+#include "config.h"
+
#include <string.h>
#include <stdint.h>
#include "asm.h"
#include "serial.h"
-#define WIDTH 640
-#define HEIGHT 480
-#define BPP 16
-
-#ifdef RPI1
-#define IOBASEADDR 0x20000000
-#else
-#define IOBASEADDR 0x3f000000
-#endif
-
-#define phys2bus(addr) ((addr) | 0x40000000)
-#define bus2phys(addr) ((addr) & 0x3fffffff)
-
-#define IOREG_ADDR(x) (IOBASEADDR | (x))
-#define REG_MB_READ *((volatile uint32_t*)IOREG_ADDR(0xb880))
-#define REG_MB_STAT *((volatile uint32_t*)IOREG_ADDR(0xb898))
-#define REG_MB_WRITE *((volatile uint32_t*)IOREG_ADDR(0xb8a0))
-
-#define MB_STAT_FULL 0x80000000
-#define MB_STAT_EMPTY 0x40000000
-
-#define MB_CHAN_FRAMEBUF 1
-#define MB_CHAN_PROP 8
-
-#define PROP_CODE_REQ 0
-#define PROP_RESP_OK 0x80000000
-
-
-#define PROP_TAG_END 0
-
-#define PROP_TAG_SET 0x08000
-#define PROP_TAG_TEST 0x04000
-#define PROP_TAG_GET 0
-
-#define PROP_TAG_ALLOCBUF 0x40001
-#define PROP_TAG_BLANKSCR 0x40002
-#define PROP_TAG_PHYSRES 0x40003
-#define PROP_TAG_VIRTRES 0x40004
-#define PROP_TAG_DEPTH 0x40005
-#define PROP_TAG_PIXEL_ORDER 0x40006
-#define PROP_TAG_ALPHA_MODE 0x40007
-#define PROP_TAG_PITCH 0x40008
-#define PROP_TAG_VOFFS 0x40009
-#define PROP_TAG_OVERSCAN 0x4000a
-#define PROP_TAG_PALETTE 0x4000b
-#define PROP_TAG_CUR_INFO 0x00010
-#define PROP_TAG_CUR_STATE 0x00011
-
-
-void panic(void);
-static int send_prop(uint32_t *buf);
-int prop_blankscr(int onoff);
-int prop_setres(int xsz, int ysz);
-int prop_getres(int *xsz, int *ysz);
-int prop_setvres(int xsz, int ysz);
-int prop_getvres(int *xsz, int *ysz);
-int prop_setdepth(int bpp);
-int prop_getdepth(void);
-int prop_getpitch(void);
-void *prop_allocbuf(int *size);
-
-uint32_t mb_read(int chan);
-void mb_write(int chan, uint32_t val);
-
void dbgled(int x);
void exit(int x);
-uint32_t propbuf[64] __attribute__((aligned(16)));
-uint32_t premade[] __attribute__((aligned(16))) = {
- 80, /* size */
- 0, /* request */
- 0x00048003, 8, 0, WIDTH, HEIGHT, /* set phys */
- 0x00048004, 8, 0, WIDTH, HEIGHT, /* set virt */
- 0x00048005, 4, 0, BPP, /* set depth */
- 0, /* end */
- 0, 0, 0 /* padding */
-};
-
-
int main(void)
{
- int i, j, bpp, fbsize, pitch, xsz, ysz;
-#if BPP == 16
- uint16_t *fb, *fbptr;
-#elif BPP == 24
- unsigned char *fb, *fbptr;
-#elif BPP == 32
- uint32_t *fb, *fbptr;
-#endif
-
disable_intr();
+ dbgled(2);
+
init_serial(115200);
ser_printstr("starting rpkern\n");
- /*if(send_prop(premade) == -1) panic();*/
-
- /*if(prop_setres(WIDTH, HEIGHT) == -1) panic();*/
- if(prop_setvres(WIDTH, HEIGHT) == -1) panic();
- if(prop_setdepth(BPP) == -1) panic();
- if(!(fb = prop_allocbuf(&fbsize))) panic();
-
- prop_getvres(&xsz, &ysz);
- bpp = prop_getdepth();
- pitch = prop_getpitch();
-
- if(xsz != WIDTH || ysz != HEIGHT) panic();
- if(bpp != BPP) panic();
-
- fbptr = fb;
- for(i=0; i<HEIGHT; i++) {
- for(j=0; j<WIDTH; j++) {
- int xor = i ^ j;
- int r = (xor >> 1) & 0xff;
- int g = xor & 0xff;
- int b = (xor << 1) & 0xff;
-
-#if BPP == 16
- *fbptr++ = ((r << 8) & 0xf800) | ((g << 3) & 0x7e0) | ((b >> 3) & 0x1f);
-#elif BPP == 24
- *fbptr++ = r;
- *fbptr++ = g;
- *fbptr++ = b;
-#elif BPP == 32
- *fbptr++ = ((r << 16) & 0xff0000) | ((g << 8) & 0xff00) | (b & 0xff);
-#endif
+ for(;;) {
+ int c = ser_getchar();
+ if(c == -1) {
+ ser_printstr("error!\n");
+ } else {
+ ser_printstr("got: ");
+ ser_putchar(c);
+ ser_putchar('\r');
+ ser_putchar('\n');
}
-
- //fbptr += pitch / 2 - 640;
}
- fb[0] = 0xf800;
-
return 0;
}
dbgled(1);
exit(0);
}
-
-static int send_prop(uint32_t *buf)
-{
- mem_barrier();
- mb_write(MB_CHAN_PROP, (uint32_t)buf >> 4);
- mb_read(MB_CHAN_PROP);
- mem_barrier();
- return propbuf[1] == PROP_RESP_OK ? 0 : -1;
-}
-
-int prop_blankscr(int onoff)
-{
- uint32_t *pb = propbuf;
-
- *pb++ = 32;
- *pb++ = 0;
- *pb++ = PROP_TAG_BLANKSCR;
- *pb++ = 4; /* data size */
- *pb++ = PROP_CODE_REQ;
- *pb++ = onoff ? 1 : 0;
- *pb++ = PROP_TAG_END;
- *pb++ = 0; /* padding */
-
- return send_prop(propbuf);
-}
-
-int prop_setres(int xsz, int ysz)
-{
- uint32_t *pb = propbuf;
-
- *pb++ = 32;
- *pb++ = 0;
- *pb++ = PROP_TAG_PHYSRES | PROP_TAG_SET;
- *pb++ = 8; /* data size */
- *pb++ = PROP_CODE_REQ;
- *pb++ = xsz;
- *pb++ = ysz;
- *pb++ = PROP_TAG_END;
-
- return send_prop(propbuf);
-}
-
-int prop_getres(int *xsz, int *ysz)
-{
- uint32_t *pb = propbuf;
- uint32_t *data;
-
- *pb++ = 32;
- *pb++ = 0;
- *pb++ = PROP_TAG_PHYSRES;
- *pb++ = 8;
- *pb++ = PROP_CODE_REQ;
- data = pb;
- *pb++ = 0;
- *pb++ = 0;
- *pb++ = PROP_TAG_END;
-
- if(send_prop(propbuf) == -1) {
- return -1;
- }
- *xsz = data[0];
- *ysz = data[1];
- return 0;
-}
-
-int prop_setvres(int xsz, int ysz)
-{
- uint32_t *pb = propbuf;
-
- *pb++ = 32;
- *pb++ = 0;
- *pb++ = PROP_TAG_VIRTRES | PROP_TAG_SET;
- *pb++ = 8; /* data size */
- *pb++ = PROP_CODE_REQ;
- *pb++ = xsz;
- *pb++ = ysz;
- *pb++ = PROP_TAG_END;
-
- return send_prop(propbuf);
-}
-
-int prop_getvres(int *xsz, int *ysz)
-{
- uint32_t *pb = propbuf;
- uint32_t *data;
-
- *pb++ = 32;
- *pb++ = 0;
- *pb++ = PROP_TAG_VIRTRES;
- *pb++ = 8;
- *pb++ = PROP_CODE_REQ;
- data = pb;
- *pb++ = 0;
- *pb++ = 0;
- *pb++ = PROP_TAG_END;
-
- if(send_prop(propbuf) == -1) {
- return -1;
- }
- *xsz = data[0];
- *ysz = data[1];
- return 0;
-}
-
-int prop_setdepth(int bpp)
-{
- uint32_t *pb = propbuf;
-
- *pb++ = 32;
- *pb++ = 0;
- *pb++ = PROP_TAG_DEPTH | PROP_TAG_SET;
- *pb++ = 4;
- *pb++ = PROP_CODE_REQ;
- *pb++ = bpp;
- *pb++ = PROP_TAG_END;
- *pb++ = 0; /* padding */
-
- return send_prop(propbuf);
-}
-
-int prop_getdepth(void)
-{
- uint32_t *pb = propbuf;
- uint32_t *data;
-
- *pb++ = 32;
- *pb++ = 0;
- *pb++ = PROP_TAG_DEPTH;
- *pb++ = 4; /* data size */
- *pb++ = PROP_CODE_REQ;
- data = pb;
- *pb++ = 0;
- *pb++ = PROP_TAG_END;
- *pb++ = 0; /* padding */
-
- if(send_prop(propbuf) == -1) {
- return 0;
- }
- return *data;
-}
-
-int prop_getpitch(void)
-{
- uint32_t *pb = propbuf;
- uint32_t *data;
-
- *pb++ = 32;
- *pb++ = 0;
- *pb++ = PROP_TAG_PITCH;
- *pb++ = 4; /* data size */
- *pb++ = PROP_CODE_REQ;
- data = pb;
- *pb++ = 0;
- *pb++ = PROP_TAG_END;
- *pb++ = 0; /* padding */
-
- if(send_prop(propbuf) == -1) {
- return 0;
- }
- return *data;
-}
-
-void *prop_allocbuf(int *size)
-{
- uint32_t *pb = propbuf;
- uint32_t *data;
-
- *pb++ = 32;
- *pb++ = 0;
- *pb++ = PROP_TAG_ALLOCBUF;
- *pb++ = 8; /* data size */
- *pb++ = PROP_CODE_REQ;
- data = pb;
- *pb++ = 16; /* alignment */
- *pb++ = 0;
- *pb++ = PROP_TAG_END;
-
- if(send_prop(propbuf) == -1) {
- return 0;
- }
- *size = data[1];
- return (void*)bus2phys(data[0]);
-}
-
-uint32_t mb_read(int chan)
-{
- uint32_t val;
- do {
- mem_barrier();
- while(REG_MB_STAT & MB_STAT_EMPTY);
- mem_barrier();
- val = REG_MB_READ;
- } while((val & 0xf) != chan);
- return val >> 4;
-}
-
-void mb_write(int chan, uint32_t val)
-{
- mem_barrier();
- while(REG_MB_STAT & MB_STAT_FULL) {
- mem_barrier();
- }
- REG_MB_WRITE = (val << 4) | chan;
- mem_barrier();
-}
projects / rpikern / blobdiff