modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/drivers/usb/mtu3/mtu3_gadget_ep0.c
..
..
@@ -11,6 +11,8 @@
11
11
 #include <linux/usb/composite.h>
12
12
 
13
13
 #include "mtu3.h"
14
+#include "mtu3_debug.h"
15
+#include "mtu3_trace.h"
14
16
 
15
17
 /* ep0 is always mtu3->in_eps[0] */
16
18
 #define	next_ep0_request(mtu)	next_request((mtu)->ep0)
..
..
@@ -151,6 +153,15 @@
151
153
 		set ? "SEND" : "CLEAR", decode_ep0_state(mtu));
152
154
 }
153
155
 
156
+static void ep0_do_status_stage(struct mtu3 *mtu)
157
+{
158
+	void __iomem *mbase = mtu->mac_base;
159
+	u32 value;
160
+
161
+	value = mtu3_readl(mbase, U3D_EP0CSR) & EP0_W1C_BITS;
162
+	mtu3_writel(mbase, U3D_EP0CSR, value | EP0_SETUPPKTRDY | EP0_DATAEND);
163
+}
164
+
154
165
 static int ep0_queue(struct mtu3_ep *mep0, struct mtu3_request *mreq);
155
166
 
156
167
 static void ep0_dummy_complete(struct usb_ep *ep, struct usb_request *req)
..
..
@@ -267,20 +278,20 @@
267
278
 	u32 value;
268
279
 
269
280
 	switch (le16_to_cpu(setup->wIndex) >> 8) {
270
-	case TEST_J:
271
-		dev_dbg(mtu->dev, "TEST_J\n");
281
+	case USB_TEST_J:
282
+		dev_dbg(mtu->dev, "USB_TEST_J\n");
272
283
 		mtu->test_mode_nr = TEST_J_MODE;
273
284
 		break;
274
-	case TEST_K:
275
-		dev_dbg(mtu->dev, "TEST_K\n");
285
+	case USB_TEST_K:
286
+		dev_dbg(mtu->dev, "USB_TEST_K\n");
276
287
 		mtu->test_mode_nr = TEST_K_MODE;
277
288
 		break;
278
-	case TEST_SE0_NAK:
279
-		dev_dbg(mtu->dev, "TEST_SE0_NAK\n");
289
+	case USB_TEST_SE0_NAK:
290
+		dev_dbg(mtu->dev, "USB_TEST_SE0_NAK\n");
280
291
 		mtu->test_mode_nr = TEST_SE0_NAK_MODE;
281
292
 		break;
282
-	case TEST_PACKET:
283
-		dev_dbg(mtu->dev, "TEST_PACKET\n");
293
+	case USB_TEST_PACKET:
294
+		dev_dbg(mtu->dev, "USB_TEST_PACKET\n");
284
295
 		mtu->test_mode_nr = TEST_PACKET_MODE;
285
296
 		break;
286
297
 	default:
..
..
@@ -295,8 +306,7 @@
295
306
 		ep0_load_test_packet(mtu);
296
307
 
297
308
 	/* send status before entering test mode. */
298
-	value = mtu3_readl(mbase, U3D_EP0CSR) & EP0_W1C_BITS;
299
-	mtu3_writel(mbase, U3D_EP0CSR, value | EP0_SETUPPKTRDY | EP0_DATAEND);
309
+	ep0_do_status_stage(mtu);
300
310
 
301
311
 	/* wait for ACK status sent by host */
302
312
 	readl_poll_timeout_atomic(mbase + U3D_EP0CSR, value,
..
..
@@ -407,7 +417,7 @@
407
417
 
408
418
 		handled = 1;
409
419
 		/* ignore request if endpoint is wedged */
410
-		if (mep->wedged)
420
+		if (mep->flags & MTU3_EP_WEDGE)
411
421
 			break;
412
422
 
413
423
 		mtu3_ep_stall_set(mep, set);
..
..
@@ -630,10 +640,10 @@
630
640
 {
631
641
 	struct usb_ctrlrequest setup;
632
642
 	struct mtu3_request *mreq;
633
-	void __iomem *mbase = mtu->mac_base;
634
643
 	int handled = 0;
635
644
 
636
645
 	ep0_read_setup(mtu, &setup);
646
+	trace_mtu3_handle_setup(&setup);
637
647
 
638
648
 	if ((setup.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD)
639
649
 		handled = handle_standard_request(mtu, &setup);
..
..
@@ -661,14 +671,19 @@
661
671
 	if (mtu->test_mode) {
662
672
 		;	/* nothing to do */
663
673
 	} else if (handled == USB_GADGET_DELAYED_STATUS) {
664
-		/* handle the delay STATUS phase till receive ep_queue on ep0 */
665
-		mtu->delayed_status = true;
674
+
675
+		mreq = next_ep0_request(mtu);
676
+		if (mreq) {
677
+			/* already asked us to continue delayed status */
678
+			ep0_do_status_stage(mtu);
679
+			ep0_req_giveback(mtu, &mreq->request);
680
+		} else {
681
+			/* do delayed STATUS stage till receive ep0_queue */
682
+			mtu->delayed_status = true;
683
+		}
666
684
 	} else if (le16_to_cpu(setup.wLength) == 0) { /* no data stage */
667
685
 
668
-		mtu3_writel(mbase, U3D_EP0CSR,
669
-			(mtu3_readl(mbase, U3D_EP0CSR) & EP0_W1C_BITS)
670
-			| EP0_SETUPPKTRDY | EP0_DATAEND);
671
-
686
+		ep0_do_status_stage(mtu);
672
687
 		/* complete zlp request directly */
673
688
 		mreq = next_ep0_request(mtu);
674
689
 		if (mreq && !mreq->request.length)
..
..
@@ -692,8 +707,12 @@
692
707
 	mtu3_writel(mbase, U3D_EPISR, int_status); /* W1C */
693
708
 
694
709
 	/* only handle ep0's */
695
-	if (!(int_status & EP0ISR))
710
+	if (!(int_status & (EP0ISR | SETUPENDISR)))
696
711
 		return IRQ_NONE;
712
+
713
+	/* abort current SETUP, and process new one */
714
+	if (int_status & SETUPENDISR)
715
+		mtu->ep0_state = MU3D_EP0_STATE_SETUP;
697
716
 
698
717
 	csr = mtu3_readl(mbase, U3D_EP0CSR);
699
718
 
..
..
@@ -706,6 +725,7 @@
706
725
 		ret = IRQ_HANDLED;
707
726
 	}
708
727
 	dev_dbg(mtu->dev, "ep0_state: %s\n", decode_ep0_state(mtu));
728
+	mtu3_dbg_trace(mtu->dev, "ep0_state %s", decode_ep0_state(mtu));
709
729
 
710
730
 	switch (mtu->ep0_state) {
711
731
 	case MU3D_EP0_STATE_TX:
..
..
@@ -794,12 +814,9 @@
794
814
 	}
795
815
 
796
816
 	if (mtu->delayed_status) {
797
-		u32 csr;
798
817
 
799
818
 		mtu->delayed_status = false;
800
-		csr = mtu3_readl(mtu->mac_base, U3D_EP0CSR) & EP0_W1C_BITS;
801
-		csr |= EP0_SETUPPKTRDY | EP0_DATAEND;
802
-		mtu3_writel(mtu->mac_base, U3D_EP0CSR, csr);
819
+		ep0_do_status_stage(mtu);
803
820
 		/* needn't giveback the request for handling delay STATUS */
804
821
 		return 0;
805
822
 	}