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more work on sco over usb

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This commit is contained in:
matthias.ringwald@gmail.com 2015-02-13 15:34:43 +00:00
parent 38a1183bdf
commit 527e018d2a
1 changed files with 51 additions and 25 deletions
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76
platforms/posix/src/hci_transport_h2_libusb.c
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@ -65,6 +65,8 @@
#include "hci.h"
#include "hci_transport.h"
// #define HAVE_SCO
#if (USB_VENDOR_ID != 0) && (USB_PRODUCT_ID != 0)
#define HAVE_USB_VENDOR_ID_AND_PRODUCT_ID
#endif
@ -105,9 +107,10 @@ static struct libusb_transfer *event_in_transfer[ASYNC_BUFFERS];
static struct libusb_transfer *acl_in_transfer[ASYNC_BUFFERS];
#ifdef HAVE_SCO
#define SCO_PACKET_SIZE 300
static struct libusb_transfer *sco_out_transfer;
static struct libusb_transfer *sco_in_transfer[ASYNC_BUFFERS];
static uint8_t hci_sco_in_buffer[ASYNC_BUFFERS][HCI_INCOMING_PRE_BUFFER_SIZE + HCI_ACL_BUFFER_SIZE];
static uint8_t hci_sco_in_buffer[ASYNC_BUFFERS][SCO_PACKET_SIZE];
#endif
static uint8_t hci_cmd_buffer[3 + 256 + LIBUSB_CONTROL_SETUP_SIZE];
@ -309,6 +312,12 @@ static int is_known_bt_device(uint16_t vendor_id, uint16_t product_id){
static void scan_for_bt_endpoints(void) {
int r;
event_in_addr = 0;
acl_in_addr = 0;
acl_out_addr = 0;
sco_out_addr = 0;
sco_in_addr = 0;
// get endpoints from interface descriptor
struct libusb_config_descriptor *config_descriptor;
r = libusb_get_active_config_descriptor(dev, &config_descriptor);
@ -329,25 +338,30 @@ static void scan_for_bt_endpoints(void) {
switch (endpoint->bmAttributes & 0x3){
case LIBUSB_TRANSFER_TYPE_INTERRUPT:
if (event_in_addr) continue;
event_in_addr = endpoint->bEndpointAddress;
log_info("-> using 0x%2.2X for HCI Events", event_in_addr);
break;
case LIBUSB_TRANSFER_TYPE_BULK:
if (endpoint->bEndpointAddress & 0x80) {
if (acl_in_addr) continue;
acl_in_addr = endpoint->bEndpointAddress;
log_info("-> using 0x%2.2X for ACL Data In", acl_in_addr);
} else {
if (acl_out_addr) continue;
acl_out_addr = endpoint->bEndpointAddress;
log_info("-> using 0x%2.2X for ACL Data Out", acl_out_addr);
}
break;
case LIBUSB_TRANSFER_TYPE_ISOCHRONOUS:
if (endpoint->bEndpointAddress & 0x80) {
// acl_in_addr = endpoint->bEndpointAddress;
log_info("-> using 0x%2.2X for SCO Data In", endpoint->bEndpointAddress);
if (sco_in_addr) continue;
sco_in_addr = endpoint->bEndpointAddress;
log_info("-> using 0x%2.2X for SCO Data In", sco_in_addr);
} else {
// acl_out_addr = endpoint->bEndpointAddress;
log_info("-> using 0x%2.2X for SCO Data Out", endpoint->bEndpointAddress);
if (sco_out_addr) continue;
sco_out_addr = endpoint->bEndpointAddress;
log_info("-> using 0x%2.2X for SCO Data Out", sco_out_addr);
}
break;
default:
@ -470,6 +484,8 @@ static int usb_open(void *transport_config){
sco_in_addr = 0x83; // EP3, IN isochronous
sco_out_addr = 0x03; // EP3, OUT isochronous
int iMaxIsoPacketSize = 100;
// USB init
r = libusb_init(NULL);
if (r < 0) return -1;
@ -549,6 +565,9 @@ static int usb_open(void *transport_config){
continue;
}
iMaxIsoPacketSize = libusb_get_max_iso_packet_size(devs[deviceIndex], 0x03); // 0x03 is hack
log_info("max iso packet size %d", iMaxIsoPacketSize);
libusb_state = LIB_USB_INTERFACE_CLAIMED;
break;
@ -583,6 +602,33 @@ static int usb_open(void *transport_config){
libusb_state = LIB_USB_TRANSFERS_ALLOCATED;
#ifdef HAVE_SCO
for (c = 0 ; c < ASYNC_BUFFERS ; c++) {
sco_in_transfer[c] = libusb_alloc_transfer(NUM_ISO_PACKETS); // isochronous transfers SCO in
log_info("Alloc iso transfer");
if (!sco_in_transfer[c]) {
usb_close(handle);
return LIBUSB_ERROR_NO_MEM;
}
// configure sco_in handlers
libusb_fill_iso_transfer(sco_in_transfer[c], handle, sco_in_addr,
hci_sco_in_buffer[c], iMaxIsoPacketSize, NUM_ISO_PACKETS, async_callback, NULL, 0) ;
libusb_set_iso_packet_lengths(sco_in_transfer[c], NUM_ISO_PACKETS);
sco_in_transfer[c]->type = LIBUSB_TRANSFER_TYPE_ISOCHRONOUS;
sco_in_transfer[c]->num_iso_packets = NUM_ISO_PACKETS;
sco_in_transfer[c]->iso_packet_desc[0].length = 300;
r = libusb_submit_transfer(sco_in_transfer[c]);
log_info("Submit iso transfer res = %d", r);
if (r) {
log_error("Error submitting isochronous in transfer %d", r);
usb_close(handle);
return r;
}
}
sco_out_transfer = libusb_alloc_transfer(1); // 1 isochronous transfers SCO out
#endif
for (c = 0 ; c < ASYNC_BUFFERS ; c++) {
// configure event_in handlers
libusb_fill_interrupt_transfer(event_in_transfer[c], handle, event_in_addr,
@ -606,26 +652,6 @@ static int usb_open(void *transport_config){
}
#ifdef HAVE_SCO
for (c = 0 ; c < ASYNC_BUFFERS ; c++) {
sco_in_transfer[c] = libusb_alloc_transfer(1); // 1 isochronous transfers SCO in
if (!sco_in_transfer[c]) {
usb_close(handle);
return LIBUSB_ERROR_NO_MEM;
}
// configure sco_in handlers
libusb_fill_iso_transfer(sco_in_transfer[c], handle, sco_in_addr,
hci_sco_in_buffer[c] + HCI_INCOMING_PRE_BUFFER_SIZE, HCI_ACL_BUFFER_SIZE, NUM_ISO_PACKETS, async_callback, NULL, 0) ;
r = libusb_submit_transfer(sco_in_transfer[c]);
if (r) {
log_error("Error submitting isochronous in transfer %d", r);
usb_close(handle);
return r;
}
}
sco_out_transfer = libusb_alloc_transfer(1); // 1 isochronous transfers SCO out
#endif
// Check for pollfds functionality
doing_pollfds = libusb_pollfds_handle_timeouts(NULL);