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Updated iap stuff

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This commit is contained in:
Ross Owen
2012-03-02 17:25:24 +00:00
parent ddd6e6523c
commit 017ef915bb
3 changed files with 263 additions and 218 deletions
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8
module_usb_aud_shared/endpoint0/audiorequests.xc
View File

@@ -889,6 +889,14 @@ int AudioClassRequests_2(XUD_ep ep0_out, XUD_ep ep0_in, SetupPacket &sp, chanend
storeFreq(buffer, i, 192000); storeFreq(buffer, i, 192000);
num_freqs++; num_freqs++;
#endif #endif
#if MAX_FREQ >= 352800
storeFreq(buffer, i, 352800);
num_freqs++;
#endif
#if MAX_FREQ >= 384000
storeFreq(buffer, i, 384000);
num_freqs++;
#endif
storeShort(buffer, 0, num_freqs); storeShort(buffer, 0, num_freqs);
// break; // break;
//} //}

6
module_usb_midi/src/usb_midi.h
View File

@@ -15,7 +15,7 @@
* \param cable_number the cable number of the MIDI implementation. * \param cable_number the cable number of the MIDI implementation.
* This should be set to 0. * This should be set to 0.
**/ **/
void usb_midi(in port ?p_midi_in, out port ?p_midi_out, void usb_midi(port ?p_midi_in, port ?p_midi_out,
clock ?clk_midi, clock ?clk_midi,
chanend c_midi, chanend c_midi,
unsigned cable_number, unsigned cable_number,
@@ -61,5 +61,7 @@ INLINE void midi_send_ack(chanend c) {
outuchar(c, 0); outuchar(c, 0);
outuchar(c, 0); outuchar(c, 0);
} }
#define MIDI_RATE (31250)
#define MIDI_BITTIME (XS1_TIMER_MHZ * 1000000 / MIDI_RATE)
#define MIDI_BITTIME_2 (MIDI_BITTIME>>1)
#endif // __usb_midi_h__ #endif // __usb_midi_h__

155
module_usb_midi/src/usb_midi.xc
View File

@@ -6,13 +6,14 @@
#include "midiinparse.h" #include "midiinparse.h"
#include "midioutparse.h" #include "midioutparse.h"
#include "queue.h" #include "queue.h"
//#include "port32A.h"
#ifdef IAP #ifdef IAP
#include "iAP.h" #include "iAP.h"
#include "iapuser.h"
#endif #endif
//#define MIDI_LOOPBACK 1 //#define MIDI_LOOPBACK 1
static unsigned makeSymbol(unsigned data) { static unsigned makeSymbol(unsigned data)
{
// Start and stop bits to the data packet // Start and stop bits to the data packet
// like 10'b1dddddddd0 // like 10'b1dddddddd0
return (data << 1) | 0x200; return (data << 1) | 0x200;
@@ -34,22 +35,26 @@ static inline void handle_byte_from_uart(chanend c_midi, struct midi_in_parse_
int valid; int valid;
unsigned event; unsigned event;
{valid, event} = midi_in_parse(mips, cable_number, byte); {valid, event} = midi_in_parse(mips, cable_number, byte);
if (valid && !got_next_event) { if (valid && !got_next_event)
{
// data to send to host // data to send to host
if (!waiting_for_ack) { if (!waiting_for_ack)
{
// send data // send data
event = byterev(event); event = byterev(event);
outuint(c_midi, event); outuint(c_midi, event);
th_count++; th_count++;
waiting_for_ack = 1; waiting_for_ack = 1;
} }
else { else
{
event = byterev(event); event = byterev(event);
next_event = event; next_event = event;
got_next_event = 1; got_next_event = 1;
} }
} }
else if (valid) { else if (valid)
{
// printstr("g\n"); // printstr("g\n");
} }
} }
@@ -68,27 +73,11 @@ unsigned authenticating = 0;
// state for auto-selecting dock or USB B // state for auto-selecting dock or USB B
extern unsigned polltime; extern unsigned polltime;
#ifdef IO_EXPANSION #ifdef IAP
extern port p_i2c_scl;
extern port p_i2c_sda;
#define p_midi_out p_i2c_scl
#define p_midi_in p_i2c_sda
#else
//extern out port p_midi_tx;
//extern port p_midi_rx;
#define p_midi_out p_midi_tx
#define p_midi_in p_midi_rx
#endif
//#ifdef IO_EXPANSION
#if 0
extern timer i2ctimer;
#define iAPTimer i2ctimer
#else
timer iAPTimer; timer iAPTimer;
#endif #endif
void usb_midi(in port ?p_midi_in, out port ?p_midi_out, void usb_midi(port ?p_midi_in, port ?p_midi_out,
clock ?clk_midi, clock ?clk_midi,
chanend c_midi, chanend c_midi,
unsigned cable_number, unsigned cable_number,
@@ -142,39 +131,41 @@ void usb_midi(in port ?p_midi_in, out port ?p_midi_out,
#ifndef MIDI_LOOPBACK #ifndef MIDI_LOOPBACK
#ifdef IAP #ifdef IAP
#ifdef IO_EXPANSION CoProcessorDisable();
port32A_unset(P32A_I2C_NOTMIDI);
#endif
#endif #endif
p_midi_out <: 1; // Start with high bit. p_midi_out <: 1; // Start with high bit.
#ifdef IAP #ifdef IAP
#ifdef IO_EXPANSION CoProcessorEnable();
port32A_set(P32A_I2C_NOTMIDI);
#endif
#endif #endif
#endif #endif
#ifdef IAP #ifdef IAP
/* Check for special case where MIDI and i2c ports are shared... */
if(isnull(c_i2c) && isnull(p_scl) && isnull(p_sda))
{
init_iAP(c_i2c, p_midi_out, p_midi_in); // uses timer for i2c initialisation pause..
}
else
{
init_iAP(c_i2c, p_scl, p_sda); // uses timer for i2c initialisation pause.. init_iAP(c_i2c, p_scl, p_sda); // uses timer for i2c initialisation pause..
}
#endif #endif
{ {
#ifdef IAP #ifdef IAP
iAPTimer :> polltime; iAPTimer :> polltime;
polltime + XS1_TIMER_HZ / 2; polltime += XS1_TIMER_HZ / 2;
#endif #endif
while (1) { while (1)
{
int is_ack; int is_ack;
int is_reset; int is_reset;
unsigned int datum; unsigned int datum;
select { select
{
// Input to read the start bit // Input to read the start bit
#ifndef MIDI_LOOPBACK #ifndef MIDI_LOOPBACK
#ifdef MIDI_IN_4BIT_PORT
case (!authenticating && !isRX) => p_midi_in when pinseq(0xE) :> void @ rxPT:
#else
case (!authenticating && !isRX) => p_midi_in when pinseq(0) :> void @ rxPT: case (!authenticating && !isRX) => p_midi_in when pinseq(0) :> void @ rxPT:
#endif
isRX = 1; isRX = 1;
t2 :> rxT; t2 :> rxT;
rxT += (bit_time + bit_time_2); rxT += (bit_time + bit_time_2);
@@ -183,20 +174,25 @@ void usb_midi(in port ?p_midi_in, out port ?p_midi_out,
asm("setc res[%0],1"::"r"(p_midi_in)); asm("setc res[%0],1"::"r"(p_midi_in));
asm("setpt res[%0],%1"::"r"(p_midi_in),"r"(rxPT)); asm("setpt res[%0],%1"::"r"(p_midi_in),"r"(rxPT));
break; break;
// Input to read the remaining bits // Input to read the remaining bits
case (!authenticating && isRX) => t2 when timerafter(rxT) :> int _ : case (!authenticating && isRX) => t2 when timerafter(rxT) :> int _ :
{ {
unsigned bit; unsigned bit;
p_midi_in :> bit; p_midi_in :> bit;
if (rxI++ < 8) { if (rxI++ < 8)
{
// shift in bits into the high end of a word // shift in bits into the high end of a word
rxByte = (bit << 31) | (rxByte >> 1); rxByte = (bit << 31) | (rxByte >> 1);
rxT += bit_time; rxT += bit_time;
rxPT += bit_time; rxPT += bit_time;
asm("setpt res[%0],%1"::"r"(p_midi_in),"r"(rxPT)); asm("setpt res[%0],%1"::"r"(p_midi_in),"r"(rxPT));
} else { }
else
{
// rcv and check stop bit // rcv and check stop bit
if ((bit & 0x1) == 1) { if ((bit & 0x1) == 1)
{
unsigned valid = 0; unsigned valid = 0;
unsigned event = 0; unsigned event = 0;
uin_count++; uin_count++;
@@ -208,19 +204,25 @@ void usb_midi(in port ?p_midi_in, out port ?p_midi_out,
// } // }
{valid, event} = midi_in_parse(mips, cable_number, rxByte); {valid, event} = midi_in_parse(mips, cable_number, rxByte);
if (valid && isempty(midi_to_host_fifo)) { if (valid && isempty(midi_to_host_fifo))
{
event = byterev(event); event = byterev(event);
// data to send to host - add to fifo // data to send to host - add to fifo
if (!waiting_for_ack) { if (!waiting_for_ack)
{
// send data // send data
// printstr("uart->decouple: "); // printstr("uart->decouple: ");
outuint(c_midi, event); outuint(c_midi, event);
waiting_for_ack = 1; waiting_for_ack = 1;
th_count++; th_count++;
} else { }
else
{
enqueue(midi_to_host_fifo, event); enqueue(midi_to_host_fifo, event);
} }
} else if (valid) { }
else if (valid)
{
// printstr("g"); // printstr("g");
} }
} }
@@ -234,7 +236,8 @@ void usb_midi(in port ?p_midi_in, out port ?p_midi_out,
// until symbol is zero expect pattern like 10'b1dddddddd0 // until symbol is zero expect pattern like 10'b1dddddddd0
// This code will leave the output high afterwards due to the stop bit added with makeSymbol // This code will leave the output high afterwards due to the stop bit added with makeSymbol
case (!authenticating && isTX) => t when timerafter(txT) :> int _: case (!authenticating && isTX) => t when timerafter(txT) :> int _:
if (symbol == 0) { if (symbol == 0)
{
// Got something to output but not mid-symbol. // Got something to output but not mid-symbol.
// Start sending symbol. // Start sending symbol.
// This case is reached when a symbol has been received from the host but not started AND // This case is reached when a symbol has been received from the host but not started AND
@@ -244,7 +247,8 @@ void usb_midi(in port ?p_midi_in, out port ?p_midi_out,
outputting_symbol = dequeue(symbol_fifo); outputting_symbol = dequeue(symbol_fifo);
symbol = makeSymbol(outputting_symbol); symbol = makeSymbol(outputting_symbol);
if (space(symbol_fifo) > 3 && midi_from_host_overflow) { if (space(symbol_fifo) > 3 && midi_from_host_overflow)
{
midi_from_host_overflow = 0; midi_from_host_overflow = 0;
midi_send_ack(c_midi); midi_send_ack(c_midi);
} }
@@ -255,18 +259,22 @@ void usb_midi(in port ?p_midi_in, out port ?p_midi_out,
txT += bit_time; txT += bit_time;
txPT += bit_time; txPT += bit_time;
isTX = 1; isTX = 1;
} else { }
else
{
// Mid-symbol // Mid-symbol
txT += bit_time; // Should this be after the output otherwise be double the length of the high before the start bit txT += bit_time; // Should this be after the output otherwise be double the length of the high before the start bit
txPT += bit_time; txPT += bit_time;
p_midi_out @ txPT <: (symbol & 1); p_midi_out @ txPT <: (symbol & 1);
// printstr("mout2\n"); // printstr("mout2\n");
symbol >>= 1; symbol >>= 1;
if (symbol == 0) { if (symbol == 0)
{
// Finished sending byte // Finished sending byte
uout_count++; uout_count++;
outputted_symbol = outputting_symbol; outputted_symbol = outputting_symbol;
if (isempty(symbol_fifo)) { // FIFO empty if (isempty(symbol_fifo))
{ // FIFO empty
isTX = 0; isTX = 0;
} }
} }
@@ -275,50 +283,66 @@ void usb_midi(in port ?p_midi_in, out port ?p_midi_out,
#endif #endif
case !authenticating => midi_get_ack_or_data(c_midi, is_ack, datum): case !authenticating => midi_get_ack_or_data(c_midi, is_ack, datum):
if (is_ack) {
if (is_ack)
{
// have we got more data to send // have we got more data to send
//printstr("ack\n"); //printstr("ack\n");
if (!isempty(midi_to_host_fifo)) { if (!isempty(midi_to_host_fifo))
{
//printstr("uart->decouple\n"); //printstr("uart->decouple\n");
outuint(c_midi, dequeue(midi_to_host_fifo)); outuint(c_midi, dequeue(midi_to_host_fifo));
th_count++; th_count++;
} else { }
else
{
waiting_for_ack = 0; waiting_for_ack = 0;
} }
} else { }
else
{
unsigned midi[3]; unsigned midi[3];
unsigned size; unsigned size;
// received data from host // received data from host
int event = byterev(datum); int event = byterev(datum);
mr_count++; mr_count++;
#ifdef MIDI_LOOPBACK #ifdef MIDI_LOOPBACK
if (isempty(midi_to_host_fifo)) { if (isempty(midi_to_host_fifo))
{
// data to send to host // data to send to host
if (!waiting_for_ack) { if (!waiting_for_ack)
{
// send data // send data
event = byterev(event); event = byterev(event);
outuint(c_midi, event); outuint(c_midi, event);
th_count++; th_count++;
waiting_for_ack = 1; waiting_for_ack = 1;
} else { }
else
{
event = byterev(event); event = byterev(event);
enqueue(midi_to_host_fifo, event); enqueue(midi_to_host_fifo, event);
} }
} }
#else #else
{midi[0], midi[1], midi[2], size} = midi_out_parse(event); {midi[0], midi[1], midi[2], size} = midi_out_parse(event);
for (int i = 0; i != size; i++) { for (int i = 0; i != size; i++)
{
// add symbol to fifo // add symbol to fifo
enqueue(symbol_fifo, midi[i]); enqueue(symbol_fifo, midi[i]);
} }
if (space(symbol_fifo) > 3) { if (space(symbol_fifo) > 3)
{
midi_send_ack(c_midi); midi_send_ack(c_midi);
} else { }
else
{
midi_from_host_overflow = 1; midi_from_host_overflow = 1;
} }
// Drop through to the isTX guarded case // Drop through to the isTX guarded case
if (!isTX) { if (!isTX)
{
t :> txT; // Should be enough to trigger the other case t :> txT; // Should be enough to trigger the other case
isTX = 1; isTX = 1;
} }
@@ -327,13 +351,24 @@ void usb_midi(in port ?p_midi_in, out port ?p_midi_out,
break; break;
#ifdef IAP #ifdef IAP
case !(isTX || isRX) => iap_get_ack_or_reset_or_data(c_iap, is_ack, is_reset, datum): case !(isTX || isRX) => iap_get_ack_or_reset_or_data(c_iap, is_ack, is_reset, datum):
/* Check for special case where MIDI ports are shared with i2c ports */
if(isnull(c_i2c) && isnull(p_scl) && isnull(p_sda))
{
handle_iap_case(is_ack, is_reset, datum, c_iap, c_i2c, p_midi_out, p_midi_in);
}
else
{
handle_iap_case(is_ack, is_reset, datum, c_iap, c_i2c, p_scl, p_sda); handle_iap_case(is_ack, is_reset, datum, c_iap, c_i2c, p_scl, p_sda);
}
if (!authenticating) if (!authenticating)
{ {
// printstrln("Completed authentication"); // printstrln("Completed authentication");
p_midi_in :> void; // Change port around to input again after authenticating (unique to midi+iAP case) p_midi_in :> void; // Change port around to input again after authenticating (unique to midi+iAP case)
} }
break; break;
/* Slow timer looking for IDevice plug/unplug event */
case iAPTimer when timerafter(polltime) :> void: case iAPTimer when timerafter(polltime) :> void:
handle_poll_dev_det(iAPTimer); handle_poll_dev_det(iAPTimer);
break; break;