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https://github.com/RaySollium99/libpicofe.git
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refactoring for Wiz port; random cleanups
git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@703 be3aeb3a-fb24-0410-a615-afba39da0efa
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notaz
parent
9c0d458840
commit
d572cbad98
18 changed files with 531 additions and 492 deletions
280
gp2x/soc_mmsp2.c
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280
gp2x/soc_mmsp2.c
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <sys/mman.h>
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#include <unistd.h>
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#include "soc.h"
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#include "soc_mmsp2.h"
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#include "gp2x.h"
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#include "../common/emu.h"
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#include "../common/arm_utils.h"
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volatile unsigned short *gp2x_memregs;
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volatile unsigned long *gp2x_memregl;
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extern void *gp2x_screens[4];
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static int screensel = 0;
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int memdev = 0; /* used by code940 */
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static int touchdev = -1;
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static int touchcal[7] = { 6203, 0, -1501397, 0, -4200, 16132680, 65536 };
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#define FRAMEBUFF_SIZE 0x30000
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#define FRAMEBUFF_WHOLESIZE (FRAMEBUFF_SIZE*4) // 320*240*2 + some more
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#define FRAMEBUFF_ADDR0 (0x4000000 - FRAMEBUFF_WHOLESIZE)
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#define FRAMEBUFF_ADDR1 (FRAMEBUFF_ADDR0 + FRAMEBUFF_SIZE)
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#define FRAMEBUFF_ADDR2 (FRAMEBUFF_ADDR1 + FRAMEBUFF_SIZE)
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#define FRAMEBUFF_ADDR3 (FRAMEBUFF_ADDR2 + FRAMEBUFF_SIZE)
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static const int gp2x_screenaddrs[4] = { FRAMEBUFF_ADDR0, FRAMEBUFF_ADDR1, FRAMEBUFF_ADDR2, FRAMEBUFF_ADDR3 };
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static int gp2x_screenaddrs_use[4];
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static unsigned short gp2x_screenaddr_old[4];
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/* video stuff */
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void gp2x_video_flip(void)
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{
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unsigned short lsw = (unsigned short) gp2x_screenaddrs_use[screensel&3];
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unsigned short msw = (unsigned short)(gp2x_screenaddrs_use[screensel&3] >> 16);
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gp2x_memregs[0x2910>>1] = msw;
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gp2x_memregs[0x2914>>1] = msw;
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gp2x_memregs[0x290E>>1] = lsw;
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gp2x_memregs[0x2912>>1] = lsw;
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// jump to other buffer:
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g_screen_ptr = gp2x_screens[++screensel&3];
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}
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/* doulblebuffered flip */
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void gp2x_video_flip2(void)
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{
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unsigned short msw = (unsigned short)(gp2x_screenaddrs_use[screensel&1] >> 16);
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gp2x_memregs[0x2910>>1] = msw;
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gp2x_memregs[0x2914>>1] = msw;
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gp2x_memregs[0x290E>>1] = 0;
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gp2x_memregs[0x2912>>1] = 0;
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// jump to other buffer:
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g_screen_ptr = gp2x_screens[++screensel&1];
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}
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void gp2x_video_changemode_ll(int bpp)
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{
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gp2x_memregs[0x28DA>>1] = (((bpp+1)/8)<<9)|0xAB; /*8/15/16/24bpp...*/
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gp2x_memregs[0x290C>>1] = 320*((bpp+1)/8); /*line width in bytes*/
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}
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void gp2x_video_setpalette(int *pal, int len)
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{
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unsigned short *g = (unsigned short *)pal;
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volatile unsigned short *memreg = &gp2x_memregs[0x295A>>1];
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gp2x_memregs[0x2958>>1] = 0;
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len *= 2;
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while (len--)
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*memreg = *g++;
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}
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// TV Compatible function //
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void gp2x_video_RGB_setscaling(int ln_offs, int W, int H)
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{
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float escalaw, escalah;
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int bpp = (gp2x_memregs[0x28DA>>1]>>9)&0x3;
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unsigned short scalw;
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// set offset
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gp2x_screenaddrs_use[0] = gp2x_screenaddrs[0] + ln_offs * 320 * bpp;
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gp2x_screenaddrs_use[1] = gp2x_screenaddrs[1] + ln_offs * 320 * bpp;
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gp2x_screenaddrs_use[2] = gp2x_screenaddrs[2] + ln_offs * 320 * bpp;
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gp2x_screenaddrs_use[3] = gp2x_screenaddrs[3] + ln_offs * 320 * bpp;
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escalaw = 1024.0; // RGB Horiz LCD
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escalah = 320.0; // RGB Vert LCD
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if(gp2x_memregs[0x2800>>1]&0x100) //TV-Out
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{
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escalaw=489.0; // RGB Horiz TV (PAL, NTSC)
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if (gp2x_memregs[0x2818>>1] == 287) //PAL
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escalah=274.0; // RGB Vert TV PAL
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else if (gp2x_memregs[0x2818>>1] == 239) //NTSC
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escalah=331.0; // RGB Vert TV NTSC
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}
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// scale horizontal
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scalw = (unsigned short)((float)escalaw *(W/320.0));
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/* if there is no horizontal scaling, vertical doesn't work. Here is a nasty wrokaround... */
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if (H != 240 && W == 320) scalw--;
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gp2x_memregs[0x2906>>1]=scalw;
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// scale vertical
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gp2x_memregl[0x2908>>2]=(unsigned long)((float)escalah *bpp *(H/240.0));
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}
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void gp2x_video_wait_vsync(void)
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{
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unsigned short v = gp2x_memregs[0x1182>>1];
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while (!((v ^ gp2x_memregs[0x1182>>1]) & 0x10))
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spend_cycles(1024);
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}
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/* 940 */
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void pause940(int yes)
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{
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if (yes)
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gp2x_memregs[0x0904>>1] &= 0xFFFE;
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else
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gp2x_memregs[0x0904>>1] |= 1;
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}
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void reset940(int yes, int bank)
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{
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gp2x_memregs[0x3B48>>1] = ((yes&1) << 7) | (bank & 0x03);
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}
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/* these are not quite MMSP2 related,
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* more to GP2X F100/F200 consoles themselves. */
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typedef struct ucb1x00_ts_event
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{
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unsigned short pressure;
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unsigned short x;
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unsigned short y;
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unsigned short pad;
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struct timeval stamp;
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} UCB1X00_TS_EVENT;
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int gp2x_touchpad_read(int *x, int *y)
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{
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UCB1X00_TS_EVENT event;
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static int zero_seen = 0;
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int retval;
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if (touchdev < 0) return -1;
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retval = read(touchdev, &event, sizeof(event));
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if (retval <= 0) {
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perror("touch read failed");
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return -1;
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}
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// this is to ignore the messed-up 4.1.x driver
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if (event.pressure == 0) zero_seen = 1;
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if (x) *x = (event.x * touchcal[0] + touchcal[2]) >> 16;
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if (y) *y = (event.y * touchcal[4] + touchcal[5]) >> 16;
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// printf("read %i %i %i\n", event.pressure, *x, *y);
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return zero_seen ? event.pressure : 0;
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}
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static void proc_set(const char *path, const char *val)
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{
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FILE *f;
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char tmp[16];
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f = fopen(path, "w");
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if (f == NULL) {
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printf("failed to open: %s\n", path);
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return;
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}
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fprintf(f, "0\n");
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fclose(f);
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printf("\"%s\" is set to: ", path);
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f = fopen(path, "r");
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if (f == NULL) {
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printf("(open failed)\n");
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return;
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}
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fgets(tmp, sizeof(tmp), f);
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printf("%s", tmp);
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fclose(f);
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}
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void mmsp2_init(void)
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{
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int i;
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memdev = open("/dev/mem", O_RDWR);
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if (memdev == -1)
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{
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perror("open(\"/dev/mem\")");
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exit(1);
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}
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gp2x_memregs = mmap(0, 0x10000, PROT_READ|PROT_WRITE, MAP_SHARED, memdev, 0xc0000000);
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if (gp2x_memregs == MAP_FAILED)
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{
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perror("mmap(memregs)");
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exit(1);
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}
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gp2x_memregl = (unsigned long *) gp2x_memregs;
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gp2x_memregs[0x2880>>1] &= ~0x383; // disable cursor, subpict, osd, video layers
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gp2x_screens[0] = mmap(0, FRAMEBUFF_WHOLESIZE, PROT_WRITE, MAP_SHARED,
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memdev, gp2x_screenaddrs[0]);
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if (gp2x_screens[0] == MAP_FAILED)
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{
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perror("mmap(g_screen_ptr)");
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exit(1);
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}
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printf("framebuffers:\n");
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printf(" %08x -> %p\n", gp2x_screenaddrs[0], gp2x_screens[0]);
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for (i = 1; i < 4; i++)
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{
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gp2x_screens[i] = (char *) gp2x_screens[i - 1] + FRAMEBUFF_SIZE;
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printf(" %08x -> %p\n", gp2x_screenaddrs[i], gp2x_screens[i]);
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}
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g_screen_ptr = gp2x_screens[0];
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screensel = 0;
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gp2x_screenaddr_old[0] = gp2x_memregs[0x290E>>1];
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gp2x_screenaddr_old[1] = gp2x_memregs[0x2910>>1];
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gp2x_screenaddr_old[2] = gp2x_memregs[0x2912>>1];
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gp2x_screenaddr_old[3] = gp2x_memregs[0x2914>>1];
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memcpy(gp2x_screenaddrs_use, gp2x_screenaddrs, sizeof(gp2x_screenaddrs));
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// touchscreen
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touchdev = open("/dev/touchscreen/wm97xx", O_RDONLY);
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if (touchdev >= 0) {
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FILE *pcf = fopen("/etc/pointercal", "r");
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if (pcf) {
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fscanf(pcf, "%d %d %d %d %d %d %d", &touchcal[0], &touchcal[1],
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&touchcal[2], &touchcal[3], &touchcal[4], &touchcal[5], &touchcal[6]);
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fclose(pcf);
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}
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printf("found touchscreen/wm97xx\n");
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}
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/* disable Linux read-ahead */
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proc_set("/proc/sys/vm/max-readahead", "0\n");
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proc_set("/proc/sys/vm/min-readahead", "0\n");
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}
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void mmsp2_finish(void)
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{
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reset940(1, 3);
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pause940(1);
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gp2x_memregs[0x290E>>1] = gp2x_screenaddr_old[0];
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gp2x_memregs[0x2910>>1] = gp2x_screenaddr_old[1];
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gp2x_memregs[0x2912>>1] = gp2x_screenaddr_old[2];
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gp2x_memregs[0x2914>>1] = gp2x_screenaddr_old[3];
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munmap(gp2x_screens[0], FRAMEBUFF_WHOLESIZE);
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munmap((void *)gp2x_memregs, 0x10000);
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close(memdev);
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if (touchdev >= 0)
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close(touchdev);
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}
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