From 2f4b88e9bb157a81cd57b31f8f22dbecc49f368a Mon Sep 17 00:00:00 2001
From: Linus Nielsen Feltzing <linus@haxx.se>
Date: Tue, 23 Jul 2002 15:02:25 +0000
Subject: Possibly better USB handling

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@1419 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/drivers/ata.c | 46 ++++++++++++++++++++++------------------------
 firmware/usb.c         | 13 +++++--------
 2 files changed, 27 insertions(+), 32 deletions(-)

diff --git a/firmware/drivers/ata.c b/firmware/drivers/ata.c
index 3fdc93669e..6cab3d3872 100644
--- a/firmware/drivers/ata.c
+++ b/firmware/drivers/ata.c
@@ -125,7 +125,6 @@ int ata_read_sectors(unsigned long start,
 
     if ( sleeping ) {
         if (ata_soft_reset()) {
-            mutex_unlock(&ata_mtx);
             return -1;
         }
     }
@@ -184,7 +183,6 @@ int ata_write_sectors(unsigned long start,
 
     if ( sleeping ) {
         if (ata_soft_reset()) {
-            mutex_unlock(&ata_mtx);
             return -1;
         }
     }
@@ -307,14 +305,14 @@ static void ata_thread(void)
     while (1) {
         queue_wait(&ata_queue, &ev);
         switch ( ev.id ) {
-	    case SYS_USB_CONNECTED:
-		/* Tell the USB thread that we are safe */
-		DEBUGF("backlight_thread got SYS_USB_CONNECTED\n");
-		usb_acknowledge(SYS_USB_CONNECTED_ACK);
+            case SYS_USB_CONNECTED:
+                /* Tell the USB thread that we are safe */
+                DEBUGF("backlight_thread got SYS_USB_CONNECTED\n");
+                usb_acknowledge(SYS_USB_CONNECTED_ACK);
 
-		/* Wait until the USB cable is extracted again */
-		usb_wait_for_disconnect(&ata_queue);
-		break;
+                /* Wait until the USB cable is extracted again */
+                usb_wait_for_disconnect(&ata_queue);
+                break;
 
             case Q_SLEEP:
                 ata_perform_sleep();
@@ -372,7 +370,7 @@ int ata_soft_reset(void)
     retry_count = 8;
     do
     {
-	ret = wait_for_rdy();
+        ret = wait_for_rdy();
     } while(!ret && retry_count--);
 
     /* Massage the return code so it is 0 on success and -1 on failure */
@@ -447,9 +445,9 @@ static int io_address_detect(void)
 void ata_enable(bool on)
 {
     if(on)
-	PADR &= ~0x80; /* enable ATA */
+        PADR &= ~0x80; /* enable ATA */
     else
-	PADR |= 0x80;   /* disable ATA */
+        PADR |= 0x80;   /* disable ATA */
 
     PAIOR |= 0x80;
 }
@@ -462,19 +460,19 @@ int ata_init(void)
 
     ata_enable(true);
 
-    if (master_slave_detect())
-        return -1;
-
-    if (io_address_detect())
-        return -2;
-
-    if (check_registers())
-        return -3;
-
-    if (freeze_lock())
-        return -4;
-
     if ( !initialized ) {
+        if (master_slave_detect())
+            return -1;
+        
+        if (io_address_detect())
+            return -2;
+        
+        if (check_registers())
+            return -3;
+        
+        if (freeze_lock())
+            return -4;
+        
         queue_init(&ata_queue);
         create_thread(ata_thread, ata_stack,
                       sizeof(ata_stack), ata_thread_name);
diff --git a/firmware/usb.c b/firmware/usb.c
index d7112b971f..13bbc173c2 100644
--- a/firmware/usb.c
+++ b/firmware/usb.c
@@ -32,9 +32,7 @@
 #include "button.h"
 #include "sprintf.h"
 
-#ifdef ARCHOS_RECORDER
-extern void dbg_ports(void);
-#endif
+extern void dbg_ports(void); /* NASTY! defined in apps/ */
 
 #define USB_REALLY_BRAVE
 
@@ -86,6 +84,7 @@ static void usb_slave_mode(bool on)
     if(on)
     {
         DEBUGF("Entering USB slave mode\n");
+        ata_soft_reset();
         ata_enable(false);
         usb_enable(true);
     }
@@ -101,16 +100,14 @@ static void usb_slave_mode(bool on)
         rc = ata_init();
         if(rc)
         {
-#ifdef ARCHOS_RECORDER
             char str[32];
             lcd_clear_display();
             snprintf(str, 31, "ATA error: %d", rc);
-            lcd_puts(0, 1, str);
-            lcd_puts(0, 3, "Press ON to debug");
+            lcd_puts(0, 0, str);
+            lcd_puts(0, 1, "Press ON to debug");
             lcd_update();
             while(button_get(true) != BUTTON_ON) {};
             dbg_ports();
-#endif
             panicf("ata: %d",rc);
         }
     
@@ -248,7 +245,7 @@ static void usb_tick(void)
 
 void usb_acknowledge(int id)
 {
-   queue_post(&usb_queue, id, NULL);
+    queue_post(&usb_queue, id, NULL);
 }
 
 void usb_init(void)
-- 
cgit v1.2.3