diff options
Diffstat (limited to 'drivers/staging/sm750fb/sm750_accel.c')
| -rw-r--r-- | drivers/staging/sm750fb/sm750_accel.c | 94 |
1 files changed, 55 insertions, 39 deletions
diff --git a/drivers/staging/sm750fb/sm750_accel.c b/drivers/staging/sm750fb/sm750_accel.c index dbcbbd1055da..8faa601c700b 100644 --- a/drivers/staging/sm750fb/sm750_accel.c +++ b/drivers/staging/sm750fb/sm750_accel.c @@ -130,20 +130,28 @@ int sm750_hw_fillrect(struct lynx_accel *accel, 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 */ +/** + * sm750_hm_copyarea + * @sBase: Address of source: offset in frame buffer + * @sPitch: Pitch value of source surface in BYTE + * @sx: Starting x coordinate of source surface + * @sy: Starting y coordinate of source surface + * @dBase: Address of destination: offset in frame buffer + * @dPitch: Pitch value of destination surface in BYTE + * @Bpp: Color depth of destination surface + * @dx: Starting x coordinate of destination surface + * @dy: Starting y coordinate of destination surface + * @width: width of rectangle in pixel value + * @height: height of rectangle in pixel value + * @rop2: ROP value + */ +int sm750_hw_copyarea(struct lynx_accel *accel, + unsigned int sBase, unsigned int sPitch, + unsigned int sx, unsigned int sy, + unsigned int dBase, unsigned int dPitch, + unsigned int Bpp, unsigned int dx, unsigned int dy, + unsigned int width, unsigned int height, + unsigned int rop2) { unsigned int nDirection, de_ctrl; @@ -216,7 +224,7 @@ unsigned int rop2) /* ROP value */ /* * Note: - * DE_FOREGROUND are DE_BACKGROUND are don't care. + * DE_FOREGROUND and DE_BACKGROUND are don't care. * DE_COLOR_COMPARE and DE_COLOR_COMPARE_MAKS * are set by set deSetTransparency(). */ @@ -235,21 +243,21 @@ unsigned int rop2) /* ROP value */ */ 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. - */ + /* + * 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. - */ + /* + * 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) | @@ -288,20 +296,28 @@ static unsigned int deGetTransparency(struct lynx_accel *accel) 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 */ +/** + * sm750_hw_imageblit + * @pSrcbuf: pointer to start of source buffer in system memory + * @srcDelta: Pitch value (in bytes) of the source buffer, +ive means top down + * and -ive mean button up + * @startBit: Mono data can start at any bit in a byte, this value should be + * 0 to 7 + * @dBase: Address of destination: offset in frame buffer + * @dPitch: Pitch value of destination surface in BYTE + * @bytePerPixel: Color depth of destination surface + * @dx: Starting x coordinate of destination surface + * @dy: Starting y coordinate of destination surface + * @width: width of rectangle in pixel value + * @height: height of rectangle in pixel value + * @fColor: Foreground color (corresponding to a 1 in the monochrome data + * @bColor: Background color (corresponding to a 0 in the monochrome data + * @rop2: ROP value + */ +int sm750_hw_imageblit(struct lynx_accel *accel, const char *pSrcbuf, + u32 srcDelta, u32 startBit, u32 dBase, u32 dPitch, + u32 bytePerPixel, u32 dx, u32 dy, u32 width, + u32 height, u32 fColor, u32 bColor, u32 rop2) { unsigned int ulBytesPerScan; unsigned int ul4BytesPerScan; |