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ch552: Fix CDC configuration problem on Windows

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Fix CDC configuration problem on Windows when we have a composite
device (multiple different Device Classes). Add "Interface Association
Descriptor" to make it work.
This commit is contained in:
Jonas Thörnblad 2025-01-17 15:30:36 +01:00 committed by Mikael Ågren
parent 04ec938200
commit 5029eb1d39
No known key found for this signature in database
GPG Key ID: E02DA3D397792C46
1 changed files with 30 additions and 27 deletions
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57
hw/usb_interface/ch552_fw/main.c
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@ -60,6 +60,9 @@ USB_SETUP_REQ SetupReqBuf = { 0 }; // Temporary Setup package
#define HID_FS_BINTERVAL 1 // 1 ms polling interval at Full Speed #define HID_FS_BINTERVAL 1 // 1 ms polling interval at Full Speed
#define TKEYCTRL_FS_BINTERVAL 1 // 1 ms polling interval at Full Speed #define TKEYCTRL_FS_BINTERVAL 1 // 1 ms polling interval at Full Speed
#define CFGDESC_SIZE 139U // Size of CfgDesc
#define NUM_INTERFACES 4 // Number of interfaces
#define HID_REPORT_DESC_SIZE 47 // Size of HID_ReportDesc #define HID_REPORT_DESC_SIZE 47 // Size of HID_ReportDesc
#define TKEYCTRL_REPORT_DESC_SIZE 34 // Size of TKEYCTRL_ReportDesc #define TKEYCTRL_REPORT_DESC_SIZE 34 // Size of TKEYCTRL_ReportDesc
@ -70,18 +73,18 @@ USB_SETUP_REQ SetupReqBuf = { 0 }; // Temporary Setup package
FLASH uint8_t DevDesc[] = { FLASH uint8_t DevDesc[] = {
0x12, /* bLength */ 0x12, /* bLength */
USB_DESC_TYPE_DEVICE, /* bDescriptorType: Device */ USB_DESC_TYPE_DEVICE, /* bDescriptorType: Device */
0x10, /* bcdUSB (low byte), USB Specification Release Number in Binary-Coded Decimal (1.10 is 110h) */ 0x00, /* bcdUSB (low byte), USB Specification Release Number in Binary-Coded Decimal (2.0 is 200h) */
0x01, /* bcdUSB (high byte) USB Specification Release Number in Binary-Coded Decimal (1.10 is 110h) */ 0x02, /* bcdUSB (high byte) USB Specification Release Number in Binary-Coded Decimal (2.0 is 200h) */
0x00, /* bDeviceClass */ // Each configuration has its own class USB_DEV_CLASS_MISCELLANEOUS, /* bDeviceClass: Miscellaneous Device Class (Composite) */
0x00, /* bDeviceSubClass */ // Each configuration has its own sub-class 0x02, /* bDeviceSubClass: Common Class */
0x00, /* bDeviceProtocol */ // Each configuration has its own protocol 0x01, /* bDeviceProtocol: IAD (Interface Association Descriptor) */
DEFAULT_EP0_SIZE, /* bMaxPacketSize */ DEFAULT_EP0_SIZE, /* bMaxPacketSize */
0x07, /* idVendor */ // VID LOBYTE 0x07, /* idVendor */ // VID LOBYTE
0x12, /* idVendor */ // VID HIBYTE 0x12, /* idVendor */ // VID HIBYTE
0x87, /* idProduct */ // PID LOBYTE 0x87, /* idProduct */ // PID LOBYTE
0x88, /* idProduct */ // PID HIBYTE 0x88, /* idProduct */ // PID HIBYTE
0x00, /* bcdDevice (low byte, i.e. YY) rel. XX.YY */ 0x00, /* bcdDevice (device release number in binary-coded decimal (BCD) format, low byte, i.e. YY) rel. XX.YY */
0x01, /* bcdDevice (high byte, i.e. XX) rel. XX.YY */ // Orig: 0x02 0x01, /* bcdDevice (device release number in binary-coded decimal (BCD) format, high byte, i.e. XX) rel. XX.YY */
0x01, /* Index of manufacturer string */ 0x01, /* Index of manufacturer string */
0x02, /* Index of product string */ 0x02, /* Index of product string */
0x03, /* Index of serial number string */ 0x03, /* Index of serial number string */
@ -93,9 +96,9 @@ FLASH uint8_t CfgDesc[] = {
/******************** Configuration Descriptor ********************/ /******************** Configuration Descriptor ********************/
0x09, /* bLength: Configuration Descriptor size */ 0x09, /* bLength: Configuration Descriptor size */
USB_DESC_TYPE_CONFIGURATION, /* bDescriptorType: Configuration */ USB_DESC_TYPE_CONFIGURATION, /* bDescriptorType: Configuration */
131U, /* wTotalLength (low byte): Bytes returned */ CFGDESC_SIZE, /* wTotalLength (low byte): Bytes returned */
0x00, /* wTotalLength (high byte): Bytes returned */ 0x00, /* wTotalLength (high byte): Bytes returned */
0x04, /* bNumInterfaces: 4 interfaces (1 CDC Ctrl, 1 CDC Data, 1 HID, 1 HID (TKEYCTRL) ) */ NUM_INTERFACES, /* bNumInterfaces: 4 interfaces (1 CDC Ctrl, 1 CDC Data, 1 HID, 1 HID (TKEYCTRL) ) */
0x01, /* bConfigurationValue: Configuration value */ 0x01, /* bConfigurationValue: Configuration value */
0x00, /* iConfiguration: Index of string descriptor describing the configuration */ 0x00, /* iConfiguration: Index of string descriptor describing the configuration */
0xA0, /* bmAttributes: Bus powered and Support Remote Wake-up */ 0xA0, /* bmAttributes: Bus powered and Support Remote Wake-up */
@ -123,14 +126,14 @@ FLASH uint8_t CfgDesc[] = {
0x01, /* bInterfaceProtocol : AT Commands: V.250 etc */ 0x01, /* bInterfaceProtocol : AT Commands: V.250 etc */
0x04, /* iInterface: Index of string descriptor */ 0x04, /* iInterface: Index of string descriptor */
/******************** Header Functional Descriptor ********************/ /******************** Header Functional Descriptor ********************/
/* 18 */ /* 26 */
0x05, /* bFunctionLength: Size of this descriptor in bytes */ 0x05, /* bFunctionLength: Size of this descriptor in bytes */
USB_DESC_TYPE_CS_INTERFACE, /* bDescriptorType: CS_INTERFACE (24h) */ USB_DESC_TYPE_CS_INTERFACE, /* bDescriptorType: CS_INTERFACE (24h) */
0x00, /* bDescriptorSubtype: Header Functional Descriptor */ 0x00, /* bDescriptorSubtype: Header Functional Descriptor */
0x10, /* bcdCDC (low byte): CDC version 1.10 */ 0x10, /* bcdCDC (low byte): CDC version 1.10 */
0x01, /* bcdCDC (high byte): CDC version 1.10 */ 0x01, /* bcdCDC (high byte): CDC version 1.10 */
/******************** Call Management Functional Descriptor (no data interface, bmCapabilities=03, bDataInterface=01) ********************/ /******************** Call Management Functional Descriptor (no data interface, bmCapabilities=03, bDataInterface=01) ********************/
/* 23 */ /* 31 */
0x05, /* bFunctionLength: Size of this descriptor */ 0x05, /* bFunctionLength: Size of this descriptor */
USB_DESC_TYPE_CS_INTERFACE, /* bDescriptorType: CS_INTERFACE (24h) */ USB_DESC_TYPE_CS_INTERFACE, /* bDescriptorType: CS_INTERFACE (24h) */
0x01, /* bDescriptorSubtype: Call Management Functional Descriptor */ 0x01, /* bDescriptorSubtype: Call Management Functional Descriptor */
@ -142,7 +145,7 @@ FLASH uint8_t CfgDesc[] = {
1 - Device handles call management itself) */ 1 - Device handles call management itself) */
0x00, /* bDataInterface: Interface number of Data Class interface optionally used for call management */ 0x00, /* bDataInterface: Interface number of Data Class interface optionally used for call management */
/******************** Abstract Control Management Functional Descriptor ********************/ /******************** Abstract Control Management Functional Descriptor ********************/
/* 28 */ /* 36 */
0x04, /* bLength */ 0x04, /* bLength */
0x24, /* bDescriptorType: CS_INTERFACE (24h) */ 0x24, /* bDescriptorType: CS_INTERFACE (24h) */
0x02, /* bDescriptorSubtype: Abstract Control Management Functional Descriptor */ 0x02, /* bDescriptorSubtype: Abstract Control Management Functional Descriptor */
@ -153,14 +156,14 @@ FLASH uint8_t CfgDesc[] = {
D1 : 0x01 (1 - Device supports the request combination of Set_Line_Coding, Set_Control_Line_State, Get_Line_Coding, and the notification Serial_State) D1 : 0x01 (1 - Device supports the request combination of Set_Line_Coding, Set_Control_Line_State, Get_Line_Coding, and the notification Serial_State)
D0 : 0x00 (1 - Device supports the request combination of Set_Comm_Feature, Clear_Comm_Feature, and Get_Comm_Feature) */ D0 : 0x00 (1 - Device supports the request combination of Set_Comm_Feature, Clear_Comm_Feature, and Get_Comm_Feature) */
/******************** Union Functional Descriptor. CDC Ctrl interface numbered 0; CDC Data interface numbered 1 ********************/ /******************** Union Functional Descriptor. CDC Ctrl interface numbered 0; CDC Data interface numbered 1 ********************/
/* 32 */ /* 40 */
0x05, /* bLength */ 0x05, /* bLength */
0x24, /* bDescriptorType: CS_INTERFACE (24h) */ 0x24, /* bDescriptorType: CS_INTERFACE (24h) */
0x06, /* bDescriptorSubtype: Union Functional Descriptor */ 0x06, /* bDescriptorSubtype: Union Functional Descriptor */
0x00, /* bControlInterface: Interface number 0 (Control interface) */ 0x00, /* bControlInterface: Interface number 0 (Control interface) */
0x01, /* bSubordinateInterface0: Interface number 1 (Data interface) */ 0x01, /* bSubordinateInterface0: Interface number 1 (Data interface) */
/******************** CDC Ctrl Endpoint descriptor (IN) ********************/ /******************** CDC Ctrl Endpoint descriptor (IN) ********************/
/* 37 */ /* 45 */
0x07, /* bLength: Endpoint Descriptor size */ 0x07, /* bLength: Endpoint Descriptor size */
USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */ USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */
CDC_CTRL_EPIN_ADDR, /* bEndpointAddress: Endpoint Address (IN) */ CDC_CTRL_EPIN_ADDR, /* bEndpointAddress: Endpoint Address (IN) */
@ -169,7 +172,7 @@ FLASH uint8_t CfgDesc[] = {
HIBYTE(CDC_CTRL_EPIN_SIZE), /* wMaxPacketSize (high byte): 8 Byte max */ HIBYTE(CDC_CTRL_EPIN_SIZE), /* wMaxPacketSize (high byte): 8 Byte max */
CDC_CTRL_FS_BINTERVAL, /* bInterval: Polling Interval */ CDC_CTRL_FS_BINTERVAL, /* bInterval: Polling Interval */
/******************** Interface 1, CDC Data Descriptor (two endpoints) ********************/ /******************** Interface 1, CDC Data Descriptor (two endpoints) ********************/
/* 44 */ /* 52 */
0x09, /* bLength: Interface Descriptor size */ 0x09, /* bLength: Interface Descriptor size */
USB_DESC_TYPE_INTERFACE, /* bDescriptorType: Interface */ USB_DESC_TYPE_INTERFACE, /* bDescriptorType: Interface */
0x01, /* bInterfaceNumber: Number of Interface */ 0x01, /* bInterfaceNumber: Number of Interface */
@ -180,7 +183,7 @@ FLASH uint8_t CfgDesc[] = {
0x00, /* bInterfaceProtocol : 0=none, 1=keyboard, 2=mouse */ 0x00, /* bInterfaceProtocol : 0=none, 1=keyboard, 2=mouse */
0x05, /* iInterface: Index of string descriptor */ 0x05, /* iInterface: Index of string descriptor */
/******************** CDC Data Endpoint descriptor (OUT) ********************/ /******************** CDC Data Endpoint descriptor (OUT) ********************/
/* 53 */ /* 61 */
0x07, /* bLength: Endpoint Descriptor size */ 0x07, /* bLength: Endpoint Descriptor size */
USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */ USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */
CDC_DATA_EPOUT_ADDR, /* bEndpointAddress: Endpoint Address (OUT) */ CDC_DATA_EPOUT_ADDR, /* bEndpointAddress: Endpoint Address (OUT) */
@ -189,7 +192,7 @@ FLASH uint8_t CfgDesc[] = {
HIBYTE(CDC_DATA_EPOUT_SIZE), /* wMaxPacketSize (high byte): 64 Byte max */ HIBYTE(CDC_DATA_EPOUT_SIZE), /* wMaxPacketSize (high byte): 64 Byte max */
CDC_DATA_FS_BINTERVAL, /* bInterval: Polling Interval */ CDC_DATA_FS_BINTERVAL, /* bInterval: Polling Interval */
/******************** CDC Data Endpoint descriptor (IN) ********************/ /******************** CDC Data Endpoint descriptor (IN) ********************/
/* 60 */ /* 68 */
0x07, /* bLength: Endpoint Descriptor size */ 0x07, /* bLength: Endpoint Descriptor size */
USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */ USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */
CDC_DATA_EPIN_ADDR, /* bEndpointAddress: Endpoint Address (IN) */ CDC_DATA_EPIN_ADDR, /* bEndpointAddress: Endpoint Address (IN) */
@ -198,7 +201,7 @@ FLASH uint8_t CfgDesc[] = {
HIBYTE(CDC_DATA_EPIN_SIZE), /* wMaxPacketSize (high byte): 64 Byte max */ HIBYTE(CDC_DATA_EPIN_SIZE), /* wMaxPacketSize (high byte): 64 Byte max */
CDC_DATA_FS_BINTERVAL, /* bInterval: Polling Interval */ CDC_DATA_FS_BINTERVAL, /* bInterval: Polling Interval */
/******************** Interface 2, HID Descriptor (two endpoints) ********************/ /******************** Interface 2, HID Descriptor (two endpoints) ********************/
/* 67 */ /* 75 */
0x09, /* bLength: Interface Descriptor size */ 0x09, /* bLength: Interface Descriptor size */
USB_DESC_TYPE_INTERFACE, /* bDescriptorType: Interface */ USB_DESC_TYPE_INTERFACE, /* bDescriptorType: Interface */
0x02, /* bInterfaceNumber: Number of Interface */ 0x02, /* bInterfaceNumber: Number of Interface */
@ -209,7 +212,7 @@ FLASH uint8_t CfgDesc[] = {
0x00, /* bInterfaceProtocol : 0=none, 1=keyboard, 2=mouse */ 0x00, /* bInterfaceProtocol : 0=none, 1=keyboard, 2=mouse */
0x06, /* iInterface: Index of string descriptor */ 0x06, /* iInterface: Index of string descriptor */
/******************** HID Device Descriptor ********************/ /******************** HID Device Descriptor ********************/
/* 76 */ /* 84 */
0x09, /* bLength: HID Descriptor size */ 0x09, /* bLength: HID Descriptor size */
USB_DESC_TYPE_HID, /* bDescriptorType: HID */ USB_DESC_TYPE_HID, /* bDescriptorType: HID */
0x11, /* bcdHID (low byte): HID Class Spec release number */ 0x11, /* bcdHID (low byte): HID Class Spec release number */
@ -220,7 +223,7 @@ FLASH uint8_t CfgDesc[] = {
LOBYTE(HID_REPORT_DESC_SIZE), /* wDescriptorLength (low byte): Total length of Report descriptor */ LOBYTE(HID_REPORT_DESC_SIZE), /* wDescriptorLength (low byte): Total length of Report descriptor */
HIBYTE(HID_REPORT_DESC_SIZE), /* wDescriptorLength (high byte): Total length of Report descriptor */ HIBYTE(HID_REPORT_DESC_SIZE), /* wDescriptorLength (high byte): Total length of Report descriptor */
/******************** HID Endpoint Descriptor (OUT) ********************/ /******************** HID Endpoint Descriptor (OUT) ********************/
/* 85 */ /* 93 */
0x07, /* bLength: Endpoint Descriptor size */ 0x07, /* bLength: Endpoint Descriptor size */
USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */ USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */
HID_EPOUT_ADDR, /* bEndpointAddress: Endpoint Address (OUT) */ HID_EPOUT_ADDR, /* bEndpointAddress: Endpoint Address (OUT) */
@ -229,7 +232,7 @@ FLASH uint8_t CfgDesc[] = {
HIBYTE(HID_EPOUT_SIZE), /* wMaxPacketSize (high byte): 64 Byte max */ HIBYTE(HID_EPOUT_SIZE), /* wMaxPacketSize (high byte): 64 Byte max */
HID_FS_BINTERVAL, /* bInterval: Polling Interval */ HID_FS_BINTERVAL, /* bInterval: Polling Interval */
/******************** HID Endpoint Descriptor (IN) ********************/ /******************** HID Endpoint Descriptor (IN) ********************/
/* 92 */ /* 100 */
0x07, /* bLength: Endpoint Descriptor size */ 0x07, /* bLength: Endpoint Descriptor size */
USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */ USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */
HID_EPIN_ADDR, /* bEndpointAddress: Endpoint Address (IN) */ HID_EPIN_ADDR, /* bEndpointAddress: Endpoint Address (IN) */
@ -238,7 +241,7 @@ FLASH uint8_t CfgDesc[] = {
HIBYTE(HID_EPIN_SIZE), /* wMaxPacketSize (high byte): 64 Byte max */ HIBYTE(HID_EPIN_SIZE), /* wMaxPacketSize (high byte): 64 Byte max */
HID_FS_BINTERVAL, /* bInterval: Polling Interval */ HID_FS_BINTERVAL, /* bInterval: Polling Interval */
/******************** Interface 3, HID (TKEYCTRL) Descriptor (two endpoints) ********************/ /******************** Interface 3, HID (TKEYCTRL) Descriptor (two endpoints) ********************/
/* 99 */ /* 107 */
0x09, /* bLength: Interface Descriptor size */ 0x09, /* bLength: Interface Descriptor size */
USB_DESC_TYPE_INTERFACE, /* bDescriptorType: Interface */ USB_DESC_TYPE_INTERFACE, /* bDescriptorType: Interface */
0x03, /* bInterfaceNumber: Number of Interface */ 0x03, /* bInterfaceNumber: Number of Interface */
@ -249,7 +252,7 @@ FLASH uint8_t CfgDesc[] = {
0x00, /* bInterfaceProtocol : 0=none, 1=keyboard, 2=mouse */ 0x00, /* bInterfaceProtocol : 0=none, 1=keyboard, 2=mouse */
0x07, /* iInterface: Index of string descriptor */ 0x07, /* iInterface: Index of string descriptor */
/******************** HID (TKEYCTRL) Device Descriptor ********************/ /******************** HID (TKEYCTRL) Device Descriptor ********************/
/* 108 */ /* 116 */
0x09, /* bLength: HID Descriptor size */ 0x09, /* bLength: HID Descriptor size */
USB_DESC_TYPE_HID, /* bDescriptorType: HID */ USB_DESC_TYPE_HID, /* bDescriptorType: HID */
0x11, /* bcdHID (low byte): HID Class Spec release number */ 0x11, /* bcdHID (low byte): HID Class Spec release number */
@ -260,7 +263,7 @@ FLASH uint8_t CfgDesc[] = {
LOBYTE(TKEYCTRL_REPORT_DESC_SIZE),/* wDescriptorLength (low byte): Total length of Report descriptor */ LOBYTE(TKEYCTRL_REPORT_DESC_SIZE),/* wDescriptorLength (low byte): Total length of Report descriptor */
HIBYTE(TKEYCTRL_REPORT_DESC_SIZE),/* wDescriptorLength (high byte): Total length of Report descriptor */ HIBYTE(TKEYCTRL_REPORT_DESC_SIZE),/* wDescriptorLength (high byte): Total length of Report descriptor */
/******************** HID (TKEYCTRL) Endpoint Descriptor (OUT) ********************/ /******************** HID (TKEYCTRL) Endpoint Descriptor (OUT) ********************/
/* 117 */ /* 125 */
0x07, /* bLength: Endpoint Descriptor size */ 0x07, /* bLength: Endpoint Descriptor size */
USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */ USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */
TKEYCTRL_EPOUT_ADDR, /* bEndpointAddress: Endpoint Address (OUT) */ TKEYCTRL_EPOUT_ADDR, /* bEndpointAddress: Endpoint Address (OUT) */
@ -269,7 +272,7 @@ FLASH uint8_t CfgDesc[] = {
HIBYTE(TKEYCTRL_EPOUT_SIZE), /* wMaxPacketSize (high byte): 64 Byte max */ HIBYTE(TKEYCTRL_EPOUT_SIZE), /* wMaxPacketSize (high byte): 64 Byte max */
TKEYCTRL_FS_BINTERVAL, /* bInterval: Polling Interval */ TKEYCTRL_FS_BINTERVAL, /* bInterval: Polling Interval */
/******************** HID (TKEYCTRL) Endpoint Descriptor (IN) ********************/ /******************** HID (TKEYCTRL) Endpoint Descriptor (IN) ********************/
/* 124 */ /* 132 */
0x07, /* bLength: Endpoint Descriptor size */ 0x07, /* bLength: Endpoint Descriptor size */
USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */ USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */
TKEYCTRL_EPIN_ADDR, /* bEndpointAddress: Endpoint Address (IN) */ TKEYCTRL_EPIN_ADDR, /* bEndpointAddress: Endpoint Address (IN) */
@ -277,7 +280,7 @@ FLASH uint8_t CfgDesc[] = {
LOBYTE(TKEYCTRL_EPIN_SIZE), /* wMaxPacketSize (low byte): 64 Byte max */ LOBYTE(TKEYCTRL_EPIN_SIZE), /* wMaxPacketSize (low byte): 64 Byte max */
HIBYTE(TKEYCTRL_EPIN_SIZE), /* wMaxPacketSize (high byte): 64 Byte max */ HIBYTE(TKEYCTRL_EPIN_SIZE), /* wMaxPacketSize (high byte): 64 Byte max */
TKEYCTRL_FS_BINTERVAL, /* bInterval: Polling Interval */ TKEYCTRL_FS_BINTERVAL, /* bInterval: Polling Interval */
/* 131 */ /* 139 */
}; };
// HID Device Descriptor (copy from CfgDesc) // HID Device Descriptor (copy from CfgDesc)
@ -310,7 +313,7 @@ FLASH uint8_t HID_ReportDesc[] ={
0x26, 0xFF, 0x00, /* Logical Maximum (255) */ 0x26, 0xFF, 0x00, /* Logical Maximum (255) */
0x75, 0x08, /* Report Size (8) */ 0x75, 0x08, /* Report Size (8) */
0x95, MAX_PACKET_SIZE, /* Report Count (64) */ 0x95, MAX_PACKET_SIZE, /* Report Count (64) */
0x91, 0x02, /* Output (Data, Variable, Absolute); */ 0x91, 0x02, /* Output (Data, Variable, Absolute) */
/* 33 */ /* 33 */
0x09, 0x07, /* Usage (7, Reserved) */ 0x09, 0x07, /* Usage (7, Reserved) */
0x15, 0x00, /* Logical Minimum (0) */ 0x15, 0x00, /* Logical Minimum (0) */