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usb: device_next: use USB notification in CDC ACM implementation 

Add message types for line coding and contol line state updates.
Add a publish message function that takes a pointer to a device
structure as payload, and use USB notification in the CDC ACM
implementation.

Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
This commit is contained in:
Johann Fischer 2024-01-30 00:18:24 +01:00 committed by Carles Cufí
parent 3aef852fc0
commit 567827add8
4 changed files with 34 additions and 0 deletions
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6
include/zephyr/usb/usbd_msg.h
View File

@ -44,6 +44,10 @@ enum usbd_msg_type {
USBD_MSG_UDC_ERROR,
/** Unrecoverable device stack error message */
USBD_MSG_STACK_ERROR,
/** CDC ACM Line Coding update */
USBD_MSG_CDC_ACM_LINE_CODING,
/** CDC ACM Line State update */
USBD_MSG_CDC_ACM_CONTROL_LINE_STATE,
/** Maximum number of message types */
USBD_MSG_MAX_NUMBER,
};
@ -57,6 +61,8 @@ static const char *const usbd_msg_type_list[] = {
"Bus reset",
"Controller error",
"Stack error",
"CDC ACM line coding",
"CDC ACM control line state",
};
BUILD_ASSERT(ARRAY_SIZE(usbd_msg_type_list) == USBD_MSG_MAX_NUMBER,

5
subsys/usb/device_next/class/usbd_cdc_acm.c
View File

@ -18,6 +18,8 @@
#include <zephyr/drivers/usb/udc.h>
#include "usbd_msg.h"
#include <zephyr/logging/log.h>
LOG_MODULE_REGISTER(usbd_cdc_acm, CONFIG_USBD_CDC_ACM_LOG_LEVEL);
@ -359,6 +361,7 @@ static int usbd_cdc_acm_ctd(struct usbd_class_node *const c_nd,
const struct usb_setup_packet *const setup,
const struct net_buf *const buf)
{
struct usbd_contex *uds_ctx = c_nd->data->uds_ctx;
const struct device *dev = c_nd->data->priv;
struct cdc_acm_uart_data *data = dev->data;
size_t len;
@ -373,11 +376,13 @@ static int usbd_cdc_acm_ctd(struct usbd_class_node *const c_nd,
memcpy(&data->line_coding, buf->data, len);
cdc_acm_update_uart_cfg(data);
usbd_msg_pub_device(uds_ctx, USBD_MSG_CDC_ACM_LINE_CODING, dev);
return 0;
case SET_CONTROL_LINE_STATE:
data->line_state = setup->wValue;
cdc_acm_update_linestate(data);
usbd_msg_pub_device(uds_ctx, USBD_MSG_CDC_ACM_CONTROL_LINE_STATE, dev);
return 0;
default:

13
subsys/usb/device_next/usbd_msg.c
View File

@ -94,3 +94,16 @@ void usbd_msg_pub_simple(struct usbd_contex *const ctx,
usbd_msg_pub(ctx, msg);
}
}
void usbd_msg_pub_device(struct usbd_contex *const ctx,
const enum usbd_msg_type type, const struct device *const dev)
{
const struct usbd_msg msg = {
.type = type,
.dev = dev,
};
if (ctx->msg_cb != NULL) {
usbd_msg_pub(ctx, msg);
}
}

10
subsys/usb/device_next/usbd_msg.h
View File

@ -19,4 +19,14 @@
void usbd_msg_pub_simple(struct usbd_contex *const ctx,
const enum usbd_msg_type type, const int status);
/**
* @brief Publish USB device message with pointer to a device payload
*
* @param[in] uds_ctx Pointer to a device context
* @param[in] type Message type
* @param[in] dev Pointer to a device structure
*/
void usbd_msg_pub_device(struct usbd_contex *const ctx,
const enum usbd_msg_type type, const struct device *const dev);
#endif /* ZEPHYR_INCLUDE_USBD_MSG_H */