break;
+	case OMAP_DMA_TRANSPARENT_COPY:
+		w |= 0x02;
+		break;
+	case OMAP_DMA_COLOR_DIS:
+		break;
+	default:
 		BUG();
 	}
-#endif
-	w = omap_readw(OMAP_DMA_CCR2(lch)) & ~0x03;
-	w |= 0x02;
 	omap_writew(w, OMAP_DMA_CCR2(lch));
 
-	omap_writew((u16)color, OMAP_DMA_COLOR_L(lch));
-	omap_writew((u16)(color >> 16), OMAP_DMA_COLOR_U(lch));
-
 	w = omap_readw(OMAP_DMA_LCH_CTRL(lch)) & ~0x0f;
-	w |= 1;		/* Channel type G */
+	/* Default is channel type 2D */
+	if (mode) {
+		omap_writew((u16)color, OMAP_DMA_COLOR_L(lch));
+		omap_writew((u16)(color >> 16), OMAP_DMA_COLOR_U(lch));
+		w |= 1;		/* Channel type G */
+	}
 	omap_writew(w, OMAP_DMA_LCH_CTRL(lch));
 }
 
+
 void omap_set_dma_src_params(int lch, int src_port, int src_amode,
 			     unsigned long src_start)
 {
@@ -192,22 +211,24 @@ void omap_set_dma_src_data_pack(int lch, int enable)
 	omap_writew(w, OMAP_DMA_CSDP(lch));
 }
 
-void omap_set_dma_src_burst_mode(int lch, int burst_mode)
+void omap_set_dma_src_burst_mode(int lch, enum omap_dma_burst_mode burst_mode)
 {
 	u16 w;
 
 	w = omap_readw(OMAP_DMA_CSDP(lch)) & ~(0x03 << 7);
 	switch (burst_mode) {
+	case OMAP_DMA_DATA_BURST_DIS:
+		break;
 	case OMAP_DMA_DATA_BURST_4:
 		w |= (0x01 << 7);
 		break;
 	case OMAP_DMA_DATA_BURST_8:
-		w |= (0x03 << 7);
-		break;
+		/* not supported by current hardware
+		 * w |= (0x03 << 7);
+		 * fall through
+		 */
 	default:
-		printk(KERN_ERR "Invalid DMA burst mode\n");
 		BUG();
-		return;
 	}
 	omap_writew(w, OMAP_DMA_CSDP(lch));
 }
@@ -246,12 +267,14 @@ void omap_set_dma_dest_data_pack(int lch, int enable)
 	omap_writew(w, OMAP_DMA_CSDP(lch));
 }
 
-void omap_set_dma_dest_burst_mode(int lch, int burst_mode)
+void omap_set_dma_dest_burst_mode(int lch, enum omap_dma_burst_mode burst_mode)
 {
 	u16 w;
 
 	w = omap_readw(OMAP_DMA_CSDP(lch)) & ~(0x03 << 14);
 	switch (burst_mode) {
+	case OMAP_DMA_DATA_BURST_DIS:
+		break;
 	case OMAP_DMA_DATA_BURST_4:
 		w |= (0x01 << 14);
 		break;
@@ -474,7 +497,7 @@ int omap_request_dma(int dev_id, const char *dev_name,
 	chan->data = data;
 	chan->enabled_irqs = OMAP_DMA_TOUT_IRQ | OMAP_DMA_DROP_IRQ | OMAP_DMA_BLOCK_IRQ;
 
-	if (cpu_is_omap1610() || cpu_is_omap5912() || cpu_is_omap730() || cpu_is_omap1710()) {
+	if (cpu_is_omap16xx() || cpu_is_omap730()) {
 		/* If the sync device is set, configure it dynamically. */
 		if (dev_id != 0) {
 			set_gdma_dev(free_ch + 1, dev_id);
@@ -571,8 +594,15 @@ static struct lcd_dma_info {
 	void (* callback)(u16 status, void *data);
 	void *cb_data;
 
+	int active;
 	unsigned long addr, size;
 	int rotate, data_type, xres, yres;
+	int vxres;
+	int mirror;
+	int xscale, yscale;
+	int ext_ctrl;
+	int src_port;
+	int single_transfer;
 } lcd_dma;
 
 void omap_set_lcd_dma_b1(unsigned long addr, u16 fb_xres, u16 fb_yres,
@@ -584,14 +614,70 @@ void omap_set_lcd_dma_b1(unsigned long addr, u16 fb_xres, u16 fb_yres,
 	lcd_dma.yres = fb_yres;
 }
 
+void omap_set_lcd_dma_src_port(int port)
+{
+	lcd_dma.src_port = port;
+}
+
+void omap_set_lcd_dma_ext_controller(int external)
+{
+	lcd_dma.ext_ctrl = external;
+}
+
+void omap_set_lcd_dma_single_transfer(int single)
+{
+	lcd_dma.single_transfer = single;
+}
+
+
+void omap_set_lcd_dma_b1_rotation(int rotate)
+{
+	if (omap_dma_in_1510_mode()) {
+		printk(KERN_ERR "DMA rotation is not supported in 1510 mode\n");
+		BUG();
+		return;
+	}
+	lcd_dma.rotate = rotate;
+}
+
+void omap_set_lcd_dma_b1_mirror(int mirror)
+{
+	if (omap_dma_in_1510_mode()) {
+		printk(KERN_ERR "DMA mirror is not supported in 1510 mode\n");
+		BUG();
+	}
+	lcd_dma.mirror = mirror;
+}
+
+void omap_set_lcd_dma_b1_vxres(unsigned long vxres)
+{
+	if (omap_dma_in_1510_mode()) {
+		printk(KERN_ERR "DMA virtual resulotion is not supported "
+				"in 1510 mode\n");
+		BUG();
+	}
+	lcd_dma.vxres = vxres;
+}
+
+void omap_set_lcd_dma_b1_scale(unsigned int xscale, unsigned int yscale)
+{
+	if (omap_dma_in_1510_mode()) {
+		printk(KERN_ERR "DMA scale is not supported in 1510 mode\n");
+		BUG();
+	}
+	lcd_dma.xscale = xscale;
+	lcd_dma.yscale = yscale;
+}
+
 static void set_b1_regs(void)
 {
 	unsigned long top, bottom;
 	int es;
-	u16 w, en, fn;
-	s16 ei;
-	s32 fi;
-	u32 l;
+	u16 w;
+	unsigned long en, fn;
+	long ei, fi;
+	unsigned long vxres;
+	unsigned int xscale, yscale;
 
 	switch (lcd_dma.data_type) {
 	case OMAP_DMA_DATA_TYPE_S8:
@@ -608,25 +694,81 @@ static void set_b1_regs(void)
 		return;
 	}
 
-	if (lcd_dma.rotate == 0) {
-		top = lcd_dma.addr;
-		bottom = lcd_dma.addr + (lcd_dma.xres * lcd_dma.yres - 1) * es;
-		/* 1510 DMA requires the bottom address to be 2 more than the
-		 * actual last memory access location. */
-		if (omap_dma_in_1510_mode() &&
-		    lcd_dma.data_type == OMAP_DMA_DATA_TYPE_S32)
-			bottom += 2;
+	vxres = lcd_dma.vxres ? lcd_dma.vxres : lcd_dma.xres;
+	xscale = lcd_dma.xscale ? lcd_dma.xscale : 1;
+	yscale = lcd_dma.yscale ? lcd_dma.yscale : 1;
+	BUG_ON(vxres < lcd_dma.xres);
+#define PIXADDR(x,y) (lcd_dma.addr + ((y) * vxres * yscale + (x) * xscale) * es)
+#define PIXSTEP(sx, sy, dx, dy) (PIXADDR(dx, dy) - PIXADDR(sx, sy) - es + 1)
+	switch (lcd_dma.rotate) {
+	case 0:
+		if (!lcd_dma.mirror) {
+			top = PIXADDR(0, 0);
+			bottom = PIXADDR(lcd_dma.xres - 1, lcd_dma.yres - 1);
+			/* 1510 DMA requires the bottom address to be 2 more
+			 * than the actual last memory access location. */
+			if (omap_dma_in_1510_mode() &&
+			    lcd_dma.data_type == OMAP_DMA_DATA_TYPE_S32)
+				bottom += 2;
+			ei = PIXSTEP(0, 0, 1, 0);
+			fi = PIXSTEP(lcd_dma.xres - 1, 0, 0, 1);
+		} else {
+			top = PIXADDR(lcd_dma.xres - 1, 0);
+			bottom = PIXADDR(0, lcd_dma.yres - 1);
+			ei = PIXSTEP(1, 0, 0, 0);
+			fi = PIXSTEP(0, 0, lcd_dma.xres - 1, 1);
+		}
 		en = lcd_dma.xres;
 		fn = lcd_dma.yres;
-		ei = 0;
-		fi = 0;
-	} else {
-		top = lcd_dma.addr + (lcd_dma.xres - 1) * es;
-		bottom = lcd_dma.addr + (lcd_dma.yres - 1) * lcd_dma.xres * es;
+		break;
+	case 90:
+		if (!lcd_dma.mirror) {
+			top = PIXADDR(0, lcd_dma.yres - 1);
+			bottom = PIXADDR(lcd_dma.xres - 1, 0);
+			ei = PIXSTEP(0, 1, 0, 0);
+			fi = PIXSTEP(0, 0, 1, lcd_dma.yres - 1);
+		} else {
+			top = PIXADDR(lcd_dma.xres - 1, lcd_dma.yres - 1);
+			bottom = PIXADDR(0, 0);
+			ei = PIXSTEP(0, 1, 0, 0);
+			fi = PIXSTEP(1, 0, 0, lcd_dma.yres - 1);
+		}
+		en = lcd_dma.yres;
+		fn = lcd_dma.xres;
+		break;
+	case 180:
+		if (!lcd_dma.mirror) {
+			top = PIXADDR(lcd_dma.xres - 1, lcd_dma.yres - 1);
+			bottom = PIXADDR(0, 0);
+			ei = PIXSTEP(1, 0, 0, 0);
+			fi = PIXSTEP(0, 1, lcd_dma.xres - 1, 0);
+		} else {
+			top = PIXADDR(0, lcd_dma.yres - 1);
+			bottom = PIXADDR(lcd_dma.xres - 1, 0);
+			ei = PIXSTEP(0, 0, 1, 0);
+			fi = PIXSTEP(lcd_dma.xres - 1, 1, 0, 0);
+		}
+		en = lcd_dma.xres;
+		fn = lcd_dma.yres;
+		break;
+	case 270:
+		if (!lcd_dma.mirror) {
+			top = PIXADDR(lcd_dma.xres - 1, 0);
+			bottom = PIXADDR(0, lcd_dma.yres - 1);
+			ei = PIXSTEP(0, 0, 0, 1);
+			fi = PIXSTEP(1, lcd_dma.yres - 1, 0, 0);
+		} else {
+			top = PIXADDR(0, 0);
+			bottom = PIXADDR(lcd_dma.xres - 1, lcd_dma.yres - 1);
+			ei = PIXSTEP(0, 0, 0, 1);
+			fi = PIXSTEP(0, lcd_dma.yres - 1, 1, 0);
+		}
 		en = lcd_dma.yres;
 		fn = lcd_dma.xres;
-		ei = (lcd_dma.xres - 1) * es + 1;
-		fi = -(lcd_dma.xres * (lcd_dma.yres - 1) + 2) * 2 + 1;
+		break;
+	default:
+		BUG();
+		return;	/* Supress warning about uninitialized vars */
 	}
 
 	if (omap_dma_in_1510_mode()) {
@@ -652,33 +794,50 @@ static void set_b1_regs(void)
 	w |= lcd_dma.data_type;
 	omap_writew(w, OMAP1610_DMA_LCD_CSDP);
 
-	if (!lcd_dma.rotate)
+	w = omap_readw(OMAP1610_DMA_LCD_CTRL);
+	/* Always set the source port as SDRAM for now*/
+	w &= ~(0x03 << 6);
+	if (lcd_dma.ext_ctrl)
+		w |= 1 << 8;
+	else
+		w &= ~(1 << 8);
+	if (lcd_dma.callback != NULL)
+		w |= 1 << 1;            /* Block interrupt enable */
+	else
+		w &= ~(1 << 1);
+	omap_writew(w, OMAP1610_DMA_LCD_CTRL);
+
+	if (!(lcd_dma.rotate || lcd_dma.mirror ||
+	      lcd_dma.vxres || lcd_dma.xscale || lcd_dma.yscale))
 		return;
 
-	/* Rotation stuff */
-	l = omap_readw(OMAP1610_DMA_LCD_CSDP);
-	/* Disable burst access */
-	l &= ~(0x03 << 7);
-	omap_writew(l, OMAP1610_DMA_LCD_CSDP);
-
-	l = omap_readw(OMAP1610_DMA_LCD_CCR);
+	w = omap_readw(OMAP1610_DMA_LCD_CCR);
 	/* Set the double-indexed addressing mode */
-	l |= (0x03 << 12);
-	omap_writew(l, OMAP1610_DMA_LCD_CCR);
+	w |= (0x03 << 12);
+	omap_writew(w, OMAP1610_DMA_LCD_CCR);
 
 	omap_writew(ei, OMAP1610_DMA_LCD_SRC_EI_B1);
 	omap_writew(fi >> 16, OMAP1610_DMA_LCD_SRC_FI_B1_U);
 	omap_writew(fi, OMAP1610_DMA_LCD_SRC_FI_B1_L);
 }
 
-void omap_set_lcd_dma_b1_rotation(int rotate)
+static irqreturn_t lcd_dma_irq_handler(int irq, void *dev_id, struct pt_regs *regs)
 {
-	if (omap_dma_in_1510_mode()) {
-		printk(KERN_ERR "DMA rotation is not supported in 1510 mode\n");
-		BUG();
-		return;
+	u16 w;
+
+	w = omap_readw(OMAP1610_DMA_LCD_CTRL);
+	if (unlikely(!(w & (1 << 3)))) {
+		printk(KERN_WARNING "Spurious LCD DMA IRQ\n");
+		return IRQ_NONE;
 	}
-	lcd_dma.rotate = rotate;
+	/* Ack the IRQ */
+	w |= (1 << 3);
+	omap_writew(w, OMAP1610_DMA_LCD_CTRL);
+	lcd_dma.active = 0;
+	if (lcd_dma.callback != NULL)
+		lcd_dma.callback(w, lcd_dma.cb_data);
+
+	return IRQ_HANDLED;
 }
 
 int omap_request_lcd_dma(void (* callback)(u16 status, void *data),
@@ -695,6 +854,15 @@ int omap_request_lcd_dma(void (* callback)(u16 status, void *data),
 	spin_unlock_irq(&lcd_dma.lock);
 	lcd_dma.callback = callback;
 	lcd_dma.cb_data = data;
+	lcd_dma.active = 0;
+	lcd_dma.single_transfer = 0;
+	lcd_dma.rotate = 0;
+	lcd_dma.vxres = 0;
+	lcd_dma.mirror = 0;
+	lcd_dma.xscale = 0;
+	lcd_dma.yscale = 0;
+	lcd_dma.ext_ctrl = 0;
+	lcd_dma.src_port = 0;
 
 	return 0;
 }
@@ -714,23 +882,53 @@ void omap_free_lcd_dma(void)
 	spin_unlock(&lcd_dma.lock);
 }
 
-void omap_start_lcd_dma(void)
+void omap_enable_lcd_dma(void)
 {
+	u16 w;
+
+	/* Set the Enable bit only if an external controller is
+	 * connected. Otherwise the OMAP internal controller will
+	 * start the transfer when it gets enabled.
+	 */
+	if (enable_1510_mode || !lcd_dma.ext_ctrl)
+		return;
+	w = omap_readw(OMAP1610_DMA_LCD_CCR);
+	w |= 1 << 7;
+	omap_writew(w, OMAP1610_DMA_LCD_CCR);
+	lcd_dma.active = 1;
+}
+
+void omap_setup_lcd_dma(void)
+{
+	BUG_ON(lcd_dma.active);
 	if (!enable_1510_mode) {
 		/* Set some reasonable defaults */
+		omap_writew(0x5440, OMAP1610_DMA_LCD_CCR);
 		omap_writew(0x9102, OMAP1610_DMA_LCD_CSDP);
 		omap_writew(0x0004, OMAP1610_DMA_LCD_LCH_CTRL);
-		omap_writew(0x5740, OMAP1610_DMA_LCD_CCR);
 	}
 	set_b1_regs();
-	if (!enable_1510_mode)
-		omap_writew(omap_readw(OMAP1610_DMA_LCD_CCR) | 1, OMAP1610_DMA_LCD_CCR);
+	if (!enable_1510_mode) {
+		u16 w;
+
+		w = omap_readw(OMAP1610_DMA_LCD_CCR);
+		/* If DMA was already active set the end_prog bit to have
+		 * the programmed register set loaded into the active
+		 * register set.
+		 */
+		w |= 1 << 11;		/* End_prog */
+		if (!lcd_dma.single_transfer)
+	        	w |= (3 << 8);	/* Auto_init, repeat */
+		omap_writew(w, OMAP1610_DMA_LCD_CCR);
+	}
 }
 
 void omap_stop_lcd_dma(void)
 {
-	if (!enable_1510_mode)
-		omap_writew(omap_readw(OMAP1610_DMA_LCD_CCR) & ~1, OMAP1610_DMA_LCD_CCR);
+	lcd_dma.active = 0;
+	if (!enable_1510_mode && lcd_dma.ext_ctrl)
+		omap_writew(omap_readw(OMAP1610_DMA_LCD_CCR) & ~(1 << 7),
+			    OMAP1610_DMA_LCD_CCR);
 }
 
 static int __init omap_init_dma(void)
@@ -741,7 +939,7 @@ static int __init omap_init_dma(void)
 		printk(KERN_INFO "DMA support for OMAP1510 initialized\n");
 		dma_chan_count = 9;
 		enable_1510_mode = 1;
-	} else if (cpu_is_omap1610() || cpu_is_omap5912() || cpu_is_omap730() || cpu_is_omap1710()) {
+	} else if (cpu_is_omap16xx() || cpu_is_omap730()) {
 		printk(KERN_INFO "OMAP DMA hardware version %d\n",
 		       omap_readw(OMAP_DMA_HW_ID));
 		printk(KERN_INFO "DMA capabilities: %08x:%08x:%04x:%04x:%04x\n",
@@ -756,7 +954,7 @@ static int __init omap_init_dma(void)
 			w = omap_readw(OMAP_DMA_GSCR);
 			w |= 1 << 3;
 			omap_writew(w, OMAP_DMA_GSCR);
-			dma_chan_count = OMAP_LOGICAL_DMA_CH_COUNT;
+			dma_chan_count = 16;
 		} else
 			dma_chan_count = 9;
 	} else {
@@ -790,11 +988,21 @@ static int __init omap_init_dma(void)
 			return r;
 		}
 	}
-
+	r = request_irq(INT_DMA_LCD, lcd_dma_irq_handler, 0, "LCD DMA", NULL);
+	if (r != 0) {
+		int i;
+
+		printk(KERN_ERR "unable to request IRQ for LCD DMA (error %d)\n", r);
+		for (i = 0; i < dma_chan_count; i++)
+			free_irq(dma_irq[i], (void *) (i + 1));
+		return r;
+	}
 	return 0;
 }
 arch_initcall(omap_init_dma);
 
+
+EXPORT_SYMBOL(omap_set_dma_priority);
 EXPORT_SYMBOL(omap_request_dma);
 EXPORT_SYMBOL(omap_free_dma);
 EXPORT_SYMBOL(omap_start_dma);
@@ -803,8 +1011,7 @@ EXPORT_SYMBOL(omap_enable_dma_irq);
 EXPORT_SYMBOL(omap_disable_dma_irq);
 
 EXPORT_SYMBOL(omap_set_dma_transfer_params);
-EXPORT_SYMBOL(omap_set_dma_constant_fill);
-EXPORT_SYMBOL(omap_set_dma_transparent_copy);
+EXPORT_SYMBOL(omap_set_dma_color_mode);
 
 EXPORT_SYMBOL(omap_set_dma_src_params);
 EXPORT_SYMBOL(omap_set_dma_src_index);
@@ -821,7 +1028,14 @@ EXPORT_SYMBOL(omap_dma_unlink_lch);
 
 EXPORT_SYMBOL(omap_request_lcd_dma);
 EXPORT_SYMBOL(omap_free_lcd_dma);
-EXPORT_SYMBOL(omap_start_lcd_dma);
+EXPORT_SYMBOL(omap_enable_lcd_dma);
+EXPORT_SYMBOL(omap_setup_lcd_dma);
 EXPORT_SYMBOL(omap_stop_lcd_dma);
 EXPORT_SYMBOL(omap_set_lcd_dma_b1);
+EXPORT_SYMBOL(omap_set_lcd_dma_single_transfer);
+EXPORT_SYMBOL(omap_set_lcd_dma_ext_controller);
 EXPORT_SYMBOL(omap_set_lcd_dma_b1_rotation);
+EXPORT_SYMBOL(omap_set_lcd_dma_b1_vxres);
+EXPORT_SYMBOL(omap_set_lcd_dma_b1_scale);
+EXPORT_SYMBOL(omap_set_lcd_dma_b1_mirror);
+

include/asm-arm/arch-omap/dma.h

@@ -194,11 +194,19 @@ enum {
 	OMAP_LCD_DMA_B2_BOTTOM
 };
 
-enum {
+enum omap_dma_burst_mode {
+	OMAP_DMA_DATA_BURST_DIS = 0,
 	OMAP_DMA_DATA_BURST_4,
 	OMAP_DMA_DATA_BURST_8
 };
 
+enum omap_dma_color_mode {
+	OMAP_DMA_COLOR_DIS = 0,
+	OMAP_DMA_CONSTANT_FILL,
+	OMAP_DMA_TRANSPARENT_COPY
+};
+
+extern void omap_set_dma_priority(int dst_port, int priority);
 extern int omap_request_dma(int dev_id, const char *dev_name,
 			    void (* callback)(int lch, u16 ch_status, void *data),
 			    void *data, int *dma_ch);
@@ -210,20 +218,22 @@ extern void omap_stop_dma(int lch);
 extern void omap_set_dma_transfer_params(int lch, int data_type,
 					 int elem_count, int frame_count,
 					 int sync_mode);
-extern void omap_set_dma_constant_fill(int lch, u32 color);
-extern void omap_set_dma_transparent_copy(int lch, u32 color);
+extern void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode,
+				    u32 color);
 
 extern void omap_set_dma_src_params(int lch, int src_port, int src_amode,
 				    unsigned long src_start);
 extern void omap_set_dma_src_index(int lch, int eidx, int fidx);
 extern void omap_set_dma_src_data_pack(int lch, int enable);
-extern void omap_set_dma_src_burst_mode(int lch, int burst_mode);
+extern void omap_set_dma_src_burst_mode(int lch,
+					enum omap_dma_burst_mode burst_mode);
 
 extern void omap_set_dma_dest_params(int lch, int dest_port, int dest_amode,
 				     unsigned long dest_start);
 extern void omap_set_dma_dest_index(int lch, int eidx, int fidx);
 extern void omap_set_dma_dest_data_pack(int lch, int enable);
-extern void omap_set_dma_dest_burst_mode(int lch, int burst_mode);
+extern void omap_set_dma_dest_burst_mode(int lch,
+					 enum omap_dma_burst_mode burst_mode);
 
 extern void omap_dma_link_lch (int lch_head, int lch_queue);
 extern void omap_dma_unlink_lch (int lch_head, int lch_queue);
@@ -235,10 +245,16 @@ extern int omap_dma_in_1510_mode(void);
 extern int omap_request_lcd_dma(void (* callback)(u16 status, void *data),
 				void *data);
 extern void omap_free_lcd_dma(void);
-extern void omap_start_lcd_dma(void);
+extern void omap_setup_lcd_dma(void);
+extern void omap_enable_lcd_dma(void);
 extern void omap_stop_lcd_dma(void);
+extern void omap_set_lcd_dma_ext_controller(int external);
+extern void omap_set_lcd_dma_single_transfer(int single);
 extern void omap_set_lcd_dma_b1(unsigned long addr, u16 fb_xres, u16 fb_yres,
 				int data_type);
 extern void omap_set_lcd_dma_b1_rotation(int rotate);
+extern void omap_set_lcd_dma_b1_vxres(unsigned long vxres);
+extern void omap_set_lcd_dma_b1_mirror(int mirror);
+extern void omap_set_lcd_dma_b1_scale(unsigned int xscale, unsigned int yscale);
 
 #endif /* __ASM_ARCH_DMA_H */