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#define get_mem32(addr) (*((unsigned long *) (addr)))
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#define get_mem32(addr) (*((unsigned long *) (addr)))
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#define set_palette(idx,r,g,b) set_mem32 (CRT_BASE + 0x400 + (idx) * 4, (((r) >> 3) << 11) | (((g) >> 2) << 5) | (((b) >> 3) << 0))
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#define set_palette(idx,r,g,b) set_mem32 (CRT_BASE + 0x400 + (idx) * 4, (((r) >> 3) << 11) | (((g) >> 2) << 5) | (((b) >> 3) << 0))
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#define put_pixel(xx,yy,idx) (*(unsigned char *)(FRAME_BUF + (xx) + (yy) * SCREEN_X) = (idx))
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#define put_pixel(xx,yy,idx) (*(unsigned char *)(FRAME_BUF + (xx) + (yy) * SCREEN_X) = (idx))
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int camera_pos_x;
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int camera_pos_x;
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int camera_move_speed = 1;
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int camera_move_speed = 1;
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int current_buf;
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int current_buf;
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void camera_int (void)
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void camera_int (void)
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{
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{
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/* Change base addresse of camera */
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/* Change base addresse of camera */
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set_mem32 (CAMERA_BASE, CAMERA_BUF(current_buf)); /* Set address to store to */
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set_mem32 (CAMERA_BASE, CAMERA_BUF(current_buf)); /* Set address to store to */
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/* Change base addresse of crt */
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/* Change base addresse of crt */
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set_mem32 (CRT_BASE + 8, CAMERA_BUF(1 - current_buf)); /* Tell CRT when camera buffer is */
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set_mem32 (CRT_BASE + 8, CAMERA_BUF(1 - current_buf)); /* Tell CRT when camera buffer is */
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printf ("\n %08x\n ", CAMERA_BUF(current_buf));
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printf ("\n %08x\n ", CAMERA_BUF(current_buf));
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current_buf = 1 - current_buf;
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current_buf = 1 - current_buf;
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/* move the camera screen around */
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/* move the camera screen around */
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camera_pos_x += camera_move_speed;
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camera_pos_x += camera_move_speed;
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if (camera_pos_x >= SCREEN_X - CAMERA_X || camera_pos_x <= 0)
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if (camera_pos_x >= SCREEN_X - CAMERA_X || camera_pos_x <= 0)
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camera_move_speed = -camera_move_speed;
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camera_move_speed = -camera_move_speed;
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mtspr(SPR_PICSR, 0);
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mtspr(SPR_PICSR, 0);
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}
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}
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int crt_enable_cmd (int argc, char *argv[])
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int crt_enable_cmd (int argc, char *argv[])
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{
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{
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int i, x, y;
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int i, x, y;
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if (argc) return -1;
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if (argc)
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return -1;
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/* Init CRT */
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/* Init CRT */
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set_mem32 (CRT_BASE + 4, FRAME_BUF); /* Frame buffer start */
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set_mem32 (CRT_BASE + 4, FRAME_BUF); /* Frame buffer start */
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set_mem32 (CRT_BASE, get_mem32 (CRT_BASE) | 1); /* Enable CRT only */
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set_mem32 (CRT_BASE, get_mem32 (CRT_BASE) | 1); /* Enable CRT only */
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/* Init palette */
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/* Init palette */
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for (i = 0; i < 32; i++) {
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for (i = 0; i < 32; i++) {
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set_palette (8 * i + 0, 0x00, 0x00, 0x00); /* black */
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set_palette (8 * i + 0, 0x00, 0x00, 0x00); /* black */
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set_palette (8 * i + 1, 0xff, 0xff, 0xff); /* white */
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set_palette (8 * i + 1, 0xff, 0xff, 0xff); /* white */
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set_palette (8 * i + 2, 0x7f, 0x7f, 0x7f); /* gray */
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set_palette (8 * i + 2, 0x7f, 0x7f, 0x7f); /* gray */
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set_palette (8 * i + 3, 0xff, 0x00, 0x00); /* red */
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set_palette (8 * i + 3, 0xff, 0x00, 0x00); /* red */
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set_palette (8 * i + 4, 0x00, 0xff, 0x00); /* green */
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set_palette (8 * i + 4, 0x00, 0xff, 0x00); /* green */
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set_palette (8 * i + 5, 0x00, 0x00, 0xff); /* blue */
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set_palette (8 * i + 5, 0x00, 0x00, 0xff); /* blue */
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set_palette (8 * i + 6, 0x00, 0xff, 0xff); /* cyan */
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set_palette (8 * i + 6, 0x00, 0xff, 0xff); /* cyan */
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set_palette (8 * i + 7, 0xff, 0x00, 0xff); /* purple */
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set_palette (8 * i + 7, 0xff, 0x00, 0xff); /* purple */
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}
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}
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for (x = 0; x < SCREEN_X; x++)
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for (x = 0; x < SCREEN_X; x++)
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for (y = 0; y < SCREEN_Y; y++)
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for (y = 0; y < SCREEN_Y; y++)
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put_pixel(x, y, 3);
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put_pixel(x, y, 3);
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return 0;
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return 0;
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}
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}
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int crt_test_cmd (int argc, char *argv[])
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int crt_test_cmd (int argc, char *argv[])
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{
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{
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int i, x, y;
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int i, x, y;
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if (argc) return -1;
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if (argc)
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return -1;
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for (x = 0; x < SCREEN_X; x++)
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for (x = 0; x < SCREEN_X; x++)
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for (y = 0; y < SCREEN_Y; y++)
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for (y = 0; y < SCREEN_Y; y++)
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put_pixel(x, y, 0);
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put_pixel(x, y, 0);
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/* Draw gray X */
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/* Draw gray X */
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for (i = 0; i < SCREEN_Y; i++) {
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for (i = 0; i < SCREEN_Y; i++) {
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put_pixel (i, i, 2);
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put_pixel (i, i, 2);
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put_pixel (SCREEN_X - i - 1, i, 1);
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put_pixel (SCREEN_X - i - 1, i, 1);
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}
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}
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/* Draw color boxes */
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/* Draw color boxes */
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for (y = 0; y < 50; y++)
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for (y = 0; y < 50; y++)
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for (x = 0; x < 50; x++)
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for (x = 0; x < 50; x++)
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for (i = 0; i < 8; i++)
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for (i = 0; i < 8; i++)
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put_pixel (i * 50 + x, y, i);
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put_pixel (i * 50 + x, y, i);
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return 0;
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return 0;
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}
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}
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int crt_disable_cmd (int argc, char *argv[])
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int crt_disable_cmd (int argc, char *argv[])
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{
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{
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if (argc) return -1;
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if (argc)
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return -1;
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set_mem32 (CRT_BASE, get_mem32 (CRT_BASE) & ~1); /* Disable CRT */
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set_mem32 (CRT_BASE, get_mem32 (CRT_BASE) & ~1); /* Disable CRT */
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return 0;
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return 0;
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}
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}
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int camera_enable_cmd (int argc, char *argv[])
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int camera_enable_cmd (int argc, char *argv[])
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{
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{
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if (argc) return -1;
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if (argc)
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return -1;
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/* Init Camera */
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/* Init Camera */
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set_mem32 (CAMERA_BASE, CAMERA_BUF(current_buf = 0)); /* Set address to store to */
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set_mem32 (CAMERA_BASE, CAMERA_BUF(current_buf = 0)); /* Set address to store to */
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set_mem32 (CAMERA_BASE + 4, 1); /* Enable it */
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set_mem32 (CAMERA_BASE + 4, 1); /* Enable it */
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/* Init CRT to display camera */
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/* Init CRT to display camera */
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set_mem32 (CRT_BASE + 8, CAMERA_BUF(1 - current_buf)); /* Tell CRT when camera buffer is */
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set_mem32 (CRT_BASE + 8, CAMERA_BUF(1 - current_buf)); /* Tell CRT when camera buffer is */
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camera_pos_x = 0;
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camera_pos_x = 0;
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set_mem32 (CRT_BASE + 0xc, CAMERA_POS);
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set_mem32 (CRT_BASE + 0xc, CAMERA_POS);
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set_mem32 (CRT_BASE, get_mem32 (CRT_BASE) | 2); /* Enable camera overlay */
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set_mem32 (CRT_BASE, get_mem32 (CRT_BASE) | 2); /* Enable camera overlay */
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/* Enable interrupts */
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/* Enable interrupts */
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mtspr (SPR_SR, mfspr(SPR_SR) | SPR_SR_IEE);
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mtspr (SPR_SR, mfspr(SPR_SR) | SPR_SR_IEE);
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mtspr (SPR_PICMR, mfspr(SPR_PICSR) | (1 << 13));
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mtspr (SPR_PICMR, mfspr(SPR_PICSR) | (1 << 13));
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return 0;
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return 0;
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}
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}
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int camera_disable_cmd (int argc, char *argv[])
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int camera_disable_cmd (int argc, char *argv[])
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{
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{
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if (argc) return -1;
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if (argc)
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return -1;
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/* Disable interrupts */
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/* Disable interrupts */
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mtspr (SPR_SR, mfspr(SPR_SR) & ~SPR_SR_IEE);
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mtspr (SPR_SR, mfspr(SPR_SR) & ~SPR_SR_IEE);
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mtspr (SPR_PICMR, mfspr(SPR_PICSR) & ~(1 << 13));
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mtspr (SPR_PICMR, mfspr(SPR_PICSR) & ~(1 << 13));
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/* Disable Camera */
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/* Disable Camera */
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set_mem32 (CAMERA_BASE + 4, 1); /* Enable it */
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set_mem32 (CAMERA_BASE + 4, 1); /* Enable it */
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set_mem32 (CRT_BASE, get_mem32 (CRT_BASE) & ~2); /* Disable camera overlay */
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set_mem32 (CRT_BASE, get_mem32 (CRT_BASE) & ~2); /* Disable camera overlay */
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return 0;
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return 0;
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}
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}
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void module_camera_init (void)
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void module_camera_init (void)
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{
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{
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register_command ("crt_enable", "", "enables CRT", crt_enable_cmd);
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register_command ("crt_enable", "", "enables CRT", crt_enable_cmd);
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register_command ("crt_disable", "", "disables CRT", crt_disable_cmd);
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register_command ("crt_disable", "", "disables CRT", crt_disable_cmd);
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register_command ("crt_test", "", "enables CRT and displays some test patterns", crt_test_cmd);
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register_command ("camera_enable", "", "enables camera", camera_enable_cmd);
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register_command("crt_test", "",
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register_command ("camera_disable", "", "disables camera", camera_disable_cmd);
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"enables CRT and displays some test patterns",
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crt_test_cmd);
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register_command("camera_enable", "", "enables camera",
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camera_enable_cmd);
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register_command("camera_disable", "", "disables camera",
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camera_disable_cmd);
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}
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}
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No newline at end of file
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No newline at end of file
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