From: Christian Lamparter <chunkeey@googlemail.com>
Date: Fri, 22 Mar 2013 21:21:34 +0000 (+0100)
Subject: carl9170 firmware: always reset usb endpoints
X-Git-Tag: 1.9.8~5
X-Git-Url: https://jxself.org/git/?p=carl9170fw.git;a=commitdiff_plain;h=1c85595695219f59d3c41bfd26b0a6a5dbad839c

carl9170 firmware: always reset usb endpoints

It isn't clear what the firmware is supposed to do
when it is initializing the usb phy. The spec says
something about clearing the STALLED/HALTED flags
however the original firmware doesn't do that?!

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
---

diff --git a/carlfw/include/usb.h b/carlfw/include/usb.h
index fb258bf..1066fe0 100644
--- a/carlfw/include/usb.h
+++ b/carlfw/include/usb.h
@@ -184,6 +184,7 @@ void __noreturn jump_to_bootcode(void);
 void send_cmd_to_host(const uint8_t len, const uint8_t type,
 		      const uint8_t ext, const uint8_t *body);
 
+void usb_reset_eps(void);
 void usb_init(void);
 void usb_ep0rx(void);
 void usb_ep0tx(void);
diff --git a/carlfw/usb/main.c b/carlfw/usb/main.c
index 890970c..1fb119e 100644
--- a/carlfw/usb/main.c
+++ b/carlfw/usb/main.c
@@ -377,6 +377,7 @@ static void usb_handler(uint8_t usb_interrupt_level1)
 
 		if (usb_interrupt_level2 & AR9170_USB_INTR_SRC7_USB_RESET) {
 			usb_reset_ack();
+			usb_reset_eps();
 			reboot();
 		}
 
diff --git a/carlfw/usb/usb.c b/carlfw/usb/usb.c
index 0c66b82..d7bc432 100644
--- a/carlfw/usb/usb.c
+++ b/carlfw/usb/usb.c
@@ -166,8 +166,7 @@ static struct ar9170_usb_config usb_config_fullspeed = {
 	},
 };
 
-#ifdef CONFIG_CARL9170FW_USB_MODESWITCH
-static void usb_reset_eps(void)
+void usb_reset_eps(void)
 {
 	unsigned int i;
 
@@ -188,8 +187,6 @@ static void usb_reset_eps(void)
 		usb_clear_output_ep_stall(i);
 	}
 }
-#endif /* CONFIG_CARL9170FW_USB_MODESWITCH */
-
 
 static void usb_pta_init(void)
 {
@@ -503,7 +500,7 @@ static int usb_get_configuration(const struct usb_ctrlrequest *ctrl)
 	if (USB_CHECK_REQTYPE(ctrl, USB_RECIP_DEVICE, USB_DIR_IN))
 		return -1;
 
-	return usb_ep0tx_data(&fw.usb.config, 1);
+	return usb_ep0tx_data(&fw.usb.config, fw.usb.config);
 }
 
 static int usb_set_configuration(const struct usb_ctrlrequest *ctrl)
@@ -519,10 +516,10 @@ static int usb_set_configuration(const struct usb_ctrlrequest *ctrl)
 		/* Disable Device */
 		andb(AR9170_USB_REG_DEVICE_ADDRESS,
 		      (uint8_t) ~(AR9170_USB_DEVICE_ADDRESS_CONFIGURE));
-#ifdef CONFIG_CARL9170FW_USB_MODESWITCH
 	case 1:
 		fw.usb.config = config;
 
+#ifdef CONFIG_CARL9170FW_USB_MODESWITCH
 		if (usb_detect_highspeed()) {
 			/* High Speed Configuration */
 			usb_init_highspeed_fifo_cfg();
@@ -530,25 +527,21 @@ static int usb_set_configuration(const struct usb_ctrlrequest *ctrl)
 			/* Full Speed Configuration */
 			usb_init_fullspeed_fifo_cfg();
 		}
+		/* usb_pta_init() ? */
 		break;
+#endif /* CONFIG_CARL9170FW_USB_MODESWITCH */
 
-	default:
-		return -1;
-	}
-	/* usb_pta_init() ? */
+		usb_reset_eps();
+		orb(AR9170_USB_REG_DEVICE_ADDRESS,
+		    (AR9170_USB_DEVICE_ADDRESS_CONFIGURE));
 
-	usb_reset_eps();
-	orb(AR9170_USB_REG_DEVICE_ADDRESS,
-	    (AR9170_USB_DEVICE_ADDRESS_CONFIGURE));
+		usb_enable_global_int();
+		usb_trigger_out();
+		return 1;
 
-	usb_enable_global_int();
-	usb_trigger_out();
-	return 1;
-#else
 	default:
 		return -1;
 	}
-#endif /* CONFIG_CARL9170FW_USB_MODESWITCH */
 }
 
 static int usb_set_address(const struct usb_ctrlrequest *ctrl)