catarrh/simtrace2
1
0
Fork 0
mirror of https://gitea.osmocom.org/sim-card/simtrace2.git synced 2026-03-19 14:58:35 +03:00
Code Issues Packages Projects Releases Wiki Activity

firmware: More common infrastructure for USB handling

Browse Source 
Let's move low-level handling of endpoint queue refill from the
individual apps into common/shared code.

Now the main simply has to call usb_process() for every interface,
and inbound messages will be dispatched to call-back functions from
there.

Change-Id: Ic6f9c6c1ffdbb0c9c3b284371ecc83b17e3be746
This commit is contained in:
Harald Welte
2020-01-11 17:15:26 +01:00
parent 29de264d6e
commit d2bc858ddf
5 changed files with 109 additions and 63 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
firmware/libcommon/source/sniffer.c
View File

@@ -975,20 +975,28 @@ static void usb_send_change(uint32_t flags)
usb_msg_upd_len_and_submit(usb_msg);
}
/* handle incoming message from USB OUT EP */
static void dispatch_usb_out(struct msgb *msg, const struct usb_if *usb_if)
{
/* currently we don't need any incoming data */
msgb_free(msg);
}
static const struct usb_if sniffer_usb_if = {
.if_num = 0,
.ep_in = SIMTRACE_USB_EP_CARD_DATAIN,
.ep_int = SIMTRACE_USB_EP_CARD_INT,
.ep_out = SIMTRACE_USB_EP_CARD_DATAOUT,
.ops = {
.rx_out = dispatch_usb_out,
}
};
/* Main (idle/busy) loop of this USB configuration */
void Sniffer_run(void)
{
/* Handle USB queue */
/* first try to send any pending messages on INT */
usb_refill_to_host(SIMTRACE_USB_EP_CARD_INT);
/* then try to send any pending messages on IN */
usb_refill_to_host(SIMTRACE_USB_EP_CARD_DATAIN);
/* ensure we can handle incoming USB messages from the host */
/* currently we don't need any incoming data
usb_refill_from_host(SIMTRACE_USB_EP_CARD_DATAOUT);
struct llist_head *queue = usb_get_queue(SIMTRACE_USB_EP_CARD_DATAOUT);
process_any_usb_commands(queue);
*/
usb_process(&sniffer_usb_if);
/* WARNING: the signal data and flags are not synchronized. We have to hope
* the processing is fast enough to not land in the wrong state while data