From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/drivers/usb/mtu3/mtu3_gadget_ep0.c | 63 ++++++++++++++++++++-----------
1 files changed, 40 insertions(+), 23 deletions(-)
diff --git a/kernel/drivers/usb/mtu3/mtu3_gadget_ep0.c b/kernel/drivers/usb/mtu3/mtu3_gadget_ep0.c
index 3c464d8..0ca4721 100644
--- a/kernel/drivers/usb/mtu3/mtu3_gadget_ep0.c
+++ b/kernel/drivers/usb/mtu3/mtu3_gadget_ep0.c
@@ -11,6 +11,8 @@
#include <linux/usb/composite.h>
#include "mtu3.h"
+#include "mtu3_debug.h"
+#include "mtu3_trace.h"
/* ep0 is always mtu3->in_eps[0] */
#define next_ep0_request(mtu) next_request((mtu)->ep0)
@@ -151,6 +153,15 @@
set ? "SEND" : "CLEAR", decode_ep0_state(mtu));
}
+static void ep0_do_status_stage(struct mtu3 *mtu)
+{
+ void __iomem *mbase = mtu->mac_base;
+ u32 value;
+
+ value = mtu3_readl(mbase, U3D_EP0CSR) & EP0_W1C_BITS;
+ mtu3_writel(mbase, U3D_EP0CSR, value | EP0_SETUPPKTRDY | EP0_DATAEND);
+}
+
static int ep0_queue(struct mtu3_ep *mep0, struct mtu3_request *mreq);
static void ep0_dummy_complete(struct usb_ep *ep, struct usb_request *req)
@@ -267,20 +278,20 @@
u32 value;
switch (le16_to_cpu(setup->wIndex) >> 8) {
- case TEST_J:
- dev_dbg(mtu->dev, "TEST_J\n");
+ case USB_TEST_J:
+ dev_dbg(mtu->dev, "USB_TEST_J\n");
mtu->test_mode_nr = TEST_J_MODE;
break;
- case TEST_K:
- dev_dbg(mtu->dev, "TEST_K\n");
+ case USB_TEST_K:
+ dev_dbg(mtu->dev, "USB_TEST_K\n");
mtu->test_mode_nr = TEST_K_MODE;
break;
- case TEST_SE0_NAK:
- dev_dbg(mtu->dev, "TEST_SE0_NAK\n");
+ case USB_TEST_SE0_NAK:
+ dev_dbg(mtu->dev, "USB_TEST_SE0_NAK\n");
mtu->test_mode_nr = TEST_SE0_NAK_MODE;
break;
- case TEST_PACKET:
- dev_dbg(mtu->dev, "TEST_PACKET\n");
+ case USB_TEST_PACKET:
+ dev_dbg(mtu->dev, "USB_TEST_PACKET\n");
mtu->test_mode_nr = TEST_PACKET_MODE;
break;
default:
@@ -295,8 +306,7 @@
ep0_load_test_packet(mtu);
/* send status before entering test mode. */
- value = mtu3_readl(mbase, U3D_EP0CSR) & EP0_W1C_BITS;
- mtu3_writel(mbase, U3D_EP0CSR, value | EP0_SETUPPKTRDY | EP0_DATAEND);
+ ep0_do_status_stage(mtu);
/* wait for ACK status sent by host */
readl_poll_timeout_atomic(mbase + U3D_EP0CSR, value,
@@ -407,7 +417,7 @@
handled = 1;
/* ignore request if endpoint is wedged */
- if (mep->wedged)
+ if (mep->flags & MTU3_EP_WEDGE)
break;
mtu3_ep_stall_set(mep, set);
@@ -630,10 +640,10 @@
{
struct usb_ctrlrequest setup;
struct mtu3_request *mreq;
- void __iomem *mbase = mtu->mac_base;
int handled = 0;
ep0_read_setup(mtu, &setup);
+ trace_mtu3_handle_setup(&setup);
if ((setup.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD)
handled = handle_standard_request(mtu, &setup);
@@ -661,14 +671,19 @@
if (mtu->test_mode) {
; /* nothing to do */
} else if (handled == USB_GADGET_DELAYED_STATUS) {
- /* handle the delay STATUS phase till receive ep_queue on ep0 */
- mtu->delayed_status = true;
+
+ mreq = next_ep0_request(mtu);
+ if (mreq) {
+ /* already asked us to continue delayed status */
+ ep0_do_status_stage(mtu);
+ ep0_req_giveback(mtu, &mreq->request);
+ } else {
+ /* do delayed STATUS stage till receive ep0_queue */
+ mtu->delayed_status = true;
+ }
} else if (le16_to_cpu(setup.wLength) == 0) { /* no data stage */
- mtu3_writel(mbase, U3D_EP0CSR,
- (mtu3_readl(mbase, U3D_EP0CSR) & EP0_W1C_BITS)
- | EP0_SETUPPKTRDY | EP0_DATAEND);
-
+ ep0_do_status_stage(mtu);
/* complete zlp request directly */
mreq = next_ep0_request(mtu);
if (mreq && !mreq->request.length)
@@ -692,8 +707,12 @@
mtu3_writel(mbase, U3D_EPISR, int_status); /* W1C */
/* only handle ep0's */
- if (!(int_status & EP0ISR))
+ if (!(int_status & (EP0ISR | SETUPENDISR)))
return IRQ_NONE;
+
+ /* abort current SETUP, and process new one */
+ if (int_status & SETUPENDISR)
+ mtu->ep0_state = MU3D_EP0_STATE_SETUP;
csr = mtu3_readl(mbase, U3D_EP0CSR);
@@ -706,6 +725,7 @@
ret = IRQ_HANDLED;
}
dev_dbg(mtu->dev, "ep0_state: %s\n", decode_ep0_state(mtu));
+ mtu3_dbg_trace(mtu->dev, "ep0_state %s", decode_ep0_state(mtu));
switch (mtu->ep0_state) {
case MU3D_EP0_STATE_TX:
@@ -794,12 +814,9 @@
}
if (mtu->delayed_status) {
- u32 csr;
mtu->delayed_status = false;
- csr = mtu3_readl(mtu->mac_base, U3D_EP0CSR) & EP0_W1C_BITS;
- csr |= EP0_SETUPPKTRDY | EP0_DATAEND;
- mtu3_writel(mtu->mac_base, U3D_EP0CSR, csr);
+ ep0_do_status_stage(mtu);
/* needn't giveback the request for handling delay STATUS */
return 0;
}
--
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