Improved handling of the ONKEY1S interrupt. Off for the remote must be explicitly mapped now.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10932 a1c6a512-1295-4272-9138-f99709370657

firmware/powermgmt.c

@@ -59,6 +59,10 @@
 #include <time.h>
 #endif
 
+#ifdef IAUDIO_X5
+extern void pcf50606_reset_timeout(void);
+#endif
+
 /*
  * Define DEBUG_FILE to create a csv (spreadsheet) with battery information
  * in it (one sample per minute).  This is only for very low level debug.
@@ -1010,6 +1014,13 @@ void sys_poweroff(void)
 void cancel_shutdown(void)
 {
     logf("sys_cancel_shutdown()");
+
+#ifdef IAUDIO_X5
+    /* TODO: Move some things to target/ tree */
+    if (shutdown_timeout)
+        pcf50606_reset_timeout();
+#endif
+
     shutdown_timeout = 0;
 }
 

firmware/target/coldfire/iaudio/x5/pcf50606-x5.c

@@ -26,6 +26,7 @@
 #include "debug.h"
 #include "string.h"
 #include "generic_i2c.h"
+#include "powermgmt.h"
 
 void pcf50606_sda_output(void)
 {
@@ -154,7 +155,13 @@ static void set_voltages(void)
 
 void pcf50606_init(void)
 {
-    unsigned char read[3];
+    /* inital data is interrupt masks */
+    unsigned char data[3] =
+    {
+        ~0x04, /* unmask ONKEY1S */
+        ~0x00,
+        ~0x00
+    };
 
     /* Bit banged I2C */
     or_l(0x00001000, &GPIO1_OUT);
@@ -169,10 +176,10 @@ void pcf50606_init(void)
     /* make sure GPI0 interrupt is off before unmasking anything */
     and_l(~0xF, &INTPRI5);  /* INT32 - Priority 0 (Off) */
 
-    /* unmask ONKEY1S - ONKEY held low for 1 second */
+    /* unmask the PMU interrupts we want to service */
-    pcf50606_write(0x05, ~0x04);
+    pcf50606_write_multiple(0x05, data, 3);
     /* clear INT1-3 as these are left set after standby */
-    pcf50606_read_multiple(0x02, read, 3);
+    pcf50606_read_multiple(0x02, data, 3);
 
     /* Set to read pcf50606 INT but keep GPI0 off until init completes */
     and_l(~0x00000001, &GPIO_ENABLE);
@@ -184,11 +191,6 @@ void pcf50606_init(void)
     pcf50606_write(0x39, 0x00); /* GPOOD0 = green led OFF */
     pcf50606_write(0x3a, 0x00); /* GPOOD1 = red led OFF */
 
-    /* D305A datasheet says PWM clock frequency should be 400Hz - 2000Hz so
-     * I changed it from 7kHz to 512Hz. The lower frequency looks the same.
-     * GPO1 is also inverted so that display brightness increases with PWM
-     * cycle.
-     */
     pcf50606_write(0x35, 0x11); /* Backlight PWM = 512Hz, 8/16, Active */
 #ifdef BOOTLOADER
     /* Backlight starts OFF in bootloader */
@@ -199,7 +201,14 @@ void pcf50606_init(void)
 #endif
 
     /* allow GPI0 interrupts from PMU now */
-    or_l(0x6, &INTPRI5); /* INT32 - Priority 6 */
+    or_l(0x3, &INTPRI5); /* INT32 - Priority 3 */
+}
+
+void pcf50606_reset_timeout(void)
+{
+    int level = set_irq_level(HIGHEST_IRQ_LEVEL);
+    pcf50606_write(0x08, pcf50606_read(0x08) | 0x02); /* OOCC1 - TOTRST=1 */
+    set_irq_level(level);
 }
 
 /* Handles interrupts generated by the pcf50606 */
@@ -208,15 +217,16 @@ void GPI0(void)
 {
     char read[3]; /* 0 = INT1, 1 = INT2, 2 = INT3 */
 
-    /* Clear pending interrupts from pcf50606 - reading all INT* registers
+    /* clear pending interrupts from pcf50606 */
-       resets the INT pin to high */
     pcf50606_read_multiple(0x02, read, 3);
 
     if (read[0] & 0x04)
     {
-        /** ONKEY1S **/
+        /* ONKEY1S */
-        /* reset timeout or else pcf50606 will go into standby in 8s */
+        if (GPIO_READ & 0x02000000)
-        pcf50606_write(0x08, pcf50606_read(0x08) | 0x02); /* OOCC1 - TOTRST=1 */
+            sys_poweroff();             /* main ONKEY */
+        else
+            pcf50606_reset_timeout();   /* remote ONKEY */
     }
 
     /* Clear pending GPI0 interrupts */