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get linecoding by users

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This commit is contained in:
sakumisu
2022-08-19 23:26:36 +08:00
parent 2d5e3cb9f0
commit f2f3de1001
2 changed files with 31 additions and 85 deletions
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113
class/cdc/usbd_cdc.c
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@@ -9,54 +9,16 @@
const char *stop_name[] = { "1", "1.5", "2" };
const char *parity_name[] = { "N", "O", "E", "M", "S" };
struct usbd_cdc {
struct cdc_line_coding line_coding;
bool dtr;
bool rts;
uint8_t intf_num;
usb_slist_t list;
};
static usb_slist_t usbd_cdc_head = USB_SLIST_OBJECT_INIT(usbd_cdc_head);
#ifndef CONFIG_USBDEV_CDC_ACM_UART
struct usbd_cdc g_usbd_cdc_acm_class;
static void usbd_cdc_acm_reset(void)
{
memset(&g_usbd_cdc_acm_class, 0, sizeof(struct usbd_cdc));
g_usbd_cdc_acm_class.line_coding.dwDTERate = 2000000;
g_usbd_cdc_acm_class.line_coding.bDataBits = 8;
g_usbd_cdc_acm_class.line_coding.bParityType = 0;
g_usbd_cdc_acm_class.line_coding.bCharFormat = 0;
}
#endif
static int cdc_acm_class_request_handler(struct usb_setup_packet *setup, uint8_t **data, uint32_t *len)
{
USB_LOG_DBG("CDC Class request: "
"bRequest 0x%02x\r\n",
setup->bRequest);
struct usbd_cdc *current_cdc_acm_class = NULL;
struct cdc_line_coding line_coding;
bool dtr, rts;
uint8_t intf = LO_BYTE(setup->wIndex);
#ifdef CONFIG_USBDEV_CDC_ACM_UART
usb_slist_t *i;
usb_slist_for_each(i, &usbd_cdc_head)
{
struct usbd_cdc *cdc_acm_class = usb_slist_entry(i, struct usbd_cdc, list);
if (cdc_acm_class->intf_num == intf) {
current_cdc_acm_class = cdc_acm_class;
break;
}
}
if (current_cdc_acm_class == NULL) {
return -2;
}
#else
current_cdc_acm_class = &g_usbd_cdc_acm_class;
#endif
switch (setup->bRequest) {
case CDC_REQUEST_SET_LINE_CODING:
@@ -77,37 +39,37 @@ static int cdc_acm_class_request_handler(struct usb_setup_packet *setup, uint8_t
/* 4 - Space */
/* 6 | bDataBits | 1 | Number Data bits (5, 6, 7, 8 or 16). */
/*******************************************************************************/
memcpy(&current_cdc_acm_class->line_coding, *data, setup->wLength);
memcpy(&line_coding, *data, setup->wLength);
USB_LOG_DBG("Set intf:%d linecoding <%d %d %s %s>\r\n",
intf,
current_cdc_acm_class->line_coding.dwDTERate,
current_cdc_acm_class->line_coding.bDataBits,
parity_name[current_cdc_acm_class->line_coding.bParityType],
stop_name[current_cdc_acm_class->line_coding.bCharFormat]);
usbd_cdc_acm_set_line_coding(intf, current_cdc_acm_class->line_coding.dwDTERate, current_cdc_acm_class->line_coding.bDataBits,
current_cdc_acm_class->line_coding.bParityType, current_cdc_acm_class->line_coding.bCharFormat);
line_coding.dwDTERate,
line_coding.bDataBits,
parity_name[line_coding.bParityType],
stop_name[line_coding.bCharFormat]);
usbd_cdc_acm_set_line_coding(intf, &line_coding);
break;
case CDC_REQUEST_SET_CONTROL_LINE_STATE: {
current_cdc_acm_class->dtr = (setup->wValue & 0x0001);
current_cdc_acm_class->rts = (setup->wValue & 0x0002);
dtr = (setup->wValue & 0x0001);
rts = (setup->wValue & 0x0002);
USB_LOG_DBG("Set intf:%d DTR 0x%x,RTS 0x%x\r\n",
intf,
current_cdc_acm_class->dtr,
current_cdc_acm_class->rts);
usbd_cdc_acm_set_dtr(intf, current_cdc_acm_class->dtr);
usbd_cdc_acm_set_rts(intf, current_cdc_acm_class->rts);
dtr,
rts);
usbd_cdc_acm_set_dtr(intf, dtr);
usbd_cdc_acm_set_rts(intf, rts);
} break;
case CDC_REQUEST_GET_LINE_CODING:
*data = (uint8_t *)(&current_cdc_acm_class->line_coding);
usbd_cdc_acm_get_line_coding(intf, &line_coding);
memcpy(*data, &line_coding, 7);
*len = 7;
USB_LOG_DBG("Get intf:%d linecoding %d %d %d %d\r\n",
intf,
current_cdc_acm_class->line_coding.dwDTERate,
current_cdc_acm_class->line_coding.bCharFormat,
current_cdc_acm_class->line_coding.bParityType,
current_cdc_acm_class->line_coding.bDataBits);
line_coding.dwDTERate,
line_coding.bCharFormat,
line_coding.bParityType,
line_coding.bDataBits);
break;
default:
@@ -122,34 +84,12 @@ static void cdc_notify_handler(uint8_t event, void *arg)
{
switch (event) {
case USBD_EVENT_RESET:
#ifndef CONFIG_USBDEV_CDC_ACM_UART
usbd_cdc_acm_reset();
#endif
break;
default:
break;
}
}
int usbd_cdc_acm_alloc(uint8_t intf)
{
struct usbd_cdc *cdc_acm_class = usb_malloc(sizeof(struct usbd_cdc));
if (cdc_acm_class == NULL) {
USB_LOG_ERR("no memory to alloc for cdc_acm_class\r\n");
return -1;
}
memset(cdc_acm_class, 0, sizeof(struct usbd_cdc));
cdc_acm_class->line_coding.dwDTERate = 2000000;
cdc_acm_class->line_coding.bDataBits = 8;
cdc_acm_class->line_coding.bParityType = 0;
cdc_acm_class->line_coding.bCharFormat = 0;
cdc_acm_class->intf_num = intf;
usb_slist_add_tail(&usbd_cdc_head, &cdc_acm_class->list);
return 0;
}
void usbd_cdc_add_acm_interface(usbd_class_t *devclass, usbd_interface_t *intf)
{
static usbd_class_t *last_class = NULL;
@@ -164,15 +104,20 @@ void usbd_cdc_add_acm_interface(usbd_class_t *devclass, usbd_interface_t *intf)
intf->vendor_handler = NULL;
intf->notify_handler = cdc_notify_handler;
usbd_class_add_interface(devclass, intf);
#ifdef CONFIG_USBDEV_CDC_ACM_UART
usbd_cdc_acm_alloc(intf->intf_num);
#endif
}
__WEAK void usbd_cdc_acm_set_line_coding(uint8_t intf, uint32_t baudrate, uint8_t databits, uint8_t parity, uint8_t stopbits)
__WEAK void usbd_cdc_acm_set_line_coding(uint8_t intf, struct cdc_line_coding *line_coding)
{
}
__WEAK void usbd_cdc_acm_get_line_coding(uint8_t intf, struct cdc_line_coding *line_coding)
{
line_coding->dwDTERate = 2000000;
line_coding->bDataBits = 8;
line_coding->bParityType = 0;
line_coding->bCharFormat = 0;
}
__WEAK void usbd_cdc_acm_set_dtr(uint8_t intf, bool dtr)
{
}