diff options
Diffstat (limited to 'src/devices/bus/isa/sb16.h')
-rw-r--r-- | src/devices/bus/isa/sb16.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/src/devices/bus/isa/sb16.h b/src/devices/bus/isa/sb16.h new file mode 100644 index 00000000000..0236f97ea3f --- /dev/null +++ b/src/devices/bus/isa/sb16.h @@ -0,0 +1,120 @@ +// license:BSD-3-Clause +// copyright-holders:Carl + +#ifndef __SB16__ +#define __SB16__ + +#include "emu.h" +#include "isa.h" +#include "sound/dac.h" +#include "bus/pc_joy/pc_joy.h" +#include "cpu/mcs51/mcs51.h" +#include "sound/262intf.h" + +//********************************************************************* +// TYPE DEFINITIONS +//********************************************************************* + +// ====================> sb16_device + +class sb16_lle_device : public device_t, + public device_isa16_card_interface +{ +public: + // construction/destruction + sb16_lle_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + // optional information overrides + virtual const rom_entry *device_rom_region() const; + virtual machine_config_constructor device_mconfig_additions() const; + + required_device<dac_device> m_dacl; + required_device<dac_device> m_dacr; + required_device<pc_joy_device> m_joy; + required_device<cpu_device> m_cpu; + + READ8_MEMBER( mpu401_r ); + WRITE8_MEMBER( mpu401_w ); + + // mcu ports + DECLARE_READ8_MEMBER( dsp_data_r ); + DECLARE_WRITE8_MEMBER( dsp_data_w ); + DECLARE_READ8_MEMBER( p1_r ); + DECLARE_WRITE8_MEMBER( p1_w ); + DECLARE_READ8_MEMBER( p2_r ); + DECLARE_WRITE8_MEMBER( p2_w ); + DECLARE_WRITE8_MEMBER( rate_w ); + DECLARE_READ8_MEMBER( dma8_r ); + DECLARE_WRITE8_MEMBER( dma8_w ); + DECLARE_READ8_MEMBER( ctrl8_r ); + DECLARE_WRITE8_MEMBER( ctrl8_w ); + DECLARE_READ8_MEMBER( ctrl16_r ); + DECLARE_WRITE8_MEMBER( ctrl16_w ); + DECLARE_READ8_MEMBER( dac_ctrl_r ); + DECLARE_WRITE8_MEMBER( dac_ctrl_w ); + DECLARE_READ8_MEMBER( dac_fifo_ctrl_r ); + DECLARE_WRITE8_MEMBER( dac_fifo_ctrl_w ); + DECLARE_READ8_MEMBER( adc_fifo_ctrl_r ); + DECLARE_WRITE8_MEMBER( adc_fifo_ctrl_w ); + DECLARE_READ8_MEMBER( dma_stat_r ); + DECLARE_WRITE8_MEMBER( dac_data_w ); + DECLARE_READ8_MEMBER( adc_data_r ); + DECLARE_READ8_MEMBER( dma8_ready_r ); + DECLARE_READ8_MEMBER( adc_data_ready_r ); + DECLARE_READ8_MEMBER( dma8_cnt_lo_r ); + DECLARE_READ8_MEMBER( dma8_cnt_hi_r ); + DECLARE_WRITE8_MEMBER( dma8_len_lo_w ); + DECLARE_WRITE8_MEMBER( dma8_len_hi_w ); + DECLARE_WRITE8_MEMBER( dma16_len_lo_w ); + DECLARE_WRITE8_MEMBER( dma16_len_hi_w ); + DECLARE_READ8_MEMBER( mode_r ); + DECLARE_WRITE8_MEMBER( mode_w ); + + // host ports + DECLARE_READ8_MEMBER( host_data_r ); + DECLARE_WRITE8_MEMBER( host_cmd_w ); + DECLARE_WRITE8_MEMBER( dsp_reset_w ); + DECLARE_READ8_MEMBER( dsp_wbuf_status_r ); + DECLARE_READ8_MEMBER( dsp_rbuf_status_r ); + DECLARE_READ8_MEMBER( invalid_r ); + DECLARE_WRITE8_MEMBER( invalid_w ); + +protected: + // device-level overrides + virtual void device_start(); + virtual void device_reset(); + + virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr); + UINT8 dack_r(int line); + void dack_w(int line, UINT8 data); + UINT16 dack16_r(int line); + void dack16_w(int line, UINT16 data); +private: + void control_timer(bool start); + + // internal state + bool m_data_in; + UINT8 m_in_byte; + bool m_data_out; + UINT8 m_out_byte; + + UINT8 m_freq, m_mode, m_dac_fifo_ctrl, m_adc_fifo_ctrl, m_ctrl8, m_ctrl16, m_mpu_byte; + UINT16 m_dma8_len, m_dma16_len, m_dma8_cnt, m_dma16_cnt; + typedef union { + UINT32 w; + UINT16 h[2]; + UINT8 b[4]; + } samples; + samples m_adc_fifo[16], m_dac_fifo[16]; + int m_adc_fifo_head, m_adc_fifo_tail, m_dac_fifo_head, m_dac_fifo_tail; + bool m_adc_r, m_dac_r, m_adc_h, m_dac_h, m_irq8, m_irq16, m_irq_midi; + bool m_dma8_done, m_dma16_done; + + emu_timer *m_timer; +}; + +// device type definition + +extern const device_type ISA16_SB16; + +#endif |