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32x: implement dreq1, improve dmac

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This commit is contained in:
notaz 2013-08-05 00:04:30 +03:00
parent a7f82a776a
commit df63f1a6ff
4 changed files with 314 additions and 94 deletions
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16
pico/pico_int.h
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@ -467,12 +467,12 @@ typedef struct
#define P32XV_nFEN (1<< 1)
#define P32XV_FS (1<< 0)
#define P32XP_FULL (1<<15) // PWM
#define P32XP_RTP (1<<7) // PWM control
#define P32XP_FULL (1<<15) // PWM pulse
#define P32XP_EMPTY (1<<14)
#define P32XF_68KCPOLL (1 << 0)
#define P32XF_68KVPOLL (1 << 1)
#define P32XF_PWM_PEND (1 << 6)
#define P32XI_VRES (1 << 14/2) // IRL/2
#define P32XI_VINT (1 << 12/2)
@ -504,11 +504,12 @@ struct Pico32x
unsigned char sh2irqi[2]; // individual
unsigned int sh2irqs; // common irqs
unsigned short dmac_fifo[DMAC_FIFO_LEN];
unsigned int dmac_ptr;
unsigned int pwm_irq_sample_cnt;
unsigned int dmac0_fifo_ptr;
unsigned int pad;
unsigned char comm_dirty_68k;
unsigned char comm_dirty_sh2;
unsigned short pad;
unsigned char pwm_irq_cnt;
unsigned char pad1;
unsigned short pwm_p[2]; // pwm pos in fifo
unsigned int pwm_cycle_p; // pwm play cursor (32x cycles)
unsigned int reserved[6];
@ -586,6 +587,7 @@ unsigned int PicoRead8_io(unsigned int a);
unsigned int PicoRead16_io(unsigned int a);
void PicoWrite8_io(unsigned int a, unsigned int d);
void PicoWrite16_io(unsigned int a, unsigned int d);
void p32x_dreq1_trigger(void);
// pico/memory.c
PICO_INTERNAL void PicoMemSetupPico(void);
@ -781,8 +783,10 @@ void p32x_pwm_write16(unsigned int a, unsigned int d, unsigned int cycles);
void p32x_pwm_update(int *buf32, int length, int stereo);
void p32x_timers_do(unsigned int m68k_now, unsigned int m68k_slice);
void p32x_timers_recalc(void);
void p32x_pwm_schedule(unsigned int now);
void p32x_pwm_schedule(unsigned int m68k_now);
void p32x_pwm_schedule_sh2(SH2 *sh2);
void p32x_pwm_irq_event(unsigned int m68k_now);
void p32x_pwm_state_loaded(void);
#else
#define Pico32xInit()
#define PicoPower32x()