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cobra.c: Added DMA sound streaming.

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This commit is contained in:
Ville Linde 2012-09-02 12:33:21 +00:00
parent bf39088b47
commit c77db05c73
1 changed files with 61 additions and 13 deletions
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74
src/mame/drivers/cobra.c
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@ -207,8 +207,6 @@
0x400f4: xxx----- -------- -------- -------- Texture select (0-3)
xxx----- -------- -------- -------- ?
0x40114: -------- ----x--- -------- -------- Scissor enable
0x40138: Set to 0x88800000 (0xe0) by mode_viewclip()
@ -324,6 +322,7 @@
#include "video/polynew.h"
#include "video/rgbgen.h"
#include "sound/rf5c400.h"
#include "sound/dmadac.h"
#define GFXFIFO_IN_VERBOSE 0
#define GFXFIFO_OUT_VERBOSE 0
@ -337,6 +336,8 @@
#define ENABLE_BILINEAR 1
#define DMA_SOUND_BUFFER_SIZE 16000
/* Cobra Renderer class */
@ -708,6 +709,12 @@ public:
bool m_has_psac;
INT16 *m_sound_dma_buffer_l;
INT16 *m_sound_dma_buffer_r;
UINT32 m_sound_dma_ptr;
dmadac_sound_device *m_dmadac[2];
DECLARE_DRIVER_INIT(racjamdx);
DECLARE_DRIVER_INIT(bujutsu);
DECLARE_DRIVER_INIT(cobra);
@ -1616,7 +1623,7 @@ ADDRESS_MAP_END
// Interrupts:
// Serial Transmit JVS
// DMA0: Sound-related (TMS57002?)
// DMA0: DMA-driven DAC
// DMA2: SCSI?
// DMA3: JVS
// External IRQ0 M2SFIFO
@ -1913,15 +1920,37 @@ WRITE32_MEMBER(cobra_state::sub_psac2_w)
}
static UINT32 sub_unknown_dma_r(device_t *device, int width)
{
//printf("DMA read from unknown: size %d\n", width);
return 0;
}
static void sub_unknown_dma_w(device_t *device, int width, UINT32 data)
static void sub_sound_dma_w(device_t *device, int width, UINT32 data)
{
//printf("DMA write to unknown: size %d, data %08X\n", width, data);
/*
static FILE *out;
if (out == NULL)
out = fopen("sound.bin", "wb");
fputc((data >> 24) & 0xff, out);
fputc((data >> 16) & 0xff, out);
fputc((data >> 8) & 0xff, out);
fputc((data >> 0) & 0xff, out);
*/
cobra_state *cobra = device->machine().driver_data<cobra_state>();
INT16 ldata = (INT16)(data >> 16);
INT16 rdata = (INT16)(data);
cobra->m_sound_dma_buffer_l[cobra->m_sound_dma_ptr] = ldata;
cobra->m_sound_dma_buffer_r[cobra->m_sound_dma_ptr] = rdata;
cobra->m_sound_dma_ptr++;
if (cobra->m_sound_dma_ptr >= DMA_SOUND_BUFFER_SIZE)
{
cobra->m_sound_dma_ptr = 0;
dmadac_transfer(&cobra->m_dmadac[0], 1, 0, 1, DMA_SOUND_BUFFER_SIZE, cobra->m_sound_dma_buffer_l);
dmadac_transfer(&cobra->m_dmadac[1], 1, 0, 1, DMA_SOUND_BUFFER_SIZE, cobra->m_sound_dma_buffer_r);
}
}
static void sub_jvs_w(device_t *device, UINT8 data)
@ -3183,6 +3212,15 @@ static MACHINE_RESET( cobra )
ide_features[67*2+1] = 0x01;
cobra->m_renderer->gfx_reset(machine);
cobra->m_sound_dma_ptr = 0;
cobra->m_dmadac[0] = machine.device<dmadac_sound_device>("dac1");
cobra->m_dmadac[1] = machine.device<dmadac_sound_device>("dac2");
dmadac_enable(&cobra->m_dmadac[0], 1, 1);
dmadac_enable(&cobra->m_dmadac[1], 1, 1);
dmadac_set_frequency(&cobra->m_dmadac[0], 1, 44100);
dmadac_set_frequency(&cobra->m_dmadac[1], 1, 44100);
}
static const ide_config ide_intf =
@ -3232,6 +3270,12 @@ static MACHINE_CONFIG_START( cobra, cobra_state )
MCFG_SOUND_ROUTE(0, "lspeaker", 1.0)
MCFG_SOUND_ROUTE(1, "rspeaker", 1.0)
MCFG_SOUND_ADD("dac1", DMADAC, 0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 1.0)
MCFG_SOUND_ADD("dac2", DMADAC, 0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 1.0)
MCFG_M48T58_ADD("m48t58")
MCFG_K001604_ADD("k001604", cobra_k001604_intf) // on the LAN board in Racing Jam DX
@ -3284,9 +3328,7 @@ DRIVER_INIT_MEMBER(cobra_state, cobra)
ppc_set_dcstore_callback(m_gfxcpu, gfx_cpu_dc_store);
ppc4xx_set_dma_read_handler(m_subcpu, 0, sub_unknown_dma_r);
ppc4xx_set_dma_write_handler(m_subcpu, 0, sub_unknown_dma_w);
ppc4xx_set_dma_write_handler(m_subcpu, 0, sub_sound_dma_w, 44100);
ppc4xx_spu_set_tx_handler(m_subcpu, sub_jvs_w);
@ -3295,6 +3337,8 @@ DRIVER_INIT_MEMBER(cobra_state, cobra)
m_comram_page = 0;
m_sound_dma_buffer_l = auto_alloc_array(machine(), INT16, DMA_SOUND_BUFFER_SIZE);
m_sound_dma_buffer_r = auto_alloc_array(machine(), INT16, DMA_SOUND_BUFFER_SIZE);
// setup fake pagetable until we figure out what really maps there...
//m_gfx_pagetable[0x80 / 8] = U64(0x800001001e0001a8);
@ -3490,6 +3534,8 @@ ROM_START(bujutsu)
ROM_REGION(0x2000, "m48t58", ROMREGION_ERASE00)
ROM_LOAD( "m48t58-70pc1.17l", 0x000000, 0x002000, NO_DUMP )
ROM_REGION(0x1000000, "rfsnd", ROMREGION_ERASE00)
DISK_REGION( "drive_0" )
DISK_IMAGE_READONLY( "645c04", 0, SHA1(c0aabe69f6eb4e4cf748d606ae50674297af6a04) )
ROM_END
@ -3507,6 +3553,8 @@ ROM_START(racjamdx)
ROM_REGION(0x2000, "m48t58", ROMREGION_ERASE00)
ROM_LOAD( "m48t58-70pc1.17l", 0x000000, 0x002000, NO_DUMP )
ROM_REGION(0x1000000, "rfsnd", ROMREGION_ERASE00)
DISK_REGION( "drive_0" )
DISK_IMAGE_READONLY( "676a04", 0, SHA1(8e89d3e5099e871b99fccba13adaa3cf8a6b71f0) )
ROM_END