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winusb: add iso packet sizes

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This commit is contained in:
Matthias Ringwald 2017-01-23 17:24:04 +01:00
parent b5ffb4cad6
commit a93756fc8a
1 changed files with 15 additions and 1 deletions
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16
platform/windows/hci_transport_h2_winusb.c
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@ -167,10 +167,24 @@ static WinUsb_GetCurrentFrameNumber_t WinUsb_GetCurrentFrameNumber;
// --> support only a single SCO connection
#define ALT_SETTING (1)
// alt setting for 1-3 connections and 8/16 bit
const int alt_setting_8_bit[] = {1,2,3};
const int alt_setting_16_bit[] = {2,4,5};
// for ALT_SETTING >= 1 and 8-bit channel, we need the following isochronous packets
// One complete SCO packet with 24 frames every 3 frames (== 3 ms)
#define NUM_ISO_PACKETS (3)
const uint16_t iso_packet_size_for_alt_setting[] = {
0,
9,
17,
25,
33,
49,
63,
};
// results in 9 bytes per frame
#define ISO_PACKET_SIZE (9)
@ -903,7 +917,7 @@ static int usb_try_open_device(const char * device_path){
memset(hci_sco_packet_descriptors, 0, sizeof(hci_sco_packet_descriptors));
log_info("Size of packet descriptors for SCO IN%u", (int) sizeof(hci_sco_packet_descriptors));
result = WinUsb_RegisterIsochBuffer(usb_interface_1_handle, sco_in_addr, hci_sco_in_buffer, ISOC_BUFFERS * SCO_PACKET_SIZE, &hci_sco_in_buffer_handle);
result = WinUsb_RegisterIsochBuffer(usb_interface_1_handle, sco_in_addr, hci_sco_in_buffer, sizeof(hci_sco_in_buffer), &hci_sco_in_buffer_handle);
if (!result) goto exit_on_error;
log_info("hci_sco_in_buffer_handle %p", hci_sco_in_buffer_handle);