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Add gadget mode for retro-bit GENERATIONS
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,142 @@ | ||
| static char opg_driver_name[] = | ||
| "OPiPad Gadget HID Driver for retro-bit GENERATIONS"; | ||
|
|
||
| #define OPG_USB_VERSION cpu_to_le16(0x200) | ||
| #define OPG_DEVICE_CLASS USB_CLASS_PER_INTERFACE | ||
| #define OPG_DEVICE_SUB_CLASS 0 | ||
| #define OPG_DEVICE_PROTOCOL 0 | ||
|
|
||
| #define OPG_VENDOR_ID 0x6666 | ||
| #define OPG_PRODUCT_ID 0x0880 | ||
|
|
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| static char opg_hid_report[] = { | ||
| 0x05, 0x01, // usage page (desktop) | ||
| 0x09, 0x04, // usage (sport control) | ||
| 0xa1, 0x01, // collection (application) | ||
| 0x75, 0x04, // report size (4) | ||
| 0x95, 0x02, // report count (2) | ||
| 0x15, 0x00, // logical minimum (0) | ||
| 0x25, 0x0f, // logical maximum (15) | ||
| 0x35, 0x00, // physical minimum (0) | ||
| 0x45, 0xff, // physical maximum (255) | ||
| 0x09, 0x30, // usage (x) | ||
| 0x09, 0x31, // usage (y) | ||
| 0x81, 0x02, // input (variable) | ||
| 0x75, 0x01, // report size (1) | ||
| 0x95, 0x06, // report count (6) | ||
| 0x25, 0x01, // logical maximum (1) | ||
| 0x45, 0x01, // physical maximum (1) | ||
| 0x05, 0x09, // usage page (button) | ||
| 0x19, 0x01, // usage minimum (1) | ||
| 0x29, 0x06, // usage maximum (6) | ||
| 0x81, 0x02, // input (variable) | ||
| 0x95, 0x02, // report count (2) | ||
| 0x19, 0x09, // usage minimum (9) | ||
| 0x29, 0x0a, // usage maximum (10) | ||
| 0x81, 0x02, // input (variable) | ||
| 0xc0, // end collection | ||
| }; | ||
|
|
||
| struct opg_config_descriptor { | ||
| struct usb_config_descriptor config; | ||
| struct usb_interface_descriptor interface; | ||
| struct usb_hid_descriptor hid; | ||
| struct usb_short_endpoint_descriptor ep_in; | ||
| } __attribute__ ((packed)) opg_config_desc = { | ||
| .config = { | ||
| .bLength = USB_DT_CONFIG_SIZE, | ||
| .bDescriptorType = USB_DT_CONFIG, | ||
| .wTotalLength = cpu_to_le16(sizeof(struct opg_config_descriptor)), | ||
| .bNumInterfaces = 1, | ||
| .bConfigurationValue = 1, | ||
| .iConfiguration = IDX_NULL, | ||
| .bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER, | ||
| .bMaxPower = 250, // x 2mA | ||
| }, | ||
| .interface = { | ||
| .bLength = USB_DT_INTERFACE_SIZE, | ||
| .bDescriptorType = USB_DT_INTERFACE, | ||
| .bInterfaceNumber = 0, | ||
| .bAlternateSetting = 0, | ||
| .bNumEndpoints = 1, | ||
| .bInterfaceClass = USB_CLASS_HID, | ||
| .bInterfaceSubClass = 0x00, | ||
| .bInterfaceProtocol = 0x00, | ||
| .iInterface = IDX_NULL, | ||
| }, | ||
| .hid = { | ||
| .bLength = sizeof(struct usb_hid_descriptor), | ||
| .bDescriptorType = USB_DT_HID, | ||
| .bcdHID = cpu_to_le16(0x0110), | ||
| .bCountryCode = 0, | ||
| .bNumReports = 1, | ||
| .bReportType = USB_DT_HID_REPORT, | ||
| .wReportLength = cpu_to_le16(sizeof(opg_hid_report)), | ||
| }, | ||
| .ep_in = { | ||
| .bLength = USB_DT_ENDPOINT_SIZE, | ||
| .bDescriptorType = USB_DT_ENDPOINT, | ||
| .bEndpointAddress = USB_DIR_IN | 4, // will be overriden | ||
| .bmAttributes = | ||
| USB_ENDPOINT_XFER_INT | USB_ENDPOINT_SYNC_NONE | USB_ENDPOINT_USAGE_DATA, | ||
| .wMaxPacketSize = 8, | ||
| .bInterval = 5, | ||
| }, | ||
| }; | ||
|
|
||
| static __u8 opg_report[] = { | ||
| //XY start mode C Z X A B Y | ||
| 0x88, 0x00, | ||
| }; | ||
|
|
||
| static const char* opg_get_string(int idx) { | ||
| switch (idx) { | ||
| case IDX_MANUFACTURER: | ||
| return "TOYOSHIMA-HOUSE"; | ||
| case IDX_PRODUCT: | ||
| return "OPiPad retro-bit GENERATIONS Adaptor"; | ||
| case IDX_SERIAL: | ||
| return "0"; | ||
| default: | ||
| break; | ||
| } | ||
| return NULL; | ||
| } | ||
|
|
||
| static void opg_update_report(void) { | ||
| const struct gpio_hid_state* state = gpio_get_state(); | ||
| opg_report[0] = | ||
| (!state->left ? 0 : !state->right ? 0x0f: 0x08) | | ||
| (!state->up ? 0 : !state->down ? 0xf0: 0x80); | ||
| opg_report[1] = | ||
| (state->x ? 0 : 0x01) | | ||
| (state->lt ? 0 : 0x02) | | ||
| (state->a ? 0 : 0x04) | | ||
| (state->b ? 0 : 0x08) | | ||
| (state->y ? 0 : 0x10) | | ||
| (state->rt ? 0 : 0x20) | | ||
| (state->back ? 0 : 0x40) | | ||
| (state->start ? 0 : 0x80); | ||
| } | ||
|
|
||
| static int opg_setup( | ||
| struct usb_gadget* gadget, const struct usb_ctrlrequest* r) { | ||
| struct driver_data* data = get_gadget_data(gadget); | ||
| int type = r->bRequestType & USB_TYPE_MASK; | ||
| printk("%s: bRequestType: %02x, bRequest: %02x, wValue: %04x, " | ||
| "wIndex: %04x, wLendth: %04x\n", | ||
| opg_driver_name, r->bRequestType, r->bRequest, r->wValue, r->wIndex, | ||
| r->wLength); | ||
| if (type == USB_TYPE_CLASS && r->bRequest == HID_REQ_GET_REPORT) { | ||
| switch(le16_to_cpu(r->wValue)) { | ||
| case 0x0100: | ||
| opg_update_report(); | ||
| memcpy(data->ep0_request->buf, opg_report, sizeof(opg_report)); | ||
| return sizeof(opg_report); | ||
| default: | ||
| printk("%s: report type/id: %04x\n", opg_driver_name, r->wValue); | ||
| break; | ||
| } | ||
| } | ||
| return -EOPNOTSUPP; | ||
| } |