-// Code for communication with ARM940 and control of it.\r
-// (c) Copyright 2007, Grazvydas "notaz" Ignotas\r
+/*\r
+ * Code for communication with ARM940 and control of it.\r
+ * (C) notaz, 2006-2009\r
+ *\r
+ * This work is licensed under the terms of MAME license.\r
+ * See COPYING file in the top-level directory.\r
+ */\r
\r
#include <stdio.h>\r
#include <stdlib.h>\r
#include <fcntl.h>\r
#include <errno.h>\r
\r
-#include "code940/940shared.h"\r
-#include "gp2x.h"\r
-#include "emu.h"\r
-#include "menu.h"\r
+#include "../libpicofe/input.h"\r
+#include "../libpicofe/gp2x/soc_mmsp2.h"\r
+#include "../libpicofe/gp2x/soc.h"\r
#include "../common/mp3.h"\r
#include "../common/arm_utils.h"\r
-#include "../common/menu.h"\r
+#include "../common/menu_pico.h"\r
#include "../common/emu.h"\r
-#include "../../Pico/PicoInt.h"\r
-#include "../../Pico/sound/ym2612.h"\r
-#include "../../Pico/sound/mix.h"\r
-\r
-/* we will need some gp2x internals here */\r
-extern volatile unsigned short *gp2x_memregs; /* from minimal library rlyeh */\r
-extern volatile unsigned long *gp2x_memregl;\r
+#include "../../pico/pico_int.h"\r
+#include "../../pico/sound/ym2612.h"\r
+#include "../../pico/sound/mix.h"\r
+#include "code940/940shared.h"\r
+#include "plat.h"\r
+#include "940ctl.h"\r
\r
-extern int reset_timing;\r
static unsigned char *shared_mem = 0;\r
static _940_data_t *shared_data = 0;\r
_940_ctl_t *shared_ctl = 0;\r
upd = 0;\r
break;\r
\r
- case 1: /* data port 0 */\r
- if (ST_address == 0x2b) upd = 0; /* DAC sel */\r
- break;\r
-\r
case 2: /* address port 1 */\r
if (addr_A1 == 1 && ST_address == v)\r
return 0;\r
\r
\r
#define CHECK_BUSY(job) \\r
- (gp2x_memregs[0x3b46>>1] & (1<<(job-1)))\r
+ (memregs[0x3b46>>1] & (1<<(job-1)))\r
\r
static void wait_busy_940(int job)\r
{\r
int i;\r
\r
job--;\r
- for (i = 0; (gp2x_memregs[0x3b46>>1] & (1<<job)) && i < 0x10000; i++)\r
+ for (i = 0; (memregs[0x3b46>>1] & (1<<job)) && i < 0x10000; i++)\r
spend_cycles(8*1024); // tested to be best for mp3 dec\r
if (i < 0x10000) return;\r
\r
for (i = 0; i < 8; i++)\r
printf("%i ", shared_ctl->vstarts[i]);\r
printf(")\n");\r
- printf("irq pending flags: DUALCPU %04x, SRCPND %08lx (see 26), INTPND %08lx\n",\r
- gp2x_memregs[0x3b46>>1], gp2x_memregl[0x4500>>2], gp2x_memregl[0x4510>>2]);\r
+ printf("irq pending flags: DUALCPU %04x, SRCPND %08x (see 26), INTPND %08x\n",\r
+ memregs[0x3b46>>1], memregl[0x4500>>2], memregl[0x4510>>2]);\r
printf("last lr: %08x, lastjob: %i\n", shared_ctl->last_lr, shared_ctl->lastjob);\r
printf("trying to interrupt..\n");\r
- gp2x_memregs[0x3B3E>>1] = 0xffff;\r
- for (i = 0; gp2x_memregs[0x3b46>>1] && i < 0x10000; i++)\r
+ memregs[0x3B3E>>1] = 0xffff;\r
+ for (i = 0; memregs[0x3b46>>1] && i < 0x10000; i++)\r
spend_cycles(8*1024);\r
printf("i = 0x%x\n", i);\r
- printf("irq pending flags: DUALCPU %04x, SRCPND %08lx (see 26), INTPND %08lx\n",\r
- gp2x_memregs[0x3b46>>1], gp2x_memregl[0x4500>>2], gp2x_memregl[0x4510>>2]);\r
+ printf("irq pending flags: DUALCPU %04x, SRCPND %08x (see 26), INTPND %08x\n",\r
+ memregs[0x3b46>>1], memregl[0x4500>>2], memregl[0x4510>>2]);\r
printf("last lr: %08x, lastjob: %i\n", shared_ctl->last_lr, shared_ctl->lastjob);\r
\r
- strcpy(menuErrorMsg, "940 crashed, too much overclock?");\r
+ menu_update_msg("940 crashed, too much overclock?");\r
engineState = PGS_Menu;\r
crashed_940 = 1;\r
}\r
\r
// generate interrupt for this job\r
job--;\r
- gp2x_memregs[(0x3B20+job*2)>>1] = 1;\r
+ memregs[(0x3B20+job*2)>>1] = 1;\r
\r
-// printf("added %i, pending %04x\n", job+1, gp2x_memregs[0x3b46>>1]);\r
+// printf("added %i, pending %04x\n", job+1, memregs[0x3b46>>1]);\r
}\r
\r
\r
\r
\r
/* this must be called after mmu hack, the allocated regions must not get cached */\r
-void sharedmem_init(void)\r
+void sharedmem940_init(void)\r
{\r
if (shared_mem != NULL) return;\r
\r
}\r
\r
\r
-void sharedmem_deinit(void)\r
+void sharedmem940_finish(void)\r
{\r
munmap(shared_mem, 0x210000);\r
munmap(mp3_mem, MP3_SIZE_MAX);\r
}\r
\r
\r
-extern char **g_argv;\r
-\r
void YM2612Init_940(int baseclock, int rate)\r
{\r
+ static int oldrate;\r
+\r
+ // HACK\r
+ if (Pico.m.frame_count > 0 && !crashed_940 && rate == oldrate)\r
+ return;\r
+\r
printf("YM2612Init_940()\n");\r
printf("Mem usage: shared_data: %i, shared_ctl: %i\n", sizeof(*shared_data), sizeof(*shared_ctl));\r
\r
- Reset940(1, 2);\r
- Pause940(1);\r
+ reset940(1, 2);\r
+ pause940(1);\r
\r
- gp2x_memregs[0x3B40>>1] = 0; // disable DUALCPU interrupts for 920\r
- gp2x_memregs[0x3B42>>1] = 1; // enable DUALCPU interrupts for 940\r
+ memregs[0x3B40>>1] = 0; // disable DUALCPU interrupts for 920\r
+ memregs[0x3B42>>1] = 1; // enable DUALCPU interrupts for 940\r
\r
- gp2x_memregl[0x4504>>2] = 0; // make sure no FIQs will be generated\r
- gp2x_memregl[0x4508>>2] = ~(1<<26); // unmask DUALCPU ints in the undocumented 940's interrupt controller\r
+ memregl[0x4504>>2] = 0; // make sure no FIQs will be generated\r
+ memregl[0x4508>>2] = ~(1<<26); // unmask DUALCPU ints in the undocumented 940's interrupt controller\r
\r
\r
if (crashed_940)\r
{\r
unsigned char ucData[1024];\r
- int nRead, i, nLen = 0;\r
- char binpath[1024];\r
+ int nRead, nLen = 0;\r
+ char binpath[512];\r
FILE *fp;\r
\r
- strncpy(binpath, g_argv[0], 1023);\r
- binpath[1023] = 0;\r
- for (i = strlen(binpath); i > 0; i--)\r
- if (binpath[i] == '/') { binpath[i] = 0; break; }\r
- strcat(binpath, "/" CODE940_FILE);\r
-\r
+ emu_make_path(binpath, CODE940_FILE, sizeof(binpath));\r
fp = fopen(binpath, "rb");\r
if(!fp)\r
{\r
- memset(gp2x_screen, 0, 320*240*2);\r
+ memset(g_screen_ptr, 0, 320*240*2);\r
text_out16(10, 100, "failed to open required file:");\r
text_out16(10, 110, CODE940_FILE);\r
gp2x_video_flip2();\r
+ in_menu_wait(PBTN_MOK|PBTN_MBACK, NULL, 100);\r
printf("failed to open %s\n", binpath);\r
exit(1);\r
}\r
\r
internal_reset();\r
\r
- loaded_mp3 = 0;\r
+ loaded_mp3 = NULL;\r
\r
- gp2x_memregs[0x3B46>>1] = 0xffff; // clear pending DUALCPU interrupts for 940\r
- gp2x_memregl[0x4500>>2] = 0xffffffff; // clear pending IRQs in SRCPND\r
- gp2x_memregl[0x4510>>2] = 0xffffffff; // clear pending IRQs in INTPND\r
+ memregs[0x3B46>>1] = 0xffff; // clear pending DUALCPU interrupts for 940\r
+ memregl[0x4500>>2] = 0xffffffff; // clear pending IRQs in SRCPND\r
+ memregl[0x4510>>2] = 0xffffffff; // clear pending IRQs in INTPND\r
\r
/* start the 940 */\r
- Reset940(0, 2);\r
- Pause940(0);\r
+ reset940(0, 2);\r
+ pause940(0);\r
\r
// YM2612ResetChip_940(); // will be done on JOB940_YM2612INIT\r
\r
shared_ctl->baseclock = baseclock;\r
shared_ctl->rate = rate;\r
add_job_940(JOB940_INITALL);\r
+\r
+ oldrate = rate;\r
}\r
\r
\r
ym_active_chs = shared_ctl->ym_active_chs;\r
\r
// mix in ym buffer. is_buf_empty means nobody mixed there anything yet and it may contain trash\r
- if (is_buf_empty && ym_active_chs) memcpy32(buffer, ym_buf, length<<stereo);\r
+ if (is_buf_empty && ym_active_chs) memcpy(buffer, ym_buf, length << (stereo + 2));\r
else memset32(buffer, 0, length<<stereo);\r
\r
if (shared_ctl->writebuffsel == 1) {\r
\r
/* predict sample counter for next frame */\r
if (PsndLen_exc_add) {\r
- if (PsndLen_exc_cnt + PsndLen_exc_add >= 0x10000) length = PsndLen + 1;\r
- else length = PsndLen;\r
+ length = PsndLen;\r
+ if (PsndLen_exc_cnt + PsndLen_exc_add >= 0x10000) length++;\r
}\r
\r
/* give 940 ym job */\r
}\r
\r
\r
-static int mp3_samples_ready = 0, mp3_buffer_offs = 0;\r
-static int mp3_play_bufsel = 0, mp3_job_started = 0;\r
-\r
-void mp3_update(int *buffer, int length, int stereo)\r
-{\r
- int length_mp3;\r
- int cdda_on;\r
-\r
- // playback was started, track not ended\r
- cdda_on = loaded_mp3 && shared_ctl->mp3_offs < shared_ctl->mp3_len;\r
+/***********************************************************/\r
\r
- if (!cdda_on) return;\r
+// FIXME: double buffering no longer used..\r
\r
- if (!(PicoOpt&0x200)) {\r
- mp3_update_local(buffer, length, stereo);\r
- return;\r
+int mp3dec_decode(FILE *f, int *file_pos, int file_len)\r
+{\r
+ if (!(PicoIn.opt & POPT_EXT_FM)) {\r
+ //mp3_update_local(buffer, length, stereo);\r
+ return 0;\r
}\r
\r
- length_mp3 = length;\r
- if (PsndRate == 22050) length_mp3 <<= 1; // mp3s are locked to 44100Hz stereo\r
- else if (PsndRate == 11025) length_mp3 <<= 2; // so make length 44100ish\r
-\r
- /* do we have to wait? */\r
- if (mp3_job_started && mp3_samples_ready < length_mp3) {\r
- if (CHECK_BUSY(JOB940_MP3DECODE)) wait_busy_940(JOB940_MP3DECODE);\r
- mp3_job_started = 0;\r
- mp3_samples_ready += 1152;\r
+ // check if playback was started, track not ended\r
+ if (loaded_mp3 == NULL || shared_ctl->mp3_offs >= shared_ctl->mp3_len) {\r
+ *file_pos = file_len;\r
+ return 1;\r
}\r
\r
- /* mix mp3 data, only stereo */\r
- if (mp3_samples_ready >= length_mp3)\r
- {\r
- int shr = 0;\r
- void (*mix_samples)(int *dest_buf, short *mp3_buf, int count) = mix_16h_to_32;\r
- if (PsndRate == 22050) { mix_samples = mix_16h_to_32_s1; shr = 1; }\r
- else if (PsndRate == 11025) { mix_samples = mix_16h_to_32_s2; shr = 2; }\r
+ /* do we have to wait? */\r
+ if (CHECK_BUSY(JOB940_MP3DECODE))\r
+ wait_busy_940(JOB940_MP3DECODE);\r
\r
- if (1152 - mp3_buffer_offs >= length_mp3) {\r
- mix_samples(buffer, shared_data->mp3_buffer[mp3_play_bufsel] + mp3_buffer_offs*2, length<<1);\r
+ memcpy(cdda_out_buffer,\r
+ shared_data->mp3_buffer[shared_ctl->mp3_buffsel],\r
+ sizeof(cdda_out_buffer));\r
\r
- mp3_buffer_offs += length_mp3;\r
- } else {\r
- // collect samples from both buffers..\r
- int left = 1152 - mp3_buffer_offs;\r
- if (mp3_play_bufsel == 0)\r
- {\r
- mix_samples(buffer, shared_data->mp3_buffer[0] + mp3_buffer_offs*2, length<<1);\r
- mp3_buffer_offs = length_mp3 - left;\r
- mp3_play_bufsel = 1;\r
- } else {\r
- mix_samples(buffer, shared_data->mp3_buffer[1] + mp3_buffer_offs*2, (left>>shr)<<1);\r
- mp3_buffer_offs = length_mp3 - left;\r
- mix_samples(buffer + ((left>>shr)<<1),\r
- shared_data->mp3_buffer[0], (mp3_buffer_offs>>shr)<<1);\r
- mp3_play_bufsel = 0;\r
- }\r
- }\r
- mp3_samples_ready -= length_mp3;\r
- }\r
+ *file_pos = shared_ctl->mp3_offs;\r
\r
- // ask to decode more if we already can\r
- if (!mp3_job_started)\r
- {\r
- mp3_job_started = 1;\r
- shared_ctl->mp3_buffsel ^= 1;\r
+ if (shared_ctl->mp3_offs < shared_ctl->mp3_len) {\r
+ // ask to decode more\r
+ //shared_ctl->mp3_buffsel ^= 1;\r
add_job_940(JOB940_MP3DECODE);\r
}\r
-}\r
-\r
\r
-/***********************************************************/\r
+ return 0;\r
+}\r
\r
-void mp3_start_play(FILE *f, int pos) // pos is 0-1023\r
+int mp3dec_start(FILE *f, int fpos_start)\r
{\r
- int byte_offs = 0;\r
-\r
- if (!(PicoOpt&0x800)) { // cdda disabled?\r
- return;\r
+ if (!(PicoIn.opt & POPT_EXT_FM)) {\r
+ //mp3_start_play_local(f, pos);\r
+ return -1;\r
}\r
\r
if (loaded_mp3 != f)\r
}\r
fseek(f, 0, SEEK_SET);\r
fread(mp3_mem, 1, MP3_SIZE_MAX, f);\r
- if (!feof(f)) printf("Warning: mp3 was too large, not all data loaded.\n");\r
+ if (!feof(f))\r
+ printf("Warning: mp3 was too large, not all data loaded.\n");\r
shared_ctl->mp3_len = ftell(f);\r
loaded_mp3 = f;\r
\r
- if (PicoOpt&0x200) {\r
- // as we are going to change 940's cacheable area, we must invalidate it's cache..\r
- if (CHECK_BUSY(JOB940_MP3DECODE)) wait_busy_940(JOB940_MP3DECODE);\r
- add_job_940(JOB940_INVALIDATE_DCACHE);\r
- }\r
+ // as we are going to change 940's cacheable area,\r
+ // we must invalidate it's cache..\r
+ if (CHECK_BUSY(JOB940_MP3DECODE))\r
+ wait_busy_940(JOB940_MP3DECODE);\r
+ add_job_940(JOB940_INVALIDATE_DCACHE);\r
reset_timing = 1;\r
}\r
\r
- // seek..\r
- if (pos) {\r
- byte_offs = (shared_ctl->mp3_len << 6) >> 10;\r
- byte_offs *= pos;\r
- byte_offs >>= 6;\r
- }\r
- // printf("mp3 pos1024: %i, byte_offs %i/%i\n", pos, byte_offs, shared_ctl->mp3_len);\r
-\r
- shared_ctl->mp3_offs = byte_offs;\r
-\r
- // reset buffer pointers and stuff..\r
- mp3_samples_ready = mp3_buffer_offs = mp3_play_bufsel = 0;\r
- mp3_job_started = 0;\r
- shared_ctl->mp3_buffsel = 1; // will change to 0 on first decode\r
-\r
- if (!(PicoOpt&0x200)) mp3_start_local();\r
-}\r
+ shared_ctl->mp3_offs = fpos_start;\r
+ shared_ctl->mp3_buffsel = 0;\r
\r
+ add_job_940(JOB940_MP3RESET);\r
+ if (CHECK_BUSY(JOB940_MP3RESET))\r
+ wait_busy_940(JOB940_MP3RESET);\r
\r
-int mp3_get_offset(void)\r
-{\r
- unsigned int offs1024 = 0;\r
- int cdda_on;\r
-\r
- cdda_on = (PicoAHW & PAHW_MCD) && (PicoOpt&0x800) && !(Pico_mcd->s68k_regs[0x36] & 1) &&\r
- (Pico_mcd->scd.Status_CDC & 1) && loaded_mp3;\r
-\r
- if (cdda_on) {\r
- offs1024 = shared_ctl->mp3_offs << 7;\r
- offs1024 /= shared_ctl->mp3_len >> 3;\r
+ // because we decode ahea, need to start now\r
+ if (shared_ctl->mp3_offs < shared_ctl->mp3_len) {\r
+ add_job_940(JOB940_MP3DECODE);\r
}\r
- printf("offs1024=%u (%i/%i)\n", offs1024, shared_ctl->mp3_offs, shared_ctl->mp3_len);\r
\r
- return offs1024;\r
+ return 0;\r
}\r
\r
-\r
notaz.gp2x.de / picodrive.git / blobdiff