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Support the no CDC protocol as well.

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This commit is contained in:
Scott Shawcroft 2018-11-09 11:30:51 -08:00
parent 537a29273c
commit 299a2f12de
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GPG Key ID: FD0EDC4B6C53CA59
2 changed files with 5 additions and 2 deletions
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3
src/class/cdc/cdc.h
View File

@ -90,7 +90,8 @@ typedef enum
/// Communication Interface Protocol Codes
typedef enum
{
CDC_COMM_PROTOCOL_ATCOMMAND = 0x01 , ///< AT Commands: V.250 etc
CDC_COMM_PROTOCOL_NONE = 0x00 , ///< No specific protocol
CDC_COMM_PROTOCOL_ATCOMMAND , ///< AT Commands: V.250 etc
CDC_COMM_PROTOCOL_ATCOMMAND_PCCA_101 , ///< AT Commands defined by PCCA-101
CDC_COMM_PROTOCOL_ATCOMMAND_PCCA_101_AND_ANNEXO , ///< AT Commands defined by PCCA-101 & Annex O
CDC_COMM_PROTOCOL_ATCOMMAND_GSM_707 , ///< AT Commands defined by GSM 07.07

4
src/class/cdc/cdc_device.c
View File

@ -227,8 +227,10 @@ tusb_error_t cdcd_open(uint8_t rhport, tusb_desc_interface_t const * p_interface
{
if ( CDC_COMM_SUBCLASS_ABSTRACT_CONTROL_MODEL != p_interface_desc->bInterfaceSubClass) return TUSB_ERROR_CDC_UNSUPPORTED_SUBCLASS;
// Only support AT commands, no protocol and vendor specific commands.
if ( !(tu_within(CDC_COMM_PROTOCOL_ATCOMMAND, p_interface_desc->bInterfaceProtocol, CDC_COMM_PROTOCOL_ATCOMMAND_CDMA) ||
0xff == p_interface_desc->bInterfaceProtocol) )
p_interface_desc->bInterfaceProtocol == CDC_COMM_PROTOCOL_NONE ||
p_interface_desc->bInterfaceProtocol == 0xff ) )
{
return TUSB_ERROR_CDC_UNSUPPORTED_PROTOCOL;
}