diff options
Diffstat (limited to 'drivers/staging/sm750fb/sm750_cursor.c')
| -rw-r--r-- | drivers/staging/sm750fb/sm750_cursor.c | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/drivers/staging/sm750fb/sm750_cursor.c b/drivers/staging/sm750fb/sm750_cursor.c new file mode 100644 index 000000000000..68d5cbc3e513 --- /dev/null +++ b/drivers/staging/sm750fb/sm750_cursor.c @@ -0,0 +1,251 @@ +#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_help.h" +#include "sm750_cursor.h" + + +#define PEEK32(addr) \ +readl(cursor->mmio + (addr)) + +#define POKE32(addr,data) \ +writel((data),cursor->mmio + (addr)) + +/* cursor control for voyager and 718/750*/ +#define HWC_ADDRESS 0x0 +#define HWC_ADDRESS_ENABLE 31:31 +#define HWC_ADDRESS_ENABLE_DISABLE 0 +#define HWC_ADDRESS_ENABLE_ENABLE 1 +#define HWC_ADDRESS_EXT 27:27 +#define HWC_ADDRESS_EXT_LOCAL 0 +#define HWC_ADDRESS_EXT_EXTERNAL 1 +#define HWC_ADDRESS_CS 26:26 +#define HWC_ADDRESS_CS_0 0 +#define HWC_ADDRESS_CS_1 1 +#define HWC_ADDRESS_ADDRESS 25:0 + +#define HWC_LOCATION 0x4 +#define HWC_LOCATION_TOP 27:27 +#define HWC_LOCATION_TOP_INSIDE 0 +#define HWC_LOCATION_TOP_OUTSIDE 1 +#define HWC_LOCATION_Y 26:16 +#define HWC_LOCATION_LEFT 11:11 +#define HWC_LOCATION_LEFT_INSIDE 0 +#define HWC_LOCATION_LEFT_OUTSIDE 1 +#define HWC_LOCATION_X 10:0 + +#define HWC_COLOR_12 0x8 +#define HWC_COLOR_12_2_RGB565 31:16 +#define HWC_COLOR_12_1_RGB565 15:0 + +#define HWC_COLOR_3 0xC +#define HWC_COLOR_3_RGB565 15:0 + + +/* hw_cursor_xxx works for voyager,718 and 750 */ +void hw_cursor_enable(struct lynx_cursor * cursor) +{ + u32 reg; + reg = FIELD_VALUE(0,HWC_ADDRESS,ADDRESS,cursor->offset)| + FIELD_SET(0,HWC_ADDRESS,EXT,LOCAL)| + FIELD_SET(0,HWC_ADDRESS,ENABLE,ENABLE); + POKE32(HWC_ADDRESS,reg); +} +void hw_cursor_disable(struct lynx_cursor * cursor) +{ + POKE32(HWC_ADDRESS,0); +} + +void hw_cursor_setSize(struct lynx_cursor * cursor, + int w,int h) +{ + cursor->w = w; + cursor->h = h; +} +void hw_cursor_setPos(struct lynx_cursor * cursor, + int x,int y) +{ + u32 reg; + reg = FIELD_VALUE(0,HWC_LOCATION,Y,y)| + FIELD_VALUE(0,HWC_LOCATION,X,x); + POKE32(HWC_LOCATION,reg); +} +void hw_cursor_setColor(struct lynx_cursor * cursor, + u32 fg,u32 bg) +{ + POKE32(HWC_COLOR_12,(fg<<16)|(bg&0xffff)); + POKE32(HWC_COLOR_3,0xffe0); +} + +void hw_cursor_setData(struct lynx_cursor * cursor, + u16 rop,const u8* pcol,const u8* pmsk) +{ + int i,j,count,pitch,offset; + u8 color,mask,opr; + u16 data; + void __iomem *pbuffer, *pstart; + + /* in byte*/ + pitch = cursor->w >> 3; + + /* in byte */ + count = pitch * cursor->h; + + /* in byte */ + offset = cursor->maxW * 2 / 8; + + data = 0; + pstart = cursor->vstart; + pbuffer = pstart; + +/* + if(odd &1){ + hw_cursor_setData2(cursor,rop,pcol,pmsk); + } + odd++; + if(odd > 0xfffffff0) + odd=0; +*/ + + for(i=0;i<count;i++) + { + color = *pcol++; + mask = *pmsk++; + data = 0; + + /* either method below works well, + * but method 2 shows no lag + * and method 1 seems a bit wrong*/ +#if 0 + if(rop == ROP_XOR) + opr = mask ^ color; + else + opr = mask & color; + + for(j=0;j<8;j++) + { + + if(opr & (0x80 >> j)) + { //use fg color,id = 2 + data |= 2 << (j*2); + }else{ + //use bg color,id = 1 + data |= 1 << (j*2); + } + } +#else + for(j=0;j<8;j++){ + if(mask & (0x80>>j)){ + if(rop == ROP_XOR) + opr = mask ^ color; + else + opr = mask & color; + + /* 2 stands for forecolor and 1 for backcolor */ + data |= ((opr & (0x80>>j))?2:1)<<(j*2); + } + } +#endif + iowrite16(data, pbuffer); + + /* assume pitch is 1,2,4,8,...*/ +#if 0 + if(!((i+1)&(pitch-1))) /* below line equal to is line */ +#else + if((i+1) % pitch == 0) +#endif + { + /* need a return */ + pstart += offset; + pbuffer = pstart; + }else{ + pbuffer += sizeof(u16); + } + + } + + +} + + +void hw_cursor_setData2(struct lynx_cursor * cursor, + u16 rop,const u8* pcol,const u8* pmsk) +{ + int i,j,count,pitch,offset; + u8 color, mask; + u16 data; + void __iomem *pbuffer, *pstart; + + /* in byte*/ + pitch = cursor->w >> 3; + + /* in byte */ + count = pitch * cursor->h; + + /* in byte */ + offset = cursor->maxW * 2 / 8; + + data = 0; + pstart = cursor->vstart; + pbuffer = pstart; + + for(i=0;i<count;i++) + { + color = *pcol++; + mask = *pmsk++; + data = 0; + + /* either method below works well, but method 2 shows no lag */ +#if 0 + if(rop == ROP_XOR) + opr = mask ^ color; + else + opr = mask & color; + + for(j=0;j<8;j++) + { + + if(opr & (0x80 >> j)) + { //use fg color,id = 2 + data |= 2 << (j*2); + }else{ + //use bg color,id = 1 + data |= 1 << (j*2); + } + } +#else + for(j=0;j<8;j++){ + if(mask & (1<<j)) + data |= ((color & (1<<j))?1:2)<<(j*2); + } +#endif + iowrite16(data, pbuffer); + + /* assume pitch is 1,2,4,8,...*/ + if(!(i&(pitch-1))) + //if((i+1) % pitch == 0) + { + /* need a return */ + pstart += offset; + pbuffer = pstart; + }else{ + pbuffer += sizeof(u16); + } + + } +} |