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lib_xua/module_usb_audio/main.xc
Ross Owen 4ec1741edd Merge
2013-11-14 15:48:00 +00:00

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/**
* @file main.xc
* @brief Top level for XMOS USB 2.0 Audio 2.0 Reference Designs.
* @author Ross Owen, XMOS Semiconductor Ltd
*/
#include <syscall.h>
#include <platform.h>
#include <xs1.h>
#include <xclib.h>
#include <print.h>
#ifdef XSCOPE
#include <xscope.h>
#endif
#include "xud.h" /* XMOS USB Device Layer defines and functions */
#include "usb.h" /* Defines from the USB 2.0 Specification */
#include "devicedefines.h" /* Device specific defines */
#include "endpoint0.h"
#include "usb_buffer.h"
#include "decouple.h"
#ifdef MIDI
#include "usb_midi.h"
#endif
#include "audio.h"
#ifdef IAP
#include "iap.h"
#endif
#ifndef AUDIO_IO_TILE
#define AUDIO_IO_TILE 0
#endif
/* Audio I/O */
#if I2S_WIRES_DAC > 0
on tile[AUDIO_IO_TILE] : buffered out port:32 p_i2s_dac[I2S_WIRES_DAC] =
{PORT_I2S_DAC0,
#endif
#if I2S_WIRES_DAC > 1
PORT_I2S_DAC1,
#endif
#if I2S_WIRES_DAC > 2
PORT_I2S_DAC2,
#endif
#if I2S_WIRES_DAC > 3
PORT_I2S_DAC3,
#endif
#if I2S_WIRES_DAC > 4
PORT_I2S_DAC4,
#endif
#if I2S_WIRES_DAC > 5
PORT_I2S_DAC5,
#endif
#if I2S_WIRES_DAC > 6
PORT_I2S_DAC6,
#endif
#if I2S_WIRES_DAC > 7
#error Not supported
#endif
#if I2S_WIRES_DAC > 0
};
#endif
#if I2S_WIRES_ADC > 0
on tile[AUDIO_IO_TILE] : buffered in port:32 p_i2s_adc[I2S_WIRES_ADC] =
{PORT_I2S_ADC0,
#endif
#if I2S_WIRES_ADC > 1
PORT_I2S_ADC1,
#endif
#if I2S_WIRES_ADC > 2
PORT_I2S_ADC2,
#endif
#if I2S_WIRES_ADC > 3
PORT_I2S_ADC3,
#endif
#if I2S_WIRES_ADC > 4
PORT_I2S_ADC4,
#endif
#if I2S_WIRES_ADC > 5
PORT_I2S_ADC5,
#endif
#if I2S_WIRES_ADC > 6
PORT_I2S_ADC6,
#endif
#if I2S_WIRES_ADC > 7
#error Not supported
#endif
#if I2S_WIRES_ADC > 0
};
#endif
#ifndef CODEC_MASTER
on tile[AUDIO_IO_TILE] : buffered out port:32 p_lrclk = PORT_I2S_LRCLK;
on tile[AUDIO_IO_TILE] : buffered out port:32 p_bclk = PORT_I2S_BCLK;
#else
on tile[AUDIO_IO_TILE] : in port p_lrclk = PORT_I2S_LRCLK;
on tile[AUDIO_IO_TILE] : in port p_bclk = PORT_I2S_BCLK;
#endif
on tile[AUDIO_IO_TILE] : port p_mclk_in = PORT_MCLK_IN;
on tile[0] : in port p_for_mclk_count = PORT_MCLK_COUNT;
#ifdef SPDIF
on tile[AUDIO_IO_TILE] : buffered out port:32 p_spdif_tx = PORT_SPDIF_OUT;
#endif
#ifdef MIDI
on tile[AUDIO_IO_TILE] : port p_midi_tx = PORT_MIDI_OUT;
on tile[AUDIO_IO_TILE] : port p_midi_rx = PORT_MIDI_IN;
#endif
/* Clock blocks */
#ifdef MIDI
on tile[AUDIO_IO_TILE] : clock clk_midi = XS1_CLKBLK_REF;
#endif
on tile[AUDIO_IO_TILE] : clock clk_audio_mclk = XS1_CLKBLK_2; /* Master clock */
#if(AUDIO_IO_TILE != 0)
on tile[0] : clock clk_audio_mclk2 = XS1_CLKBLK_2; /* Master clock */
on tile[0] : in port p_mclk_in2 = PORT_MCLK_IN2;
#endif
on tile[AUDIO_IO_TILE] : clock clk_audio_bclk = XS1_CLKBLK_3; /* Bit clock */
#ifdef SPDIF
on tile[AUDIO_IO_TILE] : clock clk_mst_spd = XS1_CLKBLK_1;
#endif
/* L Series needs a port to use for USB reset */
#ifdef ARCH_L
#ifdef PORT_USB_RESET
/* This define is checked since it could be on a shift reg or similar */
on tile[0] : out port p_usb_rst = PORT_USB_RESET;
#endif
/* L Series also needs a clock for this port */
clock clk = XS1_CLKBLK_4;
#else
/* Reset port not required for SU1 due to built in Phy */
#define p_usb_rst null
#define clk null
#endif
<<<<<<< HEAD
#ifdef IAP
on tile [AUDIO_IO_TILE] : port p_i2c_sda = PORT_I2C_SDA;
on tile [AUDIO_IO_TILE] : port p_i2c_scl = PORT_I2C_SCL;
#endif
=======
>>>>>>> parent of d52b8ee... Added iAP i2c ports
/* Endpoint type tables for XUD */
XUD_EpType epTypeTableOut[EP_CNT_OUT] = { XUD_EPTYPE_CTL | XUD_STATUS_ENABLE,
XUD_EPTYPE_ISO, /* Audio */
#ifdef MIDI
XUD_EPTYPE_BUL, /* MIDI */
#endif
#ifdef IAP
XUD_EPTYPE_BUL | XUD_STATUS_ENABLE /* iAP */
#endif
};
XUD_EpType epTypeTableIn[EP_CNT_IN] = { XUD_EPTYPE_CTL | XUD_STATUS_ENABLE,
XUD_EPTYPE_ISO,
XUD_EPTYPE_ISO,
#if defined (SPDIF_RX) || defined (ADAT_RX)
XUD_EPTYPE_BUL,
#endif
#ifdef MIDI
XUD_EPTYPE_BUL,
#endif
#ifdef HID_CONTROLS
XUD_EPTYPE_INT,
#endif
#ifdef IAP
XUD_EPTYPE_BUL,
XUD_EPTYPE_BUL,
#endif
};
void thread_speed()
{
#ifdef FAST_MODE
#warning Building with fast mode enabled
set_thread_fast_mode_on();
#else
set_thread_fast_mode_off();
#endif
}
#ifdef XSCOPE
void xscope_user_init()
{
xscope_register(0, 0, "", 0, "");
xscope_config_io(XSCOPE_IO_BASIC);
}
#endif
#ifdef SELF_POWERED
#define pwrConfig XUD_PWR_SELF
#else
#define pwrConfig XUD_PWR_BUS
#endif
int main()
{
chan c_sof;
chan c_xud_out[EP_CNT_OUT]; /* Endpoint channels for XUD */
chan c_xud_in[EP_CNT_IN];
chan c_aud_ctl;
chan c_mix_out;
#ifdef MIDI
chan c_midi;
#endif
#ifdef IAP
chan c_iap;
#endif
#ifdef TEST_MODE_SUPPORT
#warning Building with test mode support
chan c_usb_test;
#else
#define c_usb_test null
#endif
#ifdef SU1_ADC_ENABLE
chan c_adc;
#else
#define c_adc null
#endif
#ifdef CHAN_BUFF_CTRL
#warning Using channel to control buffering - this may reduce performance but improve power consumption
chan c_buff_ctrl;
#endif
par
{
/* USB Interface */
#if (AUDIO_CLASS==2)
on tile[0]: XUD_Manager(c_xud_out, EP_CNT_OUT, c_xud_in, EP_CNT_IN,
c_sof, epTypeTableOut, epTypeTableIn, p_usb_rst,
clk, 1, XUD_SPEED_HS, c_usb_test, pwrConfig);
#else
on tile[0]:XUD_Manager(c_xud_out, EP_CNT_OUT, c_xud_in, EP_CNT_IN,
c_sof, epTypeTableOut, epTypeTableIn, p_usb_rst,
clk, 1, XUD_SPEED_FS, c_usb_test, pwrConfig);
#endif
on tile[0]:
{
thread_speed();
/* Attach mclk count port to mclk clock-block (for feedback) */
//set_port_clock(p_for_mclk_count, clk_audio_mclk);
{
unsigned x;
#if(AUDIO_IO_TILE != 0)
set_clock_src(clk_audio_mclk2, p_mclk_in2);
set_port_clock(p_for_mclk_count, clk_audio_mclk2);
start_clock(clk_audio_mclk2);
#else
/* Uses same clock-block as I2S */
asm("ldw %0, dp[clk_audio_mclk]":"=r"(x));
asm("setclk res[%0], %1"::"r"(p_for_mclk_count), "r"(x));
#endif
}
buffer(c_xud_out[EP_NUM_OUT_AUD],/* Audio Out*/
c_xud_in[EP_NUM_IN_AUD], /* Audio In */
c_xud_in[EP_NUM_IN_FB], /* Audio FB */
#ifdef MIDI
c_xud_out[EP_NUM_OUT_MIDI], /* MIDI Out */ // 2
c_xud_in[EP_NUM_IN_MIDI], /* MIDI In */ // 4
c_midi,
#endif
#ifdef IAP
c_xud_out[EP_NUM_OUT_IAP], c_xud_in[EP_NUM_IN_IAP], c_xud_in[EP_NUM_IN_IAP_INT], c_iap,
#endif
#if defined(SPDIF_RX) || defined(ADAT_RX)
/* Audio Interrupt - only used for interrupts on external clock change */
c_xud_in[EP_NUM_IN_AUD_INT],
#endif
c_sof, c_aud_ctl, p_for_mclk_count
#ifdef HID_CONTROLS
, c_xud_in[EP_NUM_IN_HID]
#endif
#ifdef CHAN_BUFF_CTRL
, c_buff_ctrl
#endif
);
}
on tile[AUDIO_IO_TILE]:
{
thread_speed();
/* Audio I/O (pars additional S/PDIF TX thread) */
audio(c_mix_out, null, null, c_adc);
}
on tile[0]:
{
thread_speed();
decouple(c_mix_out, null
#ifdef CHAN_BUFF_CTRL
, c_buff_ctrl
#endif
);
}
/* Endpoint 0 */
on tile[0]:
{
thread_speed();
Endpoint0( c_xud_out[0], c_xud_in[0], c_aud_ctl, null, null, c_usb_test);
}
#if defined (MIDI) || defined IAP
on tile[AUDIO_IO_TILE]:
{
thread_speed();
#ifdef MIDI
usb_midi(p_midi_rx, p_midi_tx, clk_midi, c_midi, 0, null, null, null, null);
#else
iAP(c_iap, null, i2cPorts.scl, i2cPorts.sda);
#endif
}
#endif
#ifdef SU1_ADC_ENABLE
xs1_su_adc_service(c_adc);
#endif
}
return 0;
}
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