![Andrea Ghittino](/assets/img/avatar_default.png)
Fixes sm750fb tabstop style warning found by checkpatch.pl tool Signed-off-by: Andrea Ghittino <aghittino@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
401 lines
11 KiB
C
401 lines
11 KiB
C
#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/string.h>
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#include <linux/mm.h>
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#include <linux/slab.h>
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#include <linux/delay.h>
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#include <linux/fb.h>
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#include <linux/ioport.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/vmalloc.h>
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#include <linux/pagemap.h>
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#include <linux/console.h>
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#include <linux/platform_device.h>
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#include <linux/screen_info.h>
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#include "sm750.h"
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#include "sm750_accel.h"
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static inline void write_dpr(struct lynx_accel *accel, int offset, u32 regValue)
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{
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writel(regValue, accel->dprBase + offset);
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}
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static inline u32 read_dpr(struct lynx_accel *accel, int offset)
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{
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return readl(accel->dprBase + offset);
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}
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static inline void write_dpPort(struct lynx_accel *accel, u32 data)
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{
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writel(data, accel->dpPortBase);
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}
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void sm750_hw_de_init(struct lynx_accel *accel)
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{
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/* setup 2d engine registers */
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u32 reg, clr;
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write_dpr(accel, DE_MASKS, 0xFFFFFFFF);
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/* dpr1c */
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reg = 0x3;
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clr = DE_STRETCH_FORMAT_PATTERN_XY | DE_STRETCH_FORMAT_PATTERN_Y_MASK |
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DE_STRETCH_FORMAT_PATTERN_X_MASK |
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DE_STRETCH_FORMAT_ADDRESSING_MASK |
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DE_STRETCH_FORMAT_SOURCE_HEIGHT_MASK;
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/* DE_STRETCH bpp format need be initialized in setMode routine */
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write_dpr(accel, DE_STRETCH_FORMAT,
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(read_dpr(accel, DE_STRETCH_FORMAT) & ~clr) | reg);
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/* disable clipping and transparent */
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write_dpr(accel, DE_CLIP_TL, 0); /* dpr2c */
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write_dpr(accel, DE_CLIP_BR, 0); /* dpr30 */
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write_dpr(accel, DE_COLOR_COMPARE_MASK, 0); /* dpr24 */
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write_dpr(accel, DE_COLOR_COMPARE, 0);
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clr = DE_CONTROL_TRANSPARENCY | DE_CONTROL_TRANSPARENCY_MATCH |
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DE_CONTROL_TRANSPARENCY_SELECT;
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/* dpr0c */
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write_dpr(accel, DE_CONTROL, read_dpr(accel, DE_CONTROL) & ~clr);
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}
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/*
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* set2dformat only be called from setmode functions
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* but if you need dual framebuffer driver,need call set2dformat
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* every time you use 2d function
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*/
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void sm750_hw_set2dformat(struct lynx_accel *accel, int fmt)
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{
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u32 reg;
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/* fmt=0,1,2 for 8,16,32,bpp on sm718/750/502 */
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reg = read_dpr(accel, DE_STRETCH_FORMAT);
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reg &= ~DE_STRETCH_FORMAT_PIXEL_FORMAT_MASK;
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reg |= ((fmt << DE_STRETCH_FORMAT_PIXEL_FORMAT_SHIFT) &
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DE_STRETCH_FORMAT_PIXEL_FORMAT_MASK);
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write_dpr(accel, DE_STRETCH_FORMAT, reg);
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}
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int sm750_hw_fillrect(struct lynx_accel *accel,
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u32 base, u32 pitch, u32 Bpp,
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u32 x, u32 y, u32 width, u32 height,
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u32 color, u32 rop)
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{
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u32 deCtrl;
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if (accel->de_wait() != 0) {
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/*
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* int time wait and always busy,seems hardware
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* got something error
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*/
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pr_debug("De engine always busy\n");
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return -1;
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}
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write_dpr(accel, DE_WINDOW_DESTINATION_BASE, base); /* dpr40 */
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write_dpr(accel, DE_PITCH,
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((pitch / Bpp << DE_PITCH_DESTINATION_SHIFT) &
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DE_PITCH_DESTINATION_MASK) |
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(pitch / Bpp & DE_PITCH_SOURCE_MASK)); /* dpr10 */
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write_dpr(accel, DE_WINDOW_WIDTH,
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((pitch / Bpp << DE_WINDOW_WIDTH_DST_SHIFT) &
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DE_WINDOW_WIDTH_DST_MASK) |
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(pitch / Bpp & DE_WINDOW_WIDTH_SRC_MASK)); /* dpr44 */
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write_dpr(accel, DE_FOREGROUND, color); /* DPR14 */
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write_dpr(accel, DE_DESTINATION,
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((x << DE_DESTINATION_X_SHIFT) & DE_DESTINATION_X_MASK) |
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(y & DE_DESTINATION_Y_MASK)); /* dpr4 */
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write_dpr(accel, DE_DIMENSION,
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((width << DE_DIMENSION_X_SHIFT) & DE_DIMENSION_X_MASK) |
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(height & DE_DIMENSION_Y_ET_MASK)); /* dpr8 */
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deCtrl = DE_CONTROL_STATUS | DE_CONTROL_LAST_PIXEL |
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DE_CONTROL_COMMAND_RECTANGLE_FILL | DE_CONTROL_ROP_SELECT |
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(rop & DE_CONTROL_ROP_MASK); /* dpr0xc */
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write_dpr(accel, DE_CONTROL, deCtrl);
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return 0;
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}
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int sm750_hw_copyarea(
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struct lynx_accel *accel,
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unsigned int sBase, /* Address of source: offset in frame buffer */
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unsigned int sPitch, /* Pitch value of source surface in BYTE */
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unsigned int sx,
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unsigned int sy, /* Starting coordinate of source surface */
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unsigned int dBase, /* Address of destination: offset in frame buffer */
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unsigned int dPitch, /* Pitch value of destination surface in BYTE */
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unsigned int Bpp, /* Color depth of destination surface */
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unsigned int dx,
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unsigned int dy, /* Starting coordinate of destination surface */
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unsigned int width,
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unsigned int height, /* width and height of rectangle in pixel value */
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unsigned int rop2) /* ROP value */
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{
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unsigned int nDirection, de_ctrl;
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int opSign;
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nDirection = LEFT_TO_RIGHT;
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/* Direction of ROP2 operation: 1 = Left to Right, (-1) = Right to Left */
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opSign = 1;
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de_ctrl = 0;
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/* If source and destination are the same surface, need to check for overlay cases */
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if (sBase == dBase && sPitch == dPitch) {
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/* Determine direction of operation */
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if (sy < dy) {
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/* +----------+
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* |S |
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* | +----------+
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* | | | |
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* | | | |
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* +---|------+ |
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* | D|
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* +----------+
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*/
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nDirection = BOTTOM_TO_TOP;
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} else if (sy > dy) {
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/* +----------+
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* |D |
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* | +----------+
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* | | | |
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* | | | |
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* +---|------+ |
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* | S|
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* +----------+
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*/
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nDirection = TOP_TO_BOTTOM;
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} else {
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/* sy == dy */
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if (sx <= dx) {
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/* +------+---+------+
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* |S | | D|
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* | | | |
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* | | | |
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* | | | |
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* +------+---+------+
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*/
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nDirection = RIGHT_TO_LEFT;
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} else {
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/* sx > dx */
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/* +------+---+------+
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* |D | | S|
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* | | | |
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* | | | |
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* | | | |
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* +------+---+------+
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*/
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nDirection = LEFT_TO_RIGHT;
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}
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}
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}
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if ((nDirection == BOTTOM_TO_TOP) || (nDirection == RIGHT_TO_LEFT)) {
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sx += width - 1;
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sy += height - 1;
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dx += width - 1;
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dy += height - 1;
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opSign = (-1);
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}
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/*
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* Note:
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* DE_FOREGROUND are DE_BACKGROUND are don't care.
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* DE_COLOR_COMPARE and DE_COLOR_COMPARE_MAKS
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* are set by set deSetTransparency().
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*/
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/*
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* 2D Source Base.
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* It is an address offset (128 bit aligned)
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* from the beginning of frame buffer.
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*/
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write_dpr(accel, DE_WINDOW_SOURCE_BASE, sBase); /* dpr40 */
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/*
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* 2D Destination Base.
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* It is an address offset (128 bit aligned)
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* from the beginning of frame buffer.
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*/
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write_dpr(accel, DE_WINDOW_DESTINATION_BASE, dBase); /* dpr44 */
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/*
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* Program pitch (distance between the 1st points of two adjacent lines).
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* Note that input pitch is BYTE value, but the 2D Pitch register uses
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* pixel values. Need Byte to pixel conversion.
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*/
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write_dpr(accel, DE_PITCH,
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((dPitch / Bpp << DE_PITCH_DESTINATION_SHIFT) &
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DE_PITCH_DESTINATION_MASK) |
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(sPitch / Bpp & DE_PITCH_SOURCE_MASK)); /* dpr10 */
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/*
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* Screen Window width in Pixels.
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* 2D engine uses this value to calculate the linear address in frame buffer
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* for a given point.
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*/
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write_dpr(accel, DE_WINDOW_WIDTH,
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((dPitch / Bpp << DE_WINDOW_WIDTH_DST_SHIFT) &
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DE_WINDOW_WIDTH_DST_MASK) |
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(sPitch / Bpp & DE_WINDOW_WIDTH_SRC_MASK)); /* dpr3c */
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if (accel->de_wait() != 0)
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return -1;
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{
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write_dpr(accel, DE_SOURCE,
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((sx << DE_SOURCE_X_K1_SHIFT) & DE_SOURCE_X_K1_MASK) |
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(sy & DE_SOURCE_Y_K2_MASK)); /* dpr0 */
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write_dpr(accel, DE_DESTINATION,
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((dx << DE_DESTINATION_X_SHIFT) & DE_DESTINATION_X_MASK) |
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(dy & DE_DESTINATION_Y_MASK)); /* dpr04 */
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write_dpr(accel, DE_DIMENSION,
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((width << DE_DIMENSION_X_SHIFT) & DE_DIMENSION_X_MASK) |
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(height & DE_DIMENSION_Y_ET_MASK)); /* dpr08 */
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de_ctrl = (rop2 & DE_CONTROL_ROP_MASK) | DE_CONTROL_ROP_SELECT |
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((nDirection == RIGHT_TO_LEFT) ? DE_CONTROL_DIRECTION : 0) |
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DE_CONTROL_COMMAND_BITBLT | DE_CONTROL_STATUS;
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write_dpr(accel, DE_CONTROL, de_ctrl); /* dpr0c */
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}
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return 0;
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}
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static unsigned int deGetTransparency(struct lynx_accel *accel)
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{
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unsigned int de_ctrl;
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de_ctrl = read_dpr(accel, DE_CONTROL);
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de_ctrl &= (DE_CONTROL_TRANSPARENCY_MATCH |
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DE_CONTROL_TRANSPARENCY_SELECT | DE_CONTROL_TRANSPARENCY);
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return de_ctrl;
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}
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int sm750_hw_imageblit(struct lynx_accel *accel,
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const char *pSrcbuf, /* pointer to start of source buffer in system memory */
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u32 srcDelta, /* Pitch value (in bytes) of the source buffer, +ive means top down and -ive mean button up */
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u32 startBit, /* Mono data can start at any bit in a byte, this value should be 0 to 7 */
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u32 dBase, /* Address of destination: offset in frame buffer */
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u32 dPitch, /* Pitch value of destination surface in BYTE */
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u32 bytePerPixel, /* Color depth of destination surface */
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u32 dx,
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u32 dy, /* Starting coordinate of destination surface */
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u32 width,
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u32 height, /* width and height of rectangle in pixel value */
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u32 fColor, /* Foreground color (corresponding to a 1 in the monochrome data */
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u32 bColor, /* Background color (corresponding to a 0 in the monochrome data */
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u32 rop2) /* ROP value */
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{
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unsigned int ulBytesPerScan;
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unsigned int ul4BytesPerScan;
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unsigned int ulBytesRemain;
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unsigned int de_ctrl = 0;
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unsigned char ajRemain[4];
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int i, j;
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startBit &= 7; /* Just make sure the start bit is within legal range */
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ulBytesPerScan = (width + startBit + 7) / 8;
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ul4BytesPerScan = ulBytesPerScan & ~3;
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ulBytesRemain = ulBytesPerScan & 3;
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if (accel->de_wait() != 0)
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return -1;
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/*
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* 2D Source Base.
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* Use 0 for HOST Blt.
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*/
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write_dpr(accel, DE_WINDOW_SOURCE_BASE, 0);
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/* 2D Destination Base.
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* It is an address offset (128 bit aligned)
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* from the beginning of frame buffer.
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*/
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write_dpr(accel, DE_WINDOW_DESTINATION_BASE, dBase);
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/*
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* Program pitch (distance between the 1st points of two adjacent
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* lines). Note that input pitch is BYTE value, but the 2D Pitch
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* register uses pixel values. Need Byte to pixel conversion.
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*/
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write_dpr(accel, DE_PITCH,
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((dPitch / bytePerPixel << DE_PITCH_DESTINATION_SHIFT) &
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DE_PITCH_DESTINATION_MASK) |
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(dPitch / bytePerPixel & DE_PITCH_SOURCE_MASK)); /* dpr10 */
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/*
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* Screen Window width in Pixels.
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* 2D engine uses this value to calculate the linear address
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* in frame buffer for a given point.
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*/
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write_dpr(accel, DE_WINDOW_WIDTH,
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((dPitch / bytePerPixel << DE_WINDOW_WIDTH_DST_SHIFT) &
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DE_WINDOW_WIDTH_DST_MASK) |
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(dPitch / bytePerPixel & DE_WINDOW_WIDTH_SRC_MASK));
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/*
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* Note: For 2D Source in Host Write, only X_K1_MONO field is needed,
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* and Y_K2 field is not used.
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* For mono bitmap, use startBit for X_K1.
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*/
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write_dpr(accel, DE_SOURCE,
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(startBit << DE_SOURCE_X_K1_SHIFT) &
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DE_SOURCE_X_K1_MONO_MASK); /* dpr00 */
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write_dpr(accel, DE_DESTINATION,
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((dx << DE_DESTINATION_X_SHIFT) & DE_DESTINATION_X_MASK) |
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(dy & DE_DESTINATION_Y_MASK)); /* dpr04 */
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write_dpr(accel, DE_DIMENSION,
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((width << DE_DIMENSION_X_SHIFT) & DE_DIMENSION_X_MASK) |
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(height & DE_DIMENSION_Y_ET_MASK)); /* dpr08 */
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write_dpr(accel, DE_FOREGROUND, fColor);
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write_dpr(accel, DE_BACKGROUND, bColor);
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de_ctrl = (rop2 & DE_CONTROL_ROP_MASK) |
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DE_CONTROL_ROP_SELECT | DE_CONTROL_COMMAND_HOST_WRITE |
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DE_CONTROL_HOST | DE_CONTROL_STATUS;
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write_dpr(accel, DE_CONTROL, de_ctrl | deGetTransparency(accel));
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/* Write MONO data (line by line) to 2D Engine data port */
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for (i = 0; i < height; i++) {
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/* For each line, send the data in chunks of 4 bytes */
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for (j = 0; j < (ul4BytesPerScan/4); j++)
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write_dpPort(accel, *(unsigned int *)(pSrcbuf + (j * 4)));
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if (ulBytesRemain) {
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memcpy(ajRemain, pSrcbuf+ul4BytesPerScan, ulBytesRemain);
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write_dpPort(accel, *(unsigned int *)ajRemain);
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}
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pSrcbuf += srcDelta;
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}
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return 0;
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}
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