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cdcacm: Add cdcacm bulkout request buffer config

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Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
This commit is contained in:
dongjiuzhu1 2023-08-02 12:19:59 +08:00 committed by Xiang Xiao
parent c16fd8c911
commit 1a69d3c6ee
2 changed files with 14 additions and 1 deletions
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8
drivers/usbdev/Kconfig
View File

@ -649,6 +649,14 @@ config CDCACM_NWRREQS
---help---
The number of write/read requests that can be in flight
config CDCACM_BULKOUT_REQLEN
int "Size of one read request buffer"
default 512 if USBDEV_DUALSPEED
default 256 if !USBDEV_DUALSPEED
---help---
Read buffer size maybe larger than the maxpacket size. Increasing
the buffer size can effectively improve the transmission speed.
config CDCACM_BULKIN_REQLEN
int "Size of one write request buffer"
default 768 if USBDEV_DUALSPEED

7
drivers/usbdev/cdcacm.c
View File

@ -626,7 +626,7 @@ static int cdcacm_requeue_rdrequest(FAR struct cdcacm_dev_s *priv,
/* Requeue the read request */
ep = priv->epbulkout;
req->len = ep->maxpacket;
req->len = MAX(CONFIG_CDCACM_BULKOUT_REQLEN, ep->maxpacket);
ret = EP_SUBMIT(ep, req);
if (ret != OK)
{
@ -1334,6 +1334,11 @@ static int cdcacm_bind(FAR struct usbdevclass_driver_s *driver,
reqlen = CONFIG_CDCACM_EPBULKOUT_FSSIZE;
}
if (CONFIG_CDCACM_BULKOUT_REQLEN > reqlen)
{
reqlen = CONFIG_CDCACM_BULKOUT_REQLEN;
}
for (i = 0; i < CONFIG_CDCACM_NRDREQS; i++)
{
rdcontainer = &priv->rdreqs[i];