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First stab at iOS in 6v0. Replug (i.e. reset notification) not working yet

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This commit is contained in:
Ross Owen
2013-01-29 16:47:53 +00:00
parent 127711e425
commit 4aafabd7cc
8 changed files with 127 additions and 55 deletions
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55
module_usb_audio/usb_buffer/decouple.xc
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@@ -77,8 +77,7 @@ unsigned dir = 0;
void GetADCCounts(unsigned samFreq, int &min, int &mid, int &max);
//#ifdef IAP
#if 0
#ifdef IAP
static inline void swap(xc_ptr &a, xc_ptr &b)
{
xc_ptr tmp;
@@ -88,7 +87,7 @@ static inline void swap(xc_ptr &a, xc_ptr &b)
return;
}
unsigned g_iap_reset = 0;
unsigned g_iap_reset = 1;
unsigned g_iap_from_host_flag = 0;
unsigned g_iap_to_host_flag = 0;
int iap_to_host_usb_ep = 0;
@@ -98,6 +97,7 @@ unsigned int g_iap_to_host_buffer_A[MAX_IAP_PACKET_SIZE/4+4];
unsigned int g_iap_to_host_buffer_B[MAX_IAP_PACKET_SIZE/4+4];
int g_iap_from_host_buffer[MAX_IAP_PACKET_SIZE/4+4];
unsigned g_zero_buffer[1];
unsigned char gc_zero_buffer[4];
#endif
//#ifdef HID_CONTROLS
@@ -567,6 +567,26 @@ void decouple(chanend c_mix_out,
int aud_to_host_flag = 0;
#endif
#ifdef IAP
xc_ptr iap_from_host_rdptr;
xc_ptr iap_from_host_buffer;
xc_ptr iap_to_host_buffer_being_sent = array_to_xc_ptr(g_iap_to_host_buffer_A);
xc_ptr iap_to_host_buffer_being_collected = array_to_xc_ptr(g_iap_to_host_buffer_B);
xc_ptr zero_buffer = array_to_xc_ptr(g_zero_buffer);
int is_ack_iap;
int is_reset;
int iap_reset;
unsigned int datum_iap;
int iap_data_remaining_to_device = 0;
int iap_data_collected_from_device = 0;
int iap_waiting_on_send_to_host = 0;
int iap_to_host_flag = 0;
int iap_from_host_flag = 0;
int iap_expecting_length = 1;
int iap_expecting_data_length = 0;
#endif
int t = array_to_xc_ptr(outAudioBuff);
int aud_in_ready = 0;
@@ -625,16 +645,16 @@ void decouple(chanend c_mix_out,
set_interrupt_handler(handle_audio_request, 200, 1, c_mix_out, 0);
#if 0
//#ifdef IAP
#ifdef IAP
//asm("ldaw %0, dp[g_iap_to_host_buffer]":"=r"(iap_to_host_buffer));
asm("ldaw %0, dp[g_iap_from_host_buffer]":"=r"(iap_from_host_buffer));
// wait for usb_buffer to set up
while(!iap_from_host_flag) {
GET_SHARED_GLOBAL(iap_from_host_flag, g_iap_from_host_flag);
while(!iap_from_host_flag)
{
GET_SHARED_GLOBAL(iap_from_host_flag, g_iap_from_host_flag);
}
iap_from_host_flag = 0;
SET_SHARED_GLOBAL(g_iap_from_host_flag, iap_from_host_flag);
@@ -968,8 +988,8 @@ void decouple(chanend c_mix_out,
#endif // INPUT
#if 0
//#ifdef IAP
//#if 0
#ifdef IAP
GET_SHARED_GLOBAL(iap_reset, g_iap_reset);
if (iap_reset)
{
@@ -997,8 +1017,8 @@ void decouple(chanend c_mix_out,
swap(iap_to_host_buffer_being_collected, iap_to_host_buffer_being_sent);
/* Request to send packet */
//XUD_SetReady_InPtr(iap_to_host_int_usb_ep, 0, zero_buffer, 0); // ZLP to int ep
//XUD_SetReady_InPtr(iap_to_host_usb_ep, 0, iap_to_host_buffer_being_sent+4, iap_data_collected_from_device);
XUD_SetReady_In(iap_to_host_int_usb_ep, gc_zero_buffer, 0); // ZLP to int ep
XUD_SetReady_InPtr(iap_to_host_usb_ep, iap_to_host_buffer_being_sent+4, iap_data_collected_from_device);
/* Mark as waiting for host to poll us */
iap_waiting_on_send_to_host = 1;
@@ -1028,12 +1048,15 @@ void decouple(chanend c_mix_out,
// Don't expect ack from this to make it simpler
outuint(c_iap, iap_data_remaining_to_device);
//printintln(iap_data_remaining_to_device);
/* Increment read pointer - buffer[0] is length */
iap_from_host_rdptr = iap_from_host_buffer + 4;
if (iap_data_remaining_to_device)
{
read_byte_via_xc_ptr(datum_iap, iap_from_host_rdptr);
//printintln(datum_iap);
outuint(c_iap, datum_iap);
iap_from_host_rdptr += 1;
iap_data_remaining_to_device -= 1;
@@ -1045,6 +1068,7 @@ void decouple(chanend c_mix_out,
{
/* Received word from iap thread - Check for ACK or Data */
case iap_get_ack_or_reset_or_data(c_iap, is_ack_iap, is_reset, datum_iap):
if (is_ack_iap)
{
/* An ack from the iap/uart thread means it has accepted some data we sent it
@@ -1052,7 +1076,7 @@ void decouple(chanend c_mix_out,
if (iap_data_remaining_to_device == 0)
{
/* We have read an entire packet - Mark ready to receive another */
//XUD_SetReady(iap_from_host_usb_ep, 1);
XUD_SetReady_OutPtr(iap_from_host_usb_ep, iap_from_host_buffer+4);
}
else
{
@@ -1093,8 +1117,9 @@ void decouple(chanend c_mix_out,
swap(iap_to_host_buffer_being_collected, iap_to_host_buffer_being_sent);
// Signal other side to swap
//XUD_SetReady_In(iap_to_host_int_usb_ep, 0, zero_buffer, 0);
//XUD_SetReady_In(iap_to_host_usb_ep, 0, iap_to_host_buffer_being_sent+4, iap_data_collected_from_device);
XUD_SetReady_In(iap_to_host_int_usb_ep, gc_zero_buffer, 0);
//printintln(iap_data_collected_from_device);
XUD_SetReady_InPtr(iap_to_host_usb_ep, iap_to_host_buffer_being_sent+4, iap_data_collected_from_device);
iap_data_collected_from_device = 0;
iap_waiting_on_send_to_host = 1;
iap_expecting_length = 1;