update printer driver and demo

class/printer/usbd_printer.c

@@ -8,6 +8,7 @@
 
 struct printer_cfg_priv {
     uint8_t *device_id;
+    uint8_t device_id_len;
     uint8_t port_status;
 } usbd_printer_cfg;
 
@@ -19,7 +20,8 @@ static int printer_class_interface_request_handler(struct usb_setup_packet *setu
 
     switch (setup->bRequest) {
         case PRINTER_REQUEST_GET_DEVICE_ID:
-
+            memcpy(*data, usbd_printer_cfg.device_id, usbd_printer_cfg.device_id_len);
+            *len = usbd_printer_cfg.device_id_len;
             break;
         case PRINTER_REQUEST_GET_PORT_SATTUS:
 
@@ -46,18 +48,14 @@ static void printer_notify_handler(uint8_t event, void *arg)
     }
 }
 
-struct usbd_interface *usbd_printer_alloc_intf(void)
+struct usbd_interface *usbd_printer_init_intf(struct usbd_interface *intf, const uint8_t *device_id, uint8_t device_id_len)
 {
-    struct usbd_interface *intf = usb_malloc(sizeof(struct usbd_interface));
-    if (intf == NULL) {
-        USB_LOG_ERR("no mem to alloc intf\r\n");
-        return NULL;
-    }
-
     intf->class_interface_handler = printer_class_interface_request_handler;
     intf->class_endpoint_handler = NULL;
     intf->vendor_handler = NULL;
     intf->notify_handler = printer_notify_handler;
 
+    usbd_printer_cfg.device_id = device_id;
+    usbd_printer_cfg.device_id_len = device_id_len;
     return intf;
 }

class/printer/usbd_printer.h

@@ -12,8 +12,8 @@
 extern "C" {
 #endif
 
-/* Alloc printer interface driver */
-struct usbd_interface *usbd_printer_alloc_intf(void);
+/* Init printer interface driver */
+struct usbd_interface *usbd_printer_init_intf(struct usbd_interface *intf, const uint8_t *device_id, uint8_t device_id_len);
 
 #ifdef __cplusplus
 }

demo/printer_template.c

@@ -0,0 +1,163 @@
+#include "usbd_core.h"
+#include "usb_printer.h"
+
+/*!< endpoint address */
+#define PRINTER_IN_EP          0x81
+#define PRINTER_IN_EP_SIZE     0x40
+#define PRINTER_OUT_EP         0x02
+#define PRINTER_OUT_EP_SIZE    0x40
+
+#define USBD_VID           0x5A5A
+#define USBD_PID           0xA5A5
+#define USBD_MAX_POWER     100
+#define USBD_LANGID_STRING 0x0409
+
+/*!< config descriptor size */
+#define USB_CONFIG_SIZE (32)
+
+/*!< global descriptor */
+static const uint8_t printer_descriptor[] = {
+    USB_DEVICE_DESCRIPTOR_INIT(USB_2_0, 0x00, 0x00, 0x00, USBD_VID, USBD_PID, 0x0000, 0x01),
+    USB_CONFIG_DESCRIPTOR_INIT(USB_CONFIG_SIZE, 0x01, 0x01, USB_CONFIG_SELF_POWERED, USBD_MAX_POWER),
+    USB_INTERFACE_DESCRIPTOR_INIT(0x00, 0x00, 0x02, 0x07, 0x01, 0x02, 0x00),
+    USB_ENDPOINT_DESCRIPTOR_INIT(PRINTER_IN_EP, 0x02, PRINTER_IN_EP_SIZE, 0x00),
+    USB_ENDPOINT_DESCRIPTOR_INIT(PRINTER_OUT_EP, 0x02, PRINTER_OUT_EP_SIZE, 0x00),
+    ///////////////////////////////////////
+    /// string0 descriptor
+    ///////////////////////////////////////
+    USB_LANGID_INIT(USBD_LANGID_STRING),
+    ///////////////////////////////////////
+    /// string1 descriptor
+    ///////////////////////////////////////
+    0x14,                       /* bLength */
+    USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
+    'C', 0x00,                  /* wcChar0 */
+    'h', 0x00,                  /* wcChar1 */
+    'e', 0x00,                  /* wcChar2 */
+    'r', 0x00,                  /* wcChar3 */
+    'r', 0x00,                  /* wcChar4 */
+    'y', 0x00,                  /* wcChar5 */
+    'U', 0x00,                  /* wcChar6 */
+    'S', 0x00,                  /* wcChar7 */
+    'B', 0x00,                  /* wcChar8 */
+    ///////////////////////////////////////
+    /// string2 descriptor
+    ///////////////////////////////////////
+    0x2A,                       /* bLength */
+    USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
+    'C', 0x00,                  /* wcChar0 */
+    'h', 0x00,                  /* wcChar1 */
+    'e', 0x00,                  /* wcChar2 */
+    'r', 0x00,                  /* wcChar3 */
+    'r', 0x00,                  /* wcChar4 */
+    'y', 0x00,                  /* wcChar5 */
+    'U', 0x00,                  /* wcChar6 */
+    'S', 0x00,                  /* wcChar7 */
+    'B', 0x00,                  /* wcChar8 */
+    ' ', 0x00,                  /* wcChar9 */
+    'P', 0x00,                  /* wcChar10 */
+    'R', 0x00,                  /* wcChar11 */
+    'I', 0x00,                  /* wcChar12 */
+    'N', 0x00,                  /* wcChar13 */
+    'T', 0x00,                  /* wcChar14 */
+    ' ', 0x00,                  /* wcChar15 */
+    'D', 0x00,                  /* wcChar16 */
+    'E', 0x00,                  /* wcChar17 */
+    'M', 0x00,                  /* wcChar18 */
+    'O', 0x00,                  /* wcChar19 */
+    ///////////////////////////////////////
+    /// string3 descriptor
+    ///////////////////////////////////////
+    0x16,                       /* bLength */
+    USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
+    '2', 0x00,                  /* wcChar0 */
+    '0', 0x00,                  /* wcChar1 */
+    '2', 0x00,                  /* wcChar2 */
+    '2', 0x00,                  /* wcChar3 */
+    '1', 0x00,                  /* wcChar4 */
+    '2', 0x00,                  /* wcChar5 */
+    '3', 0x00,                  /* wcChar6 */
+    '4', 0x00,                  /* wcChar7 */
+    '5', 0x00,                  /* wcChar8 */
+    '6', 0x00,                  /* wcChar9 */
+#ifdef CONFIG_USB_HS
+    ///////////////////////////////////////
+    /// device qualifier descriptor
+    ///////////////////////////////////////
+    0x0a,
+    USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER,
+    0x00,
+    0x02,
+    0x02,
+    0x02,
+    0x01,
+    0x40,
+    0x01,
+    0x00,
+#endif
+    0x00
+};
+
+USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t read_buffer[PRINTER_OUT_EP_SIZE];
+USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t write_buffer[PRINTER_IN_EP_SIZE];
+
+void usbd_configure_done_callback(void)
+{
+    /* setup first out ep read transfer */
+    usbd_ep_start_read(PRINTER_OUT_EP, read_buffer, PRINTER_OUT_EP_SIZE);
+}
+
+void usbd_printer_bulk_out(uint8_t ep, uint32_t nbytes)
+{
+    USB_LOG_RAW("actual out len:%d\r\n", nbytes);
+    // for (int i = 0; i < 100; i++) {
+    //     printf("%02x ", read_buffer[i]);
+    // }
+    // printf("\r\n");
+    /* setup next out ep read transfer */
+    usbd_ep_start_read(PRINTER_OUT_EP, read_buffer, PRINTER_OUT_EP_SIZE);
+}
+
+void usbd_printer_bulk_in(uint8_t ep, uint32_t nbytes)
+{
+    USB_LOG_RAW("actual in len:%d\r\n", nbytes);
+
+    if ((nbytes % PRINTER_IN_EP_SIZE) == 0 && nbytes) {
+        /* send zlp */
+        usbd_ep_start_write(PRINTER_IN_EP, NULL, 0);
+    } else {
+    }
+}
+
+/*!< endpoint call back */
+struct usbd_endpoint printer_out_ep = {
+    .ep_addr = PRINTER_OUT_EP,
+    .ep_cb = usbd_printer_bulk_out
+};
+
+struct usbd_endpoint printer_in_ep = {
+    .ep_addr = PRINTER_IN_EP,
+    .ep_cb = usbd_printer_bulk_in
+};
+
+struct usbd_interface intf0;
+
+static const uint8_t printer_device_id[] =
+{
+  0x00, 51,
+  'M','F','G',':','C','B','M',';',
+  'C','M','D',':','G','D','I',';',
+  'M','D','L',':','C','B','M','1','0','0','0',';',
+  'C','L','S',':','P','R','I','N','T','E','R',';',
+  'M','O','D','E',':','G','D','I',';'
+};
+
+void printer_init(void)
+{
+  usbd_desc_register(printer_descriptor);
+  usbd_add_interface(usbd_printer_init_intf(&intf0), printer_device_id, sizeof(printer_device_id));
+  usbd_add_endpoint(&printer_out_ep);
+  usbd_add_endpoint(&printer_in_ep);
+
+  usbd_initialize();
+}