[linux-2.6-block.git] / drivers / staging / sm750fb / sm750_accel.c

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/vmalloc.h>
#include <linux/pagemap.h>
#include <linux/console.h>
#include <linux/platform_device.h>
#include <linux/screen_info.h>

#include "sm750.h"
#include "sm750_accel.h"
static inline void write_dpr(struct lynx_accel *accel, int offset, u32 regValue)
{
	writel(regValue, accel->dprBase + offset);
}

static inline u32 read_dpr(struct lynx_accel *accel, int offset)
{
	return readl(accel->dprBase + offset);
}

static inline void write_dpPort(struct lynx_accel *accel, u32 data)
{
	writel(data, accel->dpPortBase);
}

void sm750_hw_de_init(struct lynx_accel *accel)
{
	/* setup 2d engine registers */
	u32 reg, clr;

	write_dpr(accel, DE_MASKS, 0xFFFFFFFF);

	/* dpr1c */
	reg =  0x3;

	clr = DE_STRETCH_FORMAT_PATTERN_XY |
	      DE_STRETCH_FORMAT_PATTERN_Y_MASK |
	      DE_STRETCH_FORMAT_PATTERN_X_MASK |
	      DE_STRETCH_FORMAT_ADDRESSING_MASK |
	      DE_STRETCH_FORMAT_SOURCE_HEIGHT_MASK;

	/* DE_STRETCH bpp format need be initialized in setMode routine */
	write_dpr(accel, DE_STRETCH_FORMAT,
		  (read_dpr(accel, DE_STRETCH_FORMAT) & ~clr) | reg);

	/* disable clipping and transparent */
	write_dpr(accel, DE_CLIP_TL, 0); /* dpr2c */
	write_dpr(accel, DE_CLIP_BR, 0); /* dpr30 */

	write_dpr(accel, DE_COLOR_COMPARE_MASK, 0); /* dpr24 */
	write_dpr(accel, DE_COLOR_COMPARE, 0);

	clr = DE_CONTROL_TRANSPARENCY | DE_CONTROL_TRANSPARENCY_MATCH |
		DE_CONTROL_TRANSPARENCY_SELECT;

	/* dpr0c */
	write_dpr(accel, DE_CONTROL, read_dpr(accel, DE_CONTROL) & ~clr);
}

/*
 * set2dformat only be called from setmode functions
 * but if you need dual framebuffer driver,need call set2dformat
 * every time you use 2d function
 */

void sm750_hw_set2dformat(struct lynx_accel *accel, int fmt)
{
	u32 reg;

	/* fmt=0,1,2 for 8,16,32,bpp on sm718/750/502 */
	reg = read_dpr(accel, DE_STRETCH_FORMAT);
	reg &= ~DE_STRETCH_FORMAT_PIXEL_FORMAT_MASK;
	reg |= ((fmt << DE_STRETCH_FORMAT_PIXEL_FORMAT_SHIFT) &
		DE_STRETCH_FORMAT_PIXEL_FORMAT_MASK);
	write_dpr(accel, DE_STRETCH_FORMAT, reg);
}

int sm750_hw_fillrect(struct lynx_accel *accel,
		      u32 base, u32 pitch, u32 Bpp,
		      u32 x, u32 y, u32 width, u32 height,
		      u32 color, u32 rop)
{
	u32 deCtrl;

	if (accel->de_wait() != 0) {
		/*
		 * int time wait and always busy,seems hardware
		 * got something error
		 */
		pr_debug("De engine always busy\n");
		return -1;
	}

	write_dpr(accel, DE_WINDOW_DESTINATION_BASE, base); /* dpr40 */
	write_dpr(accel, DE_PITCH,
		  ((pitch / Bpp << DE_PITCH_DESTINATION_SHIFT) &
		   DE_PITCH_DESTINATION_MASK) |
		  (pitch / Bpp & DE_PITCH_SOURCE_MASK)); /* dpr10 */

	write_dpr(accel, DE_WINDOW_WIDTH,
		  ((pitch / Bpp << DE_WINDOW_WIDTH_DST_SHIFT) &
		   DE_WINDOW_WIDTH_DST_MASK) |
		   (pitch / Bpp & DE_WINDOW_WIDTH_SRC_MASK)); /* dpr44 */

	write_dpr(accel, DE_FOREGROUND, color); /* DPR14 */

	write_dpr(accel, DE_DESTINATION,
		  ((x << DE_DESTINATION_X_SHIFT) & DE_DESTINATION_X_MASK) |
		  (y & DE_DESTINATION_Y_MASK)); /* dpr4 */

	write_dpr(accel, DE_DIMENSION,
		  ((width << DE_DIMENSION_X_SHIFT) & DE_DIMENSION_X_MASK) |
		  (height & DE_DIMENSION_Y_ET_MASK)); /* dpr8 */

	deCtrl = DE_CONTROL_STATUS | DE_CONTROL_LAST_PIXEL |
		DE_CONTROL_COMMAND_RECTANGLE_FILL | DE_CONTROL_ROP_SELECT |
		(rop & DE_CONTROL_ROP_MASK); /* dpr0xc */

	write_dpr(accel, DE_CONTROL, deCtrl);
	return 0;
}

int sm750_hw_copyarea(
struct lynx_accel *accel,
unsigned int sBase,  /* Address of source: offset in frame buffer */
unsigned int sPitch, /* Pitch value of source surface in BYTE */
unsigned int sx,
unsigned int sy,     /* Starting coordinate of source surface */
unsigned int dBase,  /* Address of destination: offset in frame buffer */
unsigned int dPitch, /* Pitch value of destination surface in BYTE */
unsigned int Bpp,    /* Color depth of destination surface */
unsigned int dx,
unsigned int dy,     /* Starting coordinate of destination surface */
unsigned int width,
unsigned int height, /* width and height of rectangle in pixel value */
unsigned int rop2)   /* ROP value */
{
	unsigned int nDirection, de_ctrl;

	nDirection = LEFT_TO_RIGHT;
	/* Direction of ROP2 operation: 1 = Left to Right, (-1) = Right to Left */
	de_ctrl = 0;

	/* If source and destination are the same surface, need to check for overlay cases */
	if (sBase == dBase && sPitch == dPitch) {
		/* Determine direction of operation */
		if (sy < dy) {
			/* +----------+
			 * |S         |
			 * |   +----------+
			 * |   |      |   |
			 * |   |      |   |
			 * +---|------+   |
			 * |         D|
			 * +----------+
			 */

			nDirection = BOTTOM_TO_TOP;
		} else if (sy > dy) {
			/* +----------+
			 * |D         |
			 * |   +----------+
			 * |   |      |   |
			 * |   |      |   |
			 * +---|------+   |
			 * |         S|
			 * +----------+
			 */

			nDirection = TOP_TO_BOTTOM;
		} else {
			/* sy == dy */

			if (sx <= dx) {
				/* +------+---+------+
				 * |S     |   |     D|
				 * |      |   |      |
				 * |      |   |      |
				 * |      |   |      |
				 * +------+---+------+
				 */

				nDirection = RIGHT_TO_LEFT;
			} else {
			/* sx > dx */

				/* +------+---+------+
				 * |D     |   |     S|
				 * |      |   |      |
				 * |      |   |      |
				 * |      |   |      |
				 * +------+---+------+
				 */

				nDirection = LEFT_TO_RIGHT;
			}
		}
	}

	if ((nDirection == BOTTOM_TO_TOP) || (nDirection == RIGHT_TO_LEFT)) {
		sx += width - 1;
		sy += height - 1;
		dx += width - 1;
		dy += height - 1;
	}

	/*
	 * Note:
	 * DE_FOREGROUND are DE_BACKGROUND are don't care.
	 * DE_COLOR_COMPARE and DE_COLOR_COMPARE_MAKS
	 * are set by set deSetTransparency().
	 */

	/*
	 * 2D Source Base.
	 * It is an address offset (128 bit aligned)
	 * from the beginning of frame buffer.
	 */
	write_dpr(accel, DE_WINDOW_SOURCE_BASE, sBase); /* dpr40 */

	/*
	 * 2D Destination Base.
	 * It is an address offset (128 bit aligned)
	 * from the beginning of frame buffer.
	 */
	write_dpr(accel, DE_WINDOW_DESTINATION_BASE, dBase); /* dpr44 */

    /*
     * Program pitch (distance between the 1st points of two adjacent lines).
     * Note that input pitch is BYTE value, but the 2D Pitch register uses
     * pixel values. Need Byte to pixel conversion.
     */
	write_dpr(accel, DE_PITCH,
		  ((dPitch / Bpp << DE_PITCH_DESTINATION_SHIFT) &
		   DE_PITCH_DESTINATION_MASK) |
		  (sPitch / Bpp & DE_PITCH_SOURCE_MASK)); /* dpr10 */

    /*
     * Screen Window width in Pixels.
     * 2D engine uses this value to calculate the linear address in frame buffer
     * for a given point.
     */
	write_dpr(accel, DE_WINDOW_WIDTH,
		  ((dPitch / Bpp << DE_WINDOW_WIDTH_DST_SHIFT) &
		   DE_WINDOW_WIDTH_DST_MASK) |
		  (sPitch / Bpp & DE_WINDOW_WIDTH_SRC_MASK)); /* dpr3c */

	if (accel->de_wait() != 0)
		return -1;

	write_dpr(accel, DE_SOURCE,
		  ((sx << DE_SOURCE_X_K1_SHIFT) & DE_SOURCE_X_K1_MASK) |
		  (sy & DE_SOURCE_Y_K2_MASK)); /* dpr0 */
	write_dpr(accel, DE_DESTINATION,
		  ((dx << DE_DESTINATION_X_SHIFT) & DE_DESTINATION_X_MASK) |
		  (dy & DE_DESTINATION_Y_MASK)); /* dpr04 */
	write_dpr(accel, DE_DIMENSION,
		  ((width << DE_DIMENSION_X_SHIFT) & DE_DIMENSION_X_MASK) |
		  (height & DE_DIMENSION_Y_ET_MASK)); /* dpr08 */

	de_ctrl = (rop2 & DE_CONTROL_ROP_MASK) | DE_CONTROL_ROP_SELECT |
		((nDirection == RIGHT_TO_LEFT) ? DE_CONTROL_DIRECTION : 0) |
		DE_CONTROL_COMMAND_BITBLT | DE_CONTROL_STATUS;
	write_dpr(accel, DE_CONTROL, de_ctrl); /* dpr0c */

	return 0;
}

static unsigned int deGetTransparency(struct lynx_accel *accel)
{
	unsigned int de_ctrl;

	de_ctrl = read_dpr(accel, DE_CONTROL);

	de_ctrl &= (DE_CONTROL_TRANSPARENCY_MATCH |
		    DE_CONTROL_TRANSPARENCY_SELECT | DE_CONTROL_TRANSPARENCY);

	return de_ctrl;
}

int sm750_hw_imageblit(struct lynx_accel *accel,
		 const char *pSrcbuf, /* pointer to start of source buffer in system memory */
		 u32 srcDelta,          /* Pitch value (in bytes) of the source buffer, +ive means top down and -ive mean button up */
		 u32 startBit, /* Mono data can start at any bit in a byte, this value should be 0 to 7 */
		 u32 dBase,    /* Address of destination: offset in frame buffer */
		 u32 dPitch,   /* Pitch value of destination surface in BYTE */
		 u32 bytePerPixel,      /* Color depth of destination surface */
		 u32 dx,
		 u32 dy,       /* Starting coordinate of destination surface */
		 u32 width,
		 u32 height,   /* width and height of rectangle in pixel value */
		 u32 fColor,   /* Foreground color (corresponding to a 1 in the monochrome data */
		 u32 bColor,   /* Background color (corresponding to a 0 in the monochrome data */
		 u32 rop2)     /* ROP value */
{
	unsigned int ulBytesPerScan;
	unsigned int ul4BytesPerScan;
	unsigned int ulBytesRemain;
	unsigned int de_ctrl = 0;
	unsigned char ajRemain[4];
	int i, j;

	startBit &= 7; /* Just make sure the start bit is within legal range */
	ulBytesPerScan = (width + startBit + 7) / 8;
	ul4BytesPerScan = ulBytesPerScan & ~3;
	ulBytesRemain = ulBytesPerScan & 3;

	if (accel->de_wait() != 0)
		return -1;

	/*
	 * 2D Source Base.
	 * Use 0 for HOST Blt.
	 */
	write_dpr(accel, DE_WINDOW_SOURCE_BASE, 0);

	/* 2D Destination Base.
	 * It is an address offset (128 bit aligned)
	 * from the beginning of frame buffer.
	 */
	write_dpr(accel, DE_WINDOW_DESTINATION_BASE, dBase);

	/*
	 * Program pitch (distance between the 1st points of two adjacent
	 * lines). Note that input pitch is BYTE value, but the 2D Pitch
	 * register uses pixel values. Need Byte to pixel conversion.
	 */
	write_dpr(accel, DE_PITCH,
		  ((dPitch / bytePerPixel << DE_PITCH_DESTINATION_SHIFT) &
		   DE_PITCH_DESTINATION_MASK) |
		  (dPitch / bytePerPixel & DE_PITCH_SOURCE_MASK)); /* dpr10 */

	/*
	 * Screen Window width in Pixels.
	 * 2D engine uses this value to calculate the linear address
	 * in frame buffer for a given point.
	 */
	write_dpr(accel, DE_WINDOW_WIDTH,
		  ((dPitch / bytePerPixel << DE_WINDOW_WIDTH_DST_SHIFT) &
		   DE_WINDOW_WIDTH_DST_MASK) |
		  (dPitch / bytePerPixel & DE_WINDOW_WIDTH_SRC_MASK));

	 /*
	  * Note: For 2D Source in Host Write, only X_K1_MONO field is needed,
	  * and Y_K2 field is not used.
	  * For mono bitmap, use startBit for X_K1.
	  */
	write_dpr(accel, DE_SOURCE,
		  (startBit << DE_SOURCE_X_K1_SHIFT) &
		  DE_SOURCE_X_K1_MONO_MASK); /* dpr00 */

	write_dpr(accel, DE_DESTINATION,
		  ((dx << DE_DESTINATION_X_SHIFT) & DE_DESTINATION_X_MASK) |
		  (dy & DE_DESTINATION_Y_MASK)); /* dpr04 */

	write_dpr(accel, DE_DIMENSION,
		  ((width << DE_DIMENSION_X_SHIFT) & DE_DIMENSION_X_MASK) |
		  (height & DE_DIMENSION_Y_ET_MASK)); /* dpr08 */

	write_dpr(accel, DE_FOREGROUND, fColor);
	write_dpr(accel, DE_BACKGROUND, bColor);

	de_ctrl = (rop2 & DE_CONTROL_ROP_MASK) |
		DE_CONTROL_ROP_SELECT | DE_CONTROL_COMMAND_HOST_WRITE |
		DE_CONTROL_HOST | DE_CONTROL_STATUS;

	write_dpr(accel, DE_CONTROL, de_ctrl | deGetTransparency(accel));

	/* Write MONO data (line by line) to 2D Engine data port */
	for (i = 0; i < height; i++) {
		/* For each line, send the data in chunks of 4 bytes */
		for (j = 0; j < (ul4BytesPerScan / 4); j++)
			write_dpPort(accel, *(unsigned int *)(pSrcbuf + (j * 4)));

		if (ulBytesRemain) {
			memcpy(ajRemain, pSrcbuf+ul4BytesPerScan, ulBytesRemain);
			write_dpPort(accel, *(unsigned int *)ajRemain);
		}

		pSrcbuf += srcDelta;
	}

	return 0;
}
Commit	Line	Data
67088d49 MR	1	#include <linux/module.h>
	2	#include <linux/kernel.h>
	3	#include <linux/errno.h>
	4	#include <linux/string.h>
	5	#include <linux/mm.h>
	6	#include <linux/slab.h>
	7	#include <linux/delay.h>
	8	#include <linux/fb.h>
	9	#include <linux/ioport.h>
	10	#include <linux/init.h>
	11	#include <linux/pci.h>
	12	#include <linux/vmalloc.h>
	13	#include <linux/pagemap.h>
81dee67e	14	#include <linux/console.h>
67088d49 MR	15	#include <linux/platform_device.h>
67088d49 MR	16	#include <linux/screen_info.h>
81dee67e SM	17
	18	#include "sm750.h"
	19	#include "sm750_accel.h"
eb0f4271	20	static inline void write_dpr(struct lynx_accel *accel, int offset, u32 regValue)
81dee67e	21	{
b5d63974	22	writel(regValue, accel->dprBase + offset);
81dee67e SM	23	}
81dee67e SM	24
eb0f4271	25	static inline u32 read_dpr(struct lynx_accel *accel, int offset)
81dee67e SM	26	{
	27	return readl(accel->dprBase + offset);
	28	}
	29
eb0f4271	30	static inline void write_dpPort(struct lynx_accel *accel, u32 data)
81dee67e	31	{
b5d63974	32	writel(data, accel->dpPortBase);
81dee67e SM	33	}
81dee67e SM	34
52d0744d	35	void sm750_hw_de_init(struct lynx_accel *accel)
81dee67e SM	36	{
81dee67e SM	37	/* setup 2d engine registers */
b5d63974	38	u32 reg, clr;
919ca7c6	39
b5d63974	40	write_dpr(accel, DE_MASKS, 0xFFFFFFFF);
81dee67e SM	41
81dee67e SM	42	/* dpr1c */
f7a61fde MR	43	reg = 0x3;
f7a61fde MR	44
c9750456 MD	45	clr = DE_STRETCH_FORMAT_PATTERN_XY \|
	46	DE_STRETCH_FORMAT_PATTERN_Y_MASK \|
	47	DE_STRETCH_FORMAT_PATTERN_X_MASK \|
	48	DE_STRETCH_FORMAT_ADDRESSING_MASK \|
	49	DE_STRETCH_FORMAT_SOURCE_HEIGHT_MASK;
81dee67e	50
fbb8c963	51	/* DE_STRETCH bpp format need be initialized in setMode routine */
f7a61fde MR	52	write_dpr(accel, DE_STRETCH_FORMAT,
f7a61fde MR	53	(read_dpr(accel, DE_STRETCH_FORMAT) & ~clr) \| reg);
81dee67e SM	54
81dee67e SM	55	/* disable clipping and transparent */
5ee35ea7 JL	56	write_dpr(accel, DE_CLIP_TL, 0); /* dpr2c */
5ee35ea7 JL	57	write_dpr(accel, DE_CLIP_BR, 0); /* dpr30 */
81dee67e	58
5ee35ea7	59	write_dpr(accel, DE_COLOR_COMPARE_MASK, 0); /* dpr24 */
b5d63974	60	write_dpr(accel, DE_COLOR_COMPARE, 0);
81dee67e	61
e2e22587 MR	62	clr = DE_CONTROL_TRANSPARENCY \| DE_CONTROL_TRANSPARENCY_MATCH \|
e2e22587 MR	63	DE_CONTROL_TRANSPARENCY_SELECT;
81dee67e SM	64
81dee67e SM	65	/* dpr0c */
e2e22587	66	write_dpr(accel, DE_CONTROL, read_dpr(accel, DE_CONTROL) & ~clr);
81dee67e SM	67	}
81dee67e SM	68
f5016082 ES	69	/*
f5016082 ES	70	* set2dformat only be called from setmode functions
81dee67e	71	* but if you need dual framebuffer driver,need call set2dformat
35e4d8ca EF	72	* every time you use 2d function
35e4d8ca EF	73	*/
81dee67e	74
52d0744d	75	void sm750_hw_set2dformat(struct lynx_accel *accel, int fmt)
81dee67e SM	76	{
81dee67e SM	77	u32 reg;
919ca7c6	78
81dee67e	79	/* fmt=0,1,2 for 8,16,32,bpp on sm718/750/502 */
b5d63974	80	reg = read_dpr(accel, DE_STRETCH_FORMAT);
f7a61fde MR	81	reg &= ~DE_STRETCH_FORMAT_PIXEL_FORMAT_MASK;
	82	reg \|= ((fmt << DE_STRETCH_FORMAT_PIXEL_FORMAT_SHIFT) &
	83	DE_STRETCH_FORMAT_PIXEL_FORMAT_MASK);
b5d63974	84	write_dpr(accel, DE_STRETCH_FORMAT, reg);
81dee67e SM	85	}
81dee67e SM	86
52d0744d	87	int sm750_hw_fillrect(struct lynx_accel *accel,
c9750456 MD	88	u32 base, u32 pitch, u32 Bpp,
	89	u32 x, u32 y, u32 width, u32 height,
	90	u32 color, u32 rop)
81dee67e SM	91	{
	92	u32 deCtrl;
	93
259fef35	94	if (accel->de_wait() != 0) {
f5016082 ES	95	/*
f5016082 ES	96	* int time wait and always busy,seems hardware
35e4d8ca EF	97	* got something error
35e4d8ca EF	98	*/
7211f6f7	99	pr_debug("De engine always busy\n");
81dee67e SM	100	return -1;
	101	}
	102
5ee35ea7	103	write_dpr(accel, DE_WINDOW_DESTINATION_BASE, base); /* dpr40 */
b5d63974	104	write_dpr(accel, DE_PITCH,
7124080f MR	105	((pitch / Bpp << DE_PITCH_DESTINATION_SHIFT) &
	106	DE_PITCH_DESTINATION_MASK) \|
	107	(pitch / Bpp & DE_PITCH_SOURCE_MASK)); /* dpr10 */
81dee67e	108
b5d63974	109	write_dpr(accel, DE_WINDOW_WIDTH,
8bac9c84 MR	110	((pitch / Bpp << DE_WINDOW_WIDTH_DST_SHIFT) &
	111	DE_WINDOW_WIDTH_DST_MASK) \|
	112	(pitch / Bpp & DE_WINDOW_WIDTH_SRC_MASK)); /* dpr44 */
81dee67e	113
5ee35ea7	114	write_dpr(accel, DE_FOREGROUND, color); /* DPR14 */
81dee67e	115
b5d63974	116	write_dpr(accel, DE_DESTINATION,
aeaab186 MR	117	((x << DE_DESTINATION_X_SHIFT) & DE_DESTINATION_X_MASK) \|
aeaab186 MR	118	(y & DE_DESTINATION_Y_MASK)); /* dpr4 */
81dee67e	119
b5d63974	120	write_dpr(accel, DE_DIMENSION,
0fab34b5 MR	121	((width << DE_DIMENSION_X_SHIFT) & DE_DIMENSION_X_MASK) \|
0fab34b5 MR	122	(height & DE_DIMENSION_Y_ET_MASK)); /* dpr8 */
81dee67e	123
e2e22587 MR	124	deCtrl = DE_CONTROL_STATUS \| DE_CONTROL_LAST_PIXEL \|
	125	DE_CONTROL_COMMAND_RECTANGLE_FILL \| DE_CONTROL_ROP_SELECT \|
	126	(rop & DE_CONTROL_ROP_MASK); /* dpr0xc */
b5d63974 IA	127
b5d63974 IA	128	write_dpr(accel, DE_CONTROL, deCtrl);
81dee67e SM	129	return 0;
	130	}
	131
52d0744d	132	int sm750_hw_copyarea(
eb0f4271	133	struct lynx_accel *accel,
81dee67e SM	134	unsigned int sBase, /* Address of source: offset in frame buffer */
	135	unsigned int sPitch, /* Pitch value of source surface in BYTE */
	136	unsigned int sx,
	137	unsigned int sy, /* Starting coordinate of source surface */
	138	unsigned int dBase, /* Address of destination: offset in frame buffer */
	139	unsigned int dPitch, /* Pitch value of destination surface in BYTE */
	140	unsigned int Bpp, /* Color depth of destination surface */
	141	unsigned int dx,
	142	unsigned int dy, /* Starting coordinate of destination surface */
	143	unsigned int width,
	144	unsigned int height, /* width and height of rectangle in pixel value */
	145	unsigned int rop2) /* ROP value */
	146	{
78376535	147	unsigned int nDirection, de_ctrl;
40403c1b	148
78376535	149	nDirection = LEFT_TO_RIGHT;
81dee67e	150	/* Direction of ROP2 operation: 1 = Left to Right, (-1) = Right to Left */
78376535	151	de_ctrl = 0;
81dee67e	152
78376535	153	/* If source and destination are the same surface, need to check for overlay cases */
259fef35	154	if (sBase == dBase && sPitch == dPitch) {
78376535	155	/* Determine direction of operation */
259fef35	156	if (sy < dy) {
78376535	157	/* +----------+
35e4d8ca EF	158	* \|S \|
	159	* \| +----------+
	160	* \| \| \| \|
	161	* \| \| \| \|
	162	* +---\|------+ \|
	163	* \| D\|
	164	* +----------+
	165	*/
78376535 JL	166
78376535 JL	167	nDirection = BOTTOM_TO_TOP;
259fef35	168	} else if (sy > dy) {
78376535	169	/* +----------+
35e4d8ca EF	170	* \|D \|
	171	* \| +----------+
	172	* \| \| \| \|
	173	* \| \| \| \|
	174	* +---\|------+ \|
	175	* \| S\|
	176	* +----------+
	177	*/
78376535 JL	178
78376535 JL	179	nDirection = TOP_TO_BOTTOM;
259fef35	180	} else {
78376535 JL	181	/* sy == dy */
78376535 JL	182
259fef35	183	if (sx <= dx) {
78376535	184	/* +------+---+------+
35e4d8ca EF	185	* \|S \| \| D\|
	186	* \| \| \| \|
	187	* \| \| \| \|
	188	* \| \| \| \|
	189	* +------+---+------+
	190	*/
78376535 JL	191
78376535 JL	192	nDirection = RIGHT_TO_LEFT;
259fef35	193	} else {
78376535 JL	194	/* sx > dx */
	195
	196	/* +------+---+------+
35e4d8ca EF	197	* \|D \| \| S\|
	198	* \| \| \| \|
	199	* \| \| \| \|
	200	* \| \| \| \|
	201	* +------+---+------+
	202	*/
78376535 JL	203
	204	nDirection = LEFT_TO_RIGHT;
	205	}
	206	}
	207	}
81dee67e	208
259fef35	209	if ((nDirection == BOTTOM_TO_TOP) \|\| (nDirection == RIGHT_TO_LEFT)) {
78376535 JL	210	sx += width - 1;
	211	sy += height - 1;
	212	dx += width - 1;
	213	dy += height - 1;
78376535 JL	214	}
78376535 JL	215
f5016082 ES	216	/*
f5016082 ES	217	* Note:
35e4d8ca EF	218	* DE_FOREGROUND are DE_BACKGROUND are don't care.
	219	* DE_COLOR_COMPARE and DE_COLOR_COMPARE_MAKS
	220	* are set by set deSetTransparency().
78376535 JL	221	*/
78376535 JL	222
f5016082 ES	223	/*
f5016082 ES	224	* 2D Source Base.
35e4d8ca EF	225	* It is an address offset (128 bit aligned)
35e4d8ca EF	226	* from the beginning of frame buffer.
78376535 JL	227	*/
	228	write_dpr(accel, DE_WINDOW_SOURCE_BASE, sBase); /* dpr40 */
	229
f5016082 ES	230	/*
f5016082 ES	231	* 2D Destination Base.
35e4d8ca EF	232	* It is an address offset (128 bit aligned)
35e4d8ca EF	233	* from the beginning of frame buffer.
78376535 JL	234	*/
78376535 JL	235	write_dpr(accel, DE_WINDOW_DESTINATION_BASE, dBase); /* dpr44 */
81dee67e	236
f5016082 ES	237	/*
f5016082 ES	238	* Program pitch (distance between the 1st points of two adjacent lines).
35e4d8ca EF	239	* Note that input pitch is BYTE value, but the 2D Pitch register uses
	240	* pixel values. Need Byte to pixel conversion.
	241	*/
7124080f MR	242	write_dpr(accel, DE_PITCH,
	243	((dPitch / Bpp << DE_PITCH_DESTINATION_SHIFT) &
	244	DE_PITCH_DESTINATION_MASK) \|
	245	(sPitch / Bpp & DE_PITCH_SOURCE_MASK)); /* dpr10 */
81dee67e	246
f5016082 ES	247	/*
f5016082 ES	248	* Screen Window width in Pixels.
35e4d8ca EF	249	* 2D engine uses this value to calculate the linear address in frame buffer
	250	* for a given point.
	251	*/
78376535	252	write_dpr(accel, DE_WINDOW_WIDTH,
8bac9c84 MR	253	((dPitch / Bpp << DE_WINDOW_WIDTH_DST_SHIFT) &
	254	DE_WINDOW_WIDTH_DST_MASK) \|
	255	(sPitch / Bpp & DE_WINDOW_WIDTH_SRC_MASK)); /* dpr3c */
81dee67e	256
7b05cbe8	257	if (accel->de_wait() != 0)
81dee67e	258	return -1;
81dee67e	259
78376535	260	write_dpr(accel, DE_SOURCE,
cf6d8f0b MR	261	((sx << DE_SOURCE_X_K1_SHIFT) & DE_SOURCE_X_K1_MASK) \|
cf6d8f0b MR	262	(sy & DE_SOURCE_Y_K2_MASK)); /* dpr0 */
78376535	263	write_dpr(accel, DE_DESTINATION,
aeaab186 MR	264	((dx << DE_DESTINATION_X_SHIFT) & DE_DESTINATION_X_MASK) \|
aeaab186 MR	265	(dy & DE_DESTINATION_Y_MASK)); /* dpr04 */
78376535	266	write_dpr(accel, DE_DIMENSION,
0fab34b5 MR	267	((width << DE_DIMENSION_X_SHIFT) & DE_DIMENSION_X_MASK) \|
0fab34b5 MR	268	(height & DE_DIMENSION_Y_ET_MASK)); /* dpr08 */
78376535	269
e2e22587 MR	270	de_ctrl = (rop2 & DE_CONTROL_ROP_MASK) \| DE_CONTROL_ROP_SELECT \|
	271	((nDirection == RIGHT_TO_LEFT) ? DE_CONTROL_DIRECTION : 0) \|
	272	DE_CONTROL_COMMAND_BITBLT \| DE_CONTROL_STATUS;
78376535 JL	273	write_dpr(accel, DE_CONTROL, de_ctrl); /* dpr0c */
78376535 JL	274
78376535	275	return 0;
81dee67e SM	276	}
81dee67e SM	277
eb0f4271	278	static unsigned int deGetTransparency(struct lynx_accel *accel)
81dee67e	279	{
78376535	280	unsigned int de_ctrl;
81dee67e	281
78376535	282	de_ctrl = read_dpr(accel, DE_CONTROL);
81dee67e	283
e2e22587 MR	284	de_ctrl &= (DE_CONTROL_TRANSPARENCY_MATCH \|
e2e22587 MR	285	DE_CONTROL_TRANSPARENCY_SELECT \| DE_CONTROL_TRANSPARENCY);
81dee67e	286
78376535	287	return de_ctrl;
81dee67e SM	288	}
81dee67e SM	289
52d0744d	290	int sm750_hw_imageblit(struct lynx_accel *accel,
7c6f3fdc GKH	291	const char pSrcbuf, / pointer to start of source buffer in system memory */
	292	u32 srcDelta, /* Pitch value (in bytes) of the source buffer, +ive means top down and -ive mean button up */
	293	u32 startBit, /* Mono data can start at any bit in a byte, this value should be 0 to 7 */
	294	u32 dBase, /* Address of destination: offset in frame buffer */
	295	u32 dPitch, /* Pitch value of destination surface in BYTE */
	296	u32 bytePerPixel, /* Color depth of destination surface */
	297	u32 dx,
	298	u32 dy, /* Starting coordinate of destination surface */
	299	u32 width,
fbb8c963	300	u32 height, /* width and height of rectangle in pixel value */
7c6f3fdc GKH	301	u32 fColor, /* Foreground color (corresponding to a 1 in the monochrome data */
	302	u32 bColor, /* Background color (corresponding to a 0 in the monochrome data */
	303	u32 rop2) /* ROP value */
81dee67e	304	{
78376535 JL	305	unsigned int ulBytesPerScan;
	306	unsigned int ul4BytesPerScan;
	307	unsigned int ulBytesRemain;
	308	unsigned int de_ctrl = 0;
	309	unsigned char ajRemain[4];
	310	int i, j;
	311
	312	startBit &= 7; /* Just make sure the start bit is within legal range */
	313	ulBytesPerScan = (width + startBit + 7) / 8;
	314	ul4BytesPerScan = ulBytesPerScan & ~3;
	315	ulBytesRemain = ulBytesPerScan & 3;
81dee67e	316
7b05cbe8	317	if (accel->de_wait() != 0)
78376535	318	return -1;
81dee67e	319
f5016082 ES	320	/*
f5016082 ES	321	* 2D Source Base.
35e4d8ca	322	* Use 0 for HOST Blt.
78376535 JL	323	*/
78376535 JL	324	write_dpr(accel, DE_WINDOW_SOURCE_BASE, 0);
81dee67e	325
78376535	326	/* 2D Destination Base.
35e4d8ca EF	327	* It is an address offset (128 bit aligned)
35e4d8ca EF	328	* from the beginning of frame buffer.
78376535 JL	329	*/
78376535 JL	330	write_dpr(accel, DE_WINDOW_DESTINATION_BASE, dBase);
f5016082 ES	331
	332	/*
	333	* Program pitch (distance between the 1st points of two adjacent
	334	* lines). Note that input pitch is BYTE value, but the 2D Pitch
	335	* register uses pixel values. Need Byte to pixel conversion.
	336	*/
7124080f MR	337	write_dpr(accel, DE_PITCH,
	338	((dPitch / bytePerPixel << DE_PITCH_DESTINATION_SHIFT) &
	339	DE_PITCH_DESTINATION_MASK) \|
	340	(dPitch / bytePerPixel & DE_PITCH_SOURCE_MASK)); /* dpr10 */
81dee67e	341
f5016082 ES	342	/*
f5016082 ES	343	* Screen Window width in Pixels.
35e4d8ca EF	344	* 2D engine uses this value to calculate the linear address
35e4d8ca EF	345	* in frame buffer for a given point.
78376535 JL	346	*/
78376535 JL	347	write_dpr(accel, DE_WINDOW_WIDTH,
8bac9c84 MR	348	((dPitch / bytePerPixel << DE_WINDOW_WIDTH_DST_SHIFT) &
	349	DE_WINDOW_WIDTH_DST_MASK) \|
	350	(dPitch / bytePerPixel & DE_WINDOW_WIDTH_SRC_MASK));
81dee67e	351
f5016082 ES	352	/*
f5016082 ES	353	* Note: For 2D Source in Host Write, only X_K1_MONO field is needed,
35e4d8ca EF	354	* and Y_K2 field is not used.
	355	* For mono bitmap, use startBit for X_K1.
	356	*/
78376535	357	write_dpr(accel, DE_SOURCE,
cf6d8f0b MR	358	(startBit << DE_SOURCE_X_K1_SHIFT) &
cf6d8f0b MR	359	DE_SOURCE_X_K1_MONO_MASK); /* dpr00 */
81dee67e	360
78376535	361	write_dpr(accel, DE_DESTINATION,
aeaab186 MR	362	((dx << DE_DESTINATION_X_SHIFT) & DE_DESTINATION_X_MASK) \|
aeaab186 MR	363	(dy & DE_DESTINATION_Y_MASK)); /* dpr04 */
81dee67e	364
78376535	365	write_dpr(accel, DE_DIMENSION,
0fab34b5 MR	366	((width << DE_DIMENSION_X_SHIFT) & DE_DIMENSION_X_MASK) \|
0fab34b5 MR	367	(height & DE_DIMENSION_Y_ET_MASK)); /* dpr08 */
81dee67e	368
78376535 JL	369	write_dpr(accel, DE_FOREGROUND, fColor);
78376535 JL	370	write_dpr(accel, DE_BACKGROUND, bColor);
81dee67e	371
e2e22587 MR	372	de_ctrl = (rop2 & DE_CONTROL_ROP_MASK) \|
	373	DE_CONTROL_ROP_SELECT \| DE_CONTROL_COMMAND_HOST_WRITE \|
	374	DE_CONTROL_HOST \| DE_CONTROL_STATUS;
81dee67e	375
b5d63974	376	write_dpr(accel, DE_CONTROL, de_ctrl \| deGetTransparency(accel));
81dee67e	377
78376535	378	/* Write MONO data (line by line) to 2D Engine data port */
259fef35	379	for (i = 0; i < height; i++) {
78376535	380	/* For each line, send the data in chunks of 4 bytes */
dca633d4	381	for (j = 0; j < (ul4BytesPerScan / 4); j++)
78376535	382	write_dpPort(accel, (unsigned int )(pSrcbuf + (j * 4)));
78376535	383
259fef35	384	if (ulBytesRemain) {
78376535 JL	385	memcpy(ajRemain, pSrcbuf+ul4BytesPerScan, ulBytesRemain);
	386	write_dpPort(accel, (unsigned int )ajRemain);
	387	}
	388
	389	pSrcbuf += srcDelta;
	390	}
	391
f1706cb7	392	return 0;
81dee67e SM	393	}
81dee67e SM	394