From d1dd3611ea59cf0c61d66d124a85709573cb7f61 Mon Sep 17 00:00:00 2001
From: laforge <laforge@6dc7ffe9-61d6-0310-9af1-9938baff3ed1>
Date: Wed, 4 Oct 2006 17:56:57 +0000
Subject: v0.4 of the readers uses a different pin for the USB pullup

git-svn-id: https://svn.openpcd.org:2342/trunk@261 6dc7ffe9-61d6-0310-9af1-9938baff3ed1
---
 firmware/src/dfu/dfu.c          |  2 ++
 firmware/src/openpcd.h          |  2 ++
 firmware/src/os/dbgu.c          |  4 ++--
 firmware/src/os/pcd_enumerate.c | 18 ++++++++++++++++--
 firmware/src/os/pcd_enumerate.h |  3 +++
 5 files changed, 25 insertions(+), 4 deletions(-)

(limited to 'firmware')

diff --git a/firmware/src/dfu/dfu.c b/firmware/src/dfu/dfu.c
index 97e4a72..dc97624 100644
--- a/firmware/src/dfu/dfu.c
+++ b/firmware/src/dfu/dfu.c
@@ -79,6 +79,7 @@ static void __dfufunc udp_init(void)
 	/* Enable UDP PullUp (USB_DP_PUP) : enable & Clear of the
 	 * corresponding PIO Set in PIO mode and Configure in Output */
 	AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, OPENPCD_PIO_UDP_PUP);
+	AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, OPENPCD_PIO_UDP_PUPv4);
 }
 
 /* Send Data through the control endpoint */
@@ -887,6 +888,7 @@ void __dfufunc dfu_main(void)
 
 	/* Clear for set the Pull up resistor */
 	AT91F_PIO_SetOutput(AT91C_BASE_PIOA, OPENPCD_PIO_UDP_PUP);
+	AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, OPENPCD_PIO_UDP_PUPv4);
 
 	flash_init();
 
diff --git a/firmware/src/openpcd.h b/firmware/src/openpcd.h
index f17b16e..f84f121 100644
--- a/firmware/src/openpcd.h
+++ b/firmware/src/openpcd.h
@@ -19,6 +19,7 @@
 #if defined(PCD)
 #define OPENPCD_PIO_UDP_CNX	AT91C_PIO_PA15
 #define OPENPCD_PIO_UDP_PUP	AT91C_PIO_PA22
+#define OPENPCD_PIO_UDP_PUPv4	AT91C_PIO_PA16
 #define OPENPCD_PIO_LED1	AT91C_PIO_PA25
 #define OPENPCD_PIO_LED2	AT91C_PIO_PA26
 #define PIO_BOOTLDR		AT91C_PIO_PA27
@@ -35,6 +36,7 @@
 #endif
 #endif
 
+
 #define OPENPCD_IRQ_RC632	AT91C_ID_IRQ1
 
 /* PIO A mapping for OpenPCD v0.2
diff --git a/firmware/src/os/dbgu.c b/firmware/src/os/dbgu.c
index a3a5941..e71b62e 100644
--- a/firmware/src/os/dbgu.c
+++ b/firmware/src/os/dbgu.c
@@ -85,10 +85,10 @@ static void DBGU_irq_handler(u_int32_t sr)
 	case '0':		//* info
 		AT91F_DBGU_Frame("Clear Pull up\n\r");
 		// Set
-		AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, OPENPCD_PIO_UDP_PUP);
+		udp_pullup_on();
 		break;
 	case '1':		//* info
-		AT91F_PIO_SetOutput(AT91C_BASE_PIOA, OPENPCD_PIO_UDP_PUP);
+		udp_pullup_off();
 		AT91F_DBGU_Printk("Set Pull up\n\r");
 		// Reset Application
 		Send_reset();
diff --git a/firmware/src/os/pcd_enumerate.c b/firmware/src/os/pcd_enumerate.c
index 24b2874..f201a32 100644
--- a/firmware/src/os/pcd_enumerate.c
+++ b/firmware/src/os/pcd_enumerate.c
@@ -487,6 +487,18 @@ out:
 	AT91F_AIC_ClearIt(AT91C_BASE_AIC, AT91C_ID_UDP);
 }
 
+void udp_pullup_on(void)
+{
+	AT91F_PIO_SetOutput(AT91C_BASE_PIOA, OPENPCD_PIO_UDP_PUP);
+	AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, OPENPCD_PIO_UDP_PUPv4);
+}
+
+void udp_pullup_off(void)
+{
+	AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, OPENPCD_PIO_UDP_PUP);
+	AT91F_PIO_SetOutput(AT91C_BASE_PIOA, OPENPCD_PIO_UDP_PUPv4);
+}
+
 /* Open USB Device Port  */
 void udp_open(void)
 {
@@ -508,16 +520,18 @@ void udp_open(void)
 
 	/* Set the Pull up resistor */
 	AT91F_PIO_SetOutput(AT91C_BASE_PIOA, OPENPCD_PIO_UDP_PUP);
+	AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, OPENPCD_PIO_UDP_PUPv4);
+	udp_pullup_on();
 }
 
 void udp_reset(void)
 {
 	volatile int i;
 
-	AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, OPENPCD_PIO_UDP_PUP);
+	udp_pullup_off();
 	for (i = 0; i < 0xffff; i++)
 		;
-	AT91F_PIO_SetOutput(AT91C_BASE_PIOA, OPENPCD_PIO_UDP_PUP);
+	udp_pullup_on();
 }
 
 #ifdef DEBUG_UDP_EP0
diff --git a/firmware/src/os/pcd_enumerate.h b/firmware/src/os/pcd_enumerate.h
index b2af3a1..ae15dc0 100644
--- a/firmware/src/os/pcd_enumerate.h
+++ b/firmware/src/os/pcd_enumerate.h
@@ -21,6 +21,9 @@ extern int udp_refill_ep(int ep);
 extern void udp_unthrottle(void);
 extern void udp_reset(void);
 
+extern void udp_pullup_off(void);
+extern void udp_pullup_on(void);
+
 struct ep_ctx {
 	atomic_t pkts_in_transit;
 	struct {
-- 
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