The GPIO interrupts are split into several port groups on all PP502x versions, so move those definitions into pp5020.h, and add the missing group. Make microSD hotswap detection work on Sansa c200. Note that microSD access itself does not work yet.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15460 a1c6a512-1295-4272-9138-f99709370657

5 files changed, 49 insertions, 19 deletions

diff --git a/firmware/export/pp5020.h b/firmware/export/pp5020.h
index 89acb2e..22a53e7 100644
--- a/firmware/export/pp5020.h
+++ b/firmware/export/pp5020.h
@@ -96,7 +96,9 @@
 #define USB_IRQ      24
 #define FIREWIRE_IRQ 25
 #define HI_IRQ       30
-#define GPIO_IRQ     (32+0)
+#define GPIO0_IRQ    (32+0) /* Ports A..D */
+#define GPIO1_IRQ    (32+1) /* Ports E..H */
+#define GPIO2_IRQ    (32+2) /* Ports I..L */
 #define SER0_IRQ     (32+4)
 #define SER1_IRQ     (32+5)
 #define I2C_IRQ      (32+8)
@@ -109,7 +111,9 @@
 #define USB_MASK      (1 << USB_IRQ)
 #define FIREWIRE_MASK (1 << FIREWIRE_IRQ)
 #define HI_MASK       (1 << HI_IRQ)
-#define GPIO_MASK     (1 << (GPIO_IRQ-32))
+#define GPIO0_MASK    (1 << (GPIO0_IRQ-32))
+#define GPIO1_MASK    (1 << (GPIO1_IRQ-32))
+#define GPIO2_MASK    (1 << (GPIO2_IRQ-32))
 #define SER0_MASK     (1 << (SER0_IRQ-32))
 #define SER1_MASK     (1 << (SER1_IRQ-32))
 #define I2C_MASK      (1 << (I2C_IRQ-32))
diff --git a/firmware/export/pp5024.h b/firmware/export/pp5024.h
index 5e2de17..9000321 100644
--- a/firmware/export/pp5024.h
+++ b/firmware/export/pp5024.h
@@ -23,14 +23,4 @@
    completely and redifine any minor differences */
 #include "pp5020.h"
 
-#undef GPIO_IRQ
-/* Ports A, B, ?? */
-#define GPIO0_IRQ   (32+0)
-/* Ports F, H, ?? */
-#define GPIO1_IRQ   (32+1)
-
-#undef GPIO_MASK
-#define GPIO0_MASK  (1 << (GPIO0_IRQ-32))
-#define GPIO1_MASK  (1 << (GPIO1_IRQ-32))
-
 #endif
diff --git a/firmware/target/arm/ipod/button-mini1g.c b/firmware/target/arm/ipod/button-mini1g.c
index 242f06c..f02e6ac 100644
--- a/firmware/target/arm/ipod/button-mini1g.c
+++ b/firmware/target/arm/ipod/button-mini1g.c
@@ -164,10 +164,10 @@ static int ipod_mini_button_read(void)
 
 void ipod_mini_button_int(void)
 {
-    CPU_HI_INT_CLR = GPIO_MASK;
+    CPU_HI_INT_CLR = GPIO0_MASK;
     int_btn = ipod_mini_button_read();
     //CPU_INT_EN = 0x40000000;
-    CPU_HI_INT_EN = GPIO_MASK;
+    CPU_HI_INT_EN = GPIO0_MASK;
 }
 
 void button_init_device(void)
@@ -190,7 +190,7 @@ void button_init_device(void)
     GPIOB_INT_EN = 0x30;
     /* unmask interrupt */
     CPU_INT_EN = 0x40000000;
-    CPU_HI_INT_EN = GPIO_MASK;
+    CPU_HI_INT_EN = GPIO0_MASK;
 }
 
 /*
diff --git a/firmware/target/arm/sandisk/ata-c200_e200.c b/firmware/target/arm/sandisk/ata-c200_e200.c
index 8e17152..a8e1651 100644
--- a/firmware/target/arm/sandisk/ata-c200_e200.c
+++ b/firmware/target/arm/sandisk/ata-c200_e200.c
@@ -1171,10 +1171,17 @@ int ata_init(void)
 
 #ifdef HAVE_HOTSWAP
         /* enable card detection port - mask interrupt first */
+#ifdef SANSA_E200
         GPIOA_INT_EN     &= ~0x80;
 
         GPIOA_OUTPUT_EN  &= ~0x80;
         GPIOA_ENABLE     |=  0x80;
+#elif defined SANSA_C200
+        GPIOL_INT_EN     &= ~0x08;
+
+        GPIOL_OUTPUT_EN  &= ~0x08;
+        GPIOL_ENABLE     |=  0x08;
+#endif
 #endif
         sd_select_device(0);
 
@@ -1188,6 +1195,7 @@ int ata_init(void)
         /* enable interupt for the mSD card */
         sleep(HZ/10);
 #ifdef HAVE_HOTSWAP
+#ifdef SANSA_E200
         CPU_INT_EN = HI_MASK;
         CPU_HI_INT_EN = GPIO0_MASK;
 
@@ -1195,6 +1203,15 @@ int ata_init(void)
 
         GPIOA_INT_CLR = 0x80;
         GPIOA_INT_EN |= 0x80;
+#elif defined SANSA_C200
+        CPU_INT_EN = HI_MASK;
+        CPU_HI_INT_EN = GPIO2_MASK;
+
+        GPIOL_INT_LEV = (GPIOL_INT_LEV & ~0x08) | (~GPIOL_INPUT_VAL & 0x08);
+
+        GPIOL_INT_CLR = 0x08;
+        GPIOL_INT_EN |= 0x08;
+#endif
 #endif
         spinlock_unlock(&sd_spin);
     }
@@ -1239,8 +1256,11 @@ tCardInfo *card_get_info_target(int card_no)
 #ifdef HAVE_HOTSWAP
 bool card_detect_target(void)
 {
-    /* 0x00:inserted, 0x80:not inserted */
-    return (GPIOA_INPUT_VAL & 0x80) == 0;
+#ifdef SANSA_E200
+    return (GPIOA_INPUT_VAL & 0x80) == 0; /* low active */
+#elif defined SANSA_C200
+    return (GPIOL_INPUT_VAL & 0x08) != 0; /* high active */
+#endif
 }
 
 static bool sd1_oneshot_callback(struct timeout *tmo)
@@ -1256,6 +1276,7 @@ void microsd_int(void)
 {
     static struct timeout sd1_oneshot;
 
+#ifdef SANSA_E200
     int detect = GPIOA_INPUT_VAL & 0x80;
 
     GPIOA_INT_LEV = (GPIOA_INT_LEV & ~0x80) | (detect ^ 0x80);
@@ -1263,5 +1284,15 @@ void microsd_int(void)
 
     timeout_register(&sd1_oneshot, sd1_oneshot_callback,
                      detect ? 1 : HZ/2, detect == 0);
+#elif defined SANSA_C200
+    int detect = GPIOL_INPUT_VAL & 0x08;
+
+    GPIOL_INT_LEV = (GPIOL_INT_LEV & ~0x08) | (detect ^ 0x08);
+    GPIOL_INT_CLR = 0x08;
+
+    timeout_register(&sd1_oneshot, sd1_oneshot_callback,
+                     detect ? HZ/2 : 1, detect != 0);
+#endif
+
 }
 #endif /* HAVE_HOTSWAP */
diff --git a/firmware/target/arm/system-pp502x.c b/firmware/target/arm/system-pp502x.c
index 8d253a7..0f24997 100644
--- a/firmware/target/arm/system-pp502x.c
+++ b/firmware/target/arm/system-pp502x.c
@@ -27,10 +27,10 @@ extern void TIMER1(void);
 extern void TIMER2(void);
 extern void ipod_mini_button_int(void); /* iPod Mini 1st gen only */
 extern void ipod_4g_button_int(void);   /* iPod 4th gen and higher only */
+extern void microsd_int(void);          /* Sansa E200 and C200 */
 #ifdef SANSA_E200
 extern void button_int(void);
 extern void clickwheel_int(void);
-extern void microsd_int(void);
 #endif
 
 #ifdef HAVE_USBSTACK
@@ -49,7 +49,7 @@ void irq(void)
         } else if (CPU_INT_STAT & TIMER2_MASK)
             TIMER2();
 #if defined(IPOD_MINI) /* Mini 1st gen only, mini 2nd gen uses iPod 4G code */
-        else if (CPU_HI_INT_STAT & GPIO_MASK)
+        else if (CPU_HI_INT_STAT & GPIO0_MASK)
             ipod_mini_button_int();
 #elif CONFIG_KEYPAD == IPOD_4G_PAD /* except Mini 1st gen, handled above */
         else if (CPU_HI_INT_STAT & I2C_MASK)
@@ -65,6 +65,11 @@ void irq(void)
             if (GPIOH_INT_STAT & 0xc0)
                 clickwheel_int();
         }
+#elif defined(SANSA_C200)
+        else if (CPU_HI_INT_STAT & GPIO2_MASK) {
+            if (GPIOL_INT_STAT & 0x08)
+                microsd_int();
+        }
 #endif
     } else {
         if (COP_INT_STAT & TIMER2_MASK)